diff -druNp --no-dereference linux-libre-4.4-gnu/arch/alpha/include/asm/types.h linux-libre-4.4.107-gnu/arch/alpha/include/asm/types.h
--- linux-libre-4.4-gnu/arch/alpha/include/asm/types.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/alpha/include/asm/types.h	2017-12-20 04:05:01.000000000 -0500
@@ -1,6 +1,6 @@
 #ifndef _ALPHA_TYPES_H
 #define _ALPHA_TYPES_H
 
-#include <asm-generic/int-ll64.h>
+#include <uapi/asm/types.h>
 
 #endif /* _ALPHA_TYPES_H */
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/alpha/include/asm/uaccess.h linux-libre-4.4.107-gnu/arch/alpha/include/asm/uaccess.h
--- linux-libre-4.4-gnu/arch/alpha/include/asm/uaccess.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/alpha/include/asm/uaccess.h	2017-12-20 04:05:01.000000000 -0500
@@ -371,14 +371,6 @@ __copy_tofrom_user_nocheck(void *to, con
 	return __cu_len;
 }
 
-extern inline long
-__copy_tofrom_user(void *to, const void *from, long len, const void __user *validate)
-{
-	if (__access_ok((unsigned long)validate, len, get_fs()))
-		len = __copy_tofrom_user_nocheck(to, from, len);
-	return len;
-}
-
 #define __copy_to_user(to, from, n)					\
 ({									\
 	__chk_user_ptr(to);						\
@@ -393,17 +385,22 @@ __copy_tofrom_user(void *to, const void
 #define __copy_to_user_inatomic __copy_to_user
 #define __copy_from_user_inatomic __copy_from_user
 
-
 extern inline long
 copy_to_user(void __user *to, const void *from, long n)
 {
-	return __copy_tofrom_user((__force void *)to, from, n, to);
+	if (likely(__access_ok((unsigned long)to, n, get_fs())))
+		n = __copy_tofrom_user_nocheck((__force void *)to, from, n);
+	return n;
 }
 
 extern inline long
 copy_from_user(void *to, const void __user *from, long n)
 {
-	return __copy_tofrom_user(to, (__force void *)from, n, from);
+	if (likely(__access_ok((unsigned long)from, n, get_fs())))
+		n = __copy_tofrom_user_nocheck(to, (__force void *)from, n);
+	else
+		memset(to, 0, n);
+	return n;
 }
 
 extern void __do_clear_user(void);
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/alpha/include/uapi/asm/types.h linux-libre-4.4.107-gnu/arch/alpha/include/uapi/asm/types.h
--- linux-libre-4.4-gnu/arch/alpha/include/uapi/asm/types.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/alpha/include/uapi/asm/types.h	2017-12-20 04:05:01.000000000 -0500
@@ -9,8 +9,18 @@
  * need to be careful to avoid a name clashes.
  */
 
-#ifndef __KERNEL__
+/*
+ * This is here because we used to use l64 for alpha
+ * and we don't want to impact user mode with our change to ll64
+ * in the kernel.
+ *
+ * However, some user programs are fine with this.  They can
+ * flag __SANE_USERSPACE_TYPES__ to get int-ll64.h here.
+ */
+#if !defined(__SANE_USERSPACE_TYPES__) && !defined(__KERNEL__)
 #include <asm-generic/int-l64.h>
+#else
+#include <asm-generic/int-ll64.h>
 #endif
 
 #endif /* _UAPI_ALPHA_TYPES_H */
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/alpha/kernel/osf_sys.c linux-libre-4.4.107-gnu/arch/alpha/kernel/osf_sys.c
--- linux-libre-4.4-gnu/arch/alpha/kernel/osf_sys.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/alpha/kernel/osf_sys.c	2017-12-20 04:05:01.000000000 -0500
@@ -1188,8 +1188,10 @@ SYSCALL_DEFINE4(osf_wait4, pid_t, pid, i
 	if (!access_ok(VERIFY_WRITE, ur, sizeof(*ur)))
 		return -EFAULT;
 
-	err = 0;
-	err |= put_user(status, ustatus);
+	err = put_user(status, ustatus);
+	if (ret < 0)
+		return err ? err : ret;
+
 	err |= __put_user(r.ru_utime.tv_sec, &ur->ru_utime.tv_sec);
 	err |= __put_user(r.ru_utime.tv_usec, &ur->ru_utime.tv_usec);
 	err |= __put_user(r.ru_stime.tv_sec, &ur->ru_stime.tv_sec);
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arc/include/asm/arcregs.h linux-libre-4.4.107-gnu/arch/arc/include/asm/arcregs.h
--- linux-libre-4.4-gnu/arch/arc/include/asm/arcregs.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arc/include/asm/arcregs.h	2017-12-20 04:05:01.000000000 -0500
@@ -374,12 +374,6 @@ static inline int is_isa_arcompact(void)
 	return IS_ENABLED(CONFIG_ISA_ARCOMPACT);
 }
 
-#if defined(CONFIG_ISA_ARCOMPACT) && !defined(_CPU_DEFAULT_A7)
-#error "Toolchain not configured for ARCompact builds"
-#elif defined(CONFIG_ISA_ARCV2) && !defined(_CPU_DEFAULT_HS)
-#error "Toolchain not configured for ARCv2 builds"
-#endif
-
 #endif /* __ASEMBLY__ */
 
 #endif /* _ASM_ARC_ARCREGS_H */
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arc/include/asm/bitops.h linux-libre-4.4.107-gnu/arch/arc/include/asm/bitops.h
--- linux-libre-4.4-gnu/arch/arc/include/asm/bitops.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arc/include/asm/bitops.h	2017-12-20 04:05:01.000000000 -0500
@@ -35,21 +35,6 @@ static inline void op##_bit(unsigned lon
 									\
 	m += nr >> 5;							\
 									\
-	/*								\
-	 * ARC ISA micro-optimization:					\
-	 *								\
-	 * Instructions dealing with bitpos only consider lower 5 bits	\
-	 * e.g (x << 33) is handled like (x << 1) by ASL instruction	\
-	 *  (mem pointer still needs adjustment to point to next word)	\
-	 *								\
-	 * Hence the masking to clamp @nr arg can be elided in general.	\
-	 *								\
-	 * However if @nr is a constant (above assumed in a register),	\
-	 * and greater than 31, gcc can optimize away (x << 33) to 0,	\
-	 * as overflow, given the 32-bit ISA. Thus masking needs to be	\
-	 * done for const @nr, but no code is generated due to gcc	\
-	 * const prop.							\
-	 */								\
 	nr &= 0x1f;							\
 									\
 	__asm__ __volatile__(						\
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arc/include/asm/cacheflush.h linux-libre-4.4.107-gnu/arch/arc/include/asm/cacheflush.h
--- linux-libre-4.4-gnu/arch/arc/include/asm/cacheflush.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arc/include/asm/cacheflush.h	2017-12-20 04:05:01.000000000 -0500
@@ -85,6 +85,10 @@ void flush_anon_page(struct vm_area_stru
  */
 #define PG_dc_clean	PG_arch_1
 
+#define CACHE_COLORS_NUM	4
+#define CACHE_COLORS_MSK	(CACHE_COLORS_NUM - 1)
+#define CACHE_COLOR(addr)	(((unsigned long)(addr) >> (PAGE_SHIFT)) & CACHE_COLORS_MSK)
+
 /*
  * Simple wrapper over config option
  * Bootup code ensures that hardware matches kernel configuration
@@ -94,8 +98,6 @@ static inline int cache_is_vipt_aliasing
 	return IS_ENABLED(CONFIG_ARC_CACHE_VIPT_ALIASING);
 }
 
-#define CACHE_COLOR(addr)	(((unsigned long)(addr) >> (PAGE_SHIFT)) & 1)
-
 /*
  * checks if two addresses (after page aligning) index into same cache set
  */
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arc/include/asm/cache.h linux-libre-4.4.107-gnu/arch/arc/include/asm/cache.h
--- linux-libre-4.4-gnu/arch/arc/include/asm/cache.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arc/include/asm/cache.h	2017-12-20 04:05:01.000000000 -0500
@@ -88,7 +88,9 @@ extern int ioc_exists;
 #define ARC_REG_SLC_FLUSH	0x904
 #define ARC_REG_SLC_INVALIDATE	0x905
 #define ARC_REG_SLC_RGN_START	0x914
+#define ARC_REG_SLC_RGN_START1	0x915
 #define ARC_REG_SLC_RGN_END	0x916
+#define ARC_REG_SLC_RGN_END1	0x917
 
 /* Bit val in SLC_CONTROL */
 #define SLC_CTRL_IM		0x040
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arc/include/asm/delay.h linux-libre-4.4.107-gnu/arch/arc/include/asm/delay.h
--- linux-libre-4.4-gnu/arch/arc/include/asm/delay.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arc/include/asm/delay.h	2017-12-20 04:05:01.000000000 -0500
@@ -22,10 +22,13 @@
 static inline void __delay(unsigned long loops)
 {
 	__asm__ __volatile__(
-	"	lp  1f	\n"
-	"	nop	\n"
-	"1:		\n"
-	: "+l"(loops));
+	"	mov lp_count, %0	\n"
+	"	lp  1f			\n"
+	"	nop			\n"
+	"1:				\n"
+	:
+        : "r"(loops)
+        : "lp_count");
 }
 
 extern void __bad_udelay(void);
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arc/include/asm/entry-arcv2.h linux-libre-4.4.107-gnu/arch/arc/include/asm/entry-arcv2.h
--- linux-libre-4.4-gnu/arch/arc/include/asm/entry-arcv2.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arc/include/asm/entry-arcv2.h	2017-12-20 04:05:01.000000000 -0500
@@ -16,6 +16,7 @@
 	;
 	; Now manually save: r12, sp, fp, gp, r25
 
+	PUSH	r30
 	PUSH	r12
 
 	; Saving pt_regs->sp correctly requires some extra work due to the way
@@ -72,6 +73,7 @@
 	POPAX	AUX_USER_SP
 1:
 	POP	r12
+	POP	r30
 
 .endm
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arc/include/asm/entry.h linux-libre-4.4.107-gnu/arch/arc/include/asm/entry.h
--- linux-libre-4.4-gnu/arch/arc/include/asm/entry.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arc/include/asm/entry.h	2017-12-20 04:05:01.000000000 -0500
@@ -142,7 +142,7 @@
 
 #ifdef CONFIG_ARC_CURR_IN_REG
 	; Retrieve orig r25 and save it with rest of callee_regs
-	ld.as   r12, [r12, PT_user_r25]
+	ld	r12, [r12, PT_user_r25]
 	PUSH	r12
 #else
 	PUSH	r25
@@ -198,7 +198,7 @@
 
 	; SP is back to start of pt_regs
 #ifdef CONFIG_ARC_CURR_IN_REG
-	st.as   r12, [sp, PT_user_r25]
+	st	r12, [sp, PT_user_r25]
 #endif
 .endm
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arc/include/asm/io.h linux-libre-4.4.107-gnu/arch/arc/include/asm/io.h
--- linux-libre-4.4-gnu/arch/arc/include/asm/io.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arc/include/asm/io.h	2017-12-20 04:05:01.000000000 -0500
@@ -13,6 +13,15 @@
 #include <asm/byteorder.h>
 #include <asm/page.h>
 
+#ifdef CONFIG_ISA_ARCV2
+#include <asm/barrier.h>
+#define __iormb()		rmb()
+#define __iowmb()		wmb()
+#else
+#define __iormb()		do { } while (0)
+#define __iowmb()		do { } while (0)
+#endif
+
 extern void __iomem *ioremap(unsigned long physaddr, unsigned long size);
 extern void __iomem *ioremap_prot(phys_addr_t offset, unsigned long size,
 				  unsigned long flags);
@@ -22,6 +31,15 @@ extern void iounmap(const void __iomem *
 #define ioremap_wc(phy, sz)		ioremap(phy, sz)
 #define ioremap_wt(phy, sz)		ioremap(phy, sz)
 
+/*
+ * io{read,write}{16,32}be() macros
+ */
+#define ioread16be(p)		({ u16 __v = be16_to_cpu((__force __be16)__raw_readw(p)); __iormb(); __v; })
+#define ioread32be(p)		({ u32 __v = be32_to_cpu((__force __be32)__raw_readl(p)); __iormb(); __v; })
+
+#define iowrite16be(v,p)	({ __iowmb(); __raw_writew((__force u16)cpu_to_be16(v), p); })
+#define iowrite32be(v,p)	({ __iowmb(); __raw_writel((__force u32)cpu_to_be32(v), p); })
+
 /* Change struct page to physical address */
 #define page_to_phys(page)		(page_to_pfn(page) << PAGE_SHIFT)
 
@@ -99,15 +117,6 @@ static inline void __raw_writel(u32 w, v
 
 }
 
-#ifdef CONFIG_ISA_ARCV2
-#include <asm/barrier.h>
-#define __iormb()		rmb()
-#define __iowmb()		wmb()
-#else
-#define __iormb()		do { } while (0)
-#define __iowmb()		do { } while (0)
-#endif
-
 /*
  * MMIO can also get buffered/optimized in micro-arch, so barriers needed
  * Based on ARM model for the typical use case
@@ -129,15 +138,23 @@ static inline void __raw_writel(u32 w, v
 #define writel(v,c)		({ __iowmb(); writel_relaxed(v,c); })
 
 /*
- * Relaxed API for drivers which can handle any ordering themselves
+ * Relaxed API for drivers which can handle barrier ordering themselves
+ *
+ * Also these are defined to perform little endian accesses.
+ * To provide the typical device register semantics of fixed endian,
+ * swap the byte order for Big Endian
+ *
+ * http://lkml.kernel.org/r/201603100845.30602.arnd@arndb.de
  */
 #define readb_relaxed(c)	__raw_readb(c)
-#define readw_relaxed(c)	__raw_readw(c)
-#define readl_relaxed(c)	__raw_readl(c)
+#define readw_relaxed(c) ({ u16 __r = le16_to_cpu((__force __le16) \
+					__raw_readw(c)); __r; })
+#define readl_relaxed(c) ({ u32 __r = le32_to_cpu((__force __le32) \
+					__raw_readl(c)); __r; })
 
 #define writeb_relaxed(v,c)	__raw_writeb(v,c)
-#define writew_relaxed(v,c)	__raw_writew(v,c)
-#define writel_relaxed(v,c)	__raw_writel(v,c)
+#define writew_relaxed(v,c)	__raw_writew((__force u16) cpu_to_le16(v),c)
+#define writel_relaxed(v,c)	__raw_writel((__force u32) cpu_to_le32(v),c)
 
 #include <asm-generic/io.h>
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arc/include/asm/irqflags-arcv2.h linux-libre-4.4.107-gnu/arch/arc/include/asm/irqflags-arcv2.h
--- linux-libre-4.4-gnu/arch/arc/include/asm/irqflags-arcv2.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arc/include/asm/irqflags-arcv2.h	2017-12-20 04:05:01.000000000 -0500
@@ -22,6 +22,7 @@
 #define AUX_IRQ_CTRL		0x00E
 #define AUX_IRQ_ACT		0x043	/* Active Intr across all levels */
 #define AUX_IRQ_LVL_PEND	0x200	/* Pending Intr across all levels */
+#define AUX_IRQ_HINT		0x201	/* For generating Soft Interrupts */
 #define AUX_IRQ_PRIORITY	0x206
 #define ICAUSE			0x40a
 #define AUX_IRQ_SELECT		0x40b
@@ -112,6 +113,16 @@ static inline int arch_irqs_disabled(voi
 	return arch_irqs_disabled_flags(arch_local_save_flags());
 }
 
+static inline void arc_softirq_trigger(int irq)
+{
+	write_aux_reg(AUX_IRQ_HINT, irq);
+}
+
+static inline void arc_softirq_clear(int irq)
+{
+	write_aux_reg(AUX_IRQ_HINT, 0);
+}
+
 #else
 
 .macro IRQ_DISABLE  scratch
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arc/include/asm/irqflags-compact.h linux-libre-4.4.107-gnu/arch/arc/include/asm/irqflags-compact.h
--- linux-libre-4.4-gnu/arch/arc/include/asm/irqflags-compact.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arc/include/asm/irqflags-compact.h	2017-12-20 04:05:01.000000000 -0500
@@ -188,10 +188,10 @@ static inline int arch_irqs_disabled(voi
 .endm
 
 .macro IRQ_ENABLE  scratch
+	TRACE_ASM_IRQ_ENABLE
 	lr	\scratch, [status32]
 	or	\scratch, \scratch, (STATUS_E1_MASK | STATUS_E2_MASK)
 	flag	\scratch
-	TRACE_ASM_IRQ_ENABLE
 .endm
 
 #endif	/* __ASSEMBLY__ */
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arc/include/asm/pgtable.h linux-libre-4.4.107-gnu/arch/arc/include/asm/pgtable.h
--- linux-libre-4.4-gnu/arch/arc/include/asm/pgtable.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arc/include/asm/pgtable.h	2017-12-20 04:05:01.000000000 -0500
@@ -110,7 +110,7 @@
 #define ___DEF (_PAGE_PRESENT | _PAGE_CACHEABLE)
 
 /* Set of bits not changed in pte_modify */
-#define _PAGE_CHG_MASK	(PAGE_MASK | _PAGE_ACCESSED | _PAGE_DIRTY)
+#define _PAGE_CHG_MASK	(PAGE_MASK | _PAGE_ACCESSED | _PAGE_DIRTY | _PAGE_SPECIAL)
 
 /* More Abbrevaited helpers */
 #define PAGE_U_NONE     __pgprot(___DEF)
@@ -277,8 +277,7 @@ static inline void pmd_set(pmd_t *pmdp,
 
 #define mk_pte(page, prot)	pfn_pte(page_to_pfn(page), prot)
 #define pte_pfn(pte)		(pte_val(pte) >> PAGE_SHIFT)
-#define pfn_pte(pfn, prot)	(__pte(((pte_t)(pfn) << PAGE_SHIFT) | \
-				 pgprot_val(prot)))
+#define pfn_pte(pfn, prot)	(__pte(((pfn) << PAGE_SHIFT) | pgprot_val(prot)))
 #define __pte_index(addr)	(((addr) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1))
 
 /*
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arc/include/asm/ptrace.h linux-libre-4.4.107-gnu/arch/arc/include/asm/ptrace.h
--- linux-libre-4.4-gnu/arch/arc/include/asm/ptrace.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arc/include/asm/ptrace.h	2017-12-20 04:05:01.000000000 -0500
@@ -84,7 +84,7 @@ struct pt_regs {
 	unsigned long fp;
 	unsigned long sp;	/* user/kernel sp depending on where we came from  */
 
-	unsigned long r12;
+	unsigned long r12, r30;
 
 	/*------- Below list auto saved by h/w -----------*/
 	unsigned long r0, r1, r2, r3, r4, r5, r6, r7, r8, r9, r10, r11;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arc/include/asm/uaccess.h linux-libre-4.4.107-gnu/arch/arc/include/asm/uaccess.h
--- linux-libre-4.4-gnu/arch/arc/include/asm/uaccess.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arc/include/asm/uaccess.h	2017-12-20 04:05:01.000000000 -0500
@@ -83,7 +83,10 @@
 	"2:	;nop\n"				\
 	"	.section .fixup, \"ax\"\n"	\
 	"	.align 4\n"			\
-	"3:	mov %0, %3\n"			\
+	"3:	# return -EFAULT\n"		\
+	"	mov %0, %3\n"			\
+	"	# zero out dst ptr\n"		\
+	"	mov %1,  0\n"			\
 	"	j   2b\n"			\
 	"	.previous\n"			\
 	"	.section __ex_table, \"a\"\n"	\
@@ -101,7 +104,11 @@
 	"2:	;nop\n"				\
 	"	.section .fixup, \"ax\"\n"	\
 	"	.align 4\n"			\
-	"3:	mov %0, %3\n"			\
+	"3:	# return -EFAULT\n"		\
+	"	mov %0, %3\n"			\
+	"	# zero out dst ptr\n"		\
+	"	mov %1,  0\n"			\
+	"	mov %R1, 0\n"			\
 	"	j   2b\n"			\
 	"	.previous\n"			\
 	"	.section __ex_table, \"a\"\n"	\
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arc/Kconfig linux-libre-4.4.107-gnu/arch/arc/Kconfig
--- linux-libre-4.4-gnu/arch/arc/Kconfig	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arc/Kconfig	2017-12-20 04:05:01.000000000 -0500
@@ -387,7 +387,7 @@ config ARC_HAS_LLSC
 
 config ARC_STAR_9000923308
 	bool "Workaround for llock/scond livelock"
-	default y
+	default n
 	depends on ISA_ARCV2 && SMP && ARC_HAS_LLSC
 
 config ARC_HAS_SWAPE
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arc/kernel/entry-arcv2.S linux-libre-4.4.107-gnu/arch/arc/kernel/entry-arcv2.S
--- linux-libre-4.4-gnu/arch/arc/kernel/entry-arcv2.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arc/kernel/entry-arcv2.S	2017-12-20 04:05:01.000000000 -0500
@@ -45,11 +45,12 @@ VECTOR	reserved		; Reserved slots
 VECTOR	handle_interrupt	; (16) Timer0
 VECTOR	handle_interrupt	; unused (Timer1)
 VECTOR	handle_interrupt	; unused (WDT)
-VECTOR	handle_interrupt	; (19) ICI (inter core interrupt)
-VECTOR	handle_interrupt
-VECTOR	handle_interrupt
-VECTOR	handle_interrupt
-VECTOR	handle_interrupt	; (23) End of fixed IRQs
+VECTOR	handle_interrupt	; (19) Inter core Interrupt (IPI)
+VECTOR	handle_interrupt	; (20) perf Interrupt
+VECTOR	handle_interrupt	; (21) Software Triggered Intr (Self IPI)
+VECTOR	handle_interrupt	; unused
+VECTOR	handle_interrupt	; (23) unused
+# End of fixed IRQs
 
 .rept CONFIG_ARC_NUMBER_OF_INTERRUPTS - 8
 	VECTOR	handle_interrupt
@@ -211,7 +212,11 @@ debug_marker_syscall:
 ; (since IRQ NOT allowed in DS in ARCv2, this can only happen if orig
 ; entry was via Exception in DS which got preempted in kernel).
 ;
-; IRQ RTIE won't reliably restore DE bit and/or BTA, needs handling
+; IRQ RTIE won't reliably restore DE bit and/or BTA, needs workaround
+;
+; Solution is return from Intr w/o any delay slot quirks into a kernel trampoline
+; and from pure kernel mode return to delay slot which handles DS bit/BTA correctly
+
 .Lintr_ret_to_delay_slot:
 debug_marker_ds:
 
@@ -222,18 +227,23 @@ debug_marker_ds:
 	ld	r2, [sp, PT_ret]
 	ld	r3, [sp, PT_status32]
 
+	; STAT32 for Int return created from scratch
+	; (No delay dlot, disable Further intr in trampoline)
+
 	bic  	r0, r3, STATUS_U_MASK|STATUS_DE_MASK|STATUS_IE_MASK|STATUS_L_MASK
 	st	r0, [sp, PT_status32]
 
 	mov	r1, .Lintr_ret_to_delay_slot_2
 	st	r1, [sp, PT_ret]
 
+	; Orig exception PC/STAT32 safekept @orig_r0 and @event stack slots
 	st	r2, [sp, 0]
 	st	r3, [sp, 4]
 
 	b	.Lisr_ret_fast_path
 
 .Lintr_ret_to_delay_slot_2:
+	; Trampoline to restore orig exception PC/STAT32/BTA/AUX_USER_SP
 	sub	sp, sp, SZ_PT_REGS
 	st	r9, [sp, -4]
 
@@ -243,11 +253,19 @@ debug_marker_ds:
 	ld	r9, [sp, 4]
 	sr	r9, [erstatus]
 
+	; restore AUX_USER_SP if returning to U mode
+	bbit0	r9, STATUS_U_BIT, 1f
+	ld	r9, [sp, PT_sp]
+	sr	r9, [AUX_USER_SP]
+
+1:
 	ld	r9, [sp, 8]
 	sr	r9, [erbta]
 
 	ld	r9, [sp, -4]
 	add	sp, sp, SZ_PT_REGS
+
+	; return from pure kernel mode to delay slot
 	rtie
 
 END(ret_from_exception)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arc/kernel/entry.S linux-libre-4.4.107-gnu/arch/arc/kernel/entry.S
--- linux-libre-4.4-gnu/arch/arc/kernel/entry.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arc/kernel/entry.S	2017-12-20 04:05:01.000000000 -0500
@@ -104,6 +104,12 @@ ENTRY(EV_MachineCheck)
 	lr  r0, [efa]
 	mov r1, sp
 
+	; hardware auto-disables MMU, re-enable it to allow kernel vaddr
+	; access for say stack unwinding of modules for crash dumps
+	lr	r3, [ARC_REG_PID]
+	or	r3, r3, MMU_ENABLE
+	sr	r3, [ARC_REG_PID]
+
 	lsr  	r3, r2, 8
 	bmsk 	r3, r3, 7
 	brne    r3, ECR_C_MCHK_DUP_TLB, 1f
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arc/kernel/mcip.c linux-libre-4.4.107-gnu/arch/arc/kernel/mcip.c
--- linux-libre-4.4-gnu/arch/arc/kernel/mcip.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arc/kernel/mcip.c	2017-12-20 04:05:01.000000000 -0500
@@ -11,9 +11,12 @@
 #include <linux/smp.h>
 #include <linux/irq.h>
 #include <linux/spinlock.h>
+#include <asm/irqflags-arcv2.h>
 #include <asm/mcip.h>
 #include <asm/setup.h>
 
+#define SOFTIRQ_IRQ	21
+
 static char smp_cpuinfo_buf[128];
 static int idu_detected;
 
@@ -22,6 +25,7 @@ static DEFINE_RAW_SPINLOCK(mcip_lock);
 static void mcip_setup_per_cpu(int cpu)
 {
 	smp_ipi_irq_setup(cpu, IPI_IRQ);
+	smp_ipi_irq_setup(cpu, SOFTIRQ_IRQ);
 }
 
 static void mcip_ipi_send(int cpu)
@@ -29,6 +33,12 @@ static void mcip_ipi_send(int cpu)
 	unsigned long flags;
 	int ipi_was_pending;
 
+	/* ARConnect can only send IPI to others */
+	if (unlikely(cpu == raw_smp_processor_id())) {
+		arc_softirq_trigger(SOFTIRQ_IRQ);
+		return;
+	}
+
 	/*
 	 * NOTE: We must spin here if the other cpu hasn't yet
 	 * serviced a previous message. This can burn lots
@@ -63,6 +73,11 @@ static void mcip_ipi_clear(int irq)
 	unsigned long flags;
 	unsigned int __maybe_unused copy;
 
+	if (unlikely(irq == SOFTIRQ_IRQ)) {
+		arc_softirq_clear(irq);
+		return;
+	}
+
 	raw_spin_lock_irqsave(&mcip_lock, flags);
 
 	/* Who sent the IPI */
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arc/kernel/setup.c linux-libre-4.4.107-gnu/arch/arc/kernel/setup.c
--- linux-libre-4.4-gnu/arch/arc/kernel/setup.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arc/kernel/setup.c	2017-12-20 04:05:01.000000000 -0500
@@ -332,10 +332,6 @@ static void arc_chk_core_config(void)
 		pr_warn("CONFIG_ARC_FPU_SAVE_RESTORE needed for working apps\n");
 	else if (!cpu->extn.fpu_dp && fpu_enabled)
 		panic("FPU non-existent, disable CONFIG_ARC_FPU_SAVE_RESTORE\n");
-
-	if (is_isa_arcv2() && IS_ENABLED(CONFIG_SMP) && cpu->isa.atomic &&
-	    !IS_ENABLED(CONFIG_ARC_STAR_9000923308))
-		panic("llock/scond livelock workaround missing\n");
 }
 
 /*
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arc/kernel/signal.c linux-libre-4.4.107-gnu/arch/arc/kernel/signal.c
--- linux-libre-4.4-gnu/arch/arc/kernel/signal.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arc/kernel/signal.c	2017-12-20 04:05:01.000000000 -0500
@@ -107,13 +107,13 @@ static int restore_usr_regs(struct pt_re
 	struct user_regs_struct uregs;
 
 	err = __copy_from_user(&set, &sf->uc.uc_sigmask, sizeof(set));
-	if (!err)
-		set_current_blocked(&set);
-
 	err |= __copy_from_user(&uregs.scratch,
 				&(sf->uc.uc_mcontext.regs.scratch),
 				sizeof(sf->uc.uc_mcontext.regs.scratch));
+	if (err)
+		return err;
 
+	set_current_blocked(&set);
 	regs->bta	= uregs.scratch.bta;
 	regs->lp_start	= uregs.scratch.lp_start;
 	regs->lp_end	= uregs.scratch.lp_end;
@@ -138,7 +138,7 @@ static int restore_usr_regs(struct pt_re
 	regs->r0	= uregs.scratch.r0;
 	regs->sp	= uregs.scratch.sp;
 
-	return err;
+	return 0;
 }
 
 static inline int is_do_ss_needed(unsigned int magic)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arc/kernel/stacktrace.c linux-libre-4.4.107-gnu/arch/arc/kernel/stacktrace.c
--- linux-libre-4.4-gnu/arch/arc/kernel/stacktrace.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arc/kernel/stacktrace.c	2017-12-20 04:05:01.000000000 -0500
@@ -142,7 +142,7 @@ arc_unwind_core(struct task_struct *tsk,
 	 * prelogue is setup (callee regs saved and then fp set and not other
 	 * way around
 	 */
-	pr_warn("CONFIG_ARC_DW2_UNWIND needs to be enabled\n");
+	pr_warn_once("CONFIG_ARC_DW2_UNWIND needs to be enabled\n");
 	return 0;
 
 #endif
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arc/kernel/time.c linux-libre-4.4.107-gnu/arch/arc/kernel/time.c
--- linux-libre-4.4-gnu/arch/arc/kernel/time.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arc/kernel/time.c	2017-12-20 04:05:01.000000000 -0500
@@ -130,14 +130,17 @@ static cycle_t arc_counter_read(struct c
 		cycle_t  full;
 	} stamp;
 
-
-	__asm__ __volatile(
-	"1:						\n"
-	"	lr		%0, [AUX_RTC_LOW]	\n"
-	"	lr		%1, [AUX_RTC_HIGH]	\n"
-	"	lr		%2, [AUX_RTC_CTRL]	\n"
-	"	bbit0.nt	%2, 31, 1b		\n"
-	: "=r" (stamp.low), "=r" (stamp.high), "=r" (status));
+	/*
+	 * hardware has an internal state machine which tracks readout of
+	 * low/high and updates the CTRL.status if
+	 *  - interrupt/exception taken between the two reads
+	 *  - high increments after low has been read
+	 */
+	do {
+		stamp.low = read_aux_reg(AUX_RTC_LOW);
+		stamp.high = read_aux_reg(AUX_RTC_HIGH);
+		status = read_aux_reg(AUX_RTC_CTRL);
+	} while (!(status & _BITUL(31)));
 
 	return stamp.full;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arc/kernel/unaligned.c linux-libre-4.4.107-gnu/arch/arc/kernel/unaligned.c
--- linux-libre-4.4-gnu/arch/arc/kernel/unaligned.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arc/kernel/unaligned.c	2017-12-20 04:05:01.000000000 -0500
@@ -241,8 +241,9 @@ int misaligned_fixup(unsigned long addre
 	if (state.fault)
 		goto fault;
 
+	/* clear any remanants of delay slot */
 	if (delay_mode(regs)) {
-		regs->ret = regs->bta;
+		regs->ret = regs->bta & ~1U;
 		regs->status32 &= ~STATUS_DE_MASK;
 	} else {
 		regs->ret += state.instr_len;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arc/Makefile linux-libre-4.4.107-gnu/arch/arc/Makefile
--- linux-libre-4.4-gnu/arch/arc/Makefile	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arc/Makefile	2017-12-20 04:05:01.000000000 -0500
@@ -18,6 +18,20 @@ cflags-y	+= -fno-common -pipe -fno-built
 cflags-$(CONFIG_ISA_ARCOMPACT)	+= -mA7
 cflags-$(CONFIG_ISA_ARCV2)	+= -mcpu=archs
 
+is_700 = $(shell $(CC) -dM -E - < /dev/null | grep -q "ARC700" && echo 1 || echo 0)
+
+ifdef CONFIG_ISA_ARCOMPACT
+ifeq ($(is_700), 0)
+    $(error Toolchain not configured for ARCompact builds)
+endif
+endif
+
+ifdef CONFIG_ISA_ARCV2
+ifeq ($(is_700), 1)
+    $(error Toolchain not configured for ARCv2 builds)
+endif
+endif
+
 ifdef CONFIG_ARC_CURR_IN_REG
 # For a global register defintion, make sure it gets passed to every file
 # We had a customer reported bug where some code built in kernel was NOT using
@@ -48,8 +62,6 @@ endif
 
 endif
 
-cflags-$(CONFIG_ARC_DW2_UNWIND)		+= -fasynchronous-unwind-tables
-
 # By default gcc 4.8 generates dwarf4 which kernel unwinder can't grok
 ifeq ($(atleast_gcc48),y)
 cflags-$(CONFIG_ARC_DW2_UNWIND)		+= -gdwarf-2
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arc/mm/cache.c linux-libre-4.4.107-gnu/arch/arc/mm/cache.c
--- linux-libre-4.4-gnu/arch/arc/mm/cache.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arc/mm/cache.c	2017-12-20 04:05:01.000000000 -0500
@@ -543,6 +543,7 @@ noinline void slc_op(phys_addr_t paddr,
 	static DEFINE_SPINLOCK(lock);
 	unsigned long flags;
 	unsigned int ctrl;
+	phys_addr_t end;
 
 	spin_lock_irqsave(&lock, flags);
 
@@ -572,8 +573,16 @@ noinline void slc_op(phys_addr_t paddr,
 	 * END needs to be setup before START (latter triggers the operation)
 	 * END can't be same as START, so add (l2_line_sz - 1) to sz
 	 */
-	write_aux_reg(ARC_REG_SLC_RGN_END, (paddr + sz + l2_line_sz - 1));
-	write_aux_reg(ARC_REG_SLC_RGN_START, paddr);
+	end = paddr + sz + l2_line_sz - 1;
+	if (is_pae40_enabled())
+		write_aux_reg(ARC_REG_SLC_RGN_END1, upper_32_bits(end));
+
+	write_aux_reg(ARC_REG_SLC_RGN_END, lower_32_bits(end));
+
+	if (is_pae40_enabled())
+		write_aux_reg(ARC_REG_SLC_RGN_START1, upper_32_bits(paddr));
+
+	write_aux_reg(ARC_REG_SLC_RGN_START, lower_32_bits(paddr));
 
 	while (read_aux_reg(ARC_REG_SLC_CTRL) & SLC_CTRL_BUSY);
 
@@ -914,6 +923,15 @@ void arc_cache_init(void)
 
 	printk(arc_cache_mumbojumbo(0, str, sizeof(str)));
 
+	/*
+	 * Only master CPU needs to execute rest of function:
+	 *  - Assume SMP so all cores will have same cache config so
+	 *    any geomtry checks will be same for all
+	 *  - IOC setup / dma callbacks only need to be setup once
+	 */
+	if (cpu)
+		return;
+
 	if (IS_ENABLED(CONFIG_ARC_HAS_ICACHE)) {
 		struct cpuinfo_arc_cache *ic = &cpuinfo_arc700[cpu].icache;
 
@@ -951,11 +969,16 @@ void arc_cache_init(void)
 		/* check for D-Cache aliasing on ARCompact: ARCv2 has PIPT */
 		if (is_isa_arcompact()) {
 			int handled = IS_ENABLED(CONFIG_ARC_CACHE_VIPT_ALIASING);
+			int num_colors = dc->sz_k/dc->assoc/TO_KB(PAGE_SIZE);
 
-			if (dc->alias && !handled)
-				panic("Enable CONFIG_ARC_CACHE_VIPT_ALIASING\n");
-			else if (!dc->alias && handled)
+			if (dc->alias) {
+				if (!handled)
+					panic("Enable CONFIG_ARC_CACHE_VIPT_ALIASING\n");
+				if (CACHE_COLORS_NUM != num_colors)
+					panic("CACHE_COLORS_NUM not optimized for config\n");
+			} else if (!dc->alias && handled) {
 				panic("Disable CONFIG_ARC_CACHE_VIPT_ALIASING\n");
+			}
 		}
 	}
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arc/mm/mmap.c linux-libre-4.4.107-gnu/arch/arc/mm/mmap.c
--- linux-libre-4.4-gnu/arch/arc/mm/mmap.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arc/mm/mmap.c	2017-12-20 04:05:01.000000000 -0500
@@ -64,7 +64,7 @@ arch_get_unmapped_area(struct file *filp
 
 		vma = find_vma(mm, addr);
 		if (TASK_SIZE - len >= addr &&
-		    (!vma || addr + len <= vma->vm_start))
+		    (!vma || addr + len <= vm_start_gap(vma)))
 			return addr;
 	}
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arc/mm/tlb.c linux-libre-4.4.107-gnu/arch/arc/mm/tlb.c
--- linux-libre-4.4-gnu/arch/arc/mm/tlb.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arc/mm/tlb.c	2017-12-20 04:05:01.000000000 -0500
@@ -885,9 +885,6 @@ void do_tlb_overlap_fault(unsigned long
 
 	local_irq_save(flags);
 
-	/* re-enable the MMU */
-	write_aux_reg(ARC_REG_PID, MMU_ENABLE | read_aux_reg(ARC_REG_PID));
-
 	/* loop thru all sets of TLB */
 	for (set = 0; set < mmu->sets; set++) {
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/compressed/head.S linux-libre-4.4.107-gnu/arch/arm/boot/compressed/head.S
--- linux-libre-4.4-gnu/arch/arm/boot/compressed/head.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/boot/compressed/head.S	2017-12-20 04:05:01.000000000 -0500
@@ -776,7 +776,7 @@ __armv7_mmu_cache_on:
 		orrne	r0, r0, #1		@ MMU enabled
 		movne	r1, #0xfffffffd		@ domain 0 = client
 		bic     r6, r6, #1 << 31        @ 32-bit translation system
-		bic     r6, r6, #3 << 0         @ use only ttbr0
+		bic     r6, r6, #(7 << 0) | (1 << 4)	@ use only ttbr0
 		mcrne	p15, 0, r3, c2, c0, 0	@ load page table pointer
 		mcrne	p15, 0, r1, c3, c0, 0	@ load domain access control
 		mcrne   p15, 0, r6, c2, c0, 2   @ load ttb control
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/am33xx.dtsi linux-libre-4.4.107-gnu/arch/arm/boot/dts/am33xx.dtsi
--- linux-libre-4.4-gnu/arch/arm/boot/dts/am33xx.dtsi	2016-01-10 21:16:10.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/boot/dts/am33xx.dtsi	2017-12-20 11:45:53.000000000 -0500
@@ -142,10 +142,11 @@
 				};
 
 				scm_conf: scm_conf@0 {
-					compatible = "syscon";
+					compatible = "syscon", "simple-bus";
 					reg = <0x0 0x800>;
 					#address-cells = <1>;
 					#size-cells = <1>;
+					ranges = <0 0 0x800>;
 
 					scm_clocks: clocks {
 						#address-cells = <1>;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/am43x-epos-evm.dts linux-libre-4.4.107-gnu/arch/arm/boot/dts/am43x-epos-evm.dts
--- linux-libre-4.4-gnu/arch/arm/boot/dts/am43x-epos-evm.dts	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/boot/dts/am43x-epos-evm.dts	2017-12-20 04:05:01.000000000 -0500
@@ -792,3 +792,8 @@
 	tx-num-evt = <32>;
 	rx-num-evt = <32>;
 };
+
+&synctimer_32kclk {
+	assigned-clocks = <&mux_synctimer32k_ck>;
+	assigned-clock-parents = <&clkdiv32k_ick>;
+};
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/armada-375.dtsi linux-libre-4.4.107-gnu/arch/arm/boot/dts/armada-375.dtsi
--- linux-libre-4.4-gnu/arch/arm/boot/dts/armada-375.dtsi	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/boot/dts/armada-375.dtsi	2017-12-20 04:05:01.000000000 -0500
@@ -176,9 +176,9 @@
 				reg = <0x8000 0x1000>;
 				cache-unified;
 				cache-level = <2>;
-				arm,double-linefill-incr = <1>;
+				arm,double-linefill-incr = <0>;
 				arm,double-linefill-wrap = <0>;
-				arm,double-linefill = <1>;
+				arm,double-linefill = <0>;
 				prefetch-data = <1>;
 			};
 
@@ -529,7 +529,7 @@
 			};
 
 			sata@a0000 {
-				compatible = "marvell,orion-sata";
+				compatible = "marvell,armada-370-sata";
 				reg = <0xa0000 0x5000>;
 				interrupts = <GIC_SPI 26 IRQ_TYPE_LEVEL_HIGH>;
 				clocks = <&gateclk 14>, <&gateclk 20>;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/armada-385-linksys.dtsi linux-libre-4.4.107-gnu/arch/arm/boot/dts/armada-385-linksys.dtsi
--- linux-libre-4.4-gnu/arch/arm/boot/dts/armada-385-linksys.dtsi	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/boot/dts/armada-385-linksys.dtsi	2017-12-20 04:05:01.000000000 -0500
@@ -58,8 +58,8 @@
 	soc {
 		ranges = <MBUS_ID(0xf0, 0x01) 0 0xf1000000 0x100000
 			  MBUS_ID(0x01, 0x1d) 0 0xfff00000 0x100000
-			  MBUS_ID(0x09, 0x09) 0 0xf1100000 0x10000
-			  MBUS_ID(0x09, 0x05) 0 0xf1110000 0x10000>;
+			  MBUS_ID(0x09, 0x19) 0 0xf1100000 0x10000
+			  MBUS_ID(0x09, 0x15) 0 0xf1110000 0x10000>;
 
 		internal-regs {
 
@@ -117,7 +117,7 @@
 			};
 
 			/* USB part of the eSATA/USB 2.0 port */
-			usb@50000 {
+			usb@58000 {
 				status = "okay";
 			};
 
@@ -245,7 +245,7 @@
 		button@2 {
 			label = "Factory Reset Button";
 			linux,code = <KEY_RESTART>;
-			gpios = <&gpio1 15 GPIO_ACTIVE_LOW>;
+			gpios = <&gpio0 29 GPIO_ACTIVE_LOW>;
 		};
 	};
 
@@ -260,7 +260,7 @@
 		};
 
 		sata {
-			gpios = <&gpio1 22 GPIO_ACTIVE_HIGH>;
+			gpios = <&gpio1 22 GPIO_ACTIVE_LOW>;
 			default-state = "off";
 		};
 	};
@@ -313,7 +313,7 @@
 
 &pinctrl {
 	keys_pin: keys-pin {
-		marvell,pins = "mpp24", "mpp47";
+		marvell,pins = "mpp24", "mpp29";
 		marvell,function = "gpio";
 	};
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/armada-388-gp.dts linux-libre-4.4.107-gnu/arch/arm/boot/dts/armada-388-gp.dts
--- linux-libre-4.4-gnu/arch/arm/boot/dts/armada-388-gp.dts	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/boot/dts/armada-388-gp.dts	2017-12-20 04:05:01.000000000 -0500
@@ -89,7 +89,7 @@
 					pinctrl-names = "default";
 					pinctrl-0 = <&pca0_pins>;
 					interrupt-parent = <&gpio0>;
-					interrupts = <18 IRQ_TYPE_EDGE_FALLING>;
+					interrupts = <18 IRQ_TYPE_LEVEL_LOW>;
 					gpio-controller;
 					#gpio-cells = <2>;
 					interrupt-controller;
@@ -101,7 +101,7 @@
 					compatible = "nxp,pca9555";
 					pinctrl-names = "default";
 					interrupt-parent = <&gpio0>;
-					interrupts = <18 IRQ_TYPE_EDGE_FALLING>;
+					interrupts = <18 IRQ_TYPE_LEVEL_LOW>;
 					gpio-controller;
 					#gpio-cells = <2>;
 					interrupt-controller;
@@ -294,16 +294,6 @@
 	};
 
 	reg_usb2_1_vbus: v5-vbus1 {
-		compatible = "regulator-fixed";
-		regulator-name = "v5.0-vbus1";
-		regulator-min-microvolt = <5000000>;
-		regulator-max-microvolt = <5000000>;
-		enable-active-high;
-		regulator-always-on;
-		gpio = <&expander0 4 GPIO_ACTIVE_HIGH>;
-	};
-
-	reg_usb2_1_vbus: v5-vbus1 {
 		compatible = "regulator-fixed";
 		regulator-name = "v5.0-vbus1";
 		regulator-min-microvolt = <5000000>;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/armada-38x.dtsi linux-libre-4.4.107-gnu/arch/arm/boot/dts/armada-38x.dtsi
--- linux-libre-4.4-gnu/arch/arm/boot/dts/armada-38x.dtsi	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/boot/dts/armada-38x.dtsi	2017-12-20 04:05:01.000000000 -0500
@@ -143,9 +143,9 @@
 				reg = <0x8000 0x1000>;
 				cache-unified;
 				cache-level = <2>;
-				arm,double-linefill-incr = <1>;
+				arm,double-linefill-incr = <0>;
 				arm,double-linefill-wrap = <0>;
-				arm,double-linefill = <1>;
+				arm,double-linefill = <0>;
 				prefetch-data = <1>;
 			};
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/armada-390.dtsi linux-libre-4.4.107-gnu/arch/arm/boot/dts/armada-390.dtsi
--- linux-libre-4.4-gnu/arch/arm/boot/dts/armada-390.dtsi	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/boot/dts/armada-390.dtsi	2017-12-20 04:05:01.000000000 -0500
@@ -47,6 +47,8 @@
 #include "armada-39x.dtsi"
 
 / {
+	compatible = "marvell,armada390";
+
 	soc {
 		internal-regs {
 			pinctrl@18000 {
@@ -54,4 +56,5 @@
 				reg = <0x18000 0x20>;
 			};
 		};
+	};
 };
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/armada-39x.dtsi linux-libre-4.4.107-gnu/arch/arm/boot/dts/armada-39x.dtsi
--- linux-libre-4.4-gnu/arch/arm/boot/dts/armada-39x.dtsi	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/boot/dts/armada-39x.dtsi	2017-12-20 04:05:01.000000000 -0500
@@ -104,9 +104,9 @@
 				reg = <0x8000 0x1000>;
 				cache-unified;
 				cache-level = <2>;
-				arm,double-linefill-incr = <1>;
+				arm,double-linefill-incr = <0>;
 				arm,double-linefill-wrap = <0>;
-				arm,double-linefill = <1>;
+				arm,double-linefill = <0>;
 				prefetch-data = <1>;
 			};
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/armada-xp-axpwifiap.dts linux-libre-4.4.107-gnu/arch/arm/boot/dts/armada-xp-axpwifiap.dts
--- linux-libre-4.4-gnu/arch/arm/boot/dts/armada-xp-axpwifiap.dts	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/boot/dts/armada-xp-axpwifiap.dts	2017-12-20 04:05:01.000000000 -0500
@@ -70,8 +70,8 @@
 	soc {
 		ranges = <MBUS_ID(0xf0, 0x01) 0 0 0xf1000000 0x100000
 			  MBUS_ID(0x01, 0x1d) 0 0 0xfff00000 0x100000
-			  MBUS_ID(0x09, 0x09) 0 0 0xf8100000 0x10000
-			  MBUS_ID(0x09, 0x05) 0 0 0xf8110000 0x10000>;
+			  MBUS_ID(0x09, 0x09) 0 0 0xf1100000 0x10000
+			  MBUS_ID(0x09, 0x05) 0 0 0xf1110000 0x10000>;
 
 		pcie-controller {
 			status = "okay";
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/armada-xp-db.dts linux-libre-4.4.107-gnu/arch/arm/boot/dts/armada-xp-db.dts
--- linux-libre-4.4-gnu/arch/arm/boot/dts/armada-xp-db.dts	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/boot/dts/armada-xp-db.dts	2017-12-20 04:05:01.000000000 -0500
@@ -76,8 +76,8 @@
 		ranges = <MBUS_ID(0xf0, 0x01) 0 0 0xf1000000 0x100000
 			  MBUS_ID(0x01, 0x1d) 0 0 0xfff00000 0x100000
 			  MBUS_ID(0x01, 0x2f) 0 0 0xf0000000 0x1000000
-			  MBUS_ID(0x09, 0x09) 0 0 0xf8100000 0x10000
-			  MBUS_ID(0x09, 0x05) 0 0 0xf8110000 0x10000>;
+			  MBUS_ID(0x09, 0x09) 0 0 0xf1100000 0x10000
+			  MBUS_ID(0x09, 0x05) 0 0 0xf1110000 0x10000>;
 
 		devbus-bootcs {
 			status = "okay";
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/armada-xp-gp.dts linux-libre-4.4.107-gnu/arch/arm/boot/dts/armada-xp-gp.dts
--- linux-libre-4.4-gnu/arch/arm/boot/dts/armada-xp-gp.dts	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/boot/dts/armada-xp-gp.dts	2017-12-20 04:05:01.000000000 -0500
@@ -95,8 +95,8 @@
 		ranges = <MBUS_ID(0xf0, 0x01) 0 0 0xf1000000 0x100000
 			  MBUS_ID(0x01, 0x1d) 0 0 0xfff00000 0x100000
 			  MBUS_ID(0x01, 0x2f) 0 0 0xf0000000 0x1000000
-			  MBUS_ID(0x09, 0x09) 0 0 0xf8100000 0x10000
-			  MBUS_ID(0x09, 0x05) 0 0 0xf8110000 0x10000>;
+			  MBUS_ID(0x09, 0x09) 0 0 0xf1100000 0x10000
+			  MBUS_ID(0x09, 0x05) 0 0 0xf1110000 0x10000>;
 
 		devbus-bootcs {
 			status = "okay";
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/armada-xp-lenovo-ix4-300d.dts linux-libre-4.4.107-gnu/arch/arm/boot/dts/armada-xp-lenovo-ix4-300d.dts
--- linux-libre-4.4-gnu/arch/arm/boot/dts/armada-xp-lenovo-ix4-300d.dts	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/boot/dts/armada-xp-lenovo-ix4-300d.dts	2017-12-20 04:05:01.000000000 -0500
@@ -65,8 +65,8 @@
 	soc {
 		ranges = <MBUS_ID(0xf0, 0x01) 0 0 0xd0000000 0x100000
 			MBUS_ID(0x01, 0x1d) 0 0 0xfff00000 0x100000
-			MBUS_ID(0x09, 0x09) 0 0 0xf8100000 0x10000
-			MBUS_ID(0x09, 0x05) 0 0 0xf8110000 0x10000>;
+			MBUS_ID(0x09, 0x09) 0 0 0xf1100000 0x10000
+			MBUS_ID(0x09, 0x05) 0 0 0xf1110000 0x10000>;
 
 		pcie-controller {
 			status = "okay";
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/armada-xp-linksys-mamba.dts linux-libre-4.4.107-gnu/arch/arm/boot/dts/armada-xp-linksys-mamba.dts
--- linux-libre-4.4-gnu/arch/arm/boot/dts/armada-xp-linksys-mamba.dts	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/boot/dts/armada-xp-linksys-mamba.dts	2017-12-20 04:05:01.000000000 -0500
@@ -70,8 +70,8 @@
 	soc {
 		ranges = <MBUS_ID(0xf0, 0x01) 0 0 0xf1000000 0x100000
 			  MBUS_ID(0x01, 0x1d) 0 0 0xfff00000 0x100000
-			  MBUS_ID(0x09, 0x09) 0 0 0xf8100000 0x10000
-			  MBUS_ID(0x09, 0x05) 0 0 0xf8110000 0x10000>;
+			  MBUS_ID(0x09, 0x09) 0 0 0xf1100000 0x10000
+			  MBUS_ID(0x09, 0x05) 0 0 0xf1110000 0x10000>;
 
 		pcie-controller {
 			status = "okay";
@@ -304,13 +304,13 @@
 		button@1 {
 			label = "WPS";
 			linux,code = <KEY_WPS_BUTTON>;
-			gpios = <&gpio1 0 GPIO_ACTIVE_HIGH>;
+			gpios = <&gpio1 0 GPIO_ACTIVE_LOW>;
 		};
 
 		button@2 {
 			label = "Factory Reset Button";
 			linux,code = <KEY_RESTART>;
-			gpios = <&gpio1 1 GPIO_ACTIVE_HIGH>;
+			gpios = <&gpio1 1 GPIO_ACTIVE_LOW>;
 		};
 	};
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/armada-xp-matrix.dts linux-libre-4.4.107-gnu/arch/arm/boot/dts/armada-xp-matrix.dts
--- linux-libre-4.4-gnu/arch/arm/boot/dts/armada-xp-matrix.dts	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/boot/dts/armada-xp-matrix.dts	2017-12-20 04:05:01.000000000 -0500
@@ -68,8 +68,8 @@
 	soc {
 		ranges = <MBUS_ID(0xf0, 0x01) 0 0 0xf1000000 0x100000
 			  MBUS_ID(0x01, 0x1d) 0 0 0xfff00000 0x100000
-			  MBUS_ID(0x09, 0x09) 0 0 0xf8100000 0x10000
-			  MBUS_ID(0x09, 0x05) 0 0 0xf8110000 0x10000>;
+			  MBUS_ID(0x09, 0x09) 0 0 0xf1100000 0x10000
+			  MBUS_ID(0x09, 0x05) 0 0 0xf1110000 0x10000>;
 
 		internal-regs {
 			serial@12000 {
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/armada-xp-netgear-rn2120.dts linux-libre-4.4.107-gnu/arch/arm/boot/dts/armada-xp-netgear-rn2120.dts
--- linux-libre-4.4-gnu/arch/arm/boot/dts/armada-xp-netgear-rn2120.dts	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/boot/dts/armada-xp-netgear-rn2120.dts	2017-12-20 04:05:01.000000000 -0500
@@ -64,8 +64,8 @@
 	soc {
 		ranges = <MBUS_ID(0xf0, 0x01) 0 0 0xd0000000 0x100000
 			  MBUS_ID(0x01, 0x1d) 0 0 0xfff00000 0x100000
-			  MBUS_ID(0x09, 0x09) 0 0 0xf8100000 0x10000
-			  MBUS_ID(0x09, 0x05) 0 0 0xf8110000 0x10000>;
+			  MBUS_ID(0x09, 0x09) 0 0 0xf1100000 0x10000
+			  MBUS_ID(0x09, 0x05) 0 0 0xf1110000 0x10000>;
 
 		pcie-controller {
 			status = "okay";
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/armada-xp-openblocks-ax3-4.dts linux-libre-4.4.107-gnu/arch/arm/boot/dts/armada-xp-openblocks-ax3-4.dts
--- linux-libre-4.4-gnu/arch/arm/boot/dts/armada-xp-openblocks-ax3-4.dts	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/boot/dts/armada-xp-openblocks-ax3-4.dts	2017-12-20 04:05:01.000000000 -0500
@@ -65,9 +65,9 @@
 	soc {
 		ranges = <MBUS_ID(0xf0, 0x01) 0 0 0xd0000000 0x100000
 			  MBUS_ID(0x01, 0x1d) 0 0 0xfff00000 0x100000
-			  MBUS_ID(0x01, 0x2f) 0 0 0xf0000000 0x8000000
-			  MBUS_ID(0x09, 0x09) 0 0 0xf8100000 0x10000
-			  MBUS_ID(0x09, 0x05) 0 0 0xf8110000 0x10000>;
+			  MBUS_ID(0x01, 0x2f) 0 0 0xe8000000 0x8000000
+			  MBUS_ID(0x09, 0x09) 0 0 0xf1100000 0x10000
+			  MBUS_ID(0x09, 0x05) 0 0 0xf1110000 0x10000>;
 
 		devbus-bootcs {
 			status = "okay";
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/armada-xp-synology-ds414.dts linux-libre-4.4.107-gnu/arch/arm/boot/dts/armada-xp-synology-ds414.dts
--- linux-libre-4.4-gnu/arch/arm/boot/dts/armada-xp-synology-ds414.dts	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/boot/dts/armada-xp-synology-ds414.dts	2017-12-20 04:05:01.000000000 -0500
@@ -78,8 +78,8 @@
 	soc {
 		ranges = <MBUS_ID(0xf0, 0x01) 0 0 0xf1000000 0x100000
 			  MBUS_ID(0x01, 0x1d) 0 0 0xfff00000 0x100000
-			  MBUS_ID(0x09, 0x09) 0 0 0xf8100000 0x10000
-			  MBUS_ID(0x09, 0x05) 0 0 0xf8110000 0x10000>;
+			  MBUS_ID(0x09, 0x09) 0 0 0xf1100000 0x10000
+			  MBUS_ID(0x09, 0x05) 0 0 0xf1110000 0x10000>;
 
 		pcie-controller {
 			status = "okay";
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/at91sam9x5.dtsi linux-libre-4.4.107-gnu/arch/arm/boot/dts/at91sam9x5.dtsi
--- linux-libre-4.4-gnu/arch/arm/boot/dts/at91sam9x5.dtsi	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/boot/dts/at91sam9x5.dtsi	2017-12-20 04:05:01.000000000 -0500
@@ -106,7 +106,7 @@
 
 			pmc: pmc@fffffc00 {
 				compatible = "atmel,at91sam9x5-pmc", "syscon";
-				reg = <0xfffffc00 0x100>;
+				reg = <0xfffffc00 0x200>;
 				interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>;
 				interrupt-controller;
 				#address-cells = <1>;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/at91-sama5d2_xplained.dts linux-libre-4.4.107-gnu/arch/arm/boot/dts/at91-sama5d2_xplained.dts
--- linux-libre-4.4-gnu/arch/arm/boot/dts/at91-sama5d2_xplained.dts	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/boot/dts/at91-sama5d2_xplained.dts	2017-12-20 04:05:01.000000000 -0500
@@ -122,6 +122,8 @@
 			uart1: serial@f8020000 {
 				pinctrl-names = "default";
 				pinctrl-0 = <&pinctrl_uart1_default>;
+				atmel,use-dma-rx;
+				atmel,use-dma-tx;
 				status = "okay";
 			};
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/at91-sama5d3_xplained.dts linux-libre-4.4.107-gnu/arch/arm/boot/dts/at91-sama5d3_xplained.dts
--- linux-libre-4.4-gnu/arch/arm/boot/dts/at91-sama5d3_xplained.dts	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/boot/dts/at91-sama5d3_xplained.dts	2017-12-20 04:05:01.000000000 -0500
@@ -162,9 +162,10 @@
 			};
 
 			adc0: adc@f8018000 {
+				atmel,adc-vref = <3300>;
+				atmel,adc-channels-used = <0xfe>;
 				pinctrl-0 = <
 					&pinctrl_adc0_adtrg
-					&pinctrl_adc0_ad0
 					&pinctrl_adc0_ad1
 					&pinctrl_adc0_ad2
 					&pinctrl_adc0_ad3
@@ -172,8 +173,6 @@
 					&pinctrl_adc0_ad5
 					&pinctrl_adc0_ad6
 					&pinctrl_adc0_ad7
-					&pinctrl_adc0_ad8
-					&pinctrl_adc0_ad9
 					>;
 				status = "okay";
 			};
@@ -303,6 +302,7 @@
 		regulator-name = "mmc0-card-supply";
 		regulator-min-microvolt = <3300000>;
 		regulator-max-microvolt = <3300000>;
+		regulator-always-on;
 	};
 
 	gpio_keys {
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/at91-sama5d4ek.dts linux-libre-4.4.107-gnu/arch/arm/boot/dts/at91-sama5d4ek.dts
--- linux-libre-4.4-gnu/arch/arm/boot/dts/at91-sama5d4ek.dts	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/boot/dts/at91-sama5d4ek.dts	2017-12-20 04:05:01.000000000 -0500
@@ -160,8 +160,15 @@
 			};
 
 			macb0: ethernet@f8020000 {
+				pinctrl-0 = <&pinctrl_macb0_rmii &pinctrl_macb0_phy_irq>;
 				phy-mode = "rmii";
 				status = "okay";
+
+				ethernet-phy@1 {
+					reg = <0x1>;
+					interrupt-parent = <&pioE>;
+					interrupts = <1 IRQ_TYPE_LEVEL_LOW>;
+				};
 			};
 
 			mmc1: mmc@fc000000 {
@@ -193,6 +200,10 @@
 
 			pinctrl@fc06a000 {
 				board {
+					pinctrl_macb0_phy_irq: macb0_phy_irq {
+						atmel,pins =
+							<AT91_PIOE 1 AT91_PERIPH_GPIO AT91_PINCTRL_NONE>;
+					};
 					pinctrl_mmc0_cd: mmc0_cd {
 						atmel,pins =
 							<AT91_PIOE 5 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP_DEGLITCH>;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/at91-sama5d4_xplained.dts linux-libre-4.4.107-gnu/arch/arm/boot/dts/at91-sama5d4_xplained.dts
--- linux-libre-4.4-gnu/arch/arm/boot/dts/at91-sama5d4_xplained.dts	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/boot/dts/at91-sama5d4_xplained.dts	2017-12-20 04:05:01.000000000 -0500
@@ -86,10 +86,12 @@
 			macb0: ethernet@f8020000 {
 				phy-mode = "rmii";
 				status = "okay";
+				pinctrl-names = "default";
+				pinctrl-0 = <&pinctrl_macb0_rmii &pinctrl_macb0_phy_irq>;
 
 				phy0: ethernet-phy@1 {
 					interrupt-parent = <&pioE>;
-					interrupts = <1 IRQ_TYPE_EDGE_FALLING>;
+					interrupts = <1 IRQ_TYPE_LEVEL_LOW>;
 					reg = <1>;
 				};
 			};
@@ -108,6 +110,8 @@
 			};
 
 			usart3: serial@fc00c000 {
+				atmel,use-dma-rx;
+				atmel,use-dma-tx;
 				status = "okay";
 			};
 
@@ -152,6 +156,10 @@
 						atmel,pins =
 							<AT91_PIOE 8 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP_DEGLITCH>;
 					};
+					pinctrl_macb0_phy_irq: macb0_phy_irq_0 {
+						atmel,pins =
+							<AT91_PIOE 1 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP_DEGLITCH>;
+					};
 				};
 			};
 		};
@@ -262,5 +270,6 @@
 		regulator-min-microvolt = <3300000>;
 		regulator-max-microvolt = <3300000>;
 		vin-supply = <&vcc_3v3_reg>;
+		regulator-always-on;
 	};
 };
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/bcm5301x.dtsi linux-libre-4.4.107-gnu/arch/arm/boot/dts/bcm5301x.dtsi
--- linux-libre-4.4-gnu/arch/arm/boot/dts/bcm5301x.dtsi	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/boot/dts/bcm5301x.dtsi	2017-12-20 04:05:01.000000000 -0500
@@ -54,14 +54,14 @@
 		timer@0200 {
 			compatible = "arm,cortex-a9-global-timer";
 			reg = <0x0200 0x100>;
-			interrupts = <GIC_PPI 11 IRQ_TYPE_LEVEL_HIGH>;
+			interrupts = <GIC_PPI 11 IRQ_TYPE_EDGE_RISING>;
 			clocks = <&clk_periph>;
 		};
 
 		local-timer@0600 {
 			compatible = "arm,cortex-a9-twd-timer";
 			reg = <0x0600 0x100>;
-			interrupts = <GIC_PPI 13 IRQ_TYPE_LEVEL_HIGH>;
+			interrupts = <GIC_PPI 13 IRQ_TYPE_EDGE_RISING>;
 			clocks = <&clk_periph>;
 		};
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/da850-evm.dts linux-libre-4.4.107-gnu/arch/arm/boot/dts/da850-evm.dts
--- linux-libre-4.4-gnu/arch/arm/boot/dts/da850-evm.dts	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/boot/dts/da850-evm.dts	2017-12-20 04:05:01.000000000 -0500
@@ -85,6 +85,7 @@
 				#size-cells = <1>;
 				compatible = "m25p64";
 				spi-max-frequency = <30000000>;
+				m25p,fast-read;
 				reg = <0>;
 				partition@0 {
 					label = "U-Boot-SPL";
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/dm814x.dtsi linux-libre-4.4.107-gnu/arch/arm/boot/dts/dm814x.dtsi
--- linux-libre-4.4-gnu/arch/arm/boot/dts/dm814x.dtsi	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/boot/dts/dm814x.dtsi	2017-12-20 04:05:01.000000000 -0500
@@ -138,7 +138,7 @@
 			};
 
 			uart1: uart@20000 {
-				compatible = "ti,omap3-uart";
+				compatible = "ti,am3352-uart", "ti,omap3-uart";
 				ti,hwmods = "uart1";
 				reg = <0x20000 0x2000>;
 				clock-frequency = <48000000>;
@@ -148,7 +148,7 @@
 			};
 
 			uart2: uart@22000 {
-				compatible = "ti,omap3-uart";
+				compatible = "ti,am3352-uart", "ti,omap3-uart";
 				ti,hwmods = "uart2";
 				reg = <0x22000 0x2000>;
 				clock-frequency = <48000000>;
@@ -158,7 +158,7 @@
 			};
 
 			uart3: uart@24000 {
-				compatible = "ti,omap3-uart";
+				compatible = "ti,am3352-uart", "ti,omap3-uart";
 				ti,hwmods = "uart3";
 				reg = <0x24000 0x2000>;
 				clock-frequency = <48000000>;
@@ -189,10 +189,11 @@
 				ranges = <0 0x160000 0x16d000>;
 
 				scm_conf: scm_conf@0 {
-					compatible = "syscon";
+					compatible = "syscon", "simple-bus";
 					reg = <0x0 0x800>;
 					#address-cells = <1>;
 					#size-cells = <1>;
+					ranges = <0 0 0x800>;
 
 					scm_clocks: clocks {
 						#address-cells = <1>;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/dm816x.dtsi linux-libre-4.4.107-gnu/arch/arm/boot/dts/dm816x.dtsi
--- linux-libre-4.4-gnu/arch/arm/boot/dts/dm816x.dtsi	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/boot/dts/dm816x.dtsi	2017-12-20 04:05:01.000000000 -0500
@@ -347,7 +347,7 @@
 		};
 
 		uart1: uart@48020000 {
-			compatible = "ti,omap3-uart";
+			compatible = "ti,am3352-uart", "ti,omap3-uart";
 			ti,hwmods = "uart1";
 			reg = <0x48020000 0x2000>;
 			clock-frequency = <48000000>;
@@ -357,7 +357,7 @@
 		};
 
 		uart2: uart@48022000 {
-			compatible = "ti,omap3-uart";
+			compatible = "ti,am3352-uart", "ti,omap3-uart";
 			ti,hwmods = "uart2";
 			reg = <0x48022000 0x2000>;
 			clock-frequency = <48000000>;
@@ -367,7 +367,7 @@
 		};
 
 		uart3: uart@48024000 {
-			compatible = "ti,omap3-uart";
+			compatible = "ti,am3352-uart", "ti,omap3-uart";
 			ti,hwmods = "uart3";
 			reg = <0x48024000 0x2000>;
 			clock-frequency = <48000000>;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/dra7.dtsi linux-libre-4.4.107-gnu/arch/arm/boot/dts/dra7.dtsi
--- linux-libre-4.4-gnu/arch/arm/boot/dts/dra7.dtsi	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/boot/dts/dra7.dtsi	2017-12-20 04:05:01.000000000 -0500
@@ -1497,6 +1497,16 @@
 			       0x48485200 0x2E00>;
 			#address-cells = <1>;
 			#size-cells = <1>;
+
+			/*
+			 * Do not allow gating of cpsw clock as workaround
+			 * for errata i877. Keeping internal clock disabled
+			 * causes the device switching characteristics
+			 * to degrade over time and eventually fail to meet
+			 * the data manual delay time/skew specs.
+			 */
+			ti,no-idle;
+
 			/*
 			 * rx_thresh_pend
 			 * rx_pend
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/exynos4210-trats.dts linux-libre-4.4.107-gnu/arch/arm/boot/dts/exynos4210-trats.dts
--- linux-libre-4.4-gnu/arch/arm/boot/dts/exynos4210-trats.dts	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/boot/dts/exynos4210-trats.dts	2017-12-20 04:05:01.000000000 -0500
@@ -298,6 +298,8 @@
 		compatible = "maxim,max8997-pmic";
 
 		reg = <0x66>;
+		interrupt-parent = <&gpx0>;
+		interrupts = <7 0>;
 
 		max8997,pmic-buck1-uses-gpio-dvs;
 		max8997,pmic-buck2-uses-gpio-dvs;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/imx31.dtsi linux-libre-4.4.107-gnu/arch/arm/boot/dts/imx31.dtsi
--- linux-libre-4.4-gnu/arch/arm/boot/dts/imx31.dtsi	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/boot/dts/imx31.dtsi	2017-12-20 04:05:01.000000000 -0500
@@ -30,11 +30,11 @@
 		};
 	};
 
-	avic: avic-interrupt-controller@60000000 {
+	avic: interrupt-controller@68000000 {
 		compatible = "fsl,imx31-avic", "fsl,avic";
 		interrupt-controller;
 		#interrupt-cells = <1>;
-		reg = <0x60000000 0x100000>;
+		reg = <0x68000000 0x100000>;
 	};
 
 	soc {
@@ -110,13 +110,6 @@
 				interrupts = <19>;
 				clocks = <&clks 25>;
 			};
-
-			clks: ccm@53f80000{
-				compatible = "fsl,imx31-ccm";
-				reg = <0x53f80000 0x4000>;
-				interrupts = <0 31 0x04 0 53 0x04>;
-				#clock-cells = <1>;
-			};
 		};
 
 		aips@53f00000 { /* AIPS2 */
@@ -126,6 +119,13 @@
 			reg = <0x53f00000 0x100000>;
 			ranges;
 
+			clks: ccm@53f80000{
+				compatible = "fsl,imx31-ccm";
+				reg = <0x53f80000 0x4000>;
+				interrupts = <31>, <53>;
+				#clock-cells = <1>;
+			};
+
 			gpt: timer@53f90000 {
 				compatible = "fsl,imx31-gpt";
 				reg = <0x53f90000 0x4000>;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/imx6dl.dtsi linux-libre-4.4.107-gnu/arch/arm/boot/dts/imx6dl.dtsi
--- linux-libre-4.4-gnu/arch/arm/boot/dts/imx6dl.dtsi	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/boot/dts/imx6dl.dtsi	2017-12-20 04:05:01.000000000 -0500
@@ -30,7 +30,7 @@
 				/* kHz    uV */
 				996000  1250000
 				792000  1175000
-				396000  1075000
+				396000  1150000
 			>;
 			fsl,soc-operating-points = <
 				/* ARM kHz  SOC-PU uV */
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/imx6qdl.dtsi linux-libre-4.4.107-gnu/arch/arm/boot/dts/imx6qdl.dtsi
--- linux-libre-4.4-gnu/arch/arm/boot/dts/imx6qdl.dtsi	2016-01-10 20:58:14.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/boot/dts/imx6qdl.dtsi	2017-12-20 11:13:21.000000000 -0500
@@ -221,7 +221,7 @@
 					clocks = <&clks IMX6QDL_CLK_SPDIF_GCLK>, <&clks IMX6QDL_CLK_OSC>,
 						 <&clks IMX6QDL_CLK_SPDIF>, <&clks IMX6QDL_CLK_ASRC>,
 						 <&clks IMX6QDL_CLK_DUMMY>, <&clks IMX6QDL_CLK_ESAI_EXTAL>,
-						 <&clks IMX6QDL_CLK_IPG>, <&clks IMX6QDL_CLK_MLB>,
+						 <&clks IMX6QDL_CLK_IPG>, <&clks IMX6QDL_CLK_DUMMY>,
 						 <&clks IMX6QDL_CLK_DUMMY>, <&clks IMX6QDL_CLK_SPBA>;
 					clock-names = "core",  "rxtx0",
 						      "rxtx1", "rxtx2",
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/imx6qdl-nitrogen6_max.dtsi linux-libre-4.4.107-gnu/arch/arm/boot/dts/imx6qdl-nitrogen6_max.dtsi
--- linux-libre-4.4-gnu/arch/arm/boot/dts/imx6qdl-nitrogen6_max.dtsi	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/boot/dts/imx6qdl-nitrogen6_max.dtsi	2017-12-20 04:05:01.000000000 -0500
@@ -319,8 +319,6 @@
 		compatible = "fsl,imx6q-nitrogen6_max-sgtl5000",
 			     "fsl,imx-audio-sgtl5000";
 		model = "imx6q-nitrogen6_max-sgtl5000";
-		pinctrl-names = "default";
-		pinctrl-0 = <&pinctrl_sgtl5000>;
 		ssi-controller = <&ssi1>;
 		audio-codec = <&codec>;
 		audio-routing =
@@ -401,6 +399,8 @@
 
 	codec: sgtl5000@0a {
 		compatible = "fsl,sgtl5000";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_sgtl5000>;
 		reg = <0x0a>;
 		clocks = <&clks 201>;
 		VDDA-supply = <&reg_2p5v>;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/kirkwood-ib62x0.dts linux-libre-4.4.107-gnu/arch/arm/boot/dts/kirkwood-ib62x0.dts
--- linux-libre-4.4-gnu/arch/arm/boot/dts/kirkwood-ib62x0.dts	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/boot/dts/kirkwood-ib62x0.dts	2017-12-20 04:05:01.000000000 -0500
@@ -113,7 +113,7 @@
 
 	partition@e0000 {
 		label = "u-boot environment";
-		reg = <0xe0000 0x100000>;
+		reg = <0xe0000 0x20000>;
 	};
 
 	partition@100000 {
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/logicpd-torpedo-37xx-devkit.dts linux-libre-4.4.107-gnu/arch/arm/boot/dts/logicpd-torpedo-37xx-devkit.dts
--- linux-libre-4.4-gnu/arch/arm/boot/dts/logicpd-torpedo-37xx-devkit.dts	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/boot/dts/logicpd-torpedo-37xx-devkit.dts	2017-12-20 04:05:01.000000000 -0500
@@ -88,7 +88,7 @@
 	interrupts-extended = <&intc 83 &omap3_pmx_core 0x11a>;
 	pinctrl-names = "default";
 	pinctrl-0 = <&mmc1_pins &mmc1_cd>;
-	cd-gpios = <&gpio4 31 IRQ_TYPE_LEVEL_LOW>;		/* gpio127 */
+	cd-gpios = <&gpio4 31 GPIO_ACTIVE_LOW>;		/* gpio127 */
 	vmmc-supply = <&vmmc1>;
 	bus-width = <4>;
 	cap-power-off-card;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/logicpd-torpedo-som.dtsi linux-libre-4.4.107-gnu/arch/arm/boot/dts/logicpd-torpedo-som.dtsi
--- linux-libre-4.4-gnu/arch/arm/boot/dts/logicpd-torpedo-som.dtsi	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/boot/dts/logicpd-torpedo-som.dtsi	2017-12-20 04:05:01.000000000 -0500
@@ -122,6 +122,7 @@
 		interrupt-parent = <&gpio5>;
 		interrupts = <24 IRQ_TYPE_LEVEL_HIGH>; /* gpio 152 */
 		ref-clock-frequency = <26000000>;
+		tcxo-clock-frequency = <26000000>;
 	};
 };
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/omap3-n900.dts linux-libre-4.4.107-gnu/arch/arm/boot/dts/omap3-n900.dts
--- linux-libre-4.4-gnu/arch/arm/boot/dts/omap3-n900.dts	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/boot/dts/omap3-n900.dts	2017-12-20 04:05:01.000000000 -0500
@@ -697,6 +697,8 @@
 	vmmc_aux-supply = <&vsim>;
 	bus-width = <8>;
 	non-removable;
+	no-sdio;
+	no-sd;
 };
 
 &mmc3 {
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/omap3-overo-base.dtsi linux-libre-4.4.107-gnu/arch/arm/boot/dts/omap3-overo-base.dtsi
--- linux-libre-4.4-gnu/arch/arm/boot/dts/omap3-overo-base.dtsi	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/boot/dts/omap3-overo-base.dtsi	2017-12-20 04:05:01.000000000 -0500
@@ -223,7 +223,9 @@
 };
 
 &gpmc {
-	ranges = <0 0 0x00000000 0x20000000>;
+	ranges = <0 0 0x30000000 0x1000000>,	/* CS0 */
+		 <4 0 0x2b000000 0x1000000>,	/* CS4 */
+		 <5 0 0x2c000000 0x1000000>;	/* CS5 */
 
 	nand@0,0 {
 		linux,mtd-name= "micron,mt29c4g96maz";
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/omap3-overo-chestnut43-common.dtsi linux-libre-4.4.107-gnu/arch/arm/boot/dts/omap3-overo-chestnut43-common.dtsi
--- linux-libre-4.4-gnu/arch/arm/boot/dts/omap3-overo-chestnut43-common.dtsi	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/boot/dts/omap3-overo-chestnut43-common.dtsi	2017-12-20 04:05:01.000000000 -0500
@@ -55,8 +55,6 @@
 #include "omap-gpmc-smsc9221.dtsi"
 
 &gpmc {
-	ranges = <5 0 0x2c000000 0x1000000>;	/* CS5 */
-
 	ethernet@gpmc {
 		reg = <5 0 0xff>;
 		interrupt-parent = <&gpio6>;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/omap3-overo-tobi-common.dtsi linux-libre-4.4.107-gnu/arch/arm/boot/dts/omap3-overo-tobi-common.dtsi
--- linux-libre-4.4-gnu/arch/arm/boot/dts/omap3-overo-tobi-common.dtsi	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/boot/dts/omap3-overo-tobi-common.dtsi	2017-12-20 04:05:01.000000000 -0500
@@ -27,8 +27,6 @@
 #include "omap-gpmc-smsc9221.dtsi"
 
 &gpmc {
-	ranges = <5 0 0x2c000000 0x1000000>;	/* CS5 */
-
 	ethernet@gpmc {
 		reg = <5 0 0xff>;
 		interrupt-parent = <&gpio6>;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/omap3-overo-tobiduo-common.dtsi linux-libre-4.4.107-gnu/arch/arm/boot/dts/omap3-overo-tobiduo-common.dtsi
--- linux-libre-4.4-gnu/arch/arm/boot/dts/omap3-overo-tobiduo-common.dtsi	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/boot/dts/omap3-overo-tobiduo-common.dtsi	2017-12-20 04:05:01.000000000 -0500
@@ -15,9 +15,6 @@
 #include "omap-gpmc-smsc9221.dtsi"
 
 &gpmc {
-	ranges = <4 0 0x2b000000 0x1000000>,	/* CS4 */
-		 <5 0 0x2c000000 0x1000000>;	/* CS5 */
-
 	smsc1: ethernet@gpmc {
 		reg = <5 0 0xff>;
 		interrupt-parent = <&gpio6>;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/omap5-board-common.dtsi linux-libre-4.4.107-gnu/arch/arm/boot/dts/omap5-board-common.dtsi
--- linux-libre-4.4-gnu/arch/arm/boot/dts/omap5-board-common.dtsi	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/boot/dts/omap5-board-common.dtsi	2017-12-20 04:05:01.000000000 -0500
@@ -130,6 +130,16 @@
 	};
 };
 
+&gpio8 {
+	/* TI trees use GPIO instead of msecure, see also muxing */
+	p234 {
+		gpio-hog;
+		gpios = <10 GPIO_ACTIVE_HIGH>;
+		output-high;
+		line-name = "gpio8_234/msecure";
+	};
+};
+
 &omap5_pmx_core {
 	pinctrl-names = "default";
 	pinctrl-0 = <
@@ -213,6 +223,13 @@
 		>;
 	};
 
+	/* TI trees use GPIO mode; msecure mode does not work reliably? */
+	palmas_msecure_pins: palmas_msecure_pins {
+		pinctrl-single,pins = <
+			OMAP5_IOPAD(0x180, PIN_OUTPUT | MUX_MODE6) /* gpio8_234 */
+		>;
+	};
+
 	usbhost_pins: pinmux_usbhost_pins {
 		pinctrl-single,pins = <
 			0x84 (PIN_INPUT | MUX_MODE0) /* usbb2_hsic_strobe */
@@ -278,6 +295,12 @@
 			&usbhost_wkup_pins
 	>;
 
+	palmas_sys_nirq_pins: pinmux_palmas_sys_nirq_pins {
+		pinctrl-single,pins = <
+			OMAP5_IOPAD(0x068, PIN_INPUT_PULLUP | MUX_MODE0) /* sys_nirq1 */
+		>;
+	};
+
 	usbhost_wkup_pins: pinmux_usbhost_wkup_pins {
 		pinctrl-single,pins = <
 			0x1A (PIN_OUTPUT | MUX_MODE0) /* fref_clk1_out, USB hub clk */
@@ -345,6 +368,8 @@
 		interrupt-controller;
 		#interrupt-cells = <2>;
 		ti,system-power-controller;
+		pinctrl-names = "default";
+		pinctrl-0 = <&palmas_sys_nirq_pins &palmas_msecure_pins>;
 
 		extcon_usb3: palmas_usb {
 			compatible = "ti,palmas-usb-vid";
@@ -358,6 +383,14 @@
 			#clock-cells = <0>;
 		};
 
+		rtc {
+			compatible = "ti,palmas-rtc";
+			interrupt-parent = <&palmas>;
+			interrupts = <8 IRQ_TYPE_NONE>;
+			ti,backup-battery-chargeable;
+			ti,backup-battery-charge-high-current;
+		};
+
 		palmas_pmic {
 			compatible = "ti,palmas-pmic";
 			interrupt-parent = <&palmas>;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/pxa27x.dtsi linux-libre-4.4.107-gnu/arch/arm/boot/dts/pxa27x.dtsi
--- linux-libre-4.4-gnu/arch/arm/boot/dts/pxa27x.dtsi	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/boot/dts/pxa27x.dtsi	2017-12-20 04:05:01.000000000 -0500
@@ -13,6 +13,7 @@
 			interrupts = <25>;
 			#dma-channels = <32>;
 			#dma-cells = <2>;
+			#dma-requests = <75>;
 			status = "okay";
 		};
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/pxa3xx.dtsi linux-libre-4.4.107-gnu/arch/arm/boot/dts/pxa3xx.dtsi
--- linux-libre-4.4-gnu/arch/arm/boot/dts/pxa3xx.dtsi	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/boot/dts/pxa3xx.dtsi	2017-12-20 04:05:01.000000000 -0500
@@ -12,6 +12,7 @@
 			interrupts = <25>;
 			#dma-channels = <32>;
 			#dma-cells = <2>;
+			#dma-requests = <100>;
 			status = "okay";
 		};
 
@@ -30,7 +31,7 @@
 			reg = <0x43100000 90>;
 			interrupts = <45>;
 			clocks = <&clks CLK_NAND>;
-			dmas = <&pdma 97>;
+			dmas = <&pdma 97 3>;
 			dma-names = "data";
 			#address-cells = <1>;
 			#size-cells = <1>;	
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/qcom-apq8064.dtsi linux-libre-4.4.107-gnu/arch/arm/boot/dts/qcom-apq8064.dtsi
--- linux-libre-4.4-gnu/arch/arm/boot/dts/qcom-apq8064.dtsi	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/boot/dts/qcom-apq8064.dtsi	2017-12-20 04:05:01.000000000 -0500
@@ -5,6 +5,7 @@
 #include <dt-bindings/reset/qcom,gcc-msm8960.h>
 #include <dt-bindings/clock/qcom,mmcc-msm8960.h>
 #include <dt-bindings/soc/qcom,gsbi.h>
+#include <dt-bindings/interrupt-controller/irq.h>
 #include <dt-bindings/interrupt-controller/arm-gic.h>
 / {
 	model = "Qualcomm APQ8064";
@@ -354,22 +355,50 @@
 
 					compatible = "qcom,pm8921-gpio";
 					reg = <0x150>;
-					interrupts = <192 1>, <193 1>, <194 1>,
-						     <195 1>, <196 1>, <197 1>,
-						     <198 1>, <199 1>, <200 1>,
-						     <201 1>, <202 1>, <203 1>,
-						     <204 1>, <205 1>, <206 1>,
-						     <207 1>, <208 1>, <209 1>,
-						     <210 1>, <211 1>, <212 1>,
-						     <213 1>, <214 1>, <215 1>,
-						     <216 1>, <217 1>, <218 1>,
-						     <219 1>, <220 1>, <221 1>,
-						     <222 1>, <223 1>, <224 1>,
-						     <225 1>, <226 1>, <227 1>,
-						     <228 1>, <229 1>, <230 1>,
-						     <231 1>, <232 1>, <233 1>,
-						     <234 1>, <235 1>;
-
+					interrupts = <192 IRQ_TYPE_NONE>,
+						     <193 IRQ_TYPE_NONE>,
+						     <194 IRQ_TYPE_NONE>,
+						     <195 IRQ_TYPE_NONE>,
+						     <196 IRQ_TYPE_NONE>,
+						     <197 IRQ_TYPE_NONE>,
+						     <198 IRQ_TYPE_NONE>,
+						     <199 IRQ_TYPE_NONE>,
+						     <200 IRQ_TYPE_NONE>,
+						     <201 IRQ_TYPE_NONE>,
+						     <202 IRQ_TYPE_NONE>,
+						     <203 IRQ_TYPE_NONE>,
+						     <204 IRQ_TYPE_NONE>,
+						     <205 IRQ_TYPE_NONE>,
+						     <206 IRQ_TYPE_NONE>,
+						     <207 IRQ_TYPE_NONE>,
+						     <208 IRQ_TYPE_NONE>,
+						     <209 IRQ_TYPE_NONE>,
+						     <210 IRQ_TYPE_NONE>,
+						     <211 IRQ_TYPE_NONE>,
+						     <212 IRQ_TYPE_NONE>,
+						     <213 IRQ_TYPE_NONE>,
+						     <214 IRQ_TYPE_NONE>,
+						     <215 IRQ_TYPE_NONE>,
+						     <216 IRQ_TYPE_NONE>,
+						     <217 IRQ_TYPE_NONE>,
+						     <218 IRQ_TYPE_NONE>,
+						     <219 IRQ_TYPE_NONE>,
+						     <220 IRQ_TYPE_NONE>,
+						     <221 IRQ_TYPE_NONE>,
+						     <222 IRQ_TYPE_NONE>,
+						     <223 IRQ_TYPE_NONE>,
+						     <224 IRQ_TYPE_NONE>,
+						     <225 IRQ_TYPE_NONE>,
+						     <226 IRQ_TYPE_NONE>,
+						     <227 IRQ_TYPE_NONE>,
+						     <228 IRQ_TYPE_NONE>,
+						     <229 IRQ_TYPE_NONE>,
+						     <230 IRQ_TYPE_NONE>,
+						     <231 IRQ_TYPE_NONE>,
+						     <232 IRQ_TYPE_NONE>,
+						     <233 IRQ_TYPE_NONE>,
+						     <234 IRQ_TYPE_NONE>,
+						     <235 IRQ_TYPE_NONE>;
 					gpio-controller;
 					#gpio-cells = <2>;
 
@@ -381,9 +410,18 @@
 					gpio-controller;
 					#gpio-cells = <2>;
 					interrupts =
-					<128 1>, <129 1>, <130 1>, <131 1>,
-					<132 1>, <133 1>, <134 1>, <135 1>,
-					<136 1>, <137 1>, <138 1>, <139 1>;
+					<128 IRQ_TYPE_NONE>,
+					<129 IRQ_TYPE_NONE>,
+					<130 IRQ_TYPE_NONE>,
+					<131 IRQ_TYPE_NONE>,
+					<132 IRQ_TYPE_NONE>,
+					<133 IRQ_TYPE_NONE>,
+					<134 IRQ_TYPE_NONE>,
+					<135 IRQ_TYPE_NONE>,
+					<136 IRQ_TYPE_NONE>,
+					<137 IRQ_TYPE_NONE>,
+					<138 IRQ_TYPE_NONE>,
+					<139 IRQ_TYPE_NONE>;
 				};
 
 				rtc@11d {
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/r8a7790.dtsi linux-libre-4.4.107-gnu/arch/arm/boot/dts/r8a7790.dtsi
--- linux-libre-4.4-gnu/arch/arm/boot/dts/r8a7790.dtsi	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/boot/dts/r8a7790.dtsi	2017-12-20 04:05:01.000000000 -0500
@@ -1409,7 +1409,8 @@
 	};
 
 	msiof0: spi@e6e20000 {
-		compatible = "renesas,msiof-r8a7790";
+		compatible = "renesas,msiof-r8a7790",
+			     "renesas,rcar-gen2-msiof";
 		reg = <0 0xe6e20000 0 0x0064>;
 		interrupts = <0 156 IRQ_TYPE_LEVEL_HIGH>;
 		clocks = <&mstp0_clks R8A7790_CLK_MSIOF0>;
@@ -1422,7 +1423,8 @@
 	};
 
 	msiof1: spi@e6e10000 {
-		compatible = "renesas,msiof-r8a7790";
+		compatible = "renesas,msiof-r8a7790",
+			     "renesas,rcar-gen2-msiof";
 		reg = <0 0xe6e10000 0 0x0064>;
 		interrupts = <0 157 IRQ_TYPE_LEVEL_HIGH>;
 		clocks = <&mstp2_clks R8A7790_CLK_MSIOF1>;
@@ -1435,7 +1437,8 @@
 	};
 
 	msiof2: spi@e6e00000 {
-		compatible = "renesas,msiof-r8a7790";
+		compatible = "renesas,msiof-r8a7790",
+			     "renesas,rcar-gen2-msiof";
 		reg = <0 0xe6e00000 0 0x0064>;
 		interrupts = <0 158 IRQ_TYPE_LEVEL_HIGH>;
 		clocks = <&mstp2_clks R8A7790_CLK_MSIOF2>;
@@ -1448,7 +1451,8 @@
 	};
 
 	msiof3: spi@e6c90000 {
-		compatible = "renesas,msiof-r8a7790";
+		compatible = "renesas,msiof-r8a7790",
+			     "renesas,rcar-gen2-msiof";
 		reg = <0 0xe6c90000 0 0x0064>;
 		interrupts = <0 159 IRQ_TYPE_LEVEL_HIGH>;
 		clocks = <&mstp2_clks R8A7790_CLK_MSIOF3>;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/r8a7794.dtsi linux-libre-4.4.107-gnu/arch/arm/boot/dts/r8a7794.dtsi
--- linux-libre-4.4-gnu/arch/arm/boot/dts/r8a7794.dtsi	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/boot/dts/r8a7794.dtsi	2017-12-20 04:05:01.000000000 -0500
@@ -1023,7 +1023,7 @@
 		mstp7_clks: mstp7_clks@e615014c {
 			compatible = "renesas,r8a7794-mstp-clocks", "renesas,cpg-mstp-clocks";
 			reg = <0 0xe615014c 0 4>, <0 0xe61501c4 0 4>;
-			clocks = <&mp_clk>, <&mp_clk>,
+			clocks = <&mp_clk>, <&hp_clk>,
 				 <&zs_clk>, <&p_clk>, <&p_clk>, <&zs_clk>,
 				 <&zs_clk>, <&p_clk>, <&p_clk>, <&p_clk>, <&p_clk>;
 			#clock-cells = <1>;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/sama5d2.dtsi linux-libre-4.4.107-gnu/arch/arm/boot/dts/sama5d2.dtsi
--- linux-libre-4.4-gnu/arch/arm/boot/dts/sama5d2.dtsi	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/boot/dts/sama5d2.dtsi	2017-12-20 04:05:01.000000000 -0500
@@ -856,6 +856,13 @@
 				compatible = "atmel,at91sam9260-usart";
 				reg = <0xf801c000 0x100>;
 				interrupts = <24 IRQ_TYPE_LEVEL_HIGH 7>;
+				dmas = <&dma0
+					(AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1) |
+					 AT91_XDMAC_DT_PERID(35))>,
+				       <&dma0
+					(AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1) |
+					 AT91_XDMAC_DT_PERID(36))>;
+				dma-names = "tx", "rx";
 				clocks = <&uart0_clk>;
 				clock-names = "usart";
 				status = "disabled";
@@ -865,6 +872,13 @@
 				compatible = "atmel,at91sam9260-usart";
 				reg = <0xf8020000 0x100>;
 				interrupts = <25 IRQ_TYPE_LEVEL_HIGH 7>;
+				dmas = <&dma0
+					(AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1) |
+					 AT91_XDMAC_DT_PERID(37))>,
+				       <&dma0
+					(AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1) |
+					 AT91_XDMAC_DT_PERID(38))>;
+				dma-names = "tx", "rx";
 				clocks = <&uart1_clk>;
 				clock-names = "usart";
 				status = "disabled";
@@ -874,6 +888,13 @@
 				compatible = "atmel,at91sam9260-usart";
 				reg = <0xf8024000 0x100>;
 				interrupts = <26 IRQ_TYPE_LEVEL_HIGH 7>;
+				dmas = <&dma0
+					(AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1) |
+					 AT91_XDMAC_DT_PERID(39))>,
+				       <&dma0
+					(AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1) |
+					 AT91_XDMAC_DT_PERID(40))>;
+				dma-names = "tx", "rx";
 				clocks = <&uart2_clk>;
 				clock-names = "usart";
 				status = "disabled";
@@ -985,6 +1006,13 @@
 				compatible = "atmel,at91sam9260-usart";
 				reg = <0xfc008000 0x100>;
 				interrupts = <27 IRQ_TYPE_LEVEL_HIGH 7>;
+				dmas = <&dma0
+					(AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1) |
+					 AT91_XDMAC_DT_PERID(41))>,
+				       <&dma0
+					(AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1) |
+					 AT91_XDMAC_DT_PERID(42))>;
+				dma-names = "tx", "rx";
 				clocks = <&uart3_clk>;
 				clock-names = "usart";
 				status = "disabled";
@@ -993,6 +1021,13 @@
 			uart4: serial@fc00c000 {
 				compatible = "atmel,at91sam9260-usart";
 				reg = <0xfc00c000 0x100>;
+				dmas = <&dma0
+					(AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1) |
+					 AT91_XDMAC_DT_PERID(43))>,
+				       <&dma0
+					(AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1) |
+					 AT91_XDMAC_DT_PERID(44))>;
+				dma-names = "tx", "rx";
 				interrupts = <28 IRQ_TYPE_LEVEL_HIGH 7>;
 				clocks = <&uart4_clk>;
 				clock-names = "usart";
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/sama5d2-pinfunc.h linux-libre-4.4.107-gnu/arch/arm/boot/dts/sama5d2-pinfunc.h
--- linux-libre-4.4-gnu/arch/arm/boot/dts/sama5d2-pinfunc.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/boot/dts/sama5d2-pinfunc.h	2017-12-20 04:05:01.000000000 -0500
@@ -90,7 +90,7 @@
 #define PIN_PA14__I2SC1_MCK		PINMUX_PIN(PIN_PA14, 4, 2)
 #define PIN_PA14__FLEXCOM3_IO2		PINMUX_PIN(PIN_PA14, 5, 1)
 #define PIN_PA14__D9			PINMUX_PIN(PIN_PA14, 6, 2)
-#define PIN_PA15			14
+#define PIN_PA15			15
 #define PIN_PA15__GPIO			PINMUX_PIN(PIN_PA15, 0, 0)
 #define PIN_PA15__SPI0_MOSI		PINMUX_PIN(PIN_PA15, 1, 1)
 #define PIN_PA15__TF1			PINMUX_PIN(PIN_PA15, 2, 1)
@@ -837,8 +837,8 @@
 #define PIN_PD23__ISC_FIELD		PINMUX_PIN(PIN_PD23, 6, 4)
 #define PIN_PD24			120
 #define PIN_PD24__GPIO			PINMUX_PIN(PIN_PD24, 0, 0)
-#define PIN_PD24__UTXD2			PINMUX_PIN(PIN_PD23, 1, 2)
-#define PIN_PD24__FLEXCOM4_IO3		PINMUX_PIN(PIN_PD23, 3, 3)
+#define PIN_PD24__UTXD2			PINMUX_PIN(PIN_PD24, 1, 2)
+#define PIN_PD24__FLEXCOM4_IO3		PINMUX_PIN(PIN_PD24, 3, 3)
 #define PIN_PD25			121
 #define PIN_PD25__GPIO			PINMUX_PIN(PIN_PD25, 0, 0)
 #define PIN_PD25__SPI1_SPCK		PINMUX_PIN(PIN_PD25, 1, 3)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/sama5d4.dtsi linux-libre-4.4.107-gnu/arch/arm/boot/dts/sama5d4.dtsi
--- linux-libre-4.4-gnu/arch/arm/boot/dts/sama5d4.dtsi	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/boot/dts/sama5d4.dtsi	2017-12-20 04:05:01.000000000 -0500
@@ -1342,7 +1342,7 @@
 			dbgu: serial@fc069000 {
 				compatible = "atmel,at91sam9260-dbgu", "atmel,at91sam9260-usart";
 				reg = <0xfc069000 0x200>;
-				interrupts = <2 IRQ_TYPE_LEVEL_HIGH 7>;
+				interrupts = <45 IRQ_TYPE_LEVEL_HIGH 7>;
 				pinctrl-names = "default";
 				pinctrl-0 = <&pinctrl_dbgu>;
 				clocks = <&dbgu_clk>;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/ste-nomadik-stn8815.dtsi linux-libre-4.4.107-gnu/arch/arm/boot/dts/ste-nomadik-stn8815.dtsi
--- linux-libre-4.4-gnu/arch/arm/boot/dts/ste-nomadik-stn8815.dtsi	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/boot/dts/ste-nomadik-stn8815.dtsi	2017-12-20 04:05:01.000000000 -0500
@@ -127,22 +127,14 @@
 			};
 			mmcsd_default_mode: mmcsd_default {
 				mmcsd_default_cfg1 {
-					/* MCCLK */
-					pins = "GPIO8_B10";
-					ste,output = <0>;
-				};
-				mmcsd_default_cfg2 {
-					/* MCCMDDIR, MCDAT0DIR, MCDAT31DIR, MCDATDIR2 */
-					pins = "GPIO10_C11", "GPIO15_A12",
-					"GPIO16_C13", "GPIO23_D15";
-					ste,output = <1>;
-				};
-				mmcsd_default_cfg3 {
-					/* MCCMD, MCDAT3-0, MCMSFBCLK */
-					pins = "GPIO9_A10", "GPIO11_B11",
-					"GPIO12_A11", "GPIO13_C12",
-					"GPIO14_B12", "GPIO24_C15";
-					ste,input = <1>;
+					/*
+					 * MCCLK, MCCMDDIR, MCDAT0DIR, MCDAT31DIR, MCDATDIR2
+					 * MCCMD, MCDAT3-0, MCMSFBCLK
+					 */
+					pins = "GPIO8_B10", "GPIO9_A10", "GPIO10_C11", "GPIO11_B11",
+					       "GPIO12_A11", "GPIO13_C12", "GPIO14_B12", "GPIO15_A12",
+					       "GPIO16_C13", "GPIO23_D15", "GPIO24_C15";
+					ste,output = <2>;
 				};
 			};
 		};
@@ -802,10 +794,21 @@
 			clock-names = "mclk", "apb_pclk";
 			interrupt-parent = <&vica>;
 			interrupts = <22>;
-			max-frequency = <48000000>;
+			max-frequency = <400000>;
 			bus-width = <4>;
 			cap-mmc-highspeed;
 			cap-sd-highspeed;
+			full-pwr-cycle;
+			/*
+			 * The STw4811 circuit used with the Nomadik strictly
+			 * requires that all of these signal direction pins be
+			 * routed and used for its 4-bit levelshifter.
+			 */
+			st,sig-dir-dat0;
+			st,sig-dir-dat2;
+			st,sig-dir-dat31;
+			st,sig-dir-cmd;
+			st,sig-pin-fbclk;
 			pinctrl-names = "default";
 			pinctrl-0 = <&mmcsd_default_mux>, <&mmcsd_default_mode>;
 			vmmc-supply = <&vmmc_regulator>;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/stih407-family.dtsi linux-libre-4.4.107-gnu/arch/arm/boot/dts/stih407-family.dtsi
--- linux-libre-4.4-gnu/arch/arm/boot/dts/stih407-family.dtsi	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/boot/dts/stih407-family.dtsi	2017-12-20 04:05:01.000000000 -0500
@@ -497,8 +497,9 @@
 			interrupt-names = "mmcirq";
 			pinctrl-names = "default";
 			pinctrl-0 = <&pinctrl_mmc0>;
-			clock-names = "mmc";
-			clocks = <&clk_s_c0_flexgen CLK_MMC_0>;
+			clock-names = "mmc", "icn";
+			clocks = <&clk_s_c0_flexgen CLK_MMC_0>,
+				 <&clk_s_c0_flexgen CLK_RX_ICN_HVA>;
 			bus-width = <8>;
 			non-removable;
 		};
@@ -512,8 +513,9 @@
 			interrupt-names = "mmcirq";
 			pinctrl-names = "default";
 			pinctrl-0 = <&pinctrl_sd1>;
-			clock-names = "mmc";
-			clocks = <&clk_s_c0_flexgen CLK_MMC_1>;
+			clock-names = "mmc", "icn";
+			clocks = <&clk_s_c0_flexgen CLK_MMC_1>,
+				 <&clk_s_c0_flexgen CLK_RX_ICN_HVA>;
 			resets = <&softreset STIH407_MMC1_SOFTRESET>;
 			bus-width = <4>;
 		};
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/stih410.dtsi linux-libre-4.4.107-gnu/arch/arm/boot/dts/stih410.dtsi
--- linux-libre-4.4-gnu/arch/arm/boot/dts/stih410.dtsi	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/boot/dts/stih410.dtsi	2017-12-20 04:05:01.000000000 -0500
@@ -41,7 +41,8 @@
 			compatible = "st,st-ohci-300x";
 			reg = <0x9a03c00 0x100>;
 			interrupts = <GIC_SPI 180 IRQ_TYPE_NONE>;
-			clocks = <&clk_s_c0_flexgen CLK_TX_ICN_DISP_0>;
+			clocks = <&clk_s_c0_flexgen CLK_TX_ICN_DISP_0>,
+				 <&clk_s_c0_flexgen CLK_RX_ICN_DISP_0>;
 			resets = <&powerdown STIH407_USB2_PORT0_POWERDOWN>,
 				 <&softreset STIH407_USB2_PORT0_SOFTRESET>;
 			reset-names = "power", "softreset";
@@ -57,7 +58,8 @@
 			interrupts = <GIC_SPI 151 IRQ_TYPE_NONE>;
 			pinctrl-names = "default";
 			pinctrl-0 = <&pinctrl_usb0>;
-			clocks = <&clk_s_c0_flexgen CLK_TX_ICN_DISP_0>;
+			clocks = <&clk_s_c0_flexgen CLK_TX_ICN_DISP_0>,
+				 <&clk_s_c0_flexgen CLK_RX_ICN_DISP_0>;
 			resets = <&powerdown STIH407_USB2_PORT0_POWERDOWN>,
 				 <&softreset STIH407_USB2_PORT0_SOFTRESET>;
 			reset-names = "power", "softreset";
@@ -71,7 +73,8 @@
 			compatible = "st,st-ohci-300x";
 			reg = <0x9a83c00 0x100>;
 			interrupts = <GIC_SPI 181 IRQ_TYPE_NONE>;
-			clocks = <&clk_s_c0_flexgen CLK_TX_ICN_DISP_0>;
+			clocks = <&clk_s_c0_flexgen CLK_TX_ICN_DISP_0>,
+				 <&clk_s_c0_flexgen CLK_RX_ICN_DISP_0>;
 			resets = <&powerdown STIH407_USB2_PORT1_POWERDOWN>,
 				 <&softreset STIH407_USB2_PORT1_SOFTRESET>;
 			reset-names = "power", "softreset";
@@ -87,7 +90,8 @@
 			interrupts = <GIC_SPI 153 IRQ_TYPE_NONE>;
 			pinctrl-names = "default";
 			pinctrl-0 = <&pinctrl_usb1>;
-			clocks = <&clk_s_c0_flexgen CLK_TX_ICN_DISP_0>;
+			clocks = <&clk_s_c0_flexgen CLK_TX_ICN_DISP_0>,
+				 <&clk_s_c0_flexgen CLK_RX_ICN_DISP_0>;
 			resets = <&powerdown STIH407_USB2_PORT1_POWERDOWN>,
 				 <&softreset STIH407_USB2_PORT1_SOFTRESET>;
 			reset-names = "power", "softreset";
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/sun4i-a10-a1000.dts linux-libre-4.4.107-gnu/arch/arm/boot/dts/sun4i-a10-a1000.dts
--- linux-libre-4.4-gnu/arch/arm/boot/dts/sun4i-a10-a1000.dts	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/boot/dts/sun4i-a10-a1000.dts	2017-12-20 04:05:01.000000000 -0500
@@ -84,6 +84,7 @@
 		regulator-name = "emac-3v3";
 		regulator-min-microvolt = <3300000>;
 		regulator-max-microvolt = <3300000>;
+		startup-delay-us = <20000>;
 		enable-active-high;
 		gpio = <&pio 7 15 GPIO_ACTIVE_HIGH>;
 	};
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/sun4i-a10-hackberry.dts linux-libre-4.4.107-gnu/arch/arm/boot/dts/sun4i-a10-hackberry.dts
--- linux-libre-4.4-gnu/arch/arm/boot/dts/sun4i-a10-hackberry.dts	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/boot/dts/sun4i-a10-hackberry.dts	2017-12-20 04:05:01.000000000 -0500
@@ -66,6 +66,7 @@
 		regulator-name = "emac-3v3";
 		regulator-min-microvolt = <3300000>;
 		regulator-max-microvolt = <3300000>;
+		startup-delay-us = <20000>;
 		enable-active-high;
 		gpio = <&pio 7 19 GPIO_ACTIVE_HIGH>;
 	};
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/sun4i-a10-jesurun-q5.dts linux-libre-4.4.107-gnu/arch/arm/boot/dts/sun4i-a10-jesurun-q5.dts
--- linux-libre-4.4-gnu/arch/arm/boot/dts/sun4i-a10-jesurun-q5.dts	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/boot/dts/sun4i-a10-jesurun-q5.dts	2017-12-20 04:05:01.000000000 -0500
@@ -80,6 +80,7 @@
 		regulator-name = "emac-3v3";
 		regulator-min-microvolt = <3300000>;
 		regulator-max-microvolt = <3300000>;
+		startup-delay-us = <20000>;
 		enable-active-high;
 		gpio = <&pio 7 19 GPIO_ACTIVE_HIGH>;   /* PH19 */
 	};
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/sun5i-a10s-wobo-i5.dts linux-libre-4.4.107-gnu/arch/arm/boot/dts/sun5i-a10s-wobo-i5.dts
--- linux-libre-4.4-gnu/arch/arm/boot/dts/sun5i-a10s-wobo-i5.dts	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/boot/dts/sun5i-a10s-wobo-i5.dts	2017-12-20 04:05:01.000000000 -0500
@@ -79,6 +79,7 @@
 		regulator-name = "emac-3v3";
 		regulator-min-microvolt = <3300000>;
 		regulator-max-microvolt = <3300000>;
+		startup-delay-us = <20000>;
 		enable-active-high;
 		gpio = <&pio 0 2 GPIO_ACTIVE_HIGH>;
 	};
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/sun5i-a13.dtsi linux-libre-4.4.107-gnu/arch/arm/boot/dts/sun5i-a13.dtsi
--- linux-libre-4.4-gnu/arch/arm/boot/dts/sun5i-a13.dtsi	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/boot/dts/sun5i-a13.dtsi	2017-12-20 04:05:01.000000000 -0500
@@ -83,7 +83,7 @@
 			trips {
 				cpu_alert0: cpu_alert0 {
 					/* milliCelsius */
-					temperature = <850000>;
+					temperature = <85000>;
 					hysteresis = <2000>;
 					type = "passive";
 				};
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/sun5i-r8-chip.dts linux-libre-4.4.107-gnu/arch/arm/boot/dts/sun5i-r8-chip.dts
--- linux-libre-4.4-gnu/arch/arm/boot/dts/sun5i-r8-chip.dts	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/boot/dts/sun5i-r8-chip.dts	2017-12-20 04:05:01.000000000 -0500
@@ -52,7 +52,7 @@
 
 / {
 	model = "NextThing C.H.I.P.";
-	compatible = "nextthing,chip", "allwinner,sun5i-r8";
+	compatible = "nextthing,chip", "allwinner,sun5i-r8", "allwinner,sun5i-a13";
 
 	aliases {
 		i2c0 = &i2c0;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/boot/dts/tegra20-paz00.dts linux-libre-4.4.107-gnu/arch/arm/boot/dts/tegra20-paz00.dts
--- linux-libre-4.4-gnu/arch/arm/boot/dts/tegra20-paz00.dts	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/boot/dts/tegra20-paz00.dts	2017-12-20 04:05:01.000000000 -0500
@@ -565,6 +565,7 @@
 			regulator-name = "+3VS,vdd_pnl";
 			regulator-min-microvolt = <3300000>;
 			regulator-max-microvolt = <3300000>;
+			regulator-boot-on;
 			gpio = <&gpio TEGRA_GPIO(A, 4) GPIO_ACTIVE_HIGH>;
 			enable-active-high;
 		};
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/common/icst.c linux-libre-4.4.107-gnu/arch/arm/common/icst.c
--- linux-libre-4.4-gnu/arch/arm/common/icst.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/common/icst.c	2017-12-20 04:05:01.000000000 -0500
@@ -16,7 +16,7 @@
  */
 #include <linux/module.h>
 #include <linux/kernel.h>
-
+#include <asm/div64.h>
 #include <asm/hardware/icst.h>
 
 /*
@@ -29,7 +29,11 @@ EXPORT_SYMBOL(icst525_s2div);
 
 unsigned long icst_hz(const struct icst_params *p, struct icst_vco vco)
 {
-	return p->ref * 2 * (vco.v + 8) / ((vco.r + 2) * p->s2div[vco.s]);
+	u64 dividend = p->ref * 2 * (u64)(vco.v + 8);
+	u32 divisor = (vco.r + 2) * p->s2div[vco.s];
+
+	do_div(dividend, divisor);
+	return (unsigned long)dividend;
 }
 
 EXPORT_SYMBOL(icst_hz);
@@ -58,6 +62,7 @@ icst_hz_to_vco(const struct icst_params
 
 		if (f > p->vco_min && f <= p->vco_max)
 			break;
+		i++;
 	} while (i < 8);
 
 	if (i >= 8)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/common/sa1111.c linux-libre-4.4.107-gnu/arch/arm/common/sa1111.c
--- linux-libre-4.4-gnu/arch/arm/common/sa1111.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/common/sa1111.c	2017-12-20 04:05:01.000000000 -0500
@@ -869,9 +869,9 @@ struct sa1111_save_data {
 
 #ifdef CONFIG_PM
 
-static int sa1111_suspend(struct platform_device *dev, pm_message_t state)
+static int sa1111_suspend_noirq(struct device *dev)
 {
-	struct sa1111 *sachip = platform_get_drvdata(dev);
+	struct sa1111 *sachip = dev_get_drvdata(dev);
 	struct sa1111_save_data *save;
 	unsigned long flags;
 	unsigned int val;
@@ -934,9 +934,9 @@ static int sa1111_suspend(struct platfor
  *	restored by their respective drivers, and must be called
  *	via LDM after this function.
  */
-static int sa1111_resume(struct platform_device *dev)
+static int sa1111_resume_noirq(struct device *dev)
 {
-	struct sa1111 *sachip = platform_get_drvdata(dev);
+	struct sa1111 *sachip = dev_get_drvdata(dev);
 	struct sa1111_save_data *save;
 	unsigned long flags, id;
 	void __iomem *base;
@@ -952,7 +952,7 @@ static int sa1111_resume(struct platform
 	id = sa1111_readl(sachip->base + SA1111_SKID);
 	if ((id & SKID_ID_MASK) != SKID_SA1111_ID) {
 		__sa1111_remove(sachip);
-		platform_set_drvdata(dev, NULL);
+		dev_set_drvdata(dev, NULL);
 		kfree(save);
 		return 0;
 	}
@@ -1003,8 +1003,8 @@ static int sa1111_resume(struct platform
 }
 
 #else
-#define sa1111_suspend NULL
-#define sa1111_resume  NULL
+#define sa1111_suspend_noirq NULL
+#define sa1111_resume_noirq  NULL
 #endif
 
 static int sa1111_probe(struct platform_device *pdev)
@@ -1038,6 +1038,11 @@ static int sa1111_remove(struct platform
 	return 0;
 }
 
+static struct dev_pm_ops sa1111_pm_ops = {
+	.suspend_noirq = sa1111_suspend_noirq,
+	.resume_noirq = sa1111_resume_noirq,
+};
+
 /*
  *	Not sure if this should be on the system bus or not yet.
  *	We really want some way to register a system device at
@@ -1050,10 +1055,9 @@ static int sa1111_remove(struct platform
 static struct platform_driver sa1111_device_driver = {
 	.probe		= sa1111_probe,
 	.remove		= sa1111_remove,
-	.suspend	= sa1111_suspend,
-	.resume		= sa1111_resume,
 	.driver		= {
 		.name	= "sa1111",
+		.pm	= &sa1111_pm_ops,
 	},
 };
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/configs/omap2plus_defconfig linux-libre-4.4.107-gnu/arch/arm/configs/omap2plus_defconfig
--- linux-libre-4.4-gnu/arch/arm/configs/omap2plus_defconfig	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/configs/omap2plus_defconfig	2017-12-20 04:05:01.000000000 -0500
@@ -221,6 +221,7 @@ CONFIG_SERIO=m
 CONFIG_SERIAL_8250=y
 CONFIG_SERIAL_8250_CONSOLE=y
 CONFIG_SERIAL_8250_NR_UARTS=32
+CONFIG_SERIAL_8250_RUNTIME_UARTS=6
 CONFIG_SERIAL_8250_EXTENDED=y
 CONFIG_SERIAL_8250_MANY_PORTS=y
 CONFIG_SERIAL_8250_SHARE_IRQ=y
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/configs/s3c2410_defconfig linux-libre-4.4.107-gnu/arch/arm/configs/s3c2410_defconfig
--- linux-libre-4.4-gnu/arch/arm/configs/s3c2410_defconfig	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/configs/s3c2410_defconfig	2017-12-20 04:05:01.000000000 -0500
@@ -87,9 +87,9 @@ CONFIG_IPV6_TUNNEL=m
 CONFIG_NETFILTER=y
 CONFIG_NF_CONNTRACK=m
 CONFIG_NF_CONNTRACK_EVENTS=y
-CONFIG_NF_CT_PROTO_DCCP=m
-CONFIG_NF_CT_PROTO_SCTP=m
-CONFIG_NF_CT_PROTO_UDPLITE=m
+CONFIG_NF_CT_PROTO_DCCP=y
+CONFIG_NF_CT_PROTO_SCTP=y
+CONFIG_NF_CT_PROTO_UDPLITE=y
 CONFIG_NF_CONNTRACK_AMANDA=m
 CONFIG_NF_CONNTRACK_FTP=m
 CONFIG_NF_CONNTRACK_H323=m
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/crypto/aesbs-glue.c linux-libre-4.4.107-gnu/arch/arm/crypto/aesbs-glue.c
--- linux-libre-4.4-gnu/arch/arm/crypto/aesbs-glue.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/crypto/aesbs-glue.c	2017-12-20 04:05:01.000000000 -0500
@@ -357,7 +357,7 @@ static struct crypto_alg aesbs_algs[] =
 }, {
 	.cra_name		= "cbc(aes)",
 	.cra_driver_name	= "cbc-aes-neonbs",
-	.cra_priority		= 300,
+	.cra_priority		= 250,
 	.cra_flags		= CRYPTO_ALG_TYPE_ABLKCIPHER|CRYPTO_ALG_ASYNC,
 	.cra_blocksize		= AES_BLOCK_SIZE,
 	.cra_ctxsize		= sizeof(struct async_helper_ctx),
@@ -377,7 +377,7 @@ static struct crypto_alg aesbs_algs[] =
 }, {
 	.cra_name		= "ctr(aes)",
 	.cra_driver_name	= "ctr-aes-neonbs",
-	.cra_priority		= 300,
+	.cra_priority		= 250,
 	.cra_flags		= CRYPTO_ALG_TYPE_ABLKCIPHER|CRYPTO_ALG_ASYNC,
 	.cra_blocksize		= 1,
 	.cra_ctxsize		= sizeof(struct async_helper_ctx),
@@ -397,7 +397,7 @@ static struct crypto_alg aesbs_algs[] =
 }, {
 	.cra_name		= "xts(aes)",
 	.cra_driver_name	= "xts-aes-neonbs",
-	.cra_priority		= 300,
+	.cra_priority		= 250,
 	.cra_flags		= CRYPTO_ALG_TYPE_ABLKCIPHER|CRYPTO_ALG_ASYNC,
 	.cra_blocksize		= AES_BLOCK_SIZE,
 	.cra_ctxsize		= sizeof(struct async_helper_ctx),
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/crypto/aes-ce-glue.c linux-libre-4.4.107-gnu/arch/arm/crypto/aes-ce-glue.c
--- linux-libre-4.4-gnu/arch/arm/crypto/aes-ce-glue.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/crypto/aes-ce-glue.c	2017-12-20 04:05:01.000000000 -0500
@@ -87,8 +87,13 @@ static int ce_aes_expandkey(struct crypt
 		u32 *rki = ctx->key_enc + (i * kwords);
 		u32 *rko = rki + kwords;
 
+#ifndef CONFIG_CPU_BIG_ENDIAN
 		rko[0] = ror32(ce_aes_sub(rki[kwords - 1]), 8);
 		rko[0] = rko[0] ^ rki[0] ^ rcon[i];
+#else
+		rko[0] = rol32(ce_aes_sub(rki[kwords - 1]), 8);
+		rko[0] = rko[0] ^ rki[0] ^ (rcon[i] << 24);
+#endif
 		rko[1] = rko[0] ^ rki[1];
 		rko[2] = rko[1] ^ rki[2];
 		rko[3] = rko[2] ^ rki[3];
@@ -279,7 +284,7 @@ static int ctr_encrypt(struct blkcipher_
 		err = blkcipher_walk_done(desc, &walk,
 					  walk.nbytes % AES_BLOCK_SIZE);
 	}
-	if (nbytes) {
+	if (walk.nbytes % AES_BLOCK_SIZE) {
 		u8 *tdst = walk.dst.virt.addr + blocks * AES_BLOCK_SIZE;
 		u8 *tsrc = walk.src.virt.addr + blocks * AES_BLOCK_SIZE;
 		u8 __aligned(8) tail[AES_BLOCK_SIZE];
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/crypto/ghash-ce-glue.c linux-libre-4.4.107-gnu/arch/arm/crypto/ghash-ce-glue.c
--- linux-libre-4.4-gnu/arch/arm/crypto/ghash-ce-glue.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/crypto/ghash-ce-glue.c	2017-12-20 04:05:01.000000000 -0500
@@ -226,6 +226,27 @@ static int ghash_async_digest(struct aha
 	}
 }
 
+static int ghash_async_import(struct ahash_request *req, const void *in)
+{
+	struct ahash_request *cryptd_req = ahash_request_ctx(req);
+	struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+	struct ghash_async_ctx *ctx = crypto_ahash_ctx(tfm);
+	struct shash_desc *desc = cryptd_shash_desc(cryptd_req);
+
+	desc->tfm = cryptd_ahash_child(ctx->cryptd_tfm);
+	desc->flags = req->base.flags;
+
+	return crypto_shash_import(desc, in);
+}
+
+static int ghash_async_export(struct ahash_request *req, void *out)
+{
+	struct ahash_request *cryptd_req = ahash_request_ctx(req);
+	struct shash_desc *desc = cryptd_shash_desc(cryptd_req);
+
+	return crypto_shash_export(desc, out);
+}
+
 static int ghash_async_setkey(struct crypto_ahash *tfm, const u8 *key,
 			      unsigned int keylen)
 {
@@ -274,7 +295,10 @@ static struct ahash_alg ghash_async_alg
 	.final			= ghash_async_final,
 	.setkey			= ghash_async_setkey,
 	.digest			= ghash_async_digest,
+	.import			= ghash_async_import,
+	.export			= ghash_async_export,
 	.halg.digestsize	= GHASH_DIGEST_SIZE,
+	.halg.statesize		= sizeof(struct ghash_desc_ctx),
 	.halg.base		= {
 		.cra_name	= "ghash",
 		.cra_driver_name = "ghash-ce",
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/include/asm/assembler.h linux-libre-4.4.107-gnu/arch/arm/include/asm/assembler.h
--- linux-libre-4.4-gnu/arch/arm/include/asm/assembler.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/include/asm/assembler.h	2017-12-20 04:05:01.000000000 -0500
@@ -512,4 +512,22 @@ THUMB(	orr	\reg , \reg , #PSR_T_BIT	)
 #endif
 	.endm
 
+	.macro	bug, msg, line
+#ifdef CONFIG_THUMB2_KERNEL
+1:	.inst	0xde02
+#else
+1:	.inst	0xe7f001f2
+#endif
+#ifdef CONFIG_DEBUG_BUGVERBOSE
+	.pushsection .rodata.str, "aMS", %progbits, 1
+2:	.asciz	"\msg"
+	.popsection
+	.pushsection __bug_table, "aw"
+	.align	2
+	.word	1b, 2b
+	.hword	\line
+	.popsection
+#endif
+	.endm
+
 #endif /* __ASM_ASSEMBLER_H__ */
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/include/asm/cputype.h linux-libre-4.4.107-gnu/arch/arm/include/asm/cputype.h
--- linux-libre-4.4-gnu/arch/arm/include/asm/cputype.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/include/asm/cputype.h	2017-12-20 04:05:01.000000000 -0500
@@ -81,6 +81,9 @@
 #define ARM_CPU_XSCALE_ARCH_V2		0x4000
 #define ARM_CPU_XSCALE_ARCH_V3		0x6000
 
+/* Qualcomm implemented cores */
+#define ARM_CPU_PART_SCORPION		0x510002d0
+
 extern unsigned int processor_id;
 
 #ifdef CONFIG_CPU_CP15
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/include/asm/dma-mapping.h linux-libre-4.4.107-gnu/arch/arm/include/asm/dma-mapping.h
--- linux-libre-4.4-gnu/arch/arm/include/asm/dma-mapping.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/include/asm/dma-mapping.h	2017-12-20 04:05:01.000000000 -0500
@@ -119,7 +119,7 @@ static inline dma_addr_t virt_to_dma(str
 /* The ARM override for dma_max_pfn() */
 static inline unsigned long dma_max_pfn(struct device *dev)
 {
-	return PHYS_PFN_OFFSET + dma_to_pfn(dev, *dev->dma_mask);
+	return dma_to_pfn(dev, *dev->dma_mask);
 }
 #define dma_max_pfn(dev) dma_max_pfn(dev)
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/include/asm/elf.h linux-libre-4.4.107-gnu/arch/arm/include/asm/elf.h
--- linux-libre-4.4-gnu/arch/arm/include/asm/elf.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/include/asm/elf.h	2017-12-20 04:05:01.000000000 -0500
@@ -112,12 +112,8 @@ int dump_task_regs(struct task_struct *t
 #define CORE_DUMP_USE_REGSET
 #define ELF_EXEC_PAGESIZE	4096
 
-/* This is the location that an ET_DYN program is loaded if exec'ed.  Typical
-   use of this is to invoke "./ld.so someprog" to test out a new version of
-   the loader.  We need to make sure that it is out of the way of the program
-   that it will "exec", and that there is sufficient room for the brk.  */
-
-#define ELF_ET_DYN_BASE	(TASK_SIZE / 3 * 2)
+/* This is the base location for PIE (ET_DYN with INTERP) loads. */
+#define ELF_ET_DYN_BASE		0x400000UL
 
 /* When the program starts, a1 contains a pointer to a function to be 
    registered with atexit, as per the SVR4 ABI.  A value of 0 means we 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/include/asm/floppy.h linux-libre-4.4.107-gnu/arch/arm/include/asm/floppy.h
--- linux-libre-4.4-gnu/arch/arm/include/asm/floppy.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/include/asm/floppy.h	2017-12-20 04:05:01.000000000 -0500
@@ -17,7 +17,7 @@
 
 #define fd_outb(val,port)			\
 	do {					\
-		if ((port) == FD_DOR)		\
+		if ((port) == (u32)FD_DOR)	\
 			fd_setdor((val));	\
 		else				\
 			outb((val),(port));	\
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/include/asm/ftrace.h linux-libre-4.4.107-gnu/arch/arm/include/asm/ftrace.h
--- linux-libre-4.4-gnu/arch/arm/include/asm/ftrace.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/include/asm/ftrace.h	2017-12-20 04:05:01.000000000 -0500
@@ -54,6 +54,24 @@ static inline void *return_address(unsig
 
 #define ftrace_return_address(n) return_address(n)
 
+#define ARCH_HAS_SYSCALL_MATCH_SYM_NAME
+
+static inline bool arch_syscall_match_sym_name(const char *sym,
+					       const char *name)
+{
+	if (!strcmp(sym, "sys_mmap2"))
+		sym = "sys_mmap_pgoff";
+	else if (!strcmp(sym, "sys_statfs64_wrapper"))
+		sym = "sys_statfs64";
+	else if (!strcmp(sym, "sys_fstatfs64_wrapper"))
+		sym = "sys_fstatfs64";
+	else if (!strcmp(sym, "sys_arm_fadvise64_64"))
+		sym = "sys_fadvise64_64";
+
+	/* Ignore case since sym may start with "SyS" instead of "sys" */
+	return !strcasecmp(sym, name);
+}
+
 #endif /* ifndef __ASSEMBLY__ */
 
 #endif /* _ASM_ARM_FTRACE */
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/include/asm/Kbuild linux-libre-4.4.107-gnu/arch/arm/include/asm/Kbuild
--- linux-libre-4.4-gnu/arch/arm/include/asm/Kbuild	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/include/asm/Kbuild	2017-12-20 04:05:01.000000000 -0500
@@ -36,4 +36,3 @@ generic-y += termbits.h
 generic-y += termios.h
 generic-y += timex.h
 generic-y += trace_clock.h
-generic-y += unaligned.h
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/include/asm/kvm_arm.h linux-libre-4.4.107-gnu/arch/arm/include/asm/kvm_arm.h
--- linux-libre-4.4-gnu/arch/arm/include/asm/kvm_arm.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/include/asm/kvm_arm.h	2017-12-20 04:05:01.000000000 -0500
@@ -161,8 +161,7 @@
 #else
 #define VTTBR_X		(5 - KVM_T0SZ)
 #endif
-#define VTTBR_BADDR_SHIFT (VTTBR_X - 1)
-#define VTTBR_BADDR_MASK  (((1LLU << (40 - VTTBR_X)) - 1) << VTTBR_BADDR_SHIFT)
+#define VTTBR_BADDR_MASK  (((1LLU << (40 - VTTBR_X)) - 1) << VTTBR_X)
 #define VTTBR_VMID_SHIFT  (48LLU)
 #define VTTBR_VMID_MASK	  (0xffLLU << VTTBR_VMID_SHIFT)
 
@@ -209,6 +208,7 @@
 #define HSR_EC_IABT_HYP	(0x21)
 #define HSR_EC_DABT	(0x24)
 #define HSR_EC_DABT_HYP	(0x25)
+#define HSR_EC_MAX	(0x3f)
 
 #define HSR_WFI_IS_WFE		(1U << 0)
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/include/asm/kvm_mmu.h linux-libre-4.4.107-gnu/arch/arm/include/asm/kvm_mmu.h
--- linux-libre-4.4-gnu/arch/arm/include/asm/kvm_mmu.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/include/asm/kvm_mmu.h	2017-12-20 04:05:01.000000000 -0500
@@ -204,18 +204,12 @@ static inline void __coherent_cache_gues
 	 * and iterate over the range.
 	 */
 
-	bool need_flush = !vcpu_has_cache_enabled(vcpu) || ipa_uncached;
-
 	VM_BUG_ON(size & ~PAGE_MASK);
 
-	if (!need_flush && !icache_is_pipt())
-		goto vipt_cache;
-
 	while (size) {
 		void *va = kmap_atomic_pfn(pfn);
 
-		if (need_flush)
-			kvm_flush_dcache_to_poc(va, PAGE_SIZE);
+		kvm_flush_dcache_to_poc(va, PAGE_SIZE);
 
 		if (icache_is_pipt())
 			__cpuc_coherent_user_range((unsigned long)va,
@@ -227,7 +221,6 @@ static inline void __coherent_cache_gues
 		kunmap_atomic(va);
 	}
 
-vipt_cache:
 	if (!icache_is_pipt() && !icache_is_vivt_asid_tagged()) {
 		/* any kind of VIPT cache */
 		__flush_icache_all();
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/include/asm/pgtable-2level.h linux-libre-4.4.107-gnu/arch/arm/include/asm/pgtable-2level.h
--- linux-libre-4.4-gnu/arch/arm/include/asm/pgtable-2level.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/include/asm/pgtable-2level.h	2017-12-20 04:05:01.000000000 -0500
@@ -193,6 +193,7 @@ static inline pmd_t *pmd_offset(pud_t *p
 
 #define pmd_large(pmd)		(pmd_val(pmd) & 2)
 #define pmd_bad(pmd)		(pmd_val(pmd) & 2)
+#define pmd_present(pmd)	(pmd_val(pmd))
 
 #define copy_pmd(pmdpd,pmdps)		\
 	do {				\
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/include/asm/pgtable-3level.h linux-libre-4.4.107-gnu/arch/arm/include/asm/pgtable-3level.h
--- linux-libre-4.4-gnu/arch/arm/include/asm/pgtable-3level.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/include/asm/pgtable-3level.h	2017-12-20 04:05:01.000000000 -0500
@@ -212,6 +212,7 @@ static inline pmd_t *pmd_offset(pud_t *p
 						: !!(pmd_val(pmd) & (val)))
 #define pmd_isclear(pmd, val)	(!(pmd_val(pmd) & (val)))
 
+#define pmd_present(pmd)	(pmd_isset((pmd), L_PMD_SECT_VALID))
 #define pmd_young(pmd)		(pmd_isset((pmd), PMD_SECT_AF))
 #define pte_special(pte)	(pte_isset((pte), L_PTE_SPECIAL))
 static inline pte_t pte_mkspecial(pte_t pte)
@@ -257,10 +258,10 @@ PMD_BIT_FUNC(mkyoung,   |= PMD_SECT_AF);
 #define pfn_pmd(pfn,prot)	(__pmd(((phys_addr_t)(pfn) << PAGE_SHIFT) | pgprot_val(prot)))
 #define mk_pmd(page,prot)	pfn_pmd(page_to_pfn(page),prot)
 
-/* represent a notpresent pmd by zero, this is used by pmdp_invalidate */
+/* represent a notpresent pmd by faulting entry, this is used by pmdp_invalidate */
 static inline pmd_t pmd_mknotpresent(pmd_t pmd)
 {
-	return __pmd(0);
+	return __pmd(pmd_val(pmd) & ~L_PMD_SECT_VALID);
 }
 
 static inline pmd_t pmd_modify(pmd_t pmd, pgprot_t newprot)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/include/asm/pgtable.h linux-libre-4.4.107-gnu/arch/arm/include/asm/pgtable.h
--- linux-libre-4.4-gnu/arch/arm/include/asm/pgtable.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/include/asm/pgtable.h	2017-12-20 04:05:01.000000000 -0500
@@ -182,7 +182,6 @@ extern pgd_t swapper_pg_dir[PTRS_PER_PGD
 #define pgd_offset_k(addr)	pgd_offset(&init_mm, addr)
 
 #define pmd_none(pmd)		(!pmd_val(pmd))
-#define pmd_present(pmd)	(pmd_val(pmd))
 
 static inline pte_t *pmd_page_vaddr(pmd_t pmd)
 {
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/include/asm/psci.h linux-libre-4.4.107-gnu/arch/arm/include/asm/psci.h
--- linux-libre-4.4-gnu/arch/arm/include/asm/psci.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/include/asm/psci.h	2017-12-20 04:05:01.000000000 -0500
@@ -16,7 +16,7 @@
 
 extern struct smp_operations psci_smp_ops;
 
-#ifdef CONFIG_ARM_PSCI
+#if defined(CONFIG_SMP) && defined(CONFIG_ARM_PSCI)
 bool psci_smp_available(void);
 #else
 static inline bool psci_smp_available(void) { return false; }
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/include/asm/unaligned.h linux-libre-4.4.107-gnu/arch/arm/include/asm/unaligned.h
--- linux-libre-4.4-gnu/arch/arm/include/asm/unaligned.h	1969-12-31 19:00:00.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/include/asm/unaligned.h	2017-12-20 04:05:01.000000000 -0500
@@ -0,0 +1,27 @@
+#ifndef __ASM_ARM_UNALIGNED_H
+#define __ASM_ARM_UNALIGNED_H
+
+/*
+ * We generally want to set CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS on ARMv6+,
+ * but we don't want to use linux/unaligned/access_ok.h since that can lead
+ * to traps on unaligned stm/ldm or strd/ldrd.
+ */
+#include <asm/byteorder.h>
+
+#if defined(__LITTLE_ENDIAN)
+# include <linux/unaligned/le_struct.h>
+# include <linux/unaligned/be_byteshift.h>
+# include <linux/unaligned/generic.h>
+# define get_unaligned	__get_unaligned_le
+# define put_unaligned	__put_unaligned_le
+#elif defined(__BIG_ENDIAN)
+# include <linux/unaligned/be_struct.h>
+# include <linux/unaligned/le_byteshift.h>
+# include <linux/unaligned/generic.h>
+# define get_unaligned	__get_unaligned_be
+# define put_unaligned	__put_unaligned_be
+#else
+# error need to define endianess
+#endif
+
+#endif /* __ASM_ARM_UNALIGNED_H */
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/include/asm/xen/page-coherent.h linux-libre-4.4.107-gnu/arch/arm/include/asm/xen/page-coherent.h
--- linux-libre-4.4-gnu/arch/arm/include/asm/xen/page-coherent.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/include/asm/xen/page-coherent.h	2017-12-20 04:05:01.000000000 -0500
@@ -35,14 +35,21 @@ static inline void xen_dma_map_page(stru
 	     dma_addr_t dev_addr, unsigned long offset, size_t size,
 	     enum dma_data_direction dir, struct dma_attrs *attrs)
 {
-	bool local = XEN_PFN_DOWN(dev_addr) == page_to_xen_pfn(page);
+	unsigned long page_pfn = page_to_xen_pfn(page);
+	unsigned long dev_pfn = XEN_PFN_DOWN(dev_addr);
+	unsigned long compound_pages =
+		(1<<compound_order(page)) * XEN_PFN_PER_PAGE;
+	bool local = (page_pfn <= dev_pfn) &&
+		(dev_pfn - page_pfn < compound_pages);
+
 	/*
-	 * Dom0 is mapped 1:1, while the Linux page can be spanned accross
-	 * multiple Xen page, it's not possible to have a mix of local and
-	 * foreign Xen page. So if the first xen_pfn == mfn the page is local
-	 * otherwise it's a foreign page grant-mapped in dom0. If the page is
-	 * local we can safely call the native dma_ops function, otherwise we
-	 * call the xen specific function.
+	 * Dom0 is mapped 1:1, while the Linux page can span across
+	 * multiple Xen pages, it's not possible for it to contain a
+	 * mix of local and foreign Xen pages. So if the first xen_pfn
+	 * == mfn the page is local otherwise it's a foreign page
+	 * grant-mapped in dom0. If the page is local we can safely
+	 * call the native dma_ops function, otherwise we call the xen
+	 * specific function.
 	 */
 	if (local)
 		__generic_dma_ops(hwdev)->map_page(hwdev, page, offset, size, dir, attrs);
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/Kconfig.debug linux-libre-4.4.107-gnu/arch/arm/Kconfig.debug
--- linux-libre-4.4-gnu/arch/arm/Kconfig.debug	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/Kconfig.debug	2017-12-20 04:05:01.000000000 -0500
@@ -162,10 +162,9 @@ choice
 		  mobile SoCs in the Kona family of chips (e.g. bcm28155,
 		  bcm11351, etc...)
 
-	config DEBUG_BCM63XX
+	config DEBUG_BCM63XX_UART
 		bool "Kernel low-level debugging on BCM63XX UART"
 		depends on ARCH_BCM_63XX
-		select DEBUG_UART_BCM63XX
 
 	config DEBUG_BERLIN_UART
 		bool "Marvell Berlin SoC Debug UART"
@@ -1348,7 +1347,7 @@ config DEBUG_LL_INCLUDE
 	default "debug/vf.S" if DEBUG_VF_UART
 	default "debug/vt8500.S" if DEBUG_VT8500_UART0
 	default "debug/zynq.S" if DEBUG_ZYNQ_UART0 || DEBUG_ZYNQ_UART1
-	default "debug/bcm63xx.S" if DEBUG_UART_BCM63XX
+	default "debug/bcm63xx.S" if DEBUG_BCM63XX_UART
 	default "debug/digicolor.S" if DEBUG_DIGICOLOR_UA0
 	default "mach/debug-macro.S"
 
@@ -1364,10 +1363,6 @@ config DEBUG_UART_8250
 		ARCH_IOP33X || ARCH_IXP4XX || \
 		ARCH_LPC32XX || ARCH_MV78XX0 || ARCH_ORION5X || ARCH_RPC
 
-# Compatibility options for BCM63xx
-config DEBUG_UART_BCM63XX
-	def_bool ARCH_BCM_63XX
-
 config DEBUG_UART_PHYS
 	hex "Physical base address of debug UART"
 	default 0x00100a00 if DEBUG_NETX_UART
@@ -1462,7 +1457,7 @@ config DEBUG_UART_PHYS
 	default 0xfffb0000 if DEBUG_OMAP1UART1 || DEBUG_OMAP7XXUART1
 	default 0xfffb0800 if DEBUG_OMAP1UART2 || DEBUG_OMAP7XXUART2
 	default 0xfffb9800 if DEBUG_OMAP1UART3 || DEBUG_OMAP7XXUART3
-	default 0xfffe8600 if DEBUG_UART_BCM63XX
+	default 0xfffe8600 if DEBUG_BCM63XX_UART
 	default 0xfffff700 if ARCH_IOP33X
 	depends on ARCH_EP93XX || \
 	        DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
@@ -1474,7 +1469,7 @@ config DEBUG_UART_PHYS
 		DEBUG_RCAR_GEN2_SCIF0 || DEBUG_RCAR_GEN2_SCIF2 || \
 		DEBUG_RMOBILE_SCIFA0 || DEBUG_RMOBILE_SCIFA1 || \
 		DEBUG_RMOBILE_SCIFA4 || DEBUG_S3C24XX_UART || \
-		DEBUG_UART_BCM63XX || DEBUG_ASM9260_UART || \
+		DEBUG_BCM63XX_UART || DEBUG_ASM9260_UART || \
 		DEBUG_SIRFSOC_UART || DEBUG_DIGICOLOR_UA0 || \
 		DEBUG_AT91_UART
 
@@ -1515,7 +1510,7 @@ config DEBUG_UART_VIRT
 	default 0xfb10c000 if DEBUG_REALVIEW_PB1176_PORT
 	default 0xfc40ab00 if DEBUG_BRCMSTB_UART
 	default 0xfc705000 if DEBUG_ZTE_ZX
-	default 0xfcfe8600 if DEBUG_UART_BCM63XX
+	default 0xfcfe8600 if DEBUG_BCM63XX_UART
 	default 0xfd000000 if ARCH_SPEAR3XX || ARCH_SPEAR6XX
 	default 0xfd000000 if ARCH_SPEAR13XX
 	default 0xfd012000 if ARCH_MV78XX0
@@ -1566,7 +1561,7 @@ config DEBUG_UART_VIRT
 		DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \
 		DEBUG_NETX_UART || \
 		DEBUG_QCOM_UARTDM || DEBUG_S3C24XX_UART || \
-		DEBUG_UART_BCM63XX || DEBUG_ASM9260_UART || \
+		DEBUG_BCM63XX_UART || DEBUG_ASM9260_UART || \
 		DEBUG_SIRFSOC_UART || DEBUG_DIGICOLOR_UA0
 
 config DEBUG_UART_8250_SHIFT
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/Kconfig-nommu linux-libre-4.4.107-gnu/arch/arm/Kconfig-nommu
--- linux-libre-4.4-gnu/arch/arm/Kconfig-nommu	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/Kconfig-nommu	2017-12-20 04:05:01.000000000 -0500
@@ -34,8 +34,7 @@ config PROCESSOR_ID
 	  used instead of the auto-probing which utilizes the register.
 
 config REMAP_VECTORS_TO_RAM
-	bool 'Install vectors to the beginning of RAM' if DRAM_BASE
-	depends on DRAM_BASE
+	bool 'Install vectors to the beginning of RAM'
 	help
 	  The kernel needs to change the hardware exception vectors.
 	  In nommu mode, the hardware exception vectors are normally
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/kernel/devtree.c linux-libre-4.4.107-gnu/arch/arm/kernel/devtree.c
--- linux-libre-4.4-gnu/arch/arm/kernel/devtree.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/kernel/devtree.c	2017-12-20 04:05:01.000000000 -0500
@@ -87,6 +87,8 @@ void __init arm_dt_init_cpu_maps(void)
 		return;
 
 	for_each_child_of_node(cpus, cpu) {
+		const __be32 *cell;
+		int prop_bytes;
 		u32 hwid;
 
 		if (of_node_cmp(cpu->type, "cpu"))
@@ -98,7 +100,8 @@ void __init arm_dt_init_cpu_maps(void)
 		 * properties is considered invalid to build the
 		 * cpu_logical_map.
 		 */
-		if (of_property_read_u32(cpu, "reg", &hwid)) {
+		cell = of_get_property(cpu, "reg", &prop_bytes);
+		if (!cell || prop_bytes < sizeof(*cell)) {
 			pr_debug(" * %s missing reg property\n",
 				     cpu->full_name);
 			of_node_put(cpu);
@@ -106,10 +109,15 @@ void __init arm_dt_init_cpu_maps(void)
 		}
 
 		/*
-		 * 8 MSBs must be set to 0 in the DT since the reg property
+		 * Bits n:24 must be set to 0 in the DT since the reg property
 		 * defines the MPIDR[23:0].
 		 */
-		if (hwid & ~MPIDR_HWID_BITMASK) {
+		do {
+			hwid = be32_to_cpu(*cell++);
+			prop_bytes -= sizeof(*cell);
+		} while (!hwid && prop_bytes > 0);
+
+		if (prop_bytes || (hwid & ~MPIDR_HWID_BITMASK)) {
 			of_node_put(cpu);
 			return;
 		}
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/kernel/entry-header.S linux-libre-4.4.107-gnu/arch/arm/kernel/entry-header.S
--- linux-libre-4.4-gnu/arch/arm/kernel/entry-header.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/kernel/entry-header.S	2017-12-20 04:05:01.000000000 -0500
@@ -295,6 +295,8 @@
 	mov	r2, sp
 	ldr	r1, [r2, #\offset + S_PSR]	@ get calling cpsr
 	ldr	lr, [r2, #\offset + S_PC]!	@ get pc
+	tst	r1, #PSR_I_BIT | 0x0f
+	bne	1f
 	msr	spsr_cxsf, r1			@ save in spsr_svc
 #if defined(CONFIG_CPU_V6) || defined(CONFIG_CPU_32v6K)
 	@ We must avoid clrex due to Cortex-A15 erratum #830321
@@ -309,6 +311,7 @@
 						@ after ldm {}^
 	add	sp, sp, #\offset + S_FRAME_SIZE
 	movs	pc, lr				@ return & move spsr_svc into cpsr
+1:	bug	"Returning to usermode but unexpected PSR bits set?", \@
 #elif defined(CONFIG_CPU_V7M)
 	@ V7M restore.
 	@ Note that we don't need to do clrex here as clearing the local
@@ -324,6 +327,8 @@
 	ldr	r1, [sp, #\offset + S_PSR]	@ get calling cpsr
 	ldr	lr, [sp, #\offset + S_PC]	@ get pc
 	add	sp, sp, #\offset + S_SP
+	tst	r1, #PSR_I_BIT | 0x0f
+	bne	1f
 	msr	spsr_cxsf, r1			@ save in spsr_svc
 
 	@ We must avoid clrex due to Cortex-A15 erratum #830321
@@ -336,6 +341,7 @@
 	.endif
 	add	sp, sp, #S_FRAME_SIZE - S_SP
 	movs	pc, lr				@ return & move spsr_svc into cpsr
+1:	bug	"Returning to usermode but unexpected PSR bits set?", \@
 #endif	/* !CONFIG_THUMB2_KERNEL */
 	.endm
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/kernel/hw_breakpoint.c linux-libre-4.4.107-gnu/arch/arm/kernel/hw_breakpoint.c
--- linux-libre-4.4-gnu/arch/arm/kernel/hw_breakpoint.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/kernel/hw_breakpoint.c	2017-12-20 04:05:01.000000000 -0500
@@ -1066,6 +1066,22 @@ static int __init arch_hw_breakpoint_ini
 		return 0;
 	}
 
+	/*
+	 * Scorpion CPUs (at least those in APQ8060) seem to set DBGPRSR.SPD
+	 * whenever a WFI is issued, even if the core is not powered down, in
+	 * violation of the architecture.  When DBGPRSR.SPD is set, accesses to
+	 * breakpoint and watchpoint registers are treated as undefined, so
+	 * this results in boot time and runtime failures when these are
+	 * accessed and we unexpectedly take a trap.
+	 *
+	 * It's not clear if/how this can be worked around, so we blacklist
+	 * Scorpion CPUs to avoid these issues.
+	*/
+	if (read_cpuid_part() == ARM_CPU_PART_SCORPION) {
+		pr_info("Scorpion CPU detected. Hardware breakpoints and watchpoints disabled\n");
+		return 0;
+	}
+
 	has_ossr = core_has_os_save_restore();
 
 	/* Determine how many BRPs/WRPs are available. */
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/kernel/Makefile linux-libre-4.4.107-gnu/arch/arm/kernel/Makefile
--- linux-libre-4.4-gnu/arch/arm/kernel/Makefile	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/kernel/Makefile	2017-12-20 04:05:01.000000000 -0500
@@ -73,7 +73,6 @@ obj-$(CONFIG_IWMMXT)		+= iwmmxt.o
 obj-$(CONFIG_PERF_EVENTS)	+= perf_regs.o perf_callchain.o
 obj-$(CONFIG_HW_PERF_EVENTS)	+= perf_event_xscale.o perf_event_v6.o \
 				   perf_event_v7.o
-CFLAGS_pj4-cp0.o		:= -marm
 AFLAGS_iwmmxt.o			:= -Wa,-mcpu=iwmmxt
 obj-$(CONFIG_ARM_CPU_TOPOLOGY)  += topology.o
 obj-$(CONFIG_VDSO)		+= vdso.o
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/kernel/pj4-cp0.c linux-libre-4.4.107-gnu/arch/arm/kernel/pj4-cp0.c
--- linux-libre-4.4-gnu/arch/arm/kernel/pj4-cp0.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/kernel/pj4-cp0.c	2017-12-20 04:05:01.000000000 -0500
@@ -66,9 +66,13 @@ static void __init pj4_cp_access_write(u
 
 	__asm__ __volatile__ (
 		"mcr	p15, 0, %1, c1, c0, 2\n\t"
+#ifdef CONFIG_THUMB2_KERNEL
+		"isb\n\t"
+#else
 		"mrc	p15, 0, %0, c1, c0, 2\n\t"
 		"mov	%0, %0\n\t"
 		"sub	pc, pc, #4\n\t"
+#endif
 		: "=r" (temp) : "r" (value));
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/kernel/ptrace.c linux-libre-4.4.107-gnu/arch/arm/kernel/ptrace.c
--- linux-libre-4.4-gnu/arch/arm/kernel/ptrace.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/kernel/ptrace.c	2017-12-20 04:05:01.000000000 -0500
@@ -600,7 +600,7 @@ static int gpr_set(struct task_struct *t
 		   const void *kbuf, const void __user *ubuf)
 {
 	int ret;
-	struct pt_regs newregs;
+	struct pt_regs newregs = *task_pt_regs(target);
 
 	ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
 				 &newregs,
@@ -733,8 +733,8 @@ static int vfp_set(struct task_struct *t
 	if (ret)
 		return ret;
 
-	vfp_flush_hwstate(thread);
 	thread->vfpstate.hard = new_vfp;
+	vfp_flush_hwstate(thread);
 
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/kernel/smp_tlb.c linux-libre-4.4.107-gnu/arch/arm/kernel/smp_tlb.c
--- linux-libre-4.4-gnu/arch/arm/kernel/smp_tlb.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/kernel/smp_tlb.c	2017-12-20 04:05:01.000000000 -0500
@@ -9,6 +9,7 @@
  */
 #include <linux/preempt.h>
 #include <linux/smp.h>
+#include <linux/uaccess.h>
 
 #include <asm/smp_plat.h>
 #include <asm/tlbflush.h>
@@ -40,8 +41,11 @@ static inline void ipi_flush_tlb_mm(void
 static inline void ipi_flush_tlb_page(void *arg)
 {
 	struct tlb_args *ta = (struct tlb_args *)arg;
+	unsigned int __ua_flags = uaccess_save_and_enable();
 
 	local_flush_tlb_page(ta->ta_vma, ta->ta_start);
+
+	uaccess_restore(__ua_flags);
 }
 
 static inline void ipi_flush_tlb_kernel_page(void *arg)
@@ -54,8 +58,11 @@ static inline void ipi_flush_tlb_kernel_
 static inline void ipi_flush_tlb_range(void *arg)
 {
 	struct tlb_args *ta = (struct tlb_args *)arg;
+	unsigned int __ua_flags = uaccess_save_and_enable();
 
 	local_flush_tlb_range(ta->ta_vma, ta->ta_start, ta->ta_end);
+
+	uaccess_restore(__ua_flags);
 }
 
 static inline void ipi_flush_tlb_kernel_range(void *arg)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/kernel/sys_oabi-compat.c linux-libre-4.4.107-gnu/arch/arm/kernel/sys_oabi-compat.c
--- linux-libre-4.4-gnu/arch/arm/kernel/sys_oabi-compat.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/kernel/sys_oabi-compat.c	2017-12-20 04:05:01.000000000 -0500
@@ -279,8 +279,12 @@ asmlinkage long sys_oabi_epoll_wait(int
 	mm_segment_t fs;
 	long ret, err, i;
 
-	if (maxevents <= 0 || maxevents > (INT_MAX/sizeof(struct epoll_event)))
+	if (maxevents <= 0 ||
+			maxevents > (INT_MAX/sizeof(*kbuf)) ||
+			maxevents > (INT_MAX/sizeof(*events)))
 		return -EINVAL;
+	if (!access_ok(VERIFY_WRITE, events, sizeof(*events) * maxevents))
+		return -EFAULT;
 	kbuf = kmalloc(sizeof(*kbuf) * maxevents, GFP_KERNEL);
 	if (!kbuf)
 		return -ENOMEM;
@@ -317,6 +321,8 @@ asmlinkage long sys_oabi_semtimedop(int
 
 	if (nsops < 1 || nsops > SEMOPM)
 		return -EINVAL;
+	if (!access_ok(VERIFY_READ, tsops, sizeof(*tsops) * nsops))
+		return -EFAULT;
 	sops = kmalloc(sizeof(*sops) * nsops, GFP_KERNEL);
 	if (!sops)
 		return -ENOMEM;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/kernel/traps.c linux-libre-4.4.107-gnu/arch/arm/kernel/traps.c
--- linux-libre-4.4-gnu/arch/arm/kernel/traps.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/kernel/traps.c	2017-12-20 04:05:01.000000000 -0500
@@ -132,30 +132,26 @@ static void dump_mem(const char *lvl, co
 	set_fs(fs);
 }
 
-static void dump_instr(const char *lvl, struct pt_regs *regs)
+static void __dump_instr(const char *lvl, struct pt_regs *regs)
 {
 	unsigned long addr = instruction_pointer(regs);
 	const int thumb = thumb_mode(regs);
 	const int width = thumb ? 4 : 8;
-	mm_segment_t fs;
 	char str[sizeof("00000000 ") * 5 + 2 + 1], *p = str;
 	int i;
 
 	/*
-	 * We need to switch to kernel mode so that we can use __get_user
-	 * to safely read from kernel space.  Note that we now dump the
-	 * code first, just in case the backtrace kills us.
+	 * Note that we now dump the code first, just in case the backtrace
+	 * kills us.
 	 */
-	fs = get_fs();
-	set_fs(KERNEL_DS);
 
 	for (i = -4; i < 1 + !!thumb; i++) {
 		unsigned int val, bad;
 
 		if (thumb)
-			bad = __get_user(val, &((u16 *)addr)[i]);
+			bad = get_user(val, &((u16 *)addr)[i]);
 		else
-			bad = __get_user(val, &((u32 *)addr)[i]);
+			bad = get_user(val, &((u32 *)addr)[i]);
 
 		if (!bad)
 			p += sprintf(p, i == 0 ? "(%0*x) " : "%0*x ",
@@ -166,8 +162,20 @@ static void dump_instr(const char *lvl,
 		}
 	}
 	printk("%sCode: %s\n", lvl, str);
+}
 
-	set_fs(fs);
+static void dump_instr(const char *lvl, struct pt_regs *regs)
+{
+	mm_segment_t fs;
+
+	if (!user_mode(regs)) {
+		fs = get_fs();
+		set_fs(KERNEL_DS);
+		__dump_instr(lvl, regs);
+		set_fs(fs);
+	} else {
+		__dump_instr(lvl, regs);
+	}
 }
 
 #ifdef CONFIG_ARM_UNWIND
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/kvm/arm.c linux-libre-4.4.107-gnu/arch/arm/kvm/arm.c
--- linux-libre-4.4-gnu/arch/arm/kvm/arm.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/kvm/arm.c	2017-12-20 04:05:01.000000000 -0500
@@ -155,8 +155,6 @@ void kvm_arch_destroy_vm(struct kvm *kvm
 {
 	int i;
 
-	kvm_free_stage2_pgd(kvm);
-
 	for (i = 0; i < KVM_MAX_VCPUS; ++i) {
 		if (kvm->vcpus[i]) {
 			kvm_arch_vcpu_free(kvm->vcpus[i]);
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/kvm/guest.c linux-libre-4.4.107-gnu/arch/arm/kvm/guest.c
--- linux-libre-4.4-gnu/arch/arm/kvm/guest.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/kvm/guest.c	2017-12-20 04:05:01.000000000 -0500
@@ -155,7 +155,7 @@ static int get_timer_reg(struct kvm_vcpu
 	u64 val;
 
 	val = kvm_arm_timer_get_reg(vcpu, reg->id);
-	return copy_to_user(uaddr, &val, KVM_REG_SIZE(reg->id));
+	return copy_to_user(uaddr, &val, KVM_REG_SIZE(reg->id)) ? -EFAULT : 0;
 }
 
 static unsigned long num_core_regs(void)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/kvm/handle_exit.c linux-libre-4.4.107-gnu/arch/arm/kvm/handle_exit.c
--- linux-libre-4.4-gnu/arch/arm/kvm/handle_exit.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/kvm/handle_exit.c	2017-12-20 04:05:01.000000000 -0500
@@ -100,7 +100,19 @@ static int kvm_handle_wfx(struct kvm_vcp
 	return 1;
 }
 
+static int kvm_handle_unknown_ec(struct kvm_vcpu *vcpu, struct kvm_run *run)
+{
+	u32 hsr = kvm_vcpu_get_hsr(vcpu);
+
+	kvm_pr_unimpl("Unknown exception class: hsr: %#08x\n",
+		      hsr);
+
+	kvm_inject_undefined(vcpu);
+	return 1;
+}
+
 static exit_handle_fn arm_exit_handlers[] = {
+	[0 ... HSR_EC_MAX]	= kvm_handle_unknown_ec,
 	[HSR_EC_WFI]		= kvm_handle_wfx,
 	[HSR_EC_CP15_32]	= kvm_handle_cp15_32,
 	[HSR_EC_CP15_64]	= kvm_handle_cp15_64,
@@ -122,13 +134,6 @@ static exit_handle_fn kvm_get_exit_handl
 {
 	u8 hsr_ec = kvm_vcpu_trap_get_class(vcpu);
 
-	if (hsr_ec >= ARRAY_SIZE(arm_exit_handlers) ||
-	    !arm_exit_handlers[hsr_ec]) {
-		kvm_err("Unknown exception class: hsr: %#08x\n",
-			(unsigned int)kvm_vcpu_get_hsr(vcpu));
-		BUG();
-	}
-
 	return arm_exit_handlers[hsr_ec];
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/kvm/init.S linux-libre-4.4.107-gnu/arch/arm/kvm/init.S
--- linux-libre-4.4-gnu/arch/arm/kvm/init.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/kvm/init.S	2017-12-20 04:05:01.000000000 -0500
@@ -110,7 +110,6 @@ __do_hyp_init:
 	@  - Write permission implies XN: disabled
 	@  - Instruction cache: enabled
 	@  - Data/Unified cache: enabled
-	@  - Memory alignment checks: enabled
 	@  - MMU: enabled (this code must be run from an identity mapping)
 	mrc	p15, 4, r0, c1, c0, 0	@ HSCR
 	ldr	r2, =HSCTLR_MASK
@@ -118,8 +117,8 @@ __do_hyp_init:
 	mrc	p15, 0, r1, c1, c0, 0	@ SCTLR
 	ldr	r2, =(HSCTLR_EE | HSCTLR_FI | HSCTLR_I | HSCTLR_C)
 	and	r1, r1, r2
- ARM(	ldr	r2, =(HSCTLR_M | HSCTLR_A)			)
- THUMB(	ldr	r2, =(HSCTLR_M | HSCTLR_A | HSCTLR_TE)		)
+ ARM(	ldr	r2, =(HSCTLR_M)					)
+ THUMB(	ldr	r2, =(HSCTLR_M | HSCTLR_TE)			)
 	orr	r1, r1, r2
 	orr	r0, r0, r1
 	isb
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/kvm/mmu.c linux-libre-4.4.107-gnu/arch/arm/kvm/mmu.c
--- linux-libre-4.4-gnu/arch/arm/kvm/mmu.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/kvm/mmu.c	2017-12-20 04:05:01.000000000 -0500
@@ -300,6 +300,14 @@ static void unmap_range(struct kvm *kvm,
 		next = kvm_pgd_addr_end(addr, end);
 		if (!pgd_none(*pgd))
 			unmap_puds(kvm, pgd, addr, next);
+		/*
+		 * If we are dealing with a large range in
+		 * stage2 table, release the kvm->mmu_lock
+		 * to prevent starvation and lockup detector
+		 * warnings.
+		 */
+		if (kvm && (next != end))
+			cond_resched_lock(&kvm->mmu_lock);
 	} while (pgd++, addr = next, addr != end);
 }
 
@@ -738,6 +746,7 @@ int kvm_alloc_stage2_pgd(struct kvm *kvm
  */
 static void unmap_stage2_range(struct kvm *kvm, phys_addr_t start, u64 size)
 {
+	assert_spin_locked(&kvm->mmu_lock);
 	unmap_range(kvm, kvm->arch.pgd, start, size);
 }
 
@@ -796,6 +805,7 @@ void stage2_unmap_vm(struct kvm *kvm)
 	int idx;
 
 	idx = srcu_read_lock(&kvm->srcu);
+	down_read(&current->mm->mmap_sem);
 	spin_lock(&kvm->mmu_lock);
 
 	slots = kvm_memslots(kvm);
@@ -803,6 +813,7 @@ void stage2_unmap_vm(struct kvm *kvm)
 		stage2_unmap_memslot(kvm, memslot);
 
 	spin_unlock(&kvm->mmu_lock);
+	up_read(&current->mm->mmap_sem);
 	srcu_read_unlock(&kvm->srcu, idx);
 }
 
@@ -813,21 +824,25 @@ void stage2_unmap_vm(struct kvm *kvm)
  * Walks the level-1 page table pointed to by kvm->arch.pgd and frees all
  * underlying level-2 and level-3 tables before freeing the actual level-1 table
  * and setting the struct pointer to NULL.
- *
- * Note we don't need locking here as this is only called when the VM is
- * destroyed, which can only be done once.
  */
 void kvm_free_stage2_pgd(struct kvm *kvm)
 {
-	if (kvm->arch.pgd == NULL)
-		return;
+	void *pgd = NULL;
+	void *hwpgd = NULL;
 
-	unmap_stage2_range(kvm, 0, KVM_PHYS_SIZE);
-	kvm_free_hwpgd(kvm_get_hwpgd(kvm));
-	if (KVM_PREALLOC_LEVEL > 0)
-		kfree(kvm->arch.pgd);
+	spin_lock(&kvm->mmu_lock);
+	if (kvm->arch.pgd) {
+		unmap_stage2_range(kvm, 0, KVM_PHYS_SIZE);
+		pgd = READ_ONCE(kvm->arch.pgd);
+		hwpgd = kvm_get_hwpgd(kvm);
+		kvm->arch.pgd = NULL;
+	}
+	spin_unlock(&kvm->mmu_lock);
 
-	kvm->arch.pgd = NULL;
+	if (hwpgd)
+		kvm_free_hwpgd(hwpgd);
+	if (KVM_PREALLOC_LEVEL > 0 && pgd)
+		kfree(pgd);
 }
 
 static pud_t *stage2_get_pud(struct kvm *kvm, struct kvm_mmu_memory_cache *cache,
@@ -855,6 +870,9 @@ static pmd_t *stage2_get_pmd(struct kvm
 	pmd_t *pmd;
 
 	pud = stage2_get_pud(kvm, cache, addr);
+	if (!pud)
+		return NULL;
+
 	if (pud_none(*pud)) {
 		if (!cache)
 			return NULL;
@@ -886,11 +904,14 @@ static int stage2_set_pmd_huge(struct kv
 	VM_BUG_ON(pmd_present(*pmd) && pmd_pfn(*pmd) != pmd_pfn(*new_pmd));
 
 	old_pmd = *pmd;
-	kvm_set_pmd(pmd, *new_pmd);
-	if (pmd_present(old_pmd))
+	if (pmd_present(old_pmd)) {
+		pmd_clear(pmd);
 		kvm_tlb_flush_vmid_ipa(kvm, addr);
-	else
+	} else {
 		get_page(virt_to_page(pmd));
+	}
+
+	kvm_set_pmd(pmd, *new_pmd);
 	return 0;
 }
 
@@ -939,12 +960,14 @@ static int stage2_set_pte(struct kvm *kv
 
 	/* Create 2nd stage page table mapping - Level 3 */
 	old_pte = *pte;
-	kvm_set_pte(pte, *new_pte);
-	if (pte_present(old_pte))
+	if (pte_present(old_pte)) {
+		kvm_set_pte(pte, __pte(0));
 		kvm_tlb_flush_vmid_ipa(kvm, addr);
-	else
+	} else {
 		get_page(virt_to_page(pte));
+	}
 
+	kvm_set_pte(pte, *new_pte);
 	return 0;
 }
 
@@ -1607,12 +1630,16 @@ static int kvm_test_age_hva_handler(stru
 
 int kvm_age_hva(struct kvm *kvm, unsigned long start, unsigned long end)
 {
+	if (!kvm->arch.pgd)
+		return 0;
 	trace_kvm_age_hva(start, end);
 	return handle_hva_to_gpa(kvm, start, end, kvm_age_hva_handler, NULL);
 }
 
 int kvm_test_age_hva(struct kvm *kvm, unsigned long hva)
 {
+	if (!kvm->arch.pgd)
+		return 0;
 	trace_kvm_test_age_hva(hva);
 	return handle_hva_to_gpa(kvm, hva, hva, kvm_test_age_hva_handler, NULL);
 }
@@ -1754,6 +1781,7 @@ int kvm_arch_prepare_memory_region(struc
 	    (KVM_PHYS_SIZE >> PAGE_SHIFT))
 		return -EFAULT;
 
+	down_read(&current->mm->mmap_sem);
 	/*
 	 * A memory region could potentially cover multiple VMAs, and any holes
 	 * between them, so iterate over all of them to find out if we can map
@@ -1797,8 +1825,10 @@ int kvm_arch_prepare_memory_region(struc
 			pa += vm_start - vma->vm_start;
 
 			/* IO region dirty page logging not allowed */
-			if (memslot->flags & KVM_MEM_LOG_DIRTY_PAGES)
-				return -EINVAL;
+			if (memslot->flags & KVM_MEM_LOG_DIRTY_PAGES) {
+				ret = -EINVAL;
+				goto out;
+			}
 
 			ret = kvm_phys_addr_ioremap(kvm, gpa, pa,
 						    vm_end - vm_start,
@@ -1810,7 +1840,7 @@ int kvm_arch_prepare_memory_region(struc
 	} while (hva < reg_end);
 
 	if (change == KVM_MR_FLAGS_ONLY)
-		return ret;
+		goto out;
 
 	spin_lock(&kvm->mmu_lock);
 	if (ret)
@@ -1818,6 +1848,8 @@ int kvm_arch_prepare_memory_region(struc
 	else
 		stage2_flush_memslot(kvm, memslot);
 	spin_unlock(&kvm->mmu_lock);
+out:
+	up_read(&current->mm->mmap_sem);
 	return ret;
 }
 
@@ -1847,6 +1879,7 @@ void kvm_arch_memslots_updated(struct kv
 
 void kvm_arch_flush_shadow_all(struct kvm *kvm)
 {
+	kvm_free_stage2_pgd(kvm);
 }
 
 void kvm_arch_flush_shadow_memslot(struct kvm *kvm,
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/kvm/psci.c linux-libre-4.4.107-gnu/arch/arm/kvm/psci.c
--- linux-libre-4.4-gnu/arch/arm/kvm/psci.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/kvm/psci.c	2017-12-20 04:05:01.000000000 -0500
@@ -208,9 +208,10 @@ int kvm_psci_version(struct kvm_vcpu *vc
 
 static int kvm_psci_0_2_call(struct kvm_vcpu *vcpu)
 {
-	int ret = 1;
+	struct kvm *kvm = vcpu->kvm;
 	unsigned long psci_fn = vcpu_get_reg(vcpu, 0) & ~((u32) 0);
 	unsigned long val;
+	int ret = 1;
 
 	switch (psci_fn) {
 	case PSCI_0_2_FN_PSCI_VERSION:
@@ -230,7 +231,9 @@ static int kvm_psci_0_2_call(struct kvm_
 		break;
 	case PSCI_0_2_FN_CPU_ON:
 	case PSCI_0_2_FN64_CPU_ON:
+		mutex_lock(&kvm->lock);
 		val = kvm_psci_vcpu_on(vcpu);
+		mutex_unlock(&kvm->lock);
 		break;
 	case PSCI_0_2_FN_AFFINITY_INFO:
 	case PSCI_0_2_FN64_AFFINITY_INFO:
@@ -279,6 +282,7 @@ static int kvm_psci_0_2_call(struct kvm_
 
 static int kvm_psci_0_1_call(struct kvm_vcpu *vcpu)
 {
+	struct kvm *kvm = vcpu->kvm;
 	unsigned long psci_fn = vcpu_get_reg(vcpu, 0) & ~((u32) 0);
 	unsigned long val;
 
@@ -288,7 +292,9 @@ static int kvm_psci_0_1_call(struct kvm_
 		val = PSCI_RET_SUCCESS;
 		break;
 	case KVM_PSCI_FN_CPU_ON:
+		mutex_lock(&kvm->lock);
 		val = kvm_psci_vcpu_on(vcpu);
+		mutex_unlock(&kvm->lock);
 		break;
 	default:
 		val = PSCI_RET_NOT_SUPPORTED;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/lib/getuser.S linux-libre-4.4.107-gnu/arch/arm/lib/getuser.S
--- linux-libre-4.4-gnu/arch/arm/lib/getuser.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/lib/getuser.S	2017-12-20 04:05:01.000000000 -0500
@@ -67,7 +67,7 @@ ENTRY(__get_user_4)
 ENDPROC(__get_user_4)
 
 ENTRY(__get_user_8)
-	check_uaccess r0, 8, r1, r2, __get_user_bad
+	check_uaccess r0, 8, r1, r2, __get_user_bad8
 #ifdef CONFIG_THUMB2_KERNEL
 5: TUSER(ldr)	r2, [r0]
 6: TUSER(ldr)	r3, [r0, #4]
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/mach-at91/pm.c linux-libre-4.4.107-gnu/arch/arm/mach-at91/pm.c
--- linux-libre-4.4-gnu/arch/arm/mach-at91/pm.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/mach-at91/pm.c	2017-12-20 04:05:01.000000000 -0500
@@ -286,6 +286,22 @@ static void at91_ddr_standby(void)
 		at91_ramc_write(1, AT91_DDRSDRC_LPR, saved_lpr1);
 }
 
+static void sama5d3_ddr_standby(void)
+{
+	u32 lpr0;
+	u32 saved_lpr0;
+
+	saved_lpr0 = at91_ramc_read(0, AT91_DDRSDRC_LPR);
+	lpr0 = saved_lpr0 & ~AT91_DDRSDRC_LPCB;
+	lpr0 |= AT91_DDRSDRC_LPCB_POWER_DOWN;
+
+	at91_ramc_write(0, AT91_DDRSDRC_LPR, lpr0);
+
+	cpu_do_idle();
+
+	at91_ramc_write(0, AT91_DDRSDRC_LPR, saved_lpr0);
+}
+
 /* We manage both DDRAM/SDRAM controllers, we need more than one value to
  * remember.
  */
@@ -316,11 +332,11 @@ static void at91sam9_sdram_standby(void)
 		at91_ramc_write(1, AT91_SDRAMC_LPR, saved_lpr1);
 }
 
-static const struct of_device_id const ramc_ids[] __initconst = {
+static const struct of_device_id ramc_ids[] __initconst = {
 	{ .compatible = "atmel,at91rm9200-sdramc", .data = at91rm9200_standby },
 	{ .compatible = "atmel,at91sam9260-sdramc", .data = at91sam9_sdram_standby },
 	{ .compatible = "atmel,at91sam9g45-ddramc", .data = at91_ddr_standby },
-	{ .compatible = "atmel,sama5d3-ddramc", .data = at91_ddr_standby },
+	{ .compatible = "atmel,sama5d3-ddramc", .data = sama5d3_ddr_standby },
 	{ /*sentinel*/ }
 };
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/mach-bcm/bcm_kona_smc.c linux-libre-4.4.107-gnu/arch/arm/mach-bcm/bcm_kona_smc.c
--- linux-libre-4.4-gnu/arch/arm/mach-bcm/bcm_kona_smc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/mach-bcm/bcm_kona_smc.c	2017-12-20 04:05:01.000000000 -0500
@@ -33,7 +33,7 @@ struct bcm_kona_smc_data {
 	unsigned result;
 };
 
-static const struct of_device_id const bcm_kona_smc_ids[] __initconst = {
+static const struct of_device_id bcm_kona_smc_ids[] __initconst = {
 	{.compatible = "brcm,kona-smc"},
 	{.compatible = "bcm,kona-smc"}, /* deprecated name */
 	{},
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/mach-cns3xxx/core.c linux-libre-4.4.107-gnu/arch/arm/mach-cns3xxx/core.c
--- linux-libre-4.4-gnu/arch/arm/mach-cns3xxx/core.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/mach-cns3xxx/core.c	2017-12-20 04:05:01.000000000 -0500
@@ -346,7 +346,7 @@ static struct usb_ohci_pdata cns3xxx_usb
 	.power_off	= csn3xxx_usb_power_off,
 };
 
-static const struct of_dev_auxdata const cns3xxx_auxdata[] __initconst = {
+static const struct of_dev_auxdata cns3xxx_auxdata[] __initconst = {
 	{ "intel,usb-ehci", CNS3XXX_USB_BASE, "ehci-platform", &cns3xxx_usb_ehci_pdata },
 	{ "intel,usb-ohci", CNS3XXX_USB_OHCI_BASE, "ohci-platform", &cns3xxx_usb_ohci_pdata },
 	{ "cavium,cns3420-ahci", CNS3XXX_SATA2_BASE, "ahci", NULL },
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/mach-cns3xxx/pcie.c linux-libre-4.4.107-gnu/arch/arm/mach-cns3xxx/pcie.c
--- linux-libre-4.4-gnu/arch/arm/mach-cns3xxx/pcie.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/mach-cns3xxx/pcie.c	2017-12-20 04:05:01.000000000 -0500
@@ -220,13 +220,13 @@ static void cns3xxx_write_config(struct
 	u32 mask = (0x1ull << (size * 8)) - 1;
 	int shift = (where % 4) * 8;
 
-	v = readl_relaxed(base + (where & 0xffc));
+	v = readl_relaxed(base);
 
 	v &= ~(mask << shift);
 	v |= (val & mask) << shift;
 
-	writel_relaxed(v, base + (where & 0xffc));
-	readl_relaxed(base + (where & 0xffc));
+	writel_relaxed(v, base);
+	readl_relaxed(base);
 }
 
 static void __init cns3xxx_pcie_hw_init(struct cns3xxx_pcie *cnspci)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/mach-davinci/da850.c linux-libre-4.4.107-gnu/arch/arm/mach-davinci/da850.c
--- linux-libre-4.4-gnu/arch/arm/mach-davinci/da850.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/mach-davinci/da850.c	2017-12-20 04:05:01.000000000 -0500
@@ -298,6 +298,16 @@ static struct clk emac_clk = {
 	.gpsc		= 1,
 };
 
+/*
+ * In order to avoid adding the emac_clk to the clock lookup table twice (and
+ * screwing up the linked list in the process) create a separate clock for
+ * mdio inheriting the rate from emac_clk.
+ */
+static struct clk mdio_clk = {
+	.name		= "mdio",
+	.parent		= &emac_clk,
+};
+
 static struct clk mcasp_clk = {
 	.name		= "mcasp",
 	.parent		= &pll0_sysclk2,
@@ -462,7 +472,7 @@ static struct clk_lookup da850_clks[] =
 	CLK(NULL,		"arm",		&arm_clk),
 	CLK(NULL,		"rmii",		&rmii_clk),
 	CLK("davinci_emac.1",	NULL,		&emac_clk),
-	CLK("davinci_mdio.0",	"fck",		&emac_clk),
+	CLK("davinci_mdio.0",	"fck",		&mdio_clk),
 	CLK("davinci-mcasp.0",	NULL,		&mcasp_clk),
 	CLK("da8xx_lcdc.0",	"fck",		&lcdc_clk),
 	CLK("da830-mmc.0",	NULL,		&mmcsd0_clk),
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/mach-exynos/Kconfig linux-libre-4.4.107-gnu/arch/arm/mach-exynos/Kconfig
--- linux-libre-4.4-gnu/arch/arm/mach-exynos/Kconfig	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/mach-exynos/Kconfig	2017-12-20 04:05:01.000000000 -0500
@@ -26,6 +26,7 @@ menuconfig ARCH_EXYNOS
 	select S5P_DEV_MFC
 	select SRAM
 	select THERMAL
+	select THERMAL_OF
 	select MFD_SYSCON
 	help
 	  Support for SAMSUNG EXYNOS SoCs (EXYNOS4/5)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/mach-exynos/pm_domains.c linux-libre-4.4.107-gnu/arch/arm/mach-exynos/pm_domains.c
--- linux-libre-4.4-gnu/arch/arm/mach-exynos/pm_domains.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/mach-exynos/pm_domains.c	2017-12-20 04:05:01.000000000 -0500
@@ -92,7 +92,7 @@ static int exynos_pd_power(struct generi
 			if (IS_ERR(pd->clk[i]))
 				break;
 
-			if (IS_ERR(pd->clk[i]))
+			if (IS_ERR(pd->pclk[i]))
 				continue; /* Skip on first power up */
 			if (clk_set_parent(pd->clk[i], pd->pclk[i]))
 				pr_err("%s: error setting parent to clock%d\n",
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/mach-imx/mach-imx6ul.c linux-libre-4.4.107-gnu/arch/arm/mach-imx/mach-imx6ul.c
--- linux-libre-4.4-gnu/arch/arm/mach-imx/mach-imx6ul.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/mach-imx/mach-imx6ul.c	2017-12-20 04:05:01.000000000 -0500
@@ -46,7 +46,7 @@ static int ksz8081_phy_fixup(struct phy_
 static void __init imx6ul_enet_phy_init(void)
 {
 	if (IS_BUILTIN(CONFIG_PHYLIB))
-		phy_register_fixup_for_uid(PHY_ID_KSZ8081, 0xffffffff,
+		phy_register_fixup_for_uid(PHY_ID_KSZ8081, MICREL_PHY_ID_MASK,
 					   ksz8081_phy_fixup);
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/mach-imx/pm-imx6.c linux-libre-4.4.107-gnu/arch/arm/mach-imx/pm-imx6.c
--- linux-libre-4.4-gnu/arch/arm/mach-imx/pm-imx6.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/mach-imx/pm-imx6.c	2017-12-20 04:05:01.000000000 -0500
@@ -295,7 +295,7 @@ int imx6_set_lpm(enum mxc_cpu_pwr_mode m
 		val &= ~BM_CLPCR_SBYOS;
 		if (cpu_is_imx6sl())
 			val |= BM_CLPCR_BYPASS_PMIC_READY;
-		if (cpu_is_imx6sl() || cpu_is_imx6sx())
+		if (cpu_is_imx6sl() || cpu_is_imx6sx() || cpu_is_imx6ul())
 			val |= BM_CLPCR_BYP_MMDC_CH0_LPM_HS;
 		else
 			val |= BM_CLPCR_BYP_MMDC_CH1_LPM_HS;
@@ -310,7 +310,7 @@ int imx6_set_lpm(enum mxc_cpu_pwr_mode m
 		val |= 0x3 << BP_CLPCR_STBY_COUNT;
 		val |= BM_CLPCR_VSTBY;
 		val |= BM_CLPCR_SBYOS;
-		if (cpu_is_imx6sl())
+		if (cpu_is_imx6sl() || cpu_is_imx6sx())
 			val |= BM_CLPCR_BYPASS_PMIC_READY;
 		if (cpu_is_imx6sl() || cpu_is_imx6sx() || cpu_is_imx6ul())
 			val |= BM_CLPCR_BYP_MMDC_CH0_LPM_HS;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/mach-mvebu/coherency.c linux-libre-4.4.107-gnu/arch/arm/mach-mvebu/coherency.c
--- linux-libre-4.4-gnu/arch/arm/mach-mvebu/coherency.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/mach-mvebu/coherency.c	2017-12-20 04:05:01.000000000 -0500
@@ -162,22 +162,16 @@ exit:
 }
 
 /*
- * This ioremap hook is used on Armada 375/38x to ensure that PCIe
- * memory areas are mapped as MT_UNCACHED instead of MT_DEVICE. This
- * is needed as a workaround for a deadlock issue between the PCIe
- * interface and the cache controller.
+ * This ioremap hook is used on Armada 375/38x to ensure that all MMIO
+ * areas are mapped as MT_UNCACHED instead of MT_DEVICE. This is
+ * needed for the HW I/O coherency mechanism to work properly without
+ * deadlock.
  */
 static void __iomem *
-armada_pcie_wa_ioremap_caller(phys_addr_t phys_addr, size_t size,
-			      unsigned int mtype, void *caller)
+armada_wa_ioremap_caller(phys_addr_t phys_addr, size_t size,
+			 unsigned int mtype, void *caller)
 {
-	struct resource pcie_mem;
-
-	mvebu_mbus_get_pcie_mem_aperture(&pcie_mem);
-
-	if (pcie_mem.start <= phys_addr && (phys_addr + size) <= pcie_mem.end)
-		mtype = MT_UNCACHED;
-
+	mtype = MT_UNCACHED;
 	return __arm_ioremap_caller(phys_addr, size, mtype, caller);
 }
 
@@ -186,7 +180,7 @@ static void __init armada_375_380_cohere
 	struct device_node *cache_dn;
 
 	coherency_cpu_base = of_iomap(np, 0);
-	arch_ioremap_caller = armada_pcie_wa_ioremap_caller;
+	arch_ioremap_caller = armada_wa_ioremap_caller;
 
 	/*
 	 * We should switch the PL310 to I/O coherency mode only if
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/mach-omap1/dma.c linux-libre-4.4.107-gnu/arch/arm/mach-omap1/dma.c
--- linux-libre-4.4-gnu/arch/arm/mach-omap1/dma.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/mach-omap1/dma.c	2017-12-20 04:05:01.000000000 -0500
@@ -31,7 +31,6 @@
 #include "soc.h"
 
 #define OMAP1_DMA_BASE			(0xfffed800)
-#define OMAP1_LOGICAL_DMA_CH_COUNT	17
 
 static u32 enable_1510_mode;
 
@@ -311,8 +310,6 @@ static int __init omap1_system_dma_init(
 		goto exit_iounmap;
 	}
 
-	d->lch_count		= OMAP1_LOGICAL_DMA_CH_COUNT;
-
 	/* Valid attributes for omap1 plus processors */
 	if (cpu_is_omap15xx())
 		d->dev_caps = ENABLE_1510_MODE;
@@ -329,13 +326,14 @@ static int __init omap1_system_dma_init(
 	d->dev_caps		|= CLEAR_CSR_ON_READ;
 	d->dev_caps		|= IS_WORD_16;
 
-	if (cpu_is_omap15xx())
-		d->chan_count = 9;
-	else if (cpu_is_omap16xx() || cpu_is_omap7xx()) {
-		if (!(d->dev_caps & ENABLE_1510_MODE))
-			d->chan_count = 16;
+	/* available logical channels */
+	if (cpu_is_omap15xx()) {
+		d->lch_count = 9;
+	} else {
+		if (d->dev_caps & ENABLE_1510_MODE)
+			d->lch_count = 9;
 		else
-			d->chan_count = 9;
+			d->lch_count = 16;
 	}
 
 	p = dma_plat_info;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/mach-omap2/cpuidle34xx.c linux-libre-4.4.107-gnu/arch/arm/mach-omap2/cpuidle34xx.c
--- linux-libre-4.4-gnu/arch/arm/mach-omap2/cpuidle34xx.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/mach-omap2/cpuidle34xx.c	2017-12-20 04:05:01.000000000 -0500
@@ -34,6 +34,7 @@
 #include "pm.h"
 #include "control.h"
 #include "common.h"
+#include "soc.h"
 
 /* Mach specific information to be recorded in the C-state driver_data */
 struct omap3_idle_statedata {
@@ -315,6 +316,69 @@ static struct cpuidle_driver omap3_idle_
 	.safe_state_index = 0,
 };
 
+/*
+ * Numbers based on measurements made in October 2009 for PM optimized kernel
+ * with CPU freq enabled on device Nokia N900. Assumes OPP2 (main idle OPP,
+ * and worst case latencies).
+ */
+static struct cpuidle_driver omap3430_idle_driver = {
+	.name             = "omap3430_idle",
+	.owner            = THIS_MODULE,
+	.states = {
+		{
+			.enter		  = omap3_enter_idle_bm,
+			.exit_latency	  = 110 + 162,
+			.target_residency = 5,
+			.name		  = "C1",
+			.desc		  = "MPU ON + CORE ON",
+		},
+		{
+			.enter		  = omap3_enter_idle_bm,
+			.exit_latency	  = 106 + 180,
+			.target_residency = 309,
+			.name		  = "C2",
+			.desc		  = "MPU ON + CORE ON",
+		},
+		{
+			.enter		  = omap3_enter_idle_bm,
+			.exit_latency	  = 107 + 410,
+			.target_residency = 46057,
+			.name		  = "C3",
+			.desc		  = "MPU RET + CORE ON",
+		},
+		{
+			.enter		  = omap3_enter_idle_bm,
+			.exit_latency	  = 121 + 3374,
+			.target_residency = 46057,
+			.name		  = "C4",
+			.desc		  = "MPU OFF + CORE ON",
+		},
+		{
+			.enter		  = omap3_enter_idle_bm,
+			.exit_latency	  = 855 + 1146,
+			.target_residency = 46057,
+			.name		  = "C5",
+			.desc		  = "MPU RET + CORE RET",
+		},
+		{
+			.enter		  = omap3_enter_idle_bm,
+			.exit_latency	  = 7580 + 4134,
+			.target_residency = 484329,
+			.name		  = "C6",
+			.desc		  = "MPU OFF + CORE RET",
+		},
+		{
+			.enter		  = omap3_enter_idle_bm,
+			.exit_latency	  = 7505 + 15274,
+			.target_residency = 484329,
+			.name		  = "C7",
+			.desc		  = "MPU OFF + CORE OFF",
+		},
+	},
+	.state_count = ARRAY_SIZE(omap3_idle_data),
+	.safe_state_index = 0,
+};
+
 /* Public functions */
 
 /**
@@ -333,5 +397,8 @@ int __init omap3_idle_init(void)
 	if (!mpu_pd || !core_pd || !per_pd || !cam_pd)
 		return -ENODEV;
 
-	return cpuidle_register(&omap3_idle_driver, NULL);
+	if (cpu_is_omap3430())
+		return cpuidle_register(&omap3430_idle_driver, NULL);
+	else
+		return cpuidle_register(&omap3_idle_driver, NULL);
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/mach-omap2/gpmc-onenand.c linux-libre-4.4.107-gnu/arch/arm/mach-omap2/gpmc-onenand.c
--- linux-libre-4.4-gnu/arch/arm/mach-omap2/gpmc-onenand.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/mach-omap2/gpmc-onenand.c	2017-12-20 04:05:01.000000000 -0500
@@ -101,10 +101,8 @@ static void omap2_onenand_set_async_mode
 
 static void set_onenand_cfg(void __iomem *onenand_base)
 {
-	u32 reg;
+	u32 reg = ONENAND_SYS_CFG1_RDY | ONENAND_SYS_CFG1_INT;
 
-	reg = readw(onenand_base + ONENAND_REG_SYS_CFG1);
-	reg &= ~((0x7 << ONENAND_SYS_CFG1_BRL_SHIFT) | (0x7 << 9));
 	reg |=	(latency << ONENAND_SYS_CFG1_BRL_SHIFT) |
 		ONENAND_SYS_CFG1_BL_16;
 	if (onenand_flags & ONENAND_FLAG_SYNCREAD)
@@ -123,6 +121,7 @@ static void set_onenand_cfg(void __iomem
 		reg |= ONENAND_SYS_CFG1_VHF;
 	else
 		reg &= ~ONENAND_SYS_CFG1_VHF;
+
 	writew(reg, onenand_base + ONENAND_REG_SYS_CFG1);
 }
 
@@ -289,6 +288,7 @@ static int omap2_onenand_setup_async(voi
 		}
 	}
 
+	onenand_async.sync_write = true;
 	omap2_onenand_calc_async_timings(&t);
 
 	ret = gpmc_cs_program_settings(gpmc_onenand_data->cs, &onenand_async);
@@ -367,7 +367,7 @@ static int gpmc_onenand_setup(void __iom
 	return ret;
 }
 
-void gpmc_onenand_init(struct omap_onenand_platform_data *_onenand_data)
+int gpmc_onenand_init(struct omap_onenand_platform_data *_onenand_data)
 {
 	int err;
 	struct device *dev = &gpmc_onenand_device.dev;
@@ -393,15 +393,17 @@ void gpmc_onenand_init(struct omap_onena
 	if (err < 0) {
 		dev_err(dev, "Cannot request GPMC CS %d, error %d\n",
 			gpmc_onenand_data->cs, err);
-		return;
+		return err;
 	}
 
 	gpmc_onenand_resource.end = gpmc_onenand_resource.start +
 							ONENAND_IO_SIZE - 1;
 
-	if (platform_device_register(&gpmc_onenand_device) < 0) {
+	err = platform_device_register(&gpmc_onenand_device);
+	if (err) {
 		dev_err(dev, "Unable to register OneNAND device\n");
 		gpmc_cs_free(gpmc_onenand_data->cs);
-		return;
 	}
+
+	return err;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/mach-omap2/io.c linux-libre-4.4.107-gnu/arch/arm/mach-omap2/io.c
--- linux-libre-4.4-gnu/arch/arm/mach-omap2/io.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/mach-omap2/io.c	2017-12-20 04:05:01.000000000 -0500
@@ -368,6 +368,7 @@ void __init omap5_map_io(void)
 void __init dra7xx_map_io(void)
 {
 	iotable_init(dra7xx_io_desc, ARRAY_SIZE(dra7xx_io_desc));
+	omap_barriers_init();
 }
 #endif
 /*
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/mach-omap2/omap-headsmp.S linux-libre-4.4.107-gnu/arch/arm/mach-omap2/omap-headsmp.S
--- linux-libre-4.4-gnu/arch/arm/mach-omap2/omap-headsmp.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/mach-omap2/omap-headsmp.S	2017-12-20 04:05:01.000000000 -0500
@@ -17,6 +17,7 @@
 
 #include <linux/linkage.h>
 #include <linux/init.h>
+#include <asm/assembler.h>
 
 #include "omap44xx.h"
 
@@ -56,7 +57,7 @@ wait_2:	ldr	r2, =AUX_CORE_BOOT0_PA	@ rea
 	cmp	r0, r4
 	bne	wait_2
 	ldr	r12, =API_HYP_ENTRY
-	adr	r0, hyp_boot
+	badr	r0, hyp_boot
 	smc	#0
 hyp_boot:
 	b	secondary_startup
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/mach-omap2/omap_hwmod_33xx_43xx_ipblock_data.c linux-libre-4.4.107-gnu/arch/arm/mach-omap2/omap_hwmod_33xx_43xx_ipblock_data.c
--- linux-libre-4.4-gnu/arch/arm/mach-omap2/omap_hwmod_33xx_43xx_ipblock_data.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/mach-omap2/omap_hwmod_33xx_43xx_ipblock_data.c	2017-12-20 04:05:01.000000000 -0500
@@ -1474,6 +1474,7 @@ static void omap_hwmod_am43xx_rst(void)
 {
 	RSTCTRL(am33xx_pruss_hwmod, AM43XX_RM_PER_RSTCTRL_OFFSET);
 	RSTCTRL(am33xx_gfx_hwmod, AM43XX_RM_GFX_RSTCTRL_OFFSET);
+	RSTST(am33xx_pruss_hwmod, AM43XX_RM_PER_RSTST_OFFSET);
 	RSTST(am33xx_gfx_hwmod, AM43XX_RM_GFX_RSTST_OFFSET);
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c linux-libre-4.4.107-gnu/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c
--- linux-libre-4.4-gnu/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c	2017-12-20 04:05:01.000000000 -0500
@@ -723,8 +723,20 @@ static struct omap_hwmod omap3xxx_dss_di
  * display serial interface controller
  */
 
+static struct omap_hwmod_class_sysconfig omap3xxx_dsi_sysc = {
+	.rev_offs	= 0x0000,
+	.sysc_offs	= 0x0010,
+	.syss_offs	= 0x0014,
+	.sysc_flags	= (SYSC_HAS_AUTOIDLE | SYSC_HAS_CLOCKACTIVITY |
+			   SYSC_HAS_ENAWAKEUP | SYSC_HAS_SIDLEMODE |
+			   SYSC_HAS_SOFTRESET | SYSS_HAS_RESET_STATUS),
+	.idlemodes	= (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART),
+	.sysc_fields	= &omap_hwmod_sysc_type1,
+};
+
 static struct omap_hwmod_class omap3xxx_dsi_hwmod_class = {
 	.name = "dsi",
+	.sysc	= &omap3xxx_dsi_sysc,
 };
 
 static struct omap_hwmod_irq_info omap3xxx_dsi1_irqs[] = {
@@ -3873,16 +3885,20 @@ static struct omap_hwmod_ocp_if *omap3xx
  * Return: 0 if device named @dev_name is not likely to be accessible,
  * or 1 if it is likely to be accessible.
  */
-static int __init omap3xxx_hwmod_is_hs_ip_block_usable(struct device_node *bus,
-						       const char *dev_name)
+static bool __init omap3xxx_hwmod_is_hs_ip_block_usable(struct device_node *bus,
+							const char *dev_name)
 {
+	struct device_node *node;
+	bool available;
+
 	if (!bus)
-		return (omap_type() == OMAP2_DEVICE_TYPE_GP) ? 1 : 0;
+		return omap_type() == OMAP2_DEVICE_TYPE_GP;
 
-	if (of_device_is_available(of_find_node_by_name(bus, dev_name)))
-		return 1;
+	node = of_get_child_by_name(bus, dev_name);
+	available = of_device_is_available(node);
+	of_node_put(node);
 
-	return 0;
+	return available;
 }
 
 int __init omap3xxx_hwmod_init(void)
@@ -3951,15 +3967,20 @@ int __init omap3xxx_hwmod_init(void)
 
 	if (h_sham && omap3xxx_hwmod_is_hs_ip_block_usable(bus, "sham")) {
 		r = omap_hwmod_register_links(h_sham);
-		if (r < 0)
+		if (r < 0) {
+			of_node_put(bus);
 			return r;
+		}
 	}
 
 	if (h_aes && omap3xxx_hwmod_is_hs_ip_block_usable(bus, "aes")) {
 		r = omap_hwmod_register_links(h_aes);
-		if (r < 0)
+		if (r < 0) {
+			of_node_put(bus);
 			return r;
+		}
 	}
+	of_node_put(bus);
 
 	/*
 	 * Register hwmod links specific to certain ES levels of a
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/mach-omap2/omap_hwmod.c linux-libre-4.4.107-gnu/arch/arm/mach-omap2/omap_hwmod.c
--- linux-libre-4.4-gnu/arch/arm/mach-omap2/omap_hwmod.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/mach-omap2/omap_hwmod.c	2017-12-20 04:05:01.000000000 -0500
@@ -1416,9 +1416,7 @@ static void _enable_sysc(struct omap_hwm
 	    (sf & SYSC_HAS_CLOCKACTIVITY))
 		_set_clockactivity(oh, oh->class->sysc->clockact, &v);
 
-	/* If the cached value is the same as the new value, skip the write */
-	if (oh->_sysc_cache != v)
-		_write_sysconfig(v, oh);
+	_write_sysconfig(v, oh);
 
 	/*
 	 * Set the autoidle bit only after setting the smartidle bit
@@ -1481,7 +1479,9 @@ static void _idle_sysc(struct omap_hwmod
 		_set_master_standbymode(oh, idlemode, &v);
 	}
 
-	_write_sysconfig(v, oh);
+	/* If the cached value is the same as the new value, skip the write */
+	if (oh->_sysc_cache != v)
+		_write_sysconfig(v, oh);
 }
 
 /**
@@ -2200,6 +2200,11 @@ static int _enable(struct omap_hwmod *oh
  */
 static int _idle(struct omap_hwmod *oh)
 {
+	if (oh->flags & HWMOD_NO_IDLE) {
+		oh->_int_flags |= _HWMOD_SKIP_ENABLE;
+		return 0;
+	}
+
 	pr_debug("omap_hwmod: %s: idling\n", oh->name);
 
 	if (oh->_state != _HWMOD_STATE_ENABLED) {
@@ -2504,6 +2509,8 @@ static int __init _init(struct omap_hwmo
 			oh->flags |= HWMOD_INIT_NO_RESET;
 		if (of_find_property(np, "ti,no-idle-on-init", NULL))
 			oh->flags |= HWMOD_INIT_NO_IDLE;
+		if (of_find_property(np, "ti,no-idle", NULL))
+			oh->flags |= HWMOD_NO_IDLE;
 	}
 
 	oh->_state = _HWMOD_STATE_INITIALIZED;
@@ -2630,7 +2637,7 @@ static void __init _setup_postsetup(stru
 	 * XXX HWMOD_INIT_NO_IDLE does not belong in hwmod data -
 	 * it should be set by the core code as a runtime flag during startup
 	 */
-	if ((oh->flags & HWMOD_INIT_NO_IDLE) &&
+	if ((oh->flags & (HWMOD_INIT_NO_IDLE | HWMOD_NO_IDLE)) &&
 	    (postsetup_state == _HWMOD_STATE_IDLE)) {
 		oh->_int_flags |= _HWMOD_SKIP_ENABLE;
 		postsetup_state = _HWMOD_STATE_ENABLED;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/mach-omap2/omap_hwmod.h linux-libre-4.4.107-gnu/arch/arm/mach-omap2/omap_hwmod.h
--- linux-libre-4.4-gnu/arch/arm/mach-omap2/omap_hwmod.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/mach-omap2/omap_hwmod.h	2017-12-20 04:05:01.000000000 -0500
@@ -525,6 +525,8 @@ struct omap_hwmod_omap4_prcm {
  *     or idled.
  * HWMOD_OPT_CLKS_NEEDED: The optional clocks are needed for the module to
  *     operate and they need to be handled at the same time as the main_clk.
+ * HWMOD_NO_IDLE: Do not idle the hwmod at all. Useful to handle certain
+ *     IPs like CPSW on DRA7, where clocks to this module cannot be disabled.
  */
 #define HWMOD_SWSUP_SIDLE			(1 << 0)
 #define HWMOD_SWSUP_MSTANDBY			(1 << 1)
@@ -541,6 +543,7 @@ struct omap_hwmod_omap4_prcm {
 #define HWMOD_SWSUP_SIDLE_ACT			(1 << 12)
 #define HWMOD_RECONFIG_IO_CHAIN			(1 << 13)
 #define HWMOD_OPT_CLKS_NEEDED			(1 << 14)
+#define HWMOD_NO_IDLE				(1 << 15)
 
 /*
  * omap_hwmod._int_flags definitions
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/mach-omap2/omap-mpuss-lowpower.c linux-libre-4.4.107-gnu/arch/arm/mach-omap2/omap-mpuss-lowpower.c
--- linux-libre-4.4-gnu/arch/arm/mach-omap2/omap-mpuss-lowpower.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/mach-omap2/omap-mpuss-lowpower.c	2017-12-20 04:05:01.000000000 -0500
@@ -243,10 +243,9 @@ int omap4_enter_lowpower(unsigned int cp
 		save_state = 1;
 		break;
 	case PWRDM_POWER_RET:
-		if (IS_PM44XX_ERRATUM(PM_OMAP4_CPU_OSWR_DISABLE)) {
+		if (IS_PM44XX_ERRATUM(PM_OMAP4_CPU_OSWR_DISABLE))
 			save_state = 0;
-			break;
-		}
+		break;
 	default:
 		/*
 		 * CPUx CSWR is invalid hardware state. Also CPUx OSWR
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/mach-omap2/pdata-quirks.c linux-libre-4.4.107-gnu/arch/arm/mach-omap2/pdata-quirks.c
--- linux-libre-4.4-gnu/arch/arm/mach-omap2/pdata-quirks.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/mach-omap2/pdata-quirks.c	2017-12-20 04:05:01.000000000 -0500
@@ -522,7 +522,6 @@ static void pdata_quirks_check(struct pd
 		if (of_machine_is_compatible(quirks->compatible)) {
 			if (quirks->fn)
 				quirks->fn();
-			break;
 		}
 		quirks++;
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/mach-omap2/prcm43xx.h linux-libre-4.4.107-gnu/arch/arm/mach-omap2/prcm43xx.h
--- linux-libre-4.4-gnu/arch/arm/mach-omap2/prcm43xx.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/mach-omap2/prcm43xx.h	2017-12-20 04:05:01.000000000 -0500
@@ -39,6 +39,7 @@
 
 /* RM RSTST offsets */
 #define AM43XX_RM_GFX_RSTST_OFFSET			0x0014
+#define AM43XX_RM_PER_RSTST_OFFSET			0x0014
 #define AM43XX_RM_WKUP_RSTST_OFFSET			0x0014
 
 /* CM instances */
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/mach-omap2/prm_common.c linux-libre-4.4.107-gnu/arch/arm/mach-omap2/prm_common.c
--- linux-libre-4.4-gnu/arch/arm/mach-omap2/prm_common.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/mach-omap2/prm_common.c	2017-12-20 04:05:01.000000000 -0500
@@ -706,7 +706,7 @@ static struct omap_prcm_init_data scrm_d
 };
 #endif
 
-static const struct of_device_id const omap_prcm_dt_match_table[] __initconst = {
+static const struct of_device_id omap_prcm_dt_match_table[] __initconst = {
 #ifdef CONFIG_SOC_AM33XX
 	{ .compatible = "ti,am3-prcm", .data = &am3_prm_data },
 #endif
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/mach-omap2/sleep34xx.S linux-libre-4.4.107-gnu/arch/arm/mach-omap2/sleep34xx.S
--- linux-libre-4.4-gnu/arch/arm/mach-omap2/sleep34xx.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/mach-omap2/sleep34xx.S	2017-12-20 04:05:01.000000000 -0500
@@ -86,13 +86,18 @@ ENTRY(enable_omap3630_toggle_l2_on_resto
 	stmfd	sp!, {lr}	@ save registers on stack
 	/* Setup so that we will disable and enable l2 */
 	mov	r1, #0x1
-	adrl	r2, l2dis_3630	@ may be too distant for plain adr
-	str	r1, [r2]
+	adrl	r3, l2dis_3630_offset	@ may be too distant for plain adr
+	ldr	r2, [r3]		@ value for offset
+	str	r1, [r2, r3]		@ write to l2dis_3630
 	ldmfd	sp!, {pc}	@ restore regs and return
 ENDPROC(enable_omap3630_toggle_l2_on_restore)
 
-	.text
-/* Function to call rom code to save secure ram context */
+/*
+ * Function to call rom code to save secure ram context. This gets
+ * relocated to SRAM, so it can be all in .data section. Otherwise
+ * we need to initialize api_params separately.
+ */
+	.data
 	.align	3
 ENTRY(save_secure_ram_context)
 	stmfd	sp!, {r4 - r11, lr}	@ save registers on stack
@@ -126,6 +131,8 @@ ENDPROC(save_secure_ram_context)
 ENTRY(save_secure_ram_context_sz)
 	.word	. - save_secure_ram_context
 
+	.text
+
 /*
  * ======================
  * == Idle entry point ==
@@ -289,12 +296,6 @@ wait_sdrc_ready:
 	bic	r5, r5, #0x40
 	str	r5, [r4]
 
-/*
- * PC-relative stores lead to undefined behaviour in Thumb-2: use a r7 as a
- * base instead.
- * Be careful not to clobber r7 when maintaing this code.
- */
-
 is_dll_in_lock_mode:
 	/* Is dll in lock mode? */
 	ldr	r4, sdrc_dlla_ctrl
@@ -302,11 +303,7 @@ is_dll_in_lock_mode:
 	tst	r5, #0x4
 	bne	exit_nonoff_modes	@ Return if locked
 	/* wait till dll locks */
-	adr	r7, kick_counter
 wait_dll_lock_timed:
-	ldr	r4, wait_dll_lock_counter
-	add	r4, r4, #1
-	str	r4, [r7, #wait_dll_lock_counter - kick_counter]
 	ldr	r4, sdrc_dlla_status
 	/* Wait 20uS for lock */
 	mov	r6, #8
@@ -330,9 +327,6 @@ kick_dll:
 	orr	r6, r6, #(1<<3)		@ enable dll
 	str	r6, [r4]
 	dsb
-	ldr	r4, kick_counter
-	add	r4, r4, #1
-	str	r4, [r7]		@ kick_counter
 	b	wait_dll_lock_timed
 
 exit_nonoff_modes:
@@ -360,15 +354,6 @@ sdrc_dlla_status:
 	.word	SDRC_DLLA_STATUS_V
 sdrc_dlla_ctrl:
 	.word	SDRC_DLLA_CTRL_V
-	/*
-	 * When exporting to userspace while the counters are in SRAM,
-	 * these 2 words need to be at the end to facilitate retrival!
-	 */
-kick_counter:
-	.word	0
-wait_dll_lock_counter:
-	.word	0
-
 ENTRY(omap3_do_wfi_sz)
 	.word	. - omap3_do_wfi
 
@@ -437,7 +422,9 @@ ENTRY(omap3_restore)
 	cmp	r2, #0x0	@ Check if target power state was OFF or RET
 	bne	logic_l1_restore
 
-	ldr	r0, l2dis_3630
+	adr	r1, l2dis_3630_offset	@ address for offset
+	ldr	r0, [r1]		@ value for offset
+	ldr	r0, [r1, r0]		@ value at l2dis_3630
 	cmp	r0, #0x1	@ should we disable L2 on 3630?
 	bne	skipl2dis
 	mrc	p15, 0, r0, c1, c0, 1
@@ -449,12 +436,14 @@ skipl2dis:
 	and	r1, #0x700
 	cmp	r1, #0x300
 	beq	l2_inv_gp
+	adr	r0, l2_inv_api_params_offset
+	ldr	r3, [r0]
+	add	r3, r3, r0		@ r3 points to dummy parameters
 	mov	r0, #40			@ set service ID for PPA
 	mov	r12, r0			@ copy secure Service ID in r12
 	mov	r1, #0			@ set task id for ROM code in r1
 	mov	r2, #4			@ set some flags in r2, r6
 	mov	r6, #0xff
-	adr	r3, l2_inv_api_params	@ r3 points to dummy parameters
 	dsb				@ data write barrier
 	dmb				@ data memory barrier
 	smc	#1			@ call SMI monitor (smi #1)
@@ -488,8 +477,8 @@ skipl2dis:
 	b	logic_l1_restore
 
 	.align
-l2_inv_api_params:
-	.word	0x1, 0x00
+l2_inv_api_params_offset:
+	.long	l2_inv_api_params - .
 l2_inv_gp:
 	/* Execute smi to invalidate L2 cache */
 	mov r12, #0x1			@ set up to invalidate L2
@@ -506,7 +495,9 @@ l2_inv_gp:
 	mov	r12, #0x2
 	smc	#0			@ Call SMI monitor (smieq)
 logic_l1_restore:
-	ldr	r1, l2dis_3630
+	adr	r0, l2dis_3630_offset	@ adress for offset
+	ldr	r1, [r0]		@ value for offset
+	ldr	r1, [r0, r1]		@ value at l2dis_3630
 	cmp	r1, #0x1		@ Test if L2 re-enable needed on 3630
 	bne	skipl2reen
 	mrc	p15, 0, r1, c1, c0, 1
@@ -535,9 +526,17 @@ control_stat:
 	.word	CONTROL_STAT
 control_mem_rta:
 	.word	CONTROL_MEM_RTA_CTRL
+l2dis_3630_offset:
+	.long	l2dis_3630 - .
+
+	.data
 l2dis_3630:
 	.word	0
 
+	.data
+l2_inv_api_params:
+	.word	0x1, 0x00
+
 /*
  * Internal functions
  */
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/mach-omap2/sleep44xx.S linux-libre-4.4.107-gnu/arch/arm/mach-omap2/sleep44xx.S
--- linux-libre-4.4-gnu/arch/arm/mach-omap2/sleep44xx.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/mach-omap2/sleep44xx.S	2017-12-20 04:05:01.000000000 -0500
@@ -29,12 +29,6 @@
 	dsb
 .endm
 
-ppa_zero_params:
-	.word		0x0
-
-ppa_por_params:
-	.word		1, 0
-
 #ifdef CONFIG_ARCH_OMAP4
 
 /*
@@ -266,7 +260,9 @@ ENTRY(omap4_cpu_resume)
 	beq	skip_ns_smp_enable
 ppa_actrl_retry:
 	mov     r0, #OMAP4_PPA_CPU_ACTRL_SMP_INDEX
-	adr	r3, ppa_zero_params		@ Pointer to parameters
+	adr	r1, ppa_zero_params_offset
+	ldr	r3, [r1]
+	add	r3, r3, r1			@ Pointer to ppa_zero_params
 	mov	r1, #0x0			@ Process ID
 	mov	r2, #0x4			@ Flag
 	mov	r6, #0xff
@@ -303,7 +299,9 @@ skip_ns_smp_enable:
 	ldr     r0, =OMAP4_PPA_L2_POR_INDEX
 	ldr     r1, =OMAP44XX_SAR_RAM_BASE
 	ldr     r4, [r1, #L2X0_PREFETCH_CTRL_OFFSET]
-	adr     r3, ppa_por_params
+	adr     r1, ppa_por_params_offset
+	ldr	r3, [r1]
+	add	r3, r3, r1			@ Pointer to ppa_por_params
 	str     r4, [r3, #0x04]
 	mov	r1, #0x0			@ Process ID
 	mov	r2, #0x4			@ Flag
@@ -328,6 +326,8 @@ skip_l2en:
 #endif
 
 	b	cpu_resume			@ Jump to generic resume
+ppa_por_params_offset:
+	.long	ppa_por_params - .
 ENDPROC(omap4_cpu_resume)
 #endif	/* CONFIG_ARCH_OMAP4 */
 
@@ -380,4 +380,13 @@ ENTRY(omap_do_wfi)
 	nop
 
 	ldmfd	sp!, {pc}
+ppa_zero_params_offset:
+	.long	ppa_zero_params - .
 ENDPROC(omap_do_wfi)
+
+	.data
+ppa_zero_params:
+	.word		0
+
+ppa_por_params:
+	.word		1, 0
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/mach-omap2/timer.c linux-libre-4.4.107-gnu/arch/arm/mach-omap2/timer.c
--- linux-libre-4.4-gnu/arch/arm/mach-omap2/timer.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/mach-omap2/timer.c	2017-12-20 04:05:01.000000000 -0500
@@ -496,8 +496,7 @@ void __init omap_init_time(void)
 	__omap_sync32k_timer_init(1, "timer_32k_ck", "ti,timer-alwon",
 			2, "timer_sys_ck", NULL, false);
 
-	if (of_have_populated_dt())
-		clocksource_probe();
+	clocksource_probe();
 }
 
 #if defined(CONFIG_ARCH_OMAP3) || defined(CONFIG_SOC_AM43XX)
@@ -505,6 +504,8 @@ void __init omap3_secure_sync32k_timer_i
 {
 	__omap_sync32k_timer_init(12, "secure_32k_fck", "ti,timer-secure",
 			2, "timer_sys_ck", NULL, false);
+
+	clocksource_probe();
 }
 #endif /* CONFIG_ARCH_OMAP3 */
 
@@ -513,6 +514,8 @@ void __init omap3_gptimer_timer_init(voi
 {
 	__omap_sync32k_timer_init(2, "timer_sys_ck", NULL,
 			1, "timer_sys_ck", "ti,timer-alwon", true);
+
+	clocksource_probe();
 }
 #endif
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/mach-omap2/vc.c linux-libre-4.4.107-gnu/arch/arm/mach-omap2/vc.c
--- linux-libre-4.4-gnu/arch/arm/mach-omap2/vc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/mach-omap2/vc.c	2017-12-20 04:05:01.000000000 -0500
@@ -559,7 +559,7 @@ struct i2c_init_data {
 	u8 hsscll_12;
 };
 
-static const struct i2c_init_data const omap4_i2c_timing_data[] __initconst = {
+static const struct i2c_init_data omap4_i2c_timing_data[] __initconst = {
 	{
 		.load = 50,
 		.loadbits = 0x3,
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/mach-prima2/Kconfig linux-libre-4.4.107-gnu/arch/arm/mach-prima2/Kconfig
--- linux-libre-4.4-gnu/arch/arm/mach-prima2/Kconfig	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/mach-prima2/Kconfig	2017-12-20 04:05:01.000000000 -0500
@@ -1,6 +1,7 @@
 menuconfig ARCH_SIRF
 	bool "CSR SiRF" if ARCH_MULTI_V7
 	select ARCH_HAS_RESET_CONTROLLER
+	select RESET_CONTROLLER
 	select ARCH_REQUIRE_GPIOLIB
 	select GENERIC_IRQ_CHIP
 	select NO_IOPORT_MAP
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/mach-pxa/balloon3.c linux-libre-4.4.107-gnu/arch/arm/mach-pxa/balloon3.c
--- linux-libre-4.4-gnu/arch/arm/mach-pxa/balloon3.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/mach-pxa/balloon3.c	2017-12-20 04:05:01.000000000 -0500
@@ -17,6 +17,7 @@
 #include <linux/init.h>
 #include <linux/platform_device.h>
 #include <linux/interrupt.h>
+#include <linux/leds.h>
 #include <linux/sched.h>
 #include <linux/bitops.h>
 #include <linux/fb.h>
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/mach-pxa/colibri-pxa270-income.c linux-libre-4.4.107-gnu/arch/arm/mach-pxa/colibri-pxa270-income.c
--- linux-libre-4.4-gnu/arch/arm/mach-pxa/colibri-pxa270-income.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/mach-pxa/colibri-pxa270-income.c	2017-12-20 04:05:01.000000000 -0500
@@ -17,6 +17,7 @@
 #include <linux/gpio.h>
 #include <linux/init.h>
 #include <linux/interrupt.h>
+#include <linux/leds.h>
 #include <linux/ioport.h>
 #include <linux/kernel.h>
 #include <linux/platform_device.h>
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/mach-pxa/corgi.c linux-libre-4.4.107-gnu/arch/arm/mach-pxa/corgi.c
--- linux-libre-4.4-gnu/arch/arm/mach-pxa/corgi.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/mach-pxa/corgi.c	2017-12-20 04:05:01.000000000 -0500
@@ -18,6 +18,7 @@
 #include <linux/major.h>
 #include <linux/fs.h>
 #include <linux/interrupt.h>
+#include <linux/leds.h>
 #include <linux/mmc/host.h>
 #include <linux/mtd/physmap.h>
 #include <linux/pm.h>
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/mach-pxa/devices.c linux-libre-4.4.107-gnu/arch/arm/mach-pxa/devices.c
--- linux-libre-4.4-gnu/arch/arm/mach-pxa/devices.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/mach-pxa/devices.c	2017-12-20 04:05:01.000000000 -0500
@@ -1203,6 +1203,7 @@ void __init pxa2xx_set_spi_info(unsigned
 
 static struct mmp_dma_platdata pxa_dma_pdata = {
 	.dma_channels	= 0,
+	.nb_requestors	= 0,
 };
 
 static struct resource pxa_dma_resource[] = {
@@ -1231,8 +1232,9 @@ static struct platform_device pxa2xx_pxa
 	.resource	= pxa_dma_resource,
 };
 
-void __init pxa2xx_set_dmac_info(int nb_channels)
+void __init pxa2xx_set_dmac_info(int nb_channels, int nb_requestors)
 {
 	pxa_dma_pdata.dma_channels = nb_channels;
+	pxa_dma_pdata.nb_requestors = nb_requestors;
 	pxa_register_device(&pxa2xx_pxa_dma, &pxa_dma_pdata);
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/mach-pxa/idp.c linux-libre-4.4.107-gnu/arch/arm/mach-pxa/idp.c
--- linux-libre-4.4-gnu/arch/arm/mach-pxa/idp.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/mach-pxa/idp.c	2017-12-20 04:05:01.000000000 -0500
@@ -83,7 +83,8 @@ static struct resource smc91x_resources[
 };
 
 static struct smc91x_platdata smc91x_platdata = {
-	.flags = SMC91X_USE_32BIT | SMC91X_USE_DMA | SMC91X_NOWAIT,
+	.flags = SMC91X_USE_8BIT | SMC91X_USE_16BIT | SMC91X_USE_32BIT |
+		 SMC91X_USE_DMA | SMC91X_NOWAIT,
 };
 
 static struct platform_device smc91x_device = {
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/mach-pxa/pxa25x.c linux-libre-4.4.107-gnu/arch/arm/mach-pxa/pxa25x.c
--- linux-libre-4.4-gnu/arch/arm/mach-pxa/pxa25x.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/mach-pxa/pxa25x.c	2017-12-20 04:05:01.000000000 -0500
@@ -206,7 +206,7 @@ static int __init pxa25x_init(void)
 		register_syscore_ops(&pxa_irq_syscore_ops);
 		register_syscore_ops(&pxa2xx_mfp_syscore_ops);
 
-		pxa2xx_set_dmac_info(16);
+		pxa2xx_set_dmac_info(16, 40);
 		pxa_register_device(&pxa25x_device_gpio, &pxa25x_gpio_info);
 		ret = platform_add_devices(pxa25x_devices,
 					   ARRAY_SIZE(pxa25x_devices));
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/mach-pxa/pxa27x.c linux-libre-4.4.107-gnu/arch/arm/mach-pxa/pxa27x.c
--- linux-libre-4.4-gnu/arch/arm/mach-pxa/pxa27x.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/mach-pxa/pxa27x.c	2017-12-20 04:05:01.000000000 -0500
@@ -309,7 +309,7 @@ static int __init pxa27x_init(void)
 		if (!of_have_populated_dt()) {
 			pxa_register_device(&pxa27x_device_gpio,
 					    &pxa27x_gpio_info);
-			pxa2xx_set_dmac_info(32);
+			pxa2xx_set_dmac_info(32, 75);
 			ret = platform_add_devices(devices,
 						   ARRAY_SIZE(devices));
 		}
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/mach-pxa/pxa3xx.c linux-libre-4.4.107-gnu/arch/arm/mach-pxa/pxa3xx.c
--- linux-libre-4.4-gnu/arch/arm/mach-pxa/pxa3xx.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/mach-pxa/pxa3xx.c	2017-12-20 04:05:01.000000000 -0500
@@ -450,7 +450,7 @@ static int __init pxa3xx_init(void)
 		if (of_have_populated_dt())
 			return 0;
 
-		pxa2xx_set_dmac_info(32);
+		pxa2xx_set_dmac_info(32, 100);
 		ret = platform_add_devices(devices, ARRAY_SIZE(devices));
 		if (ret)
 			return ret;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/mach-pxa/pxa_cplds_irqs.c linux-libre-4.4.107-gnu/arch/arm/mach-pxa/pxa_cplds_irqs.c
--- linux-libre-4.4-gnu/arch/arm/mach-pxa/pxa_cplds_irqs.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/mach-pxa/pxa_cplds_irqs.c	2017-12-20 04:05:01.000000000 -0500
@@ -41,30 +41,35 @@ static irqreturn_t cplds_irq_handler(int
 	unsigned long pending;
 	unsigned int bit;
 
-	pending = readl(fpga->base + FPGA_IRQ_SET_CLR) & fpga->irq_mask;
-	for_each_set_bit(bit, &pending, CPLDS_NB_IRQ)
-		generic_handle_irq(irq_find_mapping(fpga->irqdomain, bit));
+	do {
+		pending = readl(fpga->base + FPGA_IRQ_SET_CLR) & fpga->irq_mask;
+		for_each_set_bit(bit, &pending, CPLDS_NB_IRQ) {
+			generic_handle_irq(irq_find_mapping(fpga->irqdomain,
+							    bit));
+		}
+	} while (pending);
 
 	return IRQ_HANDLED;
 }
 
-static void cplds_irq_mask_ack(struct irq_data *d)
+static void cplds_irq_mask(struct irq_data *d)
 {
 	struct cplds *fpga = irq_data_get_irq_chip_data(d);
 	unsigned int cplds_irq = irqd_to_hwirq(d);
-	unsigned int set, bit = BIT(cplds_irq);
+	unsigned int bit = BIT(cplds_irq);
 
 	fpga->irq_mask &= ~bit;
 	writel(fpga->irq_mask, fpga->base + FPGA_IRQ_MASK_EN);
-	set = readl(fpga->base + FPGA_IRQ_SET_CLR);
-	writel(set & ~bit, fpga->base + FPGA_IRQ_SET_CLR);
 }
 
 static void cplds_irq_unmask(struct irq_data *d)
 {
 	struct cplds *fpga = irq_data_get_irq_chip_data(d);
 	unsigned int cplds_irq = irqd_to_hwirq(d);
-	unsigned int bit = BIT(cplds_irq);
+	unsigned int set, bit = BIT(cplds_irq);
+
+	set = readl(fpga->base + FPGA_IRQ_SET_CLR);
+	writel(set & ~bit, fpga->base + FPGA_IRQ_SET_CLR);
 
 	fpga->irq_mask |= bit;
 	writel(fpga->irq_mask, fpga->base + FPGA_IRQ_MASK_EN);
@@ -72,7 +77,8 @@ static void cplds_irq_unmask(struct irq_
 
 static struct irq_chip cplds_irq_chip = {
 	.name		= "pxa_cplds",
-	.irq_mask_ack	= cplds_irq_mask_ack,
+	.irq_ack	= cplds_irq_mask,
+	.irq_mask	= cplds_irq_mask,
 	.irq_unmask	= cplds_irq_unmask,
 	.flags		= IRQCHIP_MASK_ON_SUSPEND | IRQCHIP_SKIP_SET_WAKE,
 };
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/mach-pxa/trizeps4.c linux-libre-4.4.107-gnu/arch/arm/mach-pxa/trizeps4.c
--- linux-libre-4.4-gnu/arch/arm/mach-pxa/trizeps4.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/mach-pxa/trizeps4.c	2017-12-20 04:05:01.000000000 -0500
@@ -16,6 +16,7 @@
 #include <linux/kernel.h>
 #include <linux/platform_device.h>
 #include <linux/interrupt.h>
+#include <linux/leds.h>
 #include <linux/export.h>
 #include <linux/sched.h>
 #include <linux/bitops.h>
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/mach-pxa/vpac270.c linux-libre-4.4.107-gnu/arch/arm/mach-pxa/vpac270.c
--- linux-libre-4.4-gnu/arch/arm/mach-pxa/vpac270.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/mach-pxa/vpac270.c	2017-12-20 04:05:01.000000000 -0500
@@ -15,6 +15,7 @@
 #include <linux/irq.h>
 #include <linux/gpio_keys.h>
 #include <linux/input.h>
+#include <linux/leds.h>
 #include <linux/gpio.h>
 #include <linux/usb/gpio_vbus.h>
 #include <linux/mtd/mtd.h>
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/mach-pxa/xcep.c linux-libre-4.4.107-gnu/arch/arm/mach-pxa/xcep.c
--- linux-libre-4.4-gnu/arch/arm/mach-pxa/xcep.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/mach-pxa/xcep.c	2017-12-20 04:05:01.000000000 -0500
@@ -120,7 +120,8 @@ static struct resource smc91x_resources[
 };
 
 static struct smc91x_platdata xcep_smc91x_info = {
-	.flags	= SMC91X_USE_32BIT | SMC91X_NOWAIT | SMC91X_USE_DMA,
+	.flags	= SMC91X_USE_8BIT | SMC91X_USE_16BIT | SMC91X_USE_32BIT |
+		  SMC91X_NOWAIT | SMC91X_USE_DMA,
 };
 
 static struct platform_device smc91x_device = {
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/mach-pxa/zeus.c linux-libre-4.4.107-gnu/arch/arm/mach-pxa/zeus.c
--- linux-libre-4.4-gnu/arch/arm/mach-pxa/zeus.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/mach-pxa/zeus.c	2017-12-20 04:05:01.000000000 -0500
@@ -13,6 +13,7 @@
 
 #include <linux/cpufreq.h>
 #include <linux/interrupt.h>
+#include <linux/leds.h>
 #include <linux/irq.h>
 #include <linux/pm.h>
 #include <linux/gpio.h>
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/mach-pxa/zylonite.c linux-libre-4.4.107-gnu/arch/arm/mach-pxa/zylonite.c
--- linux-libre-4.4-gnu/arch/arm/mach-pxa/zylonite.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/mach-pxa/zylonite.c	2017-12-20 04:05:01.000000000 -0500
@@ -16,6 +16,7 @@
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/interrupt.h>
+#include <linux/leds.h>
 #include <linux/init.h>
 #include <linux/platform_device.h>
 #include <linux/gpio.h>
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/mach-realview/core.c linux-libre-4.4.107-gnu/arch/arm/mach-realview/core.c
--- linux-libre-4.4-gnu/arch/arm/mach-realview/core.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/mach-realview/core.c	2017-12-20 04:05:01.000000000 -0500
@@ -95,7 +95,8 @@ static struct smsc911x_platform_config s
 };
 
 static struct smc91x_platdata smc91x_platdata = {
-	.flags = SMC91X_USE_32BIT | SMC91X_NOWAIT,
+	.flags = SMC91X_USE_8BIT | SMC91X_USE_16BIT | SMC91X_USE_32BIT |
+		 SMC91X_NOWAIT,
 };
 
 static struct platform_device realview_eth_device = {
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/mach-s3c64xx/dev-audio.c linux-libre-4.4.107-gnu/arch/arm/mach-s3c64xx/dev-audio.c
--- linux-libre-4.4-gnu/arch/arm/mach-s3c64xx/dev-audio.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/mach-s3c64xx/dev-audio.c	2017-12-20 04:05:01.000000000 -0500
@@ -54,12 +54,12 @@ static int s3c64xx_i2s_cfg_gpio(struct p
 
 static struct resource s3c64xx_iis0_resource[] = {
 	[0] = DEFINE_RES_MEM(S3C64XX_PA_IIS0, SZ_256),
-	[1] = DEFINE_RES_DMA(DMACH_I2S0_OUT),
-	[2] = DEFINE_RES_DMA(DMACH_I2S0_IN),
 };
 
-static struct s3c_audio_pdata i2sv3_pdata = {
+static struct s3c_audio_pdata i2s0_pdata = {
 	.cfg_gpio = s3c64xx_i2s_cfg_gpio,
+	.dma_playback = DMACH_I2S0_OUT,
+	.dma_capture = DMACH_I2S0_IN,
 };
 
 struct platform_device s3c64xx_device_iis0 = {
@@ -68,15 +68,19 @@ struct platform_device s3c64xx_device_ii
 	.num_resources	  = ARRAY_SIZE(s3c64xx_iis0_resource),
 	.resource	  = s3c64xx_iis0_resource,
 	.dev = {
-		.platform_data = &i2sv3_pdata,
+		.platform_data = &i2s0_pdata,
 	},
 };
 EXPORT_SYMBOL(s3c64xx_device_iis0);
 
 static struct resource s3c64xx_iis1_resource[] = {
 	[0] = DEFINE_RES_MEM(S3C64XX_PA_IIS1, SZ_256),
-	[1] = DEFINE_RES_DMA(DMACH_I2S1_OUT),
-	[2] = DEFINE_RES_DMA(DMACH_I2S1_IN),
+};
+
+static struct s3c_audio_pdata i2s1_pdata = {
+	.cfg_gpio = s3c64xx_i2s_cfg_gpio,
+	.dma_playback = DMACH_I2S1_OUT,
+	.dma_capture = DMACH_I2S1_IN,
 };
 
 struct platform_device s3c64xx_device_iis1 = {
@@ -85,19 +89,19 @@ struct platform_device s3c64xx_device_ii
 	.num_resources	  = ARRAY_SIZE(s3c64xx_iis1_resource),
 	.resource	  = s3c64xx_iis1_resource,
 	.dev = {
-		.platform_data = &i2sv3_pdata,
+		.platform_data = &i2s1_pdata,
 	},
 };
 EXPORT_SYMBOL(s3c64xx_device_iis1);
 
 static struct resource s3c64xx_iisv4_resource[] = {
 	[0] = DEFINE_RES_MEM(S3C64XX_PA_IISV4, SZ_256),
-	[1] = DEFINE_RES_DMA(DMACH_HSI_I2SV40_TX),
-	[2] = DEFINE_RES_DMA(DMACH_HSI_I2SV40_RX),
 };
 
 static struct s3c_audio_pdata i2sv4_pdata = {
 	.cfg_gpio = s3c64xx_i2s_cfg_gpio,
+	.dma_playback = DMACH_HSI_I2SV40_TX,
+	.dma_capture = DMACH_HSI_I2SV40_RX,
 	.type = {
 		.i2s = {
 			.quirks = QUIRK_PRI_6CHAN,
@@ -142,12 +146,12 @@ static int s3c64xx_pcm_cfg_gpio(struct p
 
 static struct resource s3c64xx_pcm0_resource[] = {
 	[0] = DEFINE_RES_MEM(S3C64XX_PA_PCM0, SZ_256),
-	[1] = DEFINE_RES_DMA(DMACH_PCM0_TX),
-	[2] = DEFINE_RES_DMA(DMACH_PCM0_RX),
 };
 
 static struct s3c_audio_pdata s3c_pcm0_pdata = {
 	.cfg_gpio = s3c64xx_pcm_cfg_gpio,
+	.dma_capture = DMACH_PCM0_RX,
+	.dma_playback = DMACH_PCM0_TX,
 };
 
 struct platform_device s3c64xx_device_pcm0 = {
@@ -163,12 +167,12 @@ EXPORT_SYMBOL(s3c64xx_device_pcm0);
 
 static struct resource s3c64xx_pcm1_resource[] = {
 	[0] = DEFINE_RES_MEM(S3C64XX_PA_PCM1, SZ_256),
-	[1] = DEFINE_RES_DMA(DMACH_PCM1_TX),
-	[2] = DEFINE_RES_DMA(DMACH_PCM1_RX),
 };
 
 static struct s3c_audio_pdata s3c_pcm1_pdata = {
 	.cfg_gpio = s3c64xx_pcm_cfg_gpio,
+	.dma_playback = DMACH_PCM1_TX,
+	.dma_capture = DMACH_PCM1_RX,
 };
 
 struct platform_device s3c64xx_device_pcm1 = {
@@ -196,13 +200,14 @@ static int s3c64xx_ac97_cfg_gpe(struct p
 
 static struct resource s3c64xx_ac97_resource[] = {
 	[0] = DEFINE_RES_MEM(S3C64XX_PA_AC97, SZ_256),
-	[1] = DEFINE_RES_DMA(DMACH_AC97_PCMOUT),
-	[2] = DEFINE_RES_DMA(DMACH_AC97_PCMIN),
-	[3] = DEFINE_RES_DMA(DMACH_AC97_MICIN),
-	[4] = DEFINE_RES_IRQ(IRQ_AC97),
+	[1] = DEFINE_RES_IRQ(IRQ_AC97),
 };
 
-static struct s3c_audio_pdata s3c_ac97_pdata;
+static struct s3c_audio_pdata s3c_ac97_pdata = {
+	.dma_playback = DMACH_AC97_PCMOUT,
+	.dma_capture = DMACH_AC97_PCMIN,
+	.dma_capture_mic = DMACH_AC97_MICIN,
+};
 
 static u64 s3c64xx_ac97_dmamask = DMA_BIT_MASK(32);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/mach-s3c64xx/include/mach/dma.h linux-libre-4.4.107-gnu/arch/arm/mach-s3c64xx/include/mach/dma.h
--- linux-libre-4.4-gnu/arch/arm/mach-s3c64xx/include/mach/dma.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/mach-s3c64xx/include/mach/dma.h	2017-12-20 04:05:01.000000000 -0500
@@ -14,38 +14,38 @@
 #define S3C64XX_DMA_CHAN(name)		((unsigned long)(name))
 
 /* DMA0/SDMA0 */
-#define DMACH_UART0		S3C64XX_DMA_CHAN("uart0_tx")
-#define DMACH_UART0_SRC2	S3C64XX_DMA_CHAN("uart0_rx")
-#define DMACH_UART1		S3C64XX_DMA_CHAN("uart1_tx")
-#define DMACH_UART1_SRC2	S3C64XX_DMA_CHAN("uart1_rx")
-#define DMACH_UART2		S3C64XX_DMA_CHAN("uart2_tx")
-#define DMACH_UART2_SRC2	S3C64XX_DMA_CHAN("uart2_rx")
-#define DMACH_UART3		S3C64XX_DMA_CHAN("uart3_tx")
-#define DMACH_UART3_SRC2	S3C64XX_DMA_CHAN("uart3_rx")
-#define DMACH_PCM0_TX		S3C64XX_DMA_CHAN("pcm0_tx")
-#define DMACH_PCM0_RX		S3C64XX_DMA_CHAN("pcm0_rx")
-#define DMACH_I2S0_OUT		S3C64XX_DMA_CHAN("i2s0_tx")
-#define DMACH_I2S0_IN		S3C64XX_DMA_CHAN("i2s0_rx")
+#define DMACH_UART0		"uart0_tx"
+#define DMACH_UART0_SRC2	"uart0_rx"
+#define DMACH_UART1		"uart1_tx"
+#define DMACH_UART1_SRC2	"uart1_rx"
+#define DMACH_UART2		"uart2_tx"
+#define DMACH_UART2_SRC2	"uart2_rx"
+#define DMACH_UART3		"uart3_tx"
+#define DMACH_UART3_SRC2	"uart3_rx"
+#define DMACH_PCM0_TX		"pcm0_tx"
+#define DMACH_PCM0_RX		"pcm0_rx"
+#define DMACH_I2S0_OUT		"i2s0_tx"
+#define DMACH_I2S0_IN		"i2s0_rx"
 #define DMACH_SPI0_TX		S3C64XX_DMA_CHAN("spi0_tx")
 #define DMACH_SPI0_RX		S3C64XX_DMA_CHAN("spi0_rx")
-#define DMACH_HSI_I2SV40_TX	S3C64XX_DMA_CHAN("i2s2_tx")
-#define DMACH_HSI_I2SV40_RX	S3C64XX_DMA_CHAN("i2s2_rx")
+#define DMACH_HSI_I2SV40_TX	"i2s2_tx"
+#define DMACH_HSI_I2SV40_RX	"i2s2_rx"
 
 /* DMA1/SDMA1 */
-#define DMACH_PCM1_TX		S3C64XX_DMA_CHAN("pcm1_tx")
-#define DMACH_PCM1_RX		S3C64XX_DMA_CHAN("pcm1_rx")
-#define DMACH_I2S1_OUT		S3C64XX_DMA_CHAN("i2s1_tx")
-#define DMACH_I2S1_IN		S3C64XX_DMA_CHAN("i2s1_rx")
+#define DMACH_PCM1_TX		"pcm1_tx"
+#define DMACH_PCM1_RX		"pcm1_rx"
+#define DMACH_I2S1_OUT		"i2s1_tx"
+#define DMACH_I2S1_IN		"i2s1_rx"
 #define DMACH_SPI1_TX		S3C64XX_DMA_CHAN("spi1_tx")
 #define DMACH_SPI1_RX		S3C64XX_DMA_CHAN("spi1_rx")
-#define DMACH_AC97_PCMOUT	S3C64XX_DMA_CHAN("ac97_out")
-#define DMACH_AC97_PCMIN	S3C64XX_DMA_CHAN("ac97_in")
-#define DMACH_AC97_MICIN	S3C64XX_DMA_CHAN("ac97_mic")
-#define DMACH_PWM		S3C64XX_DMA_CHAN("pwm")
-#define DMACH_IRDA		S3C64XX_DMA_CHAN("irda")
-#define DMACH_EXTERNAL		S3C64XX_DMA_CHAN("external")
-#define DMACH_SECURITY_RX	S3C64XX_DMA_CHAN("sec_rx")
-#define DMACH_SECURITY_TX	S3C64XX_DMA_CHAN("sec_tx")
+#define DMACH_AC97_PCMOUT	"ac97_out"
+#define DMACH_AC97_PCMIN	"ac97_in"
+#define DMACH_AC97_MICIN	"ac97_mic"
+#define DMACH_PWM		"pwm"
+#define DMACH_IRDA		"irda"
+#define DMACH_EXTERNAL		"external"
+#define DMACH_SECURITY_RX	"sec_rx"
+#define DMACH_SECURITY_TX	"sec_tx"
 
 enum dma_ch {
 	DMACH_MAX = 32
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/mach-sa1100/clock.c linux-libre-4.4.107-gnu/arch/arm/mach-sa1100/clock.c
--- linux-libre-4.4-gnu/arch/arm/mach-sa1100/clock.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/mach-sa1100/clock.c	2017-12-20 04:05:01.000000000 -0500
@@ -125,6 +125,8 @@ static unsigned long clk_36864_get_rate(
 }
 
 static struct clkops clk_36864_ops = {
+	.enable		= clk_cpu_enable,
+	.disable	= clk_cpu_disable,
 	.get_rate	= clk_36864_get_rate,
 };
 
@@ -140,9 +142,8 @@ static struct clk_lookup sa11xx_clkregs[
 	CLKDEV_INIT(NULL, "OSTIMER0", &clk_36864),
 };
 
-static int __init sa11xx_clk_init(void)
+int __init sa11xx_clk_init(void)
 {
 	clkdev_add_table(sa11xx_clkregs, ARRAY_SIZE(sa11xx_clkregs));
 	return 0;
 }
-core_initcall(sa11xx_clk_init);
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/mach-sa1100/generic.c linux-libre-4.4.107-gnu/arch/arm/mach-sa1100/generic.c
--- linux-libre-4.4-gnu/arch/arm/mach-sa1100/generic.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/mach-sa1100/generic.c	2017-12-20 04:05:01.000000000 -0500
@@ -34,6 +34,7 @@
 
 #include <mach/hardware.h>
 #include <mach/irqs.h>
+#include <mach/reset.h>
 
 #include "generic.h"
 #include <clocksource/pxa.h>
@@ -95,6 +96,8 @@ static void sa1100_power_off(void)
 
 void sa11x0_restart(enum reboot_mode mode, const char *cmd)
 {
+	clear_reset_status(RESET_STATUS_ALL);
+
 	if (mode == REBOOT_SOFT) {
 		/* Jump into ROM at address 0 */
 		soft_restart(0);
@@ -388,6 +391,7 @@ void __init sa1100_init_irq(void)
 	sa11x0_init_irq_nodt(IRQ_GPIO0_SC, irq_resource.start);
 
 	sa1100_init_gpio();
+	sa11xx_clk_init();
 }
 
 /*
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/mach-sa1100/generic.h linux-libre-4.4.107-gnu/arch/arm/mach-sa1100/generic.h
--- linux-libre-4.4-gnu/arch/arm/mach-sa1100/generic.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/mach-sa1100/generic.h	2017-12-20 04:05:01.000000000 -0500
@@ -44,3 +44,5 @@ int sa11x0_pm_init(void);
 #else
 static inline int sa11x0_pm_init(void) { return 0; }
 #endif
+
+int sa11xx_clk_init(void);
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/mach-sa1100/pleb.c linux-libre-4.4.107-gnu/arch/arm/mach-sa1100/pleb.c
--- linux-libre-4.4-gnu/arch/arm/mach-sa1100/pleb.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/mach-sa1100/pleb.c	2017-12-20 04:05:01.000000000 -0500
@@ -45,7 +45,7 @@ static struct resource smc91x_resources[
 };
 
 static struct smc91x_platdata smc91x_platdata = {
-	.flags = SMC91X_USE_16BIT | SMC91X_NOWAIT,
+	.flags = SMC91X_USE_16BIT | SMC91X_USE_8BIT | SMC91X_NOWAIT,
 };
 
 static struct platform_device smc91x_device = {
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/mach-shmobile/regulator-quirk-rcar-gen2.c linux-libre-4.4.107-gnu/arch/arm/mach-shmobile/regulator-quirk-rcar-gen2.c
--- linux-libre-4.4-gnu/arch/arm/mach-shmobile/regulator-quirk-rcar-gen2.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/mach-shmobile/regulator-quirk-rcar-gen2.c	2017-12-20 04:05:01.000000000 -0500
@@ -41,39 +41,26 @@
 
 #define REGULATOR_IRQ_MASK	BIT(2)	/* IRQ2, active low */
 
-static void __iomem *irqc;
-
-static const u8 da9063_mask_regs[] = {
-	DA9063_REG_IRQ_MASK_A,
-	DA9063_REG_IRQ_MASK_B,
-	DA9063_REG_IRQ_MASK_C,
-	DA9063_REG_IRQ_MASK_D,
-};
-
-/* DA9210 System Control and Event Registers */
+/* start of DA9210 System Control and Event Registers */
 #define DA9210_REG_MASK_A		0x54
-#define DA9210_REG_MASK_B		0x55
-
-static const u8 da9210_mask_regs[] = {
-	DA9210_REG_MASK_A,
-	DA9210_REG_MASK_B,
-};
 
-static void da9xxx_mask_irqs(struct i2c_client *client, const u8 regs[],
-			     unsigned int nregs)
-{
-	unsigned int i;
+static void __iomem *irqc;
 
-	dev_info(&client->dev, "Masking %s interrupt sources\n", client->name);
+/* first byte sets the memory pointer, following are consecutive reg values */
+static u8 da9063_irq_clr[] = { DA9063_REG_IRQ_MASK_A, 0xff, 0xff, 0xff, 0xff };
+static u8 da9210_irq_clr[] = { DA9210_REG_MASK_A, 0xff, 0xff };
 
-	for (i = 0; i < nregs; i++) {
-		int error = i2c_smbus_write_byte_data(client, regs[i], ~0);
-		if (error) {
-			dev_err(&client->dev, "i2c error %d\n", error);
-			return;
-		}
-	}
-}
+static struct i2c_msg da9xxx_msgs[2] = {
+	{
+		.addr = 0x58,
+		.len = ARRAY_SIZE(da9063_irq_clr),
+		.buf = da9063_irq_clr,
+	}, {
+		.addr = 0x68,
+		.len = ARRAY_SIZE(da9210_irq_clr),
+		.buf = da9210_irq_clr,
+	},
+};
 
 static int regulator_quirk_notify(struct notifier_block *nb,
 				  unsigned long action, void *data)
@@ -93,12 +80,15 @@ static int regulator_quirk_notify(struct
 	client = to_i2c_client(dev);
 	dev_dbg(dev, "Detected %s\n", client->name);
 
-	if ((client->addr == 0x58 && !strcmp(client->name, "da9063")))
-		da9xxx_mask_irqs(client, da9063_mask_regs,
-				 ARRAY_SIZE(da9063_mask_regs));
-	else if (client->addr == 0x68 && !strcmp(client->name, "da9210"))
-		da9xxx_mask_irqs(client, da9210_mask_regs,
-				 ARRAY_SIZE(da9210_mask_regs));
+	if ((client->addr == 0x58 && !strcmp(client->name, "da9063")) ||
+	    (client->addr == 0x68 && !strcmp(client->name, "da9210"))) {
+		int ret;
+
+		dev_info(&client->dev, "clearing da9063/da9210 interrupts\n");
+		ret = i2c_transfer(client->adapter, da9xxx_msgs, ARRAY_SIZE(da9xxx_msgs));
+		if (ret != ARRAY_SIZE(da9xxx_msgs))
+			dev_err(&client->dev, "i2c error %d\n", ret);
+	}
 
 	mon = ioread32(irqc + IRQC_MONITOR);
 	if (mon & REGULATOR_IRQ_MASK)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/mach-socfpga/headsmp.S linux-libre-4.4.107-gnu/arch/arm/mach-socfpga/headsmp.S
--- linux-libre-4.4-gnu/arch/arm/mach-socfpga/headsmp.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/mach-socfpga/headsmp.S	2017-12-20 04:05:01.000000000 -0500
@@ -13,6 +13,7 @@
 #include <asm/assembler.h>
 
 	.arch	armv7-a
+	.arm
 
 ENTRY(secondary_trampoline)
 	/* CPU1 will always fetch from 0x0 when it is brought out of reset.
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/mach-spear/time.c linux-libre-4.4.107-gnu/arch/arm/mach-spear/time.c
--- linux-libre-4.4-gnu/arch/arm/mach-spear/time.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/mach-spear/time.c	2017-12-20 04:05:01.000000000 -0500
@@ -204,7 +204,7 @@ static void __init spear_clockevent_init
 	setup_irq(irq, &spear_timer_irq);
 }
 
-static const struct of_device_id const timer_of_match[] __initconst = {
+static const struct of_device_id timer_of_match[] __initconst = {
 	{ .compatible = "st,spear-timer", },
 	{ },
 };
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/mach-ux500/pm.c linux-libre-4.4.107-gnu/arch/arm/mach-ux500/pm.c
--- linux-libre-4.4-gnu/arch/arm/mach-ux500/pm.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/mach-ux500/pm.c	2017-12-20 04:05:01.000000000 -0500
@@ -134,8 +134,8 @@ bool prcmu_pending_irq(void)
  */
 bool prcmu_is_cpu_in_wfi(int cpu)
 {
-	return readl(PRCM_ARM_WFI_STANDBY) & cpu ? PRCM_ARM_WFI_STANDBY_WFI1 :
-		     PRCM_ARM_WFI_STANDBY_WFI0;
+	return readl(PRCM_ARM_WFI_STANDBY) &
+		(cpu ? PRCM_ARM_WFI_STANDBY_WFI1 : PRCM_ARM_WFI_STANDBY_WFI0);
 }
 
 /*
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/mach-zynq/common.c linux-libre-4.4.107-gnu/arch/arm/mach-zynq/common.c
--- linux-libre-4.4-gnu/arch/arm/mach-zynq/common.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/mach-zynq/common.c	2017-12-20 04:05:01.000000000 -0500
@@ -59,7 +59,7 @@ void __iomem *zynq_scu_base;
 static void __init zynq_memory_init(void)
 {
 	if (!__pa(PAGE_OFFSET))
-		memblock_reserve(__pa(PAGE_OFFSET), __pa(swapper_pg_dir));
+		memblock_reserve(__pa(PAGE_OFFSET), 0x80000);
 }
 
 static struct platform_device zynq_cpuidle_device = {
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/mm/dump.c linux-libre-4.4.107-gnu/arch/arm/mm/dump.c
--- linux-libre-4.4-gnu/arch/arm/mm/dump.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/mm/dump.c	2017-12-20 04:05:01.000000000 -0500
@@ -126,8 +126,8 @@ static const struct prot_bits section_bi
 		.val	= PMD_SECT_USER,
 		.set	= "USR",
 	}, {
-		.mask	= L_PMD_SECT_RDONLY,
-		.val	= L_PMD_SECT_RDONLY,
+		.mask	= L_PMD_SECT_RDONLY | PMD_SECT_AP2,
+		.val	= L_PMD_SECT_RDONLY | PMD_SECT_AP2,
 		.set	= "ro",
 		.clear	= "RW",
 #elif __LINUX_ARM_ARCH__ >= 6
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/mm/fault.c linux-libre-4.4.107-gnu/arch/arm/mm/fault.c
--- linux-libre-4.4-gnu/arch/arm/mm/fault.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/mm/fault.c	2017-12-20 04:05:01.000000000 -0500
@@ -314,8 +314,11 @@ retry:
 	 * signal first. We do not need to release the mmap_sem because
 	 * it would already be released in __lock_page_or_retry in
 	 * mm/filemap.c. */
-	if ((fault & VM_FAULT_RETRY) && fatal_signal_pending(current))
+	if ((fault & VM_FAULT_RETRY) && fatal_signal_pending(current)) {
+		if (!user_mode(regs))
+			goto no_context;
 		return 0;
+	}
 
 	/*
 	 * Major/minor page fault accounting is only done on the
@@ -610,9 +613,9 @@ static int __init early_abort_handler(un
 
 void __init early_abt_enable(void)
 {
-	fsr_info[22].fn = early_abort_handler;
+	fsr_info[FSR_FS_AEA].fn = early_abort_handler;
 	local_abt_enable();
-	fsr_info[22].fn = do_bad;
+	fsr_info[FSR_FS_AEA].fn = do_bad;
 }
 
 #ifndef CONFIG_ARM_LPAE
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/mm/fault.h linux-libre-4.4.107-gnu/arch/arm/mm/fault.h
--- linux-libre-4.4-gnu/arch/arm/mm/fault.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/mm/fault.h	2017-12-20 04:05:01.000000000 -0500
@@ -11,11 +11,15 @@
 #define FSR_FS5_0		(0x3f)
 
 #ifdef CONFIG_ARM_LPAE
+#define FSR_FS_AEA		17
+
 static inline int fsr_fs(unsigned int fsr)
 {
 	return fsr & FSR_FS5_0;
 }
 #else
+#define FSR_FS_AEA		22
+
 static inline int fsr_fs(unsigned int fsr)
 {
 	return (fsr & FSR_FS3_0) | (fsr & FSR_FS4) >> 6;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/mm/init.c linux-libre-4.4.107-gnu/arch/arm/mm/init.c
--- linux-libre-4.4-gnu/arch/arm/mm/init.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/mm/init.c	2017-12-20 04:05:01.000000000 -0500
@@ -611,8 +611,8 @@ static struct section_perm ro_perms[] =
 		.start  = (unsigned long)_stext,
 		.end    = (unsigned long)__init_begin,
 #ifdef CONFIG_ARM_LPAE
-		.mask   = ~L_PMD_SECT_RDONLY,
-		.prot   = L_PMD_SECT_RDONLY,
+		.mask   = ~(L_PMD_SECT_RDONLY | PMD_SECT_AP2),
+		.prot   = L_PMD_SECT_RDONLY | PMD_SECT_AP2,
 #else
 		.mask   = ~(PMD_SECT_APX | PMD_SECT_AP_WRITE),
 		.prot   = PMD_SECT_APX | PMD_SECT_AP_WRITE,
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/mm/mmap.c linux-libre-4.4.107-gnu/arch/arm/mm/mmap.c
--- linux-libre-4.4-gnu/arch/arm/mm/mmap.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/mm/mmap.c	2017-12-20 04:05:01.000000000 -0500
@@ -89,7 +89,7 @@ arch_get_unmapped_area(struct file *filp
 
 		vma = find_vma(mm, addr);
 		if (TASK_SIZE - len >= addr &&
-		    (!vma || addr + len <= vma->vm_start))
+		    (!vma || addr + len <= vm_start_gap(vma)))
 			return addr;
 	}
 
@@ -140,7 +140,7 @@ arch_get_unmapped_area_topdown(struct fi
 			addr = PAGE_ALIGN(addr);
 		vma = find_vma(mm, addr);
 		if (TASK_SIZE - len >= addr &&
-				(!vma || addr + len <= vma->vm_start))
+				(!vma || addr + len <= vm_start_gap(vma)))
 			return addr;
 	}
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/mm/mmu.c linux-libre-4.4.107-gnu/arch/arm/mm/mmu.c
--- linux-libre-4.4-gnu/arch/arm/mm/mmu.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/mm/mmu.c	2017-12-20 04:05:01.000000000 -0500
@@ -1184,15 +1184,15 @@ void __init sanity_check_meminfo(void)
 
 	high_memory = __va(arm_lowmem_limit - 1) + 1;
 
+	if (!memblock_limit)
+		memblock_limit = arm_lowmem_limit;
+
 	/*
 	 * Round the memblock limit down to a pmd size.  This
 	 * helps to ensure that we will allocate memory from the
 	 * last full pmd, which should be mapped.
 	 */
-	if (memblock_limit)
-		memblock_limit = round_down(memblock_limit, PMD_SIZE);
-	if (!memblock_limit)
-		memblock_limit = arm_lowmem_limit;
+	memblock_limit = round_down(memblock_limit, PMD_SIZE);
 
 	memblock_set_current_limit(memblock_limit);
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/plat-pxa/include/plat/dma.h linux-libre-4.4.107-gnu/arch/arm/plat-pxa/include/plat/dma.h
--- linux-libre-4.4-gnu/arch/arm/plat-pxa/include/plat/dma.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/plat-pxa/include/plat/dma.h	2017-12-20 04:05:01.000000000 -0500
@@ -95,6 +95,6 @@ static inline int pxad_toggle_reserved_c
 }
 #endif
 
-extern void __init pxa2xx_set_dmac_info(int nb_channels);
+extern void __init pxa2xx_set_dmac_info(int nb_channels, int nb_requestors);
 
 #endif /* __PLAT_DMA_H */
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/plat-samsung/devs.c linux-libre-4.4.107-gnu/arch/arm/plat-samsung/devs.c
--- linux-libre-4.4-gnu/arch/arm/plat-samsung/devs.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/plat-samsung/devs.c	2017-12-20 04:05:01.000000000 -0500
@@ -65,6 +65,7 @@
 #include <linux/platform_data/usb-ohci-s3c2410.h>
 #include <plat/usb-phy.h>
 #include <plat/regs-spi.h>
+#include <linux/platform_data/asoc-s3c.h>
 #include <linux/platform_data/spi-s3c64xx.h>
 
 static u64 samsung_device_dma_mask = DMA_BIT_MASK(32);
@@ -74,9 +75,12 @@ static u64 samsung_device_dma_mask = DMA
 static struct resource s3c_ac97_resource[] = {
 	[0] = DEFINE_RES_MEM(S3C2440_PA_AC97, S3C2440_SZ_AC97),
 	[1] = DEFINE_RES_IRQ(IRQ_S3C244X_AC97),
-	[2] = DEFINE_RES_DMA_NAMED(DMACH_PCM_OUT, "PCM out"),
-	[3] = DEFINE_RES_DMA_NAMED(DMACH_PCM_IN, "PCM in"),
-	[4] = DEFINE_RES_DMA_NAMED(DMACH_MIC_IN, "Mic in"),
+};
+
+static struct s3c_audio_pdata s3c_ac97_pdata = {
+	.dma_playback = (void *)DMACH_PCM_OUT,
+	.dma_capture = (void *)DMACH_PCM_IN,
+	.dma_capture_mic = (void *)DMACH_MIC_IN,
 };
 
 struct platform_device s3c_device_ac97 = {
@@ -87,6 +91,7 @@ struct platform_device s3c_device_ac97 =
 	.dev		= {
 		.dma_mask		= &samsung_device_dma_mask,
 		.coherent_dma_mask	= DMA_BIT_MASK(32),
+		.platform_data		= &s3c_ac97_pdata,
 	}
 };
 #endif /* CONFIG_CPU_S3C2440 */
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/xen/enlighten.c linux-libre-4.4.107-gnu/arch/arm/xen/enlighten.c
--- linux-libre-4.4-gnu/arch/arm/xen/enlighten.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/xen/enlighten.c	2017-12-20 04:05:01.000000000 -0500
@@ -239,8 +239,7 @@ static int __init xen_guest_init(void)
 	 * for secondary CPUs as they are brought up.
 	 * For uniformity we use VCPUOP_register_vcpu_info even on cpu0.
 	 */
-	xen_vcpu_info = __alloc_percpu(sizeof(struct vcpu_info),
-			                       sizeof(struct vcpu_info));
+	xen_vcpu_info = alloc_percpu(struct vcpu_info);
 	if (xen_vcpu_info == NULL)
 		return -ENOMEM;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm/xen/mm.c linux-libre-4.4.107-gnu/arch/arm/xen/mm.c
--- linux-libre-4.4-gnu/arch/arm/xen/mm.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm/xen/mm.c	2017-12-20 04:05:01.000000000 -0500
@@ -199,6 +199,7 @@ static struct dma_map_ops xen_swiotlb_dm
 	.unmap_page = xen_swiotlb_unmap_page,
 	.dma_supported = xen_swiotlb_dma_supported,
 	.set_dma_mask = xen_swiotlb_set_dma_mask,
+	.mmap = xen_swiotlb_dma_mmap,
 };
 
 int __init xen_mm_init(void)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/boot/dts/broadcom/ns2.dtsi linux-libre-4.4.107-gnu/arch/arm64/boot/dts/broadcom/ns2.dtsi
--- linux-libre-4.4-gnu/arch/arm64/boot/dts/broadcom/ns2.dtsi	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm64/boot/dts/broadcom/ns2.dtsi	2017-12-20 04:05:01.000000000 -0500
@@ -30,6 +30,8 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
+/memreserve/ 0x81000000 0x00200000;
+
 #include <dt-bindings/interrupt-controller/arm-gic.h>
 
 /memreserve/ 0x84b00000 0x00000008;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/boot/dts/rockchip/rk3368.dtsi linux-libre-4.4.107-gnu/arch/arm64/boot/dts/rockchip/rk3368.dtsi
--- linux-libre-4.4-gnu/arch/arm64/boot/dts/rockchip/rk3368.dtsi	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm64/boot/dts/rockchip/rk3368.dtsi	2017-12-20 04:05:01.000000000 -0500
@@ -262,6 +262,8 @@
 		#io-channel-cells = <1>;
 		clocks = <&cru SCLK_SARADC>, <&cru PCLK_SARADC>;
 		clock-names = "saradc", "apb_pclk";
+		resets = <&cru SRST_SARADC>;
+		reset-names = "saradc-apb";
 		status = "disabled";
 	};
 
@@ -517,7 +519,7 @@
 		#address-cells = <0>;
 
 		reg = <0x0 0xffb71000 0x0 0x1000>,
-		      <0x0 0xffb72000 0x0 0x1000>,
+		      <0x0 0xffb72000 0x0 0x2000>,
 		      <0x0 0xffb74000 0x0 0x2000>,
 		      <0x0 0xffb76000 0x0 0x2000>;
 		interrupts = <GIC_PPI 9
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/boot/dts/xilinx/zynqmp.dtsi linux-libre-4.4.107-gnu/arch/arm64/boot/dts/xilinx/zynqmp.dtsi
--- linux-libre-4.4-gnu/arch/arm64/boot/dts/xilinx/zynqmp.dtsi	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm64/boot/dts/xilinx/zynqmp.dtsi	2017-12-20 04:05:01.000000000 -0500
@@ -71,7 +71,7 @@
 			     <1 10 0xf01>;
 	};
 
-	amba_apu {
+	amba_apu: amba_apu@0 {
 		compatible = "simple-bus";
 		#address-cells = <2>;
 		#size-cells = <1>;
@@ -191,7 +191,7 @@
 		};
 
 		i2c0: i2c@ff020000 {
-			compatible = "cdns,i2c-r1p10";
+			compatible = "cdns,i2c-r1p14", "cdns,i2c-r1p10";
 			status = "disabled";
 			interrupt-parent = <&gic>;
 			interrupts = <0 17 4>;
@@ -202,7 +202,7 @@
 		};
 
 		i2c1: i2c@ff030000 {
-			compatible = "cdns,i2c-r1p10";
+			compatible = "cdns,i2c-r1p14", "cdns,i2c-r1p10";
 			status = "disabled";
 			interrupt-parent = <&gic>;
 			interrupts = <0 18 4>;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/boot/dts/xilinx/zynqmp-ep108.dts linux-libre-4.4.107-gnu/arch/arm64/boot/dts/xilinx/zynqmp-ep108.dts
--- linux-libre-4.4-gnu/arch/arm64/boot/dts/xilinx/zynqmp-ep108.dts	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm64/boot/dts/xilinx/zynqmp-ep108.dts	2017-12-20 04:05:01.000000000 -0500
@@ -26,7 +26,7 @@
 		stdout-path = "serial0:115200n8";
 	};
 
-	memory {
+	memory@0 {
 		device_type = "memory";
 		reg = <0x0 0x0 0x40000000>;
 	};
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/crypto/aes-ce-ccm-core.S linux-libre-4.4.107-gnu/arch/arm64/crypto/aes-ce-ccm-core.S
--- linux-libre-4.4-gnu/arch/arm64/crypto/aes-ce-ccm-core.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm64/crypto/aes-ce-ccm-core.S	2017-12-20 04:05:01.000000000 -0500
@@ -9,6 +9,7 @@
  */
 
 #include <linux/linkage.h>
+#include <asm/assembler.h>
 
 	.text
 	.arch	armv8-a+crypto
@@ -19,7 +20,7 @@
 	 */
 ENTRY(ce_aes_ccm_auth_data)
 	ldr	w8, [x3]			/* leftover from prev round? */
-	ld1	{v0.2d}, [x0]			/* load mac */
+	ld1	{v0.16b}, [x0]			/* load mac */
 	cbz	w8, 1f
 	sub	w8, w8, #16
 	eor	v1.16b, v1.16b, v1.16b
@@ -31,7 +32,7 @@ ENTRY(ce_aes_ccm_auth_data)
 	beq	8f				/* out of input? */
 	cbnz	w8, 0b
 	eor	v0.16b, v0.16b, v1.16b
-1:	ld1	{v3.2d}, [x4]			/* load first round key */
+1:	ld1	{v3.16b}, [x4]			/* load first round key */
 	prfm	pldl1strm, [x1]
 	cmp	w5, #12				/* which key size? */
 	add	x6, x4, #16
@@ -41,17 +42,17 @@ ENTRY(ce_aes_ccm_auth_data)
 	mov	v5.16b, v3.16b
 	b	4f
 2:	mov	v4.16b, v3.16b
-	ld1	{v5.2d}, [x6], #16		/* load 2nd round key */
+	ld1	{v5.16b}, [x6], #16		/* load 2nd round key */
 3:	aese	v0.16b, v4.16b
 	aesmc	v0.16b, v0.16b
-4:	ld1	{v3.2d}, [x6], #16		/* load next round key */
+4:	ld1	{v3.16b}, [x6], #16		/* load next round key */
 	aese	v0.16b, v5.16b
 	aesmc	v0.16b, v0.16b
-5:	ld1	{v4.2d}, [x6], #16		/* load next round key */
+5:	ld1	{v4.16b}, [x6], #16		/* load next round key */
 	subs	w7, w7, #3
 	aese	v0.16b, v3.16b
 	aesmc	v0.16b, v0.16b
-	ld1	{v5.2d}, [x6], #16		/* load next round key */
+	ld1	{v5.16b}, [x6], #16		/* load next round key */
 	bpl	3b
 	aese	v0.16b, v4.16b
 	subs	w2, w2, #16			/* last data? */
@@ -60,7 +61,7 @@ ENTRY(ce_aes_ccm_auth_data)
 	ld1	{v1.16b}, [x1], #16		/* load next input block */
 	eor	v0.16b, v0.16b, v1.16b		/* xor with mac */
 	bne	1b
-6:	st1	{v0.2d}, [x0]			/* store mac */
+6:	st1	{v0.16b}, [x0]			/* store mac */
 	beq	10f
 	adds	w2, w2, #16
 	beq	10f
@@ -79,7 +80,7 @@ ENTRY(ce_aes_ccm_auth_data)
 	adds	w7, w7, #1
 	bne	9b
 	eor	v0.16b, v0.16b, v1.16b
-	st1	{v0.2d}, [x0]
+	st1	{v0.16b}, [x0]
 10:	str	w8, [x3]
 	ret
 ENDPROC(ce_aes_ccm_auth_data)
@@ -89,27 +90,27 @@ ENDPROC(ce_aes_ccm_auth_data)
 	 * 			 u32 rounds);
 	 */
 ENTRY(ce_aes_ccm_final)
-	ld1	{v3.2d}, [x2], #16		/* load first round key */
-	ld1	{v0.2d}, [x0]			/* load mac */
+	ld1	{v3.16b}, [x2], #16		/* load first round key */
+	ld1	{v0.16b}, [x0]			/* load mac */
 	cmp	w3, #12				/* which key size? */
 	sub	w3, w3, #2			/* modified # of rounds */
-	ld1	{v1.2d}, [x1]			/* load 1st ctriv */
+	ld1	{v1.16b}, [x1]			/* load 1st ctriv */
 	bmi	0f
 	bne	3f
 	mov	v5.16b, v3.16b
 	b	2f
 0:	mov	v4.16b, v3.16b
-1:	ld1	{v5.2d}, [x2], #16		/* load next round key */
+1:	ld1	{v5.16b}, [x2], #16		/* load next round key */
 	aese	v0.16b, v4.16b
 	aesmc	v0.16b, v0.16b
 	aese	v1.16b, v4.16b
 	aesmc	v1.16b, v1.16b
-2:	ld1	{v3.2d}, [x2], #16		/* load next round key */
+2:	ld1	{v3.16b}, [x2], #16		/* load next round key */
 	aese	v0.16b, v5.16b
 	aesmc	v0.16b, v0.16b
 	aese	v1.16b, v5.16b
 	aesmc	v1.16b, v1.16b
-3:	ld1	{v4.2d}, [x2], #16		/* load next round key */
+3:	ld1	{v4.16b}, [x2], #16		/* load next round key */
 	subs	w3, w3, #3
 	aese	v0.16b, v3.16b
 	aesmc	v0.16b, v0.16b
@@ -120,47 +121,47 @@ ENTRY(ce_aes_ccm_final)
 	aese	v1.16b, v4.16b
 	/* final round key cancels out */
 	eor	v0.16b, v0.16b, v1.16b		/* en-/decrypt the mac */
-	st1	{v0.2d}, [x0]			/* store result */
+	st1	{v0.16b}, [x0]			/* store result */
 	ret
 ENDPROC(ce_aes_ccm_final)
 
 	.macro	aes_ccm_do_crypt,enc
 	ldr	x8, [x6, #8]			/* load lower ctr */
-	ld1	{v0.2d}, [x5]			/* load mac */
-	rev	x8, x8				/* keep swabbed ctr in reg */
+	ld1	{v0.16b}, [x5]			/* load mac */
+CPU_LE(	rev	x8, x8			)	/* keep swabbed ctr in reg */
 0:	/* outer loop */
-	ld1	{v1.1d}, [x6]			/* load upper ctr */
+	ld1	{v1.8b}, [x6]			/* load upper ctr */
 	prfm	pldl1strm, [x1]
 	add	x8, x8, #1
 	rev	x9, x8
 	cmp	w4, #12				/* which key size? */
 	sub	w7, w4, #2			/* get modified # of rounds */
 	ins	v1.d[1], x9			/* no carry in lower ctr */
-	ld1	{v3.2d}, [x3]			/* load first round key */
+	ld1	{v3.16b}, [x3]			/* load first round key */
 	add	x10, x3, #16
 	bmi	1f
 	bne	4f
 	mov	v5.16b, v3.16b
 	b	3f
 1:	mov	v4.16b, v3.16b
-	ld1	{v5.2d}, [x10], #16		/* load 2nd round key */
+	ld1	{v5.16b}, [x10], #16		/* load 2nd round key */
 2:	/* inner loop: 3 rounds, 2x interleaved */
 	aese	v0.16b, v4.16b
 	aesmc	v0.16b, v0.16b
 	aese	v1.16b, v4.16b
 	aesmc	v1.16b, v1.16b
-3:	ld1	{v3.2d}, [x10], #16		/* load next round key */
+3:	ld1	{v3.16b}, [x10], #16		/* load next round key */
 	aese	v0.16b, v5.16b
 	aesmc	v0.16b, v0.16b
 	aese	v1.16b, v5.16b
 	aesmc	v1.16b, v1.16b
-4:	ld1	{v4.2d}, [x10], #16		/* load next round key */
+4:	ld1	{v4.16b}, [x10], #16		/* load next round key */
 	subs	w7, w7, #3
 	aese	v0.16b, v3.16b
 	aesmc	v0.16b, v0.16b
 	aese	v1.16b, v3.16b
 	aesmc	v1.16b, v1.16b
-	ld1	{v5.2d}, [x10], #16		/* load next round key */
+	ld1	{v5.16b}, [x10], #16		/* load next round key */
 	bpl	2b
 	aese	v0.16b, v4.16b
 	aese	v1.16b, v4.16b
@@ -177,14 +178,14 @@ ENDPROC(ce_aes_ccm_final)
 	eor	v0.16b, v0.16b, v2.16b		/* xor mac with pt ^ rk[last] */
 	st1	{v1.16b}, [x0], #16		/* write output block */
 	bne	0b
-	rev	x8, x8
-	st1	{v0.2d}, [x5]			/* store mac */
+CPU_LE(	rev	x8, x8			)
+	st1	{v0.16b}, [x5]			/* store mac */
 	str	x8, [x6, #8]			/* store lsb end of ctr (BE) */
 5:	ret
 
 6:	eor	v0.16b, v0.16b, v5.16b		/* final round mac */
 	eor	v1.16b, v1.16b, v5.16b		/* final round enc */
-	st1	{v0.2d}, [x5]			/* store mac */
+	st1	{v0.16b}, [x5]			/* store mac */
 	add	w2, w2, #16			/* process partial tail block */
 7:	ldrb	w9, [x1], #1			/* get 1 byte of input */
 	umov	w6, v1.b[0]			/* get top crypted ctr byte */
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/crypto/aes-ce-cipher.c linux-libre-4.4.107-gnu/arch/arm64/crypto/aes-ce-cipher.c
--- linux-libre-4.4-gnu/arch/arm64/crypto/aes-ce-cipher.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm64/crypto/aes-ce-cipher.c	2017-12-20 04:05:01.000000000 -0500
@@ -47,24 +47,24 @@ static void aes_cipher_encrypt(struct cr
 	kernel_neon_begin_partial(4);
 
 	__asm__("	ld1	{v0.16b}, %[in]			;"
-		"	ld1	{v1.2d}, [%[key]], #16		;"
+		"	ld1	{v1.16b}, [%[key]], #16		;"
 		"	cmp	%w[rounds], #10			;"
 		"	bmi	0f				;"
 		"	bne	3f				;"
 		"	mov	v3.16b, v1.16b			;"
 		"	b	2f				;"
 		"0:	mov	v2.16b, v1.16b			;"
-		"	ld1	{v3.2d}, [%[key]], #16		;"
+		"	ld1	{v3.16b}, [%[key]], #16		;"
 		"1:	aese	v0.16b, v2.16b			;"
 		"	aesmc	v0.16b, v0.16b			;"
-		"2:	ld1	{v1.2d}, [%[key]], #16		;"
+		"2:	ld1	{v1.16b}, [%[key]], #16		;"
 		"	aese	v0.16b, v3.16b			;"
 		"	aesmc	v0.16b, v0.16b			;"
-		"3:	ld1	{v2.2d}, [%[key]], #16		;"
+		"3:	ld1	{v2.16b}, [%[key]], #16		;"
 		"	subs	%w[rounds], %w[rounds], #3	;"
 		"	aese	v0.16b, v1.16b			;"
 		"	aesmc	v0.16b, v0.16b			;"
-		"	ld1	{v3.2d}, [%[key]], #16		;"
+		"	ld1	{v3.16b}, [%[key]], #16		;"
 		"	bpl	1b				;"
 		"	aese	v0.16b, v2.16b			;"
 		"	eor	v0.16b, v0.16b, v3.16b		;"
@@ -92,24 +92,24 @@ static void aes_cipher_decrypt(struct cr
 	kernel_neon_begin_partial(4);
 
 	__asm__("	ld1	{v0.16b}, %[in]			;"
-		"	ld1	{v1.2d}, [%[key]], #16		;"
+		"	ld1	{v1.16b}, [%[key]], #16		;"
 		"	cmp	%w[rounds], #10			;"
 		"	bmi	0f				;"
 		"	bne	3f				;"
 		"	mov	v3.16b, v1.16b			;"
 		"	b	2f				;"
 		"0:	mov	v2.16b, v1.16b			;"
-		"	ld1	{v3.2d}, [%[key]], #16		;"
+		"	ld1	{v3.16b}, [%[key]], #16		;"
 		"1:	aesd	v0.16b, v2.16b			;"
 		"	aesimc	v0.16b, v0.16b			;"
-		"2:	ld1	{v1.2d}, [%[key]], #16		;"
+		"2:	ld1	{v1.16b}, [%[key]], #16		;"
 		"	aesd	v0.16b, v3.16b			;"
 		"	aesimc	v0.16b, v0.16b			;"
-		"3:	ld1	{v2.2d}, [%[key]], #16		;"
+		"3:	ld1	{v2.16b}, [%[key]], #16		;"
 		"	subs	%w[rounds], %w[rounds], #3	;"
 		"	aesd	v0.16b, v1.16b			;"
 		"	aesimc	v0.16b, v0.16b			;"
-		"	ld1	{v3.2d}, [%[key]], #16		;"
+		"	ld1	{v3.16b}, [%[key]], #16		;"
 		"	bpl	1b				;"
 		"	aesd	v0.16b, v2.16b			;"
 		"	eor	v0.16b, v0.16b, v3.16b		;"
@@ -173,7 +173,12 @@ int ce_aes_expandkey(struct crypto_aes_c
 		u32 *rki = ctx->key_enc + (i * kwords);
 		u32 *rko = rki + kwords;
 
+#ifndef CONFIG_CPU_BIG_ENDIAN
 		rko[0] = ror32(aes_sub(rki[kwords - 1]), 8) ^ rcon[i] ^ rki[0];
+#else
+		rko[0] = rol32(aes_sub(rki[kwords - 1]), 8) ^ (rcon[i] << 24) ^
+			 rki[0];
+#endif
 		rko[1] = rko[0] ^ rki[1];
 		rko[2] = rko[1] ^ rki[2];
 		rko[3] = rko[2] ^ rki[3];
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/crypto/aes-ce.S linux-libre-4.4.107-gnu/arch/arm64/crypto/aes-ce.S
--- linux-libre-4.4-gnu/arch/arm64/crypto/aes-ce.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm64/crypto/aes-ce.S	2017-12-20 04:05:01.000000000 -0500
@@ -10,6 +10,7 @@
  */
 
 #include <linux/linkage.h>
+#include <asm/assembler.h>
 
 #define AES_ENTRY(func)		ENTRY(ce_ ## func)
 #define AES_ENDPROC(func)	ENDPROC(ce_ ## func)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/crypto/aes-glue.c linux-libre-4.4.107-gnu/arch/arm64/crypto/aes-glue.c
--- linux-libre-4.4-gnu/arch/arm64/crypto/aes-glue.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm64/crypto/aes-glue.c	2017-12-20 04:05:01.000000000 -0500
@@ -211,7 +211,7 @@ static int ctr_encrypt(struct blkcipher_
 		err = blkcipher_walk_done(desc, &walk,
 					  walk.nbytes % AES_BLOCK_SIZE);
 	}
-	if (nbytes) {
+	if (walk.nbytes % AES_BLOCK_SIZE) {
 		u8 *tdst = walk.dst.virt.addr + blocks * AES_BLOCK_SIZE;
 		u8 *tsrc = walk.src.virt.addr + blocks * AES_BLOCK_SIZE;
 		u8 __aligned(8) tail[AES_BLOCK_SIZE];
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/crypto/aes-modes.S linux-libre-4.4.107-gnu/arch/arm64/crypto/aes-modes.S
--- linux-libre-4.4-gnu/arch/arm64/crypto/aes-modes.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm64/crypto/aes-modes.S	2017-12-20 04:05:01.000000000 -0500
@@ -193,15 +193,16 @@ AES_ENTRY(aes_cbc_encrypt)
 	cbz		w6, .Lcbcencloop
 
 	ld1		{v0.16b}, [x5]			/* get iv */
-	enc_prepare	w3, x2, x5
+	enc_prepare	w3, x2, x6
 
 .Lcbcencloop:
 	ld1		{v1.16b}, [x1], #16		/* get next pt block */
 	eor		v0.16b, v0.16b, v1.16b		/* ..and xor with iv */
-	encrypt_block	v0, w3, x2, x5, w6
+	encrypt_block	v0, w3, x2, x6, w7
 	st1		{v0.16b}, [x0], #16
 	subs		w4, w4, #1
 	bne		.Lcbcencloop
+	st1		{v0.16b}, [x5]			/* return iv */
 	ret
 AES_ENDPROC(aes_cbc_encrypt)
 
@@ -211,7 +212,7 @@ AES_ENTRY(aes_cbc_decrypt)
 	cbz		w6, .LcbcdecloopNx
 
 	ld1		{v7.16b}, [x5]			/* get iv */
-	dec_prepare	w3, x2, x5
+	dec_prepare	w3, x2, x6
 
 .LcbcdecloopNx:
 #if INTERLEAVE >= 2
@@ -248,7 +249,7 @@ AES_ENTRY(aes_cbc_decrypt)
 .Lcbcdecloop:
 	ld1		{v1.16b}, [x1], #16		/* get next ct block */
 	mov		v0.16b, v1.16b			/* ...and copy to v0 */
-	decrypt_block	v0, w3, x2, x5, w6
+	decrypt_block	v0, w3, x2, x6, w7
 	eor		v0.16b, v0.16b, v7.16b		/* xor with iv => pt */
 	mov		v7.16b, v1.16b			/* ct is next iv */
 	st1		{v0.16b}, [x0], #16
@@ -256,6 +257,7 @@ AES_ENTRY(aes_cbc_decrypt)
 	bne		.Lcbcdecloop
 .Lcbcdecout:
 	FRAME_POP
+	st1		{v7.16b}, [x5]			/* return iv */
 	ret
 AES_ENDPROC(aes_cbc_decrypt)
 
@@ -267,24 +269,15 @@ AES_ENDPROC(aes_cbc_decrypt)
 
 AES_ENTRY(aes_ctr_encrypt)
 	FRAME_PUSH
-	cbnz		w6, .Lctrfirst		/* 1st time around? */
-	umov		x5, v4.d[1]		/* keep swabbed ctr in reg */
-	rev		x5, x5
-#if INTERLEAVE >= 2
-	cmn		w5, w4			/* 32 bit overflow? */
-	bcs		.Lctrinc
-	add		x5, x5, #1		/* increment BE ctr */
-	b		.LctrincNx
-#else
-	b		.Lctrinc
-#endif
-.Lctrfirst:
+	cbz		w6, .Lctrnotfirst	/* 1st time around? */
 	enc_prepare	w3, x2, x6
 	ld1		{v4.16b}, [x5]
-	umov		x5, v4.d[1]		/* keep swabbed ctr in reg */
-	rev		x5, x5
+
+.Lctrnotfirst:
+	umov		x8, v4.d[1]		/* keep swabbed ctr in reg */
+	rev		x8, x8
 #if INTERLEAVE >= 2
-	cmn		w5, w4			/* 32 bit overflow? */
+	cmn		w8, w4			/* 32 bit overflow? */
 	bcs		.Lctrloop
 .LctrloopNx:
 	subs		w4, w4, #INTERLEAVE
@@ -292,11 +285,11 @@ AES_ENTRY(aes_ctr_encrypt)
 #if INTERLEAVE == 2
 	mov		v0.8b, v4.8b
 	mov		v1.8b, v4.8b
-	rev		x7, x5
-	add		x5, x5, #1
+	rev		x7, x8
+	add		x8, x8, #1
 	ins		v0.d[1], x7
-	rev		x7, x5
-	add		x5, x5, #1
+	rev		x7, x8
+	add		x8, x8, #1
 	ins		v1.d[1], x7
 	ld1		{v2.16b-v3.16b}, [x1], #32	/* get 2 input blocks */
 	do_encrypt_block2x
@@ -305,7 +298,7 @@ AES_ENTRY(aes_ctr_encrypt)
 	st1		{v0.16b-v1.16b}, [x0], #32
 #else
 	ldr		q8, =0x30000000200000001	/* addends 1,2,3[,0] */
-	dup		v7.4s, w5
+	dup		v7.4s, w8
 	mov		v0.16b, v4.16b
 	add		v7.4s, v7.4s, v8.4s
 	mov		v1.16b, v4.16b
@@ -323,18 +316,12 @@ AES_ENTRY(aes_ctr_encrypt)
 	eor		v2.16b, v7.16b, v2.16b
 	eor		v3.16b, v5.16b, v3.16b
 	st1		{v0.16b-v3.16b}, [x0], #64
-	add		x5, x5, #INTERLEAVE
+	add		x8, x8, #INTERLEAVE
 #endif
-	cbz		w4, .LctroutNx
-.LctrincNx:
-	rev		x7, x5
+	rev		x7, x8
 	ins		v4.d[1], x7
+	cbz		w4, .Lctrout
 	b		.LctrloopNx
-.LctroutNx:
-	sub		x5, x5, #1
-	rev		x7, x5
-	ins		v4.d[1], x7
-	b		.Lctrout
 .Lctr1x:
 	adds		w4, w4, #INTERLEAVE
 	beq		.Lctrout
@@ -342,30 +329,39 @@ AES_ENTRY(aes_ctr_encrypt)
 .Lctrloop:
 	mov		v0.16b, v4.16b
 	encrypt_block	v0, w3, x2, x6, w7
+
+	adds		x8, x8, #1		/* increment BE ctr */
+	rev		x7, x8
+	ins		v4.d[1], x7
+	bcs		.Lctrcarry		/* overflow? */
+
+.Lctrcarrydone:
 	subs		w4, w4, #1
 	bmi		.Lctrhalfblock		/* blocks < 0 means 1/2 block */
 	ld1		{v3.16b}, [x1], #16
 	eor		v3.16b, v0.16b, v3.16b
 	st1		{v3.16b}, [x0], #16
-	beq		.Lctrout
-.Lctrinc:
-	adds		x5, x5, #1		/* increment BE ctr */
-	rev		x7, x5
-	ins		v4.d[1], x7
-	bcc		.Lctrloop		/* no overflow? */
-	umov		x7, v4.d[0]		/* load upper word of ctr  */
-	rev		x7, x7			/* ... to handle the carry */
-	add		x7, x7, #1
-	rev		x7, x7
-	ins		v4.d[0], x7
-	b		.Lctrloop
+	bne		.Lctrloop
+
+.Lctrout:
+	st1		{v4.16b}, [x5]		/* return next CTR value */
+	FRAME_POP
+	ret
+
 .Lctrhalfblock:
 	ld1		{v3.8b}, [x1]
 	eor		v3.8b, v0.8b, v3.8b
 	st1		{v3.8b}, [x0]
-.Lctrout:
 	FRAME_POP
 	ret
+
+.Lctrcarry:
+	umov		x7, v4.d[0]		/* load upper word of ctr  */
+	rev		x7, x7			/* ... to handle the carry */
+	add		x7, x7, #1
+	rev		x7, x7
+	ins		v4.d[0], x7
+	b		.Lctrcarrydone
 AES_ENDPROC(aes_ctr_encrypt)
 	.ltorg
 
@@ -386,7 +382,8 @@ AES_ENDPROC(aes_ctr_encrypt)
 	.endm
 
 .Lxts_mul_x:
-	.word		1, 0, 0x87, 0
+CPU_LE(	.quad		1, 0x87		)
+CPU_BE(	.quad		0x87, 1		)
 
 AES_ENTRY(aes_xts_encrypt)
 	FRAME_PUSH
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/crypto/aes-neon.S linux-libre-4.4.107-gnu/arch/arm64/crypto/aes-neon.S
--- linux-libre-4.4-gnu/arch/arm64/crypto/aes-neon.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm64/crypto/aes-neon.S	2017-12-20 04:05:01.000000000 -0500
@@ -9,6 +9,7 @@
  */
 
 #include <linux/linkage.h>
+#include <asm/assembler.h>
 
 #define AES_ENTRY(func)		ENTRY(neon_ ## func)
 #define AES_ENDPROC(func)	ENDPROC(neon_ ## func)
@@ -83,13 +84,13 @@
 	.endm
 
 	.macro		do_block, enc, in, rounds, rk, rkp, i
-	ld1		{v15.16b}, [\rk]
+	ld1		{v15.4s}, [\rk]
 	add		\rkp, \rk, #16
 	mov		\i, \rounds
 1111:	eor		\in\().16b, \in\().16b, v15.16b		/* ^round key */
 	tbl		\in\().16b, {\in\().16b}, v13.16b	/* ShiftRows */
 	sub_bytes	\in
-	ld1		{v15.16b}, [\rkp], #16
+	ld1		{v15.4s}, [\rkp], #16
 	subs		\i, \i, #1
 	beq		2222f
 	.if		\enc == 1
@@ -229,7 +230,7 @@
 	.endm
 
 	.macro		do_block_2x, enc, in0, in1 rounds, rk, rkp, i
-	ld1		{v15.16b}, [\rk]
+	ld1		{v15.4s}, [\rk]
 	add		\rkp, \rk, #16
 	mov		\i, \rounds
 1111:	eor		\in0\().16b, \in0\().16b, v15.16b	/* ^round key */
@@ -237,7 +238,7 @@
 	sub_bytes_2x	\in0, \in1
 	tbl		\in0\().16b, {\in0\().16b}, v13.16b	/* ShiftRows */
 	tbl		\in1\().16b, {\in1\().16b}, v13.16b	/* ShiftRows */
-	ld1		{v15.16b}, [\rkp], #16
+	ld1		{v15.4s}, [\rkp], #16
 	subs		\i, \i, #1
 	beq		2222f
 	.if		\enc == 1
@@ -254,7 +255,7 @@
 	.endm
 
 	.macro		do_block_4x, enc, in0, in1, in2, in3, rounds, rk, rkp, i
-	ld1		{v15.16b}, [\rk]
+	ld1		{v15.4s}, [\rk]
 	add		\rkp, \rk, #16
 	mov		\i, \rounds
 1111:	eor		\in0\().16b, \in0\().16b, v15.16b	/* ^round key */
@@ -266,7 +267,7 @@
 	tbl		\in1\().16b, {\in1\().16b}, v13.16b	/* ShiftRows */
 	tbl		\in2\().16b, {\in2\().16b}, v13.16b	/* ShiftRows */
 	tbl		\in3\().16b, {\in3\().16b}, v13.16b	/* ShiftRows */
-	ld1		{v15.16b}, [\rkp], #16
+	ld1		{v15.4s}, [\rkp], #16
 	subs		\i, \i, #1
 	beq		2222f
 	.if		\enc == 1
@@ -306,12 +307,16 @@
 	.text
 	.align		4
 .LForward_ShiftRows:
-	.byte		0x0, 0x5, 0xa, 0xf, 0x4, 0x9, 0xe, 0x3
-	.byte		0x8, 0xd, 0x2, 0x7, 0xc, 0x1, 0x6, 0xb
+CPU_LE(	.byte		0x0, 0x5, 0xa, 0xf, 0x4, 0x9, 0xe, 0x3	)
+CPU_LE(	.byte		0x8, 0xd, 0x2, 0x7, 0xc, 0x1, 0x6, 0xb	)
+CPU_BE(	.byte		0xb, 0x6, 0x1, 0xc, 0x7, 0x2, 0xd, 0x8	)
+CPU_BE(	.byte		0x3, 0xe, 0x9, 0x4, 0xf, 0xa, 0x5, 0x0	)
 
 .LReverse_ShiftRows:
-	.byte		0x0, 0xd, 0xa, 0x7, 0x4, 0x1, 0xe, 0xb
-	.byte		0x8, 0x5, 0x2, 0xf, 0xc, 0x9, 0x6, 0x3
+CPU_LE(	.byte		0x0, 0xd, 0xa, 0x7, 0x4, 0x1, 0xe, 0xb	)
+CPU_LE(	.byte		0x8, 0x5, 0x2, 0xf, 0xc, 0x9, 0x6, 0x3	)
+CPU_BE(	.byte		0x3, 0x6, 0x9, 0xc, 0xf, 0x2, 0x5, 0x8	)
+CPU_BE(	.byte		0xb, 0xe, 0x1, 0x4, 0x7, 0xa, 0xd, 0x0	)
 
 .LForward_Sbox:
 	.byte		0x63, 0x7c, 0x77, 0x7b, 0xf2, 0x6b, 0x6f, 0xc5
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/crypto/ghash-ce-core.S linux-libre-4.4.107-gnu/arch/arm64/crypto/ghash-ce-core.S
--- linux-libre-4.4-gnu/arch/arm64/crypto/ghash-ce-core.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm64/crypto/ghash-ce-core.S	2017-12-20 04:05:01.000000000 -0500
@@ -29,8 +29,8 @@
 	 *			   struct ghash_key const *k, const char *head)
 	 */
 ENTRY(pmull_ghash_update)
-	ld1		{SHASH.16b}, [x3]
-	ld1		{XL.16b}, [x1]
+	ld1		{SHASH.2d}, [x3]
+	ld1		{XL.2d}, [x1]
 	movi		MASK.16b, #0xe1
 	ext		SHASH2.16b, SHASH.16b, SHASH.16b, #8
 	shl		MASK.2d, MASK.2d, #57
@@ -74,6 +74,6 @@ CPU_LE(	rev64		T1.16b, T1.16b	)
 
 	cbnz		w0, 0b
 
-	st1		{XL.16b}, [x1]
+	st1		{XL.2d}, [x1]
 	ret
 ENDPROC(pmull_ghash_update)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/crypto/sha1-ce-core.S linux-libre-4.4.107-gnu/arch/arm64/crypto/sha1-ce-core.S
--- linux-libre-4.4-gnu/arch/arm64/crypto/sha1-ce-core.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm64/crypto/sha1-ce-core.S	2017-12-20 04:05:01.000000000 -0500
@@ -78,7 +78,7 @@ ENTRY(sha1_ce_transform)
 	ld1r		{k3.4s}, [x6]
 
 	/* load state */
-	ldr		dga, [x0]
+	ld1		{dgav.4s}, [x0]
 	ldr		dgb, [x0, #16]
 
 	/* load sha1_ce_state::finalize */
@@ -144,7 +144,7 @@ CPU_LE(	rev32		v11.16b, v11.16b	)
 	b		1b
 
 	/* store new state */
-3:	str		dga, [x0]
+3:	st1		{dgav.4s}, [x0]
 	str		dgb, [x0, #16]
 	ret
 ENDPROC(sha1_ce_transform)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/crypto/sha2-ce-core.S linux-libre-4.4.107-gnu/arch/arm64/crypto/sha2-ce-core.S
--- linux-libre-4.4-gnu/arch/arm64/crypto/sha2-ce-core.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm64/crypto/sha2-ce-core.S	2017-12-20 04:05:01.000000000 -0500
@@ -85,7 +85,7 @@ ENTRY(sha2_ce_transform)
 	ld1		{v12.4s-v15.4s}, [x8]
 
 	/* load state */
-	ldp		dga, dgb, [x0]
+	ld1		{dgav.4s, dgbv.4s}, [x0]
 
 	/* load sha256_ce_state::finalize */
 	ldr		w4, [x0, #:lo12:sha256_ce_offsetof_finalize]
@@ -148,6 +148,6 @@ CPU_LE(	rev32		v19.16b, v19.16b	)
 	b		1b
 
 	/* store new state */
-3:	stp		dga, dgb, [x0]
+3:	st1		{dgav.4s, dgbv.4s}, [x0]
 	ret
 ENDPROC(sha2_ce_transform)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/include/asm/acpi.h linux-libre-4.4.107-gnu/arch/arm64/include/asm/acpi.h
--- linux-libre-4.4-gnu/arch/arm64/include/asm/acpi.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm64/include/asm/acpi.h	2017-12-20 04:05:01.000000000 -0500
@@ -22,9 +22,9 @@
 #define ACPI_MADT_GICC_LENGTH	\
 	(acpi_gbl_FADT.header.revision < 6 ? 76 : 80)
 
-#define BAD_MADT_GICC_ENTRY(entry, end)						\
-	(!(entry) || (unsigned long)(entry) + sizeof(*(entry)) > (end) ||	\
-	 (entry)->header.length != ACPI_MADT_GICC_LENGTH)
+#define BAD_MADT_GICC_ENTRY(entry, end)					\
+	(!(entry) || (entry)->header.length != ACPI_MADT_GICC_LENGTH ||	\
+	(unsigned long)(entry) + ACPI_MADT_GICC_LENGTH > (end))
 
 /* Basic configuration for ACPI */
 #ifdef	CONFIG_ACPI
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/include/asm/arch_gicv3.h linux-libre-4.4.107-gnu/arch/arm64/include/asm/arch_gicv3.h
--- linux-libre-4.4-gnu/arch/arm64/include/asm/arch_gicv3.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm64/include/asm/arch_gicv3.h	2017-12-20 04:05:01.000000000 -0500
@@ -103,6 +103,7 @@ static inline u64 gic_read_iar_common(vo
 	u64 irqstat;
 
 	asm volatile("mrs_s %0, " __stringify(ICC_IAR1_EL1) : "=r" (irqstat));
+	dsb(sy);
 	return irqstat;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/include/asm/asm-uaccess.h linux-libre-4.4.107-gnu/arch/arm64/include/asm/asm-uaccess.h
--- linux-libre-4.4-gnu/arch/arm64/include/asm/asm-uaccess.h	1969-12-31 19:00:00.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm64/include/asm/asm-uaccess.h	2017-12-20 04:05:01.000000000 -0500
@@ -0,0 +1,13 @@
+#ifndef __ASM_ASM_UACCESS_H
+#define __ASM_ASM_UACCESS_H
+
+/*
+ * Remove the address tag from a virtual address, if present.
+ */
+	.macro	clear_address_tag, dst, addr
+	tst	\addr, #(1 << 55)
+	bic	\dst, \addr, #(0xff << 56)
+	csel	\dst, \dst, \addr, eq
+	.endm
+
+#endif
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/include/asm/barrier.h linux-libre-4.4.107-gnu/arch/arm64/include/asm/barrier.h
--- linux-libre-4.4-gnu/arch/arm64/include/asm/barrier.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm64/include/asm/barrier.h	2017-12-20 04:05:01.000000000 -0500
@@ -41,23 +41,33 @@
 
 #define smp_store_release(p, v)						\
 do {									\
+	union { typeof(*p) __val; char __c[1]; } __u =			\
+		{ .__val = (__force typeof(*p)) (v) }; 			\
 	compiletime_assert_atomic_type(*p);				\
 	switch (sizeof(*p)) {						\
 	case 1:								\
 		asm volatile ("stlrb %w1, %0"				\
-				: "=Q" (*p) : "r" (v) : "memory");	\
+				: "=Q" (*p)				\
+				: "r" (*(__u8 *)__u.__c)		\
+				: "memory");				\
 		break;							\
 	case 2:								\
 		asm volatile ("stlrh %w1, %0"				\
-				: "=Q" (*p) : "r" (v) : "memory");	\
+				: "=Q" (*p)				\
+				: "r" (*(__u16 *)__u.__c)		\
+				: "memory");				\
 		break;							\
 	case 4:								\
 		asm volatile ("stlr %w1, %0"				\
-				: "=Q" (*p) : "r" (v) : "memory");	\
+				: "=Q" (*p)				\
+				: "r" (*(__u32 *)__u.__c)		\
+				: "memory");				\
 		break;							\
 	case 8:								\
 		asm volatile ("stlr %1, %0"				\
-				: "=Q" (*p) : "r" (v) : "memory");	\
+				: "=Q" (*p)				\
+				: "r" (*(__u64 *)__u.__c)		\
+				: "memory");				\
 		break;							\
 	}								\
 } while (0)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/include/asm/cmpxchg.h linux-libre-4.4.107-gnu/arch/arm64/include/asm/cmpxchg.h
--- linux-libre-4.4-gnu/arch/arm64/include/asm/cmpxchg.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm64/include/asm/cmpxchg.h	2017-12-20 04:05:01.000000000 -0500
@@ -49,7 +49,7 @@ static inline unsigned long __xchg_case_
 	"	swp" #acq_lse #rel #sz "\t%" #w "3, %" #w "0, %2\n"	\
 	"	nop\n"							\
 	"	" #nop_lse)						\
-	: "=&r" (ret), "=&r" (tmp), "+Q" (*(u8 *)ptr)			\
+	: "=&r" (ret), "=&r" (tmp), "+Q" (*(unsigned long *)ptr)	\
 	: "r" (x)							\
 	: cl);								\
 									\
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/include/asm/cpufeature.h linux-libre-4.4.107-gnu/arch/arm64/include/asm/cpufeature.h
--- linux-libre-4.4-gnu/arch/arm64/include/asm/cpufeature.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm64/include/asm/cpufeature.h	2017-12-20 04:05:01.000000000 -0500
@@ -30,8 +30,9 @@
 #define ARM64_HAS_LSE_ATOMICS			5
 #define ARM64_WORKAROUND_CAVIUM_23154		6
 #define ARM64_WORKAROUND_834220			7
+#define ARM64_WORKAROUND_CAVIUM_27456		8
 
-#define ARM64_NCAPS				8
+#define ARM64_NCAPS				9
 
 #ifndef __ASSEMBLY__
 
@@ -76,7 +77,7 @@ struct arm64_cpu_capabilities {
 	const char *desc;
 	u16 capability;
 	bool (*matches)(const struct arm64_cpu_capabilities *);
-	void (*enable)(void *);		/* Called on all active CPUs */
+	int (*enable)(void *);		/* Called on all active CPUs */
 	union {
 		struct {	/* To be used for erratum handling only */
 			u32 midr_model;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/include/asm/elf.h linux-libre-4.4.107-gnu/arch/arm64/include/asm/elf.h
--- linux-libre-4.4-gnu/arch/arm64/include/asm/elf.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm64/include/asm/elf.h	2017-12-20 04:05:01.000000000 -0500
@@ -120,12 +120,11 @@ typedef struct user_fpsimd_state elf_fpr
 #define ELF_EXEC_PAGESIZE	PAGE_SIZE
 
 /*
- * This is the location that an ET_DYN program is loaded if exec'ed.  Typical
- * use of this is to invoke "./ld.so someprog" to test out a new version of
- * the loader.  We need to make sure that it is out of the way of the program
- * that it will "exec", and that there is sufficient room for the brk.
+ * This is the base location for PIE (ET_DYN with INTERP) loads. On
+ * 64-bit, this is above 4GB to leave the entire 32-bit address
+ * space open for things that want to use the area for 32-bit pointers.
  */
-#define ELF_ET_DYN_BASE	(2 * TASK_SIZE_64 / 3)
+#define ELF_ET_DYN_BASE		(2 * TASK_SIZE_64 / 3)
 
 /*
  * When the program starts, a1 contains a pointer to a function to be
@@ -136,6 +135,7 @@ typedef struct user_fpsimd_state elf_fpr
 
 #define SET_PERSONALITY(ex)		clear_thread_flag(TIF_32BIT);
 
+/* update AT_VECTOR_SIZE_ARCH if the number of NEW_AUX_ENT entries changes */
 #define ARCH_DLINFO							\
 do {									\
 	NEW_AUX_ENT(AT_SYSINFO_EHDR,					\
@@ -156,15 +156,16 @@ extern int arch_setup_additional_pages(s
 #define STACK_RND_MASK			(0x3ffff >> (PAGE_SHIFT - 12))
 #endif
 
-#ifdef CONFIG_COMPAT
-
 #ifdef __AARCH64EB__
 #define COMPAT_ELF_PLATFORM		("v8b")
 #else
 #define COMPAT_ELF_PLATFORM		("v8l")
 #endif
 
-#define COMPAT_ELF_ET_DYN_BASE		(2 * TASK_SIZE_32 / 3)
+#ifdef CONFIG_COMPAT
+
+/* PIE load location for compat arm. Must match ARM ELF_ET_DYN_BASE. */
+#define COMPAT_ELF_ET_DYN_BASE		0x000400000UL
 
 /* AArch32 registers. */
 #define COMPAT_ELF_NGREG		18
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/include/asm/futex.h linux-libre-4.4.107-gnu/arch/arm64/include/asm/futex.h
--- linux-libre-4.4-gnu/arch/arm64/include/asm/futex.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm64/include/asm/futex.h	2017-12-20 04:05:01.000000000 -0500
@@ -121,6 +121,7 @@ futex_atomic_cmpxchg_inatomic(u32 *uval,
 		return -EFAULT;
 
 	asm volatile("// futex_atomic_cmpxchg_inatomic\n"
+ALTERNATIVE("nop", SET_PSTATE_PAN(0), ARM64_HAS_PAN, CONFIG_ARM64_PAN)
 "	prfm	pstl1strm, %2\n"
 "1:	ldxr	%w1, %2\n"
 "	sub	%w3, %w1, %w4\n"
@@ -137,6 +138,7 @@ futex_atomic_cmpxchg_inatomic(u32 *uval,
 "	.align	3\n"
 "	.quad	1b, 4b, 2b, 4b\n"
 "	.popsection\n"
+ALTERNATIVE("nop", SET_PSTATE_PAN(1), ARM64_HAS_PAN, CONFIG_ARM64_PAN)
 	: "+r" (ret), "=&r" (val), "+Q" (*uaddr), "=&r" (tmp)
 	: "r" (oldval), "r" (newval), "Ir" (-EFAULT)
 	: "memory");
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/include/asm/kvm_arm.h linux-libre-4.4.107-gnu/arch/arm64/include/asm/kvm_arm.h
--- linux-libre-4.4-gnu/arch/arm64/include/asm/kvm_arm.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm64/include/asm/kvm_arm.h	2017-12-20 04:05:01.000000000 -0500
@@ -107,8 +107,6 @@
 #define TCR_EL2_MASK	(TCR_EL2_TG0 | TCR_EL2_SH0 | \
 			 TCR_EL2_ORGN0 | TCR_EL2_IRGN0 | TCR_EL2_T0SZ)
 
-#define TCR_EL2_FLAGS	(TCR_EL2_RES1 | TCR_EL2_PS_40B)
-
 /* VTCR_EL2 Registers bits */
 #define VTCR_EL2_RES1		(1 << 31)
 #define VTCR_EL2_PS_MASK	(7 << 16)
@@ -166,8 +164,7 @@
 #define VTTBR_X		(37 - VTCR_EL2_T0SZ_40B)
 #endif
 
-#define VTTBR_BADDR_SHIFT (VTTBR_X - 1)
-#define VTTBR_BADDR_MASK  (((UL(1) << (PHYS_MASK_SHIFT - VTTBR_X)) - 1) << VTTBR_BADDR_SHIFT)
+#define VTTBR_BADDR_MASK  (((UL(1) << (PHYS_MASK_SHIFT - VTTBR_X)) - 1) << VTTBR_X)
 #define VTTBR_VMID_SHIFT  (UL(48))
 #define VTTBR_VMID_MASK	  (UL(0xFF) << VTTBR_VMID_SHIFT)
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/include/asm/kvm_mmu.h linux-libre-4.4.107-gnu/arch/arm64/include/asm/kvm_mmu.h
--- linux-libre-4.4-gnu/arch/arm64/include/asm/kvm_mmu.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm64/include/asm/kvm_mmu.h	2017-12-20 04:05:01.000000000 -0500
@@ -236,8 +236,7 @@ static inline void __coherent_cache_gues
 {
 	void *va = page_address(pfn_to_page(pfn));
 
-	if (!vcpu_has_cache_enabled(vcpu) || ipa_uncached)
-		kvm_flush_dcache_to_poc(va, size);
+	kvm_flush_dcache_to_poc(va, size);
 
 	if (!icache_is_aliasing()) {		/* PIPT */
 		flush_icache_range((unsigned long)va,
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/include/asm/opcodes.h linux-libre-4.4.107-gnu/arch/arm64/include/asm/opcodes.h
--- linux-libre-4.4-gnu/arch/arm64/include/asm/opcodes.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm64/include/asm/opcodes.h	2017-12-20 04:05:01.000000000 -0500
@@ -1 +1,5 @@
+#ifdef CONFIG_CPU_BIG_ENDIAN
+#define CONFIG_CPU_ENDIAN_BE8 CONFIG_CPU_BIG_ENDIAN
+#endif
+
 #include <../../arm/include/asm/opcodes.h>
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/include/asm/percpu.h linux-libre-4.4.107-gnu/arch/arm64/include/asm/percpu.h
--- linux-libre-4.4-gnu/arch/arm64/include/asm/percpu.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm64/include/asm/percpu.h	2017-12-20 04:05:01.000000000 -0500
@@ -44,48 +44,44 @@ static inline unsigned long __percpu_##o
 									\
 	switch (size) {							\
 	case 1:								\
-		do {							\
-			asm ("//__per_cpu_" #op "_1\n"			\
-			"ldxrb	  %w[ret], %[ptr]\n"			\
+		asm ("//__per_cpu_" #op "_1\n"				\
+		"1:	ldxrb	  %w[ret], %[ptr]\n"			\
 			#asm_op " %w[ret], %w[ret], %w[val]\n"		\
-			"stxrb	  %w[loop], %w[ret], %[ptr]\n"		\
-			: [loop] "=&r" (loop), [ret] "=&r" (ret),	\
-			  [ptr] "+Q"(*(u8 *)ptr)			\
-			: [val] "Ir" (val));				\
-		} while (loop);						\
+		"	stxrb	  %w[loop], %w[ret], %[ptr]\n"		\
+		"	cbnz	  %w[loop], 1b"				\
+		: [loop] "=&r" (loop), [ret] "=&r" (ret),		\
+		  [ptr] "+Q"(*(u8 *)ptr)				\
+		: [val] "Ir" (val));					\
 		break;							\
 	case 2:								\
-		do {							\
-			asm ("//__per_cpu_" #op "_2\n"			\
-			"ldxrh	  %w[ret], %[ptr]\n"			\
+		asm ("//__per_cpu_" #op "_2\n"				\
+		"1:	ldxrh	  %w[ret], %[ptr]\n"			\
 			#asm_op " %w[ret], %w[ret], %w[val]\n"		\
-			"stxrh	  %w[loop], %w[ret], %[ptr]\n"		\
-			: [loop] "=&r" (loop), [ret] "=&r" (ret),	\
-			  [ptr]  "+Q"(*(u16 *)ptr)			\
-			: [val] "Ir" (val));				\
-		} while (loop);						\
+		"	stxrh	  %w[loop], %w[ret], %[ptr]\n"		\
+		"	cbnz	  %w[loop], 1b"				\
+		: [loop] "=&r" (loop), [ret] "=&r" (ret),		\
+		  [ptr]  "+Q"(*(u16 *)ptr)				\
+		: [val] "Ir" (val));					\
 		break;							\
 	case 4:								\
-		do {							\
-			asm ("//__per_cpu_" #op "_4\n"			\
-			"ldxr	  %w[ret], %[ptr]\n"			\
+		asm ("//__per_cpu_" #op "_4\n"				\
+		"1:	ldxr	  %w[ret], %[ptr]\n"			\
 			#asm_op " %w[ret], %w[ret], %w[val]\n"		\
-			"stxr	  %w[loop], %w[ret], %[ptr]\n"		\
-			: [loop] "=&r" (loop), [ret] "=&r" (ret),	\
-			  [ptr] "+Q"(*(u32 *)ptr)			\
-			: [val] "Ir" (val));				\
-		} while (loop);						\
+		"	stxr	  %w[loop], %w[ret], %[ptr]\n"		\
+		"	cbnz	  %w[loop], 1b"				\
+		: [loop] "=&r" (loop), [ret] "=&r" (ret),		\
+		  [ptr] "+Q"(*(u32 *)ptr)				\
+		: [val] "Ir" (val));					\
 		break;							\
 	case 8:								\
-		do {							\
-			asm ("//__per_cpu_" #op "_8\n"			\
-			"ldxr	  %[ret], %[ptr]\n"			\
+		asm ("//__per_cpu_" #op "_8\n"				\
+		"1:	ldxr	  %[ret], %[ptr]\n"			\
 			#asm_op " %[ret], %[ret], %[val]\n"		\
-			"stxr	  %w[loop], %[ret], %[ptr]\n"		\
-			: [loop] "=&r" (loop), [ret] "=&r" (ret),	\
-			  [ptr] "+Q"(*(u64 *)ptr)			\
-			: [val] "Ir" (val));				\
-		} while (loop);						\
+		"	stxr	  %w[loop], %[ret], %[ptr]\n"		\
+		"	cbnz	  %w[loop], 1b"				\
+		: [loop] "=&r" (loop), [ret] "=&r" (ret),		\
+		  [ptr] "+Q"(*(u64 *)ptr)				\
+		: [val] "Ir" (val));					\
 		break;							\
 	default:							\
 		BUILD_BUG();						\
@@ -150,44 +146,40 @@ static inline unsigned long __percpu_xch
 
 	switch (size) {
 	case 1:
-		do {
-			asm ("//__percpu_xchg_1\n"
-			"ldxrb %w[ret], %[ptr]\n"
-			"stxrb %w[loop], %w[val], %[ptr]\n"
-			: [loop] "=&r"(loop), [ret] "=&r"(ret),
-			  [ptr] "+Q"(*(u8 *)ptr)
-			: [val] "r" (val));
-		} while (loop);
+		asm ("//__percpu_xchg_1\n"
+		"1:	ldxrb	%w[ret], %[ptr]\n"
+		"	stxrb	%w[loop], %w[val], %[ptr]\n"
+		"	cbnz	%w[loop], 1b"
+		: [loop] "=&r"(loop), [ret] "=&r"(ret),
+		  [ptr] "+Q"(*(u8 *)ptr)
+		: [val] "r" (val));
 		break;
 	case 2:
-		do {
-			asm ("//__percpu_xchg_2\n"
-			"ldxrh %w[ret], %[ptr]\n"
-			"stxrh %w[loop], %w[val], %[ptr]\n"
-			: [loop] "=&r"(loop), [ret] "=&r"(ret),
-			  [ptr] "+Q"(*(u16 *)ptr)
-			: [val] "r" (val));
-		} while (loop);
+		asm ("//__percpu_xchg_2\n"
+		"1:	ldxrh	%w[ret], %[ptr]\n"
+		"	stxrh	%w[loop], %w[val], %[ptr]\n"
+		"	cbnz	%w[loop], 1b"
+		: [loop] "=&r"(loop), [ret] "=&r"(ret),
+		  [ptr] "+Q"(*(u16 *)ptr)
+		: [val] "r" (val));
 		break;
 	case 4:
-		do {
-			asm ("//__percpu_xchg_4\n"
-			"ldxr %w[ret], %[ptr]\n"
-			"stxr %w[loop], %w[val], %[ptr]\n"
-			: [loop] "=&r"(loop), [ret] "=&r"(ret),
-			  [ptr] "+Q"(*(u32 *)ptr)
-			: [val] "r" (val));
-		} while (loop);
+		asm ("//__percpu_xchg_4\n"
+		"1:	ldxr	%w[ret], %[ptr]\n"
+		"	stxr	%w[loop], %w[val], %[ptr]\n"
+		"	cbnz	%w[loop], 1b"
+		: [loop] "=&r"(loop), [ret] "=&r"(ret),
+		  [ptr] "+Q"(*(u32 *)ptr)
+		: [val] "r" (val));
 		break;
 	case 8:
-		do {
-			asm ("//__percpu_xchg_8\n"
-			"ldxr %[ret], %[ptr]\n"
-			"stxr %w[loop], %[val], %[ptr]\n"
-			: [loop] "=&r"(loop), [ret] "=&r"(ret),
-			  [ptr] "+Q"(*(u64 *)ptr)
-			: [val] "r" (val));
-		} while (loop);
+		asm ("//__percpu_xchg_8\n"
+		"1:	ldxr	%[ret], %[ptr]\n"
+		"	stxr	%w[loop], %[val], %[ptr]\n"
+		"	cbnz	%w[loop], 1b"
+		: [loop] "=&r"(loop), [ret] "=&r"(ret),
+		  [ptr] "+Q"(*(u64 *)ptr)
+		: [val] "r" (val));
 		break;
 	default:
 		BUILD_BUG();
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/include/asm/pgtable.h linux-libre-4.4.107-gnu/arch/arm64/include/asm/pgtable.h
--- linux-libre-4.4-gnu/arch/arm64/include/asm/pgtable.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm64/include/asm/pgtable.h	2017-12-20 04:05:01.000000000 -0500
@@ -34,7 +34,7 @@
 /*
  * VMALLOC and SPARSEMEM_VMEMMAP ranges.
  *
- * VMEMAP_SIZE: allows the whole VA space to be covered by a struct page array
+ * VMEMAP_SIZE: allows the whole linear region to be covered by a struct page array
  *	(rounded up to PUD_SIZE).
  * VMALLOC_START: beginning of the kernel VA space
  * VMALLOC_END: extends to the available space below vmmemmap, PCI I/O space,
@@ -51,7 +51,9 @@
 
 #define VMALLOC_END		(PAGE_OFFSET - PUD_SIZE - VMEMMAP_SIZE - SZ_64K)
 
-#define vmemmap			((struct page *)(VMALLOC_END + SZ_64K))
+#define VMEMMAP_START		(VMALLOC_END + SZ_64K)
+#define vmemmap			((struct page *)VMEMMAP_START - \
+				 SECTION_ALIGN_DOWN(memstart_addr >> PAGE_SHIFT))
 
 #define FIRST_USER_ADDRESS	0UL
 
@@ -67,11 +69,11 @@ extern void __pgd_error(const char *file
 #define PROT_DEFAULT		(PTE_TYPE_PAGE | PTE_AF | PTE_SHARED)
 #define PROT_SECT_DEFAULT	(PMD_TYPE_SECT | PMD_SECT_AF | PMD_SECT_S)
 
-#define PROT_DEVICE_nGnRnE	(PROT_DEFAULT | PTE_PXN | PTE_UXN | PTE_ATTRINDX(MT_DEVICE_nGnRnE))
-#define PROT_DEVICE_nGnRE	(PROT_DEFAULT | PTE_PXN | PTE_UXN | PTE_ATTRINDX(MT_DEVICE_nGnRE))
-#define PROT_NORMAL_NC		(PROT_DEFAULT | PTE_PXN | PTE_UXN | PTE_ATTRINDX(MT_NORMAL_NC))
-#define PROT_NORMAL_WT		(PROT_DEFAULT | PTE_PXN | PTE_UXN | PTE_ATTRINDX(MT_NORMAL_WT))
-#define PROT_NORMAL		(PROT_DEFAULT | PTE_PXN | PTE_UXN | PTE_ATTRINDX(MT_NORMAL))
+#define PROT_DEVICE_nGnRnE	(PROT_DEFAULT | PTE_PXN | PTE_UXN | PTE_DIRTY | PTE_WRITE | PTE_ATTRINDX(MT_DEVICE_nGnRnE))
+#define PROT_DEVICE_nGnRE	(PROT_DEFAULT | PTE_PXN | PTE_UXN | PTE_DIRTY | PTE_WRITE | PTE_ATTRINDX(MT_DEVICE_nGnRE))
+#define PROT_NORMAL_NC		(PROT_DEFAULT | PTE_PXN | PTE_UXN | PTE_DIRTY | PTE_WRITE | PTE_ATTRINDX(MT_NORMAL_NC))
+#define PROT_NORMAL_WT		(PROT_DEFAULT | PTE_PXN | PTE_UXN | PTE_DIRTY | PTE_WRITE | PTE_ATTRINDX(MT_NORMAL_WT))
+#define PROT_NORMAL		(PROT_DEFAULT | PTE_PXN | PTE_UXN | PTE_DIRTY | PTE_WRITE | PTE_ATTRINDX(MT_NORMAL))
 
 #define PROT_SECT_DEVICE_nGnRE	(PROT_SECT_DEFAULT | PMD_SECT_PXN | PMD_SECT_UXN | PMD_ATTRINDX(MT_DEVICE_nGnRE))
 #define PROT_SECT_NORMAL	(PROT_SECT_DEFAULT | PMD_SECT_PXN | PMD_SECT_UXN | PMD_ATTRINDX(MT_NORMAL))
@@ -81,7 +83,7 @@ extern void __pgd_error(const char *file
 
 #define PAGE_KERNEL		__pgprot(_PAGE_DEFAULT | PTE_PXN | PTE_UXN | PTE_DIRTY | PTE_WRITE)
 #define PAGE_KERNEL_RO		__pgprot(_PAGE_DEFAULT | PTE_PXN | PTE_UXN | PTE_DIRTY | PTE_RDONLY)
-#define PAGE_KERNEL_ROX	__pgprot(_PAGE_DEFAULT | PTE_UXN | PTE_DIRTY | PTE_RDONLY)
+#define PAGE_KERNEL_ROX		__pgprot(_PAGE_DEFAULT | PTE_UXN | PTE_DIRTY | PTE_RDONLY)
 #define PAGE_KERNEL_EXEC	__pgprot(_PAGE_DEFAULT | PTE_UXN | PTE_DIRTY | PTE_WRITE)
 #define PAGE_KERNEL_EXEC_CONT	__pgprot(_PAGE_DEFAULT | PTE_UXN | PTE_DIRTY | PTE_WRITE | PTE_CONT)
 
@@ -153,6 +155,7 @@ extern struct page *empty_zero_page;
 #define pte_write(pte)		(!!(pte_val(pte) & PTE_WRITE))
 #define pte_exec(pte)		(!(pte_val(pte) & PTE_UXN))
 #define pte_cont(pte)		(!!(pte_val(pte) & PTE_CONT))
+#define pte_user(pte)		(!!(pte_val(pte) & PTE_USER))
 
 #ifdef CONFIG_ARM64_HW_AFDBM
 #define pte_hw_dirty(pte)	(pte_write(pte) && !(pte_val(pte) & PTE_RDONLY))
@@ -163,8 +166,6 @@ extern struct page *empty_zero_page;
 #define pte_dirty(pte)		(pte_sw_dirty(pte) || pte_hw_dirty(pte))
 
 #define pte_valid(pte)		(!!(pte_val(pte) & PTE_VALID))
-#define pte_valid_user(pte) \
-	((pte_val(pte) & (PTE_VALID | PTE_USER)) == (PTE_VALID | PTE_USER))
 #define pte_valid_not_user(pte) \
 	((pte_val(pte) & (PTE_VALID | PTE_USER)) == PTE_VALID)
 
@@ -262,13 +263,13 @@ extern void __sync_icache_dcache(pte_t p
 static inline void set_pte_at(struct mm_struct *mm, unsigned long addr,
 			      pte_t *ptep, pte_t pte)
 {
-	if (pte_valid_user(pte)) {
-		if (!pte_special(pte) && pte_exec(pte))
-			__sync_icache_dcache(pte, addr);
+	if (pte_present(pte)) {
 		if (pte_sw_dirty(pte) && pte_write(pte))
 			pte_val(pte) &= ~PTE_RDONLY;
 		else
 			pte_val(pte) |= PTE_RDONLY;
+		if (pte_user(pte) && pte_exec(pte) && !pte_special(pte))
+			__sync_icache_dcache(pte, addr);
 	}
 
 	/*
@@ -346,6 +347,7 @@ void pmdp_splitting_flush(struct vm_area
 #endif /* CONFIG_HAVE_RCU_TABLE_FREE */
 #endif /* CONFIG_TRANSPARENT_HUGEPAGE */
 
+#define pmd_present(pmd)	pte_present(pmd_pte(pmd))
 #define pmd_dirty(pmd)		pte_dirty(pmd_pte(pmd))
 #define pmd_young(pmd)		pte_young(pmd_pte(pmd))
 #define pmd_wrprotect(pmd)	pte_pmd(pte_wrprotect(pmd_pte(pmd)))
@@ -354,7 +356,7 @@ void pmdp_splitting_flush(struct vm_area
 #define pmd_mkwrite(pmd)	pte_pmd(pte_mkwrite(pmd_pte(pmd)))
 #define pmd_mkdirty(pmd)	pte_pmd(pte_mkdirty(pmd_pte(pmd)))
 #define pmd_mkyoung(pmd)	pte_pmd(pte_mkyoung(pmd_pte(pmd)))
-#define pmd_mknotpresent(pmd)	(__pmd(pmd_val(pmd) & ~PMD_TYPE_MASK))
+#define pmd_mknotpresent(pmd)	(__pmd(pmd_val(pmd) & ~PMD_SECT_VALID))
 
 #define __HAVE_ARCH_PMD_WRITE
 #define pmd_write(pmd)		pte_write(pmd_pte(pmd))
@@ -393,7 +395,6 @@ extern pgprot_t phys_mem_access_prot(str
 				     unsigned long size, pgprot_t vma_prot);
 
 #define pmd_none(pmd)		(!pmd_val(pmd))
-#define pmd_present(pmd)	(pmd_val(pmd))
 
 #define pmd_bad(pmd)		(!(pmd_val(pmd) & 2))
 
@@ -537,6 +538,21 @@ static inline pmd_t pmd_modify(pmd_t pmd
 }
 
 #ifdef CONFIG_ARM64_HW_AFDBM
+#define __HAVE_ARCH_PTEP_SET_ACCESS_FLAGS
+extern int ptep_set_access_flags(struct vm_area_struct *vma,
+				 unsigned long address, pte_t *ptep,
+				 pte_t entry, int dirty);
+
+#ifdef CONFIG_TRANSPARENT_HUGEPAGE
+#define __HAVE_ARCH_PMDP_SET_ACCESS_FLAGS
+static inline int pmdp_set_access_flags(struct vm_area_struct *vma,
+					unsigned long address, pmd_t *pmdp,
+					pmd_t entry, int dirty)
+{
+	return ptep_set_access_flags(vma, address, (pte_t *)pmdp, pmd_pte(entry), dirty);
+}
+#endif
+
 /*
  * Atomic pte/pmd modifications.
  */
@@ -589,9 +605,9 @@ static inline pte_t ptep_get_and_clear(s
 }
 
 #ifdef CONFIG_TRANSPARENT_HUGEPAGE
-#define __HAVE_ARCH_PMDP_GET_AND_CLEAR
-static inline pmd_t pmdp_get_and_clear(struct mm_struct *mm,
-				       unsigned long address, pmd_t *pmdp)
+#define __HAVE_ARCH_PMDP_HUGE_GET_AND_CLEAR
+static inline pmd_t pmdp_huge_get_and_clear(struct mm_struct *mm,
+					    unsigned long address, pmd_t *pmdp)
 {
 	return pte_pmd(ptep_get_and_clear(mm, address, (pte_t *)pmdp));
 }
@@ -639,6 +655,7 @@ extern pgd_t idmap_pg_dir[PTRS_PER_PGD];
  *	bits 0-1:	present (must be zero)
  *	bits 2-7:	swap type
  *	bits 8-57:	swap offset
+ *	bit  58:	PTE_PROT_NONE (must be zero)
  */
 #define __SWP_TYPE_SHIFT	2
 #define __SWP_TYPE_BITS		6
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/include/asm/pgtable-hwdef.h linux-libre-4.4.107-gnu/arch/arm64/include/asm/pgtable-hwdef.h
--- linux-libre-4.4-gnu/arch/arm64/include/asm/pgtable-hwdef.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm64/include/asm/pgtable-hwdef.h	2017-12-20 04:05:01.000000000 -0500
@@ -117,7 +117,6 @@
  * Section
  */
 #define PMD_SECT_VALID		(_AT(pmdval_t, 1) << 0)
-#define PMD_SECT_PROT_NONE	(_AT(pmdval_t, 1) << 58)
 #define PMD_SECT_USER		(_AT(pmdval_t, 1) << 6)		/* AP[1] */
 #define PMD_SECT_RDONLY		(_AT(pmdval_t, 1) << 7)		/* AP[2] */
 #define PMD_SECT_S		(_AT(pmdval_t, 3) << 8)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/include/asm/processor.h linux-libre-4.4.107-gnu/arch/arm64/include/asm/processor.h
--- linux-libre-4.4-gnu/arch/arm64/include/asm/processor.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm64/include/asm/processor.h	2017-12-20 04:05:01.000000000 -0500
@@ -186,6 +186,6 @@ static inline void spin_lock_prefetch(co
 
 #endif
 
-void cpu_enable_pan(void *__unused);
+int cpu_enable_pan(void *__unused);
 
 #endif /* __ASM_PROCESSOR_H */
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/include/asm/ptrace.h linux-libre-4.4.107-gnu/arch/arm64/include/asm/ptrace.h
--- linux-libre-4.4-gnu/arch/arm64/include/asm/ptrace.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm64/include/asm/ptrace.h	2017-12-20 04:05:01.000000000 -0500
@@ -58,6 +58,7 @@
 #define COMPAT_PSR_Z_BIT	0x40000000
 #define COMPAT_PSR_N_BIT	0x80000000
 #define COMPAT_PSR_IT_MASK	0x0600fc00	/* If-Then execution state mask */
+#define COMPAT_PSR_GE_MASK	0x000f0000
 
 #ifdef CONFIG_CPU_BIG_ENDIAN
 #define COMPAT_PSR_ENDSTATE	COMPAT_PSR_E_BIT
@@ -116,6 +117,8 @@ struct pt_regs {
 	};
 	u64 orig_x0;
 	u64 syscallno;
+	u64 orig_addr_limit;
+	u64 unused;	// maintain 16 byte alignment
 };
 
 #define arch_has_single_step()	(1)
@@ -151,35 +154,9 @@ static inline unsigned long regs_return_
 	return regs->regs[0];
 }
 
-/*
- * Are the current registers suitable for user mode? (used to maintain
- * security in signal handlers)
- */
-static inline int valid_user_regs(struct user_pt_regs *regs)
-{
-	if (user_mode(regs) && (regs->pstate & PSR_I_BIT) == 0) {
-		regs->pstate &= ~(PSR_F_BIT | PSR_A_BIT);
-
-		/* The T bit is reserved for AArch64 */
-		if (!(regs->pstate & PSR_MODE32_BIT))
-			regs->pstate &= ~COMPAT_PSR_T_BIT;
-
-		return 1;
-	}
-
-	/*
-	 * Force PSR to something logical...
-	 */
-	regs->pstate &= PSR_f | PSR_s | (PSR_x & ~PSR_A_BIT) | \
-			COMPAT_PSR_T_BIT | PSR_MODE32_BIT;
-
-	if (!(regs->pstate & PSR_MODE32_BIT)) {
-		regs->pstate &= ~COMPAT_PSR_T_BIT;
-		regs->pstate |= PSR_MODE_EL0t;
-	}
-
-	return 0;
-}
+/* We must avoid circular header include via sched.h */
+struct task_struct;
+int valid_user_regs(struct user_pt_regs *regs, struct task_struct *task);
 
 #define instruction_pointer(regs)	((unsigned long)(regs)->pc)
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/include/asm/spinlock.h linux-libre-4.4.107-gnu/arch/arm64/include/asm/spinlock.h
--- linux-libre-4.4-gnu/arch/arm64/include/asm/spinlock.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm64/include/asm/spinlock.h	2017-12-20 04:05:01.000000000 -0500
@@ -312,4 +312,14 @@ static inline int arch_read_trylock(arch
 #define arch_read_relax(lock)	cpu_relax()
 #define arch_write_relax(lock)	cpu_relax()
 
+/*
+ * Accesses appearing in program order before a spin_lock() operation
+ * can be reordered with accesses inside the critical section, by virtue
+ * of arch_spin_lock being constructed using acquire semantics.
+ *
+ * In cases where this is problematic (e.g. try_to_wake_up), an
+ * smp_mb__before_spinlock() can restore the required ordering.
+ */
+#define smp_mb__before_spinlock()	smp_mb()
+
 #endif /* __ASM_SPINLOCK_H */
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/include/asm/uaccess.h linux-libre-4.4.107-gnu/arch/arm64/include/asm/uaccess.h
--- linux-libre-4.4-gnu/arch/arm64/include/asm/uaccess.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm64/include/asm/uaccess.h	2017-12-20 04:05:01.000000000 -0500
@@ -21,6 +21,7 @@
 /*
  * User space memory access functions
  */
+#include <linux/bitops.h>
 #include <linux/string.h>
 #include <linux/thread_info.h>
 
@@ -92,16 +93,24 @@ static inline void set_fs(mm_segment_t f
  */
 #define __range_ok(addr, size)						\
 ({									\
+	unsigned long __addr = (unsigned long __force)(addr);		\
 	unsigned long flag, roksum;					\
 	__chk_user_ptr(addr);						\
 	asm("adds %1, %1, %3; ccmp %1, %4, #2, cc; cset %0, ls"		\
 		: "=&r" (flag), "=&r" (roksum)				\
-		: "1" (addr), "Ir" (size),				\
+		: "1" (__addr), "Ir" (size),				\
 		  "r" (current_thread_info()->addr_limit)		\
 		: "cc");						\
 	flag;								\
 })
 
+/*
+ * When dealing with data aborts, watchpoints, or instruction traps we may end
+ * up with a tagged userland pointer. Clear the tag to get a sane pointer to
+ * pass on to access_ok(), for instance.
+ */
+#define untagged_addr(addr)		sign_extend64(addr, 55)
+
 #define access_ok(type, addr, size)	__range_ok(addr, size)
 #define user_addr_max			get_fs
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/include/uapi/asm/auxvec.h linux-libre-4.4.107-gnu/arch/arm64/include/uapi/asm/auxvec.h
--- linux-libre-4.4-gnu/arch/arm64/include/uapi/asm/auxvec.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm64/include/uapi/asm/auxvec.h	2017-12-20 04:05:01.000000000 -0500
@@ -19,4 +19,6 @@
 /* vDSO location */
 #define AT_SYSINFO_EHDR	33
 
+#define AT_VECTOR_SIZE_ARCH 1 /* entries in ARCH_DLINFO */
+
 #endif
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/include/uapi/asm/ptrace.h linux-libre-4.4.107-gnu/arch/arm64/include/uapi/asm/ptrace.h
--- linux-libre-4.4-gnu/arch/arm64/include/uapi/asm/ptrace.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm64/include/uapi/asm/ptrace.h	2017-12-20 04:05:01.000000000 -0500
@@ -76,6 +76,7 @@ struct user_fpsimd_state {
 	__uint128_t	vregs[32];
 	__u32		fpsr;
 	__u32		fpcr;
+	__u32		__reserved[2];
 };
 
 struct user_hwdebug_state {
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/Kconfig linux-libre-4.4.107-gnu/arch/arm64/Kconfig
--- linux-libre-4.4-gnu/arch/arm64/Kconfig	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm64/Kconfig	2017-12-20 04:05:01.000000000 -0500
@@ -391,6 +391,15 @@ config CAVIUM_ERRATUM_22375
 
 	  If unsure, say Y.
 
+config CAVIUM_ERRATUM_23144
+	bool "Cavium erratum 23144: ITS SYNC hang on dual socket system"
+	depends on NUMA
+	default y
+	help
+	  ITS SYNC command hang for cross node io and collections/cpu mapping.
+
+	  If unsure, say Y.
+
 config CAVIUM_ERRATUM_23154
 	bool "Cavium erratum 23154: Access to ICC_IAR1_EL1 is not sync'ed"
 	default y
@@ -401,6 +410,17 @@ config CAVIUM_ERRATUM_23154
 
 	  If unsure, say Y.
 
+config CAVIUM_ERRATUM_27456
+	bool "Cavium erratum 27456: Broadcast TLBI instructions may cause icache corruption"
+	default y
+	help
+	  On ThunderX T88 pass 1.x through 2.1 parts, broadcast TLBI
+	  instructions may cause the icache to become corrupted if it
+	  contains data for a non-current ASID.  The fix is to
+	  invalidate the icache when changing the mm context.
+
+	  If unsure, say Y.
+
 endmenu
 
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/kernel/armv8_deprecated.c linux-libre-4.4.107-gnu/arch/arm64/kernel/armv8_deprecated.c
--- linux-libre-4.4-gnu/arch/arm64/kernel/armv8_deprecated.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm64/kernel/armv8_deprecated.c	2017-12-20 04:05:01.000000000 -0500
@@ -305,7 +305,8 @@ static void register_insn_emulation_sysc
 	ALTERNATIVE("nop", SET_PSTATE_PAN(1), ARM64_HAS_PAN,	\
 		CONFIG_ARM64_PAN)				\
 	: "=&r" (res), "+r" (data), "=&r" (temp)		\
-	: "r" (addr), "i" (-EAGAIN), "i" (-EFAULT)		\
+	: "r" ((unsigned long)addr), "i" (-EAGAIN),		\
+	  "i" (-EFAULT)						\
 	: "memory")
 
 #define __user_swp_asm(data, addr, res, temp) \
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/kernel/asm-offsets.c linux-libre-4.4.107-gnu/arch/arm64/kernel/asm-offsets.c
--- linux-libre-4.4-gnu/arch/arm64/kernel/asm-offsets.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm64/kernel/asm-offsets.c	2017-12-20 04:05:01.000000000 -0500
@@ -58,6 +58,7 @@ int main(void)
   DEFINE(S_PC,			offsetof(struct pt_regs, pc));
   DEFINE(S_ORIG_X0,		offsetof(struct pt_regs, orig_x0));
   DEFINE(S_SYSCALLNO,		offsetof(struct pt_regs, syscallno));
+  DEFINE(S_ORIG_ADDR_LIMIT,	offsetof(struct pt_regs, orig_addr_limit));
   DEFINE(S_FRAME_SIZE,		sizeof(struct pt_regs));
   BLANK();
   DEFINE(MM_CONTEXT_ID,		offsetof(struct mm_struct, context.id.counter));
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/kernel/cpu_errata.c linux-libre-4.4.107-gnu/arch/arm64/kernel/cpu_errata.c
--- linux-libre-4.4-gnu/arch/arm64/kernel/cpu_errata.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm64/kernel/cpu_errata.c	2017-12-20 04:05:01.000000000 -0500
@@ -100,6 +100,15 @@ const struct arm64_cpu_capabilities arm6
 		MIDR_RANGE(MIDR_THUNDERX, 0x00, 0x01),
 	},
 #endif
+#ifdef CONFIG_CAVIUM_ERRATUM_27456
+	{
+	/* Cavium ThunderX, T88 pass 1.x - 2.1 */
+		.desc = "Cavium erratum 27456",
+		.capability = ARM64_WORKAROUND_CAVIUM_27456,
+		MIDR_RANGE(MIDR_THUNDERX, 0x00,
+			   (1 << MIDR_VARIANT_SHIFT) | 1),
+	},
+#endif
 	{
 	}
 };
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/kernel/cpufeature.c linux-libre-4.4.107-gnu/arch/arm64/kernel/cpufeature.c
--- linux-libre-4.4-gnu/arch/arm64/kernel/cpufeature.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm64/kernel/cpufeature.c	2017-12-20 04:05:01.000000000 -0500
@@ -19,7 +19,9 @@
 #define pr_fmt(fmt) "CPU features: " fmt
 
 #include <linux/bsearch.h>
+#include <linux/cpumask.h>
 #include <linux/sort.h>
+#include <linux/stop_machine.h>
 #include <linux/types.h>
 #include <asm/cpu.h>
 #include <asm/cpufeature.h>
@@ -764,7 +766,13 @@ static void enable_cpu_capabilities(cons
 
 	for (i = 0; caps[i].desc; i++)
 		if (caps[i].enable && cpus_have_cap(caps[i].capability))
-			on_each_cpu(caps[i].enable, NULL, true);
+			/*
+			 * Use stop_machine() as it schedules the work allowing
+			 * us to modify PSTATE, instead of on_each_cpu() which
+			 * uses an IPI, giving us a PSTATE that disappears when
+			 * we return.
+			 */
+			stop_machine(caps[i].enable, NULL, cpu_online_mask);
 }
 
 #ifdef CONFIG_HOTPLUG_CPU
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/kernel/cpuinfo.c linux-libre-4.4.107-gnu/arch/arm64/kernel/cpuinfo.c
--- linux-libre-4.4-gnu/arch/arm64/kernel/cpuinfo.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm64/kernel/cpuinfo.c	2017-12-20 04:05:01.000000000 -0500
@@ -22,6 +22,8 @@
 
 #include <linux/bitops.h>
 #include <linux/bug.h>
+#include <linux/compat.h>
+#include <linux/elf.h>
 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/personality.h>
@@ -85,7 +87,8 @@ static const char *const compat_hwcap_st
 	"idivt",
 	"vfpd32",
 	"lpae",
-	"evtstrm"
+	"evtstrm",
+	NULL
 };
 
 static const char *const compat_hwcap2_str[] = {
@@ -101,6 +104,7 @@ static const char *const compat_hwcap2_s
 static int c_show(struct seq_file *m, void *v)
 {
 	int i, j;
+	bool compat = personality(current->personality) == PER_LINUX32;
 
 	for_each_online_cpu(i) {
 		struct cpuinfo_arm64 *cpuinfo = &per_cpu(cpu_data, i);
@@ -112,6 +116,9 @@ static int c_show(struct seq_file *m, vo
 		 * "processor".  Give glibc what it expects.
 		 */
 		seq_printf(m, "processor\t: %d\n", i);
+		if (compat)
+			seq_printf(m, "model name\t: ARMv8 Processor rev %d (%s)\n",
+				   MIDR_REVISION(midr), COMPAT_ELF_PLATFORM);
 
 		seq_printf(m, "BogoMIPS\t: %lu.%02lu\n",
 			   loops_per_jiffy / (500000UL/HZ),
@@ -124,7 +131,7 @@ static int c_show(struct seq_file *m, vo
 		 * software which does already (at least for 32-bit).
 		 */
 		seq_puts(m, "Features\t:");
-		if (personality(current->personality) == PER_LINUX32) {
+		if (compat) {
 #ifdef CONFIG_COMPAT
 			for (j = 0; compat_hwcap_str[j]; j++)
 				if (compat_elf_hwcap & (1 << j))
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/kernel/debug-monitors.c linux-libre-4.4.107-gnu/arch/arm64/kernel/debug-monitors.c
--- linux-libre-4.4-gnu/arch/arm64/kernel/debug-monitors.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm64/kernel/debug-monitors.c	2017-12-20 04:05:01.000000000 -0500
@@ -152,7 +152,6 @@ static int debug_monitors_init(void)
 	/* Clear the OS lock. */
 	on_each_cpu(clear_os_lock, NULL, 1);
 	isb();
-	local_dbg_enable();
 
 	/* Register hotplug handler. */
 	__register_cpu_notifier(&os_lock_nb);
@@ -186,20 +185,21 @@ static void clear_regs_spsr_ss(struct pt
 
 /* EL1 Single Step Handler hooks */
 static LIST_HEAD(step_hook);
-static DEFINE_RWLOCK(step_hook_lock);
+static DEFINE_SPINLOCK(step_hook_lock);
 
 void register_step_hook(struct step_hook *hook)
 {
-	write_lock(&step_hook_lock);
-	list_add(&hook->node, &step_hook);
-	write_unlock(&step_hook_lock);
+	spin_lock(&step_hook_lock);
+	list_add_rcu(&hook->node, &step_hook);
+	spin_unlock(&step_hook_lock);
 }
 
 void unregister_step_hook(struct step_hook *hook)
 {
-	write_lock(&step_hook_lock);
-	list_del(&hook->node);
-	write_unlock(&step_hook_lock);
+	spin_lock(&step_hook_lock);
+	list_del_rcu(&hook->node);
+	spin_unlock(&step_hook_lock);
+	synchronize_rcu();
 }
 
 /*
@@ -213,15 +213,15 @@ static int call_step_hook(struct pt_regs
 	struct step_hook *hook;
 	int retval = DBG_HOOK_ERROR;
 
-	read_lock(&step_hook_lock);
+	rcu_read_lock();
 
-	list_for_each_entry(hook, &step_hook, node)	{
+	list_for_each_entry_rcu(hook, &step_hook, node)	{
 		retval = hook->fn(regs, esr);
 		if (retval == DBG_HOOK_HANDLED)
 			break;
 	}
 
-	read_unlock(&step_hook_lock);
+	rcu_read_unlock();
 
 	return retval;
 }
@@ -422,8 +422,10 @@ int kernel_active_single_step(void)
 /* ptrace API */
 void user_enable_single_step(struct task_struct *task)
 {
-	set_ti_thread_flag(task_thread_info(task), TIF_SINGLESTEP);
-	set_regs_spsr_ss(task_pt_regs(task));
+	struct thread_info *ti = task_thread_info(task);
+
+	if (!test_and_set_ti_thread_flag(ti, TIF_SINGLESTEP))
+		set_regs_spsr_ss(task_pt_regs(task));
 }
 
 void user_disable_single_step(struct task_struct *task)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/kernel/entry.S linux-libre-4.4.107-gnu/arch/arm64/kernel/entry.S
--- linux-libre-4.4-gnu/arch/arm64/kernel/entry.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm64/kernel/entry.S	2017-12-20 04:05:01.000000000 -0500
@@ -27,7 +27,9 @@
 #include <asm/cpufeature.h>
 #include <asm/errno.h>
 #include <asm/esr.h>
+#include <asm/memory.h>
 #include <asm/thread_info.h>
+#include <asm/asm-uaccess.h>
 #include <asm/unistd.h>
 
 /*
@@ -93,7 +95,13 @@
 	disable_step_tsk x19, x20		// exceptions when scheduling.
 	.else
 	add	x21, sp, #S_FRAME_SIZE
-	.endif
+	get_thread_info tsk
+	/* Save the task's original addr_limit and set USER_DS (TASK_SIZE_64) */
+	ldr	x20, [tsk, #TI_ADDR_LIMIT]
+	str	x20, [sp, #S_ORIG_ADDR_LIMIT]
+	mov	x20, #TASK_SIZE_64
+	str	x20, [tsk, #TI_ADDR_LIMIT]
+	.endif /* \el == 0 */
 	mrs	x22, elr_el1
 	mrs	x23, spsr_el1
 	stp	lr, x21, [sp, #S_LR]
@@ -117,6 +125,12 @@
 	.endm
 
 	.macro	kernel_exit, el
+	.if	\el != 0
+	/* Restore the task's original addr_limit. */
+	ldr	x20, [sp, #S_ORIG_ADDR_LIMIT]
+	str	x20, [tsk, #TI_ADDR_LIMIT]
+	.endif
+
 	ldp	x21, x22, [sp, #S_PC]		// load ELR, SPSR
 	.if	\el == 0
 	ct_user_enter
@@ -303,12 +317,13 @@ el1_da:
 	/*
 	 * Data abort handling
 	 */
-	mrs	x0, far_el1
+	mrs	x3, far_el1
 	enable_dbg
 	// re-enable interrupts if they were enabled in the aborted context
 	tbnz	x23, #7, 1f			// PSR_I_BIT
 	enable_irq
 1:
+	clear_address_tag x0, x3
 	mov	x2, sp				// struct pt_regs
 	bl	do_mem_abort
 
@@ -470,7 +485,7 @@ el0_da:
 	// enable interrupts before calling the main handler
 	enable_dbg_and_irq
 	ct_user_exit
-	bic	x0, x26, #(0xff << 56)
+	clear_address_tag x0, x26
 	mov	x1, x25
 	mov	x2, sp
 	bl	do_mem_abort
@@ -549,7 +564,7 @@ el0_inv:
 	mov	x0, sp
 	mov	x1, #BAD_SYNC
 	mov	x2, x25
-	bl	bad_mode
+	bl	bad_el0_sync
 	b	ret_to_user
 ENDPROC(el0_sync)
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/kernel/fpsimd.c linux-libre-4.4.107-gnu/arch/arm64/kernel/fpsimd.c
--- linux-libre-4.4-gnu/arch/arm64/kernel/fpsimd.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm64/kernel/fpsimd.c	2017-12-20 04:05:01.000000000 -0500
@@ -157,9 +157,11 @@ void fpsimd_thread_switch(struct task_st
 
 void fpsimd_flush_thread(void)
 {
+	preempt_disable();
 	memset(&current->thread.fpsimd_state, 0, sizeof(struct fpsimd_state));
 	fpsimd_flush_task_state(current);
 	set_thread_flag(TIF_FOREIGN_FPSTATE);
+	preempt_enable();
 }
 
 /*
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/kernel/head.S linux-libre-4.4.107-gnu/arch/arm64/kernel/head.S
--- linux-libre-4.4-gnu/arch/arm64/kernel/head.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm64/kernel/head.S	2017-12-20 04:05:01.000000000 -0500
@@ -446,6 +446,7 @@ ENDPROC(__mmap_switched)
  * booted in EL1 or EL2 respectively.
  */
 ENTRY(el2_setup)
+	msr	SPsel, #1			// We want to use SP_EL{1,2}
 	mrs	x0, CurrentEL
 	cmp	x0, #CurrentEL_EL2
 	b.ne	1f
@@ -512,9 +513,15 @@ CPU_LE(	movk	x0, #0x30d0, lsl #16	)	// C
 #endif
 
 	/* EL2 debug */
+	mrs	x0, id_aa64dfr0_el1		// Check ID_AA64DFR0_EL1 PMUVer
+	sbfx	x0, x0, #8, #4
+	cmp	x0, #1
+	b.lt	4f				// Skip if no PMU present
 	mrs	x0, pmcr_el0			// Disable debug access traps
 	ubfx	x0, x0, #11, #5			// to EL2 and allow access to
-	msr	mdcr_el2, x0			// all PMU counters from EL1
+4:
+	csel	x0, xzr, x0, lt			// all PMU counters from EL1
+	msr	mdcr_el2, x0			// (if they exist)
 
 	/* Stage-2 translation */
 	msr	vttbr_el2, xzr
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/kernel/hw_breakpoint.c linux-libre-4.4.107-gnu/arch/arm64/kernel/hw_breakpoint.c
--- linux-libre-4.4-gnu/arch/arm64/kernel/hw_breakpoint.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm64/kernel/hw_breakpoint.c	2017-12-20 04:05:01.000000000 -0500
@@ -35,6 +35,7 @@
 #include <asm/traps.h>
 #include <asm/cputype.h>
 #include <asm/system_misc.h>
+#include <asm/uaccess.h>
 
 /* Breakpoint currently in use for each BRP. */
 static DEFINE_PER_CPU(struct perf_event *, bp_on_reg[ARM_MAX_BRP]);
@@ -690,7 +691,7 @@ static int watchpoint_handler(unsigned l
 
 		/* Check if the watchpoint value matches. */
 		val = read_wb_reg(AARCH64_DBG_REG_WVR, i);
-		if (val != (addr & ~alignment_mask))
+		if (val != (untagged_addr(addr) & ~alignment_mask))
 			goto unlock;
 
 		/* Possible match, check the byte address select to confirm. */
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/kernel/perf_event.c linux-libre-4.4.107-gnu/arch/arm64/kernel/perf_event.c
--- linux-libre-4.4-gnu/arch/arm64/kernel/perf_event.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm64/kernel/perf_event.c	2017-12-20 04:05:01.000000000 -0500
@@ -574,9 +574,6 @@ static void armv8pmu_reset(void *info)
 
 	/* Initialize & Reset PMNC: C and P bits. */
 	armv8pmu_pmcr_write(ARMV8_PMCR_P | ARMV8_PMCR_C);
-
-	/* Disable access from userspace. */
-	asm volatile("msr pmuserenr_el0, %0" :: "r" (0));
 }
 
 static int armv8_pmuv3_map_event(struct perf_event *event)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/kernel/process.c linux-libre-4.4.107-gnu/arch/arm64/kernel/process.c
--- linux-libre-4.4-gnu/arch/arm64/kernel/process.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm64/kernel/process.c	2017-12-20 04:05:01.000000000 -0500
@@ -251,6 +251,15 @@ int copy_thread(unsigned long clone_flag
 
 	memset(&p->thread.cpu_context, 0, sizeof(struct cpu_context));
 
+	/*
+	 * In case p was allocated the same task_struct pointer as some
+	 * other recently-exited task, make sure p is disassociated from
+	 * any cpu that may have run that now-exited task recently.
+	 * Otherwise we could erroneously skip reloading the FPSIMD
+	 * registers for p.
+	 */
+	fpsimd_flush_task_state(p);
+
 	if (likely(!(p->flags & PF_KTHREAD))) {
 		*childregs = *current_pt_regs();
 		childregs->regs[0] = 0;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/kernel/ptrace.c linux-libre-4.4.107-gnu/arch/arm64/kernel/ptrace.c
--- linux-libre-4.4-gnu/arch/arm64/kernel/ptrace.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm64/kernel/ptrace.c	2017-12-20 04:05:01.000000000 -0500
@@ -39,6 +39,7 @@
 #include <linux/elf.h>
 
 #include <asm/compat.h>
+#include <asm/cpufeature.h>
 #include <asm/debug-monitors.h>
 #include <asm/pgtable.h>
 #include <asm/syscall.h>
@@ -58,6 +59,12 @@
  */
 void ptrace_disable(struct task_struct *child)
 {
+	/*
+	 * This would be better off in core code, but PTRACE_DETACH has
+	 * grown its fair share of arch-specific worts and changing it
+	 * is likely to cause regressions on obscure architectures.
+	 */
+	user_disable_single_step(child);
 }
 
 #ifdef CONFIG_HAVE_HW_BREAKPOINT
@@ -443,6 +450,8 @@ static int hw_break_set(struct task_stru
 	/* (address, ctrl) registers */
 	limit = regset->n * regset->size;
 	while (count && offset < limit) {
+		if (count < PTRACE_HBP_ADDR_SZ)
+			return -EINVAL;
 		ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, &addr,
 					 offset, offset + PTRACE_HBP_ADDR_SZ);
 		if (ret)
@@ -452,6 +461,8 @@ static int hw_break_set(struct task_stru
 			return ret;
 		offset += PTRACE_HBP_ADDR_SZ;
 
+		if (!count)
+			break;
 		ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, &ctrl,
 					 offset, offset + PTRACE_HBP_CTRL_SZ);
 		if (ret)
@@ -488,13 +499,13 @@ static int gpr_set(struct task_struct *t
 		   const void *kbuf, const void __user *ubuf)
 {
 	int ret;
-	struct user_pt_regs newregs;
+	struct user_pt_regs newregs = task_pt_regs(target)->user_regs;
 
 	ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, &newregs, 0, -1);
 	if (ret)
 		return ret;
 
-	if (!valid_user_regs(&newregs))
+	if (!valid_user_regs(&newregs, target))
 		return -EINVAL;
 
 	task_pt_regs(target)->user_regs = newregs;
@@ -518,7 +529,8 @@ static int fpr_set(struct task_struct *t
 		   const void *kbuf, const void __user *ubuf)
 {
 	int ret;
-	struct user_fpsimd_state newstate;
+	struct user_fpsimd_state newstate =
+		target->thread.fpsimd_state.user_fpsimd;
 
 	ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, &newstate, 0, -1);
 	if (ret)
@@ -542,7 +554,7 @@ static int tls_set(struct task_struct *t
 		   const void *kbuf, const void __user *ubuf)
 {
 	int ret;
-	unsigned long tls;
+	unsigned long tls = target->thread.tp_value;
 
 	ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, &tls, 0, -1);
 	if (ret)
@@ -568,7 +580,8 @@ static int system_call_set(struct task_s
 			   unsigned int pos, unsigned int count,
 			   const void *kbuf, const void __user *ubuf)
 {
-	int syscallno, ret;
+	int syscallno = task_pt_regs(target)->syscallno;
+	int ret;
 
 	ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, &syscallno, 0, -1);
 	if (ret)
@@ -764,7 +777,7 @@ static int compat_gpr_set(struct task_st
 
 	}
 
-	if (valid_user_regs(&newregs.user_regs))
+	if (valid_user_regs(&newregs.user_regs, target))
 		*task_pt_regs(target) = newregs;
 	else
 		ret = -EINVAL;
@@ -840,7 +853,7 @@ static int compat_tls_set(struct task_st
 			  const void __user *ubuf)
 {
 	int ret;
-	compat_ulong_t tls;
+	compat_ulong_t tls = target->thread.tp_value;
 
 	ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, &tls, 0, -1);
 	if (ret)
@@ -1266,3 +1279,79 @@ asmlinkage void syscall_trace_exit(struc
 	if (test_thread_flag(TIF_SYSCALL_TRACE))
 		tracehook_report_syscall(regs, PTRACE_SYSCALL_EXIT);
 }
+
+/*
+ * Bits which are always architecturally RES0 per ARM DDI 0487A.h
+ * Userspace cannot use these until they have an architectural meaning.
+ * We also reserve IL for the kernel; SS is handled dynamically.
+ */
+#define SPSR_EL1_AARCH64_RES0_BITS \
+	(GENMASK_ULL(63,32) | GENMASK_ULL(27, 22) | GENMASK_ULL(20, 10) | \
+	 GENMASK_ULL(5, 5))
+#define SPSR_EL1_AARCH32_RES0_BITS \
+	(GENMASK_ULL(63,32) | GENMASK_ULL(24, 22) | GENMASK_ULL(20,20))
+
+static int valid_compat_regs(struct user_pt_regs *regs)
+{
+	regs->pstate &= ~SPSR_EL1_AARCH32_RES0_BITS;
+
+	if (!system_supports_mixed_endian_el0()) {
+		if (IS_ENABLED(CONFIG_CPU_BIG_ENDIAN))
+			regs->pstate |= COMPAT_PSR_E_BIT;
+		else
+			regs->pstate &= ~COMPAT_PSR_E_BIT;
+	}
+
+	if (user_mode(regs) && (regs->pstate & PSR_MODE32_BIT) &&
+	    (regs->pstate & COMPAT_PSR_A_BIT) == 0 &&
+	    (regs->pstate & COMPAT_PSR_I_BIT) == 0 &&
+	    (regs->pstate & COMPAT_PSR_F_BIT) == 0) {
+		return 1;
+	}
+
+	/*
+	 * Force PSR to a valid 32-bit EL0t, preserving the same bits as
+	 * arch/arm.
+	 */
+	regs->pstate &= COMPAT_PSR_N_BIT | COMPAT_PSR_Z_BIT |
+			COMPAT_PSR_C_BIT | COMPAT_PSR_V_BIT |
+			COMPAT_PSR_Q_BIT | COMPAT_PSR_IT_MASK |
+			COMPAT_PSR_GE_MASK | COMPAT_PSR_E_BIT |
+			COMPAT_PSR_T_BIT;
+	regs->pstate |= PSR_MODE32_BIT;
+
+	return 0;
+}
+
+static int valid_native_regs(struct user_pt_regs *regs)
+{
+	regs->pstate &= ~SPSR_EL1_AARCH64_RES0_BITS;
+
+	if (user_mode(regs) && !(regs->pstate & PSR_MODE32_BIT) &&
+	    (regs->pstate & PSR_D_BIT) == 0 &&
+	    (regs->pstate & PSR_A_BIT) == 0 &&
+	    (regs->pstate & PSR_I_BIT) == 0 &&
+	    (regs->pstate & PSR_F_BIT) == 0) {
+		return 1;
+	}
+
+	/* Force PSR to a valid 64-bit EL0t */
+	regs->pstate &= PSR_N_BIT | PSR_Z_BIT | PSR_C_BIT | PSR_V_BIT;
+
+	return 0;
+}
+
+/*
+ * Are the current registers suitable for user mode? (used to maintain
+ * security in signal handlers)
+ */
+int valid_user_regs(struct user_pt_regs *regs, struct task_struct *task)
+{
+	if (!test_tsk_thread_flag(task, TIF_SINGLESTEP))
+		regs->pstate &= ~DBG_SPSR_SS;
+
+	if (is_compat_thread(task_thread_info(task)))
+		return valid_compat_regs(regs);
+	else
+		return valid_native_regs(regs);
+}
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/kernel/signal32.c linux-libre-4.4.107-gnu/arch/arm64/kernel/signal32.c
--- linux-libre-4.4-gnu/arch/arm64/kernel/signal32.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm64/kernel/signal32.c	2017-12-20 04:05:01.000000000 -0500
@@ -356,7 +356,7 @@ static int compat_restore_sigframe(struc
 	 */
 	regs->syscallno = ~0UL;
 
-	err |= !valid_user_regs(&regs->user_regs);
+	err |= !valid_user_regs(&regs->user_regs, current);
 
 	aux = (struct compat_aux_sigframe __user *) sf->uc.uc_regspace;
 	if (err == 0)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/kernel/signal.c linux-libre-4.4.107-gnu/arch/arm64/kernel/signal.c
--- linux-libre-4.4-gnu/arch/arm64/kernel/signal.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm64/kernel/signal.c	2017-12-20 04:05:01.000000000 -0500
@@ -115,7 +115,7 @@ static int restore_sigframe(struct pt_re
 	 */
 	regs->syscallno = ~0UL;
 
-	err |= !valid_user_regs(&regs->user_regs);
+	err |= !valid_user_regs(&regs->user_regs, current);
 
 	if (err == 0) {
 		struct fpsimd_context *fpsimd_ctx =
@@ -307,7 +307,7 @@ static void handle_signal(struct ksignal
 	/*
 	 * Check that the resulting registers are actually sane.
 	 */
-	ret |= !valid_user_regs(&regs->user_regs);
+	ret |= !valid_user_regs(&regs->user_regs, current);
 
 	/*
 	 * Fast forward the stepping logic so we step into the signal
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/kernel/smp.c linux-libre-4.4.107-gnu/arch/arm64/kernel/smp.c
--- linux-libre-4.4-gnu/arch/arm64/kernel/smp.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm64/kernel/smp.c	2017-12-20 04:05:01.000000000 -0500
@@ -188,7 +188,6 @@ asmlinkage void secondary_start_kernel(v
 	set_cpu_online(cpu, true);
 	complete(&cpu_running);
 
-	local_dbg_enable();
 	local_irq_enable();
 	local_async_enable();
 
@@ -334,8 +333,8 @@ void __init smp_cpus_done(unsigned int m
 
 void __init smp_prepare_boot_cpu(void)
 {
-	cpuinfo_store_boot_cpu();
 	set_my_cpu_offset(per_cpu_offset(smp_processor_id()));
+	cpuinfo_store_boot_cpu();
 }
 
 static u64 __init of_get_cpu_mpidr(struct device_node *dn)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/kernel/suspend.c linux-libre-4.4.107-gnu/arch/arm64/kernel/suspend.c
--- linux-libre-4.4-gnu/arch/arm64/kernel/suspend.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm64/kernel/suspend.c	2017-12-20 04:05:01.000000000 -0500
@@ -1,7 +1,9 @@
 #include <linux/ftrace.h>
 #include <linux/percpu.h>
 #include <linux/slab.h>
+#include <asm/alternative.h>
 #include <asm/cacheflush.h>
+#include <asm/cpufeature.h>
 #include <asm/debug-monitors.h>
 #include <asm/pgtable.h>
 #include <asm/memory.h>
@@ -111,6 +113,13 @@ int cpu_suspend(unsigned long arg, int (
 		set_my_cpu_offset(per_cpu_offset(smp_processor_id()));
 
 		/*
+		 * PSTATE was not saved over suspend/resume, re-enable any
+		 * detected features that might not have been set correctly.
+		 */
+		asm(ALTERNATIVE("nop", SET_PSTATE_PAN(1), ARM64_HAS_PAN,
+				CONFIG_ARM64_PAN));
+
+		/*
 		 * Restore HW breakpoint registers to sane values
 		 * before debug exceptions are possibly reenabled
 		 * through local_dbg_restore.
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/kernel/traps.c linux-libre-4.4.107-gnu/arch/arm64/kernel/traps.c
--- linux-libre-4.4-gnu/arch/arm64/kernel/traps.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm64/kernel/traps.c	2017-12-20 04:05:01.000000000 -0500
@@ -64,8 +64,7 @@ static void dump_mem(const char *lvl, co
 
 	/*
 	 * We need to switch to kernel mode so that we can use __get_user
-	 * to safely read from kernel space.  Note that we now dump the
-	 * code first, just in case the backtrace kills us.
+	 * to safely read from kernel space.
 	 */
 	fs = get_fs();
 	set_fs(KERNEL_DS);
@@ -111,25 +110,16 @@ static void dump_backtrace_entry(unsigne
 	print_ip_sym(where);
 }
 
-static void dump_instr(const char *lvl, struct pt_regs *regs)
+static void __dump_instr(const char *lvl, struct pt_regs *regs)
 {
 	unsigned long addr = instruction_pointer(regs);
-	mm_segment_t fs;
 	char str[sizeof("00000000 ") * 5 + 2 + 1], *p = str;
 	int i;
 
-	/*
-	 * We need to switch to kernel mode so that we can use __get_user
-	 * to safely read from kernel space.  Note that we now dump the
-	 * code first, just in case the backtrace kills us.
-	 */
-	fs = get_fs();
-	set_fs(KERNEL_DS);
-
 	for (i = -4; i < 1; i++) {
 		unsigned int val, bad;
 
-		bad = __get_user(val, &((u32 *)addr)[i]);
+		bad = get_user(val, &((u32 *)addr)[i]);
 
 		if (!bad)
 			p += sprintf(p, i == 0 ? "(%08x) " : "%08x ", val);
@@ -139,8 +129,18 @@ static void dump_instr(const char *lvl,
 		}
 	}
 	printk("%sCode: %s\n", lvl, str);
+}
 
-	set_fs(fs);
+static void dump_instr(const char *lvl, struct pt_regs *regs)
+{
+	if (!user_mode(regs)) {
+		mm_segment_t fs = get_fs();
+		set_fs(KERNEL_DS);
+		__dump_instr(lvl, regs);
+		set_fs(fs);
+	} else {
+		__dump_instr(lvl, regs);
+	}
 }
 
 static void dump_backtrace(struct pt_regs *regs, struct task_struct *tsk)
@@ -434,16 +434,33 @@ const char *esr_get_class_string(u32 esr
 }
 
 /*
- * bad_mode handles the impossible case in the exception vector.
+ * bad_mode handles the impossible case in the exception vector. This is always
+ * fatal.
  */
 asmlinkage void bad_mode(struct pt_regs *regs, int reason, unsigned int esr)
 {
-	siginfo_t info;
-	void __user *pc = (void __user *)instruction_pointer(regs);
 	console_verbose();
 
 	pr_crit("Bad mode in %s handler detected, code 0x%08x -- %s\n",
 		handler[reason], esr, esr_get_class_string(esr));
+
+	die("Oops - bad mode", regs, 0);
+	local_irq_disable();
+	panic("bad mode");
+}
+
+/*
+ * bad_el0_sync handles unexpected, but potentially recoverable synchronous
+ * exceptions taken from EL0. Unlike bad_mode, this returns.
+ */
+asmlinkage void bad_el0_sync(struct pt_regs *regs, int reason, unsigned int esr)
+{
+	siginfo_t info;
+	void __user *pc = (void __user *)instruction_pointer(regs);
+	console_verbose();
+
+	pr_crit("Bad EL0 synchronous exception detected on CPU%d, code 0x%08x -- %s\n",
+		smp_processor_id(), esr, esr_get_class_string(esr));
 	__show_regs(regs);
 
 	info.si_signo = SIGILL;
@@ -451,7 +468,10 @@ asmlinkage void bad_mode(struct pt_regs
 	info.si_code  = ILL_ILLOPC;
 	info.si_addr  = pc;
 
-	arm64_notify_die("Oops - bad mode", regs, &info, 0);
+	current->thread.fault_address = 0;
+	current->thread.fault_code = 0;
+
+	force_sig_info(info.si_signo, &info, current);
 }
 
 void __pte_error(const char *file, int line, unsigned long val)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/kvm/guest.c linux-libre-4.4.107-gnu/arch/arm64/kvm/guest.c
--- linux-libre-4.4-gnu/arch/arm64/kvm/guest.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm64/kvm/guest.c	2017-12-20 04:05:01.000000000 -0500
@@ -186,7 +186,7 @@ static int get_timer_reg(struct kvm_vcpu
 	u64 val;
 
 	val = kvm_arm_timer_get_reg(vcpu, reg->id);
-	return copy_to_user(uaddr, &val, KVM_REG_SIZE(reg->id));
+	return copy_to_user(uaddr, &val, KVM_REG_SIZE(reg->id)) ? -EFAULT : 0;
 }
 
 /**
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/kvm/handle_exit.c linux-libre-4.4.107-gnu/arch/arm64/kvm/handle_exit.c
--- linux-libre-4.4-gnu/arch/arm64/kvm/handle_exit.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm64/kvm/handle_exit.c	2017-12-20 04:05:01.000000000 -0500
@@ -121,7 +121,19 @@ static int kvm_handle_guest_debug(struct
 	return ret;
 }
 
+static int kvm_handle_unknown_ec(struct kvm_vcpu *vcpu, struct kvm_run *run)
+{
+	u32 hsr = kvm_vcpu_get_hsr(vcpu);
+
+	kvm_pr_unimpl("Unknown exception class: hsr: %#08x -- %s\n",
+		      hsr, esr_get_class_string(hsr));
+
+	kvm_inject_undefined(vcpu);
+	return 1;
+}
+
 static exit_handle_fn arm_exit_handlers[] = {
+	[0 ... ESR_ELx_EC_MAX]	= kvm_handle_unknown_ec,
 	[ESR_ELx_EC_WFx]	= kvm_handle_wfx,
 	[ESR_ELx_EC_CP15_32]	= kvm_handle_cp15_32,
 	[ESR_ELx_EC_CP15_64]	= kvm_handle_cp15_64,
@@ -147,13 +159,6 @@ static exit_handle_fn kvm_get_exit_handl
 	u32 hsr = kvm_vcpu_get_hsr(vcpu);
 	u8 hsr_ec = hsr >> ESR_ELx_EC_SHIFT;
 
-	if (hsr_ec >= ARRAY_SIZE(arm_exit_handlers) ||
-	    !arm_exit_handlers[hsr_ec]) {
-		kvm_err("Unknown exception class: hsr: %#08x -- %s\n",
-			hsr, esr_get_class_string(hsr));
-		BUG();
-	}
-
 	return arm_exit_handlers[hsr_ec];
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/kvm/hyp-init.S linux-libre-4.4.107-gnu/arch/arm64/kvm/hyp-init.S
--- linux-libre-4.4-gnu/arch/arm64/kvm/hyp-init.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm64/kvm/hyp-init.S	2017-12-20 04:05:01.000000000 -0500
@@ -64,7 +64,7 @@ __do_hyp_init:
 	mrs	x4, tcr_el1
 	ldr	x5, =TCR_EL2_MASK
 	and	x4, x4, x5
-	ldr	x5, =TCR_EL2_FLAGS
+	mov	x5, #TCR_EL2_RES1
 	orr	x4, x4, x5
 
 #ifndef CONFIG_ARM64_VA_BITS_48
@@ -85,15 +85,18 @@ __do_hyp_init:
 	ldr_l	x5, idmap_t0sz
 	bfi	x4, x5, TCR_T0SZ_OFFSET, TCR_TxSZ_WIDTH
 #endif
-	msr	tcr_el2, x4
-
-	ldr	x4, =VTCR_EL2_FLAGS
 	/*
 	 * Read the PARange bits from ID_AA64MMFR0_EL1 and set the PS bits in
-	 * VTCR_EL2.
+	 * TCR_EL2 and VTCR_EL2.
 	 */
 	mrs	x5, ID_AA64MMFR0_EL1
 	bfi	x4, x5, #16, #3
+
+	msr	tcr_el2, x4
+
+	ldr	x4, =VTCR_EL2_FLAGS
+	bfi	x4, x5, #16, #3
+
 	msr	vtcr_el2, x4
 
 	mrs	x4, mair_el1
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/kvm/inject_fault.c linux-libre-4.4.107-gnu/arch/arm64/kvm/inject_fault.c
--- linux-libre-4.4-gnu/arch/arm64/kvm/inject_fault.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm64/kvm/inject_fault.c	2017-12-20 04:05:01.000000000 -0500
@@ -130,7 +130,7 @@ static void inject_abt64(struct kvm_vcpu
 		esr |= (ESR_ELx_EC_IABT_CUR << ESR_ELx_EC_SHIFT);
 
 	if (!is_iabt)
-		esr |= ESR_ELx_EC_DABT_LOW;
+		esr |= ESR_ELx_EC_DABT_LOW << ESR_ELx_EC_SHIFT;
 
 	vcpu_sys_reg(vcpu, ESR_EL1) = esr | ESR_ELx_FSC_EXTABT;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/kvm/sys_regs.c linux-libre-4.4.107-gnu/arch/arm64/kvm/sys_regs.c
--- linux-libre-4.4-gnu/arch/arm64/kvm/sys_regs.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm64/kvm/sys_regs.c	2017-12-20 04:05:01.000000000 -0500
@@ -1054,8 +1054,8 @@ static int kvm_handle_cp_64(struct kvm_v
 {
 	struct sys_reg_params params;
 	u32 hsr = kvm_vcpu_get_hsr(vcpu);
-	int Rt = (hsr >> 5) & 0xf;
-	int Rt2 = (hsr >> 10) & 0xf;
+	int Rt = (hsr >> 5) & 0x1f;
+	int Rt2 = (hsr >> 10) & 0x1f;
 
 	params.is_aarch32 = true;
 	params.is_32bit = false;
@@ -1106,7 +1106,7 @@ static int kvm_handle_cp_32(struct kvm_v
 {
 	struct sys_reg_params params;
 	u32 hsr = kvm_vcpu_get_hsr(vcpu);
-	int Rt  = (hsr >> 5) & 0xf;
+	int Rt  = (hsr >> 5) & 0x1f;
 
 	params.is_aarch32 = true;
 	params.is_32bit = true;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/Makefile linux-libre-4.4.107-gnu/arch/arm64/Makefile
--- linux-libre-4.4-gnu/arch/arm64/Makefile	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm64/Makefile	2017-12-20 04:05:01.000000000 -0500
@@ -27,6 +27,7 @@ $(warning LSE atomics not supported by b
 endif
 
 KBUILD_CFLAGS	+= -mgeneral-regs-only $(lseinstr)
+KBUILD_CFLAGS	+= $(call cc-option, -mpc-relative-literal-loads)
 KBUILD_AFLAGS	+= $(lseinstr)
 
 ifeq ($(CONFIG_CPU_BIG_ENDIAN), y)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/mm/dma-mapping.c linux-libre-4.4.107-gnu/arch/arm64/mm/dma-mapping.c
--- linux-libre-4.4-gnu/arch/arm64/mm/dma-mapping.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm64/mm/dma-mapping.c	2017-12-20 04:05:01.000000000 -0500
@@ -933,6 +933,10 @@ static int __init __iommu_dma_init(void)
 		ret = register_iommu_dma_ops_notifier(&platform_bus_type);
 	if (!ret)
 		ret = register_iommu_dma_ops_notifier(&amba_bustype);
+
+	/* handle devices queued before this arch_initcall */
+	if (!ret)
+		__iommu_attach_notifier(NULL, BUS_NOTIFY_ADD_DEVICE, NULL);
 	return ret;
 }
 arch_initcall(__iommu_dma_init);
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/mm/fault.c linux-libre-4.4.107-gnu/arch/arm64/mm/fault.c
--- linux-libre-4.4-gnu/arch/arm64/mm/fault.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm64/mm/fault.c	2017-12-20 04:05:01.000000000 -0500
@@ -29,7 +29,9 @@
 #include <linux/sched.h>
 #include <linux/highmem.h>
 #include <linux/perf_event.h>
+#include <linux/preempt.h>
 
+#include <asm/bug.h>
 #include <asm/cpufeature.h>
 #include <asm/exception.h>
 #include <asm/debug-monitors.h>
@@ -64,23 +66,73 @@ void show_pte(struct mm_struct *mm, unsi
 			break;
 
 		pud = pud_offset(pgd, addr);
-		printk(", *pud=%016llx", pud_val(*pud));
+		pr_cont(", *pud=%016llx", pud_val(*pud));
 		if (pud_none(*pud) || pud_bad(*pud))
 			break;
 
 		pmd = pmd_offset(pud, addr);
-		printk(", *pmd=%016llx", pmd_val(*pmd));
+		pr_cont(", *pmd=%016llx", pmd_val(*pmd));
 		if (pmd_none(*pmd) || pmd_bad(*pmd))
 			break;
 
 		pte = pte_offset_map(pmd, addr);
-		printk(", *pte=%016llx", pte_val(*pte));
+		pr_cont(", *pte=%016llx", pte_val(*pte));
 		pte_unmap(pte);
 	} while(0);
 
-	printk("\n");
+	pr_cont("\n");
 }
 
+#ifdef CONFIG_ARM64_HW_AFDBM
+/*
+ * This function sets the access flags (dirty, accessed), as well as write
+ * permission, and only to a more permissive setting.
+ *
+ * It needs to cope with hardware update of the accessed/dirty state by other
+ * agents in the system and can safely skip the __sync_icache_dcache() call as,
+ * like set_pte_at(), the PTE is never changed from no-exec to exec here.
+ *
+ * Returns whether or not the PTE actually changed.
+ */
+int ptep_set_access_flags(struct vm_area_struct *vma,
+			  unsigned long address, pte_t *ptep,
+			  pte_t entry, int dirty)
+{
+	pteval_t old_pteval;
+	unsigned int tmp;
+
+	if (pte_same(*ptep, entry))
+		return 0;
+
+	/* only preserve the access flags and write permission */
+	pte_val(entry) &= PTE_AF | PTE_WRITE | PTE_DIRTY;
+
+	/*
+	 * PTE_RDONLY is cleared by default in the asm below, so set it in
+	 * back if necessary (read-only or clean PTE).
+	 */
+	if (!pte_write(entry) || !pte_sw_dirty(entry))
+		pte_val(entry) |= PTE_RDONLY;
+
+	/*
+	 * Setting the flags must be done atomically to avoid racing with the
+	 * hardware update of the access/dirty state.
+	 */
+	asm volatile("//	ptep_set_access_flags\n"
+	"	prfm	pstl1strm, %2\n"
+	"1:	ldxr	%0, %2\n"
+	"	and	%0, %0, %3		// clear PTE_RDONLY\n"
+	"	orr	%0, %0, %4		// set flags\n"
+	"	stxr	%w1, %0, %2\n"
+	"	cbnz	%w1, 1b\n"
+	: "=&r" (old_pteval), "=&r" (tmp), "+Q" (pte_val(*ptep))
+	: "L" (~PTE_RDONLY), "r" (pte_val(entry)));
+
+	flush_tlb_fix_spurious_fault(vma, address);
+	return 1;
+}
+#endif
+
 /*
  * The kernel tried to access some page that wasn't present.
  */
@@ -261,8 +313,11 @@ retry:
 	 * signal first. We do not need to release the mmap_sem because it
 	 * would already be released in __lock_page_or_retry in mm/filemap.c.
 	 */
-	if ((fault & VM_FAULT_RETRY) && fatal_signal_pending(current))
+	if ((fault & VM_FAULT_RETRY) && fatal_signal_pending(current)) {
+		if (!user_mode(regs))
+			goto no_context;
 		return 0;
+	}
 
 	/*
 	 * Major/minor page fault accounting is only done on the initial
@@ -392,7 +447,7 @@ static struct fault_info {
 	{ do_translation_fault,	SIGSEGV, SEGV_MAPERR,	"level 0 translation fault"	},
 	{ do_translation_fault,	SIGSEGV, SEGV_MAPERR,	"level 1 translation fault"	},
 	{ do_translation_fault,	SIGSEGV, SEGV_MAPERR,	"level 2 translation fault"	},
-	{ do_page_fault,	SIGSEGV, SEGV_MAPERR,	"level 3 translation fault"	},
+	{ do_translation_fault,	SIGSEGV, SEGV_MAPERR,	"level 3 translation fault"	},
 	{ do_bad,		SIGBUS,  0,		"unknown 8"			},
 	{ do_page_fault,	SIGSEGV, SEGV_ACCERR,	"level 1 access flag fault"	},
 	{ do_page_fault,	SIGSEGV, SEGV_ACCERR,	"level 2 access flag fault"	},
@@ -556,8 +611,16 @@ asmlinkage int __exception do_debug_exce
 }
 
 #ifdef CONFIG_ARM64_PAN
-void cpu_enable_pan(void *__unused)
+int cpu_enable_pan(void *__unused)
 {
+	/*
+	 * We modify PSTATE. This won't work from irq context as the PSTATE
+	 * is discarded once we return from the exception.
+	 */
+	WARN_ON_ONCE(in_interrupt());
+
 	config_sctlr_el1(SCTLR_EL1_SPAN, 0);
+	asm(SET_PSTATE_PAN(1));
+	return 0;
 }
 #endif /* CONFIG_ARM64_PAN */
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/mm/init.c linux-libre-4.4.107-gnu/arch/arm64/mm/init.c
--- linux-libre-4.4-gnu/arch/arm64/mm/init.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm64/mm/init.c	2017-12-20 04:05:01.000000000 -0500
@@ -319,8 +319,8 @@ void __init mem_init(void)
 #endif
 		  MLG(VMALLOC_START, VMALLOC_END),
 #ifdef CONFIG_SPARSEMEM_VMEMMAP
-		  MLG((unsigned long)vmemmap,
-		      (unsigned long)vmemmap + VMEMMAP_SIZE),
+		  MLG(VMEMMAP_START,
+		      VMEMMAP_START + VMEMMAP_SIZE),
 		  MLM((unsigned long)virt_to_page(PAGE_OFFSET),
 		      (unsigned long)virt_to_page(high_memory)),
 #endif
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/mm/mmu.c linux-libre-4.4.107-gnu/arch/arm64/mm/mmu.c
--- linux-libre-4.4-gnu/arch/arm64/mm/mmu.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm64/mm/mmu.c	2017-12-20 04:05:01.000000000 -0500
@@ -456,6 +456,9 @@ void __init paging_init(void)
 
 	empty_zero_page = virt_to_page(zero_page);
 
+	/* Ensure the zero page is visible to the page table walker */
+	dsb(ishst);
+
 	/*
 	 * TTBR0 is only used for the identity mapping at this stage. Make it
 	 * point to zero page to avoid speculatively fetching new entries.
@@ -649,9 +652,9 @@ void *__init fixmap_remap_fdt(phys_addr_
 	/*
 	 * Check whether the physical FDT address is set and meets the minimum
 	 * alignment requirement. Since we are relying on MIN_FDT_ALIGN to be
-	 * at least 8 bytes so that we can always access the size field of the
-	 * FDT header after mapping the first chunk, double check here if that
-	 * is indeed the case.
+	 * at least 8 bytes so that we can always access the magic and size
+	 * fields of the FDT header after mapping the first chunk, double check
+	 * here if that is indeed the case.
 	 */
 	BUILD_BUG_ON(MIN_FDT_ALIGN < 8);
 	if (!dt_phys || dt_phys % MIN_FDT_ALIGN)
@@ -679,7 +682,7 @@ void *__init fixmap_remap_fdt(phys_addr_
 	create_mapping(round_down(dt_phys, SWAPPER_BLOCK_SIZE), dt_virt_base,
 		       SWAPPER_BLOCK_SIZE, prot);
 
-	if (fdt_check_header(dt_virt) != 0)
+	if (fdt_magic(dt_virt) != FDT_MAGIC)
 		return NULL;
 
 	size = fdt_totalsize(dt_virt);
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/mm/pageattr.c linux-libre-4.4.107-gnu/arch/arm64/mm/pageattr.c
--- linux-libre-4.4-gnu/arch/arm64/mm/pageattr.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm64/mm/pageattr.c	2017-12-20 04:05:01.000000000 -0500
@@ -57,6 +57,9 @@ static int change_memory_common(unsigned
 	if (end < MODULES_VADDR || end >= MODULES_END)
 		return -EINVAL;
 
+	if (!numpages)
+		return 0;
+
 	data.set_mask = set_mask;
 	data.clear_mask = clear_mask;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/mm/proc-macros.S linux-libre-4.4.107-gnu/arch/arm64/mm/proc-macros.S
--- linux-libre-4.4-gnu/arch/arm64/mm/proc-macros.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm64/mm/proc-macros.S	2017-12-20 04:05:01.000000000 -0500
@@ -62,3 +62,15 @@
 	bfi	\valreg, \tmpreg, #TCR_T0SZ_OFFSET, #TCR_TxSZ_WIDTH
 #endif
 	.endm
+
+/*
+ * reset_pmuserenr_el0 - reset PMUSERENR_EL0 if PMUv3 present
+ */
+	.macro	reset_pmuserenr_el0, tmpreg
+	mrs	\tmpreg, id_aa64dfr0_el1	// Check ID_AA64DFR0_EL1 PMUVer
+	sbfx	\tmpreg, \tmpreg, #8, #4
+	cmp	\tmpreg, #1			// Skip if no PMU present
+	b.lt	9000f
+	msr	pmuserenr_el0, xzr		// Disable PMU access from EL0
+9000:
+	.endm
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/mm/proc.S linux-libre-4.4.107-gnu/arch/arm64/mm/proc.S
--- linux-libre-4.4-gnu/arch/arm64/mm/proc.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm64/mm/proc.S	2017-12-20 04:05:01.000000000 -0500
@@ -25,6 +25,8 @@
 #include <asm/hwcap.h>
 #include <asm/pgtable-hwdef.h>
 #include <asm/pgtable.h>
+#include <asm/cpufeature.h>
+#include <asm/alternative.h>
 
 #include "proc-macros.S"
 
@@ -117,6 +119,7 @@ ENTRY(cpu_do_resume)
 	 */
 	ubfx	x11, x11, #1, #1
 	msr	oslar_el1, x11
+	reset_pmuserenr_el0 x0			// Disable PMU access from EL0
 	mov	x0, x12
 	dsb	nsh		// Make sure local tlb invalidation completed
 	isb
@@ -136,7 +139,17 @@ ENTRY(cpu_do_switch_mm)
 	bfi	x0, x1, #48, #16		// set the ASID
 	msr	ttbr0_el1, x0			// set TTBR0
 	isb
+alternative_if_not ARM64_WORKAROUND_CAVIUM_27456
+	ret
+	nop
+	nop
+	nop
+alternative_else
+	ic	iallu
+	dsb	nsh
+	isb
 	ret
+alternative_endif
 ENDPROC(cpu_do_switch_mm)
 
 	.section ".text.init", #alloc, #execinstr
@@ -155,6 +168,9 @@ ENTRY(__cpu_setup)
 	msr	cpacr_el1, x0			// Enable FP/ASIMD
 	mov	x0, #1 << 12			// Reset mdscr_el1 and disable
 	msr	mdscr_el1, x0			// access to the DCC from EL0
+	isb					// Unmask debug exceptions now,
+	enable_dbg				// since this is per-cpu
+	reset_pmuserenr_el0 x0			// Disable PMU access from EL0
 	/*
 	 * Memory region attributes for LPAE:
 	 *
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/arm64/net/bpf_jit_comp.c linux-libre-4.4.107-gnu/arch/arm64/net/bpf_jit_comp.c
--- linux-libre-4.4-gnu/arch/arm64/net/bpf_jit_comp.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/arm64/net/bpf_jit_comp.c	2017-12-20 04:05:01.000000000 -0500
@@ -728,14 +728,14 @@ static int build_body(struct jit_ctx *ct
 		int ret;
 
 		ret = build_insn(insn, ctx);
-
-		if (ctx->image == NULL)
-			ctx->offset[i] = ctx->idx;
-
 		if (ret > 0) {
 			i++;
+			if (ctx->image == NULL)
+				ctx->offset[i] = ctx->idx;
 			continue;
 		}
+		if (ctx->image == NULL)
+			ctx->offset[i] = ctx->idx;
 		if (ret)
 			return ret;
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/avr32/include/asm/uaccess.h linux-libre-4.4.107-gnu/arch/avr32/include/asm/uaccess.h
--- linux-libre-4.4-gnu/arch/avr32/include/asm/uaccess.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/avr32/include/asm/uaccess.h	2017-12-20 04:05:01.000000000 -0500
@@ -74,7 +74,7 @@ extern __kernel_size_t __copy_user(void
 
 extern __kernel_size_t copy_to_user(void __user *to, const void *from,
 				    __kernel_size_t n);
-extern __kernel_size_t copy_from_user(void *to, const void __user *from,
+extern __kernel_size_t ___copy_from_user(void *to, const void __user *from,
 				      __kernel_size_t n);
 
 static inline __kernel_size_t __copy_to_user(void __user *to, const void *from,
@@ -88,6 +88,15 @@ static inline __kernel_size_t __copy_fro
 {
 	return __copy_user(to, (const void __force *)from, n);
 }
+static inline __kernel_size_t copy_from_user(void *to,
+					       const void __user *from,
+					       __kernel_size_t n)
+{
+	size_t res = ___copy_from_user(to, from, n);
+	if (unlikely(res))
+		memset(to + (n - res), 0, res);
+	return res;
+}
 
 #define __copy_to_user_inatomic __copy_to_user
 #define __copy_from_user_inatomic __copy_from_user
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/avr32/kernel/avr32_ksyms.c linux-libre-4.4.107-gnu/arch/avr32/kernel/avr32_ksyms.c
--- linux-libre-4.4-gnu/arch/avr32/kernel/avr32_ksyms.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/avr32/kernel/avr32_ksyms.c	2017-12-20 04:05:01.000000000 -0500
@@ -36,7 +36,7 @@ EXPORT_SYMBOL(copy_page);
 /*
  * Userspace access stuff.
  */
-EXPORT_SYMBOL(copy_from_user);
+EXPORT_SYMBOL(___copy_from_user);
 EXPORT_SYMBOL(copy_to_user);
 EXPORT_SYMBOL(__copy_user);
 EXPORT_SYMBOL(strncpy_from_user);
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/avr32/lib/copy_user.S linux-libre-4.4.107-gnu/arch/avr32/lib/copy_user.S
--- linux-libre-4.4-gnu/arch/avr32/lib/copy_user.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/avr32/lib/copy_user.S	2017-12-20 04:05:01.000000000 -0500
@@ -23,13 +23,13 @@
 	 */
 	.text
 	.align	1
-	.global	copy_from_user
-	.type	copy_from_user, @function
-copy_from_user:
+	.global	___copy_from_user
+	.type	___copy_from_user, @function
+___copy_from_user:
 	branch_if_kernel r8, __copy_user
 	ret_if_privileged r8, r11, r10, r10
 	rjmp	__copy_user
-	.size	copy_from_user, . - copy_from_user
+	.size	___copy_from_user, . - ___copy_from_user
 
 	.global	copy_to_user
 	.type	copy_to_user, @function
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/avr32/mach-at32ap/pio.c linux-libre-4.4.107-gnu/arch/avr32/mach-at32ap/pio.c
--- linux-libre-4.4-gnu/arch/avr32/mach-at32ap/pio.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/avr32/mach-at32ap/pio.c	2017-12-20 04:05:01.000000000 -0500
@@ -435,7 +435,7 @@ void __init at32_init_pio(struct platfor
 	struct resource *regs;
 	struct pio_device *pio;
 
-	if (pdev->id > MAX_NR_PIO_DEVICES) {
+	if (pdev->id >= MAX_NR_PIO_DEVICES) {
 		dev_err(&pdev->dev, "only %d PIO devices supported\n",
 			MAX_NR_PIO_DEVICES);
 		return;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/blackfin/include/asm/uaccess.h linux-libre-4.4.107-gnu/arch/blackfin/include/asm/uaccess.h
--- linux-libre-4.4-gnu/arch/blackfin/include/asm/uaccess.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/blackfin/include/asm/uaccess.h	2017-12-20 04:05:01.000000000 -0500
@@ -177,11 +177,12 @@ static inline int bad_user_access_length
 static inline unsigned long __must_check
 copy_from_user(void *to, const void __user *from, unsigned long n)
 {
-	if (access_ok(VERIFY_READ, from, n))
+	if (likely(access_ok(VERIFY_READ, from, n))) {
 		memcpy(to, (const void __force *)from, n);
-	else
-		return n;
-	return 0;
+		return 0;
+	}
+	memset(to, 0, n);
+	return n;
 }
 
 static inline unsigned long __must_check
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/blackfin/Kconfig linux-libre-4.4.107-gnu/arch/blackfin/Kconfig
--- linux-libre-4.4-gnu/arch/blackfin/Kconfig	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/blackfin/Kconfig	2017-12-20 04:05:01.000000000 -0500
@@ -318,11 +318,14 @@ config BF53x
 
 config GPIO_ADI
 	def_bool y
+	depends on !PINCTRL
 	depends on (BF51x || BF52x || BF53x || BF538 || BF539 || BF561)
 
-config PINCTRL
+config PINCTRL_BLACKFIN_ADI2
 	def_bool y
-	depends on BF54x || BF60x
+	depends on (BF54x || BF60x)
+	select PINCTRL
+	select PINCTRL_ADI2
 
 config MEM_MT48LC64M4A2FB_7E
 	bool
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/blackfin/Kconfig.debug linux-libre-4.4.107-gnu/arch/blackfin/Kconfig.debug
--- linux-libre-4.4-gnu/arch/blackfin/Kconfig.debug	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/blackfin/Kconfig.debug	2017-12-20 04:05:01.000000000 -0500
@@ -17,6 +17,7 @@ config DEBUG_VERBOSE
 
 config DEBUG_MMRS
 	tristate "Generate Blackfin MMR tree"
+	depends on !PINCTRL
 	select DEBUG_FS
 	help
 	  Create a tree of Blackfin MMRs via the debugfs tree.  If
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/blackfin/mach-bf561/boards/cm_bf561.c linux-libre-4.4.107-gnu/arch/blackfin/mach-bf561/boards/cm_bf561.c
--- linux-libre-4.4-gnu/arch/blackfin/mach-bf561/boards/cm_bf561.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/blackfin/mach-bf561/boards/cm_bf561.c	2017-12-20 04:05:01.000000000 -0500
@@ -146,7 +146,8 @@ static struct platform_device hitachi_fb
 #include <linux/smc91x.h>
 
 static struct smc91x_platdata smc91x_info = {
-	.flags = SMC91X_USE_32BIT | SMC91X_NOWAIT,
+	.flags = SMC91X_USE_8BIT | SMC91X_USE_16BIT | SMC91X_USE_32BIT |
+		 SMC91X_NOWAIT,
 	.leda = RPC_LED_100_10,
 	.ledb = RPC_LED_TX_RX,
 };
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/blackfin/mach-bf561/boards/ezkit.c linux-libre-4.4.107-gnu/arch/blackfin/mach-bf561/boards/ezkit.c
--- linux-libre-4.4-gnu/arch/blackfin/mach-bf561/boards/ezkit.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/blackfin/mach-bf561/boards/ezkit.c	2017-12-20 04:05:01.000000000 -0500
@@ -134,7 +134,8 @@ static struct platform_device net2272_bf
 #include <linux/smc91x.h>
 
 static struct smc91x_platdata smc91x_info = {
-	.flags = SMC91X_USE_32BIT | SMC91X_NOWAIT,
+	.flags = SMC91X_USE_8BIT | SMC91X_USE_16BIT | SMC91X_USE_32BIT |
+		 SMC91X_NOWAIT,
 	.leda = RPC_LED_100_10,
 	.ledb = RPC_LED_TX_RX,
 };
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/c6x/kernel/ptrace.c linux-libre-4.4.107-gnu/arch/c6x/kernel/ptrace.c
--- linux-libre-4.4-gnu/arch/c6x/kernel/ptrace.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/c6x/kernel/ptrace.c	2017-12-20 04:05:01.000000000 -0500
@@ -69,46 +69,6 @@ static int gpr_get(struct task_struct *t
 				   0, sizeof(*regs));
 }
 
-static int gpr_set(struct task_struct *target,
-		   const struct user_regset *regset,
-		   unsigned int pos, unsigned int count,
-		   const void *kbuf, const void __user *ubuf)
-{
-	int ret;
-	struct pt_regs *regs = task_pt_regs(target);
-
-	/* Don't copyin TSR or CSR */
-	ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
-				 &regs,
-				 0, PT_TSR * sizeof(long));
-	if (ret)
-		return ret;
-
-	ret = user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf,
-					PT_TSR * sizeof(long),
-					(PT_TSR + 1) * sizeof(long));
-	if (ret)
-		return ret;
-
-	ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
-				 &regs,
-				 (PT_TSR + 1) * sizeof(long),
-				 PT_CSR * sizeof(long));
-	if (ret)
-		return ret;
-
-	ret = user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf,
-					PT_CSR * sizeof(long),
-					(PT_CSR + 1) * sizeof(long));
-	if (ret)
-		return ret;
-
-	ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
-				 &regs,
-				 (PT_CSR + 1) * sizeof(long), -1);
-	return ret;
-}
-
 enum c6x_regset {
 	REGSET_GPR,
 };
@@ -120,7 +80,6 @@ static const struct user_regset c6x_regs
 		.size = sizeof(u32),
 		.align = sizeof(u32),
 		.get = gpr_get,
-		.set = gpr_set
 	},
 };
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/cris/boot/rescue/Makefile linux-libre-4.4.107-gnu/arch/cris/boot/rescue/Makefile
--- linux-libre-4.4-gnu/arch/cris/boot/rescue/Makefile	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/cris/boot/rescue/Makefile	2017-12-20 04:05:01.000000000 -0500
@@ -10,6 +10,9 @@
 
 asflags-y += $(LINUXINCLUDE)
 ccflags-y += -O2 $(LINUXINCLUDE)
+
+ifdef CONFIG_ETRAX_AXISFLASHMAP
+
 arch-$(CONFIG_ETRAX_ARCH_V10) = v10
 arch-$(CONFIG_ETRAX_ARCH_V32) = v32
 
@@ -28,6 +31,11 @@ $(obj)/rescue.bin: $(obj)/rescue.o FORCE
 	$(call if_changed,objcopy)
 	cp -p $(obj)/rescue.bin $(objtree)
 
+else
+$(obj)/rescue.bin:
+
+endif
+
 $(obj)/testrescue.bin: $(obj)/testrescue.o
 	$(OBJCOPY) $(OBJCOPYFLAGS) $(obj)/testrescue.o tr.bin
 # Pad it to 784 bytes
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/cris/include/asm/uaccess.h linux-libre-4.4.107-gnu/arch/cris/include/asm/uaccess.h
--- linux-libre-4.4-gnu/arch/cris/include/asm/uaccess.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/cris/include/asm/uaccess.h	2017-12-20 04:05:01.000000000 -0500
@@ -194,30 +194,6 @@ extern unsigned long __copy_user(void __
 extern unsigned long __copy_user_zeroing(void *to, const void __user *from, unsigned long n);
 extern unsigned long __do_clear_user(void __user *to, unsigned long n);
 
-static inline unsigned long
-__generic_copy_to_user(void __user *to, const void *from, unsigned long n)
-{
-	if (access_ok(VERIFY_WRITE, to, n))
-		return __copy_user(to, from, n);
-	return n;
-}
-
-static inline unsigned long
-__generic_copy_from_user(void *to, const void __user *from, unsigned long n)
-{
-	if (access_ok(VERIFY_READ, from, n))
-		return __copy_user_zeroing(to, from, n);
-	return n;
-}
-
-static inline unsigned long
-__generic_clear_user(void __user *to, unsigned long n)
-{
-	if (access_ok(VERIFY_WRITE, to, n))
-		return __do_clear_user(to, n);
-	return n;
-}
-
 static inline long
 __strncpy_from_user(char *dst, const char __user *src, long count)
 {
@@ -282,7 +258,7 @@ __constant_copy_from_user(void *to, cons
 	else if (n == 24)
 		__asm_copy_from_user_24(to, from, ret);
 	else
-		ret = __generic_copy_from_user(to, from, n);
+		ret = __copy_user_zeroing(to, from, n);
 
 	return ret;
 }
@@ -333,7 +309,7 @@ __constant_copy_to_user(void __user *to,
 	else if (n == 24)
 		__asm_copy_to_user_24(to, from, ret);
 	else
-		ret = __generic_copy_to_user(to, from, n);
+		ret = __copy_user(to, from, n);
 
 	return ret;
 }
@@ -366,26 +342,43 @@ __constant_clear_user(void __user *to, u
 	else if (n == 24)
 		__asm_clear_24(to, ret);
 	else
-		ret = __generic_clear_user(to, n);
+		ret = __do_clear_user(to, n);
 
 	return ret;
 }
 
 
-#define clear_user(to, n)				\
-	(__builtin_constant_p(n) ?			\
-	 __constant_clear_user(to, n) :			\
-	 __generic_clear_user(to, n))
+static inline size_t clear_user(void __user *to, size_t n)
+{
+	if (unlikely(!access_ok(VERIFY_WRITE, to, n)))
+		return n;
+	if (__builtin_constant_p(n))
+		return __constant_clear_user(to, n);
+	else
+		return __do_clear_user(to, n);
+}
 
-#define copy_from_user(to, from, n)			\
-	(__builtin_constant_p(n) ?			\
-	 __constant_copy_from_user(to, from, n) :	\
-	 __generic_copy_from_user(to, from, n))
+static inline size_t copy_from_user(void *to, const void __user *from, size_t n)
+{
+	if (unlikely(!access_ok(VERIFY_READ, from, n))) {
+		memset(to, 0, n);
+		return n;
+	}
+	if (__builtin_constant_p(n))
+		return __constant_copy_from_user(to, from, n);
+	else
+		return __copy_user_zeroing(to, from, n);
+}
 
-#define copy_to_user(to, from, n)			\
-	(__builtin_constant_p(n) ?			\
-	 __constant_copy_to_user(to, from, n) :		\
-	 __generic_copy_to_user(to, from, n))
+static inline size_t copy_to_user(void __user *to, const void *from, size_t n)
+{
+	if (unlikely(!access_ok(VERIFY_WRITE, to, n)))
+		return n;
+	if (__builtin_constant_p(n))
+		return __constant_copy_to_user(to, from, n);
+	else
+		return __copy_user(to, from, n);
+}
 
 /* We let the __ versions of copy_from/to_user inline, because they're often
  * used in fast paths and have only a small space overhead.
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/frv/include/asm/uaccess.h linux-libre-4.4.107-gnu/arch/frv/include/asm/uaccess.h
--- linux-libre-4.4-gnu/arch/frv/include/asm/uaccess.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/frv/include/asm/uaccess.h	2017-12-20 04:05:01.000000000 -0500
@@ -263,19 +263,25 @@ do {							\
 extern long __memset_user(void *dst, unsigned long count);
 extern long __memcpy_user(void *dst, const void *src, unsigned long count);
 
-#define clear_user(dst,count)			__memset_user(____force(dst), (count))
+#define __clear_user(dst,count)			__memset_user(____force(dst), (count))
 #define __copy_from_user_inatomic(to, from, n)	__memcpy_user((to), ____force(from), (n))
 #define __copy_to_user_inatomic(to, from, n)	__memcpy_user(____force(to), (from), (n))
 
 #else
 
-#define clear_user(dst,count)			(memset(____force(dst), 0, (count)), 0)
+#define __clear_user(dst,count)			(memset(____force(dst), 0, (count)), 0)
 #define __copy_from_user_inatomic(to, from, n)	(memcpy((to), ____force(from), (n)), 0)
 #define __copy_to_user_inatomic(to, from, n)	(memcpy(____force(to), (from), (n)), 0)
 
 #endif
 
-#define __clear_user clear_user
+static inline unsigned long __must_check
+clear_user(void __user *to, unsigned long n)
+{
+	if (likely(__access_ok(to, n)))
+		n = __clear_user(to, n);
+	return n;
+}
 
 static inline unsigned long __must_check
 __copy_to_user(void __user *to, const void *from, unsigned long n)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/frv/mm/elf-fdpic.c linux-libre-4.4.107-gnu/arch/frv/mm/elf-fdpic.c
--- linux-libre-4.4-gnu/arch/frv/mm/elf-fdpic.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/frv/mm/elf-fdpic.c	2017-12-20 04:05:01.000000000 -0500
@@ -74,7 +74,7 @@ unsigned long arch_get_unmapped_area(str
 		addr = PAGE_ALIGN(addr);
 		vma = find_vma(current->mm, addr);
 		if (TASK_SIZE - len >= addr &&
-		    (!vma || addr + len <= vma->vm_start))
+		    (!vma || addr + len <= vm_start_gap(vma)))
 			goto success;
 	}
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/h8300/include/asm/thread_info.h linux-libre-4.4.107-gnu/arch/h8300/include/asm/thread_info.h
--- linux-libre-4.4-gnu/arch/h8300/include/asm/thread_info.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/h8300/include/asm/thread_info.h	2017-12-20 04:05:01.000000000 -0500
@@ -31,7 +31,6 @@ struct thread_info {
 	int		   cpu;			/* cpu we're on */
 	int		   preempt_count;	/* 0 => preemptable, <0 => BUG */
 	mm_segment_t		addr_limit;
-	struct restart_block restart_block;
 };
 
 /*
@@ -44,9 +43,6 @@ struct thread_info {
 	.cpu =		0,			\
 	.preempt_count = INIT_PREEMPT_COUNT,	\
 	.addr_limit	= KERNEL_DS,		\
-	.restart_block	= {			\
-		.fn = do_no_restart_syscall,	\
-	},					\
 }
 
 #define init_thread_info	(init_thread_union.thread_info)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/h8300/kernel/ptrace.c linux-libre-4.4.107-gnu/arch/h8300/kernel/ptrace.c
--- linux-libre-4.4-gnu/arch/h8300/kernel/ptrace.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/h8300/kernel/ptrace.c	2017-12-20 04:05:01.000000000 -0500
@@ -95,7 +95,8 @@ static int regs_get(struct task_struct *
 	long *reg = (long *)&regs;
 
 	/* build user regs in buffer */
-	for (r = 0; r < ARRAY_SIZE(register_offset); r++)
+	BUILD_BUG_ON(sizeof(regs) % sizeof(long) != 0);
+	for (r = 0; r < sizeof(regs) / sizeof(long); r++)
 		*reg++ = h8300_get_reg(target, r);
 
 	return user_regset_copyout(&pos, &count, &kbuf, &ubuf,
@@ -113,7 +114,8 @@ static int regs_set(struct task_struct *
 	long *reg;
 
 	/* build user regs in buffer */
-	for (reg = (long *)&regs, r = 0; r < ARRAY_SIZE(register_offset); r++)
+	BUILD_BUG_ON(sizeof(regs) % sizeof(long) != 0);
+	for (reg = (long *)&regs, r = 0; r < sizeof(regs) / sizeof(long); r++)
 		*reg++ = h8300_get_reg(target, r);
 
 	ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
@@ -122,7 +124,7 @@ static int regs_set(struct task_struct *
 		return ret;
 
 	/* write back to pt_regs */
-	for (reg = (long *)&regs, r = 0; r < ARRAY_SIZE(register_offset); r++)
+	for (reg = (long *)&regs, r = 0; r < sizeof(regs) / sizeof(long); r++)
 		h8300_put_reg(target, r, *reg++);
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/h8300/kernel/signal.c linux-libre-4.4.107-gnu/arch/h8300/kernel/signal.c
--- linux-libre-4.4-gnu/arch/h8300/kernel/signal.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/h8300/kernel/signal.c	2017-12-20 04:05:01.000000000 -0500
@@ -79,7 +79,7 @@ restore_sigcontext(struct sigcontext *us
 	unsigned int er0;
 
 	/* Always make any pending restarted system calls return -EINTR */
-	current_thread_info()->restart_block.fn = do_no_restart_syscall;
+	current->restart_block.fn = do_no_restart_syscall;
 
 	/* restore passed registers */
 #define COPY(r)  do { err |= get_user(regs->r, &usc->sc_##r); } while (0)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/hexagon/include/asm/uaccess.h linux-libre-4.4.107-gnu/arch/hexagon/include/asm/uaccess.h
--- linux-libre-4.4-gnu/arch/hexagon/include/asm/uaccess.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/hexagon/include/asm/uaccess.h	2017-12-20 04:05:01.000000000 -0500
@@ -103,7 +103,8 @@ static inline long hexagon_strncpy_from_
 {
 	long res = __strnlen_user(src, n);
 
-	/* return from strnlen can't be zero -- that would be rubbish. */
+	if (unlikely(!res))
+		return -EFAULT;
 
 	if (res > n) {
 		copy_from_user(dst, src, n);
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/ia64/include/asm/io.h linux-libre-4.4.107-gnu/arch/ia64/include/asm/io.h
--- linux-libre-4.4-gnu/arch/ia64/include/asm/io.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/ia64/include/asm/io.h	2017-12-20 04:05:01.000000000 -0500
@@ -436,6 +436,7 @@ static inline void __iomem * ioremap_cac
 	return ioremap(phys_addr, size);
 }
 #define ioremap_cache ioremap_cache
+#define ioremap_uc ioremap_nocache
 
 
 /*
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/ia64/include/asm/uaccess.h linux-libre-4.4.107-gnu/arch/ia64/include/asm/uaccess.h
--- linux-libre-4.4-gnu/arch/ia64/include/asm/uaccess.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/ia64/include/asm/uaccess.h	2017-12-20 04:05:01.000000000 -0500
@@ -263,17 +263,15 @@ __copy_from_user (void *to, const void _
 	__cu_len;									\
 })
 
-#define copy_from_user(to, from, n)							\
-({											\
-	void *__cu_to = (to);								\
-	const void __user *__cu_from = (from);						\
-	long __cu_len = (n);								\
-											\
-	__chk_user_ptr(__cu_from);							\
-	if (__access_ok(__cu_from, __cu_len, get_fs()))					\
-		__cu_len = __copy_user((__force void __user *) __cu_to, __cu_from, __cu_len);	\
-	__cu_len;									\
-})
+static inline unsigned long
+copy_from_user(void *to, const void __user *from, unsigned long n)
+{
+	if (likely(__access_ok(from, n, get_fs())))
+		n = __copy_user((__force void __user *) to, from, n);
+	else
+		memset(to, 0, n);
+	return n;
+}
 
 #define __copy_in_user(to, from, size)	__copy_user((to), (from), (size))
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/m32r/include/asm/uaccess.h linux-libre-4.4.107-gnu/arch/m32r/include/asm/uaccess.h
--- linux-libre-4.4-gnu/arch/m32r/include/asm/uaccess.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/m32r/include/asm/uaccess.h	2017-12-20 04:05:01.000000000 -0500
@@ -219,7 +219,7 @@ extern int fixup_exception(struct pt_reg
 #define __get_user_nocheck(x, ptr, size)				\
 ({									\
 	long __gu_err = 0;						\
-	unsigned long __gu_val;						\
+	unsigned long __gu_val = 0;					\
 	might_fault();							\
 	__get_user_size(__gu_val, (ptr), (size), __gu_err);		\
 	(x) = (__force __typeof__(*(ptr)))__gu_val;			\
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/m32r/kernel/setup.c linux-libre-4.4.107-gnu/arch/m32r/kernel/setup.c
--- linux-libre-4.4-gnu/arch/m32r/kernel/setup.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/m32r/kernel/setup.c	2017-12-20 04:05:01.000000000 -0500
@@ -81,7 +81,10 @@ static struct resource code_resource = {
 };
 
 unsigned long memory_start;
+EXPORT_SYMBOL(memory_start);
+
 unsigned long memory_end;
+EXPORT_SYMBOL(memory_end);
 
 void __init setup_arch(char **);
 int get_cpuinfo(char *);
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/m68k/include/asm/delay.h linux-libre-4.4.107-gnu/arch/m68k/include/asm/delay.h
--- linux-libre-4.4-gnu/arch/m68k/include/asm/delay.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/m68k/include/asm/delay.h	2017-12-20 04:05:01.000000000 -0500
@@ -114,6 +114,6 @@ static inline void __udelay(unsigned lon
  */
 #define	HZSCALE		(268435456 / (1000000 / HZ))
 
-#define ndelay(n) __delay(DIV_ROUND_UP((n) * ((((HZSCALE) >> 11) * (loops_per_jiffy >> 11)) >> 6), 1000));
+#define ndelay(n) __delay(DIV_ROUND_UP((n) * ((((HZSCALE) >> 11) * (loops_per_jiffy >> 11)) >> 6), 1000))
 
 #endif /* defined(_M68K_DELAY_H) */
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/metag/include/asm/atomic.h linux-libre-4.4.107-gnu/arch/metag/include/asm/atomic.h
--- linux-libre-4.4-gnu/arch/metag/include/asm/atomic.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/metag/include/asm/atomic.h	2017-12-20 04:05:01.000000000 -0500
@@ -39,11 +39,10 @@
 #define atomic_dec(v) atomic_sub(1, (v))
 
 #define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0)
+#define atomic_dec_if_positive(v)       atomic_sub_if_positive(1, v)
 
 #endif
 
-#define atomic_dec_if_positive(v)       atomic_sub_if_positive(1, v)
-
 #include <asm-generic/atomic64.h>
 
 #endif /* __ASM_METAG_ATOMIC_H */
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/metag/include/asm/atomic_lnkget.h linux-libre-4.4.107-gnu/arch/metag/include/asm/atomic_lnkget.h
--- linux-libre-4.4-gnu/arch/metag/include/asm/atomic_lnkget.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/metag/include/asm/atomic_lnkget.h	2017-12-20 04:05:01.000000000 -0500
@@ -61,7 +61,7 @@ static inline int atomic_##op##_return(i
 		"	CMPT	%0, #HI(0x02000000)\n"			\
 		"	BNZ 1b\n"					\
 		: "=&d" (temp), "=&da" (result)				\
-		: "da" (&v->counter), "bd" (i)				\
+		: "da" (&v->counter), "br" (i)				\
 		: "cc");						\
 									\
 	smp_mb();							\
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/metag/include/asm/cmpxchg_lnkget.h linux-libre-4.4.107-gnu/arch/metag/include/asm/cmpxchg_lnkget.h
--- linux-libre-4.4-gnu/arch/metag/include/asm/cmpxchg_lnkget.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/metag/include/asm/cmpxchg_lnkget.h	2017-12-20 04:05:01.000000000 -0500
@@ -73,7 +73,7 @@ static inline unsigned long __cmpxchg_u3
 		      "	DCACHE	[%2], %0\n"
 #endif
 		      "2:\n"
-		      : "=&d" (temp), "=&da" (retval)
+		      : "=&d" (temp), "=&d" (retval)
 		      : "da" (m), "bd" (old), "da" (new)
 		      : "cc"
 		      );
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/metag/include/asm/uaccess.h linux-libre-4.4.107-gnu/arch/metag/include/asm/uaccess.h
--- linux-libre-4.4-gnu/arch/metag/include/asm/uaccess.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/metag/include/asm/uaccess.h	2017-12-20 04:05:01.000000000 -0500
@@ -28,24 +28,32 @@
 
 #define segment_eq(a, b)	((a).seg == (b).seg)
 
-#define __kernel_ok (segment_eq(get_fs(), KERNEL_DS))
-/*
- * Explicitly allow NULL pointers here. Parts of the kernel such
- * as readv/writev use access_ok to validate pointers, but want
- * to allow NULL pointers for various reasons. NULL pointers are
- * safe to allow through because the first page is not mappable on
- * Meta.
- *
- * We also wish to avoid letting user code access the system area
- * and the kernel half of the address space.
- */
-#define __user_bad(addr, size) (((addr) > 0 && (addr) < META_MEMORY_BASE) || \
-				((addr) > PAGE_OFFSET &&		\
-				 (addr) < LINCORE_BASE))
-
 static inline int __access_ok(unsigned long addr, unsigned long size)
 {
-	return __kernel_ok || !__user_bad(addr, size);
+	/*
+	 * Allow access to the user mapped memory area, but not the system area
+	 * before it. The check extends to the top of the address space when
+	 * kernel access is allowed (there's no real reason to user copy to the
+	 * system area in any case).
+	 */
+	if (likely(addr >= META_MEMORY_BASE && addr < get_fs().seg &&
+		   size <= get_fs().seg - addr))
+		return true;
+	/*
+	 * Explicitly allow NULL pointers here. Parts of the kernel such
+	 * as readv/writev use access_ok to validate pointers, but want
+	 * to allow NULL pointers for various reasons. NULL pointers are
+	 * safe to allow through because the first page is not mappable on
+	 * Meta.
+	 */
+	if (!addr)
+		return true;
+	/* Allow access to core code memory area... */
+	if (addr >= LINCORE_CODE_BASE && addr <= LINCORE_CODE_LIMIT &&
+	    size <= LINCORE_CODE_LIMIT + 1 - addr)
+		return true;
+	/* ... but no other areas. */
+	return false;
 }
 
 #define access_ok(type, addr, size) __access_ok((unsigned long)(addr),	\
@@ -186,8 +194,13 @@ do {
 extern long __must_check __strncpy_from_user(char *dst, const char __user *src,
 					     long count);
 
-#define strncpy_from_user(dst, src, count) __strncpy_from_user(dst, src, count)
-
+static inline long
+strncpy_from_user(char *dst, const char __user *src, long count)
+{
+	if (!access_ok(VERIFY_READ, src, 1))
+		return -EFAULT;
+	return __strncpy_from_user(dst, src, count);
+}
 /*
  * Return the size of a string (including the ending 0)
  *
@@ -197,19 +210,21 @@ extern long __must_check strnlen_user(co
 
 #define strlen_user(str) strnlen_user(str, 32767)
 
-extern unsigned long __must_check __copy_user_zeroing(void *to,
-						      const void __user *from,
-						      unsigned long n);
+extern unsigned long raw_copy_from_user(void *to, const void __user *from,
+					unsigned long n);
 
 static inline unsigned long
 copy_from_user(void *to, const void __user *from, unsigned long n)
 {
-	if (access_ok(VERIFY_READ, from, n))
-		return __copy_user_zeroing(to, from, n);
-	return n;
+	unsigned long res = n;
+	if (likely(access_ok(VERIFY_READ, from, n)))
+		res = raw_copy_from_user(to, from, n);
+	if (unlikely(res))
+		memset(to + (n - res), 0, res);
+	return res;
 }
 
-#define __copy_from_user(to, from, n) __copy_user_zeroing(to, from, n)
+#define __copy_from_user(to, from, n) raw_copy_from_user(to, from, n)
 #define __copy_from_user_inatomic __copy_from_user
 
 extern unsigned long __must_check __copy_user(void __user *to,
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/metag/kernel/ptrace.c linux-libre-4.4.107-gnu/arch/metag/kernel/ptrace.c
--- linux-libre-4.4-gnu/arch/metag/kernel/ptrace.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/metag/kernel/ptrace.c	2017-12-20 04:05:01.000000000 -0500
@@ -24,6 +24,16 @@
  * user_regset definitions.
  */
 
+static unsigned long user_txstatus(const struct pt_regs *regs)
+{
+	unsigned long data = (unsigned long)regs->ctx.Flags;
+
+	if (regs->ctx.SaveMask & TBICTX_CBUF_BIT)
+		data |= USER_GP_REGS_STATUS_CATCH_BIT;
+
+	return data;
+}
+
 int metag_gp_regs_copyout(const struct pt_regs *regs,
 			  unsigned int pos, unsigned int count,
 			  void *kbuf, void __user *ubuf)
@@ -62,9 +72,7 @@ int metag_gp_regs_copyout(const struct p
 	if (ret)
 		goto out;
 	/* TXSTATUS */
-	data = (unsigned long)regs->ctx.Flags;
-	if (regs->ctx.SaveMask & TBICTX_CBUF_BIT)
-		data |= USER_GP_REGS_STATUS_CATCH_BIT;
+	data = user_txstatus(regs);
 	ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf,
 				  &data, 4*25, 4*26);
 	if (ret)
@@ -119,6 +127,7 @@ int metag_gp_regs_copyin(struct pt_regs
 	if (ret)
 		goto out;
 	/* TXSTATUS */
+	data = user_txstatus(regs);
 	ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
 				 &data, 4*25, 4*26);
 	if (ret)
@@ -244,6 +253,8 @@ int metag_rp_state_copyin(struct pt_regs
 	unsigned long long *ptr;
 	int ret, i;
 
+	if (count < 4*13)
+		return -EINVAL;
 	/* Read the entire pipeline before making any changes */
 	ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
 				 &rp, 0, 4*13);
@@ -303,7 +314,7 @@ static int metag_tls_set(struct task_str
 			const void *kbuf, const void __user *ubuf)
 {
 	int ret;
-	void __user *tls;
+	void __user *tls = target->thread.tls_ptr;
 
 	ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, &tls, 0, -1);
 	if (ret)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/metag/lib/usercopy.c linux-libre-4.4.107-gnu/arch/metag/lib/usercopy.c
--- linux-libre-4.4-gnu/arch/metag/lib/usercopy.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/metag/lib/usercopy.c	2017-12-20 04:05:01.000000000 -0500
@@ -29,7 +29,6 @@
 		COPY						 \
 		"1:\n"						 \
 		"	.section .fixup,\"ax\"\n"		 \
-		"	MOV D1Ar1,#0\n"				 \
 		FIXUP						 \
 		"	MOVT    D1Ar1,#HI(1b)\n"		 \
 		"	JUMP    D1Ar1,#LO(1b)\n"		 \
@@ -260,27 +259,31 @@
 		"MGETL	D0FrT, D0.5, D0.6, D0.7, [%1++]\n"		\
 		"22:\n"							\
 		"MSETL	[%0++], D0FrT, D0.5, D0.6, D0.7\n"		\
-		"SUB	%3, %3, #32\n"					\
 		"23:\n"							\
-		"MGETL	D0FrT, D0.5, D0.6, D0.7, [%1++]\n"		\
+		"SUB	%3, %3, #32\n"					\
 		"24:\n"							\
+		"MGETL	D0FrT, D0.5, D0.6, D0.7, [%1++]\n"		\
+		"25:\n"							\
 		"MSETL	[%0++], D0FrT, D0.5, D0.6, D0.7\n"		\
+		"26:\n"							\
 		"SUB	%3, %3, #32\n"					\
 		"DCACHE	[%1+#-64], D0Ar6\n"				\
 		"BR	$Lloop"id"\n"					\
 									\
 		"MOV	RAPF, %1\n"					\
-		"25:\n"							\
+		"27:\n"							\
 		"MGETL	D0FrT, D0.5, D0.6, D0.7, [%1++]\n"		\
-		"26:\n"							\
+		"28:\n"							\
 		"MSETL	[%0++], D0FrT, D0.5, D0.6, D0.7\n"		\
+		"29:\n"							\
 		"SUB	%3, %3, #32\n"					\
-		"27:\n"							\
+		"30:\n"							\
 		"MGETL	D0FrT, D0.5, D0.6, D0.7, [%1++]\n"		\
-		"28:\n"							\
+		"31:\n"							\
 		"MSETL	[%0++], D0FrT, D0.5, D0.6, D0.7\n"		\
+		"32:\n"							\
 		"SUB	%0, %0, #8\n"					\
-		"29:\n"							\
+		"33:\n"							\
 		"SETL	[%0++], D0.7, D1.7\n"				\
 		"SUB	%3, %3, #32\n"					\
 		"1:"							\
@@ -312,11 +315,15 @@
 		"	.long 26b,3b\n"					\
 		"	.long 27b,3b\n"					\
 		"	.long 28b,3b\n"					\
-		"	.long 29b,4b\n"					\
+		"	.long 29b,3b\n"					\
+		"	.long 30b,3b\n"					\
+		"	.long 31b,3b\n"					\
+		"	.long 32b,3b\n"					\
+		"	.long 33b,4b\n"					\
 		"	.previous\n"					\
 		: "=r" (to), "=r" (from), "=r" (ret), "=d" (n)		\
 		: "0" (to), "1" (from), "2" (ret), "3" (n)		\
-		: "D1Ar1", "D0Ar2", "memory")
+		: "D1Ar1", "D0Ar2", "cc", "memory")
 
 /*	rewind 'to' and 'from'  pointers when a fault occurs
  *
@@ -342,7 +349,7 @@
 #define __asm_copy_to_user_64bit_rapf_loop(to,	from, ret, n, id)\
 	__asm_copy_user_64bit_rapf_loop(to, from, ret, n, id,		\
 		"LSR	D0Ar2, D0Ar2, #8\n"				\
-		"AND	D0Ar2, D0Ar2, #0x7\n"				\
+		"ANDS	D0Ar2, D0Ar2, #0x7\n"				\
 		"ADDZ	D0Ar2, D0Ar2, #4\n"				\
 		"SUB	D0Ar2, D0Ar2, #1\n"				\
 		"MOV	D1Ar1, #4\n"					\
@@ -403,47 +410,55 @@
 		"MGETD	D0FrT, D0.5, D0.6, D0.7, [%1++]\n"		\
 		"22:\n"							\
 		"MSETD	[%0++], D0FrT, D0.5, D0.6, D0.7\n"		\
-		"SUB	%3, %3, #16\n"					\
 		"23:\n"							\
-		"MGETD	D0FrT, D0.5, D0.6, D0.7, [%1++]\n"		\
-		"24:\n"							\
-		"MSETD	[%0++], D0FrT, D0.5, D0.6, D0.7\n"		\
 		"SUB	%3, %3, #16\n"					\
-		"25:\n"							\
+		"24:\n"							\
 		"MGETD	D0FrT, D0.5, D0.6, D0.7, [%1++]\n"		\
-		"26:\n"							\
+		"25:\n"							\
 		"MSETD	[%0++], D0FrT, D0.5, D0.6, D0.7\n"		\
+		"26:\n"							\
 		"SUB	%3, %3, #16\n"					\
 		"27:\n"							\
 		"MGETD	D0FrT, D0.5, D0.6, D0.7, [%1++]\n"		\
 		"28:\n"							\
 		"MSETD	[%0++], D0FrT, D0.5, D0.6, D0.7\n"		\
+		"29:\n"							\
+		"SUB	%3, %3, #16\n"					\
+		"30:\n"							\
+		"MGETD	D0FrT, D0.5, D0.6, D0.7, [%1++]\n"		\
+		"31:\n"							\
+		"MSETD	[%0++], D0FrT, D0.5, D0.6, D0.7\n"		\
+		"32:\n"							\
 		"SUB	%3, %3, #16\n"					\
 		"DCACHE	[%1+#-64], D0Ar6\n"				\
 		"BR	$Lloop"id"\n"					\
 									\
 		"MOV	RAPF, %1\n"					\
-		"29:\n"							\
+		"33:\n"							\
 		"MGETD	D0FrT, D0.5, D0.6, D0.7, [%1++]\n"		\
-		"30:\n"							\
+		"34:\n"							\
 		"MSETD	[%0++], D0FrT, D0.5, D0.6, D0.7\n"		\
+		"35:\n"							\
 		"SUB	%3, %3, #16\n"					\
-		"31:\n"							\
+		"36:\n"							\
 		"MGETD	D0FrT, D0.5, D0.6, D0.7, [%1++]\n"		\
-		"32:\n"							\
+		"37:\n"							\
 		"MSETD	[%0++], D0FrT, D0.5, D0.6, D0.7\n"		\
+		"38:\n"							\
 		"SUB	%3, %3, #16\n"					\
-		"33:\n"							\
+		"39:\n"							\
 		"MGETD	D0FrT, D0.5, D0.6, D0.7, [%1++]\n"		\
-		"34:\n"							\
+		"40:\n"							\
 		"MSETD	[%0++], D0FrT, D0.5, D0.6, D0.7\n"		\
+		"41:\n"							\
 		"SUB	%3, %3, #16\n"					\
-		"35:\n"							\
+		"42:\n"							\
 		"MGETD	D0FrT, D0.5, D0.6, D0.7, [%1++]\n"		\
-		"36:\n"							\
+		"43:\n"							\
 		"MSETD	[%0++], D0FrT, D0.5, D0.6, D0.7\n"		\
+		"44:\n"							\
 		"SUB	%0, %0, #4\n"					\
-		"37:\n"							\
+		"45:\n"							\
 		"SETD	[%0++], D0.7\n"					\
 		"SUB	%3, %3, #16\n"					\
 		"1:"							\
@@ -483,11 +498,19 @@
 		"	.long 34b,3b\n"					\
 		"	.long 35b,3b\n"					\
 		"	.long 36b,3b\n"					\
-		"	.long 37b,4b\n"					\
+		"	.long 37b,3b\n"					\
+		"	.long 38b,3b\n"					\
+		"	.long 39b,3b\n"					\
+		"	.long 40b,3b\n"					\
+		"	.long 41b,3b\n"					\
+		"	.long 42b,3b\n"					\
+		"	.long 43b,3b\n"					\
+		"	.long 44b,3b\n"					\
+		"	.long 45b,4b\n"					\
 		"	.previous\n"					\
 		: "=r" (to), "=r" (from), "=r" (ret), "=d" (n)		\
 		: "0" (to), "1" (from), "2" (ret), "3" (n)		\
-		: "D1Ar1", "D0Ar2", "memory")
+		: "D1Ar1", "D0Ar2", "cc", "memory")
 
 /*	rewind 'to' and 'from'  pointers when a fault occurs
  *
@@ -513,7 +536,7 @@
 #define __asm_copy_to_user_32bit_rapf_loop(to, from, ret, n, id)\
 	__asm_copy_user_32bit_rapf_loop(to, from, ret, n, id,		\
 		"LSR	D0Ar2, D0Ar2, #8\n"				\
-		"AND	D0Ar2, D0Ar2, #0x7\n"				\
+		"ANDS	D0Ar2, D0Ar2, #0x7\n"				\
 		"ADDZ	D0Ar2, D0Ar2, #4\n"				\
 		"SUB	D0Ar2, D0Ar2, #1\n"				\
 		"MOV	D1Ar1, #4\n"					\
@@ -538,23 +561,31 @@ unsigned long __copy_user(void __user *p
 	if ((unsigned long) src & 1) {
 		__asm_copy_to_user_1(dst, src, retn);
 		n--;
+		if (retn)
+			return retn + n;
 	}
 	if ((unsigned long) dst & 1) {
 		/* Worst case - byte copy */
 		while (n > 0) {
 			__asm_copy_to_user_1(dst, src, retn);
 			n--;
+			if (retn)
+				return retn + n;
 		}
 	}
 	if (((unsigned long) src & 2) && n >= 2) {
 		__asm_copy_to_user_2(dst, src, retn);
 		n -= 2;
+		if (retn)
+			return retn + n;
 	}
 	if ((unsigned long) dst & 2) {
 		/* Second worst case - word copy */
 		while (n >= 2) {
 			__asm_copy_to_user_2(dst, src, retn);
 			n -= 2;
+			if (retn)
+				return retn + n;
 		}
 	}
 
@@ -569,6 +600,8 @@ unsigned long __copy_user(void __user *p
 		while (n >= 8) {
 			__asm_copy_to_user_8x64(dst, src, retn);
 			n -= 8;
+			if (retn)
+				return retn + n;
 		}
 	}
 	if (n >= RAPF_MIN_BUF_SIZE) {
@@ -581,6 +614,8 @@ unsigned long __copy_user(void __user *p
 		while (n >= 8) {
 			__asm_copy_to_user_8x64(dst, src, retn);
 			n -= 8;
+			if (retn)
+				return retn + n;
 		}
 	}
 #endif
@@ -588,11 +623,15 @@ unsigned long __copy_user(void __user *p
 	while (n >= 16) {
 		__asm_copy_to_user_16(dst, src, retn);
 		n -= 16;
+		if (retn)
+			return retn + n;
 	}
 
 	while (n >= 4) {
 		__asm_copy_to_user_4(dst, src, retn);
 		n -= 4;
+		if (retn)
+			return retn + n;
 	}
 
 	switch (n) {
@@ -609,6 +648,10 @@ unsigned long __copy_user(void __user *p
 		break;
 	}
 
+	/*
+	 * If we get here, retn correctly reflects the number of failing
+	 * bytes.
+	 */
 	return retn;
 }
 EXPORT_SYMBOL(__copy_user);
@@ -617,16 +660,14 @@ EXPORT_SYMBOL(__copy_user);
 	__asm_copy_user_cont(to, from, ret,	\
 		"	GETB D1Ar1,[%1++]\n"	\
 		"2:	SETB [%0++],D1Ar1\n",	\
-		"3:	ADD  %2,%2,#1\n"	\
-		"	SETB [%0++],D1Ar1\n",	\
+		"3:	ADD  %2,%2,#1\n",	\
 		"	.long 2b,3b\n")
 
 #define __asm_copy_from_user_2x_cont(to, from, ret, COPY, FIXUP, TENTRY) \
 	__asm_copy_user_cont(to, from, ret,		\
 		"	GETW D1Ar1,[%1++]\n"		\
 		"2:	SETW [%0++],D1Ar1\n" COPY,	\
-		"3:	ADD  %2,%2,#2\n"		\
-		"	SETW [%0++],D1Ar1\n" FIXUP,	\
+		"3:	ADD  %2,%2,#2\n" FIXUP,		\
 		"	.long 2b,3b\n" TENTRY)
 
 #define __asm_copy_from_user_2(to, from, ret) \
@@ -636,145 +677,26 @@ EXPORT_SYMBOL(__copy_user);
 	__asm_copy_from_user_2x_cont(to, from, ret,	\
 		"	GETB D1Ar1,[%1++]\n"		\
 		"4:	SETB [%0++],D1Ar1\n",		\
-		"5:	ADD  %2,%2,#1\n"		\
-		"	SETB [%0++],D1Ar1\n",		\
+		"5:	ADD  %2,%2,#1\n",		\
 		"	.long 4b,5b\n")
 
 #define __asm_copy_from_user_4x_cont(to, from, ret, COPY, FIXUP, TENTRY) \
 	__asm_copy_user_cont(to, from, ret,		\
 		"	GETD D1Ar1,[%1++]\n"		\
 		"2:	SETD [%0++],D1Ar1\n" COPY,	\
-		"3:	ADD  %2,%2,#4\n"		\
-		"	SETD [%0++],D1Ar1\n" FIXUP,	\
+		"3:	ADD  %2,%2,#4\n" FIXUP,		\
 		"	.long 2b,3b\n" TENTRY)
 
 #define __asm_copy_from_user_4(to, from, ret) \
 	__asm_copy_from_user_4x_cont(to, from, ret, "", "", "")
 
-#define __asm_copy_from_user_5(to, from, ret) \
-	__asm_copy_from_user_4x_cont(to, from, ret,	\
-		"	GETB D1Ar1,[%1++]\n"		\
-		"4:	SETB [%0++],D1Ar1\n",		\
-		"5:	ADD  %2,%2,#1\n"		\
-		"	SETB [%0++],D1Ar1\n",		\
-		"	.long 4b,5b\n")
-
-#define __asm_copy_from_user_6x_cont(to, from, ret, COPY, FIXUP, TENTRY) \
-	__asm_copy_from_user_4x_cont(to, from, ret,	\
-		"	GETW D1Ar1,[%1++]\n"		\
-		"4:	SETW [%0++],D1Ar1\n" COPY,	\
-		"5:	ADD  %2,%2,#2\n"		\
-		"	SETW [%0++],D1Ar1\n" FIXUP,	\
-		"	.long 4b,5b\n" TENTRY)
-
-#define __asm_copy_from_user_6(to, from, ret) \
-	__asm_copy_from_user_6x_cont(to, from, ret, "", "", "")
-
-#define __asm_copy_from_user_7(to, from, ret) \
-	__asm_copy_from_user_6x_cont(to, from, ret,	\
-		"	GETB D1Ar1,[%1++]\n"		\
-		"6:	SETB [%0++],D1Ar1\n",		\
-		"7:	ADD  %2,%2,#1\n"		\
-		"	SETB [%0++],D1Ar1\n",		\
-		"	.long 6b,7b\n")
-
-#define __asm_copy_from_user_8x_cont(to, from, ret, COPY, FIXUP, TENTRY) \
-	__asm_copy_from_user_4x_cont(to, from, ret,	\
-		"	GETD D1Ar1,[%1++]\n"		\
-		"4:	SETD [%0++],D1Ar1\n" COPY,	\
-		"5:	ADD  %2,%2,#4\n"			\
-		"	SETD [%0++],D1Ar1\n" FIXUP,		\
-		"	.long 4b,5b\n" TENTRY)
-
-#define __asm_copy_from_user_8(to, from, ret) \
-	__asm_copy_from_user_8x_cont(to, from, ret, "", "", "")
-
-#define __asm_copy_from_user_9(to, from, ret) \
-	__asm_copy_from_user_8x_cont(to, from, ret,	\
-		"	GETB D1Ar1,[%1++]\n"		\
-		"6:	SETB [%0++],D1Ar1\n",		\
-		"7:	ADD  %2,%2,#1\n"		\
-		"	SETB [%0++],D1Ar1\n",		\
-		"	.long 6b,7b\n")
-
-#define __asm_copy_from_user_10x_cont(to, from, ret, COPY, FIXUP, TENTRY) \
-	__asm_copy_from_user_8x_cont(to, from, ret,	\
-		"	GETW D1Ar1,[%1++]\n"		\
-		"6:	SETW [%0++],D1Ar1\n" COPY,	\
-		"7:	ADD  %2,%2,#2\n"		\
-		"	SETW [%0++],D1Ar1\n" FIXUP,	\
-		"	.long 6b,7b\n" TENTRY)
-
-#define __asm_copy_from_user_10(to, from, ret) \
-	__asm_copy_from_user_10x_cont(to, from, ret, "", "", "")
-
-#define __asm_copy_from_user_11(to, from, ret)		\
-	__asm_copy_from_user_10x_cont(to, from, ret,	\
-		"	GETB D1Ar1,[%1++]\n"		\
-		"8:	SETB [%0++],D1Ar1\n",		\
-		"9:	ADD  %2,%2,#1\n"		\
-		"	SETB [%0++],D1Ar1\n",		\
-		"	.long 8b,9b\n")
-
-#define __asm_copy_from_user_12x_cont(to, from, ret, COPY, FIXUP, TENTRY) \
-	__asm_copy_from_user_8x_cont(to, from, ret,	\
-		"	GETD D1Ar1,[%1++]\n"		\
-		"6:	SETD [%0++],D1Ar1\n" COPY,	\
-		"7:	ADD  %2,%2,#4\n"		\
-		"	SETD [%0++],D1Ar1\n" FIXUP,	\
-		"	.long 6b,7b\n" TENTRY)
-
-#define __asm_copy_from_user_12(to, from, ret) \
-	__asm_copy_from_user_12x_cont(to, from, ret, "", "", "")
-
-#define __asm_copy_from_user_13(to, from, ret) \
-	__asm_copy_from_user_12x_cont(to, from, ret,	\
-		"	GETB D1Ar1,[%1++]\n"		\
-		"8:	SETB [%0++],D1Ar1\n",		\
-		"9:	ADD  %2,%2,#1\n"		\
-		"	SETB [%0++],D1Ar1\n",		\
-		"	.long 8b,9b\n")
-
-#define __asm_copy_from_user_14x_cont(to, from, ret, COPY, FIXUP, TENTRY) \
-	__asm_copy_from_user_12x_cont(to, from, ret,	\
-		"	GETW D1Ar1,[%1++]\n"		\
-		"8:	SETW [%0++],D1Ar1\n" COPY,	\
-		"9:	ADD  %2,%2,#2\n"		\
-		"	SETW [%0++],D1Ar1\n" FIXUP,	\
-		"	.long 8b,9b\n" TENTRY)
-
-#define __asm_copy_from_user_14(to, from, ret) \
-	__asm_copy_from_user_14x_cont(to, from, ret, "", "", "")
-
-#define __asm_copy_from_user_15(to, from, ret) \
-	__asm_copy_from_user_14x_cont(to, from, ret,	\
-		"	GETB D1Ar1,[%1++]\n"		\
-		"10:	SETB [%0++],D1Ar1\n",		\
-		"11:	ADD  %2,%2,#1\n"		\
-		"	SETB [%0++],D1Ar1\n",		\
-		"	.long 10b,11b\n")
-
-#define __asm_copy_from_user_16x_cont(to, from, ret, COPY, FIXUP, TENTRY) \
-	__asm_copy_from_user_12x_cont(to, from, ret,	\
-		"	GETD D1Ar1,[%1++]\n"		\
-		"8:	SETD [%0++],D1Ar1\n" COPY,	\
-		"9:	ADD  %2,%2,#4\n"		\
-		"	SETD [%0++],D1Ar1\n" FIXUP,	\
-		"	.long 8b,9b\n" TENTRY)
-
-#define __asm_copy_from_user_16(to, from, ret) \
-	__asm_copy_from_user_16x_cont(to, from, ret, "", "", "")
-
 #define __asm_copy_from_user_8x64(to, from, ret) \
 	asm volatile (				\
 		"	GETL D0Ar2,D1Ar1,[%1++]\n"	\
 		"2:	SETL [%0++],D0Ar2,D1Ar1\n"	\
 		"1:\n"					\
 		"	.section .fixup,\"ax\"\n"	\
-		"	MOV D1Ar1,#0\n"			\
-		"	MOV D0Ar2,#0\n"			\
 		"3:	ADD  %2,%2,#8\n"		\
-		"	SETL [%0++],D0Ar2,D1Ar1\n"	\
 		"	MOVT    D0Ar2,#HI(1b)\n"	\
 		"	JUMP    D0Ar2,#LO(1b)\n"	\
 		"	.previous\n"			\
@@ -789,36 +711,57 @@ EXPORT_SYMBOL(__copy_user);
  *
  *	Rationale:
  *		A fault occurs while reading from user buffer, which is the
- *		source. Since the fault is at a single address, we only
- *		need to rewind by 8 bytes.
+ *		source.
  *		Since we don't write to kernel buffer until we read first,
  *		the kernel buffer is at the right state and needn't be
- *		corrected.
+ *		corrected, but the source must be rewound to the beginning of
+ *		the block, which is LSM_STEP*8 bytes.
+ *		LSM_STEP is bits 10:8 in TXSTATUS which is already read
+ *		and stored in D0Ar2
+ *
+ *		NOTE: If a fault occurs at the last operation in M{G,S}ETL
+ *			LSM_STEP will be 0. ie: we do 4 writes in our case, if
+ *			a fault happens at the 4th write, LSM_STEP will be 0
+ *			instead of 4. The code copes with that.
  */
 #define __asm_copy_from_user_64bit_rapf_loop(to, from, ret, n, id)	\
 	__asm_copy_user_64bit_rapf_loop(to, from, ret, n, id,		\
-		"SUB	%1, %1, #8\n")
+		"LSR	D0Ar2, D0Ar2, #5\n"				\
+		"ANDS	D0Ar2, D0Ar2, #0x38\n"				\
+		"ADDZ	D0Ar2, D0Ar2, #32\n"				\
+		"SUB	%1, %1, D0Ar2\n")
 
 /*	rewind 'from' pointer when a fault occurs
  *
  *	Rationale:
  *		A fault occurs while reading from user buffer, which is the
- *		source. Since the fault is at a single address, we only
- *		need to rewind by 4 bytes.
+ *		source.
  *		Since we don't write to kernel buffer until we read first,
  *		the kernel buffer is at the right state and needn't be
- *		corrected.
+ *		corrected, but the source must be rewound to the beginning of
+ *		the block, which is LSM_STEP*4 bytes.
+ *		LSM_STEP is bits 10:8 in TXSTATUS which is already read
+ *		and stored in D0Ar2
+ *
+ *		NOTE: If a fault occurs at the last operation in M{G,S}ETL
+ *			LSM_STEP will be 0. ie: we do 4 writes in our case, if
+ *			a fault happens at the 4th write, LSM_STEP will be 0
+ *			instead of 4. The code copes with that.
  */
 #define __asm_copy_from_user_32bit_rapf_loop(to, from, ret, n, id)	\
 	__asm_copy_user_32bit_rapf_loop(to, from, ret, n, id,		\
-		"SUB	%1, %1, #4\n")
+		"LSR	D0Ar2, D0Ar2, #6\n"				\
+		"ANDS	D0Ar2, D0Ar2, #0x1c\n"				\
+		"ADDZ	D0Ar2, D0Ar2, #16\n"				\
+		"SUB	%1, %1, D0Ar2\n")
 
 
-/* Copy from user to kernel, zeroing the bytes that were inaccessible in
-   userland.  The return-value is the number of bytes that were
-   inaccessible.  */
-unsigned long __copy_user_zeroing(void *pdst, const void __user *psrc,
-				  unsigned long n)
+/*
+ * Copy from user to kernel. The return-value is the number of bytes that were
+ * inaccessible.
+ */
+unsigned long raw_copy_from_user(void *pdst, const void __user *psrc,
+				 unsigned long n)
 {
 	register char *dst asm ("A0.2") = pdst;
 	register const char __user *src asm ("A1.2") = psrc;
@@ -830,6 +773,8 @@ unsigned long __copy_user_zeroing(void *
 	if ((unsigned long) src & 1) {
 		__asm_copy_from_user_1(dst, src, retn);
 		n--;
+		if (retn)
+			return retn + n;
 	}
 	if ((unsigned long) dst & 1) {
 		/* Worst case - byte copy */
@@ -837,12 +782,14 @@ unsigned long __copy_user_zeroing(void *
 			__asm_copy_from_user_1(dst, src, retn);
 			n--;
 			if (retn)
-				goto copy_exception_bytes;
+				return retn + n;
 		}
 	}
 	if (((unsigned long) src & 2) && n >= 2) {
 		__asm_copy_from_user_2(dst, src, retn);
 		n -= 2;
+		if (retn)
+			return retn + n;
 	}
 	if ((unsigned long) dst & 2) {
 		/* Second worst case - word copy */
@@ -850,16 +797,10 @@ unsigned long __copy_user_zeroing(void *
 			__asm_copy_from_user_2(dst, src, retn);
 			n -= 2;
 			if (retn)
-				goto copy_exception_bytes;
+				return retn + n;
 		}
 	}
 
-	/* We only need one check after the unalignment-adjustments,
-	   because if both adjustments were done, either both or
-	   neither reference had an exception.  */
-	if (retn != 0)
-		goto copy_exception_bytes;
-
 #ifdef USE_RAPF
 	/* 64 bit copy loop */
 	if (!(((unsigned long) src | (unsigned long) dst) & 7)) {
@@ -872,7 +813,7 @@ unsigned long __copy_user_zeroing(void *
 			__asm_copy_from_user_8x64(dst, src, retn);
 			n -= 8;
 			if (retn)
-				goto copy_exception_bytes;
+				return retn + n;
 		}
 	}
 
@@ -888,7 +829,7 @@ unsigned long __copy_user_zeroing(void *
 			__asm_copy_from_user_8x64(dst, src, retn);
 			n -= 8;
 			if (retn)
-				goto copy_exception_bytes;
+				return retn + n;
 		}
 	}
 #endif
@@ -898,7 +839,7 @@ unsigned long __copy_user_zeroing(void *
 		n -= 4;
 
 		if (retn)
-			goto copy_exception_bytes;
+			return retn + n;
 	}
 
 	/* If we get here, there were no memory read faults.  */
@@ -924,21 +865,8 @@ unsigned long __copy_user_zeroing(void *
 	/* If we get here, retn correctly reflects the number of failing
 	   bytes.  */
 	return retn;
-
- copy_exception_bytes:
-	/* We already have "retn" bytes cleared, and need to clear the
-	   remaining "n" bytes.  A non-optimized simple byte-for-byte in-line
-	   memset is preferred here, since this isn't speed-critical code and
-	   we'd rather have this a leaf-function than calling memset.  */
-	{
-		char *endp;
-		for (endp = dst + n; dst < endp; dst++)
-			*dst = 0;
-	}
-
-	return retn + n;
 }
-EXPORT_SYMBOL(__copy_user_zeroing);
+EXPORT_SYMBOL(raw_copy_from_user);
 
 #define __asm_clear_8x64(to, ret) \
 	asm volatile (					\
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/microblaze/include/asm/uaccess.h linux-libre-4.4.107-gnu/arch/microblaze/include/asm/uaccess.h
--- linux-libre-4.4-gnu/arch/microblaze/include/asm/uaccess.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/microblaze/include/asm/uaccess.h	2017-12-20 04:05:01.000000000 -0500
@@ -227,7 +227,7 @@ extern long __user_bad(void);
 
 #define __get_user(x, ptr)						\
 ({									\
-	unsigned long __gu_val;						\
+	unsigned long __gu_val = 0;					\
 	/*unsigned long __gu_ptr = (unsigned long)(ptr);*/		\
 	long __gu_err;							\
 	switch (sizeof(*(ptr))) {					\
@@ -373,10 +373,13 @@ extern long __user_bad(void);
 static inline long copy_from_user(void *to,
 		const void __user *from, unsigned long n)
 {
+	unsigned long res = n;
 	might_fault();
-	if (access_ok(VERIFY_READ, from, n))
-		return __copy_from_user(to, from, n);
-	return n;
+	if (likely(access_ok(VERIFY_READ, from, n)))
+		res = __copy_from_user(to, from, n);
+	if (unlikely(res))
+		memset(to + (n - res), 0, res);
+	return res;
 }
 
 #define __copy_to_user(to, from, n)	\
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/alchemy/devboards/db1000.c linux-libre-4.4.107-gnu/arch/mips/alchemy/devboards/db1000.c
--- linux-libre-4.4-gnu/arch/mips/alchemy/devboards/db1000.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/alchemy/devboards/db1000.c	2017-12-20 04:05:01.000000000 -0500
@@ -503,15 +503,15 @@ int __init db1000_dev_setup(void)
 	if (board == BCSR_WHOAMI_DB1500) {
 		c0 = AU1500_GPIO2_INT;
 		c1 = AU1500_GPIO5_INT;
-		d0 = AU1500_GPIO0_INT;
-		d1 = AU1500_GPIO3_INT;
+		d0 = 0;	/* GPIO number, NOT irq! */
+		d1 = 3; /* GPIO number, NOT irq! */
 		s0 = AU1500_GPIO1_INT;
 		s1 = AU1500_GPIO4_INT;
 	} else if (board == BCSR_WHOAMI_DB1100) {
 		c0 = AU1100_GPIO2_INT;
 		c1 = AU1100_GPIO5_INT;
-		d0 = AU1100_GPIO0_INT;
-		d1 = AU1100_GPIO3_INT;
+		d0 = 0; /* GPIO number, NOT irq! */
+		d1 = 3; /* GPIO number, NOT irq! */
 		s0 = AU1100_GPIO1_INT;
 		s1 = AU1100_GPIO4_INT;
 
@@ -545,15 +545,15 @@ int __init db1000_dev_setup(void)
 	} else if (board == BCSR_WHOAMI_DB1000) {
 		c0 = AU1000_GPIO2_INT;
 		c1 = AU1000_GPIO5_INT;
-		d0 = AU1000_GPIO0_INT;
-		d1 = AU1000_GPIO3_INT;
+		d0 = 0; /* GPIO number, NOT irq! */
+		d1 = 3; /* GPIO number, NOT irq! */
 		s0 = AU1000_GPIO1_INT;
 		s1 = AU1000_GPIO4_INT;
 		platform_add_devices(db1000_devs, ARRAY_SIZE(db1000_devs));
 	} else if ((board == BCSR_WHOAMI_PB1500) ||
 		   (board == BCSR_WHOAMI_PB1500R2)) {
 		c0 = AU1500_GPIO203_INT;
-		d0 = AU1500_GPIO201_INT;
+		d0 = 1; /* GPIO number, NOT irq! */
 		s0 = AU1500_GPIO202_INT;
 		twosocks = 0;
 		flashsize = 64;
@@ -566,7 +566,7 @@ int __init db1000_dev_setup(void)
 		 */
 	} else if (board == BCSR_WHOAMI_PB1100) {
 		c0 = AU1100_GPIO11_INT;
-		d0 = AU1100_GPIO9_INT;
+		d0 = 9; /* GPIO number, NOT irq! */
 		s0 = AU1100_GPIO10_INT;
 		twosocks = 0;
 		flashsize = 64;
@@ -583,7 +583,6 @@ int __init db1000_dev_setup(void)
 	} else
 		return 0; /* unknown board, no further dev setup to do */
 
-	irq_set_irq_type(d0, IRQ_TYPE_EDGE_BOTH);
 	irq_set_irq_type(c0, IRQ_TYPE_LEVEL_LOW);
 	irq_set_irq_type(s0, IRQ_TYPE_LEVEL_LOW);
 
@@ -597,7 +596,6 @@ int __init db1000_dev_setup(void)
 		c0, d0, /*s0*/0, 0, 0);
 
 	if (twosocks) {
-		irq_set_irq_type(d1, IRQ_TYPE_EDGE_BOTH);
 		irq_set_irq_type(c1, IRQ_TYPE_LEVEL_LOW);
 		irq_set_irq_type(s1, IRQ_TYPE_LEVEL_LOW);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/alchemy/devboards/db1550.c linux-libre-4.4.107-gnu/arch/mips/alchemy/devboards/db1550.c
--- linux-libre-4.4-gnu/arch/mips/alchemy/devboards/db1550.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/alchemy/devboards/db1550.c	2017-12-20 04:05:01.000000000 -0500
@@ -514,7 +514,7 @@ static void __init db1550_devices(void)
 		AU1000_PCMCIA_MEM_PHYS_ADDR  + 0x000400000 - 1,
 		AU1000_PCMCIA_IO_PHYS_ADDR,
 		AU1000_PCMCIA_IO_PHYS_ADDR   + 0x000010000 - 1,
-		AU1550_GPIO3_INT, AU1550_GPIO0_INT,
+		AU1550_GPIO3_INT, 0,
 		/*AU1550_GPIO21_INT*/0, 0, 0);
 
 	db1x_register_pcmcia_socket(
@@ -524,7 +524,7 @@ static void __init db1550_devices(void)
 		AU1000_PCMCIA_MEM_PHYS_ADDR  + 0x004400000 - 1,
 		AU1000_PCMCIA_IO_PHYS_ADDR   + 0x004000000,
 		AU1000_PCMCIA_IO_PHYS_ADDR   + 0x004010000 - 1,
-		AU1550_GPIO5_INT, AU1550_GPIO1_INT,
+		AU1550_GPIO5_INT, 1,
 		/*AU1550_GPIO22_INT*/0, 0, 1);
 
 	platform_device_register(&db1550_nand_dev);
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/ar7/platform.c linux-libre-4.4.107-gnu/arch/mips/ar7/platform.c
--- linux-libre-4.4-gnu/arch/mips/ar7/platform.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/ar7/platform.c	2017-12-20 04:05:01.000000000 -0500
@@ -576,6 +576,7 @@ static int __init ar7_register_uarts(voi
 	uart_port.type		= PORT_AR7;
 	uart_port.uartclk	= clk_get_rate(bus_clk) / 2;
 	uart_port.iotype	= UPIO_MEM32;
+	uart_port.flags		= UPF_FIXED_TYPE;
 	uart_port.regshift	= 2;
 
 	uart_port.line		= 0;
@@ -654,6 +655,10 @@ static int __init ar7_register_devices(v
 	u32 val;
 	int res;
 
+	res = ar7_gpio_init();
+	if (res)
+		pr_warn("unable to register gpios: %d\n", res);
+
 	res = ar7_register_uarts();
 	if (res)
 		pr_err("unable to setup uart(s): %d\n", res);
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/ar7/prom.c linux-libre-4.4.107-gnu/arch/mips/ar7/prom.c
--- linux-libre-4.4-gnu/arch/mips/ar7/prom.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/ar7/prom.c	2017-12-20 04:05:01.000000000 -0500
@@ -246,8 +246,6 @@ void __init prom_init(void)
 	ar7_init_cmdline(fw_arg0, (char **)fw_arg1);
 	ar7_init_env((struct env_var *)fw_arg2);
 	console_config();
-
-	ar7_gpio_init();
 }
 
 #define PORT(offset) (KSEG1ADDR(AR7_REGS_UART0 + (offset * 4)))
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/ath79/common.c linux-libre-4.4.107-gnu/arch/mips/ath79/common.c
--- linux-libre-4.4-gnu/arch/mips/ath79/common.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/ath79/common.c	2017-12-20 04:05:01.000000000 -0500
@@ -76,14 +76,14 @@ void ath79_ddr_set_pci_windows(void)
 {
 	BUG_ON(!ath79_ddr_pci_win_base);
 
-	__raw_writel(AR71XX_PCI_WIN0_OFFS, ath79_ddr_pci_win_base + 0);
-	__raw_writel(AR71XX_PCI_WIN1_OFFS, ath79_ddr_pci_win_base + 1);
-	__raw_writel(AR71XX_PCI_WIN2_OFFS, ath79_ddr_pci_win_base + 2);
-	__raw_writel(AR71XX_PCI_WIN3_OFFS, ath79_ddr_pci_win_base + 3);
-	__raw_writel(AR71XX_PCI_WIN4_OFFS, ath79_ddr_pci_win_base + 4);
-	__raw_writel(AR71XX_PCI_WIN5_OFFS, ath79_ddr_pci_win_base + 5);
-	__raw_writel(AR71XX_PCI_WIN6_OFFS, ath79_ddr_pci_win_base + 6);
-	__raw_writel(AR71XX_PCI_WIN7_OFFS, ath79_ddr_pci_win_base + 7);
+	__raw_writel(AR71XX_PCI_WIN0_OFFS, ath79_ddr_pci_win_base + 0x0);
+	__raw_writel(AR71XX_PCI_WIN1_OFFS, ath79_ddr_pci_win_base + 0x4);
+	__raw_writel(AR71XX_PCI_WIN2_OFFS, ath79_ddr_pci_win_base + 0x8);
+	__raw_writel(AR71XX_PCI_WIN3_OFFS, ath79_ddr_pci_win_base + 0xc);
+	__raw_writel(AR71XX_PCI_WIN4_OFFS, ath79_ddr_pci_win_base + 0x10);
+	__raw_writel(AR71XX_PCI_WIN5_OFFS, ath79_ddr_pci_win_base + 0x14);
+	__raw_writel(AR71XX_PCI_WIN6_OFFS, ath79_ddr_pci_win_base + 0x18);
+	__raw_writel(AR71XX_PCI_WIN7_OFFS, ath79_ddr_pci_win_base + 0x1c);
 }
 EXPORT_SYMBOL_GPL(ath79_ddr_set_pci_windows);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/ath79/early_printk.c linux-libre-4.4.107-gnu/arch/mips/ath79/early_printk.c
--- linux-libre-4.4-gnu/arch/mips/ath79/early_printk.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/ath79/early_printk.c	2017-12-20 04:05:01.000000000 -0500
@@ -31,13 +31,15 @@ static inline void prom_putchar_wait(voi
 	} while (1);
 }
 
+#define BOTH_EMPTY (UART_LSR_TEMT | UART_LSR_THRE)
+
 static void prom_putchar_ar71xx(unsigned char ch)
 {
 	void __iomem *base = (void __iomem *)(KSEG1ADDR(AR71XX_UART_BASE));
 
-	prom_putchar_wait(base + UART_LSR * 4, UART_LSR_THRE, UART_LSR_THRE);
+	prom_putchar_wait(base + UART_LSR * 4, BOTH_EMPTY, BOTH_EMPTY);
 	__raw_writel(ch, base + UART_TX * 4);
-	prom_putchar_wait(base + UART_LSR * 4, UART_LSR_THRE, UART_LSR_THRE);
+	prom_putchar_wait(base + UART_LSR * 4, BOTH_EMPTY, BOTH_EMPTY);
 }
 
 static void prom_putchar_ar933x(unsigned char ch)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/bcm47xx/buttons.c linux-libre-4.4.107-gnu/arch/mips/bcm47xx/buttons.c
--- linux-libre-4.4-gnu/arch/mips/bcm47xx/buttons.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/bcm47xx/buttons.c	2017-12-20 04:05:01.000000000 -0500
@@ -17,6 +17,12 @@
 		.active_low	= 1,					\
 	}
 
+#define BCM47XX_GPIO_KEY_H(_gpio, _code)				\
+	{								\
+		.code		= _code,				\
+		.gpio		= _gpio,				\
+	}
+
 /* Asus */
 
 static const struct gpio_keys_button
@@ -79,8 +85,8 @@ bcm47xx_buttons_asus_wl500gpv2[] __initc
 
 static const struct gpio_keys_button
 bcm47xx_buttons_asus_wl500w[] __initconst = {
-	BCM47XX_GPIO_KEY(6, KEY_RESTART),
-	BCM47XX_GPIO_KEY(7, KEY_WPS_BUTTON),
+	BCM47XX_GPIO_KEY_H(6, KEY_RESTART),
+	BCM47XX_GPIO_KEY_H(7, KEY_WPS_BUTTON),
 };
 
 static const struct gpio_keys_button
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/bcm47xx/leds.c linux-libre-4.4.107-gnu/arch/mips/bcm47xx/leds.c
--- linux-libre-4.4-gnu/arch/mips/bcm47xx/leds.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/bcm47xx/leds.c	2017-12-20 04:05:01.000000000 -0500
@@ -330,7 +330,7 @@ bcm47xx_leds_linksys_wrt54g3gv2[] __init
 /* Verified on: WRT54GS V1.0 */
 static const struct gpio_led
 bcm47xx_leds_linksys_wrt54g_type_0101[] __initconst = {
-	BCM47XX_GPIO_LED(0, "green", "wlan", 0, LEDS_GPIO_DEFSTATE_OFF),
+	BCM47XX_GPIO_LED(0, "green", "wlan", 1, LEDS_GPIO_DEFSTATE_OFF),
 	BCM47XX_GPIO_LED(1, "green", "power", 0, LEDS_GPIO_DEFSTATE_ON),
 	BCM47XX_GPIO_LED(7, "green", "dmz", 1, LEDS_GPIO_DEFSTATE_OFF),
 };
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/cavium-octeon/octeon-memcpy.S linux-libre-4.4.107-gnu/arch/mips/cavium-octeon/octeon-memcpy.S
--- linux-libre-4.4-gnu/arch/mips/cavium-octeon/octeon-memcpy.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/cavium-octeon/octeon-memcpy.S	2017-12-20 04:05:01.000000000 -0500
@@ -208,18 +208,18 @@ EXC(	STORE	t2, UNIT(6)(dst),	s_exc_p10u)
 	ADD	src, src, 16*NBYTES
 EXC(	STORE	t3, UNIT(7)(dst),	s_exc_p9u)
 	ADD	dst, dst, 16*NBYTES
-EXC(	LOAD	t0, UNIT(-8)(src),	l_exc_copy)
-EXC(	LOAD	t1, UNIT(-7)(src),	l_exc_copy)
-EXC(	LOAD	t2, UNIT(-6)(src),	l_exc_copy)
-EXC(	LOAD	t3, UNIT(-5)(src),	l_exc_copy)
+EXC(	LOAD	t0, UNIT(-8)(src),	l_exc_copy_rewind16)
+EXC(	LOAD	t1, UNIT(-7)(src),	l_exc_copy_rewind16)
+EXC(	LOAD	t2, UNIT(-6)(src),	l_exc_copy_rewind16)
+EXC(	LOAD	t3, UNIT(-5)(src),	l_exc_copy_rewind16)
 EXC(	STORE	t0, UNIT(-8)(dst),	s_exc_p8u)
 EXC(	STORE	t1, UNIT(-7)(dst),	s_exc_p7u)
 EXC(	STORE	t2, UNIT(-6)(dst),	s_exc_p6u)
 EXC(	STORE	t3, UNIT(-5)(dst),	s_exc_p5u)
-EXC(	LOAD	t0, UNIT(-4)(src),	l_exc_copy)
-EXC(	LOAD	t1, UNIT(-3)(src),	l_exc_copy)
-EXC(	LOAD	t2, UNIT(-2)(src),	l_exc_copy)
-EXC(	LOAD	t3, UNIT(-1)(src),	l_exc_copy)
+EXC(	LOAD	t0, UNIT(-4)(src),	l_exc_copy_rewind16)
+EXC(	LOAD	t1, UNIT(-3)(src),	l_exc_copy_rewind16)
+EXC(	LOAD	t2, UNIT(-2)(src),	l_exc_copy_rewind16)
+EXC(	LOAD	t3, UNIT(-1)(src),	l_exc_copy_rewind16)
 EXC(	STORE	t0, UNIT(-4)(dst),	s_exc_p4u)
 EXC(	STORE	t1, UNIT(-3)(dst),	s_exc_p3u)
 EXC(	STORE	t2, UNIT(-2)(dst),	s_exc_p2u)
@@ -383,6 +383,10 @@ done:
 	 nop
 	END(memcpy)
 
+l_exc_copy_rewind16:
+	/* Rewind src and dst by 16*NBYTES for l_exc_copy */
+	SUB	src, src, 16*NBYTES
+	SUB	dst, dst, 16*NBYTES
 l_exc_copy:
 	/*
 	 * Copy bytes from src until faulting load address (or until a
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/configs/ip22_defconfig linux-libre-4.4.107-gnu/arch/mips/configs/ip22_defconfig
--- linux-libre-4.4-gnu/arch/mips/configs/ip22_defconfig	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/configs/ip22_defconfig	2017-12-20 04:05:01.000000000 -0500
@@ -68,8 +68,8 @@ CONFIG_NETFILTER_NETLINK_QUEUE=m
 CONFIG_NF_CONNTRACK=m
 CONFIG_NF_CONNTRACK_SECMARK=y
 CONFIG_NF_CONNTRACK_EVENTS=y
-CONFIG_NF_CT_PROTO_DCCP=m
-CONFIG_NF_CT_PROTO_UDPLITE=m
+CONFIG_NF_CT_PROTO_DCCP=y
+CONFIG_NF_CT_PROTO_UDPLITE=y
 CONFIG_NF_CONNTRACK_AMANDA=m
 CONFIG_NF_CONNTRACK_FTP=m
 CONFIG_NF_CONNTRACK_H323=m
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/configs/ip27_defconfig linux-libre-4.4.107-gnu/arch/mips/configs/ip27_defconfig
--- linux-libre-4.4-gnu/arch/mips/configs/ip27_defconfig	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/configs/ip27_defconfig	2017-12-20 04:05:01.000000000 -0500
@@ -134,7 +134,7 @@ CONFIG_LIBFC=m
 CONFIG_SCSI_QLOGIC_1280=y
 CONFIG_SCSI_PMCRAID=m
 CONFIG_SCSI_BFA_FC=m
-CONFIG_SCSI_DH=m
+CONFIG_SCSI_DH=y
 CONFIG_SCSI_DH_RDAC=m
 CONFIG_SCSI_DH_HP_SW=m
 CONFIG_SCSI_DH_EMC=m
@@ -206,7 +206,6 @@ CONFIG_MLX4_EN=m
 # CONFIG_MLX4_DEBUG is not set
 CONFIG_TEHUTI=m
 CONFIG_BNX2X=m
-CONFIG_QLGE=m
 CONFIG_SFC=m
 CONFIG_BE2NET=m
 CONFIG_LIBERTAS_THINFIRM=m
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/configs/lemote2f_defconfig linux-libre-4.4.107-gnu/arch/mips/configs/lemote2f_defconfig
--- linux-libre-4.4-gnu/arch/mips/configs/lemote2f_defconfig	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/configs/lemote2f_defconfig	2017-12-20 04:05:01.000000000 -0500
@@ -39,7 +39,7 @@ CONFIG_HIBERNATION=y
 CONFIG_PM_STD_PARTITION="/dev/hda3"
 CONFIG_CPU_FREQ=y
 CONFIG_CPU_FREQ_DEBUG=y
-CONFIG_CPU_FREQ_STAT=m
+CONFIG_CPU_FREQ_STAT=y
 CONFIG_CPU_FREQ_STAT_DETAILS=y
 CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y
 CONFIG_CPU_FREQ_GOV_POWERSAVE=m
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/configs/malta_defconfig linux-libre-4.4.107-gnu/arch/mips/configs/malta_defconfig
--- linux-libre-4.4-gnu/arch/mips/configs/malta_defconfig	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/configs/malta_defconfig	2017-12-20 04:05:01.000000000 -0500
@@ -59,8 +59,8 @@ CONFIG_NETFILTER=y
 CONFIG_NF_CONNTRACK=m
 CONFIG_NF_CONNTRACK_SECMARK=y
 CONFIG_NF_CONNTRACK_EVENTS=y
-CONFIG_NF_CT_PROTO_DCCP=m
-CONFIG_NF_CT_PROTO_UDPLITE=m
+CONFIG_NF_CT_PROTO_DCCP=y
+CONFIG_NF_CT_PROTO_UDPLITE=y
 CONFIG_NF_CONNTRACK_AMANDA=m
 CONFIG_NF_CONNTRACK_FTP=m
 CONFIG_NF_CONNTRACK_H323=m
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/configs/malta_kvm_defconfig linux-libre-4.4.107-gnu/arch/mips/configs/malta_kvm_defconfig
--- linux-libre-4.4-gnu/arch/mips/configs/malta_kvm_defconfig	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/configs/malta_kvm_defconfig	2017-12-20 04:05:01.000000000 -0500
@@ -60,8 +60,8 @@ CONFIG_NETFILTER=y
 CONFIG_NF_CONNTRACK=m
 CONFIG_NF_CONNTRACK_SECMARK=y
 CONFIG_NF_CONNTRACK_EVENTS=y
-CONFIG_NF_CT_PROTO_DCCP=m
-CONFIG_NF_CT_PROTO_UDPLITE=m
+CONFIG_NF_CT_PROTO_DCCP=y
+CONFIG_NF_CT_PROTO_UDPLITE=y
 CONFIG_NF_CONNTRACK_AMANDA=m
 CONFIG_NF_CONNTRACK_FTP=m
 CONFIG_NF_CONNTRACK_H323=m
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/configs/malta_kvm_guest_defconfig linux-libre-4.4.107-gnu/arch/mips/configs/malta_kvm_guest_defconfig
--- linux-libre-4.4-gnu/arch/mips/configs/malta_kvm_guest_defconfig	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/configs/malta_kvm_guest_defconfig	2017-12-20 04:05:01.000000000 -0500
@@ -59,8 +59,8 @@ CONFIG_NETFILTER=y
 CONFIG_NF_CONNTRACK=m
 CONFIG_NF_CONNTRACK_SECMARK=y
 CONFIG_NF_CONNTRACK_EVENTS=y
-CONFIG_NF_CT_PROTO_DCCP=m
-CONFIG_NF_CT_PROTO_UDPLITE=m
+CONFIG_NF_CT_PROTO_DCCP=y
+CONFIG_NF_CT_PROTO_UDPLITE=y
 CONFIG_NF_CONNTRACK_AMANDA=m
 CONFIG_NF_CONNTRACK_FTP=m
 CONFIG_NF_CONNTRACK_H323=m
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/configs/maltaup_xpa_defconfig linux-libre-4.4.107-gnu/arch/mips/configs/maltaup_xpa_defconfig
--- linux-libre-4.4-gnu/arch/mips/configs/maltaup_xpa_defconfig	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/configs/maltaup_xpa_defconfig	2017-12-20 04:05:01.000000000 -0500
@@ -61,8 +61,8 @@ CONFIG_NETFILTER=y
 CONFIG_NF_CONNTRACK=m
 CONFIG_NF_CONNTRACK_SECMARK=y
 CONFIG_NF_CONNTRACK_EVENTS=y
-CONFIG_NF_CT_PROTO_DCCP=m
-CONFIG_NF_CT_PROTO_UDPLITE=m
+CONFIG_NF_CT_PROTO_DCCP=y
+CONFIG_NF_CT_PROTO_UDPLITE=y
 CONFIG_NF_CONNTRACK_AMANDA=m
 CONFIG_NF_CONNTRACK_FTP=m
 CONFIG_NF_CONNTRACK_H323=m
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/configs/nlm_xlp_defconfig linux-libre-4.4.107-gnu/arch/mips/configs/nlm_xlp_defconfig
--- linux-libre-4.4-gnu/arch/mips/configs/nlm_xlp_defconfig	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/configs/nlm_xlp_defconfig	2017-12-20 04:05:01.000000000 -0500
@@ -111,7 +111,7 @@ CONFIG_NETFILTER=y
 CONFIG_NF_CONNTRACK=m
 CONFIG_NF_CONNTRACK_SECMARK=y
 CONFIG_NF_CONNTRACK_EVENTS=y
-CONFIG_NF_CT_PROTO_UDPLITE=m
+CONFIG_NF_CT_PROTO_UDPLITE=y
 CONFIG_NF_CONNTRACK_AMANDA=m
 CONFIG_NF_CONNTRACK_FTP=m
 CONFIG_NF_CONNTRACK_H323=m
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/configs/nlm_xlr_defconfig linux-libre-4.4.107-gnu/arch/mips/configs/nlm_xlr_defconfig
--- linux-libre-4.4-gnu/arch/mips/configs/nlm_xlr_defconfig	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/configs/nlm_xlr_defconfig	2017-12-20 04:05:01.000000000 -0500
@@ -91,7 +91,7 @@ CONFIG_NETFILTER=y
 CONFIG_NF_CONNTRACK=m
 CONFIG_NF_CONNTRACK_SECMARK=y
 CONFIG_NF_CONNTRACK_EVENTS=y
-CONFIG_NF_CT_PROTO_UDPLITE=m
+CONFIG_NF_CT_PROTO_UDPLITE=y
 CONFIG_NF_CONNTRACK_AMANDA=m
 CONFIG_NF_CONNTRACK_FTP=m
 CONFIG_NF_CONNTRACK_H323=m
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/dec/int-handler.S linux-libre-4.4.107-gnu/arch/mips/dec/int-handler.S
--- linux-libre-4.4-gnu/arch/mips/dec/int-handler.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/dec/int-handler.S	2017-12-20 04:05:01.000000000 -0500
@@ -146,7 +146,25 @@
 		/*
 		 * Find irq with highest priority
 		 */
-		 PTR_LA	t1,cpu_mask_nr_tbl
+		# open coded PTR_LA t1, cpu_mask_nr_tbl
+#if (_MIPS_SZPTR == 32)
+		# open coded la t1, cpu_mask_nr_tbl
+		lui	t1, %hi(cpu_mask_nr_tbl)
+		addiu	t1, %lo(cpu_mask_nr_tbl)
+
+#endif
+#if (_MIPS_SZPTR == 64)
+		# open coded dla t1, cpu_mask_nr_tbl
+		.set	push
+		.set	noat
+		lui	t1, %highest(cpu_mask_nr_tbl)
+		lui	AT, %hi(cpu_mask_nr_tbl)
+		daddiu	t1, t1, %higher(cpu_mask_nr_tbl)
+		daddiu	AT, AT, %lo(cpu_mask_nr_tbl)
+		dsll	t1, 32
+		daddu	t1, t1, AT
+		.set	pop
+#endif
 1:		lw	t2,(t1)
 		nop
 		and	t2,t0
@@ -195,7 +213,25 @@
 		/*
 		 * Find irq with highest priority
 		 */
-		 PTR_LA	t1,asic_mask_nr_tbl
+		# open coded PTR_LA t1,asic_mask_nr_tbl
+#if (_MIPS_SZPTR == 32)
+		# open coded la t1, asic_mask_nr_tbl
+		lui	t1, %hi(asic_mask_nr_tbl)
+		addiu	t1, %lo(asic_mask_nr_tbl)
+
+#endif
+#if (_MIPS_SZPTR == 64)
+		# open coded dla t1, asic_mask_nr_tbl
+		.set	push
+		.set	noat
+		lui	t1, %highest(asic_mask_nr_tbl)
+		lui	AT, %hi(asic_mask_nr_tbl)
+		daddiu	t1, t1, %higher(asic_mask_nr_tbl)
+		daddiu	AT, AT, %lo(asic_mask_nr_tbl)
+		dsll	t1, 32
+		daddu	t1, t1, AT
+		.set	pop
+#endif
 2:		lw	t2,(t1)
 		nop
 		and	t2,t0
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/include/asm/asm.h linux-libre-4.4.107-gnu/arch/mips/include/asm/asm.h
--- linux-libre-4.4-gnu/arch/mips/include/asm/asm.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/include/asm/asm.h	2017-12-20 04:05:01.000000000 -0500
@@ -54,7 +54,8 @@
 		.align	2;				\
 		.type	symbol, @function;		\
 		.ent	symbol, 0;			\
-symbol:		.frame	sp, 0, ra
+symbol:		.frame	sp, 0, ra;			\
+		.insn
 
 /*
  * NESTED - declare nested routine entry point
@@ -63,8 +64,9 @@ symbol:		.frame	sp, 0, ra
 		.globl	symbol;				\
 		.align	2;				\
 		.type	symbol, @function;		\
-		.ent	symbol, 0;			 \
-symbol:		.frame	sp, framesize, rpc
+		.ent	symbol, 0;			\
+symbol:		.frame	sp, framesize, rpc;		\
+		.insn
 
 /*
  * END - mark end of function
@@ -86,7 +88,7 @@ symbol:
 #define FEXPORT(symbol)					\
 		.globl	symbol;				\
 		.type	symbol, @function;		\
-symbol:
+symbol:		.insn
 
 /*
  * ABS - export absolute symbol
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/include/asm/asmmacro.h linux-libre-4.4.107-gnu/arch/mips/include/asm/asmmacro.h
--- linux-libre-4.4-gnu/arch/mips/include/asm/asmmacro.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/include/asm/asmmacro.h	2017-12-20 04:05:01.000000000 -0500
@@ -135,6 +135,7 @@
 	ldc1	$f28, THREAD_FPR28(\thread)
 	ldc1	$f30, THREAD_FPR30(\thread)
 	ctc1	\tmp, fcr31
+	.set	pop
 	.endm
 
 	.macro	fpu_restore_16odd thread
@@ -298,21 +299,21 @@
 	.set	pop
 	.endm
 
-	.macro	copy_u_w	ws, n
+	.macro	copy_s_w	ws, n
 	.set	push
 	.set	mips32r2
 	.set	fp=64
 	.set	msa
-	copy_u.w $1, $w\ws[\n]
+	copy_s.w $1, $w\ws[\n]
 	.set	pop
 	.endm
 
-	.macro	copy_u_d	ws, n
+	.macro	copy_s_d	ws, n
 	.set	push
 	.set	mips64r2
 	.set	fp=64
 	.set	msa
-	copy_u.d $1, $w\ws[\n]
+	copy_s.d $1, $w\ws[\n]
 	.set	pop
 	.endm
 
@@ -346,8 +347,8 @@
 #define STH_MSA_INSN		0x5800081f
 #define STW_MSA_INSN		0x5800082f
 #define STD_MSA_INSN		0x5800083f
-#define COPY_UW_MSA_INSN	0x58f00056
-#define COPY_UD_MSA_INSN	0x58f80056
+#define COPY_SW_MSA_INSN	0x58b00056
+#define COPY_SD_MSA_INSN	0x58b80056
 #define INSERT_W_MSA_INSN	0x59300816
 #define INSERT_D_MSA_INSN	0x59380816
 #else
@@ -361,8 +362,8 @@
 #define STH_MSA_INSN		0x78000825
 #define STW_MSA_INSN		0x78000826
 #define STD_MSA_INSN		0x78000827
-#define COPY_UW_MSA_INSN	0x78f00059
-#define COPY_UD_MSA_INSN	0x78f80059
+#define COPY_SW_MSA_INSN	0x78b00059
+#define COPY_SD_MSA_INSN	0x78b80059
 #define INSERT_W_MSA_INSN	0x79300819
 #define INSERT_D_MSA_INSN	0x79380819
 #endif
@@ -393,7 +394,7 @@
 	.set	push
 	.set	noat
 	SET_HARDFLOAT
-	addu	$1, \base, \off
+	PTR_ADDU $1, \base, \off
 	.word	LDB_MSA_INSN | (\wd << 6)
 	.set	pop
 	.endm
@@ -402,7 +403,7 @@
 	.set	push
 	.set	noat
 	SET_HARDFLOAT
-	addu	$1, \base, \off
+	PTR_ADDU $1, \base, \off
 	.word	LDH_MSA_INSN | (\wd << 6)
 	.set	pop
 	.endm
@@ -411,7 +412,7 @@
 	.set	push
 	.set	noat
 	SET_HARDFLOAT
-	addu	$1, \base, \off
+	PTR_ADDU $1, \base, \off
 	.word	LDW_MSA_INSN | (\wd << 6)
 	.set	pop
 	.endm
@@ -420,7 +421,7 @@
 	.set	push
 	.set	noat
 	SET_HARDFLOAT
-	addu	$1, \base, \off
+	PTR_ADDU $1, \base, \off
 	.word	LDD_MSA_INSN | (\wd << 6)
 	.set	pop
 	.endm
@@ -429,7 +430,7 @@
 	.set	push
 	.set	noat
 	SET_HARDFLOAT
-	addu	$1, \base, \off
+	PTR_ADDU $1, \base, \off
 	.word	STB_MSA_INSN | (\wd << 6)
 	.set	pop
 	.endm
@@ -438,7 +439,7 @@
 	.set	push
 	.set	noat
 	SET_HARDFLOAT
-	addu	$1, \base, \off
+	PTR_ADDU $1, \base, \off
 	.word	STH_MSA_INSN | (\wd << 6)
 	.set	pop
 	.endm
@@ -447,7 +448,7 @@
 	.set	push
 	.set	noat
 	SET_HARDFLOAT
-	addu	$1, \base, \off
+	PTR_ADDU $1, \base, \off
 	.word	STW_MSA_INSN | (\wd << 6)
 	.set	pop
 	.endm
@@ -456,26 +457,26 @@
 	.set	push
 	.set	noat
 	SET_HARDFLOAT
-	addu	$1, \base, \off
+	PTR_ADDU $1, \base, \off
 	.word	STD_MSA_INSN | (\wd << 6)
 	.set	pop
 	.endm
 
-	.macro	copy_u_w	ws, n
+	.macro	copy_s_w	ws, n
 	.set	push
 	.set	noat
 	SET_HARDFLOAT
 	.insn
-	.word	COPY_UW_MSA_INSN | (\n << 16) | (\ws << 11)
+	.word	COPY_SW_MSA_INSN | (\n << 16) | (\ws << 11)
 	.set	pop
 	.endm
 
-	.macro	copy_u_d	ws, n
+	.macro	copy_s_d	ws, n
 	.set	push
 	.set	noat
 	SET_HARDFLOAT
 	.insn
-	.word	COPY_UD_MSA_INSN | (\n << 16) | (\ws << 11)
+	.word	COPY_SD_MSA_INSN | (\n << 16) | (\ws << 11)
 	.set	pop
 	.endm
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/include/asm/branch.h linux-libre-4.4.107-gnu/arch/mips/include/asm/branch.h
--- linux-libre-4.4-gnu/arch/mips/include/asm/branch.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/include/asm/branch.h	2017-12-20 04:05:01.000000000 -0500
@@ -74,10 +74,7 @@ static inline int compute_return_epc(str
 			return __microMIPS_compute_return_epc(regs);
 		if (cpu_has_mips16)
 			return __MIPS16e_compute_return_epc(regs);
-		return regs->cp0_epc;
-	}
-
-	if (!delay_slot(regs)) {
+	} else if (!delay_slot(regs)) {
 		regs->cp0_epc += 4;
 		return 0;
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/include/asm/cacheflush.h linux-libre-4.4.107-gnu/arch/mips/include/asm/cacheflush.h
--- linux-libre-4.4-gnu/arch/mips/include/asm/cacheflush.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/include/asm/cacheflush.h	2017-12-20 04:05:01.000000000 -0500
@@ -51,7 +51,6 @@ extern void (*flush_cache_range)(struct
 	unsigned long start, unsigned long end);
 extern void (*flush_cache_page)(struct vm_area_struct *vma, unsigned long page, unsigned long pfn);
 extern void __flush_dcache_page(struct page *page);
-extern void __flush_icache_page(struct vm_area_struct *vma, struct page *page);
 
 #define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
 static inline void flush_dcache_page(struct page *page)
@@ -77,11 +76,6 @@ static inline void flush_anon_page(struc
 static inline void flush_icache_page(struct vm_area_struct *vma,
 	struct page *page)
 {
-	if (!cpu_has_ic_fills_f_dc && (vma->vm_flags & VM_EXEC) &&
-	    Page_dcache_dirty(page)) {
-		__flush_icache_page(vma, page);
-		ClearPageDcacheDirty(page);
-	}
 }
 
 extern void (*flush_icache_range)(unsigned long start, unsigned long end);
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/include/asm/checksum.h linux-libre-4.4.107-gnu/arch/mips/include/asm/checksum.h
--- linux-libre-4.4-gnu/arch/mips/include/asm/checksum.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/include/asm/checksum.h	2017-12-20 04:05:01.000000000 -0500
@@ -186,7 +186,9 @@ static inline __wsum csum_tcpudp_nofold(
 	"	daddu	%0, %4		\n"
 	"	dsll32	$1, %0, 0	\n"
 	"	daddu	%0, $1		\n"
+	"	sltu	$1, %0, $1	\n"
 	"	dsra32	%0, %0, 0	\n"
+	"	addu	%0, $1		\n"
 #endif
 	"	.set	pop"
 	: "=r" (sum)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/include/asm/irq.h linux-libre-4.4.107-gnu/arch/mips/include/asm/irq.h
--- linux-libre-4.4-gnu/arch/mips/include/asm/irq.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/include/asm/irq.h	2017-12-20 04:05:01.000000000 -0500
@@ -17,6 +17,33 @@
 
 #include <irq.h>
 
+#define IRQ_STACK_SIZE			THREAD_SIZE
+#define IRQ_STACK_START			(IRQ_STACK_SIZE - 16)
+
+extern void *irq_stack[NR_CPUS];
+
+/*
+ * The highest address on the IRQ stack contains a dummy frame put down in
+ * genex.S (handle_int & except_vec_vi_handler) which is structured as follows:
+ *
+ *   top ------------
+ *       | task sp  | <- irq_stack[cpu] + IRQ_STACK_START
+ *       ------------
+ *       |          | <- First frame of IRQ context
+ *       ------------
+ *
+ * task sp holds a copy of the task stack pointer where the struct pt_regs
+ * from exception entry can be found.
+ */
+
+static inline bool on_irq_stack(int cpu, unsigned long sp)
+{
+	unsigned long low = (unsigned long)irq_stack[cpu];
+	unsigned long high = low + IRQ_STACK_SIZE;
+
+	return (low <= sp && sp <= high);
+}
+
 #ifdef CONFIG_I8259
 static inline int irq_canonicalize(int irq)
 {
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/include/asm/kvm_host.h linux-libre-4.4.107-gnu/arch/mips/include/asm/kvm_host.h
--- linux-libre-4.4-gnu/arch/mips/include/asm/kvm_host.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/include/asm/kvm_host.h	2017-12-20 04:05:01.000000000 -0500
@@ -372,6 +372,7 @@ struct kvm_mips_tlb {
 #define KVM_MIPS_GUEST_TLB_SIZE	64
 struct kvm_vcpu_arch {
 	void *host_ebase, *guest_ebase;
+	int (*vcpu_run)(struct kvm_run *run, struct kvm_vcpu *vcpu);
 	unsigned long host_stack;
 	unsigned long host_gp;
 
@@ -399,7 +400,10 @@ struct kvm_vcpu_arch {
 	/* Host KSEG0 address of the EI/DI offset */
 	void *kseg0_commpage;
 
-	u32 io_gpr;		/* GPR used as IO source/target */
+	/* Resume PC after MMIO completion */
+	unsigned long io_pc;
+	/* GPR used as IO source/target */
+	u32 io_gpr;
 
 	struct hrtimer comparecount_timer;
 	/* Count timer control KVM register */
@@ -421,8 +425,6 @@ struct kvm_vcpu_arch {
 	/* Bitmask of pending exceptions to be cleared */
 	unsigned long pending_exceptions_clr;
 
-	unsigned long pending_load_cause;
-
 	/* Save/Restore the entryhi register when are are preempted/scheduled back in */
 	unsigned long preempt_entryhi;
 
@@ -784,7 +786,7 @@ extern enum emulation_result kvm_mips_co
 
 uint32_t kvm_mips_read_count(struct kvm_vcpu *vcpu);
 void kvm_mips_write_count(struct kvm_vcpu *vcpu, uint32_t count);
-void kvm_mips_write_compare(struct kvm_vcpu *vcpu, uint32_t compare);
+void kvm_mips_write_compare(struct kvm_vcpu *vcpu, uint32_t compare, bool ack);
 void kvm_mips_init_count(struct kvm_vcpu *vcpu);
 int kvm_mips_set_count_ctl(struct kvm_vcpu *vcpu, s64 count_ctl);
 int kvm_mips_set_count_resume(struct kvm_vcpu *vcpu, s64 count_resume);
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/include/asm/mach-paravirt/kernel-entry-init.h linux-libre-4.4.107-gnu/arch/mips/include/asm/mach-paravirt/kernel-entry-init.h
--- linux-libre-4.4-gnu/arch/mips/include/asm/mach-paravirt/kernel-entry-init.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/include/asm/mach-paravirt/kernel-entry-init.h	2017-12-20 04:05:01.000000000 -0500
@@ -11,11 +11,13 @@
 #define CP0_EBASE $15, 1
 
 	.macro  kernel_entry_setup
+#ifdef CONFIG_SMP
 	mfc0	t0, CP0_EBASE
 	andi	t0, t0, 0x3ff		# CPUNum
 	beqz	t0, 1f
 	# CPUs other than zero goto smp_bootstrap
 	j	smp_bootstrap
+#endif /* CONFIG_SMP */
 
 1:
 	.endm
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/include/asm/mips-cm.h linux-libre-4.4.107-gnu/arch/mips/include/asm/mips-cm.h
--- linux-libre-4.4-gnu/arch/mips/include/asm/mips-cm.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/include/asm/mips-cm.h	2017-12-20 04:05:01.000000000 -0500
@@ -238,8 +238,8 @@ BUILD_CM_Cx_R_(tcid_8_priority,	0x80)
 #define CM_GCR_BASE_GCRBASE_MSK			(_ULCAST_(0x1ffff) << 15)
 #define CM_GCR_BASE_CMDEFTGT_SHF		0
 #define CM_GCR_BASE_CMDEFTGT_MSK		(_ULCAST_(0x3) << 0)
-#define  CM_GCR_BASE_CMDEFTGT_DISABLED		0
-#define  CM_GCR_BASE_CMDEFTGT_MEM		1
+#define  CM_GCR_BASE_CMDEFTGT_MEM		0
+#define  CM_GCR_BASE_CMDEFTGT_RESERVED		1
 #define  CM_GCR_BASE_CMDEFTGT_IOCU0		2
 #define  CM_GCR_BASE_CMDEFTGT_IOCU1		3
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/include/asm/msa.h linux-libre-4.4.107-gnu/arch/mips/include/asm/msa.h
--- linux-libre-4.4-gnu/arch/mips/include/asm/msa.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/include/asm/msa.h	2017-12-20 04:05:01.000000000 -0500
@@ -147,6 +147,19 @@ static inline void restore_msa(struct ta
 		_restore_msa(t);
 }
 
+static inline void init_msa_upper(void)
+{
+	/*
+	 * Check cpu_has_msa only if it's a constant. This will allow the
+	 * compiler to optimise out code for CPUs without MSA without adding
+	 * an extra redundant check for CPUs with MSA.
+	 */
+	if (__builtin_constant_p(cpu_has_msa) && !cpu_has_msa)
+		return;
+
+	_init_msa_upper();
+}
+
 #ifdef TOOLCHAIN_SUPPORTS_MSA
 
 #define __BUILD_MSA_CTL_REG(name, cs)				\
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/include/asm/page.h linux-libre-4.4.107-gnu/arch/mips/include/asm/page.h
--- linux-libre-4.4-gnu/arch/mips/include/asm/page.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/include/asm/page.h	2017-12-20 04:05:01.000000000 -0500
@@ -33,7 +33,7 @@
 #define PAGE_SHIFT	16
 #endif
 #define PAGE_SIZE	(_AC(1,UL) << PAGE_SHIFT)
-#define PAGE_MASK	(~(PAGE_SIZE - 1))
+#define PAGE_MASK	(~((1 << PAGE_SHIFT) - 1))
 
 /*
  * This is used for calculating the real page sizes
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/include/asm/pgtable.h linux-libre-4.4.107-gnu/arch/mips/include/asm/pgtable.h
--- linux-libre-4.4-gnu/arch/mips/include/asm/pgtable.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/include/asm/pgtable.h	2017-12-20 04:05:01.000000000 -0500
@@ -127,10 +127,14 @@ do {									\
 	}								\
 } while(0)
 
+static inline void set_pte_at(struct mm_struct *mm, unsigned long addr,
+			      pte_t *ptep, pte_t pteval);
+
 #if defined(CONFIG_PHYS_ADDR_T_64BIT) && defined(CONFIG_CPU_MIPS32)
 
 #define pte_none(pte)		(!(((pte).pte_high) & ~_PAGE_GLOBAL))
 #define pte_present(pte)	((pte).pte_low & _PAGE_PRESENT)
+#define pte_no_exec(pte)	((pte).pte_low & _PAGE_NO_EXEC)
 
 static inline void set_pte(pte_t *ptep, pte_t pte)
 {
@@ -148,7 +152,6 @@ static inline void set_pte(pte_t *ptep,
 			buddy->pte_high |= _PAGE_GLOBAL;
 	}
 }
-#define set_pte_at(mm, addr, ptep, pteval) set_pte(ptep, pteval)
 
 static inline void pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
 {
@@ -166,6 +169,7 @@ static inline void pte_clear(struct mm_s
 
 #define pte_none(pte)		(!(pte_val(pte) & ~_PAGE_GLOBAL))
 #define pte_present(pte)	(pte_val(pte) & _PAGE_PRESENT)
+#define pte_no_exec(pte)	(pte_val(pte) & _PAGE_NO_EXEC)
 
 /*
  * Certain architectures need to do special things when pte's
@@ -218,7 +222,6 @@ static inline void set_pte(pte_t *ptep,
 	}
 #endif
 }
-#define set_pte_at(mm, addr, ptep, pteval) set_pte(ptep, pteval)
 
 static inline void pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
 {
@@ -234,6 +237,22 @@ static inline void pte_clear(struct mm_s
 }
 #endif
 
+static inline void set_pte_at(struct mm_struct *mm, unsigned long addr,
+			      pte_t *ptep, pte_t pteval)
+{
+	extern void __update_cache(unsigned long address, pte_t pte);
+
+	if (!pte_present(pteval))
+		goto cache_sync_done;
+
+	if (pte_present(*ptep) && (pte_pfn(*ptep) == pte_pfn(pteval)))
+		goto cache_sync_done;
+
+	__update_cache(addr, pteval);
+cache_sync_done:
+	set_pte(ptep, pteval);
+}
+
 /*
  * (pmds are folded into puds so this doesn't get actually called,
  * but the define is needed for a generic inline function.)
@@ -353,7 +372,7 @@ static inline pte_t pte_mkdirty(pte_t pt
 static inline pte_t pte_mkyoung(pte_t pte)
 {
 	pte_val(pte) |= _PAGE_ACCESSED;
-#ifdef CONFIG_CPU_MIPSR2
+#if defined(CONFIG_CPU_MIPSR2) || defined(CONFIG_CPU_MIPSR6)
 	if (!(pte_val(pte) & _PAGE_NO_READ))
 		pte_val(pte) |= _PAGE_SILENT_READ;
 	else
@@ -430,15 +449,12 @@ static inline pte_t pte_modify(pte_t pte
 
 extern void __update_tlb(struct vm_area_struct *vma, unsigned long address,
 	pte_t pte);
-extern void __update_cache(struct vm_area_struct *vma, unsigned long address,
-	pte_t pte);
 
 static inline void update_mmu_cache(struct vm_area_struct *vma,
 	unsigned long address, pte_t *ptep)
 {
 	pte_t pte = *ptep;
 	__update_tlb(vma, address, pte);
-	__update_cache(vma, address, pte);
 }
 
 static inline void update_mmu_cache_pmd(struct vm_area_struct *vma,
@@ -560,7 +576,7 @@ static inline pmd_t pmd_mkyoung(pmd_t pm
 {
 	pmd_val(pmd) |= _PAGE_ACCESSED;
 
-#ifdef CONFIG_CPU_MIPSR2
+#if defined(CONFIG_CPU_MIPSR2) || defined(CONFIG_CPU_MIPSR6)
 	if (!(pmd_val(pmd) & _PAGE_NO_READ))
 		pmd_val(pmd) |= _PAGE_SILENT_READ;
 	else
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/include/asm/processor.h linux-libre-4.4.107-gnu/arch/mips/include/asm/processor.h
--- linux-libre-4.4-gnu/arch/mips/include/asm/processor.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/include/asm/processor.h	2017-12-20 04:05:01.000000000 -0500
@@ -45,7 +45,7 @@ extern unsigned int vced_count, vcei_cou
  * User space process size: 2GB. This is hardcoded into a few places,
  * so don't change it unless you know what you are doing.
  */
-#define TASK_SIZE	0x7fff8000UL
+#define TASK_SIZE	0x80000000UL
 #endif
 
 #define STACK_TOP_MAX	TASK_SIZE
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/include/asm/ptrace.h linux-libre-4.4.107-gnu/arch/mips/include/asm/ptrace.h
--- linux-libre-4.4-gnu/arch/mips/include/asm/ptrace.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/include/asm/ptrace.h	2017-12-20 04:05:01.000000000 -0500
@@ -152,7 +152,7 @@ static inline int is_syscall_success(str
 
 static inline long regs_return_value(struct pt_regs *regs)
 {
-	if (is_syscall_success(regs))
+	if (is_syscall_success(regs) || !user_mode(regs))
 		return regs->regs[2];
 	else
 		return -regs->regs[2];
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/include/asm/spinlock.h linux-libre-4.4.107-gnu/arch/mips/include/asm/spinlock.h
--- linux-libre-4.4-gnu/arch/mips/include/asm/spinlock.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/include/asm/spinlock.h	2017-12-20 04:05:01.000000000 -0500
@@ -112,7 +112,7 @@ static inline void arch_spin_lock(arch_s
 		"	andi	%[ticket], %[ticket], 0xffff		\n"
 		"	bne	%[ticket], %[my_ticket], 4f		\n"
 		"	 subu	%[ticket], %[my_ticket], %[ticket]	\n"
-		"2:							\n"
+		"2:	.insn						\n"
 		"	.subsection 2					\n"
 		"4:	andi	%[ticket], %[ticket], 0xffff		\n"
 		"	sll	%[ticket], 5				\n"
@@ -187,7 +187,7 @@ static inline unsigned int arch_spin_try
 		"	sc	%[ticket], %[ticket_ptr]		\n"
 		"	beqz	%[ticket], 1b				\n"
 		"	 li	%[ticket], 1				\n"
-		"2:							\n"
+		"2:	.insn						\n"
 		"	.subsection 2					\n"
 		"3:	b	2b					\n"
 		"	 li	%[ticket], 0				\n"
@@ -367,7 +367,7 @@ static inline int arch_read_trylock(arch
 		"	.set	reorder					\n"
 		__WEAK_LLSC_MB
 		"	li	%2, 1					\n"
-		"2:							\n"
+		"2:	.insn						\n"
 		: "=" GCC_OFF_SMALL_ASM() (rw->lock), "=&r" (tmp), "=&r" (ret)
 		: GCC_OFF_SMALL_ASM() (rw->lock)
 		: "memory");
@@ -407,7 +407,7 @@ static inline int arch_write_trylock(arc
 			"	lui	%1, 0x8000			\n"
 			"	sc	%1, %0				\n"
 			"	li	%2, 1				\n"
-			"2:						\n"
+			"2:	.insn					\n"
 			: "=" GCC_OFF_SMALL_ASM() (rw->lock), "=&r" (tmp),
 			  "=&r" (ret)
 			: GCC_OFF_SMALL_ASM() (rw->lock)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/include/asm/stackframe.h linux-libre-4.4.107-gnu/arch/mips/include/asm/stackframe.h
--- linux-libre-4.4-gnu/arch/mips/include/asm/stackframe.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/include/asm/stackframe.h	2017-12-20 04:05:01.000000000 -0500
@@ -216,12 +216,19 @@
 		LONG_S	$25, PT_R25(sp)
 		LONG_S	$28, PT_R28(sp)
 		LONG_S	$31, PT_R31(sp)
+
+		/* Set thread_info if we're coming from user mode */
+		mfc0	k0, CP0_STATUS
+		sll	k0, 3		/* extract cu0 bit */
+		bltz	k0, 9f
+
 		ori	$28, sp, _THREAD_MASK
 		xori	$28, _THREAD_MASK
 #ifdef CONFIG_CPU_CAVIUM_OCTEON
 		.set    mips64
 		pref    0, 0($28)       /* Prefetch the current pointer */
 #endif
+9:
 		.set	pop
 		.endm
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/include/asm/switch_to.h linux-libre-4.4.107-gnu/arch/mips/include/asm/switch_to.h
--- linux-libre-4.4-gnu/arch/mips/include/asm/switch_to.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/include/asm/switch_to.h	2017-12-20 04:05:01.000000000 -0500
@@ -105,7 +105,7 @@ do {									\
 	__clear_software_ll_bit();					\
 	if (cpu_has_userlocal)						\
 		write_c0_userlocal(task_thread_info(next)->tp_value);	\
-	__restore_watch();						\
+	__restore_watch(next);						\
 	(last) = resume(prev, next, task_thread_info(next));		\
 } while (0)
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/include/asm/syscall.h linux-libre-4.4.107-gnu/arch/mips/include/asm/syscall.h
--- linux-libre-4.4-gnu/arch/mips/include/asm/syscall.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/include/asm/syscall.h	2017-12-20 04:05:01.000000000 -0500
@@ -101,10 +101,8 @@ static inline void syscall_get_arguments
 	/* O32 ABI syscall() - Either 64-bit with O32 or 32-bit */
 	if ((config_enabled(CONFIG_32BIT) ||
 	    test_tsk_thread_flag(task, TIF_32BIT_REGS)) &&
-	    (regs->regs[2] == __NR_syscall)) {
+	    (regs->regs[2] == __NR_syscall))
 		i++;
-		n++;
-	}
 
 	while (n--)
 		ret |= mips_get_syscall_arg(args++, task, regs, i++);
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/include/asm/uaccess.h linux-libre-4.4.107-gnu/arch/mips/include/asm/uaccess.h
--- linux-libre-4.4-gnu/arch/mips/include/asm/uaccess.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/include/asm/uaccess.h	2017-12-20 04:05:01.000000000 -0500
@@ -14,6 +14,7 @@
 #include <linux/kernel.h>
 #include <linux/errno.h>
 #include <linux/thread_info.h>
+#include <linux/string.h>
 #include <asm/asm-eva.h>
 
 /*
@@ -1170,6 +1171,8 @@ extern size_t __copy_in_user_eva(void *_
 			__cu_len = __invoke_copy_from_user(__cu_to,	\
 							   __cu_from,	\
 							   __cu_len);   \
+		} else {						\
+			memset(__cu_to, 0, __cu_len);			\
 		}							\
 	}								\
 	__cu_len;							\
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/include/asm/uprobes.h linux-libre-4.4.107-gnu/arch/mips/include/asm/uprobes.h
--- linux-libre-4.4-gnu/arch/mips/include/asm/uprobes.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/include/asm/uprobes.h	2017-12-20 04:05:01.000000000 -0500
@@ -36,7 +36,6 @@ struct arch_uprobe {
 	unsigned long	resume_epc;
 	u32	insn[2];
 	u32	ixol[2];
-	union	mips_instruction orig_inst[MAX_UINSN_BYTES / 4];
 };
 
 struct arch_uprobe_task {
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/include/asm/watch.h linux-libre-4.4.107-gnu/arch/mips/include/asm/watch.h
--- linux-libre-4.4-gnu/arch/mips/include/asm/watch.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/include/asm/watch.h	2017-12-20 04:05:01.000000000 -0500
@@ -12,21 +12,21 @@
 
 #include <asm/mipsregs.h>
 
-void mips_install_watch_registers(void);
+void mips_install_watch_registers(struct task_struct *t);
 void mips_read_watch_registers(void);
 void mips_clear_watch_registers(void);
 void mips_probe_watch_registers(struct cpuinfo_mips *c);
 
 #ifdef CONFIG_HARDWARE_WATCHPOINTS
-#define __restore_watch() do {						\
+#define __restore_watch(task) do {					\
 	if (unlikely(test_bit(TIF_LOAD_WATCH,				\
-			      &current_thread_info()->flags))) {	\
-		mips_install_watch_registers();				\
+			      &task_thread_info(task)->flags))) {	\
+		mips_install_watch_registers(task);			\
 	}								\
 } while (0)
 
 #else
-#define __restore_watch() do {} while (0)
+#define __restore_watch(task) do {} while (0)
 #endif
 
 #endif /* _ASM_WATCH_H */
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/include/uapi/asm/siginfo.h linux-libre-4.4.107-gnu/arch/mips/include/uapi/asm/siginfo.h
--- linux-libre-4.4-gnu/arch/mips/include/uapi/asm/siginfo.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/include/uapi/asm/siginfo.h	2017-12-20 04:05:01.000000000 -0500
@@ -28,7 +28,7 @@
 
 #define __ARCH_SIGSYS
 
-#include <uapi/asm-generic/siginfo.h>
+#include <asm-generic/siginfo.h>
 
 /* We can't use generic siginfo_t, because our si_code and si_errno are swapped */
 typedef struct siginfo {
@@ -42,13 +42,13 @@ typedef struct siginfo {
 
 		/* kill() */
 		struct {
-			pid_t _pid;		/* sender's pid */
+			__kernel_pid_t _pid;	/* sender's pid */
 			__ARCH_SI_UID_T _uid;	/* sender's uid */
 		} _kill;
 
 		/* POSIX.1b timers */
 		struct {
-			timer_t _tid;		/* timer id */
+			__kernel_timer_t _tid;	/* timer id */
 			int _overrun;		/* overrun count */
 			char _pad[sizeof( __ARCH_SI_UID_T) - sizeof(int)];
 			sigval_t _sigval;	/* same as below */
@@ -57,26 +57,26 @@ typedef struct siginfo {
 
 		/* POSIX.1b signals */
 		struct {
-			pid_t _pid;		/* sender's pid */
+			__kernel_pid_t _pid;	/* sender's pid */
 			__ARCH_SI_UID_T _uid;	/* sender's uid */
 			sigval_t _sigval;
 		} _rt;
 
 		/* SIGCHLD */
 		struct {
-			pid_t _pid;		/* which child */
+			__kernel_pid_t _pid;	/* which child */
 			__ARCH_SI_UID_T _uid;	/* sender's uid */
 			int _status;		/* exit code */
-			clock_t _utime;
-			clock_t _stime;
+			__kernel_clock_t _utime;
+			__kernel_clock_t _stime;
 		} _sigchld;
 
 		/* IRIX SIGCHLD */
 		struct {
-			pid_t _pid;		/* which child */
-			clock_t _utime;
+			__kernel_pid_t _pid;	/* which child */
+			__kernel_clock_t _utime;
 			int _status;		/* exit code */
-			clock_t _stime;
+			__kernel_clock_t _stime;
 		} _irix_sigchld;
 
 		/* SIGILL, SIGFPE, SIGSEGV, SIGBUS */
@@ -118,6 +118,4 @@ typedef struct siginfo {
 #define SI_TIMER __SI_CODE(__SI_TIMER, -3) /* sent by timer expiration */
 #define SI_MESGQ __SI_CODE(__SI_MESGQ, -4) /* sent by real time mesq state change */
 
-#include <asm-generic/siginfo.h>
-
 #endif /* _UAPI_ASM_SIGINFO_H */
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/Kconfig linux-libre-4.4.107-gnu/arch/mips/Kconfig
--- linux-libre-4.4-gnu/arch/mips/Kconfig	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/Kconfig	2017-12-20 04:05:01.000000000 -0500
@@ -9,6 +9,7 @@ config MIPS
 	select HAVE_CONTEXT_TRACKING
 	select HAVE_GENERIC_DMA_COHERENT
 	select HAVE_IDE
+	select HAVE_IRQ_EXIT_ON_IRQ_STACK
 	select HAVE_OPROFILE
 	select HAVE_PERF_EVENTS
 	select PERF_USE_VMALLOC
@@ -1463,7 +1464,7 @@ config CPU_MIPS64_R6
 	select CPU_SUPPORTS_HIGHMEM
 	select CPU_SUPPORTS_MSA
 	select GENERIC_CSUM
-	select MIPS_O32_FP64_SUPPORT if MIPS32_O32
+	select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
 	help
 	  Choose this option to build a kernel for release 6 or later of the
 	  MIPS64 architecture.  New MIPS processors, starting with the Warrior
@@ -2155,7 +2156,7 @@ config MIPS_MT_SMP
 	select CPU_MIPSR2_IRQ_VI
 	select CPU_MIPSR2_IRQ_EI
 	select SYNC_R4K
-	select MIPS_GIC_IPI
+	select MIPS_GIC_IPI if MIPS_GIC
 	select MIPS_MT
 	select SMP
 	select SMP_UP
@@ -2253,7 +2254,7 @@ config MIPS_VPE_APSP_API_MT
 config MIPS_CMP
 	bool "MIPS CMP framework support (DEPRECATED)"
 	depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6
-	select MIPS_GIC_IPI
+	select MIPS_GIC_IPI if MIPS_GIC
 	select SMP
 	select SYNC_R4K
 	select SYS_SUPPORTS_SMP
@@ -2273,7 +2274,7 @@ config MIPS_CPS
 	select MIPS_CM
 	select MIPS_CPC
 	select MIPS_CPS_PM if HOTPLUG_CPU
-	select MIPS_GIC_IPI
+	select MIPS_GIC_IPI if MIPS_GIC
 	select SMP
 	select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
 	select SYS_SUPPORTS_HOTPLUG_CPU
@@ -2292,6 +2293,7 @@ config MIPS_CPS_PM
 	bool
 
 config MIPS_GIC_IPI
+	depends on MIPS_GIC
 	bool
 
 config MIPS_CM
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/Kconfig.debug linux-libre-4.4.107-gnu/arch/mips/Kconfig.debug
--- linux-libre-4.4-gnu/arch/mips/Kconfig.debug	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/Kconfig.debug	2017-12-20 04:05:01.000000000 -0500
@@ -113,42 +113,6 @@ config SPINLOCK_TEST
 	help
 	  Add several files to the debugfs to test spinlock speed.
 
-if CPU_MIPSR6
-
-choice
-	prompt "Compact branch policy"
-	default MIPS_COMPACT_BRANCHES_OPTIMAL
-
-config MIPS_COMPACT_BRANCHES_NEVER
-	bool "Never (force delay slot branches)"
-	help
-	  Pass the -mcompact-branches=never flag to the compiler in order to
-	  force it to always emit branches with delay slots, and make no use
-	  of the compact branch instructions introduced by MIPSr6. This is
-	  useful if you suspect there may be an issue with compact branches in
-	  either the compiler or the CPU.
-
-config MIPS_COMPACT_BRANCHES_OPTIMAL
-	bool "Optimal (use where beneficial)"
-	help
-	  Pass the -mcompact-branches=optimal flag to the compiler in order for
-	  it to make use of compact branch instructions where it deems them
-	  beneficial, and use branches with delay slots elsewhere. This is the
-	  default compiler behaviour, and should be used unless you have a
-	  reason to choose otherwise.
-
-config MIPS_COMPACT_BRANCHES_ALWAYS
-	bool "Always (force compact branches)"
-	help
-	  Pass the -mcompact-branches=always flag to the compiler in order to
-	  force it to always emit compact branches, making no use of branch
-	  instructions with delay slots. This can result in more compact code
-	  which may be beneficial in some scenarios.
-
-endchoice
-
-endif # CPU_MIPSR6
-
 config SCACHE_DEBUGFS
 	bool "L2 cache debugfs entries"
 	depends on DEBUG_FS
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/kernel/asm-offsets.c linux-libre-4.4.107-gnu/arch/mips/kernel/asm-offsets.c
--- linux-libre-4.4-gnu/arch/mips/kernel/asm-offsets.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/kernel/asm-offsets.c	2017-12-20 04:05:01.000000000 -0500
@@ -101,6 +101,8 @@ void output_thread_info_defines(void)
 	OFFSET(TI_REGS, thread_info, regs);
 	DEFINE(_THREAD_SIZE, THREAD_SIZE);
 	DEFINE(_THREAD_MASK, THREAD_MASK);
+	DEFINE(_IRQ_STACK_SIZE, IRQ_STACK_SIZE);
+	DEFINE(_IRQ_STACK_START, IRQ_STACK_START);
 	BLANK();
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/kernel/branch.c linux-libre-4.4.107-gnu/arch/mips/kernel/branch.c
--- linux-libre-4.4-gnu/arch/mips/kernel/branch.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/kernel/branch.c	2017-12-20 04:05:01.000000000 -0500
@@ -399,7 +399,7 @@ int __MIPS16e_compute_return_epc(struct
  *
  * @regs:	Pointer to pt_regs
  * @insn:	branch instruction to decode
- * @returns:	-EFAULT on error and forces SIGBUS, and on success
+ * @returns:	-EFAULT on error and forces SIGILL, and on success
  *		returns 0 or BRANCH_LIKELY_TAKEN as appropriate after
  *		evaluating the branch.
  *
@@ -431,7 +431,7 @@ int __compute_return_epc_for_insn(struct
 			/* Fall through */
 		case jr_op:
 			if (NO_R6EMU && insn.r_format.func == jr_op)
-				goto sigill_r6;
+				goto sigill_r2r6;
 			regs->cp0_epc = regs->regs[insn.r_format.rs];
 			break;
 		}
@@ -446,7 +446,7 @@ int __compute_return_epc_for_insn(struct
 		switch (insn.i_format.rt) {
 		case bltzl_op:
 			if (NO_R6EMU)
-				goto sigill_r6;
+				goto sigill_r2r6;
 		case bltz_op:
 			if ((long)regs->regs[insn.i_format.rs] < 0) {
 				epc = epc + 4 + (insn.i_format.simmediate << 2);
@@ -459,7 +459,7 @@ int __compute_return_epc_for_insn(struct
 
 		case bgezl_op:
 			if (NO_R6EMU)
-				goto sigill_r6;
+				goto sigill_r2r6;
 		case bgez_op:
 			if ((long)regs->regs[insn.i_format.rs] >= 0) {
 				epc = epc + 4 + (insn.i_format.simmediate << 2);
@@ -473,10 +473,8 @@ int __compute_return_epc_for_insn(struct
 		case bltzal_op:
 		case bltzall_op:
 			if (NO_R6EMU && (insn.i_format.rs ||
-			    insn.i_format.rt == bltzall_op)) {
-				ret = -SIGILL;
-				break;
-			}
+			    insn.i_format.rt == bltzall_op))
+				goto sigill_r2r6;
 			regs->regs[31] = epc + 8;
 			/*
 			 * OK we are here either because we hit a NAL
@@ -507,10 +505,8 @@ int __compute_return_epc_for_insn(struct
 		case bgezal_op:
 		case bgezall_op:
 			if (NO_R6EMU && (insn.i_format.rs ||
-			    insn.i_format.rt == bgezall_op)) {
-				ret = -SIGILL;
-				break;
-			}
+			    insn.i_format.rt == bgezall_op))
+				goto sigill_r2r6;
 			regs->regs[31] = epc + 8;
 			/*
 			 * OK we are here either because we hit a BAL
@@ -556,6 +552,7 @@ int __compute_return_epc_for_insn(struct
 	/*
 	 * These are unconditional and in j_format.
 	 */
+	case jalx_op:
 	case jal_op:
 		regs->regs[31] = regs->cp0_epc + 8;
 	case j_op:
@@ -573,7 +570,7 @@ int __compute_return_epc_for_insn(struct
 	 */
 	case beql_op:
 		if (NO_R6EMU)
-			goto sigill_r6;
+			goto sigill_r2r6;
 	case beq_op:
 		if (regs->regs[insn.i_format.rs] ==
 		    regs->regs[insn.i_format.rt]) {
@@ -587,7 +584,7 @@ int __compute_return_epc_for_insn(struct
 
 	case bnel_op:
 		if (NO_R6EMU)
-			goto sigill_r6;
+			goto sigill_r2r6;
 	case bne_op:
 		if (regs->regs[insn.i_format.rs] !=
 		    regs->regs[insn.i_format.rt]) {
@@ -601,7 +598,7 @@ int __compute_return_epc_for_insn(struct
 
 	case blezl_op: /* not really i_format */
 		if (!insn.i_format.rt && NO_R6EMU)
-			goto sigill_r6;
+			goto sigill_r2r6;
 	case blez_op:
 		/*
 		 * Compact branches for R6 for the
@@ -636,7 +633,7 @@ int __compute_return_epc_for_insn(struct
 
 	case bgtzl_op:
 		if (!insn.i_format.rt && NO_R6EMU)
-			goto sigill_r6;
+			goto sigill_r2r6;
 	case bgtz_op:
 		/*
 		 * Compact branches for R6 for the
@@ -816,8 +813,10 @@ int __compute_return_epc_for_insn(struct
 			break;
 		}
 		/* Compact branch: BNEZC || JIALC */
-		if (insn.i_format.rs)
+		if (!insn.i_format.rs) {
+			/* JIALC: set $31/ra */
 			regs->regs[31] = epc + 4;
+		}
 		regs->cp0_epc += 8;
 		break;
 #endif
@@ -841,11 +840,12 @@ int __compute_return_epc_for_insn(struct
 	return ret;
 
 sigill_dsp:
-	printk("%s: DSP branch but not DSP ASE - sending SIGBUS.\n", current->comm);
-	force_sig(SIGBUS, current);
+	pr_info("%s: DSP branch but not DSP ASE - sending SIGILL.\n",
+		current->comm);
+	force_sig(SIGILL, current);
 	return -EFAULT;
-sigill_r6:
-	pr_info("%s: R2 branch but r2-to-r6 emulator is not preset - sending SIGILL.\n",
+sigill_r2r6:
+	pr_info("%s: R2 branch but r2-to-r6 emulator is not present - sending SIGILL.\n",
 		current->comm);
 	force_sig(SIGILL, current);
 	return -EFAULT;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/kernel/crash.c linux-libre-4.4.107-gnu/arch/mips/kernel/crash.c
--- linux-libre-4.4-gnu/arch/mips/kernel/crash.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/kernel/crash.c	2017-12-20 04:05:01.000000000 -0500
@@ -14,12 +14,22 @@ static int crashing_cpu = -1;
 static cpumask_t cpus_in_crash = CPU_MASK_NONE;
 
 #ifdef CONFIG_SMP
-static void crash_shutdown_secondary(void *ignore)
+static void crash_shutdown_secondary(void *passed_regs)
 {
-	struct pt_regs *regs;
+	struct pt_regs *regs = passed_regs;
 	int cpu = smp_processor_id();
 
-	regs = task_pt_regs(current);
+	/*
+	 * If we are passed registers, use those.  Otherwise get the
+	 * regs from the last interrupt, which should be correct, as
+	 * we are in an interrupt.  But if the regs are not there,
+	 * pull them from the top of the stack.  They are probably
+	 * wrong, but we need something to keep from crashing again.
+	 */
+	if (!regs)
+		regs = get_irq_regs();
+	if (!regs)
+		regs = task_pt_regs(current);
 
 	if (!cpu_online(cpu))
 		return;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/kernel/csrc-r4k.c linux-libre-4.4.107-gnu/arch/mips/kernel/csrc-r4k.c
--- linux-libre-4.4-gnu/arch/mips/kernel/csrc-r4k.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/kernel/csrc-r4k.c	2017-12-20 04:05:01.000000000 -0500
@@ -23,7 +23,7 @@ static struct clocksource clocksource_mi
 	.flags		= CLOCK_SOURCE_IS_CONTINUOUS,
 };
 
-static u64 notrace r4k_read_sched_clock(void)
+static u64 __maybe_unused notrace r4k_read_sched_clock(void)
 {
 	return read_c0_count();
 }
@@ -82,7 +82,9 @@ int __init init_r4k_clocksource(void)
 
 	clocksource_register_hz(&clocksource_mips, mips_hpt_frequency);
 
+#ifndef CONFIG_CPU_FREQ
 	sched_clock_register(r4k_read_sched_clock, 32, mips_hpt_frequency);
+#endif
 
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/kernel/elf.c linux-libre-4.4.107-gnu/arch/mips/kernel/elf.c
--- linux-libre-4.4-gnu/arch/mips/kernel/elf.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/kernel/elf.c	2017-12-20 04:05:01.000000000 -0500
@@ -206,7 +206,7 @@ int arch_check_elf(void *_ehdr, bool has
 	else if ((prog_req.fr1 && prog_req.frdefault) ||
 		 (prog_req.single && !prog_req.frdefault))
 		/* Make sure 64-bit MIPS III/IV/64R1 will not pick FR1 */
-		state->overall_fp_mode = ((current_cpu_data.fpu_id & MIPS_FPIR_F64) &&
+		state->overall_fp_mode = ((raw_current_cpu_data.fpu_id & MIPS_FPIR_F64) &&
 					  cpu_has_mips_r2_r6) ?
 					  FP_FR1 : FP_FR0;
 	else if (prog_req.fr1)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/kernel/entry.S linux-libre-4.4.107-gnu/arch/mips/kernel/entry.S
--- linux-libre-4.4-gnu/arch/mips/kernel/entry.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/kernel/entry.S	2017-12-20 04:05:01.000000000 -0500
@@ -11,6 +11,7 @@
 #include <asm/asm.h>
 #include <asm/asmmacro.h>
 #include <asm/compiler.h>
+#include <asm/irqflags.h>
 #include <asm/regdef.h>
 #include <asm/mipsregs.h>
 #include <asm/stackframe.h>
@@ -137,6 +138,7 @@ work_pending:
 	andi	t0, a2, _TIF_NEED_RESCHED # a2 is preloaded with TI_FLAGS
 	beqz	t0, work_notifysig
 work_resched:
+	TRACE_IRQS_OFF
 	jal	schedule
 
 	local_irq_disable		# make sure need_resched and
@@ -173,6 +175,7 @@ syscall_exit_work:
 	beqz	t0, work_pending	# trace bit set?
 	local_irq_enable		# could let syscall_trace_leave()
 					# call schedule() instead
+	TRACE_IRQS_ON
 	move	a0, sp
 	jal	syscall_trace_leave
 	b	resume_userspace
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/kernel/genex.S linux-libre-4.4.107-gnu/arch/mips/kernel/genex.S
--- linux-libre-4.4-gnu/arch/mips/kernel/genex.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/kernel/genex.S	2017-12-20 04:05:01.000000000 -0500
@@ -188,9 +188,46 @@ NESTED(handle_int, PT_SIZE, sp)
 
 	LONG_L	s0, TI_REGS($28)
 	LONG_S	sp, TI_REGS($28)
-	PTR_LA	ra, ret_from_irq
-	PTR_LA  v0, plat_irq_dispatch
-	jr	v0
+
+	/*
+	 * SAVE_ALL ensures we are using a valid kernel stack for the thread.
+	 * Check if we are already using the IRQ stack.
+	 */
+	move	s1, sp # Preserve the sp
+
+	/* Get IRQ stack for this CPU */
+	ASM_CPUID_MFC0	k0, ASM_SMP_CPUID_REG
+#if defined(CONFIG_32BIT) || defined(KBUILD_64BIT_SYM32)
+	lui	k1, %hi(irq_stack)
+#else
+	lui	k1, %highest(irq_stack)
+	daddiu	k1, %higher(irq_stack)
+	dsll	k1, 16
+	daddiu	k1, %hi(irq_stack)
+	dsll	k1, 16
+#endif
+	LONG_SRL	k0, SMP_CPUID_PTRSHIFT
+	LONG_ADDU	k1, k0
+	LONG_L	t0, %lo(irq_stack)(k1)
+
+	# Check if already on IRQ stack
+	PTR_LI	t1, ~(_THREAD_SIZE-1)
+	and	t1, t1, sp
+	beq	t0, t1, 2f
+
+	/* Switch to IRQ stack */
+	li	t1, _IRQ_STACK_START
+	PTR_ADD sp, t0, t1
+
+	/* Save task's sp on IRQ stack so that unwinding can follow it */
+	LONG_S	s1, 0(sp)
+2:
+	jal	plat_irq_dispatch
+
+	/* Restore sp */
+	move	sp, s1
+
+	j	ret_from_irq
 #ifdef CONFIG_CPU_MICROMIPS
 	nop
 #endif
@@ -263,8 +300,46 @@ NESTED(except_vec_vi_handler, 0, sp)
 
 	LONG_L	s0, TI_REGS($28)
 	LONG_S	sp, TI_REGS($28)
-	PTR_LA	ra, ret_from_irq
-	jr	v0
+
+	/*
+	 * SAVE_ALL ensures we are using a valid kernel stack for the thread.
+	 * Check if we are already using the IRQ stack.
+	 */
+	move	s1, sp # Preserve the sp
+
+	/* Get IRQ stack for this CPU */
+	ASM_CPUID_MFC0	k0, ASM_SMP_CPUID_REG
+#if defined(CONFIG_32BIT) || defined(KBUILD_64BIT_SYM32)
+	lui	k1, %hi(irq_stack)
+#else
+	lui	k1, %highest(irq_stack)
+	daddiu	k1, %higher(irq_stack)
+	dsll	k1, 16
+	daddiu	k1, %hi(irq_stack)
+	dsll	k1, 16
+#endif
+	LONG_SRL	k0, SMP_CPUID_PTRSHIFT
+	LONG_ADDU	k1, k0
+	LONG_L	t0, %lo(irq_stack)(k1)
+
+	# Check if already on IRQ stack
+	PTR_LI	t1, ~(_THREAD_SIZE-1)
+	and	t1, t1, sp
+	beq	t0, t1, 2f
+
+	/* Switch to IRQ stack */
+	li	t1, _IRQ_STACK_START
+	PTR_ADD sp, t0, t1
+
+	/* Save task's sp on IRQ stack so that unwinding can follow it */
+	LONG_S	s1, 0(sp)
+2:
+	jalr	v0
+
+	/* Restore sp */
+	move	sp, s1
+
+	j	ret_from_irq
 	END(except_vec_vi_handler)
 
 /*
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/kernel/irq.c linux-libre-4.4.107-gnu/arch/mips/kernel/irq.c
--- linux-libre-4.4-gnu/arch/mips/kernel/irq.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/kernel/irq.c	2017-12-20 04:05:01.000000000 -0500
@@ -25,6 +25,8 @@
 #include <linux/atomic.h>
 #include <asm/uaccess.h>
 
+void *irq_stack[NR_CPUS];
+
 /*
  * 'what should we do if we get a hw irq event on an illegal vector'.
  * each architecture has to answer this themselves.
@@ -55,6 +57,15 @@ void __init init_IRQ(void)
 		irq_set_noprobe(i);
 
 	arch_init_irq();
+
+	for_each_possible_cpu(i) {
+		int irq_pages = IRQ_STACK_SIZE / PAGE_SIZE;
+		void *s = (void *)__get_free_pages(GFP_KERNEL, irq_pages);
+
+		irq_stack[i] = s;
+		pr_debug("CPU%d IRQ stack at 0x%p - 0x%p\n", i,
+			irq_stack[i], irq_stack[i] + IRQ_STACK_SIZE);
+	}
 }
 
 #ifdef CONFIG_DEBUG_STACKOVERFLOW
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/kernel/kgdb.c linux-libre-4.4.107-gnu/arch/mips/kernel/kgdb.c
--- linux-libre-4.4-gnu/arch/mips/kernel/kgdb.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/kernel/kgdb.c	2017-12-20 04:05:01.000000000 -0500
@@ -244,9 +244,6 @@ static int compute_signal(int tt)
 void sleeping_thread_to_gdb_regs(unsigned long *gdb_regs, struct task_struct *p)
 {
 	int reg;
-	struct thread_info *ti = task_thread_info(p);
-	unsigned long ksp = (unsigned long)ti + THREAD_SIZE - 32;
-	struct pt_regs *regs = (struct pt_regs *)ksp - 1;
 #if (KGDB_GDB_REG_SIZE == 32)
 	u32 *ptr = (u32 *)gdb_regs;
 #else
@@ -254,25 +251,46 @@ void sleeping_thread_to_gdb_regs(unsigne
 #endif
 
 	for (reg = 0; reg < 16; reg++)
-		*(ptr++) = regs->regs[reg];
+		*(ptr++) = 0;
 
 	/* S0 - S7 */
-	for (reg = 16; reg < 24; reg++)
-		*(ptr++) = regs->regs[reg];
+	*(ptr++) = p->thread.reg16;
+	*(ptr++) = p->thread.reg17;
+	*(ptr++) = p->thread.reg18;
+	*(ptr++) = p->thread.reg19;
+	*(ptr++) = p->thread.reg20;
+	*(ptr++) = p->thread.reg21;
+	*(ptr++) = p->thread.reg22;
+	*(ptr++) = p->thread.reg23;
 
 	for (reg = 24; reg < 28; reg++)
 		*(ptr++) = 0;
 
 	/* GP, SP, FP, RA */
-	for (reg = 28; reg < 32; reg++)
-		*(ptr++) = regs->regs[reg];
+	*(ptr++) = (long)p;
+	*(ptr++) = p->thread.reg29;
+	*(ptr++) = p->thread.reg30;
+	*(ptr++) = p->thread.reg31;
 
-	*(ptr++) = regs->cp0_status;
-	*(ptr++) = regs->lo;
-	*(ptr++) = regs->hi;
-	*(ptr++) = regs->cp0_badvaddr;
-	*(ptr++) = regs->cp0_cause;
-	*(ptr++) = regs->cp0_epc;
+	*(ptr++) = p->thread.cp0_status;
+
+	/* lo, hi */
+	*(ptr++) = 0;
+	*(ptr++) = 0;
+
+	/*
+	 * BadVAddr, Cause
+	 * Ideally these would come from the last exception frame up the stack
+	 * but that requires unwinding, otherwise we can't know much for sure.
+	 */
+	*(ptr++) = 0;
+	*(ptr++) = 0;
+
+	/*
+	 * PC
+	 * use return address (RA), i.e. the moment after return from resume()
+	 */
+	*(ptr++) = p->thread.reg31;
 }
 
 void kgdb_arch_set_pc(struct pt_regs *regs, unsigned long pc)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/kernel/mips-r2-to-r6-emul.c linux-libre-4.4.107-gnu/arch/mips/kernel/mips-r2-to-r6-emul.c
--- linux-libre-4.4-gnu/arch/mips/kernel/mips-r2-to-r6-emul.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/kernel/mips-r2-to-r6-emul.c	2017-12-20 04:05:01.000000000 -0500
@@ -28,6 +28,7 @@
 #include <asm/inst.h>
 #include <asm/mips-r2-to-r6-emul.h>
 #include <asm/local.h>
+#include <asm/mipsregs.h>
 #include <asm/ptrace.h>
 #include <asm/uaccess.h>
 
@@ -433,8 +434,8 @@ static int multu_func(struct pt_regs *re
 	rs = regs->regs[MIPSInst_RS(ir)];
 	res = (u64)rt * (u64)rs;
 	rt = res;
-	regs->lo = (s64)rt;
-	regs->hi = (s64)(res >> 32);
+	regs->lo = (s64)(s32)rt;
+	regs->hi = (s64)(s32)(res >> 32);
 
 	MIPS_R2_STATS(muls);
 
@@ -670,9 +671,9 @@ static int maddu_func(struct pt_regs *re
 	res += ((((s64)rt) << 32) | (u32)rs);
 
 	rt = res;
-	regs->lo = (s64)rt;
+	regs->lo = (s64)(s32)rt;
 	rs = res >> 32;
-	regs->hi = (s64)rs;
+	regs->hi = (s64)(s32)rs;
 
 	MIPS_R2_STATS(dsps);
 
@@ -728,9 +729,9 @@ static int msubu_func(struct pt_regs *re
 	res = ((((s64)rt) << 32) | (u32)rs) - res;
 
 	rt = res;
-	regs->lo = (s64)rt;
+	regs->lo = (s64)(s32)rt;
 	rs = res >> 32;
-	regs->hi = (s64)rs;
+	regs->hi = (s64)(s32)rs;
 
 	MIPS_R2_STATS(dsps);
 
@@ -1163,7 +1164,9 @@ fpu_emul:
 		regs->regs[31] = r31;
 		regs->cp0_epc = epc;
 		if (!used_math()) {     /* First time FPU user.  */
+			preempt_disable();
 			err = init_fpu();
+			preempt_enable();
 			set_used_math();
 		}
 		lose_fpu(1);    /* Save FPU state for the emulator. */
@@ -1251,10 +1254,10 @@ fpu_emul:
 			"	j	10b\n"
 			"	.previous\n"
 			"	.section	__ex_table,\"a\"\n"
-			"	.word	1b,8b\n"
-			"	.word	2b,8b\n"
-			"	.word	3b,8b\n"
-			"	.word	4b,8b\n"
+			STR(PTR) " 1b,8b\n"
+			STR(PTR) " 2b,8b\n"
+			STR(PTR) " 3b,8b\n"
+			STR(PTR) " 4b,8b\n"
 			"	.previous\n"
 			"	.set	pop\n"
 			: "+&r"(rt), "=&r"(rs),
@@ -1326,10 +1329,10 @@ fpu_emul:
 			"	j	10b\n"
 			"       .previous\n"
 			"	.section	__ex_table,\"a\"\n"
-			"	.word	1b,8b\n"
-			"	.word	2b,8b\n"
-			"	.word	3b,8b\n"
-			"	.word	4b,8b\n"
+			STR(PTR) " 1b,8b\n"
+			STR(PTR) " 2b,8b\n"
+			STR(PTR) " 3b,8b\n"
+			STR(PTR) " 4b,8b\n"
 			"	.previous\n"
 			"	.set	pop\n"
 			: "+&r"(rt), "=&r"(rs),
@@ -1397,10 +1400,10 @@ fpu_emul:
 			"	j	9b\n"
 			"	.previous\n"
 			"	.section        __ex_table,\"a\"\n"
-			"	.word	1b,8b\n"
-			"	.word	2b,8b\n"
-			"	.word	3b,8b\n"
-			"	.word	4b,8b\n"
+			STR(PTR) " 1b,8b\n"
+			STR(PTR) " 2b,8b\n"
+			STR(PTR) " 3b,8b\n"
+			STR(PTR) " 4b,8b\n"
 			"	.previous\n"
 			"	.set	pop\n"
 			: "+&r"(rt), "=&r"(rs),
@@ -1467,10 +1470,10 @@ fpu_emul:
 			"	j	9b\n"
 			"	.previous\n"
 			"	.section        __ex_table,\"a\"\n"
-			"	.word	1b,8b\n"
-			"	.word	2b,8b\n"
-			"	.word	3b,8b\n"
-			"	.word	4b,8b\n"
+			STR(PTR) " 1b,8b\n"
+			STR(PTR) " 2b,8b\n"
+			STR(PTR) " 3b,8b\n"
+			STR(PTR) " 4b,8b\n"
 			"	.previous\n"
 			"	.set	pop\n"
 			: "+&r"(rt), "=&r"(rs),
@@ -1582,14 +1585,14 @@ fpu_emul:
 			"	j	9b\n"
 			"	.previous\n"
 			"	.section        __ex_table,\"a\"\n"
-			"	.word	1b,8b\n"
-			"	.word	2b,8b\n"
-			"	.word	3b,8b\n"
-			"	.word	4b,8b\n"
-			"	.word	5b,8b\n"
-			"	.word	6b,8b\n"
-			"	.word	7b,8b\n"
-			"	.word	0b,8b\n"
+			STR(PTR) " 1b,8b\n"
+			STR(PTR) " 2b,8b\n"
+			STR(PTR) " 3b,8b\n"
+			STR(PTR) " 4b,8b\n"
+			STR(PTR) " 5b,8b\n"
+			STR(PTR) " 6b,8b\n"
+			STR(PTR) " 7b,8b\n"
+			STR(PTR) " 0b,8b\n"
 			"	.previous\n"
 			"	.set	pop\n"
 			: "+&r"(rt), "=&r"(rs),
@@ -1701,14 +1704,14 @@ fpu_emul:
 			"	j      9b\n"
 			"	.previous\n"
 			"	.section        __ex_table,\"a\"\n"
-			"	.word  1b,8b\n"
-			"	.word  2b,8b\n"
-			"	.word  3b,8b\n"
-			"	.word  4b,8b\n"
-			"	.word  5b,8b\n"
-			"	.word  6b,8b\n"
-			"	.word  7b,8b\n"
-			"	.word  0b,8b\n"
+			STR(PTR) " 1b,8b\n"
+			STR(PTR) " 2b,8b\n"
+			STR(PTR) " 3b,8b\n"
+			STR(PTR) " 4b,8b\n"
+			STR(PTR) " 5b,8b\n"
+			STR(PTR) " 6b,8b\n"
+			STR(PTR) " 7b,8b\n"
+			STR(PTR) " 0b,8b\n"
 			"	.previous\n"
 			"	.set    pop\n"
 			: "+&r"(rt), "=&r"(rs),
@@ -1820,14 +1823,14 @@ fpu_emul:
 			"	j	9b\n"
 			"	.previous\n"
 			"	.section        __ex_table,\"a\"\n"
-			"	.word	1b,8b\n"
-			"	.word	2b,8b\n"
-			"	.word	3b,8b\n"
-			"	.word	4b,8b\n"
-			"	.word	5b,8b\n"
-			"	.word	6b,8b\n"
-			"	.word	7b,8b\n"
-			"	.word	0b,8b\n"
+			STR(PTR) " 1b,8b\n"
+			STR(PTR) " 2b,8b\n"
+			STR(PTR) " 3b,8b\n"
+			STR(PTR) " 4b,8b\n"
+			STR(PTR) " 5b,8b\n"
+			STR(PTR) " 6b,8b\n"
+			STR(PTR) " 7b,8b\n"
+			STR(PTR) " 0b,8b\n"
 			"	.previous\n"
 			"	.set	pop\n"
 			: "+&r"(rt), "=&r"(rs),
@@ -1938,14 +1941,14 @@ fpu_emul:
 			"       j	9b\n"
 			"       .previous\n"
 			"       .section        __ex_table,\"a\"\n"
-			"       .word	1b,8b\n"
-			"       .word	2b,8b\n"
-			"       .word	3b,8b\n"
-			"       .word	4b,8b\n"
-			"       .word	5b,8b\n"
-			"       .word	6b,8b\n"
-			"       .word	7b,8b\n"
-			"       .word	0b,8b\n"
+			STR(PTR) " 1b,8b\n"
+			STR(PTR) " 2b,8b\n"
+			STR(PTR) " 3b,8b\n"
+			STR(PTR) " 4b,8b\n"
+			STR(PTR) " 5b,8b\n"
+			STR(PTR) " 6b,8b\n"
+			STR(PTR) " 7b,8b\n"
+			STR(PTR) " 0b,8b\n"
 			"       .previous\n"
 			"       .set	pop\n"
 			: "+&r"(rt), "=&r"(rs),
@@ -2000,7 +2003,7 @@ fpu_emul:
 			"j	2b\n"
 			".previous\n"
 			".section        __ex_table,\"a\"\n"
-			".word  1b, 3b\n"
+			STR(PTR) " 1b,3b\n"
 			".previous\n"
 			: "=&r"(res), "+&r"(err)
 			: "r"(vaddr), "i"(SIGSEGV)
@@ -2058,7 +2061,7 @@ fpu_emul:
 			"j	2b\n"
 			".previous\n"
 			".section        __ex_table,\"a\"\n"
-			".word	1b, 3b\n"
+			STR(PTR) " 1b,3b\n"
 			".previous\n"
 			: "+&r"(res), "+&r"(err)
 			: "r"(vaddr), "i"(SIGSEGV));
@@ -2119,7 +2122,7 @@ fpu_emul:
 			"j	2b\n"
 			".previous\n"
 			".section        __ex_table,\"a\"\n"
-			".word  1b, 3b\n"
+			STR(PTR) " 1b,3b\n"
 			".previous\n"
 			: "=&r"(res), "+&r"(err)
 			: "r"(vaddr), "i"(SIGSEGV)
@@ -2182,7 +2185,7 @@ fpu_emul:
 			"j	2b\n"
 			".previous\n"
 			".section        __ex_table,\"a\"\n"
-			".word	1b, 3b\n"
+			STR(PTR) " 1b,3b\n"
 			".previous\n"
 			: "+&r"(res), "+&r"(err)
 			: "r"(vaddr), "i"(SIGSEGV));
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/kernel/pm.c linux-libre-4.4.107-gnu/arch/mips/kernel/pm.c
--- linux-libre-4.4-gnu/arch/mips/kernel/pm.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/kernel/pm.c	2017-12-20 04:05:01.000000000 -0500
@@ -56,7 +56,7 @@ static void mips_cpu_restore(void)
 		write_c0_userlocal(current_thread_info()->tp_value);
 
 	/* Restore watch registers */
-	__restore_watch();
+	__restore_watch(current);
 }
 
 /**
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/kernel/pm-cps.c linux-libre-4.4.107-gnu/arch/mips/kernel/pm-cps.c
--- linux-libre-4.4-gnu/arch/mips/kernel/pm-cps.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/kernel/pm-cps.c	2017-12-20 04:05:01.000000000 -0500
@@ -55,7 +55,6 @@ DECLARE_BITMAP(state_support, CPS_PM_STA
  * state. Actually per-core rather than per-CPU.
  */
 static DEFINE_PER_CPU_ALIGNED(u32*, ready_count);
-static DEFINE_PER_CPU_ALIGNED(void*, ready_count_alloc);
 
 /* Indicates online CPUs coupled with the current CPU */
 static DEFINE_PER_CPU_ALIGNED(cpumask_t, online_coupled);
@@ -625,7 +624,6 @@ static int __init cps_gen_core_entries(u
 {
 	enum cps_pm_state state;
 	unsigned core = cpu_data[cpu].core;
-	unsigned dlinesz = cpu_data[cpu].dcache.linesz;
 	void *entry_fn, *core_rc;
 
 	for (state = CPS_PM_NC_WAIT; state < CPS_PM_STATE_COUNT; state++) {
@@ -645,16 +643,11 @@ static int __init cps_gen_core_entries(u
 	}
 
 	if (!per_cpu(ready_count, core)) {
-		core_rc = kmalloc(dlinesz * 2, GFP_KERNEL);
+		core_rc = kmalloc(sizeof(u32), GFP_KERNEL);
 		if (!core_rc) {
 			pr_err("Failed allocate core %u ready_count\n", core);
 			return -ENOMEM;
 		}
-		per_cpu(ready_count_alloc, core) = core_rc;
-
-		/* Ensure ready_count is aligned to a cacheline boundary */
-		core_rc += dlinesz - 1;
-		core_rc = (void *)((unsigned long)core_rc & ~(dlinesz - 1));
 		per_cpu(ready_count, core) = core_rc;
 	}
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/kernel/proc.c linux-libre-4.4.107-gnu/arch/mips/kernel/proc.c
--- linux-libre-4.4-gnu/arch/mips/kernel/proc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/kernel/proc.c	2017-12-20 04:05:01.000000000 -0500
@@ -83,7 +83,7 @@ static int show_cpuinfo(struct seq_file
 	}
 
 	seq_printf(m, "isa\t\t\t:"); 
-	if (cpu_has_mips_r1)
+	if (cpu_has_mips_1)
 		seq_printf(m, " mips1");
 	if (cpu_has_mips_2)
 		seq_printf(m, "%s", " mips2");
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/kernel/process.c linux-libre-4.4.107-gnu/arch/mips/kernel/process.c
--- linux-libre-4.4-gnu/arch/mips/kernel/process.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/kernel/process.c	2017-12-20 04:05:01.000000000 -0500
@@ -32,6 +32,7 @@
 #include <asm/cpu.h>
 #include <asm/dsp.h>
 #include <asm/fpu.h>
+#include <asm/irq.h>
 #include <asm/msa.h>
 #include <asm/pgtable.h>
 #include <asm/mipsregs.h>
@@ -48,9 +49,7 @@
 #ifdef CONFIG_HOTPLUG_CPU
 void arch_cpu_idle_dead(void)
 {
-	/* What the heck is this check doing ? */
-	if (!cpumask_test_cpu(smp_processor_id(), &cpu_callin_map))
-		play_dead();
+	play_dead();
 }
 #endif
 
@@ -191,11 +190,9 @@ struct mips_frame_info {
 #define J_TARGET(pc,target)	\
 		(((unsigned long)(pc) & 0xf0000000) | ((target) << 2))
 
-static inline int is_ra_save_ins(union mips_instruction *ip)
+static inline int is_ra_save_ins(union mips_instruction *ip, int *poff)
 {
 #ifdef CONFIG_CPU_MICROMIPS
-	union mips_instruction mmi;
-
 	/*
 	 * swsp ra,offset
 	 * swm16 reglist,offset(sp)
@@ -205,29 +202,71 @@ static inline int is_ra_save_ins(union m
 	 *
 	 * microMIPS is way more fun...
 	 */
-	if (mm_insn_16bit(ip->halfword[0])) {
-		mmi.word = (ip->halfword[0] << 16);
-		return (mmi.mm16_r5_format.opcode == mm_swsp16_op &&
-			mmi.mm16_r5_format.rt == 31) ||
-		       (mmi.mm16_m_format.opcode == mm_pool16c_op &&
-			mmi.mm16_m_format.func == mm_swm16_op);
+	if (mm_insn_16bit(ip->halfword[1])) {
+		switch (ip->mm16_r5_format.opcode) {
+		case mm_swsp16_op:
+			if (ip->mm16_r5_format.rt != 31)
+				return 0;
+
+			*poff = ip->mm16_r5_format.simmediate;
+			*poff = (*poff << 2) / sizeof(ulong);
+			return 1;
+
+		case mm_pool16c_op:
+			switch (ip->mm16_m_format.func) {
+			case mm_swm16_op:
+				*poff = ip->mm16_m_format.imm;
+				*poff += 1 + ip->mm16_m_format.rlist;
+				*poff = (*poff << 2) / sizeof(ulong);
+				return 1;
+
+			default:
+				return 0;
+			}
+
+		default:
+			return 0;
+		}
 	}
-	else {
-		mmi.halfword[0] = ip->halfword[1];
-		mmi.halfword[1] = ip->halfword[0];
-		return (mmi.mm_m_format.opcode == mm_pool32b_op &&
-			mmi.mm_m_format.rd > 9 &&
-			mmi.mm_m_format.base == 29 &&
-			mmi.mm_m_format.func == mm_swm32_func) ||
-		       (mmi.i_format.opcode == mm_sw32_op &&
-			mmi.i_format.rs == 29 &&
-			mmi.i_format.rt == 31);
+
+	switch (ip->i_format.opcode) {
+	case mm_sw32_op:
+		if (ip->i_format.rs != 29)
+			return 0;
+		if (ip->i_format.rt != 31)
+			return 0;
+
+		*poff = ip->i_format.simmediate / sizeof(ulong);
+		return 1;
+
+	case mm_pool32b_op:
+		switch (ip->mm_m_format.func) {
+		case mm_swm32_func:
+			if (ip->mm_m_format.rd < 0x10)
+				return 0;
+			if (ip->mm_m_format.base != 29)
+				return 0;
+
+			*poff = ip->mm_m_format.simmediate;
+			*poff += (ip->mm_m_format.rd & 0xf) * sizeof(u32);
+			*poff /= sizeof(ulong);
+			return 1;
+		default:
+			return 0;
+		}
+
+	default:
+		return 0;
 	}
 #else
 	/* sw / sd $ra, offset($sp) */
-	return (ip->i_format.opcode == sw_op || ip->i_format.opcode == sd_op) &&
-		ip->i_format.rs == 29 &&
-		ip->i_format.rt == 31;
+	if ((ip->i_format.opcode == sw_op || ip->i_format.opcode == sd_op) &&
+		ip->i_format.rs == 29 && ip->i_format.rt == 31) {
+		*poff = ip->i_format.simmediate / sizeof(ulong);
+		return 1;
+	}
+
+	return 0;
 #endif
 }
 
@@ -242,13 +281,16 @@ static inline int is_jump_ins(union mips
 	 *
 	 * microMIPS is kind of more fun...
 	 */
-	union mips_instruction mmi;
-
-	mmi.word = (ip->halfword[0] << 16);
+	if (mm_insn_16bit(ip->halfword[1])) {
+		if ((ip->mm16_r5_format.opcode == mm_pool16c_op &&
+		    (ip->mm16_r5_format.rt & mm_jr16_op) == mm_jr16_op))
+			return 1;
+		return 0;
+	}
 
-	if ((mmi.mm16_r5_format.opcode == mm_pool16c_op &&
-	    (mmi.mm16_r5_format.rt & mm_jr16_op) == mm_jr16_op) ||
-	    ip->j_format.opcode == mm_jal32_op)
+	if (ip->j_format.opcode == mm_j32_op)
+		return 1;
+	if (ip->j_format.opcode == mm_jal32_op)
 		return 1;
 	if (ip->r_format.opcode != mm_pool32a_op ||
 			ip->r_format.func != mm_pool32axf_op)
@@ -276,15 +318,13 @@ static inline int is_sp_move_ins(union m
 	 *
 	 * microMIPS is not more fun...
 	 */
-	if (mm_insn_16bit(ip->halfword[0])) {
-		union mips_instruction mmi;
-
-		mmi.word = (ip->halfword[0] << 16);
-		return (mmi.mm16_r3_format.opcode == mm_pool16d_op &&
-			mmi.mm16_r3_format.simmediate && mm_addiusp_func) ||
-		       (mmi.mm16_r5_format.opcode == mm_pool16d_op &&
-			mmi.mm16_r5_format.rt == 29);
+	if (mm_insn_16bit(ip->halfword[1])) {
+		return (ip->mm16_r3_format.opcode == mm_pool16d_op &&
+			ip->mm16_r3_format.simmediate && mm_addiusp_func) ||
+		       (ip->mm16_r5_format.opcode == mm_pool16d_op &&
+			ip->mm16_r5_format.rt == 29);
 	}
+
 	return ip->mm_i_format.opcode == mm_addiu32_op &&
 	       ip->mm_i_format.rt == 29 && ip->mm_i_format.rs == 29;
 #else
@@ -299,30 +339,36 @@ static inline int is_sp_move_ins(union m
 
 static int get_frame_info(struct mips_frame_info *info)
 {
-#ifdef CONFIG_CPU_MICROMIPS
-	union mips_instruction *ip = (void *) (((char *) info->func) - 1);
-#else
-	union mips_instruction *ip = info->func;
-#endif
-	unsigned max_insns = info->func_size / sizeof(union mips_instruction);
-	unsigned i;
+	bool is_mmips = IS_ENABLED(CONFIG_CPU_MICROMIPS);
+	union mips_instruction insn, *ip, *ip_end;
+	const unsigned int max_insns = 128;
+	unsigned int i;
 
 	info->pc_offset = -1;
 	info->frame_size = 0;
 
+	ip = (void *)msk_isa16_mode((ulong)info->func);
 	if (!ip)
 		goto err;
 
-	if (max_insns == 0)
-		max_insns = 128U;	/* unknown function size */
-	max_insns = min(128U, max_insns);
+	ip_end = (void *)ip + info->func_size;
 
-	for (i = 0; i < max_insns; i++, ip++) {
+	for (i = 0; i < max_insns && ip < ip_end; i++, ip++) {
+		if (is_mmips && mm_insn_16bit(ip->halfword[0])) {
+			insn.halfword[0] = 0;
+			insn.halfword[1] = ip->halfword[0];
+		} else if (is_mmips) {
+			insn.halfword[0] = ip->halfword[1];
+			insn.halfword[1] = ip->halfword[0];
+		} else {
+			insn.word = ip->word;
+		}
 
-		if (is_jump_ins(ip))
+		if (is_jump_ins(&insn))
 			break;
+
 		if (!info->frame_size) {
-			if (is_sp_move_ins(ip))
+			if (is_sp_move_ins(&insn))
 			{
 #ifdef CONFIG_CPU_MICROMIPS
 				if (mm_insn_16bit(ip->halfword[0]))
@@ -345,11 +391,9 @@ static int get_frame_info(struct mips_fr
 			}
 			continue;
 		}
-		if (info->pc_offset == -1 && is_ra_save_ins(ip)) {
-			info->pc_offset =
-				ip->i_format.simmediate / sizeof(long);
+		if (info->pc_offset == -1 &&
+		    is_ra_save_ins(&insn, &info->pc_offset))
 			break;
-		}
 	}
 	if (info->frame_size && info->pc_offset >= 0) /* nested */
 		return 0;
@@ -437,31 +481,52 @@ unsigned long notrace unwind_stack_by_ad
 					      unsigned long pc,
 					      unsigned long *ra)
 {
+	unsigned long low, high, irq_stack_high;
 	struct mips_frame_info info;
 	unsigned long size, ofs;
+	struct pt_regs *regs;
 	int leaf;
-	extern void ret_from_irq(void);
-	extern void ret_from_exception(void);
 
 	if (!stack_page)
 		return 0;
 
 	/*
-	 * If we reached the bottom of interrupt context,
-	 * return saved pc in pt_regs.
+	 * IRQ stacks start at IRQ_STACK_START
+	 * task stacks at THREAD_SIZE - 32
 	 */
-	if (pc == (unsigned long)ret_from_irq ||
-	    pc == (unsigned long)ret_from_exception) {
-		struct pt_regs *regs;
-		if (*sp >= stack_page &&
-		    *sp + sizeof(*regs) <= stack_page + THREAD_SIZE - 32) {
-			regs = (struct pt_regs *)*sp;
-			pc = regs->cp0_epc;
-			if (__kernel_text_address(pc)) {
-				*sp = regs->regs[29];
-				*ra = regs->regs[31];
-				return pc;
-			}
+	low = stack_page;
+	if (!preemptible() && on_irq_stack(raw_smp_processor_id(), *sp)) {
+		high = stack_page + IRQ_STACK_START;
+		irq_stack_high = high;
+	} else {
+		high = stack_page + THREAD_SIZE - 32;
+		irq_stack_high = 0;
+	}
+
+	/*
+	 * If we reached the top of the interrupt stack, start unwinding
+	 * the interrupted task stack.
+	 */
+	if (unlikely(*sp == irq_stack_high)) {
+		unsigned long task_sp = *(unsigned long *)*sp;
+
+		/*
+		 * Check that the pointer saved in the IRQ stack head points to
+		 * something within the stack of the current task
+		 */
+		if (!object_is_on_stack((void *)task_sp))
+			return 0;
+
+		/*
+		 * Follow pointer to tasks kernel stack frame where interrupted
+		 * state was saved.
+		 */
+		regs = (struct pt_regs *)task_sp;
+		pc = regs->cp0_epc;
+		if (!user_mode(regs) && __kernel_text_address(pc)) {
+			*sp = regs->regs[29];
+			*ra = regs->regs[31];
+			return pc;
 		}
 		return 0;
 	}
@@ -482,8 +547,7 @@ unsigned long notrace unwind_stack_by_ad
 	if (leaf < 0)
 		return 0;
 
-	if (*sp < stack_page ||
-	    *sp + info.frame_size > stack_page + THREAD_SIZE - 32)
+	if (*sp < low || *sp + info.frame_size > high)
 		return 0;
 
 	if (leaf)
@@ -507,7 +571,19 @@ EXPORT_SYMBOL(unwind_stack_by_address);
 unsigned long unwind_stack(struct task_struct *task, unsigned long *sp,
 			   unsigned long pc, unsigned long *ra)
 {
-	unsigned long stack_page = (unsigned long)task_stack_page(task);
+	unsigned long stack_page = 0;
+	int cpu;
+
+	for_each_possible_cpu(cpu) {
+		if (on_irq_stack(cpu, *sp)) {
+			stack_page = (unsigned long)irq_stack[cpu];
+			break;
+		}
+	}
+
+	if (!stack_page)
+		stack_page = (unsigned long)task_stack_page(task);
+
 	return unwind_stack_by_address(stack_page, sp, pc, ra);
 }
 #endif
@@ -593,16 +669,19 @@ int mips_set_process_fp_mode(struct task
 		return -EOPNOTSUPP;
 
 	/* Avoid inadvertently triggering emulation */
-	if ((value & PR_FP_MODE_FR) && cpu_has_fpu &&
-	    !(current_cpu_data.fpu_id & MIPS_FPIR_F64))
+	if ((value & PR_FP_MODE_FR) && raw_cpu_has_fpu &&
+	    !(raw_current_cpu_data.fpu_id & MIPS_FPIR_F64))
 		return -EOPNOTSUPP;
-	if ((value & PR_FP_MODE_FRE) && cpu_has_fpu && !cpu_has_fre)
+	if ((value & PR_FP_MODE_FRE) && raw_cpu_has_fpu && !cpu_has_fre)
 		return -EOPNOTSUPP;
 
 	/* FR = 0 not supported in MIPS R6 */
-	if (!(value & PR_FP_MODE_FR) && cpu_has_fpu && cpu_has_mips_r6)
+	if (!(value & PR_FP_MODE_FR) && raw_cpu_has_fpu && cpu_has_mips_r6)
 		return -EOPNOTSUPP;
 
+	/* Proceed with the mode switch */
+	preempt_disable();
+
 	/* Save FP & vector context, then disable FPU & MSA */
 	if (task->signal == current->signal)
 		lose_fpu(1);
@@ -661,6 +740,7 @@ int mips_set_process_fp_mode(struct task
 
 	/* Allow threads to use FP again */
 	atomic_set(&task->mm->context.fp_mode_switching, 0);
+	preempt_enable();
 
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/kernel/ptrace.c linux-libre-4.4.107-gnu/arch/mips/kernel/ptrace.c
--- linux-libre-4.4-gnu/arch/mips/kernel/ptrace.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/kernel/ptrace.c	2017-12-20 04:05:01.000000000 -0500
@@ -57,8 +57,7 @@ static void init_fp_ctx(struct task_stru
 	/* Begin with data registers set to all 1s... */
 	memset(&target->thread.fpu.fpr, ~0, sizeof(target->thread.fpu.fpr));
 
-	/* ...and FCSR zeroed */
-	target->thread.fpu.fcr31 = 0;
+	/* FCSR has been preset by `mips_set_personality_nan'.  */
 
 	/*
 	 * Record that the target has "used" math, such that the context
@@ -80,6 +79,22 @@ void ptrace_disable(struct task_struct *
 }
 
 /*
+ * Poke at FCSR according to its mask.  Don't set the cause bits as
+ * this is currently not handled correctly in FP context restoration
+ * and will cause an oops if a corresponding enable bit is set.
+ */
+static void ptrace_setfcr31(struct task_struct *child, u32 value)
+{
+	u32 fcr31;
+	u32 mask;
+
+	value &= ~FPU_CSR_ALL_X;
+	fcr31 = child->thread.fpu.fcr31;
+	mask = boot_cpu_data.fpu_msk31;
+	child->thread.fpu.fcr31 = (value & ~mask) | (fcr31 & mask);
+}
+
+/*
  * Read a general register set.	 We always use the 64-bit format, even
  * for 32-bit kernels and for 32-bit processes on a 64-bit kernel.
  * Registers are sign extended to fill the available space.
@@ -159,9 +174,7 @@ int ptrace_setfpregs(struct task_struct
 {
 	union fpureg *fregs;
 	u64 fpr_val;
-	u32 fcr31;
 	u32 value;
-	u32 mask;
 	int i;
 
 	if (!access_ok(VERIFY_READ, data, 33 * 8))
@@ -176,9 +189,7 @@ int ptrace_setfpregs(struct task_struct
 	}
 
 	__get_user(value, data + 64);
-	fcr31 = child->thread.fpu.fcr31;
-	mask = boot_cpu_data.fpu_msk31;
-	child->thread.fpu.fcr31 = (value & ~mask) | (fcr31 & mask);
+	ptrace_setfcr31(child, value);
 
 	/* FIR may not be written.  */
 
@@ -474,7 +485,8 @@ static int fpr_set(struct task_struct *t
 					  &target->thread.fpu,
 					  0, sizeof(elf_fpregset_t));
 
-	for (i = 0; i < NUM_FPU_REGS; i++) {
+	BUILD_BUG_ON(sizeof(fpr_val) != sizeof(elf_fpreg_t));
+	for (i = 0; i < NUM_FPU_REGS && count >= sizeof(elf_fpreg_t); i++) {
 		err = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
 					 &fpr_val, i * sizeof(elf_fpreg_t),
 					 (i + 1) * sizeof(elf_fpreg_t));
@@ -638,6 +650,19 @@ static const struct user_regset_view use
 	.n		= ARRAY_SIZE(mips64_regsets),
 };
 
+#ifdef CONFIG_MIPS32_N32
+
+static const struct user_regset_view user_mipsn32_view = {
+	.name		= "mipsn32",
+	.e_flags	= EF_MIPS_ABI2,
+	.e_machine	= ELF_ARCH,
+	.ei_osabi	= ELF_OSABI,
+	.regsets	= mips64_regsets,
+	.n		= ARRAY_SIZE(mips64_regsets),
+};
+
+#endif /* CONFIG_MIPS32_N32 */
+
 #endif /* CONFIG_64BIT */
 
 const struct user_regset_view *task_user_regset_view(struct task_struct *task)
@@ -649,6 +674,10 @@ const struct user_regset_view *task_user
 	if (test_tsk_thread_flag(task, TIF_32BIT_REGS))
 		return &user_mips_view;
 #endif
+#ifdef CONFIG_MIPS32_N32
+	if (test_tsk_thread_flag(task, TIF_32BIT_ADDR))
+		return &user_mipsn32_view;
+#endif
 	return &user_mips64_view;
 #endif
 }
@@ -808,7 +837,7 @@ long arch_ptrace(struct task_struct *chi
 			break;
 #endif
 		case FPC_CSR:
-			child->thread.fpu.fcr31 = data & ~FPU_CSR_ALL_X;
+			ptrace_setfcr31(child, data);
 			break;
 		case DSP_BASE ... DSP_BASE + 5: {
 			dspreg_t *dregs;
@@ -915,7 +944,7 @@ asmlinkage void syscall_trace_leave(stru
 	audit_syscall_exit(regs);
 
 	if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
-		trace_sys_exit(regs, regs->regs[2]);
+		trace_sys_exit(regs, regs_return_value(regs));
 
 	if (test_thread_flag(TIF_SYSCALL_TRACE))
 		tracehook_report_syscall_exit(regs, 0);
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/kernel/r4k_fpu.S linux-libre-4.4.107-gnu/arch/mips/kernel/r4k_fpu.S
--- linux-libre-4.4-gnu/arch/mips/kernel/r4k_fpu.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/kernel/r4k_fpu.S	2017-12-20 04:05:01.000000000 -0500
@@ -244,17 +244,17 @@ LEAF(\name)
 	.set	push
 	.set	noat
 #ifdef CONFIG_64BIT
-	copy_u_d \wr, 1
+	copy_s_d \wr, 1
 	EX sd	$1, \off(\base)
 #elif defined(CONFIG_CPU_LITTLE_ENDIAN)
-	copy_u_w \wr, 2
+	copy_s_w \wr, 2
 	EX sw	$1, \off(\base)
-	copy_u_w \wr, 3
+	copy_s_w \wr, 3
 	EX sw	$1, (\off+4)(\base)
 #else /* CONFIG_CPU_BIG_ENDIAN */
-	copy_u_w \wr, 2
+	copy_s_w \wr, 2
 	EX sw	$1, (\off+4)(\base)
-	copy_u_w \wr, 3
+	copy_s_w \wr, 3
 	EX sw	$1, \off(\base)
 #endif
 	.set	pop
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/kernel/scall32-o32.S linux-libre-4.4.107-gnu/arch/mips/kernel/scall32-o32.S
--- linux-libre-4.4-gnu/arch/mips/kernel/scall32-o32.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/kernel/scall32-o32.S	2017-12-20 04:05:01.000000000 -0500
@@ -372,7 +372,7 @@ EXPORT(sys_call_table)
 	PTR	sys_writev
 	PTR	sys_cacheflush
 	PTR	sys_cachectl
-	PTR	sys_sysmips
+	PTR	__sys_sysmips
 	PTR	sys_ni_syscall			/* 4150 */
 	PTR	sys_getsid
 	PTR	sys_fdatasync
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/kernel/scall64-64.S linux-libre-4.4.107-gnu/arch/mips/kernel/scall64-64.S
--- linux-libre-4.4-gnu/arch/mips/kernel/scall64-64.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/kernel/scall64-64.S	2017-12-20 04:05:01.000000000 -0500
@@ -312,7 +312,7 @@ EXPORT(sys_call_table)
 	PTR	sys_sched_getaffinity
 	PTR	sys_cacheflush
 	PTR	sys_cachectl
-	PTR	sys_sysmips
+	PTR	__sys_sysmips
 	PTR	sys_io_setup			/* 5200 */
 	PTR	sys_io_destroy
 	PTR	sys_io_getevents
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/kernel/scall64-n32.S linux-libre-4.4.107-gnu/arch/mips/kernel/scall64-n32.S
--- linux-libre-4.4-gnu/arch/mips/kernel/scall64-n32.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/kernel/scall64-n32.S	2017-12-20 04:05:01.000000000 -0500
@@ -298,7 +298,7 @@ EXPORT(sysn32_call_table)
 	PTR	compat_sys_sched_getaffinity
 	PTR	sys_cacheflush
 	PTR	sys_cachectl
-	PTR	sys_sysmips
+	PTR	__sys_sysmips
 	PTR	compat_sys_io_setup			/* 6200 */
 	PTR	sys_io_destroy
 	PTR	compat_sys_io_getevents
@@ -344,7 +344,7 @@ EXPORT(sysn32_call_table)
 	PTR	sys_ni_syscall			/* available, was setaltroot */
 	PTR	sys_add_key
 	PTR	sys_request_key
-	PTR	sys_keyctl			/* 6245 */
+	PTR	compat_sys_keyctl		/* 6245 */
 	PTR	sys_set_thread_area
 	PTR	sys_inotify_init
 	PTR	sys_inotify_add_watch
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/kernel/scall64-o32.S linux-libre-4.4.107-gnu/arch/mips/kernel/scall64-o32.S
--- linux-libre-4.4-gnu/arch/mips/kernel/scall64-o32.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/kernel/scall64-o32.S	2017-12-20 04:05:01.000000000 -0500
@@ -367,7 +367,7 @@ EXPORT(sys32_call_table)
 	PTR	compat_sys_writev
 	PTR	sys_cacheflush
 	PTR	sys_cachectl
-	PTR	sys_sysmips
+	PTR	__sys_sysmips
 	PTR	sys_ni_syscall			/* 4150 */
 	PTR	sys_getsid
 	PTR	sys_fdatasync
@@ -500,7 +500,7 @@ EXPORT(sys32_call_table)
 	PTR	sys_ni_syscall			/* available, was setaltroot */
 	PTR	sys_add_key			/* 4280 */
 	PTR	sys_request_key
-	PTR	sys_keyctl
+	PTR	compat_sys_keyctl
 	PTR	sys_set_thread_area
 	PTR	sys_inotify_init
 	PTR	sys_inotify_add_watch		/* 4285 */
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/kernel/setup.c linux-libre-4.4.107-gnu/arch/mips/kernel/setup.c
--- linux-libre-4.4-gnu/arch/mips/kernel/setup.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/kernel/setup.c	2017-12-20 04:05:01.000000000 -0500
@@ -152,6 +152,35 @@ void __init detect_memory_region(phys_ad
 	add_memory_region(start, size, BOOT_MEM_RAM);
 }
 
+bool __init memory_region_available(phys_addr_t start, phys_addr_t size)
+{
+	int i;
+	bool in_ram = false, free = true;
+
+	for (i = 0; i < boot_mem_map.nr_map; i++) {
+		phys_addr_t start_, end_;
+
+		start_ = boot_mem_map.map[i].addr;
+		end_ = boot_mem_map.map[i].addr + boot_mem_map.map[i].size;
+
+		switch (boot_mem_map.map[i].type) {
+		case BOOT_MEM_RAM:
+			if (start >= start_ && start + size <= end_)
+				in_ram = true;
+			break;
+		case BOOT_MEM_RESERVED:
+			if ((start >= start_ && start < end_) ||
+			    (start < start_ && start + size >= start_))
+				free = false;
+			break;
+		default:
+			continue;
+		}
+	}
+
+	return in_ram && free;
+}
+
 static void __init print_memory_map(void)
 {
 	int i;
@@ -300,11 +329,19 @@ static void __init bootmem_init(void)
 
 #else  /* !CONFIG_SGI_IP27 */
 
+static unsigned long __init bootmap_bytes(unsigned long pages)
+{
+	unsigned long bytes = DIV_ROUND_UP(pages, 8);
+
+	return ALIGN(bytes, sizeof(long));
+}
+
 static void __init bootmem_init(void)
 {
 	unsigned long reserved_end;
 	unsigned long mapstart = ~0UL;
 	unsigned long bootmap_size;
+	bool bootmap_valid = false;
 	int i;
 
 	/*
@@ -385,11 +422,42 @@ static void __init bootmem_init(void)
 #endif
 
 	/*
-	 * Initialize the boot-time allocator with low memory only.
+	 * check that mapstart doesn't overlap with any of
+	 * memory regions that have been reserved through eg. DTB
 	 */
-	bootmap_size = init_bootmem_node(NODE_DATA(0), mapstart,
-					 min_low_pfn, max_low_pfn);
+	bootmap_size = bootmap_bytes(max_low_pfn - min_low_pfn);
+
+	bootmap_valid = memory_region_available(PFN_PHYS(mapstart),
+						bootmap_size);
+	for (i = 0; i < boot_mem_map.nr_map && !bootmap_valid; i++) {
+		unsigned long mapstart_addr;
+
+		switch (boot_mem_map.map[i].type) {
+		case BOOT_MEM_RESERVED:
+			mapstart_addr = PFN_ALIGN(boot_mem_map.map[i].addr +
+						boot_mem_map.map[i].size);
+			if (PHYS_PFN(mapstart_addr) < mapstart)
+				break;
+
+			bootmap_valid = memory_region_available(mapstart_addr,
+								bootmap_size);
+			if (bootmap_valid)
+				mapstart = PHYS_PFN(mapstart_addr);
+			break;
+		default:
+			break;
+		}
+	}
+
+	if (!bootmap_valid)
+		panic("No memory area to place a bootmap bitmap");
 
+	/*
+	 * Initialize the boot-time allocator with low memory only.
+	 */
+	if (bootmap_size != init_bootmem_node(NODE_DATA(0), mapstart,
+					 min_low_pfn, max_low_pfn))
+		panic("Unexpected memory size required for bootmap");
 
 	for (i = 0; i < boot_mem_map.nr_map; i++) {
 		unsigned long start, end;
@@ -438,6 +506,10 @@ static void __init bootmem_init(void)
 			continue;
 		default:
 			/* Not usable memory */
+			if (start > min_low_pfn && end < max_low_pfn)
+				reserve_bootmem(boot_mem_map.map[i].addr,
+						boot_mem_map.map[i].size,
+						BOOTMEM_DEFAULT);
 			continue;
 		}
 
@@ -706,6 +778,9 @@ static void __init arch_mem_init(char **
 	for_each_memblock(reserved, reg)
 		if (reg->size != 0)
 			reserve_bootmem(reg->base, reg->size, BOOTMEM_DEFAULT);
+
+	reserve_bootmem_region(__pa_symbol(&__nosave_begin),
+			__pa_symbol(&__nosave_end)); /* Reserve for hibernation */
 }
 
 static void __init resource_init(void)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/kernel/signal.c linux-libre-4.4.107-gnu/arch/mips/kernel/signal.c
--- linux-libre-4.4-gnu/arch/mips/kernel/signal.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/kernel/signal.c	2017-12-20 04:05:01.000000000 -0500
@@ -195,6 +195,9 @@ static int restore_msa_extcontext(void _
 	unsigned int csr;
 	int i, err;
 
+	if (!config_enabled(CONFIG_CPU_HAS_MSA))
+		return SIGSYS;
+
 	if (size != sizeof(*msa))
 		return -EINVAL;
 
@@ -398,8 +401,8 @@ int protected_restore_fp_context(void __
 	}
 
 fp_done:
-	if (used & USED_EXTCONTEXT)
-		err |= restore_extcontext(sc_to_extcontext(sc));
+	if (!err && (used & USED_EXTCONTEXT))
+		err = restore_extcontext(sc_to_extcontext(sc));
 
 	return err ?: sig;
 }
@@ -767,15 +770,7 @@ static void handle_signal(struct ksignal
 	sigset_t *oldset = sigmask_to_save();
 	int ret;
 	struct mips_abi *abi = current->thread.abi;
-#ifdef CONFIG_CPU_MICROMIPS
-	void *vdso;
-	unsigned long tmp = (unsigned long)current->mm->context.vdso;
-
-	set_isa16_mode(tmp);
-	vdso = (void *)tmp;
-#else
 	void *vdso = current->mm->context.vdso;
-#endif
 
 	if (regs->regs[0]) {
 		switch(regs->regs[2]) {
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/kernel/smp.c linux-libre-4.4.107-gnu/arch/mips/kernel/smp.c
--- linux-libre-4.4-gnu/arch/mips/kernel/smp.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/kernel/smp.c	2017-12-20 04:05:01.000000000 -0500
@@ -64,6 +64,9 @@ EXPORT_SYMBOL(cpu_sibling_map);
 cpumask_t cpu_core_map[NR_CPUS] __read_mostly;
 EXPORT_SYMBOL(cpu_core_map);
 
+static DECLARE_COMPLETION(cpu_starting);
+static DECLARE_COMPLETION(cpu_running);
+
 /*
  * A logcal cpu mask containing only one VPE per core to
  * reduce the number of IPIs on large MT systems.
@@ -121,6 +124,7 @@ static inline void calculate_cpu_foreign
 	cpumask_t temp_foreign_map;
 
 	/* Re-calculate the mask */
+	cpumask_clear(&temp_foreign_map);
 	for_each_online_cpu(i) {
 		core_present = 0;
 		for_each_cpu(k, &temp_foreign_map)
@@ -173,6 +177,12 @@ asmlinkage void start_secondary(void)
 	cpumask_set_cpu(cpu, &cpu_coherent_mask);
 	notify_cpu_starting(cpu);
 
+	/* Notify boot CPU that we're starting & ready to sync counters */
+	complete(&cpu_starting);
+
+	synchronise_count_slave(cpu);
+
+	/* The CPU is running and counters synchronised, now mark it online */
 	set_cpu_online(cpu, true);
 
 	set_cpu_sibling_map(cpu);
@@ -180,9 +190,11 @@ asmlinkage void start_secondary(void)
 
 	calculate_cpu_foreign_map();
 
-	cpumask_set_cpu(cpu, &cpu_callin_map);
-
-	synchronise_count_slave(cpu);
+	/*
+	 * Notify boot CPU that we're up & online and it can safely return
+	 * from __cpu_up
+	 */
+	complete(&cpu_running);
 
 	/*
 	 * irq will be enabled in ->smp_finish(), enabling it too early
@@ -242,22 +254,23 @@ void smp_prepare_boot_cpu(void)
 {
 	set_cpu_possible(0, true);
 	set_cpu_online(0, true);
-	cpumask_set_cpu(0, &cpu_callin_map);
 }
 
 int __cpu_up(unsigned int cpu, struct task_struct *tidle)
 {
 	mp_ops->boot_secondary(cpu, tidle);
 
-	/*
-	 * Trust is futile.  We should really have timeouts ...
-	 */
-	while (!cpumask_test_cpu(cpu, &cpu_callin_map)) {
-		udelay(100);
-		schedule();
+	/* Wait for CPU to start and be ready to sync counters */
+	if (!wait_for_completion_timeout(&cpu_starting,
+					 msecs_to_jiffies(1000))) {
+		pr_crit("CPU%u: failed to start\n", cpu);
+		return -EIO;
 	}
 
 	synchronise_count_master(cpu);
+
+	/* Wait for CPU to finish startup & mark itself online before return */
+	wait_for_completion(&cpu_running);
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/kernel/syscall.c linux-libre-4.4.107-gnu/arch/mips/kernel/syscall.c
--- linux-libre-4.4-gnu/arch/mips/kernel/syscall.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/kernel/syscall.c	2017-12-20 04:05:01.000000000 -0500
@@ -28,6 +28,7 @@
 #include <linux/elf.h>
 
 #include <asm/asm.h>
+#include <asm/asm-eva.h>
 #include <asm/branch.h>
 #include <asm/cachectl.h>
 #include <asm/cacheflush.h>
@@ -138,10 +139,12 @@ static inline int mips_atomic_set(unsign
 		__asm__ __volatile__ (
 		"	.set	"MIPS_ISA_ARCH_LEVEL"			\n"
 		"	li	%[err], 0				\n"
-		"1:	ll	%[old], (%[addr])			\n"
+		"1:							\n"
+		user_ll("%[old]", "(%[addr])")
 		"	move	%[tmp], %[new]				\n"
-		"2:	sc	%[tmp], (%[addr])			\n"
-		"	bnez	%[tmp], 4f				\n"
+		"2:							\n"
+		user_sc("%[tmp]", "(%[addr])")
+		"	beqz	%[tmp], 4f				\n"
 		"3:							\n"
 		"	.insn						\n"
 		"	.subsection 2					\n"
@@ -199,6 +202,12 @@ static inline int mips_atomic_set(unsign
 	unreachable();
 }
 
+/*
+ * mips_atomic_set() normally returns directly via syscall_exit potentially
+ * clobbering static registers, so be sure to preserve them.
+ */
+save_static_function(sys_sysmips);
+
 SYSCALL_DEFINE3(sysmips, long, cmd, long, arg1, long, arg2)
 {
 	switch (cmd) {
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/kernel/traps.c linux-libre-4.4.107-gnu/arch/mips/kernel/traps.c
--- linux-libre-4.4-gnu/arch/mips/kernel/traps.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/kernel/traps.c	2017-12-20 04:05:01.000000000 -0500
@@ -144,7 +144,7 @@ static void show_backtrace(struct task_s
 	if (!task)
 		task = current;
 
-	if (raw_show_trace || !__kernel_text_address(pc)) {
+	if (raw_show_trace || user_mode(regs) || !__kernel_text_address(pc)) {
 		show_raw_backtrace(sp);
 		return;
 	}
@@ -194,6 +194,8 @@ void show_stack(struct task_struct *task
 {
 	struct pt_regs regs;
 	mm_segment_t old_fs = get_fs();
+
+	regs.cp0_status = KSU_KERNEL;
 	if (sp) {
 		regs.regs[29] = (unsigned long)sp;
 		regs.regs[31] = 0;
@@ -690,15 +692,15 @@ static int simulate_sync(struct pt_regs
 asmlinkage void do_ov(struct pt_regs *regs)
 {
 	enum ctx_state prev_state;
-	siginfo_t info;
+	siginfo_t info = {
+		.si_signo = SIGFPE,
+		.si_code = FPE_INTOVF,
+		.si_addr = (void __user *)regs->cp0_epc,
+	};
 
 	prev_state = exception_enter();
 	die_if_kernel("Integer overflow", regs);
 
-	info.si_code = FPE_INTOVF;
-	info.si_signo = SIGFPE;
-	info.si_errno = 0;
-	info.si_addr = (void __user *) regs->cp0_epc;
 	force_sig_info(SIGFPE, &info, current);
 	exception_exit(prev_state);
 }
@@ -874,7 +876,7 @@ out:
 void do_trap_or_bp(struct pt_regs *regs, unsigned int code,
 	const char *str)
 {
-	siginfo_t info;
+	siginfo_t info = { 0 };
 	char b[40];
 
 #ifdef CONFIG_KGDB_LOW_LEVEL_TRAP
@@ -903,7 +905,6 @@ void do_trap_or_bp(struct pt_regs *regs,
 		else
 			info.si_code = FPE_INTOVF;
 		info.si_signo = SIGFPE;
-		info.si_errno = 0;
 		info.si_addr = (void __user *) regs->cp0_epc;
 		force_sig_info(SIGFPE, &info, current);
 		break;
@@ -1242,7 +1243,7 @@ static int enable_restore_fp_context(int
 		err = init_fpu();
 		if (msa && !err) {
 			enable_msa();
-			_init_msa_upper();
+			init_msa_upper();
 			set_thread_flag(TIF_USEDMSA);
 			set_thread_flag(TIF_MSA_CTX_LIVE);
 		}
@@ -1305,7 +1306,7 @@ static int enable_restore_fp_context(int
 	 */
 	prior_msa = test_and_set_thread_flag(TIF_MSA_CTX_LIVE);
 	if (!prior_msa && was_fpu_owner) {
-		_init_msa_upper();
+		init_msa_upper();
 
 		goto out;
 	}
@@ -1322,7 +1323,7 @@ static int enable_restore_fp_context(int
 		 * of each vector register such that it cannot see data left
 		 * behind by another task.
 		 */
-		_init_msa_upper();
+		init_msa_upper();
 	} else {
 		/* We need to restore the vector context. */
 		restore_msa(current);
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/kernel/unaligned.c linux-libre-4.4.107-gnu/arch/mips/kernel/unaligned.c
--- linux-libre-4.4-gnu/arch/mips/kernel/unaligned.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/kernel/unaligned.c	2017-12-20 04:05:01.000000000 -0500
@@ -885,7 +885,7 @@ static void emulate_load_store_insn(stru
 {
 	union mips_instruction insn;
 	unsigned long value;
-	unsigned int res;
+	unsigned int res, preempted;
 	unsigned long origpc;
 	unsigned long orig31;
 	void __user *fault_addr = NULL;
@@ -1226,27 +1226,36 @@ static void emulate_load_store_insn(stru
 			if (!access_ok(VERIFY_READ, addr, sizeof(*fpr)))
 				goto sigbus;
 
-			/*
-			 * Disable preemption to avoid a race between copying
-			 * state from userland, migrating to another CPU and
-			 * updating the hardware vector register below.
-			 */
-			preempt_disable();
-
-			res = __copy_from_user_inatomic(fpr, addr,
-							sizeof(*fpr));
-			if (res)
-				goto fault;
+			do {
+				/*
+				 * If we have live MSA context keep track of
+				 * whether we get preempted in order to avoid
+				 * the register context we load being clobbered
+				 * by the live context as it's saved during
+				 * preemption. If we don't have live context
+				 * then it can't be saved to clobber the value
+				 * we load.
+				 */
+				preempted = test_thread_flag(TIF_USEDMSA);
 
-			/*
-			 * Update the hardware register if it is in use by the
-			 * task in this quantum, in order to avoid having to
-			 * save & restore the whole vector context.
-			 */
-			if (test_thread_flag(TIF_USEDMSA))
-				write_msa_wr(wd, fpr, df);
+				res = __copy_from_user_inatomic(fpr, addr,
+								sizeof(*fpr));
+				if (res)
+					goto fault;
 
-			preempt_enable();
+				/*
+				 * Update the hardware register if it is in use
+				 * by the task in this quantum, in order to
+				 * avoid having to save & restore the whole
+				 * vector context.
+				 */
+				preempt_disable();
+				if (test_thread_flag(TIF_USEDMSA)) {
+					write_msa_wr(wd, fpr, df);
+					preempted = 0;
+				}
+				preempt_enable();
+			} while (preempted);
 			break;
 
 		case msa_st_op:
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/kernel/uprobes.c linux-libre-4.4.107-gnu/arch/mips/kernel/uprobes.c
--- linux-libre-4.4-gnu/arch/mips/kernel/uprobes.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/kernel/uprobes.c	2017-12-20 04:05:01.000000000 -0500
@@ -157,7 +157,6 @@ bool is_trap_insn(uprobe_opcode_t *insn)
 int arch_uprobe_pre_xol(struct arch_uprobe *aup, struct pt_regs *regs)
 {
 	struct uprobe_task *utask = current->utask;
-	union mips_instruction insn;
 
 	/*
 	 * Now find the EPC where to resume after the breakpoint has been
@@ -168,10 +167,10 @@ int arch_uprobe_pre_xol(struct arch_upro
 		unsigned long epc;
 
 		epc = regs->cp0_epc;
-		__compute_return_epc_for_insn(regs, insn);
+		__compute_return_epc_for_insn(regs,
+			(union mips_instruction) aup->insn[0]);
 		aup->resume_epc = regs->cp0_epc;
 	}
-
 	utask->autask.saved_trap_nr = current->thread.trap_nr;
 	current->thread.trap_nr = UPROBE_TRAP_NR;
 	regs->cp0_epc = current->utask->xol_vaddr;
@@ -257,7 +256,7 @@ unsigned long arch_uretprobe_hijack_retu
 	ra = regs->regs[31];
 
 	/* Replace the return address with the trampoline address */
-	regs->regs[31] = ra;
+	regs->regs[31] = trampoline_vaddr;
 
 	return ra;
 }
@@ -280,24 +279,6 @@ int __weak set_swbp(struct arch_uprobe *
 	return uprobe_write_opcode(mm, vaddr, UPROBE_SWBP_INSN);
 }
 
-/**
- * set_orig_insn - Restore the original instruction.
- * @mm: the probed process address space.
- * @auprobe: arch specific probepoint information.
- * @vaddr: the virtual address to insert the opcode.
- *
- * For mm @mm, restore the original opcode (opcode) at @vaddr.
- * Return 0 (success) or a negative errno.
- *
- * This overrides the weak version in kernel/events/uprobes.c.
- */
-int set_orig_insn(struct arch_uprobe *auprobe, struct mm_struct *mm,
-		 unsigned long vaddr)
-{
-	return uprobe_write_opcode(mm, vaddr,
-			*(uprobe_opcode_t *)&auprobe->orig_inst[0].word);
-}
-
 void __weak arch_uprobe_copy_ixol(struct page *page, unsigned long vaddr,
 				  void *src, unsigned long len)
 {
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/kernel/vdso.c linux-libre-4.4.107-gnu/arch/mips/kernel/vdso.c
--- linux-libre-4.4-gnu/arch/mips/kernel/vdso.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/kernel/vdso.c	2017-12-20 04:05:01.000000000 -0500
@@ -39,16 +39,16 @@ static struct vm_special_mapping vdso_vv
 static void __init init_vdso_image(struct mips_vdso_image *image)
 {
 	unsigned long num_pages, i;
+	unsigned long data_pfn;
 
 	BUG_ON(!PAGE_ALIGNED(image->data));
 	BUG_ON(!PAGE_ALIGNED(image->size));
 
 	num_pages = image->size / PAGE_SIZE;
 
-	for (i = 0; i < num_pages; i++) {
-		image->mapping.pages[i] =
-			virt_to_page(image->data + (i * PAGE_SIZE));
-	}
+	data_pfn = __phys_to_pfn(__pa_symbol(image->data));
+	for (i = 0; i < num_pages; i++)
+		image->mapping.pages[i] = pfn_to_page(data_pfn + i);
 }
 
 static int __init init_vdso(void)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/kernel/vmlinux.lds.S linux-libre-4.4.107-gnu/arch/mips/kernel/vmlinux.lds.S
--- linux-libre-4.4-gnu/arch/mips/kernel/vmlinux.lds.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/kernel/vmlinux.lds.S	2017-12-20 04:05:01.000000000 -0500
@@ -159,7 +159,7 @@ SECTIONS
 	 * Force .bss to 64K alignment so that .bss..swapper_pg_dir
 	 * gets that alignment.	 .sbss should be empty, so there will be
 	 * no holes after __init_end. */
-	BSS_SECTION(0, 0x10000, 0)
+	BSS_SECTION(0, 0x10000, 8)
 
 	_end = . ;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/kernel/watch.c linux-libre-4.4.107-gnu/arch/mips/kernel/watch.c
--- linux-libre-4.4-gnu/arch/mips/kernel/watch.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/kernel/watch.c	2017-12-20 04:05:01.000000000 -0500
@@ -15,10 +15,9 @@
  * Install the watch registers for the current thread.	A maximum of
  * four registers are installed although the machine may have more.
  */
-void mips_install_watch_registers(void)
+void mips_install_watch_registers(struct task_struct *t)
 {
-	struct mips3264_watch_reg_state *watches =
-		&current->thread.watch.mips3264;
+	struct mips3264_watch_reg_state *watches = &t->thread.watch.mips3264;
 	switch (current_cpu_data.watch_reg_use_cnt) {
 	default:
 		BUG();
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/kvm/emulate.c linux-libre-4.4.107-gnu/arch/mips/kvm/emulate.c
--- linux-libre-4.4-gnu/arch/mips/kvm/emulate.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/kvm/emulate.c	2017-12-20 04:05:01.000000000 -0500
@@ -302,12 +302,31 @@ static inline ktime_t kvm_mips_count_tim
  */
 static uint32_t kvm_mips_read_count_running(struct kvm_vcpu *vcpu, ktime_t now)
 {
-	ktime_t expires;
+	struct mips_coproc *cop0 = vcpu->arch.cop0;
+	ktime_t expires, threshold;
+	uint32_t count, compare;
 	int running;
 
-	/* Is the hrtimer pending? */
+	/* Calculate the biased and scaled guest CP0_Count */
+	count = vcpu->arch.count_bias + kvm_mips_ktime_to_count(vcpu, now);
+	compare = kvm_read_c0_guest_compare(cop0);
+
+	/*
+	 * Find whether CP0_Count has reached the closest timer interrupt. If
+	 * not, we shouldn't inject it.
+	 */
+	if ((int32_t)(count - compare) < 0)
+		return count;
+
+	/*
+	 * The CP0_Count we're going to return has already reached the closest
+	 * timer interrupt. Quickly check if it really is a new interrupt by
+	 * looking at whether the interval until the hrtimer expiry time is
+	 * less than 1/4 of the timer period.
+	 */
 	expires = hrtimer_get_expires(&vcpu->arch.comparecount_timer);
-	if (ktime_compare(now, expires) >= 0) {
+	threshold = ktime_add_ns(now, vcpu->arch.count_period / 4);
+	if (ktime_before(expires, threshold)) {
 		/*
 		 * Cancel it while we handle it so there's no chance of
 		 * interference with the timeout handler.
@@ -329,8 +348,7 @@ static uint32_t kvm_mips_read_count_runn
 		}
 	}
 
-	/* Return the biased and scaled guest CP0_Count */
-	return vcpu->arch.count_bias + kvm_mips_ktime_to_count(vcpu, now);
+	return count;
 }
 
 /**
@@ -420,32 +438,6 @@ static void kvm_mips_resume_hrtimer(stru
 }
 
 /**
- * kvm_mips_update_hrtimer() - Update next expiry time of hrtimer.
- * @vcpu:	Virtual CPU.
- *
- * Recalculates and updates the expiry time of the hrtimer. This can be used
- * after timer parameters have been altered which do not depend on the time that
- * the change occurs (in those cases kvm_mips_freeze_hrtimer() and
- * kvm_mips_resume_hrtimer() are used directly).
- *
- * It is guaranteed that no timer interrupts will be lost in the process.
- *
- * Assumes !kvm_mips_count_disabled(@vcpu) (guest CP0_Count timer is running).
- */
-static void kvm_mips_update_hrtimer(struct kvm_vcpu *vcpu)
-{
-	ktime_t now;
-	uint32_t count;
-
-	/*
-	 * freeze_hrtimer takes care of a timer interrupts <= count, and
-	 * resume_hrtimer the hrtimer takes care of a timer interrupts > count.
-	 */
-	now = kvm_mips_freeze_hrtimer(vcpu, &count);
-	kvm_mips_resume_hrtimer(vcpu, now, count);
-}
-
-/**
  * kvm_mips_write_count() - Modify the count and update timer.
  * @vcpu:	Virtual CPU.
  * @count:	Guest CP0_Count value to set.
@@ -540,23 +532,42 @@ int kvm_mips_set_count_hz(struct kvm_vcp
  * kvm_mips_write_compare() - Modify compare and update timer.
  * @vcpu:	Virtual CPU.
  * @compare:	New CP0_Compare value.
+ * @ack:	Whether to acknowledge timer interrupt.
  *
  * Update CP0_Compare to a new value and update the timeout.
+ * If @ack, atomically acknowledge any pending timer interrupt, otherwise ensure
+ * any pending timer interrupt is preserved.
  */
-void kvm_mips_write_compare(struct kvm_vcpu *vcpu, uint32_t compare)
+void kvm_mips_write_compare(struct kvm_vcpu *vcpu, uint32_t compare, bool ack)
 {
 	struct mips_coproc *cop0 = vcpu->arch.cop0;
+	int dc;
+	u32 old_compare = kvm_read_c0_guest_compare(cop0);
+	ktime_t now;
+	uint32_t count;
 
 	/* if unchanged, must just be an ack */
-	if (kvm_read_c0_guest_compare(cop0) == compare)
+	if (old_compare == compare) {
+		if (!ack)
+			return;
+		kvm_mips_callbacks->dequeue_timer_int(vcpu);
+		kvm_write_c0_guest_compare(cop0, compare);
 		return;
+	}
+
+	/* freeze_hrtimer() takes care of timer interrupts <= count */
+	dc = kvm_mips_count_disabled(vcpu);
+	if (!dc)
+		now = kvm_mips_freeze_hrtimer(vcpu, &count);
+
+	if (ack)
+		kvm_mips_callbacks->dequeue_timer_int(vcpu);
 
-	/* Update compare */
 	kvm_write_c0_guest_compare(cop0, compare);
 
-	/* Update timeout if count enabled */
-	if (!kvm_mips_count_disabled(vcpu))
-		kvm_mips_update_hrtimer(vcpu);
+	/* resume_hrtimer() takes care of timer interrupts > count */
+	if (!dc)
+		kvm_mips_resume_hrtimer(vcpu, now, count);
 }
 
 /**
@@ -741,15 +752,15 @@ enum emulation_result kvm_mips_emul_eret
 	struct mips_coproc *cop0 = vcpu->arch.cop0;
 	enum emulation_result er = EMULATE_DONE;
 
-	if (kvm_read_c0_guest_status(cop0) & ST0_EXL) {
+	if (kvm_read_c0_guest_status(cop0) & ST0_ERL) {
+		kvm_clear_c0_guest_status(cop0, ST0_ERL);
+		vcpu->arch.pc = kvm_read_c0_guest_errorepc(cop0);
+	} else if (kvm_read_c0_guest_status(cop0) & ST0_EXL) {
 		kvm_debug("[%#lx] ERET to %#lx\n", vcpu->arch.pc,
 			  kvm_read_c0_guest_epc(cop0));
 		kvm_clear_c0_guest_status(cop0, ST0_EXL);
 		vcpu->arch.pc = kvm_read_c0_guest_epc(cop0);
 
-	} else if (kvm_read_c0_guest_status(cop0) & ST0_ERL) {
-		kvm_clear_c0_guest_status(cop0, ST0_ERL);
-		vcpu->arch.pc = kvm_read_c0_guest_errorepc(cop0);
 	} else {
 		kvm_err("[%#lx] ERET when MIPS_SR_EXL|MIPS_SR_ERL == 0\n",
 			vcpu->arch.pc);
@@ -796,6 +807,47 @@ enum emulation_result kvm_mips_emul_tlbr
 	return EMULATE_FAIL;
 }
 
+/**
+ * kvm_mips_invalidate_guest_tlb() - Indicates a change in guest MMU map.
+ * @vcpu:	VCPU with changed mappings.
+ * @tlb:	TLB entry being removed.
+ *
+ * This is called to indicate a single change in guest MMU mappings, so that we
+ * can arrange TLB flushes on this and other CPUs.
+ */
+static void kvm_mips_invalidate_guest_tlb(struct kvm_vcpu *vcpu,
+					  struct kvm_mips_tlb *tlb)
+{
+	int cpu, i;
+	bool user;
+
+	/* No need to flush for entries which are already invalid */
+	if (!((tlb->tlb_lo0 | tlb->tlb_lo1) & MIPS3_PG_V))
+		return;
+	/* User address space doesn't need flushing for KSeg2/3 changes */
+	user = tlb->tlb_hi < KVM_GUEST_KSEG0;
+
+	preempt_disable();
+
+	/*
+	 * Probe the shadow host TLB for the entry being overwritten, if one
+	 * matches, invalidate it
+	 */
+	kvm_mips_host_tlb_inv(vcpu, tlb->tlb_hi);
+
+	/* Invalidate the whole ASID on other CPUs */
+	cpu = smp_processor_id();
+	for_each_possible_cpu(i) {
+		if (i == cpu)
+			continue;
+		if (user)
+			vcpu->arch.guest_user_asid[i] = 0;
+		vcpu->arch.guest_kernel_asid[i] = 0;
+	}
+
+	preempt_enable();
+}
+
 /* Write Guest TLB Entry @ Index */
 enum emulation_result kvm_mips_emul_tlbwi(struct kvm_vcpu *vcpu)
 {
@@ -815,11 +867,8 @@ enum emulation_result kvm_mips_emul_tlbw
 	}
 
 	tlb = &vcpu->arch.guest_tlb[index];
-	/*
-	 * Probe the shadow host TLB for the entry being overwritten, if one
-	 * matches, invalidate it
-	 */
-	kvm_mips_host_tlb_inv(vcpu, tlb->tlb_hi);
+
+	kvm_mips_invalidate_guest_tlb(vcpu, tlb);
 
 	tlb->tlb_mask = kvm_read_c0_guest_pagemask(cop0);
 	tlb->tlb_hi = kvm_read_c0_guest_entryhi(cop0);
@@ -848,11 +897,7 @@ enum emulation_result kvm_mips_emul_tlbw
 
 	tlb = &vcpu->arch.guest_tlb[index];
 
-	/*
-	 * Probe the shadow host TLB for the entry being overwritten, if one
-	 * matches, invalidate it
-	 */
-	kvm_mips_host_tlb_inv(vcpu, tlb->tlb_hi);
+	kvm_mips_invalidate_guest_tlb(vcpu, tlb);
 
 	tlb->tlb_mask = kvm_read_c0_guest_pagemask(cop0);
 	tlb->tlb_hi = kvm_read_c0_guest_entryhi(cop0);
@@ -971,6 +1016,7 @@ enum emulation_result kvm_mips_emulate_C
 	int32_t rt, rd, copz, sel, co_bit, op;
 	uint32_t pc = vcpu->arch.pc;
 	unsigned long curr_pc;
+	int cpu, i;
 
 	/*
 	 * Update PC and hold onto current PC in case there is
@@ -1078,8 +1124,16 @@ enum emulation_result kvm_mips_emulate_C
 						vcpu->arch.gprs[rt]
 						& ASID_MASK);
 
+					preempt_disable();
 					/* Blow away the shadow host TLBs */
 					kvm_mips_flush_host_tlb(1);
+					cpu = smp_processor_id();
+					for_each_possible_cpu(i)
+						if (i != cpu) {
+							vcpu->arch.guest_user_asid[i] = 0;
+							vcpu->arch.guest_kernel_asid[i] = 0;
+						}
+					preempt_enable();
 				}
 				kvm_write_c0_guest_entryhi(cop0,
 							   vcpu->arch.gprs[rt]);
@@ -1095,9 +1149,9 @@ enum emulation_result kvm_mips_emulate_C
 
 				/* If we are writing to COMPARE */
 				/* Clear pending timer interrupt, if any */
-				kvm_mips_callbacks->dequeue_timer_int(vcpu);
 				kvm_mips_write_compare(vcpu,
-						       vcpu->arch.gprs[rt]);
+						       vcpu->arch.gprs[rt],
+						       true);
 			} else if ((rd == MIPS_CP0_STATUS) && (sel == 0)) {
 				unsigned int old_val, val, change;
 
@@ -1419,6 +1473,7 @@ enum emulation_result kvm_mips_emulate_l
 					    struct kvm_vcpu *vcpu)
 {
 	enum emulation_result er = EMULATE_DO_MMIO;
+	unsigned long curr_pc;
 	int32_t op, base, rt, offset;
 	uint32_t bytes;
 
@@ -1427,7 +1482,18 @@ enum emulation_result kvm_mips_emulate_l
 	offset = inst & 0xffff;
 	op = (inst >> 26) & 0x3f;
 
-	vcpu->arch.pending_load_cause = cause;
+	/*
+	 * Find the resume PC now while we have safe and easy access to the
+	 * prior branch instruction, and save it for
+	 * kvm_mips_complete_mmio_load() to restore later.
+	 */
+	curr_pc = vcpu->arch.pc;
+	er = update_pc(vcpu, cause);
+	if (er == EMULATE_FAIL)
+		return er;
+	vcpu->arch.io_pc = vcpu->arch.pc;
+	vcpu->arch.pc = curr_pc;
+
 	vcpu->arch.io_gpr = rt;
 
 	switch (op) {
@@ -1618,8 +1684,14 @@ enum emulation_result kvm_mips_emulate_c
 
 	preempt_disable();
 	if (KVM_GUEST_KSEGX(va) == KVM_GUEST_KSEG0) {
-		if (kvm_mips_host_tlb_lookup(vcpu, va) < 0)
-			kvm_mips_handle_kseg0_tlb_fault(va, vcpu);
+		if (kvm_mips_host_tlb_lookup(vcpu, va) < 0 &&
+		    kvm_mips_handle_kseg0_tlb_fault(va, vcpu)) {
+			kvm_err("%s: handling mapped kseg0 tlb fault for %lx, vcpu: %p, ASID: %#lx\n",
+				__func__, va, vcpu, read_c0_entryhi());
+			er = EMULATE_FAIL;
+			preempt_enable();
+			goto done;
+		}
 	} else if ((KVM_GUEST_KSEGX(va) < KVM_GUEST_KSEG0) ||
 		   KVM_GUEST_KSEGX(va) == KVM_GUEST_KSEG23) {
 		int index;
@@ -1654,14 +1726,19 @@ enum emulation_result kvm_mips_emulate_c
 								run, vcpu);
 				preempt_enable();
 				goto dont_update_pc;
-			} else {
-				/*
-				 * We fault an entry from the guest tlb to the
-				 * shadow host TLB
-				 */
-				kvm_mips_handle_mapped_seg_tlb_fault(vcpu, tlb,
-								     NULL,
-								     NULL);
+			}
+			/*
+			 * We fault an entry from the guest tlb to the
+			 * shadow host TLB
+			 */
+			if (kvm_mips_handle_mapped_seg_tlb_fault(vcpu, tlb,
+								 NULL, NULL)) {
+				kvm_err("%s: handling mapped seg tlb fault for %lx, index: %u, vcpu: %p, ASID: %#lx\n",
+					__func__, va, index, vcpu,
+					read_c0_entryhi());
+				er = EMULATE_FAIL;
+				preempt_enable();
+				goto done;
 			}
 		}
 	} else {
@@ -2396,9 +2473,8 @@ enum emulation_result kvm_mips_complete_
 		goto done;
 	}
 
-	er = update_pc(vcpu, vcpu->arch.pending_load_cause);
-	if (er == EMULATE_FAIL)
-		return er;
+	/* Restore saved resume PC */
+	vcpu->arch.pc = vcpu->arch.io_pc;
 
 	switch (run->mmio.len) {
 	case 4:
@@ -2420,11 +2496,6 @@ enum emulation_result kvm_mips_complete_
 		break;
 	}
 
-	if (vcpu->arch.pending_load_cause & CAUSEF_BD)
-		kvm_debug("[%#lx] Completing %d byte BD Load to gpr %d (0x%08lx) type %d\n",
-			  vcpu->arch.pc, run->mmio.len, vcpu->arch.io_gpr, *gpr,
-			  vcpu->mmio_needed);
-
 done:
 	return er;
 }
@@ -2622,8 +2693,13 @@ enum emulation_result kvm_mips_handle_tl
 			 * OK we have a Guest TLB entry, now inject it into the
 			 * shadow host TLB
 			 */
-			kvm_mips_handle_mapped_seg_tlb_fault(vcpu, tlb, NULL,
-							     NULL);
+			if (kvm_mips_handle_mapped_seg_tlb_fault(vcpu, tlb,
+								 NULL, NULL)) {
+				kvm_err("%s: handling mapped seg tlb fault for %lx, index: %u, vcpu: %p, ASID: %#lx\n",
+					__func__, va, index, vcpu,
+					read_c0_entryhi());
+				er = EMULATE_FAIL;
+			}
 		}
 	}
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/kvm/interrupt.h linux-libre-4.4.107-gnu/arch/mips/kvm/interrupt.h
--- linux-libre-4.4-gnu/arch/mips/kvm/interrupt.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/kvm/interrupt.h	2017-12-20 04:05:01.000000000 -0500
@@ -28,6 +28,7 @@
 #define MIPS_EXC_MAX                12
 /* XXXSL More to follow */
 
+extern char __kvm_mips_vcpu_run_end[];
 extern char mips32_exception[], mips32_exceptionEnd[];
 extern char mips32_GuestException[], mips32_GuestExceptionEnd[];
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/kvm/locore.S linux-libre-4.4.107-gnu/arch/mips/kvm/locore.S
--- linux-libre-4.4-gnu/arch/mips/kvm/locore.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/kvm/locore.S	2017-12-20 04:05:01.000000000 -0500
@@ -227,6 +227,7 @@ FEXPORT(__kvm_mips_load_k0k1)
 
 	/* Jump to guest */
 	eret
+EXPORT(__kvm_mips_vcpu_run_end)
 
 VECTOR(MIPSX(exception), unknown)
 /* Find out what mode we came from and jump to the proper handler. */
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/kvm/mips.c linux-libre-4.4.107-gnu/arch/mips/kvm/mips.c
--- linux-libre-4.4-gnu/arch/mips/kvm/mips.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/kvm/mips.c	2017-12-20 04:05:01.000000000 -0500
@@ -314,9 +314,18 @@ struct kvm_vcpu *kvm_arch_vcpu_create(st
 	memcpy(gebase + offset, mips32_GuestException,
 	       mips32_GuestExceptionEnd - mips32_GuestException);
 
+#ifdef MODULE
+	offset += mips32_GuestExceptionEnd - mips32_GuestException;
+	memcpy(gebase + offset, (char *)__kvm_mips_vcpu_run,
+	       __kvm_mips_vcpu_run_end - (char *)__kvm_mips_vcpu_run);
+	vcpu->arch.vcpu_run = gebase + offset;
+#else
+	vcpu->arch.vcpu_run = __kvm_mips_vcpu_run;
+#endif
+
 	/* Invalidate the icache for these ranges */
-	local_flush_icache_range((unsigned long)gebase,
-				(unsigned long)gebase + ALIGN(size, PAGE_SIZE));
+	flush_icache_range((unsigned long)gebase,
+			   (unsigned long)gebase + ALIGN(size, PAGE_SIZE));
 
 	/*
 	 * Allocate comm page for guest kernel, a TLB will be reserved for
@@ -403,7 +412,7 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_v
 	/* Disable hardware page table walking while in guest */
 	htw_stop();
 
-	r = __kvm_mips_vcpu_run(run, vcpu);
+	r = vcpu->arch.vcpu_run(run, vcpu);
 
 	/* Re-enable HTW before enabling interrupts */
 	htw_start();
@@ -702,7 +711,7 @@ static int kvm_mips_get_reg(struct kvm_v
 	} else if ((reg->id & KVM_REG_SIZE_MASK) == KVM_REG_SIZE_U128) {
 		void __user *uaddr = (void __user *)(long)reg->addr;
 
-		return copy_to_user(uaddr, vs, 16);
+		return copy_to_user(uaddr, vs, 16) ? -EFAULT : 0;
 	} else {
 		return -EINVAL;
 	}
@@ -732,7 +741,7 @@ static int kvm_mips_set_reg(struct kvm_v
 	} else if ((reg->id & KVM_REG_SIZE_MASK) == KVM_REG_SIZE_U128) {
 		void __user *uaddr = (void __user *)(long)reg->addr;
 
-		return copy_from_user(vs, uaddr, 16);
+		return copy_from_user(vs, uaddr, 16) ? -EFAULT : 0;
 	} else {
 		return -EINVAL;
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/kvm/tlb.c linux-libre-4.4.107-gnu/arch/mips/kvm/tlb.c
--- linux-libre-4.4-gnu/arch/mips/kvm/tlb.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/kvm/tlb.c	2017-12-20 04:05:01.000000000 -0500
@@ -152,7 +152,7 @@ static int kvm_mips_map_page(struct kvm
 	srcu_idx = srcu_read_lock(&kvm->srcu);
 	pfn = kvm_mips_gfn_to_pfn(kvm, gfn);
 
-	if (kvm_mips_is_error_pfn(pfn)) {
+	if (is_error_noslot_pfn(pfn)) {
 		kvm_err("Couldn't get pfn for gfn %#" PRIx64 "!\n", gfn);
 		err = -EFAULT;
 		goto out;
@@ -276,7 +276,7 @@ int kvm_mips_handle_kseg0_tlb_fault(unsi
 	}
 
 	gfn = (KVM_GUEST_CPHYSADDR(badvaddr) >> PAGE_SHIFT);
-	if (gfn >= kvm->arch.guest_pmap_npages) {
+	if ((gfn | 1) >= kvm->arch.guest_pmap_npages) {
 		kvm_err("%s: Invalid gfn: %#llx, BadVaddr: %#lx\n", __func__,
 			gfn, badvaddr);
 		kvm_mips_dump_host_tlbs();
@@ -361,25 +361,39 @@ int kvm_mips_handle_mapped_seg_tlb_fault
 	unsigned long entryhi = 0, entrylo0 = 0, entrylo1 = 0;
 	struct kvm *kvm = vcpu->kvm;
 	pfn_t pfn0, pfn1;
+	gfn_t gfn0, gfn1;
+	long tlb_lo[2];
 
-	if ((tlb->tlb_hi & VPN2_MASK) == 0) {
-		pfn0 = 0;
-		pfn1 = 0;
-	} else {
-		if (kvm_mips_map_page(kvm, mips3_tlbpfn_to_paddr(tlb->tlb_lo0)
-					   >> PAGE_SHIFT) < 0)
-			return -1;
+	tlb_lo[0] = tlb->tlb_lo0;
+	tlb_lo[1] = tlb->tlb_lo1;
 
-		if (kvm_mips_map_page(kvm, mips3_tlbpfn_to_paddr(tlb->tlb_lo1)
-					   >> PAGE_SHIFT) < 0)
-			return -1;
+	/*
+	 * The commpage address must not be mapped to anything else if the guest
+	 * TLB contains entries nearby, or commpage accesses will break.
+	 */
+	if (!((tlb->tlb_hi ^ KVM_GUEST_COMMPAGE_ADDR) &
+			VPN2_MASK & (PAGE_MASK << 1)))
+		tlb_lo[(KVM_GUEST_COMMPAGE_ADDR >> PAGE_SHIFT) & 1] = 0;
 
-		pfn0 = kvm->arch.guest_pmap[mips3_tlbpfn_to_paddr(tlb->tlb_lo0)
-					    >> PAGE_SHIFT];
-		pfn1 = kvm->arch.guest_pmap[mips3_tlbpfn_to_paddr(tlb->tlb_lo1)
-					    >> PAGE_SHIFT];
+	gfn0 = mips3_tlbpfn_to_paddr(tlb_lo[0]) >> PAGE_SHIFT;
+	gfn1 = mips3_tlbpfn_to_paddr(tlb_lo[1]) >> PAGE_SHIFT;
+	if (gfn0 >= kvm->arch.guest_pmap_npages ||
+	    gfn1 >= kvm->arch.guest_pmap_npages) {
+		kvm_err("%s: Invalid gfn: [%#llx, %#llx], EHi: %#lx\n",
+			__func__, gfn0, gfn1, tlb->tlb_hi);
+		kvm_mips_dump_guest_tlbs(vcpu);
+		return -1;
 	}
 
+	if (kvm_mips_map_page(kvm, gfn0) < 0)
+		return -1;
+
+	if (kvm_mips_map_page(kvm, gfn1) < 0)
+		return -1;
+
+	pfn0 = kvm->arch.guest_pmap[gfn0];
+	pfn1 = kvm->arch.guest_pmap[gfn1];
+
 	if (hpa0)
 		*hpa0 = pfn0 << PAGE_SHIFT;
 
@@ -391,9 +405,9 @@ int kvm_mips_handle_mapped_seg_tlb_fault
 					       kvm_mips_get_kernel_asid(vcpu) :
 					       kvm_mips_get_user_asid(vcpu));
 	entrylo0 = mips3_paddr_to_tlbpfn(pfn0 << PAGE_SHIFT) | (0x3 << 3) |
-		   (tlb->tlb_lo0 & MIPS3_PG_D) | (tlb->tlb_lo0 & MIPS3_PG_V);
+		   (tlb_lo[0] & MIPS3_PG_D) | (tlb_lo[0] & MIPS3_PG_V);
 	entrylo1 = mips3_paddr_to_tlbpfn(pfn1 << PAGE_SHIFT) | (0x3 << 3) |
-		   (tlb->tlb_lo1 & MIPS3_PG_D) | (tlb->tlb_lo1 & MIPS3_PG_V);
+		   (tlb_lo[1] & MIPS3_PG_D) | (tlb_lo[1] & MIPS3_PG_V);
 
 	kvm_debug("@ %#lx tlb_lo0: 0x%08lx tlb_lo1: 0x%08lx\n", vcpu->arch.pc,
 		  tlb->tlb_lo0, tlb->tlb_lo1);
@@ -794,10 +808,16 @@ uint32_t kvm_get_inst(uint32_t *opc, str
 				local_irq_restore(flags);
 				return KVM_INVALID_INST;
 			}
-			kvm_mips_handle_mapped_seg_tlb_fault(vcpu,
-							     &vcpu->arch.
-							     guest_tlb[index],
-							     NULL, NULL);
+			if (kvm_mips_handle_mapped_seg_tlb_fault(vcpu,
+						&vcpu->arch.guest_tlb[index],
+						NULL, NULL)) {
+				kvm_err("%s: handling mapped seg tlb fault failed for %p, index: %u, vcpu: %p, ASID: %#lx\n",
+					__func__, opc, index, vcpu,
+					read_c0_entryhi());
+				kvm_mips_dump_guest_tlbs(vcpu);
+				local_irq_restore(flags);
+				return KVM_INVALID_INST;
+			}
 			inst = *(opc);
 		}
 		local_irq_restore(flags);
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/kvm/trap_emul.c linux-libre-4.4.107-gnu/arch/mips/kvm/trap_emul.c
--- linux-libre-4.4-gnu/arch/mips/kvm/trap_emul.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/kvm/trap_emul.c	2017-12-20 04:05:01.000000000 -0500
@@ -547,7 +547,7 @@ static int kvm_trap_emul_set_one_reg(str
 		kvm_mips_write_count(vcpu, v);
 		break;
 	case KVM_REG_MIPS_CP0_COMPARE:
-		kvm_mips_write_compare(vcpu, v);
+		kvm_mips_write_compare(vcpu, v, false);
 		break;
 	case KVM_REG_MIPS_CP0_CAUSE:
 		/*
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/lantiq/xway/sysctrl.c linux-libre-4.4.107-gnu/arch/mips/lantiq/xway/sysctrl.c
--- linux-libre-4.4-gnu/arch/mips/lantiq/xway/sysctrl.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/lantiq/xway/sysctrl.c	2017-12-20 04:05:01.000000000 -0500
@@ -467,10 +467,10 @@ void __init ltq_soc_init(void)
 
 		if (!np_xbar)
 			panic("Failed to load xbar nodes from devicetree");
-		if (of_address_to_resource(np_pmu, 0, &res_xbar))
+		if (of_address_to_resource(np_xbar, 0, &res_xbar))
 			panic("Failed to get xbar resources");
-		if (request_mem_region(res_xbar.start, resource_size(&res_xbar),
-			res_xbar.name) < 0)
+		if (!request_mem_region(res_xbar.start, resource_size(&res_xbar),
+			res_xbar.name))
 			panic("Failed to get xbar resources");
 
 		ltq_xbar_membase = ioremap_nocache(res_xbar.start,
@@ -545,7 +545,7 @@ void __init ltq_soc_init(void)
 		clkdev_add_pmu("1a800000.pcie", "msi", 1, 1, PMU1_PCIE2_MSI);
 		clkdev_add_pmu("1a800000.pcie", "pdi", 1, 1, PMU1_PCIE2_PDI);
 		clkdev_add_pmu("1a800000.pcie", "ctl", 1, 1, PMU1_PCIE2_CTL);
-		clkdev_add_pmu("1e108000.eth", NULL, 1, 0, PMU_SWITCH | PMU_PPE_DP);
+		clkdev_add_pmu("1e108000.eth", NULL, 0, 0, PMU_SWITCH | PMU_PPE_DP);
 		clkdev_add_pmu("1da00000.usif", "NULL", 1, 0, PMU_USIF);
 		clkdev_add_pmu("1e103100.deu", NULL, 1, 0, PMU_DEU);
 	} else if (of_machine_is_compatible("lantiq,ar10")) {
@@ -553,7 +553,7 @@ void __init ltq_soc_init(void)
 				  ltq_ar10_fpi_hz(), ltq_ar10_pp32_hz());
 		clkdev_add_pmu("1e101000.usb", "ctl", 1, 0, PMU_USB0);
 		clkdev_add_pmu("1e106000.usb", "ctl", 1, 0, PMU_USB1);
-		clkdev_add_pmu("1e108000.eth", NULL, 1, 0, PMU_SWITCH |
+		clkdev_add_pmu("1e108000.eth", NULL, 0, 0, PMU_SWITCH |
 			       PMU_PPE_DP | PMU_PPE_TC);
 		clkdev_add_pmu("1da00000.usif", "NULL", 1, 0, PMU_USIF);
 		clkdev_add_pmu("1f203000.rcu", "gphy", 1, 0, PMU_GPHY);
@@ -575,11 +575,11 @@ void __init ltq_soc_init(void)
 		clkdev_add_pmu(NULL, "ahb", 1, 0, PMU_AHBM | PMU_AHBS);
 
 		clkdev_add_pmu("1da00000.usif", "NULL", 1, 0, PMU_USIF);
-		clkdev_add_pmu("1e108000.eth", NULL, 1, 0,
+		clkdev_add_pmu("1e108000.eth", NULL, 0, 0,
 				PMU_SWITCH | PMU_PPE_DPLUS | PMU_PPE_DPLUM |
 				PMU_PPE_EMA | PMU_PPE_TC | PMU_PPE_SLL01 |
 				PMU_PPE_QSB | PMU_PPE_TOP);
-		clkdev_add_pmu("1f203000.rcu", "gphy", 1, 0, PMU_GPHY);
+		clkdev_add_pmu("1f203000.rcu", "gphy", 0, 0, PMU_GPHY);
 		clkdev_add_pmu("1e103000.sdio", NULL, 1, 0, PMU_SDIO);
 		clkdev_add_pmu("1e103100.deu", NULL, 1, 0, PMU_DEU);
 		clkdev_add_pmu("1e116000.mei", "dfe", 1, 0, PMU_DFE);
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/lib/ashldi3.c linux-libre-4.4.107-gnu/arch/mips/lib/ashldi3.c
--- linux-libre-4.4-gnu/arch/mips/lib/ashldi3.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/lib/ashldi3.c	2017-12-20 04:05:01.000000000 -0500
@@ -2,7 +2,7 @@
 
 #include "libgcc.h"
 
-long long __ashldi3(long long u, word_type b)
+long long notrace __ashldi3(long long u, word_type b)
 {
 	DWunion uu, w;
 	word_type bm;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/lib/ashrdi3.c linux-libre-4.4.107-gnu/arch/mips/lib/ashrdi3.c
--- linux-libre-4.4-gnu/arch/mips/lib/ashrdi3.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/lib/ashrdi3.c	2017-12-20 04:05:01.000000000 -0500
@@ -2,7 +2,7 @@
 
 #include "libgcc.h"
 
-long long __ashrdi3(long long u, word_type b)
+long long notrace __ashrdi3(long long u, word_type b)
 {
 	DWunion uu, w;
 	word_type bm;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/lib/bswapdi.c linux-libre-4.4.107-gnu/arch/mips/lib/bswapdi.c
--- linux-libre-4.4-gnu/arch/mips/lib/bswapdi.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/lib/bswapdi.c	2017-12-20 04:05:01.000000000 -0500
@@ -1,6 +1,6 @@
 #include <linux/module.h>
 
-unsigned long long __bswapdi2(unsigned long long u)
+unsigned long long notrace __bswapdi2(unsigned long long u)
 {
 	return (((u) & 0xff00000000000000ull) >> 56) |
 	       (((u) & 0x00ff000000000000ull) >> 40) |
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/lib/bswapsi.c linux-libre-4.4.107-gnu/arch/mips/lib/bswapsi.c
--- linux-libre-4.4-gnu/arch/mips/lib/bswapsi.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/lib/bswapsi.c	2017-12-20 04:05:01.000000000 -0500
@@ -1,6 +1,6 @@
 #include <linux/module.h>
 
-unsigned int __bswapsi2(unsigned int u)
+unsigned int notrace __bswapsi2(unsigned int u)
 {
 	return (((u) & 0xff000000) >> 24) |
 	       (((u) & 0x00ff0000) >>  8) |
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/lib/cmpdi2.c linux-libre-4.4.107-gnu/arch/mips/lib/cmpdi2.c
--- linux-libre-4.4-gnu/arch/mips/lib/cmpdi2.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/lib/cmpdi2.c	2017-12-20 04:05:01.000000000 -0500
@@ -2,7 +2,7 @@
 
 #include "libgcc.h"
 
-word_type __cmpdi2(long long a, long long b)
+word_type notrace __cmpdi2(long long a, long long b)
 {
 	const DWunion au = {
 		.ll = a
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/lib/lshrdi3.c linux-libre-4.4.107-gnu/arch/mips/lib/lshrdi3.c
--- linux-libre-4.4-gnu/arch/mips/lib/lshrdi3.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/lib/lshrdi3.c	2017-12-20 04:05:01.000000000 -0500
@@ -2,7 +2,7 @@
 
 #include "libgcc.h"
 
-long long __lshrdi3(long long u, word_type b)
+long long notrace __lshrdi3(long long u, word_type b)
 {
 	DWunion uu, w;
 	word_type bm;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/lib/ucmpdi2.c linux-libre-4.4.107-gnu/arch/mips/lib/ucmpdi2.c
--- linux-libre-4.4-gnu/arch/mips/lib/ucmpdi2.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/lib/ucmpdi2.c	2017-12-20 04:05:01.000000000 -0500
@@ -2,7 +2,7 @@
 
 #include "libgcc.h"
 
-word_type __ucmpdi2(unsigned long long a, unsigned long long b)
+word_type notrace __ucmpdi2(unsigned long long a, unsigned long long b)
 {
 	const DWunion au = {.ll = a};
 	const DWunion bu = {.ll = b};
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/loongson64/loongson-3/hpet.c linux-libre-4.4.107-gnu/arch/mips/loongson64/loongson-3/hpet.c
--- linux-libre-4.4-gnu/arch/mips/loongson64/loongson-3/hpet.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/loongson64/loongson-3/hpet.c	2017-12-20 04:05:01.000000000 -0500
@@ -13,6 +13,9 @@
 #define SMBUS_PCI_REG64		0x64
 #define SMBUS_PCI_REGB4		0xb4
 
+#define HPET_MIN_CYCLES		16
+#define HPET_MIN_PROG_DELTA	(HPET_MIN_CYCLES * 12)
+
 static DEFINE_SPINLOCK(hpet_lock);
 DEFINE_PER_CPU(struct clock_event_device, hpet_clockevent_device);
 
@@ -154,15 +157,16 @@ static int hpet_tick_resume(struct clock
 static int hpet_next_event(unsigned long delta,
 		struct clock_event_device *evt)
 {
-	unsigned int cnt;
-	int res;
+	u32 cnt;
+	s32 res;
 
 	cnt = hpet_read(HPET_COUNTER);
-	cnt += delta;
+	cnt += (u32) delta;
 	hpet_write(HPET_T0_CMP, cnt);
 
-	res = ((int)(hpet_read(HPET_COUNTER) - cnt) > 0) ? -ETIME : 0;
-	return res;
+	res = (s32)(cnt - hpet_read(HPET_COUNTER));
+
+	return res < HPET_MIN_CYCLES ? -ETIME : 0;
 }
 
 static irqreturn_t hpet_irq_handler(int irq, void *data)
@@ -226,7 +230,7 @@ void __init setup_hpet_timer(void)
 
 	cd = &per_cpu(hpet_clockevent_device, cpu);
 	cd->name = "hpet";
-	cd->rating = 320;
+	cd->rating = 100;
 	cd->features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT;
 	cd->set_state_shutdown = hpet_set_state_shutdown;
 	cd->set_state_periodic = hpet_set_state_periodic;
@@ -237,7 +241,7 @@ void __init setup_hpet_timer(void)
 	cd->cpumask = cpumask_of(cpu);
 	clockevent_set_clock(cd, HPET_FREQ);
 	cd->max_delta_ns = clockevent_delta2ns(0x7fffffff, cd);
-	cd->min_delta_ns = 5000;
+	cd->min_delta_ns = clockevent_delta2ns(HPET_MIN_PROG_DELTA, cd);
 
 	clockevents_register_device(cd);
 	setup_irq(HPET_T0_IRQ, &hpet_irq);
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/loongson64/loongson-3/numa.c linux-libre-4.4.107-gnu/arch/mips/loongson64/loongson-3/numa.c
--- linux-libre-4.4-gnu/arch/mips/loongson64/loongson-3/numa.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/loongson64/loongson-3/numa.c	2017-12-20 04:05:01.000000000 -0500
@@ -213,10 +213,10 @@ static void __init node_mem_init(unsigne
 		BOOTMEM_DEFAULT);
 
 	if (node == 0 && node_end_pfn(0) >= (0xffffffff >> PAGE_SHIFT)) {
-		/* Reserve 0xff800000~0xffffffff for RS780E integrated GPU */
+		/* Reserve 0xfe000000~0xffffffff for RS780E integrated GPU */
 		reserve_bootmem_node(NODE_DATA(node),
-				(node_addrspace_offset | 0xff800000),
-				8 << 20, BOOTMEM_DEFAULT);
+				(node_addrspace_offset | 0xfe000000),
+				32 << 20, BOOTMEM_DEFAULT);
 	}
 
 	sparse_memory_present_with_active_regions(node);
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/loongson64/loongson-3/smp.c linux-libre-4.4.107-gnu/arch/mips/loongson64/loongson-3/smp.c
--- linux-libre-4.4-gnu/arch/mips/loongson64/loongson-3/smp.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/loongson64/loongson-3/smp.c	2017-12-20 04:05:01.000000000 -0500
@@ -30,13 +30,13 @@
 #include "smp.h"
 
 DEFINE_PER_CPU(int, cpu_state);
-DEFINE_PER_CPU(uint32_t, core0_c0count);
 
 static void *ipi_set0_regs[16];
 static void *ipi_clear0_regs[16];
 static void *ipi_status0_regs[16];
 static void *ipi_en0_regs[16];
 static void *ipi_mailbox_buf[16];
+static uint32_t core0_c0count[NR_CPUS];
 
 /* read a 32bit value from ipi register */
 #define loongson3_ipi_read32(addr) readl(addr)
@@ -275,12 +275,14 @@ void loongson3_ipi_interrupt(struct pt_r
 	if (action & SMP_ASK_C0COUNT) {
 		BUG_ON(cpu != 0);
 		c0count = read_c0_count();
-		for (i = 1; i < num_possible_cpus(); i++)
-			per_cpu(core0_c0count, i) = c0count;
+		c0count = c0count ? c0count : 1;
+		for (i = 1; i < nr_cpu_ids; i++)
+			core0_c0count[i] = c0count;
+		__wbflush(); /* Let others see the result ASAP */
 	}
 }
 
-#define MAX_LOOPS 1111
+#define MAX_LOOPS 800
 /*
  * SMP init and finish on secondary CPUs
  */
@@ -305,16 +307,20 @@ static void loongson3_init_secondary(voi
 		cpu_logical_map(cpu) / loongson_sysconf.cores_per_package;
 
 	i = 0;
-	__this_cpu_write(core0_c0count, 0);
+	core0_c0count[cpu] = 0;
 	loongson3_send_ipi_single(0, SMP_ASK_C0COUNT);
-	while (!__this_cpu_read(core0_c0count)) {
+	while (!core0_c0count[cpu]) {
 		i++;
 		cpu_relax();
 	}
 
 	if (i > MAX_LOOPS)
 		i = MAX_LOOPS;
-	initcount = __this_cpu_read(core0_c0count) + i;
+	if (cpu_data[cpu].package)
+		initcount = core0_c0count[cpu] + i;
+	else /* Local access is faster for loops */
+		initcount = core0_c0count[cpu] + i/2;
+
 	write_c0_count(initcount);
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/Makefile linux-libre-4.4.107-gnu/arch/mips/Makefile
--- linux-libre-4.4-gnu/arch/mips/Makefile	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/Makefile	2017-12-20 04:05:01.000000000 -0500
@@ -204,10 +204,6 @@ toolchain-msa				:= $(call cc-option-yn,
 cflags-$(toolchain-msa)			+= -DTOOLCHAIN_SUPPORTS_MSA
 endif
 
-cflags-$(CONFIG_MIPS_COMPACT_BRANCHES_NEVER)	+= -mcompact-branches=never
-cflags-$(CONFIG_MIPS_COMPACT_BRANCHES_OPTIMAL)	+= -mcompact-branches=optimal
-cflags-$(CONFIG_MIPS_COMPACT_BRANCHES_ALWAYS)	+= -mcompact-branches=always
-
 #
 # Firmware support
 #
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/math-emu/cp1emu.c linux-libre-4.4.107-gnu/arch/mips/math-emu/cp1emu.c
--- linux-libre-4.4-gnu/arch/mips/math-emu/cp1emu.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/math-emu/cp1emu.c	2017-12-20 04:05:01.000000000 -0500
@@ -445,9 +445,11 @@ static int isBranchInstr(struct pt_regs
 	case spec_op:
 		switch (insn.r_format.func) {
 		case jalr_op:
-			regs->regs[insn.r_format.rd] =
-				regs->cp0_epc + dec_insn.pc_inc +
-				dec_insn.next_pc_inc;
+			if (insn.r_format.rd != 0) {
+				regs->regs[insn.r_format.rd] =
+					regs->cp0_epc + dec_insn.pc_inc +
+					dec_insn.next_pc_inc;
+			}
 			/* Fall through */
 		case jr_op:
 			/* For R6, JR already emulated in jalr_op */
@@ -2358,7 +2360,6 @@ dcopuop:
 					break;
 				default:
 					/* Reserved R6 ops */
-					pr_err("Reserved MIPS R6 CMP.condn.S operation\n");
 					return SIGILL;
 				}
 			}
@@ -2432,7 +2433,6 @@ dcopuop:
 					break;
 				default:
 					/* Reserved R6 ops */
-					pr_err("Reserved MIPS R6 CMP.condn.D operation\n");
 					return SIGILL;
 				}
 			}
@@ -2494,6 +2494,35 @@ dcopuop:
 	return 0;
 }
 
+/*
+ * Emulate FPU instructions.
+ *
+ * If we use FPU hardware, then we have been typically called to handle
+ * an unimplemented operation, such as where an operand is a NaN or
+ * denormalized.  In that case exit the emulation loop after a single
+ * iteration so as to let hardware execute any subsequent instructions.
+ *
+ * If we have no FPU hardware or it has been disabled, then continue
+ * emulating floating-point instructions until one of these conditions
+ * has occurred:
+ *
+ * - a non-FPU instruction has been encountered,
+ *
+ * - an attempt to emulate has ended with a signal,
+ *
+ * - the ISA mode has been switched.
+ *
+ * We need to terminate the emulation loop if we got switched to the
+ * MIPS16 mode, whether supported or not, so that we do not attempt
+ * to emulate a MIPS16 instruction as a regular MIPS FPU instruction.
+ * Similarly if we got switched to the microMIPS mode and only the
+ * regular MIPS mode is supported, so that we do not attempt to emulate
+ * a microMIPS instruction as a regular MIPS FPU instruction.  Or if
+ * we got switched to the regular MIPS mode and only the microMIPS mode
+ * is supported, so that we do not attempt to emulate a regular MIPS
+ * instruction that should cause an Address Error exception instead.
+ * For simplicity we always terminate upon an ISA mode switch.
+ */
 int fpu_emulator_cop1Handler(struct pt_regs *xcp, struct mips_fpu_struct *ctx,
 	int has_fpu, void *__user *fault_addr)
 {
@@ -2579,6 +2608,15 @@ int fpu_emulator_cop1Handler(struct pt_r
 			break;
 		if (sig)
 			break;
+		/*
+		 * We have to check for the ISA bit explicitly here,
+		 * because `get_isa16_mode' may return 0 if support
+		 * for code compression has been globally disabled,
+		 * or otherwise we may produce the wrong signal or
+		 * even proceed successfully where we must not.
+		 */
+		if ((xcp->cp0_epc ^ prevepc) & 0x1)
+			break;
 
 		cond_resched();
 	} while (xcp->cp0_epc > prevepc);
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/math-emu/dp_fmax.c linux-libre-4.4.107-gnu/arch/mips/math-emu/dp_fmax.c
--- linux-libre-4.4-gnu/arch/mips/math-emu/dp_fmax.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/math-emu/dp_fmax.c	2017-12-20 04:05:01.000000000 -0500
@@ -47,14 +47,26 @@ union ieee754dp ieee754dp_fmax(union iee
 	case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_INF):
 		return ieee754dp_nanxcpt(x);
 
-	/* numbers are preferred to NaNs */
+	/*
+	 * Quiet NaN handling
+	 */
+
+	/*
+	 *    The case of both inputs quiet NaNs
+	 */
+	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
+		return x;
+
+	/*
+	 *    The cases of exactly one input quiet NaN (numbers
+	 *    are here preferred as returned values to NaNs)
+	 */
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_QNAN):
 		return x;
 
-	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_ZERO):
 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_NORM):
 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_DNORM):
@@ -80,9 +92,7 @@ union ieee754dp ieee754dp_fmax(union iee
 		return ys ? x : y;
 
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_ZERO):
-		if (xs == ys)
-			return x;
-		return ieee754dp_zero(1);
+		return ieee754dp_zero(xs & ys);
 
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_DNORM):
 		DPDNORMX;
@@ -106,16 +116,32 @@ union ieee754dp ieee754dp_fmax(union iee
 	else if (xs < ys)
 		return x;
 
-	/* Compare exponent */
-	if (xe > ye)
-		return x;
-	else if (xe < ye)
-		return y;
+	/* Signs of inputs are equal, let's compare exponents */
+	if (xs == 0) {
+		/* Inputs are both positive */
+		if (xe > ye)
+			return x;
+		else if (xe < ye)
+			return y;
+	} else {
+		/* Inputs are both negative */
+		if (xe > ye)
+			return y;
+		else if (xe < ye)
+			return x;
+	}
 
-	/* Compare mantissa */
+	/* Signs and exponents of inputs are equal, let's compare mantissas */
+	if (xs == 0) {
+		/* Inputs are both positive, with equal signs and exponents */
+		if (xm <= ym)
+			return y;
+		return x;
+	}
+	/* Inputs are both negative, with equal signs and exponents */
 	if (xm <= ym)
-		return y;
-	return x;
+		return x;
+	return y;
 }
 
 union ieee754dp ieee754dp_fmaxa(union ieee754dp x, union ieee754dp y)
@@ -147,14 +173,26 @@ union ieee754dp ieee754dp_fmaxa(union ie
 	case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_INF):
 		return ieee754dp_nanxcpt(x);
 
-	/* numbers are preferred to NaNs */
+	/*
+	 * Quiet NaN handling
+	 */
+
+	/*
+	 *    The case of both inputs quiet NaNs
+	 */
+	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
+		return x;
+
+	/*
+	 *    The cases of exactly one input quiet NaN (numbers
+	 *    are here preferred as returned values to NaNs)
+	 */
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_QNAN):
 		return x;
 
-	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_ZERO):
 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_NORM):
 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_DNORM):
@@ -164,6 +202,9 @@ union ieee754dp ieee754dp_fmaxa(union ie
 	/*
 	 * Infinity and zero handling
 	 */
+	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_INF):
+		return ieee754dp_inf(xs & ys);
+
 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_ZERO):
 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_NORM):
 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_DNORM):
@@ -171,7 +212,6 @@ union ieee754dp ieee754dp_fmaxa(union ie
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_ZERO):
 		return x;
 
-	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_INF):
 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_INF):
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_INF):
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_INF):
@@ -180,9 +220,7 @@ union ieee754dp ieee754dp_fmaxa(union ie
 		return y;
 
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_ZERO):
-		if (xs == ys)
-			return x;
-		return ieee754dp_zero(1);
+		return ieee754dp_zero(xs & ys);
 
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_DNORM):
 		DPDNORMX;
@@ -207,7 +245,11 @@ union ieee754dp ieee754dp_fmaxa(union ie
 		return y;
 
 	/* Compare mantissa */
-	if (xm <= ym)
+	if (xm < ym)
 		return y;
-	return x;
+	else if (xm > ym)
+		return x;
+	else if (xs == 0)
+		return x;
+	return y;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/math-emu/dp_fmin.c linux-libre-4.4.107-gnu/arch/mips/math-emu/dp_fmin.c
--- linux-libre-4.4-gnu/arch/mips/math-emu/dp_fmin.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/math-emu/dp_fmin.c	2017-12-20 04:05:01.000000000 -0500
@@ -47,14 +47,26 @@ union ieee754dp ieee754dp_fmin(union iee
 	case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_INF):
 		return ieee754dp_nanxcpt(x);
 
-	/* numbers are preferred to NaNs */
+	/*
+	 * Quiet NaN handling
+	 */
+
+	/*
+	 *    The case of both inputs quiet NaNs
+	 */
+	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
+		return x;
+
+	/*
+	 *    The cases of exactly one input quiet NaN (numbers
+	 *    are here preferred as returned values to NaNs)
+	 */
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_QNAN):
 		return x;
 
-	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_ZERO):
 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_NORM):
 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_DNORM):
@@ -80,9 +92,7 @@ union ieee754dp ieee754dp_fmin(union iee
 		return ys ? y : x;
 
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_ZERO):
-		if (xs == ys)
-			return x;
-		return ieee754dp_zero(1);
+		return ieee754dp_zero(xs | ys);
 
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_DNORM):
 		DPDNORMX;
@@ -106,16 +116,32 @@ union ieee754dp ieee754dp_fmin(union iee
 	else if (xs < ys)
 		return y;
 
-	/* Compare exponent */
-	if (xe > ye)
-		return y;
-	else if (xe < ye)
-		return x;
+	/* Signs of inputs are the same, let's compare exponents */
+	if (xs == 0) {
+		/* Inputs are both positive */
+		if (xe > ye)
+			return y;
+		else if (xe < ye)
+			return x;
+	} else {
+		/* Inputs are both negative */
+		if (xe > ye)
+			return x;
+		else if (xe < ye)
+			return y;
+	}
 
-	/* Compare mantissa */
+	/* Signs and exponents of inputs are equal, let's compare mantissas */
+	if (xs == 0) {
+		/* Inputs are both positive, with equal signs and exponents */
+		if (xm <= ym)
+			return x;
+		return y;
+	}
+	/* Inputs are both negative, with equal signs and exponents */
 	if (xm <= ym)
-		return x;
-	return y;
+		return y;
+	return x;
 }
 
 union ieee754dp ieee754dp_fmina(union ieee754dp x, union ieee754dp y)
@@ -147,14 +173,26 @@ union ieee754dp ieee754dp_fmina(union ie
 	case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_INF):
 		return ieee754dp_nanxcpt(x);
 
-	/* numbers are preferred to NaNs */
+	/*
+	 * Quiet NaN handling
+	 */
+
+	/*
+	 *    The case of both inputs quiet NaNs
+	 */
+	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
+		return x;
+
+	/*
+	 *    The cases of exactly one input quiet NaN (numbers
+	 *    are here preferred as returned values to NaNs)
+	 */
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_QNAN):
 		return x;
 
-	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_ZERO):
 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_NORM):
 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_DNORM):
@@ -164,25 +202,25 @@ union ieee754dp ieee754dp_fmina(union ie
 	/*
 	 * Infinity and zero handling
 	 */
+	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_INF):
+		return ieee754dp_inf(xs | ys);
+
 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_ZERO):
 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_NORM):
 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_DNORM):
 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_ZERO):
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_ZERO):
-		return x;
+		return y;
 
-	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_INF):
 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_INF):
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_INF):
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_INF):
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_NORM):
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_DNORM):
-		return y;
+		return x;
 
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_ZERO):
-		if (xs == ys)
-			return x;
-		return ieee754dp_zero(1);
+		return ieee754dp_zero(xs | ys);
 
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_DNORM):
 		DPDNORMX;
@@ -207,7 +245,11 @@ union ieee754dp ieee754dp_fmina(union ie
 		return x;
 
 	/* Compare mantissa */
-	if (xm <= ym)
+	if (xm < ym)
+		return x;
+	else if (xm > ym)
+		return y;
+	else if (xs == 1)
 		return x;
 	return y;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/math-emu/sp_fmax.c linux-libre-4.4.107-gnu/arch/mips/math-emu/sp_fmax.c
--- linux-libre-4.4-gnu/arch/mips/math-emu/sp_fmax.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/math-emu/sp_fmax.c	2017-12-20 04:05:01.000000000 -0500
@@ -47,14 +47,26 @@ union ieee754sp ieee754sp_fmax(union iee
 	case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_INF):
 		return ieee754sp_nanxcpt(x);
 
-	/* numbers are preferred to NaNs */
+	/*
+	 * Quiet NaN handling
+	 */
+
+	/*
+	 *    The case of both inputs quiet NaNs
+	 */
+	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
+		return x;
+
+	/*
+	 *    The cases of exactly one input quiet NaN (numbers
+	 *    are here preferred as returned values to NaNs)
+	 */
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_QNAN):
 		return x;
 
-	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_ZERO):
 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_NORM):
 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_DNORM):
@@ -80,9 +92,7 @@ union ieee754sp ieee754sp_fmax(union iee
 		return ys ? x : y;
 
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_ZERO):
-		if (xs == ys)
-			return x;
-		return ieee754sp_zero(1);
+		return ieee754sp_zero(xs & ys);
 
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_DNORM):
 		SPDNORMX;
@@ -106,16 +116,32 @@ union ieee754sp ieee754sp_fmax(union iee
 	else if (xs < ys)
 		return x;
 
-	/* Compare exponent */
-	if (xe > ye)
-		return x;
-	else if (xe < ye)
-		return y;
+	/* Signs of inputs are equal, let's compare exponents */
+	if (xs == 0) {
+		/* Inputs are both positive */
+		if (xe > ye)
+			return x;
+		else if (xe < ye)
+			return y;
+	} else {
+		/* Inputs are both negative */
+		if (xe > ye)
+			return y;
+		else if (xe < ye)
+			return x;
+	}
 
-	/* Compare mantissa */
+	/* Signs and exponents of inputs are equal, let's compare mantissas */
+	if (xs == 0) {
+		/* Inputs are both positive, with equal signs and exponents */
+		if (xm <= ym)
+			return y;
+		return x;
+	}
+	/* Inputs are both negative, with equal signs and exponents */
 	if (xm <= ym)
-		return y;
-	return x;
+		return x;
+	return y;
 }
 
 union ieee754sp ieee754sp_fmaxa(union ieee754sp x, union ieee754sp y)
@@ -147,14 +173,26 @@ union ieee754sp ieee754sp_fmaxa(union ie
 	case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_INF):
 		return ieee754sp_nanxcpt(x);
 
-	/* numbers are preferred to NaNs */
+	/*
+	 * Quiet NaN handling
+	 */
+
+	/*
+	 *    The case of both inputs quiet NaNs
+	 */
+	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
+		return x;
+
+	/*
+	 *    The cases of exactly one input quiet NaN (numbers
+	 *    are here preferred as returned values to NaNs)
+	 */
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_QNAN):
 		return x;
 
-	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_ZERO):
 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_NORM):
 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_DNORM):
@@ -164,6 +202,9 @@ union ieee754sp ieee754sp_fmaxa(union ie
 	/*
 	 * Infinity and zero handling
 	 */
+	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_INF):
+		return ieee754sp_inf(xs & ys);
+
 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_ZERO):
 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_NORM):
 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_DNORM):
@@ -171,7 +212,6 @@ union ieee754sp ieee754sp_fmaxa(union ie
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_ZERO):
 		return x;
 
-	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_INF):
 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_INF):
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_INF):
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_INF):
@@ -180,9 +220,7 @@ union ieee754sp ieee754sp_fmaxa(union ie
 		return y;
 
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_ZERO):
-		if (xs == ys)
-			return x;
-		return ieee754sp_zero(1);
+		return ieee754sp_zero(xs & ys);
 
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_DNORM):
 		SPDNORMX;
@@ -207,7 +245,11 @@ union ieee754sp ieee754sp_fmaxa(union ie
 		return y;
 
 	/* Compare mantissa */
-	if (xm <= ym)
+	if (xm < ym)
 		return y;
-	return x;
+	else if (xm > ym)
+		return x;
+	else if (xs == 0)
+		return x;
+	return y;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/math-emu/sp_fmin.c linux-libre-4.4.107-gnu/arch/mips/math-emu/sp_fmin.c
--- linux-libre-4.4-gnu/arch/mips/math-emu/sp_fmin.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/math-emu/sp_fmin.c	2017-12-20 04:05:01.000000000 -0500
@@ -47,14 +47,26 @@ union ieee754sp ieee754sp_fmin(union iee
 	case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_INF):
 		return ieee754sp_nanxcpt(x);
 
-	/* numbers are preferred to NaNs */
+	/*
+	 * Quiet NaN handling
+	 */
+
+	/*
+	 *    The case of both inputs quiet NaNs
+	 */
+	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
+		return x;
+
+	/*
+	 *    The cases of exactly one input quiet NaN (numbers
+	 *    are here preferred as returned values to NaNs)
+	 */
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_QNAN):
 		return x;
 
-	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_ZERO):
 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_NORM):
 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_DNORM):
@@ -80,9 +92,7 @@ union ieee754sp ieee754sp_fmin(union iee
 		return ys ? y : x;
 
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_ZERO):
-		if (xs == ys)
-			return x;
-		return ieee754sp_zero(1);
+		return ieee754sp_zero(xs | ys);
 
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_DNORM):
 		SPDNORMX;
@@ -106,16 +116,32 @@ union ieee754sp ieee754sp_fmin(union iee
 	else if (xs < ys)
 		return y;
 
-	/* Compare exponent */
-	if (xe > ye)
-		return y;
-	else if (xe < ye)
-		return x;
+	/* Signs of inputs are the same, let's compare exponents */
+	if (xs == 0) {
+		/* Inputs are both positive */
+		if (xe > ye)
+			return y;
+		else if (xe < ye)
+			return x;
+	} else {
+		/* Inputs are both negative */
+		if (xe > ye)
+			return x;
+		else if (xe < ye)
+			return y;
+	}
 
-	/* Compare mantissa */
+	/* Signs and exponents of inputs are equal, let's compare mantissas */
+	if (xs == 0) {
+		/* Inputs are both positive, with equal signs and exponents */
+		if (xm <= ym)
+			return x;
+		return y;
+	}
+	/* Inputs are both negative, with equal signs and exponents */
 	if (xm <= ym)
-		return x;
-	return y;
+		return y;
+	return x;
 }
 
 union ieee754sp ieee754sp_fmina(union ieee754sp x, union ieee754sp y)
@@ -147,14 +173,26 @@ union ieee754sp ieee754sp_fmina(union ie
 	case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_INF):
 		return ieee754sp_nanxcpt(x);
 
-	/* numbers are preferred to NaNs */
+	/*
+	 * Quiet NaN handling
+	 */
+
+	/*
+	 *    The case of both inputs quiet NaNs
+	 */
+	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
+		return x;
+
+	/*
+	 *    The cases of exactly one input quiet NaN (numbers
+	 *    are here preferred as returned values to NaNs)
+	 */
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_QNAN):
 		return x;
 
-	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_ZERO):
 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_NORM):
 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_DNORM):
@@ -164,25 +202,25 @@ union ieee754sp ieee754sp_fmina(union ie
 	/*
 	 * Infinity and zero handling
 	 */
+	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_INF):
+		return ieee754sp_inf(xs | ys);
+
 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_ZERO):
 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_NORM):
 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_DNORM):
 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_ZERO):
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_ZERO):
-		return x;
+		return y;
 
-	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_INF):
 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_INF):
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_INF):
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_INF):
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_NORM):
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_DNORM):
-		return y;
+		return x;
 
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_ZERO):
-		if (xs == ys)
-			return x;
-		return ieee754sp_zero(1);
+		return ieee754sp_zero(xs | ys);
 
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_DNORM):
 		SPDNORMX;
@@ -207,7 +245,11 @@ union ieee754sp ieee754sp_fmina(union ie
 		return x;
 
 	/* Compare mantissa */
-	if (xm <= ym)
+	if (xm < ym)
+		return x;
+	else if (xm > ym)
+		return y;
+	else if (xs == 1)
 		return x;
 	return y;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/mm/cache.c linux-libre-4.4.107-gnu/arch/mips/mm/cache.c
--- linux-libre-4.4-gnu/arch/mips/mm/cache.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/mm/cache.c	2017-12-20 04:05:01.000000000 -0500
@@ -16,6 +16,7 @@
 #include <linux/mm.h>
 
 #include <asm/cacheflush.h>
+#include <asm/highmem.h>
 #include <asm/processor.h>
 #include <asm/cpu.h>
 #include <asm/cpu-features.h>
@@ -83,8 +84,6 @@ void __flush_dcache_page(struct page *pa
 	struct address_space *mapping = page_mapping(page);
 	unsigned long addr;
 
-	if (PageHighMem(page))
-		return;
 	if (mapping && !mapping_mapped(mapping)) {
 		SetPageDcacheDirty(page);
 		return;
@@ -95,8 +94,15 @@ void __flush_dcache_page(struct page *pa
 	 * case is for exec env/arg pages and those are %99 certainly going to
 	 * get faulted into the tlb (and thus flushed) anyways.
 	 */
-	addr = (unsigned long) page_address(page);
+	if (PageHighMem(page))
+		addr = (unsigned long)kmap_atomic(page);
+	else
+		addr = (unsigned long)page_address(page);
+
 	flush_data_cache_page(addr);
+
+	if (PageHighMem(page))
+		__kunmap_atomic((void *)addr);
 }
 
 EXPORT_SYMBOL(__flush_dcache_page);
@@ -119,33 +125,28 @@ void __flush_anon_page(struct page *page
 
 EXPORT_SYMBOL(__flush_anon_page);
 
-void __flush_icache_page(struct vm_area_struct *vma, struct page *page)
-{
-	unsigned long addr;
-
-	if (PageHighMem(page))
-		return;
-
-	addr = (unsigned long) page_address(page);
-	flush_data_cache_page(addr);
-}
-EXPORT_SYMBOL_GPL(__flush_icache_page);
-
-void __update_cache(struct vm_area_struct *vma, unsigned long address,
-	pte_t pte)
+void __update_cache(unsigned long address, pte_t pte)
 {
 	struct page *page;
 	unsigned long pfn, addr;
-	int exec = (vma->vm_flags & VM_EXEC) && !cpu_has_ic_fills_f_dc;
+	int exec = !pte_no_exec(pte) && !cpu_has_ic_fills_f_dc;
 
 	pfn = pte_pfn(pte);
 	if (unlikely(!pfn_valid(pfn)))
 		return;
 	page = pfn_to_page(pfn);
-	if (page_mapping(page) && Page_dcache_dirty(page)) {
-		addr = (unsigned long) page_address(page);
+	if (Page_dcache_dirty(page)) {
+		if (PageHighMem(page))
+			addr = (unsigned long)kmap_atomic(page);
+		else
+			addr = (unsigned long)page_address(page);
+
 		if (exec || pages_do_alias(addr, address & PAGE_MASK))
 			flush_data_cache_page(addr);
+
+		if (PageHighMem(page))
+			__kunmap_atomic((void *)addr);
+
 		ClearPageDcacheDirty(page);
 	}
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/mm/mmap.c linux-libre-4.4.107-gnu/arch/mips/mm/mmap.c
--- linux-libre-4.4-gnu/arch/mips/mm/mmap.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/mm/mmap.c	2017-12-20 04:05:01.000000000 -0500
@@ -92,7 +92,7 @@ static unsigned long arch_get_unmapped_a
 
 		vma = find_vma(mm, addr);
 		if (TASK_SIZE - len >= addr &&
-		    (!vma || addr + len <= vma->vm_start))
+		    (!vma || addr + len <= vm_start_gap(vma)))
 			return addr;
 	}
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/mm/sc-ip22.c linux-libre-4.4.107-gnu/arch/mips/mm/sc-ip22.c
--- linux-libre-4.4-gnu/arch/mips/mm/sc-ip22.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/mm/sc-ip22.c	2017-12-20 04:05:01.000000000 -0500
@@ -31,26 +31,40 @@ static inline void indy_sc_wipe(unsigned
 	unsigned long tmp;
 
 	__asm__ __volatile__(
-	".set\tpush\t\t\t# indy_sc_wipe\n\t"
-	".set\tnoreorder\n\t"
-	".set\tmips3\n\t"
-	".set\tnoat\n\t"
-	"mfc0\t%2, $12\n\t"
-	"li\t$1, 0x80\t\t\t# Go 64 bit\n\t"
-	"mtc0\t$1, $12\n\t"
-
-	"dli\t$1, 0x9000000080000000\n\t"
-	"or\t%0, $1\t\t\t# first line to flush\n\t"
-	"or\t%1, $1\t\t\t# last line to flush\n\t"
-	".set\tat\n\t"
-
-	"1:\tsw\t$0, 0(%0)\n\t"
-	"bne\t%0, %1, 1b\n\t"
-	" daddu\t%0, 32\n\t"
-
-	"mtc0\t%2, $12\t\t\t# Back to 32 bit\n\t"
-	"nop; nop; nop; nop;\n\t"
-	".set\tpop"
+	"	.set	push			# indy_sc_wipe		\n"
+	"	.set	noreorder					\n"
+	"	.set	mips3						\n"
+	"	.set	noat						\n"
+	"	mfc0	%2, $12						\n"
+	"	li	$1, 0x80		# Go 64 bit		\n"
+	"	mtc0	$1, $12						\n"
+	"								\n"
+	"	#							\n"
+	"	# Open code a dli $1, 0x9000000080000000		\n"
+	"	#							\n"
+	"	# Required because binutils 2.25 will happily accept	\n"
+	"	# 64 bit instructions in .set mips3 mode but puke on	\n"
+	"	# 64 bit constants when generating 32 bit ELF		\n"
+	"	#							\n"
+	"	lui	$1,0x9000					\n"
+	"	dsll	$1,$1,0x10					\n"
+	"	ori	$1,$1,0x8000					\n"
+	"	dsll	$1,$1,0x10					\n"
+	"								\n"
+	"	or	%0, $1			# first line to flush	\n"
+	"	or	%1, $1			# last line to flush	\n"
+	"	.set	at						\n"
+	"								\n"
+	"1:	sw	$0, 0(%0)					\n"
+	"	bne	%0, %1, 1b					\n"
+	"	 daddu	%0, 32						\n"
+	"								\n"
+	"	mtc0	%2, $12			# Back to 32 bit	\n"
+	"	nop				# pipeline hazard	\n"
+	"	nop							\n"
+	"	nop							\n"
+	"	nop							\n"
+	"	.set	pop						\n"
 	: "=r" (first), "=r" (last), "=&r" (tmp)
 	: "0" (first), "1" (last));
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/mm/sc-mips.c linux-libre-4.4.107-gnu/arch/mips/mm/sc-mips.c
--- linux-libre-4.4-gnu/arch/mips/mm/sc-mips.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/mm/sc-mips.c	2017-12-20 04:05:01.000000000 -0500
@@ -164,11 +164,13 @@ static int __init mips_sc_probe_cm3(void
 
 	sets = cfg & CM_GCR_L2_CONFIG_SET_SIZE_MSK;
 	sets >>= CM_GCR_L2_CONFIG_SET_SIZE_SHF;
-	c->scache.sets = 64 << sets;
+	if (sets)
+		c->scache.sets = 64 << sets;
 
 	line_sz = cfg & CM_GCR_L2_CONFIG_LINE_SIZE_MSK;
 	line_sz >>= CM_GCR_L2_CONFIG_LINE_SIZE_SHF;
-	c->scache.linesz = 2 << line_sz;
+	if (line_sz)
+		c->scache.linesz = 2 << line_sz;
 
 	assoc = cfg & CM_GCR_L2_CONFIG_ASSOC_MSK;
 	assoc >>= CM_GCR_L2_CONFIG_ASSOC_SHF;
@@ -176,9 +178,12 @@ static int __init mips_sc_probe_cm3(void
 	c->scache.waysize = c->scache.sets * c->scache.linesz;
 	c->scache.waybit = __ffs(c->scache.waysize);
 
-	c->scache.flags &= ~MIPS_CACHE_NOT_PRESENT;
+	if (c->scache.linesz) {
+		c->scache.flags &= ~MIPS_CACHE_NOT_PRESENT;
+		return 1;
+	}
 
-	return 1;
+	return 0;
 }
 
 void __weak platform_early_l2_init(void)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/mm/tlbex.c linux-libre-4.4.107-gnu/arch/mips/mm/tlbex.c
--- linux-libre-4.4-gnu/arch/mips/mm/tlbex.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/mm/tlbex.c	2017-12-20 04:05:01.000000000 -0500
@@ -242,7 +242,7 @@ static void output_pgtable_bits_defines(
 	pr_define("_PAGE_HUGE_SHIFT %d\n", _PAGE_HUGE_SHIFT);
 	pr_define("_PAGE_SPLITTING_SHIFT %d\n", _PAGE_SPLITTING_SHIFT);
 #endif
-#ifdef CONFIG_CPU_MIPSR2
+#if defined(CONFIG_CPU_MIPSR2) || defined(CONFIG_CPU_MIPSR6)
 	if (cpu_has_rixi) {
 #ifdef _PAGE_NO_EXEC_SHIFT
 		pr_define("_PAGE_NO_EXEC_SHIFT %d\n", _PAGE_NO_EXEC_SHIFT);
@@ -757,7 +757,8 @@ static void build_huge_update_entries(u3
 static void build_huge_handler_tail(u32 **p, struct uasm_reloc **r,
 				    struct uasm_label **l,
 				    unsigned int pte,
-				    unsigned int ptr)
+				    unsigned int ptr,
+				    unsigned int flush)
 {
 #ifdef CONFIG_SMP
 	UASM_i_SC(p, pte, 0, ptr);
@@ -766,6 +767,22 @@ static void build_huge_handler_tail(u32
 #else
 	UASM_i_SW(p, pte, 0, ptr);
 #endif
+	if (cpu_has_ftlb && flush) {
+		BUG_ON(!cpu_has_tlbinv);
+
+		UASM_i_MFC0(p, ptr, C0_ENTRYHI);
+		uasm_i_ori(p, ptr, ptr, MIPS_ENTRYHI_EHINV);
+		UASM_i_MTC0(p, ptr, C0_ENTRYHI);
+		build_tlb_write_entry(p, l, r, tlb_indexed);
+
+		uasm_i_xori(p, ptr, ptr, MIPS_ENTRYHI_EHINV);
+		UASM_i_MTC0(p, ptr, C0_ENTRYHI);
+		build_huge_update_entries(p, pte, ptr);
+		build_huge_tlb_write_entry(p, l, r, pte, tlb_random, 0);
+
+		return;
+	}
+
 	build_huge_update_entries(p, pte, ptr);
 	build_huge_tlb_write_entry(p, l, r, pte, tlb_indexed, 0);
 }
@@ -2082,7 +2099,7 @@ static void build_r4000_tlb_load_handler
 		uasm_l_tlbl_goaround2(&l, p);
 	}
 	uasm_i_ori(&p, wr.r1, wr.r1, (_PAGE_ACCESSED | _PAGE_VALID));
-	build_huge_handler_tail(&p, &r, &l, wr.r1, wr.r2);
+	build_huge_handler_tail(&p, &r, &l, wr.r1, wr.r2, 1);
 #endif
 
 	uasm_l_nopage_tlbl(&l, p);
@@ -2137,7 +2154,7 @@ static void build_r4000_tlb_store_handle
 	build_tlb_probe_entry(&p);
 	uasm_i_ori(&p, wr.r1, wr.r1,
 		   _PAGE_ACCESSED | _PAGE_MODIFIED | _PAGE_VALID | _PAGE_DIRTY);
-	build_huge_handler_tail(&p, &r, &l, wr.r1, wr.r2);
+	build_huge_handler_tail(&p, &r, &l, wr.r1, wr.r2, 1);
 #endif
 
 	uasm_l_nopage_tlbs(&l, p);
@@ -2193,7 +2210,7 @@ static void build_r4000_tlb_modify_handl
 	build_tlb_probe_entry(&p);
 	uasm_i_ori(&p, wr.r1, wr.r1,
 		   _PAGE_ACCESSED | _PAGE_MODIFIED | _PAGE_VALID | _PAGE_DIRTY);
-	build_huge_handler_tail(&p, &r, &l, wr.r1, wr.r2);
+	build_huge_handler_tail(&p, &r, &l, wr.r1, wr.r2, 0);
 #endif
 
 	uasm_l_nopage_tlbm(&l, p);
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/mm/uasm-micromips.c linux-libre-4.4.107-gnu/arch/mips/mm/uasm-micromips.c
--- linux-libre-4.4-gnu/arch/mips/mm/uasm-micromips.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/mm/uasm-micromips.c	2017-12-20 04:05:01.000000000 -0500
@@ -75,7 +75,7 @@ static struct insn insn_table_MM[] = {
 	{ insn_jr, M(mm_pool32a_op, 0, 0, 0, mm_jalr_op, mm_pool32axf_op), RS },
 	{ insn_lb, M(mm_lb32_op, 0, 0, 0, 0, 0), RT | RS | SIMM },
 	{ insn_ld, 0, 0 },
-	{ insn_lh, M(mm_lh32_op, 0, 0, 0, 0, 0), RS | RS | SIMM },
+	{ insn_lh, M(mm_lh32_op, 0, 0, 0, 0, 0), RT | RS | SIMM },
 	{ insn_ll, M(mm_pool32c_op, 0, 0, (mm_ll_func << 1), 0, 0), RS | RT | SIMM },
 	{ insn_lld, 0, 0 },
 	{ insn_lui, M(mm_pool32i_op, mm_lui_op, 0, 0, 0, 0), RS | SIMM },
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/mm/uasm-mips.c linux-libre-4.4.107-gnu/arch/mips/mm/uasm-mips.c
--- linux-libre-4.4-gnu/arch/mips/mm/uasm-mips.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/mm/uasm-mips.c	2017-12-20 04:05:01.000000000 -0500
@@ -65,7 +65,7 @@ static struct insn insn_table[] = {
 #ifndef CONFIG_CPU_MIPSR6
 	{ insn_cache,  M(cache_op, 0, 0, 0, 0, 0),  RS | RT | SIMM },
 #else
-	{ insn_cache,  M6(cache_op, 0, 0, 0, cache6_op),  RS | RT | SIMM9 },
+	{ insn_cache,  M6(spec3_op, 0, 0, 0, cache6_op),  RS | RT | SIMM9 },
 #endif
 	{ insn_daddiu, M(daddiu_op, 0, 0, 0, 0, 0), RS | RT | SIMM },
 	{ insn_daddu, M(spec_op, 0, 0, 0, 0, daddu_op), RS | RT | RD },
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/mti-malta/malta-setup.c linux-libre-4.4.107-gnu/arch/mips/mti-malta/malta-setup.c
--- linux-libre-4.4-gnu/arch/mips/mti-malta/malta-setup.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/mti-malta/malta-setup.c	2017-12-20 04:05:01.000000000 -0500
@@ -39,6 +39,9 @@
 #include <linux/console.h>
 #endif
 
+#define ROCIT_CONFIG_GEN0		0x1f403000
+#define  ROCIT_CONFIG_GEN0_PCI_IOCU	BIT(7)
+
 extern void malta_be_init(void);
 extern int malta_be_handler(struct pt_regs *regs, int is_fixup);
 
@@ -107,6 +110,8 @@ static void __init fd_activate(void)
 static int __init plat_enable_iocoherency(void)
 {
 	int supported = 0;
+	u32 cfg;
+
 	if (mips_revision_sconid == MIPS_REVISION_SCON_BONITO) {
 		if (BONITO_PCICACHECTRL & BONITO_PCICACHECTRL_CPUCOH_PRES) {
 			BONITO_PCICACHECTRL |= BONITO_PCICACHECTRL_CPUCOH_EN;
@@ -129,7 +134,8 @@ static int __init plat_enable_iocoherenc
 	} else if (mips_cm_numiocu() != 0) {
 		/* Nothing special needs to be done to enable coherency */
 		pr_info("CMP IOCU detected\n");
-		if ((*(unsigned int *)0xbf403000 & 0x81) != 0x81) {
+		cfg = __raw_readl((u32 *)CKSEG1ADDR(ROCIT_CONFIG_GEN0));
+		if (!(cfg & ROCIT_CONFIG_GEN0_PCI_IOCU)) {
 			pr_crit("IOCU OPERATION DISABLED BY SWITCH - DEFAULTING TO SW IO COHERENCY\n");
 			return 0;
 		}
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/netlogic/common/irq.c linux-libre-4.4.107-gnu/arch/mips/netlogic/common/irq.c
--- linux-libre-4.4-gnu/arch/mips/netlogic/common/irq.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/netlogic/common/irq.c	2017-12-20 04:05:01.000000000 -0500
@@ -275,7 +275,7 @@ asmlinkage void plat_irq_dispatch(void)
 	do_IRQ(nlm_irq_to_xirq(node, i));
 }
 
-#ifdef CONFIG_OF
+#ifdef CONFIG_CPU_XLP
 static const struct irq_domain_ops xlp_pic_irq_domain_ops = {
 	.xlate = irq_domain_xlate_onetwocell,
 };
@@ -348,7 +348,7 @@ void __init arch_init_irq(void)
 #if defined(CONFIG_CPU_XLR)
 	nlm_setup_fmn_irq();
 #endif
-#if defined(CONFIG_OF)
+#ifdef CONFIG_CPU_XLP
 	of_irq_init(xlp_pic_irq_ids);
 #endif
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/netlogic/common/reset.S linux-libre-4.4.107-gnu/arch/mips/netlogic/common/reset.S
--- linux-libre-4.4-gnu/arch/mips/netlogic/common/reset.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/netlogic/common/reset.S	2017-12-20 04:05:01.000000000 -0500
@@ -50,7 +50,6 @@
 #include <asm/netlogic/xlp-hal/sys.h>
 #include <asm/netlogic/xlp-hal/cpucontrol.h>
 
-#define CP0_EBASE	$15
 #define SYS_CPU_COHERENT_BASE	CKSEG1ADDR(XLP_DEFAULT_IO_BASE) + \
 			XLP_IO_SYS_OFFSET(0) + XLP_IO_PCI_HDRSZ + \
 			SYS_CPU_NONCOHERENT_MODE * 4
@@ -92,7 +91,7 @@
  * registers. On XLPII CPUs, usual cache instructions work.
  */
 .macro	xlp_flush_l1_dcache
-	mfc0	t0, CP0_EBASE, 0
+	mfc0	t0, CP0_PRID
 	andi	t0, t0, PRID_IMP_MASK
 	slt	t1, t0, 0x1200
 	beqz	t1, 15f
@@ -171,7 +170,7 @@ FEXPORT(nlm_reset_entry)
 	nop
 
 1:	/* Entry point on core wakeup */
-	mfc0	t0, CP0_EBASE, 0	/* processor ID */
+	mfc0	t0, CP0_PRID		/* processor ID */
 	andi	t0, PRID_IMP_MASK
 	li	t1, 0x1500		/* XLP 9xx */
 	beq	t0, t1, 2f		/* does not need to set coherent */
@@ -182,8 +181,8 @@ FEXPORT(nlm_reset_entry)
 	nop
 
 	/* set bit in SYS coherent register for the core */
-	mfc0	t0, CP0_EBASE, 1
-	mfc0	t1, CP0_EBASE, 1
+	mfc0	t0, CP0_EBASE
+	mfc0	t1, CP0_EBASE
 	srl	t1, 5
 	andi	t1, 0x3			/* t1 <- node */
 	li	t2, 0x40000
@@ -232,7 +231,7 @@ EXPORT(nlm_boot_siblings)
 
 	 * NOTE: All GPR contents are lost after the mtcr above!
 	 */
-	mfc0	v0, CP0_EBASE, 1
+	mfc0	v0, CP0_EBASE
 	andi	v0, 0x3ff		/* v0 <- node/core */
 
 	/*
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/netlogic/common/smpboot.S linux-libre-4.4.107-gnu/arch/mips/netlogic/common/smpboot.S
--- linux-libre-4.4-gnu/arch/mips/netlogic/common/smpboot.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/netlogic/common/smpboot.S	2017-12-20 04:05:01.000000000 -0500
@@ -48,8 +48,6 @@
 #include <asm/netlogic/xlp-hal/sys.h>
 #include <asm/netlogic/xlp-hal/cpucontrol.h>
 
-#define CP0_EBASE	$15
-
 	.set	noreorder
 	.set	noat
 	.set	arch=xlr		/* for mfcr/mtcr, XLR is sufficient */
@@ -86,7 +84,7 @@ NESTED(nlm_boot_secondary_cpus, 16, sp)
 	PTR_L	gp, 0(t1)
 
 	/* a0 has the processor id */
-	mfc0	a0, CP0_EBASE, 1
+	mfc0	a0, CP0_EBASE
 	andi	a0, 0x3ff		/* a0 <- node/core */
 	PTR_LA	t0, nlm_early_init_secondary
 	jalr	t0
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/ralink/mt7620.c linux-libre-4.4.107-gnu/arch/mips/ralink/mt7620.c
--- linux-libre-4.4-gnu/arch/mips/ralink/mt7620.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/ralink/mt7620.c	2017-12-20 04:05:01.000000000 -0500
@@ -107,31 +107,31 @@ static struct rt2880_pmx_group mt7620a_p
 };
 
 static struct rt2880_pmx_func pwm1_grp_mt7628[] = {
-	FUNC("sdcx", 3, 19, 1),
+	FUNC("sdxc d6", 3, 19, 1),
 	FUNC("utif", 2, 19, 1),
 	FUNC("gpio", 1, 19, 1),
-	FUNC("pwm", 0, 19, 1),
+	FUNC("pwm1", 0, 19, 1),
 };
 
 static struct rt2880_pmx_func pwm0_grp_mt7628[] = {
-	FUNC("sdcx", 3, 18, 1),
+	FUNC("sdxc d7", 3, 18, 1),
 	FUNC("utif", 2, 18, 1),
 	FUNC("gpio", 1, 18, 1),
-	FUNC("pwm", 0, 18, 1),
+	FUNC("pwm0", 0, 18, 1),
 };
 
 static struct rt2880_pmx_func uart2_grp_mt7628[] = {
-	FUNC("sdcx", 3, 20, 2),
+	FUNC("sdxc d5 d4", 3, 20, 2),
 	FUNC("pwm", 2, 20, 2),
 	FUNC("gpio", 1, 20, 2),
-	FUNC("uart", 0, 20, 2),
+	FUNC("uart2", 0, 20, 2),
 };
 
 static struct rt2880_pmx_func uart1_grp_mt7628[] = {
-	FUNC("sdcx", 3, 45, 2),
+	FUNC("sw_r", 3, 45, 2),
 	FUNC("pwm", 2, 45, 2),
 	FUNC("gpio", 1, 45, 2),
-	FUNC("uart", 0, 45, 2),
+	FUNC("uart1", 0, 45, 2),
 };
 
 static struct rt2880_pmx_func i2c_grp_mt7628[] = {
@@ -141,23 +141,23 @@ static struct rt2880_pmx_func i2c_grp_mt
 	FUNC("i2c", 0, 4, 2),
 };
 
-static struct rt2880_pmx_func refclk_grp_mt7628[] = { FUNC("reclk", 0, 36, 1) };
-static struct rt2880_pmx_func perst_grp_mt7628[] = { FUNC("perst", 0, 37, 1) };
-static struct rt2880_pmx_func wdt_grp_mt7628[] = { FUNC("wdt", 0, 15, 38) };
+static struct rt2880_pmx_func refclk_grp_mt7628[] = { FUNC("refclk", 0, 37, 1) };
+static struct rt2880_pmx_func perst_grp_mt7628[] = { FUNC("perst", 0, 36, 1) };
+static struct rt2880_pmx_func wdt_grp_mt7628[] = { FUNC("wdt", 0, 38, 1) };
 static struct rt2880_pmx_func spi_grp_mt7628[] = { FUNC("spi", 0, 7, 4) };
 
 static struct rt2880_pmx_func sd_mode_grp_mt7628[] = {
 	FUNC("jtag", 3, 22, 8),
 	FUNC("utif", 2, 22, 8),
 	FUNC("gpio", 1, 22, 8),
-	FUNC("sdcx", 0, 22, 8),
+	FUNC("sdxc", 0, 22, 8),
 };
 
 static struct rt2880_pmx_func uart0_grp_mt7628[] = {
 	FUNC("-", 3, 12, 2),
 	FUNC("-", 2, 12, 2),
 	FUNC("gpio", 1, 12, 2),
-	FUNC("uart", 0, 12, 2),
+	FUNC("uart0", 0, 12, 2),
 };
 
 static struct rt2880_pmx_func i2s_grp_mt7628[] = {
@@ -171,7 +171,7 @@ static struct rt2880_pmx_func spi_cs1_gr
 	FUNC("-", 3, 6, 1),
 	FUNC("refclk", 2, 6, 1),
 	FUNC("gpio", 1, 6, 1),
-	FUNC("spi", 0, 6, 1),
+	FUNC("spi cs1", 0, 6, 1),
 };
 
 static struct rt2880_pmx_func spis_grp_mt7628[] = {
@@ -188,28 +188,44 @@ static struct rt2880_pmx_func gpio_grp_m
 	FUNC("gpio", 0, 11, 1),
 };
 
-#define MT7628_GPIO_MODE_MASK	0x3
+static struct rt2880_pmx_func wled_kn_grp_mt7628[] = {
+	FUNC("rsvd", 3, 35, 1),
+	FUNC("rsvd", 2, 35, 1),
+	FUNC("gpio", 1, 35, 1),
+	FUNC("wled_kn", 0, 35, 1),
+};
 
-#define MT7628_GPIO_MODE_PWM1	30
-#define MT7628_GPIO_MODE_PWM0	28
-#define MT7628_GPIO_MODE_UART2	26
-#define MT7628_GPIO_MODE_UART1	24
-#define MT7628_GPIO_MODE_I2C	20
-#define MT7628_GPIO_MODE_REFCLK	18
-#define MT7628_GPIO_MODE_PERST	16
-#define MT7628_GPIO_MODE_WDT	14
-#define MT7628_GPIO_MODE_SPI	12
-#define MT7628_GPIO_MODE_SDMODE	10
-#define MT7628_GPIO_MODE_UART0	8
-#define MT7628_GPIO_MODE_I2S	6
-#define MT7628_GPIO_MODE_CS1	4
-#define MT7628_GPIO_MODE_SPIS	2
-#define MT7628_GPIO_MODE_GPIO	0
+static struct rt2880_pmx_func wled_an_grp_mt7628[] = {
+	FUNC("rsvd", 3, 44, 1),
+	FUNC("rsvd", 2, 44, 1),
+	FUNC("gpio", 1, 44, 1),
+	FUNC("wled_an", 0, 44, 1),
+};
+
+#define MT7628_GPIO_MODE_MASK		0x3
+
+#define MT7628_GPIO_MODE_WLED_KN	48
+#define MT7628_GPIO_MODE_WLED_AN	32
+#define MT7628_GPIO_MODE_PWM1		30
+#define MT7628_GPIO_MODE_PWM0		28
+#define MT7628_GPIO_MODE_UART2		26
+#define MT7628_GPIO_MODE_UART1		24
+#define MT7628_GPIO_MODE_I2C		20
+#define MT7628_GPIO_MODE_REFCLK		18
+#define MT7628_GPIO_MODE_PERST		16
+#define MT7628_GPIO_MODE_WDT		14
+#define MT7628_GPIO_MODE_SPI		12
+#define MT7628_GPIO_MODE_SDMODE		10
+#define MT7628_GPIO_MODE_UART0		8
+#define MT7628_GPIO_MODE_I2S		6
+#define MT7628_GPIO_MODE_CS1		4
+#define MT7628_GPIO_MODE_SPIS		2
+#define MT7628_GPIO_MODE_GPIO		0
 
 static struct rt2880_pmx_group mt7628an_pinmux_data[] = {
-	GRP_G("pmw1", pwm1_grp_mt7628, MT7628_GPIO_MODE_MASK,
+	GRP_G("pwm1", pwm1_grp_mt7628, MT7628_GPIO_MODE_MASK,
 				1, MT7628_GPIO_MODE_PWM1),
-	GRP_G("pmw1", pwm0_grp_mt7628, MT7628_GPIO_MODE_MASK,
+	GRP_G("pwm0", pwm0_grp_mt7628, MT7628_GPIO_MODE_MASK,
 				1, MT7628_GPIO_MODE_PWM0),
 	GRP_G("uart2", uart2_grp_mt7628, MT7628_GPIO_MODE_MASK,
 				1, MT7628_GPIO_MODE_UART2),
@@ -233,6 +249,10 @@ static struct rt2880_pmx_group mt7628an_
 				1, MT7628_GPIO_MODE_SPIS),
 	GRP_G("gpio", gpio_grp_mt7628, MT7628_GPIO_MODE_MASK,
 				1, MT7628_GPIO_MODE_GPIO),
+	GRP_G("wled_an", wled_an_grp_mt7628, MT7628_GPIO_MODE_MASK,
+				1, MT7628_GPIO_MODE_WLED_AN),
+	GRP_G("wled_kn", wled_kn_grp_mt7628, MT7628_GPIO_MODE_MASK,
+				1, MT7628_GPIO_MODE_WLED_KN),
 	{ 0 }
 };
 
@@ -439,7 +459,7 @@ void __init ralink_clk_init(void)
 	ralink_clk_add("10000c00.uartlite", periph_rate);
 	ralink_clk_add("10180000.wmac", xtal_rate);
 
-	if (IS_ENABLED(CONFIG_USB) && is_mt76x8()) {
+	if (IS_ENABLED(CONFIG_USB) && !is_mt76x8()) {
 		/*
 		 * When the CPU goes into sleep mode, the BUS clock will be
 		 * too low for USB to function properly. Adjust the busses
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/ralink/prom.c linux-libre-4.4.107-gnu/arch/mips/ralink/prom.c
--- linux-libre-4.4-gnu/arch/mips/ralink/prom.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/ralink/prom.c	2017-12-20 04:05:01.000000000 -0500
@@ -30,8 +30,10 @@ const char *get_system_type(void)
 	return soc_info.sys_type;
 }
 
-static __init void prom_init_cmdline(int argc, char **argv)
+static __init void prom_init_cmdline(void)
 {
+	int argc;
+	char **argv;
 	int i;
 
 	pr_debug("prom: fw_arg0=%08x fw_arg1=%08x fw_arg2=%08x fw_arg3=%08x\n",
@@ -60,14 +62,11 @@ static __init void prom_init_cmdline(int
 
 void __init prom_init(void)
 {
-	int argc;
-	char **argv;
-
 	prom_soc_init(&soc_info);
 
 	pr_info("SoC Type: %s\n", get_system_type());
 
-	prom_init_cmdline(argc, argv);
+	prom_init_cmdline();
 }
 
 void __init prom_free_prom_memory(void)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/ralink/rt288x.c linux-libre-4.4.107-gnu/arch/mips/ralink/rt288x.c
--- linux-libre-4.4-gnu/arch/mips/ralink/rt288x.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/ralink/rt288x.c	2017-12-20 04:05:01.000000000 -0500
@@ -40,16 +40,6 @@ static struct rt2880_pmx_group rt2880_pi
 	{ 0 }
 };
 
-static void rt288x_wdt_reset(void)
-{
-	u32 t;
-
-	/* enable WDT reset output on pin SRAM_CS_N */
-	t = rt_sysc_r32(SYSC_REG_CLKCFG);
-	t |= CLKCFG_SRAM_CS_N_WDT;
-	rt_sysc_w32(t, SYSC_REG_CLKCFG);
-}
-
 void __init ralink_clk_init(void)
 {
 	unsigned long cpu_rate, wmac_rate = 40000000;
@@ -119,5 +109,5 @@ void prom_soc_init(struct ralink_soc_inf
 	soc_info->mem_size_max = RT2880_MEM_SIZE_MAX;
 
 	rt2880_pinmux_data = rt2880_pinmux_data_act;
-	ralink_soc == RT2880_SOC;
+	ralink_soc = RT2880_SOC;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/ralink/rt305x.c linux-libre-4.4.107-gnu/arch/mips/ralink/rt305x.c
--- linux-libre-4.4-gnu/arch/mips/ralink/rt305x.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/ralink/rt305x.c	2017-12-20 04:05:01.000000000 -0500
@@ -89,17 +89,6 @@ static struct rt2880_pmx_group rt5350_pi
 	{ 0 }
 };
 
-static void rt305x_wdt_reset(void)
-{
-	u32 t;
-
-	/* enable WDT reset output on pin SRAM_CS_N */
-	t = rt_sysc_r32(SYSC_REG_SYSTEM_CONFIG);
-	t |= RT305X_SYSCFG_SRAM_CS0_MODE_WDT <<
-		RT305X_SYSCFG_SRAM_CS0_MODE_SHIFT;
-	rt_sysc_w32(t, SYSC_REG_SYSTEM_CONFIG);
-}
-
 static unsigned long rt5350_get_mem_size(void)
 {
 	void __iomem *sysc = (void __iomem *) KSEG1ADDR(RT305X_SYSC_BASE);
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/ralink/rt3883.c linux-libre-4.4.107-gnu/arch/mips/ralink/rt3883.c
--- linux-libre-4.4-gnu/arch/mips/ralink/rt3883.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/ralink/rt3883.c	2017-12-20 04:05:01.000000000 -0500
@@ -36,7 +36,7 @@ static struct rt2880_pmx_func uartlite_f
 static struct rt2880_pmx_func jtag_func[] = { FUNC("jtag", 0, 17, 5) };
 static struct rt2880_pmx_func mdio_func[] = { FUNC("mdio", 0, 22, 2) };
 static struct rt2880_pmx_func lna_a_func[] = { FUNC("lna a", 0, 32, 3) };
-static struct rt2880_pmx_func lna_g_func[] = { FUNC("lna a", 0, 35, 3) };
+static struct rt2880_pmx_func lna_g_func[] = { FUNC("lna g", 0, 35, 3) };
 static struct rt2880_pmx_func pci_func[] = {
 	FUNC("pci-dev", 0, 40, 32),
 	FUNC("pci-host2", 1, 40, 32),
@@ -44,7 +44,7 @@ static struct rt2880_pmx_func pci_func[]
 	FUNC("pci-fnc", 3, 40, 32)
 };
 static struct rt2880_pmx_func ge1_func[] = { FUNC("ge1", 0, 72, 12) };
-static struct rt2880_pmx_func ge2_func[] = { FUNC("ge1", 0, 84, 12) };
+static struct rt2880_pmx_func ge2_func[] = { FUNC("ge2", 0, 84, 12) };
 
 static struct rt2880_pmx_group rt3883_pinmux_data[] = {
 	GRP("i2c", i2c_func, 1, RT3883_GPIO_MODE_I2C),
@@ -63,16 +63,6 @@ static struct rt2880_pmx_group rt3883_pi
 	{ 0 }
 };
 
-static void rt3883_wdt_reset(void)
-{
-	u32 t;
-
-	/* enable WDT reset output on GPIO 2 */
-	t = rt_sysc_r32(RT3883_SYSC_REG_SYSCFG1);
-	t |= RT3883_SYSCFG1_GPIO2_AS_WDT_OUT;
-	rt_sysc_w32(t, RT3883_SYSC_REG_SYSCFG1);
-}
-
 void __init ralink_clk_init(void)
 {
 	unsigned long cpu_rate, sys_rate;
@@ -154,5 +144,5 @@ void prom_soc_init(struct ralink_soc_inf
 
 	rt2880_pinmux_data = rt3883_pinmux_data;
 
-	ralink_soc == RT3883_SOC;
+	ralink_soc = RT3883_SOC;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/sgi-ip22/Platform linux-libre-4.4.107-gnu/arch/mips/sgi-ip22/Platform
--- linux-libre-4.4-gnu/arch/mips/sgi-ip22/Platform	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/sgi-ip22/Platform	2017-12-20 04:05:01.000000000 -0500
@@ -25,7 +25,7 @@ endif
 # Simplified: what IP22 does at 128MB+ in ksegN, IP28 does at 512MB+ in xkphys
 #
 ifdef CONFIG_SGI_IP28
-  ifeq ($(call cc-option-yn,-mr10k-cache-barrier=store), n)
+  ifeq ($(call cc-option-yn,-march=r10000 -mr10k-cache-barrier=store), n)
       $(error gcc doesn't support needed option -mr10k-cache-barrier=store)
   endif
 endif
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mips/vdso/Makefile linux-libre-4.4.107-gnu/arch/mips/vdso/Makefile
--- linux-libre-4.4-gnu/arch/mips/vdso/Makefile	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mips/vdso/Makefile	2017-12-20 04:05:01.000000000 -0500
@@ -5,10 +5,12 @@ obj-vdso-y := elf.o gettimeofday.o sigre
 ccflags-vdso := \
 	$(filter -I%,$(KBUILD_CFLAGS)) \
 	$(filter -E%,$(KBUILD_CFLAGS)) \
+	$(filter -mmicromips,$(KBUILD_CFLAGS)) \
 	$(filter -march=%,$(KBUILD_CFLAGS))
 cflags-vdso := $(ccflags-vdso) \
 	$(filter -W%,$(filter-out -Wa$(comma)%,$(KBUILD_CFLAGS))) \
-	-O2 -g -fPIC -fno-common -fno-builtin -G 0 -DDISABLE_BRANCH_PROFILING \
+	-O2 -g -fPIC -fno-strict-aliasing -fno-common -fno-builtin -G 0 \
+	-DDISABLE_BRANCH_PROFILING \
 	$(call cc-option, -fno-stack-protector)
 aflags-vdso := $(ccflags-vdso) \
 	$(filter -I%,$(KBUILD_CFLAGS)) \
@@ -73,7 +75,7 @@ obj-vdso := $(obj-vdso-y:%.o=$(obj)/%.o)
 $(obj-vdso): KBUILD_CFLAGS := $(cflags-vdso) $(native-abi)
 $(obj-vdso): KBUILD_AFLAGS := $(aflags-vdso) $(native-abi)
 
-$(obj)/vdso.lds: KBUILD_CPPFLAGS := $(native-abi)
+$(obj)/vdso.lds: KBUILD_CPPFLAGS := $(ccflags-vdso) $(native-abi)
 
 $(obj)/vdso.so.dbg: $(obj)/vdso.lds $(obj-vdso) FORCE
 	$(call if_changed,vdsold)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mn10300/include/asm/uaccess.h linux-libre-4.4.107-gnu/arch/mn10300/include/asm/uaccess.h
--- linux-libre-4.4-gnu/arch/mn10300/include/asm/uaccess.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mn10300/include/asm/uaccess.h	2017-12-20 04:05:01.000000000 -0500
@@ -181,6 +181,7 @@ struct __large_struct { unsigned long bu
 		"2:\n"						\
 		"	.section	.fixup,\"ax\"\n"	\
 		"3:\n\t"					\
+		"	mov		0,%1\n"			\
 		"	mov		%3,%0\n"		\
 		"	jmp		2b\n"			\
 		"	.previous\n"				\
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/mn10300/lib/usercopy.c linux-libre-4.4.107-gnu/arch/mn10300/lib/usercopy.c
--- linux-libre-4.4-gnu/arch/mn10300/lib/usercopy.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/mn10300/lib/usercopy.c	2017-12-20 04:05:01.000000000 -0500
@@ -9,7 +9,7 @@
  * as published by the Free Software Foundation; either version
  * 2 of the Licence, or (at your option) any later version.
  */
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
 
 unsigned long
 __generic_copy_to_user(void *to, const void *from, unsigned long n)
@@ -24,6 +24,8 @@ __generic_copy_from_user(void *to, const
 {
 	if (access_ok(VERIFY_READ, from, n))
 		__copy_user_zeroing(to, from, n);
+	else
+		memset(to, 0, n);
 	return n;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/nios2/include/asm/uaccess.h linux-libre-4.4.107-gnu/arch/nios2/include/asm/uaccess.h
--- linux-libre-4.4-gnu/arch/nios2/include/asm/uaccess.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/nios2/include/asm/uaccess.h	2017-12-20 04:05:01.000000000 -0500
@@ -102,9 +102,12 @@ extern long __copy_to_user(void __user *
 static inline long copy_from_user(void *to, const void __user *from,
 				unsigned long n)
 {
-	if (!access_ok(VERIFY_READ, from, n))
-		return n;
-	return __copy_from_user(to, from, n);
+	unsigned long res = n;
+	if (access_ok(VERIFY_READ, from, n))
+		res = __copy_from_user(to, from, n);
+	if (unlikely(res))
+		memset(to + (n - res), 0, res);
+	return res;
 }
 
 static inline long copy_to_user(void __user *to, const void *from,
@@ -139,7 +142,7 @@ extern long strnlen_user(const char __us
 
 #define __get_user_unknown(val, size, ptr, err) do {			\
 	err = 0;							\
-	if (copy_from_user(&(val), ptr, size)) {			\
+	if (__copy_from_user(&(val), ptr, size)) {			\
 		err = -EFAULT;						\
 	}								\
 	} while (0)
@@ -166,7 +169,7 @@ do {									\
 	({								\
 	long __gu_err = -EFAULT;					\
 	const __typeof__(*(ptr)) __user *__gu_ptr = (ptr);		\
-	unsigned long __gu_val;						\
+	unsigned long __gu_val = 0;					\
 	__get_user_common(__gu_val, sizeof(*(ptr)), __gu_ptr, __gu_err);\
 	(x) = (__force __typeof__(x))__gu_val;				\
 	__gu_err;							\
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/nios2/kernel/prom.c linux-libre-4.4.107-gnu/arch/nios2/kernel/prom.c
--- linux-libre-4.4-gnu/arch/nios2/kernel/prom.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/nios2/kernel/prom.c	2017-12-20 04:05:01.000000000 -0500
@@ -48,6 +48,13 @@ void * __init early_init_dt_alloc_memory
 	return alloc_bootmem_align(size, align);
 }
 
+int __init early_init_dt_reserve_memory_arch(phys_addr_t base, phys_addr_t size,
+					     bool nomap)
+{
+	reserve_bootmem(base, size, BOOTMEM_DEFAULT);
+	return 0;
+}
+
 void __init early_init_devtree(void *params)
 {
 	__be32 *dtb = (u32 *)__dtb_start;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/nios2/kernel/setup.c linux-libre-4.4.107-gnu/arch/nios2/kernel/setup.c
--- linux-libre-4.4-gnu/arch/nios2/kernel/setup.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/nios2/kernel/setup.c	2017-12-20 04:05:01.000000000 -0500
@@ -195,6 +195,9 @@ void __init setup_arch(char **cmdline_p)
 	}
 #endif /* CONFIG_BLK_DEV_INITRD */
 
+	early_init_fdt_reserve_self();
+	early_init_fdt_scan_reserved_mem();
+
 	unflatten_and_copy_device_tree();
 
 	setup_cpuinfo();
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/openrisc/include/asm/uaccess.h linux-libre-4.4.107-gnu/arch/openrisc/include/asm/uaccess.h
--- linux-libre-4.4-gnu/arch/openrisc/include/asm/uaccess.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/openrisc/include/asm/uaccess.h	2017-12-20 04:05:01.000000000 -0500
@@ -215,7 +215,7 @@ do {									\
 	case 1: __get_user_asm(x, ptr, retval, "l.lbz"); break;		\
 	case 2: __get_user_asm(x, ptr, retval, "l.lhz"); break;		\
 	case 4: __get_user_asm(x, ptr, retval, "l.lwz"); break;		\
-	case 8: __get_user_asm2(x, ptr, retval);			\
+	case 8: __get_user_asm2(x, ptr, retval); break;			\
 	default: (x) = __get_user_bad();				\
 	}								\
 } while (0)
@@ -273,28 +273,20 @@ __copy_tofrom_user(void *to, const void
 static inline unsigned long
 copy_from_user(void *to, const void *from, unsigned long n)
 {
-	unsigned long over;
+	unsigned long res = n;
 
-	if (access_ok(VERIFY_READ, from, n))
-		return __copy_tofrom_user(to, from, n);
-	if ((unsigned long)from < TASK_SIZE) {
-		over = (unsigned long)from + n - TASK_SIZE;
-		return __copy_tofrom_user(to, from, n - over) + over;
-	}
-	return n;
+	if (likely(access_ok(VERIFY_READ, from, n)))
+		res = __copy_tofrom_user(to, from, n);
+	if (unlikely(res))
+		memset(to + (n - res), 0, res);
+	return res;
 }
 
 static inline unsigned long
 copy_to_user(void *to, const void *from, unsigned long n)
 {
-	unsigned long over;
-
-	if (access_ok(VERIFY_WRITE, to, n))
-		return __copy_tofrom_user(to, from, n);
-	if ((unsigned long)to < TASK_SIZE) {
-		over = (unsigned long)to + n - TASK_SIZE;
-		return __copy_tofrom_user(to, from, n - over) + over;
-	}
+	if (likely(access_ok(VERIFY_WRITE, to, n)))
+		n = __copy_tofrom_user(to, from, n);
 	return n;
 }
 
@@ -303,13 +295,8 @@ extern unsigned long __clear_user(void *
 static inline __must_check unsigned long
 clear_user(void *addr, unsigned long size)
 {
-
-	if (access_ok(VERIFY_WRITE, addr, size))
-		return __clear_user(addr, size);
-	if ((unsigned long)addr < TASK_SIZE) {
-		unsigned long over = (unsigned long)addr + size - TASK_SIZE;
-		return __clear_user(addr, size - over) + over;
-	}
+	if (likely(access_ok(VERIFY_WRITE, addr, size)))
+		size = __clear_user(addr, size);
 	return size;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/openrisc/kernel/vmlinux.lds.S linux-libre-4.4.107-gnu/arch/openrisc/kernel/vmlinux.lds.S
--- linux-libre-4.4-gnu/arch/openrisc/kernel/vmlinux.lds.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/openrisc/kernel/vmlinux.lds.S	2017-12-20 04:05:01.000000000 -0500
@@ -38,6 +38,8 @@ SECTIONS
         /* Read-only sections, merged into text segment: */
         . = LOAD_BASE ;
 
+	_text = .;
+
 	/* _s_kernel_ro must be page aligned */
 	. = ALIGN(PAGE_SIZE);
 	_s_kernel_ro = .;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/parisc/include/asm/bitops.h linux-libre-4.4.107-gnu/arch/parisc/include/asm/bitops.h
--- linux-libre-4.4-gnu/arch/parisc/include/asm/bitops.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/parisc/include/asm/bitops.h	2017-12-20 04:05:01.000000000 -0500
@@ -6,7 +6,7 @@
 #endif
 
 #include <linux/compiler.h>
-#include <asm/types.h>		/* for BITS_PER_LONG/SHIFT_PER_LONG */
+#include <asm/types.h>
 #include <asm/byteorder.h>
 #include <asm/barrier.h>
 #include <linux/atomic.h>
@@ -17,6 +17,12 @@
  * to include/asm-i386/bitops.h or kerneldoc
  */
 
+#if __BITS_PER_LONG == 64
+#define SHIFT_PER_LONG 6
+#else
+#define SHIFT_PER_LONG 5
+#endif
+
 #define CHOP_SHIFTCOUNT(x) (((unsigned long) (x)) & (BITS_PER_LONG - 1))
 
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/parisc/include/asm/dma-mapping.h linux-libre-4.4.107-gnu/arch/parisc/include/asm/dma-mapping.h
--- linux-libre-4.4-gnu/arch/parisc/include/asm/dma-mapping.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/parisc/include/asm/dma-mapping.h	2017-12-20 04:05:01.000000000 -0500
@@ -39,6 +39,8 @@ struct hppa_dma_ops {
 ** flush/purge and allocate "regular" cacheable pages for everything.
 */
 
+#define DMA_ERROR_CODE	(~(dma_addr_t)0)
+
 #ifdef CONFIG_PA11
 extern struct hppa_dma_ops pcxl_dma_ops;
 extern struct hppa_dma_ops pcx_dma_ops;
@@ -209,12 +211,13 @@ parisc_walk_tree(struct device *dev)
 			break;
 		}
 	}
-	BUG_ON(!dev->platform_data);
 	return dev->platform_data;
 }
-		
-#define GET_IOC(dev) (HBA_DATA(parisc_walk_tree(dev))->iommu)
-	
+
+#define GET_IOC(dev) ({					\
+	void *__pdata = parisc_walk_tree(dev);		\
+	__pdata ? HBA_DATA(__pdata)->iommu : NULL;	\
+})
 
 #ifdef CONFIG_IOMMU_CCIO
 struct parisc_device;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/parisc/include/asm/hugetlb.h linux-libre-4.4.107-gnu/arch/parisc/include/asm/hugetlb.h
--- linux-libre-4.4-gnu/arch/parisc/include/asm/hugetlb.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/parisc/include/asm/hugetlb.h	2017-12-20 04:05:01.000000000 -0500
@@ -54,24 +54,12 @@ static inline pte_t huge_pte_wrprotect(p
 	return pte_wrprotect(pte);
 }
 
-static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
-					   unsigned long addr, pte_t *ptep)
-{
-	pte_t old_pte = *ptep;
-	set_huge_pte_at(mm, addr, ptep, pte_wrprotect(old_pte));
-}
+void huge_ptep_set_wrprotect(struct mm_struct *mm,
+					   unsigned long addr, pte_t *ptep);
 
-static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
+int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 					     unsigned long addr, pte_t *ptep,
-					     pte_t pte, int dirty)
-{
-	int changed = !pte_same(*ptep, pte);
-	if (changed) {
-		set_huge_pte_at(vma->vm_mm, addr, ptep, pte);
-		flush_tlb_page(vma, addr);
-	}
-	return changed;
-}
+					     pte_t pte, int dirty);
 
 static inline pte_t huge_ptep_get(pte_t *ptep)
 {
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/parisc/include/asm/mmu_context.h linux-libre-4.4.107-gnu/arch/parisc/include/asm/mmu_context.h
--- linux-libre-4.4-gnu/arch/parisc/include/asm/mmu_context.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/parisc/include/asm/mmu_context.h	2017-12-20 04:05:01.000000000 -0500
@@ -49,15 +49,26 @@ static inline void load_context(mm_conte
 	mtctl(__space_to_prot(context), 8);
 }
 
-static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next, struct task_struct *tsk)
+static inline void switch_mm_irqs_off(struct mm_struct *prev,
+		struct mm_struct *next, struct task_struct *tsk)
 {
-
 	if (prev != next) {
 		mtctl(__pa(next->pgd), 25);
 		load_context(next->context);
 	}
 }
 
+static inline void switch_mm(struct mm_struct *prev,
+		struct mm_struct *next, struct task_struct *tsk)
+{
+	unsigned long flags;
+
+	local_irq_save(flags);
+	switch_mm_irqs_off(prev, next, tsk);
+	local_irq_restore(flags);
+}
+#define switch_mm_irqs_off switch_mm_irqs_off
+
 #define deactivate_mm(tsk,mm)	do { } while (0)
 
 static inline void activate_mm(struct mm_struct *prev, struct mm_struct *next)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/parisc/include/asm/pgtable.h linux-libre-4.4.107-gnu/arch/parisc/include/asm/pgtable.h
--- linux-libre-4.4-gnu/arch/parisc/include/asm/pgtable.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/parisc/include/asm/pgtable.h	2017-12-20 04:05:01.000000000 -0500
@@ -65,9 +65,9 @@ static inline void purge_tlb_entries(str
 		unsigned long flags;				\
 		spin_lock_irqsave(&pa_tlb_lock, flags);		\
 		old_pte = *ptep;				\
-		set_pte(ptep, pteval);				\
 		if (pte_inserted(old_pte))			\
 			purge_tlb_entries(mm, addr);		\
+		set_pte(ptep, pteval);				\
 		spin_unlock_irqrestore(&pa_tlb_lock, flags);	\
 	} while (0)
 
@@ -83,10 +83,10 @@ static inline void purge_tlb_entries(str
 	printk("%s:%d: bad pgd %08lx.\n", __FILE__, __LINE__, (unsigned long)pgd_val(e))
 
 /* This is the size of the initially mapped kernel memory */
-#ifdef CONFIG_64BIT
-#define KERNEL_INITIAL_ORDER	25	/* 1<<25 = 32MB */
+#if defined(CONFIG_64BIT)
+#define KERNEL_INITIAL_ORDER	26	/* 1<<26 = 64MB */
 #else
-#define KERNEL_INITIAL_ORDER	24	/* 1<<24 = 16MB */
+#define KERNEL_INITIAL_ORDER	25	/* 1<<25 = 32MB */
 #endif
 #define KERNEL_INITIAL_SIZE	(1 << KERNEL_INITIAL_ORDER)
 
@@ -478,8 +478,8 @@ static inline int ptep_test_and_clear_yo
 		spin_unlock_irqrestore(&pa_tlb_lock, flags);
 		return 0;
 	}
-	set_pte(ptep, pte_mkold(pte));
 	purge_tlb_entries(vma->vm_mm, addr);
+	set_pte(ptep, pte_mkold(pte));
 	spin_unlock_irqrestore(&pa_tlb_lock, flags);
 	return 1;
 }
@@ -492,9 +492,9 @@ static inline pte_t ptep_get_and_clear(s
 
 	spin_lock_irqsave(&pa_tlb_lock, flags);
 	old_pte = *ptep;
-	set_pte(ptep, __pte(0));
 	if (pte_inserted(old_pte))
 		purge_tlb_entries(mm, addr);
+	set_pte(ptep, __pte(0));
 	spin_unlock_irqrestore(&pa_tlb_lock, flags);
 
 	return old_pte;
@@ -504,8 +504,8 @@ static inline void ptep_set_wrprotect(st
 {
 	unsigned long flags;
 	spin_lock_irqsave(&pa_tlb_lock, flags);
-	set_pte(ptep, pte_wrprotect(*ptep));
 	purge_tlb_entries(mm, addr);
+	set_pte(ptep, pte_wrprotect(*ptep));
 	spin_unlock_irqrestore(&pa_tlb_lock, flags);
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/parisc/include/asm/uaccess.h linux-libre-4.4.107-gnu/arch/parisc/include/asm/uaccess.h
--- linux-libre-4.4-gnu/arch/parisc/include/asm/uaccess.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/parisc/include/asm/uaccess.h	2017-12-20 04:05:01.000000000 -0500
@@ -10,6 +10,7 @@
 #include <asm-generic/uaccess-unaligned.h>
 
 #include <linux/bug.h>
+#include <linux/string.h>
 
 #define VERIFY_READ 0
 #define VERIFY_WRITE 1
@@ -76,6 +77,7 @@ struct exception_table_entry {
  */
 struct exception_data {
 	unsigned long fault_ip;
+	unsigned long fault_gp;
 	unsigned long fault_space;
 	unsigned long fault_addr;
 };
@@ -244,13 +246,14 @@ static inline unsigned long __must_check
                                           unsigned long n)
 {
         int sz = __compiletime_object_size(to);
-        int ret = -EFAULT;
+        unsigned long ret = n;
 
         if (likely(sz == -1 || !__builtin_constant_p(n) || sz >= n))
                 ret = __copy_from_user(to, from, n);
         else
                 copy_from_user_overflow();
-
+	if (unlikely(ret))
+		memset(to + (n - ret), 0, ret);
         return ret;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/parisc/include/uapi/asm/bitsperlong.h linux-libre-4.4.107-gnu/arch/parisc/include/uapi/asm/bitsperlong.h
--- linux-libre-4.4-gnu/arch/parisc/include/uapi/asm/bitsperlong.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/parisc/include/uapi/asm/bitsperlong.h	2017-12-20 04:05:01.000000000 -0500
@@ -3,10 +3,8 @@
 
 #if defined(__LP64__)
 #define __BITS_PER_LONG 64
-#define SHIFT_PER_LONG 6
 #else
 #define __BITS_PER_LONG 32
-#define SHIFT_PER_LONG 5
 #endif
 
 #include <asm-generic/bitsperlong.h>
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/parisc/include/uapi/asm/errno.h linux-libre-4.4.107-gnu/arch/parisc/include/uapi/asm/errno.h
--- linux-libre-4.4-gnu/arch/parisc/include/uapi/asm/errno.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/parisc/include/uapi/asm/errno.h	2017-12-20 04:05:01.000000000 -0500
@@ -97,10 +97,10 @@
 #define	ENOTCONN	235	/* Transport endpoint is not connected */
 #define	ESHUTDOWN	236	/* Cannot send after transport endpoint shutdown */
 #define	ETOOMANYREFS	237	/* Too many references: cannot splice */
-#define EREFUSED	ECONNREFUSED	/* for HP's NFS apparently */
 #define	ETIMEDOUT	238	/* Connection timed out */
 #define	ECONNREFUSED	239	/* Connection refused */
-#define EREMOTERELEASE	240	/* Remote peer released connection */
+#define	EREFUSED	ECONNREFUSED	/* for HP's NFS apparently */
+#define	EREMOTERELEASE	240	/* Remote peer released connection */
 #define	EHOSTDOWN	241	/* Host is down */
 #define	EHOSTUNREACH	242	/* No route to host */
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/parisc/include/uapi/asm/siginfo.h linux-libre-4.4.107-gnu/arch/parisc/include/uapi/asm/siginfo.h
--- linux-libre-4.4-gnu/arch/parisc/include/uapi/asm/siginfo.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/parisc/include/uapi/asm/siginfo.h	2017-12-20 04:05:01.000000000 -0500
@@ -1,6 +1,10 @@
 #ifndef _PARISC_SIGINFO_H
 #define _PARISC_SIGINFO_H
 
+#if defined(__LP64__)
+#define __ARCH_SI_PREAMBLE_SIZE   (4 * sizeof(int))
+#endif
+
 #include <asm-generic/siginfo.h>
 
 #undef NSIGTRAP
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/parisc/include/uapi/asm/swab.h linux-libre-4.4.107-gnu/arch/parisc/include/uapi/asm/swab.h
--- linux-libre-4.4-gnu/arch/parisc/include/uapi/asm/swab.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/parisc/include/uapi/asm/swab.h	2017-12-20 04:05:01.000000000 -0500
@@ -1,6 +1,7 @@
 #ifndef _PARISC_SWAB_H
 #define _PARISC_SWAB_H
 
+#include <asm/bitsperlong.h>
 #include <linux/types.h>
 #include <linux/compiler.h>
 
@@ -38,7 +39,7 @@ static inline __attribute_const__ __u32
 }
 #define __arch_swab32 __arch_swab32
 
-#if BITS_PER_LONG > 32
+#if __BITS_PER_LONG > 32
 /*
 ** From "PA-RISC 2.0 Architecture", HP Professional Books.
 ** See Appendix I page 8 , "Endian Byte Swapping".
@@ -61,6 +62,6 @@ static inline __attribute_const__ __u64
 	return x;
 }
 #define __arch_swab64 __arch_swab64
-#endif /* BITS_PER_LONG > 32 */
+#endif /* __BITS_PER_LONG > 32 */
 
 #endif /* _PARISC_SWAB_H */
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/parisc/kernel/asm-offsets.c linux-libre-4.4.107-gnu/arch/parisc/kernel/asm-offsets.c
--- linux-libre-4.4-gnu/arch/parisc/kernel/asm-offsets.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/parisc/kernel/asm-offsets.c	2017-12-20 04:05:01.000000000 -0500
@@ -299,6 +299,7 @@ int main(void)
 #endif
 	BLANK();
 	DEFINE(EXCDATA_IP, offsetof(struct exception_data, fault_ip));
+	DEFINE(EXCDATA_GP, offsetof(struct exception_data, fault_gp));
 	DEFINE(EXCDATA_SPACE, offsetof(struct exception_data, fault_space));
 	DEFINE(EXCDATA_ADDR, offsetof(struct exception_data, fault_addr));
 	BLANK();
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/parisc/kernel/cache.c linux-libre-4.4.107-gnu/arch/parisc/kernel/cache.c
--- linux-libre-4.4-gnu/arch/parisc/kernel/cache.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/parisc/kernel/cache.c	2017-12-20 04:05:01.000000000 -0500
@@ -351,6 +351,7 @@ void __init parisc_setup_cache_timing(vo
 {
 	unsigned long rangetime, alltime;
 	unsigned long size, start;
+	unsigned long threshold;
 
 	alltime = mfctl(16);
 	flush_data_cache();
@@ -364,26 +365,30 @@ void __init parisc_setup_cache_timing(vo
 	printk(KERN_DEBUG "Whole cache flush %lu cycles, flushing %lu bytes %lu cycles\n",
 		alltime, size, rangetime);
 
-	/* Racy, but if we see an intermediate value, it's ok too... */
-	parisc_cache_flush_threshold = size * alltime / rangetime;
-
-	parisc_cache_flush_threshold = L1_CACHE_ALIGN(parisc_cache_flush_threshold);
-	if (!parisc_cache_flush_threshold)
-		parisc_cache_flush_threshold = FLUSH_THRESHOLD;
-
-	if (parisc_cache_flush_threshold > cache_info.dc_size)
-		parisc_cache_flush_threshold = cache_info.dc_size;
-
-	printk(KERN_INFO "Setting cache flush threshold to %lu kB\n",
+	threshold = L1_CACHE_ALIGN(size * alltime / rangetime);
+	if (threshold > cache_info.dc_size)
+		threshold = cache_info.dc_size;
+	if (threshold)
+		parisc_cache_flush_threshold = threshold;
+	printk(KERN_INFO "Cache flush threshold set to %lu KiB\n",
 		parisc_cache_flush_threshold/1024);
 
 	/* calculate TLB flush threshold */
 
+	/* On SMP machines, skip the TLB measure of kernel text which
+	 * has been mapped as huge pages. */
+	if (num_online_cpus() > 1 && !parisc_requires_coherency()) {
+		threshold = max(cache_info.it_size, cache_info.dt_size);
+		threshold *= PAGE_SIZE;
+		threshold /= num_online_cpus();
+		goto set_tlb_threshold;
+	}
+
 	alltime = mfctl(16);
 	flush_tlb_all();
 	alltime = mfctl(16) - alltime;
 
-	size = PAGE_SIZE;
+	size = 0;
 	start = (unsigned long) _text;
 	rangetime = mfctl(16);
 	while (start < (unsigned long) _end) {
@@ -396,13 +401,12 @@ void __init parisc_setup_cache_timing(vo
 	printk(KERN_DEBUG "Whole TLB flush %lu cycles, flushing %lu bytes %lu cycles\n",
 		alltime, size, rangetime);
 
-	parisc_tlb_flush_threshold = size * alltime / rangetime;
-	parisc_tlb_flush_threshold *= num_online_cpus();
-	parisc_tlb_flush_threshold = PAGE_ALIGN(parisc_tlb_flush_threshold);
-	if (!parisc_tlb_flush_threshold)
-		parisc_tlb_flush_threshold = FLUSH_TLB_THRESHOLD;
+	threshold = PAGE_ALIGN(num_online_cpus() * size * alltime / rangetime);
 
-	printk(KERN_INFO "Setting TLB flush threshold to %lu kB\n",
+set_tlb_threshold:
+	if (threshold)
+		parisc_tlb_flush_threshold = threshold;
+	printk(KERN_INFO "TLB flush threshold set to %lu KiB\n",
 		parisc_tlb_flush_threshold/1024);
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/parisc/kernel/pacache.S linux-libre-4.4.107-gnu/arch/parisc/kernel/pacache.S
--- linux-libre-4.4-gnu/arch/parisc/kernel/pacache.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/parisc/kernel/pacache.S	2017-12-20 04:05:01.000000000 -0500
@@ -96,7 +96,7 @@ fitmanyloop:					/* Loop if LOOP >= 2 */
 
 fitmanymiddle:					/* Loop if LOOP >= 2 */
 	addib,COND(>)		-1, %r31, fitmanymiddle	/* Adjusted inner loop decr */
-	pitlbe		0(%sr1, %r28)
+	pitlbe		%r0(%sr1, %r28)
 	pitlbe,m	%arg1(%sr1, %r28)	/* Last pitlbe and addr adjust */
 	addib,COND(>)		-1, %r29, fitmanymiddle	/* Middle loop decr */
 	copy		%arg3, %r31		/* Re-init inner loop count */
@@ -139,7 +139,7 @@ fdtmanyloop:					/* Loop if LOOP >= 2 */
 
 fdtmanymiddle:					/* Loop if LOOP >= 2 */
 	addib,COND(>)		-1, %r31, fdtmanymiddle	/* Adjusted inner loop decr */
-	pdtlbe		0(%sr1, %r28)
+	pdtlbe		%r0(%sr1, %r28)
 	pdtlbe,m	%arg1(%sr1, %r28)	/* Last pdtlbe and addr adjust */
 	addib,COND(>)		-1, %r29, fdtmanymiddle	/* Middle loop decr */
 	copy		%arg3, %r31		/* Re-init inner loop count */
@@ -620,12 +620,12 @@ ENTRY(copy_user_page_asm)
 	/* Purge any old translations */
 
 #ifdef CONFIG_PA20
-	pdtlb,l		0(%r28)
-	pdtlb,l		0(%r29)
+	pdtlb,l		%r0(%r28)
+	pdtlb,l		%r0(%r29)
 #else
 	tlb_lock	%r20,%r21,%r22
-	pdtlb		0(%r28)
-	pdtlb		0(%r29)
+	pdtlb		%r0(%r28)
+	pdtlb		%r0(%r29)
 	tlb_unlock	%r20,%r21,%r22
 #endif
 
@@ -768,10 +768,10 @@ ENTRY(clear_user_page_asm)
 	/* Purge any old translation */
 
 #ifdef CONFIG_PA20
-	pdtlb,l		0(%r28)
+	pdtlb,l		%r0(%r28)
 #else
 	tlb_lock	%r20,%r21,%r22
-	pdtlb		0(%r28)
+	pdtlb		%r0(%r28)
 	tlb_unlock	%r20,%r21,%r22
 #endif
 
@@ -852,10 +852,10 @@ ENTRY(flush_dcache_page_asm)
 	/* Purge any old translation */
 
 #ifdef CONFIG_PA20
-	pdtlb,l		0(%r28)
+	pdtlb,l		%r0(%r28)
 #else
 	tlb_lock	%r20,%r21,%r22
-	pdtlb		0(%r28)
+	pdtlb		%r0(%r28)
 	tlb_unlock	%r20,%r21,%r22
 #endif
 
@@ -886,19 +886,10 @@ ENTRY(flush_dcache_page_asm)
 	fdc,m		r31(%r28)
 	fdc,m		r31(%r28)
 	fdc,m		r31(%r28)
-	cmpb,COND(<<)		%r28, %r25,1b
+	cmpb,COND(<<)	%r28, %r25,1b
 	fdc,m		r31(%r28)
 
 	sync
-
-#ifdef CONFIG_PA20
-	pdtlb,l		0(%r25)
-#else
-	tlb_lock	%r20,%r21,%r22
-	pdtlb		0(%r25)
-	tlb_unlock	%r20,%r21,%r22
-#endif
-
 	bv		%r0(%r2)
 	nop
 	.exit
@@ -925,13 +916,18 @@ ENTRY(flush_icache_page_asm)
 	depwi		0, 31,PAGE_SHIFT, %r28	/* Clear any offset bits */
 #endif
 
-	/* Purge any old translation */
+	/* Purge any old translation.  Note that the FIC instruction
+	 * may use either the instruction or data TLB.  Given that we
+	 * have a flat address space, it's not clear which TLB will be
+	 * used.  So, we purge both entries.  */
 
 #ifdef CONFIG_PA20
+	pdtlb,l		%r0(%r28)
 	pitlb,l         %r0(%sr4,%r28)
 #else
 	tlb_lock        %r20,%r21,%r22
-	pitlb           (%sr4,%r28)
+	pdtlb		%r0(%r28)
+	pitlb           %r0(%sr4,%r28)
 	tlb_unlock      %r20,%r21,%r22
 #endif
 
@@ -968,15 +964,6 @@ ENTRY(flush_icache_page_asm)
 	fic,m		%r31(%sr4,%r28)
 
 	sync
-
-#ifdef CONFIG_PA20
-	pitlb,l         %r0(%sr4,%r25)
-#else
-	tlb_lock        %r20,%r21,%r22
-	pitlb           (%sr4,%r25)
-	tlb_unlock      %r20,%r21,%r22
-#endif
-
 	bv		%r0(%r2)
 	nop
 	.exit
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/parisc/kernel/parisc_ksyms.c linux-libre-4.4.107-gnu/arch/parisc/kernel/parisc_ksyms.c
--- linux-libre-4.4-gnu/arch/parisc/kernel/parisc_ksyms.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/parisc/kernel/parisc_ksyms.c	2017-12-20 04:05:01.000000000 -0500
@@ -47,11 +47,11 @@ EXPORT_SYMBOL(__cmpxchg_u64);
 EXPORT_SYMBOL(lclear_user);
 EXPORT_SYMBOL(lstrnlen_user);
 
-/* Global fixups */
-extern void fixup_get_user_skip_1(void);
-extern void fixup_get_user_skip_2(void);
-extern void fixup_put_user_skip_1(void);
-extern void fixup_put_user_skip_2(void);
+/* Global fixups - defined as int to avoid creation of function pointers */
+extern int fixup_get_user_skip_1;
+extern int fixup_get_user_skip_2;
+extern int fixup_put_user_skip_1;
+extern int fixup_put_user_skip_2;
 EXPORT_SYMBOL(fixup_get_user_skip_1);
 EXPORT_SYMBOL(fixup_get_user_skip_2);
 EXPORT_SYMBOL(fixup_put_user_skip_1);
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/parisc/kernel/pci-dma.c linux-libre-4.4.107-gnu/arch/parisc/kernel/pci-dma.c
--- linux-libre-4.4-gnu/arch/parisc/kernel/pci-dma.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/parisc/kernel/pci-dma.c	2017-12-20 04:05:01.000000000 -0500
@@ -95,8 +95,8 @@ static inline int map_pte_uncached(pte_t
 
 		if (!pte_none(*pte))
 			printk(KERN_ERR "map_pte_uncached: page already exists\n");
-		set_pte(pte, __mk_pte(*paddr_ptr, PAGE_KERNEL_UNC));
 		purge_tlb_start(flags);
+		set_pte(pte, __mk_pte(*paddr_ptr, PAGE_KERNEL_UNC));
 		pdtlb_kernel(orig_vaddr);
 		purge_tlb_end(flags);
 		vaddr += PAGE_SIZE;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/parisc/kernel/perf.c linux-libre-4.4.107-gnu/arch/parisc/kernel/perf.c
--- linux-libre-4.4-gnu/arch/parisc/kernel/perf.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/parisc/kernel/perf.c	2017-12-20 04:05:01.000000000 -0500
@@ -39,7 +39,7 @@
  *  the PDC INTRIGUE calls.  This is done to eliminate bugs introduced
  *  in various PDC revisions.  The code is much more maintainable
  *  and reliable this way vs having to debug on every version of PDC
- *  on every box. 
+ *  on every box.
  */
 
 #include <linux/capability.h>
@@ -195,8 +195,8 @@ static int perf_config(uint32_t *image_p
 static int perf_release(struct inode *inode, struct file *file);
 static int perf_open(struct inode *inode, struct file *file);
 static ssize_t perf_read(struct file *file, char __user *buf, size_t cnt, loff_t *ppos);
-static ssize_t perf_write(struct file *file, const char __user *buf, size_t count, 
-	loff_t *ppos);
+static ssize_t perf_write(struct file *file, const char __user *buf,
+	size_t count, loff_t *ppos);
 static long perf_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
 static void perf_start_counters(void);
 static int perf_stop_counters(uint32_t *raddr);
@@ -222,7 +222,7 @@ extern void perf_intrigue_disable_perf_c
 /*
  * configure:
  *
- * Configure the cpu with a given data image.  First turn off the counters, 
+ * Configure the cpu with a given data image.  First turn off the counters,
  * then download the image, then turn the counters back on.
  */
 static int perf_config(uint32_t *image_ptr)
@@ -234,7 +234,7 @@ static int perf_config(uint32_t *image_p
 	error = perf_stop_counters(raddr);
 	if (error != 0) {
 		printk("perf_config: perf_stop_counters = %ld\n", error);
-		return -EINVAL; 
+		return -EINVAL;
 	}
 
 printk("Preparing to write image\n");
@@ -242,7 +242,7 @@ printk("Preparing to write image\n");
 	error = perf_write_image((uint64_t *)image_ptr);
 	if (error != 0) {
 		printk("perf_config: DOWNLOAD = %ld\n", error);
-		return -EINVAL; 
+		return -EINVAL;
 	}
 
 printk("Preparing to start counters\n");
@@ -254,7 +254,7 @@ printk("Preparing to start counters\n");
 }
 
 /*
- * Open the device and initialize all of its memory.  The device is only 
+ * Open the device and initialize all of its memory.  The device is only
  * opened once, but can be "queried" by multiple processes that know its
  * file descriptor.
  */
@@ -298,8 +298,8 @@ static ssize_t perf_read(struct file *fi
  * called on the processor that the download should happen
  * on.
  */
-static ssize_t perf_write(struct file *file, const char __user *buf, size_t count, 
-	loff_t *ppos)
+static ssize_t perf_write(struct file *file, const char __user *buf,
+	size_t count, loff_t *ppos)
 {
 	int err;
 	size_t image_size;
@@ -307,11 +307,11 @@ static ssize_t perf_write(struct file *f
 	uint32_t interface_type;
 	uint32_t test;
 
-	if (perf_processor_interface == ONYX_INTF) 
+	if (perf_processor_interface == ONYX_INTF)
 		image_size = PCXU_IMAGE_SIZE;
-	else if (perf_processor_interface == CUDA_INTF) 
+	else if (perf_processor_interface == CUDA_INTF)
 		image_size = PCXW_IMAGE_SIZE;
-	else 
+	else
 		return -EFAULT;
 
 	if (!capable(CAP_SYS_ADMIN))
@@ -331,22 +331,22 @@ static ssize_t perf_write(struct file *f
 
 	/* First check the machine type is correct for
 	   the requested image */
-        if (((perf_processor_interface == CUDA_INTF) &&
-		       (interface_type != CUDA_INTF)) ||
-	    ((perf_processor_interface == ONYX_INTF) &&
-	               (interface_type != ONYX_INTF))) 
+	if (((perf_processor_interface == CUDA_INTF) &&
+			(interface_type != CUDA_INTF)) ||
+		((perf_processor_interface == ONYX_INTF) &&
+			(interface_type != ONYX_INTF)))
 		return -EINVAL;
 
 	/* Next check to make sure the requested image
 	   is valid */
-	if (((interface_type == CUDA_INTF) && 
+	if (((interface_type == CUDA_INTF) &&
 		       (test >= MAX_CUDA_IMAGES)) ||
-	    ((interface_type == ONYX_INTF) && 
-		       (test >= MAX_ONYX_IMAGES))) 
+	    ((interface_type == ONYX_INTF) &&
+		       (test >= MAX_ONYX_IMAGES)))
 		return -EINVAL;
 
 	/* Copy the image into the processor */
-	if (interface_type == CUDA_INTF) 
+	if (interface_type == CUDA_INTF)
 		return perf_config(cuda_images[test]);
 	else
 		return perf_config(onyx_images[test]);
@@ -360,7 +360,7 @@ static ssize_t perf_write(struct file *f
 static void perf_patch_images(void)
 {
 #if 0 /* FIXME!! */
-/* 
+/*
  * NOTE:  this routine is VERY specific to the current TLB image.
  * If the image is changed, this routine might also need to be changed.
  */
@@ -368,9 +368,9 @@ static void perf_patch_images(void)
 	extern void $i_dtlb_miss_2_0();
 	extern void PA2_0_iva();
 
-	/* 
+	/*
 	 * We can only use the lower 32-bits, the upper 32-bits should be 0
-	 * anyway given this is in the kernel 
+	 * anyway given this is in the kernel
 	 */
 	uint32_t itlb_addr  = (uint32_t)&($i_itlb_miss_2_0);
 	uint32_t dtlb_addr  = (uint32_t)&($i_dtlb_miss_2_0);
@@ -378,21 +378,21 @@ static void perf_patch_images(void)
 
 	if (perf_processor_interface == ONYX_INTF) {
 		/* clear last 2 bytes */
-		onyx_images[TLBMISS][15] &= 0xffffff00;  
+		onyx_images[TLBMISS][15] &= 0xffffff00;
 		/* set 2 bytes */
 		onyx_images[TLBMISS][15] |= (0x000000ff&((dtlb_addr) >> 24));
 		onyx_images[TLBMISS][16] = (dtlb_addr << 8)&0xffffff00;
 		onyx_images[TLBMISS][17] = itlb_addr;
 
 		/* clear last 2 bytes */
-		onyx_images[TLBHANDMISS][15] &= 0xffffff00;  
+		onyx_images[TLBHANDMISS][15] &= 0xffffff00;
 		/* set 2 bytes */
 		onyx_images[TLBHANDMISS][15] |= (0x000000ff&((dtlb_addr) >> 24));
 		onyx_images[TLBHANDMISS][16] = (dtlb_addr << 8)&0xffffff00;
 		onyx_images[TLBHANDMISS][17] = itlb_addr;
 
 		/* clear last 2 bytes */
-		onyx_images[BIG_CPI][15] &= 0xffffff00;  
+		onyx_images[BIG_CPI][15] &= 0xffffff00;
 		/* set 2 bytes */
 		onyx_images[BIG_CPI][15] |= (0x000000ff&((dtlb_addr) >> 24));
 		onyx_images[BIG_CPI][16] = (dtlb_addr << 8)&0xffffff00;
@@ -405,24 +405,24 @@ static void perf_patch_images(void)
 
 	} else if (perf_processor_interface == CUDA_INTF) {
 		/* Cuda interface */
-		cuda_images[TLBMISS][16] =  
+		cuda_images[TLBMISS][16] =
 			(cuda_images[TLBMISS][16]&0xffff0000) |
 			((dtlb_addr >> 8)&0x0000ffff);
-		cuda_images[TLBMISS][17] = 
+		cuda_images[TLBMISS][17] =
 			((dtlb_addr << 24)&0xff000000) | ((itlb_addr >> 16)&0x000000ff);
 		cuda_images[TLBMISS][18] = (itlb_addr << 16)&0xffff0000;
 
-		cuda_images[TLBHANDMISS][16] = 
+		cuda_images[TLBHANDMISS][16] =
 			(cuda_images[TLBHANDMISS][16]&0xffff0000) |
 			((dtlb_addr >> 8)&0x0000ffff);
-		cuda_images[TLBHANDMISS][17] = 
+		cuda_images[TLBHANDMISS][17] =
 			((dtlb_addr << 24)&0xff000000) | ((itlb_addr >> 16)&0x000000ff);
 		cuda_images[TLBHANDMISS][18] = (itlb_addr << 16)&0xffff0000;
 
-		cuda_images[BIG_CPI][16] = 
+		cuda_images[BIG_CPI][16] =
 			(cuda_images[BIG_CPI][16]&0xffff0000) |
 			((dtlb_addr >> 8)&0x0000ffff);
-		cuda_images[BIG_CPI][17] = 
+		cuda_images[BIG_CPI][17] =
 			((dtlb_addr << 24)&0xff000000) | ((itlb_addr >> 16)&0x000000ff);
 		cuda_images[BIG_CPI][18] = (itlb_addr << 16)&0xffff0000;
 	} else {
@@ -434,7 +434,7 @@ static void perf_patch_images(void)
 
 /*
  * ioctl routine
- * All routines effect the processor that they are executed on.  Thus you 
+ * All routines effect the processor that they are executed on.  Thus you
  * must be running on the processor that you wish to change.
  */
 
@@ -460,7 +460,7 @@ static long perf_ioctl(struct file *file
 			}
 
 			/* copy out the Counters */
-			if (copy_to_user((void __user *)arg, raddr, 
+			if (copy_to_user((void __user *)arg, raddr,
 					sizeof (raddr)) != 0) {
 				error =  -EFAULT;
 				break;
@@ -488,7 +488,7 @@ static const struct file_operations perf
 	.open = perf_open,
 	.release = perf_release
 };
-	
+
 static struct miscdevice perf_dev = {
 	MISC_DYNAMIC_MINOR,
 	PA_PERF_DEV,
@@ -596,7 +596,7 @@ static int perf_stop_counters(uint32_t *
 		/* OR sticky2 (bit 1496) to counter2 bit 32 */
 		tmp64 |= (userbuf[23] >> 8) & 0x0000000080000000;
 		raddr[2] = (uint32_t)tmp64;
-		
+
 		/* Counter3 is bits 1497 to 1528 */
 		tmp64 =  (userbuf[23] >> 7) & 0x00000000ffffffff;
 		/* OR sticky3 (bit 1529) to counter3 bit 32 */
@@ -618,7 +618,7 @@ static int perf_stop_counters(uint32_t *
 		userbuf[22] = 0;
 		userbuf[23] = 0;
 
-		/* 
+		/*
 		 * Write back the zeroed bytes + the image given
 		 * the read was destructive.
 		 */
@@ -626,13 +626,13 @@ static int perf_stop_counters(uint32_t *
 	} else {
 
 		/*
-		 * Read RDR-15 which contains the counters and sticky bits 
+		 * Read RDR-15 which contains the counters and sticky bits
 		 */
 		if (!perf_rdr_read_ubuf(15, userbuf)) {
 			return -13;
 		}
 
-		/* 
+		/*
 		 * Clear out the counters
 		 */
 		perf_rdr_clear(15);
@@ -645,7 +645,7 @@ static int perf_stop_counters(uint32_t *
 		raddr[2] = (uint32_t)((userbuf[1] >> 32) & 0x00000000ffffffffUL);
 		raddr[3] = (uint32_t)(userbuf[1] & 0x00000000ffffffffUL);
 	}
- 
+
 	return 0;
 }
 
@@ -683,7 +683,7 @@ static int perf_rdr_read_ubuf(uint32_t	r
 	i = tentry->num_words;
 	while (i--) {
 		buffer[i] = 0;
-	}	
+	}
 
 	/* Check for bits an even number of 64 */
 	if ((xbits = width & 0x03f) != 0) {
@@ -809,18 +809,22 @@ static int perf_write_image(uint64_t *me
 	}
 
 	runway = ioremap_nocache(cpu_device->hpa.start, 4096);
+	if (!runway) {
+		pr_err("perf_write_image: ioremap failed!\n");
+		return -ENOMEM;
+	}
 
 	/* Merge intrigue bits into Runway STATUS 0 */
 	tmp64 = __raw_readq(runway + RUNWAY_STATUS) & 0xffecfffffffffffful;
-	__raw_writeq(tmp64 | (*memaddr++ & 0x0013000000000000ul), 
+	__raw_writeq(tmp64 | (*memaddr++ & 0x0013000000000000ul),
 		     runway + RUNWAY_STATUS);
-	
+
 	/* Write RUNWAY DEBUG registers */
 	for (i = 0; i < 8; i++) {
 		__raw_writeq(*memaddr++, runway + RUNWAY_DEBUG);
 	}
 
-	return 0; 
+	return 0;
 }
 
 /*
@@ -844,7 +848,7 @@ printk("perf_rdr_write\n");
 			perf_rdr_shift_out_U(rdr_num, buffer[i]);
 		} else {
 			perf_rdr_shift_out_W(rdr_num, buffer[i]);
-		}	
+		}
 	}
 printk("perf_rdr_write done\n");
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/parisc/kernel/ptrace.c linux-libre-4.4.107-gnu/arch/parisc/kernel/ptrace.c
--- linux-libre-4.4-gnu/arch/parisc/kernel/ptrace.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/parisc/kernel/ptrace.c	2017-12-20 04:05:01.000000000 -0500
@@ -269,14 +269,19 @@ long compat_arch_ptrace(struct task_stru
 
 long do_syscall_trace_enter(struct pt_regs *regs)
 {
-	long ret = 0;
-
 	/* Do the secure computing check first. */
 	secure_computing_strict(regs->gr[20]);
 
 	if (test_thread_flag(TIF_SYSCALL_TRACE) &&
-	    tracehook_report_syscall_entry(regs))
-		ret = -1L;
+	    tracehook_report_syscall_entry(regs)) {
+		/*
+		 * Tracing decided this syscall should not happen or the
+		 * debugger stored an invalid system call number. Skip
+		 * the system call and the system call restart handling.
+		 */
+		regs->gr[20] = -1UL;
+		goto out;
+	}
 
 #ifdef CONFIG_64BIT
 	if (!is_compat_task())
@@ -290,7 +295,8 @@ long do_syscall_trace_enter(struct pt_re
 			regs->gr[24] & 0xffffffff,
 			regs->gr[23] & 0xffffffff);
 
-	return ret ? : regs->gr[20];
+out:
+	return regs->gr[20];
 }
 
 void do_syscall_trace_exit(struct pt_regs *regs)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/parisc/kernel/setup.c linux-libre-4.4.107-gnu/arch/parisc/kernel/setup.c
--- linux-libre-4.4-gnu/arch/parisc/kernel/setup.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/parisc/kernel/setup.c	2017-12-20 04:05:01.000000000 -0500
@@ -38,6 +38,7 @@
 #include <linux/export.h>
 
 #include <asm/processor.h>
+#include <asm/sections.h>
 #include <asm/pdc.h>
 #include <asm/led.h>
 #include <asm/machdep.h>	/* for pa7300lc_init() proto */
@@ -140,6 +141,13 @@ void __init setup_arch(char **cmdline_p)
 #endif
 	printk(KERN_CONT ".\n");
 
+	/*
+	 * Check if initial kernel page mappings are sufficient.
+	 * panic early if not, else we may access kernel functions
+	 * and variables which can't be reached.
+	 */
+	if (__pa((unsigned long) &_end) >= KERNEL_INITIAL_SIZE)
+		panic("KERNEL_INITIAL_ORDER too small!");
 
 	pdc_console_init();
 
@@ -326,6 +334,10 @@ static int __init parisc_init(void)
 	/* tell PDC we're Linux. Nevermind failure. */
 	pdc_stable_write(0x40, &osid, sizeof(osid));
 	
+	/* start with known state */
+	flush_cache_all_local();
+	flush_tlb_all_local(NULL);
+
 	processor_init();
 #ifdef CONFIG_SMP
 	pr_info("CPU(s): %d out of %d %s at %d.%06d MHz online\n",
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/parisc/kernel/syscall.S linux-libre-4.4.107-gnu/arch/parisc/kernel/syscall.S
--- linux-libre-4.4-gnu/arch/parisc/kernel/syscall.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/parisc/kernel/syscall.S	2017-12-20 04:05:01.000000000 -0500
@@ -106,8 +106,6 @@ linux_gateway_entry:
 	mtsp	%r0,%sr4			/* get kernel space into sr4 */
 	mtsp	%r0,%sr5			/* get kernel space into sr5 */
 	mtsp	%r0,%sr6			/* get kernel space into sr6 */
-	mfsp    %sr7,%r1                        /* save user sr7 */
-	mtsp    %r1,%sr3                        /* and store it in sr3 */
 
 #ifdef CONFIG_64BIT
 	/* for now we can *always* set the W bit on entry to the syscall
@@ -133,6 +131,14 @@ linux_gateway_entry:
 	depdi	0, 31, 32, %r21
 1:	
 #endif
+
+	/* We use a rsm/ssm pair to prevent sr3 from being clobbered
+	 * by external interrupts.
+	 */
+	mfsp    %sr7,%r1                        /* save user sr7 */
+	rsm	PSW_SM_I, %r0			/* disable interrupts */
+	mtsp    %r1,%sr3                        /* and store it in sr3 */
+
 	mfctl   %cr30,%r1
 	xor     %r1,%r30,%r30                   /* ye olde xor trick */
 	xor     %r1,%r30,%r1
@@ -147,6 +153,7 @@ linux_gateway_entry:
 	 */
 
 	mtsp	%r0,%sr7			/* get kernel space into sr7 */
+	ssm	PSW_SM_I, %r0			/* enable interrupts */
 	STREGM	%r1,FRAME_SIZE(%r30)		/* save r1 (usp) here for now */
 	mfctl	%cr30,%r1			/* get task ptr in %r1 */
 	LDREG	TI_TASK(%r1),%r1
@@ -343,7 +350,7 @@ tracesys_next:
 #endif
 
 	comiclr,>>=	__NR_Linux_syscalls, %r20, %r0
-	b,n	.Lsyscall_nosys
+	b,n	.Ltracesys_nosys
 
 	LDREGX  %r20(%r19), %r19
 
@@ -359,6 +366,9 @@ tracesys_next:
 	be      0(%sr7,%r19)
 	ldo	R%tracesys_exit(%r2),%r2
 
+.Ltracesys_nosys:
+	ldo	-ENOSYS(%r0),%r28		/* set errno */
+
 	/* Do *not* call this function on the gateway page, because it
 	makes a direct call to syscall_trace. */
 	
@@ -469,11 +479,6 @@ lws_start:
 	comiclr,>>	__NR_lws_entries, %r20, %r0
 	b,n	lws_exit_nosys
 
-	/* WARNING: Trashing sr2 and sr3 */
-	mfsp	%sr7,%r1			/* get userspace into sr3 */
-	mtsp	%r1,%sr3
-	mtsp	%r0,%sr2			/* get kernel space into sr2 */
-
 	/* Load table start */
 	ldil	L%lws_table, %r1
 	ldo	R%lws_table(%r1), %r28	/* Scratch use of r28 */
@@ -622,9 +627,9 @@ cas_action:
 	stw	%r1, 4(%sr2,%r20)
 #endif
 	/* The load and store could fail */
-1:	ldw,ma	0(%sr3,%r26), %r28
+1:	ldw,ma	0(%r26), %r28
 	sub,<>	%r28, %r25, %r0
-2:	stw,ma	%r24, 0(%sr3,%r26)
+2:	stw,ma	%r24, 0(%r26)
 	/* Free lock */
 	stw,ma	%r20, 0(%sr2,%r20)
 #if ENABLE_LWS_DEBUG
@@ -683,15 +688,15 @@ cas_action:
 	/* ELF32 Process entry path */
 lws_compare_and_swap_2:
 #ifdef CONFIG_64BIT
-	/* Clip the input registers */
+	/* Clip the input registers. We don't need to clip %r23 as we
+	   only use it for word operations */
 	depdi	0, 31, 32, %r26
 	depdi	0, 31, 32, %r25
 	depdi	0, 31, 32, %r24
-	depdi	0, 31, 32, %r23
 #endif
 
 	/* Check the validity of the size pointer */
-	subi,>>= 4, %r23, %r0
+	subi,>>= 3, %r23, %r0
 	b,n	lws_exit_nosys
 
 	/* Jump to the functions which will load the old and new values into
@@ -701,9 +706,9 @@ lws_compare_and_swap_2:
 	nop
 
 	/* 8bit load */
-4:	ldb	0(%sr3,%r25), %r25
+4:	ldb	0(%r25), %r25
 	b	cas2_lock_start
-5:	ldb	0(%sr3,%r24), %r24
+5:	ldb	0(%r24), %r24
 	nop
 	nop
 	nop
@@ -711,9 +716,9 @@ lws_compare_and_swap_2:
 	nop
 
 	/* 16bit load */
-6:	ldh	0(%sr3,%r25), %r25
+6:	ldh	0(%r25), %r25
 	b	cas2_lock_start
-7:	ldh	0(%sr3,%r24), %r24
+7:	ldh	0(%r24), %r24
 	nop
 	nop
 	nop
@@ -721,9 +726,9 @@ lws_compare_and_swap_2:
 	nop
 
 	/* 32bit load */
-8:	ldw	0(%sr3,%r25), %r25
+8:	ldw	0(%r25), %r25
 	b	cas2_lock_start
-9:	ldw	0(%sr3,%r24), %r24
+9:	ldw	0(%r24), %r24
 	nop
 	nop
 	nop
@@ -732,14 +737,14 @@ lws_compare_and_swap_2:
 
 	/* 64bit load */
 #ifdef CONFIG_64BIT
-10:	ldd	0(%sr3,%r25), %r25
-11:	ldd	0(%sr3,%r24), %r24
+10:	ldd	0(%r25), %r25
+11:	ldd	0(%r24), %r24
 #else
-	/* Load new value into r22/r23 - high/low */
-10:	ldw	0(%sr3,%r25), %r22
-11:	ldw	4(%sr3,%r25), %r23
+	/* Load old value into r22/r23 - high/low */
+10:	ldw	0(%r25), %r22
+11:	ldw	4(%r25), %r23
 	/* Load new value into fr4 for atomic store later */
-12:	flddx	0(%sr3,%r24), %fr4
+12:	flddx	0(%r24), %fr4
 #endif
 
 cas2_lock_start:
@@ -789,30 +794,30 @@ cas2_action:
 	ldo	1(%r0),%r28
 
 	/* 8bit CAS */
-13:	ldb,ma	0(%sr3,%r26), %r29
+13:	ldb,ma	0(%r26), %r29
 	sub,=	%r29, %r25, %r0
 	b,n	cas2_end
-14:	stb,ma	%r24, 0(%sr3,%r26)
+14:	stb,ma	%r24, 0(%r26)
 	b	cas2_end
 	copy	%r0, %r28
 	nop
 	nop
 
 	/* 16bit CAS */
-15:	ldh,ma	0(%sr3,%r26), %r29
+15:	ldh,ma	0(%r26), %r29
 	sub,=	%r29, %r25, %r0
 	b,n	cas2_end
-16:	sth,ma	%r24, 0(%sr3,%r26)
+16:	sth,ma	%r24, 0(%r26)
 	b	cas2_end
 	copy	%r0, %r28
 	nop
 	nop
 
 	/* 32bit CAS */
-17:	ldw,ma	0(%sr3,%r26), %r29
+17:	ldw,ma	0(%r26), %r29
 	sub,=	%r29, %r25, %r0
 	b,n	cas2_end
-18:	stw,ma	%r24, 0(%sr3,%r26)
+18:	stw,ma	%r24, 0(%r26)
 	b	cas2_end
 	copy	%r0, %r28
 	nop
@@ -820,22 +825,22 @@ cas2_action:
 
 	/* 64bit CAS */
 #ifdef CONFIG_64BIT
-19:	ldd,ma	0(%sr3,%r26), %r29
+19:	ldd,ma	0(%r26), %r29
 	sub,*=	%r29, %r25, %r0
 	b,n	cas2_end
-20:	std,ma	%r24, 0(%sr3,%r26)
+20:	std,ma	%r24, 0(%r26)
 	copy	%r0, %r28
 #else
 	/* Compare first word */
-19:	ldw,ma	0(%sr3,%r26), %r29
+19:	ldw	0(%r26), %r29
 	sub,=	%r29, %r22, %r0
 	b,n	cas2_end
 	/* Compare second word */
-20:	ldw,ma	4(%sr3,%r26), %r29
+20:	ldw	4(%r26), %r29
 	sub,=	%r29, %r23, %r0
 	b,n	cas2_end
 	/* Perform the store */
-21:	fstdx	%fr4, 0(%sr3,%r26)
+21:	fstdx	%fr4, 0(%r26)
 	copy	%r0, %r28
 #endif
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/parisc/kernel/syscall_table.S linux-libre-4.4.107-gnu/arch/parisc/kernel/syscall_table.S
--- linux-libre-4.4-gnu/arch/parisc/kernel/syscall_table.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/parisc/kernel/syscall_table.S	2017-12-20 04:05:01.000000000 -0500
@@ -361,7 +361,7 @@
 	ENTRY_SAME(ni_syscall)	/* 263: reserved for vserver */
 	ENTRY_SAME(add_key)
 	ENTRY_SAME(request_key)		/* 265 */
-	ENTRY_SAME(keyctl)
+	ENTRY_COMP(keyctl)
 	ENTRY_SAME(ioprio_set)
 	ENTRY_SAME(ioprio_get)
 	ENTRY_SAME(inotify_init)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/parisc/kernel/sys_parisc.c linux-libre-4.4.107-gnu/arch/parisc/kernel/sys_parisc.c
--- linux-libre-4.4-gnu/arch/parisc/kernel/sys_parisc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/parisc/kernel/sys_parisc.c	2017-12-20 04:05:01.000000000 -0500
@@ -88,7 +88,7 @@ unsigned long arch_get_unmapped_area(str
 		unsigned long len, unsigned long pgoff, unsigned long flags)
 {
 	struct mm_struct *mm = current->mm;
-	struct vm_area_struct *vma;
+	struct vm_area_struct *vma, *prev;
 	unsigned long task_size = TASK_SIZE;
 	int do_color_align, last_mmap;
 	struct vm_unmapped_area_info info;
@@ -115,9 +115,10 @@ unsigned long arch_get_unmapped_area(str
 		else
 			addr = PAGE_ALIGN(addr);
 
-		vma = find_vma(mm, addr);
+		vma = find_vma_prev(mm, addr, &prev);
 		if (task_size - len >= addr &&
-		    (!vma || addr + len <= vma->vm_start))
+		    (!vma || addr + len <= vm_start_gap(vma)) &&
+		    (!prev || addr >= vm_end_gap(prev)))
 			goto found_addr;
 	}
 
@@ -141,7 +142,7 @@ arch_get_unmapped_area_topdown(struct fi
 			  const unsigned long len, const unsigned long pgoff,
 			  const unsigned long flags)
 {
-	struct vm_area_struct *vma;
+	struct vm_area_struct *vma, *prev;
 	struct mm_struct *mm = current->mm;
 	unsigned long addr = addr0;
 	int do_color_align, last_mmap;
@@ -175,9 +176,11 @@ arch_get_unmapped_area_topdown(struct fi
 			addr = COLOR_ALIGN(addr, last_mmap, pgoff);
 		else
 			addr = PAGE_ALIGN(addr);
-		vma = find_vma(mm, addr);
+
+		vma = find_vma_prev(mm, addr, &prev);
 		if (TASK_SIZE - len >= addr &&
-		    (!vma || addr + len <= vma->vm_start))
+		    (!vma || addr + len <= vm_start_gap(vma)) &&
+		    (!prev || addr >= vm_end_gap(prev)))
 			goto found_addr;
 	}
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/parisc/kernel/traps.c linux-libre-4.4.107-gnu/arch/parisc/kernel/traps.c
--- linux-libre-4.4-gnu/arch/parisc/kernel/traps.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/parisc/kernel/traps.c	2017-12-20 04:05:01.000000000 -0500
@@ -798,6 +798,9 @@ void notrace handle_interruption(int cod
 
 	    if (fault_space == 0 && !faulthandler_disabled())
 	    {
+		/* Clean up and return if in exception table. */
+		if (fixup_exception(regs))
+			return;
 		pdc_chassis_send_status(PDC_CHASSIS_DIRECT_PANIC);
 		parisc_terminate("Kernel Fault", regs, code, fault_address);
 	    }
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/parisc/kernel/unaligned.c linux-libre-4.4.107-gnu/arch/parisc/kernel/unaligned.c
--- linux-libre-4.4-gnu/arch/parisc/kernel/unaligned.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/parisc/kernel/unaligned.c	2017-12-20 04:05:01.000000000 -0500
@@ -666,7 +666,7 @@ void handle_unaligned(struct pt_regs *re
 		break;
 	}
 
-	if (modify && R1(regs->iir))
+	if (ret == 0 && modify && R1(regs->iir))
 		regs->gr[R1(regs->iir)] = newbase;
 
 
@@ -677,6 +677,14 @@ void handle_unaligned(struct pt_regs *re
 
 	if (ret)
 	{
+		/*
+		 * The unaligned handler failed.
+		 * If we were called by __get_user() or __put_user() jump
+		 * to it's exception fixup handler instead of crashing.
+		 */
+		if (!user_mode(regs) && fixup_exception(regs))
+			return;
+
 		printk(KERN_CRIT "Unaligned handler failed, ret = %d\n", ret);
 		die_if_kernel("Unaligned data reference", regs, 28);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/parisc/kernel/vmlinux.lds.S linux-libre-4.4.107-gnu/arch/parisc/kernel/vmlinux.lds.S
--- linux-libre-4.4-gnu/arch/parisc/kernel/vmlinux.lds.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/parisc/kernel/vmlinux.lds.S	2017-12-20 04:05:01.000000000 -0500
@@ -88,8 +88,9 @@ SECTIONS
 	/* Start of data section */
 	_sdata = .;
 
-	RO_DATA_SECTION(8)
-
+	/* Architecturally we need to keep __gp below 0x1000000 and thus
+	 * in front of RO_DATA_SECTION() which stores lots of tracepoint
+	 * and ftrace symbols. */
 #ifdef CONFIG_64BIT
 	. = ALIGN(16);
 	/* Linkage tables */
@@ -104,6 +105,8 @@ SECTIONS
 	}
 #endif
 
+	RO_DATA_SECTION(8)
+
 	/* unwind info */
 	.PARISC.unwind : {
 		__start___unwind = .;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/parisc/lib/fixup.S linux-libre-4.4.107-gnu/arch/parisc/lib/fixup.S
--- linux-libre-4.4-gnu/arch/parisc/lib/fixup.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/parisc/lib/fixup.S	2017-12-20 04:05:01.000000000 -0500
@@ -26,6 +26,7 @@
 
 #ifdef CONFIG_SMP
 	.macro  get_fault_ip t1 t2
+	loadgp
 	addil LT%__per_cpu_offset,%r27
 	LDREG RT%__per_cpu_offset(%r1),\t1
 	/* t2 = smp_processor_id() */
@@ -40,14 +41,19 @@
 	LDREG RT%exception_data(%r1),\t1
 	/* t1 = this_cpu_ptr(&exception_data) */
 	add,l \t1,\t2,\t1
+	/* %r27 = t1->fault_gp - restore gp */
+	LDREG EXCDATA_GP(\t1), %r27
 	/* t1 = t1->fault_ip */
 	LDREG EXCDATA_IP(\t1), \t1
 	.endm
 #else
 	.macro  get_fault_ip t1 t2
+	loadgp
 	/* t1 = this_cpu_ptr(&exception_data) */
 	addil LT%exception_data,%r27
 	LDREG RT%exception_data(%r1),\t2
+	/* %r27 = t2->fault_gp - restore gp */
+	LDREG EXCDATA_GP(\t2), %r27
 	/* t1 = t2->fault_ip */
 	LDREG EXCDATA_IP(\t2), \t1
 	.endm
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/parisc/mm/fault.c linux-libre-4.4.107-gnu/arch/parisc/mm/fault.c
--- linux-libre-4.4-gnu/arch/parisc/mm/fault.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/parisc/mm/fault.c	2017-12-20 04:05:01.000000000 -0500
@@ -151,6 +151,7 @@ int fixup_exception(struct pt_regs *regs
 		struct exception_data *d;
 		d = this_cpu_ptr(&exception_data);
 		d->fault_ip = regs->iaoq[0];
+		d->fault_gp = regs->gr[27];
 		d->fault_space = regs->isr;
 		d->fault_addr = regs->ior;
 
@@ -302,7 +303,7 @@ bad_area:
 		case 15:	/* Data TLB miss fault/Data page fault */
 			/* send SIGSEGV when outside of vma */
 			if (!vma ||
-			    address < vma->vm_start || address > vma->vm_end) {
+			    address < vma->vm_start || address >= vma->vm_end) {
 				si.si_signo = SIGSEGV;
 				si.si_code = SEGV_MAPERR;
 				break;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/parisc/mm/hugetlbpage.c linux-libre-4.4.107-gnu/arch/parisc/mm/hugetlbpage.c
--- linux-libre-4.4-gnu/arch/parisc/mm/hugetlbpage.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/parisc/mm/hugetlbpage.c	2017-12-20 04:05:01.000000000 -0500
@@ -105,15 +105,13 @@ static inline void purge_tlb_entries_hug
 	addr |= _HUGE_PAGE_SIZE_ENCODING_DEFAULT;
 
 	for (i = 0; i < (1 << (HPAGE_SHIFT-REAL_HPAGE_SHIFT)); i++) {
-		mtsp(mm->context, 1);
-		pdtlb(addr);
-		if (unlikely(split_tlb))
-			pitlb(addr);
+		purge_tlb_entries(mm, addr);
 		addr += (1UL << REAL_HPAGE_SHIFT);
 	}
 }
 
-void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
+/* __set_huge_pte_at() must be called holding the pa_tlb_lock. */
+static void __set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 		     pte_t *ptep, pte_t entry)
 {
 	unsigned long addr_start;
@@ -123,14 +121,9 @@ void set_huge_pte_at(struct mm_struct *m
 	addr_start = addr;
 
 	for (i = 0; i < (1 << HUGETLB_PAGE_ORDER); i++) {
-		/* Directly write pte entry.  We could call set_pte_at(mm, addr, ptep, entry)
-		 * instead, but then we get double locking on pa_tlb_lock. */
-		*ptep = entry;
+		set_pte(ptep, entry);
 		ptep++;
 
-		/* Drop the PAGE_SIZE/non-huge tlb entry */
-		purge_tlb_entries(mm, addr);
-
 		addr += PAGE_SIZE;
 		pte_val(entry) += PAGE_SIZE;
 	}
@@ -138,18 +131,61 @@ void set_huge_pte_at(struct mm_struct *m
 	purge_tlb_entries_huge(mm, addr_start);
 }
 
+void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
+		     pte_t *ptep, pte_t entry)
+{
+	unsigned long flags;
+
+	purge_tlb_start(flags);
+	__set_huge_pte_at(mm, addr, ptep, entry);
+	purge_tlb_end(flags);
+}
+
 
 pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr,
 			      pte_t *ptep)
 {
+	unsigned long flags;
 	pte_t entry;
 
+	purge_tlb_start(flags);
 	entry = *ptep;
-	set_huge_pte_at(mm, addr, ptep, __pte(0));
+	__set_huge_pte_at(mm, addr, ptep, __pte(0));
+	purge_tlb_end(flags);
 
 	return entry;
 }
 
+
+void huge_ptep_set_wrprotect(struct mm_struct *mm,
+				unsigned long addr, pte_t *ptep)
+{
+	unsigned long flags;
+	pte_t old_pte;
+
+	purge_tlb_start(flags);
+	old_pte = *ptep;
+	__set_huge_pte_at(mm, addr, ptep, pte_wrprotect(old_pte));
+	purge_tlb_end(flags);
+}
+
+int huge_ptep_set_access_flags(struct vm_area_struct *vma,
+				unsigned long addr, pte_t *ptep,
+				pte_t pte, int dirty)
+{
+	unsigned long flags;
+	int changed;
+
+	purge_tlb_start(flags);
+	changed = !pte_same(*ptep, pte);
+	if (changed) {
+		__set_huge_pte_at(vma->vm_mm, addr, ptep, pte);
+	}
+	purge_tlb_end(flags);
+	return changed;
+}
+
+
 int pmd_huge(pmd_t pmd)
 {
 	return 0;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/boot/dts/fsl/kmcoge4.dts linux-libre-4.4.107-gnu/arch/powerpc/boot/dts/fsl/kmcoge4.dts
--- linux-libre-4.4-gnu/arch/powerpc/boot/dts/fsl/kmcoge4.dts	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/boot/dts/fsl/kmcoge4.dts	2017-12-20 04:05:01.000000000 -0500
@@ -83,6 +83,10 @@
 			};
 		};
 
+		sdhc@114000 {
+			status = "disabled";
+		};
+
 		i2c@119000 {
 			status = "disabled";
 		};
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/boot/ps3.c linux-libre-4.4.107-gnu/arch/powerpc/boot/ps3.c
--- linux-libre-4.4-gnu/arch/powerpc/boot/ps3.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/boot/ps3.c	2017-12-20 04:05:01.000000000 -0500
@@ -119,13 +119,12 @@ void ps3_copy_vectors(void)
 	flush_cache((void *)0x100, 512);
 }
 
-void platform_init(unsigned long null_check)
+void platform_init(void)
 {
 	const u32 heapsize = 0x1000000 - (u32)_end; /* 16MiB */
 	void *chosen;
 	unsigned long ft_addr;
 	u64 rm_size;
-	unsigned long val;
 
 	console_ops.write = ps3_console_write;
 	platform_ops.exit = ps3_exit;
@@ -153,11 +152,6 @@ void platform_init(unsigned long null_ch
 
 	printf(" flat tree at 0x%lx\n\r", ft_addr);
 
-	val = *(unsigned long *)0;
-
-	if (val != null_check)
-		printf("null check failed: %lx != %lx\n\r", val, null_check);
-
 	((kernel_entry_t)0)(ft_addr, 0, NULL);
 
 	ps3_exit();
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/boot/ps3-head.S linux-libre-4.4.107-gnu/arch/powerpc/boot/ps3-head.S
--- linux-libre-4.4-gnu/arch/powerpc/boot/ps3-head.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/boot/ps3-head.S	2017-12-20 04:05:01.000000000 -0500
@@ -57,11 +57,6 @@ __system_reset_overlay:
 	bctr
 
 1:
-	/* Save the value at addr zero for a null pointer write check later. */
-
-	li	r4, 0
-	lwz	r3, 0(r4)
-
 	/* Primary delays then goes to _zimage_start in wrapper. */
 
 	or	31, 31, 31 /* db16cyc */
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/boot/zImage.lds.S linux-libre-4.4.107-gnu/arch/powerpc/boot/zImage.lds.S
--- linux-libre-4.4-gnu/arch/powerpc/boot/zImage.lds.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/boot/zImage.lds.S	2017-12-20 04:05:01.000000000 -0500
@@ -68,6 +68,7 @@ SECTIONS
   }
 
 #ifdef CONFIG_PPC64_BOOT_WRAPPER
+  . = ALIGN(256);
   .got :
   {
     __toc_start = .;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/include/asm/atomic.h linux-libre-4.4.107-gnu/arch/powerpc/include/asm/atomic.h
--- linux-libre-4.4-gnu/arch/powerpc/include/asm/atomic.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/include/asm/atomic.h	2017-12-20 04:05:01.000000000 -0500
@@ -460,7 +460,7 @@ static __inline__ int atomic64_add_unles
  * Atomically increments @v by 1, so long as @v is non-zero.
  * Returns non-zero if @v was non-zero, and zero otherwise.
  */
-static __inline__ long atomic64_inc_not_zero(atomic64_t *v)
+static __inline__ int atomic64_inc_not_zero(atomic64_t *v)
 {
 	long t1, t2;
 
@@ -479,7 +479,7 @@ static __inline__ long atomic64_inc_not_
 	: "r" (&v->counter)
 	: "cc", "xer", "memory");
 
-	return t1;
+	return t1 != 0;
 }
 
 #endif /* __powerpc64__ */
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/include/asm/cmpxchg.h linux-libre-4.4.107-gnu/arch/powerpc/include/asm/cmpxchg.h
--- linux-libre-4.4-gnu/arch/powerpc/include/asm/cmpxchg.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/include/asm/cmpxchg.h	2017-12-20 04:05:01.000000000 -0500
@@ -18,12 +18,12 @@ __xchg_u32(volatile void *p, unsigned lo
 	unsigned long prev;
 
 	__asm__ __volatile__(
-	PPC_RELEASE_BARRIER
+	PPC_ATOMIC_ENTRY_BARRIER
 "1:	lwarx	%0,0,%2 \n"
 	PPC405_ERR77(0,%2)
 "	stwcx.	%3,0,%2 \n\
 	bne-	1b"
-	PPC_ACQUIRE_BARRIER
+	PPC_ATOMIC_EXIT_BARRIER
 	: "=&r" (prev), "+m" (*(volatile unsigned int *)p)
 	: "r" (p), "r" (val)
 	: "cc", "memory");
@@ -61,12 +61,12 @@ __xchg_u64(volatile void *p, unsigned lo
 	unsigned long prev;
 
 	__asm__ __volatile__(
-	PPC_RELEASE_BARRIER
+	PPC_ATOMIC_ENTRY_BARRIER
 "1:	ldarx	%0,0,%2 \n"
 	PPC405_ERR77(0,%2)
 "	stdcx.	%3,0,%2 \n\
 	bne-	1b"
-	PPC_ACQUIRE_BARRIER
+	PPC_ATOMIC_EXIT_BARRIER
 	: "=&r" (prev), "+m" (*(volatile unsigned long *)p)
 	: "r" (p), "r" (val)
 	: "cc", "memory");
@@ -151,14 +151,14 @@ __cmpxchg_u32(volatile unsigned int *p,
 	unsigned int prev;
 
 	__asm__ __volatile__ (
-	PPC_RELEASE_BARRIER
+	PPC_ATOMIC_ENTRY_BARRIER
 "1:	lwarx	%0,0,%2		# __cmpxchg_u32\n\
 	cmpw	0,%0,%3\n\
 	bne-	2f\n"
 	PPC405_ERR77(0,%2)
 "	stwcx.	%4,0,%2\n\
 	bne-	1b"
-	PPC_ACQUIRE_BARRIER
+	PPC_ATOMIC_EXIT_BARRIER
 	"\n\
 2:"
 	: "=&r" (prev), "+m" (*p)
@@ -197,13 +197,13 @@ __cmpxchg_u64(volatile unsigned long *p,
 	unsigned long prev;
 
 	__asm__ __volatile__ (
-	PPC_RELEASE_BARRIER
+	PPC_ATOMIC_ENTRY_BARRIER
 "1:	ldarx	%0,0,%2		# __cmpxchg_u64\n\
 	cmpd	0,%0,%3\n\
 	bne-	2f\n\
 	stdcx.	%4,0,%2\n\
 	bne-	1b"
-	PPC_ACQUIRE_BARRIER
+	PPC_ATOMIC_EXIT_BARRIER
 	"\n\
 2:"
 	: "=&r" (prev), "+m" (*p)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/include/asm/eeh.h linux-libre-4.4.107-gnu/arch/powerpc/include/asm/eeh.h
--- linux-libre-4.4-gnu/arch/powerpc/include/asm/eeh.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/include/asm/eeh.h	2017-12-20 04:05:01.000000000 -0500
@@ -81,6 +81,7 @@ struct pci_dn;
 #define EEH_PE_KEEP		(1 << 8)	/* Keep PE on hotplug	*/
 #define EEH_PE_CFG_RESTRICTED	(1 << 9)	/* Block config on error */
 #define EEH_PE_REMOVED		(1 << 10)	/* Removed permanently	*/
+#define EEH_PE_PRI_BUS		(1 << 11)	/* Cached primary bus   */
 
 struct eeh_pe {
 	int type;			/* PE type: PHB/Bus/Device	*/
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/include/asm/elf.h linux-libre-4.4.107-gnu/arch/powerpc/include/asm/elf.h
--- linux-libre-4.4-gnu/arch/powerpc/include/asm/elf.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/include/asm/elf.h	2017-12-20 04:05:01.000000000 -0500
@@ -23,12 +23,13 @@
 #define CORE_DUMP_USE_REGSET
 #define ELF_EXEC_PAGESIZE	PAGE_SIZE
 
-/* This is the location that an ET_DYN program is loaded if exec'ed.  Typical
-   use of this is to invoke "./ld.so someprog" to test out a new version of
-   the loader.  We need to make sure that it is out of the way of the program
-   that it will "exec", and that there is sufficient room for the brk.  */
-
-#define ELF_ET_DYN_BASE	0x20000000
+/*
+ * This is the base location for PIE (ET_DYN with INTERP) loads. On
+ * 64-bit, this is raised to 4GB to leave the entire 32-bit address
+ * space open for things that want to use the area for 32-bit pointers.
+ */
+#define ELF_ET_DYN_BASE		(is_32bit_task() ? 0x000400000UL : \
+						   0x100000000UL)
 
 #define ELF_CORE_EFLAGS (is_elf2_task() ? 2 : 0)
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/include/asm/icswx.h linux-libre-4.4.107-gnu/arch/powerpc/include/asm/icswx.h
--- linux-libre-4.4-gnu/arch/powerpc/include/asm/icswx.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/include/asm/icswx.h	2017-12-20 04:05:01.000000000 -0500
@@ -164,6 +164,7 @@ struct coprocessor_request_block {
 #define ICSWX_INITIATED		(0x8)
 #define ICSWX_BUSY		(0x4)
 #define ICSWX_REJECTED		(0x2)
+#define ICSWX_XERS0		(0x1)	/* undefined or set from XERSO. */
 
 static inline int icswx(__be32 ccw, struct coprocessor_request_block *crb)
 {
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/include/asm/kvm_host.h linux-libre-4.4.107-gnu/arch/powerpc/include/asm/kvm_host.h
--- linux-libre-4.4-gnu/arch/powerpc/include/asm/kvm_host.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/include/asm/kvm_host.h	2017-12-20 04:05:01.000000000 -0500
@@ -545,6 +545,7 @@ struct kvm_vcpu_arch {
 	u64 tfiar;
 
 	u32 cr_tm;
+	u64 xer_tm;
 	u64 lr_tm;
 	u64 ctr_tm;
 	u64 amr_tm;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/include/asm/opal-api.h linux-libre-4.4.107-gnu/arch/powerpc/include/asm/opal-api.h
--- linux-libre-4.4-gnu/arch/powerpc/include/asm/opal-api.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/include/asm/opal-api.h	2017-12-20 04:05:01.000000000 -0500
@@ -157,7 +157,8 @@
 #define OPAL_LEDS_GET_INDICATOR			114
 #define OPAL_LEDS_SET_INDICATOR			115
 #define OPAL_CEC_REBOOT2			116
-#define OPAL_LAST				116
+#define OPAL_CONSOLE_FLUSH			117
+#define OPAL_LAST				117
 
 /* Device tree flags */
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/include/asm/opal.h linux-libre-4.4.107-gnu/arch/powerpc/include/asm/opal.h
--- linux-libre-4.4-gnu/arch/powerpc/include/asm/opal.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/include/asm/opal.h	2017-12-20 04:05:01.000000000 -0500
@@ -35,6 +35,7 @@ int64_t opal_console_read(int64_t term_n
 			  uint8_t *buffer);
 int64_t opal_console_write_buffer_space(int64_t term_number,
 					__be64 *length);
+int64_t opal_console_flush(int64_t term_number);
 int64_t opal_rtc_read(__be32 *year_month_day,
 		      __be64 *hour_minute_second_millisecond);
 int64_t opal_rtc_write(uint32_t year_month_day,
@@ -262,6 +263,8 @@ extern int opal_resync_timebase(void);
 
 extern void opal_lpc_init(void);
 
+extern void opal_kmsg_init(void);
+
 extern int opal_event_request(unsigned int opal_event_nr);
 
 struct opal_sg_list *opal_vmalloc_to_sg_list(void *vmalloc_addr,
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/include/asm/reg.h linux-libre-4.4.107-gnu/arch/powerpc/include/asm/reg.h
--- linux-libre-4.4-gnu/arch/powerpc/include/asm/reg.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/include/asm/reg.h	2017-12-20 04:05:01.000000000 -0500
@@ -707,7 +707,8 @@
 #define   MMCR0_FCWAIT	0x00000002UL /* freeze counter in WAIT state */
 #define   MMCR0_FCHV	0x00000001UL /* freeze conditions in hypervisor mode */
 #define SPRN_MMCR1	798
-#define SPRN_MMCR2	769
+#define SPRN_MMCR2	785
+#define SPRN_UMMCR2	769
 #define SPRN_MMCRA	0x312
 #define   MMCRA_SDSYNC	0x80000000UL /* SDAR synced with SIAR */
 #define   MMCRA_SDAR_DCACHE_MISS 0x40000000UL
@@ -744,13 +745,13 @@
 #define SPRN_PMC6	792
 #define SPRN_PMC7	793
 #define SPRN_PMC8	794
-#define SPRN_SIAR	780
-#define SPRN_SDAR	781
 #define SPRN_SIER	784
 #define   SIER_SIPR		0x2000000	/* Sampled MSR_PR */
 #define   SIER_SIHV		0x1000000	/* Sampled MSR_HV */
 #define   SIER_SIAR_VALID	0x0400000	/* SIAR contents valid */
 #define   SIER_SDAR_VALID	0x0200000	/* SDAR contents valid */
+#define SPRN_SIAR	796
+#define SPRN_SDAR	797
 #define SPRN_TACR	888
 #define SPRN_TCSCR	889
 #define SPRN_CSIGR	890
@@ -1235,7 +1236,7 @@ static inline unsigned long mfvtb (void)
 				"	.llong 0\n"			\
 				".previous"				\
 			: "=r" (rval) \
-			: "i" (CPU_FTR_CELL_TB_BUG), "i" (SPRN_TBRL)); \
+			: "i" (CPU_FTR_CELL_TB_BUG), "i" (SPRN_TBRL) : "cr0"); \
 			rval;})
 #else
 #define mftb()		({unsigned long rval;	\
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/include/asm/synch.h linux-libre-4.4.107-gnu/arch/powerpc/include/asm/synch.h
--- linux-libre-4.4-gnu/arch/powerpc/include/asm/synch.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/include/asm/synch.h	2017-12-20 04:05:01.000000000 -0500
@@ -44,7 +44,7 @@ static inline void isync(void)
 	MAKE_LWSYNC_SECTION_ENTRY(97, __lwsync_fixup);
 #define PPC_ACQUIRE_BARRIER	 "\n" stringify_in_c(__PPC_ACQUIRE_BARRIER)
 #define PPC_RELEASE_BARRIER	 stringify_in_c(LWSYNC) "\n"
-#define PPC_ATOMIC_ENTRY_BARRIER "\n" stringify_in_c(LWSYNC) "\n"
+#define PPC_ATOMIC_ENTRY_BARRIER "\n" stringify_in_c(sync) "\n"
 #define PPC_ATOMIC_EXIT_BARRIER	 "\n" stringify_in_c(sync) "\n"
 #else
 #define PPC_ACQUIRE_BARRIER
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/include/asm/uaccess.h linux-libre-4.4.107-gnu/arch/powerpc/include/asm/uaccess.h
--- linux-libre-4.4-gnu/arch/powerpc/include/asm/uaccess.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/include/asm/uaccess.h	2017-12-20 04:05:01.000000000 -0500
@@ -323,30 +323,17 @@ extern unsigned long __copy_tofrom_user(
 static inline unsigned long copy_from_user(void *to,
 		const void __user *from, unsigned long n)
 {
-	unsigned long over;
-
-	if (access_ok(VERIFY_READ, from, n))
+	if (likely(access_ok(VERIFY_READ, from, n)))
 		return __copy_tofrom_user((__force void __user *)to, from, n);
-	if ((unsigned long)from < TASK_SIZE) {
-		over = (unsigned long)from + n - TASK_SIZE;
-		return __copy_tofrom_user((__force void __user *)to, from,
-				n - over) + over;
-	}
+	memset(to, 0, n);
 	return n;
 }
 
 static inline unsigned long copy_to_user(void __user *to,
 		const void *from, unsigned long n)
 {
-	unsigned long over;
-
 	if (access_ok(VERIFY_WRITE, to, n))
 		return __copy_tofrom_user(to, (__force void __user *)from, n);
-	if ((unsigned long)to < TASK_SIZE) {
-		over = (unsigned long)to + n - TASK_SIZE;
-		return __copy_tofrom_user(to, (__force void __user *)from,
-				n - over) + over;
-	}
 	return n;
 }
 
@@ -437,10 +424,6 @@ static inline unsigned long clear_user(v
 	might_fault();
 	if (likely(access_ok(VERIFY_WRITE, addr, size)))
 		return __clear_user(addr, size);
-	if ((unsigned long)addr < TASK_SIZE) {
-		unsigned long over = (unsigned long)addr + size - TASK_SIZE;
-		return __clear_user(addr, size - over) + over;
-	}
 	return size;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/include/asm/word-at-a-time.h linux-libre-4.4.107-gnu/arch/powerpc/include/asm/word-at-a-time.h
--- linux-libre-4.4-gnu/arch/powerpc/include/asm/word-at-a-time.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/include/asm/word-at-a-time.h	2017-12-20 04:05:01.000000000 -0500
@@ -82,7 +82,7 @@ static inline unsigned long create_zero_
 	    "andc	%1,%1,%2\n\t"
 	    "popcntd	%0,%1"
 		: "=r" (leading_zero_bits), "=&r" (trailing_zero_bit_mask)
-		: "r" (bits));
+		: "b" (bits));
 
 	return leading_zero_bits;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/include/uapi/asm/cputable.h linux-libre-4.4.107-gnu/arch/powerpc/include/uapi/asm/cputable.h
--- linux-libre-4.4-gnu/arch/powerpc/include/uapi/asm/cputable.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/include/uapi/asm/cputable.h	2017-12-20 04:05:01.000000000 -0500
@@ -31,6 +31,7 @@
 #define PPC_FEATURE_PSERIES_PERFMON_COMPAT \
 					0x00000040
 
+/* Reserved - do not use		0x00000004 */
 #define PPC_FEATURE_TRUE_LE		0x00000002
 #define PPC_FEATURE_PPC_LE		0x00000001
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/include/uapi/asm/elf.h linux-libre-4.4.107-gnu/arch/powerpc/include/uapi/asm/elf.h
--- linux-libre-4.4-gnu/arch/powerpc/include/uapi/asm/elf.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/include/uapi/asm/elf.h	2017-12-20 04:05:01.000000000 -0500
@@ -295,6 +295,8 @@ do {									\
 #define R_PPC64_TLSLD		108
 #define R_PPC64_TOCSAVE		109
 
+#define R_PPC64_ENTRY		118
+
 #define R_PPC64_REL16		249
 #define R_PPC64_REL16_LO	250
 #define R_PPC64_REL16_HI	251
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/include/uapi/asm/kvm.h linux-libre-4.4.107-gnu/arch/powerpc/include/uapi/asm/kvm.h
--- linux-libre-4.4-gnu/arch/powerpc/include/uapi/asm/kvm.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/include/uapi/asm/kvm.h	2017-12-20 04:05:01.000000000 -0500
@@ -587,6 +587,7 @@ struct kvm_get_htab_header {
 #define KVM_REG_PPC_TM_VSCR	(KVM_REG_PPC_TM | KVM_REG_SIZE_U32 | 0x67)
 #define KVM_REG_PPC_TM_DSCR	(KVM_REG_PPC_TM | KVM_REG_SIZE_U64 | 0x68)
 #define KVM_REG_PPC_TM_TAR	(KVM_REG_PPC_TM | KVM_REG_SIZE_U64 | 0x69)
+#define KVM_REG_PPC_TM_XER	(KVM_REG_PPC_TM | KVM_REG_SIZE_U64 | 0x6a)
 
 /* PPC64 eXternal Interrupt Controller Specification */
 #define KVM_DEV_XICS_GRP_SOURCES	1	/* 64-bit source attributes */
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/Kconfig linux-libre-4.4.107-gnu/arch/powerpc/Kconfig
--- linux-libre-4.4-gnu/arch/powerpc/Kconfig	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/Kconfig	2017-12-20 04:05:01.000000000 -0500
@@ -1082,11 +1082,6 @@ source "arch/powerpc/Kconfig.debug"
 
 source "security/Kconfig"
 
-config KEYS_COMPAT
-	bool
-	depends on COMPAT && KEYS
-	default y
-
 source "crypto/Kconfig"
 
 config PPC_LIB_RHEAP
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/kernel/align.c linux-libre-4.4.107-gnu/arch/powerpc/kernel/align.c
--- linux-libre-4.4-gnu/arch/powerpc/kernel/align.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/kernel/align.c	2017-12-20 04:05:01.000000000 -0500
@@ -236,6 +236,28 @@ static int emulate_dcbz(struct pt_regs *
 
 #define SWIZ_PTR(p)		((unsigned char __user *)((p) ^ swiz))
 
+#define __get_user_or_set_dar(_regs, _dest, _addr)		\
+	({							\
+		int rc = 0;					\
+		typeof(_addr) __addr = (_addr);			\
+		if (__get_user_inatomic(_dest, __addr)) {	\
+			_regs->dar = (unsigned long)__addr;	\
+			rc = -EFAULT;				\
+		}						\
+		rc;						\
+	})
+
+#define __put_user_or_set_dar(_regs, _src, _addr)		\
+	({							\
+		int rc = 0;					\
+		typeof(_addr) __addr = (_addr);			\
+		if (__put_user_inatomic(_src, __addr)) {	\
+			_regs->dar = (unsigned long)__addr;	\
+			rc = -EFAULT;				\
+		}						\
+		rc;						\
+	})
+
 static int emulate_multiple(struct pt_regs *regs, unsigned char __user *addr,
 			    unsigned int reg, unsigned int nb,
 			    unsigned int flags, unsigned int instr,
@@ -264,9 +286,10 @@ static int emulate_multiple(struct pt_re
 		} else {
 			unsigned long pc = regs->nip ^ (swiz & 4);
 
-			if (__get_user_inatomic(instr,
-						(unsigned int __user *)pc))
+			if (__get_user_or_set_dar(regs, instr,
+						  (unsigned int __user *)pc))
 				return -EFAULT;
+
 			if (swiz == 0 && (flags & SW))
 				instr = cpu_to_le32(instr);
 			nb = (instr >> 11) & 0x1f;
@@ -310,31 +333,31 @@ static int emulate_multiple(struct pt_re
 			       ((nb0 + 3) / 4) * sizeof(unsigned long));
 
 		for (i = 0; i < nb; ++i, ++p)
-			if (__get_user_inatomic(REG_BYTE(rptr, i ^ bswiz),
-						SWIZ_PTR(p)))
+			if (__get_user_or_set_dar(regs, REG_BYTE(rptr, i ^ bswiz),
+						  SWIZ_PTR(p)))
 				return -EFAULT;
 		if (nb0 > 0) {
 			rptr = &regs->gpr[0];
 			addr += nb;
 			for (i = 0; i < nb0; ++i, ++p)
-				if (__get_user_inatomic(REG_BYTE(rptr,
-								 i ^ bswiz),
-							SWIZ_PTR(p)))
+				if (__get_user_or_set_dar(regs,
+							  REG_BYTE(rptr, i ^ bswiz),
+							  SWIZ_PTR(p)))
 					return -EFAULT;
 		}
 
 	} else {
 		for (i = 0; i < nb; ++i, ++p)
-			if (__put_user_inatomic(REG_BYTE(rptr, i ^ bswiz),
-						SWIZ_PTR(p)))
+			if (__put_user_or_set_dar(regs, REG_BYTE(rptr, i ^ bswiz),
+						  SWIZ_PTR(p)))
 				return -EFAULT;
 		if (nb0 > 0) {
 			rptr = &regs->gpr[0];
 			addr += nb;
 			for (i = 0; i < nb0; ++i, ++p)
-				if (__put_user_inatomic(REG_BYTE(rptr,
-								 i ^ bswiz),
-							SWIZ_PTR(p)))
+				if (__put_user_or_set_dar(regs,
+							  REG_BYTE(rptr, i ^ bswiz),
+							  SWIZ_PTR(p)))
 					return -EFAULT;
 		}
 	}
@@ -346,29 +369,32 @@ static int emulate_multiple(struct pt_re
  * Only POWER6 has these instructions, and it does true little-endian,
  * so we don't need the address swizzling.
  */
-static int emulate_fp_pair(unsigned char __user *addr, unsigned int reg,
-			   unsigned int flags)
+static int emulate_fp_pair(struct pt_regs *regs, unsigned char __user *addr,
+			   unsigned int reg, unsigned int flags)
 {
 	char *ptr0 = (char *) &current->thread.TS_FPR(reg);
 	char *ptr1 = (char *) &current->thread.TS_FPR(reg+1);
-	int i, ret, sw = 0;
+	int i, sw = 0;
 
 	if (reg & 1)
 		return 0;	/* invalid form: FRS/FRT must be even */
 	if (flags & SW)
 		sw = 7;
-	ret = 0;
+
 	for (i = 0; i < 8; ++i) {
 		if (!(flags & ST)) {
-			ret |= __get_user(ptr0[i^sw], addr + i);
-			ret |= __get_user(ptr1[i^sw], addr + i + 8);
+			if (__get_user_or_set_dar(regs, ptr0[i^sw], addr + i))
+				return -EFAULT;
+			if (__get_user_or_set_dar(regs, ptr1[i^sw], addr + i + 8))
+				return -EFAULT;
 		} else {
-			ret |= __put_user(ptr0[i^sw], addr + i);
-			ret |= __put_user(ptr1[i^sw], addr + i + 8);
+			if (__put_user_or_set_dar(regs, ptr0[i^sw], addr + i))
+				return -EFAULT;
+			if (__put_user_or_set_dar(regs, ptr1[i^sw], addr + i + 8))
+				return -EFAULT;
 		}
 	}
-	if (ret)
-		return -EFAULT;
+
 	return 1;	/* exception handled and fixed up */
 }
 
@@ -378,24 +404,27 @@ static int emulate_lq_stq(struct pt_regs
 {
 	char *ptr0 = (char *)&regs->gpr[reg];
 	char *ptr1 = (char *)&regs->gpr[reg+1];
-	int i, ret, sw = 0;
+	int i, sw = 0;
 
 	if (reg & 1)
 		return 0;	/* invalid form: GPR must be even */
 	if (flags & SW)
 		sw = 7;
-	ret = 0;
+
 	for (i = 0; i < 8; ++i) {
 		if (!(flags & ST)) {
-			ret |= __get_user(ptr0[i^sw], addr + i);
-			ret |= __get_user(ptr1[i^sw], addr + i + 8);
+			if (__get_user_or_set_dar(regs, ptr0[i^sw], addr + i))
+				return -EFAULT;
+			if (__get_user_or_set_dar(regs, ptr1[i^sw], addr + i + 8))
+				return -EFAULT;
 		} else {
-			ret |= __put_user(ptr0[i^sw], addr + i);
-			ret |= __put_user(ptr1[i^sw], addr + i + 8);
+			if (__put_user_or_set_dar(regs, ptr0[i^sw], addr + i))
+				return -EFAULT;
+			if (__put_user_or_set_dar(regs, ptr1[i^sw], addr + i + 8))
+				return -EFAULT;
 		}
 	}
-	if (ret)
-		return -EFAULT;
+
 	return 1;	/* exception handled and fixed up */
 }
 #endif /* CONFIG_PPC64 */
@@ -688,9 +717,14 @@ static int emulate_vsx(unsigned char __u
 	for (j = 0; j < length; j += elsize) {
 		for (i = 0; i < elsize; ++i) {
 			if (flags & ST)
-				ret |= __put_user(ptr[i^sw], addr + i);
+				ret = __put_user_or_set_dar(regs, ptr[i^sw],
+							    addr + i);
 			else
-				ret |= __get_user(ptr[i^sw], addr + i);
+				ret = __get_user_or_set_dar(regs, ptr[i^sw],
+							    addr + i);
+
+			if (ret)
+				return ret;
 		}
 		ptr  += elsize;
 #ifdef __LITTLE_ENDIAN__
@@ -740,7 +774,7 @@ int fix_alignment(struct pt_regs *regs)
 	unsigned int dsisr;
 	unsigned char __user *addr;
 	unsigned long p, swiz;
-	int ret, i;
+	int i;
 	union data {
 		u64 ll;
 		double dd;
@@ -808,14 +842,25 @@ int fix_alignment(struct pt_regs *regs)
 	nb = aligninfo[instr].len;
 	flags = aligninfo[instr].flags;
 
-	/* ldbrx/stdbrx overlap lfs/stfs in the DSISR unfortunately */
-	if (IS_XFORM(instruction) && ((instruction >> 1) & 0x3ff) == 532) {
-		nb = 8;
-		flags = LD+SW;
-	} else if (IS_XFORM(instruction) &&
-		   ((instruction >> 1) & 0x3ff) == 660) {
-		nb = 8;
-		flags = ST+SW;
+	/*
+	 * Handle some cases which give overlaps in the DSISR values.
+	 */
+	if (IS_XFORM(instruction)) {
+		switch (get_xop(instruction)) {
+		case 532:	/* ldbrx */
+			nb = 8;
+			flags = LD+SW;
+			break;
+		case 660:	/* stdbrx */
+			nb = 8;
+			flags = ST+SW;
+			break;
+		case 20:	/* lwarx */
+		case 84:	/* ldarx */
+		case 116:	/* lharx */
+		case 276:	/* lqarx */
+			return 0;	/* not emulated ever */
+		}
 	}
 
 	/* Byteswap little endian loads and stores */
@@ -912,7 +957,7 @@ int fix_alignment(struct pt_regs *regs)
 		if (flags & F) {
 			/* Special case for 16-byte FP loads and stores */
 			PPC_WARN_ALIGNMENT(fp_pair, regs);
-			return emulate_fp_pair(addr, reg, flags);
+			return emulate_fp_pair(regs, addr, reg, flags);
 		} else {
 #ifdef CONFIG_PPC64
 			/* Special case for 16-byte loads and stores */
@@ -942,15 +987,12 @@ int fix_alignment(struct pt_regs *regs)
 		}
 
 		data.ll = 0;
-		ret = 0;
 		p = (unsigned long)addr;
 
 		for (i = 0; i < nb; i++)
-			ret |= __get_user_inatomic(data.v[start + i],
-						   SWIZ_PTR(p++));
-
-		if (unlikely(ret))
-			return -EFAULT;
+			if (__get_user_or_set_dar(regs, data.v[start + i],
+						  SWIZ_PTR(p++)))
+				return -EFAULT;
 
 	} else if (flags & F) {
 		data.ll = current->thread.TS_FPR(reg);
@@ -1020,15 +1062,13 @@ int fix_alignment(struct pt_regs *regs)
 			break;
 		}
 
-		ret = 0;
 		p = (unsigned long)addr;
 
 		for (i = 0; i < nb; i++)
-			ret |= __put_user_inatomic(data.v[start + i],
-						   SWIZ_PTR(p++));
+			if (__put_user_or_set_dar(regs, data.v[start + i],
+						  SWIZ_PTR(p++)))
+				return -EFAULT;
 
-		if (unlikely(ret))
-			return -EFAULT;
 	} else if (flags & F)
 		current->thread.TS_FPR(reg) = data.ll;
 	else
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/kernel/asm-offsets.c linux-libre-4.4.107-gnu/arch/powerpc/kernel/asm-offsets.c
--- linux-libre-4.4-gnu/arch/powerpc/kernel/asm-offsets.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/kernel/asm-offsets.c	2017-12-20 04:05:01.000000000 -0500
@@ -584,6 +584,7 @@ int main(void)
 	DEFINE(VCPU_VRS_TM, offsetof(struct kvm_vcpu, arch.vr_tm.vr));
 	DEFINE(VCPU_VRSAVE_TM, offsetof(struct kvm_vcpu, arch.vrsave_tm));
 	DEFINE(VCPU_CR_TM, offsetof(struct kvm_vcpu, arch.cr_tm));
+	DEFINE(VCPU_XER_TM, offsetof(struct kvm_vcpu, arch.xer_tm));
 	DEFINE(VCPU_LR_TM, offsetof(struct kvm_vcpu, arch.lr_tm));
 	DEFINE(VCPU_CTR_TM, offsetof(struct kvm_vcpu, arch.ctr_tm));
 	DEFINE(VCPU_AMR_TM, offsetof(struct kvm_vcpu, arch.amr_tm));
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/kernel/eeh.c linux-libre-4.4.107-gnu/arch/powerpc/kernel/eeh.c
--- linux-libre-4.4-gnu/arch/powerpc/kernel/eeh.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/kernel/eeh.c	2017-12-20 04:05:01.000000000 -0500
@@ -304,9 +304,17 @@ void eeh_slot_error_detail(struct eeh_pe
 	 *
 	 * For pHyp, we have to enable IO for log retrieval. Otherwise,
 	 * 0xFF's is always returned from PCI config space.
+	 *
+	 * When the @severity is EEH_LOG_PERM, the PE is going to be
+	 * removed. Prior to that, the drivers for devices included in
+	 * the PE will be closed. The drivers rely on working IO path
+	 * to bring the devices to quiet state. Otherwise, PCI traffic
+	 * from those devices after they are removed is like to cause
+	 * another unexpected EEH error.
 	 */
 	if (!(pe->type & EEH_PE_PHB)) {
-		if (eeh_has_flag(EEH_ENABLE_IO_FOR_LOG))
+		if (eeh_has_flag(EEH_ENABLE_IO_FOR_LOG) ||
+		    severity == EEH_LOG_PERM)
 			eeh_pci_enable(pe, EEH_OPT_THAW_MMIO);
 
 		/*
@@ -677,7 +685,7 @@ int eeh_pci_enable(struct eeh_pe *pe, in
 	/* Check if the request is finished successfully */
 	if (active_flag) {
 		rc = eeh_ops->wait_state(pe, PCI_BUS_RESET_WAIT_MSEC);
-		if (rc <= 0)
+		if (rc < 0)
 			return rc;
 
 		if (rc & active_flag)
@@ -1072,7 +1080,7 @@ void eeh_add_device_early(struct pci_dn
 	struct pci_controller *phb;
 	struct eeh_dev *edev = pdn_to_eeh_dev(pdn);
 
-	if (!edev || !eeh_enabled())
+	if (!edev)
 		return;
 
 	if (!eeh_has_flag(EEH_PROBE_MODE_DEVTREE))
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/kernel/eeh_driver.c linux-libre-4.4.107-gnu/arch/powerpc/kernel/eeh_driver.c
--- linux-libre-4.4-gnu/arch/powerpc/kernel/eeh_driver.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/kernel/eeh_driver.c	2017-12-20 04:05:01.000000000 -0500
@@ -166,6 +166,16 @@ static void *eeh_dev_save_state(void *da
 	if (!edev)
 		return NULL;
 
+	/*
+	 * We cannot access the config space on some adapters.
+	 * Otherwise, it will cause fenced PHB. We don't save
+	 * the content in their config space and will restore
+	 * from the initial config space saved when the EEH
+	 * device is created.
+	 */
+	if (edev->pe && (edev->pe->state & EEH_PE_CFG_RESTRICTED))
+		return NULL;
+
 	pdev = eeh_dev_to_pci_dev(edev);
 	if (!pdev)
 		return NULL;
@@ -305,6 +315,19 @@ static void *eeh_dev_restore_state(void
 	if (!edev)
 		return NULL;
 
+	/*
+	 * The content in the config space isn't saved because
+	 * the blocked config space on some adapters. We have
+	 * to restore the initial saved config space when the
+	 * EEH device is created.
+	 */
+	if (edev->pe && (edev->pe->state & EEH_PE_CFG_RESTRICTED)) {
+		if (list_is_last(&edev->list, &edev->pe->edevs))
+			eeh_pe_restore_bars(edev->pe);
+
+		return NULL;
+	}
+
 	pdev = eeh_dev_to_pci_dev(edev);
 	if (!pdev)
 		return NULL;
@@ -418,8 +441,7 @@ static void *eeh_rmv_device(void *data,
 		eeh_pcid_put(dev);
 		if (driver->err_handler &&
 		    driver->err_handler->error_detected &&
-		    driver->err_handler->slot_reset &&
-		    driver->err_handler->resume)
+		    driver->err_handler->slot_reset)
 			return NULL;
 	}
 
@@ -463,7 +485,7 @@ static void *eeh_pe_detach_dev(void *dat
 static void *__eeh_clear_pe_frozen_state(void *data, void *flag)
 {
 	struct eeh_pe *pe = (struct eeh_pe *)data;
-	bool *clear_sw_state = flag;
+	bool clear_sw_state = *(bool *)flag;
 	int i, rc = 1;
 
 	for (i = 0; rc && i < 3; i++)
@@ -505,9 +527,6 @@ int eeh_pe_reset_and_recover(struct eeh_
 	/* Save states */
 	eeh_pe_dev_traverse(pe, eeh_dev_save_state, NULL);
 
-	/* Report error */
-	eeh_pe_dev_traverse(pe, eeh_report_error, &result);
-
 	/* Issue reset */
 	ret = eeh_reset_pe(pe);
 	if (ret) {
@@ -564,6 +583,7 @@ static int eeh_reset_device(struct eeh_p
 	 */
 	eeh_pe_state_mark(pe, EEH_PE_KEEP);
 	if (bus) {
+		eeh_pe_state_clear(pe, EEH_PE_PRI_BUS);
 		pci_lock_rescan_remove();
 		pcibios_remove_pci_devices(bus);
 		pci_unlock_rescan_remove();
@@ -592,8 +612,10 @@ static int eeh_reset_device(struct eeh_p
 
 	/* Clear frozen state */
 	rc = eeh_clear_pe_frozen_state(pe, false);
-	if (rc)
+	if (rc) {
+		pci_unlock_rescan_remove();
 		return rc;
+	}
 
 	/* Give the system 5 seconds to finish running the user-space
 	 * hotplug shutdown scripts, e.g. ifdown for ethernet.  Yes,
@@ -633,7 +655,7 @@ static int eeh_reset_device(struct eeh_p
  */
 #define MAX_WAIT_FOR_RECOVERY 300
 
-static void eeh_handle_normal_event(struct eeh_pe *pe)
+static bool eeh_handle_normal_event(struct eeh_pe *pe)
 {
 	struct pci_bus *frozen_bus;
 	int rc = 0;
@@ -643,7 +665,7 @@ static void eeh_handle_normal_event(stru
 	if (!frozen_bus) {
 		pr_err("%s: Cannot find PCI bus for PHB#%d-PE#%x\n",
 			__func__, pe->phb->global_number, pe->addr);
-		return;
+		return false;
 	}
 
 	eeh_pe_update_time_stamp(pe);
@@ -768,7 +790,7 @@ static void eeh_handle_normal_event(stru
 	pr_info("EEH: Notify device driver to resume\n");
 	eeh_pe_dev_traverse(pe, eeh_report_resume, NULL);
 
-	return;
+	return false;
 
 excess_failures:
 	/*
@@ -803,12 +825,17 @@ perm_error:
 	 * the their PCI config any more.
 	 */
 	if (frozen_bus) {
+		eeh_pe_state_clear(pe, EEH_PE_PRI_BUS);
 		eeh_pe_dev_mode_mark(pe, EEH_DEV_REMOVED);
 
 		pci_lock_rescan_remove();
 		pcibios_remove_pci_devices(frozen_bus);
 		pci_unlock_rescan_remove();
+
+		/* The passed PE should no longer be used */
+		return true;
 	}
+	return false;
 }
 
 static void eeh_handle_special_event(void)
@@ -874,7 +901,14 @@ static void eeh_handle_special_event(voi
 		 */
 		if (rc == EEH_NEXT_ERR_FROZEN_PE ||
 		    rc == EEH_NEXT_ERR_FENCED_PHB) {
-			eeh_handle_normal_event(pe);
+			/*
+			 * eeh_handle_normal_event() can make the PE stale if it
+			 * determines that the PE cannot possibly be recovered.
+			 * Don't modify the PE state if that's the case.
+			 */
+			if (eeh_handle_normal_event(pe))
+				continue;
+
 			eeh_pe_state_clear(pe, EEH_PE_RECOVERING);
 		} else {
 			pci_lock_rescan_remove();
@@ -886,7 +920,16 @@ static void eeh_handle_special_event(voi
 					continue;
 
 				/* Notify all devices to be down */
+				eeh_pe_state_clear(pe, EEH_PE_PRI_BUS);
 				bus = eeh_pe_bus_get(phb_pe);
+				if (!bus) {
+					pr_err("%s: Cannot find PCI bus for "
+					       "PHB#%d-PE#%x\n",
+					       __func__,
+					       pe->phb->global_number,
+					       pe->addr);
+					break;
+				}
 				eeh_pe_dev_traverse(pe,
 					eeh_report_failure, NULL);
 				pcibios_remove_pci_devices(bus);
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/kernel/eeh_pe.c linux-libre-4.4.107-gnu/arch/powerpc/kernel/eeh_pe.c
--- linux-libre-4.4-gnu/arch/powerpc/kernel/eeh_pe.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/kernel/eeh_pe.c	2017-12-20 04:05:01.000000000 -0500
@@ -883,32 +883,29 @@ void eeh_pe_restore_bars(struct eeh_pe *
 const char *eeh_pe_loc_get(struct eeh_pe *pe)
 {
 	struct pci_bus *bus = eeh_pe_bus_get(pe);
-	struct device_node *dn = pci_bus_to_OF_node(bus);
+	struct device_node *dn;
 	const char *loc = NULL;
 
-	if (!dn)
-		goto out;
+	while (bus) {
+		dn = pci_bus_to_OF_node(bus);
+		if (!dn) {
+			bus = bus->parent;
+			continue;
+		}
 
-	/* PHB PE or root PE ? */
-	if (pci_is_root_bus(bus)) {
-		loc = of_get_property(dn, "ibm,loc-code", NULL);
-		if (!loc)
+		if (pci_is_root_bus(bus))
 			loc = of_get_property(dn, "ibm,io-base-loc-code", NULL);
+		else
+			loc = of_get_property(dn, "ibm,slot-location-code",
+					      NULL);
+
 		if (loc)
-			goto out;
+			return loc;
 
-		/* Check the root port */
-		dn = dn->child;
-		if (!dn)
-			goto out;
+		bus = bus->parent;
 	}
 
-	loc = of_get_property(dn, "ibm,loc-code", NULL);
-	if (!loc)
-		loc = of_get_property(dn, "ibm,slot-location-code", NULL);
-
-out:
-	return loc ? loc : "N/A";
+	return "N/A";
 }
 
 /**
@@ -931,7 +928,7 @@ struct pci_bus *eeh_pe_bus_get(struct ee
 		bus = pe->phb->bus;
 	} else if (pe->type & EEH_PE_BUS ||
 		   pe->type & EEH_PE_DEVICE) {
-		if (pe->bus) {
+		if (pe->state & EEH_PE_PRI_BUS) {
 			bus = pe->bus;
 			goto out;
 		}
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/kernel/entry_64.S linux-libre-4.4.107-gnu/arch/powerpc/kernel/entry_64.S
--- linux-libre-4.4-gnu/arch/powerpc/kernel/entry_64.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/kernel/entry_64.S	2017-12-20 04:05:01.000000000 -0500
@@ -334,13 +334,13 @@ syscall_exit_work:
 tabort_syscall:
 	/* Firstly we need to enable TM in the kernel */
 	mfmsr	r10
-	li	r13, 1
-	rldimi	r10, r13, MSR_TM_LG, 63-MSR_TM_LG
+	li	r9, 1
+	rldimi	r10, r9, MSR_TM_LG, 63-MSR_TM_LG
 	mtmsrd	r10, 0
 
 	/* tabort, this dooms the transaction, nothing else */
-	li	r13, (TM_CAUSE_SYSCALL|TM_CAUSE_PERSISTENT)
-	TABORT(R13)
+	li	r9, (TM_CAUSE_SYSCALL|TM_CAUSE_PERSISTENT)
+	TABORT(R9)
 
 	/*
 	 * Return directly to userspace. We have corrupted user register state,
@@ -348,8 +348,8 @@ tabort_syscall:
 	 * resume after the tbegin of the aborted transaction with the
 	 * checkpointed register state.
 	 */
-	li	r13, MSR_RI
-	andc	r10, r10, r13
+	li	r9, MSR_RI
+	andc	r10, r10, r9
 	mtmsrd	r10, 1
 	mtspr	SPRN_SRR0, r11
 	mtspr	SPRN_SRR1, r12
@@ -716,7 +716,7 @@ resume_kernel:
 
 	addi	r8,r1,INT_FRAME_SIZE	/* Get the kprobed function entry */
 
-	lwz	r3,GPR1(r1)
+	ld	r3,GPR1(r1)
 	subi	r3,r3,INT_FRAME_SIZE	/* dst: Allocate a trampoline exception frame */
 	mr	r4,r1			/* src:  current exception frame */
 	mr	r1,r3			/* Reroute the trampoline frame to r1 */
@@ -730,8 +730,8 @@ resume_kernel:
 	addi	r6,r6,8
 	bdnz	2b
 
-	/* Do real store operation to complete stwu */
-	lwz	r5,GPR1(r1)
+	/* Do real store operation to complete stdu */
+	ld	r5,GPR1(r1)
 	std	r8,0(r5)
 
 	/* Clear _TIF_EMULATE_STACK_STORE flag */
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/kernel/exceptions-64e.S linux-libre-4.4.107-gnu/arch/powerpc/kernel/exceptions-64e.S
--- linux-libre-4.4-gnu/arch/powerpc/kernel/exceptions-64e.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/kernel/exceptions-64e.S	2017-12-20 04:05:01.000000000 -0500
@@ -735,8 +735,14 @@ END_FTR_SECTION_IFSET(CPU_FTR_ALTIVEC)
 	andis.	r15,r14,(DBSR_IC|DBSR_BT)@h
 	beq+	1f
 
+#ifdef CONFIG_RELOCATABLE
+	ld	r15,PACATOC(r13)
+	ld	r14,interrupt_base_book3e@got(r15)
+	ld	r15,__end_interrupts@got(r15)
+#else
 	LOAD_REG_IMMEDIATE(r14,interrupt_base_book3e)
 	LOAD_REG_IMMEDIATE(r15,__end_interrupts)
+#endif
 	cmpld	cr0,r10,r14
 	cmpld	cr1,r10,r15
 	blt+	cr0,1f
@@ -799,8 +805,14 @@ kernel_dbg_exc:
 	andis.	r15,r14,(DBSR_IC|DBSR_BT)@h
 	beq+	1f
 
+#ifdef CONFIG_RELOCATABLE
+	ld	r15,PACATOC(r13)
+	ld	r14,interrupt_base_book3e@got(r15)
+	ld	r15,__end_interrupts@got(r15)
+#else
 	LOAD_REG_IMMEDIATE(r14,interrupt_base_book3e)
 	LOAD_REG_IMMEDIATE(r15,__end_interrupts)
+#endif
 	cmpld	cr0,r10,r14
 	cmpld	cr1,r10,r15
 	blt+	cr0,1f
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/kernel/exceptions-64s.S linux-libre-4.4.107-gnu/arch/powerpc/kernel/exceptions-64s.S
--- linux-libre-4.4-gnu/arch/powerpc/kernel/exceptions-64s.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/kernel/exceptions-64s.S	2017-12-20 04:05:01.000000000 -0500
@@ -962,11 +962,6 @@ hv_facility_unavailable_relon_trampoline
 #endif
 	STD_RELON_EXCEPTION_PSERIES(0x5700, 0x1700, altivec_assist)
 
-	/* Other future vectors */
-	.align	7
-	.globl	__end_interrupts
-__end_interrupts:
-
 	.align	7
 system_call_entry:
 	b	system_call_common
@@ -1253,6 +1248,17 @@ __end_handlers:
 	STD_RELON_EXCEPTION_PSERIES_OOL(0xf60, facility_unavailable)
 	STD_RELON_EXCEPTION_HV_OOL(0xf80, hv_facility_unavailable)
 
+	/*
+	 * The __end_interrupts marker must be past the out-of-line (OOL)
+	 * handlers, so that they are copied to real address 0x100 when running
+	 * a relocatable kernel. This ensures they can be reached from the short
+	 * trampoline handlers (like 0x4f00, 0x4f20, etc.) which branch
+	 * directly, without using LOAD_HANDLER().
+	 */
+	.align	7
+	.globl	__end_interrupts
+__end_interrupts:
+
 #if defined(CONFIG_PPC_PSERIES) || defined(CONFIG_PPC_POWERNV)
 /*
  * Data area reserved for FWNMI option.
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/kernel/hw_breakpoint.c linux-libre-4.4.107-gnu/arch/powerpc/kernel/hw_breakpoint.c
--- linux-libre-4.4-gnu/arch/powerpc/kernel/hw_breakpoint.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/kernel/hw_breakpoint.c	2017-12-20 04:05:01.000000000 -0500
@@ -227,8 +227,10 @@ int __kprobes hw_breakpoint_handler(stru
 	rcu_read_lock();
 
 	bp = __this_cpu_read(bp_per_reg);
-	if (!bp)
+	if (!bp) {
+		rc = NOTIFY_DONE;
 		goto out;
+	}
 	info = counter_arch_bp(bp);
 
 	/*
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/kernel/ibmebus.c linux-libre-4.4.107-gnu/arch/powerpc/kernel/ibmebus.c
--- linux-libre-4.4-gnu/arch/powerpc/kernel/ibmebus.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/kernel/ibmebus.c	2017-12-20 04:05:01.000000000 -0500
@@ -180,6 +180,7 @@ static int ibmebus_create_device(struct
 static int ibmebus_create_devices(const struct of_device_id *matches)
 {
 	struct device_node *root, *child;
+	struct device *dev;
 	int ret = 0;
 
 	root = of_find_node_by_path("/");
@@ -188,9 +189,12 @@ static int ibmebus_create_devices(const
 		if (!of_match_node(matches, child))
 			continue;
 
-		if (bus_find_device(&ibmebus_bus_type, NULL, child,
-				    ibmebus_match_node))
+		dev = bus_find_device(&ibmebus_bus_type, NULL, child,
+				      ibmebus_match_node);
+		if (dev) {
+			put_device(dev);
 			continue;
+		}
 
 		ret = ibmebus_create_device(child);
 		if (ret) {
@@ -262,6 +266,7 @@ static ssize_t ibmebus_store_probe(struc
 				   const char *buf, size_t count)
 {
 	struct device_node *dn = NULL;
+	struct device *dev;
 	char *path;
 	ssize_t rc = 0;
 
@@ -269,8 +274,10 @@ static ssize_t ibmebus_store_probe(struc
 	if (!path)
 		return -ENOMEM;
 
-	if (bus_find_device(&ibmebus_bus_type, NULL, path,
-			    ibmebus_match_path)) {
+	dev = bus_find_device(&ibmebus_bus_type, NULL, path,
+			      ibmebus_match_path);
+	if (dev) {
+		put_device(dev);
 		printk(KERN_WARNING "%s: %s has already been probed\n",
 		       __func__, path);
 		rc = -EEXIST;
@@ -307,6 +314,7 @@ static ssize_t ibmebus_store_remove(stru
 	if ((dev = bus_find_device(&ibmebus_bus_type, NULL, path,
 				   ibmebus_match_path))) {
 		of_device_unregister(to_platform_device(dev));
+		put_device(dev);
 
 		kfree(path);
 		return count;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/kernel/idle_power7.S linux-libre-4.4.107-gnu/arch/powerpc/kernel/idle_power7.S
--- linux-libre-4.4-gnu/arch/powerpc/kernel/idle_power7.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/kernel/idle_power7.S	2017-12-20 04:05:01.000000000 -0500
@@ -44,7 +44,7 @@
 	std	r0,0(r1);					\
 	ptesync;						\
 	ld	r0,0(r1);					\
-1:	cmp	cr0,r0,r0;					\
+1:	cmpd	cr0,r0,r0;					\
 	bne	1b;						\
 	IDLE_INST;						\
 	b	.
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/kernel/kprobes.c linux-libre-4.4.107-gnu/arch/powerpc/kernel/kprobes.c
--- linux-libre-4.4-gnu/arch/powerpc/kernel/kprobes.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/kernel/kprobes.c	2017-12-20 04:05:01.000000000 -0500
@@ -514,6 +514,15 @@ int __kprobes setjmp_pre_handler(struct
 #endif
 #endif
 
+	/*
+	 * jprobes use jprobe_return() which skips the normal return
+	 * path of the function, and this messes up the accounting of the
+	 * function graph tracer.
+	 *
+	 * Pause function graph tracing while performing the jprobe function.
+	 */
+	pause_graph_tracing();
+
 	return 1;
 }
 
@@ -536,6 +545,8 @@ int __kprobes longjmp_break_handler(stru
 	 * saved regs...
 	 */
 	memcpy(regs, &kcb->jprobe_saved_regs, sizeof(struct pt_regs));
+	/* It's OK to start function graph tracing again */
+	unpause_graph_tracing();
 	preempt_enable_no_resched();
 	return 1;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/kernel/mce.c linux-libre-4.4.107-gnu/arch/powerpc/kernel/mce.c
--- linux-libre-4.4-gnu/arch/powerpc/kernel/mce.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/kernel/mce.c	2017-12-20 04:05:01.000000000 -0500
@@ -204,6 +204,8 @@ static void machine_check_process_queued
 {
 	int index;
 
+	add_taint(TAINT_MACHINE_CHECK, LOCKDEP_NOW_UNRELIABLE);
+
 	/*
 	 * For now just print it to console.
 	 * TODO: log this error event to FSP or nvram.
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/kernel/misc_32.S linux-libre-4.4.107-gnu/arch/powerpc/kernel/misc_32.S
--- linux-libre-4.4-gnu/arch/powerpc/kernel/misc_32.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/kernel/misc_32.S	2017-12-20 04:05:01.000000000 -0500
@@ -313,7 +313,7 @@ _GLOBAL(flush_instruction_cache)
 	lis	r3, KERNELBASE@h
 	iccci	0,r3
 #endif
-#elif CONFIG_FSL_BOOKE
+#elif defined(CONFIG_FSL_BOOKE)
 BEGIN_FTR_SECTION
 	mfspr   r3,SPRN_L1CSR0
 	ori     r3,r3,L1CSR0_CFI|L1CSR0_CLFC
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/kernel/module_64.c linux-libre-4.4.107-gnu/arch/powerpc/kernel/module_64.c
--- linux-libre-4.4-gnu/arch/powerpc/kernel/module_64.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/kernel/module_64.c	2017-12-20 04:05:01.000000000 -0500
@@ -335,7 +335,7 @@ static void dedotify(Elf64_Sym *syms, un
 		if (syms[i].st_shndx == SHN_UNDEF) {
 			char *name = strtab + syms[i].st_name;
 			if (name[0] == '.')
-				memmove(name, name+1, strlen(name));
+				syms[i].st_name++;
 		}
 	}
 }
@@ -635,6 +635,33 @@ int apply_relocate_add(Elf64_Shdr *sechd
 			 */
 			break;
 
+		case R_PPC64_ENTRY:
+			/*
+			 * Optimize ELFv2 large code model entry point if
+			 * the TOC is within 2GB range of current location.
+			 */
+			value = my_r2(sechdrs, me) - (unsigned long)location;
+			if (value + 0x80008000 > 0xffffffff)
+				break;
+			/*
+			 * Check for the large code model prolog sequence:
+		         *	ld r2, ...(r12)
+			 *	add r2, r2, r12
+			 */
+			if ((((uint32_t *)location)[0] & ~0xfffc)
+			    != 0xe84c0000)
+				break;
+			if (((uint32_t *)location)[1] != 0x7c426214)
+				break;
+			/*
+			 * If found, replace it with:
+			 *	addis r2, r12, (.TOC.-func)@ha
+			 *	addi r2, r12, (.TOC.-func)@l
+			 */
+			((uint32_t *)location)[0] = 0x3c4c0000 + PPC_HA(value);
+			((uint32_t *)location)[1] = 0x38420000 + PPC_LO(value);
+			break;
+
 		case R_PPC64_REL16_HA:
 			/* Subtract location pointer */
 			value -= (unsigned long)location;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/kernel/nvram_64.c linux-libre-4.4.107-gnu/arch/powerpc/kernel/nvram_64.c
--- linux-libre-4.4-gnu/arch/powerpc/kernel/nvram_64.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/kernel/nvram_64.c	2017-12-20 04:05:01.000000000 -0500
@@ -969,7 +969,7 @@ int __init nvram_remove_partition(const
 
 		/* Make partition a free partition */
 		part->header.signature = NVRAM_SIG_FREE;
-		strncpy(part->header.name, "wwwwwwwwwwww", 12);
+		memset(part->header.name, 'w', 12);
 		part->header.checksum = nvram_checksum(&part->header);
 		rc = nvram_write_header(part);
 		if (rc <= 0) {
@@ -987,8 +987,8 @@ int __init nvram_remove_partition(const
 		}
 		if (prev) {
 			prev->header.length += part->header.length;
-			prev->header.checksum = nvram_checksum(&part->header);
-			rc = nvram_write_header(part);
+			prev->header.checksum = nvram_checksum(&prev->header);
+			rc = nvram_write_header(prev);
 			if (rc <= 0) {
 				printk(KERN_ERR "nvram_remove_partition: nvram_write failed (%d)\n", rc);
 				return rc;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/kernel/process.c linux-libre-4.4.107-gnu/arch/powerpc/kernel/process.c
--- linux-libre-4.4-gnu/arch/powerpc/kernel/process.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/kernel/process.c	2017-12-20 04:05:01.000000000 -0500
@@ -1239,6 +1239,16 @@ void start_thread(struct pt_regs *regs,
 		current->thread.regs = regs - 1;
 	}
 
+#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
+	/*
+	 * Clear any transactional state, we're exec()ing. The cause is
+	 * not important as there will never be a recheckpoint so it's not
+	 * user visible.
+	 */
+	if (MSR_TM_SUSPENDED(mfmsr()))
+		tm_reclaim_current(0);
+#endif
+
 	memset(regs->gpr, 0, sizeof(regs->gpr));
 	regs->ctr = 0;
 	regs->link = 0;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/kernel/prom.c linux-libre-4.4.107-gnu/arch/powerpc/kernel/prom.c
--- linux-libre-4.4-gnu/arch/powerpc/kernel/prom.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/kernel/prom.c	2017-12-20 04:05:01.000000000 -0500
@@ -148,23 +148,25 @@ static struct ibm_pa_feature {
 	unsigned long	cpu_features;	/* CPU_FTR_xxx bit */
 	unsigned long	mmu_features;	/* MMU_FTR_xxx bit */
 	unsigned int	cpu_user_ftrs;	/* PPC_FEATURE_xxx bit */
+	unsigned int	cpu_user_ftrs2;	/* PPC_FEATURE2_xxx bit */
 	unsigned char	pabyte;		/* byte number in ibm,pa-features */
 	unsigned char	pabit;		/* bit number (big-endian) */
 	unsigned char	invert;		/* if 1, pa bit set => clear feature */
 } ibm_pa_features[] __initdata = {
-	{0, 0, PPC_FEATURE_HAS_MMU,	0, 0, 0},
-	{0, 0, PPC_FEATURE_HAS_FPU,	0, 1, 0},
-	{CPU_FTR_CTRL, 0, 0,		0, 3, 0},
-	{CPU_FTR_NOEXECUTE, 0, 0,	0, 6, 0},
-	{CPU_FTR_NODSISRALIGN, 0, 0,	1, 1, 1},
-	{0, MMU_FTR_CI_LARGE_PAGE, 0,	1, 2, 0},
-	{CPU_FTR_REAL_LE, PPC_FEATURE_TRUE_LE, 5, 0, 0},
+	{0, 0, PPC_FEATURE_HAS_MMU, 0,		0, 0, 0},
+	{0, 0, PPC_FEATURE_HAS_FPU, 0,		0, 1, 0},
+	{CPU_FTR_CTRL, 0, 0, 0,			0, 3, 0},
+	{CPU_FTR_NOEXECUTE, 0, 0, 0,		0, 6, 0},
+	{CPU_FTR_NODSISRALIGN, 0, 0, 0,		1, 1, 1},
+	{0, MMU_FTR_CI_LARGE_PAGE, 0, 0,		1, 2, 0},
+	{CPU_FTR_REAL_LE, 0, PPC_FEATURE_TRUE_LE, 0, 5, 0, 0},
 	/*
-	 * If the kernel doesn't support TM (ie. CONFIG_PPC_TRANSACTIONAL_MEM=n),
-	 * we don't want to turn on CPU_FTR_TM here, so we use CPU_FTR_TM_COMP
-	 * which is 0 if the kernel doesn't support TM.
+	 * If the kernel doesn't support TM (ie CONFIG_PPC_TRANSACTIONAL_MEM=n),
+	 * we don't want to turn on TM here, so we use the *_COMP versions
+	 * which are 0 if the kernel doesn't support TM.
 	 */
-	{CPU_FTR_TM_COMP, 0, 0,		22, 0, 0},
+	{CPU_FTR_TM_COMP, 0, 0,
+	 PPC_FEATURE2_HTM_COMP|PPC_FEATURE2_HTM_NOSC_COMP, 22, 0, 0},
 };
 
 static void __init scan_features(unsigned long node, const unsigned char *ftrs,
@@ -195,10 +197,12 @@ static void __init scan_features(unsigne
 		if (bit ^ fp->invert) {
 			cur_cpu_spec->cpu_features |= fp->cpu_features;
 			cur_cpu_spec->cpu_user_features |= fp->cpu_user_ftrs;
+			cur_cpu_spec->cpu_user_features2 |= fp->cpu_user_ftrs2;
 			cur_cpu_spec->mmu_features |= fp->mmu_features;
 		} else {
 			cur_cpu_spec->cpu_features &= ~fp->cpu_features;
 			cur_cpu_spec->cpu_user_features &= ~fp->cpu_user_ftrs;
+			cur_cpu_spec->cpu_user_features2 &= ~fp->cpu_user_ftrs2;
 			cur_cpu_spec->mmu_features &= ~fp->mmu_features;
 		}
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/kernel/prom_init.c linux-libre-4.4.107-gnu/arch/powerpc/kernel/prom_init.c
--- linux-libre-4.4-gnu/arch/powerpc/kernel/prom_init.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/kernel/prom_init.c	2017-12-20 04:05:01.000000000 -0500
@@ -655,6 +655,7 @@ unsigned char ibm_architecture_vec[] = {
 	W(0xffff0000), W(0x003e0000),	/* POWER6 */
 	W(0xffff0000), W(0x003f0000),	/* POWER7 */
 	W(0xffff0000), W(0x004b0000),	/* POWER8E */
+	W(0xffff0000), W(0x004c0000),   /* POWER8NVL */
 	W(0xffff0000), W(0x004d0000),	/* POWER8 */
 	W(0xffffffff), W(0x0f000004),	/* all 2.07-compliant */
 	W(0xffffffff), W(0x0f000003),	/* all 2.06-compliant */
@@ -693,7 +694,7 @@ unsigned char ibm_architecture_vec[] = {
 	OV4_MIN_ENT_CAP,		/* minimum VP entitled capacity */
 
 	/* option vector 5: PAPR/OF options */
-	VECTOR_LENGTH(18),		/* length */
+	VECTOR_LENGTH(21),		/* length */
 	0,				/* don't ignore, don't halt */
 	OV5_FEAT(OV5_LPAR) | OV5_FEAT(OV5_SPLPAR) | OV5_FEAT(OV5_LARGE_PAGES) |
 	OV5_FEAT(OV5_DRCONF_MEMORY) | OV5_FEAT(OV5_DONATE_DEDICATE_CPU) |
@@ -717,15 +718,18 @@ unsigned char ibm_architecture_vec[] = {
 	 * must match by the macro below. Update the definition if
 	 * the structure layout changes.
 	 */
-#define IBM_ARCH_VEC_NRCORES_OFFSET	125
+#define IBM_ARCH_VEC_NRCORES_OFFSET	133
 	W(NR_CPUS),			/* number of cores supported */
 	0,
 	0,
 	0,
 	0,
 	OV5_FEAT(OV5_PFO_HW_RNG) | OV5_FEAT(OV5_PFO_HW_ENCR) |
-	OV5_FEAT(OV5_PFO_HW_842),
-	OV5_FEAT(OV5_SUB_PROCESSORS),
+	OV5_FEAT(OV5_PFO_HW_842),				/* Byte 17 */
+	0,							/* Byte 18 */
+	0,							/* Byte 19 */
+	0,							/* Byte 20 */
+	OV5_FEAT(OV5_SUB_PROCESSORS),				/* Byte 21 */
 
 	/* option vector 6: IBM PAPR hints */
 	VECTOR_LENGTH(3),		/* length */
@@ -2660,6 +2664,9 @@ static void __init prom_find_boot_cpu(vo
 
 	cpu_pkg = call_prom("instance-to-package", 1, 1, prom_cpu);
 
+	if (!PHANDLE_VALID(cpu_pkg))
+		return;
+
 	prom_getprop(cpu_pkg, "reg", &rval, sizeof(rval));
 	prom.cpu = be32_to_cpu(rval);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/kernel/ptrace.c linux-libre-4.4.107-gnu/arch/powerpc/kernel/ptrace.c
--- linux-libre-4.4-gnu/arch/powerpc/kernel/ptrace.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/kernel/ptrace.c	2017-12-20 04:05:01.000000000 -0500
@@ -376,7 +376,7 @@ static int fpr_get(struct task_struct *t
 
 #else
 	BUILD_BUG_ON(offsetof(struct thread_fp_state, fpscr) !=
-		     offsetof(struct thread_fp_state, fpr[32][0]));
+		     offsetof(struct thread_fp_state, fpr[32]));
 
 	return user_regset_copyout(&pos, &count, &kbuf, &ubuf,
 				   &target->thread.fp_state, 0, -1);
@@ -404,7 +404,7 @@ static int fpr_set(struct task_struct *t
 	return 0;
 #else
 	BUILD_BUG_ON(offsetof(struct thread_fp_state, fpscr) !=
-		     offsetof(struct thread_fp_state, fpr[32][0]));
+		     offsetof(struct thread_fp_state, fpr[32]));
 
 	return user_regset_copyin(&pos, &count, &kbuf, &ubuf,
 				  &target->thread.fp_state, 0, -1);
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/kernel/setup_64.c linux-libre-4.4.107-gnu/arch/powerpc/kernel/setup_64.c
--- linux-libre-4.4-gnu/arch/powerpc/kernel/setup_64.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/kernel/setup_64.c	2017-12-20 04:05:01.000000000 -0500
@@ -220,6 +220,15 @@ static void cpu_ready_for_interrupts(voi
 		unsigned long lpcr = mfspr(SPRN_LPCR);
 		mtspr(SPRN_LPCR, lpcr | LPCR_AIL_3);
 	}
+
+	/*
+	 * Fixup HFSCR:TM based on CPU features. The bit is set by our
+	 * early asm init because at that point we haven't updated our
+	 * CPU features from firmware and device-tree. Here we have,
+	 * so let's do it.
+	 */
+	if (cpu_has_feature(CPU_FTR_HVMODE) && !cpu_has_feature(CPU_FTR_TM_COMP))
+		mtspr(SPRN_HFSCR, mfspr(SPRN_HFSCR) & ~HFSCR_TM);
 }
 
 /*
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/kernel/signal.c linux-libre-4.4.107-gnu/arch/powerpc/kernel/signal.c
--- linux-libre-4.4-gnu/arch/powerpc/kernel/signal.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/kernel/signal.c	2017-12-20 04:05:01.000000000 -0500
@@ -102,7 +102,7 @@ static void check_syscall_restart(struct
 static void do_signal(struct pt_regs *regs)
 {
 	sigset_t *oldset = sigmask_to_save();
-	struct ksignal ksig;
+	struct ksignal ksig = { .sig = 0 };
 	int ret;
 	int is32 = is_32bit_task();
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/kernel/tm.S linux-libre-4.4.107-gnu/arch/powerpc/kernel/tm.S
--- linux-libre-4.4-gnu/arch/powerpc/kernel/tm.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/kernel/tm.S	2017-12-20 04:05:01.000000000 -0500
@@ -110,17 +110,11 @@ _GLOBAL(tm_reclaim)
 	std	r3, STK_PARAM(R3)(r1)
 	SAVE_NVGPRS(r1)
 
-	/* We need to setup MSR for VSX register save instructions.  Here we
-	 * also clear the MSR RI since when we do the treclaim, we won't have a
-	 * valid kernel pointer for a while.  We clear RI here as it avoids
-	 * adding another mtmsr closer to the treclaim.  This makes the region
-	 * maked as non-recoverable wider than it needs to be but it saves on
-	 * inserting another mtmsrd later.
-	 */
+	/* We need to setup MSR for VSX register save instructions. */
 	mfmsr	r14
 	mr	r15, r14
 	ori	r15, r15, MSR_FP
-	li	r16, MSR_RI
+	li	r16, 0
 	ori	r16, r16, MSR_EE /* IRQs hard off */
 	andc	r15, r15, r16
 	oris	r15, r15, MSR_VEC@h
@@ -176,7 +170,17 @@ dont_backup_fp:
 1:	tdeqi   r6, 0
 	EMIT_BUG_ENTRY 1b,__FILE__,__LINE__,0
 
-	/* The moment we treclaim, ALL of our GPRs will switch
+	/* Clear MSR RI since we are about to change r1, EE is already off. */
+	li	r4, 0
+	mtmsrd	r4, 1
+
+	/*
+	 * BE CAREFUL HERE:
+	 * At this point we can't take an SLB miss since we have MSR_RI
+	 * off. Load only to/from the stack/paca which are in SLB bolted regions
+	 * until we turn MSR RI back on.
+	 *
+	 * The moment we treclaim, ALL of our GPRs will switch
 	 * to user register state.  (FPRs, CCR etc. also!)
 	 * Use an sprg and a tm_scratch in the PACA to shuffle.
 	 */
@@ -197,6 +201,11 @@ dont_backup_fp:
 
 	/* Store the PPR in r11 and reset to decent value */
 	std	r11, GPR11(r1)			/* Temporary stash */
+
+	/* Reset MSR RI so we can take SLB faults again */
+	li	r11, MSR_RI
+	mtmsrd	r11, 1
+
 	mfspr	r11, SPRN_PPR
 	HMT_MEDIUM
 
@@ -397,11 +406,6 @@ restore_gprs:
 	ld	r5, THREAD_TM_DSCR(r3)
 	ld	r6, THREAD_TM_PPR(r3)
 
-	/* Clear the MSR RI since we are about to change R1.  EE is already off
-	 */
-	li	r4, 0
-	mtmsrd	r4, 1
-
 	REST_GPR(0, r7)				/* GPR0 */
 	REST_2GPRS(2, r7)			/* GPR2-3 */
 	REST_GPR(4, r7)				/* GPR4 */
@@ -439,10 +443,33 @@ restore_gprs:
 	ld	r6, _CCR(r7)
 	mtcr    r6
 
-	REST_GPR(1, r7)				/* GPR1 */
-	REST_GPR(5, r7)				/* GPR5-7 */
 	REST_GPR(6, r7)
-	ld	r7, GPR7(r7)
+
+	/*
+	 * Store r1 and r5 on the stack so that we can access them
+	 * after we clear MSR RI.
+	 */
+
+	REST_GPR(5, r7)
+	std	r5, -8(r1)
+	ld	r5, GPR1(r7)
+	std	r5, -16(r1)
+
+	REST_GPR(7, r7)
+
+	/* Clear MSR RI since we are about to change r1. EE is already off */
+	li	r5, 0
+	mtmsrd	r5, 1
+
+	/*
+	 * BE CAREFUL HERE:
+	 * At this point we can't take an SLB miss since we have MSR_RI
+	 * off. Load only to/from the stack/paca which are in SLB bolted regions
+	 * until we turn MSR RI back on.
+	 */
+
+	ld	r5, -8(r1)
+	ld	r1, -16(r1)
 
 	/* Commit register state as checkpointed state: */
 	TRECHKPT
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/kernel/traps.c linux-libre-4.4.107-gnu/arch/powerpc/kernel/traps.c
--- linux-libre-4.4-gnu/arch/powerpc/kernel/traps.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/kernel/traps.c	2017-12-20 04:05:01.000000000 -0500
@@ -297,8 +297,6 @@ long machine_check_early(struct pt_regs
 
 	__this_cpu_inc(irq_stat.mce_exceptions);
 
-	add_taint(TAINT_MACHINE_CHECK, LOCKDEP_NOW_UNRELIABLE);
-
 	if (cur_cpu_spec && cur_cpu_spec->machine_check_early)
 		handled = cur_cpu_spec->machine_check_early(regs);
 	return handled;
@@ -704,6 +702,8 @@ void machine_check_exception(struct pt_r
 
 	__this_cpu_inc(irq_stat.mce_exceptions);
 
+	add_taint(TAINT_MACHINE_CHECK, LOCKDEP_NOW_UNRELIABLE);
+
 	/* See if any machine dependent calls. In theory, we would want
 	 * to call the CPU first, and call the ppc_md. one if the CPU
 	 * one returns a positive number. However there is existing code
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/kernel/vdso64/datapage.S linux-libre-4.4.107-gnu/arch/powerpc/kernel/vdso64/datapage.S
--- linux-libre-4.4-gnu/arch/powerpc/kernel/vdso64/datapage.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/kernel/vdso64/datapage.S	2017-12-20 04:05:01.000000000 -0500
@@ -59,7 +59,7 @@ V_FUNCTION_BEGIN(__kernel_get_syscall_ma
 	bl	V_LOCAL_FUNC(__get_datapage)
 	mtlr	r12
 	addi	r3,r3,CFG_SYSCALL_MAP64
-	cmpli	cr0,r4,0
+	cmpldi	cr0,r4,0
 	crclr	cr0*4+so
 	beqlr
 	li	r0,__NR_syscalls
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/kernel/vdso64/gettimeofday.S linux-libre-4.4.107-gnu/arch/powerpc/kernel/vdso64/gettimeofday.S
--- linux-libre-4.4-gnu/arch/powerpc/kernel/vdso64/gettimeofday.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/kernel/vdso64/gettimeofday.S	2017-12-20 04:05:01.000000000 -0500
@@ -145,7 +145,7 @@ V_FUNCTION_BEGIN(__kernel_clock_getres)
 	bne	cr0,99f
 
 	li	r3,0
-	cmpli	cr0,r4,0
+	cmpldi	cr0,r4,0
 	crclr	cr0*4+so
 	beqlr
 	lis	r5,CLOCK_REALTIME_RES@h
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/kvm/book3s_64_vio.c linux-libre-4.4.107-gnu/arch/powerpc/kvm/book3s_64_vio.c
--- linux-libre-4.4-gnu/arch/powerpc/kvm/book3s_64_vio.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/kvm/book3s_64_vio.c	2017-12-20 04:05:01.000000000 -0500
@@ -101,22 +101,17 @@ long kvm_vm_ioctl_create_spapr_tce(struc
 				   struct kvm_create_spapr_tce *args)
 {
 	struct kvmppc_spapr_tce_table *stt = NULL;
+	struct kvmppc_spapr_tce_table *siter;
 	long npages;
 	int ret = -ENOMEM;
 	int i;
 
-	/* Check this LIOBN hasn't been previously allocated */
-	list_for_each_entry(stt, &kvm->arch.spapr_tce_tables, list) {
-		if (stt->liobn == args->liobn)
-			return -EBUSY;
-	}
-
 	npages = kvmppc_stt_npages(args->window_size);
 
 	stt = kzalloc(sizeof(*stt) + npages * sizeof(struct page *),
 		      GFP_KERNEL);
 	if (!stt)
-		goto fail;
+		return ret;
 
 	stt->liobn = args->liobn;
 	stt->window_size = args->window_size;
@@ -128,23 +123,36 @@ long kvm_vm_ioctl_create_spapr_tce(struc
 			goto fail;
 	}
 
-	kvm_get_kvm(kvm);
-
 	mutex_lock(&kvm->lock);
-	list_add(&stt->list, &kvm->arch.spapr_tce_tables);
+
+	/* Check this LIOBN hasn't been previously allocated */
+	ret = 0;
+	list_for_each_entry(siter, &kvm->arch.spapr_tce_tables, list) {
+		if (siter->liobn == args->liobn) {
+			ret = -EBUSY;
+			break;
+		}
+	}
+
+	if (!ret)
+		ret = anon_inode_getfd("kvm-spapr-tce", &kvm_spapr_tce_fops,
+				       stt, O_RDWR | O_CLOEXEC);
+
+	if (ret >= 0) {
+		list_add(&stt->list, &kvm->arch.spapr_tce_tables);
+		kvm_get_kvm(kvm);
+	}
 
 	mutex_unlock(&kvm->lock);
 
-	return anon_inode_getfd("kvm-spapr-tce", &kvm_spapr_tce_fops,
-				stt, O_RDWR | O_CLOEXEC);
+	if (ret >= 0)
+		return ret;
 
-fail:
-	if (stt) {
-		for (i = 0; i < npages; i++)
-			if (stt->pages[i])
-				__free_page(stt->pages[i]);
+ fail:
+	for (i = 0; i < npages; i++)
+		if (stt->pages[i])
+			__free_page(stt->pages[i]);
 
-		kfree(stt);
-	}
+	kfree(stt);
 	return ret;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/kvm/book3s_emulate.c linux-libre-4.4.107-gnu/arch/powerpc/kvm/book3s_emulate.c
--- linux-libre-4.4-gnu/arch/powerpc/kvm/book3s_emulate.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/kvm/book3s_emulate.c	2017-12-20 04:05:01.000000000 -0500
@@ -498,6 +498,7 @@ int kvmppc_core_emulate_mtspr_pr(struct
 	case SPRN_MMCR0:
 	case SPRN_MMCR1:
 	case SPRN_MMCR2:
+	case SPRN_UMMCR2:
 #endif
 		break;
 unprivileged:
@@ -640,6 +641,7 @@ int kvmppc_core_emulate_mfspr_pr(struct
 	case SPRN_MMCR0:
 	case SPRN_MMCR1:
 	case SPRN_MMCR2:
+	case SPRN_UMMCR2:
 	case SPRN_TIR:
 #endif
 		*spr_val = 0;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/kvm/book3s_hv.c linux-libre-4.4.107-gnu/arch/powerpc/kvm/book3s_hv.c
--- linux-libre-4.4-gnu/arch/powerpc/kvm/book3s_hv.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/kvm/book3s_hv.c	2017-12-20 04:05:01.000000000 -0500
@@ -1186,6 +1186,9 @@ static int kvmppc_get_one_reg_hv(struct
 	case KVM_REG_PPC_TM_CR:
 		*val = get_reg_val(id, vcpu->arch.cr_tm);
 		break;
+	case KVM_REG_PPC_TM_XER:
+		*val = get_reg_val(id, vcpu->arch.xer_tm);
+		break;
 	case KVM_REG_PPC_TM_LR:
 		*val = get_reg_val(id, vcpu->arch.lr_tm);
 		break;
@@ -1393,6 +1396,9 @@ static int kvmppc_set_one_reg_hv(struct
 	case KVM_REG_PPC_TM_CR:
 		vcpu->arch.cr_tm = set_reg_val(id, *val);
 		break;
+	case KVM_REG_PPC_TM_XER:
+		vcpu->arch.xer_tm = set_reg_val(id, *val);
+		break;
 	case KVM_REG_PPC_TM_LR:
 		vcpu->arch.lr_tm = set_reg_val(id, *val);
 		break;
@@ -2681,12 +2687,38 @@ static int kvmppc_vcpu_run_hv(struct kvm
 {
 	int r;
 	int srcu_idx;
+	unsigned long ebb_regs[3] = {};	/* shut up GCC */
+	unsigned long user_tar = 0;
+	unsigned long proc_fscr = 0;
+	unsigned int user_vrsave;
 
 	if (!vcpu->arch.sane) {
 		run->exit_reason = KVM_EXIT_INTERNAL_ERROR;
 		return -EINVAL;
 	}
 
+	/*
+	 * Don't allow entry with a suspended transaction, because
+	 * the guest entry/exit code will lose it.
+	 * If the guest has TM enabled, save away their TM-related SPRs
+	 * (they will get restored by the TM unavailable interrupt).
+	 */
+#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
+	if (cpu_has_feature(CPU_FTR_TM) && current->thread.regs &&
+	    (current->thread.regs->msr & MSR_TM)) {
+		if (MSR_TM_ACTIVE(current->thread.regs->msr)) {
+			run->exit_reason = KVM_EXIT_FAIL_ENTRY;
+			run->fail_entry.hardware_entry_failure_reason = 0;
+			return -EINVAL;
+		}
+		/* Enable TM so we can read the TM SPRs */
+		mtmsr(mfmsr() | MSR_TM);
+		current->thread.tm_tfhar = mfspr(SPRN_TFHAR);
+		current->thread.tm_tfiar = mfspr(SPRN_TFIAR);
+		current->thread.tm_texasr = mfspr(SPRN_TEXASR);
+	}
+#endif
+
 	kvmppc_core_prepare_to_enter(vcpu);
 
 	/* No need to go into the guest when all we'll do is come back out */
@@ -2709,6 +2741,17 @@ static int kvmppc_vcpu_run_hv(struct kvm
 	flush_fp_to_thread(current);
 	flush_altivec_to_thread(current);
 	flush_vsx_to_thread(current);
+
+	/* Save userspace EBB and other register values */
+	if (cpu_has_feature(CPU_FTR_ARCH_207S)) {
+		ebb_regs[0] = mfspr(SPRN_EBBHR);
+		ebb_regs[1] = mfspr(SPRN_EBBRR);
+		ebb_regs[2] = mfspr(SPRN_BESCR);
+		user_tar = mfspr(SPRN_TAR);
+		proc_fscr = mfspr(SPRN_FSCR);
+	}
+	user_vrsave = mfspr(SPRN_VRSAVE);
+
 	vcpu->arch.wqp = &vcpu->arch.vcore->wq;
 	vcpu->arch.pgdir = current->mm->pgd;
 	vcpu->arch.state = KVMPPC_VCPU_BUSY_IN_HOST;
@@ -2730,6 +2773,29 @@ static int kvmppc_vcpu_run_hv(struct kvm
 		}
 	} while (is_kvmppc_resume_guest(r));
 
+	/* Restore userspace EBB and other register values */
+	if (cpu_has_feature(CPU_FTR_ARCH_207S)) {
+		mtspr(SPRN_EBBHR, ebb_regs[0]);
+		mtspr(SPRN_EBBRR, ebb_regs[1]);
+		mtspr(SPRN_BESCR, ebb_regs[2]);
+		mtspr(SPRN_TAR, user_tar);
+		mtspr(SPRN_FSCR, proc_fscr);
+	}
+	mtspr(SPRN_VRSAVE, user_vrsave);
+
+	/*
+	 * Since we don't do lazy TM reload, we need to reload
+	 * the TM registers here.
+	 */
+#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
+	if (cpu_has_feature(CPU_FTR_TM) && current->thread.regs &&
+	    (current->thread.regs->msr & MSR_TM)) {
+		mtspr(SPRN_TFHAR, current->thread.tm_tfhar);
+		mtspr(SPRN_TFIAR, current->thread.tm_tfiar);
+		mtspr(SPRN_TEXASR, current->thread.tm_texasr);
+	}
+#endif
+
  out:
 	vcpu->arch.state = KVMPPC_VCPU_NOTREADY;
 	atomic_dec(&vcpu->kvm->arch.vcpus_running);
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/kvm/book3s_hv_rmhandlers.S linux-libre-4.4.107-gnu/arch/powerpc/kvm/book3s_hv_rmhandlers.S
--- linux-libre-4.4-gnu/arch/powerpc/kvm/book3s_hv_rmhandlers.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/kvm/book3s_hv_rmhandlers.S	2017-12-20 04:05:01.000000000 -0500
@@ -36,6 +36,13 @@
 #define NAPPING_CEDE	1
 #define NAPPING_NOVCPU	2
 
+/* Stack frame offsets for kvmppc_hv_entry */
+#define SFS			112
+#define STACK_SLOT_TRAP		(SFS-4)
+#define STACK_SLOT_CIABR	(SFS-16)
+#define STACK_SLOT_DAWR		(SFS-24)
+#define STACK_SLOT_DAWRX	(SFS-32)
+
 /*
  * Call kvmppc_hv_entry in real mode.
  * Must be called with interrupts hard-disabled.
@@ -274,10 +281,10 @@ kvm_novcpu_exit:
 	bl	kvmhv_accumulate_time
 #endif
 13:	mr	r3, r12
-	stw	r12, 112-4(r1)
+	stw	r12, STACK_SLOT_TRAP(r1)
 	bl	kvmhv_commence_exit
 	nop
-	lwz	r12, 112-4(r1)
+	lwz	r12, STACK_SLOT_TRAP(r1)
 	b	kvmhv_switch_to_host
 
 /*
@@ -489,7 +496,7 @@ kvmppc_hv_entry:
 	 */
 	mflr	r0
 	std	r0, PPC_LR_STKOFF(r1)
-	stdu	r1, -112(r1)
+	stdu	r1, -SFS(r1)
 
 	/* Save R1 in the PACA */
 	std	r1, HSTATE_HOST_R1(r13)
@@ -643,6 +650,16 @@ kvmppc_got_guest:
 	mtspr	SPRN_PURR,r7
 	mtspr	SPRN_SPURR,r8
 
+	/* Save host values of some registers */
+BEGIN_FTR_SECTION
+	mfspr	r5, SPRN_CIABR
+	mfspr	r6, SPRN_DAWR
+	mfspr	r7, SPRN_DAWRX
+	std	r5, STACK_SLOT_CIABR(r1)
+	std	r6, STACK_SLOT_DAWR(r1)
+	std	r7, STACK_SLOT_DAWRX(r1)
+END_FTR_SECTION_IFSET(CPU_FTR_ARCH_207S)
+
 BEGIN_FTR_SECTION
 	/* Set partition DABR */
 	/* Do this before re-enabling PMU to avoid P7 DABR corruption bug */
@@ -655,112 +672,8 @@ END_FTR_SECTION_IFCLR(CPU_FTR_ARCH_207S)
 
 #ifdef CONFIG_PPC_TRANSACTIONAL_MEM
 BEGIN_FTR_SECTION
-	b	skip_tm
-END_FTR_SECTION_IFCLR(CPU_FTR_TM)
-
-	/* Turn on TM/FP/VSX/VMX so we can restore them. */
-	mfmsr	r5
-	li	r6, MSR_TM >> 32
-	sldi	r6, r6, 32
-	or	r5, r5, r6
-	ori	r5, r5, MSR_FP
-	oris	r5, r5, (MSR_VEC | MSR_VSX)@h
-	mtmsrd	r5
-
-	/*
-	 * The user may change these outside of a transaction, so they must
-	 * always be context switched.
-	 */
-	ld	r5, VCPU_TFHAR(r4)
-	ld	r6, VCPU_TFIAR(r4)
-	ld	r7, VCPU_TEXASR(r4)
-	mtspr	SPRN_TFHAR, r5
-	mtspr	SPRN_TFIAR, r6
-	mtspr	SPRN_TEXASR, r7
-
-	ld	r5, VCPU_MSR(r4)
-	rldicl. r5, r5, 64 - MSR_TS_S_LG, 62
-	beq	skip_tm	/* TM not active in guest */
-
-	/* Make sure the failure summary is set, otherwise we'll program check
-	 * when we trechkpt.  It's possible that this might have been not set
-	 * on a kvmppc_set_one_reg() call but we shouldn't let this crash the
-	 * host.
-	 */
-	oris	r7, r7, (TEXASR_FS)@h
-	mtspr	SPRN_TEXASR, r7
-
-	/*
-	 * We need to load up the checkpointed state for the guest.
-	 * We need to do this early as it will blow away any GPRs, VSRs and
-	 * some SPRs.
-	 */
-
-	mr	r31, r4
-	addi	r3, r31, VCPU_FPRS_TM
-	bl	load_fp_state
-	addi	r3, r31, VCPU_VRS_TM
-	bl	load_vr_state
-	mr	r4, r31
-	lwz	r7, VCPU_VRSAVE_TM(r4)
-	mtspr	SPRN_VRSAVE, r7
-
-	ld	r5, VCPU_LR_TM(r4)
-	lwz	r6, VCPU_CR_TM(r4)
-	ld	r7, VCPU_CTR_TM(r4)
-	ld	r8, VCPU_AMR_TM(r4)
-	ld	r9, VCPU_TAR_TM(r4)
-	mtlr	r5
-	mtcr	r6
-	mtctr	r7
-	mtspr	SPRN_AMR, r8
-	mtspr	SPRN_TAR, r9
-
-	/*
-	 * Load up PPR and DSCR values but don't put them in the actual SPRs
-	 * till the last moment to avoid running with userspace PPR and DSCR for
-	 * too long.
-	 */
-	ld	r29, VCPU_DSCR_TM(r4)
-	ld	r30, VCPU_PPR_TM(r4)
-
-	std	r2, PACATMSCRATCH(r13) /* Save TOC */
-
-	/* Clear the MSR RI since r1, r13 are all going to be foobar. */
-	li	r5, 0
-	mtmsrd	r5, 1
-
-	/* Load GPRs r0-r28 */
-	reg = 0
-	.rept	29
-	ld	reg, VCPU_GPRS_TM(reg)(r31)
-	reg = reg + 1
-	.endr
-
-	mtspr	SPRN_DSCR, r29
-	mtspr	SPRN_PPR, r30
-
-	/* Load final GPRs */
-	ld	29, VCPU_GPRS_TM(29)(r31)
-	ld	30, VCPU_GPRS_TM(30)(r31)
-	ld	31, VCPU_GPRS_TM(31)(r31)
-
-	/* TM checkpointed state is now setup.  All GPRs are now volatile. */
-	TRECHKPT
-
-	/* Now let's get back the state we need. */
-	HMT_MEDIUM
-	GET_PACA(r13)
-	ld	r29, HSTATE_DSCR(r13)
-	mtspr	SPRN_DSCR, r29
-	ld	r4, HSTATE_KVM_VCPU(r13)
-	ld	r1, HSTATE_HOST_R1(r13)
-	ld	r2, PACATMSCRATCH(r13)
-
-	/* Set the MSR RI since we have our registers back. */
-	li	r5, MSR_RI
-	mtmsrd	r5, 1
-skip_tm:
+	bl	kvmppc_restore_tm
+END_FTR_SECTION_IFSET(CPU_FTR_TM)
 #endif
 
 	/* Load guest PMU registers */
@@ -841,12 +754,6 @@ BEGIN_FTR_SECTION
 	/* Skip next section on POWER7 */
 	b	8f
 END_FTR_SECTION_IFCLR(CPU_FTR_ARCH_207S)
-	/* Turn on TM so we can access TFHAR/TFIAR/TEXASR */
-	mfmsr	r8
-	li	r0, 1
-	rldimi	r8, r0, MSR_TM_LG, 63-MSR_TM_LG
-	mtmsrd	r8
-
 	/* Load up POWER8-specific registers */
 	ld	r5, VCPU_IAMR(r4)
 	lwz	r6, VCPU_PSPB(r4)
@@ -1370,6 +1277,19 @@ END_FTR_SECTION_IFCLR(CPU_FTR_ARCH_207S)
 	std	r6, VCPU_ACOP(r9)
 	stw	r7, VCPU_GUEST_PID(r9)
 	std	r8, VCPU_WORT(r9)
+	/*
+	 * Restore various registers to 0, where non-zero values
+	 * set by the guest could disrupt the host.
+	 */
+	li	r0, 0
+	mtspr	SPRN_IAMR, r0
+	mtspr	SPRN_PSPB, r0
+	mtspr	SPRN_TCSCR, r0
+	mtspr	SPRN_WORT, r0
+	/* Set MMCRS to 1<<31 to freeze and disable the SPMC counters */
+	li	r0, 1
+	sldi	r0, r0, 31
+	mtspr	SPRN_MMCRS, r0
 8:
 
 	/* Save and reset AMR and UAMOR before turning on the MMU */
@@ -1379,6 +1299,7 @@ END_FTR_SECTION_IFCLR(CPU_FTR_ARCH_207S)
 	std	r6,VCPU_UAMOR(r9)
 	li	r6,0
 	mtspr	SPRN_AMR,r6
+	mtspr	SPRN_UAMOR, r6
 
 	/* Switch DSCR back to host value */
 	mfspr	r8, SPRN_DSCR
@@ -1422,106 +1343,8 @@ END_FTR_SECTION_IFCLR(CPU_FTR_ARCH_207S)
 
 #ifdef CONFIG_PPC_TRANSACTIONAL_MEM
 BEGIN_FTR_SECTION
-	b	2f
-END_FTR_SECTION_IFCLR(CPU_FTR_TM)
-	/* Turn on TM. */
-	mfmsr	r8
-	li	r0, 1
-	rldimi	r8, r0, MSR_TM_LG, 63-MSR_TM_LG
-	mtmsrd	r8
-
-	ld	r5, VCPU_MSR(r9)
-	rldicl. r5, r5, 64 - MSR_TS_S_LG, 62
-	beq	1f	/* TM not active in guest. */
-
-	li	r3, TM_CAUSE_KVM_RESCHED
-
-	/* Clear the MSR RI since r1, r13 are all going to be foobar. */
-	li	r5, 0
-	mtmsrd	r5, 1
-
-	/* All GPRs are volatile at this point. */
-	TRECLAIM(R3)
-
-	/* Temporarily store r13 and r9 so we have some regs to play with */
-	SET_SCRATCH0(r13)
-	GET_PACA(r13)
-	std	r9, PACATMSCRATCH(r13)
-	ld	r9, HSTATE_KVM_VCPU(r13)
-
-	/* Get a few more GPRs free. */
-	std	r29, VCPU_GPRS_TM(29)(r9)
-	std	r30, VCPU_GPRS_TM(30)(r9)
-	std	r31, VCPU_GPRS_TM(31)(r9)
-
-	/* Save away PPR and DSCR soon so don't run with user values. */
-	mfspr	r31, SPRN_PPR
-	HMT_MEDIUM
-	mfspr	r30, SPRN_DSCR
-	ld	r29, HSTATE_DSCR(r13)
-	mtspr	SPRN_DSCR, r29
-
-	/* Save all but r9, r13 & r29-r31 */
-	reg = 0
-	.rept	29
-	.if (reg != 9) && (reg != 13)
-	std	reg, VCPU_GPRS_TM(reg)(r9)
-	.endif
-	reg = reg + 1
-	.endr
-	/* ... now save r13 */
-	GET_SCRATCH0(r4)
-	std	r4, VCPU_GPRS_TM(13)(r9)
-	/* ... and save r9 */
-	ld	r4, PACATMSCRATCH(r13)
-	std	r4, VCPU_GPRS_TM(9)(r9)
-
-	/* Reload stack pointer and TOC. */
-	ld	r1, HSTATE_HOST_R1(r13)
-	ld	r2, PACATOC(r13)
-
-	/* Set MSR RI now we have r1 and r13 back. */
-	li	r5, MSR_RI
-	mtmsrd	r5, 1
-
-	/* Save away checkpinted SPRs. */
-	std	r31, VCPU_PPR_TM(r9)
-	std	r30, VCPU_DSCR_TM(r9)
-	mflr	r5
-	mfcr	r6
-	mfctr	r7
-	mfspr	r8, SPRN_AMR
-	mfspr	r10, SPRN_TAR
-	std	r5, VCPU_LR_TM(r9)
-	stw	r6, VCPU_CR_TM(r9)
-	std	r7, VCPU_CTR_TM(r9)
-	std	r8, VCPU_AMR_TM(r9)
-	std	r10, VCPU_TAR_TM(r9)
-
-	/* Restore r12 as trap number. */
-	lwz	r12, VCPU_TRAP(r9)
-
-	/* Save FP/VSX. */
-	addi	r3, r9, VCPU_FPRS_TM
-	bl	store_fp_state
-	addi	r3, r9, VCPU_VRS_TM
-	bl	store_vr_state
-	mfspr	r6, SPRN_VRSAVE
-	stw	r6, VCPU_VRSAVE_TM(r9)
-1:
-	/*
-	 * We need to save these SPRs after the treclaim so that the software
-	 * error code is recorded correctly in the TEXASR.  Also the user may
-	 * change these outside of a transaction, so they must always be
-	 * context switched.
-	 */
-	mfspr	r5, SPRN_TFHAR
-	mfspr	r6, SPRN_TFIAR
-	mfspr	r7, SPRN_TEXASR
-	std	r5, VCPU_TFHAR(r9)
-	std	r6, VCPU_TFIAR(r9)
-	std	r7, VCPU_TEXASR(r9)
-2:
+	bl	kvmppc_save_tm
+END_FTR_SECTION_IFSET(CPU_FTR_TM)
 #endif
 
 	/* Increment yield count if they have a VPA */
@@ -1618,6 +1441,16 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_207S)
 	slbia
 	ptesync
 
+	/* Restore host values of some registers */
+BEGIN_FTR_SECTION
+	ld	r5, STACK_SLOT_CIABR(r1)
+	ld	r6, STACK_SLOT_DAWR(r1)
+	ld	r7, STACK_SLOT_DAWRX(r1)
+	mtspr	SPRN_CIABR, r5
+	mtspr	SPRN_DAWR, r6
+	mtspr	SPRN_DAWRX, r7
+END_FTR_SECTION_IFSET(CPU_FTR_ARCH_207S)
+
 	/*
 	 * POWER7/POWER8 guest -> host partition switch code.
 	 * We don't have to lock against tlbies but we do
@@ -1727,8 +1560,8 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_207S)
 	li	r0, KVM_GUEST_MODE_NONE
 	stb	r0, HSTATE_IN_GUEST(r13)
 
-	ld	r0, 112+PPC_LR_STKOFF(r1)
-	addi	r1, r1, 112
+	ld	r0, SFS+PPC_LR_STKOFF(r1)
+	addi	r1, r1, SFS
 	mtlr	r0
 	blr
 
@@ -2153,7 +1986,7 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_207S)
 
 	/* Emulate H_SET_DABR/X on P8 for the sake of compat mode guests */
 2:	rlwimi	r5, r4, 5, DAWRX_DR | DAWRX_DW
-	rlwimi	r5, r4, 1, DAWRX_WT
+	rlwimi	r5, r4, 2, DAWRX_WT
 	clrrdi	r4, r4, 3
 	std	r4, VCPU_DAWR(r3)
 	std	r5, VCPU_DAWRX(r3)
@@ -2231,6 +2064,13 @@ _GLOBAL(kvmppc_h_cede)		/* r3 = vcpu poi
 	/* save FP state */
 	bl	kvmppc_save_fp
 
+#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
+BEGIN_FTR_SECTION
+	ld	r9, HSTATE_KVM_VCPU(r13)
+	bl	kvmppc_save_tm
+END_FTR_SECTION_IFSET(CPU_FTR_TM)
+#endif
+
 	/*
 	 * Set DEC to the smaller of DEC and HDEC, so that we wake
 	 * no later than the end of our timeslice (HDEC interrupts
@@ -2307,6 +2147,12 @@ kvm_end_cede:
 	bl	kvmhv_accumulate_time
 #endif
 
+#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
+BEGIN_FTR_SECTION
+	bl	kvmppc_restore_tm
+END_FTR_SECTION_IFSET(CPU_FTR_TM)
+#endif
+
 	/* load up FP state */
 	bl	kvmppc_load_fp
 
@@ -2615,6 +2461,243 @@ END_FTR_SECTION_IFSET(CPU_FTR_ALTIVEC)
 	mr	r4,r31
 	blr
 
+#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
+/*
+ * Save transactional state and TM-related registers.
+ * Called with r9 pointing to the vcpu struct.
+ * This can modify all checkpointed registers, but
+ * restores r1, r2 and r9 (vcpu pointer) before exit.
+ */
+kvmppc_save_tm:
+	mflr	r0
+	std	r0, PPC_LR_STKOFF(r1)
+
+	/* Turn on TM. */
+	mfmsr	r8
+	li	r0, 1
+	rldimi	r8, r0, MSR_TM_LG, 63-MSR_TM_LG
+	mtmsrd	r8
+
+	ld	r5, VCPU_MSR(r9)
+	rldicl. r5, r5, 64 - MSR_TS_S_LG, 62
+	beq	1f	/* TM not active in guest. */
+
+	std	r1, HSTATE_HOST_R1(r13)
+	li	r3, TM_CAUSE_KVM_RESCHED
+
+	/* Clear the MSR RI since r1, r13 are all going to be foobar. */
+	li	r5, 0
+	mtmsrd	r5, 1
+
+	/* All GPRs are volatile at this point. */
+	TRECLAIM(R3)
+
+	/* Temporarily store r13 and r9 so we have some regs to play with */
+	SET_SCRATCH0(r13)
+	GET_PACA(r13)
+	std	r9, PACATMSCRATCH(r13)
+	ld	r9, HSTATE_KVM_VCPU(r13)
+
+	/* Get a few more GPRs free. */
+	std	r29, VCPU_GPRS_TM(29)(r9)
+	std	r30, VCPU_GPRS_TM(30)(r9)
+	std	r31, VCPU_GPRS_TM(31)(r9)
+
+	/* Save away PPR and DSCR soon so don't run with user values. */
+	mfspr	r31, SPRN_PPR
+	HMT_MEDIUM
+	mfspr	r30, SPRN_DSCR
+	ld	r29, HSTATE_DSCR(r13)
+	mtspr	SPRN_DSCR, r29
+
+	/* Save all but r9, r13 & r29-r31 */
+	reg = 0
+	.rept	29
+	.if (reg != 9) && (reg != 13)
+	std	reg, VCPU_GPRS_TM(reg)(r9)
+	.endif
+	reg = reg + 1
+	.endr
+	/* ... now save r13 */
+	GET_SCRATCH0(r4)
+	std	r4, VCPU_GPRS_TM(13)(r9)
+	/* ... and save r9 */
+	ld	r4, PACATMSCRATCH(r13)
+	std	r4, VCPU_GPRS_TM(9)(r9)
+
+	/* Reload stack pointer and TOC. */
+	ld	r1, HSTATE_HOST_R1(r13)
+	ld	r2, PACATOC(r13)
+
+	/* Set MSR RI now we have r1 and r13 back. */
+	li	r5, MSR_RI
+	mtmsrd	r5, 1
+
+	/* Save away checkpinted SPRs. */
+	std	r31, VCPU_PPR_TM(r9)
+	std	r30, VCPU_DSCR_TM(r9)
+	mflr	r5
+	mfcr	r6
+	mfctr	r7
+	mfspr	r8, SPRN_AMR
+	mfspr	r10, SPRN_TAR
+	mfxer	r11
+	std	r5, VCPU_LR_TM(r9)
+	stw	r6, VCPU_CR_TM(r9)
+	std	r7, VCPU_CTR_TM(r9)
+	std	r8, VCPU_AMR_TM(r9)
+	std	r10, VCPU_TAR_TM(r9)
+	std	r11, VCPU_XER_TM(r9)
+
+	/* Restore r12 as trap number. */
+	lwz	r12, VCPU_TRAP(r9)
+
+	/* Save FP/VSX. */
+	addi	r3, r9, VCPU_FPRS_TM
+	bl	store_fp_state
+	addi	r3, r9, VCPU_VRS_TM
+	bl	store_vr_state
+	mfspr	r6, SPRN_VRSAVE
+	stw	r6, VCPU_VRSAVE_TM(r9)
+1:
+	/*
+	 * We need to save these SPRs after the treclaim so that the software
+	 * error code is recorded correctly in the TEXASR.  Also the user may
+	 * change these outside of a transaction, so they must always be
+	 * context switched.
+	 */
+	mfspr	r5, SPRN_TFHAR
+	mfspr	r6, SPRN_TFIAR
+	mfspr	r7, SPRN_TEXASR
+	std	r5, VCPU_TFHAR(r9)
+	std	r6, VCPU_TFIAR(r9)
+	std	r7, VCPU_TEXASR(r9)
+
+	ld	r0, PPC_LR_STKOFF(r1)
+	mtlr	r0
+	blr
+
+/*
+ * Restore transactional state and TM-related registers.
+ * Called with r4 pointing to the vcpu struct.
+ * This potentially modifies all checkpointed registers.
+ * It restores r1, r2, r4 from the PACA.
+ */
+kvmppc_restore_tm:
+	mflr	r0
+	std	r0, PPC_LR_STKOFF(r1)
+
+	/* Turn on TM/FP/VSX/VMX so we can restore them. */
+	mfmsr	r5
+	li	r6, MSR_TM >> 32
+	sldi	r6, r6, 32
+	or	r5, r5, r6
+	ori	r5, r5, MSR_FP
+	oris	r5, r5, (MSR_VEC | MSR_VSX)@h
+	mtmsrd	r5
+
+	/*
+	 * The user may change these outside of a transaction, so they must
+	 * always be context switched.
+	 */
+	ld	r5, VCPU_TFHAR(r4)
+	ld	r6, VCPU_TFIAR(r4)
+	ld	r7, VCPU_TEXASR(r4)
+	mtspr	SPRN_TFHAR, r5
+	mtspr	SPRN_TFIAR, r6
+	mtspr	SPRN_TEXASR, r7
+
+	ld	r5, VCPU_MSR(r4)
+	rldicl. r5, r5, 64 - MSR_TS_S_LG, 62
+	beqlr		/* TM not active in guest */
+	std	r1, HSTATE_HOST_R1(r13)
+
+	/* Make sure the failure summary is set, otherwise we'll program check
+	 * when we trechkpt.  It's possible that this might have been not set
+	 * on a kvmppc_set_one_reg() call but we shouldn't let this crash the
+	 * host.
+	 */
+	oris	r7, r7, (TEXASR_FS)@h
+	mtspr	SPRN_TEXASR, r7
+
+	/*
+	 * We need to load up the checkpointed state for the guest.
+	 * We need to do this early as it will blow away any GPRs, VSRs and
+	 * some SPRs.
+	 */
+
+	mr	r31, r4
+	addi	r3, r31, VCPU_FPRS_TM
+	bl	load_fp_state
+	addi	r3, r31, VCPU_VRS_TM
+	bl	load_vr_state
+	mr	r4, r31
+	lwz	r7, VCPU_VRSAVE_TM(r4)
+	mtspr	SPRN_VRSAVE, r7
+
+	ld	r5, VCPU_LR_TM(r4)
+	lwz	r6, VCPU_CR_TM(r4)
+	ld	r7, VCPU_CTR_TM(r4)
+	ld	r8, VCPU_AMR_TM(r4)
+	ld	r9, VCPU_TAR_TM(r4)
+	ld	r10, VCPU_XER_TM(r4)
+	mtlr	r5
+	mtcr	r6
+	mtctr	r7
+	mtspr	SPRN_AMR, r8
+	mtspr	SPRN_TAR, r9
+	mtxer	r10
+
+	/*
+	 * Load up PPR and DSCR values but don't put them in the actual SPRs
+	 * till the last moment to avoid running with userspace PPR and DSCR for
+	 * too long.
+	 */
+	ld	r29, VCPU_DSCR_TM(r4)
+	ld	r30, VCPU_PPR_TM(r4)
+
+	std	r2, PACATMSCRATCH(r13) /* Save TOC */
+
+	/* Clear the MSR RI since r1, r13 are all going to be foobar. */
+	li	r5, 0
+	mtmsrd	r5, 1
+
+	/* Load GPRs r0-r28 */
+	reg = 0
+	.rept	29
+	ld	reg, VCPU_GPRS_TM(reg)(r31)
+	reg = reg + 1
+	.endr
+
+	mtspr	SPRN_DSCR, r29
+	mtspr	SPRN_PPR, r30
+
+	/* Load final GPRs */
+	ld	29, VCPU_GPRS_TM(29)(r31)
+	ld	30, VCPU_GPRS_TM(30)(r31)
+	ld	31, VCPU_GPRS_TM(31)(r31)
+
+	/* TM checkpointed state is now setup.  All GPRs are now volatile. */
+	TRECHKPT
+
+	/* Now let's get back the state we need. */
+	HMT_MEDIUM
+	GET_PACA(r13)
+	ld	r29, HSTATE_DSCR(r13)
+	mtspr	SPRN_DSCR, r29
+	ld	r4, HSTATE_KVM_VCPU(r13)
+	ld	r1, HSTATE_HOST_R1(r13)
+	ld	r2, PACATMSCRATCH(r13)
+
+	/* Set the MSR RI since we have our registers back. */
+	li	r5, MSR_RI
+	mtmsrd	r5, 1
+
+	ld	r0, PPC_LR_STKOFF(r1)
+	mtlr	r0
+	blr
+#endif
+
 /*
  * We come here if we get any exception or interrupt while we are
  * executing host real mode code while in guest MMU context.
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/kvm/book3s_hv_rm_mmu.c linux-libre-4.4.107-gnu/arch/powerpc/kvm/book3s_hv_rm_mmu.c
--- linux-libre-4.4-gnu/arch/powerpc/kvm/book3s_hv_rm_mmu.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/kvm/book3s_hv_rm_mmu.c	2017-12-20 04:05:01.000000000 -0500
@@ -653,6 +653,8 @@ long kvmppc_h_protect(struct kvm_vcpu *v
 					      HPTE_V_ABSENT);
 			do_tlbies(kvm, &rb, 1, global_invalidates(kvm, flags),
 				  true);
+			/* Don't lose R/C bit updates done by hardware */
+			r |= be64_to_cpu(hpte[1]) & (HPTE_R_R | HPTE_R_C);
 			hpte[1] = cpu_to_be64(r);
 		}
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/kvm/book3s_hv_rm_xics.c linux-libre-4.4.107-gnu/arch/powerpc/kvm/book3s_hv_rm_xics.c
--- linux-libre-4.4-gnu/arch/powerpc/kvm/book3s_hv_rm_xics.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/kvm/book3s_hv_rm_xics.c	2017-12-20 04:05:01.000000000 -0500
@@ -280,6 +280,7 @@ static void icp_rm_deliver_irq(struct kv
 		 */
 		if (reject && reject != XICS_IPI) {
 			arch_spin_unlock(&ics->lock);
+			icp->n_reject++;
 			new_irq = reject;
 			goto again;
 		}
@@ -611,10 +612,8 @@ int kvmppc_rm_h_eoi(struct kvm_vcpu *vcp
 	state = &ics->irq_state[src];
 
 	/* Still asserted, resend it */
-	if (state->asserted) {
-		icp->n_reject++;
+	if (state->asserted)
 		icp_rm_deliver_irq(xics, icp, irq);
-	}
 
 	if (!hlist_empty(&vcpu->kvm->irq_ack_notifier_list)) {
 		icp->rm_action |= XICS_RM_NOTIFY_EOI;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/kvm/booke.c linux-libre-4.4.107-gnu/arch/powerpc/kvm/booke.c
--- linux-libre-4.4-gnu/arch/powerpc/kvm/booke.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/kvm/booke.c	2017-12-20 04:05:01.000000000 -0500
@@ -2033,7 +2033,7 @@ int kvm_arch_vcpu_ioctl_set_guest_debug(
 		if (type == KVMPPC_DEBUG_NONE)
 			continue;
 
-		if (type & !(KVMPPC_DEBUG_WATCH_READ |
+		if (type & ~(KVMPPC_DEBUG_WATCH_READ |
 			     KVMPPC_DEBUG_WATCH_WRITE |
 			     KVMPPC_DEBUG_BREAKPOINT))
 			return -EINVAL;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/kvm/emulate.c linux-libre-4.4.107-gnu/arch/powerpc/kvm/emulate.c
--- linux-libre-4.4-gnu/arch/powerpc/kvm/emulate.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/kvm/emulate.c	2017-12-20 04:05:01.000000000 -0500
@@ -302,7 +302,6 @@ int kvmppc_emulate_instruction(struct kv
 			advance = 0;
 			printk(KERN_ERR "Couldn't emulate instruction 0x%08x "
 			       "(op %d xop %d)\n", inst, get_op(inst), get_xop(inst));
-			kvmppc_core_queue_program(vcpu, 0);
 		}
 	}
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/kvm/powerpc.c linux-libre-4.4.107-gnu/arch/powerpc/kvm/powerpc.c
--- linux-libre-4.4-gnu/arch/powerpc/kvm/powerpc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/kvm/powerpc.c	2017-12-20 04:05:01.000000000 -0500
@@ -919,21 +919,17 @@ int kvm_vcpu_ioctl_get_one_reg(struct kv
 				r = -ENXIO;
 				break;
 			}
-			vcpu->arch.vr.vr[reg->id - KVM_REG_PPC_VR0] = val.vval;
+			val.vval = vcpu->arch.vr.vr[reg->id - KVM_REG_PPC_VR0];
 			break;
 		case KVM_REG_PPC_VSCR:
 			if (!cpu_has_feature(CPU_FTR_ALTIVEC)) {
 				r = -ENXIO;
 				break;
 			}
-			vcpu->arch.vr.vscr.u[3] = set_reg_val(reg->id, val);
+			val = get_reg_val(reg->id, vcpu->arch.vr.vscr.u[3]);
 			break;
 		case KVM_REG_PPC_VRSAVE:
-			if (!cpu_has_feature(CPU_FTR_ALTIVEC)) {
-				r = -ENXIO;
-				break;
-			}
-			vcpu->arch.vrsave = set_reg_val(reg->id, val);
+			val = get_reg_val(reg->id, vcpu->arch.vrsave);
 			break;
 #endif /* CONFIG_ALTIVEC */
 		default:
@@ -974,17 +970,21 @@ int kvm_vcpu_ioctl_set_one_reg(struct kv
 				r = -ENXIO;
 				break;
 			}
-			val.vval = vcpu->arch.vr.vr[reg->id - KVM_REG_PPC_VR0];
+			vcpu->arch.vr.vr[reg->id - KVM_REG_PPC_VR0] = val.vval;
 			break;
 		case KVM_REG_PPC_VSCR:
 			if (!cpu_has_feature(CPU_FTR_ALTIVEC)) {
 				r = -ENXIO;
 				break;
 			}
-			val = get_reg_val(reg->id, vcpu->arch.vr.vscr.u[3]);
+			vcpu->arch.vr.vscr.u[3] = set_reg_val(reg->id, val);
 			break;
 		case KVM_REG_PPC_VRSAVE:
-			val = get_reg_val(reg->id, vcpu->arch.vrsave);
+			if (!cpu_has_feature(CPU_FTR_ALTIVEC)) {
+				r = -ENXIO;
+				break;
+			}
+			vcpu->arch.vrsave = set_reg_val(reg->id, val);
 			break;
 #endif /* CONFIG_ALTIVEC */
 		default:
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/lib/copyuser_64.S linux-libre-4.4.107-gnu/arch/powerpc/lib/copyuser_64.S
--- linux-libre-4.4-gnu/arch/powerpc/lib/copyuser_64.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/lib/copyuser_64.S	2017-12-20 04:05:01.000000000 -0500
@@ -359,6 +359,7 @@ END_FTR_SECTION_IFCLR(CPU_FTR_UNALIGNED_
 	addi	r3,r3,8
 171:
 177:
+179:
 	addi	r3,r3,8
 370:
 372:
@@ -373,7 +374,6 @@ END_FTR_SECTION_IFCLR(CPU_FTR_UNALIGNED_
 173:
 174:
 175:
-179:
 181:
 184:
 186:
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/lib/sstep.c linux-libre-4.4.107-gnu/arch/powerpc/lib/sstep.c
--- linux-libre-4.4-gnu/arch/powerpc/lib/sstep.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/lib/sstep.c	2017-12-20 04:05:01.000000000 -0500
@@ -687,8 +687,10 @@ int __kprobes analyse_instr(struct instr
 	case 19:
 		switch ((instr >> 1) & 0x3ff) {
 		case 0:		/* mcrf */
-			rd = (instr >> 21) & 0x1c;
-			ra = (instr >> 16) & 0x1c;
+			rd = 7 - ((instr >> 23) & 0x7);
+			ra = 7 - ((instr >> 18) & 0x7);
+			rd *= 4;
+			ra *= 4;
 			val = (regs->ccr >> ra) & 0xf;
 			regs->ccr = (regs->ccr & ~(0xfUL << rd)) | (val << rd);
 			goto instr_done;
@@ -967,6 +969,19 @@ int __kprobes analyse_instr(struct instr
 #endif
 
 		case 19:	/* mfcr */
+			if ((instr >> 20) & 1) {
+				imm = 0xf0000000UL;
+				for (sh = 0; sh < 8; ++sh) {
+					if (instr & (0x80000 >> sh)) {
+						regs->gpr[rd] = regs->ccr & imm;
+						break;
+					}
+					imm >>= 4;
+				}
+
+				goto instr_done;
+			}
+
 			regs->gpr[rd] = regs->ccr;
 			regs->gpr[rd] &= 0xffffffffUL;
 			goto instr_done;
@@ -1806,8 +1821,6 @@ int __kprobes emulate_step(struct pt_reg
 		goto instr_done;
 
 	case LARX:
-		if (regs->msr & MSR_LE)
-			return 0;
 		if (op.ea & (size - 1))
 			break;		/* can't handle misaligned */
 		err = -EFAULT;
@@ -1829,8 +1842,6 @@ int __kprobes emulate_step(struct pt_reg
 		goto ldst_done;
 
 	case STCX:
-		if (regs->msr & MSR_LE)
-			return 0;
 		if (op.ea & (size - 1))
 			break;		/* can't handle misaligned */
 		err = -EFAULT;
@@ -1854,8 +1865,6 @@ int __kprobes emulate_step(struct pt_reg
 		goto ldst_done;
 
 	case LOAD:
-		if (regs->msr & MSR_LE)
-			return 0;
 		err = read_mem(&regs->gpr[op.reg], op.ea, size, regs);
 		if (!err) {
 			if (op.type & SIGNEXT)
@@ -1867,8 +1876,6 @@ int __kprobes emulate_step(struct pt_reg
 
 #ifdef CONFIG_PPC_FPU
 	case LOAD_FP:
-		if (regs->msr & MSR_LE)
-			return 0;
 		if (size == 4)
 			err = do_fp_load(op.reg, do_lfs, op.ea, size, regs);
 		else
@@ -1877,15 +1884,11 @@ int __kprobes emulate_step(struct pt_reg
 #endif
 #ifdef CONFIG_ALTIVEC
 	case LOAD_VMX:
-		if (regs->msr & MSR_LE)
-			return 0;
 		err = do_vec_load(op.reg, do_lvx, op.ea & ~0xfUL, regs);
 		goto ldst_done;
 #endif
 #ifdef CONFIG_VSX
 	case LOAD_VSX:
-		if (regs->msr & MSR_LE)
-			return 0;
 		err = do_vsx_load(op.reg, do_lxvd2x, op.ea, regs);
 		goto ldst_done;
 #endif
@@ -1908,8 +1911,6 @@ int __kprobes emulate_step(struct pt_reg
 		goto instr_done;
 
 	case STORE:
-		if (regs->msr & MSR_LE)
-			return 0;
 		if ((op.type & UPDATE) && size == sizeof(long) &&
 		    op.reg == 1 && op.update_reg == 1 &&
 		    !(regs->msr & MSR_PR) &&
@@ -1922,8 +1923,6 @@ int __kprobes emulate_step(struct pt_reg
 
 #ifdef CONFIG_PPC_FPU
 	case STORE_FP:
-		if (regs->msr & MSR_LE)
-			return 0;
 		if (size == 4)
 			err = do_fp_store(op.reg, do_stfs, op.ea, size, regs);
 		else
@@ -1932,15 +1931,11 @@ int __kprobes emulate_step(struct pt_reg
 #endif
 #ifdef CONFIG_ALTIVEC
 	case STORE_VMX:
-		if (regs->msr & MSR_LE)
-			return 0;
 		err = do_vec_store(op.reg, do_stvx, op.ea & ~0xfUL, regs);
 		goto ldst_done;
 #endif
 #ifdef CONFIG_VSX
 	case STORE_VSX:
-		if (regs->msr & MSR_LE)
-			return 0;
 		err = do_vsx_store(op.reg, do_stxvd2x, op.ea, regs);
 		goto ldst_done;
 #endif
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/mm/copro_fault.c linux-libre-4.4.107-gnu/arch/powerpc/mm/copro_fault.c
--- linux-libre-4.4-gnu/arch/powerpc/mm/copro_fault.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/mm/copro_fault.c	2017-12-20 04:05:01.000000000 -0500
@@ -106,6 +106,8 @@ int copro_calculate_slb(struct mm_struct
 	switch (REGION_ID(ea)) {
 	case USER_REGION_ID:
 		pr_devel("%s: 0x%llx -- USER_REGION_ID\n", __func__, ea);
+		if (mm == NULL)
+			return 1;
 		psize = get_slice_psize(mm, ea);
 		ssize = user_segment_size(ea);
 		vsid = get_vsid(mm->context.id, ea, ssize);
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/mm/hash_native_64.c linux-libre-4.4.107-gnu/arch/powerpc/mm/hash_native_64.c
--- linux-libre-4.4-gnu/arch/powerpc/mm/hash_native_64.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/mm/hash_native_64.c	2017-12-20 04:05:01.000000000 -0500
@@ -645,6 +645,10 @@ static void native_flush_hash_range(unsi
 	unsigned long psize = batch->psize;
 	int ssize = batch->ssize;
 	int i;
+	unsigned int use_local;
+
+	use_local = local && mmu_has_feature(MMU_FTR_TLBIEL) &&
+		mmu_psize_defs[psize].tlbiel && !cxl_ctx_in_use();
 
 	local_irq_save(flags);
 
@@ -671,8 +675,7 @@ static void native_flush_hash_range(unsi
 		} pte_iterate_hashed_end();
 	}
 
-	if (mmu_has_feature(MMU_FTR_TLBIEL) &&
-	    mmu_psize_defs[psize].tlbiel && local) {
+	if (use_local) {
 		asm volatile("ptesync":::"memory");
 		for (i = 0; i < number; i++) {
 			vpn = batch->vpn[i];
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/mm/hugetlbpage.c linux-libre-4.4.107-gnu/arch/powerpc/mm/hugetlbpage.c
--- linux-libre-4.4-gnu/arch/powerpc/mm/hugetlbpage.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/mm/hugetlbpage.c	2017-12-20 04:05:01.000000000 -0500
@@ -486,13 +486,13 @@ static void hugepd_free(struct mmu_gathe
 {
 	struct hugepd_freelist **batchp;
 
-	batchp = this_cpu_ptr(&hugepd_freelist_cur);
+	batchp = &get_cpu_var(hugepd_freelist_cur);
 
 	if (atomic_read(&tlb->mm->mm_users) < 2 ||
 	    cpumask_equal(mm_cpumask(tlb->mm),
 			  cpumask_of(smp_processor_id()))) {
 		kmem_cache_free(hugepte_cache, hugepte);
-        put_cpu_var(hugepd_freelist_cur);
+		put_cpu_var(hugepd_freelist_cur);
 		return;
 	}
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/mm/slb_low.S linux-libre-4.4.107-gnu/arch/powerpc/mm/slb_low.S
--- linux-libre-4.4-gnu/arch/powerpc/mm/slb_low.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/mm/slb_low.S	2017-12-20 04:05:01.000000000 -0500
@@ -113,7 +113,12 @@ BEGIN_FTR_SECTION
 END_MMU_FTR_SECTION_IFCLR(MMU_FTR_1T_SEGMENT)
 	b	slb_finish_load_1T
 
-0:
+0:	/*
+	 * For userspace addresses, make sure this is region 0.
+	 */
+	cmpdi	r9, 0
+	bne	8f
+
 	/* when using slices, we extract the psize off the slice bitmaps
 	 * and then we need to get the sllp encoding off the mmu_psize_defs
 	 * array.
@@ -174,6 +179,16 @@ END_MMU_FTR_SECTION_IFSET(MMU_FTR_1T_SEG
 	b	slb_finish_load
 
 8:	/* invalid EA */
+	/*
+	 * It's possible the bad EA is too large to fit in the SLB cache, which
+	 * would mean we'd fail to invalidate it on context switch. So mark the
+	 * SLB cache as full so we force a full flush. We also set cr7+eq to
+	 * mark the address as a kernel address, so slb_finish_load() skips
+	 * trying to insert it into the SLB cache.
+	 */
+	li	r9,SLB_CACHE_ENTRIES + 1
+	sth	r9,PACASLBCACHEPTR(r13)
+	crset	4*cr7+eq
 	li	r10,0			/* BAD_VSID */
 	li	r9,0			/* BAD_VSID */
 	li	r11,SLB_VSID_USER	/* flags don't much matter */
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/mm/slice.c linux-libre-4.4.107-gnu/arch/powerpc/mm/slice.c
--- linux-libre-4.4-gnu/arch/powerpc/mm/slice.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/mm/slice.c	2017-12-20 04:05:01.000000000 -0500
@@ -105,7 +105,7 @@ static int slice_area_is_free(struct mm_
 	if ((mm->task_size - len) < addr)
 		return 0;
 	vma = find_vma(mm, addr);
-	return (!vma || (addr + len) <= vma->vm_start);
+	return (!vma || (addr + len) <= vm_start_gap(vma));
 }
 
 static int slice_low_has_vma(struct mm_struct *mm, unsigned long slice)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/perf/hv-24x7.c linux-libre-4.4.107-gnu/arch/powerpc/perf/hv-24x7.c
--- linux-libre-4.4-gnu/arch/powerpc/perf/hv-24x7.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/perf/hv-24x7.c	2017-12-20 04:05:01.000000000 -0500
@@ -514,7 +514,7 @@ static int memord(const void *d1, size_t
 {
 	if (s1 < s2)
 		return 1;
-	if (s2 > s1)
+	if (s1 > s2)
 		return -1;
 
 	return memcmp(d1, d2, s1);
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/platforms/powernv/eeh-powernv.c linux-libre-4.4.107-gnu/arch/powerpc/platforms/powernv/eeh-powernv.c
--- linux-libre-4.4-gnu/arch/powerpc/platforms/powernv/eeh-powernv.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/platforms/powernv/eeh-powernv.c	2017-12-20 04:05:01.000000000 -0500
@@ -444,9 +444,12 @@ static void *pnv_eeh_probe(struct pci_dn
 	 * PCI devices of the PE are expected to be removed prior
 	 * to PE reset.
 	 */
-	if (!edev->pe->bus)
+	if (!(edev->pe->state & EEH_PE_PRI_BUS)) {
 		edev->pe->bus = pci_find_bus(hose->global_number,
 					     pdn->busno);
+		if (edev->pe->bus)
+			edev->pe->state |= EEH_PE_PRI_BUS;
+	}
 
 	/*
 	 * Enable EEH explicitly so that we will do EEH check
@@ -953,6 +956,11 @@ static int pnv_eeh_reset(struct eeh_pe *
 		}
 
 		bus = eeh_pe_bus_get(pe);
+		if (!bus) {
+			pr_err("%s: Cannot find PCI bus for PHB#%d-PE#%x\n",
+			       __func__, pe->phb->global_number, pe->addr);
+			return -EIO;
+		}
 		if (pci_is_root_bus(bus) ||
 			pci_is_root_bus(bus->parent))
 			ret = pnv_eeh_root_reset(hose, option);
@@ -1160,7 +1168,7 @@ static void pnv_eeh_get_and_dump_hub_dia
 		return;
 	}
 
-	switch (data->type) {
+	switch (be16_to_cpu(data->type)) {
 	case OPAL_P7IOC_DIAG_TYPE_RGC:
 		pr_info("P7IOC diag-data for RGC\n\n");
 		pnv_eeh_dump_hub_diag_common(data);
@@ -1392,7 +1400,7 @@ static int pnv_eeh_next_error(struct eeh
 
 				/* Try best to clear it */
 				opal_pci_eeh_freeze_clear(phb->opal_id,
-					frozen_pe_no,
+					be64_to_cpu(frozen_pe_no),
 					OPAL_EEH_ACTION_CLEAR_FREEZE_ALL);
 				ret = EEH_NEXT_ERR_NONE;
 			} else if ((*pe)->state & EEH_PE_ISOLATED ||
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/platforms/powernv/Makefile linux-libre-4.4.107-gnu/arch/powerpc/platforms/powernv/Makefile
--- linux-libre-4.4-gnu/arch/powerpc/platforms/powernv/Makefile	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/platforms/powernv/Makefile	2017-12-20 04:05:01.000000000 -0500
@@ -2,6 +2,7 @@ obj-y			+= setup.o opal-wrappers.o opal.
 obj-y			+= opal-rtc.o opal-nvram.o opal-lpc.o opal-flash.o
 obj-y			+= rng.o opal-elog.o opal-dump.o opal-sysparam.o opal-sensor.o
 obj-y			+= opal-msglog.o opal-hmi.o opal-power.o opal-irqchip.o
+obj-y			+= opal-kmsg.o
 
 obj-$(CONFIG_SMP)	+= smp.o subcore.o subcore-asm.o
 obj-$(CONFIG_PCI)	+= pci.o pci-p5ioc2.o pci-ioda.o
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/platforms/powernv/opal-async.c linux-libre-4.4.107-gnu/arch/powerpc/platforms/powernv/opal-async.c
--- linux-libre-4.4-gnu/arch/powerpc/platforms/powernv/opal-async.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/platforms/powernv/opal-async.c	2017-12-20 04:05:01.000000000 -0500
@@ -39,18 +39,18 @@ int __opal_async_get_token(void)
 	int token;
 
 	spin_lock_irqsave(&opal_async_comp_lock, flags);
-	token = find_first_bit(opal_async_complete_map, opal_max_async_tokens);
+	token = find_first_zero_bit(opal_async_token_map, opal_max_async_tokens);
 	if (token >= opal_max_async_tokens) {
 		token = -EBUSY;
 		goto out;
 	}
 
-	if (__test_and_set_bit(token, opal_async_token_map)) {
+	if (!__test_and_clear_bit(token, opal_async_complete_map)) {
 		token = -EBUSY;
 		goto out;
 	}
 
-	__clear_bit(token, opal_async_complete_map);
+	__set_bit(token, opal_async_token_map);
 
 out:
 	spin_unlock_irqrestore(&opal_async_comp_lock, flags);
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/platforms/powernv/opal.c linux-libre-4.4.107-gnu/arch/powerpc/platforms/powernv/opal.c
--- linux-libre-4.4-gnu/arch/powerpc/platforms/powernv/opal.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/platforms/powernv/opal.c	2017-12-20 04:05:01.000000000 -0500
@@ -758,6 +758,9 @@ static int __init opal_init(void)
 	opal_pdev_init(opal_node, "ibm,opal-flash");
 	opal_pdev_init(opal_node, "ibm,opal-prd");
 
+	/* Initialise OPAL kmsg dumper for flushing console on panic */
+	opal_kmsg_init();
+
 	return 0;
 }
 machine_subsys_initcall(powernv, opal_init);
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/platforms/powernv/opal-dump.c linux-libre-4.4.107-gnu/arch/powerpc/platforms/powernv/opal-dump.c
--- linux-libre-4.4-gnu/arch/powerpc/platforms/powernv/opal-dump.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/platforms/powernv/opal-dump.c	2017-12-20 04:05:01.000000000 -0500
@@ -370,6 +370,7 @@ static irqreturn_t process_dump(int irq,
 	uint32_t dump_id, dump_size, dump_type;
 	struct dump_obj *dump;
 	char name[22];
+	struct kobject *kobj;
 
 	rc = dump_read_info(&dump_id, &dump_size, &dump_type);
 	if (rc != OPAL_SUCCESS)
@@ -381,8 +382,12 @@ static irqreturn_t process_dump(int irq,
 	 * that gracefully and not create two conflicting
 	 * entries.
 	 */
-	if (kset_find_obj(dump_kset, name))
+	kobj = kset_find_obj(dump_kset, name);
+	if (kobj) {
+		/* Drop reference added by kset_find_obj() */
+		kobject_put(kobj);
 		return 0;
+	}
 
 	dump = create_dump_obj(dump_id, dump_size, dump_type);
 	if (!dump)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/platforms/powernv/opal-elog.c linux-libre-4.4.107-gnu/arch/powerpc/platforms/powernv/opal-elog.c
--- linux-libre-4.4-gnu/arch/powerpc/platforms/powernv/opal-elog.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/platforms/powernv/opal-elog.c	2017-12-20 04:05:01.000000000 -0500
@@ -247,6 +247,7 @@ static irqreturn_t elog_event(int irq, v
 	uint64_t elog_type;
 	int rc;
 	char name[2+16+1];
+	struct kobject *kobj;
 
 	rc = opal_get_elog_size(&id, &size, &type);
 	if (rc != OPAL_SUCCESS) {
@@ -269,8 +270,12 @@ static irqreturn_t elog_event(int irq, v
 	 * that gracefully and not create two conflicting
 	 * entries.
 	 */
-	if (kset_find_obj(elog_kset, name))
+	kobj = kset_find_obj(elog_kset, name);
+	if (kobj) {
+		/* Drop reference added by kset_find_obj() */
+		kobject_put(kobj);
 		return IRQ_HANDLED;
+	}
 
 	create_elog_obj(log_id, elog_size, elog_type);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/platforms/powernv/opal-kmsg.c linux-libre-4.4.107-gnu/arch/powerpc/platforms/powernv/opal-kmsg.c
--- linux-libre-4.4-gnu/arch/powerpc/platforms/powernv/opal-kmsg.c	1969-12-31 19:00:00.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/platforms/powernv/opal-kmsg.c	2017-12-20 04:05:01.000000000 -0500
@@ -0,0 +1,75 @@
+/*
+ * kmsg dumper that ensures the OPAL console fully flushes panic messages
+ *
+ * Author: Russell Currey <ruscur@russell.cc>
+ *
+ * Copyright 2015 IBM Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/kmsg_dump.h>
+
+#include <asm/opal.h>
+#include <asm/opal-api.h>
+
+/*
+ * Console output is controlled by OPAL firmware.  The kernel regularly calls
+ * OPAL_POLL_EVENTS, which flushes some console output.  In a panic state,
+ * however, the kernel no longer calls OPAL_POLL_EVENTS and the panic message
+ * may not be completely printed.  This function does not actually dump the
+ * message, it just ensures that OPAL completely flushes the console buffer.
+ */
+static void force_opal_console_flush(struct kmsg_dumper *dumper,
+				     enum kmsg_dump_reason reason)
+{
+	int i;
+	int64_t ret;
+
+	/*
+	 * Outside of a panic context the pollers will continue to run,
+	 * so we don't need to do any special flushing.
+	 */
+	if (reason != KMSG_DUMP_PANIC)
+		return;
+
+	if (opal_check_token(OPAL_CONSOLE_FLUSH)) {
+		ret = opal_console_flush(0);
+
+		if (ret == OPAL_UNSUPPORTED || ret == OPAL_PARAMETER)
+			return;
+
+		/* Incrementally flush until there's nothing left */
+		while (opal_console_flush(0) != OPAL_SUCCESS);
+	} else {
+		/*
+		 * If OPAL_CONSOLE_FLUSH is not implemented in the firmware,
+		 * the console can still be flushed by calling the polling
+		 * function enough times to flush the buffer.  We don't know
+		 * how much output still needs to be flushed, but we can be
+		 * generous since the kernel is in panic and doesn't need
+		 * to do much else.
+		 */
+		printk(KERN_NOTICE "opal: OPAL_CONSOLE_FLUSH missing.\n");
+		for (i = 0; i < 1024; i++) {
+			opal_poll_events(NULL);
+		}
+	}
+}
+
+static struct kmsg_dumper opal_kmsg_dumper = {
+	.dump = force_opal_console_flush
+};
+
+void __init opal_kmsg_init(void)
+{
+	int rc;
+
+	/* Add our dumper to the list */
+	rc = kmsg_dump_register(&opal_kmsg_dumper);
+	if (rc != 0)
+		pr_err("opal: kmsg_dump_register failed; returned %d\n", rc);
+}
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/platforms/powernv/opal-wrappers.S linux-libre-4.4.107-gnu/arch/powerpc/platforms/powernv/opal-wrappers.S
--- linux-libre-4.4-gnu/arch/powerpc/platforms/powernv/opal-wrappers.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/platforms/powernv/opal-wrappers.S	2017-12-20 04:05:01.000000000 -0500
@@ -148,7 +148,7 @@ opal_tracepoint_entry:
 opal_tracepoint_return:
 	std	r3,STK_REG(R31)(r1)
 	mr	r4,r3
-	ld	r0,STK_REG(R23)(r1)
+	ld	r3,STK_REG(R23)(r1)
 	bl	__trace_opal_exit
 	ld	r3,STK_REG(R31)(r1)
 	addi	r1,r1,STACKFRAMESIZE
@@ -301,3 +301,4 @@ OPAL_CALL(opal_flash_erase,			OPAL_FLASH
 OPAL_CALL(opal_prd_msg,				OPAL_PRD_MSG);
 OPAL_CALL(opal_leds_get_ind,			OPAL_LEDS_GET_INDICATOR);
 OPAL_CALL(opal_leds_set_ind,			OPAL_LEDS_SET_INDICATOR);
+OPAL_CALL(opal_console_flush,			OPAL_CONSOLE_FLUSH);
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/platforms/powernv/pci.c linux-libre-4.4.107-gnu/arch/powerpc/platforms/powernv/pci.c
--- linux-libre-4.4-gnu/arch/powerpc/platforms/powernv/pci.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/platforms/powernv/pci.c	2017-12-20 04:05:01.000000000 -0500
@@ -197,8 +197,8 @@ static void pnv_pci_dump_p7ioc_diag_data
 			be64_to_cpu(data->dma1ErrorLog1));
 
 	for (i = 0; i < OPAL_P7IOC_NUM_PEST_REGS; i++) {
-		if ((data->pestA[i] >> 63) == 0 &&
-		    (data->pestB[i] >> 63) == 0)
+		if ((be64_to_cpu(data->pestA[i]) >> 63) == 0 &&
+		    (be64_to_cpu(data->pestB[i]) >> 63) == 0)
 			continue;
 
 		pr_info("PE[%3d] A/B: %016llx %016llx\n",
@@ -601,6 +601,9 @@ int pnv_tce_build(struct iommu_table *tb
 	u64 rpn = __pa(uaddr) >> tbl->it_page_shift;
 	long i;
 
+	if (proto_tce & TCE_PCI_WRITE)
+		proto_tce |= TCE_PCI_READ;
+
 	for (i = 0; i < npages; i++) {
 		unsigned long newtce = proto_tce |
 			((rpn + i) << tbl->it_page_shift);
@@ -622,6 +625,9 @@ int pnv_tce_xchg(struct iommu_table *tbl
 
 	BUG_ON(*hpa & ~IOMMU_PAGE_MASK(tbl));
 
+	if (newtce & TCE_PCI_WRITE)
+		newtce |= TCE_PCI_READ;
+
 	oldtce = xchg(pnv_tce(tbl, idx), cpu_to_be64(newtce));
 	*hpa = be64_to_cpu(oldtce) & ~(TCE_PCI_READ | TCE_PCI_WRITE);
 	*direction = iommu_tce_direction(oldtce);
@@ -762,6 +768,26 @@ void pnv_pci_dma_dev_setup(struct pci_de
 		phb->dma_dev_setup(phb, pdev);
 }
 
+void pnv_pci_dma_bus_setup(struct pci_bus *bus)
+{
+	struct pci_controller *hose = bus->sysdata;
+	struct pnv_phb *phb = hose->private_data;
+	struct pnv_ioda_pe *pe;
+
+	list_for_each_entry(pe, &phb->ioda.pe_list, list) {
+		if (!(pe->flags & (PNV_IODA_PE_BUS | PNV_IODA_PE_BUS_ALL)))
+			continue;
+
+		if (!pe->pbus)
+			continue;
+
+		if (bus->number == ((pe->rid >> 8) & 0xFF)) {
+			pe->pbus = bus;
+			break;
+		}
+	}
+}
+
 void pnv_pci_shutdown(void)
 {
 	struct pci_controller *hose;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/platforms/powernv/pci.h linux-libre-4.4.107-gnu/arch/powerpc/platforms/powernv/pci.h
--- linux-libre-4.4-gnu/arch/powerpc/platforms/powernv/pci.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/platforms/powernv/pci.h	2017-12-20 04:05:01.000000000 -0500
@@ -235,6 +235,7 @@ extern void pnv_pci_reset_secondary_bus(
 extern int pnv_eeh_phb_reset(struct pci_controller *hose, int option);
 
 extern void pnv_pci_dma_dev_setup(struct pci_dev *pdev);
+extern void pnv_pci_dma_bus_setup(struct pci_bus *bus);
 extern int pnv_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type);
 extern void pnv_teardown_msi_irqs(struct pci_dev *pdev);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/platforms/powernv/pci-ioda.c linux-libre-4.4.107-gnu/arch/powerpc/platforms/powernv/pci-ioda.c
--- linux-libre-4.4-gnu/arch/powerpc/platforms/powernv/pci-ioda.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/platforms/powernv/pci-ioda.c	2017-12-20 04:05:01.000000000 -0500
@@ -2270,6 +2270,9 @@ static long pnv_pci_ioda2_table_alloc_pa
 	level_shift = entries_shift + 3;
 	level_shift = max_t(unsigned, level_shift, PAGE_SHIFT);
 
+	if ((level_shift - 3) * levels + page_shift >= 60)
+		return -EINVAL;
+
 	/* Allocate TCE table */
 	addr = pnv_pci_ioda2_table_do_alloc_pages(nid, level_shift,
 			levels, tce_table_size, &offset, &total_allocated);
@@ -3034,6 +3037,7 @@ static void pnv_pci_ioda_shutdown(struct
 
 static const struct pci_controller_ops pnv_pci_ioda_controller_ops = {
        .dma_dev_setup = pnv_pci_dma_dev_setup,
+       .dma_bus_setup = pnv_pci_dma_bus_setup,
 #ifdef CONFIG_PCI_MSI
        .setup_msi_irqs = pnv_setup_msi_irqs,
        .teardown_msi_irqs = pnv_teardown_msi_irqs,
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/platforms/powernv/setup.c linux-libre-4.4.107-gnu/arch/powerpc/platforms/powernv/setup.c
--- linux-libre-4.4-gnu/arch/powerpc/platforms/powernv/setup.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/platforms/powernv/setup.c	2017-12-20 04:05:01.000000000 -0500
@@ -295,7 +295,7 @@ static unsigned long pnv_get_proc_freq(u
 {
 	unsigned long ret_freq;
 
-	ret_freq = cpufreq_quick_get(cpu) * 1000ul;
+	ret_freq = cpufreq_get(cpu) * 1000ul;
 
 	/*
 	 * If the backend cpufreq driver does not exist,
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/platforms/pseries/dlpar.c linux-libre-4.4.107-gnu/arch/powerpc/platforms/pseries/dlpar.c
--- linux-libre-4.4-gnu/arch/powerpc/platforms/pseries/dlpar.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/platforms/pseries/dlpar.c	2017-12-20 04:05:01.000000000 -0500
@@ -280,7 +280,6 @@ int dlpar_detach_node(struct device_node
 	if (rc)
 		return rc;
 
-	of_node_put(dn); /* Must decrement the refcount */
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/platforms/pseries/eeh_pseries.c linux-libre-4.4.107-gnu/arch/powerpc/platforms/pseries/eeh_pseries.c
--- linux-libre-4.4-gnu/arch/powerpc/platforms/pseries/eeh_pseries.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/platforms/pseries/eeh_pseries.c	2017-12-20 04:05:01.000000000 -0500
@@ -615,29 +615,50 @@ static int pseries_eeh_configure_bridge(
 {
 	int config_addr;
 	int ret;
+	/* Waiting 0.2s maximum before skipping configuration */
+	int max_wait = 200;
 
 	/* Figure out the PE address */
 	config_addr = pe->config_addr;
 	if (pe->addr)
 		config_addr = pe->addr;
 
-	/* Use new configure-pe function, if supported */
-	if (ibm_configure_pe != RTAS_UNKNOWN_SERVICE) {
-		ret = rtas_call(ibm_configure_pe, 3, 1, NULL,
-				config_addr, BUID_HI(pe->phb->buid),
-				BUID_LO(pe->phb->buid));
-	} else if (ibm_configure_bridge != RTAS_UNKNOWN_SERVICE) {
-		ret = rtas_call(ibm_configure_bridge, 3, 1, NULL,
-				config_addr, BUID_HI(pe->phb->buid),
-				BUID_LO(pe->phb->buid));
-	} else {
-		return -EFAULT;
-	}
+	while (max_wait > 0) {
+		/* Use new configure-pe function, if supported */
+		if (ibm_configure_pe != RTAS_UNKNOWN_SERVICE) {
+			ret = rtas_call(ibm_configure_pe, 3, 1, NULL,
+					config_addr, BUID_HI(pe->phb->buid),
+					BUID_LO(pe->phb->buid));
+		} else if (ibm_configure_bridge != RTAS_UNKNOWN_SERVICE) {
+			ret = rtas_call(ibm_configure_bridge, 3, 1, NULL,
+					config_addr, BUID_HI(pe->phb->buid),
+					BUID_LO(pe->phb->buid));
+		} else {
+			return -EFAULT;
+		}
 
-	if (ret)
-		pr_warn("%s: Unable to configure bridge PHB#%d-PE#%x (%d)\n",
-			__func__, pe->phb->global_number, pe->addr, ret);
+		if (!ret)
+			return ret;
 
+		/*
+		 * If RTAS returns a delay value that's above 100ms, cut it
+		 * down to 100ms in case firmware made a mistake.  For more
+		 * on how these delay values work see rtas_busy_delay_time
+		 */
+		if (ret > RTAS_EXTENDED_DELAY_MIN+2 &&
+		    ret <= RTAS_EXTENDED_DELAY_MAX)
+			ret = RTAS_EXTENDED_DELAY_MIN+2;
+
+		max_wait -= rtas_busy_delay_time(ret);
+
+		if (max_wait < 0)
+			break;
+
+		rtas_busy_delay(ret);
+	}
+
+	pr_warn("%s: Unable to configure bridge PHB#%d-PE#%x (%d)\n",
+		__func__, pe->phb->global_number, pe->addr, ret);
 	return ret;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/platforms/pseries/hotplug-memory.c linux-libre-4.4.107-gnu/arch/powerpc/platforms/pseries/hotplug-memory.c
--- linux-libre-4.4-gnu/arch/powerpc/platforms/pseries/hotplug-memory.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/platforms/pseries/hotplug-memory.c	2017-12-20 04:05:01.000000000 -0500
@@ -110,6 +110,7 @@ static struct property *dlpar_clone_drco
 	for (i = 0; i < num_lmbs; i++) {
 		lmbs[i].base_addr = be64_to_cpu(lmbs[i].base_addr);
 		lmbs[i].drc_index = be32_to_cpu(lmbs[i].drc_index);
+		lmbs[i].aa_index = be32_to_cpu(lmbs[i].aa_index);
 		lmbs[i].flags = be32_to_cpu(lmbs[i].flags);
 	}
 
@@ -553,6 +554,7 @@ static void dlpar_update_drconf_property
 	for (i = 0; i < num_lmbs; i++) {
 		lmbs[i].base_addr = cpu_to_be64(lmbs[i].base_addr);
 		lmbs[i].drc_index = cpu_to_be32(lmbs[i].drc_index);
+		lmbs[i].aa_index = cpu_to_be32(lmbs[i].aa_index);
 		lmbs[i].flags = cpu_to_be32(lmbs[i].flags);
 	}
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/platforms/pseries/iommu.c linux-libre-4.4.107-gnu/arch/powerpc/platforms/pseries/iommu.c
--- linux-libre-4.4-gnu/arch/powerpc/platforms/pseries/iommu.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/platforms/pseries/iommu.c	2017-12-20 04:05:01.000000000 -0500
@@ -912,7 +912,8 @@ machine_arch_initcall(pseries, find_exis
 static int query_ddw(struct pci_dev *dev, const u32 *ddw_avail,
 			struct ddw_query_response *query)
 {
-	struct eeh_dev *edev;
+	struct device_node *dn;
+	struct pci_dn *pdn;
 	u32 cfg_addr;
 	u64 buid;
 	int ret;
@@ -923,11 +924,10 @@ static int query_ddw(struct pci_dev *dev
 	 * Retrieve them from the pci device, not the node with the
 	 * dma-window property
 	 */
-	edev = pci_dev_to_eeh_dev(dev);
-	cfg_addr = edev->config_addr;
-	if (edev->pe_config_addr)
-		cfg_addr = edev->pe_config_addr;
-	buid = edev->phb->buid;
+	dn = pci_device_to_OF_node(dev);
+	pdn = PCI_DN(dn);
+	buid = pdn->phb->buid;
+	cfg_addr = ((pdn->busno << 16) | (pdn->devfn << 8));
 
 	ret = rtas_call(ddw_avail[0], 3, 5, (u32 *)query,
 		  cfg_addr, BUID_HI(buid), BUID_LO(buid));
@@ -941,7 +941,8 @@ static int create_ddw(struct pci_dev *de
 			struct ddw_create_response *create, int page_shift,
 			int window_shift)
 {
-	struct eeh_dev *edev;
+	struct device_node *dn;
+	struct pci_dn *pdn;
 	u32 cfg_addr;
 	u64 buid;
 	int ret;
@@ -952,11 +953,10 @@ static int create_ddw(struct pci_dev *de
 	 * Retrieve them from the pci device, not the node with the
 	 * dma-window property
 	 */
-	edev = pci_dev_to_eeh_dev(dev);
-	cfg_addr = edev->config_addr;
-	if (edev->pe_config_addr)
-		cfg_addr = edev->pe_config_addr;
-	buid = edev->phb->buid;
+	dn = pci_device_to_OF_node(dev);
+	pdn = PCI_DN(dn);
+	buid = pdn->phb->buid;
+	cfg_addr = ((pdn->busno << 16) | (pdn->devfn << 8));
 
 	do {
 		/* extra outputs are LIOBN and dma-addr (hi, lo) */
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/platforms/pseries/lpar.c linux-libre-4.4.107-gnu/arch/powerpc/platforms/pseries/lpar.c
--- linux-libre-4.4-gnu/arch/powerpc/platforms/pseries/lpar.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/platforms/pseries/lpar.c	2017-12-20 04:05:01.000000000 -0500
@@ -406,7 +406,7 @@ static void __pSeries_lpar_hugepage_inva
 					     unsigned long *vpn, int count,
 					     int psize, int ssize)
 {
-	unsigned long param[8];
+	unsigned long param[PLPAR_HCALL9_BUFSIZE];
 	int i = 0, pix = 0, rc;
 	unsigned long flags = 0;
 	int lock_tlbie = !mmu_has_feature(MMU_FTR_LOCKLESS_TLBIE);
@@ -523,7 +523,7 @@ static void pSeries_lpar_flush_hash_rang
 	unsigned long flags = 0;
 	struct ppc64_tlb_batch *batch = this_cpu_ptr(&ppc64_tlb_batch);
 	int lock_tlbie = !mmu_has_feature(MMU_FTR_LOCKLESS_TLBIE);
-	unsigned long param[9];
+	unsigned long param[PLPAR_HCALL9_BUFSIZE];
 	unsigned long hash, index, shift, hidx, slot;
 	real_pte_t pte;
 	int psize, ssize;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/platforms/pseries/mobility.c linux-libre-4.4.107-gnu/arch/powerpc/platforms/pseries/mobility.c
--- linux-libre-4.4-gnu/arch/powerpc/platforms/pseries/mobility.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/platforms/pseries/mobility.c	2017-12-20 04:05:01.000000000 -0500
@@ -225,8 +225,10 @@ static int add_dt_node(__be32 parent_pha
 		return -ENOENT;
 
 	dn = dlpar_configure_connector(drc_index, parent_dn);
-	if (!dn)
+	if (!dn) {
+		of_node_put(parent_dn);
 		return -ENOENT;
+	}
 
 	rc = dlpar_attach_node(dn);
 	if (rc)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/platforms/pseries/reconfig.c linux-libre-4.4.107-gnu/arch/powerpc/platforms/pseries/reconfig.c
--- linux-libre-4.4-gnu/arch/powerpc/platforms/pseries/reconfig.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/platforms/pseries/reconfig.c	2017-12-20 04:05:01.000000000 -0500
@@ -82,7 +82,6 @@ static int pSeries_reconfig_remove_node(
 
 	of_detach_node(np);
 	of_node_put(parent);
-	of_node_put(np); /* Must decrement the refcount */
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/sysdev/axonram.c linux-libre-4.4.107-gnu/arch/powerpc/sysdev/axonram.c
--- linux-libre-4.4-gnu/arch/powerpc/sysdev/axonram.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/sysdev/axonram.c	2017-12-20 04:05:01.000000000 -0500
@@ -276,7 +276,9 @@ failed:
 			if (bank->disk->major > 0)
 				unregister_blkdev(bank->disk->major,
 						bank->disk->disk_name);
-			del_gendisk(bank->disk);
+			if (bank->disk->flags & GENHD_FL_UP)
+				del_gendisk(bank->disk);
+			put_disk(bank->disk);
 		}
 		device->dev.platform_data = NULL;
 		if (bank->io_addr != 0)
@@ -301,6 +303,7 @@ axon_ram_remove(struct platform_device *
 	device_remove_file(&device->dev, &dev_attr_ecc);
 	free_irq(bank->irq_id, device);
 	del_gendisk(bank->disk);
+	put_disk(bank->disk);
 	iounmap((void __iomem *) bank->io_addr);
 	kfree(bank);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/powerpc/sysdev/ipic.c linux-libre-4.4.107-gnu/arch/powerpc/sysdev/ipic.c
--- linux-libre-4.4-gnu/arch/powerpc/sysdev/ipic.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/powerpc/sysdev/ipic.c	2017-12-20 04:05:01.000000000 -0500
@@ -845,12 +845,12 @@ void ipic_disable_mcp(enum ipic_mcp_irq
 
 u32 ipic_get_mcp_status(void)
 {
-	return ipic_read(primary_ipic->regs, IPIC_SERMR);
+	return ipic_read(primary_ipic->regs, IPIC_SERSR);
 }
 
 void ipic_clear_mcp_status(u32 mask)
 {
-	ipic_write(primary_ipic->regs, IPIC_SERMR, mask);
+	ipic_write(primary_ipic->regs, IPIC_SERSR, mask);
 }
 
 /* Return an interrupt vector or NO_IRQ if no interrupt is pending. */
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/s390/boot/compressed/misc.c linux-libre-4.4.107-gnu/arch/s390/boot/compressed/misc.c
--- linux-libre-4.4-gnu/arch/s390/boot/compressed/misc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/s390/boot/compressed/misc.c	2017-12-20 04:05:01.000000000 -0500
@@ -141,31 +141,34 @@ static void check_ipl_parmblock(void *st
 
 unsigned long decompress_kernel(void)
 {
-	unsigned long output_addr;
-	unsigned char *output;
+	void *output, *kernel_end;
 
-	output_addr = ((unsigned long) &_end + HEAP_SIZE + 4095UL) & -4096UL;
-	check_ipl_parmblock((void *) 0, output_addr + SZ__bss_start);
-	memset(&_bss, 0, &_ebss - &_bss);
-	free_mem_ptr = (unsigned long)&_end;
-	free_mem_end_ptr = free_mem_ptr + HEAP_SIZE;
-	output = (unsigned char *) output_addr;
+	output = (void *) ALIGN((unsigned long) &_end + HEAP_SIZE, PAGE_SIZE);
+	kernel_end = output + SZ__bss_start;
+	check_ipl_parmblock((void *) 0, (unsigned long) kernel_end);
 
 #ifdef CONFIG_BLK_DEV_INITRD
 	/*
 	 * Move the initrd right behind the end of the decompressed
-	 * kernel image.
+	 * kernel image. This also prevents initrd corruption caused by
+	 * bss clearing since kernel_end will always be located behind the
+	 * current bss section..
 	 */
-	if (INITRD_START && INITRD_SIZE &&
-	    INITRD_START < (unsigned long) output + SZ__bss_start) {
-		check_ipl_parmblock(output + SZ__bss_start,
-				    INITRD_START + INITRD_SIZE);
-		memmove(output + SZ__bss_start,
-			(void *) INITRD_START, INITRD_SIZE);
-		INITRD_START = (unsigned long) output + SZ__bss_start;
+	if (INITRD_START && INITRD_SIZE && kernel_end > (void *) INITRD_START) {
+		check_ipl_parmblock(kernel_end, INITRD_SIZE);
+		memmove(kernel_end, (void *) INITRD_START, INITRD_SIZE);
+		INITRD_START = (unsigned long) kernel_end;
 	}
 #endif
 
+	/*
+	 * Clear bss section. free_mem_ptr and free_mem_end_ptr need to be
+	 * initialized afterwards since they reside in bss.
+	 */
+	memset(&_bss, 0, &_ebss - &_bss);
+	free_mem_ptr = (unsigned long) &_end;
+	free_mem_end_ptr = free_mem_ptr + HEAP_SIZE;
+
 	puts("Uncompressing Linux... ");
 	__decompress(input_data, input_len, NULL, NULL, output, 0, NULL, error);
 	puts("Ok, booting the kernel.\n");
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/s390/crypto/prng.c linux-libre-4.4.107-gnu/arch/s390/crypto/prng.c
--- linux-libre-4.4-gnu/arch/s390/crypto/prng.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/s390/crypto/prng.c	2017-12-20 04:05:01.000000000 -0500
@@ -565,8 +565,10 @@ static ssize_t prng_tdes_read(struct fil
 		prng_data->prngws.byte_counter += n;
 		prng_data->prngws.reseed_counter += n;
 
-		if (copy_to_user(ubuf, prng_data->buf, chunk))
-			return -EFAULT;
+		if (copy_to_user(ubuf, prng_data->buf, chunk)) {
+			ret = -EFAULT;
+			break;
+		}
 
 		nbytes -= chunk;
 		ret += chunk;
@@ -669,11 +671,13 @@ static const struct file_operations prng
 static struct miscdevice prng_sha512_dev = {
 	.name	= "prandom",
 	.minor	= MISC_DYNAMIC_MINOR,
+	.mode	= 0644,
 	.fops	= &prng_sha512_fops,
 };
 static struct miscdevice prng_tdes_dev = {
 	.name	= "prandom",
 	.minor	= MISC_DYNAMIC_MINOR,
+	.mode	= 0644,
 	.fops	= &prng_tdes_fops,
 };
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/s390/hypfs/hypfs_diag.c linux-libre-4.4.107-gnu/arch/s390/hypfs/hypfs_diag.c
--- linux-libre-4.4-gnu/arch/s390/hypfs/hypfs_diag.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/s390/hypfs/hypfs_diag.c	2017-12-20 04:05:01.000000000 -0500
@@ -525,11 +525,11 @@ static int diag224(void *ptr)
 static int diag224_get_name_table(void)
 {
 	/* memory must be below 2GB */
-	diag224_cpu_names = kmalloc(PAGE_SIZE, GFP_KERNEL | GFP_DMA);
+	diag224_cpu_names = (char *) __get_free_page(GFP_KERNEL | GFP_DMA);
 	if (!diag224_cpu_names)
 		return -ENOMEM;
 	if (diag224(diag224_cpu_names)) {
-		kfree(diag224_cpu_names);
+		free_page((unsigned long) diag224_cpu_names);
 		return -EOPNOTSUPP;
 	}
 	EBCASC(diag224_cpu_names + 16, (*diag224_cpu_names + 1) * 16);
@@ -538,7 +538,7 @@ static int diag224_get_name_table(void)
 
 static void diag224_delete_name_table(void)
 {
-	kfree(diag224_cpu_names);
+	free_page((unsigned long) diag224_cpu_names);
 }
 
 static int diag224_idx2name(int index, char *name)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/s390/include/asm/ctl_reg.h linux-libre-4.4.107-gnu/arch/s390/include/asm/ctl_reg.h
--- linux-libre-4.4-gnu/arch/s390/include/asm/ctl_reg.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/s390/include/asm/ctl_reg.h	2017-12-20 04:05:01.000000000 -0500
@@ -15,7 +15,9 @@
 	BUILD_BUG_ON(sizeof(addrtype) != (high - low + 1) * sizeof(long));\
 	asm volatile(							\
 		"	lctlg	%1,%2,%0\n"				\
-		: : "Q" (*(addrtype *)(&array)), "i" (low), "i" (high));\
+		:							\
+		: "Q" (*(addrtype *)(&array)), "i" (low), "i" (high)	\
+		: "memory");						\
 }
 
 #define __ctl_store(array, low, high) {					\
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/s390/include/asm/elf.h linux-libre-4.4.107-gnu/arch/s390/include/asm/elf.h
--- linux-libre-4.4-gnu/arch/s390/include/asm/elf.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/s390/include/asm/elf.h	2017-12-20 04:05:01.000000000 -0500
@@ -154,14 +154,13 @@ extern unsigned int vdso_enabled;
 #define CORE_DUMP_USE_REGSET
 #define ELF_EXEC_PAGESIZE	4096
 
-/* This is the location that an ET_DYN program is loaded if exec'ed.  Typical
-   use of this is to invoke "./ld.so someprog" to test out a new version of
-   the loader.  We need to make sure that it is out of the way of the program
-   that it will "exec", and that there is sufficient room for the brk. 64-bit
-   tasks are aligned to 4GB. */
-#define ELF_ET_DYN_BASE (is_32bit_task() ? \
-				(STACK_TOP / 3 * 2) : \
-				(STACK_TOP / 3 * 2) & ~((1UL << 32) - 1))
+/*
+ * This is the base location for PIE (ET_DYN with INTERP) loads. On
+ * 64-bit, this is raised to 4GB to leave the entire 32-bit address
+ * space open for things that want to use the area for 32-bit pointers.
+ */
+#define ELF_ET_DYN_BASE		(is_compat_task() ? 0x000400000UL : \
+						    0x100000000UL)
 
 /* This yields a mask that user programs can use to figure out what
    instruction set this CPU supports. */
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/s390/include/asm/fpu/api.h linux-libre-4.4.107-gnu/arch/s390/include/asm/fpu/api.h
--- linux-libre-4.4-gnu/arch/s390/include/asm/fpu/api.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/s390/include/asm/fpu/api.h	2017-12-20 04:05:01.000000000 -0500
@@ -22,7 +22,7 @@ static inline int test_fp_ctl(u32 fpc)
 		"	la	%0,0\n"
 		"1:\n"
 		EX_TABLE(0b,1b)
-		: "=d" (rc), "=d" (orig_fpc)
+		: "=d" (rc), "=&d" (orig_fpc)
 		: "d" (fpc), "0" (-EINVAL));
 	return rc;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/s390/include/asm/fpu/internal.h linux-libre-4.4.107-gnu/arch/s390/include/asm/fpu/internal.h
--- linux-libre-4.4-gnu/arch/s390/include/asm/fpu/internal.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/s390/include/asm/fpu/internal.h	2017-12-20 04:05:01.000000000 -0500
@@ -48,6 +48,7 @@ static inline void convert_fp_to_vx(__ve
 static inline void fpregs_store(_s390_fp_regs *fpregs, struct fpu *fpu)
 {
 	fpregs->pad = 0;
+	fpregs->fpc = fpu->fpc;
 	if (MACHINE_HAS_VX)
 		convert_vx_to_fp((freg_t *)&fpregs->fprs, fpu->vxrs);
 	else
@@ -57,6 +58,7 @@ static inline void fpregs_store(_s390_fp
 
 static inline void fpregs_load(_s390_fp_regs *fpregs, struct fpu *fpu)
 {
+	fpu->fpc = fpregs->fpc;
 	if (MACHINE_HAS_VX)
 		convert_fp_to_vx(fpu->vxrs, (freg_t *)&fpregs->fprs);
 	else
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/s390/include/asm/kvm_host.h linux-libre-4.4.107-gnu/arch/s390/include/asm/kvm_host.h
--- linux-libre-4.4-gnu/arch/s390/include/asm/kvm_host.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/s390/include/asm/kvm_host.h	2017-12-20 04:05:01.000000000 -0500
@@ -506,7 +506,6 @@ struct kvm_vcpu_arch {
 	struct kvm_s390_sie_block *sie_block;
 	unsigned int      host_acrs[NUM_ACRS];
 	struct fpu	  host_fpregs;
-	struct fpu	  guest_fpregs;
 	struct kvm_s390_local_interrupt local_int;
 	struct hrtimer    ckc_timer;
 	struct kvm_s390_pgm_info pgm;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/s390/include/asm/mmu_context.h linux-libre-4.4.107-gnu/arch/s390/include/asm/mmu_context.h
--- linux-libre-4.4-gnu/arch/s390/include/asm/mmu_context.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/s390/include/asm/mmu_context.h	2017-12-20 04:05:01.000000000 -0500
@@ -15,17 +15,41 @@
 static inline int init_new_context(struct task_struct *tsk,
 				   struct mm_struct *mm)
 {
+	spin_lock_init(&mm->context.list_lock);
+	INIT_LIST_HEAD(&mm->context.pgtable_list);
+	INIT_LIST_HEAD(&mm->context.gmap_list);
 	cpumask_clear(&mm->context.cpu_attach_mask);
 	atomic_set(&mm->context.attach_count, 0);
 	mm->context.flush_mm = 0;
-	mm->context.asce_bits = _ASCE_TABLE_LENGTH | _ASCE_USER_BITS;
-	mm->context.asce_bits |= _ASCE_TYPE_REGION3;
 #ifdef CONFIG_PGSTE
 	mm->context.alloc_pgste = page_table_allocate_pgste;
 	mm->context.has_pgste = 0;
 	mm->context.use_skey = 0;
 #endif
-	mm->context.asce_limit = STACK_TOP_MAX;
+	switch (mm->context.asce_limit) {
+	case 1UL << 42:
+		/*
+		 * forked 3-level task, fall through to set new asce with new
+		 * mm->pgd
+		 */
+	case 0:
+		/* context created by exec, set asce limit to 4TB */
+		mm->context.asce_limit = STACK_TOP_MAX;
+		mm->context.asce = __pa(mm->pgd) | _ASCE_TABLE_LENGTH |
+				   _ASCE_USER_BITS | _ASCE_TYPE_REGION3;
+		break;
+	case 1UL << 53:
+		/* forked 4-level task, set new asce with new mm->pgd */
+		mm->context.asce = __pa(mm->pgd) | _ASCE_TABLE_LENGTH |
+				   _ASCE_USER_BITS | _ASCE_TYPE_REGION2;
+		break;
+	case 1UL << 31:
+		/* forked 2-level compat task, set new asce with new mm->pgd */
+		mm->context.asce = __pa(mm->pgd) | _ASCE_TABLE_LENGTH |
+				   _ASCE_USER_BITS | _ASCE_TYPE_SEGMENT;
+		/* pgd_alloc() did not increase mm->nr_pmds */
+		mm_inc_nr_pmds(mm);
+	}
 	crst_table_init((unsigned long *) mm->pgd, pgd_entry_type(mm));
 	return 0;
 }
@@ -34,7 +58,7 @@ static inline int init_new_context(struc
 
 static inline void set_user_asce(struct mm_struct *mm)
 {
-	S390_lowcore.user_asce = mm->context.asce_bits | __pa(mm->pgd);
+	S390_lowcore.user_asce = mm->context.asce;
 	if (current->thread.mm_segment.ar4)
 		__ctl_load(S390_lowcore.user_asce, 7, 7);
 	set_cpu_flag(CIF_ASCE);
@@ -63,7 +87,7 @@ static inline void switch_mm(struct mm_s
 {
 	int cpu = smp_processor_id();
 
-	S390_lowcore.user_asce = next->context.asce_bits | __pa(next->pgd);
+	S390_lowcore.user_asce = next->context.asce;
 	if (prev == next)
 		return;
 	if (MACHINE_HAS_TLB_LC)
@@ -111,8 +135,6 @@ static inline void activate_mm(struct mm
 static inline void arch_dup_mmap(struct mm_struct *oldmm,
 				 struct mm_struct *mm)
 {
-	if (oldmm->context.asce_limit < mm->context.asce_limit)
-		crst_table_downgrade(mm, oldmm->context.asce_limit);
 }
 
 static inline void arch_exit_mmap(struct mm_struct *mm)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/s390/include/asm/mmu.h linux-libre-4.4.107-gnu/arch/s390/include/asm/mmu.h
--- linux-libre-4.4-gnu/arch/s390/include/asm/mmu.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/s390/include/asm/mmu.h	2017-12-20 04:05:01.000000000 -0500
@@ -11,7 +11,7 @@ typedef struct {
 	spinlock_t list_lock;
 	struct list_head pgtable_list;
 	struct list_head gmap_list;
-	unsigned long asce_bits;
+	unsigned long asce;
 	unsigned long asce_limit;
 	unsigned long vdso_base;
 	/* The mmu context allocates 4K page tables. */
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/s390/include/asm/pci_dma.h linux-libre-4.4.107-gnu/arch/s390/include/asm/pci_dma.h
--- linux-libre-4.4-gnu/arch/s390/include/asm/pci_dma.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/s390/include/asm/pci_dma.h	2017-12-20 04:05:01.000000000 -0500
@@ -23,6 +23,8 @@ enum zpci_ioat_dtype {
 #define ZPCI_IOTA_FS_2G			2
 #define ZPCI_KEY			(PAGE_DEFAULT_KEY << 5)
 
+#define ZPCI_TABLE_SIZE_RT	(1UL << 42)
+
 #define ZPCI_IOTA_STO_FLAG	(ZPCI_IOTA_IOT_ENABLED | ZPCI_KEY | ZPCI_IOTA_DT_ST)
 #define ZPCI_IOTA_RTTO_FLAG	(ZPCI_IOTA_IOT_ENABLED | ZPCI_KEY | ZPCI_IOTA_DT_RT)
 #define ZPCI_IOTA_RSTO_FLAG	(ZPCI_IOTA_IOT_ENABLED | ZPCI_KEY | ZPCI_IOTA_DT_RS)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/s390/include/asm/pci.h linux-libre-4.4.107-gnu/arch/s390/include/asm/pci.h
--- linux-libre-4.4-gnu/arch/s390/include/asm/pci.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/s390/include/asm/pci.h	2017-12-20 04:05:01.000000000 -0500
@@ -45,7 +45,8 @@ struct zpci_fmb {
 	u64 rpcit_ops;
 	u64 dma_rbytes;
 	u64 dma_wbytes;
-} __packed __aligned(16);
+	u64 pad[2];
+} __packed __aligned(128);
 
 enum zpci_state {
 	ZPCI_FN_STATE_RESERVED,
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/s390/include/asm/pci_insn.h linux-libre-4.4.107-gnu/arch/s390/include/asm/pci_insn.h
--- linux-libre-4.4-gnu/arch/s390/include/asm/pci_insn.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/s390/include/asm/pci_insn.h	2017-12-20 04:05:01.000000000 -0500
@@ -81,6 +81,6 @@ int zpci_refresh_trans(u64 fn, u64 addr,
 int zpci_load(u64 *data, u64 req, u64 offset);
 int zpci_store(u64 data, u64 req, u64 offset);
 int zpci_store_block(const u64 *data, u64 req, u64 offset);
-void zpci_set_irq_ctrl(u16 ctl, char *unused, u8 isc);
+int zpci_set_irq_ctrl(u16 ctl, char *unused, u8 isc);
 
 #endif
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/s390/include/asm/pgalloc.h linux-libre-4.4.107-gnu/arch/s390/include/asm/pgalloc.h
--- linux-libre-4.4-gnu/arch/s390/include/asm/pgalloc.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/s390/include/asm/pgalloc.h	2017-12-20 04:05:01.000000000 -0500
@@ -56,8 +56,8 @@ static inline unsigned long pgd_entry_ty
 	return _REGION2_ENTRY_EMPTY;
 }
 
-int crst_table_upgrade(struct mm_struct *, unsigned long limit);
-void crst_table_downgrade(struct mm_struct *, unsigned long limit);
+int crst_table_upgrade(struct mm_struct *);
+void crst_table_downgrade(struct mm_struct *);
 
 static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long address)
 {
@@ -100,12 +100,26 @@ static inline void pud_populate(struct m
 
 static inline pgd_t *pgd_alloc(struct mm_struct *mm)
 {
-	spin_lock_init(&mm->context.list_lock);
-	INIT_LIST_HEAD(&mm->context.pgtable_list);
-	INIT_LIST_HEAD(&mm->context.gmap_list);
-	return (pgd_t *) crst_table_alloc(mm);
+	unsigned long *table = crst_table_alloc(mm);
+
+	if (!table)
+		return NULL;
+	if (mm->context.asce_limit == (1UL << 31)) {
+		/* Forking a compat process with 2 page table levels */
+		if (!pgtable_pmd_page_ctor(virt_to_page(table))) {
+			crst_table_free(mm, table);
+			return NULL;
+		}
+	}
+	return (pgd_t *) table;
+}
+
+static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
+{
+	if (mm->context.asce_limit == (1UL << 31))
+		pgtable_pmd_page_dtor(virt_to_page(pgd));
+	crst_table_free(mm, (unsigned long *) pgd);
 }
-#define pgd_free(mm, pgd) crst_table_free(mm, (unsigned long *) pgd)
 
 static inline void pmd_populate(struct mm_struct *mm,
 				pmd_t *pmd, pgtable_t pte)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/s390/include/asm/pgtable.h linux-libre-4.4.107-gnu/arch/s390/include/asm/pgtable.h
--- linux-libre-4.4-gnu/arch/s390/include/asm/pgtable.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/s390/include/asm/pgtable.h	2017-12-20 04:05:01.000000000 -0500
@@ -829,6 +829,8 @@ static inline void set_pte_at(struct mm_
 {
 	pgste_t pgste;
 
+	if (pte_present(entry))
+		pte_val(entry) &= ~_PAGE_UNUSED;
 	if (mm_has_pgste(mm)) {
 		pgste = pgste_get_lock(ptep);
 		pgste_val(pgste) &= ~_PGSTE_GPS_ZERO;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/s390/include/asm/processor.h linux-libre-4.4.107-gnu/arch/s390/include/asm/processor.h
--- linux-libre-4.4-gnu/arch/s390/include/asm/processor.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/s390/include/asm/processor.h	2017-12-20 04:05:01.000000000 -0500
@@ -74,7 +74,8 @@ extern void execve_tail(void);
  * User space process size: 2GB for 31 bit, 4TB or 8PT for 64 bit.
  */
 
-#define TASK_SIZE_OF(tsk)	((tsk)->mm->context.asce_limit)
+#define TASK_SIZE_OF(tsk)	((tsk)->mm ? \
+				 (tsk)->mm->context.asce_limit : TASK_MAX_SIZE)
 #define TASK_UNMAPPED_BASE	(test_thread_flag(TIF_31BIT) ? \
 					(1UL << 30) : (1UL << 41))
 #define TASK_SIZE		TASK_SIZE_OF(current)
@@ -163,7 +164,7 @@ extern __vector128 init_task_fpu_regs[__
 	regs->psw.mask	= PSW_USER_BITS | PSW_MASK_BA;			\
 	regs->psw.addr	= new_psw | PSW_ADDR_AMODE;			\
 	regs->gprs[15]	= new_stackp;					\
-	crst_table_downgrade(current->mm, 1UL << 31);			\
+	crst_table_downgrade(current->mm);				\
 	execve_tail();							\
 } while (0)
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/s390/include/asm/runtime_instr.h linux-libre-4.4.107-gnu/arch/s390/include/asm/runtime_instr.h
--- linux-libre-4.4-gnu/arch/s390/include/asm/runtime_instr.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/s390/include/asm/runtime_instr.h	2017-12-20 04:05:01.000000000 -0500
@@ -85,6 +85,8 @@ static inline void restore_ri_cb(struct
 		load_runtime_instr_cb(&runtime_instr_empty_cb);
 }
 
-void exit_thread_runtime_instr(void);
+struct task_struct;
+
+void runtime_instr_release(struct task_struct *tsk);
 
 #endif /* _RUNTIME_INSTR_H */
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/s390/include/asm/switch_to.h linux-libre-4.4.107-gnu/arch/s390/include/asm/switch_to.h
--- linux-libre-4.4-gnu/arch/s390/include/asm/switch_to.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/s390/include/asm/switch_to.h	2017-12-20 04:05:01.000000000 -0500
@@ -29,17 +29,16 @@ static inline void restore_access_regs(u
 }
 
 #define switch_to(prev,next,last) do {					\
-	if (prev->mm) {							\
-		save_fpu_regs();					\
-		save_access_regs(&prev->thread.acrs[0]);		\
-		save_ri_cb(prev->thread.ri_cb);				\
-	}								\
-	if (next->mm) {							\
-		update_cr_regs(next);					\
-		set_cpu_flag(CIF_FPU);					\
-		restore_access_regs(&next->thread.acrs[0]);		\
-		restore_ri_cb(next->thread.ri_cb, prev->thread.ri_cb);	\
-	}								\
+	/* save_fpu_regs() sets the CIF_FPU flag, which enforces	\
+	 * a restore of the floating point / vector registers as	\
+	 * soon as the next task returns to user space			\
+	 */								\
+	save_fpu_regs();						\
+	save_access_regs(&prev->thread.acrs[0]);			\
+	save_ri_cb(prev->thread.ri_cb);					\
+	update_cr_regs(next);						\
+	restore_access_regs(&next->thread.acrs[0]);			\
+	restore_ri_cb(next->thread.ri_cb, prev->thread.ri_cb);		\
 	prev = __switch_to(prev,next);					\
 } while (0)
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/s390/include/asm/syscall.h linux-libre-4.4.107-gnu/arch/s390/include/asm/syscall.h
--- linux-libre-4.4-gnu/arch/s390/include/asm/syscall.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/s390/include/asm/syscall.h	2017-12-20 04:05:01.000000000 -0500
@@ -64,6 +64,12 @@ static inline void syscall_get_arguments
 {
 	unsigned long mask = -1UL;
 
+	/*
+	 * No arguments for this syscall, there's nothing to do.
+	 */
+	if (!n)
+		return;
+
 	BUG_ON(i + n > 6);
 #ifdef CONFIG_COMPAT
 	if (test_tsk_thread_flag(task, TIF_31BIT))
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/s390/include/asm/tlbflush.h linux-libre-4.4.107-gnu/arch/s390/include/asm/tlbflush.h
--- linux-libre-4.4-gnu/arch/s390/include/asm/tlbflush.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/s390/include/asm/tlbflush.h	2017-12-20 04:05:01.000000000 -0500
@@ -81,7 +81,8 @@ static inline void __tlb_flush_full(stru
 }
 
 /*
- * Flush TLB entries for a specific ASCE on all CPUs.
+ * Flush TLB entries for a specific ASCE on all CPUs. Should never be used
+ * when more than one asce (e.g. gmap) ran on this mm.
  */
 static inline void __tlb_flush_asce(struct mm_struct *mm, unsigned long asce)
 {
@@ -110,8 +111,7 @@ static inline void __tlb_flush_asce(stru
 static inline void __tlb_flush_kernel(void)
 {
 	if (MACHINE_HAS_IDTE)
-		__tlb_flush_idte((unsigned long) init_mm.pgd |
-				 init_mm.context.asce_bits);
+		__tlb_flush_idte(init_mm.context.asce);
 	else
 		__tlb_flush_global();
 }
@@ -133,8 +133,7 @@ static inline void __tlb_flush_asce(stru
 static inline void __tlb_flush_kernel(void)
 {
 	if (MACHINE_HAS_TLB_LC)
-		__tlb_flush_idte_local((unsigned long) init_mm.pgd |
-				       init_mm.context.asce_bits);
+		__tlb_flush_idte_local(init_mm.context.asce);
 	else
 		__tlb_flush_local();
 }
@@ -148,8 +147,7 @@ static inline void __tlb_flush_mm(struct
 	 * only ran on the local cpu.
 	 */
 	if (MACHINE_HAS_IDTE && list_empty(&mm->context.gmap_list))
-		__tlb_flush_asce(mm, (unsigned long) mm->pgd |
-				 mm->context.asce_bits);
+		__tlb_flush_asce(mm, mm->context.asce);
 	else
 		__tlb_flush_full(mm);
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/s390/include/asm/uaccess.h linux-libre-4.4.107-gnu/arch/s390/include/asm/uaccess.h
--- linux-libre-4.4-gnu/arch/s390/include/asm/uaccess.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/s390/include/asm/uaccess.h	2017-12-20 04:05:01.000000000 -0500
@@ -150,7 +150,7 @@ unsigned long __must_check __copy_to_use
 		"	jg	2b\n"				\
 		".popsection\n"					\
 		EX_TABLE(0b,3b) EX_TABLE(1b,3b)			\
-		: "=d" (__rc), "=Q" (*(to))			\
+		: "=d" (__rc), "+Q" (*(to))			\
 		: "d" (size), "Q" (*(from)),			\
 		  "d" (__reg0), "K" (-EFAULT)			\
 		: "cc");					\
@@ -215,28 +215,28 @@ int __put_user_bad(void) __attribute__((
 	__chk_user_ptr(ptr);					\
 	switch (sizeof(*(ptr))) {				\
 	case 1: {						\
-		unsigned char __x;				\
+		unsigned char __x = 0;				\
 		__gu_err = __get_user_fn(&__x, ptr,		\
 					 sizeof(*(ptr)));	\
 		(x) = *(__force __typeof__(*(ptr)) *) &__x;	\
 		break;						\
 	};							\
 	case 2: {						\
-		unsigned short __x;				\
+		unsigned short __x = 0;				\
 		__gu_err = __get_user_fn(&__x, ptr,		\
 					 sizeof(*(ptr)));	\
 		(x) = *(__force __typeof__(*(ptr)) *) &__x;	\
 		break;						\
 	};							\
 	case 4: {						\
-		unsigned int __x;				\
+		unsigned int __x = 0;				\
 		__gu_err = __get_user_fn(&__x, ptr,		\
 					 sizeof(*(ptr)));	\
 		(x) = *(__force __typeof__(*(ptr)) *) &__x;	\
 		break;						\
 	};							\
 	case 8: {						\
-		unsigned long long __x;				\
+		unsigned long long __x = 0;			\
 		__gu_err = __get_user_fn(&__x, ptr,		\
 					 sizeof(*(ptr)));	\
 		(x) = *(__force __typeof__(*(ptr)) *) &__x;	\
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/s390/Kconfig linux-libre-4.4.107-gnu/arch/s390/Kconfig
--- linux-libre-4.4-gnu/arch/s390/Kconfig	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/s390/Kconfig	2017-12-20 04:05:01.000000000 -0500
@@ -346,9 +346,6 @@ config COMPAT
 config SYSVIPC_COMPAT
 	def_bool y if COMPAT && SYSVIPC
 
-config KEYS_COMPAT
-	def_bool y if COMPAT && KEYS
-
 config SMP
 	def_bool y
 	prompt "Symmetric multi-processing support"
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/s390/kernel/asm-offsets.c linux-libre-4.4.107-gnu/arch/s390/kernel/asm-offsets.c
--- linux-libre-4.4-gnu/arch/s390/kernel/asm-offsets.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/s390/kernel/asm-offsets.c	2017-12-20 04:05:01.000000000 -0500
@@ -181,6 +181,7 @@ int main(void)
 	OFFSET(__LC_PSW_SAVE_AREA, _lowcore, psw_save_area);
 	OFFSET(__LC_PREFIX_SAVE_AREA, _lowcore, prefixreg_save_area);
 	OFFSET(__LC_FP_CREG_SAVE_AREA, _lowcore, fpt_creg_save_area);
+	OFFSET(__LC_TOD_PROGREG_SAVE_AREA, _lowcore, tod_progreg_save_area);
 	OFFSET(__LC_CPU_TIMER_SAVE_AREA, _lowcore, cpu_timer_save_area);
 	OFFSET(__LC_CLOCK_COMP_SAVE_AREA, _lowcore, clock_comp_save_area);
 	OFFSET(__LC_AREGS_SAVE_AREA, _lowcore, access_regs_save_area);
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/s390/kernel/compat_signal.c linux-libre-4.4.107-gnu/arch/s390/kernel/compat_signal.c
--- linux-libre-4.4-gnu/arch/s390/kernel/compat_signal.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/s390/kernel/compat_signal.c	2017-12-20 04:05:01.000000000 -0500
@@ -271,7 +271,7 @@ static int restore_sigregs_ext32(struct
 
 	/* Restore high gprs from signal stack */
 	if (__copy_from_user(&gprs_high, &sregs_ext->gprs_high,
-			     sizeof(&sregs_ext->gprs_high)))
+			     sizeof(sregs_ext->gprs_high)))
 		return -EFAULT;
 	for (i = 0; i < NUM_GPRS; i++)
 		*(__u32 *)&regs->gprs[i] = gprs_high[i];
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/s390/kernel/crash_dump.c linux-libre-4.4.107-gnu/arch/s390/kernel/crash_dump.c
--- linux-libre-4.4-gnu/arch/s390/kernel/crash_dump.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/s390/kernel/crash_dump.c	2017-12-20 04:05:01.000000000 -0500
@@ -23,6 +23,8 @@
 #define PTR_SUB(x, y) (((char *) (x)) - ((unsigned long) (y)))
 #define PTR_DIFF(x, y) ((unsigned long)(((char *) (x)) - ((unsigned long) (y))))
 
+#define LINUX_NOTE_NAME "LINUX"
+
 static struct memblock_region oldmem_region;
 
 static struct memblock_type oldmem_type = {
@@ -312,7 +314,7 @@ static void *nt_fpregset(void *ptr, stru
 static void *nt_s390_timer(void *ptr, struct save_area *sa)
 {
 	return nt_init(ptr, NT_S390_TIMER, &sa->timer, sizeof(sa->timer),
-			 KEXEC_CORE_NOTE_NAME);
+			 LINUX_NOTE_NAME);
 }
 
 /*
@@ -321,7 +323,7 @@ static void *nt_s390_timer(void *ptr, st
 static void *nt_s390_tod_cmp(void *ptr, struct save_area *sa)
 {
 	return nt_init(ptr, NT_S390_TODCMP, &sa->clk_cmp,
-		       sizeof(sa->clk_cmp), KEXEC_CORE_NOTE_NAME);
+		       sizeof(sa->clk_cmp), LINUX_NOTE_NAME);
 }
 
 /*
@@ -330,7 +332,7 @@ static void *nt_s390_tod_cmp(void *ptr,
 static void *nt_s390_tod_preg(void *ptr, struct save_area *sa)
 {
 	return nt_init(ptr, NT_S390_TODPREG, &sa->tod_reg,
-		       sizeof(sa->tod_reg), KEXEC_CORE_NOTE_NAME);
+		       sizeof(sa->tod_reg), LINUX_NOTE_NAME);
 }
 
 /*
@@ -339,7 +341,7 @@ static void *nt_s390_tod_preg(void *ptr,
 static void *nt_s390_ctrs(void *ptr, struct save_area *sa)
 {
 	return nt_init(ptr, NT_S390_CTRS, &sa->ctrl_regs,
-		       sizeof(sa->ctrl_regs), KEXEC_CORE_NOTE_NAME);
+		       sizeof(sa->ctrl_regs), LINUX_NOTE_NAME);
 }
 
 /*
@@ -348,7 +350,7 @@ static void *nt_s390_ctrs(void *ptr, str
 static void *nt_s390_prefix(void *ptr, struct save_area *sa)
 {
 	return nt_init(ptr, NT_S390_PREFIX, &sa->pref_reg,
-			 sizeof(sa->pref_reg), KEXEC_CORE_NOTE_NAME);
+			 sizeof(sa->pref_reg), LINUX_NOTE_NAME);
 }
 
 /*
@@ -357,7 +359,7 @@ static void *nt_s390_prefix(void *ptr, s
 static void *nt_s390_vx_high(void *ptr, __vector128 *vx_regs)
 {
 	return nt_init(ptr, NT_S390_VXRS_HIGH, &vx_regs[16],
-		       16 * sizeof(__vector128), KEXEC_CORE_NOTE_NAME);
+		       16 * sizeof(__vector128), LINUX_NOTE_NAME);
 }
 
 /*
@@ -370,12 +372,12 @@ static void *nt_s390_vx_low(void *ptr, _
 	int i;
 
 	note = (Elf64_Nhdr *)ptr;
-	note->n_namesz = strlen(KEXEC_CORE_NOTE_NAME) + 1;
+	note->n_namesz = strlen(LINUX_NOTE_NAME) + 1;
 	note->n_descsz = 16 * 8;
 	note->n_type = NT_S390_VXRS_LOW;
 	len = sizeof(Elf64_Nhdr);
 
-	memcpy(ptr + len, KEXEC_CORE_NOTE_NAME, note->n_namesz);
+	memcpy(ptr + len, LINUX_NOTE_NAME, note->n_namesz);
 	len = roundup(len + note->n_namesz, 4);
 
 	ptr += len;
@@ -462,6 +464,20 @@ static void *nt_vmcoreinfo(void *ptr)
 }
 
 /*
+ * Initialize final note (needed for /proc/vmcore code)
+ */
+static void *nt_final(void *ptr)
+{
+	Elf64_Nhdr *note;
+
+	note = (Elf64_Nhdr *) ptr;
+	note->n_namesz = 0;
+	note->n_descsz = 0;
+	note->n_type = 0;
+	return PTR_ADD(ptr, sizeof(Elf64_Nhdr));
+}
+
+/*
  * Initialize ELF header (new kernel)
  */
 static void *ehdr_init(Elf64_Ehdr *ehdr, int mem_chunk_cnt)
@@ -551,6 +567,7 @@ static void *notes_init(Elf64_Phdr *phdr
 		ptr = fill_cpu_elf_notes(ptr, &sa_ext->sa, sa_ext->vx_regs);
 	}
 	ptr = nt_vmcoreinfo(ptr);
+	ptr = nt_final(ptr);
 	memset(phdr, 0, sizeof(*phdr));
 	phdr->p_type = PT_NOTE;
 	phdr->p_offset = notes_offset;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/s390/kernel/dis.c linux-libre-4.4.107-gnu/arch/s390/kernel/dis.c
--- linux-libre-4.4-gnu/arch/s390/kernel/dis.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/s390/kernel/dis.c	2017-12-20 04:05:01.000000000 -0500
@@ -1549,6 +1549,7 @@ static struct s390_insn opcode_e7[] = {
 	{ "vfsq", 0xce, INSTR_VRR_VV000MM },
 	{ "vfs", 0xe2, INSTR_VRR_VVV00MM },
 	{ "vftci", 0x4a, INSTR_VRI_VVIMM },
+	{ "", 0, INSTR_INVALID }
 };
 
 static struct s390_insn opcode_eb[] = {
@@ -1961,7 +1962,7 @@ void show_code(struct pt_regs *regs)
 {
 	char *mode = user_mode(regs) ? "User" : "Krnl";
 	unsigned char code[64];
-	char buffer[64], *ptr;
+	char buffer[128], *ptr;
 	mm_segment_t old_fs;
 	unsigned long addr;
 	int start, end, opsize, hops, i;
@@ -2024,7 +2025,7 @@ void show_code(struct pt_regs *regs)
 		start += opsize;
 		printk(buffer);
 		ptr = buffer;
-		ptr += sprintf(ptr, "\n          ");
+		ptr += sprintf(ptr, "\n\t  ");
 		hops++;
 	}
 	printk("\n");
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/s390/kernel/early.c linux-libre-4.4.107-gnu/arch/s390/kernel/early.c
--- linux-libre-4.4-gnu/arch/s390/kernel/early.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/s390/kernel/early.c	2017-12-20 04:05:01.000000000 -0500
@@ -325,8 +325,10 @@ static __init void detect_machine_facili
 		S390_lowcore.machine_flags |= MACHINE_FLAG_IDTE;
 	if (test_facility(40))
 		S390_lowcore.machine_flags |= MACHINE_FLAG_LPP;
-	if (test_facility(50) && test_facility(73))
+	if (test_facility(50) && test_facility(73)) {
 		S390_lowcore.machine_flags |= MACHINE_FLAG_TE;
+		__ctl_set_bit(0, 55);
+	}
 	if (test_facility(51))
 		S390_lowcore.machine_flags |= MACHINE_FLAG_TLB_LC;
 	if (test_facility(129)) {
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/s390/kernel/entry.S linux-libre-4.4.107-gnu/arch/s390/kernel/entry.S
--- linux-libre-4.4-gnu/arch/s390/kernel/entry.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/s390/kernel/entry.S	2017-12-20 04:05:01.000000000 -0500
@@ -229,12 +229,17 @@ ENTRY(sie64a)
 	lctlg	%c1,%c1,__LC_USER_ASCE		# load primary asce
 .Lsie_done:
 # some program checks are suppressing. C code (e.g. do_protection_exception)
-# will rewind the PSW by the ILC, which is 4 bytes in case of SIE. Other
-# instructions between sie64a and .Lsie_done should not cause program
-# interrupts. So lets use a nop (47 00 00 00) as a landing pad.
+# will rewind the PSW by the ILC, which is often 4 bytes in case of SIE. There
+# are some corner cases (e.g. runtime instrumentation) where ILC is unpredictable.
+# Other instructions between sie64a and .Lsie_done should not cause program
+# interrupts. So lets use 3 nops as a landing pad for all possible rewinds.
 # See also .Lcleanup_sie
-.Lrewind_pad:
-	nop	0
+.Lrewind_pad6:
+	nopr	7
+.Lrewind_pad4:
+	nopr	7
+.Lrewind_pad2:
+	nopr	7
 	.globl sie_exit
 sie_exit:
 	lg	%r14,__SF_EMPTY+8(%r15)		# load guest register save area
@@ -247,7 +252,9 @@ sie_exit:
 	stg	%r14,__SF_EMPTY+16(%r15)	# set exit reason code
 	j	sie_exit
 
-	EX_TABLE(.Lrewind_pad,.Lsie_fault)
+	EX_TABLE(.Lrewind_pad6,.Lsie_fault)
+	EX_TABLE(.Lrewind_pad4,.Lsie_fault)
+	EX_TABLE(.Lrewind_pad2,.Lsie_fault)
 	EX_TABLE(sie_exit,.Lsie_fault)
 #endif
 
@@ -308,6 +315,7 @@ ENTRY(system_call)
 	lg	%r14,__LC_VDSO_PER_CPU
 	lmg	%r0,%r10,__PT_R0(%r11)
 	mvc	__LC_RETURN_PSW(16),__PT_PSW(%r11)
+.Lsysc_exit_timer:
 	stpt	__LC_EXIT_TIMER
 	mvc	__VDSO_ECTG_BASE(16,%r14),__LC_EXIT_TIMER
 	lmg	%r11,%r15,__PT_R11(%r11)
@@ -593,6 +601,7 @@ ENTRY(io_int_handler)
 	lg	%r14,__LC_VDSO_PER_CPU
 	lmg	%r0,%r10,__PT_R0(%r11)
 	mvc	__LC_RETURN_PSW(16),__PT_PSW(%r11)
+.Lio_exit_timer:
 	stpt	__LC_EXIT_TIMER
 	mvc	__VDSO_ECTG_BASE(16,%r14),__LC_EXIT_TIMER
 	lmg	%r11,%r15,__PT_R11(%r11)
@@ -1118,15 +1127,23 @@ cleanup_critical:
 	br	%r14
 
 .Lcleanup_sysc_restore:
+	# check if stpt has been executed
 	clg	%r9,BASED(.Lcleanup_sysc_restore_insn)
+	jh	0f
+	mvc	__LC_EXIT_TIMER(8),__LC_ASYNC_ENTER_TIMER
+	cghi	%r11,__LC_SAVE_AREA_ASYNC
 	je	0f
+	mvc	__LC_EXIT_TIMER(8),__LC_MCCK_ENTER_TIMER
+0:	clg	%r9,BASED(.Lcleanup_sysc_restore_insn+8)
+	je	1f
 	lg	%r9,24(%r11)		# get saved pointer to pt_regs
 	mvc	__LC_RETURN_PSW(16),__PT_PSW(%r9)
 	mvc	0(64,%r11),__PT_R8(%r9)
 	lmg	%r0,%r7,__PT_R0(%r9)
-0:	lmg	%r8,%r9,__LC_RETURN_PSW
+1:	lmg	%r8,%r9,__LC_RETURN_PSW
 	br	%r14
 .Lcleanup_sysc_restore_insn:
+	.quad	.Lsysc_exit_timer
 	.quad	.Lsysc_done - 4
 
 .Lcleanup_io_tif:
@@ -1134,15 +1151,20 @@ cleanup_critical:
 	br	%r14
 
 .Lcleanup_io_restore:
+	# check if stpt has been executed
 	clg	%r9,BASED(.Lcleanup_io_restore_insn)
-	je	0f
+	jh	0f
+	mvc	__LC_EXIT_TIMER(8),__LC_MCCK_ENTER_TIMER
+0:	clg	%r9,BASED(.Lcleanup_io_restore_insn+8)
+	je	1f
 	lg	%r9,24(%r11)		# get saved r11 pointer to pt_regs
 	mvc	__LC_RETURN_PSW(16),__PT_PSW(%r9)
 	mvc	0(64,%r11),__PT_R8(%r9)
 	lmg	%r0,%r7,__PT_R0(%r9)
-0:	lmg	%r8,%r9,__LC_RETURN_PSW
+1:	lmg	%r8,%r9,__LC_RETURN_PSW
 	br	%r14
 .Lcleanup_io_restore_insn:
+	.quad	.Lio_exit_timer
 	.quad	.Lio_done - 4
 
 .Lcleanup_idle:
@@ -1197,114 +1219,12 @@ cleanup_critical:
 	.quad	.Lpsw_idle_lpsw
 
 .Lcleanup_save_fpu_regs:
-	TSTMSK	__LC_CPU_FLAGS,_CIF_FPU
-	bor	%r14
-	clg	%r9,BASED(.Lcleanup_save_fpu_regs_done)
-	jhe	5f
-	clg	%r9,BASED(.Lcleanup_save_fpu_regs_fp)
-	jhe	4f
-	clg	%r9,BASED(.Lcleanup_save_fpu_regs_vx_high)
-	jhe	3f
-	clg	%r9,BASED(.Lcleanup_save_fpu_regs_vx_low)
-	jhe	2f
-	clg	%r9,BASED(.Lcleanup_save_fpu_fpc_end)
-	jhe	1f
-	lg	%r2,__LC_CURRENT
-	aghi	%r2,__TASK_thread
-0:	# Store floating-point controls
-	stfpc	__THREAD_FPU_fpc(%r2)
-1:	# Load register save area and check if VX is active
-	lg	%r3,__THREAD_FPU_regs(%r2)
-	TSTMSK	__LC_MACHINE_FLAGS,MACHINE_FLAG_VX
-	jz	4f			  # no VX -> store FP regs
-2:	# Store vector registers (V0-V15)
-	VSTM	%v0,%v15,0,%r3		  # vstm 0,15,0(3)
-3:	# Store vector registers (V16-V31)
-	VSTM	%v16,%v31,256,%r3	  # vstm 16,31,256(3)
-	j	5f			  # -> done, set CIF_FPU flag
-4:	# Store floating-point registers
-	std	0,0(%r3)
-	std	1,8(%r3)
-	std	2,16(%r3)
-	std	3,24(%r3)
-	std	4,32(%r3)
-	std	5,40(%r3)
-	std	6,48(%r3)
-	std	7,56(%r3)
-	std	8,64(%r3)
-	std	9,72(%r3)
-	std	10,80(%r3)
-	std	11,88(%r3)
-	std	12,96(%r3)
-	std	13,104(%r3)
-	std	14,112(%r3)
-	std	15,120(%r3)
-5:	# Set CIF_FPU flag
-	oi	__LC_CPU_FLAGS+7,_CIF_FPU
-	lg	%r9,48(%r11)		# return from save_fpu_regs
+	larl	%r9,save_fpu_regs
 	br	%r14
-.Lcleanup_save_fpu_fpc_end:
-	.quad	.Lsave_fpu_regs_fpc_end
-.Lcleanup_save_fpu_regs_vx_low:
-	.quad	.Lsave_fpu_regs_vx_low
-.Lcleanup_save_fpu_regs_vx_high:
-	.quad	.Lsave_fpu_regs_vx_high
-.Lcleanup_save_fpu_regs_fp:
-	.quad	.Lsave_fpu_regs_fp
-.Lcleanup_save_fpu_regs_done:
-	.quad	.Lsave_fpu_regs_done
 
 .Lcleanup_load_fpu_regs:
-	TSTMSK	__LC_CPU_FLAGS,_CIF_FPU
-	bnor	%r14
-	clg	%r9,BASED(.Lcleanup_load_fpu_regs_done)
-	jhe	1f
-	clg	%r9,BASED(.Lcleanup_load_fpu_regs_fp)
-	jhe	2f
-	clg	%r9,BASED(.Lcleanup_load_fpu_regs_vx_high)
-	jhe	3f
-	clg	%r9,BASED(.Lcleanup_load_fpu_regs_vx)
-	jhe	4f
-	lg	%r4,__LC_CURRENT
-	aghi	%r4,__TASK_thread
-	lfpc	__THREAD_FPU_fpc(%r4)
-	TSTMSK	__LC_MACHINE_FLAGS,MACHINE_FLAG_VX
-	lg	%r4,__THREAD_FPU_regs(%r4)	# %r4 <- reg save area
-	jz	2f				# -> no VX, load FP regs
-4:	# Load V0 ..V15 registers
-	VLM	%v0,%v15,0,%r4
-3:	# Load V16..V31 registers
-	VLM	%v16,%v31,256,%r4
-	j	1f
-2:	# Load floating-point registers
-	ld	0,0(%r4)
-	ld	1,8(%r4)
-	ld	2,16(%r4)
-	ld	3,24(%r4)
-	ld	4,32(%r4)
-	ld	5,40(%r4)
-	ld	6,48(%r4)
-	ld	7,56(%r4)
-	ld	8,64(%r4)
-	ld	9,72(%r4)
-	ld	10,80(%r4)
-	ld	11,88(%r4)
-	ld	12,96(%r4)
-	ld	13,104(%r4)
-	ld	14,112(%r4)
-	ld	15,120(%r4)
-1:	# Clear CIF_FPU bit
-	ni	__LC_CPU_FLAGS+7,255-_CIF_FPU
-	lg	%r9,48(%r11)		# return from load_fpu_regs
+	larl	%r9,load_fpu_regs
 	br	%r14
-.Lcleanup_load_fpu_regs_vx:
-	.quad	.Lload_fpu_regs_vx
-.Lcleanup_load_fpu_regs_vx_high:
-	.quad	.Lload_fpu_regs_vx_high
-.Lcleanup_load_fpu_regs_fp:
-	.quad	.Lload_fpu_regs_fp
-.Lcleanup_load_fpu_regs_done:
-	.quad	.Lload_fpu_regs_done
 
 /*
  * Integer constants
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/s390/kernel/head64.S linux-libre-4.4.107-gnu/arch/s390/kernel/head64.S
--- linux-libre-4.4-gnu/arch/s390/kernel/head64.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/s390/kernel/head64.S	2017-12-20 04:05:01.000000000 -0500
@@ -16,7 +16,7 @@
 
 __HEAD
 ENTRY(startup_continue)
-	tm	__LC_STFL_FAC_LIST+6,0x80	# LPP available ?
+	tm	__LC_STFL_FAC_LIST+5,0x80	# LPP available ?
 	jz	0f
 	xc	__LC_LPP+1(7,0),__LC_LPP+1	# clear lpp and current_pid
 	mvi	__LC_LPP,0x80			#   and set LPP_MAGIC
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/s390/kernel/ipl.c linux-libre-4.4.107-gnu/arch/s390/kernel/ipl.c
--- linux-libre-4.4-gnu/arch/s390/kernel/ipl.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/s390/kernel/ipl.c	2017-12-20 04:05:01.000000000 -0500
@@ -2070,13 +2070,6 @@ void s390_reset_system(void (*fn_pre)(vo
 	S390_lowcore.program_new_psw.addr =
 		PSW_ADDR_AMODE | (unsigned long) s390_base_pgm_handler;
 
-	/*
-	 * Clear subchannel ID and number to signal new kernel that no CCW or
-	 * SCSI IPL has been done (for kexec and kdump)
-	 */
-	S390_lowcore.subchannel_id = 0;
-	S390_lowcore.subchannel_nr = 0;
-
 	/* Store status at absolute zero */
 	store_status();
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/s390/kernel/process.c linux-libre-4.4.107-gnu/arch/s390/kernel/process.c
--- linux-libre-4.4-gnu/arch/s390/kernel/process.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/s390/kernel/process.c	2017-12-20 04:05:01.000000000 -0500
@@ -72,7 +72,6 @@ extern void kernel_thread_starter(void);
  */
 void exit_thread(void)
 {
-	exit_thread_runtime_instr();
 }
 
 void flush_thread(void)
@@ -87,6 +86,7 @@ void arch_release_task_struct(struct tas
 {
 	/* Free either the floating-point or the vector register save area */
 	kfree(tsk->thread.fpu.regs);
+	runtime_instr_release(tsk);
 }
 
 int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src)
@@ -137,6 +137,7 @@ int copy_thread(unsigned long clone_flag
 	memset(&p->thread.per_user, 0, sizeof(p->thread.per_user));
 	memset(&p->thread.per_event, 0, sizeof(p->thread.per_event));
 	clear_tsk_thread_flag(p, TIF_SINGLE_STEP);
+	p->thread.per_flags = 0;
 	/* Initialize per thread user and system timer values */
 	ti = task_thread_info(p);
 	ti->user_timer = 0;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/s390/kernel/ptrace.c linux-libre-4.4.107-gnu/arch/s390/kernel/ptrace.c
--- linux-libre-4.4-gnu/arch/s390/kernel/ptrace.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/s390/kernel/ptrace.c	2017-12-20 04:05:01.000000000 -0500
@@ -963,6 +963,11 @@ static int s390_fpregs_set(struct task_s
 	if (target == current)
 		save_fpu_regs();
 
+	if (MACHINE_HAS_VX)
+		convert_vx_to_fp(fprs, target->thread.fpu.vxrs);
+	else
+		memcpy(&fprs, target->thread.fpu.fprs, sizeof(fprs));
+
 	/* If setting FPC, must validate it first. */
 	if (count > 0 && pos < offsetof(s390_fp_regs, fprs)) {
 		u32 ufpc[2] = { target->thread.fpu.fpc, 0 };
@@ -1067,6 +1072,9 @@ static int s390_vxrs_low_set(struct task
 	if (target == current)
 		save_fpu_regs();
 
+	for (i = 0; i < __NUM_VXRS_LOW; i++)
+		vxrs[i] = *((__u64 *)(target->thread.fpu.vxrs + i) + 1);
+
 	rc = user_regset_copyin(&pos, &count, &kbuf, &ubuf, vxrs, 0, -1);
 	if (rc == 0)
 		for (i = 0; i < __NUM_VXRS_LOW; i++)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/s390/kernel/runtime_instr.c linux-libre-4.4.107-gnu/arch/s390/kernel/runtime_instr.c
--- linux-libre-4.4-gnu/arch/s390/kernel/runtime_instr.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/s390/kernel/runtime_instr.c	2017-12-20 04:05:01.000000000 -0500
@@ -18,11 +18,24 @@
 /* empty control block to disable RI by loading it */
 struct runtime_instr_cb runtime_instr_empty_cb;
 
+void runtime_instr_release(struct task_struct *tsk)
+{
+	kfree(tsk->thread.ri_cb);
+}
+
 static void disable_runtime_instr(void)
 {
-	struct pt_regs *regs = task_pt_regs(current);
+	struct task_struct *task = current;
+	struct pt_regs *regs;
 
+	if (!task->thread.ri_cb)
+		return;
+	regs = task_pt_regs(task);
+	preempt_disable();
 	load_runtime_instr_cb(&runtime_instr_empty_cb);
+	kfree(task->thread.ri_cb);
+	task->thread.ri_cb = NULL;
+	preempt_enable();
 
 	/*
 	 * Make sure the RI bit is deleted from the PSW. If the user did not
@@ -43,17 +56,6 @@ static void init_runtime_instr_cb(struct
 	cb->valid = 1;
 }
 
-void exit_thread_runtime_instr(void)
-{
-	struct task_struct *task = current;
-
-	if (!task->thread.ri_cb)
-		return;
-	disable_runtime_instr();
-	kfree(task->thread.ri_cb);
-	task->thread.ri_cb = NULL;
-}
-
 SYSCALL_DEFINE1(s390_runtime_instr, int, command)
 {
 	struct runtime_instr_cb *cb;
@@ -62,9 +64,7 @@ SYSCALL_DEFINE1(s390_runtime_instr, int,
 		return -EOPNOTSUPP;
 
 	if (command == S390_RUNTIME_INSTR_STOP) {
-		preempt_disable();
-		exit_thread_runtime_instr();
-		preempt_enable();
+		disable_runtime_instr();
 		return 0;
 	}
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/s390/kernel/setup.c linux-libre-4.4.107-gnu/arch/s390/kernel/setup.c
--- linux-libre-4.4-gnu/arch/s390/kernel/setup.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/s390/kernel/setup.c	2017-12-20 04:05:01.000000000 -0500
@@ -329,6 +329,7 @@ static void __init setup_lowcore(void)
 		+ PAGE_SIZE - STACK_FRAME_OVERHEAD - sizeof(struct pt_regs);
 	lc->current_task = (unsigned long) init_thread_union.thread_info.task;
 	lc->thread_info = (unsigned long) &init_thread_union;
+	lc->lpp = LPP_MAGIC;
 	lc->machine_flags = S390_lowcore.machine_flags;
 	lc->stfl_fac_list = S390_lowcore.stfl_fac_list;
 	memcpy(lc->stfle_fac_list, S390_lowcore.stfle_fac_list,
@@ -804,10 +805,10 @@ static void __init setup_randomness(void
 {
 	struct sysinfo_3_2_2 *vmms;
 
-	vmms = (struct sysinfo_3_2_2 *) alloc_page(GFP_KERNEL);
-	if (vmms && stsi(vmms, 3, 2, 2) == 0 && vmms->count)
-		add_device_randomness(&vmms, vmms->count);
-	free_page((unsigned long) vmms);
+	vmms = (struct sysinfo_3_2_2 *) memblock_alloc(PAGE_SIZE, PAGE_SIZE);
+	if (stsi(vmms, 3, 2, 2) == 0 && vmms->count)
+		add_device_randomness(&vmms->vm, sizeof(vmms->vm[0]) * vmms->count);
+	memblock_free((unsigned long) vmms, PAGE_SIZE);
 }
 
 /*
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/s390/kernel/syscalls.S linux-libre-4.4.107-gnu/arch/s390/kernel/syscalls.S
--- linux-libre-4.4-gnu/arch/s390/kernel/syscalls.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/s390/kernel/syscalls.S	2017-12-20 04:05:01.000000000 -0500
@@ -369,10 +369,10 @@ SYSCALL(sys_recvmmsg,compat_sys_recvmmsg
 SYSCALL(sys_sendmmsg,compat_sys_sendmmsg)
 SYSCALL(sys_socket,sys_socket)
 SYSCALL(sys_socketpair,compat_sys_socketpair)		/* 360 */
-SYSCALL(sys_bind,sys_bind)
-SYSCALL(sys_connect,sys_connect)
+SYSCALL(sys_bind,compat_sys_bind)
+SYSCALL(sys_connect,compat_sys_connect)
 SYSCALL(sys_listen,sys_listen)
-SYSCALL(sys_accept4,sys_accept4)
+SYSCALL(sys_accept4,compat_sys_accept4)
 SYSCALL(sys_getsockopt,compat_sys_getsockopt)		/* 365 */
 SYSCALL(sys_setsockopt,compat_sys_setsockopt)
 SYSCALL(sys_getsockname,compat_sys_getsockname)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/s390/kvm/kvm-s390.c linux-libre-4.4.107-gnu/arch/s390/kvm/kvm-s390.c
--- linux-libre-4.4-gnu/arch/s390/kvm/kvm-s390.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/s390/kvm/kvm-s390.c	2017-12-20 04:05:01.000000000 -0500
@@ -295,6 +295,9 @@ int kvm_vm_ioctl_get_dirty_log(struct kv
 	struct kvm_memory_slot *memslot;
 	int is_dirty = 0;
 
+	if (kvm_is_ucontrol(kvm))
+		return -EINVAL;
+
 	mutex_lock(&kvm->slots_lock);
 
 	r = -EINVAL;
@@ -1268,44 +1271,18 @@ int kvm_arch_vcpu_init(struct kvm_vcpu *
 	return 0;
 }
 
-/*
- * Backs up the current FP/VX register save area on a particular
- * destination.  Used to switch between different register save
- * areas.
- */
-static inline void save_fpu_to(struct fpu *dst)
-{
-	dst->fpc = current->thread.fpu.fpc;
-	dst->regs = current->thread.fpu.regs;
-}
-
-/*
- * Switches the FP/VX register save area from which to lazy
- * restore register contents.
- */
-static inline void load_fpu_from(struct fpu *from)
-{
-	current->thread.fpu.fpc = from->fpc;
-	current->thread.fpu.regs = from->regs;
-}
-
 void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
 {
 	/* Save host register state */
 	save_fpu_regs();
-	save_fpu_to(&vcpu->arch.host_fpregs);
-
-	if (test_kvm_facility(vcpu->kvm, 129)) {
-		current->thread.fpu.fpc = vcpu->run->s.regs.fpc;
-		/*
-		 * Use the register save area in the SIE-control block
-		 * for register restore and save in kvm_arch_vcpu_put()
-		 */
-		current->thread.fpu.vxrs =
-			(__vector128 *)&vcpu->run->s.regs.vrs;
-	} else
-		load_fpu_from(&vcpu->arch.guest_fpregs);
+	vcpu->arch.host_fpregs.fpc = current->thread.fpu.fpc;
+	vcpu->arch.host_fpregs.regs = current->thread.fpu.regs;
 
+	/* Depending on MACHINE_HAS_VX, data stored to vrs either
+	 * has vector register or floating point register format.
+	 */
+	current->thread.fpu.regs = vcpu->run->s.regs.vrs;
+	current->thread.fpu.fpc = vcpu->run->s.regs.fpc;
 	if (test_fp_ctl(current->thread.fpu.fpc))
 		/* User space provided an invalid FPC, let's clear it */
 		current->thread.fpu.fpc = 0;
@@ -1321,19 +1298,13 @@ void kvm_arch_vcpu_put(struct kvm_vcpu *
 	atomic_andnot(CPUSTAT_RUNNING, &vcpu->arch.sie_block->cpuflags);
 	gmap_disable(vcpu->arch.gmap);
 
+	/* Save guest register state */
 	save_fpu_regs();
+	vcpu->run->s.regs.fpc = current->thread.fpu.fpc;
 
-	if (test_kvm_facility(vcpu->kvm, 129))
-		/*
-		 * kvm_arch_vcpu_load() set up the register save area to
-		 * the &vcpu->run->s.regs.vrs and, thus, the vector registers
-		 * are already saved.  Only the floating-point control must be
-		 * copied.
-		 */
-		vcpu->run->s.regs.fpc = current->thread.fpu.fpc;
-	else
-		save_fpu_to(&vcpu->arch.guest_fpregs);
-	load_fpu_from(&vcpu->arch.host_fpregs);
+	/* Restore host register state */
+	current->thread.fpu.fpc = vcpu->arch.host_fpregs.fpc;
+	current->thread.fpu.regs = vcpu->arch.host_fpregs.regs;
 
 	save_access_regs(vcpu->run->s.regs.acrs);
 	restore_access_regs(vcpu->arch.host_acrs);
@@ -1351,8 +1322,9 @@ static void kvm_s390_vcpu_initial_reset(
 	memset(vcpu->arch.sie_block->gcr, 0, 16 * sizeof(__u64));
 	vcpu->arch.sie_block->gcr[0]  = 0xE0UL;
 	vcpu->arch.sie_block->gcr[14] = 0xC2000000UL;
-	vcpu->arch.guest_fpregs.fpc = 0;
-	asm volatile("lfpc %0" : : "Q" (vcpu->arch.guest_fpregs.fpc));
+	/* make sure the new fpc will be lazily loaded */
+	save_fpu_regs();
+	current->thread.fpu.fpc = 0;
 	vcpu->arch.sie_block->gbea = 1;
 	vcpu->arch.sie_block->pp = 0;
 	vcpu->arch.pfault_token = KVM_S390_PFAULT_TOKEN_INVALID;
@@ -1501,19 +1473,6 @@ struct kvm_vcpu *kvm_arch_vcpu_create(st
 	vcpu->arch.local_int.wq = &vcpu->wq;
 	vcpu->arch.local_int.cpuflags = &vcpu->arch.sie_block->cpuflags;
 
-	/*
-	 * Allocate a save area for floating-point registers.  If the vector
-	 * extension is available, register contents are saved in the SIE
-	 * control block.  The allocated save area is still required in
-	 * particular places, for example, in kvm_s390_vcpu_store_status().
-	 */
-	vcpu->arch.guest_fpregs.fprs = kzalloc(sizeof(freg_t) * __NUM_FPRS,
-					       GFP_KERNEL);
-	if (!vcpu->arch.guest_fpregs.fprs) {
-		rc = -ENOMEM;
-		goto out_free_sie_block;
-	}
-
 	rc = kvm_vcpu_init(vcpu, kvm, id);
 	if (rc)
 		goto out_free_sie_block;
@@ -1734,19 +1693,27 @@ int kvm_arch_vcpu_ioctl_get_sregs(struct
 
 int kvm_arch_vcpu_ioctl_set_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu)
 {
+	/* make sure the new values will be lazily loaded */
+	save_fpu_regs();
 	if (test_fp_ctl(fpu->fpc))
 		return -EINVAL;
-	memcpy(vcpu->arch.guest_fpregs.fprs, &fpu->fprs, sizeof(fpu->fprs));
-	vcpu->arch.guest_fpregs.fpc = fpu->fpc;
-	save_fpu_regs();
-	load_fpu_from(&vcpu->arch.guest_fpregs);
+	current->thread.fpu.fpc = fpu->fpc;
+	if (MACHINE_HAS_VX)
+		convert_fp_to_vx(current->thread.fpu.vxrs, (freg_t *)fpu->fprs);
+	else
+		memcpy(current->thread.fpu.fprs, &fpu->fprs, sizeof(fpu->fprs));
 	return 0;
 }
 
 int kvm_arch_vcpu_ioctl_get_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu)
 {
-	memcpy(&fpu->fprs, vcpu->arch.guest_fpregs.fprs, sizeof(fpu->fprs));
-	fpu->fpc = vcpu->arch.guest_fpregs.fpc;
+	/* make sure we have the latest values */
+	save_fpu_regs();
+	if (MACHINE_HAS_VX)
+		convert_vx_to_fp((freg_t *)fpu->fprs, current->thread.fpu.vxrs);
+	else
+		memcpy(fpu->fprs, current->thread.fpu.fprs, sizeof(fpu->fprs));
+	fpu->fpc = current->thread.fpu.fpc;
 	return 0;
 }
 
@@ -2266,41 +2233,50 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_v
 int kvm_s390_store_status_unloaded(struct kvm_vcpu *vcpu, unsigned long gpa)
 {
 	unsigned char archmode = 1;
+	freg_t fprs[NUM_FPRS];
 	unsigned int px;
 	u64 clkcomp;
 	int rc;
 
+	px = kvm_s390_get_prefix(vcpu);
 	if (gpa == KVM_S390_STORE_STATUS_NOADDR) {
 		if (write_guest_abs(vcpu, 163, &archmode, 1))
 			return -EFAULT;
-		gpa = SAVE_AREA_BASE;
+		gpa = 0;
 	} else if (gpa == KVM_S390_STORE_STATUS_PREFIXED) {
 		if (write_guest_real(vcpu, 163, &archmode, 1))
 			return -EFAULT;
-		gpa = kvm_s390_real_to_abs(vcpu, SAVE_AREA_BASE);
+		gpa = px;
+	} else
+		gpa -= __LC_FPREGS_SAVE_AREA;
+
+	/* manually convert vector registers if necessary */
+	if (MACHINE_HAS_VX) {
+		convert_vx_to_fp(fprs, (__vector128 *) vcpu->run->s.regs.vrs);
+		rc = write_guest_abs(vcpu, gpa + __LC_FPREGS_SAVE_AREA,
+				     fprs, 128);
+	} else {
+		rc = write_guest_abs(vcpu, gpa + __LC_FPREGS_SAVE_AREA,
+				     vcpu->run->s.regs.vrs, 128);
 	}
-	rc = write_guest_abs(vcpu, gpa + offsetof(struct save_area, fp_regs),
-			     vcpu->arch.guest_fpregs.fprs, 128);
-	rc |= write_guest_abs(vcpu, gpa + offsetof(struct save_area, gp_regs),
+	rc |= write_guest_abs(vcpu, gpa + __LC_GPREGS_SAVE_AREA,
 			      vcpu->run->s.regs.gprs, 128);
-	rc |= write_guest_abs(vcpu, gpa + offsetof(struct save_area, psw),
+	rc |= write_guest_abs(vcpu, gpa + __LC_PSW_SAVE_AREA,
 			      &vcpu->arch.sie_block->gpsw, 16);
-	px = kvm_s390_get_prefix(vcpu);
-	rc |= write_guest_abs(vcpu, gpa + offsetof(struct save_area, pref_reg),
+	rc |= write_guest_abs(vcpu, gpa + __LC_PREFIX_SAVE_AREA,
 			      &px, 4);
-	rc |= write_guest_abs(vcpu,
-			      gpa + offsetof(struct save_area, fp_ctrl_reg),
-			      &vcpu->arch.guest_fpregs.fpc, 4);
-	rc |= write_guest_abs(vcpu, gpa + offsetof(struct save_area, tod_reg),
+	rc |= write_guest_abs(vcpu, gpa + __LC_FP_CREG_SAVE_AREA,
+			      &vcpu->run->s.regs.fpc, 4);
+	rc |= write_guest_abs(vcpu, gpa + __LC_TOD_PROGREG_SAVE_AREA,
 			      &vcpu->arch.sie_block->todpr, 4);
-	rc |= write_guest_abs(vcpu, gpa + offsetof(struct save_area, timer),
+	rc |= write_guest_abs(vcpu, gpa + __LC_CPU_TIMER_SAVE_AREA,
 			      &vcpu->arch.sie_block->cputm, 8);
 	clkcomp = vcpu->arch.sie_block->ckc >> 8;
-	rc |= write_guest_abs(vcpu, gpa + offsetof(struct save_area, clk_cmp),
+	rc |= write_guest_abs(vcpu, gpa + __LC_CLOCK_COMP_SAVE_AREA,
 			      &clkcomp, 8);
-	rc |= write_guest_abs(vcpu, gpa + offsetof(struct save_area, acc_regs),
+	rc |= write_guest_abs(vcpu, gpa + __LC_AREGS_SAVE_AREA,
 			      &vcpu->run->s.regs.acrs, 64);
-	rc |= write_guest_abs(vcpu, gpa + offsetof(struct save_area, ctrl_regs),
+	rc |= write_guest_abs(vcpu, gpa + __LC_CREGS_SAVE_AREA,
 			      &vcpu->arch.sie_block->gcr, 128);
 	return rc ? -EFAULT : 0;
 }
@@ -2313,19 +2289,7 @@ int kvm_s390_vcpu_store_status(struct kv
 	 * it into the save area
 	 */
 	save_fpu_regs();
-	if (test_kvm_facility(vcpu->kvm, 129)) {
-		/*
-		 * If the vector extension is available, the vector registers
-		 * which overlaps with floating-point registers are saved in
-		 * the SIE-control block.  Hence, extract the floating-point
-		 * registers and the FPC value and store them in the
-		 * guest_fpregs structure.
-		 */
-		vcpu->arch.guest_fpregs.fpc = current->thread.fpu.fpc;
-		convert_vx_to_fp(vcpu->arch.guest_fpregs.fprs,
-				 current->thread.fpu.vxrs);
-	} else
-		save_fpu_to(&vcpu->arch.guest_fpregs);
+	vcpu->run->s.regs.fpc = current->thread.fpu.fpc;
 	save_access_regs(vcpu->run->s.regs.acrs);
 
 	return kvm_s390_store_status_unloaded(vcpu, addr);
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/s390/mm/extable.c linux-libre-4.4.107-gnu/arch/s390/mm/extable.c
--- linux-libre-4.4-gnu/arch/s390/mm/extable.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/s390/mm/extable.c	2017-12-20 04:05:01.000000000 -0500
@@ -52,12 +52,16 @@ void sort_extable(struct exception_table
 	int i;
 
 	/* Normalize entries to being relative to the start of the section */
-	for (p = start, i = 0; p < finish; p++, i += 8)
+	for (p = start, i = 0; p < finish; p++, i += 8) {
 		p->insn += i;
+		p->fixup += i + 4;
+	}
 	sort(start, finish - start, sizeof(*start), cmp_ex, NULL);
 	/* Denormalize all entries */
-	for (p = start, i = 0; p < finish; p++, i += 8)
+	for (p = start, i = 0; p < finish; p++, i += 8) {
 		p->insn -= i;
+		p->fixup -= i + 4;
+	}
 }
 
 #ifdef CONFIG_MODULES
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/s390/mm/init.c linux-libre-4.4.107-gnu/arch/s390/mm/init.c
--- linux-libre-4.4-gnu/arch/s390/mm/init.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/s390/mm/init.c	2017-12-20 04:05:01.000000000 -0500
@@ -89,7 +89,8 @@ void __init paging_init(void)
 		asce_bits = _ASCE_TYPE_REGION3 | _ASCE_TABLE_LENGTH;
 		pgd_type = _REGION3_ENTRY_EMPTY;
 	}
-	S390_lowcore.kernel_asce = (__pa(init_mm.pgd) & PAGE_MASK) | asce_bits;
+	init_mm.context.asce = (__pa(init_mm.pgd) & PAGE_MASK) | asce_bits;
+	S390_lowcore.kernel_asce = init_mm.context.asce;
 	clear_table((unsigned long *) init_mm.pgd, pgd_type,
 		    sizeof(unsigned long)*2048);
 	vmem_map_init();
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/s390/mm/mmap.c linux-libre-4.4.107-gnu/arch/s390/mm/mmap.c
--- linux-libre-4.4-gnu/arch/s390/mm/mmap.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/s390/mm/mmap.c	2017-12-20 04:05:01.000000000 -0500
@@ -97,7 +97,7 @@ arch_get_unmapped_area(struct file *filp
 		addr = PAGE_ALIGN(addr);
 		vma = find_vma(mm, addr);
 		if (TASK_SIZE - len >= addr && addr >= mmap_min_addr &&
-		    (!vma || addr + len <= vma->vm_start))
+		    (!vma || addr + len <= vm_start_gap(vma)))
 			return addr;
 	}
 
@@ -135,7 +135,7 @@ arch_get_unmapped_area_topdown(struct fi
 		addr = PAGE_ALIGN(addr);
 		vma = find_vma(mm, addr);
 		if (TASK_SIZE - len >= addr && addr >= mmap_min_addr &&
-				(!vma || addr + len <= vma->vm_start))
+				(!vma || addr + len <= vm_start_gap(vma)))
 			return addr;
 	}
 
@@ -174,7 +174,7 @@ int s390_mmap_check(unsigned long addr,
 	if (!(flags & MAP_FIXED))
 		addr = 0;
 	if ((addr + len) >= TASK_SIZE)
-		return crst_table_upgrade(current->mm, 1UL << 53);
+		return crst_table_upgrade(current->mm);
 	return 0;
 }
 
@@ -191,7 +191,7 @@ s390_get_unmapped_area(struct file *filp
 		return area;
 	if (area == -ENOMEM && !is_compat_task() && TASK_SIZE < (1UL << 53)) {
 		/* Upgrade the page table to 4 levels and retry. */
-		rc = crst_table_upgrade(mm, 1UL << 53);
+		rc = crst_table_upgrade(mm);
 		if (rc)
 			return (unsigned long) rc;
 		area = arch_get_unmapped_area(filp, addr, len, pgoff, flags);
@@ -213,7 +213,7 @@ s390_get_unmapped_area_topdown(struct fi
 		return area;
 	if (area == -ENOMEM && !is_compat_task() && TASK_SIZE < (1UL << 53)) {
 		/* Upgrade the page table to 4 levels and retry. */
-		rc = crst_table_upgrade(mm, 1UL << 53);
+		rc = crst_table_upgrade(mm);
 		if (rc)
 			return (unsigned long) rc;
 		area = arch_get_unmapped_area_topdown(filp, addr, len,
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/s390/mm/pgtable.c linux-libre-4.4.107-gnu/arch/s390/mm/pgtable.c
--- linux-libre-4.4-gnu/arch/s390/mm/pgtable.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/s390/mm/pgtable.c	2017-12-20 04:05:01.000000000 -0500
@@ -49,81 +49,52 @@ static void __crst_table_upgrade(void *a
 	__tlb_flush_local();
 }
 
-int crst_table_upgrade(struct mm_struct *mm, unsigned long limit)
+int crst_table_upgrade(struct mm_struct *mm)
 {
 	unsigned long *table, *pgd;
-	unsigned long entry;
-	int flush;
 
-	BUG_ON(limit > (1UL << 53));
-	flush = 0;
-repeat:
+	/* upgrade should only happen from 3 to 4 levels */
+	BUG_ON(mm->context.asce_limit != (1UL << 42));
+
 	table = crst_table_alloc(mm);
 	if (!table)
 		return -ENOMEM;
+
 	spin_lock_bh(&mm->page_table_lock);
-	if (mm->context.asce_limit < limit) {
-		pgd = (unsigned long *) mm->pgd;
-		if (mm->context.asce_limit <= (1UL << 31)) {
-			entry = _REGION3_ENTRY_EMPTY;
-			mm->context.asce_limit = 1UL << 42;
-			mm->context.asce_bits = _ASCE_TABLE_LENGTH |
-						_ASCE_USER_BITS |
-						_ASCE_TYPE_REGION3;
-		} else {
-			entry = _REGION2_ENTRY_EMPTY;
-			mm->context.asce_limit = 1UL << 53;
-			mm->context.asce_bits = _ASCE_TABLE_LENGTH |
-						_ASCE_USER_BITS |
-						_ASCE_TYPE_REGION2;
-		}
-		crst_table_init(table, entry);
-		pgd_populate(mm, (pgd_t *) table, (pud_t *) pgd);
-		mm->pgd = (pgd_t *) table;
-		mm->task_size = mm->context.asce_limit;
-		table = NULL;
-		flush = 1;
-	}
+	pgd = (unsigned long *) mm->pgd;
+	crst_table_init(table, _REGION2_ENTRY_EMPTY);
+	pgd_populate(mm, (pgd_t *) table, (pud_t *) pgd);
+	mm->pgd = (pgd_t *) table;
+	mm->context.asce_limit = 1UL << 53;
+	mm->context.asce = __pa(mm->pgd) | _ASCE_TABLE_LENGTH |
+			   _ASCE_USER_BITS | _ASCE_TYPE_REGION2;
+	mm->task_size = mm->context.asce_limit;
 	spin_unlock_bh(&mm->page_table_lock);
-	if (table)
-		crst_table_free(mm, table);
-	if (mm->context.asce_limit < limit)
-		goto repeat;
-	if (flush)
-		on_each_cpu(__crst_table_upgrade, mm, 0);
+
+	on_each_cpu(__crst_table_upgrade, mm, 0);
 	return 0;
 }
 
-void crst_table_downgrade(struct mm_struct *mm, unsigned long limit)
+void crst_table_downgrade(struct mm_struct *mm)
 {
 	pgd_t *pgd;
 
+	/* downgrade should only happen from 3 to 2 levels (compat only) */
+	BUG_ON(mm->context.asce_limit != (1UL << 42));
+
 	if (current->active_mm == mm) {
 		clear_user_asce();
 		__tlb_flush_mm(mm);
 	}
-	while (mm->context.asce_limit > limit) {
-		pgd = mm->pgd;
-		switch (pgd_val(*pgd) & _REGION_ENTRY_TYPE_MASK) {
-		case _REGION_ENTRY_TYPE_R2:
-			mm->context.asce_limit = 1UL << 42;
-			mm->context.asce_bits = _ASCE_TABLE_LENGTH |
-						_ASCE_USER_BITS |
-						_ASCE_TYPE_REGION3;
-			break;
-		case _REGION_ENTRY_TYPE_R3:
-			mm->context.asce_limit = 1UL << 31;
-			mm->context.asce_bits = _ASCE_TABLE_LENGTH |
-						_ASCE_USER_BITS |
-						_ASCE_TYPE_SEGMENT;
-			break;
-		default:
-			BUG();
-		}
-		mm->pgd = (pgd_t *) (pgd_val(*pgd) & _REGION_ENTRY_ORIGIN);
-		mm->task_size = mm->context.asce_limit;
-		crst_table_free(mm, (unsigned long *) pgd);
-	}
+
+	pgd = mm->pgd;
+	mm->pgd = (pgd_t *) (pgd_val(*pgd) & _REGION_ENTRY_ORIGIN);
+	mm->context.asce_limit = 1UL << 31;
+	mm->context.asce = __pa(mm->pgd) | _ASCE_TABLE_LENGTH |
+			   _ASCE_USER_BITS | _ASCE_TYPE_SEGMENT;
+	mm->task_size = mm->context.asce_limit;
+	crst_table_free(mm, (unsigned long *) pgd);
+
 	if (current->active_mm == mm)
 		set_user_asce(mm);
 }
@@ -195,7 +166,7 @@ EXPORT_SYMBOL_GPL(gmap_alloc);
 static void gmap_flush_tlb(struct gmap *gmap)
 {
 	if (MACHINE_HAS_IDTE)
-		__tlb_flush_asce(gmap->mm, gmap->asce);
+		__tlb_flush_idte(gmap->asce);
 	else
 		__tlb_flush_global();
 }
@@ -234,7 +205,7 @@ void gmap_free(struct gmap *gmap)
 
 	/* Flush tlb. */
 	if (MACHINE_HAS_IDTE)
-		__tlb_flush_asce(gmap->mm, gmap->asce);
+		__tlb_flush_idte(gmap->asce);
 	else
 		__tlb_flush_global();
 
@@ -1266,11 +1237,28 @@ EXPORT_SYMBOL_GPL(s390_reset_cmma);
  */
 bool gmap_test_and_clear_dirty(unsigned long address, struct gmap *gmap)
 {
+	pgd_t *pgd;
+	pud_t *pud;
+	pmd_t *pmd;
 	pte_t *pte;
 	spinlock_t *ptl;
 	bool dirty = false;
 
-	pte = get_locked_pte(gmap->mm, address, &ptl);
+	pgd = pgd_offset(gmap->mm, address);
+	pud = pud_alloc(gmap->mm, pgd, address);
+	if (!pud)
+		return false;
+	pmd = pmd_alloc(gmap->mm, pud, address);
+	if (!pmd)
+		return false;
+	/* We can't run guests backed by huge pages, but userspace can
+	 * still set them up and then try to migrate them without any
+	 * migration support.
+	 */
+	if (pmd_large(*pmd))
+		return true;
+
+	pte = pte_alloc_map_lock(gmap->mm, pmd, address, &ptl);
 	if (unlikely(!pte))
 		return false;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/s390/mm/vmem.c linux-libre-4.4.107-gnu/arch/s390/mm/vmem.c
--- linux-libre-4.4-gnu/arch/s390/mm/vmem.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/s390/mm/vmem.c	2017-12-20 04:05:01.000000000 -0500
@@ -372,7 +372,7 @@ void __init vmem_map_init(void)
 	ro_end = (unsigned long)&_eshared & PAGE_MASK;
 	for_each_memblock(memory, reg) {
 		start = reg->base;
-		end = reg->base + reg->size - 1;
+		end = reg->base + reg->size;
 		if (start >= ro_end || end <= ro_start)
 			vmem_add_mem(start, end - start, 0);
 		else if (start >= ro_start && end <= ro_end)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/s390/net/bpf_jit_comp.c linux-libre-4.4.107-gnu/arch/s390/net/bpf_jit_comp.c
--- linux-libre-4.4-gnu/arch/s390/net/bpf_jit_comp.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/s390/net/bpf_jit_comp.c	2017-12-20 04:05:01.000000000 -0500
@@ -45,7 +45,7 @@ struct bpf_jit {
 	int labels[1];		/* Labels for local jumps */
 };
 
-#define BPF_SIZE_MAX	0x7ffff	/* Max size for program (20 bit signed displ) */
+#define BPF_SIZE_MAX	0xffff	/* Max size for program (16 bit branches) */
 
 #define SEEN_SKB	1	/* skb access */
 #define SEEN_MEM	2	/* use mem[] for temporary storage */
@@ -446,7 +446,7 @@ static void bpf_jit_prologue(struct bpf_
 		emit_load_skb_data_hlen(jit);
 	if (jit->seen & SEEN_SKB_CHANGE)
 		/* stg %b1,ST_OFF_SKBP(%r0,%r15) */
-		EMIT6_DISP_LH(0xe3000000, 0x0024, REG_W1, REG_0, REG_15,
+		EMIT6_DISP_LH(0xe3000000, 0x0024, BPF_REG_1, REG_0, REG_15,
 			      STK_OFF_SKBP);
 	/* Clear A (%b0) and X (%b7) registers for converted BPF programs */
 	if (is_classic) {
@@ -1250,7 +1250,8 @@ static int bpf_jit_prog(struct bpf_jit *
 		insn_count = bpf_jit_insn(jit, fp, i);
 		if (insn_count < 0)
 			return -1;
-		jit->addrs[i + 1] = jit->prg; /* Next instruction address */
+		/* Next instruction address */
+		jit->addrs[i + insn_count] = jit->prg;
 	}
 	bpf_jit_epilogue(jit);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/s390/net/bpf_jit.h linux-libre-4.4.107-gnu/arch/s390/net/bpf_jit.h
--- linux-libre-4.4-gnu/arch/s390/net/bpf_jit.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/s390/net/bpf_jit.h	2017-12-20 04:05:01.000000000 -0500
@@ -37,7 +37,7 @@ extern u8 sk_load_word[], sk_load_half[]
  *	      |		      |     |
  *	      +---------------+     |
  *	      | 8 byte skbp   |     |
- * R15+170 -> +---------------+     |
+ * R15+176 -> +---------------+     |
  *	      | 8 byte hlen   |     |
  * R15+168 -> +---------------+     |
  *	      | 4 byte align  |     |
@@ -58,7 +58,7 @@ extern u8 sk_load_word[], sk_load_half[]
 #define STK_OFF		(STK_SPACE - STK_160_UNUSED)
 #define STK_OFF_TMP	160	/* Offset of tmp buffer on stack */
 #define STK_OFF_HLEN	168	/* Offset of SKB header length on stack */
-#define STK_OFF_SKBP	170	/* Offset of SKB pointer on stack */
+#define STK_OFF_SKBP	176	/* Offset of SKB pointer on stack */
 
 #define STK_OFF_R6	(160 - 11 * 8)	/* Offset of r6 on stack */
 #define STK_OFF_TCCNT	(160 - 12 * 8)	/* Offset of tail_call_cnt on stack */
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/s390/pci/pci.c linux-libre-4.4.107-gnu/arch/s390/pci/pci.c
--- linux-libre-4.4-gnu/arch/s390/pci/pci.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/s390/pci/pci.c	2017-12-20 04:05:01.000000000 -0500
@@ -359,7 +359,8 @@ static void zpci_irq_handler(struct airq
 				/* End of second scan with interrupts on. */
 				break;
 			/* First scan complete, reenable interrupts. */
-			zpci_set_irq_ctrl(SIC_IRQ_MODE_SINGLE, NULL, PCI_ISC);
+			if (zpci_set_irq_ctrl(SIC_IRQ_MODE_SINGLE, NULL, PCI_ISC))
+				break;
 			si = 0;
 			continue;
 		}
@@ -701,8 +702,7 @@ static int zpci_restore(struct device *d
 		goto out;
 
 	zpci_map_resources(pdev);
-	zpci_register_ioat(zdev, 0, zdev->start_dma + PAGE_OFFSET,
-			   zdev->start_dma + zdev->iommu_size - 1,
+	zpci_register_ioat(zdev, 0, zdev->start_dma, zdev->end_dma,
 			   (u64) zdev->dma_table);
 
 out:
@@ -871,8 +871,11 @@ static inline int barsize(u8 size)
 
 static int zpci_mem_init(void)
 {
+	BUILD_BUG_ON(!is_power_of_2(__alignof__(struct zpci_fmb)) ||
+		     __alignof__(struct zpci_fmb) < sizeof(struct zpci_fmb));
+
 	zdev_fmb_cache = kmem_cache_create("PCI_FMB_cache", sizeof(struct zpci_fmb),
-				16, 0, NULL);
+					   __alignof__(struct zpci_fmb), 0, NULL);
 	if (!zdev_fmb_cache)
 		goto error_zdev;
 
@@ -919,7 +922,7 @@ static int __init pci_base_init(void)
 	if (!s390_pci_probe)
 		return 0;
 
-	if (!test_facility(69) || !test_facility(71) || !test_facility(72))
+	if (!test_facility(69) || !test_facility(71))
 		return 0;
 
 	rc = zpci_debug_init();
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/s390/pci/pci_dma.c linux-libre-4.4.107-gnu/arch/s390/pci/pci_dma.c
--- linux-libre-4.4-gnu/arch/s390/pci/pci_dma.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/s390/pci/pci_dma.c	2017-12-20 04:05:01.000000000 -0500
@@ -455,29 +455,42 @@ int zpci_dma_init_device(struct zpci_dev
 	zdev->dma_table = dma_alloc_cpu_table();
 	if (!zdev->dma_table) {
 		rc = -ENOMEM;
-		goto out_clean;
+		goto out;
 	}
 
-	zdev->iommu_size = (unsigned long) high_memory - PAGE_OFFSET;
+	/*
+	 * Restrict the iommu bitmap size to the minimum of the following:
+	 * - main memory size
+	 * - 3-level pagetable address limit minus start_dma offset
+	 * - DMA address range allowed by the hardware (clp query pci fn)
+	 *
+	 * Also set zdev->end_dma to the actual end address of the usable
+	 * range, instead of the theoretical maximum as reported by hardware.
+	 */
+	zdev->iommu_size = min3((u64) high_memory,
+				ZPCI_TABLE_SIZE_RT - zdev->start_dma,
+				zdev->end_dma - zdev->start_dma + 1);
+	zdev->end_dma = zdev->start_dma + zdev->iommu_size - 1;
 	zdev->iommu_pages = zdev->iommu_size >> PAGE_SHIFT;
 	zdev->iommu_bitmap = vzalloc(zdev->iommu_pages / 8);
 	if (!zdev->iommu_bitmap) {
 		rc = -ENOMEM;
-		goto out_reg;
+		goto free_dma_table;
 	}
 
-	rc = zpci_register_ioat(zdev,
-				0,
-				zdev->start_dma + PAGE_OFFSET,
-				zdev->start_dma + zdev->iommu_size - 1,
+	rc = zpci_register_ioat(zdev, 0, zdev->start_dma, zdev->end_dma,
 				(u64) zdev->dma_table);
 	if (rc)
-		goto out_reg;
-	return 0;
+		goto free_bitmap;
 
-out_reg:
+	return 0;
+free_bitmap:
+	vfree(zdev->iommu_bitmap);
+	zdev->iommu_bitmap = NULL;
+free_dma_table:
 	dma_free_cpu_table(zdev->dma_table);
-out_clean:
+	zdev->dma_table = NULL;
+out:
 	return rc;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/s390/pci/pci_insn.c linux-libre-4.4.107-gnu/arch/s390/pci/pci_insn.c
--- linux-libre-4.4-gnu/arch/s390/pci/pci_insn.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/s390/pci/pci_insn.c	2017-12-20 04:05:01.000000000 -0500
@@ -7,6 +7,7 @@
 #include <linux/export.h>
 #include <linux/errno.h>
 #include <linux/delay.h>
+#include <asm/facility.h>
 #include <asm/pci_insn.h>
 #include <asm/pci_debug.h>
 #include <asm/processor.h>
@@ -91,11 +92,14 @@ int zpci_refresh_trans(u64 fn, u64 addr,
 }
 
 /* Set Interruption Controls */
-void zpci_set_irq_ctrl(u16 ctl, char *unused, u8 isc)
+int zpci_set_irq_ctrl(u16 ctl, char *unused, u8 isc)
 {
+	if (!test_facility(72))
+		return -EIO;
 	asm volatile (
 		"	.insn	rsy,0xeb00000000d1,%[ctl],%[isc],%[u]\n"
 		: : [ctl] "d" (ctl), [isc] "d" (isc << 27), [u] "Q" (*unused));
+	return 0;
 }
 
 /* PCI Load */
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/score/include/asm/uaccess.h linux-libre-4.4.107-gnu/arch/score/include/asm/uaccess.h
--- linux-libre-4.4-gnu/arch/score/include/asm/uaccess.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/score/include/asm/uaccess.h	2017-12-20 04:05:01.000000000 -0500
@@ -163,7 +163,7 @@ do {									\
 		__get_user_asm(val, "lw", ptr);				\
 		 break;							\
 	case 8: 							\
-		if ((copy_from_user((void *)&val, ptr, 8)) == 0)	\
+		if (__copy_from_user((void *)&val, ptr, 8) == 0)	\
 			__gu_err = 0;					\
 		else							\
 			__gu_err = -EFAULT;				\
@@ -188,6 +188,8 @@ do {									\
 									\
 	if (likely(access_ok(VERIFY_READ, __gu_ptr, size)))		\
 		__get_user_common((x), size, __gu_ptr);			\
+	else								\
+		(x) = 0;						\
 									\
 	__gu_err;							\
 })
@@ -201,6 +203,7 @@ do {									\
 		"2:\n"							\
 		".section .fixup,\"ax\"\n"				\
 		"3:li	%0, %4\n"					\
+		"li	%1, 0\n"					\
 		"j	2b\n"						\
 		".previous\n"						\
 		".section __ex_table,\"a\"\n"				\
@@ -298,35 +301,34 @@ extern int __copy_tofrom_user(void *to,
 static inline unsigned long
 copy_from_user(void *to, const void *from, unsigned long len)
 {
-	unsigned long over;
+	unsigned long res = len;
 
-	if (access_ok(VERIFY_READ, from, len))
-		return __copy_tofrom_user(to, from, len);
+	if (likely(access_ok(VERIFY_READ, from, len)))
+		res = __copy_tofrom_user(to, from, len);
 
-	if ((unsigned long)from < TASK_SIZE) {
-		over = (unsigned long)from + len - TASK_SIZE;
-		return __copy_tofrom_user(to, from, len - over) + over;
-	}
-	return len;
+	if (unlikely(res))
+		memset(to + (len - res), 0, res);
+
+	return res;
 }
 
 static inline unsigned long
 copy_to_user(void *to, const void *from, unsigned long len)
 {
-	unsigned long over;
-
-	if (access_ok(VERIFY_WRITE, to, len))
-		return __copy_tofrom_user(to, from, len);
+	if (likely(access_ok(VERIFY_WRITE, to, len)))
+		len = __copy_tofrom_user(to, from, len);
 
-	if ((unsigned long)to < TASK_SIZE) {
-		over = (unsigned long)to + len - TASK_SIZE;
-		return __copy_tofrom_user(to, from, len - over) + over;
-	}
 	return len;
 }
 
-#define __copy_from_user(to, from, len)	\
-		__copy_tofrom_user((to), (from), (len))
+static inline unsigned long
+__copy_from_user(void *to, const void *from, unsigned long len)
+{
+	unsigned long left = __copy_tofrom_user(to, from, len);
+	if (unlikely(left))
+		memset(to + (len - left), 0, left);
+	return left;
+}
 
 #define __copy_to_user(to, from, len)		\
 		__copy_tofrom_user((to), (from), (len))
@@ -340,17 +342,17 @@ __copy_to_user_inatomic(void *to, const
 static inline unsigned long
 __copy_from_user_inatomic(void *to, const void *from, unsigned long len)
 {
-	return __copy_from_user(to, from, len);
+	return __copy_tofrom_user(to, from, len);
 }
 
-#define __copy_in_user(to, from, len)	__copy_from_user(to, from, len)
+#define __copy_in_user(to, from, len)	__copy_tofrom_user(to, from, len)
 
 static inline unsigned long
 copy_in_user(void *to, const void *from, unsigned long len)
 {
 	if (access_ok(VERIFY_READ, from, len) &&
 		      access_ok(VERFITY_WRITE, to, len))
-		return copy_from_user(to, from, len);
+		return __copy_tofrom_user(to, from, len);
 }
 
 /*
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sh/include/asm/uaccess_64.h linux-libre-4.4.107-gnu/arch/sh/include/asm/uaccess_64.h
--- linux-libre-4.4-gnu/arch/sh/include/asm/uaccess_64.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sh/include/asm/uaccess_64.h	2017-12-20 04:05:01.000000000 -0500
@@ -24,6 +24,7 @@
 #define __get_user_size(x,ptr,size,retval)			\
 do {								\
 	retval = 0;						\
+	x = 0;							\
 	switch (size) {						\
 	case 1:							\
 		retval = __get_user_asm_b((void *)&x,		\
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sh/include/asm/uaccess.h linux-libre-4.4.107-gnu/arch/sh/include/asm/uaccess.h
--- linux-libre-4.4-gnu/arch/sh/include/asm/uaccess.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sh/include/asm/uaccess.h	2017-12-20 04:05:01.000000000 -0500
@@ -151,7 +151,10 @@ copy_from_user(void *to, const void __us
 	__kernel_size_t __copy_size = (__kernel_size_t) n;
 
 	if (__copy_size && __access_ok(__copy_from, __copy_size))
-		return __copy_user(to, from, __copy_size);
+		__copy_size = __copy_user(to, from, __copy_size);
+
+	if (unlikely(__copy_size))
+		memset(to + (n - __copy_size), 0, __copy_size);
 
 	return __copy_size;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sh/kernel/cpu/sh3/setup-sh770x.c linux-libre-4.4.107-gnu/arch/sh/kernel/cpu/sh3/setup-sh770x.c
--- linux-libre-4.4-gnu/arch/sh/kernel/cpu/sh3/setup-sh770x.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sh/kernel/cpu/sh3/setup-sh770x.c	2017-12-20 04:05:01.000000000 -0500
@@ -165,7 +165,6 @@ static struct plat_sci_port scif2_platfo
 	.scscr		= SCSCR_TE | SCSCR_RE,
 	.type		= PORT_IRDA,
 	.ops		= &sh770x_sci_port_ops,
-	.regshift	= 1,
 };
 
 static struct resource scif2_resources[] = {
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sh/mm/kmap.c linux-libre-4.4.107-gnu/arch/sh/mm/kmap.c
--- linux-libre-4.4-gnu/arch/sh/mm/kmap.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sh/mm/kmap.c	2017-12-20 04:05:01.000000000 -0500
@@ -36,6 +36,7 @@ void *kmap_coherent(struct page *page, u
 
 	BUG_ON(!test_bit(PG_dcache_clean, &page->flags));
 
+	preempt_disable();
 	pagefault_disable();
 
 	idx = FIX_CMAP_END -
@@ -64,4 +65,5 @@ void kunmap_coherent(void *kvaddr)
 	}
 
 	pagefault_enable();
+	preempt_enable();
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sh/mm/mmap.c linux-libre-4.4.107-gnu/arch/sh/mm/mmap.c
--- linux-libre-4.4-gnu/arch/sh/mm/mmap.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sh/mm/mmap.c	2017-12-20 04:05:01.000000000 -0500
@@ -63,7 +63,7 @@ unsigned long arch_get_unmapped_area(str
 
 		vma = find_vma(mm, addr);
 		if (TASK_SIZE - len >= addr &&
-		    (!vma || addr + len <= vma->vm_start))
+		    (!vma || addr + len <= vm_start_gap(vma)))
 			return addr;
 	}
 
@@ -113,7 +113,7 @@ arch_get_unmapped_area_topdown(struct fi
 
 		vma = find_vma(mm, addr);
 		if (TASK_SIZE - len >= addr &&
-		    (!vma || addr + len <= vma->vm_start))
+		    (!vma || addr + len <= vm_start_gap(vma)))
 			return addr;
 	}
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/include/asm/head_64.h linux-libre-4.4.107-gnu/arch/sparc/include/asm/head_64.h
--- linux-libre-4.4-gnu/arch/sparc/include/asm/head_64.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sparc/include/asm/head_64.h	2017-12-20 04:05:01.000000000 -0500
@@ -15,6 +15,10 @@
 
 #define	PTREGS_OFF	(STACK_BIAS + STACKFRAME_SZ)
 
+#define	RTRAP_PSTATE		(PSTATE_TSO|PSTATE_PEF|PSTATE_PRIV|PSTATE_IE)
+#define	RTRAP_PSTATE_IRQOFF	(PSTATE_TSO|PSTATE_PEF|PSTATE_PRIV)
+#define RTRAP_PSTATE_AG_IRQOFF	(PSTATE_TSO|PSTATE_PEF|PSTATE_PRIV|PSTATE_AG)
+
 #define __CHEETAH_ID	0x003e0014
 #define __JALAPENO_ID	0x003e0016
 #define __SERRANO_ID	0x003e0022
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/include/asm/mmu_64.h linux-libre-4.4.107-gnu/arch/sparc/include/asm/mmu_64.h
--- linux-libre-4.4-gnu/arch/sparc/include/asm/mmu_64.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sparc/include/asm/mmu_64.h	2017-12-20 04:05:01.000000000 -0500
@@ -52,7 +52,7 @@
 #define CTX_NR_MASK		TAG_CONTEXT_BITS
 #define CTX_HW_MASK		(CTX_NR_MASK | CTX_PGSZ_MASK)
 
-#define CTX_FIRST_VERSION	((_AC(1,UL) << CTX_VERSION_SHIFT) + _AC(1,UL))
+#define CTX_FIRST_VERSION	BIT(CTX_VERSION_SHIFT)
 #define CTX_VALID(__ctx)	\
 	 (!(((__ctx.sparc64_ctx_val) ^ tlb_context_cache) & CTX_VERSION_MASK))
 #define CTX_HWBITS(__ctx)	((__ctx.sparc64_ctx_val) & CTX_HW_MASK)
@@ -92,7 +92,8 @@ struct tsb_config {
 typedef struct {
 	spinlock_t		lock;
 	unsigned long		sparc64_ctx_val;
-	unsigned long		huge_pte_count;
+	unsigned long		hugetlb_pte_count;
+	unsigned long		thp_pte_count;
 	struct tsb_config	tsb_block[MM_NUM_TSBS];
 	struct hv_tsb_descr	tsb_descr[MM_NUM_TSBS];
 } mm_context_t;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/include/asm/mmu_context_64.h linux-libre-4.4.107-gnu/arch/sparc/include/asm/mmu_context_64.h
--- linux-libre-4.4-gnu/arch/sparc/include/asm/mmu_context_64.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sparc/include/asm/mmu_context_64.h	2017-12-20 04:05:01.000000000 -0500
@@ -17,22 +17,19 @@ extern spinlock_t ctx_alloc_lock;
 extern unsigned long tlb_context_cache;
 extern unsigned long mmu_context_bmap[];
 
+DECLARE_PER_CPU(struct mm_struct *, per_cpu_secondary_mm);
 void get_new_mmu_context(struct mm_struct *mm);
-#ifdef CONFIG_SMP
-void smp_new_mmu_context_version(void);
-#else
-#define smp_new_mmu_context_version() do { } while (0)
-#endif
-
 int init_new_context(struct task_struct *tsk, struct mm_struct *mm);
 void destroy_context(struct mm_struct *mm);
 
 void __tsb_context_switch(unsigned long pgd_pa,
 			  struct tsb_config *tsb_base,
 			  struct tsb_config *tsb_huge,
-			  unsigned long tsb_descr_pa);
+			  unsigned long tsb_descr_pa,
+			  unsigned long secondary_ctx);
 
-static inline void tsb_context_switch(struct mm_struct *mm)
+static inline void tsb_context_switch_ctx(struct mm_struct *mm,
+					  unsigned long ctx)
 {
 	__tsb_context_switch(__pa(mm->pgd),
 			     &mm->context.tsb_block[0],
@@ -43,9 +40,12 @@ static inline void tsb_context_switch(st
 #else
 			     NULL
 #endif
-			     , __pa(&mm->context.tsb_descr[0]));
+			     , __pa(&mm->context.tsb_descr[0]),
+			     ctx);
 }
 
+#define tsb_context_switch(X) tsb_context_switch_ctx(X, 0)
+
 void tsb_grow(struct mm_struct *mm,
 	      unsigned long tsb_index,
 	      unsigned long mm_rss);
@@ -74,8 +74,9 @@ void __flush_tlb_mm(unsigned long, unsig
 static inline void switch_mm(struct mm_struct *old_mm, struct mm_struct *mm, struct task_struct *tsk)
 {
 	unsigned long ctx_valid, flags;
-	int cpu;
+	int cpu = smp_processor_id();
 
+	per_cpu(per_cpu_secondary_mm, cpu) = mm;
 	if (unlikely(mm == &init_mm))
 		return;
 
@@ -114,14 +115,12 @@ static inline void switch_mm(struct mm_s
 	 * cpu0 to update it's TSB because at that point the cpu_vm_mask
 	 * only had cpu1 set in it.
 	 */
-	load_secondary_context(mm);
-	tsb_context_switch(mm);
+	tsb_context_switch_ctx(mm, CTX_HWBITS(mm->context));
 
 	/* Any time a processor runs a context on an address space
 	 * for the first time, we must flush that context out of the
 	 * local TLB.
 	 */
-	cpu = smp_processor_id();
 	if (!ctx_valid || !cpumask_test_cpu(cpu, mm_cpumask(mm))) {
 		cpumask_set_cpu(cpu, mm_cpumask(mm));
 		__flush_tlb_mm(CTX_HWBITS(mm->context),
@@ -131,26 +130,7 @@ static inline void switch_mm(struct mm_s
 }
 
 #define deactivate_mm(tsk,mm)	do { } while (0)
-
-/* Activate a new MM instance for the current task. */
-static inline void activate_mm(struct mm_struct *active_mm, struct mm_struct *mm)
-{
-	unsigned long flags;
-	int cpu;
-
-	spin_lock_irqsave(&mm->context.lock, flags);
-	if (!CTX_VALID(mm->context))
-		get_new_mmu_context(mm);
-	cpu = smp_processor_id();
-	if (!cpumask_test_cpu(cpu, mm_cpumask(mm)))
-		cpumask_set_cpu(cpu, mm_cpumask(mm));
-
-	load_secondary_context(mm);
-	__flush_tlb_mm(CTX_HWBITS(mm->context), SECONDARY_CONTEXT);
-	tsb_context_switch(mm);
-	spin_unlock_irqrestore(&mm->context.lock, flags);
-}
-
+#define activate_mm(active_mm, mm) switch_mm(active_mm, mm, NULL)
 #endif /* !(__ASSEMBLY__) */
 
 #endif /* !(__SPARC64_MMU_CONTEXT_H) */
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/include/asm/pgtable_32.h linux-libre-4.4.107-gnu/arch/sparc/include/asm/pgtable_32.h
--- linux-libre-4.4-gnu/arch/sparc/include/asm/pgtable_32.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sparc/include/asm/pgtable_32.h	2017-12-20 04:05:01.000000000 -0500
@@ -91,9 +91,9 @@ extern unsigned long pfn_base;
  * ZERO_PAGE is a global shared page that is always zero: used
  * for zero-mapped memory areas etc..
  */
-extern unsigned long empty_zero_page;
+extern unsigned long empty_zero_page[PAGE_SIZE / sizeof(unsigned long)];
 
-#define ZERO_PAGE(vaddr) (virt_to_page(&empty_zero_page))
+#define ZERO_PAGE(vaddr) (virt_to_page(empty_zero_page))
 
 /*
  * In general all page table modifications should use the V8 atomic
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/include/asm/pgtable_64.h linux-libre-4.4.107-gnu/arch/sparc/include/asm/pgtable_64.h
--- linux-libre-4.4-gnu/arch/sparc/include/asm/pgtable_64.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sparc/include/asm/pgtable_64.h	2017-12-20 04:05:01.000000000 -0500
@@ -375,7 +375,7 @@ static inline pgprot_t pgprot_noncached(
 #define pgprot_noncached pgprot_noncached
 
 #if defined(CONFIG_HUGETLB_PAGE) || defined(CONFIG_TRANSPARENT_HUGEPAGE)
-static inline pte_t pte_mkhuge(pte_t pte)
+static inline unsigned long __pte_huge_mask(void)
 {
 	unsigned long mask;
 
@@ -390,8 +390,19 @@ static inline pte_t pte_mkhuge(pte_t pte
 	: "=r" (mask)
 	: "i" (_PAGE_SZHUGE_4U), "i" (_PAGE_SZHUGE_4V));
 
-	return __pte(pte_val(pte) | mask);
+	return mask;
 }
+
+static inline pte_t pte_mkhuge(pte_t pte)
+{
+	return __pte(pte_val(pte) | __pte_huge_mask());
+}
+
+static inline bool is_hugetlb_pte(pte_t pte)
+{
+	return !!(pte_val(pte) & __pte_huge_mask());
+}
+
 #ifdef CONFIG_TRANSPARENT_HUGEPAGE
 static inline pmd_t pmd_mkhuge(pmd_t pmd)
 {
@@ -403,6 +414,11 @@ static inline pmd_t pmd_mkhuge(pmd_t pmd
 	return __pmd(pte_val(pte));
 }
 #endif
+#else
+static inline bool is_hugetlb_pte(pte_t pte)
+{
+	return false;
+}
 #endif
 
 static inline pte_t pte_mkdirty(pte_t pte)
@@ -652,26 +668,27 @@ static inline unsigned long pmd_pfn(pmd_
 	return pte_pfn(pte);
 }
 
-#ifdef CONFIG_TRANSPARENT_HUGEPAGE
-static inline unsigned long pmd_dirty(pmd_t pmd)
+#define __HAVE_ARCH_PMD_WRITE
+static inline unsigned long pmd_write(pmd_t pmd)
 {
 	pte_t pte = __pte(pmd_val(pmd));
 
-	return pte_dirty(pte);
+	return pte_write(pte);
 }
 
-static inline unsigned long pmd_young(pmd_t pmd)
+#ifdef CONFIG_TRANSPARENT_HUGEPAGE
+static inline unsigned long pmd_dirty(pmd_t pmd)
 {
 	pte_t pte = __pte(pmd_val(pmd));
 
-	return pte_young(pte);
+	return pte_dirty(pte);
 }
 
-static inline unsigned long pmd_write(pmd_t pmd)
+static inline unsigned long pmd_young(pmd_t pmd)
 {
 	pte_t pte = __pte(pmd_val(pmd));
 
-	return pte_write(pte);
+	return pte_young(pte);
 }
 
 static inline unsigned long pmd_trans_huge(pmd_t pmd)
@@ -865,6 +882,19 @@ static inline unsigned long pud_pfn(pud_
 void tlb_batch_add(struct mm_struct *mm, unsigned long vaddr,
 		   pte_t *ptep, pte_t orig, int fullmm);
 
+static void maybe_tlb_batch_add(struct mm_struct *mm, unsigned long vaddr,
+				pte_t *ptep, pte_t orig, int fullmm)
+{
+	/* It is more efficient to let flush_tlb_kernel_range()
+	 * handle init_mm tlb flushes.
+	 *
+	 * SUN4V NOTE: _PAGE_VALID is the same value in both the SUN4U
+	 *             and SUN4V pte layout, so this inline test is fine.
+	 */
+	if (likely(mm != &init_mm) && pte_accessible(mm, orig))
+		tlb_batch_add(mm, vaddr, ptep, orig, fullmm);
+}
+
 #define __HAVE_ARCH_PMDP_HUGE_GET_AND_CLEAR
 static inline pmd_t pmdp_huge_get_and_clear(struct mm_struct *mm,
 					    unsigned long addr,
@@ -881,15 +911,7 @@ static inline void __set_pte_at(struct m
 	pte_t orig = *ptep;
 
 	*ptep = pte;
-
-	/* It is more efficient to let flush_tlb_kernel_range()
-	 * handle init_mm tlb flushes.
-	 *
-	 * SUN4V NOTE: _PAGE_VALID is the same value in both the SUN4U
-	 *             and SUN4V pte layout, so this inline test is fine.
-	 */
-	if (likely(mm != &init_mm) && pte_accessible(mm, orig))
-		tlb_batch_add(mm, addr, ptep, orig, fullmm);
+	maybe_tlb_batch_add(mm, addr, ptep, orig, fullmm);
 }
 
 #define set_pte_at(mm,addr,ptep,pte)	\
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/include/asm/pil.h linux-libre-4.4.107-gnu/arch/sparc/include/asm/pil.h
--- linux-libre-4.4-gnu/arch/sparc/include/asm/pil.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sparc/include/asm/pil.h	2017-12-20 04:05:01.000000000 -0500
@@ -20,7 +20,6 @@
 #define PIL_SMP_CALL_FUNC	1
 #define PIL_SMP_RECEIVE_SIGNAL	2
 #define PIL_SMP_CAPTURE		3
-#define PIL_SMP_CTX_NEW_VERSION	4
 #define PIL_DEVICE_IRQ		5
 #define PIL_SMP_CALL_FUNC_SNGL	6
 #define PIL_DEFERRED_PCR_WORK	7
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/include/asm/setup.h linux-libre-4.4.107-gnu/arch/sparc/include/asm/setup.h
--- linux-libre-4.4-gnu/arch/sparc/include/asm/setup.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sparc/include/asm/setup.h	2017-12-20 04:05:01.000000000 -0500
@@ -16,7 +16,7 @@ extern char reboot_command[];
  */
 extern unsigned char boot_cpu_id;
 
-extern unsigned long empty_zero_page;
+extern unsigned long empty_zero_page[PAGE_SIZE / sizeof(unsigned long)];
 
 extern int serial_console;
 static inline int con_is_present(void)
@@ -59,8 +59,11 @@ extern atomic_t dcpage_flushes;
 extern atomic_t dcpage_flushes_xcall;
 
 extern int sysctl_tsb_ratio;
-#endif
 
+#ifdef CONFIG_SERIAL_SUNHV
+void sunhv_migrate_hvcons_irq(int cpu);
+#endif
+#endif
 void sun_do_break(void);
 extern int stop_a_enabled;
 extern int scons_pwroff;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/include/asm/tlbflush_64.h linux-libre-4.4.107-gnu/arch/sparc/include/asm/tlbflush_64.h
--- linux-libre-4.4-gnu/arch/sparc/include/asm/tlbflush_64.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sparc/include/asm/tlbflush_64.h	2017-12-20 04:05:01.000000000 -0500
@@ -8,6 +8,7 @@
 #define TLB_BATCH_NR	192
 
 struct tlb_batch {
+	bool huge;
 	struct mm_struct *mm;
 	unsigned long tlb_nr;
 	unsigned long active;
@@ -16,7 +17,7 @@ struct tlb_batch {
 
 void flush_tsb_kernel_range(unsigned long start, unsigned long end);
 void flush_tsb_user(struct tlb_batch *tb);
-void flush_tsb_user_page(struct mm_struct *mm, unsigned long vaddr);
+void flush_tsb_user_page(struct mm_struct *mm, unsigned long vaddr, bool huge);
 
 /* TLB flush operations. */
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/include/asm/trap_block.h linux-libre-4.4.107-gnu/arch/sparc/include/asm/trap_block.h
--- linux-libre-4.4-gnu/arch/sparc/include/asm/trap_block.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sparc/include/asm/trap_block.h	2017-12-20 04:05:01.000000000 -0500
@@ -54,6 +54,7 @@ extern struct trap_per_cpu trap_block[NR
 void init_cur_cpu_trap(struct thread_info *);
 void setup_tba(void);
 extern int ncpus_probed;
+extern u64 cpu_mondo_counter[NR_CPUS];
 
 unsigned long real_hard_smp_processor_id(void);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/include/asm/ttable.h linux-libre-4.4.107-gnu/arch/sparc/include/asm/ttable.h
--- linux-libre-4.4-gnu/arch/sparc/include/asm/ttable.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sparc/include/asm/ttable.h	2017-12-20 04:05:01.000000000 -0500
@@ -589,8 +589,8 @@ user_rtt_fill_64bit:					\
 	 restored;					\
 	nop; nop; nop; nop; nop; nop;			\
 	nop; nop; nop; nop; nop;			\
-	ba,a,pt	%xcc, user_rtt_fill_fixup;		\
-	ba,a,pt	%xcc, user_rtt_fill_fixup;		\
+	ba,a,pt	%xcc, user_rtt_fill_fixup_dax;		\
+	ba,a,pt	%xcc, user_rtt_fill_fixup_mna;		\
 	ba,a,pt	%xcc, user_rtt_fill_fixup;
 
 
@@ -652,8 +652,8 @@ user_rtt_fill_32bit:					\
 	 restored;					\
 	nop; nop; nop; nop; nop;			\
 	nop; nop; nop;					\
-	ba,a,pt	%xcc, user_rtt_fill_fixup;		\
-	ba,a,pt	%xcc, user_rtt_fill_fixup;		\
+	ba,a,pt	%xcc, user_rtt_fill_fixup_dax;		\
+	ba,a,pt	%xcc, user_rtt_fill_fixup_mna;		\
 	ba,a,pt	%xcc, user_rtt_fill_fixup;
 
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/include/asm/uaccess_32.h linux-libre-4.4.107-gnu/arch/sparc/include/asm/uaccess_32.h
--- linux-libre-4.4-gnu/arch/sparc/include/asm/uaccess_32.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sparc/include/asm/uaccess_32.h	2017-12-20 04:05:01.000000000 -0500
@@ -328,8 +328,10 @@ static inline unsigned long copy_from_us
 {
 	if (n && __access_ok((unsigned long) from, n))
 		return __copy_user((__force void __user *) to, from, n);
-	else
+	else {
+		memset(to, 0, n);
 		return n;
+	}
 }
 
 static inline unsigned long __copy_from_user(void *to, const void __user *from, unsigned long n)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/include/asm/uaccess_64.h linux-libre-4.4.107-gnu/arch/sparc/include/asm/uaccess_64.h
--- linux-libre-4.4-gnu/arch/sparc/include/asm/uaccess_64.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sparc/include/asm/uaccess_64.h	2017-12-20 04:05:01.000000000 -0500
@@ -98,7 +98,6 @@ struct exception_table_entry {
         unsigned int insn, fixup;
 };
 
-void __ret_efault(void);
 void __retl_efault(void);
 
 /* Uh, these should become the main single-value transfer routines..
@@ -179,20 +178,6 @@ int __put_user_bad(void);
 	 __gu_ret;							     \
 })
 
-#define __get_user_nocheck_ret(data, addr, size, type, retval) ({	\
-	register unsigned long __gu_val __asm__ ("l1");			\
-	switch (size) {							\
-	case 1: __get_user_asm_ret(__gu_val, ub, addr, retval); break;	\
-	case 2: __get_user_asm_ret(__gu_val, uh, addr, retval); break;	\
-	case 4: __get_user_asm_ret(__gu_val, uw, addr, retval); break;	\
-	case 8: __get_user_asm_ret(__gu_val, x, addr, retval); break;	\
-	default:							\
-		if (__get_user_bad())					\
-			return retval;					\
-	}								\
-	data = (__force type) __gu_val;					\
-})
-
 #define __get_user_asm(x, size, addr, ret)				\
 __asm__ __volatile__(							\
 		"/* Get user asm, inline. */\n"				\
@@ -214,80 +199,35 @@ __asm__ __volatile__(							\
 	       : "=r" (ret), "=r" (x) : "r" (__m(addr)),		\
 		 "i" (-EFAULT))
 
-#define __get_user_asm_ret(x, size, addr, retval)			\
-if (__builtin_constant_p(retval) && retval == -EFAULT)			\
-	__asm__ __volatile__(						\
-		"/* Get user asm ret, inline. */\n"			\
-	"1:\t"	"ld"#size "a [%1] %%asi, %0\n\n\t"			\
-		".section __ex_table,\"a\"\n\t"				\
-		".align	4\n\t"						\
-		".word	1b,__ret_efault\n\n\t"				\
-		".previous\n\t"						\
-	       : "=r" (x) : "r" (__m(addr)));				\
-else									\
-	__asm__ __volatile__(						\
-		"/* Get user asm ret, inline. */\n"			\
-	"1:\t"	"ld"#size "a [%1] %%asi, %0\n\n\t"			\
-		".section .fixup,#alloc,#execinstr\n\t"			\
-		".align	4\n"						\
-	"3:\n\t"							\
-		"ret\n\t"						\
-		" restore %%g0, %2, %%o0\n\n\t"				\
-		".previous\n\t"						\
-		".section __ex_table,\"a\"\n\t"				\
-		".align	4\n\t"						\
-		".word	1b, 3b\n\n\t"					\
-		".previous\n\t"						\
-	       : "=r" (x) : "r" (__m(addr)), "i" (retval))
-
 int __get_user_bad(void);
 
 unsigned long __must_check ___copy_from_user(void *to,
 					     const void __user *from,
 					     unsigned long size);
-unsigned long copy_from_user_fixup(void *to, const void __user *from,
-				   unsigned long size);
 static inline unsigned long __must_check
 copy_from_user(void *to, const void __user *from, unsigned long size)
 {
-	unsigned long ret = ___copy_from_user(to, from, size);
-
-	if (unlikely(ret))
-		ret = copy_from_user_fixup(to, from, size);
-
-	return ret;
+	return ___copy_from_user(to, from, size);
 }
 #define __copy_from_user copy_from_user
 
 unsigned long __must_check ___copy_to_user(void __user *to,
 					   const void *from,
 					   unsigned long size);
-unsigned long copy_to_user_fixup(void __user *to, const void *from,
-				 unsigned long size);
 static inline unsigned long __must_check
 copy_to_user(void __user *to, const void *from, unsigned long size)
 {
-	unsigned long ret = ___copy_to_user(to, from, size);
-
-	if (unlikely(ret))
-		ret = copy_to_user_fixup(to, from, size);
-	return ret;
+	return ___copy_to_user(to, from, size);
 }
 #define __copy_to_user copy_to_user
 
 unsigned long __must_check ___copy_in_user(void __user *to,
 					   const void __user *from,
 					   unsigned long size);
-unsigned long copy_in_user_fixup(void __user *to, void __user *from,
-				 unsigned long size);
 static inline unsigned long __must_check
 copy_in_user(void __user *to, void __user *from, unsigned long size)
 {
-	unsigned long ret = ___copy_in_user(to, from, size);
-
-	if (unlikely(ret))
-		ret = copy_in_user_fixup(to, from, size);
-	return ret;
+	return ___copy_in_user(to, from, size);
 }
 #define __copy_in_user copy_in_user
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/include/asm/vio.h linux-libre-4.4.107-gnu/arch/sparc/include/asm/vio.h
--- linux-libre-4.4-gnu/arch/sparc/include/asm/vio.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sparc/include/asm/vio.h	2017-12-20 04:05:01.000000000 -0500
@@ -327,6 +327,7 @@ struct vio_dev {
 	int			compat_len;
 
 	u64			dev_no;
+	u64			id;
 
 	unsigned long		channel_id;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/Kconfig linux-libre-4.4.107-gnu/arch/sparc/Kconfig
--- linux-libre-4.4-gnu/arch/sparc/Kconfig	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sparc/Kconfig	2017-12-20 04:05:01.000000000 -0500
@@ -182,9 +182,9 @@ config NR_CPUS
 	int "Maximum number of CPUs"
 	depends on SMP
 	range 2 32 if SPARC32
-	range 2 1024 if SPARC64
+	range 2 4096 if SPARC64
 	default 32 if SPARC32
-	default 64 if SPARC64
+	default 4096 if SPARC64
 
 source kernel/Kconfig.hz
 
@@ -549,9 +549,6 @@ config SYSVIPC_COMPAT
 	depends on COMPAT && SYSVIPC
 	default y
 
-config KEYS_COMPAT
-	def_bool y if COMPAT && KEYS
-
 endmenu
 
 source "net/Kconfig"
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/kernel/cherrs.S linux-libre-4.4.107-gnu/arch/sparc/kernel/cherrs.S
--- linux-libre-4.4-gnu/arch/sparc/kernel/cherrs.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sparc/kernel/cherrs.S	2017-12-20 04:05:01.000000000 -0500
@@ -214,8 +214,7 @@ do_dcpe_tl1_nonfatal:	/* Ok we may use i
 	subcc		%g1, %g2, %g1		! Next cacheline
 	bge,pt		%icc, 1b
 	 nop
-	ba,pt		%xcc, dcpe_icpe_tl1_common
-	 nop
+	ba,a,pt		%xcc, dcpe_icpe_tl1_common
 
 do_dcpe_tl1_fatal:
 	sethi		%hi(1f), %g7
@@ -224,8 +223,7 @@ do_dcpe_tl1_fatal:
 	mov		0x2, %o0
 	call		cheetah_plus_parity_error
 	 add		%sp, PTREGS_OFF, %o1
-	ba,pt		%xcc, rtrap
-	 nop
+	ba,a,pt		%xcc, rtrap
 	.size		do_dcpe_tl1,.-do_dcpe_tl1
 
 	.globl		do_icpe_tl1
@@ -259,8 +257,7 @@ do_icpe_tl1_nonfatal:	/* Ok we may use i
 	subcc		%g1, %g2, %g1
 	bge,pt		%icc, 1b
 	 nop
-	ba,pt		%xcc, dcpe_icpe_tl1_common
-	 nop
+	ba,a,pt		%xcc, dcpe_icpe_tl1_common
 
 do_icpe_tl1_fatal:
 	sethi		%hi(1f), %g7
@@ -269,8 +266,7 @@ do_icpe_tl1_fatal:
 	mov		0x3, %o0
 	call		cheetah_plus_parity_error
 	 add		%sp, PTREGS_OFF, %o1
-	ba,pt		%xcc, rtrap
-	 nop
+	ba,a,pt		%xcc, rtrap
 	.size		do_icpe_tl1,.-do_icpe_tl1
 	
 	.type		dcpe_icpe_tl1_common,#function
@@ -456,7 +452,7 @@ __cheetah_log_error:
 	 cmp		%g2, 0x63
 	be		c_cee
 	 nop
-	ba,pt		%xcc, c_deferred
+	ba,a,pt		%xcc, c_deferred
 	.size		__cheetah_log_error,.-__cheetah_log_error
 
 	/* Cheetah FECC trap handling, we get here from tl{0,1}_fecc
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/kernel/dtlb_prot.S linux-libre-4.4.107-gnu/arch/sparc/kernel/dtlb_prot.S
--- linux-libre-4.4-gnu/arch/sparc/kernel/dtlb_prot.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sparc/kernel/dtlb_prot.S	2017-12-20 04:05:01.000000000 -0500
@@ -25,13 +25,13 @@
 
 /* PROT ** ICACHE line 2: More real fault processing */
 	ldxa		[%g4] ASI_DMMU, %g5		! Put tagaccess in %g5
+	srlx		%g5, PAGE_SHIFT, %g5
+	sllx		%g5, PAGE_SHIFT, %g5		! Clear context ID bits
 	bgu,pn		%xcc, winfix_trampoline		! Yes, perform winfixup
 	 mov		FAULT_CODE_DTLB | FAULT_CODE_WRITE, %g4
 	ba,pt		%xcc, sparc64_realfault_common	! Nope, normal fault
 	 nop
 	nop
-	nop
-	nop
 
 /* PROT ** ICACHE line 3: Unused...	*/
 	nop
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/kernel/entry.S linux-libre-4.4.107-gnu/arch/sparc/kernel/entry.S
--- linux-libre-4.4-gnu/arch/sparc/kernel/entry.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sparc/kernel/entry.S	2017-12-20 04:05:01.000000000 -0500
@@ -948,7 +948,24 @@ linux_syscall_trace:
 	cmp	%o0, 0
 	bne	3f
 	 mov	-ENOSYS, %o0
+
+	/* Syscall tracing can modify the registers.  */
+	ld	[%sp + STACKFRAME_SZ + PT_G1], %g1
+	sethi	%hi(sys_call_table), %l7
+	ld	[%sp + STACKFRAME_SZ + PT_I0], %i0
+	or	%l7, %lo(sys_call_table), %l7
+	ld	[%sp + STACKFRAME_SZ + PT_I1], %i1
+	ld	[%sp + STACKFRAME_SZ + PT_I2], %i2
+	ld	[%sp + STACKFRAME_SZ + PT_I3], %i3
+	ld	[%sp + STACKFRAME_SZ + PT_I4], %i4
+	ld	[%sp + STACKFRAME_SZ + PT_I5], %i5
+	cmp	%g1, NR_syscalls
+	bgeu	3f
+	 mov	-ENOSYS, %o0
+
+	sll	%g1, 2, %l4
 	mov	%i0, %o0
+	ld	[%l7 + %l4], %l7
 	mov	%i1, %o1
 	mov	%i2, %o2
 	mov	%i3, %o3
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/kernel/fpu_traps.S linux-libre-4.4.107-gnu/arch/sparc/kernel/fpu_traps.S
--- linux-libre-4.4-gnu/arch/sparc/kernel/fpu_traps.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sparc/kernel/fpu_traps.S	2017-12-20 04:05:01.000000000 -0500
@@ -100,8 +100,8 @@ do_fpdis:
 	fmuld		%f0, %f2, %f26
 	faddd		%f0, %f2, %f28
 	fmuld		%f0, %f2, %f30
-	b,pt		%xcc, fpdis_exit
-	 nop
+	ba,a,pt		%xcc, fpdis_exit
+
 2:	andcc		%g5, FPRS_DU, %g0
 	bne,pt		%icc, 3f
 	 fzero		%f32
@@ -144,8 +144,8 @@ do_fpdis:
 	fmuld		%f32, %f34, %f58
 	faddd		%f32, %f34, %f60
 	fmuld		%f32, %f34, %f62
-	ba,pt		%xcc, fpdis_exit
-	 nop
+	ba,a,pt		%xcc, fpdis_exit
+
 3:	mov		SECONDARY_CONTEXT, %g3
 	add		%g6, TI_FPREGS, %g1
 
@@ -197,8 +197,7 @@ fpdis_exit2:
 fp_other_bounce:
 	call		do_fpother
 	 add		%sp, PTREGS_OFF, %o0
-	ba,pt		%xcc, rtrap
-	 nop
+	ba,a,pt		%xcc, rtrap
 	.size		fp_other_bounce,.-fp_other_bounce
 
 	.align		32
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/kernel/head_64.S linux-libre-4.4.107-gnu/arch/sparc/kernel/head_64.S
--- linux-libre-4.4-gnu/arch/sparc/kernel/head_64.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sparc/kernel/head_64.S	2017-12-20 04:05:01.000000000 -0500
@@ -461,9 +461,8 @@ sun4v_chip_type:
 	subcc	%g3, 1, %g3
 	bne,pt	%xcc, 41b
 	add	%g1, 1, %g1
-	mov	SUN4V_CHIP_SPARC64X, %g4
 	ba,pt	%xcc, 5f
-	nop
+	 mov	SUN4V_CHIP_SPARC64X, %g4
 
 49:
 	mov	SUN4V_CHIP_UNKNOWN, %g4
@@ -548,8 +547,7 @@ sun4u_init:
 	stxa		%g0, [%g7] ASI_DMMU
 	membar	#Sync
 
-	ba,pt		%xcc, sun4u_continue
-	 nop
+	ba,a,pt		%xcc, sun4u_continue
 
 sun4v_init:
 	/* Set ctx 0 */
@@ -560,14 +558,12 @@ sun4v_init:
 	mov		SECONDARY_CONTEXT, %g7
 	stxa		%g0, [%g7] ASI_MMU
 	membar		#Sync
-	ba,pt		%xcc, niagara_tlb_fixup
-	 nop
+	ba,a,pt		%xcc, niagara_tlb_fixup
 
 sun4u_continue:
 	BRANCH_IF_ANY_CHEETAH(g1, g7, cheetah_tlb_fixup)
 
-	ba,pt	%xcc, spitfire_tlb_fixup
-	 nop
+	ba,a,pt	%xcc, spitfire_tlb_fixup
 
 niagara_tlb_fixup:
 	mov	3, %g2		/* Set TLB type to hypervisor. */
@@ -639,8 +635,7 @@ niagara_patch:
 	call	hypervisor_patch_cachetlbops
 	 nop
 
-	ba,pt	%xcc, tlb_fixup_done
-	 nop
+	ba,a,pt	%xcc, tlb_fixup_done
 
 cheetah_tlb_fixup:
 	mov	2, %g2		/* Set TLB type to cheetah+. */
@@ -659,8 +654,7 @@ cheetah_tlb_fixup:
 	call	cheetah_patch_cachetlbops
 	 nop
 
-	ba,pt	%xcc, tlb_fixup_done
-	 nop
+	ba,a,pt	%xcc, tlb_fixup_done
 
 spitfire_tlb_fixup:
 	/* Set TLB type to spitfire. */
@@ -782,8 +776,7 @@ setup_trap_table:
 	call	%o1
 	 add	%sp, (2047 + 128), %o0
 
-	ba,pt	%xcc, 2f
-	 nop
+	ba,a,pt	%xcc, 2f
 
 1:	sethi	%hi(sparc64_ttable_tl0), %o0
 	set	prom_set_trap_table_name, %g2
@@ -822,8 +815,7 @@ setup_trap_table:
 
 	BRANCH_IF_ANY_CHEETAH(o2, o3, 1f)
 
-	ba,pt	%xcc, 2f
-	 nop
+	ba,a,pt	%xcc, 2f
 
 	/* Disable STICK_INT interrupts. */
 1:
@@ -930,47 +922,11 @@ prom_tba:	.xword	0
 tlb_type:	.word	0	/* Must NOT end up in BSS */
 	.section	".fixup",#alloc,#execinstr
 
-	.globl	__ret_efault, __retl_efault, __ret_one, __retl_one
-ENTRY(__ret_efault)
-	ret
-	 restore %g0, -EFAULT, %o0
-ENDPROC(__ret_efault)
-
 ENTRY(__retl_efault)
 	retl
 	 mov	-EFAULT, %o0
 ENDPROC(__retl_efault)
 
-ENTRY(__retl_one)
-	retl
-	 mov	1, %o0
-ENDPROC(__retl_one)
-
-ENTRY(__retl_one_fp)
-	VISExitHalf
-	retl
-	 mov	1, %o0
-ENDPROC(__retl_one_fp)
-
-ENTRY(__ret_one_asi)
-	wr	%g0, ASI_AIUS, %asi
-	ret
-	 restore %g0, 1, %o0
-ENDPROC(__ret_one_asi)
-
-ENTRY(__retl_one_asi)
-	wr	%g0, ASI_AIUS, %asi
-	retl
-	 mov	1, %o0
-ENDPROC(__retl_one_asi)
-
-ENTRY(__retl_one_asi_fp)
-	wr	%g0, ASI_AIUS, %asi
-	VISExitHalf
-	retl
-	 mov	1, %o0
-ENDPROC(__retl_one_asi_fp)
-
 ENTRY(__retl_o1)
 	retl
 	 mov	%o1, %o0
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/kernel/irq_64.c linux-libre-4.4.107-gnu/arch/sparc/kernel/irq_64.c
--- linux-libre-4.4-gnu/arch/sparc/kernel/irq_64.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sparc/kernel/irq_64.c	2017-12-20 04:05:01.000000000 -0500
@@ -1034,17 +1034,26 @@ static void __init init_cpu_send_mondo_i
 {
 #ifdef CONFIG_SMP
 	unsigned long page;
+	void *mondo, *p;
 
-	BUILD_BUG_ON((NR_CPUS * sizeof(u16)) > (PAGE_SIZE - 64));
+	BUILD_BUG_ON((NR_CPUS * sizeof(u16)) > PAGE_SIZE);
+
+	/* Make sure mondo block is 64byte aligned */
+	p = kzalloc(127, GFP_KERNEL);
+	if (!p) {
+		prom_printf("SUN4V: Error, cannot allocate mondo block.\n");
+		prom_halt();
+	}
+	mondo = (void *)(((unsigned long)p + 63) & ~0x3f);
+	tb->cpu_mondo_block_pa = __pa(mondo);
 
 	page = get_zeroed_page(GFP_KERNEL);
 	if (!page) {
-		prom_printf("SUN4V: Error, cannot allocate cpu mondo page.\n");
+		prom_printf("SUN4V: Error, cannot allocate cpu list page.\n");
 		prom_halt();
 	}
 
-	tb->cpu_mondo_block_pa = __pa(page);
-	tb->cpu_list_pa = __pa(page + 64);
+	tb->cpu_list_pa = __pa(page);
 #endif
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/kernel/jump_label.c linux-libre-4.4.107-gnu/arch/sparc/kernel/jump_label.c
--- linux-libre-4.4-gnu/arch/sparc/kernel/jump_label.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sparc/kernel/jump_label.c	2017-12-20 04:05:01.000000000 -0500
@@ -13,19 +13,30 @@
 void arch_jump_label_transform(struct jump_entry *entry,
 			       enum jump_label_type type)
 {
-	u32 val;
 	u32 *insn = (u32 *) (unsigned long) entry->code;
+	u32 val;
 
 	if (type == JUMP_LABEL_JMP) {
 		s32 off = (s32)entry->target - (s32)entry->code;
+		bool use_v9_branch = false;
+
+		BUG_ON(off & 3);
 
 #ifdef CONFIG_SPARC64
-		/* ba,pt %xcc, . + (off << 2) */
-		val = 0x10680000 | ((u32) off >> 2);
-#else
-		/* ba . + (off << 2) */
-		val = 0x10800000 | ((u32) off >> 2);
+		if (off <= 0xfffff && off >= -0x100000)
+			use_v9_branch = true;
 #endif
+		if (use_v9_branch) {
+			/* WDISP19 - target is . + immed << 2 */
+			/* ba,pt %xcc, . + off */
+			val = 0x10680000 | (((u32) off >> 2) & 0x7ffff);
+		} else {
+			/* WDISP22 - target is . + immed << 2 */
+			BUG_ON(off > 0x7fffff);
+			BUG_ON(off < -0x800000);
+			/* ba . + off */
+			val = 0x10800000 | (((u32) off >> 2) & 0x3fffff);
+		}
 	} else {
 		val = 0x01000000;
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/kernel/kernel.h linux-libre-4.4.107-gnu/arch/sparc/kernel/kernel.h
--- linux-libre-4.4-gnu/arch/sparc/kernel/kernel.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sparc/kernel/kernel.h	2017-12-20 04:05:01.000000000 -0500
@@ -37,7 +37,6 @@ void handle_stdfmna(struct pt_regs *regs
 /* smp_64.c */
 void __irq_entry smp_call_function_client(int irq, struct pt_regs *regs);
 void __irq_entry smp_call_function_single_client(int irq, struct pt_regs *regs);
-void __irq_entry smp_new_mmu_context_version_client(int irq, struct pt_regs *regs);
 void __irq_entry smp_penguin_jailcell(int irq, struct pt_regs *regs);
 void __irq_entry smp_receive_signal_client(int irq, struct pt_regs *regs);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/kernel/ktlb.S linux-libre-4.4.107-gnu/arch/sparc/kernel/ktlb.S
--- linux-libre-4.4-gnu/arch/sparc/kernel/ktlb.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sparc/kernel/ktlb.S	2017-12-20 04:05:01.000000000 -0500
@@ -20,6 +20,10 @@ kvmap_itlb:
 	mov		TLB_TAG_ACCESS, %g4
 	ldxa		[%g4] ASI_IMMU, %g4
 
+	/* The kernel executes in context zero, therefore we do not
+	 * need to clear the context ID bits out of %g4 here.
+	 */
+
 	/* sun4v_itlb_miss branches here with the missing virtual
 	 * address already loaded into %g4
 	 */
@@ -128,6 +132,10 @@ kvmap_dtlb:
 	mov		TLB_TAG_ACCESS, %g4
 	ldxa		[%g4] ASI_DMMU, %g4
 
+	/* The kernel executes in context zero, therefore we do not
+	 * need to clear the context ID bits out of %g4 here.
+	 */
+
 	/* sun4v_dtlb_miss branches here with the missing virtual
 	 * address already loaded into %g4
 	 */
@@ -251,6 +259,10 @@ kvmap_dtlb_longpath:
 	nop
 	.previous
 
+	/* The kernel executes in context zero, therefore we do not
+	 * need to clear the context ID bits out of %g5 here.
+	 */
+
 	be,pt	%xcc, sparc64_realfault_common
 	 mov	FAULT_CODE_DTLB, %g4
 	ba,pt	%xcc, winfix_trampoline
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/kernel/Makefile linux-libre-4.4.107-gnu/arch/sparc/kernel/Makefile
--- linux-libre-4.4-gnu/arch/sparc/kernel/Makefile	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sparc/kernel/Makefile	2017-12-20 04:05:01.000000000 -0500
@@ -21,6 +21,7 @@ CFLAGS_REMOVE_perf_event.o := -pg
 CFLAGS_REMOVE_pcr.o := -pg
 endif
 
+obj-$(CONFIG_SPARC64)   += urtt_fill.o
 obj-$(CONFIG_SPARC32)   += entry.o wof.o wuf.o
 obj-$(CONFIG_SPARC32)   += etrap_32.o
 obj-$(CONFIG_SPARC32)   += rtrap_32.o
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/kernel/misctrap.S linux-libre-4.4.107-gnu/arch/sparc/kernel/misctrap.S
--- linux-libre-4.4-gnu/arch/sparc/kernel/misctrap.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sparc/kernel/misctrap.S	2017-12-20 04:05:01.000000000 -0500
@@ -18,8 +18,7 @@ __do_privact:
 109:	or		%g7, %lo(109b), %g7
 	call		do_privact
 	 add		%sp, PTREGS_OFF, %o0
-	ba,pt		%xcc, rtrap
-	 nop
+	ba,a,pt		%xcc, rtrap
 	.size		__do_privact,.-__do_privact
 
 	.type		do_mna,#function
@@ -46,8 +45,7 @@ do_mna:
 	mov		%l5, %o2
 	call		mem_address_unaligned
 	 add		%sp, PTREGS_OFF, %o0
-	ba,pt		%xcc, rtrap
-	 nop
+	ba,a,pt		%xcc, rtrap
 	.size		do_mna,.-do_mna
 
 	.type		do_lddfmna,#function
@@ -65,8 +63,7 @@ do_lddfmna:
 	mov		%l5, %o2
 	call		handle_lddfmna
 	 add		%sp, PTREGS_OFF, %o0
-	ba,pt		%xcc, rtrap
-	 nop
+	ba,a,pt		%xcc, rtrap
 	.size		do_lddfmna,.-do_lddfmna
 
 	.type		do_stdfmna,#function
@@ -84,8 +81,7 @@ do_stdfmna:
 	mov		%l5, %o2
 	call		handle_stdfmna
 	 add		%sp, PTREGS_OFF, %o0
-	ba,pt		%xcc, rtrap
-	 nop
+	ba,a,pt		%xcc, rtrap
 	.size		do_stdfmna,.-do_stdfmna
 
 	.type		breakpoint_trap,#function
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/kernel/pci.c linux-libre-4.4.107-gnu/arch/sparc/kernel/pci.c
--- linux-libre-4.4-gnu/arch/sparc/kernel/pci.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sparc/kernel/pci.c	2017-12-20 04:05:01.000000000 -0500
@@ -994,6 +994,23 @@ void pcibios_set_master(struct pci_dev *
 	/* No special bus mastering setup handling */
 }
 
+#ifdef CONFIG_PCI_IOV
+int pcibios_add_device(struct pci_dev *dev)
+{
+	struct pci_dev *pdev;
+
+	/* Add sriov arch specific initialization here.
+	 * Copy dev_archdata from PF to VF
+	 */
+	if (dev->is_virtfn) {
+		pdev = dev->physfn;
+		memcpy(&dev->dev.archdata, &pdev->dev.archdata,
+		       sizeof(struct dev_archdata));
+	}
+	return 0;
+}
+#endif /* CONFIG_PCI_IOV */
+
 static int __init pcibios_init(void)
 {
 	pci_dfl_cache_line_size = 64 >> 2;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/kernel/ptrace_64.c linux-libre-4.4.107-gnu/arch/sparc/kernel/ptrace_64.c
--- linux-libre-4.4-gnu/arch/sparc/kernel/ptrace_64.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sparc/kernel/ptrace_64.c	2017-12-20 04:05:01.000000000 -0500
@@ -311,7 +311,7 @@ static int genregs64_set(struct task_str
 	}
 
 	if (!ret) {
-		unsigned long y;
+		unsigned long y = regs->y;
 
 		ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
 					 &y,
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/kernel/rtrap_64.S linux-libre-4.4.107-gnu/arch/sparc/kernel/rtrap_64.S
--- linux-libre-4.4-gnu/arch/sparc/kernel/rtrap_64.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sparc/kernel/rtrap_64.S	2017-12-20 04:05:01.000000000 -0500
@@ -14,10 +14,6 @@
 #include <asm/visasm.h>
 #include <asm/processor.h>
 
-#define		RTRAP_PSTATE		(PSTATE_TSO|PSTATE_PEF|PSTATE_PRIV|PSTATE_IE)
-#define		RTRAP_PSTATE_IRQOFF	(PSTATE_TSO|PSTATE_PEF|PSTATE_PRIV)
-#define		RTRAP_PSTATE_AG_IRQOFF	(PSTATE_TSO|PSTATE_PEF|PSTATE_PRIV|PSTATE_AG)
-
 #ifdef CONFIG_CONTEXT_TRACKING
 # define SCHEDULE_USER schedule_user
 #else
@@ -242,52 +238,17 @@ rt_continue:	ldx			[%sp + PTREGS_OFF + P
 		 wrpr			%g1, %cwp
 		ba,a,pt			%xcc, user_rtt_fill_64bit
 
-user_rtt_fill_fixup:
-		rdpr	%cwp, %g1
-		add	%g1, 1, %g1
-		wrpr	%g1, 0x0, %cwp
-
-		rdpr	%wstate, %g2
-		sll	%g2, 3, %g2
-		wrpr	%g2, 0x0, %wstate
-
-		/* We know %canrestore and %otherwin are both zero.  */
-
-		sethi	%hi(sparc64_kern_pri_context), %g2
-		ldx	[%g2 + %lo(sparc64_kern_pri_context)], %g2
-		mov	PRIMARY_CONTEXT, %g1
-
-661:		stxa	%g2, [%g1] ASI_DMMU
-		.section .sun4v_1insn_patch, "ax"
-		.word	661b
-		stxa	%g2, [%g1] ASI_MMU
-		.previous
-
-		sethi	%hi(KERNBASE), %g1
-		flush	%g1
-
-		or	%g4, FAULT_CODE_WINFIXUP, %g4
-		stb	%g4, [%g6 + TI_FAULT_CODE]
-		stx	%g5, [%g6 + TI_FAULT_ADDR]
-
-		mov	%g6, %l1
-		wrpr	%g0, 0x0, %tl
-
-661:		nop
-		.section		.sun4v_1insn_patch, "ax"
-		.word			661b
-		SET_GL(0)
-		.previous
+user_rtt_fill_fixup_dax:
+		ba,pt	%xcc, user_rtt_fill_fixup_common
+		 mov	1, %g3
 
-		wrpr	%g0, RTRAP_PSTATE, %pstate
+user_rtt_fill_fixup_mna:
+		ba,pt	%xcc, user_rtt_fill_fixup_common
+		 mov	2, %g3
 
-		mov	%l1, %g6
-		ldx	[%g6 + TI_TASK], %g4
-		LOAD_PER_CPU_BASE(%g5, %g6, %g1, %g2, %g3)
-		call	do_sparc64_fault
-		 add	%sp, PTREGS_OFF, %o0
-		ba,pt	%xcc, rtrap
-		 nop
+user_rtt_fill_fixup:
+		ba,pt	%xcc, user_rtt_fill_fixup_common
+		 clr	%g3
 
 user_rtt_pre_restore:
 		add			%g1, 1, %g1
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/kernel/signal_32.c linux-libre-4.4.107-gnu/arch/sparc/kernel/signal_32.c
--- linux-libre-4.4-gnu/arch/sparc/kernel/signal_32.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sparc/kernel/signal_32.c	2017-12-20 04:05:01.000000000 -0500
@@ -60,10 +60,22 @@ struct rt_signal_frame {
 #define SF_ALIGNEDSZ  (((sizeof(struct signal_frame) + 7) & (~7)))
 #define RT_ALIGNEDSZ  (((sizeof(struct rt_signal_frame) + 7) & (~7)))
 
+/* Checks if the fp is valid.  We always build signal frames which are
+ * 16-byte aligned, therefore we can always enforce that the restore
+ * frame has that property as well.
+ */
+static inline bool invalid_frame_pointer(void __user *fp, int fplen)
+{
+	if ((((unsigned long) fp) & 15) || !__access_ok((unsigned long)fp, fplen))
+		return true;
+
+	return false;
+}
+
 asmlinkage void do_sigreturn(struct pt_regs *regs)
 {
+	unsigned long up_psr, pc, npc, ufp;
 	struct signal_frame __user *sf;
-	unsigned long up_psr, pc, npc;
 	sigset_t set;
 	__siginfo_fpu_t __user *fpu_save;
 	__siginfo_rwin_t __user *rwin_save;
@@ -77,10 +89,13 @@ asmlinkage void do_sigreturn(struct pt_r
 	sf = (struct signal_frame __user *) regs->u_regs[UREG_FP];
 
 	/* 1. Make sure we are not getting garbage from the user */
-	if (!access_ok(VERIFY_READ, sf, sizeof(*sf)))
+	if (invalid_frame_pointer(sf, sizeof(*sf)))
 		goto segv_and_exit;
 
-	if (((unsigned long) sf) & 3)
+	if (get_user(ufp, &sf->info.si_regs.u_regs[UREG_FP]))
+		goto segv_and_exit;
+
+	if (ufp & 0x7)
 		goto segv_and_exit;
 
 	err = __get_user(pc,  &sf->info.si_regs.pc);
@@ -127,7 +142,7 @@ segv_and_exit:
 asmlinkage void do_rt_sigreturn(struct pt_regs *regs)
 {
 	struct rt_signal_frame __user *sf;
-	unsigned int psr, pc, npc;
+	unsigned int psr, pc, npc, ufp;
 	__siginfo_fpu_t __user *fpu_save;
 	__siginfo_rwin_t __user *rwin_save;
 	sigset_t set;
@@ -135,8 +150,13 @@ asmlinkage void do_rt_sigreturn(struct p
 
 	synchronize_user_stack();
 	sf = (struct rt_signal_frame __user *) regs->u_regs[UREG_FP];
-	if (!access_ok(VERIFY_READ, sf, sizeof(*sf)) ||
-	    (((unsigned long) sf) & 0x03))
+	if (invalid_frame_pointer(sf, sizeof(*sf)))
+		goto segv;
+
+	if (get_user(ufp, &sf->regs.u_regs[UREG_FP]))
+		goto segv;
+
+	if (ufp & 0x7)
 		goto segv;
 
 	err = __get_user(pc, &sf->regs.pc);
@@ -178,15 +198,6 @@ segv:
 	force_sig(SIGSEGV, current);
 }
 
-/* Checks if the fp is valid */
-static inline int invalid_frame_pointer(void __user *fp, int fplen)
-{
-	if ((((unsigned long) fp) & 7) || !__access_ok((unsigned long)fp, fplen))
-		return 1;
-
-	return 0;
-}
-
 static inline void __user *get_sigframe(struct ksignal *ksig, struct pt_regs *regs, unsigned long framesize)
 {
 	unsigned long sp = regs->u_regs[UREG_FP];
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/kernel/signal32.c linux-libre-4.4.107-gnu/arch/sparc/kernel/signal32.c
--- linux-libre-4.4-gnu/arch/sparc/kernel/signal32.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sparc/kernel/signal32.c	2017-12-20 04:05:01.000000000 -0500
@@ -138,12 +138,24 @@ int copy_siginfo_from_user32(siginfo_t *
 	return 0;
 }
 
+/* Checks if the fp is valid.  We always build signal frames which are
+ * 16-byte aligned, therefore we can always enforce that the restore
+ * frame has that property as well.
+ */
+static bool invalid_frame_pointer(void __user *fp, int fplen)
+{
+	if ((((unsigned long) fp) & 15) ||
+	    ((unsigned long)fp) > 0x100000000ULL - fplen)
+		return true;
+	return false;
+}
+
 void do_sigreturn32(struct pt_regs *regs)
 {
 	struct signal_frame32 __user *sf;
 	compat_uptr_t fpu_save;
 	compat_uptr_t rwin_save;
-	unsigned int psr;
+	unsigned int psr, ufp;
 	unsigned pc, npc;
 	sigset_t set;
 	compat_sigset_t seta;
@@ -158,11 +170,16 @@ void do_sigreturn32(struct pt_regs *regs
 	sf = (struct signal_frame32 __user *) regs->u_regs[UREG_FP];
 
 	/* 1. Make sure we are not getting garbage from the user */
-	if (!access_ok(VERIFY_READ, sf, sizeof(*sf)) ||
-	    (((unsigned long) sf) & 3))
+	if (invalid_frame_pointer(sf, sizeof(*sf)))
 		goto segv;
 
-	if (get_user(pc, &sf->info.si_regs.pc) ||
+	if (get_user(ufp, &sf->info.si_regs.u_regs[UREG_FP]))
+		goto segv;
+
+	if (ufp & 0x7)
+		goto segv;
+
+	if (__get_user(pc, &sf->info.si_regs.pc) ||
 	    __get_user(npc, &sf->info.si_regs.npc))
 		goto segv;
 
@@ -227,7 +244,7 @@ segv:
 asmlinkage void do_rt_sigreturn32(struct pt_regs *regs)
 {
 	struct rt_signal_frame32 __user *sf;
-	unsigned int psr, pc, npc;
+	unsigned int psr, pc, npc, ufp;
 	compat_uptr_t fpu_save;
 	compat_uptr_t rwin_save;
 	sigset_t set;
@@ -242,11 +259,16 @@ asmlinkage void do_rt_sigreturn32(struct
 	sf = (struct rt_signal_frame32 __user *) regs->u_regs[UREG_FP];
 
 	/* 1. Make sure we are not getting garbage from the user */
-	if (!access_ok(VERIFY_READ, sf, sizeof(*sf)) ||
-	    (((unsigned long) sf) & 3))
+	if (invalid_frame_pointer(sf, sizeof(*sf)))
 		goto segv;
 
-	if (get_user(pc, &sf->regs.pc) || 
+	if (get_user(ufp, &sf->regs.u_regs[UREG_FP]))
+		goto segv;
+
+	if (ufp & 0x7)
+		goto segv;
+
+	if (__get_user(pc, &sf->regs.pc) ||
 	    __get_user(npc, &sf->regs.npc))
 		goto segv;
 
@@ -307,14 +329,6 @@ segv:
 	force_sig(SIGSEGV, current);
 }
 
-/* Checks if the fp is valid */
-static int invalid_frame_pointer(void __user *fp, int fplen)
-{
-	if ((((unsigned long) fp) & 7) || ((unsigned long)fp) > 0x100000000ULL - fplen)
-		return 1;
-	return 0;
-}
-
 static void __user *get_sigframe(struct ksignal *ksig, struct pt_regs *regs, unsigned long framesize)
 {
 	unsigned long sp;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/kernel/signal_64.c linux-libre-4.4.107-gnu/arch/sparc/kernel/signal_64.c
--- linux-libre-4.4-gnu/arch/sparc/kernel/signal_64.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sparc/kernel/signal_64.c	2017-12-20 04:05:01.000000000 -0500
@@ -52,7 +52,7 @@ asmlinkage void sparc64_set_context(stru
 	unsigned char fenab;
 	int err;
 
-	flush_user_windows();
+	synchronize_user_stack();
 	if (get_thread_wsaved()					||
 	    (((unsigned long)ucp) & (sizeof(unsigned long)-1))	||
 	    (!__access_ok(ucp, sizeof(*ucp))))
@@ -234,6 +234,17 @@ do_sigsegv:
 	goto out;
 }
 
+/* Checks if the fp is valid.  We always build rt signal frames which
+ * are 16-byte aligned, therefore we can always enforce that the
+ * restore frame has that property as well.
+ */
+static bool invalid_frame_pointer(void __user *fp)
+{
+	if (((unsigned long) fp) & 15)
+		return true;
+	return false;
+}
+
 struct rt_signal_frame {
 	struct sparc_stackf	ss;
 	siginfo_t		info;
@@ -246,8 +257,8 @@ struct rt_signal_frame {
 
 void do_rt_sigreturn(struct pt_regs *regs)
 {
+	unsigned long tpc, tnpc, tstate, ufp;
 	struct rt_signal_frame __user *sf;
-	unsigned long tpc, tnpc, tstate;
 	__siginfo_fpu_t __user *fpu_save;
 	__siginfo_rwin_t __user *rwin_save;
 	sigset_t set;
@@ -261,10 +272,16 @@ void do_rt_sigreturn(struct pt_regs *reg
 		(regs->u_regs [UREG_FP] + STACK_BIAS);
 
 	/* 1. Make sure we are not getting garbage from the user */
-	if (((unsigned long) sf) & 3)
+	if (invalid_frame_pointer(sf))
 		goto segv;
 
-	err = get_user(tpc, &sf->regs.tpc);
+	if (get_user(ufp, &sf->regs.u_regs[UREG_FP]))
+		goto segv;
+
+	if ((ufp + STACK_BIAS) & 0x7)
+		goto segv;
+
+	err = __get_user(tpc, &sf->regs.tpc);
 	err |= __get_user(tnpc, &sf->regs.tnpc);
 	if (test_thread_flag(TIF_32BIT)) {
 		tpc &= 0xffffffff;
@@ -308,14 +325,6 @@ segv:
 	force_sig(SIGSEGV, current);
 }
 
-/* Checks if the fp is valid */
-static int invalid_frame_pointer(void __user *fp)
-{
-	if (((unsigned long) fp) & 15)
-		return 1;
-	return 0;
-}
-
 static inline void __user *get_sigframe(struct ksignal *ksig, struct pt_regs *regs, unsigned long framesize)
 {
 	unsigned long sp = regs->u_regs[UREG_FP] + STACK_BIAS;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/kernel/sigutil_32.c linux-libre-4.4.107-gnu/arch/sparc/kernel/sigutil_32.c
--- linux-libre-4.4-gnu/arch/sparc/kernel/sigutil_32.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sparc/kernel/sigutil_32.c	2017-12-20 04:05:01.000000000 -0500
@@ -48,6 +48,10 @@ int save_fpu_state(struct pt_regs *regs,
 int restore_fpu_state(struct pt_regs *regs, __siginfo_fpu_t __user *fpu)
 {
 	int err;
+
+	if (((unsigned long) fpu) & 3)
+		return -EFAULT;
+
 #ifdef CONFIG_SMP
 	if (test_tsk_thread_flag(current, TIF_USEDFPU))
 		regs->psr &= ~PSR_EF;
@@ -97,7 +101,10 @@ int restore_rwin_state(__siginfo_rwin_t
 	struct thread_info *t = current_thread_info();
 	int i, wsaved, err;
 
-	__get_user(wsaved, &rp->wsaved);
+	if (((unsigned long) rp) & 3)
+		return -EFAULT;
+
+	get_user(wsaved, &rp->wsaved);
 	if (wsaved > NSWINS)
 		return -EFAULT;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/kernel/sigutil_64.c linux-libre-4.4.107-gnu/arch/sparc/kernel/sigutil_64.c
--- linux-libre-4.4-gnu/arch/sparc/kernel/sigutil_64.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sparc/kernel/sigutil_64.c	2017-12-20 04:05:01.000000000 -0500
@@ -37,7 +37,10 @@ int restore_fpu_state(struct pt_regs *re
 	unsigned long fprs;
 	int err;
 
-	err = __get_user(fprs, &fpu->si_fprs);
+	if (((unsigned long) fpu) & 7)
+		return -EFAULT;
+
+	err = get_user(fprs, &fpu->si_fprs);
 	fprs_write(0);
 	regs->tstate &= ~TSTATE_PEF;
 	if (fprs & FPRS_DL)
@@ -72,7 +75,10 @@ int restore_rwin_state(__siginfo_rwin_t
 	struct thread_info *t = current_thread_info();
 	int i, wsaved, err;
 
-	__get_user(wsaved, &rp->wsaved);
+	if (((unsigned long) rp) & 7)
+		return -EFAULT;
+
+	get_user(wsaved, &rp->wsaved);
 	if (wsaved > NSWINS)
 		return -EFAULT;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/kernel/smp_64.c linux-libre-4.4.107-gnu/arch/sparc/kernel/smp_64.c
--- linux-libre-4.4-gnu/arch/sparc/kernel/smp_64.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sparc/kernel/smp_64.c	2017-12-20 04:05:01.000000000 -0500
@@ -617,22 +617,48 @@ retry:
 	}
 }
 
-/* Multi-cpu list version.  */
+#define	CPU_MONDO_COUNTER(cpuid)	(cpu_mondo_counter[cpuid])
+#define	MONDO_USEC_WAIT_MIN		2
+#define	MONDO_USEC_WAIT_MAX		100
+#define	MONDO_RETRY_LIMIT		500000
+
+/* Multi-cpu list version.
+ *
+ * Deliver xcalls to 'cnt' number of cpus in 'cpu_list'.
+ * Sometimes not all cpus receive the mondo, requiring us to re-send
+ * the mondo until all cpus have received, or cpus are truly stuck
+ * unable to receive mondo, and we timeout.
+ * Occasionally a target cpu strand is borrowed briefly by hypervisor to
+ * perform guest service, such as PCIe error handling. Consider the
+ * service time, 1 second overall wait is reasonable for 1 cpu.
+ * Here two in-between mondo check wait time are defined: 2 usec for
+ * single cpu quick turn around and up to 100usec for large cpu count.
+ * Deliver mondo to large number of cpus could take longer, we adjusts
+ * the retry count as long as target cpus are making forward progress.
+ */
 static void hypervisor_xcall_deliver(struct trap_per_cpu *tb, int cnt)
 {
-	int retries, this_cpu, prev_sent, i, saw_cpu_error;
+	int this_cpu, tot_cpus, prev_sent, i, rem;
+	int usec_wait, retries, tot_retries;
+	u16 first_cpu = 0xffff;
+	unsigned long xc_rcvd = 0;
 	unsigned long status;
+	int ecpuerror_id = 0;
+	int enocpu_id = 0;
 	u16 *cpu_list;
+	u16 cpu;
 
 	this_cpu = smp_processor_id();
-
 	cpu_list = __va(tb->cpu_list_pa);
-
-	saw_cpu_error = 0;
-	retries = 0;
+	usec_wait = cnt * MONDO_USEC_WAIT_MIN;
+	if (usec_wait > MONDO_USEC_WAIT_MAX)
+		usec_wait = MONDO_USEC_WAIT_MAX;
+	retries = tot_retries = 0;
+	tot_cpus = cnt;
 	prev_sent = 0;
+
 	do {
-		int forward_progress, n_sent;
+		int n_sent, mondo_delivered, target_cpu_busy;
 
 		status = sun4v_cpu_mondo_send(cnt,
 					      tb->cpu_list_pa,
@@ -640,94 +666,113 @@ static void hypervisor_xcall_deliver(str
 
 		/* HV_EOK means all cpus received the xcall, we're done.  */
 		if (likely(status == HV_EOK))
-			break;
+			goto xcall_done;
+
+		/* If not these non-fatal errors, panic */
+		if (unlikely((status != HV_EWOULDBLOCK) &&
+			(status != HV_ECPUERROR) &&
+			(status != HV_ENOCPU)))
+			goto fatal_errors;
 
 		/* First, see if we made any forward progress.
 		 *
+		 * Go through the cpu_list, count the target cpus that have
+		 * received our mondo (n_sent), and those that did not (rem).
+		 * Re-pack cpu_list with the cpus remain to be retried in the
+		 * front - this simplifies tracking the truly stalled cpus.
+		 *
 		 * The hypervisor indicates successful sends by setting
 		 * cpu list entries to the value 0xffff.
+		 *
+		 * EWOULDBLOCK means some target cpus did not receive the
+		 * mondo and retry usually helps.
+		 *
+		 * ECPUERROR means at least one target cpu is in error state,
+		 * it's usually safe to skip the faulty cpu and retry.
+		 *
+		 * ENOCPU means one of the target cpu doesn't belong to the
+		 * domain, perhaps offlined which is unexpected, but not
+		 * fatal and it's okay to skip the offlined cpu.
 		 */
+		rem = 0;
 		n_sent = 0;
 		for (i = 0; i < cnt; i++) {
-			if (likely(cpu_list[i] == 0xffff))
+			cpu = cpu_list[i];
+			if (likely(cpu == 0xffff)) {
 				n_sent++;
+			} else if ((status == HV_ECPUERROR) &&
+				(sun4v_cpu_state(cpu) == HV_CPU_STATE_ERROR)) {
+				ecpuerror_id = cpu + 1;
+			} else if (status == HV_ENOCPU && !cpu_online(cpu)) {
+				enocpu_id = cpu + 1;
+			} else {
+				cpu_list[rem++] = cpu;
+			}
 		}
 
-		forward_progress = 0;
-		if (n_sent > prev_sent)
-			forward_progress = 1;
+		/* No cpu remained, we're done. */
+		if (rem == 0)
+			break;
 
-		prev_sent = n_sent;
+		/* Otherwise, update the cpu count for retry. */
+		cnt = rem;
 
-		/* If we get a HV_ECPUERROR, then one or more of the cpus
-		 * in the list are in error state.  Use the cpu_state()
-		 * hypervisor call to find out which cpus are in error state.
+		/* Record the overall number of mondos received by the
+		 * first of the remaining cpus.
 		 */
-		if (unlikely(status == HV_ECPUERROR)) {
-			for (i = 0; i < cnt; i++) {
-				long err;
-				u16 cpu;
+		if (first_cpu != cpu_list[0]) {
+			first_cpu = cpu_list[0];
+			xc_rcvd = CPU_MONDO_COUNTER(first_cpu);
+		}
 
-				cpu = cpu_list[i];
-				if (cpu == 0xffff)
-					continue;
+		/* Was any mondo delivered successfully? */
+		mondo_delivered = (n_sent > prev_sent);
+		prev_sent = n_sent;
 
-				err = sun4v_cpu_state(cpu);
-				if (err == HV_CPU_STATE_ERROR) {
-					saw_cpu_error = (cpu + 1);
-					cpu_list[i] = 0xffff;
-				}
-			}
-		} else if (unlikely(status != HV_EWOULDBLOCK))
-			goto fatal_mondo_error;
+		/* or, was any target cpu busy processing other mondos? */
+		target_cpu_busy = (xc_rcvd < CPU_MONDO_COUNTER(first_cpu));
+		xc_rcvd = CPU_MONDO_COUNTER(first_cpu);
 
-		/* Don't bother rewriting the CPU list, just leave the
-		 * 0xffff and non-0xffff entries in there and the
-		 * hypervisor will do the right thing.
-		 *
-		 * Only advance timeout state if we didn't make any
-		 * forward progress.
+		/* Retry count is for no progress. If we're making progress,
+		 * reset the retry count.
 		 */
-		if (unlikely(!forward_progress)) {
-			if (unlikely(++retries > 10000))
-				goto fatal_mondo_timeout;
-
-			/* Delay a little bit to let other cpus catch up
-			 * on their cpu mondo queue work.
-			 */
-			udelay(2 * cnt);
+		if (likely(mondo_delivered || target_cpu_busy)) {
+			tot_retries += retries;
+			retries = 0;
+		} else if (unlikely(retries > MONDO_RETRY_LIMIT)) {
+			goto fatal_mondo_timeout;
 		}
-	} while (1);
 
-	if (unlikely(saw_cpu_error))
-		goto fatal_mondo_cpu_error;
+		/* Delay a little bit to let other cpus catch up on
+		 * their cpu mondo queue work.
+		 */
+		if (!mondo_delivered)
+			udelay(usec_wait);
 
-	return;
+		retries++;
+	} while (1);
 
-fatal_mondo_cpu_error:
-	printk(KERN_CRIT "CPU[%d]: SUN4V mondo cpu error, some target cpus "
-	       "(including %d) were in error state\n",
-	       this_cpu, saw_cpu_error - 1);
+xcall_done:
+	if (unlikely(ecpuerror_id > 0)) {
+		pr_crit("CPU[%d]: SUN4V mondo cpu error, target cpu(%d) was in error state\n",
+		       this_cpu, ecpuerror_id - 1);
+	} else if (unlikely(enocpu_id > 0)) {
+		pr_crit("CPU[%d]: SUN4V mondo cpu error, target cpu(%d) does not belong to the domain\n",
+		       this_cpu, enocpu_id - 1);
+	}
 	return;
 
-fatal_mondo_timeout:
-	printk(KERN_CRIT "CPU[%d]: SUN4V mondo timeout, no forward "
-	       " progress after %d retries.\n",
-	       this_cpu, retries);
-	goto dump_cpu_list_and_out;
-
-fatal_mondo_error:
-	printk(KERN_CRIT "CPU[%d]: Unexpected SUN4V mondo error %lu\n",
-	       this_cpu, status);
-	printk(KERN_CRIT "CPU[%d]: Args were cnt(%d) cpulist_pa(%lx) "
-	       "mondo_block_pa(%lx)\n",
-	       this_cpu, cnt, tb->cpu_list_pa, tb->cpu_mondo_block_pa);
+fatal_errors:
+	/* fatal errors include bad alignment, etc */
+	pr_crit("CPU[%d]: Args were cnt(%d) cpulist_pa(%lx) mondo_block_pa(%lx)\n",
+	       this_cpu, tot_cpus, tb->cpu_list_pa, tb->cpu_mondo_block_pa);
+	panic("Unexpected SUN4V mondo error %lu\n", status);
 
-dump_cpu_list_and_out:
-	printk(KERN_CRIT "CPU[%d]: CPU list [ ", this_cpu);
-	for (i = 0; i < cnt; i++)
-		printk("%u ", cpu_list[i]);
-	printk("]\n");
+fatal_mondo_timeout:
+	/* some cpus being non-responsive to the cpu mondo */
+	pr_crit("CPU[%d]: SUN4V mondo timeout, cpu(%d) made no forward progress after %d retries. Total target cpus(%d).\n",
+	       this_cpu, first_cpu, (tot_retries + retries), tot_cpus);
+	panic("SUN4V mondo timeout panic\n");
 }
 
 static void (*xcall_deliver_impl)(struct trap_per_cpu *, int);
@@ -959,37 +1004,6 @@ void flush_dcache_page_all(struct mm_str
 	preempt_enable();
 }
 
-void __irq_entry smp_new_mmu_context_version_client(int irq, struct pt_regs *regs)
-{
-	struct mm_struct *mm;
-	unsigned long flags;
-
-	clear_softint(1 << irq);
-
-	/* See if we need to allocate a new TLB context because
-	 * the version of the one we are using is now out of date.
-	 */
-	mm = current->active_mm;
-	if (unlikely(!mm || (mm == &init_mm)))
-		return;
-
-	spin_lock_irqsave(&mm->context.lock, flags);
-
-	if (unlikely(!CTX_VALID(mm->context)))
-		get_new_mmu_context(mm);
-
-	spin_unlock_irqrestore(&mm->context.lock, flags);
-
-	load_secondary_context(mm);
-	__flush_tlb_mm(CTX_HWBITS(mm->context),
-		       SECONDARY_CONTEXT);
-}
-
-void smp_new_mmu_context_version(void)
-{
-	smp_cross_call(&xcall_new_mmu_context_version, 0, 0, 0);
-}
-
 #ifdef CONFIG_KGDB
 void kgdb_roundup_cpus(unsigned long flags)
 {
@@ -1429,8 +1443,12 @@ void smp_send_stop(void)
 	int cpu;
 
 	if (tlb_type == hypervisor) {
+		int this_cpu = smp_processor_id();
+#ifdef CONFIG_SERIAL_SUNHV
+		sunhv_migrate_hvcons_irq(this_cpu);
+#endif
 		for_each_online_cpu(cpu) {
-			if (cpu == smp_processor_id())
+			if (cpu == this_cpu)
 				continue;
 #ifdef CONFIG_SUN_LDOMS
 			if (ldom_domaining_enabled) {
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/kernel/sparc_ksyms_64.c linux-libre-4.4.107-gnu/arch/sparc/kernel/sparc_ksyms_64.c
--- linux-libre-4.4-gnu/arch/sparc/kernel/sparc_ksyms_64.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sparc/kernel/sparc_ksyms_64.c	2017-12-20 04:05:01.000000000 -0500
@@ -27,7 +27,6 @@ EXPORT_SYMBOL(__flushw_user);
 EXPORT_SYMBOL_GPL(real_hard_smp_processor_id);
 
 /* from head_64.S */
-EXPORT_SYMBOL(__ret_efault);
 EXPORT_SYMBOL(tlb_type);
 EXPORT_SYMBOL(sun4v_chip_type);
 EXPORT_SYMBOL(prom_root_node);
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/kernel/spiterrs.S linux-libre-4.4.107-gnu/arch/sparc/kernel/spiterrs.S
--- linux-libre-4.4-gnu/arch/sparc/kernel/spiterrs.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sparc/kernel/spiterrs.S	2017-12-20 04:05:01.000000000 -0500
@@ -85,8 +85,7 @@ __spitfire_cee_trap_continue:
 	ba,pt		%xcc, etraptl1
 	 rd		%pc, %g7
 
-	ba,pt		%xcc, 2f
-	 nop
+	ba,a,pt		%xcc, 2f
 
 1:	ba,pt		%xcc, etrap_irq
 	 rd		%pc, %g7
@@ -100,8 +99,7 @@ __spitfire_cee_trap_continue:
 	mov		%l5, %o2
 	call		spitfire_access_error
 	 add		%sp, PTREGS_OFF, %o0
-	ba,pt		%xcc, rtrap
-	 nop
+	ba,a,pt		%xcc, rtrap
 	.size		__spitfire_access_error,.-__spitfire_access_error
 
 	/* This is the trap handler entry point for ECC correctable
@@ -179,8 +177,7 @@ __spitfire_data_access_exception_tl1:
 	mov		%l5, %o2
 	call		spitfire_data_access_exception_tl1
 	 add		%sp, PTREGS_OFF, %o0
-	ba,pt		%xcc, rtrap
-	 nop
+	ba,a,pt		%xcc, rtrap
 	.size		__spitfire_data_access_exception_tl1,.-__spitfire_data_access_exception_tl1
 
 	.type		__spitfire_data_access_exception,#function
@@ -200,8 +197,7 @@ __spitfire_data_access_exception:
 	mov		%l5, %o2
 	call		spitfire_data_access_exception
 	 add		%sp, PTREGS_OFF, %o0
-	ba,pt		%xcc, rtrap
-	 nop
+	ba,a,pt		%xcc, rtrap
 	.size		__spitfire_data_access_exception,.-__spitfire_data_access_exception
 
 	.type		__spitfire_insn_access_exception_tl1,#function
@@ -220,8 +216,7 @@ __spitfire_insn_access_exception_tl1:
 	mov		%l5, %o2
 	call		spitfire_insn_access_exception_tl1
 	 add		%sp, PTREGS_OFF, %o0
-	ba,pt		%xcc, rtrap
-	 nop
+	ba,a,pt		%xcc, rtrap
 	.size		__spitfire_insn_access_exception_tl1,.-__spitfire_insn_access_exception_tl1
 
 	.type		__spitfire_insn_access_exception,#function
@@ -240,6 +235,5 @@ __spitfire_insn_access_exception:
 	mov		%l5, %o2
 	call		spitfire_insn_access_exception
 	 add		%sp, PTREGS_OFF, %o0
-	ba,pt		%xcc, rtrap
-	 nop
+	ba,a,pt		%xcc, rtrap
 	.size		__spitfire_insn_access_exception,.-__spitfire_insn_access_exception
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/kernel/sun4v_ivec.S linux-libre-4.4.107-gnu/arch/sparc/kernel/sun4v_ivec.S
--- linux-libre-4.4-gnu/arch/sparc/kernel/sun4v_ivec.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sparc/kernel/sun4v_ivec.S	2017-12-20 04:05:01.000000000 -0500
@@ -26,6 +26,21 @@ sun4v_cpu_mondo:
 	ldxa	[%g0] ASI_SCRATCHPAD, %g4
 	sub	%g4, TRAP_PER_CPU_FAULT_INFO, %g4
 
+	/* Get smp_processor_id() into %g3 */
+	sethi	%hi(trap_block), %g5
+	or	%g5, %lo(trap_block), %g5
+	sub	%g4, %g5, %g3
+	srlx	%g3, TRAP_BLOCK_SZ_SHIFT, %g3
+
+	/* Increment cpu_mondo_counter[smp_processor_id()] */
+	sethi	%hi(cpu_mondo_counter), %g5
+	or	%g5, %lo(cpu_mondo_counter), %g5
+	sllx	%g3, 3, %g3
+	add	%g5, %g3, %g5
+	ldx	[%g5], %g3
+	add	%g3, 1, %g3
+	stx	%g3, [%g5]
+
 	/* Get CPU mondo queue base phys address into %g7.  */
 	ldx	[%g4 + TRAP_PER_CPU_CPU_MONDO_PA], %g7
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/kernel/syscalls.S linux-libre-4.4.107-gnu/arch/sparc/kernel/syscalls.S
--- linux-libre-4.4-gnu/arch/sparc/kernel/syscalls.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sparc/kernel/syscalls.S	2017-12-20 04:05:01.000000000 -0500
@@ -158,7 +158,25 @@ linux_syscall_trace32:
 	 add	%sp, PTREGS_OFF, %o0
 	brnz,pn	%o0, 3f
 	 mov	-ENOSYS, %o0
+
+	/* Syscall tracing can modify the registers.  */
+	ldx	[%sp + PTREGS_OFF + PT_V9_G1], %g1
+	sethi	%hi(sys_call_table32), %l7
+	ldx	[%sp + PTREGS_OFF + PT_V9_I0], %i0
+	or	%l7, %lo(sys_call_table32), %l7
+	ldx	[%sp + PTREGS_OFF + PT_V9_I1], %i1
+	ldx	[%sp + PTREGS_OFF + PT_V9_I2], %i2
+	ldx	[%sp + PTREGS_OFF + PT_V9_I3], %i3
+	ldx	[%sp + PTREGS_OFF + PT_V9_I4], %i4
+	ldx	[%sp + PTREGS_OFF + PT_V9_I5], %i5
+
+	cmp	%g1, NR_syscalls
+	bgeu,pn	%xcc, 3f
+	 mov	-ENOSYS, %o0
+
+	sll	%g1, 2, %l4
 	srl	%i0, 0, %o0
+	lduw	[%l7 + %l4], %l7
 	srl	%i4, 0, %o4
 	srl	%i1, 0, %o1
 	srl	%i2, 0, %o2
@@ -170,7 +188,25 @@ linux_syscall_trace:
 	 add	%sp, PTREGS_OFF, %o0
 	brnz,pn	%o0, 3f
 	 mov	-ENOSYS, %o0
+
+	/* Syscall tracing can modify the registers.  */
+	ldx	[%sp + PTREGS_OFF + PT_V9_G1], %g1
+	sethi	%hi(sys_call_table64), %l7
+	ldx	[%sp + PTREGS_OFF + PT_V9_I0], %i0
+	or	%l7, %lo(sys_call_table64), %l7
+	ldx	[%sp + PTREGS_OFF + PT_V9_I1], %i1
+	ldx	[%sp + PTREGS_OFF + PT_V9_I2], %i2
+	ldx	[%sp + PTREGS_OFF + PT_V9_I3], %i3
+	ldx	[%sp + PTREGS_OFF + PT_V9_I4], %i4
+	ldx	[%sp + PTREGS_OFF + PT_V9_I5], %i5
+
+	cmp	%g1, NR_syscalls
+	bgeu,pn	%xcc, 3f
+	 mov	-ENOSYS, %o0
+
+	sll	%g1, 2, %l4
 	mov	%i0, %o0
+	lduw	[%l7 + %l4], %l7
 	mov	%i1, %o1
 	mov	%i2, %o2
 	mov	%i3, %o3
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/kernel/sys_sparc_64.c linux-libre-4.4.107-gnu/arch/sparc/kernel/sys_sparc_64.c
--- linux-libre-4.4-gnu/arch/sparc/kernel/sys_sparc_64.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sparc/kernel/sys_sparc_64.c	2017-12-20 04:05:01.000000000 -0500
@@ -118,7 +118,7 @@ unsigned long arch_get_unmapped_area(str
 
 		vma = find_vma(mm, addr);
 		if (task_size - len >= addr &&
-		    (!vma || addr + len <= vma->vm_start))
+		    (!vma || addr + len <= vm_start_gap(vma)))
 			return addr;
 	}
 
@@ -181,7 +181,7 @@ arch_get_unmapped_area_topdown(struct fi
 
 		vma = find_vma(mm, addr);
 		if (task_size - len >= addr &&
-		    (!vma || addr + len <= vma->vm_start))
+		    (!vma || addr + len <= vm_start_gap(vma)))
 			return addr;
 	}
 
@@ -413,7 +413,7 @@ out:
 
 SYSCALL_DEFINE1(sparc64_personality, unsigned long, personality)
 {
-	int ret;
+	long ret;
 
 	if (personality(current->personality) == PER_LINUX32 &&
 	    personality(personality) == PER_LINUX)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/kernel/traps_64.c linux-libre-4.4.107-gnu/arch/sparc/kernel/traps_64.c
--- linux-libre-4.4-gnu/arch/sparc/kernel/traps_64.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sparc/kernel/traps_64.c	2017-12-20 04:05:01.000000000 -0500
@@ -85,7 +85,7 @@ static void dump_tl1_traplog(struct tl1_
 
 void bad_trap(struct pt_regs *regs, long lvl)
 {
-	char buffer[32];
+	char buffer[36];
 	siginfo_t info;
 
 	if (notify_die(DIE_TRAP, "bad trap", regs,
@@ -116,7 +116,7 @@ void bad_trap(struct pt_regs *regs, long
 
 void bad_trap_tl1(struct pt_regs *regs, long lvl)
 {
-	char buffer[32];
+	char buffer[36];
 	
 	if (notify_die(DIE_TRAP_TL1, "bad trap tl1", regs,
 		       0, lvl, SIGTRAP) == NOTIFY_STOP)
@@ -2659,6 +2659,7 @@ void do_getpsr(struct pt_regs *regs)
 	}
 }
 
+u64 cpu_mondo_counter[NR_CPUS] = {0};
 struct trap_per_cpu trap_block[NR_CPUS];
 EXPORT_SYMBOL(trap_block);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/kernel/tsb.S linux-libre-4.4.107-gnu/arch/sparc/kernel/tsb.S
--- linux-libre-4.4-gnu/arch/sparc/kernel/tsb.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sparc/kernel/tsb.S	2017-12-20 04:05:01.000000000 -0500
@@ -29,13 +29,17 @@
 	 */
 tsb_miss_dtlb:
 	mov		TLB_TAG_ACCESS, %g4
+	ldxa		[%g4] ASI_DMMU, %g4
+	srlx		%g4, PAGE_SHIFT, %g4
 	ba,pt		%xcc, tsb_miss_page_table_walk
-	 ldxa		[%g4] ASI_DMMU, %g4
+	 sllx		%g4, PAGE_SHIFT, %g4
 
 tsb_miss_itlb:
 	mov		TLB_TAG_ACCESS, %g4
+	ldxa		[%g4] ASI_IMMU, %g4
+	srlx		%g4, PAGE_SHIFT, %g4
 	ba,pt		%xcc, tsb_miss_page_table_walk
-	 ldxa		[%g4] ASI_IMMU, %g4
+	 sllx		%g4, PAGE_SHIFT, %g4
 
 	/* At this point we have:
 	 * %g1 --	PAGE_SIZE TSB entry address
@@ -284,6 +288,10 @@ tsb_do_dtlb_fault:
 	nop
 	.previous
 
+	/* Clear context ID bits.  */
+	srlx		%g5, PAGE_SHIFT, %g5
+	sllx		%g5, PAGE_SHIFT, %g5
+
 	be,pt	%xcc, sparc64_realfault_common
 	 mov	FAULT_CODE_DTLB, %g4
 	ba,pt	%xcc, winfix_trampoline
@@ -367,6 +375,7 @@ tsb_flush:
 	 * %o1:	TSB base config pointer
 	 * %o2:	TSB huge config pointer, or NULL if none
 	 * %o3:	Hypervisor TSB descriptor physical address
+	 * %o4: Secondary context to load, if non-zero
 	 *
 	 * We have to run this whole thing with interrupts
 	 * disabled so that the current cpu doesn't change
@@ -379,6 +388,17 @@ __tsb_context_switch:
 	rdpr	%pstate, %g1
 	wrpr	%g1, PSTATE_IE, %pstate
 
+	brz,pn	%o4, 1f
+	 mov	SECONDARY_CONTEXT, %o5
+
+661:	stxa	%o4, [%o5] ASI_DMMU
+	.section .sun4v_1insn_patch, "ax"
+	.word	661b
+	stxa	%o4, [%o5] ASI_MMU
+	.previous
+	flush	%g6
+
+1:
 	TRAP_LOAD_TRAP_BLOCK(%g2, %g3)
 
 	stx	%o0, [%g2 + TRAP_PER_CPU_PGD_PADDR]
@@ -462,13 +482,16 @@ __tsb_context_switch:
 	.type	copy_tsb,#function
 copy_tsb:		/* %o0=old_tsb_base, %o1=old_tsb_size
 			 * %o2=new_tsb_base, %o3=new_tsb_size
+			 * %o4=page_size_shift
 			 */
 	sethi		%uhi(TSB_PASS_BITS), %g7
 	srlx		%o3, 4, %o3
-	add		%o0, %o1, %g1	/* end of old tsb */
+	add		%o0, %o1, %o1	/* end of old tsb */
 	sllx		%g7, 32, %g7
 	sub		%o3, 1, %o3	/* %o3 == new tsb hash mask */
 
+	mov		%o4, %g1	/* page_size_shift */
+
 661:	prefetcha	[%o0] ASI_N, #one_read
 	.section	.tsb_phys_patch, "ax"
 	.word		661b
@@ -493,9 +516,9 @@ copy_tsb:		/* %o0=old_tsb_base, %o1=old_
 	/* This can definitely be computed faster... */
 	srlx		%o0, 4, %o5	/* Build index */
 	and		%o5, 511, %o5	/* Mask index */
-	sllx		%o5, PAGE_SHIFT, %o5 /* Put into vaddr position */
+	sllx		%o5, %g1, %o5	/* Put into vaddr position */
 	or		%o4, %o5, %o4	/* Full VADDR. */
-	srlx		%o4, PAGE_SHIFT, %o4 /* Shift down to create index */
+	srlx		%o4, %g1, %o4	/* Shift down to create index */
 	and		%o4, %o3, %o4	/* Mask with new_tsb_nents-1 */
 	sllx		%o4, 4, %o4	/* Shift back up into tsb ent offset */
 	TSB_STORE(%o2 + %o4, %g2)	/* Store TAG */
@@ -503,7 +526,7 @@ copy_tsb:		/* %o0=old_tsb_base, %o1=old_
 	TSB_STORE(%o2 + %o4, %g3)	/* Store TTE */
 
 80:	add		%o0, 16, %o0
-	cmp		%o0, %g1
+	cmp		%o0, %o1
 	bne,pt		%xcc, 90b
 	 nop
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/kernel/ttable_64.S linux-libre-4.4.107-gnu/arch/sparc/kernel/ttable_64.S
--- linux-libre-4.4-gnu/arch/sparc/kernel/ttable_64.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sparc/kernel/ttable_64.S	2017-12-20 04:05:01.000000000 -0500
@@ -50,7 +50,7 @@ tl0_resv03e:	BTRAP(0x3e) BTRAP(0x3f) BTR
 tl0_irq1:	TRAP_IRQ(smp_call_function_client, 1)
 tl0_irq2:	TRAP_IRQ(smp_receive_signal_client, 2)
 tl0_irq3:	TRAP_IRQ(smp_penguin_jailcell, 3)
-tl0_irq4:	TRAP_IRQ(smp_new_mmu_context_version_client, 4)
+tl0_irq4:       BTRAP(0x44)
 #else
 tl0_irq1:	BTRAP(0x41)
 tl0_irq2:	BTRAP(0x42)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/kernel/urtt_fill.S linux-libre-4.4.107-gnu/arch/sparc/kernel/urtt_fill.S
--- linux-libre-4.4-gnu/arch/sparc/kernel/urtt_fill.S	1969-12-31 19:00:00.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sparc/kernel/urtt_fill.S	2017-12-20 04:05:01.000000000 -0500
@@ -0,0 +1,98 @@
+#include <asm/thread_info.h>
+#include <asm/trap_block.h>
+#include <asm/spitfire.h>
+#include <asm/ptrace.h>
+#include <asm/head.h>
+
+		.text
+		.align	8
+		.globl	user_rtt_fill_fixup_common
+user_rtt_fill_fixup_common:
+		rdpr	%cwp, %g1
+		add	%g1, 1, %g1
+		wrpr	%g1, 0x0, %cwp
+
+		rdpr	%wstate, %g2
+		sll	%g2, 3, %g2
+		wrpr	%g2, 0x0, %wstate
+
+		/* We know %canrestore and %otherwin are both zero.  */
+
+		sethi	%hi(sparc64_kern_pri_context), %g2
+		ldx	[%g2 + %lo(sparc64_kern_pri_context)], %g2
+		mov	PRIMARY_CONTEXT, %g1
+
+661:		stxa	%g2, [%g1] ASI_DMMU
+		.section .sun4v_1insn_patch, "ax"
+		.word	661b
+		stxa	%g2, [%g1] ASI_MMU
+		.previous
+
+		sethi	%hi(KERNBASE), %g1
+		flush	%g1
+
+		mov	%g4, %l4
+		mov	%g5, %l5
+		brnz,pn	%g3, 1f
+		 mov	%g3, %l3
+
+		or	%g4, FAULT_CODE_WINFIXUP, %g4
+		stb	%g4, [%g6 + TI_FAULT_CODE]
+		stx	%g5, [%g6 + TI_FAULT_ADDR]
+1:
+		mov	%g6, %l1
+		wrpr	%g0, 0x0, %tl
+
+661:		nop
+		.section		.sun4v_1insn_patch, "ax"
+		.word			661b
+		SET_GL(0)
+		.previous
+
+		wrpr	%g0, RTRAP_PSTATE, %pstate
+
+		mov	%l1, %g6
+		ldx	[%g6 + TI_TASK], %g4
+		LOAD_PER_CPU_BASE(%g5, %g6, %g1, %g2, %g3)
+
+		brnz,pn	%l3, 1f
+		 nop
+
+		call	do_sparc64_fault
+		 add	%sp, PTREGS_OFF, %o0
+		ba,pt	%xcc, rtrap
+		 nop
+
+1:		cmp	%g3, 2
+		bne,pn	%xcc, 2f
+		 nop
+
+		sethi	%hi(tlb_type), %g1
+		lduw	[%g1 + %lo(tlb_type)], %g1
+		cmp	%g1, 3
+		bne,pt	%icc, 1f
+		 add	%sp, PTREGS_OFF, %o0
+		mov	%l4, %o2
+		call	sun4v_do_mna
+		 mov	%l5, %o1
+		ba,a,pt	%xcc, rtrap
+1:		mov	%l4, %o1
+		mov	%l5, %o2
+		call	mem_address_unaligned
+		 nop
+		ba,a,pt	%xcc, rtrap
+
+2:		sethi	%hi(tlb_type), %g1
+		mov	%l4, %o1
+		lduw	[%g1 + %lo(tlb_type)], %g1
+		mov	%l5, %o2
+		cmp	%g1, 3
+		bne,pt	%icc, 1f
+		 add	%sp, PTREGS_OFF, %o0
+		call	sun4v_data_access_exception
+		 nop
+		ba,a,pt	%xcc, rtrap
+
+1:		call	spitfire_data_access_exception
+		 nop
+		ba,a,pt	%xcc, rtrap
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/kernel/utrap.S linux-libre-4.4.107-gnu/arch/sparc/kernel/utrap.S
--- linux-libre-4.4-gnu/arch/sparc/kernel/utrap.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sparc/kernel/utrap.S	2017-12-20 04:05:01.000000000 -0500
@@ -11,8 +11,7 @@ utrap_trap:		/* %g3=handler,%g4=level */
 	mov		%l4, %o1
         call		bad_trap
 	 add		%sp, PTREGS_OFF, %o0
-	ba,pt		%xcc, rtrap
-	 nop
+	ba,a,pt		%xcc, rtrap
 
 invoke_utrap:
 	sllx		%g3, 3, %g3
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/kernel/vio.c linux-libre-4.4.107-gnu/arch/sparc/kernel/vio.c
--- linux-libre-4.4-gnu/arch/sparc/kernel/vio.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sparc/kernel/vio.c	2017-12-20 04:05:01.000000000 -0500
@@ -284,13 +284,16 @@ static struct vio_dev *vio_create_one(st
 	if (!id) {
 		dev_set_name(&vdev->dev, "%s", bus_id_name);
 		vdev->dev_no = ~(u64)0;
+		vdev->id = ~(u64)0;
 	} else if (!cfg_handle) {
 		dev_set_name(&vdev->dev, "%s-%llu", bus_id_name, *id);
 		vdev->dev_no = *id;
+		vdev->id = ~(u64)0;
 	} else {
 		dev_set_name(&vdev->dev, "%s-%llu-%llu", bus_id_name,
 			     *cfg_handle, *id);
 		vdev->dev_no = *cfg_handle;
+		vdev->id = *id;
 	}
 
 	vdev->dev.parent = parent;
@@ -333,27 +336,84 @@ static void vio_add(struct mdesc_handle
 	(void) vio_create_one(hp, node, &root_vdev->dev);
 }
 
+struct vio_md_node_query {
+	const char *type;
+	u64 dev_no;
+	u64 id;
+};
+
 static int vio_md_node_match(struct device *dev, void *arg)
 {
+	struct vio_md_node_query *query = (struct vio_md_node_query *) arg;
 	struct vio_dev *vdev = to_vio_dev(dev);
 
-	if (vdev->mp == (u64) arg)
-		return 1;
+	if (vdev->dev_no != query->dev_no)
+		return 0;
+	if (vdev->id != query->id)
+		return 0;
+	if (strcmp(vdev->type, query->type))
+		return 0;
 
-	return 0;
+	return 1;
 }
 
 static void vio_remove(struct mdesc_handle *hp, u64 node)
 {
+	const char *type;
+	const u64 *id, *cfg_handle;
+	u64 a;
+	struct vio_md_node_query query;
 	struct device *dev;
 
-	dev = device_find_child(&root_vdev->dev, (void *) node,
+	type = mdesc_get_property(hp, node, "device-type", NULL);
+	if (!type) {
+		type = mdesc_get_property(hp, node, "name", NULL);
+		if (!type)
+			type = mdesc_node_name(hp, node);
+	}
+
+	query.type = type;
+
+	id = mdesc_get_property(hp, node, "id", NULL);
+	cfg_handle = NULL;
+	mdesc_for_each_arc(a, hp, node, MDESC_ARC_TYPE_BACK) {
+		u64 target;
+
+		target = mdesc_arc_target(hp, a);
+		cfg_handle = mdesc_get_property(hp, target,
+						"cfg-handle", NULL);
+		if (cfg_handle)
+			break;
+	}
+
+	if (!id) {
+		query.dev_no = ~(u64)0;
+		query.id = ~(u64)0;
+	} else if (!cfg_handle) {
+		query.dev_no = *id;
+		query.id = ~(u64)0;
+	} else {
+		query.dev_no = *cfg_handle;
+		query.id = *id;
+	}
+
+	dev = device_find_child(&root_vdev->dev, &query,
 				vio_md_node_match);
 	if (dev) {
 		printk(KERN_INFO "VIO: Removing device %s\n", dev_name(dev));
 
 		device_unregister(dev);
 		put_device(dev);
+	} else {
+		if (!id)
+			printk(KERN_ERR "VIO: Removed unknown %s node.\n",
+			       type);
+		else if (!cfg_handle)
+			printk(KERN_ERR "VIO: Removed unknown %s node %llu.\n",
+			       type, *id);
+		else
+			printk(KERN_ERR "VIO: Removed unknown %s node %llu-%llu.\n",
+			       type, *cfg_handle, *id);
 	}
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/kernel/vmlinux.lds.S linux-libre-4.4.107-gnu/arch/sparc/kernel/vmlinux.lds.S
--- linux-libre-4.4-gnu/arch/sparc/kernel/vmlinux.lds.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sparc/kernel/vmlinux.lds.S	2017-12-20 04:05:01.000000000 -0500
@@ -33,6 +33,10 @@ ENTRY(_start)
 jiffies = jiffies_64;
 #endif
 
+#ifdef CONFIG_SPARC64
+ASSERT((swapper_tsb == 0x0000000000408000), "Error: sparc64 early assembler too large")
+#endif
+
 SECTIONS
 {
 #ifdef CONFIG_SPARC64
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/kernel/winfixup.S linux-libre-4.4.107-gnu/arch/sparc/kernel/winfixup.S
--- linux-libre-4.4-gnu/arch/sparc/kernel/winfixup.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sparc/kernel/winfixup.S	2017-12-20 04:05:01.000000000 -0500
@@ -32,8 +32,7 @@ fill_fixup:
 	 rd	%pc, %g7
 	call	do_sparc64_fault
 	 add	%sp, PTREGS_OFF, %o0
-	ba,pt	%xcc, rtrap
-	 nop
+	ba,a,pt	%xcc, rtrap
 
 	/* Be very careful about usage of the trap globals here.
 	 * You cannot touch %g5 as that has the fault information.
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/lib/copy_in_user.S linux-libre-4.4.107-gnu/arch/sparc/lib/copy_in_user.S
--- linux-libre-4.4-gnu/arch/sparc/lib/copy_in_user.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sparc/lib/copy_in_user.S	2017-12-20 04:05:01.000000000 -0500
@@ -8,18 +8,33 @@
 
 #define XCC xcc
 
-#define EX(x,y)			\
+#define EX(x,y,z)		\
 98:	x,y;			\
 	.section __ex_table,"a";\
 	.align 4;		\
-	.word 98b, __retl_one;	\
+	.word 98b, z;		\
 	.text;			\
 	.align 4;
 
+#define EX_O4(x,y) EX(x,y,__retl_o4_plus_8)
+#define EX_O2_4(x,y) EX(x,y,__retl_o2_plus_4)
+#define EX_O2_1(x,y) EX(x,y,__retl_o2_plus_1)
+
 	.register	%g2,#scratch
 	.register	%g3,#scratch
 
 	.text
+__retl_o4_plus_8:
+	add	%o4, %o2, %o4
+	retl
+	 add	%o4, 8, %o0
+__retl_o2_plus_4:
+	retl
+	 add	%o2, 4, %o0
+__retl_o2_plus_1:
+	retl
+	 add	%o2, 1, %o0
+
 	.align	32
 
 	/* Don't try to get too fancy here, just nice and
@@ -44,8 +59,8 @@ ENTRY(___copy_in_user)	/* %o0=dst, %o1=s
 	andn		%o2, 0x7, %o4
 	and		%o2, 0x7, %o2
 1:	subcc		%o4, 0x8, %o4
-	EX(ldxa [%o1] %asi, %o5)
-	EX(stxa %o5, [%o0] %asi)
+	EX_O4(ldxa [%o1] %asi, %o5)
+	EX_O4(stxa %o5, [%o0] %asi)
 	add		%o1, 0x8, %o1
 	bgu,pt		%XCC, 1b
 	 add		%o0, 0x8, %o0
@@ -53,8 +68,8 @@ ENTRY(___copy_in_user)	/* %o0=dst, %o1=s
 	be,pt		%XCC, 1f
 	 nop
 	sub		%o2, 0x4, %o2
-	EX(lduwa [%o1] %asi, %o5)
-	EX(stwa %o5, [%o0] %asi)
+	EX_O2_4(lduwa [%o1] %asi, %o5)
+	EX_O2_4(stwa %o5, [%o0] %asi)
 	add		%o1, 0x4, %o1
 	add		%o0, 0x4, %o0
 1:	cmp		%o2, 0
@@ -70,8 +85,8 @@ ENTRY(___copy_in_user)	/* %o0=dst, %o1=s
 
 82:
 	subcc		%o2, 4, %o2
-	EX(lduwa [%o1] %asi, %g1)
-	EX(stwa %g1, [%o0] %asi)
+	EX_O2_4(lduwa [%o1] %asi, %g1)
+	EX_O2_4(stwa %g1, [%o0] %asi)
 	add		%o1, 4, %o1
 	bgu,pt		%XCC, 82b
 	 add		%o0, 4, %o0
@@ -82,8 +97,8 @@ ENTRY(___copy_in_user)	/* %o0=dst, %o1=s
 	.align	32
 90:
 	subcc		%o2, 1, %o2
-	EX(lduba [%o1] %asi, %g1)
-	EX(stba %g1, [%o0] %asi)
+	EX_O2_1(lduba [%o1] %asi, %g1)
+	EX_O2_1(stba %g1, [%o0] %asi)
 	add		%o1, 1, %o1
 	bgu,pt		%XCC, 90b
 	 add		%o0, 1, %o0
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/lib/GENcopy_from_user.S linux-libre-4.4.107-gnu/arch/sparc/lib/GENcopy_from_user.S
--- linux-libre-4.4-gnu/arch/sparc/lib/GENcopy_from_user.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sparc/lib/GENcopy_from_user.S	2017-12-20 04:05:01.000000000 -0500
@@ -3,11 +3,11 @@
  * Copyright (C) 2007 David S. Miller (davem@davemloft.net)
  */
 
-#define EX_LD(x)		\
+#define EX_LD(x,y)		\
 98:	x;			\
 	.section __ex_table,"a";\
 	.align 4;		\
-	.word 98b, __retl_one;	\
+	.word 98b, y;		\
 	.text;			\
 	.align 4;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/lib/GENcopy_to_user.S linux-libre-4.4.107-gnu/arch/sparc/lib/GENcopy_to_user.S
--- linux-libre-4.4-gnu/arch/sparc/lib/GENcopy_to_user.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sparc/lib/GENcopy_to_user.S	2017-12-20 04:05:01.000000000 -0500
@@ -3,11 +3,11 @@
  * Copyright (C) 2007 David S. Miller (davem@davemloft.net)
  */
 
-#define EX_ST(x)		\
+#define EX_ST(x,y)		\
 98:	x;			\
 	.section __ex_table,"a";\
 	.align 4;		\
-	.word 98b, __retl_one;	\
+	.word 98b, y;		\
 	.text;			\
 	.align 4;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/lib/GENmemcpy.S linux-libre-4.4.107-gnu/arch/sparc/lib/GENmemcpy.S
--- linux-libre-4.4-gnu/arch/sparc/lib/GENmemcpy.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sparc/lib/GENmemcpy.S	2017-12-20 04:05:01.000000000 -0500
@@ -4,21 +4,18 @@
  */
 
 #ifdef __KERNEL__
+#include <linux/linkage.h>
 #define GLOBAL_SPARE	%g7
 #else
 #define GLOBAL_SPARE	%g5
 #endif
 
 #ifndef EX_LD
-#define EX_LD(x)	x
+#define EX_LD(x,y)	x
 #endif
 
 #ifndef EX_ST
-#define EX_ST(x)	x
-#endif
-
-#ifndef EX_RETVAL
-#define EX_RETVAL(x)	x
+#define EX_ST(x,y)	x
 #endif
 
 #ifndef LOAD
@@ -45,6 +42,29 @@
 	.register	%g3,#scratch
 
 	.text
+
+#ifndef EX_RETVAL
+#define EX_RETVAL(x)	x
+ENTRY(GEN_retl_o4_1)
+	add	%o4, %o2, %o4
+	retl
+	 add	%o4, 1, %o0
+ENDPROC(GEN_retl_o4_1)
+ENTRY(GEN_retl_g1_8)
+	add	%g1, %o2, %g1
+	retl
+	 add	%g1, 8, %o0
+ENDPROC(GEN_retl_g1_8)
+ENTRY(GEN_retl_o2_4)
+	retl
+	 add	%o2, 4, %o0
+ENDPROC(GEN_retl_o2_4)
+ENTRY(GEN_retl_o2_1)
+	retl
+	 add	%o2, 1, %o0
+ENDPROC(GEN_retl_o2_1)
+#endif
+
 	.align		64
 
 	.globl	FUNC_NAME
@@ -73,8 +93,8 @@ FUNC_NAME:	/* %o0=dst, %o1=src, %o2=len
 	sub		%g0, %o4, %o4
 	sub		%o2, %o4, %o2
 1:	subcc		%o4, 1, %o4
-	EX_LD(LOAD(ldub, %o1, %g1))
-	EX_ST(STORE(stb, %g1, %o0))
+	EX_LD(LOAD(ldub, %o1, %g1),GEN_retl_o4_1)
+	EX_ST(STORE(stb, %g1, %o0),GEN_retl_o4_1)
 	add		%o1, 1, %o1
 	bne,pt		%XCC, 1b
 	add		%o0, 1, %o0
@@ -82,8 +102,8 @@ FUNC_NAME:	/* %o0=dst, %o1=src, %o2=len
 	andn		%o2, 0x7, %g1
 	sub		%o2, %g1, %o2
 1:	subcc		%g1, 0x8, %g1
-	EX_LD(LOAD(ldx, %o1, %g2))
-	EX_ST(STORE(stx, %g2, %o0))
+	EX_LD(LOAD(ldx, %o1, %g2),GEN_retl_g1_8)
+	EX_ST(STORE(stx, %g2, %o0),GEN_retl_g1_8)
 	add		%o1, 0x8, %o1
 	bne,pt		%XCC, 1b
 	 add		%o0, 0x8, %o0
@@ -100,8 +120,8 @@ FUNC_NAME:	/* %o0=dst, %o1=src, %o2=len
 
 1:
 	subcc		%o2, 4, %o2
-	EX_LD(LOAD(lduw, %o1, %g1))
-	EX_ST(STORE(stw, %g1, %o1 + %o3))
+	EX_LD(LOAD(lduw, %o1, %g1),GEN_retl_o2_4)
+	EX_ST(STORE(stw, %g1, %o1 + %o3),GEN_retl_o2_4)
 	bgu,pt		%XCC, 1b
 	 add		%o1, 4, %o1
 
@@ -111,8 +131,8 @@ FUNC_NAME:	/* %o0=dst, %o1=src, %o2=len
 	.align		32
 90:
 	subcc		%o2, 1, %o2
-	EX_LD(LOAD(ldub, %o1, %g1))
-	EX_ST(STORE(stb, %g1, %o1 + %o3))
+	EX_LD(LOAD(ldub, %o1, %g1),GEN_retl_o2_1)
+	EX_ST(STORE(stb, %g1, %o1 + %o3),GEN_retl_o2_1)
 	bgu,pt		%XCC, 90b
 	 add		%o1, 1, %o1
 	retl
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/lib/Makefile linux-libre-4.4.107-gnu/arch/sparc/lib/Makefile
--- linux-libre-4.4-gnu/arch/sparc/lib/Makefile	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sparc/lib/Makefile	2017-12-20 04:05:01.000000000 -0500
@@ -38,7 +38,7 @@ lib-$(CONFIG_SPARC64) +=  NG4patch.o NG4
 lib-$(CONFIG_SPARC64) += GENmemcpy.o GENcopy_from_user.o GENcopy_to_user.o
 lib-$(CONFIG_SPARC64) += GENpatch.o GENpage.o GENbzero.o
 
-lib-$(CONFIG_SPARC64) += copy_in_user.o user_fixup.o memmove.o
+lib-$(CONFIG_SPARC64) += copy_in_user.o memmove.o
 lib-$(CONFIG_SPARC64) += mcount.o ipcsum.o xor.o hweight.o ffs.o
 
 obj-$(CONFIG_SPARC64) += iomap.o
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/lib/NG2copy_from_user.S linux-libre-4.4.107-gnu/arch/sparc/lib/NG2copy_from_user.S
--- linux-libre-4.4-gnu/arch/sparc/lib/NG2copy_from_user.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sparc/lib/NG2copy_from_user.S	2017-12-20 04:05:01.000000000 -0500
@@ -3,19 +3,19 @@
  * Copyright (C) 2007 David S. Miller (davem@davemloft.net)
  */
 
-#define EX_LD(x)		\
+#define EX_LD(x,y)		\
 98:	x;			\
 	.section __ex_table,"a";\
 	.align 4;		\
-	.word 98b, __retl_one_asi;\
+	.word 98b, y;		\
 	.text;			\
 	.align 4;
 
-#define EX_LD_FP(x)		\
+#define EX_LD_FP(x,y)		\
 98:	x;			\
 	.section __ex_table,"a";\
 	.align 4;		\
-	.word 98b, __retl_one_asi_fp;\
+	.word 98b, y##_fp;	\
 	.text;			\
 	.align 4;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/lib/NG2copy_to_user.S linux-libre-4.4.107-gnu/arch/sparc/lib/NG2copy_to_user.S
--- linux-libre-4.4-gnu/arch/sparc/lib/NG2copy_to_user.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sparc/lib/NG2copy_to_user.S	2017-12-20 04:05:01.000000000 -0500
@@ -3,19 +3,19 @@
  * Copyright (C) 2007 David S. Miller (davem@davemloft.net)
  */
 
-#define EX_ST(x)		\
+#define EX_ST(x,y)		\
 98:	x;			\
 	.section __ex_table,"a";\
 	.align 4;		\
-	.word 98b, __retl_one_asi;\
+	.word 98b, y;		\
 	.text;			\
 	.align 4;
 
-#define EX_ST_FP(x)		\
+#define EX_ST_FP(x,y)		\
 98:	x;			\
 	.section __ex_table,"a";\
 	.align 4;		\
-	.word 98b, __retl_one_asi_fp;\
+	.word 98b, y##_fp;	\
 	.text;			\
 	.align 4;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/lib/NG2memcpy.S linux-libre-4.4.107-gnu/arch/sparc/lib/NG2memcpy.S
--- linux-libre-4.4-gnu/arch/sparc/lib/NG2memcpy.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sparc/lib/NG2memcpy.S	2017-12-20 04:05:01.000000000 -0500
@@ -4,6 +4,7 @@
  */
 
 #ifdef __KERNEL__
+#include <linux/linkage.h>
 #include <asm/visasm.h>
 #include <asm/asi.h>
 #define GLOBAL_SPARE	%g7
@@ -32,21 +33,17 @@
 #endif
 
 #ifndef EX_LD
-#define EX_LD(x)	x
+#define EX_LD(x,y)	x
 #endif
 #ifndef EX_LD_FP
-#define EX_LD_FP(x)	x
+#define EX_LD_FP(x,y)	x
 #endif
 
 #ifndef EX_ST
-#define EX_ST(x)	x
+#define EX_ST(x,y)	x
 #endif
 #ifndef EX_ST_FP
-#define EX_ST_FP(x)	x
-#endif
-
-#ifndef EX_RETVAL
-#define EX_RETVAL(x)	x
+#define EX_ST_FP(x,y)	x
 #endif
 
 #ifndef LOAD
@@ -140,45 +137,110 @@
 	fsrc2		%x6, %f12; \
 	fsrc2		%x7, %f14;
 #define FREG_LOAD_1(base, x0) \
-	EX_LD_FP(LOAD(ldd, base + 0x00, %x0))
+	EX_LD_FP(LOAD(ldd, base + 0x00, %x0), NG2_retl_o2_plus_g1)
 #define FREG_LOAD_2(base, x0, x1) \
-	EX_LD_FP(LOAD(ldd, base + 0x00, %x0)); \
-	EX_LD_FP(LOAD(ldd, base + 0x08, %x1));
+	EX_LD_FP(LOAD(ldd, base + 0x00, %x0), NG2_retl_o2_plus_g1); \
+	EX_LD_FP(LOAD(ldd, base + 0x08, %x1), NG2_retl_o2_plus_g1);
 #define FREG_LOAD_3(base, x0, x1, x2) \
-	EX_LD_FP(LOAD(ldd, base + 0x00, %x0)); \
-	EX_LD_FP(LOAD(ldd, base + 0x08, %x1)); \
-	EX_LD_FP(LOAD(ldd, base + 0x10, %x2));
+	EX_LD_FP(LOAD(ldd, base + 0x00, %x0), NG2_retl_o2_plus_g1); \
+	EX_LD_FP(LOAD(ldd, base + 0x08, %x1), NG2_retl_o2_plus_g1); \
+	EX_LD_FP(LOAD(ldd, base + 0x10, %x2), NG2_retl_o2_plus_g1);
 #define FREG_LOAD_4(base, x0, x1, x2, x3) \
-	EX_LD_FP(LOAD(ldd, base + 0x00, %x0)); \
-	EX_LD_FP(LOAD(ldd, base + 0x08, %x1)); \
-	EX_LD_FP(LOAD(ldd, base + 0x10, %x2)); \
-	EX_LD_FP(LOAD(ldd, base + 0x18, %x3));
+	EX_LD_FP(LOAD(ldd, base + 0x00, %x0), NG2_retl_o2_plus_g1); \
+	EX_LD_FP(LOAD(ldd, base + 0x08, %x1), NG2_retl_o2_plus_g1); \
+	EX_LD_FP(LOAD(ldd, base + 0x10, %x2), NG2_retl_o2_plus_g1); \
+	EX_LD_FP(LOAD(ldd, base + 0x18, %x3), NG2_retl_o2_plus_g1);
 #define FREG_LOAD_5(base, x0, x1, x2, x3, x4) \
-	EX_LD_FP(LOAD(ldd, base + 0x00, %x0)); \
-	EX_LD_FP(LOAD(ldd, base + 0x08, %x1)); \
-	EX_LD_FP(LOAD(ldd, base + 0x10, %x2)); \
-	EX_LD_FP(LOAD(ldd, base + 0x18, %x3)); \
-	EX_LD_FP(LOAD(ldd, base + 0x20, %x4));
+	EX_LD_FP(LOAD(ldd, base + 0x00, %x0), NG2_retl_o2_plus_g1); \
+	EX_LD_FP(LOAD(ldd, base + 0x08, %x1), NG2_retl_o2_plus_g1); \
+	EX_LD_FP(LOAD(ldd, base + 0x10, %x2), NG2_retl_o2_plus_g1); \
+	EX_LD_FP(LOAD(ldd, base + 0x18, %x3), NG2_retl_o2_plus_g1); \
+	EX_LD_FP(LOAD(ldd, base + 0x20, %x4), NG2_retl_o2_plus_g1);
 #define FREG_LOAD_6(base, x0, x1, x2, x3, x4, x5) \
-	EX_LD_FP(LOAD(ldd, base + 0x00, %x0)); \
-	EX_LD_FP(LOAD(ldd, base + 0x08, %x1)); \
-	EX_LD_FP(LOAD(ldd, base + 0x10, %x2)); \
-	EX_LD_FP(LOAD(ldd, base + 0x18, %x3)); \
-	EX_LD_FP(LOAD(ldd, base + 0x20, %x4)); \
-	EX_LD_FP(LOAD(ldd, base + 0x28, %x5));
+	EX_LD_FP(LOAD(ldd, base + 0x00, %x0), NG2_retl_o2_plus_g1); \
+	EX_LD_FP(LOAD(ldd, base + 0x08, %x1), NG2_retl_o2_plus_g1); \
+	EX_LD_FP(LOAD(ldd, base + 0x10, %x2), NG2_retl_o2_plus_g1); \
+	EX_LD_FP(LOAD(ldd, base + 0x18, %x3), NG2_retl_o2_plus_g1); \
+	EX_LD_FP(LOAD(ldd, base + 0x20, %x4), NG2_retl_o2_plus_g1); \
+	EX_LD_FP(LOAD(ldd, base + 0x28, %x5), NG2_retl_o2_plus_g1);
 #define FREG_LOAD_7(base, x0, x1, x2, x3, x4, x5, x6) \
-	EX_LD_FP(LOAD(ldd, base + 0x00, %x0)); \
-	EX_LD_FP(LOAD(ldd, base + 0x08, %x1)); \
-	EX_LD_FP(LOAD(ldd, base + 0x10, %x2)); \
-	EX_LD_FP(LOAD(ldd, base + 0x18, %x3)); \
-	EX_LD_FP(LOAD(ldd, base + 0x20, %x4)); \
-	EX_LD_FP(LOAD(ldd, base + 0x28, %x5)); \
-	EX_LD_FP(LOAD(ldd, base + 0x30, %x6));
+	EX_LD_FP(LOAD(ldd, base + 0x00, %x0), NG2_retl_o2_plus_g1); \
+	EX_LD_FP(LOAD(ldd, base + 0x08, %x1), NG2_retl_o2_plus_g1); \
+	EX_LD_FP(LOAD(ldd, base + 0x10, %x2), NG2_retl_o2_plus_g1); \
+	EX_LD_FP(LOAD(ldd, base + 0x18, %x3), NG2_retl_o2_plus_g1); \
+	EX_LD_FP(LOAD(ldd, base + 0x20, %x4), NG2_retl_o2_plus_g1); \
+	EX_LD_FP(LOAD(ldd, base + 0x28, %x5), NG2_retl_o2_plus_g1); \
+	EX_LD_FP(LOAD(ldd, base + 0x30, %x6), NG2_retl_o2_plus_g1);
 
 	.register	%g2,#scratch
 	.register	%g3,#scratch
 
 	.text
+#ifndef EX_RETVAL
+#define EX_RETVAL(x)	x
+__restore_fp:
+	VISExitHalf
+__restore_asi:
+	retl
+	 wr	%g0, ASI_AIUS, %asi
+ENTRY(NG2_retl_o2)
+	ba,pt	%xcc, __restore_asi
+	 mov	%o2, %o0
+ENDPROC(NG2_retl_o2)
+ENTRY(NG2_retl_o2_plus_1)
+	ba,pt	%xcc, __restore_asi
+	 add	%o2, 1, %o0
+ENDPROC(NG2_retl_o2_plus_1)
+ENTRY(NG2_retl_o2_plus_4)
+	ba,pt	%xcc, __restore_asi
+	 add	%o2, 4, %o0
+ENDPROC(NG2_retl_o2_plus_4)
+ENTRY(NG2_retl_o2_plus_8)
+	ba,pt	%xcc, __restore_asi
+	 add	%o2, 8, %o0
+ENDPROC(NG2_retl_o2_plus_8)
+ENTRY(NG2_retl_o2_plus_o4_plus_1)
+	add	%o4, 1, %o4
+	ba,pt	%xcc, __restore_asi
+	 add	%o2, %o4, %o0
+ENDPROC(NG2_retl_o2_plus_o4_plus_1)
+ENTRY(NG2_retl_o2_plus_o4_plus_8)
+	add	%o4, 8, %o4
+	ba,pt	%xcc, __restore_asi
+	 add	%o2, %o4, %o0
+ENDPROC(NG2_retl_o2_plus_o4_plus_8)
+ENTRY(NG2_retl_o2_plus_o4_plus_16)
+	add	%o4, 16, %o4
+	ba,pt	%xcc, __restore_asi
+	 add	%o2, %o4, %o0
+ENDPROC(NG2_retl_o2_plus_o4_plus_16)
+ENTRY(NG2_retl_o2_plus_g1_fp)
+	ba,pt	%xcc, __restore_fp
+	 add	%o2, %g1, %o0
+ENDPROC(NG2_retl_o2_plus_g1_fp)
+ENTRY(NG2_retl_o2_plus_g1_plus_64_fp)
+	add	%g1, 64, %g1
+	ba,pt	%xcc, __restore_fp
+	 add	%o2, %g1, %o0
+ENDPROC(NG2_retl_o2_plus_g1_plus_64_fp)
+ENTRY(NG2_retl_o2_plus_g1_plus_1)
+	add	%g1, 1, %g1
+	ba,pt	%xcc, __restore_asi
+	 add	%o2, %g1, %o0
+ENDPROC(NG2_retl_o2_plus_g1_plus_1)
+ENTRY(NG2_retl_o2_and_7_plus_o4)
+	and	%o2, 7, %o2
+	ba,pt	%xcc, __restore_asi
+	 add	%o2, %o4, %o0
+ENDPROC(NG2_retl_o2_and_7_plus_o4)
+ENTRY(NG2_retl_o2_and_7_plus_o4_plus_8)
+	and	%o2, 7, %o2
+	add	%o4, 8, %o4
+	ba,pt	%xcc, __restore_asi
+	 add	%o2, %o4, %o0
+ENDPROC(NG2_retl_o2_and_7_plus_o4_plus_8)
+#endif
+
 	.align		64
 
 	.globl	FUNC_NAME
@@ -230,8 +292,8 @@ FUNC_NAME:	/* %o0=dst, %o1=src, %o2=len
 	sub		%g0, %o4, %o4	! bytes to align dst
 	sub		%o2, %o4, %o2
 1:	subcc		%o4, 1, %o4
-	EX_LD(LOAD(ldub, %o1, %g1))
-	EX_ST(STORE(stb, %g1, %o0))
+	EX_LD(LOAD(ldub, %o1, %g1), NG2_retl_o2_plus_o4_plus_1)
+	EX_ST(STORE(stb, %g1, %o0), NG2_retl_o2_plus_o4_plus_1)
 	add		%o1, 1, %o1
 	bne,pt		%XCC, 1b
 	add		%o0, 1, %o0
@@ -281,11 +343,11 @@ FUNC_NAME:	/* %o0=dst, %o1=src, %o2=len
 	 nop
 	/* fall through for 0 < low bits < 8 */
 110:	sub		%o4, 64, %g2
-	EX_LD_FP(LOAD_BLK(%g2, %f0))
-1:	EX_ST_FP(STORE_INIT(%g0, %o4 + %g3))
-	EX_LD_FP(LOAD_BLK(%o4, %f16))
+	EX_LD_FP(LOAD_BLK(%g2, %f0), NG2_retl_o2_plus_g1)
+1:	EX_ST_FP(STORE_INIT(%g0, %o4 + %g3), NG2_retl_o2_plus_g1)
+	EX_LD_FP(LOAD_BLK(%o4, %f16), NG2_retl_o2_plus_g1)
 	FREG_FROB(f0, f2, f4, f6, f8, f10, f12, f14, f16)
-	EX_ST_FP(STORE_BLK(%f0, %o4 + %g3))
+	EX_ST_FP(STORE_BLK(%f0, %o4 + %g3), NG2_retl_o2_plus_g1)
 	FREG_MOVE_8(f16, f18, f20, f22, f24, f26, f28, f30)
 	subcc		%g1, 64, %g1
 	add		%o4, 64, %o4
@@ -296,10 +358,10 @@ FUNC_NAME:	/* %o0=dst, %o1=src, %o2=len
 
 120:	sub		%o4, 56, %g2
 	FREG_LOAD_7(%g2, f0, f2, f4, f6, f8, f10, f12)
-1:	EX_ST_FP(STORE_INIT(%g0, %o4 + %g3))
-	EX_LD_FP(LOAD_BLK(%o4, %f16))
+1:	EX_ST_FP(STORE_INIT(%g0, %o4 + %g3), NG2_retl_o2_plus_g1)
+	EX_LD_FP(LOAD_BLK(%o4, %f16), NG2_retl_o2_plus_g1)
 	FREG_FROB(f0, f2, f4, f6, f8, f10, f12, f16, f18)
-	EX_ST_FP(STORE_BLK(%f0, %o4 + %g3))
+	EX_ST_FP(STORE_BLK(%f0, %o4 + %g3), NG2_retl_o2_plus_g1)
 	FREG_MOVE_7(f18, f20, f22, f24, f26, f28, f30)
 	subcc		%g1, 64, %g1
 	add		%o4, 64, %o4
@@ -310,10 +372,10 @@ FUNC_NAME:	/* %o0=dst, %o1=src, %o2=len
 
 130:	sub		%o4, 48, %g2
 	FREG_LOAD_6(%g2, f0, f2, f4, f6, f8, f10)
-1:	EX_ST_FP(STORE_INIT(%g0, %o4 + %g3))
-	EX_LD_FP(LOAD_BLK(%o4, %f16))
+1:	EX_ST_FP(STORE_INIT(%g0, %o4 + %g3), NG2_retl_o2_plus_g1)
+	EX_LD_FP(LOAD_BLK(%o4, %f16), NG2_retl_o2_plus_g1)
 	FREG_FROB(f0, f2, f4, f6, f8, f10, f16, f18, f20)
-	EX_ST_FP(STORE_BLK(%f0, %o4 + %g3))
+	EX_ST_FP(STORE_BLK(%f0, %o4 + %g3), NG2_retl_o2_plus_g1)
 	FREG_MOVE_6(f20, f22, f24, f26, f28, f30)
 	subcc		%g1, 64, %g1
 	add		%o4, 64, %o4
@@ -324,10 +386,10 @@ FUNC_NAME:	/* %o0=dst, %o1=src, %o2=len
 
 140:	sub		%o4, 40, %g2
 	FREG_LOAD_5(%g2, f0, f2, f4, f6, f8)
-1:	EX_ST_FP(STORE_INIT(%g0, %o4 + %g3))
-	EX_LD_FP(LOAD_BLK(%o4, %f16))
+1:	EX_ST_FP(STORE_INIT(%g0, %o4 + %g3), NG2_retl_o2_plus_g1)
+	EX_LD_FP(LOAD_BLK(%o4, %f16), NG2_retl_o2_plus_g1)
 	FREG_FROB(f0, f2, f4, f6, f8, f16, f18, f20, f22)
-	EX_ST_FP(STORE_BLK(%f0, %o4 + %g3))
+	EX_ST_FP(STORE_BLK(%f0, %o4 + %g3), NG2_retl_o2_plus_g1)
 	FREG_MOVE_5(f22, f24, f26, f28, f30)
 	subcc		%g1, 64, %g1
 	add		%o4, 64, %o4
@@ -338,10 +400,10 @@ FUNC_NAME:	/* %o0=dst, %o1=src, %o2=len
 
 150:	sub		%o4, 32, %g2
 	FREG_LOAD_4(%g2, f0, f2, f4, f6)
-1:	EX_ST_FP(STORE_INIT(%g0, %o4 + %g3))
-	EX_LD_FP(LOAD_BLK(%o4, %f16))
+1:	EX_ST_FP(STORE_INIT(%g0, %o4 + %g3), NG2_retl_o2_plus_g1)
+	EX_LD_FP(LOAD_BLK(%o4, %f16), NG2_retl_o2_plus_g1)
 	FREG_FROB(f0, f2, f4, f6, f16, f18, f20, f22, f24)
-	EX_ST_FP(STORE_BLK(%f0, %o4 + %g3))
+	EX_ST_FP(STORE_BLK(%f0, %o4 + %g3), NG2_retl_o2_plus_g1)
 	FREG_MOVE_4(f24, f26, f28, f30)
 	subcc		%g1, 64, %g1
 	add		%o4, 64, %o4
@@ -352,10 +414,10 @@ FUNC_NAME:	/* %o0=dst, %o1=src, %o2=len
 
 160:	sub		%o4, 24, %g2
 	FREG_LOAD_3(%g2, f0, f2, f4)
-1:	EX_ST_FP(STORE_INIT(%g0, %o4 + %g3))
-	EX_LD_FP(LOAD_BLK(%o4, %f16))
+1:	EX_ST_FP(STORE_INIT(%g0, %o4 + %g3), NG2_retl_o2_plus_g1)
+	EX_LD_FP(LOAD_BLK(%o4, %f16), NG2_retl_o2_plus_g1)
 	FREG_FROB(f0, f2, f4, f16, f18, f20, f22, f24, f26)
-	EX_ST_FP(STORE_BLK(%f0, %o4 + %g3))
+	EX_ST_FP(STORE_BLK(%f0, %o4 + %g3), NG2_retl_o2_plus_g1)
 	FREG_MOVE_3(f26, f28, f30)
 	subcc		%g1, 64, %g1
 	add		%o4, 64, %o4
@@ -366,10 +428,10 @@ FUNC_NAME:	/* %o0=dst, %o1=src, %o2=len
 
 170:	sub		%o4, 16, %g2
 	FREG_LOAD_2(%g2, f0, f2)
-1:	EX_ST_FP(STORE_INIT(%g0, %o4 + %g3))
-	EX_LD_FP(LOAD_BLK(%o4, %f16))
+1:	EX_ST_FP(STORE_INIT(%g0, %o4 + %g3), NG2_retl_o2_plus_g1)
+	EX_LD_FP(LOAD_BLK(%o4, %f16), NG2_retl_o2_plus_g1)
 	FREG_FROB(f0, f2, f16, f18, f20, f22, f24, f26, f28)
-	EX_ST_FP(STORE_BLK(%f0, %o4 + %g3))
+	EX_ST_FP(STORE_BLK(%f0, %o4 + %g3), NG2_retl_o2_plus_g1)
 	FREG_MOVE_2(f28, f30)
 	subcc		%g1, 64, %g1
 	add		%o4, 64, %o4
@@ -380,10 +442,10 @@ FUNC_NAME:	/* %o0=dst, %o1=src, %o2=len
 
 180:	sub		%o4, 8, %g2
 	FREG_LOAD_1(%g2, f0)
-1:	EX_ST_FP(STORE_INIT(%g0, %o4 + %g3))
-	EX_LD_FP(LOAD_BLK(%o4, %f16))
+1:	EX_ST_FP(STORE_INIT(%g0, %o4 + %g3), NG2_retl_o2_plus_g1)
+	EX_LD_FP(LOAD_BLK(%o4, %f16), NG2_retl_o2_plus_g1)
 	FREG_FROB(f0, f16, f18, f20, f22, f24, f26, f28, f30)
-	EX_ST_FP(STORE_BLK(%f0, %o4 + %g3))
+	EX_ST_FP(STORE_BLK(%f0, %o4 + %g3), NG2_retl_o2_plus_g1)
 	FREG_MOVE_1(f30)
 	subcc		%g1, 64, %g1
 	add		%o4, 64, %o4
@@ -393,10 +455,10 @@ FUNC_NAME:	/* %o0=dst, %o1=src, %o2=len
 	 nop
 
 190:
-1:	EX_ST_FP(STORE_INIT(%g0, %o4 + %g3))
+1:	EX_ST_FP(STORE_INIT(%g0, %o4 + %g3), NG2_retl_o2_plus_g1)
 	subcc		%g1, 64, %g1
-	EX_LD_FP(LOAD_BLK(%o4, %f0))
-	EX_ST_FP(STORE_BLK(%f0, %o4 + %g3))
+	EX_LD_FP(LOAD_BLK(%o4, %f0), NG2_retl_o2_plus_g1_plus_64)
+	EX_ST_FP(STORE_BLK(%f0, %o4 + %g3), NG2_retl_o2_plus_g1_plus_64)
 	add		%o4, 64, %o4
 	bne,pt		%xcc, 1b
 	 LOAD(prefetch, %o4 + 64, #one_read)
@@ -423,28 +485,28 @@ FUNC_NAME:	/* %o0=dst, %o1=src, %o2=len
 	andn		%o2, 0xf, %o4
 	and		%o2, 0xf, %o2
 1:	subcc		%o4, 0x10, %o4
-	EX_LD(LOAD(ldx, %o1, %o5))
+	EX_LD(LOAD(ldx, %o1, %o5), NG2_retl_o2_plus_o4_plus_16)
 	add		%o1, 0x08, %o1
-	EX_LD(LOAD(ldx, %o1, %g1))
+	EX_LD(LOAD(ldx, %o1, %g1), NG2_retl_o2_plus_o4_plus_16)
 	sub		%o1, 0x08, %o1
-	EX_ST(STORE(stx, %o5, %o1 + GLOBAL_SPARE))
+	EX_ST(STORE(stx, %o5, %o1 + GLOBAL_SPARE), NG2_retl_o2_plus_o4_plus_16)
 	add		%o1, 0x8, %o1
-	EX_ST(STORE(stx, %g1, %o1 + GLOBAL_SPARE))
+	EX_ST(STORE(stx, %g1, %o1 + GLOBAL_SPARE), NG2_retl_o2_plus_o4_plus_8)
 	bgu,pt		%XCC, 1b
 	 add		%o1, 0x8, %o1
 73:	andcc		%o2, 0x8, %g0
 	be,pt		%XCC, 1f
 	 nop
 	sub		%o2, 0x8, %o2
-	EX_LD(LOAD(ldx, %o1, %o5))
-	EX_ST(STORE(stx, %o5, %o1 + GLOBAL_SPARE))
+	EX_LD(LOAD(ldx, %o1, %o5), NG2_retl_o2_plus_8)
+	EX_ST(STORE(stx, %o5, %o1 + GLOBAL_SPARE), NG2_retl_o2_plus_8)
 	add		%o1, 0x8, %o1
 1:	andcc		%o2, 0x4, %g0
 	be,pt		%XCC, 1f
 	 nop
 	sub		%o2, 0x4, %o2
-	EX_LD(LOAD(lduw, %o1, %o5))
-	EX_ST(STORE(stw, %o5, %o1 + GLOBAL_SPARE))
+	EX_LD(LOAD(lduw, %o1, %o5), NG2_retl_o2_plus_4)
+	EX_ST(STORE(stw, %o5, %o1 + GLOBAL_SPARE), NG2_retl_o2_plus_4)
 	add		%o1, 0x4, %o1
 1:	cmp		%o2, 0
 	be,pt		%XCC, 85f
@@ -460,8 +522,8 @@ FUNC_NAME:	/* %o0=dst, %o1=src, %o2=len
 	sub		%o2, %g1, %o2
 
 1:	subcc		%g1, 1, %g1
-	EX_LD(LOAD(ldub, %o1, %o5))
-	EX_ST(STORE(stb, %o5, %o1 + GLOBAL_SPARE))
+	EX_LD(LOAD(ldub, %o1, %o5), NG2_retl_o2_plus_g1_plus_1)
+	EX_ST(STORE(stb, %o5, %o1 + GLOBAL_SPARE), NG2_retl_o2_plus_g1_plus_1)
 	bgu,pt		%icc, 1b
 	 add		%o1, 1, %o1
 
@@ -477,16 +539,16 @@ FUNC_NAME:	/* %o0=dst, %o1=src, %o2=len
 
 8:	mov		64, GLOBAL_SPARE
 	andn		%o1, 0x7, %o1
-	EX_LD(LOAD(ldx, %o1, %g2))
+	EX_LD(LOAD(ldx, %o1, %g2), NG2_retl_o2)
 	sub		GLOBAL_SPARE, %g1, GLOBAL_SPARE
 	andn		%o2, 0x7, %o4
 	sllx		%g2, %g1, %g2
 1:	add		%o1, 0x8, %o1
-	EX_LD(LOAD(ldx, %o1, %g3))
+	EX_LD(LOAD(ldx, %o1, %g3), NG2_retl_o2_and_7_plus_o4)
 	subcc		%o4, 0x8, %o4
 	srlx		%g3, GLOBAL_SPARE, %o5
 	or		%o5, %g2, %o5
-	EX_ST(STORE(stx, %o5, %o0))
+	EX_ST(STORE(stx, %o5, %o0), NG2_retl_o2_and_7_plus_o4_plus_8)
 	add		%o0, 0x8, %o0
 	bgu,pt		%icc, 1b
 	 sllx		%g3, %g1, %g2
@@ -506,8 +568,8 @@ FUNC_NAME:	/* %o0=dst, %o1=src, %o2=len
 
 1:
 	subcc		%o2, 4, %o2
-	EX_LD(LOAD(lduw, %o1, %g1))
-	EX_ST(STORE(stw, %g1, %o1 + GLOBAL_SPARE))
+	EX_LD(LOAD(lduw, %o1, %g1), NG2_retl_o2_plus_4)
+	EX_ST(STORE(stw, %g1, %o1 + GLOBAL_SPARE), NG2_retl_o2_plus_4)
 	bgu,pt		%XCC, 1b
 	 add		%o1, 4, %o1
 
@@ -517,8 +579,8 @@ FUNC_NAME:	/* %o0=dst, %o1=src, %o2=len
 	.align		32
 90:
 	subcc		%o2, 1, %o2
-	EX_LD(LOAD(ldub, %o1, %g1))
-	EX_ST(STORE(stb, %g1, %o1 + GLOBAL_SPARE))
+	EX_LD(LOAD(ldub, %o1, %g1), NG2_retl_o2_plus_1)
+	EX_ST(STORE(stb, %g1, %o1 + GLOBAL_SPARE), NG2_retl_o2_plus_1)
 	bgu,pt		%XCC, 90b
 	 add		%o1, 1, %o1
 	retl
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/lib/NG4copy_from_user.S linux-libre-4.4.107-gnu/arch/sparc/lib/NG4copy_from_user.S
--- linux-libre-4.4-gnu/arch/sparc/lib/NG4copy_from_user.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sparc/lib/NG4copy_from_user.S	2017-12-20 04:05:01.000000000 -0500
@@ -3,19 +3,19 @@
  * Copyright (C) 2012 David S. Miller (davem@davemloft.net)
  */
 
-#define EX_LD(x)		\
+#define EX_LD(x, y)		\
 98:	x;			\
 	.section __ex_table,"a";\
 	.align 4;		\
-	.word 98b, __retl_one_asi;\
+	.word 98b, y;		\
 	.text;			\
 	.align 4;
 
-#define EX_LD_FP(x)		\
+#define EX_LD_FP(x,y)		\
 98:	x;			\
 	.section __ex_table,"a";\
 	.align 4;		\
-	.word 98b, __retl_one_asi_fp;\
+	.word 98b, y##_fp;	\
 	.text;			\
 	.align 4;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/lib/NG4copy_to_user.S linux-libre-4.4.107-gnu/arch/sparc/lib/NG4copy_to_user.S
--- linux-libre-4.4-gnu/arch/sparc/lib/NG4copy_to_user.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sparc/lib/NG4copy_to_user.S	2017-12-20 04:05:01.000000000 -0500
@@ -3,19 +3,19 @@
  * Copyright (C) 2012 David S. Miller (davem@davemloft.net)
  */
 
-#define EX_ST(x)		\
+#define EX_ST(x,y)		\
 98:	x;			\
 	.section __ex_table,"a";\
 	.align 4;		\
-	.word 98b, __retl_one_asi;\
+	.word 98b, y;		\
 	.text;			\
 	.align 4;
 
-#define EX_ST_FP(x)		\
+#define EX_ST_FP(x,y)		\
 98:	x;			\
 	.section __ex_table,"a";\
 	.align 4;		\
-	.word 98b, __retl_one_asi_fp;\
+	.word 98b, y##_fp;	\
 	.text;			\
 	.align 4;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/lib/NG4memcpy.S linux-libre-4.4.107-gnu/arch/sparc/lib/NG4memcpy.S
--- linux-libre-4.4-gnu/arch/sparc/lib/NG4memcpy.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sparc/lib/NG4memcpy.S	2017-12-20 04:05:01.000000000 -0500
@@ -4,6 +4,7 @@
  */
 
 #ifdef __KERNEL__
+#include <linux/linkage.h>
 #include <asm/visasm.h>
 #include <asm/asi.h>
 #define GLOBAL_SPARE	%g7
@@ -46,22 +47,19 @@
 #endif
 
 #ifndef EX_LD
-#define EX_LD(x)	x
+#define EX_LD(x,y)	x
 #endif
 #ifndef EX_LD_FP
-#define EX_LD_FP(x)	x
+#define EX_LD_FP(x,y)	x
 #endif
 
 #ifndef EX_ST
-#define EX_ST(x)	x
+#define EX_ST(x,y)	x
 #endif
 #ifndef EX_ST_FP
-#define EX_ST_FP(x)	x
+#define EX_ST_FP(x,y)	x
 #endif
 
-#ifndef EX_RETVAL
-#define EX_RETVAL(x)	x
-#endif
 
 #ifndef LOAD
 #define LOAD(type,addr,dest)	type [addr], dest
@@ -94,6 +92,158 @@
 	.register	%g3,#scratch
 
 	.text
+#ifndef EX_RETVAL
+#define EX_RETVAL(x)	x
+__restore_asi_fp:
+	VISExitHalf
+__restore_asi:
+	retl
+	 wr	%g0, ASI_AIUS, %asi
+
+ENTRY(NG4_retl_o2)
+	ba,pt	%xcc, __restore_asi
+	 mov	%o2, %o0
+ENDPROC(NG4_retl_o2)
+ENTRY(NG4_retl_o2_plus_1)
+	ba,pt	%xcc, __restore_asi
+	 add	%o2, 1, %o0
+ENDPROC(NG4_retl_o2_plus_1)
+ENTRY(NG4_retl_o2_plus_4)
+	ba,pt	%xcc, __restore_asi
+	 add	%o2, 4, %o0
+ENDPROC(NG4_retl_o2_plus_4)
+ENTRY(NG4_retl_o2_plus_o5)
+	ba,pt	%xcc, __restore_asi
+	 add	%o2, %o5, %o0
+ENDPROC(NG4_retl_o2_plus_o5)
+ENTRY(NG4_retl_o2_plus_o5_plus_4)
+	add	%o5, 4, %o5
+	ba,pt	%xcc, __restore_asi
+	 add	%o2, %o5, %o0
+ENDPROC(NG4_retl_o2_plus_o5_plus_4)
+ENTRY(NG4_retl_o2_plus_o5_plus_8)
+	add	%o5, 8, %o5
+	ba,pt	%xcc, __restore_asi
+	 add	%o2, %o5, %o0
+ENDPROC(NG4_retl_o2_plus_o5_plus_8)
+ENTRY(NG4_retl_o2_plus_o5_plus_16)
+	add	%o5, 16, %o5
+	ba,pt	%xcc, __restore_asi
+	 add	%o2, %o5, %o0
+ENDPROC(NG4_retl_o2_plus_o5_plus_16)
+ENTRY(NG4_retl_o2_plus_o5_plus_24)
+	add	%o5, 24, %o5
+	ba,pt	%xcc, __restore_asi
+	 add	%o2, %o5, %o0
+ENDPROC(NG4_retl_o2_plus_o5_plus_24)
+ENTRY(NG4_retl_o2_plus_o5_plus_32)
+	add	%o5, 32, %o5
+	ba,pt	%xcc, __restore_asi
+	 add	%o2, %o5, %o0
+ENDPROC(NG4_retl_o2_plus_o5_plus_32)
+ENTRY(NG4_retl_o2_plus_g1)
+	ba,pt	%xcc, __restore_asi
+	 add	%o2, %g1, %o0
+ENDPROC(NG4_retl_o2_plus_g1)
+ENTRY(NG4_retl_o2_plus_g1_plus_1)
+	add	%g1, 1, %g1
+	ba,pt	%xcc, __restore_asi
+	 add	%o2, %g1, %o0
+ENDPROC(NG4_retl_o2_plus_g1_plus_1)
+ENTRY(NG4_retl_o2_plus_g1_plus_8)
+	add	%g1, 8, %g1
+	ba,pt	%xcc, __restore_asi
+	 add	%o2, %g1, %o0
+ENDPROC(NG4_retl_o2_plus_g1_plus_8)
+ENTRY(NG4_retl_o2_plus_o4)
+	ba,pt	%xcc, __restore_asi
+	 add	%o2, %o4, %o0
+ENDPROC(NG4_retl_o2_plus_o4)
+ENTRY(NG4_retl_o2_plus_o4_plus_8)
+	add	%o4, 8, %o4
+	ba,pt	%xcc, __restore_asi
+	 add	%o2, %o4, %o0
+ENDPROC(NG4_retl_o2_plus_o4_plus_8)
+ENTRY(NG4_retl_o2_plus_o4_plus_16)
+	add	%o4, 16, %o4
+	ba,pt	%xcc, __restore_asi
+	 add	%o2, %o4, %o0
+ENDPROC(NG4_retl_o2_plus_o4_plus_16)
+ENTRY(NG4_retl_o2_plus_o4_plus_24)
+	add	%o4, 24, %o4
+	ba,pt	%xcc, __restore_asi
+	 add	%o2, %o4, %o0
+ENDPROC(NG4_retl_o2_plus_o4_plus_24)
+ENTRY(NG4_retl_o2_plus_o4_plus_32)
+	add	%o4, 32, %o4
+	ba,pt	%xcc, __restore_asi
+	 add	%o2, %o4, %o0
+ENDPROC(NG4_retl_o2_plus_o4_plus_32)
+ENTRY(NG4_retl_o2_plus_o4_plus_40)
+	add	%o4, 40, %o4
+	ba,pt	%xcc, __restore_asi
+	 add	%o2, %o4, %o0
+ENDPROC(NG4_retl_o2_plus_o4_plus_40)
+ENTRY(NG4_retl_o2_plus_o4_plus_48)
+	add	%o4, 48, %o4
+	ba,pt	%xcc, __restore_asi
+	 add	%o2, %o4, %o0
+ENDPROC(NG4_retl_o2_plus_o4_plus_48)
+ENTRY(NG4_retl_o2_plus_o4_plus_56)
+	add	%o4, 56, %o4
+	ba,pt	%xcc, __restore_asi
+	 add	%o2, %o4, %o0
+ENDPROC(NG4_retl_o2_plus_o4_plus_56)
+ENTRY(NG4_retl_o2_plus_o4_plus_64)
+	add	%o4, 64, %o4
+	ba,pt	%xcc, __restore_asi
+	 add	%o2, %o4, %o0
+ENDPROC(NG4_retl_o2_plus_o4_plus_64)
+ENTRY(NG4_retl_o2_plus_o4_fp)
+	ba,pt	%xcc, __restore_asi_fp
+	 add	%o2, %o4, %o0
+ENDPROC(NG4_retl_o2_plus_o4_fp)
+ENTRY(NG4_retl_o2_plus_o4_plus_8_fp)
+	add	%o4, 8, %o4
+	ba,pt	%xcc, __restore_asi_fp
+	 add	%o2, %o4, %o0
+ENDPROC(NG4_retl_o2_plus_o4_plus_8_fp)
+ENTRY(NG4_retl_o2_plus_o4_plus_16_fp)
+	add	%o4, 16, %o4
+	ba,pt	%xcc, __restore_asi_fp
+	 add	%o2, %o4, %o0
+ENDPROC(NG4_retl_o2_plus_o4_plus_16_fp)
+ENTRY(NG4_retl_o2_plus_o4_plus_24_fp)
+	add	%o4, 24, %o4
+	ba,pt	%xcc, __restore_asi_fp
+	 add	%o2, %o4, %o0
+ENDPROC(NG4_retl_o2_plus_o4_plus_24_fp)
+ENTRY(NG4_retl_o2_plus_o4_plus_32_fp)
+	add	%o4, 32, %o4
+	ba,pt	%xcc, __restore_asi_fp
+	 add	%o2, %o4, %o0
+ENDPROC(NG4_retl_o2_plus_o4_plus_32_fp)
+ENTRY(NG4_retl_o2_plus_o4_plus_40_fp)
+	add	%o4, 40, %o4
+	ba,pt	%xcc, __restore_asi_fp
+	 add	%o2, %o4, %o0
+ENDPROC(NG4_retl_o2_plus_o4_plus_40_fp)
+ENTRY(NG4_retl_o2_plus_o4_plus_48_fp)
+	add	%o4, 48, %o4
+	ba,pt	%xcc, __restore_asi_fp
+	 add	%o2, %o4, %o0
+ENDPROC(NG4_retl_o2_plus_o4_plus_48_fp)
+ENTRY(NG4_retl_o2_plus_o4_plus_56_fp)
+	add	%o4, 56, %o4
+	ba,pt	%xcc, __restore_asi_fp
+	 add	%o2, %o4, %o0
+ENDPROC(NG4_retl_o2_plus_o4_plus_56_fp)
+ENTRY(NG4_retl_o2_plus_o4_plus_64_fp)
+	add	%o4, 64, %o4
+	ba,pt	%xcc, __restore_asi_fp
+	 add	%o2, %o4, %o0
+ENDPROC(NG4_retl_o2_plus_o4_plus_64_fp)
+#endif
 	.align		64
 
 	.globl	FUNC_NAME
@@ -124,12 +274,13 @@ FUNC_NAME:	/* %o0=dst, %o1=src, %o2=len
 	brz,pt		%g1, 51f
 	 sub		%o2, %g1, %o2
 
-1:	EX_LD(LOAD(ldub, %o1 + 0x00, %g2))
+
+1:	EX_LD(LOAD(ldub, %o1 + 0x00, %g2), NG4_retl_o2_plus_g1)
 	add		%o1, 1, %o1
 	subcc		%g1, 1, %g1
 	add		%o0, 1, %o0
 	bne,pt		%icc, 1b
-	 EX_ST(STORE(stb, %g2, %o0 - 0x01))
+	 EX_ST(STORE(stb, %g2, %o0 - 0x01), NG4_retl_o2_plus_g1_plus_1)
 
 51:	LOAD(prefetch, %o1 + 0x040, #n_reads_strong)
 	LOAD(prefetch, %o1 + 0x080, #n_reads_strong)
@@ -154,43 +305,43 @@ FUNC_NAME:	/* %o0=dst, %o1=src, %o2=len
 	brz,pt		%g1, .Llarge_aligned
 	 sub		%o2, %g1, %o2
 
-1:	EX_LD(LOAD(ldx, %o1 + 0x00, %g2))
+1:	EX_LD(LOAD(ldx, %o1 + 0x00, %g2), NG4_retl_o2_plus_g1)
 	add		%o1, 8, %o1
 	subcc		%g1, 8, %g1
 	add		%o0, 8, %o0
 	bne,pt		%icc, 1b
-	 EX_ST(STORE(stx, %g2, %o0 - 0x08))
+	 EX_ST(STORE(stx, %g2, %o0 - 0x08), NG4_retl_o2_plus_g1_plus_8)
 
 .Llarge_aligned:
 	/* len >= 0x80 && src 8-byte aligned && dest 8-byte aligned */
 	andn		%o2, 0x3f, %o4
 	sub		%o2, %o4, %o2
 
-1:	EX_LD(LOAD(ldx, %o1 + 0x00, %g1))
+1:	EX_LD(LOAD(ldx, %o1 + 0x00, %g1), NG4_retl_o2_plus_o4)
 	add		%o1, 0x40, %o1
-	EX_LD(LOAD(ldx, %o1 - 0x38, %g2))
+	EX_LD(LOAD(ldx, %o1 - 0x38, %g2), NG4_retl_o2_plus_o4)
 	subcc		%o4, 0x40, %o4
-	EX_LD(LOAD(ldx, %o1 - 0x30, %g3))
-	EX_LD(LOAD(ldx, %o1 - 0x28, GLOBAL_SPARE))
-	EX_LD(LOAD(ldx, %o1 - 0x20, %o5))
-	EX_ST(STORE_INIT(%g1, %o0))
+	EX_LD(LOAD(ldx, %o1 - 0x30, %g3), NG4_retl_o2_plus_o4_plus_64)
+	EX_LD(LOAD(ldx, %o1 - 0x28, GLOBAL_SPARE), NG4_retl_o2_plus_o4_plus_64)
+	EX_LD(LOAD(ldx, %o1 - 0x20, %o5), NG4_retl_o2_plus_o4_plus_64)
+	EX_ST(STORE_INIT(%g1, %o0), NG4_retl_o2_plus_o4_plus_64)
 	add		%o0, 0x08, %o0
-	EX_ST(STORE_INIT(%g2, %o0))
+	EX_ST(STORE_INIT(%g2, %o0), NG4_retl_o2_plus_o4_plus_56)
 	add		%o0, 0x08, %o0
-	EX_LD(LOAD(ldx, %o1 - 0x18, %g2))
-	EX_ST(STORE_INIT(%g3, %o0))
+	EX_LD(LOAD(ldx, %o1 - 0x18, %g2), NG4_retl_o2_plus_o4_plus_48)
+	EX_ST(STORE_INIT(%g3, %o0), NG4_retl_o2_plus_o4_plus_48)
 	add		%o0, 0x08, %o0
-	EX_LD(LOAD(ldx, %o1 - 0x10, %g3))
-	EX_ST(STORE_INIT(GLOBAL_SPARE, %o0))
+	EX_LD(LOAD(ldx, %o1 - 0x10, %g3), NG4_retl_o2_plus_o4_plus_40)
+	EX_ST(STORE_INIT(GLOBAL_SPARE, %o0), NG4_retl_o2_plus_o4_plus_40)
 	add		%o0, 0x08, %o0
-	EX_LD(LOAD(ldx, %o1 - 0x08, GLOBAL_SPARE))
-	EX_ST(STORE_INIT(%o5, %o0))
+	EX_LD(LOAD(ldx, %o1 - 0x08, GLOBAL_SPARE), NG4_retl_o2_plus_o4_plus_32)
+	EX_ST(STORE_INIT(%o5, %o0), NG4_retl_o2_plus_o4_plus_32)
 	add		%o0, 0x08, %o0
-	EX_ST(STORE_INIT(%g2, %o0))
+	EX_ST(STORE_INIT(%g2, %o0), NG4_retl_o2_plus_o4_plus_24)
 	add		%o0, 0x08, %o0
-	EX_ST(STORE_INIT(%g3, %o0))
+	EX_ST(STORE_INIT(%g3, %o0), NG4_retl_o2_plus_o4_plus_16)
 	add		%o0, 0x08, %o0
-	EX_ST(STORE_INIT(GLOBAL_SPARE, %o0))
+	EX_ST(STORE_INIT(GLOBAL_SPARE, %o0), NG4_retl_o2_plus_o4_plus_8)
 	add		%o0, 0x08, %o0
 	bne,pt		%icc, 1b
 	 LOAD(prefetch, %o1 + 0x200, #n_reads_strong)
@@ -216,17 +367,17 @@ FUNC_NAME:	/* %o0=dst, %o1=src, %o2=len
 	sub		%o2, %o4, %o2
 	alignaddr	%o1, %g0, %g1
 	add		%o1, %o4, %o1
-	EX_LD_FP(LOAD(ldd, %g1 + 0x00, %f0))
-1:	EX_LD_FP(LOAD(ldd, %g1 + 0x08, %f2))
+	EX_LD_FP(LOAD(ldd, %g1 + 0x00, %f0), NG4_retl_o2_plus_o4)
+1:	EX_LD_FP(LOAD(ldd, %g1 + 0x08, %f2), NG4_retl_o2_plus_o4)
 	subcc		%o4, 0x40, %o4
-	EX_LD_FP(LOAD(ldd, %g1 + 0x10, %f4))
-	EX_LD_FP(LOAD(ldd, %g1 + 0x18, %f6))
-	EX_LD_FP(LOAD(ldd, %g1 + 0x20, %f8))
-	EX_LD_FP(LOAD(ldd, %g1 + 0x28, %f10))
-	EX_LD_FP(LOAD(ldd, %g1 + 0x30, %f12))
-	EX_LD_FP(LOAD(ldd, %g1 + 0x38, %f14))
+	EX_LD_FP(LOAD(ldd, %g1 + 0x10, %f4), NG4_retl_o2_plus_o4_plus_64)
+	EX_LD_FP(LOAD(ldd, %g1 + 0x18, %f6), NG4_retl_o2_plus_o4_plus_64)
+	EX_LD_FP(LOAD(ldd, %g1 + 0x20, %f8), NG4_retl_o2_plus_o4_plus_64)
+	EX_LD_FP(LOAD(ldd, %g1 + 0x28, %f10), NG4_retl_o2_plus_o4_plus_64)
+	EX_LD_FP(LOAD(ldd, %g1 + 0x30, %f12), NG4_retl_o2_plus_o4_plus_64)
+	EX_LD_FP(LOAD(ldd, %g1 + 0x38, %f14), NG4_retl_o2_plus_o4_plus_64)
 	faligndata	%f0, %f2, %f16
-	EX_LD_FP(LOAD(ldd, %g1 + 0x40, %f0))
+	EX_LD_FP(LOAD(ldd, %g1 + 0x40, %f0), NG4_retl_o2_plus_o4_plus_64)
 	faligndata	%f2, %f4, %f18
 	add		%g1, 0x40, %g1
 	faligndata	%f4, %f6, %f20
@@ -235,14 +386,14 @@ FUNC_NAME:	/* %o0=dst, %o1=src, %o2=len
 	faligndata	%f10, %f12, %f26
 	faligndata	%f12, %f14, %f28
 	faligndata	%f14, %f0, %f30
-	EX_ST_FP(STORE(std, %f16, %o0 + 0x00))
-	EX_ST_FP(STORE(std, %f18, %o0 + 0x08))
-	EX_ST_FP(STORE(std, %f20, %o0 + 0x10))
-	EX_ST_FP(STORE(std, %f22, %o0 + 0x18))
-	EX_ST_FP(STORE(std, %f24, %o0 + 0x20))
-	EX_ST_FP(STORE(std, %f26, %o0 + 0x28))
-	EX_ST_FP(STORE(std, %f28, %o0 + 0x30))
-	EX_ST_FP(STORE(std, %f30, %o0 + 0x38))
+	EX_ST_FP(STORE(std, %f16, %o0 + 0x00), NG4_retl_o2_plus_o4_plus_64)
+	EX_ST_FP(STORE(std, %f18, %o0 + 0x08), NG4_retl_o2_plus_o4_plus_56)
+	EX_ST_FP(STORE(std, %f20, %o0 + 0x10), NG4_retl_o2_plus_o4_plus_48)
+	EX_ST_FP(STORE(std, %f22, %o0 + 0x18), NG4_retl_o2_plus_o4_plus_40)
+	EX_ST_FP(STORE(std, %f24, %o0 + 0x20), NG4_retl_o2_plus_o4_plus_32)
+	EX_ST_FP(STORE(std, %f26, %o0 + 0x28), NG4_retl_o2_plus_o4_plus_24)
+	EX_ST_FP(STORE(std, %f28, %o0 + 0x30), NG4_retl_o2_plus_o4_plus_16)
+	EX_ST_FP(STORE(std, %f30, %o0 + 0x38), NG4_retl_o2_plus_o4_plus_8)
 	add		%o0, 0x40, %o0
 	bne,pt		%icc, 1b
 	 LOAD(prefetch, %g1 + 0x200, #n_reads_strong)
@@ -270,37 +421,38 @@ FUNC_NAME:	/* %o0=dst, %o1=src, %o2=len
 	andncc		%o2, 0x20 - 1, %o5
 	be,pn		%icc, 2f
 	 sub		%o2, %o5, %o2
-1:	EX_LD(LOAD(ldx, %o1 + 0x00, %g1))
-	EX_LD(LOAD(ldx, %o1 + 0x08, %g2))
-	EX_LD(LOAD(ldx, %o1 + 0x10, GLOBAL_SPARE))
-	EX_LD(LOAD(ldx, %o1 + 0x18, %o4))
+1:	EX_LD(LOAD(ldx, %o1 + 0x00, %g1), NG4_retl_o2_plus_o5)
+	EX_LD(LOAD(ldx, %o1 + 0x08, %g2), NG4_retl_o2_plus_o5)
+	EX_LD(LOAD(ldx, %o1 + 0x10, GLOBAL_SPARE), NG4_retl_o2_plus_o5)
+	EX_LD(LOAD(ldx, %o1 + 0x18, %o4), NG4_retl_o2_plus_o5)
 	add		%o1, 0x20, %o1
 	subcc		%o5, 0x20, %o5
-	EX_ST(STORE(stx, %g1, %o0 + 0x00))
-	EX_ST(STORE(stx, %g2, %o0 + 0x08))
-	EX_ST(STORE(stx, GLOBAL_SPARE, %o0 + 0x10))
-	EX_ST(STORE(stx, %o4, %o0 + 0x18))
+	EX_ST(STORE(stx, %g1, %o0 + 0x00), NG4_retl_o2_plus_o5_plus_32)
+	EX_ST(STORE(stx, %g2, %o0 + 0x08), NG4_retl_o2_plus_o5_plus_24)
+	EX_ST(STORE(stx, GLOBAL_SPARE, %o0 + 0x10), NG4_retl_o2_plus_o5_plus_24)
+	EX_ST(STORE(stx, %o4, %o0 + 0x18), NG4_retl_o2_plus_o5_plus_8)
 	bne,pt		%icc, 1b
 	 add		%o0, 0x20, %o0
 2:	andcc		%o2, 0x18, %o5
 	be,pt		%icc, 3f
 	 sub		%o2, %o5, %o2
-1:	EX_LD(LOAD(ldx, %o1 + 0x00, %g1))
+
+1:	EX_LD(LOAD(ldx, %o1 + 0x00, %g1), NG4_retl_o2_plus_o5)
 	add		%o1, 0x08, %o1
 	add		%o0, 0x08, %o0
 	subcc		%o5, 0x08, %o5
 	bne,pt		%icc, 1b
-	 EX_ST(STORE(stx, %g1, %o0 - 0x08))
+	 EX_ST(STORE(stx, %g1, %o0 - 0x08), NG4_retl_o2_plus_o5_plus_8)
 3:	brz,pt		%o2, .Lexit
 	 cmp		%o2, 0x04
 	bl,pn		%icc, .Ltiny
 	 nop
-	EX_LD(LOAD(lduw, %o1 + 0x00, %g1))
+	EX_LD(LOAD(lduw, %o1 + 0x00, %g1), NG4_retl_o2)
 	add		%o1, 0x04, %o1
 	add		%o0, 0x04, %o0
 	subcc		%o2, 0x04, %o2
 	bne,pn		%icc, .Ltiny
-	 EX_ST(STORE(stw, %g1, %o0 - 0x04))
+	 EX_ST(STORE(stw, %g1, %o0 - 0x04), NG4_retl_o2_plus_4)
 	ba,a,pt		%icc, .Lexit
 .Lmedium_unaligned:
 	/* First get dest 8 byte aligned.  */
@@ -309,12 +461,12 @@ FUNC_NAME:	/* %o0=dst, %o1=src, %o2=len
 	brz,pt		%g1, 2f
 	 sub		%o2, %g1, %o2
 
-1:	EX_LD(LOAD(ldub, %o1 + 0x00, %g2))
+1:	EX_LD(LOAD(ldub, %o1 + 0x00, %g2), NG4_retl_o2_plus_g1)
 	add		%o1, 1, %o1
 	subcc		%g1, 1, %g1
 	add		%o0, 1, %o0
 	bne,pt		%icc, 1b
-	 EX_ST(STORE(stb, %g2, %o0 - 0x01))
+	 EX_ST(STORE(stb, %g2, %o0 - 0x01), NG4_retl_o2_plus_g1_plus_1)
 2:
 	and		%o1, 0x7, %g1
 	brz,pn		%g1, .Lmedium_noprefetch
@@ -322,16 +474,16 @@ FUNC_NAME:	/* %o0=dst, %o1=src, %o2=len
 	mov		64, %g2
 	sub		%g2, %g1, %g2
 	andn		%o1, 0x7, %o1
-	EX_LD(LOAD(ldx, %o1 + 0x00, %o4))
+	EX_LD(LOAD(ldx, %o1 + 0x00, %o4), NG4_retl_o2)
 	sllx		%o4, %g1, %o4
 	andn		%o2, 0x08 - 1, %o5
 	sub		%o2, %o5, %o2
-1:	EX_LD(LOAD(ldx, %o1 + 0x08, %g3))
+1:	EX_LD(LOAD(ldx, %o1 + 0x08, %g3), NG4_retl_o2_plus_o5)
 	add		%o1, 0x08, %o1
 	subcc		%o5, 0x08, %o5
 	srlx		%g3, %g2, GLOBAL_SPARE
 	or		GLOBAL_SPARE, %o4, GLOBAL_SPARE
-	EX_ST(STORE(stx, GLOBAL_SPARE, %o0 + 0x00))
+	EX_ST(STORE(stx, GLOBAL_SPARE, %o0 + 0x00), NG4_retl_o2_plus_o5_plus_8)
 	add		%o0, 0x08, %o0
 	bne,pt		%icc, 1b
 	 sllx		%g3, %g1, %o4
@@ -342,17 +494,17 @@ FUNC_NAME:	/* %o0=dst, %o1=src, %o2=len
 	ba,pt		%icc, .Lsmall_unaligned
 
 .Ltiny:
-	EX_LD(LOAD(ldub, %o1 + 0x00, %g1))
+	EX_LD(LOAD(ldub, %o1 + 0x00, %g1), NG4_retl_o2)
 	subcc		%o2, 1, %o2
 	be,pn		%icc, .Lexit
-	 EX_ST(STORE(stb, %g1, %o0 + 0x00))
-	EX_LD(LOAD(ldub, %o1 + 0x01, %g1))
+	 EX_ST(STORE(stb, %g1, %o0 + 0x00), NG4_retl_o2_plus_1)
+	EX_LD(LOAD(ldub, %o1 + 0x01, %g1), NG4_retl_o2)
 	subcc		%o2, 1, %o2
 	be,pn		%icc, .Lexit
-	 EX_ST(STORE(stb, %g1, %o0 + 0x01))
-	EX_LD(LOAD(ldub, %o1 + 0x02, %g1))
+	 EX_ST(STORE(stb, %g1, %o0 + 0x01), NG4_retl_o2_plus_1)
+	EX_LD(LOAD(ldub, %o1 + 0x02, %g1), NG4_retl_o2)
 	ba,pt		%icc, .Lexit
-	 EX_ST(STORE(stb, %g1, %o0 + 0x02))
+	 EX_ST(STORE(stb, %g1, %o0 + 0x02), NG4_retl_o2)
 
 .Lsmall:
 	andcc		%g2, 0x3, %g0
@@ -360,22 +512,22 @@ FUNC_NAME:	/* %o0=dst, %o1=src, %o2=len
 	 andn		%o2, 0x4 - 1, %o5
 	sub		%o2, %o5, %o2
 1:
-	EX_LD(LOAD(lduw, %o1 + 0x00, %g1))
+	EX_LD(LOAD(lduw, %o1 + 0x00, %g1), NG4_retl_o2_plus_o5)
 	add		%o1, 0x04, %o1
 	subcc		%o5, 0x04, %o5
 	add		%o0, 0x04, %o0
 	bne,pt		%icc, 1b
-	 EX_ST(STORE(stw, %g1, %o0 - 0x04))
+	 EX_ST(STORE(stw, %g1, %o0 - 0x04), NG4_retl_o2_plus_o5_plus_4)
 	brz,pt		%o2, .Lexit
 	 nop
 	ba,a,pt		%icc, .Ltiny
 
 .Lsmall_unaligned:
-1:	EX_LD(LOAD(ldub, %o1 + 0x00, %g1))
+1:	EX_LD(LOAD(ldub, %o1 + 0x00, %g1), NG4_retl_o2)
 	add		%o1, 1, %o1
 	add		%o0, 1, %o0
 	subcc		%o2, 1, %o2
 	bne,pt		%icc, 1b
-	 EX_ST(STORE(stb, %g1, %o0 - 0x01))
+	 EX_ST(STORE(stb, %g1, %o0 - 0x01), NG4_retl_o2_plus_1)
 	ba,a,pt		%icc, .Lexit
 	.size		FUNC_NAME, .-FUNC_NAME
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/lib/NGcopy_from_user.S linux-libre-4.4.107-gnu/arch/sparc/lib/NGcopy_from_user.S
--- linux-libre-4.4-gnu/arch/sparc/lib/NGcopy_from_user.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sparc/lib/NGcopy_from_user.S	2017-12-20 04:05:01.000000000 -0500
@@ -3,11 +3,11 @@
  * Copyright (C) 2006, 2007 David S. Miller (davem@davemloft.net)
  */
 
-#define EX_LD(x)		\
+#define EX_LD(x,y)		\
 98:	x;			\
 	.section __ex_table,"a";\
 	.align 4;		\
-	.word 98b, __ret_one_asi;\
+	.word 98b, y;		\
 	.text;			\
 	.align 4;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/lib/NGcopy_to_user.S linux-libre-4.4.107-gnu/arch/sparc/lib/NGcopy_to_user.S
--- linux-libre-4.4-gnu/arch/sparc/lib/NGcopy_to_user.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sparc/lib/NGcopy_to_user.S	2017-12-20 04:05:01.000000000 -0500
@@ -3,11 +3,11 @@
  * Copyright (C) 2006, 2007 David S. Miller (davem@davemloft.net)
  */
 
-#define EX_ST(x)		\
+#define EX_ST(x,y)		\
 98:	x;			\
 	.section __ex_table,"a";\
 	.align 4;		\
-	.word 98b, __ret_one_asi;\
+	.word 98b, y;		\
 	.text;			\
 	.align 4;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/lib/NGmemcpy.S linux-libre-4.4.107-gnu/arch/sparc/lib/NGmemcpy.S
--- linux-libre-4.4-gnu/arch/sparc/lib/NGmemcpy.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sparc/lib/NGmemcpy.S	2017-12-20 04:05:01.000000000 -0500
@@ -4,6 +4,7 @@
  */
 
 #ifdef __KERNEL__
+#include <linux/linkage.h>
 #include <asm/asi.h>
 #include <asm/thread_info.h>
 #define GLOBAL_SPARE	%g7
@@ -27,15 +28,11 @@
 #endif
 
 #ifndef EX_LD
-#define EX_LD(x)	x
+#define EX_LD(x,y)	x
 #endif
 
 #ifndef EX_ST
-#define EX_ST(x)	x
-#endif
-
-#ifndef EX_RETVAL
-#define EX_RETVAL(x)	x
+#define EX_ST(x,y)	x
 #endif
 
 #ifndef LOAD
@@ -79,6 +76,92 @@
 	.register	%g3,#scratch
 
 	.text
+#ifndef EX_RETVAL
+#define EX_RETVAL(x)	x
+__restore_asi:
+	ret
+	wr	%g0, ASI_AIUS, %asi
+	 restore
+ENTRY(NG_ret_i2_plus_i4_plus_1)
+	ba,pt	%xcc, __restore_asi
+	 add	%i2, %i5, %i0
+ENDPROC(NG_ret_i2_plus_i4_plus_1)
+ENTRY(NG_ret_i2_plus_g1)
+	ba,pt	%xcc, __restore_asi
+	 add	%i2, %g1, %i0
+ENDPROC(NG_ret_i2_plus_g1)
+ENTRY(NG_ret_i2_plus_g1_minus_8)
+	sub	%g1, 8, %g1
+	ba,pt	%xcc, __restore_asi
+	 add	%i2, %g1, %i0
+ENDPROC(NG_ret_i2_plus_g1_minus_8)
+ENTRY(NG_ret_i2_plus_g1_minus_16)
+	sub	%g1, 16, %g1
+	ba,pt	%xcc, __restore_asi
+	 add	%i2, %g1, %i0
+ENDPROC(NG_ret_i2_plus_g1_minus_16)
+ENTRY(NG_ret_i2_plus_g1_minus_24)
+	sub	%g1, 24, %g1
+	ba,pt	%xcc, __restore_asi
+	 add	%i2, %g1, %i0
+ENDPROC(NG_ret_i2_plus_g1_minus_24)
+ENTRY(NG_ret_i2_plus_g1_minus_32)
+	sub	%g1, 32, %g1
+	ba,pt	%xcc, __restore_asi
+	 add	%i2, %g1, %i0
+ENDPROC(NG_ret_i2_plus_g1_minus_32)
+ENTRY(NG_ret_i2_plus_g1_minus_40)
+	sub	%g1, 40, %g1
+	ba,pt	%xcc, __restore_asi
+	 add	%i2, %g1, %i0
+ENDPROC(NG_ret_i2_plus_g1_minus_40)
+ENTRY(NG_ret_i2_plus_g1_minus_48)
+	sub	%g1, 48, %g1
+	ba,pt	%xcc, __restore_asi
+	 add	%i2, %g1, %i0
+ENDPROC(NG_ret_i2_plus_g1_minus_48)
+ENTRY(NG_ret_i2_plus_g1_minus_56)
+	sub	%g1, 56, %g1
+	ba,pt	%xcc, __restore_asi
+	 add	%i2, %g1, %i0
+ENDPROC(NG_ret_i2_plus_g1_minus_56)
+ENTRY(NG_ret_i2_plus_i4)
+	ba,pt	%xcc, __restore_asi
+	 add	%i2, %i4, %i0
+ENDPROC(NG_ret_i2_plus_i4)
+ENTRY(NG_ret_i2_plus_i4_minus_8)
+	sub	%i4, 8, %i4
+	ba,pt	%xcc, __restore_asi
+	 add	%i2, %i4, %i0
+ENDPROC(NG_ret_i2_plus_i4_minus_8)
+ENTRY(NG_ret_i2_plus_8)
+	ba,pt	%xcc, __restore_asi
+	 add	%i2, 8, %i0
+ENDPROC(NG_ret_i2_plus_8)
+ENTRY(NG_ret_i2_plus_4)
+	ba,pt	%xcc, __restore_asi
+	 add	%i2, 4, %i0
+ENDPROC(NG_ret_i2_plus_4)
+ENTRY(NG_ret_i2_plus_1)
+	ba,pt	%xcc, __restore_asi
+	 add	%i2, 1, %i0
+ENDPROC(NG_ret_i2_plus_1)
+ENTRY(NG_ret_i2_plus_g1_plus_1)
+	add	%g1, 1, %g1
+	ba,pt	%xcc, __restore_asi
+	 add	%i2, %g1, %i0
+ENDPROC(NG_ret_i2_plus_g1_plus_1)
+ENTRY(NG_ret_i2)
+	ba,pt	%xcc, __restore_asi
+	 mov	%i2, %i0
+ENDPROC(NG_ret_i2)
+ENTRY(NG_ret_i2_and_7_plus_i4)
+	and	%i2, 7, %i2
+	ba,pt	%xcc, __restore_asi
+	 add	%i2, %i4, %i0
+ENDPROC(NG_ret_i2_and_7_plus_i4)
+#endif
+
 	.align		64
 
 	.globl	FUNC_NAME
@@ -126,8 +209,8 @@ FUNC_NAME:	/* %i0=dst, %i1=src, %i2=len
 	sub		%g0, %i4, %i4	! bytes to align dst
 	sub		%i2, %i4, %i2
 1:	subcc		%i4, 1, %i4
-	EX_LD(LOAD(ldub, %i1, %g1))
-	EX_ST(STORE(stb, %g1, %o0))
+	EX_LD(LOAD(ldub, %i1, %g1), NG_ret_i2_plus_i4_plus_1)
+	EX_ST(STORE(stb, %g1, %o0), NG_ret_i2_plus_i4_plus_1)
 	add		%i1, 1, %i1
 	bne,pt		%XCC, 1b
 	add		%o0, 1, %o0
@@ -160,7 +243,7 @@ FUNC_NAME:	/* %i0=dst, %i1=src, %i2=len
 	and		%i4, 0x7, GLOBAL_SPARE
 	sll		GLOBAL_SPARE, 3, GLOBAL_SPARE
 	mov		64, %i5
-	EX_LD(LOAD_TWIN(%i1, %g2, %g3))
+	EX_LD(LOAD_TWIN(%i1, %g2, %g3), NG_ret_i2_plus_g1)
 	sub		%i5, GLOBAL_SPARE, %i5
 	mov		16, %o4
 	mov		32, %o5
@@ -178,31 +261,31 @@ FUNC_NAME:	/* %i0=dst, %i1=src, %i2=len
 	srlx		WORD3, PRE_SHIFT, TMP; \
 	or		WORD2, TMP, WORD2;
 
-8:	EX_LD(LOAD_TWIN(%i1 + %o4, %o2, %o3))
+8:	EX_LD(LOAD_TWIN(%i1 + %o4, %o2, %o3), NG_ret_i2_plus_g1)
 	MIX_THREE_WORDS(%g2, %g3, %o2, %i5, GLOBAL_SPARE, %o1)
 	LOAD(prefetch, %i1 + %i3, #one_read)
 
-	EX_ST(STORE_INIT(%g2, %o0 + 0x00))
-	EX_ST(STORE_INIT(%g3, %o0 + 0x08))
+	EX_ST(STORE_INIT(%g2, %o0 + 0x00), NG_ret_i2_plus_g1)
+	EX_ST(STORE_INIT(%g3, %o0 + 0x08), NG_ret_i2_plus_g1_minus_8)
 
-	EX_LD(LOAD_TWIN(%i1 + %o5, %g2, %g3))
+	EX_LD(LOAD_TWIN(%i1 + %o5, %g2, %g3), NG_ret_i2_plus_g1_minus_16)
 	MIX_THREE_WORDS(%o2, %o3, %g2, %i5, GLOBAL_SPARE, %o1)
 
-	EX_ST(STORE_INIT(%o2, %o0 + 0x10))
-	EX_ST(STORE_INIT(%o3, %o0 + 0x18))
+	EX_ST(STORE_INIT(%o2, %o0 + 0x10), NG_ret_i2_plus_g1_minus_16)
+	EX_ST(STORE_INIT(%o3, %o0 + 0x18), NG_ret_i2_plus_g1_minus_24)
 
-	EX_LD(LOAD_TWIN(%i1 + %o7, %o2, %o3))
+	EX_LD(LOAD_TWIN(%i1 + %o7, %o2, %o3), NG_ret_i2_plus_g1_minus_32)
 	MIX_THREE_WORDS(%g2, %g3, %o2, %i5, GLOBAL_SPARE, %o1)
 
-	EX_ST(STORE_INIT(%g2, %o0 + 0x20))
-	EX_ST(STORE_INIT(%g3, %o0 + 0x28))
+	EX_ST(STORE_INIT(%g2, %o0 + 0x20), NG_ret_i2_plus_g1_minus_32)
+	EX_ST(STORE_INIT(%g3, %o0 + 0x28), NG_ret_i2_plus_g1_minus_40)
 
-	EX_LD(LOAD_TWIN(%i1 + %i3, %g2, %g3))
+	EX_LD(LOAD_TWIN(%i1 + %i3, %g2, %g3), NG_ret_i2_plus_g1_minus_48)
 	add		%i1, 64, %i1
 	MIX_THREE_WORDS(%o2, %o3, %g2, %i5, GLOBAL_SPARE, %o1)
 
-	EX_ST(STORE_INIT(%o2, %o0 + 0x30))
-	EX_ST(STORE_INIT(%o3, %o0 + 0x38))
+	EX_ST(STORE_INIT(%o2, %o0 + 0x30), NG_ret_i2_plus_g1_minus_48)
+	EX_ST(STORE_INIT(%o3, %o0 + 0x38), NG_ret_i2_plus_g1_minus_56)
 
 	subcc		%g1, 64, %g1
 	bne,pt		%XCC, 8b
@@ -211,31 +294,31 @@ FUNC_NAME:	/* %i0=dst, %i1=src, %i2=len
 	ba,pt		%XCC, 60f
 	 add		%i1, %i4, %i1
 
-9:	EX_LD(LOAD_TWIN(%i1 + %o4, %o2, %o3))
+9:	EX_LD(LOAD_TWIN(%i1 + %o4, %o2, %o3), NG_ret_i2_plus_g1)
 	MIX_THREE_WORDS(%g3, %o2, %o3, %i5, GLOBAL_SPARE, %o1)
 	LOAD(prefetch, %i1 + %i3, #one_read)
 
-	EX_ST(STORE_INIT(%g3, %o0 + 0x00))
-	EX_ST(STORE_INIT(%o2, %o0 + 0x08))
+	EX_ST(STORE_INIT(%g3, %o0 + 0x00), NG_ret_i2_plus_g1)
+	EX_ST(STORE_INIT(%o2, %o0 + 0x08), NG_ret_i2_plus_g1_minus_8)
 
-	EX_LD(LOAD_TWIN(%i1 + %o5, %g2, %g3))
+	EX_LD(LOAD_TWIN(%i1 + %o5, %g2, %g3), NG_ret_i2_plus_g1_minus_16)
 	MIX_THREE_WORDS(%o3, %g2, %g3, %i5, GLOBAL_SPARE, %o1)
 
-	EX_ST(STORE_INIT(%o3, %o0 + 0x10))
-	EX_ST(STORE_INIT(%g2, %o0 + 0x18))
+	EX_ST(STORE_INIT(%o3, %o0 + 0x10), NG_ret_i2_plus_g1_minus_16)
+	EX_ST(STORE_INIT(%g2, %o0 + 0x18), NG_ret_i2_plus_g1_minus_24)
 
-	EX_LD(LOAD_TWIN(%i1 + %o7, %o2, %o3))
+	EX_LD(LOAD_TWIN(%i1 + %o7, %o2, %o3), NG_ret_i2_plus_g1_minus_32)
 	MIX_THREE_WORDS(%g3, %o2, %o3, %i5, GLOBAL_SPARE, %o1)
 
-	EX_ST(STORE_INIT(%g3, %o0 + 0x20))
-	EX_ST(STORE_INIT(%o2, %o0 + 0x28))
+	EX_ST(STORE_INIT(%g3, %o0 + 0x20), NG_ret_i2_plus_g1_minus_32)
+	EX_ST(STORE_INIT(%o2, %o0 + 0x28), NG_ret_i2_plus_g1_minus_40)
 
-	EX_LD(LOAD_TWIN(%i1 + %i3, %g2, %g3))
+	EX_LD(LOAD_TWIN(%i1 + %i3, %g2, %g3), NG_ret_i2_plus_g1_minus_48)
 	add		%i1, 64, %i1
 	MIX_THREE_WORDS(%o3, %g2, %g3, %i5, GLOBAL_SPARE, %o1)
 
-	EX_ST(STORE_INIT(%o3, %o0 + 0x30))
-	EX_ST(STORE_INIT(%g2, %o0 + 0x38))
+	EX_ST(STORE_INIT(%o3, %o0 + 0x30), NG_ret_i2_plus_g1_minus_48)
+	EX_ST(STORE_INIT(%g2, %o0 + 0x38), NG_ret_i2_plus_g1_minus_56)
 
 	subcc		%g1, 64, %g1
 	bne,pt		%XCC, 9b
@@ -249,25 +332,25 @@ FUNC_NAME:	/* %i0=dst, %i1=src, %i2=len
 	 * one twin load ahead, then add 8 back into source when
 	 * we finish the loop.
 	 */
-	EX_LD(LOAD_TWIN(%i1, %o4, %o5))
+	EX_LD(LOAD_TWIN(%i1, %o4, %o5), NG_ret_i2_plus_g1)
 	mov	16, %o7
 	mov	32, %g2
 	mov	48, %g3
 	mov	64, %o1
-1:	EX_LD(LOAD_TWIN(%i1 + %o7, %o2, %o3))
+1:	EX_LD(LOAD_TWIN(%i1 + %o7, %o2, %o3), NG_ret_i2_plus_g1)
 	LOAD(prefetch, %i1 + %o1, #one_read)
-	EX_ST(STORE_INIT(%o5, %o0 + 0x00))	! initializes cache line
-	EX_ST(STORE_INIT(%o2, %o0 + 0x08))
-	EX_LD(LOAD_TWIN(%i1 + %g2, %o4, %o5))
-	EX_ST(STORE_INIT(%o3, %o0 + 0x10))
-	EX_ST(STORE_INIT(%o4, %o0 + 0x18))
-	EX_LD(LOAD_TWIN(%i1 + %g3, %o2, %o3))
-	EX_ST(STORE_INIT(%o5, %o0 + 0x20))
-	EX_ST(STORE_INIT(%o2, %o0 + 0x28))
-	EX_LD(LOAD_TWIN(%i1 + %o1, %o4, %o5))
+	EX_ST(STORE_INIT(%o5, %o0 + 0x00), NG_ret_i2_plus_g1)	! initializes cache line
+	EX_ST(STORE_INIT(%o2, %o0 + 0x08), NG_ret_i2_plus_g1_minus_8)
+	EX_LD(LOAD_TWIN(%i1 + %g2, %o4, %o5), NG_ret_i2_plus_g1_minus_16)
+	EX_ST(STORE_INIT(%o3, %o0 + 0x10), NG_ret_i2_plus_g1_minus_16)
+	EX_ST(STORE_INIT(%o4, %o0 + 0x18), NG_ret_i2_plus_g1_minus_24)
+	EX_LD(LOAD_TWIN(%i1 + %g3, %o2, %o3), NG_ret_i2_plus_g1_minus_32)
+	EX_ST(STORE_INIT(%o5, %o0 + 0x20), NG_ret_i2_plus_g1_minus_32)
+	EX_ST(STORE_INIT(%o2, %o0 + 0x28), NG_ret_i2_plus_g1_minus_40)
+	EX_LD(LOAD_TWIN(%i1 + %o1, %o4, %o5), NG_ret_i2_plus_g1_minus_48)
 	add		%i1, 64, %i1
-	EX_ST(STORE_INIT(%o3, %o0 + 0x30))
-	EX_ST(STORE_INIT(%o4, %o0 + 0x38))
+	EX_ST(STORE_INIT(%o3, %o0 + 0x30), NG_ret_i2_plus_g1_minus_48)
+	EX_ST(STORE_INIT(%o4, %o0 + 0x38), NG_ret_i2_plus_g1_minus_56)
 	subcc		%g1, 64, %g1
 	bne,pt		%XCC, 1b
 	 add		%o0, 64, %o0
@@ -282,20 +365,20 @@ FUNC_NAME:	/* %i0=dst, %i1=src, %i2=len
 	mov	32, %g2
 	mov	48, %g3
 	mov	64, %o1
-1:	EX_LD(LOAD_TWIN(%i1 + %g0, %o4, %o5))
-	EX_LD(LOAD_TWIN(%i1 + %o7, %o2, %o3))
+1:	EX_LD(LOAD_TWIN(%i1 + %g0, %o4, %o5), NG_ret_i2_plus_g1)
+	EX_LD(LOAD_TWIN(%i1 + %o7, %o2, %o3), NG_ret_i2_plus_g1)
 	LOAD(prefetch, %i1 + %o1, #one_read)
-	EX_ST(STORE_INIT(%o4, %o0 + 0x00))	! initializes cache line
-	EX_ST(STORE_INIT(%o5, %o0 + 0x08))
-	EX_LD(LOAD_TWIN(%i1 + %g2, %o4, %o5))
-	EX_ST(STORE_INIT(%o2, %o0 + 0x10))
-	EX_ST(STORE_INIT(%o3, %o0 + 0x18))
-	EX_LD(LOAD_TWIN(%i1 + %g3, %o2, %o3))
+	EX_ST(STORE_INIT(%o4, %o0 + 0x00), NG_ret_i2_plus_g1)	! initializes cache line
+	EX_ST(STORE_INIT(%o5, %o0 + 0x08), NG_ret_i2_plus_g1_minus_8)
+	EX_LD(LOAD_TWIN(%i1 + %g2, %o4, %o5), NG_ret_i2_plus_g1_minus_16)
+	EX_ST(STORE_INIT(%o2, %o0 + 0x10), NG_ret_i2_plus_g1_minus_16)
+	EX_ST(STORE_INIT(%o3, %o0 + 0x18), NG_ret_i2_plus_g1_minus_24)
+	EX_LD(LOAD_TWIN(%i1 + %g3, %o2, %o3), NG_ret_i2_plus_g1_minus_32)
 	add	%i1, 64, %i1
-	EX_ST(STORE_INIT(%o4, %o0 + 0x20))
-	EX_ST(STORE_INIT(%o5, %o0 + 0x28))
-	EX_ST(STORE_INIT(%o2, %o0 + 0x30))
-	EX_ST(STORE_INIT(%o3, %o0 + 0x38))
+	EX_ST(STORE_INIT(%o4, %o0 + 0x20), NG_ret_i2_plus_g1_minus_32)
+	EX_ST(STORE_INIT(%o5, %o0 + 0x28), NG_ret_i2_plus_g1_minus_40)
+	EX_ST(STORE_INIT(%o2, %o0 + 0x30), NG_ret_i2_plus_g1_minus_48)
+	EX_ST(STORE_INIT(%o3, %o0 + 0x38), NG_ret_i2_plus_g1_minus_56)
 	subcc	%g1, 64, %g1
 	bne,pt	%XCC, 1b
 	 add	%o0, 64, %o0
@@ -321,28 +404,28 @@ FUNC_NAME:	/* %i0=dst, %i1=src, %i2=len
 	andn		%i2, 0xf, %i4
 	and		%i2, 0xf, %i2
 1:	subcc		%i4, 0x10, %i4
-	EX_LD(LOAD(ldx, %i1, %o4))
+	EX_LD(LOAD(ldx, %i1, %o4), NG_ret_i2_plus_i4)
 	add		%i1, 0x08, %i1
-	EX_LD(LOAD(ldx, %i1, %g1))
+	EX_LD(LOAD(ldx, %i1, %g1), NG_ret_i2_plus_i4)
 	sub		%i1, 0x08, %i1
-	EX_ST(STORE(stx, %o4, %i1 + %i3))
+	EX_ST(STORE(stx, %o4, %i1 + %i3), NG_ret_i2_plus_i4)
 	add		%i1, 0x8, %i1
-	EX_ST(STORE(stx, %g1, %i1 + %i3))
+	EX_ST(STORE(stx, %g1, %i1 + %i3), NG_ret_i2_plus_i4_minus_8)
 	bgu,pt		%XCC, 1b
 	 add		%i1, 0x8, %i1
 73:	andcc		%i2, 0x8, %g0
 	be,pt		%XCC, 1f
 	 nop
 	sub		%i2, 0x8, %i2
-	EX_LD(LOAD(ldx, %i1, %o4))
-	EX_ST(STORE(stx, %o4, %i1 + %i3))
+	EX_LD(LOAD(ldx, %i1, %o4), NG_ret_i2_plus_8)
+	EX_ST(STORE(stx, %o4, %i1 + %i3), NG_ret_i2_plus_8)
 	add		%i1, 0x8, %i1
 1:	andcc		%i2, 0x4, %g0
 	be,pt		%XCC, 1f
 	 nop
 	sub		%i2, 0x4, %i2
-	EX_LD(LOAD(lduw, %i1, %i5))
-	EX_ST(STORE(stw, %i5, %i1 + %i3))
+	EX_LD(LOAD(lduw, %i1, %i5), NG_ret_i2_plus_4)
+	EX_ST(STORE(stw, %i5, %i1 + %i3), NG_ret_i2_plus_4)
 	add		%i1, 0x4, %i1
 1:	cmp		%i2, 0
 	be,pt		%XCC, 85f
@@ -358,8 +441,8 @@ FUNC_NAME:	/* %i0=dst, %i1=src, %i2=len
 	sub		%i2, %g1, %i2
 
 1:	subcc		%g1, 1, %g1
-	EX_LD(LOAD(ldub, %i1, %i5))
-	EX_ST(STORE(stb, %i5, %i1 + %i3))
+	EX_LD(LOAD(ldub, %i1, %i5), NG_ret_i2_plus_g1_plus_1)
+	EX_ST(STORE(stb, %i5, %i1 + %i3), NG_ret_i2_plus_g1_plus_1)
 	bgu,pt		%icc, 1b
 	 add		%i1, 1, %i1
 
@@ -375,16 +458,16 @@ FUNC_NAME:	/* %i0=dst, %i1=src, %i2=len
 
 8:	mov		64, %i3
 	andn		%i1, 0x7, %i1
-	EX_LD(LOAD(ldx, %i1, %g2))
+	EX_LD(LOAD(ldx, %i1, %g2), NG_ret_i2)
 	sub		%i3, %g1, %i3
 	andn		%i2, 0x7, %i4
 	sllx		%g2, %g1, %g2
 1:	add		%i1, 0x8, %i1
-	EX_LD(LOAD(ldx, %i1, %g3))
+	EX_LD(LOAD(ldx, %i1, %g3), NG_ret_i2_and_7_plus_i4)
 	subcc		%i4, 0x8, %i4
 	srlx		%g3, %i3, %i5
 	or		%i5, %g2, %i5
-	EX_ST(STORE(stx, %i5, %o0))
+	EX_ST(STORE(stx, %i5, %o0), NG_ret_i2_and_7_plus_i4)
 	add		%o0, 0x8, %o0
 	bgu,pt		%icc, 1b
 	 sllx		%g3, %g1, %g2
@@ -404,8 +487,8 @@ FUNC_NAME:	/* %i0=dst, %i1=src, %i2=len
 
 1:
 	subcc		%i2, 4, %i2
-	EX_LD(LOAD(lduw, %i1, %g1))
-	EX_ST(STORE(stw, %g1, %i1 + %i3))
+	EX_LD(LOAD(lduw, %i1, %g1), NG_ret_i2_plus_4)
+	EX_ST(STORE(stw, %g1, %i1 + %i3), NG_ret_i2_plus_4)
 	bgu,pt		%XCC, 1b
 	 add		%i1, 4, %i1
 
@@ -415,8 +498,8 @@ FUNC_NAME:	/* %i0=dst, %i1=src, %i2=len
 	.align		32
 90:
 	subcc		%i2, 1, %i2
-	EX_LD(LOAD(ldub, %i1, %g1))
-	EX_ST(STORE(stb, %g1, %i1 + %i3))
+	EX_LD(LOAD(ldub, %i1, %g1), NG_ret_i2_plus_1)
+	EX_ST(STORE(stb, %g1, %i1 + %i3), NG_ret_i2_plus_1)
 	bgu,pt		%XCC, 90b
 	 add		%i1, 1, %i1
 	ret
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/lib/U1copy_from_user.S linux-libre-4.4.107-gnu/arch/sparc/lib/U1copy_from_user.S
--- linux-libre-4.4-gnu/arch/sparc/lib/U1copy_from_user.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sparc/lib/U1copy_from_user.S	2017-12-20 04:05:01.000000000 -0500
@@ -3,19 +3,19 @@
  * Copyright (C) 1999, 2000, 2004 David S. Miller (davem@redhat.com)
  */
 
-#define EX_LD(x)		\
+#define EX_LD(x,y)		\
 98:	x;			\
 	.section __ex_table,"a";\
 	.align 4;		\
-	.word 98b, __retl_one;	\
+	.word 98b, y;		\
 	.text;			\
 	.align 4;
 
-#define EX_LD_FP(x)		\
+#define EX_LD_FP(x,y)		\
 98:	x;			\
 	.section __ex_table,"a";\
 	.align 4;		\
-	.word 98b, __retl_one_fp;\
+	.word 98b, y;		\
 	.text;			\
 	.align 4;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/lib/U1copy_to_user.S linux-libre-4.4.107-gnu/arch/sparc/lib/U1copy_to_user.S
--- linux-libre-4.4-gnu/arch/sparc/lib/U1copy_to_user.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sparc/lib/U1copy_to_user.S	2017-12-20 04:05:01.000000000 -0500
@@ -3,19 +3,19 @@
  * Copyright (C) 1999, 2000, 2004 David S. Miller (davem@redhat.com)
  */
 
-#define EX_ST(x)		\
+#define EX_ST(x,y)		\
 98:	x;			\
 	.section __ex_table,"a";\
 	.align 4;		\
-	.word 98b, __retl_one;	\
+	.word 98b, y;		\
 	.text;			\
 	.align 4;
 
-#define EX_ST_FP(x)		\
+#define EX_ST_FP(x,y)		\
 98:	x;			\
 	.section __ex_table,"a";\
 	.align 4;		\
-	.word 98b, __retl_one_fp;\
+	.word 98b, y;		\
 	.text;			\
 	.align 4;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/lib/U1memcpy.S linux-libre-4.4.107-gnu/arch/sparc/lib/U1memcpy.S
--- linux-libre-4.4-gnu/arch/sparc/lib/U1memcpy.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sparc/lib/U1memcpy.S	2017-12-20 04:05:01.000000000 -0500
@@ -5,6 +5,7 @@
  */
 
 #ifdef __KERNEL__
+#include <linux/linkage.h>
 #include <asm/visasm.h>
 #include <asm/asi.h>
 #define GLOBAL_SPARE	g7
@@ -23,21 +24,17 @@
 #endif
 
 #ifndef EX_LD
-#define EX_LD(x)	x
+#define EX_LD(x,y)	x
 #endif
 #ifndef EX_LD_FP
-#define EX_LD_FP(x)	x
+#define EX_LD_FP(x,y)	x
 #endif
 
 #ifndef EX_ST
-#define EX_ST(x)	x
+#define EX_ST(x,y)	x
 #endif
 #ifndef EX_ST_FP
-#define EX_ST_FP(x)	x
-#endif
-
-#ifndef EX_RETVAL
-#define EX_RETVAL(x)	x
+#define EX_ST_FP(x,y)	x
 #endif
 
 #ifndef LOAD
@@ -78,53 +75,169 @@
 	faligndata		%f7, %f8, %f60;			\
 	faligndata		%f8, %f9, %f62;
 
-#define MAIN_LOOP_CHUNK(src, dest, fdest, fsrc, len, jmptgt)	\
-	EX_LD_FP(LOAD_BLK(%src, %fdest));				\
-	EX_ST_FP(STORE_BLK(%fsrc, %dest));				\
-	add			%src, 0x40, %src;		\
-	subcc			%len, 0x40, %len;		\
-	be,pn			%xcc, jmptgt;			\
-	 add			%dest, 0x40, %dest;		\
+#define MAIN_LOOP_CHUNK(src, dest, fdest, fsrc, jmptgt)			\
+	EX_LD_FP(LOAD_BLK(%src, %fdest), U1_gs_80_fp);			\
+	EX_ST_FP(STORE_BLK(%fsrc, %dest), U1_gs_80_fp);			\
+	add			%src, 0x40, %src;			\
+	subcc			%GLOBAL_SPARE, 0x40, %GLOBAL_SPARE;	\
+	be,pn			%xcc, jmptgt;				\
+	 add			%dest, 0x40, %dest;			\
 
-#define LOOP_CHUNK1(src, dest, len, branch_dest)		\
-	MAIN_LOOP_CHUNK(src, dest, f0,  f48, len, branch_dest)
-#define LOOP_CHUNK2(src, dest, len, branch_dest)		\
-	MAIN_LOOP_CHUNK(src, dest, f16, f48, len, branch_dest)
-#define LOOP_CHUNK3(src, dest, len, branch_dest)		\
-	MAIN_LOOP_CHUNK(src, dest, f32, f48, len, branch_dest)
+#define LOOP_CHUNK1(src, dest, branch_dest)		\
+	MAIN_LOOP_CHUNK(src, dest, f0,  f48, branch_dest)
+#define LOOP_CHUNK2(src, dest, branch_dest)		\
+	MAIN_LOOP_CHUNK(src, dest, f16, f48, branch_dest)
+#define LOOP_CHUNK3(src, dest, branch_dest)		\
+	MAIN_LOOP_CHUNK(src, dest, f32, f48, branch_dest)
 
 #define DO_SYNC			membar	#Sync;
 #define STORE_SYNC(dest, fsrc)				\
-	EX_ST_FP(STORE_BLK(%fsrc, %dest));			\
+	EX_ST_FP(STORE_BLK(%fsrc, %dest), U1_gs_80_fp);	\
 	add			%dest, 0x40, %dest;	\
 	DO_SYNC
 
 #define STORE_JUMP(dest, fsrc, target)			\
-	EX_ST_FP(STORE_BLK(%fsrc, %dest));			\
+	EX_ST_FP(STORE_BLK(%fsrc, %dest), U1_gs_40_fp);	\
 	add			%dest, 0x40, %dest;	\
 	ba,pt			%xcc, target;		\
 	 nop;
 
-#define FINISH_VISCHUNK(dest, f0, f1, left)	\
-	subcc			%left, 8, %left;\
-	bl,pn			%xcc, 95f;	\
-	 faligndata		%f0, %f1, %f48;	\
-	EX_ST_FP(STORE(std, %f48, %dest));		\
+#define FINISH_VISCHUNK(dest, f0, f1)			\
+	subcc			%g3, 8, %g3;		\
+	bl,pn			%xcc, 95f;		\
+	 faligndata		%f0, %f1, %f48;		\
+	EX_ST_FP(STORE(std, %f48, %dest), U1_g3_8_fp);	\
 	add			%dest, 8, %dest;
 
-#define UNEVEN_VISCHUNK_LAST(dest, f0, f1, left)	\
-	subcc			%left, 8, %left;	\
-	bl,pn			%xcc, 95f;		\
+#define UNEVEN_VISCHUNK_LAST(dest, f0, f1)	\
+	subcc			%g3, 8, %g3;	\
+	bl,pn			%xcc, 95f;	\
 	 fsrc2			%f0, %f1;
 
-#define UNEVEN_VISCHUNK(dest, f0, f1, left)		\
-	UNEVEN_VISCHUNK_LAST(dest, f0, f1, left)	\
+#define UNEVEN_VISCHUNK(dest, f0, f1)		\
+	UNEVEN_VISCHUNK_LAST(dest, f0, f1)	\
 	ba,a,pt			%xcc, 93f;
 
 	.register	%g2,#scratch
 	.register	%g3,#scratch
 
 	.text
+#ifndef EX_RETVAL
+#define EX_RETVAL(x)	x
+ENTRY(U1_g1_1_fp)
+	VISExitHalf
+	add		%g1, 1, %g1
+	add		%g1, %g2, %g1
+	retl
+	 add		%g1, %o2, %o0
+ENDPROC(U1_g1_1_fp)
+ENTRY(U1_g2_0_fp)
+	VISExitHalf
+	retl
+	 add		%g2, %o2, %o0
+ENDPROC(U1_g2_0_fp)
+ENTRY(U1_g2_8_fp)
+	VISExitHalf
+	add		%g2, 8, %g2
+	retl
+	 add		%g2, %o2, %o0
+ENDPROC(U1_g2_8_fp)
+ENTRY(U1_gs_0_fp)
+	VISExitHalf
+	add		%GLOBAL_SPARE, %g3, %o0
+	retl
+	 add		%o0, %o2, %o0
+ENDPROC(U1_gs_0_fp)
+ENTRY(U1_gs_80_fp)
+	VISExitHalf
+	add		%GLOBAL_SPARE, 0x80, %GLOBAL_SPARE
+	add		%GLOBAL_SPARE, %g3, %o0
+	retl
+	 add		%o0, %o2, %o0
+ENDPROC(U1_gs_80_fp)
+ENTRY(U1_gs_40_fp)
+	VISExitHalf
+	add		%GLOBAL_SPARE, 0x40, %GLOBAL_SPARE
+	add		%GLOBAL_SPARE, %g3, %o0
+	retl
+	 add		%o0, %o2, %o0
+ENDPROC(U1_gs_40_fp)
+ENTRY(U1_g3_0_fp)
+	VISExitHalf
+	retl
+	 add		%g3, %o2, %o0
+ENDPROC(U1_g3_0_fp)
+ENTRY(U1_g3_8_fp)
+	VISExitHalf
+	add		%g3, 8, %g3
+	retl
+	 add		%g3, %o2, %o0
+ENDPROC(U1_g3_8_fp)
+ENTRY(U1_o2_0_fp)
+	VISExitHalf
+	retl
+	 mov		%o2, %o0
+ENDPROC(U1_o2_0_fp)
+ENTRY(U1_o2_1_fp)
+	VISExitHalf
+	retl
+	 add		%o2, 1, %o0
+ENDPROC(U1_o2_1_fp)
+ENTRY(U1_gs_0)
+	VISExitHalf
+	retl
+	 add		%GLOBAL_SPARE, %o2, %o0
+ENDPROC(U1_gs_0)
+ENTRY(U1_gs_8)
+	VISExitHalf
+	add		%GLOBAL_SPARE, %o2, %GLOBAL_SPARE
+	retl
+	 add		%GLOBAL_SPARE, 0x8, %o0
+ENDPROC(U1_gs_8)
+ENTRY(U1_gs_10)
+	VISExitHalf
+	add		%GLOBAL_SPARE, %o2, %GLOBAL_SPARE
+	retl
+	 add		%GLOBAL_SPARE, 0x10, %o0
+ENDPROC(U1_gs_10)
+ENTRY(U1_o2_0)
+	retl
+	 mov		%o2, %o0
+ENDPROC(U1_o2_0)
+ENTRY(U1_o2_8)
+	retl
+	 add		%o2, 8, %o0
+ENDPROC(U1_o2_8)
+ENTRY(U1_o2_4)
+	retl
+	 add		%o2, 4, %o0
+ENDPROC(U1_o2_4)
+ENTRY(U1_o2_1)
+	retl
+	 add		%o2, 1, %o0
+ENDPROC(U1_o2_1)
+ENTRY(U1_g1_0)
+	retl
+	 add		%g1, %o2, %o0
+ENDPROC(U1_g1_0)
+ENTRY(U1_g1_1)
+	add		%g1, 1, %g1
+	retl
+	 add		%g1, %o2, %o0
+ENDPROC(U1_g1_1)
+ENTRY(U1_gs_0_o2_adj)
+	and		%o2, 7, %o2
+	retl
+	 add		%GLOBAL_SPARE, %o2, %o0
+ENDPROC(U1_gs_0_o2_adj)
+ENTRY(U1_gs_8_o2_adj)
+	and		%o2, 7, %o2
+	add		%GLOBAL_SPARE, 8, %GLOBAL_SPARE
+	retl
+	 add		%GLOBAL_SPARE, %o2, %o0
+ENDPROC(U1_gs_8_o2_adj)
+#endif
+
 	.align		64
 
 	.globl		FUNC_NAME
@@ -166,8 +279,8 @@ FUNC_NAME:		/* %o0=dst, %o1=src, %o2=len
 	 and		%g2, 0x38, %g2
 
 1:	subcc		%g1, 0x1, %g1
-	EX_LD_FP(LOAD(ldub, %o1 + 0x00, %o3))
-	EX_ST_FP(STORE(stb, %o3, %o1 + %GLOBAL_SPARE))
+	EX_LD_FP(LOAD(ldub, %o1 + 0x00, %o3), U1_g1_1_fp)
+	EX_ST_FP(STORE(stb, %o3, %o1 + %GLOBAL_SPARE), U1_g1_1_fp)
 	bgu,pt		%XCC, 1b
 	 add		%o1, 0x1, %o1
 
@@ -178,20 +291,20 @@ FUNC_NAME:		/* %o0=dst, %o1=src, %o2=len
 	be,pt		%icc, 3f
 	 alignaddr	%o1, %g0, %o1
 
-	EX_LD_FP(LOAD(ldd, %o1, %f4))
-1:	EX_LD_FP(LOAD(ldd, %o1 + 0x8, %f6))
+	EX_LD_FP(LOAD(ldd, %o1, %f4), U1_g2_0_fp)
+1:	EX_LD_FP(LOAD(ldd, %o1 + 0x8, %f6), U1_g2_0_fp)
 	add		%o1, 0x8, %o1
 	subcc		%g2, 0x8, %g2
 	faligndata	%f4, %f6, %f0
-	EX_ST_FP(STORE(std, %f0, %o0))
+	EX_ST_FP(STORE(std, %f0, %o0), U1_g2_8_fp)
 	be,pn		%icc, 3f
 	 add		%o0, 0x8, %o0
 
-	EX_LD_FP(LOAD(ldd, %o1 + 0x8, %f4))
+	EX_LD_FP(LOAD(ldd, %o1 + 0x8, %f4), U1_g2_0_fp)
 	add		%o1, 0x8, %o1
 	subcc		%g2, 0x8, %g2
 	faligndata	%f6, %f4, %f0
-	EX_ST_FP(STORE(std, %f0, %o0))
+	EX_ST_FP(STORE(std, %f0, %o0), U1_g2_8_fp)
 	bne,pt		%icc, 1b
 	 add		%o0, 0x8, %o0
 
@@ -214,13 +327,13 @@ FUNC_NAME:		/* %o0=dst, %o1=src, %o2=len
 	add		%g1, %GLOBAL_SPARE, %g1
 	subcc		%o2, %g3, %o2
 
-	EX_LD_FP(LOAD_BLK(%o1, %f0))
+	EX_LD_FP(LOAD_BLK(%o1, %f0), U1_gs_0_fp)
 	add		%o1, 0x40, %o1
 	add		%g1, %g3, %g1
-	EX_LD_FP(LOAD_BLK(%o1, %f16))
+	EX_LD_FP(LOAD_BLK(%o1, %f16), U1_gs_0_fp)
 	add		%o1, 0x40, %o1
 	sub		%GLOBAL_SPARE, 0x80, %GLOBAL_SPARE
-	EX_LD_FP(LOAD_BLK(%o1, %f32))
+	EX_LD_FP(LOAD_BLK(%o1, %f32), U1_gs_80_fp)
 	add		%o1, 0x40, %o1
 
 	/* There are 8 instances of the unrolled loop,
@@ -240,11 +353,11 @@ FUNC_NAME:		/* %o0=dst, %o1=src, %o2=len
 
 	.align		64
 1:	FREG_FROB(f0, f2, f4, f6, f8, f10,f12,f14,f16)
-	LOOP_CHUNK1(o1, o0, GLOBAL_SPARE, 1f)
+	LOOP_CHUNK1(o1, o0, 1f)
 	FREG_FROB(f16,f18,f20,f22,f24,f26,f28,f30,f32)
-	LOOP_CHUNK2(o1, o0, GLOBAL_SPARE, 2f)
+	LOOP_CHUNK2(o1, o0, 2f)
 	FREG_FROB(f32,f34,f36,f38,f40,f42,f44,f46,f0)
-	LOOP_CHUNK3(o1, o0, GLOBAL_SPARE, 3f)
+	LOOP_CHUNK3(o1, o0, 3f)
 	ba,pt		%xcc, 1b+4
 	 faligndata	%f0, %f2, %f48
 1:	FREG_FROB(f16,f18,f20,f22,f24,f26,f28,f30,f32)
@@ -261,11 +374,11 @@ FUNC_NAME:		/* %o0=dst, %o1=src, %o2=len
 	STORE_JUMP(o0, f48, 56f)
 
 1:	FREG_FROB(f2, f4, f6, f8, f10,f12,f14,f16,f18)
-	LOOP_CHUNK1(o1, o0, GLOBAL_SPARE, 1f)
+	LOOP_CHUNK1(o1, o0, 1f)
 	FREG_FROB(f18,f20,f22,f24,f26,f28,f30,f32,f34)
-	LOOP_CHUNK2(o1, o0, GLOBAL_SPARE, 2f)
+	LOOP_CHUNK2(o1, o0, 2f)
 	FREG_FROB(f34,f36,f38,f40,f42,f44,f46,f0, f2)
-	LOOP_CHUNK3(o1, o0, GLOBAL_SPARE, 3f)
+	LOOP_CHUNK3(o1, o0, 3f)
 	ba,pt		%xcc, 1b+4
 	 faligndata	%f2, %f4, %f48
 1:	FREG_FROB(f18,f20,f22,f24,f26,f28,f30,f32,f34)
@@ -282,11 +395,11 @@ FUNC_NAME:		/* %o0=dst, %o1=src, %o2=len
 	STORE_JUMP(o0, f48, 57f)
 
 1:	FREG_FROB(f4, f6, f8, f10,f12,f14,f16,f18,f20)
-	LOOP_CHUNK1(o1, o0, GLOBAL_SPARE, 1f)
+	LOOP_CHUNK1(o1, o0, 1f)
 	FREG_FROB(f20,f22,f24,f26,f28,f30,f32,f34,f36)
-	LOOP_CHUNK2(o1, o0, GLOBAL_SPARE, 2f)
+	LOOP_CHUNK2(o1, o0, 2f)
 	FREG_FROB(f36,f38,f40,f42,f44,f46,f0, f2, f4)
-	LOOP_CHUNK3(o1, o0, GLOBAL_SPARE, 3f)
+	LOOP_CHUNK3(o1, o0, 3f)
 	ba,pt		%xcc, 1b+4
 	 faligndata	%f4, %f6, %f48
 1:	FREG_FROB(f20,f22,f24,f26,f28,f30,f32,f34,f36)
@@ -303,11 +416,11 @@ FUNC_NAME:		/* %o0=dst, %o1=src, %o2=len
 	STORE_JUMP(o0, f48, 58f)
 
 1:	FREG_FROB(f6, f8, f10,f12,f14,f16,f18,f20,f22)
-	LOOP_CHUNK1(o1, o0, GLOBAL_SPARE, 1f)
+	LOOP_CHUNK1(o1, o0, 1f)
 	FREG_FROB(f22,f24,f26,f28,f30,f32,f34,f36,f38)
-	LOOP_CHUNK2(o1, o0, GLOBAL_SPARE, 2f)
+	LOOP_CHUNK2(o1, o0, 2f)
 	FREG_FROB(f38,f40,f42,f44,f46,f0, f2, f4, f6) 
-	LOOP_CHUNK3(o1, o0, GLOBAL_SPARE, 3f)
+	LOOP_CHUNK3(o1, o0, 3f)
 	ba,pt		%xcc, 1b+4
 	 faligndata	%f6, %f8, %f48
 1:	FREG_FROB(f22,f24,f26,f28,f30,f32,f34,f36,f38)
@@ -324,11 +437,11 @@ FUNC_NAME:		/* %o0=dst, %o1=src, %o2=len
 	STORE_JUMP(o0, f48, 59f)
 
 1:	FREG_FROB(f8, f10,f12,f14,f16,f18,f20,f22,f24)
-	LOOP_CHUNK1(o1, o0, GLOBAL_SPARE, 1f)
+	LOOP_CHUNK1(o1, o0, 1f)
 	FREG_FROB(f24,f26,f28,f30,f32,f34,f36,f38,f40)
-	LOOP_CHUNK2(o1, o0, GLOBAL_SPARE, 2f)
+	LOOP_CHUNK2(o1, o0, 2f)
 	FREG_FROB(f40,f42,f44,f46,f0, f2, f4, f6, f8)
-	LOOP_CHUNK3(o1, o0, GLOBAL_SPARE, 3f)
+	LOOP_CHUNK3(o1, o0, 3f)
 	ba,pt		%xcc, 1b+4
 	 faligndata	%f8, %f10, %f48
 1:	FREG_FROB(f24,f26,f28,f30,f32,f34,f36,f38,f40)
@@ -345,11 +458,11 @@ FUNC_NAME:		/* %o0=dst, %o1=src, %o2=len
 	STORE_JUMP(o0, f48, 60f)
 
 1:	FREG_FROB(f10,f12,f14,f16,f18,f20,f22,f24,f26)
-	LOOP_CHUNK1(o1, o0, GLOBAL_SPARE, 1f)
+	LOOP_CHUNK1(o1, o0, 1f)
 	FREG_FROB(f26,f28,f30,f32,f34,f36,f38,f40,f42)
-	LOOP_CHUNK2(o1, o0, GLOBAL_SPARE, 2f)
+	LOOP_CHUNK2(o1, o0, 2f)
 	FREG_FROB(f42,f44,f46,f0, f2, f4, f6, f8, f10)
-	LOOP_CHUNK3(o1, o0, GLOBAL_SPARE, 3f)
+	LOOP_CHUNK3(o1, o0, 3f)
 	ba,pt		%xcc, 1b+4
 	 faligndata	%f10, %f12, %f48
 1:	FREG_FROB(f26,f28,f30,f32,f34,f36,f38,f40,f42)
@@ -366,11 +479,11 @@ FUNC_NAME:		/* %o0=dst, %o1=src, %o2=len
 	STORE_JUMP(o0, f48, 61f)
 
 1:	FREG_FROB(f12,f14,f16,f18,f20,f22,f24,f26,f28)
-	LOOP_CHUNK1(o1, o0, GLOBAL_SPARE, 1f)
+	LOOP_CHUNK1(o1, o0, 1f)
 	FREG_FROB(f28,f30,f32,f34,f36,f38,f40,f42,f44)
-	LOOP_CHUNK2(o1, o0, GLOBAL_SPARE, 2f)
+	LOOP_CHUNK2(o1, o0, 2f)
 	FREG_FROB(f44,f46,f0, f2, f4, f6, f8, f10,f12)
-	LOOP_CHUNK3(o1, o0, GLOBAL_SPARE, 3f)
+	LOOP_CHUNK3(o1, o0, 3f)
 	ba,pt		%xcc, 1b+4
 	 faligndata	%f12, %f14, %f48
 1:	FREG_FROB(f28,f30,f32,f34,f36,f38,f40,f42,f44)
@@ -387,11 +500,11 @@ FUNC_NAME:		/* %o0=dst, %o1=src, %o2=len
 	STORE_JUMP(o0, f48, 62f)
 
 1:	FREG_FROB(f14,f16,f18,f20,f22,f24,f26,f28,f30)
-	LOOP_CHUNK1(o1, o0, GLOBAL_SPARE, 1f)
+	LOOP_CHUNK1(o1, o0, 1f)
 	FREG_FROB(f30,f32,f34,f36,f38,f40,f42,f44,f46)
-	LOOP_CHUNK2(o1, o0, GLOBAL_SPARE, 2f)
+	LOOP_CHUNK2(o1, o0, 2f)
 	FREG_FROB(f46,f0, f2, f4, f6, f8, f10,f12,f14)
-	LOOP_CHUNK3(o1, o0, GLOBAL_SPARE, 3f)
+	LOOP_CHUNK3(o1, o0, 3f)
 	ba,pt		%xcc, 1b+4
 	 faligndata	%f14, %f16, %f48
 1:	FREG_FROB(f30,f32,f34,f36,f38,f40,f42,f44,f46)
@@ -407,53 +520,53 @@ FUNC_NAME:		/* %o0=dst, %o1=src, %o2=len
 	FREG_FROB(f30,f32,f34,f36,f38,f40,f42,f44,f46)
 	STORE_JUMP(o0, f48, 63f)
 
-40:	FINISH_VISCHUNK(o0, f0,  f2,  g3)
-41:	FINISH_VISCHUNK(o0, f2,  f4,  g3)
-42:	FINISH_VISCHUNK(o0, f4,  f6,  g3)
-43:	FINISH_VISCHUNK(o0, f6,  f8,  g3)
-44:	FINISH_VISCHUNK(o0, f8,  f10, g3)
-45:	FINISH_VISCHUNK(o0, f10, f12, g3)
-46:	FINISH_VISCHUNK(o0, f12, f14, g3)
-47:	UNEVEN_VISCHUNK(o0, f14, f0,  g3)
-48:	FINISH_VISCHUNK(o0, f16, f18, g3)
-49:	FINISH_VISCHUNK(o0, f18, f20, g3)
-50:	FINISH_VISCHUNK(o0, f20, f22, g3)
-51:	FINISH_VISCHUNK(o0, f22, f24, g3)
-52:	FINISH_VISCHUNK(o0, f24, f26, g3)
-53:	FINISH_VISCHUNK(o0, f26, f28, g3)
-54:	FINISH_VISCHUNK(o0, f28, f30, g3)
-55:	UNEVEN_VISCHUNK(o0, f30, f0,  g3)
-56:	FINISH_VISCHUNK(o0, f32, f34, g3)
-57:	FINISH_VISCHUNK(o0, f34, f36, g3)
-58:	FINISH_VISCHUNK(o0, f36, f38, g3)
-59:	FINISH_VISCHUNK(o0, f38, f40, g3)
-60:	FINISH_VISCHUNK(o0, f40, f42, g3)
-61:	FINISH_VISCHUNK(o0, f42, f44, g3)
-62:	FINISH_VISCHUNK(o0, f44, f46, g3)
-63:	UNEVEN_VISCHUNK_LAST(o0, f46, f0,  g3)
+40:	FINISH_VISCHUNK(o0, f0,  f2)
+41:	FINISH_VISCHUNK(o0, f2,  f4)
+42:	FINISH_VISCHUNK(o0, f4,  f6)
+43:	FINISH_VISCHUNK(o0, f6,  f8)
+44:	FINISH_VISCHUNK(o0, f8,  f10)
+45:	FINISH_VISCHUNK(o0, f10, f12)
+46:	FINISH_VISCHUNK(o0, f12, f14)
+47:	UNEVEN_VISCHUNK(o0, f14, f0)
+48:	FINISH_VISCHUNK(o0, f16, f18)
+49:	FINISH_VISCHUNK(o0, f18, f20)
+50:	FINISH_VISCHUNK(o0, f20, f22)
+51:	FINISH_VISCHUNK(o0, f22, f24)
+52:	FINISH_VISCHUNK(o0, f24, f26)
+53:	FINISH_VISCHUNK(o0, f26, f28)
+54:	FINISH_VISCHUNK(o0, f28, f30)
+55:	UNEVEN_VISCHUNK(o0, f30, f0)
+56:	FINISH_VISCHUNK(o0, f32, f34)
+57:	FINISH_VISCHUNK(o0, f34, f36)
+58:	FINISH_VISCHUNK(o0, f36, f38)
+59:	FINISH_VISCHUNK(o0, f38, f40)
+60:	FINISH_VISCHUNK(o0, f40, f42)
+61:	FINISH_VISCHUNK(o0, f42, f44)
+62:	FINISH_VISCHUNK(o0, f44, f46)
+63:	UNEVEN_VISCHUNK_LAST(o0, f46, f0)
 
-93:	EX_LD_FP(LOAD(ldd, %o1, %f2))
+93:	EX_LD_FP(LOAD(ldd, %o1, %f2), U1_g3_0_fp)
 	add		%o1, 8, %o1
 	subcc		%g3, 8, %g3
 	faligndata	%f0, %f2, %f8
-	EX_ST_FP(STORE(std, %f8, %o0))
+	EX_ST_FP(STORE(std, %f8, %o0), U1_g3_8_fp)
 	bl,pn		%xcc, 95f
 	 add		%o0, 8, %o0
-	EX_LD_FP(LOAD(ldd, %o1, %f0))
+	EX_LD_FP(LOAD(ldd, %o1, %f0), U1_g3_0_fp)
 	add		%o1, 8, %o1
 	subcc		%g3, 8, %g3
 	faligndata	%f2, %f0, %f8
-	EX_ST_FP(STORE(std, %f8, %o0))
+	EX_ST_FP(STORE(std, %f8, %o0), U1_g3_8_fp)
 	bge,pt		%xcc, 93b
 	 add		%o0, 8, %o0
 
 95:	brz,pt		%o2, 2f
 	 mov		%g1, %o1
 
-1:	EX_LD_FP(LOAD(ldub, %o1, %o3))
+1:	EX_LD_FP(LOAD(ldub, %o1, %o3), U1_o2_0_fp)
 	add		%o1, 1, %o1
 	subcc		%o2, 1, %o2
-	EX_ST_FP(STORE(stb, %o3, %o0))
+	EX_ST_FP(STORE(stb, %o3, %o0), U1_o2_1_fp)
 	bne,pt		%xcc, 1b
 	 add		%o0, 1, %o0
 
@@ -469,27 +582,27 @@ FUNC_NAME:		/* %o0=dst, %o1=src, %o2=len
 
 72:	andn		%o2, 0xf, %GLOBAL_SPARE
 	and		%o2, 0xf, %o2
-1:	EX_LD(LOAD(ldx, %o1 + 0x00, %o5))
-	EX_LD(LOAD(ldx, %o1 + 0x08, %g1))
+1:	EX_LD(LOAD(ldx, %o1 + 0x00, %o5), U1_gs_0)
+	EX_LD(LOAD(ldx, %o1 + 0x08, %g1), U1_gs_0)
 	subcc		%GLOBAL_SPARE, 0x10, %GLOBAL_SPARE
-	EX_ST(STORE(stx, %o5, %o1 + %o3))
+	EX_ST(STORE(stx, %o5, %o1 + %o3), U1_gs_10)
 	add		%o1, 0x8, %o1
-	EX_ST(STORE(stx, %g1, %o1 + %o3))
+	EX_ST(STORE(stx, %g1, %o1 + %o3), U1_gs_8)
 	bgu,pt		%XCC, 1b
 	 add		%o1, 0x8, %o1
 73:	andcc		%o2, 0x8, %g0
 	be,pt		%XCC, 1f
 	 nop
-	EX_LD(LOAD(ldx, %o1, %o5))
+	EX_LD(LOAD(ldx, %o1, %o5), U1_o2_0)
 	sub		%o2, 0x8, %o2
-	EX_ST(STORE(stx, %o5, %o1 + %o3))
+	EX_ST(STORE(stx, %o5, %o1 + %o3), U1_o2_8)
 	add		%o1, 0x8, %o1
 1:	andcc		%o2, 0x4, %g0
 	be,pt		%XCC, 1f
 	 nop
-	EX_LD(LOAD(lduw, %o1, %o5))
+	EX_LD(LOAD(lduw, %o1, %o5), U1_o2_0)
 	sub		%o2, 0x4, %o2
-	EX_ST(STORE(stw, %o5, %o1 + %o3))
+	EX_ST(STORE(stw, %o5, %o1 + %o3), U1_o2_4)
 	add		%o1, 0x4, %o1
 1:	cmp		%o2, 0
 	be,pt		%XCC, 85f
@@ -503,9 +616,9 @@ FUNC_NAME:		/* %o0=dst, %o1=src, %o2=len
 	 sub		%g0, %g1, %g1
 	sub		%o2, %g1, %o2
 
-1:	EX_LD(LOAD(ldub, %o1, %o5))
+1:	EX_LD(LOAD(ldub, %o1, %o5), U1_g1_0)
 	subcc		%g1, 1, %g1
-	EX_ST(STORE(stb, %o5, %o1 + %o3))
+	EX_ST(STORE(stb, %o5, %o1 + %o3), U1_g1_1)
 	bgu,pt		%icc, 1b
 	 add		%o1, 1, %o1
 
@@ -521,16 +634,16 @@ FUNC_NAME:		/* %o0=dst, %o1=src, %o2=len
 
 8:	mov		64, %o3
 	andn		%o1, 0x7, %o1
-	EX_LD(LOAD(ldx, %o1, %g2))
+	EX_LD(LOAD(ldx, %o1, %g2), U1_o2_0)
 	sub		%o3, %g1, %o3
 	andn		%o2, 0x7, %GLOBAL_SPARE
 	sllx		%g2, %g1, %g2
-1:	EX_LD(LOAD(ldx, %o1 + 0x8, %g3))
+1:	EX_LD(LOAD(ldx, %o1 + 0x8, %g3), U1_gs_0_o2_adj)
 	subcc		%GLOBAL_SPARE, 0x8, %GLOBAL_SPARE
 	add		%o1, 0x8, %o1
 	srlx		%g3, %o3, %o5
 	or		%o5, %g2, %o5
-	EX_ST(STORE(stx, %o5, %o0))
+	EX_ST(STORE(stx, %o5, %o0), U1_gs_8_o2_adj)
 	add		%o0, 0x8, %o0
 	bgu,pt		%icc, 1b
 	 sllx		%g3, %g1, %g2
@@ -548,9 +661,9 @@ FUNC_NAME:		/* %o0=dst, %o1=src, %o2=len
 	bne,pn		%XCC, 90f
 	 sub		%o0, %o1, %o3
 
-1:	EX_LD(LOAD(lduw, %o1, %g1))
+1:	EX_LD(LOAD(lduw, %o1, %g1), U1_o2_0)
 	subcc		%o2, 4, %o2
-	EX_ST(STORE(stw, %g1, %o1 + %o3))
+	EX_ST(STORE(stw, %g1, %o1 + %o3), U1_o2_4)
 	bgu,pt		%XCC, 1b
 	 add		%o1, 4, %o1
 
@@ -558,9 +671,9 @@ FUNC_NAME:		/* %o0=dst, %o1=src, %o2=len
 	 mov		EX_RETVAL(%o4), %o0
 
 	.align		32
-90:	EX_LD(LOAD(ldub, %o1, %g1))
+90:	EX_LD(LOAD(ldub, %o1, %g1), U1_o2_0)
 	subcc		%o2, 1, %o2
-	EX_ST(STORE(stb, %g1, %o1 + %o3))
+	EX_ST(STORE(stb, %g1, %o1 + %o3), U1_o2_1)
 	bgu,pt		%XCC, 90b
 	 add		%o1, 1, %o1
 	retl
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/lib/U3copy_from_user.S linux-libre-4.4.107-gnu/arch/sparc/lib/U3copy_from_user.S
--- linux-libre-4.4-gnu/arch/sparc/lib/U3copy_from_user.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sparc/lib/U3copy_from_user.S	2017-12-20 04:05:01.000000000 -0500
@@ -3,19 +3,19 @@
  * Copyright (C) 1999, 2000, 2004 David S. Miller (davem@redhat.com)
  */
 
-#define EX_LD(x)		\
+#define EX_LD(x,y)		\
 98:	x;			\
 	.section __ex_table,"a";\
 	.align 4;		\
-	.word 98b, __retl_one;	\
+	.word 98b, y;		\
 	.text;			\
 	.align 4;
 
-#define EX_LD_FP(x)		\
+#define EX_LD_FP(x,y)		\
 98:	x;			\
 	.section __ex_table,"a";\
 	.align 4;		\
-	.word 98b, __retl_one_fp;\
+	.word 98b, y##_fp;	\
 	.text;			\
 	.align 4;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/lib/U3copy_to_user.S linux-libre-4.4.107-gnu/arch/sparc/lib/U3copy_to_user.S
--- linux-libre-4.4-gnu/arch/sparc/lib/U3copy_to_user.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sparc/lib/U3copy_to_user.S	2017-12-20 04:05:01.000000000 -0500
@@ -3,19 +3,19 @@
  * Copyright (C) 1999, 2000, 2004 David S. Miller (davem@redhat.com)
  */
 
-#define EX_ST(x)		\
+#define EX_ST(x,y)		\
 98:	x;			\
 	.section __ex_table,"a";\
 	.align 4;		\
-	.word 98b, __retl_one;	\
+	.word 98b, y;		\
 	.text;			\
 	.align 4;
 
-#define EX_ST_FP(x)		\
+#define EX_ST_FP(x,y)		\
 98:	x;			\
 	.section __ex_table,"a";\
 	.align 4;		\
-	.word 98b, __retl_one_fp;\
+	.word 98b, y##_fp;	\
 	.text;			\
 	.align 4;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/lib/U3memcpy.S linux-libre-4.4.107-gnu/arch/sparc/lib/U3memcpy.S
--- linux-libre-4.4-gnu/arch/sparc/lib/U3memcpy.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sparc/lib/U3memcpy.S	2017-12-20 04:05:01.000000000 -0500
@@ -4,6 +4,7 @@
  */
 
 #ifdef __KERNEL__
+#include <linux/linkage.h>
 #include <asm/visasm.h>
 #include <asm/asi.h>
 #define GLOBAL_SPARE	%g7
@@ -22,21 +23,17 @@
 #endif
 
 #ifndef EX_LD
-#define EX_LD(x)	x
+#define EX_LD(x,y)	x
 #endif
 #ifndef EX_LD_FP
-#define EX_LD_FP(x)	x
+#define EX_LD_FP(x,y)	x
 #endif
 
 #ifndef EX_ST
-#define EX_ST(x)	x
+#define EX_ST(x,y)	x
 #endif
 #ifndef EX_ST_FP
-#define EX_ST_FP(x)	x
-#endif
-
-#ifndef EX_RETVAL
-#define EX_RETVAL(x)	x
+#define EX_ST_FP(x,y)	x
 #endif
 
 #ifndef LOAD
@@ -77,6 +74,87 @@
 	 */
 
 	.text
+#ifndef EX_RETVAL
+#define EX_RETVAL(x)	x
+__restore_fp:
+	VISExitHalf
+	retl
+	 nop
+ENTRY(U3_retl_o2_plus_g2_plus_g1_plus_1_fp)
+	add	%g1, 1, %g1
+	add	%g2, %g1, %g2
+	ba,pt	%xcc, __restore_fp
+	 add	%o2, %g2, %o0
+ENDPROC(U3_retl_o2_plus_g2_plus_g1_plus_1_fp)
+ENTRY(U3_retl_o2_plus_g2_fp)
+	ba,pt	%xcc, __restore_fp
+	 add	%o2, %g2, %o0
+ENDPROC(U3_retl_o2_plus_g2_fp)
+ENTRY(U3_retl_o2_plus_g2_plus_8_fp)
+	add	%g2, 8, %g2
+	ba,pt	%xcc, __restore_fp
+	 add	%o2, %g2, %o0
+ENDPROC(U3_retl_o2_plus_g2_plus_8_fp)
+ENTRY(U3_retl_o2)
+	retl
+	 mov	%o2, %o0
+ENDPROC(U3_retl_o2)
+ENTRY(U3_retl_o2_plus_1)
+	retl
+	 add	%o2, 1, %o0
+ENDPROC(U3_retl_o2_plus_1)
+ENTRY(U3_retl_o2_plus_4)
+	retl
+	 add	%o2, 4, %o0
+ENDPROC(U3_retl_o2_plus_4)
+ENTRY(U3_retl_o2_plus_8)
+	retl
+	 add	%o2, 8, %o0
+ENDPROC(U3_retl_o2_plus_8)
+ENTRY(U3_retl_o2_plus_g1_plus_1)
+	add	%g1, 1, %g1
+	retl
+	 add	%o2, %g1, %o0
+ENDPROC(U3_retl_o2_plus_g1_plus_1)
+ENTRY(U3_retl_o2_fp)
+	ba,pt	%xcc, __restore_fp
+	 mov	%o2, %o0
+ENDPROC(U3_retl_o2_fp)
+ENTRY(U3_retl_o2_plus_o3_sll_6_plus_0x80_fp)
+	sll	%o3, 6, %o3
+	add	%o3, 0x80, %o3
+	ba,pt	%xcc, __restore_fp
+	 add	%o2, %o3, %o0
+ENDPROC(U3_retl_o2_plus_o3_sll_6_plus_0x80_fp)
+ENTRY(U3_retl_o2_plus_o3_sll_6_plus_0x40_fp)
+	sll	%o3, 6, %o3
+	add	%o3, 0x40, %o3
+	ba,pt	%xcc, __restore_fp
+	 add	%o2, %o3, %o0
+ENDPROC(U3_retl_o2_plus_o3_sll_6_plus_0x40_fp)
+ENTRY(U3_retl_o2_plus_GS_plus_0x10)
+	add	GLOBAL_SPARE, 0x10, GLOBAL_SPARE
+	retl
+	 add	%o2, GLOBAL_SPARE, %o0
+ENDPROC(U3_retl_o2_plus_GS_plus_0x10)
+ENTRY(U3_retl_o2_plus_GS_plus_0x08)
+	add	GLOBAL_SPARE, 0x08, GLOBAL_SPARE
+	retl
+	 add	%o2, GLOBAL_SPARE, %o0
+ENDPROC(U3_retl_o2_plus_GS_plus_0x08)
+ENTRY(U3_retl_o2_and_7_plus_GS)
+	and	%o2, 7, %o2
+	retl
+	 add	%o2, GLOBAL_SPARE, %o2
+ENDPROC(U3_retl_o2_and_7_plus_GS)
+ENTRY(U3_retl_o2_and_7_plus_GS_plus_8)
+	add	GLOBAL_SPARE, 8, GLOBAL_SPARE
+	and	%o2, 7, %o2
+	retl
+	 add	%o2, GLOBAL_SPARE, %o2
+ENDPROC(U3_retl_o2_and_7_plus_GS_plus_8)
+#endif
+
 	.align		64
 
 	/* The cheetah's flexible spine, oversized liver, enlarged heart,
@@ -126,8 +204,8 @@ FUNC_NAME:	/* %o0=dst, %o1=src, %o2=len
 	 and		%g2, 0x38, %g2
 
 1:	subcc		%g1, 0x1, %g1
-	EX_LD_FP(LOAD(ldub, %o1 + 0x00, %o3))
-	EX_ST_FP(STORE(stb, %o3, %o1 + GLOBAL_SPARE))
+	EX_LD_FP(LOAD(ldub, %o1 + 0x00, %o3), U3_retl_o2_plus_g2_plus_g1_plus_1)
+	EX_ST_FP(STORE(stb, %o3, %o1 + GLOBAL_SPARE), U3_retl_o2_plus_g2_plus_g1_plus_1)
 	bgu,pt		%XCC, 1b
 	 add		%o1, 0x1, %o1
 
@@ -138,20 +216,20 @@ FUNC_NAME:	/* %o0=dst, %o1=src, %o2=len
 	be,pt		%icc, 3f
 	 alignaddr	%o1, %g0, %o1
 
-	EX_LD_FP(LOAD(ldd, %o1, %f4))
-1:	EX_LD_FP(LOAD(ldd, %o1 + 0x8, %f6))
+	EX_LD_FP(LOAD(ldd, %o1, %f4), U3_retl_o2_plus_g2)
+1:	EX_LD_FP(LOAD(ldd, %o1 + 0x8, %f6), U3_retl_o2_plus_g2)
 	add		%o1, 0x8, %o1
 	subcc		%g2, 0x8, %g2
 	faligndata	%f4, %f6, %f0
-	EX_ST_FP(STORE(std, %f0, %o0))
+	EX_ST_FP(STORE(std, %f0, %o0), U3_retl_o2_plus_g2_plus_8)
 	be,pn		%icc, 3f
 	 add		%o0, 0x8, %o0
 
-	EX_LD_FP(LOAD(ldd, %o1 + 0x8, %f4))
+	EX_LD_FP(LOAD(ldd, %o1 + 0x8, %f4), U3_retl_o2_plus_g2)
 	add		%o1, 0x8, %o1
 	subcc		%g2, 0x8, %g2
 	faligndata	%f6, %f4, %f2
-	EX_ST_FP(STORE(std, %f2, %o0))
+	EX_ST_FP(STORE(std, %f2, %o0), U3_retl_o2_plus_g2_plus_8)
 	bne,pt		%icc, 1b
 	 add		%o0, 0x8, %o0
 
@@ -161,25 +239,25 @@ FUNC_NAME:	/* %o0=dst, %o1=src, %o2=len
 	LOAD(prefetch, %o1 + 0x080, #one_read)
 	LOAD(prefetch, %o1 + 0x0c0, #one_read)
 	LOAD(prefetch, %o1 + 0x100, #one_read)
-	EX_LD_FP(LOAD(ldd, %o1 + 0x000, %f0))
+	EX_LD_FP(LOAD(ldd, %o1 + 0x000, %f0), U3_retl_o2)
 	LOAD(prefetch, %o1 + 0x140, #one_read)
-	EX_LD_FP(LOAD(ldd, %o1 + 0x008, %f2))
+	EX_LD_FP(LOAD(ldd, %o1 + 0x008, %f2), U3_retl_o2)
 	LOAD(prefetch, %o1 + 0x180, #one_read)
-	EX_LD_FP(LOAD(ldd, %o1 + 0x010, %f4))
+	EX_LD_FP(LOAD(ldd, %o1 + 0x010, %f4), U3_retl_o2)
 	LOAD(prefetch, %o1 + 0x1c0, #one_read)
 	faligndata	%f0, %f2, %f16
-	EX_LD_FP(LOAD(ldd, %o1 + 0x018, %f6))
+	EX_LD_FP(LOAD(ldd, %o1 + 0x018, %f6), U3_retl_o2)
 	faligndata	%f2, %f4, %f18
-	EX_LD_FP(LOAD(ldd, %o1 + 0x020, %f8))
+	EX_LD_FP(LOAD(ldd, %o1 + 0x020, %f8), U3_retl_o2)
 	faligndata	%f4, %f6, %f20
-	EX_LD_FP(LOAD(ldd, %o1 + 0x028, %f10))
+	EX_LD_FP(LOAD(ldd, %o1 + 0x028, %f10), U3_retl_o2)
 	faligndata	%f6, %f8, %f22
 
-	EX_LD_FP(LOAD(ldd, %o1 + 0x030, %f12))
+	EX_LD_FP(LOAD(ldd, %o1 + 0x030, %f12), U3_retl_o2)
 	faligndata	%f8, %f10, %f24
-	EX_LD_FP(LOAD(ldd, %o1 + 0x038, %f14))
+	EX_LD_FP(LOAD(ldd, %o1 + 0x038, %f14), U3_retl_o2)
 	faligndata	%f10, %f12, %f26
-	EX_LD_FP(LOAD(ldd, %o1 + 0x040, %f0))
+	EX_LD_FP(LOAD(ldd, %o1 + 0x040, %f0), U3_retl_o2)
 
 	subcc		GLOBAL_SPARE, 0x80, GLOBAL_SPARE
 	add		%o1, 0x40, %o1
@@ -190,26 +268,26 @@ FUNC_NAME:	/* %o0=dst, %o1=src, %o2=len
 
 	.align		64
 1:
-	EX_LD_FP(LOAD(ldd, %o1 + 0x008, %f2))
+	EX_LD_FP(LOAD(ldd, %o1 + 0x008, %f2), U3_retl_o2_plus_o3_sll_6_plus_0x80)
 	faligndata	%f12, %f14, %f28
-	EX_LD_FP(LOAD(ldd, %o1 + 0x010, %f4))
+	EX_LD_FP(LOAD(ldd, %o1 + 0x010, %f4), U3_retl_o2_plus_o3_sll_6_plus_0x80)
 	faligndata	%f14, %f0, %f30
-	EX_ST_FP(STORE_BLK(%f16, %o0))
-	EX_LD_FP(LOAD(ldd, %o1 + 0x018, %f6))
+	EX_ST_FP(STORE_BLK(%f16, %o0), U3_retl_o2_plus_o3_sll_6_plus_0x80)
+	EX_LD_FP(LOAD(ldd, %o1 + 0x018, %f6), U3_retl_o2_plus_o3_sll_6_plus_0x40)
 	faligndata	%f0, %f2, %f16
 	add		%o0, 0x40, %o0
 
-	EX_LD_FP(LOAD(ldd, %o1 + 0x020, %f8))
+	EX_LD_FP(LOAD(ldd, %o1 + 0x020, %f8), U3_retl_o2_plus_o3_sll_6_plus_0x40)
 	faligndata	%f2, %f4, %f18
-	EX_LD_FP(LOAD(ldd, %o1 + 0x028, %f10))
+	EX_LD_FP(LOAD(ldd, %o1 + 0x028, %f10), U3_retl_o2_plus_o3_sll_6_plus_0x40)
 	faligndata	%f4, %f6, %f20
-	EX_LD_FP(LOAD(ldd, %o1 + 0x030, %f12))
+	EX_LD_FP(LOAD(ldd, %o1 + 0x030, %f12), U3_retl_o2_plus_o3_sll_6_plus_0x40)
 	subcc		%o3, 0x01, %o3
 	faligndata	%f6, %f8, %f22
-	EX_LD_FP(LOAD(ldd, %o1 + 0x038, %f14))
+	EX_LD_FP(LOAD(ldd, %o1 + 0x038, %f14), U3_retl_o2_plus_o3_sll_6_plus_0x80)
 
 	faligndata	%f8, %f10, %f24
-	EX_LD_FP(LOAD(ldd, %o1 + 0x040, %f0))
+	EX_LD_FP(LOAD(ldd, %o1 + 0x040, %f0), U3_retl_o2_plus_o3_sll_6_plus_0x80)
 	LOAD(prefetch, %o1 + 0x1c0, #one_read)
 	faligndata	%f10, %f12, %f26
 	bg,pt		%XCC, 1b
@@ -217,29 +295,29 @@ FUNC_NAME:	/* %o0=dst, %o1=src, %o2=len
 
 	/* Finally we copy the last full 64-byte block. */
 2:
-	EX_LD_FP(LOAD(ldd, %o1 + 0x008, %f2))
+	EX_LD_FP(LOAD(ldd, %o1 + 0x008, %f2), U3_retl_o2_plus_o3_sll_6_plus_0x80)
 	faligndata	%f12, %f14, %f28
-	EX_LD_FP(LOAD(ldd, %o1 + 0x010, %f4))
+	EX_LD_FP(LOAD(ldd, %o1 + 0x010, %f4), U3_retl_o2_plus_o3_sll_6_plus_0x80)
 	faligndata	%f14, %f0, %f30
-	EX_ST_FP(STORE_BLK(%f16, %o0))
-	EX_LD_FP(LOAD(ldd, %o1 + 0x018, %f6))
+	EX_ST_FP(STORE_BLK(%f16, %o0), U3_retl_o2_plus_o3_sll_6_plus_0x80)
+	EX_LD_FP(LOAD(ldd, %o1 + 0x018, %f6), U3_retl_o2_plus_o3_sll_6_plus_0x40)
 	faligndata	%f0, %f2, %f16
-	EX_LD_FP(LOAD(ldd, %o1 + 0x020, %f8))
+	EX_LD_FP(LOAD(ldd, %o1 + 0x020, %f8), U3_retl_o2_plus_o3_sll_6_plus_0x40)
 	faligndata	%f2, %f4, %f18
-	EX_LD_FP(LOAD(ldd, %o1 + 0x028, %f10))
+	EX_LD_FP(LOAD(ldd, %o1 + 0x028, %f10), U3_retl_o2_plus_o3_sll_6_plus_0x40)
 	faligndata	%f4, %f6, %f20
-	EX_LD_FP(LOAD(ldd, %o1 + 0x030, %f12))
+	EX_LD_FP(LOAD(ldd, %o1 + 0x030, %f12), U3_retl_o2_plus_o3_sll_6_plus_0x40)
 	faligndata	%f6, %f8, %f22
-	EX_LD_FP(LOAD(ldd, %o1 + 0x038, %f14))
+	EX_LD_FP(LOAD(ldd, %o1 + 0x038, %f14), U3_retl_o2_plus_o3_sll_6_plus_0x40)
 	faligndata	%f8, %f10, %f24
 	cmp		%g1, 0
 	be,pt		%XCC, 1f
 	 add		%o0, 0x40, %o0
-	EX_LD_FP(LOAD(ldd, %o1 + 0x040, %f0))
+	EX_LD_FP(LOAD(ldd, %o1 + 0x040, %f0), U3_retl_o2_plus_o3_sll_6_plus_0x40)
 1:	faligndata	%f10, %f12, %f26
 	faligndata	%f12, %f14, %f28
 	faligndata	%f14, %f0, %f30
-	EX_ST_FP(STORE_BLK(%f16, %o0))
+	EX_ST_FP(STORE_BLK(%f16, %o0), U3_retl_o2_plus_o3_sll_6_plus_0x40)
 	add		%o0, 0x40, %o0
 	add		%o1, 0x40, %o1
 	membar		#Sync
@@ -259,20 +337,20 @@ FUNC_NAME:	/* %o0=dst, %o1=src, %o2=len
 
 	sub		%o2, %g2, %o2
 	be,a,pt		%XCC, 1f
-	 EX_LD_FP(LOAD(ldd, %o1 + 0x00, %f0))
+	 EX_LD_FP(LOAD(ldd, %o1 + 0x00, %f0), U3_retl_o2_plus_g2)
 
-1:	EX_LD_FP(LOAD(ldd, %o1 + 0x08, %f2))
+1:	EX_LD_FP(LOAD(ldd, %o1 + 0x08, %f2), U3_retl_o2_plus_g2)
 	add		%o1, 0x8, %o1
 	subcc		%g2, 0x8, %g2
 	faligndata	%f0, %f2, %f8
-	EX_ST_FP(STORE(std, %f8, %o0))
+	EX_ST_FP(STORE(std, %f8, %o0), U3_retl_o2_plus_g2_plus_8)
 	be,pn		%XCC, 2f
 	 add		%o0, 0x8, %o0
-	EX_LD_FP(LOAD(ldd, %o1 + 0x08, %f0))
+	EX_LD_FP(LOAD(ldd, %o1 + 0x08, %f0), U3_retl_o2_plus_g2)
 	add		%o1, 0x8, %o1
 	subcc		%g2, 0x8, %g2
 	faligndata	%f2, %f0, %f8
-	EX_ST_FP(STORE(std, %f8, %o0))
+	EX_ST_FP(STORE(std, %f8, %o0), U3_retl_o2_plus_g2_plus_8)
 	bne,pn		%XCC, 1b
 	 add		%o0, 0x8, %o0
 
@@ -292,30 +370,33 @@ FUNC_NAME:	/* %o0=dst, %o1=src, %o2=len
 	 andcc		%o2, 0x8, %g0
 	be,pt		%icc, 1f
 	 nop
-	EX_LD(LOAD(ldx, %o1, %o5))
-	EX_ST(STORE(stx, %o5, %o1 + %o3))
+	EX_LD(LOAD(ldx, %o1, %o5), U3_retl_o2)
+	EX_ST(STORE(stx, %o5, %o1 + %o3), U3_retl_o2)
 	add		%o1, 0x8, %o1
+	sub		%o2, 8, %o2
 
 1:	andcc		%o2, 0x4, %g0
 	be,pt		%icc, 1f
 	 nop
-	EX_LD(LOAD(lduw, %o1, %o5))
-	EX_ST(STORE(stw, %o5, %o1 + %o3))
+	EX_LD(LOAD(lduw, %o1, %o5), U3_retl_o2)
+	EX_ST(STORE(stw, %o5, %o1 + %o3), U3_retl_o2)
 	add		%o1, 0x4, %o1
+	sub		%o2, 4, %o2
 
 1:	andcc		%o2, 0x2, %g0
 	be,pt		%icc, 1f
 	 nop
-	EX_LD(LOAD(lduh, %o1, %o5))
-	EX_ST(STORE(sth, %o5, %o1 + %o3))
+	EX_LD(LOAD(lduh, %o1, %o5), U3_retl_o2)
+	EX_ST(STORE(sth, %o5, %o1 + %o3), U3_retl_o2)
 	add		%o1, 0x2, %o1
+	sub		%o2, 2, %o2
 
 1:	andcc		%o2, 0x1, %g0
 	be,pt		%icc, 85f
 	 nop
-	EX_LD(LOAD(ldub, %o1, %o5))
+	EX_LD(LOAD(ldub, %o1, %o5), U3_retl_o2)
 	ba,pt		%xcc, 85f
-	 EX_ST(STORE(stb, %o5, %o1 + %o3))
+	 EX_ST(STORE(stb, %o5, %o1 + %o3), U3_retl_o2)
 
 	.align		64
 70: /* 16 < len <= 64 */
@@ -326,26 +407,26 @@ FUNC_NAME:	/* %o0=dst, %o1=src, %o2=len
 	andn		%o2, 0xf, GLOBAL_SPARE
 	and		%o2, 0xf, %o2
 1:	subcc		GLOBAL_SPARE, 0x10, GLOBAL_SPARE
-	EX_LD(LOAD(ldx, %o1 + 0x00, %o5))
-	EX_LD(LOAD(ldx, %o1 + 0x08, %g1))
-	EX_ST(STORE(stx, %o5, %o1 + %o3))
+	EX_LD(LOAD(ldx, %o1 + 0x00, %o5), U3_retl_o2_plus_GS_plus_0x10)
+	EX_LD(LOAD(ldx, %o1 + 0x08, %g1), U3_retl_o2_plus_GS_plus_0x10)
+	EX_ST(STORE(stx, %o5, %o1 + %o3), U3_retl_o2_plus_GS_plus_0x10)
 	add		%o1, 0x8, %o1
-	EX_ST(STORE(stx, %g1, %o1 + %o3))
+	EX_ST(STORE(stx, %g1, %o1 + %o3), U3_retl_o2_plus_GS_plus_0x08)
 	bgu,pt		%XCC, 1b
 	 add		%o1, 0x8, %o1
 73:	andcc		%o2, 0x8, %g0
 	be,pt		%XCC, 1f
 	 nop
 	sub		%o2, 0x8, %o2
-	EX_LD(LOAD(ldx, %o1, %o5))
-	EX_ST(STORE(stx, %o5, %o1 + %o3))
+	EX_LD(LOAD(ldx, %o1, %o5), U3_retl_o2_plus_8)
+	EX_ST(STORE(stx, %o5, %o1 + %o3), U3_retl_o2_plus_8)
 	add		%o1, 0x8, %o1
 1:	andcc		%o2, 0x4, %g0
 	be,pt		%XCC, 1f
 	 nop
 	sub		%o2, 0x4, %o2
-	EX_LD(LOAD(lduw, %o1, %o5))
-	EX_ST(STORE(stw, %o5, %o1 + %o3))
+	EX_LD(LOAD(lduw, %o1, %o5), U3_retl_o2_plus_4)
+	EX_ST(STORE(stw, %o5, %o1 + %o3), U3_retl_o2_plus_4)
 	add		%o1, 0x4, %o1
 1:	cmp		%o2, 0
 	be,pt		%XCC, 85f
@@ -361,8 +442,8 @@ FUNC_NAME:	/* %o0=dst, %o1=src, %o2=len
 	sub		%o2, %g1, %o2
 
 1:	subcc		%g1, 1, %g1
-	EX_LD(LOAD(ldub, %o1, %o5))
-	EX_ST(STORE(stb, %o5, %o1 + %o3))
+	EX_LD(LOAD(ldub, %o1, %o5), U3_retl_o2_plus_g1_plus_1)
+	EX_ST(STORE(stb, %o5, %o1 + %o3), U3_retl_o2_plus_g1_plus_1)
 	bgu,pt		%icc, 1b
 	 add		%o1, 1, %o1
 
@@ -378,16 +459,16 @@ FUNC_NAME:	/* %o0=dst, %o1=src, %o2=len
 
 8:	mov		64, %o3
 	andn		%o1, 0x7, %o1
-	EX_LD(LOAD(ldx, %o1, %g2))
+	EX_LD(LOAD(ldx, %o1, %g2), U3_retl_o2)
 	sub		%o3, %g1, %o3
 	andn		%o2, 0x7, GLOBAL_SPARE
 	sllx		%g2, %g1, %g2
-1:	EX_LD(LOAD(ldx, %o1 + 0x8, %g3))
+1:	EX_LD(LOAD(ldx, %o1 + 0x8, %g3), U3_retl_o2_and_7_plus_GS)
 	subcc		GLOBAL_SPARE, 0x8, GLOBAL_SPARE
 	add		%o1, 0x8, %o1
 	srlx		%g3, %o3, %o5
 	or		%o5, %g2, %o5
-	EX_ST(STORE(stx, %o5, %o0))
+	EX_ST(STORE(stx, %o5, %o0), U3_retl_o2_and_7_plus_GS_plus_8)
 	add		%o0, 0x8, %o0
 	bgu,pt		%icc, 1b
 	 sllx		%g3, %g1, %g2
@@ -407,8 +488,8 @@ FUNC_NAME:	/* %o0=dst, %o1=src, %o2=len
 
 1:
 	subcc		%o2, 4, %o2
-	EX_LD(LOAD(lduw, %o1, %g1))
-	EX_ST(STORE(stw, %g1, %o1 + %o3))
+	EX_LD(LOAD(lduw, %o1, %g1), U3_retl_o2_plus_4)
+	EX_ST(STORE(stw, %g1, %o1 + %o3), U3_retl_o2_plus_4)
 	bgu,pt		%XCC, 1b
 	 add		%o1, 4, %o1
 
@@ -418,8 +499,8 @@ FUNC_NAME:	/* %o0=dst, %o1=src, %o2=len
 	.align		32
 90:
 	subcc		%o2, 1, %o2
-	EX_LD(LOAD(ldub, %o1, %g1))
-	EX_ST(STORE(stb, %g1, %o1 + %o3))
+	EX_LD(LOAD(ldub, %o1, %g1), U3_retl_o2_plus_1)
+	EX_ST(STORE(stb, %g1, %o1 + %o3), U3_retl_o2_plus_1)
 	bgu,pt		%XCC, 90b
 	 add		%o1, 1, %o1
 	retl
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/lib/user_fixup.c linux-libre-4.4.107-gnu/arch/sparc/lib/user_fixup.c
--- linux-libre-4.4-gnu/arch/sparc/lib/user_fixup.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sparc/lib/user_fixup.c	1969-12-31 19:00:00.000000000 -0500
@@ -1,71 +0,0 @@
-/* user_fixup.c: Fix up user copy faults.
- *
- * Copyright (C) 2004 David S. Miller <davem@redhat.com>
- */
-
-#include <linux/compiler.h>
-#include <linux/kernel.h>
-#include <linux/string.h>
-#include <linux/errno.h>
-#include <linux/module.h>
-
-#include <asm/uaccess.h>
-
-/* Calculating the exact fault address when using
- * block loads and stores can be very complicated.
- *
- * Instead of trying to be clever and handling all
- * of the cases, just fix things up simply here.
- */
-
-static unsigned long compute_size(unsigned long start, unsigned long size, unsigned long *offset)
-{
-	unsigned long fault_addr = current_thread_info()->fault_address;
-	unsigned long end = start + size;
-
-	if (fault_addr < start || fault_addr >= end) {
-		*offset = 0;
-	} else {
-		*offset = fault_addr - start;
-		size = end - fault_addr;
-	}
-	return size;
-}
-
-unsigned long copy_from_user_fixup(void *to, const void __user *from, unsigned long size)
-{
-	unsigned long offset;
-
-	size = compute_size((unsigned long) from, size, &offset);
-	if (likely(size))
-		memset(to + offset, 0, size);
-
-	return size;
-}
-EXPORT_SYMBOL(copy_from_user_fixup);
-
-unsigned long copy_to_user_fixup(void __user *to, const void *from, unsigned long size)
-{
-	unsigned long offset;
-
-	return compute_size((unsigned long) to, size, &offset);
-}
-EXPORT_SYMBOL(copy_to_user_fixup);
-
-unsigned long copy_in_user_fixup(void __user *to, void __user *from, unsigned long size)
-{
-	unsigned long fault_addr = current_thread_info()->fault_address;
-	unsigned long start = (unsigned long) to;
-	unsigned long end = start + size;
-
-	if (fault_addr >= start && fault_addr < end)
-		return end - fault_addr;
-
-	start = (unsigned long) from;
-	end = start + size;
-	if (fault_addr >= start && fault_addr < end)
-		return end - fault_addr;
-
-	return size;
-}
-EXPORT_SYMBOL(copy_in_user_fixup);
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/mm/fault_64.c linux-libre-4.4.107-gnu/arch/sparc/mm/fault_64.c
--- linux-libre-4.4-gnu/arch/sparc/mm/fault_64.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sparc/mm/fault_64.c	2017-12-20 04:05:01.000000000 -0500
@@ -479,14 +479,14 @@ good_area:
 	up_read(&mm->mmap_sem);
 
 	mm_rss = get_mm_rss(mm);
-#if defined(CONFIG_HUGETLB_PAGE) || defined(CONFIG_TRANSPARENT_HUGEPAGE)
-	mm_rss -= (mm->context.huge_pte_count * (HPAGE_SIZE / PAGE_SIZE));
+#if defined(CONFIG_TRANSPARENT_HUGEPAGE)
+	mm_rss -= (mm->context.thp_pte_count * (HPAGE_SIZE / PAGE_SIZE));
 #endif
 	if (unlikely(mm_rss >
 		     mm->context.tsb_block[MM_TSB_BASE].tsb_rss_limit))
 		tsb_grow(mm, MM_TSB_BASE, mm_rss);
 #if defined(CONFIG_HUGETLB_PAGE) || defined(CONFIG_TRANSPARENT_HUGEPAGE)
-	mm_rss = mm->context.huge_pte_count;
+	mm_rss = mm->context.hugetlb_pte_count + mm->context.thp_pte_count;
 	if (unlikely(mm_rss >
 		     mm->context.tsb_block[MM_TSB_HUGE].tsb_rss_limit)) {
 		if (mm->context.tsb_block[MM_TSB_HUGE].tsb)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/mm/hugetlbpage.c linux-libre-4.4.107-gnu/arch/sparc/mm/hugetlbpage.c
--- linux-libre-4.4-gnu/arch/sparc/mm/hugetlbpage.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sparc/mm/hugetlbpage.c	2017-12-20 04:05:01.000000000 -0500
@@ -115,7 +115,7 @@ hugetlb_get_unmapped_area(struct file *f
 		addr = ALIGN(addr, HPAGE_SIZE);
 		vma = find_vma(mm, addr);
 		if (task_size - len >= addr &&
-		    (!vma || addr + len <= vma->vm_start))
+		    (!vma || addr + len <= vm_start_gap(vma)))
 			return addr;
 	}
 	if (mm->get_unmapped_area == arch_get_unmapped_area)
@@ -176,17 +176,31 @@ void set_huge_pte_at(struct mm_struct *m
 		     pte_t *ptep, pte_t entry)
 {
 	int i;
+	pte_t orig[2];
+	unsigned long nptes;
 
 	if (!pte_present(*ptep) && pte_present(entry))
-		mm->context.huge_pte_count++;
+		mm->context.hugetlb_pte_count++;
 
 	addr &= HPAGE_MASK;
-	for (i = 0; i < (1 << HUGETLB_PAGE_ORDER); i++) {
-		set_pte_at(mm, addr, ptep, entry);
+
+	nptes = 1 << HUGETLB_PAGE_ORDER;
+	orig[0] = *ptep;
+	orig[1] = *(ptep + nptes / 2);
+	for (i = 0; i < nptes; i++) {
+		*ptep = entry;
 		ptep++;
 		addr += PAGE_SIZE;
 		pte_val(entry) += PAGE_SIZE;
 	}
+
+	/* Issue TLB flush at REAL_HPAGE_SIZE boundaries */
+	addr -= REAL_HPAGE_SIZE;
+	ptep -= nptes / 2;
+	maybe_tlb_batch_add(mm, addr, ptep, orig[1], 0);
+	addr -= REAL_HPAGE_SIZE;
+	ptep -= nptes / 2;
+	maybe_tlb_batch_add(mm, addr, ptep, orig[0], 0);
 }
 
 pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr,
@@ -194,19 +208,28 @@ pte_t huge_ptep_get_and_clear(struct mm_
 {
 	pte_t entry;
 	int i;
+	unsigned long nptes;
 
 	entry = *ptep;
 	if (pte_present(entry))
-		mm->context.huge_pte_count--;
+		mm->context.hugetlb_pte_count--;
 
 	addr &= HPAGE_MASK;
-
-	for (i = 0; i < (1 << HUGETLB_PAGE_ORDER); i++) {
-		pte_clear(mm, addr, ptep);
+	nptes = 1 << HUGETLB_PAGE_ORDER;
+	for (i = 0; i < nptes; i++) {
+		*ptep = __pte(0UL);
 		addr += PAGE_SIZE;
 		ptep++;
 	}
 
+	/* Issue TLB flush at REAL_HPAGE_SIZE boundaries */
+	addr -= REAL_HPAGE_SIZE;
+	ptep -= nptes / 2;
+	maybe_tlb_batch_add(mm, addr, ptep, entry, 0);
+	addr -= REAL_HPAGE_SIZE;
+	ptep -= nptes / 2;
+	maybe_tlb_batch_add(mm, addr, ptep, entry, 0);
+
 	return entry;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/mm/init_32.c linux-libre-4.4.107-gnu/arch/sparc/mm/init_32.c
--- linux-libre-4.4-gnu/arch/sparc/mm/init_32.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sparc/mm/init_32.c	2017-12-20 04:05:01.000000000 -0500
@@ -301,7 +301,7 @@ void __init mem_init(void)
 
 
 	/* Saves us work later. */
-	memset((void *)&empty_zero_page, 0, PAGE_SIZE);
+	memset((void *)empty_zero_page, 0, PAGE_SIZE);
 
 	i = last_valid_pfn >> ((20 - PAGE_SHIFT) + 5);
 	i += 1;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/mm/init_64.c linux-libre-4.4.107-gnu/arch/sparc/mm/init_64.c
--- linux-libre-4.4-gnu/arch/sparc/mm/init_64.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sparc/mm/init_64.c	2017-12-20 04:05:01.000000000 -0500
@@ -324,18 +324,6 @@ static void __update_mmu_tsb_insert(stru
 	tsb_insert(tsb, tag, tte);
 }
 
-#if defined(CONFIG_HUGETLB_PAGE) || defined(CONFIG_TRANSPARENT_HUGEPAGE)
-static inline bool is_hugetlb_pte(pte_t pte)
-{
-	if ((tlb_type == hypervisor &&
-	     (pte_val(pte) & _PAGE_SZALL_4V) == _PAGE_SZHUGE_4V) ||
-	    (tlb_type != hypervisor &&
-	     (pte_val(pte) & _PAGE_SZALL_4U) == _PAGE_SZHUGE_4U))
-		return true;
-	return false;
-}
-#endif
-
 void update_mmu_cache(struct vm_area_struct *vma, unsigned long address, pte_t *ptep)
 {
 	struct mm_struct *mm;
@@ -358,7 +346,8 @@ void update_mmu_cache(struct vm_area_str
 	spin_lock_irqsave(&mm->context.lock, flags);
 
 #if defined(CONFIG_HUGETLB_PAGE) || defined(CONFIG_TRANSPARENT_HUGEPAGE)
-	if (mm->context.huge_pte_count && is_hugetlb_pte(pte))
+	if ((mm->context.hugetlb_pte_count || mm->context.thp_pte_count) &&
+	    is_hugetlb_pte(pte))
 		__update_mmu_tsb_insert(mm, MM_TSB_HUGE, REAL_HPAGE_SHIFT,
 					address, pte_val(pte));
 	else
@@ -667,10 +656,58 @@ EXPORT_SYMBOL(__flush_dcache_range);
 
 /* get_new_mmu_context() uses "cache + 1".  */
 DEFINE_SPINLOCK(ctx_alloc_lock);
-unsigned long tlb_context_cache = CTX_FIRST_VERSION - 1;
+unsigned long tlb_context_cache = CTX_FIRST_VERSION;
 #define MAX_CTX_NR	(1UL << CTX_NR_BITS)
 #define CTX_BMAP_SLOTS	BITS_TO_LONGS(MAX_CTX_NR)
 DECLARE_BITMAP(mmu_context_bmap, MAX_CTX_NR);
+DEFINE_PER_CPU(struct mm_struct *, per_cpu_secondary_mm) = {0};
+
+static void mmu_context_wrap(void)
+{
+	unsigned long old_ver = tlb_context_cache & CTX_VERSION_MASK;
+	unsigned long new_ver, new_ctx, old_ctx;
+	struct mm_struct *mm;
+	int cpu;
+
+	bitmap_zero(mmu_context_bmap, 1 << CTX_NR_BITS);
+
+	/* Reserve kernel context */
+	set_bit(0, mmu_context_bmap);
+
+	new_ver = (tlb_context_cache & CTX_VERSION_MASK) + CTX_FIRST_VERSION;
+	if (unlikely(new_ver == 0))
+		new_ver = CTX_FIRST_VERSION;
+	tlb_context_cache = new_ver;
+
+	/*
+	 * Make sure that any new mm that are added into per_cpu_secondary_mm,
+	 * are going to go through get_new_mmu_context() path.
+	 */
+	mb();
+
+	/*
+	 * Updated versions to current on those CPUs that had valid secondary
+	 * contexts
+	 */
+	for_each_online_cpu(cpu) {
+		/*
+		 * If a new mm is stored after we took this mm from the array,
+		 * it will go into get_new_mmu_context() path, because we
+		 * already bumped the version in tlb_context_cache.
+		 */
+		mm = per_cpu(per_cpu_secondary_mm, cpu);
+
+		if (unlikely(!mm || mm == &init_mm))
+			continue;
+
+		old_ctx = mm->context.sparc64_ctx_val;
+		if (likely((old_ctx & CTX_VERSION_MASK) == old_ver)) {
+			new_ctx = (old_ctx & ~CTX_VERSION_MASK) | new_ver;
+			set_bit(new_ctx & CTX_NR_MASK, mmu_context_bmap);
+			mm->context.sparc64_ctx_val = new_ctx;
+		}
+	}
+}
 
 /* Caller does TLB context flushing on local CPU if necessary.
  * The caller also ensures that CTX_VALID(mm->context) is false.
@@ -686,48 +723,30 @@ void get_new_mmu_context(struct mm_struc
 {
 	unsigned long ctx, new_ctx;
 	unsigned long orig_pgsz_bits;
-	int new_version;
 
 	spin_lock(&ctx_alloc_lock);
+retry:
+	/* wrap might have happened, test again if our context became valid */
+	if (unlikely(CTX_VALID(mm->context)))
+		goto out;
 	orig_pgsz_bits = (mm->context.sparc64_ctx_val & CTX_PGSZ_MASK);
 	ctx = (tlb_context_cache + 1) & CTX_NR_MASK;
 	new_ctx = find_next_zero_bit(mmu_context_bmap, 1 << CTX_NR_BITS, ctx);
-	new_version = 0;
 	if (new_ctx >= (1 << CTX_NR_BITS)) {
 		new_ctx = find_next_zero_bit(mmu_context_bmap, ctx, 1);
 		if (new_ctx >= ctx) {
-			int i;
-			new_ctx = (tlb_context_cache & CTX_VERSION_MASK) +
-				CTX_FIRST_VERSION;
-			if (new_ctx == 1)
-				new_ctx = CTX_FIRST_VERSION;
-
-			/* Don't call memset, for 16 entries that's just
-			 * plain silly...
-			 */
-			mmu_context_bmap[0] = 3;
-			mmu_context_bmap[1] = 0;
-			mmu_context_bmap[2] = 0;
-			mmu_context_bmap[3] = 0;
-			for (i = 4; i < CTX_BMAP_SLOTS; i += 4) {
-				mmu_context_bmap[i + 0] = 0;
-				mmu_context_bmap[i + 1] = 0;
-				mmu_context_bmap[i + 2] = 0;
-				mmu_context_bmap[i + 3] = 0;
-			}
-			new_version = 1;
-			goto out;
+			mmu_context_wrap();
+			goto retry;
 		}
 	}
+	if (mm->context.sparc64_ctx_val)
+		cpumask_clear(mm_cpumask(mm));
 	mmu_context_bmap[new_ctx>>6] |= (1UL << (new_ctx & 63));
 	new_ctx |= (tlb_context_cache & CTX_VERSION_MASK);
-out:
 	tlb_context_cache = new_ctx;
 	mm->context.sparc64_ctx_val = new_ctx | orig_pgsz_bits;
+out:
 	spin_unlock(&ctx_alloc_lock);
-
-	if (unlikely(new_version))
-		smp_new_mmu_context_version();
 }
 
 static int numa_enabled = 1;
@@ -811,8 +830,10 @@ struct mdesc_mblock {
 };
 static struct mdesc_mblock *mblocks;
 static int num_mblocks;
+static int find_numa_node_for_addr(unsigned long pa,
+				   struct node_mem_mask *pnode_mask);
 
-static unsigned long ra_to_pa(unsigned long addr)
+static unsigned long __init ra_to_pa(unsigned long addr)
 {
 	int i;
 
@@ -828,8 +849,11 @@ static unsigned long ra_to_pa(unsigned l
 	return addr;
 }
 
-static int find_node(unsigned long addr)
+static int __init find_node(unsigned long addr)
 {
+	static bool search_mdesc = true;
+	static struct node_mem_mask last_mem_mask = { ~0UL, ~0UL };
+	static int last_index;
 	int i;
 
 	addr = ra_to_pa(addr);
@@ -839,13 +863,30 @@ static int find_node(unsigned long addr)
 		if ((addr & p->mask) == p->val)
 			return i;
 	}
-	/* The following condition has been observed on LDOM guests.*/
-	WARN_ONCE(1, "find_node: A physical address doesn't match a NUMA node"
-		" rule. Some physical memory will be owned by node 0.");
-	return 0;
+	/* The following condition has been observed on LDOM guests because
+	 * node_masks only contains the best latency mask and value.
+	 * LDOM guest's mdesc can contain a single latency group to
+	 * cover multiple address range. Print warning message only if the
+	 * address cannot be found in node_masks nor mdesc.
+	 */
+	if ((search_mdesc) &&
+	    ((addr & last_mem_mask.mask) != last_mem_mask.val)) {
+		/* find the available node in the mdesc */
+		last_index = find_numa_node_for_addr(addr, &last_mem_mask);
+		numadbg("find_node: latency group for address 0x%lx is %d\n",
+			addr, last_index);
+		if ((last_index < 0) || (last_index >= num_node_masks)) {
+			/* WARN_ONCE() and use default group 0 */
+			WARN_ONCE(1, "find_node: A physical address doesn't match a NUMA node rule. Some physical memory will be owned by node 0.");
+			search_mdesc = false;
+			last_index = 0;
+		}
+	}
+
+	return last_index;
 }
 
-static u64 memblock_nid_range(u64 start, u64 end, int *nid)
+static u64 __init memblock_nid_range(u64 start, u64 end, int *nid)
 {
 	*nid = find_node(start);
 	start += PAGE_SIZE;
@@ -1169,6 +1210,41 @@ int __node_distance(int from, int to)
 	return numa_latency[from][to];
 }
 
+static int find_numa_node_for_addr(unsigned long pa,
+				   struct node_mem_mask *pnode_mask)
+{
+	struct mdesc_handle *md = mdesc_grab();
+	u64 node, arc;
+	int i = 0;
+
+	node = mdesc_node_by_name(md, MDESC_NODE_NULL, "latency-groups");
+	if (node == MDESC_NODE_NULL)
+		goto out;
+
+	mdesc_for_each_node_by_name(md, node, "group") {
+		mdesc_for_each_arc(arc, md, node, MDESC_ARC_TYPE_FWD) {
+			u64 target = mdesc_arc_target(md, arc);
+			struct mdesc_mlgroup *m = find_mlgroup(target);
+
+			if (!m)
+				continue;
+			if ((pa & m->mask) == m->match) {
+				if (pnode_mask) {
+					pnode_mask->mask = m->mask;
+					pnode_mask->val = m->match;
+				}
+				mdesc_release(md);
+				return i;
+			}
+		}
+		i++;
+	}
+
+out:
+	mdesc_release(md);
+	return -1;
+}
+
 static int find_best_numa_node_for_mlgroup(struct mdesc_mlgroup *grp)
 {
 	int i;
@@ -1267,13 +1343,6 @@ static int __init numa_parse_mdesc(void)
 	int i, j, err, count;
 	u64 node;
 
-	/* Some sane defaults for numa latency values */
-	for (i = 0; i < MAX_NUMNODES; i++) {
-		for (j = 0; j < MAX_NUMNODES; j++)
-			numa_latency[i][j] = (i == j) ?
-				LOCAL_DISTANCE : REMOTE_DISTANCE;
-	}
-
 	node = mdesc_node_by_name(md, MDESC_NODE_NULL, "latency-groups");
 	if (node == MDESC_NODE_NULL) {
 		mdesc_release(md);
@@ -1369,10 +1438,18 @@ static int __init numa_parse_sun4u(void)
 
 static int __init bootmem_init_numa(void)
 {
+	int i, j;
 	int err = -1;
 
 	numadbg("bootmem_init_numa()\n");
 
+	/* Some sane defaults for numa latency values */
+	for (i = 0; i < MAX_NUMNODES; i++) {
+		for (j = 0; j < MAX_NUMNODES; j++)
+			numa_latency[i][j] = (i == j) ?
+				LOCAL_DISTANCE : REMOTE_DISTANCE;
+	}
+
 	if (numa_enabled) {
 		if (tlb_type == hypervisor)
 			err = numa_parse_mdesc();
@@ -1446,7 +1523,7 @@ bool kern_addr_valid(unsigned long addr)
 	if ((long)addr < 0L) {
 		unsigned long pa = __pa(addr);
 
-		if ((addr >> max_phys_bits) != 0UL)
+		if ((pa >> max_phys_bits) != 0UL)
 			return false;
 
 		return pfn_valid(pa >> PAGE_SHIFT);
@@ -2325,10 +2402,17 @@ void __init mem_init(void)
 {
 	high_memory = __va(last_valid_pfn << PAGE_SHIFT);
 
-	register_page_bootmem_info();
 	free_all_bootmem();
 
 	/*
+	 * Must be done after boot memory is put on freelist, because here we
+	 * might set fields in deferred struct pages that have not yet been
+	 * initialized, and free_all_bootmem() initializes all the reserved
+	 * deferred pages for us.
+	 */
+	register_page_bootmem_info();
+
+	/*
 	 * Set up the zero page, mark it reserved, so that page count
 	 * is not manipulated when freeing the page from user ptes.
 	 */
@@ -2832,9 +2916,10 @@ void hugetlb_setup(struct pt_regs *regs)
 	 * the Data-TLB for huge pages.
 	 */
 	if (tlb_type == cheetah_plus) {
+		bool need_context_reload = false;
 		unsigned long ctx;
 
-		spin_lock(&ctx_alloc_lock);
+		spin_lock_irq(&ctx_alloc_lock);
 		ctx = mm->context.sparc64_ctx_val;
 		ctx &= ~CTX_PGSZ_MASK;
 		ctx |= CTX_PGSZ_BASE << CTX_PGSZ0_SHIFT;
@@ -2853,9 +2938,12 @@ void hugetlb_setup(struct pt_regs *regs)
 			 * also executing in this address space.
 			 */
 			mm->context.sparc64_ctx_val = ctx;
-			on_each_cpu(context_reload, mm, 0);
+			need_context_reload = true;
 		}
-		spin_unlock(&ctx_alloc_lock);
+		spin_unlock_irq(&ctx_alloc_lock);
+
+		if (need_context_reload)
+			on_each_cpu(context_reload, mm, 0);
 	}
 }
 #endif
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/mm/tlb.c linux-libre-4.4.107-gnu/arch/sparc/mm/tlb.c
--- linux-libre-4.4-gnu/arch/sparc/mm/tlb.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sparc/mm/tlb.c	2017-12-20 04:05:01.000000000 -0500
@@ -67,7 +67,7 @@ void arch_leave_lazy_mmu_mode(void)
 }
 
 static void tlb_batch_add_one(struct mm_struct *mm, unsigned long vaddr,
-			      bool exec)
+			      bool exec, bool huge)
 {
 	struct tlb_batch *tb = &get_cpu_var(tlb_batch);
 	unsigned long nr;
@@ -84,13 +84,21 @@ static void tlb_batch_add_one(struct mm_
 	}
 
 	if (!tb->active) {
-		flush_tsb_user_page(mm, vaddr);
+		flush_tsb_user_page(mm, vaddr, huge);
 		global_flush_tlb_page(mm, vaddr);
 		goto out;
 	}
 
-	if (nr == 0)
+	if (nr == 0) {
 		tb->mm = mm;
+		tb->huge = huge;
+	}
+
+	if (tb->huge != huge) {
+		flush_tlb_pending();
+		tb->huge = huge;
+		nr = 0;
+	}
 
 	tb->vaddrs[nr] = vaddr;
 	tb->tlb_nr = ++nr;
@@ -104,6 +112,8 @@ out:
 void tlb_batch_add(struct mm_struct *mm, unsigned long vaddr,
 		   pte_t *ptep, pte_t orig, int fullmm)
 {
+	bool huge = is_hugetlb_pte(orig);
+
 	if (tlb_type != hypervisor &&
 	    pte_dirty(orig)) {
 		unsigned long paddr, pfn = pte_pfn(orig);
@@ -129,7 +139,7 @@ void tlb_batch_add(struct mm_struct *mm,
 
 no_cache_flush:
 	if (!fullmm)
-		tlb_batch_add_one(mm, vaddr, pte_exec(orig));
+		tlb_batch_add_one(mm, vaddr, pte_exec(orig), huge);
 }
 
 #ifdef CONFIG_TRANSPARENT_HUGEPAGE
@@ -145,7 +155,7 @@ static void tlb_batch_pmd_scan(struct mm
 		if (pte_val(*pte) & _PAGE_VALID) {
 			bool exec = pte_exec(*pte);
 
-			tlb_batch_add_one(mm, vaddr, exec);
+			tlb_batch_add_one(mm, vaddr, exec, false);
 		}
 		pte++;
 		vaddr += PAGE_SIZE;
@@ -165,9 +175,9 @@ void set_pmd_at(struct mm_struct *mm, un
 
 	if ((pmd_val(pmd) ^ pmd_val(orig)) & _PAGE_PMD_HUGE) {
 		if (pmd_val(pmd) & _PAGE_PMD_HUGE)
-			mm->context.huge_pte_count++;
+			mm->context.thp_pte_count++;
 		else
-			mm->context.huge_pte_count--;
+			mm->context.thp_pte_count--;
 
 		/* Do not try to allocate the TSB hash table if we
 		 * don't have one already.  We have various locks held
@@ -185,8 +195,9 @@ void set_pmd_at(struct mm_struct *mm, un
 			pte_t orig_pte = __pte(pmd_val(orig));
 			bool exec = pte_exec(orig_pte);
 
-			tlb_batch_add_one(mm, addr, exec);
-			tlb_batch_add_one(mm, addr + REAL_HPAGE_SIZE, exec);
+			tlb_batch_add_one(mm, addr, exec, true);
+			tlb_batch_add_one(mm, addr + REAL_HPAGE_SIZE, exec,
+					true);
 		} else {
 			tlb_batch_pmd_scan(mm, addr, orig);
 		}
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/mm/tsb.c linux-libre-4.4.107-gnu/arch/sparc/mm/tsb.c
--- linux-libre-4.4-gnu/arch/sparc/mm/tsb.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sparc/mm/tsb.c	2017-12-20 04:05:01.000000000 -0500
@@ -27,6 +27,20 @@ static inline int tag_compare(unsigned l
 	return (tag == (vaddr >> 22));
 }
 
+static void flush_tsb_kernel_range_scan(unsigned long start, unsigned long end)
+{
+	unsigned long idx;
+
+	for (idx = 0; idx < KERNEL_TSB_NENTRIES; idx++) {
+		struct tsb *ent = &swapper_tsb[idx];
+		unsigned long match = idx << 13;
+
+		match |= (ent->tag << 22);
+		if (match >= start && match < end)
+			ent->tag = (1UL << TSB_TAG_INVALID_BIT);
+	}
+}
+
 /* TSB flushes need only occur on the processor initiating the address
  * space modification, not on each cpu the address space has run on.
  * Only the TLB flush needs that treatment.
@@ -36,6 +50,9 @@ void flush_tsb_kernel_range(unsigned lon
 {
 	unsigned long v;
 
+	if ((end - start) >> PAGE_SHIFT >= 2 * KERNEL_TSB_NENTRIES)
+		return flush_tsb_kernel_range_scan(start, end);
+
 	for (v = start; v < end; v += PAGE_SIZE) {
 		unsigned long hash = tsb_hash(v, PAGE_SHIFT,
 					      KERNEL_TSB_NENTRIES);
@@ -76,14 +93,15 @@ void flush_tsb_user(struct tlb_batch *tb
 
 	spin_lock_irqsave(&mm->context.lock, flags);
 
-	base = (unsigned long) mm->context.tsb_block[MM_TSB_BASE].tsb;
-	nentries = mm->context.tsb_block[MM_TSB_BASE].tsb_nentries;
-	if (tlb_type == cheetah_plus || tlb_type == hypervisor)
-		base = __pa(base);
-	__flush_tsb_one(tb, PAGE_SHIFT, base, nentries);
-
+	if (!tb->huge) {
+		base = (unsigned long) mm->context.tsb_block[MM_TSB_BASE].tsb;
+		nentries = mm->context.tsb_block[MM_TSB_BASE].tsb_nentries;
+		if (tlb_type == cheetah_plus || tlb_type == hypervisor)
+			base = __pa(base);
+		__flush_tsb_one(tb, PAGE_SHIFT, base, nentries);
+	}
 #if defined(CONFIG_HUGETLB_PAGE) || defined(CONFIG_TRANSPARENT_HUGEPAGE)
-	if (mm->context.tsb_block[MM_TSB_HUGE].tsb) {
+	if (tb->huge && mm->context.tsb_block[MM_TSB_HUGE].tsb) {
 		base = (unsigned long) mm->context.tsb_block[MM_TSB_HUGE].tsb;
 		nentries = mm->context.tsb_block[MM_TSB_HUGE].tsb_nentries;
 		if (tlb_type == cheetah_plus || tlb_type == hypervisor)
@@ -94,20 +112,21 @@ void flush_tsb_user(struct tlb_batch *tb
 	spin_unlock_irqrestore(&mm->context.lock, flags);
 }
 
-void flush_tsb_user_page(struct mm_struct *mm, unsigned long vaddr)
+void flush_tsb_user_page(struct mm_struct *mm, unsigned long vaddr, bool huge)
 {
 	unsigned long nentries, base, flags;
 
 	spin_lock_irqsave(&mm->context.lock, flags);
 
-	base = (unsigned long) mm->context.tsb_block[MM_TSB_BASE].tsb;
-	nentries = mm->context.tsb_block[MM_TSB_BASE].tsb_nentries;
-	if (tlb_type == cheetah_plus || tlb_type == hypervisor)
-		base = __pa(base);
-	__flush_tsb_one_entry(base, vaddr, PAGE_SHIFT, nentries);
-
+	if (!huge) {
+		base = (unsigned long) mm->context.tsb_block[MM_TSB_BASE].tsb;
+		nentries = mm->context.tsb_block[MM_TSB_BASE].tsb_nentries;
+		if (tlb_type == cheetah_plus || tlb_type == hypervisor)
+			base = __pa(base);
+		__flush_tsb_one_entry(base, vaddr, PAGE_SHIFT, nentries);
+	}
 #if defined(CONFIG_HUGETLB_PAGE) || defined(CONFIG_TRANSPARENT_HUGEPAGE)
-	if (mm->context.tsb_block[MM_TSB_HUGE].tsb) {
+	if (huge && mm->context.tsb_block[MM_TSB_HUGE].tsb) {
 		base = (unsigned long) mm->context.tsb_block[MM_TSB_HUGE].tsb;
 		nentries = mm->context.tsb_block[MM_TSB_HUGE].tsb_nentries;
 		if (tlb_type == cheetah_plus || tlb_type == hypervisor)
@@ -432,7 +451,8 @@ retry_tsb_alloc:
 		extern void copy_tsb(unsigned long old_tsb_base,
 				     unsigned long old_tsb_size,
 				     unsigned long new_tsb_base,
-				     unsigned long new_tsb_size);
+				     unsigned long new_tsb_size,
+				     unsigned long page_size_shift);
 		unsigned long old_tsb_base = (unsigned long) old_tsb;
 		unsigned long new_tsb_base = (unsigned long) new_tsb;
 
@@ -440,7 +460,9 @@ retry_tsb_alloc:
 			old_tsb_base = __pa(old_tsb_base);
 			new_tsb_base = __pa(new_tsb_base);
 		}
-		copy_tsb(old_tsb_base, old_size, new_tsb_base, new_size);
+		copy_tsb(old_tsb_base, old_size, new_tsb_base, new_size,
+			tsb_index == MM_TSB_BASE ?
+			PAGE_SHIFT : REAL_HPAGE_SHIFT);
 	}
 
 	mm->context.tsb_block[tsb_index].tsb = new_tsb;
@@ -468,7 +490,7 @@ retry_tsb_alloc:
 int init_new_context(struct task_struct *tsk, struct mm_struct *mm)
 {
 #if defined(CONFIG_HUGETLB_PAGE) || defined(CONFIG_TRANSPARENT_HUGEPAGE)
-	unsigned long huge_pte_count;
+	unsigned long total_huge_pte_count;
 #endif
 	unsigned int i;
 
@@ -477,12 +499,14 @@ int init_new_context(struct task_struct
 	mm->context.sparc64_ctx_val = 0UL;
 
 #if defined(CONFIG_HUGETLB_PAGE) || defined(CONFIG_TRANSPARENT_HUGEPAGE)
-	/* We reset it to zero because the fork() page copying
+	/* We reset them to zero because the fork() page copying
 	 * will re-increment the counters as the parent PTEs are
 	 * copied into the child address space.
 	 */
-	huge_pte_count = mm->context.huge_pte_count;
-	mm->context.huge_pte_count = 0;
+	total_huge_pte_count = mm->context.hugetlb_pte_count +
+			 mm->context.thp_pte_count;
+	mm->context.hugetlb_pte_count = 0;
+	mm->context.thp_pte_count = 0;
 #endif
 
 	/* copy_mm() copies over the parent's mm_struct before calling
@@ -498,8 +522,8 @@ int init_new_context(struct task_struct
 	tsb_grow(mm, MM_TSB_BASE, get_mm_rss(mm));
 
 #if defined(CONFIG_HUGETLB_PAGE) || defined(CONFIG_TRANSPARENT_HUGEPAGE)
-	if (unlikely(huge_pte_count))
-		tsb_grow(mm, MM_TSB_HUGE, huge_pte_count);
+	if (unlikely(total_huge_pte_count))
+		tsb_grow(mm, MM_TSB_HUGE, total_huge_pte_count);
 #endif
 
 	if (unlikely(!mm->context.tsb_block[MM_TSB_BASE].tsb))
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/mm/ultra.S linux-libre-4.4.107-gnu/arch/sparc/mm/ultra.S
--- linux-libre-4.4-gnu/arch/sparc/mm/ultra.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sparc/mm/ultra.S	2017-12-20 04:05:01.000000000 -0500
@@ -30,7 +30,7 @@
 	.text
 	.align		32
 	.globl		__flush_tlb_mm
-__flush_tlb_mm:		/* 18 insns */
+__flush_tlb_mm:		/* 19 insns */
 	/* %o0=(ctx & TAG_CONTEXT_BITS), %o1=SECONDARY_CONTEXT */
 	ldxa		[%o1] ASI_DMMU, %g2
 	cmp		%g2, %o0
@@ -81,7 +81,7 @@ __flush_tlb_page:	/* 22 insns */
 
 	.align		32
 	.globl		__flush_tlb_pending
-__flush_tlb_pending:	/* 26 insns */
+__flush_tlb_pending:	/* 27 insns */
 	/* %o0 = context, %o1 = nr, %o2 = vaddrs[] */
 	rdpr		%pstate, %g7
 	sllx		%o1, 3, %o1
@@ -113,12 +113,14 @@ __flush_tlb_pending:	/* 26 insns */
 
 	.align		32
 	.globl		__flush_tlb_kernel_range
-__flush_tlb_kernel_range:	/* 16 insns */
+__flush_tlb_kernel_range:	/* 31 insns */
 	/* %o0=start, %o1=end */
 	cmp		%o0, %o1
 	be,pn		%xcc, 2f
+	 sub		%o1, %o0, %o3
+	srlx		%o3, 18, %o4
+	brnz,pn		%o4, __spitfire_flush_tlb_kernel_range_slow
 	 sethi		%hi(PAGE_SIZE), %o4
-	sub		%o1, %o0, %o3
 	sub		%o3, %o4, %o3
 	or		%o0, 0x20, %o0		! Nucleus
 1:	stxa		%g0, [%o0 + %o3] ASI_DMMU_DEMAP
@@ -131,6 +133,41 @@ __flush_tlb_kernel_range:	/* 16 insns */
 	retl
 	 nop
 	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+
+__spitfire_flush_tlb_kernel_range_slow:
+	mov		63 * 8, %o4
+1:	ldxa		[%o4] ASI_ITLB_DATA_ACCESS, %o3
+	andcc		%o3, 0x40, %g0			/* _PAGE_L_4U */
+	bne,pn		%xcc, 2f
+	 mov		TLB_TAG_ACCESS, %o3
+	stxa		%g0, [%o3] ASI_IMMU
+	stxa		%g0, [%o4] ASI_ITLB_DATA_ACCESS
+	membar		#Sync
+2:	ldxa		[%o4] ASI_DTLB_DATA_ACCESS, %o3
+	andcc		%o3, 0x40, %g0
+	bne,pn		%xcc, 2f
+	 mov		TLB_TAG_ACCESS, %o3
+	stxa		%g0, [%o3] ASI_DMMU
+	stxa		%g0, [%o4] ASI_DTLB_DATA_ACCESS
+	membar		#Sync
+2:	sub		%o4, 8, %o4
+	brgez,pt	%o4, 1b
+	 nop
+	retl
+	 nop
 
 __spitfire_flush_tlb_mm_slow:
 	rdpr		%pstate, %g1
@@ -285,6 +322,40 @@ __cheetah_flush_tlb_pending:	/* 27 insns
 	retl
 	 wrpr		%g7, 0x0, %pstate
 
+__cheetah_flush_tlb_kernel_range:	/* 31 insns */
+	/* %o0=start, %o1=end */
+	cmp		%o0, %o1
+	be,pn		%xcc, 2f
+	 sub		%o1, %o0, %o3
+	srlx		%o3, 18, %o4
+	brnz,pn		%o4, 3f
+	 sethi		%hi(PAGE_SIZE), %o4
+	sub		%o3, %o4, %o3
+	or		%o0, 0x20, %o0		! Nucleus
+1:	stxa		%g0, [%o0 + %o3] ASI_DMMU_DEMAP
+	stxa		%g0, [%o0 + %o3] ASI_IMMU_DEMAP
+	membar		#Sync
+	brnz,pt		%o3, 1b
+	 sub		%o3, %o4, %o3
+2:	sethi		%hi(KERNBASE), %o3
+	flush		%o3
+	retl
+	 nop
+3:	mov		0x80, %o4
+	stxa		%g0, [%o4] ASI_DMMU_DEMAP
+	membar		#Sync
+	stxa		%g0, [%o4] ASI_IMMU_DEMAP
+	membar		#Sync
+	retl
+	 nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+
 #ifdef DCACHE_ALIASING_POSSIBLE
 __cheetah_flush_dcache_page: /* 11 insns */
 	sethi		%hi(PAGE_OFFSET), %g1
@@ -309,19 +380,28 @@ __hypervisor_tlb_tl0_error:
 	ret
 	 restore
 
-__hypervisor_flush_tlb_mm: /* 10 insns */
+__hypervisor_flush_tlb_mm: /* 19 insns */
 	mov		%o0, %o2	/* ARG2: mmu context */
 	mov		0, %o0		/* ARG0: CPU lists unimplemented */
 	mov		0, %o1		/* ARG1: CPU lists unimplemented */
 	mov		HV_MMU_ALL, %o3	/* ARG3: flags */
 	mov		HV_FAST_MMU_DEMAP_CTX, %o5
 	ta		HV_FAST_TRAP
-	brnz,pn		%o0, __hypervisor_tlb_tl0_error
+	brnz,pn		%o0, 1f
 	 mov		HV_FAST_MMU_DEMAP_CTX, %o1
 	retl
 	 nop
+1:	sethi		%hi(__hypervisor_tlb_tl0_error), %o5
+	jmpl		%o5 + %lo(__hypervisor_tlb_tl0_error), %g0
+	 nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
 
-__hypervisor_flush_tlb_page: /* 11 insns */
+__hypervisor_flush_tlb_page: /* 22 insns */
 	/* %o0 = context, %o1 = vaddr */
 	mov		%o0, %g2
 	mov		%o1, %o0              /* ARG0: vaddr + IMMU-bit */
@@ -330,12 +410,23 @@ __hypervisor_flush_tlb_page: /* 11 insns
 	srlx		%o0, PAGE_SHIFT, %o0
 	sllx		%o0, PAGE_SHIFT, %o0
 	ta		HV_MMU_UNMAP_ADDR_TRAP
-	brnz,pn		%o0, __hypervisor_tlb_tl0_error
+	brnz,pn		%o0, 1f
 	 mov		HV_MMU_UNMAP_ADDR_TRAP, %o1
 	retl
 	 nop
+1:	sethi		%hi(__hypervisor_tlb_tl0_error), %o2
+	jmpl		%o2 + %lo(__hypervisor_tlb_tl0_error), %g0
+	 nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
 
-__hypervisor_flush_tlb_pending: /* 16 insns */
+__hypervisor_flush_tlb_pending: /* 27 insns */
 	/* %o0 = context, %o1 = nr, %o2 = vaddrs[] */
 	sllx		%o1, 3, %g1
 	mov		%o2, %g2
@@ -347,31 +438,57 @@ __hypervisor_flush_tlb_pending: /* 16 in
 	srlx		%o0, PAGE_SHIFT, %o0
 	sllx		%o0, PAGE_SHIFT, %o0
 	ta		HV_MMU_UNMAP_ADDR_TRAP
-	brnz,pn		%o0, __hypervisor_tlb_tl0_error
+	brnz,pn		%o0, 1f
 	 mov		HV_MMU_UNMAP_ADDR_TRAP, %o1
 	brnz,pt		%g1, 1b
 	 nop
 	retl
 	 nop
+1:	sethi		%hi(__hypervisor_tlb_tl0_error), %o2
+	jmpl		%o2 + %lo(__hypervisor_tlb_tl0_error), %g0
+	 nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
 
-__hypervisor_flush_tlb_kernel_range: /* 16 insns */
+__hypervisor_flush_tlb_kernel_range: /* 31 insns */
 	/* %o0=start, %o1=end */
 	cmp		%o0, %o1
 	be,pn		%xcc, 2f
-	 sethi		%hi(PAGE_SIZE), %g3
-	mov		%o0, %g1
-	sub		%o1, %g1, %g2
+	 sub		%o1, %o0, %g2
+	srlx		%g2, 18, %g3
+	brnz,pn		%g3, 4f
+	 mov		%o0, %g1
+	sethi		%hi(PAGE_SIZE), %g3
 	sub		%g2, %g3, %g2
 1:	add		%g1, %g2, %o0	/* ARG0: virtual address */
 	mov		0, %o1		/* ARG1: mmu context */
 	mov		HV_MMU_ALL, %o2	/* ARG2: flags */
 	ta		HV_MMU_UNMAP_ADDR_TRAP
-	brnz,pn		%o0, __hypervisor_tlb_tl0_error
+	brnz,pn		%o0, 3f
 	 mov		HV_MMU_UNMAP_ADDR_TRAP, %o1
 	brnz,pt		%g2, 1b
 	 sub		%g2, %g3, %g2
 2:	retl
 	 nop
+3:	sethi		%hi(__hypervisor_tlb_tl0_error), %o2
+	jmpl		%o2 + %lo(__hypervisor_tlb_tl0_error), %g0
+	 nop
+4:	mov		0, %o0		/* ARG0: CPU lists unimplemented */
+	mov		0, %o1		/* ARG1: CPU lists unimplemented */
+	mov		0, %o2		/* ARG2: mmu context == nucleus */
+	mov		HV_MMU_ALL, %o3	/* ARG3: flags */
+	mov		HV_FAST_MMU_DEMAP_CTX, %o5
+	ta		HV_FAST_TRAP
+	brnz,pn		%o0, 3b
+	 mov		HV_FAST_MMU_DEMAP_CTX, %o1
+	retl
+	 nop
 
 #ifdef DCACHE_ALIASING_POSSIBLE
 	/* XXX Niagara and friends have an 8K cache, so no aliasing is
@@ -394,43 +511,6 @@ tlb_patch_one:
 	retl
 	 nop
 
-	.globl		cheetah_patch_cachetlbops
-cheetah_patch_cachetlbops:
-	save		%sp, -128, %sp
-
-	sethi		%hi(__flush_tlb_mm), %o0
-	or		%o0, %lo(__flush_tlb_mm), %o0
-	sethi		%hi(__cheetah_flush_tlb_mm), %o1
-	or		%o1, %lo(__cheetah_flush_tlb_mm), %o1
-	call		tlb_patch_one
-	 mov		19, %o2
-
-	sethi		%hi(__flush_tlb_page), %o0
-	or		%o0, %lo(__flush_tlb_page), %o0
-	sethi		%hi(__cheetah_flush_tlb_page), %o1
-	or		%o1, %lo(__cheetah_flush_tlb_page), %o1
-	call		tlb_patch_one
-	 mov		22, %o2
-
-	sethi		%hi(__flush_tlb_pending), %o0
-	or		%o0, %lo(__flush_tlb_pending), %o0
-	sethi		%hi(__cheetah_flush_tlb_pending), %o1
-	or		%o1, %lo(__cheetah_flush_tlb_pending), %o1
-	call		tlb_patch_one
-	 mov		27, %o2
-
-#ifdef DCACHE_ALIASING_POSSIBLE
-	sethi		%hi(__flush_dcache_page), %o0
-	or		%o0, %lo(__flush_dcache_page), %o0
-	sethi		%hi(__cheetah_flush_dcache_page), %o1
-	or		%o1, %lo(__cheetah_flush_dcache_page), %o1
-	call		tlb_patch_one
-	 mov		11, %o2
-#endif /* DCACHE_ALIASING_POSSIBLE */
-
-	ret
-	 restore
-
 #ifdef CONFIG_SMP
 	/* These are all called by the slaves of a cross call, at
 	 * trap level 1, with interrupts fully disabled.
@@ -447,7 +527,7 @@ cheetah_patch_cachetlbops:
 	 */
 	.align		32
 	.globl		xcall_flush_tlb_mm
-xcall_flush_tlb_mm:	/* 21 insns */
+xcall_flush_tlb_mm:	/* 24 insns */
 	mov		PRIMARY_CONTEXT, %g2
 	ldxa		[%g2] ASI_DMMU, %g3
 	srlx		%g3, CTX_PGSZ1_NUC_SHIFT, %g4
@@ -469,9 +549,12 @@ xcall_flush_tlb_mm:	/* 21 insns */
 	nop
 	nop
 	nop
+	nop
+	nop
+	nop
 
 	.globl		xcall_flush_tlb_page
-xcall_flush_tlb_page:	/* 17 insns */
+xcall_flush_tlb_page:	/* 20 insns */
 	/* %g5=context, %g1=vaddr */
 	mov		PRIMARY_CONTEXT, %g4
 	ldxa		[%g4] ASI_DMMU, %g2
@@ -490,15 +573,20 @@ xcall_flush_tlb_page:	/* 17 insns */
 	retry
 	nop
 	nop
+	nop
+	nop
+	nop
 
 	.globl		xcall_flush_tlb_kernel_range
-xcall_flush_tlb_kernel_range:	/* 25 insns */
+xcall_flush_tlb_kernel_range:	/* 44 insns */
 	sethi		%hi(PAGE_SIZE - 1), %g2
 	or		%g2, %lo(PAGE_SIZE - 1), %g2
 	andn		%g1, %g2, %g1
 	andn		%g7, %g2, %g7
 	sub		%g7, %g1, %g3
-	add		%g2, 1, %g2
+	srlx		%g3, 18, %g2
+	brnz,pn		%g2, 2f
+	 add		%g2, 1, %g2
 	sub		%g3, %g2, %g3
 	or		%g1, 0x20, %g1		! Nucleus
 1:	stxa		%g0, [%g1 + %g3] ASI_DMMU_DEMAP
@@ -507,8 +595,25 @@ xcall_flush_tlb_kernel_range:	/* 25 insn
 	brnz,pt		%g3, 1b
 	 sub		%g3, %g2, %g3
 	retry
-	nop
-	nop
+2:	mov		63 * 8, %g1
+1:	ldxa		[%g1] ASI_ITLB_DATA_ACCESS, %g2
+	andcc		%g2, 0x40, %g0			/* _PAGE_L_4U */
+	bne,pn		%xcc, 2f
+	 mov		TLB_TAG_ACCESS, %g2
+	stxa		%g0, [%g2] ASI_IMMU
+	stxa		%g0, [%g1] ASI_ITLB_DATA_ACCESS
+	membar		#Sync
+2:	ldxa		[%g1] ASI_DTLB_DATA_ACCESS, %g2
+	andcc		%g2, 0x40, %g0
+	bne,pn		%xcc, 2f
+	 mov		TLB_TAG_ACCESS, %g2
+	stxa		%g0, [%g2] ASI_DMMU
+	stxa		%g0, [%g1] ASI_DTLB_DATA_ACCESS
+	membar		#Sync
+2:	sub		%g1, 8, %g1
+	brgez,pt	%g1, 1b
+	 nop
+	retry
 	nop
 	nop
 	nop
@@ -637,6 +742,52 @@ xcall_fetch_glob_pmu_n4:
 
 	retry
 
+__cheetah_xcall_flush_tlb_kernel_range:	/* 44 insns */
+	sethi		%hi(PAGE_SIZE - 1), %g2
+	or		%g2, %lo(PAGE_SIZE - 1), %g2
+	andn		%g1, %g2, %g1
+	andn		%g7, %g2, %g7
+	sub		%g7, %g1, %g3
+	srlx		%g3, 18, %g2
+	brnz,pn		%g2, 2f
+	 add		%g2, 1, %g2
+	sub		%g3, %g2, %g3
+	or		%g1, 0x20, %g1		! Nucleus
+1:	stxa		%g0, [%g1 + %g3] ASI_DMMU_DEMAP
+	stxa		%g0, [%g1 + %g3] ASI_IMMU_DEMAP
+	membar		#Sync
+	brnz,pt		%g3, 1b
+	 sub		%g3, %g2, %g3
+	retry
+2:	mov		0x80, %g2
+	stxa		%g0, [%g2] ASI_DMMU_DEMAP
+	membar		#Sync
+	stxa		%g0, [%g2] ASI_IMMU_DEMAP
+	membar		#Sync
+	retry
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+
 #ifdef DCACHE_ALIASING_POSSIBLE
 	.align		32
 	.globl		xcall_flush_dcache_page_cheetah
@@ -700,7 +851,7 @@ __hypervisor_tlb_xcall_error:
 	ba,a,pt	%xcc, rtrap
 
 	.globl		__hypervisor_xcall_flush_tlb_mm
-__hypervisor_xcall_flush_tlb_mm: /* 21 insns */
+__hypervisor_xcall_flush_tlb_mm: /* 24 insns */
 	/* %g5=ctx, g1,g2,g3,g4,g7=scratch, %g6=unusable */
 	mov		%o0, %g2
 	mov		%o1, %g3
@@ -714,7 +865,7 @@ __hypervisor_xcall_flush_tlb_mm: /* 21 i
 	mov		HV_FAST_MMU_DEMAP_CTX, %o5
 	ta		HV_FAST_TRAP
 	mov		HV_FAST_MMU_DEMAP_CTX, %g6
-	brnz,pn		%o0, __hypervisor_tlb_xcall_error
+	brnz,pn		%o0, 1f
 	 mov		%o0, %g5
 	mov		%g2, %o0
 	mov		%g3, %o1
@@ -723,9 +874,12 @@ __hypervisor_xcall_flush_tlb_mm: /* 21 i
 	mov		%g7, %o5
 	membar		#Sync
 	retry
+1:	sethi		%hi(__hypervisor_tlb_xcall_error), %g4
+	jmpl		%g4 + %lo(__hypervisor_tlb_xcall_error), %g0
+	 nop
 
 	.globl		__hypervisor_xcall_flush_tlb_page
-__hypervisor_xcall_flush_tlb_page: /* 17 insns */
+__hypervisor_xcall_flush_tlb_page: /* 20 insns */
 	/* %g5=ctx, %g1=vaddr */
 	mov		%o0, %g2
 	mov		%o1, %g3
@@ -737,42 +891,64 @@ __hypervisor_xcall_flush_tlb_page: /* 17
 	sllx		%o0, PAGE_SHIFT, %o0
 	ta		HV_MMU_UNMAP_ADDR_TRAP
 	mov		HV_MMU_UNMAP_ADDR_TRAP, %g6
-	brnz,a,pn	%o0, __hypervisor_tlb_xcall_error
+	brnz,a,pn	%o0, 1f
 	 mov		%o0, %g5
 	mov		%g2, %o0
 	mov		%g3, %o1
 	mov		%g4, %o2
 	membar		#Sync
 	retry
+1:	sethi		%hi(__hypervisor_tlb_xcall_error), %g4
+	jmpl		%g4 + %lo(__hypervisor_tlb_xcall_error), %g0
+	 nop
 
 	.globl		__hypervisor_xcall_flush_tlb_kernel_range
-__hypervisor_xcall_flush_tlb_kernel_range: /* 25 insns */
+__hypervisor_xcall_flush_tlb_kernel_range: /* 44 insns */
 	/* %g1=start, %g7=end, g2,g3,g4,g5,g6=scratch */
 	sethi		%hi(PAGE_SIZE - 1), %g2
 	or		%g2, %lo(PAGE_SIZE - 1), %g2
 	andn		%g1, %g2, %g1
 	andn		%g7, %g2, %g7
 	sub		%g7, %g1, %g3
+	srlx		%g3, 18, %g7
 	add		%g2, 1, %g2
 	sub		%g3, %g2, %g3
 	mov		%o0, %g2
 	mov		%o1, %g4
-	mov		%o2, %g7
+	brnz,pn		%g7, 2f
+	 mov		%o2, %g7
 1:	add		%g1, %g3, %o0	/* ARG0: virtual address */
 	mov		0, %o1		/* ARG1: mmu context */
 	mov		HV_MMU_ALL, %o2	/* ARG2: flags */
 	ta		HV_MMU_UNMAP_ADDR_TRAP
 	mov		HV_MMU_UNMAP_ADDR_TRAP, %g6
-	brnz,pn		%o0, __hypervisor_tlb_xcall_error
+	brnz,pn		%o0, 1f
 	 mov		%o0, %g5
 	sethi		%hi(PAGE_SIZE), %o2
 	brnz,pt		%g3, 1b
 	 sub		%g3, %o2, %g3
-	mov		%g2, %o0
+5:	mov		%g2, %o0
 	mov		%g4, %o1
 	mov		%g7, %o2
 	membar		#Sync
 	retry
+1:	sethi		%hi(__hypervisor_tlb_xcall_error), %g4
+	jmpl		%g4 + %lo(__hypervisor_tlb_xcall_error), %g0
+	 nop
+2:	mov		%o3, %g1
+	mov		%o5, %g3
+	mov		0, %o0		/* ARG0: CPU lists unimplemented */
+	mov		0, %o1		/* ARG1: CPU lists unimplemented */
+	mov		0, %o2		/* ARG2: mmu context == nucleus */
+	mov		HV_MMU_ALL, %o3	/* ARG3: flags */
+	mov		HV_FAST_MMU_DEMAP_CTX, %o5
+	ta		HV_FAST_TRAP
+	mov		%g1, %o3
+	brz,pt		%o0, 5b
+	 mov		%g3, %o5
+	mov		HV_FAST_MMU_DEMAP_CTX, %g6
+	ba,pt		%xcc, 1b
+	 clr		%g5
 
 	/* These just get rescheduled to PIL vectors. */
 	.globl		xcall_call_function
@@ -795,11 +971,6 @@ xcall_capture:
 	wr		%g0, (1 << PIL_SMP_CAPTURE), %set_softint
 	retry
 
-	.globl		xcall_new_mmu_context_version
-xcall_new_mmu_context_version:
-	wr		%g0, (1 << PIL_SMP_CTX_NEW_VERSION), %set_softint
-	retry
-
 #ifdef CONFIG_KGDB
 	.globl		xcall_kgdb_capture
 xcall_kgdb_capture:
@@ -809,6 +980,58 @@ xcall_kgdb_capture:
 
 #endif /* CONFIG_SMP */
 
+	.globl		cheetah_patch_cachetlbops
+cheetah_patch_cachetlbops:
+	save		%sp, -128, %sp
+
+	sethi		%hi(__flush_tlb_mm), %o0
+	or		%o0, %lo(__flush_tlb_mm), %o0
+	sethi		%hi(__cheetah_flush_tlb_mm), %o1
+	or		%o1, %lo(__cheetah_flush_tlb_mm), %o1
+	call		tlb_patch_one
+	 mov		19, %o2
+
+	sethi		%hi(__flush_tlb_page), %o0
+	or		%o0, %lo(__flush_tlb_page), %o0
+	sethi		%hi(__cheetah_flush_tlb_page), %o1
+	or		%o1, %lo(__cheetah_flush_tlb_page), %o1
+	call		tlb_patch_one
+	 mov		22, %o2
+
+	sethi		%hi(__flush_tlb_pending), %o0
+	or		%o0, %lo(__flush_tlb_pending), %o0
+	sethi		%hi(__cheetah_flush_tlb_pending), %o1
+	or		%o1, %lo(__cheetah_flush_tlb_pending), %o1
+	call		tlb_patch_one
+	 mov		27, %o2
+
+	sethi		%hi(__flush_tlb_kernel_range), %o0
+	or		%o0, %lo(__flush_tlb_kernel_range), %o0
+	sethi		%hi(__cheetah_flush_tlb_kernel_range), %o1
+	or		%o1, %lo(__cheetah_flush_tlb_kernel_range), %o1
+	call		tlb_patch_one
+	 mov		31, %o2
+
+#ifdef DCACHE_ALIASING_POSSIBLE
+	sethi		%hi(__flush_dcache_page), %o0
+	or		%o0, %lo(__flush_dcache_page), %o0
+	sethi		%hi(__cheetah_flush_dcache_page), %o1
+	or		%o1, %lo(__cheetah_flush_dcache_page), %o1
+	call		tlb_patch_one
+	 mov		11, %o2
+#endif /* DCACHE_ALIASING_POSSIBLE */
+
+#ifdef CONFIG_SMP
+	sethi		%hi(xcall_flush_tlb_kernel_range), %o0
+	or		%o0, %lo(xcall_flush_tlb_kernel_range), %o0
+	sethi		%hi(__cheetah_xcall_flush_tlb_kernel_range), %o1
+	or		%o1, %lo(__cheetah_xcall_flush_tlb_kernel_range), %o1
+	call		tlb_patch_one
+	 mov		44, %o2
+#endif /* CONFIG_SMP */
+
+	ret
+	 restore
 
 	.globl		hypervisor_patch_cachetlbops
 hypervisor_patch_cachetlbops:
@@ -819,28 +1042,28 @@ hypervisor_patch_cachetlbops:
 	sethi		%hi(__hypervisor_flush_tlb_mm), %o1
 	or		%o1, %lo(__hypervisor_flush_tlb_mm), %o1
 	call		tlb_patch_one
-	 mov		10, %o2
+	 mov		19, %o2
 
 	sethi		%hi(__flush_tlb_page), %o0
 	or		%o0, %lo(__flush_tlb_page), %o0
 	sethi		%hi(__hypervisor_flush_tlb_page), %o1
 	or		%o1, %lo(__hypervisor_flush_tlb_page), %o1
 	call		tlb_patch_one
-	 mov		11, %o2
+	 mov		22, %o2
 
 	sethi		%hi(__flush_tlb_pending), %o0
 	or		%o0, %lo(__flush_tlb_pending), %o0
 	sethi		%hi(__hypervisor_flush_tlb_pending), %o1
 	or		%o1, %lo(__hypervisor_flush_tlb_pending), %o1
 	call		tlb_patch_one
-	 mov		16, %o2
+	 mov		27, %o2
 
 	sethi		%hi(__flush_tlb_kernel_range), %o0
 	or		%o0, %lo(__flush_tlb_kernel_range), %o0
 	sethi		%hi(__hypervisor_flush_tlb_kernel_range), %o1
 	or		%o1, %lo(__hypervisor_flush_tlb_kernel_range), %o1
 	call		tlb_patch_one
-	 mov		16, %o2
+	 mov		31, %o2
 
 #ifdef DCACHE_ALIASING_POSSIBLE
 	sethi		%hi(__flush_dcache_page), %o0
@@ -857,21 +1080,21 @@ hypervisor_patch_cachetlbops:
 	sethi		%hi(__hypervisor_xcall_flush_tlb_mm), %o1
 	or		%o1, %lo(__hypervisor_xcall_flush_tlb_mm), %o1
 	call		tlb_patch_one
-	 mov		21, %o2
+	 mov		24, %o2
 
 	sethi		%hi(xcall_flush_tlb_page), %o0
 	or		%o0, %lo(xcall_flush_tlb_page), %o0
 	sethi		%hi(__hypervisor_xcall_flush_tlb_page), %o1
 	or		%o1, %lo(__hypervisor_xcall_flush_tlb_page), %o1
 	call		tlb_patch_one
-	 mov		17, %o2
+	 mov		20, %o2
 
 	sethi		%hi(xcall_flush_tlb_kernel_range), %o0
 	or		%o0, %lo(xcall_flush_tlb_kernel_range), %o0
 	sethi		%hi(__hypervisor_xcall_flush_tlb_kernel_range), %o1
 	or		%o1, %lo(__hypervisor_xcall_flush_tlb_kernel_range), %o1
 	call		tlb_patch_one
-	 mov		25, %o2
+	 mov		44, %o2
 #endif /* CONFIG_SMP */
 
 	ret
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/sparc/power/hibernate.c linux-libre-4.4.107-gnu/arch/sparc/power/hibernate.c
--- linux-libre-4.4-gnu/arch/sparc/power/hibernate.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/sparc/power/hibernate.c	2017-12-20 04:05:01.000000000 -0500
@@ -35,6 +35,5 @@ void restore_processor_state(void)
 {
 	struct mm_struct *mm = current->active_mm;
 
-	load_secondary_context(mm);
-	tsb_context_switch(mm);
+	tsb_context_switch_ctx(mm, CTX_HWBITS(mm->context));
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/tile/include/asm/elf.h linux-libre-4.4.107-gnu/arch/tile/include/asm/elf.h
--- linux-libre-4.4-gnu/arch/tile/include/asm/elf.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/tile/include/asm/elf.h	2017-12-20 04:05:01.000000000 -0500
@@ -129,6 +129,7 @@ extern int dump_task_regs(struct task_st
 struct linux_binprm;
 extern int arch_setup_additional_pages(struct linux_binprm *bprm,
 				       int executable_stack);
+/* update AT_VECTOR_SIZE_ARCH if the number of NEW_AUX_ENT entries changes */
 #define ARCH_DLINFO \
 do { \
 	NEW_AUX_ENT(AT_SYSINFO_EHDR, VDSO_BASE); \
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/tile/include/uapi/asm/auxvec.h linux-libre-4.4.107-gnu/arch/tile/include/uapi/asm/auxvec.h
--- linux-libre-4.4-gnu/arch/tile/include/uapi/asm/auxvec.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/tile/include/uapi/asm/auxvec.h	2017-12-20 04:05:01.000000000 -0500
@@ -18,4 +18,6 @@
 /* The vDSO location. */
 #define AT_SYSINFO_EHDR         33
 
+#define AT_VECTOR_SIZE_ARCH 1 /* entries in ARCH_DLINFO */
+
 #endif /* _ASM_TILE_AUXVEC_H */
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/tile/kernel/ptrace.c linux-libre-4.4.107-gnu/arch/tile/kernel/ptrace.c
--- linux-libre-4.4-gnu/arch/tile/kernel/ptrace.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/tile/kernel/ptrace.c	2017-12-20 04:05:01.000000000 -0500
@@ -111,7 +111,7 @@ static int tile_gpr_set(struct task_stru
 			  const void *kbuf, const void __user *ubuf)
 {
 	int ret;
-	struct pt_regs regs;
+	struct pt_regs regs = *task_pt_regs(target);
 
 	ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, &regs, 0,
 				 sizeof(regs));
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/tile/kernel/time.c linux-libre-4.4.107-gnu/arch/tile/kernel/time.c
--- linux-libre-4.4-gnu/arch/tile/kernel/time.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/tile/kernel/time.c	2017-12-20 04:05:01.000000000 -0500
@@ -218,8 +218,8 @@ void do_timer_interrupt(struct pt_regs *
  */
 unsigned long long sched_clock(void)
 {
-	return clocksource_cyc2ns(get_cycles(),
-				  sched_clock_mult, SCHED_CLOCK_SHIFT);
+	return mult_frac(get_cycles(),
+			 sched_clock_mult, 1ULL << SCHED_CLOCK_SHIFT);
 }
 
 int setup_profiling_timer(unsigned int multiplier)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/tile/mm/hugetlbpage.c linux-libre-4.4.107-gnu/arch/tile/mm/hugetlbpage.c
--- linux-libre-4.4-gnu/arch/tile/mm/hugetlbpage.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/tile/mm/hugetlbpage.c	2017-12-20 04:05:01.000000000 -0500
@@ -232,7 +232,7 @@ unsigned long hugetlb_get_unmapped_area(
 		addr = ALIGN(addr, huge_page_size(h));
 		vma = find_vma(mm, addr);
 		if (TASK_SIZE - len >= addr &&
-		    (!vma || addr + len <= vma->vm_start))
+		    (!vma || addr + len <= vm_start_gap(vma)))
 			return addr;
 	}
 	if (current->mm->get_unmapped_area == arch_get_unmapped_area)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/um/drivers/mconsole_kern.c linux-libre-4.4.107-gnu/arch/um/drivers/mconsole_kern.c
--- linux-libre-4.4-gnu/arch/um/drivers/mconsole_kern.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/um/drivers/mconsole_kern.c	2017-12-20 04:05:01.000000000 -0500
@@ -133,7 +133,7 @@ void mconsole_proc(struct mc_request *re
 	ptr += strlen("proc");
 	ptr = skip_spaces(ptr);
 
-	file = file_open_root(mnt->mnt_root, mnt, ptr, O_RDONLY);
+	file = file_open_root(mnt->mnt_root, mnt, ptr, O_RDONLY, 0);
 	if (IS_ERR(file)) {
 		mconsole_reply(req, "Failed to open file", 1, 0);
 		printk(KERN_ERR "open /proc/%s: %ld\n", ptr, PTR_ERR(file));
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/um/include/asm/common.lds.S linux-libre-4.4.107-gnu/arch/um/include/asm/common.lds.S
--- linux-libre-4.4-gnu/arch/um/include/asm/common.lds.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/um/include/asm/common.lds.S	2017-12-20 04:05:01.000000000 -0500
@@ -81,7 +81,7 @@
   .altinstr_replacement : { *(.altinstr_replacement) }
   /* .exit.text is discard at runtime, not link time, to deal with references
      from .altinstructions and .eh_frame */
-  .exit.text : { *(.exit.text) }
+  .exit.text : { EXIT_TEXT }
   .exit.data : { *(.exit.data) }
 
   .preinit_array : {
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/um/os-Linux/start_up.c linux-libre-4.4.107-gnu/arch/um/os-Linux/start_up.c
--- linux-libre-4.4-gnu/arch/um/os-Linux/start_up.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/um/os-Linux/start_up.c	2017-12-20 04:05:01.000000000 -0500
@@ -94,6 +94,8 @@ static int start_ptraced_child(void)
 {
 	int pid, n, status;
 
+	fflush(stdout);
+
 	pid = fork();
 	if (pid == 0)
 		ptrace_child();
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/boot/boot.h linux-libre-4.4.107-gnu/arch/x86/boot/boot.h
--- linux-libre-4.4-gnu/arch/x86/boot/boot.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/boot/boot.h	2017-12-20 04:05:01.000000000 -0500
@@ -16,7 +16,7 @@
 #ifndef BOOT_BOOT_H
 #define BOOT_BOOT_H
 
-#define STACK_SIZE	512	/* Minimum number of bytes for stack */
+#define STACK_SIZE	1024	/* Minimum number of bytes for stack */
 
 #ifndef __ASSEMBLY__
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/boot/compressed/head_32.S linux-libre-4.4.107-gnu/arch/x86/boot/compressed/head_32.S
--- linux-libre-4.4-gnu/arch/x86/boot/compressed/head_32.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/boot/compressed/head_32.S	2017-12-20 04:05:01.000000000 -0500
@@ -31,6 +31,34 @@
 #include <asm/asm-offsets.h>
 #include <asm/bootparam.h>
 
+/*
+ * The 32-bit x86 assembler in binutils 2.26 will generate R_386_GOT32X
+ * relocation to get the symbol address in PIC.  When the compressed x86
+ * kernel isn't built as PIC, the linker optimizes R_386_GOT32X
+ * relocations to their fixed symbol addresses.  However, when the
+ * compressed x86 kernel is loaded at a different address, it leads
+ * to the following load failure:
+ *
+ *   Failed to allocate space for phdrs
+ *
+ * during the decompression stage.
+ *
+ * If the compressed x86 kernel is relocatable at run-time, it should be
+ * compiled with -fPIE, instead of -fPIC, if possible and should be built as
+ * Position Independent Executable (PIE) so that linker won't optimize
+ * R_386_GOT32X relocation to its fixed symbol address.  Older
+ * linkers generate R_386_32 relocations against locally defined symbols,
+ * _bss, _ebss, _got and _egot, in PIE.  It isn't wrong, just less
+ * optimal than R_386_RELATIVE.  But the x86 kernel fails to properly handle
+ * R_386_32 relocations when relocating the kernel.  To generate
+ * R_386_RELATIVE relocations, we mark _bss, _ebss, _got and _egot as
+ * hidden:
+ */
+	.hidden _bss
+	.hidden _ebss
+	.hidden _got
+	.hidden _egot
+
 	__HEAD
 ENTRY(startup_32)
 #ifdef CONFIG_EFI_STUB
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/boot/compressed/head_64.S linux-libre-4.4.107-gnu/arch/x86/boot/compressed/head_64.S
--- linux-libre-4.4-gnu/arch/x86/boot/compressed/head_64.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/boot/compressed/head_64.S	2017-12-20 04:05:01.000000000 -0500
@@ -33,6 +33,14 @@
 #include <asm/asm-offsets.h>
 #include <asm/bootparam.h>
 
+/*
+ * Locally defined symbols should be marked hidden:
+ */
+	.hidden _bss
+	.hidden _ebss
+	.hidden _got
+	.hidden _egot
+
 	__HEAD
 	.code32
 ENTRY(startup_32)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/boot/compressed/Makefile linux-libre-4.4.107-gnu/arch/x86/boot/compressed/Makefile
--- linux-libre-4.4-gnu/arch/x86/boot/compressed/Makefile	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/boot/compressed/Makefile	2017-12-20 04:05:01.000000000 -0500
@@ -22,7 +22,7 @@ targets := vmlinux vmlinux.bin vmlinux.b
 	vmlinux.bin.xz vmlinux.bin.lzo vmlinux.bin.lz4
 
 KBUILD_CFLAGS := -m$(BITS) -D__KERNEL__ $(LINUX_INCLUDE) -O2
-KBUILD_CFLAGS += -fno-strict-aliasing -fPIC
+KBUILD_CFLAGS += -fno-strict-aliasing $(call cc-option, -fPIE, -fPIC)
 KBUILD_CFLAGS += -DDISABLE_BRANCH_PROFILING
 cflags-$(CONFIG_X86_32) := -march=i386
 cflags-$(CONFIG_X86_64) := -mcmodel=small
@@ -35,6 +35,18 @@ KBUILD_AFLAGS  := $(KBUILD_CFLAGS) -D__A
 GCOV_PROFILE := n
 
 LDFLAGS := -m elf_$(UTS_MACHINE)
+ifeq ($(CONFIG_RELOCATABLE),y)
+# If kernel is relocatable, build compressed kernel as PIE.
+ifeq ($(CONFIG_X86_32),y)
+LDFLAGS += $(call ld-option, -pie) $(call ld-option, --no-dynamic-linker)
+else
+# To build 64-bit compressed kernel as PIE, we disable relocation
+# overflow check to avoid relocation overflow error with a new linker
+# command-line option, -z noreloc-overflow.
+LDFLAGS += $(shell $(LD) --help 2>&1 | grep -q "\-z noreloc-overflow" \
+	&& echo "-z noreloc-overflow -pie --no-dynamic-linker")
+endif
+endif
 LDFLAGS_vmlinux := -T
 
 hostprogs-y	:= mkpiggy
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/boot/Makefile linux-libre-4.4.107-gnu/arch/x86/boot/Makefile
--- linux-libre-4.4-gnu/arch/x86/boot/Makefile	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/boot/Makefile	2017-12-20 04:05:01.000000000 -0500
@@ -162,6 +162,9 @@ isoimage: $(obj)/bzImage
 	for i in lib lib64 share end ; do \
 		if [ -f /usr/$$i/syslinux/isolinux.bin ] ; then \
 			cp /usr/$$i/syslinux/isolinux.bin $(obj)/isoimage ; \
+			if [ -f /usr/$$i/syslinux/ldlinux.c32 ]; then \
+				cp /usr/$$i/syslinux/ldlinux.c32 $(obj)/isoimage ; \
+			fi ; \
 			break ; \
 		fi ; \
 		if [ $$i = end ] ; then exit 1 ; fi ; \
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/boot/string.c linux-libre-4.4.107-gnu/arch/x86/boot/string.c
--- linux-libre-4.4-gnu/arch/x86/boot/string.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/boot/string.c	2017-12-20 04:05:01.000000000 -0500
@@ -14,6 +14,7 @@
 
 #include <linux/types.h>
 #include "ctype.h"
+#include "string.h"
 
 int memcmp(const void *s1, const void *s2, size_t len)
 {
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/boot/string.h linux-libre-4.4.107-gnu/arch/x86/boot/string.h
--- linux-libre-4.4-gnu/arch/x86/boot/string.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/boot/string.h	2017-12-20 04:05:01.000000000 -0500
@@ -18,4 +18,13 @@ int memcmp(const void *s1, const void *s
 #define memset(d,c,l) __builtin_memset(d,c,l)
 #define memcmp	__builtin_memcmp
 
+extern int strcmp(const char *str1, const char *str2);
+extern int strncmp(const char *cs, const char *ct, size_t count);
+extern size_t strlen(const char *s);
+extern char *strstr(const char *s1, const char *s2);
+extern size_t strnlen(const char *s, size_t maxlen);
+extern unsigned int atou(const char *s);
+extern unsigned long long simple_strtoull(const char *cp, char **endp,
+					  unsigned int base);
+
 #endif /* BOOT_STRING_H */
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/configs/tiny.config linux-libre-4.4.107-gnu/arch/x86/configs/tiny.config
--- linux-libre-4.4-gnu/arch/x86/configs/tiny.config	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/configs/tiny.config	2017-12-20 04:05:01.000000000 -0500
@@ -1 +1,3 @@
 CONFIG_NOHIGHMEM=y
+# CONFIG_HIGHMEM4G is not set
+# CONFIG_HIGHMEM64G is not set
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/crypto/chacha20-ssse3-x86_64.S linux-libre-4.4.107-gnu/arch/x86/crypto/chacha20-ssse3-x86_64.S
--- linux-libre-4.4-gnu/arch/x86/crypto/chacha20-ssse3-x86_64.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/crypto/chacha20-ssse3-x86_64.S	2017-12-20 04:05:01.000000000 -0500
@@ -157,7 +157,9 @@ ENTRY(chacha20_4block_xor_ssse3)
 	# done with the slightly better performing SSSE3 byte shuffling,
 	# 7/12-bit word rotation uses traditional shift+OR.
 
-	sub		$0x40,%rsp
+	mov		%rsp,%r11
+	sub		$0x80,%rsp
+	and		$~63,%rsp
 
 	# x0..15[0-3] = s0..3[0..3]
 	movq		0x00(%rdi),%xmm1
@@ -620,6 +622,6 @@ ENTRY(chacha20_4block_xor_ssse3)
 	pxor		%xmm1,%xmm15
 	movdqu		%xmm15,0xf0(%rsi)
 
-	add		$0x40,%rsp
+	mov		%r11,%rsp
 	ret
 ENDPROC(chacha20_4block_xor_ssse3)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/crypto/ghash-clmulni-intel_glue.c linux-libre-4.4.107-gnu/arch/x86/crypto/ghash-clmulni-intel_glue.c
--- linux-libre-4.4-gnu/arch/x86/crypto/ghash-clmulni-intel_glue.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/crypto/ghash-clmulni-intel_glue.c	2017-12-20 04:05:01.000000000 -0500
@@ -219,6 +219,29 @@ static int ghash_async_final(struct ahas
 	}
 }
 
+static int ghash_async_import(struct ahash_request *req, const void *in)
+{
+	struct ahash_request *cryptd_req = ahash_request_ctx(req);
+	struct shash_desc *desc = cryptd_shash_desc(cryptd_req);
+	struct ghash_desc_ctx *dctx = shash_desc_ctx(desc);
+
+	ghash_async_init(req);
+	memcpy(dctx, in, sizeof(*dctx));
+	return 0;
+
+}
+
+static int ghash_async_export(struct ahash_request *req, void *out)
+{
+	struct ahash_request *cryptd_req = ahash_request_ctx(req);
+	struct shash_desc *desc = cryptd_shash_desc(cryptd_req);
+	struct ghash_desc_ctx *dctx = shash_desc_ctx(desc);
+
+	memcpy(out, dctx, sizeof(*dctx));
+	return 0;
+
+}
+
 static int ghash_async_digest(struct ahash_request *req)
 {
 	struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
@@ -288,8 +311,11 @@ static struct ahash_alg ghash_async_alg
 	.final		= ghash_async_final,
 	.setkey		= ghash_async_setkey,
 	.digest		= ghash_async_digest,
+	.export		= ghash_async_export,
+	.import		= ghash_async_import,
 	.halg = {
 		.digestsize	= GHASH_DIGEST_SIZE,
+		.statesize = sizeof(struct ghash_desc_ctx),
 		.base = {
 			.cra_name		= "ghash",
 			.cra_driver_name	= "ghash-clmulni",
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/crypto/salsa20_glue.c linux-libre-4.4.107-gnu/arch/x86/crypto/salsa20_glue.c
--- linux-libre-4.4-gnu/arch/x86/crypto/salsa20_glue.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/crypto/salsa20_glue.c	2017-12-20 04:05:01.000000000 -0500
@@ -59,13 +59,6 @@ static int encrypt(struct blkcipher_desc
 
 	salsa20_ivsetup(ctx, walk.iv);
 
-	if (likely(walk.nbytes == nbytes))
-	{
-		salsa20_encrypt_bytes(ctx, walk.src.virt.addr,
-				      walk.dst.virt.addr, nbytes);
-		return blkcipher_walk_done(desc, &walk, 0);
-	}
-
 	while (walk.nbytes >= 64) {
 		salsa20_encrypt_bytes(ctx, walk.src.virt.addr,
 				      walk.dst.virt.addr,
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/crypto/sha1_avx2_x86_64_asm.S linux-libre-4.4.107-gnu/arch/x86/crypto/sha1_avx2_x86_64_asm.S
--- linux-libre-4.4-gnu/arch/x86/crypto/sha1_avx2_x86_64_asm.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/crypto/sha1_avx2_x86_64_asm.S	2017-12-20 04:05:01.000000000 -0500
@@ -117,11 +117,10 @@
 	.set T1, REG_T1
 .endm
 
-#define K_BASE		%r8
 #define HASH_PTR	%r9
+#define BLOCKS_CTR	%r8
 #define BUFFER_PTR	%r10
 #define BUFFER_PTR2	%r13
-#define BUFFER_END	%r11
 
 #define PRECALC_BUF	%r14
 #define WK_BUF		%r15
@@ -205,14 +204,14 @@
 		 * blended AVX2 and ALU instruction scheduling
 		 * 1 vector iteration per 8 rounds
 		 */
-		vmovdqu ((i * 2) + PRECALC_OFFSET)(BUFFER_PTR), W_TMP
+		vmovdqu (i * 2)(BUFFER_PTR), W_TMP
 	.elseif ((i & 7) == 1)
-		vinsertf128 $1, (((i-1) * 2)+PRECALC_OFFSET)(BUFFER_PTR2),\
+		vinsertf128 $1, ((i-1) * 2)(BUFFER_PTR2),\
 			 WY_TMP, WY_TMP
 	.elseif ((i & 7) == 2)
 		vpshufb YMM_SHUFB_BSWAP, WY_TMP, WY
 	.elseif ((i & 7) == 4)
-		vpaddd  K_XMM(K_BASE), WY, WY_TMP
+		vpaddd  K_XMM + K_XMM_AR(%rip), WY, WY_TMP
 	.elseif ((i & 7) == 7)
 		vmovdqu  WY_TMP, PRECALC_WK(i&~7)
 
@@ -255,7 +254,7 @@
 		vpxor	WY, WY_TMP, WY_TMP
 	.elseif ((i & 7) == 7)
 		vpxor	WY_TMP2, WY_TMP, WY
-		vpaddd	K_XMM(K_BASE), WY, WY_TMP
+		vpaddd  K_XMM + K_XMM_AR(%rip), WY, WY_TMP
 		vmovdqu	WY_TMP, PRECALC_WK(i&~7)
 
 		PRECALC_ROTATE_WY
@@ -291,7 +290,7 @@
 		vpsrld	$30, WY, WY
 		vpor	WY, WY_TMP, WY
 	.elseif ((i & 7) == 7)
-		vpaddd	K_XMM(K_BASE), WY, WY_TMP
+		vpaddd  K_XMM + K_XMM_AR(%rip), WY, WY_TMP
 		vmovdqu	WY_TMP, PRECALC_WK(i&~7)
 
 		PRECALC_ROTATE_WY
@@ -446,6 +445,16 @@
 
 .endm
 
+/* Add constant only if (%2 > %3) condition met (uses RTA as temp)
+ * %1 + %2 >= %3 ? %4 : 0
+ */
+.macro ADD_IF_GE a, b, c, d
+	mov     \a, RTA
+	add     $\d, RTA
+	cmp     $\c, \b
+	cmovge  RTA, \a
+.endm
+
 /*
  * macro implements 80 rounds of SHA-1, for multiple blocks with s/w pipelining
  */
@@ -463,13 +472,16 @@
 	lea	(2*4*80+32)(%rsp), WK_BUF
 
 	# Precalc WK for first 2 blocks
-	PRECALC_OFFSET = 0
+	ADD_IF_GE BUFFER_PTR2, BLOCKS_CTR, 2, 64
 	.set i, 0
 	.rept    160
 		PRECALC i
 		.set i, i + 1
 	.endr
-	PRECALC_OFFSET = 128
+
+	/* Go to next block if needed */
+	ADD_IF_GE BUFFER_PTR, BLOCKS_CTR, 3, 128
+	ADD_IF_GE BUFFER_PTR2, BLOCKS_CTR, 4, 128
 	xchg	WK_BUF, PRECALC_BUF
 
 	.align 32
@@ -479,8 +491,8 @@ _loop:
 	 * we use K_BASE value as a signal of a last block,
 	 * it is set below by: cmovae BUFFER_PTR, K_BASE
 	 */
-	cmp	K_BASE, BUFFER_PTR
-	jne	_begin
+	test BLOCKS_CTR, BLOCKS_CTR
+	jnz _begin
 	.align 32
 	jmp	_end
 	.align 32
@@ -512,10 +524,10 @@ _loop0:
 		.set j, j+2
 	.endr
 
-	add	$(2*64), BUFFER_PTR       /* move to next odd-64-byte block */
-	cmp	BUFFER_END, BUFFER_PTR    /* is current block the last one? */
-	cmovae	K_BASE, BUFFER_PTR	/* signal the last iteration smartly */
-
+	/* Update Counter */
+	sub $1, BLOCKS_CTR
+	/* Move to the next block only if needed*/
+	ADD_IF_GE BUFFER_PTR, BLOCKS_CTR, 4, 128
 	/*
 	 * rounds
 	 * 60,62,64,66,68
@@ -532,8 +544,8 @@ _loop0:
 	UPDATE_HASH	12(HASH_PTR), D
 	UPDATE_HASH	16(HASH_PTR), E
 
-	cmp	K_BASE, BUFFER_PTR	/* is current block the last one? */
-	je	_loop
+	test	BLOCKS_CTR, BLOCKS_CTR
+	jz	_loop
 
 	mov	TB, B
 
@@ -575,10 +587,10 @@ _loop2:
 		.set j, j+2
 	.endr
 
-	add	$(2*64), BUFFER_PTR2      /* move to next even-64-byte block */
-
-	cmp	BUFFER_END, BUFFER_PTR2   /* is current block the last one */
-	cmovae	K_BASE, BUFFER_PTR       /* signal the last iteration smartly */
+	/* update counter */
+	sub     $1, BLOCKS_CTR
+	/* Move to the next block only if needed*/
+	ADD_IF_GE BUFFER_PTR2, BLOCKS_CTR, 4, 128
 
 	jmp	_loop3
 _loop3:
@@ -641,19 +653,12 @@ _loop3:
 
 	avx2_zeroupper
 
-	lea	K_XMM_AR(%rip), K_BASE
-
+	/* Setup initial values */
 	mov	CTX, HASH_PTR
 	mov	BUF, BUFFER_PTR
-	lea	64(BUF), BUFFER_PTR2
-
-	shl	$6, CNT			/* mul by 64 */
-	add	BUF, CNT
-	add	$64, CNT
-	mov	CNT, BUFFER_END
 
-	cmp	BUFFER_END, BUFFER_PTR2
-	cmovae	K_BASE, BUFFER_PTR2
+	mov	BUF, BUFFER_PTR2
+	mov	CNT, BLOCKS_CTR
 
 	xmm_mov	BSWAP_SHUFB_CTL(%rip), YMM_SHUFB_BSWAP
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/crypto/sha-mb/sha1_mb.c linux-libre-4.4.107-gnu/arch/x86/crypto/sha-mb/sha1_mb.c
--- linux-libre-4.4-gnu/arch/x86/crypto/sha-mb/sha1_mb.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/crypto/sha-mb/sha1_mb.c	2017-12-20 04:05:01.000000000 -0500
@@ -453,10 +453,10 @@ static int sha_complete_job(struct mcryp
 
 			req = cast_mcryptd_ctx_to_req(req_ctx);
 			if (irqs_disabled())
-				rctx->complete(&req->base, ret);
+				req_ctx->complete(&req->base, ret);
 			else {
 				local_bh_disable();
-				rctx->complete(&req->base, ret);
+				req_ctx->complete(&req->base, ret);
 				local_bh_enable();
 			}
 		}
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/crypto/sha-mb/sha1_mb_mgr_flush_avx2.S linux-libre-4.4.107-gnu/arch/x86/crypto/sha-mb/sha1_mb_mgr_flush_avx2.S
--- linux-libre-4.4-gnu/arch/x86/crypto/sha-mb/sha1_mb_mgr_flush_avx2.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/crypto/sha-mb/sha1_mb_mgr_flush_avx2.S	2017-12-20 04:05:01.000000000 -0500
@@ -174,8 +174,8 @@ LABEL skip_ %I
 .endr
 
 	# Find min length
-	vmovdqa _lens+0*16(state), %xmm0
-	vmovdqa _lens+1*16(state), %xmm1
+	vmovdqu _lens+0*16(state), %xmm0
+	vmovdqu _lens+1*16(state), %xmm1
 
 	vpminud %xmm1, %xmm0, %xmm2     # xmm2 has {D,C,B,A}
 	vpalignr $8, %xmm2, %xmm3, %xmm3   # xmm3 has {x,x,D,C}
@@ -195,8 +195,8 @@ LABEL skip_ %I
 	vpsubd  %xmm2, %xmm0, %xmm0
 	vpsubd  %xmm2, %xmm1, %xmm1
 
-	vmovdqa %xmm0, _lens+0*16(state)
-	vmovdqa %xmm1, _lens+1*16(state)
+	vmovdqu %xmm0, _lens+0*16(state)
+	vmovdqu %xmm1, _lens+1*16(state)
 
 	# "state" and "args" are the same address, arg1
 	# len is arg2
@@ -260,8 +260,8 @@ ENTRY(sha1_mb_mgr_get_comp_job_avx2)
 	jc      .return_null
 
 	# Find min length
-	vmovdqa _lens(state), %xmm0
-	vmovdqa _lens+1*16(state), %xmm1
+	vmovdqu _lens(state), %xmm0
+	vmovdqu _lens+1*16(state), %xmm1
 
 	vpminud %xmm1, %xmm0, %xmm2        # xmm2 has {D,C,B,A}
 	vpalignr $8, %xmm2, %xmm3, %xmm3   # xmm3 has {x,x,D,C}
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/entry/common.c linux-libre-4.4.107-gnu/arch/x86/entry/common.c
--- linux-libre-4.4-gnu/arch/x86/entry/common.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/entry/common.c	2017-12-20 04:05:01.000000000 -0500
@@ -268,6 +268,7 @@ static void exit_to_usermode_loop(struct
 /* Called with IRQs disabled. */
 __visible inline void prepare_exit_to_usermode(struct pt_regs *regs)
 {
+	struct thread_info *ti = pt_regs_to_thread_info(regs);
 	u32 cached_flags;
 
 	if (IS_ENABLED(CONFIG_PROVE_LOCKING) && WARN_ON(!irqs_disabled()))
@@ -275,12 +276,22 @@ __visible inline void prepare_exit_to_us
 
 	lockdep_sys_exit();
 
-	cached_flags =
-		READ_ONCE(pt_regs_to_thread_info(regs)->flags);
+	cached_flags = READ_ONCE(ti->flags);
 
 	if (unlikely(cached_flags & EXIT_TO_USERMODE_LOOP_FLAGS))
 		exit_to_usermode_loop(regs, cached_flags);
 
+#ifdef CONFIG_COMPAT
+	/*
+	 * Compat syscalls set TS_COMPAT.  Make sure we clear it before
+	 * returning to user mode.  We need to clear it *after* signal
+	 * handling, because syscall restart has a fixup for compat
+	 * syscalls.  The fixup is exercised by the ptrace_syscall_32
+	 * selftest.
+	 */
+	ti->status &= ~TS_COMPAT;
+#endif
+
 	user_enter();
 }
 
@@ -332,14 +343,6 @@ __visible inline void syscall_return_slo
 	if (unlikely(cached_flags & SYSCALL_EXIT_WORK_FLAGS))
 		syscall_slow_exit_work(regs, cached_flags);
 
-#ifdef CONFIG_COMPAT
-	/*
-	 * Compat syscalls set TS_COMPAT.  Make sure we clear it before
-	 * returning to user mode.
-	 */
-	ti->status &= ~TS_COMPAT;
-#endif
-
 	local_irq_disable();
 	prepare_exit_to_usermode(regs);
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/entry/entry_32.S linux-libre-4.4.107-gnu/arch/x86/entry/entry_32.S
--- linux-libre-4.4-gnu/arch/x86/entry/entry_32.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/entry/entry_32.S	2017-12-20 04:05:01.000000000 -0500
@@ -766,8 +766,8 @@ ftrace_graph_call:
 	jmp	ftrace_stub
 #endif
 
-.globl ftrace_stub
-ftrace_stub:
+/* This is weak to keep gas from relaxing the jumps */
+WEAK(ftrace_stub)
 	ret
 END(ftrace_caller)
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/entry/entry_64_compat.S linux-libre-4.4.107-gnu/arch/x86/entry/entry_64_compat.S
--- linux-libre-4.4-gnu/arch/x86/entry/entry_64_compat.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/entry/entry_64_compat.S	2017-12-20 04:05:01.000000000 -0500
@@ -267,6 +267,7 @@ ENTRY(entry_INT80_compat)
 	 * Interrupts are off on entry.
 	 */
 	PARAVIRT_ADJUST_EXCEPTION_FRAME
+	ASM_CLAC			/* Do this early to minimize exposure */
 	SWAPGS
 
 	/*
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/entry/entry_64.S linux-libre-4.4.107-gnu/arch/x86/entry/entry_64.S
--- linux-libre-4.4-gnu/arch/x86/entry/entry_64.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/entry/entry_64.S	2017-12-20 04:05:01.000000000 -0500
@@ -1190,6 +1190,8 @@ ENTRY(nmi)
 	 * other IST entries.
 	 */
 
+	ASM_CLAC
+
 	/* Use %rdx as our temp variable throughout */
 	pushq	%rdx
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/entry/syscalls/syscall_32.tbl linux-libre-4.4.107-gnu/arch/x86/entry/syscalls/syscall_32.tbl
--- linux-libre-4.4-gnu/arch/x86/entry/syscalls/syscall_32.tbl	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/entry/syscalls/syscall_32.tbl	2017-12-20 04:05:01.000000000 -0500
@@ -294,7 +294,7 @@
 # 285 sys_setaltroot
 286	i386	add_key			sys_add_key
 287	i386	request_key		sys_request_key
-288	i386	keyctl			sys_keyctl
+288	i386	keyctl			sys_keyctl			compat_sys_keyctl
 289	i386	ioprio_set		sys_ioprio_set
 290	i386	ioprio_get		sys_ioprio_get
 291	i386	inotify_init		sys_inotify_init
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/entry/vdso/vdso32-setup.c linux-libre-4.4.107-gnu/arch/x86/entry/vdso/vdso32-setup.c
--- linux-libre-4.4-gnu/arch/x86/entry/vdso/vdso32-setup.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/entry/vdso/vdso32-setup.c	2017-12-20 04:05:01.000000000 -0500
@@ -31,8 +31,10 @@ static int __init vdso32_setup(char *s)
 {
 	vdso32_enabled = simple_strtoul(s, NULL, 0);
 
-	if (vdso32_enabled > 1)
+	if (vdso32_enabled > 1) {
 		pr_warn("vdso32 values other than 0 and 1 are no longer allowed; vdso disabled\n");
+		vdso32_enabled = 0;
+	}
 
 	return 1;
 }
@@ -63,13 +65,18 @@ subsys_initcall(sysenter_setup);
 /* Register vsyscall32 into the ABI table */
 #include <linux/sysctl.h>
 
+static const int zero;
+static const int one = 1;
+
 static struct ctl_table abi_table2[] = {
 	{
 		.procname	= "vsyscall32",
 		.data		= &vdso32_enabled,
 		.maxlen		= sizeof(int),
 		.mode		= 0644,
-		.proc_handler	= proc_dointvec
+		.proc_handler	= proc_dointvec_minmax,
+		.extra1		= (int *)&zero,
+		.extra2		= (int *)&one,
 	},
 	{}
 };
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/include/asm/alternative-asm.h linux-libre-4.4.107-gnu/arch/x86/include/asm/alternative-asm.h
--- linux-libre-4.4-gnu/arch/x86/include/asm/alternative-asm.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/include/asm/alternative-asm.h	2017-12-20 04:05:01.000000000 -0500
@@ -62,8 +62,10 @@
 #define new_len2		145f-144f
 
 /*
- * max without conditionals. Idea adapted from:
+ * gas compatible max based on the idea from:
  * http://graphics.stanford.edu/~seander/bithacks.html#IntegerMinOrMax
+ *
+ * The additional "-" is needed because gas uses a "true" value of -1.
  */
 #define alt_max_short(a, b)	((a) ^ (((a) ^ (b)) & -(-((a) < (b)))))
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/include/asm/alternative.h linux-libre-4.4.107-gnu/arch/x86/include/asm/alternative.h
--- linux-libre-4.4-gnu/arch/x86/include/asm/alternative.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/include/asm/alternative.h	2017-12-20 04:05:01.000000000 -0500
@@ -102,12 +102,12 @@ static inline int alternatives_text_rese
 	alt_end_marker ":\n"
 
 /*
- * max without conditionals. Idea adapted from:
+ * gas compatible max based on the idea from:
  * http://graphics.stanford.edu/~seander/bithacks.html#IntegerMinOrMax
  *
- * The additional "-" is needed because gas works with s32s.
+ * The additional "-" is needed because gas uses a "true" value of -1.
  */
-#define alt_max_short(a, b)	"((" a ") ^ (((" a ") ^ (" b ")) & -(-((" a ") - (" b ")))))"
+#define alt_max_short(a, b)	"((" a ") ^ (((" a ") ^ (" b ")) & -(-((" a ") < (" b ")))))"
 
 /*
  * Pad the second replacement alternative with additional NOPs if it is
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/include/asm/apic.h linux-libre-4.4.107-gnu/arch/x86/include/asm/apic.h
--- linux-libre-4.4-gnu/arch/x86/include/asm/apic.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/include/asm/apic.h	2017-12-20 04:05:01.000000000 -0500
@@ -638,8 +638,8 @@ static inline void entering_irq(void)
 
 static inline void entering_ack_irq(void)
 {
-	ack_APIC_irq();
 	entering_irq();
+	ack_APIC_irq();
 }
 
 static inline void ipi_entering_ack_irq(void)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/include/asm/boot.h linux-libre-4.4.107-gnu/arch/x86/include/asm/boot.h
--- linux-libre-4.4-gnu/arch/x86/include/asm/boot.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/include/asm/boot.h	2017-12-20 04:05:01.000000000 -0500
@@ -27,7 +27,7 @@
 #define BOOT_HEAP_SIZE             0x400000
 #else /* !CONFIG_KERNEL_BZIP2 */
 
-#define BOOT_HEAP_SIZE	0x8000
+#define BOOT_HEAP_SIZE	0x10000
 
 #endif /* !CONFIG_KERNEL_BZIP2 */
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/include/asm/elf.h linux-libre-4.4.107-gnu/arch/x86/include/asm/elf.h
--- linux-libre-4.4-gnu/arch/x86/include/asm/elf.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/include/asm/elf.h	2017-12-20 04:05:01.000000000 -0500
@@ -204,6 +204,7 @@ void set_personality_ia32(bool);
 
 #define ELF_CORE_COPY_REGS(pr_reg, regs)			\
 do {								\
+	unsigned long base;					\
 	unsigned v;						\
 	(pr_reg)[0] = (regs)->r15;				\
 	(pr_reg)[1] = (regs)->r14;				\
@@ -226,8 +227,8 @@ do {								\
 	(pr_reg)[18] = (regs)->flags;				\
 	(pr_reg)[19] = (regs)->sp;				\
 	(pr_reg)[20] = (regs)->ss;				\
-	(pr_reg)[21] = current->thread.fs;			\
-	(pr_reg)[22] = current->thread.gs;			\
+	rdmsrl(MSR_FS_BASE, base); (pr_reg)[21] = base;		\
+	rdmsrl(MSR_KERNEL_GS_BASE, base); (pr_reg)[22] = base;	\
 	asm("movl %%ds,%0" : "=r" (v)); (pr_reg)[23] = v;	\
 	asm("movl %%es,%0" : "=r" (v)); (pr_reg)[24] = v;	\
 	asm("movl %%fs,%0" : "=r" (v)); (pr_reg)[25] = v;	\
@@ -245,12 +246,13 @@ extern int force_personality32;
 #define CORE_DUMP_USE_REGSET
 #define ELF_EXEC_PAGESIZE	4096
 
-/* This is the location that an ET_DYN program is loaded if exec'ed.  Typical
-   use of this is to invoke "./ld.so someprog" to test out a new version of
-   the loader.  We need to make sure that it is out of the way of the program
-   that it will "exec", and that there is sufficient room for the brk.  */
-
-#define ELF_ET_DYN_BASE		(TASK_SIZE / 3 * 2)
+/*
+ * This is the base location for PIE (ET_DYN with INTERP) loads. On
+ * 64-bit, this is above 4GB to leave the entire 32-bit address
+ * space open for things that want to use the area for 32-bit pointers.
+ */
+#define ELF_ET_DYN_BASE		(mmap_is_ia32() ? 0x000400000UL : \
+						  (TASK_SIZE / 3 * 2))
 
 /* This yields a mask that user programs can use to figure out what
    instruction set this CPU supports.  This could be done in user space,
@@ -278,7 +280,7 @@ struct task_struct;
 
 #define	ARCH_DLINFO_IA32						\
 do {									\
-	if (vdso32_enabled) {						\
+	if (VDSO_CURRENT_BASE) {					\
 		NEW_AUX_ENT(AT_SYSINFO,	VDSO_ENTRY);			\
 		NEW_AUX_ENT(AT_SYSINFO_EHDR, VDSO_CURRENT_BASE);	\
 	}								\
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/include/asm/hugetlb.h linux-libre-4.4.107-gnu/arch/x86/include/asm/hugetlb.h
--- linux-libre-4.4-gnu/arch/x86/include/asm/hugetlb.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/include/asm/hugetlb.h	2017-12-20 04:05:01.000000000 -0500
@@ -4,6 +4,7 @@
 #include <asm/page.h>
 #include <asm-generic/hugetlb.h>
 
+#define hugepages_supported() cpu_has_pse
 
 static inline int is_hugepage_only_range(struct mm_struct *mm,
 					 unsigned long addr,
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/include/asm/hw_irq.h linux-libre-4.4.107-gnu/arch/x86/include/asm/hw_irq.h
--- linux-libre-4.4-gnu/arch/x86/include/asm/hw_irq.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/include/asm/hw_irq.h	2017-12-20 04:05:01.000000000 -0500
@@ -136,6 +136,7 @@ struct irq_alloc_info {
 struct irq_cfg {
 	unsigned int		dest_apicid;
 	u8			vector;
+	u8			old_vector;
 };
 
 extern struct irq_cfg *irq_cfg(unsigned int irq);
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/include/asm/io.h linux-libre-4.4.107-gnu/arch/x86/include/asm/io.h
--- linux-libre-4.4-gnu/arch/x86/include/asm/io.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/include/asm/io.h	2017-12-20 04:05:01.000000000 -0500
@@ -304,13 +304,13 @@ static inline unsigned type in##bwl##_p(
 static inline void outs##bwl(int port, const void *addr, unsigned long count) \
 {									\
 	asm volatile("rep; outs" #bwl					\
-		     : "+S"(addr), "+c"(count) : "d"(port));		\
+		     : "+S"(addr), "+c"(count) : "d"(port) : "memory");	\
 }									\
 									\
 static inline void ins##bwl(int port, void *addr, unsigned long count)	\
 {									\
 	asm volatile("rep; ins" #bwl					\
-		     : "+D"(addr), "+c"(count) : "d"(port));		\
+		     : "+D"(addr), "+c"(count) : "d"(port) : "memory");	\
 }
 
 BUILDIO(b, b, char)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/include/asm/irq.h linux-libre-4.4.107-gnu/arch/x86/include/asm/irq.h
--- linux-libre-4.4-gnu/arch/x86/include/asm/irq.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/include/asm/irq.h	2017-12-20 04:05:01.000000000 -0500
@@ -23,11 +23,13 @@ extern void irq_ctx_init(int cpu);
 
 #define __ARCH_HAS_DO_SOFTIRQ
 
+struct irq_desc;
+
 #ifdef CONFIG_HOTPLUG_CPU
 #include <linux/cpumask.h>
 extern int check_irq_vectors_for_cpu_disable(void);
 extern void fixup_irqs(void);
-extern void irq_force_complete_move(int);
+extern void irq_force_complete_move(struct irq_desc *desc);
 #endif
 
 #ifdef CONFIG_HAVE_KVM
@@ -37,7 +39,6 @@ extern void kvm_set_posted_intr_wakeup_h
 extern void (*x86_platform_ipi_callback)(void);
 extern void native_init_IRQ(void);
 
-struct irq_desc;
 extern bool handle_irq(struct irq_desc *desc, struct pt_regs *regs);
 
 extern __visible unsigned int do_IRQ(struct pt_regs *regs);
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/include/asm/kvm_emulate.h linux-libre-4.4.107-gnu/arch/x86/include/asm/kvm_emulate.h
--- linux-libre-4.4-gnu/arch/x86/include/asm/kvm_emulate.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/include/asm/kvm_emulate.h	2017-12-20 04:05:01.000000000 -0500
@@ -221,6 +221,9 @@ struct x86_emulate_ops {
 	void (*get_cpuid)(struct x86_emulate_ctxt *ctxt,
 			  u32 *eax, u32 *ebx, u32 *ecx, u32 *edx);
 	void (*set_nmi_mask)(struct x86_emulate_ctxt *ctxt, bool masked);
+
+	unsigned (*get_hflags)(struct x86_emulate_ctxt *ctxt);
+	void (*set_hflags)(struct x86_emulate_ctxt *ctxt, unsigned hflags);
 };
 
 typedef u32 __attribute__((vector_size(16))) sse128_t;
@@ -290,10 +293,10 @@ struct x86_emulate_ctxt {
 
 	/* interruptibility state, as a result of execution of STI or MOV SS */
 	int interruptibility;
-	int emul_flags;
 
 	bool perm_ok; /* do not check permissions if true */
 	bool ud;	/* inject an #UD if host doesn't support insn */
+	bool tf;	/* TF value before instruction (after for syscall/sysret) */
 
 	bool have_exception;
 	struct x86_exception exception;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/include/asm/kvm_host.h linux-libre-4.4.107-gnu/arch/x86/include/asm/kvm_host.h
--- linux-libre-4.4-gnu/arch/x86/include/asm/kvm_host.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/include/asm/kvm_host.h	2017-12-20 04:05:01.000000000 -0500
@@ -41,7 +41,7 @@
 
 #define KVM_PIO_PAGE_OFFSET 1
 #define KVM_COALESCED_MMIO_PAGE_OFFSET 2
-#define KVM_HALT_POLL_NS_DEFAULT 500000
+#define KVM_HALT_POLL_NS_DEFAULT 400000
 
 #define KVM_IRQCHIP_NUM_PINS  KVM_IOAPIC_NUM_PINS
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/include/asm/microcode.h linux-libre-4.4.107-gnu/arch/x86/include/asm/microcode.h
--- linux-libre-4.4-gnu/arch/x86/include/asm/microcode.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/include/asm/microcode.h	2017-12-20 04:05:01.000000000 -0500
@@ -2,6 +2,7 @@
 #define _ASM_X86_MICROCODE_H
 
 #include <linux/earlycpio.h>
+#include <linux/initrd.h>
 
 #define native_rdmsr(msr, val1, val2)			\
 do {							\
@@ -168,4 +169,29 @@ static inline void reload_early_microcod
 static inline bool
 get_builtin_firmware(struct cpio_data *cd, const char *name)	{ return false; }
 #endif
+
+static inline unsigned long get_initrd_start(void)
+{
+#ifdef CONFIG_BLK_DEV_INITRD
+	return initrd_start;
+#else
+	return 0;
+#endif
+}
+
+static inline unsigned long get_initrd_start_addr(void)
+{
+#ifdef CONFIG_BLK_DEV_INITRD
+#ifdef CONFIG_X86_32
+	unsigned long *initrd_start_p = (unsigned long *)__pa_nodebug(&initrd_start);
+
+	return (unsigned long)__pa_nodebug(*initrd_start_p);
+#else
+	return get_initrd_start();
+#endif
+#else /* CONFIG_BLK_DEV_INITRD */
+	return 0;
+#endif
+}
+
 #endif /* _ASM_X86_MICROCODE_H */
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/include/asm/mmu_context.h linux-libre-4.4.107-gnu/arch/x86/include/asm/mmu_context.h
--- linux-libre-4.4-gnu/arch/x86/include/asm/mmu_context.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/include/asm/mmu_context.h	2017-12-20 04:05:01.000000000 -0500
@@ -116,8 +116,36 @@ static inline void switch_mm(struct mm_s
 #endif
 		cpumask_set_cpu(cpu, mm_cpumask(next));
 
-		/* Re-load page tables */
+		/*
+		 * Re-load page tables.
+		 *
+		 * This logic has an ordering constraint:
+		 *
+		 *  CPU 0: Write to a PTE for 'next'
+		 *  CPU 0: load bit 1 in mm_cpumask.  if nonzero, send IPI.
+		 *  CPU 1: set bit 1 in next's mm_cpumask
+		 *  CPU 1: load from the PTE that CPU 0 writes (implicit)
+		 *
+		 * We need to prevent an outcome in which CPU 1 observes
+		 * the new PTE value and CPU 0 observes bit 1 clear in
+		 * mm_cpumask.  (If that occurs, then the IPI will never
+		 * be sent, and CPU 0's TLB will contain a stale entry.)
+		 *
+		 * The bad outcome can occur if either CPU's load is
+		 * reordered before that CPU's store, so both CPUs must
+		 * execute full barriers to prevent this from happening.
+		 *
+		 * Thus, switch_mm needs a full barrier between the
+		 * store to mm_cpumask and any operation that could load
+		 * from next->pgd.  TLB fills are special and can happen
+		 * due to instruction fetches or for no reason at all,
+		 * and neither LOCK nor MFENCE orders them.
+		 * Fortunately, load_cr3() is serializing and gives the
+		 * ordering guarantee we need.
+		 *
+		 */
 		load_cr3(next->pgd);
+
 		trace_tlb_flush(TLB_FLUSH_ON_TASK_SWITCH, TLB_FLUSH_ALL);
 
 		/* Stop flush ipis for the previous mm */
@@ -156,10 +184,14 @@ static inline void switch_mm(struct mm_s
 			 * schedule, protecting us from simultaneous changes.
 			 */
 			cpumask_set_cpu(cpu, mm_cpumask(next));
+
 			/*
 			 * We were in lazy tlb mode and leave_mm disabled
 			 * tlb flush IPI delivery. We must reload CR3
 			 * to make sure to use no freed page tables.
+			 *
+			 * As above, load_cr3() is serializing and orders TLB
+			 * fills with respect to the mm_cpumask write.
 			 */
 			load_cr3(next->pgd);
 			trace_tlb_flush(TLB_FLUSH_ON_TASK_SWITCH, TLB_FLUSH_ALL);
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/include/asm/msr-index.h linux-libre-4.4.107-gnu/arch/x86/include/asm/msr-index.h
--- linux-libre-4.4-gnu/arch/x86/include/asm/msr-index.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/include/asm/msr-index.h	2017-12-20 04:05:01.000000000 -0500
@@ -405,6 +405,8 @@
 #define MSR_IA32_TSC_ADJUST             0x0000003b
 #define MSR_IA32_BNDCFGS		0x00000d90
 
+#define MSR_IA32_BNDCFGS_RSVD		0x00000ffc
+
 #define MSR_IA32_XSS			0x00000da0
 
 #define FEATURE_CONTROL_LOCKED				(1<<0)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/include/asm/mtrr.h linux-libre-4.4.107-gnu/arch/x86/include/asm/mtrr.h
--- linux-libre-4.4-gnu/arch/x86/include/asm/mtrr.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/include/asm/mtrr.h	2017-12-20 04:05:01.000000000 -0500
@@ -24,6 +24,7 @@
 #define _ASM_X86_MTRR_H
 
 #include <uapi/asm/mtrr.h>
+#include <asm/pat.h>
 
 
 /*
@@ -83,9 +84,12 @@ static inline int mtrr_trim_uncached_mem
 static inline void mtrr_centaur_report_mcr(int mcr, u32 lo, u32 hi)
 {
 }
+static inline void mtrr_bp_init(void)
+{
+	pat_disable("MTRRs disabled, skipping PAT initialization too.");
+}
 
 #define mtrr_ap_init() do {} while (0)
-#define mtrr_bp_init() do {} while (0)
 #define set_mtrr_aps_delayed_init() do {} while (0)
 #define mtrr_aps_init() do {} while (0)
 #define mtrr_bp_restore() do {} while (0)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/include/asm/pat.h linux-libre-4.4.107-gnu/arch/x86/include/asm/pat.h
--- linux-libre-4.4-gnu/arch/x86/include/asm/pat.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/include/asm/pat.h	2017-12-20 04:05:01.000000000 -0500
@@ -5,8 +5,9 @@
 #include <asm/pgtable_types.h>
 
 bool pat_enabled(void);
+void pat_disable(const char *reason);
 extern void pat_init(void);
-void pat_init_cache_modes(u64);
+extern void init_cache_modes(void);
 
 extern int reserve_memtype(u64 start, u64 end,
 		enum page_cache_mode req_pcm, enum page_cache_mode *ret_pcm);
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/include/asm/pci_x86.h linux-libre-4.4.107-gnu/arch/x86/include/asm/pci_x86.h
--- linux-libre-4.4-gnu/arch/x86/include/asm/pci_x86.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/include/asm/pci_x86.h	2017-12-20 04:05:01.000000000 -0500
@@ -93,6 +93,8 @@ extern raw_spinlock_t pci_config_lock;
 extern int (*pcibios_enable_irq)(struct pci_dev *dev);
 extern void (*pcibios_disable_irq)(struct pci_dev *dev);
 
+extern bool mp_should_keep_irq(struct device *dev);
+
 struct pci_raw_ops {
 	int (*read)(unsigned int domain, unsigned int bus, unsigned int devfn,
 						int reg, int len, u32 *val);
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/include/asm/perf_event.h linux-libre-4.4.107-gnu/arch/x86/include/asm/perf_event.h
--- linux-libre-4.4-gnu/arch/x86/include/asm/perf_event.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/include/asm/perf_event.h	2017-12-20 04:05:01.000000000 -0500
@@ -165,6 +165,7 @@ struct x86_pmu_capability {
 #define GLOBAL_STATUS_ASIF				BIT_ULL(60)
 #define GLOBAL_STATUS_COUNTERS_FROZEN			BIT_ULL(59)
 #define GLOBAL_STATUS_LBRS_FROZEN			BIT_ULL(58)
+#define GLOBAL_STATUS_TRACE_TOPAPMI			BIT_ULL(55)
 
 /*
  * IBS cpuid feature detection
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/include/asm/pgtable_types.h linux-libre-4.4.107-gnu/arch/x86/include/asm/pgtable_types.h
--- linux-libre-4.4-gnu/arch/x86/include/asm/pgtable_types.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/include/asm/pgtable_types.h	2017-12-20 04:05:01.000000000 -0500
@@ -363,20 +363,18 @@ static inline enum page_cache_mode pgpro
 }
 static inline pgprot_t pgprot_4k_2_large(pgprot_t pgprot)
 {
+	pgprotval_t val = pgprot_val(pgprot);
 	pgprot_t new;
-	unsigned long val;
 
-	val = pgprot_val(pgprot);
 	pgprot_val(new) = (val & ~(_PAGE_PAT | _PAGE_PAT_LARGE)) |
 		((val & _PAGE_PAT) << (_PAGE_BIT_PAT_LARGE - _PAGE_BIT_PAT));
 	return new;
 }
 static inline pgprot_t pgprot_large_2_4k(pgprot_t pgprot)
 {
+	pgprotval_t val = pgprot_val(pgprot);
 	pgprot_t new;
-	unsigned long val;
 
-	val = pgprot_val(pgprot);
 	pgprot_val(new) = (val & ~(_PAGE_PAT | _PAGE_PAT_LARGE)) |
 			  ((val & _PAGE_PAT_LARGE) >>
 			   (_PAGE_BIT_PAT_LARGE - _PAGE_BIT_PAT));
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/include/asm/pmem.h linux-libre-4.4.107-gnu/arch/x86/include/asm/pmem.h
--- linux-libre-4.4-gnu/arch/x86/include/asm/pmem.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/include/asm/pmem.h	2017-12-20 04:05:01.000000000 -0500
@@ -72,8 +72,8 @@ static inline void arch_wmb_pmem(void)
  * @size:	number of bytes to write back
  *
  * Write back a cache range using the CLWB (cache line write back)
- * instruction.  This function requires explicit ordering with an
- * arch_wmb_pmem() call.  This API is internal to the x86 PMEM implementation.
+ * instruction. Note that @size is internally rounded up to be cache
+ * line size aligned.
  */
 static inline void __arch_wb_cache_pmem(void *vaddr, size_t size)
 {
@@ -87,15 +87,6 @@ static inline void __arch_wb_cache_pmem(
 		clwb(p);
 }
 
-/*
- * copy_from_iter_nocache() on x86 only uses non-temporal stores for iovec
- * iterators, so for other types (bvec & kvec) we must do a cache write-back.
- */
-static inline bool __iter_needs_pmem_wb(struct iov_iter *i)
-{
-	return iter_is_iovec(i) == false;
-}
-
 /**
  * arch_copy_from_iter_pmem - copy data from an iterator to PMEM
  * @addr:	PMEM destination address
@@ -114,8 +105,36 @@ static inline size_t arch_copy_from_iter
 	/* TODO: skip the write-back by always using non-temporal stores */
 	len = copy_from_iter_nocache(vaddr, bytes, i);
 
-	if (__iter_needs_pmem_wb(i))
-		__arch_wb_cache_pmem(vaddr, bytes);
+	/*
+	 * In the iovec case on x86_64 copy_from_iter_nocache() uses
+	 * non-temporal stores for the bulk of the transfer, but we need
+	 * to manually flush if the transfer is unaligned. A cached
+	 * memory copy is used when destination or size is not naturally
+	 * aligned. That is:
+	 *   - Require 8-byte alignment when size is 8 bytes or larger.
+	 *   - Require 4-byte alignment when size is 4 bytes.
+	 *
+	 * In the non-iovec case the entire destination needs to be
+	 * flushed.
+	 */
+	if (iter_is_iovec(i)) {
+		unsigned long flushed, dest = (unsigned long) addr;
+
+		if (bytes < 8) {
+			if (!IS_ALIGNED(dest, 4) || (bytes != 4))
+				__arch_wb_cache_pmem(addr, bytes);
+		} else {
+			if (!IS_ALIGNED(dest, 8)) {
+				dest = ALIGN(dest, boot_cpu_data.x86_clflush_size);
+				__arch_wb_cache_pmem(addr, 1);
+			}
+
+			flushed = dest - (unsigned long) addr;
+			if (bytes > flushed && !IS_ALIGNED(bytes - flushed, 8))
+				__arch_wb_cache_pmem(addr + bytes - 1, 1);
+		}
+	} else
+		__arch_wb_cache_pmem(addr, bytes);
 
 	return len;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/include/asm/pvclock.h linux-libre-4.4.107-gnu/arch/x86/include/asm/pvclock.h
--- linux-libre-4.4-gnu/arch/x86/include/asm/pvclock.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/include/asm/pvclock.h	2017-12-20 04:05:01.000000000 -0500
@@ -76,6 +76,8 @@ unsigned __pvclock_read_cycles(const str
 	u8 ret_flags;
 
 	version = src->version;
+	/* Make the latest version visible */
+	smp_rmb();
 
 	offset = pvclock_get_nsec_offset(src);
 	ret = src->system_time + offset;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/include/asm/syscalls.h linux-libre-4.4.107-gnu/arch/x86/include/asm/syscalls.h
--- linux-libre-4.4-gnu/arch/x86/include/asm/syscalls.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/include/asm/syscalls.h	2017-12-20 04:05:01.000000000 -0500
@@ -21,7 +21,7 @@ asmlinkage long sys_ioperm(unsigned long
 asmlinkage long sys_iopl(unsigned int);
 
 /* kernel/ldt.c */
-asmlinkage int sys_modify_ldt(int, void __user *, unsigned long);
+asmlinkage long sys_modify_ldt(int, void __user *, unsigned long);
 
 /* kernel/signal.c */
 asmlinkage long sys_rt_sigreturn(void);
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/include/asm/tlbflush.h linux-libre-4.4.107-gnu/arch/x86/include/asm/tlbflush.h
--- linux-libre-4.4-gnu/arch/x86/include/asm/tlbflush.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/include/asm/tlbflush.h	2017-12-20 04:05:01.000000000 -0500
@@ -32,7 +32,7 @@ DECLARE_PER_CPU_SHARED_ALIGNED(struct tl
 /* Initialize cr4 shadow for this CPU. */
 static inline void cr4_init_shadow(void)
 {
-	this_cpu_write(cpu_tlbstate.cr4, __read_cr4());
+	this_cpu_write(cpu_tlbstate.cr4, __read_cr4_safe());
 }
 
 /* Set in this cpu's CR4. */
@@ -86,7 +86,14 @@ static inline void cr4_set_bits_and_upda
 
 static inline void __native_flush_tlb(void)
 {
+	/*
+	 * If current->mm == NULL then we borrow a mm which may change during a
+	 * task switch and therefore we must not be preempted while we write CR3
+	 * back:
+	 */
+	preempt_disable();
 	native_write_cr3(native_read_cr3());
+	preempt_enable();
 }
 
 static inline void __native_flush_tlb_global_irq_disabled(void)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/include/asm/uaccess.h linux-libre-4.4.107-gnu/arch/x86/include/asm/uaccess.h
--- linux-libre-4.4-gnu/arch/x86/include/asm/uaccess.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/include/asm/uaccess.h	2017-12-20 04:05:01.000000000 -0500
@@ -7,6 +7,7 @@
 #include <linux/compiler.h>
 #include <linux/thread_info.h>
 #include <linux/string.h>
+#include <linux/preempt.h>
 #include <asm/asm.h>
 #include <asm/page.h>
 #include <asm/smap.h>
@@ -66,6 +67,12 @@ static inline bool __chk_range_not_ok(un
 	__chk_range_not_ok((unsigned long __force)(addr), size, limit); \
 })
 
+#ifdef CONFIG_DEBUG_ATOMIC_SLEEP
+# define WARN_ON_IN_IRQ()	WARN_ON_ONCE(!in_task())
+#else
+# define WARN_ON_IN_IRQ()
+#endif
+
 /**
  * access_ok: - Checks if a user space pointer is valid
  * @type: Type of access: %VERIFY_READ or %VERIFY_WRITE.  Note that
@@ -86,8 +93,11 @@ static inline bool __chk_range_not_ok(un
  * checks that the pointer is in the user space range - after calling
  * this function, memory access functions may still return -EFAULT.
  */
-#define access_ok(type, addr, size) \
-	likely(!__range_not_ok(addr, size, user_addr_max()))
+#define access_ok(type, addr, size)					\
+({									\
+	WARN_ON_IN_IRQ();						\
+	likely(!__range_not_ok(addr, size, user_addr_max()));		\
+})
 
 /*
  * The exception table consists of pairs of addresses relative to the
@@ -332,7 +342,7 @@ do {									\
 #define __get_user_asm_u64(x, ptr, retval, errret) \
 	 __get_user_asm(x, ptr, retval, "q", "", "=r", errret)
 #define __get_user_asm_ex_u64(x, ptr) \
-	 __get_user_asm_ex(x, ptr, "q", "", "=r")
+	 __get_user_asm_ex(x, ptr, "q", "", "=&r")
 #endif
 
 #define __get_user_size(x, ptr, size, retval, errret)			\
@@ -375,13 +385,13 @@ do {									\
 	__chk_user_ptr(ptr);						\
 	switch (size) {							\
 	case 1:								\
-		__get_user_asm_ex(x, ptr, "b", "b", "=q");		\
+		__get_user_asm_ex(x, ptr, "b", "b", "=&q");		\
 		break;							\
 	case 2:								\
-		__get_user_asm_ex(x, ptr, "w", "w", "=r");		\
+		__get_user_asm_ex(x, ptr, "w", "w", "=&r");		\
 		break;							\
 	case 4:								\
-		__get_user_asm_ex(x, ptr, "l", "k", "=r");		\
+		__get_user_asm_ex(x, ptr, "l", "k", "=&r");		\
 		break;							\
 	case 8:								\
 		__get_user_asm_ex_u64(x, ptr);				\
@@ -395,7 +405,7 @@ do {									\
 	asm volatile("1:	mov"itype" %1,%"rtype"0\n"		\
 		     "2:\n"						\
 		     _ASM_EXTABLE_EX(1b, 2b)				\
-		     : ltype(x) : "m" (__m(addr)))
+		     : ltype(x) : "m" (__m(addr)), "0" (0))
 
 #define __put_user_nocheck(x, ptr, size)			\
 ({								\
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/include/asm/xen/hypercall.h linux-libre-4.4.107-gnu/arch/x86/include/asm/xen/hypercall.h
--- linux-libre-4.4-gnu/arch/x86/include/asm/xen/hypercall.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/include/asm/xen/hypercall.h	2017-12-20 04:05:01.000000000 -0500
@@ -43,6 +43,7 @@
 
 #include <asm/page.h>
 #include <asm/pgtable.h>
+#include <asm/smap.h>
 
 #include <xen/interface/xen.h>
 #include <xen/interface/sched.h>
@@ -213,10 +214,12 @@ privcmd_call(unsigned call,
 	__HYPERCALL_DECLS;
 	__HYPERCALL_5ARG(a1, a2, a3, a4, a5);
 
+	stac();
 	asm volatile("call *%[call]"
 		     : __HYPERCALL_5PARAM
 		     : [call] "a" (&hypercall_page[call])
 		     : __HYPERCALL_CLOBBER5);
+	clac();
 
 	return (long)__res;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/include/asm/xen/hypervisor.h linux-libre-4.4.107-gnu/arch/x86/include/asm/xen/hypervisor.h
--- linux-libre-4.4-gnu/arch/x86/include/asm/xen/hypervisor.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/include/asm/xen/hypervisor.h	2017-12-20 04:05:01.000000000 -0500
@@ -62,4 +62,6 @@ void xen_arch_register_cpu(int num);
 void xen_arch_unregister_cpu(int num);
 #endif
 
+extern void xen_set_iopl_mask(unsigned mask);
+
 #endif /* _ASM_X86_XEN_HYPERVISOR_H */
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/Kconfig linux-libre-4.4.107-gnu/arch/x86/Kconfig
--- linux-libre-4.4-gnu/arch/x86/Kconfig	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/Kconfig	2017-12-20 04:05:01.000000000 -0500
@@ -1126,22 +1126,23 @@ config MICROCODE
 	bool "CPU microcode loading support"
 	default y
 	depends on CPU_SUP_AMD || CPU_SUP_INTEL
-	depends on BLK_DEV_INITRD
 	select FW_LOADER
 	---help---
-
 	  If you say Y here, you will be able to update the microcode on
-	  certain Intel and AMD processors. The Intel support is for the
-	  IA32 family, e.g. Pentium Pro, Pentium II, Pentium III, Pentium 4,
-	  Xeon etc. The AMD support is for families 0x10 and later. You will
-	  obviously need the actual microcode binary data itself which is not
-	  shipped with the Linux kernel.
+	  Intel and AMD processors. The Intel support is for the IA32 family,
+	  e.g. Pentium Pro, Pentium II, Pentium III, Pentium 4, Xeon etc. The
+	  AMD support is for families 0x10 and later. You will obviously need
+	  the actual microcode binary data itself which is not shipped with
+	  the Linux kernel.
 
-	  This option selects the general module only, you need to select
-	  at least one vendor specific module as well.
+	  The preferred method to load microcode from a detached initrd is described
+	  in Documentation/x86/early-microcode.txt. For that you need to enable
+	  CONFIG_BLK_DEV_INITRD in order for the loader to be able to scan the
+	  initrd for microcode blobs.
 
-	  To compile this driver as a module, choose M here: the module
-	  will be called microcode.
+	  In addition, you can build-in the microcode into the kernel. For that you
+	  need to enable FIRMWARE_IN_KERNEL and add the vendor-supplied microcode
+	  to the CONFIG_EXTRA_FIRMWARE config option.
 
 config MICROCODE_INTEL
 	bool "Intel microcode loading support"
@@ -2640,10 +2641,6 @@ config COMPAT_FOR_U64_ALIGNMENT
 config SYSVIPC_COMPAT
 	def_bool y
 	depends on SYSVIPC
-
-config KEYS_COMPAT
-	def_bool y
-	depends on KEYS
 endif
 
 endmenu
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kernel/acpi/boot.c linux-libre-4.4.107-gnu/arch/x86/kernel/acpi/boot.c
--- linux-libre-4.4-gnu/arch/x86/kernel/acpi/boot.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/kernel/acpi/boot.c	2017-12-20 04:05:01.000000000 -0500
@@ -329,6 +329,14 @@ static void __init mp_override_legacy_ir
 	struct mpc_intsrc mp_irq;
 
 	/*
+	 * Check bus_irq boundary.
+	 */
+	if (bus_irq >= NR_IRQS_LEGACY) {
+		pr_warn("Invalid bus_irq %u for legacy override\n", bus_irq);
+		return;
+	}
+
+	/*
 	 * Convert 'gsi' to 'ioapic.pin'.
 	 */
 	ioapic = mp_find_ioapic(gsi);
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kernel/acpi/sleep.c linux-libre-4.4.107-gnu/arch/x86/kernel/acpi/sleep.c
--- linux-libre-4.4-gnu/arch/x86/kernel/acpi/sleep.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/kernel/acpi/sleep.c	2017-12-20 04:05:01.000000000 -0500
@@ -16,6 +16,7 @@
 #include <asm/cacheflush.h>
 #include <asm/realmode.h>
 
+#include <linux/ftrace.h>
 #include "../../realmode/rm/wakeup.h"
 #include "sleep.h"
 
@@ -107,7 +108,13 @@ int x86_acpi_suspend_lowlevel(void)
        saved_magic = 0x123456789abcdef0L;
 #endif /* CONFIG_64BIT */
 
+	/*
+	 * Pause/unpause graph tracing around do_suspend_lowlevel as it has
+	 * inconsistent call/return info after it jumps to the wakeup vector.
+	 */
+	pause_graph_tracing();
 	do_suspend_lowlevel();
+	unpause_graph_tracing();
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kernel/amd_nb.c linux-libre-4.4.107-gnu/arch/x86/kernel/amd_nb.c
--- linux-libre-4.4-gnu/arch/x86/kernel/amd_nb.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/kernel/amd_nb.c	2017-12-20 04:05:01.000000000 -0500
@@ -71,8 +71,8 @@ int amd_cache_northbridges(void)
 	while ((misc = next_northbridge(misc, amd_nb_misc_ids)) != NULL)
 		i++;
 
-	if (i == 0)
-		return 0;
+	if (!i)
+		return -ENODEV;
 
 	nb = kzalloc(i * sizeof(struct amd_northbridge), GFP_KERNEL);
 	if (!nb)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kernel/apic/apic.c linux-libre-4.4.107-gnu/arch/x86/kernel/apic/apic.c
--- linux-libre-4.4-gnu/arch/x86/kernel/apic/apic.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/kernel/apic/apic.c	2017-12-20 04:05:01.000000000 -0500
@@ -1587,6 +1587,9 @@ void __init enable_IR_x2apic(void)
 	unsigned long flags;
 	int ret, ir_stat;
 
+	if (skip_ioapic_setup)
+		return;
+
 	ir_stat = irq_remapping_prepare();
 	if (ir_stat < 0 && !x2apic_supported())
 		return;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kernel/apic/io_apic.c linux-libre-4.4.107-gnu/arch/x86/kernel/apic/io_apic.c
--- linux-libre-4.4-gnu/arch/x86/kernel/apic/io_apic.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/kernel/apic/io_apic.c	2017-12-20 04:05:01.000000000 -0500
@@ -1875,6 +1875,7 @@ static struct irq_chip ioapic_chip __rea
 	.irq_ack		= irq_chip_ack_parent,
 	.irq_eoi		= ioapic_ack_level,
 	.irq_set_affinity	= ioapic_set_affinity,
+	.irq_retrigger		= irq_chip_retrigger_hierarchy,
 	.flags			= IRQCHIP_SKIP_SET_WAKE,
 };
 
@@ -1886,6 +1887,7 @@ static struct irq_chip ioapic_ir_chip __
 	.irq_ack		= irq_chip_ack_parent,
 	.irq_eoi		= ioapic_ir_ack_level,
 	.irq_set_affinity	= ioapic_set_affinity,
+	.irq_retrigger		= irq_chip_retrigger_hierarchy,
 	.flags			= IRQCHIP_SKIP_SET_WAKE,
 };
 
@@ -2113,8 +2115,9 @@ static inline void __init check_timer(vo
 			int idx;
 			idx = find_irq_entry(apic1, pin1, mp_INT);
 			if (idx != -1 && irq_trigger(idx))
-				unmask_ioapic_irq(irq_get_chip_data(0));
+				unmask_ioapic_irq(irq_get_irq_data(0));
 		}
+		irq_domain_deactivate_irq(irq_data);
 		irq_domain_activate_irq(irq_data);
 		if (timer_irq_works()) {
 			if (disable_timer_pin_1 > 0)
@@ -2136,6 +2139,7 @@ static inline void __init check_timer(vo
 		 * legacy devices should be connected to IO APIC #0
 		 */
 		replace_pin_at_irq_node(data, node, apic1, pin1, apic2, pin2);
+		irq_domain_deactivate_irq(irq_data);
 		irq_domain_activate_irq(irq_data);
 		legacy_pic->unmask(0);
 		if (timer_irq_works()) {
@@ -2521,6 +2525,7 @@ void __init setup_ioapic_dest(void)
 {
 	int pin, ioapic, irq, irq_entry;
 	const struct cpumask *mask;
+	struct irq_desc *desc;
 	struct irq_data *idata;
 	struct irq_chip *chip;
 
@@ -2536,7 +2541,9 @@ void __init setup_ioapic_dest(void)
 		if (irq < 0 || !mp_init_irq_at_boot(ioapic, irq))
 			continue;
 
-		idata = irq_get_irq_data(irq);
+		desc = irq_to_desc(irq);
+		raw_spin_lock_irq(&desc->lock);
+		idata = irq_desc_get_irq_data(desc);
 
 		/*
 		 * Honour affinities which have been set in early boot
@@ -2550,6 +2557,7 @@ void __init setup_ioapic_dest(void)
 		/* Might be lapic_chip for irq 0 */
 		if (chip->irq_set_affinity)
 			chip->irq_set_affinity(idata, mask, false);
+		raw_spin_unlock_irq(&desc->lock);
 	}
 }
 #endif
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kernel/apic/vector.c linux-libre-4.4.107-gnu/arch/x86/kernel/apic/vector.c
--- linux-libre-4.4-gnu/arch/x86/kernel/apic/vector.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/kernel/apic/vector.c	2017-12-20 04:05:01.000000000 -0500
@@ -30,7 +30,7 @@ struct apic_chip_data {
 
 struct irq_domain *x86_vector_domain;
 static DEFINE_RAW_SPINLOCK(vector_lock);
-static cpumask_var_t vector_cpumask;
+static cpumask_var_t vector_cpumask, vector_searchmask, searched_cpumask;
 static struct irq_chip lapic_controller;
 #ifdef	CONFIG_X86_IO_APIC
 static struct apic_chip_data *legacy_irq_data[NR_IRQS_LEGACY];
@@ -116,35 +116,47 @@ static int __assign_irq_vector(int irq,
 	 */
 	static int current_vector = FIRST_EXTERNAL_VECTOR + VECTOR_OFFSET_START;
 	static int current_offset = VECTOR_OFFSET_START % 16;
-	int cpu, err;
+	int cpu, vector;
 
-	if (d->move_in_progress)
+	/*
+	 * If there is still a move in progress or the previous move has not
+	 * been cleaned up completely, tell the caller to come back later.
+	 */
+	if (d->move_in_progress ||
+	    cpumask_intersects(d->old_domain, cpu_online_mask))
 		return -EBUSY;
 
 	/* Only try and allocate irqs on cpus that are present */
-	err = -ENOSPC;
 	cpumask_clear(d->old_domain);
+	cpumask_clear(searched_cpumask);
 	cpu = cpumask_first_and(mask, cpu_online_mask);
 	while (cpu < nr_cpu_ids) {
-		int new_cpu, vector, offset;
+		int new_cpu, offset;
 
+		/* Get the possible target cpus for @mask/@cpu from the apic */
 		apic->vector_allocation_domain(cpu, vector_cpumask, mask);
 
+		/*
+		 * Clear the offline cpus from @vector_cpumask for searching
+		 * and verify whether the result overlaps with @mask. If true,
+		 * then the call to apic->cpu_mask_to_apicid_and() will
+		 * succeed as well. If not, no point in trying to find a
+		 * vector in this mask.
+		 */
+		cpumask_and(vector_searchmask, vector_cpumask, cpu_online_mask);
+		if (!cpumask_intersects(vector_searchmask, mask))
+			goto next_cpu;
+
 		if (cpumask_subset(vector_cpumask, d->domain)) {
-			err = 0;
 			if (cpumask_equal(vector_cpumask, d->domain))
-				break;
+				goto success;
 			/*
-			 * New cpumask using the vector is a proper subset of
-			 * the current in use mask. So cleanup the vector
-			 * allocation for the members that are not used anymore.
+			 * Mark the cpus which are not longer in the mask for
+			 * cleanup.
 			 */
-			cpumask_andnot(d->old_domain, d->domain,
-				       vector_cpumask);
-			d->move_in_progress =
-			   cpumask_intersects(d->old_domain, cpu_online_mask);
-			cpumask_and(d->domain, d->domain, vector_cpumask);
-			break;
+			cpumask_andnot(d->old_domain, d->domain, vector_cpumask);
+			vector = d->cfg.vector;
+			goto update;
 		}
 
 		vector = current_vector;
@@ -156,45 +168,61 @@ next:
 			vector = FIRST_EXTERNAL_VECTOR + offset;
 		}
 
-		if (unlikely(current_vector == vector)) {
-			cpumask_or(d->old_domain, d->old_domain,
-				   vector_cpumask);
-			cpumask_andnot(vector_cpumask, mask, d->old_domain);
-			cpu = cpumask_first_and(vector_cpumask,
-						cpu_online_mask);
-			continue;
-		}
+		/* If the search wrapped around, try the next cpu */
+		if (unlikely(current_vector == vector))
+			goto next_cpu;
 
 		if (test_bit(vector, used_vectors))
 			goto next;
 
-		for_each_cpu_and(new_cpu, vector_cpumask, cpu_online_mask) {
+		for_each_cpu(new_cpu, vector_searchmask) {
 			if (!IS_ERR_OR_NULL(per_cpu(vector_irq, new_cpu)[vector]))
 				goto next;
 		}
 		/* Found one! */
 		current_vector = vector;
 		current_offset = offset;
-		if (d->cfg.vector) {
+		/* Schedule the old vector for cleanup on all cpus */
+		if (d->cfg.vector)
 			cpumask_copy(d->old_domain, d->domain);
-			d->move_in_progress =
-			   cpumask_intersects(d->old_domain, cpu_online_mask);
-		}
-		for_each_cpu_and(new_cpu, vector_cpumask, cpu_online_mask)
+		for_each_cpu(new_cpu, vector_searchmask)
 			per_cpu(vector_irq, new_cpu)[vector] = irq_to_desc(irq);
-		d->cfg.vector = vector;
-		cpumask_copy(d->domain, vector_cpumask);
-		err = 0;
-		break;
-	}
+		goto update;
 
-	if (!err) {
-		/* cache destination APIC IDs into cfg->dest_apicid */
-		err = apic->cpu_mask_to_apicid_and(mask, d->domain,
-						   &d->cfg.dest_apicid);
+next_cpu:
+		/*
+		 * We exclude the current @vector_cpumask from the requested
+		 * @mask and try again with the next online cpu in the
+		 * result. We cannot modify @mask, so we use @vector_cpumask
+		 * as a temporary buffer here as it will be reassigned when
+		 * calling apic->vector_allocation_domain() above.
+		 */
+		cpumask_or(searched_cpumask, searched_cpumask, vector_cpumask);
+		cpumask_andnot(vector_cpumask, mask, searched_cpumask);
+		cpu = cpumask_first_and(vector_cpumask, cpu_online_mask);
+		continue;
 	}
+	return -ENOSPC;
 
-	return err;
+update:
+	/*
+	 * Exclude offline cpus from the cleanup mask and set the
+	 * move_in_progress flag when the result is not empty.
+	 */
+	cpumask_and(d->old_domain, d->old_domain, cpu_online_mask);
+	d->move_in_progress = !cpumask_empty(d->old_domain);
+	d->cfg.old_vector = d->move_in_progress ? d->cfg.vector : 0;
+	d->cfg.vector = vector;
+	cpumask_copy(d->domain, vector_cpumask);
+success:
+	/*
+	 * Cache destination APIC IDs into cfg->dest_apicid. This cannot fail
+	 * as we already established, that mask & d->domain & cpu_online_mask
+	 * is not empty.
+	 */
+	BUG_ON(apic->cpu_mask_to_apicid_and(mask, d->domain,
+					    &d->cfg.dest_apicid));
+	return 0;
 }
 
 static int assign_irq_vector(int irq, struct apic_chip_data *data,
@@ -224,11 +252,10 @@ static int assign_irq_vector_policy(int
 static void clear_irq_vector(int irq, struct apic_chip_data *data)
 {
 	struct irq_desc *desc;
-	unsigned long flags;
 	int cpu, vector;
 
-	raw_spin_lock_irqsave(&vector_lock, flags);
-	BUG_ON(!data->cfg.vector);
+	if (!data->cfg.vector)
+		return;
 
 	vector = data->cfg.vector;
 	for_each_cpu_and(cpu, data->domain, cpu_online_mask)
@@ -237,10 +264,13 @@ static void clear_irq_vector(int irq, st
 	data->cfg.vector = 0;
 	cpumask_clear(data->domain);
 
-	if (likely(!data->move_in_progress)) {
-		raw_spin_unlock_irqrestore(&vector_lock, flags);
+	/*
+	 * If move is in progress or the old_domain mask is not empty,
+	 * i.e. the cleanup IPI has not been processed yet, we need to remove
+	 * the old references to desc from all cpus vector tables.
+	 */
+	if (!data->move_in_progress && cpumask_empty(data->old_domain))
 		return;
-	}
 
 	desc = irq_to_desc(irq);
 	for_each_cpu_and(cpu, data->old_domain, cpu_online_mask) {
@@ -253,7 +283,6 @@ static void clear_irq_vector(int irq, st
 		}
 	}
 	data->move_in_progress = 0;
-	raw_spin_unlock_irqrestore(&vector_lock, flags);
 }
 
 void init_irq_alloc_info(struct irq_alloc_info *info,
@@ -274,19 +303,24 @@ void copy_irq_alloc_info(struct irq_allo
 static void x86_vector_free_irqs(struct irq_domain *domain,
 				 unsigned int virq, unsigned int nr_irqs)
 {
+	struct apic_chip_data *apic_data;
 	struct irq_data *irq_data;
+	unsigned long flags;
 	int i;
 
 	for (i = 0; i < nr_irqs; i++) {
 		irq_data = irq_domain_get_irq_data(x86_vector_domain, virq + i);
 		if (irq_data && irq_data->chip_data) {
+			raw_spin_lock_irqsave(&vector_lock, flags);
 			clear_irq_vector(virq + i, irq_data->chip_data);
-			free_apic_chip_data(irq_data->chip_data);
+			apic_data = irq_data->chip_data;
+			irq_domain_reset_irq_data(irq_data);
+			raw_spin_unlock_irqrestore(&vector_lock, flags);
+			free_apic_chip_data(apic_data);
 #ifdef	CONFIG_X86_IO_APIC
 			if (virq + i < nr_legacy_irqs())
 				legacy_irq_data[virq + i] = NULL;
 #endif
-			irq_domain_reset_irq_data(irq_data);
 		}
 	}
 }
@@ -404,6 +438,8 @@ int __init arch_early_irq_init(void)
 	arch_init_htirq_domain(x86_vector_domain);
 
 	BUG_ON(!alloc_cpumask_var(&vector_cpumask, GFP_KERNEL));
+	BUG_ON(!alloc_cpumask_var(&vector_searchmask, GFP_KERNEL));
+	BUG_ON(!alloc_cpumask_var(&searched_cpumask, GFP_KERNEL));
 
 	return arch_early_ioapic_init();
 }
@@ -492,14 +528,7 @@ static int apic_set_affinity(struct irq_
 		return -EINVAL;
 
 	err = assign_irq_vector(irq, data, dest);
-	if (err) {
-		if (assign_irq_vector(irq, data,
-				      irq_data_get_affinity_mask(irq_data)))
-			pr_err("Failed to recover vector for irq %d\n", irq);
-		return err;
-	}
-
-	return IRQ_SET_MASK_OK;
+	return err ? err : IRQ_SET_MASK_OK;
 }
 
 static struct irq_chip lapic_controller = {
@@ -511,20 +540,12 @@ static struct irq_chip lapic_controller
 #ifdef CONFIG_SMP
 static void __send_cleanup_vector(struct apic_chip_data *data)
 {
-	cpumask_var_t cleanup_mask;
-
-	if (unlikely(!alloc_cpumask_var(&cleanup_mask, GFP_ATOMIC))) {
-		unsigned int i;
-
-		for_each_cpu_and(i, data->old_domain, cpu_online_mask)
-			apic->send_IPI_mask(cpumask_of(i),
-					    IRQ_MOVE_CLEANUP_VECTOR);
-	} else {
-		cpumask_and(cleanup_mask, data->old_domain, cpu_online_mask);
-		apic->send_IPI_mask(cleanup_mask, IRQ_MOVE_CLEANUP_VECTOR);
-		free_cpumask_var(cleanup_mask);
-	}
+	raw_spin_lock(&vector_lock);
+	cpumask_and(data->old_domain, data->old_domain, cpu_online_mask);
 	data->move_in_progress = 0;
+	if (!cpumask_empty(data->old_domain))
+		apic->send_IPI_mask(data->old_domain, IRQ_MOVE_CLEANUP_VECTOR);
+	raw_spin_unlock(&vector_lock);
 }
 
 void send_cleanup_vector(struct irq_cfg *cfg)
@@ -568,12 +589,25 @@ asmlinkage __visible void smp_irq_move_c
 			goto unlock;
 
 		/*
-		 * Check if the irq migration is in progress. If so, we
-		 * haven't received the cleanup request yet for this irq.
+		 * Nothing to cleanup if irq migration is in progress
+		 * or this cpu is not set in the cleanup mask.
 		 */
-		if (data->move_in_progress)
+		if (data->move_in_progress ||
+		    !cpumask_test_cpu(me, data->old_domain))
 			goto unlock;
 
+		/*
+		 * We have two cases to handle here:
+		 * 1) vector is unchanged but the target mask got reduced
+		 * 2) vector and the target mask has changed
+		 *
+		 * #1 is obvious, but in #2 we have two vectors with the same
+		 * irq descriptor: the old and the new vector. So we need to
+		 * make sure that we only cleanup the old vector. The new
+		 * vector has the current @vector number in the config and
+		 * this cpu is part of the target mask. We better leave that
+		 * one alone.
+		 */
 		if (vector == data->cfg.vector &&
 		    cpumask_test_cpu(me, data->domain))
 			goto unlock;
@@ -591,6 +625,7 @@ asmlinkage __visible void smp_irq_move_c
 			goto unlock;
 		}
 		__this_cpu_write(vector_irq[vector], VECTOR_UNUSED);
+		cpumask_clear_cpu(me, data->old_domain);
 unlock:
 		raw_spin_unlock(&desc->lock);
 	}
@@ -619,12 +654,116 @@ void irq_complete_move(struct irq_cfg *c
 	__irq_complete_move(cfg, ~get_irq_regs()->orig_ax);
 }
 
-void irq_force_complete_move(int irq)
+/*
+ * Called from fixup_irqs() with @desc->lock held and interrupts disabled.
+ */
+void irq_force_complete_move(struct irq_desc *desc)
 {
-	struct irq_cfg *cfg = irq_cfg(irq);
+	struct irq_data *irqdata;
+	struct apic_chip_data *data;
+	struct irq_cfg *cfg;
+	unsigned int cpu;
 
-	if (cfg)
-		__irq_complete_move(cfg, cfg->vector);
+	/*
+	 * The function is called for all descriptors regardless of which
+	 * irqdomain they belong to. For example if an IRQ is provided by
+	 * an irq_chip as part of a GPIO driver, the chip data for that
+	 * descriptor is specific to the irq_chip in question.
+	 *
+	 * Check first that the chip_data is what we expect
+	 * (apic_chip_data) before touching it any further.
+	 */
+	irqdata = irq_domain_get_irq_data(x86_vector_domain,
+					  irq_desc_get_irq(desc));
+	if (!irqdata)
+		return;
+
+	data = apic_chip_data(irqdata);
+	cfg = data ? &data->cfg : NULL;
+
+	if (!cfg)
+		return;
+
+	/*
+	 * This is tricky. If the cleanup of @data->old_domain has not been
+	 * done yet, then the following setaffinity call will fail with
+	 * -EBUSY. This can leave the interrupt in a stale state.
+	 *
+	 * All CPUs are stuck in stop machine with interrupts disabled so
+	 * calling __irq_complete_move() would be completely pointless.
+	 */
+	raw_spin_lock(&vector_lock);
+	/*
+	 * Clean out all offline cpus (including the outgoing one) from the
+	 * old_domain mask.
+	 */
+	cpumask_and(data->old_domain, data->old_domain, cpu_online_mask);
+
+	/*
+	 * If move_in_progress is cleared and the old_domain mask is empty,
+	 * then there is nothing to cleanup. fixup_irqs() will take care of
+	 * the stale vectors on the outgoing cpu.
+	 */
+	if (!data->move_in_progress && cpumask_empty(data->old_domain)) {
+		raw_spin_unlock(&vector_lock);
+		return;
+	}
+
+	/*
+	 * 1) The interrupt is in move_in_progress state. That means that we
+	 *    have not seen an interrupt since the io_apic was reprogrammed to
+	 *    the new vector.
+	 *
+	 * 2) The interrupt has fired on the new vector, but the cleanup IPIs
+	 *    have not been processed yet.
+	 */
+	if (data->move_in_progress) {
+		/*
+		 * In theory there is a race:
+		 *
+		 * set_ioapic(new_vector) <-- Interrupt is raised before update
+		 *			      is effective, i.e. it's raised on
+		 *			      the old vector.
+		 *
+		 * So if the target cpu cannot handle that interrupt before
+		 * the old vector is cleaned up, we get a spurious interrupt
+		 * and in the worst case the ioapic irq line becomes stale.
+		 *
+		 * But in case of cpu hotplug this should be a non issue
+		 * because if the affinity update happens right before all
+		 * cpus rendevouz in stop machine, there is no way that the
+		 * interrupt can be blocked on the target cpu because all cpus
+		 * loops first with interrupts enabled in stop machine, so the
+		 * old vector is not yet cleaned up when the interrupt fires.
+		 *
+		 * So the only way to run into this issue is if the delivery
+		 * of the interrupt on the apic/system bus would be delayed
+		 * beyond the point where the target cpu disables interrupts
+		 * in stop machine. I doubt that it can happen, but at least
+		 * there is a theroretical chance. Virtualization might be
+		 * able to expose this, but AFAICT the IOAPIC emulation is not
+		 * as stupid as the real hardware.
+		 *
+		 * Anyway, there is nothing we can do about that at this point
+		 * w/o refactoring the whole fixup_irq() business completely.
+		 * We print at least the irq number and the old vector number,
+		 * so we have the necessary information when a problem in that
+		 * area arises.
+		 */
+		pr_warn("IRQ fixup: irq %d move in progress, old vector %d\n",
+			irqdata->irq, cfg->old_vector);
+	}
+	/*
+	 * If old_domain is not empty, then other cpus still have the irq
+	 * descriptor set in their vector array. Clean it up.
+	 */
+	for_each_cpu(cpu, data->old_domain)
+		per_cpu(vector_irq, cpu)[cfg->old_vector] = VECTOR_UNUSED;
+
+	/* Cleanup the left overs of the (half finished) move */
+	cpumask_clear(data->old_domain);
+	data->move_in_progress = 0;
+	raw_spin_unlock(&vector_lock);
 }
 #endif
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kernel/cpu/amd.c linux-libre-4.4.107-gnu/arch/x86/kernel/cpu/amd.c
--- linux-libre-4.4-gnu/arch/x86/kernel/cpu/amd.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/kernel/cpu/amd.c	2017-12-20 04:05:01.000000000 -0500
@@ -352,7 +352,6 @@ static void amd_detect_cmp(struct cpuinf
 #ifdef CONFIG_SMP
 	unsigned bits;
 	int cpu = smp_processor_id();
-	unsigned int socket_id, core_complex_id;
 
 	bits = c->x86_coreid_bits;
 	/* Low order bits define the core id (index of core in socket) */
@@ -370,10 +369,7 @@ static void amd_detect_cmp(struct cpuinf
 	 if (c->x86 != 0x17 || !cpuid_edx(0x80000006))
 		return;
 
-	socket_id	= (c->apicid >> bits) - 1;
-	core_complex_id	= (c->apicid & ((1 << bits) - 1)) >> 3;
-
-	per_cpu(cpu_llc_id, cpu) = (socket_id << 3) | core_complex_id;
+	per_cpu(cpu_llc_id, cpu) = c->apicid >> 3;
 #endif
 }
 
@@ -656,6 +652,17 @@ static void init_amd_gh(struct cpuinfo_x
 		set_cpu_bug(c, X86_BUG_AMD_TLB_MMATCH);
 }
 
+#define MSR_AMD64_DE_CFG	0xC0011029
+
+static void init_amd_ln(struct cpuinfo_x86 *c)
+{
+	/*
+	 * Apply erratum 665 fix unconditionally so machines without a BIOS
+	 * fix work.
+	 */
+	msr_set_bit(MSR_AMD64_DE_CFG, 31);
+}
+
 static void init_amd_bd(struct cpuinfo_x86 *c)
 {
 	u64 value;
@@ -713,6 +720,7 @@ static void init_amd(struct cpuinfo_x86
 	case 6:	   init_amd_k7(c); break;
 	case 0xf:  init_amd_k8(c); break;
 	case 0x10: init_amd_gh(c); break;
+	case 0x12: init_amd_ln(c); break;
 	case 0x15: init_amd_bd(c); break;
 	}
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kernel/cpu/common.c linux-libre-4.4.107-gnu/arch/x86/kernel/cpu/common.c
--- linux-libre-4.4-gnu/arch/x86/kernel/cpu/common.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/kernel/cpu/common.c	2017-12-20 04:05:01.000000000 -0500
@@ -737,21 +737,20 @@ static void __init early_identify_cpu(st
 		identify_cpu_without_cpuid(c);
 
 	/* cyrix could have cpuid enabled via c_identify()*/
-	if (!have_cpuid_p())
-		return;
-
-	cpu_detect(c);
-	get_cpu_vendor(c);
-	get_cpu_cap(c);
+	if (have_cpuid_p()) {
+		cpu_detect(c);
+		get_cpu_vendor(c);
+		get_cpu_cap(c);
 
-	if (this_cpu->c_early_init)
-		this_cpu->c_early_init(c);
+		if (this_cpu->c_early_init)
+			this_cpu->c_early_init(c);
 
-	c->cpu_index = 0;
-	filter_cpuid_features(c, false);
+		c->cpu_index = 0;
+		filter_cpuid_features(c, false);
 
-	if (this_cpu->c_bsp_init)
-		this_cpu->c_bsp_init(c);
+		if (this_cpu->c_bsp_init)
+			this_cpu->c_bsp_init(c);
+	}
 
 	setup_force_cpu_cap(X86_FEATURE_ALWAYS);
 	fpu__init_system(c);
@@ -1130,7 +1129,7 @@ static __init int setup_disablecpuid(cha
 {
 	int bit;
 
-	if (get_option(&arg, &bit) && bit < NCAPINTS*32)
+	if (get_option(&arg, &bit) && bit >= 0 && bit < NCAPINTS * 32)
 		setup_clear_cpu_cap(bit);
 	else
 		return 0;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kernel/cpu/mcheck/mce_amd.c linux-libre-4.4.107-gnu/arch/x86/kernel/cpu/mcheck/mce_amd.c
--- linux-libre-4.4-gnu/arch/x86/kernel/cpu/mcheck/mce_amd.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/kernel/cpu/mcheck/mce_amd.c	2017-12-20 04:05:01.000000000 -0500
@@ -53,7 +53,7 @@ static const char * const th_names[] = {
 	"load_store",
 	"insn_fetch",
 	"combined_unit",
-	"",
+	"decode_unit",
 	"northbridge",
 	"execution_unit",
 };
@@ -682,6 +682,9 @@ static int threshold_create_bank(unsigne
 	const char *name = th_names[bank];
 	int err = 0;
 
+	if (!dev)
+		return -ENODEV;
+
 	if (is_shared_bank(bank)) {
 		nb = node_to_amd_nb(amd_get_nb_id(cpu));
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kernel/cpu/mcheck/mce-genpool.c linux-libre-4.4.107-gnu/arch/x86/kernel/cpu/mcheck/mce-genpool.c
--- linux-libre-4.4-gnu/arch/x86/kernel/cpu/mcheck/mce-genpool.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/kernel/cpu/mcheck/mce-genpool.c	2017-12-20 04:05:01.000000000 -0500
@@ -29,7 +29,7 @@ static char gen_pool_buf[MCE_POOLSZ];
 void mce_gen_pool_process(void)
 {
 	struct llist_node *head;
-	struct mce_evt_llist *node;
+	struct mce_evt_llist *node, *tmp;
 	struct mce *mce;
 
 	head = llist_del_all(&mce_event_llist);
@@ -37,7 +37,7 @@ void mce_gen_pool_process(void)
 		return;
 
 	head = llist_reverse_order(head);
-	llist_for_each_entry(node, head, llnode) {
+	llist_for_each_entry_safe(node, tmp, head, llnode) {
 		mce = &node->mce;
 		atomic_notifier_call_chain(&x86_mce_decoder_chain, 0, mce);
 		gen_pool_free(mce_evt_pool, (unsigned long)node, sizeof(*node));
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kernel/cpu/mcheck/therm_throt.c linux-libre-4.4.107-gnu/arch/x86/kernel/cpu/mcheck/therm_throt.c
--- linux-libre-4.4-gnu/arch/x86/kernel/cpu/mcheck/therm_throt.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/kernel/cpu/mcheck/therm_throt.c	2017-12-20 04:05:01.000000000 -0500
@@ -385,6 +385,9 @@ static void intel_thermal_interrupt(void
 {
 	__u64 msr_val;
 
+	if (static_cpu_has(X86_FEATURE_HWP))
+		wrmsrl_safe(MSR_HWP_STATUS, 0);
+
 	rdmsrl(MSR_IA32_THERM_STATUS, msr_val);
 
 	/* Check for violation of core thermal thresholds*/
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kernel/cpu/microcode/intel.c linux-libre-4.4.107-gnu/arch/x86/kernel/cpu/microcode/intel.c
--- linux-libre-4.4-gnu/arch/x86/kernel/cpu/microcode/intel.c	2016-01-10 20:55:06.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/kernel/cpu/microcode/intel.c	2017-12-20 11:06:41.000000000 -0500
@@ -555,10 +555,14 @@ scan_microcode(struct mc_saved_data *mc_
 	cd.data = NULL;
 	cd.size = 0;
 
-	cd = find_cpio_data(p, (void *)start, size, &offset);
-	if (!cd.data) {
+	/* try built-in microcode if no initrd */
+	if (!size) {
 		if (!load_builtin_intel_microcode(&cd))
 			return UCODE_ERROR;
+	} else {
+		cd = find_cpio_data(p, (void *)start, size, &offset);
+		if (!cd.data)
+			return UCODE_ERROR;
 	}
 
 	return get_matching_model_microcode(0, start, cd.data, cd.size,
@@ -694,7 +698,7 @@ int __init save_microcode_in_initrd_inte
 	if (count == 0)
 		return ret;
 
-	copy_initrd_ptrs(mc_saved, mc_saved_in_initrd, initrd_start, count);
+	copy_initrd_ptrs(mc_saved, mc_saved_in_initrd, get_initrd_start(), count);
 	ret = save_microcode(&mc_saved_data, mc_saved, count);
 	if (ret)
 		pr_err("Cannot save microcode patches from initrd.\n");
@@ -732,16 +736,20 @@ void __init load_ucode_intel_bsp(void)
 	struct boot_params *p;
 
 	p	= (struct boot_params *)__pa_nodebug(&boot_params);
-	start	= p->hdr.ramdisk_image;
 	size	= p->hdr.ramdisk_size;
 
-	_load_ucode_intel_bsp(
-			(struct mc_saved_data *)__pa_nodebug(&mc_saved_data),
-			(unsigned long *)__pa_nodebug(&mc_saved_in_initrd),
-			start, size);
+	/*
+	 * Set start only if we have an initrd image. We cannot use initrd_start
+	 * because it is not set that early yet.
+	 */
+	start	= (size ? p->hdr.ramdisk_image : 0);
+
+	_load_ucode_intel_bsp((struct mc_saved_data *)__pa_nodebug(&mc_saved_data),
+			      (unsigned long *)__pa_nodebug(&mc_saved_in_initrd),
+			      start, size);
 #else
-	start	= boot_params.hdr.ramdisk_image + PAGE_OFFSET;
 	size	= boot_params.hdr.ramdisk_size;
+	start	= (size ? boot_params.hdr.ramdisk_image + PAGE_OFFSET : 0);
 
 	_load_ucode_intel_bsp(&mc_saved_data, mc_saved_in_initrd, start, size);
 #endif
@@ -752,20 +760,14 @@ void load_ucode_intel_ap(void)
 	struct mc_saved_data *mc_saved_data_p;
 	struct ucode_cpu_info uci;
 	unsigned long *mc_saved_in_initrd_p;
-	unsigned long initrd_start_addr;
 	enum ucode_state ret;
 #ifdef CONFIG_X86_32
-	unsigned long *initrd_start_p;
 
-	mc_saved_in_initrd_p =
-		(unsigned long *)__pa_nodebug(mc_saved_in_initrd);
+	mc_saved_in_initrd_p = (unsigned long *)__pa_nodebug(mc_saved_in_initrd);
 	mc_saved_data_p = (struct mc_saved_data *)__pa_nodebug(&mc_saved_data);
-	initrd_start_p = (unsigned long *)__pa_nodebug(&initrd_start);
-	initrd_start_addr = (unsigned long)__pa_nodebug(*initrd_start_p);
 #else
-	mc_saved_data_p = &mc_saved_data;
 	mc_saved_in_initrd_p = mc_saved_in_initrd;
-	initrd_start_addr = initrd_start;
+	mc_saved_data_p = &mc_saved_data;
 #endif
 
 	/*
@@ -777,7 +779,7 @@ void load_ucode_intel_ap(void)
 
 	collect_cpu_info_early(&uci);
 	ret = load_microcode(mc_saved_data_p, mc_saved_in_initrd_p,
-			     initrd_start_addr, &uci);
+			     get_initrd_start_addr(), &uci);
 
 	if (ret != UCODE_OK)
 		return;
@@ -988,6 +990,18 @@ static int get_ucode_fw(void *to, const
 	return 0;
 }
 
+static bool is_blacklisted(unsigned int cpu)
+{
+	struct cpuinfo_x86 *c = &cpu_data(cpu);
+
+	if (c->x86 == 6 && c->x86_model == 79) {
+		pr_err_once("late loading on model 79 is disabled.\n");
+		return true;
+	}
+
+	return false;
+}
+
 static enum ucode_state request_microcode_fw(int cpu, struct device *device,
 					     bool refresh_fw)
 {
@@ -996,6 +1010,9 @@ static enum ucode_state request_microcod
 	const struct firmware *firmware;
 	enum ucode_state ret;
 
+	if (is_blacklisted(cpu))
+		return UCODE_NFOUND;
+
 	sprintf(name, "/*(DEBLOBBED)*/",
 		c->x86, c->x86_model, c->x86_mask);
 
@@ -1020,6 +1037,9 @@ static int get_ucode_user(void *to, cons
 static enum ucode_state
 request_microcode_user(int cpu, const void __user *buf, size_t size)
 {
+	if (is_blacklisted(cpu))
+		return UCODE_NFOUND;
+
 	return generic_load_microcode(cpu, (void *)buf, size, &get_ucode_user);
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kernel/cpu/mshyperv.c linux-libre-4.4.107-gnu/arch/x86/kernel/cpu/mshyperv.c
--- linux-libre-4.4-gnu/arch/x86/kernel/cpu/mshyperv.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/kernel/cpu/mshyperv.c	2017-12-20 04:05:01.000000000 -0500
@@ -30,6 +30,7 @@
 #include <asm/apic.h>
 #include <asm/timer.h>
 #include <asm/reboot.h>
+#include <asm/nmi.h>
 
 struct ms_hyperv_info ms_hyperv;
 EXPORT_SYMBOL_GPL(ms_hyperv);
@@ -152,6 +153,31 @@ static struct clocksource hyperv_cs = {
 	.flags		= CLOCK_SOURCE_IS_CONTINUOUS,
 };
 
+static unsigned char hv_get_nmi_reason(void)
+{
+	return 0;
+}
+
+#ifdef CONFIG_X86_LOCAL_APIC
+/*
+ * Prior to WS2016 Debug-VM sends NMIs to all CPUs which makes
+ * it dificult to process CHANNELMSG_UNLOAD in case of crash. Handle
+ * unknown NMI on the first CPU which gets it.
+ */
+static int hv_nmi_unknown(unsigned int val, struct pt_regs *regs)
+{
+	static atomic_t nmi_cpu = ATOMIC_INIT(-1);
+
+	if (!unknown_nmi_panic)
+		return NMI_DONE;
+
+	if (atomic_cmpxchg(&nmi_cpu, -1, raw_smp_processor_id()) != -1)
+		return NMI_HANDLED;
+
+	return NMI_DONE;
+}
+#endif
+
 static void __init ms_hyperv_init_platform(void)
 {
 	/*
@@ -177,6 +203,9 @@ static void __init ms_hyperv_init_platfo
 		printk(KERN_INFO "HyperV: LAPIC Timer Frequency: %#x\n",
 				lapic_timer_frequency);
 	}
+
+	register_nmi_handler(NMI_UNKNOWN, hv_nmi_unknown, NMI_FLAG_FIRST,
+			     "hv_nmi_unknown");
 #endif
 
 	if (ms_hyperv.features & HV_X64_MSR_TIME_REF_COUNT_AVAILABLE)
@@ -191,6 +220,13 @@ static void __init ms_hyperv_init_platfo
 	machine_ops.crash_shutdown = hv_machine_crash_shutdown;
 #endif
 	mark_tsc_unstable("running on Hyper-V");
+
+	/*
+	 * Generation 2 instances don't support reading the NMI status from
+	 * 0x61 port.
+	 */
+	if (efi_enabled(EFI_BOOT))
+		x86_platform.get_nmi_reason = hv_get_nmi_reason;
 }
 
 const __refconst struct hypervisor_x86 x86_hyper_ms_hyperv = {
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kernel/cpu/mtrr/generic.c linux-libre-4.4.107-gnu/arch/x86/kernel/cpu/mtrr/generic.c
--- linux-libre-4.4-gnu/arch/x86/kernel/cpu/mtrr/generic.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/kernel/cpu/mtrr/generic.c	2017-12-20 04:05:01.000000000 -0500
@@ -444,11 +444,24 @@ static void __init print_mtrr_state(void
 		pr_debug("TOM2: %016llx aka %lldM\n", mtrr_tom2, mtrr_tom2>>20);
 }
 
+/* PAT setup for BP. We need to go through sync steps here */
+void __init mtrr_bp_pat_init(void)
+{
+	unsigned long flags;
+
+	local_irq_save(flags);
+	prepare_set();
+
+	pat_init();
+
+	post_set();
+	local_irq_restore(flags);
+}
+
 /* Grab all of the MTRR state for this CPU into *state */
 bool __init get_mtrr_state(void)
 {
 	struct mtrr_var_range *vrs;
-	unsigned long flags;
 	unsigned lo, dummy;
 	unsigned int i;
 
@@ -481,15 +494,6 @@ bool __init get_mtrr_state(void)
 
 	mtrr_state_set = 1;
 
-	/* PAT setup for BP. We need to go through sync steps here */
-	local_irq_save(flags);
-	prepare_set();
-
-	pat_init();
-
-	post_set();
-	local_irq_restore(flags);
-
 	return !!(mtrr_state.enabled & MTRR_STATE_MTRR_ENABLED);
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kernel/cpu/mtrr/main.c linux-libre-4.4.107-gnu/arch/x86/kernel/cpu/mtrr/main.c
--- linux-libre-4.4-gnu/arch/x86/kernel/cpu/mtrr/main.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/kernel/cpu/mtrr/main.c	2017-12-20 04:05:01.000000000 -0500
@@ -752,6 +752,9 @@ void __init mtrr_bp_init(void)
 			/* BIOS may override */
 			__mtrr_enabled = get_mtrr_state();
 
+			if (mtrr_enabled())
+				mtrr_bp_pat_init();
+
 			if (mtrr_cleanup(phys_addr)) {
 				changed_by_mtrr_cleanup = 1;
 				mtrr_if->set_all();
@@ -759,8 +762,16 @@ void __init mtrr_bp_init(void)
 		}
 	}
 
-	if (!mtrr_enabled())
+	if (!mtrr_enabled()) {
 		pr_info("MTRR: Disabled\n");
+
+		/*
+		 * PAT initialization relies on MTRR's rendezvous handler.
+		 * Skip PAT init until the handler can initialize both
+		 * features independently.
+		 */
+		pat_disable("MTRRs disabled, skipping PAT initialization too.");
+	}
 }
 
 void mtrr_ap_init(void)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kernel/cpu/mtrr/mtrr.h linux-libre-4.4.107-gnu/arch/x86/kernel/cpu/mtrr/mtrr.h
--- linux-libre-4.4-gnu/arch/x86/kernel/cpu/mtrr/mtrr.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/kernel/cpu/mtrr/mtrr.h	2017-12-20 04:05:01.000000000 -0500
@@ -52,6 +52,7 @@ void set_mtrr_prepare_save(struct set_mt
 void fill_mtrr_var_range(unsigned int index,
 		u32 base_lo, u32 base_hi, u32 mask_lo, u32 mask_hi);
 bool get_mtrr_state(void);
+void mtrr_bp_pat_init(void);
 
 extern void set_mtrr_ops(const struct mtrr_ops *ops);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kernel/cpu/perf_event.c linux-libre-4.4.107-gnu/arch/x86/kernel/cpu/perf_event.c
--- linux-libre-4.4-gnu/arch/x86/kernel/cpu/perf_event.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/kernel/cpu/perf_event.c	2017-12-20 04:05:01.000000000 -0500
@@ -67,7 +67,7 @@ u64 x86_perf_event_update(struct perf_ev
 	int shift = 64 - x86_pmu.cntval_bits;
 	u64 prev_raw_count, new_raw_count;
 	int idx = hwc->idx;
-	s64 delta;
+	u64 delta;
 
 	if (idx == INTEL_PMC_IDX_FIXED_BTS)
 		return 0;
@@ -593,6 +593,19 @@ void x86_pmu_disable_all(void)
 	}
 }
 
+/*
+ * There may be PMI landing after enabled=0. The PMI hitting could be before or
+ * after disable_all.
+ *
+ * If PMI hits before disable_all, the PMU will be disabled in the NMI handler.
+ * It will not be re-enabled in the NMI handler again, because enabled=0. After
+ * handling the NMI, disable_all will be called, which will not change the
+ * state either. If PMI hits after disable_all, the PMU is already disabled
+ * before entering NMI handler. The NMI handler will not change the state
+ * either.
+ *
+ * So either situation is harmless.
+ */
 static void x86_pmu_disable(struct pmu *pmu)
 {
 	struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
@@ -1983,8 +1996,8 @@ static int x86_pmu_event_init(struct per
 
 static void refresh_pce(void *ignored)
 {
-	if (current->mm)
-		load_mm_cr4(current->mm);
+	if (current->active_mm)
+		load_mm_cr4(current->active_mm);
 }
 
 static void x86_pmu_event_mapped(struct perf_event *event)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kernel/cpu/perf_event.h linux-libre-4.4.107-gnu/arch/x86/kernel/cpu/perf_event.h
--- linux-libre-4.4-gnu/arch/x86/kernel/cpu/perf_event.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/kernel/cpu/perf_event.h	2017-12-20 04:05:01.000000000 -0500
@@ -591,6 +591,7 @@ struct x86_pmu {
 			pebs_active	:1,
 			pebs_broken	:1;
 	int		pebs_record_size;
+	int		pebs_buffer_size;
 	void		(*drain_pebs)(struct pt_regs *regs);
 	struct event_constraint *pebs_constraints;
 	void		(*pebs_aliases)(struct perf_event *event);
@@ -907,6 +908,8 @@ void intel_pmu_lbr_init_hsw(void);
 
 void intel_pmu_lbr_init_skl(void);
 
+void intel_pmu_pebs_data_source_nhm(void);
+
 int intel_pmu_setup_lbr_filter(struct perf_event *event);
 
 void intel_pt_interrupt(void);
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kernel/cpu/perf_event_intel.c linux-libre-4.4.107-gnu/arch/x86/kernel/cpu/perf_event_intel.c
--- linux-libre-4.4-gnu/arch/x86/kernel/cpu/perf_event_intel.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/kernel/cpu/perf_event_intel.c	2017-12-20 04:05:01.000000000 -0500
@@ -1458,7 +1458,15 @@ static __initconst const u64 slm_hw_cach
 };
 
 /*
- * Use from PMIs where the LBRs are already disabled.
+ * Used from PMIs where the LBRs are already disabled.
+ *
+ * This function could be called consecutively. It is required to remain in
+ * disabled state if called consecutively.
+ *
+ * During consecutive calls, the same disable value will be written to related
+ * registers, so the PMU state remains unchanged. hw.state in
+ * intel_bts_disable_local will remain PERF_HES_STOPPED too in consecutive
+ * calls.
  */
 static void __intel_pmu_disable_all(void)
 {
@@ -1840,6 +1848,16 @@ again:
 	if (__test_and_clear_bit(62, (unsigned long *)&status)) {
 		handled++;
 		x86_pmu.drain_pebs(regs);
+		/*
+		 * There are cases where, even though, the PEBS ovfl bit is set
+		 * in GLOBAL_OVF_STATUS, the PEBS events may also have their
+		 * overflow bits set for their counters. We must clear them
+		 * here because they have been processed as exact samples in
+		 * the drain_pebs() routine. They must not be processed again
+		 * in the for_each_bit_set() loop for regular samples below.
+		 */
+		status &= ~cpuc->pebs_enabled;
+		status &= x86_pmu.intel_ctrl | GLOBAL_STATUS_TRACE_TOPAPMI;
 	}
 
 	/*
@@ -1885,7 +1903,10 @@ again:
 		goto again;
 
 done:
-	__intel_pmu_enable_all(0, true);
+	/* Only restore PMU state when it's active. See x86_pmu_disable(). */
+	if (cpuc->enabled)
+		__intel_pmu_enable_all(0, true);
+
 	/*
 	 * Only unmask the NMI after the overflow counters
 	 * have been reset. This avoids spurious NMIs on
@@ -3315,6 +3336,7 @@ __init int intel_pmu_init(void)
 		intel_perfmon_event_map[PERF_COUNT_HW_STALLED_CYCLES_BACKEND] =
 			X86_CONFIG(.event=0xb1, .umask=0x3f, .inv=1, .cmask=1);
 
+		intel_pmu_pebs_data_source_nhm();
 		x86_add_quirk(intel_nehalem_quirk);
 
 		pr_cont("Nehalem events, ");
@@ -3377,6 +3399,7 @@ __init int intel_pmu_init(void)
 		intel_perfmon_event_map[PERF_COUNT_HW_STALLED_CYCLES_BACKEND] =
 			X86_CONFIG(.event=0xb1, .umask=0x3f, .inv=1, .cmask=1);
 
+		intel_pmu_pebs_data_source_nhm();
 		pr_cont("Westmere events, ");
 		break;
 
@@ -3578,7 +3601,7 @@ __init int intel_pmu_init(void)
 				c->idxmsk64 |= (1ULL << x86_pmu.num_counters) - 1;
 			}
 			c->idxmsk64 &=
-				~(~0UL << (INTEL_PMC_IDX_FIXED + x86_pmu.num_counters_fixed));
+				~(~0ULL << (INTEL_PMC_IDX_FIXED + x86_pmu.num_counters_fixed));
 			c->weight = hweight64(c->idxmsk64);
 		}
 	}
@@ -3613,7 +3636,7 @@ __init int intel_pmu_init(void)
 
 	/* Support full width counters using alternative MSR range */
 	if (x86_pmu.intel_cap.full_width_write) {
-		x86_pmu.max_period = x86_pmu.cntval_mask;
+		x86_pmu.max_period = x86_pmu.cntval_mask >> 1;
 		x86_pmu.perfctr = MSR_IA32_PMC0;
 		pr_cont("full-width counters, ");
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kernel/cpu/perf_event_intel_cqm.c linux-libre-4.4.107-gnu/arch/x86/kernel/cpu/perf_event_intel_cqm.c
--- linux-libre-4.4-gnu/arch/x86/kernel/cpu/perf_event_intel_cqm.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/kernel/cpu/perf_event_intel_cqm.c	2017-12-20 04:05:01.000000000 -0500
@@ -211,6 +211,20 @@ static void __put_rmid(u32 rmid)
 	list_add_tail(&entry->list, &cqm_rmid_limbo_lru);
 }
 
+static void cqm_cleanup(void)
+{
+	int i;
+
+	if (!cqm_rmid_ptrs)
+		return;
+
+	for (i = 0; i < cqm_max_rmid; i++)
+		kfree(cqm_rmid_ptrs[i]);
+
+	kfree(cqm_rmid_ptrs);
+	cqm_rmid_ptrs = NULL;
+}
+
 static int intel_cqm_setup_rmid_cache(void)
 {
 	struct cqm_rmid_entry *entry;
@@ -218,7 +232,7 @@ static int intel_cqm_setup_rmid_cache(vo
 	int r = 0;
 
 	nr_rmids = cqm_max_rmid + 1;
-	cqm_rmid_ptrs = kmalloc(sizeof(struct cqm_rmid_entry *) *
+	cqm_rmid_ptrs = kzalloc(sizeof(struct cqm_rmid_entry *) *
 				nr_rmids, GFP_KERNEL);
 	if (!cqm_rmid_ptrs)
 		return -ENOMEM;
@@ -249,11 +263,9 @@ static int intel_cqm_setup_rmid_cache(vo
 	mutex_unlock(&cache_mutex);
 
 	return 0;
-fail:
-	while (r--)
-		kfree(cqm_rmid_ptrs[r]);
 
-	kfree(cqm_rmid_ptrs);
+fail:
+	cqm_cleanup();
 	return -ENOMEM;
 }
 
@@ -281,9 +293,13 @@ static bool __match_event(struct perf_ev
 
 	/*
 	 * Events that target same task are placed into the same cache group.
+	 * Mark it as a multi event group, so that we update ->count
+	 * for every event rather than just the group leader later.
 	 */
-	if (a->hw.target == b->hw.target)
+	if (a->hw.target == b->hw.target) {
+		b->hw.is_group_event = true;
 		return true;
+	}
 
 	/*
 	 * Are we an inherited event?
@@ -849,6 +865,7 @@ static void intel_cqm_setup_event(struct
 	bool conflict = false;
 	u32 rmid;
 
+	event->hw.is_group_event = false;
 	list_for_each_entry(iter, &cache_groups, hw.cqm_groups_entry) {
 		rmid = iter->hw.cqm_rmid;
 
@@ -940,7 +957,9 @@ static u64 intel_cqm_event_count(struct
 		return __perf_event_count(event);
 
 	/*
-	 * Only the group leader gets to report values. This stops us
+	 * Only the group leader gets to report values except in case of
+	 * multiple events in the same group, we still need to read the
+	 * other events.This stops us
 	 * reporting duplicate values to userspace, and gives us a clear
 	 * rule for which task gets to report the values.
 	 *
@@ -948,7 +967,7 @@ static u64 intel_cqm_event_count(struct
 	 * specific packages - we forfeit that ability when we create
 	 * task events.
 	 */
-	if (!cqm_group_leader(event))
+	if (!cqm_group_leader(event) && !event->hw.is_group_event)
 		return 0;
 
 	/*
@@ -1315,7 +1334,7 @@ static const struct x86_cpu_id intel_cqm
 
 static int __init intel_cqm_init(void)
 {
-	char *str, scale[20];
+	char *str = NULL, scale[20];
 	int i, cpu, ret;
 
 	if (!x86_match_cpu(intel_cqm_match))
@@ -1375,16 +1394,25 @@ static int __init intel_cqm_init(void)
 		cqm_pick_event_reader(i);
 	}
 
-	__perf_cpu_notifier(intel_cqm_cpu_notifier);
-
 	ret = perf_pmu_register(&intel_cqm_pmu, "intel_cqm", -1);
-	if (ret)
+	if (ret) {
 		pr_err("Intel CQM perf registration failed: %d\n", ret);
-	else
-		pr_info("Intel CQM monitoring enabled\n");
+		goto out;
+	}
 
+	pr_info("Intel CQM monitoring enabled\n");
+
+	/*
+	 * Register the hot cpu notifier once we are sure cqm
+	 * is enabled to avoid notifier leak.
+	 */
+	__perf_cpu_notifier(intel_cqm_cpu_notifier);
 out:
 	cpu_notifier_register_done();
+	if (ret) {
+		kfree(str);
+		cqm_cleanup();
+	}
 
 	return ret;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kernel/cpu/perf_event_intel_ds.c linux-libre-4.4.107-gnu/arch/x86/kernel/cpu/perf_event_intel_ds.c
--- linux-libre-4.4-gnu/arch/x86/kernel/cpu/perf_event_intel_ds.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/kernel/cpu/perf_event_intel_ds.c	2017-12-20 04:05:01.000000000 -0500
@@ -51,7 +51,8 @@ union intel_x86_pebs_dse {
 #define OP_LH (P(OP, LOAD) | P(LVL, HIT))
 #define SNOOP_NONE_MISS (P(SNOOP, NONE) | P(SNOOP, MISS))
 
-static const u64 pebs_data_source[] = {
+/* Version for Sandy Bridge and later */
+static u64 pebs_data_source[] = {
 	P(OP, LOAD) | P(LVL, MISS) | P(LVL, L3) | P(SNOOP, NA),/* 0x00:ukn L3 */
 	OP_LH | P(LVL, L1)  | P(SNOOP, NONE),	/* 0x01: L1 local */
 	OP_LH | P(LVL, LFB) | P(SNOOP, NONE),	/* 0x02: LFB hit */
@@ -70,6 +71,14 @@ static const u64 pebs_data_source[] = {
 	OP_LH | P(LVL, UNC) | P(SNOOP, NONE), /* 0x0f: uncached */
 };
 
+/* Patch up minor differences in the bits */
+void __init intel_pmu_pebs_data_source_nhm(void)
+{
+	pebs_data_source[0x05] = OP_LH | P(LVL, L3)  | P(SNOOP, HIT);
+	pebs_data_source[0x06] = OP_LH | P(LVL, L3)  | P(SNOOP, HITM);
+	pebs_data_source[0x07] = OP_LH | P(LVL, L3)  | P(SNOOP, HITM);
+}
+
 static u64 precise_store_data(u64 status)
 {
 	union intel_x86_pebs_dse dse;
@@ -269,7 +278,7 @@ static int alloc_pebs_buffer(int cpu)
 	if (!x86_pmu.pebs)
 		return 0;
 
-	buffer = kzalloc_node(PEBS_BUFFER_SIZE, GFP_KERNEL, node);
+	buffer = kzalloc_node(x86_pmu.pebs_buffer_size, GFP_KERNEL, node);
 	if (unlikely(!buffer))
 		return -ENOMEM;
 
@@ -286,7 +295,7 @@ static int alloc_pebs_buffer(int cpu)
 		per_cpu(insn_buffer, cpu) = ibuffer;
 	}
 
-	max = PEBS_BUFFER_SIZE / x86_pmu.pebs_record_size;
+	max = x86_pmu.pebs_buffer_size / x86_pmu.pebs_record_size;
 
 	ds->pebs_buffer_base = (u64)(unsigned long)buffer;
 	ds->pebs_index = ds->pebs_buffer_base;
@@ -1101,6 +1110,13 @@ get_next_pebs_record_by_bit(void *base,
 	void *at;
 	u64 pebs_status;
 
+	/*
+	 * fmt0 does not have a status bitfield (does not use
+	 * perf_record_nhm format)
+	 */
+	if (x86_pmu.intel_cap.pebs_format < 1)
+		return base;
+
 	if (base == NULL)
 		return NULL;
 
@@ -1186,7 +1202,7 @@ static void intel_pmu_drain_pebs_core(st
 	if (!event->attr.precise_ip)
 		return;
 
-	n = (top - at) / x86_pmu.pebs_record_size;
+	n = top - at;
 	if (n <= 0)
 		return;
 
@@ -1296,6 +1312,7 @@ void __init intel_ds_init(void)
 
 	x86_pmu.bts  = boot_cpu_has(X86_FEATURE_BTS);
 	x86_pmu.pebs = boot_cpu_has(X86_FEATURE_PEBS);
+	x86_pmu.pebs_buffer_size = PEBS_BUFFER_SIZE;
 	if (x86_pmu.pebs) {
 		char pebs_type = x86_pmu.intel_cap.pebs_trap ?  '+' : '-';
 		int format = x86_pmu.intel_cap.pebs_format;
@@ -1304,6 +1321,14 @@ void __init intel_ds_init(void)
 		case 0:
 			printk(KERN_CONT "PEBS fmt0%c, ", pebs_type);
 			x86_pmu.pebs_record_size = sizeof(struct pebs_record_core);
+			/*
+			 * Using >PAGE_SIZE buffers makes the WRMSR to
+			 * PERF_GLOBAL_CTRL in intel_pmu_enable_all()
+			 * mysteriously hang on Core2.
+			 *
+			 * As a workaround, we don't do this.
+			 */
+			x86_pmu.pebs_buffer_size = PAGE_SIZE;
 			x86_pmu.drain_pebs = intel_pmu_drain_pebs_core;
 			break;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kernel/cpu/perf_event_intel_lbr.c linux-libre-4.4.107-gnu/arch/x86/kernel/cpu/perf_event_intel_lbr.c
--- linux-libre-4.4-gnu/arch/x86/kernel/cpu/perf_event_intel_lbr.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/kernel/cpu/perf_event_intel_lbr.c	2017-12-20 04:05:01.000000000 -0500
@@ -153,7 +153,7 @@ static void __intel_pmu_lbr_enable(bool
 	 */
 	if (cpuc->lbr_sel)
 		lbr_select = cpuc->lbr_sel->config;
-	if (!pmi)
+	if (!pmi && cpuc->lbr_sel)
 		wrmsrl(MSR_LBR_SELECT, lbr_select);
 
 	rdmsrl(MSR_IA32_DEBUGCTLMSR, debugctl);
@@ -410,6 +410,9 @@ static void intel_pmu_lbr_read_32(struct
 		cpuc->lbr_entries[i].to		= msr_lastbranch.to;
 		cpuc->lbr_entries[i].mispred	= 0;
 		cpuc->lbr_entries[i].predicted	= 0;
+		cpuc->lbr_entries[i].in_tx	= 0;
+		cpuc->lbr_entries[i].abort	= 0;
+		cpuc->lbr_entries[i].cycles	= 0;
 		cpuc->lbr_entries[i].reserved	= 0;
 	}
 	cpuc->lbr_stack.nr = i;
@@ -429,8 +432,10 @@ static void intel_pmu_lbr_read_64(struct
 	int out = 0;
 	int num = x86_pmu.lbr_nr;
 
-	if (cpuc->lbr_sel->config & LBR_CALL_STACK)
-		num = tos;
+	if (cpuc->lbr_sel) {
+		if (cpuc->lbr_sel->config & LBR_CALL_STACK)
+			num = tos;
+	}
 
 	for (i = 0; i < num; i++) {
 		unsigned long lbr_idx = (tos - i) & mask;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kernel/cpu/perf_event_intel_pt.c linux-libre-4.4.107-gnu/arch/x86/kernel/cpu/perf_event_intel_pt.c
--- linux-libre-4.4-gnu/arch/x86/kernel/cpu/perf_event_intel_pt.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/kernel/cpu/perf_event_intel_pt.c	2017-12-20 04:05:01.000000000 -0500
@@ -694,6 +694,7 @@ static int pt_buffer_reset_markers(struc
 
 	/* clear STOP and INT from current entry */
 	buf->topa_index[buf->stop_pos]->stop = 0;
+	buf->topa_index[buf->stop_pos]->intr = 0;
 	buf->topa_index[buf->intr_pos]->intr = 0;
 
 	/* how many pages till the STOP marker */
@@ -718,6 +719,7 @@ static int pt_buffer_reset_markers(struc
 	buf->intr_pos = idx;
 
 	buf->topa_index[buf->stop_pos]->stop = 1;
+	buf->topa_index[buf->stop_pos]->intr = 1;
 	buf->topa_index[buf->intr_pos]->intr = 1;
 
 	return 0;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kernel/cpu/perf_event_knc.c linux-libre-4.4.107-gnu/arch/x86/kernel/cpu/perf_event_knc.c
--- linux-libre-4.4-gnu/arch/x86/kernel/cpu/perf_event_knc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/kernel/cpu/perf_event_knc.c	2017-12-20 04:05:01.000000000 -0500
@@ -263,7 +263,9 @@ again:
 		goto again;
 
 done:
-	knc_pmu_enable_all(0);
+	/* Only restore PMU state when it's active. See x86_pmu_disable(). */
+	if (cpuc->enabled)
+		knc_pmu_enable_all(0);
 
 	return handled;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kernel/e820.c linux-libre-4.4.107-gnu/arch/x86/kernel/e820.c
--- linux-libre-4.4-gnu/arch/x86/kernel/e820.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/kernel/e820.c	2017-12-20 04:05:01.000000000 -0500
@@ -753,7 +753,7 @@ u64 __init early_reserve_e820(u64 size,
 /*
  * Find the highest page frame number we have available
  */
-static unsigned long __init e820_end_pfn(unsigned long limit_pfn)
+static unsigned long __init e820_end_pfn(unsigned long limit_pfn, unsigned type)
 {
 	int i;
 	unsigned long last_pfn = 0;
@@ -764,11 +764,7 @@ static unsigned long __init e820_end_pfn
 		unsigned long start_pfn;
 		unsigned long end_pfn;
 
-		/*
-		 * Persistent memory is accounted as ram for purposes of
-		 * establishing max_pfn and mem_map.
-		 */
-		if (ei->type != E820_RAM && ei->type != E820_PRAM)
+		if (ei->type != type)
 			continue;
 
 		start_pfn = ei->addr >> PAGE_SHIFT;
@@ -793,12 +789,12 @@ static unsigned long __init e820_end_pfn
 }
 unsigned long __init e820_end_of_ram_pfn(void)
 {
-	return e820_end_pfn(MAX_ARCH_PFN);
+	return e820_end_pfn(MAX_ARCH_PFN, E820_RAM);
 }
 
 unsigned long __init e820_end_of_low_ram_pfn(void)
 {
-	return e820_end_pfn(1UL << (32-PAGE_SHIFT));
+	return e820_end_pfn(1UL << (32 - PAGE_SHIFT), E820_RAM);
 }
 
 static void early_panic(char *msg)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kernel/early-quirks.c linux-libre-4.4.107-gnu/arch/x86/kernel/early-quirks.c
--- linux-libre-4.4-gnu/arch/x86/kernel/early-quirks.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/kernel/early-quirks.c	2017-12-20 04:05:01.000000000 -0500
@@ -11,7 +11,11 @@
 
 #include <linux/pci.h>
 #include <linux/acpi.h>
+#include <linux/delay.h>
+#include <linux/dmi.h>
 #include <linux/pci_ids.h>
+#include <linux/bcma/bcma.h>
+#include <linux/bcma/bcma_regs.h>
 #include <drm/i915_drm.h>
 #include <asm/pci-direct.h>
 #include <asm/dma.h>
@@ -21,6 +25,9 @@
 #include <asm/iommu.h>
 #include <asm/gart.h>
 #include <asm/irq_remapping.h>
+#include <asm/early_ioremap.h>
+
+#define dev_err(msg)  pr_err("pci 0000:%02x:%02x.%d: %s", bus, slot, func, msg)
 
 static void __init fix_hypertransport_config(int num, int slot, int func)
 {
@@ -76,6 +83,13 @@ static void __init nvidia_bugs(int num,
 #ifdef CONFIG_ACPI
 #ifdef CONFIG_X86_IO_APIC
 	/*
+	 * Only applies to Nvidia root ports (bus 0) and not to
+	 * Nvidia graphics cards with PCI ports on secondary buses.
+	 */
+	if (num)
+		return;
+
+	/*
 	 * All timer overrides on Nvidia are
 	 * wrong unless HPET is enabled.
 	 * Unfortunately that's not true on many Asus boards.
@@ -317,12 +331,11 @@ static u32 __init i85x_stolen_base(int n
 
 static u32 __init i865_stolen_base(int num, int slot, int func, size_t stolen_size)
 {
-	/*
-	 * FIXME is the graphics stolen memory region
-	 * always at TOUD? Ie. is it always the last
-	 * one to be allocated by the BIOS?
-	 */
-	return read_pci_config_16(0, 0, 0, I865_TOUD) << 16;
+	u16 toud = 0;
+
+	toud = read_pci_config_16(0, 0, 0, I865_TOUD);
+
+	return (phys_addr_t)(toud << 16) + i845_tseg_size();
 }
 
 static size_t __init i830_stolen_size(int num, int slot, int func)
@@ -589,6 +602,61 @@ static void __init force_disable_hpet(in
 #endif
 }
 
+#define BCM4331_MMIO_SIZE	16384
+#define BCM4331_PM_CAP		0x40
+#define bcma_aread32(reg)	ioread32(mmio + 1 * BCMA_CORE_SIZE + reg)
+#define bcma_awrite32(reg, val)	iowrite32(val, mmio + 1 * BCMA_CORE_SIZE + reg)
+
+static void __init apple_airport_reset(int bus, int slot, int func)
+{
+	void __iomem *mmio;
+	u16 pmcsr;
+	u64 addr;
+	int i;
+
+	if (!dmi_match(DMI_SYS_VENDOR, "Apple Inc."))
+		return;
+
+	/* Card may have been put into PCI_D3hot by grub quirk */
+	pmcsr = read_pci_config_16(bus, slot, func, BCM4331_PM_CAP + PCI_PM_CTRL);
+
+	if ((pmcsr & PCI_PM_CTRL_STATE_MASK) != PCI_D0) {
+		pmcsr &= ~PCI_PM_CTRL_STATE_MASK;
+		write_pci_config_16(bus, slot, func, BCM4331_PM_CAP + PCI_PM_CTRL, pmcsr);
+		mdelay(10);
+
+		pmcsr = read_pci_config_16(bus, slot, func, BCM4331_PM_CAP + PCI_PM_CTRL);
+		if ((pmcsr & PCI_PM_CTRL_STATE_MASK) != PCI_D0) {
+			dev_err("Cannot power up Apple AirPort card\n");
+			return;
+		}
+	}
+
+	addr  =      read_pci_config(bus, slot, func, PCI_BASE_ADDRESS_0);
+	addr |= (u64)read_pci_config(bus, slot, func, PCI_BASE_ADDRESS_1) << 32;
+	addr &= PCI_BASE_ADDRESS_MEM_MASK;
+
+	mmio = early_ioremap(addr, BCM4331_MMIO_SIZE);
+	if (!mmio) {
+		dev_err("Cannot iomap Apple AirPort card\n");
+		return;
+	}
+
+	pr_info("Resetting Apple AirPort card (left enabled by EFI)\n");
+
+	for (i = 0; bcma_aread32(BCMA_RESET_ST) && i < 30; i++)
+		udelay(10);
+
+	bcma_awrite32(BCMA_RESET_CTL, BCMA_RESET_CTL_RESET);
+	bcma_aread32(BCMA_RESET_CTL);
+	udelay(1);
+
+	bcma_awrite32(BCMA_RESET_CTL, 0);
+	bcma_aread32(BCMA_RESET_CTL);
+	udelay(10);
+
+	early_iounmap(mmio, BCM4331_MMIO_SIZE);
+}
 
 #define QFLAG_APPLY_ONCE 	0x1
 #define QFLAG_APPLIED		0x2
@@ -602,12 +670,6 @@ struct chipset {
 	void (*f)(int num, int slot, int func);
 };
 
-/*
- * Only works for devices on the root bus. If you add any devices
- * not on bus 0 readd another loop level in early_quirks(). But
- * be careful because at least the Nvidia quirk here relies on
- * only matching on bus 0.
- */
 static struct chipset early_qrk[] __initdata = {
 	{ PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID,
 	  PCI_CLASS_BRIDGE_PCI, PCI_ANY_ID, QFLAG_APPLY_ONCE, nvidia_bugs },
@@ -637,9 +699,13 @@ static struct chipset early_qrk[] __init
 	 */
 	{ PCI_VENDOR_ID_INTEL, 0x0f00,
 		PCI_CLASS_BRIDGE_HOST, PCI_ANY_ID, 0, force_disable_hpet},
+	{ PCI_VENDOR_ID_BROADCOM, 0x4331,
+	  PCI_CLASS_NETWORK_OTHER, PCI_ANY_ID, 0, apple_airport_reset},
 	{}
 };
 
+static void __init early_pci_scan_bus(int bus);
+
 /**
  * check_dev_quirk - apply early quirks to a given PCI device
  * @num: bus number
@@ -648,7 +714,7 @@ static struct chipset early_qrk[] __init
  *
  * Check the vendor & device ID against the early quirks table.
  *
- * If the device is single function, let early_quirks() know so we don't
+ * If the device is single function, let early_pci_scan_bus() know so we don't
  * poke at this device again.
  */
 static int __init check_dev_quirk(int num, int slot, int func)
@@ -657,6 +723,7 @@ static int __init check_dev_quirk(int nu
 	u16 vendor;
 	u16 device;
 	u8 type;
+	u8 sec;
 	int i;
 
 	class = read_pci_config_16(num, slot, func, PCI_CLASS_DEVICE);
@@ -684,25 +751,36 @@ static int __init check_dev_quirk(int nu
 
 	type = read_pci_config_byte(num, slot, func,
 				    PCI_HEADER_TYPE);
+
+	if ((type & 0x7f) == PCI_HEADER_TYPE_BRIDGE) {
+		sec = read_pci_config_byte(num, slot, func, PCI_SECONDARY_BUS);
+		if (sec > num)
+			early_pci_scan_bus(sec);
+	}
+
 	if (!(type & 0x80))
 		return -1;
 
 	return 0;
 }
 
-void __init early_quirks(void)
+static void __init early_pci_scan_bus(int bus)
 {
 	int slot, func;
 
-	if (!early_pci_allowed())
-		return;
-
 	/* Poor man's PCI discovery */
-	/* Only scan the root bus */
 	for (slot = 0; slot < 32; slot++)
 		for (func = 0; func < 8; func++) {
 			/* Only probe function 0 on single fn devices */
-			if (check_dev_quirk(0, slot, func))
+			if (check_dev_quirk(bus, slot, func))
 				break;
 		}
 }
+
+void __init early_quirks(void)
+{
+	if (!early_pci_allowed())
+		return;
+
+	early_pci_scan_bus(0);
+}
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kernel/fpu/init.c linux-libre-4.4.107-gnu/arch/x86/kernel/fpu/init.c
--- linux-libre-4.4-gnu/arch/x86/kernel/fpu/init.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/kernel/fpu/init.c	2017-12-20 04:05:01.000000000 -0500
@@ -96,6 +96,7 @@ static void fpu__init_system_early_gener
  * Boot time FPU feature detection code:
  */
 unsigned int mxcsr_feature_mask __read_mostly = 0xffffffffu;
+EXPORT_SYMBOL_GPL(mxcsr_feature_mask);
 
 static void __init fpu__init_system_mxcsr(void)
 {
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kernel/fpu/regset.c linux-libre-4.4.107-gnu/arch/x86/kernel/fpu/regset.c
--- linux-libre-4.4-gnu/arch/x86/kernel/fpu/regset.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/kernel/fpu/regset.c	2017-12-20 04:05:01.000000000 -0500
@@ -116,6 +116,11 @@ int xstateregs_set(struct task_struct *t
 	xsave = &fpu->state.xsave;
 
 	ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, xsave, 0, -1);
+
+	/* xcomp_bv must be 0 when using uncompacted format */
+	if (!ret && xsave->header.xcomp_bv)
+		ret = -EINVAL;
+
 	/*
 	 * mxcsr reserved bits must be masked to zero for security reasons.
 	 */
@@ -126,6 +131,12 @@ int xstateregs_set(struct task_struct *t
 	 */
 	memset(&xsave->header.reserved, 0, 48);
 
+	/*
+	 * In case of failure, mark all states as init:
+	 */
+	if (ret)
+		fpstate_init(&fpu->state);
+
 	return ret;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kernel/fpu/signal.c linux-libre-4.4.107-gnu/arch/x86/kernel/fpu/signal.c
--- linux-libre-4.4-gnu/arch/x86/kernel/fpu/signal.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/kernel/fpu/signal.c	2017-12-20 04:05:01.000000000 -0500
@@ -309,7 +309,9 @@ static int __fpu__restore_sig(void __use
 		fpu__drop(fpu);
 
 		if (__copy_from_user(&fpu->state.xsave, buf_fx, state_size) ||
-		    __copy_from_user(&env, buf, sizeof(env))) {
+		    __copy_from_user(&env, buf, sizeof(env)) ||
+		    (state_size > offsetof(struct xregs_state, header) &&
+		     fpu->state.xsave.header.xcomp_bv)) {
 			fpstate_init(&fpu->state);
 			err = -1;
 		} else {
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kernel/ftrace.c linux-libre-4.4.107-gnu/arch/x86/kernel/ftrace.c
--- linux-libre-4.4-gnu/arch/x86/kernel/ftrace.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/kernel/ftrace.c	2017-12-20 04:05:01.000000000 -0500
@@ -977,6 +977,18 @@ void prepare_ftrace_return(unsigned long
 	unsigned long return_hooker = (unsigned long)
 				&return_to_handler;
 
+	/*
+	 * When resuming from suspend-to-ram, this function can be indirectly
+	 * called from early CPU startup code while the CPU is in real mode,
+	 * which would fail miserably.  Make sure the stack pointer is a
+	 * virtual address.
+	 *
+	 * This check isn't as accurate as virt_addr_valid(), but it should be
+	 * good enough for this purpose, and it's fast.
+	 */
+	if (unlikely((long)__builtin_frame_address(0) >= 0))
+		return;
+
 	if (unlikely(ftrace_graph_is_dead()))
 		return;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kernel/head_32.S linux-libre-4.4.107-gnu/arch/x86/kernel/head_32.S
--- linux-libre-4.4-gnu/arch/x86/kernel/head_32.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/kernel/head_32.S	2017-12-20 04:05:01.000000000 -0500
@@ -571,7 +571,7 @@ early_idt_handler_common:
 	movl %eax,%ds
 	movl %eax,%es
 
-	cmpl $(__KERNEL_CS),32(%esp)
+	cmpw $(__KERNEL_CS),32(%esp)
 	jne 10f
 
 	leal 28(%esp),%eax	# Pointer to %eip
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kernel/head64.c linux-libre-4.4.107-gnu/arch/x86/kernel/head64.c
--- linux-libre-4.4-gnu/arch/x86/kernel/head64.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/kernel/head64.c	2017-12-20 04:05:01.000000000 -0500
@@ -4,6 +4,7 @@
  *  Copyright (C) 2000 Andrea Arcangeli <andrea@suse.de> SuSE
  */
 
+#define DISABLE_BRANCH_PROFILING
 #include <linux/init.h>
 #include <linux/linkage.h>
 #include <linux/types.h>
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kernel/hpet.c linux-libre-4.4.107-gnu/arch/x86/kernel/hpet.c
--- linux-libre-4.4-gnu/arch/x86/kernel/hpet.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/kernel/hpet.c	2017-12-20 04:05:01.000000000 -0500
@@ -351,8 +351,9 @@ static int hpet_resume(struct clock_even
 	} else {
 		struct hpet_dev *hdev = EVT_TO_HPET_DEV(evt);
 
+		irq_domain_deactivate_irq(irq_get_irq_data(hdev->irq));
 		irq_domain_activate_irq(irq_get_irq_data(hdev->irq));
-		disable_irq(hdev->irq);
+		disable_hardirq(hdev->irq);
 		irq_set_affinity(hdev->irq, cpumask_of(hdev->cpu));
 		enable_irq(hdev->irq);
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kernel/ioport.c linux-libre-4.4.107-gnu/arch/x86/kernel/ioport.c
--- linux-libre-4.4-gnu/arch/x86/kernel/ioport.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/kernel/ioport.c	2017-12-20 04:05:01.000000000 -0500
@@ -96,9 +96,14 @@ asmlinkage long sys_ioperm(unsigned long
 SYSCALL_DEFINE1(iopl, unsigned int, level)
 {
 	struct pt_regs *regs = current_pt_regs();
-	unsigned int old = (regs->flags >> 12) & 3;
 	struct thread_struct *t = &current->thread;
 
+	/*
+	 * Careful: the IOPL bits in regs->flags are undefined under Xen PV
+	 * and changing them has no effect.
+	 */
+	unsigned int old = t->iopl >> X86_EFLAGS_IOPL_BIT;
+
 	if (level > 3)
 		return -EINVAL;
 	/* Trying to gain more privileges? */
@@ -106,8 +111,9 @@ SYSCALL_DEFINE1(iopl, unsigned int, leve
 		if (!capable(CAP_SYS_RAWIO))
 			return -EPERM;
 	}
-	regs->flags = (regs->flags & ~X86_EFLAGS_IOPL) | (level << 12);
-	t->iopl = level << 12;
+	regs->flags = (regs->flags & ~X86_EFLAGS_IOPL) |
+		(level << X86_EFLAGS_IOPL_BIT);
+	t->iopl = level << X86_EFLAGS_IOPL_BIT;
 	set_iopl_mask(t->iopl);
 
 	return 0;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kernel/irq.c linux-libre-4.4.107-gnu/arch/x86/kernel/irq.c
--- linux-libre-4.4-gnu/arch/x86/kernel/irq.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/kernel/irq.c	2017-12-20 04:05:01.000000000 -0500
@@ -462,7 +462,7 @@ void fixup_irqs(void)
 		 * non intr-remapping case, we can't wait till this interrupt
 		 * arrives at this cpu before completing the irq move.
 		 */
-		irq_force_complete_move(irq);
+		irq_force_complete_move(desc);
 
 		if (cpumask_any_and(affinity, cpu_online_mask) >= nr_cpu_ids) {
 			break_affinity = 1;
@@ -470,6 +470,15 @@ void fixup_irqs(void)
 		}
 
 		chip = irq_data_get_irq_chip(data);
+		/*
+		 * The interrupt descriptor might have been cleaned up
+		 * already, but it is not yet removed from the radix tree
+		 */
+		if (!chip) {
+			raw_spin_unlock(&desc->lock);
+			continue;
+		}
+
 		if (!irqd_can_move_in_process_context(data) && chip->irq_mask)
 			chip->irq_mask(data);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kernel/kprobes/common.h linux-libre-4.4.107-gnu/arch/x86/kernel/kprobes/common.h
--- linux-libre-4.4-gnu/arch/x86/kernel/kprobes/common.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/kernel/kprobes/common.h	2017-12-20 04:05:01.000000000 -0500
@@ -67,7 +67,7 @@
 #endif
 
 /* Ensure if the instruction can be boostable */
-extern int can_boost(kprobe_opcode_t *instruction);
+extern int can_boost(kprobe_opcode_t *instruction, void *addr);
 /* Recover instruction if given address is probed */
 extern unsigned long recover_probed_instruction(kprobe_opcode_t *buf,
 					 unsigned long addr);
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kernel/kprobes/core.c linux-libre-4.4.107-gnu/arch/x86/kernel/kprobes/core.c
--- linux-libre-4.4-gnu/arch/x86/kernel/kprobes/core.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/kernel/kprobes/core.c	2017-12-20 04:05:01.000000000 -0500
@@ -163,12 +163,12 @@ NOKPROBE_SYMBOL(skip_prefixes);
  * Returns non-zero if opcode is boostable.
  * RIP relative instructions are adjusted at copying time in 64 bits mode
  */
-int can_boost(kprobe_opcode_t *opcodes)
+int can_boost(kprobe_opcode_t *opcodes, void *addr)
 {
 	kprobe_opcode_t opcode;
 	kprobe_opcode_t *orig_opcodes = opcodes;
 
-	if (search_exception_tables((unsigned long)opcodes))
+	if (search_exception_tables((unsigned long)addr))
 		return 0;	/* Page fault may occur on this address. */
 
 retry:
@@ -413,7 +413,7 @@ static int arch_copy_kprobe(struct kprob
 	 * __copy_instruction can modify the displacement of the instruction,
 	 * but it doesn't affect boostable check.
 	 */
-	if (can_boost(p->ainsn.insn))
+	if (can_boost(p->ainsn.insn, p->addr))
 		p->ainsn.boostable = 0;
 	else
 		p->ainsn.boostable = -1;
@@ -959,7 +959,19 @@ int kprobe_fault_handler(struct pt_regs
 		 * normal page fault.
 		 */
 		regs->ip = (unsigned long)cur->addr;
+		/*
+		 * Trap flag (TF) has been set here because this fault
+		 * happened where the single stepping will be done.
+		 * So clear it by resetting the current kprobe:
+		 */
+		regs->flags &= ~X86_EFLAGS_TF;
+
+		/*
+		 * If the TF flag was set before the kprobe hit,
+		 * don't touch it:
+		 */
 		regs->flags |= kcb->kprobe_old_flags;
+
 		if (kcb->kprobe_status == KPROBE_REENTER)
 			restore_previous_kprobe(kcb);
 		else
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kernel/kprobes/ftrace.c linux-libre-4.4.107-gnu/arch/x86/kernel/kprobes/ftrace.c
--- linux-libre-4.4-gnu/arch/x86/kernel/kprobes/ftrace.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/kernel/kprobes/ftrace.c	2017-12-20 04:05:01.000000000 -0500
@@ -26,7 +26,7 @@
 #include "common.h"
 
 static nokprobe_inline
-int __skip_singlestep(struct kprobe *p, struct pt_regs *regs,
+void __skip_singlestep(struct kprobe *p, struct pt_regs *regs,
 		      struct kprobe_ctlblk *kcb, unsigned long orig_ip)
 {
 	/*
@@ -41,20 +41,21 @@ int __skip_singlestep(struct kprobe *p,
 	__this_cpu_write(current_kprobe, NULL);
 	if (orig_ip)
 		regs->ip = orig_ip;
-	return 1;
 }
 
 int skip_singlestep(struct kprobe *p, struct pt_regs *regs,
 		    struct kprobe_ctlblk *kcb)
 {
-	if (kprobe_ftrace(p))
-		return __skip_singlestep(p, regs, kcb, 0);
-	else
-		return 0;
+	if (kprobe_ftrace(p)) {
+		__skip_singlestep(p, regs, kcb, 0);
+		preempt_enable_no_resched();
+		return 1;
+	}
+	return 0;
 }
 NOKPROBE_SYMBOL(skip_singlestep);
 
-/* Ftrace callback handler for kprobes */
+/* Ftrace callback handler for kprobes -- called under preepmt disabed */
 void kprobe_ftrace_handler(unsigned long ip, unsigned long parent_ip,
 			   struct ftrace_ops *ops, struct pt_regs *regs)
 {
@@ -77,13 +78,17 @@ void kprobe_ftrace_handler(unsigned long
 		/* Kprobe handler expects regs->ip = ip + 1 as breakpoint hit */
 		regs->ip = ip + sizeof(kprobe_opcode_t);
 
+		/* To emulate trap based kprobes, preempt_disable here */
+		preempt_disable();
 		__this_cpu_write(current_kprobe, p);
 		kcb->kprobe_status = KPROBE_HIT_ACTIVE;
-		if (!p->pre_handler || !p->pre_handler(p, regs))
+		if (!p->pre_handler || !p->pre_handler(p, regs)) {
 			__skip_singlestep(p, regs, kcb, orig_ip);
+			preempt_enable_no_resched();
+		}
 		/*
 		 * If pre_handler returns !0, it sets regs->ip and
-		 * resets current kprobe.
+		 * resets current kprobe, and keep preempt count +1.
 		 */
 	}
 end:
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kernel/kprobes/opt.c linux-libre-4.4.107-gnu/arch/x86/kernel/kprobes/opt.c
--- linux-libre-4.4-gnu/arch/x86/kernel/kprobes/opt.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/kernel/kprobes/opt.c	2017-12-20 04:05:01.000000000 -0500
@@ -177,7 +177,7 @@ static int copy_optimized_instructions(u
 
 	while (len < RELATIVEJUMP_SIZE) {
 		ret = __copy_instruction(dest + len, src + len);
-		if (!ret || !can_boost(dest + len))
+		if (!ret || !can_boost(dest + len, src + len))
 			return -EINVAL;
 		len += ret;
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kernel/kvm.c linux-libre-4.4.107-gnu/arch/x86/kernel/kvm.c
--- linux-libre-4.4-gnu/arch/x86/kernel/kvm.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/kernel/kvm.c	2017-12-20 04:05:01.000000000 -0500
@@ -151,6 +151,8 @@ void kvm_async_pf_task_wait(u32 token)
 		if (hlist_unhashed(&n.link))
 			break;
 
+		rcu_irq_exit();
+
 		if (!n.halted) {
 			local_irq_enable();
 			schedule();
@@ -159,11 +161,11 @@ void kvm_async_pf_task_wait(u32 token)
 			/*
 			 * We cannot reschedule. So halt.
 			 */
-			rcu_irq_exit();
 			native_safe_halt();
-			rcu_irq_enter();
 			local_irq_disable();
 		}
+
+		rcu_irq_enter();
 	}
 	if (!n.halted)
 		finish_wait(&n.wq, &wait);
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kernel/ldt.c linux-libre-4.4.107-gnu/arch/x86/kernel/ldt.c
--- linux-libre-4.4-gnu/arch/x86/kernel/ldt.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/kernel/ldt.c	2017-12-20 04:05:01.000000000 -0500
@@ -12,6 +12,7 @@
 #include <linux/string.h>
 #include <linux/mm.h>
 #include <linux/smp.h>
+#include <linux/syscalls.h>
 #include <linux/slab.h>
 #include <linux/vmalloc.h>
 #include <linux/uaccess.h>
@@ -271,8 +272,8 @@ out:
 	return error;
 }
 
-asmlinkage int sys_modify_ldt(int func, void __user *ptr,
-			      unsigned long bytecount)
+SYSCALL_DEFINE3(modify_ldt, int , func , void __user * , ptr ,
+		unsigned long , bytecount)
 {
 	int ret = -ENOSYS;
 
@@ -290,5 +291,14 @@ asmlinkage int sys_modify_ldt(int func,
 		ret = write_ldt(ptr, bytecount, 0);
 		break;
 	}
-	return ret;
+	/*
+	 * The SYSCALL_DEFINE() macros give us an 'unsigned long'
+	 * return type, but tht ABI for sys_modify_ldt() expects
+	 * 'int'.  This cast gives us an int-sized value in %rax
+	 * for the return code.  The 'unsigned' is necessary so
+	 * the compiler does not try to sign-extend the negative
+	 * return codes into the high half of the register when
+	 * taking the value from int->long.
+	 */
+	return (unsigned int)ret;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kernel/mcount_64.S linux-libre-4.4.107-gnu/arch/x86/kernel/mcount_64.S
--- linux-libre-4.4-gnu/arch/x86/kernel/mcount_64.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/kernel/mcount_64.S	2017-12-20 04:05:01.000000000 -0500
@@ -180,7 +180,8 @@ GLOBAL(ftrace_graph_call)
 	jmp ftrace_stub
 #endif
 
-GLOBAL(ftrace_stub)
+/* This is weak to keep gas from relaxing the jumps */
+WEAK(ftrace_stub)
 	retq
 END(ftrace_caller)
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kernel/paravirt.c linux-libre-4.4.107-gnu/arch/x86/kernel/paravirt.c
--- linux-libre-4.4-gnu/arch/x86/kernel/paravirt.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/kernel/paravirt.c	2017-12-20 04:05:01.000000000 -0500
@@ -55,12 +55,12 @@ asm (".pushsection .entry.text, \"ax\"\n
      ".popsection");
 
 /* identity function, which can be inlined */
-u32 _paravirt_ident_32(u32 x)
+u32 notrace _paravirt_ident_32(u32 x)
 {
 	return x;
 }
 
-u64 _paravirt_ident_64(u64 x)
+u64 notrace _paravirt_ident_64(u64 x)
 {
 	return x;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kernel/pci-calgary_64.c linux-libre-4.4.107-gnu/arch/x86/kernel/pci-calgary_64.c
--- linux-libre-4.4-gnu/arch/x86/kernel/pci-calgary_64.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/kernel/pci-calgary_64.c	2017-12-20 04:05:01.000000000 -0500
@@ -296,7 +296,7 @@ static void iommu_free(struct iommu_tabl
 
 	/* were we called with bad_dma_address? */
 	badend = DMA_ERROR_CODE + (EMERGENCY_PAGES * PAGE_SIZE);
-	if (unlikely((dma_addr >= DMA_ERROR_CODE) && (dma_addr < badend))) {
+	if (unlikely(dma_addr < badend)) {
 		WARN(1, KERN_ERR "Calgary: driver tried unmapping bad DMA "
 		       "address 0x%Lx\n", dma_addr);
 		return;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kernel/process_64.c linux-libre-4.4.107-gnu/arch/x86/kernel/process_64.c
--- linux-libre-4.4-gnu/arch/x86/kernel/process_64.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/kernel/process_64.c	2017-12-20 04:05:01.000000000 -0500
@@ -48,6 +48,7 @@
 #include <asm/syscalls.h>
 #include <asm/debugreg.h>
 #include <asm/switch_to.h>
+#include <asm/xen/hypervisor.h>
 
 asmlinkage extern void ret_from_fork(void);
 
@@ -411,6 +412,17 @@ __switch_to(struct task_struct *prev_p,
 		     task_thread_info(prev_p)->flags & _TIF_WORK_CTXSW_PREV))
 		__switch_to_xtra(prev_p, next_p, tss);
 
+#ifdef CONFIG_XEN
+	/*
+	 * On Xen PV, IOPL bits in pt_regs->flags have no effect, and
+	 * current_pt_regs()->flags may not match the current task's
+	 * intended IOPL.  We need to switch it manually.
+	 */
+	if (unlikely(static_cpu_has(X86_FEATURE_XENPV) &&
+		     prev->iopl != next->iopl))
+		xen_set_iopl_mask(next->iopl);
+#endif
+
 	if (static_cpu_has_bug(X86_BUG_SYSRET_SS_ATTRS)) {
 		/*
 		 * AMD CPUs have a misfeature: SYSRET sets the SS selector but
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kernel/ptrace.c linux-libre-4.4.107-gnu/arch/x86/kernel/ptrace.c
--- linux-libre-4.4-gnu/arch/x86/kernel/ptrace.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/kernel/ptrace.c	2017-12-20 04:05:01.000000000 -0500
@@ -188,8 +188,8 @@ unsigned long kernel_stack_pointer(struc
 		return sp;
 
 	prev_esp = (u32 *)(context);
-	if (prev_esp)
-		return (unsigned long)prev_esp;
+	if (*prev_esp)
+		return (unsigned long)*prev_esp;
 
 	return (unsigned long)regs;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kernel/pvclock.c linux-libre-4.4.107-gnu/arch/x86/kernel/pvclock.c
--- linux-libre-4.4-gnu/arch/x86/kernel/pvclock.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/kernel/pvclock.c	2017-12-20 04:05:01.000000000 -0500
@@ -66,6 +66,8 @@ u8 pvclock_read_flags(struct pvclock_vcp
 
 	do {
 		version = __pvclock_read_cycles(src, &ret, &flags);
+		/* Make sure that the version double-check is last. */
+		smp_rmb();
 	} while ((src->version & 1) || version != src->version);
 
 	return flags & valid_flags;
@@ -80,6 +82,8 @@ cycle_t pvclock_clocksource_read(struct
 
 	do {
 		version = __pvclock_read_cycles(src, &ret, &flags);
+		/* Make sure that the version double-check is last. */
+		smp_rmb();
 	} while ((src->version & 1) || version != src->version);
 
 	if (unlikely((flags & PVCLOCK_GUEST_STOPPED) != 0)) {
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kernel/reboot.c linux-libre-4.4.107-gnu/arch/x86/kernel/reboot.c
--- linux-libre-4.4-gnu/arch/x86/kernel/reboot.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/kernel/reboot.c	2017-12-20 04:05:01.000000000 -0500
@@ -182,6 +182,14 @@ static struct dmi_system_id __initdata r
 			DMI_MATCH(DMI_PRODUCT_NAME, "iMac9,1"),
 		},
 	},
+	{	/* Handle problems with rebooting on the iMac10,1. */
+		.callback = set_pci_reboot,
+		.ident = "Apple iMac10,1",
+		.matches = {
+		    DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."),
+		    DMI_MATCH(DMI_PRODUCT_NAME, "iMac10,1"),
+		},
+	},
 
 	/* ASRock */
 	{	/* Handle problems with rebooting on ASRock Q1900DC-ITX */
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kernel/setup.c linux-libre-4.4.107-gnu/arch/x86/kernel/setup.c
--- linux-libre-4.4-gnu/arch/x86/kernel/setup.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/kernel/setup.c	2017-12-20 04:05:01.000000000 -0500
@@ -1048,6 +1048,13 @@ void __init setup_arch(char **cmdline_p)
 	if (mtrr_trim_uncached_memory(max_pfn))
 		max_pfn = e820_end_of_ram_pfn();
 
+	/*
+	 * This call is required when the CPU does not support PAT. If
+	 * mtrr_bp_init() invoked it already via pat_init() the call has no
+	 * effect.
+	 */
+	init_cache_modes();
+
 #ifdef CONFIG_X86_32
 	/* max_low_pfn get updated here */
 	find_low_pfn_range();
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kernel/sysfb_efi.c linux-libre-4.4.107-gnu/arch/x86/kernel/sysfb_efi.c
--- linux-libre-4.4-gnu/arch/x86/kernel/sysfb_efi.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/kernel/sysfb_efi.c	2017-12-20 04:05:01.000000000 -0500
@@ -106,14 +106,24 @@ static int __init efifb_set_system(const
 					continue;
 				for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) {
 					resource_size_t start, end;
+					unsigned long flags;
+
+					flags = pci_resource_flags(dev, i);
+					if (!(flags & IORESOURCE_MEM))
+						continue;
+
+					if (flags & IORESOURCE_UNSET)
+						continue;
+
+					if (pci_resource_len(dev, i) == 0)
+						continue;
 
 					start = pci_resource_start(dev, i);
-					if (start == 0)
-						break;
 					end = pci_resource_end(dev, i);
 					if (screen_info.lfb_base >= start &&
 					    screen_info.lfb_base < end) {
 						found_bar = 1;
+						break;
 					}
 				}
 			}
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kernel/sys_x86_64.c linux-libre-4.4.107-gnu/arch/x86/kernel/sys_x86_64.c
--- linux-libre-4.4-gnu/arch/x86/kernel/sys_x86_64.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/kernel/sys_x86_64.c	2017-12-20 04:05:01.000000000 -0500
@@ -143,7 +143,7 @@ arch_get_unmapped_area(struct file *filp
 		addr = PAGE_ALIGN(addr);
 		vma = find_vma(mm, addr);
 		if (end - len >= addr &&
-		    (!vma || addr + len <= vma->vm_start))
+		    (!vma || addr + len <= vm_start_gap(vma)))
 			return addr;
 	}
 
@@ -186,7 +186,7 @@ arch_get_unmapped_area_topdown(struct fi
 		addr = PAGE_ALIGN(addr);
 		vma = find_vma(mm, addr);
 		if (TASK_SIZE - len >= addr &&
-				(!vma || addr + len <= vma->vm_start))
+				(!vma || addr + len <= vm_start_gap(vma)))
 			return addr;
 	}
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kernel/traps.c linux-libre-4.4.107-gnu/arch/x86/kernel/traps.c
--- linux-libre-4.4-gnu/arch/x86/kernel/traps.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/kernel/traps.c	2017-12-20 04:05:01.000000000 -0500
@@ -109,6 +109,12 @@ static inline void preempt_conditional_c
 	preempt_count_dec();
 }
 
+/*
+ * In IST context, we explicitly disable preemption.  This serves two
+ * purposes: it makes it much less likely that we would accidentally
+ * schedule in IST context and it will force a warning if we somehow
+ * manage to schedule by accident.
+ */
 void ist_enter(struct pt_regs *regs)
 {
 	if (user_mode(regs)) {
@@ -123,13 +129,7 @@ void ist_enter(struct pt_regs *regs)
 		rcu_nmi_enter();
 	}
 
-	/*
-	 * We are atomic because we're on the IST stack; or we're on
-	 * x86_32, in which case we still shouldn't schedule; or we're
-	 * on x86_64 and entered from user mode, in which case we're
-	 * still atomic unless ist_begin_non_atomic is called.
-	 */
-	preempt_count_add(HARDIRQ_OFFSET);
+	preempt_disable();
 
 	/* This code is a bit fragile.  Test it. */
 	RCU_LOCKDEP_WARN(!rcu_is_watching(), "ist_enter didn't work");
@@ -137,7 +137,7 @@ void ist_enter(struct pt_regs *regs)
 
 void ist_exit(struct pt_regs *regs)
 {
-	preempt_count_sub(HARDIRQ_OFFSET);
+	preempt_enable_no_resched();
 
 	if (!user_mode(regs))
 		rcu_nmi_exit();
@@ -168,7 +168,7 @@ void ist_begin_non_atomic(struct pt_regs
 	BUG_ON((unsigned long)(current_top_of_stack() -
 			       current_stack_pointer()) >= THREAD_SIZE);
 
-	preempt_count_sub(HARDIRQ_OFFSET);
+	preempt_enable_no_resched();
 }
 
 /**
@@ -178,7 +178,7 @@ void ist_begin_non_atomic(struct pt_regs
  */
 void ist_end_non_atomic(void)
 {
-	preempt_count_add(HARDIRQ_OFFSET);
+	preempt_disable();
 }
 
 static nokprobe_inline int
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kernel/tsc_msr.c linux-libre-4.4.107-gnu/arch/x86/kernel/tsc_msr.c
--- linux-libre-4.4-gnu/arch/x86/kernel/tsc_msr.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/kernel/tsc_msr.c	2017-12-20 04:05:01.000000000 -0500
@@ -92,7 +92,7 @@ unsigned long try_msr_calibrate_tsc(void
 
 	if (freq_desc_tables[cpu_index].msr_plat) {
 		rdmsr(MSR_PLATFORM_INFO, lo, hi);
-		ratio = (lo >> 8) & 0x1f;
+		ratio = (lo >> 8) & 0xff;
 	} else {
 		rdmsr(MSR_IA32_PERF_STATUS, lo, hi);
 		ratio = (hi >> 8) & 0x1f;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kernel/uprobes.c linux-libre-4.4.107-gnu/arch/x86/kernel/uprobes.c
--- linux-libre-4.4-gnu/arch/x86/kernel/uprobes.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/kernel/uprobes.c	2017-12-20 04:05:01.000000000 -0500
@@ -357,20 +357,22 @@ static void riprel_analyze(struct arch_u
 		*cursor &= 0xfe;
 	}
 	/*
-	 * Similar treatment for VEX3 prefix.
-	 * TODO: add XOP/EVEX treatment when insn decoder supports them
+	 * Similar treatment for VEX3/EVEX prefix.
+	 * TODO: add XOP treatment when insn decoder supports them
 	 */
-	if (insn->vex_prefix.nbytes == 3) {
+	if (insn->vex_prefix.nbytes >= 3) {
 		/*
 		 * vex2:     c5    rvvvvLpp   (has no b bit)
 		 * vex3/xop: c4/8f rxbmmmmm wvvvvLpp
 		 * evex:     62    rxbR00mm wvvvv1pp zllBVaaa
-		 *   (evex will need setting of both b and x since
-		 *   in non-sib encoding evex.x is 4th bit of MODRM.rm)
-		 * Setting VEX3.b (setting because it has inverted meaning):
+		 * Setting VEX3.b (setting because it has inverted meaning).
+		 * Setting EVEX.x since (in non-SIB encoding) EVEX.x
+		 * is the 4th bit of MODRM.rm, and needs the same treatment.
+		 * For VEX3-encoded insns, VEX3.x value has no effect in
+		 * non-SIB encoding, the change is superfluous but harmless.
 		 */
 		cursor = auprobe->insn + insn_offset_vex_prefix(insn) + 1;
-		*cursor |= 0x20;
+		*cursor |= 0x60;
 	}
 
 	/*
@@ -415,12 +417,10 @@ static void riprel_analyze(struct arch_u
 
 	reg = MODRM_REG(insn);	/* Fetch modrm.reg */
 	reg2 = 0xff;		/* Fetch vex.vvvv */
-	if (insn->vex_prefix.nbytes == 2)
-		reg2 = insn->vex_prefix.bytes[1];
-	else if (insn->vex_prefix.nbytes == 3)
+	if (insn->vex_prefix.nbytes)
 		reg2 = insn->vex_prefix.bytes[2];
 	/*
-	 * TODO: add XOP, EXEV vvvv reading.
+	 * TODO: add XOP vvvv reading.
 	 *
 	 * vex.vvvv field is in bits 6-3, bits are inverted.
 	 * But in 32-bit mode, high-order bit may be ignored.
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kvm/cpuid.c linux-libre-4.4.107-gnu/arch/x86/kvm/cpuid.c
--- linux-libre-4.4-gnu/arch/x86/kvm/cpuid.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/kvm/cpuid.c	2017-12-20 04:05:01.000000000 -0500
@@ -46,11 +46,18 @@ static u32 xstate_required_size(u64 xsta
 	return ret;
 }
 
+bool kvm_mpx_supported(void)
+{
+	return ((host_xcr0 & (XFEATURE_MASK_BNDREGS | XFEATURE_MASK_BNDCSR))
+		 && kvm_x86_ops->mpx_supported());
+}
+EXPORT_SYMBOL_GPL(kvm_mpx_supported);
+
 u64 kvm_supported_xcr0(void)
 {
 	u64 xcr0 = KVM_SUPPORTED_XCR0 & host_xcr0;
 
-	if (!kvm_x86_ops->mpx_supported())
+	if (!kvm_mpx_supported())
 		xcr0 &= ~(XFEATURE_MASK_BNDREGS | XFEATURE_MASK_BNDCSR);
 
 	return xcr0;
@@ -97,7 +104,7 @@ int kvm_update_cpuid(struct kvm_vcpu *vc
 	if (best && (best->eax & (F(XSAVES) | F(XSAVEC))))
 		best->ebx = xstate_required_size(vcpu->arch.xcr0, true);
 
-	vcpu->arch.eager_fpu = use_eager_fpu() || guest_cpuid_has_mpx(vcpu);
+	vcpu->arch.eager_fpu = use_eager_fpu();
 	if (vcpu->arch.eager_fpu)
 		kvm_x86_ops->fpu_activate(vcpu);
 
@@ -295,7 +302,7 @@ static inline int __do_cpuid_ent(struct
 #endif
 	unsigned f_rdtscp = kvm_x86_ops->rdtscp_supported() ? F(RDTSCP) : 0;
 	unsigned f_invpcid = kvm_x86_ops->invpcid_supported() ? F(INVPCID) : 0;
-	unsigned f_mpx = kvm_x86_ops->mpx_supported() ? F(MPX) : 0;
+	unsigned f_mpx = kvm_mpx_supported() ? F(MPX) : 0;
 	unsigned f_xsaves = kvm_x86_ops->xsaves_supported() ? F(XSAVES) : 0;
 
 	/* cpuid 1.edx */
@@ -509,6 +516,7 @@ static inline int __do_cpuid_ent(struct
 			do_cpuid_1_ent(&entry[i], function, idx);
 			if (idx == 1) {
 				entry[i].eax &= kvm_supported_word10_x86_features;
+				cpuid_mask(&entry[i].eax, 10);
 				entry[i].ebx = 0;
 				if (entry[i].eax & (F(XSAVES)|F(XSAVEC)))
 					entry[i].ebx =
@@ -736,18 +744,20 @@ out:
 static int move_to_next_stateful_cpuid_entry(struct kvm_vcpu *vcpu, int i)
 {
 	struct kvm_cpuid_entry2 *e = &vcpu->arch.cpuid_entries[i];
-	int j, nent = vcpu->arch.cpuid_nent;
+	struct kvm_cpuid_entry2 *ej;
+	int j = i;
+	int nent = vcpu->arch.cpuid_nent;
 
 	e->flags &= ~KVM_CPUID_FLAG_STATE_READ_NEXT;
 	/* when no next entry is found, the current entry[i] is reselected */
-	for (j = i + 1; ; j = (j + 1) % nent) {
-		struct kvm_cpuid_entry2 *ej = &vcpu->arch.cpuid_entries[j];
-		if (ej->function == e->function) {
-			ej->flags |= KVM_CPUID_FLAG_STATE_READ_NEXT;
-			return j;
-		}
-	}
-	return 0; /* silence gcc, even though control never reaches here */
+	do {
+		j = (j + 1) % nent;
+		ej = &vcpu->arch.cpuid_entries[j];
+	} while (ej->function != e->function);
+
+	ej->flags |= KVM_CPUID_FLAG_STATE_READ_NEXT;
+
+	return j;
 }
 
 /* find an entry with matching function, matching index (if needed), and that
@@ -817,12 +827,6 @@ void kvm_cpuid(struct kvm_vcpu *vcpu, u3
 	if (!best)
 		best = check_cpuid_limit(vcpu, function, index);
 
-	/*
-	 * Perfmon not yet supported for L2 guest.
-	 */
-	if (is_guest_mode(vcpu) && function == 0xa)
-		best = NULL;
-
 	if (best) {
 		*eax = best->eax;
 		*ebx = best->ebx;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kvm/cpuid.h linux-libre-4.4.107-gnu/arch/x86/kvm/cpuid.h
--- linux-libre-4.4-gnu/arch/x86/kvm/cpuid.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/kvm/cpuid.h	2017-12-20 04:05:01.000000000 -0500
@@ -4,6 +4,7 @@
 #include "x86.h"
 
 int kvm_update_cpuid(struct kvm_vcpu *vcpu);
+bool kvm_mpx_supported(void);
 struct kvm_cpuid_entry2 *kvm_find_cpuid_entry(struct kvm_vcpu *vcpu,
 					      u32 function, u32 index);
 int kvm_dev_ioctl_get_cpuid(struct kvm_cpuid2 *cpuid,
@@ -134,20 +135,20 @@ static inline bool guest_cpuid_has_rtm(s
 	return best && (best->ebx & bit(X86_FEATURE_RTM));
 }
 
-static inline bool guest_cpuid_has_mpx(struct kvm_vcpu *vcpu)
+static inline bool guest_cpuid_has_pcommit(struct kvm_vcpu *vcpu)
 {
 	struct kvm_cpuid_entry2 *best;
 
 	best = kvm_find_cpuid_entry(vcpu, 7, 0);
-	return best && (best->ebx & bit(X86_FEATURE_MPX));
+	return best && (best->ebx & bit(X86_FEATURE_PCOMMIT));
 }
 
-static inline bool guest_cpuid_has_pcommit(struct kvm_vcpu *vcpu)
+static inline bool guest_cpuid_has_mpx(struct kvm_vcpu *vcpu)
 {
 	struct kvm_cpuid_entry2 *best;
 
 	best = kvm_find_cpuid_entry(vcpu, 7, 0);
-	return best && (best->ebx & bit(X86_FEATURE_PCOMMIT));
+	return best && (best->ebx & bit(X86_FEATURE_MPX));
 }
 
 static inline bool guest_cpuid_has_rdtscp(struct kvm_vcpu *vcpu)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kvm/emulate.c linux-libre-4.4.107-gnu/arch/x86/kvm/emulate.c
--- linux-libre-4.4-gnu/arch/x86/kvm/emulate.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/kvm/emulate.c	2017-12-20 04:05:01.000000000 -0500
@@ -172,6 +172,7 @@
 #define NearBranch  ((u64)1 << 52)  /* Near branches */
 #define No16	    ((u64)1 << 53)  /* No 16 bit operand */
 #define IncSP       ((u64)1 << 54)  /* SP is incremented before ModRM calc */
+#define Aligned16   ((u64)1 << 55)  /* Aligned to 16 byte boundary (e.g. FXSAVE) */
 
 #define DstXacc     (DstAccLo | SrcAccHi | SrcWrite)
 
@@ -434,6 +435,26 @@ FOP_END;
 FOP_START(salc) "pushf; sbb %al, %al; popf \n\t" FOP_RET
 FOP_END;
 
+/*
+ * XXX: inoutclob user must know where the argument is being expanded.
+ *      Relying on CC_HAVE_ASM_GOTO would allow us to remove _fault.
+ */
+#define asm_safe(insn, inoutclob...) \
+({ \
+	int _fault = 0; \
+ \
+	asm volatile("1:" insn "\n" \
+	             "2:\n" \
+	             ".pushsection .fixup, \"ax\"\n" \
+	             "3: movl $1, %[_fault]\n" \
+	             "   jmp  2b\n" \
+	             ".popsection\n" \
+	             _ASM_EXTABLE(1b, 3b) \
+	             : [_fault] "+qm"(_fault) inoutclob ); \
+ \
+	_fault ? X86EMUL_UNHANDLEABLE : X86EMUL_CONTINUE; \
+})
+
 static int emulator_check_intercept(struct x86_emulate_ctxt *ctxt,
 				    enum x86_intercept intercept,
 				    enum x86_intercept_stage stage)
@@ -620,21 +641,24 @@ static void set_segment_selector(struct
  * depending on whether they're AVX encoded or not.
  *
  * Also included is CMPXCHG16B which is not a vector instruction, yet it is
- * subject to the same check.
+ * subject to the same check.  FXSAVE and FXRSTOR are checked here too as their
+ * 512 bytes of data must be aligned to a 16 byte boundary.
  */
-static bool insn_aligned(struct x86_emulate_ctxt *ctxt, unsigned size)
+static unsigned insn_alignment(struct x86_emulate_ctxt *ctxt, unsigned size)
 {
 	if (likely(size < 16))
-		return false;
+		return 1;
 
 	if (ctxt->d & Aligned)
-		return true;
+		return size;
 	else if (ctxt->d & Unaligned)
-		return false;
+		return 1;
 	else if (ctxt->d & Avx)
-		return false;
+		return 1;
+	else if (ctxt->d & Aligned16)
+		return 16;
 	else
-		return true;
+		return size;
 }
 
 static __always_inline int __linearize(struct x86_emulate_ctxt *ctxt,
@@ -650,10 +674,10 @@ static __always_inline int __linearize(s
 	u16 sel;
 
 	la = seg_base(ctxt, addr.seg) + addr.ea;
-	*linear = la;
 	*max_size = 0;
 	switch (mode) {
 	case X86EMUL_MODE_PROT64:
+		*linear = la;
 		if (is_noncanonical_address(la))
 			goto bad;
 
@@ -662,6 +686,7 @@ static __always_inline int __linearize(s
 			goto bad;
 		break;
 	default:
+		*linear = la = (u32)la;
 		usable = ctxt->ops->get_segment(ctxt, &sel, &desc, NULL,
 						addr.seg);
 		if (!usable)
@@ -689,10 +714,9 @@ static __always_inline int __linearize(s
 			if (size > *max_size)
 				goto bad;
 		}
-		la &= (u32)-1;
 		break;
 	}
-	if (insn_aligned(ctxt, size) && ((la & (size - 1)) != 0))
+	if (la & (insn_alignment(ctxt, size) - 1))
 		return emulate_gp(ctxt, 0);
 	return X86EMUL_CONTINUE;
 bad:
@@ -779,6 +803,20 @@ static int segmented_read_std(struct x86
 	return ctxt->ops->read_std(ctxt, linear, data, size, &ctxt->exception);
 }
 
+static int segmented_write_std(struct x86_emulate_ctxt *ctxt,
+			       struct segmented_address addr,
+			       void *data,
+			       unsigned int size)
+{
+	int rc;
+	ulong linear;
+
+	rc = linearize(ctxt, addr, size, true, &linear);
+	if (rc != X86EMUL_CONTINUE)
+		return rc;
+	return ctxt->ops->write_std(ctxt, linear, data, size, &ctxt->exception);
+}
+
 /*
  * Prefetch the remaining bytes of the instruction without crossing page
  * boundary if they are not in fetch_cache yet.
@@ -1532,7 +1570,6 @@ static int write_segment_descriptor(stru
 				    &ctxt->exception);
 }
 
-/* Does not support long mode */
 static int __load_segment_descriptor(struct x86_emulate_ctxt *ctxt,
 				     u16 selector, int seg, u8 cpl,
 				     enum x86_transfer_type transfer,
@@ -1569,20 +1606,34 @@ static int __load_segment_descriptor(str
 
 	rpl = selector & 3;
 
-	/* NULL selector is not valid for TR, CS and SS (except for long mode) */
-	if ((seg == VCPU_SREG_CS
-	     || (seg == VCPU_SREG_SS
-		 && (ctxt->mode != X86EMUL_MODE_PROT64 || rpl != cpl))
-	     || seg == VCPU_SREG_TR)
-	    && null_selector)
-		goto exception;
-
 	/* TR should be in GDT only */
 	if (seg == VCPU_SREG_TR && (selector & (1 << 2)))
 		goto exception;
 
-	if (null_selector) /* for NULL selector skip all following checks */
+	/* NULL selector is not valid for TR, CS and (except for long mode) SS */
+	if (null_selector) {
+		if (seg == VCPU_SREG_CS || seg == VCPU_SREG_TR)
+			goto exception;
+
+		if (seg == VCPU_SREG_SS) {
+			if (ctxt->mode != X86EMUL_MODE_PROT64 || rpl != cpl)
+				goto exception;
+
+			/*
+			 * ctxt->ops->set_segment expects the CPL to be in
+			 * SS.DPL, so fake an expand-up 32-bit data segment.
+			 */
+			seg_desc.type = 3;
+			seg_desc.p = 1;
+			seg_desc.s = 1;
+			seg_desc.dpl = cpl;
+			seg_desc.d = 1;
+			seg_desc.g = 1;
+		}
+
+		/* Skip all following checks */
 		goto load;
+	}
 
 	ret = read_segment_descriptor(ctxt, selector, &seg_desc, &desc_addr);
 	if (ret != X86EMUL_CONTINUE)
@@ -1698,6 +1749,21 @@ static int load_segment_descriptor(struc
 				   u16 selector, int seg)
 {
 	u8 cpl = ctxt->ops->cpl(ctxt);
+
+	/*
+	 * None of MOV, POP and LSS can load a NULL selector in CPL=3, but
+	 * they can load it at CPL<3 (Intel's manual says only LSS can,
+	 * but it's wrong).
+	 *
+	 * However, the Intel manual says that putting IST=1/DPL=3 in
+	 * an interrupt gate will result in SS=3 (the AMD manual instead
+	 * says it doesn't), so allow SS=3 in __load_segment_descriptor
+	 * and only forbid it here.
+	 */
+	if (seg == VCPU_SREG_SS && selector == 3 &&
+	    ctxt->mode == X86EMUL_MODE_PROT64)
+		return emulate_exception(ctxt, GP_VECTOR, 0, true);
+
 	return __load_segment_descriptor(ctxt, selector, seg, cpl,
 					 X86_TRANSFER_NONE, NULL);
 }
@@ -2093,16 +2159,10 @@ static int em_iret(struct x86_emulate_ct
 static int em_jmp_far(struct x86_emulate_ctxt *ctxt)
 {
 	int rc;
-	unsigned short sel, old_sel;
-	struct desc_struct old_desc, new_desc;
-	const struct x86_emulate_ops *ops = ctxt->ops;
+	unsigned short sel;
+	struct desc_struct new_desc;
 	u8 cpl = ctxt->ops->cpl(ctxt);
 
-	/* Assignment of RIP may only fail in 64-bit mode */
-	if (ctxt->mode == X86EMUL_MODE_PROT64)
-		ops->get_segment(ctxt, &old_sel, &old_desc, NULL,
-				 VCPU_SREG_CS);
-
 	memcpy(&sel, ctxt->src.valptr + ctxt->op_bytes, 2);
 
 	rc = __load_segment_descriptor(ctxt, sel, VCPU_SREG_CS, cpl,
@@ -2112,12 +2172,10 @@ static int em_jmp_far(struct x86_emulate
 		return rc;
 
 	rc = assign_eip_far(ctxt, ctxt->src.val, &new_desc);
-	if (rc != X86EMUL_CONTINUE) {
-		WARN_ON(ctxt->mode != X86EMUL_MODE_PROT64);
-		/* assigning eip failed; restore the old cs */
-		ops->set_segment(ctxt, old_sel, &old_desc, 0, VCPU_SREG_CS);
-		return rc;
-	}
+	/* Error handling is not implemented. */
+	if (rc != X86EMUL_CONTINUE)
+		return X86EMUL_UNHANDLEABLE;
+
 	return rc;
 }
 
@@ -2177,14 +2235,8 @@ static int em_ret_far(struct x86_emulate
 {
 	int rc;
 	unsigned long eip, cs;
-	u16 old_cs;
 	int cpl = ctxt->ops->cpl(ctxt);
-	struct desc_struct old_desc, new_desc;
-	const struct x86_emulate_ops *ops = ctxt->ops;
-
-	if (ctxt->mode == X86EMUL_MODE_PROT64)
-		ops->get_segment(ctxt, &old_cs, &old_desc, NULL,
-				 VCPU_SREG_CS);
+	struct desc_struct new_desc;
 
 	rc = emulate_pop(ctxt, &eip, ctxt->op_bytes);
 	if (rc != X86EMUL_CONTINUE)
@@ -2201,10 +2253,10 @@ static int em_ret_far(struct x86_emulate
 	if (rc != X86EMUL_CONTINUE)
 		return rc;
 	rc = assign_eip_far(ctxt, eip, &new_desc);
-	if (rc != X86EMUL_CONTINUE) {
-		WARN_ON(ctxt->mode != X86EMUL_MODE_PROT64);
-		ops->set_segment(ctxt, old_cs, &old_desc, 0, VCPU_SREG_CS);
-	}
+	/* Error handling is not implemented. */
+	if (rc != X86EMUL_CONTINUE)
+		return X86EMUL_UNHANDLEABLE;
+
 	return rc;
 }
 
@@ -2479,7 +2531,7 @@ static int em_rsm(struct x86_emulate_ctx
 	u64 smbase;
 	int ret;
 
-	if ((ctxt->emul_flags & X86EMUL_SMM_MASK) == 0)
+	if ((ctxt->ops->get_hflags(ctxt) & X86EMUL_SMM_MASK) == 0)
 		return emulate_ud(ctxt);
 
 	/*
@@ -2528,11 +2580,11 @@ static int em_rsm(struct x86_emulate_ctx
 		return X86EMUL_UNHANDLEABLE;
 	}
 
-	if ((ctxt->emul_flags & X86EMUL_SMM_INSIDE_NMI_MASK) == 0)
+	if ((ctxt->ops->get_hflags(ctxt) & X86EMUL_SMM_INSIDE_NMI_MASK) == 0)
 		ctxt->ops->set_nmi_mask(ctxt, false);
 
-	ctxt->emul_flags &= ~X86EMUL_SMM_INSIDE_NMI_MASK;
-	ctxt->emul_flags &= ~X86EMUL_SMM_MASK;
+	ctxt->ops->set_hflags(ctxt, ctxt->ops->get_hflags(ctxt) &
+		~(X86EMUL_SMM_INSIDE_NMI_MASK | X86EMUL_SMM_MASK));
 	return X86EMUL_CONTINUE;
 }
 
@@ -2674,6 +2726,7 @@ static int em_syscall(struct x86_emulate
 		ctxt->eflags &= ~(X86_EFLAGS_VM | X86_EFLAGS_IF);
 	}
 
+	ctxt->tf = (ctxt->eflags & X86_EFLAGS_TF) != 0;
 	return X86EMUL_CONTINUE;
 }
 
@@ -3660,8 +3713,8 @@ static int emulate_store_desc_ptr(struct
 	}
 	/* Disable writeback. */
 	ctxt->dst.type = OP_NONE;
-	return segmented_write(ctxt, ctxt->dst.addr.mem,
-			       &desc_ptr, 2 + ctxt->op_bytes);
+	return segmented_write_std(ctxt, ctxt->dst.addr.mem,
+				   &desc_ptr, 2 + ctxt->op_bytes);
 }
 
 static int em_sgdt(struct x86_emulate_ctxt *ctxt)
@@ -3844,6 +3897,131 @@ static int em_movsxd(struct x86_emulate_
 	return X86EMUL_CONTINUE;
 }
 
+static int check_fxsr(struct x86_emulate_ctxt *ctxt)
+{
+	u32 eax = 1, ebx, ecx = 0, edx;
+
+	ctxt->ops->get_cpuid(ctxt, &eax, &ebx, &ecx, &edx);
+	if (!(edx & FFL(FXSR)))
+		return emulate_ud(ctxt);
+
+	if (ctxt->ops->get_cr(ctxt, 0) & (X86_CR0_TS | X86_CR0_EM))
+		return emulate_nm(ctxt);
+
+	/*
+	 * Don't emulate a case that should never be hit, instead of working
+	 * around a lack of fxsave64/fxrstor64 on old compilers.
+	 */
+	if (ctxt->mode >= X86EMUL_MODE_PROT64)
+		return X86EMUL_UNHANDLEABLE;
+
+	return X86EMUL_CONTINUE;
+}
+
+/*
+ * FXSAVE and FXRSTOR have 4 different formats depending on execution mode,
+ *  1) 16 bit mode
+ *  2) 32 bit mode
+ *     - like (1), but FIP and FDP (foo) are only 16 bit.  At least Intel CPUs
+ *       preserve whole 32 bit values, though, so (1) and (2) are the same wrt.
+ *       save and restore
+ *  3) 64-bit mode with REX.W prefix
+ *     - like (2), but XMM 8-15 are being saved and restored
+ *  4) 64-bit mode without REX.W prefix
+ *     - like (3), but FIP and FDP are 64 bit
+ *
+ * Emulation uses (3) for (1) and (2) and preserves XMM 8-15 to reach the
+ * desired result.  (4) is not emulated.
+ *
+ * Note: Guest and host CPUID.(EAX=07H,ECX=0H):EBX[bit 13] (deprecate FPU CS
+ * and FPU DS) should match.
+ */
+static int em_fxsave(struct x86_emulate_ctxt *ctxt)
+{
+	struct fxregs_state fx_state;
+	size_t size;
+	int rc;
+
+	rc = check_fxsr(ctxt);
+	if (rc != X86EMUL_CONTINUE)
+		return rc;
+
+	ctxt->ops->get_fpu(ctxt);
+
+	rc = asm_safe("fxsave %[fx]", , [fx] "+m"(fx_state));
+
+	ctxt->ops->put_fpu(ctxt);
+
+	if (rc != X86EMUL_CONTINUE)
+		return rc;
+
+	if (ctxt->ops->get_cr(ctxt, 4) & X86_CR4_OSFXSR)
+		size = offsetof(struct fxregs_state, xmm_space[8 * 16/4]);
+	else
+		size = offsetof(struct fxregs_state, xmm_space[0]);
+
+	return segmented_write_std(ctxt, ctxt->memop.addr.mem, &fx_state, size);
+}
+
+static int fxrstor_fixup(struct x86_emulate_ctxt *ctxt,
+		struct fxregs_state *new)
+{
+	int rc = X86EMUL_CONTINUE;
+	struct fxregs_state old;
+
+	rc = asm_safe("fxsave %[fx]", , [fx] "+m"(old));
+	if (rc != X86EMUL_CONTINUE)
+		return rc;
+
+	/*
+	 * 64 bit host will restore XMM 8-15, which is not correct on non-64
+	 * bit guests.  Load the current values in order to preserve 64 bit
+	 * XMMs after fxrstor.
+	 */
+#ifdef CONFIG_X86_64
+	/* XXX: accessing XMM 8-15 very awkwardly */
+	memcpy(&new->xmm_space[8 * 16/4], &old.xmm_space[8 * 16/4], 8 * 16);
+#endif
+
+	/*
+	 * Hardware doesn't save and restore XMM 0-7 without CR4.OSFXSR, but
+	 * does save and restore MXCSR.
+	 */
+	if (!(ctxt->ops->get_cr(ctxt, 4) & X86_CR4_OSFXSR))
+		memcpy(new->xmm_space, old.xmm_space, 8 * 16);
+
+	return rc;
+}
+
+static int em_fxrstor(struct x86_emulate_ctxt *ctxt)
+{
+	struct fxregs_state fx_state;
+	int rc;
+
+	rc = check_fxsr(ctxt);
+	if (rc != X86EMUL_CONTINUE)
+		return rc;
+
+	rc = segmented_read_std(ctxt, ctxt->memop.addr.mem, &fx_state, 512);
+	if (rc != X86EMUL_CONTINUE)
+		return rc;
+
+	if (fx_state.mxcsr >> 16)
+		return emulate_gp(ctxt, 0);
+
+	ctxt->ops->get_fpu(ctxt);
+
+	if (ctxt->mode < X86EMUL_MODE_PROT64)
+		rc = fxrstor_fixup(ctxt, &fx_state);
+
+	if (rc == X86EMUL_CONTINUE)
+		rc = asm_safe("fxrstor %[fx]", : [fx] "m"(fx_state));
+
+	ctxt->ops->put_fpu(ctxt);
+
+	return rc;
+}
+
 static bool valid_cr(int nr)
 {
 	switch (nr) {
@@ -4196,7 +4374,9 @@ static const struct gprefix pfx_0f_ae_7
 };
 
 static const struct group_dual group15 = { {
-	N, N, N, N, N, N, N, GP(0, &pfx_0f_ae_7),
+	I(ModRM | Aligned16, em_fxsave),
+	I(ModRM | Aligned16, em_fxrstor),
+	N, N, N, N, N, GP(0, &pfx_0f_ae_7),
 }, {
 	N, N, N, N, N, N, N, N,
 } };
@@ -5033,7 +5213,7 @@ done_prefixes:
 	/* Decode and fetch the destination operand: register or memory. */
 	rc = decode_operand(ctxt, &ctxt->dst, (ctxt->d >> DstShift) & OpMask);
 
-	if (ctxt->rip_relative)
+	if (ctxt->rip_relative && likely(ctxt->memopp))
 		ctxt->memopp->addr.mem.ea = address_mask(ctxt,
 					ctxt->memopp->addr.mem.ea + ctxt->_eip);
 
@@ -5068,21 +5248,13 @@ static bool string_insn_completed(struct
 
 static int flush_pending_x87_faults(struct x86_emulate_ctxt *ctxt)
 {
-	bool fault = false;
+	int rc;
 
 	ctxt->ops->get_fpu(ctxt);
-	asm volatile("1: fwait \n\t"
-		     "2: \n\t"
-		     ".pushsection .fixup,\"ax\" \n\t"
-		     "3: \n\t"
-		     "movb $1, %[fault] \n\t"
-		     "jmp 2b \n\t"
-		     ".popsection \n\t"
-		     _ASM_EXTABLE(1b, 3b)
-		     : [fault]"+qm"(fault));
+	rc = asm_safe("fwait");
 	ctxt->ops->put_fpu(ctxt);
 
-	if (unlikely(fault))
+	if (unlikely(rc != X86EMUL_CONTINUE))
 		return emulate_exception(ctxt, MF_VECTOR, 0, false);
 
 	return X86EMUL_CONTINUE;
@@ -5125,6 +5297,7 @@ int x86_emulate_insn(struct x86_emulate_
 	const struct x86_emulate_ops *ops = ctxt->ops;
 	int rc = X86EMUL_CONTINUE;
 	int saved_dst_type = ctxt->dst.type;
+	unsigned emul_flags;
 
 	ctxt->mem_read.pos = 0;
 
@@ -5139,6 +5312,7 @@ int x86_emulate_insn(struct x86_emulate_
 		goto done;
 	}
 
+	emul_flags = ctxt->ops->get_hflags(ctxt);
 	if (unlikely(ctxt->d &
 		     (No64|Undefined|Sse|Mmx|Intercept|CheckPerm|Priv|Prot|String))) {
 		if ((ctxt->mode == X86EMUL_MODE_PROT64 && (ctxt->d & No64)) ||
@@ -5172,7 +5346,7 @@ int x86_emulate_insn(struct x86_emulate_
 				fetch_possible_mmx_operand(ctxt, &ctxt->dst);
 		}
 
-		if (unlikely(ctxt->emul_flags & X86EMUL_GUEST_MASK) && ctxt->intercept) {
+		if (unlikely(emul_flags & X86EMUL_GUEST_MASK) && ctxt->intercept) {
 			rc = emulator_check_intercept(ctxt, ctxt->intercept,
 						      X86_ICPT_PRE_EXCEPT);
 			if (rc != X86EMUL_CONTINUE)
@@ -5201,7 +5375,7 @@ int x86_emulate_insn(struct x86_emulate_
 				goto done;
 		}
 
-		if (unlikely(ctxt->emul_flags & X86EMUL_GUEST_MASK) && (ctxt->d & Intercept)) {
+		if (unlikely(emul_flags & X86EMUL_GUEST_MASK) && (ctxt->d & Intercept)) {
 			rc = emulator_check_intercept(ctxt, ctxt->intercept,
 						      X86_ICPT_POST_EXCEPT);
 			if (rc != X86EMUL_CONTINUE)
@@ -5255,7 +5429,7 @@ int x86_emulate_insn(struct x86_emulate_
 
 special_insn:
 
-	if (unlikely(ctxt->emul_flags & X86EMUL_GUEST_MASK) && (ctxt->d & Intercept)) {
+	if (unlikely(emul_flags & X86EMUL_GUEST_MASK) && (ctxt->d & Intercept)) {
 		rc = emulator_check_intercept(ctxt, ctxt->intercept,
 					      X86_ICPT_POST_MEMACCESS);
 		if (rc != X86EMUL_CONTINUE)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kvm/i8254.c linux-libre-4.4.107-gnu/arch/x86/kvm/i8254.c
--- linux-libre-4.4-gnu/arch/x86/kvm/i8254.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/kvm/i8254.c	2017-12-20 04:05:01.000000000 -0500
@@ -245,7 +245,7 @@ static void kvm_pit_ack_irq(struct kvm_i
 		 * PIC is being reset.  Handle it gracefully here
 		 */
 		atomic_inc(&ps->pending);
-	else if (value > 0)
+	else if (value > 0 && ps->reinject)
 		/* in this case, we had multiple outstanding pit interrupts
 		 * that we needed to inject.  Reinject
 		 */
@@ -288,7 +288,9 @@ static void pit_do_work(struct kthread_w
 	 * last one has been acked.
 	 */
 	spin_lock(&ps->inject_lock);
-	if (ps->irq_ack) {
+	if (!ps->reinject)
+		inject = 1;
+	else if (ps->irq_ack) {
 		ps->irq_ack = 0;
 		inject = 1;
 	}
@@ -317,10 +319,10 @@ static enum hrtimer_restart pit_timer_fn
 	struct kvm_kpit_state *ps = container_of(data, struct kvm_kpit_state, timer);
 	struct kvm_pit *pt = ps->kvm->arch.vpit;
 
-	if (ps->reinject || !atomic_read(&ps->pending)) {
+	if (ps->reinject)
 		atomic_inc(&ps->pending);
-		queue_kthread_work(&pt->worker, &pt->expired);
-	}
+
+	queue_kthread_work(&pt->worker, &pt->expired);
 
 	if (ps->is_periodic) {
 		hrtimer_add_expires_ns(&ps->timer, ps->period);
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kvm/ioapic.c linux-libre-4.4.107-gnu/arch/x86/kvm/ioapic.c
--- linux-libre-4.4-gnu/arch/x86/kvm/ioapic.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/kvm/ioapic.c	2017-12-20 04:05:01.000000000 -0500
@@ -580,7 +580,7 @@ static void kvm_ioapic_reset(struct kvm_
 	ioapic->irr = 0;
 	ioapic->irr_delivered = 0;
 	ioapic->id = 0;
-	memset(ioapic->irq_eoi, 0x00, IOAPIC_NUM_PINS);
+	memset(ioapic->irq_eoi, 0x00, sizeof(ioapic->irq_eoi));
 	rtc_irq_eoi_tracking_reset(ioapic);
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kvm/irq_comm.c linux-libre-4.4.107-gnu/arch/x86/kvm/irq_comm.c
--- linux-libre-4.4-gnu/arch/x86/kvm/irq_comm.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/kvm/irq_comm.c	2017-12-20 04:05:01.000000000 -0500
@@ -38,6 +38,15 @@ static int kvm_set_pic_irq(struct kvm_ke
 			   bool line_status)
 {
 	struct kvm_pic *pic = pic_irqchip(kvm);
+
+	/*
+	 * XXX: rejecting pic routes when pic isn't in use would be better,
+	 * but the default routing table is installed while kvm->arch.vpic is
+	 * NULL and KVM_CREATE_IRQCHIP can race with KVM_IRQ_LINE.
+	 */
+	if (!pic)
+		return -1;
+
 	return kvm_pic_set_irq(pic, e->irqchip.pin, irq_source_id, level);
 }
 
@@ -46,6 +55,10 @@ static int kvm_set_ioapic_irq(struct kvm
 			      bool line_status)
 {
 	struct kvm_ioapic *ioapic = kvm->arch.vioapic;
+
+	if (!ioapic)
+		return -1;
+
 	return kvm_ioapic_set_irq(ioapic, e->irqchip.pin, irq_source_id, level,
 				line_status);
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kvm/lapic.c linux-libre-4.4.107-gnu/arch/x86/kvm/lapic.c
--- linux-libre-4.4-gnu/arch/x86/kvm/lapic.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/kvm/lapic.c	2017-12-20 04:05:01.000000000 -0500
@@ -2187,3 +2187,9 @@ void kvm_lapic_init(void)
 	jump_label_rate_limit(&apic_hw_disabled, HZ);
 	jump_label_rate_limit(&apic_sw_disabled, HZ);
 }
+
+void kvm_lapic_exit(void)
+{
+	static_key_deferred_flush(&apic_hw_disabled);
+	static_key_deferred_flush(&apic_sw_disabled);
+}
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kvm/lapic.h linux-libre-4.4.107-gnu/arch/x86/kvm/lapic.h
--- linux-libre-4.4-gnu/arch/x86/kvm/lapic.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/kvm/lapic.h	2017-12-20 04:05:01.000000000 -0500
@@ -95,6 +95,7 @@ static inline bool kvm_hv_vapic_assist_p
 
 int kvm_lapic_enable_pv_eoi(struct kvm_vcpu *vcpu, u64 data);
 void kvm_lapic_init(void);
+void kvm_lapic_exit(void);
 
 static inline u32 kvm_apic_get_reg(struct kvm_lapic *apic, int reg_off)
 {
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kvm/mmu.c linux-libre-4.4.107-gnu/arch/x86/kvm/mmu.c
--- linux-libre-4.4-gnu/arch/x86/kvm/mmu.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/kvm/mmu.c	2017-12-20 04:05:01.000000000 -0500
@@ -3433,12 +3433,15 @@ static int kvm_arch_setup_async_pf(struc
 	return kvm_setup_async_pf(vcpu, gva, kvm_vcpu_gfn_to_hva(vcpu, gfn), &arch);
 }
 
-static bool can_do_async_pf(struct kvm_vcpu *vcpu)
+bool kvm_can_do_async_pf(struct kvm_vcpu *vcpu)
 {
 	if (unlikely(!lapic_in_kernel(vcpu) ||
 		     kvm_event_needs_reinjection(vcpu)))
 		return false;
 
+	if (is_guest_mode(vcpu))
+		return false;
+
 	return kvm_x86_ops->interrupt_allowed(vcpu);
 }
 
@@ -3454,7 +3457,7 @@ static bool try_async_pf(struct kvm_vcpu
 	if (!async)
 		return false; /* *pfn has correct page already */
 
-	if (!prefault && can_do_async_pf(vcpu)) {
+	if (!prefault && kvm_can_do_async_pf(vcpu)) {
 		trace_kvm_try_async_get_page(gva, gfn);
 		if (kvm_find_async_pf_gfn(vcpu, gfn)) {
 			trace_kvm_async_pf_doublefault(gva, gfn);
@@ -3754,13 +3757,15 @@ static void reset_rsvds_bits_mask_ept(st
 void
 reset_shadow_zero_bits_mask(struct kvm_vcpu *vcpu, struct kvm_mmu *context)
 {
+	bool uses_nx = context->nx || context->base_role.smep_andnot_wp;
+
 	/*
 	 * Passing "true" to the last argument is okay; it adds a check
 	 * on bit 8 of the SPTEs which KVM doesn't use anyway.
 	 */
 	__reset_rsvds_bits_mask(vcpu, &context->shadow_zero_check,
 				boot_cpu_data.x86_phys_bits,
-				context->shadow_root_level, context->nx,
+				context->shadow_root_level, uses_nx,
 				guest_cpuid_has_gbpages(vcpu), is_pse(vcpu),
 				true);
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kvm/mmu.h linux-libre-4.4.107-gnu/arch/x86/kvm/mmu.h
--- linux-libre-4.4-gnu/arch/x86/kvm/mmu.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/kvm/mmu.h	2017-12-20 04:05:01.000000000 -0500
@@ -74,6 +74,7 @@ enum {
 int handle_mmio_page_fault(struct kvm_vcpu *vcpu, u64 addr, bool direct);
 void kvm_init_shadow_mmu(struct kvm_vcpu *vcpu);
 void kvm_init_shadow_ept_mmu(struct kvm_vcpu *vcpu, bool execonly);
+bool kvm_can_do_async_pf(struct kvm_vcpu *vcpu);
 
 static inline unsigned int kvm_mmu_available_pages(struct kvm *kvm)
 {
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kvm/mtrr.c linux-libre-4.4.107-gnu/arch/x86/kvm/mtrr.c
--- linux-libre-4.4-gnu/arch/x86/kvm/mtrr.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/kvm/mtrr.c	2017-12-20 04:05:01.000000000 -0500
@@ -44,8 +44,6 @@ static bool msr_mtrr_valid(unsigned msr)
 	case MSR_MTRRdefType:
 	case MSR_IA32_CR_PAT:
 		return true;
-	case 0x2f8:
-		return true;
 	}
 	return false;
 }
@@ -541,6 +539,7 @@ static void mtrr_lookup_var_start(struct
 
 	iter->fixed = false;
 	iter->start_max = iter->start;
+	iter->range = NULL;
 	iter->range = list_prepare_entry(iter->range, &mtrr_state->head, node);
 
 	__mtrr_lookup_var_next(iter);
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kvm/paging_tmpl.h linux-libre-4.4.107-gnu/arch/x86/kvm/paging_tmpl.h
--- linux-libre-4.4-gnu/arch/x86/kvm/paging_tmpl.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/kvm/paging_tmpl.h	2017-12-20 04:05:01.000000000 -0500
@@ -249,7 +249,7 @@ static int FNAME(update_accessed_dirty_b
 			return ret;
 
 		kvm_vcpu_mark_page_dirty(vcpu, table_gfn);
-		walker->ptes[level] = pte;
+		walker->ptes[level - 1] = pte;
 	}
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kvm/pmu_intel.c linux-libre-4.4.107-gnu/arch/x86/kvm/pmu_intel.c
--- linux-libre-4.4-gnu/arch/x86/kvm/pmu_intel.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/kvm/pmu_intel.c	2017-12-20 04:05:01.000000000 -0500
@@ -294,7 +294,7 @@ static void intel_pmu_refresh(struct kvm
 			((u64)1 << edx.split.bit_width_fixed) - 1;
 	}
 
-	pmu->global_ctrl = ((1 << pmu->nr_arch_gp_counters) - 1) |
+	pmu->global_ctrl = ((1ull << pmu->nr_arch_gp_counters) - 1) |
 		(((1ull << pmu->nr_arch_fixed_counters) - 1) << INTEL_PMC_IDX_FIXED);
 	pmu->global_ctrl_mask = ~pmu->global_ctrl;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kvm/svm.c linux-libre-4.4.107-gnu/arch/x86/kvm/svm.c
--- linux-libre-4.4-gnu/arch/x86/kvm/svm.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/kvm/svm.c	2017-12-20 04:05:01.000000000 -0500
@@ -1696,6 +1696,8 @@ static int ud_interception(struct vcpu_s
 	int er;
 
 	er = emulate_instruction(&svm->vcpu, EMULTYPE_TRAP_UD);
+	if (er == EMULATE_USER_EXIT)
+		return 0;
 	if (er != EMULATE_DONE)
 		kvm_queue_exception(&svm->vcpu, UD_VECTOR);
 	return 1;
@@ -3114,6 +3116,13 @@ static int svm_set_msr(struct kvm_vcpu *
 	u32 ecx = msr->index;
 	u64 data = msr->data;
 	switch (ecx) {
+	case MSR_IA32_CR_PAT:
+		if (!kvm_mtrr_valid(vcpu, MSR_IA32_CR_PAT, data))
+			return 1;
+		vcpu->arch.pat = data;
+		svm->vmcb->save.g_pat = data;
+		mark_dirty(svm->vmcb, VMCB_NPT);
+		break;
 	case MSR_IA32_TSC:
 		kvm_write_tsc(vcpu, msr);
 		break;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kvm/trace.h linux-libre-4.4.107-gnu/arch/x86/kvm/trace.h
--- linux-libre-4.4-gnu/arch/x86/kvm/trace.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/kvm/trace.h	2017-12-20 04:05:01.000000000 -0500
@@ -268,7 +268,7 @@ TRACE_EVENT(kvm_inj_virq,
 #define kvm_trace_sym_exc						\
 	EXS(DE), EXS(DB), EXS(BP), EXS(OF), EXS(BR), EXS(UD), EXS(NM),	\
 	EXS(DF), EXS(TS), EXS(NP), EXS(SS), EXS(GP), EXS(PF),		\
-	EXS(MF), EXS(MC)
+	EXS(MF), EXS(AC), EXS(MC)
 
 /*
  * Tracepoint for kvm interrupt injection:
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kvm/vmx.c linux-libre-4.4.107-gnu/arch/x86/kvm/vmx.c
--- linux-libre-4.4-gnu/arch/x86/kvm/vmx.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/kvm/vmx.c	2017-12-20 04:05:01.000000000 -0500
@@ -408,6 +408,7 @@ struct nested_vmx {
 	struct list_head vmcs02_pool;
 	int vmcs02_num;
 	u64 vmcs01_tsc_offset;
+	bool change_vmcs01_virtual_x2apic_mode;
 	/* L2 must run next, and mustn't decide to exit to L1. */
 	bool nested_run_pending;
 	/*
@@ -595,6 +596,8 @@ struct vcpu_vmx {
 	/* Support for PML */
 #define PML_ENTITY_NUM		512
 	struct page *pml_pg;
+
+	u64 current_tsc_ratio;
 };
 
 enum segment_cache_field {
@@ -860,7 +863,6 @@ static unsigned long nested_ept_get_cr3(
 static u64 construct_eptp(unsigned long root_hpa);
 static void kvm_cpu_vmxon(u64 addr);
 static void kvm_cpu_vmxoff(void);
-static bool vmx_mpx_supported(void);
 static bool vmx_xsaves_supported(void);
 static int vmx_cpu_uses_apicv(struct kvm_vcpu *vcpu);
 static int vmx_set_tss_addr(struct kvm *kvm, unsigned int addr);
@@ -1244,10 +1246,10 @@ static inline bool nested_cpu_has_posted
 	return vmcs12->pin_based_vm_exec_control & PIN_BASED_POSTED_INTR;
 }
 
-static inline bool is_exception(u32 intr_info)
+static inline bool is_nmi(u32 intr_info)
 {
 	return (intr_info & (INTR_INFO_INTR_TYPE_MASK | INTR_INFO_VALID_MASK))
-		== (INTR_TYPE_HARD_EXCEPTION | INTR_INFO_VALID_MASK);
+		== (INTR_TYPE_NMI_INTR | INTR_INFO_VALID_MASK);
 }
 
 static void nested_vmx_vmexit(struct kvm_vcpu *vcpu, u32 exit_reason,
@@ -1746,6 +1748,13 @@ static void add_atomic_switch_msr(struct
 			return;
 		}
 		break;
+	case MSR_IA32_PEBS_ENABLE:
+		/* PEBS needs a quiescent period after being disabled (to write
+		 * a record).  Disabling PEBS through VMX MSR swapping doesn't
+		 * provide that period, so a CPU could write host's record into
+		 * guest's memory.
+		 */
+		wrmsrl(MSR_IA32_PEBS_ENABLE, 0);
 	}
 
 	for (i = 0; i < m->nr; ++i)
@@ -1783,26 +1792,31 @@ static void reload_tss(void)
 
 static bool update_transition_efer(struct vcpu_vmx *vmx, int efer_offset)
 {
-	u64 guest_efer;
-	u64 ignore_bits;
+	u64 guest_efer = vmx->vcpu.arch.efer;
+	u64 ignore_bits = 0;
 
-	guest_efer = vmx->vcpu.arch.efer;
+	if (!enable_ept) {
+		/*
+		 * NX is needed to handle CR0.WP=1, CR4.SMEP=1.  Testing
+		 * host CPUID is more efficient than testing guest CPUID
+		 * or CR4.  Host SMEP is anyway a requirement for guest SMEP.
+		 */
+		if (boot_cpu_has(X86_FEATURE_SMEP))
+			guest_efer |= EFER_NX;
+		else if (!(guest_efer & EFER_NX))
+			ignore_bits |= EFER_NX;
+	}
 
 	/*
-	 * NX is emulated; LMA and LME handled by hardware; SCE meaningless
-	 * outside long mode
+	 * LMA and LME handled by hardware; SCE meaningless outside long mode.
 	 */
-	ignore_bits = EFER_NX | EFER_SCE;
+	ignore_bits |= EFER_SCE;
 #ifdef CONFIG_X86_64
 	ignore_bits |= EFER_LMA | EFER_LME;
 	/* SCE is meaningful only in long mode on Intel */
 	if (guest_efer & EFER_LMA)
 		ignore_bits &= ~(u64)EFER_SCE;
 #endif
-	guest_efer &= ~ignore_bits;
-	guest_efer |= host_efer & ignore_bits;
-	vmx->guest_msrs[efer_offset].data = guest_efer;
-	vmx->guest_msrs[efer_offset].mask = ~ignore_bits;
 
 	clear_atomic_switch_msr(vmx, MSR_EFER);
 
@@ -1813,16 +1827,21 @@ static bool update_transition_efer(struc
 	 */
 	if (cpu_has_load_ia32_efer ||
 	    (enable_ept && ((vmx->vcpu.arch.efer ^ host_efer) & EFER_NX))) {
-		guest_efer = vmx->vcpu.arch.efer;
 		if (!(guest_efer & EFER_LMA))
 			guest_efer &= ~EFER_LME;
 		if (guest_efer != host_efer)
 			add_atomic_switch_msr(vmx, MSR_EFER,
 					      guest_efer, host_efer);
 		return false;
-	}
+	} else {
+		guest_efer &= ~ignore_bits;
+		guest_efer |= host_efer & ignore_bits;
 
-	return true;
+		vmx->guest_msrs[efer_offset].data = guest_efer;
+		vmx->guest_msrs[efer_offset].mask = ~ignore_bits;
+
+		return true;
+	}
 }
 
 static unsigned long segment_base(u16 selector)
@@ -2010,8 +2029,8 @@ static void vmx_vcpu_pi_load(struct kvm_
 
 		/* Allow posting non-urgent interrupts */
 		new.sn = 0;
-	} while (cmpxchg(&pi_desc->control, old.control,
-			new.control) != old.control);
+	} while (cmpxchg64(&pi_desc->control, old.control,
+			   new.control) != old.control);
 }
 /*
  * Switches to specified vcpu, until a matching vcpu_put(), but assumes
@@ -2062,14 +2081,16 @@ static void vmx_vcpu_load(struct kvm_vcp
 		rdmsrl(MSR_IA32_SYSENTER_ESP, sysenter_esp);
 		vmcs_writel(HOST_IA32_SYSENTER_ESP, sysenter_esp); /* 22.2.3 */
 
-		/* Setup TSC multiplier */
-		if (cpu_has_vmx_tsc_scaling())
-			vmcs_write64(TSC_MULTIPLIER,
-				     vcpu->arch.tsc_scaling_ratio);
-
 		vmx->loaded_vmcs->cpu = cpu;
 	}
 
+	/* Setup TSC multiplier */
+	if (kvm_has_tsc_control &&
+	    vmx->current_tsc_ratio != vcpu->arch.tsc_scaling_ratio) {
+		vmx->current_tsc_ratio = vcpu->arch.tsc_scaling_ratio;
+		vmcs_write64(TSC_MULTIPLIER, vmx->current_tsc_ratio);
+	}
+
 	vmx_vcpu_pi_load(vcpu, cpu);
 }
 
@@ -2242,7 +2263,7 @@ static int nested_vmx_check_exception(st
 	if (!(vmcs12->exception_bitmap & (1u << nr)))
 		return 0;
 
-	nested_vmx_vmexit(vcpu, to_vmx(vcpu)->exit_reason,
+	nested_vmx_vmexit(vcpu, EXIT_REASON_EXCEPTION_NMI,
 			  vmcs_read32(VM_EXIT_INTR_INFO),
 			  vmcs_readl(EXIT_QUALIFICATION));
 	return 1;
@@ -2519,7 +2540,7 @@ static void nested_vmx_setup_ctls_msrs(s
 		VM_EXIT_LOAD_IA32_EFER | VM_EXIT_SAVE_IA32_EFER |
 		VM_EXIT_SAVE_VMX_PREEMPTION_TIMER | VM_EXIT_ACK_INTR_ON_EXIT;
 
-	if (vmx_mpx_supported())
+	if (kvm_mpx_supported())
 		vmx->nested.nested_vmx_exit_ctls_high |= VM_EXIT_CLEAR_BNDCFGS;
 
 	/* We support free control of debug control saving. */
@@ -2540,7 +2561,7 @@ static void nested_vmx_setup_ctls_msrs(s
 		VM_ENTRY_LOAD_IA32_PAT;
 	vmx->nested.nested_vmx_entry_ctls_high |=
 		(VM_ENTRY_ALWAYSON_WITHOUT_TRUE_MSR | VM_ENTRY_LOAD_IA32_EFER);
-	if (vmx_mpx_supported())
+	if (kvm_mpx_supported())
 		vmx->nested.nested_vmx_entry_ctls_high |= VM_ENTRY_LOAD_BNDCFGS;
 
 	/* We support free control of debug control loading. */
@@ -2616,8 +2637,15 @@ static void nested_vmx_setup_ctls_msrs(s
 	} else
 		vmx->nested.nested_vmx_ept_caps = 0;
 
+	/*
+	 * Old versions of KVM use the single-context version without
+	 * checking for support, so declare that it is supported even
+	 * though it is treated as global context.  The alternative is
+	 * not failing the single-context invvpid, and it is worse.
+	 */
 	if (enable_vpid)
 		vmx->nested.nested_vmx_vpid_caps = VMX_VPID_INVVPID_BIT |
+				VMX_VPID_EXTENT_SINGLE_CONTEXT_BIT |
 				VMX_VPID_EXTENT_GLOBAL_CONTEXT_BIT;
 	else
 		vmx->nested.nested_vmx_vpid_caps = 0;
@@ -2784,7 +2812,8 @@ static int vmx_get_msr(struct kvm_vcpu *
 		msr_info->data = vmcs_readl(GUEST_SYSENTER_ESP);
 		break;
 	case MSR_IA32_BNDCFGS:
-		if (!vmx_mpx_supported())
+		if (!kvm_mpx_supported() ||
+		    (!msr_info->host_initiated && !guest_cpuid_has_mpx(vcpu)))
 			return 1;
 		msr_info->data = vmcs_read64(GUEST_BNDCFGS);
 		break;
@@ -2861,7 +2890,11 @@ static int vmx_set_msr(struct kvm_vcpu *
 		vmcs_writel(GUEST_SYSENTER_ESP, data);
 		break;
 	case MSR_IA32_BNDCFGS:
-		if (!vmx_mpx_supported())
+		if (!kvm_mpx_supported() ||
+		    (!msr_info->host_initiated && !guest_cpuid_has_mpx(vcpu)))
+			return 1;
+		if (is_noncanonical_address(data & PAGE_MASK) ||
+		    (data & MSR_IA32_BNDCFGS_RSVD))
 			return 1;
 		vmcs_write64(GUEST_BNDCFGS, data);
 		break;
@@ -3334,7 +3367,7 @@ static void init_vmcs_shadow_fields(void
 	for (i = j = 0; i < max_shadow_read_write_fields; i++) {
 		switch (shadow_read_write_fields[i]) {
 		case GUEST_BNDCFGS:
-			if (!vmx_mpx_supported())
+			if (!kvm_mpx_supported())
 				continue;
 			break;
 		default:
@@ -3470,7 +3503,7 @@ static void fix_rmode_seg(int seg, struc
 	}
 
 	vmcs_write16(sf->selector, var.selector);
-	vmcs_write32(sf->base, var.base);
+	vmcs_writel(sf->base, var.base);
 	vmcs_write32(sf->limit, var.limit);
 	vmcs_write32(sf->ar_bytes, vmx_segment_access_rights(&var));
 }
@@ -4508,21 +4541,30 @@ static inline bool kvm_vcpu_trigger_post
 {
 #ifdef CONFIG_SMP
 	if (vcpu->mode == IN_GUEST_MODE) {
-		struct vcpu_vmx *vmx = to_vmx(vcpu);
-
 		/*
-		 * Currently, we don't support urgent interrupt,
-		 * all interrupts are recognized as non-urgent
-		 * interrupt, so we cannot post interrupts when
-		 * 'SN' is set.
+		 * The vector of interrupt to be delivered to vcpu had
+		 * been set in PIR before this function.
 		 *
-		 * If the vcpu is in guest mode, it means it is
-		 * running instead of being scheduled out and
-		 * waiting in the run queue, and that's the only
-		 * case when 'SN' is set currently, warning if
-		 * 'SN' is set.
+		 * Following cases will be reached in this block, and
+		 * we always send a notification event in all cases as
+		 * explained below.
+		 *
+		 * Case 1: vcpu keeps in non-root mode. Sending a
+		 * notification event posts the interrupt to vcpu.
+		 *
+		 * Case 2: vcpu exits to root mode and is still
+		 * runnable. PIR will be synced to vIRR before the
+		 * next vcpu entry. Sending a notification event in
+		 * this case has no effect, as vcpu is not in root
+		 * mode.
+		 *
+		 * Case 3: vcpu exits to root mode and is blocked.
+		 * vcpu_block() has already synced PIR to vIRR and
+		 * never blocks vcpu if vIRR is not cleared. Therefore,
+		 * a blocked vcpu here does not wait for any requested
+		 * interrupts in PIR, and sending a notification event
+		 * which has no effect is safe here.
 		 */
-		WARN_ON_ONCE(pi_test_sn(&vmx->pi_desc));
 
 		apic->send_IPI_mask(get_cpu_mask(vcpu->cpu),
 				POSTED_INTR_VECTOR);
@@ -4838,6 +4880,12 @@ static int vmx_vcpu_setup(struct vcpu_vm
 	if (vmx_xsaves_supported())
 		vmcs_write64(XSS_EXIT_BITMAP, VMX_XSS_EXIT_BITMAP);
 
+	if (enable_pml) {
+		ASSERT(vmx->pml_pg);
+		vmcs_write64(PML_ADDRESS, page_to_phys(vmx->pml_pg));
+		vmcs_write16(GUEST_PML_INDEX, PML_ENTITY_NUM - 1);
+	}
+
 	return 0;
 }
 
@@ -4926,8 +4974,8 @@ static void vmx_vcpu_reset(struct kvm_vc
 		vmcs_write16(VIRTUAL_PROCESSOR_ID, vmx->vpid);
 
 	cr0 = X86_CR0_NW | X86_CR0_CD | X86_CR0_ET;
-	vmx_set_cr0(vcpu, cr0); /* enter rmode */
 	vmx->vcpu.arch.cr0 = cr0;
+	vmx_set_cr0(vcpu, cr0); /* enter rmode */
 	vmx_set_cr4(vcpu, 0);
 	vmx_set_efer(vcpu, 0);
 	vmx_fpu_activate(vcpu);
@@ -5205,7 +5253,7 @@ static int handle_exception(struct kvm_v
 	if (is_machine_check(intr_info))
 		return handle_machine_check(vcpu);
 
-	if ((intr_info & INTR_INFO_INTR_TYPE_MASK) == INTR_TYPE_NMI_INTR)
+	if (is_nmi(intr_info))
 		return 1;  /* already handled by vmx_vcpu_run() */
 
 	if (is_no_device(intr_info)) {
@@ -5219,6 +5267,8 @@ static int handle_exception(struct kvm_v
 			return 1;
 		}
 		er = emulate_instruction(vcpu, EMULTYPE_TRAP_UD);
+		if (er == EMULATE_USER_EXIT)
+			return 0;
 		if (er != EMULATE_DONE)
 			kvm_queue_exception(vcpu, UD_VECTOR);
 		return 1;
@@ -6132,12 +6182,7 @@ static __init int hardware_setup(void)
 	memset(vmx_vmread_bitmap, 0xff, PAGE_SIZE);
 	memset(vmx_vmwrite_bitmap, 0xff, PAGE_SIZE);
 
-	/*
-	 * Allow direct access to the PC debug port (it is often used for I/O
-	 * delays, but the vmexits simply slow things down).
-	 */
 	memset(vmx_io_bitmap_a, 0xff, PAGE_SIZE);
-	clear_bit(0x80, vmx_io_bitmap_a);
 
 	memset(vmx_io_bitmap_b, 0xff, PAGE_SIZE);
 
@@ -6218,7 +6263,6 @@ static __init int hardware_setup(void)
 	vmx_disable_intercept_for_msr(MSR_IA32_SYSENTER_CS, false);
 	vmx_disable_intercept_for_msr(MSR_IA32_SYSENTER_ESP, false);
 	vmx_disable_intercept_for_msr(MSR_IA32_SYSENTER_EIP, false);
-	vmx_disable_intercept_for_msr(MSR_IA32_BNDCFGS, true);
 
 	memcpy(vmx_msr_bitmap_legacy_x2apic,
 			vmx_msr_bitmap_legacy, PAGE_SIZE);
@@ -6551,7 +6595,13 @@ static int get_vmx_mem_address(struct kv
 
 	/* Checks for #GP/#SS exceptions. */
 	exn = false;
-	if (is_protmode(vcpu)) {
+	if (is_long_mode(vcpu)) {
+		/* Long mode: #GP(0)/#SS(0) if the memory address is in a
+		 * non-canonical form. This is the only check on the memory
+		 * destination for long mode!
+		 */
+		exn = is_noncanonical_address(*ret);
+	} else if (is_protmode(vcpu)) {
 		/* Protected mode: apply checks for segment validity in the
 		 * following order:
 		 * - segment type check (#GP(0) may be thrown)
@@ -6568,17 +6618,10 @@ static int get_vmx_mem_address(struct kv
 			 * execute-only code segment
 			 */
 			exn = ((s.type & 0xa) == 8);
-	}
-	if (exn) {
-		kvm_queue_exception_e(vcpu, GP_VECTOR, 0);
-		return 1;
-	}
-	if (is_long_mode(vcpu)) {
-		/* Long mode: #GP(0)/#SS(0) if the memory address is in a
-		 * non-canonical form. This is an only check for long mode.
-		 */
-		exn = is_noncanonical_address(*ret);
-	} else if (is_protmode(vcpu)) {
+		if (exn) {
+			kvm_queue_exception_e(vcpu, GP_VECTOR, 0);
+			return 1;
+		}
 		/* Protected mode: #GP(0)/#SS(0) if the segment is unusable.
 		 */
 		exn = (s.unusable != 0);
@@ -6644,14 +6687,20 @@ static int nested_vmx_check_vmptr(struct
 		}
 
 		page = nested_get_page(vcpu, vmptr);
-		if (page == NULL ||
-		    *(u32 *)kmap(page) != VMCS12_REVISION) {
+		if (page == NULL) {
 			nested_vmx_failInvalid(vcpu);
+			skip_emulated_instruction(vcpu);
+			return 1;
+		}
+		if (*(u32 *)kmap(page) != VMCS12_REVISION) {
 			kunmap(page);
+			nested_release_page_clean(page);
+			nested_vmx_failInvalid(vcpu);
 			skip_emulated_instruction(vcpu);
 			return 1;
 		}
 		kunmap(page);
+		nested_release_page_clean(page);
 		vmx->nested.vmxon_ptr = vmptr;
 		break;
 	case EXIT_REASON_VMCLEAR:
@@ -6875,9 +6924,8 @@ static int handle_vmoff(struct kvm_vcpu
 static int handle_vmclear(struct kvm_vcpu *vcpu)
 {
 	struct vcpu_vmx *vmx = to_vmx(vcpu);
+	u32 zero = 0;
 	gpa_t vmptr;
-	struct vmcs12 *vmcs12;
-	struct page *page;
 
 	if (!nested_vmx_check_permission(vcpu))
 		return 1;
@@ -6888,22 +6936,9 @@ static int handle_vmclear(struct kvm_vcp
 	if (vmptr == vmx->nested.current_vmptr)
 		nested_release_vmcs12(vmx);
 
-	page = nested_get_page(vcpu, vmptr);
-	if (page == NULL) {
-		/*
-		 * For accurate processor emulation, VMCLEAR beyond available
-		 * physical memory should do nothing at all. However, it is
-		 * possible that a nested vmx bug, not a guest hypervisor bug,
-		 * resulted in this case, so let's shut down before doing any
-		 * more damage:
-		 */
-		kvm_make_request(KVM_REQ_TRIPLE_FAULT, vcpu);
-		return 1;
-	}
-	vmcs12 = kmap(page);
-	vmcs12->launch_state = 0;
-	kunmap(page);
-	nested_release_page(page);
+	kvm_vcpu_write_guest(vcpu,
+			vmptr + offsetof(struct vmcs12, launch_state),
+			&zero, sizeof(zero));
 
 	nested_free_vmcs02(vmx, vmptr);
 
@@ -7319,6 +7354,7 @@ static int handle_invept(struct kvm_vcpu
 	if (!(types & (1UL << type))) {
 		nested_vmx_failValid(vcpu,
 				VMXERR_INVALID_OPERAND_TO_INVEPT_INVVPID);
+		skip_emulated_instruction(vcpu);
 		return 1;
 	}
 
@@ -7377,6 +7413,7 @@ static int handle_invvpid(struct kvm_vcp
 	if (!(types & (1UL << type))) {
 		nested_vmx_failValid(vcpu,
 			VMXERR_INVALID_OPERAND_TO_INVEPT_INVVPID);
+		skip_emulated_instruction(vcpu);
 		return 1;
 	}
 
@@ -7393,12 +7430,17 @@ static int handle_invvpid(struct kvm_vcp
 	}
 
 	switch (type) {
+	case VMX_VPID_EXTENT_SINGLE_CONTEXT:
+		/*
+		 * Old versions of KVM use the single-context version so we
+		 * have to support it; just treat it the same as all-context.
+		 */
 	case VMX_VPID_EXTENT_ALL_CONTEXT:
 		__vmx_flush_tlb(vcpu, to_vmx(vcpu)->nested.vpid02);
 		nested_vmx_succeed(vcpu);
 		break;
 	default:
-		/* Trap single context invalidation invvpid calls */
+		/* Trap individual address invalidation invvpid calls */
 		BUG_ON(1);
 		break;
 	}
@@ -7687,7 +7729,7 @@ static bool nested_vmx_exit_handled(stru
 
 	switch (exit_reason) {
 	case EXIT_REASON_EXCEPTION_NMI:
-		if (!is_exception(intr_info))
+		if (is_nmi(intr_info))
 			return false;
 		else if (is_page_fault(intr_info))
 			return enable_ept;
@@ -7707,8 +7749,6 @@ static bool nested_vmx_exit_handled(stru
 	case EXIT_REASON_TASK_SWITCH:
 		return true;
 	case EXIT_REASON_CPUID:
-		if (kvm_register_read(vcpu, VCPU_REGS_RAX) == 0xa)
-			return false;
 		return true;
 	case EXIT_REASON_HLT:
 		return nested_cpu_has(vmcs12, CPU_BASED_HLT_EXITING);
@@ -7793,6 +7833,9 @@ static bool nested_vmx_exit_handled(stru
 		return nested_cpu_has2(vmcs12, SECONDARY_EXEC_XSAVES);
 	case EXIT_REASON_PCOMMIT:
 		return nested_cpu_has2(vmcs12, SECONDARY_EXEC_PCOMMIT);
+	case EXIT_REASON_PML_FULL:
+		/* We don't expose PML support to L1. */
+		return false;
 	default:
 		return true;
 	}
@@ -7804,22 +7847,6 @@ static void vmx_get_exit_info(struct kvm
 	*info2 = vmcs_read32(VM_EXIT_INTR_INFO);
 }
 
-static int vmx_create_pml_buffer(struct vcpu_vmx *vmx)
-{
-	struct page *pml_pg;
-
-	pml_pg = alloc_page(GFP_KERNEL | __GFP_ZERO);
-	if (!pml_pg)
-		return -ENOMEM;
-
-	vmx->pml_pg = pml_pg;
-
-	vmcs_write64(PML_ADDRESS, page_to_phys(vmx->pml_pg));
-	vmcs_write16(GUEST_PML_INDEX, PML_ENTITY_NUM - 1);
-
-	return 0;
-}
-
 static void vmx_destroy_pml_buffer(struct vcpu_vmx *vmx)
 {
 	if (vmx->pml_pg) {
@@ -7880,7 +7907,7 @@ static void kvm_flush_pml_buffers(struct
 static void vmx_dump_sel(char *name, uint32_t sel)
 {
 	pr_err("%s sel=0x%04x, attr=0x%05x, limit=0x%08x, base=0x%016lx\n",
-	       name, vmcs_read32(sel),
+	       name, vmcs_read16(sel),
 	       vmcs_read32(sel + GUEST_ES_AR_BYTES - GUEST_ES_SELECTOR),
 	       vmcs_read32(sel + GUEST_ES_LIMIT - GUEST_ES_SELECTOR),
 	       vmcs_readl(sel + GUEST_ES_BASE - GUEST_ES_SELECTOR));
@@ -8090,6 +8117,7 @@ static int vmx_handle_exit(struct kvm_vc
 	if ((vectoring_info & VECTORING_INFO_VALID_MASK) &&
 			(exit_reason != EXIT_REASON_EXCEPTION_NMI &&
 			exit_reason != EXIT_REASON_EPT_VIOLATION &&
+			exit_reason != EXIT_REASON_PML_FULL &&
 			exit_reason != EXIT_REASON_TASK_SWITCH)) {
 		vcpu->run->exit_reason = KVM_EXIT_INTERNAL_ERROR;
 		vcpu->run->internal.suberror = KVM_INTERNAL_ERROR_DELIVERY_EV;
@@ -8149,6 +8177,12 @@ static void vmx_set_virtual_x2apic_mode(
 {
 	u32 sec_exec_control;
 
+	/* Postpone execution until vmcs01 is the current VMCS. */
+	if (is_guest_mode(vcpu)) {
+		to_vmx(vcpu)->nested.change_vmcs01_virtual_x2apic_mode = true;
+		return;
+	}
+
 	/*
 	 * There is not point to enable virtualize x2apic without enable
 	 * apicv
@@ -8287,8 +8321,7 @@ static void vmx_complete_atomic_exit(str
 		kvm_machine_check();
 
 	/* We need to handle NMIs before interrupts are enabled */
-	if ((exit_intr_info & INTR_INFO_INTR_TYPE_MASK) == INTR_TYPE_NMI_INTR &&
-	    (exit_intr_info & INTR_INFO_VALID_MASK)) {
+	if (is_nmi(exit_intr_info)) {
 		kvm_before_handle_nmi(&vmx->vcpu);
 		asm("int $2");
 		kvm_after_handle_nmi(&vmx->vcpu);
@@ -8702,6 +8735,22 @@ static void vmx_load_vmcs01(struct kvm_v
 	put_cpu();
 }
 
+/*
+ * Ensure that the current vmcs of the logical processor is the
+ * vmcs01 of the vcpu before calling free_nested().
+ */
+static void vmx_free_vcpu_nested(struct kvm_vcpu *vcpu)
+{
+       struct vcpu_vmx *vmx = to_vmx(vcpu);
+       int r;
+
+       r = vcpu_load(vcpu);
+       BUG_ON(r);
+       vmx_load_vmcs01(vcpu);
+       free_nested(vmx);
+       vcpu_put(vcpu);
+}
+
 static void vmx_free_vcpu(struct kvm_vcpu *vcpu)
 {
 	struct vcpu_vmx *vmx = to_vmx(vcpu);
@@ -8710,8 +8759,7 @@ static void vmx_free_vcpu(struct kvm_vcp
 		vmx_destroy_pml_buffer(vmx);
 	free_vpid(vmx->vpid);
 	leave_guest_mode(vcpu);
-	vmx_load_vmcs01(vcpu);
-	free_nested(vmx);
+	vmx_free_vcpu_nested(vcpu);
 	free_loaded_vmcs(vmx->loaded_vmcs);
 	kfree(vmx->guest_msrs);
 	kvm_vcpu_uninit(vcpu);
@@ -8733,14 +8781,26 @@ static struct kvm_vcpu *vmx_create_vcpu(
 	if (err)
 		goto free_vcpu;
 
+	err = -ENOMEM;
+
+	/*
+	 * If PML is turned on, failure on enabling PML just results in failure
+	 * of creating the vcpu, therefore we can simplify PML logic (by
+	 * avoiding dealing with cases, such as enabling PML partially on vcpus
+	 * for the guest, etc.
+	 */
+	if (enable_pml) {
+		vmx->pml_pg = alloc_page(GFP_KERNEL | __GFP_ZERO);
+		if (!vmx->pml_pg)
+			goto uninit_vcpu;
+	}
+
 	vmx->guest_msrs = kmalloc(PAGE_SIZE, GFP_KERNEL);
 	BUILD_BUG_ON(ARRAY_SIZE(vmx_msr_index) * sizeof(vmx->guest_msrs[0])
 		     > PAGE_SIZE);
 
-	err = -ENOMEM;
-	if (!vmx->guest_msrs) {
-		goto uninit_vcpu;
-	}
+	if (!vmx->guest_msrs)
+		goto free_pml;
 
 	vmx->loaded_vmcs = &vmx->vmcs01;
 	vmx->loaded_vmcs->vmcs = alloc_vmcs();
@@ -8784,18 +8844,6 @@ static struct kvm_vcpu *vmx_create_vcpu(
 	vmx->nested.current_vmptr = -1ull;
 	vmx->nested.current_vmcs12 = NULL;
 
-	/*
-	 * If PML is turned on, failure on enabling PML just results in failure
-	 * of creating the vcpu, therefore we can simplify PML logic (by
-	 * avoiding dealing with cases, such as enabling PML partially on vcpus
-	 * for the guest, etc.
-	 */
-	if (enable_pml) {
-		err = vmx_create_pml_buffer(vmx);
-		if (err)
-			goto free_vmcs;
-	}
-
 	return &vmx->vcpu;
 
 free_vmcs:
@@ -8803,6 +8851,8 @@ free_vmcs:
 	free_loaded_vmcs(vmx->loaded_vmcs);
 free_msrs:
 	kfree(vmx->guest_msrs);
+free_pml:
+	vmx_destroy_pml_buffer(vmx);
 uninit_vcpu:
 	kvm_vcpu_uninit(&vmx->vcpu);
 free_vcpu:
@@ -8932,7 +8982,8 @@ static void vmx_cpuid_update(struct kvm_
 			best->ebx &= ~bit(X86_FEATURE_INVPCID);
 	}
 
-	vmcs_set_secondary_exec_control(secondary_exec_ctl);
+	if (cpu_has_secondary_exec_ctrls())
+		vmcs_set_secondary_exec_control(secondary_exec_ctl);
 
 	if (static_cpu_has(X86_FEATURE_PCOMMIT) && nested) {
 		if (guest_cpuid_has_pcommit(vcpu))
@@ -9624,6 +9675,11 @@ static void prepare_vmcs02(struct kvm_vc
 		vmcs_write64(VIRTUAL_APIC_PAGE_ADDR,
 				page_to_phys(vmx->nested.virtual_apic_page));
 		vmcs_write32(TPR_THRESHOLD, vmcs12->tpr_threshold);
+	} else {
+#ifdef CONFIG_X86_64
+		exec_control |= CPU_BASED_CR8_LOAD_EXITING |
+				CPU_BASED_CR8_STORE_EXITING;
+#endif
 	}
 
 	if (cpu_has_vmx_msr_bitmap() &&
@@ -9704,6 +9760,18 @@ static void prepare_vmcs02(struct kvm_vc
 
 	}
 
+	if (enable_pml) {
+		/*
+		 * Conceptually we want to copy the PML address and index from
+		 * vmcs01 here, and then back to vmcs01 on nested vmexit. But,
+		 * since we always flush the log on each vmexit, this happens
+		 * to be equivalent to simply resetting the fields in vmcs02.
+		 */
+		ASSERT(vmx->pml_pg);
+		vmcs_write64(PML_ADDRESS, page_to_phys(vmx->pml_pg));
+		vmcs_write16(GUEST_PML_INDEX, PML_ENTITY_NUM - 1);
+	}
+
 	if (nested_cpu_has_ept(vmcs12)) {
 		kvm_mmu_unload(vcpu);
 		nested_ept_init_mmu_context(vcpu);
@@ -10197,7 +10265,7 @@ static void prepare_vmcs12(struct kvm_vc
 	vmcs12->guest_sysenter_cs = vmcs_read32(GUEST_SYSENTER_CS);
 	vmcs12->guest_sysenter_esp = vmcs_readl(GUEST_SYSENTER_ESP);
 	vmcs12->guest_sysenter_eip = vmcs_readl(GUEST_SYSENTER_EIP);
-	if (vmx_mpx_supported())
+	if (kvm_mpx_supported())
 		vmcs12->guest_bndcfgs = vmcs_read64(GUEST_BNDCFGS);
 	if (nested_cpu_has_xsaves(vmcs12))
 		vmcs12->xss_exit_bitmap = vmcs_read64(XSS_EXIT_BITMAP);
@@ -10284,7 +10352,7 @@ static void load_vmcs12_host_state(struc
 	 * (KVM doesn't change it)- no reason to call set_cr4_guest_host_mask();
 	 */
 	vcpu->arch.cr4_guest_owned_bits = ~vmcs_readl(CR4_GUEST_HOST_MASK);
-	kvm_set_cr4(vcpu, vmcs12->host_cr4);
+	vmx_set_cr4(vcpu, vmcs12->host_cr4);
 
 	nested_ept_uninit_mmu_context(vcpu);
 
@@ -10309,6 +10377,8 @@ static void load_vmcs12_host_state(struc
 	vmcs_writel(GUEST_SYSENTER_EIP, vmcs12->host_ia32_sysenter_eip);
 	vmcs_writel(GUEST_IDTR_BASE, vmcs12->host_idtr_base);
 	vmcs_writel(GUEST_GDTR_BASE, vmcs12->host_gdtr_base);
+	vmcs_write32(GUEST_IDTR_LIMIT, 0xFFFF);
+	vmcs_write32(GUEST_GDTR_LIMIT, 0xFFFF);
 
 	/* If not VM_EXIT_CLEAR_BNDCFGS, the L2 value propagates to L1.  */
 	if (vmcs12->vm_exit_controls & VM_EXIT_CLEAR_BNDCFGS)
@@ -10432,6 +10502,12 @@ static void nested_vmx_vmexit(struct kvm
 	/* Update TSC_OFFSET if TSC was changed while L2 ran */
 	vmcs_write64(TSC_OFFSET, vmx->nested.vmcs01_tsc_offset);
 
+	if (vmx->nested.change_vmcs01_virtual_x2apic_mode) {
+		vmx->nested.change_vmcs01_virtual_x2apic_mode = false;
+		vmx_set_virtual_x2apic_mode(vcpu,
+				vcpu->arch.apic_base & X2APIC_ENABLE);
+	}
+
 	/* This is needed for same reason as it was needed in prepare_vmcs02 */
 	vmx->host_rsp = 0;
 
@@ -10479,8 +10555,10 @@ static void nested_vmx_vmexit(struct kvm
  */
 static void vmx_leave_nested(struct kvm_vcpu *vcpu)
 {
-	if (is_guest_mode(vcpu))
+	if (is_guest_mode(vcpu)) {
+		to_vmx(vcpu)->nested.nested_run_pending = 0;
 		nested_vmx_vmexit(vcpu, -1, 0, 0);
+	}
 	free_nested(to_vmx(vcpu));
 }
 
@@ -10614,8 +10692,8 @@ static int vmx_pre_block(struct kvm_vcpu
 
 		/* set 'NV' to 'wakeup vector' */
 		new.nv = POSTED_INTR_WAKEUP_VECTOR;
-	} while (cmpxchg(&pi_desc->control, old.control,
-			new.control) != old.control);
+	} while (cmpxchg64(&pi_desc->control, old.control,
+			   new.control) != old.control);
 
 	return 0;
 }
@@ -10646,8 +10724,8 @@ static void vmx_post_block(struct kvm_vc
 
 		/* set 'NV' to 'notification vector' */
 		new.nv = POSTED_INTR_VECTOR;
-	} while (cmpxchg(&pi_desc->control, old.control,
-			new.control) != old.control);
+	} while (cmpxchg64(&pi_desc->control, old.control,
+			   new.control) != old.control);
 
 	if(vcpu->pre_pcpu != -1) {
 		spin_lock_irqsave(
@@ -10678,7 +10756,7 @@ static int vmx_update_pi_irte(struct kvm
 	struct kvm_lapic_irq irq;
 	struct kvm_vcpu *vcpu;
 	struct vcpu_data vcpu_info;
-	int idx, ret = -EINVAL;
+	int idx, ret = 0;
 
 	if (!kvm_arch_has_assigned_device(kvm) ||
 		!irq_remapping_cap(IRQ_POSTING_CAP))
@@ -10686,7 +10764,12 @@ static int vmx_update_pi_irte(struct kvm
 
 	idx = srcu_read_lock(&kvm->irq_srcu);
 	irq_rt = srcu_dereference(kvm->irq_routing, &kvm->irq_srcu);
-	BUG_ON(guest_irq >= irq_rt->nr_rt_entries);
+	if (guest_irq >= irq_rt->nr_rt_entries ||
+	    hlist_empty(&irq_rt->map[guest_irq])) {
+		pr_warn_once("no route for guest_irq %u/%u (broken user space?)\n",
+			     guest_irq, irq_rt->nr_rt_entries);
+		goto out;
+	}
 
 	hlist_for_each_entry(e, &irq_rt->map[guest_irq], link) {
 		if (e->type != KVM_IRQ_ROUTING_MSI)
@@ -10716,12 +10799,8 @@ static int vmx_update_pi_irte(struct kvm
 
 		if (set)
 			ret = irq_set_vcpu_affinity(host_irq, &vcpu_info);
-		else {
-			/* suppress notification event before unposting */
-			pi_set_sn(vcpu_to_pi_desc(vcpu));
+		else
 			ret = irq_set_vcpu_affinity(host_irq, NULL);
-			pi_clear_sn(vcpu_to_pi_desc(vcpu));
-		}
 
 		if (ret < 0) {
 			printk(KERN_INFO "%s: failed to update PI IRTE\n",
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/kvm/x86.c linux-libre-4.4.107-gnu/arch/x86/kvm/x86.c
--- linux-libre-4.4-gnu/arch/x86/kvm/x86.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/kvm/x86.c	2017-12-20 04:05:01.000000000 -0500
@@ -199,7 +199,18 @@ static void kvm_on_user_return(struct us
 	struct kvm_shared_msrs *locals
 		= container_of(urn, struct kvm_shared_msrs, urn);
 	struct kvm_shared_msr_values *values;
+	unsigned long flags;
 
+	/*
+	 * Disabling irqs at this point since the following code could be
+	 * interrupted and executed through kvm_arch_hardware_disable()
+	 */
+	local_irq_save(flags);
+	if (locals->registered) {
+		locals->registered = false;
+		user_return_notifier_unregister(urn);
+	}
+	local_irq_restore(flags);
 	for (slot = 0; slot < shared_msrs_global.nr; ++slot) {
 		values = &locals->values[slot];
 		if (values->host != values->curr) {
@@ -207,8 +218,6 @@ static void kvm_on_user_return(struct us
 			values->curr = values->host;
 		}
 	}
-	locals->registered = false;
-	user_return_notifier_unregister(urn);
 }
 
 static void shared_msr_update(unsigned slot, u32 msr)
@@ -697,7 +706,6 @@ static int __kvm_set_xcr(struct kvm_vcpu
 		if ((xcr0 & XFEATURE_MASK_AVX512) != XFEATURE_MASK_AVX512)
 			return 1;
 	}
-	kvm_put_guest_xcr0(vcpu);
 	vcpu->arch.xcr0 = xcr0;
 
 	if ((xcr0 ^ old_xcr0) & XFEATURE_MASK_EXTEND)
@@ -951,7 +959,7 @@ static u32 msrs_to_save[] = {
 	MSR_CSTAR, MSR_KERNEL_GS_BASE, MSR_SYSCALL_MASK, MSR_LSTAR,
 #endif
 	MSR_IA32_TSC, MSR_IA32_CR_PAT, MSR_VM_HSAVE_PA,
-	MSR_IA32_FEATURE_CONTROL, MSR_IA32_BNDCFGS
+	MSR_IA32_FEATURE_CONTROL, MSR_IA32_BNDCFGS, MSR_TSC_AUX,
 };
 
 static unsigned num_msrs_to_save;
@@ -1804,6 +1812,9 @@ static int kvm_guest_time_update(struct
 	 */
 	BUILD_BUG_ON(offsetof(struct pvclock_vcpu_time_info, version) != 0);
 
+	if (guest_hv_clock.version & 1)
+		++guest_hv_clock.version;  /* first time write, random junk */
+
 	vcpu->hv_clock.version = guest_hv_clock.version + 1;
 	kvm_write_guest_cached(v->kvm, &vcpu->pv_time,
 				&vcpu->hv_clock,
@@ -2941,6 +2952,8 @@ static void kvm_vcpu_ioctl_x86_get_vcpu_
 	memset(&events->reserved, 0, sizeof(events->reserved));
 }
 
+static void kvm_set_hflags(struct kvm_vcpu *vcpu, unsigned emul_flags);
+
 static int kvm_vcpu_ioctl_x86_set_vcpu_events(struct kvm_vcpu *vcpu,
 					      struct kvm_vcpu_events *events)
 {
@@ -2950,6 +2963,12 @@ static int kvm_vcpu_ioctl_x86_set_vcpu_e
 			      | KVM_VCPUEVENT_VALID_SMM))
 		return -EINVAL;
 
+	/* INITs are latched while in SMM */
+	if (events->flags & KVM_VCPUEVENT_VALID_SMM &&
+	    (events->smi.smm || events->smi.pending) &&
+	    vcpu->arch.mp_state == KVM_MP_STATE_INIT_RECEIVED)
+		return -EINVAL;
+
 	process_nmi(vcpu);
 	vcpu->arch.exception.pending = events->exception.injected;
 	vcpu->arch.exception.nr = events->exception.nr;
@@ -2973,10 +2992,13 @@ static int kvm_vcpu_ioctl_x86_set_vcpu_e
 		vcpu->arch.apic->sipi_vector = events->sipi_vector;
 
 	if (events->flags & KVM_VCPUEVENT_VALID_SMM) {
+		u32 hflags = vcpu->arch.hflags;
 		if (events->smi.smm)
-			vcpu->arch.hflags |= HF_SMM_MASK;
+			hflags |= HF_SMM_MASK;
 		else
-			vcpu->arch.hflags &= ~HF_SMM_MASK;
+			hflags &= ~HF_SMM_MASK;
+		kvm_set_hflags(vcpu, hflags);
+
 		vcpu->arch.smi_pending = events->smi.pending;
 		if (events->smi.smm_inside_nmi)
 			vcpu->arch.hflags |= HF_SMM_INSIDE_NMI_MASK;
@@ -3014,6 +3036,11 @@ static int kvm_vcpu_ioctl_x86_set_debugr
 	if (dbgregs->flags)
 		return -EINVAL;
 
+	if (dbgregs->dr6 & ~0xffffffffull)
+		return -EINVAL;
+	if (dbgregs->dr7 & ~0xffffffffull)
+		return -EINVAL;
+
 	memcpy(vcpu->arch.db, dbgregs->db, sizeof(vcpu->arch.db));
 	kvm_update_dr0123(vcpu);
 	vcpu->arch.dr6 = dbgregs->dr6;
@@ -3039,6 +3066,7 @@ static void fill_xsave(u8 *dest, struct
 	memcpy(dest, xsave, XSAVE_HDR_OFFSET);
 
 	/* Set XSTATE_BV */
+	xstate_bv &= vcpu->arch.guest_supported_xcr0 | XFEATURE_MASK_FPSSE;
 	*(u64 *)(dest + XSAVE_HDR_OFFSET) = xstate_bv;
 
 	/*
@@ -3115,11 +3143,14 @@ static void kvm_vcpu_ioctl_x86_get_xsave
 	}
 }
 
+#define XSAVE_MXCSR_OFFSET 24
+
 static int kvm_vcpu_ioctl_x86_set_xsave(struct kvm_vcpu *vcpu,
 					struct kvm_xsave *guest_xsave)
 {
 	u64 xstate_bv =
 		*(u64 *)&guest_xsave->region[XSAVE_HDR_OFFSET / sizeof(u32)];
+	u32 mxcsr = *(u32 *)&guest_xsave->region[XSAVE_MXCSR_OFFSET / sizeof(u32)];
 
 	if (cpu_has_xsave) {
 		/*
@@ -3127,11 +3158,13 @@ static int kvm_vcpu_ioctl_x86_set_xsave(
 		 * CPUID leaf 0xD, index 0, EDX:EAX.  This is for compatibility
 		 * with old userspace.
 		 */
-		if (xstate_bv & ~kvm_supported_xcr0())
+		if (xstate_bv & ~kvm_supported_xcr0() ||
+			mxcsr & ~mxcsr_feature_mask)
 			return -EINVAL;
 		load_xsave(vcpu, (u8 *)guest_xsave->region);
 	} else {
-		if (xstate_bv & ~XFEATURE_MASK_FPSSE)
+		if (xstate_bv & ~XFEATURE_MASK_FPSSE ||
+			mxcsr & ~mxcsr_feature_mask)
 			return -EINVAL;
 		memcpy(&vcpu->arch.guest_fpu.state.fxsave,
 			guest_xsave->region, sizeof(struct fxregs_state));
@@ -3313,6 +3346,7 @@ long kvm_arch_vcpu_ioctl(struct file *fi
 	};
 	case KVM_SET_VAPIC_ADDR: {
 		struct kvm_vapic_addr va;
+		int idx;
 
 		r = -EINVAL;
 		if (!lapic_in_kernel(vcpu))
@@ -3320,7 +3354,9 @@ long kvm_arch_vcpu_ioctl(struct file *fi
 		r = -EFAULT;
 		if (copy_from_user(&va, argp, sizeof va))
 			goto out;
+		idx = srcu_read_lock(&vcpu->kvm->srcu);
 		r = kvm_lapic_set_vapic_addr(vcpu, va.vapic_addr);
+		srcu_read_unlock(&vcpu->kvm->srcu, idx);
 		break;
 	}
 	case KVM_X86_SETUP_MCE: {
@@ -4006,16 +4042,17 @@ static void kvm_init_msr_list(void)
 
 		/*
 		 * Even MSRs that are valid in the host may not be exposed
-		 * to the guests in some cases.  We could work around this
-		 * in VMX with the generic MSR save/load machinery, but it
-		 * is not really worthwhile since it will really only
-		 * happen with nested virtualization.
+		 * to the guests in some cases.
 		 */
 		switch (msrs_to_save[i]) {
 		case MSR_IA32_BNDCFGS:
 			if (!kvm_x86_ops->mpx_supported())
 				continue;
 			break;
+		case MSR_TSC_AUX:
+			if (!kvm_x86_ops->rdtscp_supported())
+				continue;
+			break;
 		default:
 			break;
 		}
@@ -4574,16 +4611,20 @@ emul_write:
 
 static int kernel_pio(struct kvm_vcpu *vcpu, void *pd)
 {
-	/* TODO: String I/O for in kernel device */
-	int r;
+	int r = 0, i;
 
-	if (vcpu->arch.pio.in)
-		r = kvm_io_bus_read(vcpu, KVM_PIO_BUS, vcpu->arch.pio.port,
-				    vcpu->arch.pio.size, pd);
-	else
-		r = kvm_io_bus_write(vcpu, KVM_PIO_BUS,
-				     vcpu->arch.pio.port, vcpu->arch.pio.size,
-				     pd);
+	for (i = 0; i < vcpu->arch.pio.count; i++) {
+		if (vcpu->arch.pio.in)
+			r = kvm_io_bus_read(vcpu, KVM_PIO_BUS, vcpu->arch.pio.port,
+					    vcpu->arch.pio.size, pd);
+		else
+			r = kvm_io_bus_write(vcpu, KVM_PIO_BUS,
+					     vcpu->arch.pio.port, vcpu->arch.pio.size,
+					     pd);
+		if (r)
+			break;
+		pd += vcpu->arch.pio.size;
+	}
 	return r;
 }
 
@@ -4621,6 +4662,8 @@ static int emulator_pio_in_emulated(stru
 	if (vcpu->arch.pio.count)
 		goto data_avail;
 
+	memset(vcpu->arch.pio_data, 0, size * count);
+
 	ret = emulator_pio_in_out(vcpu, size, port, val, count, true);
 	if (ret) {
 data_avail:
@@ -4804,6 +4847,8 @@ static bool emulator_get_segment(struct
 
 	if (var.unusable) {
 		memset(desc, 0, sizeof(*desc));
+		if (base3)
+			*base3 = 0;
 		return false;
 	}
 
@@ -4959,6 +5004,16 @@ static void emulator_set_nmi_mask(struct
 	kvm_x86_ops->set_nmi_mask(emul_to_vcpu(ctxt), masked);
 }
 
+static unsigned emulator_get_hflags(struct x86_emulate_ctxt *ctxt)
+{
+	return emul_to_vcpu(ctxt)->arch.hflags;
+}
+
+static void emulator_set_hflags(struct x86_emulate_ctxt *ctxt, unsigned emul_flags)
+{
+	kvm_set_hflags(emul_to_vcpu(ctxt), emul_flags);
+}
+
 static const struct x86_emulate_ops emulate_ops = {
 	.read_gpr            = emulator_read_gpr,
 	.write_gpr           = emulator_write_gpr,
@@ -4998,6 +5053,8 @@ static const struct x86_emulate_ops emul
 	.intercept           = emulator_intercept,
 	.get_cpuid           = emulator_get_cpuid,
 	.set_nmi_mask        = emulator_set_nmi_mask,
+	.get_hflags          = emulator_get_hflags,
+	.set_hflags          = emulator_set_hflags,
 };
 
 static void toggle_interruptibility(struct kvm_vcpu *vcpu, u32 mask)
@@ -5041,6 +5098,8 @@ static void init_emulate_ctxt(struct kvm
 	kvm_x86_ops->get_cs_db_l_bits(vcpu, &cs_db, &cs_l);
 
 	ctxt->eflags = kvm_get_rflags(vcpu);
+	ctxt->tf = (ctxt->eflags & X86_EFLAGS_TF) != 0;
+
 	ctxt->eip = kvm_rip_read(vcpu);
 	ctxt->mode = (!is_protmode(vcpu))		? X86EMUL_MODE_REAL :
 		     (ctxt->eflags & X86_EFLAGS_VM)	? X86EMUL_MODE_VM86 :
@@ -5050,7 +5109,6 @@ static void init_emulate_ctxt(struct kvm
 	BUILD_BUG_ON(HF_GUEST_MASK != X86EMUL_GUEST_MASK);
 	BUILD_BUG_ON(HF_SMM_MASK != X86EMUL_SMM_MASK);
 	BUILD_BUG_ON(HF_SMM_INSIDE_NMI_MASK != X86EMUL_SMM_INSIDE_NMI_MASK);
-	ctxt->emul_flags = vcpu->arch.hflags;
 
 	init_decode_cache(ctxt);
 	vcpu->arch.emulate_regs_need_sync_from_vcpu = false;
@@ -5262,37 +5320,26 @@ static int kvm_vcpu_check_hw_bp(unsigned
 	return dr6;
 }
 
-static void kvm_vcpu_check_singlestep(struct kvm_vcpu *vcpu, unsigned long rflags, int *r)
+static void kvm_vcpu_do_singlestep(struct kvm_vcpu *vcpu, int *r)
 {
 	struct kvm_run *kvm_run = vcpu->run;
 
-	/*
-	 * rflags is the old, "raw" value of the flags.  The new value has
-	 * not been saved yet.
-	 *
-	 * This is correct even for TF set by the guest, because "the
-	 * processor will not generate this exception after the instruction
-	 * that sets the TF flag".
-	 */
-	if (unlikely(rflags & X86_EFLAGS_TF)) {
-		if (vcpu->guest_debug & KVM_GUESTDBG_SINGLESTEP) {
-			kvm_run->debug.arch.dr6 = DR6_BS | DR6_FIXED_1 |
-						  DR6_RTM;
-			kvm_run->debug.arch.pc = vcpu->arch.singlestep_rip;
-			kvm_run->debug.arch.exception = DB_VECTOR;
-			kvm_run->exit_reason = KVM_EXIT_DEBUG;
-			*r = EMULATE_USER_EXIT;
-		} else {
-			vcpu->arch.emulate_ctxt.eflags &= ~X86_EFLAGS_TF;
-			/*
-			 * "Certain debug exceptions may clear bit 0-3.  The
-			 * remaining contents of the DR6 register are never
-			 * cleared by the processor".
-			 */
-			vcpu->arch.dr6 &= ~15;
-			vcpu->arch.dr6 |= DR6_BS | DR6_RTM;
-			kvm_queue_exception(vcpu, DB_VECTOR);
-		}
+	if (vcpu->guest_debug & KVM_GUESTDBG_SINGLESTEP) {
+		kvm_run->debug.arch.dr6 = DR6_BS | DR6_FIXED_1 | DR6_RTM;
+		kvm_run->debug.arch.pc = vcpu->arch.singlestep_rip;
+		kvm_run->debug.arch.exception = DB_VECTOR;
+		kvm_run->exit_reason = KVM_EXIT_DEBUG;
+		*r = EMULATE_USER_EXIT;
+	} else {
+		vcpu->arch.emulate_ctxt.eflags &= ~X86_EFLAGS_TF;
+		/*
+		 * "Certain debug exceptions may clear bit 0-3.  The
+		 * remaining contents of the DR6 register are never
+		 * cleared by the processor".
+		 */
+		vcpu->arch.dr6 &= ~15;
+		vcpu->arch.dr6 |= DR6_BS | DR6_RTM;
+		kvm_queue_exception(vcpu, DB_VECTOR);
 	}
 }
 
@@ -5382,6 +5429,8 @@ int x86_emulate_instruction(struct kvm_v
 			if (reexecute_instruction(vcpu, cr2, write_fault_to_spt,
 						emulation_type))
 				return EMULATE_DONE;
+			if (ctxt->have_exception && inject_emulated_exception(vcpu))
+				return EMULATE_DONE;
 			if (emulation_type & EMULTYPE_SKIP)
 				return EMULATE_FAIL;
 			return handle_emulation_failure(vcpu);
@@ -5446,11 +5495,10 @@ restart:
 		unsigned long rflags = kvm_x86_ops->get_rflags(vcpu);
 		toggle_interruptibility(vcpu, ctxt->interruptibility);
 		vcpu->arch.emulate_regs_need_sync_to_vcpu = false;
-		if (vcpu->arch.hflags != ctxt->emul_flags)
-			kvm_set_hflags(vcpu, ctxt->emul_flags);
 		kvm_rip_write(vcpu, ctxt->eip);
-		if (r == EMULATE_DONE)
-			kvm_vcpu_check_singlestep(vcpu, rflags, &r);
+		if (r == EMULATE_DONE &&
+		    (ctxt->tf || (vcpu->guest_debug & KVM_GUESTDBG_SINGLESTEP)))
+			kvm_vcpu_do_singlestep(vcpu, &r);
 		if (!ctxt->have_exception ||
 		    exception_type(ctxt->exception.vector) == EXCPT_TRAP)
 			__kvm_set_rflags(vcpu, ctxt->eflags);
@@ -5820,6 +5868,7 @@ out:
 
 void kvm_arch_exit(void)
 {
+	kvm_lapic_exit();
 	perf_unregister_guest_info_callbacks(&kvm_guest_cbs);
 
 	if (!boot_cpu_has(X86_FEATURE_CONSTANT_TSC))
@@ -5933,7 +5982,8 @@ static int emulator_fix_hypercall(struct
 
 	kvm_x86_ops->patch_hypercall(vcpu, instruction);
 
-	return emulator_write_emulated(ctxt, rip, instruction, 3, NULL);
+	return emulator_write_emulated(ctxt, rip, instruction, 3,
+		&ctxt->exception);
 }
 
 static int dm_request_for_irq_injection(struct kvm_vcpu *vcpu)
@@ -6022,12 +6072,10 @@ static int inject_pending_event(struct k
 	}
 
 	/* try to inject new event if pending */
-	if (vcpu->arch.nmi_pending) {
-		if (kvm_x86_ops->nmi_allowed(vcpu)) {
-			--vcpu->arch.nmi_pending;
-			vcpu->arch.nmi_injected = true;
-			kvm_x86_ops->set_nmi(vcpu);
-		}
+	if (vcpu->arch.nmi_pending && kvm_x86_ops->nmi_allowed(vcpu)) {
+		--vcpu->arch.nmi_pending;
+		vcpu->arch.nmi_injected = true;
+		kvm_x86_ops->set_nmi(vcpu);
 	} else if (kvm_cpu_has_injectable_intr(vcpu)) {
 		/*
 		 * Because interrupts can be injected asynchronously, we are
@@ -6472,10 +6520,12 @@ static int vcpu_enter_guest(struct kvm_v
 		if (inject_pending_event(vcpu, req_int_win) != 0)
 			req_immediate_exit = true;
 		/* enable NMI/IRQ window open exits if needed */
-		else if (vcpu->arch.nmi_pending)
-			kvm_x86_ops->enable_nmi_window(vcpu);
-		else if (kvm_cpu_has_injectable_intr(vcpu) || req_int_win)
-			kvm_x86_ops->enable_irq_window(vcpu);
+		else {
+			if (vcpu->arch.nmi_pending)
+				kvm_x86_ops->enable_nmi_window(vcpu);
+			if (kvm_cpu_has_injectable_intr(vcpu) || req_int_win)
+				kvm_x86_ops->enable_irq_window(vcpu);
+		}
 
 		if (kvm_lapic_enabled(vcpu)) {
 			update_cr8_intercept(vcpu);
@@ -6493,8 +6543,6 @@ static int vcpu_enter_guest(struct kvm_v
 	kvm_x86_ops->prepare_guest_switch(vcpu);
 	if (vcpu->fpu_active)
 		kvm_load_guest_fpu(vcpu);
-	kvm_load_guest_xcr0(vcpu);
-
 	vcpu->mode = IN_GUEST_MODE;
 
 	srcu_read_unlock(&vcpu->kvm->srcu, vcpu->srcu_idx);
@@ -6517,6 +6565,8 @@ static int vcpu_enter_guest(struct kvm_v
 		goto cancel_injection;
 	}
 
+	kvm_load_guest_xcr0(vcpu);
+
 	if (req_immediate_exit)
 		smp_send_reschedule(vcpu->cpu);
 
@@ -6543,12 +6593,12 @@ static int vcpu_enter_guest(struct kvm_v
 	 * KVM_DEBUGREG_WONT_EXIT again.
 	 */
 	if (unlikely(vcpu->arch.switch_db_regs & KVM_DEBUGREG_WONT_EXIT)) {
-		int i;
-
 		WARN_ON(vcpu->guest_debug & KVM_GUESTDBG_USE_HW_BP);
 		kvm_x86_ops->sync_dirty_debug_regs(vcpu);
-		for (i = 0; i < KVM_NR_DB_REGS; i++)
-			vcpu->arch.eff_db[i] = vcpu->arch.db[i];
+		kvm_update_dr0123(vcpu);
+		kvm_update_dr6(vcpu);
+		kvm_update_dr7(vcpu);
+		vcpu->arch.switch_db_regs &= ~KVM_DEBUGREG_RELOAD;
 	}
 
 	/*
@@ -6566,6 +6616,8 @@ static int vcpu_enter_guest(struct kvm_v
 	vcpu->mode = OUTSIDE_GUEST_MODE;
 	smp_wmb();
 
+	kvm_put_guest_xcr0(vcpu);
+
 	/* Interrupt is enabled by handle_external_intr() */
 	kvm_x86_ops->handle_external_intr(vcpu);
 
@@ -6967,6 +7019,12 @@ int kvm_arch_vcpu_ioctl_set_mpstate(stru
 	    mp_state->mp_state != KVM_MP_STATE_RUNNABLE)
 		return -EINVAL;
 
+	/* INITs are latched while in SMM */
+	if ((is_smm(vcpu) || vcpu->arch.smi_pending) &&
+	    (mp_state->mp_state == KVM_MP_STATE_SIPI_RECEIVED ||
+	     mp_state->mp_state == KVM_MP_STATE_INIT_RECEIVED))
+		return -EINVAL;
+
 	if (mp_state->mp_state == KVM_MP_STATE_SIPI_RECEIVED) {
 		vcpu->arch.mp_state = KVM_MP_STATE_INIT_RECEIVED;
 		set_bit(KVM_APIC_SIPI, &vcpu->arch.apic->pending_events);
@@ -7213,7 +7271,6 @@ void kvm_load_guest_fpu(struct kvm_vcpu
 	 * and assume host would use all available bits.
 	 * Guest xcr0 would be loaded later.
 	 */
-	kvm_put_guest_xcr0(vcpu);
 	vcpu->guest_fpu_loaded = 1;
 	__kernel_fpu_begin();
 	__copy_kernel_to_fpregs(&vcpu->arch.guest_fpu.state);
@@ -7222,8 +7279,6 @@ void kvm_load_guest_fpu(struct kvm_vcpu
 
 void kvm_put_guest_fpu(struct kvm_vcpu *vcpu)
 {
-	kvm_put_guest_xcr0(vcpu);
-
 	if (!vcpu->guest_fpu_loaded) {
 		vcpu->fpu_counter = 0;
 		return;
@@ -7248,10 +7303,12 @@ void kvm_put_guest_fpu(struct kvm_vcpu *
 
 void kvm_arch_vcpu_free(struct kvm_vcpu *vcpu)
 {
+	void *wbinvd_dirty_mask = vcpu->arch.wbinvd_dirty_mask;
+
 	kvmclock_reset(vcpu);
 
-	free_cpumask_var(vcpu->arch.wbinvd_dirty_mask);
 	kvm_x86_ops->vcpu_free(vcpu);
+	free_cpumask_var(wbinvd_dirty_mask);
 }
 
 struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm,
@@ -8197,8 +8254,7 @@ bool kvm_arch_can_inject_async_page_pres
 	if (!(vcpu->arch.apf.msr_val & KVM_ASYNC_PF_ENABLED))
 		return true;
 	else
-		return !kvm_event_needs_reinjection(vcpu) &&
-			kvm_x86_ops->interrupt_allowed(vcpu);
+		return kvm_can_do_async_pf(vcpu);
 }
 
 void kvm_arch_start_assignment(struct kvm *kvm)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/lib/copy_user_64.S linux-libre-4.4.107-gnu/arch/x86/lib/copy_user_64.S
--- linux-libre-4.4-gnu/arch/x86/lib/copy_user_64.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/lib/copy_user_64.S	2017-12-20 04:05:01.000000000 -0500
@@ -80,7 +80,7 @@ ENTRY(copy_user_generic_unrolled)
 	movl %edx,%ecx
 	andl $63,%edx
 	shrl $6,%ecx
-	jz 17f
+	jz .L_copy_short_string
 1:	movq (%rsi),%r8
 2:	movq 1*8(%rsi),%r9
 3:	movq 2*8(%rsi),%r10
@@ -101,7 +101,8 @@ ENTRY(copy_user_generic_unrolled)
 	leaq 64(%rdi),%rdi
 	decl %ecx
 	jnz 1b
-17:	movl %edx,%ecx
+.L_copy_short_string:
+	movl %edx,%ecx
 	andl $7,%edx
 	shrl $3,%ecx
 	jz 20f
@@ -215,6 +216,8 @@ ENDPROC(copy_user_generic_string)
  */
 ENTRY(copy_user_enhanced_fast_string)
 	ASM_STAC
+	cmpl $64,%edx
+	jb .L_copy_short_string	/* less then 64 bytes, avoid the costly 'rep' */
 	movl %edx,%ecx
 1:	rep
 	movsb
@@ -232,17 +235,31 @@ ENDPROC(copy_user_enhanced_fast_string)
 
 /*
  * copy_user_nocache - Uncached memory copy with exception handling
- * This will force destination/source out of cache for more performance.
+ * This will force destination out of cache for more performance.
+ *
+ * Note: Cached memory copy is used when destination or size is not
+ * naturally aligned. That is:
+ *  - Require 8-byte alignment when size is 8 bytes or larger.
+ *  - Require 4-byte alignment when size is 4 bytes.
  */
 ENTRY(__copy_user_nocache)
 	ASM_STAC
+
+	/* If size is less than 8 bytes, go to 4-byte copy */
 	cmpl $8,%edx
-	jb 20f		/* less then 8 bytes, go to byte copy loop */
+	jb .L_4b_nocache_copy_entry
+
+	/* If destination is not 8-byte aligned, "cache" copy to align it */
 	ALIGN_DESTINATION
+
+	/* Set 4x8-byte copy count and remainder */
 	movl %edx,%ecx
 	andl $63,%edx
 	shrl $6,%ecx
-	jz 17f
+	jz .L_8b_nocache_copy_entry	/* jump if count is 0 */
+
+	/* Perform 4x8-byte nocache loop-copy */
+.L_4x8b_nocache_copy_loop:
 1:	movq (%rsi),%r8
 2:	movq 1*8(%rsi),%r9
 3:	movq 2*8(%rsi),%r10
@@ -262,60 +279,106 @@ ENTRY(__copy_user_nocache)
 	leaq 64(%rsi),%rsi
 	leaq 64(%rdi),%rdi
 	decl %ecx
-	jnz 1b
-17:	movl %edx,%ecx
+	jnz .L_4x8b_nocache_copy_loop
+
+	/* Set 8-byte copy count and remainder */
+.L_8b_nocache_copy_entry:
+	movl %edx,%ecx
 	andl $7,%edx
 	shrl $3,%ecx
-	jz 20f
-18:	movq (%rsi),%r8
-19:	movnti %r8,(%rdi)
+	jz .L_4b_nocache_copy_entry	/* jump if count is 0 */
+
+	/* Perform 8-byte nocache loop-copy */
+.L_8b_nocache_copy_loop:
+20:	movq (%rsi),%r8
+21:	movnti %r8,(%rdi)
 	leaq 8(%rsi),%rsi
 	leaq 8(%rdi),%rdi
 	decl %ecx
-	jnz 18b
-20:	andl %edx,%edx
-	jz 23f
+	jnz .L_8b_nocache_copy_loop
+
+	/* If no byte left, we're done */
+.L_4b_nocache_copy_entry:
+	andl %edx,%edx
+	jz .L_finish_copy
+
+	/* If destination is not 4-byte aligned, go to byte copy: */
+	movl %edi,%ecx
+	andl $3,%ecx
+	jnz .L_1b_cache_copy_entry
+
+	/* Set 4-byte copy count (1 or 0) and remainder */
 	movl %edx,%ecx
-21:	movb (%rsi),%al
-22:	movb %al,(%rdi)
+	andl $3,%edx
+	shrl $2,%ecx
+	jz .L_1b_cache_copy_entry	/* jump if count is 0 */
+
+	/* Perform 4-byte nocache copy: */
+30:	movl (%rsi),%r8d
+31:	movnti %r8d,(%rdi)
+	leaq 4(%rsi),%rsi
+	leaq 4(%rdi),%rdi
+
+	/* If no bytes left, we're done: */
+	andl %edx,%edx
+	jz .L_finish_copy
+
+	/* Perform byte "cache" loop-copy for the remainder */
+.L_1b_cache_copy_entry:
+	movl %edx,%ecx
+.L_1b_cache_copy_loop:
+40:	movb (%rsi),%al
+41:	movb %al,(%rdi)
 	incq %rsi
 	incq %rdi
 	decl %ecx
-	jnz 21b
-23:	xorl %eax,%eax
+	jnz .L_1b_cache_copy_loop
+
+	/* Finished copying; fence the prior stores */
+.L_finish_copy:
+	xorl %eax,%eax
 	ASM_CLAC
 	sfence
 	ret
 
 	.section .fixup,"ax"
-30:	shll $6,%ecx
+.L_fixup_4x8b_copy:
+	shll $6,%ecx
 	addl %ecx,%edx
-	jmp 60f
-40:	lea (%rdx,%rcx,8),%rdx
-	jmp 60f
-50:	movl %ecx,%edx
-60:	sfence
+	jmp .L_fixup_handle_tail
+.L_fixup_8b_copy:
+	lea (%rdx,%rcx,8),%rdx
+	jmp .L_fixup_handle_tail
+.L_fixup_4b_copy:
+	lea (%rdx,%rcx,4),%rdx
+	jmp .L_fixup_handle_tail
+.L_fixup_1b_copy:
+	movl %ecx,%edx
+.L_fixup_handle_tail:
+	sfence
 	jmp copy_user_handle_tail
 	.previous
 
-	_ASM_EXTABLE(1b,30b)
-	_ASM_EXTABLE(2b,30b)
-	_ASM_EXTABLE(3b,30b)
-	_ASM_EXTABLE(4b,30b)
-	_ASM_EXTABLE(5b,30b)
-	_ASM_EXTABLE(6b,30b)
-	_ASM_EXTABLE(7b,30b)
-	_ASM_EXTABLE(8b,30b)
-	_ASM_EXTABLE(9b,30b)
-	_ASM_EXTABLE(10b,30b)
-	_ASM_EXTABLE(11b,30b)
-	_ASM_EXTABLE(12b,30b)
-	_ASM_EXTABLE(13b,30b)
-	_ASM_EXTABLE(14b,30b)
-	_ASM_EXTABLE(15b,30b)
-	_ASM_EXTABLE(16b,30b)
-	_ASM_EXTABLE(18b,40b)
-	_ASM_EXTABLE(19b,40b)
-	_ASM_EXTABLE(21b,50b)
-	_ASM_EXTABLE(22b,50b)
+	_ASM_EXTABLE(1b,.L_fixup_4x8b_copy)
+	_ASM_EXTABLE(2b,.L_fixup_4x8b_copy)
+	_ASM_EXTABLE(3b,.L_fixup_4x8b_copy)
+	_ASM_EXTABLE(4b,.L_fixup_4x8b_copy)
+	_ASM_EXTABLE(5b,.L_fixup_4x8b_copy)
+	_ASM_EXTABLE(6b,.L_fixup_4x8b_copy)
+	_ASM_EXTABLE(7b,.L_fixup_4x8b_copy)
+	_ASM_EXTABLE(8b,.L_fixup_4x8b_copy)
+	_ASM_EXTABLE(9b,.L_fixup_4x8b_copy)
+	_ASM_EXTABLE(10b,.L_fixup_4x8b_copy)
+	_ASM_EXTABLE(11b,.L_fixup_4x8b_copy)
+	_ASM_EXTABLE(12b,.L_fixup_4x8b_copy)
+	_ASM_EXTABLE(13b,.L_fixup_4x8b_copy)
+	_ASM_EXTABLE(14b,.L_fixup_4x8b_copy)
+	_ASM_EXTABLE(15b,.L_fixup_4x8b_copy)
+	_ASM_EXTABLE(16b,.L_fixup_4x8b_copy)
+	_ASM_EXTABLE(20b,.L_fixup_8b_copy)
+	_ASM_EXTABLE(21b,.L_fixup_8b_copy)
+	_ASM_EXTABLE(30b,.L_fixup_4b_copy)
+	_ASM_EXTABLE(31b,.L_fixup_4b_copy)
+	_ASM_EXTABLE(40b,.L_fixup_1b_copy)
+	_ASM_EXTABLE(41b,.L_fixup_1b_copy)
 ENDPROC(__copy_user_nocache)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/lib/x86-opcode-map.txt linux-libre-4.4.107-gnu/arch/x86/lib/x86-opcode-map.txt
--- linux-libre-4.4-gnu/arch/x86/lib/x86-opcode-map.txt	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/lib/x86-opcode-map.txt	2017-12-20 04:05:01.000000000 -0500
@@ -833,7 +833,7 @@ EndTable
 
 GrpTable: Grp3_1
 0: TEST Eb,Ib
-1:
+1: TEST Eb,Ib
 2: NOT Eb
 3: NEG Eb
 4: MUL AL,Eb
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/mm/fault.c linux-libre-4.4.107-gnu/arch/x86/mm/fault.c
--- linux-libre-4.4-gnu/arch/x86/mm/fault.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/mm/fault.c	2017-12-20 04:05:01.000000000 -0500
@@ -287,6 +287,9 @@ static noinline int vmalloc_fault(unsign
 	if (!pmd_k)
 		return -1;
 
+	if (pmd_huge(*pmd_k))
+		return 0;
+
 	pte_k = pte_offset_kernel(pmd_k, address);
 	if (!pte_present(*pte_k))
 		return -1;
@@ -360,8 +363,6 @@ void vmalloc_sync_all(void)
  * 64-bit:
  *
  *   Handle a fault on the vmalloc area
- *
- * This assumes no large pages in there.
  */
 static noinline int vmalloc_fault(unsigned long address)
 {
@@ -403,17 +404,23 @@ static noinline int vmalloc_fault(unsign
 	if (pud_none(*pud_ref))
 		return -1;
 
-	if (pud_none(*pud) || pud_page_vaddr(*pud) != pud_page_vaddr(*pud_ref))
+	if (pud_none(*pud) || pud_pfn(*pud) != pud_pfn(*pud_ref))
 		BUG();
 
+	if (pud_huge(*pud))
+		return 0;
+
 	pmd = pmd_offset(pud, address);
 	pmd_ref = pmd_offset(pud_ref, address);
 	if (pmd_none(*pmd_ref))
 		return -1;
 
-	if (pmd_none(*pmd) || pmd_page(*pmd) != pmd_page(*pmd_ref))
+	if (pmd_none(*pmd) || pmd_pfn(*pmd) != pmd_pfn(*pmd_ref))
 		BUG();
 
+	if (pmd_huge(*pmd))
+		return 0;
+
 	pte_ref = pte_offset_kernel(pmd_ref, address);
 	if (!pte_present(*pte_ref))
 		return -1;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/mm/hugetlbpage.c linux-libre-4.4.107-gnu/arch/x86/mm/hugetlbpage.c
--- linux-libre-4.4-gnu/arch/x86/mm/hugetlbpage.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/mm/hugetlbpage.c	2017-12-20 04:05:01.000000000 -0500
@@ -144,7 +144,7 @@ hugetlb_get_unmapped_area(struct file *f
 		addr = ALIGN(addr, huge_page_size(h));
 		vma = find_vma(mm, addr);
 		if (TASK_SIZE - len >= addr &&
-		    (!vma || addr + len <= vma->vm_start))
+		    (!vma || addr + len <= vm_start_gap(vma)))
 			return addr;
 	}
 	if (mm->get_unmapped_area == arch_get_unmapped_area)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/mm/init.c linux-libre-4.4.107-gnu/arch/x86/mm/init.c
--- linux-libre-4.4-gnu/arch/x86/mm/init.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/mm/init.c	2017-12-20 04:05:01.000000000 -0500
@@ -628,21 +628,40 @@ void __init init_mem_mapping(void)
  * devmem_is_allowed() checks to see if /dev/mem access to a certain address
  * is valid. The argument is a physical page number.
  *
- *
- * On x86, access has to be given to the first megabyte of ram because that area
- * contains BIOS code and data regions used by X and dosemu and similar apps.
- * Access has to be given to non-kernel-ram areas as well, these contain the PCI
- * mmio resources as well as potential bios/acpi data regions.
+ * On x86, access has to be given to the first megabyte of RAM because that
+ * area traditionally contains BIOS code and data regions used by X, dosemu,
+ * and similar apps. Since they map the entire memory range, the whole range
+ * must be allowed (for mapping), but any areas that would otherwise be
+ * disallowed are flagged as being "zero filled" instead of rejected.
+ * Access has to be given to non-kernel-ram areas as well, these contain the
+ * PCI mmio resources as well as potential bios/acpi data regions.
  */
 int devmem_is_allowed(unsigned long pagenr)
 {
-	if (pagenr < 256)
-		return 1;
-	if (iomem_is_exclusive(pagenr << PAGE_SHIFT))
+	if (page_is_ram(pagenr)) {
+		/*
+		 * For disallowed memory regions in the low 1MB range,
+		 * request that the page be shown as all zeros.
+		 */
+		if (pagenr < 256)
+			return 2;
+
 		return 0;
-	if (!page_is_ram(pagenr))
-		return 1;
-	return 0;
+	}
+
+	/*
+	 * This must follow RAM test, since System RAM is considered a
+	 * restricted resource under CONFIG_STRICT_IOMEM.
+	 */
+	if (iomem_is_exclusive(pagenr << PAGE_SHIFT)) {
+		/* Low 1MB bypasses iomem restrictions. */
+		if (pagenr < 256)
+			return 1;
+
+		return 0;
+	}
+
+	return 1;
 }
 
 void free_init_pages(char *what, unsigned long begin, unsigned long end)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/mm/kasan_init_64.c linux-libre-4.4.107-gnu/arch/x86/mm/kasan_init_64.c
--- linux-libre-4.4-gnu/arch/x86/mm/kasan_init_64.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/mm/kasan_init_64.c	2017-12-20 04:05:01.000000000 -0500
@@ -1,3 +1,4 @@
+#define DISABLE_BRANCH_PROFILING
 #define pr_fmt(fmt) "kasan: " fmt
 #include <linux/bootmem.h>
 #include <linux/kasan.h>
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/mm/kmmio.c linux-libre-4.4.107-gnu/arch/x86/mm/kmmio.c
--- linux-libre-4.4-gnu/arch/x86/mm/kmmio.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/mm/kmmio.c	2017-12-20 04:05:01.000000000 -0500
@@ -33,7 +33,7 @@
 struct kmmio_fault_page {
 	struct list_head list;
 	struct kmmio_fault_page *release_next;
-	unsigned long page; /* location of the fault page */
+	unsigned long addr; /* the requested address */
 	pteval_t old_presence; /* page presence prior to arming */
 	bool armed;
 
@@ -70,9 +70,16 @@ unsigned int kmmio_count;
 static struct list_head kmmio_page_table[KMMIO_PAGE_TABLE_SIZE];
 static LIST_HEAD(kmmio_probes);
 
-static struct list_head *kmmio_page_list(unsigned long page)
+static struct list_head *kmmio_page_list(unsigned long addr)
 {
-	return &kmmio_page_table[hash_long(page, KMMIO_PAGE_HASH_BITS)];
+	unsigned int l;
+	pte_t *pte = lookup_address(addr, &l);
+
+	if (!pte)
+		return NULL;
+	addr &= page_level_mask(l);
+
+	return &kmmio_page_table[hash_long(addr, KMMIO_PAGE_HASH_BITS)];
 }
 
 /* Accessed per-cpu */
@@ -98,15 +105,19 @@ static struct kmmio_probe *get_kmmio_pro
 }
 
 /* You must be holding RCU read lock. */
-static struct kmmio_fault_page *get_kmmio_fault_page(unsigned long page)
+static struct kmmio_fault_page *get_kmmio_fault_page(unsigned long addr)
 {
 	struct list_head *head;
 	struct kmmio_fault_page *f;
+	unsigned int l;
+	pte_t *pte = lookup_address(addr, &l);
 
-	page &= PAGE_MASK;
-	head = kmmio_page_list(page);
+	if (!pte)
+		return NULL;
+	addr &= page_level_mask(l);
+	head = kmmio_page_list(addr);
 	list_for_each_entry_rcu(f, head, list) {
-		if (f->page == page)
+		if (f->addr == addr)
 			return f;
 	}
 	return NULL;
@@ -137,10 +148,10 @@ static void clear_pte_presence(pte_t *pt
 static int clear_page_presence(struct kmmio_fault_page *f, bool clear)
 {
 	unsigned int level;
-	pte_t *pte = lookup_address(f->page, &level);
+	pte_t *pte = lookup_address(f->addr, &level);
 
 	if (!pte) {
-		pr_err("no pte for page 0x%08lx\n", f->page);
+		pr_err("no pte for addr 0x%08lx\n", f->addr);
 		return -1;
 	}
 
@@ -156,7 +167,7 @@ static int clear_page_presence(struct km
 		return -1;
 	}
 
-	__flush_tlb_one(f->page);
+	__flush_tlb_one(f->addr);
 	return 0;
 }
 
@@ -176,12 +187,12 @@ static int arm_kmmio_fault_page(struct k
 	int ret;
 	WARN_ONCE(f->armed, KERN_ERR pr_fmt("kmmio page already armed.\n"));
 	if (f->armed) {
-		pr_warning("double-arm: page 0x%08lx, ref %d, old %d\n",
-			   f->page, f->count, !!f->old_presence);
+		pr_warning("double-arm: addr 0x%08lx, ref %d, old %d\n",
+			   f->addr, f->count, !!f->old_presence);
 	}
 	ret = clear_page_presence(f, true);
-	WARN_ONCE(ret < 0, KERN_ERR pr_fmt("arming 0x%08lx failed.\n"),
-		  f->page);
+	WARN_ONCE(ret < 0, KERN_ERR pr_fmt("arming at 0x%08lx failed.\n"),
+		  f->addr);
 	f->armed = true;
 	return ret;
 }
@@ -191,7 +202,7 @@ static void disarm_kmmio_fault_page(stru
 {
 	int ret = clear_page_presence(f, false);
 	WARN_ONCE(ret < 0,
-			KERN_ERR "kmmio disarming 0x%08lx failed.\n", f->page);
+			KERN_ERR "kmmio disarming at 0x%08lx failed.\n", f->addr);
 	f->armed = false;
 }
 
@@ -215,6 +226,12 @@ int kmmio_handler(struct pt_regs *regs,
 	struct kmmio_context *ctx;
 	struct kmmio_fault_page *faultpage;
 	int ret = 0; /* default to fault not handled */
+	unsigned long page_base = addr;
+	unsigned int l;
+	pte_t *pte = lookup_address(addr, &l);
+	if (!pte)
+		return -EINVAL;
+	page_base &= page_level_mask(l);
 
 	/*
 	 * Preemption is now disabled to prevent process switch during
@@ -227,7 +244,7 @@ int kmmio_handler(struct pt_regs *regs,
 	preempt_disable();
 	rcu_read_lock();
 
-	faultpage = get_kmmio_fault_page(addr);
+	faultpage = get_kmmio_fault_page(page_base);
 	if (!faultpage) {
 		/*
 		 * Either this page fault is not caused by kmmio, or
@@ -239,7 +256,7 @@ int kmmio_handler(struct pt_regs *regs,
 
 	ctx = &get_cpu_var(kmmio_ctx);
 	if (ctx->active) {
-		if (addr == ctx->addr) {
+		if (page_base == ctx->addr) {
 			/*
 			 * A second fault on the same page means some other
 			 * condition needs handling by do_page_fault(), the
@@ -267,9 +284,9 @@ int kmmio_handler(struct pt_regs *regs,
 	ctx->active++;
 
 	ctx->fpage = faultpage;
-	ctx->probe = get_kmmio_probe(addr);
+	ctx->probe = get_kmmio_probe(page_base);
 	ctx->saved_flags = (regs->flags & (X86_EFLAGS_TF | X86_EFLAGS_IF));
-	ctx->addr = addr;
+	ctx->addr = page_base;
 
 	if (ctx->probe && ctx->probe->pre_handler)
 		ctx->probe->pre_handler(ctx->probe, regs, addr);
@@ -354,12 +371,11 @@ out:
 }
 
 /* You must be holding kmmio_lock. */
-static int add_kmmio_fault_page(unsigned long page)
+static int add_kmmio_fault_page(unsigned long addr)
 {
 	struct kmmio_fault_page *f;
 
-	page &= PAGE_MASK;
-	f = get_kmmio_fault_page(page);
+	f = get_kmmio_fault_page(addr);
 	if (f) {
 		if (!f->count)
 			arm_kmmio_fault_page(f);
@@ -372,26 +388,25 @@ static int add_kmmio_fault_page(unsigned
 		return -1;
 
 	f->count = 1;
-	f->page = page;
+	f->addr = addr;
 
 	if (arm_kmmio_fault_page(f)) {
 		kfree(f);
 		return -1;
 	}
 
-	list_add_rcu(&f->list, kmmio_page_list(f->page));
+	list_add_rcu(&f->list, kmmio_page_list(f->addr));
 
 	return 0;
 }
 
 /* You must be holding kmmio_lock. */
-static void release_kmmio_fault_page(unsigned long page,
+static void release_kmmio_fault_page(unsigned long addr,
 				struct kmmio_fault_page **release_list)
 {
 	struct kmmio_fault_page *f;
 
-	page &= PAGE_MASK;
-	f = get_kmmio_fault_page(page);
+	f = get_kmmio_fault_page(addr);
 	if (!f)
 		return;
 
@@ -420,18 +435,27 @@ int register_kmmio_probe(struct kmmio_pr
 	int ret = 0;
 	unsigned long size = 0;
 	const unsigned long size_lim = p->len + (p->addr & ~PAGE_MASK);
+	unsigned int l;
+	pte_t *pte;
 
 	spin_lock_irqsave(&kmmio_lock, flags);
 	if (get_kmmio_probe(p->addr)) {
 		ret = -EEXIST;
 		goto out;
 	}
+
+	pte = lookup_address(p->addr, &l);
+	if (!pte) {
+		ret = -EINVAL;
+		goto out;
+	}
+
 	kmmio_count++;
 	list_add_rcu(&p->list, &kmmio_probes);
 	while (size < size_lim) {
 		if (add_kmmio_fault_page(p->addr + size))
 			pr_err("Unable to set page fault.\n");
-		size += PAGE_SIZE;
+		size += page_level_size(l);
 	}
 out:
 	spin_unlock_irqrestore(&kmmio_lock, flags);
@@ -506,11 +530,17 @@ void unregister_kmmio_probe(struct kmmio
 	const unsigned long size_lim = p->len + (p->addr & ~PAGE_MASK);
 	struct kmmio_fault_page *release_list = NULL;
 	struct kmmio_delayed_release *drelease;
+	unsigned int l;
+	pte_t *pte;
+
+	pte = lookup_address(p->addr, &l);
+	if (!pte)
+		return;
 
 	spin_lock_irqsave(&kmmio_lock, flags);
 	while (size < size_lim) {
 		release_kmmio_fault_page(p->addr + size, &release_list);
-		size += PAGE_SIZE;
+		size += page_level_size(l);
 	}
 	list_del_rcu(&p->list);
 	kmmio_count--;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/mm/mmap.c linux-libre-4.4.107-gnu/arch/x86/mm/mmap.c
--- linux-libre-4.4-gnu/arch/x86/mm/mmap.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/mm/mmap.c	2017-12-20 04:05:01.000000000 -0500
@@ -94,18 +94,6 @@ static unsigned long mmap_base(unsigned
 }
 
 /*
- * Bottom-up (legacy) layout on X86_32 did not support randomization, X86_64
- * does, but not when emulating X86_32
- */
-static unsigned long mmap_legacy_base(unsigned long rnd)
-{
-	if (mmap_is_ia32())
-		return TASK_UNMAPPED_BASE;
-	else
-		return TASK_UNMAPPED_BASE + rnd;
-}
-
-/*
  * This function, called very early during the creation of a new
  * process VM image, sets up which VM layout function to use:
  */
@@ -116,7 +104,7 @@ void arch_pick_mmap_layout(struct mm_str
 	if (current->flags & PF_RANDOMIZE)
 		random_factor = arch_mmap_rnd();
 
-	mm->mmap_legacy_base = mmap_legacy_base(random_factor);
+	mm->mmap_legacy_base = TASK_UNMAPPED_BASE + random_factor;
 
 	if (mmap_is_legacy()) {
 		mm->mmap_base = mm->mmap_legacy_base;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/mm/mpx.c linux-libre-4.4.107-gnu/arch/x86/mm/mpx.c
--- linux-libre-4.4-gnu/arch/x86/mm/mpx.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/mm/mpx.c	2017-12-20 04:05:01.000000000 -0500
@@ -123,7 +123,7 @@ static int get_reg_offset(struct insn *i
 		break;
 	}
 
-	if (regno > nr_registers) {
+	if (regno >= nr_registers) {
 		WARN_ONCE(1, "decoded an instruction with an invalid register");
 		return -EINVAL;
 	}
@@ -293,7 +293,7 @@ siginfo_t *mpx_generate_siginfo(struct p
 	 * We were not able to extract an address from the instruction,
 	 * probably because there was something invalid in it.
 	 */
-	if (info->si_addr == (void *)-1) {
+	if (info->si_addr == (void __user *)-1) {
 		err = -EINVAL;
 		goto err_out;
 	}
@@ -525,15 +525,7 @@ int mpx_handle_bd_fault(void)
 	if (!kernel_managing_mpx_tables(current->mm))
 		return -EINVAL;
 
-	if (do_mpx_bt_fault()) {
-		force_sig(SIGSEGV, current);
-		/*
-		 * The force_sig() is essentially "handling" this
-		 * exception, so we do not pass up the error
-		 * from do_mpx_bt_fault().
-		 */
-	}
-	return 0;
+	return do_mpx_bt_fault();
 }
 
 /*
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/mm/numa_32.c linux-libre-4.4.107-gnu/arch/x86/mm/numa_32.c
--- linux-libre-4.4-gnu/arch/x86/mm/numa_32.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/mm/numa_32.c	2017-12-20 04:05:01.000000000 -0500
@@ -100,5 +100,6 @@ void __init initmem_init(void)
 	printk(KERN_DEBUG "High memory starts at vaddr %08lx\n",
 			(ulong) pfn_to_kaddr(highstart_pfn));
 
+	__vmalloc_start_set = true;
 	setup_bootmem_allocator();
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/mm/pageattr.c linux-libre-4.4.107-gnu/arch/x86/mm/pageattr.c
--- linux-libre-4.4-gnu/arch/x86/mm/pageattr.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/mm/pageattr.c	2017-12-20 04:05:01.000000000 -0500
@@ -33,7 +33,7 @@ struct cpa_data {
 	pgd_t		*pgd;
 	pgprot_t	mask_set;
 	pgprot_t	mask_clr;
-	int		numpages;
+	unsigned long	numpages;
 	int		flags;
 	unsigned long	pfn;
 	unsigned	force_split : 1;
@@ -414,24 +414,30 @@ pmd_t *lookup_pmd_address(unsigned long
 phys_addr_t slow_virt_to_phys(void *__virt_addr)
 {
 	unsigned long virt_addr = (unsigned long)__virt_addr;
-	unsigned long phys_addr, offset;
+	phys_addr_t phys_addr;
+	unsigned long offset;
 	enum pg_level level;
 	pte_t *pte;
 
 	pte = lookup_address(virt_addr, &level);
 	BUG_ON(!pte);
 
+	/*
+	 * pXX_pfn() returns unsigned long, which must be cast to phys_addr_t
+	 * before being left-shifted PAGE_SHIFT bits -- this trick is to
+	 * make 32-PAE kernel work correctly.
+	 */
 	switch (level) {
 	case PG_LEVEL_1G:
-		phys_addr = pud_pfn(*(pud_t *)pte) << PAGE_SHIFT;
+		phys_addr = (phys_addr_t)pud_pfn(*(pud_t *)pte) << PAGE_SHIFT;
 		offset = virt_addr & ~PUD_PAGE_MASK;
 		break;
 	case PG_LEVEL_2M:
-		phys_addr = pmd_pfn(*(pmd_t *)pte) << PAGE_SHIFT;
+		phys_addr = (phys_addr_t)pmd_pfn(*(pmd_t *)pte) << PAGE_SHIFT;
 		offset = virt_addr & ~PMD_PAGE_MASK;
 		break;
 	default:
-		phys_addr = pte_pfn(*pte) << PAGE_SHIFT;
+		phys_addr = (phys_addr_t)pte_pfn(*pte) << PAGE_SHIFT;
 		offset = virt_addr & ~PAGE_MASK;
 	}
 
@@ -1345,7 +1351,7 @@ static int __change_page_attr_set_clr(st
 		 * CPA operation. Either a large page has been
 		 * preserved or a single page update happened.
 		 */
-		BUG_ON(cpa->numpages > numpages);
+		BUG_ON(cpa->numpages > numpages || !cpa->numpages);
 		numpages -= cpa->numpages;
 		if (cpa->flags & (CPA_PAGES_ARRAY | CPA_ARRAY))
 			cpa->curpage++;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/mm/pat.c linux-libre-4.4.107-gnu/arch/x86/mm/pat.c
--- linux-libre-4.4-gnu/arch/x86/mm/pat.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/mm/pat.c	2017-12-20 04:05:01.000000000 -0500
@@ -36,13 +36,22 @@
 #undef pr_fmt
 #define pr_fmt(fmt) "" fmt
 
-static bool boot_cpu_done;
-
-static int __read_mostly __pat_enabled = IS_ENABLED(CONFIG_X86_PAT);
+static bool __read_mostly boot_cpu_done;
+static bool __read_mostly pat_disabled = !IS_ENABLED(CONFIG_X86_PAT);
+static bool __read_mostly pat_initialized;
+static bool __read_mostly init_cm_done;
 
-static inline void pat_disable(const char *reason)
+void pat_disable(const char *reason)
 {
-	__pat_enabled = 0;
+	if (pat_disabled)
+		return;
+
+	if (boot_cpu_done) {
+		WARN_ONCE(1, "x86/PAT: PAT cannot be disabled after initialization\n");
+		return;
+	}
+
+	pat_disabled = true;
 	pr_info("x86/PAT: %s\n", reason);
 }
 
@@ -55,7 +64,7 @@ early_param("nopat", nopat);
 
 bool pat_enabled(void)
 {
-	return !!__pat_enabled;
+	return pat_initialized;
 }
 EXPORT_SYMBOL_GPL(pat_enabled);
 
@@ -180,7 +189,7 @@ static enum page_cache_mode pat_get_cach
  * configuration.
  * Using lower indices is preferred, so we start with highest index.
  */
-void pat_init_cache_modes(u64 pat)
+static void __init_cache_modes(u64 pat)
 {
 	enum page_cache_mode cache;
 	char pat_msg[33];
@@ -193,6 +202,8 @@ void pat_init_cache_modes(u64 pat)
 		update_cache_mode_entry(i, cache);
 	}
 	pr_info("x86/PAT: Configuration [0-7]: %s\n", pat_msg);
+
+	init_cm_done = true;
 }
 
 #define PAT(x, y)	((u64)PAT_ ## y << ((x)*8))
@@ -201,14 +212,11 @@ static void pat_bsp_init(u64 pat)
 {
 	u64 tmp_pat;
 
-	if (!cpu_has_pat) {
+	if (!boot_cpu_has(X86_FEATURE_PAT)) {
 		pat_disable("PAT not supported by CPU.");
 		return;
 	}
 
-	if (!pat_enabled())
-		goto done;
-
 	rdmsrl(MSR_IA32_CR_PAT, tmp_pat);
 	if (!tmp_pat) {
 		pat_disable("PAT MSR is 0, disabled.");
@@ -216,17 +224,14 @@ static void pat_bsp_init(u64 pat)
 	}
 
 	wrmsrl(MSR_IA32_CR_PAT, pat);
+	pat_initialized = true;
 
-done:
-	pat_init_cache_modes(pat);
+	__init_cache_modes(pat);
 }
 
 static void pat_ap_init(u64 pat)
 {
-	if (!pat_enabled())
-		return;
-
-	if (!cpu_has_pat) {
+	if (!boot_cpu_has(X86_FEATURE_PAT)) {
 		/*
 		 * If this happens we are on a secondary CPU, but switched to
 		 * PAT on the boot CPU. We have no way to undo PAT.
@@ -237,18 +242,31 @@ static void pat_ap_init(u64 pat)
 	wrmsrl(MSR_IA32_CR_PAT, pat);
 }
 
-void pat_init(void)
+void init_cache_modes(void)
 {
-	u64 pat;
-	struct cpuinfo_x86 *c = &boot_cpu_data;
+	u64 pat = 0;
 
-	if (!pat_enabled()) {
+	if (init_cm_done)
+		return;
+
+	if (boot_cpu_has(X86_FEATURE_PAT)) {
+		/*
+		 * CPU supports PAT. Set PAT table to be consistent with
+		 * PAT MSR. This case supports "nopat" boot option, and
+		 * virtual machine environments which support PAT without
+		 * MTRRs. In specific, Xen has unique setup to PAT MSR.
+		 *
+		 * If PAT MSR returns 0, it is considered invalid and emulates
+		 * as No PAT.
+		 */
+		rdmsrl(MSR_IA32_CR_PAT, pat);
+	}
+
+	if (!pat) {
 		/*
 		 * No PAT. Emulate the PAT table that corresponds to the two
-		 * cache bits, PWT (Write Through) and PCD (Cache Disable). This
-		 * setup is the same as the BIOS default setup when the system
-		 * has PAT but the "nopat" boot option has been specified. This
-		 * emulated PAT table is used when MSR_IA32_CR_PAT returns 0.
+		 * cache bits, PWT (Write Through) and PCD (Cache Disable).
+		 * This setup is also the same as the BIOS default setup.
 		 *
 		 * PTE encoding:
 		 *
@@ -265,10 +283,32 @@ void pat_init(void)
 		 */
 		pat = PAT(0, WB) | PAT(1, WT) | PAT(2, UC_MINUS) | PAT(3, UC) |
 		      PAT(4, WB) | PAT(5, WT) | PAT(6, UC_MINUS) | PAT(7, UC);
+	}
 
-	} else if ((c->x86_vendor == X86_VENDOR_INTEL) &&
-		   (((c->x86 == 0x6) && (c->x86_model <= 0xd)) ||
-		    ((c->x86 == 0xf) && (c->x86_model <= 0x6)))) {
+	__init_cache_modes(pat);
+}
+
+/**
+ * pat_init - Initialize PAT MSR and PAT table
+ *
+ * This function initializes PAT MSR and PAT table with an OS-defined value
+ * to enable additional cache attributes, WC and WT.
+ *
+ * This function must be called on all CPUs using the specific sequence of
+ * operations defined in Intel SDM. mtrr_rendezvous_handler() provides this
+ * procedure for PAT.
+ */
+void pat_init(void)
+{
+	u64 pat;
+	struct cpuinfo_x86 *c = &boot_cpu_data;
+
+	if (pat_disabled)
+		return;
+
+	if ((c->x86_vendor == X86_VENDOR_INTEL) &&
+	    (((c->x86 == 0x6) && (c->x86_model <= 0xd)) ||
+	     ((c->x86 == 0xf) && (c->x86_model <= 0x6)))) {
 		/*
 		 * PAT support with the lower four entries. Intel Pentium 2,
 		 * 3, M, and 4 are affected by PAT errata, which makes the
@@ -733,25 +773,6 @@ int phys_mem_access_prot_allowed(struct
 	if (file->f_flags & O_DSYNC)
 		pcm = _PAGE_CACHE_MODE_UC_MINUS;
 
-#ifdef CONFIG_X86_32
-	/*
-	 * On the PPro and successors, the MTRRs are used to set
-	 * memory types for physical addresses outside main memory,
-	 * so blindly setting UC or PWT on those pages is wrong.
-	 * For Pentiums and earlier, the surround logic should disable
-	 * caching for the high addresses through the KEN pin, but
-	 * we maintain the tradition of paranoia in this code.
-	 */
-	if (!pat_enabled() &&
-	    !(boot_cpu_has(X86_FEATURE_MTRR) ||
-	      boot_cpu_has(X86_FEATURE_K6_MTRR) ||
-	      boot_cpu_has(X86_FEATURE_CYRIX_ARR) ||
-	      boot_cpu_has(X86_FEATURE_CENTAUR_MCR)) &&
-	    (pfn << PAGE_SHIFT) >= __pa(high_memory)) {
-		pcm = _PAGE_CACHE_MODE_UC;
-	}
-#endif
-
 	*vma_prot = __pgprot((pgprot_val(*vma_prot) & ~_PAGE_CACHE_MASK) |
 			     cachemode2protval(pcm));
 	return 1;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/mm/tlb.c linux-libre-4.4.107-gnu/arch/x86/mm/tlb.c
--- linux-libre-4.4-gnu/arch/x86/mm/tlb.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/mm/tlb.c	2017-12-20 04:05:01.000000000 -0500
@@ -106,8 +106,6 @@ static void flush_tlb_func(void *info)
 
 	if (f->flush_mm != this_cpu_read(cpu_tlbstate.active_mm))
 		return;
-	if (!f->flush_end)
-		f->flush_end = f->flush_start + PAGE_SIZE;
 
 	count_vm_tlb_event(NR_TLB_REMOTE_FLUSH_RECEIVED);
 	if (this_cpu_read(cpu_tlbstate.state) == TLBSTATE_OK) {
@@ -135,12 +133,18 @@ void native_flush_tlb_others(const struc
 				 unsigned long end)
 {
 	struct flush_tlb_info info;
+
 	info.flush_mm = mm;
 	info.flush_start = start;
 	info.flush_end = end;
 
 	count_vm_tlb_event(NR_TLB_REMOTE_FLUSH);
-	trace_tlb_flush(TLB_REMOTE_SEND_IPI, end - start);
+	if (end == TLB_FLUSH_ALL)
+		trace_tlb_flush(TLB_REMOTE_SEND_IPI, TLB_FLUSH_ALL);
+	else
+		trace_tlb_flush(TLB_REMOTE_SEND_IPI,
+				(end - start) >> PAGE_SHIFT);
+
 	if (is_uv_system()) {
 		unsigned int cpu;
 
@@ -161,7 +165,10 @@ void flush_tlb_current_task(void)
 	preempt_disable();
 
 	count_vm_tlb_event(NR_TLB_LOCAL_FLUSH_ALL);
+
+	/* This is an implicit full barrier that synchronizes with switch_mm. */
 	local_flush_tlb();
+
 	trace_tlb_flush(TLB_LOCAL_SHOOTDOWN, TLB_FLUSH_ALL);
 	if (cpumask_any_but(mm_cpumask(mm), smp_processor_id()) < nr_cpu_ids)
 		flush_tlb_others(mm_cpumask(mm), mm, 0UL, TLB_FLUSH_ALL);
@@ -188,17 +195,29 @@ void flush_tlb_mm_range(struct mm_struct
 	unsigned long base_pages_to_flush = TLB_FLUSH_ALL;
 
 	preempt_disable();
-	if (current->active_mm != mm)
+	if (current->active_mm != mm) {
+		/* Synchronize with switch_mm. */
+		smp_mb();
+
 		goto out;
+	}
 
 	if (!current->mm) {
 		leave_mm(smp_processor_id());
+
+		/* Synchronize with switch_mm. */
+		smp_mb();
+
 		goto out;
 	}
 
 	if ((end != TLB_FLUSH_ALL) && !(vmflag & VM_HUGETLB))
 		base_pages_to_flush = (end - start) >> PAGE_SHIFT;
 
+	/*
+	 * Both branches below are implicit full barriers (MOV to CR or
+	 * INVLPG) that synchronize with switch_mm.
+	 */
 	if (base_pages_to_flush > tlb_single_page_flush_ceiling) {
 		base_pages_to_flush = TLB_FLUSH_ALL;
 		count_vm_tlb_event(NR_TLB_LOCAL_FLUSH_ALL);
@@ -228,14 +247,22 @@ void flush_tlb_page(struct vm_area_struc
 	preempt_disable();
 
 	if (current->active_mm == mm) {
-		if (current->mm)
+		if (current->mm) {
+			/*
+			 * Implicit full barrier (INVLPG) that synchronizes
+			 * with switch_mm.
+			 */
 			__flush_tlb_one(start);
-		else
+		} else {
 			leave_mm(smp_processor_id());
+
+			/* Synchronize with switch_mm. */
+			smp_mb();
+		}
 	}
 
 	if (cpumask_any_but(mm_cpumask(mm), smp_processor_id()) < nr_cpu_ids)
-		flush_tlb_others(mm_cpumask(mm), mm, start, 0UL);
+		flush_tlb_others(mm_cpumask(mm), mm, start, start + PAGE_SIZE);
 
 	preempt_enable();
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/oprofile/op_model_ppro.c linux-libre-4.4.107-gnu/arch/x86/oprofile/op_model_ppro.c
--- linux-libre-4.4-gnu/arch/x86/oprofile/op_model_ppro.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/oprofile/op_model_ppro.c	2017-12-20 04:05:01.000000000 -0500
@@ -212,8 +212,8 @@ static void arch_perfmon_setup_counters(
 	eax.full = cpuid_eax(0xa);
 
 	/* Workaround for BIOS bugs in 6/15. Taken from perfmon2 */
-	if (eax.split.version_id == 0 && __this_cpu_read(cpu_info.x86) == 6 &&
-		__this_cpu_read(cpu_info.x86_model) == 15) {
+	if (eax.split.version_id == 0 && boot_cpu_data.x86 == 6 &&
+	    boot_cpu_data.x86_model == 15) {
 		eax.split.version_id = 2;
 		eax.split.num_counters = 2;
 		eax.split.bit_width = 40;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/pci/acpi.c linux-libre-4.4.107-gnu/arch/x86/pci/acpi.c
--- linux-libre-4.4-gnu/arch/x86/pci/acpi.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/pci/acpi.c	2017-12-20 04:05:01.000000000 -0500
@@ -114,6 +114,16 @@ static const struct dmi_system_id pci_cr
 			DMI_MATCH(DMI_BIOS_VERSION, "6JET85WW (1.43 )"),
 		},
 	},
+	/* https://bugzilla.kernel.org/show_bug.cgi?id=42606 */
+	{
+		.callback = set_nouse_crs,
+		.ident = "Supermicro X8DTH",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Supermicro"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "X8DTH-i/6/iF/6F"),
+			DMI_MATCH(DMI_BIOS_VERSION, "2.0a"),
+		},
+	},
 
 	/* https://bugzilla.kernel.org/show_bug.cgi?id=15362 */
 	{
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/pci/broadcom_bus.c linux-libre-4.4.107-gnu/arch/x86/pci/broadcom_bus.c
--- linux-libre-4.4-gnu/arch/x86/pci/broadcom_bus.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/pci/broadcom_bus.c	2017-12-20 04:05:01.000000000 -0500
@@ -97,7 +97,7 @@ static int __init broadcom_postcore_init
 	 * We should get host bridge information from ACPI unless the BIOS
 	 * doesn't support it.
 	 */
-	if (acpi_os_get_root_pointer())
+	if (!acpi_disabled && acpi_os_get_root_pointer())
 		return 0;
 #endif
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/pci/common.c linux-libre-4.4.107-gnu/arch/x86/pci/common.c
--- linux-libre-4.4-gnu/arch/x86/pci/common.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/pci/common.c	2017-12-20 04:05:01.000000000 -0500
@@ -673,28 +673,22 @@ int pcibios_add_device(struct pci_dev *d
 	return 0;
 }
 
-int pcibios_alloc_irq(struct pci_dev *dev)
+int pcibios_enable_device(struct pci_dev *dev, int mask)
 {
-	/*
-	 * If the PCI device was already claimed by core code and has
-	 * MSI enabled, probing of the pcibios IRQ will overwrite
-	 * dev->irq.  So bail out if MSI is already enabled.
-	 */
-	if (pci_dev_msi_enabled(dev))
-		return -EBUSY;
+	int err;
 
-	return pcibios_enable_irq(dev);
-}
+	if ((err = pci_enable_resources(dev, mask)) < 0)
+		return err;
 
-void pcibios_free_irq(struct pci_dev *dev)
-{
-	if (pcibios_disable_irq)
-		pcibios_disable_irq(dev);
+	if (!pci_dev_msi_enabled(dev))
+		return pcibios_enable_irq(dev);
+	return 0;
 }
 
-int pcibios_enable_device(struct pci_dev *dev, int mask)
+void pcibios_disable_device (struct pci_dev *dev)
 {
-	return pci_enable_resources(dev, mask);
+	if (!pci_dev_msi_enabled(dev) && pcibios_disable_irq)
+		pcibios_disable_irq(dev);
 }
 
 int pci_ext_cfg_avail(void)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/pci/fixup.c linux-libre-4.4.107-gnu/arch/x86/pci/fixup.c
--- linux-libre-4.4-gnu/arch/x86/pci/fixup.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/pci/fixup.c	2017-12-20 04:05:01.000000000 -0500
@@ -540,3 +540,10 @@ static void twinhead_reserve_killing_zon
         }
 }
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x27B9, twinhead_reserve_killing_zone);
+
+static void pci_bdwep_bar(struct pci_dev *dev)
+{
+	dev->non_compliant_bars = 1;
+}
+DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x6fa0, pci_bdwep_bar);
+DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x6fc0, pci_bdwep_bar);
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/pci/intel_mid_pci.c linux-libre-4.4.107-gnu/arch/x86/pci/intel_mid_pci.c
--- linux-libre-4.4-gnu/arch/x86/pci/intel_mid_pci.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/pci/intel_mid_pci.c	2017-12-20 04:05:01.000000000 -0500
@@ -37,6 +37,7 @@
 
 /* Quirks for the listed devices */
 #define PCI_DEVICE_ID_INTEL_MRFL_MMC	0x1190
+#define PCI_DEVICE_ID_INTEL_MRFL_HSU	0x1191
 
 /* Fixed BAR fields */
 #define PCIE_VNDR_CAP_ID_FIXED_BAR 0x00	/* Fixed BAR (TBD) */
@@ -215,7 +216,7 @@ static int intel_mid_pci_irq_enable(stru
 	int polarity;
 	int ret;
 
-	if (pci_has_managed_irq(dev))
+	if (dev->irq_managed && dev->irq > 0)
 		return 0;
 
 	switch (intel_mid_identify_cpu()) {
@@ -225,13 +226,20 @@ static int intel_mid_pci_irq_enable(stru
 		/* Special treatment for IRQ0 */
 		if (dev->irq == 0) {
 			/*
+			 * Skip HS UART common registers device since it has
+			 * IRQ0 assigned and not used by the kernel.
+			 */
+			if (dev->device == PCI_DEVICE_ID_INTEL_MRFL_HSU)
+				return -EBUSY;
+			/*
 			 * TNG has IRQ0 assigned to eMMC controller. But there
 			 * are also other devices with bogus PCI configuration
 			 * that have IRQ0 assigned. This check ensures that
-			 * eMMC gets it.
+			 * eMMC gets it. The rest of devices still could be
+			 * enabled without interrupt line being allocated.
 			 */
 			if (dev->device != PCI_DEVICE_ID_INTEL_MRFL_MMC)
-				return -EBUSY;
+				return 0;
 		}
 		break;
 	default:
@@ -256,13 +264,10 @@ static int intel_mid_pci_irq_enable(stru
 
 static void intel_mid_pci_irq_disable(struct pci_dev *dev)
 {
-	if (pci_has_managed_irq(dev)) {
+	if (!mp_should_keep_irq(&dev->dev) && dev->irq_managed &&
+	    dev->irq > 0) {
 		mp_unmap_irq(dev->irq);
 		dev->irq_managed = 0;
-		/*
-		 * Don't reset dev->irq here, otherwise
-		 * intel_mid_pci_irq_enable() will fail on next call.
-		 */
 	}
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/pci/irq.c linux-libre-4.4.107-gnu/arch/x86/pci/irq.c
--- linux-libre-4.4-gnu/arch/x86/pci/irq.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/pci/irq.c	2017-12-20 04:05:01.000000000 -0500
@@ -1202,7 +1202,7 @@ static int pirq_enable_irq(struct pci_de
 			struct pci_dev *temp_dev;
 			int irq;
 
-			if (pci_has_managed_irq(dev))
+			if (dev->irq_managed && dev->irq > 0)
 				return 0;
 
 			irq = IO_APIC_get_PCI_irq_vector(dev->bus->number,
@@ -1230,7 +1230,8 @@ static int pirq_enable_irq(struct pci_de
 			}
 			dev = temp_dev;
 			if (irq >= 0) {
-				pci_set_managed_irq(dev, irq);
+				dev->irq_managed = 1;
+				dev->irq = irq;
 				dev_info(&dev->dev, "PCI->APIC IRQ transform: "
 					 "INT %c -> IRQ %d\n", 'A' + pin - 1, irq);
 				return 0;
@@ -1256,10 +1257,24 @@ static int pirq_enable_irq(struct pci_de
 	return 0;
 }
 
+bool mp_should_keep_irq(struct device *dev)
+{
+	if (dev->power.is_prepared)
+		return true;
+#ifdef CONFIG_PM
+	if (dev->power.runtime_status == RPM_SUSPENDING)
+		return true;
+#endif
+
+	return false;
+}
+
 static void pirq_disable_irq(struct pci_dev *dev)
 {
-	if (io_apic_assign_pci_irqs && pci_has_managed_irq(dev)) {
+	if (io_apic_assign_pci_irqs && !mp_should_keep_irq(&dev->dev) &&
+	    dev->irq_managed && dev->irq) {
 		mp_unmap_irq(dev->irq);
-		pci_reset_managed_irq(dev);
+		dev->irq = 0;
+		dev->irq_managed = 0;
 	}
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/pci/xen.c linux-libre-4.4.107-gnu/arch/x86/pci/xen.c
--- linux-libre-4.4-gnu/arch/x86/pci/xen.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/pci/xen.c	2017-12-20 04:05:01.000000000 -0500
@@ -231,23 +231,14 @@ static int xen_hvm_setup_msi_irqs(struct
 		return 1;
 
 	for_each_pci_msi_entry(msidesc, dev) {
-		__pci_read_msi_msg(msidesc, &msg);
-		pirq = MSI_ADDR_EXT_DEST_ID(msg.address_hi) |
-			((msg.address_lo >> MSI_ADDR_DEST_ID_SHIFT) & 0xff);
-		if (msg.data != XEN_PIRQ_MSI_DATA ||
-		    xen_irq_from_pirq(pirq) < 0) {
-			pirq = xen_allocate_pirq_msi(dev, msidesc);
-			if (pirq < 0) {
-				irq = -ENODEV;
-				goto error;
-			}
-			xen_msi_compose_msg(dev, pirq, &msg);
-			__pci_write_msi_msg(msidesc, &msg);
-			dev_dbg(&dev->dev, "xen: msi bound to pirq=%d\n", pirq);
-		} else {
-			dev_dbg(&dev->dev,
-				"xen: msi already bound to pirq=%d\n", pirq);
+		pirq = xen_allocate_pirq_msi(dev, msidesc);
+		if (pirq < 0) {
+			irq = -ENODEV;
+			goto error;
 		}
+		xen_msi_compose_msg(dev, pirq, &msg);
+		__pci_write_msi_msg(msidesc, &msg);
+		dev_dbg(&dev->dev, "xen: msi bound to pirq=%d\n", pirq);
 		irq = xen_bind_pirq_msi_to_irq(dev, msidesc, pirq,
 					       (type == PCI_CAP_ID_MSI) ? nvec : 1,
 					       (type == PCI_CAP_ID_MSIX) ?
@@ -488,8 +479,11 @@ int __init pci_xen_initial_domain(void)
 #endif
 	__acpi_register_gsi = acpi_register_gsi_xen;
 	__acpi_unregister_gsi = NULL;
-	/* Pre-allocate legacy irqs */
-	for (irq = 0; irq < nr_legacy_irqs(); irq++) {
+	/*
+	 * Pre-allocate the legacy IRQs.  Use NR_LEGACY_IRQS here
+	 * because we don't have a PIC and thus nr_legacy_irqs() is zero.
+	 */
+	for (irq = 0; irq < NR_IRQS_LEGACY; irq++) {
 		int trigger, polarity;
 
 		if (acpi_get_override_irq(irq, &trigger, &polarity) == -1)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/platform/efi/efi-bgrt.c linux-libre-4.4.107-gnu/arch/x86/platform/efi/efi-bgrt.c
--- linux-libre-4.4-gnu/arch/x86/platform/efi/efi-bgrt.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/platform/efi/efi-bgrt.c	2017-12-20 04:05:01.000000000 -0500
@@ -28,8 +28,7 @@ struct bmp_header {
 void __init efi_bgrt_init(void)
 {
 	acpi_status status;
-	void __iomem *image;
-	bool ioremapped = false;
+	void *image;
 	struct bmp_header bmp_header;
 
 	if (acpi_disabled)
@@ -70,20 +69,14 @@ void __init efi_bgrt_init(void)
 		return;
 	}
 
-	image = efi_lookup_mapped_addr(bgrt_tab->image_address);
+	image = memremap(bgrt_tab->image_address, sizeof(bmp_header), MEMREMAP_WB);
 	if (!image) {
-		image = early_ioremap(bgrt_tab->image_address,
-				       sizeof(bmp_header));
-		ioremapped = true;
-		if (!image) {
-			pr_err("Ignoring BGRT: failed to map image header memory\n");
-			return;
-		}
+		pr_err("Ignoring BGRT: failed to map image header memory\n");
+		return;
 	}
 
-	memcpy_fromio(&bmp_header, image, sizeof(bmp_header));
-	if (ioremapped)
-		early_iounmap(image, sizeof(bmp_header));
+	memcpy(&bmp_header, image, sizeof(bmp_header));
+	memunmap(image);
 	bgrt_image_size = bmp_header.size;
 
 	bgrt_image = kmalloc(bgrt_image_size, GFP_KERNEL | __GFP_NOWARN);
@@ -93,18 +86,14 @@ void __init efi_bgrt_init(void)
 		return;
 	}
 
-	if (ioremapped) {
-		image = early_ioremap(bgrt_tab->image_address,
-				       bmp_header.size);
-		if (!image) {
-			pr_err("Ignoring BGRT: failed to map image memory\n");
-			kfree(bgrt_image);
-			bgrt_image = NULL;
-			return;
-		}
+	image = memremap(bgrt_tab->image_address, bmp_header.size, MEMREMAP_WB);
+	if (!image) {
+		pr_err("Ignoring BGRT: failed to map image memory\n");
+		kfree(bgrt_image);
+		bgrt_image = NULL;
+		return;
 	}
 
-	memcpy_fromio(bgrt_image, image, bgrt_image_size);
-	if (ioremapped)
-		early_iounmap(image, bmp_header.size);
+	memcpy(bgrt_image, image, bgrt_image_size);
+	memunmap(image);
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/platform/goldfish/goldfish.c linux-libre-4.4.107-gnu/arch/x86/platform/goldfish/goldfish.c
--- linux-libre-4.4-gnu/arch/x86/platform/goldfish/goldfish.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/platform/goldfish/goldfish.c	2017-12-20 04:05:01.000000000 -0500
@@ -42,10 +42,22 @@ static struct resource goldfish_pdev_bus
 	}
 };
 
+static bool goldfish_enable __initdata;
+
+static int __init goldfish_setup(char *str)
+{
+	goldfish_enable = true;
+	return 0;
+}
+__setup("goldfish", goldfish_setup);
+
 static int __init goldfish_init(void)
 {
+	if (!goldfish_enable)
+		return -ENODEV;
+
 	platform_device_register_simple("goldfish_pdev_bus", -1,
-						goldfish_pdev_bus_resources, 2);
+					goldfish_pdev_bus_resources, 2);
 	return 0;
 }
 device_initcall(goldfish_init);
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/platform/intel-mid/device_libs/platform_wdt.c linux-libre-4.4.107-gnu/arch/x86/platform/intel-mid/device_libs/platform_wdt.c
--- linux-libre-4.4-gnu/arch/x86/platform/intel-mid/device_libs/platform_wdt.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/platform/intel-mid/device_libs/platform_wdt.c	2017-12-20 04:05:01.000000000 -0500
@@ -17,7 +17,7 @@
 #include <asm/intel-mid.h>
 #include <asm/io_apic.h>
 
-#define TANGIER_EXT_TIMER0_MSI 15
+#define TANGIER_EXT_TIMER0_MSI 12
 
 static struct platform_device wdt_dev = {
 	.name = "intel_mid_wdt",
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/purgatory/Makefile linux-libre-4.4.107-gnu/arch/x86/purgatory/Makefile
--- linux-libre-4.4-gnu/arch/x86/purgatory/Makefile	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/purgatory/Makefile	2017-12-20 04:05:01.000000000 -0500
@@ -12,6 +12,7 @@ targets += purgatory.ro
 
 KBUILD_CFLAGS := -fno-strict-aliasing -Wall -Wstrict-prototypes -fno-zero-initialized-in-bss -fno-builtin -ffreestanding -c -MD -Os -mcmodel=large
 KBUILD_CFLAGS += -m$(BITS)
+KBUILD_CFLAGS += $(call cc-option,-fno-PIE)
 
 $(obj)/purgatory.ro: $(PURGATORY_OBJS) FORCE
 		$(call if_changed,ld)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/tools/relocs.c linux-libre-4.4.107-gnu/arch/x86/tools/relocs.c
--- linux-libre-4.4-gnu/arch/x86/tools/relocs.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/tools/relocs.c	2017-12-20 04:05:01.000000000 -0500
@@ -992,11 +992,12 @@ static void emit_relocs(int as_text, int
 		die("Segment relocations found but --realmode not specified\n");
 
 	/* Order the relocations for more efficient processing */
-	sort_relocs(&relocs16);
 	sort_relocs(&relocs32);
 #if ELF_BITS == 64
 	sort_relocs(&relocs32neg);
 	sort_relocs(&relocs64);
+#else
+	sort_relocs(&relocs16);
 #endif
 
 	/* Print the relocations */
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/um/ldt.c linux-libre-4.4.107-gnu/arch/x86/um/ldt.c
--- linux-libre-4.4-gnu/arch/x86/um/ldt.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/um/ldt.c	2017-12-20 04:05:01.000000000 -0500
@@ -6,6 +6,7 @@
 #include <linux/mm.h>
 #include <linux/sched.h>
 #include <linux/slab.h>
+#include <linux/syscalls.h>
 #include <linux/uaccess.h>
 #include <asm/unistd.h>
 #include <os.h>
@@ -369,7 +370,9 @@ void free_ldt(struct mm_context *mm)
 	mm->arch.ldt.entry_count = 0;
 }
 
-int sys_modify_ldt(int func, void __user *ptr, unsigned long bytecount)
+SYSCALL_DEFINE3(modify_ldt, int , func , void __user * , ptr ,
+		unsigned long , bytecount)
 {
-	return do_modify_ldt_skas(func, ptr, bytecount);
+	/* See non-um modify_ldt() for why we do this cast */
+	return (unsigned int)do_modify_ldt_skas(func, ptr, bytecount);
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/um/ptrace_64.c linux-libre-4.4.107-gnu/arch/x86/um/ptrace_64.c
--- linux-libre-4.4-gnu/arch/x86/um/ptrace_64.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/um/ptrace_64.c	2017-12-20 04:05:01.000000000 -0500
@@ -121,7 +121,7 @@ int poke_user(struct task_struct *child,
 	else if ((addr >= offsetof(struct user, u_debugreg[0])) &&
 		(addr <= offsetof(struct user, u_debugreg[7]))) {
 		addr -= offsetof(struct user, u_debugreg[0]);
-		addr = addr >> 2;
+		addr = addr >> 3;
 		if ((addr == 4) || (addr == 5))
 			return -EIO;
 		child->thread.arch.debugregs[addr] = data;
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/xen/enlighten.c linux-libre-4.4.107-gnu/arch/x86/xen/enlighten.c
--- linux-libre-4.4-gnu/arch/x86/xen/enlighten.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/xen/enlighten.c	2017-12-20 04:05:01.000000000 -0500
@@ -74,7 +74,6 @@
 #include <asm/mach_traps.h>
 #include <asm/mwait.h>
 #include <asm/pci_x86.h>
-#include <asm/pat.h>
 #include <asm/cpu.h>
 
 #ifdef CONFIG_ACPI
@@ -961,7 +960,7 @@ static void xen_load_sp0(struct tss_stru
 	tss->x86_tss.sp0 = thread->sp0;
 }
 
-static void xen_set_iopl_mask(unsigned mask)
+void xen_set_iopl_mask(unsigned mask)
 {
 	struct physdev_set_iopl set_iopl;
 
@@ -1519,7 +1518,6 @@ asmlinkage __visible void __init xen_sta
 {
 	struct physdev_set_iopl set_iopl;
 	unsigned long initrd_start = 0;
-	u64 pat;
 	int rc;
 
 	if (!xen_start_info)
@@ -1627,13 +1625,6 @@ asmlinkage __visible void __init xen_sta
 				   xen_start_info->nr_pages);
 	xen_reserve_special_pages();
 
-	/*
-	 * Modify the cache mode translation tables to match Xen's PAT
-	 * configuration.
-	 */
-	rdmsrl(MSR_IA32_CR_PAT, pat);
-	pat_init_cache_modes(pat);
-
 	/* keep using Xen gdt for now; no urgent need to change it */
 
 #ifdef CONFIG_X86_32
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/xen/mmu.c linux-libre-4.4.107-gnu/arch/x86/xen/mmu.c
--- linux-libre-4.4-gnu/arch/x86/xen/mmu.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/xen/mmu.c	2017-12-20 04:05:01.000000000 -0500
@@ -1113,7 +1113,7 @@ static void __init xen_cleanhighmap(unsi
 
 	/* NOTE: The loop is more greedy than the cleanup_highmap variant.
 	 * We include the PMD passed in on _both_ boundaries. */
-	for (; vaddr <= vaddr_end && (pmd < (level2_kernel_pgt + PAGE_SIZE));
+	for (; vaddr <= vaddr_end && (pmd < (level2_kernel_pgt + PTRS_PER_PMD));
 			pmd++, vaddr += PMD_SIZE) {
 		if (pmd_none(*pmd))
 			continue;
@@ -2038,7 +2038,8 @@ static unsigned long __init xen_read_phy
 
 /*
  * Translate a virtual address to a physical one without relying on mapped
- * page tables.
+ * page tables. Don't rely on big pages being aligned in (guest) physical
+ * space!
  */
 static phys_addr_t __init xen_early_virt_to_phys(unsigned long vaddr)
 {
@@ -2059,7 +2060,7 @@ static phys_addr_t __init xen_early_virt
 						       sizeof(pud)));
 	if (!pud_present(pud))
 		return 0;
-	pa = pud_pfn(pud) << PAGE_SHIFT;
+	pa = pud_val(pud) & PTE_PFN_MASK;
 	if (pud_large(pud))
 		return pa + (vaddr & ~PUD_MASK);
 
@@ -2067,7 +2068,7 @@ static phys_addr_t __init xen_early_virt
 						       sizeof(pmd)));
 	if (!pmd_present(pmd))
 		return 0;
-	pa = pmd_pfn(pmd) << PAGE_SHIFT;
+	pa = pmd_val(pmd) & PTE_PFN_MASK;
 	if (pmd_large(pmd))
 		return pa + (vaddr & ~PMD_MASK);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/xen/setup.c linux-libre-4.4.107-gnu/arch/x86/xen/setup.c
--- linux-libre-4.4-gnu/arch/x86/xen/setup.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/xen/setup.c	2017-12-20 04:05:01.000000000 -0500
@@ -393,6 +393,9 @@ static unsigned long __init xen_set_iden
 	unsigned long i = 0;
 	unsigned long n = end_pfn - start_pfn;
 
+	if (remap_pfn == 0)
+		remap_pfn = nr_pages;
+
 	while (i < n) {
 		unsigned long cur_pfn = start_pfn + i;
 		unsigned long left = n - i;
@@ -438,17 +441,29 @@ static unsigned long __init xen_set_iden
 	return remap_pfn;
 }
 
-static void __init xen_set_identity_and_remap(unsigned long nr_pages)
+static unsigned long __init xen_count_remap_pages(
+	unsigned long start_pfn, unsigned long end_pfn, unsigned long nr_pages,
+	unsigned long remap_pages)
+{
+	if (start_pfn >= nr_pages)
+		return remap_pages;
+
+	return remap_pages + min(end_pfn, nr_pages) - start_pfn;
+}
+
+static unsigned long __init xen_foreach_remap_area(unsigned long nr_pages,
+	unsigned long (*func)(unsigned long start_pfn, unsigned long end_pfn,
+			      unsigned long nr_pages, unsigned long last_val))
 {
 	phys_addr_t start = 0;
-	unsigned long last_pfn = nr_pages;
+	unsigned long ret_val = 0;
 	const struct e820entry *entry = xen_e820_map;
 	int i;
 
 	/*
 	 * Combine non-RAM regions and gaps until a RAM region (or the
-	 * end of the map) is reached, then set the 1:1 map and
-	 * remap the memory in those non-RAM regions.
+	 * end of the map) is reached, then call the provided function
+	 * to perform its duty on the non-RAM region.
 	 *
 	 * The combined non-RAM regions are rounded to a whole number
 	 * of pages so any partial pages are accessible via the 1:1
@@ -466,14 +481,13 @@ static void __init xen_set_identity_and_
 				end_pfn = PFN_UP(entry->addr);
 
 			if (start_pfn < end_pfn)
-				last_pfn = xen_set_identity_and_remap_chunk(
-						start_pfn, end_pfn, nr_pages,
-						last_pfn);
+				ret_val = func(start_pfn, end_pfn, nr_pages,
+					       ret_val);
 			start = end;
 		}
 	}
 
-	pr_info("Released %ld page(s)\n", xen_released_pages);
+	return ret_val;
 }
 
 /*
@@ -596,35 +610,6 @@ static void __init xen_ignore_unusable(v
 	}
 }
 
-static unsigned long __init xen_count_remap_pages(unsigned long max_pfn)
-{
-	unsigned long extra = 0;
-	unsigned long start_pfn, end_pfn;
-	const struct e820entry *entry = xen_e820_map;
-	int i;
-
-	end_pfn = 0;
-	for (i = 0; i < xen_e820_map_entries; i++, entry++) {
-		start_pfn = PFN_DOWN(entry->addr);
-		/* Adjacent regions on non-page boundaries handling! */
-		end_pfn = min(end_pfn, start_pfn);
-
-		if (start_pfn >= max_pfn)
-			return extra + max_pfn - end_pfn;
-
-		/* Add any holes in map to result. */
-		extra += start_pfn - end_pfn;
-
-		end_pfn = PFN_UP(entry->addr + entry->size);
-		end_pfn = min(end_pfn, max_pfn);
-
-		if (entry->type != E820_RAM)
-			extra += end_pfn - start_pfn;
-	}
-
-	return extra;
-}
-
 bool __init xen_is_e820_reserved(phys_addr_t start, phys_addr_t size)
 {
 	struct e820entry *entry;
@@ -728,10 +713,9 @@ static void __init xen_reserve_xen_mfnli
 		size = PFN_PHYS(xen_start_info->nr_p2m_frames);
 	}
 
-	if (!xen_is_e820_reserved(start, size)) {
-		memblock_reserve(start, size);
+	memblock_reserve(start, size);
+	if (!xen_is_e820_reserved(start, size))
 		return;
-	}
 
 #ifdef CONFIG_X86_32
 	/*
@@ -742,6 +726,7 @@ static void __init xen_reserve_xen_mfnli
 	BUG();
 #else
 	xen_relocate_p2m();
+	memblock_free(start, size);
 #endif
 }
 
@@ -804,7 +789,7 @@ char * __init xen_memory_setup(void)
 	max_pages = xen_get_max_pages();
 
 	/* How many extra pages do we need due to remapping? */
-	max_pages += xen_count_remap_pages(max_pfn);
+	max_pages += xen_foreach_remap_area(max_pfn, xen_count_remap_pages);
 
 	if (max_pages > max_pfn)
 		extra_pages += max_pages - max_pfn;
@@ -922,7 +907,9 @@ char * __init xen_memory_setup(void)
 	 * Set identity map on non-RAM pages and prepare remapping the
 	 * underlying RAM.
 	 */
-	xen_set_identity_and_remap(max_pfn);
+	xen_foreach_remap_area(max_pfn, xen_set_identity_and_remap_chunk);
+
+	pr_info("Released %ld page(s)\n", xen_released_pages);
 
 	return "Xen";
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/xen/spinlock.c linux-libre-4.4.107-gnu/arch/x86/xen/spinlock.c
--- linux-libre-4.4-gnu/arch/x86/xen/spinlock.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/xen/spinlock.c	2017-12-20 04:05:01.000000000 -0500
@@ -27,6 +27,12 @@ static bool xen_pvspin = true;
 
 static void xen_qlock_kick(int cpu)
 {
+	int irq = per_cpu(lock_kicker_irq, cpu);
+
+	/* Don't kick if the target's kicker interrupt is not initialized. */
+	if (irq == -1)
+		return;
+
 	xen_send_IPI_one(cpu, XEN_SPIN_UNLOCK_VECTOR);
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/xen/suspend.c linux-libre-4.4.107-gnu/arch/x86/xen/suspend.c
--- linux-libre-4.4-gnu/arch/x86/xen/suspend.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/xen/suspend.c	2017-12-20 04:05:01.000000000 -0500
@@ -34,7 +34,8 @@ static void xen_hvm_post_suspend(int sus
 {
 #ifdef CONFIG_XEN_PVHVM
 	int cpu;
-	xen_hvm_init_shared_info();
+	if (!suspend_cancelled)
+	    xen_hvm_init_shared_info();
 	xen_callback_vector();
 	xen_unplug_emulated_devices();
 	if (xen_feature(XENFEAT_hvm_safe_pvclock)) {
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/x86/xen/time.c linux-libre-4.4.107-gnu/arch/x86/xen/time.c
--- linux-libre-4.4-gnu/arch/x86/xen/time.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/x86/xen/time.c	2017-12-20 04:05:01.000000000 -0500
@@ -343,11 +343,11 @@ static int xen_vcpuop_set_next_event(uns
 	WARN_ON(!clockevent_state_oneshot(evt));
 
 	single.timeout_abs_ns = get_abs_timeout(delta);
-	single.flags = VCPU_SSHOTTMR_future;
+	/* Get an event anyway, even if the timeout is already expired */
+	single.flags = 0;
 
 	ret = HYPERVISOR_vcpu_op(VCPUOP_set_singleshot_timer, cpu, &single);
-
-	BUG_ON(ret != 0 && ret != -ETIME);
+	BUG_ON(ret != 0);
 
 	return ret;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/xtensa/include/asm/irq.h linux-libre-4.4.107-gnu/arch/xtensa/include/asm/irq.h
--- linux-libre-4.4-gnu/arch/xtensa/include/asm/irq.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/xtensa/include/asm/irq.h	2017-12-20 04:05:01.000000000 -0500
@@ -29,7 +29,8 @@ static inline void variant_irq_disable(u
 # define PLATFORM_NR_IRQS 0
 #endif
 #define XTENSA_NR_IRQS XCHAL_NUM_INTERRUPTS
-#define NR_IRQS (XTENSA_NR_IRQS + VARIANT_NR_IRQS + PLATFORM_NR_IRQS)
+#define NR_IRQS (XTENSA_NR_IRQS + VARIANT_NR_IRQS + PLATFORM_NR_IRQS + 1)
+#define XTENSA_PIC_LINUX_IRQ(hwirq) ((hwirq) + 1)
 
 #if VARIANT_NR_IRQS == 0
 static inline void variant_init_irq(void) { }
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/xtensa/kernel/head.S linux-libre-4.4.107-gnu/arch/xtensa/kernel/head.S
--- linux-libre-4.4-gnu/arch/xtensa/kernel/head.S	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/xtensa/kernel/head.S	2017-12-20 04:05:01.000000000 -0500
@@ -128,7 +128,7 @@ ENTRY(_startup)
 	wsr	a0, icountlevel
 
 	.set	_index, 0
-	.rept	XCHAL_NUM_DBREAK - 1
+	.rept	XCHAL_NUM_DBREAK
 	wsr	a0, SREG_DBREAKC + _index
 	.set	_index, _index + 1
 	.endr
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/xtensa/kernel/irq.c linux-libre-4.4.107-gnu/arch/xtensa/kernel/irq.c
--- linux-libre-4.4-gnu/arch/xtensa/kernel/irq.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/xtensa/kernel/irq.c	2017-12-20 04:05:01.000000000 -0500
@@ -34,11 +34,6 @@ asmlinkage void do_IRQ(int hwirq, struct
 {
 	int irq = irq_find_mapping(NULL, hwirq);
 
-	if (hwirq >= NR_IRQS) {
-		printk(KERN_EMERG "%s: cannot handle IRQ %d\n",
-				__func__, hwirq);
-	}
-
 #ifdef CONFIG_DEBUG_STACKOVERFLOW
 	/* Debugging check for stack overflow: is there less than 1KB free? */
 	{
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/xtensa/kernel/setup.c linux-libre-4.4.107-gnu/arch/xtensa/kernel/setup.c
--- linux-libre-4.4-gnu/arch/xtensa/kernel/setup.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/xtensa/kernel/setup.c	2017-12-20 04:05:01.000000000 -0500
@@ -133,6 +133,8 @@ static int __init parse_tag_initrd(const
 
 __tagtable(BP_TAG_INITRD, parse_tag_initrd);
 
+#endif /* CONFIG_BLK_DEV_INITRD */
+
 #ifdef CONFIG_OF
 
 static int __init parse_tag_fdt(const bp_tag_t *tag)
@@ -145,8 +147,6 @@ __tagtable(BP_TAG_FDT, parse_tag_fdt);
 
 #endif /* CONFIG_OF */
 
-#endif /* CONFIG_BLK_DEV_INITRD */
-
 static int __init parse_tag_cmdline(const bp_tag_t* tag)
 {
 	strlcpy(command_line, (char *)(tag->data), COMMAND_LINE_SIZE);
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/xtensa/kernel/syscall.c linux-libre-4.4.107-gnu/arch/xtensa/kernel/syscall.c
--- linux-libre-4.4-gnu/arch/xtensa/kernel/syscall.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/xtensa/kernel/syscall.c	2017-12-20 04:05:01.000000000 -0500
@@ -87,7 +87,7 @@ unsigned long arch_get_unmapped_area(str
 		/* At this point:  (!vmm || addr < vmm->vm_end). */
 		if (TASK_SIZE - len < addr)
 			return -ENOMEM;
-		if (!vmm || addr + len <= vmm->vm_start)
+		if (!vmm || addr + len <= vm_start_gap(vmm))
 			return addr;
 		addr = vmm->vm_end;
 		if (flags & MAP_SHARED)
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/xtensa/mm/cache.c linux-libre-4.4.107-gnu/arch/xtensa/mm/cache.c
--- linux-libre-4.4-gnu/arch/xtensa/mm/cache.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/xtensa/mm/cache.c	2017-12-20 04:05:01.000000000 -0500
@@ -97,11 +97,11 @@ void clear_user_highpage(struct page *pa
 	unsigned long paddr;
 	void *kvaddr = coherent_kvaddr(page, TLBTEMP_BASE_1, vaddr, &paddr);
 
-	pagefault_disable();
+	preempt_disable();
 	kmap_invalidate_coherent(page, vaddr);
 	set_bit(PG_arch_1, &page->flags);
 	clear_page_alias(kvaddr, paddr);
-	pagefault_enable();
+	preempt_enable();
 }
 
 void copy_user_highpage(struct page *dst, struct page *src,
@@ -113,11 +113,11 @@ void copy_user_highpage(struct page *dst
 	void *src_vaddr = coherent_kvaddr(src, TLBTEMP_BASE_2, vaddr,
 					  &src_paddr);
 
-	pagefault_disable();
+	preempt_disable();
 	kmap_invalidate_coherent(dst, vaddr);
 	set_bit(PG_arch_1, &dst->flags);
 	copy_page_alias(dst_vaddr, src_vaddr, dst_paddr, src_paddr);
-	pagefault_enable();
+	preempt_enable();
 }
 
 #endif /* DCACHE_WAY_SIZE > PAGE_SIZE */
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/xtensa/platforms/iss/console.c linux-libre-4.4.107-gnu/arch/xtensa/platforms/iss/console.c
--- linux-libre-4.4-gnu/arch/xtensa/platforms/iss/console.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/xtensa/platforms/iss/console.c	2017-12-20 04:05:01.000000000 -0500
@@ -100,21 +100,23 @@ static void rs_poll(unsigned long priv)
 {
 	struct tty_port *port = (struct tty_port *)priv;
 	int i = 0;
+	int rd = 1;
 	unsigned char c;
 
 	spin_lock(&timer_lock);
 
 	while (simc_poll(0)) {
-		simc_read(0, &c, 1);
+		rd = simc_read(0, &c, 1);
+		if (rd <= 0)
+			break;
 		tty_insert_flip_char(port, c, TTY_NORMAL);
 		i++;
 	}
 
 	if (i)
 		tty_flip_buffer_push(port);
-
-
-	mod_timer(&serial_timer, jiffies + SERIAL_TIMER_VALUE);
+	if (rd)
+		mod_timer(&serial_timer, jiffies + SERIAL_TIMER_VALUE);
 	spin_unlock(&timer_lock);
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/xtensa/platforms/xtfpga/include/platform/hardware.h linux-libre-4.4.107-gnu/arch/xtensa/platforms/xtfpga/include/platform/hardware.h
--- linux-libre-4.4-gnu/arch/xtensa/platforms/xtfpga/include/platform/hardware.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/xtensa/platforms/xtfpga/include/platform/hardware.h	2017-12-20 04:05:01.000000000 -0500
@@ -24,16 +24,18 @@
 
 /* Interrupt configuration. */
 
-#define PLATFORM_NR_IRQS	10
+#define PLATFORM_NR_IRQS	0
 
 /* Default assignment of LX60 devices to external interrupts. */
 
 #ifdef CONFIG_XTENSA_MX
 #define DUART16552_INTNUM	XCHAL_EXTINT3_NUM
 #define OETH_IRQ		XCHAL_EXTINT4_NUM
+#define C67X00_IRQ		XCHAL_EXTINT8_NUM
 #else
 #define DUART16552_INTNUM	XCHAL_EXTINT0_NUM
 #define OETH_IRQ		XCHAL_EXTINT1_NUM
+#define C67X00_IRQ		XCHAL_EXTINT5_NUM
 #endif
 
 /*
@@ -63,5 +65,5 @@
 
 #define C67X00_PADDR		(XCHAL_KIO_PADDR + 0x0D0D0000)
 #define C67X00_SIZE		0x10
-#define C67X00_IRQ		5
+
 #endif /* __XTENSA_XTAVNET_HARDWARE_H */
diff -druNp --no-dereference linux-libre-4.4-gnu/arch/xtensa/platforms/xtfpga/setup.c linux-libre-4.4.107-gnu/arch/xtensa/platforms/xtfpga/setup.c
--- linux-libre-4.4-gnu/arch/xtensa/platforms/xtfpga/setup.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/arch/xtensa/platforms/xtfpga/setup.c	2017-12-20 04:05:01.000000000 -0500
@@ -209,8 +209,8 @@ static struct resource ethoc_res[] = {
 		.flags = IORESOURCE_MEM,
 	},
 	[2] = { /* IRQ number */
-		.start = OETH_IRQ,
-		.end   = OETH_IRQ,
+		.start = XTENSA_PIC_LINUX_IRQ(OETH_IRQ),
+		.end   = XTENSA_PIC_LINUX_IRQ(OETH_IRQ),
 		.flags = IORESOURCE_IRQ,
 	},
 };
@@ -246,8 +246,8 @@ static struct resource c67x00_res[] = {
 		.flags = IORESOURCE_MEM,
 	},
 	[1] = { /* IRQ number */
-		.start = C67X00_IRQ,
-		.end   = C67X00_IRQ,
+		.start = XTENSA_PIC_LINUX_IRQ(C67X00_IRQ),
+		.end   = XTENSA_PIC_LINUX_IRQ(C67X00_IRQ),
 		.flags = IORESOURCE_IRQ,
 	},
 };
@@ -280,7 +280,7 @@ static struct resource serial_resource =
 static struct plat_serial8250_port serial_platform_data[] = {
 	[0] = {
 		.mapbase	= DUART16552_PADDR,
-		.irq		= DUART16552_INTNUM,
+		.irq		= XTENSA_PIC_LINUX_IRQ(DUART16552_INTNUM),
 		.flags		= UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
 				  UPF_IOREMAP,
 		.iotype		= UPIO_MEM32,
diff -druNp --no-dereference linux-libre-4.4-gnu/block/bio.c linux-libre-4.4.107-gnu/block/bio.c
--- linux-libre-4.4-gnu/block/bio.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/block/bio.c	2017-12-20 04:05:01.000000000 -0500
@@ -373,10 +373,14 @@ static void punt_bios_to_rescuer(struct
 	bio_list_init(&punt);
 	bio_list_init(&nopunt);
 
-	while ((bio = bio_list_pop(current->bio_list)))
+	while ((bio = bio_list_pop(&current->bio_list[0])))
 		bio_list_add(bio->bi_pool == bs ? &punt : &nopunt, bio);
+	current->bio_list[0] = nopunt;
 
-	*current->bio_list = nopunt;
+	bio_list_init(&nopunt);
+	while ((bio = bio_list_pop(&current->bio_list[1])))
+		bio_list_add(bio->bi_pool == bs ? &punt : &nopunt, bio);
+	current->bio_list[1] = nopunt;
 
 	spin_lock(&bs->rescue_lock);
 	bio_list_merge(&bs->rescue_list, &punt);
@@ -464,7 +468,9 @@ struct bio *bio_alloc_bioset(gfp_t gfp_m
 		 * we retry with the original gfp_flags.
 		 */
 
-		if (current->bio_list && !bio_list_empty(current->bio_list))
+		if (current->bio_list &&
+		    (!bio_list_empty(&current->bio_list[0]) ||
+		     !bio_list_empty(&current->bio_list[1])))
 			gfp_mask &= ~__GFP_DIRECT_RECLAIM;
 
 		p = mempool_alloc(bs->bio_pool, gfp_mask);
@@ -584,6 +590,8 @@ void __bio_clone_fast(struct bio *bio, s
 	bio->bi_rw = bio_src->bi_rw;
 	bio->bi_iter = bio_src->bi_iter;
 	bio->bi_io_vec = bio_src->bi_io_vec;
+
+	bio_clone_blkcg_association(bio, bio_src);
 }
 EXPORT_SYMBOL(__bio_clone_fast);
 
@@ -689,6 +697,8 @@ integrity_clone:
 		}
 	}
 
+	bio_clone_blkcg_association(bio, bio_src);
+
 	return bio;
 }
 EXPORT_SYMBOL(bio_clone_bioset);
@@ -1090,9 +1100,12 @@ int bio_uncopy_user(struct bio *bio)
 	if (!bio_flagged(bio, BIO_NULL_MAPPED)) {
 		/*
 		 * if we're in a workqueue, the request is orphaned, so
-		 * don't copy into a random user address space, just free.
+		 * don't copy into a random user address space, just free
+		 * and return -EINTR so user space doesn't expect any data.
 		 */
-		if (current->mm && bio_data_dir(bio) == READ)
+		if (!current->mm)
+			ret = -EINTR;
+		else if (bio_data_dir(bio) == READ)
 			ret = bio_copy_to_iter(bio, bmd->iter);
 		if (bmd->is_our_pages)
 			bio_free_pages(bio);
@@ -1255,6 +1268,7 @@ struct bio *bio_map_user_iov(struct requ
 	int ret, offset;
 	struct iov_iter i;
 	struct iovec iov;
+	struct bio_vec *bvec;
 
 	iov_for_each(iov, i, *iter) {
 		unsigned long uaddr = (unsigned long) iov.iov_base;
@@ -1299,7 +1313,12 @@ struct bio *bio_map_user_iov(struct requ
 		ret = get_user_pages_fast(uaddr, local_nr_pages,
 				(iter->type & WRITE) != WRITE,
 				&pages[cur_page]);
-		if (ret < local_nr_pages) {
+		if (unlikely(ret < local_nr_pages)) {
+			for (j = cur_page; j < page_limit; j++) {
+				if (!pages[j])
+					break;
+				put_page(pages[j]);
+			}
 			ret = -EFAULT;
 			goto out_unmap;
 		}
@@ -1307,6 +1326,7 @@ struct bio *bio_map_user_iov(struct requ
 		offset = uaddr & ~PAGE_MASK;
 		for (j = cur_page; j < page_limit; j++) {
 			unsigned int bytes = PAGE_SIZE - offset;
+			unsigned short prev_bi_vcnt = bio->bi_vcnt;
 
 			if (len <= 0)
 				break;
@@ -1321,6 +1341,13 @@ struct bio *bio_map_user_iov(struct requ
 					    bytes)
 				break;
 
+			/*
+			 * check if vector was merged with previous
+			 * drop page reference if needed
+			 */
+			if (bio->bi_vcnt == prev_bi_vcnt)
+				put_page(pages[j]);
+
 			len -= bytes;
 			offset = 0;
 		}
@@ -1353,10 +1380,8 @@ struct bio *bio_map_user_iov(struct requ
 	return bio;
 
  out_unmap:
-	for (j = 0; j < nr_pages; j++) {
-		if (!pages[j])
-			break;
-		page_cache_release(pages[j]);
+	bio_for_each_segment_all(bvec, bio, j) {
+		put_page(bvec->bv_page);
 	}
  out:
 	kfree(pages);
@@ -2011,6 +2036,17 @@ void bio_disassociate_task(struct bio *b
 	}
 }
 
+/**
+ * bio_clone_blkcg_association - clone blkcg association from src to dst bio
+ * @dst: destination bio
+ * @src: source bio
+ */
+void bio_clone_blkcg_association(struct bio *dst, struct bio *src)
+{
+	if (src->bi_css)
+		WARN_ON(bio_associate_blkcg(dst, src->bi_css));
+}
+
 #endif /* CONFIG_BLK_CGROUP */
 
 static void __init biovec_init_slabs(void)
diff -druNp --no-dereference linux-libre-4.4-gnu/block/blk-cgroup.c linux-libre-4.4.107-gnu/block/blk-cgroup.c
--- linux-libre-4.4-gnu/block/blk-cgroup.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/block/blk-cgroup.c	2017-12-20 04:05:01.000000000 -0500
@@ -788,6 +788,7 @@ int blkg_conf_prep(struct blkcg *blkcg,
 {
 	struct gendisk *disk;
 	struct blkcg_gq *blkg;
+	struct module *owner;
 	unsigned int major, minor;
 	int key_len, part, ret;
 	char *body;
@@ -804,7 +805,9 @@ int blkg_conf_prep(struct blkcg *blkcg,
 	if (!disk)
 		return -ENODEV;
 	if (part) {
+		owner = disk->fops->owner;
 		put_disk(disk);
+		module_put(owner);
 		return -ENODEV;
 	}
 
@@ -820,7 +823,9 @@ int blkg_conf_prep(struct blkcg *blkcg,
 		ret = PTR_ERR(blkg);
 		rcu_read_unlock();
 		spin_unlock_irq(disk->queue->queue_lock);
+		owner = disk->fops->owner;
 		put_disk(disk);
+		module_put(owner);
 		/*
 		 * If queue was bypassing, we should retry.  Do so after a
 		 * short msleep().  It isn't strictly necessary but queue
@@ -851,9 +856,13 @@ EXPORT_SYMBOL_GPL(blkg_conf_prep);
 void blkg_conf_finish(struct blkg_conf_ctx *ctx)
 	__releases(ctx->disk->queue->queue_lock) __releases(rcu)
 {
+	struct module *owner;
+
 	spin_unlock_irq(ctx->disk->queue->queue_lock);
 	rcu_read_unlock();
+	owner = ctx->disk->fops->owner;
 	put_disk(ctx->disk);
+	module_put(owner);
 }
 EXPORT_SYMBOL_GPL(blkg_conf_finish);
 
@@ -1331,10 +1340,8 @@ int blkcg_policy_register(struct blkcg_p
 			struct blkcg_policy_data *cpd;
 
 			cpd = pol->cpd_alloc_fn(GFP_KERNEL);
-			if (!cpd) {
-				mutex_unlock(&blkcg_pol_mutex);
+			if (!cpd)
 				goto err_free_cpds;
-			}
 
 			blkcg->cpd[pol->plid] = cpd;
 			cpd->blkcg = blkcg;
diff -druNp --no-dereference linux-libre-4.4-gnu/block/blk-core.c linux-libre-4.4.107-gnu/block/blk-core.c
--- linux-libre-4.4-gnu/block/blk-core.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/block/blk-core.c	2017-12-20 04:05:01.000000000 -0500
@@ -233,7 +233,7 @@ EXPORT_SYMBOL(blk_start_queue_async);
  **/
 void blk_start_queue(struct request_queue *q)
 {
-	WARN_ON(!irqs_disabled());
+	WARN_ON(!in_interrupt() && !irqs_disabled());
 
 	queue_flag_clear(QUEUE_FLAG_STOPPED, q);
 	__blk_run_queue(q);
@@ -515,7 +515,9 @@ EXPORT_SYMBOL_GPL(blk_queue_bypass_end);
 
 void blk_set_queue_dying(struct request_queue *q)
 {
-	queue_flag_set_unlocked(QUEUE_FLAG_DYING, q);
+	spin_lock_irq(q->queue_lock);
+	queue_flag_set(QUEUE_FLAG_DYING, q);
+	spin_unlock_irq(q->queue_lock);
 
 	if (q->mq_ops)
 		blk_mq_wake_waiters(q);
@@ -524,8 +526,8 @@ void blk_set_queue_dying(struct request_
 
 		blk_queue_for_each_rl(rl, q) {
 			if (rl->rq_pool) {
-				wake_up(&rl->wait[BLK_RW_SYNC]);
-				wake_up(&rl->wait[BLK_RW_ASYNC]);
+				wake_up_all(&rl->wait[BLK_RW_SYNC]);
+				wake_up_all(&rl->wait[BLK_RW_ASYNC]);
 			}
 		}
 	}
@@ -2019,7 +2021,14 @@ end_io:
  */
 blk_qc_t generic_make_request(struct bio *bio)
 {
-	struct bio_list bio_list_on_stack;
+	/*
+	 * bio_list_on_stack[0] contains bios submitted by the current
+	 * make_request_fn.
+	 * bio_list_on_stack[1] contains bios that were submitted before
+	 * the current make_request_fn, but that haven't been processed
+	 * yet.
+	 */
+	struct bio_list bio_list_on_stack[2];
 	blk_qc_t ret = BLK_QC_T_NONE;
 
 	if (!generic_make_request_checks(bio))
@@ -2036,7 +2045,7 @@ blk_qc_t generic_make_request(struct bio
 	 * should be added at the tail
 	 */
 	if (current->bio_list) {
-		bio_list_add(current->bio_list, bio);
+		bio_list_add(&current->bio_list[0], bio);
 		goto out;
 	}
 
@@ -2055,24 +2064,39 @@ blk_qc_t generic_make_request(struct bio
 	 * bio_list, and call into ->make_request() again.
 	 */
 	BUG_ON(bio->bi_next);
-	bio_list_init(&bio_list_on_stack);
-	current->bio_list = &bio_list_on_stack;
+	bio_list_init(&bio_list_on_stack[0]);
+	current->bio_list = bio_list_on_stack;
 	do {
 		struct request_queue *q = bdev_get_queue(bio->bi_bdev);
 
 		if (likely(blk_queue_enter(q, __GFP_DIRECT_RECLAIM) == 0)) {
+			struct bio_list lower, same;
+
+			/* Create a fresh bio_list for all subordinate requests */
+			bio_list_on_stack[1] = bio_list_on_stack[0];
+			bio_list_init(&bio_list_on_stack[0]);
 
 			ret = q->make_request_fn(q, bio);
 
 			blk_queue_exit(q);
-
-			bio = bio_list_pop(current->bio_list);
+			/* sort new bios into those for a lower level
+			 * and those for the same level
+			 */
+			bio_list_init(&lower);
+			bio_list_init(&same);
+			while ((bio = bio_list_pop(&bio_list_on_stack[0])) != NULL)
+				if (q == bdev_get_queue(bio->bi_bdev))
+					bio_list_add(&same, bio);
+				else
+					bio_list_add(&lower, bio);
+			/* now assemble so we handle the lowest level first */
+			bio_list_merge(&bio_list_on_stack[0], &lower);
+			bio_list_merge(&bio_list_on_stack[0], &same);
+			bio_list_merge(&bio_list_on_stack[0], &bio_list_on_stack[1]);
 		} else {
-			struct bio *bio_next = bio_list_pop(current->bio_list);
-
 			bio_io_error(bio);
-			bio = bio_next;
 		}
+		bio = bio_list_pop(&bio_list_on_stack[0]);
 	} while (bio);
 	current->bio_list = NULL; /* deactivate */
 
@@ -2189,7 +2213,7 @@ int blk_insert_cloned_request(struct req
 	if (q->mq_ops) {
 		if (blk_queue_io_stat(q))
 			blk_account_io_start(rq, true);
-		blk_mq_insert_request(rq, false, true, true);
+		blk_mq_insert_request(rq, false, true, false);
 		return 0;
 	}
 
diff -druNp --no-dereference linux-libre-4.4-gnu/block/blk-integrity.c linux-libre-4.4.107-gnu/block/blk-integrity.c
--- linux-libre-4.4-gnu/block/blk-integrity.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/block/blk-integrity.c	2017-12-20 04:05:01.000000000 -0500
@@ -412,12 +412,13 @@ void blk_integrity_register(struct gendi
 
 	bi->flags = BLK_INTEGRITY_VERIFY | BLK_INTEGRITY_GENERATE |
 		template->flags;
-	bi->interval_exp = ilog2(queue_logical_block_size(disk->queue));
+	bi->interval_exp = template->interval_exp ? :
+		ilog2(queue_logical_block_size(disk->queue));
 	bi->profile = template->profile ? template->profile : &nop_profile;
 	bi->tuple_size = template->tuple_size;
 	bi->tag_size = template->tag_size;
 
-	blk_integrity_revalidate(disk);
+	disk->queue->backing_dev_info.capabilities |= BDI_CAP_STABLE_WRITES;
 }
 EXPORT_SYMBOL(blk_integrity_register);
 
@@ -430,26 +431,11 @@ EXPORT_SYMBOL(blk_integrity_register);
  */
 void blk_integrity_unregister(struct gendisk *disk)
 {
-	blk_integrity_revalidate(disk);
+	disk->queue->backing_dev_info.capabilities &= ~BDI_CAP_STABLE_WRITES;
 	memset(&disk->queue->integrity, 0, sizeof(struct blk_integrity));
 }
 EXPORT_SYMBOL(blk_integrity_unregister);
 
-void blk_integrity_revalidate(struct gendisk *disk)
-{
-	struct blk_integrity *bi = &disk->queue->integrity;
-
-	if (!(disk->flags & GENHD_FL_UP))
-		return;
-
-	if (bi->profile)
-		disk->queue->backing_dev_info.capabilities |=
-			BDI_CAP_STABLE_WRITES;
-	else
-		disk->queue->backing_dev_info.capabilities &=
-			~BDI_CAP_STABLE_WRITES;
-}
-
 void blk_integrity_add(struct gendisk *disk)
 {
 	if (kobject_init_and_add(&disk->integrity_kobj, &integrity_ktype,
diff -druNp --no-dereference linux-libre-4.4-gnu/block/blk-map.c linux-libre-4.4.107-gnu/block/blk-map.c
--- linux-libre-4.4-gnu/block/blk-map.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/block/blk-map.c	2017-12-20 04:05:01.000000000 -0500
@@ -90,6 +90,9 @@ int blk_rq_map_user_iov(struct request_q
 	if (!iter || !iter->count)
 		return -EINVAL;
 
+	if (!iter_is_iovec(iter))
+		return -EINVAL;
+
 	iov_for_each(iov, i, *iter) {
 		unsigned long uaddr = (unsigned long) iov.iov_base;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/block/blk-merge.c linux-libre-4.4.107-gnu/block/blk-merge.c
--- linux-libre-4.4-gnu/block/blk-merge.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/block/blk-merge.c	2017-12-20 04:05:01.000000000 -0500
@@ -68,6 +68,18 @@ static struct bio *blk_bio_write_same_sp
 	return bio_split(bio, q->limits.max_write_same_sectors, GFP_NOIO, bs);
 }
 
+static inline unsigned get_max_io_size(struct request_queue *q,
+				       struct bio *bio)
+{
+	unsigned sectors = blk_max_size_offset(q, bio->bi_iter.bi_sector);
+	unsigned mask = queue_logical_block_size(q) - 1;
+
+	/* aligned to logical block size */
+	sectors &= ~(mask >> 9);
+
+	return sectors;
+}
+
 static struct bio *blk_bio_segment_split(struct request_queue *q,
 					 struct bio *bio,
 					 struct bio_set *bs,
@@ -79,9 +91,29 @@ static struct bio *blk_bio_segment_split
 	unsigned front_seg_size = bio->bi_seg_front_size;
 	bool do_split = true;
 	struct bio *new = NULL;
+	const unsigned max_sectors = get_max_io_size(q, bio);
+	unsigned bvecs = 0;
 
 	bio_for_each_segment(bv, bio, iter) {
-		if (sectors + (bv.bv_len >> 9) > queue_max_sectors(q))
+		/*
+		 * With arbitrary bio size, the incoming bio may be very
+		 * big. We have to split the bio into small bios so that
+		 * each holds at most BIO_MAX_PAGES bvecs because
+		 * bio_clone() can fail to allocate big bvecs.
+		 *
+		 * It should have been better to apply the limit per
+		 * request queue in which bio_clone() is involved,
+		 * instead of globally. The biggest blocker is the
+		 * bio_clone() in bio bounce.
+		 *
+		 * If bio is splitted by this reason, we should have
+		 * allowed to continue bios merging, but don't do
+		 * that now for making the change simple.
+		 *
+		 * TODO: deal with bio bounce's bio_clone() gracefully
+		 * and convert the global limit into per-queue limit.
+		 */
+		if (bvecs++ >= BIO_MAX_PAGES)
 			goto split;
 
 		/*
@@ -91,6 +123,21 @@ static struct bio *blk_bio_segment_split
 		if (bvprvp && bvec_gap_to_prev(q, bvprvp, bv.bv_offset))
 			goto split;
 
+		if (sectors + (bv.bv_len >> 9) > max_sectors) {
+			/*
+			 * Consider this a new segment if we're splitting in
+			 * the middle of this vector.
+			 */
+			if (nsegs < queue_max_segments(q) &&
+			    sectors < max_sectors) {
+				nsegs++;
+				sectors = max_sectors;
+			}
+			if (sectors)
+				goto split;
+			/* Make this single bvec as the 1st segment */
+		}
+
 		if (bvprvp && blk_queue_cluster(q)) {
 			if (seg_size + bv.bv_len > queue_max_segment_size(q))
 				goto new_segment;
diff -druNp --no-dereference linux-libre-4.4-gnu/block/blk-mq.c linux-libre-4.4.107-gnu/block/blk-mq.c
--- linux-libre-4.4-gnu/block/blk-mq.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/block/blk-mq.c	2017-12-20 04:05:01.000000000 -0500
@@ -601,8 +601,10 @@ static void blk_mq_check_expired(struct
 		 * If a request wasn't started before the queue was
 		 * marked dying, kill it here or it'll go unnoticed.
 		 */
-		if (unlikely(blk_queue_dying(rq->q)))
-			blk_mq_complete_request(rq, -EIO);
+		if (unlikely(blk_queue_dying(rq->q))) {
+			rq->errors = -EIO;
+			blk_mq_end_request(rq, rq->errors);
+		}
 		return;
 	}
 	if (rq->cmd_flags & REQ_NO_TIMEOUT)
@@ -778,7 +780,7 @@ static void __blk_mq_run_hw_queue(struct
 		switch (ret) {
 		case BLK_MQ_RQ_QUEUE_OK:
 			queued++;
-			continue;
+			break;
 		case BLK_MQ_RQ_QUEUE_BUSY:
 			list_add(&rq->queuelist, &rq_list);
 			__blk_mq_requeue_request(rq);
@@ -840,7 +842,7 @@ static int blk_mq_hctx_next_cpu(struct b
 		return WORK_CPU_UNBOUND;
 
 	if (--hctx->next_cpu_batch <= 0) {
-		int cpu = hctx->next_cpu, next_cpu;
+		int next_cpu;
 
 		next_cpu = cpumask_next(hctx->next_cpu, hctx->cpumask);
 		if (next_cpu >= nr_cpu_ids)
@@ -848,8 +850,6 @@ static int blk_mq_hctx_next_cpu(struct b
 
 		hctx->next_cpu = next_cpu;
 		hctx->next_cpu_batch = BLK_MQ_CPU_WORK_BATCH;
-
-		return cpu;
 	}
 
 	return hctx->next_cpu;
@@ -1259,12 +1259,9 @@ static blk_qc_t blk_mq_make_request(stru
 
 	blk_queue_split(q, &bio, q->bio_split);
 
-	if (!is_flush_fua && !blk_queue_nomerges(q)) {
-		if (blk_attempt_plug_merge(q, bio, &request_count,
-					   &same_queue_rq))
-			return BLK_QC_T_NONE;
-	} else
-		request_count = blk_plug_queued_count(q);
+	if (!is_flush_fua && !blk_queue_nomerges(q) &&
+	    blk_attempt_plug_merge(q, bio, &request_count, &same_queue_rq))
+		return BLK_QC_T_NONE;
 
 	rq = blk_mq_map_request(q, bio, &data);
 	if (unlikely(!rq))
@@ -1311,9 +1308,9 @@ static blk_qc_t blk_mq_make_request(stru
 		blk_mq_put_ctx(data.ctx);
 		if (!old_rq)
 			goto done;
-		if (!blk_mq_direct_issue_request(old_rq, &cookie))
-			goto done;
-		blk_mq_insert_request(old_rq, false, true, true);
+		if (test_bit(BLK_MQ_S_STOPPED, &data.hctx->state) ||
+		    blk_mq_direct_issue_request(old_rq, &cookie) != 0)
+			blk_mq_insert_request(old_rq, false, true, true);
 		goto done;
 	}
 
@@ -1355,9 +1352,11 @@ static blk_qc_t blk_sq_make_request(stru
 
 	blk_queue_split(q, &bio, q->bio_split);
 
-	if (!is_flush_fua && !blk_queue_nomerges(q) &&
-	    blk_attempt_plug_merge(q, bio, &request_count, NULL))
-		return BLK_QC_T_NONE;
+	if (!is_flush_fua && !blk_queue_nomerges(q)) {
+		if (blk_attempt_plug_merge(q, bio, &request_count, NULL))
+			return BLK_QC_T_NONE;
+	} else
+		request_count = blk_plug_queued_count(q);
 
 	rq = blk_mq_map_request(q, bio, &data);
 	if (unlikely(!rq))
@@ -1471,7 +1470,7 @@ static struct blk_mq_tags *blk_mq_init_r
 	INIT_LIST_HEAD(&tags->page_list);
 
 	tags->rqs = kzalloc_node(set->queue_depth * sizeof(struct request *),
-				 GFP_KERNEL | __GFP_NOWARN | __GFP_NORETRY,
+				 GFP_NOIO | __GFP_NOWARN | __GFP_NORETRY,
 				 set->numa_node);
 	if (!tags->rqs) {
 		blk_mq_free_tags(tags);
@@ -1497,7 +1496,7 @@ static struct blk_mq_tags *blk_mq_init_r
 
 		do {
 			page = alloc_pages_node(set->numa_node,
-				GFP_KERNEL | __GFP_NOWARN | __GFP_NORETRY | __GFP_ZERO,
+				GFP_NOIO | __GFP_NOWARN | __GFP_NORETRY | __GFP_ZERO,
 				this_order);
 			if (page)
 				break;
@@ -1518,7 +1517,7 @@ static struct blk_mq_tags *blk_mq_init_r
 		 * Allow kmemleak to scan these pages as they contain pointers
 		 * to additional allocations like via ops->init_request().
 		 */
-		kmemleak_alloc(p, order_to_size(this_order), 1, GFP_KERNEL);
+		kmemleak_alloc(p, order_to_size(this_order), 1, GFP_NOIO);
 		entries_per_page = order_to_size(this_order) / rq_size;
 		to_do = min(entries_per_page, set->queue_depth - i);
 		left -= to_do * rq_size;
diff -druNp --no-dereference linux-libre-4.4-gnu/block/blk-settings.c linux-libre-4.4.107-gnu/block/blk-settings.c
--- linux-libre-4.4-gnu/block/blk-settings.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/block/blk-settings.c	2017-12-20 04:05:01.000000000 -0500
@@ -91,8 +91,8 @@ void blk_set_default_limits(struct queue
 	lim->seg_boundary_mask = BLK_SEG_BOUNDARY_MASK;
 	lim->virt_boundary_mask = 0;
 	lim->max_segment_size = BLK_MAX_SEGMENT_SIZE;
-	lim->max_sectors = lim->max_dev_sectors = lim->max_hw_sectors =
-		BLK_SAFE_MAX_SECTORS;
+	lim->max_sectors = lim->max_hw_sectors = BLK_SAFE_MAX_SECTORS;
+	lim->max_dev_sectors = 0;
 	lim->chunk_sectors = 0;
 	lim->max_write_same_sectors = 0;
 	lim->max_discard_sectors = 0;
diff -druNp --no-dereference linux-libre-4.4-gnu/block/bsg.c linux-libre-4.4.107-gnu/block/bsg.c
--- linux-libre-4.4-gnu/block/bsg.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/block/bsg.c	2017-12-20 04:05:01.000000000 -0500
@@ -655,6 +655,9 @@ bsg_write(struct file *file, const char
 
 	dprintk("%s: write %Zd bytes\n", bd->name, count);
 
+	if (unlikely(segment_eq(get_fs(), KERNEL_DS)))
+		return -EINVAL;
+
 	bsg_set_block(bd, file);
 
 	bytes_written = 0;
diff -druNp --no-dereference linux-libre-4.4-gnu/block/cfq-iosched.c linux-libre-4.4.107-gnu/block/cfq-iosched.c
--- linux-libre-4.4-gnu/block/cfq-iosched.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/block/cfq-iosched.c	2017-12-20 04:05:01.000000000 -0500
@@ -1572,7 +1572,7 @@ static struct blkcg_policy_data *cfq_cpd
 {
 	struct cfq_group_data *cgd;
 
-	cgd = kzalloc(sizeof(*cgd), GFP_KERNEL);
+	cgd = kzalloc(sizeof(*cgd), gfp);
 	if (!cgd)
 		return NULL;
 	return &cgd->cpd;
@@ -3003,7 +3003,6 @@ static struct request *cfq_check_fifo(st
 	if (time_before(jiffies, rq->fifo_time))
 		rq = NULL;
 
-	cfq_log_cfqq(cfqq->cfqd, cfqq, "fifo=%p", rq);
 	return rq;
 }
 
@@ -3377,6 +3376,9 @@ static bool cfq_may_dispatch(struct cfq_
 {
 	unsigned int max_dispatch;
 
+	if (cfq_cfqq_must_dispatch(cfqq))
+		return true;
+
 	/*
 	 * Drain async requests before we start sync IO
 	 */
@@ -3468,15 +3470,20 @@ static bool cfq_dispatch_request(struct
 
 	BUG_ON(RB_EMPTY_ROOT(&cfqq->sort_list));
 
+	rq = cfq_check_fifo(cfqq);
+	if (rq)
+		cfq_mark_cfqq_must_dispatch(cfqq);
+
 	if (!cfq_may_dispatch(cfqd, cfqq))
 		return false;
 
 	/*
 	 * follow expired path, else get first next available
 	 */
-	rq = cfq_check_fifo(cfqq);
 	if (!rq)
 		rq = cfqq->next_rq;
+	else
+		cfq_log_cfqq(cfqq->cfqd, cfqq, "fifo=%p", rq);
 
 	/*
 	 * insert request into driver dispatch list
@@ -3944,7 +3951,7 @@ cfq_should_preempt(struct cfq_data *cfqd
 	 * if the new request is sync, but the currently running queue is
 	 * not, let the sync request have priority.
 	 */
-	if (rq_is_sync(rq) && !cfq_cfqq_sync(cfqq))
+	if (rq_is_sync(rq) && !cfq_cfqq_sync(cfqq) && !cfq_cfqq_must_dispatch(cfqq))
 		return true;
 
 	if (new_cfqq->cfqg != cfqq->cfqg)
diff -druNp --no-dereference linux-libre-4.4-gnu/block/genhd.c linux-libre-4.4.107-gnu/block/genhd.c
--- linux-libre-4.4-gnu/block/genhd.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/block/genhd.c	2017-12-20 04:05:01.000000000 -0500
@@ -612,7 +612,7 @@ void add_disk(struct gendisk *disk)
 
 	/* Register BDI before referencing it from bdev */
 	bdi = &disk->queue->backing_dev_info;
-	bdi_register_dev(bdi, disk_devt(disk));
+	bdi_register_owner(bdi, disk_to_dev(disk));
 
 	blk_register_region(disk_devt(disk), disk->minors, NULL,
 			    exact_match, exact_lock, disk);
@@ -664,7 +664,6 @@ void del_gendisk(struct gendisk *disk)
 
 	kobject_put(disk->part0.holder_dir);
 	kobject_put(disk->slave_dir);
-	disk->driverfs_dev = NULL;
 	if (!sysfs_deprecated)
 		sysfs_remove_link(block_depr, dev_name(disk_to_dev(disk)));
 	pm_runtime_set_memalloc_noio(disk_to_dev(disk), false);
@@ -831,6 +830,7 @@ static void disk_seqf_stop(struct seq_fi
 	if (iter) {
 		class_dev_iter_exit(iter);
 		kfree(iter);
+		seqf->private = NULL;
 	}
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/block/ioprio.c linux-libre-4.4.107-gnu/block/ioprio.c
--- linux-libre-4.4-gnu/block/ioprio.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/block/ioprio.c	2017-12-20 04:05:01.000000000 -0500
@@ -150,8 +150,10 @@ static int get_task_ioprio(struct task_s
 	if (ret)
 		goto out;
 	ret = IOPRIO_PRIO_VALUE(IOPRIO_CLASS_NONE, IOPRIO_NORM);
+	task_lock(p);
 	if (p->io_context)
 		ret = p->io_context->ioprio;
+	task_unlock(p);
 out:
 	return ret;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/block/partition-generic.c linux-libre-4.4.107-gnu/block/partition-generic.c
--- linux-libre-4.4-gnu/block/partition-generic.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/block/partition-generic.c	2017-12-20 04:05:01.000000000 -0500
@@ -349,15 +349,20 @@ struct hd_struct *add_partition(struct g
 			goto out_del;
 	}
 
+	err = hd_ref_init(p);
+	if (err) {
+		if (flags & ADDPART_FLAG_WHOLEDISK)
+			goto out_remove_file;
+		goto out_del;
+	}
+
 	/* everything is up and running, commence */
 	rcu_assign_pointer(ptbl->part[partno], p);
 
 	/* suppress uevent if the disk suppresses it */
 	if (!dev_get_uevent_suppress(ddev))
 		kobject_uevent(&pdev->kobj, KOBJ_ADD);
-
-	if (!hd_ref_init(p))
-		return p;
+	return p;
 
 out_free_info:
 	free_part_info(p);
@@ -366,6 +371,8 @@ out_free_stats:
 out_free:
 	kfree(p);
 	return ERR_PTR(err);
+out_remove_file:
+	device_remove_file(pdev, &dev_attr_whole_disk);
 out_del:
 	kobject_put(p->holder_dir);
 	device_del(pdev);
@@ -428,7 +435,6 @@ rescan:
 
 	if (disk->fops->revalidate_disk)
 		disk->fops->revalidate_disk(disk);
-	blk_integrity_revalidate(disk);
 	check_disk_size_change(disk, bdev);
 	bdev->bd_invalidated = 0;
 	if (!get_capacity(disk) || !(state = check_partition(disk, bdev)))
diff -druNp --no-dereference linux-libre-4.4-gnu/block/partitions/efi.c linux-libre-4.4.107-gnu/block/partitions/efi.c
--- linux-libre-4.4-gnu/block/partitions/efi.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/block/partitions/efi.c	2017-12-20 04:05:01.000000000 -0500
@@ -293,7 +293,7 @@ static gpt_entry *alloc_read_gpt_entries
 	if (!gpt)
 		return NULL;
 
-	count = le32_to_cpu(gpt->num_partition_entries) *
+	count = (size_t)le32_to_cpu(gpt->num_partition_entries) *
                 le32_to_cpu(gpt->sizeof_partition_entry);
 	if (!count)
 		return NULL;
@@ -352,7 +352,7 @@ static int is_gpt_valid(struct parsed_pa
 			gpt_header **gpt, gpt_entry **ptes)
 {
 	u32 crc, origcrc;
-	u64 lastlba;
+	u64 lastlba, pt_size;
 
 	if (!ptes)
 		return 0;
@@ -434,13 +434,20 @@ static int is_gpt_valid(struct parsed_pa
 		goto fail;
 	}
 
+	/* Sanity check partition table size */
+	pt_size = (u64)le32_to_cpu((*gpt)->num_partition_entries) *
+		le32_to_cpu((*gpt)->sizeof_partition_entry);
+	if (pt_size > KMALLOC_MAX_SIZE) {
+		pr_debug("GUID Partition Table is too large: %llu > %lu bytes\n",
+			 (unsigned long long)pt_size, KMALLOC_MAX_SIZE);
+		goto fail;
+	}
+
 	if (!(*ptes = alloc_read_gpt_entries(state, *gpt)))
 		goto fail;
 
 	/* Check the GUID Partition Entry Array CRC */
-	crc = efi_crc32((const unsigned char *) (*ptes),
-			le32_to_cpu((*gpt)->num_partition_entries) *
-			le32_to_cpu((*gpt)->sizeof_partition_entry));
+	crc = efi_crc32((const unsigned char *) (*ptes), pt_size);
 
 	if (crc != le32_to_cpu((*gpt)->partition_entry_array_crc32)) {
 		pr_debug("GUID Partitition Entry Array CRC check failed.\n");
diff -druNp --no-dereference linux-libre-4.4-gnu/block/partitions/msdos.c linux-libre-4.4.107-gnu/block/partitions/msdos.c
--- linux-libre-4.4-gnu/block/partitions/msdos.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/block/partitions/msdos.c	2017-12-20 04:05:01.000000000 -0500
@@ -300,6 +300,8 @@ static void parse_bsd(struct parsed_part
 			continue;
 		bsd_start = le32_to_cpu(p->p_offset);
 		bsd_size = le32_to_cpu(p->p_size);
+		if (memcmp(flavour, "bsd\0", 4) == 0)
+			bsd_start += offset;
 		if (offset == bsd_start && size == bsd_size)
 			/* full parent partition, we have it already */
 			continue;
diff -druNp --no-dereference linux-libre-4.4-gnu/block/scsi_ioctl.c linux-libre-4.4.107-gnu/block/scsi_ioctl.c
--- linux-libre-4.4-gnu/block/scsi_ioctl.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/block/scsi_ioctl.c	2017-12-20 04:05:01.000000000 -0500
@@ -182,6 +182,9 @@ static void blk_set_cmd_filter_defaults(
 	__set_bit(WRITE_16, filter->write_ok);
 	__set_bit(WRITE_LONG, filter->write_ok);
 	__set_bit(WRITE_LONG_2, filter->write_ok);
+	__set_bit(WRITE_SAME, filter->write_ok);
+	__set_bit(WRITE_SAME_16, filter->write_ok);
+	__set_bit(WRITE_SAME_32, filter->write_ok);
 	__set_bit(ERASE, filter->write_ok);
 	__set_bit(GPCMD_MODE_SELECT_10, filter->write_ok);
 	__set_bit(MODE_SELECT, filter->write_ok);
diff -druNp --no-dereference linux-libre-4.4-gnu/crypto/af_alg.c linux-libre-4.4.107-gnu/crypto/af_alg.c
--- linux-libre-4.4-gnu/crypto/af_alg.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/crypto/af_alg.c	2017-12-20 04:05:01.000000000 -0500
@@ -76,6 +76,8 @@ int af_alg_register_type(const struct af
 		goto unlock;
 
 	type->ops->owner = THIS_MODULE;
+	if (type->ops_nokey)
+		type->ops_nokey->owner = THIS_MODULE;
 	node->type = type;
 	list_add(&node->list, &alg_types);
 	err = 0;
@@ -125,6 +127,26 @@ int af_alg_release(struct socket *sock)
 }
 EXPORT_SYMBOL_GPL(af_alg_release);
 
+void af_alg_release_parent(struct sock *sk)
+{
+	struct alg_sock *ask = alg_sk(sk);
+	unsigned int nokey = ask->nokey_refcnt;
+	bool last = nokey && !ask->refcnt;
+
+	sk = ask->parent;
+	ask = alg_sk(sk);
+
+	lock_sock(sk);
+	ask->nokey_refcnt -= nokey;
+	if (!last)
+		last = !--ask->refcnt;
+	release_sock(sk);
+
+	if (last)
+		sock_put(sk);
+}
+EXPORT_SYMBOL_GPL(af_alg_release_parent);
+
 static int alg_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len)
 {
 	const u32 forbidden = CRYPTO_ALG_INTERNAL;
@@ -133,6 +155,7 @@ static int alg_bind(struct socket *sock,
 	struct sockaddr_alg *sa = (void *)uaddr;
 	const struct af_alg_type *type;
 	void *private;
+	int err;
 
 	if (sock->state == SS_CONNECTED)
 		return -EINVAL;
@@ -160,16 +183,22 @@ static int alg_bind(struct socket *sock,
 		return PTR_ERR(private);
 	}
 
+	err = -EBUSY;
 	lock_sock(sk);
+	if (ask->refcnt | ask->nokey_refcnt)
+		goto unlock;
 
 	swap(ask->type, type);
 	swap(ask->private, private);
 
+	err = 0;
+
+unlock:
 	release_sock(sk);
 
 	alg_do_release(type, private);
 
-	return 0;
+	return err;
 }
 
 static int alg_setkey(struct sock *sk, char __user *ukey,
@@ -202,11 +231,15 @@ static int alg_setsockopt(struct socket
 	struct sock *sk = sock->sk;
 	struct alg_sock *ask = alg_sk(sk);
 	const struct af_alg_type *type;
-	int err = -ENOPROTOOPT;
+	int err = -EBUSY;
 
 	lock_sock(sk);
+	if (ask->refcnt)
+		goto unlock;
+
 	type = ask->type;
 
+	err = -ENOPROTOOPT;
 	if (level != SOL_ALG || !type)
 		goto unlock;
 
@@ -238,6 +271,7 @@ int af_alg_accept(struct sock *sk, struc
 	struct alg_sock *ask = alg_sk(sk);
 	const struct af_alg_type *type;
 	struct sock *sk2;
+	unsigned int nokey;
 	int err;
 
 	lock_sock(sk);
@@ -257,20 +291,29 @@ int af_alg_accept(struct sock *sk, struc
 	security_sk_clone(sk, sk2);
 
 	err = type->accept(ask->private, sk2);
-	if (err) {
-		sk_free(sk2);
+
+	nokey = err == -ENOKEY;
+	if (nokey && type->accept_nokey)
+		err = type->accept_nokey(ask->private, sk2);
+
+	if (err)
 		goto unlock;
-	}
 
 	sk2->sk_family = PF_ALG;
 
-	sock_hold(sk);
+	if (nokey || !ask->refcnt++)
+		sock_hold(sk);
+	ask->nokey_refcnt += nokey;
 	alg_sk(sk2)->parent = sk;
 	alg_sk(sk2)->type = type;
+	alg_sk(sk2)->nokey_refcnt = nokey;
 
 	newsock->ops = type->ops;
 	newsock->state = SS_CONNECTED;
 
+	if (nokey)
+		newsock->ops = type->ops_nokey;
+
 	err = 0;
 
 unlock:
diff -druNp --no-dereference linux-libre-4.4-gnu/crypto/ahash.c linux-libre-4.4.107-gnu/crypto/ahash.c
--- linux-libre-4.4-gnu/crypto/ahash.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/crypto/ahash.c	2017-12-20 04:05:01.000000000 -0500
@@ -31,6 +31,7 @@ struct ahash_request_priv {
 	crypto_completion_t complete;
 	void *data;
 	u8 *result;
+	u32 flags;
 	void *ubuf[] CRYPTO_MINALIGN_ATTR;
 };
 
@@ -69,8 +70,9 @@ static int hash_walk_new_entry(struct cr
 	struct scatterlist *sg;
 
 	sg = walk->sg;
-	walk->pg = sg_page(sg);
 	walk->offset = sg->offset;
+	walk->pg = sg_page(walk->sg) + (walk->offset >> PAGE_SHIFT);
+	walk->offset = offset_in_page(walk->offset);
 	walk->entrylen = sg->length;
 
 	if (walk->entrylen > walk->total)
@@ -269,6 +271,8 @@ static int ahash_save_req(struct ahash_r
 	priv->result = req->result;
 	priv->complete = req->base.complete;
 	priv->data = req->base.data;
+	priv->flags = req->base.flags;
+
 	/*
 	 * WARNING: We do not backup req->priv here! The req->priv
 	 *          is for internal use of the Crypto API and the
@@ -283,38 +287,44 @@ static int ahash_save_req(struct ahash_r
 	return 0;
 }
 
-static void ahash_restore_req(struct ahash_request *req)
+static void ahash_restore_req(struct ahash_request *req, int err)
 {
 	struct ahash_request_priv *priv = req->priv;
 
+	if (!err)
+		memcpy(priv->result, req->result,
+		       crypto_ahash_digestsize(crypto_ahash_reqtfm(req)));
+
 	/* Restore the original crypto request. */
 	req->result = priv->result;
-	req->base.complete = priv->complete;
-	req->base.data = priv->data;
+
+	ahash_request_set_callback(req, priv->flags,
+				   priv->complete, priv->data);
 	req->priv = NULL;
 
 	/* Free the req->priv.priv from the ADJUSTED request. */
 	kzfree(priv);
 }
 
-static void ahash_op_unaligned_finish(struct ahash_request *req, int err)
+static void ahash_notify_einprogress(struct ahash_request *req)
 {
 	struct ahash_request_priv *priv = req->priv;
+	struct crypto_async_request oreq;
 
-	if (err == -EINPROGRESS)
-		return;
-
-	if (!err)
-		memcpy(priv->result, req->result,
-		       crypto_ahash_digestsize(crypto_ahash_reqtfm(req)));
+	oreq.data = priv->data;
 
-	ahash_restore_req(req);
+	priv->complete(&oreq, -EINPROGRESS);
 }
 
 static void ahash_op_unaligned_done(struct crypto_async_request *req, int err)
 {
 	struct ahash_request *areq = req->data;
 
+	if (err == -EINPROGRESS) {
+		ahash_notify_einprogress(areq);
+		return;
+	}
+
 	/*
 	 * Restore the original request, see ahash_op_unaligned() for what
 	 * goes where.
@@ -325,7 +335,7 @@ static void ahash_op_unaligned_done(stru
 	 */
 
 	/* First copy req->result into req->priv.result */
-	ahash_op_unaligned_finish(areq, err);
+	ahash_restore_req(areq, err);
 
 	/* Complete the ORIGINAL request. */
 	areq->base.complete(&areq->base, err);
@@ -341,7 +351,12 @@ static int ahash_op_unaligned(struct aha
 		return err;
 
 	err = op(req);
-	ahash_op_unaligned_finish(req, err);
+	if (err == -EINPROGRESS ||
+	    (err == -EBUSY && (ahash_request_flags(req) &
+			       CRYPTO_TFM_REQ_MAY_BACKLOG)))
+		return err;
+
+	ahash_restore_req(req, err);
 
 	return err;
 }
@@ -376,25 +391,14 @@ int crypto_ahash_digest(struct ahash_req
 }
 EXPORT_SYMBOL_GPL(crypto_ahash_digest);
 
-static void ahash_def_finup_finish2(struct ahash_request *req, int err)
+static void ahash_def_finup_done2(struct crypto_async_request *req, int err)
 {
-	struct ahash_request_priv *priv = req->priv;
+	struct ahash_request *areq = req->data;
 
 	if (err == -EINPROGRESS)
 		return;
 
-	if (!err)
-		memcpy(priv->result, req->result,
-		       crypto_ahash_digestsize(crypto_ahash_reqtfm(req)));
-
-	ahash_restore_req(req);
-}
-
-static void ahash_def_finup_done2(struct crypto_async_request *req, int err)
-{
-	struct ahash_request *areq = req->data;
-
-	ahash_def_finup_finish2(areq, err);
+	ahash_restore_req(areq, err);
 
 	areq->base.complete(&areq->base, err);
 }
@@ -405,11 +409,15 @@ static int ahash_def_finup_finish1(struc
 		goto out;
 
 	req->base.complete = ahash_def_finup_done2;
-	req->base.flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;
+
 	err = crypto_ahash_reqtfm(req)->final(req);
+	if (err == -EINPROGRESS ||
+	    (err == -EBUSY && (ahash_request_flags(req) &
+			       CRYPTO_TFM_REQ_MAY_BACKLOG)))
+		return err;
 
 out:
-	ahash_def_finup_finish2(req, err);
+	ahash_restore_req(req, err);
 	return err;
 }
 
@@ -417,7 +425,16 @@ static void ahash_def_finup_done1(struct
 {
 	struct ahash_request *areq = req->data;
 
+	if (err == -EINPROGRESS) {
+		ahash_notify_einprogress(areq);
+		return;
+	}
+
+	areq->base.flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;
+
 	err = ahash_def_finup_finish1(areq, err);
+	if (areq->priv)
+		return;
 
 	areq->base.complete(&areq->base, err);
 }
@@ -432,6 +449,11 @@ static int ahash_def_finup(struct ahash_
 		return err;
 
 	err = tfm->update(req);
+	if (err == -EINPROGRESS ||
+	    (err == -EBUSY && (ahash_request_flags(req) &
+			       CRYPTO_TFM_REQ_MAY_BACKLOG)))
+		return err;
+
 	return ahash_def_finup_finish1(req, err);
 }
 
@@ -451,6 +473,7 @@ static int crypto_ahash_init_tfm(struct
 	struct ahash_alg *alg = crypto_ahash_alg(hash);
 
 	hash->setkey = ahash_nosetkey;
+	hash->has_setkey = false;
 	hash->export = ahash_no_export;
 	hash->import = ahash_no_import;
 
@@ -463,8 +486,10 @@ static int crypto_ahash_init_tfm(struct
 	hash->finup = alg->finup ?: ahash_def_finup;
 	hash->digest = alg->digest;
 
-	if (alg->setkey)
+	if (alg->setkey) {
 		hash->setkey = alg->setkey;
+		hash->has_setkey = true;
+	}
 	if (alg->export)
 		hash->export = alg->export;
 	if (alg->import)
diff -druNp --no-dereference linux-libre-4.4-gnu/crypto/algapi.c linux-libre-4.4.107-gnu/crypto/algapi.c
--- linux-libre-4.4-gnu/crypto/algapi.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/crypto/algapi.c	2017-12-20 04:05:01.000000000 -0500
@@ -357,6 +357,7 @@ int crypto_register_alg(struct crypto_al
 	struct crypto_larval *larval;
 	int err;
 
+	alg->cra_flags &= ~CRYPTO_ALG_DEAD;
 	err = crypto_check_alg(alg);
 	if (err)
 		return err;
diff -druNp --no-dereference linux-libre-4.4-gnu/crypto/algif_aead.c linux-libre-4.4.107-gnu/crypto/algif_aead.c
--- linux-libre-4.4-gnu/crypto/algif_aead.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/crypto/algif_aead.c	2017-12-20 04:05:01.000000000 -0500
@@ -29,6 +29,11 @@ struct aead_sg_list {
 	struct scatterlist sg[ALG_MAX_PAGES];
 };
 
+struct aead_tfm {
+	struct crypto_aead *aead;
+	bool has_key;
+};
+
 struct aead_ctx {
 	struct aead_sg_list tsgl;
 	/*
@@ -513,24 +518,146 @@ static struct proto_ops algif_aead_ops =
 	.poll		=	aead_poll,
 };
 
+static int aead_check_key(struct socket *sock)
+{
+	int err = 0;
+	struct sock *psk;
+	struct alg_sock *pask;
+	struct aead_tfm *tfm;
+	struct sock *sk = sock->sk;
+	struct alg_sock *ask = alg_sk(sk);
+
+	lock_sock(sk);
+	if (ask->refcnt)
+		goto unlock_child;
+
+	psk = ask->parent;
+	pask = alg_sk(ask->parent);
+	tfm = pask->private;
+
+	err = -ENOKEY;
+	lock_sock_nested(psk, SINGLE_DEPTH_NESTING);
+	if (!tfm->has_key)
+		goto unlock;
+
+	if (!pask->refcnt++)
+		sock_hold(psk);
+
+	ask->refcnt = 1;
+	sock_put(psk);
+
+	err = 0;
+
+unlock:
+	release_sock(psk);
+unlock_child:
+	release_sock(sk);
+
+	return err;
+}
+
+static int aead_sendmsg_nokey(struct socket *sock, struct msghdr *msg,
+				  size_t size)
+{
+	int err;
+
+	err = aead_check_key(sock);
+	if (err)
+		return err;
+
+	return aead_sendmsg(sock, msg, size);
+}
+
+static ssize_t aead_sendpage_nokey(struct socket *sock, struct page *page,
+				       int offset, size_t size, int flags)
+{
+	int err;
+
+	err = aead_check_key(sock);
+	if (err)
+		return err;
+
+	return aead_sendpage(sock, page, offset, size, flags);
+}
+
+static int aead_recvmsg_nokey(struct socket *sock, struct msghdr *msg,
+				  size_t ignored, int flags)
+{
+	int err;
+
+	err = aead_check_key(sock);
+	if (err)
+		return err;
+
+	return aead_recvmsg(sock, msg, ignored, flags);
+}
+
+static struct proto_ops algif_aead_ops_nokey = {
+	.family		=	PF_ALG,
+
+	.connect	=	sock_no_connect,
+	.socketpair	=	sock_no_socketpair,
+	.getname	=	sock_no_getname,
+	.ioctl		=	sock_no_ioctl,
+	.listen		=	sock_no_listen,
+	.shutdown	=	sock_no_shutdown,
+	.getsockopt	=	sock_no_getsockopt,
+	.mmap		=	sock_no_mmap,
+	.bind		=	sock_no_bind,
+	.accept		=	sock_no_accept,
+	.setsockopt	=	sock_no_setsockopt,
+
+	.release	=	af_alg_release,
+	.sendmsg	=	aead_sendmsg_nokey,
+	.sendpage	=	aead_sendpage_nokey,
+	.recvmsg	=	aead_recvmsg_nokey,
+	.poll		=	aead_poll,
+};
+
 static void *aead_bind(const char *name, u32 type, u32 mask)
 {
-	return crypto_alloc_aead(name, type, mask);
+	struct aead_tfm *tfm;
+	struct crypto_aead *aead;
+
+	tfm = kzalloc(sizeof(*tfm), GFP_KERNEL);
+	if (!tfm)
+		return ERR_PTR(-ENOMEM);
+
+	aead = crypto_alloc_aead(name, type, mask);
+	if (IS_ERR(aead)) {
+		kfree(tfm);
+		return ERR_CAST(aead);
+	}
+
+	tfm->aead = aead;
+
+	return tfm;
 }
 
 static void aead_release(void *private)
 {
-	crypto_free_aead(private);
+	struct aead_tfm *tfm = private;
+
+	crypto_free_aead(tfm->aead);
+	kfree(tfm);
 }
 
 static int aead_setauthsize(void *private, unsigned int authsize)
 {
-	return crypto_aead_setauthsize(private, authsize);
+	struct aead_tfm *tfm = private;
+
+	return crypto_aead_setauthsize(tfm->aead, authsize);
 }
 
 static int aead_setkey(void *private, const u8 *key, unsigned int keylen)
 {
-	return crypto_aead_setkey(private, key, keylen);
+	struct aead_tfm *tfm = private;
+	int err;
+
+	err = crypto_aead_setkey(tfm->aead, key, keylen);
+	tfm->has_key = !err;
+
+	return err;
 }
 
 static void aead_sock_destruct(struct sock *sk)
@@ -546,12 +673,14 @@ static void aead_sock_destruct(struct so
 	af_alg_release_parent(sk);
 }
 
-static int aead_accept_parent(void *private, struct sock *sk)
+static int aead_accept_parent_nokey(void *private, struct sock *sk)
 {
 	struct aead_ctx *ctx;
 	struct alg_sock *ask = alg_sk(sk);
-	unsigned int len = sizeof(*ctx) + crypto_aead_reqsize(private);
-	unsigned int ivlen = crypto_aead_ivsize(private);
+	struct aead_tfm *tfm = private;
+	struct crypto_aead *aead = tfm->aead;
+	unsigned int len = sizeof(*ctx) + crypto_aead_reqsize(aead);
+	unsigned int ivlen = crypto_aead_ivsize(aead);
 
 	ctx = sock_kmalloc(sk, len, GFP_KERNEL);
 	if (!ctx)
@@ -577,7 +706,7 @@ static int aead_accept_parent(void *priv
 
 	ask->private = ctx;
 
-	aead_request_set_tfm(&ctx->aead_req, private);
+	aead_request_set_tfm(&ctx->aead_req, aead);
 	aead_request_set_callback(&ctx->aead_req, CRYPTO_TFM_REQ_MAY_BACKLOG,
 				  af_alg_complete, &ctx->completion);
 
@@ -586,13 +715,25 @@ static int aead_accept_parent(void *priv
 	return 0;
 }
 
+static int aead_accept_parent(void *private, struct sock *sk)
+{
+	struct aead_tfm *tfm = private;
+
+	if (!tfm->has_key)
+		return -ENOKEY;
+
+	return aead_accept_parent_nokey(private, sk);
+}
+
 static const struct af_alg_type algif_type_aead = {
 	.bind		=	aead_bind,
 	.release	=	aead_release,
 	.setkey		=	aead_setkey,
 	.setauthsize	=	aead_setauthsize,
 	.accept		=	aead_accept_parent,
+	.accept_nokey	=	aead_accept_parent_nokey,
 	.ops		=	&algif_aead_ops,
+	.ops_nokey	=	&algif_aead_ops_nokey,
 	.name		=	"aead",
 	.owner		=	THIS_MODULE
 };
diff -druNp --no-dereference linux-libre-4.4-gnu/crypto/algif_hash.c linux-libre-4.4.107-gnu/crypto/algif_hash.c
--- linux-libre-4.4-gnu/crypto/algif_hash.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/crypto/algif_hash.c	2017-12-20 04:05:01.000000000 -0500
@@ -34,6 +34,11 @@ struct hash_ctx {
 	struct ahash_request req;
 };
 
+struct algif_hash_tfm {
+	struct crypto_ahash *hash;
+	bool has_key;
+};
+
 static int hash_sendmsg(struct socket *sock, struct msghdr *msg,
 			size_t ignored)
 {
@@ -49,7 +54,8 @@ static int hash_sendmsg(struct socket *s
 
 	lock_sock(sk);
 	if (!ctx->more) {
-		err = crypto_ahash_init(&ctx->req);
+		err = af_alg_wait_for_completion(crypto_ahash_init(&ctx->req),
+						&ctx->completion);
 		if (err)
 			goto unlock;
 	}
@@ -120,6 +126,7 @@ static ssize_t hash_sendpage(struct sock
 	} else {
 		if (!ctx->more) {
 			err = crypto_ahash_init(&ctx->req);
+			err = af_alg_wait_for_completion(err, &ctx->completion);
 			if (err)
 				goto unlock;
 		}
@@ -177,7 +184,7 @@ static int hash_accept(struct socket *so
 	struct alg_sock *ask = alg_sk(sk);
 	struct hash_ctx *ctx = ask->private;
 	struct ahash_request *req = &ctx->req;
-	char state[crypto_ahash_statesize(crypto_ahash_reqtfm(req))];
+	char state[crypto_ahash_statesize(crypto_ahash_reqtfm(req)) ? : 1];
 	struct sock *sk2;
 	struct alg_sock *ask2;
 	struct hash_ctx *ctx2;
@@ -235,19 +242,151 @@ static struct proto_ops algif_hash_ops =
 	.accept		=	hash_accept,
 };
 
+static int hash_check_key(struct socket *sock)
+{
+	int err = 0;
+	struct sock *psk;
+	struct alg_sock *pask;
+	struct algif_hash_tfm *tfm;
+	struct sock *sk = sock->sk;
+	struct alg_sock *ask = alg_sk(sk);
+
+	lock_sock(sk);
+	if (ask->refcnt)
+		goto unlock_child;
+
+	psk = ask->parent;
+	pask = alg_sk(ask->parent);
+	tfm = pask->private;
+
+	err = -ENOKEY;
+	lock_sock_nested(psk, SINGLE_DEPTH_NESTING);
+	if (!tfm->has_key)
+		goto unlock;
+
+	if (!pask->refcnt++)
+		sock_hold(psk);
+
+	ask->refcnt = 1;
+	sock_put(psk);
+
+	err = 0;
+
+unlock:
+	release_sock(psk);
+unlock_child:
+	release_sock(sk);
+
+	return err;
+}
+
+static int hash_sendmsg_nokey(struct socket *sock, struct msghdr *msg,
+			      size_t size)
+{
+	int err;
+
+	err = hash_check_key(sock);
+	if (err)
+		return err;
+
+	return hash_sendmsg(sock, msg, size);
+}
+
+static ssize_t hash_sendpage_nokey(struct socket *sock, struct page *page,
+				   int offset, size_t size, int flags)
+{
+	int err;
+
+	err = hash_check_key(sock);
+	if (err)
+		return err;
+
+	return hash_sendpage(sock, page, offset, size, flags);
+}
+
+static int hash_recvmsg_nokey(struct socket *sock, struct msghdr *msg,
+			      size_t ignored, int flags)
+{
+	int err;
+
+	err = hash_check_key(sock);
+	if (err)
+		return err;
+
+	return hash_recvmsg(sock, msg, ignored, flags);
+}
+
+static int hash_accept_nokey(struct socket *sock, struct socket *newsock,
+			     int flags)
+{
+	int err;
+
+	err = hash_check_key(sock);
+	if (err)
+		return err;
+
+	return hash_accept(sock, newsock, flags);
+}
+
+static struct proto_ops algif_hash_ops_nokey = {
+	.family		=	PF_ALG,
+
+	.connect	=	sock_no_connect,
+	.socketpair	=	sock_no_socketpair,
+	.getname	=	sock_no_getname,
+	.ioctl		=	sock_no_ioctl,
+	.listen		=	sock_no_listen,
+	.shutdown	=	sock_no_shutdown,
+	.getsockopt	=	sock_no_getsockopt,
+	.mmap		=	sock_no_mmap,
+	.bind		=	sock_no_bind,
+	.setsockopt	=	sock_no_setsockopt,
+	.poll		=	sock_no_poll,
+
+	.release	=	af_alg_release,
+	.sendmsg	=	hash_sendmsg_nokey,
+	.sendpage	=	hash_sendpage_nokey,
+	.recvmsg	=	hash_recvmsg_nokey,
+	.accept		=	hash_accept_nokey,
+};
+
 static void *hash_bind(const char *name, u32 type, u32 mask)
 {
-	return crypto_alloc_ahash(name, type, mask);
+	struct algif_hash_tfm *tfm;
+	struct crypto_ahash *hash;
+
+	tfm = kzalloc(sizeof(*tfm), GFP_KERNEL);
+	if (!tfm)
+		return ERR_PTR(-ENOMEM);
+
+	hash = crypto_alloc_ahash(name, type, mask);
+	if (IS_ERR(hash)) {
+		kfree(tfm);
+		return ERR_CAST(hash);
+	}
+
+	tfm->hash = hash;
+
+	return tfm;
 }
 
 static void hash_release(void *private)
 {
-	crypto_free_ahash(private);
+	struct algif_hash_tfm *tfm = private;
+
+	crypto_free_ahash(tfm->hash);
+	kfree(tfm);
 }
 
 static int hash_setkey(void *private, const u8 *key, unsigned int keylen)
 {
-	return crypto_ahash_setkey(private, key, keylen);
+	struct algif_hash_tfm *tfm = private;
+	int err;
+
+	err = crypto_ahash_setkey(tfm->hash, key, keylen);
+	tfm->has_key = !err;
+
+	return err;
 }
 
 static void hash_sock_destruct(struct sock *sk)
@@ -261,12 +400,14 @@ static void hash_sock_destruct(struct so
 	af_alg_release_parent(sk);
 }
 
-static int hash_accept_parent(void *private, struct sock *sk)
+static int hash_accept_parent_nokey(void *private, struct sock *sk)
 {
 	struct hash_ctx *ctx;
 	struct alg_sock *ask = alg_sk(sk);
-	unsigned len = sizeof(*ctx) + crypto_ahash_reqsize(private);
-	unsigned ds = crypto_ahash_digestsize(private);
+	struct algif_hash_tfm *tfm = private;
+	struct crypto_ahash *hash = tfm->hash;
+	unsigned len = sizeof(*ctx) + crypto_ahash_reqsize(hash);
+	unsigned ds = crypto_ahash_digestsize(hash);
 
 	ctx = sock_kmalloc(sk, len, GFP_KERNEL);
 	if (!ctx)
@@ -286,7 +427,7 @@ static int hash_accept_parent(void *priv
 
 	ask->private = ctx;
 
-	ahash_request_set_tfm(&ctx->req, private);
+	ahash_request_set_tfm(&ctx->req, hash);
 	ahash_request_set_callback(&ctx->req, CRYPTO_TFM_REQ_MAY_BACKLOG,
 				   af_alg_complete, &ctx->completion);
 
@@ -295,12 +436,24 @@ static int hash_accept_parent(void *priv
 	return 0;
 }
 
+static int hash_accept_parent(void *private, struct sock *sk)
+{
+	struct algif_hash_tfm *tfm = private;
+
+	if (!tfm->has_key && crypto_ahash_has_setkey(tfm->hash))
+		return -ENOKEY;
+
+	return hash_accept_parent_nokey(private, sk);
+}
+
 static const struct af_alg_type algif_type_hash = {
 	.bind		=	hash_bind,
 	.release	=	hash_release,
 	.setkey		=	hash_setkey,
 	.accept		=	hash_accept_parent,
+	.accept_nokey	=	hash_accept_parent_nokey,
 	.ops		=	&algif_hash_ops,
+	.ops_nokey	=	&algif_hash_ops_nokey,
 	.name		=	"hash",
 	.owner		=	THIS_MODULE
 };
diff -druNp --no-dereference linux-libre-4.4-gnu/crypto/algif_skcipher.c linux-libre-4.4.107-gnu/crypto/algif_skcipher.c
--- linux-libre-4.4-gnu/crypto/algif_skcipher.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/crypto/algif_skcipher.c	2017-12-20 04:05:01.000000000 -0500
@@ -31,6 +31,11 @@ struct skcipher_sg_list {
 	struct scatterlist sg[0];
 };
 
+struct skcipher_tfm {
+	struct crypto_skcipher *skcipher;
+	bool has_key;
+};
+
 struct skcipher_ctx {
 	struct list_head tsgl;
 	struct af_alg_sgl rsgl;
@@ -60,18 +65,10 @@ struct skcipher_async_req {
 	struct skcipher_async_rsgl first_sgl;
 	struct list_head list;
 	struct scatterlist *tsg;
-	char iv[];
+	atomic_t *inflight;
+	struct skcipher_request req;
 };
 
-#define GET_SREQ(areq, ctx) (struct skcipher_async_req *)((char *)areq + \
-	crypto_skcipher_reqsize(crypto_skcipher_reqtfm(&ctx->req)))
-
-#define GET_REQ_SIZE(ctx) \
-	crypto_skcipher_reqsize(crypto_skcipher_reqtfm(&ctx->req))
-
-#define GET_IV_SIZE(ctx) \
-	crypto_skcipher_ivsize(crypto_skcipher_reqtfm(&ctx->req))
-
 #define MAX_SGL_ENTS ((4096 - sizeof(struct skcipher_sg_list)) / \
 		      sizeof(struct scatterlist) - 1)
 
@@ -89,23 +86,25 @@ static void skcipher_free_async_sgls(str
 	}
 	sgl = sreq->tsg;
 	n = sg_nents(sgl);
-	for_each_sg(sgl, sg, n, i)
-		put_page(sg_page(sg));
+	for_each_sg(sgl, sg, n, i) {
+		struct page *page = sg_page(sg);
+
+		/* some SGs may not have a page mapped */
+		if (page && atomic_read(&page->_count))
+			put_page(page);
+	}
 
 	kfree(sreq->tsg);
 }
 
 static void skcipher_async_cb(struct crypto_async_request *req, int err)
 {
-	struct sock *sk = req->data;
-	struct alg_sock *ask = alg_sk(sk);
-	struct skcipher_ctx *ctx = ask->private;
-	struct skcipher_async_req *sreq = GET_SREQ(req, ctx);
+	struct skcipher_async_req *sreq = req->data;
 	struct kiocb *iocb = sreq->iocb;
 
-	atomic_dec(&ctx->inflight);
+	atomic_dec(sreq->inflight);
 	skcipher_free_async_sgls(sreq);
-	kfree(req);
+	kzfree(sreq);
 	iocb->ki_complete(iocb, err, err);
 }
 
@@ -144,8 +143,10 @@ static int skcipher_alloc_sgl(struct soc
 		sg_init_table(sgl->sg, MAX_SGL_ENTS + 1);
 		sgl->cur = 0;
 
-		if (sg)
+		if (sg) {
 			sg_chain(sg, MAX_SGL_ENTS + 1, sgl->sg);
+			sg_unmark_end(sg + (MAX_SGL_ENTS - 1));
+		}
 
 		list_add_tail(&sgl->list, &ctx->tsgl);
 	}
@@ -301,8 +302,11 @@ static int skcipher_sendmsg(struct socke
 {
 	struct sock *sk = sock->sk;
 	struct alg_sock *ask = alg_sk(sk);
+	struct sock *psk = ask->parent;
+	struct alg_sock *pask = alg_sk(psk);
 	struct skcipher_ctx *ctx = ask->private;
-	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(&ctx->req);
+	struct skcipher_tfm *skc = pask->private;
+	struct crypto_skcipher *tfm = skc->skcipher;
 	unsigned ivsize = crypto_skcipher_ivsize(tfm);
 	struct skcipher_sg_list *sgl;
 	struct af_alg_control con = {};
@@ -387,7 +391,8 @@ static int skcipher_sendmsg(struct socke
 
 		sgl = list_entry(ctx->tsgl.prev, struct skcipher_sg_list, list);
 		sg = sgl->sg;
-		sg_unmark_end(sg + sgl->cur);
+		if (sgl->cur)
+			sg_unmark_end(sg + sgl->cur - 1);
 		do {
 			i = sgl->cur;
 			plen = min_t(int, len, PAGE_SIZE);
@@ -503,37 +508,43 @@ static int skcipher_recvmsg_async(struct
 {
 	struct sock *sk = sock->sk;
 	struct alg_sock *ask = alg_sk(sk);
+	struct sock *psk = ask->parent;
+	struct alg_sock *pask = alg_sk(psk);
 	struct skcipher_ctx *ctx = ask->private;
+	struct skcipher_tfm *skc = pask->private;
+	struct crypto_skcipher *tfm = skc->skcipher;
 	struct skcipher_sg_list *sgl;
 	struct scatterlist *sg;
 	struct skcipher_async_req *sreq;
 	struct skcipher_request *req;
 	struct skcipher_async_rsgl *last_rsgl = NULL;
-	unsigned int txbufs = 0, len = 0, tx_nents = skcipher_all_sg_nents(ctx);
-	unsigned int reqlen = sizeof(struct skcipher_async_req) +
-				GET_REQ_SIZE(ctx) + GET_IV_SIZE(ctx);
+	unsigned int txbufs = 0, len = 0, tx_nents;
+	unsigned int reqsize = crypto_skcipher_reqsize(tfm);
+	unsigned int ivsize = crypto_skcipher_ivsize(tfm);
 	int err = -ENOMEM;
 	bool mark = false;
+	char *iv;
 
-	lock_sock(sk);
-	req = kmalloc(reqlen, GFP_KERNEL);
-	if (unlikely(!req))
-		goto unlock;
+	sreq = kzalloc(sizeof(*sreq) + reqsize + ivsize, GFP_KERNEL);
+	if (unlikely(!sreq))
+		goto out;
 
-	sreq = GET_SREQ(req, ctx);
+	req = &sreq->req;
+	iv = (char *)(req + 1) + reqsize;
 	sreq->iocb = msg->msg_iocb;
-	memset(&sreq->first_sgl, '\0', sizeof(struct skcipher_async_rsgl));
 	INIT_LIST_HEAD(&sreq->list);
+	sreq->inflight = &ctx->inflight;
+
+	lock_sock(sk);
+	tx_nents = skcipher_all_sg_nents(ctx);
 	sreq->tsg = kcalloc(tx_nents, sizeof(*sg), GFP_KERNEL);
-	if (unlikely(!sreq->tsg)) {
-		kfree(req);
+	if (unlikely(!sreq->tsg))
 		goto unlock;
-	}
 	sg_init_table(sreq->tsg, tx_nents);
-	memcpy(sreq->iv, ctx->iv, GET_IV_SIZE(ctx));
-	skcipher_request_set_tfm(req, crypto_skcipher_reqtfm(&ctx->req));
-	skcipher_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
-				      skcipher_async_cb, sk);
+	memcpy(iv, ctx->iv, ivsize);
+	skcipher_request_set_tfm(req, tfm);
+	skcipher_request_set_callback(req, CRYPTO_TFM_REQ_MAY_SLEEP,
+				      skcipher_async_cb, sreq);
 
 	while (iov_iter_count(&msg->msg_iter)) {
 		struct skcipher_async_rsgl *rsgl;
@@ -609,20 +620,22 @@ static int skcipher_recvmsg_async(struct
 		sg_mark_end(sreq->tsg + txbufs - 1);
 
 	skcipher_request_set_crypt(req, sreq->tsg, sreq->first_sgl.sgl.sg,
-				   len, sreq->iv);
+				   len, iv);
 	err = ctx->enc ? crypto_skcipher_encrypt(req) :
 			 crypto_skcipher_decrypt(req);
 	if (err == -EINPROGRESS) {
 		atomic_inc(&ctx->inflight);
 		err = -EIOCBQUEUED;
+		sreq = NULL;
 		goto unlock;
 	}
 free:
 	skcipher_free_async_sgls(sreq);
-	kfree(req);
 unlock:
 	skcipher_wmem_wakeup(sk);
 	release_sock(sk);
+	kzfree(sreq);
+out:
 	return err;
 }
 
@@ -631,9 +644,12 @@ static int skcipher_recvmsg_sync(struct
 {
 	struct sock *sk = sock->sk;
 	struct alg_sock *ask = alg_sk(sk);
+	struct sock *psk = ask->parent;
+	struct alg_sock *pask = alg_sk(psk);
 	struct skcipher_ctx *ctx = ask->private;
-	unsigned bs = crypto_skcipher_blocksize(crypto_skcipher_reqtfm(
-		&ctx->req));
+	struct skcipher_tfm *skc = pask->private;
+	struct crypto_skcipher *tfm = skc->skcipher;
+	unsigned bs = crypto_skcipher_blocksize(tfm);
 	struct skcipher_sg_list *sgl;
 	struct scatterlist *sg;
 	int err = -EAGAIN;
@@ -642,13 +658,6 @@ static int skcipher_recvmsg_sync(struct
 
 	lock_sock(sk);
 	while (msg_data_left(msg)) {
-		sgl = list_first_entry(&ctx->tsgl,
-				       struct skcipher_sg_list, list);
-		sg = sgl->sg;
-
-		while (!sg->length)
-			sg++;
-
 		if (!ctx->used) {
 			err = skcipher_wait_for_data(sk, flags);
 			if (err)
@@ -669,6 +678,13 @@ static int skcipher_recvmsg_sync(struct
 		if (!used)
 			goto free;
 
+		sgl = list_first_entry(&ctx->tsgl,
+				       struct skcipher_sg_list, list);
+		sg = sgl->sg;
+
+		while (!sg->length)
+			sg++;
+
 		skcipher_request_set_crypt(&ctx->req, sg, ctx->rsgl.sg, used,
 					   ctx->iv);
 
@@ -748,19 +764,139 @@ static struct proto_ops algif_skcipher_o
 	.poll		=	skcipher_poll,
 };
 
+static int skcipher_check_key(struct socket *sock)
+{
+	int err = 0;
+	struct sock *psk;
+	struct alg_sock *pask;
+	struct skcipher_tfm *tfm;
+	struct sock *sk = sock->sk;
+	struct alg_sock *ask = alg_sk(sk);
+
+	lock_sock(sk);
+	if (ask->refcnt)
+		goto unlock_child;
+
+	psk = ask->parent;
+	pask = alg_sk(ask->parent);
+	tfm = pask->private;
+
+	err = -ENOKEY;
+	lock_sock_nested(psk, SINGLE_DEPTH_NESTING);
+	if (!tfm->has_key)
+		goto unlock;
+
+	if (!pask->refcnt++)
+		sock_hold(psk);
+
+	ask->refcnt = 1;
+	sock_put(psk);
+
+	err = 0;
+
+unlock:
+	release_sock(psk);
+unlock_child:
+	release_sock(sk);
+
+	return err;
+}
+
+static int skcipher_sendmsg_nokey(struct socket *sock, struct msghdr *msg,
+				  size_t size)
+{
+	int err;
+
+	err = skcipher_check_key(sock);
+	if (err)
+		return err;
+
+	return skcipher_sendmsg(sock, msg, size);
+}
+
+static ssize_t skcipher_sendpage_nokey(struct socket *sock, struct page *page,
+				       int offset, size_t size, int flags)
+{
+	int err;
+
+	err = skcipher_check_key(sock);
+	if (err)
+		return err;
+
+	return skcipher_sendpage(sock, page, offset, size, flags);
+}
+
+static int skcipher_recvmsg_nokey(struct socket *sock, struct msghdr *msg,
+				  size_t ignored, int flags)
+{
+	int err;
+
+	err = skcipher_check_key(sock);
+	if (err)
+		return err;
+
+	return skcipher_recvmsg(sock, msg, ignored, flags);
+}
+
+static struct proto_ops algif_skcipher_ops_nokey = {
+	.family		=	PF_ALG,
+
+	.connect	=	sock_no_connect,
+	.socketpair	=	sock_no_socketpair,
+	.getname	=	sock_no_getname,
+	.ioctl		=	sock_no_ioctl,
+	.listen		=	sock_no_listen,
+	.shutdown	=	sock_no_shutdown,
+	.getsockopt	=	sock_no_getsockopt,
+	.mmap		=	sock_no_mmap,
+	.bind		=	sock_no_bind,
+	.accept		=	sock_no_accept,
+	.setsockopt	=	sock_no_setsockopt,
+
+	.release	=	af_alg_release,
+	.sendmsg	=	skcipher_sendmsg_nokey,
+	.sendpage	=	skcipher_sendpage_nokey,
+	.recvmsg	=	skcipher_recvmsg_nokey,
+	.poll		=	skcipher_poll,
+};
+
 static void *skcipher_bind(const char *name, u32 type, u32 mask)
 {
-	return crypto_alloc_skcipher(name, type, mask);
+	struct skcipher_tfm *tfm;
+	struct crypto_skcipher *skcipher;
+
+	tfm = kzalloc(sizeof(*tfm), GFP_KERNEL);
+	if (!tfm)
+		return ERR_PTR(-ENOMEM);
+
+	skcipher = crypto_alloc_skcipher(name, type, mask);
+	if (IS_ERR(skcipher)) {
+		kfree(tfm);
+		return ERR_CAST(skcipher);
+	}
+
+	tfm->skcipher = skcipher;
+
+	return tfm;
 }
 
 static void skcipher_release(void *private)
 {
-	crypto_free_skcipher(private);
+	struct skcipher_tfm *tfm = private;
+
+	crypto_free_skcipher(tfm->skcipher);
+	kfree(tfm);
 }
 
 static int skcipher_setkey(void *private, const u8 *key, unsigned int keylen)
 {
-	return crypto_skcipher_setkey(private, key, keylen);
+	struct skcipher_tfm *tfm = private;
+	int err;
+
+	err = crypto_skcipher_setkey(tfm->skcipher, key, keylen);
+	tfm->has_key = !err;
+
+	return err;
 }
 
 static void skcipher_wait(struct sock *sk)
@@ -788,24 +924,26 @@ static void skcipher_sock_destruct(struc
 	af_alg_release_parent(sk);
 }
 
-static int skcipher_accept_parent(void *private, struct sock *sk)
+static int skcipher_accept_parent_nokey(void *private, struct sock *sk)
 {
 	struct skcipher_ctx *ctx;
 	struct alg_sock *ask = alg_sk(sk);
-	unsigned int len = sizeof(*ctx) + crypto_skcipher_reqsize(private);
+	struct skcipher_tfm *tfm = private;
+	struct crypto_skcipher *skcipher = tfm->skcipher;
+	unsigned int len = sizeof(*ctx) + crypto_skcipher_reqsize(skcipher);
 
 	ctx = sock_kmalloc(sk, len, GFP_KERNEL);
 	if (!ctx)
 		return -ENOMEM;
 
-	ctx->iv = sock_kmalloc(sk, crypto_skcipher_ivsize(private),
+	ctx->iv = sock_kmalloc(sk, crypto_skcipher_ivsize(skcipher),
 			       GFP_KERNEL);
 	if (!ctx->iv) {
 		sock_kfree_s(sk, ctx, len);
 		return -ENOMEM;
 	}
 
-	memset(ctx->iv, 0, crypto_skcipher_ivsize(private));
+	memset(ctx->iv, 0, crypto_skcipher_ivsize(skcipher));
 
 	INIT_LIST_HEAD(&ctx->tsgl);
 	ctx->len = len;
@@ -818,8 +956,9 @@ static int skcipher_accept_parent(void *
 
 	ask->private = ctx;
 
-	skcipher_request_set_tfm(&ctx->req, private);
-	skcipher_request_set_callback(&ctx->req, CRYPTO_TFM_REQ_MAY_BACKLOG,
+	skcipher_request_set_tfm(&ctx->req, skcipher);
+	skcipher_request_set_callback(&ctx->req, CRYPTO_TFM_REQ_MAY_SLEEP |
+						 CRYPTO_TFM_REQ_MAY_BACKLOG,
 				      af_alg_complete, &ctx->completion);
 
 	sk->sk_destruct = skcipher_sock_destruct;
@@ -827,12 +966,24 @@ static int skcipher_accept_parent(void *
 	return 0;
 }
 
+static int skcipher_accept_parent(void *private, struct sock *sk)
+{
+	struct skcipher_tfm *tfm = private;
+
+	if (!tfm->has_key && crypto_skcipher_has_setkey(tfm->skcipher))
+		return -ENOKEY;
+
+	return skcipher_accept_parent_nokey(private, sk);
+}
+
 static const struct af_alg_type algif_type_skcipher = {
 	.bind		=	skcipher_bind,
 	.release	=	skcipher_release,
 	.setkey		=	skcipher_setkey,
 	.accept		=	skcipher_accept_parent,
+	.accept_nokey	=	skcipher_accept_parent_nokey,
 	.ops		=	&algif_skcipher_ops,
+	.ops_nokey	=	&algif_skcipher_ops_nokey,
 	.name		=	"skcipher",
 	.owner		=	THIS_MODULE
 };
diff -druNp --no-dereference linux-libre-4.4-gnu/crypto/asymmetric_keys/Kconfig linux-libre-4.4.107-gnu/crypto/asymmetric_keys/Kconfig
--- linux-libre-4.4-gnu/crypto/asymmetric_keys/Kconfig	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/crypto/asymmetric_keys/Kconfig	2017-12-20 04:05:01.000000000 -0500
@@ -14,6 +14,7 @@ config ASYMMETRIC_PUBLIC_KEY_SUBTYPE
 	select MPILIB
 	select PUBLIC_KEY_ALGO_RSA
 	select CRYPTO_HASH_INFO
+	select CRYPTO_AKCIPHER
 	help
 	  This option provides support for asymmetric public key type handling.
 	  If signature generation and/or verification are to be used,
diff -druNp --no-dereference linux-libre-4.4-gnu/crypto/asymmetric_keys/pkcs7_parser.c linux-libre-4.4.107-gnu/crypto/asymmetric_keys/pkcs7_parser.c
--- linux-libre-4.4-gnu/crypto/asymmetric_keys/pkcs7_parser.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/crypto/asymmetric_keys/pkcs7_parser.c	2017-12-20 04:05:01.000000000 -0500
@@ -87,9 +87,12 @@ EXPORT_SYMBOL_GPL(pkcs7_free_message);
 static int pkcs7_check_authattrs(struct pkcs7_message *msg)
 {
 	struct pkcs7_signed_info *sinfo;
-	bool want;
+	bool want = false;
 
 	sinfo = msg->signed_infos;
+	if (!sinfo)
+		goto inconsistent;
+
 	if (sinfo->authattrs) {
 		want = true;
 		msg->have_authattrs = true;
@@ -547,9 +550,7 @@ int pkcs7_sig_note_set_of_authattrs(void
 	struct pkcs7_signed_info *sinfo = ctx->sinfo;
 
 	if (!test_bit(sinfo_has_content_type, &sinfo->aa_set) ||
-	    !test_bit(sinfo_has_message_digest, &sinfo->aa_set) ||
-	    (ctx->msg->data_type == OID_msIndirectData &&
-	     !test_bit(sinfo_has_ms_opus_info, &sinfo->aa_set))) {
+	    !test_bit(sinfo_has_message_digest, &sinfo->aa_set)) {
 		pr_warn("Missing required AuthAttr\n");
 		return -EBADMSG;
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/crypto/asymmetric_keys/pkcs7_trust.c linux-libre-4.4.107-gnu/crypto/asymmetric_keys/pkcs7_trust.c
--- linux-libre-4.4-gnu/crypto/asymmetric_keys/pkcs7_trust.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/crypto/asymmetric_keys/pkcs7_trust.c	2017-12-20 04:05:01.000000000 -0500
@@ -178,6 +178,8 @@ int pkcs7_validate_trust(struct pkcs7_me
 	int cached_ret = -ENOKEY;
 	int ret;
 
+	*_trusted = false;
+
 	for (p = pkcs7->certs; p; p = p->next)
 		p->seen = false;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/crypto/asymmetric_keys/x509_cert_parser.c linux-libre-4.4.107-gnu/crypto/asymmetric_keys/x509_cert_parser.c
--- linux-libre-4.4-gnu/crypto/asymmetric_keys/x509_cert_parser.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/crypto/asymmetric_keys/x509_cert_parser.c	2017-12-20 04:05:01.000000000 -0500
@@ -399,6 +399,8 @@ int x509_extract_key_data(void *context,
 	ctx->cert->pub->pkey_algo = PKEY_ALGO_RSA;
 
 	/* Discard the BIT STRING metadata */
+	if (vlen < 1 || *(const u8 *)value != 0)
+		return -EBADMSG;
 	ctx->key = value + 1;
 	ctx->key_size = vlen - 1;
 	return 0;
@@ -494,7 +496,7 @@ int x509_decode_time(time64_t *_t,  size
 		     unsigned char tag,
 		     const unsigned char *value, size_t vlen)
 {
-	static const unsigned char month_lengths[] = { 31, 29, 31, 30, 31, 30,
+	static const unsigned char month_lengths[] = { 31, 28, 31, 30, 31, 30,
 						       31, 31, 30, 31, 30, 31 };
 	const unsigned char *p = value;
 	unsigned year, mon, day, hour, min, sec, mon_len;
@@ -540,9 +542,9 @@ int x509_decode_time(time64_t *_t,  size
 		if (year % 4 == 0) {
 			mon_len = 29;
 			if (year % 100 == 0) {
-				year /= 100;
-				if (year % 4 != 0)
-					mon_len = 28;
+				mon_len = 28;
+				if (year % 400 == 0)
+					mon_len = 29;
 			}
 		}
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/crypto/async_tx/async_pq.c linux-libre-4.4.107-gnu/crypto/async_tx/async_pq.c
--- linux-libre-4.4-gnu/crypto/async_tx/async_pq.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/crypto/async_tx/async_pq.c	2017-12-20 04:05:01.000000000 -0500
@@ -368,8 +368,6 @@ async_syndrome_val(struct page **blocks,
 
 		dma_set_unmap(tx, unmap);
 		async_tx_submit(chan, tx, submit);
-
-		return tx;
 	} else {
 		struct page *p_src = P(blocks, disks);
 		struct page *q_src = Q(blocks, disks);
@@ -424,9 +422,11 @@ async_syndrome_val(struct page **blocks,
 		submit->cb_param = cb_param_orig;
 		submit->flags = flags_orig;
 		async_tx_sync_epilog(submit);
-
-		return NULL;
+		tx = NULL;
 	}
+	dmaengine_unmap_put(unmap);
+
+	return tx;
 }
 EXPORT_SYMBOL_GPL(async_syndrome_val);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/crypto/authencesn.c linux-libre-4.4.107-gnu/crypto/authencesn.c
--- linux-libre-4.4-gnu/crypto/authencesn.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/crypto/authencesn.c	2017-12-20 04:05:01.000000000 -0500
@@ -245,6 +245,9 @@ static int crypto_authenc_esn_decrypt_ta
 	u8 *ihash = ohash + crypto_ahash_digestsize(auth);
 	u32 tmp[2];
 
+	if (!authsize)
+		goto decrypt;
+
 	/* Move high-order bits of sequence number back. */
 	scatterwalk_map_and_copy(tmp, dst, 4, 4, 0);
 	scatterwalk_map_and_copy(tmp + 1, dst, assoclen + cryptlen, 4, 0);
@@ -253,6 +256,8 @@ static int crypto_authenc_esn_decrypt_ta
 	if (crypto_memneq(ihash, ohash, authsize))
 		return -EBADMSG;
 
+decrypt:
+
 	sg_init_table(areq_ctx->dst, 2);
 	dst = scatterwalk_ffwd(areq_ctx->dst, dst, assoclen);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/crypto/blkcipher.c linux-libre-4.4.107-gnu/crypto/blkcipher.c
--- linux-libre-4.4-gnu/crypto/blkcipher.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/crypto/blkcipher.c	2017-12-20 04:05:01.000000000 -0500
@@ -234,6 +234,8 @@ static int blkcipher_walk_next(struct bl
 		return blkcipher_walk_done(desc, walk, -EINVAL);
 	}
 
+	bsize = min(walk->walk_blocksize, n);
+
 	walk->flags &= ~(BLKCIPHER_WALK_SLOW | BLKCIPHER_WALK_COPY |
 			 BLKCIPHER_WALK_DIFF);
 	if (!scatterwalk_aligned(&walk->in, walk->alignmask) ||
@@ -246,7 +248,6 @@ static int blkcipher_walk_next(struct bl
 		}
 	}
 
-	bsize = min(walk->walk_blocksize, n);
 	n = scatterwalk_clamp(&walk->in, n);
 	n = scatterwalk_clamp(&walk->out, n);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/crypto/crc32c_generic.c linux-libre-4.4.107-gnu/crypto/crc32c_generic.c
--- linux-libre-4.4-gnu/crypto/crc32c_generic.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/crypto/crc32c_generic.c	2017-12-20 04:05:01.000000000 -0500
@@ -172,4 +172,3 @@ MODULE_DESCRIPTION("CRC32c (Castagnoli)
 MODULE_LICENSE("GPL");
 MODULE_ALIAS_CRYPTO("crc32c");
 MODULE_ALIAS_CRYPTO("crc32c-generic");
-MODULE_SOFTDEP("pre: crc32c");
diff -druNp --no-dereference linux-libre-4.4-gnu/crypto/cryptd.c linux-libre-4.4.107-gnu/crypto/cryptd.c
--- linux-libre-4.4-gnu/crypto/cryptd.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/crypto/cryptd.c	2017-12-20 04:05:01.000000000 -0500
@@ -594,9 +594,14 @@ static int cryptd_hash_export(struct aha
 
 static int cryptd_hash_import(struct ahash_request *req, const void *in)
 {
-	struct cryptd_hash_request_ctx *rctx = ahash_request_ctx(req);
+	struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+	struct cryptd_hash_ctx *ctx = crypto_ahash_ctx(tfm);
+	struct shash_desc *desc = cryptd_shash_desc(req);
 
-	return crypto_shash_import(&rctx->desc, in);
+	desc->tfm = ctx->child;
+	desc->flags = req->base.flags;
+
+	return crypto_shash_import(desc, in);
 }
 
 static int cryptd_create_hash(struct crypto_template *tmpl, struct rtattr **tb,
@@ -637,6 +642,7 @@ static int cryptd_create_hash(struct cry
 	inst->alg.halg.base.cra_flags = type;
 
 	inst->alg.halg.digestsize = salg->digestsize;
+	inst->alg.halg.statesize = salg->statesize;
 	inst->alg.halg.base.cra_ctxsize = sizeof(struct cryptd_hash_ctx);
 
 	inst->alg.halg.base.cra_init = cryptd_hash_init_tfm;
diff -druNp --no-dereference linux-libre-4.4-gnu/crypto/crypto_user.c linux-libre-4.4.107-gnu/crypto/crypto_user.c
--- linux-libre-4.4-gnu/crypto/crypto_user.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/crypto/crypto_user.c	2017-12-20 04:05:01.000000000 -0500
@@ -455,6 +455,7 @@ static const int crypto_msg_min[CRYPTO_N
 	[CRYPTO_MSG_NEWALG	- CRYPTO_MSG_BASE] = MSGSIZE(crypto_user_alg),
 	[CRYPTO_MSG_DELALG	- CRYPTO_MSG_BASE] = MSGSIZE(crypto_user_alg),
 	[CRYPTO_MSG_UPDATEALG	- CRYPTO_MSG_BASE] = MSGSIZE(crypto_user_alg),
+	[CRYPTO_MSG_GETALG	- CRYPTO_MSG_BASE] = MSGSIZE(crypto_user_alg),
 	[CRYPTO_MSG_DELRNG	- CRYPTO_MSG_BASE] = 0,
 };
 
@@ -499,6 +500,7 @@ static int crypto_user_rcv_msg(struct sk
 		if (link->dump == NULL)
 			return -EINVAL;
 
+		down_read(&crypto_alg_sem);
 		list_for_each_entry(alg, &crypto_alg_list, cra_list)
 			dump_alloc += CRYPTO_REPORT_MAXSIZE;
 
@@ -508,8 +510,11 @@ static int crypto_user_rcv_msg(struct sk
 				.done = link->done,
 				.min_dump_alloc = dump_alloc,
 			};
-			return netlink_dump_start(crypto_nlsk, skb, nlh, &c);
+			err = netlink_dump_start(crypto_nlsk, skb, nlh, &c);
 		}
+		up_read(&crypto_alg_sem);
+
+		return err;
 	}
 
 	err = nlmsg_parse(nlh, crypto_msg_min[type], attrs, CRYPTOCFGA_MAX,
diff -druNp --no-dereference linux-libre-4.4-gnu/crypto/echainiv.c linux-libre-4.4.107-gnu/crypto/echainiv.c
--- linux-libre-4.4-gnu/crypto/echainiv.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/crypto/echainiv.c	2017-12-20 04:05:01.000000000 -0500
@@ -1,8 +1,8 @@
 /*
  * echainiv: Encrypted Chain IV Generator
  *
- * This generator generates an IV based on a sequence number by xoring it
- * with a salt and then encrypting it with the same key as used to encrypt
+ * This generator generates an IV based on a sequence number by multiplying
+ * it with a salt and then encrypting it with the same key as used to encrypt
  * the plain text.  This algorithm requires that the block size be equal
  * to the IV size.  It is mainly useful for CBC.
  *
@@ -23,81 +23,17 @@
 #include <linux/err.h>
 #include <linux/init.h>
 #include <linux/kernel.h>
-#include <linux/mm.h>
 #include <linux/module.h>
-#include <linux/percpu.h>
-#include <linux/spinlock.h>
+#include <linux/slab.h>
 #include <linux/string.h>
 
-#define MAX_IV_SIZE 16
-
-static DEFINE_PER_CPU(u32 [MAX_IV_SIZE / sizeof(u32)], echainiv_iv);
-
-/* We don't care if we get preempted and read/write IVs from the next CPU. */
-static void echainiv_read_iv(u8 *dst, unsigned size)
-{
-	u32 *a = (u32 *)dst;
-	u32 __percpu *b = echainiv_iv;
-
-	for (; size >= 4; size -= 4) {
-		*a++ = this_cpu_read(*b);
-		b++;
-	}
-}
-
-static void echainiv_write_iv(const u8 *src, unsigned size)
-{
-	const u32 *a = (const u32 *)src;
-	u32 __percpu *b = echainiv_iv;
-
-	for (; size >= 4; size -= 4) {
-		this_cpu_write(*b, *a);
-		a++;
-		b++;
-	}
-}
-
-static void echainiv_encrypt_complete2(struct aead_request *req, int err)
-{
-	struct aead_request *subreq = aead_request_ctx(req);
-	struct crypto_aead *geniv;
-	unsigned int ivsize;
-
-	if (err == -EINPROGRESS)
-		return;
-
-	if (err)
-		goto out;
-
-	geniv = crypto_aead_reqtfm(req);
-	ivsize = crypto_aead_ivsize(geniv);
-
-	echainiv_write_iv(subreq->iv, ivsize);
-
-	if (req->iv != subreq->iv)
-		memcpy(req->iv, subreq->iv, ivsize);
-
-out:
-	if (req->iv != subreq->iv)
-		kzfree(subreq->iv);
-}
-
-static void echainiv_encrypt_complete(struct crypto_async_request *base,
-					 int err)
-{
-	struct aead_request *req = base->data;
-
-	echainiv_encrypt_complete2(req, err);
-	aead_request_complete(req, err);
-}
-
 static int echainiv_encrypt(struct aead_request *req)
 {
 	struct crypto_aead *geniv = crypto_aead_reqtfm(req);
 	struct aead_geniv_ctx *ctx = crypto_aead_ctx(geniv);
 	struct aead_request *subreq = aead_request_ctx(req);
-	crypto_completion_t compl;
-	void *data;
+	__be64 nseqno;
+	u64 seqno;
 	u8 *info;
 	unsigned int ivsize = crypto_aead_ivsize(geniv);
 	int err;
@@ -107,8 +43,6 @@ static int echainiv_encrypt(struct aead_
 
 	aead_request_set_tfm(subreq, ctx->child);
 
-	compl = echainiv_encrypt_complete;
-	data = req;
 	info = req->iv;
 
 	if (req->src != req->dst) {
@@ -123,29 +57,30 @@ static int echainiv_encrypt(struct aead_
 			return err;
 	}
 
-	if (unlikely(!IS_ALIGNED((unsigned long)info,
-				 crypto_aead_alignmask(geniv) + 1))) {
-		info = kmalloc(ivsize, req->base.flags &
-				       CRYPTO_TFM_REQ_MAY_SLEEP ? GFP_KERNEL:
-								  GFP_ATOMIC);
-		if (!info)
-			return -ENOMEM;
-
-		memcpy(info, req->iv, ivsize);
-	}
-
-	aead_request_set_callback(subreq, req->base.flags, compl, data);
+	aead_request_set_callback(subreq, req->base.flags,
+				  req->base.complete, req->base.data);
 	aead_request_set_crypt(subreq, req->dst, req->dst,
 			       req->cryptlen, info);
 	aead_request_set_ad(subreq, req->assoclen);
 
-	crypto_xor(info, ctx->salt, ivsize);
+	memcpy(&nseqno, info + ivsize - 8, 8);
+	seqno = be64_to_cpu(nseqno);
+	memset(info, 0, ivsize);
+
 	scatterwalk_map_and_copy(info, req->dst, req->assoclen, ivsize, 1);
-	echainiv_read_iv(info, ivsize);
 
-	err = crypto_aead_encrypt(subreq);
-	echainiv_encrypt_complete2(req, err);
-	return err;
+	do {
+		u64 a;
+
+		memcpy(&a, ctx->salt + ivsize - 8, 8);
+
+		a |= 1;
+		a *= seqno;
+
+		memcpy(info + ivsize - 8, &a, 8);
+	} while ((ivsize -= 8));
+
+	return crypto_aead_encrypt(subreq);
 }
 
 static int echainiv_decrypt(struct aead_request *req)
@@ -192,8 +127,7 @@ static int echainiv_aead_create(struct c
 	alg = crypto_spawn_aead_alg(spawn);
 
 	err = -EINVAL;
-	if (inst->alg.ivsize & (sizeof(u32) - 1) ||
-	    inst->alg.ivsize > MAX_IV_SIZE)
+	if (inst->alg.ivsize & (sizeof(u64) - 1) || !inst->alg.ivsize)
 		goto free_inst;
 
 	inst->alg.encrypt = echainiv_encrypt;
@@ -202,7 +136,6 @@ static int echainiv_aead_create(struct c
 	inst->alg.init = aead_init_geniv;
 	inst->alg.exit = aead_exit_geniv;
 
-	inst->alg.base.cra_alignmask |= __alignof__(u32) - 1;
 	inst->alg.base.cra_ctxsize = sizeof(struct aead_geniv_ctx);
 	inst->alg.base.cra_ctxsize += inst->alg.ivsize;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/crypto/gcm.c linux-libre-4.4.107-gnu/crypto/gcm.c
--- linux-libre-4.4-gnu/crypto/gcm.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/crypto/gcm.c	2017-12-20 04:05:01.000000000 -0500
@@ -117,7 +117,7 @@ static int crypto_gcm_setkey(struct cryp
 	struct crypto_ablkcipher *ctr = ctx->ctr;
 	struct {
 		be128 hash;
-		u8 iv[8];
+		u8 iv[16];
 
 		struct crypto_gcm_setkey_result result;
 
@@ -152,10 +152,8 @@ static int crypto_gcm_setkey(struct cryp
 
 	err = crypto_ablkcipher_encrypt(&data->req);
 	if (err == -EINPROGRESS || err == -EBUSY) {
-		err = wait_for_completion_interruptible(
-			&data->result.completion);
-		if (!err)
-			err = data->result.err;
+		wait_for_completion(&data->result.completion);
+		err = data->result.err;
 	}
 
 	if (err)
@@ -639,7 +637,9 @@ static int crypto_gcm_create_common(stru
 
 	ghash_alg = crypto_find_alg(ghash_name, &crypto_ahash_type,
 				    CRYPTO_ALG_TYPE_HASH,
-				    CRYPTO_ALG_TYPE_AHASH_MASK);
+				    CRYPTO_ALG_TYPE_AHASH_MASK |
+				    crypto_requires_sync(algt->type,
+							 algt->mask));
 	if (IS_ERR(ghash_alg))
 		return PTR_ERR(ghash_alg);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/crypto/ghash-generic.c linux-libre-4.4.107-gnu/crypto/ghash-generic.c
--- linux-libre-4.4-gnu/crypto/ghash-generic.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/crypto/ghash-generic.c	2017-12-20 04:05:01.000000000 -0500
@@ -14,24 +14,13 @@
 
 #include <crypto/algapi.h>
 #include <crypto/gf128mul.h>
+#include <crypto/ghash.h>
 #include <crypto/internal/hash.h>
 #include <linux/crypto.h>
 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
 
-#define GHASH_BLOCK_SIZE	16
-#define GHASH_DIGEST_SIZE	16
-
-struct ghash_ctx {
-	struct gf128mul_4k *gf128;
-};
-
-struct ghash_desc_ctx {
-	u8 buffer[GHASH_BLOCK_SIZE];
-	u32 bytes;
-};
-
 static int ghash_init(struct shash_desc *desc)
 {
 	struct ghash_desc_ctx *dctx = shash_desc_ctx(desc);
diff -druNp --no-dereference linux-libre-4.4-gnu/crypto/hmac.c linux-libre-4.4.107-gnu/crypto/hmac.c
--- linux-libre-4.4-gnu/crypto/hmac.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/crypto/hmac.c	2017-12-20 04:05:01.000000000 -0500
@@ -194,11 +194,15 @@ static int hmac_create(struct crypto_tem
 	salg = shash_attr_alg(tb[1], 0, 0);
 	if (IS_ERR(salg))
 		return PTR_ERR(salg);
+	alg = &salg->base;
 
+	/* The underlying hash algorithm must be unkeyed */
 	err = -EINVAL;
+	if (crypto_shash_alg_has_setkey(salg))
+		goto out_put_alg;
+
 	ds = salg->digestsize;
 	ss = salg->statesize;
-	alg = &salg->base;
 	if (ds > alg->cra_blocksize ||
 	    ss < alg->cra_blocksize)
 		goto out_put_alg;
diff -druNp --no-dereference linux-libre-4.4-gnu/crypto/keywrap.c linux-libre-4.4.107-gnu/crypto/keywrap.c
--- linux-libre-4.4-gnu/crypto/keywrap.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/crypto/keywrap.c	2017-12-20 04:05:01.000000000 -0500
@@ -212,7 +212,7 @@ static int crypto_kw_decrypt(struct blkc
 			  SEMIBSIZE))
 		ret = -EBADMSG;
 
-	memzero_explicit(&block, sizeof(struct crypto_kw_block));
+	memzero_explicit(block, sizeof(struct crypto_kw_block));
 
 	return ret;
 }
@@ -297,7 +297,7 @@ static int crypto_kw_encrypt(struct blkc
 	/* establish the IV for the caller to pick up */
 	memcpy(desc->info, block->A, SEMIBSIZE);
 
-	memzero_explicit(&block, sizeof(struct crypto_kw_block));
+	memzero_explicit(block, sizeof(struct crypto_kw_block));
 
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/crypto/Makefile linux-libre-4.4.107-gnu/crypto/Makefile
--- linux-libre-4.4-gnu/crypto/Makefile	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/crypto/Makefile	2017-12-20 04:05:01.000000000 -0500
@@ -33,6 +33,7 @@ obj-$(CONFIG_CRYPTO_AKCIPHER2) += akciph
 
 $(obj)/rsapubkey-asn1.o: $(obj)/rsapubkey-asn1.c $(obj)/rsapubkey-asn1.h
 $(obj)/rsaprivkey-asn1.o: $(obj)/rsaprivkey-asn1.c $(obj)/rsaprivkey-asn1.h
+$(obj)/rsa_helper.o: $(obj)/rsapubkey-asn1.h $(obj)/rsaprivkey-asn1.h
 clean-files += rsapubkey-asn1.c rsapubkey-asn1.h
 clean-files += rsaprivkey-asn1.c rsaprivkey-asn1.h
 
@@ -61,6 +62,7 @@ obj-$(CONFIG_CRYPTO_SHA1) += sha1_generi
 obj-$(CONFIG_CRYPTO_SHA256) += sha256_generic.o
 obj-$(CONFIG_CRYPTO_SHA512) += sha512_generic.o
 obj-$(CONFIG_CRYPTO_WP512) += wp512.o
+CFLAGS_wp512.o := $(call cc-option,-fno-schedule-insns)  # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79149
 obj-$(CONFIG_CRYPTO_TGR192) += tgr192.o
 obj-$(CONFIG_CRYPTO_GF128MUL) += gf128mul.o
 obj-$(CONFIG_CRYPTO_ECB) += ecb.o
@@ -84,6 +86,7 @@ obj-$(CONFIG_CRYPTO_BLOWFISH_COMMON) +=
 obj-$(CONFIG_CRYPTO_TWOFISH) += twofish_generic.o
 obj-$(CONFIG_CRYPTO_TWOFISH_COMMON) += twofish_common.o
 obj-$(CONFIG_CRYPTO_SERPENT) += serpent_generic.o
+CFLAGS_serpent_generic.o := $(call cc-option,-fsched-pressure)  # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79149
 obj-$(CONFIG_CRYPTO_AES) += aes_generic.o
 obj-$(CONFIG_CRYPTO_CAMELLIA) += camellia_generic.o
 obj-$(CONFIG_CRYPTO_CAST_COMMON) += cast_common.o
diff -druNp --no-dereference linux-libre-4.4-gnu/crypto/mcryptd.c linux-libre-4.4.107-gnu/crypto/mcryptd.c
--- linux-libre-4.4-gnu/crypto/mcryptd.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/crypto/mcryptd.c	2017-12-20 04:05:01.000000000 -0500
@@ -258,18 +258,22 @@ out_free_inst:
 	goto out;
 }
 
-static inline void mcryptd_check_internal(struct rtattr **tb, u32 *type,
+static inline bool mcryptd_check_internal(struct rtattr **tb, u32 *type,
 					  u32 *mask)
 {
 	struct crypto_attr_type *algt;
 
 	algt = crypto_get_attr_type(tb);
 	if (IS_ERR(algt))
-		return;
-	if ((algt->type & CRYPTO_ALG_INTERNAL))
-		*type |= CRYPTO_ALG_INTERNAL;
-	if ((algt->mask & CRYPTO_ALG_INTERNAL))
-		*mask |= CRYPTO_ALG_INTERNAL;
+		return false;
+
+	*type |= algt->type & CRYPTO_ALG_INTERNAL;
+	*mask |= algt->mask & CRYPTO_ALG_INTERNAL;
+
+	if (*type & *mask & CRYPTO_ALG_INTERNAL)
+		return true;
+	else
+		return false;
 }
 
 static int mcryptd_hash_init_tfm(struct crypto_tfm *tfm)
@@ -498,7 +502,8 @@ static int mcryptd_create_hash(struct cr
 	u32 mask = 0;
 	int err;
 
-	mcryptd_check_internal(tb, &type, &mask);
+	if (!mcryptd_check_internal(tb, &type, &mask))
+		return -EINVAL;
 
 	salg = shash_attr_alg(tb[1], type, mask);
 	if (IS_ERR(salg))
@@ -526,6 +531,7 @@ static int mcryptd_create_hash(struct cr
 	inst->alg.halg.base.cra_flags = type;
 
 	inst->alg.halg.digestsize = salg->digestsize;
+	inst->alg.halg.statesize = salg->statesize;
 	inst->alg.halg.base.cra_ctxsize = sizeof(struct mcryptd_hash_ctx);
 
 	inst->alg.halg.base.cra_init = mcryptd_hash_init_tfm;
diff -druNp --no-dereference linux-libre-4.4-gnu/crypto/salsa20_generic.c linux-libre-4.4.107-gnu/crypto/salsa20_generic.c
--- linux-libre-4.4-gnu/crypto/salsa20_generic.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/crypto/salsa20_generic.c	2017-12-20 04:05:01.000000000 -0500
@@ -188,13 +188,6 @@ static int encrypt(struct blkcipher_desc
 
 	salsa20_ivsetup(ctx, walk.iv);
 
-	if (likely(walk.nbytes == nbytes))
-	{
-		salsa20_encrypt_bytes(ctx, walk.dst.virt.addr,
-				      walk.src.virt.addr, nbytes);
-		return blkcipher_walk_done(desc, &walk, 0);
-	}
-
 	while (walk.nbytes >= 64) {
 		salsa20_encrypt_bytes(ctx, walk.dst.virt.addr,
 				      walk.src.virt.addr,
diff -druNp --no-dereference linux-libre-4.4-gnu/crypto/scatterwalk.c linux-libre-4.4.107-gnu/crypto/scatterwalk.c
--- linux-libre-4.4-gnu/crypto/scatterwalk.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/crypto/scatterwalk.c	2017-12-20 04:05:01.000000000 -0500
@@ -72,7 +72,8 @@ static void scatterwalk_pagedone(struct
 
 void scatterwalk_done(struct scatter_walk *walk, int out, int more)
 {
-	if (!(scatterwalk_pagelen(walk) & (PAGE_SIZE - 1)) || !more)
+	if (!more || walk->offset >= walk->sg->offset + walk->sg->length ||
+	    !(walk->offset & (PAGE_SIZE - 1)))
 		scatterwalk_pagedone(walk, out, more);
 }
 EXPORT_SYMBOL_GPL(scatterwalk_done);
diff -druNp --no-dereference linux-libre-4.4-gnu/crypto/shash.c linux-libre-4.4.107-gnu/crypto/shash.c
--- linux-libre-4.4-gnu/crypto/shash.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/crypto/shash.c	2017-12-20 04:05:01.000000000 -0500
@@ -24,11 +24,12 @@
 
 static const struct crypto_type crypto_shash_type;
 
-static int shash_no_setkey(struct crypto_shash *tfm, const u8 *key,
-			   unsigned int keylen)
+int shash_no_setkey(struct crypto_shash *tfm, const u8 *key,
+		    unsigned int keylen)
 {
 	return -ENOSYS;
 }
+EXPORT_SYMBOL_GPL(shash_no_setkey);
 
 static int shash_setkey_unaligned(struct crypto_shash *tfm, const u8 *key,
 				  unsigned int keylen)
@@ -274,12 +275,14 @@ static int shash_async_finup(struct ahas
 
 int shash_ahash_digest(struct ahash_request *req, struct shash_desc *desc)
 {
-	struct scatterlist *sg = req->src;
-	unsigned int offset = sg->offset;
 	unsigned int nbytes = req->nbytes;
+	struct scatterlist *sg;
+	unsigned int offset;
 	int err;
 
-	if (nbytes < min(sg->length, ((unsigned int)(PAGE_SIZE)) - offset)) {
+	if (nbytes &&
+	    (sg = req->src, offset = sg->offset,
+	     nbytes < min(sg->length, ((unsigned int)(PAGE_SIZE)) - offset))) {
 		void *data;
 
 		data = kmap_atomic(sg_page(sg));
@@ -354,9 +357,10 @@ int crypto_init_shash_ops_async(struct c
 	crt->final = shash_async_final;
 	crt->finup = shash_async_finup;
 	crt->digest = shash_async_digest;
+	crt->setkey = shash_async_setkey;
+
+	crt->has_setkey = alg->setkey != shash_no_setkey;
 
-	if (alg->setkey)
-		crt->setkey = shash_async_setkey;
 	if (alg->export)
 		crt->export = shash_async_export;
 	if (alg->import)
diff -druNp --no-dereference linux-libre-4.4-gnu/crypto/skcipher.c linux-libre-4.4.107-gnu/crypto/skcipher.c
--- linux-libre-4.4-gnu/crypto/skcipher.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/crypto/skcipher.c	2017-12-20 04:05:01.000000000 -0500
@@ -118,6 +118,7 @@ static int crypto_init_skcipher_ops_blkc
 	skcipher->decrypt = skcipher_decrypt_blkcipher;
 
 	skcipher->ivsize = crypto_blkcipher_ivsize(blkcipher);
+	skcipher->has_setkey = calg->cra_blkcipher.max_keysize;
 
 	return 0;
 }
@@ -210,6 +211,7 @@ static int crypto_init_skcipher_ops_ablk
 	skcipher->ivsize = crypto_ablkcipher_ivsize(ablkcipher);
 	skcipher->reqsize = crypto_ablkcipher_reqsize(ablkcipher) +
 			    sizeof(struct ablkcipher_request);
+	skcipher->has_setkey = calg->cra_ablkcipher.max_keysize;
 
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/crypto/tcrypt.c linux-libre-4.4.107-gnu/crypto/tcrypt.c
--- linux-libre-4.4-gnu/crypto/tcrypt.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/crypto/tcrypt.c	2017-12-20 04:05:01.000000000 -0500
@@ -410,7 +410,7 @@ static void test_aead_speed(const char *
 			}
 
 			sg_init_aead(sg, xbuf,
-				    *b_size + (enc ? authsize : 0));
+				    *b_size + (enc ? 0 : authsize));
 
 			sg_init_aead(sgout, xoutbuf,
 				    *b_size + (enc ? authsize : 0));
@@ -418,7 +418,9 @@ static void test_aead_speed(const char *
 			sg_set_buf(&sg[0], assoc, aad_size);
 			sg_set_buf(&sgout[0], assoc, aad_size);
 
-			aead_request_set_crypt(req, sg, sgout, *b_size, iv);
+			aead_request_set_crypt(req, sg, sgout,
+					       *b_size + (enc ? 0 : authsize),
+					       iv);
 			aead_request_set_ad(req, aad_size);
 
 			if (secs)
diff -druNp --no-dereference linux-libre-4.4-gnu/crypto/testmgr.c linux-libre-4.4.107-gnu/crypto/testmgr.c
--- linux-libre-4.4-gnu/crypto/testmgr.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/crypto/testmgr.c	2017-12-20 04:05:01.000000000 -0500
@@ -488,6 +488,8 @@ static int __test_aead(struct crypto_aea
 	aead_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
 				  tcrypt_complete, &result);
 
+	iv_len = crypto_aead_ivsize(tfm);
+
 	for (i = 0, j = 0; i < tcount; i++) {
 		if (template[i].np)
 			continue;
@@ -508,7 +510,6 @@ static int __test_aead(struct crypto_aea
 
 		memcpy(input, template[i].input, template[i].ilen);
 		memcpy(assoc, template[i].assoc, template[i].alen);
-		iv_len = crypto_aead_ivsize(tfm);
 		if (template[i].iv)
 			memcpy(iv, template[i].iv, iv_len);
 		else
@@ -617,7 +618,7 @@ static int __test_aead(struct crypto_aea
 		j++;
 
 		if (template[i].iv)
-			memcpy(iv, template[i].iv, MAX_IVLEN);
+			memcpy(iv, template[i].iv, iv_len);
 		else
 			memset(iv, 0, MAX_IVLEN);
 
@@ -1849,6 +1850,7 @@ static int alg_test_drbg(const struct al
 static int do_test_rsa(struct crypto_akcipher *tfm,
 		       struct akcipher_testvec *vecs)
 {
+	char *xbuf[XBUFSIZE];
 	struct akcipher_request *req;
 	void *outbuf_enc = NULL;
 	void *outbuf_dec = NULL;
@@ -1857,9 +1859,12 @@ static int do_test_rsa(struct crypto_akc
 	int err = -ENOMEM;
 	struct scatterlist src, dst, src_tab[2];
 
+	if (testmgr_alloc_buf(xbuf))
+		return err;
+
 	req = akcipher_request_alloc(tfm, GFP_KERNEL);
 	if (!req)
-		return err;
+		goto free_xbuf;
 
 	init_completion(&result.completion);
 
@@ -1877,9 +1882,14 @@ static int do_test_rsa(struct crypto_akc
 	if (!outbuf_enc)
 		goto free_req;
 
+	if (WARN_ON(vecs->m_size > PAGE_SIZE))
+		goto free_all;
+
+	memcpy(xbuf[0], vecs->m, vecs->m_size);
+
 	sg_init_table(src_tab, 2);
-	sg_set_buf(&src_tab[0], vecs->m, 8);
-	sg_set_buf(&src_tab[1], vecs->m + 8, vecs->m_size - 8);
+	sg_set_buf(&src_tab[0], xbuf[0], 8);
+	sg_set_buf(&src_tab[1], xbuf[0] + 8, vecs->m_size - 8);
 	sg_init_one(&dst, outbuf_enc, out_len_max);
 	akcipher_request_set_crypt(req, src_tab, &dst, vecs->m_size,
 				   out_len_max);
@@ -1898,7 +1908,7 @@ static int do_test_rsa(struct crypto_akc
 		goto free_all;
 	}
 	/* verify that encrypted message is equal to expected */
-	if (memcmp(vecs->c, sg_virt(req->dst), vecs->c_size)) {
+	if (memcmp(vecs->c, outbuf_enc, vecs->c_size)) {
 		pr_err("alg: rsa: encrypt test failed. Invalid output\n");
 		err = -EINVAL;
 		goto free_all;
@@ -1913,7 +1923,13 @@ static int do_test_rsa(struct crypto_akc
 		err = -ENOMEM;
 		goto free_all;
 	}
-	sg_init_one(&src, vecs->c, vecs->c_size);
+
+	if (WARN_ON(vecs->c_size > PAGE_SIZE))
+		goto free_all;
+
+	memcpy(xbuf[0], vecs->c, vecs->c_size);
+
+	sg_init_one(&src, xbuf[0], vecs->c_size);
 	sg_init_one(&dst, outbuf_dec, out_len_max);
 	init_completion(&result.completion);
 	akcipher_request_set_crypt(req, &src, &dst, vecs->c_size, out_len_max);
@@ -1940,6 +1956,8 @@ free_all:
 	kfree(outbuf_enc);
 free_req:
 	akcipher_request_free(req);
+free_xbuf:
+	testmgr_free_buf(xbuf);
 	return err;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/crypto/testmgr.h linux-libre-4.4.107-gnu/crypto/testmgr.h
--- linux-libre-4.4-gnu/crypto/testmgr.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/crypto/testmgr.h	2017-12-20 04:05:01.000000000 -0500
@@ -21778,7 +21778,7 @@ static struct aead_testvec aes_ccm_enc_t
 			  "\x09\x75\x9a\x9b\x3c\x9b\x27\x39",
 		.klen	= 32,
 		.iv	= "\x03\xf9\xd9\x4e\x63\xb5\x3d\x9d"
-			  "\x43\xf6\x1e\x50",
+			  "\x43\xf6\x1e\x50\0\0\0\0",
 		.assoc	= "\x57\xf5\x6b\x8b\x57\x5c\x3d\x3b"
 			  "\x13\x02\x01\x0c\x83\x4c\x96\x35"
 			  "\x8e\xd6\x39\xcf\x7d\x14\x9b\x94"
diff -druNp --no-dereference linux-libre-4.4-gnu/Documentation/ABI/testing/sysfs-bus-iio-proximity-as3935 linux-libre-4.4.107-gnu/Documentation/ABI/testing/sysfs-bus-iio-proximity-as3935
--- linux-libre-4.4-gnu/Documentation/ABI/testing/sysfs-bus-iio-proximity-as3935	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/Documentation/ABI/testing/sysfs-bus-iio-proximity-as3935	2017-12-20 04:05:01.000000000 -0500
@@ -1,4 +1,4 @@
-What		/sys/bus/iio/devices/iio:deviceX/in_proximity_raw
+What		/sys/bus/iio/devices/iio:deviceX/in_proximity_input
 Date:		March 2014
 KernelVersion:	3.15
 Contact:	Matt Ranostay <mranostay@gmail.com>
diff -druNp --no-dereference linux-libre-4.4-gnu/Documentation/ABI/testing/sysfs-bus-usb linux-libre-4.4.107-gnu/Documentation/ABI/testing/sysfs-bus-usb
--- linux-libre-4.4-gnu/Documentation/ABI/testing/sysfs-bus-usb	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/Documentation/ABI/testing/sysfs-bus-usb	2017-12-20 04:05:01.000000000 -0500
@@ -134,19 +134,21 @@ Description:
 		enabled for the device. Developer can write y/Y/1 or n/N/0 to
 		the file to enable/disable the feature.
 
-What:		/sys/bus/usb/devices/.../power/usb3_hardware_lpm
-Date:		June 2015
+What:		/sys/bus/usb/devices/.../power/usb3_hardware_lpm_u1
+		/sys/bus/usb/devices/.../power/usb3_hardware_lpm_u2
+Date:		November 2015
 Contact:	Kevin Strasser <kevin.strasser@linux.intel.com>
+		Lu Baolu <baolu.lu@linux.intel.com>
 Description:
 		If CONFIG_PM is set and a USB 3.0 lpm-capable device is plugged
 		in to a xHCI host which supports link PM, it will check if U1
 		and U2 exit latencies have been set in the BOS descriptor; if
-		the check is is passed and the host supports USB3 hardware LPM,
+		the check is passed and the host supports USB3 hardware LPM,
 		USB3 hardware LPM will be enabled for the device and the USB
-		device directory will contain a file named
-		power/usb3_hardware_lpm. The file holds a string value (enable
-		or disable) indicating whether or not USB3 hardware LPM is
-		enabled for the device.
+		device directory will contain two files named
+		power/usb3_hardware_lpm_u1 and power/usb3_hardware_lpm_u2. These
+		files hold a string value (enable or disable) indicating whether
+		or not USB3 hardware LPM U1 or U2 is enabled for the device.
 
 What:		/sys/bus/usb/devices/.../removable
 Date:		February 2012
diff -druNp --no-dereference linux-libre-4.4-gnu/Documentation/arm64/tagged-pointers.txt linux-libre-4.4.107-gnu/Documentation/arm64/tagged-pointers.txt
--- linux-libre-4.4-gnu/Documentation/arm64/tagged-pointers.txt	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/Documentation/arm64/tagged-pointers.txt	2017-12-20 04:05:01.000000000 -0500
@@ -11,24 +11,56 @@ in AArch64 Linux.
 The kernel configures the translation tables so that translations made
 via TTBR0 (i.e. userspace mappings) have the top byte (bits 63:56) of
 the virtual address ignored by the translation hardware. This frees up
-this byte for application use, with the following caveats:
+this byte for application use.
 
-	(1) The kernel requires that all user addresses passed to EL1
-	    are tagged with tag 0x00. This means that any syscall
-	    parameters containing user virtual addresses *must* have
-	    their top byte cleared before trapping to the kernel.
 
-	(2) Non-zero tags are not preserved when delivering signals.
-	    This means that signal handlers in applications making use
-	    of tags cannot rely on the tag information for user virtual
-	    addresses being maintained for fields inside siginfo_t.
-	    One exception to this rule is for signals raised in response
-	    to watchpoint debug exceptions, where the tag information
-	    will be preserved.
+Passing tagged addresses to the kernel
+--------------------------------------
 
-	(3) Special care should be taken when using tagged pointers,
-	    since it is likely that C compilers will not hazard two
-	    virtual addresses differing only in the upper byte.
+All interpretation of userspace memory addresses by the kernel assumes
+an address tag of 0x00.
+
+This includes, but is not limited to, addresses found in:
+
+ - pointer arguments to system calls, including pointers in structures
+   passed to system calls,
+
+ - the stack pointer (sp), e.g. when interpreting it to deliver a
+   signal,
+
+ - the frame pointer (x29) and frame records, e.g. when interpreting
+   them to generate a backtrace or call graph.
+
+Using non-zero address tags in any of these locations may result in an
+error code being returned, a (fatal) signal being raised, or other modes
+of failure.
+
+For these reasons, passing non-zero address tags to the kernel via
+system calls is forbidden, and using a non-zero address tag for sp is
+strongly discouraged.
+
+Programs maintaining a frame pointer and frame records that use non-zero
+address tags may suffer impaired or inaccurate debug and profiling
+visibility.
+
+
+Preserving tags
+---------------
+
+Non-zero tags are not preserved when delivering signals. This means that
+signal handlers in applications making use of tags cannot rely on the
+tag information for user virtual addresses being maintained for fields
+inside siginfo_t. One exception to this rule is for signals raised in
+response to watchpoint debug exceptions, where the tag information will
+be preserved.
 
 The architecture prevents the use of a tagged PC, so the upper byte will
 be set to a sign-extension of bit 55 on exception return.
+
+
+Other considerations
+--------------------
+
+Special care should be taken when using tagged pointers, since it is
+likely that C compilers will not hazard two virtual addresses differing
+only in the upper byte.
diff -druNp --no-dereference linux-libre-4.4-gnu/Documentation/devicetree/bindings/arm/omap/omap.txt linux-libre-4.4.107-gnu/Documentation/devicetree/bindings/arm/omap/omap.txt
--- linux-libre-4.4-gnu/Documentation/devicetree/bindings/arm/omap/omap.txt	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/Documentation/devicetree/bindings/arm/omap/omap.txt	2017-12-20 04:05:01.000000000 -0500
@@ -23,6 +23,7 @@ Optional properties:
   during suspend.
 - ti,no-reset-on-init: When present, the module should not be reset at init
 - ti,no-idle-on-init: When present, the module should not be idled at init
+- ti,no-idle: When present, the module is never allowed to idle.
 
 Example:
 
diff -druNp --no-dereference linux-libre-4.4-gnu/Documentation/devicetree/bindings/ata/ahci-platform.txt linux-libre-4.4.107-gnu/Documentation/devicetree/bindings/ata/ahci-platform.txt
--- linux-libre-4.4-gnu/Documentation/devicetree/bindings/ata/ahci-platform.txt	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/Documentation/devicetree/bindings/ata/ahci-platform.txt	2017-12-20 04:05:01.000000000 -0500
@@ -30,6 +30,10 @@ Optional properties:
 - target-supply     : regulator for SATA target power
 - phys              : reference to the SATA PHY node
 - phy-names         : must be "sata-phy"
+- ports-implemented : Mask that indicates which ports that the HBA supports
+		      are available for software to use. Useful if PORTS_IMPL
+		      is not programmed by the BIOS, which is true with
+		      some embedded SOC's.
 
 Required properties when using sub-nodes:
 - #address-cells    : number of cells to encode an address
diff -druNp --no-dereference linux-libre-4.4-gnu/Documentation/devicetree/bindings/clock/imx31-clock.txt linux-libre-4.4.107-gnu/Documentation/devicetree/bindings/clock/imx31-clock.txt
--- linux-libre-4.4-gnu/Documentation/devicetree/bindings/clock/imx31-clock.txt	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/Documentation/devicetree/bindings/clock/imx31-clock.txt	2017-12-20 04:05:01.000000000 -0500
@@ -77,7 +77,7 @@ Examples:
 clks: ccm@53f80000{
 	compatible = "fsl,imx31-ccm";
 	reg = <0x53f80000 0x4000>;
-	interrupts = <0 31 0x04 0 53 0x04>;
+	interrupts = <31>, <53>;
 	#clock-cells = <1>;
 };
 
diff -druNp --no-dereference linux-libre-4.4-gnu/Documentation/devicetree/bindings/clock/imx35-clock.txt linux-libre-4.4.107-gnu/Documentation/devicetree/bindings/clock/imx35-clock.txt
--- linux-libre-4.4-gnu/Documentation/devicetree/bindings/clock/imx35-clock.txt	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/Documentation/devicetree/bindings/clock/imx35-clock.txt	2017-12-20 04:05:01.000000000 -0500
@@ -94,6 +94,7 @@ clocks and IDs.
 	csi_sel			79
 	iim_gate		80
 	gpu2d_gate		81
+	ckli_gate		82
 
 Examples:
 
diff -druNp --no-dereference linux-libre-4.4-gnu/Documentation/devicetree/bindings/clock/sunxi.txt linux-libre-4.4.107-gnu/Documentation/devicetree/bindings/clock/sunxi.txt
--- linux-libre-4.4-gnu/Documentation/devicetree/bindings/clock/sunxi.txt	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/Documentation/devicetree/bindings/clock/sunxi.txt	2017-12-20 04:05:01.000000000 -0500
@@ -18,6 +18,7 @@ Required properties:
 	"allwinner,sun4i-a10-cpu-clk" - for the CPU multiplexer clock
 	"allwinner,sun4i-a10-axi-clk" - for the AXI clock
 	"allwinner,sun8i-a23-axi-clk" - for the AXI clock on A23
+	"allwinner,sun4i-a10-gates-clk" - for generic gates on all compatible SoCs
 	"allwinner,sun4i-a10-axi-gates-clk" - for the AXI gates
 	"allwinner,sun4i-a10-ahb-clk" - for the AHB clock
 	"allwinner,sun5i-a13-ahb-clk" - for the AHB clock on A13
@@ -43,6 +44,7 @@ Required properties:
 	"allwinner,sun6i-a31-apb0-gates-clk" - for the APB0 gates on A31
 	"allwinner,sun7i-a20-apb0-gates-clk" - for the APB0 gates on A20
 	"allwinner,sun8i-a23-apb0-gates-clk" - for the APB0 gates on A23
+	"allwinner,sun8i-h3-apb0-gates-clk" - for the APB0 gates on H3
 	"allwinner,sun9i-a80-apb0-gates-clk" - for the APB0 gates on A80
 	"allwinner,sun4i-a10-apb1-clk" - for the APB1 clock
 	"allwinner,sun9i-a80-apb1-clk" - for the APB1 bus clock on A80
diff -druNp --no-dereference linux-libre-4.4-gnu/Documentation/devicetree/bindings/iio/adc/avia-hx711.txt linux-libre-4.4.107-gnu/Documentation/devicetree/bindings/iio/adc/avia-hx711.txt
--- linux-libre-4.4-gnu/Documentation/devicetree/bindings/iio/adc/avia-hx711.txt	1969-12-31 19:00:00.000000000 -0500
+++ linux-libre-4.4.107-gnu/Documentation/devicetree/bindings/iio/adc/avia-hx711.txt	2017-12-20 04:05:01.000000000 -0500
@@ -0,0 +1,18 @@
+* AVIA HX711 ADC chip for weight cells
+  Bit-banging driver
+
+Required properties:
+ - compatible:	Should be "avia,hx711"
+ - sck-gpios:	Definition of the GPIO for the clock
+ - dout-gpios:	Definition of the GPIO for data-out
+		See Documentation/devicetree/bindings/gpio/gpio.txt
+ - avdd-supply:	Definition of the regulator used as analog supply
+
+Example:
+weight@0 {
+	compatible = "avia,hx711";
+	sck-gpios = <&gpio3 10 GPIO_ACTIVE_HIGH>;
+	dout-gpios = <&gpio0 7 GPIO_ACTIVE_HIGH>;
+	avdd-suppy = <&avdd>;
+};
+
diff -druNp --no-dereference linux-libre-4.4-gnu/Documentation/devicetree/bindings/iio/adc/rockchip-saradc.txt linux-libre-4.4.107-gnu/Documentation/devicetree/bindings/iio/adc/rockchip-saradc.txt
--- linux-libre-4.4-gnu/Documentation/devicetree/bindings/iio/adc/rockchip-saradc.txt	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/Documentation/devicetree/bindings/iio/adc/rockchip-saradc.txt	2017-12-20 04:05:01.000000000 -0500
@@ -12,6 +12,11 @@ Required properties:
 - vref-supply: The regulator supply ADC reference voltage.
 - #io-channel-cells: Should be 1, see ../iio-bindings.txt
 
+Optional properties:
+- resets: Must contain an entry for each entry in reset-names if need support
+	  this option. See ../reset/reset.txt for details.
+- reset-names: Must include the name "saradc-apb".
+
 Example:
 	saradc: saradc@2006c000 {
 		compatible = "rockchip,saradc";
@@ -19,6 +24,8 @@ Example:
 		interrupts = <GIC_SPI 26 IRQ_TYPE_LEVEL_HIGH>;
 		clocks = <&cru SCLK_SARADC>, <&cru PCLK_SARADC>;
 		clock-names = "saradc", "apb_pclk";
+		resets = <&cru SRST_SARADC>;
+		reset-names = "saradc-apb";
 		#io-channel-cells = <1>;
 		vref-supply = <&vcc18>;
 	};
diff -druNp --no-dereference linux-libre-4.4-gnu/Documentation/devicetree/bindings/pinctrl/img,pistachio-pinctrl.txt linux-libre-4.4.107-gnu/Documentation/devicetree/bindings/pinctrl/img,pistachio-pinctrl.txt
--- linux-libre-4.4-gnu/Documentation/devicetree/bindings/pinctrl/img,pistachio-pinctrl.txt	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/Documentation/devicetree/bindings/pinctrl/img,pistachio-pinctrl.txt	2017-12-20 04:05:01.000000000 -0500
@@ -134,12 +134,12 @@ mfio80		ddr_debug, mips_trace_data, mips
 mfio81		dreq0, mips_trace_data, eth_debug
 mfio82		dreq1, mips_trace_data, eth_debug
 mfio83		mips_pll_lock, mips_trace_data, usb_debug
-mfio84		sys_pll_lock, mips_trace_data, usb_debug
-mfio85		wifi_pll_lock, mips_trace_data, sdhost_debug
-mfio86		bt_pll_lock, mips_trace_data, sdhost_debug
-mfio87		rpu_v_pll_lock, dreq2, socif_debug
-mfio88		rpu_l_pll_lock, dreq3, socif_debug
-mfio89		audio_pll_lock, dreq4, dreq5
+mfio84		audio_pll_lock, mips_trace_data, usb_debug
+mfio85		rpu_v_pll_lock, mips_trace_data, sdhost_debug
+mfio86		rpu_l_pll_lock, mips_trace_data, sdhost_debug
+mfio87		sys_pll_lock, dreq2, socif_debug
+mfio88		wifi_pll_lock, dreq3, socif_debug
+mfio89		bt_pll_lock, dreq4, dreq5
 tck
 trstn
 tdi
diff -druNp --no-dereference linux-libre-4.4-gnu/Documentation/devicetree/bindings/regulator/qcom,spmi-regulator.txt linux-libre-4.4.107-gnu/Documentation/devicetree/bindings/regulator/qcom,spmi-regulator.txt
--- linux-libre-4.4-gnu/Documentation/devicetree/bindings/regulator/qcom,spmi-regulator.txt	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/Documentation/devicetree/bindings/regulator/qcom,spmi-regulator.txt	2017-12-20 04:05:01.000000000 -0500
@@ -81,9 +81,9 @@ pm8916:
 	l14, l15, l16, l17, l18
 
 pm8941:
-	s1, s2, s3, l1, l2, l3, l4, l5, l6, l7, l8, l9, l10, l11, l12, l13, l14,
-	l15, l16, l17, l18, l19, l20, l21, l22, l23, l24, lvs1, lvs2, lvs3,
-	mvs1, mvs2
+	s1, s2, s3, s4, l1, l2, l3, l4, l5, l6, l7, l8, l9, l10, l11, l12, l13,
+	l14, l15, l16, l17, l18, l19, l20, l21, l22, l23, l24, lvs1, lvs2, lvs3,
+	5vs1, 5vs2
 
 The content of each sub-node is defined by the standard binding for regulators -
 see regulator.txt - with additional custom properties described below:
diff -druNp --no-dereference linux-libre-4.4-gnu/Documentation/devicetree/bindings/vendor-prefixes.txt linux-libre-4.4.107-gnu/Documentation/devicetree/bindings/vendor-prefixes.txt
--- linux-libre-4.4-gnu/Documentation/devicetree/bindings/vendor-prefixes.txt	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/Documentation/devicetree/bindings/vendor-prefixes.txt	2017-12-20 04:05:01.000000000 -0500
@@ -31,6 +31,7 @@ asahi-kasei	Asahi Kasei Corp.
 atmel	Atmel Corporation
 auo	AU Optronics Corporation
 avago	Avago Technologies
+avia	avia semiconductor
 avic	Shanghai AVIC Optoelectronics Co., Ltd.
 axis	Axis Communications AB
 bosch	Bosch Sensortec GmbH
diff -druNp --no-dereference linux-libre-4.4-gnu/Documentation/filesystems/efivarfs.txt linux-libre-4.4.107-gnu/Documentation/filesystems/efivarfs.txt
--- linux-libre-4.4-gnu/Documentation/filesystems/efivarfs.txt	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/Documentation/filesystems/efivarfs.txt	2017-12-20 04:05:01.000000000 -0500
@@ -14,3 +14,10 @@ filesystem.
 efivarfs is typically mounted like this,
 
 	mount -t efivarfs none /sys/firmware/efi/efivars
+
+Due to the presence of numerous firmware bugs where removing non-standard
+UEFI variables causes the system firmware to fail to POST, efivarfs
+files that are not well-known standardized variables are created
+as immutable files.  This doesn't prevent removal - "chattr -i" will work -
+but it does prevent this kind of failure from being accomplished
+accidentally.
diff -druNp --no-dereference linux-libre-4.4-gnu/Documentation/filesystems/proc.txt linux-libre-4.4.107-gnu/Documentation/filesystems/proc.txt
--- linux-libre-4.4-gnu/Documentation/filesystems/proc.txt	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/Documentation/filesystems/proc.txt	2017-12-20 04:05:01.000000000 -0500
@@ -346,7 +346,7 @@ address           perms offset  dev   in
 a7cb1000-a7cb2000 ---p 00000000 00:00 0
 a7cb2000-a7eb2000 rw-p 00000000 00:00 0
 a7eb2000-a7eb3000 ---p 00000000 00:00 0
-a7eb3000-a7ed5000 rw-p 00000000 00:00 0          [stack:1001]
+a7eb3000-a7ed5000 rw-p 00000000 00:00 0
 a7ed5000-a8008000 r-xp 00000000 03:00 4222       /lib/libc.so.6
 a8008000-a800a000 r--p 00133000 03:00 4222       /lib/libc.so.6
 a800a000-a800b000 rw-p 00135000 03:00 4222       /lib/libc.so.6
@@ -378,7 +378,6 @@ is not associated with a file:
 
  [heap]                   = the heap of the program
  [stack]                  = the stack of the main process
- [stack:1001]             = the stack of the thread with tid 1001
  [vdso]                   = the "virtual dynamic shared object",
                             the kernel system call handler
 
@@ -386,10 +385,8 @@ is not associated with a file:
 
 The /proc/PID/task/TID/maps is a view of the virtual memory from the viewpoint
 of the individual tasks of a process. In this file you will see a mapping marked
-as [stack] if that task sees it as a stack. This is a key difference from the
-content of /proc/PID/maps, where you will see all mappings that are being used
-as stack by all of those tasks. Hence, for the example above, the task-level
-map, i.e. /proc/PID/task/TID/maps for thread 1001 will look like this:
+as [stack] if that task sees it as a stack. Hence, for the example above, the
+task-level map, i.e. /proc/PID/task/TID/maps for thread 1001 will look like this:
 
 08048000-08049000 r-xp 00000000 03:00 8312       /opt/test
 08049000-0804a000 rw-p 00001000 03:00 8312       /opt/test
diff -druNp --no-dereference linux-libre-4.4-gnu/Documentation/kernel-parameters.txt linux-libre-4.4.107-gnu/Documentation/kernel-parameters.txt
--- linux-libre-4.4-gnu/Documentation/kernel-parameters.txt	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/Documentation/kernel-parameters.txt	2017-12-20 04:05:01.000000000 -0500
@@ -1255,6 +1255,10 @@ bytes respectively. Such letter suffixes
 			When zero, profiling data is discarded and associated
 			debugfs files are removed at module unload time.
 
+	goldfish	[X86] Enable the goldfish android emulator platform.
+			Don't use this when you are not running on the
+			android emulator
+
 	gpt		[EFI] Forces disk with valid GPT signature but
 			invalid Protective MBR to be treated as GPT. If the
 			primary GPT is corrupted, it enables the backup/alternate
@@ -1371,7 +1375,14 @@ bytes respectively. Such letter suffixes
 	i8042.nopnp	[HW] Don't use ACPIPnP / PnPBIOS to discover KBD/AUX
 			     controllers
 	i8042.notimeout	[HW] Ignore timeout condition signalled by controller
-	i8042.reset	[HW] Reset the controller during init and cleanup
+	i8042.reset	[HW] Reset the controller during init, cleanup and
+			     suspend-to-ram transitions, only during s2r
+			     transitions, or never reset
+			Format: { 1 | Y | y | 0 | N | n }
+			1, Y, y: always reset controller
+			0, N, n: don't ever reset controller
+			Default: only on s2r transitions on x86; most other
+			architectures force reset to be always executed
 	i8042.unlock	[HW] Unlock (ignore) the keylock
 	i8042.kbdreset  [HW] Reset device connected to KBD port
 
@@ -3569,6 +3580,13 @@ bytes respectively. Such letter suffixes
 	spia_pedr=
 	spia_peddr=
 
+	stack_guard_gap=	[MM]
+			override the default stack gap protection. The value
+			is in page units and it defines how many pages prior
+			to (for stacks growing down) resp. after (for stacks
+			growing up) the main stack are reserved for no other
+			mapping. Default value is 256 pages.
+
 	stacktrace	[FTRACE]
 			Enabled the stack tracer on boot up.
 
@@ -3928,6 +3946,8 @@ bytes respectively. Such letter suffixes
 					sector if the number is odd);
 				i = IGNORE_DEVICE (don't bind to this
 					device);
+				j = NO_REPORT_LUNS (don't use report luns
+					command, uas only);
 				l = NOT_LOCKABLE (don't try to lock and
 					unlock ejectable media);
 				m = MAX_SECTORS_64 (don't transfer more
diff -druNp --no-dereference linux-libre-4.4-gnu/Documentation/Makefile linux-libre-4.4.107-gnu/Documentation/Makefile
--- linux-libre-4.4-gnu/Documentation/Makefile	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/Documentation/Makefile	2017-12-20 04:05:01.000000000 -0500
@@ -1,4 +1,4 @@
 subdir-y := accounting auxdisplay blackfin connector \
-	filesystems filesystems ia64 laptops mic misc-devices \
+	filesystems filesystems ia64 laptops misc-devices \
 	networking pcmcia prctl ptp spi timers vDSO video4linux \
 	watchdog
diff -druNp --no-dereference linux-libre-4.4-gnu/Documentation/mic/Makefile linux-libre-4.4.107-gnu/Documentation/mic/Makefile
--- linux-libre-4.4-gnu/Documentation/mic/Makefile	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/Documentation/mic/Makefile	1969-12-31 19:00:00.000000000 -0500
@@ -1 +0,0 @@
-subdir-y := mpssd
diff -druNp --no-dereference linux-libre-4.4-gnu/Documentation/mic/mpssd/.gitignore linux-libre-4.4.107-gnu/Documentation/mic/mpssd/.gitignore
--- linux-libre-4.4-gnu/Documentation/mic/mpssd/.gitignore	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/Documentation/mic/mpssd/.gitignore	1969-12-31 19:00:00.000000000 -0500
@@ -1 +0,0 @@
-mpssd
diff -druNp --no-dereference linux-libre-4.4-gnu/Documentation/mic/mpssd/Makefile linux-libre-4.4.107-gnu/Documentation/mic/mpssd/Makefile
--- linux-libre-4.4-gnu/Documentation/mic/mpssd/Makefile	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/Documentation/mic/mpssd/Makefile	1969-12-31 19:00:00.000000000 -0500
@@ -1,21 +0,0 @@
-ifndef CROSS_COMPILE
-# List of programs to build
-hostprogs-$(CONFIG_X86_64) := mpssd
-
-mpssd-objs := mpssd.o sysfs.o
-
-# Tell kbuild to always build the programs
-always := $(hostprogs-y)
-
-HOSTCFLAGS += -I$(objtree)/usr/include -I$(srctree)/tools/include
-
-ifdef DEBUG
-HOSTCFLAGS += -DDEBUG=$(DEBUG)
-endif
-
-HOSTLOADLIBES_mpssd := -lpthread
-
-install:
-	install mpssd /usr/sbin/mpssd
-	install micctrl /usr/sbin/micctrl
-endif
diff -druNp --no-dereference linux-libre-4.4-gnu/Documentation/mic/mpssd/micctrl linux-libre-4.4.107-gnu/Documentation/mic/mpssd/micctrl
--- linux-libre-4.4-gnu/Documentation/mic/mpssd/micctrl	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/Documentation/mic/mpssd/micctrl	1969-12-31 19:00:00.000000000 -0500
@@ -1,173 +0,0 @@
-#!/bin/bash
-# Intel MIC Platform Software Stack (MPSS)
-#
-# Copyright(c) 2013 Intel Corporation.
-#
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License, version 2, as
-# published by the Free Software Foundation.
-#
-# This program is distributed in the hope that it will be useful, but
-# WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-# General Public License for more details.
-#
-# The full GNU General Public License is included in this distribution in
-# the file called "COPYING".
-#
-# Intel MIC User Space Tools.
-#
-# micctrl - Controls MIC boot/start/stop.
-#
-# chkconfig: 2345 95 05
-# description: start MPSS stack processing.
-#
-### BEGIN INIT INFO
-# Provides: micctrl
-### END INIT INFO
-
-# Source function library.
-. /etc/init.d/functions
-
-sysfs="/sys/class/mic"
-
-_status()
-{
-	f=$sysfs/$1
-	echo -e $1 state: "`cat $f/state`" shutdown_status: "`cat $f/shutdown_status`"
-}
-
-status()
-{
-	if [ "`echo $1 | head -c3`" == "mic" ]; then
-		_status $1
-		return $?
-	fi
-	for f in $sysfs/*
-	do
-		_status `basename $f`
-		RETVAL=$?
-		[ $RETVAL -ne 0 ] && return $RETVAL
-	done
-	return 0
-}
-
-_reset()
-{
-	f=$sysfs/$1
-	echo reset > $f/state
-}
-
-reset()
-{
-	if [ "`echo $1 | head -c3`" == "mic" ]; then
-		_reset $1
-		return $?
-	fi
-	for f in $sysfs/*
-	do
-		_reset `basename $f`
-		RETVAL=$?
-		[ $RETVAL -ne 0 ] && return $RETVAL
-	done
-	return 0
-}
-
-_boot()
-{
-	f=$sysfs/$1
-	echo "linux" > $f/bootmode
-	echo "mic/uos.img" > $f/firmware
-	echo "mic/$1.image" > $f/ramdisk
-	echo "boot" > $f/state
-}
-
-boot()
-{
-	if [ "`echo $1 | head -c3`" == "mic" ]; then
-		_boot $1
-		return $?
-	fi
-	for f in $sysfs/*
-	do
-		_boot `basename $f`
-		RETVAL=$?
-		[ $RETVAL -ne 0 ] && return $RETVAL
-	done
-	return 0
-}
-
-_shutdown()
-{
-	f=$sysfs/$1
-	echo shutdown > $f/state
-}
-
-shutdown()
-{
-	if [ "`echo $1 | head -c3`" == "mic" ]; then
-		_shutdown $1
-		return $?
-	fi
-	for f in $sysfs/*
-	do
-		_shutdown `basename $f`
-		RETVAL=$?
-		[ $RETVAL -ne 0 ] && return $RETVAL
-	done
-	return 0
-}
-
-_wait()
-{
-	f=$sysfs/$1
-	while [ "`cat $f/state`" != "offline" -a "`cat $f/state`" != "online" ]
-	do
-		sleep 1
-		echo -e "Waiting for $1 to go offline"
-	done
-}
-
-wait()
-{
-	if [ "`echo $1 | head -c3`" == "mic" ]; then
-		_wait $1
-		return $?
-	fi
-	# Wait for the cards to go offline
-	for f in $sysfs/*
-	do
-		_wait `basename $f`
-		RETVAL=$?
-		[ $RETVAL -ne 0 ] && return $RETVAL
-	done
-	return 0
-}
-
-if [ ! -d "$sysfs" ]; then
-	echo -e $"Module unloaded "
-	exit 3
-fi
-
-case $1 in
-	-s)
-		status $2
-		;;
-	-r)
-		reset $2
-		;;
-	-b)
-		boot $2
-		;;
-	-S)
-		shutdown $2
-		;;
-	-w)
-		wait $2
-		;;
-	*)
-		echo $"Usage: $0 {-s (status) |-r (reset) |-b (boot) |-S (shutdown) |-w (wait)}"
-		exit 2
-esac
-
-exit $?
diff -druNp --no-dereference linux-libre-4.4-gnu/Documentation/mic/mpssd/mpss linux-libre-4.4.107-gnu/Documentation/mic/mpssd/mpss
--- linux-libre-4.4-gnu/Documentation/mic/mpssd/mpss	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/Documentation/mic/mpssd/mpss	1969-12-31 19:00:00.000000000 -0500
@@ -1,200 +0,0 @@
-#!/bin/bash
-# Intel MIC Platform Software Stack (MPSS)
-#
-# Copyright(c) 2013 Intel Corporation.
-#
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License, version 2, as
-# published by the Free Software Foundation.
-#
-# This program is distributed in the hope that it will be useful, but
-# WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-# General Public License for more details.
-#
-# The full GNU General Public License is included in this distribution in
-# the file called "COPYING".
-#
-# Intel MIC User Space Tools.
-#
-# mpss	Start mpssd.
-#
-# chkconfig: 2345 95 05
-# description: start MPSS stack processing.
-#
-### BEGIN INIT INFO
-# Provides: mpss
-# Required-Start:
-# Required-Stop:
-# Short-Description: MPSS stack control
-# Description: MPSS stack control
-### END INIT INFO
-
-# Source function library.
-. /etc/init.d/functions
-
-exec=/usr/sbin/mpssd
-sysfs="/sys/class/mic"
-mic_modules="mic_host mic_x100_dma scif"
-
-start()
-{
-	[ -x $exec ] || exit 5
-
-	if [ "`ps -e | awk '{print $4}' | grep mpssd | head -1`" = "mpssd" ]; then
-		echo -e $"MPSSD already running! "
-		success
-		echo
-		return 0
-	fi
-
-	echo -e $"Starting MPSS Stack"
-	echo -e $"Loading MIC drivers:" $mic_modules
-
-	modprobe -a $mic_modules
-	RETVAL=$?
-	if [ $RETVAL -ne 0 ]; then
-		failure
-		echo
-		return $RETVAL
-	fi
-
-	# Start the daemon
-	echo -n $"Starting MPSSD "
-	$exec
-	RETVAL=$?
-	if [ $RETVAL -ne 0 ]; then
-		failure
-		echo
-		return $RETVAL
-	fi
-	success
-	echo
-
-	sleep 5
-
-	# Boot the cards
-	micctrl -b
-
-	# Wait till ping works
-	for f in $sysfs/*
-	do
-		count=100
-		ipaddr=`cat $f/cmdline`
-		ipaddr=${ipaddr#*address,}
-		ipaddr=`echo $ipaddr | cut -d, -f1 | cut -d\; -f1`
-		while [ $count -ge 0 ]
-		do
-			echo -e "Pinging "`basename $f`" "
-			ping -c 1 $ipaddr &> /dev/null
-			RETVAL=$?
-			if [ $RETVAL -eq 0 ]; then
-				success
-				break
-			fi
-			sleep 1
-			count=`expr $count - 1`
-		done
-		[ $RETVAL -ne 0 ] && failure || success
-		echo
-	done
-	return $RETVAL
-}
-
-stop()
-{
-	echo -e $"Shutting down MPSS Stack: "
-
-	# Bail out if module is unloaded
-	if [ ! -d "$sysfs" ]; then
-		echo -n $"Module unloaded "
-		success
-		echo
-		return 0
-	fi
-
-	# Shut down the cards.
-	micctrl -S
-
-	# Wait for the cards to go offline
-	for f in $sysfs/*
-	do
-		while [ "`cat $f/state`" != "ready" ]
-		do
-			sleep 1
-			echo -e "Waiting for "`basename $f`" to become ready"
-		done
-	done
-
-	# Display the status of the cards
-	micctrl -s
-
-	# Kill MPSSD now
-	echo -n $"Killing MPSSD"
-	killall -9 mpssd 2>/dev/null
-	RETVAL=$?
-	[ $RETVAL -ne 0 ] && failure || success
-	echo
-	return $RETVAL
-}
-
-restart()
-{
-	stop
-	sleep 5
-	start
-}
-
-status()
-{
-	micctrl -s
-	if [ "`ps -e | awk '{print $4}' | grep mpssd | head -n 1`" = "mpssd" ]; then
-		echo "mpssd is running"
-	else
-		echo "mpssd is stopped"
-	fi
-	return 0
-}
-
-unload()
-{
-	if [ ! -d "$sysfs" ]; then
-		echo -n $"No MIC_HOST Module: "
-		success
-		echo
-		return
-	fi
-
-	stop
-
-	sleep 5
-	echo -n $"Removing MIC drivers:" $mic_modules
-	modprobe -r $mic_modules
-	RETVAL=$?
-	[ $RETVAL -ne 0 ] && failure || success
-	echo
-	return $RETVAL
-}
-
-case $1 in
-	start)
-		start
-		;;
-	stop)
-		stop
-		;;
-	restart)
-		restart
-		;;
-	status)
-		status
-		;;
-	unload)
-		unload
-		;;
-	*)
-		echo $"Usage: $0 {start|stop|restart|status|unload}"
-		exit 2
-esac
-
-exit $?
diff -druNp --no-dereference linux-libre-4.4-gnu/Documentation/mic/mpssd/mpssd.c linux-libre-4.4.107-gnu/Documentation/mic/mpssd/mpssd.c
--- linux-libre-4.4-gnu/Documentation/mic/mpssd/mpssd.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/Documentation/mic/mpssd/mpssd.c	1969-12-31 19:00:00.000000000 -0500
@@ -1,1826 +0,0 @@
-/*
- * Intel MIC Platform Software Stack (MPSS)
- *
- * Copyright(c) 2013 Intel Corporation.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License, version 2, as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * The full GNU General Public License is included in this distribution in
- * the file called "COPYING".
- *
- * Intel MIC User Space Tools.
- */
-
-#define _GNU_SOURCE
-
-#include <stdlib.h>
-#include <fcntl.h>
-#include <getopt.h>
-#include <assert.h>
-#include <unistd.h>
-#include <stdbool.h>
-#include <signal.h>
-#include <poll.h>
-#include <features.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <sys/mman.h>
-#include <sys/socket.h>
-#include <linux/virtio_ring.h>
-#include <linux/virtio_net.h>
-#include <linux/virtio_console.h>
-#include <linux/virtio_blk.h>
-#include <linux/version.h>
-#include "mpssd.h"
-#include <linux/mic_ioctl.h>
-#include <linux/mic_common.h>
-#include <tools/endian.h>
-
-static void *init_mic(void *arg);
-
-static FILE *logfp;
-static struct mic_info mic_list;
-
-#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
-
-#define min_t(type, x, y) ({				\
-		type __min1 = (x);                      \
-		type __min2 = (y);                      \
-		__min1 < __min2 ? __min1 : __min2; })
-
-/* align addr on a size boundary - adjust address up/down if needed */
-#define _ALIGN_DOWN(addr, size)  ((addr)&(~((size)-1)))
-#define _ALIGN_UP(addr, size)    _ALIGN_DOWN(addr + size - 1, size)
-
-/* align addr on a size boundary - adjust address up if needed */
-#define _ALIGN(addr, size)     _ALIGN_UP(addr, size)
-
-/* to align the pointer to the (next) page boundary */
-#define PAGE_ALIGN(addr)        _ALIGN(addr, PAGE_SIZE)
-
-#define ACCESS_ONCE(x) (*(volatile typeof(x) *)&(x))
-
-#define GSO_ENABLED		1
-#define MAX_GSO_SIZE		(64 * 1024)
-#define ETH_H_LEN		14
-#define MAX_NET_PKT_SIZE	(_ALIGN_UP(MAX_GSO_SIZE + ETH_H_LEN, 64))
-#define MIC_DEVICE_PAGE_END	0x1000
-
-#ifndef VIRTIO_NET_HDR_F_DATA_VALID
-#define VIRTIO_NET_HDR_F_DATA_VALID	2	/* Csum is valid */
-#endif
-
-static struct {
-	struct mic_device_desc dd;
-	struct mic_vqconfig vqconfig[2];
-	__u32 host_features, guest_acknowledgements;
-	struct virtio_console_config cons_config;
-} virtcons_dev_page = {
-	.dd = {
-		.type = VIRTIO_ID_CONSOLE,
-		.num_vq = ARRAY_SIZE(virtcons_dev_page.vqconfig),
-		.feature_len = sizeof(virtcons_dev_page.host_features),
-		.config_len = sizeof(virtcons_dev_page.cons_config),
-	},
-	.vqconfig[0] = {
-		.num = htole16(MIC_VRING_ENTRIES),
-	},
-	.vqconfig[1] = {
-		.num = htole16(MIC_VRING_ENTRIES),
-	},
-};
-
-static struct {
-	struct mic_device_desc dd;
-	struct mic_vqconfig vqconfig[2];
-	__u32 host_features, guest_acknowledgements;
-	struct virtio_net_config net_config;
-} virtnet_dev_page = {
-	.dd = {
-		.type = VIRTIO_ID_NET,
-		.num_vq = ARRAY_SIZE(virtnet_dev_page.vqconfig),
-		.feature_len = sizeof(virtnet_dev_page.host_features),
-		.config_len = sizeof(virtnet_dev_page.net_config),
-	},
-	.vqconfig[0] = {
-		.num = htole16(MIC_VRING_ENTRIES),
-	},
-	.vqconfig[1] = {
-		.num = htole16(MIC_VRING_ENTRIES),
-	},
-#if GSO_ENABLED
-	.host_features = htole32(
-		1 << VIRTIO_NET_F_CSUM |
-		1 << VIRTIO_NET_F_GSO |
-		1 << VIRTIO_NET_F_GUEST_TSO4 |
-		1 << VIRTIO_NET_F_GUEST_TSO6 |
-		1 << VIRTIO_NET_F_GUEST_ECN),
-#else
-		.host_features = 0,
-#endif
-};
-
-static const char *mic_config_dir = "/etc/mpss";
-static const char *virtblk_backend = "VIRTBLK_BACKEND";
-static struct {
-	struct mic_device_desc dd;
-	struct mic_vqconfig vqconfig[1];
-	__u32 host_features, guest_acknowledgements;
-	struct virtio_blk_config blk_config;
-} virtblk_dev_page = {
-	.dd = {
-		.type = VIRTIO_ID_BLOCK,
-		.num_vq = ARRAY_SIZE(virtblk_dev_page.vqconfig),
-		.feature_len = sizeof(virtblk_dev_page.host_features),
-		.config_len = sizeof(virtblk_dev_page.blk_config),
-	},
-	.vqconfig[0] = {
-		.num = htole16(MIC_VRING_ENTRIES),
-	},
-	.host_features =
-		htole32(1<<VIRTIO_BLK_F_SEG_MAX),
-	.blk_config = {
-		.seg_max = htole32(MIC_VRING_ENTRIES - 2),
-		.capacity = htole64(0),
-	 }
-};
-
-static char *myname;
-
-static int
-tap_configure(struct mic_info *mic, char *dev)
-{
-	pid_t pid;
-	char *ifargv[7];
-	char ipaddr[IFNAMSIZ];
-	int ret = 0;
-
-	pid = fork();
-	if (pid == 0) {
-		ifargv[0] = "ip";
-		ifargv[1] = "link";
-		ifargv[2] = "set";
-		ifargv[3] = dev;
-		ifargv[4] = "up";
-		ifargv[5] = NULL;
-		mpsslog("Configuring %s\n", dev);
-		ret = execvp("ip", ifargv);
-		if (ret < 0) {
-			mpsslog("%s execvp failed errno %s\n",
-				mic->name, strerror(errno));
-			return ret;
-		}
-	}
-	if (pid < 0) {
-		mpsslog("%s fork failed errno %s\n",
-			mic->name, strerror(errno));
-		return ret;
-	}
-
-	ret = waitpid(pid, NULL, 0);
-	if (ret < 0) {
-		mpsslog("%s waitpid failed errno %s\n",
-			mic->name, strerror(errno));
-		return ret;
-	}
-
-	snprintf(ipaddr, IFNAMSIZ, "172.31.%d.254/24", mic->id + 1);
-
-	pid = fork();
-	if (pid == 0) {
-		ifargv[0] = "ip";
-		ifargv[1] = "addr";
-		ifargv[2] = "add";
-		ifargv[3] = ipaddr;
-		ifargv[4] = "dev";
-		ifargv[5] = dev;
-		ifargv[6] = NULL;
-		mpsslog("Configuring %s ipaddr %s\n", dev, ipaddr);
-		ret = execvp("ip", ifargv);
-		if (ret < 0) {
-			mpsslog("%s execvp failed errno %s\n",
-				mic->name, strerror(errno));
-			return ret;
-		}
-	}
-	if (pid < 0) {
-		mpsslog("%s fork failed errno %s\n",
-			mic->name, strerror(errno));
-		return ret;
-	}
-
-	ret = waitpid(pid, NULL, 0);
-	if (ret < 0) {
-		mpsslog("%s waitpid failed errno %s\n",
-			mic->name, strerror(errno));
-		return ret;
-	}
-	mpsslog("MIC name %s %s %d DONE!\n",
-		mic->name, __func__, __LINE__);
-	return 0;
-}
-
-static int tun_alloc(struct mic_info *mic, char *dev)
-{
-	struct ifreq ifr;
-	int fd, err;
-#if GSO_ENABLED
-	unsigned offload;
-#endif
-	fd = open("/dev/net/tun", O_RDWR);
-	if (fd < 0) {
-		mpsslog("Could not open /dev/net/tun %s\n", strerror(errno));
-		goto done;
-	}
-
-	memset(&ifr, 0, sizeof(ifr));
-
-	ifr.ifr_flags = IFF_TAP | IFF_NO_PI | IFF_VNET_HDR;
-	if (*dev)
-		strncpy(ifr.ifr_name, dev, IFNAMSIZ);
-
-	err = ioctl(fd, TUNSETIFF, (void *)&ifr);
-	if (err < 0) {
-		mpsslog("%s %s %d TUNSETIFF failed %s\n",
-			mic->name, __func__, __LINE__, strerror(errno));
-		close(fd);
-		return err;
-	}
-#if GSO_ENABLED
-	offload = TUN_F_CSUM | TUN_F_TSO4 | TUN_F_TSO6 | TUN_F_TSO_ECN;
-
-	err = ioctl(fd, TUNSETOFFLOAD, offload);
-	if (err < 0) {
-		mpsslog("%s %s %d TUNSETOFFLOAD failed %s\n",
-			mic->name, __func__, __LINE__, strerror(errno));
-		close(fd);
-		return err;
-	}
-#endif
-	strcpy(dev, ifr.ifr_name);
-	mpsslog("Created TAP %s\n", dev);
-done:
-	return fd;
-}
-
-#define NET_FD_VIRTIO_NET 0
-#define NET_FD_TUN 1
-#define MAX_NET_FD 2
-
-static void set_dp(struct mic_info *mic, int type, void *dp)
-{
-	switch (type) {
-	case VIRTIO_ID_CONSOLE:
-		mic->mic_console.console_dp = dp;
-		return;
-	case VIRTIO_ID_NET:
-		mic->mic_net.net_dp = dp;
-		return;
-	case VIRTIO_ID_BLOCK:
-		mic->mic_virtblk.block_dp = dp;
-		return;
-	}
-	mpsslog("%s %s %d not found\n", mic->name, __func__, type);
-	assert(0);
-}
-
-static void *get_dp(struct mic_info *mic, int type)
-{
-	switch (type) {
-	case VIRTIO_ID_CONSOLE:
-		return mic->mic_console.console_dp;
-	case VIRTIO_ID_NET:
-		return mic->mic_net.net_dp;
-	case VIRTIO_ID_BLOCK:
-		return mic->mic_virtblk.block_dp;
-	}
-	mpsslog("%s %s %d not found\n", mic->name, __func__, type);
-	assert(0);
-	return NULL;
-}
-
-static struct mic_device_desc *get_device_desc(struct mic_info *mic, int type)
-{
-	struct mic_device_desc *d;
-	int i;
-	void *dp = get_dp(mic, type);
-
-	for (i = sizeof(struct mic_bootparam); i < PAGE_SIZE;
-		i += mic_total_desc_size(d)) {
-		d = dp + i;
-
-		/* End of list */
-		if (d->type == 0)
-			break;
-
-		if (d->type == -1)
-			continue;
-
-		mpsslog("%s %s d-> type %d d %p\n",
-			mic->name, __func__, d->type, d);
-
-		if (d->type == (__u8)type)
-			return d;
-	}
-	mpsslog("%s %s %d not found\n", mic->name, __func__, type);
-	return NULL;
-}
-
-/* See comments in vhost.c for explanation of next_desc() */
-static unsigned next_desc(struct vring_desc *desc)
-{
-	unsigned int next;
-
-	if (!(le16toh(desc->flags) & VRING_DESC_F_NEXT))
-		return -1U;
-	next = le16toh(desc->next);
-	return next;
-}
-
-/* Sum up all the IOVEC length */
-static ssize_t
-sum_iovec_len(struct mic_copy_desc *copy)
-{
-	ssize_t sum = 0;
-	int i;
-
-	for (i = 0; i < copy->iovcnt; i++)
-		sum += copy->iov[i].iov_len;
-	return sum;
-}
-
-static inline void verify_out_len(struct mic_info *mic,
-	struct mic_copy_desc *copy)
-{
-	if (copy->out_len != sum_iovec_len(copy)) {
-		mpsslog("%s %s %d BUG copy->out_len 0x%x len 0x%zx\n",
-			mic->name, __func__, __LINE__,
-			copy->out_len, sum_iovec_len(copy));
-		assert(copy->out_len == sum_iovec_len(copy));
-	}
-}
-
-/* Display an iovec */
-static void
-disp_iovec(struct mic_info *mic, struct mic_copy_desc *copy,
-	   const char *s, int line)
-{
-	int i;
-
-	for (i = 0; i < copy->iovcnt; i++)
-		mpsslog("%s %s %d copy->iov[%d] addr %p len 0x%zx\n",
-			mic->name, s, line, i,
-			copy->iov[i].iov_base, copy->iov[i].iov_len);
-}
-
-static inline __u16 read_avail_idx(struct mic_vring *vr)
-{
-	return ACCESS_ONCE(vr->info->avail_idx);
-}
-
-static inline void txrx_prepare(int type, bool tx, struct mic_vring *vr,
-				struct mic_copy_desc *copy, ssize_t len)
-{
-	copy->vr_idx = tx ? 0 : 1;
-	copy->update_used = true;
-	if (type == VIRTIO_ID_NET)
-		copy->iov[1].iov_len = len - sizeof(struct virtio_net_hdr);
-	else
-		copy->iov[0].iov_len = len;
-}
-
-/* Central API which triggers the copies */
-static int
-mic_virtio_copy(struct mic_info *mic, int fd,
-		struct mic_vring *vr, struct mic_copy_desc *copy)
-{
-	int ret;
-
-	ret = ioctl(fd, MIC_VIRTIO_COPY_DESC, copy);
-	if (ret) {
-		mpsslog("%s %s %d errno %s ret %d\n",
-			mic->name, __func__, __LINE__,
-			strerror(errno), ret);
-	}
-	return ret;
-}
-
-static inline unsigned _vring_size(unsigned int num, unsigned long align)
-{
-	return ((sizeof(struct vring_desc) * num + sizeof(__u16) * (3 + num)
-				+ align - 1) & ~(align - 1))
-		+ sizeof(__u16) * 3 + sizeof(struct vring_used_elem) * num;
-}
-
-/*
- * This initialization routine requires at least one
- * vring i.e. vr0. vr1 is optional.
- */
-static void *
-init_vr(struct mic_info *mic, int fd, int type,
-	struct mic_vring *vr0, struct mic_vring *vr1, int num_vq)
-{
-	int vr_size;
-	char *va;
-
-	vr_size = PAGE_ALIGN(_vring_size(MIC_VRING_ENTRIES,
-					 MIC_VIRTIO_RING_ALIGN) +
-			     sizeof(struct _mic_vring_info));
-	va = mmap(NULL, MIC_DEVICE_PAGE_END + vr_size * num_vq,
-		PROT_READ, MAP_SHARED, fd, 0);
-	if (MAP_FAILED == va) {
-		mpsslog("%s %s %d mmap failed errno %s\n",
-			mic->name, __func__, __LINE__,
-			strerror(errno));
-		goto done;
-	}
-	set_dp(mic, type, va);
-	vr0->va = (struct mic_vring *)&va[MIC_DEVICE_PAGE_END];
-	vr0->info = vr0->va +
-		_vring_size(MIC_VRING_ENTRIES, MIC_VIRTIO_RING_ALIGN);
-	vring_init(&vr0->vr,
-		   MIC_VRING_ENTRIES, vr0->va, MIC_VIRTIO_RING_ALIGN);
-	mpsslog("%s %s vr0 %p vr0->info %p vr_size 0x%x vring 0x%x ",
-		__func__, mic->name, vr0->va, vr0->info, vr_size,
-		_vring_size(MIC_VRING_ENTRIES, MIC_VIRTIO_RING_ALIGN));
-	mpsslog("magic 0x%x expected 0x%x\n",
-		le32toh(vr0->info->magic), MIC_MAGIC + type);
-	assert(le32toh(vr0->info->magic) == MIC_MAGIC + type);
-	if (vr1) {
-		vr1->va = (struct mic_vring *)
-			&va[MIC_DEVICE_PAGE_END + vr_size];
-		vr1->info = vr1->va + _vring_size(MIC_VRING_ENTRIES,
-			MIC_VIRTIO_RING_ALIGN);
-		vring_init(&vr1->vr,
-			   MIC_VRING_ENTRIES, vr1->va, MIC_VIRTIO_RING_ALIGN);
-		mpsslog("%s %s vr1 %p vr1->info %p vr_size 0x%x vring 0x%x ",
-			__func__, mic->name, vr1->va, vr1->info, vr_size,
-			_vring_size(MIC_VRING_ENTRIES, MIC_VIRTIO_RING_ALIGN));
-		mpsslog("magic 0x%x expected 0x%x\n",
-			le32toh(vr1->info->magic), MIC_MAGIC + type + 1);
-		assert(le32toh(vr1->info->magic) == MIC_MAGIC + type + 1);
-	}
-done:
-	return va;
-}
-
-static int
-wait_for_card_driver(struct mic_info *mic, int fd, int type)
-{
-	struct pollfd pollfd;
-	int err;
-	struct mic_device_desc *desc = get_device_desc(mic, type);
-	__u8 prev_status;
-
-	if (!desc)
-		return -ENODEV;
-	prev_status = desc->status;
-	pollfd.fd = fd;
-	mpsslog("%s %s Waiting .... desc-> type %d status 0x%x\n",
-		mic->name, __func__, type, desc->status);
-
-	while (1) {
-		pollfd.events = POLLIN;
-		pollfd.revents = 0;
-		err = poll(&pollfd, 1, -1);
-		if (err < 0) {
-			mpsslog("%s %s poll failed %s\n",
-				mic->name, __func__, strerror(errno));
-			continue;
-		}
-
-		if (pollfd.revents) {
-			if (desc->status != prev_status) {
-				mpsslog("%s %s Waiting... desc-> type %d "
-					"status 0x%x\n",
-					mic->name, __func__, type,
-					desc->status);
-				prev_status = desc->status;
-			}
-			if (desc->status & VIRTIO_CONFIG_S_DRIVER_OK) {
-				mpsslog("%s %s poll.revents %d\n",
-					mic->name, __func__, pollfd.revents);
-				mpsslog("%s %s desc-> type %d status 0x%x\n",
-					mic->name, __func__, type,
-					desc->status);
-				break;
-			}
-		}
-	}
-	return 0;
-}
-
-/* Spin till we have some descriptors */
-static void
-spin_for_descriptors(struct mic_info *mic, struct mic_vring *vr)
-{
-	__u16 avail_idx = read_avail_idx(vr);
-
-	while (avail_idx == le16toh(ACCESS_ONCE(vr->vr.avail->idx))) {
-#ifdef DEBUG
-		mpsslog("%s %s waiting for desc avail %d info_avail %d\n",
-			mic->name, __func__,
-			le16toh(vr->vr.avail->idx), vr->info->avail_idx);
-#endif
-		sched_yield();
-	}
-}
-
-static void *
-virtio_net(void *arg)
-{
-	static __u8 vnet_hdr[2][sizeof(struct virtio_net_hdr)];
-	static __u8 vnet_buf[2][MAX_NET_PKT_SIZE] __attribute__ ((aligned(64)));
-	struct iovec vnet_iov[2][2] = {
-		{ { .iov_base = vnet_hdr[0], .iov_len = sizeof(vnet_hdr[0]) },
-		  { .iov_base = vnet_buf[0], .iov_len = sizeof(vnet_buf[0]) } },
-		{ { .iov_base = vnet_hdr[1], .iov_len = sizeof(vnet_hdr[1]) },
-		  { .iov_base = vnet_buf[1], .iov_len = sizeof(vnet_buf[1]) } },
-	};
-	struct iovec *iov0 = vnet_iov[0], *iov1 = vnet_iov[1];
-	struct mic_info *mic = (struct mic_info *)arg;
-	char if_name[IFNAMSIZ];
-	struct pollfd net_poll[MAX_NET_FD];
-	struct mic_vring tx_vr, rx_vr;
-	struct mic_copy_desc copy;
-	struct mic_device_desc *desc;
-	int err;
-
-	snprintf(if_name, IFNAMSIZ, "mic%d", mic->id);
-	mic->mic_net.tap_fd = tun_alloc(mic, if_name);
-	if (mic->mic_net.tap_fd < 0)
-		goto done;
-
-	if (tap_configure(mic, if_name))
-		goto done;
-	mpsslog("MIC name %s id %d\n", mic->name, mic->id);
-
-	net_poll[NET_FD_VIRTIO_NET].fd = mic->mic_net.virtio_net_fd;
-	net_poll[NET_FD_VIRTIO_NET].events = POLLIN;
-	net_poll[NET_FD_TUN].fd = mic->mic_net.tap_fd;
-	net_poll[NET_FD_TUN].events = POLLIN;
-
-	if (MAP_FAILED == init_vr(mic, mic->mic_net.virtio_net_fd,
-				  VIRTIO_ID_NET, &tx_vr, &rx_vr,
-		virtnet_dev_page.dd.num_vq)) {
-		mpsslog("%s init_vr failed %s\n",
-			mic->name, strerror(errno));
-		goto done;
-	}
-
-	copy.iovcnt = 2;
-	desc = get_device_desc(mic, VIRTIO_ID_NET);
-
-	while (1) {
-		ssize_t len;
-
-		net_poll[NET_FD_VIRTIO_NET].revents = 0;
-		net_poll[NET_FD_TUN].revents = 0;
-
-		/* Start polling for data from tap and virtio net */
-		err = poll(net_poll, 2, -1);
-		if (err < 0) {
-			mpsslog("%s poll failed %s\n",
-				__func__, strerror(errno));
-			continue;
-		}
-		if (!(desc->status & VIRTIO_CONFIG_S_DRIVER_OK)) {
-			err = wait_for_card_driver(mic,
-						   mic->mic_net.virtio_net_fd,
-						   VIRTIO_ID_NET);
-			if (err) {
-				mpsslog("%s %s %d Exiting...\n",
-					mic->name, __func__, __LINE__);
-				break;
-			}
-		}
-		/*
-		 * Check if there is data to be read from TUN and write to
-		 * virtio net fd if there is.
-		 */
-		if (net_poll[NET_FD_TUN].revents & POLLIN) {
-			copy.iov = iov0;
-			len = readv(net_poll[NET_FD_TUN].fd,
-				copy.iov, copy.iovcnt);
-			if (len > 0) {
-				struct virtio_net_hdr *hdr
-					= (struct virtio_net_hdr *)vnet_hdr[0];
-
-				/* Disable checksums on the card since we are on
-				   a reliable PCIe link */
-				hdr->flags |= VIRTIO_NET_HDR_F_DATA_VALID;
-#ifdef DEBUG
-				mpsslog("%s %s %d hdr->flags 0x%x ", mic->name,
-					__func__, __LINE__, hdr->flags);
-				mpsslog("copy.out_len %d hdr->gso_type 0x%x\n",
-					copy.out_len, hdr->gso_type);
-#endif
-#ifdef DEBUG
-				disp_iovec(mic, copy, __func__, __LINE__);
-				mpsslog("%s %s %d read from tap 0x%lx\n",
-					mic->name, __func__, __LINE__,
-					len);
-#endif
-				spin_for_descriptors(mic, &tx_vr);
-				txrx_prepare(VIRTIO_ID_NET, 1, &tx_vr, &copy,
-					     len);
-
-				err = mic_virtio_copy(mic,
-					mic->mic_net.virtio_net_fd, &tx_vr,
-					&copy);
-				if (err < 0) {
-					mpsslog("%s %s %d mic_virtio_copy %s\n",
-						mic->name, __func__, __LINE__,
-						strerror(errno));
-				}
-				if (!err)
-					verify_out_len(mic, &copy);
-#ifdef DEBUG
-				disp_iovec(mic, copy, __func__, __LINE__);
-				mpsslog("%s %s %d wrote to net 0x%lx\n",
-					mic->name, __func__, __LINE__,
-					sum_iovec_len(&copy));
-#endif
-				/* Reinitialize IOV for next run */
-				iov0[1].iov_len = MAX_NET_PKT_SIZE;
-			} else if (len < 0) {
-				disp_iovec(mic, &copy, __func__, __LINE__);
-				mpsslog("%s %s %d read failed %s ", mic->name,
-					__func__, __LINE__, strerror(errno));
-				mpsslog("cnt %d sum %zd\n",
-					copy.iovcnt, sum_iovec_len(&copy));
-			}
-		}
-
-		/*
-		 * Check if there is data to be read from virtio net and
-		 * write to TUN if there is.
-		 */
-		if (net_poll[NET_FD_VIRTIO_NET].revents & POLLIN) {
-			while (rx_vr.info->avail_idx !=
-				le16toh(rx_vr.vr.avail->idx)) {
-				copy.iov = iov1;
-				txrx_prepare(VIRTIO_ID_NET, 0, &rx_vr, &copy,
-					     MAX_NET_PKT_SIZE
-					+ sizeof(struct virtio_net_hdr));
-
-				err = mic_virtio_copy(mic,
-					mic->mic_net.virtio_net_fd, &rx_vr,
-					&copy);
-				if (!err) {
-#ifdef DEBUG
-					struct virtio_net_hdr *hdr
-						= (struct virtio_net_hdr *)
-							vnet_hdr[1];
-
-					mpsslog("%s %s %d hdr->flags 0x%x, ",
-						mic->name, __func__, __LINE__,
-						hdr->flags);
-					mpsslog("out_len %d gso_type 0x%x\n",
-						copy.out_len,
-						hdr->gso_type);
-#endif
-					/* Set the correct output iov_len */
-					iov1[1].iov_len = copy.out_len -
-						sizeof(struct virtio_net_hdr);
-					verify_out_len(mic, &copy);
-#ifdef DEBUG
-					disp_iovec(mic, copy, __func__,
-						   __LINE__);
-					mpsslog("%s %s %d ",
-						mic->name, __func__, __LINE__);
-					mpsslog("read from net 0x%lx\n",
-						sum_iovec_len(copy));
-#endif
-					len = writev(net_poll[NET_FD_TUN].fd,
-						copy.iov, copy.iovcnt);
-					if (len != sum_iovec_len(&copy)) {
-						mpsslog("Tun write failed %s ",
-							strerror(errno));
-						mpsslog("len 0x%zx ", len);
-						mpsslog("read_len 0x%zx\n",
-							sum_iovec_len(&copy));
-					} else {
-#ifdef DEBUG
-						disp_iovec(mic, &copy, __func__,
-							   __LINE__);
-						mpsslog("%s %s %d ",
-							mic->name, __func__,
-							__LINE__);
-						mpsslog("wrote to tap 0x%lx\n",
-							len);
-#endif
-					}
-				} else {
-					mpsslog("%s %s %d mic_virtio_copy %s\n",
-						mic->name, __func__, __LINE__,
-						strerror(errno));
-					break;
-				}
-			}
-		}
-		if (net_poll[NET_FD_VIRTIO_NET].revents & POLLERR)
-			mpsslog("%s: %s: POLLERR\n", __func__, mic->name);
-	}
-done:
-	pthread_exit(NULL);
-}
-
-/* virtio_console */
-#define VIRTIO_CONSOLE_FD 0
-#define MONITOR_FD (VIRTIO_CONSOLE_FD + 1)
-#define MAX_CONSOLE_FD (MONITOR_FD + 1)  /* must be the last one + 1 */
-#define MAX_BUFFER_SIZE PAGE_SIZE
-
-static void *
-virtio_console(void *arg)
-{
-	static __u8 vcons_buf[2][PAGE_SIZE];
-	struct iovec vcons_iov[2] = {
-		{ .iov_base = vcons_buf[0], .iov_len = sizeof(vcons_buf[0]) },
-		{ .iov_base = vcons_buf[1], .iov_len = sizeof(vcons_buf[1]) },
-	};
-	struct iovec *iov0 = &vcons_iov[0], *iov1 = &vcons_iov[1];
-	struct mic_info *mic = (struct mic_info *)arg;
-	int err;
-	struct pollfd console_poll[MAX_CONSOLE_FD];
-	int pty_fd;
-	char *pts_name;
-	ssize_t len;
-	struct mic_vring tx_vr, rx_vr;
-	struct mic_copy_desc copy;
-	struct mic_device_desc *desc;
-
-	pty_fd = posix_openpt(O_RDWR);
-	if (pty_fd < 0) {
-		mpsslog("can't open a pseudoterminal master device: %s\n",
-			strerror(errno));
-		goto _return;
-	}
-	pts_name = ptsname(pty_fd);
-	if (pts_name == NULL) {
-		mpsslog("can't get pts name\n");
-		goto _close_pty;
-	}
-	printf("%s console message goes to %s\n", mic->name, pts_name);
-	mpsslog("%s console message goes to %s\n", mic->name, pts_name);
-	err = grantpt(pty_fd);
-	if (err < 0) {
-		mpsslog("can't grant access: %s %s\n",
-			pts_name, strerror(errno));
-		goto _close_pty;
-	}
-	err = unlockpt(pty_fd);
-	if (err < 0) {
-		mpsslog("can't unlock a pseudoterminal: %s %s\n",
-			pts_name, strerror(errno));
-		goto _close_pty;
-	}
-	console_poll[MONITOR_FD].fd = pty_fd;
-	console_poll[MONITOR_FD].events = POLLIN;
-
-	console_poll[VIRTIO_CONSOLE_FD].fd = mic->mic_console.virtio_console_fd;
-	console_poll[VIRTIO_CONSOLE_FD].events = POLLIN;
-
-	if (MAP_FAILED == init_vr(mic, mic->mic_console.virtio_console_fd,
-				  VIRTIO_ID_CONSOLE, &tx_vr, &rx_vr,
-		virtcons_dev_page.dd.num_vq)) {
-		mpsslog("%s init_vr failed %s\n",
-			mic->name, strerror(errno));
-		goto _close_pty;
-	}
-
-	copy.iovcnt = 1;
-	desc = get_device_desc(mic, VIRTIO_ID_CONSOLE);
-
-	for (;;) {
-		console_poll[MONITOR_FD].revents = 0;
-		console_poll[VIRTIO_CONSOLE_FD].revents = 0;
-		err = poll(console_poll, MAX_CONSOLE_FD, -1);
-		if (err < 0) {
-			mpsslog("%s %d: poll failed: %s\n", __func__, __LINE__,
-				strerror(errno));
-			continue;
-		}
-		if (!(desc->status & VIRTIO_CONFIG_S_DRIVER_OK)) {
-			err = wait_for_card_driver(mic,
-					mic->mic_console.virtio_console_fd,
-					VIRTIO_ID_CONSOLE);
-			if (err) {
-				mpsslog("%s %s %d Exiting...\n",
-					mic->name, __func__, __LINE__);
-				break;
-			}
-		}
-
-		if (console_poll[MONITOR_FD].revents & POLLIN) {
-			copy.iov = iov0;
-			len = readv(pty_fd, copy.iov, copy.iovcnt);
-			if (len > 0) {
-#ifdef DEBUG
-				disp_iovec(mic, copy, __func__, __LINE__);
-				mpsslog("%s %s %d read from tap 0x%lx\n",
-					mic->name, __func__, __LINE__,
-					len);
-#endif
-				spin_for_descriptors(mic, &tx_vr);
-				txrx_prepare(VIRTIO_ID_CONSOLE, 1, &tx_vr,
-					     &copy, len);
-
-				err = mic_virtio_copy(mic,
-					mic->mic_console.virtio_console_fd,
-					&tx_vr, &copy);
-				if (err < 0) {
-					mpsslog("%s %s %d mic_virtio_copy %s\n",
-						mic->name, __func__, __LINE__,
-						strerror(errno));
-				}
-				if (!err)
-					verify_out_len(mic, &copy);
-#ifdef DEBUG
-				disp_iovec(mic, copy, __func__, __LINE__);
-				mpsslog("%s %s %d wrote to net 0x%lx\n",
-					mic->name, __func__, __LINE__,
-					sum_iovec_len(copy));
-#endif
-				/* Reinitialize IOV for next run */
-				iov0->iov_len = PAGE_SIZE;
-			} else if (len < 0) {
-				disp_iovec(mic, &copy, __func__, __LINE__);
-				mpsslog("%s %s %d read failed %s ",
-					mic->name, __func__, __LINE__,
-					strerror(errno));
-				mpsslog("cnt %d sum %zd\n",
-					copy.iovcnt, sum_iovec_len(&copy));
-			}
-		}
-
-		if (console_poll[VIRTIO_CONSOLE_FD].revents & POLLIN) {
-			while (rx_vr.info->avail_idx !=
-				le16toh(rx_vr.vr.avail->idx)) {
-				copy.iov = iov1;
-				txrx_prepare(VIRTIO_ID_CONSOLE, 0, &rx_vr,
-					     &copy, PAGE_SIZE);
-
-				err = mic_virtio_copy(mic,
-					mic->mic_console.virtio_console_fd,
-					&rx_vr, &copy);
-				if (!err) {
-					/* Set the correct output iov_len */
-					iov1->iov_len = copy.out_len;
-					verify_out_len(mic, &copy);
-#ifdef DEBUG
-					disp_iovec(mic, copy, __func__,
-						   __LINE__);
-					mpsslog("%s %s %d ",
-						mic->name, __func__, __LINE__);
-					mpsslog("read from net 0x%lx\n",
-						sum_iovec_len(copy));
-#endif
-					len = writev(pty_fd,
-						copy.iov, copy.iovcnt);
-					if (len != sum_iovec_len(&copy)) {
-						mpsslog("Tun write failed %s ",
-							strerror(errno));
-						mpsslog("len 0x%zx ", len);
-						mpsslog("read_len 0x%zx\n",
-							sum_iovec_len(&copy));
-					} else {
-#ifdef DEBUG
-						disp_iovec(mic, copy, __func__,
-							   __LINE__);
-						mpsslog("%s %s %d ",
-							mic->name, __func__,
-							__LINE__);
-						mpsslog("wrote to tap 0x%lx\n",
-							len);
-#endif
-					}
-				} else {
-					mpsslog("%s %s %d mic_virtio_copy %s\n",
-						mic->name, __func__, __LINE__,
-						strerror(errno));
-					break;
-				}
-			}
-		}
-		if (console_poll[NET_FD_VIRTIO_NET].revents & POLLERR)
-			mpsslog("%s: %s: POLLERR\n", __func__, mic->name);
-	}
-_close_pty:
-	close(pty_fd);
-_return:
-	pthread_exit(NULL);
-}
-
-static void
-add_virtio_device(struct mic_info *mic, struct mic_device_desc *dd)
-{
-	char path[PATH_MAX];
-	int fd, err;
-
-	snprintf(path, PATH_MAX, "/dev/mic%d", mic->id);
-	fd = open(path, O_RDWR);
-	if (fd < 0) {
-		mpsslog("Could not open %s %s\n", path, strerror(errno));
-		return;
-	}
-
-	err = ioctl(fd, MIC_VIRTIO_ADD_DEVICE, dd);
-	if (err < 0) {
-		mpsslog("Could not add %d %s\n", dd->type, strerror(errno));
-		close(fd);
-		return;
-	}
-	switch (dd->type) {
-	case VIRTIO_ID_NET:
-		mic->mic_net.virtio_net_fd = fd;
-		mpsslog("Added VIRTIO_ID_NET for %s\n", mic->name);
-		break;
-	case VIRTIO_ID_CONSOLE:
-		mic->mic_console.virtio_console_fd = fd;
-		mpsslog("Added VIRTIO_ID_CONSOLE for %s\n", mic->name);
-		break;
-	case VIRTIO_ID_BLOCK:
-		mic->mic_virtblk.virtio_block_fd = fd;
-		mpsslog("Added VIRTIO_ID_BLOCK for %s\n", mic->name);
-		break;
-	}
-}
-
-static bool
-set_backend_file(struct mic_info *mic)
-{
-	FILE *config;
-	char buff[PATH_MAX], *line, *evv, *p;
-
-	snprintf(buff, PATH_MAX, "%s/mpssd%03d.conf", mic_config_dir, mic->id);
-	config = fopen(buff, "r");
-	if (config == NULL)
-		return false;
-	do {  /* look for "virtblk_backend=XXXX" */
-		line = fgets(buff, PATH_MAX, config);
-		if (line == NULL)
-			break;
-		if (*line == '#')
-			continue;
-		p = strchr(line, '\n');
-		if (p)
-			*p = '\0';
-	} while (strncmp(line, virtblk_backend, strlen(virtblk_backend)) != 0);
-	fclose(config);
-	if (line == NULL)
-		return false;
-	evv = strchr(line, '=');
-	if (evv == NULL)
-		return false;
-	mic->mic_virtblk.backend_file = malloc(strlen(evv) + 1);
-	if (mic->mic_virtblk.backend_file == NULL) {
-		mpsslog("%s %d can't allocate memory\n", mic->name, mic->id);
-		return false;
-	}
-	strcpy(mic->mic_virtblk.backend_file, evv + 1);
-	return true;
-}
-
-#define SECTOR_SIZE 512
-static bool
-set_backend_size(struct mic_info *mic)
-{
-	mic->mic_virtblk.backend_size = lseek(mic->mic_virtblk.backend, 0,
-		SEEK_END);
-	if (mic->mic_virtblk.backend_size < 0) {
-		mpsslog("%s: can't seek: %s\n",
-			mic->name, mic->mic_virtblk.backend_file);
-		return false;
-	}
-	virtblk_dev_page.blk_config.capacity =
-		mic->mic_virtblk.backend_size / SECTOR_SIZE;
-	if ((mic->mic_virtblk.backend_size % SECTOR_SIZE) != 0)
-		virtblk_dev_page.blk_config.capacity++;
-
-	virtblk_dev_page.blk_config.capacity =
-		htole64(virtblk_dev_page.blk_config.capacity);
-
-	return true;
-}
-
-static bool
-open_backend(struct mic_info *mic)
-{
-	if (!set_backend_file(mic))
-		goto _error_exit;
-	mic->mic_virtblk.backend = open(mic->mic_virtblk.backend_file, O_RDWR);
-	if (mic->mic_virtblk.backend < 0) {
-		mpsslog("%s: can't open: %s\n", mic->name,
-			mic->mic_virtblk.backend_file);
-		goto _error_free;
-	}
-	if (!set_backend_size(mic))
-		goto _error_close;
-	mic->mic_virtblk.backend_addr = mmap(NULL,
-		mic->mic_virtblk.backend_size,
-		PROT_READ|PROT_WRITE, MAP_SHARED,
-		mic->mic_virtblk.backend, 0L);
-	if (mic->mic_virtblk.backend_addr == MAP_FAILED) {
-		mpsslog("%s: can't map: %s %s\n",
-			mic->name, mic->mic_virtblk.backend_file,
-			strerror(errno));
-		goto _error_close;
-	}
-	return true;
-
- _error_close:
-	close(mic->mic_virtblk.backend);
- _error_free:
-	free(mic->mic_virtblk.backend_file);
- _error_exit:
-	return false;
-}
-
-static void
-close_backend(struct mic_info *mic)
-{
-	munmap(mic->mic_virtblk.backend_addr, mic->mic_virtblk.backend_size);
-	close(mic->mic_virtblk.backend);
-	free(mic->mic_virtblk.backend_file);
-}
-
-static bool
-start_virtblk(struct mic_info *mic, struct mic_vring *vring)
-{
-	if (((unsigned long)&virtblk_dev_page.blk_config % 8) != 0) {
-		mpsslog("%s: blk_config is not 8 byte aligned.\n",
-			mic->name);
-		return false;
-	}
-	add_virtio_device(mic, &virtblk_dev_page.dd);
-	if (MAP_FAILED == init_vr(mic, mic->mic_virtblk.virtio_block_fd,
-				  VIRTIO_ID_BLOCK, vring, NULL,
-				  virtblk_dev_page.dd.num_vq)) {
-		mpsslog("%s init_vr failed %s\n",
-			mic->name, strerror(errno));
-		return false;
-	}
-	return true;
-}
-
-static void
-stop_virtblk(struct mic_info *mic)
-{
-	int vr_size, ret;
-
-	vr_size = PAGE_ALIGN(_vring_size(MIC_VRING_ENTRIES,
-					 MIC_VIRTIO_RING_ALIGN) +
-			     sizeof(struct _mic_vring_info));
-	ret = munmap(mic->mic_virtblk.block_dp,
-		MIC_DEVICE_PAGE_END + vr_size * virtblk_dev_page.dd.num_vq);
-	if (ret < 0)
-		mpsslog("%s munmap errno %d\n", mic->name, errno);
-	close(mic->mic_virtblk.virtio_block_fd);
-}
-
-static __u8
-header_error_check(struct vring_desc *desc)
-{
-	if (le32toh(desc->len) != sizeof(struct virtio_blk_outhdr)) {
-		mpsslog("%s() %d: length is not sizeof(virtio_blk_outhd)\n",
-			__func__, __LINE__);
-		return -EIO;
-	}
-	if (!(le16toh(desc->flags) & VRING_DESC_F_NEXT)) {
-		mpsslog("%s() %d: alone\n",
-			__func__, __LINE__);
-		return -EIO;
-	}
-	if (le16toh(desc->flags) & VRING_DESC_F_WRITE) {
-		mpsslog("%s() %d: not read\n",
-			__func__, __LINE__);
-		return -EIO;
-	}
-	return 0;
-}
-
-static int
-read_header(int fd, struct virtio_blk_outhdr *hdr, __u32 desc_idx)
-{
-	struct iovec iovec;
-	struct mic_copy_desc copy;
-
-	iovec.iov_len = sizeof(*hdr);
-	iovec.iov_base = hdr;
-	copy.iov = &iovec;
-	copy.iovcnt = 1;
-	copy.vr_idx = 0;  /* only one vring on virtio_block */
-	copy.update_used = false;  /* do not update used index */
-	return ioctl(fd, MIC_VIRTIO_COPY_DESC, &copy);
-}
-
-static int
-transfer_blocks(int fd, struct iovec *iovec, __u32 iovcnt)
-{
-	struct mic_copy_desc copy;
-
-	copy.iov = iovec;
-	copy.iovcnt = iovcnt;
-	copy.vr_idx = 0;  /* only one vring on virtio_block */
-	copy.update_used = false;  /* do not update used index */
-	return ioctl(fd, MIC_VIRTIO_COPY_DESC, &copy);
-}
-
-static __u8
-status_error_check(struct vring_desc *desc)
-{
-	if (le32toh(desc->len) != sizeof(__u8)) {
-		mpsslog("%s() %d: length is not sizeof(status)\n",
-			__func__, __LINE__);
-		return -EIO;
-	}
-	return 0;
-}
-
-static int
-write_status(int fd, __u8 *status)
-{
-	struct iovec iovec;
-	struct mic_copy_desc copy;
-
-	iovec.iov_base = status;
-	iovec.iov_len = sizeof(*status);
-	copy.iov = &iovec;
-	copy.iovcnt = 1;
-	copy.vr_idx = 0;  /* only one vring on virtio_block */
-	copy.update_used = true; /* Update used index */
-	return ioctl(fd, MIC_VIRTIO_COPY_DESC, &copy);
-}
-
-#ifndef VIRTIO_BLK_T_GET_ID
-#define VIRTIO_BLK_T_GET_ID    8
-#endif
-
-static void *
-virtio_block(void *arg)
-{
-	struct mic_info *mic = (struct mic_info *)arg;
-	int ret;
-	struct pollfd block_poll;
-	struct mic_vring vring;
-	__u16 avail_idx;
-	__u32 desc_idx;
-	struct vring_desc *desc;
-	struct iovec *iovec, *piov;
-	__u8 status;
-	__u32 buffer_desc_idx;
-	struct virtio_blk_outhdr hdr;
-	void *fos;
-
-	for (;;) {  /* forever */
-		if (!open_backend(mic)) { /* No virtblk */
-			for (mic->mic_virtblk.signaled = 0;
-				!mic->mic_virtblk.signaled;)
-				sleep(1);
-			continue;
-		}
-
-		/* backend file is specified. */
-		if (!start_virtblk(mic, &vring))
-			goto _close_backend;
-		iovec = malloc(sizeof(*iovec) *
-			le32toh(virtblk_dev_page.blk_config.seg_max));
-		if (!iovec) {
-			mpsslog("%s: can't alloc iovec: %s\n",
-				mic->name, strerror(ENOMEM));
-			goto _stop_virtblk;
-		}
-
-		block_poll.fd = mic->mic_virtblk.virtio_block_fd;
-		block_poll.events = POLLIN;
-		for (mic->mic_virtblk.signaled = 0;
-		     !mic->mic_virtblk.signaled;) {
-			block_poll.revents = 0;
-					/* timeout in 1 sec to see signaled */
-			ret = poll(&block_poll, 1, 1000);
-			if (ret < 0) {
-				mpsslog("%s %d: poll failed: %s\n",
-					__func__, __LINE__,
-					strerror(errno));
-				continue;
-			}
-
-			if (!(block_poll.revents & POLLIN)) {
-#ifdef DEBUG
-				mpsslog("%s %d: block_poll.revents=0x%x\n",
-					__func__, __LINE__, block_poll.revents);
-#endif
-				continue;
-			}
-
-			/* POLLIN */
-			while (vring.info->avail_idx !=
-				le16toh(vring.vr.avail->idx)) {
-				/* read header element */
-				avail_idx =
-					vring.info->avail_idx &
-					(vring.vr.num - 1);
-				desc_idx = le16toh(
-					vring.vr.avail->ring[avail_idx]);
-				desc = &vring.vr.desc[desc_idx];
-#ifdef DEBUG
-				mpsslog("%s() %d: avail_idx=%d ",
-					__func__, __LINE__,
-					vring.info->avail_idx);
-				mpsslog("vring.vr.num=%d desc=%p\n",
-					vring.vr.num, desc);
-#endif
-				status = header_error_check(desc);
-				ret = read_header(
-					mic->mic_virtblk.virtio_block_fd,
-					&hdr, desc_idx);
-				if (ret < 0) {
-					mpsslog("%s() %d %s: ret=%d %s\n",
-						__func__, __LINE__,
-						mic->name, ret,
-						strerror(errno));
-					break;
-				}
-				/* buffer element */
-				piov = iovec;
-				status = 0;
-				fos = mic->mic_virtblk.backend_addr +
-					(hdr.sector * SECTOR_SIZE);
-				buffer_desc_idx = next_desc(desc);
-				desc_idx = buffer_desc_idx;
-				for (desc = &vring.vr.desc[buffer_desc_idx];
-				     desc->flags & VRING_DESC_F_NEXT;
-				     desc_idx = next_desc(desc),
-					     desc = &vring.vr.desc[desc_idx]) {
-					piov->iov_len = desc->len;
-					piov->iov_base = fos;
-					piov++;
-					fos += desc->len;
-				}
-				/* Returning NULLs for VIRTIO_BLK_T_GET_ID. */
-				if (hdr.type & ~(VIRTIO_BLK_T_OUT |
-					VIRTIO_BLK_T_GET_ID)) {
-					/*
-					  VIRTIO_BLK_T_IN - does not do
-					  anything. Probably for documenting.
-					  VIRTIO_BLK_T_SCSI_CMD - for
-					  virtio_scsi.
-					  VIRTIO_BLK_T_FLUSH - turned off in
-					  config space.
-					  VIRTIO_BLK_T_BARRIER - defined but not
-					  used in anywhere.
-					*/
-					mpsslog("%s() %d: type %x ",
-						__func__, __LINE__,
-						hdr.type);
-					mpsslog("is not supported\n");
-					status = -ENOTSUP;
-
-				} else {
-					ret = transfer_blocks(
-					mic->mic_virtblk.virtio_block_fd,
-						iovec,
-						piov - iovec);
-					if (ret < 0 &&
-					    status != 0)
-						status = ret;
-				}
-				/* write status and update used pointer */
-				if (status != 0)
-					status = status_error_check(desc);
-				ret = write_status(
-					mic->mic_virtblk.virtio_block_fd,
-					&status);
-#ifdef DEBUG
-				mpsslog("%s() %d: write status=%d on desc=%p\n",
-					__func__, __LINE__,
-					status, desc);
-#endif
-			}
-		}
-		free(iovec);
-_stop_virtblk:
-		stop_virtblk(mic);
-_close_backend:
-		close_backend(mic);
-	}  /* forever */
-
-	pthread_exit(NULL);
-}
-
-static void
-reset(struct mic_info *mic)
-{
-#define RESET_TIMEOUT 120
-	int i = RESET_TIMEOUT;
-	setsysfs(mic->name, "state", "reset");
-	while (i) {
-		char *state;
-		state = readsysfs(mic->name, "state");
-		if (!state)
-			goto retry;
-		mpsslog("%s: %s %d state %s\n",
-			mic->name, __func__, __LINE__, state);
-
-		if (!strcmp(state, "ready")) {
-			free(state);
-			break;
-		}
-		free(state);
-retry:
-		sleep(1);
-		i--;
-	}
-}
-
-static int
-get_mic_shutdown_status(struct mic_info *mic, char *shutdown_status)
-{
-	if (!strcmp(shutdown_status, "nop"))
-		return MIC_NOP;
-	if (!strcmp(shutdown_status, "crashed"))
-		return MIC_CRASHED;
-	if (!strcmp(shutdown_status, "halted"))
-		return MIC_HALTED;
-	if (!strcmp(shutdown_status, "poweroff"))
-		return MIC_POWER_OFF;
-	if (!strcmp(shutdown_status, "restart"))
-		return MIC_RESTART;
-	mpsslog("%s: BUG invalid status %s\n", mic->name, shutdown_status);
-	/* Invalid state */
-	assert(0);
-};
-
-static int get_mic_state(struct mic_info *mic)
-{
-	char *state = NULL;
-	enum mic_states mic_state;
-
-	while (!state) {
-		state = readsysfs(mic->name, "state");
-		sleep(1);
-	}
-	mpsslog("%s: %s %d state %s\n",
-		mic->name, __func__, __LINE__, state);
-
-	if (!strcmp(state, "ready")) {
-		mic_state = MIC_READY;
-	} else if (!strcmp(state, "booting")) {
-		mic_state = MIC_BOOTING;
-	} else if (!strcmp(state, "online")) {
-		mic_state = MIC_ONLINE;
-	} else if (!strcmp(state, "shutting_down")) {
-		mic_state = MIC_SHUTTING_DOWN;
-	} else if (!strcmp(state, "reset_failed")) {
-		mic_state = MIC_RESET_FAILED;
-	} else if (!strcmp(state, "resetting")) {
-		mic_state = MIC_RESETTING;
-	} else {
-		mpsslog("%s: BUG invalid state %s\n", mic->name, state);
-		assert(0);
-	}
-
-	free(state);
-	return mic_state;
-};
-
-static void mic_handle_shutdown(struct mic_info *mic)
-{
-#define SHUTDOWN_TIMEOUT 60
-	int i = SHUTDOWN_TIMEOUT;
-	char *shutdown_status;
-	while (i) {
-		shutdown_status = readsysfs(mic->name, "shutdown_status");
-		if (!shutdown_status) {
-			sleep(1);
-			continue;
-		}
-		mpsslog("%s: %s %d shutdown_status %s\n",
-			mic->name, __func__, __LINE__, shutdown_status);
-		switch (get_mic_shutdown_status(mic, shutdown_status)) {
-		case MIC_RESTART:
-			mic->restart = 1;
-		case MIC_HALTED:
-		case MIC_POWER_OFF:
-		case MIC_CRASHED:
-			free(shutdown_status);
-			goto reset;
-		default:
-			break;
-		}
-		free(shutdown_status);
-		sleep(1);
-		i--;
-	}
-reset:
-	if (!i)
-		mpsslog("%s: %s %d timing out waiting for shutdown_status %s\n",
-			mic->name, __func__, __LINE__, shutdown_status);
-	reset(mic);
-}
-
-static int open_state_fd(struct mic_info *mic)
-{
-	char pathname[PATH_MAX];
-	int fd;
-
-	snprintf(pathname, PATH_MAX - 1, "%s/%s/%s",
-		 MICSYSFSDIR, mic->name, "state");
-
-	fd = open(pathname, O_RDONLY);
-	if (fd < 0)
-		mpsslog("%s: opening file %s failed %s\n",
-			mic->name, pathname, strerror(errno));
-	return fd;
-}
-
-static int block_till_state_change(int fd, struct mic_info *mic)
-{
-	struct pollfd ufds[1];
-	char value[PAGE_SIZE];
-	int ret;
-
-	ufds[0].fd = fd;
-	ufds[0].events = POLLERR | POLLPRI;
-	ret = poll(ufds, 1, -1);
-	if (ret < 0) {
-		mpsslog("%s: %s %d poll failed %s\n",
-			mic->name, __func__, __LINE__, strerror(errno));
-		return ret;
-	}
-
-	ret = lseek(fd, 0, SEEK_SET);
-	if (ret < 0) {
-		mpsslog("%s: %s %d Failed to seek to 0: %s\n",
-			mic->name, __func__, __LINE__, strerror(errno));
-		return ret;
-	}
-
-	ret = read(fd, value, sizeof(value));
-	if (ret < 0) {
-		mpsslog("%s: %s %d Failed to read sysfs entry: %s\n",
-			mic->name, __func__, __LINE__, strerror(errno));
-		return ret;
-	}
-
-	return 0;
-}
-
-static void *
-mic_config(void *arg)
-{
-	struct mic_info *mic = (struct mic_info *)arg;
-	int fd, ret, stat = 0;
-
-	fd = open_state_fd(mic);
-	if (fd < 0) {
-		mpsslog("%s: %s %d open state fd failed %s\n",
-			mic->name, __func__, __LINE__, strerror(errno));
-		goto exit;
-	}
-
-	do {
-		ret = block_till_state_change(fd, mic);
-		if (ret < 0) {
-			mpsslog("%s: %s %d block_till_state_change error %s\n",
-				mic->name, __func__, __LINE__, strerror(errno));
-			goto close_exit;
-		}
-
-		switch (get_mic_state(mic)) {
-		case MIC_SHUTTING_DOWN:
-			mic_handle_shutdown(mic);
-			break;
-		case MIC_READY:
-		case MIC_RESET_FAILED:
-			ret = kill(mic->pid, SIGTERM);
-			mpsslog("%s: %s %d kill pid %d ret %d\n",
-				mic->name, __func__, __LINE__,
-				mic->pid, ret);
-			if (!ret) {
-				ret = waitpid(mic->pid, &stat,
-					      WIFSIGNALED(stat));
-				mpsslog("%s: %s %d waitpid ret %d pid %d\n",
-					mic->name, __func__, __LINE__,
-					ret, mic->pid);
-			}
-			if (mic->boot_on_resume) {
-				setsysfs(mic->name, "state", "boot");
-				mic->boot_on_resume = 0;
-			}
-			goto close_exit;
-		default:
-			break;
-		}
-	} while (1);
-
-close_exit:
-	close(fd);
-exit:
-	init_mic(mic);
-	pthread_exit(NULL);
-}
-
-static void
-set_cmdline(struct mic_info *mic)
-{
-	char buffer[PATH_MAX];
-	int len;
-
-	len = snprintf(buffer, PATH_MAX,
-		"clocksource=tsc highres=off nohz=off ");
-	len += snprintf(buffer + len, PATH_MAX,
-		"cpufreq_on;corec6_off;pc3_off;pc6_off ");
-	len += snprintf(buffer + len, PATH_MAX,
-		"ifcfg=static;address,172.31.%d.1;netmask,255.255.255.0",
-		mic->id + 1);
-
-	setsysfs(mic->name, "cmdline", buffer);
-	mpsslog("%s: Command line: \"%s\"\n", mic->name, buffer);
-	snprintf(buffer, PATH_MAX, "172.31.%d.1", mic->id + 1);
-	mpsslog("%s: IPADDR: \"%s\"\n", mic->name, buffer);
-}
-
-static void
-set_log_buf_info(struct mic_info *mic)
-{
-	int fd;
-	off_t len;
-	char system_map[] = "/lib/firmware/mic/System.map";
-	char *map, *temp, log_buf[17] = {'\0'};
-
-	fd = open(system_map, O_RDONLY);
-	if (fd < 0) {
-		mpsslog("%s: Opening System.map failed: %d\n",
-			mic->name, errno);
-		return;
-	}
-	len = lseek(fd, 0, SEEK_END);
-	if (len < 0) {
-		mpsslog("%s: Reading System.map size failed: %d\n",
-			mic->name, errno);
-		close(fd);
-		return;
-	}
-	map = mmap(NULL, len, PROT_READ, MAP_PRIVATE, fd, 0);
-	if (map == MAP_FAILED) {
-		mpsslog("%s: mmap of System.map failed: %d\n",
-			mic->name, errno);
-		close(fd);
-		return;
-	}
-	temp = strstr(map, "__log_buf");
-	if (!temp) {
-		mpsslog("%s: __log_buf not found: %d\n", mic->name, errno);
-		munmap(map, len);
-		close(fd);
-		return;
-	}
-	strncpy(log_buf, temp - 19, 16);
-	setsysfs(mic->name, "log_buf_addr", log_buf);
-	mpsslog("%s: log_buf_addr: %s\n", mic->name, log_buf);
-	temp = strstr(map, "log_buf_len");
-	if (!temp) {
-		mpsslog("%s: log_buf_len not found: %d\n", mic->name, errno);
-		munmap(map, len);
-		close(fd);
-		return;
-	}
-	strncpy(log_buf, temp - 19, 16);
-	setsysfs(mic->name, "log_buf_len", log_buf);
-	mpsslog("%s: log_buf_len: %s\n", mic->name, log_buf);
-	munmap(map, len);
-	close(fd);
-}
-
-static void
-change_virtblk_backend(int x, siginfo_t *siginfo, void *p)
-{
-	struct mic_info *mic;
-
-	for (mic = mic_list.next; mic != NULL; mic = mic->next)
-		mic->mic_virtblk.signaled = 1/* true */;
-}
-
-static void
-set_mic_boot_params(struct mic_info *mic)
-{
-	set_log_buf_info(mic);
-	set_cmdline(mic);
-}
-
-static void *
-init_mic(void *arg)
-{
-	struct mic_info *mic = (struct mic_info *)arg;
-	struct sigaction ignore = {
-		.sa_flags = 0,
-		.sa_handler = SIG_IGN
-	};
-	struct sigaction act = {
-		.sa_flags = SA_SIGINFO,
-		.sa_sigaction = change_virtblk_backend,
-	};
-	char buffer[PATH_MAX];
-	int err, fd;
-
-	/*
-	 * Currently, one virtio block device is supported for each MIC card
-	 * at a time. Any user (or test) can send a SIGUSR1 to the MIC daemon.
-	 * The signal informs the virtio block backend about a change in the
-	 * configuration file which specifies the virtio backend file name on
-	 * the host. Virtio block backend then re-reads the configuration file
-	 * and switches to the new block device. This signalling mechanism may
-	 * not be required once multiple virtio block devices are supported by
-	 * the MIC daemon.
-	 */
-	sigaction(SIGUSR1, &ignore, NULL);
-retry:
-	fd = open_state_fd(mic);
-	if (fd < 0) {
-		mpsslog("%s: %s %d open state fd failed %s\n",
-			mic->name, __func__, __LINE__, strerror(errno));
-		sleep(2);
-		goto retry;
-	}
-
-	if (mic->restart) {
-		snprintf(buffer, PATH_MAX, "boot");
-		setsysfs(mic->name, "state", buffer);
-		mpsslog("%s restarting mic %d\n",
-			mic->name, mic->restart);
-		mic->restart = 0;
-	}
-
-	while (1) {
-		while (block_till_state_change(fd, mic)) {
-			mpsslog("%s: %s %d block_till_state_change error %s\n",
-				mic->name, __func__, __LINE__, strerror(errno));
-			sleep(2);
-			continue;
-		}
-
-		if (get_mic_state(mic) == MIC_BOOTING)
-			break;
-	}
-
-	mic->pid = fork();
-	switch (mic->pid) {
-	case 0:
-		add_virtio_device(mic, &virtcons_dev_page.dd);
-		add_virtio_device(mic, &virtnet_dev_page.dd);
-		err = pthread_create(&mic->mic_console.console_thread, NULL,
-			virtio_console, mic);
-		if (err)
-			mpsslog("%s virtcons pthread_create failed %s\n",
-				mic->name, strerror(err));
-		err = pthread_create(&mic->mic_net.net_thread, NULL,
-			virtio_net, mic);
-		if (err)
-			mpsslog("%s virtnet pthread_create failed %s\n",
-				mic->name, strerror(err));
-		err = pthread_create(&mic->mic_virtblk.block_thread, NULL,
-			virtio_block, mic);
-		if (err)
-			mpsslog("%s virtblk pthread_create failed %s\n",
-				mic->name, strerror(err));
-		sigemptyset(&act.sa_mask);
-		err = sigaction(SIGUSR1, &act, NULL);
-		if (err)
-			mpsslog("%s sigaction SIGUSR1 failed %s\n",
-				mic->name, strerror(errno));
-		while (1)
-			sleep(60);
-	case -1:
-		mpsslog("fork failed MIC name %s id %d errno %d\n",
-			mic->name, mic->id, errno);
-		break;
-	default:
-		err = pthread_create(&mic->config_thread, NULL,
-				     mic_config, mic);
-		if (err)
-			mpsslog("%s mic_config pthread_create failed %s\n",
-				mic->name, strerror(err));
-	}
-
-	return NULL;
-}
-
-static void
-start_daemon(void)
-{
-	struct mic_info *mic;
-	int err;
-
-	for (mic = mic_list.next; mic; mic = mic->next) {
-		set_mic_boot_params(mic);
-		err = pthread_create(&mic->init_thread, NULL, init_mic, mic);
-		if (err)
-			mpsslog("%s init_mic pthread_create failed %s\n",
-				mic->name, strerror(err));
-	}
-
-	while (1)
-		sleep(60);
-}
-
-static int
-init_mic_list(void)
-{
-	struct mic_info *mic = &mic_list;
-	struct dirent *file;
-	DIR *dp;
-	int cnt = 0;
-
-	dp = opendir(MICSYSFSDIR);
-	if (!dp)
-		return 0;
-
-	while ((file = readdir(dp)) != NULL) {
-		if (!strncmp(file->d_name, "mic", 3)) {
-			mic->next = calloc(1, sizeof(struct mic_info));
-			if (mic->next) {
-				mic = mic->next;
-				mic->id = atoi(&file->d_name[3]);
-				mic->name = malloc(strlen(file->d_name) + 16);
-				if (mic->name)
-					strcpy(mic->name, file->d_name);
-				mpsslog("MIC name %s id %d\n", mic->name,
-					mic->id);
-				cnt++;
-			}
-		}
-	}
-
-	closedir(dp);
-	return cnt;
-}
-
-void
-mpsslog(char *format, ...)
-{
-	va_list args;
-	char buffer[4096];
-	char ts[52], *ts1;
-	time_t t;
-
-	if (logfp == NULL)
-		return;
-
-	va_start(args, format);
-	vsprintf(buffer, format, args);
-	va_end(args);
-
-	time(&t);
-	ts1 = ctime_r(&t, ts);
-	ts1[strlen(ts1) - 1] = '\0';
-	fprintf(logfp, "%s: %s", ts1, buffer);
-
-	fflush(logfp);
-}
-
-int
-main(int argc, char *argv[])
-{
-	int cnt;
-	pid_t pid;
-
-	myname = argv[0];
-
-	logfp = fopen(LOGFILE_NAME, "a+");
-	if (!logfp) {
-		fprintf(stderr, "cannot open logfile '%s'\n", LOGFILE_NAME);
-		exit(1);
-	}
-	pid = fork();
-	switch (pid) {
-	case 0:
-		break;
-	case -1:
-		exit(2);
-	default:
-		exit(0);
-	}
-
-	mpsslog("MIC Daemon start\n");
-
-	cnt = init_mic_list();
-	if (cnt == 0) {
-		mpsslog("MIC module not loaded\n");
-		exit(3);
-	}
-	mpsslog("MIC found %d devices\n", cnt);
-
-	start_daemon();
-
-	exit(0);
-}
diff -druNp --no-dereference linux-libre-4.4-gnu/Documentation/mic/mpssd/mpssd.h linux-libre-4.4.107-gnu/Documentation/mic/mpssd/mpssd.h
--- linux-libre-4.4-gnu/Documentation/mic/mpssd/mpssd.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/Documentation/mic/mpssd/mpssd.h	1969-12-31 19:00:00.000000000 -0500
@@ -1,103 +0,0 @@
-/*
- * Intel MIC Platform Software Stack (MPSS)
- *
- * Copyright(c) 2013 Intel Corporation.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License, version 2, as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * The full GNU General Public License is included in this distribution in
- * the file called "COPYING".
- *
- * Intel MIC User Space Tools.
- */
-#ifndef _MPSSD_H_
-#define _MPSSD_H_
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <fcntl.h>
-#include <unistd.h>
-#include <dirent.h>
-#include <libgen.h>
-#include <pthread.h>
-#include <stdarg.h>
-#include <time.h>
-#include <errno.h>
-#include <sys/dir.h>
-#include <sys/ioctl.h>
-#include <sys/poll.h>
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <sys/stat.h>
-#include <sys/types.h>
-#include <sys/mman.h>
-#include <sys/utsname.h>
-#include <sys/wait.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
-#include <netdb.h>
-#include <pthread.h>
-#include <signal.h>
-#include <limits.h>
-#include <syslog.h>
-#include <getopt.h>
-#include <net/if.h>
-#include <linux/if_tun.h>
-#include <linux/if_tun.h>
-#include <linux/virtio_ids.h>
-
-#define MICSYSFSDIR "/sys/class/mic"
-#define LOGFILE_NAME "/var/log/mpssd"
-#define PAGE_SIZE 4096
-
-struct mic_console_info {
-	pthread_t       console_thread;
-	int		virtio_console_fd;
-	void		*console_dp;
-};
-
-struct mic_net_info {
-	pthread_t       net_thread;
-	int		virtio_net_fd;
-	int		tap_fd;
-	void		*net_dp;
-};
-
-struct mic_virtblk_info {
-	pthread_t       block_thread;
-	int		virtio_block_fd;
-	void		*block_dp;
-	volatile sig_atomic_t	signaled;
-	char		*backend_file;
-	int		backend;
-	void		*backend_addr;
-	long		backend_size;
-};
-
-struct mic_info {
-	int		id;
-	char		*name;
-	pthread_t       config_thread;
-	pthread_t       init_thread;
-	pid_t		pid;
-	struct mic_console_info	mic_console;
-	struct mic_net_info	mic_net;
-	struct mic_virtblk_info	mic_virtblk;
-	int		restart;
-	int		boot_on_resume;
-	struct mic_info *next;
-};
-
-__attribute__((format(printf, 1, 2)))
-void mpsslog(char *format, ...);
-char *readsysfs(char *dir, char *entry);
-int setsysfs(char *dir, char *entry, char *value);
-#endif
diff -druNp --no-dereference linux-libre-4.4-gnu/Documentation/mic/mpssd/sysfs.c linux-libre-4.4.107-gnu/Documentation/mic/mpssd/sysfs.c
--- linux-libre-4.4-gnu/Documentation/mic/mpssd/sysfs.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/Documentation/mic/mpssd/sysfs.c	1969-12-31 19:00:00.000000000 -0500
@@ -1,102 +0,0 @@
-/*
- * Intel MIC Platform Software Stack (MPSS)
- *
- * Copyright(c) 2013 Intel Corporation.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License, version 2, as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * The full GNU General Public License is included in this distribution in
- * the file called "COPYING".
- *
- * Intel MIC User Space Tools.
- */
-
-#include "mpssd.h"
-
-#define PAGE_SIZE 4096
-
-char *
-readsysfs(char *dir, char *entry)
-{
-	char filename[PATH_MAX];
-	char value[PAGE_SIZE];
-	char *string = NULL;
-	int fd;
-	int len;
-
-	if (dir == NULL)
-		snprintf(filename, PATH_MAX, "%s/%s", MICSYSFSDIR, entry);
-	else
-		snprintf(filename, PATH_MAX,
-			 "%s/%s/%s", MICSYSFSDIR, dir, entry);
-
-	fd = open(filename, O_RDONLY);
-	if (fd < 0) {
-		mpsslog("Failed to open sysfs entry '%s': %s\n",
-			filename, strerror(errno));
-		return NULL;
-	}
-
-	len = read(fd, value, sizeof(value));
-	if (len < 0) {
-		mpsslog("Failed to read sysfs entry '%s': %s\n",
-			filename, strerror(errno));
-		goto readsys_ret;
-	}
-	if (len == 0)
-		goto readsys_ret;
-
-	value[len - 1] = '\0';
-
-	string = malloc(strlen(value) + 1);
-	if (string)
-		strcpy(string, value);
-
-readsys_ret:
-	close(fd);
-	return string;
-}
-
-int
-setsysfs(char *dir, char *entry, char *value)
-{
-	char filename[PATH_MAX];
-	char *oldvalue;
-	int fd, ret = 0;
-
-	if (dir == NULL)
-		snprintf(filename, PATH_MAX, "%s/%s", MICSYSFSDIR, entry);
-	else
-		snprintf(filename, PATH_MAX, "%s/%s/%s",
-			 MICSYSFSDIR, dir, entry);
-
-	oldvalue = readsysfs(dir, entry);
-
-	fd = open(filename, O_RDWR);
-	if (fd < 0) {
-		ret = errno;
-		mpsslog("Failed to open sysfs entry '%s': %s\n",
-			filename, strerror(errno));
-		goto done;
-	}
-
-	if (!oldvalue || strcmp(value, oldvalue)) {
-		if (write(fd, value, strlen(value)) < 0) {
-			ret = errno;
-			mpsslog("Failed to write new sysfs entry '%s': %s\n",
-				filename, strerror(errno));
-		}
-	}
-	close(fd);
-done:
-	if (oldvalue)
-		free(oldvalue);
-	return ret;
-}
diff -druNp --no-dereference linux-libre-4.4-gnu/Documentation/module-signing.txt linux-libre-4.4.107-gnu/Documentation/module-signing.txt
--- linux-libre-4.4-gnu/Documentation/module-signing.txt	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/Documentation/module-signing.txt	2017-12-20 04:05:01.000000000 -0500
@@ -271,3 +271,9 @@ Since the private key is used to sign mo
 the private key to sign modules and compromise the operating system.  The
 private key must be either destroyed or moved to a secure location and not kept
 in the root node of the kernel source tree.
+
+If you use the same private key to sign modules for multiple kernel
+configurations, you must ensure that the module version information is
+sufficient to prevent loading a module into a different kernel.  Either
+set CONFIG_MODVERSIONS=y or ensure that each configuration has a different
+kernel release string by changing EXTRAVERSION or CONFIG_LOCALVERSION.
diff -druNp --no-dereference linux-libre-4.4-gnu/Documentation/networking/netlink_mmap.txt linux-libre-4.4.107-gnu/Documentation/networking/netlink_mmap.txt
--- linux-libre-4.4-gnu/Documentation/networking/netlink_mmap.txt	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/Documentation/networking/netlink_mmap.txt	1969-12-31 19:00:00.000000000 -0500
@@ -1,332 +0,0 @@
-This file documents how to use memory mapped I/O with netlink.
-
-Author: Patrick McHardy <kaber@trash.net>
-
-Overview
---------
-
-Memory mapped netlink I/O can be used to increase throughput and decrease
-overhead of unicast receive and transmit operations. Some netlink subsystems
-require high throughput, these are mainly the netfilter subsystems
-nfnetlink_queue and nfnetlink_log, but it can also help speed up large
-dump operations of f.i. the routing database.
-
-Memory mapped netlink I/O used two circular ring buffers for RX and TX which
-are mapped into the processes address space.
-
-The RX ring is used by the kernel to directly construct netlink messages into
-user-space memory without copying them as done with regular socket I/O,
-additionally as long as the ring contains messages no recvmsg() or poll()
-syscalls have to be issued by user-space to get more message.
-
-The TX ring is used to process messages directly from user-space memory, the
-kernel processes all messages contained in the ring using a single sendmsg()
-call.
-
-Usage overview
---------------
-
-In order to use memory mapped netlink I/O, user-space needs three main changes:
-
-- ring setup
-- conversion of the RX path to get messages from the ring instead of recvmsg()
-- conversion of the TX path to construct messages into the ring
-
-Ring setup is done using setsockopt() to provide the ring parameters to the
-kernel, then a call to mmap() to map the ring into the processes address space:
-
-- setsockopt(fd, SOL_NETLINK, NETLINK_RX_RING, &params, sizeof(params));
-- setsockopt(fd, SOL_NETLINK, NETLINK_TX_RING, &params, sizeof(params));
-- ring = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0)
-
-Usage of either ring is optional, but even if only the RX ring is used the
-mapping still needs to be writable in order to update the frame status after
-processing.
-
-Conversion of the reception path involves calling poll() on the file
-descriptor, once the socket is readable the frames from the ring are
-processed in order until no more messages are available, as indicated by
-a status word in the frame header.
-
-On kernel side, in order to make use of memory mapped I/O on receive, the
-originating netlink subsystem needs to support memory mapped I/O, otherwise
-it will use an allocated socket buffer as usual and the contents will be
- copied to the ring on transmission, nullifying most of the performance gains.
-Dumps of kernel databases automatically support memory mapped I/O.
-
-Conversion of the transmit path involves changing message construction to
-use memory from the TX ring instead of (usually) a buffer declared on the
-stack and setting up the frame header appropriately. Optionally poll() can
-be used to wait for free frames in the TX ring.
-
-Structured and definitions for using memory mapped I/O are contained in
-<linux/netlink.h>.
-
-RX and TX rings
-----------------
-
-Each ring contains a number of continuous memory blocks, containing frames of
-fixed size dependent on the parameters used for ring setup.
-
-Ring:	[ block 0 ]
-		[ frame 0 ]
-		[ frame 1 ]
-	[ block 1 ]
-		[ frame 2 ]
-		[ frame 3 ]
-	...
-	[ block n ]
-		[ frame 2 * n ]
-		[ frame 2 * n + 1 ]
-
-The blocks are only visible to the kernel, from the point of view of user-space
-the ring just contains the frames in a continuous memory zone.
-
-The ring parameters used for setting up the ring are defined as follows:
-
-struct nl_mmap_req {
-	unsigned int	nm_block_size;
-	unsigned int	nm_block_nr;
-	unsigned int	nm_frame_size;
-	unsigned int	nm_frame_nr;
-};
-
-Frames are grouped into blocks, where each block is a continuous region of memory
-and holds nm_block_size / nm_frame_size frames. The total number of frames in
-the ring is nm_frame_nr. The following invariants hold:
-
-- frames_per_block = nm_block_size / nm_frame_size
-
-- nm_frame_nr = frames_per_block * nm_block_nr
-
-Some parameters are constrained, specifically:
-
-- nm_block_size must be a multiple of the architectures memory page size.
-  The getpagesize() function can be used to get the page size.
-
-- nm_frame_size must be equal or larger to NL_MMAP_HDRLEN, IOW a frame must be
-  able to hold at least the frame header
-
-- nm_frame_size must be smaller or equal to nm_block_size
-
-- nm_frame_size must be a multiple of NL_MMAP_MSG_ALIGNMENT
-
-- nm_frame_nr must equal the actual number of frames as specified above.
-
-When the kernel can't allocate physically continuous memory for a ring block,
-it will fall back to use physically discontinuous memory. This might affect
-performance negatively, in order to avoid this the nm_frame_size parameter
-should be chosen to be as small as possible for the required frame size and
-the number of blocks should be increased instead.
-
-Ring frames
-------------
-
-Each frames contain a frame header, consisting of a synchronization word and some
-meta-data, and the message itself.
-
-Frame:	[ header message ]
-
-The frame header is defined as follows:
-
-struct nl_mmap_hdr {
-	unsigned int	nm_status;
-	unsigned int	nm_len;
-	__u32		nm_group;
-	/* credentials */
-	__u32		nm_pid;
-	__u32		nm_uid;
-	__u32		nm_gid;
-};
-
-- nm_status is used for synchronizing processing between the kernel and user-
-  space and specifies ownership of the frame as well as the operation to perform
-
-- nm_len contains the length of the message contained in the data area
-
-- nm_group specified the destination multicast group of message
-
-- nm_pid, nm_uid and nm_gid contain the netlink pid, UID and GID of the sending
-  process. These values correspond to the data available using SOCK_PASSCRED in
-  the SCM_CREDENTIALS cmsg.
-
-The possible values in the status word are:
-
-- NL_MMAP_STATUS_UNUSED:
-	RX ring:	frame belongs to the kernel and contains no message
-			for user-space. Approriate action is to invoke poll()
-			to wait for new messages.
-
-	TX ring:	frame belongs to user-space and can be used for
-			message construction.
-
-- NL_MMAP_STATUS_RESERVED:
-	RX ring only:	frame is currently used by the kernel for message
-			construction and contains no valid message yet.
-			Appropriate action is to invoke poll() to wait for
-			new messages.
-
-- NL_MMAP_STATUS_VALID:
-	RX ring:	frame contains a valid message. Approriate action is
-			to process the message and release the frame back to
-			the kernel by setting the status to
-			NL_MMAP_STATUS_UNUSED or queue the frame by setting the
-			status to NL_MMAP_STATUS_SKIP.
-
-	TX ring:	the frame contains a valid message from user-space to
-			be processed by the kernel. After completing processing
-			the kernel will release the frame back to user-space by
-			setting the status to NL_MMAP_STATUS_UNUSED.
-
-- NL_MMAP_STATUS_COPY:
-	RX ring only:	a message is ready to be processed but could not be
-			stored in the ring, either because it exceeded the
-			frame size or because the originating subsystem does
-			not support memory mapped I/O. Appropriate action is
-			to invoke recvmsg() to receive the message and release
-			the frame back to the kernel by setting the status to
-			NL_MMAP_STATUS_UNUSED.
-
-- NL_MMAP_STATUS_SKIP:
-	RX ring only:	user-space queued the message for later processing, but
-			processed some messages following it in the ring. The
-			kernel should skip this frame when looking for unused
-			frames.
-
-The data area of a frame begins at a offset of NL_MMAP_HDRLEN relative to the
-frame header.
-
-TX limitations
---------------
-
-As of Jan 2015 the message is always copied from the ring frame to an
-allocated buffer due to unresolved security concerns.
-See commit 4682a0358639b29cf ("netlink: Always copy on mmap TX.").
-
-Example
--------
-
-Ring setup:
-
-	unsigned int block_size = 16 * getpagesize();
-	struct nl_mmap_req req = {
-		.nm_block_size		= block_size,
-		.nm_block_nr		= 64,
-		.nm_frame_size		= 16384,
-		.nm_frame_nr		= 64 * block_size / 16384,
-	};
-	unsigned int ring_size;
-	void *rx_ring, *tx_ring;
-
-	/* Configure ring parameters */
-	if (setsockopt(fd, SOL_NETLINK, NETLINK_RX_RING, &req, sizeof(req)) < 0)
-		exit(1);
-	if (setsockopt(fd, SOL_NETLINK, NETLINK_TX_RING, &req, sizeof(req)) < 0)
-		exit(1)
-
-	/* Calculate size of each individual ring */
-	ring_size = req.nm_block_nr * req.nm_block_size;
-
-	/* Map RX/TX rings. The TX ring is located after the RX ring */
-	rx_ring = mmap(NULL, 2 * ring_size, PROT_READ | PROT_WRITE,
-		       MAP_SHARED, fd, 0);
-	if ((long)rx_ring == -1L)
-		exit(1);
-	tx_ring = rx_ring + ring_size:
-
-Message reception:
-
-This example assumes some ring parameters of the ring setup are available.
-
-	unsigned int frame_offset = 0;
-	struct nl_mmap_hdr *hdr;
-	struct nlmsghdr *nlh;
-	unsigned char buf[16384];
-	ssize_t len;
-
-	while (1) {
-		struct pollfd pfds[1];
-
-		pfds[0].fd	= fd;
-		pfds[0].events	= POLLIN | POLLERR;
-		pfds[0].revents	= 0;
-
-		if (poll(pfds, 1, -1) < 0 && errno != -EINTR)
-			exit(1);
-
-		/* Check for errors. Error handling omitted */
-		if (pfds[0].revents & POLLERR)
-			<handle error>
-
-		/* If no new messages, poll again */
-		if (!(pfds[0].revents & POLLIN))
-			continue;
-
-		/* Process all frames */
-		while (1) {
-			/* Get next frame header */
-			hdr = rx_ring + frame_offset;
-
-			if (hdr->nm_status == NL_MMAP_STATUS_VALID) {
-				/* Regular memory mapped frame */
-				nlh = (void *)hdr + NL_MMAP_HDRLEN;
-				len = hdr->nm_len;
-
-				/* Release empty message immediately. May happen
-				 * on error during message construction.
-				 */
-				if (len == 0)
-					goto release;
-			} else if (hdr->nm_status == NL_MMAP_STATUS_COPY) {
-				/* Frame queued to socket receive queue */
-				len = recv(fd, buf, sizeof(buf), MSG_DONTWAIT);
-				if (len <= 0)
-					break;
-				nlh = buf;
-			} else
-				/* No more messages to process, continue polling */
-				break;
-
-			process_msg(nlh);
-release:
-			/* Release frame back to the kernel */
-			hdr->nm_status = NL_MMAP_STATUS_UNUSED;
-
-			/* Advance frame offset to next frame */
-			frame_offset = (frame_offset + frame_size) % ring_size;
-		}
-	}
-
-Message transmission:
-
-This example assumes some ring parameters of the ring setup are available.
-A single message is constructed and transmitted, to send multiple messages
-at once they would be constructed in consecutive frames before a final call
-to sendto().
-
-	unsigned int frame_offset = 0;
-	struct nl_mmap_hdr *hdr;
-	struct nlmsghdr *nlh;
-	struct sockaddr_nl addr = {
-		.nl_family	= AF_NETLINK,
-	};
-
-	hdr = tx_ring + frame_offset;
-	if (hdr->nm_status != NL_MMAP_STATUS_UNUSED)
-		/* No frame available. Use poll() to avoid. */
-		exit(1);
-
-	nlh = (void *)hdr + NL_MMAP_HDRLEN;
-
-	/* Build message */
-	build_message(nlh);
-
-	/* Fill frame header: length and status need to be set */
-	hdr->nm_len	= nlh->nlmsg_len;
-	hdr->nm_status	= NL_MMAP_STATUS_VALID;
-
-	if (sendto(fd, NULL, 0, 0, &addr, sizeof(addr)) < 0)
-		exit(1);
-
-	/* Advance frame offset to next frame */
-	frame_offset = (frame_offset + frame_size) % ring_size;
diff -druNp --no-dereference linux-libre-4.4-gnu/Documentation/pinctrl.txt linux-libre-4.4.107-gnu/Documentation/pinctrl.txt
--- linux-libre-4.4-gnu/Documentation/pinctrl.txt	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/Documentation/pinctrl.txt	2017-12-20 04:05:01.000000000 -0500
@@ -831,7 +831,7 @@ separate memory range only intended for
 range dealing with pin config and pin multiplexing get placed into a
 different memory range and a separate section of the data sheet.
 
-A flag "strict" in struct pinctrl_desc is available to check and deny
+A flag "strict" in struct pinmux_ops is available to check and deny
 simultaneous access to the same pin from GPIO and pin multiplexing
 consumers on hardware of this type. The pinctrl driver should set this flag
 accordingly.
diff -druNp --no-dereference linux-libre-4.4-gnu/Documentation/scsi/scsi_eh.txt linux-libre-4.4.107-gnu/Documentation/scsi/scsi_eh.txt
--- linux-libre-4.4-gnu/Documentation/scsi/scsi_eh.txt	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/Documentation/scsi/scsi_eh.txt	2017-12-20 04:05:01.000000000 -0500
@@ -263,19 +263,23 @@ scmd->allowed.
 
  3. scmd recovered
     ACTION: scsi_eh_finish_cmd() is invoked to EH-finish scmd
-	- shost->host_failed--
 	- clear scmd->eh_eflags
 	- scsi_setup_cmd_retry()
 	- move from local eh_work_q to local eh_done_q
     LOCKING: none
+    CONCURRENCY: at most one thread per separate eh_work_q to
+		 keep queue manipulation lockless
 
  4. EH completes
     ACTION: scsi_eh_flush_done_q() retries scmds or notifies upper
-	    layer of failure.
+	    layer of failure. May be called concurrently but must have
+	    a no more than one thread per separate eh_work_q to
+	    manipulate the queue locklessly
 	- scmd is removed from eh_done_q and scmd->eh_entry is cleared
 	- if retry is necessary, scmd is requeued using
           scsi_queue_insert()
 	- otherwise, scsi_finish_command() is invoked for scmd
+	- zero shost->host_failed
     LOCKING: queue or finish function performs appropriate locking
 
 
diff -druNp --no-dereference linux-libre-4.4-gnu/Documentation/serial/tty.txt linux-libre-4.4.107-gnu/Documentation/serial/tty.txt
--- linux-libre-4.4-gnu/Documentation/serial/tty.txt	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/Documentation/serial/tty.txt	2017-12-20 04:05:01.000000000 -0500
@@ -213,9 +213,6 @@ TTY_IO_ERROR		If set, causes all subsequ
 
 TTY_OTHER_CLOSED	Device is a pty and the other side has closed.
 
-TTY_OTHER_DONE		Device is a pty and the other side has closed and
-			all pending input processing has been completed.
-
 TTY_NO_WRITE_SPLIT	Prevent driver from splitting up writes into
 			smaller chunks.
 
diff -druNp --no-dereference linux-libre-4.4-gnu/Documentation/sysctl/fs.txt linux-libre-4.4.107-gnu/Documentation/sysctl/fs.txt
--- linux-libre-4.4-gnu/Documentation/sysctl/fs.txt	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/Documentation/sysctl/fs.txt	2017-12-20 04:05:01.000000000 -0500
@@ -32,6 +32,8 @@ Currently, these files are in /proc/sys/
 - nr_open
 - overflowuid
 - overflowgid
+- pipe-user-pages-hard
+- pipe-user-pages-soft
 - protected_hardlinks
 - protected_symlinks
 - suid_dumpable
@@ -159,6 +161,27 @@ The default is 65534.
 
 ==============================================================
 
+pipe-user-pages-hard:
+
+Maximum total number of pages a non-privileged user may allocate for pipes.
+Once this limit is reached, no new pipes may be allocated until usage goes
+below the limit again. When set to 0, no limit is applied, which is the default
+setting.
+
+==============================================================
+
+pipe-user-pages-soft:
+
+Maximum total number of pages a non-privileged user may allocate for pipes
+before the pipe size gets limited to a single page. Once this limit is reached,
+new pipes will be limited to a single page in size for this user in order to
+limit total memory usage, and trying to increase them using fcntl() will be
+denied until usage goes below the limit again. The default value allows to
+allocate up to 1024 pipes at their default size. When set to 0, no limit is
+applied.
+
+==============================================================
+
 protected_hardlinks:
 
 A long-standing class of security issues is the hardlink-based
@@ -242,6 +265,13 @@ aio-nr can grow to.
 
 ==============================================================
 
+mount-max:
+
+This denotes the maximum number of mounts that may exist
+in a mount namespace.
+
+==============================================================
+
 
 2. /proc/sys/fs/binfmt_misc
 ----------------------------------------------------------
diff -druNp --no-dereference linux-libre-4.4-gnu/Documentation/sysctl/kernel.txt linux-libre-4.4.107-gnu/Documentation/sysctl/kernel.txt
--- linux-libre-4.4-gnu/Documentation/sysctl/kernel.txt	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/Documentation/sysctl/kernel.txt	2017-12-20 04:05:01.000000000 -0500
@@ -810,14 +810,13 @@ via the /proc/sys interface:
        Each write syscall must fully contain the sysctl value to be
        written, and multiple writes on the same sysctl file descriptor
        will rewrite the sysctl value, regardless of file position.
-   0 - (default) Same behavior as above, but warn about processes that
-       perform writes to a sysctl file descriptor when the file position
-       is not 0.
-   1 - Respect file position when writing sysctl strings. Multiple writes
-       will append to the sysctl value buffer. Anything past the max length
-       of the sysctl value buffer will be ignored. Writes to numeric sysctl
-       entries must always be at file position 0 and the value must be
-       fully contained in the buffer sent in the write syscall.
+   0 - Same behavior as above, but warn about processes that perform writes
+       to a sysctl file descriptor when the file position is not 0.
+   1 - (default) Respect file position when writing sysctl strings. Multiple
+       writes will append to the sysctl value buffer. Anything past the max
+       length of the sysctl value buffer will be ignored. Writes to numeric
+       sysctl entries must always be at file position 0 and the value must
+       be fully contained in the buffer sent in the write syscall.
 
 ==============================================================
 
diff -druNp --no-dereference linux-libre-4.4-gnu/Documentation/usb/power-management.txt linux-libre-4.4.107-gnu/Documentation/usb/power-management.txt
--- linux-libre-4.4-gnu/Documentation/usb/power-management.txt	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/Documentation/usb/power-management.txt	2017-12-20 04:05:01.000000000 -0500
@@ -537,17 +537,18 @@ relevant attribute files are usb2_hardwa
 		can write y/Y/1 or n/N/0 to the file to	enable/disable
 		USB2 hardware LPM manually. This is for	test purpose mainly.
 
-	power/usb3_hardware_lpm
+	power/usb3_hardware_lpm_u1
+	power/usb3_hardware_lpm_u2
 
 		When a USB 3.0 lpm-capable device is plugged in to a
 		xHCI host which supports link PM, it will check if U1
 		and U2 exit latencies have been set in the BOS
 		descriptor; if the check is is passed and the host
 		supports USB3 hardware LPM, USB3 hardware LPM will be
-		enabled for the device and this file will be created.
-		The file holds a string value (enable or disable)
-		indicating whether or not USB3 hardware LPM is
-		enabled for the device.
+		enabled for the device and these files will be created.
+		The files hold a string value (enable or disable)
+		indicating whether or not USB3 hardware LPM U1 or U2
+		is enabled for the device.
 
 	USB Port Power Control
 	----------------------
diff -druNp --no-dereference linux-libre-4.4-gnu/Documentation/virtual/kvm/api.txt linux-libre-4.4.107-gnu/Documentation/virtual/kvm/api.txt
--- linux-libre-4.4-gnu/Documentation/virtual/kvm/api.txt	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/Documentation/virtual/kvm/api.txt	2017-12-20 04:05:01.000000000 -0500
@@ -1991,6 +1991,7 @@ registers, find a list below:
   PPC   | KVM_REG_PPC_TM_VSCR           | 32
   PPC   | KVM_REG_PPC_TM_DSCR           | 64
   PPC   | KVM_REG_PPC_TM_TAR            | 64
+  PPC   | KVM_REG_PPC_TM_XER            | 64
         |                               |
   MIPS  | KVM_REG_MIPS_R0               | 64
           ...
diff -druNp --no-dereference linux-libre-4.4-gnu/Documentation/virtual/kvm/mmu.txt linux-libre-4.4.107-gnu/Documentation/virtual/kvm/mmu.txt
--- linux-libre-4.4-gnu/Documentation/virtual/kvm/mmu.txt	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/Documentation/virtual/kvm/mmu.txt	2017-12-20 04:05:01.000000000 -0500
@@ -358,7 +358,8 @@ In the first case there are two addition
 - if CR4.SMEP is enabled: since we've turned the page into a kernel page,
   the kernel may now execute it.  We handle this by also setting spte.nx.
   If we get a user fetch or read fault, we'll change spte.u=1 and
-  spte.nx=gpte.nx back.
+  spte.nx=gpte.nx back.  For this to work, KVM forces EFER.NX to 1 when
+  shadow paging is in use.
 - if CR4.SMAP is disabled: since the page has been changed to a kernel
   page, it can not be reused when CR4.SMAP is enabled. We set
   CR4.SMAP && !CR0.WP into shadow page's role to avoid this case. Note,
diff -druNp --no-dereference linux-libre-4.4-gnu/Documentation/x86/pat.txt linux-libre-4.4.107-gnu/Documentation/x86/pat.txt
--- linux-libre-4.4-gnu/Documentation/x86/pat.txt	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/Documentation/x86/pat.txt	2017-12-20 04:05:01.000000000 -0500
@@ -196,3 +196,35 @@ Another, more verbose way of getting PAT
 "debugpat" boot parameter. With this parameter, various debug messages are
 printed to dmesg log.
 
+PAT Initialization
+------------------
+
+The following table describes how PAT is initialized under various
+configurations. The PAT MSR must be updated by Linux in order to support WC
+and WT attributes. Otherwise, the PAT MSR has the value programmed in it
+by the firmware. Note, Xen enables WC attribute in the PAT MSR for guests.
+
+ MTRR PAT   Call Sequence               PAT State  PAT MSR
+ =========================================================
+ E    E     MTRR -> PAT init            Enabled    OS
+ E    D     MTRR -> PAT init            Disabled    -
+ D    E     MTRR -> PAT disable         Disabled   BIOS
+ D    D     MTRR -> PAT disable         Disabled    -
+ -    np/E  PAT  -> PAT disable         Disabled   BIOS
+ -    np/D  PAT  -> PAT disable         Disabled    -
+ E    !P/E  MTRR -> PAT init            Disabled   BIOS
+ D    !P/E  MTRR -> PAT disable         Disabled   BIOS
+ !M   !P/E  MTRR stub -> PAT disable    Disabled   BIOS
+
+ Legend
+ ------------------------------------------------
+ E         Feature enabled in CPU
+ D	   Feature disabled/unsupported in CPU
+ np	   "nopat" boot option specified
+ !P	   CONFIG_X86_PAT option unset
+ !M	   CONFIG_MTRR option unset
+ Enabled   PAT state set to enabled
+ Disabled  PAT state set to disabled
+ OS        PAT initializes PAT MSR with OS setting
+ BIOS      PAT keeps PAT MSR with BIOS setting
+
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/acpi/acpica/dsmethod.c linux-libre-4.4.107-gnu/drivers/acpi/acpica/dsmethod.c
--- linux-libre-4.4-gnu/drivers/acpi/acpica/dsmethod.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/acpi/acpica/dsmethod.c	2017-12-20 04:05:01.000000000 -0500
@@ -417,6 +417,9 @@ acpi_ds_begin_method_execution(struct ac
 				obj_desc->method.mutex->mutex.
 				    original_sync_level =
 				    obj_desc->method.mutex->mutex.sync_level;
+
+				obj_desc->method.mutex->mutex.thread_id =
+				    acpi_os_get_thread_id();
 			}
 		}
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/acpi/acpica/hwxface.c linux-libre-4.4.107-gnu/drivers/acpi/acpica/hwxface.c
--- linux-libre-4.4-gnu/drivers/acpi/acpica/hwxface.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/acpi/acpica/hwxface.c	2017-12-20 04:05:01.000000000 -0500
@@ -504,11 +504,20 @@ acpi_get_sleep_type_data(u8 sleep_state,
 	 * Evaluate the \_Sx namespace object containing the register values
 	 * for this state
 	 */
-	info->relative_pathname =
-	    ACPI_CAST_PTR(char, acpi_gbl_sleep_state_names[sleep_state]);
+	info->relative_pathname = ACPI_CAST_PTR(char,
+						acpi_gbl_sleep_state_names
+						[sleep_state]);
+
 	status = acpi_ns_evaluate(info);
 	if (ACPI_FAILURE(status)) {
-		goto cleanup;
+		if (status == AE_NOT_FOUND) {
+
+			/* The _Sx states are optional, ignore NOT_FOUND */
+
+			goto final_cleanup;
+		}
+
+		goto warning_cleanup;
 	}
 
 	/* Must have a return object */
@@ -517,7 +526,7 @@ acpi_get_sleep_type_data(u8 sleep_state,
 		ACPI_ERROR((AE_INFO, "No Sleep State object returned from [%s]",
 			    info->relative_pathname));
 		status = AE_AML_NO_RETURN_VALUE;
-		goto cleanup;
+		goto warning_cleanup;
 	}
 
 	/* Return object must be of type Package */
@@ -526,7 +535,7 @@ acpi_get_sleep_type_data(u8 sleep_state,
 		ACPI_ERROR((AE_INFO,
 			    "Sleep State return object is not a Package"));
 		status = AE_AML_OPERAND_TYPE;
-		goto cleanup1;
+		goto return_value_cleanup;
 	}
 
 	/*
@@ -570,16 +579,17 @@ acpi_get_sleep_type_data(u8 sleep_state,
 		break;
 	}
 
-cleanup1:
+return_value_cleanup:
 	acpi_ut_remove_reference(info->return_object);
 
-cleanup:
+warning_cleanup:
 	if (ACPI_FAILURE(status)) {
 		ACPI_EXCEPTION((AE_INFO, status,
 				"While evaluating Sleep State [%s]",
 				info->relative_pathname));
 	}
 
+final_cleanup:
 	ACPI_FREE(info);
 	return_ACPI_STATUS(status);
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/acpi/acpi_platform.c linux-libre-4.4.107-gnu/drivers/acpi/acpi_platform.c
--- linux-libre-4.4-gnu/drivers/acpi/acpi_platform.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/acpi/acpi_platform.c	2017-12-20 04:05:01.000000000 -0500
@@ -24,9 +24,11 @@
 ACPI_MODULE_NAME("platform");
 
 static const struct acpi_device_id forbidden_id_list[] = {
-	{"PNP0000", 0},	/* PIC */
-	{"PNP0100", 0},	/* Timer */
-	{"PNP0200", 0},	/* AT DMA Controller */
+	{"PNP0000",  0},	/* PIC */
+	{"PNP0100",  0},	/* Timer */
+	{"PNP0200",  0},	/* AT DMA Controller */
+	{"ACPI0009", 0},	/* IOxAPIC */
+	{"ACPI000A", 0},	/* IOAPIC */
 	{"", 0},
 };
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/acpi/acpi_processor.c linux-libre-4.4.107-gnu/drivers/acpi/acpi_processor.c
--- linux-libre-4.4-gnu/drivers/acpi/acpi_processor.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/acpi/acpi_processor.c	2017-12-20 04:05:01.000000000 -0500
@@ -491,6 +491,58 @@ static void acpi_processor_remove(struct
 }
 #endif /* CONFIG_ACPI_HOTPLUG_CPU */
 
+#ifdef CONFIG_X86
+static bool acpi_hwp_native_thermal_lvt_set;
+static acpi_status __init acpi_hwp_native_thermal_lvt_osc(acpi_handle handle,
+							  u32 lvl,
+							  void *context,
+							  void **rv)
+{
+	u8 sb_uuid_str[] = "4077A616-290C-47BE-9EBD-D87058713953";
+	u32 capbuf[2];
+	struct acpi_osc_context osc_context = {
+		.uuid_str = sb_uuid_str,
+		.rev = 1,
+		.cap.length = 8,
+		.cap.pointer = capbuf,
+	};
+
+	if (acpi_hwp_native_thermal_lvt_set)
+		return AE_CTRL_TERMINATE;
+
+	capbuf[0] = 0x0000;
+	capbuf[1] = 0x1000; /* set bit 12 */
+
+	if (ACPI_SUCCESS(acpi_run_osc(handle, &osc_context))) {
+		if (osc_context.ret.pointer && osc_context.ret.length > 1) {
+			u32 *capbuf_ret = osc_context.ret.pointer;
+
+			if (capbuf_ret[1] & 0x1000) {
+				acpi_handle_info(handle,
+					"_OSC native thermal LVT Acked\n");
+				acpi_hwp_native_thermal_lvt_set = true;
+			}
+		}
+		kfree(osc_context.ret.pointer);
+	}
+
+	return AE_OK;
+}
+
+void __init acpi_early_processor_osc(void)
+{
+	if (boot_cpu_has(X86_FEATURE_HWP)) {
+		acpi_walk_namespace(ACPI_TYPE_PROCESSOR, ACPI_ROOT_OBJECT,
+				    ACPI_UINT32_MAX,
+				    acpi_hwp_native_thermal_lvt_osc,
+				    NULL, NULL, NULL);
+		acpi_get_devices(ACPI_PROCESSOR_DEVICE_HID,
+				 acpi_hwp_native_thermal_lvt_osc,
+				 NULL, NULL);
+	}
+}
+#endif
+
 /*
  * The following ACPI IDs are known to be suitable for representing as
  * processor devices.
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/acpi/acpi_video.c linux-libre-4.4.107-gnu/drivers/acpi/acpi_video.c
--- linux-libre-4.4-gnu/drivers/acpi/acpi_video.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/acpi/acpi_video.c	2017-12-20 04:05:01.000000000 -0500
@@ -465,6 +465,15 @@ static struct dmi_system_id video_dmi_ta
 	 * as brightness control does not work.
 	 */
 	{
+	 /* https://bugzilla.kernel.org/show_bug.cgi?id=21012 */
+	 .callback = video_disable_backlight_sysfs_if,
+	 .ident = "Toshiba Portege R700",
+	 .matches = {
+		DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
+		DMI_MATCH(DMI_PRODUCT_NAME, "PORTEGE R700"),
+		},
+	},
+	{
 	 /* https://bugs.freedesktop.org/show_bug.cgi?id=82634 */
 	 .callback = video_disable_backlight_sysfs_if,
 	 .ident = "Toshiba Portege R830",
@@ -473,6 +482,15 @@ static struct dmi_system_id video_dmi_ta
 		DMI_MATCH(DMI_PRODUCT_NAME, "PORTEGE R830"),
 		},
 	},
+	{
+	 /* https://bugzilla.kernel.org/show_bug.cgi?id=21012 */
+	 .callback = video_disable_backlight_sysfs_if,
+	 .ident = "Toshiba Satellite R830",
+	 .matches = {
+		DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
+		DMI_MATCH(DMI_PRODUCT_NAME, "SATELLITE R830"),
+		},
+	},
 	/*
 	 * Some machine's _DOD IDs don't have bit 31(Device ID Scheme) set
 	 * but the IDs actually follow the Device ID Scheme.
@@ -1193,6 +1211,9 @@ static int acpi_video_device_enumerate(s
 	union acpi_object *dod = NULL;
 	union acpi_object *obj;
 
+	if (!video->cap._DOD)
+		return AE_NOT_EXIST;
+
 	status = acpi_evaluate_object(video->device->handle, "_DOD", NULL, &buffer);
 	if (!ACPI_SUCCESS(status)) {
 		ACPI_EXCEPTION((AE_INFO, status, "Evaluating _DOD"));
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/acpi/apei/ghes.c linux-libre-4.4.107-gnu/drivers/acpi/apei/ghes.c
--- linux-libre-4.4-gnu/drivers/acpi/apei/ghes.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/acpi/apei/ghes.c	2017-12-20 04:05:01.000000000 -0500
@@ -657,7 +657,7 @@ static int ghes_proc(struct ghes *ghes)
 	ghes_do_proc(ghes, ghes->estatus);
 out:
 	ghes_clear_estatus(ghes);
-	return 0;
+	return rc;
 }
 
 static void ghes_add_timer(struct ghes *ghes)
@@ -847,6 +847,8 @@ static int ghes_notify_nmi(unsigned int
 		if (ghes_read_estatus(ghes, 1)) {
 			ghes_clear_estatus(ghes);
 			continue;
+		} else {
+			ret = NMI_HANDLED;
 		}
 
 		sev = ghes_severity(ghes->estatus->error_severity);
@@ -858,12 +860,11 @@ static int ghes_notify_nmi(unsigned int
 
 		__process_error(ghes);
 		ghes_clear_estatus(ghes);
-
-		ret = NMI_HANDLED;
 	}
 
 #ifdef CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG
-	irq_work_queue(&ghes_proc_irq_work);
+	if (ret == NMI_HANDLED)
+		irq_work_queue(&ghes_proc_irq_work);
 #endif
 	atomic_dec(&ghes_in_nmi);
 	return ret;
@@ -1066,6 +1067,7 @@ static int ghes_remove(struct platform_d
 		if (list_empty(&ghes_sci))
 			unregister_acpi_hed_notifier(&ghes_notifier_sci);
 		mutex_unlock(&ghes_list_mutex);
+		synchronize_rcu();
 		break;
 	case ACPI_HEST_NOTIFY_NMI:
 		ghes_nmi_remove(ghes);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/acpi/blacklist.c linux-libre-4.4.107-gnu/drivers/acpi/blacklist.c
--- linux-libre-4.4-gnu/drivers/acpi/blacklist.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/acpi/blacklist.c	2017-12-20 04:05:01.000000000 -0500
@@ -346,6 +346,34 @@ static struct dmi_system_id acpi_osi_dmi
 		      DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9343"),
 		},
 	},
+	{
+	 .callback = dmi_enable_rev_override,
+	 .ident = "DELL Precision 5520",
+	 .matches = {
+		      DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+		      DMI_MATCH(DMI_PRODUCT_NAME, "Precision 5520"),
+		},
+	},
+	{
+	 .callback = dmi_enable_rev_override,
+	 .ident = "DELL Precision 3520",
+	 .matches = {
+		      DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+		      DMI_MATCH(DMI_PRODUCT_NAME, "Precision 3520"),
+		},
+	},
+	/*
+	 * Resolves a quirk with the Dell Latitude 3350 that
+	 * causes the ethernet adapter to not function.
+	 */
+	{
+	 .callback = dmi_enable_rev_override,
+	 .ident = "DELL Latitude 3350",
+	 .matches = {
+		      DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+		      DMI_MATCH(DMI_PRODUCT_NAME, "Latitude 3350"),
+		},
+	},
 #endif
 	{}
 };
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/acpi/bus.c linux-libre-4.4.107-gnu/drivers/acpi/bus.c
--- linux-libre-4.4-gnu/drivers/acpi/bus.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/acpi/bus.c	2017-12-20 04:05:01.000000000 -0500
@@ -1004,6 +1004,9 @@ static int __init acpi_bus_init(void)
 		goto error1;
 	}
 
+	/* Set capability bits for _OSC under processor scope */
+	acpi_early_processor_osc();
+
 	/*
 	 * _OSC method may exist in module level code,
 	 * so it must be run after ACPI_FULL_INITIALIZATION
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/acpi/cppc_acpi.c linux-libre-4.4.107-gnu/drivers/acpi/cppc_acpi.c
--- linux-libre-4.4-gnu/drivers/acpi/cppc_acpi.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/acpi/cppc_acpi.c	2017-12-20 04:05:01.000000000 -0500
@@ -216,8 +216,10 @@ int acpi_get_psd_map(struct cpudata **al
 			continue;
 
 		cpc_ptr = per_cpu(cpc_desc_ptr, i);
-		if (!cpc_ptr)
-			continue;
+		if (!cpc_ptr) {
+			retval = -EFAULT;
+			goto err_ret;
+		}
 
 		pdomain = &(cpc_ptr->domain_info);
 		cpumask_set_cpu(i, pr->shared_cpu_map);
@@ -239,8 +241,10 @@ int acpi_get_psd_map(struct cpudata **al
 				continue;
 
 			match_cpc_ptr = per_cpu(cpc_desc_ptr, j);
-			if (!match_cpc_ptr)
-				continue;
+			if (!match_cpc_ptr) {
+				retval = -EFAULT;
+				goto err_ret;
+			}
 
 			match_pdomain = &(match_cpc_ptr->domain_info);
 			if (match_pdomain->domain != pdomain->domain)
@@ -270,8 +274,10 @@ int acpi_get_psd_map(struct cpudata **al
 				continue;
 
 			match_cpc_ptr = per_cpu(cpc_desc_ptr, j);
-			if (!match_cpc_ptr)
-				continue;
+			if (!match_cpc_ptr) {
+				retval = -EFAULT;
+				goto err_ret;
+			}
 
 			match_pdomain = &(match_cpc_ptr->domain_info);
 			if (match_pdomain->domain != pdomain->domain)
@@ -502,9 +508,6 @@ int acpi_cppc_processor_probe(struct acp
 	/* Store CPU Logical ID */
 	cpc_ptr->cpu_id = pr->id;
 
-	/* Plug it into this CPUs CPC descriptor. */
-	per_cpu(cpc_desc_ptr, pr->id) = cpc_ptr;
-
 	/* Parse PSD data for this CPU */
 	ret = acpi_get_psd(cpc_ptr, handle);
 	if (ret)
@@ -517,6 +520,9 @@ int acpi_cppc_processor_probe(struct acp
 			goto out_free;
 	}
 
+	/* Plug PSD data into this CPUs CPC descriptor. */
+	per_cpu(cpc_desc_ptr, pr->id) = cpc_ptr;
+
 	/* Everything looks okay */
 	pr_debug("Parsed CPC struct for CPU: %d\n", pr->id);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/acpi/ec.c linux-libre-4.4.107-gnu/drivers/acpi/ec.c
--- linux-libre-4.4-gnu/drivers/acpi/ec.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/acpi/ec.c	2017-12-20 04:05:01.000000000 -0500
@@ -101,6 +101,7 @@ enum ec_command {
 #define ACPI_EC_UDELAY_POLL	550	/* Wait 1ms for EC transaction polling */
 #define ACPI_EC_CLEAR_MAX	100	/* Maximum number of events to query
 					 * when trying to clear the EC */
+#define ACPI_EC_MAX_QUERIES	16	/* Maximum number of parallel queries */
 
 enum {
 	EC_FLAGS_QUERY_PENDING,		/* Query is pending */
@@ -121,6 +122,10 @@ static unsigned int ec_delay __read_most
 module_param(ec_delay, uint, 0644);
 MODULE_PARM_DESC(ec_delay, "Timeout(ms) waited until an EC command completes");
 
+static unsigned int ec_max_queries __read_mostly = ACPI_EC_MAX_QUERIES;
+module_param(ec_max_queries, uint, 0644);
+MODULE_PARM_DESC(ec_max_queries, "Maximum parallel _Qxx evaluations");
+
 static bool ec_busy_polling __read_mostly;
 module_param(ec_busy_polling, bool, 0644);
 MODULE_PARM_DESC(ec_busy_polling, "Use busy polling to advance EC transaction");
@@ -174,6 +179,7 @@ static void acpi_ec_event_processor(stru
 
 struct acpi_ec *boot_ec, *first_ec;
 EXPORT_SYMBOL(first_ec);
+static struct workqueue_struct *ec_query_wq;
 
 static int EC_FLAGS_VALIDATE_ECDT; /* ASUStec ECDTs need to be validated */
 static int EC_FLAGS_SKIP_DSDT_SCAN; /* Not all BIOS survive early DSDT scan */
@@ -1097,7 +1103,7 @@ static int acpi_ec_query(struct acpi_ec
 	 * work queue execution.
 	 */
 	ec_dbg_evt("Query(0x%02x) scheduled", value);
-	if (!schedule_work(&q->work)) {
+	if (!queue_work(ec_query_wq, &q->work)) {
 		ec_dbg_evt("Query(0x%02x) overlapped", value);
 		result = -EBUSY;
 	}
@@ -1657,15 +1663,41 @@ static struct acpi_driver acpi_ec_driver
 		},
 };
 
+static inline int acpi_ec_query_init(void)
+{
+	if (!ec_query_wq) {
+		ec_query_wq = alloc_workqueue("kec_query", 0,
+					      ec_max_queries);
+		if (!ec_query_wq)
+			return -ENODEV;
+	}
+	return 0;
+}
+
+static inline void acpi_ec_query_exit(void)
+{
+	if (ec_query_wq) {
+		destroy_workqueue(ec_query_wq);
+		ec_query_wq = NULL;
+	}
+}
+
 int __init acpi_ec_init(void)
 {
-	int result = 0;
+	int result;
 
+	/* register workqueue for _Qxx evaluations */
+	result = acpi_ec_query_init();
+	if (result)
+		goto err_exit;
 	/* Now register the driver for the EC */
 	result = acpi_bus_register_driver(&acpi_ec_driver);
-	if (result < 0)
-		return -ENODEV;
+	if (result)
+		goto err_exit;
 
+err_exit:
+	if (result)
+		acpi_ec_query_exit();
 	return result;
 }
 
@@ -1675,5 +1707,6 @@ static void __exit acpi_ec_exit(void)
 {
 
 	acpi_bus_unregister_driver(&acpi_ec_driver);
+	acpi_ec_query_exit();
 }
 #endif	/* 0 */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/acpi/glue.c linux-libre-4.4.107-gnu/drivers/acpi/glue.c
--- linux-libre-4.4-gnu/drivers/acpi/glue.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/acpi/glue.c	2017-12-20 04:05:01.000000000 -0500
@@ -98,7 +98,15 @@ static int find_child_checks(struct acpi
 	if (check_children && list_empty(&adev->children))
 		return -ENODEV;
 
-	return sta_present ? FIND_CHILD_MAX_SCORE : FIND_CHILD_MIN_SCORE;
+	/*
+	 * If the device has a _HID (or _CID) returning a valid ACPI/PNP
+	 * device ID, it is better to make it look less attractive here, so that
+	 * the other device with the same _ADR value (that may not have a valid
+	 * device ID) can be matched going forward.  [This means a second spec
+	 * violation in a row, so whatever we do here is best effort anyway.]
+	 */
+	return sta_present && list_empty(&adev->pnp.ids) ?
+			FIND_CHILD_MAX_SCORE : FIND_CHILD_MIN_SCORE;
 }
 
 struct acpi_device *acpi_find_child_device(struct acpi_device *parent,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/acpi/internal.h linux-libre-4.4.107-gnu/drivers/acpi/internal.h
--- linux-libre-4.4-gnu/drivers/acpi/internal.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/acpi/internal.h	2017-12-20 04:05:01.000000000 -0500
@@ -130,6 +130,12 @@ void acpi_early_processor_set_pdc(void);
 static inline void acpi_early_processor_set_pdc(void) {}
 #endif
 
+#ifdef CONFIG_X86
+void acpi_early_processor_osc(void);
+#else
+static inline void acpi_early_processor_osc(void) {}
+#endif
+
 /* --------------------------------------------------------------------------
                                   Embedded Controller
    -------------------------------------------------------------------------- */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/acpi/ioapic.c linux-libre-4.4.107-gnu/drivers/acpi/ioapic.c
--- linux-libre-4.4-gnu/drivers/acpi/ioapic.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/acpi/ioapic.c	2017-12-20 04:05:01.000000000 -0500
@@ -45,6 +45,12 @@ static acpi_status setup_res(struct acpi
 	struct resource *res = data;
 	struct resource_win win;
 
+	/*
+	 * We might assign this to 'res' later, make sure all pointers are
+	 * cleared before the resource is added to the global list
+	 */
+	memset(&win, 0, sizeof(win));
+
 	res->flags = 0;
 	if (acpi_dev_filter_resource_type(acpi_res, IORESOURCE_MEM) == 0)
 		return AE_OK;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/acpi/Makefile linux-libre-4.4.107-gnu/drivers/acpi/Makefile
--- linux-libre-4.4-gnu/drivers/acpi/Makefile	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/acpi/Makefile	2017-12-20 04:05:01.000000000 -0500
@@ -2,7 +2,6 @@
 # Makefile for the Linux ACPI interpreter
 #
 
-ccflags-y			:= -Os
 ccflags-$(CONFIG_ACPI_DEBUG)	+= -DACPI_DEBUG_OUTPUT
 
 #
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/acpi/nfit.c linux-libre-4.4.107-gnu/drivers/acpi/nfit.c
--- linux-libre-4.4-gnu/drivers/acpi/nfit.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/acpi/nfit.c	2017-12-20 04:05:01.000000000 -0500
@@ -468,37 +468,16 @@ static void nfit_mem_find_spa_bdw(struct
 	nfit_mem->bdw = NULL;
 }
 
-static int nfit_mem_add(struct acpi_nfit_desc *acpi_desc,
+static void nfit_mem_init_bdw(struct acpi_nfit_desc *acpi_desc,
 		struct nfit_mem *nfit_mem, struct acpi_nfit_system_address *spa)
 {
 	u16 dcr = __to_nfit_memdev(nfit_mem)->region_index;
 	struct nfit_memdev *nfit_memdev;
 	struct nfit_flush *nfit_flush;
-	struct nfit_dcr *nfit_dcr;
 	struct nfit_bdw *nfit_bdw;
 	struct nfit_idt *nfit_idt;
 	u16 idt_idx, range_index;
 
-	list_for_each_entry(nfit_dcr, &acpi_desc->dcrs, list) {
-		if (nfit_dcr->dcr->region_index != dcr)
-			continue;
-		nfit_mem->dcr = nfit_dcr->dcr;
-		break;
-	}
-
-	if (!nfit_mem->dcr) {
-		dev_dbg(acpi_desc->dev, "SPA %d missing:%s%s\n",
-				spa->range_index, __to_nfit_memdev(nfit_mem)
-				? "" : " MEMDEV", nfit_mem->dcr ? "" : " DCR");
-		return -ENODEV;
-	}
-
-	/*
-	 * We've found enough to create an nvdimm, optionally
-	 * find an associated BDW
-	 */
-	list_add(&nfit_mem->list, &acpi_desc->dimms);
-
 	list_for_each_entry(nfit_bdw, &acpi_desc->bdws, list) {
 		if (nfit_bdw->bdw->region_index != dcr)
 			continue;
@@ -507,12 +486,12 @@ static int nfit_mem_add(struct acpi_nfit
 	}
 
 	if (!nfit_mem->bdw)
-		return 0;
+		return;
 
 	nfit_mem_find_spa_bdw(acpi_desc, nfit_mem);
 
 	if (!nfit_mem->spa_bdw)
-		return 0;
+		return;
 
 	range_index = nfit_mem->spa_bdw->range_index;
 	list_for_each_entry(nfit_memdev, &acpi_desc->memdevs, list) {
@@ -537,8 +516,6 @@ static int nfit_mem_add(struct acpi_nfit
 		}
 		break;
 	}
-
-	return 0;
 }
 
 static int nfit_mem_dcr_init(struct acpi_nfit_desc *acpi_desc,
@@ -547,7 +524,6 @@ static int nfit_mem_dcr_init(struct acpi
 	struct nfit_mem *nfit_mem, *found;
 	struct nfit_memdev *nfit_memdev;
 	int type = nfit_spa_type(spa);
-	u16 dcr;
 
 	switch (type) {
 	case NFIT_SPA_DCR:
@@ -558,14 +534,18 @@ static int nfit_mem_dcr_init(struct acpi
 	}
 
 	list_for_each_entry(nfit_memdev, &acpi_desc->memdevs, list) {
-		int rc;
+		struct nfit_dcr *nfit_dcr;
+		u32 device_handle;
+		u16 dcr;
 
 		if (nfit_memdev->memdev->range_index != spa->range_index)
 			continue;
 		found = NULL;
 		dcr = nfit_memdev->memdev->region_index;
+		device_handle = nfit_memdev->memdev->device_handle;
 		list_for_each_entry(nfit_mem, &acpi_desc->dimms, list)
-			if (__to_nfit_memdev(nfit_mem)->region_index == dcr) {
+			if (__to_nfit_memdev(nfit_mem)->device_handle
+					== device_handle) {
 				found = nfit_mem;
 				break;
 			}
@@ -578,6 +558,31 @@ static int nfit_mem_dcr_init(struct acpi
 			if (!nfit_mem)
 				return -ENOMEM;
 			INIT_LIST_HEAD(&nfit_mem->list);
+			list_add(&nfit_mem->list, &acpi_desc->dimms);
+		}
+
+		list_for_each_entry(nfit_dcr, &acpi_desc->dcrs, list) {
+			if (nfit_dcr->dcr->region_index != dcr)
+				continue;
+			/*
+			 * Record the control region for the dimm.  For
+			 * the ACPI 6.1 case, where there are separate
+			 * control regions for the pmem vs blk
+			 * interfaces, be sure to record the extended
+			 * blk details.
+			 */
+			if (!nfit_mem->dcr)
+				nfit_mem->dcr = nfit_dcr->dcr;
+			else if (nfit_mem->dcr->windows == 0
+					&& nfit_dcr->dcr->windows)
+				nfit_mem->dcr = nfit_dcr->dcr;
+			break;
+		}
+
+		if (dcr && !nfit_mem->dcr) {
+			dev_err(acpi_desc->dev, "SPA %d missing DCR %d\n",
+					spa->range_index, dcr);
+			return -ENODEV;
 		}
 
 		if (type == NFIT_SPA_DCR) {
@@ -594,6 +599,7 @@ static int nfit_mem_dcr_init(struct acpi
 				nfit_mem->idt_dcr = nfit_idt->idt;
 				break;
 			}
+			nfit_mem_init_bdw(acpi_desc, nfit_mem, spa);
 		} else {
 			/*
 			 * A single dimm may belong to multiple SPA-PM
@@ -602,13 +608,6 @@ static int nfit_mem_dcr_init(struct acpi
 			 */
 			nfit_mem->memdev_pmem = nfit_memdev->memdev;
 		}
-
-		if (found)
-			continue;
-
-		rc = nfit_mem_add(acpi_desc, nfit_mem, spa);
-		if (rc)
-			return rc;
 	}
 
 	return 0;
@@ -966,7 +965,7 @@ static size_t sizeof_nfit_set_info(int n
 		+ num_mappings * sizeof(struct nfit_set_info_map);
 }
 
-static int cmp_map(const void *m0, const void *m1)
+static int cmp_map_compat(const void *m0, const void *m1)
 {
 	const struct nfit_set_info_map *map0 = m0;
 	const struct nfit_set_info_map *map1 = m1;
@@ -975,6 +974,18 @@ static int cmp_map(const void *m0, const
 			sizeof(u64));
 }
 
+static int cmp_map(const void *m0, const void *m1)
+{
+	const struct nfit_set_info_map *map0 = m0;
+	const struct nfit_set_info_map *map1 = m1;
+
+	if (map0->region_offset < map1->region_offset)
+		return -1;
+	else if (map0->region_offset > map1->region_offset)
+		return 1;
+	return 0;
+}
+
 /* Retrieve the nth entry referencing this spa */
 static struct acpi_nfit_memory_map *memdev_from_spa(
 		struct acpi_nfit_desc *acpi_desc, u16 range_index, int n)
@@ -1030,6 +1041,12 @@ static int acpi_nfit_init_interleave_set
 	sort(&info->mapping[0], nr, sizeof(struct nfit_set_info_map),
 			cmp_map, NULL);
 	nd_set->cookie = nd_fletcher64(info, sizeof_nfit_set_info(nr), 0);
+
+	/* support namespaces created with the wrong sort order */
+	sort(&info->mapping[0], nr, sizeof(struct nfit_set_info_map),
+			cmp_map_compat, NULL);
+	nd_set->altcookie = nd_fletcher64(info, sizeof_nfit_set_info(nr), 0);
+
 	ndr_desc->nd_set = nd_set;
 	devm_kfree(dev, info);
 
@@ -1073,11 +1090,12 @@ static u32 read_blk_stat(struct nfit_blk
 {
 	struct nfit_blk_mmio *mmio = &nfit_blk->mmio[DCR];
 	u64 offset = nfit_blk->stat_offset + mmio->size * bw;
+	const u32 STATUS_MASK = 0x80000037;
 
 	if (mmio->num_lines)
 		offset = to_interleave_offset(offset, mmio);
 
-	return readl(mmio->addr.base + offset);
+	return readl(mmio->addr.base + offset) & STATUS_MASK;
 }
 
 static void write_blk_ctl(struct nfit_blk *nfit_blk, unsigned int bw,
@@ -1806,6 +1824,9 @@ static void acpi_nfit_notify(struct acpi
 
 	dev_dbg(dev, "%s: event: %d\n", __func__, event);
 
+	if (event != NFIT_NOTIFY_UPDATE)
+		return;
+
 	device_lock(dev);
 	if (!dev->driver) {
 		/* dev->driver may be null if we're being removed */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/acpi/nfit.h linux-libre-4.4.107-gnu/drivers/acpi/nfit.h
--- linux-libre-4.4-gnu/drivers/acpi/nfit.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/acpi/nfit.h	2017-12-20 04:05:01.000000000 -0500
@@ -45,6 +45,10 @@ enum {
 	ND_BLK_DCR_LATCH = 2,
 };
 
+enum nfit_root_notifiers {
+	NFIT_NOTIFY_UPDATE = 0x80,
+};
+
 struct nfit_spa {
 	struct acpi_nfit_system_address *spa;
 	struct list_head list;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/acpi/numa.c linux-libre-4.4.107-gnu/drivers/acpi/numa.c
--- linux-libre-4.4-gnu/drivers/acpi/numa.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/acpi/numa.c	2017-12-20 04:05:01.000000000 -0500
@@ -327,10 +327,18 @@ int __init acpi_numa_init(void)
 
 	/* SRAT: Static Resource Affinity Table */
 	if (!acpi_table_parse(ACPI_SIG_SRAT, acpi_parse_srat)) {
-		acpi_table_parse_srat(ACPI_SRAT_TYPE_X2APIC_CPU_AFFINITY,
-				     acpi_parse_x2apic_affinity, 0);
-		acpi_table_parse_srat(ACPI_SRAT_TYPE_CPU_AFFINITY,
-				     acpi_parse_processor_affinity, 0);
+		struct acpi_subtable_proc srat_proc[2];
+
+		memset(srat_proc, 0, sizeof(srat_proc));
+		srat_proc[0].id = ACPI_SRAT_TYPE_CPU_AFFINITY;
+		srat_proc[0].handler = acpi_parse_processor_affinity;
+		srat_proc[1].id = ACPI_SRAT_TYPE_X2APIC_CPU_AFFINITY;
+		srat_proc[1].handler = acpi_parse_x2apic_affinity;
+
+		acpi_table_parse_entries_array(ACPI_SIG_SRAT,
+					sizeof(struct acpi_table_srat),
+					srat_proc, ARRAY_SIZE(srat_proc), 0);
+
 		cnt = acpi_table_parse_srat(ACPI_SRAT_TYPE_MEMORY_AFFINITY,
 					    acpi_parse_memory_affinity,
 					    NR_NODE_MEMBLKS);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/acpi/osl.c linux-libre-4.4.107-gnu/drivers/acpi/osl.c
--- linux-libre-4.4-gnu/drivers/acpi/osl.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/acpi/osl.c	2017-12-20 04:05:01.000000000 -0500
@@ -135,7 +135,7 @@ static struct osi_linux {
 	unsigned int	enable:1;
 	unsigned int	dmi:1;
 	unsigned int	cmdline:1;
-	unsigned int	default_disabling:1;
+	u8		default_disabling;
 } osi_linux = {0, 0, 0, 0};
 
 static u32 acpi_osi_handler(acpi_string interface, u32 supported)
@@ -1444,10 +1444,13 @@ void __init acpi_osi_setup(char *str)
 	if (*str == '!') {
 		str++;
 		if (*str == '\0') {
-			osi_linux.default_disabling = 1;
+			/* Do not override acpi_osi=!* */
+			if (!osi_linux.default_disabling)
+				osi_linux.default_disabling =
+					ACPI_DISABLE_ALL_VENDOR_STRINGS;
 			return;
 		} else if (*str == '*') {
-			acpi_update_interfaces(ACPI_DISABLE_ALL_STRINGS);
+			osi_linux.default_disabling = ACPI_DISABLE_ALL_STRINGS;
 			for (i = 0; i < OSI_STRING_ENTRIES_MAX; i++) {
 				osi = &osi_setup_entries[i];
 				osi->enable = false;
@@ -1520,10 +1523,13 @@ static void __init acpi_osi_setup_late(v
 	acpi_status status;
 
 	if (osi_linux.default_disabling) {
-		status = acpi_update_interfaces(ACPI_DISABLE_ALL_VENDOR_STRINGS);
+		status = acpi_update_interfaces(osi_linux.default_disabling);
 
 		if (ACPI_SUCCESS(status))
-			printk(KERN_INFO PREFIX "Disabled all _OSI OS vendors\n");
+			printk(KERN_INFO PREFIX "Disabled all _OSI OS vendors%s\n",
+				osi_linux.default_disabling ==
+				ACPI_DISABLE_ALL_STRINGS ?
+				" and feature groups" : "");
 	}
 
 	for (i = 0; i < OSI_STRING_ENTRIES_MAX; i++) {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/acpi/pci_irq.c linux-libre-4.4.107-gnu/drivers/acpi/pci_irq.c
--- linux-libre-4.4-gnu/drivers/acpi/pci_irq.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/acpi/pci_irq.c	2017-12-20 04:05:01.000000000 -0500
@@ -409,7 +409,7 @@ int acpi_pci_irq_enable(struct pci_dev *
 		return 0;
 	}
 
-	if (pci_has_managed_irq(dev))
+	if (dev->irq_managed && dev->irq > 0)
 		return 0;
 
 	entry = acpi_pci_irq_lookup(dev, pin);
@@ -454,7 +454,8 @@ int acpi_pci_irq_enable(struct pci_dev *
 		kfree(entry);
 		return rc;
 	}
-	pci_set_managed_irq(dev, rc);
+	dev->irq = rc;
+	dev->irq_managed = 1;
 
 	if (link)
 		snprintf(link_desc, sizeof(link_desc), " -> Link[%s]", link);
@@ -477,9 +478,17 @@ void acpi_pci_irq_disable(struct pci_dev
 	u8 pin;
 
 	pin = dev->pin;
-	if (!pin || !pci_has_managed_irq(dev))
+	if (!pin || !dev->irq_managed || dev->irq <= 0)
 		return;
 
+	/* Keep IOAPIC pin configuration when suspending */
+	if (dev->dev.power.is_prepared)
+		return;
+#ifdef	CONFIG_PM
+	if (dev->dev.power.runtime_status == RPM_SUSPENDING)
+		return;
+#endif
+
 	entry = acpi_pci_irq_lookup(dev, pin);
 	if (!entry)
 		return;
@@ -499,6 +508,6 @@ void acpi_pci_irq_disable(struct pci_dev
 	dev_dbg(&dev->dev, "PCI INT %c disabled\n", pin_name(pin));
 	if (gsi >= 0) {
 		acpi_unregister_gsi(gsi);
-		pci_reset_managed_irq(dev);
+		dev->irq_managed = 0;
 	}
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/acpi/power.c linux-libre-4.4.107-gnu/drivers/acpi/power.c
--- linux-libre-4.4-gnu/drivers/acpi/power.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/acpi/power.c	2017-12-20 04:05:01.000000000 -0500
@@ -200,6 +200,7 @@ static int acpi_power_get_list_state(str
 		return -EINVAL;
 
 	/* The state of the list is 'on' IFF all resources are 'on'. */
+	cur_state = 0;
 	list_for_each_entry(entry, list, node) {
 		struct acpi_power_resource *resource = entry->resource;
 		acpi_handle handle = resource->device.handle;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/acpi/resource.c linux-libre-4.4.107-gnu/drivers/acpi/resource.c
--- linux-libre-4.4-gnu/drivers/acpi/resource.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/acpi/resource.c	2017-12-20 04:05:01.000000000 -0500
@@ -26,8 +26,20 @@
 
 #ifdef CONFIG_X86
 #define valid_IRQ(i) (((i) != 0) && ((i) != 2))
+static inline bool acpi_iospace_resource_valid(struct resource *res)
+{
+	/* On X86 IO space is limited to the [0 - 64K] IO port range */
+	return res->end < 0x10003;
+}
 #else
 #define valid_IRQ(i) (true)
+/*
+ * ACPI IO descriptors on arches other than X86 contain MMIO CPU physical
+ * addresses mapping IO space in CPU physical address space, IO space
+ * resources can be placed anywhere in the 64-bit physical address space.
+ */
+static inline bool
+acpi_iospace_resource_valid(struct resource *res) { return true; }
 #endif
 
 static bool acpi_dev_resource_len_valid(u64 start, u64 end, u64 len, bool io)
@@ -126,7 +138,7 @@ static void acpi_dev_ioresource_flags(st
 	if (!acpi_dev_resource_len_valid(res->start, res->end, len, true))
 		res->flags |= IORESOURCE_DISABLED | IORESOURCE_UNSET;
 
-	if (res->end >= 0x10003)
+	if (!acpi_iospace_resource_valid(res))
 		res->flags |= IORESOURCE_DISABLED | IORESOURCE_UNSET;
 
 	if (io_decode == ACPI_DECODE_16)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/acpi/scan.c linux-libre-4.4.107-gnu/drivers/acpi/scan.c
--- linux-libre-4.4-gnu/drivers/acpi/scan.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/acpi/scan.c	2017-12-20 04:05:01.000000000 -0500
@@ -1958,7 +1958,7 @@ int __init acpi_scan_init(void)
 
 static struct acpi_probe_entry *ape;
 static int acpi_probe_count;
-static DEFINE_SPINLOCK(acpi_probe_lock);
+static DEFINE_MUTEX(acpi_probe_mutex);
 
 static int __init acpi_match_madt(struct acpi_subtable_header *header,
 				  const unsigned long end)
@@ -1977,7 +1977,7 @@ int __init __acpi_probe_device_table(str
 	if (acpi_disabled)
 		return 0;
 
-	spin_lock(&acpi_probe_lock);
+	mutex_lock(&acpi_probe_mutex);
 	for (ape = ap_head; nr; ape++, nr--) {
 		if (ACPI_COMPARE_NAME(ACPI_SIG_MADT, ape->id)) {
 			acpi_probe_count = 0;
@@ -1990,7 +1990,7 @@ int __init __acpi_probe_device_table(str
 				count++;
 		}
 	}
-	spin_unlock(&acpi_probe_lock);
+	mutex_unlock(&acpi_probe_mutex);
 
 	return count;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/acpi/sleep.c linux-libre-4.4.107-gnu/drivers/acpi/sleep.c
--- linux-libre-4.4-gnu/drivers/acpi/sleep.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/acpi/sleep.c	2017-12-20 04:05:01.000000000 -0500
@@ -714,6 +714,7 @@ static int acpi_hibernation_enter(void)
 
 static void acpi_hibernation_leave(void)
 {
+	pm_set_resume_via_firmware();
 	/*
 	 * If ACPI is not enabled by the BIOS and the boot kernel, we need to
 	 * enable it here.
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/acpi/sysfs.c linux-libre-4.4.107-gnu/drivers/acpi/sysfs.c
--- linux-libre-4.4-gnu/drivers/acpi/sysfs.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/acpi/sysfs.c	2017-12-20 04:05:01.000000000 -0500
@@ -555,23 +555,22 @@ static void acpi_global_event_handler(u3
 static int get_status(u32 index, acpi_event_status *status,
 		      acpi_handle *handle)
 {
-	int result = 0;
+	int result;
 
 	if (index >= num_gpes + ACPI_NUM_FIXED_EVENTS)
-		goto end;
+		return -EINVAL;
 
 	if (index < num_gpes) {
 		result = acpi_get_gpe_device(index, handle);
 		if (result) {
 			ACPI_EXCEPTION((AE_INFO, AE_NOT_FOUND,
 					"Invalid GPE 0x%x", index));
-			goto end;
+			return result;
 		}
 		result = acpi_get_gpe_status(*handle, index, status);
 	} else if (index < (num_gpes + ACPI_NUM_FIXED_EVENTS))
 		result = acpi_get_event_status(index - num_gpes, status);
 
-end:
 	return result;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/acpi/video_detect.c linux-libre-4.4.107-gnu/drivers/acpi/video_detect.c
--- linux-libre-4.4-gnu/drivers/acpi/video_detect.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/acpi/video_detect.c	2017-12-20 04:05:01.000000000 -0500
@@ -135,14 +135,6 @@ static const struct dmi_system_id video_
 		DMI_MATCH(DMI_PRODUCT_NAME, "UL30A"),
 		},
 	},
-	{
-	.callback = video_detect_force_vendor,
-	.ident = "Dell Inspiron 5737",
-	.matches = {
-		DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
-		DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5737"),
-		},
-	},
 
 	/*
 	 * These models have a working acpi_video backlight control, and using
@@ -279,6 +271,26 @@ static const struct dmi_system_id video_
 		DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro12,1"),
 		},
 	},
+	{
+	 /* https://bugzilla.redhat.com/show_bug.cgi?id=1123661 */
+	 .callback = video_detect_force_native,
+	 .ident = "Dell XPS 17 L702X",
+	 .matches = {
+		DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+		DMI_MATCH(DMI_PRODUCT_NAME, "Dell System XPS L702X"),
+		},
+	},
+	{
+	/* https://bugzilla.redhat.com/show_bug.cgi?id=1204476 */
+	/* https://bugs.launchpad.net/ubuntu/+source/linux-lts-trusty/+bug/1416940 */
+	.callback = video_detect_force_native,
+	.ident = "HP Pavilion dv6",
+	.matches = {
+		DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
+		DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dv6 Notebook PC"),
+		},
+	},
+
 	{ },
 };
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/android/binder.c linux-libre-4.4.107-gnu/drivers/android/binder.c
--- linux-libre-4.4-gnu/drivers/android/binder.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/android/binder.c	2017-12-20 04:05:01.000000000 -0500
@@ -1003,7 +1003,7 @@ static int binder_dec_node(struct binder
 
 
 static struct binder_ref *binder_get_ref(struct binder_proc *proc,
-					 uint32_t desc)
+					 u32 desc, bool need_strong_ref)
 {
 	struct rb_node *n = proc->refs_by_desc.rb_node;
 	struct binder_ref *ref;
@@ -1011,12 +1011,16 @@ static struct binder_ref *binder_get_ref
 	while (n) {
 		ref = rb_entry(n, struct binder_ref, rb_node_desc);
 
-		if (desc < ref->desc)
+		if (desc < ref->desc) {
 			n = n->rb_left;
-		else if (desc > ref->desc)
+		} else if (desc > ref->desc) {
 			n = n->rb_right;
-		else
+		} else if (need_strong_ref && !ref->strong) {
+			binder_user_error("tried to use weak ref as strong ref\n");
+			return NULL;
+		} else {
 			return ref;
+		}
 	}
 	return NULL;
 }
@@ -1286,7 +1290,10 @@ static void binder_transaction_buffer_re
 		} break;
 		case BINDER_TYPE_HANDLE:
 		case BINDER_TYPE_WEAK_HANDLE: {
-			struct binder_ref *ref = binder_get_ref(proc, fp->handle);
+			struct binder_ref *ref;
+
+			ref = binder_get_ref(proc, fp->handle,
+					     fp->type == BINDER_TYPE_HANDLE);
 
 			if (ref == NULL) {
 				pr_err("transaction release %d bad handle %d\n",
@@ -1380,7 +1387,7 @@ static void binder_transaction(struct bi
 		if (tr->target.handle) {
 			struct binder_ref *ref;
 
-			ref = binder_get_ref(proc, tr->target.handle);
+			ref = binder_get_ref(proc, tr->target.handle, true);
 			if (ref == NULL) {
 				binder_user_error("%d:%d got transaction to invalid handle\n",
 					proc->pid, thread->pid);
@@ -1571,7 +1578,9 @@ static void binder_transaction(struct bi
 				fp->type = BINDER_TYPE_HANDLE;
 			else
 				fp->type = BINDER_TYPE_WEAK_HANDLE;
+			fp->binder = 0;
 			fp->handle = ref->desc;
+			fp->cookie = 0;
 			binder_inc_ref(ref, fp->type == BINDER_TYPE_HANDLE,
 				       &thread->todo);
 
@@ -1583,7 +1592,10 @@ static void binder_transaction(struct bi
 		} break;
 		case BINDER_TYPE_HANDLE:
 		case BINDER_TYPE_WEAK_HANDLE: {
-			struct binder_ref *ref = binder_get_ref(proc, fp->handle);
+			struct binder_ref *ref;
+
+			ref = binder_get_ref(proc, fp->handle,
+					     fp->type == BINDER_TYPE_HANDLE);
 
 			if (ref == NULL) {
 				binder_user_error("%d:%d got transaction with invalid handle, %d\n",
@@ -1618,7 +1630,9 @@ static void binder_transaction(struct bi
 					return_error = BR_FAILED_REPLY;
 					goto err_binder_get_ref_for_node_failed;
 				}
+				fp->binder = 0;
 				fp->handle = new_ref->desc;
+				fp->cookie = 0;
 				binder_inc_ref(new_ref, fp->type == BINDER_TYPE_HANDLE, NULL);
 				trace_binder_transaction_ref_to_ref(t, ref,
 								    new_ref);
@@ -1672,6 +1686,7 @@ static void binder_transaction(struct bi
 			binder_debug(BINDER_DEBUG_TRANSACTION,
 				     "        fd %d -> %d\n", fp->handle, target_fd);
 			/* TODO: fput? */
+			fp->binder = 0;
 			fp->handle = target_fd;
 		} break;
 
@@ -1703,8 +1718,12 @@ static void binder_transaction(struct bi
 	list_add_tail(&t->work.entry, target_list);
 	tcomplete->type = BINDER_WORK_TRANSACTION_COMPLETE;
 	list_add_tail(&tcomplete->entry, &thread->todo);
-	if (target_wait)
-		wake_up_interruptible(target_wait);
+	if (target_wait) {
+		if (reply || !(t->flags & TF_ONE_WAY))
+			wake_up_interruptible_sync(target_wait);
+		else
+			wake_up_interruptible(target_wait);
+	}
 	return;
 
 err_get_unused_fd_failed:
@@ -1794,7 +1813,9 @@ static int binder_thread_write(struct bi
 						ref->desc);
 				}
 			} else
-				ref = binder_get_ref(proc, target);
+				ref = binder_get_ref(proc, target,
+						     cmd == BC_ACQUIRE ||
+						     cmd == BC_RELEASE);
 			if (ref == NULL) {
 				binder_user_error("%d:%d refcount change on invalid ref %d\n",
 					proc->pid, thread->pid, target);
@@ -1990,7 +2011,7 @@ static int binder_thread_write(struct bi
 			if (get_user(cookie, (binder_uintptr_t __user *)ptr))
 				return -EFAULT;
 			ptr += sizeof(binder_uintptr_t);
-			ref = binder_get_ref(proc, target);
+			ref = binder_get_ref(proc, target, false);
 			if (ref == NULL) {
 				binder_user_error("%d:%d %s invalid ref %d\n",
 					proc->pid, thread->pid,
@@ -2074,7 +2095,7 @@ static int binder_thread_write(struct bi
 			if (get_user(cookie, (binder_uintptr_t __user *)ptr))
 				return -EFAULT;
 
-			ptr += sizeof(void *);
+			ptr += sizeof(cookie);
 			list_for_each_entry(w, &proc->delivered_death, entry) {
 				struct binder_ref_death *tmp_death = container_of(w, struct binder_ref_death, work);
 
@@ -2848,7 +2869,7 @@ static int binder_mmap(struct file *filp
 	const char *failure_string;
 	struct binder_buffer *buffer;
 
-	if (proc->tsk != current)
+	if (proc->tsk != current->group_leader)
 		return -EINVAL;
 
 	if ((vma->vm_end - vma->vm_start) > SZ_4M)
@@ -2949,8 +2970,8 @@ static int binder_open(struct inode *nod
 	proc = kzalloc(sizeof(*proc), GFP_KERNEL);
 	if (proc == NULL)
 		return -ENOMEM;
-	get_task_struct(current);
-	proc->tsk = current;
+	get_task_struct(current->group_leader);
+	proc->tsk = current->group_leader;
 	INIT_LIST_HEAD(&proc->todo);
 	init_waitqueue_head(&proc->wait);
 	proc->default_priority = task_nice(current);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/ata/ahci.c linux-libre-4.4.107-gnu/drivers/ata/ahci.c
--- linux-libre-4.4-gnu/drivers/ata/ahci.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/ata/ahci.c	2017-12-20 04:05:01.000000000 -0500
@@ -264,6 +264,26 @@ static const struct pci_device_id ahci_p
 	{ PCI_VDEVICE(INTEL, 0x3b2b), board_ahci }, /* PCH RAID */
 	{ PCI_VDEVICE(INTEL, 0x3b2c), board_ahci }, /* PCH RAID */
 	{ PCI_VDEVICE(INTEL, 0x3b2f), board_ahci }, /* PCH AHCI */
+	{ PCI_VDEVICE(INTEL, 0x19b0), board_ahci }, /* DNV AHCI */
+	{ PCI_VDEVICE(INTEL, 0x19b1), board_ahci }, /* DNV AHCI */
+	{ PCI_VDEVICE(INTEL, 0x19b2), board_ahci }, /* DNV AHCI */
+	{ PCI_VDEVICE(INTEL, 0x19b3), board_ahci }, /* DNV AHCI */
+	{ PCI_VDEVICE(INTEL, 0x19b4), board_ahci }, /* DNV AHCI */
+	{ PCI_VDEVICE(INTEL, 0x19b5), board_ahci }, /* DNV AHCI */
+	{ PCI_VDEVICE(INTEL, 0x19b6), board_ahci }, /* DNV AHCI */
+	{ PCI_VDEVICE(INTEL, 0x19b7), board_ahci }, /* DNV AHCI */
+	{ PCI_VDEVICE(INTEL, 0x19bE), board_ahci }, /* DNV AHCI */
+	{ PCI_VDEVICE(INTEL, 0x19bF), board_ahci }, /* DNV AHCI */
+	{ PCI_VDEVICE(INTEL, 0x19c0), board_ahci }, /* DNV AHCI */
+	{ PCI_VDEVICE(INTEL, 0x19c1), board_ahci }, /* DNV AHCI */
+	{ PCI_VDEVICE(INTEL, 0x19c2), board_ahci }, /* DNV AHCI */
+	{ PCI_VDEVICE(INTEL, 0x19c3), board_ahci }, /* DNV AHCI */
+	{ PCI_VDEVICE(INTEL, 0x19c4), board_ahci }, /* DNV AHCI */
+	{ PCI_VDEVICE(INTEL, 0x19c5), board_ahci }, /* DNV AHCI */
+	{ PCI_VDEVICE(INTEL, 0x19c6), board_ahci }, /* DNV AHCI */
+	{ PCI_VDEVICE(INTEL, 0x19c7), board_ahci }, /* DNV AHCI */
+	{ PCI_VDEVICE(INTEL, 0x19cE), board_ahci }, /* DNV AHCI */
+	{ PCI_VDEVICE(INTEL, 0x19cF), board_ahci }, /* DNV AHCI */
 	{ PCI_VDEVICE(INTEL, 0x1c02), board_ahci }, /* CPT AHCI */
 	{ PCI_VDEVICE(INTEL, 0x1c03), board_ahci }, /* CPT AHCI */
 	{ PCI_VDEVICE(INTEL, 0x1c04), board_ahci }, /* CPT RAID */
@@ -347,15 +367,21 @@ static const struct pci_device_id ahci_p
 	{ PCI_VDEVICE(INTEL, 0xa107), board_ahci }, /* Sunrise Point-H RAID */
 	{ PCI_VDEVICE(INTEL, 0xa10f), board_ahci }, /* Sunrise Point-H RAID */
 	{ PCI_VDEVICE(INTEL, 0x2822), board_ahci }, /* Lewisburg RAID*/
+	{ PCI_VDEVICE(INTEL, 0x2823), board_ahci }, /* Lewisburg AHCI*/
 	{ PCI_VDEVICE(INTEL, 0x2826), board_ahci }, /* Lewisburg RAID*/
+	{ PCI_VDEVICE(INTEL, 0x2827), board_ahci }, /* Lewisburg RAID*/
 	{ PCI_VDEVICE(INTEL, 0xa182), board_ahci }, /* Lewisburg AHCI*/
 	{ PCI_VDEVICE(INTEL, 0xa184), board_ahci }, /* Lewisburg RAID*/
 	{ PCI_VDEVICE(INTEL, 0xa186), board_ahci }, /* Lewisburg RAID*/
 	{ PCI_VDEVICE(INTEL, 0xa18e), board_ahci }, /* Lewisburg RAID*/
+	{ PCI_VDEVICE(INTEL, 0xa1d2), board_ahci }, /* Lewisburg RAID*/
+	{ PCI_VDEVICE(INTEL, 0xa1d6), board_ahci }, /* Lewisburg RAID*/
 	{ PCI_VDEVICE(INTEL, 0xa202), board_ahci }, /* Lewisburg AHCI*/
 	{ PCI_VDEVICE(INTEL, 0xa204), board_ahci }, /* Lewisburg RAID*/
 	{ PCI_VDEVICE(INTEL, 0xa206), board_ahci }, /* Lewisburg RAID*/
 	{ PCI_VDEVICE(INTEL, 0xa20e), board_ahci }, /* Lewisburg RAID*/
+	{ PCI_VDEVICE(INTEL, 0xa252), board_ahci }, /* Lewisburg RAID*/
+	{ PCI_VDEVICE(INTEL, 0xa256), board_ahci }, /* Lewisburg RAID*/
 
 	/* JMicron 360/1/3/5/6, match class to avoid IDE function */
 	{ PCI_VENDOR_ID_JMICRON, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/ata/ahci_platform.c linux-libre-4.4.107-gnu/drivers/ata/ahci_platform.c
--- linux-libre-4.4-gnu/drivers/ata/ahci_platform.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/ata/ahci_platform.c	2017-12-20 04:05:01.000000000 -0500
@@ -51,6 +51,9 @@ static int ahci_probe(struct platform_de
 	if (rc)
 		return rc;
 
+	of_property_read_u32(dev->of_node,
+			     "ports-implemented", &hpriv->force_port_map);
+
 	if (of_device_is_compatible(dev->of_node, "hisilicon,hisi-ahci"))
 		hpriv->flags |= AHCI_HFLAG_NO_FBS | AHCI_HFLAG_NO_NCQ;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/ata/ahci_xgene.c linux-libre-4.4.107-gnu/drivers/ata/ahci_xgene.c
--- linux-libre-4.4-gnu/drivers/ata/ahci_xgene.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/ata/ahci_xgene.c	2017-12-20 04:05:01.000000000 -0500
@@ -739,9 +739,9 @@ static int xgene_ahci_probe(struct platf
 				dev_warn(&pdev->dev, "%s: Error reading device info. Assume version1\n",
 					__func__);
 				version = XGENE_AHCI_V1;
-			}
-			if (info->valid & ACPI_VALID_CID)
+			} else if (info->valid & ACPI_VALID_CID) {
 				version = XGENE_AHCI_V2;
+			}
 		}
 	}
 #endif
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/ata/Kconfig linux-libre-4.4.107-gnu/drivers/ata/Kconfig
--- linux-libre-4.4-gnu/drivers/ata/Kconfig	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/ata/Kconfig	2017-12-20 04:05:01.000000000 -0500
@@ -272,6 +272,7 @@ config SATA_SX4
 
 config ATA_BMDMA
 	bool "ATA BMDMA support"
+	depends on HAS_DMA
 	default y
 	help
 	  This option adds support for SFF ATA controllers with BMDMA
@@ -318,6 +319,7 @@ config SATA_DWC_VDEBUG
 
 config SATA_HIGHBANK
 	tristate "Calxeda Highbank SATA support"
+	depends on HAS_DMA
 	depends on ARCH_HIGHBANK || COMPILE_TEST
 	help
 	  This option enables support for the Calxeda Highbank SoC's
@@ -327,6 +329,7 @@ config SATA_HIGHBANK
 
 config SATA_MV
 	tristate "Marvell SATA support"
+	depends on HAS_DMA
 	depends on PCI || ARCH_DOVE || ARCH_MV78XX0 || \
 		   ARCH_MVEBU || ARCH_ORION5X || COMPILE_TEST
 	select GENERIC_PHY
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/ata/libahci.c linux-libre-4.4.107-gnu/drivers/ata/libahci.c
--- linux-libre-4.4-gnu/drivers/ata/libahci.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/ata/libahci.c	2017-12-20 04:05:01.000000000 -0500
@@ -467,6 +467,7 @@ void ahci_save_initial_config(struct dev
 		dev_info(dev, "forcing port_map 0x%x -> 0x%x\n",
 			 port_map, hpriv->force_port_map);
 		port_map = hpriv->force_port_map;
+		hpriv->saved_port_map = port_map;
 	}
 
 	if (hpriv->mask_port_map) {
@@ -495,8 +496,8 @@ void ahci_save_initial_config(struct dev
 		}
 	}
 
-	/* fabricate port_map from cap.nr_ports */
-	if (!port_map) {
+	/* fabricate port_map from cap.nr_ports for < AHCI 1.3 */
+	if (!port_map && vers < 0x10300) {
 		port_map = (1 << ahci_nr_ports(cap)) - 1;
 		dev_warn(dev, "forcing PORTS_IMPL to 0x%x\n", port_map);
 
@@ -1142,8 +1143,7 @@ static void ahci_port_init(struct device
 
 	/* mark esata ports */
 	tmp = readl(port_mmio + PORT_CMD);
-	if ((tmp & PORT_CMD_HPCP) ||
-	    ((tmp & PORT_CMD_ESP) && (hpriv->cap & HOST_CAP_SXS)))
+	if ((tmp & PORT_CMD_ESP) && (hpriv->cap & HOST_CAP_SXS))
 		ap->pflags |= ATA_PFLAG_EXTERNAL;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/ata/libata-core.c linux-libre-4.4.107-gnu/drivers/ata/libata-core.c
--- linux-libre-4.4-gnu/drivers/ata/libata-core.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/ata/libata-core.c	2017-12-20 04:05:01.000000000 -0500
@@ -4138,6 +4138,12 @@ static const struct ata_blacklist_entry
 	 */
 	{ "ST380013AS",		"3.20",		ATA_HORKAGE_MAX_SEC_1024 },
 
+	/*
+	 * These devices time out with higher max sects.
+	 * https://bugzilla.kernel.org/show_bug.cgi?id=121671
+	 */
+	{ "LITEON CX1-JB*-HP",	NULL,		ATA_HORKAGE_MAX_SEC_1024 },
+
 	/* Devices we expect to fail diagnostics */
 
 	/* Devices where NCQ should be avoided */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/ata/libata-eh.c linux-libre-4.4.107-gnu/drivers/ata/libata-eh.c
--- linux-libre-4.4-gnu/drivers/ata/libata-eh.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/ata/libata-eh.c	2017-12-20 04:05:01.000000000 -0500
@@ -606,7 +606,7 @@ void ata_scsi_error(struct Scsi_Host *ho
 	ata_scsi_port_error_handler(host, ap);
 
 	/* finish or retry handled scmd's and clean up */
-	WARN_ON(host->host_failed || !list_empty(&eh_work_q));
+	WARN_ON(!list_empty(&eh_work_q));
 
 	DPRINTK("EXIT\n");
 }
@@ -2245,8 +2245,8 @@ static void ata_eh_link_autopsy(struct a
 		if (dev->flags & ATA_DFLAG_DUBIOUS_XFER)
 			eflags |= ATA_EFLAG_DUBIOUS_XFER;
 		ehc->i.action |= ata_eh_speed_down(dev, eflags, all_err_mask);
+		trace_ata_eh_link_autopsy(dev, ehc->i.action, all_err_mask);
 	}
-	trace_ata_eh_link_autopsy(dev, ehc->i.action, all_err_mask);
 	DPRINTK("EXIT\n");
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/ata/libata-scsi.c linux-libre-4.4.107-gnu/drivers/ata/libata-scsi.c
--- linux-libre-4.4-gnu/drivers/ata/libata-scsi.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/ata/libata-scsi.c	2017-12-20 04:05:01.000000000 -0500
@@ -675,19 +675,18 @@ static int ata_ioc32(struct ata_port *ap
 int ata_sas_scsi_ioctl(struct ata_port *ap, struct scsi_device *scsidev,
 		     int cmd, void __user *arg)
 {
-	int val = -EINVAL, rc = -EINVAL;
+	unsigned long val;
+	int rc = -EINVAL;
 	unsigned long flags;
 
 	switch (cmd) {
-	case ATA_IOC_GET_IO32:
+	case HDIO_GET_32BIT:
 		spin_lock_irqsave(ap->lock, flags);
 		val = ata_ioc32(ap);
 		spin_unlock_irqrestore(ap->lock, flags);
-		if (copy_to_user(arg, &val, 1))
-			return -EFAULT;
-		return 0;
+		return put_user(val, (unsigned long __user *)arg);
 
-	case ATA_IOC_SET_IO32:
+	case HDIO_SET_32BIT:
 		val = (unsigned long) arg;
 		rc = 0;
 		spin_lock_irqsave(ap->lock, flags);
@@ -2833,10 +2832,12 @@ static unsigned int atapi_xlat(struct at
 static struct ata_device *ata_find_dev(struct ata_port *ap, int devno)
 {
 	if (!sata_pmp_attached(ap)) {
-		if (likely(devno < ata_link_max_devices(&ap->link)))
+		if (likely(devno >= 0 &&
+			   devno < ata_link_max_devices(&ap->link)))
 			return &ap->link.device[devno];
 	} else {
-		if (likely(devno < ap->nr_pmp_links))
+		if (likely(devno >= 0 &&
+			   devno < ap->nr_pmp_links))
 			return &ap->pmp_link[devno].device[0];
 	}
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/ata/libata-sff.c linux-libre-4.4.107-gnu/drivers/ata/libata-sff.c
--- linux-libre-4.4-gnu/drivers/ata/libata-sff.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/ata/libata-sff.c	2017-12-20 04:05:01.000000000 -0500
@@ -997,12 +997,9 @@ static inline int ata_hsm_ok_in_wq(struc
 static void ata_hsm_qc_complete(struct ata_queued_cmd *qc, int in_wq)
 {
 	struct ata_port *ap = qc->ap;
-	unsigned long flags;
 
 	if (ap->ops->error_handler) {
 		if (in_wq) {
-			spin_lock_irqsave(ap->lock, flags);
-
 			/* EH might have kicked in while host lock is
 			 * released.
 			 */
@@ -1014,8 +1011,6 @@ static void ata_hsm_qc_complete(struct a
 				} else
 					ata_port_freeze(ap);
 			}
-
-			spin_unlock_irqrestore(ap->lock, flags);
 		} else {
 			if (likely(!(qc->err_mask & AC_ERR_HSM)))
 				ata_qc_complete(qc);
@@ -1024,10 +1019,8 @@ static void ata_hsm_qc_complete(struct a
 		}
 	} else {
 		if (in_wq) {
-			spin_lock_irqsave(ap->lock, flags);
 			ata_sff_irq_on(ap);
 			ata_qc_complete(qc);
-			spin_unlock_irqrestore(ap->lock, flags);
 		} else
 			ata_qc_complete(qc);
 	}
@@ -1048,9 +1041,10 @@ int ata_sff_hsm_move(struct ata_port *ap
 {
 	struct ata_link *link = qc->dev->link;
 	struct ata_eh_info *ehi = &link->eh_info;
-	unsigned long flags = 0;
 	int poll_next;
 
+	lockdep_assert_held(ap->lock);
+
 	WARN_ON_ONCE((qc->flags & ATA_QCFLAG_ACTIVE) == 0);
 
 	/* Make sure ata_sff_qc_issue() does not throw things
@@ -1112,14 +1106,6 @@ fsm_start:
 			}
 		}
 
-		/* Send the CDB (atapi) or the first data block (ata pio out).
-		 * During the state transition, interrupt handler shouldn't
-		 * be invoked before the data transfer is complete and
-		 * hsm_task_state is changed. Hence, the following locking.
-		 */
-		if (in_wq)
-			spin_lock_irqsave(ap->lock, flags);
-
 		if (qc->tf.protocol == ATA_PROT_PIO) {
 			/* PIO data out protocol.
 			 * send first data block.
@@ -1135,9 +1121,6 @@ fsm_start:
 			/* send CDB */
 			atapi_send_cdb(ap, qc);
 
-		if (in_wq)
-			spin_unlock_irqrestore(ap->lock, flags);
-
 		/* if polling, ata_sff_pio_task() handles the rest.
 		 * otherwise, interrupt handler takes over from here.
 		 */
@@ -1361,12 +1344,14 @@ static void ata_sff_pio_task(struct work
 	u8 status;
 	int poll_next;
 
+	spin_lock_irq(ap->lock);
+
 	BUG_ON(ap->sff_pio_task_link == NULL);
 	/* qc can be NULL if timeout occurred */
 	qc = ata_qc_from_tag(ap, link->active_tag);
 	if (!qc) {
 		ap->sff_pio_task_link = NULL;
-		return;
+		goto out_unlock;
 	}
 
 fsm_start:
@@ -1381,11 +1366,14 @@ fsm_start:
 	 */
 	status = ata_sff_busy_wait(ap, ATA_BUSY, 5);
 	if (status & ATA_BUSY) {
+		spin_unlock_irq(ap->lock);
 		ata_msleep(ap, 2);
+		spin_lock_irq(ap->lock);
+
 		status = ata_sff_busy_wait(ap, ATA_BUSY, 10);
 		if (status & ATA_BUSY) {
 			ata_sff_queue_pio_task(link, ATA_SHORT_PAUSE);
-			return;
+			goto out_unlock;
 		}
 	}
 
@@ -1402,6 +1390,8 @@ fsm_start:
 	 */
 	if (poll_next)
 		goto fsm_start;
+out_unlock:
+	spin_unlock_irq(ap->lock);
 }
 
 /**
@@ -1490,7 +1480,6 @@ unsigned int ata_sff_qc_issue(struct ata
 		break;
 
 	default:
-		WARN_ON_ONCE(1);
 		return AC_ERR_SYSTEM;
 	}
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/ata/libata-transport.c linux-libre-4.4.107-gnu/drivers/ata/libata-transport.c
--- linux-libre-4.4-gnu/drivers/ata/libata-transport.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/ata/libata-transport.c	2017-12-20 04:05:01.000000000 -0500
@@ -224,7 +224,6 @@ static DECLARE_TRANSPORT_CLASS(ata_port_
 
 static void ata_tport_release(struct device *dev)
 {
-	put_device(dev->parent);
 }
 
 /**
@@ -284,7 +283,7 @@ int ata_tport_add(struct device *parent,
 	device_initialize(dev);
 	dev->type = &ata_port_type;
 
-	dev->parent = get_device(parent);
+	dev->parent = parent;
 	dev->release = ata_tport_release;
 	dev_set_name(dev, "ata%d", ap->print_id);
 	transport_setup_device(dev);
@@ -348,7 +347,6 @@ static DECLARE_TRANSPORT_CLASS(ata_link_
 
 static void ata_tlink_release(struct device *dev)
 {
-	put_device(dev->parent);
 }
 
 /**
@@ -410,7 +408,7 @@ int ata_tlink_add(struct ata_link *link)
 	int error;
 
 	device_initialize(dev);
-	dev->parent = get_device(&ap->tdev);
+	dev->parent = &ap->tdev;
 	dev->release = ata_tlink_release;
 	if (ata_is_host_link(link))
 		dev_set_name(dev, "link%d", ap->print_id);
@@ -588,7 +586,6 @@ static DECLARE_TRANSPORT_CLASS(ata_dev_c
 
 static void ata_tdev_release(struct device *dev)
 {
-	put_device(dev->parent);
 }
 
 /**
@@ -661,7 +658,7 @@ static int ata_tdev_add(struct ata_devic
 	int error;
 
 	device_initialize(dev);
-	dev->parent = get_device(&link->tdev);
+	dev->parent = &link->tdev;
 	dev->release = ata_tdev_release;
 	if (ata_is_host_link(link))
 		dev_set_name(dev, "dev%d.%d", ap->print_id,ata_dev->devno);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/ata/pata_amd.c linux-libre-4.4.107-gnu/drivers/ata/pata_amd.c
--- linux-libre-4.4-gnu/drivers/ata/pata_amd.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/ata/pata_amd.c	2017-12-20 04:05:01.000000000 -0500
@@ -616,6 +616,7 @@ static const struct pci_device_id amd[]
 	{ PCI_VDEVICE(NVIDIA,	PCI_DEVICE_ID_NVIDIA_NFORCE_MCP73_IDE),	8 },
 	{ PCI_VDEVICE(NVIDIA,	PCI_DEVICE_ID_NVIDIA_NFORCE_MCP77_IDE),	8 },
 	{ PCI_VDEVICE(AMD,	PCI_DEVICE_ID_AMD_CS5536_IDE),		9 },
+	{ PCI_VDEVICE(AMD,	PCI_DEVICE_ID_AMD_CS5536_DEV_IDE),	9 },
 
 	{ },
 };
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/ata/pata_cs5536.c linux-libre-4.4.107-gnu/drivers/ata/pata_cs5536.c
--- linux-libre-4.4-gnu/drivers/ata/pata_cs5536.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/ata/pata_cs5536.c	2017-12-20 04:05:01.000000000 -0500
@@ -289,6 +289,7 @@ static int cs5536_init_one(struct pci_de
 
 static const struct pci_device_id cs5536[] = {
 	{ PCI_VDEVICE(AMD,	PCI_DEVICE_ID_AMD_CS5536_IDE), },
+	{ PCI_VDEVICE(AMD,	PCI_DEVICE_ID_AMD_CS5536_DEV_IDE), },
 	{ },
 };
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/ata/pata_rb532_cf.c linux-libre-4.4.107-gnu/drivers/ata/pata_rb532_cf.c
--- linux-libre-4.4-gnu/drivers/ata/pata_rb532_cf.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/ata/pata_rb532_cf.c	2017-12-20 04:05:01.000000000 -0500
@@ -32,6 +32,8 @@
 #include <linux/libata.h>
 #include <scsi/scsi_host.h>
 
+#include <asm/mach-rc32434/rb.h>
+
 #define DRV_NAME	"pata-rb532-cf"
 #define DRV_VERSION	"0.1.0"
 #define DRV_DESC	"PATA driver for RouterBOARD 532 Compact Flash"
@@ -107,6 +109,7 @@ static int rb532_pata_driver_probe(struc
 	int gpio;
 	struct resource *res;
 	struct ata_host *ah;
+	struct cf_device *pdata;
 	struct rb532_cf_info *info;
 	int ret;
 
@@ -122,7 +125,13 @@ static int rb532_pata_driver_probe(struc
 		return -ENOENT;
 	}
 
-	gpio = irq_to_gpio(irq);
+	pdata = dev_get_platdata(&pdev->dev);
+	if (!pdata) {
+		dev_err(&pdev->dev, "no platform data specified\n");
+		return -EINVAL;
+	}
+
+	gpio = pdata->gpio_pin;
 	if (gpio < 0) {
 		dev_err(&pdev->dev, "no GPIO found for irq%d\n", irq);
 		return -ENOENT;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/ata/sata_mv.c linux-libre-4.4.107-gnu/drivers/ata/sata_mv.c
--- linux-libre-4.4-gnu/drivers/ata/sata_mv.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/ata/sata_mv.c	2017-12-20 04:05:01.000000000 -0500
@@ -4121,6 +4121,9 @@ static int mv_platform_probe(struct plat
 	host->iomap = NULL;
 	hpriv->base = devm_ioremap(&pdev->dev, res->start,
 				   resource_size(res));
+	if (!hpriv->base)
+		return -ENOMEM;
+
 	hpriv->base -= SATAHC0_REG_BASE;
 
 	hpriv->clk = clk_get(&pdev->dev, NULL);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/atm/horizon.c linux-libre-4.4.107-gnu/drivers/atm/horizon.c
--- linux-libre-4.4-gnu/drivers/atm/horizon.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/atm/horizon.c	2017-12-20 04:05:01.000000000 -0500
@@ -2804,7 +2804,7 @@ out:
 	return err;
 
 out_free_irq:
-	free_irq(dev->irq, dev);
+	free_irq(irq, dev);
 out_free:
 	kfree(dev);
 out_release:
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/base/bus.c linux-libre-4.4.107-gnu/drivers/base/bus.c
--- linux-libre-4.4-gnu/drivers/base/bus.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/base/bus.c	2017-12-20 04:05:01.000000000 -0500
@@ -737,7 +737,7 @@ int bus_add_driver(struct device_driver
 
 out_unregister:
 	kobject_put(&priv->kobj);
-	kfree(drv->p);
+	/* drv->p is freed in driver_release()  */
 	drv->p = NULL;
 out_put_bus:
 	bus_put(bus);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/base/core.c linux-libre-4.4.107-gnu/drivers/base/core.c
--- linux-libre-4.4-gnu/drivers/base/core.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/base/core.c	2017-12-20 04:05:01.000000000 -0500
@@ -836,11 +836,29 @@ static struct kobject *get_device_parent
 	return NULL;
 }
 
+static inline bool live_in_glue_dir(struct kobject *kobj,
+				    struct device *dev)
+{
+	if (!kobj || !dev->class ||
+	    kobj->kset != &dev->class->p->glue_dirs)
+		return false;
+	return true;
+}
+
+static inline struct kobject *get_glue_dir(struct device *dev)
+{
+	return dev->kobj.parent;
+}
+
+/*
+ * make sure cleaning up dir as the last step, we need to make
+ * sure .release handler of kobject is run with holding the
+ * global lock
+ */
 static void cleanup_glue_dir(struct device *dev, struct kobject *glue_dir)
 {
 	/* see if we live in a "glue" directory */
-	if (!glue_dir || !dev->class ||
-	    glue_dir->kset != &dev->class->p->glue_dirs)
+	if (!live_in_glue_dir(glue_dir, dev))
 		return;
 
 	mutex_lock(&gdp_mutex);
@@ -848,11 +866,6 @@ static void cleanup_glue_dir(struct devi
 	mutex_unlock(&gdp_mutex);
 }
 
-static void cleanup_device_parent(struct device *dev)
-{
-	cleanup_glue_dir(dev, dev->kobj.parent);
-}
-
 static int device_add_class_symlinks(struct device *dev)
 {
 	struct device_node *of_node = dev_of_node(dev);
@@ -1028,6 +1041,7 @@ int device_add(struct device *dev)
 	struct kobject *kobj;
 	struct class_interface *class_intf;
 	int error = -EINVAL;
+	struct kobject *glue_dir = NULL;
 
 	dev = get_device(dev);
 	if (!dev)
@@ -1072,8 +1086,10 @@ int device_add(struct device *dev)
 	/* first, register with generic layer. */
 	/* we require the name to be set before, and pass NULL */
 	error = kobject_add(&dev->kobj, dev->kobj.parent, NULL);
-	if (error)
+	if (error) {
+		glue_dir = get_glue_dir(dev);
 		goto Error;
+	}
 
 	/* notify platform of device entry */
 	if (platform_notify)
@@ -1154,9 +1170,10 @@ done:
 	device_remove_file(dev, &dev_attr_uevent);
  attrError:
 	kobject_uevent(&dev->kobj, KOBJ_REMOVE);
+	glue_dir = get_glue_dir(dev);
 	kobject_del(&dev->kobj);
  Error:
-	cleanup_device_parent(dev);
+	cleanup_glue_dir(dev, glue_dir);
 	put_device(parent);
 name_error:
 	kfree(dev->p);
@@ -1232,6 +1249,7 @@ EXPORT_SYMBOL_GPL(put_device);
 void device_del(struct device *dev)
 {
 	struct device *parent = dev->parent;
+	struct kobject *glue_dir = NULL;
 	struct class_interface *class_intf;
 
 	/* Notify clients of device removal.  This call must come
@@ -1276,8 +1294,9 @@ void device_del(struct device *dev)
 		blocking_notifier_call_chain(&dev->bus->p->bus_notifier,
 					     BUS_NOTIFY_REMOVED_DEVICE, dev);
 	kobject_uevent(&dev->kobj, KOBJ_REMOVE);
-	cleanup_device_parent(dev);
+	glue_dir = get_glue_dir(dev);
 	kobject_del(&dev->kobj);
+	cleanup_glue_dir(dev, glue_dir);
 	put_device(parent);
 }
 EXPORT_SYMBOL_GPL(device_del);
@@ -2075,7 +2094,11 @@ void device_shutdown(void)
 		pm_runtime_get_noresume(dev);
 		pm_runtime_barrier(dev);
 
-		if (dev->bus && dev->bus->shutdown) {
+		if (dev->class && dev->class->shutdown) {
+			if (initcall_debug)
+				dev_info(dev, "shutdown\n");
+			dev->class->shutdown(dev);
+		} else if (dev->bus && dev->bus->shutdown) {
 			if (initcall_debug)
 				dev_info(dev, "shutdown\n");
 			dev->bus->shutdown(dev);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/base/dma-mapping.c linux-libre-4.4.107-gnu/drivers/base/dma-mapping.c
--- linux-libre-4.4-gnu/drivers/base/dma-mapping.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/base/dma-mapping.c	2017-12-20 04:05:01.000000000 -0500
@@ -335,7 +335,7 @@ void dma_common_free_remap(void *cpu_add
 		return;
 	}
 
-	unmap_kernel_range((unsigned long)cpu_addr, size);
+	unmap_kernel_range((unsigned long)cpu_addr, PAGE_ALIGN(size));
 	vunmap(cpu_addr);
 }
 #endif
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/base/firmware_class.c linux-libre-4.4.107-gnu/drivers/base/firmware_class.c
--- linux-libre-4.4-gnu/drivers/base/firmware_class.c	2016-01-10 20:54:54.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/base/firmware_class.c	2017-12-20 11:06:34.000000000 -0500
@@ -942,13 +942,14 @@ static int _request_firmware_load(struct
 		timeout = MAX_JIFFY_OFFSET;
 	}
 
-	retval = wait_for_completion_interruptible_timeout(&buf->completion,
+	timeout = wait_for_completion_interruptible_timeout(&buf->completion,
 			timeout);
-	if (retval == -ERESTARTSYS || !retval) {
+	if (timeout == -ERESTARTSYS || !timeout) {
+		retval = timeout;
 		mutex_lock(&fw_lock);
 		fw_load_abort(fw_priv);
 		mutex_unlock(&fw_lock);
-	} else if (retval > 0) {
+	} else if (timeout > 0) {
 		retval = 0;
 	}
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/base/isa.c linux-libre-4.4.107-gnu/drivers/base/isa.c
--- linux-libre-4.4-gnu/drivers/base/isa.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/base/isa.c	2017-12-20 04:05:01.000000000 -0500
@@ -39,7 +39,7 @@ static int isa_bus_probe(struct device *
 {
 	struct isa_driver *isa_driver = dev->platform_data;
 
-	if (isa_driver->probe)
+	if (isa_driver && isa_driver->probe)
 		return isa_driver->probe(dev, to_isa_dev(dev)->id);
 
 	return 0;
@@ -49,7 +49,7 @@ static int isa_bus_remove(struct device
 {
 	struct isa_driver *isa_driver = dev->platform_data;
 
-	if (isa_driver->remove)
+	if (isa_driver && isa_driver->remove)
 		return isa_driver->remove(dev, to_isa_dev(dev)->id);
 
 	return 0;
@@ -59,7 +59,7 @@ static void isa_bus_shutdown(struct devi
 {
 	struct isa_driver *isa_driver = dev->platform_data;
 
-	if (isa_driver->shutdown)
+	if (isa_driver && isa_driver->shutdown)
 		isa_driver->shutdown(dev, to_isa_dev(dev)->id);
 }
 
@@ -67,7 +67,7 @@ static int isa_bus_suspend(struct device
 {
 	struct isa_driver *isa_driver = dev->platform_data;
 
-	if (isa_driver->suspend)
+	if (isa_driver && isa_driver->suspend)
 		return isa_driver->suspend(dev, to_isa_dev(dev)->id, state);
 
 	return 0;
@@ -77,7 +77,7 @@ static int isa_bus_resume(struct device
 {
 	struct isa_driver *isa_driver = dev->platform_data;
 
-	if (isa_driver->resume)
+	if (isa_driver && isa_driver->resume)
 		return isa_driver->resume(dev, to_isa_dev(dev)->id);
 
 	return 0;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/base/memory.c linux-libre-4.4.107-gnu/drivers/base/memory.c
--- linux-libre-4.4-gnu/drivers/base/memory.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/base/memory.c	2017-12-20 04:05:01.000000000 -0500
@@ -388,30 +388,29 @@ static ssize_t show_valid_zones(struct d
 {
 	struct memory_block *mem = to_memory_block(dev);
 	unsigned long start_pfn, end_pfn;
+	unsigned long valid_start, valid_end;
 	unsigned long nr_pages = PAGES_PER_SECTION * sections_per_block;
-	struct page *first_page;
 	struct zone *zone;
 
 	start_pfn = section_nr_to_pfn(mem->start_section_nr);
 	end_pfn = start_pfn + nr_pages;
-	first_page = pfn_to_page(start_pfn);
 
 	/* The block contains more than one zone can not be offlined. */
-	if (!test_pages_in_a_zone(start_pfn, end_pfn))
+	if (!test_pages_in_a_zone(start_pfn, end_pfn, &valid_start, &valid_end))
 		return sprintf(buf, "none\n");
 
-	zone = page_zone(first_page);
+	zone = page_zone(pfn_to_page(valid_start));
 
 	if (zone_idx(zone) == ZONE_MOVABLE - 1) {
 		/*The mem block is the last memoryblock of this zone.*/
-		if (end_pfn == zone_end_pfn(zone))
+		if (valid_end == zone_end_pfn(zone))
 			return sprintf(buf, "%s %s\n",
 					zone->name, (zone + 1)->name);
 	}
 
 	if (zone_idx(zone) == ZONE_MOVABLE) {
 		/*The mem block is the first memoryblock of ZONE_MOVABLE.*/
-		if (start_pfn == zone->zone_start_pfn)
+		if (valid_start == zone->zone_start_pfn)
 			return sprintf(buf, "%s %s\n",
 					zone->name, (zone - 1)->name);
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/base/module.c linux-libre-4.4.107-gnu/drivers/base/module.c
--- linux-libre-4.4-gnu/drivers/base/module.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/base/module.c	2017-12-20 04:05:01.000000000 -0500
@@ -24,10 +24,12 @@ static char *make_driver_name(struct dev
 
 static void module_create_drivers_dir(struct module_kobject *mk)
 {
-	if (!mk || mk->drivers_dir)
-		return;
+	static DEFINE_MUTEX(drivers_dir_mutex);
 
-	mk->drivers_dir = kobject_create_and_add("drivers", &mk->kobj);
+	mutex_lock(&drivers_dir_mutex);
+	if (mk && !mk->drivers_dir)
+		mk->drivers_dir = kobject_create_and_add("drivers", &mk->kobj);
+	mutex_unlock(&drivers_dir_mutex);
 }
 
 void module_add_driver(struct module *mod, struct device_driver *drv)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/base/platform.c linux-libre-4.4.107-gnu/drivers/base/platform.c
--- linux-libre-4.4-gnu/drivers/base/platform.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/base/platform.c	2017-12-20 04:05:01.000000000 -0500
@@ -96,7 +96,7 @@ int platform_get_irq(struct platform_dev
 		int ret;
 
 		ret = of_irq_get(dev->dev.of_node, num);
-		if (ret >= 0 || ret == -EPROBE_DEFER)
+		if (ret > 0 || ret == -EPROBE_DEFER)
 			return ret;
 	}
 
@@ -154,7 +154,7 @@ int platform_get_irq_byname(struct platf
 		int ret;
 
 		ret = of_irq_get_byname(dev->dev.of_node, name);
-		if (ret >= 0 || ret == -EPROBE_DEFER)
+		if (ret > 0 || ret == -EPROBE_DEFER)
 			return ret;
 	}
 
@@ -513,10 +513,15 @@ static int platform_drv_probe(struct dev
 		return ret;
 
 	ret = dev_pm_domain_attach(_dev, true);
-	if (ret != -EPROBE_DEFER && drv->probe) {
-		ret = drv->probe(dev);
-		if (ret)
-			dev_pm_domain_detach(_dev, true);
+	if (ret != -EPROBE_DEFER) {
+		if (drv->probe) {
+			ret = drv->probe(dev);
+			if (ret)
+				dev_pm_domain_detach(_dev, true);
+		} else {
+			/* don't fail if just dev_pm_domain_attach failed */
+			ret = 0;
+		}
 	}
 
 	if (drv->prevent_deferred_probe && ret == -EPROBE_DEFER) {
@@ -802,9 +807,10 @@ static ssize_t driver_override_store(str
 				     const char *buf, size_t count)
 {
 	struct platform_device *pdev = to_platform_device(dev);
-	char *driver_override, *old = pdev->driver_override, *cp;
+	char *driver_override, *old, *cp;
 
-	if (count > PATH_MAX)
+	/* We need to keep extra room for a newline */
+	if (count >= (PAGE_SIZE - 1))
 		return -EINVAL;
 
 	driver_override = kstrndup(buf, count, GFP_KERNEL);
@@ -815,12 +821,15 @@ static ssize_t driver_override_store(str
 	if (cp)
 		*cp = '\0';
 
+	device_lock(dev);
+	old = pdev->driver_override;
 	if (strlen(driver_override)) {
 		pdev->driver_override = driver_override;
 	} else {
 		kfree(driver_override);
 		pdev->driver_override = NULL;
 	}
+	device_unlock(dev);
 
 	kfree(old);
 
@@ -831,8 +840,12 @@ static ssize_t driver_override_show(stru
 				    struct device_attribute *attr, char *buf)
 {
 	struct platform_device *pdev = to_platform_device(dev);
+	ssize_t len;
 
-	return sprintf(buf, "%s\n", pdev->driver_override);
+	device_lock(dev);
+	len = sprintf(buf, "%s\n", pdev->driver_override);
+	device_unlock(dev);
+	return len;
 }
 static DEVICE_ATTR_RW(driver_override);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/base/power/domain.c linux-libre-4.4.107-gnu/drivers/base/power/domain.c
--- linux-libre-4.4-gnu/drivers/base/power/domain.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/base/power/domain.c	2017-12-20 04:05:01.000000000 -0500
@@ -1188,7 +1188,6 @@ static struct generic_pm_domain_data *ge
 	}
 
 	dev->power.subsys_data->domain_data = &gpd_data->base;
-	dev->pm_domain = &genpd->domain;
 
 	spin_unlock_irq(&dev->power.lock);
 
@@ -1207,7 +1206,6 @@ static void genpd_free_dev_data(struct d
 {
 	spin_lock_irq(&dev->power.lock);
 
-	dev->pm_domain = NULL;
 	dev->power.subsys_data->domain_data = NULL;
 
 	spin_unlock_irq(&dev->power.lock);
@@ -1248,6 +1246,8 @@ int __pm_genpd_add_device(struct generic
 	if (ret)
 		goto out;
 
+	dev->pm_domain = &genpd->domain;
+
 	genpd->device_count++;
 	genpd->max_off_time_changed = true;
 
@@ -1299,6 +1299,8 @@ int pm_genpd_remove_device(struct generi
 	if (genpd->detach_dev)
 		genpd->detach_dev(genpd, dev);
 
+	dev->pm_domain = NULL;
+
 	list_del_init(&pdd->list_node);
 
 	mutex_unlock(&genpd->lock);
@@ -1373,7 +1375,7 @@ EXPORT_SYMBOL_GPL(pm_genpd_add_subdomain
 int pm_genpd_remove_subdomain(struct generic_pm_domain *genpd,
 			      struct generic_pm_domain *subdomain)
 {
-	struct gpd_link *link;
+	struct gpd_link *l, *link;
 	int ret = -EINVAL;
 
 	if (IS_ERR_OR_NULL(genpd) || IS_ERR_OR_NULL(subdomain))
@@ -1381,14 +1383,14 @@ int pm_genpd_remove_subdomain(struct gen
 
 	mutex_lock(&genpd->lock);
 
-	if (!list_empty(&subdomain->slave_links) || subdomain->device_count) {
+	if (!list_empty(&subdomain->master_links) || subdomain->device_count) {
 		pr_warn("%s: unable to remove subdomain %s\n", genpd->name,
 			subdomain->name);
 		ret = -EBUSY;
 		goto out;
 	}
 
-	list_for_each_entry(link, &genpd->master_links, master_node) {
+	list_for_each_entry_safe(link, l, &genpd->master_links, master_node) {
 		if (link->slave != subdomain)
 			continue;
 
@@ -1642,10 +1644,10 @@ EXPORT_SYMBOL_GPL(__of_genpd_add_provide
  */
 void of_genpd_del_provider(struct device_node *np)
 {
-	struct of_genpd_provider *cp;
+	struct of_genpd_provider *cp, *tmp;
 
 	mutex_lock(&of_genpd_mutex);
-	list_for_each_entry(cp, &of_genpd_providers, link) {
+	list_for_each_entry_safe(cp, tmp, &of_genpd_providers, link) {
 		if (cp->node == np) {
 			list_del(&cp->link);
 			of_node_put(cp->node);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/base/power/main.c linux-libre-4.4.107-gnu/drivers/base/power/main.c
--- linux-libre-4.4-gnu/drivers/base/power/main.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/base/power/main.c	2017-12-20 04:05:01.000000000 -0500
@@ -1022,6 +1022,8 @@ static int __device_suspend_noirq(struct
 	TRACE_DEVICE(dev);
 	TRACE_SUSPEND(0);
 
+	dpm_wait_for_children(dev, async);
+
 	if (async_error)
 		goto Complete;
 
@@ -1033,8 +1035,6 @@ static int __device_suspend_noirq(struct
 	if (dev->power.syscore || dev->power.direct_complete)
 		goto Complete;
 
-	dpm_wait_for_children(dev, async);
-
 	if (dev->pm_domain) {
 		info = "noirq power domain ";
 		callback = pm_noirq_op(&dev->pm_domain->ops, state);
@@ -1169,6 +1169,8 @@ static int __device_suspend_late(struct
 
 	__pm_runtime_disable(dev, false);
 
+	dpm_wait_for_children(dev, async);
+
 	if (async_error)
 		goto Complete;
 
@@ -1180,8 +1182,6 @@ static int __device_suspend_late(struct
 	if (dev->power.syscore || dev->power.direct_complete)
 		goto Complete;
 
-	dpm_wait_for_children(dev, async);
-
 	if (dev->pm_domain) {
 		info = "late power domain ";
 		callback = pm_late_early_op(&dev->pm_domain->ops, state);
@@ -1262,14 +1262,15 @@ int dpm_suspend_late(pm_message_t state)
 		error = device_suspend_late(dev);
 
 		mutex_lock(&dpm_list_mtx);
+		if (!list_empty(&dev->power.entry))
+			list_move(&dev->power.entry, &dpm_late_early_list);
+
 		if (error) {
 			pm_dev_err(dev, state, " late", error);
 			dpm_save_failed_dev(dev_name(dev));
 			put_device(dev);
 			break;
 		}
-		if (!list_empty(&dev->power.entry))
-			list_move(&dev->power.entry, &dpm_late_early_list);
 		put_device(dev);
 
 		if (async_error)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/base/power/opp/core.c linux-libre-4.4.107-gnu/drivers/base/power/opp/core.c
--- linux-libre-4.4-gnu/drivers/base/power/opp/core.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/base/power/opp/core.c	2017-12-20 04:05:01.000000000 -0500
@@ -809,8 +809,14 @@ static int opp_parse_supplies(struct dev
 	}
 
 	opp->u_volt = microvolt[0];
-	opp->u_volt_min = microvolt[1];
-	opp->u_volt_max = microvolt[2];
+
+	if (count == 1) {
+		opp->u_volt_min = opp->u_volt;
+		opp->u_volt_max = opp->u_volt;
+	} else {
+		opp->u_volt_min = microvolt[1];
+		opp->u_volt_max = microvolt[2];
+	}
 
 	if (!of_property_read_u32(opp->np, "opp-microamp", &val))
 		opp->u_amp = val;
@@ -1199,6 +1205,7 @@ static int _of_add_opp_table_v2(struct d
 		if (ret) {
 			dev_err(dev, "%s: Failed to add OPP, %d\n", __func__,
 				ret);
+			of_node_put(np);
 			goto free_table;
 		}
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/base/power/power.h linux-libre-4.4.107-gnu/drivers/base/power/power.h
--- linux-libre-4.4-gnu/drivers/base/power/power.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/base/power/power.h	2017-12-20 04:05:01.000000000 -0500
@@ -20,14 +20,22 @@ static inline void pm_runtime_early_init
 extern void pm_runtime_init(struct device *dev);
 extern void pm_runtime_remove(struct device *dev);
 
+#define WAKE_IRQ_DEDICATED_ALLOCATED	BIT(0)
+#define WAKE_IRQ_DEDICATED_MANAGED	BIT(1)
+#define WAKE_IRQ_DEDICATED_MASK		(WAKE_IRQ_DEDICATED_ALLOCATED | \
+					 WAKE_IRQ_DEDICATED_MANAGED)
+
 struct wake_irq {
 	struct device *dev;
+	unsigned int status;
 	int irq;
-	bool dedicated_irq:1;
 };
 
 extern void dev_pm_arm_wake_irq(struct wake_irq *wirq);
 extern void dev_pm_disarm_wake_irq(struct wake_irq *wirq);
+extern void dev_pm_enable_wake_irq_check(struct device *dev,
+					 bool can_change_status);
+extern void dev_pm_disable_wake_irq_check(struct device *dev);
 
 #ifdef CONFIG_PM_SLEEP
 
@@ -102,6 +110,15 @@ static inline void dev_pm_disarm_wake_ir
 {
 }
 
+static inline void dev_pm_enable_wake_irq_check(struct device *dev,
+						bool can_change_status)
+{
+}
+
+static inline void dev_pm_disable_wake_irq_check(struct device *dev)
+{
+}
+
 #endif
 
 #ifdef CONFIG_PM_SLEEP
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/base/power/runtime.c linux-libre-4.4.107-gnu/drivers/base/power/runtime.c
--- linux-libre-4.4-gnu/drivers/base/power/runtime.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/base/power/runtime.c	2017-12-20 04:05:01.000000000 -0500
@@ -515,7 +515,7 @@ static int rpm_suspend(struct device *de
 
 	callback = RPM_GET_CALLBACK(dev, runtime_suspend);
 
-	dev_pm_enable_wake_irq(dev);
+	dev_pm_enable_wake_irq_check(dev, true);
 	retval = rpm_callback(callback, dev);
 	if (retval)
 		goto fail;
@@ -554,7 +554,7 @@ static int rpm_suspend(struct device *de
 	return retval;
 
  fail:
-	dev_pm_disable_wake_irq(dev);
+	dev_pm_disable_wake_irq_check(dev);
 	__update_runtime_status(dev, RPM_ACTIVE);
 	dev->power.deferred_resume = false;
 	wake_up_all(&dev->power.wait_queue);
@@ -737,12 +737,12 @@ static int rpm_resume(struct device *dev
 
 	callback = RPM_GET_CALLBACK(dev, runtime_resume);
 
-	dev_pm_disable_wake_irq(dev);
+	dev_pm_disable_wake_irq_check(dev);
 	retval = rpm_callback(callback, dev);
 	if (retval) {
 		__update_runtime_status(dev, RPM_SUSPENDED);
 		pm_runtime_cancel_pending(dev);
-		dev_pm_enable_wake_irq(dev);
+		dev_pm_enable_wake_irq_check(dev, false);
 	} else {
  no_callback:
 		__update_runtime_status(dev, RPM_ACTIVE);
@@ -889,13 +889,13 @@ int __pm_runtime_idle(struct device *dev
 	unsigned long flags;
 	int retval;
 
-	might_sleep_if(!(rpmflags & RPM_ASYNC) && !dev->power.irq_safe);
-
 	if (rpmflags & RPM_GET_PUT) {
 		if (!atomic_dec_and_test(&dev->power.usage_count))
 			return 0;
 	}
 
+	might_sleep_if(!(rpmflags & RPM_ASYNC) && !dev->power.irq_safe);
+
 	spin_lock_irqsave(&dev->power.lock, flags);
 	retval = rpm_idle(dev, rpmflags);
 	spin_unlock_irqrestore(&dev->power.lock, flags);
@@ -921,13 +921,13 @@ int __pm_runtime_suspend(struct device *
 	unsigned long flags;
 	int retval;
 
-	might_sleep_if(!(rpmflags & RPM_ASYNC) && !dev->power.irq_safe);
-
 	if (rpmflags & RPM_GET_PUT) {
 		if (!atomic_dec_and_test(&dev->power.usage_count))
 			return 0;
 	}
 
+	might_sleep_if(!(rpmflags & RPM_ASYNC) && !dev->power.irq_safe);
+
 	spin_lock_irqsave(&dev->power.lock, flags);
 	retval = rpm_suspend(dev, rpmflags);
 	spin_unlock_irqrestore(&dev->power.lock, flags);
@@ -952,7 +952,8 @@ int __pm_runtime_resume(struct device *d
 	unsigned long flags;
 	int retval;
 
-	might_sleep_if(!(rpmflags & RPM_ASYNC) && !dev->power.irq_safe);
+	might_sleep_if(!(rpmflags & RPM_ASYNC) && !dev->power.irq_safe &&
+			dev->power.runtime_status != RPM_ACTIVE);
 
 	if (rpmflags & RPM_GET_PUT)
 		atomic_inc(&dev->power.usage_count);
@@ -1468,11 +1469,16 @@ int pm_runtime_force_resume(struct devic
 		goto out;
 	}
 
-	ret = callback(dev);
+	ret = pm_runtime_set_active(dev);
 	if (ret)
 		goto out;
 
-	pm_runtime_set_active(dev);
+	ret = callback(dev);
+	if (ret) {
+		pm_runtime_set_suspended(dev);
+		goto out;
+	}
+
 	pm_runtime_mark_last_busy(dev);
 out:
 	pm_runtime_enable(dev);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/base/power/sysfs.c linux-libre-4.4.107-gnu/drivers/base/power/sysfs.c
--- linux-libre-4.4-gnu/drivers/base/power/sysfs.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/base/power/sysfs.c	2017-12-20 04:05:01.000000000 -0500
@@ -268,6 +268,8 @@ static ssize_t pm_qos_latency_tolerance_
 			value = PM_QOS_LATENCY_TOLERANCE_NO_CONSTRAINT;
 		else if (!strcmp(buf, "any") || !strcmp(buf, "any\n"))
 			value = PM_QOS_LATENCY_ANY;
+		else
+			return -EINVAL;
 	}
 	ret = dev_pm_qos_update_user_latency_tolerance(dev, value);
 	return ret < 0 ? ret : n;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/base/power/wakeirq.c linux-libre-4.4.107-gnu/drivers/base/power/wakeirq.c
--- linux-libre-4.4-gnu/drivers/base/power/wakeirq.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/base/power/wakeirq.c	2017-12-20 04:05:01.000000000 -0500
@@ -110,8 +110,10 @@ void dev_pm_clear_wake_irq(struct device
 	dev->power.wakeirq = NULL;
 	spin_unlock_irqrestore(&dev->power.lock, flags);
 
-	if (wirq->dedicated_irq)
+	if (wirq->status & WAKE_IRQ_DEDICATED_ALLOCATED) {
 		free_irq(wirq->irq, wirq);
+		wirq->status &= ~WAKE_IRQ_DEDICATED_MASK;
+	}
 	kfree(wirq);
 }
 EXPORT_SYMBOL_GPL(dev_pm_clear_wake_irq);
@@ -139,6 +141,13 @@ static irqreturn_t handle_threaded_wake_
 	struct wake_irq *wirq = _wirq;
 	int res;
 
+	/* Maybe abort suspend? */
+	if (irqd_is_wakeup_set(irq_get_irq_data(irq))) {
+		pm_wakeup_event(wirq->dev, 0);
+
+		return IRQ_HANDLED;
+	}
+
 	/* We don't want RPM_ASYNC or RPM_NOWAIT here */
 	res = pm_runtime_resume(wirq->dev);
 	if (res < 0)
@@ -179,7 +188,6 @@ int dev_pm_set_dedicated_wake_irq(struct
 
 	wirq->dev = dev;
 	wirq->irq = irq;
-	wirq->dedicated_irq = true;
 	irq_set_status_flags(irq, IRQ_NOAUTOEN);
 
 	/*
@@ -195,6 +203,8 @@ int dev_pm_set_dedicated_wake_irq(struct
 	if (err)
 		goto err_free_irq;
 
+	wirq->status = WAKE_IRQ_DEDICATED_ALLOCATED;
+
 	return err;
 
 err_free_irq:
@@ -210,9 +220,9 @@ EXPORT_SYMBOL_GPL(dev_pm_set_dedicated_w
  * dev_pm_enable_wake_irq - Enable device wake-up interrupt
  * @dev: Device
  *
- * Called from the bus code or the device driver for
- * runtime_suspend() to enable the wake-up interrupt while
- * the device is running.
+ * Optionally called from the bus code or the device driver for
+ * runtime_resume() to override the PM runtime core managed wake-up
+ * interrupt handling to enable the wake-up interrupt.
  *
  * Note that for runtime_suspend()) the wake-up interrupts
  * should be unconditionally enabled unlike for suspend()
@@ -222,7 +232,7 @@ void dev_pm_enable_wake_irq(struct devic
 {
 	struct wake_irq *wirq = dev->power.wakeirq;
 
-	if (wirq && wirq->dedicated_irq)
+	if (wirq && (wirq->status & WAKE_IRQ_DEDICATED_ALLOCATED))
 		enable_irq(wirq->irq);
 }
 EXPORT_SYMBOL_GPL(dev_pm_enable_wake_irq);
@@ -231,20 +241,73 @@ EXPORT_SYMBOL_GPL(dev_pm_enable_wake_irq
  * dev_pm_disable_wake_irq - Disable device wake-up interrupt
  * @dev: Device
  *
- * Called from the bus code or the device driver for
- * runtime_resume() to disable the wake-up interrupt while
- * the device is running.
+ * Optionally called from the bus code or the device driver for
+ * runtime_suspend() to override the PM runtime core managed wake-up
+ * interrupt handling to disable the wake-up interrupt.
  */
 void dev_pm_disable_wake_irq(struct device *dev)
 {
 	struct wake_irq *wirq = dev->power.wakeirq;
 
-	if (wirq && wirq->dedicated_irq)
+	if (wirq && (wirq->status & WAKE_IRQ_DEDICATED_ALLOCATED))
 		disable_irq_nosync(wirq->irq);
 }
 EXPORT_SYMBOL_GPL(dev_pm_disable_wake_irq);
 
 /**
+ * dev_pm_enable_wake_irq_check - Checks and enables wake-up interrupt
+ * @dev: Device
+ * @can_change_status: Can change wake-up interrupt status
+ *
+ * Enables wakeirq conditionally. We need to enable wake-up interrupt
+ * lazily on the first rpm_suspend(). This is needed as the consumer device
+ * starts in RPM_SUSPENDED state, and the the first pm_runtime_get() would
+ * otherwise try to disable already disabled wakeirq. The wake-up interrupt
+ * starts disabled with IRQ_NOAUTOEN set.
+ *
+ * Should be only called from rpm_suspend() and rpm_resume() path.
+ * Caller must hold &dev->power.lock to change wirq->status
+ */
+void dev_pm_enable_wake_irq_check(struct device *dev,
+				  bool can_change_status)
+{
+	struct wake_irq *wirq = dev->power.wakeirq;
+
+	if (!wirq || !((wirq->status & WAKE_IRQ_DEDICATED_MASK)))
+		return;
+
+	if (likely(wirq->status & WAKE_IRQ_DEDICATED_MANAGED)) {
+		goto enable;
+	} else if (can_change_status) {
+		wirq->status |= WAKE_IRQ_DEDICATED_MANAGED;
+		goto enable;
+	}
+
+	return;
+
+enable:
+	enable_irq(wirq->irq);
+}
+
+/**
+ * dev_pm_disable_wake_irq_check - Checks and disables wake-up interrupt
+ * @dev: Device
+ *
+ * Disables wake-up interrupt conditionally based on status.
+ * Should be only called from rpm_suspend() and rpm_resume() path.
+ */
+void dev_pm_disable_wake_irq_check(struct device *dev)
+{
+	struct wake_irq *wirq = dev->power.wakeirq;
+
+	if (!wirq || !((wirq->status & WAKE_IRQ_DEDICATED_MASK)))
+		return;
+
+	if (wirq->status & WAKE_IRQ_DEDICATED_MANAGED)
+		disable_irq_nosync(wirq->irq);
+}
+
+/**
  * dev_pm_arm_wake_irq - Arm device wake-up
  * @wirq: Device wake-up interrupt
  *
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/base/power/wakeup.c linux-libre-4.4.107-gnu/drivers/base/power/wakeup.c
--- linux-libre-4.4-gnu/drivers/base/power/wakeup.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/base/power/wakeup.c	2017-12-20 04:05:01.000000000 -0500
@@ -60,6 +60,8 @@ static LIST_HEAD(wakeup_sources);
 
 static DECLARE_WAIT_QUEUE_HEAD(wakeup_count_wait_queue);
 
+DEFINE_STATIC_SRCU(wakeup_srcu);
+
 static struct wakeup_source deleted_ws = {
 	.name = "deleted",
 	.lock =  __SPIN_LOCK_UNLOCKED(deleted_ws.lock),
@@ -198,7 +200,7 @@ void wakeup_source_remove(struct wakeup_
 	spin_lock_irqsave(&events_lock, flags);
 	list_del_rcu(&ws->entry);
 	spin_unlock_irqrestore(&events_lock, flags);
-	synchronize_rcu();
+	synchronize_srcu(&wakeup_srcu);
 }
 EXPORT_SYMBOL_GPL(wakeup_source_remove);
 
@@ -330,13 +332,14 @@ void device_wakeup_detach_irq(struct dev
 void device_wakeup_arm_wake_irqs(void)
 {
 	struct wakeup_source *ws;
+	int srcuidx;
 
-	rcu_read_lock();
+	srcuidx = srcu_read_lock(&wakeup_srcu);
 	list_for_each_entry_rcu(ws, &wakeup_sources, entry) {
 		if (ws->wakeirq)
 			dev_pm_arm_wake_irq(ws->wakeirq);
 	}
-	rcu_read_unlock();
+	srcu_read_unlock(&wakeup_srcu, srcuidx);
 }
 
 /**
@@ -347,13 +350,14 @@ void device_wakeup_arm_wake_irqs(void)
 void device_wakeup_disarm_wake_irqs(void)
 {
 	struct wakeup_source *ws;
+	int srcuidx;
 
-	rcu_read_lock();
+	srcuidx = srcu_read_lock(&wakeup_srcu);
 	list_for_each_entry_rcu(ws, &wakeup_sources, entry) {
 		if (ws->wakeirq)
 			dev_pm_disarm_wake_irq(ws->wakeirq);
 	}
-	rcu_read_unlock();
+	srcu_read_unlock(&wakeup_srcu, srcuidx);
 }
 
 /**
@@ -807,10 +811,10 @@ EXPORT_SYMBOL_GPL(pm_wakeup_event);
 void pm_print_active_wakeup_sources(void)
 {
 	struct wakeup_source *ws;
-	int active = 0;
+	int srcuidx, active = 0;
 	struct wakeup_source *last_activity_ws = NULL;
 
-	rcu_read_lock();
+	srcuidx = srcu_read_lock(&wakeup_srcu);
 	list_for_each_entry_rcu(ws, &wakeup_sources, entry) {
 		if (ws->active) {
 			pr_info("active wakeup source: %s\n", ws->name);
@@ -826,7 +830,7 @@ void pm_print_active_wakeup_sources(void
 	if (!active && last_activity_ws)
 		pr_info("last active wakeup source: %s\n",
 			last_activity_ws->name);
-	rcu_read_unlock();
+	srcu_read_unlock(&wakeup_srcu, srcuidx);
 }
 EXPORT_SYMBOL_GPL(pm_print_active_wakeup_sources);
 
@@ -953,8 +957,9 @@ void pm_wakep_autosleep_enabled(bool set
 {
 	struct wakeup_source *ws;
 	ktime_t now = ktime_get();
+	int srcuidx;
 
-	rcu_read_lock();
+	srcuidx = srcu_read_lock(&wakeup_srcu);
 	list_for_each_entry_rcu(ws, &wakeup_sources, entry) {
 		spin_lock_irq(&ws->lock);
 		if (ws->autosleep_enabled != set) {
@@ -968,7 +973,7 @@ void pm_wakep_autosleep_enabled(bool set
 		}
 		spin_unlock_irq(&ws->lock);
 	}
-	rcu_read_unlock();
+	srcu_read_unlock(&wakeup_srcu, srcuidx);
 }
 #endif /* CONFIG_PM_AUTOSLEEP */
 
@@ -1029,15 +1034,16 @@ static int print_wakeup_source_stats(str
 static int wakeup_sources_stats_show(struct seq_file *m, void *unused)
 {
 	struct wakeup_source *ws;
+	int srcuidx;
 
 	seq_puts(m, "name\t\tactive_count\tevent_count\twakeup_count\t"
 		"expire_count\tactive_since\ttotal_time\tmax_time\t"
 		"last_change\tprevent_suspend_time\n");
 
-	rcu_read_lock();
+	srcuidx = srcu_read_lock(&wakeup_srcu);
 	list_for_each_entry_rcu(ws, &wakeup_sources, entry)
 		print_wakeup_source_stats(m, ws);
-	rcu_read_unlock();
+	srcu_read_unlock(&wakeup_srcu, srcuidx);
 
 	print_wakeup_source_stats(m, &deleted_ws);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/base/regmap/regmap-spmi.c linux-libre-4.4.107-gnu/drivers/base/regmap/regmap-spmi.c
--- linux-libre-4.4-gnu/drivers/base/regmap/regmap-spmi.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/base/regmap/regmap-spmi.c	2017-12-20 04:05:01.000000000 -0500
@@ -142,7 +142,7 @@ static int regmap_spmi_ext_read(void *co
 	while (val_size) {
 		len = min_t(size_t, val_size, 8);
 
-		err = spmi_ext_register_readl(context, addr, val, val_size);
+		err = spmi_ext_register_readl(context, addr, val, len);
 		if (err)
 			goto err_out;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/bcma/bcma_private.h linux-libre-4.4.107-gnu/drivers/bcma/bcma_private.h
--- linux-libre-4.4-gnu/drivers/bcma/bcma_private.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/bcma/bcma_private.h	2017-12-20 04:05:01.000000000 -0500
@@ -8,8 +8,6 @@
 #include <linux/bcma/bcma.h>
 #include <linux/delay.h>
 
-#define BCMA_CORE_SIZE		0x1000
-
 #define bcma_err(bus, fmt, ...) \
 	pr_err("bus%d: " fmt, (bus)->num, ##__VA_ARGS__)
 #define bcma_warn(bus, fmt, ...) \
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/bcma/main.c linux-libre-4.4.107-gnu/drivers/bcma/main.c
--- linux-libre-4.4-gnu/drivers/bcma/main.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/bcma/main.c	2017-12-20 04:05:01.000000000 -0500
@@ -640,8 +640,11 @@ static int bcma_device_probe(struct devi
 					       drv);
 	int err = 0;
 
+	get_device(dev);
 	if (adrv->probe)
 		err = adrv->probe(core);
+	if (err)
+		put_device(dev);
 
 	return err;
 }
@@ -654,6 +657,7 @@ static int bcma_device_remove(struct dev
 
 	if (adrv->remove)
 		adrv->remove(core);
+	put_device(dev);
 
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/block/brd.c linux-libre-4.4.107-gnu/drivers/block/brd.c
--- linux-libre-4.4-gnu/drivers/block/brd.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/block/brd.c	2017-12-20 04:05:01.000000000 -0500
@@ -338,7 +338,7 @@ static blk_qc_t brd_make_request(struct
 
 	if (unlikely(bio->bi_rw & REQ_DISCARD)) {
 		if (sector & ((PAGE_SIZE >> SECTOR_SHIFT) - 1) ||
-		    bio->bi_iter.bi_size & PAGE_MASK)
+		    bio->bi_iter.bi_size & ~PAGE_MASK)
 			goto io_error;
 		discard_from_brd(brd, sector, bio->bi_iter.bi_size);
 		goto out;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/block/drbd/drbd_bitmap.c linux-libre-4.4.107-gnu/drivers/block/drbd/drbd_bitmap.c
--- linux-libre-4.4-gnu/drivers/block/drbd/drbd_bitmap.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/block/drbd/drbd_bitmap.c	2017-12-20 04:05:01.000000000 -0500
@@ -479,8 +479,14 @@ void drbd_bm_cleanup(struct drbd_device
  * this masks out the remaining bits.
  * Returns the number of bits cleared.
  */
+#ifndef BITS_PER_PAGE
 #define BITS_PER_PAGE		(1UL << (PAGE_SHIFT + 3))
 #define BITS_PER_PAGE_MASK	(BITS_PER_PAGE - 1)
+#else
+# if BITS_PER_PAGE != (1UL << (PAGE_SHIFT + 3))
+#  error "ambiguous BITS_PER_PAGE"
+# endif
+#endif
 #define BITS_PER_LONG_MASK	(BITS_PER_LONG - 1)
 static int bm_clear_surplus(struct drbd_bitmap *b)
 {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/block/drbd/drbd_main.c linux-libre-4.4.107-gnu/drivers/block/drbd/drbd_main.c
--- linux-libre-4.4-gnu/drivers/block/drbd/drbd_main.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/block/drbd/drbd_main.c	2017-12-20 04:05:01.000000000 -0500
@@ -1802,7 +1802,7 @@ int drbd_send(struct drbd_connection *co
  * do we need to block DRBD_SIG if sock == &meta.socket ??
  * otherwise wake_asender() might interrupt some send_*Ack !
  */
-		rv = kernel_sendmsg(sock, &msg, &iov, 1, size);
+		rv = kernel_sendmsg(sock, &msg, &iov, 1, iov.iov_len);
 		if (rv == -EAGAIN) {
 			if (we_should_drop_the_connection(connection, sock))
 				break;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/block/loop.c linux-libre-4.4.107-gnu/drivers/block/loop.c
--- linux-libre-4.4-gnu/drivers/block/loop.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/block/loop.c	2017-12-20 04:05:01.000000000 -0500
@@ -488,6 +488,12 @@ static int lo_rw_aio(struct loop_device
 	bvec = __bvec_iter_bvec(bio->bi_io_vec, bio->bi_iter);
 	iov_iter_bvec(&iter, ITER_BVEC | rw, bvec,
 		      bio_segments(bio), blk_rq_bytes(cmd->rq));
+	/*
+	 * This bio may be started from the middle of the 'bvec'
+	 * because of bio splitting, so offset from the bvec must
+	 * be passed to iov iterator
+	 */
+	iter.iov_offset = bio->bi_iter.bi_bvec_done;
 
 	cmd->iocb.ki_pos = pos;
 	cmd->iocb.ki_filp = file;
@@ -1102,9 +1108,12 @@ loop_set_status(struct loop_device *lo,
 	if ((unsigned int) info->lo_encrypt_key_size > LO_KEY_SIZE)
 		return -EINVAL;
 
+	/* I/O need to be drained during transfer transition */
+	blk_mq_freeze_queue(lo->lo_queue);
+
 	err = loop_release_xfer(lo);
 	if (err)
-		return err;
+		goto exit;
 
 	if (info->lo_encrypt_type) {
 		unsigned int type = info->lo_encrypt_type;
@@ -1119,12 +1128,14 @@ loop_set_status(struct loop_device *lo,
 
 	err = loop_init_xfer(lo, xfer, info);
 	if (err)
-		return err;
+		goto exit;
 
 	if (lo->lo_offset != info->lo_offset ||
 	    lo->lo_sizelimit != info->lo_sizelimit)
-		if (figure_loop_size(lo, info->lo_offset, info->lo_sizelimit))
-			return -EFBIG;
+		if (figure_loop_size(lo, info->lo_offset, info->lo_sizelimit)) {
+			err = -EFBIG;
+			goto exit;
+		}
 
 	loop_config_discard(lo);
 
@@ -1142,13 +1153,6 @@ loop_set_status(struct loop_device *lo,
 	     (info->lo_flags & LO_FLAGS_AUTOCLEAR))
 		lo->lo_flags ^= LO_FLAGS_AUTOCLEAR;
 
-	if ((info->lo_flags & LO_FLAGS_PARTSCAN) &&
-	     !(lo->lo_flags & LO_FLAGS_PARTSCAN)) {
-		lo->lo_flags |= LO_FLAGS_PARTSCAN;
-		lo->lo_disk->flags &= ~GENHD_FL_NO_PART_SCAN;
-		loop_reread_partitions(lo, lo->lo_device);
-	}
-
 	lo->lo_encrypt_key_size = info->lo_encrypt_key_size;
 	lo->lo_init[0] = info->lo_init[0];
 	lo->lo_init[1] = info->lo_init[1];
@@ -1161,7 +1165,17 @@ loop_set_status(struct loop_device *lo,
 	/* update dio if lo_offset or transfer is changed */
 	__loop_update_dio(lo, lo->use_dio);
 
-	return 0;
+ exit:
+	blk_mq_unfreeze_queue(lo->lo_queue);
+
+	if (!err && (info->lo_flags & LO_FLAGS_PARTSCAN) &&
+	     !(lo->lo_flags & LO_FLAGS_PARTSCAN)) {
+		lo->lo_flags |= LO_FLAGS_PARTSCAN;
+		lo->lo_disk->flags &= ~GENHD_FL_NO_PART_SCAN;
+		loop_reread_partitions(lo, lo->lo_device);
+	}
+
+	return err;
 }
 
 static int
@@ -1651,7 +1665,7 @@ static int loop_queue_rq(struct blk_mq_h
 	blk_mq_start_request(bd->rq);
 
 	if (lo->lo_state != Lo_bound)
-		return -EIO;
+		return BLK_MQ_RQ_QUEUE_ERROR;
 
 	if (lo->use_dio && !(cmd->rq->cmd_flags & (REQ_FLUSH |
 					REQ_DISCARD)))
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/block/mtip32xx/mtip32xx.c linux-libre-4.4.107-gnu/drivers/block/mtip32xx/mtip32xx.c
--- linux-libre-4.4-gnu/drivers/block/mtip32xx/mtip32xx.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/block/mtip32xx/mtip32xx.c	2017-12-20 04:05:01.000000000 -0500
@@ -173,7 +173,13 @@ static struct mtip_cmd *mtip_get_int_com
 {
 	struct request *rq;
 
+	if (mtip_check_surprise_removal(dd->pdev))
+		return NULL;
+
 	rq = blk_mq_alloc_request(dd->queue, 0, __GFP_RECLAIM, true);
+	if (IS_ERR(rq))
+		return NULL;
+
 	return blk_mq_rq_to_pdu(rq);
 }
 
@@ -233,15 +239,9 @@ static void mtip_async_complete(struct m
 			"Command tag %d failed due to TFE\n", tag);
 	}
 
-	/* Unmap the DMA scatter list entries */
-	dma_unmap_sg(&dd->pdev->dev, cmd->sg, cmd->scatter_ents, cmd->direction);
-
 	rq = mtip_rq_from_tag(dd, tag);
 
-	if (unlikely(cmd->unaligned))
-		up(&port->cmd_slot_unal);
-
-	blk_mq_end_request(rq, status ? -EIO : 0);
+	blk_mq_complete_request(rq, status);
 }
 
 /*
@@ -581,6 +581,8 @@ static void mtip_completion(struct mtip_
 		dev_warn(&port->dd->pdev->dev,
 			"Internal command %d completed with TFE\n", tag);
 
+	command->comp_func = NULL;
+	command->comp_data = NULL;
 	complete(waiting);
 }
 
@@ -618,8 +620,6 @@ static void mtip_handle_tfe(struct drive
 
 	port = dd->port;
 
-	set_bit(MTIP_PF_EH_ACTIVE_BIT, &port->flags);
-
 	if (test_bit(MTIP_PF_IC_ACTIVE_BIT, &port->flags)) {
 		cmd = mtip_cmd_from_tag(dd, MTIP_TAG_INTERNAL);
 		dbg_printk(MTIP_DRV_NAME " TFE for the internal command\n");
@@ -628,7 +628,7 @@ static void mtip_handle_tfe(struct drive
 			cmd->comp_func(port, MTIP_TAG_INTERNAL,
 					cmd, PORT_IRQ_TF_ERR);
 		}
-		goto handle_tfe_exit;
+		return;
 	}
 
 	/* clear the tag accumulator */
@@ -701,7 +701,7 @@ static void mtip_handle_tfe(struct drive
 			fail_reason = "thermal shutdown";
 		}
 		if (buf[288] == 0xBF) {
-			set_bit(MTIP_DDF_SEC_LOCK_BIT, &dd->dd_flag);
+			set_bit(MTIP_DDF_REBUILD_FAILED_BIT, &dd->dd_flag);
 			dev_info(&dd->pdev->dev,
 				"Drive indicates rebuild has failed. Secure erase required.\n");
 			fail_all_ncq_cmds = 1;
@@ -771,11 +771,6 @@ static void mtip_handle_tfe(struct drive
 		}
 	}
 	print_tags(dd, "reissued (TFE)", tagaccum, cmd_cnt);
-
-handle_tfe_exit:
-	/* clear eh_active */
-	clear_bit(MTIP_PF_EH_ACTIVE_BIT, &port->flags);
-	wake_up_interruptible(&port->svc_wait);
 }
 
 /*
@@ -1007,6 +1002,7 @@ static bool mtip_pause_ncq(struct mtip_p
 			(fis->features == 0x27 || fis->features == 0x72 ||
 			 fis->features == 0x62 || fis->features == 0x26))) {
 		clear_bit(MTIP_DDF_SEC_LOCK_BIT, &port->dd->dd_flag);
+		clear_bit(MTIP_DDF_REBUILD_FAILED_BIT, &port->dd->dd_flag);
 		/* Com reset after secure erase or lowlevel format */
 		mtip_restart_port(port);
 		clear_bit(MTIP_PF_SE_ACTIVE_BIT, &port->flags);
@@ -1021,12 +1017,14 @@ static bool mtip_pause_ncq(struct mtip_p
  *
  * @port    Pointer to port data structure
  * @timeout Max duration to wait (ms)
+ * @atomic  gfp_t flag to indicate blockable context or not
  *
  * return value
  *	0	Success
  *	-EBUSY  Commands still active
  */
-static int mtip_quiesce_io(struct mtip_port *port, unsigned long timeout)
+static int mtip_quiesce_io(struct mtip_port *port, unsigned long timeout,
+								gfp_t atomic)
 {
 	unsigned long to;
 	unsigned int n;
@@ -1037,16 +1035,21 @@ static int mtip_quiesce_io(struct mtip_p
 	to = jiffies + msecs_to_jiffies(timeout);
 	do {
 		if (test_bit(MTIP_PF_SVC_THD_ACTIVE_BIT, &port->flags) &&
-			test_bit(MTIP_PF_ISSUE_CMDS_BIT, &port->flags)) {
+			test_bit(MTIP_PF_ISSUE_CMDS_BIT, &port->flags) &&
+			atomic == GFP_KERNEL) {
 			msleep(20);
 			continue; /* svc thd is actively issuing commands */
 		}
 
-		msleep(100);
+		if (atomic == GFP_KERNEL)
+			msleep(100);
+		else {
+			cpu_relax();
+			udelay(100);
+		}
+
 		if (mtip_check_surprise_removal(port->dd->pdev))
 			goto err_fault;
-		if (test_bit(MTIP_DDF_REMOVE_PENDING_BIT, &port->dd->dd_flag))
-			goto err_fault;
 
 		/*
 		 * Ignore s_active bit 0 of array element 0.
@@ -1099,6 +1102,7 @@ static int mtip_exec_internal_command(st
 	struct mtip_cmd *int_cmd;
 	struct driver_data *dd = port->dd;
 	int rv = 0;
+	unsigned long start;
 
 	/* Make sure the buffer is 8 byte aligned. This is asic specific. */
 	if (buffer & 0x00000007) {
@@ -1107,6 +1111,10 @@ static int mtip_exec_internal_command(st
 	}
 
 	int_cmd = mtip_get_int_command(dd);
+	if (!int_cmd) {
+		dbg_printk(MTIP_DRV_NAME "Unable to allocate tag for PIO cmd\n");
+		return -EFAULT;
+	}
 
 	set_bit(MTIP_PF_IC_ACTIVE_BIT, &port->flags);
 
@@ -1119,7 +1127,7 @@ static int mtip_exec_internal_command(st
 		if (fis->command != ATA_CMD_STANDBYNOW1) {
 			/* wait for io to complete if non atomic */
 			if (mtip_quiesce_io(port,
-					MTIP_QUIESCE_IO_TIMEOUT_MS) < 0) {
+				MTIP_QUIESCE_IO_TIMEOUT_MS, atomic) < 0) {
 				dev_warn(&dd->pdev->dev,
 					"Failed to quiesce IO\n");
 				mtip_put_int_command(dd, int_cmd);
@@ -1162,6 +1170,8 @@ static int mtip_exec_internal_command(st
 	/* Populate the command header */
 	int_cmd->command_header->byte_count = 0;
 
+	start = jiffies;
+
 	/* Issue the command to the hardware */
 	mtip_issue_non_ncq_command(port, MTIP_TAG_INTERNAL);
 
@@ -1170,10 +1180,12 @@ static int mtip_exec_internal_command(st
 		if ((rv = wait_for_completion_interruptible_timeout(
 				&wait,
 				msecs_to_jiffies(timeout))) <= 0) {
+
 			if (rv == -ERESTARTSYS) { /* interrupted */
 				dev_err(&dd->pdev->dev,
-					"Internal command [%02X] was interrupted after %lu ms\n",
-					fis->command, timeout);
+					"Internal command [%02X] was interrupted after %u ms\n",
+					fis->command,
+					jiffies_to_msecs(jiffies - start));
 				rv = -EINTR;
 				goto exec_ic_exit;
 			} else if (rv == 0) /* timeout */
@@ -2897,6 +2909,42 @@ static int mtip_ftl_rebuild_poll(struct
 	return -EFAULT;
 }
 
+static void mtip_softirq_done_fn(struct request *rq)
+{
+	struct mtip_cmd *cmd = blk_mq_rq_to_pdu(rq);
+	struct driver_data *dd = rq->q->queuedata;
+
+	/* Unmap the DMA scatter list entries */
+	dma_unmap_sg(&dd->pdev->dev, cmd->sg, cmd->scatter_ents,
+							cmd->direction);
+
+	if (unlikely(cmd->unaligned))
+		up(&dd->port->cmd_slot_unal);
+
+	blk_mq_end_request(rq, rq->errors);
+}
+
+static void mtip_abort_cmd(struct request *req, void *data,
+							bool reserved)
+{
+	struct driver_data *dd = data;
+
+	dbg_printk(MTIP_DRV_NAME " Aborting request, tag = %d\n", req->tag);
+
+	clear_bit(req->tag, dd->port->cmds_to_issue);
+	req->errors = -EIO;
+	mtip_softirq_done_fn(req);
+}
+
+static void mtip_queue_cmd(struct request *req, void *data,
+							bool reserved)
+{
+	struct driver_data *dd = data;
+
+	set_bit(req->tag, dd->port->cmds_to_issue);
+	blk_abort_request(req);
+}
+
 /*
  * service thread to issue queued commands
  *
@@ -2909,7 +2957,7 @@ static int mtip_ftl_rebuild_poll(struct
 static int mtip_service_thread(void *data)
 {
 	struct driver_data *dd = (struct driver_data *)data;
-	unsigned long slot, slot_start, slot_wrap;
+	unsigned long slot, slot_start, slot_wrap, to;
 	unsigned int num_cmd_slots = dd->slot_groups * 32;
 	struct mtip_port *port = dd->port;
 
@@ -2924,9 +2972,7 @@ static int mtip_service_thread(void *dat
 		 * is in progress nor error handling is active
 		 */
 		wait_event_interruptible(port->svc_wait, (port->flags) &&
-			!(port->flags & MTIP_PF_PAUSE_IO));
-
-		set_bit(MTIP_PF_SVC_THD_ACTIVE_BIT, &port->flags);
+			(port->flags & MTIP_PF_SVC_THD_WORK));
 
 		if (kthread_should_stop() ||
 			test_bit(MTIP_PF_SVC_THD_STOP_BIT, &port->flags))
@@ -2936,6 +2982,8 @@ static int mtip_service_thread(void *dat
 				&dd->dd_flag)))
 			goto st_out;
 
+		set_bit(MTIP_PF_SVC_THD_ACTIVE_BIT, &port->flags);
+
 restart_eh:
 		/* Demux bits: start with error handling */
 		if (test_bit(MTIP_PF_EH_ACTIVE_BIT, &port->flags)) {
@@ -2946,6 +2994,32 @@ restart_eh:
 		if (test_bit(MTIP_PF_EH_ACTIVE_BIT, &port->flags))
 			goto restart_eh;
 
+		if (test_bit(MTIP_PF_TO_ACTIVE_BIT, &port->flags)) {
+			to = jiffies + msecs_to_jiffies(5000);
+
+			do {
+				mdelay(100);
+			} while (atomic_read(&dd->irq_workers_active) != 0 &&
+				time_before(jiffies, to));
+
+			if (atomic_read(&dd->irq_workers_active) != 0)
+				dev_warn(&dd->pdev->dev,
+					"Completion workers still active!");
+
+			spin_lock(dd->queue->queue_lock);
+			blk_mq_all_tag_busy_iter(*dd->tags.tags,
+							mtip_queue_cmd, dd);
+			spin_unlock(dd->queue->queue_lock);
+
+			set_bit(MTIP_PF_ISSUE_CMDS_BIT, &dd->port->flags);
+
+			if (mtip_device_reset(dd))
+				blk_mq_all_tag_busy_iter(*dd->tags.tags,
+							mtip_abort_cmd, dd);
+
+			clear_bit(MTIP_PF_TO_ACTIVE_BIT, &dd->port->flags);
+		}
+
 		if (test_bit(MTIP_PF_ISSUE_CMDS_BIT, &port->flags)) {
 			slot = 1;
 			/* used to restrict the loop to one iteration */
@@ -2978,10 +3052,8 @@ restart_eh:
 		}
 
 		if (test_bit(MTIP_PF_REBUILD_BIT, &port->flags)) {
-			if (mtip_ftl_rebuild_poll(dd) < 0)
-				set_bit(MTIP_DDF_REBUILD_FAILED_BIT,
-							&dd->dd_flag);
-			clear_bit(MTIP_PF_REBUILD_BIT, &port->flags);
+			if (mtip_ftl_rebuild_poll(dd) == 0)
+				clear_bit(MTIP_PF_REBUILD_BIT, &port->flags);
 		}
 	}
 
@@ -3096,7 +3168,7 @@ static int mtip_hw_get_identify(struct d
 		if (buf[288] == 0xBF) {
 			dev_info(&dd->pdev->dev,
 				"Drive indicates rebuild has failed.\n");
-			/* TODO */
+			set_bit(MTIP_DDF_REBUILD_FAILED_BIT, &dd->dd_flag);
 		}
 	}
 
@@ -3270,20 +3342,25 @@ out1:
 	return rv;
 }
 
-static void mtip_standby_drive(struct driver_data *dd)
+static int mtip_standby_drive(struct driver_data *dd)
 {
-	if (dd->sr)
-		return;
+	int rv = 0;
 
+	if (dd->sr || !dd->port)
+		return -ENODEV;
 	/*
 	 * Send standby immediate (E0h) to the drive so that it
 	 * saves its state.
 	 */
 	if (!test_bit(MTIP_PF_REBUILD_BIT, &dd->port->flags) &&
-	    !test_bit(MTIP_DDF_SEC_LOCK_BIT, &dd->dd_flag))
-		if (mtip_standby_immediate(dd->port))
+	    !test_bit(MTIP_DDF_REBUILD_FAILED_BIT, &dd->dd_flag) &&
+	    !test_bit(MTIP_DDF_SEC_LOCK_BIT, &dd->dd_flag)) {
+		rv = mtip_standby_immediate(dd->port);
+		if (rv)
 			dev_warn(&dd->pdev->dev,
 				"STANDBY IMMEDIATE failed\n");
+	}
+	return rv;
 }
 
 /*
@@ -3296,10 +3373,6 @@ static void mtip_standby_drive(struct dr
  */
 static int mtip_hw_exit(struct driver_data *dd)
 {
-	/*
-	 * Send standby immediate (E0h) to the drive so that it
-	 * saves its state.
-	 */
 	if (!dd->sr) {
 		/* de-initialize the port. */
 		mtip_deinit_port(dd->port);
@@ -3341,8 +3414,7 @@ static int mtip_hw_shutdown(struct drive
 	 * Send standby immediate (E0h) to the drive so that it
 	 * saves its state.
 	 */
-	if (!dd->sr && dd->port)
-		mtip_standby_immediate(dd->port);
+	mtip_standby_drive(dd);
 
 	return 0;
 }
@@ -3365,7 +3437,7 @@ static int mtip_hw_suspend(struct driver
 	 * Send standby immediate (E0h) to the drive
 	 * so that it saves its state.
 	 */
-	if (mtip_standby_immediate(dd->port) != 0) {
+	if (mtip_standby_drive(dd) != 0) {
 		dev_err(&dd->pdev->dev,
 			"Failed standby-immediate command\n");
 		return -EFAULT;
@@ -3603,6 +3675,28 @@ static int mtip_block_getgeo(struct bloc
 	return 0;
 }
 
+static int mtip_block_open(struct block_device *dev, fmode_t mode)
+{
+	struct driver_data *dd;
+
+	if (dev && dev->bd_disk) {
+		dd = (struct driver_data *) dev->bd_disk->private_data;
+
+		if (dd) {
+			if (test_bit(MTIP_DDF_REMOVAL_BIT,
+							&dd->dd_flag)) {
+				return -ENODEV;
+			}
+			return 0;
+		}
+	}
+	return -ENODEV;
+}
+
+void mtip_block_release(struct gendisk *disk, fmode_t mode)
+{
+}
+
 /*
  * Block device operation function.
  *
@@ -3610,6 +3704,8 @@ static int mtip_block_getgeo(struct bloc
  * layer.
  */
 static const struct block_device_operations mtip_block_ops = {
+	.open		= mtip_block_open,
+	.release	= mtip_block_release,
 	.ioctl		= mtip_block_ioctl,
 #ifdef CONFIG_COMPAT
 	.compat_ioctl	= mtip_block_compat_ioctl,
@@ -3671,10 +3767,9 @@ static int mtip_submit_request(struct bl
 				rq_data_dir(rq))) {
 			return -ENODATA;
 		}
-		if (unlikely(test_bit(MTIP_DDF_SEC_LOCK_BIT, &dd->dd_flag)))
+		if (unlikely(test_bit(MTIP_DDF_SEC_LOCK_BIT, &dd->dd_flag) ||
+			test_bit(MTIP_DDF_REBUILD_FAILED_BIT, &dd->dd_flag)))
 			return -ENODATA;
-		if (test_bit(MTIP_DDF_REBUILD_FAILED_BIT, &dd->dd_flag))
-			return -ENXIO;
 	}
 
 	if (rq->cmd_flags & REQ_DISCARD) {
@@ -3786,11 +3881,33 @@ static int mtip_init_cmd(void *data, str
 	return 0;
 }
 
+static enum blk_eh_timer_return mtip_cmd_timeout(struct request *req,
+								bool reserved)
+{
+	struct driver_data *dd = req->q->queuedata;
+	int ret = BLK_EH_RESET_TIMER;
+
+	if (reserved)
+		goto exit_handler;
+
+	if (test_bit(req->tag, dd->port->cmds_to_issue))
+		goto exit_handler;
+
+	if (test_and_set_bit(MTIP_PF_TO_ACTIVE_BIT, &dd->port->flags))
+		goto exit_handler;
+
+	wake_up_interruptible(&dd->port->svc_wait);
+exit_handler:
+	return ret;
+}
+
 static struct blk_mq_ops mtip_mq_ops = {
 	.queue_rq	= mtip_queue_rq,
 	.map_queue	= blk_mq_map_queue,
 	.init_request	= mtip_init_cmd,
 	.exit_request	= mtip_free_cmd,
+	.complete	= mtip_softirq_done_fn,
+	.timeout        = mtip_cmd_timeout,
 };
 
 /*
@@ -3857,7 +3974,6 @@ static int mtip_block_initialize(struct
 
 	mtip_hw_debugfs_init(dd);
 
-skip_create_disk:
 	memset(&dd->tags, 0, sizeof(dd->tags));
 	dd->tags.ops = &mtip_mq_ops;
 	dd->tags.nr_hw_queues = 1;
@@ -3867,12 +3983,13 @@ skip_create_disk:
 	dd->tags.numa_node = dd->numa_node;
 	dd->tags.flags = BLK_MQ_F_SHOULD_MERGE;
 	dd->tags.driver_data = dd;
+	dd->tags.timeout = MTIP_NCQ_CMD_TIMEOUT_MS;
 
 	rv = blk_mq_alloc_tag_set(&dd->tags);
 	if (rv) {
 		dev_err(&dd->pdev->dev,
 			"Unable to allocate request queue\n");
-		goto block_queue_alloc_init_error;
+		goto block_queue_alloc_tag_error;
 	}
 
 	/* Allocate the request queue. */
@@ -3887,6 +4004,7 @@ skip_create_disk:
 	dd->disk->queue		= dd->queue;
 	dd->queue->queuedata	= dd;
 
+skip_create_disk:
 	/* Initialize the protocol layer. */
 	wait_for_rebuild = mtip_hw_get_identify(dd);
 	if (wait_for_rebuild < 0) {
@@ -3983,8 +4101,9 @@ kthread_run_error:
 read_capacity_error:
 init_hw_cmds_error:
 	blk_cleanup_queue(dd->queue);
-	blk_mq_free_tag_set(&dd->tags);
 block_queue_alloc_init_error:
+	blk_mq_free_tag_set(&dd->tags);
+block_queue_alloc_tag_error:
 	mtip_hw_debugfs_exit(dd);
 disk_index_error:
 	spin_lock(&rssd_index_lock);
@@ -4001,6 +4120,22 @@ protocol_init_error:
 	return rv;
 }
 
+static void mtip_no_dev_cleanup(struct request *rq, void *data, bool reserv)
+{
+	struct driver_data *dd = (struct driver_data *)data;
+	struct mtip_cmd *cmd;
+
+	if (likely(!reserv))
+		blk_mq_complete_request(rq, -ENODEV);
+	else if (test_bit(MTIP_PF_IC_ACTIVE_BIT, &dd->port->flags)) {
+
+		cmd = mtip_cmd_from_tag(dd, MTIP_TAG_INTERNAL);
+		if (cmd->comp_func)
+			cmd->comp_func(dd->port, MTIP_TAG_INTERNAL,
+					cmd, -ENODEV);
+	}
+}
+
 /*
  * Block layer deinitialization function.
  *
@@ -4032,12 +4167,23 @@ static int mtip_block_remove(struct driv
 		}
 	}
 
-	if (!dd->sr)
-		mtip_standby_drive(dd);
+	if (!dd->sr) {
+		/*
+		 * Explicitly wait here for IOs to quiesce,
+		 * as mtip_standby_drive usually won't wait for IOs.
+		 */
+		if (!mtip_quiesce_io(dd->port, MTIP_QUIESCE_IO_TIMEOUT_MS,
+								GFP_KERNEL))
+			mtip_standby_drive(dd);
+	}
 	else
 		dev_info(&dd->pdev->dev, "device %s surprise removal\n",
 						dd->disk->disk_name);
 
+	blk_mq_freeze_queue_start(dd->queue);
+	blk_mq_stop_hw_queues(dd->queue);
+	blk_mq_all_tag_busy_iter(dd->tags.tags[0], mtip_no_dev_cleanup, dd);
+
 	/*
 	 * Delete our gendisk structure. This also removes the device
 	 * from /dev
@@ -4047,7 +4193,8 @@ static int mtip_block_remove(struct driv
 		dd->bdev = NULL;
 	}
 	if (dd->disk) {
-		del_gendisk(dd->disk);
+		if (test_bit(MTIP_DDF_INIT_DONE_BIT, &dd->dd_flag))
+			del_gendisk(dd->disk);
 		if (dd->disk->queue) {
 			blk_cleanup_queue(dd->queue);
 			blk_mq_free_tag_set(&dd->tags);
@@ -4088,7 +4235,8 @@ static int mtip_block_shutdown(struct dr
 		dev_info(&dd->pdev->dev,
 			"Shutting down %s ...\n", dd->disk->disk_name);
 
-		del_gendisk(dd->disk);
+		if (test_bit(MTIP_DDF_INIT_DONE_BIT, &dd->dd_flag))
+			del_gendisk(dd->disk);
 		if (dd->disk->queue) {
 			blk_cleanup_queue(dd->queue);
 			blk_mq_free_tag_set(&dd->tags);
@@ -4433,7 +4581,7 @@ static void mtip_pci_remove(struct pci_d
 	struct driver_data *dd = pci_get_drvdata(pdev);
 	unsigned long flags, to;
 
-	set_bit(MTIP_DDF_REMOVE_PENDING_BIT, &dd->dd_flag);
+	set_bit(MTIP_DDF_REMOVAL_BIT, &dd->dd_flag);
 
 	spin_lock_irqsave(&dev_lock, flags);
 	list_del_init(&dd->online_list);
@@ -4450,12 +4598,17 @@ static void mtip_pci_remove(struct pci_d
 	} while (atomic_read(&dd->irq_workers_active) != 0 &&
 		time_before(jiffies, to));
 
+	if (!dd->sr)
+		fsync_bdev(dd->bdev);
+
 	if (atomic_read(&dd->irq_workers_active) != 0) {
 		dev_warn(&dd->pdev->dev,
 			"Completion workers still active!\n");
 	}
 
-	blk_mq_stop_hw_queues(dd->queue);
+	blk_set_queue_dying(dd->queue);
+	set_bit(MTIP_DDF_REMOVE_PENDING_BIT, &dd->dd_flag);
+
 	/* Clean up the block layer. */
 	mtip_block_remove(dd);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/block/mtip32xx/mtip32xx.h linux-libre-4.4.107-gnu/drivers/block/mtip32xx/mtip32xx.h
--- linux-libre-4.4-gnu/drivers/block/mtip32xx/mtip32xx.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/block/mtip32xx/mtip32xx.h	2017-12-20 04:05:01.000000000 -0500
@@ -134,16 +134,24 @@ enum {
 	MTIP_PF_EH_ACTIVE_BIT       = 1, /* error handling */
 	MTIP_PF_SE_ACTIVE_BIT       = 2, /* secure erase */
 	MTIP_PF_DM_ACTIVE_BIT       = 3, /* download microcde */
+	MTIP_PF_TO_ACTIVE_BIT       = 9, /* timeout handling */
 	MTIP_PF_PAUSE_IO      =	((1 << MTIP_PF_IC_ACTIVE_BIT) |
 				(1 << MTIP_PF_EH_ACTIVE_BIT) |
 				(1 << MTIP_PF_SE_ACTIVE_BIT) |
-				(1 << MTIP_PF_DM_ACTIVE_BIT)),
+				(1 << MTIP_PF_DM_ACTIVE_BIT) |
+				(1 << MTIP_PF_TO_ACTIVE_BIT)),
 
 	MTIP_PF_SVC_THD_ACTIVE_BIT  = 4,
 	MTIP_PF_ISSUE_CMDS_BIT      = 5,
 	MTIP_PF_REBUILD_BIT         = 6,
 	MTIP_PF_SVC_THD_STOP_BIT    = 8,
 
+	MTIP_PF_SVC_THD_WORK	= ((1 << MTIP_PF_EH_ACTIVE_BIT) |
+				  (1 << MTIP_PF_ISSUE_CMDS_BIT) |
+				  (1 << MTIP_PF_REBUILD_BIT) |
+				  (1 << MTIP_PF_SVC_THD_STOP_BIT) |
+				  (1 << MTIP_PF_TO_ACTIVE_BIT)),
+
 	/* below are bit numbers in 'dd_flag' defined in driver_data */
 	MTIP_DDF_SEC_LOCK_BIT	    = 0,
 	MTIP_DDF_REMOVE_PENDING_BIT = 1,
@@ -153,6 +161,7 @@ enum {
 	MTIP_DDF_RESUME_BIT         = 6,
 	MTIP_DDF_INIT_DONE_BIT      = 7,
 	MTIP_DDF_REBUILD_FAILED_BIT = 8,
+	MTIP_DDF_REMOVAL_BIT	    = 9,
 
 	MTIP_DDF_STOP_IO      = ((1 << MTIP_DDF_REMOVE_PENDING_BIT) |
 				(1 << MTIP_DDF_SEC_LOCK_BIT) |
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/block/nbd.c linux-libre-4.4.107-gnu/drivers/block/nbd.c
--- linux-libre-4.4-gnu/drivers/block/nbd.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/block/nbd.c	2017-12-20 04:05:01.000000000 -0500
@@ -618,8 +618,8 @@ static void nbd_request_handler(struct r
 			req, req->cmd_type);
 
 		if (unlikely(!nbd->sock)) {
-			dev_err(disk_to_dev(nbd->disk),
-				"Attempted send on closed socket\n");
+			dev_err_ratelimited(disk_to_dev(nbd->disk),
+					    "Attempted send on closed socket\n");
 			req->errors++;
 			nbd_end_request(nbd, req);
 			spin_lock_irq(q->queue_lock);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/block/paride/pd.c linux-libre-4.4.107-gnu/drivers/block/paride/pd.c
--- linux-libre-4.4-gnu/drivers/block/paride/pd.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/block/paride/pd.c	2017-12-20 04:05:01.000000000 -0500
@@ -126,7 +126,7 @@
 */
 #include <linux/types.h>
 
-static bool verbose = 0;
+static int verbose = 0;
 static int major = PD_MAJOR;
 static char *name = PD_NAME;
 static int cluster = 64;
@@ -161,7 +161,7 @@ enum {D_PRT, D_PRO, D_UNI, D_MOD, D_GEO,
 static DEFINE_MUTEX(pd_mutex);
 static DEFINE_SPINLOCK(pd_lock);
 
-module_param(verbose, bool, 0);
+module_param(verbose, int, 0);
 module_param(major, int, 0);
 module_param(name, charp, 0);
 module_param(cluster, int, 0);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/block/paride/pt.c linux-libre-4.4.107-gnu/drivers/block/paride/pt.c
--- linux-libre-4.4-gnu/drivers/block/paride/pt.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/block/paride/pt.c	2017-12-20 04:05:01.000000000 -0500
@@ -117,7 +117,7 @@
 
 */
 
-static bool verbose = 0;
+static int verbose = 0;
 static int major = PT_MAJOR;
 static char *name = PT_NAME;
 static int disable = 0;
@@ -152,7 +152,7 @@ static int (*drives[4])[6] = {&drive0, &
 
 #include <asm/uaccess.h>
 
-module_param(verbose, bool, 0);
+module_param(verbose, int, 0);
 module_param(major, int, 0);
 module_param(name, charp, 0);
 module_param_array(drive0, int, NULL, 0);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/block/rbd.c linux-libre-4.4.107-gnu/drivers/block/rbd.c
--- linux-libre-4.4-gnu/drivers/block/rbd.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/block/rbd.c	2017-12-20 04:05:01.000000000 -0500
@@ -1955,7 +1955,7 @@ static struct ceph_osd_request *rbd_osd_
 
 	osdc = &rbd_dev->rbd_client->client->osdc;
 	osd_req = ceph_osdc_alloc_request(osdc, snapc, num_ops, false,
-					  GFP_ATOMIC);
+					  GFP_NOIO);
 	if (!osd_req)
 		return NULL;	/* ENOMEM */
 
@@ -2004,7 +2004,7 @@ rbd_osd_req_create_copyup(struct rbd_obj
 	rbd_dev = img_request->rbd_dev;
 	osdc = &rbd_dev->rbd_client->client->osdc;
 	osd_req = ceph_osdc_alloc_request(osdc, snapc, num_osd_ops,
-						false, GFP_ATOMIC);
+						false, GFP_NOIO);
 	if (!osd_req)
 		return NULL;	/* ENOMEM */
 
@@ -2506,7 +2506,7 @@ static int rbd_img_request_fill(struct r
 					bio_chain_clone_range(&bio_list,
 								&bio_offset,
 								clone_size,
-								GFP_ATOMIC);
+								GFP_NOIO);
 			if (!obj_request->bio_list)
 				goto out_unwind;
 		} else if (type == OBJ_REQUEST_PAGES) {
@@ -2736,7 +2736,7 @@ static int rbd_img_obj_parent_read_full(
 	 * from the parent.
 	 */
 	page_count = (u32)calc_pages_for(0, length);
-	pages = ceph_alloc_page_vector(page_count, GFP_KERNEL);
+	pages = ceph_alloc_page_vector(page_count, GFP_NOIO);
 	if (IS_ERR(pages)) {
 		result = PTR_ERR(pages);
 		pages = NULL;
@@ -2863,7 +2863,7 @@ static int rbd_img_obj_exists_submit(str
 	 */
 	size = sizeof (__le64) + sizeof (__le32) + sizeof (__le32);
 	page_count = (u32)calc_pages_for(0, size);
-	pages = ceph_alloc_page_vector(page_count, GFP_KERNEL);
+	pages = ceph_alloc_page_vector(page_count, GFP_NOIO);
 	if (IS_ERR(pages))
 		return PTR_ERR(pages);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/block/skd_main.c linux-libre-4.4.107-gnu/drivers/block/skd_main.c
--- linux-libre-4.4-gnu/drivers/block/skd_main.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/block/skd_main.c	2017-12-20 04:05:01.000000000 -0500
@@ -2214,6 +2214,9 @@ static void skd_send_fitmsg(struct skd_d
 		 */
 		qcmd |= FIT_QCMD_MSGSIZE_64;
 
+	/* Make sure skd_msg_buf is written before the doorbell is triggered. */
+	smp_wmb();
+
 	SKD_WRITEQ(skdev, qcmd, FIT_Q_COMMAND);
 
 }
@@ -2260,6 +2263,9 @@ static void skd_send_special_fitmsg(stru
 	qcmd = skspcl->mb_dma_address;
 	qcmd |= FIT_QCMD_QID_NORMAL + FIT_QCMD_MSGSIZE_128;
 
+	/* Make sure skd_msg_buf is written before the doorbell is triggered. */
+	smp_wmb();
+
 	SKD_WRITEQ(skdev, qcmd, FIT_Q_COMMAND);
 }
 
@@ -4679,15 +4685,16 @@ static void skd_free_disk(struct skd_dev
 {
 	struct gendisk *disk = skdev->disk;
 
-	if (disk != NULL) {
-		struct request_queue *q = disk->queue;
+	if (disk && (disk->flags & GENHD_FL_UP))
+		del_gendisk(disk);
 
-		if (disk->flags & GENHD_FL_UP)
-			del_gendisk(disk);
-		if (q)
-			blk_cleanup_queue(q);
-		put_disk(disk);
+	if (skdev->queue) {
+		blk_cleanup_queue(skdev->queue);
+		skdev->queue = NULL;
+		disk->queue = NULL;
 	}
+
+	put_disk(disk);
 	skdev->disk = NULL;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/block/virtio_blk.c linux-libre-4.4.107-gnu/drivers/block/virtio_blk.c
--- linux-libre-4.4-gnu/drivers/block/virtio_blk.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/block/virtio_blk.c	2017-12-20 04:05:01.000000000 -0500
@@ -641,11 +641,12 @@ static int virtblk_probe(struct virtio_d
 	if (err)
 		goto out_put_disk;
 
-	q = vblk->disk->queue = blk_mq_init_queue(&vblk->tag_set);
+	q = blk_mq_init_queue(&vblk->tag_set);
 	if (IS_ERR(q)) {
 		err = -ENOMEM;
 		goto out_free_tags;
 	}
+	vblk->disk->queue = q;
 
 	q->queuedata = vblk;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/block/xen-blkback/blkback.c linux-libre-4.4.107-gnu/drivers/block/xen-blkback/blkback.c
--- linux-libre-4.4-gnu/drivers/block/xen-blkback/blkback.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/block/xen-blkback/blkback.c	2017-12-20 04:05:01.000000000 -0500
@@ -595,8 +595,6 @@ int xen_blkif_schedule(void *arg)
 	unsigned long timeout;
 	int ret;
 
-	xen_blkif_get(blkif);
-
 	while (!kthread_should_stop()) {
 		if (try_to_freeze())
 			continue;
@@ -650,7 +648,6 @@ purge_gnt_list:
 		print_stats(blkif);
 
 	blkif->xenblkd = NULL;
-	xen_blkif_put(blkif);
 
 	return 0;
 }
@@ -1410,33 +1407,34 @@ static int dispatch_rw_block_io(struct x
 static void make_response(struct xen_blkif *blkif, u64 id,
 			  unsigned short op, int st)
 {
-	struct blkif_response  resp;
+	struct blkif_response *resp;
 	unsigned long     flags;
 	union blkif_back_rings *blk_rings = &blkif->blk_rings;
 	int notify;
 
-	resp.id        = id;
-	resp.operation = op;
-	resp.status    = st;
-
 	spin_lock_irqsave(&blkif->blk_ring_lock, flags);
 	/* Place on the response ring for the relevant domain. */
 	switch (blkif->blk_protocol) {
 	case BLKIF_PROTOCOL_NATIVE:
-		memcpy(RING_GET_RESPONSE(&blk_rings->native, blk_rings->native.rsp_prod_pvt),
-		       &resp, sizeof(resp));
+		resp = RING_GET_RESPONSE(&blk_rings->native,
+					 blk_rings->native.rsp_prod_pvt);
 		break;
 	case BLKIF_PROTOCOL_X86_32:
-		memcpy(RING_GET_RESPONSE(&blk_rings->x86_32, blk_rings->x86_32.rsp_prod_pvt),
-		       &resp, sizeof(resp));
+		resp = RING_GET_RESPONSE(&blk_rings->x86_32,
+					 blk_rings->x86_32.rsp_prod_pvt);
 		break;
 	case BLKIF_PROTOCOL_X86_64:
-		memcpy(RING_GET_RESPONSE(&blk_rings->x86_64, blk_rings->x86_64.rsp_prod_pvt),
-		       &resp, sizeof(resp));
+		resp = RING_GET_RESPONSE(&blk_rings->x86_64,
+					 blk_rings->x86_64.rsp_prod_pvt);
 		break;
 	default:
 		BUG();
 	}
+
+	resp->id        = id;
+	resp->operation = op;
+	resp->status    = st;
+
 	blk_rings->common.rsp_prod_pvt++;
 	RING_PUSH_RESPONSES_AND_CHECK_NOTIFY(&blk_rings->common, notify);
 	spin_unlock_irqrestore(&blkif->blk_ring_lock, flags);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/block/xen-blkback/common.h linux-libre-4.4.107-gnu/drivers/block/xen-blkback/common.h
--- linux-libre-4.4-gnu/drivers/block/xen-blkback/common.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/block/xen-blkback/common.h	2017-12-20 04:05:01.000000000 -0500
@@ -74,9 +74,8 @@ extern unsigned int xen_blkif_max_ring_o
 struct blkif_common_request {
 	char dummy;
 };
-struct blkif_common_response {
-	char dummy;
-};
+
+/* i386 protocol version */
 
 struct blkif_x86_32_request_rw {
 	uint8_t        nr_segments;  /* number of segments                   */
@@ -128,14 +127,6 @@ struct blkif_x86_32_request {
 	} u;
 } __attribute__((__packed__));
 
-/* i386 protocol version */
-#pragma pack(push, 4)
-struct blkif_x86_32_response {
-	uint64_t        id;              /* copied from request */
-	uint8_t         operation;       /* copied from request */
-	int16_t         status;          /* BLKIF_RSP_???       */
-};
-#pragma pack(pop)
 /* x86_64 protocol version */
 
 struct blkif_x86_64_request_rw {
@@ -192,18 +183,12 @@ struct blkif_x86_64_request {
 	} u;
 } __attribute__((__packed__));
 
-struct blkif_x86_64_response {
-	uint64_t       __attribute__((__aligned__(8))) id;
-	uint8_t         operation;       /* copied from request */
-	int16_t         status;          /* BLKIF_RSP_???       */
-};
-
 DEFINE_RING_TYPES(blkif_common, struct blkif_common_request,
-		  struct blkif_common_response);
+		  struct blkif_response);
 DEFINE_RING_TYPES(blkif_x86_32, struct blkif_x86_32_request,
-		  struct blkif_x86_32_response);
+		  struct blkif_response __packed);
 DEFINE_RING_TYPES(blkif_x86_64, struct blkif_x86_64_request,
-		  struct blkif_x86_64_response);
+		  struct blkif_response);
 
 union blkif_back_rings {
 	struct blkif_back_ring        native;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/block/xen-blkback/xenbus.c linux-libre-4.4.107-gnu/drivers/block/xen-blkback/xenbus.c
--- linux-libre-4.4-gnu/drivers/block/xen-blkback/xenbus.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/block/xen-blkback/xenbus.c	2017-12-20 04:05:01.000000000 -0500
@@ -221,7 +221,6 @@ static int xen_blkif_disconnect(struct x
 	if (blkif->xenblkd) {
 		kthread_stop(blkif->xenblkd);
 		wake_up(&blkif->shutdown_wq);
-		blkif->xenblkd = NULL;
 	}
 
 	/* The above kthread_stop() guarantees that at this point we
@@ -266,9 +265,10 @@ static int xen_blkif_disconnect(struct x
 
 static void xen_blkif_free(struct xen_blkif *blkif)
 {
-
-	xen_blkif_disconnect(blkif);
+	WARN_ON(xen_blkif_disconnect(blkif));
 	xen_vbd_free(&blkif->vbd);
+	kfree(blkif->be->mode);
+	kfree(blkif->be);
 
 	/* Make sure everything is drained before shutting down */
 	BUG_ON(blkif->persistent_gnt_c != 0);
@@ -445,8 +445,6 @@ static int xen_blkbk_remove(struct xenbu
 		xen_blkif_put(be->blkif);
 	}
 
-	kfree(be->mode);
-	kfree(be);
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/block/zram/zcomp.c linux-libre-4.4.107-gnu/drivers/block/zram/zcomp.c
--- linux-libre-4.4-gnu/drivers/block/zram/zcomp.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/block/zram/zcomp.c	2017-12-20 04:05:01.000000000 -0500
@@ -76,7 +76,7 @@ static void zcomp_strm_free(struct zcomp
  */
 static struct zcomp_strm *zcomp_strm_alloc(struct zcomp *comp)
 {
-	struct zcomp_strm *zstrm = kmalloc(sizeof(*zstrm), GFP_KERNEL);
+	struct zcomp_strm *zstrm = kmalloc(sizeof(*zstrm), GFP_NOIO);
 	if (!zstrm)
 		return NULL;
 
@@ -85,7 +85,7 @@ static struct zcomp_strm *zcomp_strm_all
 	 * allocate 2 pages. 1 for compressed data, plus 1 extra for the
 	 * case when compressed size is larger than the original one
 	 */
-	zstrm->buffer = (void *)__get_free_pages(GFP_KERNEL | __GFP_ZERO, 1);
+	zstrm->buffer = (void *)__get_free_pages(GFP_NOIO | __GFP_ZERO, 1);
 	if (!zstrm->private || !zstrm->buffer) {
 		zcomp_strm_free(comp, zstrm);
 		zstrm = NULL;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/block/zram/zcomp_lz4.c linux-libre-4.4.107-gnu/drivers/block/zram/zcomp_lz4.c
--- linux-libre-4.4-gnu/drivers/block/zram/zcomp_lz4.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/block/zram/zcomp_lz4.c	2017-12-20 04:05:01.000000000 -0500
@@ -10,17 +10,36 @@
 #include <linux/kernel.h>
 #include <linux/slab.h>
 #include <linux/lz4.h>
+#include <linux/vmalloc.h>
+#include <linux/mm.h>
 
 #include "zcomp_lz4.h"
 
 static void *zcomp_lz4_create(void)
 {
-	return kzalloc(LZ4_MEM_COMPRESS, GFP_KERNEL);
+	void *ret;
+
+	/*
+	 * This function can be called in swapout/fs write path
+	 * so we can't use GFP_FS|IO. And it assumes we already
+	 * have at least one stream in zram initialization so we
+	 * don't do best effort to allocate more stream in here.
+	 * A default stream will work well without further multiple
+	 * streams. That's why we use NORETRY | NOWARN.
+	 */
+	ret = kzalloc(LZ4_MEM_COMPRESS, GFP_NOIO | __GFP_NORETRY |
+					__GFP_NOWARN);
+	if (!ret)
+		ret = __vmalloc(LZ4_MEM_COMPRESS,
+				GFP_NOIO | __GFP_NORETRY | __GFP_NOWARN |
+				__GFP_ZERO | __GFP_HIGHMEM,
+				PAGE_KERNEL);
+	return ret;
 }
 
 static void zcomp_lz4_destroy(void *private)
 {
-	kfree(private);
+	kvfree(private);
 }
 
 static int zcomp_lz4_compress(const unsigned char *src, unsigned char *dst,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/block/zram/zcomp_lzo.c linux-libre-4.4.107-gnu/drivers/block/zram/zcomp_lzo.c
--- linux-libre-4.4-gnu/drivers/block/zram/zcomp_lzo.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/block/zram/zcomp_lzo.c	2017-12-20 04:05:01.000000000 -0500
@@ -10,17 +10,36 @@
 #include <linux/kernel.h>
 #include <linux/slab.h>
 #include <linux/lzo.h>
+#include <linux/vmalloc.h>
+#include <linux/mm.h>
 
 #include "zcomp_lzo.h"
 
 static void *lzo_create(void)
 {
-	return kzalloc(LZO1X_MEM_COMPRESS, GFP_KERNEL);
+	void *ret;
+
+	/*
+	 * This function can be called in swapout/fs write path
+	 * so we can't use GFP_FS|IO. And it assumes we already
+	 * have at least one stream in zram initialization so we
+	 * don't do best effort to allocate more stream in here.
+	 * A default stream will work well without further multiple
+	 * streams. That's why we use NORETRY | NOWARN.
+	 */
+	ret = kzalloc(LZO1X_MEM_COMPRESS, GFP_NOIO | __GFP_NORETRY |
+					__GFP_NOWARN);
+	if (!ret)
+		ret = __vmalloc(LZO1X_MEM_COMPRESS,
+				GFP_NOIO | __GFP_NORETRY | __GFP_NOWARN |
+				__GFP_ZERO | __GFP_HIGHMEM,
+				PAGE_KERNEL);
+	return ret;
 }
 
 static void lzo_destroy(void *private)
 {
-	kfree(private);
+	kvfree(private);
 }
 
 static int lzo_compress(const unsigned char *src, unsigned char *dst,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/block/zram/zram_drv.c linux-libre-4.4.107-gnu/drivers/block/zram/zram_drv.c
--- linux-libre-4.4-gnu/drivers/block/zram/zram_drv.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/block/zram/zram_drv.c	2017-12-20 04:05:01.000000000 -0500
@@ -574,13 +574,13 @@ static int zram_decompress_page(struct z
 
 	if (!handle || zram_test_flag(meta, index, ZRAM_ZERO)) {
 		bit_spin_unlock(ZRAM_ACCESS, &meta->table[index].value);
-		clear_page(mem);
+		memset(mem, 0, PAGE_SIZE);
 		return 0;
 	}
 
 	cmem = zs_map_object(meta->mem_pool, handle, ZS_MM_RO);
 	if (size == PAGE_SIZE)
-		copy_page(mem, cmem);
+		memcpy(mem, cmem, PAGE_SIZE);
 	else
 		ret = zcomp_decompress(zram->comp, cmem, size, mem);
 	zs_unmap_object(meta->mem_pool, handle);
@@ -738,7 +738,7 @@ static int zram_bvec_write(struct zram *
 
 	if ((clen == PAGE_SIZE) && !is_partial_io(bvec)) {
 		src = kmap_atomic(page);
-		copy_page(cmem, src);
+		memcpy(cmem, src, PAGE_SIZE);
 		kunmap_atomic(src);
 	} else {
 		memcpy(cmem, src, clen);
@@ -1247,6 +1247,8 @@ static int zram_add(void)
 	blk_queue_io_min(zram->disk->queue, PAGE_SIZE);
 	blk_queue_io_opt(zram->disk->queue, PAGE_SIZE);
 	zram->disk->queue->limits.discard_granularity = PAGE_SIZE;
+	zram->disk->queue->limits.max_sectors = SECTORS_PER_PAGE;
+	zram->disk->queue->limits.chunk_sectors = 0;
 	blk_queue_max_discard_sectors(zram->disk->queue, UINT_MAX);
 	/*
 	 * zram_bio_discard() will clear all logical blocks if logical block
@@ -1325,7 +1327,6 @@ static int zram_remove(struct zram *zram
 
 	pr_info("Removed device: %s\n", zram->disk->disk_name);
 
-	idr_remove(&zram_index_idr, zram->disk->first_minor);
 	blk_cleanup_queue(zram->disk->queue);
 	del_gendisk(zram->disk);
 	put_disk(zram->disk);
@@ -1367,17 +1368,26 @@ static ssize_t hot_remove_store(struct c
 	mutex_lock(&zram_index_mutex);
 
 	zram = idr_find(&zram_index_idr, dev_id);
-	if (zram)
+	if (zram) {
 		ret = zram_remove(zram);
-	else
+		if (!ret)
+			idr_remove(&zram_index_idr, dev_id);
+	} else {
 		ret = -ENODEV;
+	}
 
 	mutex_unlock(&zram_index_mutex);
 	return ret ? ret : count;
 }
 
+/*
+ * NOTE: hot_add attribute is not the usual read-only sysfs attribute. In a
+ * sense that reading from this file does alter the state of your system -- it
+ * creates a new un-initialized zram device and returns back this device's
+ * device_id (or an error code if it fails to create a new device).
+ */
 static struct class_attribute zram_control_class_attrs[] = {
-	__ATTR_RO(hot_add),
+	__ATTR(hot_add, 0400, hot_add_show, NULL),
 	__ATTR_WO(hot_remove),
 	__ATTR_NULL,
 };
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/bluetooth/ath3k.c linux-libre-4.4.107-gnu/drivers/bluetooth/ath3k.c
--- linux-libre-4.4-gnu/drivers/bluetooth/ath3k.c	2016-01-10 21:11:47.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/bluetooth/ath3k.c	2017-12-20 11:38:36.000000000 -0500
@@ -82,6 +82,7 @@ static const struct usb_device_id ath3k_
 	{ USB_DEVICE(0x0489, 0xe05f) },
 	{ USB_DEVICE(0x0489, 0xe076) },
 	{ USB_DEVICE(0x0489, 0xe078) },
+	{ USB_DEVICE(0x0489, 0xe095) },
 	{ USB_DEVICE(0x04c5, 0x1330) },
 	{ USB_DEVICE(0x04CA, 0x3004) },
 	{ USB_DEVICE(0x04CA, 0x3005) },
@@ -92,6 +93,8 @@ static const struct usb_device_id ath3k_
 	{ USB_DEVICE(0x04CA, 0x300d) },
 	{ USB_DEVICE(0x04CA, 0x300f) },
 	{ USB_DEVICE(0x04CA, 0x3010) },
+	{ USB_DEVICE(0x04CA, 0x3014) },
+	{ USB_DEVICE(0x04CA, 0x3018) },
 	{ USB_DEVICE(0x0930, 0x0219) },
 	{ USB_DEVICE(0x0930, 0x021c) },
 	{ USB_DEVICE(0x0930, 0x0220) },
@@ -113,10 +116,12 @@ static const struct usb_device_id ath3k_
 	{ USB_DEVICE(0x13d3, 0x3362) },
 	{ USB_DEVICE(0x13d3, 0x3375) },
 	{ USB_DEVICE(0x13d3, 0x3393) },
+	{ USB_DEVICE(0x13d3, 0x3395) },
 	{ USB_DEVICE(0x13d3, 0x3402) },
 	{ USB_DEVICE(0x13d3, 0x3408) },
 	{ USB_DEVICE(0x13d3, 0x3423) },
 	{ USB_DEVICE(0x13d3, 0x3432) },
+	{ USB_DEVICE(0x13d3, 0x3472) },
 	{ USB_DEVICE(0x13d3, 0x3474) },
 
 	/* Atheros AR5BBU12 with sflash firmware */
@@ -144,6 +149,7 @@ static const struct usb_device_id ath3k_
 	{ USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 },
+	{ USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
@@ -154,6 +160,8 @@ static const struct usb_device_id ath3k_
 	{ USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
+	{ USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 },
+	{ USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
@@ -175,10 +183,12 @@ static const struct usb_device_id ath3k_
 	{ USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
+	{ USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
+	{ USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 },
 
 	/* Atheros AR5BBU22 with sflash firmware */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/bluetooth/btusb.c linux-libre-4.4.107-gnu/drivers/bluetooth/btusb.c
--- linux-libre-4.4-gnu/drivers/bluetooth/btusb.c	2016-01-10 21:12:01.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/bluetooth/btusb.c	2017-12-20 11:39:05.000000000 -0500
@@ -153,6 +153,10 @@ static const struct usb_device_id btusb_
 	{ USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01),
 	  .driver_info = BTUSB_BCM_PATCHRAM },
 
+	/* Toshiba Corp - Broadcom based */
+	{ USB_VENDOR_AND_INTERFACE_INFO(0x0930, 0xff, 0x01, 0x01),
+	  .driver_info = BTUSB_BCM_PATCHRAM },
+
 	/* Intel Bluetooth USB Bootloader (RAM module) */
 	{ USB_DEVICE(0x8087, 0x0a5a),
 	  .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC },
@@ -192,6 +196,7 @@ static const struct usb_device_id blackl
 	{ USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 },
+	{ USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
@@ -202,6 +207,8 @@ static const struct usb_device_id blackl
 	{ USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
+	{ USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 },
+	{ USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
@@ -223,10 +230,12 @@ static const struct usb_device_id blackl
 	{ USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
+	{ USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
+	{ USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 },
 
 	/* Atheros AR5BBU12 with sflash firmware */
@@ -324,6 +333,7 @@ static const struct usb_device_id blackl
 	{ USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK },
 	{ USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK },
 	{ USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK },
+	{ USB_DEVICE(0x13d3, 0x3494), .driver_info = BTUSB_REALTEK },
 
 	/* Additional Realtek 8821AE Bluetooth devices */
 	{ USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK },
@@ -1040,6 +1050,10 @@ static int btusb_open(struct hci_dev *hd
 		return err;
 
 	data->intf->needs_remote_wakeup = 1;
+	/* device specific wakeup source enabled and required for USB
+	 * remote wakeup while host is suspended
+	 */
+	device_wakeup_enable(&data->udev->dev);
 
 	if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
 		goto done;
@@ -1103,6 +1117,7 @@ static int btusb_close(struct hci_dev *h
 		goto failed;
 
 	data->intf->needs_remote_wakeup = 0;
+	device_wakeup_disable(&data->udev->dev);
 	usb_autopm_put_interface(data->intf);
 
 failed:
@@ -2048,12 +2063,13 @@ static int btusb_setup_intel_new(struct
 		return -EINVAL;
 	}
 
-	/* At the moment only the hardware variant iBT 3.0 (LnP/SfP) is
-	 * supported by this firmware loading method. This check has been
-	 * put in place to ensure correct forward compatibility options
-	 * when newer hardware variants come along.
+	/* At the moment the iBT 3.0 hardware variants 0x0b (LnP/SfP)
+	 * and 0x0c (WsP) are supported by this firmware loading method.
+	 *
+	 * This check has been put in place to ensure correct forward
+	 * compatibility options when newer hardware variants come along.
 	 */
-	if (ver->hw_variant != 0x0b) {
+	if (ver->hw_variant != 0x0b && ver->hw_variant != 0x0c) {
 		BT_ERR("%s: Unsupported Intel hardware variant (%u)",
 		       hdev->name, ver->hw_variant);
 		kfree_skb(skb);
@@ -2958,6 +2974,12 @@ static int btusb_probe(struct usb_interf
 	if (id->driver_info & BTUSB_QCA_ROME) {
 		data->setup_on_usb = btusb_setup_qca;
 		hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
+
+		/* QCA Rome devices lose their updated firmware over suspend,
+		 * but the USB hub doesn't notice any status change.
+		 * Explicitly request a device reset on resume.
+		 */
+		set_bit(BTUSB_RESET_RESUME, &data->flags);
 	}
 
 #ifdef CONFIG_BT_HCIBTUSB_RTL
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/bluetooth/hci_bcm.c linux-libre-4.4.107-gnu/drivers/bluetooth/hci_bcm.c
--- linux-libre-4.4-gnu/drivers/bluetooth/hci_bcm.c	2016-01-10 21:11:52.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/bluetooth/hci_bcm.c	2017-12-20 11:38:46.000000000 -0500
@@ -287,6 +287,9 @@ static int bcm_open(struct hci_uart *hu)
 
 	hu->priv = bcm;
 
+	if (!hu->tty->dev)
+		goto out;
+
 	mutex_lock(&bcm_device_lock);
 	list_for_each(p, &bcm_device_list) {
 		struct bcm_device *dev = list_entry(p, struct bcm_device, list);
@@ -307,7 +310,7 @@ static int bcm_open(struct hci_uart *hu)
 	}
 
 	mutex_unlock(&bcm_device_lock);
-
+out:
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/bluetooth/hci_intel.c linux-libre-4.4.107-gnu/drivers/bluetooth/hci_intel.c
--- linux-libre-4.4-gnu/drivers/bluetooth/hci_intel.c	2016-01-10 21:12:06.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/bluetooth/hci_intel.c	2017-12-20 11:39:13.000000000 -0500
@@ -307,6 +307,9 @@ static int intel_set_power(struct hci_ua
 	struct list_head *p;
 	int err = -ENODEV;
 
+	if (!hu->tty->dev)
+		return err;
+
 	mutex_lock(&intel_device_list_lock);
 
 	list_for_each(p, &intel_device_list) {
@@ -379,6 +382,9 @@ static void intel_busy_work(struct work_
 	struct intel_data *intel = container_of(work, struct intel_data,
 						busy_work);
 
+	if (!intel->hu->tty->dev)
+		return;
+
 	/* Link is busy, delay the suspend */
 	mutex_lock(&intel_device_list_lock);
 	list_for_each(p, &intel_device_list) {
@@ -913,6 +919,8 @@ done:
 	list_for_each(p, &intel_device_list) {
 		struct intel_device *dev = list_entry(p, struct intel_device,
 						      list);
+		if (!hu->tty->dev)
+			break;
 		if (hu->tty->dev->parent == dev->pdev->dev.parent) {
 			if (device_may_wakeup(&dev->pdev->dev))
 				idev = dev;
@@ -1094,6 +1102,9 @@ static int intel_enqueue(struct hci_uart
 
 	BT_DBG("hu %p skb %p", hu, skb);
 
+	if (!hu->tty->dev)
+		goto out_enqueue;
+
 	/* Be sure our controller is resumed and potential LPM transaction
 	 * completed before enqueuing any packet.
 	 */
@@ -1110,7 +1121,7 @@ static int intel_enqueue(struct hci_uart
 		}
 	}
 	mutex_unlock(&intel_device_list_lock);
-
+out_enqueue:
 	skb_queue_tail(&intel->txq, skb);
 
 	return 0;
@@ -1234,8 +1245,7 @@ static int intel_probe(struct platform_d
 
 	idev->pdev = pdev;
 
-	idev->reset = devm_gpiod_get_optional(&pdev->dev, "reset",
-					      GPIOD_OUT_LOW);
+	idev->reset = devm_gpiod_get(&pdev->dev, "reset", GPIOD_OUT_LOW);
 	if (IS_ERR(idev->reset)) {
 		dev_err(&pdev->dev, "Unable to retrieve gpio\n");
 		return PTR_ERR(idev->reset);
@@ -1247,8 +1257,7 @@ static int intel_probe(struct platform_d
 
 		dev_err(&pdev->dev, "No IRQ, falling back to gpio-irq\n");
 
-		host_wake = devm_gpiod_get_optional(&pdev->dev, "host-wake",
-						    GPIOD_IN);
+		host_wake = devm_gpiod_get(&pdev->dev, "host-wake", GPIOD_IN);
 		if (IS_ERR(host_wake)) {
 			dev_err(&pdev->dev, "Unable to retrieve IRQ\n");
 			goto no_irq;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/bluetooth/hci_vhci.c linux-libre-4.4.107-gnu/drivers/bluetooth/hci_vhci.c
--- linux-libre-4.4-gnu/drivers/bluetooth/hci_vhci.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/bluetooth/hci_vhci.c	2017-12-20 04:05:01.000000000 -0500
@@ -50,6 +50,7 @@ struct vhci_data {
 	wait_queue_head_t read_wait;
 	struct sk_buff_head readq;
 
+	struct mutex open_mutex;
 	struct delayed_work open_timeout;
 };
 
@@ -87,12 +88,15 @@ static int vhci_send_frame(struct hci_de
 	return 0;
 }
 
-static int vhci_create_device(struct vhci_data *data, __u8 opcode)
+static int __vhci_create_device(struct vhci_data *data, __u8 opcode)
 {
 	struct hci_dev *hdev;
 	struct sk_buff *skb;
 	__u8 dev_type;
 
+	if (data->hdev)
+		return -EBADFD;
+
 	/* bits 0-1 are dev_type (BR/EDR or AMP) */
 	dev_type = opcode & 0x03;
 
@@ -151,6 +155,17 @@ static int vhci_create_device(struct vhc
 	return 0;
 }
 
+static int vhci_create_device(struct vhci_data *data, __u8 opcode)
+{
+	int err;
+
+	mutex_lock(&data->open_mutex);
+	err = __vhci_create_device(data, opcode);
+	mutex_unlock(&data->open_mutex);
+
+	return err;
+}
+
 static inline ssize_t vhci_get_user(struct vhci_data *data,
 				    struct iov_iter *from)
 {
@@ -189,11 +204,6 @@ static inline ssize_t vhci_get_user(stru
 		break;
 
 	case HCI_VENDOR_PKT:
-		if (data->hdev) {
-			kfree_skb(skb);
-			return -EBADFD;
-		}
-
 		cancel_delayed_work_sync(&data->open_timeout);
 
 		opcode = *((__u8 *) skb->data);
@@ -320,6 +330,7 @@ static int vhci_open(struct inode *inode
 	skb_queue_head_init(&data->readq);
 	init_waitqueue_head(&data->read_wait);
 
+	mutex_init(&data->open_mutex);
 	INIT_DELAYED_WORK(&data->open_timeout, vhci_open_timeout);
 
 	file->private_data = data;
@@ -333,15 +344,18 @@ static int vhci_open(struct inode *inode
 static int vhci_release(struct inode *inode, struct file *file)
 {
 	struct vhci_data *data = file->private_data;
-	struct hci_dev *hdev = data->hdev;
+	struct hci_dev *hdev;
 
 	cancel_delayed_work_sync(&data->open_timeout);
 
+	hdev = data->hdev;
+
 	if (hdev) {
 		hci_unregister_dev(hdev);
 		hci_free_dev(hdev);
 	}
 
+	skb_queue_purge(&data->readq);
 	file->private_data = NULL;
 	kfree(data);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/bus/arm-ccn.c linux-libre-4.4.107-gnu/drivers/bus/arm-ccn.c
--- linux-libre-4.4-gnu/drivers/bus/arm-ccn.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/bus/arm-ccn.c	2017-12-20 04:05:01.000000000 -0500
@@ -187,6 +187,7 @@ struct arm_ccn {
 	struct arm_ccn_component *xp;
 
 	struct arm_ccn_dt dt;
+	int mn_id;
 };
 
 
@@ -326,6 +327,7 @@ struct arm_ccn_pmu_event {
 static ssize_t arm_ccn_pmu_event_show(struct device *dev,
 		struct device_attribute *attr, char *buf)
 {
+	struct arm_ccn *ccn = pmu_to_arm_ccn(dev_get_drvdata(dev));
 	struct arm_ccn_pmu_event *event = container_of(attr,
 			struct arm_ccn_pmu_event, attr);
 	ssize_t res;
@@ -352,6 +354,9 @@ static ssize_t arm_ccn_pmu_event_show(st
 			res += snprintf(buf + res, PAGE_SIZE - res,
 					",cmp_l=?,cmp_h=?,mask=?");
 		break;
+	case CCN_TYPE_MN:
+		res += snprintf(buf + res, PAGE_SIZE - res, ",node=%d", ccn->mn_id);
+		break;
 	default:
 		res += snprintf(buf + res, PAGE_SIZE - res, ",node=?");
 		break;
@@ -381,9 +386,9 @@ static umode_t arm_ccn_pmu_events_is_vis
 }
 
 static struct arm_ccn_pmu_event arm_ccn_pmu_events[] = {
-	CCN_EVENT_MN(eobarrier, "dir=0,vc=0,cmp_h=0x1c00", CCN_IDX_MASK_OPCODE),
-	CCN_EVENT_MN(ecbarrier, "dir=0,vc=0,cmp_h=0x1e00", CCN_IDX_MASK_OPCODE),
-	CCN_EVENT_MN(dvmop, "dir=0,vc=0,cmp_h=0x2800", CCN_IDX_MASK_OPCODE),
+	CCN_EVENT_MN(eobarrier, "dir=1,vc=0,cmp_h=0x1c00", CCN_IDX_MASK_OPCODE),
+	CCN_EVENT_MN(ecbarrier, "dir=1,vc=0,cmp_h=0x1e00", CCN_IDX_MASK_OPCODE),
+	CCN_EVENT_MN(dvmop, "dir=1,vc=0,cmp_h=0x2800", CCN_IDX_MASK_OPCODE),
 	CCN_EVENT_HNI(txdatflits, "dir=1,vc=3", CCN_IDX_MASK_ANY),
 	CCN_EVENT_HNI(rxdatflits, "dir=0,vc=3", CCN_IDX_MASK_ANY),
 	CCN_EVENT_HNI(txreqflits, "dir=1,vc=0", CCN_IDX_MASK_ANY),
@@ -757,6 +762,12 @@ static int arm_ccn_pmu_event_init(struct
 
 	/* Validate node/xp vs topology */
 	switch (type) {
+	case CCN_TYPE_MN:
+		if (node_xp != ccn->mn_id) {
+			dev_warn(ccn->dev, "Invalid MN ID %d!\n", node_xp);
+			return -EINVAL;
+		}
+		break;
 	case CCN_TYPE_XP:
 		if (node_xp >= ccn->num_xps) {
 			dev_warn(ccn->dev, "Invalid XP ID %d!\n", node_xp);
@@ -884,6 +895,10 @@ static void arm_ccn_pmu_xp_dt_config(str
 	struct arm_ccn_component *xp;
 	u32 val, dt_cfg;
 
+	/* Nothing to do for cycle counter */
+	if (hw->idx == CCN_IDX_PMU_CYCLE_COUNTER)
+		return;
+
 	if (CCN_CONFIG_TYPE(event->attr.config) == CCN_TYPE_XP)
 		xp = &ccn->xp[CCN_CONFIG_XP(event->attr.config)];
 	else
@@ -986,7 +1001,7 @@ static void arm_ccn_pmu_xp_watchpoint_co
 
 	/* Comparison values */
 	writel(cmp_l & 0xffffffff, source->base + CCN_XP_DT_CMP_VAL_L(wp));
-	writel((cmp_l >> 32) & 0xefffffff,
+	writel((cmp_l >> 32) & 0x7fffffff,
 			source->base + CCN_XP_DT_CMP_VAL_L(wp) + 4);
 	writel(cmp_h & 0xffffffff, source->base + CCN_XP_DT_CMP_VAL_H(wp));
 	writel((cmp_h >> 32) & 0x0fffffff,
@@ -994,7 +1009,7 @@ static void arm_ccn_pmu_xp_watchpoint_co
 
 	/* Mask */
 	writel(mask_l & 0xffffffff, source->base + CCN_XP_DT_CMP_MASK_L(wp));
-	writel((mask_l >> 32) & 0xefffffff,
+	writel((mask_l >> 32) & 0x7fffffff,
 			source->base + CCN_XP_DT_CMP_MASK_L(wp) + 4);
 	writel(mask_h & 0xffffffff, source->base + CCN_XP_DT_CMP_MASK_H(wp));
 	writel((mask_h >> 32) & 0x0fffffff,
@@ -1245,6 +1260,7 @@ static int arm_ccn_pmu_init(struct arm_c
 
 	/* Perf driver registration */
 	ccn->dt.pmu = (struct pmu) {
+		.module = THIS_MODULE,
 		.attr_groups = arm_ccn_pmu_attr_groups,
 		.task_ctx_nr = perf_invalid_context,
 		.event_init = arm_ccn_pmu_event_init,
@@ -1368,6 +1384,8 @@ static int arm_ccn_init_nodes(struct arm
 
 	switch (type) {
 	case CCN_TYPE_MN:
+		ccn->mn_id = id;
+		return 0;
 	case CCN_TYPE_DT:
 		return 0;
 	case CCN_TYPE_XP:
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/bus/imx-weim.c linux-libre-4.4.107-gnu/drivers/bus/imx-weim.c
--- linux-libre-4.4-gnu/drivers/bus/imx-weim.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/bus/imx-weim.c	2017-12-20 04:05:01.000000000 -0500
@@ -150,7 +150,7 @@ static int __init weim_parse_dt(struct p
 			return ret;
 	}
 
-	for_each_child_of_node(pdev->dev.of_node, child) {
+	for_each_available_child_of_node(pdev->dev.of_node, child) {
 		if (!child->name)
 			continue;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/bus/mvebu-mbus.c linux-libre-4.4.107-gnu/drivers/bus/mvebu-mbus.c
--- linux-libre-4.4-gnu/drivers/bus/mvebu-mbus.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/bus/mvebu-mbus.c	2017-12-20 04:05:01.000000000 -0500
@@ -720,7 +720,7 @@ mvebu_mbus_default_setup_cpu_target(stru
 			if (mbus->hw_io_coherency)
 				w->mbus_attr |= ATTR_HW_COHERENCY;
 			w->base = base & DDR_BASE_CS_LOW_MASK;
-			w->size = (size | ~DDR_SIZE_MASK) + 1;
+			w->size = (u64)(size | ~DDR_SIZE_MASK) + 1;
 		}
 	}
 	mvebu_mbus_dram_info.num_cs = cs;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/bus/vexpress-config.c linux-libre-4.4.107-gnu/drivers/bus/vexpress-config.c
--- linux-libre-4.4-gnu/drivers/bus/vexpress-config.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/bus/vexpress-config.c	2017-12-20 04:05:01.000000000 -0500
@@ -171,6 +171,7 @@ static int vexpress_config_populate(stru
 {
 	struct device_node *bridge;
 	struct device *parent;
+	int ret;
 
 	bridge = of_parse_phandle(node, "arm,vexpress,config-bridge", 0);
 	if (!bridge)
@@ -181,7 +182,11 @@ static int vexpress_config_populate(stru
 	if (WARN_ON(!parent))
 		return -ENODEV;
 
-	return of_platform_populate(node, NULL, NULL, parent);
+	ret = of_platform_populate(node, NULL, NULL, parent);
+
+	put_device(parent);
+
+	return ret;
 }
 
 static int __init vexpress_config_init(void)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/char/hw_random/core.c linux-libre-4.4.107-gnu/drivers/char/hw_random/core.c
--- linux-libre-4.4-gnu/drivers/char/hw_random/core.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/char/hw_random/core.c	2017-12-20 04:05:01.000000000 -0500
@@ -84,14 +84,14 @@ static size_t rng_buffer_size(void)
 
 static void add_early_randomness(struct hwrng *rng)
 {
-	unsigned char bytes[16];
 	int bytes_read;
+	size_t size = min_t(size_t, 16, rng_buffer_size());
 
 	mutex_lock(&reading_mutex);
-	bytes_read = rng_get_data(rng, bytes, sizeof(bytes), 1);
+	bytes_read = rng_get_data(rng, rng_buffer, size, 1);
 	mutex_unlock(&reading_mutex);
 	if (bytes_read > 0)
-		add_device_randomness(bytes, bytes_read);
+		add_device_randomness(rng_buffer, bytes_read);
 }
 
 static inline void cleanup_rng(struct kref *kref)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/char/hw_random/exynos-rng.c linux-libre-4.4.107-gnu/drivers/char/hw_random/exynos-rng.c
--- linux-libre-4.4-gnu/drivers/char/hw_random/exynos-rng.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/char/hw_random/exynos-rng.c	2017-12-20 04:05:01.000000000 -0500
@@ -89,6 +89,7 @@ static int exynos_read(struct hwrng *rng
 						struct exynos_rng, rng);
 	u32 *data = buf;
 	int retry = 100;
+	int ret = 4;
 
 	pm_runtime_get_sync(exynos_rng->dev);
 
@@ -97,23 +98,27 @@ static int exynos_read(struct hwrng *rng
 	while (!(exynos_rng_readl(exynos_rng,
 			EXYNOS_PRNG_STATUS_OFFSET) & PRNG_DONE) && --retry)
 		cpu_relax();
-	if (!retry)
-		return -ETIMEDOUT;
+	if (!retry) {
+		ret = -ETIMEDOUT;
+		goto out;
+	}
 
 	exynos_rng_writel(exynos_rng, PRNG_DONE, EXYNOS_PRNG_STATUS_OFFSET);
 
 	*data = exynos_rng_readl(exynos_rng, EXYNOS_PRNG_OUT1_OFFSET);
 
+out:
 	pm_runtime_mark_last_busy(exynos_rng->dev);
 	pm_runtime_put_sync_autosuspend(exynos_rng->dev);
 
-	return 4;
+	return ret;
 }
 
 static int exynos_rng_probe(struct platform_device *pdev)
 {
 	struct exynos_rng *exynos_rng;
 	struct resource *res;
+	int ret;
 
 	exynos_rng = devm_kzalloc(&pdev->dev, sizeof(struct exynos_rng),
 					GFP_KERNEL);
@@ -141,7 +146,13 @@ static int exynos_rng_probe(struct platf
 	pm_runtime_use_autosuspend(&pdev->dev);
 	pm_runtime_enable(&pdev->dev);
 
-	return devm_hwrng_register(&pdev->dev, &exynos_rng->rng);
+	ret = devm_hwrng_register(&pdev->dev, &exynos_rng->rng);
+	if (ret) {
+		pm_runtime_dont_use_autosuspend(&pdev->dev);
+		pm_runtime_disable(&pdev->dev);
+	}
+
+	return ret;
 }
 
 #ifdef CONFIG_PM
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/char/hw_random/omap-rng.c linux-libre-4.4.107-gnu/drivers/char/hw_random/omap-rng.c
--- linux-libre-4.4-gnu/drivers/char/hw_random/omap-rng.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/char/hw_random/omap-rng.c	2017-12-20 04:05:01.000000000 -0500
@@ -384,7 +384,12 @@ static int omap_rng_probe(struct platfor
 	}
 
 	pm_runtime_enable(&pdev->dev);
-	pm_runtime_get_sync(&pdev->dev);
+	ret = pm_runtime_get_sync(&pdev->dev);
+	if (ret < 0) {
+		dev_err(&pdev->dev, "Failed to runtime_get device: %d\n", ret);
+		pm_runtime_put_noidle(&pdev->dev);
+		goto err_ioremap;
+	}
 
 	ret = (dev->of_node) ? of_get_omap_rng_device_details(priv, pdev) :
 				get_omap_rng_device_details(priv);
@@ -435,8 +440,15 @@ static int __maybe_unused omap_rng_suspe
 static int __maybe_unused omap_rng_resume(struct device *dev)
 {
 	struct omap_rng_dev *priv = dev_get_drvdata(dev);
+	int ret;
+
+	ret = pm_runtime_get_sync(dev);
+	if (ret < 0) {
+		dev_err(dev, "Failed to runtime_get device: %d\n", ret);
+		pm_runtime_put_noidle(dev);
+		return ret;
+	}
 
-	pm_runtime_get_sync(dev);
 	priv->pdata->init(priv);
 
 	return 0;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/char/ipmi/ipmi_msghandler.c linux-libre-4.4.107-gnu/drivers/char/ipmi/ipmi_msghandler.c
--- linux-libre-4.4-gnu/drivers/char/ipmi/ipmi_msghandler.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/char/ipmi/ipmi_msghandler.c	2017-12-20 04:05:01.000000000 -0500
@@ -3819,6 +3819,7 @@ static void handle_new_recv_msgs(ipmi_sm
 	while (!list_empty(&intf->waiting_rcv_msgs)) {
 		smi_msg = list_entry(intf->waiting_rcv_msgs.next,
 				     struct ipmi_smi_msg, link);
+		list_del(&smi_msg->link);
 		if (!run_to_completion)
 			spin_unlock_irqrestore(&intf->waiting_rcv_msgs_lock,
 					       flags);
@@ -3828,11 +3829,14 @@ static void handle_new_recv_msgs(ipmi_sm
 		if (rv > 0) {
 			/*
 			 * To preserve message order, quit if we
-			 * can't handle a message.
+			 * can't handle a message.  Add the message
+			 * back at the head, this is safe because this
+			 * tasklet is the only thing that pulls the
+			 * messages.
 			 */
+			list_add(&smi_msg->link, &intf->waiting_rcv_msgs);
 			break;
 		} else {
-			list_del(&smi_msg->link);
 			if (rv == 0)
 				/* Message handled */
 				ipmi_free_smi_msg(smi_msg);
@@ -3873,6 +3877,9 @@ static void smi_recv_tasklet(unsigned lo
 	 * because the lower layer is allowed to hold locks while calling
 	 * message delivery.
 	 */
+
+	rcu_read_lock();
+
 	if (!run_to_completion)
 		spin_lock_irqsave(&intf->xmit_msgs_lock, flags);
 	if (intf->curr_msg == NULL && !intf->in_shutdown) {
@@ -3895,6 +3902,8 @@ static void smi_recv_tasklet(unsigned lo
 	if (newmsg)
 		intf->handlers->sender(intf->send_info, newmsg);
 
+	rcu_read_unlock();
+
 	handle_new_recv_msgs(intf);
 }
 
@@ -4020,7 +4029,8 @@ smi_from_recv_msg(ipmi_smi_t intf, struc
 }
 
 static void check_msg_timeout(ipmi_smi_t intf, struct seq_table *ent,
-			      struct list_head *timeouts, long timeout_period,
+			      struct list_head *timeouts,
+			      unsigned long timeout_period,
 			      int slot, unsigned long *flags,
 			      unsigned int *waiting_msgs)
 {
@@ -4033,8 +4043,8 @@ static void check_msg_timeout(ipmi_smi_t
 	if (!ent->inuse)
 		return;
 
-	ent->timeout -= timeout_period;
-	if (ent->timeout > 0) {
+	if (timeout_period < ent->timeout) {
+		ent->timeout -= timeout_period;
 		(*waiting_msgs)++;
 		return;
 	}
@@ -4100,7 +4110,8 @@ static void check_msg_timeout(ipmi_smi_t
 	}
 }
 
-static unsigned int ipmi_timeout_handler(ipmi_smi_t intf, long timeout_period)
+static unsigned int ipmi_timeout_handler(ipmi_smi_t intf,
+					 unsigned long timeout_period)
 {
 	struct list_head     timeouts;
 	struct ipmi_recv_msg *msg, *msg2;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/char/ipmi/ipmi_si_intf.c linux-libre-4.4.107-gnu/drivers/char/ipmi/ipmi_si_intf.c
--- linux-libre-4.4-gnu/drivers/char/ipmi/ipmi_si_intf.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/char/ipmi/ipmi_si_intf.c	2017-12-20 04:05:01.000000000 -0500
@@ -239,6 +239,9 @@ struct smi_info {
 	/* The timer for this si. */
 	struct timer_list   si_timer;
 
+	/* This flag is set, if the timer can be set */
+	bool		    timer_can_start;
+
 	/* This flag is set, if the timer is running (timer_pending() isn't enough) */
 	bool		    timer_running;
 
@@ -414,6 +417,8 @@ static enum si_sm_result start_next_msg(
 
 static void smi_mod_timer(struct smi_info *smi_info, unsigned long new_val)
 {
+	if (!smi_info->timer_can_start)
+		return;
 	smi_info->last_timeout_jiffies = jiffies;
 	mod_timer(&smi_info->si_timer, new_val);
 	smi_info->timer_running = true;
@@ -433,21 +438,18 @@ static void start_new_msg(struct smi_inf
 	smi_info->handlers->start_transaction(smi_info->si_sm, msg, size);
 }
 
-static void start_check_enables(struct smi_info *smi_info, bool start_timer)
+static void start_check_enables(struct smi_info *smi_info)
 {
 	unsigned char msg[2];
 
 	msg[0] = (IPMI_NETFN_APP_REQUEST << 2);
 	msg[1] = IPMI_GET_BMC_GLOBAL_ENABLES_CMD;
 
-	if (start_timer)
-		start_new_msg(smi_info, msg, 2);
-	else
-		smi_info->handlers->start_transaction(smi_info->si_sm, msg, 2);
+	start_new_msg(smi_info, msg, 2);
 	smi_info->si_state = SI_CHECKING_ENABLES;
 }
 
-static void start_clear_flags(struct smi_info *smi_info, bool start_timer)
+static void start_clear_flags(struct smi_info *smi_info)
 {
 	unsigned char msg[3];
 
@@ -456,10 +458,7 @@ static void start_clear_flags(struct smi
 	msg[1] = IPMI_CLEAR_MSG_FLAGS_CMD;
 	msg[2] = WDT_PRE_TIMEOUT_INT;
 
-	if (start_timer)
-		start_new_msg(smi_info, msg, 3);
-	else
-		smi_info->handlers->start_transaction(smi_info->si_sm, msg, 3);
+	start_new_msg(smi_info, msg, 3);
 	smi_info->si_state = SI_CLEARING_FLAGS;
 }
 
@@ -494,11 +493,11 @@ static void start_getting_events(struct
  * Note that we cannot just use disable_irq(), since the interrupt may
  * be shared.
  */
-static inline bool disable_si_irq(struct smi_info *smi_info, bool start_timer)
+static inline bool disable_si_irq(struct smi_info *smi_info)
 {
 	if ((smi_info->irq) && (!smi_info->interrupt_disabled)) {
 		smi_info->interrupt_disabled = true;
-		start_check_enables(smi_info, start_timer);
+		start_check_enables(smi_info);
 		return true;
 	}
 	return false;
@@ -508,7 +507,7 @@ static inline bool enable_si_irq(struct
 {
 	if ((smi_info->irq) && (smi_info->interrupt_disabled)) {
 		smi_info->interrupt_disabled = false;
-		start_check_enables(smi_info, true);
+		start_check_enables(smi_info);
 		return true;
 	}
 	return false;
@@ -526,7 +525,7 @@ static struct ipmi_smi_msg *alloc_msg_ha
 
 	msg = ipmi_alloc_smi_msg();
 	if (!msg) {
-		if (!disable_si_irq(smi_info, true))
+		if (!disable_si_irq(smi_info))
 			smi_info->si_state = SI_NORMAL;
 	} else if (enable_si_irq(smi_info)) {
 		ipmi_free_smi_msg(msg);
@@ -542,7 +541,7 @@ static void handle_flags(struct smi_info
 		/* Watchdog pre-timeout */
 		smi_inc_stat(smi_info, watchdog_pretimeouts);
 
-		start_clear_flags(smi_info, true);
+		start_clear_flags(smi_info);
 		smi_info->msg_flags &= ~WDT_PRE_TIMEOUT_INT;
 		if (smi_info->intf)
 			ipmi_smi_watchdog_pretimeout(smi_info->intf);
@@ -925,7 +924,7 @@ static enum si_sm_result smi_event_handl
 		 * disable and messages disabled.
 		 */
 		if (smi_info->supports_event_msg_buff || smi_info->irq) {
-			start_check_enables(smi_info, true);
+			start_check_enables(smi_info);
 		} else {
 			smi_info->curr_msg = alloc_msg_handle_irq(smi_info);
 			if (!smi_info->curr_msg)
@@ -1232,6 +1231,7 @@ static int smi_start_processing(void
 
 	/* Set up the timer that drives the interface. */
 	setup_timer(&new_smi->si_timer, smi_timeout, (long)new_smi);
+	new_smi->timer_can_start = true;
 	smi_mod_timer(new_smi, jiffies + SI_TIMEOUT_JIFFIES);
 
 	/* Try to claim any interrupts. */
@@ -3434,10 +3434,12 @@ static void check_for_broken_irqs(struct
 	check_set_rcv_irq(smi_info);
 }
 
-static inline void wait_for_timer_and_thread(struct smi_info *smi_info)
+static inline void stop_timer_and_thread(struct smi_info *smi_info)
 {
 	if (smi_info->thread != NULL)
 		kthread_stop(smi_info->thread);
+
+	smi_info->timer_can_start = false;
 	if (smi_info->timer_running)
 		del_timer_sync(&smi_info->si_timer);
 }
@@ -3635,7 +3637,7 @@ static int try_smi_init(struct smi_info
 	 * Start clearing the flags before we enable interrupts or the
 	 * timer to avoid racing with the timer.
 	 */
-	start_clear_flags(new_smi, false);
+	start_clear_flags(new_smi);
 
 	/*
 	 * IRQ is defined to be set when non-zero.  req_events will
@@ -3713,7 +3715,7 @@ static int try_smi_init(struct smi_info
 	return 0;
 
  out_err_stop_timer:
-	wait_for_timer_and_thread(new_smi);
+	stop_timer_and_thread(new_smi);
 
  out_err:
 	new_smi->interrupt_disabled = true;
@@ -3919,7 +3921,7 @@ static void cleanup_one_si(struct smi_in
 	 */
 	if (to_clean->irq_cleanup)
 		to_clean->irq_cleanup(to_clean);
-	wait_for_timer_and_thread(to_clean);
+	stop_timer_and_thread(to_clean);
 
 	/*
 	 * Timeouts are stopped, now make sure the interrupts are off
@@ -3930,7 +3932,7 @@ static void cleanup_one_si(struct smi_in
 		poll(to_clean);
 		schedule_timeout_uninterruptible(1);
 	}
-	disable_si_irq(to_clean, false);
+	disable_si_irq(to_clean);
 	while (to_clean->curr_msg || (to_clean->si_state != SI_NORMAL)) {
 		poll(to_clean);
 		schedule_timeout_uninterruptible(1);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/char/ipmi/ipmi_ssif.c linux-libre-4.4.107-gnu/drivers/char/ipmi/ipmi_ssif.c
--- linux-libre-4.4-gnu/drivers/char/ipmi/ipmi_ssif.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/char/ipmi/ipmi_ssif.c	2017-12-20 04:05:01.000000000 -0500
@@ -758,6 +758,11 @@ static void msg_done_handler(struct ssif
 			       result, len, data[2]);
 		} else if (data[0] != (IPMI_NETFN_APP_REQUEST | 1) << 2
 			   || data[1] != IPMI_GET_MSG_FLAGS_CMD) {
+			/*
+			 * Don't abort here, maybe it was a queued
+			 * response to a previous command.
+			 */
+			ipmi_ssif_unlock_cond(ssif_info, flags);
 			pr_warn(PFX "Invalid response getting flags: %x %x\n",
 				data[0], data[1]);
 		} else {
@@ -888,6 +893,7 @@ static void msg_written_handler(struct s
 		 * for details on the intricacies of this.
 		 */
 		int left;
+		unsigned char *data_to_send;
 
 		ssif_inc_stat(ssif_info, sent_messages_parts);
 
@@ -896,6 +902,7 @@ static void msg_written_handler(struct s
 			left = 32;
 		/* Length byte. */
 		ssif_info->multi_data[ssif_info->multi_pos] = left;
+		data_to_send = ssif_info->multi_data + ssif_info->multi_pos;
 		ssif_info->multi_pos += left;
 		if (left < 32)
 			/*
@@ -909,7 +916,7 @@ static void msg_written_handler(struct s
 		rv = ssif_i2c_send(ssif_info, msg_written_handler,
 				  I2C_SMBUS_WRITE,
 				  SSIF_IPMI_MULTI_PART_REQUEST_MIDDLE,
-				  ssif_info->multi_data + ssif_info->multi_pos,
+				  data_to_send,
 				  I2C_SMBUS_BLOCK_DATA);
 		if (rv < 0) {
 			/* request failed, just return the error. */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/char/ipmi/ipmi_watchdog.c linux-libre-4.4.107-gnu/drivers/char/ipmi/ipmi_watchdog.c
--- linux-libre-4.4-gnu/drivers/char/ipmi/ipmi_watchdog.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/char/ipmi/ipmi_watchdog.c	2017-12-20 04:05:01.000000000 -0500
@@ -1162,10 +1162,11 @@ static int wdog_reboot_handler(struct no
 			ipmi_watchdog_state = WDOG_TIMEOUT_NONE;
 			ipmi_set_timeout(IPMI_SET_TIMEOUT_NO_HB);
 		} else if (ipmi_watchdog_state != WDOG_TIMEOUT_NONE) {
-			/* Set a long timer to let the reboot happens, but
-			   reboot if it hangs, but only if the watchdog
+			/* Set a long timer to let the reboot happen or
+			   reset if it hangs, but only if the watchdog
 			   timer was already running. */
-			timeout = 120;
+			if (timeout < 120)
+				timeout = 120;
 			pretimeout = 0;
 			ipmi_watchdog_state = WDOG_TIMEOUT_RESET;
 			ipmi_set_timeout(IPMI_SET_TIMEOUT_NO_HB);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/char/Kconfig linux-libre-4.4.107-gnu/drivers/char/Kconfig
--- linux-libre-4.4-gnu/drivers/char/Kconfig	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/char/Kconfig	2017-12-20 04:05:01.000000000 -0500
@@ -583,10 +583,12 @@ config TELCLOCK
 	  controlling the behavior of this hardware.
 
 config DEVPORT
-	bool
-	depends on !M68K
+	bool "/dev/port character device"
 	depends on ISA || PCI
 	default y
+	help
+	  Say Y here if you want to support the /dev/port device. The /dev/port
+	  device is similar to /dev/mem, but for I/O ports.
 
 source "drivers/s390/char/Kconfig"
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/char/lp.c linux-libre-4.4.107-gnu/drivers/char/lp.c
--- linux-libre-4.4-gnu/drivers/char/lp.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/char/lp.c	2017-12-20 04:05:01.000000000 -0500
@@ -859,7 +859,11 @@ static int __init lp_setup (char *str)
 	} else if (!strcmp(str, "auto")) {
 		parport_nr[0] = LP_PARPORT_AUTO;
 	} else if (!strcmp(str, "none")) {
-		parport_nr[parport_ptr++] = LP_PARPORT_NONE;
+		if (parport_ptr < LP_NO)
+			parport_nr[parport_ptr++] = LP_PARPORT_NONE;
+		else
+			printk(KERN_INFO "lp: too many ports, %s ignored.\n",
+			       str);
 	} else if (!strcmp(str, "reset")) {
 		reset = 1;
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/char/mem.c linux-libre-4.4.107-gnu/drivers/char/mem.c
--- linux-libre-4.4-gnu/drivers/char/mem.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/char/mem.c	2017-12-20 04:05:01.000000000 -0500
@@ -59,6 +59,10 @@ static inline int valid_mmap_phys_addr_r
 #endif
 
 #ifdef CONFIG_STRICT_DEVMEM
+static inline int page_is_allowed(unsigned long pfn)
+{
+	return devmem_is_allowed(pfn);
+}
 static inline int range_is_allowed(unsigned long pfn, unsigned long size)
 {
 	u64 from = ((u64)pfn) << PAGE_SHIFT;
@@ -78,6 +82,10 @@ static inline int range_is_allowed(unsig
 	return 1;
 }
 #else
+static inline int page_is_allowed(unsigned long pfn)
+{
+	return 1;
+}
 static inline int range_is_allowed(unsigned long pfn, unsigned long size)
 {
 	return 1;
@@ -125,23 +133,31 @@ static ssize_t read_mem(struct file *fil
 
 	while (count > 0) {
 		unsigned long remaining;
+		int allowed;
 
 		sz = size_inside_page(p, count);
 
-		if (!range_is_allowed(p >> PAGE_SHIFT, count))
+		allowed = page_is_allowed(p >> PAGE_SHIFT);
+		if (!allowed)
 			return -EPERM;
+		if (allowed == 2) {
+			/* Show zeros for restricted memory. */
+			remaining = clear_user(buf, sz);
+		} else {
+			/*
+			 * On ia64 if a page has been mapped somewhere as
+			 * uncached, then it must also be accessed uncached
+			 * by the kernel or data corruption may occur.
+			 */
+			ptr = xlate_dev_mem_ptr(p);
+			if (!ptr)
+				return -EFAULT;
 
-		/*
-		 * On ia64 if a page has been mapped somewhere as uncached, then
-		 * it must also be accessed uncached by the kernel or data
-		 * corruption may occur.
-		 */
-		ptr = xlate_dev_mem_ptr(p);
-		if (!ptr)
-			return -EFAULT;
+			remaining = copy_to_user(buf, ptr, sz);
+
+			unxlate_dev_mem_ptr(p, ptr);
+		}
 
-		remaining = copy_to_user(buf, ptr, sz);
-		unxlate_dev_mem_ptr(p, ptr);
 		if (remaining)
 			return -EFAULT;
 
@@ -184,30 +200,36 @@ static ssize_t write_mem(struct file *fi
 #endif
 
 	while (count > 0) {
+		int allowed;
+
 		sz = size_inside_page(p, count);
 
-		if (!range_is_allowed(p >> PAGE_SHIFT, sz))
+		allowed = page_is_allowed(p >> PAGE_SHIFT);
+		if (!allowed)
 			return -EPERM;
 
-		/*
-		 * On ia64 if a page has been mapped somewhere as uncached, then
-		 * it must also be accessed uncached by the kernel or data
-		 * corruption may occur.
-		 */
-		ptr = xlate_dev_mem_ptr(p);
-		if (!ptr) {
-			if (written)
-				break;
-			return -EFAULT;
-		}
+		/* Skip actual writing when a page is marked as restricted. */
+		if (allowed == 1) {
+			/*
+			 * On ia64 if a page has been mapped somewhere as
+			 * uncached, then it must also be accessed uncached
+			 * by the kernel or data corruption may occur.
+			 */
+			ptr = xlate_dev_mem_ptr(p);
+			if (!ptr) {
+				if (written)
+					break;
+				return -EFAULT;
+			}
 
-		copied = copy_from_user(ptr, buf, sz);
-		unxlate_dev_mem_ptr(p, ptr);
-		if (copied) {
-			written += sz - copied;
-			if (written)
-				break;
-			return -EFAULT;
+			copied = copy_from_user(ptr, buf, sz);
+			unxlate_dev_mem_ptr(p, ptr);
+			if (copied) {
+				written += sz - copied;
+				if (written)
+					break;
+				return -EFAULT;
+			}
 		}
 
 		buf += sz;
@@ -321,6 +343,11 @@ static const struct vm_operations_struct
 static int mmap_mem(struct file *file, struct vm_area_struct *vma)
 {
 	size_t size = vma->vm_end - vma->vm_start;
+	phys_addr_t offset = (phys_addr_t)vma->vm_pgoff << PAGE_SHIFT;
+
+	/* It's illegal to wrap around the end of the physical address space. */
+	if (offset + (phys_addr_t)size - 1 < offset)
+		return -EINVAL;
 
 	if (!valid_mmap_phys_addr_range(vma->vm_pgoff, size))
 		return -EINVAL;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/char/pcmcia/cm4040_cs.c linux-libre-4.4.107-gnu/drivers/char/pcmcia/cm4040_cs.c
--- linux-libre-4.4-gnu/drivers/char/pcmcia/cm4040_cs.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/char/pcmcia/cm4040_cs.c	2017-12-20 04:05:01.000000000 -0500
@@ -374,7 +374,7 @@ static ssize_t cm4040_write(struct file
 
 	rc = write_sync_reg(SCR_HOST_TO_READER_START, dev);
 	if (rc <= 0) {
-		DEBUGP(5, dev, "write_sync_reg c=%.2Zx\n", rc);
+		DEBUGP(5, dev, "write_sync_reg c=%.2zx\n", rc);
 		DEBUGP(2, dev, "<- cm4040_write (failed)\n");
 		if (rc == -ERESTARTSYS)
 			return rc;
@@ -387,7 +387,7 @@ static ssize_t cm4040_write(struct file
 	for (i = 0; i < bytes_to_write; i++) {
 		rc = wait_for_bulk_out_ready(dev);
 		if (rc <= 0) {
-			DEBUGP(5, dev, "wait_for_bulk_out_ready rc=%.2Zx\n",
+			DEBUGP(5, dev, "wait_for_bulk_out_ready rc=%.2zx\n",
 			       rc);
 			DEBUGP(2, dev, "<- cm4040_write (failed)\n");
 			if (rc == -ERESTARTSYS)
@@ -403,7 +403,7 @@ static ssize_t cm4040_write(struct file
 	rc = write_sync_reg(SCR_HOST_TO_READER_DONE, dev);
 
 	if (rc <= 0) {
-		DEBUGP(5, dev, "write_sync_reg c=%.2Zx\n", rc);
+		DEBUGP(5, dev, "write_sync_reg c=%.2zx\n", rc);
 		DEBUGP(2, dev, "<- cm4040_write (failed)\n");
 		if (rc == -ERESTARTSYS)
 			return rc;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/char/random.c linux-libre-4.4.107-gnu/drivers/char/random.c
--- linux-libre-4.4-gnu/drivers/char/random.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/char/random.c	2017-12-20 04:05:01.000000000 -0500
@@ -722,15 +722,18 @@ retry:
 	}
 }
 
-static void credit_entropy_bits_safe(struct entropy_store *r, int nbits)
+static int credit_entropy_bits_safe(struct entropy_store *r, int nbits)
 {
 	const int nbits_max = (int)(~0U >> (ENTROPY_SHIFT + 1));
 
+	if (nbits < 0)
+		return -EINVAL;
+
 	/* Cap the value to avoid overflows */
 	nbits = min(nbits,  nbits_max);
-	nbits = max(nbits, -nbits_max);
 
 	credit_entropy_bits(r, nbits);
+	return 0;
 }
 
 /*********************************************************************
@@ -945,6 +948,7 @@ void add_interrupt_randomness(int irq, i
 	/* award one bit for the contents of the fast pool */
 	credit_entropy_bits(r, credit + 1);
 }
+EXPORT_SYMBOL_GPL(add_interrupt_randomness);
 
 #ifdef CONFIG_BLOCK
 void add_disk_randomness(struct gendisk *disk)
@@ -1457,12 +1461,16 @@ random_read(struct file *file, char __us
 static ssize_t
 urandom_read(struct file *file, char __user *buf, size_t nbytes, loff_t *ppos)
 {
+	static int maxwarn = 10;
 	int ret;
 
-	if (unlikely(nonblocking_pool.initialized == 0))
-		printk_once(KERN_NOTICE "random: %s urandom read "
-			    "with %d bits of entropy available\n",
-			    current->comm, nonblocking_pool.entropy_total);
+	if (unlikely(nonblocking_pool.initialized == 0) &&
+	    maxwarn > 0) {
+		maxwarn--;
+		printk(KERN_NOTICE "random: %s: uninitialized urandom read "
+		       "(%zd bytes read, %d bits of entropy available)\n",
+		       current->comm, nbytes, nonblocking_pool.entropy_total);
+	}
 
 	nbytes = min_t(size_t, nbytes, INT_MAX >> (ENTROPY_SHIFT + 3));
 	ret = extract_entropy_user(&nonblocking_pool, buf, nbytes);
@@ -1542,8 +1550,7 @@ static long random_ioctl(struct file *f,
 			return -EPERM;
 		if (get_user(ent_count, p))
 			return -EFAULT;
-		credit_entropy_bits_safe(&input_pool, ent_count);
-		return 0;
+		return credit_entropy_bits_safe(&input_pool, ent_count);
 	case RNDADDENTROPY:
 		if (!capable(CAP_SYS_ADMIN))
 			return -EPERM;
@@ -1557,8 +1564,7 @@ static long random_ioctl(struct file *f,
 				    size);
 		if (retval < 0)
 			return retval;
-		credit_entropy_bits_safe(&input_pool, ent_count);
-		return 0;
+		return credit_entropy_bits_safe(&input_pool, ent_count);
 	case RNDZAPENTCNT:
 	case RNDCLEARPOOL:
 		/*
@@ -1792,13 +1798,15 @@ int random_int_secret_init(void)
 	return 0;
 }
 
+static DEFINE_PER_CPU(__u32 [MD5_DIGEST_WORDS], get_random_int_hash)
+		__aligned(sizeof(unsigned long));
+
 /*
  * Get a random word for internal kernel use only. Similar to urandom but
  * with the goal of minimal entropy pool depletion. As a result, the random
  * value is not cryptographically secure but for several uses the cost of
  * depleting entropy is too high
  */
-static DEFINE_PER_CPU(__u32 [MD5_DIGEST_WORDS], get_random_int_hash);
 unsigned int get_random_int(void)
 {
 	__u32 *hash;
@@ -1819,6 +1827,28 @@ unsigned int get_random_int(void)
 EXPORT_SYMBOL(get_random_int);
 
 /*
+ * Same as get_random_int(), but returns unsigned long.
+ */
+unsigned long get_random_long(void)
+{
+	__u32 *hash;
+	unsigned long ret;
+
+	if (arch_get_random_long(&ret))
+		return ret;
+
+	hash = get_cpu_var(get_random_int_hash);
+
+	hash[0] += current->pid + jiffies + random_get_entropy();
+	md5_transform(hash, random_int_secret);
+	ret = *(unsigned long *)hash;
+	put_cpu_var(get_random_int_hash);
+
+	return ret;
+}
+EXPORT_SYMBOL(get_random_long);
+
+/*
  * randomize_range() returns a start address such that
  *
  *    [...... <range> .....]
@@ -1846,12 +1876,18 @@ void add_hwgenerator_randomness(const ch
 {
 	struct entropy_store *poolp = &input_pool;
 
-	/* Suspend writing if we're above the trickle threshold.
-	 * We'll be woken up again once below random_write_wakeup_thresh,
-	 * or when the calling thread is about to terminate.
-	 */
-	wait_event_interruptible(random_write_wait, kthread_should_stop() ||
+	if (unlikely(nonblocking_pool.initialized == 0))
+		poolp = &nonblocking_pool;
+	else {
+		/* Suspend writing if we're above the trickle
+		 * threshold.  We'll be woken up again once below
+		 * random_write_wakeup_thresh, or when the calling
+		 * thread is about to terminate.
+		 */
+		wait_event_interruptible(random_write_wait,
+					 kthread_should_stop() ||
 			ENTROPY_BITS(&input_pool) <= random_write_wakeup_bits);
+	}
 	mix_pool_bytes(poolp, buffer, count);
 	credit_entropy_bits(poolp, entropy);
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/char/tpm/tpm2-cmd.c linux-libre-4.4.107-gnu/drivers/char/tpm/tpm2-cmd.c
--- linux-libre-4.4-gnu/drivers/char/tpm/tpm2-cmd.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/char/tpm/tpm2-cmd.c	2017-12-20 04:05:01.000000000 -0500
@@ -264,7 +264,7 @@ int tpm2_pcr_read(struct tpm_chip *chip,
 	       sizeof(cmd.params.pcrread_in.pcr_select));
 	cmd.params.pcrread_in.pcr_select[pcr_idx >> 3] = 1 << (pcr_idx & 0x7);
 
-	rc = tpm_transmit_cmd(chip, &cmd, sizeof(cmd),
+	rc = tpm_transmit_cmd(chip, &cmd, sizeof(cmd), 0,
 			      "attempting to read a pcr value");
 	if (rc == 0) {
 		buf = cmd.params.pcrread_out.digest;
@@ -312,7 +312,7 @@ int tpm2_pcr_extend(struct tpm_chip *chi
 	cmd.params.pcrextend_in.hash_alg = cpu_to_be16(TPM2_ALG_SHA1);
 	memcpy(cmd.params.pcrextend_in.digest, hash, TPM_DIGEST_SIZE);
 
-	rc = tpm_transmit_cmd(chip, &cmd, sizeof(cmd),
+	rc = tpm_transmit_cmd(chip, &cmd, sizeof(cmd), 0,
 			      "attempting extend a PCR value");
 
 	return rc;
@@ -358,7 +358,7 @@ int tpm2_get_random(struct tpm_chip *chi
 		cmd.header.in = tpm2_getrandom_header;
 		cmd.params.getrandom_in.size = cpu_to_be16(num_bytes);
 
-		err = tpm_transmit_cmd(chip, &cmd, sizeof(cmd),
+		err = tpm_transmit_cmd(chip, &cmd, sizeof(cmd), 0,
 				       "attempting get random");
 		if (err)
 			break;
@@ -416,12 +416,12 @@ static void tpm2_buf_append_auth(struct
 }
 
 /**
- * tpm2_seal_trusted() - seal a trusted key
- * @chip_num: A specific chip number for the request or TPM_ANY_NUM
- * @options: authentication values and other options
+ * tpm2_seal_trusted() - seal the payload of a trusted key
+ * @chip_num: TPM chip to use
  * @payload: the key data in clear and encrypted form
+ * @options: authentication values and other options
  *
- * Returns < 0 on error and 0 on success.
+ * Return: < 0 on error and 0 on success.
  */
 int tpm2_seal_trusted(struct tpm_chip *chip,
 		      struct trusted_key_payload *payload,
@@ -472,7 +472,7 @@ int tpm2_seal_trusted(struct tpm_chip *c
 		goto out;
 	}
 
-	rc = tpm_transmit_cmd(chip, buf.data, PAGE_SIZE, "sealing data");
+	rc = tpm_transmit_cmd(chip, buf.data, PAGE_SIZE, 0, "sealing data");
 	if (rc)
 		goto out;
 
@@ -494,10 +494,18 @@ out:
 	return rc;
 }
 
-static int tpm2_load(struct tpm_chip *chip,
-		     struct trusted_key_payload *payload,
-		     struct trusted_key_options *options,
-		     u32 *blob_handle)
+/**
+ * tpm2_load_cmd() - execute a TPM2_Load command
+ * @chip_num: TPM chip to use
+ * @payload: the key data in clear and encrypted form
+ * @options: authentication values and other options
+ *
+ * Return: same as with tpm_transmit_cmd
+ */
+static int tpm2_load_cmd(struct tpm_chip *chip,
+			 struct trusted_key_payload *payload,
+			 struct trusted_key_options *options,
+			 u32 *blob_handle, unsigned int flags)
 {
 	struct tpm_buf buf;
 	unsigned int private_len;
@@ -532,7 +540,7 @@ static int tpm2_load(struct tpm_chip *ch
 		goto out;
 	}
 
-	rc = tpm_transmit_cmd(chip, buf.data, PAGE_SIZE, "loading blob");
+	rc = tpm_transmit_cmd(chip, buf.data, PAGE_SIZE, flags, "loading blob");
 	if (!rc)
 		*blob_handle = be32_to_cpup(
 			(__be32 *) &buf.data[TPM_HEADER_SIZE]);
@@ -546,32 +554,50 @@ out:
 	return rc;
 }
 
-static void tpm2_flush_context(struct tpm_chip *chip, u32 handle)
+/**
+ * tpm2_flush_context_cmd() - execute a TPM2_FlushContext command
+ * @chip_num: TPM chip to use
+ * @payload: the key data in clear and encrypted form
+ * @options: authentication values and other options
+ *
+ * Return: same as with tpm_transmit_cmd
+ */
+static void tpm2_flush_context_cmd(struct tpm_chip *chip, u32 handle,
+				   unsigned int flags)
 {
 	struct tpm_buf buf;
 	int rc;
 
 	rc = tpm_buf_init(&buf, TPM2_ST_NO_SESSIONS, TPM2_CC_FLUSH_CONTEXT);
 	if (rc) {
-		dev_warn(chip->pdev, "0x%08x was not flushed, out of memory\n",
+		dev_warn(&chip->dev, "0x%08x was not flushed, out of memory\n",
 			 handle);
 		return;
 	}
 
 	tpm_buf_append_u32(&buf, handle);
 
-	rc = tpm_transmit_cmd(chip, buf.data, PAGE_SIZE, "flushing context");
+	rc = tpm_transmit_cmd(chip, buf.data, PAGE_SIZE, flags,
+			      "flushing context");
 	if (rc)
-		dev_warn(chip->pdev, "0x%08x was not flushed, rc=%d\n", handle,
+		dev_warn(&chip->dev, "0x%08x was not flushed, rc=%d\n", handle,
 			 rc);
 
 	tpm_buf_destroy(&buf);
 }
 
-static int tpm2_unseal(struct tpm_chip *chip,
-		       struct trusted_key_payload *payload,
-		       struct trusted_key_options *options,
-		       u32 blob_handle)
+/**
+ * tpm2_unseal_cmd() - execute a TPM2_Unload command
+ * @chip_num: TPM chip to use
+ * @payload: the key data in clear and encrypted form
+ * @options: authentication values and other options
+ *
+ * Return: same as with tpm_transmit_cmd
+ */
+static int tpm2_unseal_cmd(struct tpm_chip *chip,
+			   struct trusted_key_payload *payload,
+			   struct trusted_key_options *options,
+			   u32 blob_handle, unsigned int flags)
 {
 	struct tpm_buf buf;
 	u16 data_len;
@@ -589,7 +615,7 @@ static int tpm2_unseal(struct tpm_chip *
 			     options->blobauth /* hmac */,
 			     TPM_DIGEST_SIZE);
 
-	rc = tpm_transmit_cmd(chip, buf.data, PAGE_SIZE, "unsealing");
+	rc = tpm_transmit_cmd(chip, buf.data, PAGE_SIZE, flags, "unsealing");
 	if (rc > 0)
 		rc = -EPERM;
 
@@ -608,12 +634,12 @@ static int tpm2_unseal(struct tpm_chip *
 }
 
 /**
- * tpm_unseal_trusted() - unseal a trusted key
- * @chip_num: A specific chip number for the request or TPM_ANY_NUM
- * @options: authentication values and other options
+ * tpm_unseal_trusted() - unseal the payload of a trusted key
+ * @chip_num: TPM chip to use
  * @payload: the key data in clear and encrypted form
+ * @options: authentication values and other options
  *
- * Returns < 0 on error and 0 on success.
+ * Return: < 0 on error and 0 on success.
  */
 int tpm2_unseal_trusted(struct tpm_chip *chip,
 			struct trusted_key_payload *payload,
@@ -622,14 +648,17 @@ int tpm2_unseal_trusted(struct tpm_chip
 	u32 blob_handle;
 	int rc;
 
-	rc = tpm2_load(chip, payload, options, &blob_handle);
+	mutex_lock(&chip->tpm_mutex);
+	rc = tpm2_load_cmd(chip, payload, options, &blob_handle,
+			   TPM_TRANSMIT_UNLOCKED);
 	if (rc)
-		return rc;
-
-	rc = tpm2_unseal(chip, payload, options, blob_handle);
-
-	tpm2_flush_context(chip, blob_handle);
+		goto out;
 
+	rc = tpm2_unseal_cmd(chip, payload, options, blob_handle,
+			     TPM_TRANSMIT_UNLOCKED);
+	tpm2_flush_context_cmd(chip, blob_handle, TPM_TRANSMIT_UNLOCKED);
+out:
+	mutex_unlock(&chip->tpm_mutex);
 	return rc;
 }
 
@@ -655,9 +684,9 @@ ssize_t tpm2_get_tpm_pt(struct tpm_chip
 	cmd.params.get_tpm_pt_in.property_id = cpu_to_be32(property_id);
 	cmd.params.get_tpm_pt_in.property_cnt = cpu_to_be32(1);
 
-	rc = tpm_transmit_cmd(chip, &cmd, sizeof(cmd), desc);
+	rc = tpm_transmit_cmd(chip, &cmd, sizeof(cmd), 0, desc);
 	if (!rc)
-		*value = cmd.params.get_tpm_pt_out.value;
+		*value = be32_to_cpu(cmd.params.get_tpm_pt_out.value);
 
 	return rc;
 }
@@ -689,7 +718,7 @@ int tpm2_startup(struct tpm_chip *chip,
 	cmd.header.in = tpm2_startup_header;
 
 	cmd.params.startup_in.startup_type = cpu_to_be16(startup_type);
-	return tpm_transmit_cmd(chip, &cmd, sizeof(cmd),
+	return tpm_transmit_cmd(chip, &cmd, sizeof(cmd), 0,
 				"attempting to start the TPM");
 }
 EXPORT_SYMBOL_GPL(tpm2_startup);
@@ -718,13 +747,13 @@ void tpm2_shutdown(struct tpm_chip *chip
 	cmd.header.in = tpm2_shutdown_header;
 	cmd.params.startup_in.startup_type = cpu_to_be16(shutdown_type);
 
-	rc = tpm_transmit_cmd(chip, &cmd, sizeof(cmd), "stopping the TPM");
+	rc = tpm_transmit_cmd(chip, &cmd, sizeof(cmd), 0, "stopping the TPM");
 
 	/* In places where shutdown command is sent there's no much we can do
 	 * except print the error code on a system failure.
 	 */
 	if (rc < 0)
-		dev_warn(chip->pdev, "transmit returned %d while stopping the TPM",
+		dev_warn(&chip->dev, "transmit returned %d while stopping the TPM",
 			 rc);
 }
 EXPORT_SYMBOL_GPL(tpm2_shutdown);
@@ -784,14 +813,14 @@ static int tpm2_start_selftest(struct tp
 	cmd.header.in = tpm2_selftest_header;
 	cmd.params.selftest_in.full_test = full;
 
-	rc = tpm_transmit_cmd(chip, &cmd, TPM2_SELF_TEST_IN_SIZE,
+	rc = tpm_transmit_cmd(chip, &cmd, TPM2_SELF_TEST_IN_SIZE, 0,
 			      "continue selftest");
 
 	/* At least some prototype chips seem to give RC_TESTING error
 	 * immediately. This is a workaround for that.
 	 */
 	if (rc == TPM2_RC_TESTING) {
-		dev_warn(chip->pdev, "Got RC_TESTING, ignoring\n");
+		dev_warn(&chip->dev, "Got RC_TESTING, ignoring\n");
 		rc = 0;
 	}
 
@@ -836,7 +865,7 @@ int tpm2_do_selftest(struct tpm_chip *ch
 		cmd.params.pcrread_in.pcr_select[1] = 0x00;
 		cmd.params.pcrread_in.pcr_select[2] = 0x00;
 
-		rc = tpm_transmit_cmd(chip, (u8 *) &cmd, sizeof(cmd), NULL);
+		rc = tpm_transmit_cmd(chip, &cmd, sizeof(cmd), 0, NULL);
 		if (rc < 0)
 			break;
 
@@ -885,7 +914,7 @@ int tpm2_probe(struct tpm_chip *chip)
 	cmd.params.get_tpm_pt_in.property_id = cpu_to_be32(0x100);
 	cmd.params.get_tpm_pt_in.property_cnt = cpu_to_be32(1);
 
-	rc = tpm_transmit(chip, (const char *) &cmd, sizeof(cmd));
+	rc = tpm_transmit(chip, (const u8 *)&cmd, sizeof(cmd), 0);
 	if (rc <  0)
 		return rc;
 	else if (rc < TPM_HEADER_SIZE)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/char/tpm/tpm_atmel.c linux-libre-4.4.107-gnu/drivers/char/tpm/tpm_atmel.c
--- linux-libre-4.4-gnu/drivers/char/tpm/tpm_atmel.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/char/tpm/tpm_atmel.c	2017-12-20 04:05:01.000000000 -0500
@@ -49,7 +49,7 @@ static int tpm_atml_recv(struct tpm_chip
 	for (i = 0; i < 6; i++) {
 		status = ioread8(chip->vendor.iobase + 1);
 		if ((status & ATML_STATUS_DATA_AVAIL) == 0) {
-			dev_err(chip->pdev, "error reading header\n");
+			dev_err(&chip->dev, "error reading header\n");
 			return -EIO;
 		}
 		*buf++ = ioread8(chip->vendor.iobase);
@@ -60,12 +60,12 @@ static int tpm_atml_recv(struct tpm_chip
 	size = be32_to_cpu(*native_size);
 
 	if (count < size) {
-		dev_err(chip->pdev,
+		dev_err(&chip->dev,
 			"Recv size(%d) less than available space\n", size);
 		for (; i < size; i++) {	/* clear the waiting data anyway */
 			status = ioread8(chip->vendor.iobase + 1);
 			if ((status & ATML_STATUS_DATA_AVAIL) == 0) {
-				dev_err(chip->pdev, "error reading data\n");
+				dev_err(&chip->dev, "error reading data\n");
 				return -EIO;
 			}
 		}
@@ -76,7 +76,7 @@ static int tpm_atml_recv(struct tpm_chip
 	for (; i < size; i++) {
 		status = ioread8(chip->vendor.iobase + 1);
 		if ((status & ATML_STATUS_DATA_AVAIL) == 0) {
-			dev_err(chip->pdev, "error reading data\n");
+			dev_err(&chip->dev, "error reading data\n");
 			return -EIO;
 		}
 		*buf++ = ioread8(chip->vendor.iobase);
@@ -86,7 +86,7 @@ static int tpm_atml_recv(struct tpm_chip
 	status = ioread8(chip->vendor.iobase + 1);
 
 	if (status & ATML_STATUS_DATA_AVAIL) {
-		dev_err(chip->pdev, "data available is stuck\n");
+		dev_err(&chip->dev, "data available is stuck\n");
 		return -EIO;
 	}
 
@@ -97,9 +97,9 @@ static int tpm_atml_send(struct tpm_chip
 {
 	int i;
 
-	dev_dbg(chip->pdev, "tpm_atml_send:\n");
+	dev_dbg(&chip->dev, "tpm_atml_send:\n");
 	for (i = 0; i < count; i++) {
-		dev_dbg(chip->pdev, "%d 0x%x(%d)\n",  i, buf[i], buf[i]);
+		dev_dbg(&chip->dev, "%d 0x%x(%d)\n",  i, buf[i], buf[i]);
  		iowrite8(buf[i], chip->vendor.iobase);
 	}
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/char/tpm/tpm-chip.c linux-libre-4.4.107-gnu/drivers/char/tpm/tpm-chip.c
--- linux-libre-4.4-gnu/drivers/char/tpm/tpm-chip.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/char/tpm/tpm-chip.c	2017-12-20 04:05:01.000000000 -0500
@@ -29,33 +29,92 @@
 #include "tpm.h"
 #include "tpm_eventlog.h"
 
-static DECLARE_BITMAP(dev_mask, TPM_NUM_DEVICES);
-static LIST_HEAD(tpm_chip_list);
-static DEFINE_SPINLOCK(driver_lock);
+DEFINE_IDR(dev_nums_idr);
+static DEFINE_MUTEX(idr_lock);
 
 struct class *tpm_class;
 dev_t tpm_devt;
 
-/*
- * tpm_chip_find_get - return tpm_chip for a given chip number
- * @chip_num the device number for the chip
+/**
+ * tpm_try_get_ops() - Get a ref to the tpm_chip
+ * @chip: Chip to ref
+ *
+ * The caller must already have some kind of locking to ensure that chip is
+ * valid. This function will lock the chip so that the ops member can be
+ * accessed safely. The locking prevents tpm_chip_unregister from
+ * completing, so it should not be held for long periods.
+ *
+ * Returns -ERRNO if the chip could not be got.
+ */
+int tpm_try_get_ops(struct tpm_chip *chip)
+{
+	int rc = -EIO;
+
+	get_device(&chip->dev);
+
+	down_read(&chip->ops_sem);
+	if (!chip->ops)
+		goto out_lock;
+
+	if (!try_module_get(chip->dev.parent->driver->owner))
+		goto out_lock;
+
+	return 0;
+out_lock:
+	up_read(&chip->ops_sem);
+	put_device(&chip->dev);
+	return rc;
+}
+EXPORT_SYMBOL_GPL(tpm_try_get_ops);
+
+/**
+ * tpm_put_ops() - Release a ref to the tpm_chip
+ * @chip: Chip to put
+ *
+ * This is the opposite pair to tpm_try_get_ops(). After this returns chip may
+ * be kfree'd.
  */
+void tpm_put_ops(struct tpm_chip *chip)
+{
+	module_put(chip->dev.parent->driver->owner);
+	up_read(&chip->ops_sem);
+	put_device(&chip->dev);
+}
+EXPORT_SYMBOL_GPL(tpm_put_ops);
+
+/**
+ * tpm_chip_find_get() - return tpm_chip for a given chip number
+ * @chip_num: id to find
+ *
+ * The return'd chip has been tpm_try_get_ops'd and must be released via
+ * tpm_put_ops
+  */
 struct tpm_chip *tpm_chip_find_get(int chip_num)
 {
-	struct tpm_chip *pos, *chip = NULL;
+	struct tpm_chip *chip, *res = NULL;
+	int chip_prev;
 
-	rcu_read_lock();
-	list_for_each_entry_rcu(pos, &tpm_chip_list, list) {
-		if (chip_num != TPM_ANY_NUM && chip_num != pos->dev_num)
-			continue;
+	mutex_lock(&idr_lock);
 
-		if (try_module_get(pos->pdev->driver->owner)) {
-			chip = pos;
-			break;
-		}
+	if (chip_num == TPM_ANY_NUM) {
+		chip_num = 0;
+		do {
+			chip_prev = chip_num;
+			chip = idr_get_next(&dev_nums_idr, &chip_num);
+			if (chip && !tpm_try_get_ops(chip)) {
+				res = chip;
+				break;
+			}
+		} while (chip_prev != chip_num);
+	} else {
+		chip = idr_find_slowpath(&dev_nums_idr, chip_num);
+		if (chip && !tpm_try_get_ops(chip))
+			res = chip;
 	}
-	rcu_read_unlock();
-	return chip;
+
+	mutex_unlock(&idr_lock);
+
+	return res;
 }
 
 /**
@@ -68,12 +127,48 @@ static void tpm_dev_release(struct devic
 {
 	struct tpm_chip *chip = container_of(dev, struct tpm_chip, dev);
 
-	spin_lock(&driver_lock);
-	clear_bit(chip->dev_num, dev_mask);
-	spin_unlock(&driver_lock);
+	mutex_lock(&idr_lock);
+	idr_remove(&dev_nums_idr, chip->dev_num);
+	mutex_unlock(&idr_lock);
+
 	kfree(chip);
 }
 
+
+/**
+ * tpm_class_shutdown() - prepare the TPM device for loss of power.
+ * @dev: device to which the chip is associated.
+ *
+ * Issues a TPM2_Shutdown command prior to loss of power, as required by the
+ * TPM 2.0 spec.
+ * Then, calls bus- and device- specific shutdown code.
+ *
+ * XXX: This codepath relies on the fact that sysfs is not enabled for
+ * TPM2: sysfs uses an implicit lock on chip->ops, so this could race if TPM2
+ * has sysfs support enabled before TPM sysfs's implicit locking is fixed.
+ */
+static int tpm_class_shutdown(struct device *dev)
+{
+	struct tpm_chip *chip = container_of(dev, struct tpm_chip, dev);
+
+	if (chip->flags & TPM_CHIP_FLAG_TPM2) {
+		down_write(&chip->ops_sem);
+		tpm2_shutdown(chip, TPM2_SU_CLEAR);
+		chip->ops = NULL;
+		up_write(&chip->ops_sem);
+	}
+	/* Allow bus- and device-specific code to run. Note: since chip->ops
+	 * is NULL, more-specific shutdown code will not be able to issue TPM
+	 * commands.
+	 */
+	if (dev->bus && dev->bus->shutdown)
+		dev->bus->shutdown(dev);
+	else if (dev->driver && dev->driver->shutdown)
+		dev->driver->shutdown(dev);
+	return 0;
+}
+
+
 /**
  * tpmm_chip_alloc() - allocate a new struct tpm_chip instance
  * @dev: device to which the chip is associated
@@ -88,37 +183,35 @@ struct tpm_chip *tpmm_chip_alloc(struct
 				 const struct tpm_class_ops *ops)
 {
 	struct tpm_chip *chip;
+	int rc;
 
 	chip = kzalloc(sizeof(*chip), GFP_KERNEL);
 	if (chip == NULL)
 		return ERR_PTR(-ENOMEM);
 
 	mutex_init(&chip->tpm_mutex);
-	INIT_LIST_HEAD(&chip->list);
+	init_rwsem(&chip->ops_sem);
 
 	chip->ops = ops;
 
-	spin_lock(&driver_lock);
-	chip->dev_num = find_first_zero_bit(dev_mask, TPM_NUM_DEVICES);
-	spin_unlock(&driver_lock);
-
-	if (chip->dev_num >= TPM_NUM_DEVICES) {
+	mutex_lock(&idr_lock);
+	rc = idr_alloc(&dev_nums_idr, NULL, 0, TPM_NUM_DEVICES, GFP_KERNEL);
+	mutex_unlock(&idr_lock);
+	if (rc < 0) {
 		dev_err(dev, "No available tpm device numbers\n");
 		kfree(chip);
-		return ERR_PTR(-ENOMEM);
+		return ERR_PTR(rc);
 	}
-
-	set_bit(chip->dev_num, dev_mask);
+	chip->dev_num = rc;
 
 	scnprintf(chip->devname, sizeof(chip->devname), "tpm%d", chip->dev_num);
 
-	chip->pdev = dev;
-
 	dev_set_drvdata(dev, chip);
 
 	chip->dev.class = tpm_class;
+	chip->dev.class->shutdown = tpm_class_shutdown;
 	chip->dev.release = tpm_dev_release;
-	chip->dev.parent = chip->pdev;
+	chip->dev.parent = dev;
 #ifdef CONFIG_ACPI
 	chip->dev.groups = chip->groups;
 #endif
@@ -133,14 +226,16 @@ struct tpm_chip *tpmm_chip_alloc(struct
 	device_initialize(&chip->dev);
 
 	cdev_init(&chip->cdev, &tpm_fops);
-	chip->cdev.owner = chip->pdev->driver->owner;
+	chip->cdev.owner = dev->driver->owner;
 	chip->cdev.kobj.parent = &chip->dev.kobj;
 
+	devm_add_action(dev, (void (*)(void *)) put_device, &chip->dev);
+
 	return chip;
 }
 EXPORT_SYMBOL_GPL(tpmm_chip_alloc);
 
-static int tpm_dev_add_device(struct tpm_chip *chip)
+static int tpm_add_char_device(struct tpm_chip *chip)
 {
 	int rc;
 
@@ -151,7 +246,6 @@ static int tpm_dev_add_device(struct tpm
 			chip->devname, MAJOR(chip->dev.devt),
 			MINOR(chip->dev.devt), rc);
 
-		device_unregister(&chip->dev);
 		return rc;
 	}
 
@@ -162,16 +256,32 @@ static int tpm_dev_add_device(struct tpm
 			chip->devname, MAJOR(chip->dev.devt),
 			MINOR(chip->dev.devt), rc);
 
+		cdev_del(&chip->cdev);
 		return rc;
 	}
 
+	/* Make the chip available. */
+	mutex_lock(&idr_lock);
+	idr_replace(&dev_nums_idr, chip, chip->dev_num);
+	mutex_unlock(&idr_lock);
+
 	return rc;
 }
 
-static void tpm_dev_del_device(struct tpm_chip *chip)
+static void tpm_del_char_device(struct tpm_chip *chip)
 {
 	cdev_del(&chip->cdev);
-	device_unregister(&chip->dev);
+	device_del(&chip->dev);
+
+	/* Make the chip unavailable. */
+	mutex_lock(&idr_lock);
+	idr_replace(&dev_nums_idr, NULL, chip->dev_num);
+	mutex_unlock(&idr_lock);
+
+	/* Make the driver uncallable. */
+	down_write(&chip->ops_sem);
+	chip->ops = NULL;
+	up_write(&chip->ops_sem);
 }
 
 static int tpm1_chip_register(struct tpm_chip *chip)
@@ -222,21 +332,15 @@ int tpm_chip_register(struct tpm_chip *c
 
 	tpm_add_ppi(chip);
 
-	rc = tpm_dev_add_device(chip);
+	rc = tpm_add_char_device(chip);
 	if (rc)
 		goto out_err;
 
-	/* Make the chip available. */
-	spin_lock(&driver_lock);
-	list_add_tail_rcu(&chip->list, &tpm_chip_list);
-	spin_unlock(&driver_lock);
-
 	chip->flags |= TPM_CHIP_FLAG_REGISTERED;
 
 	if (!(chip->flags & TPM_CHIP_FLAG_TPM2)) {
-		rc = __compat_only_sysfs_link_entry_to_kobj(&chip->pdev->kobj,
-							    &chip->dev.kobj,
-							    "ppi");
+		rc = __compat_only_sysfs_link_entry_to_kobj(
+		    &chip->dev.parent->kobj, &chip->dev.kobj, "ppi");
 		if (rc && rc != -ENOENT) {
 			tpm_chip_unregister(chip);
 			return rc;
@@ -257,6 +361,9 @@ EXPORT_SYMBOL_GPL(tpm_chip_register);
  * Takes the chip first away from the list of available TPM chips and then
  * cleans up all the resources reserved by tpm_chip_register().
  *
+ * Once this function returns the driver call backs in 'op's will not be
+ * running and will no longer start.
+ *
  * NOTE: This function should be only called before deinitializing chip
  * resources.
  */
@@ -265,15 +372,10 @@ void tpm_chip_unregister(struct tpm_chip
 	if (!(chip->flags & TPM_CHIP_FLAG_REGISTERED))
 		return;
 
-	spin_lock(&driver_lock);
-	list_del_rcu(&chip->list);
-	spin_unlock(&driver_lock);
-	synchronize_rcu();
-
 	if (!(chip->flags & TPM_CHIP_FLAG_TPM2))
-		sysfs_remove_link(&chip->pdev->kobj, "ppi");
+		sysfs_remove_link(&chip->dev.parent->kobj, "ppi");
 
 	tpm1_chip_unregister(chip);
-	tpm_dev_del_device(chip);
+	tpm_del_char_device(chip);
 }
 EXPORT_SYMBOL_GPL(tpm_chip_unregister);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/char/tpm/tpm_crb.c linux-libre-4.4.107-gnu/drivers/char/tpm/tpm_crb.c
--- linux-libre-4.4-gnu/drivers/char/tpm/tpm_crb.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/char/tpm/tpm_crb.c	2017-12-20 04:05:01.000000000 -0500
@@ -118,8 +118,7 @@ static int crb_recv(struct tpm_chip *chi
 
 	memcpy_fromio(buf, priv->rsp, 6);
 	expected = be32_to_cpup((__be32 *) &buf[2]);
-
-	if (expected > count)
+	if (expected > count || expected < 6)
 		return -EIO;
 
 	memcpy_fromio(&buf[6], &priv->rsp[6], expected - 6);
@@ -149,6 +148,11 @@ static int crb_send(struct tpm_chip *chi
 	struct crb_priv *priv = chip->vendor.priv;
 	int rc = 0;
 
+	/* Zero the cancel register so that the next command will not get
+	 * canceled.
+	 */
+	iowrite32(0, &priv->cca->cancel);
+
 	if (len > le32_to_cpu(ioread32(&priv->cca->cmd_size))) {
 		dev_err(&chip->dev,
 			"invalid command count value %x %zx\n",
@@ -182,8 +186,6 @@ static void crb_cancel(struct tpm_chip *
 
 	if ((priv->flags & CRB_FL_ACPI_START) && crb_do_acpi_start(chip))
 		dev_err(&chip->dev, "ACPI Start failed\n");
-
-	iowrite32(0, &priv->cca->cancel);
 }
 
 static bool crb_req_canceled(struct tpm_chip *chip, u8 status)
@@ -310,11 +312,11 @@ static int crb_acpi_remove(struct acpi_d
 	struct device *dev = &device->dev;
 	struct tpm_chip *chip = dev_get_drvdata(dev);
 
-	tpm_chip_unregister(chip);
-
 	if (chip->flags & TPM_CHIP_FLAG_TPM2)
 		tpm2_shutdown(chip, TPM2_SU_CLEAR);
 
+	tpm_chip_unregister(chip);
+
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/char/tpm/tpm-dev.c linux-libre-4.4.107-gnu/drivers/char/tpm/tpm-dev.c
--- linux-libre-4.4-gnu/drivers/char/tpm/tpm-dev.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/char/tpm/tpm-dev.c	2017-12-20 04:05:01.000000000 -0500
@@ -61,7 +61,7 @@ static int tpm_open(struct inode *inode,
 	 * by the check of is_open variable, which is protected
 	 * by driver_lock. */
 	if (test_and_set_bit(0, &chip->is_open)) {
-		dev_dbg(chip->pdev, "Another process owns this TPM\n");
+		dev_dbg(&chip->dev, "Another process owns this TPM\n");
 		return -EBUSY;
 	}
 
@@ -79,7 +79,6 @@ static int tpm_open(struct inode *inode,
 	INIT_WORK(&priv->work, timeout_work);
 
 	file->private_data = priv;
-	get_device(chip->pdev);
 	return 0;
 }
 
@@ -137,9 +136,18 @@ static ssize_t tpm_write(struct file *fi
 		return -EFAULT;
 	}
 
-	/* atomic tpm command send and result receive */
+	/* atomic tpm command send and result receive. We only hold the ops
+	 * lock during this period so that the tpm can be unregistered even if
+	 * the char dev is held open.
+	 */
+	if (tpm_try_get_ops(priv->chip)) {
+		mutex_unlock(&priv->buffer_mutex);
+		return -EPIPE;
+	}
 	out_size = tpm_transmit(priv->chip, priv->data_buffer,
-				sizeof(priv->data_buffer));
+				sizeof(priv->data_buffer), 0);
+
+	tpm_put_ops(priv->chip);
 	if (out_size < 0) {
 		mutex_unlock(&priv->buffer_mutex);
 		return out_size;
@@ -166,7 +174,6 @@ static int tpm_release(struct inode *ino
 	file->private_data = NULL;
 	atomic_set(&priv->data_pending, 0);
 	clear_bit(0, &priv->chip->is_open);
-	put_device(priv->chip->pdev);
 	kfree(priv);
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/char/tpm/tpm_eventlog.c linux-libre-4.4.107-gnu/drivers/char/tpm/tpm_eventlog.c
--- linux-libre-4.4-gnu/drivers/char/tpm/tpm_eventlog.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/char/tpm/tpm_eventlog.c	2017-12-20 04:05:01.000000000 -0500
@@ -232,7 +232,7 @@ static int tpm_binary_bios_measurements_
 {
 	struct tcpa_event *event = v;
 	struct tcpa_event temp_event;
-	char *tempPtr;
+	char *temp_ptr;
 	int i;
 
 	memcpy(&temp_event, event, sizeof(struct tcpa_event));
@@ -242,10 +242,16 @@ static int tpm_binary_bios_measurements_
 	temp_event.event_type = do_endian_conversion(event->event_type);
 	temp_event.event_size = do_endian_conversion(event->event_size);
 
-	tempPtr = (char *)&temp_event;
+	temp_ptr = (char *) &temp_event;
 
-	for (i = 0; i < sizeof(struct tcpa_event) + temp_event.event_size; i++)
-		seq_putc(m, tempPtr[i]);
+	for (i = 0; i < (sizeof(struct tcpa_event) - 1) ; i++)
+		seq_putc(m, temp_ptr[i]);
+
+	temp_ptr = (char *) v;
+
+	for (i = (sizeof(struct tcpa_event) - 1);
+	     i < (sizeof(struct tcpa_event) + temp_event.event_size); i++)
+		seq_putc(m, temp_ptr[i]);
 
 	return 0;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/char/tpm/tpm.h linux-libre-4.4.107-gnu/drivers/char/tpm/tpm.h
--- linux-libre-4.4-gnu/drivers/char/tpm/tpm.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/char/tpm/tpm.h	2017-12-20 04:05:01.000000000 -0500
@@ -34,7 +34,7 @@
 enum tpm_const {
 	TPM_MINOR = 224,	/* officially assigned */
 	TPM_BUFSIZE = 4096,
-	TPM_NUM_DEVICES = 256,
+	TPM_NUM_DEVICES = 65536,
 	TPM_RETRY = 50,		/* 5 seconds */
 };
 
@@ -171,11 +171,16 @@ enum tpm_chip_flags {
 };
 
 struct tpm_chip {
-	struct device *pdev;	/* Device stuff */
 	struct device dev;
 	struct cdev cdev;
 
+	/* A driver callback under ops cannot be run unless ops_sem is held
+	 * (sometimes implicitly, eg for the sysfs code). ops becomes null
+	 * when the driver is unregistered, see tpm_try_get_ops.
+	 */
+	struct rw_semaphore ops_sem;
 	const struct tpm_class_ops *ops;
+
 	unsigned int flags;
 
 	int dev_num;		/* /dev/tpm# */
@@ -195,17 +200,10 @@ struct tpm_chip {
 	acpi_handle acpi_dev_handle;
 	char ppi_version[TPM_PPI_VERSION_LEN + 1];
 #endif /* CONFIG_ACPI */
-
-	struct list_head list;
 };
 
 #define to_tpm_chip(d) container_of(d, struct tpm_chip, dev)
 
-static inline void tpm_chip_put(struct tpm_chip *chip)
-{
-	module_put(chip->pdev->driver->owner);
-}
-
 static inline int tpm_read_index(int base, int index)
 {
 	outb(index, base);
@@ -497,12 +495,17 @@ static inline void tpm_buf_append_u32(st
 extern struct class *tpm_class;
 extern dev_t tpm_devt;
 extern const struct file_operations tpm_fops;
+extern struct idr dev_nums_idr;
+
+enum tpm_transmit_flags {
+	TPM_TRANSMIT_UNLOCKED	= BIT(0),
+};
 
+ssize_t tpm_transmit(struct tpm_chip *chip, const u8 *buf, size_t bufsiz,
+		     unsigned int flags);
+ssize_t tpm_transmit_cmd(struct tpm_chip *chip, const void *cmd, int len,
+			 unsigned int flags, const char *desc);
 ssize_t	tpm_getcap(struct device *, __be32, cap_t *, const char *);
-ssize_t tpm_transmit(struct tpm_chip *chip, const char *buf,
-		     size_t bufsiz);
-ssize_t tpm_transmit_cmd(struct tpm_chip *chip, void *cmd, int len,
-			 const char *desc);
 extern int tpm_get_timeouts(struct tpm_chip *);
 extern void tpm_gen_interrupt(struct tpm_chip *);
 extern int tpm_do_selftest(struct tpm_chip *);
@@ -513,6 +516,9 @@ extern int wait_for_tpm_stat(struct tpm_
 			     wait_queue_head_t *, bool);
 
 struct tpm_chip *tpm_chip_find_get(int chip_num);
+__must_check int tpm_try_get_ops(struct tpm_chip *chip);
+void tpm_put_ops(struct tpm_chip *chip);
+
 extern struct tpm_chip *tpmm_chip_alloc(struct device *dev,
 				       const struct tpm_class_ops *ops);
 extern int tpm_chip_register(struct tpm_chip *chip);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/char/tpm/tpm_i2c_atmel.c linux-libre-4.4.107-gnu/drivers/char/tpm/tpm_i2c_atmel.c
--- linux-libre-4.4-gnu/drivers/char/tpm/tpm_i2c_atmel.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/char/tpm/tpm_i2c_atmel.c	2017-12-20 04:05:01.000000000 -0500
@@ -52,7 +52,7 @@ struct priv_data {
 static int i2c_atmel_send(struct tpm_chip *chip, u8 *buf, size_t len)
 {
 	struct priv_data *priv = chip->vendor.priv;
-	struct i2c_client *client = to_i2c_client(chip->pdev);
+	struct i2c_client *client = to_i2c_client(chip->dev.parent);
 	s32 status;
 
 	priv->len = 0;
@@ -62,7 +62,7 @@ static int i2c_atmel_send(struct tpm_chi
 
 	status = i2c_master_send(client, buf, len);
 
-	dev_dbg(chip->pdev,
+	dev_dbg(&chip->dev,
 		"%s(buf=%*ph len=%0zx) -> sts=%d\n", __func__,
 		(int)min_t(size_t, 64, len), buf, len, status);
 	return status;
@@ -71,7 +71,7 @@ static int i2c_atmel_send(struct tpm_chi
 static int i2c_atmel_recv(struct tpm_chip *chip, u8 *buf, size_t count)
 {
 	struct priv_data *priv = chip->vendor.priv;
-	struct i2c_client *client = to_i2c_client(chip->pdev);
+	struct i2c_client *client = to_i2c_client(chip->dev.parent);
 	struct tpm_output_header *hdr =
 		(struct tpm_output_header *)priv->buffer;
 	u32 expected_len;
@@ -88,7 +88,7 @@ static int i2c_atmel_recv(struct tpm_chi
 		return -ENOMEM;
 
 	if (priv->len >= expected_len) {
-		dev_dbg(chip->pdev,
+		dev_dbg(&chip->dev,
 			"%s early(buf=%*ph count=%0zx) -> ret=%d\n", __func__,
 			(int)min_t(size_t, 64, expected_len), buf, count,
 			expected_len);
@@ -97,7 +97,7 @@ static int i2c_atmel_recv(struct tpm_chi
 	}
 
 	rc = i2c_master_recv(client, buf, expected_len);
-	dev_dbg(chip->pdev,
+	dev_dbg(&chip->dev,
 		"%s reread(buf=%*ph count=%0zx) -> ret=%d\n", __func__,
 		(int)min_t(size_t, 64, expected_len), buf, count,
 		expected_len);
@@ -106,13 +106,13 @@ static int i2c_atmel_recv(struct tpm_chi
 
 static void i2c_atmel_cancel(struct tpm_chip *chip)
 {
-	dev_err(chip->pdev, "TPM operation cancellation was requested, but is not supported");
+	dev_err(&chip->dev, "TPM operation cancellation was requested, but is not supported");
 }
 
 static u8 i2c_atmel_read_status(struct tpm_chip *chip)
 {
 	struct priv_data *priv = chip->vendor.priv;
-	struct i2c_client *client = to_i2c_client(chip->pdev);
+	struct i2c_client *client = to_i2c_client(chip->dev.parent);
 	int rc;
 
 	/* The TPM fails the I2C read until it is ready, so we do the entire
@@ -125,7 +125,7 @@ static u8 i2c_atmel_read_status(struct t
 	/* Once the TPM has completed the command the command remains readable
 	 * until another command is issued. */
 	rc = i2c_master_recv(client, priv->buffer, sizeof(priv->buffer));
-	dev_dbg(chip->pdev,
+	dev_dbg(&chip->dev,
 		"%s: sts=%d", __func__, rc);
 	if (rc <= 0)
 		return 0;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/char/tpm/tpm_i2c_infineon.c linux-libre-4.4.107-gnu/drivers/char/tpm/tpm_i2c_infineon.c
--- linux-libre-4.4-gnu/drivers/char/tpm/tpm_i2c_infineon.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/char/tpm/tpm_i2c_infineon.c	2017-12-20 04:05:01.000000000 -0500
@@ -446,7 +446,7 @@ static int tpm_tis_i2c_recv(struct tpm_c
 	/* read first 10 bytes, including tag, paramsize, and result */
 	size = recv_data(chip, buf, TPM_HEADER_SIZE);
 	if (size < TPM_HEADER_SIZE) {
-		dev_err(chip->pdev, "Unable to read header\n");
+		dev_err(&chip->dev, "Unable to read header\n");
 		goto out;
 	}
 
@@ -459,14 +459,14 @@ static int tpm_tis_i2c_recv(struct tpm_c
 	size += recv_data(chip, &buf[TPM_HEADER_SIZE],
 			  expected - TPM_HEADER_SIZE);
 	if (size < expected) {
-		dev_err(chip->pdev, "Unable to read remainder of result\n");
+		dev_err(&chip->dev, "Unable to read remainder of result\n");
 		size = -ETIME;
 		goto out;
 	}
 
 	wait_for_stat(chip, TPM_STS_VALID, chip->vendor.timeout_c, &status);
 	if (status & TPM_STS_DATA_AVAIL) {	/* retry? */
-		dev_err(chip->pdev, "Error left over data\n");
+		dev_err(&chip->dev, "Error left over data\n");
 		size = -EIO;
 		goto out;
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/char/tpm/tpm_i2c_nuvoton.c linux-libre-4.4.107-gnu/drivers/char/tpm/tpm_i2c_nuvoton.c
--- linux-libre-4.4-gnu/drivers/char/tpm/tpm_i2c_nuvoton.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/char/tpm/tpm_i2c_nuvoton.c	2017-12-20 04:05:01.000000000 -0500
@@ -96,13 +96,13 @@ static s32 i2c_nuvoton_write_buf(struct
 /* read TPM_STS register */
 static u8 i2c_nuvoton_read_status(struct tpm_chip *chip)
 {
-	struct i2c_client *client = to_i2c_client(chip->pdev);
+	struct i2c_client *client = to_i2c_client(chip->dev.parent);
 	s32 status;
 	u8 data;
 
 	status = i2c_nuvoton_read_buf(client, TPM_STS, 1, &data);
 	if (status <= 0) {
-		dev_err(chip->pdev, "%s() error return %d\n", __func__,
+		dev_err(&chip->dev, "%s() error return %d\n", __func__,
 			status);
 		data = TPM_STS_ERR_VAL;
 	}
@@ -127,13 +127,13 @@ static s32 i2c_nuvoton_write_status(stru
 /* write commandReady to TPM_STS register */
 static void i2c_nuvoton_ready(struct tpm_chip *chip)
 {
-	struct i2c_client *client = to_i2c_client(chip->pdev);
+	struct i2c_client *client = to_i2c_client(chip->dev.parent);
 	s32 status;
 
 	/* this causes the current command to be aborted */
 	status = i2c_nuvoton_write_status(client, TPM_STS_COMMAND_READY);
 	if (status < 0)
-		dev_err(chip->pdev,
+		dev_err(&chip->dev,
 			"%s() fail to write TPM_STS.commandReady\n", __func__);
 }
 
@@ -212,7 +212,7 @@ static int i2c_nuvoton_wait_for_stat(str
 				return 0;
 		} while (time_before(jiffies, stop));
 	}
-	dev_err(chip->pdev, "%s(%02x, %02x) -> timeout\n", __func__, mask,
+	dev_err(&chip->dev, "%s(%02x, %02x) -> timeout\n", __func__, mask,
 		value);
 	return -ETIMEDOUT;
 }
@@ -240,7 +240,7 @@ static int i2c_nuvoton_recv_data(struct
 					       &chip->vendor.read_queue) == 0) {
 		burst_count = i2c_nuvoton_get_burstcount(client, chip);
 		if (burst_count < 0) {
-			dev_err(chip->pdev,
+			dev_err(&chip->dev,
 				"%s() fail to read burstCount=%d\n", __func__,
 				burst_count);
 			return -EIO;
@@ -249,12 +249,12 @@ static int i2c_nuvoton_recv_data(struct
 		rc = i2c_nuvoton_read_buf(client, TPM_DATA_FIFO_R,
 					  bytes2read, &buf[size]);
 		if (rc < 0) {
-			dev_err(chip->pdev,
+			dev_err(&chip->dev,
 				"%s() fail on i2c_nuvoton_read_buf()=%d\n",
 				__func__, rc);
 			return -EIO;
 		}
-		dev_dbg(chip->pdev, "%s(%d):", __func__, bytes2read);
+		dev_dbg(&chip->dev, "%s(%d):", __func__, bytes2read);
 		size += bytes2read;
 	}
 
@@ -264,7 +264,7 @@ static int i2c_nuvoton_recv_data(struct
 /* Read TPM command results */
 static int i2c_nuvoton_recv(struct tpm_chip *chip, u8 *buf, size_t count)
 {
-	struct device *dev = chip->pdev;
+	struct device *dev = chip->dev.parent;
 	struct i2c_client *client = to_i2c_client(dev);
 	s32 rc;
 	int expected, status, burst_count, retries, size = 0;
@@ -334,7 +334,7 @@ static int i2c_nuvoton_recv(struct tpm_c
 		break;
 	}
 	i2c_nuvoton_ready(chip);
-	dev_dbg(chip->pdev, "%s() -> %d\n", __func__, size);
+	dev_dbg(&chip->dev, "%s() -> %d\n", __func__, size);
 	return size;
 }
 
@@ -347,7 +347,7 @@ static int i2c_nuvoton_recv(struct tpm_c
  */
 static int i2c_nuvoton_send(struct tpm_chip *chip, u8 *buf, size_t len)
 {
-	struct device *dev = chip->pdev;
+	struct device *dev = chip->dev.parent;
 	struct i2c_client *client = to_i2c_client(dev);
 	u32 ordinal;
 	size_t count = 0;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/char/tpm/tpm_infineon.c linux-libre-4.4.107-gnu/drivers/char/tpm/tpm_infineon.c
--- linux-libre-4.4-gnu/drivers/char/tpm/tpm_infineon.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/char/tpm/tpm_infineon.c	2017-12-20 04:05:01.000000000 -0500
@@ -195,9 +195,9 @@ static int wait(struct tpm_chip *chip, i
 	}
 	if (i == TPM_MAX_TRIES) {	/* timeout occurs */
 		if (wait_for_bit == STAT_XFE)
-			dev_err(chip->pdev, "Timeout in wait(STAT_XFE)\n");
+			dev_err(&chip->dev, "Timeout in wait(STAT_XFE)\n");
 		if (wait_for_bit == STAT_RDA)
-			dev_err(chip->pdev, "Timeout in wait(STAT_RDA)\n");
+			dev_err(&chip->dev, "Timeout in wait(STAT_RDA)\n");
 		return -EIO;
 	}
 	return 0;
@@ -220,7 +220,7 @@ static void wait_and_send(struct tpm_chi
 static void tpm_wtx(struct tpm_chip *chip)
 {
 	number_of_wtx++;
-	dev_info(chip->pdev, "Granting WTX (%02d / %02d)\n",
+	dev_info(&chip->dev, "Granting WTX (%02d / %02d)\n",
 		 number_of_wtx, TPM_MAX_WTX_PACKAGES);
 	wait_and_send(chip, TPM_VL_VER);
 	wait_and_send(chip, TPM_CTRL_WTX);
@@ -231,7 +231,7 @@ static void tpm_wtx(struct tpm_chip *chi
 
 static void tpm_wtx_abort(struct tpm_chip *chip)
 {
-	dev_info(chip->pdev, "Aborting WTX\n");
+	dev_info(&chip->dev, "Aborting WTX\n");
 	wait_and_send(chip, TPM_VL_VER);
 	wait_and_send(chip, TPM_CTRL_WTX_ABORT);
 	wait_and_send(chip, 0x00);
@@ -257,7 +257,7 @@ recv_begin:
 	}
 
 	if (buf[0] != TPM_VL_VER) {
-		dev_err(chip->pdev,
+		dev_err(&chip->dev,
 			"Wrong transport protocol implementation!\n");
 		return -EIO;
 	}
@@ -272,7 +272,7 @@ recv_begin:
 		}
 
 		if ((size == 0x6D00) && (buf[1] == 0x80)) {
-			dev_err(chip->pdev, "Error handling on vendor layer!\n");
+			dev_err(&chip->dev, "Error handling on vendor layer!\n");
 			return -EIO;
 		}
 
@@ -284,7 +284,7 @@ recv_begin:
 	}
 
 	if (buf[1] == TPM_CTRL_WTX) {
-		dev_info(chip->pdev, "WTX-package received\n");
+		dev_info(&chip->dev, "WTX-package received\n");
 		if (number_of_wtx < TPM_MAX_WTX_PACKAGES) {
 			tpm_wtx(chip);
 			goto recv_begin;
@@ -295,14 +295,14 @@ recv_begin:
 	}
 
 	if (buf[1] == TPM_CTRL_WTX_ABORT_ACK) {
-		dev_info(chip->pdev, "WTX-abort acknowledged\n");
+		dev_info(&chip->dev, "WTX-abort acknowledged\n");
 		return size;
 	}
 
 	if (buf[1] == TPM_CTRL_ERROR) {
-		dev_err(chip->pdev, "ERROR-package received:\n");
+		dev_err(&chip->dev, "ERROR-package received:\n");
 		if (buf[4] == TPM_INF_NAK)
-			dev_err(chip->pdev,
+			dev_err(&chip->dev,
 				"-> Negative acknowledgement"
 				" - retransmit command!\n");
 		return -EIO;
@@ -321,7 +321,7 @@ static int tpm_inf_send(struct tpm_chip
 
 	ret = empty_fifo(chip, 1);
 	if (ret) {
-		dev_err(chip->pdev, "Timeout while clearing FIFO\n");
+		dev_err(&chip->dev, "Timeout while clearing FIFO\n");
 		return -EIO;
 	}
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/char/tpm/tpm-interface.c linux-libre-4.4.107-gnu/drivers/char/tpm/tpm-interface.c
--- linux-libre-4.4-gnu/drivers/char/tpm/tpm-interface.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/char/tpm/tpm-interface.c	2017-12-20 04:05:01.000000000 -0500
@@ -328,8 +328,8 @@ EXPORT_SYMBOL_GPL(tpm_calc_ordinal_durat
 /*
  * Internal kernel interface to transmit TPM commands
  */
-ssize_t tpm_transmit(struct tpm_chip *chip, const char *buf,
-		     size_t bufsiz)
+ssize_t tpm_transmit(struct tpm_chip *chip, const u8 *buf, size_t bufsiz,
+		     unsigned int flags)
 {
 	ssize_t rc;
 	u32 count, ordinal;
@@ -343,16 +343,17 @@ ssize_t tpm_transmit(struct tpm_chip *ch
 	if (count == 0)
 		return -ENODATA;
 	if (count > bufsiz) {
-		dev_err(chip->pdev,
+		dev_err(&chip->dev,
 			"invalid count value %x %zx\n", count, bufsiz);
 		return -E2BIG;
 	}
 
-	mutex_lock(&chip->tpm_mutex);
+	if (!(flags & TPM_TRANSMIT_UNLOCKED))
+		mutex_lock(&chip->tpm_mutex);
 
 	rc = chip->ops->send(chip, (u8 *) buf, count);
 	if (rc < 0) {
-		dev_err(chip->pdev,
+		dev_err(&chip->dev,
 			"tpm_transmit: tpm_send: error %zd\n", rc);
 		goto out;
 	}
@@ -371,7 +372,7 @@ ssize_t tpm_transmit(struct tpm_chip *ch
 			goto out_recv;
 
 		if (chip->ops->req_canceled(chip, status)) {
-			dev_err(chip->pdev, "Operation Canceled\n");
+			dev_err(&chip->dev, "Operation Canceled\n");
 			rc = -ECANCELED;
 			goto out;
 		}
@@ -381,30 +382,31 @@ ssize_t tpm_transmit(struct tpm_chip *ch
 	} while (time_before(jiffies, stop));
 
 	chip->ops->cancel(chip);
-	dev_err(chip->pdev, "Operation Timed out\n");
+	dev_err(&chip->dev, "Operation Timed out\n");
 	rc = -ETIME;
 	goto out;
 
 out_recv:
 	rc = chip->ops->recv(chip, (u8 *) buf, bufsiz);
 	if (rc < 0)
-		dev_err(chip->pdev,
+		dev_err(&chip->dev,
 			"tpm_transmit: tpm_recv: error %zd\n", rc);
 out:
-	mutex_unlock(&chip->tpm_mutex);
+	if (!(flags & TPM_TRANSMIT_UNLOCKED))
+		mutex_unlock(&chip->tpm_mutex);
 	return rc;
 }
 
 #define TPM_DIGEST_SIZE 20
 #define TPM_RET_CODE_IDX 6
 
-ssize_t tpm_transmit_cmd(struct tpm_chip *chip, void *cmd,
-			 int len, const char *desc)
+ssize_t tpm_transmit_cmd(struct tpm_chip *chip, const void *cmd,
+			 int len, unsigned int flags, const char *desc)
 {
-	struct tpm_output_header *header;
+	const struct tpm_output_header *header;
 	int err;
 
-	len = tpm_transmit(chip, (u8 *) cmd, len);
+	len = tpm_transmit(chip, (const u8 *)cmd, len, flags);
 	if (len <  0)
 		return len;
 	else if (len < TPM_HEADER_SIZE)
@@ -414,7 +416,7 @@ ssize_t tpm_transmit_cmd(struct tpm_chip
 
 	err = be32_to_cpu(header->return_code);
 	if (err != 0 && desc)
-		dev_err(chip->pdev, "A TPM error (%d) occurred %s\n", err,
+		dev_err(&chip->dev, "A TPM error (%d) occurred %s\n", err,
 			desc);
 
 	return err;
@@ -452,7 +454,8 @@ ssize_t tpm_getcap(struct device *dev, _
 		tpm_cmd.params.getcap_in.subcap_size = cpu_to_be32(4);
 		tpm_cmd.params.getcap_in.subcap = subcap_id;
 	}
-	rc = tpm_transmit_cmd(chip, &tpm_cmd, TPM_INTERNAL_RESULT_SIZE, desc);
+	rc = tpm_transmit_cmd(chip, &tpm_cmd, TPM_INTERNAL_RESULT_SIZE, 0,
+			      desc);
 	if (!rc)
 		*cap = tpm_cmd.params.getcap_out.cap;
 	return rc;
@@ -468,7 +471,7 @@ void tpm_gen_interrupt(struct tpm_chip *
 	tpm_cmd.params.getcap_in.subcap_size = cpu_to_be32(4);
 	tpm_cmd.params.getcap_in.subcap = TPM_CAP_PROP_TIS_TIMEOUT;
 
-	rc = tpm_transmit_cmd(chip, &tpm_cmd, TPM_INTERNAL_RESULT_SIZE,
+	rc = tpm_transmit_cmd(chip, &tpm_cmd, TPM_INTERNAL_RESULT_SIZE, 0,
 			      "attempting to determine the timeouts");
 }
 EXPORT_SYMBOL_GPL(tpm_gen_interrupt);
@@ -489,7 +492,7 @@ static int tpm_startup(struct tpm_chip *
 	start_cmd.header.in = tpm_startup_header;
 
 	start_cmd.params.startup_in.startup_type = startup_type;
-	return tpm_transmit_cmd(chip, &start_cmd, TPM_INTERNAL_RESULT_SIZE,
+	return tpm_transmit_cmd(chip, &start_cmd, TPM_INTERNAL_RESULT_SIZE, 0,
 				"attempting to start the TPM");
 }
 
@@ -505,12 +508,13 @@ int tpm_get_timeouts(struct tpm_chip *ch
 	tpm_cmd.params.getcap_in.cap = TPM_CAP_PROP;
 	tpm_cmd.params.getcap_in.subcap_size = cpu_to_be32(4);
 	tpm_cmd.params.getcap_in.subcap = TPM_CAP_PROP_TIS_TIMEOUT;
-	rc = tpm_transmit_cmd(chip, &tpm_cmd, TPM_INTERNAL_RESULT_SIZE, NULL);
+	rc = tpm_transmit_cmd(chip, &tpm_cmd, TPM_INTERNAL_RESULT_SIZE, 0,
+			      NULL);
 
 	if (rc == TPM_ERR_INVALID_POSTINIT) {
 		/* The TPM is not started, we are the first to talk to it.
 		   Execute a startup command. */
-		dev_info(chip->pdev, "Issuing TPM_STARTUP");
+		dev_info(&chip->dev, "Issuing TPM_STARTUP");
 		if (tpm_startup(chip, TPM_ST_CLEAR))
 			return rc;
 
@@ -519,10 +523,10 @@ int tpm_get_timeouts(struct tpm_chip *ch
 		tpm_cmd.params.getcap_in.subcap_size = cpu_to_be32(4);
 		tpm_cmd.params.getcap_in.subcap = TPM_CAP_PROP_TIS_TIMEOUT;
 		rc = tpm_transmit_cmd(chip, &tpm_cmd, TPM_INTERNAL_RESULT_SIZE,
-				  NULL);
+				      0, NULL);
 	}
 	if (rc) {
-		dev_err(chip->pdev,
+		dev_err(&chip->dev,
 			"A TPM error (%zd) occurred attempting to determine the timeouts\n",
 			rc);
 		goto duration;
@@ -561,7 +565,7 @@ int tpm_get_timeouts(struct tpm_chip *ch
 
 	/* Report adjusted timeouts */
 	if (chip->vendor.timeout_adjusted) {
-		dev_info(chip->pdev,
+		dev_info(&chip->dev,
 			 HW_ERR "Adjusting reported timeouts: A %lu->%luus B %lu->%luus C %lu->%luus D %lu->%luus\n",
 			 old_timeout[0], new_timeout[0],
 			 old_timeout[1], new_timeout[1],
@@ -580,7 +584,7 @@ duration:
 	tpm_cmd.params.getcap_in.subcap_size = cpu_to_be32(4);
 	tpm_cmd.params.getcap_in.subcap = TPM_CAP_PROP_TIS_DURATION;
 
-	rc = tpm_transmit_cmd(chip, &tpm_cmd, TPM_INTERNAL_RESULT_SIZE,
+	rc = tpm_transmit_cmd(chip, &tpm_cmd, TPM_INTERNAL_RESULT_SIZE, 0,
 			      "attempting to determine the durations");
 	if (rc)
 		return rc;
@@ -608,7 +612,7 @@ duration:
 		chip->vendor.duration[TPM_MEDIUM] *= 1000;
 		chip->vendor.duration[TPM_LONG] *= 1000;
 		chip->vendor.duration_adjusted = true;
-		dev_info(chip->pdev, "Adjusting TPM timeout parameters.");
+		dev_info(&chip->dev, "Adjusting TPM timeout parameters.");
 	}
 	return 0;
 }
@@ -636,7 +640,7 @@ static int tpm_continue_selftest(struct
 	struct tpm_cmd_t cmd;
 
 	cmd.header.in = continue_selftest_header;
-	rc = tpm_transmit_cmd(chip, &cmd, CONTINUE_SELFTEST_RESULT_SIZE,
+	rc = tpm_transmit_cmd(chip, &cmd, CONTINUE_SELFTEST_RESULT_SIZE, 0,
 			      "continue selftest");
 	return rc;
 }
@@ -656,7 +660,7 @@ int tpm_pcr_read_dev(struct tpm_chip *ch
 
 	cmd.header.in = pcrread_header;
 	cmd.params.pcrread_in.pcr_idx = cpu_to_be32(pcr_idx);
-	rc = tpm_transmit_cmd(chip, &cmd, READ_PCR_RESULT_SIZE,
+	rc = tpm_transmit_cmd(chip, &cmd, READ_PCR_RESULT_SIZE, 0,
 			      "attempting to read a pcr value");
 
 	if (rc == 0)
@@ -683,7 +687,7 @@ int tpm_is_tpm2(u32 chip_num)
 
 	rc = (chip->flags & TPM_CHIP_FLAG_TPM2) != 0;
 
-	tpm_chip_put(chip);
+	tpm_put_ops(chip);
 
 	return rc;
 }
@@ -712,7 +716,7 @@ int tpm_pcr_read(u32 chip_num, int pcr_i
 		rc = tpm2_pcr_read(chip, pcr_idx, res_buf);
 	else
 		rc = tpm_pcr_read_dev(chip, pcr_idx, res_buf);
-	tpm_chip_put(chip);
+	tpm_put_ops(chip);
 	return rc;
 }
 EXPORT_SYMBOL_GPL(tpm_pcr_read);
@@ -747,17 +751,17 @@ int tpm_pcr_extend(u32 chip_num, int pcr
 
 	if (chip->flags & TPM_CHIP_FLAG_TPM2) {
 		rc = tpm2_pcr_extend(chip, pcr_idx, hash);
-		tpm_chip_put(chip);
+		tpm_put_ops(chip);
 		return rc;
 	}
 
 	cmd.header.in = pcrextend_header;
 	cmd.params.pcrextend_in.pcr_idx = cpu_to_be32(pcr_idx);
 	memcpy(cmd.params.pcrextend_in.hash, hash, TPM_DIGEST_SIZE);
-	rc = tpm_transmit_cmd(chip, &cmd, EXTEND_PCR_RESULT_SIZE,
+	rc = tpm_transmit_cmd(chip, &cmd, EXTEND_PCR_RESULT_SIZE, 0,
 			      "attempting extend a PCR value");
 
-	tpm_chip_put(chip);
+	tpm_put_ops(chip);
 	return rc;
 }
 EXPORT_SYMBOL_GPL(tpm_pcr_extend);
@@ -793,12 +797,14 @@ int tpm_do_selftest(struct tpm_chip *chi
 		/* Attempt to read a PCR value */
 		cmd.header.in = pcrread_header;
 		cmd.params.pcrread_in.pcr_idx = cpu_to_be32(0);
-		rc = tpm_transmit(chip, (u8 *) &cmd, READ_PCR_RESULT_SIZE);
+		rc = tpm_transmit(chip, (u8 *) &cmd, READ_PCR_RESULT_SIZE, 0);
 		/* Some buggy TPMs will not respond to tpm_tis_ready() for
 		 * around 300ms while the self test is ongoing, keep trying
 		 * until the self test duration expires. */
 		if (rc == -ETIME) {
-			dev_info(chip->pdev, HW_ERR "TPM command timed out during continue self test");
+			dev_info(
+			    &chip->dev, HW_ERR
+			    "TPM command timed out during continue self test");
 			msleep(delay_msec);
 			continue;
 		}
@@ -808,7 +814,7 @@ int tpm_do_selftest(struct tpm_chip *chi
 
 		rc = be32_to_cpu(cmd.header.out.return_code);
 		if (rc == TPM_ERR_DISABLED || rc == TPM_ERR_DEACTIVATED) {
-			dev_info(chip->pdev,
+			dev_info(&chip->dev,
 				 "TPM is disabled/deactivated (0x%X)\n", rc);
 			/* TPM is disabled and/or deactivated; driver can
 			 * proceed and TPM does handle commands for
@@ -834,9 +840,9 @@ int tpm_send(u32 chip_num, void *cmd, si
 	if (chip == NULL)
 		return -ENODEV;
 
-	rc = tpm_transmit_cmd(chip, cmd, buflen, "attempting tpm_cmd");
+	rc = tpm_transmit_cmd(chip, cmd, buflen, 0, "attempting tpm_cmd");
 
-	tpm_chip_put(chip);
+	tpm_put_ops(chip);
 	return rc;
 }
 EXPORT_SYMBOL_GPL(tpm_send);
@@ -936,14 +942,15 @@ int tpm_pm_suspend(struct device *dev)
 		cmd.params.pcrextend_in.pcr_idx = cpu_to_be32(tpm_suspend_pcr);
 		memcpy(cmd.params.pcrextend_in.hash, dummy_hash,
 		       TPM_DIGEST_SIZE);
-		rc = tpm_transmit_cmd(chip, &cmd, EXTEND_PCR_RESULT_SIZE,
+		rc = tpm_transmit_cmd(chip, &cmd, EXTEND_PCR_RESULT_SIZE, 0,
 				      "extending dummy pcr before suspend");
 	}
 
 	/* now do the actual savestate */
 	for (try = 0; try < TPM_RETRY; try++) {
 		cmd.header.in = savestate_header;
-		rc = tpm_transmit_cmd(chip, &cmd, SAVESTATE_RESULT_SIZE, NULL);
+		rc = tpm_transmit_cmd(chip, &cmd, SAVESTATE_RESULT_SIZE, 0,
+				      NULL);
 
 		/*
 		 * If the TPM indicates that it is too busy to respond to
@@ -961,10 +968,10 @@ int tpm_pm_suspend(struct device *dev)
 	}
 
 	if (rc)
-		dev_err(chip->pdev,
+		dev_err(&chip->dev,
 			"Error (%d) sending savestate before suspend\n", rc);
 	else if (try > 0)
-		dev_warn(chip->pdev, "TPM savestate took %dms\n",
+		dev_warn(&chip->dev, "TPM savestate took %dms\n",
 			 try * TPM_TIMEOUT_RETRY);
 
 	return rc;
@@ -1018,7 +1025,7 @@ int tpm_get_random(u32 chip_num, u8 *out
 
 	if (chip->flags & TPM_CHIP_FLAG_TPM2) {
 		err = tpm2_get_random(chip, out, max);
-		tpm_chip_put(chip);
+		tpm_put_ops(chip);
 		return err;
 	}
 
@@ -1027,8 +1034,8 @@ int tpm_get_random(u32 chip_num, u8 *out
 		tpm_cmd.params.getrandom_in.num_bytes = cpu_to_be32(num_bytes);
 
 		err = tpm_transmit_cmd(chip, &tpm_cmd,
-				   TPM_GETRANDOM_RESULT_SIZE + num_bytes,
-				   "attempting get random");
+				       TPM_GETRANDOM_RESULT_SIZE + num_bytes,
+				       0, "attempting get random");
 		if (err)
 			break;
 
@@ -1040,7 +1047,7 @@ int tpm_get_random(u32 chip_num, u8 *out
 		num_bytes -= recd;
 	} while (retries-- && total < max);
 
-	tpm_chip_put(chip);
+	tpm_put_ops(chip);
 	return total ? total : -EIO;
 }
 EXPORT_SYMBOL_GPL(tpm_get_random);
@@ -1066,7 +1073,7 @@ int tpm_seal_trusted(u32 chip_num, struc
 
 	rc = tpm2_seal_trusted(chip, payload, options);
 
-	tpm_chip_put(chip);
+	tpm_put_ops(chip);
 	return rc;
 }
 EXPORT_SYMBOL_GPL(tpm_seal_trusted);
@@ -1092,7 +1099,8 @@ int tpm_unseal_trusted(u32 chip_num, str
 
 	rc = tpm2_unseal_trusted(chip, payload, options);
 
-	tpm_chip_put(chip);
+	tpm_put_ops(chip);
+
 	return rc;
 }
 EXPORT_SYMBOL_GPL(tpm_unseal_trusted);
@@ -1119,6 +1127,7 @@ static int __init tpm_init(void)
 
 static void __exit tpm_exit(void)
 {
+	idr_destroy(&dev_nums_idr);
 	class_destroy(tpm_class);
 	unregister_chrdev_region(tpm_devt, TPM_NUM_DEVICES);
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/char/tpm/tpm_nsc.c linux-libre-4.4.107-gnu/drivers/char/tpm/tpm_nsc.c
--- linux-libre-4.4-gnu/drivers/char/tpm/tpm_nsc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/char/tpm/tpm_nsc.c	2017-12-20 04:05:01.000000000 -0500
@@ -113,7 +113,7 @@ static int nsc_wait_for_ready(struct tpm
 	}
 	while (time_before(jiffies, stop));
 
-	dev_info(chip->pdev, "wait for ready failed\n");
+	dev_info(&chip->dev, "wait for ready failed\n");
 	return -EBUSY;
 }
 
@@ -129,12 +129,12 @@ static int tpm_nsc_recv(struct tpm_chip
 		return -EIO;
 
 	if (wait_for_stat(chip, NSC_STATUS_F0, NSC_STATUS_F0, &data) < 0) {
-		dev_err(chip->pdev, "F0 timeout\n");
+		dev_err(&chip->dev, "F0 timeout\n");
 		return -EIO;
 	}
 	if ((data =
 	     inb(chip->vendor.base + NSC_DATA)) != NSC_COMMAND_NORMAL) {
-		dev_err(chip->pdev, "not in normal mode (0x%x)\n",
+		dev_err(&chip->dev, "not in normal mode (0x%x)\n",
 			data);
 		return -EIO;
 	}
@@ -143,7 +143,7 @@ static int tpm_nsc_recv(struct tpm_chip
 	for (p = buffer; p < &buffer[count]; p++) {
 		if (wait_for_stat
 		    (chip, NSC_STATUS_OBF, NSC_STATUS_OBF, &data) < 0) {
-			dev_err(chip->pdev,
+			dev_err(&chip->dev,
 				"OBF timeout (while reading data)\n");
 			return -EIO;
 		}
@@ -154,11 +154,11 @@ static int tpm_nsc_recv(struct tpm_chip
 
 	if ((data & NSC_STATUS_F0) == 0 &&
 	(wait_for_stat(chip, NSC_STATUS_F0, NSC_STATUS_F0, &data) < 0)) {
-		dev_err(chip->pdev, "F0 not set\n");
+		dev_err(&chip->dev, "F0 not set\n");
 		return -EIO;
 	}
 	if ((data = inb(chip->vendor.base + NSC_DATA)) != NSC_COMMAND_EOC) {
-		dev_err(chip->pdev,
+		dev_err(&chip->dev,
 			"expected end of command(0x%x)\n", data);
 		return -EIO;
 	}
@@ -189,19 +189,19 @@ static int tpm_nsc_send(struct tpm_chip
 		return -EIO;
 
 	if (wait_for_stat(chip, NSC_STATUS_IBF, 0, &data) < 0) {
-		dev_err(chip->pdev, "IBF timeout\n");
+		dev_err(&chip->dev, "IBF timeout\n");
 		return -EIO;
 	}
 
 	outb(NSC_COMMAND_NORMAL, chip->vendor.base + NSC_COMMAND);
 	if (wait_for_stat(chip, NSC_STATUS_IBR, NSC_STATUS_IBR, &data) < 0) {
-		dev_err(chip->pdev, "IBR timeout\n");
+		dev_err(&chip->dev, "IBR timeout\n");
 		return -EIO;
 	}
 
 	for (i = 0; i < count; i++) {
 		if (wait_for_stat(chip, NSC_STATUS_IBF, 0, &data) < 0) {
-			dev_err(chip->pdev,
+			dev_err(&chip->dev,
 				"IBF timeout (while writing data)\n");
 			return -EIO;
 		}
@@ -209,7 +209,7 @@ static int tpm_nsc_send(struct tpm_chip
 	}
 
 	if (wait_for_stat(chip, NSC_STATUS_IBF, 0, &data) < 0) {
-		dev_err(chip->pdev, "IBF timeout\n");
+		dev_err(&chip->dev, "IBF timeout\n");
 		return -EIO;
 	}
 	outb(NSC_COMMAND_EOC, chip->vendor.base + NSC_COMMAND);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/char/tpm/tpm-sysfs.c linux-libre-4.4.107-gnu/drivers/char/tpm/tpm-sysfs.c
--- linux-libre-4.4-gnu/drivers/char/tpm/tpm-sysfs.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/char/tpm/tpm-sysfs.c	2017-12-20 04:05:01.000000000 -0500
@@ -38,8 +38,10 @@ static ssize_t pubek_show(struct device
 
 	struct tpm_chip *chip = dev_get_drvdata(dev);
 
+	memset(&tpm_cmd, 0, sizeof(tpm_cmd));
+
 	tpm_cmd.header.in = tpm_readpubek_header;
-	err = tpm_transmit_cmd(chip, &tpm_cmd, READ_PUBEK_RESULT_SIZE,
+	err = tpm_transmit_cmd(chip, &tpm_cmd, READ_PUBEK_RESULT_SIZE, 0,
 			       "attempting to read the PUBEK");
 	if (err)
 		goto out;
@@ -284,16 +286,28 @@ static const struct attribute_group tpm_
 int tpm_sysfs_add_device(struct tpm_chip *chip)
 {
 	int err;
-	err = sysfs_create_group(&chip->pdev->kobj,
+
+	/* XXX: If you wish to remove this restriction, you must first update
+	 * tpm_sysfs to explicitly lock chip->ops.
+	 */
+	if (chip->flags & TPM_CHIP_FLAG_TPM2)
+		return 0;
+
+	err = sysfs_create_group(&chip->dev.parent->kobj,
 				 &tpm_dev_group);
 
 	if (err)
-		dev_err(chip->pdev,
+		dev_err(&chip->dev,
 			"failed to create sysfs attributes, %d\n", err);
 	return err;
 }
 
 void tpm_sysfs_del_device(struct tpm_chip *chip)
 {
-	sysfs_remove_group(&chip->pdev->kobj, &tpm_dev_group);
+	/* The sysfs routines rely on an implicit tpm_try_get_ops, this
+	 * function is called before ops is null'd and the sysfs core
+	 * synchronizes this removal so that no callbacks are running or can
+	 * run again
+	 */
+	sysfs_remove_group(&chip->dev.parent->kobj, &tpm_dev_group);
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/char/tpm/tpm_tis.c linux-libre-4.4.107-gnu/drivers/char/tpm/tpm_tis.c
--- linux-libre-4.4-gnu/drivers/char/tpm/tpm_tis.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/char/tpm/tpm_tis.c	2017-12-20 04:05:01.000000000 -0500
@@ -293,7 +293,7 @@ static int tpm_tis_recv(struct tpm_chip
 	/* read first 10 bytes, including tag, paramsize, and result */
 	if ((size =
 	     recv_data(chip, buf, TPM_HEADER_SIZE)) < TPM_HEADER_SIZE) {
-		dev_err(chip->pdev, "Unable to read header\n");
+		dev_err(&chip->dev, "Unable to read header\n");
 		goto out;
 	}
 
@@ -306,7 +306,7 @@ static int tpm_tis_recv(struct tpm_chip
 	if ((size +=
 	     recv_data(chip, &buf[TPM_HEADER_SIZE],
 		       expected - TPM_HEADER_SIZE)) < expected) {
-		dev_err(chip->pdev, "Unable to read remainder of result\n");
+		dev_err(&chip->dev, "Unable to read remainder of result\n");
 		size = -ETIME;
 		goto out;
 	}
@@ -315,7 +315,7 @@ static int tpm_tis_recv(struct tpm_chip
 			  &chip->vendor.int_queue, false);
 	status = tpm_tis_status(chip);
 	if (status & TPM_STS_DATA_AVAIL) {	/* retry? */
-		dev_err(chip->pdev, "Error left over data\n");
+		dev_err(&chip->dev, "Error left over data\n");
 		size = -EIO;
 		goto out;
 	}
@@ -401,7 +401,7 @@ static void disable_interrupts(struct tp
 	iowrite32(intmask,
 		  chip->vendor.iobase +
 		  TPM_INT_ENABLE(chip->vendor.locality));
-	free_irq(chip->vendor.irq, chip);
+	devm_free_irq(&chip->dev, chip->vendor.irq, chip);
 	chip->vendor.irq = 0;
 }
 
@@ -463,7 +463,7 @@ static int tpm_tis_send(struct tpm_chip
 		msleep(1);
 	if (!priv->irq_tested) {
 		disable_interrupts(chip);
-		dev_err(chip->pdev,
+		dev_err(&chip->dev,
 			FW_BUG "TPM interrupt not working, polling instead\n");
 	}
 	priv->irq_tested = true;
@@ -533,7 +533,7 @@ static int probe_itpm(struct tpm_chip *c
 
 	rc = tpm_tis_send_data(chip, cmd_getticks, len);
 	if (rc == 0) {
-		dev_info(chip->pdev, "Detected an iTPM.\n");
+		dev_info(&chip->dev, "Detected an iTPM.\n");
 		rc = 1;
 	} else
 		rc = -EFAULT;
@@ -766,7 +766,7 @@ static int tpm_tis_init(struct device *d
 			if (devm_request_irq
 			    (dev, i, tis_int_probe, IRQF_SHARED,
 			     chip->devname, chip) != 0) {
-				dev_info(chip->pdev,
+				dev_info(&chip->dev,
 					 "Unable to request irq: %d for probe\n",
 					 i);
 				continue;
@@ -818,7 +818,7 @@ static int tpm_tis_init(struct device *d
 		if (devm_request_irq
 		    (dev, chip->vendor.irq, tis_int_handler, IRQF_SHARED,
 		     chip->devname, chip) != 0) {
-			dev_info(chip->pdev,
+			dev_info(&chip->dev,
 				 "Unable to request irq: %d for use\n",
 				 chip->vendor.irq);
 			chip->vendor.irq = 0;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/char/tpm/xen-tpmfront.c linux-libre-4.4.107-gnu/drivers/char/tpm/xen-tpmfront.c
--- linux-libre-4.4-gnu/drivers/char/tpm/xen-tpmfront.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/char/tpm/xen-tpmfront.c	2017-12-20 04:05:01.000000000 -0500
@@ -305,7 +305,6 @@ static int tpmfront_probe(struct xenbus_
 	rv = setup_ring(dev, priv);
 	if (rv) {
 		chip = dev_get_drvdata(&dev->dev);
-		tpm_chip_unregister(chip);
 		ring_free(priv);
 		return rv;
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/char/virtio_console.c linux-libre-4.4.107-gnu/drivers/char/virtio_console.c
--- linux-libre-4.4-gnu/drivers/char/virtio_console.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/char/virtio_console.c	2017-12-20 04:05:01.000000000 -0500
@@ -1130,6 +1130,8 @@ static int put_chars(u32 vtermno, const
 {
 	struct port *port;
 	struct scatterlist sg[1];
+	void *data;
+	int ret;
 
 	if (unlikely(early_put_chars))
 		return early_put_chars(vtermno, buf, count);
@@ -1138,8 +1140,14 @@ static int put_chars(u32 vtermno, const
 	if (!port)
 		return -EPIPE;
 
-	sg_init_one(sg, buf, count);
-	return __send_to_port(port, sg, 1, count, (void *)buf, false);
+	data = kmemdup(buf, count, GFP_ATOMIC);
+	if (!data)
+		return -ENOMEM;
+
+	sg_init_one(sg, data, count);
+	ret = __send_to_port(port, sg, 1, count, data, false);
+	kfree(data);
+	return ret;
 }
 
 /*
@@ -1533,19 +1541,29 @@ static void remove_port_data(struct port
 	spin_lock_irq(&port->inbuf_lock);
 	/* Remove unused data this port might have received. */
 	discard_port_data(port);
+	spin_unlock_irq(&port->inbuf_lock);
 
 	/* Remove buffers we queued up for the Host to send us data in. */
-	while ((buf = virtqueue_detach_unused_buf(port->in_vq)))
-		free_buf(buf, true);
-	spin_unlock_irq(&port->inbuf_lock);
+	do {
+		spin_lock_irq(&port->inbuf_lock);
+		buf = virtqueue_detach_unused_buf(port->in_vq);
+		spin_unlock_irq(&port->inbuf_lock);
+		if (buf)
+			free_buf(buf, true);
+	} while (buf);
 
 	spin_lock_irq(&port->outvq_lock);
 	reclaim_consumed_buffers(port);
+	spin_unlock_irq(&port->outvq_lock);
 
 	/* Free pending buffers from the out-queue. */
-	while ((buf = virtqueue_detach_unused_buf(port->out_vq)))
-		free_buf(buf, true);
-	spin_unlock_irq(&port->outvq_lock);
+	do {
+		spin_lock_irq(&port->outvq_lock);
+		buf = virtqueue_detach_unused_buf(port->out_vq);
+		spin_unlock_irq(&port->outvq_lock);
+		if (buf)
+			free_buf(buf, true);
+	} while (buf);
 }
 
 /*
@@ -1846,7 +1864,7 @@ static void config_work_handler(struct w
 {
 	struct ports_device *portdev;
 
-	portdev = container_of(work, struct ports_device, control_work);
+	portdev = container_of(work, struct ports_device, config_work);
 	if (!use_multiport(portdev)) {
 		struct virtio_device *vdev;
 		struct port *port;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/clk/at91/clk-h32mx.c linux-libre-4.4.107-gnu/drivers/clk/at91/clk-h32mx.c
--- linux-libre-4.4-gnu/drivers/clk/at91/clk-h32mx.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/clk/at91/clk-h32mx.c	2017-12-20 04:05:01.000000000 -0500
@@ -116,7 +116,7 @@ void __init of_sama5d4_clk_h32mx_setup(s
 	h32mxclk->pmc = pmc;
 
 	clk = clk_register(NULL, &h32mxclk->hw);
-	if (!clk) {
+	if (IS_ERR(clk)) {
 		kfree(h32mxclk);
 		return;
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/clk/bcm/clk-bcm2835.c linux-libre-4.4.107-gnu/drivers/clk/bcm/clk-bcm2835.c
--- linux-libre-4.4-gnu/drivers/clk/bcm/clk-bcm2835.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/clk/bcm/clk-bcm2835.c	2017-12-20 04:05:01.000000000 -0500
@@ -890,8 +890,14 @@ static void bcm2835_pll_off(struct clk_h
 	struct bcm2835_cprman *cprman = pll->cprman;
 	const struct bcm2835_pll_data *data = pll->data;
 
-	cprman_write(cprman, data->cm_ctrl_reg, CM_PLL_ANARST);
-	cprman_write(cprman, data->a2w_ctrl_reg, A2W_PLL_CTRL_PWRDN);
+	spin_lock(&cprman->regs_lock);
+	cprman_write(cprman, data->cm_ctrl_reg,
+		     cprman_read(cprman, data->cm_ctrl_reg) |
+		     CM_PLL_ANARST);
+	cprman_write(cprman, data->a2w_ctrl_reg,
+		     cprman_read(cprman, data->a2w_ctrl_reg) |
+		     A2W_PLL_CTRL_PWRDN);
+	spin_unlock(&cprman->regs_lock);
 }
 
 static int bcm2835_pll_on(struct clk_hw *hw)
@@ -901,6 +907,10 @@ static int bcm2835_pll_on(struct clk_hw
 	const struct bcm2835_pll_data *data = pll->data;
 	ktime_t timeout;
 
+	cprman_write(cprman, data->a2w_ctrl_reg,
+		     cprman_read(cprman, data->a2w_ctrl_reg) &
+		     ~A2W_PLL_CTRL_PWRDN);
+
 	/* Take the PLL out of reset. */
 	cprman_write(cprman, data->cm_ctrl_reg,
 		     cprman_read(cprman, data->cm_ctrl_reg) & ~CM_PLL_ANARST);
@@ -1068,10 +1078,14 @@ static void bcm2835_pll_divider_off(stru
 	struct bcm2835_cprman *cprman = divider->cprman;
 	const struct bcm2835_pll_divider_data *data = divider->data;
 
+	spin_lock(&cprman->regs_lock);
 	cprman_write(cprman, data->cm_reg,
 		     (cprman_read(cprman, data->cm_reg) &
 		      ~data->load_mask) | data->hold_mask);
-	cprman_write(cprman, data->a2w_reg, A2W_PLL_CHANNEL_DISABLE);
+	cprman_write(cprman, data->a2w_reg,
+		     cprman_read(cprman, data->a2w_reg) |
+		     A2W_PLL_CHANNEL_DISABLE);
+	spin_unlock(&cprman->regs_lock);
 }
 
 static int bcm2835_pll_divider_on(struct clk_hw *hw)
@@ -1080,12 +1094,14 @@ static int bcm2835_pll_divider_on(struct
 	struct bcm2835_cprman *cprman = divider->cprman;
 	const struct bcm2835_pll_divider_data *data = divider->data;
 
+	spin_lock(&cprman->regs_lock);
 	cprman_write(cprman, data->a2w_reg,
 		     cprman_read(cprman, data->a2w_reg) &
 		     ~A2W_PLL_CHANNEL_DISABLE);
 
 	cprman_write(cprman, data->cm_reg,
 		     cprman_read(cprman, data->cm_reg) & ~data->hold_mask);
+	spin_unlock(&cprman->regs_lock);
 
 	return 0;
 }
@@ -1097,13 +1113,15 @@ static int bcm2835_pll_divider_set_rate(
 	struct bcm2835_pll_divider *divider = bcm2835_pll_divider_from_hw(hw);
 	struct bcm2835_cprman *cprman = divider->cprman;
 	const struct bcm2835_pll_divider_data *data = divider->data;
-	u32 cm;
-	int ret;
+	u32 cm, div, max_div = 1 << A2W_PLL_DIV_BITS;
 
-	ret = clk_divider_ops.set_rate(hw, rate, parent_rate);
-	if (ret)
-		return ret;
+	div = DIV_ROUND_UP_ULL(parent_rate, rate);
 
+	div = min(div, max_div);
+	if (div == max_div)
+		div = 0;
+
+	cprman_write(cprman, data->a2w_reg, div);
 	cm = cprman_read(cprman, data->cm_reg);
 	cprman_write(cprman, data->cm_reg, cm | data->load_mask);
 	cprman_write(cprman, data->cm_reg, cm & ~data->load_mask);
@@ -1165,8 +1183,9 @@ static u32 bcm2835_clock_choose_div(stru
 		div &= ~unused_frac_mask;
 	}
 
-	/* Clamp to the limits. */
-	div = max(div, unused_frac_mask + 1);
+	/* clamp to min divider of 1 */
+	div = max_t(u32, div, 1 << CM_DIV_FRAC_BITS);
+	/* clamp to the highest possible fractional divider */
 	div = min_t(u32, div, GENMASK(data->int_bits + CM_DIV_FRAC_BITS - 1,
 				      CM_DIV_FRAC_BITS - data->frac_bits));
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/clk/clk-divider.c linux-libre-4.4.107-gnu/drivers/clk/clk-divider.c
--- linux-libre-4.4-gnu/drivers/clk/clk-divider.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/clk/clk-divider.c	2017-12-20 04:05:01.000000000 -0500
@@ -354,7 +354,7 @@ static long clk_divider_round_rate(struc
 
 	/* if read only, just return current value */
 	if (divider->flags & CLK_DIVIDER_READ_ONLY) {
-		bestdiv = readl(divider->reg) >> divider->shift;
+		bestdiv = clk_readl(divider->reg) >> divider->shift;
 		bestdiv &= div_mask(divider->width);
 		bestdiv = _get_div(divider->table, bestdiv, divider->flags,
 			divider->width);
@@ -422,6 +422,12 @@ const struct clk_ops clk_divider_ops = {
 };
 EXPORT_SYMBOL_GPL(clk_divider_ops);
 
+const struct clk_ops clk_divider_ro_ops = {
+	.recalc_rate = clk_divider_recalc_rate,
+	.round_rate = clk_divider_round_rate,
+};
+EXPORT_SYMBOL_GPL(clk_divider_ro_ops);
+
 static struct clk *_register_divider(struct device *dev, const char *name,
 		const char *parent_name, unsigned long flags,
 		void __iomem *reg, u8 shift, u8 width,
@@ -445,7 +451,10 @@ static struct clk *_register_divider(str
 		return ERR_PTR(-ENOMEM);
 
 	init.name = name;
-	init.ops = &clk_divider_ops;
+	if (clk_divider_flags & CLK_DIVIDER_READ_ONLY)
+		init.ops = &clk_divider_ro_ops;
+	else
+		init.ops = &clk_divider_ops;
 	init.flags = flags | CLK_IS_BASIC;
 	init.parent_names = (parent_name ? &parent_name: NULL);
 	init.num_parents = (parent_name ? 1 : 0);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/clk/clk-qoriq.c linux-libre-4.4.107-gnu/drivers/clk/clk-qoriq.c
--- linux-libre-4.4-gnu/drivers/clk/clk-qoriq.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/clk/clk-qoriq.c	2017-12-20 04:05:01.000000000 -0500
@@ -700,6 +700,7 @@ static struct clk * __init create_mux_co
 					     struct mux_hwclock *hwc,
 					     const struct clk_ops *ops,
 					     unsigned long min_rate,
+					     unsigned long max_rate,
 					     unsigned long pct80_rate,
 					     const char *fmt, int idx)
 {
@@ -728,6 +729,8 @@ static struct clk * __init create_mux_co
 			continue;
 		if (rate < min_rate)
 			continue;
+		if (rate > max_rate)
+			continue;
 
 		parent_names[j] = div->name;
 		hwc->parent_to_clksel[j] = i;
@@ -759,14 +762,18 @@ static struct clk * __init create_one_cm
 	struct mux_hwclock *hwc;
 	const struct clockgen_pll_div *div;
 	unsigned long plat_rate, min_rate;
-	u64 pct80_rate;
+	u64 max_rate, pct80_rate;
 	u32 clksel;
 
 	hwc = kzalloc(sizeof(*hwc), GFP_KERNEL);
 	if (!hwc)
 		return NULL;
 
-	hwc->reg = cg->regs + 0x20 * idx;
+	if (cg->info.flags & CG_VER3)
+		hwc->reg = cg->regs + 0x70000 + 0x20 * idx;
+	else
+		hwc->reg = cg->regs + 0x20 * idx;
+
 	hwc->info = cg->info.cmux_groups[cg->info.cmux_to_group[idx]];
 
 	/*
@@ -783,8 +790,8 @@ static struct clk * __init create_one_cm
 		return NULL;
 	}
 
-	pct80_rate = clk_get_rate(div->clk);
-	pct80_rate *= 8;
+	max_rate = clk_get_rate(div->clk);
+	pct80_rate = max_rate * 8;
 	do_div(pct80_rate, 10);
 
 	plat_rate = clk_get_rate(cg->pll[PLATFORM_PLL].div[PLL_DIV1].clk);
@@ -794,7 +801,7 @@ static struct clk * __init create_one_cm
 	else
 		min_rate = plat_rate / 2;
 
-	return create_mux_common(cg, hwc, &cmux_ops, min_rate,
+	return create_mux_common(cg, hwc, &cmux_ops, min_rate, max_rate,
 				 pct80_rate, "cg-cmux%d", idx);
 }
 
@@ -809,7 +816,7 @@ static struct clk * __init create_one_hw
 	hwc->reg = cg->regs + 0x20 * idx + 0x10;
 	hwc->info = cg->info.hwaccel[idx];
 
-	return create_mux_common(cg, hwc, &hwaccel_ops, 0, 0,
+	return create_mux_common(cg, hwc, &hwaccel_ops, 0, ULONG_MAX, 0,
 				 "cg-hwaccel%d", idx);
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/clk/clk-wm831x.c linux-libre-4.4.107-gnu/drivers/clk/clk-wm831x.c
--- linux-libre-4.4-gnu/drivers/clk/clk-wm831x.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/clk/clk-wm831x.c	2017-12-20 04:05:01.000000000 -0500
@@ -247,7 +247,7 @@ static int wm831x_clkout_is_prepared(str
 	if (ret < 0) {
 		dev_err(wm831x->dev, "Unable to read CLOCK_CONTROL_1: %d\n",
 			ret);
-		return true;
+		return false;
 	}
 
 	return (ret & WM831X_CLKOUT_ENA) != 0;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/clk/clk-xgene.c linux-libre-4.4.107-gnu/drivers/clk/clk-xgene.c
--- linux-libre-4.4-gnu/drivers/clk/clk-xgene.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/clk/clk-xgene.c	2017-12-20 04:05:01.000000000 -0500
@@ -351,7 +351,8 @@ static int xgene_clk_set_rate(struct clk
 		/* Set new divider */
 		data = xgene_clk_read(pclk->param.divider_reg +
 				pclk->param.reg_divider_offset);
-		data &= ~((1 << pclk->param.reg_divider_width) - 1);
+		data &= ~(((1 << pclk->param.reg_divider_width) - 1)
+				<< pclk->param.reg_divider_shift);
 		data |= divider;
 		xgene_clk_write(data, pclk->param.divider_reg +
 					pclk->param.reg_divider_offset);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/clk/imx/clk-imx31.c linux-libre-4.4.107-gnu/drivers/clk/imx/clk-imx31.c
--- linux-libre-4.4-gnu/drivers/clk/imx/clk-imx31.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/clk/imx/clk-imx31.c	2017-12-20 04:05:01.000000000 -0500
@@ -157,10 +157,8 @@ static void __init _mx31_clocks_init(uns
 	}
 }
 
-int __init mx31_clocks_init(void)
+int __init mx31_clocks_init(unsigned long fref)
 {
-	u32 fref = 26000000; /* default */
-
 	_mx31_clocks_init(fref);
 
 	clk_register_clkdev(clk[gpt_gate], "per", "imx-gpt.0");
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/clk/imx/clk-imx35.c linux-libre-4.4.107-gnu/drivers/clk/imx/clk-imx35.c
--- linux-libre-4.4-gnu/drivers/clk/imx/clk-imx35.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/clk/imx/clk-imx35.c	2017-12-20 04:05:01.000000000 -0500
@@ -66,7 +66,7 @@ static const char *std_sel[] = {"ppll",
 static const char *ipg_per_sel[] = {"ahb_per_div", "arm_per_div"};
 
 enum mx35_clks {
-	ckih, ckil, mpll, ppll, mpll_075, arm, hsp, hsp_div, hsp_sel, ahb, ipg,
+	ckih, mpll, ppll, mpll_075, arm, hsp, hsp_div, hsp_sel, ahb, ipg,
 	arm_per_div, ahb_per_div, ipg_per, uart_sel, uart_div, esdhc_sel,
 	esdhc1_div, esdhc2_div, esdhc3_div, spdif_sel, spdif_div_pre,
 	spdif_div_post, ssi_sel, ssi1_div_pre, ssi1_div_post, ssi2_div_pre,
@@ -79,7 +79,7 @@ enum mx35_clks {
 	rtc_gate, rtic_gate, scc_gate, sdma_gate, spba_gate, spdif_gate,
 	ssi1_gate, ssi2_gate, uart1_gate, uart2_gate, uart3_gate, usbotg_gate,
 	wdog_gate, max_gate, admux_gate, csi_gate, csi_div, csi_sel, iim_gate,
-	gpu2d_gate, clk_max
+	gpu2d_gate, ckil, clk_max
 };
 
 static struct clk *clk[clk_max];
@@ -115,7 +115,7 @@ static void __init _mx35_clocks_init(voi
 	}
 
 	clk[ckih] = imx_clk_fixed("ckih", 24000000);
-	clk[ckil] = imx_clk_fixed("ckih", 32768);
+	clk[ckil] = imx_clk_fixed("ckil", 32768);
 	clk[mpll] = imx_clk_pllv1(IMX_PLLV1_IMX35, "mpll", "ckih", base + MX35_CCM_MPCTL);
 	clk[ppll] = imx_clk_pllv1(IMX_PLLV1_IMX35, "ppll", "ckih", base + MX35_CCM_PPCTL);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/clk/imx/clk-imx6q.c linux-libre-4.4.107-gnu/drivers/clk/imx/clk-imx6q.c
--- linux-libre-4.4-gnu/drivers/clk/imx/clk-imx6q.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/clk/imx/clk-imx6q.c	2017-12-20 04:05:01.000000000 -0500
@@ -419,7 +419,7 @@ static void __init imx6q_clocks_init(str
 		clk[IMX6QDL_CLK_GPU2D_CORE] = imx_clk_gate2("gpu2d_core", "gpu2d_core_podf", base + 0x6c, 24);
 	clk[IMX6QDL_CLK_GPU3D_CORE]   = imx_clk_gate2("gpu3d_core",    "gpu3d_core_podf",   base + 0x6c, 26);
 	clk[IMX6QDL_CLK_HDMI_IAHB]    = imx_clk_gate2("hdmi_iahb",     "ahb",               base + 0x70, 0);
-	clk[IMX6QDL_CLK_HDMI_ISFR]    = imx_clk_gate2("hdmi_isfr",     "video_27m",         base + 0x70, 4);
+	clk[IMX6QDL_CLK_HDMI_ISFR]    = imx_clk_gate2("hdmi_isfr",     "mipi_core_cfg",     base + 0x70, 4);
 	clk[IMX6QDL_CLK_I2C1]         = imx_clk_gate2("i2c1",          "ipg_per",           base + 0x70, 6);
 	clk[IMX6QDL_CLK_I2C2]         = imx_clk_gate2("i2c2",          "ipg_per",           base + 0x70, 8);
 	clk[IMX6QDL_CLK_I2C3]         = imx_clk_gate2("i2c3",          "ipg_per",           base + 0x70, 10);
@@ -550,6 +550,24 @@ static void __init imx6q_clocks_init(str
 	if (IS_ENABLED(CONFIG_PCI_IMX6))
 		clk_set_parent(clk[IMX6QDL_CLK_LVDS1_SEL], clk[IMX6QDL_CLK_SATA_REF_100M]);
 
+	/*
+	 * Initialize the GPU clock muxes, so that the maximum specified clock
+	 * rates for the respective SoC are not exceeded.
+	 */
+	if (clk_on_imx6dl()) {
+		clk_set_parent(clk[IMX6QDL_CLK_GPU3D_CORE_SEL],
+			       clk[IMX6QDL_CLK_PLL2_PFD1_594M]);
+		clk_set_parent(clk[IMX6QDL_CLK_GPU2D_CORE_SEL],
+			       clk[IMX6QDL_CLK_PLL2_PFD1_594M]);
+	} else if (clk_on_imx6q()) {
+		clk_set_parent(clk[IMX6QDL_CLK_GPU3D_CORE_SEL],
+			       clk[IMX6QDL_CLK_MMDC_CH0_AXI]);
+		clk_set_parent(clk[IMX6QDL_CLK_GPU3D_SHADER_SEL],
+			       clk[IMX6QDL_CLK_PLL2_PFD1_594M]);
+		clk_set_parent(clk[IMX6QDL_CLK_GPU2D_CORE_SEL],
+			       clk[IMX6QDL_CLK_PLL3_USB_OTG]);
+	}
+
 	imx_register_uart_clocks(uart_clks);
 }
 CLK_OF_DECLARE(imx6q, "fsl,imx6q-ccm", imx6q_clocks_init);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/clk/Makefile linux-libre-4.4.107-gnu/drivers/clk/Makefile
--- linux-libre-4.4-gnu/drivers/clk/Makefile	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/clk/Makefile	2017-12-20 04:05:01.000000000 -0500
@@ -78,7 +78,9 @@ obj-$(CONFIG_ARCH_TEGRA)		+= tegra/
 obj-$(CONFIG_ARCH_OMAP2PLUS)		+= ti/
 obj-$(CONFIG_ARCH_U8500)		+= ux500/
 obj-$(CONFIG_COMMON_CLK_VERSATILE)	+= versatile/
+ifeq ($(CONFIG_COMMON_CLK), y)
 obj-$(CONFIG_X86)			+= x86/
+endif
 obj-$(CONFIG_ARCH_ZX)			+= zte/
 obj-$(CONFIG_ARCH_ZYNQ)			+= zynq/
 obj-$(CONFIG_H8300)		+= h8300/
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/clk/mediatek/clk-mtk.h linux-libre-4.4.107-gnu/drivers/clk/mediatek/clk-mtk.h
--- linux-libre-4.4-gnu/drivers/clk/mediatek/clk-mtk.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/clk/mediatek/clk-mtk.h	2017-12-20 04:05:01.000000000 -0500
@@ -174,6 +174,7 @@ struct mtk_pll_data {
 	uint32_t pcw_reg;
 	int pcw_shift;
 	const struct mtk_pll_div_table *div_table;
+	const char *parent_name;
 };
 
 void mtk_clk_register_plls(struct device_node *node,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/clk/mediatek/clk-pll.c linux-libre-4.4.107-gnu/drivers/clk/mediatek/clk-pll.c
--- linux-libre-4.4-gnu/drivers/clk/mediatek/clk-pll.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/clk/mediatek/clk-pll.c	2017-12-20 04:05:01.000000000 -0500
@@ -302,7 +302,10 @@ static struct clk *mtk_clk_register_pll(
 
 	init.name = data->name;
 	init.ops = &mtk_pll_ops;
-	init.parent_names = &parent_name;
+	if (data->parent_name)
+		init.parent_names = &data->parent_name;
+	else
+		init.parent_names = &parent_name;
 	init.num_parents = 1;
 
 	clk = clk_register(NULL, &pll->hw);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/clk/meson/clkc.c linux-libre-4.4.107-gnu/drivers/clk/meson/clkc.c
--- linux-libre-4.4-gnu/drivers/clk/meson/clkc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/clk/meson/clkc.c	2017-12-20 04:05:01.000000000 -0500
@@ -198,7 +198,7 @@ meson_clk_register_fixed_rate(const stru
 }
 
 void __init meson_clk_register_clks(const struct clk_conf *clk_confs,
-				    size_t nr_confs,
+				    unsigned int nr_confs,
 				    void __iomem *clk_base)
 {
 	unsigned int i;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/clk/mmp/clk-of-mmp2.c linux-libre-4.4.107-gnu/drivers/clk/mmp/clk-of-mmp2.c
--- linux-libre-4.4-gnu/drivers/clk/mmp/clk-of-mmp2.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/clk/mmp/clk-of-mmp2.c	2017-12-20 04:05:01.000000000 -0500
@@ -313,7 +313,7 @@ static void __init mmp2_clk_init(struct
 	}
 
 	pxa_unit->apmu_base = of_iomap(np, 1);
-	if (!pxa_unit->mpmu_base) {
+	if (!pxa_unit->apmu_base) {
 		pr_err("failed to map apmu registers\n");
 		return;
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/clk/mmp/clk-of-pxa168.c linux-libre-4.4.107-gnu/drivers/clk/mmp/clk-of-pxa168.c
--- linux-libre-4.4-gnu/drivers/clk/mmp/clk-of-pxa168.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/clk/mmp/clk-of-pxa168.c	2017-12-20 04:05:01.000000000 -0500
@@ -262,7 +262,7 @@ static void __init pxa168_clk_init(struc
 	}
 
 	pxa_unit->apmu_base = of_iomap(np, 1);
-	if (!pxa_unit->mpmu_base) {
+	if (!pxa_unit->apmu_base) {
 		pr_err("failed to map apmu registers\n");
 		return;
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/clk/mmp/clk-of-pxa910.c linux-libre-4.4.107-gnu/drivers/clk/mmp/clk-of-pxa910.c
--- linux-libre-4.4-gnu/drivers/clk/mmp/clk-of-pxa910.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/clk/mmp/clk-of-pxa910.c	2017-12-20 04:05:01.000000000 -0500
@@ -282,7 +282,7 @@ static void __init pxa910_clk_init(struc
 	}
 
 	pxa_unit->apmu_base = of_iomap(np, 1);
-	if (!pxa_unit->mpmu_base) {
+	if (!pxa_unit->apmu_base) {
 		pr_err("failed to map apmu registers\n");
 		return;
 	}
@@ -294,7 +294,7 @@ static void __init pxa910_clk_init(struc
 	}
 
 	pxa_unit->apbcp_base = of_iomap(np, 3);
-	if (!pxa_unit->mpmu_base) {
+	if (!pxa_unit->apbcp_base) {
 		pr_err("failed to map apbcp registers\n");
 		return;
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/clk/nxp/clk-lpc18xx-ccu.c linux-libre-4.4.107-gnu/drivers/clk/nxp/clk-lpc18xx-ccu.c
--- linux-libre-4.4-gnu/drivers/clk/nxp/clk-lpc18xx-ccu.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/clk/nxp/clk-lpc18xx-ccu.c	2017-12-20 04:05:01.000000000 -0500
@@ -222,7 +222,7 @@ static void lpc18xx_ccu_register_branch_
 		div->width = 1;
 
 		div_hw = &div->hw;
-		div_ops = &clk_divider_ops;
+		div_ops = &clk_divider_ro_ops;
 	}
 
 	branch->gate.reg = branch->offset + reg_base;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/clk/qcom/gcc-msm8916.c linux-libre-4.4.107-gnu/drivers/clk/qcom/gcc-msm8916.c
--- linux-libre-4.4-gnu/drivers/clk/qcom/gcc-msm8916.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/clk/qcom/gcc-msm8916.c	2017-12-20 04:05:01.000000000 -0500
@@ -2346,6 +2346,7 @@ static struct clk_branch gcc_crypto_ahb_
 				"pcnoc_bfdcd_clk_src",
 			},
 			.num_parents = 1,
+			.flags = CLK_SET_RATE_PARENT,
 			.ops = &clk_branch2_ops,
 		},
 	},
@@ -2381,6 +2382,7 @@ static struct clk_branch gcc_crypto_clk
 				"crypto_clk_src",
 			},
 			.num_parents = 1,
+			.flags = CLK_SET_RATE_PARENT,
 			.ops = &clk_branch2_ops,
 		},
 	},
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/clk/qcom/gcc-msm8960.c linux-libre-4.4.107-gnu/drivers/clk/qcom/gcc-msm8960.c
--- linux-libre-4.4-gnu/drivers/clk/qcom/gcc-msm8960.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/clk/qcom/gcc-msm8960.c	2017-12-20 04:05:01.000000000 -0500
@@ -2753,7 +2753,7 @@ static struct clk_rcg ce3_src = {
 	},
 	.freq_tbl = clk_tbl_ce3,
 	.clkr = {
-		.enable_reg = 0x2c08,
+		.enable_reg = 0x36c0,
 		.enable_mask = BIT(7),
 		.hw.init = &(struct clk_init_data){
 			.name = "ce3_src",
@@ -2769,7 +2769,7 @@ static struct clk_branch ce3_core_clk =
 	.halt_reg = 0x2fdc,
 	.halt_bit = 5,
 	.clkr = {
-		.enable_reg = 0x36c4,
+		.enable_reg = 0x36cc,
 		.enable_mask = BIT(4),
 		.hw.init = &(struct clk_init_data){
 			.name = "ce3_core_clk",
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/clk/rockchip/clk.c linux-libre-4.4.107-gnu/drivers/clk/rockchip/clk.c
--- linux-libre-4.4-gnu/drivers/clk/rockchip/clk.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/clk/rockchip/clk.c	2017-12-20 04:05:01.000000000 -0500
@@ -70,7 +70,7 @@ static struct clk *rockchip_clk_register
 	if (gate_offset >= 0) {
 		gate = kzalloc(sizeof(*gate), GFP_KERNEL);
 		if (!gate)
-			return ERR_PTR(-ENOMEM);
+			goto err_gate;
 
 		gate->flags = gate_flags;
 		gate->reg = base + gate_offset;
@@ -82,7 +82,7 @@ static struct clk *rockchip_clk_register
 	if (div_width > 0) {
 		div = kzalloc(sizeof(*div), GFP_KERNEL);
 		if (!div)
-			return ERR_PTR(-ENOMEM);
+			goto err_div;
 
 		div->flags = div_flags;
 		div->reg = base + muxdiv_offset;
@@ -90,7 +90,9 @@ static struct clk *rockchip_clk_register
 		div->width = div_width;
 		div->lock = lock;
 		div->table = div_table;
-		div_ops = &clk_divider_ops;
+		div_ops = (div_flags & CLK_DIVIDER_READ_ONLY)
+						? &clk_divider_ro_ops
+						: &clk_divider_ops;
 	}
 
 	clk = clk_register_composite(NULL, name, parent_names, num_parents,
@@ -100,6 +102,11 @@ static struct clk *rockchip_clk_register
 				     flags);
 
 	return clk;
+err_div:
+	kfree(gate);
+err_gate:
+	kfree(mux);
+	return ERR_PTR(-ENOMEM);
 }
 
 static struct clk *rockchip_clk_register_frac_branch(const char *name,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/clk/rockchip/clk-mmc-phase.c linux-libre-4.4.107-gnu/drivers/clk/rockchip/clk-mmc-phase.c
--- linux-libre-4.4-gnu/drivers/clk/rockchip/clk-mmc-phase.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/clk/rockchip/clk-mmc-phase.c	2017-12-20 04:05:01.000000000 -0500
@@ -153,6 +153,7 @@ struct clk *rockchip_clk_register_mmc(co
 		return NULL;
 
 	init.name = name;
+	init.flags = 0;
 	init.num_parents = num_parents;
 	init.parent_names = parent_names;
 	init.ops = &rockchip_mmc_clk_ops;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/clk/rockchip/clk-rk3188.c linux-libre-4.4.107-gnu/drivers/clk/rockchip/clk-rk3188.c
--- linux-libre-4.4-gnu/drivers/clk/rockchip/clk-rk3188.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/clk/rockchip/clk-rk3188.c	2017-12-20 04:05:01.000000000 -0500
@@ -718,6 +718,7 @@ static const char *const rk3188_critical
 	"hclk_peri",
 	"pclk_cpu",
 	"pclk_peri",
+	"hclk_cpubus"
 };
 
 static void __init rk3188_common_clk_init(struct device_node *np)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/clk/rockchip/clk-rk3368.c linux-libre-4.4.107-gnu/drivers/clk/rockchip/clk-rk3368.c
--- linux-libre-4.4-gnu/drivers/clk/rockchip/clk-rk3368.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/clk/rockchip/clk-rk3368.c	2017-12-20 04:05:01.000000000 -0500
@@ -165,7 +165,7 @@ static const struct rockchip_cpuclk_reg_
 	.core_reg = RK3368_CLKSEL_CON(0),
 	.div_core_shift = 0,
 	.div_core_mask = 0x1f,
-	.mux_core_shift = 15,
+	.mux_core_shift = 7,
 };
 
 static const struct rockchip_cpuclk_reg_data rk3368_cpuclkl_data = {
@@ -218,29 +218,29 @@ static const struct rockchip_cpuclk_reg_
 	}
 
 static struct rockchip_cpuclk_rate_table rk3368_cpuclkb_rates[] __initdata = {
-	RK3368_CPUCLKB_RATE(1512000000, 2, 6, 6),
-	RK3368_CPUCLKB_RATE(1488000000, 2, 5, 5),
-	RK3368_CPUCLKB_RATE(1416000000, 2, 5, 5),
-	RK3368_CPUCLKB_RATE(1200000000, 2, 4, 4),
-	RK3368_CPUCLKB_RATE(1008000000, 2, 4, 4),
-	RK3368_CPUCLKB_RATE( 816000000, 2, 3, 3),
-	RK3368_CPUCLKB_RATE( 696000000, 2, 3, 3),
-	RK3368_CPUCLKB_RATE( 600000000, 2, 2, 2),
-	RK3368_CPUCLKB_RATE( 408000000, 2, 2, 2),
-	RK3368_CPUCLKB_RATE( 312000000, 2, 2, 2),
+	RK3368_CPUCLKB_RATE(1512000000, 1, 5, 5),
+	RK3368_CPUCLKB_RATE(1488000000, 1, 4, 4),
+	RK3368_CPUCLKB_RATE(1416000000, 1, 4, 4),
+	RK3368_CPUCLKB_RATE(1200000000, 1, 3, 3),
+	RK3368_CPUCLKB_RATE(1008000000, 1, 3, 3),
+	RK3368_CPUCLKB_RATE( 816000000, 1, 2, 2),
+	RK3368_CPUCLKB_RATE( 696000000, 1, 2, 2),
+	RK3368_CPUCLKB_RATE( 600000000, 1, 1, 1),
+	RK3368_CPUCLKB_RATE( 408000000, 1, 1, 1),
+	RK3368_CPUCLKB_RATE( 312000000, 1, 1, 1),
 };
 
 static struct rockchip_cpuclk_rate_table rk3368_cpuclkl_rates[] __initdata = {
-	RK3368_CPUCLKL_RATE(1512000000, 2, 7, 7),
-	RK3368_CPUCLKL_RATE(1488000000, 2, 6, 6),
-	RK3368_CPUCLKL_RATE(1416000000, 2, 6, 6),
-	RK3368_CPUCLKL_RATE(1200000000, 2, 5, 5),
-	RK3368_CPUCLKL_RATE(1008000000, 2, 5, 5),
-	RK3368_CPUCLKL_RATE( 816000000, 2, 4, 4),
-	RK3368_CPUCLKL_RATE( 696000000, 2, 3, 3),
-	RK3368_CPUCLKL_RATE( 600000000, 2, 3, 3),
-	RK3368_CPUCLKL_RATE( 408000000, 2, 2, 2),
-	RK3368_CPUCLKL_RATE( 312000000, 2, 2, 2),
+	RK3368_CPUCLKL_RATE(1512000000, 1, 6, 6),
+	RK3368_CPUCLKL_RATE(1488000000, 1, 5, 5),
+	RK3368_CPUCLKL_RATE(1416000000, 1, 5, 5),
+	RK3368_CPUCLKL_RATE(1200000000, 1, 4, 4),
+	RK3368_CPUCLKL_RATE(1008000000, 1, 4, 4),
+	RK3368_CPUCLKL_RATE( 816000000, 1, 3, 3),
+	RK3368_CPUCLKL_RATE( 696000000, 1, 2, 2),
+	RK3368_CPUCLKL_RATE( 600000000, 1, 2, 2),
+	RK3368_CPUCLKL_RATE( 408000000, 1, 1, 1),
+	RK3368_CPUCLKL_RATE( 312000000, 1, 1, 1),
 };
 
 static struct rockchip_clk_branch rk3368_clk_branches[] __initdata = {
@@ -384,10 +384,10 @@ static struct rockchip_clk_branch rk3368
 	 * Clock-Architecture Diagram 3
 	 */
 
-	COMPOSITE(0, "aclk_vepu", mux_pll_src_cpll_gpll_usb_p, 0,
+	COMPOSITE(0, "aclk_vepu", mux_pll_src_cpll_gpll_npll_usb_p, 0,
 			RK3368_CLKSEL_CON(15), 6, 2, MFLAGS, 0, 5, DFLAGS,
 			RK3368_CLKGATE_CON(4), 6, GFLAGS),
-	COMPOSITE(0, "aclk_vdpu", mux_pll_src_cpll_gpll_usb_p, 0,
+	COMPOSITE(0, "aclk_vdpu", mux_pll_src_cpll_gpll_npll_usb_p, 0,
 			RK3368_CLKSEL_CON(15), 14, 2, MFLAGS, 8, 5, DFLAGS,
 			RK3368_CLKGATE_CON(4), 7, GFLAGS),
 
@@ -442,7 +442,7 @@ static struct rockchip_clk_branch rk3368
 	GATE(SCLK_HDMI_HDCP, "sclk_hdmi_hdcp", "xin24m", 0,
 			RK3368_CLKGATE_CON(4), 13, GFLAGS),
 	GATE(SCLK_HDMI_CEC, "sclk_hdmi_cec", "xin32k", 0,
-			RK3368_CLKGATE_CON(5), 12, GFLAGS),
+			RK3368_CLKGATE_CON(4), 12, GFLAGS),
 
 	COMPOSITE_NODIV(0, "vip_src", mux_pll_src_cpll_gpll_p, 0,
 			RK3368_CLKSEL_CON(21), 15, 1, MFLAGS,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/clk/samsung/clk-cpu.c linux-libre-4.4.107-gnu/drivers/clk/samsung/clk-cpu.c
--- linux-libre-4.4-gnu/drivers/clk/samsung/clk-cpu.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/clk/samsung/clk-cpu.c	2017-12-20 04:05:01.000000000 -0500
@@ -148,6 +148,7 @@ static int exynos_cpuclk_pre_rate_change
 	unsigned long alt_prate = clk_get_rate(cpuclk->alt_parent);
 	unsigned long alt_div = 0, alt_div_mask = DIV_MASK;
 	unsigned long div0, div1 = 0, mux_reg;
+	unsigned long flags;
 
 	/* find out the divider values to use for clock data */
 	while ((cfg_data->prate * 1000) != ndata->new_rate) {
@@ -156,7 +157,7 @@ static int exynos_cpuclk_pre_rate_change
 		cfg_data++;
 	}
 
-	spin_lock(cpuclk->lock);
+	spin_lock_irqsave(cpuclk->lock, flags);
 
 	/*
 	 * For the selected PLL clock frequency, get the pre-defined divider
@@ -212,7 +213,7 @@ static int exynos_cpuclk_pre_rate_change
 				DIV_MASK_ALL);
 	}
 
-	spin_unlock(cpuclk->lock);
+	spin_unlock_irqrestore(cpuclk->lock, flags);
 	return 0;
 }
 
@@ -223,6 +224,7 @@ static int exynos_cpuclk_post_rate_chang
 	const struct exynos_cpuclk_cfg_data *cfg_data = cpuclk->cfg;
 	unsigned long div = 0, div_mask = DIV_MASK;
 	unsigned long mux_reg;
+	unsigned long flags;
 
 	/* find out the divider values to use for clock data */
 	if (cpuclk->flags & CLK_CPU_NEEDS_DEBUG_ALT_DIV) {
@@ -233,7 +235,7 @@ static int exynos_cpuclk_post_rate_chang
 		}
 	}
 
-	spin_lock(cpuclk->lock);
+	spin_lock_irqsave(cpuclk->lock, flags);
 
 	/* select mout_apll as the alternate parent */
 	mux_reg = readl(base + E4210_SRC_CPU);
@@ -246,7 +248,7 @@ static int exynos_cpuclk_post_rate_chang
 	}
 
 	exynos_set_safe_div(base, div, div_mask);
-	spin_unlock(cpuclk->lock);
+	spin_unlock_irqrestore(cpuclk->lock, flags);
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/clk/sunxi/clk-simple-gates.c linux-libre-4.4.107-gnu/drivers/clk/sunxi/clk-simple-gates.c
--- linux-libre-4.4-gnu/drivers/clk/sunxi/clk-simple-gates.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/clk/sunxi/clk-simple-gates.c	2017-12-20 04:05:01.000000000 -0500
@@ -98,6 +98,8 @@ static void __init sunxi_simple_gates_in
 	sunxi_simple_gates_setup(node, NULL, 0);
 }
 
+CLK_OF_DECLARE(sun4i_a10_gates, "allwinner,sun4i-a10-gates-clk",
+	       sunxi_simple_gates_init);
 CLK_OF_DECLARE(sun4i_a10_apb0, "allwinner,sun4i-a10-apb0-gates-clk",
 	       sunxi_simple_gates_init);
 CLK_OF_DECLARE(sun4i_a10_apb1, "allwinner,sun4i-a10-apb1-gates-clk",
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/clk/tegra/clk-tegra30.c linux-libre-4.4.107-gnu/drivers/clk/tegra/clk-tegra30.c
--- linux-libre-4.4-gnu/drivers/clk/tegra/clk-tegra30.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/clk/tegra/clk-tegra30.c	2017-12-20 04:05:01.000000000 -0500
@@ -1063,7 +1063,7 @@ static void __init tegra30_super_clk_ini
 	 * U71 divider of cclk_lp.
 	 */
 	clk = tegra_clk_register_divider("pll_p_out3_cclklp", "pll_p_out3",
-				clk_base + SUPER_CCLKG_DIVIDER, 0,
+				clk_base + SUPER_CCLKLP_DIVIDER, 0,
 				TEGRA_DIVIDER_INT, 16, 8, 1, NULL);
 	clk_register_clkdev(clk, "pll_p_out3_cclklp", NULL);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/clk/ti/clk-3xxx.c linux-libre-4.4.107-gnu/drivers/clk/ti/clk-3xxx.c
--- linux-libre-4.4-gnu/drivers/clk/ti/clk-3xxx.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/clk/ti/clk-3xxx.c	2017-12-20 04:05:01.000000000 -0500
@@ -22,13 +22,6 @@
 
 #include "clock.h"
 
-/*
- * DPLL5_FREQ_FOR_USBHOST: USBHOST and USBTLL are the only clocks
- * that are sourced by DPLL5, and both of these require this clock
- * to be at 120 MHz for proper operation.
- */
-#define DPLL5_FREQ_FOR_USBHOST		120000000
-
 #define OMAP3430ES2_ST_DSS_IDLE_SHIFT			1
 #define OMAP3430ES2_ST_HSOTGUSB_IDLE_SHIFT		5
 #define OMAP3430ES2_ST_SSI_IDLE_SHIFT			8
@@ -546,14 +539,21 @@ void __init omap3_clk_lock_dpll5(void)
 	struct clk *dpll5_clk;
 	struct clk *dpll5_m2_clk;
 
+	/*
+	 * Errata sprz319f advisory 2.1 documents a USB host clock drift issue
+	 * that can be worked around using specially crafted dpll5 settings
+	 * with a dpll5_m2 divider set to 8. Set the dpll5 rate to 8x the USB
+	 * host clock rate, its .set_rate handler() will detect that frequency
+	 * and use the errata settings.
+	 */
 	dpll5_clk = clk_get(NULL, "dpll5_ck");
-	clk_set_rate(dpll5_clk, DPLL5_FREQ_FOR_USBHOST);
+	clk_set_rate(dpll5_clk, OMAP3_DPLL5_FREQ_FOR_USBHOST * 8);
 	clk_prepare_enable(dpll5_clk);
 
-	/* Program dpll5_m2_clk divider for no division */
+	/* Program dpll5_m2_clk divider */
 	dpll5_m2_clk = clk_get(NULL, "dpll5_m2_ck");
 	clk_prepare_enable(dpll5_m2_clk);
-	clk_set_rate(dpll5_m2_clk, DPLL5_FREQ_FOR_USBHOST);
+	clk_set_rate(dpll5_m2_clk, OMAP3_DPLL5_FREQ_FOR_USBHOST);
 
 	clk_disable_unprepare(dpll5_m2_clk);
 	clk_disable_unprepare(dpll5_clk);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/clk/ti/clk-dra7-atl.c linux-libre-4.4.107-gnu/drivers/clk/ti/clk-dra7-atl.c
--- linux-libre-4.4-gnu/drivers/clk/ti/clk-dra7-atl.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/clk/ti/clk-dra7-atl.c	2017-12-20 04:05:01.000000000 -0500
@@ -265,7 +265,7 @@ static int of_dra7_atl_clk_probe(struct
 
 		/* Get configuration for the ATL instances */
 		snprintf(prop, sizeof(prop), "atl%u", i);
-		cfg_node = of_find_node_by_name(node, prop);
+		cfg_node = of_get_child_by_name(node, prop);
 		if (cfg_node) {
 			ret = of_property_read_u32(cfg_node, "bws",
 						   &cdesc->bws);
@@ -278,6 +278,7 @@ static int of_dra7_atl_clk_probe(struct
 				atl_write(cinfo, DRA7_ATL_AWSMUX_REG(i),
 					  cdesc->aws);
 			}
+			of_node_put(cfg_node);
 		}
 
 		cdesc->probed = true;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/clk/ti/clock.h linux-libre-4.4.107-gnu/drivers/clk/ti/clock.h
--- linux-libre-4.4-gnu/drivers/clk/ti/clock.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/clk/ti/clock.h	2017-12-20 04:05:01.000000000 -0500
@@ -257,11 +257,20 @@ long omap2_dpll_round_rate(struct clk_hw
 unsigned long omap3_clkoutx2_recalc(struct clk_hw *hw,
 				    unsigned long parent_rate);
 
+/*
+ * OMAP3_DPLL5_FREQ_FOR_USBHOST: USBHOST and USBTLL are the only clocks
+ * that are sourced by DPLL5, and both of these require this clock
+ * to be at 120 MHz for proper operation.
+ */
+#define OMAP3_DPLL5_FREQ_FOR_USBHOST	120000000
+
 unsigned long omap3_dpll_recalc(struct clk_hw *hw, unsigned long parent_rate);
 int omap3_dpll4_set_rate(struct clk_hw *clk, unsigned long rate,
 			 unsigned long parent_rate);
 int omap3_dpll4_set_rate_and_parent(struct clk_hw *hw, unsigned long rate,
 				    unsigned long parent_rate, u8 index);
+int omap3_dpll5_set_rate(struct clk_hw *hw, unsigned long rate,
+			 unsigned long parent_rate);
 void omap3_clk_lock_dpll5(void);
 
 unsigned long omap4_dpll_regm4xen_recalc(struct clk_hw *hw,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/clk/ti/dpll3xxx.c linux-libre-4.4.107-gnu/drivers/clk/ti/dpll3xxx.c
--- linux-libre-4.4-gnu/drivers/clk/ti/dpll3xxx.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/clk/ti/dpll3xxx.c	2017-12-20 04:05:01.000000000 -0500
@@ -815,3 +815,70 @@ int omap3_dpll4_set_rate_and_parent(stru
 	return omap3_noncore_dpll_set_rate_and_parent(hw, rate, parent_rate,
 						      index);
 }
+
+/* Apply DM3730 errata sprz319 advisory 2.1. */
+static bool omap3_dpll5_apply_errata(struct clk_hw *hw,
+				     unsigned long parent_rate)
+{
+	struct omap3_dpll5_settings {
+		unsigned int rate, m, n;
+	};
+
+	static const struct omap3_dpll5_settings precomputed[] = {
+		/*
+		 * From DM3730 errata advisory 2.1, table 35 and 36.
+		 * The N value is increased by 1 compared to the tables as the
+		 * errata lists register values while last_rounded_field is the
+		 * real divider value.
+		 */
+		{ 12000000,  80,  0 + 1 },
+		{ 13000000, 443,  5 + 1 },
+		{ 19200000,  50,  0 + 1 },
+		{ 26000000, 443, 11 + 1 },
+		{ 38400000,  25,  0 + 1 }
+	};
+
+	const struct omap3_dpll5_settings *d;
+	struct clk_hw_omap *clk = to_clk_hw_omap(hw);
+	struct dpll_data *dd;
+	unsigned int i;
+
+	for (i = 0; i < ARRAY_SIZE(precomputed); ++i) {
+		if (parent_rate == precomputed[i].rate)
+			break;
+	}
+
+	if (i == ARRAY_SIZE(precomputed))
+		return false;
+
+	d = &precomputed[i];
+
+	/* Update the M, N and rounded rate values and program the DPLL. */
+	dd = clk->dpll_data;
+	dd->last_rounded_m = d->m;
+	dd->last_rounded_n = d->n;
+	dd->last_rounded_rate = div_u64((u64)parent_rate * d->m, d->n);
+	omap3_noncore_dpll_program(clk, 0);
+
+	return true;
+}
+
+/**
+ * omap3_dpll5_set_rate - set rate for omap3 dpll5
+ * @hw: clock to change
+ * @rate: target rate for clock
+ * @parent_rate: rate of the parent clock
+ *
+ * Set rate for the DPLL5 clock. Apply the sprz319 advisory 2.1 on OMAP36xx if
+ * the DPLL is used for USB host (detected through the requested rate).
+ */
+int omap3_dpll5_set_rate(struct clk_hw *hw, unsigned long rate,
+			 unsigned long parent_rate)
+{
+	if (rate == OMAP3_DPLL5_FREQ_FOR_USBHOST * 8) {
+		if (omap3_dpll5_apply_errata(hw, parent_rate))
+			return 0;
+	}
+
+	return omap3_noncore_dpll_set_rate(hw, rate, parent_rate);
+}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/clk/ti/dpll.c linux-libre-4.4.107-gnu/drivers/clk/ti/dpll.c
--- linux-libre-4.4-gnu/drivers/clk/ti/dpll.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/clk/ti/dpll.c	2017-12-20 04:05:01.000000000 -0500
@@ -114,6 +114,18 @@ static const struct clk_ops omap3_dpll_c
 	.round_rate	= &omap2_dpll_round_rate,
 };
 
+static const struct clk_ops omap3_dpll5_ck_ops = {
+	.enable		= &omap3_noncore_dpll_enable,
+	.disable	= &omap3_noncore_dpll_disable,
+	.get_parent	= &omap2_init_dpll_parent,
+	.recalc_rate	= &omap3_dpll_recalc,
+	.set_rate	= &omap3_dpll5_set_rate,
+	.set_parent	= &omap3_noncore_dpll_set_parent,
+	.set_rate_and_parent	= &omap3_noncore_dpll_set_rate_and_parent,
+	.determine_rate	= &omap3_noncore_dpll_determine_rate,
+	.round_rate	= &omap2_dpll_round_rate,
+};
+
 static const struct clk_ops omap3_dpll_per_ck_ops = {
 	.enable		= &omap3_noncore_dpll_enable,
 	.disable	= &omap3_noncore_dpll_disable,
@@ -461,7 +473,12 @@ static void __init of_ti_omap3_dpll_setu
 		.modes = (1 << DPLL_LOW_POWER_BYPASS) | (1 << DPLL_LOCKED),
 	};
 
-	of_ti_dpll_setup(node, &omap3_dpll_ck_ops, &dd);
+	if ((of_machine_is_compatible("ti,omap3630") ||
+	     of_machine_is_compatible("ti,omap36xx")) &&
+	    !strcmp(node->name, "dpll5_ck"))
+		of_ti_dpll_setup(node, &omap3_dpll5_ck_ops, &dd);
+	else
+		of_ti_dpll_setup(node, &omap3_dpll_ck_ops, &dd);
 }
 CLK_OF_DECLARE(ti_omap3_dpll_clock, "ti,omap3-dpll-clock",
 	       of_ti_omap3_dpll_setup);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/clk/versatile/clk-sp810.c linux-libre-4.4.107-gnu/drivers/clk/versatile/clk-sp810.c
--- linux-libre-4.4-gnu/drivers/clk/versatile/clk-sp810.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/clk/versatile/clk-sp810.c	2017-12-20 04:05:01.000000000 -0500
@@ -92,6 +92,7 @@ static void __init clk_sp810_of_setup(st
 	int num = ARRAY_SIZE(parent_names);
 	char name[12];
 	struct clk_init_data init;
+	static int instance;
 	int i;
 	bool deprecated;
 
@@ -118,7 +119,7 @@ static void __init clk_sp810_of_setup(st
 	deprecated = !of_find_property(node, "assigned-clock-parents", NULL);
 
 	for (i = 0; i < ARRAY_SIZE(sp810->timerclken); i++) {
-		snprintf(name, ARRAY_SIZE(name), "timerclken%d", i);
+		snprintf(name, sizeof(name), "sp810_%d_%d", instance, i);
 
 		sp810->timerclken[i].sp810 = sp810;
 		sp810->timerclken[i].channel = i;
@@ -139,5 +140,6 @@ static void __init clk_sp810_of_setup(st
 	}
 
 	of_clk_add_provider(node, clk_sp810_timerclken_of_get, sp810);
+	instance++;
 }
 CLK_OF_DECLARE(sp810, "arm,sp810", clk_sp810_of_setup);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/clocksource/cs5535-clockevt.c linux-libre-4.4.107-gnu/drivers/clocksource/cs5535-clockevt.c
--- linux-libre-4.4-gnu/drivers/clocksource/cs5535-clockevt.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/clocksource/cs5535-clockevt.c	2017-12-20 04:05:01.000000000 -0500
@@ -117,7 +117,8 @@ static irqreturn_t mfgpt_tick(int irq, v
 	/* Turn off the clock (and clear the event) */
 	disable_timer(cs5535_event_clock);
 
-	if (clockevent_state_shutdown(&cs5535_clockevent))
+	if (clockevent_state_detached(&cs5535_clockevent) ||
+	    clockevent_state_shutdown(&cs5535_clockevent))
 		return IRQ_HANDLED;
 
 	/* Clear the counter */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/clocksource/exynos_mct.c linux-libre-4.4.107-gnu/drivers/clocksource/exynos_mct.c
--- linux-libre-4.4-gnu/drivers/clocksource/exynos_mct.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/clocksource/exynos_mct.c	2017-12-20 04:05:01.000000000 -0500
@@ -482,6 +482,7 @@ static void exynos4_local_timer_stop(str
 	if (mct_int_type == MCT_INT_SPI) {
 		if (evt->irq != -1)
 			disable_irq_nosync(evt->irq);
+		exynos4_mct_write(0x1, mevt->base + MCT_L_INT_CSTAT_OFFSET);
 	} else {
 		disable_percpu_irq(mct_irqs[MCT_L0_IRQ]);
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/clocksource/sun4i_timer.c linux-libre-4.4.107-gnu/drivers/clocksource/sun4i_timer.c
--- linux-libre-4.4-gnu/drivers/clocksource/sun4i_timer.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/clocksource/sun4i_timer.c	2017-12-20 04:05:01.000000000 -0500
@@ -123,12 +123,16 @@ static struct clock_event_device sun4i_c
 	.set_next_event = sun4i_clkevt_next_event,
 };
 
+static void sun4i_timer_clear_interrupt(void)
+{
+	writel(TIMER_IRQ_EN(0), timer_base + TIMER_IRQ_ST_REG);
+}
 
 static irqreturn_t sun4i_timer_interrupt(int irq, void *dev_id)
 {
 	struct clock_event_device *evt = (struct clock_event_device *)dev_id;
 
-	writel(0x1, timer_base + TIMER_IRQ_ST_REG);
+	sun4i_timer_clear_interrupt();
 	evt->event_handler(evt);
 
 	return IRQ_HANDLED;
@@ -193,6 +197,9 @@ static void __init sun4i_timer_init(stru
 	/* Make sure timer is stopped before playing with interrupts */
 	sun4i_clkevt_time_stop(0);
 
+	/* clear timer0 interrupt */
+	sun4i_timer_clear_interrupt();
+
 	sun4i_clockevent.cpumask = cpu_possible_mask;
 	sun4i_clockevent.irq = irq;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/clocksource/tcb_clksrc.c linux-libre-4.4.107-gnu/drivers/clocksource/tcb_clksrc.c
--- linux-libre-4.4-gnu/drivers/clocksource/tcb_clksrc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/clocksource/tcb_clksrc.c	2017-12-20 04:05:01.000000000 -0500
@@ -98,7 +98,8 @@ static int tc_shutdown(struct clock_even
 
 	__raw_writel(0xff, regs + ATMEL_TC_REG(2, IDR));
 	__raw_writel(ATMEL_TC_CLKDIS, regs + ATMEL_TC_REG(2, CCR));
-	clk_disable(tcd->clk);
+	if (!clockevent_state_detached(d))
+		clk_disable(tcd->clk);
 
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/clocksource/vt8500_timer.c linux-libre-4.4.107-gnu/drivers/clocksource/vt8500_timer.c
--- linux-libre-4.4-gnu/drivers/clocksource/vt8500_timer.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/clocksource/vt8500_timer.c	2017-12-20 04:05:01.000000000 -0500
@@ -50,6 +50,8 @@
 
 #define msecs_to_loops(t) (loops_per_jiffy / 1000 * HZ * t)
 
+#define MIN_OSCR_DELTA		16
+
 static void __iomem *regbase;
 
 static cycle_t vt8500_timer_read(struct clocksource *cs)
@@ -80,7 +82,7 @@ static int vt8500_timer_set_next_event(u
 		cpu_relax();
 	writel((unsigned long)alarm, regbase + TIMER_MATCH_VAL);
 
-	if ((signed)(alarm - clocksource.read(&clocksource)) <= 16)
+	if ((signed)(alarm - clocksource.read(&clocksource)) <= MIN_OSCR_DELTA)
 		return -ETIME;
 
 	writel(1, regbase + TIMER_IER_VAL);
@@ -151,7 +153,7 @@ static void __init vt8500_timer_init(str
 		pr_err("%s: setup_irq failed for %s\n", __func__,
 							clockevent.name);
 	clockevents_config_and_register(&clockevent, VT8500_TIMER_HZ,
-					4, 0xf0000000);
+					MIN_OSCR_DELTA * 2, 0xf0000000);
 }
 
 CLOCKSOURCE_OF_DECLARE(vt8500, "via,vt8500-timer", vt8500_timer_init);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/cpufreq/cpufreq.c linux-libre-4.4.107-gnu/drivers/cpufreq/cpufreq.c
--- linux-libre-4.4-gnu/drivers/cpufreq/cpufreq.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/cpufreq/cpufreq.c	2017-12-20 04:05:01.000000000 -0500
@@ -626,9 +626,11 @@ static ssize_t show_cpuinfo_cur_freq(str
 					char *buf)
 {
 	unsigned int cur_freq = __cpufreq_get(policy);
-	if (!cur_freq)
-		return sprintf(buf, "<unknown>");
-	return sprintf(buf, "%u\n", cur_freq);
+
+	if (cur_freq)
+		return sprintf(buf, "%u\n", cur_freq);
+
+	return sprintf(buf, "<unknown>\n");
 }
 
 /**
@@ -1184,6 +1186,9 @@ static int cpufreq_online(unsigned int c
 		for_each_cpu(j, policy->related_cpus)
 			per_cpu(cpufreq_cpu_data, j) = policy;
 		write_unlock_irqrestore(&cpufreq_driver_lock, flags);
+	} else {
+		policy->min = policy->user_policy.min;
+		policy->max = policy->user_policy.max;
 	}
 
 	if (cpufreq_driver->get && !cpufreq_driver->setpolicy) {
@@ -2446,6 +2451,7 @@ int cpufreq_register_driver(struct cpufr
 	if (!(cpufreq_driver->flags & CPUFREQ_STICKY) &&
 	    list_empty(&cpufreq_policy_list)) {
 		/* if all ->init() calls failed, unregister */
+		ret = -ENODEV;
 		pr_debug("%s: No CPU initialized for driver %s\n", __func__,
 			 driver_data->name);
 		goto err_if_unreg;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/cpufreq/cpufreq_conservative.c linux-libre-4.4.107-gnu/drivers/cpufreq/cpufreq_conservative.c
--- linux-libre-4.4-gnu/drivers/cpufreq/cpufreq_conservative.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/cpufreq/cpufreq_conservative.c	2017-12-20 04:05:01.000000000 -0500
@@ -212,8 +212,8 @@ static ssize_t store_down_threshold(stru
 	int ret;
 	ret = sscanf(buf, "%u", &input);
 
-	/* cannot be lower than 11 otherwise freq will not fall */
-	if (ret != 1 || input < 11 || input > 100 ||
+	/* cannot be lower than 1 otherwise freq will not fall */
+	if (ret != 1 || input < 1 || input > 100 ||
 			input >= cs_tuners->up_threshold)
 		return -EINVAL;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/cpufreq/cpufreq_governor.c linux-libre-4.4.107-gnu/drivers/cpufreq/cpufreq_governor.c
--- linux-libre-4.4-gnu/drivers/cpufreq/cpufreq_governor.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/cpufreq/cpufreq_governor.c	2017-12-20 04:05:01.000000000 -0500
@@ -356,16 +356,18 @@ static int cpufreq_governor_init(struct
 	if (!have_governor_per_policy())
 		cdata->gdbs_data = dbs_data;
 
+	policy->governor_data = dbs_data;
+
 	ret = sysfs_create_group(get_governor_parent_kobj(policy),
 				 get_sysfs_attr(dbs_data));
 	if (ret)
 		goto reset_gdbs_data;
 
-	policy->governor_data = dbs_data;
-
 	return 0;
 
 reset_gdbs_data:
+	policy->governor_data = NULL;
+
 	if (!have_governor_per_policy())
 		cdata->gdbs_data = NULL;
 	cdata->exit(dbs_data, !policy->governor->initialized);
@@ -386,16 +388,19 @@ static int cpufreq_governor_exit(struct
 	if (!cdbs->shared || cdbs->shared->policy)
 		return -EBUSY;
 
-	policy->governor_data = NULL;
 	if (!--dbs_data->usage_count) {
 		sysfs_remove_group(get_governor_parent_kobj(policy),
 				   get_sysfs_attr(dbs_data));
 
+		policy->governor_data = NULL;
+
 		if (!have_governor_per_policy())
 			cdata->gdbs_data = NULL;
 
 		cdata->exit(dbs_data, policy->governor->initialized == 1);
 		kfree(dbs_data);
+	} else {
+		policy->governor_data = NULL;
 	}
 
 	free_common_dbs_info(policy, cdata);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/cpufreq/cpufreq_userspace.c linux-libre-4.4.107-gnu/drivers/cpufreq/cpufreq_userspace.c
--- linux-libre-4.4-gnu/drivers/cpufreq/cpufreq_userspace.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/cpufreq/cpufreq_userspace.c	2017-12-20 04:05:01.000000000 -0500
@@ -17,6 +17,7 @@
 #include <linux/init.h>
 #include <linux/module.h>
 #include <linux/mutex.h>
+#include <linux/slab.h>
 
 static DEFINE_PER_CPU(unsigned int, cpu_is_managed);
 static DEFINE_MUTEX(userspace_mutex);
@@ -31,6 +32,7 @@ static DEFINE_MUTEX(userspace_mutex);
 static int cpufreq_set(struct cpufreq_policy *policy, unsigned int freq)
 {
 	int ret = -EINVAL;
+	unsigned int *setspeed = policy->governor_data;
 
 	pr_debug("cpufreq_set for cpu %u, freq %u kHz\n", policy->cpu, freq);
 
@@ -38,6 +40,8 @@ static int cpufreq_set(struct cpufreq_po
 	if (!per_cpu(cpu_is_managed, policy->cpu))
 		goto err;
 
+	*setspeed = freq;
+
 	ret = __cpufreq_driver_target(policy, freq, CPUFREQ_RELATION_L);
  err:
 	mutex_unlock(&userspace_mutex);
@@ -49,19 +53,45 @@ static ssize_t show_speed(struct cpufreq
 	return sprintf(buf, "%u\n", policy->cur);
 }
 
+static int cpufreq_userspace_policy_init(struct cpufreq_policy *policy)
+{
+	unsigned int *setspeed;
+
+	setspeed = kzalloc(sizeof(*setspeed), GFP_KERNEL);
+	if (!setspeed)
+		return -ENOMEM;
+
+	policy->governor_data = setspeed;
+	return 0;
+}
+
 static int cpufreq_governor_userspace(struct cpufreq_policy *policy,
 				   unsigned int event)
 {
+	unsigned int *setspeed = policy->governor_data;
 	unsigned int cpu = policy->cpu;
 	int rc = 0;
 
+	if (event == CPUFREQ_GOV_POLICY_INIT)
+		return cpufreq_userspace_policy_init(policy);
+
+	if (!setspeed)
+		return -EINVAL;
+
 	switch (event) {
+	case CPUFREQ_GOV_POLICY_EXIT:
+		mutex_lock(&userspace_mutex);
+		policy->governor_data = NULL;
+		kfree(setspeed);
+		mutex_unlock(&userspace_mutex);
+		break;
 	case CPUFREQ_GOV_START:
 		BUG_ON(!policy->cur);
 		pr_debug("started managing cpu %u\n", cpu);
 
 		mutex_lock(&userspace_mutex);
 		per_cpu(cpu_is_managed, cpu) = 1;
+		*setspeed = policy->cur;
 		mutex_unlock(&userspace_mutex);
 		break;
 	case CPUFREQ_GOV_STOP:
@@ -69,20 +99,23 @@ static int cpufreq_governor_userspace(st
 
 		mutex_lock(&userspace_mutex);
 		per_cpu(cpu_is_managed, cpu) = 0;
+		*setspeed = 0;
 		mutex_unlock(&userspace_mutex);
 		break;
 	case CPUFREQ_GOV_LIMITS:
 		mutex_lock(&userspace_mutex);
-		pr_debug("limit event for cpu %u: %u - %u kHz, currently %u kHz\n",
-			cpu, policy->min, policy->max,
-			policy->cur);
+		pr_debug("limit event for cpu %u: %u - %u kHz, currently %u kHz, last set to %u kHz\n",
+			cpu, policy->min, policy->max, policy->cur, *setspeed);
 
-		if (policy->max < policy->cur)
+		if (policy->max < *setspeed)
 			__cpufreq_driver_target(policy, policy->max,
 						CPUFREQ_RELATION_H);
-		else if (policy->min > policy->cur)
+		else if (policy->min > *setspeed)
 			__cpufreq_driver_target(policy, policy->min,
 						CPUFREQ_RELATION_L);
+		else
+			__cpufreq_driver_target(policy, *setspeed,
+						CPUFREQ_RELATION_L);
 		mutex_unlock(&userspace_mutex);
 		break;
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/cpufreq/intel_pstate.c linux-libre-4.4.107-gnu/drivers/cpufreq/intel_pstate.c
--- linux-libre-4.4-gnu/drivers/cpufreq/intel_pstate.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/cpufreq/intel_pstate.c	2017-12-20 04:05:01.000000000 -0500
@@ -285,14 +285,14 @@ static void intel_pstate_hwp_set(void)
 	int min, hw_min, max, hw_max, cpu, range, adj_range;
 	u64 value, cap;
 
-	rdmsrl(MSR_HWP_CAPABILITIES, cap);
-	hw_min = HWP_LOWEST_PERF(cap);
-	hw_max = HWP_HIGHEST_PERF(cap);
-	range = hw_max - hw_min;
-
 	get_online_cpus();
 
 	for_each_online_cpu(cpu) {
+		rdmsrl_on_cpu(cpu, MSR_HWP_CAPABILITIES, &cap);
+		hw_min = HWP_LOWEST_PERF(cap);
+		hw_max = HWP_HIGHEST_PERF(cap);
+		range = hw_max - hw_min;
+
 		rdmsrl_on_cpu(cpu, MSR_HWP_REQUEST, &value);
 		adj_range = limits->min_perf_pct * range / 100;
 		min = hw_min + adj_range;
@@ -662,11 +662,16 @@ static int core_get_max_pstate(void)
 			if (err)
 				goto skip_tar;
 
-			tdp_msr = MSR_CONFIG_TDP_NOMINAL + tdp_ctrl;
+			tdp_msr = MSR_CONFIG_TDP_NOMINAL + (tdp_ctrl & 0x3);
 			err = rdmsrl_safe(tdp_msr, &tdp_ratio);
 			if (err)
 				goto skip_tar;
 
+			/* For level 1 and 2, bits[23:16] contain the ratio */
+			if (tdp_ctrl)
+				tdp_ratio >>= 16;
+
+			tdp_ratio &= 0xff; /* ratios are only 8 bits long */
 			if (tdp_ratio - 1 == tar) {
 				max_pstate = tar;
 				pr_debug("max_pstate=TAC %x\n", max_pstate);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/cpufreq/Kconfig.arm linux-libre-4.4.107-gnu/drivers/cpufreq/Kconfig.arm
--- linux-libre-4.4-gnu/drivers/cpufreq/Kconfig.arm	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/cpufreq/Kconfig.arm	2017-12-20 04:05:01.000000000 -0500
@@ -241,7 +241,7 @@ config ARM_PXA2xx_CPUFREQ
 
 config ACPI_CPPC_CPUFREQ
 	tristate "CPUFreq driver based on the ACPI CPPC spec"
-	depends on ACPI
+	depends on ACPI_PROCESSOR
 	select ACPI_CPPC_LIB
 	default n
 	help
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/cpufreq/powernv-cpufreq.c linux-libre-4.4.107-gnu/drivers/cpufreq/powernv-cpufreq.c
--- linux-libre-4.4-gnu/drivers/cpufreq/powernv-cpufreq.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/cpufreq/powernv-cpufreq.c	2017-12-20 04:05:01.000000000 -0500
@@ -373,8 +373,14 @@ static int powernv_cpufreq_target_index(
 	if (unlikely(rebooting) && new_index != get_nominal_index())
 		return 0;
 
-	if (!throttled)
+	if (!throttled) {
+		/* we don't want to be preempted while
+		 * checking if the CPU frequency has been throttled
+		 */
+		preempt_disable();
 		powernv_cpufreq_throttle_check(NULL);
+		preempt_enable();
+	}
 
 	freq_data.pstate_id = powernv_freqs[new_index].driver_data;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/cpufreq/pxa2xx-cpufreq.c linux-libre-4.4.107-gnu/drivers/cpufreq/pxa2xx-cpufreq.c
--- linux-libre-4.4-gnu/drivers/cpufreq/pxa2xx-cpufreq.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/cpufreq/pxa2xx-cpufreq.c	2017-12-20 04:05:01.000000000 -0500
@@ -202,7 +202,7 @@ static void __init pxa_cpufreq_init_volt
 	}
 }
 #else
-static int pxa_cpufreq_change_voltage(struct pxa_freqs *pxa_freq)
+static int pxa_cpufreq_change_voltage(const struct pxa_freqs *pxa_freq)
 {
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/cpufreq/s3c2416-cpufreq.c linux-libre-4.4.107-gnu/drivers/cpufreq/s3c2416-cpufreq.c
--- linux-libre-4.4-gnu/drivers/cpufreq/s3c2416-cpufreq.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/cpufreq/s3c2416-cpufreq.c	2017-12-20 04:05:01.000000000 -0500
@@ -400,7 +400,6 @@ static int s3c2416_cpufreq_driver_init(s
 	rate = clk_get_rate(s3c_freq->hclk);
 	if (rate < 133 * 1000 * 1000) {
 		pr_err("cpufreq: HCLK not at 133MHz\n");
-		clk_put(s3c_freq->hclk);
 		ret = -EINVAL;
 		goto err_armclk;
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/cpuidle/cpuidle-arm.c linux-libre-4.4.107-gnu/drivers/cpuidle/cpuidle-arm.c
--- linux-libre-4.4-gnu/drivers/cpuidle/cpuidle-arm.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/cpuidle/cpuidle-arm.c	2017-12-20 04:05:01.000000000 -0500
@@ -50,7 +50,7 @@ static int arm_enter_idle_state(struct c
 		 * call the CPU ops suspend protocol with idle index as a
 		 * parameter.
 		 */
-		arm_cpuidle_suspend(idx);
+		ret = arm_cpuidle_suspend(idx);
 
 		cpu_pm_exit();
 	}
@@ -135,6 +135,7 @@ static int __init arm_idle_init(void)
 		dev = kzalloc(sizeof(*dev), GFP_KERNEL);
 		if (!dev) {
 			pr_err("Failed to allocate cpuidle device\n");
+			ret = -ENOMEM;
 			goto out_fail;
 		}
 		dev->cpu = cpu;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/cpuidle/cpuidle.c linux-libre-4.4.107-gnu/drivers/cpuidle/cpuidle.c
--- linux-libre-4.4-gnu/drivers/cpuidle/cpuidle.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/cpuidle/cpuidle.c	2017-12-20 04:05:01.000000000 -0500
@@ -214,7 +214,7 @@ int cpuidle_enter_state(struct cpuidle_d
 		tick_broadcast_exit();
 	}
 
-	if (!cpuidle_state_is_coupled(drv, entered_state))
+	if (!cpuidle_state_is_coupled(drv, index))
 		local_irq_enable();
 
 	diff = ktime_to_us(ktime_sub(time_end, time_start));
@@ -433,6 +433,8 @@ static void __cpuidle_unregister_device(
 	list_del(&dev->device_list);
 	per_cpu(cpuidle_devices, dev->cpu) = NULL;
 	module_put(drv->owner);
+
+	dev->registered = 0;
 }
 
 static void __cpuidle_device_init(struct cpuidle_device *dev)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/crypto/atmel-aes.c linux-libre-4.4.107-gnu/drivers/crypto/atmel-aes.c
--- linux-libre-4.4-gnu/drivers/crypto/atmel-aes.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/crypto/atmel-aes.c	2017-12-20 04:05:01.000000000 -0500
@@ -1396,9 +1396,9 @@ static int atmel_aes_probe(struct platfo
 	}
 
 	aes_dd->io_base = devm_ioremap_resource(&pdev->dev, aes_res);
-	if (!aes_dd->io_base) {
+	if (IS_ERR(aes_dd->io_base)) {
 		dev_err(dev, "can't ioremap\n");
-		err = -ENOMEM;
+		err = PTR_ERR(aes_dd->io_base);
 		goto res_err;
 	}
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/crypto/atmel-sha.c linux-libre-4.4.107-gnu/drivers/crypto/atmel-sha.c
--- linux-libre-4.4-gnu/drivers/crypto/atmel-sha.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/crypto/atmel-sha.c	2017-12-20 04:05:01.000000000 -0500
@@ -783,7 +783,7 @@ static void atmel_sha_finish_req(struct
 	dd->flags &= ~(SHA_FLAGS_BUSY | SHA_FLAGS_FINAL | SHA_FLAGS_CPU |
 			SHA_FLAGS_DMA_READY | SHA_FLAGS_OUTPUT_READY);
 
-	clk_disable_unprepare(dd->iclk);
+	clk_disable(dd->iclk);
 
 	if (req->base.complete)
 		req->base.complete(&req->base, err);
@@ -796,7 +796,7 @@ static int atmel_sha_hw_init(struct atme
 {
 	int err;
 
-	err = clk_prepare_enable(dd->iclk);
+	err = clk_enable(dd->iclk);
 	if (err)
 		return err;
 
@@ -823,7 +823,7 @@ static void atmel_sha_hw_version_init(st
 	dev_info(dd->dev,
 			"version: 0x%x\n", dd->hw_version);
 
-	clk_disable_unprepare(dd->iclk);
+	clk_disable(dd->iclk);
 }
 
 static int atmel_sha_handle_queue(struct atmel_sha_dev *dd,
@@ -963,7 +963,9 @@ static int atmel_sha_finup(struct ahash_
 	ctx->flags |= SHA_FLAGS_FINUP;
 
 	err1 = atmel_sha_update(req);
-	if (err1 == -EINPROGRESS || err1 == -EBUSY)
+	if (err1 == -EINPROGRESS ||
+	    (err1 == -EBUSY && (ahash_request_flags(req) &
+				CRYPTO_TFM_REQ_MAY_BACKLOG)))
 		return err1;
 
 	/*
@@ -1405,12 +1407,16 @@ static int atmel_sha_probe(struct platfo
 	}
 
 	sha_dd->io_base = devm_ioremap_resource(&pdev->dev, sha_res);
-	if (!sha_dd->io_base) {
+	if (IS_ERR(sha_dd->io_base)) {
 		dev_err(dev, "can't ioremap\n");
-		err = -ENOMEM;
+		err = PTR_ERR(sha_dd->io_base);
 		goto res_err;
 	}
 
+	err = clk_prepare(sha_dd->iclk);
+	if (err)
+		goto res_err;
+
 	atmel_sha_hw_version_init(sha_dd);
 
 	atmel_sha_get_cap(sha_dd);
@@ -1422,12 +1428,12 @@ static int atmel_sha_probe(struct platfo
 			if (IS_ERR(pdata)) {
 				dev_err(&pdev->dev, "platform data not available\n");
 				err = PTR_ERR(pdata);
-				goto res_err;
+				goto iclk_unprepare;
 			}
 		}
 		if (!pdata->dma_slave) {
 			err = -ENXIO;
-			goto res_err;
+			goto iclk_unprepare;
 		}
 		err = atmel_sha_dma_init(sha_dd, pdata);
 		if (err)
@@ -1458,6 +1464,8 @@ err_algs:
 	if (sha_dd->caps.has_dma)
 		atmel_sha_dma_cleanup(sha_dd);
 err_sha_dma:
+iclk_unprepare:
+	clk_unprepare(sha_dd->iclk);
 res_err:
 	tasklet_kill(&sha_dd->done_task);
 sha_dd_err:
@@ -1484,12 +1492,7 @@ static int atmel_sha_remove(struct platf
 	if (sha_dd->caps.has_dma)
 		atmel_sha_dma_cleanup(sha_dd);
 
-	iounmap(sha_dd->io_base);
-
-	clk_put(sha_dd->iclk);
-
-	if (sha_dd->irq >= 0)
-		free_irq(sha_dd->irq, sha_dd);
+	clk_unprepare(sha_dd->iclk);
 
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/crypto/atmel-tdes.c linux-libre-4.4.107-gnu/drivers/crypto/atmel-tdes.c
--- linux-libre-4.4-gnu/drivers/crypto/atmel-tdes.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/crypto/atmel-tdes.c	2017-12-20 04:05:01.000000000 -0500
@@ -1417,9 +1417,9 @@ static int atmel_tdes_probe(struct platf
 	}
 
 	tdes_dd->io_base = devm_ioremap_resource(&pdev->dev, tdes_res);
-	if (!tdes_dd->io_base) {
+	if (IS_ERR(tdes_dd->io_base)) {
 		dev_err(dev, "can't ioremap\n");
-		err = -ENOMEM;
+		err = PTR_ERR(tdes_dd->io_base);
 		goto res_err;
 	}
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/crypto/caam/caamalg.c linux-libre-4.4.107-gnu/drivers/crypto/caam/caamalg.c
--- linux-libre-4.4-gnu/drivers/crypto/caam/caamalg.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/crypto/caam/caamalg.c	2017-12-20 04:05:01.000000000 -0500
@@ -441,6 +441,9 @@ static int aead_set_sh_desc(struct crypt
 			       OP_ALG_AAI_CTR_MOD128);
 	const bool is_rfc3686 = alg->caam.rfc3686;
 
+	if (!ctx->authsize)
+		return 0;
+
 	/* NULL encryption / decryption */
 	if (!ctx->enckeylen)
 		return aead_null_set_sh_desc(aead);
@@ -553,7 +556,10 @@ skip_enc:
 
 	/* Read and write assoclen bytes */
 	append_math_add(desc, VARSEQINLEN, ZERO, REG3, CAAM_CMD_SZ);
-	append_math_add(desc, VARSEQOUTLEN, ZERO, REG3, CAAM_CMD_SZ);
+	if (alg->caam.geniv)
+		append_math_add_imm_u32(desc, VARSEQOUTLEN, REG3, IMM, ivsize);
+	else
+		append_math_add(desc, VARSEQOUTLEN, ZERO, REG3, CAAM_CMD_SZ);
 
 	/* Skip assoc data */
 	append_seq_fifo_store(desc, 0, FIFOST_TYPE_SKIP | FIFOLDST_VLF);
@@ -562,6 +568,14 @@ skip_enc:
 	append_seq_fifo_load(desc, 0, FIFOLD_CLASS_CLASS2 | FIFOLD_TYPE_MSG |
 			     KEY_VLF);
 
+	if (alg->caam.geniv) {
+		append_seq_load(desc, ivsize, LDST_CLASS_1_CCB |
+				LDST_SRCDST_BYTE_CONTEXT |
+				(ctx1_iv_off << LDST_OFFSET_SHIFT));
+		append_move(desc, MOVE_SRC_CLASS1CTX | MOVE_DEST_CLASS2INFIFO |
+			    (ctx1_iv_off << MOVE_OFFSET_SHIFT) | ivsize);
+	}
+
 	/* Load Counter into CONTEXT1 reg */
 	if (is_rfc3686)
 		append_load_imm_u32(desc, be32_to_cpu(1), LDST_IMM |
@@ -614,7 +628,7 @@ skip_enc:
 		keys_fit_inline = true;
 
 	/* aead_givencrypt shared descriptor */
-	desc = ctx->sh_desc_givenc;
+	desc = ctx->sh_desc_enc;
 
 	/* Note: Context registers are saved. */
 	init_sh_desc_key_aead(desc, ctx, keys_fit_inline, is_rfc3686);
@@ -645,13 +659,13 @@ copy_iv:
 	append_operation(desc, ctx->class2_alg_type |
 			 OP_ALG_AS_INITFINAL | OP_ALG_ENCRYPT);
 
-	/* ivsize + cryptlen = seqoutlen - authsize */
-	append_math_sub_imm_u32(desc, REG3, SEQOUTLEN, IMM, ctx->authsize);
-
 	/* Read and write assoclen bytes */
 	append_math_add(desc, VARSEQINLEN, ZERO, REG3, CAAM_CMD_SZ);
 	append_math_add(desc, VARSEQOUTLEN, ZERO, REG3, CAAM_CMD_SZ);
 
+	/* ivsize + cryptlen = seqoutlen - authsize */
+	append_math_sub_imm_u32(desc, REG3, SEQOUTLEN, IMM, ctx->authsize);
+
 	/* Skip assoc data */
 	append_seq_fifo_store(desc, 0, FIFOST_TYPE_SKIP | FIFOLDST_VLF);
 
@@ -688,7 +702,9 @@ copy_iv:
 
 	/* Will read cryptlen */
 	append_math_add(desc, VARSEQINLEN, SEQINLEN, REG0, CAAM_CMD_SZ);
-	aead_append_src_dst(desc, FIFOLD_TYPE_MSG1OUT2);
+	append_seq_fifo_load(desc, 0, FIFOLD_CLASS_BOTH | KEY_VLF |
+			     FIFOLD_TYPE_MSG1OUT2 | FIFOLD_TYPE_LASTBOTH);
+	append_seq_fifo_store(desc, 0, FIFOST_TYPE_MESSAGE_DATA | KEY_VLF);
 
 	/* Write ICV */
 	append_seq_store(desc, ctx->authsize, LDST_CLASS_2_CCB |
@@ -697,7 +713,7 @@ copy_iv:
 	ctx->sh_desc_enc_dma = dma_map_single(jrdev, desc,
 					      desc_bytes(desc),
 					      DMA_TO_DEVICE);
-	if (dma_mapping_error(jrdev, ctx->sh_desc_givenc_dma)) {
+	if (dma_mapping_error(jrdev, ctx->sh_desc_enc_dma)) {
 		dev_err(jrdev, "unable to map shared descriptor\n");
 		return -ENOMEM;
 	}
@@ -2147,7 +2163,7 @@ static void init_authenc_job(struct aead
 
 	init_aead_job(req, edesc, all_contig, encrypt);
 
-	if (ivsize && (is_rfc3686 || !(alg->caam.geniv && encrypt)))
+	if (ivsize && ((is_rfc3686 && encrypt) || !alg->caam.geniv))
 		append_load_as_imm(desc, req->iv, ivsize,
 				   LDST_CLASS_1_CCB |
 				   LDST_SRCDST_BYTE_CONTEXT |
@@ -2534,20 +2550,6 @@ static int aead_decrypt(struct aead_requ
 	return ret;
 }
 
-static int aead_givdecrypt(struct aead_request *req)
-{
-	struct crypto_aead *aead = crypto_aead_reqtfm(req);
-	unsigned int ivsize = crypto_aead_ivsize(aead);
-
-	if (req->cryptlen < ivsize)
-		return -EINVAL;
-
-	req->cryptlen -= ivsize;
-	req->assoclen += ivsize;
-
-	return aead_decrypt(req);
-}
-
 /*
  * allocate and map the ablkcipher extended descriptor for ablkcipher
  */
@@ -3207,7 +3209,7 @@ static struct caam_aead_alg driver_aeads
 			.setkey = aead_setkey,
 			.setauthsize = aead_setauthsize,
 			.encrypt = aead_encrypt,
-			.decrypt = aead_givdecrypt,
+			.decrypt = aead_decrypt,
 			.ivsize = AES_BLOCK_SIZE,
 			.maxauthsize = MD5_DIGEST_SIZE,
 		},
@@ -3253,7 +3255,7 @@ static struct caam_aead_alg driver_aeads
 			.setkey = aead_setkey,
 			.setauthsize = aead_setauthsize,
 			.encrypt = aead_encrypt,
-			.decrypt = aead_givdecrypt,
+			.decrypt = aead_decrypt,
 			.ivsize = AES_BLOCK_SIZE,
 			.maxauthsize = SHA1_DIGEST_SIZE,
 		},
@@ -3299,7 +3301,7 @@ static struct caam_aead_alg driver_aeads
 			.setkey = aead_setkey,
 			.setauthsize = aead_setauthsize,
 			.encrypt = aead_encrypt,
-			.decrypt = aead_givdecrypt,
+			.decrypt = aead_decrypt,
 			.ivsize = AES_BLOCK_SIZE,
 			.maxauthsize = SHA224_DIGEST_SIZE,
 		},
@@ -3345,7 +3347,7 @@ static struct caam_aead_alg driver_aeads
 			.setkey = aead_setkey,
 			.setauthsize = aead_setauthsize,
 			.encrypt = aead_encrypt,
-			.decrypt = aead_givdecrypt,
+			.decrypt = aead_decrypt,
 			.ivsize = AES_BLOCK_SIZE,
 			.maxauthsize = SHA256_DIGEST_SIZE,
 		},
@@ -3391,7 +3393,7 @@ static struct caam_aead_alg driver_aeads
 			.setkey = aead_setkey,
 			.setauthsize = aead_setauthsize,
 			.encrypt = aead_encrypt,
-			.decrypt = aead_givdecrypt,
+			.decrypt = aead_decrypt,
 			.ivsize = AES_BLOCK_SIZE,
 			.maxauthsize = SHA384_DIGEST_SIZE,
 		},
@@ -3437,7 +3439,7 @@ static struct caam_aead_alg driver_aeads
 			.setkey = aead_setkey,
 			.setauthsize = aead_setauthsize,
 			.encrypt = aead_encrypt,
-			.decrypt = aead_givdecrypt,
+			.decrypt = aead_decrypt,
 			.ivsize = AES_BLOCK_SIZE,
 			.maxauthsize = SHA512_DIGEST_SIZE,
 		},
@@ -3483,7 +3485,7 @@ static struct caam_aead_alg driver_aeads
 			.setkey = aead_setkey,
 			.setauthsize = aead_setauthsize,
 			.encrypt = aead_encrypt,
-			.decrypt = aead_givdecrypt,
+			.decrypt = aead_decrypt,
 			.ivsize = DES3_EDE_BLOCK_SIZE,
 			.maxauthsize = MD5_DIGEST_SIZE,
 		},
@@ -3531,7 +3533,7 @@ static struct caam_aead_alg driver_aeads
 			.setkey = aead_setkey,
 			.setauthsize = aead_setauthsize,
 			.encrypt = aead_encrypt,
-			.decrypt = aead_givdecrypt,
+			.decrypt = aead_decrypt,
 			.ivsize = DES3_EDE_BLOCK_SIZE,
 			.maxauthsize = SHA1_DIGEST_SIZE,
 		},
@@ -3579,7 +3581,7 @@ static struct caam_aead_alg driver_aeads
 			.setkey = aead_setkey,
 			.setauthsize = aead_setauthsize,
 			.encrypt = aead_encrypt,
-			.decrypt = aead_givdecrypt,
+			.decrypt = aead_decrypt,
 			.ivsize = DES3_EDE_BLOCK_SIZE,
 			.maxauthsize = SHA224_DIGEST_SIZE,
 		},
@@ -3627,7 +3629,7 @@ static struct caam_aead_alg driver_aeads
 			.setkey = aead_setkey,
 			.setauthsize = aead_setauthsize,
 			.encrypt = aead_encrypt,
-			.decrypt = aead_givdecrypt,
+			.decrypt = aead_decrypt,
 			.ivsize = DES3_EDE_BLOCK_SIZE,
 			.maxauthsize = SHA256_DIGEST_SIZE,
 		},
@@ -3675,7 +3677,7 @@ static struct caam_aead_alg driver_aeads
 			.setkey = aead_setkey,
 			.setauthsize = aead_setauthsize,
 			.encrypt = aead_encrypt,
-			.decrypt = aead_givdecrypt,
+			.decrypt = aead_decrypt,
 			.ivsize = DES3_EDE_BLOCK_SIZE,
 			.maxauthsize = SHA384_DIGEST_SIZE,
 		},
@@ -3723,7 +3725,7 @@ static struct caam_aead_alg driver_aeads
 			.setkey = aead_setkey,
 			.setauthsize = aead_setauthsize,
 			.encrypt = aead_encrypt,
-			.decrypt = aead_givdecrypt,
+			.decrypt = aead_decrypt,
 			.ivsize = DES3_EDE_BLOCK_SIZE,
 			.maxauthsize = SHA512_DIGEST_SIZE,
 		},
@@ -3769,7 +3771,7 @@ static struct caam_aead_alg driver_aeads
 			.setkey = aead_setkey,
 			.setauthsize = aead_setauthsize,
 			.encrypt = aead_encrypt,
-			.decrypt = aead_givdecrypt,
+			.decrypt = aead_decrypt,
 			.ivsize = DES_BLOCK_SIZE,
 			.maxauthsize = MD5_DIGEST_SIZE,
 		},
@@ -3815,7 +3817,7 @@ static struct caam_aead_alg driver_aeads
 			.setkey = aead_setkey,
 			.setauthsize = aead_setauthsize,
 			.encrypt = aead_encrypt,
-			.decrypt = aead_givdecrypt,
+			.decrypt = aead_decrypt,
 			.ivsize = DES_BLOCK_SIZE,
 			.maxauthsize = SHA1_DIGEST_SIZE,
 		},
@@ -3861,7 +3863,7 @@ static struct caam_aead_alg driver_aeads
 			.setkey = aead_setkey,
 			.setauthsize = aead_setauthsize,
 			.encrypt = aead_encrypt,
-			.decrypt = aead_givdecrypt,
+			.decrypt = aead_decrypt,
 			.ivsize = DES_BLOCK_SIZE,
 			.maxauthsize = SHA224_DIGEST_SIZE,
 		},
@@ -3907,7 +3909,7 @@ static struct caam_aead_alg driver_aeads
 			.setkey = aead_setkey,
 			.setauthsize = aead_setauthsize,
 			.encrypt = aead_encrypt,
-			.decrypt = aead_givdecrypt,
+			.decrypt = aead_decrypt,
 			.ivsize = DES_BLOCK_SIZE,
 			.maxauthsize = SHA256_DIGEST_SIZE,
 		},
@@ -3953,7 +3955,7 @@ static struct caam_aead_alg driver_aeads
 			.setkey = aead_setkey,
 			.setauthsize = aead_setauthsize,
 			.encrypt = aead_encrypt,
-			.decrypt = aead_givdecrypt,
+			.decrypt = aead_decrypt,
 			.ivsize = DES_BLOCK_SIZE,
 			.maxauthsize = SHA384_DIGEST_SIZE,
 		},
@@ -3999,7 +4001,7 @@ static struct caam_aead_alg driver_aeads
 			.setkey = aead_setkey,
 			.setauthsize = aead_setauthsize,
 			.encrypt = aead_encrypt,
-			.decrypt = aead_givdecrypt,
+			.decrypt = aead_decrypt,
 			.ivsize = DES_BLOCK_SIZE,
 			.maxauthsize = SHA512_DIGEST_SIZE,
 		},
@@ -4048,7 +4050,7 @@ static struct caam_aead_alg driver_aeads
 			.setkey = aead_setkey,
 			.setauthsize = aead_setauthsize,
 			.encrypt = aead_encrypt,
-			.decrypt = aead_givdecrypt,
+			.decrypt = aead_decrypt,
 			.ivsize = CTR_RFC3686_IV_SIZE,
 			.maxauthsize = MD5_DIGEST_SIZE,
 		},
@@ -4099,7 +4101,7 @@ static struct caam_aead_alg driver_aeads
 			.setkey = aead_setkey,
 			.setauthsize = aead_setauthsize,
 			.encrypt = aead_encrypt,
-			.decrypt = aead_givdecrypt,
+			.decrypt = aead_decrypt,
 			.ivsize = CTR_RFC3686_IV_SIZE,
 			.maxauthsize = SHA1_DIGEST_SIZE,
 		},
@@ -4150,7 +4152,7 @@ static struct caam_aead_alg driver_aeads
 			.setkey = aead_setkey,
 			.setauthsize = aead_setauthsize,
 			.encrypt = aead_encrypt,
-			.decrypt = aead_givdecrypt,
+			.decrypt = aead_decrypt,
 			.ivsize = CTR_RFC3686_IV_SIZE,
 			.maxauthsize = SHA224_DIGEST_SIZE,
 		},
@@ -4201,7 +4203,7 @@ static struct caam_aead_alg driver_aeads
 			.setkey = aead_setkey,
 			.setauthsize = aead_setauthsize,
 			.encrypt = aead_encrypt,
-			.decrypt = aead_givdecrypt,
+			.decrypt = aead_decrypt,
 			.ivsize = CTR_RFC3686_IV_SIZE,
 			.maxauthsize = SHA256_DIGEST_SIZE,
 		},
@@ -4252,7 +4254,7 @@ static struct caam_aead_alg driver_aeads
 			.setkey = aead_setkey,
 			.setauthsize = aead_setauthsize,
 			.encrypt = aead_encrypt,
-			.decrypt = aead_givdecrypt,
+			.decrypt = aead_decrypt,
 			.ivsize = CTR_RFC3686_IV_SIZE,
 			.maxauthsize = SHA384_DIGEST_SIZE,
 		},
@@ -4303,7 +4305,7 @@ static struct caam_aead_alg driver_aeads
 			.setkey = aead_setkey,
 			.setauthsize = aead_setauthsize,
 			.encrypt = aead_encrypt,
-			.decrypt = aead_givdecrypt,
+			.decrypt = aead_decrypt,
 			.ivsize = CTR_RFC3686_IV_SIZE,
 			.maxauthsize = SHA512_DIGEST_SIZE,
 		},
@@ -4542,6 +4544,15 @@ static int __init caam_algapi_init(void)
 		if (!aes_inst && (alg_sel == OP_ALG_ALGSEL_AES))
 				continue;
 
+		/*
+		 * Check support for AES modes not available
+		 * on LP devices.
+		 */
+		if ((cha_vid & CHA_ID_LS_AES_MASK) == CHA_ID_LS_AES_LP)
+			if ((alg->class1_alg_type & OP_ALG_AAI_MASK) ==
+			     OP_ALG_AAI_XTS)
+				continue;
+
 		t_alg = caam_alg_alloc(alg);
 		if (IS_ERR(t_alg)) {
 			err = PTR_ERR(t_alg);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/crypto/caam/caamhash.c linux-libre-4.4.107-gnu/drivers/crypto/caam/caamhash.c
--- linux-libre-4.4-gnu/drivers/crypto/caam/caamhash.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/crypto/caam/caamhash.c	2017-12-20 04:05:01.000000000 -0500
@@ -498,7 +498,7 @@ static int hash_digest_key(struct caam_h
 	ret = caam_jr_enqueue(jrdev, desc, split_key_done, &result);
 	if (!ret) {
 		/* in progress */
-		wait_for_completion_interruptible(&result.completion);
+		wait_for_completion(&result.completion);
 		ret = result.err;
 #ifdef DEBUG
 		print_hex_dump(KERN_ERR,
@@ -1873,6 +1873,7 @@ caam_hash_alloc(struct caam_hash_templat
 			 template->name);
 		snprintf(alg->cra_driver_name, CRYPTO_MAX_ALG_NAME, "%s",
 			 template->driver_name);
+		t_alg->ahash_alg.setkey = NULL;
 	}
 	alg->cra_module = THIS_MODULE;
 	alg->cra_init = caam_hash_cra_init;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/crypto/caam/ctrl.c linux-libre-4.4.107-gnu/drivers/crypto/caam/ctrl.c
--- linux-libre-4.4-gnu/drivers/crypto/caam/ctrl.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/crypto/caam/ctrl.c	2017-12-20 04:05:01.000000000 -0500
@@ -278,7 +278,8 @@ static int deinstantiate_rng(struct devi
 			/* Try to run it through DECO0 */
 			ret = run_descriptor_deco0(ctrldev, desc, &status);
 
-			if (ret || status) {
+			if (ret ||
+			    (status && status != JRSTA_SSRC_JUMP_HALT_CC)) {
 				dev_err(ctrldev,
 					"Failed to deinstantiate RNG4 SH%d\n",
 					sh_idx);
@@ -534,8 +535,8 @@ static int caam_probe(struct platform_de
 	 * long pointers in master configuration register
 	 */
 	clrsetbits_32(&ctrl->mcr, MCFGR_AWCACHE_MASK, MCFGR_AWCACHE_CACH |
-		      MCFGR_WDENABLE | (sizeof(dma_addr_t) == sizeof(u64) ?
-					MCFGR_LONG_PTR : 0));
+		      MCFGR_AWCACHE_BUFF | MCFGR_WDENABLE |
+		      (sizeof(dma_addr_t) == sizeof(u64) ? MCFGR_LONG_PTR : 0));
 
 	/*
 	 *  Read the Compile Time paramters and SCFGR to determine
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/crypto/caam/jr.c linux-libre-4.4.107-gnu/drivers/crypto/caam/jr.c
--- linux-libre-4.4-gnu/drivers/crypto/caam/jr.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/crypto/caam/jr.c	2017-12-20 04:05:01.000000000 -0500
@@ -248,7 +248,7 @@ static void caam_jr_dequeue(unsigned lon
 struct device *caam_jr_alloc(void)
 {
 	struct caam_drv_private_jr *jrpriv, *min_jrpriv = NULL;
-	struct device *dev = NULL;
+	struct device *dev = ERR_PTR(-ENODEV);
 	int min_tfm_cnt	= INT_MAX;
 	int tfm_cnt;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/crypto/caam/key_gen.c linux-libre-4.4.107-gnu/drivers/crypto/caam/key_gen.c
--- linux-libre-4.4-gnu/drivers/crypto/caam/key_gen.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/crypto/caam/key_gen.c	2017-12-20 04:05:01.000000000 -0500
@@ -103,7 +103,7 @@ int gen_split_key(struct device *jrdev,
 	ret = caam_jr_enqueue(jrdev, desc, split_key_done, &result);
 	if (!ret) {
 		/* in progress */
-		wait_for_completion_interruptible(&result.completion);
+		wait_for_completion(&result.completion);
 		ret = result.err;
 #ifdef DEBUG
 		print_hex_dump(KERN_ERR, "ctx.key@"__stringify(__LINE__)": ",
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/crypto/ccp/ccp-crypto-aes-cmac.c linux-libre-4.4.107-gnu/drivers/crypto/ccp/ccp-crypto-aes-cmac.c
--- linux-libre-4.4-gnu/drivers/crypto/ccp/ccp-crypto-aes-cmac.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/crypto/ccp/ccp-crypto-aes-cmac.c	2017-12-20 04:05:01.000000000 -0500
@@ -220,6 +220,42 @@ static int ccp_aes_cmac_digest(struct ah
 	return ccp_aes_cmac_finup(req);
 }
 
+static int ccp_aes_cmac_export(struct ahash_request *req, void *out)
+{
+	struct ccp_aes_cmac_req_ctx *rctx = ahash_request_ctx(req);
+	struct ccp_aes_cmac_exp_ctx state;
+
+	/* Don't let anything leak to 'out' */
+	memset(&state, 0, sizeof(state));
+
+	state.null_msg = rctx->null_msg;
+	memcpy(state.iv, rctx->iv, sizeof(state.iv));
+	state.buf_count = rctx->buf_count;
+	memcpy(state.buf, rctx->buf, sizeof(state.buf));
+
+	/* 'out' may not be aligned so memcpy from local variable */
+	memcpy(out, &state, sizeof(state));
+
+	return 0;
+}
+
+static int ccp_aes_cmac_import(struct ahash_request *req, const void *in)
+{
+	struct ccp_aes_cmac_req_ctx *rctx = ahash_request_ctx(req);
+	struct ccp_aes_cmac_exp_ctx state;
+
+	/* 'in' may not be aligned so memcpy to local variable */
+	memcpy(&state, in, sizeof(state));
+
+	memset(rctx, 0, sizeof(*rctx));
+	rctx->null_msg = state.null_msg;
+	memcpy(rctx->iv, state.iv, sizeof(rctx->iv));
+	rctx->buf_count = state.buf_count;
+	memcpy(rctx->buf, state.buf, sizeof(rctx->buf));
+
+	return 0;
+}
+
 static int ccp_aes_cmac_setkey(struct crypto_ahash *tfm, const u8 *key,
 			       unsigned int key_len)
 {
@@ -352,10 +388,13 @@ int ccp_register_aes_cmac_algs(struct li
 	alg->final = ccp_aes_cmac_final;
 	alg->finup = ccp_aes_cmac_finup;
 	alg->digest = ccp_aes_cmac_digest;
+	alg->export = ccp_aes_cmac_export;
+	alg->import = ccp_aes_cmac_import;
 	alg->setkey = ccp_aes_cmac_setkey;
 
 	halg = &alg->halg;
 	halg->digestsize = AES_BLOCK_SIZE;
+	halg->statesize = sizeof(struct ccp_aes_cmac_exp_ctx);
 
 	base = &halg->base;
 	snprintf(base->cra_name, CRYPTO_MAX_ALG_NAME, "cmac(aes)");
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/crypto/ccp/ccp-crypto-aes-xts.c linux-libre-4.4.107-gnu/drivers/crypto/ccp/ccp-crypto-aes-xts.c
--- linux-libre-4.4-gnu/drivers/crypto/ccp/ccp-crypto-aes-xts.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/crypto/ccp/ccp-crypto-aes-xts.c	2017-12-20 04:05:01.000000000 -0500
@@ -122,6 +122,7 @@ static int ccp_aes_xts_crypt(struct ablk
 	struct ccp_ctx *ctx = crypto_tfm_ctx(req->base.tfm);
 	struct ccp_aes_req_ctx *rctx = ablkcipher_request_ctx(req);
 	unsigned int unit;
+	u32 unit_size;
 	int ret;
 
 	if (!ctx->u.aes.key_len)
@@ -133,11 +134,17 @@ static int ccp_aes_xts_crypt(struct ablk
 	if (!req->info)
 		return -EINVAL;
 
-	for (unit = 0; unit < ARRAY_SIZE(unit_size_map); unit++)
-		if (!(req->nbytes & (unit_size_map[unit].size - 1)))
-			break;
+	unit_size = CCP_XTS_AES_UNIT_SIZE__LAST;
+	if (req->nbytes <= unit_size_map[0].size) {
+		for (unit = 0; unit < ARRAY_SIZE(unit_size_map); unit++) {
+			if (!(req->nbytes & (unit_size_map[unit].size - 1))) {
+				unit_size = unit_size_map[unit].value;
+				break;
+			}
+		}
+	}
 
-	if ((unit_size_map[unit].value == CCP_XTS_AES_UNIT_SIZE__LAST) ||
+	if ((unit_size == CCP_XTS_AES_UNIT_SIZE__LAST) ||
 	    (ctx->u.aes.key_len != AES_KEYSIZE_128)) {
 		/* Use the fallback to process the request for any
 		 * unsupported unit sizes or key sizes
@@ -158,7 +165,7 @@ static int ccp_aes_xts_crypt(struct ablk
 	rctx->cmd.engine = CCP_ENGINE_XTS_AES_128;
 	rctx->cmd.u.xts.action = (encrypt) ? CCP_AES_ACTION_ENCRYPT
 					   : CCP_AES_ACTION_DECRYPT;
-	rctx->cmd.u.xts.unit_size = unit_size_map[unit].value;
+	rctx->cmd.u.xts.unit_size = unit_size;
 	rctx->cmd.u.xts.key = &ctx->u.aes.key_sg;
 	rctx->cmd.u.xts.key_len = ctx->u.aes.key_len;
 	rctx->cmd.u.xts.iv = &rctx->iv_sg;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/crypto/ccp/ccp-crypto.h linux-libre-4.4.107-gnu/drivers/crypto/ccp/ccp-crypto.h
--- linux-libre-4.4-gnu/drivers/crypto/ccp/ccp-crypto.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/crypto/ccp/ccp-crypto.h	2017-12-20 04:05:01.000000000 -0500
@@ -129,6 +129,15 @@ struct ccp_aes_cmac_req_ctx {
 	struct ccp_cmd cmd;
 };
 
+struct ccp_aes_cmac_exp_ctx {
+	unsigned int null_msg;
+
+	u8 iv[AES_BLOCK_SIZE];
+
+	unsigned int buf_count;
+	u8 buf[AES_BLOCK_SIZE];
+};
+
 /***** SHA related defines *****/
 #define MAX_SHA_CONTEXT_SIZE	SHA256_DIGEST_SIZE
 #define MAX_SHA_BLOCK_SIZE	SHA256_BLOCK_SIZE
@@ -171,6 +180,19 @@ struct ccp_sha_req_ctx {
 	struct ccp_cmd cmd;
 };
 
+struct ccp_sha_exp_ctx {
+	enum ccp_sha_type type;
+
+	u64 msg_bits;
+
+	unsigned int first;
+
+	u8 ctx[MAX_SHA_CONTEXT_SIZE];
+
+	unsigned int buf_count;
+	u8 buf[MAX_SHA_BLOCK_SIZE];
+};
+
 /***** Common Context Structure *****/
 struct ccp_ctx {
 	int (*complete)(struct crypto_async_request *req, int ret);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/crypto/ccp/ccp-crypto-sha.c linux-libre-4.4.107-gnu/drivers/crypto/ccp/ccp-crypto-sha.c
--- linux-libre-4.4-gnu/drivers/crypto/ccp/ccp-crypto-sha.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/crypto/ccp/ccp-crypto-sha.c	2017-12-20 04:05:01.000000000 -0500
@@ -207,6 +207,46 @@ static int ccp_sha_digest(struct ahash_r
 	return ccp_sha_finup(req);
 }
 
+static int ccp_sha_export(struct ahash_request *req, void *out)
+{
+	struct ccp_sha_req_ctx *rctx = ahash_request_ctx(req);
+	struct ccp_sha_exp_ctx state;
+
+	/* Don't let anything leak to 'out' */
+	memset(&state, 0, sizeof(state));
+
+	state.type = rctx->type;
+	state.msg_bits = rctx->msg_bits;
+	state.first = rctx->first;
+	memcpy(state.ctx, rctx->ctx, sizeof(state.ctx));
+	state.buf_count = rctx->buf_count;
+	memcpy(state.buf, rctx->buf, sizeof(state.buf));
+
+	/* 'out' may not be aligned so memcpy from local variable */
+	memcpy(out, &state, sizeof(state));
+
+	return 0;
+}
+
+static int ccp_sha_import(struct ahash_request *req, const void *in)
+{
+	struct ccp_sha_req_ctx *rctx = ahash_request_ctx(req);
+	struct ccp_sha_exp_ctx state;
+
+	/* 'in' may not be aligned so memcpy to local variable */
+	memcpy(&state, in, sizeof(state));
+
+	memset(rctx, 0, sizeof(*rctx));
+	rctx->type = state.type;
+	rctx->msg_bits = state.msg_bits;
+	rctx->first = state.first;
+	memcpy(rctx->ctx, state.ctx, sizeof(rctx->ctx));
+	rctx->buf_count = state.buf_count;
+	memcpy(rctx->buf, state.buf, sizeof(rctx->buf));
+
+	return 0;
+}
+
 static int ccp_sha_setkey(struct crypto_ahash *tfm, const u8 *key,
 			  unsigned int key_len)
 {
@@ -403,9 +443,12 @@ static int ccp_register_sha_alg(struct l
 	alg->final = ccp_sha_final;
 	alg->finup = ccp_sha_finup;
 	alg->digest = ccp_sha_digest;
+	alg->export = ccp_sha_export;
+	alg->import = ccp_sha_import;
 
 	halg = &alg->halg;
 	halg->digestsize = def->digest_size;
+	halg->statesize = sizeof(struct ccp_sha_exp_ctx);
 
 	base = &halg->base;
 	snprintf(base->cra_name, CRYPTO_MAX_ALG_NAME, "%s", def->name);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/crypto/marvell/cesa.c linux-libre-4.4.107-gnu/drivers/crypto/marvell/cesa.c
--- linux-libre-4.4-gnu/drivers/crypto/marvell/cesa.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/crypto/marvell/cesa.c	2017-12-20 04:05:01.000000000 -0500
@@ -306,7 +306,7 @@ static int mv_cesa_dev_dma_init(struct m
 		return -ENOMEM;
 
 	dma->padding_pool = dmam_pool_create("cesa_padding", dev, 72, 1, 0);
-	if (!dma->cache_pool)
+	if (!dma->padding_pool)
 		return -ENOMEM;
 
 	cesa->dma = dma;
@@ -420,7 +420,7 @@ static int mv_cesa_probe(struct platform
 	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "regs");
 	cesa->regs = devm_ioremap_resource(dev, res);
 	if (IS_ERR(cesa->regs))
-		return -ENOMEM;
+		return PTR_ERR(cesa->regs);
 
 	ret = mv_cesa_dev_dma_init(cesa);
 	if (ret)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/crypto/nx/nx-842-powernv.c linux-libre-4.4.107-gnu/drivers/crypto/nx/nx-842-powernv.c
--- linux-libre-4.4-gnu/drivers/crypto/nx/nx-842-powernv.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/crypto/nx/nx-842-powernv.c	2017-12-20 04:05:01.000000000 -0500
@@ -442,6 +442,14 @@ static int nx842_powernv_function(const
 			     (unsigned int)ccw,
 			     (unsigned int)be32_to_cpu(crb->ccw));
 
+	/*
+	 * NX842 coprocessor sets 3rd bit in CR register with XER[S0].
+	 * XER[S0] is the integer summary overflow bit which is nothing
+	 * to do NX. Since this bit can be set with other return values,
+	 * mask this bit.
+	 */
+	ret &= ~ICSWX_XERS0;
+
 	switch (ret) {
 	case ICSWX_INITIATED:
 		ret = wait_for_csb(wmem, csb);
@@ -454,10 +462,6 @@ static int nx842_powernv_function(const
 		pr_err_ratelimited("ICSWX rejected\n");
 		ret = -EPROTO;
 		break;
-	default:
-		pr_err_ratelimited("Invalid ICSWX return code %x\n", ret);
-		ret = -EPROTO;
-		break;
 	}
 
 	if (!ret)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/crypto/nx/nx.c linux-libre-4.4.107-gnu/drivers/crypto/nx/nx.c
--- linux-libre-4.4-gnu/drivers/crypto/nx/nx.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/crypto/nx/nx.c	2017-12-20 04:05:01.000000000 -0500
@@ -392,7 +392,7 @@ static void nx_of_update_msc(struct devi
 		     ((bytes_so_far + sizeof(struct msc_triplet)) <= lenp) &&
 		     i < msc->triplets;
 		     i++) {
-			if (msc->fc > NX_MAX_FC || msc->mode > NX_MAX_MODE) {
+			if (msc->fc >= NX_MAX_FC || msc->mode >= NX_MAX_MODE) {
 				dev_err(dev, "unknown function code/mode "
 					"combo: %d/%d (ignored)\n", msc->fc,
 					msc->mode);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/crypto/qat/qat_common/adf_common_drv.h linux-libre-4.4.107-gnu/drivers/crypto/qat/qat_common/adf_common_drv.h
--- linux-libre-4.4-gnu/drivers/crypto/qat/qat_common/adf_common_drv.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/crypto/qat/qat_common/adf_common_drv.h	2017-12-20 04:05:01.000000000 -0500
@@ -227,6 +227,8 @@ void adf_disable_vf2pf_interrupts(struct
 				  uint32_t vf_mask);
 void adf_enable_vf2pf_interrupts(struct adf_accel_dev *accel_dev,
 				 uint32_t vf_mask);
+int adf_init_pf_wq(void);
+void adf_exit_pf_wq(void);
 #else
 static inline int adf_sriov_configure(struct pci_dev *pdev, int numvfs)
 {
@@ -236,5 +238,14 @@ static inline int adf_sriov_configure(st
 static inline void adf_disable_sriov(struct adf_accel_dev *accel_dev)
 {
 }
+
+static inline int adf_init_pf_wq(void)
+{
+	return 0;
+}
+
+static inline void adf_exit_pf_wq(void)
+{
+}
 #endif
 #endif
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/crypto/qat/qat_common/adf_ctl_drv.c linux-libre-4.4.107-gnu/drivers/crypto/qat/qat_common/adf_ctl_drv.c
--- linux-libre-4.4-gnu/drivers/crypto/qat/qat_common/adf_ctl_drv.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/crypto/qat/qat_common/adf_ctl_drv.c	2017-12-20 04:05:01.000000000 -0500
@@ -469,12 +469,17 @@ static int __init adf_register_ctl_devic
 	if (adf_init_aer())
 		goto err_aer;
 
+	if (adf_init_pf_wq())
+		goto err_pf_wq;
+
 	if (qat_crypto_register())
 		goto err_crypto_register;
 
 	return 0;
 
 err_crypto_register:
+	adf_exit_pf_wq();
+err_pf_wq:
 	adf_exit_aer();
 err_aer:
 	adf_chr_drv_destroy();
@@ -487,6 +492,7 @@ static void __exit adf_unregister_ctl_de
 {
 	adf_chr_drv_destroy();
 	adf_exit_aer();
+	adf_exit_pf_wq();
 	qat_crypto_unregister();
 	adf_clean_vf_map(false);
 	mutex_destroy(&adf_ctl_lock);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/crypto/qat/qat_common/adf_sriov.c linux-libre-4.4.107-gnu/drivers/crypto/qat/qat_common/adf_sriov.c
--- linux-libre-4.4-gnu/drivers/crypto/qat/qat_common/adf_sriov.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/crypto/qat/qat_common/adf_sriov.c	2017-12-20 04:05:01.000000000 -0500
@@ -119,11 +119,6 @@ static int adf_enable_sriov(struct adf_a
 	int i;
 	u32 reg;
 
-	/* Workqueue for PF2VF responses */
-	pf2vf_resp_wq = create_workqueue("qat_pf2vf_resp_wq");
-	if (!pf2vf_resp_wq)
-		return -ENOMEM;
-
 	for (i = 0, vf_info = accel_dev->pf.vf_info; i < totalvfs;
 	     i++, vf_info++) {
 		/* This ptr will be populated when VFs will be created */
@@ -216,11 +211,6 @@ void adf_disable_sriov(struct adf_accel_
 
 	kfree(accel_dev->pf.vf_info);
 	accel_dev->pf.vf_info = NULL;
-
-	if (pf2vf_resp_wq) {
-		destroy_workqueue(pf2vf_resp_wq);
-		pf2vf_resp_wq = NULL;
-	}
 }
 EXPORT_SYMBOL_GPL(adf_disable_sriov);
 
@@ -304,3 +294,19 @@ int adf_sriov_configure(struct pci_dev *
 	return numvfs;
 }
 EXPORT_SYMBOL_GPL(adf_sriov_configure);
+
+int __init adf_init_pf_wq(void)
+{
+	/* Workqueue for PF2VF responses */
+	pf2vf_resp_wq = create_workqueue("qat_pf2vf_resp_wq");
+
+	return !pf2vf_resp_wq ? -ENOMEM : 0;
+}
+
+void adf_exit_pf_wq(void)
+{
+	if (pf2vf_resp_wq) {
+		destroy_workqueue(pf2vf_resp_wq);
+		pf2vf_resp_wq = NULL;
+	}
+}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/crypto/qat/qat_common/Makefile linux-libre-4.4.107-gnu/drivers/crypto/qat/qat_common/Makefile
--- linux-libre-4.4-gnu/drivers/crypto/qat/qat_common/Makefile	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/crypto/qat/qat_common/Makefile	2017-12-20 04:05:01.000000000 -0500
@@ -2,6 +2,7 @@ $(obj)/qat_rsapubkey-asn1.o: $(obj)/qat_
 			     $(obj)/qat_rsapubkey-asn1.h
 $(obj)/qat_rsaprivkey-asn1.o: $(obj)/qat_rsaprivkey-asn1.c \
 			      $(obj)/qat_rsaprivkey-asn1.h
+$(obj)/qat_asym_algs.o: $(obj)/qat_rsapubkey-asn1.h $(obj)/qat_rsaprivkey-asn1.h
 
 clean-files += qat_rsapubkey-asn1.c qat_rsapubkey-asn1.h
 clean-files += qat_rsaprivkey-asn1.c qat_rsapvivkey-asn1.h
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/crypto/qat/qat_common/qat_algs.c linux-libre-4.4.107-gnu/drivers/crypto/qat/qat_common/qat_algs.c
--- linux-libre-4.4-gnu/drivers/crypto/qat/qat_common/qat_algs.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/crypto/qat/qat_common/qat_algs.c	2017-12-20 04:05:01.000000000 -0500
@@ -1262,8 +1262,8 @@ static struct crypto_alg qat_algs[] = {
 			.setkey = qat_alg_ablkcipher_xts_setkey,
 			.decrypt = qat_alg_ablkcipher_decrypt,
 			.encrypt = qat_alg_ablkcipher_encrypt,
-			.min_keysize = AES_MIN_KEY_SIZE,
-			.max_keysize = AES_MAX_KEY_SIZE,
+			.min_keysize = 2 * AES_MIN_KEY_SIZE,
+			.max_keysize = 2 * AES_MAX_KEY_SIZE,
 			.ivsize = AES_BLOCK_SIZE,
 		},
 	},
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/crypto/s5p-sss.c linux-libre-4.4.107-gnu/drivers/crypto/s5p-sss.c
--- linux-libre-4.4-gnu/drivers/crypto/s5p-sss.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/crypto/s5p-sss.c	2017-12-20 04:05:01.000000000 -0500
@@ -664,8 +664,9 @@ static int s5p_aes_probe(struct platform
 		dev_warn(dev, "feed control interrupt is not available.\n");
 		goto err_irq;
 	}
-	err = devm_request_irq(dev, pdata->irq_fc, s5p_aes_interrupt,
-			       IRQF_SHARED, pdev->name, pdev);
+	err = devm_request_threaded_irq(dev, pdata->irq_fc, NULL,
+					s5p_aes_interrupt, IRQF_ONESHOT,
+					pdev->name, pdev);
 	if (err < 0) {
 		dev_warn(dev, "feed control interrupt is not available.\n");
 		goto err_irq;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/crypto/sunxi-ss/sun4i-ss-cipher.c linux-libre-4.4.107-gnu/drivers/crypto/sunxi-ss/sun4i-ss-cipher.c
--- linux-libre-4.4-gnu/drivers/crypto/sunxi-ss/sun4i-ss-cipher.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/crypto/sunxi-ss/sun4i-ss-cipher.c	2017-12-20 04:05:01.000000000 -0500
@@ -35,6 +35,7 @@ static int sun4i_ss_opti_poll(struct abl
 	unsigned int todo;
 	struct sg_mapping_iter mi, mo;
 	unsigned int oi, oo; /* offset for in and out */
+	unsigned long flags;
 
 	if (areq->nbytes == 0)
 		return 0;
@@ -49,7 +50,7 @@ static int sun4i_ss_opti_poll(struct abl
 		return -EINVAL;
 	}
 
-	spin_lock_bh(&ss->slock);
+	spin_lock_irqsave(&ss->slock, flags);
 
 	for (i = 0; i < op->keylen; i += 4)
 		writel(*(op->key + i / 4), ss->base + SS_KEY0 + i);
@@ -117,7 +118,7 @@ release_ss:
 	sg_miter_stop(&mi);
 	sg_miter_stop(&mo);
 	writel(0, ss->base + SS_CTL);
-	spin_unlock_bh(&ss->slock);
+	spin_unlock_irqrestore(&ss->slock, flags);
 	return err;
 }
 
@@ -149,6 +150,7 @@ static int sun4i_ss_cipher_poll(struct a
 	unsigned int ob = 0;	/* offset in buf */
 	unsigned int obo = 0;	/* offset in bufo*/
 	unsigned int obl = 0;	/* length of data in bufo */
+	unsigned long flags;
 
 	if (areq->nbytes == 0)
 		return 0;
@@ -181,7 +183,7 @@ static int sun4i_ss_cipher_poll(struct a
 	if (no_chunk == 1)
 		return sun4i_ss_opti_poll(areq);
 
-	spin_lock_bh(&ss->slock);
+	spin_lock_irqsave(&ss->slock, flags);
 
 	for (i = 0; i < op->keylen; i += 4)
 		writel(*(op->key + i / 4), ss->base + SS_KEY0 + i);
@@ -308,7 +310,7 @@ release_ss:
 	sg_miter_stop(&mi);
 	sg_miter_stop(&mo);
 	writel(0, ss->base + SS_CTL);
-	spin_unlock_bh(&ss->slock);
+	spin_unlock_irqrestore(&ss->slock, flags);
 
 	return err;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/crypto/sunxi-ss/sun4i-ss-core.c linux-libre-4.4.107-gnu/drivers/crypto/sunxi-ss/sun4i-ss-core.c
--- linux-libre-4.4-gnu/drivers/crypto/sunxi-ss/sun4i-ss-core.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/crypto/sunxi-ss/sun4i-ss-core.c	2017-12-20 04:05:01.000000000 -0500
@@ -39,6 +39,7 @@ static struct sun4i_ss_alg_template ss_a
 		.import = sun4i_hash_import_md5,
 		.halg = {
 			.digestsize = MD5_DIGEST_SIZE,
+			.statesize = sizeof(struct md5_state),
 			.base = {
 				.cra_name = "md5",
 				.cra_driver_name = "md5-sun4i-ss",
@@ -66,6 +67,7 @@ static struct sun4i_ss_alg_template ss_a
 		.import = sun4i_hash_import_sha1,
 		.halg = {
 			.digestsize = SHA1_DIGEST_SIZE,
+			.statesize = sizeof(struct sha1_state),
 			.base = {
 				.cra_name = "sha1",
 				.cra_driver_name = "sha1-sun4i-ss",
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/crypto/talitos.c linux-libre-4.4.107-gnu/drivers/crypto/talitos.c
--- linux-libre-4.4-gnu/drivers/crypto/talitos.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/crypto/talitos.c	2017-12-20 04:05:01.000000000 -0500
@@ -63,6 +63,14 @@ static void to_talitos_ptr(struct talito
 		ptr->eptr = upper_32_bits(dma_addr);
 }
 
+static void copy_talitos_ptr(struct talitos_ptr *dst_ptr,
+			     struct talitos_ptr *src_ptr, bool is_sec1)
+{
+	dst_ptr->ptr = src_ptr->ptr;
+	if (!is_sec1)
+		dst_ptr->eptr = src_ptr->eptr;
+}
+
 static void to_talitos_ptr_len(struct talitos_ptr *ptr, unsigned int len,
 			       bool is_sec1)
 {
@@ -796,7 +804,7 @@ static void talitos_unregister_rng(struc
  * crypto alg
  */
 #define TALITOS_CRA_PRIORITY		3000
-#define TALITOS_MAX_KEY_SIZE		96
+#define TALITOS_MAX_KEY_SIZE		(AES_MAX_KEY_SIZE + SHA512_BLOCK_SIZE)
 #define TALITOS_MAX_IV_LENGTH		16 /* max of AES_BLOCK_SIZE, DES3_EDE_BLOCK_SIZE */
 
 struct talitos_ctx {
@@ -827,6 +835,16 @@ struct talitos_ahash_req_ctx {
 	struct scatterlist *psrc;
 };
 
+struct talitos_export_state {
+	u32 hw_context[TALITOS_MDEU_MAX_CONTEXT_SIZE / sizeof(u32)];
+	u8 buf[HASH_MAX_BLOCK_SIZE];
+	unsigned int swinit;
+	unsigned int first;
+	unsigned int last;
+	unsigned int to_hash_later;
+	unsigned int nbuf;
+};
+
 static int aead_setkey(struct crypto_aead *authenc,
 		       const u8 *key, unsigned int keylen)
 {
@@ -1083,21 +1101,20 @@ static int ipsec_esp(struct talitos_edes
 	sg_count = dma_map_sg(dev, areq->src, edesc->src_nents ?: 1,
 			      (areq->src == areq->dst) ? DMA_BIDIRECTIONAL
 							   : DMA_TO_DEVICE);
-
 	/* hmac data */
 	desc->ptr[1].len = cpu_to_be16(areq->assoclen);
 	if (sg_count > 1 &&
 	    (ret = sg_to_link_tbl_offset(areq->src, sg_count, 0,
 					 areq->assoclen,
 					 &edesc->link_tbl[tbl_off])) > 1) {
-		tbl_off += ret;
-
 		to_talitos_ptr(&desc->ptr[1], edesc->dma_link_tbl + tbl_off *
 			       sizeof(struct talitos_ptr), 0);
 		desc->ptr[1].j_extent = DESC_PTR_LNKTBL_JUMP;
 
 		dma_sync_single_for_device(dev, edesc->dma_link_tbl,
 					   edesc->dma_len, DMA_BIDIRECTIONAL);
+
+		tbl_off += ret;
 	} else {
 		to_talitos_ptr(&desc->ptr[1], sg_dma_address(areq->src), 0);
 		desc->ptr[1].j_extent = 0;
@@ -1126,11 +1143,13 @@ static int ipsec_esp(struct talitos_edes
 	if (edesc->desc.hdr & DESC_HDR_MODE1_MDEU_CICV)
 		sg_link_tbl_len += authsize;
 
-	if (sg_count > 1 &&
-	    (ret = sg_to_link_tbl_offset(areq->src, sg_count, areq->assoclen,
-					 sg_link_tbl_len,
-					 &edesc->link_tbl[tbl_off])) > 1) {
-		tbl_off += ret;
+	if (sg_count == 1) {
+		to_talitos_ptr(&desc->ptr[4], sg_dma_address(areq->src) +
+			       areq->assoclen, 0);
+	} else if ((ret = sg_to_link_tbl_offset(areq->src, sg_count,
+						areq->assoclen, sg_link_tbl_len,
+						&edesc->link_tbl[tbl_off])) >
+		   1) {
 		desc->ptr[4].j_extent |= DESC_PTR_LNKTBL_JUMP;
 		to_talitos_ptr(&desc->ptr[4], edesc->dma_link_tbl +
 					      tbl_off *
@@ -1138,8 +1157,10 @@ static int ipsec_esp(struct talitos_edes
 		dma_sync_single_for_device(dev, edesc->dma_link_tbl,
 					   edesc->dma_len,
 					   DMA_BIDIRECTIONAL);
-	} else
-		to_talitos_ptr(&desc->ptr[4], sg_dma_address(areq->src), 0);
+		tbl_off += ret;
+	} else {
+		copy_talitos_ptr(&desc->ptr[4], &edesc->link_tbl[tbl_off], 0);
+	}
 
 	/* cipher out */
 	desc->ptr[5].len = cpu_to_be16(cryptlen);
@@ -1151,11 +1172,13 @@ static int ipsec_esp(struct talitos_edes
 
 	edesc->icv_ool = false;
 
-	if (sg_count > 1 &&
-	    (sg_count = sg_to_link_tbl_offset(areq->dst, sg_count,
+	if (sg_count == 1) {
+		to_talitos_ptr(&desc->ptr[5], sg_dma_address(areq->dst) +
+			       areq->assoclen, 0);
+	} else if ((sg_count =
+			sg_to_link_tbl_offset(areq->dst, sg_count,
 					      areq->assoclen, cryptlen,
-					      &edesc->link_tbl[tbl_off])) >
-	    1) {
+					      &edesc->link_tbl[tbl_off])) > 1) {
 		struct talitos_ptr *tbl_ptr = &edesc->link_tbl[tbl_off];
 
 		to_talitos_ptr(&desc->ptr[5], edesc->dma_link_tbl +
@@ -1178,8 +1201,9 @@ static int ipsec_esp(struct talitos_edes
 					   edesc->dma_len, DMA_BIDIRECTIONAL);
 
 		edesc->icv_ool = true;
-	} else
-		to_talitos_ptr(&desc->ptr[5], sg_dma_address(areq->dst), 0);
+	} else {
+		copy_talitos_ptr(&desc->ptr[5], &edesc->link_tbl[tbl_off], 0);
+	}
 
 	/* iv out */
 	map_single_talitos_ptr(dev, &desc->ptr[6], ivsize, ctx->iv,
@@ -1364,6 +1388,11 @@ static int ablkcipher_setkey(struct cryp
 {
 	struct talitos_ctx *ctx = crypto_ablkcipher_ctx(cipher);
 
+	if (keylen > TALITOS_MAX_KEY_SIZE) {
+		crypto_ablkcipher_set_flags(cipher, CRYPTO_TFM_RES_BAD_KEY_LEN);
+		return -EINVAL;
+	}
+
 	memcpy(&ctx->key, key, keylen);
 	ctx->keylen = keylen;
 
@@ -1720,9 +1749,9 @@ static int common_nonsnoop_hash(struct t
 		req_ctx->swinit = 0;
 	} else {
 		desc->ptr[1] = zero_entry;
-		/* Indicate next op is not the first. */
-		req_ctx->first = 0;
 	}
+	/* Indicate next op is not the first. */
+	req_ctx->first = 0;
 
 	/* HMAC key */
 	if (ctx->keylen)
@@ -1940,6 +1969,46 @@ static int ahash_digest(struct ahash_req
 	return ahash_process_req(areq, areq->nbytes);
 }
 
+static int ahash_export(struct ahash_request *areq, void *out)
+{
+	struct talitos_ahash_req_ctx *req_ctx = ahash_request_ctx(areq);
+	struct talitos_export_state *export = out;
+
+	memcpy(export->hw_context, req_ctx->hw_context,
+	       req_ctx->hw_context_size);
+	memcpy(export->buf, req_ctx->buf, req_ctx->nbuf);
+	export->swinit = req_ctx->swinit;
+	export->first = req_ctx->first;
+	export->last = req_ctx->last;
+	export->to_hash_later = req_ctx->to_hash_later;
+	export->nbuf = req_ctx->nbuf;
+
+	return 0;
+}
+
+static int ahash_import(struct ahash_request *areq, const void *in)
+{
+	struct talitos_ahash_req_ctx *req_ctx = ahash_request_ctx(areq);
+	struct crypto_ahash *tfm = crypto_ahash_reqtfm(areq);
+	const struct talitos_export_state *export = in;
+
+	memset(req_ctx, 0, sizeof(*req_ctx));
+	req_ctx->hw_context_size =
+		(crypto_ahash_digestsize(tfm) <= SHA256_DIGEST_SIZE)
+			? TALITOS_MDEU_CONTEXT_SIZE_MD5_SHA1_SHA256
+			: TALITOS_MDEU_CONTEXT_SIZE_SHA384_SHA512;
+	memcpy(req_ctx->hw_context, export->hw_context,
+	       req_ctx->hw_context_size);
+	memcpy(req_ctx->buf, export->buf, export->nbuf);
+	req_ctx->swinit = export->swinit;
+	req_ctx->first = export->first;
+	req_ctx->last = export->last;
+	req_ctx->to_hash_later = export->to_hash_later;
+	req_ctx->nbuf = export->nbuf;
+
+	return 0;
+}
+
 struct keyhash_result {
 	struct completion completion;
 	int err;
@@ -2334,6 +2403,7 @@ static struct talitos_alg_template drive
 	{	.type = CRYPTO_ALG_TYPE_AHASH,
 		.alg.hash = {
 			.halg.digestsize = MD5_DIGEST_SIZE,
+			.halg.statesize = sizeof(struct talitos_export_state),
 			.halg.base = {
 				.cra_name = "md5",
 				.cra_driver_name = "md5-talitos",
@@ -2349,6 +2419,7 @@ static struct talitos_alg_template drive
 	{	.type = CRYPTO_ALG_TYPE_AHASH,
 		.alg.hash = {
 			.halg.digestsize = SHA1_DIGEST_SIZE,
+			.halg.statesize = sizeof(struct talitos_export_state),
 			.halg.base = {
 				.cra_name = "sha1",
 				.cra_driver_name = "sha1-talitos",
@@ -2364,6 +2435,7 @@ static struct talitos_alg_template drive
 	{	.type = CRYPTO_ALG_TYPE_AHASH,
 		.alg.hash = {
 			.halg.digestsize = SHA224_DIGEST_SIZE,
+			.halg.statesize = sizeof(struct talitos_export_state),
 			.halg.base = {
 				.cra_name = "sha224",
 				.cra_driver_name = "sha224-talitos",
@@ -2379,6 +2451,7 @@ static struct talitos_alg_template drive
 	{	.type = CRYPTO_ALG_TYPE_AHASH,
 		.alg.hash = {
 			.halg.digestsize = SHA256_DIGEST_SIZE,
+			.halg.statesize = sizeof(struct talitos_export_state),
 			.halg.base = {
 				.cra_name = "sha256",
 				.cra_driver_name = "sha256-talitos",
@@ -2394,6 +2467,7 @@ static struct talitos_alg_template drive
 	{	.type = CRYPTO_ALG_TYPE_AHASH,
 		.alg.hash = {
 			.halg.digestsize = SHA384_DIGEST_SIZE,
+			.halg.statesize = sizeof(struct talitos_export_state),
 			.halg.base = {
 				.cra_name = "sha384",
 				.cra_driver_name = "sha384-talitos",
@@ -2409,6 +2483,7 @@ static struct talitos_alg_template drive
 	{	.type = CRYPTO_ALG_TYPE_AHASH,
 		.alg.hash = {
 			.halg.digestsize = SHA512_DIGEST_SIZE,
+			.halg.statesize = sizeof(struct talitos_export_state),
 			.halg.base = {
 				.cra_name = "sha512",
 				.cra_driver_name = "sha512-talitos",
@@ -2424,6 +2499,7 @@ static struct talitos_alg_template drive
 	{	.type = CRYPTO_ALG_TYPE_AHASH,
 		.alg.hash = {
 			.halg.digestsize = MD5_DIGEST_SIZE,
+			.halg.statesize = sizeof(struct talitos_export_state),
 			.halg.base = {
 				.cra_name = "hmac(md5)",
 				.cra_driver_name = "hmac-md5-talitos",
@@ -2439,6 +2515,7 @@ static struct talitos_alg_template drive
 	{	.type = CRYPTO_ALG_TYPE_AHASH,
 		.alg.hash = {
 			.halg.digestsize = SHA1_DIGEST_SIZE,
+			.halg.statesize = sizeof(struct talitos_export_state),
 			.halg.base = {
 				.cra_name = "hmac(sha1)",
 				.cra_driver_name = "hmac-sha1-talitos",
@@ -2454,6 +2531,7 @@ static struct talitos_alg_template drive
 	{	.type = CRYPTO_ALG_TYPE_AHASH,
 		.alg.hash = {
 			.halg.digestsize = SHA224_DIGEST_SIZE,
+			.halg.statesize = sizeof(struct talitos_export_state),
 			.halg.base = {
 				.cra_name = "hmac(sha224)",
 				.cra_driver_name = "hmac-sha224-talitos",
@@ -2469,6 +2547,7 @@ static struct talitos_alg_template drive
 	{	.type = CRYPTO_ALG_TYPE_AHASH,
 		.alg.hash = {
 			.halg.digestsize = SHA256_DIGEST_SIZE,
+			.halg.statesize = sizeof(struct talitos_export_state),
 			.halg.base = {
 				.cra_name = "hmac(sha256)",
 				.cra_driver_name = "hmac-sha256-talitos",
@@ -2484,6 +2563,7 @@ static struct talitos_alg_template drive
 	{	.type = CRYPTO_ALG_TYPE_AHASH,
 		.alg.hash = {
 			.halg.digestsize = SHA384_DIGEST_SIZE,
+			.halg.statesize = sizeof(struct talitos_export_state),
 			.halg.base = {
 				.cra_name = "hmac(sha384)",
 				.cra_driver_name = "hmac-sha384-talitos",
@@ -2499,6 +2579,7 @@ static struct talitos_alg_template drive
 	{	.type = CRYPTO_ALG_TYPE_AHASH,
 		.alg.hash = {
 			.halg.digestsize = SHA512_DIGEST_SIZE,
+			.halg.statesize = sizeof(struct talitos_export_state),
 			.halg.base = {
 				.cra_name = "hmac(sha512)",
 				.cra_driver_name = "hmac-sha512-talitos",
@@ -2519,21 +2600,11 @@ struct talitos_crypto_alg {
 	struct talitos_alg_template algt;
 };
 
-static int talitos_cra_init(struct crypto_tfm *tfm)
+static int talitos_init_common(struct talitos_ctx *ctx,
+			       struct talitos_crypto_alg *talitos_alg)
 {
-	struct crypto_alg *alg = tfm->__crt_alg;
-	struct talitos_crypto_alg *talitos_alg;
-	struct talitos_ctx *ctx = crypto_tfm_ctx(tfm);
 	struct talitos_private *priv;
 
-	if ((alg->cra_flags & CRYPTO_ALG_TYPE_MASK) == CRYPTO_ALG_TYPE_AHASH)
-		talitos_alg = container_of(__crypto_ahash_alg(alg),
-					   struct talitos_crypto_alg,
-					   algt.alg.hash);
-	else
-		talitos_alg = container_of(alg, struct talitos_crypto_alg,
-					   algt.alg.crypto);
-
 	/* update context with ptr to dev */
 	ctx->dev = talitos_alg->dev;
 
@@ -2551,10 +2622,33 @@ static int talitos_cra_init(struct crypt
 	return 0;
 }
 
+static int talitos_cra_init(struct crypto_tfm *tfm)
+{
+	struct crypto_alg *alg = tfm->__crt_alg;
+	struct talitos_crypto_alg *talitos_alg;
+	struct talitos_ctx *ctx = crypto_tfm_ctx(tfm);
+
+	if ((alg->cra_flags & CRYPTO_ALG_TYPE_MASK) == CRYPTO_ALG_TYPE_AHASH)
+		talitos_alg = container_of(__crypto_ahash_alg(alg),
+					   struct talitos_crypto_alg,
+					   algt.alg.hash);
+	else
+		talitos_alg = container_of(alg, struct talitos_crypto_alg,
+					   algt.alg.crypto);
+
+	return talitos_init_common(ctx, talitos_alg);
+}
+
 static int talitos_cra_init_aead(struct crypto_aead *tfm)
 {
-	talitos_cra_init(crypto_aead_tfm(tfm));
-	return 0;
+	struct aead_alg *alg = crypto_aead_alg(tfm);
+	struct talitos_crypto_alg *talitos_alg;
+	struct talitos_ctx *ctx = crypto_aead_ctx(tfm);
+
+	talitos_alg = container_of(alg, struct talitos_crypto_alg,
+				   algt.alg.aead);
+
+	return talitos_init_common(ctx, talitos_alg);
 }
 
 static int talitos_cra_init_ahash(struct crypto_tfm *tfm)
@@ -2676,7 +2770,10 @@ static struct talitos_crypto_alg *talito
 		t_alg->algt.alg.hash.final = ahash_final;
 		t_alg->algt.alg.hash.finup = ahash_finup;
 		t_alg->algt.alg.hash.digest = ahash_digest;
-		t_alg->algt.alg.hash.setkey = ahash_setkey;
+		if (!strncmp(alg->cra_name, "hmac", 4))
+			t_alg->algt.alg.hash.setkey = ahash_setkey;
+		t_alg->algt.alg.hash.import = ahash_import;
+		t_alg->algt.alg.hash.export = ahash_export;
 
 		if (!(priv->features & TALITOS_FTR_HMAC_OK) &&
 		    !strncmp(alg->cra_name, "hmac", 4)) {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/crypto/ux500/cryp/cryp_core.c linux-libre-4.4.107-gnu/drivers/crypto/ux500/cryp/cryp_core.c
--- linux-libre-4.4-gnu/drivers/crypto/ux500/cryp/cryp_core.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/crypto/ux500/cryp/cryp_core.c	2017-12-20 04:05:01.000000000 -0500
@@ -1440,9 +1440,9 @@ static int ux500_cryp_probe(struct platf
 
 	device_data->phybase = res->start;
 	device_data->base = devm_ioremap_resource(dev, res);
-	if (!device_data->base) {
+	if (IS_ERR(device_data->base)) {
 		dev_err(dev, "[%s]: ioremap failed!", __func__);
-		ret = -ENOMEM;
+		ret = PTR_ERR(device_data->base);
 		goto out;
 	}
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/crypto/ux500/hash/hash_core.c linux-libre-4.4.107-gnu/drivers/crypto/ux500/hash/hash_core.c
--- linux-libre-4.4-gnu/drivers/crypto/ux500/hash/hash_core.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/crypto/ux500/hash/hash_core.c	2017-12-20 04:05:01.000000000 -0500
@@ -797,7 +797,7 @@ static int hash_process_data(struct hash
 						&device_data->state);
 				memmove(req_ctx->state.buffer,
 					device_data->state.buffer,
-					HASH_BLOCK_SIZE / sizeof(u32));
+					HASH_BLOCK_SIZE);
 				if (ret) {
 					dev_err(device_data->dev,
 						"%s: hash_resume_state() failed!\n",
@@ -848,7 +848,7 @@ static int hash_process_data(struct hash
 
 			memmove(device_data->state.buffer,
 				req_ctx->state.buffer,
-				HASH_BLOCK_SIZE / sizeof(u32));
+				HASH_BLOCK_SIZE);
 			if (ret) {
 				dev_err(device_data->dev, "%s: hash_save_state() failed!\n",
 					__func__);
@@ -1675,9 +1675,9 @@ static int ux500_hash_probe(struct platf
 
 	device_data->phybase = res->start;
 	device_data->base = devm_ioremap_resource(dev, res);
-	if (!device_data->base) {
+	if (IS_ERR(device_data->base)) {
 		dev_err(dev, "%s: ioremap() failed!\n", __func__);
-		ret = -ENOMEM;
+		ret = PTR_ERR(device_data->base);
 		goto out;
 	}
 	spin_lock_init(&device_data->ctx_lock);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/crypto/vmx/aes_cbc.c linux-libre-4.4.107-gnu/drivers/crypto/vmx/aes_cbc.c
--- linux-libre-4.4-gnu/drivers/crypto/vmx/aes_cbc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/crypto/vmx/aes_cbc.c	2017-12-20 04:05:01.000000000 -0500
@@ -182,7 +182,7 @@ struct crypto_alg p8_aes_cbc_alg = {
 	.cra_name = "cbc(aes)",
 	.cra_driver_name = "p8_aes_cbc",
 	.cra_module = THIS_MODULE,
-	.cra_priority = 1000,
+	.cra_priority = 2000,
 	.cra_type = &crypto_blkcipher_type,
 	.cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER | CRYPTO_ALG_NEED_FALLBACK,
 	.cra_alignmask = 0,
@@ -191,7 +191,7 @@ struct crypto_alg p8_aes_cbc_alg = {
 	.cra_init = p8_aes_cbc_init,
 	.cra_exit = p8_aes_cbc_exit,
 	.cra_blkcipher = {
-			  .ivsize = 0,
+			  .ivsize = AES_BLOCK_SIZE,
 			  .min_keysize = AES_MIN_KEY_SIZE,
 			  .max_keysize = AES_MAX_KEY_SIZE,
 			  .setkey = p8_aes_cbc_setkey,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/crypto/vmx/aes_ctr.c linux-libre-4.4.107-gnu/drivers/crypto/vmx/aes_ctr.c
--- linux-libre-4.4-gnu/drivers/crypto/vmx/aes_ctr.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/crypto/vmx/aes_ctr.c	2017-12-20 04:05:01.000000000 -0500
@@ -80,11 +80,13 @@ static int p8_aes_ctr_setkey(struct cryp
 	int ret;
 	struct p8_aes_ctr_ctx *ctx = crypto_tfm_ctx(tfm);
 
+	preempt_disable();
 	pagefault_disable();
 	enable_kernel_altivec();
 	enable_kernel_vsx();
 	ret = aes_p8_set_encrypt_key(key, keylen * 8, &ctx->enc_key);
 	pagefault_enable();
+	preempt_enable();
 
 	ret += crypto_blkcipher_setkey(ctx->fallback, key, keylen);
 	return ret;
@@ -99,11 +101,13 @@ static void p8_aes_ctr_final(struct p8_a
 	u8 *dst = walk->dst.virt.addr;
 	unsigned int nbytes = walk->nbytes;
 
+	preempt_disable();
 	pagefault_disable();
 	enable_kernel_altivec();
 	enable_kernel_vsx();
 	aes_p8_encrypt(ctrblk, keystream, &ctx->enc_key);
 	pagefault_enable();
+	preempt_enable();
 
 	crypto_xor(keystream, src, nbytes);
 	memcpy(dst, keystream, nbytes);
@@ -132,6 +136,7 @@ static int p8_aes_ctr_crypt(struct blkci
 		blkcipher_walk_init(&walk, dst, src, nbytes);
 		ret = blkcipher_walk_virt_block(desc, &walk, AES_BLOCK_SIZE);
 		while ((nbytes = walk.nbytes) >= AES_BLOCK_SIZE) {
+			preempt_disable();
 			pagefault_disable();
 			enable_kernel_altivec();
 			enable_kernel_vsx();
@@ -143,6 +148,7 @@ static int p8_aes_ctr_crypt(struct blkci
 						    &ctx->enc_key,
 						    walk.iv);
 			pagefault_enable();
+			preempt_enable();
 
 			/* We need to update IV mostly for last bytes/round */
 			inc = (nbytes & AES_BLOCK_MASK) / AES_BLOCK_SIZE;
@@ -166,7 +172,7 @@ struct crypto_alg p8_aes_ctr_alg = {
 	.cra_name = "ctr(aes)",
 	.cra_driver_name = "p8_aes_ctr",
 	.cra_module = THIS_MODULE,
-	.cra_priority = 1000,
+	.cra_priority = 2000,
 	.cra_type = &crypto_blkcipher_type,
 	.cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER | CRYPTO_ALG_NEED_FALLBACK,
 	.cra_alignmask = 0,
@@ -175,7 +181,7 @@ struct crypto_alg p8_aes_ctr_alg = {
 	.cra_init = p8_aes_ctr_init,
 	.cra_exit = p8_aes_ctr_exit,
 	.cra_blkcipher = {
-			  .ivsize = 0,
+			  .ivsize = AES_BLOCK_SIZE,
 			  .min_keysize = AES_MIN_KEY_SIZE,
 			  .max_keysize = AES_MAX_KEY_SIZE,
 			  .setkey = p8_aes_ctr_setkey,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/crypto/vmx/ghash.c linux-libre-4.4.107-gnu/drivers/crypto/vmx/ghash.c
--- linux-libre-4.4-gnu/drivers/crypto/vmx/ghash.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/crypto/vmx/ghash.c	2017-12-20 04:05:01.000000000 -0500
@@ -26,16 +26,13 @@
 #include <linux/hardirq.h>
 #include <asm/switch_to.h>
 #include <crypto/aes.h>
+#include <crypto/ghash.h>
 #include <crypto/scatterwalk.h>
 #include <crypto/internal/hash.h>
 #include <crypto/b128ops.h>
 
 #define IN_INTERRUPT in_interrupt()
 
-#define GHASH_BLOCK_SIZE (16)
-#define GHASH_DIGEST_SIZE (16)
-#define GHASH_KEY_LEN (16)
-
 void gcm_init_p8(u128 htable[16], const u64 Xi[2]);
 void gcm_gmult_p8(u64 Xi[2], const u128 htable[16]);
 void gcm_ghash_p8(u64 Xi[2], const u128 htable[16],
@@ -55,16 +52,11 @@ struct p8_ghash_desc_ctx {
 
 static int p8_ghash_init_tfm(struct crypto_tfm *tfm)
 {
-	const char *alg;
+	const char *alg = "ghash-generic";
 	struct crypto_shash *fallback;
 	struct crypto_shash *shash_tfm = __crypto_shash_cast(tfm);
 	struct p8_ghash_ctx *ctx = crypto_tfm_ctx(tfm);
 
-	if (!(alg = crypto_tfm_alg_name(tfm))) {
-		printk(KERN_ERR "Failed to get algorithm name.\n");
-		return -ENOENT;
-	}
-
 	fallback = crypto_alloc_shash(alg, 0, CRYPTO_ALG_NEED_FALLBACK);
 	if (IS_ERR(fallback)) {
 		printk(KERN_ERR
@@ -78,10 +70,18 @@ static int p8_ghash_init_tfm(struct cryp
 	crypto_shash_set_flags(fallback,
 			       crypto_shash_get_flags((struct crypto_shash
 						       *) tfm));
-	ctx->fallback = fallback;
 
-	shash_tfm->descsize = sizeof(struct p8_ghash_desc_ctx)
-	    + crypto_shash_descsize(fallback);
+	/* Check if the descsize defined in the algorithm is still enough. */
+	if (shash_tfm->descsize < sizeof(struct p8_ghash_desc_ctx)
+	    + crypto_shash_descsize(fallback)) {
+		printk(KERN_ERR
+		       "Desc size of the fallback implementation (%s) does not match the expected value: %lu vs %u\n",
+		       alg,
+		       shash_tfm->descsize - sizeof(struct p8_ghash_desc_ctx),
+		       crypto_shash_descsize(fallback));
+		return -EINVAL;
+	}
+	ctx->fallback = fallback;
 
 	return 0;
 }
@@ -113,7 +113,7 @@ static int p8_ghash_setkey(struct crypto
 {
 	struct p8_ghash_ctx *ctx = crypto_tfm_ctx(crypto_shash_tfm(tfm));
 
-	if (keylen != GHASH_KEY_LEN)
+	if (keylen != GHASH_BLOCK_SIZE)
 		return -EINVAL;
 
 	preempt_disable();
@@ -215,7 +215,8 @@ struct shash_alg p8_ghash_alg = {
 	.update = p8_ghash_update,
 	.final = p8_ghash_final,
 	.setkey = p8_ghash_setkey,
-	.descsize = sizeof(struct p8_ghash_desc_ctx),
+	.descsize = sizeof(struct p8_ghash_desc_ctx)
+		+ sizeof(struct ghash_desc_ctx),
 	.base = {
 		 .cra_name = "ghash",
 		 .cra_driver_name = "p8_ghash",
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/crypto/vmx/ppc-xlate.pl linux-libre-4.4.107-gnu/drivers/crypto/vmx/ppc-xlate.pl
--- linux-libre-4.4-gnu/drivers/crypto/vmx/ppc-xlate.pl	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/crypto/vmx/ppc-xlate.pl	2017-12-20 04:05:01.000000000 -0500
@@ -139,6 +139,26 @@ my $vmr = sub {
     "	vor	$vx,$vy,$vy";
 };
 
+# Some ABIs specify vrsave, special-purpose register #256, as reserved
+# for system use.
+my $no_vrsave = ($flavour =~ /linux-ppc64le/);
+my $mtspr = sub {
+    my ($f,$idx,$ra) = @_;
+    if ($idx == 256 && $no_vrsave) {
+	"	or	$ra,$ra,$ra";
+    } else {
+	"	mtspr	$idx,$ra";
+    }
+};
+my $mfspr = sub {
+    my ($f,$rd,$idx) = @_;
+    if ($idx == 256 && $no_vrsave) {
+	"	li	$rd,-1";
+    } else {
+	"	mfspr	$rd,$idx";
+    }
+};
+
 # PowerISA 2.06 stuff
 sub vsxmem_op {
     my ($f, $vrt, $ra, $rb, $op) = @_;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/dma/at_xdmac.c linux-libre-4.4.107-gnu/drivers/dma/at_xdmac.c
--- linux-libre-4.4-gnu/drivers/dma/at_xdmac.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/dma/at_xdmac.c	2017-12-20 04:05:01.000000000 -0500
@@ -176,6 +176,7 @@
 #define AT_XDMAC_MAX_CHAN	0x20
 #define AT_XDMAC_MAX_CSIZE	16	/* 16 data */
 #define AT_XDMAC_MAX_DWIDTH	8	/* 64 bits */
+#define AT_XDMAC_RESIDUE_MAX_RETRIES	5
 
 #define AT_XDMAC_DMA_BUSWIDTHS\
 	(BIT(DMA_SLAVE_BUSWIDTH_UNDEFINED) |\
@@ -241,7 +242,7 @@ struct at_xdmac_lld {
 	u32		mbr_dus;	/* Destination Microblock Stride Register */
 };
 
-
+/* 64-bit alignment needed to update CNDA and CUBC registers in an atomic way. */
 struct at_xdmac_desc {
 	struct at_xdmac_lld		lld;
 	enum dma_transfer_direction	direction;
@@ -252,7 +253,7 @@ struct at_xdmac_desc {
 	unsigned int			xfer_size;
 	struct list_head		descs_list;
 	struct list_head		xfer_node;
-};
+} __aligned(sizeof(u64));
 
 static inline void __iomem *at_xdmac_chan_reg_base(struct at_xdmac *atxdmac, unsigned int chan_nb)
 {
@@ -863,8 +864,12 @@ at_xdmac_interleaved_queue_desc(struct d
 	 * access. Hopefully we can access DDR through both ports (at least on
 	 * SAMA5D4x), so we can use the same interface for source and dest,
 	 * that solves the fact we don't know the direction.
+	 * ERRATA: Even if useless for memory transfers, the PERID has to not
+	 * match the one of another channel. If not, it could lead to spurious
+	 * flag status.
 	 */
-	u32			chan_cc = AT_XDMAC_CC_DIF(0)
+	u32			chan_cc = AT_XDMAC_CC_PERID(0x3f)
+					| AT_XDMAC_CC_DIF(0)
 					| AT_XDMAC_CC_SIF(0)
 					| AT_XDMAC_CC_MBSIZE_SIXTEEN
 					| AT_XDMAC_CC_TYPE_MEM_TRAN;
@@ -1041,8 +1046,12 @@ at_xdmac_prep_dma_memcpy(struct dma_chan
 	 * access DDR through both ports (at least on SAMA5D4x), so we can use
 	 * the same interface for source and dest, that solves the fact we
 	 * don't know the direction.
+	 * ERRATA: Even if useless for memory transfers, the PERID has to not
+	 * match the one of another channel. If not, it could lead to spurious
+	 * flag status.
 	 */
-	u32			chan_cc = AT_XDMAC_CC_DAM_INCREMENTED_AM
+	u32			chan_cc = AT_XDMAC_CC_PERID(0x3f)
+					| AT_XDMAC_CC_DAM_INCREMENTED_AM
 					| AT_XDMAC_CC_SAM_INCREMENTED_AM
 					| AT_XDMAC_CC_DIF(0)
 					| AT_XDMAC_CC_SIF(0)
@@ -1143,8 +1152,12 @@ static struct at_xdmac_desc *at_xdmac_me
 	 * access. Hopefully we can access DDR through both ports (at least on
 	 * SAMA5D4x), so we can use the same interface for source and dest,
 	 * that solves the fact we don't know the direction.
+	 * ERRATA: Even if useless for memory transfers, the PERID has to not
+	 * match the one of another channel. If not, it could lead to spurious
+	 * flag status.
 	 */
-	u32			chan_cc = AT_XDMAC_CC_DAM_UBS_AM
+	u32			chan_cc = AT_XDMAC_CC_PERID(0x3f)
+					| AT_XDMAC_CC_DAM_UBS_AM
 					| AT_XDMAC_CC_SAM_INCREMENTED_AM
 					| AT_XDMAC_CC_DIF(0)
 					| AT_XDMAC_CC_SIF(0)
@@ -1182,8 +1195,8 @@ static struct at_xdmac_desc *at_xdmac_me
 	desc->lld.mbr_cfg = chan_cc;
 
 	dev_dbg(chan2dev(chan),
-		"%s: lld: mbr_da=%pad, mbr_ds=%pad, mbr_ubc=0x%08x, mbr_cfg=0x%08x\n",
-		__func__, &desc->lld.mbr_da, &desc->lld.mbr_ds, desc->lld.mbr_ubc,
+		"%s: lld: mbr_da=%pad, mbr_ds=0x%08x, mbr_ubc=0x%08x, mbr_cfg=0x%08x\n",
+		__func__, &desc->lld.mbr_da, desc->lld.mbr_ds, desc->lld.mbr_ubc,
 		desc->lld.mbr_cfg);
 
 	return desc;
@@ -1383,10 +1396,11 @@ at_xdmac_tx_status(struct dma_chan *chan
 	struct at_xdmac_desc	*desc, *_desc;
 	struct list_head	*descs_list;
 	enum dma_status		ret;
-	int			residue;
-	u32			cur_nda, mask, value;
+	int			residue, retry;
+	u32			cur_nda, check_nda, cur_ubc, mask, value;
 	u8			dwidth = 0;
 	unsigned long		flags;
+	bool			initd;
 
 	ret = dma_cookie_status(chan, cookie, txstate);
 	if (ret == DMA_COMPLETE)
@@ -1411,7 +1425,16 @@ at_xdmac_tx_status(struct dma_chan *chan
 	residue = desc->xfer_size;
 	/*
 	 * Flush FIFO: only relevant when the transfer is source peripheral
-	 * synchronized.
+	 * synchronized. Flush is needed before reading CUBC because data in
+	 * the FIFO are not reported by CUBC. Reporting a residue of the
+	 * transfer length while we have data in FIFO can cause issue.
+	 * Usecase: atmel USART has a timeout which means I have received
+	 * characters but there is no more character received for a while. On
+	 * timeout, it requests the residue. If the data are in the DMA FIFO,
+	 * we will return a residue of the transfer length. It means no data
+	 * received. If an application is waiting for these data, it will hang
+	 * since we won't have another USART timeout without receiving new
+	 * data.
 	 */
 	mask = AT_XDMAC_CC_TYPE | AT_XDMAC_CC_DSYNC;
 	value = AT_XDMAC_CC_TYPE_PER_TRAN | AT_XDMAC_CC_DSYNC_PER2MEM;
@@ -1421,7 +1444,64 @@ at_xdmac_tx_status(struct dma_chan *chan
 			cpu_relax();
 	}
 
-	cur_nda = at_xdmac_chan_read(atchan, AT_XDMAC_CNDA) & 0xfffffffc;
+	/*
+	 * The easiest way to compute the residue should be to pause the DMA
+	 * but doing this can lead to miss some data as some devices don't
+	 * have FIFO.
+	 * We need to read several registers because:
+	 * - DMA is running therefore a descriptor change is possible while
+	 * reading these registers
+	 * - When the block transfer is done, the value of the CUBC register
+	 * is set to its initial value until the fetch of the next descriptor.
+	 * This value will corrupt the residue calculation so we have to skip
+	 * it.
+	 *
+	 * INITD --------                    ------------
+	 *              |____________________|
+	 *       _______________________  _______________
+	 * NDA       @desc2             \/   @desc3
+	 *       _______________________/\_______________
+	 *       __________  ___________  _______________
+	 * CUBC       0    \/ MAX desc1 \/  MAX desc2
+	 *       __________/\___________/\_______________
+	 *
+	 * Since descriptors are aligned on 64 bits, we can assume that
+	 * the update of NDA and CUBC is atomic.
+	 * Memory barriers are used to ensure the read order of the registers.
+	 * A max number of retries is set because unlikely it could never ends.
+	 */
+	for (retry = 0; retry < AT_XDMAC_RESIDUE_MAX_RETRIES; retry++) {
+		check_nda = at_xdmac_chan_read(atchan, AT_XDMAC_CNDA) & 0xfffffffc;
+		rmb();
+		initd = !!(at_xdmac_chan_read(atchan, AT_XDMAC_CC) & AT_XDMAC_CC_INITD);
+		rmb();
+		cur_ubc = at_xdmac_chan_read(atchan, AT_XDMAC_CUBC);
+		rmb();
+		cur_nda = at_xdmac_chan_read(atchan, AT_XDMAC_CNDA) & 0xfffffffc;
+		rmb();
+
+		if ((check_nda == cur_nda) && initd)
+			break;
+	}
+
+	if (unlikely(retry >= AT_XDMAC_RESIDUE_MAX_RETRIES)) {
+		ret = DMA_ERROR;
+		goto spin_unlock;
+	}
+
+	/*
+	 * Flush FIFO: only relevant when the transfer is source peripheral
+	 * synchronized. Another flush is needed here because CUBC is updated
+	 * when the controller sends the data write command. It can lead to
+	 * report data that are not written in the memory or the device. The
+	 * FIFO flush ensures that data are really written.
+	 */
+	if ((desc->lld.mbr_cfg & mask) == value) {
+		at_xdmac_write(atxdmac, AT_XDMAC_GSWF, atchan->mask);
+		while (!(at_xdmac_chan_read(atchan, AT_XDMAC_CIS) & AT_XDMAC_CIS_FIS))
+			cpu_relax();
+	}
+
 	/*
 	 * Remove size of all microblocks already transferred and the current
 	 * one. Then add the remaining size to transfer of the current
@@ -1434,7 +1514,7 @@ at_xdmac_tx_status(struct dma_chan *chan
 		if ((desc->lld.mbr_nda & 0xfffffffc) == cur_nda)
 			break;
 	}
-	residue += at_xdmac_chan_read(atchan, AT_XDMAC_CUBC) << dwidth;
+	residue += cur_ubc << dwidth;
 
 	dma_set_residue(txstate, residue);
 
@@ -1688,6 +1768,7 @@ static int at_xdmac_device_terminate_all
 	list_for_each_entry_safe(desc, _desc, &atchan->xfers_list, xfer_node)
 		at_xdmac_remove_xfer(atchan, desc);
 
+	clear_bit(AT_XDMAC_CHAN_IS_PAUSED, &atchan->status);
 	clear_bit(AT_XDMAC_CHAN_IS_CYCLIC, &atchan->status);
 	spin_unlock_irqrestore(&atchan->lock, flags);
 
@@ -1820,6 +1901,8 @@ static int atmel_xdmac_resume(struct dev
 		atchan = to_at_xdmac_chan(chan);
 		at_xdmac_chan_write(atchan, AT_XDMAC_CC, atchan->save_cc);
 		if (at_xdmac_chan_is_cyclic(atchan)) {
+			if (at_xdmac_chan_is_paused(atchan))
+				at_xdmac_device_resume(chan);
 			at_xdmac_chan_write(atchan, AT_XDMAC_CNDA, atchan->save_cnda);
 			at_xdmac_chan_write(atchan, AT_XDMAC_CNDC, atchan->save_cndc);
 			at_xdmac_chan_write(atchan, AT_XDMAC_CIE, atchan->save_cim);
@@ -1984,7 +2067,7 @@ err_dma_unregister:
 err_clk_disable:
 	clk_disable_unprepare(atxdmac->clk);
 err_free_irq:
-	free_irq(atxdmac->irq, atxdmac->dma.dev);
+	free_irq(atxdmac->irq, atxdmac);
 	return ret;
 }
 
@@ -2000,7 +2083,7 @@ static int at_xdmac_remove(struct platfo
 
 	synchronize_irq(atxdmac->irq);
 
-	free_irq(atxdmac->irq, atxdmac->dma.dev);
+	free_irq(atxdmac->irq, atxdmac);
 
 	for (i = 0; i < atxdmac->dma.chancnt; i++) {
 		struct at_xdmac_chan *atchan = &atxdmac->chan[i];
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/dma/dmaengine.c linux-libre-4.4.107-gnu/drivers/dma/dmaengine.c
--- linux-libre-4.4-gnu/drivers/dma/dmaengine.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/dma/dmaengine.c	2017-12-20 04:05:01.000000000 -0500
@@ -1023,12 +1023,14 @@ static struct dmaengine_unmap_pool *__ge
 	switch (order) {
 	case 0 ... 1:
 		return &unmap_pool[0];
+#if IS_ENABLED(CONFIG_DMA_ENGINE_RAID)
 	case 2 ... 4:
 		return &unmap_pool[1];
 	case 5 ... 7:
 		return &unmap_pool[2];
 	case 8:
 		return &unmap_pool[3];
+#endif
 	default:
 		BUG();
 		return NULL;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/dma/dmatest.c linux-libre-4.4.107-gnu/drivers/dma/dmatest.c
--- linux-libre-4.4-gnu/drivers/dma/dmatest.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/dma/dmatest.c	2017-12-20 04:05:01.000000000 -0500
@@ -148,6 +148,12 @@ MODULE_PARM_DESC(run, "Run the test (def
 #define PATTERN_OVERWRITE	0x20
 #define PATTERN_COUNT_MASK	0x1f
 
+/* poor man's completion - we want to use wait_event_freezable() on it */
+struct dmatest_done {
+	bool			done;
+	wait_queue_head_t	*wait;
+};
+
 struct dmatest_thread {
 	struct list_head	node;
 	struct dmatest_info	*info;
@@ -156,6 +162,8 @@ struct dmatest_thread {
 	u8			**srcs;
 	u8			**dsts;
 	enum dma_transaction_type type;
+	wait_queue_head_t done_wait;
+	struct dmatest_done test_done;
 	bool			done;
 };
 
@@ -316,18 +324,25 @@ static unsigned int dmatest_verify(u8 **
 	return error_count;
 }
 
-/* poor man's completion - we want to use wait_event_freezable() on it */
-struct dmatest_done {
-	bool			done;
-	wait_queue_head_t	*wait;
-};
 
 static void dmatest_callback(void *arg)
 {
 	struct dmatest_done *done = arg;
-
-	done->done = true;
-	wake_up_all(done->wait);
+	struct dmatest_thread *thread =
+		container_of(arg, struct dmatest_thread, done_wait);
+	if (!thread->done) {
+		done->done = true;
+		wake_up_all(done->wait);
+	} else {
+		/*
+		 * If thread->done, it means that this callback occurred
+		 * after the parent thread has cleaned up. This can
+		 * happen in the case that driver doesn't implement
+		 * the terminate_all() functionality and a dma operation
+		 * did not occur within the timeout period
+		 */
+		WARN(1, "dmatest: Kernel memory may be corrupted!!\n");
+	}
 }
 
 static unsigned int min_odd(unsigned int x, unsigned int y)
@@ -398,9 +413,8 @@ static unsigned long long dmatest_KBs(s6
  */
 static int dmatest_func(void *data)
 {
-	DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_wait);
 	struct dmatest_thread	*thread = data;
-	struct dmatest_done	done = { .wait = &done_wait };
+	struct dmatest_done	*done = &thread->test_done;
 	struct dmatest_info	*info;
 	struct dmatest_params	*params;
 	struct dma_chan		*chan;
@@ -605,9 +619,9 @@ static int dmatest_func(void *data)
 			continue;
 		}
 
-		done.done = false;
+		done->done = false;
 		tx->callback = dmatest_callback;
-		tx->callback_param = &done;
+		tx->callback_param = done;
 		cookie = tx->tx_submit(tx);
 
 		if (dma_submit_error(cookie)) {
@@ -620,20 +634,12 @@ static int dmatest_func(void *data)
 		}
 		dma_async_issue_pending(chan);
 
-		wait_event_freezable_timeout(done_wait, done.done,
+		wait_event_freezable_timeout(thread->done_wait, done->done,
 					     msecs_to_jiffies(params->timeout));
 
 		status = dma_async_is_tx_complete(chan, cookie, NULL, NULL);
 
-		if (!done.done) {
-			/*
-			 * We're leaving the timed out dma operation with
-			 * dangling pointer to done_wait.  To make this
-			 * correct, we'll need to allocate wait_done for
-			 * each test iteration and perform "who's gonna
-			 * free it this time?" dancing.  For now, just
-			 * leave it dangling.
-			 */
+		if (!done->done) {
 			dmaengine_unmap_put(um);
 			result("test timed out", total_tests, src_off, dst_off,
 			       len, 0);
@@ -707,7 +713,7 @@ err_thread_type:
 		dmatest_KBs(runtime, total_len), ret);
 
 	/* terminate all transfers on specified channels */
-	if (ret)
+	if (ret || failed_tests)
 		dmaengine_terminate_all(chan);
 
 	thread->done = true;
@@ -765,6 +771,8 @@ static int dmatest_add_threads(struct dm
 		thread->info = info;
 		thread->chan = dtc->chan;
 		thread->type = type;
+		thread->test_done.wait = &thread->done_wait;
+		init_waitqueue_head(&thread->done_wait);
 		smp_wmb();
 		thread->task = kthread_create(dmatest_func, thread, "%s-%s%u",
 				dma_chan_name(chan), op, i);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/dma/dw/core.c linux-libre-4.4.107-gnu/drivers/dma/dw/core.c
--- linux-libre-4.4-gnu/drivers/dma/dw/core.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/dma/dw/core.c	2017-12-20 04:05:01.000000000 -0500
@@ -130,26 +130,14 @@ static void dwc_desc_put(struct dw_dma_c
 static void dwc_initialize(struct dw_dma_chan *dwc)
 {
 	struct dw_dma *dw = to_dw_dma(dwc->chan.device);
-	struct dw_dma_slave *dws = dwc->chan.private;
 	u32 cfghi = DWC_CFGH_FIFO_MODE;
 	u32 cfglo = DWC_CFGL_CH_PRIOR(dwc->priority);
 
 	if (dwc->initialized == true)
 		return;
 
-	if (dws) {
-		/*
-		 * We need controller-specific data to set up slave
-		 * transfers.
-		 */
-		BUG_ON(!dws->dma_dev || dws->dma_dev != dw->dma.dev);
-
-		cfghi |= DWC_CFGH_DST_PER(dws->dst_id);
-		cfghi |= DWC_CFGH_SRC_PER(dws->src_id);
-	} else {
-		cfghi |= DWC_CFGH_DST_PER(dwc->dst_id);
-		cfghi |= DWC_CFGH_SRC_PER(dwc->src_id);
-	}
+	cfghi |= DWC_CFGH_DST_PER(dwc->dst_id);
+	cfghi |= DWC_CFGH_SRC_PER(dwc->src_id);
 
 	channel_writel(dwc, CFG_LO, cfglo);
 	channel_writel(dwc, CFG_HI, cfghi);
@@ -536,16 +524,17 @@ EXPORT_SYMBOL(dw_dma_get_dst_addr);
 
 /* Called with dwc->lock held and all DMAC interrupts disabled */
 static void dwc_handle_cyclic(struct dw_dma *dw, struct dw_dma_chan *dwc,
-		u32 status_err, u32 status_xfer)
+		u32 status_block, u32 status_err, u32 status_xfer)
 {
 	unsigned long flags;
 
-	if (dwc->mask) {
+	if (status_block & dwc->mask) {
 		void (*callback)(void *param);
 		void *callback_param;
 
 		dev_vdbg(chan2dev(&dwc->chan), "new cyclic period llp 0x%08x\n",
 				channel_readl(dwc, LLP));
+		dma_writel(dw, CLEAR.BLOCK, dwc->mask);
 
 		callback = dwc->cdesc->period_callback;
 		callback_param = dwc->cdesc->period_callback_param;
@@ -577,6 +566,7 @@ static void dwc_handle_cyclic(struct dw_
 		channel_writel(dwc, CTL_LO, 0);
 		channel_writel(dwc, CTL_HI, 0);
 
+		dma_writel(dw, CLEAR.BLOCK, dwc->mask);
 		dma_writel(dw, CLEAR.ERROR, dwc->mask);
 		dma_writel(dw, CLEAR.XFER, dwc->mask);
 
@@ -585,6 +575,9 @@ static void dwc_handle_cyclic(struct dw_
 
 		spin_unlock_irqrestore(&dwc->lock, flags);
 	}
+
+	/* Re-enable interrupts */
+	channel_set_bit(dw, MASK.BLOCK, dwc->mask);
 }
 
 /* ------------------------------------------------------------------------- */
@@ -593,10 +586,12 @@ static void dw_dma_tasklet(unsigned long
 {
 	struct dw_dma *dw = (struct dw_dma *)data;
 	struct dw_dma_chan *dwc;
+	u32 status_block;
 	u32 status_xfer;
 	u32 status_err;
 	int i;
 
+	status_block = dma_readl(dw, RAW.BLOCK);
 	status_xfer = dma_readl(dw, RAW.XFER);
 	status_err = dma_readl(dw, RAW.ERROR);
 
@@ -605,16 +600,15 @@ static void dw_dma_tasklet(unsigned long
 	for (i = 0; i < dw->dma.chancnt; i++) {
 		dwc = &dw->chan[i];
 		if (test_bit(DW_DMA_IS_CYCLIC, &dwc->flags))
-			dwc_handle_cyclic(dw, dwc, status_err, status_xfer);
+			dwc_handle_cyclic(dw, dwc, status_block, status_err,
+					status_xfer);
 		else if (status_err & (1 << i))
 			dwc_handle_error(dw, dwc);
 		else if (status_xfer & (1 << i))
 			dwc_scan_descriptors(dw, dwc);
 	}
 
-	/*
-	 * Re-enable interrupts.
-	 */
+	/* Re-enable interrupts */
 	channel_set_bit(dw, MASK.XFER, dw->all_chan_mask);
 	channel_set_bit(dw, MASK.ERROR, dw->all_chan_mask);
 }
@@ -635,6 +629,7 @@ static irqreturn_t dw_dma_interrupt(int
 	 * softirq handler.
 	 */
 	channel_clear_bit(dw, MASK.XFER, dw->all_chan_mask);
+	channel_clear_bit(dw, MASK.BLOCK, dw->all_chan_mask);
 	channel_clear_bit(dw, MASK.ERROR, dw->all_chan_mask);
 
 	status = dma_readl(dw, STATUS_INT);
@@ -645,6 +640,7 @@ static irqreturn_t dw_dma_interrupt(int
 
 		/* Try to recover */
 		channel_clear_bit(dw, MASK.XFER, (1 << 8) - 1);
+		channel_clear_bit(dw, MASK.BLOCK, (1 << 8) - 1);
 		channel_clear_bit(dw, MASK.SRC_TRAN, (1 << 8) - 1);
 		channel_clear_bit(dw, MASK.DST_TRAN, (1 << 8) - 1);
 		channel_clear_bit(dw, MASK.ERROR, (1 << 8) - 1);
@@ -928,7 +924,7 @@ bool dw_dma_filter(struct dma_chan *chan
 	struct dw_dma_chan *dwc = to_dw_dma_chan(chan);
 	struct dw_dma_slave *dws = param;
 
-	if (!dws || dws->dma_dev != chan->device->dev)
+	if (dws->dma_dev != chan->device->dev)
 		return false;
 
 	/* We have to copy data since dws can be temporary storage */
@@ -1111,6 +1107,7 @@ static void dw_dma_off(struct dw_dma *dw
 	dma_writel(dw, CFG, 0);
 
 	channel_clear_bit(dw, MASK.XFER, dw->all_chan_mask);
+	channel_clear_bit(dw, MASK.BLOCK, dw->all_chan_mask);
 	channel_clear_bit(dw, MASK.SRC_TRAN, dw->all_chan_mask);
 	channel_clear_bit(dw, MASK.DST_TRAN, dw->all_chan_mask);
 	channel_clear_bit(dw, MASK.ERROR, dw->all_chan_mask);
@@ -1151,6 +1148,14 @@ static int dwc_alloc_chan_resources(stru
 	 * doesn't mean what you think it means), and status writeback.
 	 */
 
+	/*
+	 * We need controller-specific data to set up slave transfers.
+	 */
+	if (chan->private && !dw_dma_filter(chan, chan->private)) {
+		dev_warn(chan2dev(chan), "Wrong controller-specific data\n");
+		return -EINVAL;
+	}
+
 	/* Enable controller here if needed */
 	if (!dw->in_use)
 		dw_dma_on(dw);
@@ -1212,10 +1217,19 @@ static void dwc_free_chan_resources(stru
 	spin_lock_irqsave(&dwc->lock, flags);
 	list_splice_init(&dwc->free_list, &list);
 	dwc->descs_allocated = 0;
+
+	/* Clear custom channel configuration */
+	dwc->src_id = 0;
+	dwc->dst_id = 0;
+
+	dwc->src_master = 0;
+	dwc->dst_master = 0;
+
 	dwc->initialized = false;
 
 	/* Disable interrupts */
 	channel_clear_bit(dw, MASK.XFER, dwc->mask);
+	channel_clear_bit(dw, MASK.BLOCK, dwc->mask);
 	channel_clear_bit(dw, MASK.ERROR, dwc->mask);
 
 	spin_unlock_irqrestore(&dwc->lock, flags);
@@ -1245,7 +1259,7 @@ static void dwc_free_chan_resources(stru
 int dw_dma_cyclic_start(struct dma_chan *chan)
 {
 	struct dw_dma_chan	*dwc = to_dw_dma_chan(chan);
-	struct dw_dma		*dw = to_dw_dma(dwc->chan.device);
+	struct dw_dma		*dw = to_dw_dma(chan->device);
 	unsigned long		flags;
 
 	if (!test_bit(DW_DMA_IS_CYCLIC, &dwc->flags)) {
@@ -1255,25 +1269,10 @@ int dw_dma_cyclic_start(struct dma_chan
 
 	spin_lock_irqsave(&dwc->lock, flags);
 
-	/* Assert channel is idle */
-	if (dma_readl(dw, CH_EN) & dwc->mask) {
-		dev_err(chan2dev(&dwc->chan),
-			"%s: BUG: Attempted to start non-idle channel\n",
-			__func__);
-		dwc_dump_chan_regs(dwc);
-		spin_unlock_irqrestore(&dwc->lock, flags);
-		return -EBUSY;
-	}
-
-	dma_writel(dw, CLEAR.ERROR, dwc->mask);
-	dma_writel(dw, CLEAR.XFER, dwc->mask);
-
-	/* Setup DMAC channel registers */
-	channel_writel(dwc, LLP, dwc->cdesc->desc[0]->txd.phys);
-	channel_writel(dwc, CTL_LO, DWC_CTLL_LLP_D_EN | DWC_CTLL_LLP_S_EN);
-	channel_writel(dwc, CTL_HI, 0);
+	/* Enable interrupts to perform cyclic transfer */
+	channel_set_bit(dw, MASK.BLOCK, dwc->mask);
 
-	channel_set_bit(dw, CH_EN, dwc->mask);
+	dwc_dostart(dwc, dwc->cdesc->desc[0]);
 
 	spin_unlock_irqrestore(&dwc->lock, flags);
 
@@ -1479,6 +1478,7 @@ void dw_dma_cyclic_free(struct dma_chan
 
 	dwc_chan_disable(dw, dwc);
 
+	dma_writel(dw, CLEAR.BLOCK, dwc->mask);
 	dma_writel(dw, CLEAR.ERROR, dwc->mask);
 	dma_writel(dw, CLEAR.XFER, dwc->mask);
 
@@ -1567,9 +1567,6 @@ int dw_dma_probe(struct dw_dma_chip *chi
 	/* Force dma off, just in case */
 	dw_dma_off(dw);
 
-	/* Disable BLOCK interrupts as well */
-	channel_clear_bit(dw, MASK.BLOCK, dw->all_chan_mask);
-
 	/* Create a pool of consistent memory blocks for hardware descriptors */
 	dw->desc_pool = dmam_pool_create("dw_dmac_desc_pool", chip->dev,
 					 sizeof(struct dw_desc), 4, 0);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/dma/edma.c linux-libre-4.4.107-gnu/drivers/dma/edma.c
--- linux-libre-4.4-gnu/drivers/dma/edma.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/dma/edma.c	2017-12-20 04:05:01.000000000 -0500
@@ -1126,11 +1126,24 @@ static struct dma_async_tx_descriptor *e
 	struct edma_desc *edesc;
 	struct device *dev = chan->device->dev;
 	struct edma_chan *echan = to_edma_chan(chan);
-	unsigned int width, pset_len;
+	unsigned int width, pset_len, array_size;
 
 	if (unlikely(!echan || !len))
 		return NULL;
 
+	/* Align the array size (acnt block) with the transfer properties */
+	switch (__ffs((src | dest | len))) {
+	case 0:
+		array_size = SZ_32K - 1;
+		break;
+	case 1:
+		array_size = SZ_32K - 2;
+		break;
+	default:
+		array_size = SZ_32K - 4;
+		break;
+	}
+
 	if (len < SZ_64K) {
 		/*
 		 * Transfer size less than 64K can be handled with one paRAM
@@ -1152,7 +1165,7 @@ static struct dma_async_tx_descriptor *e
 		 * When the full_length is multibple of 32767 one slot can be
 		 * used to complete the transfer.
 		 */
-		width = SZ_32K - 1;
+		width = array_size;
 		pset_len = rounddown(len, width);
 		/* One slot is enough for lengths multiple of (SZ_32K -1) */
 		if (unlikely(pset_len == len))
@@ -1202,7 +1215,7 @@ static struct dma_async_tx_descriptor *e
 		}
 		dest += pset_len;
 		src += pset_len;
-		pset_len = width = len % (SZ_32K - 1);
+		pset_len = width = len % array_size;
 
 		ret = edma_config_pset(chan, &edesc->pset[1], src, dest, 1,
 				       width, pset_len, DMA_MEM_TO_MEM);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/dma/ep93xx_dma.c linux-libre-4.4.107-gnu/drivers/dma/ep93xx_dma.c
--- linux-libre-4.4-gnu/drivers/dma/ep93xx_dma.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/dma/ep93xx_dma.c	2017-12-20 04:05:01.000000000 -0500
@@ -325,6 +325,8 @@ static int m2p_hw_setup(struct ep93xx_dm
 		| M2P_CONTROL_ENABLE;
 	m2p_set_control(edmac, control);
 
+	edmac->buffer = 0;
+
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/dma/hsu/hsu.c linux-libre-4.4.107-gnu/drivers/dma/hsu/hsu.c
--- linux-libre-4.4-gnu/drivers/dma/hsu/hsu.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/dma/hsu/hsu.c	2017-12-20 04:05:01.000000000 -0500
@@ -135,7 +135,7 @@ static u32 hsu_dma_chan_get_sr(struct hs
 	sr = hsu_chan_readl(hsuc, HSU_CH_SR);
 	spin_unlock_irqrestore(&hsuc->vchan.lock, flags);
 
-	return sr;
+	return sr & ~(HSU_CH_SR_DESCE_ANY | HSU_CH_SR_CDESC_ANY);
 }
 
 irqreturn_t hsu_dma_irq(struct hsu_dma_chip *chip, unsigned short nr)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/dma/hsu/hsu.h linux-libre-4.4.107-gnu/drivers/dma/hsu/hsu.h
--- linux-libre-4.4-gnu/drivers/dma/hsu/hsu.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/dma/hsu/hsu.h	2017-12-20 04:05:01.000000000 -0500
@@ -41,6 +41,9 @@
 #define HSU_CH_SR_DESCTO(x)	BIT(8 + (x))
 #define HSU_CH_SR_DESCTO_ANY	(BIT(11) | BIT(10) | BIT(9) | BIT(8))
 #define HSU_CH_SR_CHE		BIT(15)
+#define HSU_CH_SR_DESCE(x)	BIT(16 + (x))
+#define HSU_CH_SR_DESCE_ANY	(BIT(19) | BIT(18) | BIT(17) | BIT(16))
+#define HSU_CH_SR_CDESC_ANY	(BIT(31) | BIT(30))
 
 /* Bits in HSU_CH_CR */
 #define HSU_CH_CR_CHA		BIT(0)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/dma/ioat/hw.h linux-libre-4.4.107-gnu/drivers/dma/ioat/hw.h
--- linux-libre-4.4-gnu/drivers/dma/ioat/hw.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/dma/ioat/hw.h	2017-12-20 04:05:01.000000000 -0500
@@ -64,6 +64,8 @@
 #define PCI_DEVICE_ID_INTEL_IOAT_BDX8	0x6f2e
 #define PCI_DEVICE_ID_INTEL_IOAT_BDX9	0x6f2f
 
+#define PCI_DEVICE_ID_INTEL_IOAT_SKX	0x2021
+
 #define IOAT_VER_1_2            0x12    /* Version 1.2 */
 #define IOAT_VER_2_0            0x20    /* Version 2.0 */
 #define IOAT_VER_3_0            0x30    /* Version 3.0 */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/dma/ioat/init.c linux-libre-4.4.107-gnu/drivers/dma/ioat/init.c
--- linux-libre-4.4-gnu/drivers/dma/ioat/init.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/dma/ioat/init.c	2017-12-20 04:05:01.000000000 -0500
@@ -105,6 +105,8 @@ static struct pci_device_id ioat_pci_tbl
 	{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_IOAT_BDX8) },
 	{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_IOAT_BDX9) },
 
+	{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_IOAT_SKX) },
+
 	/* I/OAT v3.3 platforms */
 	{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_IOAT_BWD0) },
 	{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_IOAT_BWD1) },
@@ -250,10 +252,15 @@ static bool is_bdx_ioat(struct pci_dev *
 	}
 }
 
+static inline bool is_skx_ioat(struct pci_dev *pdev)
+{
+	return (pdev->device == PCI_DEVICE_ID_INTEL_IOAT_SKX) ? true : false;
+}
+
 static bool is_xeon_cb32(struct pci_dev *pdev)
 {
 	return is_jf_ioat(pdev) || is_snb_ioat(pdev) || is_ivb_ioat(pdev) ||
-		is_hsw_ioat(pdev) || is_bdx_ioat(pdev);
+		is_hsw_ioat(pdev) || is_bdx_ioat(pdev) || is_skx_ioat(pdev);
 }
 
 bool is_bwd_ioat(struct pci_dev *pdev)
@@ -1350,6 +1357,8 @@ static int ioat_pci_probe(struct pci_dev
 
 	device->version = readb(device->reg_base + IOAT_VER_OFFSET);
 	if (device->version >= IOAT_VER_3_0) {
+		if (is_skx_ioat(pdev))
+			device->version = IOAT_VER_3_2;
 		err = ioat3_dma_probe(device, ioat_dca_enabled);
 
 		if (device->version >= IOAT_VER_3_3)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/dma/ipu/ipu_irq.c linux-libre-4.4.107-gnu/drivers/dma/ipu/ipu_irq.c
--- linux-libre-4.4-gnu/drivers/dma/ipu/ipu_irq.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/dma/ipu/ipu_irq.c	2017-12-20 04:05:01.000000000 -0500
@@ -272,7 +272,7 @@ static void ipu_irq_handler(struct irq_d
 	u32 status;
 	int i, line;
 
-	for (i = IPU_IRQ_NR_FN_BANKS; i < IPU_IRQ_NR_BANKS; i++) {
+	for (i = 0; i < IPU_IRQ_NR_BANKS; i++) {
 		struct ipu_irq_bank *bank = irq_bank + i;
 
 		raw_spin_lock(&bank_lock);
@@ -286,22 +286,21 @@ static void ipu_irq_handler(struct irq_d
 		raw_spin_unlock(&bank_lock);
 		while ((line = ffs(status))) {
 			struct ipu_irq_map *map;
-			unsigned int irq = NO_IRQ;
+			unsigned int irq;
 
 			line--;
 			status &= ~(1UL << line);
 
 			raw_spin_lock(&bank_lock);
 			map = src2map(32 * i + line);
-			if (map)
-				irq = map->irq;
-			raw_spin_unlock(&bank_lock);
-
 			if (!map) {
+				raw_spin_unlock(&bank_lock);
 				pr_err("IPU: Interrupt on unmapped source %u bank %d\n",
 				       line, i);
 				continue;
 			}
+			irq = map->irq;
+			raw_spin_unlock(&bank_lock);
 			generic_handle_irq(irq);
 		}
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/dma/pl330.c linux-libre-4.4.107-gnu/drivers/dma/pl330.c
--- linux-libre-4.4-gnu/drivers/dma/pl330.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/dma/pl330.c	2017-12-20 04:05:01.000000000 -0500
@@ -445,6 +445,9 @@ struct dma_pl330_chan {
 
 	/* for cyclic capability */
 	bool cyclic;
+
+	/* for runtime pm tracking */
+	bool active;
 };
 
 struct pl330_dmac {
@@ -1654,7 +1657,6 @@ static bool _chan_ns(const struct pl330_
 static struct pl330_thread *pl330_request_channel(struct pl330_dmac *pl330)
 {
 	struct pl330_thread *thrd = NULL;
-	unsigned long flags;
 	int chans, i;
 
 	if (pl330->state == DYING)
@@ -1662,8 +1664,6 @@ static struct pl330_thread *pl330_reques
 
 	chans = pl330->pcfg.num_chan;
 
-	spin_lock_irqsave(&pl330->lock, flags);
-
 	for (i = 0; i < chans; i++) {
 		thrd = &pl330->channels[i];
 		if ((thrd->free) && (!_manager_ns(thrd) ||
@@ -1681,8 +1681,6 @@ static struct pl330_thread *pl330_reques
 		thrd = NULL;
 	}
 
-	spin_unlock_irqrestore(&pl330->lock, flags);
-
 	return thrd;
 }
 
@@ -1700,7 +1698,6 @@ static inline void _free_event(struct pl
 static void pl330_release_channel(struct pl330_thread *thrd)
 {
 	struct pl330_dmac *pl330;
-	unsigned long flags;
 
 	if (!thrd || thrd->free)
 		return;
@@ -1712,10 +1709,8 @@ static void pl330_release_channel(struct
 
 	pl330 = thrd->dmac;
 
-	spin_lock_irqsave(&pl330->lock, flags);
 	_free_event(thrd, thrd->ev);
 	thrd->free = true;
-	spin_unlock_irqrestore(&pl330->lock, flags);
 }
 
 /* Initialize the structure for PL330 configuration, that can be used
@@ -1994,6 +1989,7 @@ static void pl330_tasklet(unsigned long
 		_stop(pch->thread);
 		spin_unlock(&pch->thread->dmac->lock);
 		power_down = true;
+		pch->active = false;
 	} else {
 		/* Make sure the PL330 Channel thread is active */
 		spin_lock(&pch->thread->dmac->lock);
@@ -2015,6 +2011,7 @@ static void pl330_tasklet(unsigned long
 			desc->status = PREP;
 			list_move_tail(&desc->node, &pch->work_list);
 			if (power_down) {
+				pch->active = true;
 				spin_lock(&pch->thread->dmac->lock);
 				_start(pch->thread);
 				spin_unlock(&pch->thread->dmac->lock);
@@ -2080,20 +2077,20 @@ static int pl330_alloc_chan_resources(st
 	struct pl330_dmac *pl330 = pch->dmac;
 	unsigned long flags;
 
-	spin_lock_irqsave(&pch->lock, flags);
+	spin_lock_irqsave(&pl330->lock, flags);
 
 	dma_cookie_init(chan);
 	pch->cyclic = false;
 
 	pch->thread = pl330_request_channel(pl330);
 	if (!pch->thread) {
-		spin_unlock_irqrestore(&pch->lock, flags);
+		spin_unlock_irqrestore(&pl330->lock, flags);
 		return -ENOMEM;
 	}
 
 	tasklet_init(&pch->task, pl330_tasklet, (unsigned long) pch);
 
-	spin_unlock_irqrestore(&pch->lock, flags);
+	spin_unlock_irqrestore(&pl330->lock, flags);
 
 	return 1;
 }
@@ -2129,6 +2126,7 @@ static int pl330_terminate_all(struct dm
 	unsigned long flags;
 	struct pl330_dmac *pl330 = pch->dmac;
 	LIST_HEAD(list);
+	bool power_down = false;
 
 	pm_runtime_get_sync(pl330->ddma.dev);
 	spin_lock_irqsave(&pch->lock, flags);
@@ -2139,6 +2137,8 @@ static int pl330_terminate_all(struct dm
 	pch->thread->req[0].desc = NULL;
 	pch->thread->req[1].desc = NULL;
 	pch->thread->req_running = -1;
+	power_down = pch->active;
+	pch->active = false;
 
 	/* Mark all desc done */
 	list_for_each_entry(desc, &pch->submitted_list, node) {
@@ -2156,6 +2156,8 @@ static int pl330_terminate_all(struct dm
 	list_splice_tail_init(&pch->completed_list, &pl330->desc_pool);
 	spin_unlock_irqrestore(&pch->lock, flags);
 	pm_runtime_mark_last_busy(pl330->ddma.dev);
+	if (power_down)
+		pm_runtime_put_autosuspend(pl330->ddma.dev);
 	pm_runtime_put_autosuspend(pl330->ddma.dev);
 
 	return 0;
@@ -2191,12 +2193,13 @@ static int pl330_pause(struct dma_chan *
 static void pl330_free_chan_resources(struct dma_chan *chan)
 {
 	struct dma_pl330_chan *pch = to_pchan(chan);
+	struct pl330_dmac *pl330 = pch->dmac;
 	unsigned long flags;
 
 	tasklet_kill(&pch->task);
 
 	pm_runtime_get_sync(pch->dmac->ddma.dev);
-	spin_lock_irqsave(&pch->lock, flags);
+	spin_lock_irqsave(&pl330->lock, flags);
 
 	pl330_release_channel(pch->thread);
 	pch->thread = NULL;
@@ -2204,7 +2207,7 @@ static void pl330_free_chan_resources(st
 	if (pch->cyclic)
 		list_splice_tail_init(&pch->work_list, &pch->dmac->desc_pool);
 
-	spin_unlock_irqrestore(&pch->lock, flags);
+	spin_unlock_irqrestore(&pl330->lock, flags);
 	pm_runtime_mark_last_busy(pch->dmac->ddma.dev);
 	pm_runtime_put_autosuspend(pch->dmac->ddma.dev);
 }
@@ -2302,6 +2305,7 @@ static void pl330_issue_pending(struct d
 		 * updated on work_list emptiness status.
 		 */
 		WARN_ON(list_empty(&pch->submitted_list));
+		pch->active = true;
 		pm_runtime_get_sync(pch->dmac->ddma.dev);
 	}
 	list_splice_tail_init(&pch->submitted_list, &pch->work_list);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/dma/pxa_dma.c linux-libre-4.4.107-gnu/drivers/dma/pxa_dma.c
--- linux-libre-4.4-gnu/drivers/dma/pxa_dma.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/dma/pxa_dma.c	2017-12-20 04:05:01.000000000 -0500
@@ -122,6 +122,7 @@ struct pxad_chan {
 struct pxad_device {
 	struct dma_device		slave;
 	int				nr_chans;
+	int				nr_requestors;
 	void __iomem			*base;
 	struct pxad_phy			*phys;
 	spinlock_t			phy_lock;	/* Phy association */
@@ -473,7 +474,7 @@ static void pxad_free_phy(struct pxad_ch
 		return;
 
 	/* clear the channel mapping in DRCMR */
-	if (chan->drcmr <= DRCMR_CHLNUM) {
+	if (chan->drcmr <= pdev->nr_requestors) {
 		reg = pxad_drcmr(chan->drcmr);
 		writel_relaxed(0, chan->phy->base + reg);
 	}
@@ -509,6 +510,7 @@ static bool is_running_chan_misaligned(s
 
 static void phy_enable(struct pxad_phy *phy, bool misaligned)
 {
+	struct pxad_device *pdev;
 	u32 reg, dalgn;
 
 	if (!phy->vchan)
@@ -518,7 +520,8 @@ static void phy_enable(struct pxad_phy *
 		"%s(); phy=%p(%d) misaligned=%d\n", __func__,
 		phy, phy->idx, misaligned);
 
-	if (phy->vchan->drcmr <= DRCMR_CHLNUM) {
+	pdev = to_pxad_dev(phy->vchan->vc.chan.device);
+	if (phy->vchan->drcmr <= pdev->nr_requestors) {
 		reg = pxad_drcmr(phy->vchan->drcmr);
 		writel_relaxed(DRCMR_MAPVLD | phy->idx, phy->base + reg);
 	}
@@ -583,6 +586,8 @@ static void set_updater_desc(struct pxad
 		(PXA_DCMD_LENGTH & sizeof(u32));
 	if (flags & DMA_PREP_INTERRUPT)
 		updater->dcmd |= PXA_DCMD_ENDIRQEN;
+	if (sw_desc->cyclic)
+		sw_desc->hw_desc[sw_desc->nb_desc - 2]->ddadr = sw_desc->first;
 }
 
 static bool is_desc_completed(struct virt_dma_desc *vd)
@@ -673,6 +678,10 @@ static irqreturn_t pxad_chan_handler(int
 		dev_dbg(&chan->vc.chan.dev->device,
 			"%s(): checking txd %p[%x]: completed=%d\n",
 			__func__, vd, vd->tx.cookie, is_desc_completed(vd));
+		if (to_pxad_sw_desc(vd)->cyclic) {
+			vchan_cyclic_callback(vd);
+			break;
+		}
 		if (is_desc_completed(vd)) {
 			list_del(&vd->node);
 			vchan_cookie_complete(vd);
@@ -908,6 +917,7 @@ static void pxad_get_config(struct pxad_
 {
 	u32 maxburst = 0, dev_addr = 0;
 	enum dma_slave_buswidth width = DMA_SLAVE_BUSWIDTH_UNDEFINED;
+	struct pxad_device *pdev = to_pxad_dev(chan->vc.chan.device);
 
 	*dcmd = 0;
 	if (dir == DMA_DEV_TO_MEM) {
@@ -916,7 +926,7 @@ static void pxad_get_config(struct pxad_
 		dev_addr = chan->cfg.src_addr;
 		*dev_src = dev_addr;
 		*dcmd |= PXA_DCMD_INCTRGADDR;
-		if (chan->drcmr <= DRCMR_CHLNUM)
+		if (chan->drcmr <= pdev->nr_requestors)
 			*dcmd |= PXA_DCMD_FLOWSRC;
 	}
 	if (dir == DMA_MEM_TO_DEV) {
@@ -925,7 +935,7 @@ static void pxad_get_config(struct pxad_
 		dev_addr = chan->cfg.dst_addr;
 		*dev_dst = dev_addr;
 		*dcmd |= PXA_DCMD_INCSRCADDR;
-		if (chan->drcmr <= DRCMR_CHLNUM)
+		if (chan->drcmr <= pdev->nr_requestors)
 			*dcmd |= PXA_DCMD_FLOWTRG;
 	}
 	if (dir == DMA_MEM_TO_MEM)
@@ -1080,7 +1090,7 @@ pxad_prep_dma_cyclic(struct dma_chan *dc
 		return NULL;
 
 	pxad_get_config(chan, dir, &dcmd, &dsadr, &dtadr);
-	dcmd |= PXA_DCMD_ENDIRQEN | (PXA_DCMD_LENGTH | period_len);
+	dcmd |= PXA_DCMD_ENDIRQEN | (PXA_DCMD_LENGTH & period_len);
 	dev_dbg(&chan->vc.chan.dev->device,
 		"%s(): buf_addr=0x%lx len=%zu period=%zu dir=%d flags=%lx\n",
 		__func__, (unsigned long)buf_addr, len, period_len, dir, flags);
@@ -1335,13 +1345,15 @@ static struct dma_chan *pxad_dma_xlate(s
 
 static int pxad_init_dmadev(struct platform_device *op,
 			    struct pxad_device *pdev,
-			    unsigned int nr_phy_chans)
+			    unsigned int nr_phy_chans,
+			    unsigned int nr_requestors)
 {
 	int ret;
 	unsigned int i;
 	struct pxad_chan *c;
 
 	pdev->nr_chans = nr_phy_chans;
+	pdev->nr_requestors = nr_requestors;
 	INIT_LIST_HEAD(&pdev->slave.channels);
 	pdev->slave.device_alloc_chan_resources = pxad_alloc_chan_resources;
 	pdev->slave.device_free_chan_resources = pxad_free_chan_resources;
@@ -1376,7 +1388,7 @@ static int pxad_probe(struct platform_de
 	const struct of_device_id *of_id;
 	struct mmp_dma_platdata *pdata = dev_get_platdata(&op->dev);
 	struct resource *iores;
-	int ret, dma_channels = 0;
+	int ret, dma_channels = 0, nb_requestors = 0;
 	const enum dma_slave_buswidth widths =
 		DMA_SLAVE_BUSWIDTH_1_BYTE   | DMA_SLAVE_BUSWIDTH_2_BYTES |
 		DMA_SLAVE_BUSWIDTH_4_BYTES;
@@ -1393,13 +1405,23 @@ static int pxad_probe(struct platform_de
 		return PTR_ERR(pdev->base);
 
 	of_id = of_match_device(pxad_dt_ids, &op->dev);
-	if (of_id)
+	if (of_id) {
 		of_property_read_u32(op->dev.of_node, "#dma-channels",
 				     &dma_channels);
-	else if (pdata && pdata->dma_channels)
+		ret = of_property_read_u32(op->dev.of_node, "#dma-requests",
+					   &nb_requestors);
+		if (ret) {
+			dev_warn(pdev->slave.dev,
+				 "#dma-requests set to default 32 as missing in OF: %d",
+				 ret);
+			nb_requestors = 32;
+		};
+	} else if (pdata && pdata->dma_channels) {
 		dma_channels = pdata->dma_channels;
-	else
+		nb_requestors = pdata->nb_requestors;
+	} else {
 		dma_channels = 32;	/* default 32 channel */
+	}
 
 	dma_cap_set(DMA_SLAVE, pdev->slave.cap_mask);
 	dma_cap_set(DMA_MEMCPY, pdev->slave.cap_mask);
@@ -1416,7 +1438,7 @@ static int pxad_probe(struct platform_de
 	pdev->slave.residue_granularity = DMA_RESIDUE_GRANULARITY_DESCRIPTOR;
 
 	pdev->slave.dev = &op->dev;
-	ret = pxad_init_dmadev(op, pdev, dma_channels);
+	ret = pxad_init_dmadev(op, pdev, dma_channels, nb_requestors);
 	if (ret) {
 		dev_err(pdev->slave.dev, "unable to register\n");
 		return ret;
@@ -1435,7 +1457,8 @@ static int pxad_probe(struct platform_de
 
 	platform_set_drvdata(op, pdev);
 	pxad_init_debugfs(pdev);
-	dev_info(pdev->slave.dev, "initialized %d channels\n", dma_channels);
+	dev_info(pdev->slave.dev, "initialized %d channels on %d requestors\n",
+		 dma_channels, nb_requestors);
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/dma/sh/usb-dmac.c linux-libre-4.4.107-gnu/drivers/dma/sh/usb-dmac.c
--- linux-libre-4.4-gnu/drivers/dma/sh/usb-dmac.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/dma/sh/usb-dmac.c	2017-12-20 04:05:01.000000000 -0500
@@ -117,7 +117,7 @@ struct usb_dmac {
 #define USB_DMASWR			0x0008
 #define USB_DMASWR_SWR			(1 << 0)
 #define USB_DMAOR			0x0060
-#define USB_DMAOR_AE			(1 << 2)
+#define USB_DMAOR_AE			(1 << 1)
 #define USB_DMAOR_DME			(1 << 0)
 
 #define USB_DMASAR			0x0000
@@ -600,27 +600,30 @@ static irqreturn_t usb_dmac_isr_channel(
 {
 	struct usb_dmac_chan *chan = dev;
 	irqreturn_t ret = IRQ_NONE;
-	u32 mask = USB_DMACHCR_TE;
-	u32 check_bits = USB_DMACHCR_TE | USB_DMACHCR_SP;
+	u32 mask = 0;
 	u32 chcr;
+	bool xfer_end = false;
 
 	spin_lock(&chan->vc.lock);
 
 	chcr = usb_dmac_chan_read(chan, USB_DMACHCR);
-	if (chcr & check_bits)
-		mask |= USB_DMACHCR_DE | check_bits;
+	if (chcr & (USB_DMACHCR_TE | USB_DMACHCR_SP)) {
+		mask |= USB_DMACHCR_DE | USB_DMACHCR_TE | USB_DMACHCR_SP;
+		if (chcr & USB_DMACHCR_DE)
+			xfer_end = true;
+		ret |= IRQ_HANDLED;
+	}
 	if (chcr & USB_DMACHCR_NULL) {
 		/* An interruption of TE will happen after we set FTE */
 		mask |= USB_DMACHCR_NULL;
 		chcr |= USB_DMACHCR_FTE;
 		ret |= IRQ_HANDLED;
 	}
-	usb_dmac_chan_write(chan, USB_DMACHCR, chcr & ~mask);
+	if (mask)
+		usb_dmac_chan_write(chan, USB_DMACHCR, chcr & ~mask);
 
-	if (chcr & check_bits) {
+	if (xfer_end)
 		usb_dmac_isr_transfer_end(chan);
-		ret |= IRQ_HANDLED;
-	}
 
 	spin_unlock(&chan->vc.lock);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/dma/ti-dma-crossbar.c linux-libre-4.4.107-gnu/drivers/dma/ti-dma-crossbar.c
--- linux-libre-4.4-gnu/drivers/dma/ti-dma-crossbar.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/dma/ti-dma-crossbar.c	2017-12-20 04:05:01.000000000 -0500
@@ -46,12 +46,12 @@ struct ti_am335x_xbar_data {
 
 struct ti_am335x_xbar_map {
 	u16 dma_line;
-	u16 mux_val;
+	u8 mux_val;
 };
 
-static inline void ti_am335x_xbar_write(void __iomem *iomem, int event, u16 val)
+static inline void ti_am335x_xbar_write(void __iomem *iomem, int event, u8 val)
 {
-	writeb_relaxed(val & 0x1f, iomem + event);
+	writeb_relaxed(val, iomem + event);
 }
 
 static void ti_am335x_xbar_free(struct device *dev, void *route_data)
@@ -102,7 +102,7 @@ static void *ti_am335x_xbar_route_alloca
 	}
 
 	map->dma_line = (u16)dma_spec->args[0];
-	map->mux_val = (u16)dma_spec->args[2];
+	map->mux_val = (u8)dma_spec->args[2];
 
 	dma_spec->args[2] = 0;
 	dma_spec->args_count = 2;
@@ -146,6 +146,7 @@ static int ti_am335x_xbar_probe(struct p
 	match = of_match_node(ti_am335x_master_match, dma_node);
 	if (!match) {
 		dev_err(&pdev->dev, "DMA master is not supported\n");
+		of_node_put(dma_node);
 		return -EINVAL;
 	}
 
@@ -310,6 +311,7 @@ static int ti_dra7_xbar_probe(struct pla
 	match = of_match_node(ti_dra7_master_match, dma_node);
 	if (!match) {
 		dev_err(&pdev->dev, "DMA master is not supported\n");
+		of_node_put(dma_node);
 		return -EINVAL;
 	}
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/dma/zx296702_dma.c linux-libre-4.4.107-gnu/drivers/dma/zx296702_dma.c
--- linux-libre-4.4-gnu/drivers/dma/zx296702_dma.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/dma/zx296702_dma.c	2017-12-20 04:05:01.000000000 -0500
@@ -813,6 +813,7 @@ static int zx_dma_probe(struct platform_
 	INIT_LIST_HEAD(&d->slave.channels);
 	dma_cap_set(DMA_SLAVE, d->slave.cap_mask);
 	dma_cap_set(DMA_MEMCPY, d->slave.cap_mask);
+	dma_cap_set(DMA_CYCLIC, d->slave.cap_mask);
 	dma_cap_set(DMA_PRIVATE, d->slave.cap_mask);
 	d->slave.dev = &op->dev;
 	d->slave.device_free_chan_resources = zx_dma_free_chan_resources;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/edac/amd64_edac.c linux-libre-4.4.107-gnu/drivers/edac/amd64_edac.c
--- linux-libre-4.4-gnu/drivers/edac/amd64_edac.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/edac/amd64_edac.c	2017-12-20 04:05:01.000000000 -0500
@@ -1452,7 +1452,7 @@ static u64 f1x_get_norm_dct_addr(struct
 	u64 chan_off;
 	u64 dram_base		= get_dram_base(pvt, range);
 	u64 hole_off		= f10_dhar_offset(pvt);
-	u64 dct_sel_base_off	= (pvt->dct_sel_hi & 0xFFFFFC00) << 16;
+	u64 dct_sel_base_off	= (u64)(pvt->dct_sel_hi & 0xFFFFFC00) << 16;
 
 	if (hi_rng) {
 		/*
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/edac/edac_device.c linux-libre-4.4.107-gnu/drivers/edac/edac_device.c
--- linux-libre-4.4-gnu/drivers/edac/edac_device.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/edac/edac_device.c	2017-12-20 04:05:01.000000000 -0500
@@ -435,16 +435,13 @@ void edac_device_workq_setup(struct edac
  */
 void edac_device_workq_teardown(struct edac_device_ctl_info *edac_dev)
 {
-	int status;
-
 	if (!edac_dev->edac_check)
 		return;
 
-	status = cancel_delayed_work(&edac_dev->work);
-	if (status == 0) {
-		/* workq instance might be running, wait for it */
-		flush_workqueue(edac_workqueue);
-	}
+	edac_dev->op_state = OP_OFFLINE;
+
+	cancel_delayed_work_sync(&edac_dev->work);
+	flush_workqueue(edac_workqueue);
 }
 
 /*
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/edac/edac_mc.c linux-libre-4.4.107-gnu/drivers/edac/edac_mc.c
--- linux-libre-4.4-gnu/drivers/edac/edac_mc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/edac/edac_mc.c	2017-12-20 04:05:01.000000000 -0500
@@ -586,18 +586,10 @@ static void edac_mc_workq_setup(struct m
  */
 static void edac_mc_workq_teardown(struct mem_ctl_info *mci)
 {
-	int status;
-
-	if (mci->op_state != OP_RUNNING_POLL)
-		return;
-
-	status = cancel_delayed_work(&mci->work);
-	if (status == 0) {
-		edac_dbg(0, "not canceled, flush the queue\n");
+	mci->op_state = OP_OFFLINE;
 
-		/* workq instance might be running, wait for it */
-		flush_workqueue(edac_workqueue);
-	}
+	cancel_delayed_work_sync(&mci->work);
+	flush_workqueue(edac_workqueue);
 }
 
 /*
@@ -974,7 +966,7 @@ static void edac_inc_ue_error(struct mem
 	mci->ue_mc += count;
 
 	if (!enable_per_layer_report) {
-		mci->ce_noinfo_count += count;
+		mci->ue_noinfo_count += count;
 		return;
 	}
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/edac/edac_mc_sysfs.c linux-libre-4.4.107-gnu/drivers/edac/edac_mc_sysfs.c
--- linux-libre-4.4-gnu/drivers/edac/edac_mc_sysfs.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/edac/edac_mc_sysfs.c	2017-12-20 04:05:01.000000000 -0500
@@ -313,7 +313,6 @@ static struct device_type csrow_attr_typ
  * possible dynamic channel DIMM Label attribute files
  *
  */
-
 DEVICE_CHANNEL(ch0_dimm_label, S_IRUGO | S_IWUSR,
 	channel_dimm_label_show, channel_dimm_label_store, 0);
 DEVICE_CHANNEL(ch1_dimm_label, S_IRUGO | S_IWUSR,
@@ -326,6 +325,10 @@ DEVICE_CHANNEL(ch4_dimm_label, S_IRUGO |
 	channel_dimm_label_show, channel_dimm_label_store, 4);
 DEVICE_CHANNEL(ch5_dimm_label, S_IRUGO | S_IWUSR,
 	channel_dimm_label_show, channel_dimm_label_store, 5);
+DEVICE_CHANNEL(ch6_dimm_label, S_IRUGO | S_IWUSR,
+	channel_dimm_label_show, channel_dimm_label_store, 6);
+DEVICE_CHANNEL(ch7_dimm_label, S_IRUGO | S_IWUSR,
+	channel_dimm_label_show, channel_dimm_label_store, 7);
 
 /* Total possible dynamic DIMM Label attribute file table */
 static struct attribute *dynamic_csrow_dimm_attr[] = {
@@ -335,6 +338,8 @@ static struct attribute *dynamic_csrow_d
 	&dev_attr_legacy_ch3_dimm_label.attr.attr,
 	&dev_attr_legacy_ch4_dimm_label.attr.attr,
 	&dev_attr_legacy_ch5_dimm_label.attr.attr,
+	&dev_attr_legacy_ch6_dimm_label.attr.attr,
+	&dev_attr_legacy_ch7_dimm_label.attr.attr,
 	NULL
 };
 
@@ -351,6 +356,10 @@ DEVICE_CHANNEL(ch4_ce_count, S_IRUGO,
 		   channel_ce_count_show, NULL, 4);
 DEVICE_CHANNEL(ch5_ce_count, S_IRUGO,
 		   channel_ce_count_show, NULL, 5);
+DEVICE_CHANNEL(ch6_ce_count, S_IRUGO,
+		   channel_ce_count_show, NULL, 6);
+DEVICE_CHANNEL(ch7_ce_count, S_IRUGO,
+		   channel_ce_count_show, NULL, 7);
 
 /* Total possible dynamic ce_count attribute file table */
 static struct attribute *dynamic_csrow_ce_count_attr[] = {
@@ -360,6 +369,8 @@ static struct attribute *dynamic_csrow_c
 	&dev_attr_legacy_ch3_ce_count.attr.attr,
 	&dev_attr_legacy_ch4_ce_count.attr.attr,
 	&dev_attr_legacy_ch5_ce_count.attr.attr,
+	&dev_attr_legacy_ch6_ce_count.attr.attr,
+	&dev_attr_legacy_ch7_ce_count.attr.attr,
 	NULL
 };
 
@@ -371,9 +382,16 @@ static umode_t csrow_dev_is_visible(stru
 
 	if (idx >= csrow->nr_channels)
 		return 0;
+
+	if (idx >= ARRAY_SIZE(dynamic_csrow_ce_count_attr) - 1) {
+		WARN_ONCE(1, "idx: %d\n", idx);
+		return 0;
+	}
+
 	/* Only expose populated DIMMs */
 	if (!csrow->channels[idx]->dimm->nr_pages)
 		return 0;
+
 	return attr->mode;
 }
 
@@ -880,21 +898,26 @@ static struct device_type mci_attr_type
 int edac_create_sysfs_mci_device(struct mem_ctl_info *mci,
 				 const struct attribute_group **groups)
 {
+	char *name;
 	int i, err;
 
 	/*
 	 * The memory controller needs its own bus, in order to avoid
 	 * namespace conflicts at /sys/bus/edac.
 	 */
-	mci->bus->name = kasprintf(GFP_KERNEL, "mc%d", mci->mc_idx);
-	if (!mci->bus->name)
+	name = kasprintf(GFP_KERNEL, "mc%d", mci->mc_idx);
+	if (!name)
 		return -ENOMEM;
 
+	mci->bus->name = name;
+
 	edac_dbg(0, "creating bus %s\n", mci->bus->name);
 
 	err = bus_register(mci->bus);
-	if (err < 0)
-		goto fail_free_name;
+	if (err < 0) {
+		kfree(name);
+		return err;
+	}
 
 	/* get the /sys/devices/system/edac subsys reference */
 	mci->dev.type = &mci_attr_type;
@@ -961,8 +984,8 @@ fail_unregister_dimm:
 	device_unregister(&mci->dev);
 fail_unregister_bus:
 	bus_unregister(mci->bus);
-fail_free_name:
-	kfree(mci->bus->name);
+	kfree(name);
+
 	return err;
 }
 
@@ -993,10 +1016,12 @@ void edac_remove_sysfs_mci_device(struct
 
 void edac_unregister_sysfs(struct mem_ctl_info *mci)
 {
+	const char *name = mci->bus->name;
+
 	edac_dbg(1, "Unregistering device %s\n", dev_name(&mci->dev));
 	device_unregister(&mci->dev);
 	bus_unregister(mci->bus);
-	kfree(mci->bus->name);
+	kfree(name);
 }
 
 static void mc_attr_release(struct device *dev)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/edac/edac_pci.c linux-libre-4.4.107-gnu/drivers/edac/edac_pci.c
--- linux-libre-4.4-gnu/drivers/edac/edac_pci.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/edac/edac_pci.c	2017-12-20 04:05:01.000000000 -0500
@@ -274,13 +274,12 @@ static void edac_pci_workq_setup(struct
  */
 static void edac_pci_workq_teardown(struct edac_pci_ctl_info *pci)
 {
-	int status;
-
 	edac_dbg(0, "\n");
 
-	status = cancel_delayed_work(&pci->work);
-	if (status == 0)
-		flush_workqueue(edac_workqueue);
+	pci->op_state = OP_OFFLINE;
+
+	cancel_delayed_work_sync(&pci->work);
+	flush_workqueue(edac_workqueue);
 }
 
 /*
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/edac/i5000_edac.c linux-libre-4.4.107-gnu/drivers/edac/i5000_edac.c
--- linux-libre-4.4-gnu/drivers/edac/i5000_edac.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/edac/i5000_edac.c	2017-12-20 04:05:01.000000000 -0500
@@ -227,7 +227,7 @@
 #define			NREC_RDWR(x)		(((x)>>11) & 1)
 #define			NREC_RANK(x)		(((x)>>8) & 0x7)
 #define		NRECMEMB		0xC0
-#define			NREC_CAS(x)		(((x)>>16) & 0xFFFFFF)
+#define			NREC_CAS(x)		(((x)>>16) & 0xFFF)
 #define			NREC_RAS(x)		((x) & 0x7FFF)
 #define		NRECFGLOG		0xC4
 #define		NREEECFBDA		0xC8
@@ -371,7 +371,7 @@ struct i5000_error_info {
 	/* These registers are input ONLY if there was a
 	 * Non-Recoverable Error */
 	u16 nrecmema;		/* Non-Recoverable Mem log A */
-	u16 nrecmemb;		/* Non-Recoverable Mem log B */
+	u32 nrecmemb;		/* Non-Recoverable Mem log B */
 
 };
 
@@ -407,7 +407,7 @@ static void i5000_get_error_info(struct
 				NERR_FAT_FBD, &info->nerr_fat_fbd);
 		pci_read_config_word(pvt->branchmap_werrors,
 				NRECMEMA, &info->nrecmema);
-		pci_read_config_word(pvt->branchmap_werrors,
+		pci_read_config_dword(pvt->branchmap_werrors,
 				NRECMEMB, &info->nrecmemb);
 
 		/* Clear the error bits, by writing them back */
@@ -1293,7 +1293,7 @@ static int i5000_init_csrows(struct mem_
 			dimm->mtype = MEM_FB_DDR2;
 
 			/* ask what device type on this row */
-			if (MTR_DRAM_WIDTH(mtr))
+			if (MTR_DRAM_WIDTH(mtr) == 8)
 				dimm->dtype = DEV_X8;
 			else
 				dimm->dtype = DEV_X4;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/edac/i5400_edac.c linux-libre-4.4.107-gnu/drivers/edac/i5400_edac.c
--- linux-libre-4.4-gnu/drivers/edac/i5400_edac.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/edac/i5400_edac.c	2017-12-20 04:05:01.000000000 -0500
@@ -368,7 +368,7 @@ struct i5400_error_info {
 
 	/* These registers are input ONLY if there was a Non-Rec Error */
 	u16 nrecmema;		/* Non-Recoverable Mem log A */
-	u16 nrecmemb;		/* Non-Recoverable Mem log B */
+	u32 nrecmemb;		/* Non-Recoverable Mem log B */
 
 };
 
@@ -458,7 +458,7 @@ static void i5400_get_error_info(struct
 				NERR_FAT_FBD, &info->nerr_fat_fbd);
 		pci_read_config_word(pvt->branchmap_werrors,
 				NRECMEMA, &info->nrecmema);
-		pci_read_config_word(pvt->branchmap_werrors,
+		pci_read_config_dword(pvt->branchmap_werrors,
 				NRECMEMB, &info->nrecmemb);
 
 		/* Clear the error bits, by writing them back */
@@ -1207,13 +1207,14 @@ static int i5400_init_dimms(struct mem_c
 
 			dimm->nr_pages = size_mb << 8;
 			dimm->grain = 8;
-			dimm->dtype = MTR_DRAM_WIDTH(mtr) ? DEV_X8 : DEV_X4;
+			dimm->dtype = MTR_DRAM_WIDTH(mtr) == 8 ?
+				      DEV_X8 : DEV_X4;
 			dimm->mtype = MEM_FB_DDR2;
 			/*
 			 * The eccc mechanism is SDDC (aka SECC), with
 			 * is similar to Chipkill.
 			 */
-			dimm->edac_mode = MTR_DRAM_WIDTH(mtr) ?
+			dimm->edac_mode = MTR_DRAM_WIDTH(mtr) == 8 ?
 					  EDAC_S8ECD8ED : EDAC_S4ECD4ED;
 			ndimms++;
 		}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/edac/i7core_edac.c linux-libre-4.4.107-gnu/drivers/edac/i7core_edac.c
--- linux-libre-4.4-gnu/drivers/edac/i7core_edac.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/edac/i7core_edac.c	2017-12-20 04:05:01.000000000 -0500
@@ -1866,7 +1866,7 @@ static int i7core_mce_check_error(struct
 
 	i7_dev = get_i7core_dev(mce->socketid);
 	if (!i7_dev)
-		return NOTIFY_BAD;
+		return NOTIFY_DONE;
 
 	mci = i7_dev->mci;
 	pvt = mci->pvt_info;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/edac/sb_edac.c linux-libre-4.4.107-gnu/drivers/edac/sb_edac.c
--- linux-libre-4.4-gnu/drivers/edac/sb_edac.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/edac/sb_edac.c	2017-12-20 04:05:01.000000000 -0500
@@ -218,8 +218,11 @@ static const u32 rir_offset[MAX_RIR_RANG
 	{ 0x1a0, 0x1a4, 0x1a8, 0x1ac, 0x1b0, 0x1b4, 0x1b8, 0x1bc },
 };
 
-#define RIR_RNK_TGT(reg)		GET_BITFIELD(reg, 16, 19)
-#define RIR_OFFSET(reg)		GET_BITFIELD(reg,  2, 14)
+#define RIR_RNK_TGT(type, reg) (((type) == BROADWELL) ? \
+	GET_BITFIELD(reg, 20, 23) : GET_BITFIELD(reg, 16, 19))
+
+#define RIR_OFFSET(type, reg) (((type) == HASWELL || (type) == BROADWELL) ? \
+	GET_BITFIELD(reg,  2, 15) : GET_BITFIELD(reg,  2, 14))
 
 /* Device 16, functions 2-7 */
 
@@ -1117,8 +1120,8 @@ static void get_memory_layout(const stru
 		edac_dbg(0, "TAD#%d: up to %u.%03u GB (0x%016Lx), socket interleave %d, memory interleave %d, TGT: %d, %d, %d, %d, reg=0x%08x\n",
 			 n_tads, gb, (mb*1000)/1024,
 			 ((u64)tmp_mb) << 20L,
-			 (u32)TAD_SOCK(reg),
-			 (u32)TAD_CH(reg),
+			 (u32)(1 << TAD_SOCK(reg)),
+			 (u32)TAD_CH(reg) + 1,
 			 (u32)TAD_TGT0(reg),
 			 (u32)TAD_TGT1(reg),
 			 (u32)TAD_TGT2(reg),
@@ -1175,14 +1178,14 @@ static void get_memory_layout(const stru
 				pci_read_config_dword(pvt->pci_tad[i],
 						      rir_offset[j][k],
 						      &reg);
-				tmp_mb = RIR_OFFSET(reg) << 6;
+				tmp_mb = RIR_OFFSET(pvt->info.type, reg) << 6;
 
 				gb = div_u64_rem(tmp_mb, 1024, &mb);
 				edac_dbg(0, "CH#%d RIR#%d INTL#%d, offset %u.%03u GB (0x%016Lx), tgt: %d, reg=0x%08x\n",
 					 i, j, k,
 					 gb, (mb*1000)/1024,
 					 ((u64)tmp_mb) << 20L,
-					 (u32)RIR_RNK_TGT(reg),
+					 (u32)RIR_RNK_TGT(pvt->info.type, reg),
 					 reg);
 			}
 		}
@@ -1396,7 +1399,7 @@ static int get_memory_error_data(struct
 	}
 
 	ch_way = TAD_CH(reg) + 1;
-	sck_way = TAD_SOCK(reg) + 1;
+	sck_way = TAD_SOCK(reg);
 
 	if (ch_way == 3)
 		idx = addr >> 6;
@@ -1435,7 +1438,7 @@ static int get_memory_error_data(struct
 		switch(ch_way) {
 		case 2:
 		case 4:
-			sck_xch = 1 << sck_way * (ch_way >> 1);
+			sck_xch = (1 << sck_way) * (ch_way >> 1);
 			break;
 		default:
 			sprintf(msg, "Invalid mirror set. Can't decode addr");
@@ -1453,7 +1456,7 @@ static int get_memory_error_data(struct
 		 n_tads,
 		 addr,
 		 limit,
-		 (u32)TAD_SOCK(reg),
+		 sck_way,
 		 ch_way,
 		 offset,
 		 idx,
@@ -1468,18 +1471,12 @@ static int get_memory_error_data(struct
 			offset, addr);
 		return -EINVAL;
 	}
-	addr -= offset;
-	/* Store the low bits [0:6] of the addr */
-	ch_addr = addr & 0x7f;
-	/* Remove socket wayness and remove 6 bits */
-	addr >>= 6;
-	addr = div_u64(addr, sck_xch);
-#if 0
-	/* Divide by channel way */
-	addr = addr / ch_way;
-#endif
-	/* Recover the last 6 bits */
-	ch_addr |= addr << 6;
+
+	ch_addr = addr - offset;
+	ch_addr >>= (6 + shiftup);
+	ch_addr /= sck_xch;
+	ch_addr <<= (6 + shiftup);
+	ch_addr |= addr & ((1 << (6 + shiftup)) - 1);
 
 	/*
 	 * Step 3) Decode rank
@@ -1518,7 +1515,7 @@ static int get_memory_error_data(struct
 	pci_read_config_dword(pvt->pci_tad[ch_add + base_ch],
 			      rir_offset[n_rir][idx],
 			      &reg);
-	*rank = RIR_RNK_TGT(reg);
+	*rank = RIR_RNK_TGT(pvt->info.type, reg);
 
 	edac_dbg(0, "RIR#%d: channel address 0x%08Lx < 0x%08Lx, RIR interleave %d, index %d\n",
 		 n_rir,
@@ -1776,6 +1773,7 @@ static int ibridge_mci_bind_devs(struct
 			break;
 		case PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA0_TA:
 			pvt->pci_ta = pdev;
+			break;
 		case PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA0_RAS:
 			pvt->pci_ras = pdev;
 			break;
@@ -2260,7 +2258,7 @@ static int sbridge_mce_check_error(struc
 
 	mci = get_mci_for_node_id(mce->socketid);
 	if (!mci)
-		return NOTIFY_BAD;
+		return NOTIFY_DONE;
 	pvt = mci->pvt_info;
 
 	/*
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/extcon/extcon-axp288.c linux-libre-4.4.107-gnu/drivers/extcon/extcon-axp288.c
--- linux-libre-4.4-gnu/drivers/extcon/extcon-axp288.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/extcon/extcon-axp288.c	2017-12-20 04:05:01.000000000 -0500
@@ -168,7 +168,7 @@ static int axp288_handle_chrg_det_event(
 		return ret;
 	}
 
-	vbus_attach = (pwr_stat & PS_STAT_VBUS_PRESENT);
+	vbus_attach = (pwr_stat & PS_STAT_VBUS_VALID);
 	if (!vbus_attach)
 		goto notify_otg;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/extcon/extcon-max77843.c linux-libre-4.4.107-gnu/drivers/extcon/extcon-max77843.c
--- linux-libre-4.4-gnu/drivers/extcon/extcon-max77843.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/extcon/extcon-max77843.c	2017-12-20 04:05:01.000000000 -0500
@@ -803,7 +803,7 @@ static int max77843_muic_probe(struct pl
 	/* Clear IRQ bits before request IRQs */
 	ret = regmap_bulk_read(max77843->regmap_muic,
 			MAX77843_MUIC_REG_INT1, info->status,
-			MAX77843_MUIC_IRQ_NUM);
+			MAX77843_MUIC_STATUS_NUM);
 	if (ret) {
 		dev_err(&pdev->dev, "Failed to Clear IRQ bits\n");
 		goto err_muic_irq;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/extcon/extcon-palmas.c linux-libre-4.4.107-gnu/drivers/extcon/extcon-palmas.c
--- linux-libre-4.4-gnu/drivers/extcon/extcon-palmas.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/extcon/extcon-palmas.c	2017-12-20 04:05:01.000000000 -0500
@@ -190,6 +190,11 @@ static int palmas_usb_probe(struct platf
 	struct palmas_usb *palmas_usb;
 	int status;
 
+	if (!palmas) {
+		dev_err(&pdev->dev, "failed to get valid parent\n");
+		return -EINVAL;
+	}
+
 	palmas_usb = devm_kzalloc(&pdev->dev, sizeof(*palmas_usb), GFP_KERNEL);
 	if (!palmas_usb)
 		return -ENOMEM;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/firewire/net.c linux-libre-4.4.107-gnu/drivers/firewire/net.c
--- linux-libre-4.4-gnu/drivers/firewire/net.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/firewire/net.c	2017-12-20 04:05:01.000000000 -0500
@@ -73,13 +73,13 @@ struct rfc2734_header {
 
 #define fwnet_get_hdr_lf(h)		(((h)->w0 & 0xc0000000) >> 30)
 #define fwnet_get_hdr_ether_type(h)	(((h)->w0 & 0x0000ffff))
-#define fwnet_get_hdr_dg_size(h)	(((h)->w0 & 0x0fff0000) >> 16)
+#define fwnet_get_hdr_dg_size(h)	((((h)->w0 & 0x0fff0000) >> 16) + 1)
 #define fwnet_get_hdr_fg_off(h)		(((h)->w0 & 0x00000fff))
 #define fwnet_get_hdr_dgl(h)		(((h)->w1 & 0xffff0000) >> 16)
 
-#define fwnet_set_hdr_lf(lf)		((lf)  << 30)
+#define fwnet_set_hdr_lf(lf)		((lf) << 30)
 #define fwnet_set_hdr_ether_type(et)	(et)
-#define fwnet_set_hdr_dg_size(dgs)	((dgs) << 16)
+#define fwnet_set_hdr_dg_size(dgs)	(((dgs) - 1) << 16)
 #define fwnet_set_hdr_fg_off(fgo)	(fgo)
 
 #define fwnet_set_hdr_dgl(dgl)		((dgl) << 16)
@@ -578,6 +578,9 @@ static int fwnet_incoming_packet(struct
 	int retval;
 	u16 ether_type;
 
+	if (len <= RFC2374_UNFRAG_HDR_SIZE)
+		return 0;
+
 	hdr.w0 = be32_to_cpu(buf[0]);
 	lf = fwnet_get_hdr_lf(&hdr);
 	if (lf == RFC2374_HDR_UNFRAG) {
@@ -602,7 +605,12 @@ static int fwnet_incoming_packet(struct
 		return fwnet_finish_incoming_packet(net, skb, source_node_id,
 						    is_broadcast, ether_type);
 	}
+
 	/* A datagram fragment has been received, now the fun begins. */
+
+	if (len <= RFC2374_FRAG_HDR_SIZE)
+		return 0;
+
 	hdr.w1 = ntohl(buf[1]);
 	buf += 2;
 	len -= RFC2374_FRAG_HDR_SIZE;
@@ -614,7 +622,10 @@ static int fwnet_incoming_packet(struct
 		fg_off = fwnet_get_hdr_fg_off(&hdr);
 	}
 	datagram_label = fwnet_get_hdr_dgl(&hdr);
-	dg_size = fwnet_get_hdr_dg_size(&hdr); /* ??? + 1 */
+	dg_size = fwnet_get_hdr_dg_size(&hdr);
+
+	if (fg_off + len > dg_size)
+		return 0;
 
 	spin_lock_irqsave(&dev->lock, flags);
 
@@ -722,6 +733,22 @@ static void fwnet_receive_packet(struct
 	fw_send_response(card, r, rcode);
 }
 
+static int gasp_source_id(__be32 *p)
+{
+	return be32_to_cpu(p[0]) >> 16;
+}
+
+static u32 gasp_specifier_id(__be32 *p)
+{
+	return (be32_to_cpu(p[0]) & 0xffff) << 8 |
+	       (be32_to_cpu(p[1]) & 0xff000000) >> 24;
+}
+
+static u32 gasp_version(__be32 *p)
+{
+	return be32_to_cpu(p[1]) & 0xffffff;
+}
+
 static void fwnet_receive_broadcast(struct fw_iso_context *context,
 		u32 cycle, size_t header_length, void *header, void *data)
 {
@@ -731,9 +758,6 @@ static void fwnet_receive_broadcast(stru
 	__be32 *buf_ptr;
 	int retval;
 	u32 length;
-	u16 source_node_id;
-	u32 specifier_id;
-	u32 ver;
 	unsigned long offset;
 	unsigned long flags;
 
@@ -750,22 +774,17 @@ static void fwnet_receive_broadcast(stru
 
 	spin_unlock_irqrestore(&dev->lock, flags);
 
-	specifier_id =    (be32_to_cpu(buf_ptr[0]) & 0xffff) << 8
-			| (be32_to_cpu(buf_ptr[1]) & 0xff000000) >> 24;
-	ver = be32_to_cpu(buf_ptr[1]) & 0xffffff;
-	source_node_id = be32_to_cpu(buf_ptr[0]) >> 16;
-
-	if (specifier_id == IANA_SPECIFIER_ID &&
-	    (ver == RFC2734_SW_VERSION
+	if (length > IEEE1394_GASP_HDR_SIZE &&
+	    gasp_specifier_id(buf_ptr) == IANA_SPECIFIER_ID &&
+	    (gasp_version(buf_ptr) == RFC2734_SW_VERSION
 #if IS_ENABLED(CONFIG_IPV6)
-	     || ver == RFC3146_SW_VERSION
+	     || gasp_version(buf_ptr) == RFC3146_SW_VERSION
 #endif
-	    )) {
-		buf_ptr += 2;
-		length -= IEEE1394_GASP_HDR_SIZE;
-		fwnet_incoming_packet(dev, buf_ptr, length, source_node_id,
+	    ))
+		fwnet_incoming_packet(dev, buf_ptr + 2,
+				      length - IEEE1394_GASP_HDR_SIZE,
+				      gasp_source_id(buf_ptr),
 				      context->card->generation, true);
-	}
 
 	packet.payload_length = dev->rcv_buffer_size;
 	packet.interrupt = 1;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/firmware/efi/efi.c linux-libre-4.4.107-gnu/drivers/firmware/efi/efi.c
--- linux-libre-4.4-gnu/drivers/firmware/efi/efi.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/firmware/efi/efi.c	2017-12-20 04:05:01.000000000 -0500
@@ -113,8 +113,7 @@ static ssize_t systab_show(struct kobjec
 	return str - buf;
 }
 
-static struct kobj_attribute efi_attr_systab =
-			__ATTR(systab, 0400, systab_show, NULL);
+static struct kobj_attribute efi_attr_systab = __ATTR_RO_MODE(systab, 0400);
 
 #define EFI_FIELD(var) efi.var
 
@@ -180,6 +179,7 @@ static int generic_ops_register(void)
 {
 	generic_ops.get_variable = efi.get_variable;
 	generic_ops.set_variable = efi.set_variable;
+	generic_ops.set_variable_nonblocking = efi.set_variable_nonblocking;
 	generic_ops.get_next_variable = efi.get_next_variable;
 	generic_ops.query_variable_store = efi_query_variable_store;
 
@@ -310,7 +310,6 @@ int __init efi_mem_desc_lookup(u64 phys_
 
 		early_memunmap(md, sizeof (*md));
 	}
-	pr_err_once("requested map not found.\n");
 	return -ENOENT;
 }
 
@@ -324,38 +323,6 @@ u64 __init efi_mem_desc_end(efi_memory_d
 	return end;
 }
 
-/*
- * We can't ioremap data in EFI boot services RAM, because we've already mapped
- * it as RAM.  So, look it up in the existing EFI memory map instead.  Only
- * callable after efi_enter_virtual_mode and before efi_free_boot_services.
- */
-void __iomem *efi_lookup_mapped_addr(u64 phys_addr)
-{
-	struct efi_memory_map *map;
-	void *p;
-	map = efi.memmap;
-	if (!map)
-		return NULL;
-	if (WARN_ON(!map->map))
-		return NULL;
-	for (p = map->map; p < map->map_end; p += map->desc_size) {
-		efi_memory_desc_t *md = p;
-		u64 size = md->num_pages << EFI_PAGE_SHIFT;
-		u64 end = md->phys_addr + size;
-		if (!(md->attribute & EFI_MEMORY_RUNTIME) &&
-		    md->type != EFI_BOOT_SERVICES_CODE &&
-		    md->type != EFI_BOOT_SERVICES_DATA)
-			continue;
-		if (!md->virt_addr)
-			continue;
-		if (phys_addr >= md->phys_addr && phys_addr < end) {
-			phys_addr += md->virt_addr - md->phys_addr;
-			return (__force void __iomem *)(unsigned long)phys_addr;
-		}
-	}
-	return NULL;
-}
-
 static __initdata efi_config_table_type_t common_tables[] = {
 	{ACPI_20_TABLE_GUID, "ACPI 2.0", &efi.acpi20},
 	{ACPI_TABLE_GUID, "ACPI", &efi.acpi},
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/firmware/efi/efivars.c linux-libre-4.4.107-gnu/drivers/firmware/efi/efivars.c
--- linux-libre-4.4-gnu/drivers/firmware/efi/efivars.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/firmware/efi/efivars.c	2017-12-20 04:05:01.000000000 -0500
@@ -221,7 +221,7 @@ sanity_check(struct efi_variable *var, e
 	}
 
 	if ((attributes & ~EFI_VARIABLE_MASK) != 0 ||
-	    efivar_validate(name, data, size) == false) {
+	    efivar_validate(vendor, name, data, size) == false) {
 		printk(KERN_ERR "efivars: Malformed variable content\n");
 		return -EINVAL;
 	}
@@ -447,7 +447,8 @@ static ssize_t efivar_create(struct file
 	}
 
 	if ((attributes & ~EFI_VARIABLE_MASK) != 0 ||
-	    efivar_validate(name, data, size) == false) {
+	    efivar_validate(new_var->VendorGuid, name, data,
+			    size) == false) {
 		printk(KERN_ERR "efivars: Malformed variable content\n");
 		return -EINVAL;
 	}
@@ -540,38 +541,30 @@ static ssize_t efivar_delete(struct file
 static int
 efivar_create_sysfs_entry(struct efivar_entry *new_var)
 {
-	int i, short_name_size;
+	int short_name_size;
 	char *short_name;
-	unsigned long variable_name_size;
-	efi_char16_t *variable_name;
+	unsigned long utf8_name_size;
+	efi_char16_t *variable_name = new_var->var.VariableName;
 	int ret;
 
-	variable_name = new_var->var.VariableName;
-	variable_name_size = ucs2_strlen(variable_name) * sizeof(efi_char16_t);
-
 	/*
-	 * Length of the variable bytes in ASCII, plus the '-' separator,
+	 * Length of the variable bytes in UTF8, plus the '-' separator,
 	 * plus the GUID, plus trailing NUL
 	 */
-	short_name_size = variable_name_size / sizeof(efi_char16_t)
-				+ 1 + EFI_VARIABLE_GUID_LEN + 1;
-
-	short_name = kzalloc(short_name_size, GFP_KERNEL);
+	utf8_name_size = ucs2_utf8size(variable_name);
+	short_name_size = utf8_name_size + 1 + EFI_VARIABLE_GUID_LEN + 1;
 
+	short_name = kmalloc(short_name_size, GFP_KERNEL);
 	if (!short_name)
 		return -ENOMEM;
 
-	/* Convert Unicode to normal chars (assume top bits are 0),
-	   ala UTF-8 */
-	for (i=0; i < (int)(variable_name_size / sizeof(efi_char16_t)); i++) {
-		short_name[i] = variable_name[i] & 0xFF;
-	}
+	ucs2_as_utf8(short_name, variable_name, short_name_size);
+
 	/* This is ugly, but necessary to separate one vendor's
 	   private variables from another's.         */
-
-	*(short_name + strlen(short_name)) = '-';
+	short_name[utf8_name_size] = '-';
 	efi_guid_to_str(&new_var->var.VendorGuid,
-			 short_name + strlen(short_name));
+			 short_name + utf8_name_size + 1);
 
 	new_var->kobj.kset = efivars_kset;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/firmware/efi/esrt.c linux-libre-4.4.107-gnu/drivers/firmware/efi/esrt.c
--- linux-libre-4.4-gnu/drivers/firmware/efi/esrt.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/firmware/efi/esrt.c	2017-12-20 04:05:01.000000000 -0500
@@ -105,7 +105,7 @@ static const struct sysfs_ops esre_attr_
 };
 
 /* Generic ESRT Entry ("ESRE") support. */
-static ssize_t esre_fw_class_show(struct esre_entry *entry, char *buf)
+static ssize_t fw_class_show(struct esre_entry *entry, char *buf)
 {
 	char *str = buf;
 
@@ -116,18 +116,16 @@ static ssize_t esre_fw_class_show(struct
 	return str - buf;
 }
 
-static struct esre_attribute esre_fw_class = __ATTR(fw_class, 0400,
-	esre_fw_class_show, NULL);
+static struct esre_attribute esre_fw_class = __ATTR_RO_MODE(fw_class, 0400);
 
 #define esre_attr_decl(name, size, fmt) \
-static ssize_t esre_##name##_show(struct esre_entry *entry, char *buf) \
+static ssize_t name##_show(struct esre_entry *entry, char *buf) \
 { \
 	return sprintf(buf, fmt "\n", \
 		       le##size##_to_cpu(entry->esre.esre1->name)); \
 } \
 \
-static struct esre_attribute esre_##name = __ATTR(name, 0400, \
-	esre_##name##_show, NULL)
+static struct esre_attribute esre_##name = __ATTR_RO_MODE(name, 0400)
 
 esre_attr_decl(fw_type, 32, "%u");
 esre_attr_decl(fw_version, 32, "%u");
@@ -195,14 +193,13 @@ static int esre_create_sysfs_entry(void
 
 /* support for displaying ESRT fields at the top level */
 #define esrt_attr_decl(name, size, fmt) \
-static ssize_t esrt_##name##_show(struct kobject *kobj, \
+static ssize_t name##_show(struct kobject *kobj, \
 				  struct kobj_attribute *attr, char *buf)\
 { \
 	return sprintf(buf, fmt "\n", le##size##_to_cpu(esrt->name)); \
 } \
 \
-static struct kobj_attribute esrt_##name = __ATTR(name, 0400, \
-	esrt_##name##_show, NULL)
+static struct kobj_attribute esrt_##name = __ATTR_RO_MODE(name, 0400)
 
 esrt_attr_decl(fw_resource_count, 32, "%u");
 esrt_attr_decl(fw_resource_count_max, 32, "%u");
@@ -256,7 +253,7 @@ void __init efi_esrt_init(void)
 
 	rc = efi_mem_desc_lookup(efi.esrt, &md);
 	if (rc < 0) {
-		pr_err("ESRT header is not in the memory map.\n");
+		pr_warn("ESRT header is not in the memory map.\n");
 		return;
 	}
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/firmware/efi/runtime-map.c linux-libre-4.4.107-gnu/drivers/firmware/efi/runtime-map.c
--- linux-libre-4.4-gnu/drivers/firmware/efi/runtime-map.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/firmware/efi/runtime-map.c	2017-12-20 04:05:01.000000000 -0500
@@ -67,11 +67,11 @@ static ssize_t map_attr_show(struct kobj
 	return map_attr->show(entry, buf);
 }
 
-static struct map_attribute map_type_attr = __ATTR_RO(type);
-static struct map_attribute map_phys_addr_attr   = __ATTR_RO(phys_addr);
-static struct map_attribute map_virt_addr_attr  = __ATTR_RO(virt_addr);
-static struct map_attribute map_num_pages_attr  = __ATTR_RO(num_pages);
-static struct map_attribute map_attribute_attr  = __ATTR_RO(attribute);
+static struct map_attribute map_type_attr = __ATTR_RO_MODE(type, 0400);
+static struct map_attribute map_phys_addr_attr = __ATTR_RO_MODE(phys_addr, 0400);
+static struct map_attribute map_virt_addr_attr = __ATTR_RO_MODE(virt_addr, 0400);
+static struct map_attribute map_num_pages_attr = __ATTR_RO_MODE(num_pages, 0400);
+static struct map_attribute map_attribute_attr = __ATTR_RO_MODE(attribute, 0400);
 
 /*
  * These are default attributes that are added for every memmap entry.
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/firmware/efi/vars.c linux-libre-4.4.107-gnu/drivers/firmware/efi/vars.c
--- linux-libre-4.4-gnu/drivers/firmware/efi/vars.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/firmware/efi/vars.c	2017-12-20 04:05:01.000000000 -0500
@@ -165,67 +165,148 @@ validate_ascii_string(efi_char16_t *var_
 }
 
 struct variable_validate {
+	efi_guid_t vendor;
 	char *name;
 	bool (*validate)(efi_char16_t *var_name, int match, u8 *data,
 			 unsigned long len);
 };
 
+/*
+ * This is the list of variables we need to validate, as well as the
+ * whitelist for what we think is safe not to default to immutable.
+ *
+ * If it has a validate() method that's not NULL, it'll go into the
+ * validation routine.  If not, it is assumed valid, but still used for
+ * whitelisting.
+ *
+ * Note that it's sorted by {vendor,name}, but globbed names must come after
+ * any other name with the same prefix.
+ */
 static const struct variable_validate variable_validate[] = {
-	{ "BootNext", validate_uint16 },
-	{ "BootOrder", validate_boot_order },
-	{ "DriverOrder", validate_boot_order },
-	{ "Boot*", validate_load_option },
-	{ "Driver*", validate_load_option },
-	{ "ConIn", validate_device_path },
-	{ "ConInDev", validate_device_path },
-	{ "ConOut", validate_device_path },
-	{ "ConOutDev", validate_device_path },
-	{ "ErrOut", validate_device_path },
-	{ "ErrOutDev", validate_device_path },
-	{ "Timeout", validate_uint16 },
-	{ "Lang", validate_ascii_string },
-	{ "PlatformLang", validate_ascii_string },
-	{ "", NULL },
+	{ EFI_GLOBAL_VARIABLE_GUID, "BootNext", validate_uint16 },
+	{ EFI_GLOBAL_VARIABLE_GUID, "BootOrder", validate_boot_order },
+	{ EFI_GLOBAL_VARIABLE_GUID, "Boot*", validate_load_option },
+	{ EFI_GLOBAL_VARIABLE_GUID, "DriverOrder", validate_boot_order },
+	{ EFI_GLOBAL_VARIABLE_GUID, "Driver*", validate_load_option },
+	{ EFI_GLOBAL_VARIABLE_GUID, "ConIn", validate_device_path },
+	{ EFI_GLOBAL_VARIABLE_GUID, "ConInDev", validate_device_path },
+	{ EFI_GLOBAL_VARIABLE_GUID, "ConOut", validate_device_path },
+	{ EFI_GLOBAL_VARIABLE_GUID, "ConOutDev", validate_device_path },
+	{ EFI_GLOBAL_VARIABLE_GUID, "ErrOut", validate_device_path },
+	{ EFI_GLOBAL_VARIABLE_GUID, "ErrOutDev", validate_device_path },
+	{ EFI_GLOBAL_VARIABLE_GUID, "Lang", validate_ascii_string },
+	{ EFI_GLOBAL_VARIABLE_GUID, "OsIndications", NULL },
+	{ EFI_GLOBAL_VARIABLE_GUID, "PlatformLang", validate_ascii_string },
+	{ EFI_GLOBAL_VARIABLE_GUID, "Timeout", validate_uint16 },
+	{ LINUX_EFI_CRASH_GUID, "*", NULL },
+	{ NULL_GUID, "", NULL },
 };
 
+/*
+ * Check if @var_name matches the pattern given in @match_name.
+ *
+ * @var_name: an array of @len non-NUL characters.
+ * @match_name: a NUL-terminated pattern string, optionally ending in "*". A
+ *              final "*" character matches any trailing characters @var_name,
+ *              including the case when there are none left in @var_name.
+ * @match: on output, the number of non-wildcard characters in @match_name
+ *         that @var_name matches, regardless of the return value.
+ * @return: whether @var_name fully matches @match_name.
+ */
+static bool
+variable_matches(const char *var_name, size_t len, const char *match_name,
+		 int *match)
+{
+	for (*match = 0; ; (*match)++) {
+		char c = match_name[*match];
+
+		switch (c) {
+		case '*':
+			/* Wildcard in @match_name means we've matched. */
+			return true;
+
+		case '\0':
+			/* @match_name has ended. Has @var_name too? */
+			return (*match == len);
+
+		default:
+			/*
+			 * We've reached a non-wildcard char in @match_name.
+			 * Continue only if there's an identical character in
+			 * @var_name.
+			 */
+			if (*match < len && c == var_name[*match])
+				continue;
+			return false;
+		}
+	}
+}
+
 bool
-efivar_validate(efi_char16_t *var_name, u8 *data, unsigned long len)
+efivar_validate(efi_guid_t vendor, efi_char16_t *var_name, u8 *data,
+		unsigned long data_size)
 {
 	int i;
-	u16 *unicode_name = var_name;
+	unsigned long utf8_size;
+	u8 *utf8_name;
 
-	for (i = 0; variable_validate[i].validate != NULL; i++) {
-		const char *name = variable_validate[i].name;
-		int match;
+	utf8_size = ucs2_utf8size(var_name);
+	utf8_name = kmalloc(utf8_size + 1, GFP_KERNEL);
+	if (!utf8_name)
+		return false;
 
-		for (match = 0; ; match++) {
-			char c = name[match];
-			u16 u = unicode_name[match];
+	ucs2_as_utf8(utf8_name, var_name, utf8_size);
+	utf8_name[utf8_size] = '\0';
 
-			/* All special variables are plain ascii */
-			if (u > 127)
-				return true;
+	for (i = 0; variable_validate[i].name[0] != '\0'; i++) {
+		const char *name = variable_validate[i].name;
+		int match = 0;
 
-			/* Wildcard in the matching name means we've matched */
-			if (c == '*')
-				return variable_validate[i].validate(var_name,
-							     match, data, len);
+		if (efi_guidcmp(vendor, variable_validate[i].vendor))
+			continue;
 
-			/* Case sensitive match */
-			if (c != u)
+		if (variable_matches(utf8_name, utf8_size+1, name, &match)) {
+			if (variable_validate[i].validate == NULL)
 				break;
-
-			/* Reached the end of the string while matching */
-			if (!c)
-				return variable_validate[i].validate(var_name,
-							     match, data, len);
+			kfree(utf8_name);
+			return variable_validate[i].validate(var_name, match,
+							     data, data_size);
 		}
 	}
-
+	kfree(utf8_name);
 	return true;
 }
 EXPORT_SYMBOL_GPL(efivar_validate);
 
+bool
+efivar_variable_is_removable(efi_guid_t vendor, const char *var_name,
+			     size_t len)
+{
+	int i;
+	bool found = false;
+	int match = 0;
+
+	/*
+	 * Check if our variable is in the validated variables list
+	 */
+	for (i = 0; variable_validate[i].name[0] != '\0'; i++) {
+		if (efi_guidcmp(variable_validate[i].vendor, vendor))
+			continue;
+
+		if (variable_matches(var_name, len,
+				     variable_validate[i].name, &match)) {
+			found = true;
+			break;
+		}
+	}
+
+	/*
+	 * If it's in our list, it is removable.
+	 */
+	return found;
+}
+EXPORT_SYMBOL_GPL(efivar_variable_is_removable);
+
 static efi_status_t
 check_var_size(u32 attributes, unsigned long size)
 {
@@ -852,7 +933,7 @@ int efivar_entry_set_get_size(struct efi
 
 	*set = false;
 
-	if (efivar_validate(name, data, *size) == false)
+	if (efivar_validate(*vendor, name, data, *size) == false)
 		return -EINVAL;
 
 	/*
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/firmware/psci.c linux-libre-4.4.107-gnu/drivers/firmware/psci.c
--- linux-libre-4.4-gnu/drivers/firmware/psci.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/firmware/psci.c	2017-12-20 04:05:01.000000000 -0500
@@ -424,7 +424,7 @@ out_put_node:
 	return err;
 }
 
-static const struct of_device_id const psci_of_match[] __initconst = {
+static const struct of_device_id psci_of_match[] __initconst = {
 	{ .compatible = "arm,psci",	.data = psci_0_1_init},
 	{ .compatible = "arm,psci-0.2",	.data = psci_0_2_init},
 	{ .compatible = "arm,psci-1.0",	.data = psci_0_2_init},
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpio/gpio-altera.c linux-libre-4.4.107-gnu/drivers/gpio/gpio-altera.c
--- linux-libre-4.4-gnu/drivers/gpio/gpio-altera.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpio/gpio-altera.c	2017-12-20 04:05:01.000000000 -0500
@@ -94,21 +94,18 @@ static int altera_gpio_irq_set_type(stru
 
 	altera_gc = to_altera(irq_data_get_irq_chip_data(d));
 
-	if (type == IRQ_TYPE_NONE)
-		return 0;
-	if (type == IRQ_TYPE_LEVEL_HIGH &&
-		altera_gc->interrupt_trigger == IRQ_TYPE_LEVEL_HIGH)
-		return 0;
-	if (type == IRQ_TYPE_EDGE_RISING &&
-		altera_gc->interrupt_trigger == IRQ_TYPE_EDGE_RISING)
-		return 0;
-	if (type == IRQ_TYPE_EDGE_FALLING &&
-		altera_gc->interrupt_trigger == IRQ_TYPE_EDGE_FALLING)
+	if (type == IRQ_TYPE_NONE) {
+		irq_set_handler_locked(d, handle_bad_irq);
 		return 0;
-	if (type == IRQ_TYPE_EDGE_BOTH &&
-		altera_gc->interrupt_trigger == IRQ_TYPE_EDGE_BOTH)
+	}
+	if (type == altera_gc->interrupt_trigger) {
+		if (type == IRQ_TYPE_LEVEL_HIGH)
+			irq_set_handler_locked(d, handle_level_irq);
+		else
+			irq_set_handler_locked(d, handle_simple_irq);
 		return 0;
-
+	}
+	irq_set_handler_locked(d, handle_bad_irq);
 	return -EINVAL;
 }
 
@@ -234,7 +231,6 @@ static void altera_gpio_irq_edge_handler
 	chained_irq_exit(chip, desc);
 }
 
-
 static void altera_gpio_irq_leveL_high_handler(struct irq_desc *desc)
 {
 	struct altera_gpio_chip *altera_gc;
@@ -314,7 +310,7 @@ static int altera_gpio_probe(struct plat
 	altera_gc->interrupt_trigger = reg;
 
 	ret = gpiochip_irqchip_add(&altera_gc->mmchip.gc, &altera_irq_chip, 0,
-		handle_simple_irq, IRQ_TYPE_NONE);
+		handle_bad_irq, IRQ_TYPE_NONE);
 
 	if (ret) {
 		dev_info(&pdev->dev, "could not add irqchip\n");
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpio/gpio-bcm-kona.c linux-libre-4.4.107-gnu/drivers/gpio/gpio-bcm-kona.c
--- linux-libre-4.4-gnu/drivers/gpio/gpio-bcm-kona.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpio/gpio-bcm-kona.c	2017-12-20 04:05:01.000000000 -0500
@@ -551,11 +551,11 @@ static void bcm_kona_gpio_reset(struct b
 	/* disable interrupts and clear status */
 	for (i = 0; i < kona_gpio->num_bank; i++) {
 		/* Unlock the entire bank first */
-		bcm_kona_gpio_write_lock_regs(kona_gpio, i, UNLOCK_CODE);
+		bcm_kona_gpio_write_lock_regs(reg_base, i, UNLOCK_CODE);
 		writel(0xffffffff, reg_base + GPIO_INT_MASK(i));
 		writel(0xffffffff, reg_base + GPIO_INT_STATUS(i));
 		/* Now re-lock the bank */
-		bcm_kona_gpio_write_lock_regs(kona_gpio, i, LOCK_CODE);
+		bcm_kona_gpio_write_lock_regs(reg_base, i, LOCK_CODE);
 	}
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpio/gpio-intel-mid.c linux-libre-4.4.107-gnu/drivers/gpio/gpio-intel-mid.c
--- linux-libre-4.4-gnu/drivers/gpio/gpio-intel-mid.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpio/gpio-intel-mid.c	2017-12-20 04:05:01.000000000 -0500
@@ -17,7 +17,6 @@
  * Moorestown platform Langwell chip.
  * Medfield platform Penwell chip.
  * Clovertrail platform Cloverview chip.
- * Merrifield platform Tangier chip.
  */
 
 #include <linux/module.h>
@@ -64,10 +63,6 @@ enum GPIO_REG {
 /* intel_mid gpio driver data */
 struct intel_mid_gpio_ddata {
 	u16 ngpio;		/* number of gpio pins */
-	u32 gplr_offset;	/* offset of first GPLR register from base */
-	u32 flis_base;		/* base address of FLIS registers */
-	u32 flis_len;		/* length of FLIS registers */
-	u32 (*get_flis_offset)(int gpio);
 	u32 chip_irq_type;	/* chip interrupt type */
 };
 
@@ -257,15 +252,6 @@ static const struct intel_mid_gpio_ddata
 	.chip_irq_type = INTEL_MID_IRQ_TYPE_EDGE,
 };
 
-static const struct intel_mid_gpio_ddata gpio_tangier = {
-	.ngpio = 192,
-	.gplr_offset = 4,
-	.flis_base = 0xff0c0000,
-	.flis_len = 0x8000,
-	.get_flis_offset = NULL,
-	.chip_irq_type = INTEL_MID_IRQ_TYPE_EDGE,
-};
-
 static const struct pci_device_id intel_gpio_ids[] = {
 	{
 		/* Lincroft */
@@ -292,11 +278,6 @@ static const struct pci_device_id intel_
 		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x08f7),
 		.driver_data = (kernel_ulong_t)&gpio_cloverview_core,
 	},
-	{
-		/* Tangier */
-		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x1199),
-		.driver_data = (kernel_ulong_t)&gpio_tangier,
-	},
 	{ 0 }
 };
 MODULE_DEVICE_TABLE(pci, intel_gpio_ids);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpio/gpiolib.c linux-libre-4.4.107-gnu/drivers/gpio/gpiolib.c
--- linux-libre-4.4-gnu/drivers/gpio/gpiolib.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpio/gpiolib.c	2017-12-20 04:05:01.000000000 -0500
@@ -927,14 +927,6 @@ static int __gpiod_request(struct gpio_d
 		spin_lock_irqsave(&gpio_lock, flags);
 	}
 done:
-	if (status < 0) {
-		/* Clear flags that might have been set by the caller before
-		 * requesting the GPIO.
-		 */
-		clear_bit(FLAG_ACTIVE_LOW, &desc->flags);
-		clear_bit(FLAG_OPEN_DRAIN, &desc->flags);
-		clear_bit(FLAG_OPEN_SOURCE, &desc->flags);
-	}
 	spin_unlock_irqrestore(&gpio_lock, flags);
 	return status;
 }
@@ -2062,28 +2054,13 @@ struct gpio_desc *__must_check gpiod_get
 }
 EXPORT_SYMBOL_GPL(gpiod_get_optional);
 
-/**
- * gpiod_parse_flags - helper function to parse GPIO lookup flags
- * @desc:	gpio to be setup
- * @lflags:	gpio_lookup_flags - returned from of_find_gpio() or
- *		of_get_gpio_hog()
- *
- * Set the GPIO descriptor flags based on the given GPIO lookup flags.
- */
-static void gpiod_parse_flags(struct gpio_desc *desc, unsigned long lflags)
-{
-	if (lflags & GPIO_ACTIVE_LOW)
-		set_bit(FLAG_ACTIVE_LOW, &desc->flags);
-	if (lflags & GPIO_OPEN_DRAIN)
-		set_bit(FLAG_OPEN_DRAIN, &desc->flags);
-	if (lflags & GPIO_OPEN_SOURCE)
-		set_bit(FLAG_OPEN_SOURCE, &desc->flags);
-}
 
 /**
  * gpiod_configure_flags - helper function to configure a given GPIO
  * @desc:	gpio whose value will be assigned
  * @con_id:	function within the GPIO consumer
+ * @lflags:	gpio_lookup_flags - returned from of_find_gpio() or
+ *		of_get_gpio_hog()
  * @dflags:	gpiod_flags - optional GPIO initialization flags
  *
  * Return 0 on success, -ENOENT if no GPIO has been assigned to the
@@ -2091,10 +2068,17 @@ static void gpiod_parse_flags(struct gpi
  * occurred while trying to acquire the GPIO.
  */
 static int gpiod_configure_flags(struct gpio_desc *desc, const char *con_id,
-				 enum gpiod_flags dflags)
+		unsigned long lflags, enum gpiod_flags dflags)
 {
 	int status;
 
+	if (lflags & GPIO_ACTIVE_LOW)
+		set_bit(FLAG_ACTIVE_LOW, &desc->flags);
+	if (lflags & GPIO_OPEN_DRAIN)
+		set_bit(FLAG_OPEN_DRAIN, &desc->flags);
+	if (lflags & GPIO_OPEN_SOURCE)
+		set_bit(FLAG_OPEN_SOURCE, &desc->flags);
+
 	/* No particular flag request, return here... */
 	if (!(dflags & GPIOD_FLAGS_BIT_DIR_SET)) {
 		pr_debug("no flags found for %s\n", con_id);
@@ -2161,13 +2145,11 @@ struct gpio_desc *__must_check gpiod_get
 		return desc;
 	}
 
-	gpiod_parse_flags(desc, lookupflags);
-
 	status = gpiod_request(desc, con_id);
 	if (status < 0)
 		return ERR_PTR(status);
 
-	status = gpiod_configure_flags(desc, con_id, flags);
+	status = gpiod_configure_flags(desc, con_id, lookupflags, flags);
 	if (status < 0) {
 		dev_dbg(dev, "setup of GPIO %s failed\n", con_id);
 		gpiod_put(desc);
@@ -2223,6 +2205,10 @@ struct gpio_desc *fwnode_get_named_gpiod
 	if (IS_ERR(desc))
 		return desc;
 
+	ret = gpiod_request(desc, NULL);
+	if (ret)
+		return ERR_PTR(ret);
+
 	if (active_low)
 		set_bit(FLAG_ACTIVE_LOW, &desc->flags);
 
@@ -2233,10 +2219,6 @@ struct gpio_desc *fwnode_get_named_gpiod
 			set_bit(FLAG_OPEN_SOURCE, &desc->flags);
 	}
 
-	ret = gpiod_request(desc, NULL);
-	if (ret)
-		return ERR_PTR(ret);
-
 	return desc;
 }
 EXPORT_SYMBOL_GPL(fwnode_get_named_gpiod);
@@ -2289,8 +2271,6 @@ int gpiod_hog(struct gpio_desc *desc, co
 	chip = gpiod_to_chip(desc);
 	hwnum = gpio_chip_hwgpio(desc);
 
-	gpiod_parse_flags(desc, lflags);
-
 	local_desc = gpiochip_request_own_desc(chip, hwnum, name);
 	if (IS_ERR(local_desc)) {
 		pr_err("requesting hog GPIO %s (chip %s, offset %d) failed\n",
@@ -2298,7 +2278,7 @@ int gpiod_hog(struct gpio_desc *desc, co
 		return PTR_ERR(local_desc);
 	}
 
-	status = gpiod_configure_flags(desc, name, dflags);
+	status = gpiod_configure_flags(desc, name, lflags, dflags);
 	if (status < 0) {
 		pr_err("setup of hog GPIO %s (chip %s, offset %d) failed\n",
 		       name, chip->label, hwnum);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpio/gpiolib-legacy.c linux-libre-4.4.107-gnu/drivers/gpio/gpiolib-legacy.c
--- linux-libre-4.4-gnu/drivers/gpio/gpiolib-legacy.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpio/gpiolib-legacy.c	2017-12-20 04:05:01.000000000 -0500
@@ -28,6 +28,10 @@ int gpio_request_one(unsigned gpio, unsi
 	if (!desc && gpio_is_valid(gpio))
 		return -EPROBE_DEFER;
 
+	err = gpiod_request(desc, label);
+	if (err)
+		return err;
+
 	if (flags & GPIOF_OPEN_DRAIN)
 		set_bit(FLAG_OPEN_DRAIN, &desc->flags);
 
@@ -37,10 +41,6 @@ int gpio_request_one(unsigned gpio, unsi
 	if (flags & GPIOF_ACTIVE_LOW)
 		set_bit(FLAG_ACTIVE_LOW, &desc->flags);
 
-	err = gpiod_request(desc, label);
-	if (err)
-		return err;
-
 	if (flags & GPIOF_DIR_IN)
 		err = gpiod_direction_input(desc);
 	else
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpio/gpio-mpc8xxx.c linux-libre-4.4.107-gnu/drivers/gpio/gpio-mpc8xxx.c
--- linux-libre-4.4-gnu/drivers/gpio/gpio-mpc8xxx.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpio/gpio-mpc8xxx.c	2017-12-20 04:05:01.000000000 -0500
@@ -329,7 +329,7 @@ static int mpc8xxx_gpio_irq_map(struct i
 				irq_hw_number_t hwirq)
 {
 	irq_set_chip_data(irq, h->host_data);
-	irq_set_chip_and_handler(irq, &mpc8xxx_irq_chip, handle_level_irq);
+	irq_set_chip_and_handler(irq, &mpc8xxx_irq_chip, handle_edge_irq);
 
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpio/gpio-pca953x.c linux-libre-4.4.107-gnu/drivers/gpio/gpio-pca953x.c
--- linux-libre-4.4-gnu/drivers/gpio/gpio-pca953x.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpio/gpio-pca953x.c	2017-12-20 04:05:01.000000000 -0500
@@ -86,7 +86,7 @@ MODULE_DEVICE_TABLE(acpi, pca953x_acpi_i
 #define MAX_BANK 5
 #define BANK_SZ 8
 
-#define NBANK(chip) (chip->gpio_chip.ngpio / BANK_SZ)
+#define NBANK(chip) DIV_ROUND_UP(chip->gpio_chip.ngpio, BANK_SZ)
 
 struct pca953x_chip {
 	unsigned gpio_start;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpio/gpio-sa1100.c linux-libre-4.4.107-gnu/drivers/gpio/gpio-sa1100.c
--- linux-libre-4.4-gnu/drivers/gpio/gpio-sa1100.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpio/gpio-sa1100.c	2017-12-20 04:05:01.000000000 -0500
@@ -155,7 +155,7 @@ static int sa1100_gpio_irqdomain_map(str
 {
 	irq_set_chip_and_handler(irq, &sa1100_gpio_irq_chip,
 				 handle_edge_irq);
-	irq_set_noprobe(irq);
+	irq_set_probe(irq);
 
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpio/Kconfig linux-libre-4.4.107-gnu/drivers/gpio/Kconfig
--- linux-libre-4.4-gnu/drivers/gpio/Kconfig	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpio/Kconfig	2017-12-20 04:05:01.000000000 -0500
@@ -50,6 +50,7 @@ config GPIO_DEVRES
 config OF_GPIO
 	def_bool y
 	depends on OF
+	depends on HAS_IOMEM
 
 config GPIO_ACPI
 	def_bool y
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c	2017-12-20 04:05:01.000000000 -0500
@@ -331,6 +331,19 @@ bool amdgpu_atombios_get_connector_info_
 			    (le16_to_cpu(path->usConnObjectId) &
 			     OBJECT_TYPE_MASK) >> OBJECT_TYPE_SHIFT;
 
+			/* Skip TV/CV support */
+			if ((le16_to_cpu(path->usDeviceTag) ==
+			     ATOM_DEVICE_TV1_SUPPORT) ||
+			    (le16_to_cpu(path->usDeviceTag) ==
+			     ATOM_DEVICE_CV_SUPPORT))
+				continue;
+
+			if (con_obj_id >= ARRAY_SIZE(object_connector_convert)) {
+				DRM_ERROR("invalid con_obj_id %d for device tag 0x%04x\n",
+					  con_obj_id, le16_to_cpu(path->usDeviceTag));
+				continue;
+			}
+
 			connector_type =
 				object_connector_convert[con_obj_id];
 			connector_object_id = con_obj_id;
@@ -566,28 +579,19 @@ int amdgpu_atombios_get_clock_info(struc
 		    le16_to_cpu(firmware_info->info.usReferenceClock);
 		ppll->reference_div = 0;
 
-		if (crev < 2)
-			ppll->pll_out_min =
-				le16_to_cpu(firmware_info->info.usMinPixelClockPLL_Output);
-		else
-			ppll->pll_out_min =
-				le32_to_cpu(firmware_info->info_12.ulMinPixelClockPLL_Output);
+		ppll->pll_out_min =
+			le32_to_cpu(firmware_info->info_12.ulMinPixelClockPLL_Output);
 		ppll->pll_out_max =
 		    le32_to_cpu(firmware_info->info.ulMaxPixelClockPLL_Output);
 
-		if (crev >= 4) {
-			ppll->lcd_pll_out_min =
-				le16_to_cpu(firmware_info->info_14.usLcdMinPixelClockPLL_Output) * 100;
-			if (ppll->lcd_pll_out_min == 0)
-				ppll->lcd_pll_out_min = ppll->pll_out_min;
-			ppll->lcd_pll_out_max =
-				le16_to_cpu(firmware_info->info_14.usLcdMaxPixelClockPLL_Output) * 100;
-			if (ppll->lcd_pll_out_max == 0)
-				ppll->lcd_pll_out_max = ppll->pll_out_max;
-		} else {
+		ppll->lcd_pll_out_min =
+			le16_to_cpu(firmware_info->info_14.usLcdMinPixelClockPLL_Output) * 100;
+		if (ppll->lcd_pll_out_min == 0)
 			ppll->lcd_pll_out_min = ppll->pll_out_min;
+		ppll->lcd_pll_out_max =
+			le16_to_cpu(firmware_info->info_14.usLcdMaxPixelClockPLL_Output) * 100;
+		if (ppll->lcd_pll_out_max == 0)
 			ppll->lcd_pll_out_max = ppll->pll_out_max;
-		}
 
 		if (ppll->pll_out_min == 0)
 			ppll->pll_out_min = 64800;
@@ -677,6 +681,10 @@ int amdgpu_atombios_get_clock_info(struc
 			DRM_INFO("Changing default dispclk from %dMhz to 600Mhz\n",
 				 adev->clock.default_dispclk / 100);
 			adev->clock.default_dispclk = 60000;
+		} else if (adev->clock.default_dispclk <= 60000) {
+			DRM_INFO("Changing default dispclk from %dMhz to 625Mhz\n",
+				 adev->clock.default_dispclk / 100);
+			adev->clock.default_dispclk = 62500;
 		}
 		adev->clock.dp_extclk =
 			le16_to_cpu(firmware_info->info_21.usUniphyDPModeExtClkFreq);
@@ -1567,34 +1575,32 @@ void amdgpu_atombios_scratch_regs_restor
 		WREG32(mmBIOS_SCRATCH_0 + i, adev->bios_scratch[i]);
 }
 
-/* Atom needs data in little endian format
- * so swap as appropriate when copying data to
- * or from atom. Note that atom operates on
- * dw units.
+/* Atom needs data in little endian format so swap as appropriate when copying
+ * data to or from atom. Note that atom operates on dw units.
+ *
+ * Use to_le=true when sending data to atom and provide at least
+ * ALIGN(num_bytes,4) bytes in the dst buffer.
+ *
+ * Use to_le=false when receiving data from atom and provide ALIGN(num_bytes,4)
+ * byes in the src buffer.
  */
 void amdgpu_atombios_copy_swap(u8 *dst, u8 *src, u8 num_bytes, bool to_le)
 {
 #ifdef __BIG_ENDIAN
-	u8 src_tmp[20], dst_tmp[20]; /* used for byteswapping */
-	u32 *dst32, *src32;
+	u32 src_tmp[5], dst_tmp[5];
 	int i;
+	u8 align_num_bytes = ALIGN(num_bytes, 4);
 
-	memcpy(src_tmp, src, num_bytes);
-	src32 = (u32 *)src_tmp;
-	dst32 = (u32 *)dst_tmp;
 	if (to_le) {
-		for (i = 0; i < ((num_bytes + 3) / 4); i++)
-			dst32[i] = cpu_to_le32(src32[i]);
-		memcpy(dst, dst_tmp, num_bytes);
+		memcpy(src_tmp, src, num_bytes);
+		for (i = 0; i < align_num_bytes / 4; i++)
+			dst_tmp[i] = cpu_to_le32(src_tmp[i]);
+		memcpy(dst, dst_tmp, align_num_bytes);
 	} else {
-		u8 dws = num_bytes & ~3;
-		for (i = 0; i < ((num_bytes + 3) / 4); i++)
-			dst32[i] = le32_to_cpu(src32[i]);
-		memcpy(dst, dst_tmp, dws);
-		if (num_bytes % 4) {
-			for (i = 0; i < (num_bytes % 4); i++)
-				dst[dws+i] = dst_tmp[dws+i];
-		}
+		memcpy(src_tmp, src, align_num_bytes);
+		for (i = 0; i < align_num_bytes / 4; i++)
+			dst_tmp[i] = le32_to_cpu(src_tmp[i]);
+		memcpy(dst, dst_tmp, num_bytes);
 	}
 #else
 	memcpy(dst, src, num_bytes);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_atpx_handler.c linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_atpx_handler.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_atpx_handler.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_atpx_handler.c	2017-12-20 04:05:01.000000000 -0500
@@ -10,6 +10,7 @@
 #include <linux/slab.h>
 #include <linux/acpi.h>
 #include <linux/pci.h>
+#include <linux/delay.h>
 
 #include "amdgpu_acpi.h"
 
@@ -256,6 +257,10 @@ static int amdgpu_atpx_set_discrete_stat
 		if (!info)
 			return -EIO;
 		kfree(info);
+
+		/* 200ms delay is required after off */
+		if (state == 0)
+			msleep(200);
 	}
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_bo_list.c linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_bo_list.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_bo_list.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_bo_list.c	2017-12-20 04:05:01.000000000 -0500
@@ -117,7 +117,7 @@ static int amdgpu_bo_list_set(struct amd
 			entry->allowed_domains = AMDGPU_GEM_DOMAIN_GTT;
 		}
 		entry->tv.bo = &entry->robj->tbo;
-		entry->tv.shared = true;
+		entry->tv.shared = !entry->robj->prime_shared_count;
 
 		if (entry->prefered_domains == AMDGPU_GEM_DOMAIN_GDS)
 			gds_obj = entry->robj;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c	2017-12-20 04:05:01.000000000 -0500
@@ -77,7 +77,7 @@ void amdgpu_connector_hotplug(struct drm
 			} else if (amdgpu_atombios_dp_needs_link_train(amdgpu_connector)) {
 				/* Don't try to start link training before we
 				 * have the dpcd */
-				if (!amdgpu_atombios_dp_get_dpcd(amdgpu_connector))
+				if (amdgpu_atombios_dp_get_dpcd(amdgpu_connector))
 					return;
 
 				/* set it to OFF so that drm_helper_connector_dpms()
@@ -194,12 +194,12 @@ int amdgpu_connector_get_monitor_bpc(str
 				bpc = 8;
 				DRM_DEBUG("%s: HDMI deep color 10 bpc exceeds max tmds clock. Using %d bpc.\n",
 					  connector->name, bpc);
-			} else if (bpc > 8) {
-				/* max_tmds_clock missing, but hdmi spec mandates it for deep color. */
-				DRM_DEBUG("%s: Required max tmds clock for HDMI deep color missing. Using 8 bpc.\n",
-					  connector->name);
-				bpc = 8;
 			}
+		} else if (bpc > 8) {
+			/* max_tmds_clock missing, but hdmi spec mandates it for deep color. */
+			DRM_DEBUG("%s: Required max tmds clock for HDMI deep color missing. Using 8 bpc.\n",
+				  connector->name);
+			bpc = 8;
 		}
 	}
 
@@ -1690,7 +1690,6 @@ amdgpu_connector_add(struct amdgpu_devic
 						   DRM_MODE_SCALE_NONE);
 			/* no HPD on analog connectors */
 			amdgpu_connector->hpd.hpd = AMDGPU_HPD_NONE;
-			connector->polled = DRM_CONNECTOR_POLL_CONNECT;
 			connector->interlace_allowed = true;
 			connector->doublescan_allowed = true;
 			break;
@@ -1893,8 +1892,10 @@ amdgpu_connector_add(struct amdgpu_devic
 	}
 
 	if (amdgpu_connector->hpd.hpd == AMDGPU_HPD_NONE) {
-		if (i2c_bus->valid)
-			connector->polled = DRM_CONNECTOR_POLL_CONNECT;
+		if (i2c_bus->valid) {
+			connector->polled = DRM_CONNECTOR_POLL_CONNECT |
+			                    DRM_CONNECTOR_POLL_DISCONNECT;
+		}
 	} else
 		connector->polled = DRM_CONNECTOR_POLL_HPD;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c	2017-12-20 04:05:01.000000000 -0500
@@ -124,6 +124,13 @@ int amdgpu_cs_get_ring(struct amdgpu_dev
 		}
 		break;
 	}
+
+	if (!(*out_ring && (*out_ring)->adev)) {
+		DRM_ERROR("Ring %d is not initialized on IP %d\n",
+			  ring, ip_type);
+		return -EINVAL;
+	}
+
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c	2017-12-20 04:05:01.000000000 -0500
@@ -1744,19 +1744,27 @@ int amdgpu_resume_kms(struct drm_device
 	}
 
 	/* post card */
-	amdgpu_atom_asic_init(adev->mode_info.atom_context);
+	if (!amdgpu_card_posted(adev))
+		amdgpu_atom_asic_init(adev->mode_info.atom_context);
 
 	r = amdgpu_resume(adev);
+	if (r)
+		DRM_ERROR("amdgpu_resume failed (%d).\n", r);
 
 	amdgpu_fence_driver_resume(adev);
 
-	r = amdgpu_ib_ring_tests(adev);
-	if (r)
-		DRM_ERROR("ib ring test failed (%d).\n", r);
+	if (resume) {
+		r = amdgpu_ib_ring_tests(adev);
+		if (r)
+			DRM_ERROR("ib ring test failed (%d).\n", r);
+	}
 
 	r = amdgpu_late_init(adev);
-	if (r)
+	if (r) {
+		if (fbcon)
+			console_unlock();
 		return r;
+	}
 
 	/* pin cursors */
 	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
@@ -1789,6 +1797,23 @@ int amdgpu_resume_kms(struct drm_device
 
 	drm_kms_helper_poll_enable(dev);
 
+	/*
+	 * Most of the connector probing functions try to acquire runtime pm
+	 * refs to ensure that the GPU is powered on when connector polling is
+	 * performed. Since we're calling this from a runtime PM callback,
+	 * trying to acquire rpm refs will cause us to deadlock.
+	 *
+	 * Since we're guaranteed to be holding the rpm lock, it's safe to
+	 * temporarily disable the rpm helpers so this doesn't deadlock us.
+	 */
+#ifdef CONFIG_PM
+	dev->dev->power.disable_depth++;
+#endif
+	drm_helper_hpd_irq_event(dev);
+#ifdef CONFIG_PM
+	dev->dev->power.disable_depth--;
+#endif
+
 	if (fbcon) {
 		amdgpu_fbdev_set_suspend(adev, 0);
 		console_unlock();
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c	2017-12-20 04:05:01.000000000 -0500
@@ -72,8 +72,8 @@ static void amdgpu_flip_work_func(struct
 
 	struct drm_crtc *crtc = &amdgpuCrtc->base;
 	unsigned long flags;
-	unsigned i;
-	int vpos, hpos, stat, min_udelay;
+	unsigned i, repcnt = 4;
+	int vpos, hpos, stat, min_udelay = 0;
 	struct drm_vblank_crtc *vblank = &crtc->dev->vblank[work->crtc_id];
 
 	amdgpu_flip_wait_fence(adev, &work->excl);
@@ -96,7 +96,7 @@ static void amdgpu_flip_work_func(struct
 	 * In practice this won't execute very often unless on very fast
 	 * machines because the time window for this to happen is very small.
 	 */
-	for (;;) {
+	while (amdgpuCrtc->enabled && --repcnt) {
 		/* GET_DISTANCE_TO_VBLANKSTART returns distance to real vblank
 		 * start in hpos, and to the "fudged earlier" vblank start in
 		 * vpos.
@@ -112,12 +112,24 @@ static void amdgpu_flip_work_func(struct
 			break;
 
 		/* Sleep at least until estimated real start of hw vblank */
-		spin_unlock_irqrestore(&crtc->dev->event_lock, flags);
 		min_udelay = (-hpos + 1) * max(vblank->linedur_ns / 1000, 5);
+		if (min_udelay > vblank->framedur_ns / 2000) {
+			/* Don't wait ridiculously long - something is wrong */
+			repcnt = 0;
+			break;
+		}
+		spin_unlock_irqrestore(&crtc->dev->event_lock, flags);
 		usleep_range(min_udelay, 2 * min_udelay);
 		spin_lock_irqsave(&crtc->dev->event_lock, flags);
 	};
 
+	if (!repcnt)
+		DRM_DEBUG_DRIVER("Delay problem on crtc %d: min_udelay %d, "
+				 "framedur %d, linedur %d, stat %d, vpos %d, "
+				 "hpos %d\n", work->crtc_id, min_udelay,
+				 vblank->framedur_ns / 1000,
+				 vblank->linedur_ns / 1000, stat, vpos, hpos);
+
 	/* do the flip (mmio) */
 	adev->mode_info.funcs->page_flip(adev, work->crtc_id, work->base);
 	/* set the flip status */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_dpm.c linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_dpm.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_dpm.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_dpm.c	2017-12-20 04:05:01.000000000 -0500
@@ -113,24 +113,26 @@ void amdgpu_dpm_print_ps_status(struct a
 	printk("\n");
 }
 
+
 u32 amdgpu_dpm_get_vblank_time(struct amdgpu_device *adev)
 {
 	struct drm_device *dev = adev->ddev;
 	struct drm_crtc *crtc;
 	struct amdgpu_crtc *amdgpu_crtc;
-	u32 line_time_us, vblank_lines;
+	u32 vblank_in_pixels;
 	u32 vblank_time_us = 0xffffffff; /* if the displays are off, vblank time is max */
 
 	if (adev->mode_info.num_crtc && adev->mode_info.mode_config_initialized) {
 		list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 			amdgpu_crtc = to_amdgpu_crtc(crtc);
 			if (crtc->enabled && amdgpu_crtc->enabled && amdgpu_crtc->hw_mode.clock) {
-				line_time_us = (amdgpu_crtc->hw_mode.crtc_htotal * 1000) /
-					amdgpu_crtc->hw_mode.clock;
-				vblank_lines = amdgpu_crtc->hw_mode.crtc_vblank_end -
+				vblank_in_pixels =
+					amdgpu_crtc->hw_mode.crtc_htotal *
+					(amdgpu_crtc->hw_mode.crtc_vblank_end -
 					amdgpu_crtc->hw_mode.crtc_vdisplay +
-					(amdgpu_crtc->v_border * 2);
-				vblank_time_us = vblank_lines * line_time_us;
+					(amdgpu_crtc->v_border * 2));
+
+				vblank_time_us = vblank_in_pixels * 1000 / amdgpu_crtc->hw_mode.clock;
 				break;
 			}
 		}
@@ -150,7 +152,7 @@ u32 amdgpu_dpm_get_vrefresh(struct amdgp
 		list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 			amdgpu_crtc = to_amdgpu_crtc(crtc);
 			if (crtc->enabled && amdgpu_crtc->enabled && amdgpu_crtc->hw_mode.clock) {
-				vrefresh = amdgpu_crtc->hw_mode.vrefresh;
+				vrefresh = drm_mode_vrefresh(&amdgpu_crtc->hw_mode);
 				break;
 			}
 		}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c	2017-12-20 04:05:01.000000000 -0500
@@ -250,11 +250,11 @@ static struct pci_device_id pciidlist[]
 	{0x1002, 0x985F, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_MULLINS|AMD_IS_MOBILITY|AMD_IS_APU},
 #endif
 	/* topaz */
-	{0x1002, 0x6900, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TOPAZ|AMD_EXP_HW_SUPPORT},
-	{0x1002, 0x6901, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TOPAZ|AMD_EXP_HW_SUPPORT},
-	{0x1002, 0x6902, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TOPAZ|AMD_EXP_HW_SUPPORT},
-	{0x1002, 0x6903, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TOPAZ|AMD_EXP_HW_SUPPORT},
-	{0x1002, 0x6907, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TOPAZ|AMD_EXP_HW_SUPPORT},
+	{0x1002, 0x6900, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TOPAZ},
+	{0x1002, 0x6901, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TOPAZ},
+	{0x1002, 0x6902, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TOPAZ},
+	{0x1002, 0x6903, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TOPAZ},
+	{0x1002, 0x6907, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TOPAZ},
 	/* tonga */
 	{0x1002, 0x6920, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TONGA},
 	{0x1002, 0x6921, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TONGA},
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c	2017-12-20 04:05:01.000000000 -0500
@@ -221,7 +221,7 @@ void amdgpu_gart_table_vram_free(struct
  * Unbinds the requested pages from the gart page table and
  * replaces them with the dummy page (all asics).
  */
-void amdgpu_gart_unbind(struct amdgpu_device *adev, unsigned offset,
+void amdgpu_gart_unbind(struct amdgpu_device *adev, uint64_t offset,
 			int pages)
 {
 	unsigned t;
@@ -269,7 +269,7 @@ void amdgpu_gart_unbind(struct amdgpu_de
  * (all asics).
  * Returns 0 for success, -EINVAL for failure.
  */
-int amdgpu_gart_bind(struct amdgpu_device *adev, unsigned offset,
+int amdgpu_gart_bind(struct amdgpu_device *adev, uint64_t offset,
 		     int pages, struct page **pagelist, dma_addr_t *dma_addr,
 		     uint32_t flags)
 {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu.h linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu.h
--- linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu.h	2017-12-20 04:05:01.000000000 -0500
@@ -532,6 +532,7 @@ struct amdgpu_bo {
 	u64				metadata_flags;
 	void				*metadata;
 	u32				metadata_size;
+	unsigned			prime_shared_count;
 	/* list of all virtual address to which this bo
 	 * is associated to
 	 */
@@ -604,8 +605,6 @@ struct amdgpu_sa_manager {
 	uint32_t		align;
 };
 
-struct amdgpu_sa_bo;
-
 /* sub-allocation buffer */
 struct amdgpu_sa_bo {
 	struct list_head		olist;
@@ -712,9 +711,9 @@ int amdgpu_gart_table_vram_pin(struct am
 void amdgpu_gart_table_vram_unpin(struct amdgpu_device *adev);
 int amdgpu_gart_init(struct amdgpu_device *adev);
 void amdgpu_gart_fini(struct amdgpu_device *adev);
-void amdgpu_gart_unbind(struct amdgpu_device *adev, unsigned offset,
+void amdgpu_gart_unbind(struct amdgpu_device *adev, uint64_t offset,
 			int pages);
-int amdgpu_gart_bind(struct amdgpu_device *adev, unsigned offset,
+int amdgpu_gart_bind(struct amdgpu_device *adev, uint64_t offset,
 		     int pages, struct page **pagelist,
 		     dma_addr_t *dma_addr, uint32_t flags);
 
@@ -1675,6 +1674,7 @@ struct amdgpu_uvd {
 	struct amdgpu_bo	*vcpu_bo;
 	void			*cpu_addr;
 	uint64_t		gpu_addr;
+	unsigned		fw_version;
 	atomic_t		handles[AMDGPU_MAX_UVD_HANDLES];
 	struct drm_file		*filp[AMDGPU_MAX_UVD_HANDLES];
 	struct delayed_work	idle_work;
@@ -2314,6 +2314,8 @@ bool amdgpu_ttm_bo_is_amdgpu_bo(struct t
 int amdgpu_ttm_tt_set_userptr(struct ttm_tt *ttm, uint64_t addr,
 				     uint32_t flags);
 bool amdgpu_ttm_tt_has_userptr(struct ttm_tt *ttm);
+bool amdgpu_ttm_tt_affect_userptr(struct ttm_tt *ttm, unsigned long start,
+				  unsigned long end);
 bool amdgpu_ttm_tt_is_readonly(struct ttm_tt *ttm);
 uint32_t amdgpu_ttm_tt_pte_flags(struct amdgpu_device *adev, struct ttm_tt *ttm,
 				 struct ttm_mem_reg *mem);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c	2017-12-20 04:05:01.000000000 -0500
@@ -288,7 +288,7 @@ void amdgpu_ib_pool_fini(struct amdgpu_d
 int amdgpu_ib_ring_tests(struct amdgpu_device *adev)
 {
 	unsigned i;
-	int r;
+	int r, ret = 0;
 
 	for (i = 0; i < AMDGPU_MAX_RINGS; ++i) {
 		struct amdgpu_ring *ring = adev->rings[i];
@@ -309,10 +309,11 @@ int amdgpu_ib_ring_tests(struct amdgpu_d
 			} else {
 				/* still not good, but we can live with it */
 				DRM_ERROR("amdgpu: failed testing IB on ring %d (%d).\n", i, r);
+				ret = r;
 			}
 		}
 	}
-	return 0;
+	return ret;
 }
 
 /*
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c	2017-12-20 04:05:01.000000000 -0500
@@ -25,6 +25,7 @@
  *          Alex Deucher
  *          Jerome Glisse
  */
+#include <linux/irq.h>
 #include <drm/drmP.h>
 #include <drm/drm_crtc_helper.h>
 #include <drm/amdgpu_drm.h>
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c	2017-12-20 04:05:01.000000000 -0500
@@ -227,7 +227,7 @@ static int amdgpu_info_ioctl(struct drm_
 			type = AMD_IP_BLOCK_TYPE_UVD;
 			ring_mask = adev->uvd.ring.ready ? 1 : 0;
 			ib_start_alignment = AMDGPU_GPU_PAGE_SIZE;
-			ib_size_alignment = 8;
+			ib_size_alignment = 16;
 			break;
 		case AMDGPU_HW_IP_VCE:
 			type = AMD_IP_BLOCK_TYPE_VCE;
@@ -303,7 +303,7 @@ static int amdgpu_info_ioctl(struct drm_
 			fw_info.feature = adev->vce.fb_version;
 			break;
 		case AMDGPU_INFO_FW_UVD:
-			fw_info.ver = 0;
+			fw_info.ver = adev->uvd.fw_version;
 			fw_info.feature = 0;
 			break;
 		case AMDGPU_INFO_FW_GMC:
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c	2017-12-20 04:05:01.000000000 -0500
@@ -142,7 +142,8 @@ static void amdgpu_mn_invalidate_range_s
 
 		list_for_each_entry(bo, &node->bos, mn_list) {
 
-			if (!bo->tbo.ttm || bo->tbo.ttm->state != tt_bound)
+			if (!amdgpu_ttm_tt_affect_userptr(bo->tbo.ttm, start,
+							  end))
 				continue;
 
 			r = amdgpu_bo_reserve(bo, true);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h
--- linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h	2017-12-20 04:05:01.000000000 -0500
@@ -52,7 +52,7 @@ struct amdgpu_hpd;
 
 #define AMDGPU_MAX_HPD_PINS 6
 #define AMDGPU_MAX_CRTCS 6
-#define AMDGPU_MAX_AFMT_BLOCKS 7
+#define AMDGPU_MAX_AFMT_BLOCKS 9
 
 enum amdgpu_rmx_type {
 	RMX_OFF,
@@ -308,8 +308,8 @@ struct amdgpu_mode_info {
 	struct atom_context *atom_context;
 	struct card_info *atom_card_info;
 	bool mode_config_initialized;
-	struct amdgpu_crtc *crtcs[6];
-	struct amdgpu_afmt *afmt[7];
+	struct amdgpu_crtc *crtcs[AMDGPU_MAX_CRTCS];
+	struct amdgpu_afmt *afmt[AMDGPU_MAX_AFMT_BLOCKS];
 	/* DVI-I properties */
 	struct drm_property *coherent_mode_property;
 	/* DAC enable load detect */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c	2017-12-20 04:05:01.000000000 -0500
@@ -33,6 +33,7 @@
 #include <linux/slab.h>
 #include <drm/drmP.h>
 #include <drm/amdgpu_drm.h>
+#include <drm/drm_cache.h>
 #include "amdgpu.h"
 #include "amdgpu_trace.h"
 
@@ -261,6 +262,13 @@ int amdgpu_bo_create_restricted(struct a
 				       AMDGPU_GEM_DOMAIN_OA);
 
 	bo->flags = flags;
+
+	/* For architectures that don't support WC memory,
+	 * mask out the WC flag from the BO
+	 */
+	if (!drm_arch_can_wc_memory())
+		bo->flags &= ~AMDGPU_GEM_CREATE_CPU_GTT_USWC;
+
 	amdgpu_fill_placement_to_bo(bo, placement);
 	/* Kernel allocation are uninterruptible */
 	r = ttm_bo_init(&adev->mman.bdev, &bo->tbo, size, type,
@@ -399,7 +407,8 @@ int amdgpu_bo_pin_restricted(struct amdg
 		}
 		if (fpfn > bo->placements[i].fpfn)
 			bo->placements[i].fpfn = fpfn;
-		if (lpfn && lpfn < bo->placements[i].lpfn)
+		if (!bo->placements[i].lpfn ||
+		    (lpfn && lpfn < bo->placements[i].lpfn))
 			bo->placements[i].lpfn = lpfn;
 		bo->placements[i].flags |= TTM_PL_FLAG_NO_EVICT;
 	}
@@ -531,6 +540,7 @@ int amdgpu_bo_set_metadata (struct amdgp
 	if (!metadata_size) {
 		if (bo->metadata_size) {
 			kfree(bo->metadata);
+			bo->metadata = NULL;
 			bo->metadata_size = 0;
 		}
 		return 0;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c	2017-12-20 04:05:01.000000000 -0500
@@ -595,11 +595,6 @@ force:
 
 	/* update display watermarks based on new power state */
 	amdgpu_display_bandwidth_update(adev);
-	/* update displays */
-	amdgpu_dpm_display_configuration_changed(adev);
-
-	adev->pm.dpm.current_active_crtcs = adev->pm.dpm.new_active_crtcs;
-	adev->pm.dpm.current_active_crtc_count = adev->pm.dpm.new_active_crtc_count;
 
 	/* wait for the rings to drain */
 	for (i = 0; i < AMDGPU_MAX_RINGS; i++) {
@@ -616,6 +611,12 @@ force:
 
 	amdgpu_dpm_post_set_power_state(adev);
 
+	/* update displays */
+	amdgpu_dpm_display_configuration_changed(adev);
+
+	adev->pm.dpm.current_active_crtcs = adev->pm.dpm.new_active_crtcs;
+	adev->pm.dpm.current_active_crtc_count = adev->pm.dpm.new_active_crtc_count;
+
 	if (adev->pm.funcs->force_performance_level) {
 		if (adev->pm.dpm.thermal_active) {
 			enum amdgpu_dpm_forced_level level = adev->pm.dpm.forced_level;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_prime.c linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_prime.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_prime.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_prime.c	2017-12-20 04:05:01.000000000 -0500
@@ -77,20 +77,36 @@ struct drm_gem_object *amdgpu_gem_prime_
 	list_add_tail(&bo->list, &adev->gem.objects);
 	mutex_unlock(&adev->gem.mutex);
 
+	bo->prime_shared_count = 1;
 	return &bo->gem_base;
 }
 
 int amdgpu_gem_prime_pin(struct drm_gem_object *obj)
 {
 	struct amdgpu_bo *bo = gem_to_amdgpu_bo(obj);
-	int ret = 0;
+	long ret = 0;
 
 	ret = amdgpu_bo_reserve(bo, false);
 	if (unlikely(ret != 0))
 		return ret;
 
+	/*
+	 * Wait for all shared fences to complete before we switch to future
+	 * use of exclusive fence on this prime shared bo.
+	 */
+	ret = reservation_object_wait_timeout_rcu(bo->tbo.resv, true, false,
+						  MAX_SCHEDULE_TIMEOUT);
+	if (unlikely(ret < 0)) {
+		DRM_DEBUG_PRIME("Fence wait failed: %li\n", ret);
+		amdgpu_bo_unreserve(bo);
+		return ret;
+	}
+
 	/* pin buffer into GTT */
 	ret = amdgpu_bo_pin(bo, AMDGPU_GEM_DOMAIN_GTT, NULL);
+	if (likely(ret == 0))
+		bo->prime_shared_count++;
+
 	amdgpu_bo_unreserve(bo);
 	return ret;
 }
@@ -105,6 +121,8 @@ void amdgpu_gem_prime_unpin(struct drm_g
 		return;
 
 	amdgpu_bo_unpin(bo);
+	if (bo->prime_shared_count)
+		bo->prime_shared_count--;
 	amdgpu_bo_unreserve(bo);
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_sa.c linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_sa.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_sa.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_sa.c	2017-12-20 04:05:01.000000000 -0500
@@ -354,12 +354,15 @@ int amdgpu_sa_bo_new(struct amdgpu_sa_ma
 
 		for (i = 0, count = 0; i < AMDGPU_MAX_RINGS; ++i)
 			if (fences[i])
-				fences[count++] = fences[i];
+				fences[count++] = fence_get(fences[i]);
 
 		if (count) {
 			spin_unlock(&sa_manager->wq.lock);
 			t = fence_wait_any_timeout(fences, count, false,
 						   MAX_SCHEDULE_TIMEOUT);
+			for (i = 0; i < count; ++i)
+				fence_put(fences[i]);
+
 			r = (t > 0) ? 0 : t;
 			spin_lock(&sa_manager->wq.lock);
 		} else {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_sync.c linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_sync.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_sync.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_sync.c	2017-12-20 04:05:01.000000000 -0500
@@ -293,7 +293,8 @@ int amdgpu_sync_rings(struct amdgpu_sync
 		fence = to_amdgpu_fence(sync->sync_to[i]);
 
 		/* check if we really need to sync */
-		if (!amdgpu_fence_need_sync(fence, ring))
+		if (!amdgpu_enable_scheduler &&
+		    !amdgpu_fence_need_sync(fence, ring))
 			continue;
 
 		/* prevent GPU deadlocks */
@@ -303,7 +304,7 @@ int amdgpu_sync_rings(struct amdgpu_sync
 		}
 
 		if (amdgpu_enable_scheduler || !amdgpu_enable_semaphores) {
-			r = fence_wait(&fence->base, true);
+			r = fence_wait(sync->sync_to[i], true);
 			if (r)
 				return r;
 			continue;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c	2017-12-20 04:05:01.000000000 -0500
@@ -233,8 +233,8 @@ static int amdgpu_move_blit(struct ttm_b
 
 	adev = amdgpu_get_adev(bo->bdev);
 	ring = adev->mman.buffer_funcs_ring;
-	old_start = old_mem->start << PAGE_SHIFT;
-	new_start = new_mem->start << PAGE_SHIFT;
+	old_start = (u64)old_mem->start << PAGE_SHIFT;
+	new_start = (u64)new_mem->start << PAGE_SHIFT;
 
 	switch (old_mem->mem_type) {
 	case TTM_PL_VRAM:
@@ -712,7 +712,7 @@ static int amdgpu_ttm_tt_populate(struct
 						       0, PAGE_SIZE,
 						       PCI_DMA_BIDIRECTIONAL);
 		if (pci_dma_mapping_error(adev->pdev, gtt->ttm.dma_address[i])) {
-			while (--i) {
+			while (i--) {
 				pci_unmap_page(adev->pdev, gtt->ttm.dma_address[i],
 					       PAGE_SIZE, PCI_DMA_BIDIRECTIONAL);
 				gtt->ttm.dma_address[i] = 0;
@@ -783,6 +783,25 @@ bool amdgpu_ttm_tt_has_userptr(struct tt
 	return !!gtt->userptr;
 }
 
+bool amdgpu_ttm_tt_affect_userptr(struct ttm_tt *ttm, unsigned long start,
+				  unsigned long end)
+{
+	struct amdgpu_ttm_tt *gtt = (void *)ttm;
+	unsigned long size;
+
+	if (gtt == NULL)
+		return false;
+
+	if (gtt->ttm.ttm.state != tt_bound || !gtt->userptr)
+		return false;
+
+	size = (unsigned long)gtt->ttm.ttm.num_pages * PAGE_SIZE;
+	if (gtt->userptr > end || gtt->userptr + size <= start)
+		return false;
+
+	return true;
+}
+
 bool amdgpu_ttm_tt_is_readonly(struct ttm_tt *ttm)
 {
 	struct amdgpu_ttm_tt *gtt = (void *)ttm;
@@ -808,7 +827,7 @@ uint32_t amdgpu_ttm_tt_pte_flags(struct
 			flags |= AMDGPU_PTE_SNOOPED;
 	}
 
-	if (adev->asic_type >= CHIP_TOPAZ)
+	if (adev->asic_type >= CHIP_TONGA)
 		flags |= AMDGPU_PTE_EXECUTABLE;
 
 	flags |= AMDGPU_PTE_READABLE;
@@ -1107,6 +1126,9 @@ static ssize_t amdgpu_ttm_vram_read(stru
 	if (size & 0x3 || *pos & 0x3)
 		return -EINVAL;
 
+	if (*pos >= adev->mc.mc_vram_size)
+		return -ENXIO;
+
 	while (size) {
 		unsigned long flags;
 		uint32_t value;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c	2016-01-10 20:55:59.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c	2017-12-20 11:08:57.000000000 -0500
@@ -149,6 +149,9 @@ int amdgpu_uvd_sw_init(struct amdgpu_dev
 	DRM_INFO("Found UVD firmware Version: %hu.%hu Family ID: %hu\n",
 		version_major, version_minor, family_id);
 
+	adev->uvd.fw_version = ((version_major << 24) | (version_minor << 16) |
+				(family_id << 8));
+
 	bo_size = AMDGPU_GPU_PAGE_ALIGN(le32_to_cpu(hdr->ucode_size_bytes) + 8)
 		 +  AMDGPU_UVD_STACK_SIZE + AMDGPU_UVD_HEAP_SIZE;
 	r = amdgpu_bo_create(adev, bo_size, PAGE_SIZE, true,
@@ -266,6 +269,8 @@ int amdgpu_uvd_resume(struct amdgpu_devi
 	memcpy(adev->uvd.cpu_addr, (adev->uvd.fw->data) + offset,
 		(adev->uvd.fw->size) - offset);
 
+	cancel_delayed_work_sync(&adev->uvd.idle_work);
+
 	size = amdgpu_bo_size(adev->uvd.vcpu_bo);
 	size -= le32_to_cpu(hdr->ucode_size_bytes);
 	ptr = adev->uvd.cpu_addr;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c	2016-01-10 20:56:02.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c	2017-12-20 11:09:02.000000000 -0500
@@ -213,6 +213,7 @@ int amdgpu_vce_suspend(struct amdgpu_dev
 	if (i == AMDGPU_MAX_VCE_HANDLES)
 		return 0;
 
+	cancel_delayed_work_sync(&adev->vce.idle_work);
 	/* TODO: suspending running encoding sessions isn't supported */
 	return -EINVAL;
 }
@@ -276,6 +277,10 @@ static void amdgpu_vce_idle_work_handler
 			amdgpu_dpm_enable_vce(adev, false);
 		} else {
 			amdgpu_asic_set_vce_clocks(adev, 0, 0);
+			amdgpu_set_powergating_state(adev, AMD_IP_BLOCK_TYPE_VCE,
+							    AMD_PG_STATE_GATE);
+			amdgpu_set_clockgating_state(adev, AMD_IP_BLOCK_TYPE_VCE,
+							    AMD_CG_STATE_GATE);
 		}
 	} else {
 		schedule_delayed_work(&adev->vce.idle_work,
@@ -307,6 +312,11 @@ static void amdgpu_vce_note_usage(struct
 			amdgpu_dpm_enable_vce(adev, true);
 		} else {
 			amdgpu_asic_set_vce_clocks(adev, 53300, 40000);
+			amdgpu_set_clockgating_state(adev, AMD_IP_BLOCK_TYPE_VCE,
+							    AMD_CG_STATE_UNGATE);
+			amdgpu_set_powergating_state(adev, AMD_IP_BLOCK_TYPE_VCE,
+							    AMD_PG_STATE_UNGATE);
+
 		}
 	}
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c	2017-12-20 04:05:01.000000000 -0500
@@ -1010,13 +1010,13 @@ int amdgpu_vm_bo_map(struct amdgpu_devic
 		return -EINVAL;
 
 	/* make sure object fit at this offset */
-	eaddr = saddr + size;
+	eaddr = saddr + size - 1;
 	if ((saddr >= eaddr) || (offset + size > amdgpu_bo_size(bo_va->bo)))
 		return -EINVAL;
 
 	last_pfn = eaddr / AMDGPU_GPU_PAGE_SIZE;
-	if (last_pfn > adev->vm_manager.max_pfn) {
-		dev_err(adev->dev, "va above limit (0x%08X > 0x%08X)\n",
+	if (last_pfn >= adev->vm_manager.max_pfn) {
+		dev_err(adev->dev, "va above limit (0x%08X >= 0x%08X)\n",
 			last_pfn, adev->vm_manager.max_pfn);
 		return -EINVAL;
 	}
@@ -1025,7 +1025,7 @@ int amdgpu_vm_bo_map(struct amdgpu_devic
 	eaddr /= AMDGPU_GPU_PAGE_SIZE;
 
 	spin_lock(&vm->it_lock);
-	it = interval_tree_iter_first(&vm->va, saddr, eaddr - 1);
+	it = interval_tree_iter_first(&vm->va, saddr, eaddr);
 	spin_unlock(&vm->it_lock);
 	if (it) {
 		struct amdgpu_bo_va_mapping *tmp;
@@ -1046,7 +1046,7 @@ int amdgpu_vm_bo_map(struct amdgpu_devic
 
 	INIT_LIST_HEAD(&mapping->list);
 	mapping->it.start = saddr;
-	mapping->it.last = eaddr - 1;
+	mapping->it.last = eaddr;
 	mapping->offset = offset;
 	mapping->flags = flags;
 
@@ -1248,7 +1248,7 @@ int amdgpu_vm_init(struct amdgpu_device
 {
 	const unsigned align = min(AMDGPU_VM_PTB_ALIGN_SIZE,
 		AMDGPU_VM_PTE_COUNT * 8);
-	unsigned pd_size, pd_entries, pts_size;
+	unsigned pd_size, pd_entries;
 	int i, r;
 
 	for (i = 0; i < AMDGPU_MAX_RINGS; ++i) {
@@ -1266,8 +1266,7 @@ int amdgpu_vm_init(struct amdgpu_device
 	pd_entries = amdgpu_vm_num_pdes(adev);
 
 	/* allocate page table array */
-	pts_size = pd_entries * sizeof(struct amdgpu_vm_pt);
-	vm->page_tables = kzalloc(pts_size, GFP_KERNEL);
+	vm->page_tables = drm_calloc_large(pd_entries, sizeof(struct amdgpu_vm_pt));
 	if (vm->page_tables == NULL) {
 		DRM_ERROR("Cannot allocate memory for page table array\n");
 		return -ENOMEM;
@@ -1327,7 +1326,7 @@ void amdgpu_vm_fini(struct amdgpu_device
 
 	for (i = 0; i < amdgpu_vm_num_pdes(adev); i++)
 		amdgpu_bo_unref(&vm->page_tables[i].bo);
-	kfree(vm->page_tables);
+	drm_free_large(vm->page_tables);
 
 	amdgpu_bo_unref(&vm->page_directory);
 	fence_put(vm->page_directory_fence);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/atombios_crtc.c linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/atombios_crtc.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/atombios_crtc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/atombios_crtc.c	2017-12-20 04:05:01.000000000 -0500
@@ -164,7 +164,7 @@ void amdgpu_atombios_crtc_powergate(stru
 	struct drm_device *dev = crtc->dev;
 	struct amdgpu_device *adev = dev->dev_private;
 	int index = GetIndexIntoMasterTable(COMMAND, EnableDispPowerGating);
-	ENABLE_DISP_POWER_GATING_PARAMETERS_V2_1 args;
+	ENABLE_DISP_POWER_GATING_PS_ALLOCATION args;
 
 	memset(&args, 0, sizeof(args));
 
@@ -177,7 +177,7 @@ void amdgpu_atombios_crtc_powergate(stru
 void amdgpu_atombios_crtc_powergate_init(struct amdgpu_device *adev)
 {
 	int index = GetIndexIntoMasterTable(COMMAND, EnableDispPowerGating);
-	ENABLE_DISP_POWER_GATING_PARAMETERS_V2_1 args;
+	ENABLE_DISP_POWER_GATING_PS_ALLOCATION args;
 
 	memset(&args, 0, sizeof(args));
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/atombios_dp.c linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/atombios_dp.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/atombios_dp.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/atombios_dp.c	2017-12-20 04:05:01.000000000 -0500
@@ -243,7 +243,7 @@ static void amdgpu_atombios_dp_get_adjus
 
 /* convert bits per color to bits per pixel */
 /* get bpc from the EDID */
-static int amdgpu_atombios_dp_convert_bpc_to_bpp(int bpc)
+static unsigned amdgpu_atombios_dp_convert_bpc_to_bpp(int bpc)
 {
 	if (bpc == 0)
 		return 24;
@@ -251,64 +251,44 @@ static int amdgpu_atombios_dp_convert_bp
 		return bpc * 3;
 }
 
-/* get the max pix clock supported by the link rate and lane num */
-static int amdgpu_atombios_dp_get_max_dp_pix_clock(int link_rate,
-					    int lane_num,
-					    int bpp)
-{
-	return (link_rate * lane_num * 8) / bpp;
-}
-
 /***** amdgpu specific DP functions *****/
 
-/* First get the min lane# when low rate is used according to pixel clock
- * (prefer low rate), second check max lane# supported by DP panel,
- * if the max lane# < low rate lane# then use max lane# instead.
- */
-static int amdgpu_atombios_dp_get_dp_lane_number(struct drm_connector *connector,
+static int amdgpu_atombios_dp_get_dp_link_config(struct drm_connector *connector,
 						 const u8 dpcd[DP_DPCD_SIZE],
-						 int pix_clock)
-{
-	int bpp = amdgpu_atombios_dp_convert_bpc_to_bpp(amdgpu_connector_get_monitor_bpc(connector));
-	int max_link_rate = drm_dp_max_link_rate(dpcd);
-	int max_lane_num = drm_dp_max_lane_count(dpcd);
-	int lane_num;
-	int max_dp_pix_clock;
-
-	for (lane_num = 1; lane_num < max_lane_num; lane_num <<= 1) {
-		max_dp_pix_clock = amdgpu_atombios_dp_get_max_dp_pix_clock(max_link_rate, lane_num, bpp);
-		if (pix_clock <= max_dp_pix_clock)
-			break;
-	}
-
-	return lane_num;
-}
-
-static int amdgpu_atombios_dp_get_dp_link_clock(struct drm_connector *connector,
-						const u8 dpcd[DP_DPCD_SIZE],
-						int pix_clock)
+						 unsigned pix_clock,
+						 unsigned *dp_lanes, unsigned *dp_rate)
 {
-	int bpp = amdgpu_atombios_dp_convert_bpc_to_bpp(amdgpu_connector_get_monitor_bpc(connector));
-	int lane_num, max_pix_clock;
+	unsigned bpp =
+		amdgpu_atombios_dp_convert_bpc_to_bpp(amdgpu_connector_get_monitor_bpc(connector));
+	static const unsigned link_rates[3] = { 162000, 270000, 540000 };
+	unsigned max_link_rate = drm_dp_max_link_rate(dpcd);
+	unsigned max_lane_num = drm_dp_max_lane_count(dpcd);
+	unsigned lane_num, i, max_pix_clock;
 
 	if (amdgpu_connector_encoder_get_dp_bridge_encoder_id(connector) ==
-	    ENCODER_OBJECT_ID_NUTMEG)
-		return 270000;
-
-	lane_num = amdgpu_atombios_dp_get_dp_lane_number(connector, dpcd, pix_clock);
-	max_pix_clock = amdgpu_atombios_dp_get_max_dp_pix_clock(162000, lane_num, bpp);
-	if (pix_clock <= max_pix_clock)
-		return 162000;
-	max_pix_clock = amdgpu_atombios_dp_get_max_dp_pix_clock(270000, lane_num, bpp);
-	if (pix_clock <= max_pix_clock)
-		return 270000;
-	if (amdgpu_connector_is_dp12_capable(connector)) {
-		max_pix_clock = amdgpu_atombios_dp_get_max_dp_pix_clock(540000, lane_num, bpp);
-		if (pix_clock <= max_pix_clock)
-			return 540000;
+	    ENCODER_OBJECT_ID_NUTMEG) {
+		for (lane_num = 1; lane_num <= max_lane_num; lane_num <<= 1) {
+			max_pix_clock = (lane_num * 270000 * 8) / bpp;
+			if (max_pix_clock >= pix_clock) {
+				*dp_lanes = lane_num;
+				*dp_rate = 270000;
+				return 0;
+			}
+		}
+	} else {
+		for (i = 0; i < ARRAY_SIZE(link_rates) && link_rates[i] <= max_link_rate; i++) {
+			for (lane_num = 1; lane_num <= max_lane_num; lane_num <<= 1) {
+				max_pix_clock = (lane_num * link_rates[i] * 8) / bpp;
+				if (max_pix_clock >= pix_clock) {
+					*dp_lanes = lane_num;
+					*dp_rate = link_rates[i];
+					return 0;
+				}
+			}
+		}
 	}
 
-	return drm_dp_max_link_rate(dpcd);
+	return -EINVAL;
 }
 
 static u8 amdgpu_atombios_dp_encoder_service(struct amdgpu_device *adev,
@@ -422,6 +402,7 @@ void amdgpu_atombios_dp_set_link_config(
 {
 	struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector);
 	struct amdgpu_connector_atom_dig *dig_connector;
+	int ret;
 
 	if (!amdgpu_connector->con_priv)
 		return;
@@ -429,10 +410,14 @@ void amdgpu_atombios_dp_set_link_config(
 
 	if ((dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT) ||
 	    (dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_eDP)) {
-		dig_connector->dp_clock =
-			amdgpu_atombios_dp_get_dp_link_clock(connector, dig_connector->dpcd, mode->clock);
-		dig_connector->dp_lane_count =
-			amdgpu_atombios_dp_get_dp_lane_number(connector, dig_connector->dpcd, mode->clock);
+		ret = amdgpu_atombios_dp_get_dp_link_config(connector, dig_connector->dpcd,
+							    mode->clock,
+							    &dig_connector->dp_lane_count,
+							    &dig_connector->dp_clock);
+		if (ret) {
+			dig_connector->dp_clock = 0;
+			dig_connector->dp_lane_count = 0;
+		}
 	}
 }
 
@@ -441,14 +426,17 @@ int amdgpu_atombios_dp_mode_valid_helper
 {
 	struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector);
 	struct amdgpu_connector_atom_dig *dig_connector;
-	int dp_clock;
+	unsigned dp_lanes, dp_clock;
+	int ret;
 
 	if (!amdgpu_connector->con_priv)
 		return MODE_CLOCK_HIGH;
 	dig_connector = amdgpu_connector->con_priv;
 
-	dp_clock =
-		amdgpu_atombios_dp_get_dp_link_clock(connector, dig_connector->dpcd, mode->clock);
+	ret = amdgpu_atombios_dp_get_dp_link_config(connector, dig_connector->dpcd,
+						    mode->clock, &dp_lanes, &dp_clock);
+	if (ret)
+		return MODE_CLOCK_HIGH;
 
 	if ((dp_clock == 540000) &&
 	    (!amdgpu_connector_is_dp12_capable(connector)))
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/atombios_encoders.c linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/atombios_encoders.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/atombios_encoders.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/atombios_encoders.c	2017-12-20 04:05:01.000000000 -0500
@@ -98,6 +98,7 @@ amdgpu_atombios_encoder_set_backlight_le
 		case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_LVTMA:
 		case ENCODER_OBJECT_ID_INTERNAL_UNIPHY1:
 		case ENCODER_OBJECT_ID_INTERNAL_UNIPHY2:
+		case ENCODER_OBJECT_ID_INTERNAL_UNIPHY3:
 			if (dig->backlight_level == 0)
 				amdgpu_atombios_encoder_setup_dig_transmitter(encoder,
 								       ATOM_TRANSMITTER_ACTION_LCD_BLOFF, 0, 0);
@@ -298,6 +299,10 @@ bool amdgpu_atombios_encoder_mode_fixup(
 	    && (mode->crtc_vsync_start < (mode->crtc_vdisplay + 2)))
 		adjusted_mode->crtc_vsync_start = adjusted_mode->crtc_vdisplay + 2;
 
+	/* vertical FP must be at least 1 */
+	if (mode->crtc_vsync_start == mode->crtc_vdisplay)
+		adjusted_mode->crtc_vsync_start++;
+
 	/* get the native mode for scaling */
 	if (amdgpu_encoder->active_device & (ATOM_DEVICE_LCD_SUPPORT))
 		amdgpu_panel_mode_fixup(encoder, adjusted_mode);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/ci_dpm.c linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/ci_dpm.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/ci_dpm.c	2016-01-10 20:56:31.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/ci_dpm.c	2017-12-20 11:10:05.000000000 -0500
@@ -892,6 +892,12 @@ static bool ci_dpm_vblank_too_short(stru
 	u32 vblank_time = amdgpu_dpm_get_vblank_time(adev);
 	u32 switch_limit = adev->mc.vram_type == AMDGPU_VRAM_TYPE_GDDR5 ? 450 : 300;
 
+	/* disable mclk switching if the refresh is >120Hz, even if the
+	 * blanking period would allow it
+	 */
+	if (amdgpu_dpm_get_vrefresh(adev) > 120)
+		return true;
+
 	if (vblank_time < switch_limit)
 		return true;
 	else
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/cik_sdma.c linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/cik_sdma.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/cik_sdma.c	2016-01-10 20:56:34.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/cik_sdma.c	2017-12-20 11:10:11.000000000 -0500
@@ -52,6 +52,7 @@ static void cik_sdma_set_ring_funcs(stru
 static void cik_sdma_set_irq_funcs(struct amdgpu_device *adev);
 static void cik_sdma_set_buffer_funcs(struct amdgpu_device *adev);
 static void cik_sdma_set_vm_pte_funcs(struct amdgpu_device *adev);
+static int cik_sdma_soft_reset(void *handle);
 
 /*(DEBLOBBED)*/
 
@@ -1021,6 +1022,8 @@ static int cik_sdma_resume(void *handle)
 {
 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 
+	cik_sdma_soft_reset(handle);
+
 	return cik_sdma_hw_init(adev);
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/cz_dpm.c linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/cz_dpm.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/cz_dpm.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/cz_dpm.c	2017-12-20 04:05:01.000000000 -0500
@@ -1955,10 +1955,8 @@ static void cz_dpm_powergate_vce(struct
 		}
 	} else { /*pi->caps_vce_pg*/
 		cz_update_vce_dpm(adev);
-		cz_enable_vce_dpm(adev, true);
+		cz_enable_vce_dpm(adev, !gate);
 	}
-
-	return;
 }
 
 const struct amd_ip_funcs cz_dpm_ip_funcs = {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/dce_v10_0.c linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/dce_v10_0.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/dce_v10_0.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/dce_v10_0.c	2017-12-20 04:05:01.000000000 -0500
@@ -419,16 +419,6 @@ static void dce_v10_0_hpd_init(struct am
 	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 		struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector);
 
-		if (connector->connector_type == DRM_MODE_CONNECTOR_eDP ||
-		    connector->connector_type == DRM_MODE_CONNECTOR_LVDS) {
-			/* don't try to enable hpd on eDP or LVDS avoid breaking the
-			 * aux dp channel on imac and help (but not completely fix)
-			 * https://bugzilla.redhat.com/show_bug.cgi?id=726143
-			 * also avoid interrupt storms during dpms.
-			 */
-			continue;
-		}
-
 		switch (amdgpu_connector->hpd.hpd) {
 		case AMDGPU_HPD_1:
 			idx = 0;
@@ -452,6 +442,19 @@ static void dce_v10_0_hpd_init(struct am
 			continue;
 		}
 
+		if (connector->connector_type == DRM_MODE_CONNECTOR_eDP ||
+		    connector->connector_type == DRM_MODE_CONNECTOR_LVDS) {
+			/* don't try to enable hpd on eDP or LVDS avoid breaking the
+			 * aux dp channel on imac and help (but not completely fix)
+			 * https://bugzilla.redhat.com/show_bug.cgi?id=726143
+			 * also avoid interrupt storms during dpms.
+			 */
+			tmp = RREG32(mmDC_HPD_INT_CONTROL + hpd_offsets[idx]);
+			tmp = REG_SET_FIELD(tmp, DC_HPD_INT_CONTROL, DC_HPD_INT_EN, 0);
+			WREG32(mmDC_HPD_INT_CONTROL + hpd_offsets[idx], tmp);
+			continue;
+		}
+
 		tmp = RREG32(mmDC_HPD_CONTROL + hpd_offsets[idx]);
 		tmp = REG_SET_FIELD(tmp, DC_HPD_CONTROL, DC_HPD_EN, 1);
 		WREG32(mmDC_HPD_CONTROL + hpd_offsets[idx], tmp);
@@ -1123,23 +1126,10 @@ static u32 dce_v10_0_latency_watermark(s
 	a.full = dfixed_const(available_bandwidth);
 	b.full = dfixed_const(wm->num_heads);
 	a.full = dfixed_div(a, b);
+	tmp = div_u64((u64) dmif_size * (u64) wm->disp_clk, mc_latency + 512);
+	tmp = min(dfixed_trunc(a), tmp);
 
-	b.full = dfixed_const(mc_latency + 512);
-	c.full = dfixed_const(wm->disp_clk);
-	b.full = dfixed_div(b, c);
-
-	c.full = dfixed_const(dmif_size);
-	b.full = dfixed_div(c, b);
-
-	tmp = min(dfixed_trunc(a), dfixed_trunc(b));
-
-	b.full = dfixed_const(1000);
-	c.full = dfixed_const(wm->disp_clk);
-	b.full = dfixed_div(c, b);
-	c.full = dfixed_const(wm->bytes_per_pixel);
-	b.full = dfixed_mul(b, c);
-
-	lb_fill_bw = min(tmp, dfixed_trunc(b));
+	lb_fill_bw = min(tmp, wm->disp_clk * wm->bytes_per_pixel / 1000);
 
 	a.full = dfixed_const(max_src_lines_per_dst_line * wm->src_width * wm->bytes_per_pixel);
 	b.full = dfixed_const(1000);
@@ -1247,14 +1237,14 @@ static void dce_v10_0_program_watermarks
 {
 	struct drm_display_mode *mode = &amdgpu_crtc->base.mode;
 	struct dce10_wm_params wm_low, wm_high;
-	u32 pixel_period;
+	u32 active_time;
 	u32 line_time = 0;
 	u32 latency_watermark_a = 0, latency_watermark_b = 0;
 	u32 tmp, wm_mask, lb_vblank_lead_lines = 0;
 
 	if (amdgpu_crtc->base.enabled && num_heads && mode) {
-		pixel_period = 1000000 / (u32)mode->clock;
-		line_time = min((u32)mode->crtc_htotal * pixel_period, (u32)65535);
+		active_time = 1000000UL * (u32)mode->crtc_hdisplay / (u32)mode->clock;
+		line_time = min((u32) (1000000UL * (u32)mode->crtc_htotal / (u32)mode->clock), (u32)65535);
 
 		/* watermark for high clocks */
 		if (adev->pm.dpm_enabled) {
@@ -1269,7 +1259,7 @@ static void dce_v10_0_program_watermarks
 
 		wm_high.disp_clk = mode->clock;
 		wm_high.src_width = mode->crtc_hdisplay;
-		wm_high.active_time = mode->crtc_hdisplay * pixel_period;
+		wm_high.active_time = active_time;
 		wm_high.blank_time = line_time - wm_high.active_time;
 		wm_high.interlaced = false;
 		if (mode->flags & DRM_MODE_FLAG_INTERLACE)
@@ -1308,7 +1298,7 @@ static void dce_v10_0_program_watermarks
 
 		wm_low.disp_clk = mode->clock;
 		wm_low.src_width = mode->crtc_hdisplay;
-		wm_low.active_time = mode->crtc_hdisplay * pixel_period;
+		wm_low.active_time = active_time;
 		wm_low.blank_time = line_time - wm_low.active_time;
 		wm_low.interlaced = false;
 		if (mode->flags & DRM_MODE_FLAG_INTERLACE)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/dce_v11_0.c linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/dce_v11_0.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/dce_v11_0.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/dce_v11_0.c	2017-12-20 04:05:01.000000000 -0500
@@ -409,16 +409,6 @@ static void dce_v11_0_hpd_init(struct am
 	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 		struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector);
 
-		if (connector->connector_type == DRM_MODE_CONNECTOR_eDP ||
-		    connector->connector_type == DRM_MODE_CONNECTOR_LVDS) {
-			/* don't try to enable hpd on eDP or LVDS avoid breaking the
-			 * aux dp channel on imac and help (but not completely fix)
-			 * https://bugzilla.redhat.com/show_bug.cgi?id=726143
-			 * also avoid interrupt storms during dpms.
-			 */
-			continue;
-		}
-
 		switch (amdgpu_connector->hpd.hpd) {
 		case AMDGPU_HPD_1:
 			idx = 0;
@@ -442,6 +432,19 @@ static void dce_v11_0_hpd_init(struct am
 			continue;
 		}
 
+		if (connector->connector_type == DRM_MODE_CONNECTOR_eDP ||
+		    connector->connector_type == DRM_MODE_CONNECTOR_LVDS) {
+			/* don't try to enable hpd on eDP or LVDS avoid breaking the
+			 * aux dp channel on imac and help (but not completely fix)
+			 * https://bugzilla.redhat.com/show_bug.cgi?id=726143
+			 * also avoid interrupt storms during dpms.
+			 */
+			tmp = RREG32(mmDC_HPD_INT_CONTROL + hpd_offsets[idx]);
+			tmp = REG_SET_FIELD(tmp, DC_HPD_INT_CONTROL, DC_HPD_INT_EN, 0);
+			WREG32(mmDC_HPD_INT_CONTROL + hpd_offsets[idx], tmp);
+			continue;
+		}
+
 		tmp = RREG32(mmDC_HPD_CONTROL + hpd_offsets[idx]);
 		tmp = REG_SET_FIELD(tmp, DC_HPD_CONTROL, DC_HPD_EN, 1);
 		WREG32(mmDC_HPD_CONTROL + hpd_offsets[idx], tmp);
@@ -1111,23 +1114,10 @@ static u32 dce_v11_0_latency_watermark(s
 	a.full = dfixed_const(available_bandwidth);
 	b.full = dfixed_const(wm->num_heads);
 	a.full = dfixed_div(a, b);
+	tmp = div_u64((u64) dmif_size * (u64) wm->disp_clk, mc_latency + 512);
+	tmp = min(dfixed_trunc(a), tmp);
 
-	b.full = dfixed_const(mc_latency + 512);
-	c.full = dfixed_const(wm->disp_clk);
-	b.full = dfixed_div(b, c);
-
-	c.full = dfixed_const(dmif_size);
-	b.full = dfixed_div(c, b);
-
-	tmp = min(dfixed_trunc(a), dfixed_trunc(b));
-
-	b.full = dfixed_const(1000);
-	c.full = dfixed_const(wm->disp_clk);
-	b.full = dfixed_div(c, b);
-	c.full = dfixed_const(wm->bytes_per_pixel);
-	b.full = dfixed_mul(b, c);
-
-	lb_fill_bw = min(tmp, dfixed_trunc(b));
+	lb_fill_bw = min(tmp, wm->disp_clk * wm->bytes_per_pixel / 1000);
 
 	a.full = dfixed_const(max_src_lines_per_dst_line * wm->src_width * wm->bytes_per_pixel);
 	b.full = dfixed_const(1000);
@@ -1235,14 +1225,14 @@ static void dce_v11_0_program_watermarks
 {
 	struct drm_display_mode *mode = &amdgpu_crtc->base.mode;
 	struct dce10_wm_params wm_low, wm_high;
-	u32 pixel_period;
+	u32 active_time;
 	u32 line_time = 0;
 	u32 latency_watermark_a = 0, latency_watermark_b = 0;
 	u32 tmp, wm_mask, lb_vblank_lead_lines = 0;
 
 	if (amdgpu_crtc->base.enabled && num_heads && mode) {
-		pixel_period = 1000000 / (u32)mode->clock;
-		line_time = min((u32)mode->crtc_htotal * pixel_period, (u32)65535);
+		active_time = 1000000UL * (u32)mode->crtc_hdisplay / (u32)mode->clock;
+		line_time = min((u32) (1000000UL * (u32)mode->crtc_htotal / (u32)mode->clock), (u32)65535);
 
 		/* watermark for high clocks */
 		if (adev->pm.dpm_enabled) {
@@ -1257,7 +1247,7 @@ static void dce_v11_0_program_watermarks
 
 		wm_high.disp_clk = mode->clock;
 		wm_high.src_width = mode->crtc_hdisplay;
-		wm_high.active_time = mode->crtc_hdisplay * pixel_period;
+		wm_high.active_time = active_time;
 		wm_high.blank_time = line_time - wm_high.active_time;
 		wm_high.interlaced = false;
 		if (mode->flags & DRM_MODE_FLAG_INTERLACE)
@@ -1296,7 +1286,7 @@ static void dce_v11_0_program_watermarks
 
 		wm_low.disp_clk = mode->clock;
 		wm_low.src_width = mode->crtc_hdisplay;
-		wm_low.active_time = mode->crtc_hdisplay * pixel_period;
+		wm_low.active_time = active_time;
 		wm_low.blank_time = line_time - wm_low.active_time;
 		wm_low.interlaced = false;
 		if (mode->flags & DRM_MODE_FLAG_INTERLACE)
@@ -3030,6 +3020,7 @@ static int dce_v11_0_sw_fini(void *handl
 
 	dce_v11_0_afmt_fini(adev);
 
+	drm_mode_config_cleanup(adev->ddev);
 	adev->mode_info.mode_config_initialized = false;
 
 	return 0;
@@ -3700,9 +3691,15 @@ static void dce_v11_0_encoder_add(struct
 	default:
 		encoder->possible_crtcs = 0x3;
 		break;
+	case 3:
+		encoder->possible_crtcs = 0x7;
+		break;
 	case 4:
 		encoder->possible_crtcs = 0xf;
 		break;
+	case 5:
+		encoder->possible_crtcs = 0x1f;
+		break;
 	case 6:
 		encoder->possible_crtcs = 0x3f;
 		break;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/dce_v8_0.c linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/dce_v8_0.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/dce_v8_0.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/dce_v8_0.c	2017-12-20 04:05:01.000000000 -0500
@@ -392,15 +392,6 @@ static void dce_v8_0_hpd_init(struct amd
 	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 		struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector);
 
-		if (connector->connector_type == DRM_MODE_CONNECTOR_eDP ||
-		    connector->connector_type == DRM_MODE_CONNECTOR_LVDS) {
-			/* don't try to enable hpd on eDP or LVDS avoid breaking the
-			 * aux dp channel on imac and help (but not completely fix)
-			 * https://bugzilla.redhat.com/show_bug.cgi?id=726143
-			 * also avoid interrupt storms during dpms.
-			 */
-			continue;
-		}
 		switch (amdgpu_connector->hpd.hpd) {
 		case AMDGPU_HPD_1:
 			WREG32(mmDC_HPD1_CONTROL, tmp);
@@ -423,6 +414,45 @@ static void dce_v8_0_hpd_init(struct amd
 		default:
 			break;
 		}
+
+		if (connector->connector_type == DRM_MODE_CONNECTOR_eDP ||
+		    connector->connector_type == DRM_MODE_CONNECTOR_LVDS) {
+			/* don't try to enable hpd on eDP or LVDS avoid breaking the
+			 * aux dp channel on imac and help (but not completely fix)
+			 * https://bugzilla.redhat.com/show_bug.cgi?id=726143
+			 * also avoid interrupt storms during dpms.
+			 */
+			u32 dc_hpd_int_cntl_reg, dc_hpd_int_cntl;
+
+			switch (amdgpu_connector->hpd.hpd) {
+			case AMDGPU_HPD_1:
+				dc_hpd_int_cntl_reg = mmDC_HPD1_INT_CONTROL;
+				break;
+			case AMDGPU_HPD_2:
+				dc_hpd_int_cntl_reg = mmDC_HPD2_INT_CONTROL;
+				break;
+			case AMDGPU_HPD_3:
+				dc_hpd_int_cntl_reg = mmDC_HPD3_INT_CONTROL;
+				break;
+			case AMDGPU_HPD_4:
+				dc_hpd_int_cntl_reg = mmDC_HPD4_INT_CONTROL;
+				break;
+			case AMDGPU_HPD_5:
+				dc_hpd_int_cntl_reg = mmDC_HPD5_INT_CONTROL;
+				break;
+			case AMDGPU_HPD_6:
+				dc_hpd_int_cntl_reg = mmDC_HPD6_INT_CONTROL;
+				break;
+			default:
+				continue;
+			}
+
+			dc_hpd_int_cntl = RREG32(dc_hpd_int_cntl_reg);
+			dc_hpd_int_cntl &= ~DC_HPD1_INT_CONTROL__DC_HPD1_INT_EN_MASK;
+			WREG32(dc_hpd_int_cntl_reg, dc_hpd_int_cntl);
+			continue;
+		}
+
 		dce_v8_0_hpd_set_polarity(adev, amdgpu_connector->hpd.hpd);
 		amdgpu_irq_get(adev, &adev->hpd_irq, amdgpu_connector->hpd.hpd);
 	}
@@ -1066,23 +1096,10 @@ static u32 dce_v8_0_latency_watermark(st
 	a.full = dfixed_const(available_bandwidth);
 	b.full = dfixed_const(wm->num_heads);
 	a.full = dfixed_div(a, b);
+	tmp = div_u64((u64) dmif_size * (u64) wm->disp_clk, mc_latency + 512);
+	tmp = min(dfixed_trunc(a), tmp);
 
-	b.full = dfixed_const(mc_latency + 512);
-	c.full = dfixed_const(wm->disp_clk);
-	b.full = dfixed_div(b, c);
-
-	c.full = dfixed_const(dmif_size);
-	b.full = dfixed_div(c, b);
-
-	tmp = min(dfixed_trunc(a), dfixed_trunc(b));
-
-	b.full = dfixed_const(1000);
-	c.full = dfixed_const(wm->disp_clk);
-	b.full = dfixed_div(c, b);
-	c.full = dfixed_const(wm->bytes_per_pixel);
-	b.full = dfixed_mul(b, c);
-
-	lb_fill_bw = min(tmp, dfixed_trunc(b));
+	lb_fill_bw = min(tmp, wm->disp_clk * wm->bytes_per_pixel / 1000);
 
 	a.full = dfixed_const(max_src_lines_per_dst_line * wm->src_width * wm->bytes_per_pixel);
 	b.full = dfixed_const(1000);
@@ -1190,14 +1207,14 @@ static void dce_v8_0_program_watermarks(
 {
 	struct drm_display_mode *mode = &amdgpu_crtc->base.mode;
 	struct dce8_wm_params wm_low, wm_high;
-	u32 pixel_period;
+	u32 active_time;
 	u32 line_time = 0;
 	u32 latency_watermark_a = 0, latency_watermark_b = 0;
 	u32 tmp, wm_mask, lb_vblank_lead_lines = 0;
 
 	if (amdgpu_crtc->base.enabled && num_heads && mode) {
-		pixel_period = 1000000 / (u32)mode->clock;
-		line_time = min((u32)mode->crtc_htotal * pixel_period, (u32)65535);
+		active_time = 1000000UL * (u32)mode->crtc_hdisplay / (u32)mode->clock;
+		line_time = min((u32) (1000000UL * (u32)mode->crtc_htotal / (u32)mode->clock), (u32)65535);
 
 		/* watermark for high clocks */
 		if (adev->pm.dpm_enabled) {
@@ -1212,7 +1229,7 @@ static void dce_v8_0_program_watermarks(
 
 		wm_high.disp_clk = mode->clock;
 		wm_high.src_width = mode->crtc_hdisplay;
-		wm_high.active_time = mode->crtc_hdisplay * pixel_period;
+		wm_high.active_time = active_time;
 		wm_high.blank_time = line_time - wm_high.active_time;
 		wm_high.interlaced = false;
 		if (mode->flags & DRM_MODE_FLAG_INTERLACE)
@@ -1251,7 +1268,7 @@ static void dce_v8_0_program_watermarks(
 
 		wm_low.disp_clk = mode->clock;
 		wm_low.src_width = mode->crtc_hdisplay;
-		wm_low.active_time = mode->crtc_hdisplay * pixel_period;
+		wm_low.active_time = active_time;
 		wm_low.blank_time = line_time - wm_low.active_time;
 		wm_low.interlaced = false;
 		if (mode->flags & DRM_MODE_FLAG_INTERLACE)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c	2016-01-10 20:56:39.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c	2017-12-20 11:10:21.000000000 -0500
@@ -3599,6 +3599,19 @@ static void gfx_v7_0_ring_emit_vm_flush(
 					unsigned vm_id, uint64_t pd_addr)
 {
 	int usepfp = (ring->type == AMDGPU_RING_TYPE_GFX);
+	uint32_t seq = ring->fence_drv.sync_seq[ring->idx];
+	uint64_t addr = ring->fence_drv.gpu_addr;
+
+	amdgpu_ring_write(ring, PACKET3(PACKET3_WAIT_REG_MEM, 5));
+	amdgpu_ring_write(ring, (WAIT_REG_MEM_MEM_SPACE(1) | /* memory */
+				 WAIT_REG_MEM_FUNCTION(3) | /* equal */
+				 WAIT_REG_MEM_ENGINE(usepfp)));   /* pfp or me */
+	amdgpu_ring_write(ring, addr & 0xfffffffc);
+	amdgpu_ring_write(ring, upper_32_bits(addr) & 0xffffffff);
+	amdgpu_ring_write(ring, seq);
+	amdgpu_ring_write(ring, 0xffffffff);
+	amdgpu_ring_write(ring, 4); /* poll interval */
+
 	if (usepfp) {
 		/* synce CE with ME to prevent CE fetch CEIB before context switch done */
 		amdgpu_ring_write(ring, PACKET3(PACKET3_SWITCH_BUFFER, 0));
@@ -5421,7 +5434,7 @@ static int gfx_v7_0_eop_irq(struct amdgp
 	case 2:
 		for (i = 0; i < adev->gfx.num_compute_rings; i++) {
 			ring = &adev->gfx.compute_ring[i];
-			if ((ring->me == me_id) & (ring->pipe == pipe_id))
+			if ((ring->me == me_id) && (ring->pipe == pipe_id))
 				amdgpu_fence_process(ring);
 		}
 		break;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c	2016-01-10 20:56:07.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c	2017-12-20 11:09:11.000000000 -0500
@@ -775,7 +775,8 @@ static int gfx_v8_0_init_microcode(struc
 	adev->gfx.mec_fw_version = le32_to_cpu(cp_hdr->header.ucode_version);
 	adev->gfx.mec_feature_version = le32_to_cpu(cp_hdr->ucode_feature_version);
 
-	if (adev->asic_type != CHIP_STONEY) {
+	if ((adev->asic_type != CHIP_STONEY) &&
+	    (adev->asic_type != CHIP_TOPAZ)) {
 		snprintf(fw_name, sizeof(fw_name), "/*(DEBLOBBED)*/", chip_name);
 		err = reject_firmware(&adev->gfx.mec2_fw, fw_name, adev->dev);
 		if (!err) {
@@ -4649,7 +4650,8 @@ static void gfx_v8_0_ring_emit_vm_flush(
 
 	amdgpu_ring_write(ring, PACKET3(PACKET3_WAIT_REG_MEM, 5));
 	amdgpu_ring_write(ring, (WAIT_REG_MEM_MEM_SPACE(1) | /* memory */
-		 WAIT_REG_MEM_FUNCTION(3))); /* equal */
+				 WAIT_REG_MEM_FUNCTION(3) | /* equal */
+				 WAIT_REG_MEM_ENGINE(usepfp))); /* pfp or me */
 	amdgpu_ring_write(ring, addr & 0xfffffffc);
 	amdgpu_ring_write(ring, upper_32_bits(addr) & 0xffffffff);
 	amdgpu_ring_write(ring, seq);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c	2016-01-10 20:56:42.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c	2017-12-20 11:10:27.000000000 -0500
@@ -42,8 +42,37 @@ static void gmc_v7_0_set_irq_funcs(struc
 
 /*(DEBLOBBED)*/
 
+static const u32 golden_settings_iceland_a11[] =
+{
+	mmVM_PRT_APERTURE0_LOW_ADDR, 0x0fffffff, 0x0fffffff,
+	mmVM_PRT_APERTURE1_LOW_ADDR, 0x0fffffff, 0x0fffffff,
+	mmVM_PRT_APERTURE2_LOW_ADDR, 0x0fffffff, 0x0fffffff,
+	mmVM_PRT_APERTURE3_LOW_ADDR, 0x0fffffff, 0x0fffffff
+};
+
+static const u32 iceland_mgcg_cgcg_init[] =
+{
+	mmMC_MEM_POWER_LS, 0xffffffff, 0x00000104
+};
+
+static void gmc_v7_0_init_golden_registers(struct amdgpu_device *adev)
+{
+	switch (adev->asic_type) {
+	case CHIP_TOPAZ:
+		amdgpu_program_register_sequence(adev,
+						 iceland_mgcg_cgcg_init,
+						 (const u32)ARRAY_SIZE(iceland_mgcg_cgcg_init));
+		amdgpu_program_register_sequence(adev,
+						 golden_settings_iceland_a11,
+						 (const u32)ARRAY_SIZE(golden_settings_iceland_a11));
+		break;
+	default:
+		break;
+	}
+}
+
 /**
- * gmc8_mc_wait_for_idle - wait for MC idle callback.
+ * gmc7_mc_wait_for_idle - wait for MC idle callback.
  *
  * @adev: amdgpu_device pointer
  *
@@ -131,13 +160,21 @@ static int gmc_v7_0_init_microcode(struc
 	case CHIP_HAWAII:
 		chip_name = "hawaii";
 		break;
+	case CHIP_TOPAZ:
+		chip_name = "topaz";
+		break;
 	case CHIP_KAVERI:
 	case CHIP_KABINI:
+	case CHIP_MULLINS:
 		return 0;
 	default: BUG();
 	}
 
-	snprintf(fw_name, sizeof(fw_name), "/*(DEBLOBBED)*/", chip_name);
+	if (adev->asic_type == CHIP_TOPAZ)
+		snprintf(fw_name, sizeof(fw_name), "/*(DEBLOBBED)*/", chip_name);
+	else
+		snprintf(fw_name, sizeof(fw_name), "/*(DEBLOBBED)*/", chip_name);
+
 	err = reject_firmware(&adev->mc.fw, fw_name, adev->dev);
 	if (err)
 		goto out;
@@ -860,14 +897,6 @@ static int gmc_v7_0_early_init(void *han
 	gmc_v7_0_set_gart_funcs(adev);
 	gmc_v7_0_set_irq_funcs(adev);
 
-	if (adev->flags & AMD_IS_APU) {
-		adev->mc.vram_type = AMDGPU_VRAM_TYPE_UNKNOWN;
-	} else {
-		u32 tmp = RREG32(mmMC_SEQ_MISC0);
-		tmp &= MC_SEQ_MISC0__MT__MASK;
-		adev->mc.vram_type = gmc_v7_0_convert_vram_type(tmp);
-	}
-
 	return 0;
 }
 
@@ -888,6 +917,14 @@ static int gmc_v7_0_sw_init(void *handle
 	if (r)
 		return r;
 
+	if (adev->flags & AMD_IS_APU) {
+		adev->mc.vram_type = AMDGPU_VRAM_TYPE_UNKNOWN;
+	} else {
+		u32 tmp = RREG32(mmMC_SEQ_MISC0);
+		tmp &= MC_SEQ_MISC0__MT__MASK;
+		adev->mc.vram_type = gmc_v7_0_convert_vram_type(tmp);
+	}
+
 	r = amdgpu_irq_add_id(adev, 146, &adev->mc.vm_fault);
 	if (r)
 		return r;
@@ -979,6 +1016,8 @@ static int gmc_v7_0_hw_init(void *handle
 	int r;
 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 
+	gmc_v7_0_init_golden_registers(adev);
+
 	gmc_v7_0_mc_program(adev);
 
 	if (!(adev->flags & AMD_IS_APU)) {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c	2016-01-10 20:56:10.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c	2017-12-20 11:09:22.000000000 -0500
@@ -73,19 +73,6 @@ static const u32 fiji_mgcg_cgcg_init[] =
 	mmMC_MEM_POWER_LS, 0xffffffff, 0x00000104
 };
 
-static const u32 golden_settings_iceland_a11[] =
-{
-	mmVM_PRT_APERTURE0_LOW_ADDR, 0x0fffffff, 0x0fffffff,
-	mmVM_PRT_APERTURE1_LOW_ADDR, 0x0fffffff, 0x0fffffff,
-	mmVM_PRT_APERTURE2_LOW_ADDR, 0x0fffffff, 0x0fffffff,
-	mmVM_PRT_APERTURE3_LOW_ADDR, 0x0fffffff, 0x0fffffff
-};
-
-static const u32 iceland_mgcg_cgcg_init[] =
-{
-	mmMC_MEM_POWER_LS, 0xffffffff, 0x00000104
-};
-
 static const u32 cz_mgcg_cgcg_init[] =
 {
 	mmMC_MEM_POWER_LS, 0xffffffff, 0x00000104
@@ -100,14 +87,6 @@ static const u32 stoney_mgcg_cgcg_init[]
 static void gmc_v8_0_init_golden_registers(struct amdgpu_device *adev)
 {
 	switch (adev->asic_type) {
-	case CHIP_TOPAZ:
-		amdgpu_program_register_sequence(adev,
-						 iceland_mgcg_cgcg_init,
-						 (const u32)ARRAY_SIZE(iceland_mgcg_cgcg_init));
-		amdgpu_program_register_sequence(adev,
-						 golden_settings_iceland_a11,
-						 (const u32)ARRAY_SIZE(golden_settings_iceland_a11));
-		break;
 	case CHIP_FIJI:
 		amdgpu_program_register_sequence(adev,
 						 fiji_mgcg_cgcg_init,
@@ -227,15 +206,10 @@ static int gmc_v8_0_init_microcode(struc
 	DRM_DEBUG("\n");
 
 	switch (adev->asic_type) {
-	case CHIP_TOPAZ:
-		chip_name = "topaz";
-		break;
 	case CHIP_TONGA:
 		chip_name = "tonga";
 		break;
 	case CHIP_FIJI:
-		chip_name = "fiji";
-		break;
 	case CHIP_CARRIZO:
 	case CHIP_STONEY:
 		return 0;
@@ -878,14 +852,6 @@ static int gmc_v8_0_early_init(void *han
 	gmc_v8_0_set_gart_funcs(adev);
 	gmc_v8_0_set_irq_funcs(adev);
 
-	if (adev->flags & AMD_IS_APU) {
-		adev->mc.vram_type = AMDGPU_VRAM_TYPE_UNKNOWN;
-	} else {
-		u32 tmp = RREG32(mmMC_SEQ_MISC0);
-		tmp &= MC_SEQ_MISC0__MT__MASK;
-		adev->mc.vram_type = gmc_v8_0_convert_vram_type(tmp);
-	}
-
 	return 0;
 }
 
@@ -896,6 +862,8 @@ static int gmc_v8_0_late_init(void *hand
 	return amdgpu_irq_get(adev, &adev->mc.vm_fault, 0);
 }
 
+#define mmMC_SEQ_MISC0_FIJI 0xA71
+
 static int gmc_v8_0_sw_init(void *handle)
 {
 	int r;
@@ -906,6 +874,19 @@ static int gmc_v8_0_sw_init(void *handle
 	if (r)
 		return r;
 
+	if (adev->flags & AMD_IS_APU) {
+		adev->mc.vram_type = AMDGPU_VRAM_TYPE_UNKNOWN;
+	} else {
+		u32 tmp;
+
+		if (adev->asic_type == CHIP_FIJI)
+			tmp = RREG32(mmMC_SEQ_MISC0_FIJI);
+		else
+			tmp = RREG32(mmMC_SEQ_MISC0);
+		tmp &= MC_SEQ_MISC0__MT__MASK;
+		adev->mc.vram_type = gmc_v8_0_convert_vram_type(tmp);
+	}
+
 	r = amdgpu_irq_add_id(adev, 146, &adev->mc.vm_fault);
 	if (r)
 		return r;
@@ -1001,7 +982,7 @@ static int gmc_v8_0_hw_init(void *handle
 
 	gmc_v8_0_mc_program(adev);
 
-	if (!(adev->flags & AMD_IS_APU)) {
+	if (adev->asic_type == CHIP_TONGA) {
 		r = gmc_v8_0_mc_load_microcode(adev);
 		if (r) {
 			DRM_ERROR("Failed to load MC firmware!\n");
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/iceland_smc.c linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/iceland_smc.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/iceland_smc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/iceland_smc.c	2017-12-20 04:05:01.000000000 -0500
@@ -432,7 +432,7 @@ static uint32_t iceland_smu_get_mask_for
 		case AMDGPU_UCODE_ID_CP_ME:
 			return UCODE_ID_CP_ME_MASK;
 		case AMDGPU_UCODE_ID_CP_MEC1:
-			return UCODE_ID_CP_MEC_MASK | UCODE_ID_CP_MEC_JT1_MASK | UCODE_ID_CP_MEC_JT2_MASK;
+			return UCODE_ID_CP_MEC_MASK | UCODE_ID_CP_MEC_JT1_MASK;
 		case AMDGPU_UCODE_ID_CP_MEC2:
 			return UCODE_ID_CP_MEC_MASK;
 		case AMDGPU_UCODE_ID_RLC_G:
@@ -522,12 +522,6 @@ static int iceland_smu_request_load_fw(s
 		return -EINVAL;
 	}
 
-	if (iceland_smu_populate_single_firmware_entry(adev, UCODE_ID_CP_MEC_JT2,
-			&toc->entry[toc->num_entries++])) {
-		DRM_ERROR("Failed to get firmware entry for MEC_JT2\n");
-		return -EINVAL;
-	}
-
 	if (iceland_smu_populate_single_firmware_entry(adev, UCODE_ID_SDMA0,
 			&toc->entry[toc->num_entries++])) {
 		DRM_ERROR("Failed to get firmware entry for SDMA0\n");
@@ -550,8 +544,8 @@ static int iceland_smu_request_load_fw(s
 			UCODE_ID_CP_ME_MASK |
 			UCODE_ID_CP_PFP_MASK |
 			UCODE_ID_CP_MEC_MASK |
-			UCODE_ID_CP_MEC_JT1_MASK |
-			UCODE_ID_CP_MEC_JT2_MASK;
+			UCODE_ID_CP_MEC_JT1_MASK;
+
 
 	if (iceland_send_msg_to_smc_with_parameter_without_waiting(adev, PPSMC_MSG_LoadUcodes, fw_to_load)) {
 		DRM_ERROR("Fail to request SMU load ucode\n");
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/kv_dpm.c linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/kv_dpm.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/kv_dpm.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/kv_dpm.c	2017-12-20 04:05:01.000000000 -0500
@@ -2258,7 +2258,7 @@ static void kv_apply_state_adjust_rules(
 	if (pi->caps_stable_p_state) {
 		stable_p_state_sclk = (max_limits->sclk * 75) / 100;
 
-		for (i = table->count - 1; i >= 0; i++) {
+		for (i = table->count - 1; i >= 0; i--) {
 			if (stable_p_state_sclk >= table->entries[i].clk) {
 				stable_p_state_sclk = table->entries[i].clk;
 				break;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/Makefile linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/Makefile
--- linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/Makefile	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/Makefile	2017-12-20 04:05:01.000000000 -0500
@@ -22,7 +22,7 @@ amdgpu-y += amdgpu_device.o amdgpu_kms.o
 	amdgpu_ucode.o amdgpu_bo_list.o amdgpu_ctx.o amdgpu_sync.o
 
 # add asic specific block
-amdgpu-$(CONFIG_DRM_AMDGPU_CIK)+= cik.o gmc_v7_0.o cik_ih.o kv_smc.o kv_dpm.o \
+amdgpu-$(CONFIG_DRM_AMDGPU_CIK)+= cik.o cik_ih.o kv_smc.o kv_dpm.o \
 	ci_smc.o ci_dpm.o dce_v8_0.o gfx_v7_0.o cik_sdma.o uvd_v4_2.o vce_v2_0.o \
 	amdgpu_amdkfd_gfx_v7.o
 
@@ -31,6 +31,7 @@ amdgpu-y += \
 
 # add GMC block
 amdgpu-y += \
+	gmc_v7_0.o \
 	gmc_v8_0.o
 
 # add IH block
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/sdma_v2_4.c linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/sdma_v2_4.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/sdma_v2_4.c	2016-01-10 20:56:15.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/sdma_v2_4.c	2017-12-20 11:09:33.000000000 -0500
@@ -32,8 +32,8 @@
 #include "oss/oss_2_4_d.h"
 #include "oss/oss_2_4_sh_mask.h"
 
-#include "gmc/gmc_8_1_d.h"
-#include "gmc/gmc_8_1_sh_mask.h"
+#include "gmc/gmc_7_1_d.h"
+#include "gmc/gmc_7_1_sh_mask.h"
 
 #include "gca/gfx_8_0_d.h"
 #include "gca/gfx_8_0_enum.h"
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/tonga_dpm.c linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/tonga_dpm.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/tonga_dpm.c	2016-01-10 20:56:25.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/tonga_dpm.c	2017-12-20 11:09:54.000000000 -0500
@@ -122,25 +122,12 @@ static int tonga_dpm_hw_fini(void *handl
 
 static int tonga_dpm_suspend(void *handle)
 {
-	return 0;
+	return tonga_dpm_hw_fini(handle);
 }
 
 static int tonga_dpm_resume(void *handle)
 {
-	int ret;
-	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
-
-	mutex_lock(&adev->pm.mutex);
-
-	ret = tonga_smu_start(adev);
-	if (ret) {
-		DRM_ERROR("SMU start failed\n");
-		goto fail;
-	}
-
-fail:
-	mutex_unlock(&adev->pm.mutex);
-	return ret;
+	return tonga_dpm_hw_init(handle);
 }
 
 static int tonga_dpm_set_clockgating_state(void *handle,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/vi.c linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/vi.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdgpu/vi.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdgpu/vi.c	2017-12-20 04:05:01.000000000 -0500
@@ -60,6 +60,7 @@
 #include "vi.h"
 #include "vi_dpm.h"
 #include "gmc_v8_0.h"
+#include "gmc_v7_0.h"
 #include "gfx_v8_0.h"
 #include "sdma_v2_4.h"
 #include "sdma_v3_0.h"
@@ -1081,10 +1082,10 @@ static const struct amdgpu_ip_block_vers
 	},
 	{
 		.type = AMD_IP_BLOCK_TYPE_GMC,
-		.major = 8,
-		.minor = 0,
+		.major = 7,
+		.minor = 4,
 		.rev = 0,
-		.funcs = &gmc_v8_0_ip_funcs,
+		.funcs = &gmc_v7_0_ip_funcs,
 	},
 	{
 		.type = AMD_IP_BLOCK_TYPE_IH,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdkfd/kfd_dbgdev.c linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdkfd/kfd_dbgdev.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdkfd/kfd_dbgdev.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdkfd/kfd_dbgdev.c	2017-12-20 04:05:01.000000000 -0500
@@ -513,7 +513,7 @@ static int dbgdev_wave_control_set_regis
 				union SQ_CMD_BITS *in_reg_sq_cmd,
 				union GRBM_GFX_INDEX_BITS *in_reg_gfx_index)
 {
-	int status;
+	int status = 0;
 	union SQ_CMD_BITS reg_sq_cmd;
 	union GRBM_GFX_INDEX_BITS reg_gfx_index;
 	struct HsaDbgWaveMsgAMDGen2 *pMsg;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdkfd/kfd_events.c linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdkfd/kfd_events.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdkfd/kfd_events.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdkfd/kfd_events.c	2017-12-20 04:05:01.000000000 -0500
@@ -739,8 +739,10 @@ int kfd_wait_on_events(struct kfd_proces
 		struct kfd_event_data event_data;
 
 		if (copy_from_user(&event_data, &events[i],
-				sizeof(struct kfd_event_data)))
+				sizeof(struct kfd_event_data))) {
+			ret = -EFAULT;
 			goto fail;
+		}
 
 		ret = init_event_waiter(p, &event_waiters[i],
 				event_data.event_id, i);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdkfd/kfd_process.c linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdkfd/kfd_process.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/amd/amdkfd/kfd_process.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/amd/amdkfd/kfd_process.c	2017-12-20 04:05:01.000000000 -0500
@@ -242,13 +242,19 @@ static void kfd_process_notifier_release
 	pqm_uninit(&p->pqm);
 
 	/* Iterate over all process device data structure and check
-	 * if we should reset all wavefronts */
-	list_for_each_entry(pdd, &p->per_device_data, per_device_list)
+	 * if we should delete debug managers and reset all wavefronts
+	 */
+	list_for_each_entry(pdd, &p->per_device_data, per_device_list) {
+		if ((pdd->dev->dbgmgr) &&
+				(pdd->dev->dbgmgr->pasid == p->pasid))
+			kfd_dbgmgr_destroy(pdd->dev->dbgmgr);
+
 		if (pdd->reset_wavefronts) {
 			pr_warn("amdkfd: Resetting all wave fronts\n");
 			dbgdev_wave_reset_wavefronts(pdd->dev, p);
 			pdd->reset_wavefronts = false;
 		}
+	}
 
 	mutex_unlock(&p->mutex);
 
@@ -404,42 +410,52 @@ void kfd_unbind_process_from_device(stru
 
 	idx = srcu_read_lock(&kfd_processes_srcu);
 
+	/*
+	 * Look for the process that matches the pasid. If there is no such
+	 * process, we either released it in amdkfd's own notifier, or there
+	 * is a bug. Unfortunately, there is no way to tell...
+	 */
 	hash_for_each_rcu(kfd_processes_table, i, p, kfd_processes)
-		if (p->pasid == pasid)
-			break;
+		if (p->pasid == pasid) {
 
-	srcu_read_unlock(&kfd_processes_srcu, idx);
+			srcu_read_unlock(&kfd_processes_srcu, idx);
 
-	BUG_ON(p->pasid != pasid);
+			pr_debug("Unbinding process %d from IOMMU\n", pasid);
 
-	mutex_lock(&p->mutex);
+			mutex_lock(&p->mutex);
 
-	if ((dev->dbgmgr) && (dev->dbgmgr->pasid == p->pasid))
-		kfd_dbgmgr_destroy(dev->dbgmgr);
+			if ((dev->dbgmgr) && (dev->dbgmgr->pasid == p->pasid))
+				kfd_dbgmgr_destroy(dev->dbgmgr);
 
-	pqm_uninit(&p->pqm);
+			pqm_uninit(&p->pqm);
 
-	pdd = kfd_get_process_device_data(dev, p);
+			pdd = kfd_get_process_device_data(dev, p);
 
-	if (!pdd) {
-		mutex_unlock(&p->mutex);
-		return;
-	}
+			if (!pdd) {
+				mutex_unlock(&p->mutex);
+				return;
+			}
 
-	if (pdd->reset_wavefronts) {
-		dbgdev_wave_reset_wavefronts(pdd->dev, p);
-		pdd->reset_wavefronts = false;
-	}
+			if (pdd->reset_wavefronts) {
+				dbgdev_wave_reset_wavefronts(pdd->dev, p);
+				pdd->reset_wavefronts = false;
+			}
 
-	/*
-	 * Just mark pdd as unbound, because we still need it to call
-	 * amd_iommu_unbind_pasid() in when the process exits.
-	 * We don't call amd_iommu_unbind_pasid() here
-	 * because the IOMMU called us.
-	 */
-	pdd->bound = false;
+			/*
+			 * Just mark pdd as unbound, because we still need it
+			 * to call amd_iommu_unbind_pasid() in when the
+			 * process exits.
+			 * We don't call amd_iommu_unbind_pasid() here
+			 * because the IOMMU called us.
+			 */
+			pdd->bound = false;
 
-	mutex_unlock(&p->mutex);
+			mutex_unlock(&p->mutex);
+
+			return;
+		}
+
+	srcu_read_unlock(&kfd_processes_srcu, idx);
 }
 
 struct kfd_process_device *kfd_get_first_process_device_data(struct kfd_process *p)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/ast/ast_drv.h linux-libre-4.4.107-gnu/drivers/gpu/drm/ast/ast_drv.h
--- linux-libre-4.4-gnu/drivers/gpu/drm/ast/ast_drv.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/ast/ast_drv.h	2017-12-20 04:05:01.000000000 -0500
@@ -113,6 +113,11 @@ struct ast_private {
 	struct ttm_bo_kmap_obj cache_kmap;
 	int next_cursor;
 	bool support_wide_screen;
+	enum {
+		ast_use_p2a,
+		ast_use_dt,
+		ast_use_defaults
+	} config_mode;
 
 	enum ast_tx_chip tx_chip_type;
 	u8 dp501_maxclk;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/ast/ast_main.c linux-libre-4.4.107-gnu/drivers/gpu/drm/ast/ast_main.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/ast/ast_main.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/ast/ast_main.c	2017-12-20 04:05:01.000000000 -0500
@@ -62,13 +62,84 @@ uint8_t ast_get_index_reg_mask(struct as
 	return ret;
 }
 
+static void ast_detect_config_mode(struct drm_device *dev, u32 *scu_rev)
+{
+	struct device_node *np = dev->pdev->dev.of_node;
+	struct ast_private *ast = dev->dev_private;
+	uint32_t data, jregd0, jregd1;
+
+	/* Defaults */
+	ast->config_mode = ast_use_defaults;
+	*scu_rev = 0xffffffff;
+
+	/* Check if we have device-tree properties */
+	if (np && !of_property_read_u32(np, "aspeed,scu-revision-id",
+					scu_rev)) {
+		/* We do, disable P2A access */
+		ast->config_mode = ast_use_dt;
+		DRM_INFO("Using device-tree for configuration\n");
+		return;
+	}
+
+	/* Not all families have a P2A bridge */
+	if (dev->pdev->device != PCI_CHIP_AST2000)
+		return;
+
+	/*
+	 * The BMC will set SCU 0x40 D[12] to 1 if the P2 bridge
+	 * is disabled. We force using P2A if VGA only mode bit
+	 * is set D[7]
+	 */
+	jregd0 = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xd0, 0xff);
+	jregd1 = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xd1, 0xff);
+	if (!(jregd0 & 0x80) || !(jregd1 & 0x10)) {
+		/* Double check it's actually working */
+		data = ast_read32(ast, 0xf004);
+		if (data != 0xFFFFFFFF) {
+			/* P2A works, grab silicon revision */
+			ast->config_mode = ast_use_p2a;
+
+			DRM_INFO("Using P2A bridge for configuration\n");
+
+			/* Read SCU7c (silicon revision register) */
+			ast_write32(ast, 0xf004, 0x1e6e0000);
+			ast_write32(ast, 0xf000, 0x1);
+			*scu_rev = ast_read32(ast, 0x1207c);
+			return;
+		}
+	}
+
+	/* We have a P2A bridge but it's disabled */
+	DRM_INFO("P2A bridge disabled, using default configuration\n");
+}
 
 static int ast_detect_chip(struct drm_device *dev, bool *need_post)
 {
 	struct ast_private *ast = dev->dev_private;
-	uint32_t data, jreg;
+	uint32_t jreg, scu_rev;
+
+	/*
+	 * If VGA isn't enabled, we need to enable now or subsequent
+	 * access to the scratch registers will fail. We also inform
+	 * our caller that it needs to POST the chip
+	 * (Assumption: VGA not enabled -> need to POST)
+	 */
+	if (!ast_is_vga_enabled(dev)) {
+		ast_enable_vga(dev);
+		DRM_INFO("VGA not enabled on entry, requesting chip POST\n");
+		*need_post = true;
+	} else
+		*need_post = false;
+
+
+	/* Enable extended register access */
+	ast_enable_mmio(dev);
 	ast_open_key(ast);
 
+	/* Find out whether P2A works or whether to use device-tree */
+	ast_detect_config_mode(dev, &scu_rev);
+
+	/* Identify chipset */
 	if (dev->pdev->device == PCI_CHIP_AST1180) {
 		ast->chip = AST1100;
 		DRM_INFO("AST 1180 detected\n");
@@ -80,12 +151,7 @@ static int ast_detect_chip(struct drm_de
 			ast->chip = AST2300;
 			DRM_INFO("AST 2300 detected\n");
 		} else if (dev->pdev->revision >= 0x10) {
-			uint32_t data;
-			ast_write32(ast, 0xf004, 0x1e6e0000);
-			ast_write32(ast, 0xf000, 0x1);
-
-			data = ast_read32(ast, 0x1207c);
-			switch (data & 0x0300) {
+			switch (scu_rev & 0x0300) {
 			case 0x0200:
 				ast->chip = AST1100;
 				DRM_INFO("AST 1100 detected\n");
@@ -110,20 +176,6 @@ static int ast_detect_chip(struct drm_de
 		}
 	}
 
-	/*
-	 * If VGA isn't enabled, we need to enable now or subsequent
-	 * access to the scratch registers will fail. We also inform
-	 * our caller that it needs to POST the chip
-	 * (Assumption: VGA not enabled -> need to POST)
-	 */
-	if (!ast_is_vga_enabled(dev)) {
-		ast_enable_vga(dev);
-		ast_enable_mmio(dev);
-		DRM_INFO("VGA not enabled on entry, requesting chip POST\n");
-		*need_post = true;
-	} else
-		*need_post = false;
-
 	/* Check if we support wide screen */
 	switch (ast->chip) {
 	case AST1180:
@@ -140,14 +192,11 @@ static int ast_detect_chip(struct drm_de
 			ast->support_wide_screen = true;
 		else {
 			ast->support_wide_screen = false;
-			/* Read SCU7c (silicon revision register) */
-			ast_write32(ast, 0xf004, 0x1e6e0000);
-			ast_write32(ast, 0xf000, 0x1);
-			data = ast_read32(ast, 0x1207c);
-			data &= 0x300;
-			if (ast->chip == AST2300 && data == 0x0) /* ast1300 */
+			if (ast->chip == AST2300 &&
+			    (scu_rev & 0x300) == 0x0) /* ast1300 */
 				ast->support_wide_screen = true;
-			if (ast->chip == AST2400 && data == 0x100) /* ast1400 */
+			if (ast->chip == AST2400 &&
+			    (scu_rev & 0x300) == 0x100) /* ast1400 */
 				ast->support_wide_screen = true;
 		}
 		break;
@@ -212,28 +261,49 @@ static int ast_detect_chip(struct drm_de
 
 static int ast_get_dram_info(struct drm_device *dev)
 {
+	struct device_node *np = dev->pdev->dev.of_node;
 	struct ast_private *ast = dev->dev_private;
-	uint32_t data, data2;
-	uint32_t denum, num, div, ref_pll;
-
-	ast_write32(ast, 0xf004, 0x1e6e0000);
-	ast_write32(ast, 0xf000, 0x1);
-
-
-	ast_write32(ast, 0x10000, 0xfc600309);
+	uint32_t mcr_cfg, mcr_scu_mpll, mcr_scu_strap;
+	uint32_t denum, num, div, ref_pll, dsel;
 
-	do {
-		;
-	} while (ast_read32(ast, 0x10000) != 0x01);
-	data = ast_read32(ast, 0x10004);
+	switch (ast->config_mode) {
+	case ast_use_dt:
+		/*
+		 * If some properties are missing, use reasonable
+		 * defaults for AST2400
+		 */
+		if (of_property_read_u32(np, "aspeed,mcr-configuration",
+					 &mcr_cfg))
+			mcr_cfg = 0x00000577;
+		if (of_property_read_u32(np, "aspeed,mcr-scu-mpll",
+					 &mcr_scu_mpll))
+			mcr_scu_mpll = 0x000050C0;
+		if (of_property_read_u32(np, "aspeed,mcr-scu-strap",
+					 &mcr_scu_strap))
+			mcr_scu_strap = 0;
+		break;
+	case ast_use_p2a:
+		ast_write32(ast, 0xf004, 0x1e6e0000);
+		ast_write32(ast, 0xf000, 0x1);
+		mcr_cfg = ast_read32(ast, 0x10004);
+		mcr_scu_mpll = ast_read32(ast, 0x10120);
+		mcr_scu_strap = ast_read32(ast, 0x10170);
+		break;
+	case ast_use_defaults:
+	default:
+		ast->dram_bus_width = 16;
+		ast->dram_type = AST_DRAM_1Gx16;
+		ast->mclk = 396;
+		return 0;
+	}
 
-	if (data & 0x400)
+	if (mcr_cfg & 0x40)
 		ast->dram_bus_width = 16;
 	else
 		ast->dram_bus_width = 32;
 
 	if (ast->chip == AST2300 || ast->chip == AST2400) {
-		switch (data & 0x03) {
+		switch (mcr_cfg & 0x03) {
 		case 0:
 			ast->dram_type = AST_DRAM_512Mx16;
 			break;
@@ -249,13 +319,13 @@ static int ast_get_dram_info(struct drm_
 			break;
 		}
 	} else {
-		switch (data & 0x0c) {
+		switch (mcr_cfg & 0x0c) {
 		case 0:
 		case 4:
 			ast->dram_type = AST_DRAM_512Mx16;
 			break;
 		case 8:
-			if (data & 0x40)
+			if (mcr_cfg & 0x40)
 				ast->dram_type = AST_DRAM_1Gx16;
 			else
 				ast->dram_type = AST_DRAM_512Mx32;
@@ -266,17 +336,15 @@ static int ast_get_dram_info(struct drm_
 		}
 	}
 
-	data = ast_read32(ast, 0x10120);
-	data2 = ast_read32(ast, 0x10170);
-	if (data2 & 0x2000)
+	if (mcr_scu_strap & 0x2000)
 		ref_pll = 14318;
 	else
 		ref_pll = 12000;
 
-	denum = data & 0x1f;
-	num = (data & 0x3fe0) >> 5;
-	data = (data & 0xc000) >> 14;
-	switch (data) {
+	denum = mcr_scu_mpll & 0x1f;
+	num = (mcr_scu_mpll & 0x3fe0) >> 5;
+	dsel = (mcr_scu_mpll & 0xc000) >> 14;
+	switch (dsel) {
 	case 3:
 		div = 0x4;
 		break;
@@ -429,7 +497,9 @@ int ast_driver_load(struct drm_device *d
 	ast_detect_chip(dev, &need_post);
 
 	if (ast->chip != AST1180) {
-		ast_get_dram_info(dev);
+		ret = ast_get_dram_info(dev);
+		if (ret)
+			goto out_free;
 		ast->vram_size = ast_get_vram_info(dev);
 		DRM_INFO("dram %d %d %d %08x\n", ast->mclk, ast->dram_type, ast->dram_bus_width, ast->vram_size);
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/ast/ast_post.c linux-libre-4.4.107-gnu/drivers/gpu/drm/ast/ast_post.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/ast/ast_post.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/ast/ast_post.c	2017-12-20 04:05:01.000000000 -0500
@@ -58,13 +58,9 @@ bool ast_is_vga_enabled(struct drm_devic
 		/* TODO 1180 */
 	} else {
 		ch = ast_io_read8(ast, AST_IO_VGA_ENABLE_PORT);
-		if (ch) {
-			ast_open_key(ast);
-			ch = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xb6, 0xff);
-			return ch & 0x04;
-		}
+		return !!(ch & 0x01);
 	}
-	return 0;
+	return false;
 }
 
 static const u8 extreginfo[] = { 0x0f, 0x04, 0x1c, 0xff };
@@ -375,16 +371,21 @@ void ast_post_gpu(struct drm_device *dev
 	pci_write_config_dword(ast->dev->pdev, 0x04, reg);
 
 	ast_enable_vga(dev);
-	ast_enable_mmio(dev);
 	ast_open_key(ast);
+	ast_enable_mmio(dev);
 	ast_set_def_ext_reg(dev);
 
-	if (ast->chip == AST2300 || ast->chip == AST2400)
-		ast_init_dram_2300(dev);
-	else
-		ast_init_dram_reg(dev);
+	if (ast->config_mode == ast_use_p2a) {
+		if (ast->chip == AST2300 || ast->chip == AST2400)
+			ast_init_dram_2300(dev);
+		else
+			ast_init_dram_reg(dev);
 
-	ast_init_3rdtx(dev);
+		ast_init_3rdtx(dev);
+	} else {
+		if (ast->tx_chip_type != AST_TX_NONE)
+			ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xa3, 0xcf, 0x80);	/* Enable DVO */
+	}
 }
 
 /* AST 2300 DRAM settings */
@@ -1630,12 +1631,44 @@ static void ast_init_dram_2300(struct dr
 		temp |= 0x73;
 		ast_write32(ast, 0x12008, temp);
 
+		param.dram_freq = 396;
 		param.dram_type = AST_DDR3;
+		temp = ast_mindwm(ast, 0x1e6e2070);
 		if (temp & 0x01000000)
 			param.dram_type = AST_DDR2;
-		param.dram_chipid = ast->dram_type;
-		param.dram_freq = ast->mclk;
-		param.vram_size = ast->vram_size;
+                switch (temp & 0x18000000) {
+		case 0:
+			param.dram_chipid = AST_DRAM_512Mx16;
+			break;
+		default:
+		case 0x08000000:
+			param.dram_chipid = AST_DRAM_1Gx16;
+			break;
+		case 0x10000000:
+			param.dram_chipid = AST_DRAM_2Gx16;
+			break;
+		case 0x18000000:
+			param.dram_chipid = AST_DRAM_4Gx16;
+			break;
+		}
+                switch (temp & 0x0c) {
+                default:
+		case 0x00:
+			param.vram_size = AST_VIDMEM_SIZE_8M;
+			break;
+
+		case 0x04:
+			param.vram_size = AST_VIDMEM_SIZE_16M;
+			break;
+
+		case 0x08:
+			param.vram_size = AST_VIDMEM_SIZE_32M;
+			break;
+
+		case 0x0c:
+			param.vram_size = AST_VIDMEM_SIZE_64M;
+			break;
+		}
 
 		if (param.dram_type == AST_DDR3) {
 			get_ddr3_info(ast, &param);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c linux-libre-4.4.107-gnu/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c	2017-12-20 04:05:01.000000000 -0500
@@ -316,25 +316,27 @@ atmel_hlcdc_plane_update_pos_and_size(st
 			u32 *coeff_tab = heo_upscaling_ycoef;
 			u32 max_memsize;
 
-			if (state->crtc_w < state->src_w)
+			if (state->crtc_h < state->src_h)
 				coeff_tab = heo_downscaling_ycoef;
 			for (i = 0; i < ARRAY_SIZE(heo_upscaling_ycoef); i++)
 				atmel_hlcdc_layer_update_cfg(&plane->layer,
 							     33 + i,
 							     0xffffffff,
 							     coeff_tab[i]);
-			factor = ((8 * 256 * state->src_w) - (256 * 4)) /
-				 state->crtc_w;
+			factor = ((8 * 256 * state->src_h) - (256 * 4)) /
+				 state->crtc_h;
 			factor++;
-			max_memsize = ((factor * state->crtc_w) + (256 * 4)) /
+			max_memsize = ((factor * state->crtc_h) + (256 * 4)) /
 				      2048;
-			if (max_memsize > state->src_w)
+			if (max_memsize > state->src_h)
 				factor--;
 			factor_reg |= (factor << 16) | 0x80000000;
 		}
 
 		atmel_hlcdc_layer_update_cfg(&plane->layer, 13, 0xffffffff,
 					     factor_reg);
+	} else {
+		atmel_hlcdc_layer_update_cfg(&plane->layer, 13, 0xffffffff, 0);
 	}
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/drm_atomic.c linux-libre-4.4.107-gnu/drivers/gpu/drm/drm_atomic.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/drm_atomic.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/drm_atomic.c	2017-12-20 04:05:01.000000000 -0500
@@ -150,7 +150,7 @@ void drm_atomic_state_default_clear(stru
 	for (i = 0; i < state->num_connector; i++) {
 		struct drm_connector *connector = state->connectors[i];
 
-		if (!connector)
+		if (!connector || !connector->funcs)
 			continue;
 
 		/*
@@ -367,6 +367,8 @@ int drm_atomic_set_mode_prop_for_crtc(st
 		drm_property_unreference_blob(state->mode_blob);
 	state->mode_blob = NULL;
 
+	memset(&state->mode, 0, sizeof(state->mode));
+
 	if (blob) {
 		if (blob->length != sizeof(struct drm_mode_modeinfo) ||
 		    drm_mode_convert_umode(&state->mode,
@@ -379,7 +381,6 @@ int drm_atomic_set_mode_prop_for_crtc(st
 		DRM_DEBUG_ATOMIC("Set [MODE:%s] for CRTC state %p\n",
 				 state->mode.name, state);
 	} else {
-		memset(&state->mode, 0, sizeof(state->mode));
 		state->enable = false;
 		DRM_DEBUG_ATOMIC("Set [NOMODE] for CRTC state %p\n",
 				 state);
@@ -1246,6 +1247,9 @@ int drm_atomic_check_only(struct drm_ato
 	if (config->funcs->atomic_check)
 		ret = config->funcs->atomic_check(state->dev, state);
 
+	if (ret)
+		return ret;
+
 	if (!state->allow_modeset) {
 		for_each_crtc_in_state(state, crtc, crtc_state, i) {
 			if (drm_atomic_crtc_needs_modeset(crtc_state)) {
@@ -1256,7 +1260,7 @@ int drm_atomic_check_only(struct drm_ato
 		}
 	}
 
-	return ret;
+	return 0;
 }
 EXPORT_SYMBOL(drm_atomic_check_only);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/drm_atomic_helper.c linux-libre-4.4.107-gnu/drivers/gpu/drm/drm_atomic_helper.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/drm_atomic_helper.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/drm_atomic_helper.c	2017-12-20 04:05:01.000000000 -0500
@@ -108,7 +108,6 @@ steal_encoder(struct drm_atomic_state *s
 	struct drm_crtc_state *crtc_state;
 	struct drm_connector *connector;
 	struct drm_connector_state *connector_state;
-	int ret;
 
 	/*
 	 * We can only steal an encoder coming from a connector, which means we
@@ -139,9 +138,6 @@ steal_encoder(struct drm_atomic_state *s
 		if (IS_ERR(connector_state))
 			return PTR_ERR(connector_state);
 
-		ret = drm_atomic_set_crtc_for_connector(connector_state, NULL);
-		if (ret)
-			return ret;
 		connector_state->best_encoder = NULL;
 	}
 
@@ -269,7 +265,7 @@ mode_fixup(struct drm_atomic_state *stat
 	struct drm_connector *connector;
 	struct drm_connector_state *conn_state;
 	int i;
-	bool ret;
+	int ret;
 
 	for_each_crtc_in_state(state, crtc, crtc_state, i) {
 		if (!crtc_state->mode_changed &&
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/drm_cache.c linux-libre-4.4.107-gnu/drivers/gpu/drm/drm_cache.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/drm_cache.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/drm_cache.c	2017-12-20 04:05:01.000000000 -0500
@@ -136,6 +136,7 @@ drm_clflush_virt_range(void *addr, unsig
 		mb();
 		for (; addr < end; addr += size)
 			clflushopt(addr);
+		clflushopt(end - 1); /* force serialisation */
 		mb();
 		return;
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/drm_crtc.c linux-libre-4.4.107-gnu/drivers/gpu/drm/drm_crtc.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/drm_crtc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/drm_crtc.c	2017-12-20 04:05:01.000000000 -0500
@@ -2682,8 +2682,6 @@ int drm_mode_setcrtc(struct drm_device *
 			goto out;
 		}
 
-		drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V);
-
 		/*
 		 * Check whether the primary plane supports the fb pixel format.
 		 * Drivers not implementing the universal planes API use a
@@ -3316,6 +3314,24 @@ int drm_mode_addfb2(struct drm_device *d
 	return 0;
 }
 
+struct drm_mode_rmfb_work {
+	struct work_struct work;
+	struct list_head fbs;
+};
+
+static void drm_mode_rmfb_work_fn(struct work_struct *w)
+{
+	struct drm_mode_rmfb_work *arg = container_of(w, typeof(*arg), work);
+
+	while (!list_empty(&arg->fbs)) {
+		struct drm_framebuffer *fb =
+			list_first_entry(&arg->fbs, typeof(*fb), filp_head);
+
+		list_del_init(&fb->filp_head);
+		drm_framebuffer_remove(fb);
+	}
+}
+
 /**
  * drm_mode_rmfb - remove an FB from the configuration
  * @dev: drm device for the ioctl
@@ -3356,7 +3372,25 @@ int drm_mode_rmfb(struct drm_device *dev
 	mutex_unlock(&dev->mode_config.fb_lock);
 	mutex_unlock(&file_priv->fbs_lock);
 
-	drm_framebuffer_unreference(fb);
+	/*
+	 * we now own the reference that was stored in the fbs list
+	 *
+	 * drm_framebuffer_remove may fail with -EINTR on pending signals,
+	 * so run this in a separate stack as there's no way to correctly
+	 * handle this after the fb is already removed from the lookup table.
+	 */
+	if (atomic_read(&fb->refcount.refcount) > 1) {
+		struct drm_mode_rmfb_work arg;
+
+		INIT_WORK_ONSTACK(&arg.work, drm_mode_rmfb_work_fn);
+		INIT_LIST_HEAD(&arg.fbs);
+		list_add_tail(&fb->filp_head, &arg.fbs);
+
+		schedule_work(&arg.work);
+		flush_work(&arg.work);
+		destroy_work_on_stack(&arg.work);
+	} else
+		drm_framebuffer_unreference(fb);
 
 	return 0;
 
@@ -3509,7 +3543,6 @@ out_err1:
 	return ret;
 }
 
-
 /**
  * drm_fb_release - remove and free the FBs on this file
  * @priv: drm file for the ioctl
@@ -3524,6 +3557,9 @@ out_err1:
 void drm_fb_release(struct drm_file *priv)
 {
 	struct drm_framebuffer *fb, *tfb;
+	struct drm_mode_rmfb_work arg;
+
+	INIT_LIST_HEAD(&arg.fbs);
 
 	/*
 	 * When the file gets released that means no one else can access the fb
@@ -3536,10 +3572,22 @@ void drm_fb_release(struct drm_file *pri
 	 * at it any more.
 	 */
 	list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) {
-		list_del_init(&fb->filp_head);
+		if (atomic_read(&fb->refcount.refcount) > 1) {
+			list_move_tail(&fb->filp_head, &arg.fbs);
+		} else {
+			list_del_init(&fb->filp_head);
 
-		/* This drops the fpriv->fbs reference. */
-		drm_framebuffer_unreference(fb);
+			/* This drops the fpriv->fbs reference. */
+			drm_framebuffer_unreference(fb);
+		}
+	}
+
+	if (!list_empty(&arg.fbs)) {
+		INIT_WORK_ONSTACK(&arg.work, drm_mode_rmfb_work_fn);
+
+		schedule_work(&arg.work);
+		flush_work(&arg.work);
+		destroy_work_on_stack(&arg.work);
 	}
 }
 
@@ -5183,6 +5231,9 @@ int drm_mode_page_flip_ioctl(struct drm_
 	unsigned long flags;
 	int ret = -EINVAL;
 
+	if (!drm_core_check_feature(dev, DRIVER_MODESET))
+		return -EINVAL;
+
 	if (page_flip->flags & ~DRM_MODE_PAGE_FLIP_FLAGS ||
 	    page_flip->reserved != 0)
 		return -EINVAL;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/drm_dp_helper.c linux-libre-4.4.107-gnu/drivers/gpu/drm/drm_dp_helper.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/drm_dp_helper.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/drm_dp_helper.c	2017-12-20 04:05:01.000000000 -0500
@@ -178,7 +178,7 @@ static int drm_dp_dpcd_access(struct drm
 {
 	struct drm_dp_aux_msg msg;
 	unsigned int retry;
-	int err;
+	int err = 0;
 
 	memset(&msg, 0, sizeof(msg));
 	msg.address = offset;
@@ -186,6 +186,8 @@ static int drm_dp_dpcd_access(struct drm
 	msg.buffer = buffer;
 	msg.size = size;
 
+	mutex_lock(&aux->hw_mutex);
+
 	/*
 	 * The specification doesn't give any recommendation on how often to
 	 * retry native transactions. We used to retry 7 times like for
@@ -194,25 +196,24 @@ static int drm_dp_dpcd_access(struct drm
 	 */
 	for (retry = 0; retry < 32; retry++) {
 
-		mutex_lock(&aux->hw_mutex);
 		err = aux->transfer(aux, &msg);
-		mutex_unlock(&aux->hw_mutex);
 		if (err < 0) {
 			if (err == -EBUSY)
 				continue;
 
-			return err;
+			goto unlock;
 		}
 
 
 		switch (msg.reply & DP_AUX_NATIVE_REPLY_MASK) {
 		case DP_AUX_NATIVE_REPLY_ACK:
 			if (err < size)
-				return -EPROTO;
-			return err;
+				err = -EPROTO;
+			goto unlock;
 
 		case DP_AUX_NATIVE_REPLY_NACK:
-			return -EIO;
+			err = -EIO;
+			goto unlock;
 
 		case DP_AUX_NATIVE_REPLY_DEFER:
 			usleep_range(AUX_RETRY_INTERVAL, AUX_RETRY_INTERVAL + 100);
@@ -221,7 +222,11 @@ static int drm_dp_dpcd_access(struct drm
 	}
 
 	DRM_DEBUG_KMS("too many retries, giving up\n");
-	return -EIO;
+	err = -EIO;
+
+unlock:
+	mutex_unlock(&aux->hw_mutex);
+	return err;
 }
 
 /**
@@ -543,9 +548,7 @@ static int drm_dp_i2c_do_msg(struct drm_
 	int max_retries = max(7, drm_dp_i2c_retry_count(msg, dp_aux_i2c_speed_khz));
 
 	for (retry = 0, defer_i2c = 0; retry < (max_retries + defer_i2c); retry++) {
-		mutex_lock(&aux->hw_mutex);
 		ret = aux->transfer(aux, msg);
-		mutex_unlock(&aux->hw_mutex);
 		if (ret < 0) {
 			if (ret == -EBUSY)
 				continue;
@@ -684,6 +687,8 @@ static int drm_dp_i2c_xfer(struct i2c_ad
 
 	memset(&msg, 0, sizeof(msg));
 
+	mutex_lock(&aux->hw_mutex);
+
 	for (i = 0; i < num; i++) {
 		msg.address = msgs[i].addr;
 		drm_dp_i2c_msg_set_request(&msg, &msgs[i]);
@@ -738,6 +743,8 @@ static int drm_dp_i2c_xfer(struct i2c_ad
 	msg.size = 0;
 	(void)drm_dp_i2c_do_msg(aux, &msg);
 
+	mutex_unlock(&aux->hw_mutex);
+
 	return err;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/drm_dp_mst_topology.c linux-libre-4.4.107-gnu/drivers/gpu/drm/drm_dp_mst_topology.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/drm_dp_mst_topology.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/drm_dp_mst_topology.c	2017-12-20 04:05:01.000000000 -0500
@@ -330,6 +330,13 @@ static bool drm_dp_sideband_msg_build(st
 			return false;
 		}
 
+		/*
+		 * ignore out-of-order messages or messages that are part of a
+		 * failed transaction
+		 */
+		if (!recv_hdr.somt && !msg->have_somt)
+			return false;
+
 		/* get length contained in this portion */
 		msg->curchunk_len = recv_hdr.msg_len;
 		msg->curchunk_hdrlen = hdrlen;
@@ -798,6 +805,18 @@ static struct drm_dp_mst_branch *drm_dp_
 	return mstb;
 }
 
+static void drm_dp_free_mst_port(struct kref *kref);
+
+static void drm_dp_free_mst_branch_device(struct kref *kref)
+{
+	struct drm_dp_mst_branch *mstb = container_of(kref, struct drm_dp_mst_branch, kref);
+	if (mstb->port_parent) {
+		if (list_empty(&mstb->port_parent->next))
+			kref_put(&mstb->port_parent->kref, drm_dp_free_mst_port);
+	}
+	kfree(mstb);
+}
+
 static void drm_dp_destroy_mst_branch_device(struct kref *kref)
 {
 	struct drm_dp_mst_branch *mstb = container_of(kref, struct drm_dp_mst_branch, kref);
@@ -805,6 +824,15 @@ static void drm_dp_destroy_mst_branch_de
 	bool wake_tx = false;
 
 	/*
+	 * init kref again to be used by ports to remove mst branch when it is
+	 * not needed anymore
+	 */
+	kref_init(kref);
+
+	if (mstb->port_parent && list_empty(&mstb->port_parent->next))
+		kref_get(&mstb->port_parent->kref);
+
+	/*
 	 * destroy all ports - don't need lock
 	 * as there are no more references to the mst branch
 	 * device at this point.
@@ -830,7 +858,8 @@ static void drm_dp_destroy_mst_branch_de
 
 	if (wake_tx)
 		wake_up(&mstb->mgr->tx_waitq);
-	kfree(mstb);
+
+	kref_put(kref, drm_dp_free_mst_branch_device);
 }
 
 static void drm_dp_put_mst_branch_device(struct drm_dp_mst_branch *mstb)
@@ -878,6 +907,7 @@ static void drm_dp_destroy_port(struct k
 			 * from an EDID retrieval */
 
 			mutex_lock(&mgr->destroy_connector_lock);
+			kref_get(&port->parent->kref);
 			list_add(&port->next, &mgr->destroy_connector_list);
 			mutex_unlock(&mgr->destroy_connector_lock);
 			schedule_work(&mgr->destroy_connector_work);
@@ -886,6 +916,7 @@ static void drm_dp_destroy_port(struct k
 		/* no need to clean up vcpi
 		 * as if we have no connector we never setup a vcpi */
 		drm_dp_port_teardown_pdt(port, port->pdt);
+		port->pdt = DP_PEER_DEVICE_NONE;
 	}
 	kfree(port);
 }
@@ -973,17 +1004,17 @@ static struct drm_dp_mst_port *drm_dp_ge
 static u8 drm_dp_calculate_rad(struct drm_dp_mst_port *port,
 				 u8 *rad)
 {
-	int lct = port->parent->lct;
+	int parent_lct = port->parent->lct;
 	int shift = 4;
-	int idx = lct / 2;
-	if (lct > 1) {
-		memcpy(rad, port->parent->rad, idx);
-		shift = (lct % 2) ? 4 : 0;
+	int idx = (parent_lct - 1) / 2;
+	if (parent_lct > 1) {
+		memcpy(rad, port->parent->rad, idx + 1);
+		shift = (parent_lct % 2) ? 4 : 0;
 	} else
 		rad[0] = 0;
 
 	rad[idx] |= port->port_num << shift;
-	return lct + 1;
+	return parent_lct + 1;
 }
 
 /*
@@ -1013,18 +1044,27 @@ static bool drm_dp_port_setup_pdt(struct
 	return send_link;
 }
 
-static void drm_dp_check_port_guid(struct drm_dp_mst_branch *mstb,
-				   struct drm_dp_mst_port *port)
+static void drm_dp_check_mstb_guid(struct drm_dp_mst_branch *mstb, u8 *guid)
 {
 	int ret;
-	if (port->dpcd_rev >= 0x12) {
-		port->guid_valid = drm_dp_validate_guid(mstb->mgr, port->guid);
-		if (!port->guid_valid) {
-			ret = drm_dp_send_dpcd_write(mstb->mgr,
-						     port,
-						     DP_GUID,
-						     16, port->guid);
-			port->guid_valid = true;
+
+	memcpy(mstb->guid, guid, 16);
+
+	if (!drm_dp_validate_guid(mstb->mgr, mstb->guid)) {
+		if (mstb->port_parent) {
+			ret = drm_dp_send_dpcd_write(
+					mstb->mgr,
+					mstb->port_parent,
+					DP_GUID,
+					16,
+					mstb->guid);
+		} else {
+
+			ret = drm_dp_dpcd_write(
+					mstb->mgr->aux,
+					DP_GUID,
+					mstb->guid,
+					16);
 		}
 	}
 }
@@ -1039,7 +1079,7 @@ static void build_mst_prop_path(const st
 	snprintf(proppath, proppath_size, "mst:%d", mstb->mgr->conn_base_id);
 	for (i = 0; i < (mstb->lct - 1); i++) {
 		int shift = (i % 2) ? 0 : 4;
-		int port_num = mstb->rad[i / 2] >> shift;
+		int port_num = (mstb->rad[i / 2] >> shift) & 0xf;
 		snprintf(temp, sizeof(temp), "-%d", port_num);
 		strlcat(proppath, temp, proppath_size);
 	}
@@ -1081,7 +1121,6 @@ static void drm_dp_add_port(struct drm_d
 	port->dpcd_rev = port_msg->dpcd_revision;
 	port->num_sdp_streams = port_msg->num_sdp_streams;
 	port->num_sdp_stream_sinks = port_msg->num_sdp_stream_sinks;
-	memcpy(port->guid, port_msg->peer_guid, 16);
 
 	/* manage mstb port lists with mgr lock - take a reference
 	   for this list */
@@ -1094,11 +1133,9 @@ static void drm_dp_add_port(struct drm_d
 
 	if (old_ddps != port->ddps) {
 		if (port->ddps) {
-			drm_dp_check_port_guid(mstb, port);
 			if (!port->input)
 				drm_dp_send_enum_path_resources(mstb->mgr, mstb, port);
 		} else {
-			port->guid_valid = false;
 			port->available_pbn = 0;
 			}
 	}
@@ -1125,7 +1162,9 @@ static void drm_dp_add_port(struct drm_d
 			drm_dp_put_port(port);
 			goto out;
 		}
-		if (port->port_num >= DP_MST_LOGICAL_PORT_0) {
+		if ((port->pdt == DP_PEER_DEVICE_DP_LEGACY_CONV ||
+		     port->pdt == DP_PEER_DEVICE_SST_SINK) &&
+		    port->port_num >= DP_MST_LOGICAL_PORT_0) {
 			port->cached_edid = drm_get_edid(port->connector, &port->aux.ddc);
 			drm_mode_connector_set_tile_property(port->connector);
 		}
@@ -1157,10 +1196,8 @@ static void drm_dp_update_port(struct dr
 
 	if (old_ddps != port->ddps) {
 		if (port->ddps) {
-			drm_dp_check_port_guid(mstb, port);
 			dowork = true;
 		} else {
-			port->guid_valid = false;
 			port->available_pbn = 0;
 		}
 	}
@@ -1190,7 +1227,7 @@ static struct drm_dp_mst_branch *drm_dp_
 
 	for (i = 0; i < lct - 1; i++) {
 		int shift = (i % 2) ? 0 : 4;
-		int port_num = rad[i / 2] >> shift;
+		int port_num = (rad[i / 2] >> shift) & 0xf;
 
 		list_for_each_entry(port, &mstb->ports, next) {
 			if (port->port_num == port_num) {
@@ -1210,6 +1247,48 @@ out:
 	return mstb;
 }
 
+static struct drm_dp_mst_branch *get_mst_branch_device_by_guid_helper(
+	struct drm_dp_mst_branch *mstb,
+	uint8_t *guid)
+{
+	struct drm_dp_mst_branch *found_mstb;
+	struct drm_dp_mst_port *port;
+
+	if (memcmp(mstb->guid, guid, 16) == 0)
+		return mstb;
+
+
+	list_for_each_entry(port, &mstb->ports, next) {
+		if (!port->mstb)
+			continue;
+
+		found_mstb = get_mst_branch_device_by_guid_helper(port->mstb, guid);
+
+		if (found_mstb)
+			return found_mstb;
+	}
+
+	return NULL;
+}
+
+static struct drm_dp_mst_branch *drm_dp_get_mst_branch_device_by_guid(
+	struct drm_dp_mst_topology_mgr *mgr,
+	uint8_t *guid)
+{
+	struct drm_dp_mst_branch *mstb;
+
+	/* find the port by iterating down */
+	mutex_lock(&mgr->lock);
+
+	mstb = get_mst_branch_device_by_guid_helper(mgr->mst_primary, guid);
+
+	if (mstb)
+		kref_get(&mstb->kref);
+
+	mutex_unlock(&mgr->lock);
+	return mstb;
+}
+
 static void drm_dp_check_and_send_link_address(struct drm_dp_mst_topology_mgr *mgr,
 					       struct drm_dp_mst_branch *mstb)
 {
@@ -1320,6 +1399,7 @@ static int set_hdr_from_dst_qlock(struct
 				  struct drm_dp_sideband_msg_tx *txmsg)
 {
 	struct drm_dp_mst_branch *mstb = txmsg->dst;
+	u8 req_type;
 
 	/* both msg slots are full */
 	if (txmsg->seqno == -1) {
@@ -1336,7 +1416,13 @@ static int set_hdr_from_dst_qlock(struct
 			txmsg->seqno = 1;
 		mstb->tx_slots[txmsg->seqno] = txmsg;
 	}
-	hdr->broadcast = 0;
+
+	req_type = txmsg->msg[0] & 0x7f;
+	if (req_type == DP_CONNECTION_STATUS_NOTIFY ||
+		req_type == DP_RESOURCE_STATUS_NOTIFY)
+		hdr->broadcast = 1;
+	else
+		hdr->broadcast = 0;
 	hdr->path_msg = txmsg->path_msg;
 	hdr->lct = mstb->lct;
 	hdr->lcr = mstb->lct - 1;
@@ -1438,26 +1524,18 @@ static void process_single_down_tx_qlock
 }
 
 /* called holding qlock */
-static void process_single_up_tx_qlock(struct drm_dp_mst_topology_mgr *mgr)
+static void process_single_up_tx_qlock(struct drm_dp_mst_topology_mgr *mgr,
+				       struct drm_dp_sideband_msg_tx *txmsg)
 {
-	struct drm_dp_sideband_msg_tx *txmsg;
 	int ret;
 
 	/* construct a chunk from the first msg in the tx_msg queue */
-	if (list_empty(&mgr->tx_msg_upq)) {
-		mgr->tx_up_in_progress = false;
-		return;
-	}
-
-	txmsg = list_first_entry(&mgr->tx_msg_upq, struct drm_dp_sideband_msg_tx, next);
 	ret = process_single_tx_qlock(mgr, txmsg, true);
-	if (ret == 1) {
-		/* up txmsgs aren't put in slots - so free after we send it */
-		list_del(&txmsg->next);
-		kfree(txmsg);
-	} else if (ret)
+
+	if (ret != 1)
 		DRM_DEBUG_KMS("failed to send msg in q %d\n", ret);
-	mgr->tx_up_in_progress = true;
+
+	txmsg->dst->tx_slots[txmsg->seqno] = NULL;
 }
 
 static void drm_dp_queue_down_tx(struct drm_dp_mst_topology_mgr *mgr,
@@ -1507,6 +1585,9 @@ static void drm_dp_send_link_address(str
 				       txmsg->reply.u.link_addr.ports[i].num_sdp_streams,
 				       txmsg->reply.u.link_addr.ports[i].num_sdp_stream_sinks);
 			}
+
+			drm_dp_check_mstb_guid(mstb, txmsg->reply.u.link_addr.guid);
+
 			for (i = 0; i < txmsg->reply.u.link_addr.nports; i++) {
 				drm_dp_add_port(mstb, mgr->dev, &txmsg->reply.u.link_addr.ports[i]);
 			}
@@ -1554,6 +1635,37 @@ static int drm_dp_send_enum_path_resourc
 	return 0;
 }
 
+static struct drm_dp_mst_port *drm_dp_get_last_connected_port_to_mstb(struct drm_dp_mst_branch *mstb)
+{
+	if (!mstb->port_parent)
+		return NULL;
+
+	if (mstb->port_parent->mstb != mstb)
+		return mstb->port_parent;
+
+	return drm_dp_get_last_connected_port_to_mstb(mstb->port_parent->parent);
+}
+
+static struct drm_dp_mst_branch *drm_dp_get_last_connected_port_and_mstb(struct drm_dp_mst_topology_mgr *mgr,
+									 struct drm_dp_mst_branch *mstb,
+									 int *port_num)
+{
+	struct drm_dp_mst_branch *rmstb = NULL;
+	struct drm_dp_mst_port *found_port;
+	mutex_lock(&mgr->lock);
+	if (mgr->mst_primary) {
+		found_port = drm_dp_get_last_connected_port_to_mstb(mstb);
+
+		if (found_port) {
+			rmstb = found_port->parent;
+			kref_get(&rmstb->kref);
+			*port_num = found_port->port_num;
+		}
+	}
+	mutex_unlock(&mgr->lock);
+	return rmstb;
+}
+
 static int drm_dp_payload_send_msg(struct drm_dp_mst_topology_mgr *mgr,
 				   struct drm_dp_mst_port *port,
 				   int id,
@@ -1561,12 +1673,23 @@ static int drm_dp_payload_send_msg(struc
 {
 	struct drm_dp_sideband_msg_tx *txmsg;
 	struct drm_dp_mst_branch *mstb;
-	int len, ret;
+	int len, ret, port_num;
 
-	mstb = drm_dp_get_validated_mstb_ref(mgr, port->parent);
-	if (!mstb)
+	port = drm_dp_get_validated_port_ref(mgr, port);
+	if (!port)
 		return -EINVAL;
 
+	port_num = port->port_num;
+	mstb = drm_dp_get_validated_mstb_ref(mgr, port->parent);
+	if (!mstb) {
+		mstb = drm_dp_get_last_connected_port_and_mstb(mgr, port->parent, &port_num);
+
+		if (!mstb) {
+			drm_dp_put_port(port);
+			return -EINVAL;
+		}
+	}
+
 	txmsg = kzalloc(sizeof(*txmsg), GFP_KERNEL);
 	if (!txmsg) {
 		ret = -ENOMEM;
@@ -1574,7 +1697,7 @@ static int drm_dp_payload_send_msg(struc
 	}
 
 	txmsg->dst = mstb;
-	len = build_allocate_payload(txmsg, port->port_num,
+	len = build_allocate_payload(txmsg, port_num,
 				     id,
 				     pbn);
 
@@ -1590,6 +1713,7 @@ static int drm_dp_payload_send_msg(struc
 	kfree(txmsg);
 fail_put:
 	drm_dp_put_mst_branch_device(mstb);
+	drm_dp_put_port(port);
 	return ret;
 }
 
@@ -1672,7 +1796,13 @@ int drm_dp_update_payload_part1(struct d
 		req_payload.start_slot = cur_slots;
 		if (mgr->proposed_vcpis[i]) {
 			port = container_of(mgr->proposed_vcpis[i], struct drm_dp_mst_port, vcpi);
+			port = drm_dp_get_validated_port_ref(mgr, port);
+			if (!port) {
+				mutex_unlock(&mgr->payload_lock);
+				return -EINVAL;
+			}
 			req_payload.num_slots = mgr->proposed_vcpis[i]->num_slots;
+			req_payload.vcpi = mgr->proposed_vcpis[i]->vcpi;
 		} else {
 			port = NULL;
 			req_payload.num_slots = 0;
@@ -1688,15 +1818,19 @@ int drm_dp_update_payload_part1(struct d
 			if (req_payload.num_slots) {
 				drm_dp_create_payload_step1(mgr, mgr->proposed_vcpis[i]->vcpi, &req_payload);
 				mgr->payloads[i].num_slots = req_payload.num_slots;
+				mgr->payloads[i].vcpi = req_payload.vcpi;
 			} else if (mgr->payloads[i].num_slots) {
 				mgr->payloads[i].num_slots = 0;
-				drm_dp_destroy_payload_step1(mgr, port, port->vcpi.vcpi, &mgr->payloads[i]);
+				drm_dp_destroy_payload_step1(mgr, port, mgr->payloads[i].vcpi, &mgr->payloads[i]);
 				req_payload.payload_state = mgr->payloads[i].payload_state;
 				mgr->payloads[i].start_slot = 0;
 			}
 			mgr->payloads[i].payload_state = req_payload.payload_state;
 		}
 		cur_slots += req_payload.num_slots;
+
+		if (port)
+			drm_dp_put_port(port);
 	}
 
 	for (i = 0; i < mgr->max_payloads; i++) {
@@ -1844,11 +1978,12 @@ static int drm_dp_send_up_ack_reply(stru
 	drm_dp_encode_up_ack_reply(txmsg, req_type);
 
 	mutex_lock(&mgr->qlock);
-	list_add_tail(&txmsg->next, &mgr->tx_msg_upq);
-	if (!mgr->tx_up_in_progress) {
-		process_single_up_tx_qlock(mgr);
-	}
+
+	process_single_up_tx_qlock(mgr, txmsg);
+
 	mutex_unlock(&mgr->qlock);
+
+	kfree(txmsg);
 	return 0;
 }
 
@@ -1927,31 +2062,17 @@ int drm_dp_mst_topology_mgr_set_mst(stru
 		mgr->mst_primary = mstb;
 		kref_get(&mgr->mst_primary->kref);
 
-		{
-			struct drm_dp_payload reset_pay;
-			reset_pay.start_slot = 0;
-			reset_pay.num_slots = 0x3f;
-			drm_dp_dpcd_write_payload(mgr, 0, &reset_pay);
-		}
-
 		ret = drm_dp_dpcd_writeb(mgr->aux, DP_MSTM_CTRL,
-					 DP_MST_EN | DP_UP_REQ_EN | DP_UPSTREAM_IS_SRC);
+							 DP_MST_EN | DP_UP_REQ_EN | DP_UPSTREAM_IS_SRC);
 		if (ret < 0) {
 			goto out_unlock;
 		}
 
-
-		/* sort out guid */
-		ret = drm_dp_dpcd_read(mgr->aux, DP_GUID, mgr->guid, 16);
-		if (ret != 16) {
-			DRM_DEBUG_KMS("failed to read DP GUID %d\n", ret);
-			goto out_unlock;
-		}
-
-		mgr->guid_valid = drm_dp_validate_guid(mgr, mgr->guid);
-		if (!mgr->guid_valid) {
-			ret = drm_dp_dpcd_write(mgr->aux, DP_GUID, mgr->guid, 16);
-			mgr->guid_valid = true;
+		{
+			struct drm_dp_payload reset_pay;
+			reset_pay.start_slot = 0;
+			reset_pay.num_slots = 0x3f;
+			drm_dp_dpcd_write_payload(mgr, 0, &reset_pay);
 		}
 
 		queue_work(system_long_wq, &mgr->work);
@@ -2015,6 +2136,8 @@ int drm_dp_mst_topology_mgr_resume(struc
 
 	if (mgr->mst_primary) {
 		int sret;
+		u8 guid[16];
+
 		sret = drm_dp_dpcd_read(mgr->aux, DP_DPCD_REV, mgr->dpcd, DP_RECEIVER_CAP_SIZE);
 		if (sret != DP_RECEIVER_CAP_SIZE) {
 			DRM_DEBUG_KMS("dpcd read failed - undocked during suspend?\n");
@@ -2029,6 +2152,16 @@ int drm_dp_mst_topology_mgr_resume(struc
 			ret = -1;
 			goto out_unlock;
 		}
+
+		/* Some hubs forget their guids after they resume */
+		sret = drm_dp_dpcd_read(mgr->aux, DP_GUID, guid, 16);
+		if (sret != 16) {
+			DRM_DEBUG_KMS("dpcd read failed - undocked during suspend?\n");
+			ret = -1;
+			goto out_unlock;
+		}
+		drm_dp_check_mstb_guid(mgr->mst_primary, guid);
+
 		ret = 0;
 	} else
 		ret = -1;
@@ -2039,7 +2172,7 @@ out_unlock:
 }
 EXPORT_SYMBOL(drm_dp_mst_topology_mgr_resume);
 
-static void drm_dp_get_one_sb_msg(struct drm_dp_mst_topology_mgr *mgr, bool up)
+static bool drm_dp_get_one_sb_msg(struct drm_dp_mst_topology_mgr *mgr, bool up)
 {
 	int len;
 	u8 replyblock[32];
@@ -2054,12 +2187,12 @@ static void drm_dp_get_one_sb_msg(struct
 			       replyblock, len);
 	if (ret != len) {
 		DRM_DEBUG_KMS("failed to read DPCD down rep %d %d\n", len, ret);
-		return;
+		return false;
 	}
 	ret = drm_dp_sideband_msg_build(msg, replyblock, len, true);
 	if (!ret) {
 		DRM_DEBUG_KMS("sideband msg build failed %d\n", replyblock[0]);
-		return;
+		return false;
 	}
 	replylen = msg->curchunk_len + msg->curchunk_hdrlen;
 
@@ -2071,21 +2204,32 @@ static void drm_dp_get_one_sb_msg(struct
 		ret = drm_dp_dpcd_read(mgr->aux, basereg + curreply,
 				    replyblock, len);
 		if (ret != len) {
-			DRM_DEBUG_KMS("failed to read a chunk\n");
+			DRM_DEBUG_KMS("failed to read a chunk (len %d, ret %d)\n",
+				      len, ret);
+			return false;
 		}
+
 		ret = drm_dp_sideband_msg_build(msg, replyblock, len, false);
-		if (ret == false)
+		if (!ret) {
 			DRM_DEBUG_KMS("failed to build sideband msg\n");
+			return false;
+		}
+
 		curreply += len;
 		replylen -= len;
 	}
+	return true;
 }
 
 static int drm_dp_mst_handle_down_rep(struct drm_dp_mst_topology_mgr *mgr)
 {
 	int ret = 0;
 
-	drm_dp_get_one_sb_msg(mgr, false);
+	if (!drm_dp_get_one_sb_msg(mgr, false)) {
+		memset(&mgr->down_rep_recv, 0,
+		       sizeof(struct drm_dp_sideband_msg_rx));
+		return 0;
+	}
 
 	if (mgr->down_rep_recv.have_eomt) {
 		struct drm_dp_sideband_msg_tx *txmsg;
@@ -2141,36 +2285,66 @@ static int drm_dp_mst_handle_down_rep(st
 static int drm_dp_mst_handle_up_req(struct drm_dp_mst_topology_mgr *mgr)
 {
 	int ret = 0;
-	drm_dp_get_one_sb_msg(mgr, true);
+
+	if (!drm_dp_get_one_sb_msg(mgr, true)) {
+		memset(&mgr->up_req_recv, 0,
+		       sizeof(struct drm_dp_sideband_msg_rx));
+		return 0;
+	}
 
 	if (mgr->up_req_recv.have_eomt) {
 		struct drm_dp_sideband_msg_req_body msg;
-		struct drm_dp_mst_branch *mstb;
+		struct drm_dp_mst_branch *mstb = NULL;
 		bool seqno;
-		mstb = drm_dp_get_mst_branch_device(mgr,
-						    mgr->up_req_recv.initial_hdr.lct,
-						    mgr->up_req_recv.initial_hdr.rad);
-		if (!mstb) {
-			DRM_DEBUG_KMS("Got MST reply from unknown device %d\n", mgr->up_req_recv.initial_hdr.lct);
-			memset(&mgr->up_req_recv, 0, sizeof(struct drm_dp_sideband_msg_rx));
-			return 0;
+
+		if (!mgr->up_req_recv.initial_hdr.broadcast) {
+			mstb = drm_dp_get_mst_branch_device(mgr,
+							    mgr->up_req_recv.initial_hdr.lct,
+							    mgr->up_req_recv.initial_hdr.rad);
+			if (!mstb) {
+				DRM_DEBUG_KMS("Got MST reply from unknown device %d\n", mgr->up_req_recv.initial_hdr.lct);
+				memset(&mgr->up_req_recv, 0, sizeof(struct drm_dp_sideband_msg_rx));
+				return 0;
+			}
 		}
 
 		seqno = mgr->up_req_recv.initial_hdr.seqno;
 		drm_dp_sideband_parse_req(&mgr->up_req_recv, &msg);
 
 		if (msg.req_type == DP_CONNECTION_STATUS_NOTIFY) {
-			drm_dp_send_up_ack_reply(mgr, mstb, msg.req_type, seqno, false);
+			drm_dp_send_up_ack_reply(mgr, mgr->mst_primary, msg.req_type, seqno, false);
+
+			if (!mstb)
+				mstb = drm_dp_get_mst_branch_device_by_guid(mgr, msg.u.conn_stat.guid);
+
+			if (!mstb) {
+				DRM_DEBUG_KMS("Got MST reply from unknown device %d\n", mgr->up_req_recv.initial_hdr.lct);
+				memset(&mgr->up_req_recv, 0, sizeof(struct drm_dp_sideband_msg_rx));
+				return 0;
+			}
+
 			drm_dp_update_port(mstb, &msg.u.conn_stat);
+
 			DRM_DEBUG_KMS("Got CSN: pn: %d ldps:%d ddps: %d mcs: %d ip: %d pdt: %d\n", msg.u.conn_stat.port_number, msg.u.conn_stat.legacy_device_plug_status, msg.u.conn_stat.displayport_device_plug_status, msg.u.conn_stat.message_capability_status, msg.u.conn_stat.input_port, msg.u.conn_stat.peer_device_type);
 			(*mgr->cbs->hotplug)(mgr);
 
 		} else if (msg.req_type == DP_RESOURCE_STATUS_NOTIFY) {
-			drm_dp_send_up_ack_reply(mgr, mstb, msg.req_type, seqno, false);
+			drm_dp_send_up_ack_reply(mgr, mgr->mst_primary, msg.req_type, seqno, false);
+			if (!mstb)
+				mstb = drm_dp_get_mst_branch_device_by_guid(mgr, msg.u.resource_stat.guid);
+
+			if (!mstb) {
+				DRM_DEBUG_KMS("Got MST reply from unknown device %d\n", mgr->up_req_recv.initial_hdr.lct);
+				memset(&mgr->up_req_recv, 0, sizeof(struct drm_dp_sideband_msg_rx));
+				return 0;
+			}
+
 			DRM_DEBUG_KMS("Got RSN: pn: %d avail_pbn %d\n", msg.u.resource_stat.port_number, msg.u.resource_stat.available_pbn);
 		}
 
-		drm_dp_put_mst_branch_device(mstb);
+		if (mstb)
+			drm_dp_put_mst_branch_device(mstb);
+
 		memset(&mgr->up_req_recv, 0, sizeof(struct drm_dp_sideband_msg_rx));
 	}
 	return ret;
@@ -2346,6 +2520,7 @@ bool drm_dp_mst_allocate_vcpi(struct drm
 		DRM_DEBUG_KMS("payload: vcpi %d already allocated for pbn %d - requested pbn %d\n", port->vcpi.vcpi, port->vcpi.pbn, pbn);
 		if (pbn == port->vcpi.pbn) {
 			*slots = port->vcpi.num_slots;
+			drm_dp_put_port(port);
 			return true;
 		}
 	}
@@ -2505,32 +2680,31 @@ EXPORT_SYMBOL(drm_dp_check_act_status);
  */
 int drm_dp_calc_pbn_mode(int clock, int bpp)
 {
-	fixed20_12 pix_bw;
-	fixed20_12 fbpp;
-	fixed20_12 result;
-	fixed20_12 margin, tmp;
-	u32 res;
+	u64 kbps;
+	s64 peak_kbps;
+	u32 numerator;
+	u32 denominator;
 
-	pix_bw.full = dfixed_const(clock);
-	fbpp.full = dfixed_const(bpp);
-	tmp.full = dfixed_const(8);
-	fbpp.full = dfixed_div(fbpp, tmp);
+	kbps = clock * bpp;
 
-	result.full = dfixed_mul(pix_bw, fbpp);
-	margin.full = dfixed_const(54);
-	tmp.full = dfixed_const(64);
-	margin.full = dfixed_div(margin, tmp);
-	result.full = dfixed_div(result, margin);
+	/*
+	 * margin 5300ppm + 300ppm ~ 0.6% as per spec, factor is 1.006
+	 * The unit of 54/64Mbytes/sec is an arbitrary unit chosen based on
+	 * common multiplier to render an integer PBN for all link rate/lane
+	 * counts combinations
+	 * calculate
+	 * peak_kbps *= (1006/1000)
+	 * peak_kbps *= (64/54)
+	 * peak_kbps *= 8    convert to bytes
+	 */
 
-	margin.full = dfixed_const(1006);
-	tmp.full = dfixed_const(1000);
-	margin.full = dfixed_div(margin, tmp);
-	result.full = dfixed_mul(result, margin);
+	numerator = 64 * 1006;
+	denominator = 54 * 8 * 1000 * 1000;
 
-	result.full = dfixed_div(result, tmp);
-	result.full = dfixed_ceil(result);
-	res = dfixed_trunc(result);
-	return res;
+	kbps *= numerator;
+	peak_kbps = drm_fixp_from_fraction(kbps, denominator);
+
+	return drm_fixp2int_ceil(peak_kbps);
 }
 EXPORT_SYMBOL(drm_dp_calc_pbn_mode);
 
@@ -2538,11 +2712,23 @@ static int test_calc_pbn_mode(void)
 {
 	int ret;
 	ret = drm_dp_calc_pbn_mode(154000, 30);
-	if (ret != 689)
+	if (ret != 689) {
+		DRM_ERROR("PBN calculation test failed - clock %d, bpp %d, expected PBN %d, actual PBN %d.\n",
+				154000, 30, 689, ret);
 		return -EINVAL;
+	}
 	ret = drm_dp_calc_pbn_mode(234000, 30);
-	if (ret != 1047)
+	if (ret != 1047) {
+		DRM_ERROR("PBN calculation test failed - clock %d, bpp %d, expected PBN %d, actual PBN %d.\n",
+				234000, 30, 1047, ret);
 		return -EINVAL;
+	}
+	ret = drm_dp_calc_pbn_mode(297000, 24);
+	if (ret != 1063) {
+		DRM_ERROR("PBN calculation test failed - clock %d, bpp %d, expected PBN %d, actual PBN %d.\n",
+				297000, 24, 1063, ret);
+		return -EINVAL;
+	}
 	return 0;
 }
 
@@ -2683,6 +2869,13 @@ static void drm_dp_tx_work(struct work_s
 	mutex_unlock(&mgr->qlock);
 }
 
+static void drm_dp_free_mst_port(struct kref *kref)
+{
+	struct drm_dp_mst_port *port = container_of(kref, struct drm_dp_mst_port, kref);
+	kref_put(&port->parent->kref, drm_dp_free_mst_branch_device);
+	kfree(port);
+}
+
 static void drm_dp_destroy_connector_work(struct work_struct *work)
 {
 	struct drm_dp_mst_topology_mgr *mgr = container_of(work, struct drm_dp_mst_topology_mgr, destroy_connector_work);
@@ -2703,13 +2896,21 @@ static void drm_dp_destroy_connector_wor
 		list_del(&port->next);
 		mutex_unlock(&mgr->destroy_connector_lock);
 
+		kref_init(&port->kref);
+		INIT_LIST_HEAD(&port->next);
+
 		mgr->cbs->destroy_connector(mgr, port->connector);
 
 		drm_dp_port_teardown_pdt(port, port->pdt);
+		port->pdt = DP_PEER_DEVICE_NONE;
 
-		if (!port->input && port->vcpi.vcpi > 0)
+		if (!port->input && port->vcpi.vcpi > 0) {
+			drm_dp_mst_reset_vcpi_slots(mgr, port);
+			drm_dp_update_payload_part1(mgr);
 			drm_dp_mst_put_payload_id(mgr, port->vcpi.vcpi);
-		kfree(port);
+		}
+
+		kref_put(&port->kref, drm_dp_free_mst_port);
 		send_hotplug = true;
 	}
 	if (send_hotplug)
@@ -2736,7 +2937,6 @@ int drm_dp_mst_topology_mgr_init(struct
 	mutex_init(&mgr->qlock);
 	mutex_init(&mgr->payload_lock);
 	mutex_init(&mgr->destroy_connector_lock);
-	INIT_LIST_HEAD(&mgr->tx_msg_upq);
 	INIT_LIST_HEAD(&mgr->tx_msg_downq);
 	INIT_LIST_HEAD(&mgr->destroy_connector_list);
 	INIT_WORK(&mgr->work, drm_dp_mst_link_probe_work);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/drm_drv.c linux-libre-4.4.107-gnu/drivers/gpu/drm/drm_drv.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/drm_drv.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/drm_drv.c	2017-12-20 04:05:01.000000000 -0500
@@ -312,7 +312,7 @@ static int drm_minor_register(struct drm
 	ret = drm_debugfs_init(minor, minor->index, drm_debugfs_root);
 	if (ret) {
 		DRM_ERROR("DRM: Failed to initialize /sys/kernel/debug/dri.\n");
-		return ret;
+		goto err_debugfs;
 	}
 
 	ret = device_add(minor->kdev);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/drm_edid.c linux-libre-4.4.107-gnu/drivers/gpu/drm/drm_edid.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/drm_edid.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/drm_edid.c	2017-12-20 04:05:01.000000000 -0500
@@ -73,6 +73,10 @@
 #define EDID_QUIRK_FORCE_8BPC			(1 << 8)
 /* Force 12bpc */
 #define EDID_QUIRK_FORCE_12BPC			(1 << 9)
+/* Force 6bpc */
+#define EDID_QUIRK_FORCE_6BPC			(1 << 10)
+/* Force 10bpc */
+#define EDID_QUIRK_FORCE_10BPC			(1 << 11)
 
 struct detailed_mode_closure {
 	struct drm_connector *connector;
@@ -99,6 +103,9 @@ static struct edid_quirk {
 	/* Unknown Acer */
 	{ "ACR", 2423, EDID_QUIRK_FIRST_DETAILED_PREFERRED },
 
+	/* AEO model 0 reports 8 bpc, but is a 6 bpc panel */
+	{ "AEO", 0, EDID_QUIRK_FORCE_6BPC },
+
 	/* Belinea 10 15 55 */
 	{ "MAX", 1516, EDID_QUIRK_PREFER_LARGE_60 },
 	{ "MAX", 0x77e, EDID_QUIRK_PREFER_LARGE_60 },
@@ -112,6 +119,9 @@ static struct edid_quirk {
 	{ "FCM", 13600, EDID_QUIRK_PREFER_LARGE_75 |
 	  EDID_QUIRK_DETAILED_IN_CM },
 
+	/* LGD panel of HP zBook 17 G2, eDP 10 bpc, but reports unknown bpc */
+	{ "LGD", 764, EDID_QUIRK_FORCE_10BPC },
+
 	/* LG Philips LCD LP154W01-A5 */
 	{ "LPL", 0, EDID_QUIRK_DETAILED_USE_MAXIMUM_SIZE },
 	{ "LPL", 0x2a00, EDID_QUIRK_DETAILED_USE_MAXIMUM_SIZE },
@@ -139,6 +149,9 @@ static struct edid_quirk {
 
 	/* Panel in Samsung NP700G7A-S01PL notebook reports 6bpc */
 	{ "SEC", 0xd033, EDID_QUIRK_FORCE_8BPC },
+
+	/* Rotel RSX-1058 forwards sink's EDID but only does HDMI 1.1*/
+	{ "ETR", 13896, EDID_QUIRK_FORCE_8BPC },
 };
 
 /*
@@ -3820,9 +3833,15 @@ int drm_add_edid_modes(struct drm_connec
 
 	drm_add_display_info(edid, &connector->display_info, connector);
 
+	if (quirks & EDID_QUIRK_FORCE_6BPC)
+		connector->display_info.bpc = 6;
+
 	if (quirks & EDID_QUIRK_FORCE_8BPC)
 		connector->display_info.bpc = 8;
 
+	if (quirks & EDID_QUIRK_FORCE_10BPC)
+		connector->display_info.bpc = 10;
+
 	if (quirks & EDID_QUIRK_FORCE_12BPC)
 		connector->display_info.bpc = 12;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/drm_fb_helper.c linux-libre-4.4.107-gnu/drivers/gpu/drm/drm_fb_helper.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/drm_fb_helper.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/drm_fb_helper.c	2017-12-20 04:05:01.000000000 -0500
@@ -1899,7 +1899,6 @@ static int drm_pick_crtcs(struct drm_fb_
 			  int n, int width, int height)
 {
 	int c, o;
-	struct drm_device *dev = fb_helper->dev;
 	struct drm_connector *connector;
 	const struct drm_connector_helper_funcs *connector_funcs;
 	struct drm_encoder *encoder;
@@ -1918,7 +1917,7 @@ static int drm_pick_crtcs(struct drm_fb_
 	if (modes[n] == NULL)
 		return best_score;
 
-	crtcs = kzalloc(dev->mode_config.num_connector *
+	crtcs = kzalloc(fb_helper->connector_count *
 			sizeof(struct drm_fb_helper_crtc *), GFP_KERNEL);
 	if (!crtcs)
 		return best_score;
@@ -1964,7 +1963,7 @@ static int drm_pick_crtcs(struct drm_fb_
 		if (score > best_score) {
 			best_score = score;
 			memcpy(best_crtcs, crtcs,
-			       dev->mode_config.num_connector *
+			       fb_helper->connector_count *
 			       sizeof(struct drm_fb_helper_crtc *));
 		}
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/drm_gem.c linux-libre-4.4.107-gnu/drivers/gpu/drm/drm_gem.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/drm_gem.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/drm_gem.c	2017-12-20 04:05:01.000000000 -0500
@@ -338,27 +338,32 @@ drm_gem_handle_create_tail(struct drm_fi
 	spin_unlock(&file_priv->table_lock);
 	idr_preload_end();
 	mutex_unlock(&dev->object_name_lock);
-	if (ret < 0) {
-		drm_gem_object_handle_unreference_unlocked(obj);
-		return ret;
-	}
+	if (ret < 0)
+		goto err_unref;
+
 	*handlep = ret;
 
 	ret = drm_vma_node_allow(&obj->vma_node, file_priv->filp);
-	if (ret) {
-		drm_gem_handle_delete(file_priv, *handlep);
-		return ret;
-	}
+	if (ret)
+		goto err_remove;
 
 	if (dev->driver->gem_open_object) {
 		ret = dev->driver->gem_open_object(obj, file_priv);
-		if (ret) {
-			drm_gem_handle_delete(file_priv, *handlep);
-			return ret;
-		}
+		if (ret)
+			goto err_revoke;
 	}
 
 	return 0;
+
+err_revoke:
+	drm_vma_node_revoke(&obj->vma_node, file_priv->filp);
+err_remove:
+	spin_lock(&file_priv->table_lock);
+	idr_remove(&file_priv->object_idr, *handlep);
+	spin_unlock(&file_priv->table_lock);
+err_unref:
+	drm_gem_object_handle_unreference_unlocked(obj);
+	return ret;
 }
 
 /**
@@ -710,13 +715,13 @@ drm_gem_object_release_handle(int id, vo
 	struct drm_gem_object *obj = ptr;
 	struct drm_device *dev = obj->dev;
 
+	if (dev->driver->gem_close_object)
+		dev->driver->gem_close_object(obj, file_priv);
+
 	if (drm_core_check_feature(dev, DRIVER_PRIME))
 		drm_gem_remove_prime_handles(obj, file_priv);
 	drm_vma_node_revoke(&obj->vma_node, file_priv->filp);
 
-	if (dev->driver->gem_close_object)
-		dev->driver->gem_close_object(obj, file_priv);
-
 	drm_gem_object_handle_unreference_unlocked(obj);
 
 	return 0;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/drm_ioc32.c linux-libre-4.4.107-gnu/drivers/gpu/drm/drm_ioc32.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/drm_ioc32.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/drm_ioc32.c	2017-12-20 04:05:01.000000000 -0500
@@ -1015,6 +1015,7 @@ static int compat_drm_wait_vblank(struct
 	return 0;
 }
 
+#if defined(CONFIG_X86) || defined(CONFIG_IA64)
 typedef struct drm_mode_fb_cmd232 {
 	u32 fb_id;
 	u32 width;
@@ -1071,6 +1072,7 @@ static int compat_drm_mode_addfb2(struct
 
 	return 0;
 }
+#endif
 
 static drm_ioctl_compat_t *drm_compat_ioctls[] = {
 	[DRM_IOCTL_NR(DRM_IOCTL_VERSION32)] = compat_drm_version,
@@ -1104,7 +1106,9 @@ static drm_ioctl_compat_t *drm_compat_io
 	[DRM_IOCTL_NR(DRM_IOCTL_UPDATE_DRAW32)] = compat_drm_update_draw,
 #endif
 	[DRM_IOCTL_NR(DRM_IOCTL_WAIT_VBLANK32)] = compat_drm_wait_vblank,
+#if defined(CONFIG_X86) || defined(CONFIG_IA64)
 	[DRM_IOCTL_NR(DRM_IOCTL_MODE_ADDFB232)] = compat_drm_mode_addfb2,
+#endif
 };
 
 /**
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/drm_irq.c linux-libre-4.4.107-gnu/drivers/gpu/drm/drm_irq.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/drm_irq.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/drm_irq.c	2017-12-20 04:05:01.000000000 -0500
@@ -221,6 +221,64 @@ static void drm_update_vblank_count(stru
 		diff = (flags & DRM_CALLED_FROM_VBLIRQ) != 0;
 	}
 
+	/*
+	 * Within a drm_vblank_pre_modeset - drm_vblank_post_modeset
+	 * interval? If so then vblank irqs keep running and it will likely
+	 * happen that the hardware vblank counter is not trustworthy as it
+	 * might reset at some point in that interval and vblank timestamps
+	 * are not trustworthy either in that interval. Iow. this can result
+	 * in a bogus diff >> 1 which must be avoided as it would cause
+	 * random large forward jumps of the software vblank counter.
+	 */
+	if (diff > 1 && (vblank->inmodeset & 0x2)) {
+		DRM_DEBUG_VBL("clamping vblank bump to 1 on crtc %u: diffr=%u"
+			      " due to pre-modeset.\n", pipe, diff);
+		diff = 1;
+	}
+
+	/*
+	 * FIMXE: Need to replace this hack with proper seqlocks.
+	 *
+	 * Restrict the bump of the software vblank counter to a safe maximum
+	 * value of +1 whenever there is the possibility that concurrent readers
+	 * of vblank timestamps could be active at the moment, as the current
+	 * implementation of the timestamp caching and updating is not safe
+	 * against concurrent readers for calls to store_vblank() with a bump
+	 * of anything but +1. A bump != 1 would very likely return corrupted
+	 * timestamps to userspace, because the same slot in the cache could
+	 * be concurrently written by store_vblank() and read by one of those
+	 * readers without the read-retry logic detecting the collision.
+	 *
+	 * Concurrent readers can exist when we are called from the
+	 * drm_vblank_off() or drm_vblank_on() functions and other non-vblank-
+	 * irq callers. However, all those calls to us are happening with the
+	 * vbl_lock locked to prevent drm_vblank_get(), so the vblank refcount
+	 * can't increase while we are executing. Therefore a zero refcount at
+	 * this point is safe for arbitrary counter bumps if we are called
+	 * outside vblank irq, a non-zero count is not 100% safe. Unfortunately
+	 * we must also accept a refcount of 1, as whenever we are called from
+	 * drm_vblank_get() -> drm_vblank_enable() the refcount will be 1 and
+	 * we must let that one pass through in order to not lose vblank counts
+	 * during vblank irq off - which would completely defeat the whole
+	 * point of this routine.
+	 *
+	 * Whenever we are called from vblank irq, we have to assume concurrent
+	 * readers exist or can show up any time during our execution, even if
+	 * the refcount is currently zero, as vblank irqs are usually only
+	 * enabled due to the presence of readers, and because when we are called
+	 * from vblank irq we can't hold the vbl_lock to protect us from sudden
+	 * bumps in vblank refcount. Therefore also restrict bumps to +1 when
+	 * called from vblank irq.
+	 */
+	if ((diff > 1) && (atomic_read(&vblank->refcount) > 1 ||
+	    (flags & DRM_CALLED_FROM_VBLIRQ))) {
+		DRM_DEBUG_VBL("clamping vblank bump to 1 on crtc %u: diffr=%u "
+			      "refcount %u, vblirq %u\n", pipe, diff,
+			      atomic_read(&vblank->refcount),
+			      (flags & DRM_CALLED_FROM_VBLIRQ) != 0);
+		diff = 1;
+	}
+
 	DRM_DEBUG_VBL("updating vblank count on crtc %u:"
 		      " current=%u, diff=%u, hw=%u hw_last=%u\n",
 		      pipe, vblank->count, diff, cur_vblank, vblank->last);
@@ -1313,7 +1371,13 @@ void drm_vblank_off(struct drm_device *d
 	spin_lock_irqsave(&dev->event_lock, irqflags);
 
 	spin_lock(&dev->vbl_lock);
-	vblank_disable_and_save(dev, pipe);
+	DRM_DEBUG_VBL("crtc %d, vblank enabled %d, inmodeset %d\n",
+		      pipe, vblank->enabled, vblank->inmodeset);
+
+	/* Avoid redundant vblank disables without previous drm_vblank_on(). */
+	if (drm_core_check_feature(dev, DRIVER_ATOMIC) || !vblank->inmodeset)
+		vblank_disable_and_save(dev, pipe);
+
 	wake_up(&vblank->queue);
 
 	/*
@@ -1415,6 +1479,9 @@ void drm_vblank_on(struct drm_device *de
 		return;
 
 	spin_lock_irqsave(&dev->vbl_lock, irqflags);
+	DRM_DEBUG_VBL("crtc %d, vblank enabled %d, inmodeset %d\n",
+		      pipe, vblank->enabled, vblank->inmodeset);
+
 	/* Drop our private "prevent drm_vblank_get" refcount */
 	if (vblank->inmodeset) {
 		atomic_dec(&vblank->refcount);
@@ -1427,8 +1494,7 @@ void drm_vblank_on(struct drm_device *de
 	 * re-enable interrupts if there are users left, or the
 	 * user wishes vblank interrupts to be enabled all the time.
 	 */
-	if (atomic_read(&vblank->refcount) != 0 ||
-	    (!dev->vblank_disable_immediate && drm_vblank_offdelay == 0))
+	if (atomic_read(&vblank->refcount) != 0 || drm_vblank_offdelay == 0)
 		WARN_ON(drm_vblank_enable(dev, pipe));
 	spin_unlock_irqrestore(&dev->vbl_lock, irqflags);
 }
@@ -1523,6 +1589,7 @@ void drm_vblank_post_modeset(struct drm_
 	if (vblank->inmodeset) {
 		spin_lock_irqsave(&dev->vbl_lock, irqflags);
 		dev->vblank_disable_allowed = true;
+		drm_reset_vblank_timestamp(dev, pipe);
 		spin_unlock_irqrestore(&dev->vbl_lock, irqflags);
 
 		if (vblank->inmodeset & 0x2)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/drm_mm.c linux-libre-4.4.107-gnu/drivers/gpu/drm/drm_mm.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/drm_mm.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/drm_mm.c	2017-12-20 04:05:01.000000000 -0500
@@ -262,14 +262,12 @@ static void drm_mm_insert_helper_range(s
 
 	BUG_ON(!hole_node->hole_follows || node->allocated);
 
-	if (adj_start < start)
-		adj_start = start;
-	if (adj_end > end)
-		adj_end = end;
-
 	if (mm->color_adjust)
 		mm->color_adjust(hole_node, color, &adj_start, &adj_end);
 
+	adj_start = max(adj_start, start);
+	adj_end = min(adj_end, end);
+
 	if (flags & DRM_MM_CREATE_TOP)
 		adj_start = adj_end - size;
 
@@ -475,17 +473,15 @@ static struct drm_mm_node *drm_mm_search
 			       flags & DRM_MM_SEARCH_BELOW) {
 		u64 hole_size = adj_end - adj_start;
 
-		if (adj_start < start)
-			adj_start = start;
-		if (adj_end > end)
-			adj_end = end;
-
 		if (mm->color_adjust) {
 			mm->color_adjust(entry, color, &adj_start, &adj_end);
 			if (adj_end <= adj_start)
 				continue;
 		}
 
+		adj_start = max(adj_start, start);
+		adj_end = min(adj_end, end);
+
 		if (!check_free_hole(adj_start, adj_end, size, alignment))
 			continue;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/drm_modes.c linux-libre-4.4.107-gnu/drivers/gpu/drm/drm_modes.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/drm_modes.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/drm_modes.c	2017-12-20 04:05:01.000000000 -0500
@@ -1401,6 +1401,13 @@ drm_mode_create_from_cmdline_mode(struct
 		return NULL;
 
 	mode->type |= DRM_MODE_TYPE_USERDEF;
+	/* fix up 1368x768: GFT/CVT can't express 1366 width due to alignment */
+	if (cmd->xres == 1366 && mode->hdisplay == 1368) {
+		mode->hdisplay = 1366;
+		mode->hsync_start--;
+		mode->hsync_end--;
+		drm_mode_set_name(mode);
+	}
 	drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V);
 	return mode;
 }
@@ -1487,6 +1494,8 @@ int drm_mode_convert_umode(struct drm_di
 	if (out->status != MODE_OK)
 		goto out;
 
+	drm_mode_set_crtcinfo(out, CRTC_INTERLACE_HALVE_V);
+
 	ret = 0;
 
 out:
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/drm_prime.c linux-libre-4.4.107-gnu/drivers/gpu/drm/drm_prime.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/drm_prime.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/drm_prime.c	2017-12-20 04:05:01.000000000 -0500
@@ -339,14 +339,17 @@ static const struct dma_buf_ops drm_gem_
  * using the PRIME helpers.
  */
 struct dma_buf *drm_gem_prime_export(struct drm_device *dev,
-				     struct drm_gem_object *obj, int flags)
+				     struct drm_gem_object *obj,
+				     int flags)
 {
-	DEFINE_DMA_BUF_EXPORT_INFO(exp_info);
-
-	exp_info.ops = &drm_gem_prime_dmabuf_ops;
-	exp_info.size = obj->size;
-	exp_info.flags = flags;
-	exp_info.priv = obj;
+	struct dma_buf_export_info exp_info = {
+		.exp_name = KBUILD_MODNAME, /* white lie for debug */
+		.owner = dev->driver->fops->owner,
+		.ops = &drm_gem_prime_dmabuf_ops,
+		.size = obj->size,
+		.flags = flags,
+		.priv = obj,
+	};
 
 	if (dev->driver->gem_prime_res_obj)
 		exp_info.resv = dev->driver->gem_prime_res_obj(obj);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/exynos/exynos5433_drm_decon.c linux-libre-4.4.107-gnu/drivers/gpu/drm/exynos/exynos5433_drm_decon.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/exynos/exynos5433_drm_decon.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/exynos/exynos5433_drm_decon.c	2017-12-20 04:05:01.000000000 -0500
@@ -180,6 +180,8 @@ static void decon_commit(struct exynos_d
 
 	/* enable output and display signal */
 	decon_set_bits(ctx, DECON_VIDCON0, VIDCON0_ENVID | VIDCON0_ENVID_F, ~0);
+
+	decon_set_bits(ctx, DECON_UPDATE, STANDALONE_UPDATE_F, ~0);
 }
 
 static void decon_win_set_pixfmt(struct decon_context *ctx, unsigned int win,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/exynos/exynos_drm_core.c linux-libre-4.4.107-gnu/drivers/gpu/drm/exynos/exynos_drm_core.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/exynos/exynos_drm_core.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/exynos/exynos_drm_core.c	2017-12-20 04:05:01.000000000 -0500
@@ -101,7 +101,7 @@ int exynos_drm_subdrv_open(struct drm_de
 	return 0;
 
 err:
-	list_for_each_entry_reverse(subdrv, &subdrv->list, list) {
+	list_for_each_entry_continue_reverse(subdrv, &exynos_drm_subdrv_list, list) {
 		if (subdrv->close)
 			subdrv->close(dev, subdrv->dev, file);
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/exynos/exynos_drm_gem.c linux-libre-4.4.107-gnu/drivers/gpu/drm/exynos/exynos_drm_gem.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/exynos/exynos_drm_gem.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/exynos/exynos_drm_gem.c	2017-12-20 04:05:01.000000000 -0500
@@ -245,6 +245,15 @@ struct exynos_drm_gem *exynos_drm_gem_cr
 	if (IS_ERR(exynos_gem))
 		return exynos_gem;
 
+	if (!is_drm_iommu_supported(dev) && (flags & EXYNOS_BO_NONCONTIG)) {
+		/*
+		 * when no IOMMU is available, all allocated buffers are
+		 * contiguous anyway, so drop EXYNOS_BO_NONCONTIG flag
+		 */
+		flags &= ~EXYNOS_BO_NONCONTIG;
+		DRM_WARN("Non-contiguous allocation is not supported without IOMMU, falling back to contiguous buffer\n");
+	}
+
 	/* set memory type and cache attribute from user side. */
 	exynos_gem->flags = flags;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/gma500/cdv_intel_dp.c linux-libre-4.4.107-gnu/drivers/gpu/drm/gma500/cdv_intel_dp.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/gma500/cdv_intel_dp.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/gma500/cdv_intel_dp.c	2017-12-20 04:05:01.000000000 -0500
@@ -220,7 +220,7 @@ i2c_dp_aux_prepare_bus(struct i2c_adapte
  * FIXME: This is the old dp aux helper, gma500 is the last driver that needs to
  * be ported over to the new helper code in drm_dp_helper.c like i915 or radeon.
  */
-static int __deprecated
+static int
 i2c_dp_aux_add_bus(struct i2c_adapter *adapter)
 {
 	int error;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/gma500/gem.c linux-libre-4.4.107-gnu/drivers/gpu/drm/gma500/gem.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/gma500/gem.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/gma500/gem.c	2017-12-20 04:05:01.000000000 -0500
@@ -130,7 +130,7 @@ int psb_gem_create(struct drm_file *file
 		return ret;
 	}
 	/* We have the initial and handle reference but need only one now */
-	drm_gem_object_unreference(&r->gem);
+	drm_gem_object_unreference_unlocked(&r->gem);
 	*handlep = handle;
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/gma500/mdfld_dsi_pkg_sender.c linux-libre-4.4.107-gnu/drivers/gpu/drm/gma500/mdfld_dsi_pkg_sender.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/gma500/mdfld_dsi_pkg_sender.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/gma500/mdfld_dsi_pkg_sender.c	2017-12-20 04:05:01.000000000 -0500
@@ -72,7 +72,7 @@ static const char *const dsi_errors[] =
 	"RX Prot Violation",
 	"HS Generic Write FIFO Full",
 	"LP Generic Write FIFO Full",
-	"Generic Read Data Avail"
+	"Generic Read Data Avail",
 	"Special Packet Sent",
 	"Tearing Effect",
 };
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/gma500/psb_drv.c linux-libre-4.4.107-gnu/drivers/gpu/drm/gma500/psb_drv.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/gma500/psb_drv.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/gma500/psb_drv.c	2017-12-20 04:05:01.000000000 -0500
@@ -484,6 +484,9 @@ static const struct file_operations psb_
 	.open = drm_open,
 	.release = drm_release,
 	.unlocked_ioctl = psb_unlocked_ioctl,
+#ifdef CONFIG_COMPAT
+	.compat_ioctl = drm_compat_ioctl,
+#endif
 	.mmap = drm_gem_mmap,
 	.poll = drm_poll,
 	.read = drm_read,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/gma500/psb_intel_lvds.c linux-libre-4.4.107-gnu/drivers/gpu/drm/gma500/psb_intel_lvds.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/gma500/psb_intel_lvds.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/gma500/psb_intel_lvds.c	2017-12-20 04:05:01.000000000 -0500
@@ -783,20 +783,23 @@ void psb_intel_lvds_init(struct drm_devi
 		if (scan->type & DRM_MODE_TYPE_PREFERRED) {
 			mode_dev->panel_fixed_mode =
 			    drm_mode_duplicate(dev, scan);
+			DRM_DEBUG_KMS("Using mode from DDC\n");
 			goto out;	/* FIXME: check for quirks */
 		}
 	}
 
 	/* Failed to get EDID, what about VBT? do we need this? */
-	if (mode_dev->vbt_mode)
+	if (dev_priv->lfp_lvds_vbt_mode) {
 		mode_dev->panel_fixed_mode =
-		    drm_mode_duplicate(dev, mode_dev->vbt_mode);
+			drm_mode_duplicate(dev, dev_priv->lfp_lvds_vbt_mode);
 
-	if (!mode_dev->panel_fixed_mode)
-		if (dev_priv->lfp_lvds_vbt_mode)
-			mode_dev->panel_fixed_mode =
-				drm_mode_duplicate(dev,
-					dev_priv->lfp_lvds_vbt_mode);
+		if (mode_dev->panel_fixed_mode) {
+			mode_dev->panel_fixed_mode->type |=
+				DRM_MODE_TYPE_PREFERRED;
+			DRM_DEBUG_KMS("Using mode from VBT\n");
+			goto out;
+		}
+	}
 
 	/*
 	 * If we didn't get EDID, try checking if the panel is already turned
@@ -813,6 +816,7 @@ void psb_intel_lvds_init(struct drm_devi
 		if (mode_dev->panel_fixed_mode) {
 			mode_dev->panel_fixed_mode->type |=
 			    DRM_MODE_TYPE_PREFERRED;
+			DRM_DEBUG_KMS("Using pre-programmed mode\n");
 			goto out;	/* FIXME: check for quirks */
 		}
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/i2c/adv7511.c linux-libre-4.4.107-gnu/drivers/gpu/drm/i2c/adv7511.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/i2c/adv7511.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/i2c/adv7511.c	2017-12-20 04:05:01.000000000 -0500
@@ -36,7 +36,10 @@ struct adv7511 {
 	bool edid_read;
 
 	wait_queue_head_t wq;
+	struct work_struct hpd_work;
+
 	struct drm_encoder *encoder;
+	struct drm_connector connector;
 
 	bool embedded_sync;
 	enum adv7511_sync_polarity vsync_polarity;
@@ -48,6 +51,10 @@ struct adv7511 {
 	struct gpio_desc *gpio_pd;
 };
 
+static const int edid_i2c_addr = 0x7e;
+static const int packet_i2c_addr = 0x70;
+static const int cec_i2c_addr = 0x78;
+
 static struct adv7511 *encoder_to_adv7511(struct drm_encoder *encoder)
 {
 	return to_encoder_slave(encoder)->slave_priv;
@@ -362,12 +369,19 @@ static void adv7511_power_on(struct adv7
 {
 	adv7511->current_edid_segment = -1;
 
-	regmap_write(adv7511->regmap, ADV7511_REG_INT(0),
-		     ADV7511_INT0_EDID_READY);
-	regmap_write(adv7511->regmap, ADV7511_REG_INT(1),
-		     ADV7511_INT1_DDC_ERROR);
 	regmap_update_bits(adv7511->regmap, ADV7511_REG_POWER,
 			   ADV7511_POWER_POWER_DOWN, 0);
+	if (adv7511->i2c_main->irq) {
+		/*
+		 * Documentation says the INT_ENABLE registers are reset in
+		 * POWER_DOWN mode. My 7511w preserved the bits, however.
+		 * Still, let's be safe and stick to the documentation.
+		 */
+		regmap_write(adv7511->regmap, ADV7511_REG_INT_ENABLE(0),
+			     ADV7511_INT0_EDID_READY);
+		regmap_write(adv7511->regmap, ADV7511_REG_INT_ENABLE(1),
+			     ADV7511_INT1_DDC_ERROR);
+	}
 
 	/*
 	 * Per spec it is allowed to pulse the HDP signal to indicate that the
@@ -422,7 +436,27 @@ static bool adv7511_hpd(struct adv7511 *
 	return false;
 }
 
-static int adv7511_irq_process(struct adv7511 *adv7511)
+static void adv7511_hpd_work(struct work_struct *work)
+{
+	struct adv7511 *adv7511 = container_of(work, struct adv7511, hpd_work);
+	enum drm_connector_status status;
+	unsigned int val;
+	int ret;
+	ret = regmap_read(adv7511->regmap, ADV7511_REG_STATUS, &val);
+	if (ret < 0)
+		status = connector_status_disconnected;
+	else if (val & ADV7511_STATUS_HPD)
+		status = connector_status_connected;
+	else
+		status = connector_status_disconnected;
+
+	if (adv7511->connector.status != status) {
+		adv7511->connector.status = status;
+		drm_kms_helper_hotplug_event(adv7511->connector.dev);
+	}
+}
+
+static int adv7511_irq_process(struct adv7511 *adv7511, bool process_hpd)
 {
 	unsigned int irq0, irq1;
 	int ret;
@@ -438,8 +472,8 @@ static int adv7511_irq_process(struct ad
 	regmap_write(adv7511->regmap, ADV7511_REG_INT(0), irq0);
 	regmap_write(adv7511->regmap, ADV7511_REG_INT(1), irq1);
 
-	if (irq0 & ADV7511_INT0_HDP && adv7511->encoder)
-		drm_helper_hpd_irq_event(adv7511->encoder->dev);
+	if (process_hpd && irq0 & ADV7511_INT0_HDP && adv7511->encoder)
+		schedule_work(&adv7511->hpd_work);
 
 	if (irq0 & ADV7511_INT0_EDID_READY || irq1 & ADV7511_INT1_DDC_ERROR) {
 		adv7511->edid_read = true;
@@ -456,7 +490,7 @@ static irqreturn_t adv7511_irq_handler(i
 	struct adv7511 *adv7511 = devid;
 	int ret;
 
-	ret = adv7511_irq_process(adv7511);
+	ret = adv7511_irq_process(adv7511, true);
 	return ret < 0 ? IRQ_NONE : IRQ_HANDLED;
 }
 
@@ -473,7 +507,7 @@ static int adv7511_wait_for_edid(struct
 				adv7511->edid_read, msecs_to_jiffies(timeout));
 	} else {
 		for (; timeout > 0; timeout -= 25) {
-			ret = adv7511_irq_process(adv7511);
+			ret = adv7511_irq_process(adv7511, false);
 			if (ret < 0)
 				break;
 
@@ -567,13 +601,18 @@ static int adv7511_get_modes(struct drm_
 
 	/* Reading the EDID only works if the device is powered */
 	if (!adv7511->powered) {
-		regmap_write(adv7511->regmap, ADV7511_REG_INT(0),
-			     ADV7511_INT0_EDID_READY);
-		regmap_write(adv7511->regmap, ADV7511_REG_INT(1),
-			     ADV7511_INT1_DDC_ERROR);
 		regmap_update_bits(adv7511->regmap, ADV7511_REG_POWER,
 				   ADV7511_POWER_POWER_DOWN, 0);
+		if (adv7511->i2c_main->irq) {
+			regmap_write(adv7511->regmap, ADV7511_REG_INT_ENABLE(0),
+				     ADV7511_INT0_EDID_READY);
+			regmap_write(adv7511->regmap, ADV7511_REG_INT_ENABLE(1),
+				     ADV7511_INT1_DDC_ERROR);
+		}
 		adv7511->current_edid_segment = -1;
+		/* Reset the EDID_I2C_ADDR register as it might be cleared */
+		regmap_write(adv7511->regmap, ADV7511_REG_EDID_I2C_ADDR,
+				edid_i2c_addr);
 	}
 
 	edid = drm_do_get_edid(connector, adv7511_get_edid_block, adv7511);
@@ -849,10 +888,6 @@ static int adv7511_parse_dt(struct devic
 	return 0;
 }
 
-static const int edid_i2c_addr = 0x7e;
-static const int packet_i2c_addr = 0x70;
-static const int cec_i2c_addr = 0x78;
-
 static int adv7511_probe(struct i2c_client *i2c, const struct i2c_device_id *id)
 {
 	struct adv7511_link_config link_config;
@@ -913,6 +948,8 @@ static int adv7511_probe(struct i2c_clie
 	if (!adv7511->i2c_edid)
 		return -ENOMEM;
 
+	INIT_WORK(&adv7511->hpd_work, adv7511_hpd_work);
+
 	if (i2c->irq) {
 		init_waitqueue_head(&adv7511->wq);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/i915/i915_dma.c linux-libre-4.4.107-gnu/drivers/gpu/drm/i915/i915_dma.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/i915/i915_dma.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/i915/i915_dma.c	2017-12-20 04:05:01.000000000 -0500
@@ -402,6 +402,8 @@ static int i915_load_modeset_init(struct
 	if (ret)
 		goto cleanup_gem_stolen;
 
+	intel_setup_gmbus(dev);
+
 	/* Important: The output setup functions called by modeset_init need
 	 * working irqs for e.g. gmbus and dp aux transfers. */
 	intel_modeset_init(dev);
@@ -451,6 +453,7 @@ cleanup_gem:
 cleanup_irq:
 	intel_guc_ucode_fini(dev);
 	drm_irq_uninstall(dev);
+	intel_teardown_gmbus(dev);
 cleanup_gem_stolen:
 	i915_gem_cleanup_stolen(dev);
 cleanup_vga_switcheroo:
@@ -1028,7 +1031,6 @@ int i915_driver_load(struct drm_device *
 
 	/* Try to make sure MCHBAR is enabled before poking at it */
 	intel_setup_mchbar(dev);
-	intel_setup_gmbus(dev);
 	intel_opregion_setup(dev);
 
 	i915_gem_load(dev);
@@ -1099,7 +1101,6 @@ out_gem_unload:
 	if (dev->pdev->msi_enabled)
 		pci_disable_msi(dev->pdev);
 
-	intel_teardown_gmbus(dev);
 	intel_teardown_mchbar(dev);
 	pm_qos_remove_request(&dev_priv->pm_qos);
 	destroy_workqueue(dev_priv->gpu_error.hangcheck_wq);
@@ -1198,7 +1199,6 @@ int i915_driver_unload(struct drm_device
 
 	intel_csr_ucode_fini(dev);
 
-	intel_teardown_gmbus(dev);
 	intel_teardown_mchbar(dev);
 
 	destroy_workqueue(dev_priv->hotplug.dp_wq);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/i915/i915_drv.c linux-libre-4.4.107-gnu/drivers/gpu/drm/i915/i915_drv.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/i915/i915_drv.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/i915/i915_drv.c	2017-12-20 04:05:01.000000000 -0500
@@ -531,7 +531,10 @@ void intel_detect_pch(struct drm_device
 				dev_priv->pch_type = PCH_SPT;
 				DRM_DEBUG_KMS("Found SunrisePoint LP PCH\n");
 				WARN_ON(!IS_SKYLAKE(dev));
-			} else if (id == INTEL_PCH_P2X_DEVICE_ID_TYPE) {
+			} else if ((id == INTEL_PCH_P2X_DEVICE_ID_TYPE) ||
+				   ((id == INTEL_PCH_QEMU_DEVICE_ID_TYPE) &&
+				    pch->subsystem_vendor == 0x1af4 &&
+				    pch->subsystem_device == 0x1100)) {
 				dev_priv->pch_type = intel_virt_detect_pch(dev);
 			} else
 				continue;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/i915/i915_drv.h linux-libre-4.4.107-gnu/drivers/gpu/drm/i915/i915_drv.h
--- linux-libre-4.4-gnu/drivers/gpu/drm/i915/i915_drv.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/i915/i915_drv.h	2017-12-20 04:05:01.000000000 -0500
@@ -1159,7 +1159,7 @@ struct intel_gen6_power_mgmt {
 	struct intel_rps_client semaphores, mmioflips;
 
 	/* manual wa residency calculations */
-	struct intel_rps_ei up_ei, down_ei;
+	struct intel_rps_ei ei;
 
 	/*
 	 * Protects RPS/RC6 register access and PCU communication.
@@ -2150,21 +2150,19 @@ struct drm_i915_gem_object {
 	/** Record of address bit 17 of each page at last unbind. */
 	unsigned long *bit_17;
 
-	union {
-		/** for phy allocated objects */
-		struct drm_dma_handle *phys_handle;
-
-		struct i915_gem_userptr {
-			uintptr_t ptr;
-			unsigned read_only :1;
-			unsigned workers :4;
+	struct i915_gem_userptr {
+		uintptr_t ptr;
+		unsigned read_only :1;
+		unsigned workers :4;
 #define I915_GEM_USERPTR_MAX_WORKERS 15
 
-			struct i915_mm_struct *mm;
-			struct i915_mmu_object *mmu_object;
-			struct work_struct *work;
-		} userptr;
-	};
+		struct i915_mm_struct *mm;
+		struct i915_mmu_object *mmu_object;
+		struct work_struct *work;
+	} userptr;
+
+	/** for phys allocated objects */
+	struct drm_dma_handle *phys_handle;
 };
 #define to_intel_bo(x) container_of(x, struct drm_i915_gem_object, base)
 
@@ -2614,6 +2612,7 @@ struct drm_i915_cmd_table {
 #define INTEL_PCH_SPT_DEVICE_ID_TYPE		0xA100
 #define INTEL_PCH_SPT_LP_DEVICE_ID_TYPE		0x9D00
 #define INTEL_PCH_P2X_DEVICE_ID_TYPE		0x7100
+#define INTEL_PCH_QEMU_DEVICE_ID_TYPE		0x2900 /* qemu q35 has 2918 */
 
 #define INTEL_PCH_TYPE(dev) (__I915__(dev)->pch_type)
 #define HAS_PCH_SPT(dev) (INTEL_PCH_TYPE(dev) == PCH_SPT)
@@ -3312,6 +3311,9 @@ static inline bool intel_gmbus_is_forced
 }
 extern void intel_i2c_reset(struct drm_device *dev);
 
+/* intel_bios.c */
+bool intel_bios_is_port_present(struct drm_i915_private *dev_priv, enum port port);
+
 /* intel_opregion.c */
 #ifdef CONFIG_ACPI
 extern int intel_opregion_setup(struct drm_device *dev);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/i915/i915_gem_context.c linux-libre-4.4.107-gnu/drivers/gpu/drm/i915/i915_gem_context.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/i915/i915_gem_context.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/i915/i915_gem_context.c	2017-12-20 04:05:01.000000000 -0500
@@ -340,6 +340,10 @@ void i915_gem_context_reset(struct drm_d
 			i915_gem_context_unreference(lctx);
 			ring->last_context = NULL;
 		}
+
+		/* Force the GPU state to be reinitialised on enabling */
+		if (ring->default_context)
+			ring->default_context->legacy_hw_ctx.initialized = false;
 	}
 }
 
@@ -708,7 +712,7 @@ static int do_switch(struct drm_i915_gem
 	if (ret)
 		goto unpin_out;
 
-	if (!to->legacy_hw_ctx.initialized) {
+	if (!to->legacy_hw_ctx.initialized || i915_gem_context_is_default(to)) {
 		hw_flags |= MI_RESTORE_INHIBIT;
 		/* NB: If we inhibit the restore, the context is not allowed to
 		 * die because future work may end up depending on valid address
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/i915/i915_gem_gtt.c linux-libre-4.4.107-gnu/drivers/gpu/drm/i915/i915_gem_gtt.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/i915/i915_gem_gtt.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/i915/i915_gem_gtt.c	2017-12-20 04:05:01.000000000 -0500
@@ -2747,6 +2747,7 @@ void i915_global_gtt_cleanup(struct drm_
 		struct i915_hw_ppgtt *ppgtt = dev_priv->mm.aliasing_ppgtt;
 
 		ppgtt->base.cleanup(&ppgtt->base);
+		kfree(ppgtt);
 	}
 
 	if (drm_mm_initialized(&vm->mm)) {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/i915/i915_gem_shrinker.c linux-libre-4.4.107-gnu/drivers/gpu/drm/i915/i915_gem_shrinker.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/i915/i915_gem_shrinker.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/i915/i915_gem_shrinker.c	2017-12-20 04:05:01.000000000 -0500
@@ -39,7 +39,7 @@ static bool mutex_is_locked_by(struct mu
 	if (!mutex_is_locked(mutex))
 		return false;
 
-#if defined(CONFIG_SMP) || defined(CONFIG_DEBUG_MUTEXES)
+#if defined(CONFIG_DEBUG_MUTEXES) || defined(CONFIG_MUTEX_SPIN_ON_OWNER)
 	return mutex->owner == task;
 #else
 	/* Since UP may be pre-empted, we cannot assume that we own the lock */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/i915/i915_gem_stolen.c linux-libre-4.4.107-gnu/drivers/gpu/drm/i915/i915_gem_stolen.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/i915/i915_gem_stolen.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/i915/i915_gem_stolen.c	2017-12-20 04:05:01.000000000 -0500
@@ -108,17 +108,28 @@ static unsigned long i915_stolen_to_phys
 		pci_read_config_dword(dev->pdev, 0x5c, &base);
 		base &= ~((1<<20) - 1);
 	} else if (IS_I865G(dev)) {
+		u32 tseg_size = 0;
 		u16 toud = 0;
+		u8 tmp;
+
+		pci_bus_read_config_byte(dev->pdev->bus, PCI_DEVFN(0, 0),
+					 I845_ESMRAMC, &tmp);
+
+		if (tmp & TSEG_ENABLE) {
+			switch (tmp & I845_TSEG_SIZE_MASK) {
+			case I845_TSEG_SIZE_512K:
+				tseg_size = KB(512);
+				break;
+			case I845_TSEG_SIZE_1M:
+				tseg_size = MB(1);
+				break;
+			}
+		}
 
-		/*
-		 * FIXME is the graphics stolen memory region
-		 * always at TOUD? Ie. is it always the last
-		 * one to be allocated by the BIOS?
-		 */
 		pci_bus_read_config_word(dev->pdev->bus, PCI_DEVFN(0, 0),
 					 I865_TOUD, &toud);
 
-		base = toud << 16;
+		base = (toud << 16) + tseg_size;
 	} else if (IS_I85X(dev)) {
 		u32 tseg_size = 0;
 		u32 tom;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/i915/i915_irq.c linux-libre-4.4.107-gnu/drivers/gpu/drm/i915/i915_irq.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/i915/i915_irq.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/i915/i915_irq.c	2017-12-20 04:05:01.000000000 -0500
@@ -994,68 +994,51 @@ static void vlv_c0_read(struct drm_i915_
 	ei->media_c0 = I915_READ(VLV_MEDIA_C0_COUNT);
 }
 
-static bool vlv_c0_above(struct drm_i915_private *dev_priv,
-			 const struct intel_rps_ei *old,
-			 const struct intel_rps_ei *now,
-			 int threshold)
-{
-	u64 time, c0;
-	unsigned int mul = 100;
-
-	if (old->cz_clock == 0)
-		return false;
-
-	if (I915_READ(VLV_COUNTER_CONTROL) & VLV_COUNT_RANGE_HIGH)
-		mul <<= 8;
-
-	time = now->cz_clock - old->cz_clock;
-	time *= threshold * dev_priv->czclk_freq;
-
-	/* Workload can be split between render + media, e.g. SwapBuffers
-	 * being blitted in X after being rendered in mesa. To account for
-	 * this we need to combine both engines into our activity counter.
-	 */
-	c0 = now->render_c0 - old->render_c0;
-	c0 += now->media_c0 - old->media_c0;
-	c0 *= mul * VLV_CZ_CLOCK_TO_MILLI_SEC;
-
-	return c0 >= time;
-}
-
 void gen6_rps_reset_ei(struct drm_i915_private *dev_priv)
 {
-	vlv_c0_read(dev_priv, &dev_priv->rps.down_ei);
-	dev_priv->rps.up_ei = dev_priv->rps.down_ei;
+	memset(&dev_priv->rps.ei, 0, sizeof(dev_priv->rps.ei));
 }
 
 static u32 vlv_wa_c0_ei(struct drm_i915_private *dev_priv, u32 pm_iir)
 {
+	const struct intel_rps_ei *prev = &dev_priv->rps.ei;
 	struct intel_rps_ei now;
 	u32 events = 0;
 
-	if ((pm_iir & (GEN6_PM_RP_DOWN_EI_EXPIRED | GEN6_PM_RP_UP_EI_EXPIRED)) == 0)
+	if ((pm_iir & GEN6_PM_RP_UP_EI_EXPIRED) == 0)
 		return 0;
 
 	vlv_c0_read(dev_priv, &now);
 	if (now.cz_clock == 0)
 		return 0;
 
-	if (pm_iir & GEN6_PM_RP_DOWN_EI_EXPIRED) {
-		if (!vlv_c0_above(dev_priv,
-				  &dev_priv->rps.down_ei, &now,
-				  dev_priv->rps.down_threshold))
-			events |= GEN6_PM_RP_DOWN_THRESHOLD;
-		dev_priv->rps.down_ei = now;
-	}
+	if (prev->cz_clock) {
+		u64 time, c0;
+		unsigned int mul;
 
-	if (pm_iir & GEN6_PM_RP_UP_EI_EXPIRED) {
-		if (vlv_c0_above(dev_priv,
-				 &dev_priv->rps.up_ei, &now,
-				 dev_priv->rps.up_threshold))
-			events |= GEN6_PM_RP_UP_THRESHOLD;
-		dev_priv->rps.up_ei = now;
+		mul = VLV_CZ_CLOCK_TO_MILLI_SEC * 100; /* scale to threshold% */
+		if (I915_READ(VLV_COUNTER_CONTROL) & VLV_COUNT_RANGE_HIGH)
+			mul <<= 8;
+
+		time = now.cz_clock - prev->cz_clock;
+		time *= dev_priv->czclk_freq;
+
+		/* Workload can be split between render + media,
+		 * e.g. SwapBuffers being blitted in X after being rendered in
+		 * mesa. To account for this we need to combine both engines
+		 * into our activity counter.
+		 */
+		c0 = now.render_c0 - prev->render_c0;
+		c0 += now.media_c0 - prev->media_c0;
+		c0 *= mul;
+
+		if (c0 > time * dev_priv->rps.up_threshold)
+			events = GEN6_PM_RP_UP_THRESHOLD;
+		else if (c0 < time * dev_priv->rps.down_threshold)
+			events = GEN6_PM_RP_DOWN_THRESHOLD;
 	}
 
+	dev_priv->rps.ei = now;
 	return events;
 }
 
@@ -2354,9 +2337,13 @@ static irqreturn_t gen8_irq_handler(int
 				spt_irq_handler(dev, pch_iir);
 			else
 				cpt_irq_handler(dev, pch_iir);
-		} else
-			DRM_ERROR("The master control interrupt lied (SDE)!\n");
-
+		} else {
+			/*
+			 * Like on previous PCH there seems to be something
+			 * fishy going on with forwarding PCH interrupts.
+			 */
+			DRM_DEBUG_DRIVER("The master control interrupt lied (SDE)!\n");
+		}
 	}
 
 	I915_WRITE_FW(GEN8_MASTER_IRQ, GEN8_MASTER_IRQ_CONTROL);
@@ -4386,7 +4373,7 @@ void intel_irq_init(struct drm_i915_priv
 	/* Let's track the enabled rps events */
 	if (IS_VALLEYVIEW(dev_priv) && !IS_CHERRYVIEW(dev_priv))
 		/* WaGsvRC0ResidencyMethod:vlv */
-		dev_priv->pm_rps_events = GEN6_PM_RP_DOWN_EI_EXPIRED | GEN6_PM_RP_UP_EI_EXPIRED;
+		dev_priv->pm_rps_events = GEN6_PM_RP_UP_EI_EXPIRED;
 	else
 		dev_priv->pm_rps_events = GEN6_PM_RPS_EVENTS;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/i915/i915_reg.h linux-libre-4.4.107-gnu/drivers/gpu/drm/i915/i915_reg.h
--- linux-libre-4.4-gnu/drivers/gpu/drm/i915/i915_reg.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/i915/i915_reg.h	2017-12-20 04:05:01.000000000 -0500
@@ -2838,7 +2838,14 @@ enum skl_disp_power_wells {
 #define GEN6_RP_STATE_CAP	(MCHBAR_MIRROR_BASE_SNB + 0x5998)
 #define BXT_RP_STATE_CAP        0x138170
 
-#define INTERVAL_1_28_US(us)	(((us) * 100) >> 7)
+/*
+ * Make these a multiple of magic 25 to avoid SNB (eg. Dell XPS
+ * 8300) freezing up around GPU hangs. Looks as if even
+ * scheduling/timer interrupts start misbehaving if the RPS
+ * EI/thresholds are "bad", leading to a very sluggish or even
+ * frozen machine.
+ */
+#define INTERVAL_1_28_US(us)	roundup(((us) * 100) >> 7, 25)
 #define INTERVAL_1_33_US(us)	(((us) * 3)   >> 2)
 #define INTERVAL_0_833_US(us)	(((us) * 6) / 5)
 #define GT_INTERVAL_FROM_US(dev_priv, us) (IS_GEN9(dev_priv) ? \
@@ -3233,19 +3240,20 @@ enum skl_disp_power_wells {
 
 #define PORT_HOTPLUG_STAT	(dev_priv->info.display_mmio_offset + 0x61114)
 /*
- * HDMI/DP bits are gen4+
+ * HDMI/DP bits are g4x+
  *
  * WARNING: Bspec for hpd status bits on gen4 seems to be completely confused.
  * Please check the detailed lore in the commit message for for experimental
  * evidence.
  */
-#define   PORTD_HOTPLUG_LIVE_STATUS_G4X		(1 << 29)
+/* Bspec says GM45 should match G4X/VLV/CHV, but reality disagrees */
+#define   PORTD_HOTPLUG_LIVE_STATUS_GM45	(1 << 29)
+#define   PORTC_HOTPLUG_LIVE_STATUS_GM45	(1 << 28)
+#define   PORTB_HOTPLUG_LIVE_STATUS_GM45	(1 << 27)
+/* G4X/VLV/CHV DP/HDMI bits again match Bspec */
+#define   PORTD_HOTPLUG_LIVE_STATUS_G4X		(1 << 27)
 #define   PORTC_HOTPLUG_LIVE_STATUS_G4X		(1 << 28)
-#define   PORTB_HOTPLUG_LIVE_STATUS_G4X		(1 << 27)
-/* VLV DP/HDMI bits again match Bspec */
-#define   PORTD_HOTPLUG_LIVE_STATUS_VLV		(1 << 27)
-#define   PORTC_HOTPLUG_LIVE_STATUS_VLV		(1 << 28)
-#define   PORTB_HOTPLUG_LIVE_STATUS_VLV		(1 << 29)
+#define   PORTB_HOTPLUG_LIVE_STATUS_G4X		(1 << 29)
 #define   PORTD_HOTPLUG_INT_STATUS		(3 << 21)
 #define   PORTD_HOTPLUG_INT_LONG_PULSE		(2 << 21)
 #define   PORTD_HOTPLUG_INT_SHORT_PULSE		(1 << 21)
@@ -7350,6 +7358,8 @@ enum skl_disp_power_wells {
 #define  TRANS_CLK_SEL_DISABLED		(0x0<<29)
 #define  TRANS_CLK_SEL_PORT(x)		(((x)+1)<<29)
 
+#define CDCLK_FREQ			0x46200
+
 #define TRANSA_MSA_MISC			0x60410
 #define TRANSB_MSA_MISC			0x61410
 #define TRANSC_MSA_MISC			0x62410
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/i915/intel_bios.c linux-libre-4.4.107-gnu/drivers/gpu/drm/i915/intel_bios.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/i915/intel_bios.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/i915/intel_bios.c	2017-12-20 04:05:01.000000000 -0500
@@ -957,6 +957,13 @@ static void parse_ddi_port(struct drm_i9
 	is_hdmi = is_dvi && (child->common.device_type & DEVICE_TYPE_NOT_HDMI_OUTPUT) == 0;
 	is_edp = is_dp && (child->common.device_type & DEVICE_TYPE_INTERNAL_CONNECTOR);
 
+	if (port == PORT_A && is_dvi) {
+		DRM_DEBUG_KMS("VBT claims port A supports DVI%s, ignoring\n",
+			      is_hdmi ? "/HDMI" : "");
+		is_dvi = false;
+		is_hdmi = false;
+	}
+
 	info->supports_dvi = is_dvi;
 	info->supports_hdmi = is_hdmi;
 	info->supports_dp = is_dp;
@@ -1351,3 +1358,42 @@ intel_parse_bios(struct drm_device *dev)
 
 	return 0;
 }
+
+/**
+ * intel_bios_is_port_present - is the specified digital port present
+ * @dev_priv:	i915 device instance
+ * @port:	port to check
+ *
+ * Return true if the device in %port is present.
+ */
+bool intel_bios_is_port_present(struct drm_i915_private *dev_priv, enum port port)
+{
+	static const struct {
+		u16 dp, hdmi;
+	} port_mapping[] = {
+		[PORT_B] = { DVO_PORT_DPB, DVO_PORT_HDMIB, },
+		[PORT_C] = { DVO_PORT_DPC, DVO_PORT_HDMIC, },
+		[PORT_D] = { DVO_PORT_DPD, DVO_PORT_HDMID, },
+		[PORT_E] = { DVO_PORT_DPE, DVO_PORT_HDMIE, },
+	};
+	int i;
+
+	/* FIXME maybe deal with port A as well? */
+	if (WARN_ON(port == PORT_A) || port >= ARRAY_SIZE(port_mapping))
+		return false;
+
+	if (!dev_priv->vbt.child_dev_num)
+		return false;
+
+	for (i = 0; i < dev_priv->vbt.child_dev_num; i++) {
+		const union child_device_config *p_child =
+			&dev_priv->vbt.child_dev[i];
+		if ((p_child->common.dvo_port == port_mapping[port].dp ||
+		     p_child->common.dvo_port == port_mapping[port].hdmi) &&
+		    (p_child->common.device_type & (DEVICE_TYPE_TMDS_DVI_SIGNALING |
+						    DEVICE_TYPE_DISPLAYPORT_OUTPUT)))
+			return true;
+	}
+
+	return false;
+}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/i915/intel_crt.c linux-libre-4.4.107-gnu/drivers/gpu/drm/i915/intel_crt.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/i915/intel_crt.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/i915/intel_crt.c	2017-12-20 04:05:01.000000000 -0500
@@ -248,8 +248,14 @@ static bool intel_crt_compute_config(str
 		pipe_config->has_pch_encoder = true;
 
 	/* LPT FDI RX only supports 8bpc. */
-	if (HAS_PCH_LPT(dev))
+	if (HAS_PCH_LPT(dev)) {
+		if (pipe_config->bw_constrained && pipe_config->pipe_bpp < 24) {
+			DRM_DEBUG_KMS("LPT only supports 24bpp\n");
+			return false;
+		}
+
 		pipe_config->pipe_bpp = 24;
+	}
 
 	/* FDI must always be 2.7 GHz */
 	if (HAS_DDI(dev)) {
@@ -439,6 +445,7 @@ static bool intel_crt_detect_ddc(struct
 	struct drm_i915_private *dev_priv = crt->base.base.dev->dev_private;
 	struct edid *edid;
 	struct i2c_adapter *i2c;
+	bool ret = false;
 
 	BUG_ON(crt->base.type != INTEL_OUTPUT_ANALOG);
 
@@ -455,17 +462,17 @@ static bool intel_crt_detect_ddc(struct
 		 */
 		if (!is_digital) {
 			DRM_DEBUG_KMS("CRT detected via DDC:0x50 [EDID]\n");
-			return true;
+			ret = true;
+		} else {
+			DRM_DEBUG_KMS("CRT not detected via DDC:0x50 [EDID reports a digital panel]\n");
 		}
-
-		DRM_DEBUG_KMS("CRT not detected via DDC:0x50 [EDID reports a digital panel]\n");
 	} else {
 		DRM_DEBUG_KMS("CRT not detected via DDC:0x50 [no valid EDID found]\n");
 	}
 
 	kfree(edid);
 
-	return false;
+	return ret;
 }
 
 static enum drm_connector_status
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/i915/intel_csr.c linux-libre-4.4.107-gnu/drivers/gpu/drm/i915/intel_csr.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/i915/intel_csr.c	2016-01-10 20:56:47.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/i915/intel_csr.c	2017-12-20 11:10:39.000000000 -0500
@@ -179,7 +179,8 @@ struct stepping_info {
 static const struct stepping_info skl_stepping_info[] = {
 		{'A', '0'}, {'B', '0'}, {'C', '0'},
 		{'D', '0'}, {'E', '0'}, {'F', '0'},
-		{'G', '0'}, {'H', '0'}, {'I', '0'}
+		{'G', '0'}, {'H', '0'}, {'I', '0'},
+		{'J', '0'}, {'K', '0'}
 };
 
 static struct stepping_info bxt_stepping_info[] = {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/i915/intel_ddi.c linux-libre-4.4.107-gnu/drivers/gpu/drm/i915/intel_ddi.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/i915/intel_ddi.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/i915/intel_ddi.c	2017-12-20 04:05:01.000000000 -0500
@@ -464,9 +464,17 @@ static void intel_prepare_ddi_buffers(st
 	} else if (IS_BROADWELL(dev)) {
 		ddi_translations_fdi = bdw_ddi_translations_fdi;
 		ddi_translations_dp = bdw_ddi_translations_dp;
-		ddi_translations_edp = bdw_ddi_translations_edp;
+
+		if (dev_priv->edp_low_vswing) {
+			ddi_translations_edp = bdw_ddi_translations_edp;
+			n_edp_entries = ARRAY_SIZE(bdw_ddi_translations_edp);
+		} else {
+			ddi_translations_edp = bdw_ddi_translations_dp;
+			n_edp_entries = ARRAY_SIZE(bdw_ddi_translations_dp);
+		}
+
 		ddi_translations_hdmi = bdw_ddi_translations_hdmi;
-		n_edp_entries = ARRAY_SIZE(bdw_ddi_translations_edp);
+
 		n_dp_entries = ARRAY_SIZE(bdw_ddi_translations_dp);
 		n_hdmi_entries = ARRAY_SIZE(bdw_ddi_translations_hdmi);
 		hdmi_default_entry = 7;
@@ -1582,7 +1590,8 @@ skl_ddi_pll_select(struct intel_crtc *in
 			 DPLL_CFGCR2_KDIV(wrpll_params.kdiv) |
 			 DPLL_CFGCR2_PDIV(wrpll_params.pdiv) |
 			 wrpll_params.central_freq;
-	} else if (intel_encoder->type == INTEL_OUTPUT_DISPLAYPORT) {
+	} else if (intel_encoder->type == INTEL_OUTPUT_DISPLAYPORT ||
+		   intel_encoder->type == INTEL_OUTPUT_DP_MST) {
 		switch (crtc_state->port_clock / 2) {
 		case 81000:
 			ctrl1 |= DPLL_CTRL1_LINK_RATE(DPLL_CTRL1_LINK_RATE_810, 0);
@@ -3187,12 +3196,6 @@ void intel_ddi_get_config(struct intel_e
 	intel_ddi_clock_get(encoder, pipe_config);
 }
 
-static void intel_ddi_destroy(struct drm_encoder *encoder)
-{
-	/* HDMI has nothing special to destroy, so we can go with this. */
-	intel_dp_encoder_destroy(encoder);
-}
-
 static bool intel_ddi_compute_config(struct intel_encoder *encoder,
 				     struct intel_crtc_state *pipe_config)
 {
@@ -3211,7 +3214,8 @@ static bool intel_ddi_compute_config(str
 }
 
 static const struct drm_encoder_funcs intel_ddi_funcs = {
-	.destroy = intel_ddi_destroy,
+	.reset = intel_dp_encoder_reset,
+	.destroy = intel_dp_encoder_destroy,
 };
 
 static struct intel_connector *
@@ -3283,6 +3287,7 @@ void intel_ddi_init(struct drm_device *d
 	intel_encoder->post_disable = intel_ddi_post_disable;
 	intel_encoder->get_hw_state = intel_ddi_get_hw_state;
 	intel_encoder->get_config = intel_ddi_get_config;
+	intel_encoder->suspend = intel_dp_encoder_suspend;
 
 	intel_dig_port->port = port;
 	intel_dig_port->saved_port_bits = I915_READ(DDI_BUF_CTL(port)) &
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/i915/intel_display.c linux-libre-4.4.107-gnu/drivers/gpu/drm/i915/intel_display.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/i915/intel_display.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/i915/intel_display.c	2017-12-20 04:05:01.000000000 -0500
@@ -2950,13 +2950,13 @@ u32 intel_fb_stride_alignment(struct drm
 	}
 }
 
-unsigned long intel_plane_obj_offset(struct intel_plane *intel_plane,
-				     struct drm_i915_gem_object *obj,
-				     unsigned int plane)
+u32 intel_plane_obj_offset(struct intel_plane *intel_plane,
+			   struct drm_i915_gem_object *obj,
+			   unsigned int plane)
 {
 	const struct i915_ggtt_view *view = &i915_ggtt_view_normal;
 	struct i915_vma *vma;
-	unsigned char *offset;
+	u64 offset;
 
 	if (intel_rotation_90_or_270(intel_plane->base.state->rotation))
 		view = &i915_ggtt_view_rotated;
@@ -2966,14 +2966,16 @@ unsigned long intel_plane_obj_offset(str
 		view->type))
 		return -1;
 
-	offset = (unsigned char *)vma->node.start;
+	offset = vma->node.start;
 
 	if (plane == 1) {
 		offset += vma->ggtt_view.rotation_info.uv_start_page *
 			  PAGE_SIZE;
 	}
 
-	return (unsigned long)offset;
+	WARN_ON(upper_32_bits(offset));
+
+	return lower_32_bits(offset);
 }
 
 static void skl_detach_scaler(struct intel_crtc *intel_crtc, int id)
@@ -3099,7 +3101,7 @@ static void skylake_update_primary_plane
 	u32 tile_height, plane_offset, plane_size;
 	unsigned int rotation;
 	int x_offset, y_offset;
-	unsigned long surf_addr;
+	u32 surf_addr;
 	struct intel_crtc_state *crtc_state = intel_crtc->config;
 	struct intel_plane_state *plane_state;
 	int src_x = 0, src_y = 0, src_w = 0, src_h = 0;
@@ -3946,10 +3948,10 @@ static void page_flip_completed(struct i
 	drm_crtc_vblank_put(&intel_crtc->base);
 
 	wake_up_all(&dev_priv->pending_flip_queue);
-	queue_work(dev_priv->wq, &work->work);
-
 	trace_i915_flip_complete(intel_crtc->plane,
 				 work->pending_flip_obj);
+
+	queue_work(dev_priv->wq, &work->work);
 }
 
 void intel_crtc_wait_for_pending_flips(struct drm_crtc *crtc)
@@ -4447,7 +4449,7 @@ int skl_update_scaler_crtc(struct intel_
 		      intel_crtc->base.base.id, intel_crtc->pipe, SKL_CRTC_INDEX);
 
 	return skl_update_scaler(state, !state->base.active, SKL_CRTC_INDEX,
-		&state->scaler_state.scaler_id, DRM_ROTATE_0,
+		&state->scaler_state.scaler_id, BIT(DRM_ROTATE_0),
 		state->pipe_src_w, state->pipe_src_h,
 		adjusted_mode->crtc_hdisplay, adjusted_mode->crtc_vdisplay);
 }
@@ -8228,12 +8230,14 @@ static void ironlake_init_pch_refclk(str
 {
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct intel_encoder *encoder;
+	int i;
 	u32 val, final;
 	bool has_lvds = false;
 	bool has_cpu_edp = false;
 	bool has_panel = false;
 	bool has_ck505 = false;
 	bool can_ssc = false;
+	bool using_ssc_source = false;
 
 	/* We need to take the global config into account */
 	for_each_intel_encoder(dev, encoder) {
@@ -8260,8 +8264,22 @@ static void ironlake_init_pch_refclk(str
 		can_ssc = true;
 	}
 
-	DRM_DEBUG_KMS("has_panel %d has_lvds %d has_ck505 %d\n",
-		      has_panel, has_lvds, has_ck505);
+	/* Check if any DPLLs are using the SSC source */
+	for (i = 0; i < dev_priv->num_shared_dpll; i++) {
+		u32 temp = I915_READ(PCH_DPLL(i));
+
+		if (!(temp & DPLL_VCO_ENABLE))
+			continue;
+
+		if ((temp & PLL_REF_INPUT_MASK) ==
+		    PLLB_REF_INPUT_SPREADSPECTRUMIN) {
+			using_ssc_source = true;
+			break;
+		}
+	}
+
+	DRM_DEBUG_KMS("has_panel %d has_lvds %d has_ck505 %d using_ssc_source %d\n",
+		      has_panel, has_lvds, has_ck505, using_ssc_source);
 
 	/* Ironlake: try to setup display ref clock before DPLL
 	 * enabling. This is only under driver's control after
@@ -8298,9 +8316,9 @@ static void ironlake_init_pch_refclk(str
 				final |= DREF_CPU_SOURCE_OUTPUT_NONSPREAD;
 		} else
 			final |= DREF_CPU_SOURCE_OUTPUT_DISABLE;
-	} else {
-		final |= DREF_SSC_SOURCE_DISABLE;
-		final |= DREF_CPU_SOURCE_OUTPUT_DISABLE;
+	} else if (using_ssc_source) {
+		final |= DREF_SSC_SOURCE_ENABLE;
+		final |= DREF_SSC1_ENABLE;
 	}
 
 	if (final == val)
@@ -8346,7 +8364,7 @@ static void ironlake_init_pch_refclk(str
 		POSTING_READ(PCH_DREF_CONTROL);
 		udelay(200);
 	} else {
-		DRM_DEBUG_KMS("Disabling SSC entirely\n");
+		DRM_DEBUG_KMS("Disabling CPU source output\n");
 
 		val &= ~DREF_CPU_SOURCE_OUTPUT_MASK;
 
@@ -8357,16 +8375,20 @@ static void ironlake_init_pch_refclk(str
 		POSTING_READ(PCH_DREF_CONTROL);
 		udelay(200);
 
-		/* Turn off the SSC source */
-		val &= ~DREF_SSC_SOURCE_MASK;
-		val |= DREF_SSC_SOURCE_DISABLE;
+		if (!using_ssc_source) {
+			DRM_DEBUG_KMS("Disabling SSC source\n");
 
-		/* Turn off SSC1 */
-		val &= ~DREF_SSC1_ENABLE;
+			/* Turn off the SSC source */
+			val &= ~DREF_SSC_SOURCE_MASK;
+			val |= DREF_SSC_SOURCE_DISABLE;
 
-		I915_WRITE(PCH_DREF_CONTROL, val);
-		POSTING_READ(PCH_DREF_CONTROL);
-		udelay(200);
+			/* Turn off SSC1 */
+			val &= ~DREF_SSC1_ENABLE;
+
+			I915_WRITE(PCH_DREF_CONTROL, val);
+			POSTING_READ(PCH_DREF_CONTROL);
+			udelay(200);
+		}
 	}
 
 	BUG_ON(val != final);
@@ -9669,6 +9691,8 @@ static void broadwell_set_cdclk(struct d
 	sandybridge_pcode_write(dev_priv, HSW_PCODE_DE_WRITE_FREQ_REQ, data);
 	mutex_unlock(&dev_priv->rps.hw_lock);
 
+	I915_WRITE(CDCLK_FREQ, DIV_ROUND_CLOSEST(cdclk, 1000) - 1);
+
 	intel_update_cdclk(dev);
 
 	WARN(cdclk != dev_priv->cdclk_freq,
@@ -13537,11 +13561,12 @@ intel_check_primary_plane(struct drm_pla
 	int max_scale = DRM_PLANE_HELPER_NO_SCALING;
 	bool can_position = false;
 
-	/* use scaler when colorkey is not required */
-	if (INTEL_INFO(plane->dev)->gen >= 9 &&
-	    state->ckey.flags == I915_SET_COLORKEY_NONE) {
-		min_scale = 1;
-		max_scale = skl_max_scale(to_intel_crtc(crtc), crtc_state);
+	if (INTEL_INFO(plane->dev)->gen >= 9) {
+		/* use scaler when colorkey is not required */
+		if (state->ckey.flags == I915_SET_COLORKEY_NONE) {
+			min_scale = 1;
+			max_scale = skl_max_scale(to_intel_crtc(crtc), crtc_state);
+		}
 		can_position = true;
 	}
 
@@ -14137,6 +14162,8 @@ static void intel_setup_outputs(struct d
 		if (I915_READ(PCH_DP_D) & DP_DETECTED)
 			intel_dp_init(dev, PCH_DP_D, PORT_D);
 	} else if (IS_VALLEYVIEW(dev)) {
+		bool has_edp, has_port;
+
 		/*
 		 * The DP_DETECTED bit is the latched state of the DDC
 		 * SDA pin at boot. However since eDP doesn't require DDC
@@ -14145,27 +14172,37 @@ static void intel_setup_outputs(struct d
 		 * Thus we can't rely on the DP_DETECTED bit alone to detect
 		 * eDP ports. Consult the VBT as well as DP_DETECTED to
 		 * detect eDP ports.
+		 *
+		 * Sadly the straps seem to be missing sometimes even for HDMI
+		 * ports (eg. on Voyo V3 - CHT x7-Z8700), so check both strap
+		 * and VBT for the presence of the port. Additionally we can't
+		 * trust the port type the VBT declares as we've seen at least
+		 * HDMI ports that the VBT claim are DP or eDP.
 		 */
-		if (I915_READ(VLV_HDMIB) & SDVO_DETECTED &&
-		    !intel_dp_is_edp(dev, PORT_B))
+		has_edp = intel_dp_is_edp(dev, PORT_B);
+		has_port = intel_bios_is_port_present(dev_priv, PORT_B);
+		if (I915_READ(VLV_DP_B) & DP_DETECTED || has_port)
+			has_edp &= intel_dp_init(dev, VLV_DP_B, PORT_B);
+		if ((I915_READ(VLV_HDMIB) & SDVO_DETECTED || has_port) && !has_edp)
 			intel_hdmi_init(dev, VLV_HDMIB, PORT_B);
-		if (I915_READ(VLV_DP_B) & DP_DETECTED ||
-		    intel_dp_is_edp(dev, PORT_B))
-			intel_dp_init(dev, VLV_DP_B, PORT_B);
 
-		if (I915_READ(VLV_HDMIC) & SDVO_DETECTED &&
-		    !intel_dp_is_edp(dev, PORT_C))
+		has_edp = intel_dp_is_edp(dev, PORT_C);
+		has_port = intel_bios_is_port_present(dev_priv, PORT_C);
+		if (I915_READ(VLV_DP_C) & DP_DETECTED || has_port)
+			has_edp &= intel_dp_init(dev, VLV_DP_C, PORT_C);
+		if ((I915_READ(VLV_HDMIC) & SDVO_DETECTED || has_port) && !has_edp)
 			intel_hdmi_init(dev, VLV_HDMIC, PORT_C);
-		if (I915_READ(VLV_DP_C) & DP_DETECTED ||
-		    intel_dp_is_edp(dev, PORT_C))
-			intel_dp_init(dev, VLV_DP_C, PORT_C);
 
 		if (IS_CHERRYVIEW(dev)) {
-			/* eDP not supported on port D, so don't check VBT */
-			if (I915_READ(CHV_HDMID) & SDVO_DETECTED)
-				intel_hdmi_init(dev, CHV_HDMID, PORT_D);
-			if (I915_READ(CHV_DP_D) & DP_DETECTED)
+			/*
+			 * eDP not supported on port D,
+			 * so no need to worry about it
+			 */
+			has_port = intel_bios_is_port_present(dev_priv, PORT_D);
+			if (I915_READ(CHV_DP_D) & DP_DETECTED || has_port)
 				intel_dp_init(dev, CHV_DP_D, PORT_D);
+			if (I915_READ(CHV_HDMID) & SDVO_DETECTED || has_port)
+				intel_hdmi_init(dev, CHV_HDMID, PORT_D);
 		}
 
 		intel_dsi_init(dev);
@@ -15565,6 +15602,8 @@ void intel_modeset_cleanup(struct drm_de
 	mutex_lock(&dev->struct_mutex);
 	intel_cleanup_gt_powersave(dev);
 	mutex_unlock(&dev->struct_mutex);
+
+	intel_teardown_gmbus(dev);
 }
 
 /*
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/i915/intel_dp.c linux-libre-4.4.107-gnu/drivers/gpu/drm/i915/intel_dp.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/i915/intel_dp.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/i915/intel_dp.c	2017-12-20 04:05:01.000000000 -0500
@@ -3628,8 +3628,7 @@ static bool
 intel_dp_reset_link_train(struct intel_dp *intel_dp, uint32_t *DP,
 			uint8_t dp_train_pat)
 {
-	if (!intel_dp->train_set_valid)
-		memset(intel_dp->train_set, 0, sizeof(intel_dp->train_set));
+	memset(intel_dp->train_set, 0, sizeof(intel_dp->train_set));
 	intel_dp_set_signal_levels(intel_dp, DP);
 	return intel_dp_set_link_train(intel_dp, DP, dp_train_pat);
 }
@@ -3746,22 +3745,6 @@ intel_dp_link_training_clock_recovery(st
 			break;
 		}
 
-		/*
-		 * if we used previously trained voltage and pre-emphasis values
-		 * and we don't get clock recovery, reset link training values
-		 */
-		if (intel_dp->train_set_valid) {
-			DRM_DEBUG_KMS("clock recovery not ok, reset");
-			/* clear the flag as we are not reusing train set */
-			intel_dp->train_set_valid = false;
-			if (!intel_dp_reset_link_train(intel_dp, &DP,
-						       DP_TRAINING_PATTERN_1 |
-						       DP_LINK_SCRAMBLING_DISABLE)) {
-				DRM_ERROR("failed to enable link training\n");
-				return;
-			}
-			continue;
-		}
 
 		/* Check to see if we've tried the max voltage */
 		for (i = 0; i < intel_dp->lane_count; i++)
@@ -3854,7 +3837,6 @@ intel_dp_link_training_channel_equalizat
 		/* Make sure clock is still ok */
 		if (!drm_dp_clock_recovery_ok(link_status,
 					      intel_dp->lane_count)) {
-			intel_dp->train_set_valid = false;
 			intel_dp_link_training_clock_recovery(intel_dp);
 			intel_dp_set_link_train(intel_dp, &DP,
 						training_pattern |
@@ -3871,7 +3853,6 @@ intel_dp_link_training_channel_equalizat
 
 		/* Try 5 times, then try clock recovery if that fails */
 		if (tries > 5) {
-			intel_dp->train_set_valid = false;
 			intel_dp_link_training_clock_recovery(intel_dp);
 			intel_dp_set_link_train(intel_dp, &DP,
 						training_pattern |
@@ -3893,10 +3874,8 @@ intel_dp_link_training_channel_equalizat
 
 	intel_dp->DP = DP;
 
-	if (channel_eq) {
-		intel_dp->train_set_valid = true;
+	if (channel_eq)
 		DRM_DEBUG_KMS("Channel EQ done. DP Training successful\n");
-	}
 }
 
 void intel_dp_stop_link_train(struct intel_dp *intel_dp)
@@ -4613,20 +4592,20 @@ static bool g4x_digital_port_connected(s
 	return I915_READ(PORT_HOTPLUG_STAT) & bit;
 }
 
-static bool vlv_digital_port_connected(struct drm_i915_private *dev_priv,
-				       struct intel_digital_port *port)
+static bool gm45_digital_port_connected(struct drm_i915_private *dev_priv,
+					struct intel_digital_port *port)
 {
 	u32 bit;
 
 	switch (port->port) {
 	case PORT_B:
-		bit = PORTB_HOTPLUG_LIVE_STATUS_VLV;
+		bit = PORTB_HOTPLUG_LIVE_STATUS_GM45;
 		break;
 	case PORT_C:
-		bit = PORTC_HOTPLUG_LIVE_STATUS_VLV;
+		bit = PORTC_HOTPLUG_LIVE_STATUS_GM45;
 		break;
 	case PORT_D:
-		bit = PORTD_HOTPLUG_LIVE_STATUS_VLV;
+		bit = PORTD_HOTPLUG_LIVE_STATUS_GM45;
 		break;
 	default:
 		MISSING_CASE(port->port);
@@ -4669,7 +4648,7 @@ static bool bxt_digital_port_connected(s
  *
  * Return %true if @port is connected, %false otherwise.
  */
-bool intel_digital_port_connected(struct drm_i915_private *dev_priv,
+static bool intel_digital_port_connected(struct drm_i915_private *dev_priv,
 					 struct intel_digital_port *port)
 {
 	if (HAS_PCH_IBX(dev_priv))
@@ -4678,8 +4657,8 @@ bool intel_digital_port_connected(struct
 		return cpt_digital_port_connected(dev_priv, port);
 	else if (IS_BROXTON(dev_priv))
 		return bxt_digital_port_connected(dev_priv, port);
-	else if (IS_VALLEYVIEW(dev_priv))
-		return vlv_digital_port_connected(dev_priv, port);
+	else if (IS_GM45(dev_priv))
+		return gm45_digital_port_connected(dev_priv, port);
 	else
 		return g4x_digital_port_connected(dev_priv, port);
 }
@@ -5035,7 +5014,7 @@ void intel_dp_encoder_destroy(struct drm
 	kfree(intel_dig_port);
 }
 
-static void intel_dp_encoder_suspend(struct intel_encoder *intel_encoder)
+void intel_dp_encoder_suspend(struct intel_encoder *intel_encoder)
 {
 	struct intel_dp *intel_dp = enc_to_intel_dp(&intel_encoder->base);
 
@@ -5077,15 +5056,17 @@ static void intel_edp_panel_vdd_sanitize
 	edp_panel_vdd_schedule_off(intel_dp);
 }
 
-static void intel_dp_encoder_reset(struct drm_encoder *encoder)
+void intel_dp_encoder_reset(struct drm_encoder *encoder)
 {
-	struct intel_dp *intel_dp;
+	struct drm_i915_private *dev_priv = to_i915(encoder->dev);
+	struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
+
+	if (!HAS_DDI(dev_priv))
+		intel_dp->DP = I915_READ(intel_dp->output_reg);
 
 	if (to_intel_encoder(encoder)->type != INTEL_OUTPUT_EDP)
 		return;
 
-	intel_dp = enc_to_intel_dp(encoder);
-
 	pps_lock(intel_dp);
 
 	/*
@@ -5157,9 +5138,6 @@ intel_dp_hpd_pulse(struct intel_digital_
 	intel_display_power_get(dev_priv, power_domain);
 
 	if (long_hpd) {
-		/* indicate that we need to restart link training */
-		intel_dp->train_set_valid = false;
-
 		if (!intel_digital_port_connected(dev_priv, intel_dig_port))
 			goto mst_fail;
 
@@ -6135,8 +6113,9 @@ intel_dp_init_connector(struct intel_dig
 	return true;
 }
 
-void
-intel_dp_init(struct drm_device *dev, int output_reg, enum port port)
+bool intel_dp_init(struct drm_device *dev,
+		   int output_reg,
+		   enum port port)
 {
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct intel_digital_port *intel_dig_port;
@@ -6146,7 +6125,7 @@ intel_dp_init(struct drm_device *dev, in
 
 	intel_dig_port = kzalloc(sizeof(*intel_dig_port), GFP_KERNEL);
 	if (!intel_dig_port)
-		return;
+		return false;
 
 	intel_connector = intel_connector_alloc();
 	if (!intel_connector)
@@ -6201,15 +6180,14 @@ intel_dp_init(struct drm_device *dev, in
 	if (!intel_dp_init_connector(intel_dig_port, intel_connector))
 		goto err_init_connector;
 
-	return;
+	return true;
 
 err_init_connector:
 	drm_encoder_cleanup(encoder);
 	kfree(intel_connector);
 err_connector_alloc:
 	kfree(intel_dig_port);
-
-	return;
+	return false;
 }
 
 void intel_dp_mst_suspend(struct drm_device *dev)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/i915/intel_dp_mst.c linux-libre-4.4.107-gnu/drivers/gpu/drm/i915/intel_dp_mst.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/i915/intel_dp_mst.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/i915/intel_dp_mst.c	2017-12-20 04:05:01.000000000 -0500
@@ -477,6 +477,8 @@ static void intel_dp_destroy_mst_connect
 	struct intel_connector *intel_connector = to_intel_connector(connector);
 	struct drm_device *dev = connector->dev;
 
+	intel_connector->unregister(intel_connector);
+
 	/* need to nuke the connector */
 	drm_modeset_lock_all(dev);
 	if (connector->state->crtc) {
@@ -490,11 +492,7 @@ static void intel_dp_destroy_mst_connect
 
 		WARN(ret, "Disabling mst crtc failed with %i\n", ret);
 	}
-	drm_modeset_unlock_all(dev);
 
-	intel_connector->unregister(intel_connector);
-
-	drm_modeset_lock_all(dev);
 	intel_connector_remove_from_fbdev(intel_connector);
 	drm_connector_cleanup(connector);
 	drm_modeset_unlock_all(dev);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/i915/intel_drv.h linux-libre-4.4.107-gnu/drivers/gpu/drm/i915/intel_drv.h
--- linux-libre-4.4-gnu/drivers/gpu/drm/i915/intel_drv.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/i915/intel_drv.h	2017-12-20 04:05:01.000000000 -0500
@@ -783,7 +783,6 @@ struct intel_dp {
 				     bool has_aux_irq,
 				     int send_bytes,
 				     uint32_t aux_clock_divider);
-	bool train_set_valid;
 
 	/* Displayport compliance testing */
 	unsigned long compliance_test_type;
@@ -1178,9 +1177,9 @@ void intel_modeset_preclose(struct drm_d
 int skl_update_scaler_crtc(struct intel_crtc_state *crtc_state);
 int skl_max_scale(struct intel_crtc *crtc, struct intel_crtc_state *crtc_state);
 
-unsigned long intel_plane_obj_offset(struct intel_plane *intel_plane,
-				     struct drm_i915_gem_object *obj,
-				     unsigned int plane);
+u32 intel_plane_obj_offset(struct intel_plane *intel_plane,
+			   struct drm_i915_gem_object *obj,
+			   unsigned int plane);
 
 u32 skl_plane_ctl_format(uint32_t pixel_format);
 u32 skl_plane_ctl_tiling(uint64_t fb_modifier);
@@ -1196,7 +1195,7 @@ void intel_csr_ucode_fini(struct drm_dev
 void assert_csr_loaded(struct drm_i915_private *dev_priv);
 
 /* intel_dp.c */
-void intel_dp_init(struct drm_device *dev, int output_reg, enum port port);
+bool intel_dp_init(struct drm_device *dev, int output_reg, enum port port);
 bool intel_dp_init_connector(struct intel_digital_port *intel_dig_port,
 			     struct intel_connector *intel_connector);
 void intel_dp_set_link_params(struct intel_dp *intel_dp,
@@ -1204,6 +1203,8 @@ void intel_dp_set_link_params(struct int
 void intel_dp_start_link_train(struct intel_dp *intel_dp);
 void intel_dp_stop_link_train(struct intel_dp *intel_dp);
 void intel_dp_sink_dpms(struct intel_dp *intel_dp, int mode);
+void intel_dp_encoder_reset(struct drm_encoder *encoder);
+void intel_dp_encoder_suspend(struct intel_encoder *intel_encoder);
 void intel_dp_encoder_destroy(struct drm_encoder *encoder);
 int intel_dp_sink_crc(struct intel_dp *intel_dp, u8 *crc);
 bool intel_dp_compute_config(struct intel_encoder *encoder,
@@ -1230,8 +1231,6 @@ void intel_edp_drrs_disable(struct intel
 void intel_edp_drrs_invalidate(struct drm_device *dev,
 		unsigned frontbuffer_bits);
 void intel_edp_drrs_flush(struct drm_device *dev, unsigned frontbuffer_bits);
-bool intel_digital_port_connected(struct drm_i915_private *dev_priv,
-					 struct intel_digital_port *port);
 void hsw_dp_set_ddi_pll_sel(struct intel_crtc_state *pipe_config);
 
 /* intel_dp_mst.c */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c linux-libre-4.4.107-gnu/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c	2017-12-20 04:05:01.000000000 -0500
@@ -207,7 +207,12 @@ static const u8 *mipi_exec_gpio(struct i
 	gpio = *data++;
 
 	/* pull up/down */
-	action = *data++;
+	action = *data++ & 1;
+
+	if (gpio >= ARRAY_SIZE(gtable)) {
+		DRM_DEBUG_KMS("unknown gpio %u\n", gpio);
+		goto out;
+	}
 
 	function = gtable[gpio].function_reg;
 	pad = gtable[gpio].pad_reg;
@@ -226,6 +231,7 @@ static const u8 *mipi_exec_gpio(struct i
 	vlv_gpio_nc_write(dev_priv, pad, val);
 	mutex_unlock(&dev_priv->sb_lock);
 
+out:
 	return data;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/i915/intel_fbdev.c linux-libre-4.4.107-gnu/drivers/gpu/drm/i915/intel_fbdev.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/i915/intel_fbdev.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/i915/intel_fbdev.c	2017-12-20 04:05:01.000000000 -0500
@@ -362,12 +362,12 @@ static bool intel_fb_initial_config(stru
 	uint64_t conn_configured = 0, mask;
 	int pass = 0;
 
-	save_enabled = kcalloc(dev->mode_config.num_connector, sizeof(bool),
+	save_enabled = kcalloc(fb_helper->connector_count, sizeof(bool),
 			       GFP_KERNEL);
 	if (!save_enabled)
 		return false;
 
-	memcpy(save_enabled, enabled, dev->mode_config.num_connector);
+	memcpy(save_enabled, enabled, fb_helper->connector_count);
 	mask = (1 << fb_helper->connector_count) - 1;
 retry:
 	for (i = 0; i < fb_helper->connector_count; i++) {
@@ -501,7 +501,7 @@ retry:
 	if (fallback) {
 bail:
 		DRM_DEBUG_KMS("Not using firmware configuration\n");
-		memcpy(enabled, save_enabled, dev->mode_config.num_connector);
+		memcpy(enabled, save_enabled, fb_helper->connector_count);
 		kfree(save_enabled);
 		return false;
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/i915/intel_hdmi.c linux-libre-4.4.107-gnu/drivers/gpu/drm/i915/intel_hdmi.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/i915/intel_hdmi.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/i915/intel_hdmi.c	2017-12-20 04:05:01.000000000 -0500
@@ -1331,19 +1331,18 @@ intel_hdmi_unset_edid(struct drm_connect
 }
 
 static bool
-intel_hdmi_set_edid(struct drm_connector *connector, bool force)
+intel_hdmi_set_edid(struct drm_connector *connector)
 {
 	struct drm_i915_private *dev_priv = to_i915(connector->dev);
 	struct intel_hdmi *intel_hdmi = intel_attached_hdmi(connector);
-	struct edid *edid = NULL;
+	struct edid *edid;
 	bool connected = false;
 
 	intel_display_power_get(dev_priv, POWER_DOMAIN_GMBUS);
 
-	if (force)
-		edid = drm_get_edid(connector,
-				    intel_gmbus_get_adapter(dev_priv,
-				    intel_hdmi->ddc_bus));
+	edid = drm_get_edid(connector,
+			    intel_gmbus_get_adapter(dev_priv,
+			    intel_hdmi->ddc_bus));
 
 	intel_display_power_put(dev_priv, POWER_DOMAIN_GMBUS);
 
@@ -1371,29 +1370,16 @@ static enum drm_connector_status
 intel_hdmi_detect(struct drm_connector *connector, bool force)
 {
 	enum drm_connector_status status;
-	struct intel_hdmi *intel_hdmi = intel_attached_hdmi(connector);
 	struct drm_i915_private *dev_priv = to_i915(connector->dev);
-	bool live_status = false;
-	unsigned int try;
 
 	DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
 		      connector->base.id, connector->name);
 
 	intel_display_power_get(dev_priv, POWER_DOMAIN_GMBUS);
 
-	for (try = 0; !live_status && try < 9; try++) {
-		if (try)
-			msleep(10);
-		live_status = intel_digital_port_connected(dev_priv,
-				hdmi_to_dig_port(intel_hdmi));
-	}
-
-	if (!live_status)
-		DRM_DEBUG_KMS("Live status not up!");
-
 	intel_hdmi_unset_edid(connector);
 
-	if (intel_hdmi_set_edid(connector, live_status)) {
+	if (intel_hdmi_set_edid(connector)) {
 		struct intel_hdmi *intel_hdmi = intel_attached_hdmi(connector);
 
 		hdmi_to_dig_port(intel_hdmi)->base.type = INTEL_OUTPUT_HDMI;
@@ -1419,7 +1405,7 @@ intel_hdmi_force(struct drm_connector *c
 	if (connector->status != connector_status_connected)
 		return;
 
-	intel_hdmi_set_edid(connector, true);
+	intel_hdmi_set_edid(connector);
 	hdmi_to_dig_port(intel_hdmi)->base.type = INTEL_OUTPUT_HDMI;
 }
 
@@ -2011,6 +1997,50 @@ intel_hdmi_add_properties(struct intel_h
 	intel_hdmi->aspect_ratio = HDMI_PICTURE_ASPECT_NONE;
 }
 
+static u8 intel_hdmi_ddc_pin(struct drm_i915_private *dev_priv,
+			     enum port port)
+{
+	const struct ddi_vbt_port_info *info =
+		&dev_priv->vbt.ddi_port_info[port];
+	u8 ddc_pin;
+
+	if (info->alternate_ddc_pin) {
+		DRM_DEBUG_KMS("Using DDC pin 0x%x for port %c (VBT)\n",
+			      info->alternate_ddc_pin, port_name(port));
+		return info->alternate_ddc_pin;
+	}
+
+	switch (port) {
+	case PORT_B:
+		if (IS_BROXTON(dev_priv))
+			ddc_pin = GMBUS_PIN_1_BXT;
+		else
+			ddc_pin = GMBUS_PIN_DPB;
+		break;
+	case PORT_C:
+		if (IS_BROXTON(dev_priv))
+			ddc_pin = GMBUS_PIN_2_BXT;
+		else
+			ddc_pin = GMBUS_PIN_DPC;
+		break;
+	case PORT_D:
+		if (IS_CHERRYVIEW(dev_priv))
+			ddc_pin = GMBUS_PIN_DPD_CHV;
+		else
+			ddc_pin = GMBUS_PIN_DPD;
+		break;
+	default:
+		MISSING_CASE(port);
+		ddc_pin = GMBUS_PIN_DPB;
+		break;
+	}
+
+	DRM_DEBUG_KMS("Using DDC pin 0x%x for port %c (platform default)\n",
+		      ddc_pin, port_name(port));
+
+	return ddc_pin;
+}
+
 void intel_hdmi_init_connector(struct intel_digital_port *intel_dig_port,
 			       struct intel_connector *intel_connector)
 {
@@ -2020,7 +2050,9 @@ void intel_hdmi_init_connector(struct in
 	struct drm_device *dev = intel_encoder->base.dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	enum port port = intel_dig_port->port;
-	uint8_t alternate_ddc_pin;
+
+	DRM_DEBUG_KMS("Adding HDMI connector on port %c\n",
+		      port_name(port));
 
 	drm_connector_init(dev, connector, &intel_hdmi_connector_funcs,
 			   DRM_MODE_CONNECTOR_HDMIA);
@@ -2030,12 +2062,10 @@ void intel_hdmi_init_connector(struct in
 	connector->doublescan_allowed = 0;
 	connector->stereo_allowed = 1;
 
+	intel_hdmi->ddc_bus = intel_hdmi_ddc_pin(dev_priv, port);
+
 	switch (port) {
 	case PORT_B:
-		if (IS_BROXTON(dev_priv))
-			intel_hdmi->ddc_bus = GMBUS_PIN_1_BXT;
-		else
-			intel_hdmi->ddc_bus = GMBUS_PIN_DPB;
 		/*
 		 * On BXT A0/A1, sw needs to activate DDIA HPD logic and
 		 * interrupts to check the external panel connection.
@@ -2046,46 +2076,17 @@ void intel_hdmi_init_connector(struct in
 			intel_encoder->hpd_pin = HPD_PORT_B;
 		break;
 	case PORT_C:
-		if (IS_BROXTON(dev_priv))
-			intel_hdmi->ddc_bus = GMBUS_PIN_2_BXT;
-		else
-			intel_hdmi->ddc_bus = GMBUS_PIN_DPC;
 		intel_encoder->hpd_pin = HPD_PORT_C;
 		break;
 	case PORT_D:
-		if (WARN_ON(IS_BROXTON(dev_priv)))
-			intel_hdmi->ddc_bus = GMBUS_PIN_DISABLED;
-		else if (IS_CHERRYVIEW(dev_priv))
-			intel_hdmi->ddc_bus = GMBUS_PIN_DPD_CHV;
-		else
-			intel_hdmi->ddc_bus = GMBUS_PIN_DPD;
 		intel_encoder->hpd_pin = HPD_PORT_D;
 		break;
 	case PORT_E:
-		/* On SKL PORT E doesn't have seperate GMBUS pin
-		 *  We rely on VBT to set a proper alternate GMBUS pin. */
-		alternate_ddc_pin =
-			dev_priv->vbt.ddi_port_info[PORT_E].alternate_ddc_pin;
-		switch (alternate_ddc_pin) {
-		case DDC_PIN_B:
-			intel_hdmi->ddc_bus = GMBUS_PIN_DPB;
-			break;
-		case DDC_PIN_C:
-			intel_hdmi->ddc_bus = GMBUS_PIN_DPC;
-			break;
-		case DDC_PIN_D:
-			intel_hdmi->ddc_bus = GMBUS_PIN_DPD;
-			break;
-		default:
-			MISSING_CASE(alternate_ddc_pin);
-		}
 		intel_encoder->hpd_pin = HPD_PORT_E;
 		break;
-	case PORT_A:
-		intel_encoder->hpd_pin = HPD_PORT_A;
-		/* Internal port only for eDP. */
 	default:
-		BUG();
+		MISSING_CASE(port);
+		return;
 	}
 
 	if (IS_VALLEYVIEW(dev)) {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/i915/intel_hotplug.c linux-libre-4.4.107-gnu/drivers/gpu/drm/i915/intel_hotplug.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/i915/intel_hotplug.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/i915/intel_hotplug.c	2017-12-20 04:05:01.000000000 -0500
@@ -468,9 +468,14 @@ void intel_hpd_init(struct drm_i915_priv
 	list_for_each_entry(connector, &mode_config->connector_list, head) {
 		struct intel_connector *intel_connector = to_intel_connector(connector);
 		connector->polled = intel_connector->polled;
-		if (connector->encoder && !connector->polled && I915_HAS_HOTPLUG(dev) && intel_connector->encoder->hpd_pin > HPD_NONE)
-			connector->polled = DRM_CONNECTOR_POLL_HPD;
+
+		/* MST has a dynamic intel_connector->encoder and it's reprobing
+		 * is all handled by the MST helpers. */
 		if (intel_connector->mst_port)
+			continue;
+
+		if (!connector->polled && I915_HAS_HOTPLUG(dev) &&
+		    intel_connector->encoder->hpd_pin > HPD_NONE)
 			connector->polled = DRM_CONNECTOR_POLL_HPD;
 	}
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/i915/intel_i2c.c linux-libre-4.4.107-gnu/drivers/gpu/drm/i915/intel_i2c.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/i915/intel_i2c.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/i915/intel_i2c.c	2017-12-20 04:05:01.000000000 -0500
@@ -440,7 +440,9 @@ static bool
 gmbus_is_index_read(struct i2c_msg *msgs, int i, int num)
 {
 	return (i + 1 < num &&
-		!(msgs[i].flags & I2C_M_RD) && msgs[i].len <= 2 &&
+		msgs[i].addr == msgs[i + 1].addr &&
+		!(msgs[i].flags & I2C_M_RD) &&
+		(msgs[i].len == 1 || msgs[i].len == 2) &&
 		(msgs[i + 1].flags & I2C_M_RD));
 }
 
@@ -675,7 +677,7 @@ int intel_setup_gmbus(struct drm_device
 	return 0;
 
 err:
-	while (--pin) {
+	while (pin--) {
 		if (!intel_gmbus_is_valid_pin(dev_priv, pin))
 			continue;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/i915/intel_lrc.c linux-libre-4.4.107-gnu/drivers/gpu/drm/i915/intel_lrc.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/i915/intel_lrc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/i915/intel_lrc.c	2017-12-20 04:05:01.000000000 -0500
@@ -776,11 +776,11 @@ static int logical_ring_prepare(struct d
 		if (unlikely(total_bytes > remain_usable)) {
 			/*
 			 * The base request will fit but the reserved space
-			 * falls off the end. So only need to to wait for the
-			 * reserved size after flushing out the remainder.
+			 * falls off the end. So don't need an immediate wrap
+			 * and only need to effectively wait for the reserved
+			 * size space from the start of ringbuffer.
 			 */
 			wait_bytes = remain_actual + ringbuf->reserved_size;
-			need_wrap = true;
 		} else if (total_bytes > ringbuf->space) {
 			/* No wrapping required, just waiting. */
 			wait_bytes = total_bytes;
@@ -1706,6 +1706,7 @@ static int gen8_emit_flush_render(struct
 	if (flush_domains) {
 		flags |= PIPE_CONTROL_RENDER_TARGET_CACHE_FLUSH;
 		flags |= PIPE_CONTROL_DEPTH_CACHE_FLUSH;
+		flags |= PIPE_CONTROL_DC_FLUSH_ENABLE;
 		flags |= PIPE_CONTROL_FLUSH_ENABLE;
 	}
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/i915/intel_opregion.c linux-libre-4.4.107-gnu/drivers/gpu/drm/i915/intel_opregion.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/i915/intel_opregion.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/i915/intel_opregion.c	2017-12-20 04:05:01.000000000 -0500
@@ -682,7 +682,7 @@ static void intel_didl_outputs(struct dr
 	}
 
 	if (!acpi_video_bus) {
-		DRM_ERROR("No ACPI video bus found\n");
+		DRM_DEBUG_KMS("No ACPI video bus found\n");
 		return;
 	}
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/i915/intel_pm.c linux-libre-4.4.107-gnu/drivers/gpu/drm/i915/intel_pm.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/i915/intel_pm.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/i915/intel_pm.c	2017-12-20 04:05:01.000000000 -0500
@@ -1789,16 +1789,20 @@ static uint32_t ilk_compute_cur_wm(const
 				   const struct intel_plane_state *pstate,
 				   uint32_t mem_value)
 {
-	int bpp = pstate->base.fb ? pstate->base.fb->bits_per_pixel / 8 : 0;
+	/*
+	 * We treat the cursor plane as always-on for the purposes of watermark
+	 * calculation.  Until we have two-stage watermark programming merged,
+	 * this is necessary to avoid flickering.
+	 */
+	int cpp = 4;
+	int width = pstate->visible ? pstate->base.crtc_w : 64;
 
-	if (!cstate->base.active || !pstate->visible)
+	if (!cstate->base.active)
 		return 0;
 
 	return ilk_wm_method2(ilk_pipe_pixel_rate(cstate),
 			      cstate->base.adjusted_mode.crtc_htotal,
-			      drm_rect_width(&pstate->dst),
-			      bpp,
-			      mem_value);
+			      width, cpp, mem_value);
 }
 
 /* Only for WM_LP. */
@@ -2093,32 +2097,34 @@ static void intel_read_wm_latency(struct
 				GEN9_MEM_LATENCY_LEVEL_MASK;
 
 		/*
+		 * If a level n (n > 1) has a 0us latency, all levels m (m >= n)
+		 * need to be disabled. We make sure to sanitize the values out
+		 * of the punit to satisfy this requirement.
+		 */
+		for (level = 1; level <= max_level; level++) {
+			if (wm[level] == 0) {
+				for (i = level + 1; i <= max_level; i++)
+					wm[i] = 0;
+				break;
+			}
+		}
+
+		/*
 		 * WaWmMemoryReadLatency:skl
 		 *
 		 * punit doesn't take into account the read latency so we need
-		 * to add 2us to the various latency levels we retrieve from
-		 * the punit.
-		 *   - W0 is a bit special in that it's the only level that
-		 *   can't be disabled if we want to have display working, so
-		 *   we always add 2us there.
-		 *   - For levels >=1, punit returns 0us latency when they are
-		 *   disabled, so we respect that and don't add 2us then
-		 *
-		 * Additionally, if a level n (n > 1) has a 0us latency, all
-		 * levels m (m >= n) need to be disabled. We make sure to
-		 * sanitize the values out of the punit to satisfy this
-		 * requirement.
+		 * to add 2us to the various latency levels we retrieve from the
+		 * punit when level 0 response data us 0us.
 		 */
-		wm[0] += 2;
-		for (level = 1; level <= max_level; level++)
-			if (wm[level] != 0)
+		if (wm[0] == 0) {
+			wm[0] += 2;
+			for (level = 1; level <= max_level; level++) {
+				if (wm[level] == 0)
+					break;
 				wm[level] += 2;
-			else {
-				for (i = level + 1; i <= max_level; i++)
-					wm[i] = 0;
-
-				break;
 			}
+		}
+
 	} else if (IS_HASWELL(dev) || IS_BROADWELL(dev)) {
 		uint64_t sskpd = I915_READ64(MCH_SSKPD);
 
@@ -3880,6 +3886,8 @@ static void ilk_pipe_wm_get_hw_state(str
 	if (IS_HASWELL(dev) || IS_BROADWELL(dev))
 		hw->wm_linetime[pipe] = I915_READ(PIPE_WM_LINETIME(pipe));
 
+	memset(active, 0, sizeof(*active));
+
 	active->pipe_enabled = intel_crtc->active;
 
 	if (active->pipe_enabled) {
@@ -4368,6 +4376,12 @@ static void gen6_set_rps_thresholds(stru
 		break;
 	}
 
+	/* When byt can survive without system hang with dynamic
+	 * sw freq adjustments, this restriction can be lifted.
+	 */
+	if (IS_VALLEYVIEW(dev_priv))
+		goto skip_hw_write;
+
 	I915_WRITE(GEN6_RP_UP_EI,
 		GT_INTERVAL_FROM_US(dev_priv, ei_up));
 	I915_WRITE(GEN6_RP_UP_THRESHOLD,
@@ -4386,6 +4400,7 @@ static void gen6_set_rps_thresholds(stru
 		    GEN6_RP_UP_BUSY_AVG |
 		    GEN6_RP_DOWN_IDLE_AVG);
 
+skip_hw_write:
 	dev_priv->rps.power = new_power;
 	dev_priv->rps.up_threshold = threshold_up;
 	dev_priv->rps.down_threshold = threshold_down;
@@ -4396,8 +4411,9 @@ static u32 gen6_rps_pm_mask(struct drm_i
 {
 	u32 mask = 0;
 
+	/* We use UP_EI_EXPIRED interupts for both up/down in manual mode */
 	if (val > dev_priv->rps.min_freq_softlimit)
-		mask |= GEN6_PM_RP_DOWN_EI_EXPIRED | GEN6_PM_RP_DOWN_THRESHOLD | GEN6_PM_RP_DOWN_TIMEOUT;
+		mask |= GEN6_PM_RP_UP_EI_EXPIRED | GEN6_PM_RP_DOWN_THRESHOLD | GEN6_PM_RP_DOWN_TIMEOUT;
 	if (val < dev_priv->rps.max_freq_softlimit)
 		mask |= GEN6_PM_RP_UP_EI_EXPIRED | GEN6_PM_RP_UP_THRESHOLD;
 
@@ -4501,7 +4517,7 @@ void gen6_rps_busy(struct drm_i915_priva
 {
 	mutex_lock(&dev_priv->rps.hw_lock);
 	if (dev_priv->rps.enabled) {
-		if (dev_priv->pm_rps_events & (GEN6_PM_RP_DOWN_EI_EXPIRED | GEN6_PM_RP_UP_EI_EXPIRED))
+		if (dev_priv->pm_rps_events & GEN6_PM_RP_UP_EI_EXPIRED)
 			gen6_rps_reset_ei(dev_priv);
 		I915_WRITE(GEN6_PMINTRMSK,
 			   gen6_rps_pm_mask(dev_priv, dev_priv->rps.cur_freq));
@@ -4520,7 +4536,8 @@ void gen6_rps_idle(struct drm_i915_priva
 		else
 			gen6_set_rps(dev_priv->dev, dev_priv->rps.idle_freq);
 		dev_priv->rps.last_adj = 0;
-		I915_WRITE(GEN6_PMINTRMSK, 0xffffffff);
+		I915_WRITE(GEN6_PMINTRMSK,
+			   gen6_sanitize_rps_pm_mask(dev_priv, ~0));
 	}
 	mutex_unlock(&dev_priv->rps.hw_lock);
 
@@ -6620,6 +6637,12 @@ static void broadwell_init_clock_gating(
 	misccpctl = I915_READ(GEN7_MISCCPCTL);
 	I915_WRITE(GEN7_MISCCPCTL, misccpctl & ~GEN7_DOP_CLOCK_GATE_ENABLE);
 	I915_WRITE(GEN8_L3SQCREG1, BDW_WA_L3SQCREG1_DEFAULT);
+	/*
+	 * Wait at least 100 clocks before re-enabling clock gating. See
+	 * the definition of L3SQCREG1 in BSpec.
+	 */
+	POSTING_READ(GEN8_L3SQCREG1);
+	udelay(1);
 	I915_WRITE(GEN7_MISCCPCTL, misccpctl);
 
 	/*
@@ -6788,7 +6811,18 @@ static void ivybridge_init_clock_gating(
 
 static void vlv_init_display_clock_gating(struct drm_i915_private *dev_priv)
 {
-	I915_WRITE(DSPCLK_GATE_D, VRHUNIT_CLOCK_GATE_DISABLE);
+        u32 val;
+
+        /*
+        * On driver load, a pipe may be active and driving a DSI display.
+        * Preserve DPOUNIT_CLOCK_GATE_DISABLE to avoid the pipe getting stuck
+        * (and never recovering) in this case. intel_dsi_post_disable() will
+        * clear it when we turn off the display.
+        */
+        val = I915_READ(DSPCLK_GATE_D);
+        val &= DPOUNIT_CLOCK_GATE_DISABLE;
+        val |= VRHUNIT_CLOCK_GATE_DISABLE;
+        I915_WRITE(DSPCLK_GATE_D, val);
 
 	/*
 	 * Disable trickle feed and enable pnd deadline calculation
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/i915/intel_ringbuffer.c linux-libre-4.4.107-gnu/drivers/gpu/drm/i915/intel_ringbuffer.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/i915/intel_ringbuffer.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/i915/intel_ringbuffer.c	2017-12-20 04:05:01.000000000 -0500
@@ -347,6 +347,7 @@ gen7_render_ring_flush(struct drm_i915_g
 	if (flush_domains) {
 		flags |= PIPE_CONTROL_RENDER_TARGET_CACHE_FLUSH;
 		flags |= PIPE_CONTROL_DEPTH_CACHE_FLUSH;
+		flags |= PIPE_CONTROL_DC_FLUSH_ENABLE;
 		flags |= PIPE_CONTROL_FLUSH_ENABLE;
 	}
 	if (invalidate_domains) {
@@ -419,6 +420,7 @@ gen8_render_ring_flush(struct drm_i915_g
 	if (flush_domains) {
 		flags |= PIPE_CONTROL_RENDER_TARGET_CACHE_FLUSH;
 		flags |= PIPE_CONTROL_DEPTH_CACHE_FLUSH;
+		flags |= PIPE_CONTROL_DC_FLUSH_ENABLE;
 		flags |= PIPE_CONTROL_FLUSH_ENABLE;
 	}
 	if (invalidate_domains) {
@@ -1920,6 +1922,17 @@ i915_dispatch_execbuffer(struct drm_i915
 	return 0;
 }
 
+static void cleanup_phys_status_page(struct intel_engine_cs *ring)
+{
+	struct drm_i915_private *dev_priv = to_i915(ring->dev);
+
+	if (!dev_priv->status_page_dmah)
+		return;
+
+	drm_pci_free(ring->dev, dev_priv->status_page_dmah);
+	ring->status_page.page_addr = NULL;
+}
+
 static void cleanup_status_page(struct intel_engine_cs *ring)
 {
 	struct drm_i915_gem_object *obj;
@@ -1936,9 +1949,9 @@ static void cleanup_status_page(struct i
 
 static int init_status_page(struct intel_engine_cs *ring)
 {
-	struct drm_i915_gem_object *obj;
+	struct drm_i915_gem_object *obj = ring->status_page.obj;
 
-	if ((obj = ring->status_page.obj) == NULL) {
+	if (obj == NULL) {
 		unsigned flags;
 		int ret;
 
@@ -2132,7 +2145,7 @@ static int intel_init_ring_buffer(struct
 		if (ret)
 			goto error;
 	} else {
-		BUG_ON(ring->id != RCS);
+		WARN_ON(ring->id != RCS);
 		ret = init_phys_status_page(ring);
 		if (ret)
 			goto error;
@@ -2177,7 +2190,12 @@ void intel_cleanup_ring_buffer(struct in
 	if (ring->cleanup)
 		ring->cleanup(ring);
 
-	cleanup_status_page(ring);
+	if (I915_NEED_GFX_HWS(ring->dev)) {
+		cleanup_status_page(ring);
+	} else {
+		WARN_ON(ring->id != RCS);
+		cleanup_phys_status_page(ring);
+	}
 
 	i915_cmd_parser_fini_ring(ring);
 	i915_gem_batch_pool_fini(&ring->batch_pool);
@@ -2339,11 +2357,11 @@ static int __intel_ring_prepare(struct i
 		if (unlikely(total_bytes > remain_usable)) {
 			/*
 			 * The base request will fit but the reserved space
-			 * falls off the end. So only need to to wait for the
-			 * reserved size after flushing out the remainder.
+			 * falls off the end. So don't need an immediate wrap
+			 * and only need to effectively wait for the reserved
+			 * size space from the start of ringbuffer.
 			 */
 			wait_bytes = remain_actual + ringbuf->reserved_size;
-			need_wrap = true;
 		} else if (total_bytes > ringbuf->space) {
 			/* No wrapping required, just waiting. */
 			wait_bytes = total_bytes;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/i915/intel_sprite.c linux-libre-4.4.107-gnu/drivers/gpu/drm/i915/intel_sprite.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/i915/intel_sprite.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/i915/intel_sprite.c	2017-12-20 04:05:01.000000000 -0500
@@ -195,7 +195,7 @@ skl_update_plane(struct drm_plane *drm_p
 	int pixel_size = drm_format_plane_cpp(fb->pixel_format, 0);
 	const struct drm_intel_sprite_colorkey *key =
 		&to_intel_plane_state(drm_plane->state)->ckey;
-	unsigned long surf_addr;
+	u32 surf_addr;
 	u32 tile_height, plane_offset, plane_size;
 	unsigned int rotation;
 	int x_offset, y_offset;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/i915/intel_uncore.c linux-libre-4.4.107-gnu/drivers/gpu/drm/i915/intel_uncore.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/i915/intel_uncore.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/i915/intel_uncore.c	2017-12-20 04:05:01.000000000 -0500
@@ -635,7 +635,8 @@ hsw_unclaimed_reg_detect(struct drm_i915
 			  "enabling oneshot unclaimed register reporting. "
 			  "Please use i915.mmio_debug=N for more information.\n");
 		__raw_i915_write32(dev_priv, FPGA_DBG, FPGA_DBG_RM_NOCLAIM);
-		i915.mmio_debug = mmio_debug_once--;
+		i915.mmio_debug = mmio_debug_once;
+		mmio_debug_once = false;
 	}
 }
 
@@ -1132,7 +1133,11 @@ static void intel_uncore_fw_domains_init
 	} else if (IS_HASWELL(dev) || IS_BROADWELL(dev)) {
 		dev_priv->uncore.funcs.force_wake_get =
 			fw_domains_get_with_thread_status;
-		dev_priv->uncore.funcs.force_wake_put = fw_domains_put;
+		if (IS_HASWELL(dev))
+			dev_priv->uncore.funcs.force_wake_put =
+				fw_domains_put_with_fifo;
+		else
+			dev_priv->uncore.funcs.force_wake_put = fw_domains_put;
 		fw_domain_init(dev_priv, FW_DOMAIN_ID_RENDER,
 			       FORCEWAKE_MT, FORCEWAKE_ACK_HSW);
 	} else if (IS_IVYBRIDGE(dev)) {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/imx/imx-drm-core.c linux-libre-4.4.107-gnu/drivers/gpu/drm/imx/imx-drm-core.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/imx/imx-drm-core.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/imx/imx-drm-core.c	2017-12-20 04:05:01.000000000 -0500
@@ -26,6 +26,7 @@
 #include <drm/drm_fb_cma_helper.h>
 #include <drm/drm_plane_helper.h>
 #include <drm/drm_of.h>
+#include <video/imx-ipu-v3.h>
 
 #include "imx-drm.h"
 
@@ -504,6 +505,13 @@ static int compare_of(struct device *dev
 {
 	struct device_node *np = data;
 
+	/* Special case for DI, dev->of_node may not be set yet */
+	if (strcmp(dev->driver->name, "imx-ipuv3-crtc") == 0) {
+		struct ipu_client_platformdata *pdata = dev->platform_data;
+
+		return pdata->of_node == np;
+	}
+
 	/* Special case for LDB, one device for two channels */
 	if (of_node_cmp(np->name, "lvds-channel") == 0) {
 		np = of_get_parent(np);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/imx/ipuv3-crtc.c linux-libre-4.4.107-gnu/drivers/gpu/drm/imx/ipuv3-crtc.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/imx/ipuv3-crtc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/imx/ipuv3-crtc.c	2017-12-20 04:05:01.000000000 -0500
@@ -369,7 +369,7 @@ static int ipu_crtc_init(struct ipu_crtc
 
 	ret = imx_drm_add_crtc(drm, &ipu_crtc->base, &ipu_crtc->imx_crtc,
 			&ipu_crtc->plane[0]->base, &ipu_crtc_helper_funcs,
-			ipu_crtc->dev->of_node);
+			pdata->of_node);
 	if (ret) {
 		dev_err(ipu_crtc->dev, "adding crtc failed with %d.\n", ret);
 		goto err_put_resources;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/mgag200/mgag200_main.c linux-libre-4.4.107-gnu/drivers/gpu/drm/mgag200/mgag200_main.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/mgag200/mgag200_main.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/mgag200/mgag200_main.c	2017-12-20 04:05:01.000000000 -0500
@@ -145,6 +145,8 @@ static int mga_vram_init(struct mga_devi
 	}
 
 	mem = pci_iomap(mdev->dev->pdev, 0, 0);
+	if (!mem)
+		return -ENOMEM;
 
 	mdev->mc.vram_size = mga_probe_vram(mdev, mem);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/mgag200/mgag200_mode.c linux-libre-4.4.107-gnu/drivers/gpu/drm/mgag200/mgag200_mode.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/mgag200/mgag200_mode.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/mgag200/mgag200_mode.c	2017-12-20 04:05:01.000000000 -0500
@@ -194,7 +194,7 @@ static int mga_g200se_set_plls(struct mg
 			}
 		}
 
-		fvv = pllreffreq * testn / testm;
+		fvv = pllreffreq * (n + 1) / (m + 1);
 		fvv = (fvv - 800000) / 50000;
 
 		if (fvv > 15)
@@ -214,6 +214,14 @@ static int mga_g200se_set_plls(struct mg
 	WREG_DAC(MGA1064_PIX_PLLC_M, m);
 	WREG_DAC(MGA1064_PIX_PLLC_N, n);
 	WREG_DAC(MGA1064_PIX_PLLC_P, p);
+
+	if (mdev->unique_rev_id >= 0x04) {
+		WREG_DAC(0x1a, 0x09);
+		msleep(20);
+		WREG_DAC(0x1a, 0x01);
+
+	}
+
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/msm/adreno/adreno_gpu.c linux-libre-4.4.107-gnu/drivers/gpu/drm/msm/adreno/adreno_gpu.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/msm/adreno/adreno_gpu.c	2016-01-10 20:57:00.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/msm/adreno/adreno_gpu.c	2017-12-20 11:11:07.000000000 -0500
@@ -204,7 +204,14 @@ int adreno_submit(struct msm_gpu *gpu, s
 void adreno_flush(struct msm_gpu *gpu)
 {
 	struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu);
-	uint32_t wptr = get_wptr(gpu->rb);
+	uint32_t wptr;
+
+	/*
+	 * Mask wptr value that we calculate to fit in the HW range. This is
+	 * to account for the possibility that the last command fit exactly into
+	 * the ringbuffer and rb->next hasn't wrapped to zero yet
+	 */
+	wptr = get_wptr(gpu->rb) & ((gpu->rb->size / 4) - 1);
 
 	/* ensure writes to ringbuffer have hit system memory: */
 	mb();
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/msm/msm_drv.c linux-libre-4.4.107-gnu/drivers/gpu/drm/msm/msm_drv.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/msm/msm_drv.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/msm/msm_drv.c	2017-12-20 04:05:01.000000000 -0500
@@ -986,6 +986,7 @@ static struct drm_driver msm_driver = {
 	.prime_fd_to_handle = drm_gem_prime_fd_to_handle,
 	.gem_prime_export   = drm_gem_prime_export,
 	.gem_prime_import   = drm_gem_prime_import,
+	.gem_prime_res_obj  = msm_gem_prime_res_obj,
 	.gem_prime_pin      = msm_gem_prime_pin,
 	.gem_prime_unpin    = msm_gem_prime_unpin,
 	.gem_prime_get_sg_table = msm_gem_prime_get_sg_table,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/msm/msm_drv.h linux-libre-4.4.107-gnu/drivers/gpu/drm/msm/msm_drv.h
--- linux-libre-4.4-gnu/drivers/gpu/drm/msm/msm_drv.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/msm/msm_drv.h	2017-12-20 04:05:01.000000000 -0500
@@ -212,6 +212,7 @@ struct sg_table *msm_gem_prime_get_sg_ta
 void *msm_gem_prime_vmap(struct drm_gem_object *obj);
 void msm_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr);
 int msm_gem_prime_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma);
+struct reservation_object *msm_gem_prime_res_obj(struct drm_gem_object *obj);
 struct drm_gem_object *msm_gem_prime_import_sg_table(struct drm_device *dev,
 		struct dma_buf_attachment *attach, struct sg_table *sg);
 int msm_gem_prime_pin(struct drm_gem_object *obj);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/msm/msm_gem_prime.c linux-libre-4.4.107-gnu/drivers/gpu/drm/msm/msm_gem_prime.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/msm/msm_gem_prime.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/msm/msm_gem_prime.c	2017-12-20 04:05:01.000000000 -0500
@@ -70,3 +70,10 @@ void msm_gem_prime_unpin(struct drm_gem_
 	if (!obj->import_attach)
 		msm_gem_put_pages(obj);
 }
+
+struct reservation_object *msm_gem_prime_res_obj(struct drm_gem_object *obj)
+{
+	struct msm_gem_object *msm_obj = to_msm_bo(obj);
+
+	return msm_obj->resv;
+}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/msm/msm_gem_submit.c linux-libre-4.4.107-gnu/drivers/gpu/drm/msm/msm_gem_submit.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/msm/msm_gem_submit.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/msm/msm_gem_submit.c	2017-12-20 04:05:01.000000000 -0500
@@ -34,10 +34,13 @@ static inline void __user *to_user_ptr(u
 }
 
 static struct msm_gem_submit *submit_create(struct drm_device *dev,
-		struct msm_gpu *gpu, int nr)
+		struct msm_gpu *gpu, uint32_t nr)
 {
 	struct msm_gem_submit *submit;
-	int sz = sizeof(*submit) + (nr * sizeof(submit->bos[0]));
+	uint64_t sz = sizeof(*submit) + ((u64)nr * sizeof(submit->bos[0]));
+
+	if (sz > SIZE_MAX)
+		return NULL;
 
 	submit = kmalloc(sz, GFP_TEMPORARY | __GFP_NOWARN | __GFP_NORETRY);
 	if (submit) {
@@ -55,6 +58,14 @@ static struct msm_gem_submit *submit_cre
 	return submit;
 }
 
+static inline unsigned long __must_check
+copy_from_user_inatomic(void *to, const void __user *from, unsigned long n)
+{
+	if (access_ok(VERIFY_READ, from, n))
+		return __copy_from_user_inatomic(to, from, n);
+	return -EFAULT;
+}
+
 static int submit_lookup_objects(struct msm_gem_submit *submit,
 		struct drm_msm_gem_submit *args, struct drm_file *file)
 {
@@ -62,6 +73,7 @@ static int submit_lookup_objects(struct
 	int ret = 0;
 
 	spin_lock(&file->table_lock);
+	pagefault_disable();
 
 	for (i = 0; i < args->nr_bos; i++) {
 		struct drm_msm_gem_submit_bo submit_bo;
@@ -70,13 +82,19 @@ static int submit_lookup_objects(struct
 		void __user *userptr =
 			to_user_ptr(args->bos + (i * sizeof(submit_bo)));
 
-		ret = copy_from_user(&submit_bo, userptr, sizeof(submit_bo));
-		if (ret) {
-			ret = -EFAULT;
-			goto out_unlock;
+		ret = copy_from_user_inatomic(&submit_bo, userptr, sizeof(submit_bo));
+		if (unlikely(ret)) {
+			pagefault_enable();
+			spin_unlock(&file->table_lock);
+			ret = copy_from_user(&submit_bo, userptr, sizeof(submit_bo));
+			if (ret)
+				goto out;
+			spin_lock(&file->table_lock);
+			pagefault_disable();
 		}
 
-		if (submit_bo.flags & ~MSM_SUBMIT_BO_FLAGS) {
+		if ((submit_bo.flags & ~MSM_SUBMIT_BO_FLAGS) ||
+			!(submit_bo.flags & MSM_SUBMIT_BO_FLAGS)) {
 			DRM_ERROR("invalid flags: %x\n", submit_bo.flags);
 			ret = -EINVAL;
 			goto out_unlock;
@@ -113,9 +131,12 @@ static int submit_lookup_objects(struct
 	}
 
 out_unlock:
-	submit->nr_bos = i;
+	pagefault_enable();
 	spin_unlock(&file->table_lock);
 
+out:
+	submit->nr_bos = i;
+
 	return ret;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/msm/msm_ringbuffer.c linux-libre-4.4.107-gnu/drivers/gpu/drm/msm/msm_ringbuffer.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/msm/msm_ringbuffer.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/msm/msm_ringbuffer.c	2017-12-20 04:05:01.000000000 -0500
@@ -23,7 +23,8 @@ struct msm_ringbuffer *msm_ringbuffer_ne
 	struct msm_ringbuffer *ring;
 	int ret;
 
-	size = ALIGN(size, 4);   /* size should be dword aligned */
+	if (WARN_ON(!is_power_of_2(size)))
+		return ERR_PTR(-EINVAL);
 
 	ring = kzalloc(sizeof(*ring), GFP_KERNEL);
 	if (!ring) {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/dispnv04/hw.c linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/dispnv04/hw.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/dispnv04/hw.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/dispnv04/hw.c	2017-12-20 04:05:01.000000000 -0500
@@ -222,6 +222,7 @@ nouveau_hw_get_clock(struct drm_device *
 		uint32_t mpllP;
 
 		pci_read_config_dword(pci_get_bus_and_slot(0, 3), 0x6c, &mpllP);
+		mpllP = (mpllP >> 8) & 0xf;
 		if (!mpllP)
 			mpllP = 4;
 
@@ -232,7 +233,7 @@ nouveau_hw_get_clock(struct drm_device *
 		uint32_t clock;
 
 		pci_read_config_dword(pci_get_bus_and_slot(0, 5), 0x4c, &clock);
-		return clock;
+		return clock / 1000;
 	}
 
 	ret = nouveau_hw_get_pllvals(dev, plltype, &pllvals);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/include/nvkm/subdev/timer.h linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/include/nvkm/subdev/timer.h
--- linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/include/nvkm/subdev/timer.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/include/nvkm/subdev/timer.h	2017-12-20 04:05:01.000000000 -0500
@@ -4,6 +4,7 @@
 
 struct nvkm_alarm {
 	struct list_head head;
+	struct list_head exec;
 	u64 timestamp;
 	void (*func)(struct nvkm_alarm *);
 };
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nouveau_bios.c linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nouveau_bios.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nouveau_bios.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nouveau_bios.c	2017-12-20 04:05:01.000000000 -0500
@@ -333,6 +333,9 @@ get_fp_strap(struct drm_device *dev, str
 	if (bios->major_version < 5 && bios->data[0x48] & 0x4)
 		return NVReadVgaCrtc5758(dev, 0, 0xf) & 0xf;
 
+	if (drm->device.info.family >= NV_DEVICE_INFO_V0_MAXWELL)
+		return nvif_rd32(device, 0x001800) & 0x0000000f;
+	else
 	if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA)
 		return (nvif_rd32(device, NV_PEXTDEV_BOOT_0) >> 24) & 0xf;
 	else
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nouveau_connector.c linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nouveau_connector.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nouveau_connector.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nouveau_connector.c	2017-12-20 04:05:01.000000000 -0500
@@ -969,10 +969,13 @@ nouveau_connector_hotplug(struct nvif_no
 
 		NV_DEBUG(drm, "%splugged %s\n", plugged ? "" : "un", name);
 
+		mutex_lock(&drm->dev->mode_config.mutex);
 		if (plugged)
 			drm_helper_connector_dpms(connector, DRM_MODE_DPMS_ON);
 		else
 			drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF);
+		mutex_unlock(&drm->dev->mode_config.mutex);
+
 		drm_helper_hpd_irq_event(connector->dev);
 	}
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nouveau_display.c linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nouveau_display.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nouveau_display.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nouveau_display.c	2017-12-20 04:05:01.000000000 -0500
@@ -370,7 +370,8 @@ nouveau_display_init(struct drm_device *
 		return ret;
 
 	/* enable polling for external displays */
-	drm_kms_helper_poll_enable(dev);
+	if (!dev->mode_config.poll_enabled)
+		drm_kms_helper_poll_enable(dev);
 
 	/* enable hotplug interrupts */
 	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
@@ -634,10 +635,6 @@ nouveau_display_resume(struct drm_device
 		nv_crtc->lut.depth = 0;
 	}
 
-	/* Make sure that drm and hw vblank irqs get resumed if needed. */
-	for (head = 0; head < dev->mode_config.num_crtc; head++)
-		drm_vblank_on(dev, head);
-
 	/* This should ensure we don't hit a locking problem when someone
 	 * wakes us up via a connector.  We should never go into suspend
 	 * while the display is on anyways.
@@ -647,6 +644,10 @@ nouveau_display_resume(struct drm_device
 
 	drm_helper_resume_force_mode(dev);
 
+	/* Make sure that drm and hw vblank irqs get resumed if needed. */
+	for (head = 0; head < dev->mode_config.num_crtc; head++)
+		drm_vblank_on(dev, head);
+
 	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 		struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nouveau_drm.c linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nouveau_drm.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nouveau_drm.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nouveau_drm.c	2017-12-20 04:05:01.000000000 -0500
@@ -308,7 +308,16 @@ static int nouveau_drm_probe(struct pci_
 	bool boot = false;
 	int ret;
 
-	/* remove conflicting drivers (vesafb, efifb etc) */
+	/* We need to check that the chipset is supported before booting
+	 * fbdev off the hardware, as there's no way to put it back.
+	 */
+	ret = nvkm_device_pci_new(pdev, NULL, "error", true, false, 0, &device);
+	if (ret)
+		return ret;
+
+	nvkm_device_del(&device);
+
+	/* Remove conflicting drivers (vesafb, efifb etc). */
 	aper = alloc_apertures(3);
 	if (!aper)
 		return -ENOMEM;
@@ -734,7 +743,10 @@ nouveau_pmops_runtime_resume(struct devi
 	pci_set_master(pdev);
 
 	ret = nouveau_do_resume(drm_dev, true);
-	drm_kms_helper_poll_enable(drm_dev);
+
+	if (!drm_dev->mode_config.poll_enabled)
+		drm_kms_helper_poll_enable(drm_dev);
+
 	/* do magic */
 	nvif_mask(&device->object, 0x088488, (1 << 25), (1 << 25));
 	vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_ON);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nouveau_fbcon.c linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nouveau_fbcon.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nouveau_fbcon.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nouveau_fbcon.c	2017-12-20 04:05:01.000000000 -0500
@@ -557,6 +557,8 @@ nouveau_fbcon_init(struct drm_device *de
 	if (ret)
 		goto fini;
 
+	if (fbcon->helper.fbdev)
+		fbcon->helper.fbdev->pixmap.buf_align = 4;
 	return 0;
 
 fini:
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nouveau_fence.h linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nouveau_fence.h
--- linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nouveau_fence.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nouveau_fence.h	2017-12-20 04:05:01.000000000 -0500
@@ -99,6 +99,7 @@ struct nv84_fence_priv {
 	struct nouveau_bo *bo;
 	struct nouveau_bo *bo_gart;
 	u32 *suspend;
+	struct mutex mutex;
 };
 
 u64  nv84_fence_crtc(struct nouveau_channel *, int);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nouveau_platform.c linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nouveau_platform.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nouveau_platform.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nouveau_platform.c	2017-12-20 04:05:01.000000000 -0500
@@ -24,7 +24,7 @@
 static int nouveau_platform_probe(struct platform_device *pdev)
 {
 	const struct nvkm_device_tegra_func *func;
-	struct nvkm_device *device;
+	struct nvkm_device *device = NULL;
 	struct drm_device *drm;
 	int ret;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nouveau_usif.c linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nouveau_usif.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nouveau_usif.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nouveau_usif.c	2017-12-20 04:05:01.000000000 -0500
@@ -313,7 +313,8 @@ usif_ioctl(struct drm_file *filp, void _
 	if (nvif_unpack(argv->v0, 0, 0, true)) {
 		/* block access to objects not created via this interface */
 		owner = argv->v0.owner;
-		if (argv->v0.object == 0ULL)
+		if (argv->v0.object == 0ULL &&
+		    argv->v0.type != NVIF_IOCTL_V0_DEL)
 			argv->v0.owner = NVDRM_OBJECT_ANY; /* except client */
 		else
 			argv->v0.owner = NVDRM_OBJECT_USIF;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nv04_fbcon.c linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nv04_fbcon.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nv04_fbcon.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nv04_fbcon.c	2017-12-20 04:05:01.000000000 -0500
@@ -82,7 +82,6 @@ nv04_fbcon_imageblit(struct fb_info *inf
 	uint32_t fg;
 	uint32_t bg;
 	uint32_t dsize;
-	uint32_t width;
 	uint32_t *data = (uint32_t *)image->data;
 	int ret;
 
@@ -93,9 +92,6 @@ nv04_fbcon_imageblit(struct fb_info *inf
 	if (ret)
 		return ret;
 
-	width = ALIGN(image->width, 8);
-	dsize = ALIGN(width * image->height, 32) >> 5;
-
 	if (info->fix.visual == FB_VISUAL_TRUECOLOR ||
 	    info->fix.visual == FB_VISUAL_DIRECTCOLOR) {
 		fg = ((uint32_t *) info->pseudo_palette)[image->fg_color];
@@ -111,10 +107,11 @@ nv04_fbcon_imageblit(struct fb_info *inf
 			 ((image->dx + image->width) & 0xffff));
 	OUT_RING(chan, bg);
 	OUT_RING(chan, fg);
-	OUT_RING(chan, (image->height << 16) | width);
+	OUT_RING(chan, (image->height << 16) | ALIGN(image->width, 8));
 	OUT_RING(chan, (image->height << 16) | image->width);
 	OUT_RING(chan, (image->dy << 16) | (image->dx & 0xffff));
 
+	dsize = ALIGN(ALIGN(image->width, 8) * image->height, 32) >> 5;
 	while (dsize) {
 		int iter_len = dsize > 128 ? 128 : dsize;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nv50_fbcon.c linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nv50_fbcon.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nv50_fbcon.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nv50_fbcon.c	2017-12-20 04:05:01.000000000 -0500
@@ -95,7 +95,7 @@ nv50_fbcon_imageblit(struct fb_info *inf
 	struct nouveau_fbdev *nfbdev = info->par;
 	struct nouveau_drm *drm = nouveau_drm(nfbdev->dev);
 	struct nouveau_channel *chan = drm->channel;
-	uint32_t width, dwords, *data = (uint32_t *)image->data;
+	uint32_t dwords, *data = (uint32_t *)image->data;
 	uint32_t mask = ~(~0 >> (32 - info->var.bits_per_pixel));
 	uint32_t *palette = info->pseudo_palette;
 	int ret;
@@ -107,9 +107,6 @@ nv50_fbcon_imageblit(struct fb_info *inf
 	if (ret)
 		return ret;
 
-	width = ALIGN(image->width, 32);
-	dwords = (width * image->height) >> 5;
-
 	BEGIN_NV04(chan, NvSub2D, 0x0814, 2);
 	if (info->fix.visual == FB_VISUAL_TRUECOLOR ||
 	    info->fix.visual == FB_VISUAL_DIRECTCOLOR) {
@@ -128,6 +125,7 @@ nv50_fbcon_imageblit(struct fb_info *inf
 	OUT_RING(chan, 0);
 	OUT_RING(chan, image->dy);
 
+	dwords = ALIGN(ALIGN(image->width, 8) * image->height, 32) >> 5;
 	while (dwords) {
 		int push = dwords > 2047 ? 2047 : dwords;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nv84_fence.c linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nv84_fence.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nv84_fence.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nv84_fence.c	2017-12-20 04:05:01.000000000 -0500
@@ -121,8 +121,10 @@ nv84_fence_context_del(struct nouveau_ch
 	}
 
 	nouveau_bo_wr32(priv->bo, chan->chid * 16 / 4, fctx->base.sequence);
+	mutex_lock(&priv->mutex);
 	nouveau_bo_vma_del(priv->bo, &fctx->vma_gart);
 	nouveau_bo_vma_del(priv->bo, &fctx->vma);
+	mutex_unlock(&priv->mutex);
 	nouveau_fence_context_del(&fctx->base);
 	chan->fence = NULL;
 	nouveau_fence_context_free(&fctx->base);
@@ -148,11 +150,13 @@ nv84_fence_context_new(struct nouveau_ch
 	fctx->base.sync32 = nv84_fence_sync32;
 	fctx->base.sequence = nv84_fence_read(chan);
 
+	mutex_lock(&priv->mutex);
 	ret = nouveau_bo_vma_add(priv->bo, cli->vm, &fctx->vma);
 	if (ret == 0) {
 		ret = nouveau_bo_vma_add(priv->bo_gart, cli->vm,
 					&fctx->vma_gart);
 	}
+	mutex_unlock(&priv->mutex);
 
 	/* map display semaphore buffers into channel's vm */
 	for (i = 0; !ret && i < chan->drm->dev->mode_config.num_crtc; i++) {
@@ -232,6 +236,8 @@ nv84_fence_create(struct nouveau_drm *dr
 	priv->base.context_base = fence_context_alloc(priv->base.contexts);
 	priv->base.uevent = true;
 
+	mutex_init(&priv->mutex);
+
 	/* Use VRAM if there is any ; otherwise fallback to system memory */
 	domain = drm->device.info.ram_size != 0 ? TTM_PL_FLAG_VRAM :
 			 /*
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nvc0_fbcon.c linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nvc0_fbcon.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nvc0_fbcon.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nvc0_fbcon.c	2017-12-20 04:05:01.000000000 -0500
@@ -95,7 +95,7 @@ nvc0_fbcon_imageblit(struct fb_info *inf
 	struct nouveau_fbdev *nfbdev = info->par;
 	struct nouveau_drm *drm = nouveau_drm(nfbdev->dev);
 	struct nouveau_channel *chan = drm->channel;
-	uint32_t width, dwords, *data = (uint32_t *)image->data;
+	uint32_t dwords, *data = (uint32_t *)image->data;
 	uint32_t mask = ~(~0 >> (32 - info->var.bits_per_pixel));
 	uint32_t *palette = info->pseudo_palette;
 	int ret;
@@ -107,9 +107,6 @@ nvc0_fbcon_imageblit(struct fb_info *inf
 	if (ret)
 		return ret;
 
-	width = ALIGN(image->width, 32);
-	dwords = (width * image->height) >> 5;
-
 	BEGIN_NVC0(chan, NvSub2D, 0x0814, 2);
 	if (info->fix.visual == FB_VISUAL_TRUECOLOR ||
 	    info->fix.visual == FB_VISUAL_DIRECTCOLOR) {
@@ -128,6 +125,7 @@ nvc0_fbcon_imageblit(struct fb_info *inf
 	OUT_RING  (chan, 0);
 	OUT_RING  (chan, image->dy);
 
+	dwords = ALIGN(ALIGN(image->width, 8) * image->height, 32) >> 5;
 	while (dwords) {
 		int push = dwords > 2047 ? 2047 : dwords;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nvkm/core/ramht.c linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nvkm/core/ramht.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nvkm/core/ramht.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nvkm/core/ramht.c	2017-12-20 04:05:01.000000000 -0500
@@ -131,7 +131,7 @@ nvkm_ramht_del(struct nvkm_ramht **pramh
 	struct nvkm_ramht *ramht = *pramht;
 	if (ramht) {
 		nvkm_gpuobj_del(&ramht->gpuobj);
-		kfree(*pramht);
+		vfree(*pramht);
 		*pramht = NULL;
 	}
 }
@@ -143,8 +143,8 @@ nvkm_ramht_new(struct nvkm_device *devic
 	struct nvkm_ramht *ramht;
 	int ret, i;
 
-	if (!(ramht = *pramht = kzalloc(sizeof(*ramht) + (size >> 3) *
-					sizeof(*ramht->data), GFP_KERNEL)))
+	if (!(ramht = *pramht = vzalloc(sizeof(*ramht) +
+					(size >> 3) * sizeof(*ramht->data))))
 		return -ENOMEM;
 
 	ramht->device = device;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nvkm/engine/bsp/g84.c linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nvkm/engine/bsp/g84.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nvkm/engine/bsp/g84.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nvkm/engine/bsp/g84.c	2017-12-20 04:05:01.000000000 -0500
@@ -40,5 +40,5 @@ int
 g84_bsp_new(struct nvkm_device *device, int index, struct nvkm_engine **pengine)
 {
 	return nvkm_xtensa_new_(&g84_bsp, device, index,
-				true, 0x103000, pengine);
+				device->chipset != 0x92, 0x103000, pengine);
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nvkm/engine/device/base.c linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nvkm/engine/device/base.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nvkm/engine/device/base.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nvkm/engine/device/base.c	2017-12-20 04:05:01.000000000 -0500
@@ -714,7 +714,7 @@ nv4a_chipset = {
 	.i2c = nv04_i2c_new,
 	.imem = nv40_instmem_new,
 	.mc = nv44_mc_new,
-	.mmu = nv44_mmu_new,
+	.mmu = nv04_mmu_new,
 	.pci = nv40_pci_new,
 	.therm = nv40_therm_new,
 	.timer = nv41_timer_new,
@@ -1833,7 +1833,7 @@ nvf1_chipset = {
 	.fb = gk104_fb_new,
 	.fuse = gf100_fuse_new,
 	.gpio = gk104_gpio_new,
-	.i2c = gf119_i2c_new,
+	.i2c = gk104_i2c_new,
 	.ibus = gk104_ibus_new,
 	.imem = nv50_instmem_new,
 	.ltc = gk104_ltc_new,
@@ -1941,7 +1941,7 @@ nv117_chipset = {
 	.fb = gm107_fb_new,
 	.fuse = gm107_fuse_new,
 	.gpio = gk104_gpio_new,
-	.i2c = gf119_i2c_new,
+	.i2c = gk104_i2c_new,
 	.ibus = gk104_ibus_new,
 	.imem = nv50_instmem_new,
 	.ltc = gm107_ltc_new,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c	2017-12-20 04:05:01.000000000 -0500
@@ -252,32 +252,40 @@ nvkm_device_tegra_new(const struct nvkm_
 
 	if (!(tdev = kzalloc(sizeof(*tdev), GFP_KERNEL)))
 		return -ENOMEM;
-	*pdevice = &tdev->device;
+
 	tdev->func = func;
 	tdev->pdev = pdev;
 	tdev->irq = -1;
 
 	tdev->vdd = devm_regulator_get(&pdev->dev, "vdd");
-	if (IS_ERR(tdev->vdd))
-		return PTR_ERR(tdev->vdd);
+	if (IS_ERR(tdev->vdd)) {
+		ret = PTR_ERR(tdev->vdd);
+		goto free;
+	}
 
 	tdev->rst = devm_reset_control_get(&pdev->dev, "gpu");
-	if (IS_ERR(tdev->rst))
-		return PTR_ERR(tdev->rst);
+	if (IS_ERR(tdev->rst)) {
+		ret = PTR_ERR(tdev->rst);
+		goto free;
+	}
 
 	tdev->clk = devm_clk_get(&pdev->dev, "gpu");
-	if (IS_ERR(tdev->clk))
-		return PTR_ERR(tdev->clk);
+	if (IS_ERR(tdev->clk)) {
+		ret = PTR_ERR(tdev->clk);
+		goto free;
+	}
 
 	tdev->clk_pwr = devm_clk_get(&pdev->dev, "pwr");
-	if (IS_ERR(tdev->clk_pwr))
-		return PTR_ERR(tdev->clk_pwr);
+	if (IS_ERR(tdev->clk_pwr)) {
+		ret = PTR_ERR(tdev->clk_pwr);
+		goto free;
+	}
 
 	nvkm_device_tegra_probe_iommu(tdev);
 
 	ret = nvkm_device_tegra_power_up(tdev);
 	if (ret)
-		return ret;
+		goto remove;
 
 	tdev->gpu_speedo = tegra_sku_info.gpu_speedo_value;
 	ret = nvkm_device_ctor(&nvkm_device_tegra_func, NULL, &pdev->dev,
@@ -285,9 +293,19 @@ nvkm_device_tegra_new(const struct nvkm_
 			       cfg, dbg, detect, mmio, subdev_mask,
 			       &tdev->device);
 	if (ret)
-		return ret;
+		goto powerdown;
+
+	*pdevice = &tdev->device;
 
 	return 0;
+
+powerdown:
+	nvkm_device_tegra_power_down(tdev);
+remove:
+	nvkm_device_tegra_remove_iommu(tdev);
+free:
+	kfree(tdev);
+	return ret;
 }
 #else
 int
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/dport.c linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/dport.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/dport.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/dport.c	2017-12-20 04:05:01.000000000 -0500
@@ -328,6 +328,7 @@ nvkm_dp_train(struct work_struct *w)
 		.outp = outp,
 	}, *dp = &_dp;
 	u32 datarate = 0;
+	u8  pwr;
 	int ret;
 
 	if (!outp->base.info.location && disp->func->sor.magic)
@@ -355,6 +356,15 @@ nvkm_dp_train(struct work_struct *w)
 	/* disable link interrupt handling during link training */
 	nvkm_notify_put(&outp->irq);
 
+	/* ensure sink is not in a low-power state */
+	if (!nvkm_rdaux(outp->aux, DPCD_SC00, &pwr, 1)) {
+		if ((pwr & DPCD_SC00_SET_POWER) != DPCD_SC00_SET_POWER_D0) {
+			pwr &= ~DPCD_SC00_SET_POWER;
+			pwr |=  DPCD_SC00_SET_POWER_D0;
+			nvkm_wraux(outp->aux, DPCD_SC00, &pwr, 1);
+		}
+	}
+
 	/* enable down-spreading and execute pre-train script from vbios */
 	dp_link_train_init(dp, outp->dpcd[3] & 0x01);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/dport.h linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/dport.h
--- linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/dport.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/dport.h	2017-12-20 04:05:01.000000000 -0500
@@ -71,5 +71,11 @@
 #define DPCD_LS0C_LANE1_POST_CURSOR2                                       0x0c
 #define DPCD_LS0C_LANE0_POST_CURSOR2                                       0x03
 
+/* DPCD Sink Control */
+#define DPCD_SC00                                                       0x00600
+#define DPCD_SC00_SET_POWER                                                0x03
+#define DPCD_SC00_SET_POWER_D0                                             0x01
+#define DPCD_SC00_SET_POWER_D3                                             0x03
+
 void nvkm_dp_train(struct work_struct *);
 #endif
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/hdagt215.c linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/hdagt215.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/hdagt215.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/hdagt215.c	2017-12-20 04:05:01.000000000 -0500
@@ -59,7 +59,7 @@ gt215_hda_eld(NV50_DISP_MTHD_V1)
 			);
 		}
 		for (i = 0; i < size; i++)
-			nvkm_wr32(device, 0x61c440 + soff, (i << 8) | args->v0.data[0]);
+			nvkm_wr32(device, 0x61c440 + soff, (i << 8) | args->v0.data[i]);
 		for (; i < 0x60; i++)
 			nvkm_wr32(device, 0x61c440 + soff, (i << 8));
 		nvkm_mask(device, 0x61c448 + soff, 0x80000003, 0x80000003);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/sorgf119.c linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/sorgf119.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/sorgf119.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/sorgf119.c	2017-12-20 04:05:01.000000000 -0500
@@ -40,8 +40,8 @@ static int
 gf119_sor_dp_pattern(struct nvkm_output_dp *outp, int pattern)
 {
 	struct nvkm_device *device = outp->base.disp->engine.subdev.device;
-	const u32 loff = gf119_sor_loff(outp);
-	nvkm_mask(device, 0x61c110 + loff, 0x0f0f0f0f, 0x01010101 * pattern);
+	const u32 soff = gf119_sor_soff(outp);
+	nvkm_mask(device, 0x61c110 + soff, 0x0f0f0f0f, 0x01010101 * pattern);
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nvkm/engine/fifo/dmanv04.c linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nvkm/engine/fifo/dmanv04.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nvkm/engine/fifo/dmanv04.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nvkm/engine/fifo/dmanv04.c	2017-12-20 04:05:01.000000000 -0500
@@ -36,7 +36,10 @@ nv04_fifo_dma_object_dtor(struct nvkm_fi
 {
 	struct nv04_fifo_chan *chan = nv04_fifo_chan(base);
 	struct nvkm_instmem *imem = chan->fifo->base.engine.subdev.device->imem;
+
+	mutex_lock(&chan->fifo->base.engine.subdev.mutex);
 	nvkm_ramht_remove(imem->ramht, cookie);
+	mutex_unlock(&chan->fifo->base.engine.subdev.mutex);
 }
 
 static int
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gpfifogf100.c linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gpfifogf100.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gpfifogf100.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gpfifogf100.c	2017-12-20 04:05:01.000000000 -0500
@@ -59,6 +59,7 @@ gf100_fifo_gpfifo_engine_fini(struct nvk
 	struct nvkm_gpuobj *inst = chan->base.inst;
 	int ret = 0;
 
+	mutex_lock(&subdev->mutex);
 	nvkm_wr32(device, 0x002634, chan->base.chid);
 	if (nvkm_msec(device, 2000,
 		if (nvkm_rd32(device, 0x002634) == chan->base.chid)
@@ -66,10 +67,12 @@ gf100_fifo_gpfifo_engine_fini(struct nvk
 	) < 0) {
 		nvkm_error(subdev, "channel %d [%s] kick timeout\n",
 			   chan->base.chid, chan->base.object.client->name);
-		ret = -EBUSY;
-		if (suspend)
-			return ret;
+		ret = -ETIMEDOUT;
 	}
+	mutex_unlock(&subdev->mutex);
+
+	if (ret && suspend)
+		return ret;
 
 	if (offset) {
 		nvkm_kmap(inst);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gpfifogk104.c linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gpfifogk104.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gpfifogk104.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gpfifogk104.c	2017-12-20 04:05:01.000000000 -0500
@@ -39,7 +39,9 @@ gk104_fifo_gpfifo_kick(struct gk104_fifo
 	struct nvkm_subdev *subdev = &fifo->base.engine.subdev;
 	struct nvkm_device *device = subdev->device;
 	struct nvkm_client *client = chan->base.object.client;
+	int ret = 0;
 
+	mutex_lock(&subdev->mutex);
 	nvkm_wr32(device, 0x002634, chan->base.chid);
 	if (nvkm_msec(device, 2000,
 		if (!(nvkm_rd32(device, 0x002634) & 0x00100000))
@@ -47,10 +49,10 @@ gk104_fifo_gpfifo_kick(struct gk104_fifo
 	) < 0) {
 		nvkm_error(subdev, "channel %d [%s] kick timeout\n",
 			   chan->base.chid, client->name);
-		return -EBUSY;
+		ret = -ETIMEDOUT;
 	}
-
-	return 0;
+	mutex_unlock(&subdev->mutex);
+	return ret;
 }
 
 static u32
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nvkm/engine/gr/gf100.c linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nvkm/engine/gr/gf100.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nvkm/engine/gr/gf100.c	2016-01-10 20:56:53.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nvkm/engine/gr/gf100.c	2017-12-20 11:10:49.000000000 -0500
@@ -874,22 +874,41 @@ gf100_gr_trap_gpc_rop(struct gf100_gr *g
 }
 
 static const struct nvkm_enum gf100_mp_warp_error[] = {
-	{ 0x00, "NO_ERROR" },
-	{ 0x01, "STACK_MISMATCH" },
+	{ 0x01, "STACK_ERROR" },
+	{ 0x02, "API_STACK_ERROR" },
+	{ 0x03, "RET_EMPTY_STACK_ERROR" },
+	{ 0x04, "PC_WRAP" },
 	{ 0x05, "MISALIGNED_PC" },
-	{ 0x08, "MISALIGNED_GPR" },
-	{ 0x09, "INVALID_OPCODE" },
-	{ 0x0d, "GPR_OUT_OF_BOUNDS" },
-	{ 0x0e, "MEM_OUT_OF_BOUNDS" },
-	{ 0x0f, "UNALIGNED_MEM_ACCESS" },
+	{ 0x06, "PC_OVERFLOW" },
+	{ 0x07, "MISALIGNED_IMMC_ADDR" },
+	{ 0x08, "MISALIGNED_REG" },
+	{ 0x09, "ILLEGAL_INSTR_ENCODING" },
+	{ 0x0a, "ILLEGAL_SPH_INSTR_COMBO" },
+	{ 0x0b, "ILLEGAL_INSTR_PARAM" },
+	{ 0x0c, "INVALID_CONST_ADDR" },
+	{ 0x0d, "OOR_REG" },
+	{ 0x0e, "OOR_ADDR" },
+	{ 0x0f, "MISALIGNED_ADDR" },
 	{ 0x10, "INVALID_ADDR_SPACE" },
-	{ 0x11, "INVALID_PARAM" },
+	{ 0x11, "ILLEGAL_INSTR_PARAM2" },
+	{ 0x12, "INVALID_CONST_ADDR_LDC" },
+	{ 0x13, "GEOMETRY_SM_ERROR" },
+	{ 0x14, "DIVERGENT" },
+	{ 0x15, "WARP_EXIT" },
 	{}
 };
 
 static const struct nvkm_bitfield gf100_mp_global_error[] = {
+	{ 0x00000001, "SM_TO_SM_FAULT" },
+	{ 0x00000002, "L1_ERROR" },
 	{ 0x00000004, "MULTIPLE_WARP_ERRORS" },
-	{ 0x00000008, "OUT_OF_STACK_SPACE" },
+	{ 0x00000008, "PHYSICAL_STACK_OVERFLOW" },
+	{ 0x00000010, "BPT_INT" },
+	{ 0x00000020, "BPT_PAUSE" },
+	{ 0x00000040, "SINGLE_STEP_COMPLETE" },
+	{ 0x20000000, "ECC_SEC_ERROR" },
+	{ 0x40000000, "ECC_DED_ERROR" },
+	{ 0x80000000, "TIMEOUT" },
 	{}
 };
 
@@ -1717,6 +1736,8 @@ gf100_gr_init(struct gf100_gr *gr)
 
 	gf100_gr_mmio(gr, gr->func->mmio);
 
+	nvkm_mask(device, TPC_UNIT(0, 0, 0x05c), 0x00000001, 0x00000001);
+
 	memcpy(tpcnr, gr->tpc_nr, sizeof(gr->tpc_nr));
 	for (i = 0, gpc = -1; i < gr->tpc_total; i++) {
 		do {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nvkm/engine/gr/nv30.c linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nvkm/engine/gr/nv30.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nvkm/engine/gr/nv30.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nvkm/engine/gr/nv30.c	2017-12-20 04:05:01.000000000 -0500
@@ -76,8 +76,8 @@ nv30_gr_chan_new(struct nvkm_gr *base, s
 		nvkm_wo32(chan->inst, i, 0x00040004);
 	for (i = 0x1f18; i <= 0x3088 ; i += 16) {
 		nvkm_wo32(chan->inst, i + 0, 0x10700ff9);
-		nvkm_wo32(chan->inst, i + 1, 0x0436086c);
-		nvkm_wo32(chan->inst, i + 2, 0x000c001b);
+		nvkm_wo32(chan->inst, i + 4, 0x0436086c);
+		nvkm_wo32(chan->inst, i + 8, 0x000c001b);
 	}
 	for (i = 0x30b8; i < 0x30c8; i += 4)
 		nvkm_wo32(chan->inst, i, 0x0000ffff);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nvkm/engine/gr/nv34.c linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nvkm/engine/gr/nv34.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nvkm/engine/gr/nv34.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nvkm/engine/gr/nv34.c	2017-12-20 04:05:01.000000000 -0500
@@ -75,8 +75,8 @@ nv34_gr_chan_new(struct nvkm_gr *base, s
 		nvkm_wo32(chan->inst, i, 0x00040004);
 	for (i = 0x15ac; i <= 0x271c ; i += 16) {
 		nvkm_wo32(chan->inst, i + 0, 0x10700ff9);
-		nvkm_wo32(chan->inst, i + 1, 0x0436086c);
-		nvkm_wo32(chan->inst, i + 2, 0x000c001b);
+		nvkm_wo32(chan->inst, i + 4, 0x0436086c);
+		nvkm_wo32(chan->inst, i + 8, 0x000c001b);
 	}
 	for (i = 0x274c; i < 0x275c; i += 4)
 		nvkm_wo32(chan->inst, i, 0x0000ffff);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nvkm/engine/mpeg/nv31.c linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nvkm/engine/mpeg/nv31.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nvkm/engine/mpeg/nv31.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nvkm/engine/mpeg/nv31.c	2017-12-20 04:05:01.000000000 -0500
@@ -198,7 +198,7 @@ nv31_mpeg_intr(struct nvkm_engine *engin
 		}
 
 		if (type == 0x00000010) {
-			if (!nv31_mpeg_mthd(mpeg, mthd, data))
+			if (nv31_mpeg_mthd(mpeg, mthd, data))
 				show &= ~0x01000000;
 		}
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nvkm/engine/mpeg/nv44.c linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nvkm/engine/mpeg/nv44.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nvkm/engine/mpeg/nv44.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nvkm/engine/mpeg/nv44.c	2017-12-20 04:05:01.000000000 -0500
@@ -172,7 +172,7 @@ nv44_mpeg_intr(struct nvkm_engine *engin
 		}
 
 		if (type == 0x00000010) {
-			if (!nv44_mpeg_mthd(subdev->device, mthd, data))
+			if (nv44_mpeg_mthd(subdev->device, mthd, data))
 				show &= ~0x01000000;
 		}
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nvkm/engine/pm/nv40.c linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nvkm/engine/pm/nv40.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nvkm/engine/pm/nv40.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nvkm/engine/pm/nv40.c	2017-12-20 04:05:01.000000000 -0500
@@ -59,9 +59,11 @@ static void
 nv40_perfctr_next(struct nvkm_pm *pm, struct nvkm_perfdom *dom)
 {
 	struct nvkm_device *device = pm->engine.subdev.device;
-	if (pm->sequence != pm->sequence) {
+	struct nv40_pm *nv40pm = container_of(pm, struct nv40_pm, base);
+
+	if (nv40pm->sequence != pm->sequence) {
 		nvkm_wr32(device, 0x400084, 0x00000020);
-		pm->sequence = pm->sequence;
+		nv40pm->sequence = pm->sequence;
 	}
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/bar/gf100.c linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/bar/gf100.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/bar/gf100.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/bar/gf100.c	2017-12-20 04:05:01.000000000 -0500
@@ -129,7 +129,7 @@ gf100_bar_init(struct nvkm_bar *base)
 
 	if (bar->bar[0].mem) {
 		addr = nvkm_memory_addr(bar->bar[0].mem) >> 12;
-		nvkm_wr32(device, 0x001714, 0xc0000000 | addr);
+		nvkm_wr32(device, 0x001714, 0x80000000 | addr);
 	}
 
 	return 0;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/bios/priv.h linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/bios/priv.h
--- linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/bios/priv.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/bios/priv.h	2017-12-20 04:05:01.000000000 -0500
@@ -12,6 +12,7 @@ struct nvbios_source {
 	bool rw;
 	bool ignore_checksum;
 	bool no_pcir;
+	bool require_checksum;
 };
 
 int nvbios_extend(struct nvkm_bios *, u32 length);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/bios/shadowacpi.c linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/bios/shadowacpi.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/bios/shadowacpi.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/bios/shadowacpi.c	2017-12-20 04:05:01.000000000 -0500
@@ -99,6 +99,7 @@ nvbios_acpi_fast = {
 	.init = acpi_init,
 	.read = acpi_read_fast,
 	.rw = false,
+	.require_checksum = true,
 };
 
 const struct nvbios_source
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/bios/shadow.c linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/bios/shadow.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/bios/shadow.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/bios/shadow.c	2017-12-20 04:05:01.000000000 -0500
@@ -86,9 +86,12 @@ shadow_image(struct nvkm_bios *bios, int
 		    nvbios_checksum(&bios->data[image.base], image.size)) {
 			nvkm_debug(subdev, "%08x: checksum failed\n",
 				   image.base);
-			if (mthd->func->rw)
+			if (!mthd->func->require_checksum) {
+				if (mthd->func->rw)
+					score += 1;
 				score += 1;
-			score += 1;
+			} else
+				return 0;
 		} else {
 			score += 3;
 		}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/base.c linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/base.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/base.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/base.c	2017-12-20 04:05:01.000000000 -0500
@@ -47,8 +47,10 @@ nvkm_ltc_tags_clear(struct nvkm_ltc *ltc
 
 	BUG_ON((first > limit) || (limit >= ltc->num_tags));
 
+	mutex_lock(&ltc->subdev.mutex);
 	ltc->func->cbc_clear(ltc, first, limit);
 	ltc->func->cbc_wait(ltc);
+	mutex_unlock(&ltc->subdev.mutex);
 }
 
 int
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/base.c linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/base.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/base.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/base.c	2017-12-20 04:05:01.000000000 -0500
@@ -240,6 +240,8 @@ nvkm_vm_unmap_pgt(struct nvkm_vm *vm, in
 			mmu->func->map_pgt(vpgd->obj, pde, vpgt->mem);
 		}
 
+		mmu->func->flush(vm);
+
 		nvkm_memory_del(&pgt);
 	}
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/pci/base.c linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/pci/base.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/pci/base.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/pci/base.c	2017-12-20 04:05:01.000000000 -0500
@@ -180,6 +180,10 @@ nvkm_pci_new_(const struct nvkm_pci_func
 		}
 	}
 
+#ifdef __BIG_ENDIAN
+	pci->msi = false;
+#endif
+
 	pci->msi = nvkm_boolopt(device->cfgopt, "NvMSI", pci->msi);
 	if (pci->msi && func->msi_rearm) {
 		pci->msi = pci_enable_msi(pci->pdev) == 0;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/therm/base.c linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/therm/base.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/therm/base.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/therm/base.c	2017-12-20 04:05:01.000000000 -0500
@@ -130,7 +130,7 @@ nvkm_therm_update(struct nvkm_therm *the
 		poll = false;
 	}
 
-	if (list_empty(&therm->alarm.head) && poll)
+	if (poll)
 		nvkm_timer_alarm(tmr, 1000000000ULL, &therm->alarm);
 	spin_unlock_irqrestore(&therm->lock, flags);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/therm/fan.c linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/therm/fan.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/therm/fan.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/therm/fan.c	2017-12-20 04:05:01.000000000 -0500
@@ -83,7 +83,7 @@ nvkm_fan_update(struct nvkm_fan *fan, bo
 	spin_unlock_irqrestore(&fan->lock, flags);
 
 	/* schedule next fan update, if not at target speed already */
-	if (list_empty(&fan->alarm.head) && target != duty) {
+	if (target != duty) {
 		u16 bump_period = fan->bios.bump_period;
 		u16 slow_down_period = fan->bios.slow_down_period;
 		u64 delay;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/therm/fantog.c linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/therm/fantog.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/therm/fantog.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/therm/fantog.c	2017-12-20 04:05:01.000000000 -0500
@@ -53,7 +53,7 @@ nvkm_fantog_update(struct nvkm_fantog *f
 	duty = !nvkm_gpio_get(gpio, 0, DCB_GPIO_FAN, 0xff);
 	nvkm_gpio_set(gpio, 0, DCB_GPIO_FAN, 0xff, duty);
 
-	if (list_empty(&fan->alarm.head) && percent != (duty * 100)) {
+	if (percent != (duty * 100)) {
 		u64 next_change = (percent * fan->period_us) / 100;
 		if (!duty)
 			next_change = fan->period_us - next_change;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/therm/temp.c linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/therm/temp.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/therm/temp.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/therm/temp.c	2017-12-20 04:05:01.000000000 -0500
@@ -185,7 +185,7 @@ alarm_timer_callback(struct nvkm_alarm *
 	spin_unlock_irqrestore(&therm->sensor.alarm_program_lock, flags);
 
 	/* schedule the next poll in one second */
-	if (therm->func->temp_get(therm) >= 0 && list_empty(&alarm->head))
+	if (therm->func->temp_get(therm) >= 0)
 		nvkm_timer_alarm(tmr, 1000000000ULL, alarm);
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/timer/base.c linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/timer/base.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/timer/base.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/timer/base.c	2017-12-20 04:05:01.000000000 -0500
@@ -36,25 +36,32 @@ nvkm_timer_alarm_trigger(struct nvkm_tim
 	unsigned long flags;
 	LIST_HEAD(exec);
 
-	/* move any due alarms off the pending list */
+	/* Process pending alarms. */
 	spin_lock_irqsave(&tmr->lock, flags);
 	list_for_each_entry_safe(alarm, atemp, &tmr->alarms, head) {
-		if (alarm->timestamp <= nvkm_timer_read(tmr))
-			list_move_tail(&alarm->head, &exec);
+		/* Have we hit the earliest alarm that hasn't gone off? */
+		if (alarm->timestamp > nvkm_timer_read(tmr)) {
+			/* Schedule it.  If we didn't race, we're done. */
+			tmr->func->alarm_init(tmr, alarm->timestamp);
+			if (alarm->timestamp > nvkm_timer_read(tmr))
+				break;
+		}
+
+		/* Move to completed list.  We'll drop the lock before
+		 * executing the callback so it can reschedule itself.
+		 */
+		list_del_init(&alarm->head);
+		list_add(&alarm->exec, &exec);
 	}
 
-	/* reschedule interrupt for next alarm time */
-	if (!list_empty(&tmr->alarms)) {
-		alarm = list_first_entry(&tmr->alarms, typeof(*alarm), head);
-		tmr->func->alarm_init(tmr, alarm->timestamp);
-	} else {
+	/* Shut down interrupt if no more pending alarms. */
+	if (list_empty(&tmr->alarms))
 		tmr->func->alarm_fini(tmr);
-	}
 	spin_unlock_irqrestore(&tmr->lock, flags);
 
-	/* execute any pending alarm handlers */
-	list_for_each_entry_safe(alarm, atemp, &exec, head) {
-		list_del_init(&alarm->head);
+	/* Execute completed callbacks. */
+	list_for_each_entry_safe(alarm, atemp, &exec, exec) {
+		list_del(&alarm->exec);
 		alarm->func(alarm);
 	}
 }
@@ -65,24 +72,37 @@ nvkm_timer_alarm(struct nvkm_timer *tmr,
 	struct nvkm_alarm *list;
 	unsigned long flags;
 
-	alarm->timestamp = nvkm_timer_read(tmr) + nsec;
-
-	/* append new alarm to list, in soonest-alarm-first order */
+	/* Remove alarm from pending list.
+	 *
+	 * This both protects against the corruption of the list,
+	 * and implements alarm rescheduling/cancellation.
+	 */
 	spin_lock_irqsave(&tmr->lock, flags);
-	if (!nsec) {
-		if (!list_empty(&alarm->head))
-			list_del(&alarm->head);
-	} else {
+	list_del_init(&alarm->head);
+
+	if (nsec) {
+		/* Insert into pending list, ordered earliest to latest. */
+		alarm->timestamp = nvkm_timer_read(tmr) + nsec;
 		list_for_each_entry(list, &tmr->alarms, head) {
 			if (list->timestamp > alarm->timestamp)
 				break;
 		}
+
 		list_add_tail(&alarm->head, &list->head);
+
+		/* Update HW if this is now the earliest alarm. */
+		list = list_first_entry(&tmr->alarms, typeof(*list), head);
+		if (list == alarm) {
+			tmr->func->alarm_init(tmr, alarm->timestamp);
+			/* This shouldn't happen if callers aren't stupid.
+			 *
+			 * Worst case scenario is that it'll take roughly
+			 * 4 seconds for the next alarm to trigger.
+			 */
+			WARN_ON(alarm->timestamp <= nvkm_timer_read(tmr));
+		}
 	}
 	spin_unlock_irqrestore(&tmr->lock, flags);
-
-	/* process pending alarms */
-	nvkm_timer_alarm_trigger(tmr);
 }
 
 void
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/timer/nv04.c linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/timer/nv04.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/timer/nv04.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/timer/nv04.c	2017-12-20 04:05:01.000000000 -0500
@@ -76,8 +76,8 @@ nv04_timer_intr(struct nvkm_timer *tmr)
 	u32 stat = nvkm_rd32(device, NV04_PTIMER_INTR_0);
 
 	if (stat & 0x00000001) {
-		nvkm_timer_alarm_trigger(tmr);
 		nvkm_wr32(device, NV04_PTIMER_INTR_0, 0x00000001);
+		nvkm_timer_alarm_trigger(tmr);
 		stat &= ~0x00000001;
 	}
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/omapdrm/omap_gem_dmabuf.c linux-libre-4.4.107-gnu/drivers/gpu/drm/omapdrm/omap_gem_dmabuf.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/omapdrm/omap_gem_dmabuf.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/omapdrm/omap_gem_dmabuf.c	2017-12-20 04:05:01.000000000 -0500
@@ -142,9 +142,6 @@ static int omap_gem_dmabuf_mmap(struct d
 	struct drm_gem_object *obj = buffer->priv;
 	int ret = 0;
 
-	if (WARN_ON(!obj->filp))
-		return -EINVAL;
-
 	ret = drm_gem_mmap_obj(obj, omap_gem_mmap_size(obj), vma);
 	if (ret < 0)
 		return ret;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/panel/panel-simple.c linux-libre-4.4.107-gnu/drivers/gpu/drm/panel/panel-simple.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/panel/panel-simple.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/panel/panel-simple.c	2017-12-20 04:05:01.000000000 -0500
@@ -352,6 +352,7 @@ static int panel_simple_remove(struct de
 	drm_panel_remove(&panel->base);
 
 	panel_simple_disable(&panel->base);
+	panel_simple_unprepare(&panel->base);
 
 	if (panel->ddc)
 		put_device(&panel->ddc->dev);
@@ -367,6 +368,7 @@ static void panel_simple_shutdown(struct
 	struct panel_simple *panel = dev_get_drvdata(dev);
 
 	panel_simple_disable(&panel->base);
+	panel_simple_unprepare(&panel->base);
 }
 
 static const struct drm_display_mode ampire_am800480r3tmqwa1h_mode = {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/qxl/qxl_display.c linux-libre-4.4.107-gnu/drivers/gpu/drm/qxl/qxl_display.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/qxl/qxl_display.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/qxl/qxl_display.c	2017-12-20 04:05:01.000000000 -0500
@@ -375,10 +375,15 @@ static int qxl_crtc_cursor_set2(struct d
 
 	qxl_bo_kunmap(user_bo);
 
+	qcrtc->cur_x += qcrtc->hot_spot_x - hot_x;
+	qcrtc->cur_y += qcrtc->hot_spot_y - hot_y;
+	qcrtc->hot_spot_x = hot_x;
+	qcrtc->hot_spot_y = hot_y;
+
 	cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release);
 	cmd->type = QXL_CURSOR_SET;
-	cmd->u.set.position.x = qcrtc->cur_x;
-	cmd->u.set.position.y = qcrtc->cur_y;
+	cmd->u.set.position.x = qcrtc->cur_x + qcrtc->hot_spot_x;
+	cmd->u.set.position.y = qcrtc->cur_y + qcrtc->hot_spot_y;
 
 	cmd->u.set.shape = qxl_bo_physical_address(qdev, cursor_bo, 0);
 
@@ -441,8 +446,8 @@ static int qxl_crtc_cursor_move(struct d
 
 	cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release);
 	cmd->type = QXL_CURSOR_MOVE;
-	cmd->u.position.x = qcrtc->cur_x;
-	cmd->u.position.y = qcrtc->cur_y;
+	cmd->u.position.x = qcrtc->cur_x + qcrtc->hot_spot_x;
+	cmd->u.position.y = qcrtc->cur_y + qcrtc->hot_spot_y;
 	qxl_release_unmap(qdev, release, &cmd->release_info);
 
 	qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/qxl/qxl_draw.c linux-libre-4.4.107-gnu/drivers/gpu/drm/qxl/qxl_draw.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/qxl/qxl_draw.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/qxl/qxl_draw.c	2017-12-20 04:05:01.000000000 -0500
@@ -136,6 +136,8 @@ static int qxl_palette_create_1bit(struc
 				 * correctly globaly, since that would require
 				 * tracking all of our palettes. */
 	ret = qxl_bo_kmap(palette_bo, (void **)&pal);
+	if (ret)
+		return ret;
 	pal->num_ents = 2;
 	pal->unique = unique++;
 	if (visual == FB_VISUAL_TRUECOLOR || visual == FB_VISUAL_DIRECTCOLOR) {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/qxl/qxl_drv.h linux-libre-4.4.107-gnu/drivers/gpu/drm/qxl/qxl_drv.h
--- linux-libre-4.4-gnu/drivers/gpu/drm/qxl/qxl_drv.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/qxl/qxl_drv.h	2017-12-20 04:05:01.000000000 -0500
@@ -135,6 +135,8 @@ struct qxl_crtc {
 	int index;
 	int cur_x;
 	int cur_y;
+	int hot_spot_x;
+	int hot_spot_y;
 };
 
 struct qxl_output {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/qxl/qxl_ioctl.c linux-libre-4.4.107-gnu/drivers/gpu/drm/qxl/qxl_ioctl.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/qxl/qxl_ioctl.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/qxl/qxl_ioctl.c	2017-12-20 04:05:01.000000000 -0500
@@ -168,7 +168,8 @@ static int qxl_process_single_command(st
 		       cmd->command_size))
 		return -EFAULT;
 
-	reloc_info = kmalloc(sizeof(struct qxl_reloc_info) * cmd->relocs_num, GFP_KERNEL);
+	reloc_info = kmalloc_array(cmd->relocs_num,
+				   sizeof(struct qxl_reloc_info), GFP_KERNEL);
 	if (!reloc_info)
 		return -ENOMEM;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/radeon/atombios_crtc.c linux-libre-4.4.107-gnu/drivers/gpu/drm/radeon/atombios_crtc.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/radeon/atombios_crtc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/radeon/atombios_crtc.c	2017-12-20 04:05:01.000000000 -0500
@@ -275,6 +275,8 @@ void atombios_crtc_dpms(struct drm_crtc
 			atombios_enable_crtc_memreq(crtc, ATOM_ENABLE);
 		atombios_blank_crtc(crtc, ATOM_DISABLE);
 		drm_vblank_post_modeset(dev, radeon_crtc->crtc_id);
+		/* Make sure vblank interrupt is still enabled if needed */
+		radeon_irq_set(rdev);
 		radeon_crtc_load_lut(crtc);
 		break;
 	case DRM_MODE_DPMS_STANDBY:
@@ -1739,6 +1741,7 @@ static u32 radeon_get_pll_use_mask(struc
 static int radeon_get_shared_dp_ppll(struct drm_crtc *crtc)
 {
 	struct drm_device *dev = crtc->dev;
+	struct radeon_device *rdev = dev->dev_private;
 	struct drm_crtc *test_crtc;
 	struct radeon_crtc *test_radeon_crtc;
 
@@ -1748,6 +1751,10 @@ static int radeon_get_shared_dp_ppll(str
 		test_radeon_crtc = to_radeon_crtc(test_crtc);
 		if (test_radeon_crtc->encoder &&
 		    ENCODER_MODE_IS_DP(atombios_get_encoder_mode(test_radeon_crtc->encoder))) {
+			/* PPLL2 is exclusive to UNIPHYA on DCE61 */
+			if (ASIC_IS_DCE61(rdev) && !ASIC_IS_DCE8(rdev) &&
+			    test_radeon_crtc->pll_id == ATOM_PPLL2)
+				continue;
 			/* for DP use the same PLL for all */
 			if (test_radeon_crtc->pll_id != ATOM_PPLL_INVALID)
 				return test_radeon_crtc->pll_id;
@@ -1769,6 +1776,7 @@ static int radeon_get_shared_nondp_ppll(
 {
 	struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
 	struct drm_device *dev = crtc->dev;
+	struct radeon_device *rdev = dev->dev_private;
 	struct drm_crtc *test_crtc;
 	struct radeon_crtc *test_radeon_crtc;
 	u32 adjusted_clock, test_adjusted_clock;
@@ -1784,6 +1792,10 @@ static int radeon_get_shared_nondp_ppll(
 		test_radeon_crtc = to_radeon_crtc(test_crtc);
 		if (test_radeon_crtc->encoder &&
 		    !ENCODER_MODE_IS_DP(atombios_get_encoder_mode(test_radeon_crtc->encoder))) {
+			/* PPLL2 is exclusive to UNIPHYA on DCE61 */
+			if (ASIC_IS_DCE61(rdev) && !ASIC_IS_DCE8(rdev) &&
+			    test_radeon_crtc->pll_id == ATOM_PPLL2)
+				continue;
 			/* check if we are already driving this connector with another crtc */
 			if (test_radeon_crtc->connector == radeon_crtc->connector) {
 				/* if we are, return that pll */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/radeon/atombios_dp.c linux-libre-4.4.107-gnu/drivers/gpu/drm/radeon/atombios_dp.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/radeon/atombios_dp.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/radeon/atombios_dp.c	2017-12-20 04:05:01.000000000 -0500
@@ -45,34 +45,32 @@ static char *pre_emph_names[] = {
 
 /***** radeon AUX functions *****/
 
-/* Atom needs data in little endian format
- * so swap as appropriate when copying data to
- * or from atom. Note that atom operates on
- * dw units.
+/* Atom needs data in little endian format so swap as appropriate when copying
+ * data to or from atom. Note that atom operates on dw units.
+ *
+ * Use to_le=true when sending data to atom and provide at least
+ * ALIGN(num_bytes,4) bytes in the dst buffer.
+ *
+ * Use to_le=false when receiving data from atom and provide ALIGN(num_bytes,4)
+ * byes in the src buffer.
  */
 void radeon_atom_copy_swap(u8 *dst, u8 *src, u8 num_bytes, bool to_le)
 {
 #ifdef __BIG_ENDIAN
-	u8 src_tmp[20], dst_tmp[20]; /* used for byteswapping */
-	u32 *dst32, *src32;
+	u32 src_tmp[5], dst_tmp[5];
 	int i;
+	u8 align_num_bytes = ALIGN(num_bytes, 4);
 
-	memcpy(src_tmp, src, num_bytes);
-	src32 = (u32 *)src_tmp;
-	dst32 = (u32 *)dst_tmp;
 	if (to_le) {
-		for (i = 0; i < ((num_bytes + 3) / 4); i++)
-			dst32[i] = cpu_to_le32(src32[i]);
-		memcpy(dst, dst_tmp, num_bytes);
+		memcpy(src_tmp, src, num_bytes);
+		for (i = 0; i < align_num_bytes / 4; i++)
+			dst_tmp[i] = cpu_to_le32(src_tmp[i]);
+		memcpy(dst, dst_tmp, align_num_bytes);
 	} else {
-		u8 dws = num_bytes & ~3;
-		for (i = 0; i < ((num_bytes + 3) / 4); i++)
-			dst32[i] = le32_to_cpu(src32[i]);
-		memcpy(dst, dst_tmp, dws);
-		if (num_bytes % 4) {
-			for (i = 0; i < (num_bytes % 4); i++)
-				dst[dws+i] = dst_tmp[dws+i];
-		}
+		memcpy(src_tmp, src, align_num_bytes);
+		for (i = 0; i < align_num_bytes / 4; i++)
+			dst_tmp[i] = le32_to_cpu(src_tmp[i]);
+		memcpy(dst, dst_tmp, num_bytes);
 	}
 #else
 	memcpy(dst, src, num_bytes);
@@ -302,77 +300,43 @@ static int convert_bpc_to_bpp(int bpc)
 		return bpc * 3;
 }
 
-/* get the max pix clock supported by the link rate and lane num */
-static int dp_get_max_dp_pix_clock(int link_rate,
-				   int lane_num,
-				   int bpp)
-{
-	return (link_rate * lane_num * 8) / bpp;
-}
-
 /***** radeon specific DP functions *****/
 
-int radeon_dp_get_max_link_rate(struct drm_connector *connector,
-				const u8 dpcd[DP_DPCD_SIZE])
-{
-	int max_link_rate;
-
-	if (radeon_connector_is_dp12_capable(connector))
-		max_link_rate = min(drm_dp_max_link_rate(dpcd), 540000);
-	else
-		max_link_rate = min(drm_dp_max_link_rate(dpcd), 270000);
-
-	return max_link_rate;
-}
-
-/* First get the min lane# when low rate is used according to pixel clock
- * (prefer low rate), second check max lane# supported by DP panel,
- * if the max lane# < low rate lane# then use max lane# instead.
- */
-static int radeon_dp_get_dp_lane_number(struct drm_connector *connector,
-					const u8 dpcd[DP_DPCD_SIZE],
-					int pix_clock)
-{
-	int bpp = convert_bpc_to_bpp(radeon_get_monitor_bpc(connector));
-	int max_link_rate = radeon_dp_get_max_link_rate(connector, dpcd);
-	int max_lane_num = drm_dp_max_lane_count(dpcd);
-	int lane_num;
-	int max_dp_pix_clock;
-
-	for (lane_num = 1; lane_num < max_lane_num; lane_num <<= 1) {
-		max_dp_pix_clock = dp_get_max_dp_pix_clock(max_link_rate, lane_num, bpp);
-		if (pix_clock <= max_dp_pix_clock)
-			break;
-	}
-
-	return lane_num;
-}
-
-static int radeon_dp_get_dp_link_clock(struct drm_connector *connector,
-				       const u8 dpcd[DP_DPCD_SIZE],
-				       int pix_clock)
+int radeon_dp_get_dp_link_config(struct drm_connector *connector,
+				 const u8 dpcd[DP_DPCD_SIZE],
+				 unsigned pix_clock,
+				 unsigned *dp_lanes, unsigned *dp_rate)
 {
 	int bpp = convert_bpc_to_bpp(radeon_get_monitor_bpc(connector));
-	int lane_num, max_pix_clock;
+	static const unsigned link_rates[3] = { 162000, 270000, 540000 };
+	unsigned max_link_rate = drm_dp_max_link_rate(dpcd);
+	unsigned max_lane_num = drm_dp_max_lane_count(dpcd);
+	unsigned lane_num, i, max_pix_clock;
 
 	if (radeon_connector_encoder_get_dp_bridge_encoder_id(connector) ==
-	    ENCODER_OBJECT_ID_NUTMEG)
-		return 270000;
-
-	lane_num = radeon_dp_get_dp_lane_number(connector, dpcd, pix_clock);
-	max_pix_clock = dp_get_max_dp_pix_clock(162000, lane_num, bpp);
-	if (pix_clock <= max_pix_clock)
-		return 162000;
-	max_pix_clock = dp_get_max_dp_pix_clock(270000, lane_num, bpp);
-	if (pix_clock <= max_pix_clock)
-		return 270000;
-	if (radeon_connector_is_dp12_capable(connector)) {
-		max_pix_clock = dp_get_max_dp_pix_clock(540000, lane_num, bpp);
-		if (pix_clock <= max_pix_clock)
-			return 540000;
+	    ENCODER_OBJECT_ID_NUTMEG) {
+		for (lane_num = 1; lane_num <= max_lane_num; lane_num <<= 1) {
+			max_pix_clock = (lane_num * 270000 * 8) / bpp;
+			if (max_pix_clock >= pix_clock) {
+				*dp_lanes = lane_num;
+				*dp_rate = 270000;
+				return 0;
+			}
+		}
+	} else {
+		for (i = 0; i < ARRAY_SIZE(link_rates) && link_rates[i] <= max_link_rate; i++) {
+			for (lane_num = 1; lane_num <= max_lane_num; lane_num <<= 1) {
+				max_pix_clock = (lane_num * link_rates[i] * 8) / bpp;
+				if (max_pix_clock >= pix_clock) {
+					*dp_lanes = lane_num;
+					*dp_rate = link_rates[i];
+					return 0;
+				}
+			}
+		}
 	}
 
-	return radeon_dp_get_max_link_rate(connector, dpcd);
+	return -EINVAL;
 }
 
 static u8 radeon_dp_encoder_service(struct radeon_device *rdev,
@@ -491,6 +455,7 @@ void radeon_dp_set_link_config(struct dr
 {
 	struct radeon_connector *radeon_connector = to_radeon_connector(connector);
 	struct radeon_connector_atom_dig *dig_connector;
+	int ret;
 
 	if (!radeon_connector->con_priv)
 		return;
@@ -498,10 +463,14 @@ void radeon_dp_set_link_config(struct dr
 
 	if ((dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT) ||
 	    (dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_eDP)) {
-		dig_connector->dp_clock =
-			radeon_dp_get_dp_link_clock(connector, dig_connector->dpcd, mode->clock);
-		dig_connector->dp_lane_count =
-			radeon_dp_get_dp_lane_number(connector, dig_connector->dpcd, mode->clock);
+		ret = radeon_dp_get_dp_link_config(connector, dig_connector->dpcd,
+						   mode->clock,
+						   &dig_connector->dp_lane_count,
+						   &dig_connector->dp_clock);
+		if (ret) {
+			dig_connector->dp_clock = 0;
+			dig_connector->dp_lane_count = 0;
+		}
 	}
 }
 
@@ -510,7 +479,8 @@ int radeon_dp_mode_valid_helper(struct d
 {
 	struct radeon_connector *radeon_connector = to_radeon_connector(connector);
 	struct radeon_connector_atom_dig *dig_connector;
-	int dp_clock;
+	unsigned dp_clock, dp_lanes;
+	int ret;
 
 	if ((mode->clock > 340000) &&
 	    (!radeon_connector_is_dp12_capable(connector)))
@@ -520,8 +490,12 @@ int radeon_dp_mode_valid_helper(struct d
 		return MODE_CLOCK_HIGH;
 	dig_connector = radeon_connector->con_priv;
 
-	dp_clock =
-		radeon_dp_get_dp_link_clock(connector, dig_connector->dpcd, mode->clock);
+	ret = radeon_dp_get_dp_link_config(connector, dig_connector->dpcd,
+					   mode->clock,
+					   &dp_lanes,
+					   &dp_clock);
+	if (ret)
+		return MODE_CLOCK_HIGH;
 
 	if ((dp_clock == 540000) &&
 	    (!radeon_connector_is_dp12_capable(connector)))
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/radeon/atombios_encoders.c linux-libre-4.4.107-gnu/drivers/gpu/drm/radeon/atombios_encoders.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/radeon/atombios_encoders.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/radeon/atombios_encoders.c	2017-12-20 04:05:01.000000000 -0500
@@ -30,6 +30,7 @@
 #include "radeon_audio.h"
 #include "atom.h"
 #include <linux/backlight.h>
+#include <linux/dmi.h>
 
 extern int atom_debug;
 
@@ -120,6 +121,7 @@ atombios_set_backlight_level(struct rade
 		case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_LVTMA:
 		case ENCODER_OBJECT_ID_INTERNAL_UNIPHY1:
 		case ENCODER_OBJECT_ID_INTERNAL_UNIPHY2:
+		case ENCODER_OBJECT_ID_INTERNAL_UNIPHY3:
 			if (dig->backlight_level == 0)
 				atombios_dig_transmitter_setup(encoder, ATOM_TRANSMITTER_ACTION_LCD_BLOFF, 0, 0);
 			else {
@@ -310,6 +312,10 @@ static bool radeon_atom_mode_fixup(struc
 	    && (mode->crtc_vsync_start < (mode->crtc_vdisplay + 2)))
 		adjusted_mode->crtc_vsync_start = adjusted_mode->crtc_vdisplay + 2;
 
+	/* vertical FP must be at least 1 */
+	if (mode->crtc_vsync_start == mode->crtc_vdisplay)
+		adjusted_mode->crtc_vsync_start++;
+
 	/* get the native mode for scaling */
 	if (radeon_encoder->active_device & (ATOM_DEVICE_LCD_SUPPORT)) {
 		radeon_panel_mode_fixup(encoder, adjusted_mode);
@@ -892,8 +898,6 @@ atombios_dig_encoder_setup2(struct drm_e
 			else
 				args.v1.ucLaneNum = 4;
 
-			if (ENCODER_MODE_IS_DP(args.v1.ucEncoderMode) && (dp_clock == 270000))
-				args.v1.ucConfig |= ATOM_ENCODER_CONFIG_DPLINKRATE_2_70GHZ;
 			switch (radeon_encoder->encoder_id) {
 			case ENCODER_OBJECT_ID_INTERNAL_UNIPHY:
 				args.v1.ucConfig = ATOM_ENCODER_CONFIG_V2_TRANSMITTER1;
@@ -910,6 +914,10 @@ atombios_dig_encoder_setup2(struct drm_e
 				args.v1.ucConfig |= ATOM_ENCODER_CONFIG_LINKB;
 			else
 				args.v1.ucConfig |= ATOM_ENCODER_CONFIG_LINKA;
+
+			if (ENCODER_MODE_IS_DP(args.v1.ucEncoderMode) && (dp_clock == 270000))
+				args.v1.ucConfig |= ATOM_ENCODER_CONFIG_DPLINKRATE_2_70GHZ;
+
 			break;
 		case 2:
 		case 3:
@@ -2176,9 +2184,17 @@ int radeon_atom_pick_dig_encoder(struct
 		goto assigned;
 	}
 
-	/* on DCE32 and encoder can driver any block so just crtc id */
+	/*
+	 * On DCE32 any encoder can drive any block so usually just use crtc id,
+	 * but Apple thinks different at least on iMac10,1, so there use linkb,
+	 * otherwise the internal eDP panel will stay dark.
+	 */
 	if (ASIC_IS_DCE32(rdev)) {
-		enc_idx = radeon_crtc->crtc_id;
+		if (dmi_match(DMI_PRODUCT_NAME, "iMac10,1"))
+			enc_idx = (dig->linkb) ? 1 : 0;
+		else
+			enc_idx = radeon_crtc->crtc_id;
+
 		goto assigned;
 	}
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/radeon/ci_dpm.c linux-libre-4.4.107-gnu/drivers/gpu/drm/radeon/ci_dpm.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/radeon/ci_dpm.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/radeon/ci_dpm.c	2017-12-20 04:05:01.000000000 -0500
@@ -776,6 +776,18 @@ bool ci_dpm_vblank_too_short(struct rade
 	u32 vblank_time = r600_dpm_get_vblank_time(rdev);
 	u32 switch_limit = pi->mem_gddr5 ? 450 : 300;
 
+	/* disable mclk switching if the refresh is >120Hz, even if the
+        * blanking period would allow it
+        */
+	if (r600_dpm_get_vrefresh(rdev) > 120)
+		return true;
+
+	/* disable mclk switching if the refresh is >120Hz, even if the
+        * blanking period would allow it
+        */
+	if (r600_dpm_get_vrefresh(rdev) > 120)
+		return true;
+
 	if (vblank_time < switch_limit)
 		return true;
 	else
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/radeon/cik.c linux-libre-4.4.107-gnu/drivers/gpu/drm/radeon/cik.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/radeon/cik.c	2016-01-10 20:57:46.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/radeon/cik.c	2017-12-20 11:12:28.000000000 -0500
@@ -7683,7 +7683,7 @@ static inline void cik_irq_ack(struct ra
 		WREG32(DC_HPD5_INT_CONTROL, tmp);
 	}
 	if (rdev->irq.stat_regs.cik.disp_int_cont5 & DC_HPD6_INTERRUPT) {
-		tmp = RREG32(DC_HPD5_INT_CONTROL);
+		tmp = RREG32(DC_HPD6_INT_CONTROL);
 		tmp |= DC_HPDx_INT_ACK;
 		WREG32(DC_HPD6_INT_CONTROL, tmp);
 	}
@@ -7713,7 +7713,7 @@ static inline void cik_irq_ack(struct ra
 		WREG32(DC_HPD5_INT_CONTROL, tmp);
 	}
 	if (rdev->irq.stat_regs.cik.disp_int_cont5 & DC_HPD6_RX_INTERRUPT) {
-		tmp = RREG32(DC_HPD5_INT_CONTROL);
+		tmp = RREG32(DC_HPD6_INT_CONTROL);
 		tmp |= DC_HPDx_RX_INT_ACK;
 		WREG32(DC_HPD6_INT_CONTROL, tmp);
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/radeon/dce6_afmt.c linux-libre-4.4.107-gnu/drivers/gpu/drm/radeon/dce6_afmt.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/radeon/dce6_afmt.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/radeon/dce6_afmt.c	2017-12-20 04:05:01.000000000 -0500
@@ -301,6 +301,14 @@ void dce6_dp_audio_set_dto(struct radeon
 	 * is the numerator, DCCG_AUDIO_DTOx_MODULE is the denominator
 	 */
 	if (ASIC_IS_DCE8(rdev)) {
+		unsigned int div = (RREG32(DENTIST_DISPCLK_CNTL) &
+			DENTIST_DPREFCLK_WDIVIDER_MASK) >>
+			DENTIST_DPREFCLK_WDIVIDER_SHIFT;
+		div = radeon_audio_decode_dfs_div(div);
+
+		if (div)
+			clock = clock * 100 / div;
+
 		WREG32(DCE8_DCCG_AUDIO_DTO1_PHASE, 24000);
 		WREG32(DCE8_DCCG_AUDIO_DTO1_MODULE, clock);
 	} else {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/radeon/evergreen.c linux-libre-4.4.107-gnu/drivers/gpu/drm/radeon/evergreen.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/radeon/evergreen.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/radeon/evergreen.c	2017-12-20 04:05:01.000000000 -0500
@@ -2608,10 +2608,152 @@ static void evergreen_agp_enable(struct
 	WREG32(VM_CONTEXT1_CNTL, 0);
 }
 
+static const unsigned ni_dig_offsets[] =
+{
+	NI_DIG0_REGISTER_OFFSET,
+	NI_DIG1_REGISTER_OFFSET,
+	NI_DIG2_REGISTER_OFFSET,
+	NI_DIG3_REGISTER_OFFSET,
+	NI_DIG4_REGISTER_OFFSET,
+	NI_DIG5_REGISTER_OFFSET
+};
+
+static const unsigned ni_tx_offsets[] =
+{
+	NI_DCIO_UNIPHY0_UNIPHY_TX_CONTROL1,
+	NI_DCIO_UNIPHY1_UNIPHY_TX_CONTROL1,
+	NI_DCIO_UNIPHY2_UNIPHY_TX_CONTROL1,
+	NI_DCIO_UNIPHY3_UNIPHY_TX_CONTROL1,
+	NI_DCIO_UNIPHY4_UNIPHY_TX_CONTROL1,
+	NI_DCIO_UNIPHY5_UNIPHY_TX_CONTROL1
+};
+
+static const unsigned evergreen_dp_offsets[] =
+{
+	EVERGREEN_DP0_REGISTER_OFFSET,
+	EVERGREEN_DP1_REGISTER_OFFSET,
+	EVERGREEN_DP2_REGISTER_OFFSET,
+	EVERGREEN_DP3_REGISTER_OFFSET,
+	EVERGREEN_DP4_REGISTER_OFFSET,
+	EVERGREEN_DP5_REGISTER_OFFSET
+};
+
+
+/*
+ * Assumption is that EVERGREEN_CRTC_MASTER_EN enable for requested crtc
+ * We go from crtc to connector and it is not relible  since it
+ * should be an opposite direction .If crtc is enable then
+ * find the dig_fe which selects this crtc and insure that it enable.
+ * if such dig_fe is found then find dig_be which selects found dig_be and
+ * insure that it enable and in DP_SST mode.
+ * if UNIPHY_PLL_CONTROL1.enable then we should disconnect timing
+ * from dp symbols clocks .
+ */
+static bool evergreen_is_dp_sst_stream_enabled(struct radeon_device *rdev,
+					       unsigned crtc_id, unsigned *ret_dig_fe)
+{
+	unsigned i;
+	unsigned dig_fe;
+	unsigned dig_be;
+	unsigned dig_en_be;
+	unsigned uniphy_pll;
+	unsigned digs_fe_selected;
+	unsigned dig_be_mode;
+	unsigned dig_fe_mask;
+	bool is_enabled = false;
+	bool found_crtc = false;
+
+	/* loop through all running dig_fe to find selected crtc */
+	for (i = 0; i < ARRAY_SIZE(ni_dig_offsets); i++) {
+		dig_fe = RREG32(NI_DIG_FE_CNTL + ni_dig_offsets[i]);
+		if (dig_fe & NI_DIG_FE_CNTL_SYMCLK_FE_ON &&
+		    crtc_id == NI_DIG_FE_CNTL_SOURCE_SELECT(dig_fe)) {
+			/* found running pipe */
+			found_crtc = true;
+			dig_fe_mask = 1 << i;
+			dig_fe = i;
+			break;
+		}
+	}
+
+	if (found_crtc) {
+		/* loop through all running dig_be to find selected dig_fe */
+		for (i = 0; i < ARRAY_SIZE(ni_dig_offsets); i++) {
+			dig_be = RREG32(NI_DIG_BE_CNTL + ni_dig_offsets[i]);
+			/* if dig_fe_selected by dig_be? */
+			digs_fe_selected = NI_DIG_BE_CNTL_FE_SOURCE_SELECT(dig_be);
+			dig_be_mode = NI_DIG_FE_CNTL_MODE(dig_be);
+			if (dig_fe_mask &  digs_fe_selected &&
+			    /* if dig_be in sst mode? */
+			    dig_be_mode == NI_DIG_BE_DPSST) {
+				dig_en_be = RREG32(NI_DIG_BE_EN_CNTL +
+						   ni_dig_offsets[i]);
+				uniphy_pll = RREG32(NI_DCIO_UNIPHY0_PLL_CONTROL1 +
+						    ni_tx_offsets[i]);
+				/* dig_be enable and tx is running */
+				if (dig_en_be & NI_DIG_BE_EN_CNTL_ENABLE &&
+				    dig_en_be & NI_DIG_BE_EN_CNTL_SYMBCLK_ON &&
+				    uniphy_pll & NI_DCIO_UNIPHY0_PLL_CONTROL1_ENABLE) {
+					is_enabled = true;
+					*ret_dig_fe = dig_fe;
+					break;
+				}
+			}
+		}
+	}
+
+	return is_enabled;
+}
+
+/*
+ * Blank dig when in dp sst mode
+ * Dig ignores crtc timing
+ */
+static void evergreen_blank_dp_output(struct radeon_device *rdev,
+				      unsigned dig_fe)
+{
+	unsigned stream_ctrl;
+	unsigned fifo_ctrl;
+	unsigned counter = 0;
+
+	if (dig_fe >= ARRAY_SIZE(evergreen_dp_offsets)) {
+		DRM_ERROR("invalid dig_fe %d\n", dig_fe);
+		return;
+	}
+
+	stream_ctrl = RREG32(EVERGREEN_DP_VID_STREAM_CNTL +
+			     evergreen_dp_offsets[dig_fe]);
+	if (!(stream_ctrl & EVERGREEN_DP_VID_STREAM_CNTL_ENABLE)) {
+		DRM_ERROR("dig %d , should be enable\n", dig_fe);
+		return;
+	}
+
+	stream_ctrl &=~EVERGREEN_DP_VID_STREAM_CNTL_ENABLE;
+	WREG32(EVERGREEN_DP_VID_STREAM_CNTL +
+	       evergreen_dp_offsets[dig_fe], stream_ctrl);
+
+	stream_ctrl = RREG32(EVERGREEN_DP_VID_STREAM_CNTL +
+			     evergreen_dp_offsets[dig_fe]);
+	while (counter < 32 && stream_ctrl & EVERGREEN_DP_VID_STREAM_STATUS) {
+		msleep(1);
+		counter++;
+		stream_ctrl = RREG32(EVERGREEN_DP_VID_STREAM_CNTL +
+				     evergreen_dp_offsets[dig_fe]);
+	}
+	if (counter >= 32 )
+		DRM_ERROR("counter exceeds %d\n", counter);
+
+	fifo_ctrl = RREG32(EVERGREEN_DP_STEER_FIFO + evergreen_dp_offsets[dig_fe]);
+	fifo_ctrl |= EVERGREEN_DP_STEER_FIFO_RESET;
+	WREG32(EVERGREEN_DP_STEER_FIFO + evergreen_dp_offsets[dig_fe], fifo_ctrl);
+
+}
+
 void evergreen_mc_stop(struct radeon_device *rdev, struct evergreen_mc_save *save)
 {
 	u32 crtc_enabled, tmp, frame_count, blackout;
 	int i, j;
+	unsigned dig_fe;
 
 	if (!ASIC_IS_NODCE(rdev)) {
 		save->vga_render_control = RREG32(VGA_RENDER_CONTROL);
@@ -2651,7 +2793,17 @@ void evergreen_mc_stop(struct radeon_dev
 					break;
 				udelay(1);
 			}
-
+			/*we should disable dig if it drives dp sst*/
+			/*but we are in radeon_device_init and the topology is unknown*/
+			/*and it is available after radeon_modeset_init*/
+			/*the following method radeon_atom_encoder_dpms_dig*/
+			/*does the job if we initialize it properly*/
+			/*for now we do it this manually*/
+			/**/
+			if (ASIC_IS_DCE5(rdev) &&
+			    evergreen_is_dp_sst_stream_enabled(rdev, i ,&dig_fe))
+				evergreen_blank_dp_output(rdev, dig_fe);
+			/*we could remove 6 lines below*/
 			/* XXX this is a hack to avoid strange behavior with EFI on certain systems */
 			WREG32(EVERGREEN_CRTC_UPDATE_LOCK + crtc_offsets[i], 1);
 			tmp = RREG32(EVERGREEN_CRTC_CONTROL + crtc_offsets[i]);
@@ -4772,7 +4924,7 @@ static void evergreen_irq_ack(struct rad
 		WREG32(DC_HPD5_INT_CONTROL, tmp);
 	}
 	if (rdev->irq.stat_regs.evergreen.disp_int_cont5 & DC_HPD6_INTERRUPT) {
-		tmp = RREG32(DC_HPD5_INT_CONTROL);
+		tmp = RREG32(DC_HPD6_INT_CONTROL);
 		tmp |= DC_HPDx_INT_ACK;
 		WREG32(DC_HPD6_INT_CONTROL, tmp);
 	}
@@ -4803,7 +4955,7 @@ static void evergreen_irq_ack(struct rad
 		WREG32(DC_HPD5_INT_CONTROL, tmp);
 	}
 	if (rdev->irq.stat_regs.evergreen.disp_int_cont5 & DC_HPD6_RX_INTERRUPT) {
-		tmp = RREG32(DC_HPD5_INT_CONTROL);
+		tmp = RREG32(DC_HPD6_INT_CONTROL);
 		tmp |= DC_HPDx_RX_INT_ACK;
 		WREG32(DC_HPD6_INT_CONTROL, tmp);
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/radeon/evergreend.h linux-libre-4.4.107-gnu/drivers/gpu/drm/radeon/evergreend.h
--- linux-libre-4.4-gnu/drivers/gpu/drm/radeon/evergreend.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/radeon/evergreend.h	2017-12-20 04:05:01.000000000 -0500
@@ -511,6 +511,11 @@
 #define DCCG_AUDIO_DTO1_CNTL              0x05cc
 #       define DCCG_AUDIO_DTO1_USE_512FBR_DTO (1 << 3)
 
+#define DCE41_DENTIST_DISPCLK_CNTL			0x049c
+#       define DENTIST_DPREFCLK_WDIVIDER(x)		(((x) & 0x7f) << 24)
+#       define DENTIST_DPREFCLK_WDIVIDER_MASK		(0x7f << 24)
+#       define DENTIST_DPREFCLK_WDIVIDER_SHIFT		24
+
 /* DCE 4.0 AFMT */
 #define HDMI_CONTROL                         0x7030
 #       define HDMI_KEEPOUT_MODE             (1 << 0)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/radeon/evergreen_hdmi.c linux-libre-4.4.107-gnu/drivers/gpu/drm/radeon/evergreen_hdmi.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/radeon/evergreen_hdmi.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/radeon/evergreen_hdmi.c	2017-12-20 04:05:01.000000000 -0500
@@ -289,6 +289,16 @@ void dce4_dp_audio_set_dto(struct radeon
 	 * number (coefficient of two integer numbers.  DCCG_AUDIO_DTOx_PHASE
 	 * is the numerator, DCCG_AUDIO_DTOx_MODULE is the denominator
 	 */
+	if (ASIC_IS_DCE41(rdev)) {
+		unsigned int div = (RREG32(DCE41_DENTIST_DISPCLK_CNTL) &
+			DENTIST_DPREFCLK_WDIVIDER_MASK) >>
+			DENTIST_DPREFCLK_WDIVIDER_SHIFT;
+		div = radeon_audio_decode_dfs_div(div);
+
+		if (div)
+			clock = 100 * clock / div;
+	}
+
 	WREG32(DCCG_AUDIO_DTO1_PHASE, 24000);
 	WREG32(DCCG_AUDIO_DTO1_MODULE, clock);
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/radeon/evergreen_reg.h linux-libre-4.4.107-gnu/drivers/gpu/drm/radeon/evergreen_reg.h
--- linux-libre-4.4-gnu/drivers/gpu/drm/radeon/evergreen_reg.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/radeon/evergreen_reg.h	2017-12-20 04:05:01.000000000 -0500
@@ -250,8 +250,43 @@
 
 /* HDMI blocks at 0x7030, 0x7c30, 0x10830, 0x11430, 0x12030, 0x12c30 */
 #define EVERGREEN_HDMI_BASE				0x7030
+/*DIG block*/
+#define NI_DIG0_REGISTER_OFFSET                 (0x7000  - 0x7000)
+#define NI_DIG1_REGISTER_OFFSET                 (0x7C00  - 0x7000)
+#define NI_DIG2_REGISTER_OFFSET                 (0x10800 - 0x7000)
+#define NI_DIG3_REGISTER_OFFSET                 (0x11400 - 0x7000)
+#define NI_DIG4_REGISTER_OFFSET                 (0x12000 - 0x7000)
+#define NI_DIG5_REGISTER_OFFSET                 (0x12C00 - 0x7000)
+
+
+#define NI_DIG_FE_CNTL                               0x7000
+#       define NI_DIG_FE_CNTL_SOURCE_SELECT(x)        ((x) & 0x3)
+#       define NI_DIG_FE_CNTL_SYMCLK_FE_ON            (1<<24)
+
+
+#define NI_DIG_BE_CNTL                    0x7140
+#       define NI_DIG_BE_CNTL_FE_SOURCE_SELECT(x)     (((x) >> 8 ) & 0x3F)
+#       define NI_DIG_FE_CNTL_MODE(x)                 (((x) >> 16) & 0x7 )
+
+#define NI_DIG_BE_EN_CNTL                              0x7144
+#       define NI_DIG_BE_EN_CNTL_ENABLE               (1 << 0)
+#       define NI_DIG_BE_EN_CNTL_SYMBCLK_ON           (1 << 8)
+#       define NI_DIG_BE_DPSST 0
 
 /* Display Port block */
+#define EVERGREEN_DP0_REGISTER_OFFSET                 (0x730C  - 0x730C)
+#define EVERGREEN_DP1_REGISTER_OFFSET                 (0x7F0C  - 0x730C)
+#define EVERGREEN_DP2_REGISTER_OFFSET                 (0x10B0C - 0x730C)
+#define EVERGREEN_DP3_REGISTER_OFFSET                 (0x1170C - 0x730C)
+#define EVERGREEN_DP4_REGISTER_OFFSET                 (0x1230C - 0x730C)
+#define EVERGREEN_DP5_REGISTER_OFFSET                 (0x12F0C - 0x730C)
+
+
+#define EVERGREEN_DP_VID_STREAM_CNTL                    0x730C
+#       define EVERGREEN_DP_VID_STREAM_CNTL_ENABLE     (1 << 0)
+#       define EVERGREEN_DP_VID_STREAM_STATUS          (1 <<16)
+#define EVERGREEN_DP_STEER_FIFO                         0x7310
+#       define EVERGREEN_DP_STEER_FIFO_RESET           (1 << 0)
 #define EVERGREEN_DP_SEC_CNTL                           0x7280
 #       define EVERGREEN_DP_SEC_STREAM_ENABLE           (1 << 0)
 #       define EVERGREEN_DP_SEC_ASP_ENABLE              (1 << 4)
@@ -266,4 +301,15 @@
 #       define EVERGREEN_DP_SEC_N_BASE_MULTIPLE(x)      (((x) & 0xf) << 24)
 #       define EVERGREEN_DP_SEC_SS_EN                   (1 << 28)
 
+/*DCIO_UNIPHY block*/
+#define NI_DCIO_UNIPHY0_UNIPHY_TX_CONTROL1            (0x6600  -0x6600)
+#define NI_DCIO_UNIPHY1_UNIPHY_TX_CONTROL1            (0x6640  -0x6600)
+#define NI_DCIO_UNIPHY2_UNIPHY_TX_CONTROL1            (0x6680 - 0x6600)
+#define NI_DCIO_UNIPHY3_UNIPHY_TX_CONTROL1            (0x66C0 - 0x6600)
+#define NI_DCIO_UNIPHY4_UNIPHY_TX_CONTROL1            (0x6700 - 0x6600)
+#define NI_DCIO_UNIPHY5_UNIPHY_TX_CONTROL1            (0x6740 - 0x6600)
+
+#define NI_DCIO_UNIPHY0_PLL_CONTROL1                   0x6618
+#       define NI_DCIO_UNIPHY0_PLL_CONTROL1_ENABLE     (1 << 0)
+
 #endif
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/radeon/ni.c linux-libre-4.4.107-gnu/drivers/gpu/drm/radeon/ni.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/radeon/ni.c	2016-01-10 20:57:33.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/radeon/ni.c	2017-12-20 11:12:04.000000000 -0500
@@ -1376,9 +1376,7 @@ static void cayman_pcie_gart_fini(struct
 void cayman_cp_int_cntl_setup(struct radeon_device *rdev,
 			      int ring, u32 cp_int_cntl)
 {
-	u32 srbm_gfx_cntl = RREG32(SRBM_GFX_CNTL) & ~3;
-
-	WREG32(SRBM_GFX_CNTL, srbm_gfx_cntl | (ring & 3));
+	WREG32(SRBM_GFX_CNTL, RINGID(ring));
 	WREG32(CP_INT_CNTL, cp_int_cntl);
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/radeon/r600.c linux-libre-4.4.107-gnu/drivers/gpu/drm/radeon/r600.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/radeon/r600.c	2016-01-10 20:57:21.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/radeon/r600.c	2017-12-20 11:11:51.000000000 -0500
@@ -3897,7 +3897,7 @@ static void r600_irq_ack(struct radeon_d
 			WREG32(DC_HPD5_INT_CONTROL, tmp);
 		}
 		if (rdev->irq.stat_regs.r600.disp_int_cont2 & DC_HPD6_INTERRUPT) {
-			tmp = RREG32(DC_HPD5_INT_CONTROL);
+			tmp = RREG32(DC_HPD6_INT_CONTROL);
 			tmp |= DC_HPDx_INT_ACK;
 			WREG32(DC_HPD6_INT_CONTROL, tmp);
 		}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/radeon/r600_dpm.c linux-libre-4.4.107-gnu/drivers/gpu/drm/radeon/r600_dpm.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/radeon/r600_dpm.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/radeon/r600_dpm.c	2017-12-20 04:05:01.000000000 -0500
@@ -156,19 +156,20 @@ u32 r600_dpm_get_vblank_time(struct rade
 	struct drm_device *dev = rdev->ddev;
 	struct drm_crtc *crtc;
 	struct radeon_crtc *radeon_crtc;
-	u32 line_time_us, vblank_lines;
+	u32 vblank_in_pixels;
 	u32 vblank_time_us = 0xffffffff; /* if the displays are off, vblank time is max */
 
 	if (rdev->num_crtc && rdev->mode_info.mode_config_initialized) {
 		list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 			radeon_crtc = to_radeon_crtc(crtc);
 			if (crtc->enabled && radeon_crtc->enabled && radeon_crtc->hw_mode.clock) {
-				line_time_us = (radeon_crtc->hw_mode.crtc_htotal * 1000) /
-					radeon_crtc->hw_mode.clock;
-				vblank_lines = radeon_crtc->hw_mode.crtc_vblank_end -
-					radeon_crtc->hw_mode.crtc_vdisplay +
-					(radeon_crtc->v_border * 2);
-				vblank_time_us = vblank_lines * line_time_us;
+				vblank_in_pixels =
+					radeon_crtc->hw_mode.crtc_htotal *
+					(radeon_crtc->hw_mode.crtc_vblank_end -
+					 radeon_crtc->hw_mode.crtc_vdisplay +
+					 (radeon_crtc->v_border * 2));
+
+				vblank_time_us = vblank_in_pixels * 1000 / radeon_crtc->hw_mode.clock;
 				break;
 			}
 		}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/radeon/radeon_atombios.c linux-libre-4.4.107-gnu/drivers/gpu/drm/radeon/radeon_atombios.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/radeon/radeon_atombios.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/radeon/radeon_atombios.c	2017-12-20 04:05:01.000000000 -0500
@@ -437,7 +437,9 @@ static bool radeon_atom_apply_quirks(str
 	}
 
 	/* Fujitsu D3003-S2 board lists DVI-I as DVI-D and VGA */
-	if (((dev->pdev->device == 0x9802) || (dev->pdev->device == 0x9806)) &&
+	if (((dev->pdev->device == 0x9802) ||
+	     (dev->pdev->device == 0x9805) ||
+	     (dev->pdev->device == 0x9806)) &&
 	    (dev->pdev->subsystem_vendor == 0x1734) &&
 	    (dev->pdev->subsystem_device == 0x11bd)) {
 		if (*connector_type == DRM_MODE_CONNECTOR_VGA) {
@@ -448,14 +450,6 @@ static bool radeon_atom_apply_quirks(str
 		}
 	}
 
-	/* Fujitsu D3003-S2 board lists DVI-I as DVI-I and VGA */
-	if ((dev->pdev->device == 0x9805) &&
-	    (dev->pdev->subsystem_vendor == 0x1734) &&
-	    (dev->pdev->subsystem_device == 0x11bd)) {
-		if (*connector_type == DRM_MODE_CONNECTOR_VGA)
-			return false;
-	}
-
 	return true;
 }
 
@@ -1112,6 +1106,31 @@ union firmware_info {
 	ATOM_FIRMWARE_INFO_V2_2 info_22;
 };
 
+union igp_info {
+	struct _ATOM_INTEGRATED_SYSTEM_INFO info;
+	struct _ATOM_INTEGRATED_SYSTEM_INFO_V2 info_2;
+	struct _ATOM_INTEGRATED_SYSTEM_INFO_V6 info_6;
+	struct _ATOM_INTEGRATED_SYSTEM_INFO_V1_7 info_7;
+	struct _ATOM_INTEGRATED_SYSTEM_INFO_V1_8 info_8;
+};
+
+static void radeon_atombios_get_dentist_vco_freq(struct radeon_device *rdev)
+{
+	struct radeon_mode_info *mode_info = &rdev->mode_info;
+	int index = GetIndexIntoMasterTable(DATA, IntegratedSystemInfo);
+	union igp_info *igp_info;
+	u8 frev, crev;
+	u16 data_offset;
+
+	if (atom_parse_data_header(mode_info->atom_context, index, NULL,
+			&frev, &crev, &data_offset)) {
+		igp_info = (union igp_info *)(mode_info->atom_context->bios +
+			data_offset);
+		rdev->clock.vco_freq =
+			le32_to_cpu(igp_info->info_6.ulDentistVCOFreq);
+	}
+}
+
 bool radeon_atom_get_clock_info(struct drm_device *dev)
 {
 	struct radeon_device *rdev = dev->dev_private;
@@ -1136,7 +1155,7 @@ bool radeon_atom_get_clock_info(struct d
 		    le16_to_cpu(firmware_info->info.usReferenceClock);
 		p1pll->reference_div = 0;
 
-		if (crev < 2)
+		if ((frev < 2) && (crev < 2))
 			p1pll->pll_out_min =
 				le16_to_cpu(firmware_info->info.usMinPixelClockPLL_Output);
 		else
@@ -1145,7 +1164,7 @@ bool radeon_atom_get_clock_info(struct d
 		p1pll->pll_out_max =
 		    le32_to_cpu(firmware_info->info.ulMaxPixelClockPLL_Output);
 
-		if (crev >= 4) {
+		if (((frev < 2) && (crev >= 4)) || (frev >= 2)) {
 			p1pll->lcd_pll_out_min =
 				le16_to_cpu(firmware_info->info_14.usLcdMinPixelClockPLL_Output) * 100;
 			if (p1pll->lcd_pll_out_min == 0)
@@ -1263,20 +1282,25 @@ bool radeon_atom_get_clock_info(struct d
 		rdev->mode_info.firmware_flags =
 			le16_to_cpu(firmware_info->info.usFirmwareCapability.susAccess);
 
+		if (ASIC_IS_DCE8(rdev))
+			rdev->clock.vco_freq =
+				le32_to_cpu(firmware_info->info_22.ulGPUPLL_OutputFreq);
+		else if (ASIC_IS_DCE5(rdev))
+			rdev->clock.vco_freq = rdev->clock.current_dispclk;
+		else if (ASIC_IS_DCE41(rdev))
+			radeon_atombios_get_dentist_vco_freq(rdev);
+		else
+			rdev->clock.vco_freq = rdev->clock.current_dispclk;
+
+		if (rdev->clock.vco_freq == 0)
+			rdev->clock.vco_freq = 360000;	/* 3.6 GHz */
+
 		return true;
 	}
 
 	return false;
 }
 
-union igp_info {
-	struct _ATOM_INTEGRATED_SYSTEM_INFO info;
-	struct _ATOM_INTEGRATED_SYSTEM_INFO_V2 info_2;
-	struct _ATOM_INTEGRATED_SYSTEM_INFO_V6 info_6;
-	struct _ATOM_INTEGRATED_SYSTEM_INFO_V1_7 info_7;
-	struct _ATOM_INTEGRATED_SYSTEM_INFO_V1_8 info_8;
-};
-
 bool radeon_atombios_sideport_present(struct radeon_device *rdev)
 {
 	struct radeon_mode_info *mode_info = &rdev->mode_info;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/radeon/radeon_atpx_handler.c linux-libre-4.4.107-gnu/drivers/gpu/drm/radeon/radeon_atpx_handler.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/radeon/radeon_atpx_handler.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/radeon/radeon_atpx_handler.c	2017-12-20 04:05:01.000000000 -0500
@@ -10,6 +10,7 @@
 #include <linux/slab.h>
 #include <linux/acpi.h>
 #include <linux/pci.h>
+#include <linux/delay.h>
 
 #include "radeon_acpi.h"
 
@@ -255,6 +256,10 @@ static int radeon_atpx_set_discrete_stat
 		if (!info)
 			return -EIO;
 		kfree(info);
+
+		/* 200ms delay is required after off */
+		if (state == 0)
+			msleep(200);
 	}
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/radeon/radeon_audio.c linux-libre-4.4.107-gnu/drivers/gpu/drm/radeon/radeon_audio.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/radeon/radeon_audio.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/radeon/radeon_audio.c	2017-12-20 04:05:01.000000000 -0500
@@ -739,9 +739,6 @@ static void radeon_audio_dp_mode_set(str
 	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 	struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
 	struct drm_connector *connector = radeon_get_connector_for_encoder(encoder);
-	struct radeon_connector *radeon_connector = to_radeon_connector(connector);
-	struct radeon_connector_atom_dig *dig_connector =
-		radeon_connector->con_priv;
 
 	if (!dig || !dig->afmt)
 		return;
@@ -753,10 +750,7 @@ static void radeon_audio_dp_mode_set(str
 		radeon_audio_write_speaker_allocation(encoder);
 		radeon_audio_write_sad_regs(encoder);
 		radeon_audio_write_latency_fields(encoder, mode);
-		if (rdev->clock.dp_extclk || ASIC_IS_DCE5(rdev))
-			radeon_audio_set_dto(encoder, rdev->clock.default_dispclk * 10);
-		else
-			radeon_audio_set_dto(encoder, dig_connector->dp_clock);
+		radeon_audio_set_dto(encoder, rdev->clock.vco_freq * 10);
 		radeon_audio_set_audio_packet(encoder);
 		radeon_audio_select_pin(encoder);
 
@@ -781,3 +775,15 @@ void radeon_audio_dpms(struct drm_encode
 	if (radeon_encoder->audio && radeon_encoder->audio->dpms)
 		radeon_encoder->audio->dpms(encoder, mode == DRM_MODE_DPMS_ON);
 }
+
+unsigned int radeon_audio_decode_dfs_div(unsigned int div)
+{
+	if (div >= 8 && div < 64)
+		return (div - 8) * 25 + 200;
+	else if (div >= 64 && div < 96)
+		return (div - 64) * 50 + 1600;
+	else if (div >= 96 && div < 128)
+		return (div - 96) * 100 + 3200;
+	else
+		return 0;
+}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/radeon/radeon_audio.h linux-libre-4.4.107-gnu/drivers/gpu/drm/radeon/radeon_audio.h
--- linux-libre-4.4-gnu/drivers/gpu/drm/radeon/radeon_audio.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/radeon/radeon_audio.h	2017-12-20 04:05:01.000000000 -0500
@@ -79,5 +79,6 @@ void radeon_audio_fini(struct radeon_dev
 void radeon_audio_mode_set(struct drm_encoder *encoder,
 	struct drm_display_mode *mode);
 void radeon_audio_dpms(struct drm_encoder *encoder, int mode);
+unsigned int radeon_audio_decode_dfs_div(unsigned int div);
 
 #endif
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/radeon/radeon_combios.c linux-libre-4.4.107-gnu/drivers/gpu/drm/radeon/radeon_combios.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/radeon/radeon_combios.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/radeon/radeon_combios.c	2017-12-20 04:05:01.000000000 -0500
@@ -3394,6 +3394,13 @@ void radeon_combios_asic_init(struct drm
 	    rdev->pdev->subsystem_vendor == 0x103c &&
 	    rdev->pdev->subsystem_device == 0x280a)
 		return;
+	/* quirk for rs4xx Toshiba Sattellite L20-183 latop to make it resume
+	 * - it hangs on resume inside the dynclk 1 table.
+	 */
+	if (rdev->family == CHIP_RS400 &&
+	    rdev->pdev->subsystem_vendor == 0x1179 &&
+	    rdev->pdev->subsystem_device == 0xff31)
+	        return;
 
 	/* DYN CLK 1 */
 	table = combios_get_table_offset(dev, COMBIOS_DYN_CLK_1_TABLE);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/radeon/radeon_connectors.c linux-libre-4.4.107-gnu/drivers/gpu/drm/radeon/radeon_connectors.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/radeon/radeon_connectors.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/radeon/radeon_connectors.c	2017-12-20 04:05:01.000000000 -0500
@@ -1996,10 +1996,12 @@ radeon_add_atom_connector(struct drm_dev
 						   rdev->mode_info.dither_property,
 						   RADEON_FMT_DITHER_DISABLE);
 
-			if (radeon_audio != 0)
+			if (radeon_audio != 0) {
 				drm_object_attach_property(&radeon_connector->base.base,
 							   rdev->mode_info.audio_property,
 							   RADEON_AUDIO_AUTO);
+				radeon_connector->audio = RADEON_AUDIO_AUTO;
+			}
 			if (ASIC_IS_DCE5(rdev))
 				drm_object_attach_property(&radeon_connector->base.base,
 							   rdev->mode_info.output_csc_property,
@@ -2056,7 +2058,6 @@ radeon_add_atom_connector(struct drm_dev
 							   RADEON_OUTPUT_CSC_BYPASS);
 			/* no HPD on analog connectors */
 			radeon_connector->hpd.hpd = RADEON_HPD_NONE;
-			connector->polled = DRM_CONNECTOR_POLL_CONNECT;
 			connector->interlace_allowed = true;
 			connector->doublescan_allowed = true;
 			break;
@@ -2124,6 +2125,7 @@ radeon_add_atom_connector(struct drm_dev
 				drm_object_attach_property(&radeon_connector->base.base,
 							   rdev->mode_info.audio_property,
 							   RADEON_AUDIO_AUTO);
+				radeon_connector->audio = RADEON_AUDIO_AUTO;
 			}
 			if (connector_type == DRM_MODE_CONNECTOR_DVII) {
 				radeon_connector->dac_load_detect = true;
@@ -2179,6 +2181,7 @@ radeon_add_atom_connector(struct drm_dev
 				drm_object_attach_property(&radeon_connector->base.base,
 							   rdev->mode_info.audio_property,
 							   RADEON_AUDIO_AUTO);
+				radeon_connector->audio = RADEON_AUDIO_AUTO;
 			}
 			if (ASIC_IS_DCE5(rdev))
 				drm_object_attach_property(&radeon_connector->base.base,
@@ -2231,6 +2234,7 @@ radeon_add_atom_connector(struct drm_dev
 				drm_object_attach_property(&radeon_connector->base.base,
 							   rdev->mode_info.audio_property,
 							   RADEON_AUDIO_AUTO);
+				radeon_connector->audio = RADEON_AUDIO_AUTO;
 			}
 			if (ASIC_IS_DCE5(rdev))
 				drm_object_attach_property(&radeon_connector->base.base,
@@ -2303,8 +2307,10 @@ radeon_add_atom_connector(struct drm_dev
 	}
 
 	if (radeon_connector->hpd.hpd == RADEON_HPD_NONE) {
-		if (i2c_bus->valid)
-			connector->polled = DRM_CONNECTOR_POLL_CONNECT;
+		if (i2c_bus->valid) {
+			connector->polled = DRM_CONNECTOR_POLL_CONNECT |
+			                    DRM_CONNECTOR_POLL_DISCONNECT;
+		}
 	} else
 		connector->polled = DRM_CONNECTOR_POLL_HPD;
 
@@ -2380,7 +2386,6 @@ radeon_add_legacy_connector(struct drm_d
 					      1);
 		/* no HPD on analog connectors */
 		radeon_connector->hpd.hpd = RADEON_HPD_NONE;
-		connector->polled = DRM_CONNECTOR_POLL_CONNECT;
 		connector->interlace_allowed = true;
 		connector->doublescan_allowed = true;
 		break;
@@ -2465,10 +2470,13 @@ radeon_add_legacy_connector(struct drm_d
 	}
 
 	if (radeon_connector->hpd.hpd == RADEON_HPD_NONE) {
-		if (i2c_bus->valid)
-			connector->polled = DRM_CONNECTOR_POLL_CONNECT;
+		if (i2c_bus->valid) {
+			connector->polled = DRM_CONNECTOR_POLL_CONNECT |
+			                    DRM_CONNECTOR_POLL_DISCONNECT;
+		}
 	} else
 		connector->polled = DRM_CONNECTOR_POLL_HPD;
+
 	connector->display_info.subpixel_order = subpixel_order;
 	drm_connector_register(connector);
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/radeon/radeon_cursor.c linux-libre-4.4.107-gnu/drivers/gpu/drm/radeon/radeon_cursor.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/radeon/radeon_cursor.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/radeon/radeon_cursor.c	2017-12-20 04:05:01.000000000 -0500
@@ -90,6 +90,9 @@ static void radeon_show_cursor(struct dr
 	struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
 	struct radeon_device *rdev = crtc->dev->dev_private;
 
+	if (radeon_crtc->cursor_out_of_bounds)
+		return;
+
 	if (ASIC_IS_DCE4(rdev)) {
 		WREG32(EVERGREEN_CUR_SURFACE_ADDRESS_HIGH + radeon_crtc->crtc_offset,
 		       upper_32_bits(radeon_crtc->cursor_addr));
@@ -143,21 +146,25 @@ static int radeon_cursor_move_locked(str
 	int xorigin = 0, yorigin = 0;
 	int w = radeon_crtc->cursor_width;
 
+	radeon_crtc->cursor_x = x;
+	radeon_crtc->cursor_y = y;
+
 	if (ASIC_IS_AVIVO(rdev)) {
 		/* avivo cursor are offset into the total surface */
 		x += crtc->x;
 		y += crtc->y;
 	}
-	DRM_DEBUG("x %d y %d c->x %d c->y %d\n", x, y, crtc->x, crtc->y);
 
-	if (x < 0) {
+	if (x < 0)
 		xorigin = min(-x, radeon_crtc->max_cursor_width - 1);
-		x = 0;
-	}
-	if (y < 0) {
+	if (y < 0)
 		yorigin = min(-y, radeon_crtc->max_cursor_height - 1);
-		y = 0;
+
+	if (!ASIC_IS_AVIVO(rdev)) {
+		x += crtc->x;
+		y += crtc->y;
 	}
+	DRM_DEBUG("x %d y %d c->x %d c->y %d\n", x, y, crtc->x, crtc->y);
 
 	/* fixed on DCE6 and newer */
 	if (ASIC_IS_AVIVO(rdev) && !ASIC_IS_DCE6(rdev)) {
@@ -180,27 +187,31 @@ static int radeon_cursor_move_locked(str
 		if (i > 1) {
 			int cursor_end, frame_end;
 
-			cursor_end = x - xorigin + w;
+			cursor_end = x + w;
 			frame_end = crtc->x + crtc->mode.crtc_hdisplay;
 			if (cursor_end >= frame_end) {
 				w = w - (cursor_end - frame_end);
 				if (!(frame_end & 0x7f))
 					w--;
-			} else {
-				if (!(cursor_end & 0x7f))
-					w--;
+			} else if (cursor_end <= 0) {
+				goto out_of_bounds;
+			} else if (!(cursor_end & 0x7f)) {
+				w--;
 			}
 			if (w <= 0) {
-				w = 1;
-				cursor_end = x - xorigin + w;
-				if (!(cursor_end & 0x7f)) {
-					x--;
-					WARN_ON_ONCE(x < 0);
-				}
+				goto out_of_bounds;
 			}
 		}
 	}
 
+	if (x <= (crtc->x - w) || y <= (crtc->y - radeon_crtc->cursor_height) ||
+	    x >= (crtc->x + crtc->mode.hdisplay) ||
+	    y >= (crtc->y + crtc->mode.vdisplay))
+		goto out_of_bounds;
+
+	x += xorigin;
+	y += yorigin;
+
 	if (ASIC_IS_DCE4(rdev)) {
 		WREG32(EVERGREEN_CUR_POSITION + radeon_crtc->crtc_offset, (x << 16) | y);
 		WREG32(EVERGREEN_CUR_HOT_SPOT + radeon_crtc->crtc_offset, (xorigin << 16) | yorigin);
@@ -212,6 +223,9 @@ static int radeon_cursor_move_locked(str
 		WREG32(AVIVO_D1CUR_SIZE + radeon_crtc->crtc_offset,
 		       ((w - 1) << 16) | (radeon_crtc->cursor_height - 1));
 	} else {
+		x -= crtc->x;
+		y -= crtc->y;
+
 		if (crtc->mode.flags & DRM_MODE_FLAG_DBLSCAN)
 			y *= 2;
 
@@ -229,9 +243,19 @@ static int radeon_cursor_move_locked(str
 		       yorigin * 256);
 	}
 
-	radeon_crtc->cursor_x = x;
-	radeon_crtc->cursor_y = y;
+	if (radeon_crtc->cursor_out_of_bounds) {
+		radeon_crtc->cursor_out_of_bounds = false;
+		if (radeon_crtc->cursor_bo)
+			radeon_show_cursor(crtc);
+	}
+
+	return 0;
 
+ out_of_bounds:
+	if (!radeon_crtc->cursor_out_of_bounds) {
+		radeon_hide_cursor(crtc);
+		radeon_crtc->cursor_out_of_bounds = true;
+	}
 	return 0;
 }
 
@@ -297,22 +321,23 @@ int radeon_crtc_cursor_set2(struct drm_c
 		return ret;
 	}
 
-	radeon_crtc->cursor_width = width;
-	radeon_crtc->cursor_height = height;
-
 	radeon_lock_cursor(crtc, true);
 
-	if (hot_x != radeon_crtc->cursor_hot_x ||
+	if (width != radeon_crtc->cursor_width ||
+	    height != radeon_crtc->cursor_height ||
+	    hot_x != radeon_crtc->cursor_hot_x ||
 	    hot_y != radeon_crtc->cursor_hot_y) {
 		int x, y;
 
 		x = radeon_crtc->cursor_x + radeon_crtc->cursor_hot_x - hot_x;
 		y = radeon_crtc->cursor_y + radeon_crtc->cursor_hot_y - hot_y;
 
-		radeon_cursor_move_locked(crtc, x, y);
-
+		radeon_crtc->cursor_width = width;
+		radeon_crtc->cursor_height = height;
 		radeon_crtc->cursor_hot_x = hot_x;
 		radeon_crtc->cursor_hot_y = hot_y;
+
+		radeon_cursor_move_locked(crtc, x, y);
 	}
 
 	radeon_show_cursor(crtc);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/radeon/radeon_device.c linux-libre-4.4.107-gnu/drivers/gpu/drm/radeon/radeon_device.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/radeon/radeon_device.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/radeon/radeon_device.c	2017-12-20 04:05:01.000000000 -0500
@@ -127,6 +127,10 @@ static struct radeon_px_quirk radeon_px_
 	 * https://bugzilla.kernel.org/show_bug.cgi?id=51381
 	 */
 	{ PCI_VENDOR_ID_ATI, 0x6840, 0x1043, 0x2122, RADEON_PX_QUIRK_DISABLE_PX },
+	/* Asus K53TK laptop with AMD A6-3420M APU and Radeon 7670m GPU
+	 * https://bugs.freedesktop.org/show_bug.cgi?id=101491
+	 */
+	{ PCI_VENDOR_ID_ATI, 0x6741, 0x1043, 0x2122, RADEON_PX_QUIRK_DISABLE_PX },
 	/* macbook pro 8.2 */
 	{ PCI_VENDOR_ID_ATI, 0x6741, PCI_VENDOR_ID_APPLE, 0x00e2, RADEON_PX_QUIRK_LONG_WAKEUP },
 	{ 0, 0, 0, 0, 0 },
@@ -630,6 +634,23 @@ void radeon_gtt_location(struct radeon_d
 /*
  * GPU helpers function.
  */
+
+/**
+ * radeon_device_is_virtual - check if we are running is a virtual environment
+ *
+ * Check if the asic has been passed through to a VM (all asics).
+ * Used at driver startup.
+ * Returns true if virtual or false if not.
+ */
+static bool radeon_device_is_virtual(void)
+{
+#ifdef CONFIG_X86
+	return boot_cpu_has(X86_FEATURE_HYPERVISOR);
+#else
+	return false;
+#endif
+}
+
 /**
  * radeon_card_posted - check if the hw has already been initialized
  *
@@ -643,6 +664,11 @@ bool radeon_card_posted(struct radeon_de
 {
 	uint32_t reg;
 
+	/* for pass through, always force asic_init for CI */
+	if (rdev->family >= CHIP_BONAIRE &&
+	    radeon_device_is_virtual())
+		return false;
+
 	/* required for EFI mode on macbook2,1 which uses an r5xx asic */
 	if (efi_enabled(EFI_BOOT) &&
 	    (rdev->pdev->subsystem_vendor == PCI_VENDOR_ID_APPLE) &&
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/radeon/radeon_display.c linux-libre-4.4.107-gnu/drivers/gpu/drm/radeon/radeon_display.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/radeon/radeon_display.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/radeon/radeon_display.c	2017-12-20 04:05:01.000000000 -0500
@@ -403,7 +403,8 @@ static void radeon_flip_work_func(struct
 	struct drm_crtc *crtc = &radeon_crtc->base;
 	unsigned long flags;
 	int r;
-	int vpos, hpos, stat, min_udelay;
+	int vpos, hpos, stat, min_udelay = 0;
+	unsigned repcnt = 4;
 	struct drm_vblank_crtc *vblank = &crtc->dev->vblank[work->crtc_id];
 
         down_read(&rdev->exclusive_lock);
@@ -454,7 +455,7 @@ static void radeon_flip_work_func(struct
 	 * In practice this won't execute very often unless on very fast
 	 * machines because the time window for this to happen is very small.
 	 */
-	for (;;) {
+	while (radeon_crtc->enabled && --repcnt) {
 		/* GET_DISTANCE_TO_VBLANKSTART returns distance to real vblank
 		 * start in hpos, and to the "fudged earlier" vblank start in
 		 * vpos.
@@ -470,12 +471,24 @@ static void radeon_flip_work_func(struct
 			break;
 
 		/* Sleep at least until estimated real start of hw vblank */
-		spin_unlock_irqrestore(&crtc->dev->event_lock, flags);
 		min_udelay = (-hpos + 1) * max(vblank->linedur_ns / 1000, 5);
+		if (min_udelay > vblank->framedur_ns / 2000) {
+			/* Don't wait ridiculously long - something is wrong */
+			repcnt = 0;
+			break;
+		}
+		spin_unlock_irqrestore(&crtc->dev->event_lock, flags);
 		usleep_range(min_udelay, 2 * min_udelay);
 		spin_lock_irqsave(&crtc->dev->event_lock, flags);
 	};
 
+	if (!repcnt)
+		DRM_DEBUG_DRIVER("Delay problem on crtc %d: min_udelay %d, "
+				 "framedur %d, linedur %d, stat %d, vpos %d, "
+				 "hpos %d\n", work->crtc_id, min_udelay,
+				 vblank->framedur_ns / 1000,
+				 vblank->linedur_ns / 1000, stat, vpos, hpos);
+
 	/* do the flip (mmio) */
 	radeon_page_flip(rdev, radeon_crtc->crtc_id, work->base);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/radeon/radeon_dp_mst.c linux-libre-4.4.107-gnu/drivers/gpu/drm/radeon/radeon_dp_mst.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/radeon/radeon_dp_mst.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/radeon/radeon_dp_mst.c	2017-12-20 04:05:01.000000000 -0500
@@ -525,11 +525,9 @@ static bool radeon_mst_mode_fixup(struct
 	drm_mode_set_crtcinfo(adjusted_mode, 0);
 	{
 	  struct radeon_connector_atom_dig *dig_connector;
-
 	  dig_connector = mst_enc->connector->con_priv;
 	  dig_connector->dp_lane_count = drm_dp_max_lane_count(dig_connector->dpcd);
-	  dig_connector->dp_clock = radeon_dp_get_max_link_rate(&mst_enc->connector->base,
-								dig_connector->dpcd);
+	  dig_connector->dp_clock = drm_dp_max_link_rate(dig_connector->dpcd);
 	  DRM_DEBUG_KMS("dig clock %p %d %d\n", dig_connector,
 			dig_connector->dp_lane_count, dig_connector->dp_clock);
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/radeon/radeon_fb.c linux-libre-4.4.107-gnu/drivers/gpu/drm/radeon/radeon_fb.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/radeon/radeon_fb.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/radeon/radeon_fb.c	2017-12-20 04:05:01.000000000 -0500
@@ -226,7 +226,6 @@ static int radeonfb_create(struct drm_fb
 	}
 
 	info->par = rfbdev;
-	info->skip_vt_switch = true;
 
 	ret = radeon_framebuffer_init(rdev->ddev, &rfbdev->rfb, &mode_cmd, gobj);
 	if (ret) {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/radeon/radeon.h linux-libre-4.4.107-gnu/drivers/gpu/drm/radeon/radeon.h
--- linux-libre-4.4-gnu/drivers/gpu/drm/radeon/radeon.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/radeon/radeon.h	2017-12-20 04:05:01.000000000 -0500
@@ -268,6 +268,7 @@ struct radeon_clock {
 	uint32_t current_dispclk;
 	uint32_t dp_extclk;
 	uint32_t max_pixel_clock;
+	uint32_t vco_freq;
 };
 
 /*
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/radeon/radeon_legacy_crtc.c linux-libre-4.4.107-gnu/drivers/gpu/drm/radeon/radeon_legacy_crtc.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/radeon/radeon_legacy_crtc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/radeon/radeon_legacy_crtc.c	2017-12-20 04:05:01.000000000 -0500
@@ -331,6 +331,8 @@ static void radeon_crtc_dpms(struct drm_
 			WREG32_P(RADEON_CRTC_EXT_CNTL, crtc_ext_cntl, ~(mask | crtc_ext_cntl));
 		}
 		drm_vblank_post_modeset(dev, radeon_crtc->crtc_id);
+		/* Make sure vblank interrupt is still enabled if needed */
+		radeon_irq_set(rdev);
 		radeon_crtc_load_lut(crtc);
 		break;
 	case DRM_MODE_DPMS_STANDBY:
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/radeon/radeon_mode.h linux-libre-4.4.107-gnu/drivers/gpu/drm/radeon/radeon_mode.h
--- linux-libre-4.4-gnu/drivers/gpu/drm/radeon/radeon_mode.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/radeon/radeon_mode.h	2017-12-20 04:05:01.000000000 -0500
@@ -330,6 +330,7 @@ struct radeon_crtc {
 	u16 lut_r[256], lut_g[256], lut_b[256];
 	bool enabled;
 	bool can_tile;
+	bool cursor_out_of_bounds;
 	uint32_t crtc_offset;
 	struct drm_gem_object *cursor_bo;
 	uint64_t cursor_addr;
@@ -757,8 +758,10 @@ extern u8 radeon_dp_getsinktype(struct r
 extern bool radeon_dp_getdpcd(struct radeon_connector *radeon_connector);
 extern int radeon_dp_get_panel_mode(struct drm_encoder *encoder,
 				    struct drm_connector *connector);
-int radeon_dp_get_max_link_rate(struct drm_connector *connector,
-				const u8 *dpcd);
+extern int radeon_dp_get_dp_link_config(struct drm_connector *connector,
+					const u8 *dpcd,
+					unsigned pix_clock,
+					unsigned *dp_lanes, unsigned *dp_rate);
 extern void radeon_dp_set_rx_power_state(struct drm_connector *connector,
 					 u8 power_state);
 extern void radeon_dp_aux_init(struct radeon_connector *radeon_connector);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/radeon/radeon_object.c linux-libre-4.4.107-gnu/drivers/gpu/drm/radeon/radeon_object.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/radeon/radeon_object.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/radeon/radeon_object.c	2017-12-20 04:05:01.000000000 -0500
@@ -33,6 +33,7 @@
 #include <linux/slab.h>
 #include <drm/drmP.h>
 #include <drm/radeon_drm.h>
+#include <drm/drm_cache.h>
 #include "radeon.h"
 #include "radeon_trace.h"
 
@@ -245,6 +246,12 @@ int radeon_bo_create(struct radeon_devic
 		DRM_INFO_ONCE("Please enable CONFIG_MTRR and CONFIG_X86_PAT for "
 			      "better performance thanks to write-combining\n");
 	bo->flags &= ~(RADEON_GEM_GTT_WC | RADEON_GEM_GTT_UC);
+#else
+	/* For architectures that don't support WC memory,
+	 * mask out the WC flag from the BO
+	 */
+	if (!drm_arch_can_wc_memory())
+		bo->flags &= ~RADEON_GEM_GTT_WC;
 #endif
 
 	radeon_ttm_placement_from_domain(bo, domain);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/radeon/radeon_pm.c linux-libre-4.4.107-gnu/drivers/gpu/drm/radeon/radeon_pm.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/radeon/radeon_pm.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/radeon/radeon_pm.c	2017-12-20 04:05:01.000000000 -0500
@@ -1078,10 +1078,6 @@ force:
 	/* update displays */
 	radeon_dpm_display_configuration_changed(rdev);
 
-	rdev->pm.dpm.current_active_crtcs = rdev->pm.dpm.new_active_crtcs;
-	rdev->pm.dpm.current_active_crtc_count = rdev->pm.dpm.new_active_crtc_count;
-	rdev->pm.dpm.single_display = single_display;
-
 	/* wait for the rings to drain */
 	for (i = 0; i < RADEON_NUM_RINGS; i++) {
 		struct radeon_ring *ring = &rdev->ring[i];
@@ -1097,6 +1093,10 @@ force:
 
 	radeon_dpm_post_set_power_state(rdev);
 
+	rdev->pm.dpm.current_active_crtcs = rdev->pm.dpm.new_active_crtcs;
+	rdev->pm.dpm.current_active_crtc_count = rdev->pm.dpm.new_active_crtc_count;
+	rdev->pm.dpm.single_display = single_display;
+
 	if (rdev->asic->dpm.force_performance_level) {
 		if (rdev->pm.dpm.thermal_active) {
 			enum radeon_dpm_forced_level level = rdev->pm.dpm.forced_level;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/radeon/radeon_sa.c linux-libre-4.4.107-gnu/drivers/gpu/drm/radeon/radeon_sa.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/radeon/radeon_sa.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/radeon/radeon_sa.c	2017-12-20 04:05:01.000000000 -0500
@@ -349,8 +349,13 @@ int radeon_sa_bo_new(struct radeon_devic
 			/* see if we can skip over some allocations */
 		} while (radeon_sa_bo_next_hole(sa_manager, fences, tries));
 
+		for (i = 0; i < RADEON_NUM_RINGS; ++i)
+			radeon_fence_ref(fences[i]);
+
 		spin_unlock(&sa_manager->wq.lock);
 		r = radeon_fence_wait_any(rdev, fences, false);
+		for (i = 0; i < RADEON_NUM_RINGS; ++i)
+			radeon_fence_unref(&fences[i]);
 		spin_lock(&sa_manager->wq.lock);
 		/* if we have nothing to wait for block */
 		if (r == -ENOENT) {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/radeon/radeon_ttm.c linux-libre-4.4.107-gnu/drivers/gpu/drm/radeon/radeon_ttm.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/radeon/radeon_ttm.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/radeon/radeon_ttm.c	2017-12-20 04:05:01.000000000 -0500
@@ -213,8 +213,8 @@ static void radeon_evict_flags(struct tt
 			rbo->placement.num_busy_placement = 0;
 			for (i = 0; i < rbo->placement.num_placement; i++) {
 				if (rbo->placements[i].flags & TTM_PL_FLAG_VRAM) {
-					if (rbo->placements[0].fpfn < fpfn)
-						rbo->placements[0].fpfn = fpfn;
+					if (rbo->placements[i].fpfn < fpfn)
+						rbo->placements[i].fpfn = fpfn;
 				} else {
 					rbo->placement.busy_placement =
 						&rbo->placements[i];
@@ -235,6 +235,8 @@ static int radeon_verify_access(struct t
 {
 	struct radeon_bo *rbo = container_of(bo, struct radeon_bo, tbo);
 
+	if (radeon_ttm_tt_has_userptr(bo->ttm))
+		return -EPERM;
 	return drm_vma_node_verify_access(&rbo->gem_base.vma_node, filp);
 }
 
@@ -261,8 +263,8 @@ static int radeon_move_blit(struct ttm_b
 
 	rdev = radeon_get_rdev(bo->bdev);
 	ridx = radeon_copy_ring_index(rdev);
-	old_start = old_mem->start << PAGE_SHIFT;
-	new_start = new_mem->start << PAGE_SHIFT;
+	old_start = (u64)old_mem->start << PAGE_SHIFT;
+	new_start = (u64)new_mem->start << PAGE_SHIFT;
 
 	switch (old_mem->mem_type) {
 	case TTM_PL_VRAM:
@@ -758,7 +760,7 @@ static int radeon_ttm_tt_populate(struct
 						       0, PAGE_SIZE,
 						       PCI_DMA_BIDIRECTIONAL);
 		if (pci_dma_mapping_error(rdev->pdev, gtt->ttm.dma_address[i])) {
-			while (--i) {
+			while (i--) {
 				pci_unmap_page(rdev->pdev, gtt->ttm.dma_address[i],
 					       PAGE_SIZE, PCI_DMA_BIDIRECTIONAL);
 				gtt->ttm.dma_address[i] = 0;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/radeon/radeon_vm.c linux-libre-4.4.107-gnu/drivers/gpu/drm/radeon/radeon_vm.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/radeon/radeon_vm.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/radeon/radeon_vm.c	2017-12-20 04:05:01.000000000 -0500
@@ -455,15 +455,15 @@ int radeon_vm_bo_set_addr(struct radeon_
 
 	if (soffset) {
 		/* make sure object fit at this offset */
-		eoffset = soffset + size;
+		eoffset = soffset + size - 1;
 		if (soffset >= eoffset) {
 			r = -EINVAL;
 			goto error_unreserve;
 		}
 
 		last_pfn = eoffset / RADEON_GPU_PAGE_SIZE;
-		if (last_pfn > rdev->vm_manager.max_pfn) {
-			dev_err(rdev->dev, "va above limit (0x%08X > 0x%08X)\n",
+		if (last_pfn >= rdev->vm_manager.max_pfn) {
+			dev_err(rdev->dev, "va above limit (0x%08X >= 0x%08X)\n",
 				last_pfn, rdev->vm_manager.max_pfn);
 			r = -EINVAL;
 			goto error_unreserve;
@@ -478,7 +478,7 @@ int radeon_vm_bo_set_addr(struct radeon_
 	eoffset /= RADEON_GPU_PAGE_SIZE;
 	if (soffset || eoffset) {
 		struct interval_tree_node *it;
-		it = interval_tree_iter_first(&vm->va, soffset, eoffset - 1);
+		it = interval_tree_iter_first(&vm->va, soffset, eoffset);
 		if (it && it != &bo_va->it) {
 			struct radeon_bo_va *tmp;
 			tmp = container_of(it, struct radeon_bo_va, it);
@@ -518,7 +518,7 @@ int radeon_vm_bo_set_addr(struct radeon_
 	if (soffset || eoffset) {
 		spin_lock(&vm->status_lock);
 		bo_va->it.start = soffset;
-		bo_va->it.last = eoffset - 1;
+		bo_va->it.last = eoffset;
 		list_add(&bo_va->vm_status, &vm->cleared);
 		spin_unlock(&vm->status_lock);
 		interval_tree_insert(&bo_va->it, &vm->va);
@@ -888,7 +888,7 @@ static void radeon_vm_fence_pts(struct r
 	unsigned i;
 
 	start >>= radeon_vm_block_size;
-	end >>= radeon_vm_block_size;
+	end = (end - 1) >> radeon_vm_block_size;
 
 	for (i = start; i <= end; ++i)
 		radeon_bo_fence(vm->page_tables[i].bo, fence, true);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/radeon/si.c linux-libre-4.4.107-gnu/drivers/gpu/drm/radeon/si.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/radeon/si.c	2016-01-10 20:57:39.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/radeon/si.c	2017-12-20 11:12:15.000000000 -0500
@@ -6262,7 +6262,7 @@ static inline void si_irq_ack(struct rad
 		WREG32(DC_HPD5_INT_CONTROL, tmp);
 	}
 	if (rdev->irq.stat_regs.evergreen.disp_int_cont5 & DC_HPD6_INTERRUPT) {
-		tmp = RREG32(DC_HPD5_INT_CONTROL);
+		tmp = RREG32(DC_HPD6_INT_CONTROL);
 		tmp |= DC_HPDx_INT_ACK;
 		WREG32(DC_HPD6_INT_CONTROL, tmp);
 	}
@@ -6293,7 +6293,7 @@ static inline void si_irq_ack(struct rad
 		WREG32(DC_HPD5_INT_CONTROL, tmp);
 	}
 	if (rdev->irq.stat_regs.evergreen.disp_int_cont5 & DC_HPD6_RX_INTERRUPT) {
-		tmp = RREG32(DC_HPD5_INT_CONTROL);
+		tmp = RREG32(DC_HPD6_INT_CONTROL);
 		tmp |= DC_HPDx_RX_INT_ACK;
 		WREG32(DC_HPD6_INT_CONTROL, tmp);
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/radeon/sid.h linux-libre-4.4.107-gnu/drivers/gpu/drm/radeon/sid.h
--- linux-libre-4.4-gnu/drivers/gpu/drm/radeon/sid.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/radeon/sid.h	2017-12-20 04:05:01.000000000 -0500
@@ -915,6 +915,11 @@
 #define DCCG_AUDIO_DTO1_PHASE                           0x05c0
 #define DCCG_AUDIO_DTO1_MODULE                          0x05c4
 
+#define DENTIST_DISPCLK_CNTL				0x0490
+#	define DENTIST_DPREFCLK_WDIVIDER(x)		(((x) & 0x7f) << 24)
+#	define DENTIST_DPREFCLK_WDIVIDER_MASK		(0x7f << 24)
+#	define DENTIST_DPREFCLK_WDIVIDER_SHIFT		24
+
 #define AFMT_AUDIO_SRC_CONTROL                          0x713c
 #define		AFMT_AUDIO_SRC_SELECT(x)		(((x) & 7) << 0)
 /* AFMT_AUDIO_SRC_SELECT
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/radeon/si_dpm.c linux-libre-4.4.107-gnu/drivers/gpu/drm/radeon/si_dpm.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/radeon/si_dpm.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/radeon/si_dpm.c	2017-12-20 04:05:01.000000000 -0500
@@ -2926,9 +2926,12 @@ static struct si_dpm_quirk si_dpm_quirk_
 	/* PITCAIRN - https://bugs.freedesktop.org/show_bug.cgi?id=76490 */
 	{ PCI_VENDOR_ID_ATI, 0x6810, 0x1462, 0x3036, 0, 120000 },
 	{ PCI_VENDOR_ID_ATI, 0x6811, 0x174b, 0xe271, 0, 120000 },
+	{ PCI_VENDOR_ID_ATI, 0x6811, 0x174b, 0x2015, 0, 120000 },
 	{ PCI_VENDOR_ID_ATI, 0x6810, 0x174b, 0xe271, 85000, 90000 },
 	{ PCI_VENDOR_ID_ATI, 0x6811, 0x1462, 0x2015, 0, 120000 },
 	{ PCI_VENDOR_ID_ATI, 0x6811, 0x1043, 0x2015, 0, 120000 },
+	{ PCI_VENDOR_ID_ATI, 0x6811, 0x148c, 0x2015, 0, 120000 },
+	{ PCI_VENDOR_ID_ATI, 0x6810, 0x1682, 0x9275, 0, 120000 },
 	{ 0, 0, 0, 0 },
 };
 
@@ -2996,6 +2999,47 @@ static void si_apply_state_adjust_rules(
 	int i;
 	struct si_dpm_quirk *p = si_dpm_quirk_list;
 
+	/* limit all SI kickers */
+	if (rdev->family == CHIP_PITCAIRN) {
+		if ((rdev->pdev->revision == 0x81) ||
+		    (rdev->pdev->device == 0x6810) ||
+		    (rdev->pdev->device == 0x6811) ||
+		    (rdev->pdev->device == 0x6816) ||
+		    (rdev->pdev->device == 0x6817) ||
+		    (rdev->pdev->device == 0x6806))
+			max_mclk = 120000;
+	} else if (rdev->family == CHIP_OLAND) {
+		if ((rdev->pdev->revision == 0xC7) ||
+		    (rdev->pdev->revision == 0x80) ||
+		    (rdev->pdev->revision == 0x81) ||
+		    (rdev->pdev->revision == 0x83) ||
+		    (rdev->pdev->revision == 0x87) ||
+		    (rdev->pdev->device == 0x6604) ||
+		    (rdev->pdev->device == 0x6605)) {
+			max_sclk = 75000;
+			max_mclk = 80000;
+		}
+	} else if (rdev->family == CHIP_HAINAN) {
+		if ((rdev->pdev->revision == 0x81) ||
+		    (rdev->pdev->revision == 0x83) ||
+		    (rdev->pdev->revision == 0xC3) ||
+		    (rdev->pdev->device == 0x6664) ||
+		    (rdev->pdev->device == 0x6665) ||
+		    (rdev->pdev->device == 0x6667)) {
+			max_sclk = 75000;
+			max_mclk = 80000;
+		}
+	} else if (rdev->family == CHIP_OLAND) {
+		if ((rdev->pdev->revision == 0xC7) ||
+		    (rdev->pdev->revision == 0x80) ||
+		    (rdev->pdev->revision == 0x81) ||
+		    (rdev->pdev->revision == 0x83) ||
+		    (rdev->pdev->revision == 0x87) ||
+		    (rdev->pdev->device == 0x6604) ||
+		    (rdev->pdev->device == 0x6605)) {
+			max_sclk = 75000;
+		}
+	}
 	/* Apply dpm quirks */
 	while (p && p->chip_device != 0) {
 		if (rdev->pdev->vendor == p->chip_vendor &&
@@ -4099,7 +4143,7 @@ static int si_populate_smc_voltage_table
 							      &rdev->pm.dpm.dyn_state.phase_shedding_limits_table)) {
 				si_populate_smc_voltage_table(rdev, &si_pi->vddc_phase_shed_table, table);
 
-				table->phaseMaskTable.lowMask[SISLANDS_SMC_VOLTAGEMASK_VDDC] =
+				table->phaseMaskTable.lowMask[SISLANDS_SMC_VOLTAGEMASK_VDDC_PHASE_SHEDDING] =
 					cpu_to_be32(si_pi->vddc_phase_shed_table.mask_low);
 
 				si_write_smc_soft_register(rdev, SI_SMC_SOFT_REGISTER_phase_shedding_delay,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/radeon/sislands_smc.h linux-libre-4.4.107-gnu/drivers/gpu/drm/radeon/sislands_smc.h
--- linux-libre-4.4-gnu/drivers/gpu/drm/radeon/sislands_smc.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/radeon/sislands_smc.h	2017-12-20 04:05:01.000000000 -0500
@@ -194,6 +194,7 @@ typedef struct SISLANDS_SMC_SWSTATE SISL
 #define SISLANDS_SMC_VOLTAGEMASK_VDDC  0
 #define SISLANDS_SMC_VOLTAGEMASK_MVDD  1
 #define SISLANDS_SMC_VOLTAGEMASK_VDDCI 2
+#define SISLANDS_SMC_VOLTAGEMASK_VDDC_PHASE_SHEDDING 3
 #define SISLANDS_SMC_VOLTAGEMASK_MAX   4
 
 struct SISLANDS_SMC_VOLTAGEMASKTABLE
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/radeon/vce_v1_0.c linux-libre-4.4.107-gnu/drivers/gpu/drm/radeon/vce_v1_0.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/radeon/vce_v1_0.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/radeon/vce_v1_0.c	2017-12-20 04:05:01.000000000 -0500
@@ -178,12 +178,12 @@ int vce_v1_0_load_fw(struct radeon_devic
 		return -EINVAL;
 	}
 
-	for (i = 0; i < sign->num; ++i) {
-		if (sign->val[i].chip_id == chip_id)
+	for (i = 0; i < le32_to_cpu(sign->num); ++i) {
+		if (le32_to_cpu(sign->val[i].chip_id) == chip_id)
 			break;
 	}
 
-	if (i == sign->num)
+	if (i == le32_to_cpu(sign->num))
 		return -EINVAL;
 
 	data += (256 - 64) / 4;
@@ -191,18 +191,18 @@ int vce_v1_0_load_fw(struct radeon_devic
 	data[1] = sign->val[i].nonce[1];
 	data[2] = sign->val[i].nonce[2];
 	data[3] = sign->val[i].nonce[3];
-	data[4] = sign->len + 64;
+	data[4] = cpu_to_le32(le32_to_cpu(sign->len) + 64);
 
 	memset(&data[5], 0, 44);
 	memcpy(&data[16], &sign[1], rdev->vce_fw->size - sizeof(*sign));
 
-	data += data[4] / 4;
+	data += le32_to_cpu(data[4]) / 4;
 	data[0] = sign->val[i].sigval[0];
 	data[1] = sign->val[i].sigval[1];
 	data[2] = sign->val[i].sigval[2];
 	data[3] = sign->val[i].sigval[3];
 
-	rdev->vce.keyselect = sign->val[i].keyselect;
+	rdev->vce.keyselect = le32_to_cpu(sign->val[i].keyselect);
 
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/rcar-du/rcar_du_crtc.c linux-libre-4.4.107-gnu/drivers/gpu/drm/rcar-du/rcar_du_crtc.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/rcar-du/rcar_du_crtc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/rcar-du/rcar_du_crtc.c	2017-12-20 04:05:01.000000000 -0500
@@ -148,8 +148,8 @@ static void rcar_du_crtc_set_display_tim
 	rcar_du_group_write(rcrtc->group, rcrtc->index % 2 ? OTAR2 : OTAR, 0);
 
 	/* Signal polarities */
-	value = ((mode->flags & DRM_MODE_FLAG_PVSYNC) ? 0 : DSMR_VSL)
-	      | ((mode->flags & DRM_MODE_FLAG_PHSYNC) ? 0 : DSMR_HSL)
+	value = ((mode->flags & DRM_MODE_FLAG_PVSYNC) ? DSMR_VSL : 0)
+	      | ((mode->flags & DRM_MODE_FLAG_PHSYNC) ? DSMR_HSL : 0)
 	      | DSMR_DIPM_DE | DSMR_CSPM;
 	rcar_du_crtc_write(rcrtc, DSMR, value);
 
@@ -171,7 +171,7 @@ static void rcar_du_crtc_set_display_tim
 					mode->crtc_vsync_start - 1);
 	rcar_du_crtc_write(rcrtc, VCR,  mode->crtc_vtotal - 1);
 
-	rcar_du_crtc_write(rcrtc, DESR,  mode->htotal - mode->hsync_start);
+	rcar_du_crtc_write(rcrtc, DESR,  mode->htotal - mode->hsync_start - 1);
 	rcar_du_crtc_write(rcrtc, DEWR,  mode->hdisplay);
 }
 
@@ -282,26 +282,6 @@ static void rcar_du_crtc_update_planes(s
  * Page Flip
  */
 
-void rcar_du_crtc_cancel_page_flip(struct rcar_du_crtc *rcrtc,
-				   struct drm_file *file)
-{
-	struct drm_pending_vblank_event *event;
-	struct drm_device *dev = rcrtc->crtc.dev;
-	unsigned long flags;
-
-	/* Destroy the pending vertical blanking event associated with the
-	 * pending page flip, if any, and disable vertical blanking interrupts.
-	 */
-	spin_lock_irqsave(&dev->event_lock, flags);
-	event = rcrtc->event;
-	if (event && event->base.file_priv == file) {
-		rcrtc->event = NULL;
-		event->base.destroy(&event->base);
-		drm_crtc_vblank_put(&rcrtc->crtc);
-	}
-	spin_unlock_irqrestore(&dev->event_lock, flags);
-}
-
 static void rcar_du_crtc_finish_page_flip(struct rcar_du_crtc *rcrtc)
 {
 	struct drm_pending_vblank_event *event;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/rcar-du/rcar_du_crtc.h linux-libre-4.4.107-gnu/drivers/gpu/drm/rcar-du/rcar_du_crtc.h
--- linux-libre-4.4-gnu/drivers/gpu/drm/rcar-du/rcar_du_crtc.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/rcar-du/rcar_du_crtc.h	2017-12-20 04:05:01.000000000 -0500
@@ -67,8 +67,6 @@ enum rcar_du_output {
 
 int rcar_du_crtc_create(struct rcar_du_group *rgrp, unsigned int index);
 void rcar_du_crtc_enable_vblank(struct rcar_du_crtc *rcrtc, bool enable);
-void rcar_du_crtc_cancel_page_flip(struct rcar_du_crtc *rcrtc,
-				   struct drm_file *file);
 void rcar_du_crtc_suspend(struct rcar_du_crtc *rcrtc);
 void rcar_du_crtc_resume(struct rcar_du_crtc *rcrtc);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/rcar-du/rcar_du_drv.c linux-libre-4.4.107-gnu/drivers/gpu/drm/rcar-du/rcar_du_drv.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/rcar-du/rcar_du_drv.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/rcar-du/rcar_du_drv.c	2017-12-20 04:05:01.000000000 -0500
@@ -144,91 +144,6 @@ MODULE_DEVICE_TABLE(of, rcar_du_of_table
  * DRM operations
  */
 
-static int rcar_du_unload(struct drm_device *dev)
-{
-	struct rcar_du_device *rcdu = dev->dev_private;
-
-	if (rcdu->fbdev)
-		drm_fbdev_cma_fini(rcdu->fbdev);
-
-	drm_kms_helper_poll_fini(dev);
-	drm_mode_config_cleanup(dev);
-	drm_vblank_cleanup(dev);
-
-	dev->irq_enabled = 0;
-	dev->dev_private = NULL;
-
-	return 0;
-}
-
-static int rcar_du_load(struct drm_device *dev, unsigned long flags)
-{
-	struct platform_device *pdev = dev->platformdev;
-	struct device_node *np = pdev->dev.of_node;
-	struct rcar_du_device *rcdu;
-	struct resource *mem;
-	int ret;
-
-	if (np == NULL) {
-		dev_err(dev->dev, "no platform data\n");
-		return -ENODEV;
-	}
-
-	rcdu = devm_kzalloc(&pdev->dev, sizeof(*rcdu), GFP_KERNEL);
-	if (rcdu == NULL) {
-		dev_err(dev->dev, "failed to allocate private data\n");
-		return -ENOMEM;
-	}
-
-	init_waitqueue_head(&rcdu->commit.wait);
-
-	rcdu->dev = &pdev->dev;
-	rcdu->info = of_match_device(rcar_du_of_table, rcdu->dev)->data;
-	rcdu->ddev = dev;
-	dev->dev_private = rcdu;
-
-	/* I/O resources */
-	mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	rcdu->mmio = devm_ioremap_resource(&pdev->dev, mem);
-	if (IS_ERR(rcdu->mmio))
-		return PTR_ERR(rcdu->mmio);
-
-	/* Initialize vertical blanking interrupts handling. Start with vblank
-	 * disabled for all CRTCs.
-	 */
-	ret = drm_vblank_init(dev, (1 << rcdu->info->num_crtcs) - 1);
-	if (ret < 0) {
-		dev_err(&pdev->dev, "failed to initialize vblank\n");
-		goto done;
-	}
-
-	/* DRM/KMS objects */
-	ret = rcar_du_modeset_init(rcdu);
-	if (ret < 0) {
-		dev_err(&pdev->dev, "failed to initialize DRM/KMS (%d)\n", ret);
-		goto done;
-	}
-
-	dev->irq_enabled = 1;
-
-	platform_set_drvdata(pdev, rcdu);
-
-done:
-	if (ret)
-		rcar_du_unload(dev);
-
-	return ret;
-}
-
-static void rcar_du_preclose(struct drm_device *dev, struct drm_file *file)
-{
-	struct rcar_du_device *rcdu = dev->dev_private;
-	unsigned int i;
-
-	for (i = 0; i < rcdu->num_crtcs; ++i)
-		rcar_du_crtc_cancel_page_flip(&rcdu->crtcs[i], file);
-}
-
 static void rcar_du_lastclose(struct drm_device *dev)
 {
 	struct rcar_du_device *rcdu = dev->dev_private;
@@ -269,11 +184,7 @@ static const struct file_operations rcar
 static struct drm_driver rcar_du_driver = {
 	.driver_features	= DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME
 				| DRIVER_ATOMIC,
-	.load			= rcar_du_load,
-	.unload			= rcar_du_unload,
-	.preclose		= rcar_du_preclose,
 	.lastclose		= rcar_du_lastclose,
-	.set_busid		= drm_platform_set_busid,
 	.get_vblank_counter	= drm_vblank_no_hw_counter,
 	.enable_vblank		= rcar_du_enable_vblank,
 	.disable_vblank		= rcar_du_disable_vblank,
@@ -333,18 +244,104 @@ static const struct dev_pm_ops rcar_du_p
  * Platform driver
  */
 
-static int rcar_du_probe(struct platform_device *pdev)
+static int rcar_du_remove(struct platform_device *pdev)
 {
-	return drm_platform_init(&rcar_du_driver, pdev);
+	struct rcar_du_device *rcdu = platform_get_drvdata(pdev);
+	struct drm_device *ddev = rcdu->ddev;
+
+	mutex_lock(&ddev->mode_config.mutex);
+	drm_connector_unplug_all(ddev);
+	mutex_unlock(&ddev->mode_config.mutex);
+
+	drm_dev_unregister(ddev);
+
+	if (rcdu->fbdev)
+		drm_fbdev_cma_fini(rcdu->fbdev);
+
+	drm_kms_helper_poll_fini(ddev);
+	drm_mode_config_cleanup(ddev);
+
+	drm_dev_unref(ddev);
+
+	return 0;
 }
 
-static int rcar_du_remove(struct platform_device *pdev)
+static int rcar_du_probe(struct platform_device *pdev)
 {
-	struct rcar_du_device *rcdu = platform_get_drvdata(pdev);
+	struct device_node *np = pdev->dev.of_node;
+	struct rcar_du_device *rcdu;
+	struct drm_connector *connector;
+	struct drm_device *ddev;
+	struct resource *mem;
+	int ret;
 
-	drm_put_dev(rcdu->ddev);
+	if (np == NULL) {
+		dev_err(&pdev->dev, "no device tree node\n");
+		return -ENODEV;
+	}
+
+	/* Allocate and initialize the DRM and R-Car device structures. */
+	rcdu = devm_kzalloc(&pdev->dev, sizeof(*rcdu), GFP_KERNEL);
+	if (rcdu == NULL)
+		return -ENOMEM;
+
+	init_waitqueue_head(&rcdu->commit.wait);
+
+	rcdu->dev = &pdev->dev;
+	rcdu->info = of_match_device(rcar_du_of_table, rcdu->dev)->data;
+
+	platform_set_drvdata(pdev, rcdu);
+
+	/* I/O resources */
+	mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	rcdu->mmio = devm_ioremap_resource(&pdev->dev, mem);
+	if (IS_ERR(rcdu->mmio))
+		return PTR_ERR(rcdu->mmio);
+
+	/* DRM/KMS objects */
+	ddev = drm_dev_alloc(&rcar_du_driver, &pdev->dev);
+	if (!ddev)
+		return -ENOMEM;
+
+	drm_dev_set_unique(ddev, dev_name(&pdev->dev));
+
+	rcdu->ddev = ddev;
+	ddev->dev_private = rcdu;
+
+	ret = rcar_du_modeset_init(rcdu);
+	if (ret < 0) {
+		dev_err(&pdev->dev, "failed to initialize DRM/KMS (%d)\n", ret);
+		goto error;
+	}
+
+	ddev->irq_enabled = 1;
+
+	/* Register the DRM device with the core and the connectors with
+	 * sysfs.
+	 */
+	ret = drm_dev_register(ddev, 0);
+	if (ret)
+		goto error;
+
+	mutex_lock(&ddev->mode_config.mutex);
+	drm_for_each_connector(connector, ddev) {
+		ret = drm_connector_register(connector);
+		if (ret < 0)
+			break;
+	}
+	mutex_unlock(&ddev->mode_config.mutex);
+
+	if (ret < 0)
+		goto error;
+
+	DRM_INFO("Device %s probed\n", dev_name(&pdev->dev));
 
 	return 0;
+
+error:
+	rcar_du_remove(pdev);
+
+	return ret;
 }
 
 static struct platform_driver rcar_du_platform_driver = {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/rcar-du/rcar_du_hdmicon.c linux-libre-4.4.107-gnu/drivers/gpu/drm/rcar-du/rcar_du_hdmicon.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/rcar-du/rcar_du_hdmicon.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/rcar-du/rcar_du_hdmicon.c	2017-12-20 04:05:01.000000000 -0500
@@ -55,12 +55,6 @@ static const struct drm_connector_helper
 	.best_encoder = rcar_du_connector_best_encoder,
 };
 
-static void rcar_du_hdmi_connector_destroy(struct drm_connector *connector)
-{
-	drm_connector_unregister(connector);
-	drm_connector_cleanup(connector);
-}
-
 static enum drm_connector_status
 rcar_du_hdmi_connector_detect(struct drm_connector *connector, bool force)
 {
@@ -79,7 +73,7 @@ static const struct drm_connector_funcs
 	.reset = drm_atomic_helper_connector_reset,
 	.detect = rcar_du_hdmi_connector_detect,
 	.fill_modes = drm_helper_probe_single_connector_modes,
-	.destroy = rcar_du_hdmi_connector_destroy,
+	.destroy = drm_connector_cleanup,
 	.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
 	.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
 };
@@ -108,9 +102,6 @@ int rcar_du_hdmi_connector_init(struct r
 		return ret;
 
 	drm_connector_helper_add(connector, &connector_helper_funcs);
-	ret = drm_connector_register(connector);
-	if (ret < 0)
-		return ret;
 
 	connector->dpms = DRM_MODE_DPMS_OFF;
 	drm_object_property_set_value(&connector->base,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/rcar-du/rcar_du_kms.c linux-libre-4.4.107-gnu/drivers/gpu/drm/rcar-du/rcar_du_kms.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/rcar-du/rcar_du_kms.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/rcar-du/rcar_du_kms.c	2017-12-20 04:05:01.000000000 -0500
@@ -642,13 +642,13 @@ static int rcar_du_encoders_init_one(str
 	}
 
 	ret = rcar_du_encoder_init(rcdu, enc_type, output, encoder, connector);
-	of_node_put(encoder);
-	of_node_put(connector);
-
 	if (ret && ret != -EPROBE_DEFER)
 		dev_warn(rcdu->dev,
-			 "failed to initialize encoder %s (%d), skipping\n",
-			 encoder->full_name, ret);
+			 "failed to initialize encoder %s on output %u (%d), skipping\n",
+			 of_node_full_name(encoder), output, ret);
+
+	of_node_put(encoder);
+	of_node_put(connector);
 
 	return ret;
 }
@@ -761,6 +761,13 @@ int rcar_du_modeset_init(struct rcar_du_
 	if (ret < 0)
 		return ret;
 
+	/* Initialize vertical blanking interrupts handling. Start with vblank
+	* disabled for all CRTCs.
+	*/
+	ret = drm_vblank_init(dev, (1 << rcdu->info->num_crtcs) - 1);
+	if (ret < 0)
+		return ret;
+
 	/* Initialize the groups. */
 	num_groups = DIV_ROUND_UP(rcdu->num_crtcs, 2);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/rcar-du/rcar_du_lvdscon.c linux-libre-4.4.107-gnu/drivers/gpu/drm/rcar-du/rcar_du_lvdscon.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/rcar-du/rcar_du_lvdscon.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/rcar-du/rcar_du_lvdscon.c	2017-12-20 04:05:01.000000000 -0500
@@ -62,12 +62,6 @@ static const struct drm_connector_helper
 	.best_encoder = rcar_du_connector_best_encoder,
 };
 
-static void rcar_du_lvds_connector_destroy(struct drm_connector *connector)
-{
-	drm_connector_unregister(connector);
-	drm_connector_cleanup(connector);
-}
-
 static enum drm_connector_status
 rcar_du_lvds_connector_detect(struct drm_connector *connector, bool force)
 {
@@ -79,7 +73,7 @@ static const struct drm_connector_funcs
 	.reset = drm_atomic_helper_connector_reset,
 	.detect = rcar_du_lvds_connector_detect,
 	.fill_modes = drm_helper_probe_single_connector_modes,
-	.destroy = rcar_du_lvds_connector_destroy,
+	.destroy = drm_connector_cleanup,
 	.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
 	.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
 };
@@ -117,9 +111,6 @@ int rcar_du_lvds_connector_init(struct r
 		return ret;
 
 	drm_connector_helper_add(connector, &connector_helper_funcs);
-	ret = drm_connector_register(connector);
-	if (ret < 0)
-		return ret;
 
 	connector->dpms = DRM_MODE_DPMS_OFF;
 	drm_object_property_set_value(&connector->base,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/rcar-du/rcar_du_lvdsenc.c linux-libre-4.4.107-gnu/drivers/gpu/drm/rcar-du/rcar_du_lvdsenc.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/rcar-du/rcar_du_lvdsenc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/rcar-du/rcar_du_lvdsenc.c	2017-12-20 04:05:01.000000000 -0500
@@ -56,11 +56,11 @@ static int rcar_du_lvdsenc_start(struct
 		return ret;
 
 	/* PLL clock configuration */
-	if (freq <= 38000)
+	if (freq < 39000)
 		pllcr = LVDPLLCR_CEEN | LVDPLLCR_COSEL | LVDPLLCR_PLLDLYCNT_38M;
-	else if (freq <= 60000)
+	else if (freq < 61000)
 		pllcr = LVDPLLCR_CEEN | LVDPLLCR_COSEL | LVDPLLCR_PLLDLYCNT_60M;
-	else if (freq <= 121000)
+	else if (freq < 121000)
 		pllcr = LVDPLLCR_CEEN | LVDPLLCR_COSEL | LVDPLLCR_PLLDLYCNT_121M;
 	else
 		pllcr = LVDPLLCR_PLLDLYCNT_150M;
@@ -102,7 +102,7 @@ static int rcar_du_lvdsenc_start(struct
 	/* Turn the PLL on, wait for the startup delay, and turn the output
 	 * on.
 	 */
-	lvdcr0 |= LVDCR0_PLLEN;
+	lvdcr0 |= LVDCR0_PLLON;
 	rcar_lvds_write(lvds, LVDCR0, lvdcr0);
 
 	usleep_range(100, 150);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/rcar-du/rcar_du_vgacon.c linux-libre-4.4.107-gnu/drivers/gpu/drm/rcar-du/rcar_du_vgacon.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/rcar-du/rcar_du_vgacon.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/rcar-du/rcar_du_vgacon.c	2017-12-20 04:05:01.000000000 -0500
@@ -31,12 +31,6 @@ static const struct drm_connector_helper
 	.best_encoder = rcar_du_connector_best_encoder,
 };
 
-static void rcar_du_vga_connector_destroy(struct drm_connector *connector)
-{
-	drm_connector_unregister(connector);
-	drm_connector_cleanup(connector);
-}
-
 static enum drm_connector_status
 rcar_du_vga_connector_detect(struct drm_connector *connector, bool force)
 {
@@ -48,7 +42,7 @@ static const struct drm_connector_funcs
 	.reset = drm_atomic_helper_connector_reset,
 	.detect = rcar_du_vga_connector_detect,
 	.fill_modes = drm_helper_probe_single_connector_modes,
-	.destroy = rcar_du_vga_connector_destroy,
+	.destroy = drm_connector_cleanup,
 	.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
 	.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
 };
@@ -76,9 +70,6 @@ int rcar_du_vga_connector_init(struct rc
 		return ret;
 
 	drm_connector_helper_add(connector, &connector_helper_funcs);
-	ret = drm_connector_register(connector);
-	if (ret < 0)
-		return ret;
 
 	connector->dpms = DRM_MODE_DPMS_OFF;
 	drm_object_property_set_value(&connector->base,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/rcar-du/rcar_lvds_regs.h linux-libre-4.4.107-gnu/drivers/gpu/drm/rcar-du/rcar_lvds_regs.h
--- linux-libre-4.4-gnu/drivers/gpu/drm/rcar-du/rcar_lvds_regs.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/rcar-du/rcar_lvds_regs.h	2017-12-20 04:05:01.000000000 -0500
@@ -18,7 +18,7 @@
 #define LVDCR0_DMD			(1 << 12)
 #define LVDCR0_LVMD_MASK		(0xf << 8)
 #define LVDCR0_LVMD_SHIFT		8
-#define LVDCR0_PLLEN			(1 << 4)
+#define LVDCR0_PLLON			(1 << 4)
 #define LVDCR0_BEN			(1 << 2)
 #define LVDCR0_LVEN			(1 << 1)
 #define LVDCR0_LVRES			(1 << 0)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/sti/sti_vtg.c linux-libre-4.4.107-gnu/drivers/gpu/drm/sti/sti_vtg.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/sti/sti_vtg.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/sti/sti_vtg.c	2017-12-20 04:05:01.000000000 -0500
@@ -346,6 +346,10 @@ static int vtg_probe(struct platform_dev
 		return -ENOMEM;
 	}
 	vtg->regs = devm_ioremap_nocache(dev, res->start, resource_size(res));
+	if (!vtg->regs) {
+		DRM_ERROR("failed to remap I/O memory\n");
+		return -ENOMEM;
+	}
 
 	np = of_parse_phandle(pdev->dev.of_node, "st,slave", 0);
 	if (np) {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/ttm/ttm_bo.c linux-libre-4.4.107-gnu/drivers/gpu/drm/ttm/ttm_bo.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/ttm/ttm_bo.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/ttm/ttm_bo.c	2017-12-20 04:05:01.000000000 -0500
@@ -1004,9 +1004,9 @@ out_unlock:
 	return ret;
 }
 
-static bool ttm_bo_mem_compat(struct ttm_placement *placement,
-			      struct ttm_mem_reg *mem,
-			      uint32_t *new_flags)
+bool ttm_bo_mem_compat(struct ttm_placement *placement,
+		       struct ttm_mem_reg *mem,
+		       uint32_t *new_flags)
 {
 	int i;
 
@@ -1038,6 +1038,7 @@ static bool ttm_bo_mem_compat(struct ttm
 
 	return false;
 }
+EXPORT_SYMBOL(ttm_bo_mem_compat);
 
 int ttm_bo_validate(struct ttm_buffer_object *bo,
 			struct ttm_placement *placement,
@@ -1620,7 +1621,6 @@ static int ttm_bo_swapout(struct ttm_mem
 	struct ttm_buffer_object *bo;
 	int ret = -EBUSY;
 	int put_count;
-	uint32_t swap_placement = (TTM_PL_FLAG_CACHED | TTM_PL_FLAG_SYSTEM);
 
 	spin_lock(&glob->lru_lock);
 	list_for_each_entry(bo, &glob->swap_lru, swap) {
@@ -1656,7 +1656,8 @@ static int ttm_bo_swapout(struct ttm_mem
 	if (unlikely(ret != 0))
 		goto out;
 
-	if ((bo->mem.placement & swap_placement) != swap_placement) {
+	if (bo->mem.mem_type != TTM_PL_SYSTEM ||
+	    bo->ttm->caching_state != tt_cached) {
 		struct ttm_mem_reg evict_mem;
 
 		evict_mem = bo->mem;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/ttm/ttm_bo_vm.c linux-libre-4.4.107-gnu/drivers/gpu/drm/ttm/ttm_bo_vm.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/ttm/ttm_bo_vm.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/ttm/ttm_bo_vm.c	2017-12-20 04:05:01.000000000 -0500
@@ -66,8 +66,11 @@ static int ttm_bo_vm_fault_idle(struct t
 		if (vmf->flags & FAULT_FLAG_RETRY_NOWAIT)
 			goto out_unlock;
 
+		ttm_bo_reference(bo);
 		up_read(&vma->vm_mm->mmap_sem);
 		(void) ttm_bo_wait(bo, false, true, false);
+		ttm_bo_unreserve(bo);
+		ttm_bo_unref(&bo);
 		goto out_unlock;
 	}
 
@@ -114,8 +117,10 @@ static int ttm_bo_vm_fault(struct vm_are
 
 		if (vmf->flags & FAULT_FLAG_ALLOW_RETRY) {
 			if (!(vmf->flags & FAULT_FLAG_RETRY_NOWAIT)) {
+				ttm_bo_reference(bo);
 				up_read(&vma->vm_mm->mmap_sem);
 				(void) ttm_bo_wait_unreserved(bo);
+				ttm_bo_unref(&bo);
 			}
 
 			return VM_FAULT_RETRY;
@@ -160,6 +165,13 @@ static int ttm_bo_vm_fault(struct vm_are
 	ret = ttm_bo_vm_fault_idle(bo, vma, vmf);
 	if (unlikely(ret != 0)) {
 		retval = ret;
+
+		if (retval == VM_FAULT_RETRY &&
+		    !(vmf->flags & FAULT_FLAG_RETRY_NOWAIT)) {
+			/* The BO has already been unreserved. */
+			return retval;
+		}
+
 		goto out_unlock;
 	}
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/ttm/ttm_object.c linux-libre-4.4.107-gnu/drivers/gpu/drm/ttm/ttm_object.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/ttm/ttm_object.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/ttm/ttm_object.c	2017-12-20 04:05:01.000000000 -0500
@@ -179,7 +179,7 @@ int ttm_base_object_init(struct ttm_obje
 	if (unlikely(ret != 0))
 		goto out_err0;
 
-	ret = ttm_ref_object_add(tfile, base, TTM_REF_USAGE, NULL);
+	ret = ttm_ref_object_add(tfile, base, TTM_REF_USAGE, NULL, false);
 	if (unlikely(ret != 0))
 		goto out_err1;
 
@@ -318,7 +318,8 @@ EXPORT_SYMBOL(ttm_ref_object_exists);
 
 int ttm_ref_object_add(struct ttm_object_file *tfile,
 		       struct ttm_base_object *base,
-		       enum ttm_ref_type ref_type, bool *existed)
+		       enum ttm_ref_type ref_type, bool *existed,
+		       bool require_existed)
 {
 	struct drm_open_hash *ht = &tfile->ref_hash[ref_type];
 	struct ttm_ref_object *ref;
@@ -345,6 +346,9 @@ int ttm_ref_object_add(struct ttm_object
 		}
 
 		rcu_read_unlock();
+		if (require_existed)
+			return -EPERM;
+
 		ret = ttm_mem_global_alloc(mem_glob, sizeof(*ref),
 					   false, false);
 		if (unlikely(ret != 0))
@@ -635,7 +639,7 @@ int ttm_prime_fd_to_handle(struct ttm_ob
 	prime = (struct ttm_prime_object *) dma_buf->priv;
 	base = &prime->base;
 	*handle = base->hash.key;
-	ret = ttm_ref_object_add(tfile, base, TTM_REF_USAGE, NULL);
+	ret = ttm_ref_object_add(tfile, base, TTM_REF_USAGE, NULL, false);
 
 	dma_buf_put(dma_buf);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/ttm/ttm_page_alloc.c linux-libre-4.4.107-gnu/drivers/gpu/drm/ttm/ttm_page_alloc.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/ttm/ttm_page_alloc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/ttm/ttm_page_alloc.c	2017-12-20 04:05:01.000000000 -0500
@@ -612,7 +612,7 @@ static void ttm_page_pool_fill_locked(st
 		} else {
 			pr_err("Failed to fill pool (%p)\n", pool);
 			/* If we have any pages left put them to the pool. */
-			list_for_each_entry(p, &pool->list, lru) {
+			list_for_each_entry(p, &new_pages, lru) {
 				++cpages;
 			}
 			list_splice(&new_pages, &pool->list);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/udl/udl_fb.c linux-libre-4.4.107-gnu/drivers/gpu/drm/udl/udl_fb.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/udl/udl_fb.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/udl/udl_fb.c	2017-12-20 04:05:01.000000000 -0500
@@ -539,7 +539,7 @@ static int udlfb_create(struct drm_fb_he
 out_destroy_fbi:
 	drm_fb_helper_release_fbi(helper);
 out_gfree:
-	drm_gem_object_unreference(&ufbdev->ufb.obj->base);
+	drm_gem_object_unreference_unlocked(&ufbdev->ufb.obj->base);
 out:
 	return ret;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/udl/udl_gem.c linux-libre-4.4.107-gnu/drivers/gpu/drm/udl/udl_gem.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/udl/udl_gem.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/udl/udl_gem.c	2017-12-20 04:05:01.000000000 -0500
@@ -52,7 +52,7 @@ udl_gem_create(struct drm_file *file,
 		return ret;
 	}
 
-	drm_gem_object_unreference(&obj->base);
+	drm_gem_object_unreference_unlocked(&obj->base);
 	*handle_p = handle;
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/virtio/virtgpu_fb.c linux-libre-4.4.107-gnu/drivers/gpu/drm/virtio/virtgpu_fb.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/virtio/virtgpu_fb.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/virtio/virtgpu_fb.c	2017-12-20 04:05:01.000000000 -0500
@@ -338,7 +338,7 @@ static int virtio_gpufb_create(struct dr
 	info->fbops = &virtio_gpufb_ops;
 	info->pixmap.flags = FB_PIXMAP_SYSTEM;
 
-	info->screen_base = obj->vmap;
+	info->screen_buffer = obj->vmap;
 	info->screen_size = obj->gem_base.size;
 	drm_fb_helper_fill_fix(info, fb->pitches[0], fb->depth);
 	drm_fb_helper_fill_var(info, &vfbdev->helper,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/virtio/virtgpu_object.c linux-libre-4.4.107-gnu/drivers/gpu/drm/virtio/virtgpu_object.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/virtio/virtgpu_object.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/virtio/virtgpu_object.c	2017-12-20 04:05:01.000000000 -0500
@@ -81,8 +81,10 @@ int virtio_gpu_object_create(struct virt
 		return -ENOMEM;
 	size = roundup(size, PAGE_SIZE);
 	ret = drm_gem_object_init(vgdev->ddev, &bo->gem_base, size);
-	if (ret != 0)
+	if (ret != 0) {
+		kfree(bo);
 		return ret;
+	}
 	bo->dumb = false;
 	virtio_gpu_init_ttm_placement(bo, pinned);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_cmdbuf.c linux-libre-4.4.107-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_cmdbuf.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_cmdbuf.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_cmdbuf.c	2017-12-20 04:05:01.000000000 -0500
@@ -247,7 +247,7 @@ static void __vmw_cmdbuf_header_free(str
 {
 	struct vmw_cmdbuf_man *man = header->man;
 
-	BUG_ON(!spin_is_locked(&man->lock));
+	lockdep_assert_held_once(&man->lock);
 
 	if (header->inline_space) {
 		vmw_cmdbuf_header_inline_free(header);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_cmdbuf_res.c linux-libre-4.4.107-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_cmdbuf_res.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_cmdbuf_res.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_cmdbuf_res.c	2017-12-20 04:05:01.000000000 -0500
@@ -321,6 +321,7 @@ void vmw_cmdbuf_res_man_destroy(struct v
 	list_for_each_entry_safe(entry, next, &man->list, head)
 		vmw_cmdbuf_res_free(man, entry);
 
+	drm_ht_remove(&man->resources);
 	kfree(man);
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_dmabuf.c linux-libre-4.4.107-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_dmabuf.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_dmabuf.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_dmabuf.c	2017-12-20 04:05:01.000000000 -0500
@@ -49,6 +49,7 @@ int vmw_dmabuf_pin_in_placement(struct v
 {
 	struct ttm_buffer_object *bo = &buf->base;
 	int ret;
+	uint32_t new_flags;
 
 	ret = ttm_write_lock(&dev_priv->reservation_sem, interruptible);
 	if (unlikely(ret != 0))
@@ -60,7 +61,12 @@ int vmw_dmabuf_pin_in_placement(struct v
 	if (unlikely(ret != 0))
 		goto err;
 
-	ret = ttm_bo_validate(bo, placement, interruptible, false);
+	if (buf->pin_count > 0)
+		ret = ttm_bo_mem_compat(placement, &bo->mem,
+					&new_flags) == true ? 0 : -EINVAL;
+	else
+		ret = ttm_bo_validate(bo, placement, interruptible, false);
+
 	if (!ret)
 		vmw_bo_pin_reserved(buf, true);
 
@@ -91,6 +97,7 @@ int vmw_dmabuf_pin_in_vram_or_gmr(struct
 {
 	struct ttm_buffer_object *bo = &buf->base;
 	int ret;
+	uint32_t new_flags;
 
 	ret = ttm_write_lock(&dev_priv->reservation_sem, interruptible);
 	if (unlikely(ret != 0))
@@ -102,6 +109,12 @@ int vmw_dmabuf_pin_in_vram_or_gmr(struct
 	if (unlikely(ret != 0))
 		goto err;
 
+	if (buf->pin_count > 0) {
+		ret = ttm_bo_mem_compat(&vmw_vram_gmr_placement, &bo->mem,
+					&new_flags) == true ? 0 : -EINVAL;
+		goto out_unreserve;
+	}
+
 	ret = ttm_bo_validate(bo, &vmw_vram_gmr_placement, interruptible,
 			      false);
 	if (likely(ret == 0) || ret == -ERESTARTSYS)
@@ -161,6 +174,7 @@ int vmw_dmabuf_pin_in_start_of_vram(stru
 	struct ttm_placement placement;
 	struct ttm_place place;
 	int ret = 0;
+	uint32_t new_flags;
 
 	place = vmw_vram_placement.placement[0];
 	place.lpfn = bo->num_pages;
@@ -185,10 +199,15 @@ int vmw_dmabuf_pin_in_start_of_vram(stru
 	 */
 	if (bo->mem.mem_type == TTM_PL_VRAM &&
 	    bo->mem.start < bo->num_pages &&
-	    bo->mem.start > 0)
+	    bo->mem.start > 0 &&
+	    buf->pin_count == 0)
 		(void) ttm_bo_validate(bo, &vmw_sys_placement, false, false);
 
-	ret = ttm_bo_validate(bo, &placement, interruptible, false);
+	if (buf->pin_count > 0)
+		ret = ttm_bo_mem_compat(&placement, &bo->mem,
+					&new_flags) == true ? 0 : -EINVAL;
+	else
+		ret = ttm_bo_validate(bo, &placement, interruptible, false);
 
 	/* For some reason we didn't end up at the start of vram */
 	WARN_ON(ret == 0 && bo->offset != 0);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c linux-libre-4.4.107-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c	2017-12-20 04:05:01.000000000 -0500
@@ -25,6 +25,7 @@
  *
  **************************************************************************/
 #include <linux/module.h>
+#include <linux/console.h>
 
 #include <drm/drmP.h>
 #include "vmwgfx_drv.h"
@@ -226,6 +227,7 @@ static int vmw_force_iommu;
 static int vmw_restrict_iommu;
 static int vmw_force_coherent;
 static int vmw_restrict_dma_mask;
+static int vmw_assume_16bpp;
 
 static int vmw_probe(struct pci_dev *, const struct pci_device_id *);
 static void vmw_master_init(struct vmw_master *);
@@ -242,6 +244,8 @@ MODULE_PARM_DESC(force_coherent, "Force
 module_param_named(force_coherent, vmw_force_coherent, int, 0600);
 MODULE_PARM_DESC(restrict_dma_mask, "Restrict DMA mask to 44 bits with IOMMU");
 module_param_named(restrict_dma_mask, vmw_restrict_dma_mask, int, 0600);
+MODULE_PARM_DESC(assume_16bpp, "Assume 16-bpp when filtering modes");
+module_param_named(assume_16bpp, vmw_assume_16bpp, int, 0600);
 
 
 static void vmw_print_capabilities(uint32_t capabilities)
@@ -651,6 +655,8 @@ static int vmw_driver_load(struct drm_de
 	dev_priv->vram_start = pci_resource_start(dev->pdev, 1);
 	dev_priv->mmio_start = pci_resource_start(dev->pdev, 2);
 
+	dev_priv->assume_16bpp = !!vmw_assume_16bpp;
+
 	dev_priv->enable_fb = enable_fbdev;
 
 	vmw_write(dev_priv, SVGA_REG_ID, SVGA_ID_2);
@@ -697,6 +703,13 @@ static int vmw_driver_load(struct drm_de
 			vmw_read(dev_priv,
 				 SVGA_REG_SUGGESTED_GBOBJECT_MEM_SIZE_KB);
 
+		/*
+		 * Workaround for low memory 2D VMs to compensate for the
+		 * allocation taken by fbdev
+		 */
+		if (!(dev_priv->capabilities & SVGA_CAP_3D))
+			mem_size *= 3;
+
 		dev_priv->max_mob_pages = mem_size * 1024 / PAGE_SIZE;
 		dev_priv->prim_bb_mem =
 			vmw_read(dev_priv,
@@ -1538,6 +1551,12 @@ static int vmw_probe(struct pci_dev *pde
 static int __init vmwgfx_init(void)
 {
 	int ret;
+
+#ifdef CONFIG_VGA_CONSOLE
+	if (vgacon_text_force())
+		return -EINVAL;
+#endif
+
 	ret = drm_pci_init(&driver, &vmw_pci_driver);
 	if (ret)
 		DRM_ERROR("Failed initializing DRM.\n");
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h linux-libre-4.4.107-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
--- linux-libre-4.4-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h	2017-12-20 04:05:01.000000000 -0500
@@ -387,6 +387,7 @@ struct vmw_private {
 	spinlock_t hw_lock;
 	spinlock_t cap_lock;
 	bool has_dx;
+	bool assume_16bpp;
 
 	/*
 	 * VGA registers.
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c linux-libre-4.4.107-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c	2017-12-20 04:05:01.000000000 -0500
@@ -471,7 +471,7 @@ static int vmw_cmd_invalid(struct vmw_pr
 			   struct vmw_sw_context *sw_context,
 			   SVGA3dCmdHeader *header)
 {
-	return capable(CAP_SYS_ADMIN) ? : -EINVAL;
+	return -EINVAL;
 }
 
 static int vmw_cmd_ok(struct vmw_private *dev_priv,
@@ -3273,19 +3273,19 @@ static const struct vmw_cmd_entry vmw_cm
 		    &vmw_cmd_dx_cid_check, true, false, true),
 	VMW_CMD_DEF(SVGA_3D_CMD_DX_DEFINE_QUERY, &vmw_cmd_dx_define_query,
 		    true, false, true),
-	VMW_CMD_DEF(SVGA_3D_CMD_DX_DESTROY_QUERY, &vmw_cmd_ok,
+	VMW_CMD_DEF(SVGA_3D_CMD_DX_DESTROY_QUERY, &vmw_cmd_dx_cid_check,
 		    true, false, true),
 	VMW_CMD_DEF(SVGA_3D_CMD_DX_BIND_QUERY, &vmw_cmd_dx_bind_query,
 		    true, false, true),
 	VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_QUERY_OFFSET,
-		    &vmw_cmd_ok, true, false, true),
-	VMW_CMD_DEF(SVGA_3D_CMD_DX_BEGIN_QUERY, &vmw_cmd_ok,
+		    &vmw_cmd_dx_cid_check, true, false, true),
+	VMW_CMD_DEF(SVGA_3D_CMD_DX_BEGIN_QUERY, &vmw_cmd_dx_cid_check,
 		    true, false, true),
-	VMW_CMD_DEF(SVGA_3D_CMD_DX_END_QUERY, &vmw_cmd_ok,
+	VMW_CMD_DEF(SVGA_3D_CMD_DX_END_QUERY, &vmw_cmd_dx_cid_check,
 		    true, false, true),
 	VMW_CMD_DEF(SVGA_3D_CMD_DX_READBACK_QUERY, &vmw_cmd_invalid,
 		    true, false, true),
-	VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_PREDICATION, &vmw_cmd_invalid,
+	VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_PREDICATION, &vmw_cmd_dx_cid_check,
 		    true, false, true),
 	VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_VIEWPORTS, &vmw_cmd_dx_cid_check,
 		    true, false, true),
@@ -3830,14 +3830,14 @@ static void *vmw_execbuf_cmdbuf(struct v
 	int ret;
 
 	*header = NULL;
-	if (!dev_priv->cman || kernel_commands)
-		return kernel_commands;
-
 	if (command_size > SVGA_CB_MAX_SIZE) {
 		DRM_ERROR("Command buffer is too large.\n");
 		return ERR_PTR(-EINVAL);
 	}
 
+	if (!dev_priv->cman || kernel_commands)
+		return kernel_commands;
+
 	/* If possible, add a little space for fencing. */
 	cmdbuf_size = command_size + 512;
 	cmdbuf_size = min_t(size_t, cmdbuf_size, SVGA_CB_MAX_SIZE);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_fb.c linux-libre-4.4.107-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_fb.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_fb.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_fb.c	2017-12-20 04:05:01.000000000 -0500
@@ -517,28 +517,6 @@ static int vmw_fb_kms_framebuffer(struct
 
 	par->set_fb = &vfb->base;
 
-	if (!par->bo_ptr) {
-		/*
-		 * Pin before mapping. Since we don't know in what placement
-		 * to pin, call into KMS to do it for us.
-		 */
-		ret = vfb->pin(vfb);
-		if (ret) {
-			DRM_ERROR("Could not pin the fbdev framebuffer.\n");
-			return ret;
-		}
-
-		ret = ttm_bo_kmap(&par->vmw_bo->base, 0,
-				  par->vmw_bo->base.num_pages, &par->map);
-		if (ret) {
-			vfb->unpin(vfb);
-			DRM_ERROR("Could not map the fbdev framebuffer.\n");
-			return ret;
-		}
-
-		par->bo_ptr = ttm_kmap_obj_virtual(&par->map, &par->bo_iowrite);
-	}
-
 	return 0;
 }
 
@@ -573,9 +551,9 @@ static int vmw_fb_set_par(struct fb_info
 		mode = old_mode;
 		old_mode = NULL;
 	} else if (!vmw_kms_validate_mode_vram(vmw_priv,
-					       mode->hdisplay *
-					       (var->bits_per_pixel + 7) / 8,
-					       mode->vdisplay)) {
+					mode->hdisplay *
+					DIV_ROUND_UP(var->bits_per_pixel, 8),
+					mode->vdisplay)) {
 		drm_mode_destroy(vmw_priv->dev, mode);
 		return -EINVAL;
 	}
@@ -601,6 +579,31 @@ static int vmw_fb_set_par(struct fb_info
 	if (ret)
 		goto out_unlock;
 
+	if (!par->bo_ptr) {
+		struct vmw_framebuffer *vfb = vmw_framebuffer_to_vfb(set.fb);
+
+		/*
+		 * Pin before mapping. Since we don't know in what placement
+		 * to pin, call into KMS to do it for us.
+		 */
+		ret = vfb->pin(vfb);
+		if (ret) {
+			DRM_ERROR("Could not pin the fbdev framebuffer.\n");
+			goto out_unlock;
+		}
+
+		ret = ttm_bo_kmap(&par->vmw_bo->base, 0,
+				  par->vmw_bo->base.num_pages, &par->map);
+		if (ret) {
+			vfb->unpin(vfb);
+			DRM_ERROR("Could not map the fbdev framebuffer.\n");
+			goto out_unlock;
+		}
+
+		par->bo_ptr = ttm_kmap_obj_virtual(&par->map, &par->bo_iowrite);
+	}
+
+
 	vmw_fb_dirty_mark(par, par->fb_x, par->fb_y,
 			  par->set_fb->width, par->set_fb->height);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c linux-libre-4.4.107-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c	2017-12-20 04:05:01.000000000 -0500
@@ -539,7 +539,7 @@ int vmw_fence_create(struct vmw_fence_ma
 		     struct vmw_fence_obj **p_fence)
 {
 	struct vmw_fence_obj *fence;
-	int ret;
+ 	int ret;
 
 	fence = kzalloc(sizeof(*fence), GFP_KERNEL);
 	if (unlikely(fence == NULL))
@@ -702,6 +702,41 @@ void vmw_fence_fifo_up(struct vmw_fence_
 }
 
 
+/**
+ * vmw_fence_obj_lookup - Look up a user-space fence object
+ *
+ * @tfile: A struct ttm_object_file identifying the caller.
+ * @handle: A handle identifying the fence object.
+ * @return: A struct vmw_user_fence base ttm object on success or
+ * an error pointer on failure.
+ *
+ * The fence object is looked up and type-checked. The caller needs
+ * to have opened the fence object first, but since that happens on
+ * creation and fence objects aren't shareable, that's not an
+ * issue currently.
+ */
+static struct ttm_base_object *
+vmw_fence_obj_lookup(struct ttm_object_file *tfile, u32 handle)
+{
+	struct ttm_base_object *base = ttm_base_object_lookup(tfile, handle);
+
+	if (!base) {
+		pr_err("Invalid fence object handle 0x%08lx.\n",
+		       (unsigned long)handle);
+		return ERR_PTR(-EINVAL);
+	}
+
+	if (base->refcount_release != vmw_user_fence_base_release) {
+		pr_err("Invalid fence object handle 0x%08lx.\n",
+		       (unsigned long)handle);
+		ttm_base_object_unref(&base);
+		return ERR_PTR(-EINVAL);
+	}
+
+	return base;
+}
+
+
 int vmw_fence_obj_wait_ioctl(struct drm_device *dev, void *data,
 			     struct drm_file *file_priv)
 {
@@ -727,13 +762,9 @@ int vmw_fence_obj_wait_ioctl(struct drm_
 		arg->kernel_cookie = jiffies + wait_timeout;
 	}
 
-	base = ttm_base_object_lookup(tfile, arg->handle);
-	if (unlikely(base == NULL)) {
-		printk(KERN_ERR "Wait invalid fence object handle "
-		       "0x%08lx.\n",
-		       (unsigned long)arg->handle);
-		return -EINVAL;
-	}
+	base = vmw_fence_obj_lookup(tfile, arg->handle);
+	if (IS_ERR(base))
+		return PTR_ERR(base);
 
 	fence = &(container_of(base, struct vmw_user_fence, base)->fence);
 
@@ -772,13 +803,9 @@ int vmw_fence_obj_signaled_ioctl(struct
 	struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
 	struct vmw_private *dev_priv = vmw_priv(dev);
 
-	base = ttm_base_object_lookup(tfile, arg->handle);
-	if (unlikely(base == NULL)) {
-		printk(KERN_ERR "Fence signaled invalid fence object handle "
-		       "0x%08lx.\n",
-		       (unsigned long)arg->handle);
-		return -EINVAL;
-	}
+	base = vmw_fence_obj_lookup(tfile, arg->handle);
+	if (IS_ERR(base))
+		return PTR_ERR(base);
 
 	fence = &(container_of(base, struct vmw_user_fence, base)->fence);
 	fman = fman_from_fence(fence);
@@ -1093,6 +1120,7 @@ int vmw_fence_event_ioctl(struct drm_dev
 		(struct drm_vmw_fence_event_arg *) data;
 	struct vmw_fence_obj *fence = NULL;
 	struct vmw_fpriv *vmw_fp = vmw_fpriv(file_priv);
+	struct ttm_object_file *tfile = vmw_fp->tfile;
 	struct drm_vmw_fence_rep __user *user_fence_rep =
 		(struct drm_vmw_fence_rep __user *)(unsigned long)
 		arg->fence_rep;
@@ -1106,24 +1134,18 @@ int vmw_fence_event_ioctl(struct drm_dev
 	 */
 	if (arg->handle) {
 		struct ttm_base_object *base =
-			ttm_base_object_lookup_for_ref(dev_priv->tdev,
-						       arg->handle);
+			vmw_fence_obj_lookup(tfile, arg->handle);
+
+		if (IS_ERR(base))
+			return PTR_ERR(base);
 
-		if (unlikely(base == NULL)) {
-			DRM_ERROR("Fence event invalid fence object handle "
-				  "0x%08lx.\n",
-				  (unsigned long)arg->handle);
-			return -EINVAL;
-		}
 		fence = &(container_of(base, struct vmw_user_fence,
 				       base)->fence);
 		(void) vmw_fence_obj_reference(fence);
 
 		if (user_fence_rep != NULL) {
-			bool existed;
-
 			ret = ttm_ref_object_add(vmw_fp->tfile, base,
-						 TTM_REF_USAGE, &existed);
+						 TTM_REF_USAGE, NULL, false);
 			if (unlikely(ret != 0)) {
 				DRM_ERROR("Failed to reference a fence "
 					  "object.\n");
@@ -1166,8 +1188,7 @@ int vmw_fence_event_ioctl(struct drm_dev
 	return 0;
 out_no_create:
 	if (user_fence_rep != NULL)
-		ttm_ref_object_base_unref(vmw_fpriv(file_priv)->tfile,
-					  handle, TTM_REF_USAGE);
+		ttm_ref_object_base_unref(tfile, handle, TTM_REF_USAGE);
 out_no_ref_obj:
 	vmw_fence_obj_unreference(&fence);
 	return ret;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c linux-libre-4.4.107-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c	2017-12-20 04:05:01.000000000 -0500
@@ -368,6 +368,8 @@ static void *vmw_local_fifo_reserve(stru
 				return fifo_state->static_buffer;
 			else {
 				fifo_state->dynamic_buffer = vmalloc(bytes);
+				if (!fifo_state->dynamic_buffer)
+					goto out_err;
 				return fifo_state->dynamic_buffer;
 			}
 		}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c linux-libre-4.4.107-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c	2017-12-20 04:05:01.000000000 -0500
@@ -114,8 +114,6 @@ int vmw_getparam_ioctl(struct drm_device
 		param->value = dev_priv->has_dx;
 		break;
 	default:
-		DRM_ERROR("Illegal vmwgfx get param request: %d\n",
-			  param->param);
 		return -EINVAL;
 	}
 
@@ -186,7 +184,7 @@ int vmw_get_cap_3d_ioctl(struct drm_devi
 	bool gb_objects = !!(dev_priv->capabilities & SVGA_CAP_GBOBJECTS);
 	struct vmw_fpriv *vmw_fp = vmw_fpriv(file_priv);
 
-	if (unlikely(arg->pad64 != 0)) {
+	if (unlikely(arg->pad64 != 0 || arg->max_size == 0)) {
 		DRM_ERROR("Illegal GET_3D_CAP argument.\n");
 		return -EINVAL;
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c linux-libre-4.4.107-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c	2017-12-20 04:05:01.000000000 -0500
@@ -763,21 +763,25 @@ static int vmw_create_dmabuf_proxy(struc
 	uint32_t format;
 	struct drm_vmw_size content_base_size;
 	struct vmw_resource *res;
+	unsigned int bytes_pp;
 	int ret;
 
 	switch (mode_cmd->depth) {
 	case 32:
 	case 24:
 		format = SVGA3D_X8R8G8B8;
+		bytes_pp = 4;
 		break;
 
 	case 16:
 	case 15:
 		format = SVGA3D_R5G6B5;
+		bytes_pp = 2;
 		break;
 
 	case 8:
 		format = SVGA3D_P8;
+		bytes_pp = 1;
 		break;
 
 	default:
@@ -785,7 +789,7 @@ static int vmw_create_dmabuf_proxy(struc
 		return -EINVAL;
 	}
 
-	content_base_size.width  = mode_cmd->width;
+	content_base_size.width  = mode_cmd->pitch / bytes_pp;
 	content_base_size.height = mode_cmd->height;
 	content_base_size.depth  = 1;
 
@@ -1534,14 +1538,10 @@ int vmw_du_connector_fill_modes(struct d
 		DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC)
 	};
 	int i;
-	u32 assumed_bpp = 2;
+	u32 assumed_bpp = 4;
 
-	/*
-	 * If using screen objects, then assume 32-bpp because that's what the
-	 * SVGA device is assuming
-	 */
-	if (dev_priv->active_display_unit == vmw_du_screen_object)
-		assumed_bpp = 4;
+	if (dev_priv->assume_16bpp)
+		assumed_bpp = 2;
 
 	if (dev_priv->active_display_unit == vmw_du_screen_target) {
 		max_width  = min(max_width,  dev_priv->stdu_max_width);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c linux-libre-4.4.107-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c	2017-12-20 04:05:01.000000000 -0500
@@ -591,7 +591,7 @@ static int vmw_user_dmabuf_synccpu_grab(
 		return ret;
 
 	ret = ttm_ref_object_add(tfile, &user_bo->prime.base,
-				 TTM_REF_SYNCCPU_WRITE, &existed);
+				 TTM_REF_SYNCCPU_WRITE, &existed, false);
 	if (ret != 0 || existed)
 		ttm_bo_synccpu_write_release(&user_bo->dma.base);
 
@@ -775,7 +775,7 @@ int vmw_user_dmabuf_reference(struct ttm
 
 	*handle = user_bo->prime.base.hash.key;
 	return ttm_ref_object_add(tfile, &user_bo->prime.base,
-				  TTM_REF_USAGE, NULL);
+				  TTM_REF_USAGE, NULL, false);
 }
 
 /*
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c linux-libre-4.4.107-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c
--- linux-libre-4.4-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c	2017-12-20 04:05:01.000000000 -0500
@@ -715,11 +715,14 @@ int vmw_surface_define_ioctl(struct drm_
 			128;
 
 	num_sizes = 0;
-	for (i = 0; i < DRM_VMW_MAX_SURFACE_FACES; ++i)
+	for (i = 0; i < DRM_VMW_MAX_SURFACE_FACES; ++i) {
+		if (req->mip_levels[i] > DRM_VMW_MAX_MIP_LEVELS)
+			return -EINVAL;
 		num_sizes += req->mip_levels[i];
+	}
 
-	if (num_sizes > DRM_VMW_MAX_SURFACE_FACES *
-	    DRM_VMW_MAX_MIP_LEVELS)
+	if (num_sizes > DRM_VMW_MAX_SURFACE_FACES * DRM_VMW_MAX_MIP_LEVELS ||
+	    num_sizes == 0)
 		return -EINVAL;
 
 	size = vmw_user_surface_size + 128 +
@@ -904,17 +907,16 @@ vmw_surface_handle_reference(struct vmw_
 	uint32_t handle;
 	struct ttm_base_object *base;
 	int ret;
+	bool require_exist = false;
 
 	if (handle_type == DRM_VMW_HANDLE_PRIME) {
 		ret = ttm_prime_fd_to_handle(tfile, u_handle, &handle);
 		if (unlikely(ret != 0))
 			return ret;
 	} else {
-		if (unlikely(drm_is_render_client(file_priv))) {
-			DRM_ERROR("Render client refused legacy "
-				  "surface reference.\n");
-			return -EACCES;
-		}
+		if (unlikely(drm_is_render_client(file_priv)))
+			require_exist = true;
+
 		if (ACCESS_ONCE(vmw_fpriv(file_priv)->locked_master)) {
 			DRM_ERROR("Locked master refused legacy "
 				  "surface reference.\n");
@@ -942,17 +944,14 @@ vmw_surface_handle_reference(struct vmw_
 
 		/*
 		 * Make sure the surface creator has the same
-		 * authenticating master.
+		 * authenticating master, or is already registered with us.
 		 */
 		if (drm_is_primary_client(file_priv) &&
-		    user_srf->master != file_priv->master) {
-			DRM_ERROR("Trying to reference surface outside of"
-				  " master domain.\n");
-			ret = -EACCES;
-			goto out_bad_resource;
-		}
+		    user_srf->master != file_priv->master)
+			require_exist = true;
 
-		ret = ttm_ref_object_add(tfile, base, TTM_REF_USAGE, NULL);
+		ret = ttm_ref_object_add(tfile, base, TTM_REF_USAGE, NULL,
+					 require_exist);
 		if (unlikely(ret != 0)) {
 			DRM_ERROR("Could not add a reference to a surface.\n");
 			goto out_bad_resource;
@@ -1289,11 +1288,14 @@ int vmw_gb_surface_define_ioctl(struct d
 	struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
 	int ret;
 	uint32_t size;
-	uint32_t backup_handle;
+	uint32_t backup_handle = 0;
 
 	if (req->multisample_count != 0)
 		return -EINVAL;
 
+	if (req->mip_levels > DRM_VMW_MAX_MIP_LEVELS)
+		return -EINVAL;
+
 	if (unlikely(vmw_user_surface_size == 0))
 		vmw_user_surface_size = ttm_round_pot(sizeof(*user_srf)) +
 			128;
@@ -1329,12 +1331,16 @@ int vmw_gb_surface_define_ioctl(struct d
 		ret = vmw_user_dmabuf_lookup(tfile, req->buffer_handle,
 					     &res->backup,
 					     &user_srf->backup_base);
-		if (ret == 0 && res->backup->base.num_pages * PAGE_SIZE <
-		    res->backup_size) {
-			DRM_ERROR("Surface backup buffer is too small.\n");
-			vmw_dmabuf_unreference(&res->backup);
-			ret = -EINVAL;
-			goto out_unlock;
+		if (ret == 0) {
+			if (res->backup->base.num_pages * PAGE_SIZE <
+			    res->backup_size) {
+				DRM_ERROR("Surface backup buffer is too small.\n");
+				vmw_dmabuf_unreference(&res->backup);
+				ret = -EINVAL;
+				goto out_unlock;
+			} else {
+				backup_handle = req->buffer_handle;
+			}
 		}
 	} else if (req->drm_surface_flags & drm_vmw_surface_flag_create_buffer)
 		ret = vmw_user_dmabuf_alloc(dev_priv, tfile,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/gpu/ipu-v3/ipu-common.c linux-libre-4.4.107-gnu/drivers/gpu/ipu-v3/ipu-common.c
--- linux-libre-4.4-gnu/drivers/gpu/ipu-v3/ipu-common.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/gpu/ipu-v3/ipu-common.c	2017-12-20 04:05:01.000000000 -0500
@@ -997,7 +997,7 @@ struct ipu_platform_reg {
 };
 
 /* These must be in the order of the corresponding device tree port nodes */
-static const struct ipu_platform_reg client_reg[] = {
+static struct ipu_platform_reg client_reg[] = {
 	{
 		.pdata = {
 			.csi = 0,
@@ -1048,8 +1048,19 @@ static int ipu_add_client_devices(struct
 	mutex_unlock(&ipu_client_id_mutex);
 
 	for (i = 0; i < ARRAY_SIZE(client_reg); i++) {
-		const struct ipu_platform_reg *reg = &client_reg[i];
+		struct ipu_platform_reg *reg = &client_reg[i];
 		struct platform_device *pdev;
+		struct device_node *of_node;
+
+		/* Associate subdevice with the corresponding port node */
+		of_node = of_graph_get_port_by_id(dev->of_node, i);
+		if (!of_node) {
+			dev_info(dev,
+				 "no port@%d node in %s, not using %s%d\n",
+				 i, dev->of_node->full_name,
+				 (i / 2) ? "DI" : "CSI", i % 2);
+			continue;
+		}
 
 		pdev = platform_device_alloc(reg->name, id++);
 		if (!pdev) {
@@ -1059,15 +1070,7 @@ static int ipu_add_client_devices(struct
 
 		pdev->dev.parent = dev;
 
-		/* Associate subdevice with the corresponding port node */
-		pdev->dev.of_node = of_graph_get_port_by_id(dev->of_node, i);
-		if (!pdev->dev.of_node) {
-			dev_err(dev, "missing port@%d node in %s\n", i,
-				dev->of_node->full_name);
-			ret = -ENODEV;
-			goto err_register;
-		}
-
+		reg->pdata.of_node = of_node;
 		ret = platform_device_add_data(pdev, &reg->pdata,
 					       sizeof(reg->pdata));
 		if (!ret)
@@ -1076,6 +1079,12 @@ static int ipu_add_client_devices(struct
 			platform_device_put(pdev);
 			goto err_register;
 		}
+
+		/*
+		 * Set of_node only after calling platform_device_add. Otherwise
+		 * the platform:imx-ipuv3-crtc modalias won't be used.
+		 */
+		pdev->dev.of_node = of_node;
 	}
 
 	return 0;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/hid/hid-chicony.c linux-libre-4.4.107-gnu/drivers/hid/hid-chicony.c
--- linux-libre-4.4-gnu/drivers/hid/hid-chicony.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/hid/hid-chicony.c	2017-12-20 04:05:01.000000000 -0500
@@ -86,6 +86,7 @@ static const struct hid_device_id ch_dev
 	{ HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS2) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_AK1D) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_ACER_SWITCH12) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_JESS, USB_DEVICE_ID_JESS_ZEN_AIO_KBD) },
 	{ }
 };
 MODULE_DEVICE_TABLE(hid, ch_devices);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/hid/hid-core.c linux-libre-4.4.107-gnu/drivers/hid/hid-core.c
--- linux-libre-4.4-gnu/drivers/hid/hid-core.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/hid/hid-core.c	2017-12-20 04:05:01.000000000 -0500
@@ -1251,6 +1251,7 @@ static void hid_input_field(struct hid_d
 		/* Ignore report if ErrorRollOver */
 		if (!(field->flags & HID_MAIN_ITEM_VARIABLE) &&
 		    value[n] >= min && value[n] <= max &&
+		    value[n] - min < field->maxusage &&
 		    field->usage[value[n] - min].hid == HID_UP_KEYBOARD + 1)
 			goto exit;
 	}
@@ -1263,11 +1264,13 @@ static void hid_input_field(struct hid_d
 		}
 
 		if (field->value[n] >= min && field->value[n] <= max
+			&& field->value[n] - min < field->maxusage
 			&& field->usage[field->value[n] - min].hid
 			&& search(value, field->value[n], count))
 				hid_process_event(hid, field, &field->usage[field->value[n] - min], 0, interrupt);
 
 		if (value[n] >= min && value[n] <= max
+			&& value[n] - min < field->maxusage
 			&& field->usage[value[n] - min].hid
 			&& search(field->value, value[n], count))
 				hid_process_event(hid, field, &field->usage[value[n] - min], 1, interrupt);
@@ -1864,6 +1867,7 @@ static const struct hid_device_id hid_ha
 	{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A081) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A0C2) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_HUION, USB_DEVICE_ID_HUION_TABLET) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_JESS, USB_DEVICE_ID_JESS_ZEN_AIO_KBD) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_JESS2, USB_DEVICE_ID_JESS2_COLOR_RUMBLE_PAD) },
 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ION, USB_DEVICE_ID_ICADE) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_KENSINGTON, USB_DEVICE_ID_KS_SLIMBLADE) },
@@ -1897,6 +1901,7 @@ static const struct hid_device_id hid_ha
 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_ELITE_KBD) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_CORDLESS_DESKTOP_LX500) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_EXTREME_3D) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_DUAL_ACTION) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WHEEL) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD_CORD) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD) },
@@ -2423,6 +2428,7 @@ static const struct hid_device_id hid_ig
 	{ HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0002) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0003) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0004) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_PETZL, USB_DEVICE_ID_PETZL_HEADLAMP) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_PHILIPS, USB_DEVICE_ID_PHILIPS_IEEE802154_DONGLE) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_POWERCOM, USB_DEVICE_ID_POWERCOM_UPS) },
 #if defined(CONFIG_MOUSE_SYNAPTICS_USB) || defined(CONFIG_MOUSE_SYNAPTICS_USB_MODULE)
@@ -2615,9 +2621,10 @@ int hid_add_device(struct hid_device *hd
 	/*
 	 * Scan generic devices for group information
 	 */
-	if (hid_ignore_special_drivers ||
-	    (!hdev->group &&
-	     !hid_match_id(hdev, hid_have_special_driver))) {
+	if (hid_ignore_special_drivers) {
+		hdev->group = HID_GROUP_GENERIC;
+	} else if (!hdev->group &&
+		   !hid_match_id(hdev, hid_have_special_driver)) {
 		ret = hid_scan_report(hdev);
 		if (ret)
 			hid_warn(hdev, "bad device descriptor (%d)\n", ret);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/hid/hid-corsair.c linux-libre-4.4.107-gnu/drivers/hid/hid-corsair.c
--- linux-libre-4.4-gnu/drivers/hid/hid-corsair.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/hid/hid-corsair.c	2017-12-20 04:05:01.000000000 -0500
@@ -148,26 +148,36 @@ static enum led_brightness k90_backlight
 	struct usb_interface *usbif = to_usb_interface(dev->parent);
 	struct usb_device *usbdev = interface_to_usbdev(usbif);
 	int brightness;
-	char data[8];
+	char *data;
+
+	data = kmalloc(8, GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
 
 	ret = usb_control_msg(usbdev, usb_rcvctrlpipe(usbdev, 0),
 			      K90_REQUEST_STATUS,
 			      USB_DIR_IN | USB_TYPE_VENDOR |
 			      USB_RECIP_DEVICE, 0, 0, data, 8,
 			      USB_CTRL_SET_TIMEOUT);
-	if (ret < 0) {
+	if (ret < 5) {
 		dev_warn(dev, "Failed to get K90 initial state (error %d).\n",
 			 ret);
-		return -EIO;
+		ret = -EIO;
+		goto out;
 	}
 	brightness = data[4];
 	if (brightness < 0 || brightness > 3) {
 		dev_warn(dev,
 			 "Read invalid backlight brightness: %02hhx.\n",
 			 data[4]);
-		return -EIO;
+		ret = -EIO;
+		goto out;
 	}
-	return brightness;
+	ret = brightness;
+out:
+	kfree(data);
+
+	return ret;
 }
 
 static enum led_brightness k90_record_led_get(struct led_classdev *led_cdev)
@@ -253,17 +263,22 @@ static ssize_t k90_show_macro_mode(struc
 	struct usb_interface *usbif = to_usb_interface(dev->parent);
 	struct usb_device *usbdev = interface_to_usbdev(usbif);
 	const char *macro_mode;
-	char data[8];
+	char *data;
+
+	data = kmalloc(2, GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
 
 	ret = usb_control_msg(usbdev, usb_rcvctrlpipe(usbdev, 0),
 			      K90_REQUEST_GET_MODE,
 			      USB_DIR_IN | USB_TYPE_VENDOR |
 			      USB_RECIP_DEVICE, 0, 0, data, 2,
 			      USB_CTRL_SET_TIMEOUT);
-	if (ret < 0) {
+	if (ret < 1) {
 		dev_warn(dev, "Failed to get K90 initial mode (error %d).\n",
 			 ret);
-		return -EIO;
+		ret = -EIO;
+		goto out;
 	}
 
 	switch (data[0]) {
@@ -277,10 +292,15 @@ static ssize_t k90_show_macro_mode(struc
 	default:
 		dev_warn(dev, "K90 in unknown mode: %02hhx.\n",
 			 data[0]);
-		return -EIO;
+		ret = -EIO;
+		goto out;
 	}
 
-	return snprintf(buf, PAGE_SIZE, "%s\n", macro_mode);
+	ret = snprintf(buf, PAGE_SIZE, "%s\n", macro_mode);
+out:
+	kfree(data);
+
+	return ret;
 }
 
 static ssize_t k90_store_macro_mode(struct device *dev,
@@ -320,26 +340,36 @@ static ssize_t k90_show_current_profile(
 	struct usb_interface *usbif = to_usb_interface(dev->parent);
 	struct usb_device *usbdev = interface_to_usbdev(usbif);
 	int current_profile;
-	char data[8];
+	char *data;
+
+	data = kmalloc(8, GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
 
 	ret = usb_control_msg(usbdev, usb_rcvctrlpipe(usbdev, 0),
 			      K90_REQUEST_STATUS,
 			      USB_DIR_IN | USB_TYPE_VENDOR |
 			      USB_RECIP_DEVICE, 0, 0, data, 8,
 			      USB_CTRL_SET_TIMEOUT);
-	if (ret < 0) {
+	if (ret < 8) {
 		dev_warn(dev, "Failed to get K90 initial state (error %d).\n",
 			 ret);
-		return -EIO;
+		ret = -EIO;
+		goto out;
 	}
 	current_profile = data[7];
 	if (current_profile < 1 || current_profile > 3) {
 		dev_warn(dev, "Read invalid current profile: %02hhx.\n",
 			 data[7]);
-		return -EIO;
+		ret = -EIO;
+		goto out;
 	}
 
-	return snprintf(buf, PAGE_SIZE, "%d\n", current_profile);
+	ret = snprintf(buf, PAGE_SIZE, "%d\n", current_profile);
+out:
+	kfree(data);
+
+	return ret;
 }
 
 static ssize_t k90_store_current_profile(struct device *dev,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/hid/hid-cypress.c linux-libre-4.4.107-gnu/drivers/hid/hid-cypress.c
--- linux-libre-4.4-gnu/drivers/hid/hid-cypress.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/hid/hid-cypress.c	2017-12-20 04:05:01.000000000 -0500
@@ -39,6 +39,9 @@ static __u8 *cp_report_fixup(struct hid_
 	if (!(quirks & CP_RDESC_SWAPPED_MIN_MAX))
 		return rdesc;
 
+	if (*rsize < 4)
+		return rdesc;
+
 	for (i = 0; i < *rsize - 4; i++)
 		if (rdesc[i] == 0x29 && rdesc[i + 2] == 0x19) {
 			rdesc[i] = 0x19;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/hid/hid-elo.c linux-libre-4.4.107-gnu/drivers/hid/hid-elo.c
--- linux-libre-4.4-gnu/drivers/hid/hid-elo.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/hid/hid-elo.c	2017-12-20 04:05:01.000000000 -0500
@@ -261,7 +261,7 @@ static void elo_remove(struct hid_device
 	struct elo_priv *priv = hid_get_drvdata(hdev);
 
 	hid_hw_stop(hdev);
-	flush_workqueue(wq);
+	cancel_delayed_work_sync(&priv->work);
 	kfree(priv);
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/hid/hid-ids.h linux-libre-4.4.107-gnu/drivers/hid/hid-ids.h
--- linux-libre-4.4-gnu/drivers/hid/hid-ids.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/hid/hid-ids.h	2017-12-20 04:05:01.000000000 -0500
@@ -168,6 +168,7 @@
 #define USB_DEVICE_ID_ATEN_4PORTKVM	0x2205
 #define USB_DEVICE_ID_ATEN_4PORTKVMC	0x2208
 #define USB_DEVICE_ID_ATEN_CS682	0x2213
+#define USB_DEVICE_ID_ATEN_CS692	0x8021
 
 #define USB_VENDOR_ID_ATMEL		0x03eb
 #define USB_DEVICE_ID_ATMEL_MULTITOUCH	0x211c
@@ -255,6 +256,7 @@
 #define USB_DEVICE_ID_CORSAIR_K90	0x1b02
 
 #define USB_VENDOR_ID_CREATIVELABS	0x041e
+#define USB_DEVICE_ID_CREATIVE_SB_OMNI_SURROUND_51	0x322c
 #define USB_DEVICE_ID_PRODIKEYS_PCMIDI	0x2801
 
 #define USB_VENDOR_ID_CVTOUCH		0x1ff7
@@ -283,6 +285,9 @@
 #define USB_VENDOR_ID_DEALEXTREAME	0x10c5
 #define USB_DEVICE_ID_DEALEXTREAME_RADIO_SI4701	0x819a
 
+#define USB_VENDOR_ID_DELL				0x413c
+#define USB_DEVICE_ID_DELL_PIXART_USB_OPTICAL_MOUSE	0x301a
+
 #define USB_VENDOR_ID_DELORME		0x1163
 #define USB_DEVICE_ID_DELORME_EARTHMATE	0x0100
 #define USB_DEVICE_ID_DELORME_EM_LT20	0x0200
@@ -518,6 +523,7 @@
 
 #define USB_VENDOR_ID_JESS		0x0c45
 #define USB_DEVICE_ID_JESS_YUREX	0x1010
+#define USB_DEVICE_ID_JESS_ZEN_AIO_KBD	0x5112
 
 #define USB_VENDOR_ID_JESS2		0x0f30
 #define USB_DEVICE_ID_JESS2_COLOR_RUMBLE_PAD 0x0111
@@ -772,6 +778,9 @@
 #define USB_VENDOR_ID_PETALYNX		0x18b1
 #define USB_DEVICE_ID_PETALYNX_MAXTER_REMOTE	0x0037
 
+#define USB_VENDOR_ID_PETZL		0x2122
+#define USB_DEVICE_ID_PETZL_HEADLAMP	0x1234
+
 #define USB_VENDOR_ID_PHILIPS		0x0471
 #define USB_DEVICE_ID_PHILIPS_IEEE802154_DONGLE 0x0617
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/hid/hid-multitouch.c linux-libre-4.4.107-gnu/drivers/hid/hid-multitouch.c
--- linux-libre-4.4-gnu/drivers/hid/hid-multitouch.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/hid/hid-multitouch.c	2017-12-20 04:05:01.000000000 -0500
@@ -61,6 +61,7 @@ MODULE_LICENSE("GPL");
 #define MT_QUIRK_ALWAYS_VALID		(1 << 4)
 #define MT_QUIRK_VALID_IS_INRANGE	(1 << 5)
 #define MT_QUIRK_VALID_IS_CONFIDENCE	(1 << 6)
+#define MT_QUIRK_CONFIDENCE		(1 << 7)
 #define MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE	(1 << 8)
 #define MT_QUIRK_NO_AREA		(1 << 9)
 #define MT_QUIRK_IGNORE_DUPLICATES	(1 << 10)
@@ -78,6 +79,7 @@ struct mt_slot {
 	__s32 contactid;	/* the device ContactID assigned to this slot */
 	bool touch_state;	/* is the touch valid? */
 	bool inrange_state;	/* is the finger in proximity of the sensor? */
+	bool confidence_state;  /* is the touch made by a finger? */
 };
 
 struct mt_class {
@@ -357,8 +359,19 @@ static void mt_feature_mapping(struct hi
 			break;
 		}
 
-		td->inputmode = field->report->id;
-		td->inputmode_index = usage->usage_index;
+		if (td->inputmode < 0) {
+			td->inputmode = field->report->id;
+			td->inputmode_index = usage->usage_index;
+		} else {
+			/*
+			 * Some elan panels wrongly declare 2 input mode
+			 * features, and silently ignore when we set the
+			 * value in the second field. Skip the second feature
+			 * and hope for the best.
+			 */
+			dev_info(&hdev->dev,
+				 "Ignoring the extra HID_DG_INPUTMODE\n");
+		}
 
 		break;
 	case HID_DG_CONTACTMAX:
@@ -385,6 +398,11 @@ static void mt_feature_mapping(struct hi
 			td->is_buttonpad = true;
 
 		break;
+	case 0xff0000c5:
+		/* Retrieve the Win8 blob once to enable some devices */
+		if (usage->usage_index == 0)
+			mt_get_feature(hdev, field->report);
+		break;
 	}
 }
 
@@ -486,6 +504,9 @@ static int mt_touch_input_mapping(struct
 			mt_store_field(usage, td, hi);
 			return 1;
 		case HID_DG_CONFIDENCE:
+			if (cls->name == MT_CLS_WIN_8 &&
+				field->application == HID_DG_TOUCHPAD)
+				cls->quirks |= MT_QUIRK_CONFIDENCE;
 			mt_store_field(usage, td, hi);
 			return 1;
 		case HID_DG_TIPSWITCH:
@@ -598,6 +619,7 @@ static void mt_complete_slot(struct mt_d
 		return;
 
 	if (td->curvalid || (td->mtclass.quirks & MT_QUIRK_ALWAYS_VALID)) {
+		int active;
 		int slotnum = mt_compute_slot(td, input);
 		struct mt_slot *s = &td->curdata;
 		struct input_mt *mt = input->mt;
@@ -612,10 +634,14 @@ static void mt_complete_slot(struct mt_d
 				return;
 		}
 
+		if (!(td->mtclass.quirks & MT_QUIRK_CONFIDENCE))
+			s->confidence_state = 1;
+		active = (s->touch_state || s->inrange_state) &&
+							s->confidence_state;
+
 		input_mt_slot(input, slotnum);
-		input_mt_report_slot_state(input, MT_TOOL_FINGER,
-			s->touch_state || s->inrange_state);
-		if (s->touch_state || s->inrange_state) {
+		input_mt_report_slot_state(input, MT_TOOL_FINGER, active);
+		if (active) {
 			/* this finger is in proximity of the sensor */
 			int wide = (s->w > s->h);
 			/* divided by two to match visual scale of touch */
@@ -680,6 +706,8 @@ static void mt_process_mt_event(struct h
 			td->curdata.touch_state = value;
 			break;
 		case HID_DG_CONFIDENCE:
+			if (quirks & MT_QUIRK_CONFIDENCE)
+				td->curdata.confidence_state = value;
 			if (quirks & MT_QUIRK_VALID_IS_CONFIDENCE)
 				td->curvalid = value;
 			break;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/hid/hid-sony.c linux-libre-4.4.107-gnu/drivers/hid/hid-sony.c
--- linux-libre-4.4-gnu/drivers/hid/hid-sony.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/hid/hid-sony.c	2017-12-20 04:05:01.000000000 -0500
@@ -1418,8 +1418,10 @@ static int sixaxis_set_operational_usb(s
 	}
 
 	ret = hid_hw_output_report(hdev, buf, 1);
-	if (ret < 0)
-		hid_err(hdev, "can't set operational mode: step 3\n");
+	if (ret < 0) {
+		hid_info(hdev, "can't set operational mode: step 3, ignoring\n");
+		ret = 0;
+	}
 
 out:
 	kfree(buf);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/hid/i2c-hid/i2c-hid.c linux-libre-4.4.107-gnu/drivers/hid/i2c-hid/i2c-hid.c
--- linux-libre-4.4-gnu/drivers/hid/i2c-hid/i2c-hid.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/hid/i2c-hid/i2c-hid.c	2017-12-20 04:05:01.000000000 -0500
@@ -282,17 +282,21 @@ static int i2c_hid_set_or_send_report(st
 	u16 dataRegister = le16_to_cpu(ihid->hdesc.wDataRegister);
 	u16 outputRegister = le16_to_cpu(ihid->hdesc.wOutputRegister);
 	u16 maxOutputLength = le16_to_cpu(ihid->hdesc.wMaxOutputLength);
+	u16 size;
+	int args_len;
+	int index = 0;
 
-	/* hid_hw_* already checked that data_len < HID_MAX_BUFFER_SIZE */
-	u16 size =	2			/* size */ +
+	i2c_hid_dbg(ihid, "%s\n", __func__);
+
+	if (data_len > ihid->bufsize)
+		return -EINVAL;
+
+	size =		2			/* size */ +
 			(reportID ? 1 : 0)	/* reportID */ +
 			data_len		/* buf */;
-	int args_len =	(reportID >= 0x0F ? 1 : 0) /* optional third byte */ +
+	args_len =	(reportID >= 0x0F ? 1 : 0) /* optional third byte */ +
 			2			/* dataRegister */ +
 			size			/* args */;
-	int index = 0;
-
-	i2c_hid_dbg(ihid, "%s\n", __func__);
 
 	if (!use_data && maxOutputLength == 0)
 		return -ENOSYS;
@@ -360,6 +364,15 @@ static int i2c_hid_hwreset(struct i2c_cl
 	if (ret)
 		return ret;
 
+	/*
+	 * The HID over I2C specification states that if a DEVICE needs time
+	 * after the PWR_ON request, it should utilise CLOCK stretching.
+	 * However, it has been observered that the Windows driver provides a
+	 * 1ms sleep between the PWR_ON and RESET requests and that some devices
+	 * rely on this.
+	 */
+	usleep_range(1000, 5000);
+
 	i2c_hid_dbg(ihid, "resetting...\n");
 
 	ret = i2c_hid_command(client, &hid_reset_cmd, NULL, 0);
@@ -527,7 +540,8 @@ static int i2c_hid_alloc_buffers(struct
 {
 	/* the worst case is computed from the set_report command with a
 	 * reportID > 15 and the maximum report length */
-	int args_len = sizeof(__u8) + /* optional ReportID byte */
+	int args_len = sizeof(__u8) + /* ReportID */
+		       sizeof(__u8) + /* optional ReportID byte */
 		       sizeof(__u16) + /* data register */
 		       sizeof(__u16) + /* size of the report */
 		       report_size; /* report */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/hid/Kconfig linux-libre-4.4.107-gnu/drivers/hid/Kconfig
--- linux-libre-4.4-gnu/drivers/hid/Kconfig	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/hid/Kconfig	2017-12-20 04:05:01.000000000 -0500
@@ -165,11 +165,11 @@ config HID_CHERRY
 	Support for Cherry Cymotion keyboard.
 
 config HID_CHICONY
-	tristate "Chicony Tactical pad"
+	tristate "Chicony devices"
 	depends on HID
 	default !EXPERT
 	---help---
-	Support for Chicony Tactical pad.
+	Support for Chicony Tactical pad and special keys on Chicony keyboards.
 
 config HID_CORSAIR
 	tristate "Corsair devices"
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/hid/uhid.c linux-libre-4.4.107-gnu/drivers/hid/uhid.c
--- linux-libre-4.4-gnu/drivers/hid/uhid.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/hid/uhid.c	2017-12-20 04:05:01.000000000 -0500
@@ -51,10 +51,26 @@ struct uhid_device {
 	u32 report_id;
 	u32 report_type;
 	struct uhid_event report_buf;
+	struct work_struct worker;
 };
 
 static struct miscdevice uhid_misc;
 
+static void uhid_device_add_worker(struct work_struct *work)
+{
+	struct uhid_device *uhid = container_of(work, struct uhid_device, worker);
+	int ret;
+
+	ret = hid_add_device(uhid->hid);
+	if (ret) {
+		hid_err(uhid->hid, "Cannot register HID device: error %d\n", ret);
+
+		hid_destroy_device(uhid->hid);
+		uhid->hid = NULL;
+		uhid->running = false;
+	}
+}
+
 static void uhid_queue(struct uhid_device *uhid, struct uhid_event *ev)
 {
 	__u8 newhead;
@@ -498,18 +514,14 @@ static int uhid_dev_create2(struct uhid_
 	uhid->hid = hid;
 	uhid->running = true;
 
-	ret = hid_add_device(hid);
-	if (ret) {
-		hid_err(hid, "Cannot register HID device\n");
-		goto err_hid;
-	}
+	/* Adding of a HID device is done through a worker, to allow HID drivers
+	 * which use feature requests during .probe to work, without they would
+	 * be blocked on devlock, which is held by uhid_char_write.
+	 */
+	schedule_work(&uhid->worker);
 
 	return 0;
 
-err_hid:
-	hid_destroy_device(hid);
-	uhid->hid = NULL;
-	uhid->running = false;
 err_free:
 	kfree(uhid->rd_data);
 	uhid->rd_data = NULL;
@@ -550,6 +562,8 @@ static int uhid_dev_destroy(struct uhid_
 	uhid->running = false;
 	wake_up_interruptible(&uhid->report_wait);
 
+	cancel_work_sync(&uhid->worker);
+
 	hid_destroy_device(uhid->hid);
 	kfree(uhid->rd_data);
 
@@ -612,6 +626,7 @@ static int uhid_char_open(struct inode *
 	init_waitqueue_head(&uhid->waitq);
 	init_waitqueue_head(&uhid->report_wait);
 	uhid->running = false;
+	INIT_WORK(&uhid->worker, uhid_device_add_worker);
 
 	file->private_data = uhid;
 	nonseekable_open(inode, file);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/hid/usbhid/hid-core.c linux-libre-4.4.107-gnu/drivers/hid/usbhid/hid-core.c
--- linux-libre-4.4-gnu/drivers/hid/usbhid/hid-core.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/hid/usbhid/hid-core.c	2017-12-20 04:05:01.000000000 -0500
@@ -477,8 +477,6 @@ static void hid_ctrl(struct urb *urb)
 	struct usbhid_device *usbhid = hid->driver_data;
 	int unplug = 0, status = urb->status;
 
-	spin_lock(&usbhid->lock);
-
 	switch (status) {
 	case 0:			/* success */
 		if (usbhid->ctrl[usbhid->ctrltail].dir == USB_DIR_IN)
@@ -498,6 +496,8 @@ static void hid_ctrl(struct urb *urb)
 		hid_warn(urb->dev, "ctrl urb status %d received\n", status);
 	}
 
+	spin_lock(&usbhid->lock);
+
 	if (unplug) {
 		usbhid->ctrltail = usbhid->ctrlhead;
 	} else {
@@ -951,14 +951,6 @@ static int usbhid_output_report(struct h
 	return ret;
 }
 
-static void usbhid_restart_queues(struct usbhid_device *usbhid)
-{
-	if (usbhid->urbout && !test_bit(HID_OUT_RUNNING, &usbhid->iofl))
-		usbhid_restart_out_queue(usbhid);
-	if (!test_bit(HID_CTRL_RUNNING, &usbhid->iofl))
-		usbhid_restart_ctrl_queue(usbhid);
-}
-
 static void hid_free_buffers(struct usb_device *dev, struct hid_device *hid)
 {
 	struct usbhid_device *usbhid = hid->driver_data;
@@ -979,6 +971,8 @@ static int usbhid_parse(struct hid_devic
 	unsigned int rsize = 0;
 	char *rdesc;
 	int ret, n;
+	int num_descriptors;
+	size_t offset = offsetof(struct hid_descriptor, desc);
 
 	quirks = usbhid_lookup_quirk(le16_to_cpu(dev->descriptor.idVendor),
 			le16_to_cpu(dev->descriptor.idProduct));
@@ -1001,10 +995,18 @@ static int usbhid_parse(struct hid_devic
 		return -ENODEV;
 	}
 
+	if (hdesc->bLength < sizeof(struct hid_descriptor)) {
+		dbg_hid("hid descriptor is too short\n");
+		return -EINVAL;
+	}
+
 	hid->version = le16_to_cpu(hdesc->bcdHID);
 	hid->country = hdesc->bCountryCode;
 
-	for (n = 0; n < hdesc->bNumDescriptors; n++)
+	num_descriptors = min_t(int, hdesc->bNumDescriptors,
+	       (hdesc->bLength - offset) / sizeof(struct hid_class_descriptor));
+
+	for (n = 0; n < num_descriptors; n++)
 		if (hdesc->desc[n].bDescriptorType == HID_DT_REPORT)
 			rsize = le16_to_cpu(hdesc->desc[n].wDescriptorLength);
 
@@ -1404,6 +1406,37 @@ static void hid_cease_io(struct usbhid_d
 	usb_kill_urb(usbhid->urbout);
 }
 
+static void hid_restart_io(struct hid_device *hid)
+{
+	struct usbhid_device *usbhid = hid->driver_data;
+	int clear_halt = test_bit(HID_CLEAR_HALT, &usbhid->iofl);
+	int reset_pending = test_bit(HID_RESET_PENDING, &usbhid->iofl);
+
+	spin_lock_irq(&usbhid->lock);
+	clear_bit(HID_SUSPENDED, &usbhid->iofl);
+	usbhid_mark_busy(usbhid);
+
+	if (clear_halt || reset_pending)
+		schedule_work(&usbhid->reset_work);
+	usbhid->retry_delay = 0;
+	spin_unlock_irq(&usbhid->lock);
+
+	if (reset_pending || !test_bit(HID_STARTED, &usbhid->iofl))
+		return;
+
+	if (!clear_halt) {
+		if (hid_start_in(hid) < 0)
+			hid_io_error(hid);
+	}
+
+	spin_lock_irq(&usbhid->lock);
+	if (usbhid->urbout && !test_bit(HID_OUT_RUNNING, &usbhid->iofl))
+		usbhid_restart_out_queue(usbhid);
+	if (!test_bit(HID_CTRL_RUNNING, &usbhid->iofl))
+		usbhid_restart_ctrl_queue(usbhid);
+	spin_unlock_irq(&usbhid->lock);
+}
+
 /* Treat USB reset pretty much the same as suspend/resume */
 static int hid_pre_reset(struct usb_interface *intf)
 {
@@ -1453,14 +1486,14 @@ static int hid_post_reset(struct usb_int
 		return 1;
 	}
 
+	/* No need to do another reset or clear a halted endpoint */
 	spin_lock_irq(&usbhid->lock);
 	clear_bit(HID_RESET_PENDING, &usbhid->iofl);
+	clear_bit(HID_CLEAR_HALT, &usbhid->iofl);
 	spin_unlock_irq(&usbhid->lock);
 	hid_set_idle(dev, intf->cur_altsetting->desc.bInterfaceNumber, 0, 0);
-	status = hid_start_in(hid);
-	if (status < 0)
-		hid_io_error(hid);
-	usbhid_restart_queues(usbhid);
+
+	hid_restart_io(hid);
 
 	return 0;
 }
@@ -1483,25 +1516,9 @@ void usbhid_put_power(struct hid_device
 #ifdef CONFIG_PM
 static int hid_resume_common(struct hid_device *hid, bool driver_suspended)
 {
-	struct usbhid_device *usbhid = hid->driver_data;
-	int status;
-
-	spin_lock_irq(&usbhid->lock);
-	clear_bit(HID_SUSPENDED, &usbhid->iofl);
-	usbhid_mark_busy(usbhid);
-
-	if (test_bit(HID_CLEAR_HALT, &usbhid->iofl) ||
-			test_bit(HID_RESET_PENDING, &usbhid->iofl))
-		schedule_work(&usbhid->reset_work);
-	usbhid->retry_delay = 0;
-
-	usbhid_restart_queues(usbhid);
-	spin_unlock_irq(&usbhid->lock);
-
-	status = hid_start_in(hid);
-	if (status < 0)
-		hid_io_error(hid);
+	int status = 0;
 
+	hid_restart_io(hid);
 	if (driver_suspended && hid->driver && hid->driver->resume)
 		status = hid->driver->resume(hid);
 	return status;
@@ -1570,12 +1587,8 @@ static int hid_suspend(struct usb_interf
 static int hid_resume(struct usb_interface *intf)
 {
 	struct hid_device *hid = usb_get_intfdata (intf);
-	struct usbhid_device *usbhid = hid->driver_data;
 	int status;
 
-	if (!test_bit(HID_STARTED, &usbhid->iofl))
-		return 0;
-
 	status = hid_resume_common(hid, true);
 	dev_dbg(&intf->dev, "resume status %d\n", status);
 	return 0;
@@ -1584,10 +1597,8 @@ static int hid_resume(struct usb_interfa
 static int hid_reset_resume(struct usb_interface *intf)
 {
 	struct hid_device *hid = usb_get_intfdata(intf);
-	struct usbhid_device *usbhid = hid->driver_data;
 	int status;
 
-	clear_bit(HID_SUSPENDED, &usbhid->iofl);
 	status = hid_post_reset(intf);
 	if (status >= 0 && hid->driver && hid->driver->reset_resume) {
 		int ret = hid->driver->reset_resume(hid);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/hid/usbhid/hiddev.c linux-libre-4.4.107-gnu/drivers/hid/usbhid/hiddev.c
--- linux-libre-4.4-gnu/drivers/hid/usbhid/hiddev.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/hid/usbhid/hiddev.c	2017-12-20 04:05:01.000000000 -0500
@@ -516,13 +516,13 @@ static noinline int hiddev_ioctl_usage(s
 					goto inval;
 			} else if (uref->usage_index >= field->report_count)
 				goto inval;
-
-			else if ((cmd == HIDIOCGUSAGES || cmd == HIDIOCSUSAGES) &&
-				 (uref_multi->num_values > HID_MAX_MULTI_USAGES ||
-				  uref->usage_index + uref_multi->num_values > field->report_count))
-				goto inval;
 		}
 
+		if ((cmd == HIDIOCGUSAGES || cmd == HIDIOCSUSAGES) &&
+		    (uref_multi->num_values > HID_MAX_MULTI_USAGES ||
+		     uref->usage_index + uref_multi->num_values > field->report_count))
+			goto inval;
+
 		switch (cmd) {
 		case HIDIOCGUSAGE:
 			uref->value = field->value[uref->usage_index];
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/hid/usbhid/hid-quirks.c linux-libre-4.4.107-gnu/drivers/hid/usbhid/hid-quirks.c
--- linux-libre-4.4-gnu/drivers/hid/usbhid/hid-quirks.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/hid/usbhid/hid-quirks.c	2017-12-20 04:05:01.000000000 -0500
@@ -61,6 +61,7 @@ static const struct hid_blacklist {
 	{ USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_4PORTKVM, HID_QUIRK_NOGET },
 	{ USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_4PORTKVMC, HID_QUIRK_NOGET },
 	{ USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_CS682, HID_QUIRK_NOGET },
+	{ USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_CS692, HID_QUIRK_NOGET },
 	{ USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_FIGHTERSTICK, HID_QUIRK_NOGET },
 	{ USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_COMBATSTICK, HID_QUIRK_NOGET },
 	{ USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_FLIGHT_SIM_ECLIPSE_YOKE, HID_QUIRK_NOGET },
@@ -70,6 +71,8 @@ static const struct hid_blacklist {
 	{ USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_3AXIS_5BUTTON_STICK, HID_QUIRK_NOGET },
 	{ USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_AXIS_295, HID_QUIRK_NOGET },
 	{ USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_PIXART_USB_OPTICAL_MOUSE, HID_QUIRK_ALWAYS_POLL },
+	{ USB_VENDOR_ID_CREATIVELABS, USB_DEVICE_ID_CREATIVE_SB_OMNI_SURROUND_51, HID_QUIRK_NOGET },
+	{ USB_VENDOR_ID_DELL, USB_DEVICE_ID_DELL_PIXART_USB_OPTICAL_MOUSE, HID_QUIRK_ALWAYS_POLL },
 	{ USB_VENDOR_ID_DMI, USB_DEVICE_ID_DMI_ENC, HID_QUIRK_NOGET },
 	{ USB_VENDOR_ID_DRAGONRISE, USB_DEVICE_ID_DRAGONRISE_WIIU, HID_QUIRK_MULTI_INPUT },
 	{ USB_VENDOR_ID_ELAN, HID_ANY_ID, HID_QUIRK_ALWAYS_POLL },
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/hid/wacom_wac.c linux-libre-4.4.107-gnu/drivers/hid/wacom_wac.c
--- linux-libre-4.4-gnu/drivers/hid/wacom_wac.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/hid/wacom_wac.c	2017-12-20 04:05:01.000000000 -0500
@@ -148,19 +148,21 @@ static int wacom_pl_irq(struct wacom_wac
 		wacom->id[0] = STYLUS_DEVICE_ID;
 	}
 
-	pressure = (signed char)((data[7] << 1) | ((data[4] >> 2) & 1));
-	if (features->pressure_max > 255)
-		pressure = (pressure << 1) | ((data[4] >> 6) & 1);
-	pressure += (features->pressure_max + 1) / 2;
+	if (prox) {
+		pressure = (signed char)((data[7] << 1) | ((data[4] >> 2) & 1));
+		if (features->pressure_max > 255)
+			pressure = (pressure << 1) | ((data[4] >> 6) & 1);
+		pressure += (features->pressure_max + 1) / 2;
 
-	input_report_abs(input, ABS_X, data[3] | (data[2] << 7) | ((data[1] & 0x03) << 14));
-	input_report_abs(input, ABS_Y, data[6] | (data[5] << 7) | ((data[4] & 0x03) << 14));
-	input_report_abs(input, ABS_PRESSURE, pressure);
+		input_report_abs(input, ABS_X, data[3] | (data[2] << 7) | ((data[1] & 0x03) << 14));
+		input_report_abs(input, ABS_Y, data[6] | (data[5] << 7) | ((data[4] & 0x03) << 14));
+		input_report_abs(input, ABS_PRESSURE, pressure);
 
-	input_report_key(input, BTN_TOUCH, data[4] & 0x08);
-	input_report_key(input, BTN_STYLUS, data[4] & 0x10);
-	/* Only allow the stylus2 button to be reported for the pen tool. */
-	input_report_key(input, BTN_STYLUS2, (wacom->tool[0] == BTN_TOOL_PEN) && (data[4] & 0x20));
+		input_report_key(input, BTN_TOUCH, data[4] & 0x08);
+		input_report_key(input, BTN_STYLUS, data[4] & 0x10);
+		/* Only allow the stylus2 button to be reported for the pen tool. */
+		input_report_key(input, BTN_STYLUS2, (wacom->tool[0] == BTN_TOOL_PEN) && (data[4] & 0x20));
+	}
 
 	if (!prox)
 		wacom->id[0] = 0;
@@ -1438,37 +1440,38 @@ static int wacom_tpc_irq(struct wacom_wa
 {
 	unsigned char *data = wacom->data;
 
-	if (wacom->pen_input)
+	if (wacom->pen_input) {
 		dev_dbg(wacom->pen_input->dev.parent,
 			"%s: received report #%d\n", __func__, data[0]);
-	else if (wacom->touch_input)
+
+		if (len == WACOM_PKGLEN_PENABLED ||
+		    data[0] == WACOM_REPORT_PENABLED)
+			return wacom_tpc_pen(wacom);
+	}
+	else if (wacom->touch_input) {
 		dev_dbg(wacom->touch_input->dev.parent,
 			"%s: received report #%d\n", __func__, data[0]);
 
-	switch (len) {
-	case WACOM_PKGLEN_TPC1FG:
-		return wacom_tpc_single_touch(wacom, len);
-
-	case WACOM_PKGLEN_TPC2FG:
-		return wacom_tpc_mt_touch(wacom);
+		switch (len) {
+		case WACOM_PKGLEN_TPC1FG:
+			return wacom_tpc_single_touch(wacom, len);
 
-	case WACOM_PKGLEN_PENABLED:
-		return wacom_tpc_pen(wacom);
+		case WACOM_PKGLEN_TPC2FG:
+			return wacom_tpc_mt_touch(wacom);
 
-	default:
-		switch (data[0]) {
-		case WACOM_REPORT_TPC1FG:
-		case WACOM_REPORT_TPCHID:
-		case WACOM_REPORT_TPCST:
-		case WACOM_REPORT_TPC1FGE:
-			return wacom_tpc_single_touch(wacom, len);
+		default:
+			switch (data[0]) {
+			case WACOM_REPORT_TPC1FG:
+			case WACOM_REPORT_TPCHID:
+			case WACOM_REPORT_TPCST:
+			case WACOM_REPORT_TPC1FGE:
+				return wacom_tpc_single_touch(wacom, len);
 
-		case WACOM_REPORT_TPCMT:
-		case WACOM_REPORT_TPCMT2:
-			return wacom_mt_touch(wacom);
+			case WACOM_REPORT_TPCMT:
+			case WACOM_REPORT_TPCMT2:
+				return wacom_mt_touch(wacom);
 
-		case WACOM_REPORT_PENABLED:
-			return wacom_tpc_pen(wacom);
+			}
 		}
 	}
 
@@ -2493,6 +2496,17 @@ void wacom_setup_device_quirks(struct wa
 	}
 
 	/*
+	 * Hack for the Bamboo One:
+	 * the device presents a PAD/Touch interface as most Bamboos and even
+	 * sends ghosts PAD data on it. However, later, we must disable this
+	 * ghost interface, and we can not detect it unless we set it here
+	 * to WACOM_DEVICETYPE_PAD or WACOM_DEVICETYPE_TOUCH.
+	 */
+	if (features->type == BAMBOO_PEN &&
+	    features->pktlen == WACOM_PKGLEN_BBTOUCH3)
+		features->device_type |= WACOM_DEVICETYPE_PAD;
+
+	/*
 	 * Raw Wacom-mode pen and touch events both come from interface
 	 * 0, whose HID descriptor has an application usage of 0xFF0D
 	 * (i.e., WACOM_VENDORDEFINED_PEN). We route pen packets back
@@ -3438,6 +3452,10 @@ static const struct wacom_features wacom
 	{ "Wacom Intuos PT M 2", 21600, 13500, 2047, 63,
 	  INTUOSHT2, WACOM_INTUOS_RES, WACOM_INTUOS_RES, .touch_max = 16,
 	  .check_for_hid_type = true, .hid_type = HID_TYPE_USBNONE };
+static const struct wacom_features wacom_features_0x343 =
+	{ "Wacom DTK1651", 34616, 19559, 1023, 0,
+	  DTUS, WACOM_INTUOS_RES, WACOM_INTUOS_RES, 4,
+	  WACOM_DTU_OFFSET, WACOM_DTU_OFFSET };
 
 static const struct wacom_features wacom_features_HID_ANY_ID =
 	{ "Wacom HID", .type = HID_GENERIC };
@@ -3603,6 +3621,7 @@ const struct hid_device_id wacom_ids[] =
 	{ USB_DEVICE_WACOM(0x33C) },
 	{ USB_DEVICE_WACOM(0x33D) },
 	{ USB_DEVICE_WACOM(0x33E) },
+	{ USB_DEVICE_WACOM(0x343) },
 	{ USB_DEVICE_WACOM(0x4001) },
 	{ USB_DEVICE_WACOM(0x4004) },
 	{ USB_DEVICE_WACOM(0x5000) },
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/hv/channel.c linux-libre-4.4.107-gnu/drivers/hv/channel.c
--- linux-libre-4.4-gnu/drivers/hv/channel.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/hv/channel.c	2017-12-20 04:05:01.000000000 -0500
@@ -28,6 +28,7 @@
 #include <linux/module.h>
 #include <linux/hyperv.h>
 #include <linux/uio.h>
+#include <linux/interrupt.h>
 
 #include "hyperv_vmbus.h"
 
@@ -72,7 +73,6 @@ int vmbus_open(struct vmbus_channel *new
 	void *in, *out;
 	unsigned long flags;
 	int ret, err = 0;
-	unsigned long t;
 	struct page *page;
 
 	spin_lock_irqsave(&newchannel->lock, flags);
@@ -182,11 +182,7 @@ int vmbus_open(struct vmbus_channel *new
 		goto error1;
 	}
 
-	t = wait_for_completion_timeout(&open_info->waitevent, 5*HZ);
-	if (t == 0) {
-		err = -ETIMEDOUT;
-		goto error1;
-	}
+	wait_for_completion(&open_info->waitevent);
 
 	spin_lock_irqsave(&vmbus_connection.channelmsg_lock, flags);
 	list_del(&open_info->msglistentry);
@@ -374,7 +370,7 @@ int vmbus_establish_gpadl(struct vmbus_c
 	struct vmbus_channel_gpadl_header *gpadlmsg;
 	struct vmbus_channel_gpadl_body *gpadl_body;
 	struct vmbus_channel_msginfo *msginfo = NULL;
-	struct vmbus_channel_msginfo *submsginfo;
+	struct vmbus_channel_msginfo *submsginfo, *tmp;
 	u32 msgcount;
 	struct list_head *curr;
 	u32 next_gpadl_handle;
@@ -436,6 +432,13 @@ cleanup:
 	list_del(&msginfo->msglistentry);
 	spin_unlock_irqrestore(&vmbus_connection.channelmsg_lock, flags);
 
+	if (msgcount > 1) {
+		list_for_each_entry_safe(submsginfo, tmp, &msginfo->submsglist,
+			 msglistentry) {
+			kfree(submsginfo);
+		}
+	}
+
 	kfree(msginfo);
 	return ret;
 }
@@ -496,8 +499,21 @@ static void reset_channel_cb(void *arg)
 static int vmbus_close_internal(struct vmbus_channel *channel)
 {
 	struct vmbus_channel_close_channel *msg;
+	struct tasklet_struct *tasklet;
 	int ret;
 
+	/*
+	 * process_chn_event(), running in the tasklet, can race
+	 * with vmbus_close_internal() in the case of SMP guest, e.g., when
+	 * the former is accessing channel->inbound.ring_buffer, the latter
+	 * could be freeing the ring_buffer pages.
+	 *
+	 * To resolve the race, we can serialize them by disabling the
+	 * tasklet when the latter is running here.
+	 */
+	tasklet = hv_context.event_dpc[channel->target_cpu];
+	tasklet_disable(tasklet);
+
 	channel->state = CHANNEL_OPEN_STATE;
 	channel->sc_creation_callback = NULL;
 	/* Stop callback and cancel the timer asap */
@@ -525,7 +541,7 @@ static int vmbus_close_internal(struct v
 		 * If we failed to post the close msg,
 		 * it is perhaps better to leak memory.
 		 */
-		return ret;
+		goto out;
 	}
 
 	/* Tear down the gpadl for the channel's ring buffer */
@@ -538,7 +554,7 @@ static int vmbus_close_internal(struct v
 			 * If we failed to teardown gpadl,
 			 * it is perhaps better to leak memory.
 			 */
-			return ret;
+			goto out;
 		}
 	}
 
@@ -549,12 +565,9 @@ static int vmbus_close_internal(struct v
 	free_pages((unsigned long)channel->ringbuffer_pages,
 		get_order(channel->ringbuffer_pagecount * PAGE_SIZE));
 
-	/*
-	 * If the channel has been rescinded; process device removal.
-	 */
-	if (channel->rescind)
-		hv_process_channel_removal(channel,
-					   channel->offermsg.child_relid);
+out:
+	tasklet_enable(tasklet);
+
 	return ret;
 }
 
@@ -630,10 +643,19 @@ int vmbus_sendpacket_ctl(struct vmbus_ch
 	 *    on the ring. We will not signal if more data is
 	 *    to be placed.
 	 *
+	 * Based on the channel signal state, we will decide
+	 * which signaling policy will be applied.
+	 *
 	 * If we cannot write to the ring-buffer; signal the host
 	 * even if we may not have written anything. This is a rare
 	 * enough condition that it should not matter.
 	 */
+
+	if (channel->signal_policy)
+		signal = true;
+	else
+		kick_q = true;
+
 	if (((ret == 0) && kick_q && signal) || (ret))
 		vmbus_setevent(channel);
 
@@ -733,10 +755,19 @@ int vmbus_sendpacket_pagebuffer_ctl(stru
 	 *    on the ring. We will not signal if more data is
 	 *    to be placed.
 	 *
+	 * Based on the channel signal state, we will decide
+	 * which signaling policy will be applied.
+	 *
 	 * If we cannot write to the ring-buffer; signal the host
 	 * even if we may not have written anything. This is a rare
 	 * enough condition that it should not matter.
 	 */
+
+	if (channel->signal_policy)
+		signal = true;
+	else
+		kick_q = true;
+
 	if (((ret == 0) && kick_q && signal) || (ret))
 		vmbus_setevent(channel);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/hv/channel_mgmt.c linux-libre-4.4.107-gnu/drivers/hv/channel_mgmt.c
--- linux-libre-4.4-gnu/drivers/hv/channel_mgmt.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/hv/channel_mgmt.c	2017-12-20 04:05:01.000000000 -0500
@@ -28,6 +28,7 @@
 #include <linux/list.h>
 #include <linux/module.h>
 #include <linux/completion.h>
+#include <linux/delay.h>
 #include <linux/hyperv.h>
 
 #include "hyperv_vmbus.h"
@@ -191,6 +192,8 @@ void hv_process_channel_removal(struct v
 	if (channel == NULL)
 		return;
 
+	BUG_ON(!channel->rescind);
+
 	if (channel->target_cpu != get_cpu()) {
 		put_cpu();
 		smp_call_function_single(channel->target_cpu,
@@ -230,9 +233,7 @@ void vmbus_free_channels(void)
 
 	list_for_each_entry_safe(channel, tmp, &vmbus_connection.chn_list,
 		listentry) {
-		/* if we don't set rescind to true, vmbus_close_internal()
-		 * won't invoke hv_process_channel_removal().
-		 */
+		/* hv_process_channel_removal() needs this */
 		channel->rescind = true;
 
 		vmbus_device_unregister(channel->device_obj);
@@ -459,6 +460,17 @@ static void init_vp_index(struct vmbus_c
 		    cpumask_of_node(primary->numa_node));
 
 	cur_cpu = -1;
+
+	/*
+	 * Normally Hyper-V host doesn't create more subchannels than there
+	 * are VCPUs on the node but it is possible when not all present VCPUs
+	 * on the node are initialized by guest. Clear the alloced_cpus_in_node
+	 * to start over.
+	 */
+	if (cpumask_equal(&primary->alloced_cpus_in_node,
+			  cpumask_of_node(primary->numa_node)))
+		cpumask_clear(&primary->alloced_cpus_in_node);
+
 	while (true) {
 		cur_cpu = cpumask_next(cur_cpu, &available_mask);
 		if (cur_cpu >= nr_cpu_ids) {
@@ -488,6 +500,40 @@ static void init_vp_index(struct vmbus_c
 	channel->target_vp = hv_context.vp_index[cur_cpu];
 }
 
+static void vmbus_wait_for_unload(void)
+{
+	int cpu = smp_processor_id();
+	void *page_addr = hv_context.synic_message_page[cpu];
+	struct hv_message *msg = (struct hv_message *)page_addr +
+				  VMBUS_MESSAGE_SINT;
+	struct vmbus_channel_message_header *hdr;
+	bool unloaded = false;
+
+	while (1) {
+		if (msg->header.message_type == HVMSG_NONE) {
+			mdelay(10);
+			continue;
+		}
+
+		hdr = (struct vmbus_channel_message_header *)msg->u.payload;
+		if (hdr->msgtype == CHANNELMSG_UNLOAD_RESPONSE)
+			unloaded = true;
+
+		msg->header.message_type = HVMSG_NONE;
+		/*
+		 * header.message_type needs to be written before we do
+		 * wrmsrl() below.
+		 */
+		mb();
+
+		if (msg->header.message_flags.msg_pending)
+			wrmsrl(HV_X64_MSR_EOM, 0);
+
+		if (unloaded)
+			break;
+	}
+}
+
 /*
  * vmbus_unload_response - Handler for the unload response.
  */
@@ -513,7 +559,14 @@ void vmbus_initiate_unload(void)
 	hdr.msgtype = CHANNELMSG_UNLOAD;
 	vmbus_post_msg(&hdr, sizeof(struct vmbus_channel_message_header));
 
-	wait_for_completion(&vmbus_connection.unload_event);
+	/*
+	 * vmbus_initiate_unload() is also called on crash and the crash can be
+	 * happening in an interrupt context, where scheduling is impossible.
+	 */
+	if (!in_interrupt())
+		wait_for_completion(&vmbus_connection.unload_event);
+	else
+		vmbus_wait_for_unload();
 }
 
 /*
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/hv/connection.c linux-libre-4.4.107-gnu/drivers/hv/connection.c
--- linux-libre-4.4-gnu/drivers/hv/connection.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/hv/connection.c	2017-12-20 04:05:01.000000000 -0500
@@ -429,7 +429,7 @@ int vmbus_post_msg(void *buffer, size_t
 	union hv_connection_id conn_id;
 	int ret = 0;
 	int retries = 0;
-	u32 msec = 1;
+	u32 usec = 1;
 
 	conn_id.asu32 = 0;
 	conn_id.u.id = VMBUS_MESSAGE_CONNECTION_ID;
@@ -462,9 +462,9 @@ int vmbus_post_msg(void *buffer, size_t
 		}
 
 		retries++;
-		msleep(msec);
-		if (msec < 2048)
-			msec *= 2;
+		udelay(usec);
+		if (usec < 2048)
+			usec *= 2;
 	}
 	return ret;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/hv/hv_balloon.c linux-libre-4.4.107-gnu/drivers/hv/hv_balloon.c
--- linux-libre-4.4-gnu/drivers/hv/hv_balloon.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/hv/hv_balloon.c	2017-12-20 04:05:01.000000000 -0500
@@ -430,16 +430,27 @@ struct dm_info_msg {
  * currently hot added. We hot add in multiples of 128M
  * chunks; it is possible that we may not be able to bring
  * online all the pages in the region. The range
- * covered_end_pfn defines the pages that can
+ * covered_start_pfn:covered_end_pfn defines the pages that can
  * be brough online.
  */
 
 struct hv_hotadd_state {
 	struct list_head list;
 	unsigned long start_pfn;
+	unsigned long covered_start_pfn;
 	unsigned long covered_end_pfn;
 	unsigned long ha_end_pfn;
 	unsigned long end_pfn;
+	/*
+	 * A list of gaps.
+	 */
+	struct list_head gap_list;
+};
+
+struct hv_hotadd_gap {
+	struct list_head list;
+	unsigned long start_pfn;
+	unsigned long end_pfn;
 };
 
 struct balloon_state {
@@ -595,18 +606,46 @@ static struct notifier_block hv_memory_n
 	.priority = 0
 };
 
+/* Check if the particular page is backed and can be onlined and online it. */
+static void hv_page_online_one(struct hv_hotadd_state *has, struct page *pg)
+{
+	unsigned long cur_start_pgp;
+	unsigned long cur_end_pgp;
+	struct hv_hotadd_gap *gap;
 
-static void hv_bring_pgs_online(unsigned long start_pfn, unsigned long size)
+	cur_start_pgp = (unsigned long)pfn_to_page(has->covered_start_pfn);
+	cur_end_pgp = (unsigned long)pfn_to_page(has->covered_end_pfn);
+
+	/* The page is not backed. */
+	if (((unsigned long)pg < cur_start_pgp) ||
+	    ((unsigned long)pg >= cur_end_pgp))
+		return;
+
+	/* Check for gaps. */
+	list_for_each_entry(gap, &has->gap_list, list) {
+		cur_start_pgp = (unsigned long)
+			pfn_to_page(gap->start_pfn);
+		cur_end_pgp = (unsigned long)
+			pfn_to_page(gap->end_pfn);
+		if (((unsigned long)pg >= cur_start_pgp) &&
+		    ((unsigned long)pg < cur_end_pgp)) {
+			return;
+		}
+	}
+
+	/* This frame is currently backed; online the page. */
+	__online_page_set_limits(pg);
+	__online_page_increment_counters(pg);
+	__online_page_free(pg);
+}
+
+static void hv_bring_pgs_online(struct hv_hotadd_state *has,
+				unsigned long start_pfn, unsigned long size)
 {
 	int i;
 
-	for (i = 0; i < size; i++) {
-		struct page *pg;
-		pg = pfn_to_page(start_pfn + i);
-		__online_page_set_limits(pg);
-		__online_page_increment_counters(pg);
-		__online_page_free(pg);
-	}
+	for (i = 0; i < size; i++)
+		hv_page_online_one(has, pfn_to_page(start_pfn + i));
 }
 
 static void hv_mem_hot_add(unsigned long start, unsigned long size,
@@ -682,26 +721,25 @@ static void hv_online_page(struct page *
 
 	list_for_each(cur, &dm_device.ha_region_list) {
 		has = list_entry(cur, struct hv_hotadd_state, list);
-		cur_start_pgp = (unsigned long)pfn_to_page(has->start_pfn);
-		cur_end_pgp = (unsigned long)pfn_to_page(has->covered_end_pfn);
+		cur_start_pgp = (unsigned long)
+			pfn_to_page(has->start_pfn);
+		cur_end_pgp = (unsigned long)pfn_to_page(has->end_pfn);
 
-		if (((unsigned long)pg >= cur_start_pgp) &&
-			((unsigned long)pg < cur_end_pgp)) {
-			/*
-			 * This frame is currently backed; online the
-			 * page.
-			 */
-			__online_page_set_limits(pg);
-			__online_page_increment_counters(pg);
-			__online_page_free(pg);
-		}
+		/* The page belongs to a different HAS. */
+		if (((unsigned long)pg < cur_start_pgp) ||
+		    ((unsigned long)pg >= cur_end_pgp))
+			continue;
+
+		hv_page_online_one(has, pg);
+		break;
 	}
 }
 
-static bool pfn_covered(unsigned long start_pfn, unsigned long pfn_cnt)
+static int pfn_covered(unsigned long start_pfn, unsigned long pfn_cnt)
 {
 	struct list_head *cur;
 	struct hv_hotadd_state *has;
+	struct hv_hotadd_gap *gap;
 	unsigned long residual, new_inc;
 
 	if (list_empty(&dm_device.ha_region_list))
@@ -714,8 +752,26 @@ static bool pfn_covered(unsigned long st
 		 * If the pfn range we are dealing with is not in the current
 		 * "hot add block", move on.
 		 */
-		if ((start_pfn >= has->end_pfn))
+		if (start_pfn < has->start_pfn || start_pfn >= has->end_pfn)
 			continue;
+
+		/*
+		 * If the current start pfn is not where the covered_end
+		 * is, create a gap and update covered_end_pfn.
+		 */
+		if (has->covered_end_pfn != start_pfn) {
+			gap = kzalloc(sizeof(struct hv_hotadd_gap), GFP_ATOMIC);
+			if (!gap)
+				return -ENOMEM;
+
+			INIT_LIST_HEAD(&gap->list);
+			gap->start_pfn = has->covered_end_pfn;
+			gap->end_pfn = start_pfn;
+			list_add_tail(&gap->list, &has->gap_list);
+
+			has->covered_end_pfn = start_pfn;
+		}
+
 		/*
 		 * If the current hot add-request extends beyond
 		 * our current limit; extend it.
@@ -732,19 +788,10 @@ static bool pfn_covered(unsigned long st
 			has->end_pfn += new_inc;
 		}
 
-		/*
-		 * If the current start pfn is not where the covered_end
-		 * is, update it.
-		 */
-
-		if (has->covered_end_pfn != start_pfn)
-			has->covered_end_pfn = start_pfn;
-
-		return true;
-
+		return 1;
 	}
 
-	return false;
+	return 0;
 }
 
 static unsigned long handle_pg_range(unsigned long pg_start,
@@ -768,7 +815,7 @@ static unsigned long handle_pg_range(uns
 		 * If the pfn range we are dealing with is not in the current
 		 * "hot add block", move on.
 		 */
-		if ((start_pfn >= has->end_pfn))
+		if (start_pfn < has->start_pfn || start_pfn >= has->end_pfn)
 			continue;
 
 		old_covered_state = has->covered_end_pfn;
@@ -783,6 +830,8 @@ static unsigned long handle_pg_range(uns
 			if (pgs_ol > pfn_cnt)
 				pgs_ol = pfn_cnt;
 
+			has->covered_end_pfn +=  pgs_ol;
+			pfn_cnt -= pgs_ol;
 			/*
 			 * Check if the corresponding memory block is already
 			 * online by checking its last previously backed page.
@@ -791,10 +840,8 @@ static unsigned long handle_pg_range(uns
 			 */
 			if (start_pfn > has->start_pfn &&
 			    !PageReserved(pfn_to_page(start_pfn - 1)))
-				hv_bring_pgs_online(start_pfn, pgs_ol);
+				hv_bring_pgs_online(has, start_pfn, pgs_ol);
 
-			has->covered_end_pfn +=  pgs_ol;
-			pfn_cnt -= pgs_ol;
 		}
 
 		if ((has->ha_end_pfn < has->end_pfn) && (pfn_cnt > 0)) {
@@ -832,13 +879,19 @@ static unsigned long process_hot_add(uns
 					unsigned long rg_size)
 {
 	struct hv_hotadd_state *ha_region = NULL;
+	int covered;
 
 	if (pfn_cnt == 0)
 		return 0;
 
-	if (!dm_device.host_specified_ha_region)
-		if (pfn_covered(pg_start, pfn_cnt))
+	if (!dm_device.host_specified_ha_region) {
+		covered = pfn_covered(pg_start, pfn_cnt);
+		if (covered < 0)
+			return 0;
+
+		if (covered)
 			goto do_pg_range;
+	}
 
 	/*
 	 * If the host has specified a hot-add range; deal with it first.
@@ -850,10 +903,12 @@ static unsigned long process_hot_add(uns
 			return 0;
 
 		INIT_LIST_HEAD(&ha_region->list);
+		INIT_LIST_HEAD(&ha_region->gap_list);
 
 		list_add_tail(&ha_region->list, &dm_device.ha_region_list);
 		ha_region->start_pfn = rg_start;
 		ha_region->ha_end_pfn = rg_start;
+		ha_region->covered_start_pfn = pg_start;
 		ha_region->covered_end_pfn = pg_start;
 		ha_region->end_pfn = rg_start + rg_size;
 	}
@@ -1581,6 +1636,7 @@ static int balloon_remove(struct hv_devi
 	struct hv_dynmem_device *dm = hv_get_drvdata(dev);
 	struct list_head *cur, *tmp;
 	struct hv_hotadd_state *has;
+	struct hv_hotadd_gap *gap, *tmp_gap;
 
 	if (dm->num_pages_ballooned != 0)
 		pr_warn("Ballooned pages: %d\n", dm->num_pages_ballooned);
@@ -1597,6 +1653,10 @@ static int balloon_remove(struct hv_devi
 #endif
 	list_for_each_safe(cur, tmp, &dm->ha_region_list) {
 		has = list_entry(cur, struct hv_hotadd_state, list);
+		list_for_each_entry_safe(gap, tmp_gap, &has->gap_list, list) {
+			list_del(&gap->list);
+			kfree(gap);
+		}
 		list_del(&has->list);
 		kfree(has);
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/hv/hv.c linux-libre-4.4.107-gnu/drivers/hv/hv.c
--- linux-libre-4.4-gnu/drivers/hv/hv.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/hv/hv.c	2017-12-20 04:05:01.000000000 -0500
@@ -219,7 +219,7 @@ int hv_init(void)
 	/* See if the hypercall page is already set */
 	rdmsrl(HV_X64_MSR_HYPERCALL, hypercall_msr.as_uint64);
 
-	virtaddr = __vmalloc(PAGE_SIZE, GFP_KERNEL, PAGE_KERNEL_EXEC);
+	virtaddr = __vmalloc(PAGE_SIZE, GFP_KERNEL, PAGE_KERNEL_RX);
 
 	if (!virtaddr)
 		goto cleanup;
@@ -274,7 +274,7 @@ cleanup:
  *
  * This routine is called normally during driver unloading or exiting.
  */
-void hv_cleanup(void)
+void hv_cleanup(bool crash)
 {
 	union hv_x64_msr_hypercall_contents hypercall_msr;
 
@@ -284,7 +284,8 @@ void hv_cleanup(void)
 	if (hv_context.hypercall_page) {
 		hypercall_msr.as_uint64 = 0;
 		wrmsrl(HV_X64_MSR_HYPERCALL, hypercall_msr.as_uint64);
-		vfree(hv_context.hypercall_page);
+		if (!crash)
+			vfree(hv_context.hypercall_page);
 		hv_context.hypercall_page = NULL;
 	}
 
@@ -293,13 +294,21 @@ void hv_cleanup(void)
 	 * Cleanup the TSC page based CS.
 	 */
 	if (ms_hyperv.features & HV_X64_MSR_REFERENCE_TSC_AVAILABLE) {
-		clocksource_change_rating(&hyperv_cs_tsc, 10);
-		clocksource_unregister(&hyperv_cs_tsc);
+		/*
+		 * Crash can happen in an interrupt context and unregistering
+		 * a clocksource is impossible and redundant in this case.
+		 */
+		if (!oops_in_progress) {
+			clocksource_change_rating(&hyperv_cs_tsc, 10);
+			clocksource_unregister(&hyperv_cs_tsc);
+		}
 
 		hypercall_msr.as_uint64 = 0;
 		wrmsrl(HV_X64_MSR_REFERENCE_TSC, hypercall_msr.as_uint64);
-		vfree(hv_context.tsc_page);
-		hv_context.tsc_page = NULL;
+		if (!crash) {
+			vfree(hv_context.tsc_page);
+			hv_context.tsc_page = NULL;
+		}
 	}
 #endif
 }
@@ -416,7 +425,7 @@ int hv_synic_alloc(void)
 		goto err;
 	}
 
-	for_each_online_cpu(cpu) {
+	for_each_present_cpu(cpu) {
 		hv_context.event_dpc[cpu] = kmalloc(size, GFP_ATOMIC);
 		if (hv_context.event_dpc[cpu] == NULL) {
 			pr_err("Unable to allocate event dpc\n");
@@ -455,6 +464,8 @@ int hv_synic_alloc(void)
 			pr_err("Unable to allocate post msg page\n");
 			goto err;
 		}
+
+		INIT_LIST_HEAD(&hv_context.percpu_list[cpu]);
 	}
 
 	return 0;
@@ -479,7 +490,7 @@ void hv_synic_free(void)
 	int cpu;
 
 	kfree(hv_context.hv_numa_map);
-	for_each_online_cpu(cpu)
+	for_each_present_cpu(cpu)
 		hv_synic_free_cpu(cpu);
 }
 
@@ -549,8 +560,6 @@ void hv_synic_init(void *arg)
 	rdmsrl(HV_X64_MSR_VP_INDEX, vp_index);
 	hv_context.vp_index[cpu] = (u32)vp_index;
 
-	INIT_LIST_HEAD(&hv_context.percpu_list[cpu]);
-
 	/*
 	 * Register the per-cpu clockevent source.
 	 */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/hv/hv_fcopy.c linux-libre-4.4.107-gnu/drivers/hv/hv_fcopy.c
--- linux-libre-4.4-gnu/drivers/hv/hv_fcopy.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/hv/hv_fcopy.c	2017-12-20 04:05:01.000000000 -0500
@@ -51,7 +51,6 @@ static struct {
 	struct hv_fcopy_hdr  *fcopy_msg; /* current message */
 	struct vmbus_channel *recv_channel; /* chn we got the request */
 	u64 recv_req_id; /* request ID. */
-	void *fcopy_context; /* for the channel callback */
 } fcopy_transaction;
 
 static void fcopy_respond_to_host(int error);
@@ -62,11 +61,19 @@ static DECLARE_WORK(fcopy_send_work, fco
 static const char fcopy_devname[] = "vmbus/hv_fcopy";
 static u8 *recv_buffer;
 static struct hvutil_transport *hvt;
+static struct completion release_event;
 /*
  * This state maintains the version number registered by the daemon.
  */
 static int dm_reg_value;
 
+static void fcopy_poll_wrapper(void *channel)
+{
+	/* Transaction is finished, reset the state here to avoid races. */
+	fcopy_transaction.state = HVUTIL_READY;
+	hv_fcopy_onchannelcallback(channel);
+}
+
 static void fcopy_timeout_func(struct work_struct *dummy)
 {
 	/*
@@ -74,13 +81,7 @@ static void fcopy_timeout_func(struct wo
 	 * process the pending transaction.
 	 */
 	fcopy_respond_to_host(HV_E_FAIL);
-
-	/* Transaction is finished, reset the state. */
-	if (fcopy_transaction.state > HVUTIL_READY)
-		fcopy_transaction.state = HVUTIL_READY;
-
-	hv_poll_channel(fcopy_transaction.fcopy_context,
-			hv_fcopy_onchannelcallback);
+	hv_poll_channel(fcopy_transaction.recv_channel, fcopy_poll_wrapper);
 }
 
 static int fcopy_handle_handshake(u32 version)
@@ -108,9 +109,7 @@ static int fcopy_handle_handshake(u32 ve
 		return -EINVAL;
 	}
 	pr_debug("FCP: userspace daemon ver. %d registered\n", version);
-	fcopy_transaction.state = HVUTIL_READY;
-	hv_poll_channel(fcopy_transaction.fcopy_context,
-			hv_fcopy_onchannelcallback);
+	hv_poll_channel(fcopy_transaction.recv_channel, fcopy_poll_wrapper);
 	return 0;
 }
 
@@ -156,6 +155,10 @@ static void fcopy_send_data(struct work_
 		out_src = smsg_out;
 		break;
 
+	case WRITE_TO_FILE:
+		out_src = fcopy_transaction.fcopy_msg;
+		out_len = sizeof(struct hv_do_fcopy);
+		break;
 	default:
 		out_src = fcopy_transaction.fcopy_msg;
 		out_len = fcopy_transaction.recv_len;
@@ -227,15 +230,8 @@ void hv_fcopy_onchannelcallback(void *co
 	int util_fw_version;
 	int fcopy_srv_version;
 
-	if (fcopy_transaction.state > HVUTIL_READY) {
-		/*
-		 * We will defer processing this callback once
-		 * the current transaction is complete.
-		 */
-		fcopy_transaction.fcopy_context = context;
+	if (fcopy_transaction.state > HVUTIL_READY)
 		return;
-	}
-	fcopy_transaction.fcopy_context = NULL;
 
 	vmbus_recvpacket(channel, recv_buffer, PAGE_SIZE * 2, &recvlen,
 			 &requestid);
@@ -275,7 +271,8 @@ void hv_fcopy_onchannelcallback(void *co
 		 * Send the information to the user-level daemon.
 		 */
 		schedule_work(&fcopy_send_work);
-		schedule_delayed_work(&fcopy_timeout_work, 5*HZ);
+		schedule_delayed_work(&fcopy_timeout_work,
+				      HV_UTIL_TIMEOUT * HZ);
 		return;
 	}
 	icmsghdr->icflags = ICMSGHDRFLAG_TRANSACTION | ICMSGHDRFLAG_RESPONSE;
@@ -304,9 +301,8 @@ static int fcopy_on_msg(void *msg, int l
 	if (cancel_delayed_work_sync(&fcopy_timeout_work)) {
 		fcopy_transaction.state = HVUTIL_USERSPACE_RECV;
 		fcopy_respond_to_host(*val);
-		fcopy_transaction.state = HVUTIL_READY;
-		hv_poll_channel(fcopy_transaction.fcopy_context,
-				hv_fcopy_onchannelcallback);
+		hv_poll_channel(fcopy_transaction.recv_channel,
+				fcopy_poll_wrapper);
 	}
 
 	return 0;
@@ -321,12 +317,14 @@ static void fcopy_on_reset(void)
 
 	if (cancel_delayed_work_sync(&fcopy_timeout_work))
 		fcopy_respond_to_host(HV_E_FAIL);
+	complete(&release_event);
 }
 
 int hv_fcopy_init(struct hv_util_service *srv)
 {
 	recv_buffer = srv->recv_buffer;
 
+	init_completion(&release_event);
 	/*
 	 * When this driver loads, the user level daemon that
 	 * processes the host requests may not yet be running.
@@ -348,4 +346,5 @@ void hv_fcopy_deinit(void)
 	fcopy_transaction.state = HVUTIL_DEVICE_DYING;
 	cancel_delayed_work_sync(&fcopy_timeout_work);
 	hvutil_transport_destroy(hvt);
+	wait_for_completion(&release_event);
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/hv/hv_kvp.c linux-libre-4.4.107-gnu/drivers/hv/hv_kvp.c
--- linux-libre-4.4-gnu/drivers/hv/hv_kvp.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/hv/hv_kvp.c	2017-12-20 04:05:01.000000000 -0500
@@ -66,7 +66,6 @@ static struct {
 	struct hv_kvp_msg  *kvp_msg; /* current message */
 	struct vmbus_channel *recv_channel; /* chn we got the request */
 	u64 recv_req_id; /* request ID. */
-	void *kvp_context; /* for the channel callback */
 } kvp_transaction;
 
 /*
@@ -87,6 +86,7 @@ static DECLARE_WORK(kvp_sendkey_work, kv
 static const char kvp_devname[] = "vmbus/hv_kvp";
 static u8 *recv_buffer;
 static struct hvutil_transport *hvt;
+static struct completion release_event;
 /*
  * Register the kernel component with the user-level daemon.
  * As part of this registration, pass the LIC version number.
@@ -94,6 +94,13 @@ static struct hvutil_transport *hvt;
  */
 #define HV_DRV_VERSION           "3.1"
 
+static void kvp_poll_wrapper(void *channel)
+{
+	/* Transaction is finished, reset the state here to avoid races. */
+	kvp_transaction.state = HVUTIL_READY;
+	hv_kvp_onchannelcallback(channel);
+}
+
 static void
 kvp_register(int reg_value)
 {
@@ -121,12 +128,7 @@ static void kvp_timeout_func(struct work
 	 */
 	kvp_respond_to_host(NULL, HV_E_FAIL);
 
-	/* Transaction is finished, reset the state. */
-	if (kvp_transaction.state > HVUTIL_READY)
-		kvp_transaction.state = HVUTIL_READY;
-
-	hv_poll_channel(kvp_transaction.kvp_context,
-			hv_kvp_onchannelcallback);
+	hv_poll_channel(kvp_transaction.recv_channel, kvp_poll_wrapper);
 }
 
 static int kvp_handle_handshake(struct hv_kvp_msg *msg)
@@ -218,9 +220,7 @@ static int kvp_on_msg(void *msg, int len
 	 */
 	if (cancel_delayed_work_sync(&kvp_timeout_work)) {
 		kvp_respond_to_host(message, error);
-		kvp_transaction.state = HVUTIL_READY;
-		hv_poll_channel(kvp_transaction.kvp_context,
-				hv_kvp_onchannelcallback);
+		hv_poll_channel(kvp_transaction.recv_channel, kvp_poll_wrapper);
 	}
 
 	return 0;
@@ -596,15 +596,8 @@ void hv_kvp_onchannelcallback(void *cont
 	int util_fw_version;
 	int kvp_srv_version;
 
-	if (kvp_transaction.state > HVUTIL_READY) {
-		/*
-		 * We will defer processing this callback once
-		 * the current transaction is complete.
-		 */
-		kvp_transaction.kvp_context = context;
+	if (kvp_transaction.state > HVUTIL_READY)
 		return;
-	}
-	kvp_transaction.kvp_context = NULL;
 
 	vmbus_recvpacket(channel, recv_buffer, PAGE_SIZE * 4, &recvlen,
 			 &requestid);
@@ -668,7 +661,8 @@ void hv_kvp_onchannelcallback(void *cont
 			 * user-mode not responding.
 			 */
 			schedule_work(&kvp_sendkey_work);
-			schedule_delayed_work(&kvp_timeout_work, 5*HZ);
+			schedule_delayed_work(&kvp_timeout_work,
+					      HV_UTIL_TIMEOUT * HZ);
 
 			return;
 
@@ -689,6 +683,7 @@ static void kvp_on_reset(void)
 	if (cancel_delayed_work_sync(&kvp_timeout_work))
 		kvp_respond_to_host(NULL, HV_E_FAIL);
 	kvp_transaction.state = HVUTIL_DEVICE_INIT;
+	complete(&release_event);
 }
 
 int
@@ -696,6 +691,7 @@ hv_kvp_init(struct hv_util_service *srv)
 {
 	recv_buffer = srv->recv_buffer;
 
+	init_completion(&release_event);
 	/*
 	 * When this driver loads, the user level daemon that
 	 * processes the host requests may not yet be running.
@@ -718,4 +714,5 @@ void hv_kvp_deinit(void)
 	cancel_delayed_work_sync(&kvp_timeout_work);
 	cancel_work_sync(&kvp_sendkey_work);
 	hvutil_transport_destroy(hvt);
+	wait_for_completion(&release_event);
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/hv/hv_snapshot.c linux-libre-4.4.107-gnu/drivers/hv/hv_snapshot.c
--- linux-libre-4.4-gnu/drivers/hv/hv_snapshot.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/hv/hv_snapshot.c	2017-12-20 04:05:01.000000000 -0500
@@ -53,7 +53,6 @@ static struct {
 	struct vmbus_channel *recv_channel; /* chn we got the request */
 	u64 recv_req_id; /* request ID. */
 	struct hv_vss_msg  *msg; /* current message */
-	void *vss_context; /* for the channel callback */
 } vss_transaction;
 
 
@@ -67,6 +66,7 @@ static int dm_reg_value;
 static const char vss_devname[] = "vmbus/hv_vss";
 static __u8 *recv_buffer;
 static struct hvutil_transport *hvt;
+static struct completion release_event;
 
 static void vss_send_op(struct work_struct *dummy);
 static void vss_timeout_func(struct work_struct *dummy);
@@ -74,6 +74,13 @@ static void vss_timeout_func(struct work
 static DECLARE_DELAYED_WORK(vss_timeout_work, vss_timeout_func);
 static DECLARE_WORK(vss_send_op_work, vss_send_op);
 
+static void vss_poll_wrapper(void *channel)
+{
+	/* Transaction is finished, reset the state here to avoid races. */
+	vss_transaction.state = HVUTIL_READY;
+	hv_vss_onchannelcallback(channel);
+}
+
 /*
  * Callback when data is received from user mode.
  */
@@ -86,12 +93,7 @@ static void vss_timeout_func(struct work
 	pr_warn("VSS: timeout waiting for daemon to reply\n");
 	vss_respond_to_host(HV_E_FAIL);
 
-	/* Transaction is finished, reset the state. */
-	if (vss_transaction.state > HVUTIL_READY)
-		vss_transaction.state = HVUTIL_READY;
-
-	hv_poll_channel(vss_transaction.vss_context,
-			hv_vss_onchannelcallback);
+	hv_poll_channel(vss_transaction.recv_channel, vss_poll_wrapper);
 }
 
 static int vss_handle_handshake(struct hv_vss_msg *vss_msg)
@@ -138,9 +140,8 @@ static int vss_on_msg(void *msg, int len
 		if (cancel_delayed_work_sync(&vss_timeout_work)) {
 			vss_respond_to_host(vss_msg->error);
 			/* Transaction is finished, reset the state. */
-			vss_transaction.state = HVUTIL_READY;
-			hv_poll_channel(vss_transaction.vss_context,
-					hv_vss_onchannelcallback);
+			hv_poll_channel(vss_transaction.recv_channel,
+					vss_poll_wrapper);
 		}
 	} else {
 		/* This is a spurious call! */
@@ -238,15 +239,8 @@ void hv_vss_onchannelcallback(void *cont
 	struct icmsg_hdr *icmsghdrp;
 	struct icmsg_negotiate *negop = NULL;
 
-	if (vss_transaction.state > HVUTIL_READY) {
-		/*
-		 * We will defer processing this callback once
-		 * the current transaction is complete.
-		 */
-		vss_transaction.vss_context = context;
+	if (vss_transaction.state > HVUTIL_READY)
 		return;
-	}
-	vss_transaction.vss_context = NULL;
 
 	vmbus_recvpacket(channel, recv_buffer, PAGE_SIZE * 2, &recvlen,
 			 &requestid);
@@ -333,11 +327,18 @@ static void vss_on_reset(void)
 	if (cancel_delayed_work_sync(&vss_timeout_work))
 		vss_respond_to_host(HV_E_FAIL);
 	vss_transaction.state = HVUTIL_DEVICE_INIT;
+	complete(&release_event);
 }
 
 int
 hv_vss_init(struct hv_util_service *srv)
 {
+	init_completion(&release_event);
+	if (vmbus_proto_version < VERSION_WIN8_1) {
+		pr_warn("Integration service 'Backup (volume snapshot)'"
+			" not supported on this host version.\n");
+		return -ENOTSUPP;
+	}
 	recv_buffer = srv->recv_buffer;
 
 	/*
@@ -362,4 +363,5 @@ void hv_vss_deinit(void)
 	cancel_delayed_work_sync(&vss_timeout_work);
 	cancel_work_sync(&vss_send_op_work);
 	hvutil_transport_destroy(hvt);
+	wait_for_completion(&release_event);
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/hv/hv_util.c linux-libre-4.4.107-gnu/drivers/hv/hv_util.c
--- linux-libre-4.4-gnu/drivers/hv/hv_util.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/hv/hv_util.c	2017-12-20 04:05:01.000000000 -0500
@@ -283,10 +283,14 @@ static void heartbeat_onchannelcallback(
 	u8 *hbeat_txf_buf = util_heartbeat.recv_buffer;
 	struct icmsg_negotiate *negop = NULL;
 
-	vmbus_recvpacket(channel, hbeat_txf_buf,
-			 PAGE_SIZE, &recvlen, &requestid);
+	while (1) {
+
+		vmbus_recvpacket(channel, hbeat_txf_buf,
+				 PAGE_SIZE, &recvlen, &requestid);
+
+		if (!recvlen)
+			break;
 
-	if (recvlen > 0) {
 		icmsghdrp = (struct icmsg_hdr *)&hbeat_txf_buf[
 				sizeof(struct vmbuspipe_hdr)];
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/hv/hv_utils_transport.c linux-libre-4.4.107-gnu/drivers/hv/hv_utils_transport.c
--- linux-libre-4.4-gnu/drivers/hv/hv_utils_transport.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/hv/hv_utils_transport.c	2017-12-20 04:05:01.000000000 -0500
@@ -204,9 +204,12 @@ int hvutil_transport_send(struct hvutil_
 		goto out_unlock;
 	}
 	hvt->outmsg = kzalloc(len, GFP_KERNEL);
-	memcpy(hvt->outmsg, msg, len);
-	hvt->outmsg_len = len;
-	wake_up_interruptible(&hvt->outmsg_q);
+	if (hvt->outmsg) {
+		memcpy(hvt->outmsg, msg, len);
+		hvt->outmsg_len = len;
+		wake_up_interruptible(&hvt->outmsg_q);
+	} else
+		ret = -ENOMEM;
 out_unlock:
 	mutex_unlock(&hvt->outmsg_lock);
 	return ret;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/hv/hyperv_vmbus.h linux-libre-4.4.107-gnu/drivers/hv/hyperv_vmbus.h
--- linux-libre-4.4-gnu/drivers/hv/hyperv_vmbus.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/hv/hyperv_vmbus.h	2017-12-20 04:05:01.000000000 -0500
@@ -31,6 +31,11 @@
 #include <linux/hyperv.h>
 
 /*
+ * Timeout for services such as KVP and fcopy.
+ */
+#define HV_UTIL_TIMEOUT 30
+
+/*
  * The below CPUID leaves are present if VersionAndFeatures.HypervisorPresent
  * is set by CPUID(HVCPUID_VERSION_FEATURES).
  */
@@ -576,7 +581,7 @@ struct hv_ring_buffer_debug_info {
 
 extern int hv_init(void);
 
-extern void hv_cleanup(void);
+extern void hv_cleanup(bool crash);
 
 extern int hv_post_message(union hv_connection_id connection_id,
 			 enum hv_message_type message_type,
@@ -759,11 +764,7 @@ static inline void hv_poll_channel(struc
 	if (!channel)
 		return;
 
-	if (channel->target_cpu != smp_processor_id())
-		smp_call_function_single(channel->target_cpu,
-					 cb, channel, true);
-	else
-		cb(channel);
+	smp_call_function_single(channel->target_cpu, cb, channel, true);
 }
 
 enum hvutil_device_state {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/hv/vmbus_drv.c linux-libre-4.4.107-gnu/drivers/hv/vmbus_drv.c
--- linux-libre-4.4-gnu/drivers/hv/vmbus_drv.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/hv/vmbus_drv.c	2017-12-20 04:05:01.000000000 -0500
@@ -41,6 +41,7 @@
 #include <linux/ptrace.h>
 #include <linux/screen_info.h>
 #include <linux/kdebug.h>
+#include <linux/random.h>
 #include "hyperv_vmbus.h"
 
 static struct acpi_device  *hv_acpi_dev;
@@ -104,6 +105,7 @@ static struct notifier_block hyperv_pani
 };
 
 struct resource *hyperv_mmio;
+DEFINE_SEMAPHORE(hyperv_mmio_lock);
 
 static int vmbus_exists(void)
 {
@@ -602,23 +604,11 @@ static int vmbus_remove(struct device *c
 {
 	struct hv_driver *drv;
 	struct hv_device *dev = device_to_hv_device(child_device);
-	u32 relid = dev->channel->offermsg.child_relid;
 
 	if (child_device->driver) {
 		drv = drv_to_hv_drv(child_device->driver);
 		if (drv->remove)
 			drv->remove(dev);
-		else {
-			hv_process_channel_removal(dev->channel, relid);
-			pr_err("remove not set for driver %s\n",
-				dev_name(child_device));
-		}
-	} else {
-		/*
-		 * We don't have a driver for this device; deal with the
-		 * rescind message by removing the channel.
-		 */
-		hv_process_channel_removal(dev->channel, relid);
 	}
 
 	return 0;
@@ -653,7 +643,10 @@ static void vmbus_shutdown(struct device
 static void vmbus_device_release(struct device *device)
 {
 	struct hv_device *hv_dev = device_to_hv_device(device);
+	struct vmbus_channel *channel = hv_dev->channel;
 
+	hv_process_channel_removal(channel,
+				   channel->offermsg.child_relid);
 	kfree(hv_dev);
 
 }
@@ -826,6 +819,8 @@ static void vmbus_isr(void)
 		else
 			tasklet_schedule(&msg_dpc);
 	}
+
+	add_interrupt_randomness(HYPERVISOR_CALLBACK_VECTOR, 0);
 }
 
 
@@ -867,7 +862,7 @@ static int vmbus_bus_init(int irq)
 	on_each_cpu(hv_synic_init, NULL, 1);
 	ret = vmbus_connect();
 	if (ret)
-		goto err_alloc;
+		goto err_connect;
 
 	if (vmbus_proto_version > VERSION_WIN7)
 		cpu_hotplug_disable();
@@ -885,6 +880,8 @@ static int vmbus_bus_init(int irq)
 
 	return 0;
 
+err_connect:
+	on_each_cpu(hv_synic_cleanup, NULL, 1);
 err_alloc:
 	hv_synic_free();
 	hv_remove_vmbus_irq();
@@ -892,7 +889,7 @@ err_alloc:
 	bus_unregister(&hv_bus);
 
 err_cleanup:
-	hv_cleanup();
+	hv_cleanup(false);
 
 	return ret;
 }
@@ -1144,7 +1141,10 @@ int vmbus_allocate_mmio(struct resource
 	resource_size_t range_min, range_max, start, local_min, local_max;
 	const char *dev_n = dev_name(&device_obj->device);
 	u32 fb_end = screen_info.lfb_base + (screen_info.lfb_size << 1);
-	int i;
+	int i, retval;
+
+	retval = -ENXIO;
+	down(&hyperv_mmio_lock);
 
 	for (iter = hyperv_mmio; iter; iter = iter->sibling) {
 		if ((iter->start >= max) || (iter->end <= min))
@@ -1181,13 +1181,17 @@ int vmbus_allocate_mmio(struct resource
 			for (; start + size - 1 <= local_max; start += align) {
 				*new = request_mem_region_exclusive(start, size,
 								    dev_n);
-				if (*new)
-					return 0;
+				if (*new) {
+					retval = 0;
+					goto exit;
+				}
 			}
 		}
 	}
 
-	return -ENXIO;
+exit:
+	up(&hyperv_mmio_lock);
+	return retval;
 }
 EXPORT_SYMBOL_GPL(vmbus_allocate_mmio);
 
@@ -1250,7 +1254,7 @@ static void hv_kexec_handler(void)
 	vmbus_initiate_unload();
 	for_each_online_cpu(cpu)
 		smp_call_function_single(cpu, hv_synic_cleanup, NULL, 1);
-	hv_cleanup();
+	hv_cleanup(false);
 };
 
 static void hv_crash_handler(struct pt_regs *regs)
@@ -1262,7 +1266,7 @@ static void hv_crash_handler(struct pt_r
 	 * for kdump.
 	 */
 	hv_synic_cleanup(NULL);
-	hv_cleanup();
+	hv_cleanup(true);
 };
 
 static int __init hv_acpi_init(void)
@@ -1326,7 +1330,7 @@ static void __exit vmbus_exit(void)
 						 &hyperv_panic_block);
 	}
 	bus_unregister(&hv_bus);
-	hv_cleanup();
+	hv_cleanup(false);
 	for_each_online_cpu(cpu) {
 		tasklet_kill(hv_context.event_dpc[cpu]);
 		smp_call_function_single(cpu, hv_synic_cleanup, NULL, 1);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/hwmon/ads1015.c linux-libre-4.4.107-gnu/drivers/hwmon/ads1015.c
--- linux-libre-4.4-gnu/drivers/hwmon/ads1015.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/hwmon/ads1015.c	2017-12-20 04:05:01.000000000 -0500
@@ -126,7 +126,7 @@ static int ads1015_reg_to_mv(struct i2c_
 	struct ads1015_data *data = i2c_get_clientdata(client);
 	unsigned int pga = data->channel_data[channel].pga;
 	int fullscale = fullscale_table[pga];
-	const unsigned mask = data->id == ads1115 ? 0x7fff : 0x7ff0;
+	const int mask = data->id == ads1115 ? 0x7fff : 0x7ff0;
 
 	return DIV_ROUND_CLOSEST(reg * fullscale, mask);
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/hwmon/ads7828.c linux-libre-4.4.107-gnu/drivers/hwmon/ads7828.c
--- linux-libre-4.4-gnu/drivers/hwmon/ads7828.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/hwmon/ads7828.c	2017-12-20 04:05:01.000000000 -0500
@@ -120,6 +120,7 @@ static int ads7828_probe(struct i2c_clie
 	unsigned int vref_mv = ADS7828_INT_VREF_MV;
 	bool diff_input = false;
 	bool ext_vref = false;
+	unsigned int regval;
 
 	data = devm_kzalloc(dev, sizeof(struct ads7828_data), GFP_KERNEL);
 	if (!data)
@@ -154,6 +155,15 @@ static int ads7828_probe(struct i2c_clie
 	if (!diff_input)
 		data->cmd_byte |= ADS7828_CMD_SD_SE;
 
+	/*
+	 * Datasheet specifies internal reference voltage is disabled by
+	 * default. The internal reference voltage needs to be enabled and
+	 * voltage needs to settle before getting valid ADC data. So perform a
+	 * dummy read to enable the internal reference voltage.
+	 */
+	if (!ext_vref)
+		regmap_read(data->regmap, data->cmd_byte, &regval);
+
 	hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
 							   data,
 							   ads7828_groups);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/hwmon/adt7411.c linux-libre-4.4.107-gnu/drivers/hwmon/adt7411.c
--- linux-libre-4.4-gnu/drivers/hwmon/adt7411.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/hwmon/adt7411.c	2017-12-20 04:05:01.000000000 -0500
@@ -30,6 +30,7 @@
 
 #define ADT7411_REG_CFG1			0x18
 #define ADT7411_CFG1_START_MONITOR		(1 << 0)
+#define ADT7411_CFG1_RESERVED_BIT3		(1 << 3)
 
 #define ADT7411_REG_CFG2			0x19
 #define ADT7411_CFG2_DISABLE_AVG		(1 << 5)
@@ -296,8 +297,10 @@ static int adt7411_probe(struct i2c_clie
 	mutex_init(&data->device_lock);
 	mutex_init(&data->update_lock);
 
+	/* According to the datasheet, we must only write 1 to bit 3 */
 	ret = adt7411_modify_bit(client, ADT7411_REG_CFG1,
-				 ADT7411_CFG1_START_MONITOR, 1);
+				 ADT7411_CFG1_RESERVED_BIT3
+				 | ADT7411_CFG1_START_MONITOR, 1);
 	if (ret < 0)
 		return ret;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/hwmon/amc6821.c linux-libre-4.4.107-gnu/drivers/hwmon/amc6821.c
--- linux-libre-4.4-gnu/drivers/hwmon/amc6821.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/hwmon/amc6821.c	2017-12-20 04:05:01.000000000 -0500
@@ -188,8 +188,8 @@ static struct amc6821_data *amc6821_upda
 			!data->valid) {
 
 		for (i = 0; i < TEMP_IDX_LEN; i++)
-			data->temp[i] = i2c_smbus_read_byte_data(client,
-				temp_reg[i]);
+			data->temp[i] = (int8_t)i2c_smbus_read_byte_data(
+				client, temp_reg[i]);
 
 		data->stat1 = i2c_smbus_read_byte_data(client,
 			AMC6821_REG_STAT1);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/hwmon/dell-smm-hwmon.c linux-libre-4.4.107-gnu/drivers/hwmon/dell-smm-hwmon.c
--- linux-libre-4.4-gnu/drivers/hwmon/dell-smm-hwmon.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/hwmon/dell-smm-hwmon.c	2017-12-20 04:05:01.000000000 -0500
@@ -66,11 +66,13 @@
 
 static DEFINE_MUTEX(i8k_mutex);
 static char bios_version[4];
+static char bios_machineid[16];
 static struct device *i8k_hwmon_dev;
 static u32 i8k_hwmon_flags;
 static uint i8k_fan_mult = I8K_FAN_MULT;
 static uint i8k_pwm_mult;
 static uint i8k_fan_max = I8K_FAN_HIGH;
+static bool disallow_fan_type_call;
 
 #define I8K_HWMON_HAVE_TEMP1	(1 << 0)
 #define I8K_HWMON_HAVE_TEMP2	(1 << 1)
@@ -94,13 +96,13 @@ module_param(ignore_dmi, bool, 0);
 MODULE_PARM_DESC(ignore_dmi, "Continue probing hardware even if DMI data does not match");
 
 #if IS_ENABLED(CONFIG_I8K)
-static bool restricted;
+static bool restricted = true;
 module_param(restricted, bool, 0);
-MODULE_PARM_DESC(restricted, "Allow fan control if SYS_ADMIN capability set");
+MODULE_PARM_DESC(restricted, "Restrict fan control and serial number to CAP_SYS_ADMIN (default: 1)");
 
 static bool power_status;
 module_param(power_status, bool, 0600);
-MODULE_PARM_DESC(power_status, "Report power status in /proc/i8k");
+MODULE_PARM_DESC(power_status, "Report power status in /proc/i8k (default: 0)");
 #endif
 
 static uint fan_mult;
@@ -235,14 +237,28 @@ static int i8k_get_fan_speed(int fan)
 /*
  * Read the fan type.
  */
-static int i8k_get_fan_type(int fan)
+static int _i8k_get_fan_type(int fan)
 {
 	struct smm_regs regs = { .eax = I8K_SMM_GET_FAN_TYPE, };
 
+	if (disallow_fan_type_call)
+		return -EINVAL;
+
 	regs.ebx = fan & 0xff;
 	return i8k_smm(&regs) ? : regs.eax & 0xff;
 }
 
+static int i8k_get_fan_type(int fan)
+{
+	/* I8K_SMM_GET_FAN_TYPE SMM call is expensive, so cache values */
+	static int types[2] = { INT_MIN, INT_MIN };
+
+	if (types[fan] == INT_MIN)
+		types[fan] = _i8k_get_fan_type(fan);
+
+	return types[fan];
+}
+
 /*
  * Read the fan nominal rpm for specific fan speed.
  */
@@ -392,9 +408,11 @@ i8k_ioctl_unlocked(struct file *fp, unsi
 		break;
 
 	case I8K_MACHINE_ID:
-		memset(buff, 0, 16);
-		strlcpy(buff, i8k_get_dmi_data(DMI_PRODUCT_SERIAL),
-			sizeof(buff));
+		if (restricted && !capable(CAP_SYS_ADMIN))
+			return -EPERM;
+
+		memset(buff, 0, sizeof(buff));
+		strlcpy(buff, bios_machineid, sizeof(buff));
 		break;
 
 	case I8K_FN_STATUS:
@@ -511,7 +529,7 @@ static int i8k_proc_show(struct seq_file
 	seq_printf(seq, "%s %s %s %d %d %d %d %d %d %d\n",
 		   I8K_PROC_FMT,
 		   bios_version,
-		   i8k_get_dmi_data(DMI_PRODUCT_SERIAL),
+		   (restricted && !capable(CAP_SYS_ADMIN)) ? "-1" : bios_machineid,
 		   cpu_temp,
 		   left_fan, right_fan, left_speed, right_speed,
 		   ac_power, fn_key);
@@ -718,6 +736,9 @@ static struct attribute *i8k_attrs[] = {
 static umode_t i8k_is_visible(struct kobject *kobj, struct attribute *attr,
 			      int index)
 {
+	if (disallow_fan_type_call &&
+	    (index == 9 || index == 12))
+		return 0;
 	if (index >= 0 && index <= 1 &&
 	    !(i8k_hwmon_flags & I8K_HWMON_HAVE_TEMP1))
 		return 0;
@@ -767,13 +788,17 @@ static int __init i8k_init_hwmon(void)
 	if (err >= 0)
 		i8k_hwmon_flags |= I8K_HWMON_HAVE_TEMP4;
 
-	/* First fan attributes, if fan type is OK */
-	err = i8k_get_fan_type(0);
+	/* First fan attributes, if fan status or type is OK */
+	err = i8k_get_fan_status(0);
+	if (err < 0)
+		err = i8k_get_fan_type(0);
 	if (err >= 0)
 		i8k_hwmon_flags |= I8K_HWMON_HAVE_FAN1;
 
-	/* Second fan attributes, if fan type is OK */
-	err = i8k_get_fan_type(1);
+	/* Second fan attributes, if fan status or type is OK */
+	err = i8k_get_fan_status(1);
+	if (err < 0)
+		err = i8k_get_fan_type(1);
 	if (err >= 0)
 		i8k_hwmon_flags |= I8K_HWMON_HAVE_FAN2;
 
@@ -929,18 +954,34 @@ static struct dmi_system_id i8k_dmi_tabl
 
 MODULE_DEVICE_TABLE(dmi, i8k_dmi_table);
 
-static struct dmi_system_id i8k_blacklist_dmi_table[] __initdata = {
+/*
+ * On some machines once I8K_SMM_GET_FAN_TYPE is issued then CPU fan speed
+ * randomly going up and down due to bug in Dell SMM or BIOS. Here is blacklist
+ * of affected Dell machines for which we disallow I8K_SMM_GET_FAN_TYPE call.
+ * See bug: https://bugzilla.kernel.org/show_bug.cgi?id=100121
+ */
+static struct dmi_system_id i8k_blacklist_fan_type_dmi_table[] __initdata = {
+	{
+		.ident = "Dell Studio XPS 8000",
+		.matches = {
+			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Studio XPS 8000"),
+		},
+	},
 	{
-		/*
-		 * CPU fan speed going up and down on Dell Studio XPS 8100
-		 * for unknown reasons.
-		 */
 		.ident = "Dell Studio XPS 8100",
 		.matches = {
 			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Studio XPS 8100"),
 		},
 	},
+	{
+		.ident = "Dell Inspiron 580",
+		.matches = {
+			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Inspiron 580 "),
+		},
+	},
 	{ }
 };
 
@@ -955,8 +996,7 @@ static int __init i8k_probe(void)
 	/*
 	 * Get DMI information
 	 */
-	if (!dmi_check_system(i8k_dmi_table) ||
-	    dmi_check_system(i8k_blacklist_dmi_table)) {
+	if (!dmi_check_system(i8k_dmi_table)) {
 		if (!ignore_dmi && !force)
 			return -ENODEV;
 
@@ -967,8 +1007,13 @@ static int __init i8k_probe(void)
 			i8k_get_dmi_data(DMI_BIOS_VERSION));
 	}
 
+	if (dmi_check_system(i8k_blacklist_fan_type_dmi_table))
+		disallow_fan_type_call = true;
+
 	strlcpy(bios_version, i8k_get_dmi_data(DMI_BIOS_VERSION),
 		sizeof(bios_version));
+	strlcpy(bios_machineid, i8k_get_dmi_data(DMI_PRODUCT_SERIAL),
+		sizeof(bios_machineid));
 
 	/*
 	 * Get SMM Dell signature
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/hwmon/ds620.c linux-libre-4.4.107-gnu/drivers/hwmon/ds620.c
--- linux-libre-4.4-gnu/drivers/hwmon/ds620.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/hwmon/ds620.c	2017-12-20 04:05:01.000000000 -0500
@@ -166,7 +166,7 @@ static ssize_t set_temp(struct device *d
 	if (res)
 		return res;
 
-	val = (val * 10 / 625) * 8;
+	val = (clamp_val(val, -128000, 128000) * 10 / 625) * 8;
 
 	mutex_lock(&data->update_lock);
 	data->temp[attr->index] = val;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/hwmon/g762.c linux-libre-4.4.107-gnu/drivers/hwmon/g762.c
--- linux-libre-4.4-gnu/drivers/hwmon/g762.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/hwmon/g762.c	2017-12-20 04:05:01.000000000 -0500
@@ -193,14 +193,17 @@ static inline unsigned int rpm_from_cnt(
  * Convert fan RPM value from sysfs into count value for fan controller
  * register (FAN_SET_CNT).
  */
-static inline unsigned char cnt_from_rpm(u32 rpm, u32 clk_freq, u16 p,
+static inline unsigned char cnt_from_rpm(unsigned long rpm, u32 clk_freq, u16 p,
 					 u8 clk_div, u8 gear_mult)
 {
-	if (!rpm)         /* to stop the fan, set cnt to 255 */
+	unsigned long f1 = clk_freq * 30 * gear_mult;
+	unsigned long f2 = p * clk_div;
+
+	if (!rpm)	/* to stop the fan, set cnt to 255 */
 		return 0xff;
 
-	return clamp_val(((clk_freq * 30 * gear_mult) / (rpm * p * clk_div)),
-			 0, 255);
+	rpm = clamp_val(rpm, f1 / (255 * f2), ULONG_MAX / f2);
+	return DIV_ROUND_CLOSEST(f1, rpm * f2);
 }
 
 /* helper to grab and cache data, at most one time per second */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/hwmon/gl520sm.c linux-libre-4.4.107-gnu/drivers/hwmon/gl520sm.c
--- linux-libre-4.4-gnu/drivers/hwmon/gl520sm.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/hwmon/gl520sm.c	2017-12-20 04:05:01.000000000 -0500
@@ -208,11 +208,13 @@ static ssize_t get_cpu_vid(struct device
 }
 static DEVICE_ATTR(cpu0_vid, S_IRUGO, get_cpu_vid, NULL);
 
-#define VDD_FROM_REG(val) (((val) * 95 + 2) / 4)
-#define VDD_TO_REG(val) clamp_val((((val) * 4 + 47) / 95), 0, 255)
+#define VDD_FROM_REG(val)	DIV_ROUND_CLOSEST((val) * 95, 4)
+#define VDD_CLAMP(val)		clamp_val(val, 0, 255 * 95 / 4)
+#define VDD_TO_REG(val)		DIV_ROUND_CLOSEST(VDD_CLAMP(val) * 4, 95)
 
-#define IN_FROM_REG(val) ((val) * 19)
-#define IN_TO_REG(val) clamp_val((((val) + 9) / 19), 0, 255)
+#define IN_FROM_REG(val)	((val) * 19)
+#define IN_CLAMP(val)		clamp_val(val, 0, 255 * 19)
+#define IN_TO_REG(val)		DIV_ROUND_CLOSEST(IN_CLAMP(val), 19)
 
 static ssize_t get_in_input(struct device *dev, struct device_attribute *attr,
 			    char *buf)
@@ -349,8 +351,13 @@ static SENSOR_DEVICE_ATTR(in4_max, S_IRU
 
 #define DIV_FROM_REG(val) (1 << (val))
 #define FAN_FROM_REG(val, div) ((val) == 0 ? 0 : (480000 / ((val) << (div))))
-#define FAN_TO_REG(val, div) ((val) <= 0 ? 0 : \
-	clamp_val((480000 + ((val) << ((div)-1))) / ((val) << (div)), 1, 255))
+
+#define FAN_BASE(div)		(480000 >> (div))
+#define FAN_CLAMP(val, div)	clamp_val(val, FAN_BASE(div) / 255, \
+					  FAN_BASE(div))
+#define FAN_TO_REG(val, div)	((val) == 0 ? 0 : \
+				 DIV_ROUND_CLOSEST(480000, \
+						FAN_CLAMP(val, div) << (div)))
 
 static ssize_t get_fan_input(struct device *dev, struct device_attribute *attr,
 			     char *buf)
@@ -513,9 +520,9 @@ static SENSOR_DEVICE_ATTR(fan2_div, S_IR
 static DEVICE_ATTR(fan1_off, S_IRUGO | S_IWUSR,
 		get_fan_off, set_fan_off);
 
-#define TEMP_FROM_REG(val) (((val) - 130) * 1000)
-#define TEMP_TO_REG(val) clamp_val(((((val) < 0 ? \
-			(val) - 500 : (val) + 500) / 1000) + 130), 0, 255)
+#define TEMP_FROM_REG(val)	(((val) - 130) * 1000)
+#define TEMP_CLAMP(val)		clamp_val(val, -130000, 125000)
+#define TEMP_TO_REG(val)	(DIV_ROUND_CLOSEST(TEMP_CLAMP(val), 1000) + 130)
 
 static ssize_t get_temp_input(struct device *dev, struct device_attribute *attr,
 			      char *buf)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/hwmon/gpio-fan.c linux-libre-4.4.107-gnu/drivers/hwmon/gpio-fan.c
--- linux-libre-4.4-gnu/drivers/hwmon/gpio-fan.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/hwmon/gpio-fan.c	2017-12-20 04:05:01.000000000 -0500
@@ -406,16 +406,11 @@ static int gpio_fan_get_cur_state(struct
 				  unsigned long *state)
 {
 	struct gpio_fan_data *fan_data = cdev->devdata;
-	int r;
 
 	if (!fan_data)
 		return -EINVAL;
 
-	r = get_fan_speed_index(fan_data);
-	if (r < 0)
-		return r;
-
-	*state = r;
+	*state = fan_data->speed_index;
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/hwmon/iio_hwmon.c linux-libre-4.4.107-gnu/drivers/hwmon/iio_hwmon.c
--- linux-libre-4.4-gnu/drivers/hwmon/iio_hwmon.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/hwmon/iio_hwmon.c	2017-12-20 04:05:01.000000000 -0500
@@ -109,24 +109,24 @@ static int iio_hwmon_probe(struct platfo
 
 		switch (type) {
 		case IIO_VOLTAGE:
-			a->dev_attr.attr.name = kasprintf(GFP_KERNEL,
-							  "in%d_input",
-							  in_i++);
+			a->dev_attr.attr.name = devm_kasprintf(dev, GFP_KERNEL,
+							       "in%d_input",
+							       in_i++);
 			break;
 		case IIO_TEMP:
-			a->dev_attr.attr.name = kasprintf(GFP_KERNEL,
-							  "temp%d_input",
-							  temp_i++);
+			a->dev_attr.attr.name = devm_kasprintf(dev, GFP_KERNEL,
+							       "temp%d_input",
+							       temp_i++);
 			break;
 		case IIO_CURRENT:
-			a->dev_attr.attr.name = kasprintf(GFP_KERNEL,
-							  "curr%d_input",
-							  curr_i++);
+			a->dev_attr.attr.name = devm_kasprintf(dev, GFP_KERNEL,
+							       "curr%d_input",
+							       curr_i++);
 			break;
 		case IIO_HUMIDITYRELATIVE:
-			a->dev_attr.attr.name = kasprintf(GFP_KERNEL,
-							  "humidity%d_input",
-							  humidity_i++);
+			a->dev_attr.attr.name = devm_kasprintf(dev, GFP_KERNEL,
+							       "humidity%d_input",
+							       humidity_i++);
 			break;
 		default:
 			ret = -EINVAL;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/hwmon/max1111.c linux-libre-4.4.107-gnu/drivers/hwmon/max1111.c
--- linux-libre-4.4-gnu/drivers/hwmon/max1111.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/hwmon/max1111.c	2017-12-20 04:05:01.000000000 -0500
@@ -85,6 +85,9 @@ static struct max1111_data *the_max1111;
 
 int max1111_read_channel(int channel)
 {
+	if (!the_max1111 || !the_max1111->spi)
+		return -ENODEV;
+
 	return max1111_read(&the_max1111->spi->dev, channel);
 }
 EXPORT_SYMBOL(max1111_read_channel);
@@ -258,6 +261,9 @@ static int max1111_remove(struct spi_dev
 {
 	struct max1111_data *data = spi_get_drvdata(spi);
 
+#ifdef CONFIG_SHARPSL_PM
+	the_max1111 = NULL;
+#endif
 	hwmon_device_unregister(data->hwmon_dev);
 	sysfs_remove_group(&spi->dev.kobj, &max1110_attr_group);
 	sysfs_remove_group(&spi->dev.kobj, &max1111_attr_group);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/hwmon/nct7802.c linux-libre-4.4.107-gnu/drivers/hwmon/nct7802.c
--- linux-libre-4.4-gnu/drivers/hwmon/nct7802.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/hwmon/nct7802.c	2017-12-20 04:05:01.000000000 -0500
@@ -259,13 +259,15 @@ static int nct7802_read_fan_min(struct n
 		ret = 0;
 	else if (ret)
 		ret = DIV_ROUND_CLOSEST(1350000U, ret);
+	else
+		ret = 1350000U;
 abort:
 	mutex_unlock(&data->access_lock);
 	return ret;
 }
 
 static int nct7802_write_fan_min(struct nct7802_data *data, u8 reg_fan_low,
-				 u8 reg_fan_high, unsigned int limit)
+				 u8 reg_fan_high, unsigned long limit)
 {
 	int err;
 
@@ -326,8 +328,8 @@ static int nct7802_write_voltage(struct
 	int shift = 8 - REG_VOLTAGE_LIMIT_MSB_SHIFT[index - 1][nr];
 	int err;
 
+	voltage = clamp_val(voltage, 0, 0x3ff * nct7802_vmul[nr]);
 	voltage = DIV_ROUND_CLOSEST(voltage, nct7802_vmul[nr]);
-	voltage = clamp_val(voltage, 0, 0x3ff);
 
 	mutex_lock(&data->access_lock);
 	err = regmap_write(data->regmap,
@@ -402,7 +404,7 @@ static ssize_t store_temp(struct device
 	if (err < 0)
 		return err;
 
-	val = clamp_val(DIV_ROUND_CLOSEST(val, 1000), -128, 127);
+	val = DIV_ROUND_CLOSEST(clamp_val(val, -128000, 127000), 1000);
 
 	err = regmap_write(data->regmap, nr, val & 0xff);
 	return err ? : count;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/hwmon/scpi-hwmon.c linux-libre-4.4.107-gnu/drivers/hwmon/scpi-hwmon.c
--- linux-libre-4.4-gnu/drivers/hwmon/scpi-hwmon.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/hwmon/scpi-hwmon.c	2017-12-20 04:05:01.000000000 -0500
@@ -272,6 +272,7 @@ static const struct of_device_id scpi_of
 	{.compatible = "arm,scpi-sensors"},
 	{},
 };
+MODULE_DEVICE_TABLE(of, scpi_of_match);
 
 static struct platform_driver scpi_hwmon_platdrv = {
 	.driver = {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/hwspinlock/hwspinlock_core.c linux-libre-4.4.107-gnu/drivers/hwspinlock/hwspinlock_core.c
--- linux-libre-4.4-gnu/drivers/hwspinlock/hwspinlock_core.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/hwspinlock/hwspinlock_core.c	2017-12-20 04:05:01.000000000 -0500
@@ -313,6 +313,10 @@ int of_hwspin_lock_get_id(struct device_
 		hwlock = radix_tree_deref_slot(slot);
 		if (unlikely(!hwlock))
 			continue;
+		if (radix_tree_is_indirect_ptr(hwlock)) {
+			slot = radix_tree_iter_retry(&iter);
+			continue;
+		}
 
 		if (hwlock->bank->dev->of_node == args.np) {
 			ret = 0;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/hwtracing/coresight/coresight.c linux-libre-4.4.107-gnu/drivers/hwtracing/coresight/coresight.c
--- linux-libre-4.4-gnu/drivers/hwtracing/coresight/coresight.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/hwtracing/coresight/coresight.c	2017-12-20 04:05:01.000000000 -0500
@@ -548,7 +548,7 @@ static int coresight_name_match(struct d
 	to_match = data;
 	i_csdev = to_coresight_device(dev);
 
-	if (!strcmp(to_match, dev_name(&i_csdev->dev)))
+	if (to_match && !strcmp(to_match, dev_name(&i_csdev->dev)))
 		return 1;
 
 	return 0;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/hwtracing/intel_th/core.c linux-libre-4.4.107-gnu/drivers/hwtracing/intel_th/core.c
--- linux-libre-4.4-gnu/drivers/hwtracing/intel_th/core.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/hwtracing/intel_th/core.c	2017-12-20 04:05:01.000000000 -0500
@@ -419,6 +419,38 @@ static struct intel_th_subdevice {
 	},
 };
 
+#ifdef CONFIG_MODULES
+static void __intel_th_request_hub_module(struct work_struct *work)
+{
+	struct intel_th *th = container_of(work, struct intel_th,
+					   request_module_work);
+
+	request_module("intel_th_%s", th->hub->name);
+}
+
+static int intel_th_request_hub_module(struct intel_th *th)
+{
+	INIT_WORK(&th->request_module_work, __intel_th_request_hub_module);
+	schedule_work(&th->request_module_work);
+
+	return 0;
+}
+
+static void intel_th_request_hub_module_flush(struct intel_th *th)
+{
+	flush_work(&th->request_module_work);
+}
+#else
+static inline int intel_th_request_hub_module(struct intel_th *th)
+{
+	return -EINVAL;
+}
+
+static inline void intel_th_request_hub_module_flush(struct intel_th *th)
+{
+}
+#endif /* CONFIG_MODULES */
+
 static int intel_th_populate(struct intel_th *th, struct resource *devres,
 			     unsigned int ndevres, int irq)
 {
@@ -488,7 +520,7 @@ static int intel_th_populate(struct inte
 		/* need switch driver to be loaded to enumerate the rest */
 		if (subdev->type == INTEL_TH_SWITCH && !req) {
 			th->hub = thdev;
-			err = request_module("intel_th_%s", subdev->name);
+			err = intel_th_request_hub_module(th);
 			if (!err)
 				req++;
 		}
@@ -603,6 +635,7 @@ void intel_th_free(struct intel_th *th)
 {
 	int i;
 
+	intel_th_request_hub_module_flush(th);
 	for (i = 0; i < TH_SUBDEVICE_MAX; i++)
 		if (th->thdev[i] != th->hub)
 			intel_th_device_remove(th->thdev[i]);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/hwtracing/intel_th/intel_th.h linux-libre-4.4.107-gnu/drivers/hwtracing/intel_th/intel_th.h
--- linux-libre-4.4-gnu/drivers/hwtracing/intel_th/intel_th.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/hwtracing/intel_th/intel_th.h	2017-12-20 04:05:01.000000000 -0500
@@ -197,6 +197,9 @@ struct intel_th {
 
 	int			id;
 	int			major;
+#ifdef CONFIG_MODULES
+	struct work_struct	request_module_work;
+#endif /* CONFIG_MODULES */
 #ifdef CONFIG_INTEL_TH_DEBUG
 	struct dentry		*dbg;
 #endif
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/hwtracing/intel_th/pci.c linux-libre-4.4.107-gnu/drivers/hwtracing/intel_th/pci.c
--- linux-libre-4.4-gnu/drivers/hwtracing/intel_th/pci.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/hwtracing/intel_th/pci.c	2017-12-20 04:05:01.000000000 -0500
@@ -67,6 +67,26 @@ static const struct pci_device_id intel_
 		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xa126),
 		.driver_data = (kernel_ulong_t)0,
 	},
+	{
+		/* Kaby Lake PCH-H */
+		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xa2a6),
+		.driver_data = (kernel_ulong_t)0,
+	},
+	{
+		/* Cannon Lake H */
+		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xa326),
+		.driver_data = (kernel_ulong_t)0,
+	},
+	{
+		/* Cannon Lake LP */
+		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x9da6),
+		.driver_data = (kernel_ulong_t)0,
+	},
+	{
+		/* Gemini Lake */
+		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x318e),
+		.driver_data = (kernel_ulong_t)0,
+	},
 	{ 0 },
 };
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/hwtracing/stm/core.c linux-libre-4.4.107-gnu/drivers/hwtracing/stm/core.c
--- linux-libre-4.4-gnu/drivers/hwtracing/stm/core.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/hwtracing/stm/core.c	2017-12-20 04:05:01.000000000 -0500
@@ -952,7 +952,7 @@ void stm_source_unregister_device(struct
 
 	stm_source_link_drop(src);
 
-	device_destroy(&stm_source_class, src->dev.devt);
+	device_unregister(&src->dev);
 }
 EXPORT_SYMBOL_GPL(stm_source_unregister_device);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/hwtracing/stm/Kconfig linux-libre-4.4.107-gnu/drivers/hwtracing/stm/Kconfig
--- linux-libre-4.4-gnu/drivers/hwtracing/stm/Kconfig	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/hwtracing/stm/Kconfig	2017-12-20 04:05:01.000000000 -0500
@@ -1,6 +1,7 @@
 config STM
 	tristate "System Trace Module devices"
 	select CONFIGFS_FS
+	select SRCU
 	help
 	  A System Trace Module (STM) is a device exporting data in System
 	  Trace Protocol (STP) format as defined by MIPI STP standards.
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/i2c/busses/i2c-at91.c linux-libre-4.4.107-gnu/drivers/i2c/busses/i2c-at91.c
--- linux-libre-4.4-gnu/drivers/i2c/busses/i2c-at91.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/i2c/busses/i2c-at91.c	2017-12-20 04:05:01.000000000 -0500
@@ -1131,6 +1131,7 @@ static int at91_twi_suspend_noirq(struct
 
 static int at91_twi_resume_noirq(struct device *dev)
 {
+	struct at91_twi_dev *twi_dev = dev_get_drvdata(dev);
 	int ret;
 
 	if (!pm_runtime_status_suspended(dev)) {
@@ -1142,6 +1143,8 @@ static int at91_twi_resume_noirq(struct
 	pm_runtime_mark_last_busy(dev);
 	pm_request_autosuspend(dev);
 
+	at91_init_twi_bus(twi_dev);
+
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/i2c/busses/i2c-brcmstb.c linux-libre-4.4.107-gnu/drivers/i2c/busses/i2c-brcmstb.c
--- linux-libre-4.4-gnu/drivers/i2c/busses/i2c-brcmstb.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/i2c/busses/i2c-brcmstb.c	2017-12-20 04:05:01.000000000 -0500
@@ -562,8 +562,7 @@ static int brcmstb_i2c_probe(struct plat
 	if (!dev)
 		return -ENOMEM;
 
-	dev->bsc_regmap = devm_kzalloc(&pdev->dev, sizeof(struct bsc_regs *),
-				       GFP_KERNEL);
+	dev->bsc_regmap = devm_kzalloc(&pdev->dev, sizeof(*dev->bsc_regmap), GFP_KERNEL);
 	if (!dev->bsc_regmap)
 		return -ENOMEM;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/i2c/busses/i2c-cpm.c linux-libre-4.4.107-gnu/drivers/i2c/busses/i2c-cpm.c
--- linux-libre-4.4-gnu/drivers/i2c/busses/i2c-cpm.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/i2c/busses/i2c-cpm.c	2017-12-20 04:05:01.000000000 -0500
@@ -116,8 +116,8 @@ struct cpm_i2c {
 	cbd_t __iomem *rbase;
 	u_char *txbuf[CPM_MAXBD];
 	u_char *rxbuf[CPM_MAXBD];
-	u32 txdma[CPM_MAXBD];
-	u32 rxdma[CPM_MAXBD];
+	dma_addr_t txdma[CPM_MAXBD];
+	dma_addr_t rxdma[CPM_MAXBD];
 };
 
 static irqreturn_t cpm_i2c_interrupt(int irq, void *dev_id)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/i2c/busses/i2c-cros-ec-tunnel.c linux-libre-4.4.107-gnu/drivers/i2c/busses/i2c-cros-ec-tunnel.c
--- linux-libre-4.4-gnu/drivers/i2c/busses/i2c-cros-ec-tunnel.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/i2c/busses/i2c-cros-ec-tunnel.c	2017-12-20 04:05:01.000000000 -0500
@@ -215,7 +215,7 @@ static int ec_i2c_xfer(struct i2c_adapte
 	msg->outsize = request_len;
 	msg->insize = response_len;
 
-	result = cros_ec_cmd_xfer(bus->ec, msg);
+	result = cros_ec_cmd_xfer_status(bus->ec, msg);
 	if (result < 0) {
 		dev_err(dev, "Error transferring EC i2c message %d\n", result);
 		goto exit;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/i2c/busses/i2c-designware-platdrv.c linux-libre-4.4.107-gnu/drivers/i2c/busses/i2c-designware-platdrv.c
--- linux-libre-4.4-gnu/drivers/i2c/busses/i2c-designware-platdrv.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/i2c/busses/i2c-designware-platdrv.c	2017-12-20 04:05:01.000000000 -0500
@@ -294,7 +294,7 @@ static void dw_i2c_plat_complete(struct
 #endif
 
 #ifdef CONFIG_PM
-static int dw_i2c_plat_suspend(struct device *dev)
+static int dw_i2c_plat_runtime_suspend(struct device *dev)
 {
 	struct platform_device *pdev = to_platform_device(dev);
 	struct dw_i2c_dev *i_dev = platform_get_drvdata(pdev);
@@ -318,11 +318,21 @@ static int dw_i2c_plat_resume(struct dev
 	return 0;
 }
 
+#ifdef CONFIG_PM_SLEEP
+static int dw_i2c_plat_suspend(struct device *dev)
+{
+	pm_runtime_resume(dev);
+	return dw_i2c_plat_runtime_suspend(dev);
+}
+#endif
+
 static const struct dev_pm_ops dw_i2c_dev_pm_ops = {
 	.prepare = dw_i2c_plat_prepare,
 	.complete = dw_i2c_plat_complete,
 	SET_SYSTEM_SLEEP_PM_OPS(dw_i2c_plat_suspend, dw_i2c_plat_resume)
-	SET_RUNTIME_PM_OPS(dw_i2c_plat_suspend, dw_i2c_plat_resume, NULL)
+	SET_RUNTIME_PM_OPS(dw_i2c_plat_runtime_suspend,
+			   dw_i2c_plat_resume,
+			   NULL)
 };
 
 #define DW_I2C_DEV_PMOPS (&dw_i2c_dev_pm_ops)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/i2c/busses/i2c-efm32.c linux-libre-4.4.107-gnu/drivers/i2c/busses/i2c-efm32.c
--- linux-libre-4.4-gnu/drivers/i2c/busses/i2c-efm32.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/i2c/busses/i2c-efm32.c	2017-12-20 04:05:01.000000000 -0500
@@ -433,7 +433,7 @@ static int efm32_i2c_probe(struct platfo
 	ret = request_irq(ddata->irq, efm32_i2c_irq, 0, DRIVER_NAME, ddata);
 	if (ret < 0) {
 		dev_err(&pdev->dev, "failed to request irq (%d)\n", ret);
-		return ret;
+		goto err_disable_clk;
 	}
 
 	ret = i2c_add_adapter(&ddata->adapter);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/i2c/busses/i2c-eg20t.c linux-libre-4.4.107-gnu/drivers/i2c/busses/i2c-eg20t.c
--- linux-libre-4.4-gnu/drivers/i2c/busses/i2c-eg20t.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/i2c/busses/i2c-eg20t.c	2017-12-20 04:05:01.000000000 -0500
@@ -773,13 +773,6 @@ static int pch_i2c_probe(struct pci_dev
 	/* Set the number of I2C channel instance */
 	adap_info->ch_num = id->driver_data;
 
-	ret = request_irq(pdev->irq, pch_i2c_handler, IRQF_SHARED,
-		  KBUILD_MODNAME, adap_info);
-	if (ret) {
-		pch_pci_err(pdev, "request_irq FAILED\n");
-		goto err_request_irq;
-	}
-
 	for (i = 0; i < adap_info->ch_num; i++) {
 		pch_adap = &adap_info->pch_data[i].pch_adapter;
 		adap_info->pch_i2c_suspended = false;
@@ -796,6 +789,17 @@ static int pch_i2c_probe(struct pci_dev
 		adap_info->pch_data[i].pch_base_address = base_addr + 0x100 * i;
 
 		pch_adap->dev.parent = &pdev->dev;
+	}
+
+	ret = request_irq(pdev->irq, pch_i2c_handler, IRQF_SHARED,
+		  KBUILD_MODNAME, adap_info);
+	if (ret) {
+		pch_pci_err(pdev, "request_irq FAILED\n");
+		goto err_request_irq;
+	}
+
+	for (i = 0; i < adap_info->ch_num; i++) {
+		pch_adap = &adap_info->pch_data[i].pch_adapter;
 
 		pch_i2c_init(&adap_info->pch_data[i]);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/i2c/busses/i2c-exynos5.c linux-libre-4.4.107-gnu/drivers/i2c/busses/i2c-exynos5.c
--- linux-libre-4.4-gnu/drivers/i2c/busses/i2c-exynos5.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/i2c/busses/i2c-exynos5.c	2017-12-20 04:05:01.000000000 -0500
@@ -671,7 +671,9 @@ static int exynos5_i2c_xfer(struct i2c_a
 		return -EIO;
 	}
 
-	clk_prepare_enable(i2c->clk);
+	ret = clk_enable(i2c->clk);
+	if (ret)
+		return ret;
 
 	for (i = 0; i < num; i++, msgs++) {
 		stop = (i == num - 1);
@@ -695,7 +697,7 @@ static int exynos5_i2c_xfer(struct i2c_a
 	}
 
  out:
-	clk_disable_unprepare(i2c->clk);
+	clk_disable(i2c->clk);
 	return ret;
 }
 
@@ -747,7 +749,9 @@ static int exynos5_i2c_probe(struct plat
 		return -ENOENT;
 	}
 
-	clk_prepare_enable(i2c->clk);
+	ret = clk_prepare_enable(i2c->clk);
+	if (ret)
+		return ret;
 
 	mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	i2c->regs = devm_ioremap_resource(&pdev->dev, mem);
@@ -799,6 +803,10 @@ static int exynos5_i2c_probe(struct plat
 
 	platform_set_drvdata(pdev, i2c);
 
+	clk_disable(i2c->clk);
+
+	return 0;
+
  err_clk:
 	clk_disable_unprepare(i2c->clk);
 	return ret;
@@ -810,6 +818,8 @@ static int exynos5_i2c_remove(struct pla
 
 	i2c_del_adapter(&i2c->adap);
 
+	clk_unprepare(i2c->clk);
+
 	return 0;
 }
 
@@ -821,6 +831,8 @@ static int exynos5_i2c_suspend_noirq(str
 
 	i2c->suspended = 1;
 
+	clk_unprepare(i2c->clk);
+
 	return 0;
 }
 
@@ -830,7 +842,9 @@ static int exynos5_i2c_resume_noirq(stru
 	struct exynos5_i2c *i2c = platform_get_drvdata(pdev);
 	int ret = 0;
 
-	clk_prepare_enable(i2c->clk);
+	ret = clk_prepare_enable(i2c->clk);
+	if (ret)
+		return ret;
 
 	ret = exynos5_hsi2c_clock_setup(i2c);
 	if (ret) {
@@ -839,7 +853,7 @@ static int exynos5_i2c_resume_noirq(stru
 	}
 
 	exynos5_i2c_init(i2c);
-	clk_disable_unprepare(i2c->clk);
+	clk_disable(i2c->clk);
 	i2c->suspended = 0;
 
 	return 0;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/i2c/busses/i2c-i801.c linux-libre-4.4.107-gnu/drivers/i2c/busses/i2c-i801.c
--- linux-libre-4.4-gnu/drivers/i2c/busses/i2c-i801.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/i2c/busses/i2c-i801.c	2017-12-20 04:05:01.000000000 -0500
@@ -244,6 +244,13 @@ struct i801_priv {
 	struct platform_device *mux_pdev;
 #endif
 	struct platform_device *tco_pdev;
+
+	/*
+	 * If set to true the host controller registers are reserved for
+	 * ACPI AML use. Protected by acpi_lock.
+	 */
+	bool acpi_reserved;
+	struct mutex acpi_lock;
 };
 
 #define FEATURE_SMBUS_PEC	(1 << 0)
@@ -714,9 +721,15 @@ static s32 i801_access(struct i2c_adapte
 {
 	int hwpec;
 	int block = 0;
-	int ret, xact = 0;
+	int ret = 0, xact = 0;
 	struct i801_priv *priv = i2c_get_adapdata(adap);
 
+	mutex_lock(&priv->acpi_lock);
+	if (priv->acpi_reserved) {
+		mutex_unlock(&priv->acpi_lock);
+		return -EBUSY;
+	}
+
 	hwpec = (priv->features & FEATURE_SMBUS_PEC) && (flags & I2C_CLIENT_PEC)
 		&& size != I2C_SMBUS_QUICK
 		&& size != I2C_SMBUS_I2C_BLOCK_DATA;
@@ -773,7 +786,8 @@ static s32 i801_access(struct i2c_adapte
 	default:
 		dev_err(&priv->pci_dev->dev, "Unsupported transaction %d\n",
 			size);
-		return -EOPNOTSUPP;
+		ret = -EOPNOTSUPP;
+		goto out;
 	}
 
 	if (hwpec)	/* enable/disable hardware PEC */
@@ -796,11 +810,11 @@ static s32 i801_access(struct i2c_adapte
 		       ~(SMBAUXCTL_CRC | SMBAUXCTL_E32B), SMBAUXCTL(priv));
 
 	if (block)
-		return ret;
+		goto out;
 	if (ret)
-		return ret;
+		goto out;
 	if ((read_write == I2C_SMBUS_WRITE) || (xact == I801_QUICK))
-		return 0;
+		goto out;
 
 	switch (xact & 0x7f) {
 	case I801_BYTE:	/* Result put in SMBHSTDAT0 */
@@ -812,7 +826,10 @@ static s32 i801_access(struct i2c_adapte
 			     (inb_p(SMBHSTDAT1(priv)) << 8);
 		break;
 	}
-	return 0;
+
+out:
+	mutex_unlock(&priv->acpi_lock);
+	return ret;
 }
 
 
@@ -1249,6 +1266,72 @@ static void i801_add_tco(struct i801_pri
 	priv->tco_pdev = pdev;
 }
 
+#ifdef CONFIG_ACPI
+static acpi_status
+i801_acpi_io_handler(u32 function, acpi_physical_address address, u32 bits,
+		     u64 *value, void *handler_context, void *region_context)
+{
+	struct i801_priv *priv = handler_context;
+	struct pci_dev *pdev = priv->pci_dev;
+	acpi_status status;
+
+	/*
+	 * Once BIOS AML code touches the OpRegion we warn and inhibit any
+	 * further access from the driver itself. This device is now owned
+	 * by the system firmware.
+	 */
+	mutex_lock(&priv->acpi_lock);
+
+	if (!priv->acpi_reserved) {
+		priv->acpi_reserved = true;
+
+		dev_warn(&pdev->dev, "BIOS is accessing SMBus registers\n");
+		dev_warn(&pdev->dev, "Driver SMBus register access inhibited\n");
+	}
+
+	if ((function & ACPI_IO_MASK) == ACPI_READ)
+		status = acpi_os_read_port(address, (u32 *)value, bits);
+	else
+		status = acpi_os_write_port(address, (u32)*value, bits);
+
+	mutex_unlock(&priv->acpi_lock);
+
+	return status;
+}
+
+static int i801_acpi_probe(struct i801_priv *priv)
+{
+	struct acpi_device *adev;
+	acpi_status status;
+
+	adev = ACPI_COMPANION(&priv->pci_dev->dev);
+	if (adev) {
+		status = acpi_install_address_space_handler(adev->handle,
+				ACPI_ADR_SPACE_SYSTEM_IO, i801_acpi_io_handler,
+				NULL, priv);
+		if (ACPI_SUCCESS(status))
+			return 0;
+	}
+
+	return acpi_check_resource_conflict(&priv->pci_dev->resource[SMBBAR]);
+}
+
+static void i801_acpi_remove(struct i801_priv *priv)
+{
+	struct acpi_device *adev;
+
+	adev = ACPI_COMPANION(&priv->pci_dev->dev);
+	if (!adev)
+		return;
+
+	acpi_remove_address_space_handler(adev->handle,
+		ACPI_ADR_SPACE_SYSTEM_IO, i801_acpi_io_handler);
+}
+#else
+static inline int i801_acpi_probe(struct i801_priv *priv) { return 0; }
+static inline void i801_acpi_remove(struct i801_priv *priv) { }
+#endif
+
 static int i801_probe(struct pci_dev *dev, const struct pci_device_id *id)
 {
 	unsigned char temp;
@@ -1266,11 +1349,14 @@ static int i801_probe(struct pci_dev *de
 	priv->adapter.dev.parent = &dev->dev;
 	ACPI_COMPANION_SET(&priv->adapter.dev, ACPI_COMPANION(&dev->dev));
 	priv->adapter.retries = 3;
+	mutex_init(&priv->acpi_lock);
 
 	priv->pci_dev = dev;
 	switch (dev->device) {
 	case PCI_DEVICE_ID_INTEL_SUNRISEPOINT_H_SMBUS:
 	case PCI_DEVICE_ID_INTEL_SUNRISEPOINT_LP_SMBUS:
+	case PCI_DEVICE_ID_INTEL_LEWISBURG_SMBUS:
+	case PCI_DEVICE_ID_INTEL_LEWISBURG_SSKU_SMBUS:
 	case PCI_DEVICE_ID_INTEL_DNV_SMBUS:
 		priv->features |= FEATURE_I2C_BLOCK_READ;
 		priv->features |= FEATURE_IRQ;
@@ -1326,10 +1412,8 @@ static int i801_probe(struct pci_dev *de
 		return -ENODEV;
 	}
 
-	err = acpi_check_resource_conflict(&dev->resource[SMBBAR]);
-	if (err) {
+	if (i801_acpi_probe(priv))
 		return -ENODEV;
-	}
 
 	err = pcim_iomap_regions(dev, 1 << SMBBAR,
 				 dev_driver_string(&dev->dev));
@@ -1338,6 +1422,7 @@ static int i801_probe(struct pci_dev *de
 			"Failed to request SMBus region 0x%lx-0x%Lx\n",
 			priv->smba,
 			(unsigned long long)pci_resource_end(dev, SMBBAR));
+		i801_acpi_remove(priv);
 		return err;
 	}
 
@@ -1402,6 +1487,7 @@ static int i801_probe(struct pci_dev *de
 	err = i2c_add_adapter(&priv->adapter);
 	if (err) {
 		dev_err(&dev->dev, "Failed to add SMBus adapter\n");
+		i801_acpi_remove(priv);
 		return err;
 	}
 
@@ -1420,6 +1506,7 @@ static void i801_remove(struct pci_dev *
 
 	i801_del_mux(priv);
 	i2c_del_adapter(&priv->adapter);
+	i801_acpi_remove(priv);
 	pci_write_config_byte(dev, SMBHSTCFG, priv->original_hstcfg);
 
 	platform_device_unregister(priv->tco_pdev);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/i2c/busses/i2c-ismt.c linux-libre-4.4.107-gnu/drivers/i2c/busses/i2c-ismt.c
--- linux-libre-4.4-gnu/drivers/i2c/busses/i2c-ismt.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/i2c/busses/i2c-ismt.c	2017-12-20 04:05:01.000000000 -0500
@@ -338,6 +338,11 @@ static int ismt_process_desc(const struc
 			data->word = dma_buffer[0] | (dma_buffer[1] << 8);
 			break;
 		case I2C_SMBUS_BLOCK_DATA:
+			if (desc->rxbytes != dma_buffer[0] + 1)
+				return -EMSGSIZE;
+
+			memcpy(data->block, dma_buffer, desc->rxbytes);
+			break;
 		case I2C_SMBUS_I2C_BLOCK_DATA:
 			memcpy(&data->block[1], dma_buffer, desc->rxbytes);
 			data->block[0] = desc->rxbytes;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/i2c/busses/i2c-jz4780.c linux-libre-4.4.107-gnu/drivers/i2c/busses/i2c-jz4780.c
--- linux-libre-4.4-gnu/drivers/i2c/busses/i2c-jz4780.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/i2c/busses/i2c-jz4780.c	2017-12-20 04:05:01.000000000 -0500
@@ -786,10 +786,6 @@ static int jz4780_i2c_probe(struct platf
 
 	jz4780_i2c_writew(i2c, JZ4780_I2C_INTM, 0x0);
 
-	i2c->cmd = 0;
-	memset(i2c->cmd_buf, 0, BUFSIZE);
-	memset(i2c->data_buf, 0, BUFSIZE);
-
 	i2c->irq = platform_get_irq(pdev, 0);
 	ret = devm_request_irq(&pdev->dev, i2c->irq, jz4780_i2c_irq, 0,
 			       dev_name(&pdev->dev), i2c);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/i2c/busses/i2c-meson.c linux-libre-4.4.107-gnu/drivers/i2c/busses/i2c-meson.c
--- linux-libre-4.4-gnu/drivers/i2c/busses/i2c-meson.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/i2c/busses/i2c-meson.c	2017-12-20 04:05:01.000000000 -0500
@@ -175,7 +175,7 @@ static void meson_i2c_put_data(struct me
 		wdata1 |= *buf++ << ((i - 4) * 8);
 
 	writel(wdata0, i2c->regs + REG_TOK_WDATA0);
-	writel(wdata0, i2c->regs + REG_TOK_WDATA1);
+	writel(wdata1, i2c->regs + REG_TOK_WDATA1);
 
 	dev_dbg(i2c->dev, "%s: data %08x %08x len %d\n", __func__,
 		wdata0, wdata1, len);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/i2c/busses/i2c-piix4.c linux-libre-4.4.107-gnu/drivers/i2c/busses/i2c-piix4.c
--- linux-libre-4.4-gnu/drivers/i2c/busses/i2c-piix4.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/i2c/busses/i2c-piix4.c	2017-12-20 04:05:01.000000000 -0500
@@ -54,7 +54,7 @@
 #define SMBSLVDAT	(0xC + piix4_smba)
 
 /* count for request_region */
-#define SMBIOSIZE	8
+#define SMBIOSIZE	9
 
 /* PCI Address Constants */
 #define SMBBA		0x090
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/i2c/busses/i2c-qup.c linux-libre-4.4.107-gnu/drivers/i2c/busses/i2c-qup.c
--- linux-libre-4.4-gnu/drivers/i2c/busses/i2c-qup.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/i2c/busses/i2c-qup.c	2017-12-20 04:05:01.000000000 -0500
@@ -727,7 +727,8 @@ static int qup_i2c_pm_resume_runtime(str
 #ifdef CONFIG_PM_SLEEP
 static int qup_i2c_suspend(struct device *device)
 {
-	qup_i2c_pm_suspend_runtime(device);
+	if (!pm_runtime_suspended(device))
+		return qup_i2c_pm_suspend_runtime(device);
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/i2c/busses/i2c-riic.c linux-libre-4.4.107-gnu/drivers/i2c/busses/i2c-riic.c
--- linux-libre-4.4-gnu/drivers/i2c/busses/i2c-riic.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/i2c/busses/i2c-riic.c	2017-12-20 04:05:01.000000000 -0500
@@ -80,6 +80,7 @@
 #define ICIER_TEIE	0x40
 #define ICIER_RIE	0x20
 #define ICIER_NAKIE	0x10
+#define ICIER_SPIE	0x08
 
 #define ICSR2_NACKF	0x10
 
@@ -216,11 +217,14 @@ static irqreturn_t riic_tend_isr(int irq
 		return IRQ_NONE;
 	}
 
-	if (riic->is_last || riic->err)
+	if (riic->is_last || riic->err) {
+		riic_clear_set_bit(riic, ICIER_TEIE, ICIER_SPIE, RIIC_ICIER);
 		writeb(ICCR2_SP, riic->base + RIIC_ICCR2);
-
-	writeb(0, riic->base + RIIC_ICIER);
-	complete(&riic->msg_done);
+	} else {
+		/* Transfer is complete, but do not send STOP */
+		riic_clear_set_bit(riic, ICIER_TEIE, 0, RIIC_ICIER);
+		complete(&riic->msg_done);
+	}
 
 	return IRQ_HANDLED;
 }
@@ -240,13 +244,13 @@ static irqreturn_t riic_rdrf_isr(int irq
 
 	if (riic->bytes_left == 1) {
 		/* STOP must come before we set ACKBT! */
-		if (riic->is_last)
+		if (riic->is_last) {
+			riic_clear_set_bit(riic, 0, ICIER_SPIE, RIIC_ICIER);
 			writeb(ICCR2_SP, riic->base + RIIC_ICCR2);
+		}
 
 		riic_clear_set_bit(riic, 0, ICMR3_ACKBT, RIIC_ICMR3);
 
-		writeb(0, riic->base + RIIC_ICIER);
-		complete(&riic->msg_done);
 	} else {
 		riic_clear_set_bit(riic, ICMR3_ACKBT, 0, RIIC_ICMR3);
 	}
@@ -259,6 +263,21 @@ static irqreturn_t riic_rdrf_isr(int irq
 	return IRQ_HANDLED;
 }
 
+static irqreturn_t riic_stop_isr(int irq, void *data)
+{
+	struct riic_dev *riic = data;
+
+	/* read back registers to confirm writes have fully propagated */
+	writeb(0, riic->base + RIIC_ICSR2);
+	readb(riic->base + RIIC_ICSR2);
+	writeb(0, riic->base + RIIC_ICIER);
+	readb(riic->base + RIIC_ICIER);
+
+	complete(&riic->msg_done);
+
+	return IRQ_HANDLED;
+}
+
 static u32 riic_func(struct i2c_adapter *adap)
 {
 	return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL;
@@ -326,6 +345,7 @@ static struct riic_irq_desc riic_irqs[]
 	{ .res_num = 0, .isr = riic_tend_isr, .name = "riic-tend" },
 	{ .res_num = 1, .isr = riic_rdrf_isr, .name = "riic-rdrf" },
 	{ .res_num = 2, .isr = riic_tdre_isr, .name = "riic-tdre" },
+	{ .res_num = 3, .isr = riic_stop_isr, .name = "riic-stop" },
 	{ .res_num = 5, .isr = riic_tend_isr, .name = "riic-nack" },
 };
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/i2c/busses/i2c-tiny-usb.c linux-libre-4.4.107-gnu/drivers/i2c/busses/i2c-tiny-usb.c
--- linux-libre-4.4-gnu/drivers/i2c/busses/i2c-tiny-usb.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/i2c/busses/i2c-tiny-usb.c	2017-12-20 04:05:01.000000000 -0500
@@ -178,22 +178,39 @@ static int usb_read(struct i2c_adapter *
 		    int value, int index, void *data, int len)
 {
 	struct i2c_tiny_usb *dev = (struct i2c_tiny_usb *)adapter->algo_data;
+	void *dmadata = kmalloc(len, GFP_KERNEL);
+	int ret;
+
+	if (!dmadata)
+		return -ENOMEM;
 
 	/* do control transfer */
-	return usb_control_msg(dev->usb_dev, usb_rcvctrlpipe(dev->usb_dev, 0),
+	ret = usb_control_msg(dev->usb_dev, usb_rcvctrlpipe(dev->usb_dev, 0),
 			       cmd, USB_TYPE_VENDOR | USB_RECIP_INTERFACE |
-			       USB_DIR_IN, value, index, data, len, 2000);
+			       USB_DIR_IN, value, index, dmadata, len, 2000);
+
+	memcpy(data, dmadata, len);
+	kfree(dmadata);
+	return ret;
 }
 
 static int usb_write(struct i2c_adapter *adapter, int cmd,
 		     int value, int index, void *data, int len)
 {
 	struct i2c_tiny_usb *dev = (struct i2c_tiny_usb *)adapter->algo_data;
+	void *dmadata = kmemdup(data, len, GFP_KERNEL);
+	int ret;
+
+	if (!dmadata)
+		return -ENOMEM;
 
 	/* do control transfer */
-	return usb_control_msg(dev->usb_dev, usb_sndctrlpipe(dev->usb_dev, 0),
+	ret = usb_control_msg(dev->usb_dev, usb_sndctrlpipe(dev->usb_dev, 0),
 			       cmd, USB_TYPE_VENDOR | USB_RECIP_INTERFACE,
-			       value, index, data, len, 2000);
+			       value, index, dmadata, len, 2000);
+
+	kfree(dmadata);
+	return ret;
 }
 
 static void i2c_tiny_usb_free(struct i2c_tiny_usb *dev)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/i2c/busses/i2c-xgene-slimpro.c linux-libre-4.4.107-gnu/drivers/i2c/busses/i2c-xgene-slimpro.c
--- linux-libre-4.4-gnu/drivers/i2c/busses/i2c-xgene-slimpro.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/i2c/busses/i2c-xgene-slimpro.c	2017-12-20 04:05:01.000000000 -0500
@@ -105,7 +105,7 @@ struct slimpro_i2c_dev {
 	struct mbox_chan *mbox_chan;
 	struct mbox_client mbox_client;
 	struct completion rd_complete;
-	u8 dma_buffer[I2C_SMBUS_BLOCK_MAX];
+	u8 dma_buffer[I2C_SMBUS_BLOCK_MAX + 1]; /* dma_buffer[0] is used for length */
 	u32 *resp_msg;
 };
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/i2c/i2c-core.c linux-libre-4.4.107-gnu/drivers/i2c/i2c-core.c
--- linux-libre-4.4-gnu/drivers/i2c/i2c-core.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/i2c/i2c-core.c	2017-12-20 04:05:01.000000000 -0500
@@ -1400,7 +1400,7 @@ static struct i2c_client *of_i2c_registe
 
 	if (i2c_check_addr_validity(addr, info.flags)) {
 		dev_err(&adap->dev, "of_i2c: invalid addr=%x on %s\n",
-			info.addr, node->full_name);
+			addr, node->full_name);
 		return ERR_PTR(-EINVAL);
 	}
 
@@ -1876,6 +1876,7 @@ int i2c_register_driver(struct module *o
 	/* add the driver to the list of i2c drivers in the driver core */
 	driver->driver.owner = owner;
 	driver->driver.bus = &i2c_bus_type;
+	INIT_LIST_HEAD(&driver->clients);
 
 	/* When registration returns, the driver core
 	 * will have called probe() for all matching-but-unbound devices.
@@ -1886,7 +1887,6 @@ int i2c_register_driver(struct module *o
 
 	pr_debug("i2c-core: driver [%s] registered\n", driver->driver.name);
 
-	INIT_LIST_HEAD(&driver->clients);
 	/* Walk the adapters that are already present */
 	i2c_for_each_dev(driver, __process_new_driver);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/i2c/i2c-dev.c linux-libre-4.4.107-gnu/drivers/i2c/i2c-dev.c
--- linux-libre-4.4-gnu/drivers/i2c/i2c-dev.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/i2c/i2c-dev.c	2017-12-20 04:05:01.000000000 -0500
@@ -329,7 +329,7 @@ static noinline int i2cdev_ioctl_smbus(s
 		unsigned long arg)
 {
 	struct i2c_smbus_ioctl_data data_arg;
-	union i2c_smbus_data temp;
+	union i2c_smbus_data temp = {};
 	int datasize, res;
 
 	if (copy_from_user(&data_arg,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/i2c/Kconfig linux-libre-4.4.107-gnu/drivers/i2c/Kconfig
--- linux-libre-4.4-gnu/drivers/i2c/Kconfig	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/i2c/Kconfig	2017-12-20 04:05:01.000000000 -0500
@@ -59,7 +59,6 @@ config I2C_CHARDEV
 
 config I2C_MUX
 	tristate "I2C bus multiplexing support"
-	depends on HAS_IOMEM
 	help
 	  Say Y here if you want the I2C core to support the ability to
 	  handle multiplexed I2C bus topologies, by presenting each
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/i2c/muxes/i2c-mux-reg.c linux-libre-4.4.107-gnu/drivers/i2c/muxes/i2c-mux-reg.c
--- linux-libre-4.4-gnu/drivers/i2c/muxes/i2c-mux-reg.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/i2c/muxes/i2c-mux-reg.c	2017-12-20 04:05:01.000000000 -0500
@@ -150,7 +150,7 @@ static int i2c_mux_reg_probe_dt(struct r
 		mux->data.idle_in_use = true;
 
 	/* map address from "reg" if exists */
-	if (of_address_to_resource(np, 0, &res)) {
+	if (of_address_to_resource(np, 0, &res) == 0) {
 		mux->data.reg_size = resource_size(&res);
 		mux->data.reg = devm_ioremap_resource(&pdev->dev, &res);
 		if (IS_ERR(mux->data.reg))
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/i2c/muxes/Kconfig linux-libre-4.4.107-gnu/drivers/i2c/muxes/Kconfig
--- linux-libre-4.4-gnu/drivers/i2c/muxes/Kconfig	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/i2c/muxes/Kconfig	2017-12-20 04:05:01.000000000 -0500
@@ -63,6 +63,7 @@ config I2C_MUX_PINCTRL
 
 config I2C_MUX_REG
 	tristate "Register-based I2C multiplexer"
+	depends on HAS_IOMEM
 	help
 	  If you say yes to this option, support will be included for a
 	  register based I2C multiplexer. This driver provides access to
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/idle/intel_idle.c linux-libre-4.4.107-gnu/drivers/idle/intel_idle.c
--- linux-libre-4.4-gnu/drivers/idle/intel_idle.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/idle/intel_idle.c	2017-12-20 04:05:01.000000000 -0500
@@ -65,7 +65,7 @@
 #include <asm/mwait.h>
 #include <asm/msr.h>
 
-#define INTEL_IDLE_VERSION "0.4"
+#define INTEL_IDLE_VERSION "0.4.1"
 #define PREFIX "intel_idle: "
 
 static struct cpuidle_driver intel_idle_driver = {
@@ -716,6 +716,26 @@ static struct cpuidle_state avn_cstates[
 	{
 		.enter = NULL }
 };
+static struct cpuidle_state knl_cstates[] = {
+	{
+		.name = "C1-KNL",
+		.desc = "MWAIT 0x00",
+		.flags = MWAIT2flg(0x00),
+		.exit_latency = 1,
+		.target_residency = 2,
+		.enter = &intel_idle,
+		.enter_freeze = intel_idle_freeze },
+	{
+		.name = "C6-KNL",
+		.desc = "MWAIT 0x10",
+		.flags = MWAIT2flg(0x10) | CPUIDLE_FLAG_TLB_FLUSHED,
+		.exit_latency = 120,
+		.target_residency = 500,
+		.enter = &intel_idle,
+		.enter_freeze = intel_idle_freeze },
+	{
+		.enter = NULL }
+};
 
 /**
  * intel_idle
@@ -890,6 +910,10 @@ static const struct idle_cpu idle_cpu_av
 	.disable_promotion_to_c1e = true,
 };
 
+static const struct idle_cpu idle_cpu_knl = {
+	.state_table = knl_cstates,
+};
+
 #define ICPU(model, cpu) \
 	{ X86_VENDOR_INTEL, 6, model, X86_FEATURE_MWAIT, (unsigned long)&cpu }
 
@@ -921,6 +945,7 @@ static const struct x86_cpu_id intel_idl
 	ICPU(0x56, idle_cpu_bdw),
 	ICPU(0x4e, idle_cpu_skl),
 	ICPU(0x5e, idle_cpu_skl),
+	ICPU(0x57, idle_cpu_knl),
 	{}
 };
 MODULE_DEVICE_TABLE(x86cpu, intel_idle_ids);
@@ -994,36 +1019,92 @@ static void intel_idle_cpuidle_devices_u
 }
 
 /*
- * intel_idle_state_table_update()
- *
- * Update the default state_table for this CPU-id
+ * ivt_idle_state_table_update(void)
  *
- * Currently used to access tuned IVT multi-socket targets
+ * Tune IVT multi-socket targets
  * Assumption: num_sockets == (max_package_num + 1)
  */
-void intel_idle_state_table_update(void)
+static void ivt_idle_state_table_update(void)
 {
 	/* IVT uses a different table for 1-2, 3-4, and > 4 sockets */
-	if (boot_cpu_data.x86_model == 0x3e) { /* IVT */
-		int cpu, package_num, num_sockets = 1;
+	int cpu, package_num, num_sockets = 1;
 
-		for_each_online_cpu(cpu) {
-			package_num = topology_physical_package_id(cpu);
-			if (package_num + 1 > num_sockets) {
-				num_sockets = package_num + 1;
+	for_each_online_cpu(cpu) {
+		package_num = topology_physical_package_id(cpu);
+		if (package_num + 1 > num_sockets) {
+			num_sockets = package_num + 1;
 
-				if (num_sockets > 4) {
-					cpuidle_state_table = ivt_cstates_8s;
-					return;
-				}
+			if (num_sockets > 4) {
+				cpuidle_state_table = ivt_cstates_8s;
+				return;
 			}
 		}
+	}
 
-		if (num_sockets > 2)
-			cpuidle_state_table = ivt_cstates_4s;
-		/* else, 1 and 2 socket systems use default ivt_cstates */
+	if (num_sockets > 2)
+		cpuidle_state_table = ivt_cstates_4s;
+
+	/* else, 1 and 2 socket systems use default ivt_cstates */
+}
+/*
+ * sklh_idle_state_table_update(void)
+ *
+ * On SKL-H (model 0x5e) disable C8 and C9 if:
+ * C10 is enabled and SGX disabled
+ */
+static void sklh_idle_state_table_update(void)
+{
+	unsigned long long msr;
+	unsigned int eax, ebx, ecx, edx;
+
+
+	/* if PC10 disabled via cmdline intel_idle.max_cstate=7 or shallower */
+	if (max_cstate <= 7)
+		return;
+
+	/* if PC10 not present in CPUID.MWAIT.EDX */
+	if ((mwait_substates & (0xF << 28)) == 0)
+		return;
+
+	rdmsrl(MSR_NHM_SNB_PKG_CST_CFG_CTL, msr);
+
+	/* PC10 is not enabled in PKG C-state limit */
+	if ((msr & 0xF) != 8)
+		return;
+
+	ecx = 0;
+	cpuid(7, &eax, &ebx, &ecx, &edx);
+
+	/* if SGX is present */
+	if (ebx & (1 << 2)) {
+
+		rdmsrl(MSR_IA32_FEATURE_CONTROL, msr);
+
+		/* if SGX is enabled */
+		if (msr & (1 << 18))
+			return;
+	}
+
+	skl_cstates[5].disabled = 1;	/* C8-SKL */
+	skl_cstates[6].disabled = 1;	/* C9-SKL */
+}
+/*
+ * intel_idle_state_table_update()
+ *
+ * Update the default state_table for this CPU-id
+ */
+
+static void intel_idle_state_table_update(void)
+{
+	switch (boot_cpu_data.x86_model) {
+
+	case 0x3e: /* IVT */
+		ivt_idle_state_table_update();
+		break;
+	case 0x5e: /* SKL-H */
+		sklh_idle_state_table_update();
+		break;
 	}
-	return;
 }
 
 /*
@@ -1063,6 +1144,14 @@ static int __init intel_idle_cpuidle_dri
 		if (num_substates == 0)
 			continue;
 
+		/* if state marked as disabled, skip it */
+		if (cpuidle_state_table[cstate].disabled != 0) {
+			pr_debug(PREFIX "state %s is disabled",
+				cpuidle_state_table[cstate].name);
+			continue;
+		}
+
+
 		if (((mwait_cstate + 1) > 2) &&
 			!boot_cpu_has(X86_FEATURE_NONSTOP_TSC))
 			mark_tsc_unstable("TSC halts in idle"
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/iio/accel/bmc150-accel-core.c linux-libre-4.4.107-gnu/drivers/iio/accel/bmc150-accel-core.c
--- linux-libre-4.4-gnu/drivers/iio/accel/bmc150-accel-core.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/iio/accel/bmc150-accel-core.c	2017-12-20 04:05:01.000000000 -0500
@@ -68,6 +68,9 @@
 #define BMC150_ACCEL_REG_PMU_BW		0x10
 #define BMC150_ACCEL_DEF_BW			125
 
+#define BMC150_ACCEL_REG_RESET			0x14
+#define BMC150_ACCEL_RESET_VAL			0xB6
+
 #define BMC150_ACCEL_REG_INT_MAP_0		0x19
 #define BMC150_ACCEL_INT_MAP_0_BIT_SLOPE	BIT(2)
 
@@ -191,7 +194,6 @@ struct bmc150_accel_data {
 	struct device *dev;
 	int irq;
 	struct bmc150_accel_interrupt interrupts[BMC150_ACCEL_INTERRUPTS];
-	atomic_t active_intr;
 	struct bmc150_accel_trigger triggers[BMC150_ACCEL_TRIGGERS];
 	struct mutex mutex;
 	u8 fifo_mode, watermark;
@@ -486,11 +488,6 @@ static int bmc150_accel_set_interrupt(st
 		goto out_fix_power_state;
 	}
 
-	if (state)
-		atomic_inc(&data->active_intr);
-	else
-		atomic_dec(&data->active_intr);
-
 	return 0;
 
 out_fix_power_state:
@@ -547,7 +544,7 @@ static int bmc150_accel_get_axis(struct
 {
 	int ret;
 	int axis = chan->scan_index;
-	unsigned int raw_val;
+	__le16 raw_val;
 
 	mutex_lock(&data->mutex);
 	ret = bmc150_accel_set_power_state(data, true);
@@ -557,14 +554,14 @@ static int bmc150_accel_get_axis(struct
 	}
 
 	ret = regmap_bulk_read(data->regmap, BMC150_ACCEL_AXIS_TO_REG(axis),
-			       &raw_val, 2);
+			       &raw_val, sizeof(raw_val));
 	if (ret < 0) {
 		dev_err(data->dev, "Error reading axis %d\n", axis);
 		bmc150_accel_set_power_state(data, false);
 		mutex_unlock(&data->mutex);
 		return ret;
 	}
-	*val = sign_extend32(raw_val >> chan->scan_type.shift,
+	*val = sign_extend32(le16_to_cpu(raw_val) >> chan->scan_type.shift,
 			     chan->scan_type.realbits - 1);
 	ret = bmc150_accel_set_power_state(data, false);
 	mutex_unlock(&data->mutex);
@@ -988,6 +985,7 @@ static const struct iio_event_spec bmc15
 		.realbits = (bits),					\
 		.storagebits = 16,					\
 		.shift = 16 - (bits),					\
+		.endianness = IIO_LE,					\
 	},								\
 	.event_spec = &bmc150_accel_event,				\
 	.num_event_specs = 1						\
@@ -1486,6 +1484,14 @@ static int bmc150_accel_chip_init(struct
 	int ret, i;
 	unsigned int val;
 
+	/*
+	 * Reset chip to get it in a known good state. A delay of 1.8ms after
+	 * reset is required according to the data sheets of supported chips.
+	 */
+	regmap_write(data->regmap, BMC150_ACCEL_REG_RESET,
+		     BMC150_ACCEL_RESET_VAL);
+	usleep_range(1800, 2500);
+
 	ret = regmap_read(data->regmap, BMC150_ACCEL_REG_CHIP_ID, &val);
 	if (ret < 0) {
 		dev_err(data->dev,
@@ -1692,8 +1698,7 @@ static int bmc150_accel_resume(struct de
 	struct bmc150_accel_data *data = iio_priv(indio_dev);
 
 	mutex_lock(&data->mutex);
-	if (atomic_read(&data->active_intr))
-		bmc150_accel_set_mode(data, BMC150_ACCEL_SLEEP_MODE_NORMAL, 0);
+	bmc150_accel_set_mode(data, BMC150_ACCEL_SLEEP_MODE_NORMAL, 0);
 	bmc150_accel_fifo_set_mode(data);
 	mutex_unlock(&data->mutex);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/iio/accel/Kconfig linux-libre-4.4.107-gnu/drivers/iio/accel/Kconfig
--- linux-libre-4.4-gnu/drivers/iio/accel/Kconfig	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/iio/accel/Kconfig	2017-12-20 04:05:01.000000000 -0500
@@ -173,6 +173,7 @@ config STK8312
 config STK8BA50
 	tristate "Sensortek STK8BA50 3-Axis Accelerometer Driver"
 	depends on I2C
+	depends on IIO_TRIGGER
 	help
 	  Say yes here to get support for the Sensortek STK8BA50 3-axis
 	  accelerometer.
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/iio/accel/kxsd9.c linux-libre-4.4.107-gnu/drivers/iio/accel/kxsd9.c
--- linux-libre-4.4-gnu/drivers/iio/accel/kxsd9.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/iio/accel/kxsd9.c	2017-12-20 04:05:01.000000000 -0500
@@ -81,7 +81,7 @@ static int kxsd9_write_scale(struct iio_
 
 	mutex_lock(&st->buf_lock);
 	ret = spi_w8r8(st->us, KXSD9_READ(KXSD9_REG_CTRL_C));
-	if (ret)
+	if (ret < 0)
 		goto error_ret;
 	st->tx[0] = KXSD9_WRITE(KXSD9_REG_CTRL_C);
 	st->tx[1] = (ret & ~KXSD9_FS_MASK) | i;
@@ -160,11 +160,13 @@ static int kxsd9_read_raw(struct iio_dev
 		if (ret < 0)
 			goto error_ret;
 		*val = ret;
+		ret = IIO_VAL_INT;
 		break;
 	case IIO_CHAN_INFO_SCALE:
 		ret = spi_w8r8(st->us, KXSD9_READ(KXSD9_REG_CTRL_C));
-		if (ret)
+		if (ret < 0)
 			goto error_ret;
+		*val = 0;
 		*val2 = kxsd9_micro_scales[ret & KXSD9_FS_MASK];
 		ret = IIO_VAL_INT_PLUS_MICRO;
 		break;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/iio/adc/ad7266.c linux-libre-4.4.107-gnu/drivers/iio/adc/ad7266.c
--- linux-libre-4.4-gnu/drivers/iio/adc/ad7266.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/iio/adc/ad7266.c	2017-12-20 04:05:01.000000000 -0500
@@ -396,8 +396,8 @@ static int ad7266_probe(struct spi_devic
 
 	st = iio_priv(indio_dev);
 
-	st->reg = devm_regulator_get(&spi->dev, "vref");
-	if (!IS_ERR_OR_NULL(st->reg)) {
+	st->reg = devm_regulator_get_optional(&spi->dev, "vref");
+	if (!IS_ERR(st->reg)) {
 		ret = regulator_enable(st->reg);
 		if (ret)
 			return ret;
@@ -408,6 +408,9 @@ static int ad7266_probe(struct spi_devic
 
 		st->vref_mv = ret / 1000;
 	} else {
+		/* Any other error indicates that the regulator does exist */
+		if (PTR_ERR(st->reg) != -ENODEV)
+			return PTR_ERR(st->reg);
 		/* Use internal reference */
 		st->vref_mv = 2500;
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/iio/adc/ad7793.c linux-libre-4.4.107-gnu/drivers/iio/adc/ad7793.c
--- linux-libre-4.4-gnu/drivers/iio/adc/ad7793.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/iio/adc/ad7793.c	2017-12-20 04:05:01.000000000 -0500
@@ -257,7 +257,7 @@ static int ad7793_setup(struct iio_dev *
 	unsigned int vref_mv)
 {
 	struct ad7793_state *st = iio_priv(indio_dev);
-	int i, ret = -1;
+	int i, ret;
 	unsigned long long scale_uv;
 	u32 id;
 
@@ -266,7 +266,7 @@ static int ad7793_setup(struct iio_dev *
 		return ret;
 
 	/* reset the serial interface */
-	ret = spi_write(st->sd.spi, (u8 *)&ret, sizeof(ret));
+	ret = ad_sd_reset(&st->sd, 32);
 	if (ret < 0)
 		goto out;
 	usleep_range(500, 2000); /* Wait for at least 500us */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/iio/adc/ad799x.c linux-libre-4.4.107-gnu/drivers/iio/adc/ad799x.c
--- linux-libre-4.4-gnu/drivers/iio/adc/ad799x.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/iio/adc/ad799x.c	2017-12-20 04:05:01.000000000 -0500
@@ -533,6 +533,7 @@ static struct attribute_group ad799x_eve
 static const struct iio_info ad7991_info = {
 	.read_raw = &ad799x_read_raw,
 	.driver_module = THIS_MODULE,
+	.update_scan_mode = ad799x_update_scan_mode,
 };
 
 static const struct iio_info ad7993_4_7_8_noirq_info = {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/iio/adc/ad_sigma_delta.c linux-libre-4.4.107-gnu/drivers/iio/adc/ad_sigma_delta.c
--- linux-libre-4.4-gnu/drivers/iio/adc/ad_sigma_delta.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/iio/adc/ad_sigma_delta.c	2017-12-20 04:05:01.000000000 -0500
@@ -177,6 +177,34 @@ out:
 }
 EXPORT_SYMBOL_GPL(ad_sd_read_reg);
 
+/**
+ * ad_sd_reset() - Reset the serial interface
+ *
+ * @sigma_delta: The sigma delta device
+ * @reset_length: Number of SCLKs with DIN = 1
+ *
+ * Returns 0 on success, an error code otherwise.
+ **/
+int ad_sd_reset(struct ad_sigma_delta *sigma_delta,
+	unsigned int reset_length)
+{
+	uint8_t *buf;
+	unsigned int size;
+	int ret;
+
+	size = DIV_ROUND_UP(reset_length, 8);
+	buf = kcalloc(size, sizeof(*buf), GFP_KERNEL);
+	if (!buf)
+		return -ENOMEM;
+
+	memset(buf, 0xff, size);
+	ret = spi_write(sigma_delta->spi, buf, size);
+	kfree(buf);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(ad_sd_reset);
+
 static int ad_sd_calibrate(struct ad_sigma_delta *sigma_delta,
 	unsigned int mode, unsigned int channel)
 {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/iio/adc/at91_adc.c linux-libre-4.4.107-gnu/drivers/iio/adc/at91_adc.c
--- linux-libre-4.4-gnu/drivers/iio/adc/at91_adc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/iio/adc/at91_adc.c	2017-12-20 04:05:01.000000000 -0500
@@ -381,8 +381,8 @@ static irqreturn_t at91_adc_rl_interrupt
 		st->ts_bufferedmeasure = false;
 		input_report_key(st->ts_input, BTN_TOUCH, 0);
 		input_sync(st->ts_input);
-	} else if (status & AT91_ADC_EOC(3)) {
-		/* Conversion finished */
+	} else if (status & AT91_ADC_EOC(3) && st->ts_input) {
+		/* Conversion finished and we've a touchscreen */
 		if (st->ts_bufferedmeasure) {
 			/*
 			 * Last measurement is always discarded, since it can
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/iio/adc/axp288_adc.c linux-libre-4.4.107-gnu/drivers/iio/adc/axp288_adc.c
--- linux-libre-4.4-gnu/drivers/iio/adc/axp288_adc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/iio/adc/axp288_adc.c	2017-12-20 04:05:01.000000000 -0500
@@ -28,8 +28,6 @@
 #include <linux/iio/driver.h>
 
 #define AXP288_ADC_EN_MASK		0xF1
-#define AXP288_ADC_TS_PIN_GPADC		0xF2
-#define AXP288_ADC_TS_PIN_ON		0xF3
 
 enum axp288_adc_id {
 	AXP288_ADC_TS,
@@ -123,16 +121,6 @@ static int axp288_adc_read_channel(int *
 	return IIO_VAL_INT;
 }
 
-static int axp288_adc_set_ts(struct regmap *regmap, unsigned int mode,
-				unsigned long address)
-{
-	/* channels other than GPADC do not need to switch TS pin */
-	if (address != AXP288_GP_ADC_H)
-		return 0;
-
-	return regmap_write(regmap, AXP288_ADC_TS_PIN_CTRL, mode);
-}
-
 static int axp288_adc_read_raw(struct iio_dev *indio_dev,
 			struct iio_chan_spec const *chan,
 			int *val, int *val2, long mask)
@@ -143,16 +131,7 @@ static int axp288_adc_read_raw(struct ii
 	mutex_lock(&indio_dev->mlock);
 	switch (mask) {
 	case IIO_CHAN_INFO_RAW:
-		if (axp288_adc_set_ts(info->regmap, AXP288_ADC_TS_PIN_GPADC,
-					chan->address)) {
-			dev_err(&indio_dev->dev, "GPADC mode\n");
-			ret = -EINVAL;
-			break;
-		}
 		ret = axp288_adc_read_channel(val, chan->address, info->regmap);
-		if (axp288_adc_set_ts(info->regmap, AXP288_ADC_TS_PIN_ON,
-						chan->address))
-			dev_err(&indio_dev->dev, "TS pin restore\n");
 		break;
 	default:
 		ret = -EINVAL;
@@ -162,15 +141,6 @@ static int axp288_adc_read_raw(struct ii
 	return ret;
 }
 
-static int axp288_adc_set_state(struct regmap *regmap)
-{
-	/* ADC should be always enabled for internal FG to function */
-	if (regmap_write(regmap, AXP288_ADC_TS_PIN_CTRL, AXP288_ADC_TS_PIN_ON))
-		return -EIO;
-
-	return regmap_write(regmap, AXP20X_ADC_EN1, AXP288_ADC_EN_MASK);
-}
-
 static const struct iio_info axp288_adc_iio_info = {
 	.read_raw = &axp288_adc_read_raw,
 	.driver_module = THIS_MODULE,
@@ -199,7 +169,7 @@ static int axp288_adc_probe(struct platf
 	 * Set ADC to enabled state at all time, including system suspend.
 	 * otherwise internal fuel gauge functionality may be affected.
 	 */
-	ret = axp288_adc_set_state(axp20x->regmap);
+	ret = regmap_write(info->regmap, AXP20X_ADC_EN1, AXP288_ADC_EN_MASK);
 	if (ret) {
 		dev_err(&pdev->dev, "unable to enable ADC device\n");
 		return ret;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/iio/adc/Kconfig linux-libre-4.4.107-gnu/drivers/iio/adc/Kconfig
--- linux-libre-4.4-gnu/drivers/iio/adc/Kconfig	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/iio/adc/Kconfig	2017-12-20 04:05:01.000000000 -0500
@@ -306,6 +306,7 @@ config QCOM_SPMI_VADC
 config ROCKCHIP_SARADC
 	tristate "Rockchip SARADC driver"
 	depends on ARCH_ROCKCHIP || (ARM && COMPILE_TEST)
+	depends on RESET_CONTROLLER
 	help
 	  Say yes here to build support for the SARADC found in SoCs from
 	  Rockchip.
@@ -372,6 +373,7 @@ config TWL6030_GPADC
 config VF610_ADC
 	tristate "Freescale vf610 ADC driver"
 	depends on OF
+	depends on HAS_IOMEM
 	select IIO_BUFFER
 	select IIO_TRIGGERED_BUFFER
 	help
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/iio/adc/mcp320x.c linux-libre-4.4.107-gnu/drivers/iio/adc/mcp320x.c
--- linux-libre-4.4-gnu/drivers/iio/adc/mcp320x.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/iio/adc/mcp320x.c	2017-12-20 04:05:01.000000000 -0500
@@ -17,6 +17,8 @@
  * MCP3204
  * MCP3208
  * ------------
+ * 13 bit converter
+ * MCP3301
  *
  * Datasheet can be found here:
  * http://ww1.microchip.com/downloads/en/DeviceDoc/21293C.pdf  mcp3001
@@ -96,7 +98,7 @@ static int mcp320x_channel_to_tx_data(in
 }
 
 static int mcp320x_adc_conversion(struct mcp320x *adc, u8 channel,
-				  bool differential, int device_index)
+				  bool differential, int device_index, int *val)
 {
 	int ret;
 
@@ -117,19 +119,25 @@ static int mcp320x_adc_conversion(struct
 
 	switch (device_index) {
 	case mcp3001:
-		return (adc->rx_buf[0] << 5 | adc->rx_buf[1] >> 3);
+		*val = (adc->rx_buf[0] << 5 | adc->rx_buf[1] >> 3);
+		return 0;
 	case mcp3002:
 	case mcp3004:
 	case mcp3008:
-		return (adc->rx_buf[0] << 2 | adc->rx_buf[1] >> 6);
+		*val = (adc->rx_buf[0] << 2 | adc->rx_buf[1] >> 6);
+		return 0;
 	case mcp3201:
-		return (adc->rx_buf[0] << 7 | adc->rx_buf[1] >> 1);
+		*val = (adc->rx_buf[0] << 7 | adc->rx_buf[1] >> 1);
+		return 0;
 	case mcp3202:
 	case mcp3204:
 	case mcp3208:
-		return (adc->rx_buf[0] << 4 | adc->rx_buf[1] >> 4);
+		*val = (adc->rx_buf[0] << 4 | adc->rx_buf[1] >> 4);
+		return 0;
 	case mcp3301:
-		return sign_extend32((adc->rx_buf[0] & 0x1f) << 8 | adc->rx_buf[1], 12);
+		*val = sign_extend32((adc->rx_buf[0] & 0x1f) << 8
+				    | adc->rx_buf[1], 12);
+		return 0;
 	default:
 		return -EINVAL;
 	}
@@ -150,12 +158,10 @@ static int mcp320x_read_raw(struct iio_d
 	switch (mask) {
 	case IIO_CHAN_INFO_RAW:
 		ret = mcp320x_adc_conversion(adc, channel->address,
-			channel->differential, device_index);
-
+			channel->differential, device_index, val);
 		if (ret < 0)
 			goto out;
 
-		*val = ret;
 		ret = IIO_VAL_INT;
 		break;
 
@@ -304,6 +310,7 @@ static int mcp320x_probe(struct spi_devi
 	indio_dev->name = spi_get_device_id(spi)->name;
 	indio_dev->modes = INDIO_DIRECT_MODE;
 	indio_dev->info = &mcp320x_info;
+	spi_set_drvdata(spi, indio_dev);
 
 	chip_info = &mcp320x_chip_infos[spi_get_device_id(spi)->driver_data];
 	indio_dev->channels = chip_info->channels;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/iio/adc/rockchip_saradc.c linux-libre-4.4.107-gnu/drivers/iio/adc/rockchip_saradc.c
--- linux-libre-4.4-gnu/drivers/iio/adc/rockchip_saradc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/iio/adc/rockchip_saradc.c	2017-12-20 04:05:01.000000000 -0500
@@ -21,6 +21,8 @@
 #include <linux/of_device.h>
 #include <linux/clk.h>
 #include <linux/completion.h>
+#include <linux/delay.h>
+#include <linux/reset.h>
 #include <linux/regulator/consumer.h>
 #include <linux/iio/iio.h>
 
@@ -53,6 +55,7 @@ struct rockchip_saradc {
 	struct clk		*clk;
 	struct completion	completion;
 	struct regulator	*vref;
+	struct reset_control	*reset;
 	const struct rockchip_saradc_data *data;
 	u16			last_val;
 };
@@ -171,6 +174,16 @@ static const struct of_device_id rockchi
 };
 MODULE_DEVICE_TABLE(of, rockchip_saradc_match);
 
+/**
+ * Reset SARADC Controller.
+ */
+static void rockchip_saradc_reset_controller(struct reset_control *reset)
+{
+	reset_control_assert(reset);
+	usleep_range(10, 20);
+	reset_control_deassert(reset);
+}
+
 static int rockchip_saradc_probe(struct platform_device *pdev)
 {
 	struct rockchip_saradc *info = NULL;
@@ -199,6 +212,20 @@ static int rockchip_saradc_probe(struct
 	if (IS_ERR(info->regs))
 		return PTR_ERR(info->regs);
 
+	/*
+	 * The reset should be an optional property, as it should work
+	 * with old devicetrees as well
+	 */
+	info->reset = devm_reset_control_get(&pdev->dev, "saradc-apb");
+	if (IS_ERR(info->reset)) {
+		ret = PTR_ERR(info->reset);
+		if (ret != -ENOENT)
+			return ret;
+
+		dev_dbg(&pdev->dev, "no reset control found\n");
+		info->reset = NULL;
+	}
+
 	init_completion(&info->completion);
 
 	irq = platform_get_irq(pdev, 0);
@@ -233,6 +260,9 @@ static int rockchip_saradc_probe(struct
 		return PTR_ERR(info->vref);
 	}
 
+	if (info->reset)
+		rockchip_saradc_reset_controller(info->reset);
+
 	/*
 	 * Use a default value for the converter clock.
 	 * This may become user-configurable in the future.
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/iio/adc/ti_am335x_adc.c linux-libre-4.4.107-gnu/drivers/iio/adc/ti_am335x_adc.c
--- linux-libre-4.4-gnu/drivers/iio/adc/ti_am335x_adc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/iio/adc/ti_am335x_adc.c	2017-12-20 04:05:01.000000000 -0500
@@ -32,6 +32,7 @@
 
 struct tiadc_device {
 	struct ti_tscadc_dev *mfd_tscadc;
+	struct mutex fifo1_lock; /* to protect fifo access */
 	int channels;
 	u8 channel_line[8];
 	u8 channel_step[8];
@@ -150,7 +151,9 @@ static irqreturn_t tiadc_irq_h(int irq,
 {
 	struct iio_dev *indio_dev = private;
 	struct tiadc_device *adc_dev = iio_priv(indio_dev);
-	unsigned int status, config;
+	unsigned int status, config, adc_fsm;
+	unsigned short count = 0;
+
 	status = tiadc_readl(adc_dev, REG_IRQSTATUS);
 
 	/*
@@ -164,6 +167,15 @@ static irqreturn_t tiadc_irq_h(int irq,
 		tiadc_writel(adc_dev, REG_CTRL, config);
 		tiadc_writel(adc_dev, REG_IRQSTATUS, IRQENB_FIFO1OVRRUN
 				| IRQENB_FIFO1UNDRFLW | IRQENB_FIFO1THRES);
+
+		/* wait for idle state.
+		 * ADC needs to finish the current conversion
+		 * before disabling the module
+		 */
+		do {
+			adc_fsm = tiadc_readl(adc_dev, REG_ADCFSM);
+		} while (adc_fsm != 0x10 && count++ < 100);
+
 		tiadc_writel(adc_dev, REG_CTRL, (config | CNTRLREG_TSCSSENB));
 		return IRQ_HANDLED;
 	} else if (status & IRQENB_FIFO1THRES) {
@@ -289,7 +301,7 @@ static int tiadc_iio_buffered_hardware_s
 		goto error_kfifo_free;
 
 	indio_dev->setup_ops = setup_ops;
-	indio_dev->modes |= INDIO_BUFFER_HARDWARE;
+	indio_dev->modes |= INDIO_BUFFER_SOFTWARE;
 
 	return 0;
 
@@ -360,6 +372,7 @@ static int tiadc_read_raw(struct iio_dev
 		int *val, int *val2, long mask)
 {
 	struct tiadc_device *adc_dev = iio_priv(indio_dev);
+	int ret = IIO_VAL_INT;
 	int i, map_val;
 	unsigned int fifo1count, read, stepid;
 	bool found = false;
@@ -373,13 +386,14 @@ static int tiadc_read_raw(struct iio_dev
 	if (!step_en)
 		return -EINVAL;
 
+	mutex_lock(&adc_dev->fifo1_lock);
 	fifo1count = tiadc_readl(adc_dev, REG_FIFO1CNT);
 	while (fifo1count--)
 		tiadc_readl(adc_dev, REG_FIFO1);
 
 	am335x_tsc_se_set_once(adc_dev->mfd_tscadc, step_en);
 
-	timeout = jiffies + usecs_to_jiffies
+	timeout = jiffies + msecs_to_jiffies
 				(IDLE_TIMEOUT * adc_dev->channels);
 	/* Wait for Fifo threshold interrupt */
 	while (1) {
@@ -389,7 +403,8 @@ static int tiadc_read_raw(struct iio_dev
 
 		if (time_after(jiffies, timeout)) {
 			am335x_tsc_se_adc_done(adc_dev->mfd_tscadc);
-			return -EAGAIN;
+			ret = -EAGAIN;
+			goto err_unlock;
 		}
 	}
 	map_val = adc_dev->channel_step[chan->scan_index];
@@ -415,8 +430,11 @@ static int tiadc_read_raw(struct iio_dev
 	am335x_tsc_se_adc_done(adc_dev->mfd_tscadc);
 
 	if (found == false)
-		return -EBUSY;
-	return IIO_VAL_INT;
+		ret =  -EBUSY;
+
+err_unlock:
+	mutex_unlock(&adc_dev->fifo1_lock);
+	return ret;
 }
 
 static const struct iio_info tiadc_info = {
@@ -485,6 +503,7 @@ static int tiadc_probe(struct platform_d
 
 	tiadc_step_config(indio_dev);
 	tiadc_writel(adc_dev, REG_FIFO1THR, FIFO1_THRESHOLD);
+	mutex_init(&adc_dev->fifo1_lock);
 
 	err = tiadc_channel_init(indio_dev, adc_dev->channels);
 	if (err < 0)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/iio/adc/twl4030-madc.c linux-libre-4.4.107-gnu/drivers/iio/adc/twl4030-madc.c
--- linux-libre-4.4-gnu/drivers/iio/adc/twl4030-madc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/iio/adc/twl4030-madc.c	2017-12-20 04:05:01.000000000 -0500
@@ -866,8 +866,10 @@ static int twl4030_madc_probe(struct pla
 
 	/* Enable 3v1 bias regulator for MADC[3:6] */
 	madc->usb3v1 = devm_regulator_get(madc->dev, "vusb3v1");
-	if (IS_ERR(madc->usb3v1))
-		return -ENODEV;
+	if (IS_ERR(madc->usb3v1)) {
+		ret = -ENODEV;
+		goto err_i2c;
+	}
 
 	ret = regulator_enable(madc->usb3v1);
 	if (ret)
@@ -876,11 +878,13 @@ static int twl4030_madc_probe(struct pla
 	ret = iio_device_register(iio_dev);
 	if (ret) {
 		dev_err(&pdev->dev, "could not register iio device\n");
-		goto err_i2c;
+		goto err_usb3v1;
 	}
 
 	return 0;
 
+err_usb3v1:
+	regulator_disable(madc->usb3v1);
 err_i2c:
 	twl4030_madc_set_current_generator(madc, 0, 0);
 err_current_generator:
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/iio/adc/vf610_adc.c linux-libre-4.4.107-gnu/drivers/iio/adc/vf610_adc.c
--- linux-libre-4.4-gnu/drivers/iio/adc/vf610_adc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/iio/adc/vf610_adc.c	2017-12-20 04:05:01.000000000 -0500
@@ -77,7 +77,7 @@
 #define VF610_ADC_ADSTS_MASK		0x300
 #define VF610_ADC_ADLPC_EN		0x80
 #define VF610_ADC_ADHSC_EN		0x400
-#define VF610_ADC_REFSEL_VALT		0x100
+#define VF610_ADC_REFSEL_VALT		0x800
 #define VF610_ADC_REFSEL_VBG		0x1000
 #define VF610_ADC_ADTRG_HARD		0x2000
 #define VF610_ADC_AVGS_8		0x4000
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/iio/adc/xilinx-xadc-core.c linux-libre-4.4.107-gnu/drivers/iio/adc/xilinx-xadc-core.c
--- linux-libre-4.4-gnu/drivers/iio/adc/xilinx-xadc-core.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/iio/adc/xilinx-xadc-core.c	2017-12-20 04:05:01.000000000 -0500
@@ -1208,7 +1208,7 @@ static int xadc_probe(struct platform_de
 
 	ret = xadc->ops->setup(pdev, indio_dev, irq);
 	if (ret)
-		goto err_free_samplerate_trigger;
+		goto err_clk_disable_unprepare;
 
 	ret = request_irq(irq, xadc->ops->interrupt_handler, 0,
 			dev_name(&pdev->dev), indio_dev);
@@ -1268,6 +1268,8 @@ static int xadc_probe(struct platform_de
 
 err_free_irq:
 	free_irq(irq, indio_dev);
+err_clk_disable_unprepare:
+	clk_disable_unprepare(xadc->clk);
 err_free_samplerate_trigger:
 	if (xadc->ops->flags & XADC_FLAGS_BUFFERED)
 		iio_trigger_free(xadc->samplerate_trigger);
@@ -1277,8 +1279,6 @@ err_free_convst_trigger:
 err_triggered_buffer_cleanup:
 	if (xadc->ops->flags & XADC_FLAGS_BUFFERED)
 		iio_triggered_buffer_cleanup(indio_dev);
-err_clk_disable_unprepare:
-	clk_disable_unprepare(xadc->clk);
 err_device_free:
 	kfree(indio_dev->channels);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/iio/common/hid-sensors/hid-sensor-attributes.c linux-libre-4.4.107-gnu/drivers/iio/common/hid-sensors/hid-sensor-attributes.c
--- linux-libre-4.4-gnu/drivers/iio/common/hid-sensors/hid-sensor-attributes.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/iio/common/hid-sensors/hid-sensor-attributes.c	2017-12-20 04:05:01.000000000 -0500
@@ -30,34 +30,34 @@ static struct {
 	u32 usage_id;
 	int unit; /* 0 for default others from HID sensor spec */
 	int scale_val0; /* scale, whole number */
-	int scale_val1; /* scale, fraction in micros */
+	int scale_val1; /* scale, fraction in nanos */
 } unit_conversion[] = {
-	{HID_USAGE_SENSOR_ACCEL_3D, 0, 9, 806650},
+	{HID_USAGE_SENSOR_ACCEL_3D, 0, 9, 806650000},
 	{HID_USAGE_SENSOR_ACCEL_3D,
 		HID_USAGE_SENSOR_UNITS_METERS_PER_SEC_SQRD, 1, 0},
 	{HID_USAGE_SENSOR_ACCEL_3D,
-		HID_USAGE_SENSOR_UNITS_G, 9, 806650},
+		HID_USAGE_SENSOR_UNITS_G, 9, 806650000},
 
-	{HID_USAGE_SENSOR_GYRO_3D, 0, 0, 17453},
+	{HID_USAGE_SENSOR_GYRO_3D, 0, 0, 17453293},
 	{HID_USAGE_SENSOR_GYRO_3D,
 		HID_USAGE_SENSOR_UNITS_RADIANS_PER_SECOND, 1, 0},
 	{HID_USAGE_SENSOR_GYRO_3D,
-		HID_USAGE_SENSOR_UNITS_DEGREES_PER_SECOND, 0, 17453},
+		HID_USAGE_SENSOR_UNITS_DEGREES_PER_SECOND, 0, 17453293},
 
-	{HID_USAGE_SENSOR_COMPASS_3D, 0, 0, 1000},
+	{HID_USAGE_SENSOR_COMPASS_3D, 0, 0, 1000000},
 	{HID_USAGE_SENSOR_COMPASS_3D, HID_USAGE_SENSOR_UNITS_GAUSS, 1, 0},
 
-	{HID_USAGE_SENSOR_INCLINOMETER_3D, 0, 0, 17453},
+	{HID_USAGE_SENSOR_INCLINOMETER_3D, 0, 0, 17453293},
 	{HID_USAGE_SENSOR_INCLINOMETER_3D,
-		HID_USAGE_SENSOR_UNITS_DEGREES, 0, 17453},
+		HID_USAGE_SENSOR_UNITS_DEGREES, 0, 17453293},
 	{HID_USAGE_SENSOR_INCLINOMETER_3D,
 		HID_USAGE_SENSOR_UNITS_RADIANS, 1, 0},
 
 	{HID_USAGE_SENSOR_ALS, 0, 1, 0},
 	{HID_USAGE_SENSOR_ALS, HID_USAGE_SENSOR_UNITS_LUX, 1, 0},
 
-	{HID_USAGE_SENSOR_PRESSURE, 0, 100000, 0},
-	{HID_USAGE_SENSOR_PRESSURE, HID_USAGE_SENSOR_UNITS_PASCAL, 1, 0},
+	{HID_USAGE_SENSOR_PRESSURE, 0, 100, 0},
+	{HID_USAGE_SENSOR_PRESSURE, HID_USAGE_SENSOR_UNITS_PASCAL, 0, 1000000},
 };
 
 static int pow_10(unsigned power)
@@ -266,15 +266,15 @@ EXPORT_SYMBOL(hid_sensor_write_raw_hyst_
 /*
  * This fuction applies the unit exponent to the scale.
  * For example:
- * 9.806650 ->exp:2-> val0[980]val1[665000]
- * 9.000806 ->exp:2-> val0[900]val1[80600]
- * 0.174535 ->exp:2-> val0[17]val1[453500]
- * 1.001745 ->exp:0-> val0[1]val1[1745]
- * 1.001745 ->exp:2-> val0[100]val1[174500]
- * 1.001745 ->exp:4-> val0[10017]val1[450000]
- * 9.806650 ->exp:-2-> val0[0]val1[98066]
+ * 9.806650000 ->exp:2-> val0[980]val1[665000000]
+ * 9.000806000 ->exp:2-> val0[900]val1[80600000]
+ * 0.174535293 ->exp:2-> val0[17]val1[453529300]
+ * 1.001745329 ->exp:0-> val0[1]val1[1745329]
+ * 1.001745329 ->exp:2-> val0[100]val1[174532900]
+ * 1.001745329 ->exp:4-> val0[10017]val1[453290000]
+ * 9.806650000 ->exp:-2-> val0[0]val1[98066500]
  */
-static void adjust_exponent_micro(int *val0, int *val1, int scale0,
+static void adjust_exponent_nano(int *val0, int *val1, int scale0,
 				  int scale1, int exp)
 {
 	int i;
@@ -285,32 +285,32 @@ static void adjust_exponent_micro(int *v
 	if (exp > 0) {
 		*val0 = scale0 * pow_10(exp);
 		res = 0;
-		if (exp > 6) {
+		if (exp > 9) {
 			*val1 = 0;
 			return;
 		}
 		for (i = 0; i < exp; ++i) {
-			x = scale1 / pow_10(5 - i);
+			x = scale1 / pow_10(8 - i);
 			res += (pow_10(exp - 1 - i) * x);
-			scale1 = scale1 % pow_10(5 - i);
+			scale1 = scale1 % pow_10(8 - i);
 		}
 		*val0 += res;
 			*val1 = scale1 * pow_10(exp);
 	} else if (exp < 0) {
 		exp = abs(exp);
-		if (exp > 6) {
+		if (exp > 9) {
 			*val0 = *val1 = 0;
 			return;
 		}
 		*val0 = scale0 / pow_10(exp);
 		rem = scale0 % pow_10(exp);
 		res = 0;
-		for (i = 0; i < (6 - exp); ++i) {
-			x = scale1 / pow_10(5 - i);
-			res += (pow_10(5 - exp - i) * x);
-			scale1 = scale1 % pow_10(5 - i);
+		for (i = 0; i < (9 - exp); ++i) {
+			x = scale1 / pow_10(8 - i);
+			res += (pow_10(8 - exp - i) * x);
+			scale1 = scale1 % pow_10(8 - i);
 		}
-		*val1 = rem * pow_10(6 - exp) + res;
+		*val1 = rem * pow_10(9 - exp) + res;
 	} else {
 		*val0 = scale0;
 		*val1 = scale1;
@@ -332,14 +332,14 @@ int hid_sensor_format_scale(u32 usage_id
 			unit_conversion[i].unit == attr_info->units) {
 			exp  = hid_sensor_convert_exponent(
 						attr_info->unit_expo);
-			adjust_exponent_micro(val0, val1,
+			adjust_exponent_nano(val0, val1,
 					unit_conversion[i].scale_val0,
 					unit_conversion[i].scale_val1, exp);
 			break;
 		}
 	}
 
-	return IIO_VAL_INT_PLUS_MICRO;
+	return IIO_VAL_INT_PLUS_NANO;
 }
 EXPORT_SYMBOL(hid_sensor_format_scale);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/iio/common/hid-sensors/hid-sensor-trigger.c linux-libre-4.4.107-gnu/drivers/iio/common/hid-sensors/hid-sensor-trigger.c
--- linux-libre-4.4-gnu/drivers/iio/common/hid-sensors/hid-sensor-trigger.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/iio/common/hid-sensors/hid-sensor-trigger.c	2017-12-20 04:05:01.000000000 -0500
@@ -36,8 +36,6 @@ static int _hid_sensor_power_state(struc
 	s32 poll_value = 0;
 
 	if (state) {
-		if (!atomic_read(&st->user_requested_state))
-			return 0;
 		if (sensor_hub_device_open(st->hsdev))
 			return -EIO;
 
@@ -51,8 +49,6 @@ static int _hid_sensor_power_state(struc
 			st->report_state.report_id,
 			st->report_state.index,
 			HID_USAGE_SENSOR_PROP_REPORTING_STATE_ALL_EVENTS_ENUM);
-
-		poll_value = hid_sensor_read_poll_value(st);
 	} else {
 		int val;
 
@@ -86,10 +82,15 @@ static int _hid_sensor_power_state(struc
 				       &report_val);
 	}
 
+	pr_debug("HID_SENSOR %s set power_state %d report_state %d\n",
+		 st->pdev->name, state_val, report_val);
+
 	sensor_hub_get_feature(st->hsdev, st->power_state.report_id,
 			       st->power_state.index,
 			       sizeof(state_val), &state_val);
-	if (state && poll_value)
+	if (state)
+		poll_value = hid_sensor_read_poll_value(st);
+	if (poll_value > 0)
 		msleep_interruptible(poll_value * 2);
 
 	return 0;
@@ -107,6 +108,7 @@ int hid_sensor_power_state(struct hid_se
 		ret = pm_runtime_get_sync(&st->pdev->dev);
 	else {
 		pm_runtime_mark_last_busy(&st->pdev->dev);
+		pm_runtime_use_autosuspend(&st->pdev->dev);
 		ret = pm_runtime_put_autosuspend(&st->pdev->dev);
 	}
 	if (ret < 0) {
@@ -175,8 +177,6 @@ int hid_sensor_setup_trigger(struct iio_
 	/* Default to 3 seconds, but can be changed from sysfs */
 	pm_runtime_set_autosuspend_delay(&attrb->pdev->dev,
 					 3000);
-	pm_runtime_use_autosuspend(&attrb->pdev->dev);
-
 	return ret;
 error_unreg_trigger:
 	iio_trigger_unregister(trig);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/iio/dac/ad7303.c linux-libre-4.4.107-gnu/drivers/iio/dac/ad7303.c
--- linux-libre-4.4-gnu/drivers/iio/dac/ad7303.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/iio/dac/ad7303.c	2017-12-20 04:05:01.000000000 -0500
@@ -184,9 +184,9 @@ static const struct iio_chan_spec_ext_in
 	.address = (chan),					\
 	.scan_type = {						\
 		.sign = 'u',					\
-		.realbits = '8',				\
-		.storagebits = '8',				\
-		.shift = '0',					\
+		.realbits = 8,					\
+		.storagebits = 8,				\
+		.shift = 0,					\
 	},							\
 	.ext_info = ad7303_ext_info,				\
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/iio/dac/mcp4725.c linux-libre-4.4.107-gnu/drivers/iio/dac/mcp4725.c
--- linux-libre-4.4-gnu/drivers/iio/dac/mcp4725.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/iio/dac/mcp4725.c	2017-12-20 04:05:01.000000000 -0500
@@ -300,6 +300,7 @@ static int mcp4725_probe(struct i2c_clie
 	data->client = client;
 
 	indio_dev->dev.parent = &client->dev;
+	indio_dev->name = id->name;
 	indio_dev->info = &mcp4725_info;
 	indio_dev->channels = &mcp4725_channel;
 	indio_dev->num_channels = 1;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/iio/gyro/bmg160_core.c linux-libre-4.4.107-gnu/drivers/iio/gyro/bmg160_core.c
--- linux-libre-4.4-gnu/drivers/iio/gyro/bmg160_core.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/iio/gyro/bmg160_core.c	2017-12-20 04:05:01.000000000 -0500
@@ -28,6 +28,7 @@
 #include <linux/iio/trigger_consumer.h>
 #include <linux/iio/triggered_buffer.h>
 #include <linux/regmap.h>
+#include <linux/delay.h>
 #include "bmg160.h"
 
 #define BMG160_IRQ_NAME		"bmg160_event"
@@ -53,6 +54,9 @@
 #define BMG160_NO_FILTER		0
 #define BMG160_DEF_BW			100
 
+#define BMG160_GYRO_REG_RESET		0x14
+#define BMG160_GYRO_RESET_VAL		0xb6
+
 #define BMG160_REG_INT_MAP_0		0x17
 #define BMG160_INT_MAP_0_BIT_ANY	BIT(1)
 
@@ -186,6 +190,14 @@ static int bmg160_chip_init(struct bmg16
 	int ret;
 	unsigned int val;
 
+	/*
+	 * Reset chip to get it in a known good state. A delay of 30ms after
+	 * reset is required according to the datasheet.
+	 */
+	regmap_write(data->regmap, BMG160_GYRO_REG_RESET,
+		     BMG160_GYRO_RESET_VAL);
+	usleep_range(30000, 30700);
+
 	ret = regmap_read(data->regmap, BMG160_REG_CHIP_ID, &val);
 	if (ret < 0) {
 		dev_err(data->dev, "Error reading reg_chip_id\n");
@@ -452,7 +464,7 @@ static int bmg160_get_temp(struct bmg160
 static int bmg160_get_axis(struct bmg160_data *data, int axis, int *val)
 {
 	int ret;
-	unsigned int raw_val;
+	__le16 raw_val;
 
 	mutex_lock(&data->mutex);
 	ret = bmg160_set_power_state(data, true);
@@ -462,7 +474,7 @@ static int bmg160_get_axis(struct bmg160
 	}
 
 	ret = regmap_bulk_read(data->regmap, BMG160_AXIS_TO_REG(axis), &raw_val,
-			       2);
+			       sizeof(raw_val));
 	if (ret < 0) {
 		dev_err(data->dev, "Error reading axis %d\n", axis);
 		bmg160_set_power_state(data, false);
@@ -470,7 +482,7 @@ static int bmg160_get_axis(struct bmg160
 		return ret;
 	}
 
-	*val = sign_extend32(raw_val, 15);
+	*val = sign_extend32(le16_to_cpu(raw_val), 15);
 	ret = bmg160_set_power_state(data, false);
 	mutex_unlock(&data->mutex);
 	if (ret < 0)
@@ -733,6 +745,7 @@ static const struct iio_event_spec bmg16
 		.sign = 's',						\
 		.realbits = 16,					\
 		.storagebits = 16,					\
+		.endianness = IIO_LE,					\
 	},								\
 	.event_spec = &bmg160_event,					\
 	.num_event_specs = 1						\
@@ -780,7 +793,7 @@ static irqreturn_t bmg160_trigger_handle
 			mutex_unlock(&data->mutex);
 			goto err;
 		}
-		data->buffer[i++] = ret;
+		data->buffer[i++] = val;
 	}
 	mutex_unlock(&data->mutex);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/iio/humidity/hdc100x.c linux-libre-4.4.107-gnu/drivers/iio/humidity/hdc100x.c
--- linux-libre-4.4-gnu/drivers/iio/humidity/hdc100x.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/iio/humidity/hdc100x.c	2017-12-20 04:05:01.000000000 -0500
@@ -55,7 +55,7 @@ static const struct {
 	},
 	{ /* IIO_HUMIDITYRELATIVE channel */
 		.shift = 8,
-		.mask = 2,
+		.mask = 3,
 	},
 };
 
@@ -164,14 +164,14 @@ static int hdc100x_get_measurement(struc
 		dev_err(&client->dev, "cannot read high byte measurement");
 		return ret;
 	}
-	val = ret << 6;
+	val = ret << 8;
 
 	ret = i2c_smbus_read_byte(client);
 	if (ret < 0) {
 		dev_err(&client->dev, "cannot read low byte measurement");
 		return ret;
 	}
-	val |= ret >> 2;
+	val |= ret;
 
 	return val;
 }
@@ -211,18 +211,18 @@ static int hdc100x_read_raw(struct iio_d
 		return IIO_VAL_INT_PLUS_MICRO;
 	case IIO_CHAN_INFO_SCALE:
 		if (chan->type == IIO_TEMP) {
-			*val = 165;
-			*val2 = 65536 >> 2;
+			*val = 165000;
+			*val2 = 65536;
 			return IIO_VAL_FRACTIONAL;
 		} else {
-			*val = 0;
-			*val2 = 10000;
-			return IIO_VAL_INT_PLUS_MICRO;
+			*val = 100;
+			*val2 = 65536;
+			return IIO_VAL_FRACTIONAL;
 		}
 		break;
 	case IIO_CHAN_INFO_OFFSET:
-		*val = -3971;
-		*val2 = 879096;
+		*val = -15887;
+		*val2 = 515151;
 		return IIO_VAL_INT_PLUS_MICRO;
 	default:
 		return -EINVAL;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/iio/imu/adis16480.c linux-libre-4.4.107-gnu/drivers/iio/imu/adis16480.c
--- linux-libre-4.4-gnu/drivers/iio/imu/adis16480.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/iio/imu/adis16480.c	2017-12-20 04:05:01.000000000 -0500
@@ -696,7 +696,7 @@ static const struct adis16480_chip_info
 		.gyro_max_val = IIO_RAD_TO_DEGREE(22500),
 		.gyro_max_scale = 450,
 		.accel_max_val = IIO_M_S_2_TO_G(12500),
-		.accel_max_scale = 5,
+		.accel_max_scale = 10,
 	},
 	[ADIS16485] = {
 		.channels = adis16485_channels,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/iio/imu/adis_buffer.c linux-libre-4.4.107-gnu/drivers/iio/imu/adis_buffer.c
--- linux-libre-4.4-gnu/drivers/iio/imu/adis_buffer.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/iio/imu/adis_buffer.c	2017-12-20 04:05:01.000000000 -0500
@@ -43,7 +43,7 @@ int adis_update_scan_mode(struct iio_dev
 		return -ENOMEM;
 
 	rx = adis->buffer;
-	tx = rx + indio_dev->scan_bytes;
+	tx = rx + scan_count;
 
 	spi_message_init(&adis->msg);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/iio/industrialio-buffer.c linux-libre-4.4.107-gnu/drivers/iio/industrialio-buffer.c
--- linux-libre-4.4-gnu/drivers/iio/industrialio-buffer.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/iio/industrialio-buffer.c	2017-12-20 04:05:01.000000000 -0500
@@ -107,9 +107,10 @@ ssize_t iio_buffer_read_first_n_outer(st
 {
 	struct iio_dev *indio_dev = filp->private_data;
 	struct iio_buffer *rb = indio_dev->buffer;
+	DEFINE_WAIT_FUNC(wait, woken_wake_function);
 	size_t datum_size;
 	size_t to_wait;
-	int ret;
+	int ret = 0;
 
 	if (!indio_dev->info)
 		return -ENODEV;
@@ -131,19 +132,29 @@ ssize_t iio_buffer_read_first_n_outer(st
 	else
 		to_wait = min_t(size_t, n / datum_size, rb->watermark);
 
+	add_wait_queue(&rb->pollq, &wait);
 	do {
-		ret = wait_event_interruptible(rb->pollq,
-		      iio_buffer_ready(indio_dev, rb, to_wait, n / datum_size));
-		if (ret)
-			return ret;
+		if (!indio_dev->info) {
+			ret = -ENODEV;
+			break;
+		}
 
-		if (!indio_dev->info)
-			return -ENODEV;
+		if (!iio_buffer_ready(indio_dev, rb, to_wait, n / datum_size)) {
+			if (signal_pending(current)) {
+				ret = -ERESTARTSYS;
+				break;
+			}
+
+			wait_woken(&wait, TASK_INTERRUPTIBLE,
+				   MAX_SCHEDULE_TIMEOUT);
+			continue;
+		}
 
 		ret = rb->access->read_first_n(rb, n, buf);
 		if (ret == 0 && (filp->f_flags & O_NONBLOCK))
 			ret = -EAGAIN;
-	 } while (ret == 0);
+	} while (ret == 0);
+	remove_wait_queue(&rb->pollq, &wait);
 
 	return ret;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/iio/industrialio-core.c linux-libre-4.4.107-gnu/drivers/iio/industrialio-core.c
--- linux-libre-4.4-gnu/drivers/iio/industrialio-core.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/iio/industrialio-core.c	2017-12-20 04:05:01.000000000 -0500
@@ -221,8 +221,10 @@ static ssize_t iio_debugfs_read_reg(stru
 	ret = indio_dev->info->debugfs_reg_access(indio_dev,
 						  indio_dev->cached_reg_addr,
 						  0, &val);
-	if (ret)
+	if (ret) {
 		dev_err(indio_dev->dev.parent, "%s: read failed\n", __func__);
+		return ret;
+	}
 
 	len = snprintf(buf, sizeof(buf), "0x%X\n", val);
 
@@ -433,23 +435,21 @@ ssize_t iio_format_value(char *buf, unsi
 		scale_db = true;
 	case IIO_VAL_INT_PLUS_MICRO:
 		if (vals[1] < 0)
-			return sprintf(buf, "-%ld.%06u%s\n", abs(vals[0]),
-					-vals[1],
-				scale_db ? " dB" : "");
+			return sprintf(buf, "-%d.%06u%s\n", abs(vals[0]),
+				       -vals[1], scale_db ? " dB" : "");
 		else
 			return sprintf(buf, "%d.%06u%s\n", vals[0], vals[1],
 				scale_db ? " dB" : "");
 	case IIO_VAL_INT_PLUS_NANO:
 		if (vals[1] < 0)
-			return sprintf(buf, "-%ld.%09u\n", abs(vals[0]),
-					-vals[1]);
+			return sprintf(buf, "-%d.%09u\n", abs(vals[0]),
+				       -vals[1]);
 		else
 			return sprintf(buf, "%d.%09u\n", vals[0], vals[1]);
 	case IIO_VAL_FRACTIONAL:
 		tmp = div_s64((s64)vals[0] * 1000000000LL, vals[1]);
-		vals[1] = do_div(tmp, 1000000000LL);
-		vals[0] = tmp;
-		return sprintf(buf, "%d.%09u\n", vals[0], vals[1]);
+		vals[0] = (int)div_s64_rem(tmp, 1000000000, &vals[1]);
+		return sprintf(buf, "%d.%09u\n", vals[0], abs(vals[1]));
 	case IIO_VAL_FRACTIONAL_LOG2:
 		tmp = (s64)vals[0] * 1000000000LL >> vals[1];
 		vals[1] = do_div(tmp, 1000000000LL);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/iio/industrialio-trigger.c linux-libre-4.4.107-gnu/drivers/iio/industrialio-trigger.c
--- linux-libre-4.4-gnu/drivers/iio/industrialio-trigger.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/iio/industrialio-trigger.c	2017-12-20 04:05:01.000000000 -0500
@@ -210,22 +210,35 @@ static int iio_trigger_attach_poll_func(
 
 	/* Prevent the module from being removed whilst attached to a trigger */
 	__module_get(pf->indio_dev->info->driver_module);
+
+	/* Get irq number */
 	pf->irq = iio_trigger_get_irq(trig);
+	if (pf->irq < 0)
+		goto out_put_module;
+
+	/* Request irq */
 	ret = request_threaded_irq(pf->irq, pf->h, pf->thread,
 				   pf->type, pf->name,
 				   pf);
-	if (ret < 0) {
-		module_put(pf->indio_dev->info->driver_module);
-		return ret;
-	}
+	if (ret < 0)
+		goto out_put_irq;
 
+	/* Enable trigger in driver */
 	if (trig->ops && trig->ops->set_trigger_state && notinuse) {
 		ret = trig->ops->set_trigger_state(trig, true);
 		if (ret < 0)
-			module_put(pf->indio_dev->info->driver_module);
+			goto out_free_irq;
 	}
 
 	return ret;
+
+out_free_irq:
+	free_irq(pf->irq, pf);
+out_put_irq:
+	iio_trigger_put_irq(trig, pf->irq);
+out_put_module:
+	module_put(pf->indio_dev->info->driver_module);
+	return ret;
 }
 
 static int iio_trigger_detach_poll_func(struct iio_trigger *trig,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/iio/inkern.c linux-libre-4.4.107-gnu/drivers/iio/inkern.c
--- linux-libre-4.4-gnu/drivers/iio/inkern.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/iio/inkern.c	2017-12-20 04:05:01.000000000 -0500
@@ -351,6 +351,8 @@ EXPORT_SYMBOL_GPL(iio_channel_get);
 
 void iio_channel_release(struct iio_channel *channel)
 {
+	if (!channel)
+		return;
 	iio_device_put(channel->indio_dev);
 	kfree(channel);
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/iio/light/acpi-als.c linux-libre-4.4.107-gnu/drivers/iio/light/acpi-als.c
--- linux-libre-4.4-gnu/drivers/iio/light/acpi-als.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/iio/light/acpi-als.c	2017-12-20 04:05:01.000000000 -0500
@@ -54,7 +54,9 @@ static const struct iio_chan_spec acpi_a
 			.realbits	= 32,
 			.storagebits	= 32,
 		},
-		.info_mask_separate	= BIT(IIO_CHAN_INFO_RAW),
+		/* _RAW is here for backward ABI compatibility */
+		.info_mask_separate	= BIT(IIO_CHAN_INFO_RAW) |
+					  BIT(IIO_CHAN_INFO_PROCESSED),
 	},
 };
 
@@ -152,7 +154,7 @@ static int acpi_als_read_raw(struct iio_
 	s32 temp_val;
 	int ret;
 
-	if (mask != IIO_CHAN_INFO_RAW)
+	if ((mask != IIO_CHAN_INFO_PROCESSED) && (mask != IIO_CHAN_INFO_RAW))
 		return -EINVAL;
 
 	/* we support only illumination (_ALI) so far. */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/iio/light/apds9960.c linux-libre-4.4.107-gnu/drivers/iio/light/apds9960.c
--- linux-libre-4.4-gnu/drivers/iio/light/apds9960.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/iio/light/apds9960.c	2017-12-20 04:05:01.000000000 -0500
@@ -1005,6 +1005,7 @@ static int apds9960_probe(struct i2c_cli
 
 	iio_device_attach_buffer(indio_dev, buffer);
 
+	indio_dev->dev.parent = &client->dev;
 	indio_dev->info = &apds9960_info;
 	indio_dev->name = APDS9960_DRV_NAME;
 	indio_dev->channels = apds9960_channels;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/iio/light/cm3232.c linux-libre-4.4.107-gnu/drivers/iio/light/cm3232.c
--- linux-libre-4.4-gnu/drivers/iio/light/cm3232.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/iio/light/cm3232.c	2017-12-20 04:05:01.000000000 -0500
@@ -119,7 +119,7 @@ static int cm3232_reg_init(struct cm3232
 	if (ret < 0)
 		dev_err(&chip->client->dev, "Error writing reg_cmd\n");
 
-	return 0;
+	return ret;
 }
 
 /**
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/iio/light/ltr501.c linux-libre-4.4.107-gnu/drivers/iio/light/ltr501.c
--- linux-libre-4.4-gnu/drivers/iio/light/ltr501.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/iio/light/ltr501.c	2017-12-20 04:05:01.000000000 -0500
@@ -74,9 +74,9 @@ static const int int_time_mapping[] = {1
 static const struct reg_field reg_field_it =
 				REG_FIELD(LTR501_ALS_MEAS_RATE, 3, 4);
 static const struct reg_field reg_field_als_intr =
-				REG_FIELD(LTR501_INTR, 0, 0);
-static const struct reg_field reg_field_ps_intr =
 				REG_FIELD(LTR501_INTR, 1, 1);
+static const struct reg_field reg_field_ps_intr =
+				REG_FIELD(LTR501_INTR, 0, 0);
 static const struct reg_field reg_field_als_rate =
 				REG_FIELD(LTR501_ALS_MEAS_RATE, 0, 2);
 static const struct reg_field reg_field_ps_rate =
@@ -180,7 +180,7 @@ static const struct ltr501_samp_table lt
 			{500000, 2000000}
 };
 
-static unsigned int ltr501_match_samp_freq(const struct ltr501_samp_table *tab,
+static int ltr501_match_samp_freq(const struct ltr501_samp_table *tab,
 					   int len, int val, int val2)
 {
 	int i, freq;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/iio/light/tsl2563.c linux-libre-4.4.107-gnu/drivers/iio/light/tsl2563.c
--- linux-libre-4.4-gnu/drivers/iio/light/tsl2563.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/iio/light/tsl2563.c	2017-12-20 04:05:01.000000000 -0500
@@ -626,7 +626,7 @@ static irqreturn_t tsl2563_event_handler
 	struct tsl2563_chip *chip = iio_priv(dev_info);
 
 	iio_push_event(dev_info,
-		       IIO_UNMOD_EVENT_CODE(IIO_LIGHT,
+		       IIO_UNMOD_EVENT_CODE(IIO_INTENSITY,
 					    0,
 					    IIO_EV_TYPE_THRESH,
 					    IIO_EV_DIR_EITHER),
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/iio/magnetometer/ak8975.c linux-libre-4.4.107-gnu/drivers/iio/magnetometer/ak8975.c
--- linux-libre-4.4-gnu/drivers/iio/magnetometer/ak8975.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/iio/magnetometer/ak8975.c	2017-12-20 04:05:01.000000000 -0500
@@ -462,6 +462,8 @@ static int ak8975_setup_irq(struct ak897
 	int rc;
 	int irq;
 
+	init_waitqueue_head(&data->data_ready_queue);
+	clear_bit(0, &data->flags);
 	if (client->irq)
 		irq = client->irq;
 	else
@@ -477,8 +479,6 @@ static int ak8975_setup_irq(struct ak897
 		return rc;
 	}
 
-	init_waitqueue_head(&data->data_ready_queue);
-	clear_bit(0, &data->flags);
 	data->eoc_irq = irq;
 
 	return rc;
@@ -732,7 +732,7 @@ static int ak8975_probe(struct i2c_clien
 	int eoc_gpio;
 	int err;
 	const char *name = NULL;
-	enum asahi_compass_chipset chipset;
+	enum asahi_compass_chipset chipset = AK_MAX_TYPE;
 
 	/* Grab and set up the supplied GPIO. */
 	if (client->dev.platform_data)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/iio/magnetometer/st_magn.h linux-libre-4.4.107-gnu/drivers/iio/magnetometer/st_magn.h
--- linux-libre-4.4-gnu/drivers/iio/magnetometer/st_magn.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/iio/magnetometer/st_magn.h	2017-12-20 04:05:01.000000000 -0500
@@ -44,6 +44,7 @@ static inline int st_magn_allocate_ring(
 static inline void st_magn_deallocate_ring(struct iio_dev *indio_dev)
 {
 }
+#define ST_MAGN_TRIGGER_SET_STATE NULL
 #endif /* CONFIG_IIO_BUFFER */
 
 #endif /* ST_MAGN_H */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/iio/orientation/hid-sensor-rotation.c linux-libre-4.4.107-gnu/drivers/iio/orientation/hid-sensor-rotation.c
--- linux-libre-4.4-gnu/drivers/iio/orientation/hid-sensor-rotation.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/iio/orientation/hid-sensor-rotation.c	2017-12-20 04:05:01.000000000 -0500
@@ -335,6 +335,7 @@ static struct platform_driver hid_dev_ro
 	.id_table = hid_dev_rot_ids,
 	.driver = {
 		.name	= KBUILD_MODNAME,
+		.pm     = &hid_sensor_pm_ops,
 	},
 	.probe		= hid_dev_rot_probe,
 	.remove		= hid_dev_rot_remove,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/iio/pressure/mpl115.c linux-libre-4.4.107-gnu/drivers/iio/pressure/mpl115.c
--- linux-libre-4.4-gnu/drivers/iio/pressure/mpl115.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/iio/pressure/mpl115.c	2017-12-20 04:05:01.000000000 -0500
@@ -117,7 +117,7 @@ static int mpl115_read_raw(struct iio_de
 		*val = ret >> 6;
 		return IIO_VAL_INT;
 	case IIO_CHAN_INFO_OFFSET:
-		*val = 605;
+		*val = -605;
 		*val2 = 750000;
 		return IIO_VAL_INT_PLUS_MICRO;
 	case IIO_CHAN_INFO_SCALE:
@@ -136,6 +136,7 @@ static const struct iio_chan_spec mpl115
 	{
 		.type = IIO_TEMP,
 		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
+		.info_mask_shared_by_type =
 			BIT(IIO_CHAN_INFO_OFFSET) | BIT(IIO_CHAN_INFO_SCALE),
 	},
 };
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/iio/pressure/mpl3115.c linux-libre-4.4.107-gnu/drivers/iio/pressure/mpl3115.c
--- linux-libre-4.4-gnu/drivers/iio/pressure/mpl3115.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/iio/pressure/mpl3115.c	2017-12-20 04:05:01.000000000 -0500
@@ -182,7 +182,7 @@ static const struct iio_chan_spec mpl311
 	{
 		.type = IIO_PRESSURE,
 		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
-			BIT(IIO_CHAN_INFO_SCALE),
+		.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE),
 		.scan_index = 0,
 		.scan_type = {
 			.sign = 'u',
@@ -195,7 +195,7 @@ static const struct iio_chan_spec mpl311
 	{
 		.type = IIO_TEMP,
 		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
-			BIT(IIO_CHAN_INFO_SCALE),
+		.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE),
 		.scan_index = 1,
 		.scan_type = {
 			.sign = 's',
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/iio/pressure/st_pressure_core.c linux-libre-4.4.107-gnu/drivers/iio/pressure/st_pressure_core.c
--- linux-libre-4.4-gnu/drivers/iio/pressure/st_pressure_core.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/iio/pressure/st_pressure_core.c	2017-12-20 04:05:01.000000000 -0500
@@ -28,15 +28,21 @@
 #include <linux/iio/common/st_sensors.h>
 #include "st_pressure.h"
 
+#define MCELSIUS_PER_CELSIUS			1000
+
+/* Default pressure sensitivity */
 #define ST_PRESS_LSB_PER_MBAR			4096UL
 #define ST_PRESS_KPASCAL_NANO_SCALE		(100000000UL / \
 						 ST_PRESS_LSB_PER_MBAR)
+
+/* Default temperature sensitivity */
 #define ST_PRESS_LSB_PER_CELSIUS		480UL
-#define ST_PRESS_CELSIUS_NANO_SCALE		(1000000000UL / \
-						 ST_PRESS_LSB_PER_CELSIUS)
+#define ST_PRESS_MILLI_CELSIUS_OFFSET		42500UL
+
 #define ST_PRESS_NUMBER_DATA_CHANNELS		1
 
 /* FULLSCALE */
+#define ST_PRESS_FS_AVL_1100MB			1100
 #define ST_PRESS_FS_AVL_1260MB			1260
 
 #define ST_PRESS_1_OUT_XL_ADDR			0x28
@@ -54,18 +60,20 @@
 #define ST_PRESS_LPS331AP_PW_MASK		0x80
 #define ST_PRESS_LPS331AP_FS_ADDR		0x23
 #define ST_PRESS_LPS331AP_FS_MASK		0x30
-#define ST_PRESS_LPS331AP_FS_AVL_1260_VAL	0x00
-#define ST_PRESS_LPS331AP_FS_AVL_1260_GAIN	ST_PRESS_KPASCAL_NANO_SCALE
-#define ST_PRESS_LPS331AP_FS_AVL_TEMP_GAIN	ST_PRESS_CELSIUS_NANO_SCALE
 #define ST_PRESS_LPS331AP_BDU_ADDR		0x20
 #define ST_PRESS_LPS331AP_BDU_MASK		0x04
 #define ST_PRESS_LPS331AP_DRDY_IRQ_ADDR		0x22
 #define ST_PRESS_LPS331AP_DRDY_IRQ_INT1_MASK	0x04
 #define ST_PRESS_LPS331AP_DRDY_IRQ_INT2_MASK	0x20
 #define ST_PRESS_LPS331AP_MULTIREAD_BIT		true
-#define ST_PRESS_LPS331AP_TEMP_OFFSET		42500
 
 /* CUSTOM VALUES FOR LPS001WP SENSOR */
+
+/* LPS001WP pressure resolution */
+#define ST_PRESS_LPS001WP_LSB_PER_MBAR		16UL
+/* LPS001WP temperature resolution */
+#define ST_PRESS_LPS001WP_LSB_PER_CELSIUS	64UL
+
 #define ST_PRESS_LPS001WP_WAI_EXP		0xba
 #define ST_PRESS_LPS001WP_ODR_ADDR		0x20
 #define ST_PRESS_LPS001WP_ODR_MASK		0x30
@@ -74,6 +82,8 @@
 #define ST_PRESS_LPS001WP_ODR_AVL_13HZ_VAL	0x03
 #define ST_PRESS_LPS001WP_PW_ADDR		0x20
 #define ST_PRESS_LPS001WP_PW_MASK		0x40
+#define ST_PRESS_LPS001WP_FS_AVL_PRESS_GAIN \
+	(100000000UL / ST_PRESS_LPS001WP_LSB_PER_MBAR)
 #define ST_PRESS_LPS001WP_BDU_ADDR		0x20
 #define ST_PRESS_LPS001WP_BDU_MASK		0x04
 #define ST_PRESS_LPS001WP_MULTIREAD_BIT		true
@@ -90,18 +100,12 @@
 #define ST_PRESS_LPS25H_ODR_AVL_25HZ_VAL	0x04
 #define ST_PRESS_LPS25H_PW_ADDR			0x20
 #define ST_PRESS_LPS25H_PW_MASK			0x80
-#define ST_PRESS_LPS25H_FS_ADDR			0x00
-#define ST_PRESS_LPS25H_FS_MASK			0x00
-#define ST_PRESS_LPS25H_FS_AVL_1260_VAL		0x00
-#define ST_PRESS_LPS25H_FS_AVL_1260_GAIN	ST_PRESS_KPASCAL_NANO_SCALE
-#define ST_PRESS_LPS25H_FS_AVL_TEMP_GAIN	ST_PRESS_CELSIUS_NANO_SCALE
 #define ST_PRESS_LPS25H_BDU_ADDR		0x20
 #define ST_PRESS_LPS25H_BDU_MASK		0x04
 #define ST_PRESS_LPS25H_DRDY_IRQ_ADDR		0x23
 #define ST_PRESS_LPS25H_DRDY_IRQ_INT1_MASK	0x01
 #define ST_PRESS_LPS25H_DRDY_IRQ_INT2_MASK	0x10
 #define ST_PRESS_LPS25H_MULTIREAD_BIT		true
-#define ST_PRESS_LPS25H_TEMP_OFFSET		42500
 #define ST_PRESS_LPS25H_OUT_XL_ADDR		0x28
 #define ST_TEMP_LPS25H_OUT_L_ADDR		0x2b
 
@@ -153,7 +157,9 @@ static const struct iio_chan_spec st_pre
 			.storagebits = 16,
 			.endianness = IIO_LE,
 		},
-		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
+		.info_mask_separate =
+			BIT(IIO_CHAN_INFO_RAW) |
+			BIT(IIO_CHAN_INFO_SCALE),
 		.modified = 0,
 	},
 	{
@@ -169,7 +175,7 @@ static const struct iio_chan_spec st_pre
 		},
 		.info_mask_separate =
 			BIT(IIO_CHAN_INFO_RAW) |
-			BIT(IIO_CHAN_INFO_OFFSET),
+			BIT(IIO_CHAN_INFO_SCALE),
 		.modified = 0,
 	},
 	IIO_CHAN_SOFT_TIMESTAMP(1)
@@ -204,11 +210,14 @@ static const struct st_sensor_settings s
 			.addr = ST_PRESS_LPS331AP_FS_ADDR,
 			.mask = ST_PRESS_LPS331AP_FS_MASK,
 			.fs_avl = {
+				/*
+				 * Pressure and temperature sensitivity values
+				 * as defined in table 3 of LPS331AP datasheet.
+				 */
 				[0] = {
 					.num = ST_PRESS_FS_AVL_1260MB,
-					.value = ST_PRESS_LPS331AP_FS_AVL_1260_VAL,
-					.gain = ST_PRESS_LPS331AP_FS_AVL_1260_GAIN,
-					.gain2 = ST_PRESS_LPS331AP_FS_AVL_TEMP_GAIN,
+					.gain = ST_PRESS_KPASCAL_NANO_SCALE,
+					.gain2 = ST_PRESS_LSB_PER_CELSIUS,
 				},
 			},
 		},
@@ -248,7 +257,17 @@ static const struct st_sensor_settings s
 			.value_off = ST_SENSORS_DEFAULT_POWER_OFF_VALUE,
 		},
 		.fs = {
-			.addr = 0,
+			.fs_avl = {
+				/*
+				 * Pressure and temperature resolution values
+				 * as defined in table 3 of LPS001WP datasheet.
+				 */
+				[0] = {
+					.num = ST_PRESS_FS_AVL_1100MB,
+					.gain = ST_PRESS_LPS001WP_FS_AVL_PRESS_GAIN,
+					.gain2 = ST_PRESS_LPS001WP_LSB_PER_CELSIUS,
+				},
+			},
 		},
 		.bdu = {
 			.addr = ST_PRESS_LPS001WP_BDU_ADDR,
@@ -285,14 +304,15 @@ static const struct st_sensor_settings s
 			.value_off = ST_SENSORS_DEFAULT_POWER_OFF_VALUE,
 		},
 		.fs = {
-			.addr = ST_PRESS_LPS25H_FS_ADDR,
-			.mask = ST_PRESS_LPS25H_FS_MASK,
 			.fs_avl = {
+				/*
+				 * Pressure and temperature sensitivity values
+				 * as defined in table 3 of LPS25H datasheet.
+				 */
 				[0] = {
 					.num = ST_PRESS_FS_AVL_1260MB,
-					.value = ST_PRESS_LPS25H_FS_AVL_1260_VAL,
-					.gain = ST_PRESS_LPS25H_FS_AVL_1260_GAIN,
-					.gain2 = ST_PRESS_LPS25H_FS_AVL_TEMP_GAIN,
+					.gain = ST_PRESS_KPASCAL_NANO_SCALE,
+					.gain2 = ST_PRESS_LSB_PER_CELSIUS,
 				},
 			},
 		},
@@ -346,26 +366,26 @@ static int st_press_read_raw(struct iio_
 
 		return IIO_VAL_INT;
 	case IIO_CHAN_INFO_SCALE:
-		*val = 0;
-
 		switch (ch->type) {
 		case IIO_PRESSURE:
+			*val = 0;
 			*val2 = press_data->current_fullscale->gain;
-			break;
+			return IIO_VAL_INT_PLUS_NANO;
 		case IIO_TEMP:
+			*val = MCELSIUS_PER_CELSIUS;
 			*val2 = press_data->current_fullscale->gain2;
-			break;
+			return IIO_VAL_FRACTIONAL;
 		default:
 			err = -EINVAL;
 			goto read_error;
 		}
 
-		return IIO_VAL_INT_PLUS_NANO;
 	case IIO_CHAN_INFO_OFFSET:
 		switch (ch->type) {
 		case IIO_TEMP:
-			*val = 425;
-			*val2 = 10;
+			*val = ST_PRESS_MILLI_CELSIUS_OFFSET *
+			       press_data->current_fullscale->gain2;
+			*val2 = MCELSIUS_PER_CELSIUS;
 			break;
 		default:
 			err = -EINVAL;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/iio/proximity/as3935.c linux-libre-4.4.107-gnu/drivers/iio/proximity/as3935.c
--- linux-libre-4.4-gnu/drivers/iio/proximity/as3935.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/iio/proximity/as3935.c	2017-12-20 04:05:01.000000000 -0500
@@ -40,9 +40,9 @@
 #define AS3935_AFE_PWR_BIT	BIT(0)
 
 #define AS3935_INT		0x03
-#define AS3935_INT_MASK		0x07
+#define AS3935_INT_MASK		0x0f
 #define AS3935_EVENT_INT	BIT(3)
-#define AS3935_NOISE_INT	BIT(1)
+#define AS3935_NOISE_INT	BIT(0)
 
 #define AS3935_DATA		0x07
 #define AS3935_DATA_MASK	0x3F
@@ -50,7 +50,6 @@
 #define AS3935_TUNE_CAP		0x08
 #define AS3935_CALIBRATE	0x3D
 
-#define AS3935_WRITE_DATA	BIT(15)
 #define AS3935_READ_DATA	BIT(14)
 #define AS3935_ADDRESS(x)	((x) << 8)
 
@@ -64,6 +63,7 @@ struct as3935_state {
 	struct delayed_work work;
 
 	u32 tune_cap;
+	u8 buffer[16]; /* 8-bit data + 56-bit padding + 64-bit timestamp */
 	u8 buf[2] ____cacheline_aligned;
 };
 
@@ -72,7 +72,8 @@ static const struct iio_chan_spec as3935
 		.type           = IIO_PROXIMITY,
 		.info_mask_separate =
 			BIT(IIO_CHAN_INFO_RAW) |
-			BIT(IIO_CHAN_INFO_PROCESSED),
+			BIT(IIO_CHAN_INFO_PROCESSED) |
+			BIT(IIO_CHAN_INFO_SCALE),
 		.scan_index     = 0,
 		.scan_type = {
 			.sign           = 'u',
@@ -103,7 +104,7 @@ static int as3935_write(struct as3935_st
 {
 	u8 *buf = st->buf;
 
-	buf[0] = (AS3935_WRITE_DATA | AS3935_ADDRESS(reg)) >> 8;
+	buf[0] = AS3935_ADDRESS(reg) >> 8;
 	buf[1] = val;
 
 	return spi_write(st->spi, buf, 2);
@@ -181,7 +182,12 @@ static int as3935_read_raw(struct iio_de
 		/* storm out of range */
 		if (*val == AS3935_DATA_MASK)
 			return -EINVAL;
-		*val *= 1000;
+
+		if (m == IIO_CHAN_INFO_PROCESSED)
+			*val *= 1000;
+		break;
+	case IIO_CHAN_INFO_SCALE:
+		*val = 1000;
 		break;
 	default:
 		return -EINVAL;
@@ -206,10 +212,10 @@ static irqreturn_t as3935_trigger_handle
 	ret = as3935_read(st, AS3935_DATA, &val);
 	if (ret)
 		goto err_read;
-	val &= AS3935_DATA_MASK;
-	val *= 1000;
 
-	iio_push_to_buffers_with_timestamp(indio_dev, &val, pf->timestamp);
+	st->buffer[0] = val & AS3935_DATA_MASK;
+	iio_push_to_buffers_with_timestamp(indio_dev, &st->buffer,
+					   pf->timestamp);
 err_read:
 	iio_trigger_notify_done(indio_dev->trig);
 
@@ -257,8 +263,6 @@ static irqreturn_t as3935_interrupt_hand
 
 static void calibrate_as3935(struct as3935_state *st)
 {
-	mutex_lock(&st->lock);
-
 	/* mask disturber interrupt bit */
 	as3935_write(st, AS3935_INT, BIT(5));
 
@@ -268,8 +272,6 @@ static void calibrate_as3935(struct as39
 
 	mdelay(2);
 	as3935_write(st, AS3935_TUNE_CAP, (st->tune_cap / TUNE_CAP_DIV));
-
-	mutex_unlock(&st->lock);
 }
 
 #ifdef CONFIG_PM_SLEEP
@@ -306,6 +308,8 @@ static int as3935_resume(struct device *
 	val &= ~AS3935_AFE_PWR_BIT;
 	ret = as3935_write(st, AS3935_AFE_GAIN, val);
 
+	calibrate_as3935(st);
+
 err_resume:
 	mutex_unlock(&st->lock);
 
@@ -385,7 +389,7 @@ static int as3935_probe(struct spi_devic
 		return ret;
 	}
 
-	ret = iio_triggered_buffer_setup(indio_dev, NULL,
+	ret = iio_triggered_buffer_setup(indio_dev, iio_pollfunc_store_time,
 		&as3935_trigger_handler, NULL);
 
 	if (ret) {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/iio/trigger/iio-trig-interrupt.c linux-libre-4.4.107-gnu/drivers/iio/trigger/iio-trig-interrupt.c
--- linux-libre-4.4-gnu/drivers/iio/trigger/iio-trig-interrupt.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/iio/trigger/iio-trig-interrupt.c	2017-12-20 04:05:01.000000000 -0500
@@ -58,7 +58,7 @@ static int iio_interrupt_trigger_probe(s
 	trig_info = kzalloc(sizeof(*trig_info), GFP_KERNEL);
 	if (!trig_info) {
 		ret = -ENOMEM;
-		goto error_put_trigger;
+		goto error_free_trigger;
 	}
 	iio_trigger_set_drvdata(trig, trig_info);
 	trig_info->irq = irq;
@@ -83,8 +83,8 @@ error_release_irq:
 	free_irq(irq, trig);
 error_free_trig_info:
 	kfree(trig_info);
-error_put_trigger:
-	iio_trigger_put(trig);
+error_free_trigger:
+	iio_trigger_free(trig);
 error_ret:
 	return ret;
 }
@@ -99,7 +99,7 @@ static int iio_interrupt_trigger_remove(
 	iio_trigger_unregister(trig);
 	free_irq(trig_info->irq, trig);
 	kfree(trig_info);
-	iio_trigger_put(trig);
+	iio_trigger_free(trig);
 
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/iio/trigger/iio-trig-sysfs.c linux-libre-4.4.107-gnu/drivers/iio/trigger/iio-trig-sysfs.c
--- linux-libre-4.4-gnu/drivers/iio/trigger/iio-trig-sysfs.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/iio/trigger/iio-trig-sysfs.c	2017-12-20 04:05:01.000000000 -0500
@@ -174,7 +174,7 @@ static int iio_sysfs_trigger_probe(int i
 	return 0;
 
 out2:
-	iio_trigger_put(t->trig);
+	iio_trigger_free(t->trig);
 free_t:
 	kfree(t);
 out1:
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/infiniband/core/addr.c linux-libre-4.4.107-gnu/drivers/infiniband/core/addr.c
--- linux-libre-4.4-gnu/drivers/infiniband/core/addr.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/infiniband/core/addr.c	2017-12-20 04:05:01.000000000 -0500
@@ -277,8 +277,8 @@ static int addr6_resolve(struct sockaddr
 	fl6.saddr = src_in->sin6_addr;
 	fl6.flowi6_oif = addr->bound_dev_if;
 
-	dst = ip6_route_output(addr->net, NULL, &fl6);
-	if ((ret = dst->error))
+	ret = ipv6_stub->ipv6_dst_lookup(addr->net, NULL, &dst, &fl6);
+	if (ret < 0)
 		goto put;
 
 	if (ipv6_addr_any(&fl6.saddr)) {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/infiniband/core/cma.c linux-libre-4.4.107-gnu/drivers/infiniband/core/cma.c
--- linux-libre-4.4-gnu/drivers/infiniband/core/cma.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/infiniband/core/cma.c	2017-12-20 04:05:01.000000000 -0500
@@ -453,7 +453,7 @@ static inline int cma_validate_port(stru
 	if ((dev_type != ARPHRD_INFINIBAND) && rdma_protocol_ib(device, port))
 		return ret;
 
-	if (dev_type == ARPHRD_ETHER)
+	if (dev_type == ARPHRD_ETHER && rdma_protocol_roce(device, port))
 		ndev = dev_get_by_index(&init_net, bound_if_index);
 
 	ret = ib_find_cached_gid_by_port(device, gid, port, ndev, NULL);
@@ -857,6 +857,8 @@ int rdma_init_qp_attr(struct rdma_cm_id
 		} else
 			ret = iw_cm_init_qp_attr(id_priv->cm_id.iw, qp_attr,
 						 qp_attr_mask);
+		qp_attr->port_num = id_priv->id.port_num;
+		*qp_attr_mask |= IB_QP_PORT;
 	} else
 		ret = -ENOSYS;
 
@@ -1351,7 +1353,7 @@ static struct rdma_id_private *cma_id_fr
 	return id_priv;
 }
 
-static inline int cma_user_data_offset(struct rdma_id_private *id_priv)
+static inline u8 cma_user_data_offset(struct rdma_id_private *id_priv)
 {
 	return cma_family(id_priv) == AF_IB ? 0 : sizeof(struct cma_hdr);
 }
@@ -1729,7 +1731,8 @@ static int cma_req_handler(struct ib_cm_
 	struct rdma_id_private *listen_id, *conn_id;
 	struct rdma_cm_event event;
 	struct net_device *net_dev;
-	int offset, ret;
+	u8 offset;
+	int ret;
 
 	listen_id = cma_id_from_event(cm_id, ib_event, &net_dev);
 	if (IS_ERR(listen_id))
@@ -2578,7 +2581,8 @@ static int cma_bind_addr(struct rdma_cm_
 	if (!src_addr || !src_addr->sa_family) {
 		src_addr = (struct sockaddr *) &id->route.addr.src_addr;
 		src_addr->sa_family = dst_addr->sa_family;
-		if (dst_addr->sa_family == AF_INET6) {
+		if (IS_ENABLED(CONFIG_IPV6) &&
+		    dst_addr->sa_family == AF_INET6) {
 			struct sockaddr_in6 *src_addr6 = (struct sockaddr_in6 *) src_addr;
 			struct sockaddr_in6 *dst_addr6 = (struct sockaddr_in6 *) dst_addr;
 			src_addr6->sin6_scope_id = dst_addr6->sin6_scope_id;
@@ -3115,7 +3119,8 @@ static int cma_resolve_ib_udp(struct rdm
 	struct ib_cm_sidr_req_param req;
 	struct ib_cm_id	*id;
 	void *private_data;
-	int offset, ret;
+	u8 offset;
+	int ret;
 
 	memset(&req, 0, sizeof req);
 	offset = cma_user_data_offset(id_priv);
@@ -3172,7 +3177,8 @@ static int cma_connect_ib(struct rdma_id
 	struct rdma_route *route;
 	void *private_data;
 	struct ib_cm_id	*id;
-	int offset, ret;
+	u8 offset;
+	int ret;
 
 	memset(&req, 0, sizeof req);
 	offset = cma_user_data_offset(id_priv);
@@ -3348,6 +3354,9 @@ static int cma_accept_iw(struct rdma_id_
 	struct iw_cm_conn_param iw_param;
 	int ret;
 
+	if (!conn_param)
+		return -EINVAL;
+
 	ret = cma_modify_qp_rtr(id_priv, conn_param);
 	if (ret)
 		return ret;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/infiniband/core/cm.c linux-libre-4.4.107-gnu/drivers/infiniband/core/cm.c
--- linux-libre-4.4-gnu/drivers/infiniband/core/cm.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/infiniband/core/cm.c	2017-12-20 04:05:01.000000000 -0500
@@ -80,6 +80,8 @@ static struct ib_cm {
 	__be32 random_id_operand;
 	struct list_head timewait_list;
 	struct workqueue_struct *wq;
+	/* Sync on cm change port state */
+	spinlock_t state_lock;
 } cm;
 
 /* Counter indexes ordered by attribute ID */
@@ -161,6 +163,8 @@ struct cm_port {
 	struct ib_mad_agent *mad_agent;
 	struct kobject port_obj;
 	u8 port_num;
+	struct list_head cm_priv_prim_list;
+	struct list_head cm_priv_altr_list;
 	struct cm_counter_group counter_group[CM_COUNTER_GROUPS];
 };
 
@@ -241,6 +245,12 @@ struct cm_id_private {
 	u8 service_timeout;
 	u8 target_ack_delay;
 
+	struct list_head prim_list;
+	struct list_head altr_list;
+	/* Indicates that the send port mad is registered and av is set */
+	int prim_send_port_not_ready;
+	int altr_send_port_not_ready;
+
 	struct list_head work_list;
 	atomic_t work_count;
 };
@@ -259,20 +269,47 @@ static int cm_alloc_msg(struct cm_id_pri
 	struct ib_mad_agent *mad_agent;
 	struct ib_mad_send_buf *m;
 	struct ib_ah *ah;
+	struct cm_av *av;
+	unsigned long flags, flags2;
+	int ret = 0;
 
+	/* don't let the port to be released till the agent is down */
+	spin_lock_irqsave(&cm.state_lock, flags2);
+	spin_lock_irqsave(&cm.lock, flags);
+	if (!cm_id_priv->prim_send_port_not_ready)
+		av = &cm_id_priv->av;
+	else if (!cm_id_priv->altr_send_port_not_ready &&
+		 (cm_id_priv->alt_av.port))
+		av = &cm_id_priv->alt_av;
+	else {
+		pr_info("%s: not valid CM id\n", __func__);
+		ret = -ENODEV;
+		spin_unlock_irqrestore(&cm.lock, flags);
+		goto out;
+	}
+	spin_unlock_irqrestore(&cm.lock, flags);
+	/* Make sure the port haven't released the mad yet */
 	mad_agent = cm_id_priv->av.port->mad_agent;
-	ah = ib_create_ah(mad_agent->qp->pd, &cm_id_priv->av.ah_attr);
-	if (IS_ERR(ah))
-		return PTR_ERR(ah);
+	if (!mad_agent) {
+		pr_info("%s: not a valid MAD agent\n", __func__);
+		ret = -ENODEV;
+		goto out;
+	}
+	ah = ib_create_ah(mad_agent->qp->pd, &av->ah_attr);
+	if (IS_ERR(ah)) {
+		ret = PTR_ERR(ah);
+		goto out;
+	}
 
 	m = ib_create_send_mad(mad_agent, cm_id_priv->id.remote_cm_qpn,
-			       cm_id_priv->av.pkey_index,
+			       av->pkey_index,
 			       0, IB_MGMT_MAD_HDR, IB_MGMT_MAD_DATA,
 			       GFP_ATOMIC,
 			       IB_MGMT_BASE_VERSION);
 	if (IS_ERR(m)) {
 		ib_destroy_ah(ah);
-		return PTR_ERR(m);
+		ret = PTR_ERR(m);
+		goto out;
 	}
 
 	/* Timeout set by caller if response is expected. */
@@ -282,7 +319,10 @@ static int cm_alloc_msg(struct cm_id_pri
 	atomic_inc(&cm_id_priv->refcount);
 	m->context[0] = cm_id_priv;
 	*msg = m;
-	return 0;
+
+out:
+	spin_unlock_irqrestore(&cm.state_lock, flags2);
+	return ret;
 }
 
 static int cm_alloc_response_msg(struct cm_port *port,
@@ -352,7 +392,8 @@ static void cm_init_av_for_response(stru
 			   grh, &av->ah_attr);
 }
 
-static int cm_init_av_by_path(struct ib_sa_path_rec *path, struct cm_av *av)
+static int cm_init_av_by_path(struct ib_sa_path_rec *path, struct cm_av *av,
+			      struct cm_id_private *cm_id_priv)
 {
 	struct cm_device *cm_dev;
 	struct cm_port *port = NULL;
@@ -387,7 +428,17 @@ static int cm_init_av_by_path(struct ib_
 			     &av->ah_attr);
 	av->timeout = path->packet_life_time + 1;
 
-	return 0;
+	spin_lock_irqsave(&cm.lock, flags);
+	if (&cm_id_priv->av == av)
+		list_add_tail(&cm_id_priv->prim_list, &port->cm_priv_prim_list);
+	else if (&cm_id_priv->alt_av == av)
+		list_add_tail(&cm_id_priv->altr_list, &port->cm_priv_altr_list);
+	else
+		ret = -EINVAL;
+
+	spin_unlock_irqrestore(&cm.lock, flags);
+
+	return ret;
 }
 
 static int cm_alloc_id(struct cm_id_private *cm_id_priv)
@@ -677,6 +728,8 @@ struct ib_cm_id *ib_create_cm_id(struct
 	spin_lock_init(&cm_id_priv->lock);
 	init_completion(&cm_id_priv->comp);
 	INIT_LIST_HEAD(&cm_id_priv->work_list);
+	INIT_LIST_HEAD(&cm_id_priv->prim_list);
+	INIT_LIST_HEAD(&cm_id_priv->altr_list);
 	atomic_set(&cm_id_priv->work_count, -1);
 	atomic_set(&cm_id_priv->refcount, 1);
 	return &cm_id_priv->id;
@@ -782,11 +835,11 @@ static void cm_enter_timewait(struct cm_
 	wait_time = cm_convert_to_ms(cm_id_priv->av.timeout);
 
 	/* Check if the device started its remove_one */
-	spin_lock_irq(&cm.lock);
+	spin_lock_irqsave(&cm.lock, flags);
 	if (!cm_dev->going_down)
 		queue_delayed_work(cm.wq, &cm_id_priv->timewait_info->work.work,
 				   msecs_to_jiffies(wait_time));
-	spin_unlock_irq(&cm.lock);
+	spin_unlock_irqrestore(&cm.lock, flags);
 
 	cm_id_priv->timewait_info = NULL;
 }
@@ -892,6 +945,15 @@ retest:
 		break;
 	}
 
+	spin_lock_irq(&cm.lock);
+	if (!list_empty(&cm_id_priv->altr_list) &&
+	    (!cm_id_priv->altr_send_port_not_ready))
+		list_del(&cm_id_priv->altr_list);
+	if (!list_empty(&cm_id_priv->prim_list) &&
+	    (!cm_id_priv->prim_send_port_not_ready))
+		list_del(&cm_id_priv->prim_list);
+	spin_unlock_irq(&cm.lock);
+
 	cm_free_id(cm_id->local_id);
 	cm_deref_id(cm_id_priv);
 	wait_for_completion(&cm_id_priv->comp);
@@ -1192,12 +1254,13 @@ int ib_send_cm_req(struct ib_cm_id *cm_i
 		goto out;
 	}
 
-	ret = cm_init_av_by_path(param->primary_path, &cm_id_priv->av);
+	ret = cm_init_av_by_path(param->primary_path, &cm_id_priv->av,
+				 cm_id_priv);
 	if (ret)
 		goto error1;
 	if (param->alternate_path) {
 		ret = cm_init_av_by_path(param->alternate_path,
-					 &cm_id_priv->alt_av);
+					 &cm_id_priv->alt_av, cm_id_priv);
 		if (ret)
 			goto error1;
 	}
@@ -1639,7 +1702,8 @@ static int cm_req_handler(struct cm_work
 	cm_format_paths_from_req(req_msg, &work->path[0], &work->path[1]);
 
 	memcpy(work->path[0].dmac, cm_id_priv->av.ah_attr.dmac, ETH_ALEN);
-	ret = cm_init_av_by_path(&work->path[0], &cm_id_priv->av);
+	ret = cm_init_av_by_path(&work->path[0], &cm_id_priv->av,
+				 cm_id_priv);
 	if (ret) {
 		ib_get_cached_gid(work->port->cm_dev->ib_device,
 				  work->port->port_num, 0, &work->path[0].sgid,
@@ -1650,7 +1714,8 @@ static int cm_req_handler(struct cm_work
 		goto rejected;
 	}
 	if (req_msg->alt_local_lid) {
-		ret = cm_init_av_by_path(&work->path[1], &cm_id_priv->alt_av);
+		ret = cm_init_av_by_path(&work->path[1], &cm_id_priv->alt_av,
+					 cm_id_priv);
 		if (ret) {
 			ib_send_cm_rej(cm_id, IB_CM_REJ_INVALID_ALT_GID,
 				       &work->path[0].sgid,
@@ -2705,7 +2770,8 @@ int ib_send_cm_lap(struct ib_cm_id *cm_i
 		goto out;
 	}
 
-	ret = cm_init_av_by_path(alternate_path, &cm_id_priv->alt_av);
+	ret = cm_init_av_by_path(alternate_path, &cm_id_priv->alt_av,
+				 cm_id_priv);
 	if (ret)
 		goto out;
 	cm_id_priv->alt_av.timeout =
@@ -2817,7 +2883,8 @@ static int cm_lap_handler(struct cm_work
 	cm_init_av_for_response(work->port, work->mad_recv_wc->wc,
 				work->mad_recv_wc->recv_buf.grh,
 				&cm_id_priv->av);
-	cm_init_av_by_path(param->alternate_path, &cm_id_priv->alt_av);
+	cm_init_av_by_path(param->alternate_path, &cm_id_priv->alt_av,
+			   cm_id_priv);
 	ret = atomic_inc_and_test(&cm_id_priv->work_count);
 	if (!ret)
 		list_add_tail(&work->list, &cm_id_priv->work_list);
@@ -3009,7 +3076,7 @@ int ib_send_cm_sidr_req(struct ib_cm_id
 		return -EINVAL;
 
 	cm_id_priv = container_of(cm_id, struct cm_id_private, id);
-	ret = cm_init_av_by_path(param->path, &cm_id_priv->av);
+	ret = cm_init_av_by_path(param->path, &cm_id_priv->av, cm_id_priv);
 	if (ret)
 		goto out;
 
@@ -3430,14 +3497,14 @@ static int cm_establish(struct ib_cm_id
 	work->cm_event.event = IB_CM_USER_ESTABLISHED;
 
 	/* Check if the device started its remove_one */
-	spin_lock_irq(&cm.lock);
+	spin_lock_irqsave(&cm.lock, flags);
 	if (!cm_dev->going_down) {
 		queue_delayed_work(cm.wq, &work->work, 0);
 	} else {
 		kfree(work);
 		ret = -ENODEV;
 	}
-	spin_unlock_irq(&cm.lock);
+	spin_unlock_irqrestore(&cm.lock, flags);
 
 out:
 	return ret;
@@ -3446,7 +3513,9 @@ out:
 static int cm_migrate(struct ib_cm_id *cm_id)
 {
 	struct cm_id_private *cm_id_priv;
+	struct cm_av tmp_av;
 	unsigned long flags;
+	int tmp_send_port_not_ready;
 	int ret = 0;
 
 	cm_id_priv = container_of(cm_id, struct cm_id_private, id);
@@ -3455,7 +3524,14 @@ static int cm_migrate(struct ib_cm_id *c
 	    (cm_id->lap_state == IB_CM_LAP_UNINIT ||
 	     cm_id->lap_state == IB_CM_LAP_IDLE)) {
 		cm_id->lap_state = IB_CM_LAP_IDLE;
+		/* Swap address vector */
+		tmp_av = cm_id_priv->av;
 		cm_id_priv->av = cm_id_priv->alt_av;
+		cm_id_priv->alt_av = tmp_av;
+		/* Swap port send ready state */
+		tmp_send_port_not_ready = cm_id_priv->prim_send_port_not_ready;
+		cm_id_priv->prim_send_port_not_ready = cm_id_priv->altr_send_port_not_ready;
+		cm_id_priv->altr_send_port_not_ready = tmp_send_port_not_ready;
 	} else
 		ret = -EINVAL;
 	spin_unlock_irqrestore(&cm_id_priv->lock, flags);
@@ -3875,6 +3951,9 @@ static void cm_add_one(struct ib_device
 		port->cm_dev = cm_dev;
 		port->port_num = i;
 
+		INIT_LIST_HEAD(&port->cm_priv_prim_list);
+		INIT_LIST_HEAD(&port->cm_priv_altr_list);
+
 		ret = cm_create_port_fs(port);
 		if (ret)
 			goto error1;
@@ -3932,6 +4011,8 @@ static void cm_remove_one(struct ib_devi
 {
 	struct cm_device *cm_dev = client_data;
 	struct cm_port *port;
+	struct cm_id_private *cm_id_priv;
+	struct ib_mad_agent *cur_mad_agent;
 	struct ib_port_modify port_modify = {
 		.clr_port_cap_mask = IB_PORT_CM_SUP
 	};
@@ -3955,15 +4036,27 @@ static void cm_remove_one(struct ib_devi
 
 		port = cm_dev->port[i-1];
 		ib_modify_port(ib_device, port->port_num, 0, &port_modify);
+		/* Mark all the cm_id's as not valid */
+		spin_lock_irq(&cm.lock);
+		list_for_each_entry(cm_id_priv, &port->cm_priv_altr_list, altr_list)
+			cm_id_priv->altr_send_port_not_ready = 1;
+		list_for_each_entry(cm_id_priv, &port->cm_priv_prim_list, prim_list)
+			cm_id_priv->prim_send_port_not_ready = 1;
+		spin_unlock_irq(&cm.lock);
 		/*
 		 * We flush the queue here after the going_down set, this
 		 * verify that no new works will be queued in the recv handler,
 		 * after that we can call the unregister_mad_agent
 		 */
 		flush_workqueue(cm.wq);
-		ib_unregister_mad_agent(port->mad_agent);
+		spin_lock_irq(&cm.state_lock);
+		cur_mad_agent = port->mad_agent;
+		port->mad_agent = NULL;
+		spin_unlock_irq(&cm.state_lock);
+		ib_unregister_mad_agent(cur_mad_agent);
 		cm_remove_port_fs(port);
 	}
+
 	device_unregister(cm_dev->device);
 	kfree(cm_dev);
 }
@@ -3976,6 +4069,7 @@ static int __init ib_cm_init(void)
 	INIT_LIST_HEAD(&cm.device_list);
 	rwlock_init(&cm.device_lock);
 	spin_lock_init(&cm.lock);
+	spin_lock_init(&cm.state_lock);
 	cm.listen_service_table = RB_ROOT;
 	cm.listen_service_id = be64_to_cpu(IB_CM_ASSIGN_SERVICE_ID);
 	cm.remote_id_table = RB_ROOT;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/infiniband/core/iwpm_util.c linux-libre-4.4.107-gnu/drivers/infiniband/core/iwpm_util.c
--- linux-libre-4.4-gnu/drivers/infiniband/core/iwpm_util.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/infiniband/core/iwpm_util.c	2017-12-20 04:05:01.000000000 -0500
@@ -634,6 +634,7 @@ static int send_nlmsg_done(struct sk_buf
 	if (!(ibnl_put_msg(skb, &nlh, 0, 0, nl_client,
 			   RDMA_NL_IWPM_MAPINFO, NLM_F_MULTI))) {
 		pr_warn("%s Unable to put NLMSG_DONE\n", __func__);
+		dev_kfree_skb(skb);
 		return -ENOMEM;
 	}
 	nlh->nlmsg_type = NLMSG_DONE;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/infiniband/core/mad.c linux-libre-4.4.107-gnu/drivers/infiniband/core/mad.c
--- linux-libre-4.4-gnu/drivers/infiniband/core/mad.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/infiniband/core/mad.c	2017-12-20 04:05:01.000000000 -0500
@@ -1745,7 +1745,7 @@ find_mad_agent(struct ib_mad_port_privat
 			if (!class)
 				goto out;
 			if (convert_mgmt_class(mad_hdr->mgmt_class) >=
-			    IB_MGMT_MAX_METHODS)
+			    ARRAY_SIZE(class->method_table))
 				goto out;
 			method = class->method_table[convert_mgmt_class(
 							mad_hdr->mgmt_class)];
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/infiniband/core/multicast.c linux-libre-4.4.107-gnu/drivers/infiniband/core/multicast.c
--- linux-libre-4.4-gnu/drivers/infiniband/core/multicast.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/infiniband/core/multicast.c	2017-12-20 04:05:01.000000000 -0500
@@ -106,7 +106,6 @@ struct mcast_group {
 	atomic_t		refcount;
 	enum mcast_group_state	state;
 	struct ib_sa_query	*query;
-	int			query_id;
 	u16			pkey_index;
 	u8			leave_state;
 	int			retries;
@@ -339,11 +338,7 @@ static int send_join(struct mcast_group
 				       member->multicast.comp_mask,
 				       3000, GFP_KERNEL, join_handler, group,
 				       &group->query);
-	if (ret >= 0) {
-		group->query_id = ret;
-		ret = 0;
-	}
-	return ret;
+	return (ret > 0) ? 0 : ret;
 }
 
 static int send_leave(struct mcast_group *group, u8 leave_state)
@@ -363,11 +358,7 @@ static int send_leave(struct mcast_group
 				       IB_SA_MCMEMBER_REC_JOIN_STATE,
 				       3000, GFP_KERNEL, leave_handler,
 				       group, &group->query);
-	if (ret >= 0) {
-		group->query_id = ret;
-		ret = 0;
-	}
-	return ret;
+	return (ret > 0) ? 0 : ret;
 }
 
 static void join_group(struct mcast_group *group, struct mcast_member *member,
@@ -526,8 +517,11 @@ static void join_handler(int status, str
 		process_join_error(group, status);
 	else {
 		int mgids_changed, is_mgid0;
-		ib_find_pkey(group->port->dev->device, group->port->port_num,
-			     be16_to_cpu(rec->pkey), &pkey_index);
+
+		if (ib_find_pkey(group->port->dev->device,
+				 group->port->port_num, be16_to_cpu(rec->pkey),
+				 &pkey_index))
+			pkey_index = MCAST_INVALID_PKEY_INDEX;
 
 		spin_lock_irq(&group->port->lock);
 		if (group->state == MCAST_BUSY &&
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/infiniband/core/sa_query.c linux-libre-4.4.107-gnu/drivers/infiniband/core/sa_query.c
--- linux-libre-4.4-gnu/drivers/infiniband/core/sa_query.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/infiniband/core/sa_query.c	2017-12-20 04:05:01.000000000 -0500
@@ -534,7 +534,7 @@ static int ib_nl_send_msg(struct ib_sa_q
 	data = ibnl_put_msg(skb, &nlh, query->seq, 0, RDMA_NL_LS,
 			    RDMA_NL_LS_OP_RESOLVE, NLM_F_REQUEST);
 	if (!data) {
-		kfree_skb(skb);
+		nlmsg_free(skb);
 		return -EMSGSIZE;
 	}
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/infiniband/core/sysfs.c linux-libre-4.4.107-gnu/drivers/infiniband/core/sysfs.c
--- linux-libre-4.4-gnu/drivers/infiniband/core/sysfs.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/infiniband/core/sysfs.c	2017-12-20 04:05:01.000000000 -0500
@@ -863,7 +863,7 @@ err_put:
 	free_port_list_attributes(device);
 
 err_unregister:
-	device_unregister(class_dev);
+	device_del(class_dev);
 
 err:
 	return ret;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/infiniband/core/ucma.c linux-libre-4.4.107-gnu/drivers/infiniband/core/ucma.c
--- linux-libre-4.4-gnu/drivers/infiniband/core/ucma.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/infiniband/core/ucma.c	2017-12-20 04:05:01.000000000 -0500
@@ -1574,6 +1574,9 @@ static ssize_t ucma_write(struct file *f
 	struct rdma_ucm_cmd_hdr hdr;
 	ssize_t ret;
 
+	if (WARN_ON_ONCE(!ib_safe_file_access(filp)))
+		return -EACCES;
+
 	if (len < sizeof(hdr))
 		return -EINVAL;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/infiniband/core/ucm.c linux-libre-4.4.107-gnu/drivers/infiniband/core/ucm.c
--- linux-libre-4.4-gnu/drivers/infiniband/core/ucm.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/infiniband/core/ucm.c	2017-12-20 04:05:01.000000000 -0500
@@ -48,6 +48,7 @@
 
 #include <asm/uaccess.h>
 
+#include <rdma/ib.h>
 #include <rdma/ib_cm.h>
 #include <rdma/ib_user_cm.h>
 #include <rdma/ib_marshall.h>
@@ -1103,6 +1104,9 @@ static ssize_t ib_ucm_write(struct file
 	struct ib_ucm_cmd_hdr hdr;
 	ssize_t result;
 
+	if (WARN_ON_ONCE(!ib_safe_file_access(filp)))
+		return -EACCES;
+
 	if (len < sizeof(hdr))
 		return -EINVAL;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/infiniband/core/umem.c linux-libre-4.4.107-gnu/drivers/infiniband/core/umem.c
--- linux-libre-4.4-gnu/drivers/infiniband/core/umem.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/infiniband/core/umem.c	2017-12-20 04:05:01.000000000 -0500
@@ -134,6 +134,7 @@ struct ib_umem *ib_umem_get(struct ib_uc
 		 IB_ACCESS_REMOTE_ATOMIC | IB_ACCESS_MW_BIND));
 
 	if (access & IB_ACCESS_ON_DEMAND) {
+		put_pid(umem->pid);
 		ret = ib_umem_odp_get(context, umem);
 		if (ret) {
 			kfree(umem);
@@ -149,6 +150,7 @@ struct ib_umem *ib_umem_get(struct ib_uc
 
 	page_list = (struct page **) __get_free_page(GFP_KERNEL);
 	if (!page_list) {
+		put_pid(umem->pid);
 		kfree(umem);
 		return ERR_PTR(-ENOMEM);
 	}
@@ -175,7 +177,7 @@ struct ib_umem *ib_umem_get(struct ib_uc
 
 	cur_base = addr & PAGE_MASK;
 
-	if (npages == 0) {
+	if (npages == 0 || npages > UINT_MAX) {
 		ret = -EINVAL;
 		goto out;
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/infiniband/core/uverbs_cmd.c linux-libre-4.4.107-gnu/drivers/infiniband/core/uverbs_cmd.c
--- linux-libre-4.4-gnu/drivers/infiniband/core/uverbs_cmd.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/infiniband/core/uverbs_cmd.c	2017-12-20 04:05:01.000000000 -0500
@@ -2287,6 +2287,11 @@ ssize_t ib_uverbs_modify_qp(struct ib_uv
 	if (copy_from_user(&cmd, buf, sizeof cmd))
 		return -EFAULT;
 
+	if ((cmd.attr_mask & IB_QP_PORT) &&
+	    (cmd.port_num < rdma_start_port(ib_dev) ||
+	     cmd.port_num > rdma_end_port(ib_dev)))
+		return -EINVAL;
+
 	INIT_UDATA(&udata, buf + sizeof cmd, NULL, in_len - sizeof cmd,
 		   out_len);
 
@@ -2827,6 +2832,10 @@ ssize_t ib_uverbs_create_ah(struct ib_uv
 	if (copy_from_user(&cmd, buf, sizeof cmd))
 		return -EFAULT;
 
+	if (cmd.attr.port_num < rdma_start_port(ib_dev) ||
+	    cmd.attr.port_num > rdma_end_port(ib_dev))
+		return -EINVAL;
+
 	uobj = kmalloc(sizeof *uobj, GFP_KERNEL);
 	if (!uobj)
 		return -ENOMEM;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/infiniband/core/uverbs.h linux-libre-4.4.107-gnu/drivers/infiniband/core/uverbs.h
--- linux-libre-4.4-gnu/drivers/infiniband/core/uverbs.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/infiniband/core/uverbs.h	2017-12-20 04:05:01.000000000 -0500
@@ -116,6 +116,7 @@ struct ib_uverbs_event_file {
 struct ib_uverbs_file {
 	struct kref				ref;
 	struct mutex				mutex;
+	struct mutex                            cleanup_mutex; /* protect cleanup */
 	struct ib_uverbs_device		       *device;
 	struct ib_ucontext		       *ucontext;
 	struct ib_event_handler			event_handler;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/infiniband/core/uverbs_main.c linux-libre-4.4.107-gnu/drivers/infiniband/core/uverbs_main.c
--- linux-libre-4.4-gnu/drivers/infiniband/core/uverbs_main.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/infiniband/core/uverbs_main.c	2017-12-20 04:05:01.000000000 -0500
@@ -48,6 +48,8 @@
 
 #include <asm/uaccess.h>
 
+#include <rdma/ib.h>
+
 #include "uverbs.h"
 
 MODULE_AUTHOR("Roland Dreier");
@@ -242,12 +244,9 @@ static int ib_uverbs_cleanup_ucontext(st
 			container_of(uobj, struct ib_uqp_object, uevent.uobject);
 
 		idr_remove_uobj(&ib_uverbs_qp_idr, uobj);
-		if (qp != qp->real_qp) {
-			ib_close_qp(qp);
-		} else {
+		if (qp == qp->real_qp)
 			ib_uverbs_detach_umcast(qp, uqp);
-			ib_destroy_qp(qp);
-		}
+		ib_destroy_qp(qp);
 		ib_uverbs_release_uevent(file, &uqp->uevent);
 		kfree(uqp);
 	}
@@ -682,6 +681,9 @@ static ssize_t ib_uverbs_write(struct fi
 	int srcu_key;
 	ssize_t ret;
 
+	if (WARN_ON_ONCE(!ib_safe_file_access(filp)))
+		return -EACCES;
+
 	if (count < sizeof hdr)
 		return -EINVAL;
 
@@ -917,6 +919,7 @@ static int ib_uverbs_open(struct inode *
 	file->async_file = NULL;
 	kref_init(&file->ref);
 	mutex_init(&file->mutex);
+	mutex_init(&file->cleanup_mutex);
 
 	filp->private_data = file;
 	kobject_get(&dev->kobj);
@@ -942,18 +945,20 @@ static int ib_uverbs_close(struct inode
 {
 	struct ib_uverbs_file *file = filp->private_data;
 	struct ib_uverbs_device *dev = file->device;
-	struct ib_ucontext *ucontext = NULL;
+
+	mutex_lock(&file->cleanup_mutex);
+	if (file->ucontext) {
+		ib_uverbs_cleanup_ucontext(file, file->ucontext);
+		file->ucontext = NULL;
+	}
+	mutex_unlock(&file->cleanup_mutex);
 
 	mutex_lock(&file->device->lists_mutex);
-	ucontext = file->ucontext;
-	file->ucontext = NULL;
 	if (!file->is_closed) {
 		list_del(&file->list);
 		file->is_closed = 1;
 	}
 	mutex_unlock(&file->device->lists_mutex);
-	if (ucontext)
-		ib_uverbs_cleanup_ucontext(file, ucontext);
 
 	if (file->async_file)
 		kref_put(&file->async_file->ref, ib_uverbs_release_event_file);
@@ -1167,22 +1172,30 @@ static void ib_uverbs_free_hw_resources(
 	mutex_lock(&uverbs_dev->lists_mutex);
 	while (!list_empty(&uverbs_dev->uverbs_file_list)) {
 		struct ib_ucontext *ucontext;
-
 		file = list_first_entry(&uverbs_dev->uverbs_file_list,
 					struct ib_uverbs_file, list);
 		file->is_closed = 1;
-		ucontext = file->ucontext;
 		list_del(&file->list);
-		file->ucontext = NULL;
 		kref_get(&file->ref);
 		mutex_unlock(&uverbs_dev->lists_mutex);
-		/* We must release the mutex before going ahead and calling
-		 * disassociate_ucontext. disassociate_ucontext might end up
-		 * indirectly calling uverbs_close, for example due to freeing
-		 * the resources (e.g mmput).
-		 */
+
 		ib_uverbs_event_handler(&file->event_handler, &event);
+
+		mutex_lock(&file->cleanup_mutex);
+		ucontext = file->ucontext;
+		file->ucontext = NULL;
+		mutex_unlock(&file->cleanup_mutex);
+
+		/* At this point ib_uverbs_close cannot be running
+		 * ib_uverbs_cleanup_ucontext
+		 */
 		if (ucontext) {
+			/* We must release the mutex before going ahead and
+			 * calling disassociate_ucontext. disassociate_ucontext
+			 * might end up indirectly calling uverbs_close,
+			 * for example due to freeing the resources
+			 * (e.g mmput).
+			 */
 			ib_dev->disassociate_ucontext(ucontext);
 			ib_uverbs_cleanup_ucontext(file, ucontext);
 		}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/infiniband/hw/cxgb3/iwch_cm.c linux-libre-4.4.107-gnu/drivers/infiniband/hw/cxgb3/iwch_cm.c
--- linux-libre-4.4-gnu/drivers/infiniband/hw/cxgb3/iwch_cm.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/infiniband/hw/cxgb3/iwch_cm.c	2017-12-20 04:05:01.000000000 -0500
@@ -149,7 +149,7 @@ static int iwch_l2t_send(struct t3cdev *
 	error = l2t_send(tdev, skb, l2e);
 	if (error < 0)
 		kfree_skb(skb);
-	return error;
+	return error < 0 ? error : 0;
 }
 
 int iwch_cxgb3_ofld_send(struct t3cdev *tdev, struct sk_buff *skb)
@@ -165,7 +165,7 @@ int iwch_cxgb3_ofld_send(struct t3cdev *
 	error = cxgb3_ofld_send(tdev, skb);
 	if (error < 0)
 		kfree_skb(skb);
-	return error;
+	return error < 0 ? error : 0;
 }
 
 static void release_tid(struct t3cdev *tdev, u32 hwtid, struct sk_buff *skb)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/infiniband/hw/cxgb4/cq.c linux-libre-4.4.107-gnu/drivers/infiniband/hw/cxgb4/cq.c
--- linux-libre-4.4-gnu/drivers/infiniband/hw/cxgb4/cq.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/infiniband/hw/cxgb4/cq.c	2017-12-20 04:05:01.000000000 -0500
@@ -162,7 +162,7 @@ static int create_cq(struct c4iw_rdev *r
 	cq->bar2_va = c4iw_bar2_addrs(rdev, cq->cqid, T4_BAR2_QTYPE_INGRESS,
 				      &cq->bar2_qid,
 				      user ? &cq->bar2_pa : NULL);
-	if (user && !cq->bar2_va) {
+	if (user && !cq->bar2_pa) {
 		pr_warn(MOD "%s: cqid %u not in BAR2 range.\n",
 			pci_name(rdev->lldi.pdev), cq->cqid);
 		ret = -EINVAL;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/infiniband/hw/cxgb4/qp.c linux-libre-4.4.107-gnu/drivers/infiniband/hw/cxgb4/qp.c
--- linux-libre-4.4-gnu/drivers/infiniband/hw/cxgb4/qp.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/infiniband/hw/cxgb4/qp.c	2017-12-20 04:05:01.000000000 -0500
@@ -185,6 +185,10 @@ void __iomem *c4iw_bar2_addrs(struct c4i
 
 	if (pbar2_pa)
 		*pbar2_pa = (rdev->bar2_pa + bar2_qoffset) & PAGE_MASK;
+
+	if (is_t4(rdev->lldi.adapter_type))
+		return NULL;
+
 	return rdev->bar2_kva + bar2_qoffset;
 }
 
@@ -270,7 +274,7 @@ static int create_qp(struct c4iw_rdev *r
 	/*
 	 * User mode must have bar2 access.
 	 */
-	if (user && (!wq->sq.bar2_va || !wq->rq.bar2_va)) {
+	if (user && (!wq->sq.bar2_pa || !wq->rq.bar2_pa)) {
 		pr_warn(MOD "%s: sqid %u or rqid %u not in BAR2 range.\n",
 			pci_name(rdev->lldi.pdev), wq->sq.qid, wq->rq.qid);
 		goto free_dma;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/infiniband/hw/mlx4/ah.c linux-libre-4.4.107-gnu/drivers/infiniband/hw/mlx4/ah.c
--- linux-libre-4.4-gnu/drivers/infiniband/hw/mlx4/ah.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/infiniband/hw/mlx4/ah.c	2017-12-20 04:05:01.000000000 -0500
@@ -47,6 +47,7 @@ static struct ib_ah *create_ib_ah(struct
 
 	ah->av.ib.port_pd = cpu_to_be32(to_mpd(pd)->pdn | (ah_attr->port_num << 24));
 	ah->av.ib.g_slid  = ah_attr->src_path_bits;
+	ah->av.ib.sl_tclass_flowlabel = cpu_to_be32(ah_attr->sl << 28);
 	if (ah_attr->ah_flags & IB_AH_GRH) {
 		ah->av.ib.g_slid   |= 0x80;
 		ah->av.ib.gid_index = ah_attr->grh.sgid_index;
@@ -64,7 +65,6 @@ static struct ib_ah *create_ib_ah(struct
 		       !(1 << ah->av.ib.stat_rate & dev->caps.stat_rate_support))
 			--ah->av.ib.stat_rate;
 	}
-	ah->av.ib.sl_tclass_flowlabel = cpu_to_be32(ah_attr->sl << 28);
 
 	return &ah->ibah;
 }
@@ -102,7 +102,10 @@ static struct ib_ah *create_iboe_ah(stru
 	if (vlan_tag < 0x1000)
 		vlan_tag |= (ah_attr->sl & 7) << 13;
 	ah->av.eth.port_pd = cpu_to_be32(to_mpd(pd)->pdn | (ah_attr->port_num << 24));
-	ah->av.eth.gid_index = mlx4_ib_gid_index_to_real_index(ibdev, ah_attr->port_num, ah_attr->grh.sgid_index);
+	ret = mlx4_ib_gid_index_to_real_index(ibdev, ah_attr->port_num, ah_attr->grh.sgid_index);
+	if (ret < 0)
+		return ERR_PTR(ret);
+	ah->av.eth.gid_index = ret;
 	ah->av.eth.vlan = cpu_to_be16(vlan_tag);
 	if (ah_attr->static_rate) {
 		ah->av.eth.stat_rate = ah_attr->static_rate + MLX4_STAT_RATE_OFFSET;
@@ -110,7 +113,9 @@ static struct ib_ah *create_iboe_ah(stru
 		       !(1 << ah->av.eth.stat_rate & dev->caps.stat_rate_support))
 			--ah->av.eth.stat_rate;
 	}
-
+	ah->av.eth.sl_tclass_flowlabel |=
+			cpu_to_be32((ah_attr->grh.traffic_class << 20) |
+				    ah_attr->grh.flow_label);
 	/*
 	 * HW requires multicast LID so we just choose one.
 	 */
@@ -118,7 +123,7 @@ static struct ib_ah *create_iboe_ah(stru
 		ah->av.ib.dlid = cpu_to_be16(0xc000);
 
 	memcpy(ah->av.eth.dgid, ah_attr->grh.dgid.raw, 16);
-	ah->av.eth.sl_tclass_flowlabel = cpu_to_be32(ah_attr->sl << 29);
+	ah->av.eth.sl_tclass_flowlabel |= cpu_to_be32(ah_attr->sl << 29);
 
 	return &ah->ibah;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/infiniband/hw/mlx4/cq.c linux-libre-4.4.107-gnu/drivers/infiniband/hw/mlx4/cq.c
--- linux-libre-4.4-gnu/drivers/infiniband/hw/mlx4/cq.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/infiniband/hw/mlx4/cq.c	2017-12-20 04:05:01.000000000 -0500
@@ -253,11 +253,14 @@ struct ib_cq *mlx4_ib_create_cq(struct i
 	if (context)
 		if (ib_copy_to_udata(udata, &cq->mcq.cqn, sizeof (__u32))) {
 			err = -EFAULT;
-			goto err_dbmap;
+			goto err_cq_free;
 		}
 
 	return &cq->ibcq;
 
+err_cq_free:
+	mlx4_cq_free(dev->dev, &cq->mcq);
+
 err_dbmap:
 	if (context)
 		mlx4_ib_db_unmap_user(to_mucontext(context), &cq->db);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/infiniband/hw/mlx4/mad.c linux-libre-4.4.107-gnu/drivers/infiniband/hw/mlx4/mad.c
--- linux-libre-4.4-gnu/drivers/infiniband/hw/mlx4/mad.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/infiniband/hw/mlx4/mad.c	2017-12-20 04:05:01.000000000 -0500
@@ -526,7 +526,7 @@ int mlx4_ib_send_to_slave(struct mlx4_ib
 		tun_tx_ix = (++tun_qp->tx_ix_head) & (MLX4_NUM_TUNNEL_BUFS - 1);
 	spin_unlock(&tun_qp->tx_lock);
 	if (ret)
-		goto out;
+		goto end;
 
 	tun_mad = (struct mlx4_rcv_tunnel_mad *) (tun_qp->tx_ring[tun_tx_ix].buf.addr);
 	if (tun_qp->tx_ring[tun_tx_ix].ah)
@@ -595,9 +595,15 @@ int mlx4_ib_send_to_slave(struct mlx4_ib
 	wr.wr.send_flags = IB_SEND_SIGNALED;
 
 	ret = ib_post_send(src_qp, &wr.wr, &bad_wr);
-out:
-	if (ret)
-		ib_destroy_ah(ah);
+	if (!ret)
+		return 0;
+ out:
+	spin_lock(&tun_qp->tx_lock);
+	tun_qp->tx_ix_tail++;
+	spin_unlock(&tun_qp->tx_lock);
+	tun_qp->tx_ring[tun_tx_ix].ah = NULL;
+end:
+	ib_destroy_ah(ah);
 	return ret;
 }
 
@@ -1074,6 +1080,27 @@ void handle_port_mgmt_change_event(struc
 
 		/* Generate GUID changed event */
 		if (changed_attr & MLX4_EQ_PORT_INFO_GID_PFX_CHANGE_MASK) {
+			if (mlx4_is_master(dev->dev)) {
+				union ib_gid gid;
+				int err = 0;
+
+				if (!eqe->event.port_mgmt_change.params.port_info.gid_prefix)
+					err = __mlx4_ib_query_gid(&dev->ib_dev, port, 0, &gid, 1);
+				else
+					gid.global.subnet_prefix =
+						eqe->event.port_mgmt_change.params.port_info.gid_prefix;
+				if (err) {
+					pr_warn("Could not change QP1 subnet prefix for port %d: query_gid error (%d)\n",
+						port, err);
+				} else {
+					pr_debug("Changing QP1 subnet prefix for port %d. old=0x%llx. new=0x%llx\n",
+						 port,
+						 (u64)atomic64_read(&dev->sriov.demux[port - 1].subnet_prefix),
+						 be64_to_cpu(gid.global.subnet_prefix));
+					atomic64_set(&dev->sriov.demux[port - 1].subnet_prefix,
+						     be64_to_cpu(gid.global.subnet_prefix));
+				}
+			}
 			mlx4_ib_dispatch_event(dev, port, IB_EVENT_GID_CHANGE);
 			/*if master, notify all slaves*/
 			if (mlx4_is_master(dev->dev))
@@ -1278,9 +1305,15 @@ int mlx4_ib_send_to_wire(struct mlx4_ib_
 
 
 	ret = ib_post_send(send_qp, &wr.wr, &bad_wr);
+	if (!ret)
+		return 0;
+
+	spin_lock(&sqp->tx_lock);
+	sqp->tx_ix_tail++;
+	spin_unlock(&sqp->tx_lock);
+	sqp->tx_ring[wire_tx_ix].ah = NULL;
 out:
-	if (ret)
-		ib_destroy_ah(ah);
+	ib_destroy_ah(ah);
 	return ret;
 }
 
@@ -2142,6 +2175,8 @@ int mlx4_ib_init_sriov(struct mlx4_ib_de
 		if (err)
 			goto demux_err;
 		dev->sriov.demux[i].guid_cache[0] = gid.global.interface_id;
+		atomic64_set(&dev->sriov.demux[i].subnet_prefix,
+			     be64_to_cpu(gid.global.subnet_prefix));
 		err = alloc_pv_object(dev, mlx4_master_func_num(dev->dev), i + 1,
 				      &dev->sriov.sqps[i]);
 		if (err)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/infiniband/hw/mlx4/main.c linux-libre-4.4.107-gnu/drivers/infiniband/hw/mlx4/main.c
--- linux-libre-4.4-gnu/drivers/infiniband/hw/mlx4/main.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/infiniband/hw/mlx4/main.c	2017-12-20 04:05:01.000000000 -0500
@@ -630,9 +630,11 @@ static int eth_link_query_port(struct ib
 	if (err)
 		goto out;
 
-	props->active_width	=  (((u8 *)mailbox->buf)[5] == 0x40) ?
-						IB_WIDTH_4X : IB_WIDTH_1X;
-	props->active_speed	= IB_SPEED_QDR;
+	props->active_width	=  (((u8 *)mailbox->buf)[5] == 0x40) ||
+				   (((u8 *)mailbox->buf)[5] == 0x20 /*56Gb*/) ?
+					   IB_WIDTH_4X : IB_WIDTH_1X;
+	props->active_speed	=  (((u8 *)mailbox->buf)[5] == 0x20 /*56Gb*/) ?
+					   IB_SPEED_FDR : IB_SPEED_QDR;
 	props->port_cap_flags	= IB_PORT_CM_SUP | IB_PORT_IP_BASED_GIDS;
 	props->gid_tbl_len	= mdev->dev->caps.gid_table_len[port];
 	props->max_msg_sz	= mdev->dev->caps.max_msg_sz;
@@ -2401,14 +2403,19 @@ static void *mlx4_ib_add(struct mlx4_dev
 			goto err_steer_qp_release;
 		}
 
-		bitmap_zero(ibdev->ib_uc_qpns_bitmap, ibdev->steer_qpn_count);
-
-		err = mlx4_FLOW_STEERING_IB_UC_QP_RANGE(
-				dev, ibdev->steer_qpn_base,
-				ibdev->steer_qpn_base +
-				ibdev->steer_qpn_count - 1);
-		if (err)
-			goto err_steer_free_bitmap;
+		if (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_DMFS_IPOIB) {
+			bitmap_zero(ibdev->ib_uc_qpns_bitmap,
+				    ibdev->steer_qpn_count);
+			err = mlx4_FLOW_STEERING_IB_UC_QP_RANGE(
+					dev, ibdev->steer_qpn_base,
+					ibdev->steer_qpn_base +
+					ibdev->steer_qpn_count - 1);
+			if (err)
+				goto err_steer_free_bitmap;
+		} else {
+			bitmap_fill(ibdev->ib_uc_qpns_bitmap,
+				    ibdev->steer_qpn_count);
+		}
 	}
 
 	for (j = 1; j <= ibdev->dev->caps.num_ports; j++)
@@ -2484,6 +2491,7 @@ err_counter:
 		mlx4_ib_delete_counters_table(ibdev, &ibdev->counters_table[i]);
 
 err_map:
+	mlx4_ib_free_eqs(dev, ibdev);
 	iounmap(ibdev->uar_map);
 
 err_uar:
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/infiniband/hw/mlx4/mcg.c linux-libre-4.4.107-gnu/drivers/infiniband/hw/mlx4/mcg.c
--- linux-libre-4.4-gnu/drivers/infiniband/hw/mlx4/mcg.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/infiniband/hw/mlx4/mcg.c	2017-12-20 04:05:01.000000000 -0500
@@ -489,7 +489,7 @@ static u8 get_leave_state(struct mcast_g
 		if (!group->members[i])
 			leave_state |= (1 << i);
 
-	return leave_state & (group->rec.scope_join_state & 7);
+	return leave_state & (group->rec.scope_join_state & 0xf);
 }
 
 static int join_group(struct mcast_group *group, int slave, u8 join_mask)
@@ -564,8 +564,8 @@ static void mlx4_ib_mcg_timeout_handler(
 		} else
 			mcg_warn_group(group, "DRIVER BUG\n");
 	} else if (group->state == MCAST_LEAVE_SENT) {
-		if (group->rec.scope_join_state & 7)
-			group->rec.scope_join_state &= 0xf8;
+		if (group->rec.scope_join_state & 0xf)
+			group->rec.scope_join_state &= 0xf0;
 		group->state = MCAST_IDLE;
 		mutex_unlock(&group->lock);
 		if (release_group(group, 1))
@@ -605,7 +605,7 @@ static int handle_leave_req(struct mcast
 static int handle_join_req(struct mcast_group *group, u8 join_mask,
 			   struct mcast_req *req)
 {
-	u8 group_join_state = group->rec.scope_join_state & 7;
+	u8 group_join_state = group->rec.scope_join_state & 0xf;
 	int ref = 0;
 	u16 status;
 	struct ib_sa_mcmember_data *sa_data = (struct ib_sa_mcmember_data *)req->sa_mad.data;
@@ -690,8 +690,8 @@ static void mlx4_ib_mcg_work_handler(str
 			u8 cur_join_state;
 
 			resp_join_state = ((struct ib_sa_mcmember_data *)
-						group->response_sa_mad.data)->scope_join_state & 7;
-			cur_join_state = group->rec.scope_join_state & 7;
+						group->response_sa_mad.data)->scope_join_state & 0xf;
+			cur_join_state = group->rec.scope_join_state & 0xf;
 
 			if (method == IB_MGMT_METHOD_GET_RESP) {
 				/* successfull join */
@@ -710,7 +710,7 @@ process_requests:
 		req = list_first_entry(&group->pending_list, struct mcast_req,
 				       group_list);
 		sa_data = (struct ib_sa_mcmember_data *)req->sa_mad.data;
-		req_join_state = sa_data->scope_join_state & 0x7;
+		req_join_state = sa_data->scope_join_state & 0xf;
 
 		/* For a leave request, we will immediately answer the VF, and
 		 * update our internal counters. The actual leave will be sent
@@ -1105,7 +1105,8 @@ static void _mlx4_ib_mcg_port_cleanup(st
 	while ((p = rb_first(&ctx->mcg_table)) != NULL) {
 		group = rb_entry(p, struct mcast_group, node);
 		if (atomic_read(&group->refcount))
-			mcg_warn_group(group, "group refcount %d!!! (pointer %p)\n", atomic_read(&group->refcount), group);
+			mcg_debug_group(group, "group refcount %d!!! (pointer %p)\n",
+					atomic_read(&group->refcount), group);
 
 		force_clean_group(group);
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/infiniband/hw/mlx4/mlx4_ib.h linux-libre-4.4.107-gnu/drivers/infiniband/hw/mlx4/mlx4_ib.h
--- linux-libre-4.4-gnu/drivers/infiniband/hw/mlx4/mlx4_ib.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/infiniband/hw/mlx4/mlx4_ib.h	2017-12-20 04:05:01.000000000 -0500
@@ -441,7 +441,7 @@ struct mlx4_ib_demux_ctx {
 	struct workqueue_struct *wq;
 	struct workqueue_struct *ud_wq;
 	spinlock_t ud_lock;
-	__be64 subnet_prefix;
+	atomic64_t subnet_prefix;
 	__be64 guid_cache[128];
 	struct mlx4_ib_dev *dev;
 	/* the following lock protects both mcg_table and mcg_mgid0_list */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/infiniband/hw/mlx4/qp.c linux-libre-4.4.107-gnu/drivers/infiniband/hw/mlx4/qp.c
--- linux-libre-4.4-gnu/drivers/infiniband/hw/mlx4/qp.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/infiniband/hw/mlx4/qp.c	2017-12-20 04:05:01.000000000 -0500
@@ -357,7 +357,7 @@ static int send_wqe_overhead(enum mlx4_i
 			sizeof (struct mlx4_wqe_raddr_seg);
 	case MLX4_IB_QPT_RC:
 		return sizeof (struct mlx4_wqe_ctrl_seg) +
-			sizeof (struct mlx4_wqe_atomic_seg) +
+			sizeof (struct mlx4_wqe_masked_atomic_seg) +
 			sizeof (struct mlx4_wqe_raddr_seg);
 	case MLX4_IB_QPT_SMI:
 	case MLX4_IB_QPT_GSI:
@@ -1162,8 +1162,10 @@ struct ib_qp *mlx4_ib_create_qp(struct i
 	{
 		err = create_qp_common(to_mdev(pd->device), pd, init_attr,
 				       udata, 0, &qp, gfp);
-		if (err)
+		if (err) {
+			kfree(qp);
 			return ERR_PTR(err);
+		}
 
 		qp->ibqp.qp_num = qp->mqp.qpn;
 		qp->xrcdn = xrcdn;
@@ -1205,7 +1207,8 @@ int mlx4_ib_destroy_qp(struct ib_qp *qp)
 	if (is_qp0(dev, mqp))
 		mlx4_CLOSE_PORT(dev->dev, mqp->port);
 
-	if (dev->qp1_proxy[mqp->port - 1] == mqp) {
+	if (mqp->mlx4_ib_qp_type == MLX4_IB_QPT_PROXY_GSI &&
+	    dev->qp1_proxy[mqp->port - 1] == mqp) {
 		mutex_lock(&dev->qp1_proxy_lock[mqp->port - 1]);
 		dev->qp1_proxy[mqp->port - 1] = NULL;
 		mutex_unlock(&dev->qp1_proxy_lock[mqp->port - 1]);
@@ -1561,7 +1564,7 @@ static int __mlx4_ib_modify_qp(struct ib
 			context->mtu_msgmax = (IB_MTU_4096 << 5) |
 					      ilog2(dev->dev->caps.max_gso_sz);
 		else
-			context->mtu_msgmax = (IB_MTU_4096 << 5) | 12;
+			context->mtu_msgmax = (IB_MTU_4096 << 5) | 13;
 	} else if (attr_mask & IB_QP_PATH_MTU) {
 		if (attr->path_mtu < IB_MTU_256 || attr->path_mtu > IB_MTU_4096) {
 			pr_err("path MTU (%u) is invalid\n",
@@ -2329,24 +2332,27 @@ static int build_mlx_header(struct mlx4_
 		sqp->ud_header.grh.flow_label    =
 			ah->av.ib.sl_tclass_flowlabel & cpu_to_be32(0xfffff);
 		sqp->ud_header.grh.hop_limit     = ah->av.ib.hop_limit;
-		if (is_eth)
+		if (is_eth) {
 			memcpy(sqp->ud_header.grh.source_gid.raw, sgid.raw, 16);
-		else {
-		if (mlx4_is_mfunc(to_mdev(ib_dev)->dev)) {
-			/* When multi-function is enabled, the ib_core gid
-			 * indexes don't necessarily match the hw ones, so
-			 * we must use our own cache */
-			sqp->ud_header.grh.source_gid.global.subnet_prefix =
-				to_mdev(ib_dev)->sriov.demux[sqp->qp.port - 1].
-						       subnet_prefix;
-			sqp->ud_header.grh.source_gid.global.interface_id =
-				to_mdev(ib_dev)->sriov.demux[sqp->qp.port - 1].
-					       guid_cache[ah->av.ib.gid_index];
-		} else
-			ib_get_cached_gid(ib_dev,
-					  be32_to_cpu(ah->av.ib.port_pd) >> 24,
-					  ah->av.ib.gid_index,
-					  &sqp->ud_header.grh.source_gid, NULL);
+		} else {
+			if (mlx4_is_mfunc(to_mdev(ib_dev)->dev)) {
+				/* When multi-function is enabled, the ib_core gid
+				 * indexes don't necessarily match the hw ones, so
+				 * we must use our own cache
+				 */
+				sqp->ud_header.grh.source_gid.global.subnet_prefix =
+					cpu_to_be64(atomic64_read(&(to_mdev(ib_dev)->sriov.
+								    demux[sqp->qp.port - 1].
+								    subnet_prefix)));
+				sqp->ud_header.grh.source_gid.global.interface_id =
+					to_mdev(ib_dev)->sriov.demux[sqp->qp.port - 1].
+						       guid_cache[ah->av.ib.gid_index];
+			} else {
+				ib_get_cached_gid(ib_dev,
+						  be32_to_cpu(ah->av.ib.port_pd) >> 24,
+						  ah->av.ib.gid_index,
+						  &sqp->ud_header.grh.source_gid, NULL);
+			}
 		}
 		memcpy(sqp->ud_header.grh.destination_gid.raw,
 		       ah->av.ib.dgid, 16);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/infiniband/hw/mlx5/cq.c linux-libre-4.4.107-gnu/drivers/infiniband/hw/mlx5/cq.c
--- linux-libre-4.4-gnu/drivers/infiniband/hw/mlx5/cq.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/infiniband/hw/mlx5/cq.c	2017-12-20 04:05:01.000000000 -0500
@@ -756,14 +756,15 @@ struct ib_cq *mlx5_ib_create_cq(struct i
 	int uninitialized_var(index);
 	int uninitialized_var(inlen);
 	int cqe_size;
-	int irqn;
+	unsigned int irqn;
 	int eqn;
 	int err;
 
 	if (attr->flags)
 		return ERR_PTR(-EINVAL);
 
-	if (entries < 0)
+	if (entries < 0 ||
+	    (entries > (1 << MLX5_CAP_GEN(dev->mdev, log_max_cq_sz))))
 		return ERR_PTR(-EINVAL);
 
 	entries = roundup_pow_of_two(entries + 1);
@@ -786,8 +787,7 @@ struct ib_cq *mlx5_ib_create_cq(struct i
 		if (err)
 			goto err_create;
 	} else {
-		/* for now choose 64 bytes till we have a proper interface */
-		cqe_size = 64;
+		cqe_size = cache_line_size() == 128 ? 128 : 64;
 		err = create_cq_kernel(dev, cq, entries, cqe_size, &cqb,
 				       &index, &inlen);
 		if (err)
@@ -1094,11 +1094,16 @@ int mlx5_ib_resize_cq(struct ib_cq *ibcq
 		return -ENOSYS;
 	}
 
-	if (entries < 1)
+	if (entries < 1 ||
+	    entries > (1 << MLX5_CAP_GEN(dev->mdev, log_max_cq_sz))) {
+		mlx5_ib_warn(dev, "wrong entries number %d, max %d\n",
+			     entries,
+			     1 << MLX5_CAP_GEN(dev->mdev, log_max_cq_sz));
 		return -EINVAL;
+	}
 
 	entries = roundup_pow_of_two(entries + 1);
-	if (entries >  (1 << MLX5_CAP_GEN(dev->mdev, log_max_cq_sz)) + 1)
+	if (entries > (1 << MLX5_CAP_GEN(dev->mdev, log_max_cq_sz)) + 1)
 		return -EINVAL;
 
 	if (entries == ibcq->cqe + 1)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/infiniband/hw/mlx5/main.c linux-libre-4.4.107-gnu/drivers/infiniband/hw/mlx5/main.c
--- linux-libre-4.4-gnu/drivers/infiniband/hw/mlx5/main.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/infiniband/hw/mlx5/main.c	2017-12-20 04:05:01.000000000 -0500
@@ -273,9 +273,9 @@ static int mlx5_ib_query_device(struct i
 		     sizeof(struct mlx5_wqe_ctrl_seg)) /
 		     sizeof(struct mlx5_wqe_data_seg);
 	props->max_sge = min(max_rq_sg, max_sq_sg);
-	props->max_sge_rd = props->max_sge;
+	props->max_sge_rd	   = MLX5_MAX_SGE_RD;
 	props->max_cq		   = 1 << MLX5_CAP_GEN(mdev, log_max_cq);
-	props->max_cqe = (1 << MLX5_CAP_GEN(mdev, log_max_eq_sz)) - 1;
+	props->max_cqe = (1 << MLX5_CAP_GEN(mdev, log_max_cq_sz)) - 1;
 	props->max_mr		   = 1 << MLX5_CAP_GEN(mdev, log_max_mkey);
 	props->max_pd		   = 1 << MLX5_CAP_GEN(mdev, log_max_pd);
 	props->max_qp_rd_atom	   = 1 << MLX5_CAP_GEN(mdev, log_max_ra_req_qp);
@@ -405,8 +405,8 @@ static int mlx5_query_hca_port(struct ib
 	struct mlx5_ib_dev *dev = to_mdev(ibdev);
 	struct mlx5_core_dev *mdev = dev->mdev;
 	struct mlx5_hca_vport_context *rep;
-	int max_mtu;
-	int oper_mtu;
+	u16 max_mtu;
+	u16 oper_mtu;
 	int err;
 	u8 ib_link_width_oper;
 	u8 vl_hw_cap;
@@ -947,13 +947,13 @@ static void mlx5_ib_event(struct mlx5_co
 {
 	struct mlx5_ib_dev *ibdev = (struct mlx5_ib_dev *)context;
 	struct ib_event ibev;
-
+	bool fatal = false;
 	u8 port = 0;
 
 	switch (event) {
 	case MLX5_DEV_EVENT_SYS_ERROR:
-		ibdev->ib_active = false;
 		ibev.event = IB_EVENT_DEVICE_FATAL;
+		fatal = true;
 		break;
 
 	case MLX5_DEV_EVENT_PORT_UP:
@@ -962,14 +962,11 @@ static void mlx5_ib_event(struct mlx5_co
 		break;
 
 	case MLX5_DEV_EVENT_PORT_DOWN:
+	case MLX5_DEV_EVENT_PORT_INITIALIZED:
 		ibev.event = IB_EVENT_PORT_ERR;
 		port = (u8)param;
 		break;
 
-	case MLX5_DEV_EVENT_PORT_INITIALIZED:
-		/* not used by ULPs */
-		return;
-
 	case MLX5_DEV_EVENT_LID_CHANGE:
 		ibev.event = IB_EVENT_LID_CHANGE;
 		port = (u8)param;
@@ -1001,6 +998,9 @@ static void mlx5_ib_event(struct mlx5_co
 
 	if (ibdev->ib_active)
 		ib_dispatch_event(&ibev);
+
+	if (fatal)
+		ibdev->ib_active = false;
 }
 
 static void get_ext_port_caps(struct mlx5_ib_dev *dev)
@@ -1123,6 +1123,8 @@ static int create_umr_res(struct mlx5_ib
 	qp->real_qp    = qp;
 	qp->uobject    = NULL;
 	qp->qp_type    = MLX5_IB_QPT_REG_UMR;
+	qp->send_cq    = init_attr->send_cq;
+	qp->recv_cq    = init_attr->recv_cq;
 
 	attr->qp_state = IB_QPS_INIT;
 	attr->port_num = 1;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/infiniband/hw/mlx5/mr.c linux-libre-4.4.107-gnu/drivers/infiniband/hw/mlx5/mr.c
--- linux-libre-4.4-gnu/drivers/infiniband/hw/mlx5/mr.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/infiniband/hw/mlx5/mr.c	2017-12-20 04:05:01.000000000 -0500
@@ -614,6 +614,33 @@ int mlx5_mr_cache_init(struct mlx5_ib_de
 	return 0;
 }
 
+static void wait_for_async_commands(struct mlx5_ib_dev *dev)
+{
+	struct mlx5_mr_cache *cache = &dev->cache;
+	struct mlx5_cache_ent *ent;
+	int total = 0;
+	int i;
+	int j;
+
+	for (i = 0; i < MAX_MR_CACHE_ENTRIES; i++) {
+		ent = &cache->ent[i];
+		for (j = 0 ; j < 1000; j++) {
+			if (!ent->pending)
+				break;
+			msleep(50);
+		}
+	}
+	for (i = 0; i < MAX_MR_CACHE_ENTRIES; i++) {
+		ent = &cache->ent[i];
+		total += ent->pending;
+	}
+
+	if (total)
+		mlx5_ib_warn(dev, "aborted while there are %d pending mr requests\n", total);
+	else
+		mlx5_ib_warn(dev, "done with all pending requests\n");
+}
+
 int mlx5_mr_cache_cleanup(struct mlx5_ib_dev *dev)
 {
 	int i;
@@ -627,6 +654,7 @@ int mlx5_mr_cache_cleanup(struct mlx5_ib
 		clean_keys(dev, i);
 
 	destroy_workqueue(dev->cache.wq);
+	wait_for_async_commands(dev);
 	del_timer_sync(&dev->delay_timer);
 
 	return 0;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/infiniband/hw/mlx5/qp.c linux-libre-4.4.107-gnu/drivers/infiniband/hw/mlx5/qp.c
--- linux-libre-4.4-gnu/drivers/infiniband/hw/mlx5/qp.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/infiniband/hw/mlx5/qp.c	2017-12-20 04:05:01.000000000 -0500
@@ -226,6 +226,8 @@ static int set_rq_size(struct mlx5_ib_de
 		qp->rq.max_gs = 0;
 		qp->rq.wqe_cnt = 0;
 		qp->rq.wqe_shift = 0;
+		cap->max_recv_wr = 0;
+		cap->max_recv_sge = 0;
 	} else {
 		if (ucmd) {
 			qp->rq.wqe_cnt = ucmd->rq_wqe_count;
@@ -2525,10 +2527,11 @@ static u8 get_fence(u8 fence, struct ib_
 			return MLX5_FENCE_MODE_SMALL_AND_FENCE;
 		else
 			return fence;
-
-	} else {
-		return 0;
+	} else if (unlikely(wr->send_flags & IB_SEND_FENCE)) {
+		return MLX5_FENCE_MODE_FENCE;
 	}
+
+	return 0;
 }
 
 static int begin_wqe(struct mlx5_ib_qp *qp, void **seg,
@@ -3092,17 +3095,19 @@ int mlx5_ib_query_qp(struct ib_qp *ibqp,
 	qp_attr->cap.max_recv_sge    = qp->rq.max_gs;
 
 	if (!ibqp->uobject) {
-		qp_attr->cap.max_send_wr  = qp->sq.wqe_cnt;
+		qp_attr->cap.max_send_wr  = qp->sq.max_post;
 		qp_attr->cap.max_send_sge = qp->sq.max_gs;
+		qp_init_attr->qp_context = ibqp->qp_context;
 	} else {
 		qp_attr->cap.max_send_wr  = 0;
 		qp_attr->cap.max_send_sge = 0;
 	}
 
-	/* We don't support inline sends for kernel QPs (yet), and we
-	 * don't know what userspace's value should be.
-	 */
-	qp_attr->cap.max_inline_data = 0;
+	qp_init_attr->qp_type = ibqp->qp_type;
+	qp_init_attr->recv_cq = ibqp->recv_cq;
+	qp_init_attr->send_cq = ibqp->send_cq;
+	qp_init_attr->srq = ibqp->srq;
+	qp_attr->cap.max_inline_data = qp->max_inline_data;
 
 	qp_init_attr->cap	     = qp_attr->cap;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/infiniband/hw/qib/qib_file_ops.c linux-libre-4.4.107-gnu/drivers/infiniband/hw/qib/qib_file_ops.c
--- linux-libre-4.4-gnu/drivers/infiniband/hw/qib/qib_file_ops.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/infiniband/hw/qib/qib_file_ops.c	2017-12-20 04:05:01.000000000 -0500
@@ -45,6 +45,8 @@
 #include <linux/export.h>
 #include <linux/uio.h>
 
+#include <rdma/ib.h>
+
 #include "qib.h"
 #include "qib_common.h"
 #include "qib_user_sdma.h"
@@ -2067,6 +2069,9 @@ static ssize_t qib_write(struct file *fp
 	ssize_t ret = 0;
 	void *dest;
 
+	if (WARN_ON_ONCE(!ib_safe_file_access(fp)))
+		return -EACCES;
+
 	if (count < sizeof(cmd.type)) {
 		ret = -EINVAL;
 		goto bail;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/infiniband/hw/qib/qib_iba7322.c linux-libre-4.4.107-gnu/drivers/infiniband/hw/qib/qib_iba7322.c
--- linux-libre-4.4-gnu/drivers/infiniband/hw/qib/qib_iba7322.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/infiniband/hw/qib/qib_iba7322.c	2017-12-20 04:05:01.000000000 -0500
@@ -7097,7 +7097,7 @@ static void qib_7322_txchk_change(struct
 	unsigned long flags;
 
 	while (wait) {
-		unsigned long shadow;
+		unsigned long shadow = 0;
 		int cstart, previ = -1;
 
 		/*
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/infiniband/hw/qib/qib_qp.c linux-libre-4.4.107-gnu/drivers/infiniband/hw/qib/qib_qp.c
--- linux-libre-4.4-gnu/drivers/infiniband/hw/qib/qib_qp.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/infiniband/hw/qib/qib_qp.c	2017-12-20 04:05:01.000000000 -0500
@@ -41,13 +41,13 @@
 
 #include "qib.h"
 
-#define BITS_PER_PAGE           (PAGE_SIZE*BITS_PER_BYTE)
-#define BITS_PER_PAGE_MASK      (BITS_PER_PAGE-1)
+#define RVT_BITS_PER_PAGE           (PAGE_SIZE*BITS_PER_BYTE)
+#define RVT_BITS_PER_PAGE_MASK      (RVT_BITS_PER_PAGE-1)
 
 static inline unsigned mk_qpn(struct qib_qpn_table *qpt,
 			      struct qpn_map *map, unsigned off)
 {
-	return (map - qpt->map) * BITS_PER_PAGE + off;
+	return (map - qpt->map) * RVT_BITS_PER_PAGE + off;
 }
 
 static inline unsigned find_next_offset(struct qib_qpn_table *qpt,
@@ -59,7 +59,7 @@ static inline unsigned find_next_offset(
 		if (((off & qpt->mask) >> 1) >= n)
 			off = (off | qpt->mask) + 2;
 	} else
-		off = find_next_zero_bit(map->page, BITS_PER_PAGE, off);
+		off = find_next_zero_bit(map->page, RVT_BITS_PER_PAGE, off);
 	return off;
 }
 
@@ -100,9 +100,10 @@ static u32 credit_table[31] = {
 	32768                   /* 1E */
 };
 
-static void get_map_page(struct qib_qpn_table *qpt, struct qpn_map *map)
+static void get_map_page(struct qib_qpn_table *qpt, struct qpn_map *map,
+			 gfp_t gfp)
 {
-	unsigned long page = get_zeroed_page(GFP_KERNEL);
+	unsigned long page = get_zeroed_page(gfp);
 
 	/*
 	 * Free the page if someone raced with us installing it.
@@ -121,7 +122,7 @@ static void get_map_page(struct qib_qpn_
  * zero/one for QP type IB_QPT_SMI/IB_QPT_GSI.
  */
 static int alloc_qpn(struct qib_devdata *dd, struct qib_qpn_table *qpt,
-		     enum ib_qp_type type, u8 port)
+		     enum ib_qp_type type, u8 port, gfp_t gfp)
 {
 	u32 i, offset, max_scan, qpn;
 	struct qpn_map *map;
@@ -146,12 +147,12 @@ static int alloc_qpn(struct qib_devdata
 		qpn = 2;
 	if (qpt->mask && ((qpn & qpt->mask) >> 1) >= dd->n_krcv_queues)
 		qpn = (qpn | qpt->mask) + 2;
-	offset = qpn & BITS_PER_PAGE_MASK;
-	map = &qpt->map[qpn / BITS_PER_PAGE];
+	offset = qpn & RVT_BITS_PER_PAGE_MASK;
+	map = &qpt->map[qpn / RVT_BITS_PER_PAGE];
 	max_scan = qpt->nmaps - !offset;
 	for (i = 0;;) {
 		if (unlikely(!map->page)) {
-			get_map_page(qpt, map);
+			get_map_page(qpt, map, gfp);
 			if (unlikely(!map->page))
 				break;
 		}
@@ -172,7 +173,7 @@ static int alloc_qpn(struct qib_devdata
 			 * We just need to be sure we don't loop
 			 * forever.
 			 */
-		} while (offset < BITS_PER_PAGE && qpn < QPN_MAX);
+		} while (offset < RVT_BITS_PER_PAGE && qpn < QPN_MAX);
 		/*
 		 * In order to keep the number of pages allocated to a
 		 * minimum, we scan the all existing pages before increasing
@@ -203,9 +204,9 @@ static void free_qpn(struct qib_qpn_tabl
 {
 	struct qpn_map *map;
 
-	map = qpt->map + qpn / BITS_PER_PAGE;
+	map = qpt->map + qpn / RVT_BITS_PER_PAGE;
 	if (map->page)
-		clear_bit(qpn & BITS_PER_PAGE_MASK, map->page);
+		clear_bit(qpn & RVT_BITS_PER_PAGE_MASK, map->page);
 }
 
 static inline unsigned qpn_hash(struct qib_ibdev *dev, u32 qpn)
@@ -983,13 +984,21 @@ struct ib_qp *qib_create_qp(struct ib_pd
 	size_t sz;
 	size_t sg_list_sz;
 	struct ib_qp *ret;
+	gfp_t gfp;
+
 
 	if (init_attr->cap.max_send_sge > ib_qib_max_sges ||
 	    init_attr->cap.max_send_wr > ib_qib_max_qp_wrs ||
-	    init_attr->create_flags) {
-		ret = ERR_PTR(-EINVAL);
-		goto bail;
-	}
+	    init_attr->create_flags & ~(IB_QP_CREATE_USE_GFP_NOIO))
+		return ERR_PTR(-EINVAL);
+
+	/* GFP_NOIO is applicable in RC QPs only */
+	if (init_attr->create_flags & IB_QP_CREATE_USE_GFP_NOIO &&
+	    init_attr->qp_type != IB_QPT_RC)
+		return ERR_PTR(-EINVAL);
+
+	gfp = init_attr->create_flags & IB_QP_CREATE_USE_GFP_NOIO ?
+			GFP_NOIO : GFP_KERNEL;
 
 	/* Check receive queue parameters if no SRQ is specified. */
 	if (!init_attr->srq) {
@@ -1021,7 +1030,8 @@ struct ib_qp *qib_create_qp(struct ib_pd
 		sz = sizeof(struct qib_sge) *
 			init_attr->cap.max_send_sge +
 			sizeof(struct qib_swqe);
-		swq = vmalloc((init_attr->cap.max_send_wr + 1) * sz);
+		swq = __vmalloc((init_attr->cap.max_send_wr + 1) * sz,
+				gfp, PAGE_KERNEL);
 		if (swq == NULL) {
 			ret = ERR_PTR(-ENOMEM);
 			goto bail;
@@ -1037,13 +1047,13 @@ struct ib_qp *qib_create_qp(struct ib_pd
 		} else if (init_attr->cap.max_recv_sge > 1)
 			sg_list_sz = sizeof(*qp->r_sg_list) *
 				(init_attr->cap.max_recv_sge - 1);
-		qp = kzalloc(sz + sg_list_sz, GFP_KERNEL);
+		qp = kzalloc(sz + sg_list_sz, gfp);
 		if (!qp) {
 			ret = ERR_PTR(-ENOMEM);
 			goto bail_swq;
 		}
 		RCU_INIT_POINTER(qp->next, NULL);
-		qp->s_hdr = kzalloc(sizeof(*qp->s_hdr), GFP_KERNEL);
+		qp->s_hdr = kzalloc(sizeof(*qp->s_hdr), gfp);
 		if (!qp->s_hdr) {
 			ret = ERR_PTR(-ENOMEM);
 			goto bail_qp;
@@ -1058,8 +1068,16 @@ struct ib_qp *qib_create_qp(struct ib_pd
 			qp->r_rq.max_sge = init_attr->cap.max_recv_sge;
 			sz = (sizeof(struct ib_sge) * qp->r_rq.max_sge) +
 				sizeof(struct qib_rwqe);
-			qp->r_rq.wq = vmalloc_user(sizeof(struct qib_rwq) +
-						   qp->r_rq.size * sz);
+			if (gfp != GFP_NOIO)
+				qp->r_rq.wq = vmalloc_user(
+						sizeof(struct qib_rwq) +
+						qp->r_rq.size * sz);
+			else
+				qp->r_rq.wq = __vmalloc(
+						sizeof(struct qib_rwq) +
+						qp->r_rq.size * sz,
+						gfp, PAGE_KERNEL);
+
 			if (!qp->r_rq.wq) {
 				ret = ERR_PTR(-ENOMEM);
 				goto bail_qp;
@@ -1090,7 +1108,7 @@ struct ib_qp *qib_create_qp(struct ib_pd
 		dev = to_idev(ibpd->device);
 		dd = dd_from_dev(dev);
 		err = alloc_qpn(dd, &dev->qpn_table, init_attr->qp_type,
-				init_attr->port_num);
+				init_attr->port_num, gfp);
 		if (err < 0) {
 			ret = ERR_PTR(err);
 			vfree(qp->r_rq.wq);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/infiniband/hw/qib/qib_rc.c linux-libre-4.4.107-gnu/drivers/infiniband/hw/qib/qib_rc.c
--- linux-libre-4.4-gnu/drivers/infiniband/hw/qib/qib_rc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/infiniband/hw/qib/qib_rc.c	2017-12-20 04:05:01.000000000 -0500
@@ -2088,8 +2088,10 @@ send_last:
 		ret = qib_get_rwqe(qp, 1);
 		if (ret < 0)
 			goto nack_op_err;
-		if (!ret)
+		if (!ret) {
+			qib_put_ss(&qp->r_sge);
 			goto rnr_nak;
+		}
 		wc.ex.imm_data = ohdr->u.rc.imm_data;
 		hdrsize += 4;
 		wc.wc_flags = IB_WC_WITH_IMM;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/infiniband/hw/qib/qib_verbs_mcast.c linux-libre-4.4.107-gnu/drivers/infiniband/hw/qib/qib_verbs_mcast.c
--- linux-libre-4.4-gnu/drivers/infiniband/hw/qib/qib_verbs_mcast.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/infiniband/hw/qib/qib_verbs_mcast.c	2017-12-20 04:05:01.000000000 -0500
@@ -286,15 +286,13 @@ int qib_multicast_detach(struct ib_qp *i
 	struct qib_ibdev *dev = to_idev(ibqp->device);
 	struct qib_ibport *ibp = to_iport(ibqp->device, qp->port_num);
 	struct qib_mcast *mcast = NULL;
-	struct qib_mcast_qp *p, *tmp;
+	struct qib_mcast_qp *p, *tmp, *delp = NULL;
 	struct rb_node *n;
 	int last = 0;
 	int ret;
 
-	if (ibqp->qp_num <= 1 || qp->state == IB_QPS_RESET) {
-		ret = -EINVAL;
-		goto bail;
-	}
+	if (ibqp->qp_num <= 1 || qp->state == IB_QPS_RESET)
+		return -EINVAL;
 
 	spin_lock_irq(&ibp->lock);
 
@@ -303,8 +301,7 @@ int qib_multicast_detach(struct ib_qp *i
 	while (1) {
 		if (n == NULL) {
 			spin_unlock_irq(&ibp->lock);
-			ret = -EINVAL;
-			goto bail;
+			return -EINVAL;
 		}
 
 		mcast = rb_entry(n, struct qib_mcast, rb_node);
@@ -328,6 +325,7 @@ int qib_multicast_detach(struct ib_qp *i
 		 */
 		list_del_rcu(&p->list);
 		mcast->n_attached--;
+		delp = p;
 
 		/* If this was the last attached QP, remove the GID too. */
 		if (list_empty(&mcast->qp_list)) {
@@ -338,15 +336,16 @@ int qib_multicast_detach(struct ib_qp *i
 	}
 
 	spin_unlock_irq(&ibp->lock);
+	/* QP not attached */
+	if (!delp)
+		return -EINVAL;
+	/*
+	 * Wait for any list walkers to finish before freeing the
+	 * list element.
+	 */
+	wait_event(mcast->wait, atomic_read(&mcast->refcount) <= 1);
+	qib_mcast_qp_free(delp);
 
-	if (p) {
-		/*
-		 * Wait for any list walkers to finish before freeing the
-		 * list element.
-		 */
-		wait_event(mcast->wait, atomic_read(&mcast->refcount) <= 1);
-		qib_mcast_qp_free(p);
-	}
 	if (last) {
 		atomic_dec(&mcast->refcount);
 		wait_event(mcast->wait, !atomic_read(&mcast->refcount));
@@ -355,11 +354,7 @@ int qib_multicast_detach(struct ib_qp *i
 		dev->n_mcast_grps_allocated--;
 		spin_unlock_irq(&dev->n_mcast_grps_lock);
 	}
-
-	ret = 0;
-
-bail:
-	return ret;
+	return 0;
 }
 
 int qib_mcast_tree_empty(struct qib_ibport *ibp)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/infiniband/ulp/ipoib/ipoib_cm.c linux-libre-4.4.107-gnu/drivers/infiniband/ulp/ipoib/ipoib_cm.c
--- linux-libre-4.4-gnu/drivers/infiniband/ulp/ipoib/ipoib_cm.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/infiniband/ulp/ipoib/ipoib_cm.c	2017-12-20 04:05:01.000000000 -0500
@@ -63,6 +63,8 @@ MODULE_PARM_DESC(cm_data_debug_level,
 #define IPOIB_CM_RX_DELAY       (3 * 256 * HZ)
 #define IPOIB_CM_RX_UPDATE_MASK (0x3)
 
+#define IPOIB_CM_RX_RESERVE     (ALIGN(IPOIB_HARD_LEN, 16) - IPOIB_ENCAP_LEN)
+
 static struct ib_qp_attr ipoib_cm_err_attr = {
 	.qp_state = IB_QPS_ERR
 };
@@ -147,15 +149,15 @@ static struct sk_buff *ipoib_cm_alloc_rx
 	struct sk_buff *skb;
 	int i;
 
-	skb = dev_alloc_skb(IPOIB_CM_HEAD_SIZE + 12);
+	skb = dev_alloc_skb(ALIGN(IPOIB_CM_HEAD_SIZE + IPOIB_PSEUDO_LEN, 16));
 	if (unlikely(!skb))
 		return NULL;
 
 	/*
-	 * IPoIB adds a 4 byte header. So we need 12 more bytes to align the
+	 * IPoIB adds a IPOIB_ENCAP_LEN byte header, this will align the
 	 * IP header to a multiple of 16.
 	 */
-	skb_reserve(skb, 12);
+	skb_reserve(skb, IPOIB_CM_RX_RESERVE);
 
 	mapping[0] = ib_dma_map_single(priv->ca, skb->data, IPOIB_CM_HEAD_SIZE,
 				       DMA_FROM_DEVICE);
@@ -624,9 +626,9 @@ void ipoib_cm_handle_rx_wc(struct net_de
 	if (wc->byte_len < IPOIB_CM_COPYBREAK) {
 		int dlen = wc->byte_len;
 
-		small_skb = dev_alloc_skb(dlen + 12);
+		small_skb = dev_alloc_skb(dlen + IPOIB_CM_RX_RESERVE);
 		if (small_skb) {
-			skb_reserve(small_skb, 12);
+			skb_reserve(small_skb, IPOIB_CM_RX_RESERVE);
 			ib_dma_sync_single_for_cpu(priv->ca, rx_ring[wr_id].mapping[0],
 						   dlen, DMA_FROM_DEVICE);
 			skb_copy_from_linear_data(skb, small_skb->data, dlen);
@@ -663,8 +665,7 @@ void ipoib_cm_handle_rx_wc(struct net_de
 
 copied:
 	skb->protocol = ((struct ipoib_header *) skb->data)->proto;
-	skb_reset_mac_header(skb);
-	skb_pull(skb, IPOIB_ENCAP_LEN);
+	skb_add_pseudo_hdr(skb);
 
 	++dev->stats.rx_packets;
 	dev->stats.rx_bytes += skb->len;
@@ -1035,8 +1036,6 @@ static struct ib_qp *ipoib_cm_create_tx_
 
 	tx_qp = ib_create_qp(priv->pd, &attr);
 	if (PTR_ERR(tx_qp) == -EINVAL) {
-		ipoib_warn(priv, "can't use GFP_NOIO for QPs on device %s, using GFP_KERNEL\n",
-			   priv->ca->name);
 		attr.create_flags &= ~IB_QP_CREATE_USE_GFP_NOIO;
 		tx_qp = ib_create_qp(priv->pd, &attr);
 	}
@@ -1299,6 +1298,8 @@ void ipoib_cm_destroy_tx(struct ipoib_cm
 	}
 }
 
+#define QPN_AND_OPTIONS_OFFSET	4
+
 static void ipoib_cm_tx_start(struct work_struct *work)
 {
 	struct ipoib_dev_priv *priv = container_of(work, struct ipoib_dev_priv,
@@ -1307,6 +1308,7 @@ static void ipoib_cm_tx_start(struct wor
 	struct ipoib_neigh *neigh;
 	struct ipoib_cm_tx *p;
 	unsigned long flags;
+	struct ipoib_path *path;
 	int ret;
 
 	struct ib_sa_path_rec pathrec;
@@ -1319,7 +1321,19 @@ static void ipoib_cm_tx_start(struct wor
 		p = list_entry(priv->cm.start_list.next, typeof(*p), list);
 		list_del_init(&p->list);
 		neigh = p->neigh;
+
 		qpn = IPOIB_QPN(neigh->daddr);
+		/*
+		 * As long as the search is with these 2 locks,
+		 * path existence indicates its validity.
+		 */
+		path = __path_find(dev, neigh->daddr + QPN_AND_OPTIONS_OFFSET);
+		if (!path) {
+			pr_info("%s ignore not valid path %pI6\n",
+				__func__,
+				neigh->daddr + QPN_AND_OPTIONS_OFFSET);
+			goto free_neigh;
+		}
 		memcpy(&pathrec, &p->path->pathrec, sizeof pathrec);
 
 		spin_unlock_irqrestore(&priv->lock, flags);
@@ -1331,6 +1345,7 @@ static void ipoib_cm_tx_start(struct wor
 		spin_lock_irqsave(&priv->lock, flags);
 
 		if (ret) {
+free_neigh:
 			neigh = p->neigh;
 			if (neigh) {
 				neigh->cm = NULL;
@@ -1358,7 +1373,7 @@ static void ipoib_cm_tx_reap(struct work
 
 	while (!list_empty(&priv->cm.reap_list)) {
 		p = list_entry(priv->cm.reap_list.next, typeof(*p), list);
-		list_del(&p->list);
+		list_del_init(&p->list);
 		spin_unlock_irqrestore(&priv->lock, flags);
 		netif_tx_unlock_bh(dev);
 		ipoib_cm_tx_destroy(p);
@@ -1473,12 +1488,14 @@ static ssize_t set_mode(struct device *d
 
 	ret = ipoib_set_mode(dev, buf);
 
-	rtnl_unlock();
-
-	if (!ret)
-		return count;
+	/* The assumption is that the function ipoib_set_mode returned
+	 * with the rtnl held by it, if not the value -EBUSY returned,
+	 * then no need to rtnl_unlock
+	 */
+	if (ret != -EBUSY)
+		rtnl_unlock();
 
-	return ret;
+	return (!ret || ret == -EBUSY) ? count : ret;
 }
 
 static DEVICE_ATTR(mode, S_IWUSR | S_IRUGO, show_mode, set_mode);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/infiniband/ulp/ipoib/ipoib_fs.c linux-libre-4.4.107-gnu/drivers/infiniband/ulp/ipoib/ipoib_fs.c
--- linux-libre-4.4-gnu/drivers/infiniband/ulp/ipoib/ipoib_fs.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/infiniband/ulp/ipoib/ipoib_fs.c	2017-12-20 04:05:01.000000000 -0500
@@ -281,8 +281,11 @@ void ipoib_delete_debug_files(struct net
 {
 	struct ipoib_dev_priv *priv = netdev_priv(dev);
 
+	WARN_ONCE(!priv->mcg_dentry, "null mcg debug file\n");
+	WARN_ONCE(!priv->path_dentry, "null path debug file\n");
 	debugfs_remove(priv->mcg_dentry);
 	debugfs_remove(priv->path_dentry);
+	priv->mcg_dentry = priv->path_dentry = NULL;
 }
 
 int ipoib_register_debugfs(void)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/infiniband/ulp/ipoib/ipoib.h linux-libre-4.4.107-gnu/drivers/infiniband/ulp/ipoib/ipoib.h
--- linux-libre-4.4-gnu/drivers/infiniband/ulp/ipoib/ipoib.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/infiniband/ulp/ipoib/ipoib.h	2017-12-20 04:05:01.000000000 -0500
@@ -63,6 +63,8 @@ enum ipoib_flush_level {
 
 enum {
 	IPOIB_ENCAP_LEN		  = 4,
+	IPOIB_PSEUDO_LEN	  = 20,
+	IPOIB_HARD_LEN		  = IPOIB_ENCAP_LEN + IPOIB_PSEUDO_LEN,
 
 	IPOIB_UD_HEAD_SIZE	  = IB_GRH_BYTES + IPOIB_ENCAP_LEN,
 	IPOIB_UD_RX_SG		  = 2, /* max buffer needed for 4K mtu */
@@ -131,15 +133,21 @@ struct ipoib_header {
 	u16	reserved;
 };
 
-struct ipoib_cb {
-	struct qdisc_skb_cb	qdisc_cb;
-	u8			hwaddr[INFINIBAND_ALEN];
+struct ipoib_pseudo_header {
+	u8	hwaddr[INFINIBAND_ALEN];
 };
 
-static inline struct ipoib_cb *ipoib_skb_cb(const struct sk_buff *skb)
+static inline void skb_add_pseudo_hdr(struct sk_buff *skb)
 {
-	BUILD_BUG_ON(sizeof(skb->cb) < sizeof(struct ipoib_cb));
-	return (struct ipoib_cb *)skb->cb;
+	char *data = skb_push(skb, IPOIB_PSEUDO_LEN);
+
+	/*
+	 * only the ipoib header is present now, make room for a dummy
+	 * pseudo header and set skb field accordingly
+	 */
+	memset(data, 0, IPOIB_PSEUDO_LEN);
+	skb_reset_mac_header(skb);
+	skb_pull(skb, IPOIB_HARD_LEN);
 }
 
 /* Used for all multicast joins (broadcast, IPv4 mcast and IPv6 mcast) */
@@ -472,6 +480,7 @@ void ipoib_send(struct net_device *dev,
 		struct ipoib_ah *address, u32 qpn);
 void ipoib_reap_ah(struct work_struct *work);
 
+struct ipoib_path *__path_find(struct net_device *dev, void *gid);
 void ipoib_mark_paths_invalid(struct net_device *dev);
 void ipoib_flush_paths(struct net_device *dev);
 struct ipoib_dev_priv *ipoib_intf_alloc(const char *format);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/infiniband/ulp/ipoib/ipoib_ib.c linux-libre-4.4.107-gnu/drivers/infiniband/ulp/ipoib/ipoib_ib.c
--- linux-libre-4.4-gnu/drivers/infiniband/ulp/ipoib/ipoib_ib.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/infiniband/ulp/ipoib/ipoib_ib.c	2017-12-20 04:05:01.000000000 -0500
@@ -130,16 +130,15 @@ static struct sk_buff *ipoib_alloc_rx_sk
 
 	buf_size = IPOIB_UD_BUF_SIZE(priv->max_ib_mtu);
 
-	skb = dev_alloc_skb(buf_size + IPOIB_ENCAP_LEN);
+	skb = dev_alloc_skb(buf_size + IPOIB_HARD_LEN);
 	if (unlikely(!skb))
 		return NULL;
 
 	/*
-	 * IB will leave a 40 byte gap for a GRH and IPoIB adds a 4 byte
-	 * header.  So we need 4 more bytes to get to 48 and align the
-	 * IP header to a multiple of 16.
+	 * the IP header will be at IPOIP_HARD_LEN + IB_GRH_BYTES, that is
+	 * 64 bytes aligned
 	 */
-	skb_reserve(skb, 4);
+	skb_reserve(skb, sizeof(struct ipoib_pseudo_header));
 
 	mapping = priv->rx_ring[id].mapping;
 	mapping[0] = ib_dma_map_single(priv->ca, skb->data, buf_size,
@@ -242,10 +241,7 @@ static void ipoib_ib_handle_rx_wc(struct
 	skb_pull(skb, IB_GRH_BYTES);
 
 	skb->protocol = ((struct ipoib_header *) skb->data)->proto;
-	skb_reset_mac_header(skb);
-	skb_pull(skb, IPOIB_ENCAP_LEN);
-
-	skb->truesize = SKB_TRUESIZE(skb->len);
+	skb_add_pseudo_hdr(skb);
 
 	++dev->stats.rx_packets;
 	dev->stats.rx_bytes += skb->len;
@@ -1030,8 +1026,17 @@ static void __ipoib_ib_dev_flush(struct
 	}
 
 	if (level == IPOIB_FLUSH_LIGHT) {
+		int oper_up;
 		ipoib_mark_paths_invalid(dev);
+		/* Set IPoIB operation as down to prevent races between:
+		 * the flush flow which leaves MCG and on the fly joins
+		 * which can happen during that time. mcast restart task
+		 * should deal with join requests we missed.
+		 */
+		oper_up = test_and_clear_bit(IPOIB_FLAG_OPER_UP, &priv->flags);
 		ipoib_mcast_dev_flush(dev);
+		if (oper_up)
+			set_bit(IPOIB_FLAG_OPER_UP, &priv->flags);
 		ipoib_flush_ah(dev);
 	}
 
@@ -1039,10 +1044,15 @@ static void __ipoib_ib_dev_flush(struct
 		ipoib_ib_dev_down(dev);
 
 	if (level == IPOIB_FLUSH_HEAVY) {
+		rtnl_lock();
 		if (test_bit(IPOIB_FLAG_INITIALIZED, &priv->flags))
 			ipoib_ib_dev_stop(dev);
-		if (ipoib_ib_dev_open(dev) != 0)
+
+		result = ipoib_ib_dev_open(dev);
+		rtnl_unlock();
+		if (result)
 			return;
+
 		if (netif_queue_stopped(dev))
 			netif_start_queue(dev);
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/infiniband/ulp/ipoib/ipoib_main.c linux-libre-4.4.107-gnu/drivers/infiniband/ulp/ipoib/ipoib_main.c
--- linux-libre-4.4-gnu/drivers/infiniband/ulp/ipoib/ipoib_main.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/infiniband/ulp/ipoib/ipoib_main.c	2017-12-20 04:05:01.000000000 -0500
@@ -106,6 +106,33 @@ static struct ib_client ipoib_client = {
 	.get_net_dev_by_params = ipoib_get_net_dev_by_params,
 };
 
+#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
+static int ipoib_netdev_event(struct notifier_block *this,
+			      unsigned long event, void *ptr)
+{
+	struct netdev_notifier_info *ni = ptr;
+	struct net_device *dev = ni->dev;
+
+	if (dev->netdev_ops->ndo_open != ipoib_open)
+		return NOTIFY_DONE;
+
+	switch (event) {
+	case NETDEV_REGISTER:
+		ipoib_create_debug_files(dev);
+		break;
+	case NETDEV_CHANGENAME:
+		ipoib_delete_debug_files(dev);
+		ipoib_create_debug_files(dev);
+		break;
+	case NETDEV_UNREGISTER:
+		ipoib_delete_debug_files(dev);
+		break;
+	}
+
+	return NOTIFY_DONE;
+}
+#endif
+
 int ipoib_open(struct net_device *dev)
 {
 	struct ipoib_dev_priv *priv = netdev_priv(dev);
@@ -464,8 +491,7 @@ int ipoib_set_mode(struct net_device *de
 		priv->tx_wr.wr.send_flags &= ~IB_SEND_IP_CSUM;
 
 		ipoib_flush_paths(dev);
-		rtnl_lock();
-		return 0;
+		return (!rtnl_trylock()) ? -EBUSY : 0;
 	}
 
 	if (!strcmp(buf, "datagram\n")) {
@@ -474,14 +500,13 @@ int ipoib_set_mode(struct net_device *de
 		dev_set_mtu(dev, min(priv->mcast_mtu, dev->mtu));
 		rtnl_unlock();
 		ipoib_flush_paths(dev);
-		rtnl_lock();
-		return 0;
+		return (!rtnl_trylock()) ? -EBUSY : 0;
 	}
 
 	return -EINVAL;
 }
 
-static struct ipoib_path *__path_find(struct net_device *dev, void *gid)
+struct ipoib_path *__path_find(struct net_device *dev, void *gid)
 {
 	struct ipoib_dev_priv *priv = netdev_priv(dev);
 	struct rb_node *n = priv->path_tree.rb_node;
@@ -628,6 +653,14 @@ void ipoib_mark_paths_invalid(struct net
 	spin_unlock_irq(&priv->lock);
 }
 
+static void push_pseudo_header(struct sk_buff *skb, const char *daddr)
+{
+	struct ipoib_pseudo_header *phdr;
+
+	phdr = (struct ipoib_pseudo_header *)skb_push(skb, sizeof(*phdr));
+	memcpy(phdr->hwaddr, daddr, INFINIBAND_ALEN);
+}
+
 void ipoib_flush_paths(struct net_device *dev)
 {
 	struct ipoib_dev_priv *priv = netdev_priv(dev);
@@ -850,9 +883,11 @@ static void neigh_add_path(struct sk_buf
 				ipoib_neigh_free(neigh);
 				goto err_drop;
 			}
-			if (skb_queue_len(&neigh->queue) < IPOIB_MAX_PATH_REC_QUEUE)
+			if (skb_queue_len(&neigh->queue) <
+			    IPOIB_MAX_PATH_REC_QUEUE) {
+				push_pseudo_header(skb, neigh->daddr);
 				__skb_queue_tail(&neigh->queue, skb);
-			else {
+			} else {
 				ipoib_warn(priv, "queue length limit %d. Packet drop.\n",
 					   skb_queue_len(&neigh->queue));
 				goto err_drop;
@@ -868,10 +903,12 @@ static void neigh_add_path(struct sk_buf
 
 		if (!path->query && path_rec_start(dev, path))
 			goto err_path;
-		if (skb_queue_len(&neigh->queue) < IPOIB_MAX_PATH_REC_QUEUE)
+		if (skb_queue_len(&neigh->queue) < IPOIB_MAX_PATH_REC_QUEUE) {
+			push_pseudo_header(skb, neigh->daddr);
 			__skb_queue_tail(&neigh->queue, skb);
-		else
+		} else {
 			goto err_drop;
+		}
 	}
 
 	spin_unlock_irqrestore(&priv->lock, flags);
@@ -889,7 +926,7 @@ err_drop:
 }
 
 static void unicast_arp_send(struct sk_buff *skb, struct net_device *dev,
-			     struct ipoib_cb *cb)
+			     struct ipoib_pseudo_header *phdr)
 {
 	struct ipoib_dev_priv *priv = netdev_priv(dev);
 	struct ipoib_path *path;
@@ -897,16 +934,17 @@ static void unicast_arp_send(struct sk_b
 
 	spin_lock_irqsave(&priv->lock, flags);
 
-	path = __path_find(dev, cb->hwaddr + 4);
+	path = __path_find(dev, phdr->hwaddr + 4);
 	if (!path || !path->valid) {
 		int new_path = 0;
 
 		if (!path) {
-			path = path_rec_create(dev, cb->hwaddr + 4);
+			path = path_rec_create(dev, phdr->hwaddr + 4);
 			new_path = 1;
 		}
 		if (path) {
 			if (skb_queue_len(&path->queue) < IPOIB_MAX_PATH_REC_QUEUE) {
+				push_pseudo_header(skb, phdr->hwaddr);
 				__skb_queue_tail(&path->queue, skb);
 			} else {
 				++dev->stats.tx_dropped;
@@ -934,10 +972,11 @@ static void unicast_arp_send(struct sk_b
 			  be16_to_cpu(path->pathrec.dlid));
 
 		spin_unlock_irqrestore(&priv->lock, flags);
-		ipoib_send(dev, skb, path->ah, IPOIB_QPN(cb->hwaddr));
+		ipoib_send(dev, skb, path->ah, IPOIB_QPN(phdr->hwaddr));
 		return;
 	} else if ((path->query || !path_rec_start(dev, path)) &&
 		   skb_queue_len(&path->queue) < IPOIB_MAX_PATH_REC_QUEUE) {
+		push_pseudo_header(skb, phdr->hwaddr);
 		__skb_queue_tail(&path->queue, skb);
 	} else {
 		++dev->stats.tx_dropped;
@@ -951,13 +990,15 @@ static int ipoib_start_xmit(struct sk_bu
 {
 	struct ipoib_dev_priv *priv = netdev_priv(dev);
 	struct ipoib_neigh *neigh;
-	struct ipoib_cb *cb = ipoib_skb_cb(skb);
+	struct ipoib_pseudo_header *phdr;
 	struct ipoib_header *header;
 	unsigned long flags;
 
+	phdr = (struct ipoib_pseudo_header *) skb->data;
+	skb_pull(skb, sizeof(*phdr));
 	header = (struct ipoib_header *) skb->data;
 
-	if (unlikely(cb->hwaddr[4] == 0xff)) {
+	if (unlikely(phdr->hwaddr[4] == 0xff)) {
 		/* multicast, arrange "if" according to probability */
 		if ((header->proto != htons(ETH_P_IP)) &&
 		    (header->proto != htons(ETH_P_IPV6)) &&
@@ -970,13 +1011,13 @@ static int ipoib_start_xmit(struct sk_bu
 			return NETDEV_TX_OK;
 		}
 		/* Add in the P_Key for multicast*/
-		cb->hwaddr[8] = (priv->pkey >> 8) & 0xff;
-		cb->hwaddr[9] = priv->pkey & 0xff;
+		phdr->hwaddr[8] = (priv->pkey >> 8) & 0xff;
+		phdr->hwaddr[9] = priv->pkey & 0xff;
 
-		neigh = ipoib_neigh_get(dev, cb->hwaddr);
+		neigh = ipoib_neigh_get(dev, phdr->hwaddr);
 		if (likely(neigh))
 			goto send_using_neigh;
-		ipoib_mcast_send(dev, cb->hwaddr, skb);
+		ipoib_mcast_send(dev, phdr->hwaddr, skb);
 		return NETDEV_TX_OK;
 	}
 
@@ -985,16 +1026,16 @@ static int ipoib_start_xmit(struct sk_bu
 	case htons(ETH_P_IP):
 	case htons(ETH_P_IPV6):
 	case htons(ETH_P_TIPC):
-		neigh = ipoib_neigh_get(dev, cb->hwaddr);
+		neigh = ipoib_neigh_get(dev, phdr->hwaddr);
 		if (unlikely(!neigh)) {
-			neigh_add_path(skb, cb->hwaddr, dev);
+			neigh_add_path(skb, phdr->hwaddr, dev);
 			return NETDEV_TX_OK;
 		}
 		break;
 	case htons(ETH_P_ARP):
 	case htons(ETH_P_RARP):
 		/* for unicast ARP and RARP should always perform path find */
-		unicast_arp_send(skb, dev, cb);
+		unicast_arp_send(skb, dev, phdr);
 		return NETDEV_TX_OK;
 	default:
 		/* ethertype not supported by IPoIB */
@@ -1011,11 +1052,12 @@ send_using_neigh:
 			goto unref;
 		}
 	} else if (neigh->ah) {
-		ipoib_send(dev, skb, neigh->ah, IPOIB_QPN(cb->hwaddr));
+		ipoib_send(dev, skb, neigh->ah, IPOIB_QPN(phdr->hwaddr));
 		goto unref;
 	}
 
 	if (skb_queue_len(&neigh->queue) < IPOIB_MAX_PATH_REC_QUEUE) {
+		push_pseudo_header(skb, phdr->hwaddr);
 		spin_lock_irqsave(&priv->lock, flags);
 		__skb_queue_tail(&neigh->queue, skb);
 		spin_unlock_irqrestore(&priv->lock, flags);
@@ -1048,7 +1090,6 @@ static int ipoib_hard_header(struct sk_b
 			     const void *daddr, const void *saddr, unsigned len)
 {
 	struct ipoib_header *header;
-	struct ipoib_cb *cb = ipoib_skb_cb(skb);
 
 	header = (struct ipoib_header *) skb_push(skb, sizeof *header);
 
@@ -1057,12 +1098,12 @@ static int ipoib_hard_header(struct sk_b
 
 	/*
 	 * we don't rely on dst_entry structure,  always stuff the
-	 * destination address into skb->cb so we can figure out where
+	 * destination address into skb hard header so we can figure out where
 	 * to send the packet later.
 	 */
-	memcpy(cb->hwaddr, daddr, INFINIBAND_ALEN);
+	push_pseudo_header(skb, daddr);
 
-	return sizeof *header;
+	return IPOIB_HARD_LEN;
 }
 
 static void ipoib_set_mcast_list(struct net_device *dev)
@@ -1131,7 +1172,9 @@ struct ipoib_neigh *ipoib_neigh_get(stru
 				neigh = NULL;
 				goto out_unlock;
 			}
-			neigh->alive = jiffies;
+
+			if (likely(skb_queue_len(&neigh->queue) < IPOIB_MAX_PATH_REC_QUEUE))
+				neigh->alive = jiffies;
 			goto out_unlock;
 		}
 	}
@@ -1196,7 +1239,7 @@ static void __ipoib_reap_neigh(struct ip
 						   rcu_dereference_protected(neigh->hnext,
 									     lockdep_is_held(&priv->lock)));
 				/* remove from path/mc list */
-				list_del(&neigh->list);
+				list_del_init(&neigh->list);
 				call_rcu(&neigh->rcu, ipoib_neigh_reclaim);
 			} else {
 				np = &neigh->hnext;
@@ -1363,7 +1406,7 @@ void ipoib_neigh_free(struct ipoib_neigh
 					   rcu_dereference_protected(neigh->hnext,
 								     lockdep_is_held(&priv->lock)));
 			/* remove from parent list */
-			list_del(&neigh->list);
+			list_del_init(&neigh->list);
 			call_rcu(&neigh->rcu, ipoib_neigh_reclaim);
 			return;
 		} else {
@@ -1448,7 +1491,7 @@ void ipoib_del_neighs_by_gid(struct net_
 						   rcu_dereference_protected(neigh->hnext,
 									     lockdep_is_held(&priv->lock)));
 				/* remove from parent list */
-				list_del(&neigh->list);
+				list_del_init(&neigh->list);
 				call_rcu(&neigh->rcu, ipoib_neigh_reclaim);
 			} else {
 				np = &neigh->hnext;
@@ -1490,7 +1533,7 @@ static void ipoib_flush_neighs(struct ip
 					   rcu_dereference_protected(neigh->hnext,
 								     lockdep_is_held(&priv->lock)));
 			/* remove from path/mc list */
-			list_del(&neigh->list);
+			list_del_init(&neigh->list);
 			call_rcu(&neigh->rcu, ipoib_neigh_reclaim);
 		}
 	}
@@ -1579,8 +1622,6 @@ void ipoib_dev_cleanup(struct net_device
 
 	ASSERT_RTNL();
 
-	ipoib_delete_debug_files(dev);
-
 	/* Delete any child interfaces first */
 	list_for_each_entry_safe(cpriv, tcpriv, &priv->child_intfs, list) {
 		/* Stop GC on child */
@@ -1636,7 +1677,7 @@ void ipoib_setup(struct net_device *dev)
 
 	dev->flags		|= IFF_BROADCAST | IFF_MULTICAST;
 
-	dev->hard_header_len	 = IPOIB_ENCAP_LEN;
+	dev->hard_header_len	 = IPOIB_HARD_LEN;
 	dev->addr_len		 = INFINIBAND_ALEN;
 	dev->type		 = ARPHRD_INFINIBAND;
 	dev->tx_queue_len	 = ipoib_sendq_size * 2;
@@ -1892,8 +1933,6 @@ static struct net_device *ipoib_add_port
 		goto register_failed;
 	}
 
-	ipoib_create_debug_files(priv->dev);
-
 	if (ipoib_cm_add_mode_attr(priv->dev))
 		goto sysfs_failed;
 	if (ipoib_add_pkey_attr(priv->dev))
@@ -1908,7 +1947,6 @@ static struct net_device *ipoib_add_port
 	return priv->dev;
 
 sysfs_failed:
-	ipoib_delete_debug_files(priv->dev);
 	unregister_netdev(priv->dev);
 
 register_failed:
@@ -1990,6 +2028,12 @@ static void ipoib_remove_one(struct ib_d
 	kfree(dev_list);
 }
 
+#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
+static struct notifier_block ipoib_netdev_notifier = {
+	.notifier_call = ipoib_netdev_event,
+};
+#endif
+
 static int __init ipoib_init_module(void)
 {
 	int ret;
@@ -2041,6 +2085,9 @@ static int __init ipoib_init_module(void
 	if (ret)
 		goto err_client;
 
+#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
+	register_netdevice_notifier(&ipoib_netdev_notifier);
+#endif
 	return 0;
 
 err_client:
@@ -2058,6 +2105,9 @@ err_fs:
 
 static void __exit ipoib_cleanup_module(void)
 {
+#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
+	unregister_netdevice_notifier(&ipoib_netdev_notifier);
+#endif
 	ipoib_netlink_fini();
 	ib_unregister_client(&ipoib_client);
 	ib_sa_unregister_client(&ipoib_sa_client);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/infiniband/ulp/ipoib/ipoib_multicast.c linux-libre-4.4.107-gnu/drivers/infiniband/ulp/ipoib/ipoib_multicast.c
--- linux-libre-4.4-gnu/drivers/infiniband/ulp/ipoib/ipoib_multicast.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/infiniband/ulp/ipoib/ipoib_multicast.c	2017-12-20 04:05:01.000000000 -0500
@@ -456,7 +456,10 @@ out_locked:
 	return status;
 }
 
-static void ipoib_mcast_join(struct net_device *dev, struct ipoib_mcast *mcast)
+/*
+ * Caller must hold 'priv->lock'
+ */
+static int ipoib_mcast_join(struct net_device *dev, struct ipoib_mcast *mcast)
 {
 	struct ipoib_dev_priv *priv = netdev_priv(dev);
 	struct ib_sa_multicast *multicast;
@@ -466,6 +469,10 @@ static void ipoib_mcast_join(struct net_
 	ib_sa_comp_mask comp_mask;
 	int ret = 0;
 
+	if (!priv->broadcast ||
+	    !test_bit(IPOIB_FLAG_OPER_UP, &priv->flags))
+		return -EINVAL;
+
 	ipoib_dbg_mcast(priv, "joining MGID %pI6\n", mcast->mcmember.mgid.raw);
 
 	rec.mgid     = mcast->mcmember.mgid;
@@ -525,20 +532,23 @@ static void ipoib_mcast_join(struct net_
 			rec.join_state = 4;
 #endif
 	}
+	spin_unlock_irq(&priv->lock);
 
 	multicast = ib_sa_join_multicast(&ipoib_sa_client, priv->ca, priv->port,
 					 &rec, comp_mask, GFP_KERNEL,
 					 ipoib_mcast_join_complete, mcast);
+	spin_lock_irq(&priv->lock);
 	if (IS_ERR(multicast)) {
 		ret = PTR_ERR(multicast);
 		ipoib_warn(priv, "ib_sa_join_multicast failed, status %d\n", ret);
-		spin_lock_irq(&priv->lock);
 		/* Requeue this join task with a backoff delay */
 		__ipoib_mcast_schedule_join_thread(priv, mcast, 1);
 		clear_bit(IPOIB_MCAST_FLAG_BUSY, &mcast->flags);
 		spin_unlock_irq(&priv->lock);
 		complete(&mcast->done);
+		spin_lock_irq(&priv->lock);
 	}
+	return 0;
 }
 
 void ipoib_mcast_join_task(struct work_struct *work)
@@ -553,8 +563,11 @@ void ipoib_mcast_join_task(struct work_s
 	if (!test_bit(IPOIB_FLAG_OPER_UP, &priv->flags))
 		return;
 
-	if (ib_query_port(priv->ca, priv->port, &port_attr) ||
-	    port_attr.state != IB_PORT_ACTIVE) {
+	if (ib_query_port(priv->ca, priv->port, &port_attr)) {
+		ipoib_dbg(priv, "ib_query_port() failed\n");
+		return;
+	}
+	if (port_attr.state != IB_PORT_ACTIVE) {
 		ipoib_dbg(priv, "port state is not ACTIVE (state = %d) suspending join task\n",
 			  port_attr.state);
 		return;
@@ -620,9 +633,10 @@ void ipoib_mcast_join_task(struct work_s
 				/* Found the next unjoined group */
 				init_completion(&mcast->done);
 				set_bit(IPOIB_MCAST_FLAG_BUSY, &mcast->flags);
-				spin_unlock_irq(&priv->lock);
-				ipoib_mcast_join(dev, mcast);
-				spin_lock_irq(&priv->lock);
+				if (ipoib_mcast_join(dev, mcast)) {
+					spin_unlock_irq(&priv->lock);
+					return;
+				}
 			} else if (!delay_until ||
 				 time_before(mcast->delay_until, delay_until))
 				delay_until = mcast->delay_until;
@@ -641,10 +655,9 @@ out:
 	if (mcast) {
 		init_completion(&mcast->done);
 		set_bit(IPOIB_MCAST_FLAG_BUSY, &mcast->flags);
+		ipoib_mcast_join(dev, mcast);
 	}
 	spin_unlock_irq(&priv->lock);
-	if (mcast)
-		ipoib_mcast_join(dev, mcast);
 }
 
 int ipoib_mcast_start_thread(struct net_device *dev)
@@ -743,9 +756,11 @@ void ipoib_mcast_send(struct net_device
 			__ipoib_mcast_add(dev, mcast);
 			list_add_tail(&mcast->list, &priv->multicast_list);
 		}
-		if (skb_queue_len(&mcast->pkt_queue) < IPOIB_MAX_MCAST_QUEUE)
+		if (skb_queue_len(&mcast->pkt_queue) < IPOIB_MAX_MCAST_QUEUE) {
+			/* put pseudoheader back on for next time */
+			skb_push(skb, sizeof(struct ipoib_pseudo_header));
 			skb_queue_tail(&mcast->pkt_queue, skb);
-		else {
+		} else {
 			++dev->stats.tx_dropped;
 			dev_kfree_skb_any(skb);
 		}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/infiniband/ulp/ipoib/ipoib_vlan.c linux-libre-4.4.107-gnu/drivers/infiniband/ulp/ipoib/ipoib_vlan.c
--- linux-libre-4.4-gnu/drivers/infiniband/ulp/ipoib/ipoib_vlan.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/infiniband/ulp/ipoib/ipoib_vlan.c	2017-12-20 04:05:01.000000000 -0500
@@ -85,8 +85,6 @@ int __ipoib_vlan_add(struct ipoib_dev_pr
 		goto register_failed;
 	}
 
-	ipoib_create_debug_files(priv->dev);
-
 	/* RTNL childs don't need proprietary sysfs entries */
 	if (type == IPOIB_LEGACY_CHILD) {
 		if (ipoib_cm_add_mode_attr(priv->dev))
@@ -107,7 +105,6 @@ int __ipoib_vlan_add(struct ipoib_dev_pr
 
 sysfs_failed:
 	result = -ENOMEM;
-	ipoib_delete_debug_files(priv->dev);
 	unregister_netdevice(priv->dev);
 
 register_failed:
@@ -163,11 +160,11 @@ int ipoib_vlan_add(struct net_device *pd
 out:
 	up_write(&ppriv->vlan_rwsem);
 
+	rtnl_unlock();
+
 	if (result)
 		free_netdev(priv->dev);
 
-	rtnl_unlock();
-
 	return result;
 }
 
@@ -188,7 +185,6 @@ int ipoib_vlan_delete(struct net_device
 	list_for_each_entry_safe(priv, tpriv, &ppriv->child_intfs, list) {
 		if (priv->pkey == pkey &&
 		    priv->child_type == IPOIB_LEGACY_CHILD) {
-			unregister_netdevice(priv->dev);
 			list_del(&priv->list);
 			dev = priv->dev;
 			break;
@@ -196,6 +192,11 @@ int ipoib_vlan_delete(struct net_device
 	}
 	up_write(&ppriv->vlan_rwsem);
 
+	if (dev) {
+		ipoib_dbg(ppriv, "delete child vlan %s\n", dev->name);
+		unregister_netdevice(dev);
+	}
+
 	rtnl_unlock();
 
 	if (dev) {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/infiniband/ulp/isert/ib_isert.c linux-libre-4.4.107-gnu/drivers/infiniband/ulp/isert/ib_isert.c
--- linux-libre-4.4-gnu/drivers/infiniband/ulp/isert/ib_isert.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/infiniband/ulp/isert/ib_isert.c	2017-12-20 04:05:01.000000000 -0500
@@ -66,6 +66,7 @@ isert_rdma_accept(struct isert_conn *ise
 struct rdma_cm_id *isert_setup_id(struct isert_np *isert_np);
 
 static void isert_release_work(struct work_struct *work);
+static void isert_wait4flush(struct isert_conn *isert_conn);
 
 static inline bool
 isert_prot_cmd(struct isert_conn *conn, struct se_cmd *cmd)
@@ -815,12 +816,31 @@ isert_put_conn(struct isert_conn *isert_
 	kref_put(&isert_conn->kref, isert_release_kref);
 }
 
+static void
+isert_handle_unbound_conn(struct isert_conn *isert_conn)
+{
+	struct isert_np *isert_np = isert_conn->cm_id->context;
+
+	mutex_lock(&isert_np->mutex);
+	if (!list_empty(&isert_conn->node)) {
+		/*
+		 * This means iscsi doesn't know this connection
+		 * so schedule a cleanup ourselves
+		 */
+		list_del_init(&isert_conn->node);
+		isert_put_conn(isert_conn);
+		complete(&isert_conn->wait);
+		queue_work(isert_release_wq, &isert_conn->release_work);
+	}
+	mutex_unlock(&isert_np->mutex);
+}
+
 /**
  * isert_conn_terminate() - Initiate connection termination
  * @isert_conn: isert connection struct
  *
  * Notes:
- * In case the connection state is FULL_FEATURE, move state
+ * In case the connection state is BOUND, move state
  * to TEMINATING and start teardown sequence (rdma_disconnect).
  * In case the connection state is UP, complete flush as well.
  *
@@ -832,23 +852,19 @@ isert_conn_terminate(struct isert_conn *
 {
 	int err;
 
-	switch (isert_conn->state) {
-	case ISER_CONN_TERMINATING:
-		break;
-	case ISER_CONN_UP:
-	case ISER_CONN_FULL_FEATURE: /* FALLTHRU */
-		isert_info("Terminating conn %p state %d\n",
-			   isert_conn, isert_conn->state);
-		isert_conn->state = ISER_CONN_TERMINATING;
-		err = rdma_disconnect(isert_conn->cm_id);
-		if (err)
-			isert_warn("Failed rdma_disconnect isert_conn %p\n",
-				   isert_conn);
-		break;
-	default:
-		isert_warn("conn %p teminating in state %d\n",
-			   isert_conn, isert_conn->state);
-	}
+	if (isert_conn->state >= ISER_CONN_TERMINATING)
+		return;
+
+	isert_info("Terminating conn %p state %d\n",
+		   isert_conn, isert_conn->state);
+	isert_conn->state = ISER_CONN_TERMINATING;
+	err = rdma_disconnect(isert_conn->cm_id);
+	if (err)
+		isert_warn("Failed rdma_disconnect isert_conn %p\n",
+			   isert_conn);
+
+	isert_info("conn %p completing wait\n", isert_conn);
+	complete(&isert_conn->wait);
 }
 
 static int
@@ -882,35 +898,27 @@ static int
 isert_disconnected_handler(struct rdma_cm_id *cma_id,
 			   enum rdma_cm_event_type event)
 {
-	struct isert_np *isert_np = cma_id->context;
-	struct isert_conn *isert_conn;
-	bool terminating = false;
-
-	if (isert_np->cm_id == cma_id)
-		return isert_np_cma_handler(cma_id->context, event);
-
-	isert_conn = cma_id->qp->qp_context;
+	struct isert_conn *isert_conn = cma_id->qp->qp_context;
 
 	mutex_lock(&isert_conn->mutex);
-	terminating = (isert_conn->state == ISER_CONN_TERMINATING);
-	isert_conn_terminate(isert_conn);
-	mutex_unlock(&isert_conn->mutex);
-
-	isert_info("conn %p completing wait\n", isert_conn);
-	complete(&isert_conn->wait);
-
-	if (terminating)
-		goto out;
-
-	mutex_lock(&isert_np->mutex);
-	if (!list_empty(&isert_conn->node)) {
-		list_del_init(&isert_conn->node);
-		isert_put_conn(isert_conn);
-		queue_work(isert_release_wq, &isert_conn->release_work);
+	switch (isert_conn->state) {
+	case ISER_CONN_TERMINATING:
+		break;
+	case ISER_CONN_UP:
+		isert_conn_terminate(isert_conn);
+		isert_wait4flush(isert_conn);
+		isert_handle_unbound_conn(isert_conn);
+		break;
+	case ISER_CONN_BOUND:
+	case ISER_CONN_FULL_FEATURE: /* FALLTHRU */
+		iscsit_cause_connection_reinstatement(isert_conn->conn, 0);
+		break;
+	default:
+		isert_warn("conn %p teminating in state %d\n",
+			   isert_conn, isert_conn->state);
 	}
-	mutex_unlock(&isert_np->mutex);
+	mutex_unlock(&isert_conn->mutex);
 
-out:
 	return 0;
 }
 
@@ -929,12 +937,16 @@ isert_connect_error(struct rdma_cm_id *c
 static int
 isert_cma_handler(struct rdma_cm_id *cma_id, struct rdma_cm_event *event)
 {
+	struct isert_np *isert_np = cma_id->context;
 	int ret = 0;
 
 	isert_info("%s (%d): status %d id %p np %p\n",
 		   rdma_event_msg(event->event), event->event,
 		   event->status, cma_id, cma_id->context);
 
+	if (isert_np->cm_id == cma_id)
+		return isert_np_cma_handler(cma_id->context, event->event);
+
 	switch (event->event) {
 	case RDMA_CM_EVENT_CONNECT_REQUEST:
 		ret = isert_connect_request(cma_id, event);
@@ -980,13 +992,10 @@ isert_post_recvm(struct isert_conn *iser
 	rx_wr--;
 	rx_wr->next = NULL; /* mark end of work requests list */
 
-	isert_conn->post_recv_buf_count += count;
 	ret = ib_post_recv(isert_conn->qp, isert_conn->rx_wr,
 			   &rx_wr_failed);
-	if (ret) {
+	if (ret)
 		isert_err("ib_post_recv() failed with ret: %d\n", ret);
-		isert_conn->post_recv_buf_count -= count;
-	}
 
 	return ret;
 }
@@ -1002,12 +1011,9 @@ isert_post_recv(struct isert_conn *isert
 	rx_wr.num_sge = 1;
 	rx_wr.next = NULL;
 
-	isert_conn->post_recv_buf_count++;
 	ret = ib_post_recv(isert_conn->qp, &rx_wr, &rx_wr_failed);
-	if (ret) {
+	if (ret)
 		isert_err("ib_post_recv() failed with ret: %d\n", ret);
-		isert_conn->post_recv_buf_count--;
-	}
 
 	return ret;
 }
@@ -1120,12 +1126,9 @@ isert_rdma_post_recvl(struct isert_conn
 	rx_wr.sg_list = &sge;
 	rx_wr.num_sge = 1;
 
-	isert_conn->post_recv_buf_count++;
 	ret = ib_post_recv(isert_conn->qp, &rx_wr, &rx_wr_fail);
-	if (ret) {
+	if (ret)
 		isert_err("ib_post_recv() failed: %d\n", ret);
-		isert_conn->post_recv_buf_count--;
-	}
 
 	return ret;
 }
@@ -1578,7 +1581,7 @@ isert_rcv_completion(struct iser_rx_desc
 		     struct isert_conn *isert_conn,
 		     u32 xfer_len)
 {
-	struct ib_device *ib_dev = isert_conn->cm_id->device;
+	struct ib_device *ib_dev = isert_conn->device->ib_device;
 	struct iscsi_hdr *hdr;
 	u64 rx_dma;
 	int rx_buflen;
@@ -1620,7 +1623,6 @@ isert_rcv_completion(struct iser_rx_desc
 	ib_dma_sync_single_for_device(ib_dev, rx_dma, rx_buflen,
 				      DMA_FROM_DEVICE);
 
-	isert_conn->post_recv_buf_count--;
 }
 
 static int
@@ -2035,7 +2037,8 @@ is_isert_tx_desc(struct isert_conn *iser
 	void *start = isert_conn->rx_descs;
 	int len = ISERT_QP_MAX_RECV_DTOS * sizeof(*isert_conn->rx_descs);
 
-	if (wr_id >= start && wr_id < start + len)
+	if ((wr_id >= start && wr_id < start + len) ||
+	    (wr_id == isert_conn->login_req_buf))
 		return false;
 
 	return true;
@@ -2059,10 +2062,6 @@ isert_cq_comp_err(struct isert_conn *ise
 			isert_unmap_tx_desc(desc, ib_dev);
 		else
 			isert_completion_put(desc, isert_cmd, ib_dev, true);
-	} else {
-		isert_conn->post_recv_buf_count--;
-		if (!isert_conn->post_recv_buf_count)
-			iscsit_cause_connection_reinstatement(isert_conn->conn, 0);
 	}
 }
 
@@ -3193,6 +3192,7 @@ accept_wait:
 
 	conn->context = isert_conn;
 	isert_conn->conn = conn;
+	isert_conn->state = ISER_CONN_BOUND;
 
 	isert_set_conn_info(np, conn, isert_conn);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/infiniband/ulp/isert/ib_isert.h linux-libre-4.4.107-gnu/drivers/infiniband/ulp/isert/ib_isert.h
--- linux-libre-4.4-gnu/drivers/infiniband/ulp/isert/ib_isert.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/infiniband/ulp/isert/ib_isert.h	2017-12-20 04:05:01.000000000 -0500
@@ -50,6 +50,7 @@ enum iser_ib_op_code {
 enum iser_conn_state {
 	ISER_CONN_INIT,
 	ISER_CONN_UP,
+	ISER_CONN_BOUND,
 	ISER_CONN_FULL_FEATURE,
 	ISER_CONN_TERMINATING,
 	ISER_CONN_DOWN,
@@ -144,7 +145,6 @@ struct isert_device;
 
 struct isert_conn {
 	enum iser_conn_state	state;
-	int			post_recv_buf_count;
 	u32			responder_resources;
 	u32			initiator_depth;
 	bool			pi_support;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/infiniband/ulp/srp/ib_srp.c linux-libre-4.4.107-gnu/drivers/infiniband/ulp/srp/ib_srp.c
--- linux-libre-4.4-gnu/drivers/infiniband/ulp/srp/ib_srp.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/infiniband/ulp/srp/ib_srp.c	2017-12-20 04:05:01.000000000 -0500
@@ -670,12 +670,19 @@ static void srp_path_rec_completion(int
 static int srp_lookup_path(struct srp_rdma_ch *ch)
 {
 	struct srp_target_port *target = ch->target;
-	int ret;
+	int ret = -ENODEV;
 
 	ch->path.numb_path = 1;
 
 	init_completion(&ch->done);
 
+	/*
+	 * Avoid that the SCSI host can be removed by srp_remove_target()
+	 * before srp_path_rec_completion() is called.
+	 */
+	if (!scsi_host_get(target->scsi_host))
+		goto out;
+
 	ch->path_query_id = ib_sa_path_rec_get(&srp_sa_client,
 					       target->srp_host->srp_dev->dev,
 					       target->srp_host->port,
@@ -689,18 +696,24 @@ static int srp_lookup_path(struct srp_rd
 					       GFP_KERNEL,
 					       srp_path_rec_completion,
 					       ch, &ch->path_query);
-	if (ch->path_query_id < 0)
-		return ch->path_query_id;
+	ret = ch->path_query_id;
+	if (ret < 0)
+		goto put;
 
 	ret = wait_for_completion_interruptible(&ch->done);
 	if (ret < 0)
-		return ret;
+		goto put;
 
-	if (ch->status < 0)
+	ret = ch->status;
+	if (ret < 0)
 		shost_printk(KERN_WARNING, target->scsi_host,
 			     PFX "Path record query failed\n");
 
-	return ch->status;
+put:
+	scsi_host_put(target->scsi_host);
+
+out:
+	return ret;
 }
 
 static int srp_send_req(struct srp_rdma_ch *ch, bool multich)
@@ -1519,7 +1532,7 @@ static int srp_map_idb(struct srp_rdma_c
 
 	if (dev->use_fast_reg) {
 		state.sg = idb_sg;
-		sg_set_buf(idb_sg, req->indirect_desc, idb_len);
+		sg_init_one(idb_sg, req->indirect_desc, idb_len);
 		idb_sg->dma_address = req->indirect_dma_addr; /* hack! */
 #ifdef CONFIG_NEED_SG_DMA_LENGTH
 		idb_sg->dma_length = idb_sg->length;	      /* hack^2 */
@@ -1787,17 +1800,24 @@ static void srp_process_rsp(struct srp_r
 	if (unlikely(rsp->tag & SRP_TAG_TSK_MGMT)) {
 		spin_lock_irqsave(&ch->lock, flags);
 		ch->req_lim += be32_to_cpu(rsp->req_lim_delta);
+		if (rsp->tag == ch->tsk_mgmt_tag) {
+			ch->tsk_mgmt_status = -1;
+			if (be32_to_cpu(rsp->resp_data_len) >= 4)
+				ch->tsk_mgmt_status = rsp->data[3];
+			complete(&ch->tsk_mgmt_done);
+		} else {
+			shost_printk(KERN_ERR, target->scsi_host,
+				     "Received tsk mgmt response too late for tag %#llx\n",
+				     rsp->tag);
+		}
 		spin_unlock_irqrestore(&ch->lock, flags);
-
-		ch->tsk_mgmt_status = -1;
-		if (be32_to_cpu(rsp->resp_data_len) >= 4)
-			ch->tsk_mgmt_status = rsp->data[3];
-		complete(&ch->tsk_mgmt_done);
 	} else {
 		scmnd = scsi_host_find_tag(target->scsi_host, rsp->tag);
-		if (scmnd) {
+		if (scmnd && scmnd->host_scribble) {
 			req = (void *)scmnd->host_scribble;
 			scmnd = srp_claim_req(ch, req, NULL, scmnd);
+		} else {
+			scmnd = NULL;
 		}
 		if (!scmnd) {
 			shost_printk(KERN_ERR, target->scsi_host,
@@ -2469,19 +2489,18 @@ srp_change_queue_depth(struct scsi_devic
 }
 
 static int srp_send_tsk_mgmt(struct srp_rdma_ch *ch, u64 req_tag, u64 lun,
-			     u8 func)
+			     u8 func, u8 *status)
 {
 	struct srp_target_port *target = ch->target;
 	struct srp_rport *rport = target->rport;
 	struct ib_device *dev = target->srp_host->srp_dev->dev;
 	struct srp_iu *iu;
 	struct srp_tsk_mgmt *tsk_mgmt;
+	int res;
 
 	if (!ch->connected || target->qp_in_error)
 		return -1;
 
-	init_completion(&ch->tsk_mgmt_done);
-
 	/*
 	 * Lock the rport mutex to avoid that srp_create_ch_ib() is
 	 * invoked while a task management function is being sent.
@@ -2504,10 +2523,16 @@ static int srp_send_tsk_mgmt(struct srp_
 
 	tsk_mgmt->opcode 	= SRP_TSK_MGMT;
 	int_to_scsilun(lun, &tsk_mgmt->lun);
-	tsk_mgmt->tag		= req_tag | SRP_TAG_TSK_MGMT;
 	tsk_mgmt->tsk_mgmt_func = func;
 	tsk_mgmt->task_tag	= req_tag;
 
+	spin_lock_irq(&ch->lock);
+	ch->tsk_mgmt_tag = (ch->tsk_mgmt_tag + 1) | SRP_TAG_TSK_MGMT;
+	tsk_mgmt->tag = ch->tsk_mgmt_tag;
+	spin_unlock_irq(&ch->lock);
+
+	init_completion(&ch->tsk_mgmt_done);
+
 	ib_dma_sync_single_for_device(dev, iu->dma, sizeof *tsk_mgmt,
 				      DMA_TO_DEVICE);
 	if (srp_post_send(ch, iu, sizeof(*tsk_mgmt))) {
@@ -2516,13 +2541,15 @@ static int srp_send_tsk_mgmt(struct srp_
 
 		return -1;
 	}
+	res = wait_for_completion_timeout(&ch->tsk_mgmt_done,
+					msecs_to_jiffies(SRP_ABORT_TIMEOUT_MS));
+	if (res > 0 && status)
+		*status = ch->tsk_mgmt_status;
 	mutex_unlock(&rport->mutex);
 
-	if (!wait_for_completion_timeout(&ch->tsk_mgmt_done,
-					 msecs_to_jiffies(SRP_ABORT_TIMEOUT_MS)))
-		return -1;
+	WARN_ON_ONCE(res < 0);
 
-	return 0;
+	return res > 0 ? 0 : -1;
 }
 
 static int srp_abort(struct scsi_cmnd *scmnd)
@@ -2548,7 +2575,7 @@ static int srp_abort(struct scsi_cmnd *s
 	shost_printk(KERN_ERR, target->scsi_host,
 		     "Sending SRP abort for tag %#x\n", tag);
 	if (srp_send_tsk_mgmt(ch, tag, scmnd->device->lun,
-			      SRP_TSK_ABORT_TASK) == 0)
+			      SRP_TSK_ABORT_TASK, NULL) == 0)
 		ret = SUCCESS;
 	else if (target->rport->state == SRP_RPORT_LOST)
 		ret = FAST_IO_FAIL;
@@ -2566,14 +2593,15 @@ static int srp_reset_device(struct scsi_
 	struct srp_target_port *target = host_to_target(scmnd->device->host);
 	struct srp_rdma_ch *ch;
 	int i;
+	u8 status;
 
 	shost_printk(KERN_ERR, target->scsi_host, "SRP reset_device called\n");
 
 	ch = &target->ch[0];
 	if (srp_send_tsk_mgmt(ch, SRP_TAG_NO_REQ, scmnd->device->lun,
-			      SRP_TSK_LUN_RESET))
+			      SRP_TSK_LUN_RESET, &status))
 		return FAILED;
-	if (ch->tsk_mgmt_status)
+	if (status)
 		return FAILED;
 
 	for (i = 0; i < target->ch_count; i++) {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/infiniband/ulp/srp/ib_srp.h linux-libre-4.4.107-gnu/drivers/infiniband/ulp/srp/ib_srp.h
--- linux-libre-4.4-gnu/drivers/infiniband/ulp/srp/ib_srp.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/infiniband/ulp/srp/ib_srp.h	2017-12-20 04:05:01.000000000 -0500
@@ -168,6 +168,7 @@ struct srp_rdma_ch {
 	int			max_ti_iu_len;
 	int			comp_vector;
 
+	u64			tsk_mgmt_tag;
 	struct completion	tsk_mgmt_done;
 	u8			tsk_mgmt_status;
 	bool			connected;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/infiniband/ulp/srpt/ib_srpt.c linux-libre-4.4.107-gnu/drivers/infiniband/ulp/srpt/ib_srpt.c
--- linux-libre-4.4-gnu/drivers/infiniband/ulp/srpt/ib_srpt.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/infiniband/ulp/srpt/ib_srpt.c	2017-12-20 04:05:01.000000000 -0500
@@ -1737,47 +1737,6 @@ send_sense:
 	return -1;
 }
 
-/**
- * srpt_rx_mgmt_fn_tag() - Process a task management function by tag.
- * @ch: RDMA channel of the task management request.
- * @fn: Task management function to perform.
- * @req_tag: Tag of the SRP task management request.
- * @mgmt_ioctx: I/O context of the task management request.
- *
- * Returns zero if the target core will process the task management
- * request asynchronously.
- *
- * Note: It is assumed that the initiator serializes tag-based task management
- * requests.
- */
-static int srpt_rx_mgmt_fn_tag(struct srpt_send_ioctx *ioctx, u64 tag)
-{
-	struct srpt_device *sdev;
-	struct srpt_rdma_ch *ch;
-	struct srpt_send_ioctx *target;
-	int ret, i;
-
-	ret = -EINVAL;
-	ch = ioctx->ch;
-	BUG_ON(!ch);
-	BUG_ON(!ch->sport);
-	sdev = ch->sport->sdev;
-	BUG_ON(!sdev);
-	spin_lock_irq(&sdev->spinlock);
-	for (i = 0; i < ch->rq_size; ++i) {
-		target = ch->ioctx_ring[i];
-		if (target->cmd.se_lun == ioctx->cmd.se_lun &&
-		    target->cmd.tag == tag &&
-		    srpt_get_cmd_state(target) != SRPT_STATE_DONE) {
-			ret = 0;
-			/* now let the target core abort &target->cmd; */
-			break;
-		}
-	}
-	spin_unlock_irq(&sdev->spinlock);
-	return ret;
-}
-
 static int srp_tmr_to_tcm(int fn)
 {
 	switch (fn) {
@@ -1812,7 +1771,6 @@ static void srpt_handle_tsk_mgmt(struct
 	struct se_cmd *cmd;
 	struct se_session *sess = ch->sess;
 	uint64_t unpacked_lun;
-	uint32_t tag = 0;
 	int tcm_tmr;
 	int rc;
 
@@ -1828,25 +1786,10 @@ static void srpt_handle_tsk_mgmt(struct
 	srpt_set_cmd_state(send_ioctx, SRPT_STATE_MGMT);
 	send_ioctx->cmd.tag = srp_tsk->tag;
 	tcm_tmr = srp_tmr_to_tcm(srp_tsk->tsk_mgmt_func);
-	if (tcm_tmr < 0) {
-		send_ioctx->cmd.se_tmr_req->response =
-			TMR_TASK_MGMT_FUNCTION_NOT_SUPPORTED;
-		goto fail;
-	}
 	unpacked_lun = srpt_unpack_lun((uint8_t *)&srp_tsk->lun,
 				       sizeof(srp_tsk->lun));
-
-	if (srp_tsk->tsk_mgmt_func == SRP_TSK_ABORT_TASK) {
-		rc = srpt_rx_mgmt_fn_tag(send_ioctx, srp_tsk->task_tag);
-		if (rc < 0) {
-			send_ioctx->cmd.se_tmr_req->response =
-					TMR_TASK_DOES_NOT_EXIST;
-			goto fail;
-		}
-		tag = srp_tsk->task_tag;
-	}
 	rc = target_submit_tmr(&send_ioctx->cmd, sess, NULL, unpacked_lun,
-				srp_tsk, tcm_tmr, GFP_KERNEL, tag,
+				srp_tsk, tcm_tmr, GFP_KERNEL, srp_tsk->task_tag,
 				TARGET_SCF_ACK_KREF);
 	if (rc != 0) {
 		send_ioctx->cmd.se_tmr_req->response = TMR_FUNCTION_REJECTED;
@@ -3482,7 +3425,7 @@ static int srpt_parse_i_port_id(u8 i_por
 {
 	const char *p;
 	unsigned len, count, leading_zero_bytes;
-	int ret, rc;
+	int ret;
 
 	p = name;
 	if (strncasecmp(p, "0x", 2) == 0)
@@ -3494,10 +3437,9 @@ static int srpt_parse_i_port_id(u8 i_por
 	count = min(len / 2, 16U);
 	leading_zero_bytes = 16 - count;
 	memset(i_port_id, 0, leading_zero_bytes);
-	rc = hex2bin(i_port_id + leading_zero_bytes, p, count);
-	if (rc < 0)
-		pr_debug("hex2bin failed for srpt_parse_i_port_id: %d\n", rc);
-	ret = 0;
+	ret = hex2bin(i_port_id + leading_zero_bytes, p, count);
+	if (ret < 0)
+		pr_debug("hex2bin failed for srpt_parse_i_port_id: %d\n", ret);
 out:
 	return ret;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/input/joystick/iforce/iforce-usb.c linux-libre-4.4.107-gnu/drivers/input/joystick/iforce/iforce-usb.c
--- linux-libre-4.4-gnu/drivers/input/joystick/iforce/iforce-usb.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/input/joystick/iforce/iforce-usb.c	2017-12-20 04:05:01.000000000 -0500
@@ -141,6 +141,9 @@ static int iforce_usb_probe(struct usb_i
 
 	interface = intf->cur_altsetting;
 
+	if (interface->desc.bNumEndpoints < 2)
+		return -ENODEV;
+
 	epirq = &interface->endpoint[0].desc;
 	epout = &interface->endpoint[1].desc;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/input/joystick/xpad.c linux-libre-4.4.107-gnu/drivers/input/joystick/xpad.c
--- linux-libre-4.4-gnu/drivers/input/joystick/xpad.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/input/joystick/xpad.c	2017-12-20 04:05:01.000000000 -0500
@@ -189,6 +189,7 @@ static const struct xpad_device {
 	{ 0x1430, 0x8888, "TX6500+ Dance Pad (first generation)", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX },
 	{ 0x146b, 0x0601, "BigBen Interactive XBOX 360 Controller", 0, XTYPE_XBOX360 },
 	{ 0x1532, 0x0037, "Razer Sabertooth", 0, XTYPE_XBOX360 },
+	{ 0x1532, 0x0a03, "Razer Wildcat", 0, XTYPE_XBOXONE },
 	{ 0x15e4, 0x3f00, "Power A Mini Pro Elite", 0, XTYPE_XBOX360 },
 	{ 0x15e4, 0x3f0a, "Xbox Airflo wired controller", 0, XTYPE_XBOX360 },
 	{ 0x15e4, 0x3f10, "Batarang Xbox 360 controller", 0, XTYPE_XBOX360 },
@@ -310,6 +311,7 @@ static struct usb_device_id xpad_table[]
 	XPAD_XBOX360_VENDOR(0x1689),		/* Razer Onza */
 	XPAD_XBOX360_VENDOR(0x24c6),		/* PowerA Controllers */
 	XPAD_XBOX360_VENDOR(0x1532),		/* Razer Sabertooth */
+	XPAD_XBOXONE_VENDOR(0x1532),		/* Razer Wildcat */
 	XPAD_XBOX360_VENDOR(0x15e4),		/* Numark X-Box 360 controllers */
 	XPAD_XBOX360_VENDOR(0x162e),		/* Joytech X-Box 360 controllers */
 	{ }
@@ -317,6 +319,19 @@ static struct usb_device_id xpad_table[]
 
 MODULE_DEVICE_TABLE(usb, xpad_table);
 
+struct xpad_output_packet {
+	u8 data[XPAD_PKT_LEN];
+	u8 len;
+	bool pending;
+};
+
+#define XPAD_OUT_CMD_IDX	0
+#define XPAD_OUT_FF_IDX		1
+#define XPAD_OUT_LED_IDX	(1 + IS_ENABLED(CONFIG_JOYSTICK_XPAD_FF))
+#define XPAD_NUM_OUT_PACKETS	(1 + \
+				 IS_ENABLED(CONFIG_JOYSTICK_XPAD_FF) + \
+				 IS_ENABLED(CONFIG_JOYSTICK_XPAD_LEDS))
+
 struct usb_xpad {
 	struct input_dev *dev;		/* input device interface */
 	struct usb_device *udev;	/* usb device */
@@ -329,9 +344,13 @@ struct usb_xpad {
 	dma_addr_t idata_dma;
 
 	struct urb *irq_out;		/* urb for interrupt out report */
+	bool irq_out_active;		/* we must not use an active URB */
 	unsigned char *odata;		/* output data */
 	dma_addr_t odata_dma;
-	struct mutex odata_mutex;
+	spinlock_t odata_lock;
+
+	struct xpad_output_packet out_packets[XPAD_NUM_OUT_PACKETS];
+	int last_out_packet;
 
 #if defined(CONFIG_JOYSTICK_XPAD_LEDS)
 	struct xpad_led *led;
@@ -678,18 +697,71 @@ exit:
 			__func__, retval);
 }
 
+/* Callers must hold xpad->odata_lock spinlock */
+static bool xpad_prepare_next_out_packet(struct usb_xpad *xpad)
+{
+	struct xpad_output_packet *pkt, *packet = NULL;
+	int i;
+
+	for (i = 0; i < XPAD_NUM_OUT_PACKETS; i++) {
+		if (++xpad->last_out_packet >= XPAD_NUM_OUT_PACKETS)
+			xpad->last_out_packet = 0;
+
+		pkt = &xpad->out_packets[xpad->last_out_packet];
+		if (pkt->pending) {
+			dev_dbg(&xpad->intf->dev,
+				"%s - found pending output packet %d\n",
+				__func__, xpad->last_out_packet);
+			packet = pkt;
+			break;
+		}
+	}
+
+	if (packet) {
+		memcpy(xpad->odata, packet->data, packet->len);
+		xpad->irq_out->transfer_buffer_length = packet->len;
+		packet->pending = false;
+		return true;
+	}
+
+	return false;
+}
+
+/* Callers must hold xpad->odata_lock spinlock */
+static int xpad_try_sending_next_out_packet(struct usb_xpad *xpad)
+{
+	int error;
+
+	if (!xpad->irq_out_active && xpad_prepare_next_out_packet(xpad)) {
+		error = usb_submit_urb(xpad->irq_out, GFP_ATOMIC);
+		if (error) {
+			dev_err(&xpad->intf->dev,
+				"%s - usb_submit_urb failed with result %d\n",
+				__func__, error);
+			return -EIO;
+		}
+
+		xpad->irq_out_active = true;
+	}
+
+	return 0;
+}
+
 static void xpad_irq_out(struct urb *urb)
 {
 	struct usb_xpad *xpad = urb->context;
 	struct device *dev = &xpad->intf->dev;
-	int retval, status;
+	int status = urb->status;
+	int error;
+	unsigned long flags;
 
-	status = urb->status;
+	spin_lock_irqsave(&xpad->odata_lock, flags);
 
 	switch (status) {
 	case 0:
 		/* success */
-		return;
+		xpad->irq_out_active = xpad_prepare_next_out_packet(xpad);
+		break;
 
 	case -ECONNRESET:
 	case -ENOENT:
@@ -697,19 +769,26 @@ static void xpad_irq_out(struct urb *urb
 		/* this urb is terminated, clean up */
 		dev_dbg(dev, "%s - urb shutting down with status: %d\n",
 			__func__, status);
-		return;
+		xpad->irq_out_active = false;
+		break;
 
 	default:
 		dev_dbg(dev, "%s - nonzero urb status received: %d\n",
 			__func__, status);
-		goto exit;
+		break;
 	}
 
-exit:
-	retval = usb_submit_urb(urb, GFP_ATOMIC);
-	if (retval)
-		dev_err(dev, "%s - usb_submit_urb failed with result %d\n",
-			__func__, retval);
+	if (xpad->irq_out_active) {
+		error = usb_submit_urb(urb, GFP_ATOMIC);
+		if (error) {
+			dev_err(dev,
+				"%s - usb_submit_urb failed with result %d\n",
+				__func__, error);
+			xpad->irq_out_active = false;
+		}
+	}
+
+	spin_unlock_irqrestore(&xpad->odata_lock, flags);
 }
 
 static int xpad_init_output(struct usb_interface *intf, struct usb_xpad *xpad)
@@ -728,7 +807,7 @@ static int xpad_init_output(struct usb_i
 		goto fail1;
 	}
 
-	mutex_init(&xpad->odata_mutex);
+	spin_lock_init(&xpad->odata_lock);
 
 	xpad->irq_out = usb_alloc_urb(0, GFP_KERNEL);
 	if (!xpad->irq_out) {
@@ -770,27 +849,57 @@ static void xpad_deinit_output(struct us
 
 static int xpad_inquiry_pad_presence(struct usb_xpad *xpad)
 {
+	struct xpad_output_packet *packet =
+			&xpad->out_packets[XPAD_OUT_CMD_IDX];
+	unsigned long flags;
 	int retval;
 
-	mutex_lock(&xpad->odata_mutex);
+	spin_lock_irqsave(&xpad->odata_lock, flags);
 
-	xpad->odata[0] = 0x08;
-	xpad->odata[1] = 0x00;
-	xpad->odata[2] = 0x0F;
-	xpad->odata[3] = 0xC0;
-	xpad->odata[4] = 0x00;
-	xpad->odata[5] = 0x00;
-	xpad->odata[6] = 0x00;
-	xpad->odata[7] = 0x00;
-	xpad->odata[8] = 0x00;
-	xpad->odata[9] = 0x00;
-	xpad->odata[10] = 0x00;
-	xpad->odata[11] = 0x00;
-	xpad->irq_out->transfer_buffer_length = 12;
+	packet->data[0] = 0x08;
+	packet->data[1] = 0x00;
+	packet->data[2] = 0x0F;
+	packet->data[3] = 0xC0;
+	packet->data[4] = 0x00;
+	packet->data[5] = 0x00;
+	packet->data[6] = 0x00;
+	packet->data[7] = 0x00;
+	packet->data[8] = 0x00;
+	packet->data[9] = 0x00;
+	packet->data[10] = 0x00;
+	packet->data[11] = 0x00;
+	packet->len = 12;
+	packet->pending = true;
 
-	retval = usb_submit_urb(xpad->irq_out, GFP_KERNEL);
+	/* Reset the sequence so we send out presence first */
+	xpad->last_out_packet = -1;
+	retval = xpad_try_sending_next_out_packet(xpad);
 
-	mutex_unlock(&xpad->odata_mutex);
+	spin_unlock_irqrestore(&xpad->odata_lock, flags);
+
+	return retval;
+}
+
+static int xpad_start_xbox_one(struct usb_xpad *xpad)
+{
+	struct xpad_output_packet *packet =
+			&xpad->out_packets[XPAD_OUT_CMD_IDX];
+	unsigned long flags;
+	int retval;
+
+	spin_lock_irqsave(&xpad->odata_lock, flags);
+
+	/* Xbox one controller needs to be initialized. */
+	packet->data[0] = 0x05;
+	packet->data[1] = 0x20;
+	packet->len = 2;
+	packet->pending = true;
+
+	/* Reset the sequence so we send out start packet first */
+	xpad->last_out_packet = -1;
+	retval = xpad_try_sending_next_out_packet(xpad);
+
+	spin_unlock_irqrestore(&xpad->odata_lock, flags);
 
 	return retval;
 }
@@ -799,8 +908,11 @@ static int xpad_inquiry_pad_presence(str
 static int xpad_play_effect(struct input_dev *dev, void *data, struct ff_effect *effect)
 {
 	struct usb_xpad *xpad = input_get_drvdata(dev);
+	struct xpad_output_packet *packet = &xpad->out_packets[XPAD_OUT_FF_IDX];
 	__u16 strong;
 	__u16 weak;
+	int retval;
+	unsigned long flags;
 
 	if (effect->type != FF_RUMBLE)
 		return 0;
@@ -808,69 +920,80 @@ static int xpad_play_effect(struct input
 	strong = effect->u.rumble.strong_magnitude;
 	weak = effect->u.rumble.weak_magnitude;
 
+	spin_lock_irqsave(&xpad->odata_lock, flags);
+
 	switch (xpad->xtype) {
 	case XTYPE_XBOX:
-		xpad->odata[0] = 0x00;
-		xpad->odata[1] = 0x06;
-		xpad->odata[2] = 0x00;
-		xpad->odata[3] = strong / 256;	/* left actuator */
-		xpad->odata[4] = 0x00;
-		xpad->odata[5] = weak / 256;	/* right actuator */
-		xpad->irq_out->transfer_buffer_length = 6;
+		packet->data[0] = 0x00;
+		packet->data[1] = 0x06;
+		packet->data[2] = 0x00;
+		packet->data[3] = strong / 256;	/* left actuator */
+		packet->data[4] = 0x00;
+		packet->data[5] = weak / 256;	/* right actuator */
+		packet->len = 6;
+		packet->pending = true;
 		break;
 
 	case XTYPE_XBOX360:
-		xpad->odata[0] = 0x00;
-		xpad->odata[1] = 0x08;
-		xpad->odata[2] = 0x00;
-		xpad->odata[3] = strong / 256;  /* left actuator? */
-		xpad->odata[4] = weak / 256;	/* right actuator? */
-		xpad->odata[5] = 0x00;
-		xpad->odata[6] = 0x00;
-		xpad->odata[7] = 0x00;
-		xpad->irq_out->transfer_buffer_length = 8;
+		packet->data[0] = 0x00;
+		packet->data[1] = 0x08;
+		packet->data[2] = 0x00;
+		packet->data[3] = strong / 256;  /* left actuator? */
+		packet->data[4] = weak / 256;	/* right actuator? */
+		packet->data[5] = 0x00;
+		packet->data[6] = 0x00;
+		packet->data[7] = 0x00;
+		packet->len = 8;
+		packet->pending = true;
 		break;
 
 	case XTYPE_XBOX360W:
-		xpad->odata[0] = 0x00;
-		xpad->odata[1] = 0x01;
-		xpad->odata[2] = 0x0F;
-		xpad->odata[3] = 0xC0;
-		xpad->odata[4] = 0x00;
-		xpad->odata[5] = strong / 256;
-		xpad->odata[6] = weak / 256;
-		xpad->odata[7] = 0x00;
-		xpad->odata[8] = 0x00;
-		xpad->odata[9] = 0x00;
-		xpad->odata[10] = 0x00;
-		xpad->odata[11] = 0x00;
-		xpad->irq_out->transfer_buffer_length = 12;
+		packet->data[0] = 0x00;
+		packet->data[1] = 0x01;
+		packet->data[2] = 0x0F;
+		packet->data[3] = 0xC0;
+		packet->data[4] = 0x00;
+		packet->data[5] = strong / 256;
+		packet->data[6] = weak / 256;
+		packet->data[7] = 0x00;
+		packet->data[8] = 0x00;
+		packet->data[9] = 0x00;
+		packet->data[10] = 0x00;
+		packet->data[11] = 0x00;
+		packet->len = 12;
+		packet->pending = true;
 		break;
 
 	case XTYPE_XBOXONE:
-		xpad->odata[0] = 0x09; /* activate rumble */
-		xpad->odata[1] = 0x08;
-		xpad->odata[2] = 0x00;
-		xpad->odata[3] = 0x08; /* continuous effect */
-		xpad->odata[4] = 0x00; /* simple rumble mode */
-		xpad->odata[5] = 0x03; /* L and R actuator only */
-		xpad->odata[6] = 0x00; /* TODO: LT actuator */
-		xpad->odata[7] = 0x00; /* TODO: RT actuator */
-		xpad->odata[8] = strong / 256;	/* left actuator */
-		xpad->odata[9] = weak / 256;	/* right actuator */
-		xpad->odata[10] = 0x80;	/* length of pulse */
-		xpad->odata[11] = 0x00;	/* stop period of pulse */
-		xpad->irq_out->transfer_buffer_length = 12;
+		packet->data[0] = 0x09; /* activate rumble */
+		packet->data[1] = 0x08;
+		packet->data[2] = 0x00;
+		packet->data[3] = 0x08; /* continuous effect */
+		packet->data[4] = 0x00; /* simple rumble mode */
+		packet->data[5] = 0x03; /* L and R actuator only */
+		packet->data[6] = 0x00; /* TODO: LT actuator */
+		packet->data[7] = 0x00; /* TODO: RT actuator */
+		packet->data[8] = strong / 256;	/* left actuator */
+		packet->data[9] = weak / 256;	/* right actuator */
+		packet->data[10] = 0x80;	/* length of pulse */
+		packet->data[11] = 0x00;	/* stop period of pulse */
+		packet->len = 12;
+		packet->pending = true;
 		break;
 
 	default:
 		dev_dbg(&xpad->dev->dev,
 			"%s - rumble command sent to unsupported xpad type: %d\n",
 			__func__, xpad->xtype);
-		return -EINVAL;
+		retval = -EINVAL;
+		goto out;
 	}
 
-	return usb_submit_urb(xpad->irq_out, GFP_ATOMIC);
+	retval = xpad_try_sending_next_out_packet(xpad);
+
+out:
+	spin_unlock_irqrestore(&xpad->odata_lock, flags);
+	return retval;
 }
 
 static int xpad_init_ff(struct usb_xpad *xpad)
@@ -921,36 +1044,44 @@ struct xpad_led {
  */
 static void xpad_send_led_command(struct usb_xpad *xpad, int command)
 {
+	struct xpad_output_packet *packet =
+			&xpad->out_packets[XPAD_OUT_LED_IDX];
+	unsigned long flags;
+
 	command %= 16;
 
-	mutex_lock(&xpad->odata_mutex);
+	spin_lock_irqsave(&xpad->odata_lock, flags);
 
 	switch (xpad->xtype) {
 	case XTYPE_XBOX360:
-		xpad->odata[0] = 0x01;
-		xpad->odata[1] = 0x03;
-		xpad->odata[2] = command;
-		xpad->irq_out->transfer_buffer_length = 3;
+		packet->data[0] = 0x01;
+		packet->data[1] = 0x03;
+		packet->data[2] = command;
+		packet->len = 3;
+		packet->pending = true;
 		break;
+
 	case XTYPE_XBOX360W:
-		xpad->odata[0] = 0x00;
-		xpad->odata[1] = 0x00;
-		xpad->odata[2] = 0x08;
-		xpad->odata[3] = 0x40 + command;
-		xpad->odata[4] = 0x00;
-		xpad->odata[5] = 0x00;
-		xpad->odata[6] = 0x00;
-		xpad->odata[7] = 0x00;
-		xpad->odata[8] = 0x00;
-		xpad->odata[9] = 0x00;
-		xpad->odata[10] = 0x00;
-		xpad->odata[11] = 0x00;
-		xpad->irq_out->transfer_buffer_length = 12;
+		packet->data[0] = 0x00;
+		packet->data[1] = 0x00;
+		packet->data[2] = 0x08;
+		packet->data[3] = 0x40 + command;
+		packet->data[4] = 0x00;
+		packet->data[5] = 0x00;
+		packet->data[6] = 0x00;
+		packet->data[7] = 0x00;
+		packet->data[8] = 0x00;
+		packet->data[9] = 0x00;
+		packet->data[10] = 0x00;
+		packet->data[11] = 0x00;
+		packet->len = 12;
+		packet->pending = true;
 		break;
 	}
 
-	usb_submit_urb(xpad->irq_out, GFP_KERNEL);
-	mutex_unlock(&xpad->odata_mutex);
+	xpad_try_sending_next_out_packet(xpad);
+
+	spin_unlock_irqrestore(&xpad->odata_lock, flags);
 }
 
 /*
@@ -1048,13 +1179,8 @@ static int xpad_open(struct input_dev *d
 	if (usb_submit_urb(xpad->irq_in, GFP_KERNEL))
 		return -EIO;
 
-	if (xpad->xtype == XTYPE_XBOXONE) {
-		/* Xbox one controller needs to be initialized. */
-		xpad->odata[0] = 0x05;
-		xpad->odata[1] = 0x20;
-		xpad->irq_out->transfer_buffer_length = 2;
-		return usb_submit_urb(xpad->irq_out, GFP_KERNEL);
-	}
+	if (xpad->xtype == XTYPE_XBOXONE)
+		return xpad_start_xbox_one(xpad);
 
 	return 0;
 }
@@ -1114,6 +1240,12 @@ static int xpad_init_input(struct usb_xp
 	input_dev->name = xpad->name;
 	input_dev->phys = xpad->phys;
 	usb_to_input_id(xpad->udev, &input_dev->id);
+
+	if (xpad->xtype == XTYPE_XBOX360W) {
+		/* x360w controllers and the receiver have different ids */
+		input_dev->id.product = 0x02a1;
+	}
+
 	input_dev->dev.parent = &xpad->intf->dev;
 
 	input_set_drvdata(input_dev, xpad);
@@ -1200,22 +1332,15 @@ static int xpad_probe(struct usb_interfa
 	int ep_irq_in_idx;
 	int i, error;
 
+	if (intf->cur_altsetting->desc.bNumEndpoints != 2)
+		return -ENODEV;
+
 	for (i = 0; xpad_device[i].idVendor; i++) {
 		if ((le16_to_cpu(udev->descriptor.idVendor) == xpad_device[i].idVendor) &&
 		    (le16_to_cpu(udev->descriptor.idProduct) == xpad_device[i].idProduct))
 			break;
 	}
 
-	if (xpad_device[i].xtype == XTYPE_XBOXONE &&
-	    intf->cur_altsetting->desc.bInterfaceNumber != 0) {
-		/*
-		 * The Xbox One controller lists three interfaces all with the
-		 * same interface class, subclass and protocol. Differentiate by
-		 * interface number.
-		 */
-		return -ENODEV;
-	}
-
 	xpad = kzalloc(sizeof(struct usb_xpad), GFP_KERNEL);
 	if (!xpad)
 		return -ENOMEM;
@@ -1246,6 +1371,8 @@ static int xpad_probe(struct usb_interfa
 		if (intf->cur_altsetting->desc.bInterfaceClass == USB_CLASS_VENDOR_SPEC) {
 			if (intf->cur_altsetting->desc.bInterfaceProtocol == 129)
 				xpad->xtype = XTYPE_XBOX360W;
+			else if (intf->cur_altsetting->desc.bInterfaceProtocol == 208)
+				xpad->xtype = XTYPE_XBOXONE;
 			else
 				xpad->xtype = XTYPE_XBOX360;
 		} else {
@@ -1260,6 +1387,17 @@ static int xpad_probe(struct usb_interfa
 			xpad->mapping |= MAP_STICKS_TO_NULL;
 	}
 
+	if (xpad->xtype == XTYPE_XBOXONE &&
+	    intf->cur_altsetting->desc.bInterfaceNumber != 0) {
+		/*
+		 * The Xbox One controller lists three interfaces all with the
+		 * same interface class, subclass and protocol. Differentiate by
+		 * interface number.
+		 */
+		error = -ENODEV;
+		goto err_free_in_urb;
+	}
+
 	error = xpad_init_output(intf, xpad);
 	if (error)
 		goto err_free_in_urb;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/input/keyboard/mpr121_touchkey.c linux-libre-4.4.107-gnu/drivers/input/keyboard/mpr121_touchkey.c
--- linux-libre-4.4-gnu/drivers/input/keyboard/mpr121_touchkey.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/input/keyboard/mpr121_touchkey.c	2017-12-20 04:05:01.000000000 -0500
@@ -87,7 +87,8 @@ static irqreturn_t mpr_touchkey_interrup
 	struct mpr121_touchkey *mpr121 = dev_id;
 	struct i2c_client *client = mpr121->client;
 	struct input_dev *input = mpr121->input_dev;
-	unsigned int key_num, key_val, pressed;
+	unsigned long bit_changed;
+	unsigned int key_num;
 	int reg;
 
 	reg = i2c_smbus_read_byte_data(client, ELE_TOUCH_STATUS_1_ADDR);
@@ -105,18 +106,22 @@ static irqreturn_t mpr_touchkey_interrup
 
 	reg &= TOUCH_STATUS_MASK;
 	/* use old press bit to figure out which bit changed */
-	key_num = ffs(reg ^ mpr121->statusbits) - 1;
-	pressed = reg & (1 << key_num);
+	bit_changed = reg ^ mpr121->statusbits;
 	mpr121->statusbits = reg;
+	for_each_set_bit(key_num, &bit_changed, mpr121->keycount) {
+		unsigned int key_val, pressed;
 
-	key_val = mpr121->keycodes[key_num];
+		pressed = reg & BIT(key_num);
+		key_val = mpr121->keycodes[key_num];
 
-	input_event(input, EV_MSC, MSC_SCAN, key_num);
-	input_report_key(input, key_val, pressed);
-	input_sync(input);
+		input_event(input, EV_MSC, MSC_SCAN, key_num);
+		input_report_key(input, key_val, pressed);
 
-	dev_dbg(&client->dev, "key %d %d %s\n", key_num, key_val,
-		pressed ? "pressed" : "released");
+		dev_dbg(&client->dev, "key %d %d %s\n", key_num, key_val,
+			pressed ? "pressed" : "released");
+
+	}
+	input_sync(input);
 
 out:
 	return IRQ_HANDLED;
@@ -231,6 +236,7 @@ static int mpr_touchkey_probe(struct i2c
 	input_dev->id.bustype = BUS_I2C;
 	input_dev->dev.parent = &client->dev;
 	input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP);
+	input_set_capability(input_dev, EV_MSC, MSC_SCAN);
 
 	input_dev->keycode = mpr121->keycodes;
 	input_dev->keycodesize = sizeof(mpr121->keycodes[0]);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/input/keyboard/tegra-kbc.c linux-libre-4.4.107-gnu/drivers/input/keyboard/tegra-kbc.c
--- linux-libre-4.4-gnu/drivers/input/keyboard/tegra-kbc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/input/keyboard/tegra-kbc.c	2017-12-20 04:05:01.000000000 -0500
@@ -376,7 +376,7 @@ static int tegra_kbc_start(struct tegra_
 	/* Reset the KBC controller to clear all previous status.*/
 	reset_control_assert(kbc->rst);
 	udelay(100);
-	reset_control_assert(kbc->rst);
+	reset_control_deassert(kbc->rst);
 	udelay(100);
 
 	tegra_kbc_config_pins(kbc);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/input/misc/ati_remote2.c linux-libre-4.4.107-gnu/drivers/input/misc/ati_remote2.c
--- linux-libre-4.4-gnu/drivers/input/misc/ati_remote2.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/input/misc/ati_remote2.c	2017-12-20 04:05:01.000000000 -0500
@@ -817,26 +817,49 @@ static int ati_remote2_probe(struct usb_
 
 	ar2->udev = udev;
 
+	/* Sanity check, first interface must have an endpoint */
+	if (alt->desc.bNumEndpoints < 1 || !alt->endpoint) {
+		dev_err(&interface->dev,
+			"%s(): interface 0 must have an endpoint\n", __func__);
+		r = -ENODEV;
+		goto fail1;
+	}
 	ar2->intf[0] = interface;
 	ar2->ep[0] = &alt->endpoint[0].desc;
 
+	/* Sanity check, the device must have two interfaces */
 	ar2->intf[1] = usb_ifnum_to_if(udev, 1);
+	if ((udev->actconfig->desc.bNumInterfaces < 2) || !ar2->intf[1]) {
+		dev_err(&interface->dev, "%s(): need 2 interfaces, found %d\n",
+			__func__, udev->actconfig->desc.bNumInterfaces);
+		r = -ENODEV;
+		goto fail1;
+	}
+
 	r = usb_driver_claim_interface(&ati_remote2_driver, ar2->intf[1], ar2);
 	if (r)
 		goto fail1;
+
+	/* Sanity check, second interface must have an endpoint */
 	alt = ar2->intf[1]->cur_altsetting;
+	if (alt->desc.bNumEndpoints < 1 || !alt->endpoint) {
+		dev_err(&interface->dev,
+			"%s(): interface 1 must have an endpoint\n", __func__);
+		r = -ENODEV;
+		goto fail2;
+	}
 	ar2->ep[1] = &alt->endpoint[0].desc;
 
 	r = ati_remote2_urb_init(ar2);
 	if (r)
-		goto fail2;
+		goto fail3;
 
 	ar2->channel_mask = channel_mask;
 	ar2->mode_mask = mode_mask;
 
 	r = ati_remote2_setup(ar2, ar2->channel_mask);
 	if (r)
-		goto fail2;
+		goto fail3;
 
 	usb_make_path(udev, ar2->phys, sizeof(ar2->phys));
 	strlcat(ar2->phys, "/input0", sizeof(ar2->phys));
@@ -845,11 +868,11 @@ static int ati_remote2_probe(struct usb_
 
 	r = sysfs_create_group(&udev->dev.kobj, &ati_remote2_attr_group);
 	if (r)
-		goto fail2;
+		goto fail3;
 
 	r = ati_remote2_input_init(ar2);
 	if (r)
-		goto fail3;
+		goto fail4;
 
 	usb_set_intfdata(interface, ar2);
 
@@ -857,10 +880,11 @@ static int ati_remote2_probe(struct usb_
 
 	return 0;
 
- fail3:
+ fail4:
 	sysfs_remove_group(&udev->dev.kobj, &ati_remote2_attr_group);
- fail2:
+ fail3:
 	ati_remote2_urb_cleanup(ar2);
+ fail2:
 	usb_driver_release_interface(&ati_remote2_driver, ar2->intf[1]);
  fail1:
 	kfree(ar2);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/input/misc/cm109.c linux-libre-4.4.107-gnu/drivers/input/misc/cm109.c
--- linux-libre-4.4-gnu/drivers/input/misc/cm109.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/input/misc/cm109.c	2017-12-20 04:05:01.000000000 -0500
@@ -675,6 +675,10 @@ static int cm109_usb_probe(struct usb_in
 	int error = -ENOMEM;
 
 	interface = intf->cur_altsetting;
+
+	if (interface->desc.bNumEndpoints < 1)
+		return -ENODEV;
+
 	endpoint = &interface->endpoint[0].desc;
 
 	if (!usb_endpoint_is_int_in(endpoint))
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/input/misc/drv260x.c linux-libre-4.4.107-gnu/drivers/input/misc/drv260x.c
--- linux-libre-4.4-gnu/drivers/input/misc/drv260x.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/input/misc/drv260x.c	2017-12-20 04:05:01.000000000 -0500
@@ -592,7 +592,6 @@ static int drv260x_probe(struct i2c_clie
 	}
 
 	haptics->input_dev->name = "drv260x:haptics";
-	haptics->input_dev->dev.parent = client->dev.parent;
 	haptics->input_dev->close = drv260x_close;
 	input_set_drvdata(haptics->input_dev, haptics);
 	input_set_capability(haptics->input_dev, EV_FF, FF_RUMBLE);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/input/misc/ims-pcu.c linux-libre-4.4.107-gnu/drivers/input/misc/ims-pcu.c
--- linux-libre-4.4-gnu/drivers/input/misc/ims-pcu.c	2016-01-10 21:13:24.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/input/misc/ims-pcu.c	2017-12-20 11:41:46.000000000 -0500
@@ -1635,13 +1635,25 @@ ims_pcu_get_cdc_union_desc(struct usb_in
 		return NULL;
 	}
 
-	while (buflen > 0) {
+	while (buflen >= sizeof(*union_desc)) {
 		union_desc = (struct usb_cdc_union_desc *)buf;
 
+		if (union_desc->bLength > buflen) {
+			dev_err(&intf->dev, "Too large descriptor\n");
+			return NULL;
+		}
+
 		if (union_desc->bDescriptorType == USB_DT_CS_INTERFACE &&
 		    union_desc->bDescriptorSubType == USB_CDC_UNION_TYPE) {
 			dev_dbg(&intf->dev, "Found union header\n");
-			return union_desc;
+
+			if (union_desc->bLength >= sizeof(*union_desc))
+				return union_desc;
+
+			dev_err(&intf->dev,
+				"Union descriptor to short (%d vs %zd\n)",
+				union_desc->bLength, sizeof(*union_desc));
+			return NULL;
 		}
 
 		buflen -= union_desc->bLength;
@@ -1663,13 +1675,21 @@ static int ims_pcu_parse_cdc_data(struct
 
 	pcu->ctrl_intf = usb_ifnum_to_if(pcu->udev,
 					 union_desc->bMasterInterface0);
+	if (!pcu->ctrl_intf)
+		return -EINVAL;
 
 	alt = pcu->ctrl_intf->cur_altsetting;
+
+	if (alt->desc.bNumEndpoints < 1)
+		return -ENODEV;
+
 	pcu->ep_ctrl = &alt->endpoint[0].desc;
 	pcu->max_ctrl_size = usb_endpoint_maxp(pcu->ep_ctrl);
 
 	pcu->data_intf = usb_ifnum_to_if(pcu->udev,
 					 union_desc->bSlaveInterface0);
+	if (!pcu->data_intf)
+		return -EINVAL;
 
 	alt = pcu->data_intf->cur_altsetting;
 	if (alt->desc.bNumEndpoints != 2) {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/input/misc/max8997_haptic.c linux-libre-4.4.107-gnu/drivers/input/misc/max8997_haptic.c
--- linux-libre-4.4-gnu/drivers/input/misc/max8997_haptic.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/input/misc/max8997_haptic.c	2017-12-20 04:05:01.000000000 -0500
@@ -255,12 +255,14 @@ static int max8997_haptic_probe(struct p
 	struct max8997_dev *iodev = dev_get_drvdata(pdev->dev.parent);
 	const struct max8997_platform_data *pdata =
 					dev_get_platdata(iodev->dev);
-	const struct max8997_haptic_platform_data *haptic_pdata =
-					pdata->haptic_pdata;
+	const struct max8997_haptic_platform_data *haptic_pdata = NULL;
 	struct max8997_haptic *chip;
 	struct input_dev *input_dev;
 	int error;
 
+	if (pdata)
+		haptic_pdata = pdata->haptic_pdata;
+
 	if (!haptic_pdata) {
 		dev_err(&pdev->dev, "no haptic platform data\n");
 		return -EINVAL;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/input/misc/pmic8xxx-pwrkey.c linux-libre-4.4.107-gnu/drivers/input/misc/pmic8xxx-pwrkey.c
--- linux-libre-4.4-gnu/drivers/input/misc/pmic8xxx-pwrkey.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/input/misc/pmic8xxx-pwrkey.c	2017-12-20 04:05:01.000000000 -0500
@@ -353,7 +353,8 @@ static int pmic8xxx_pwrkey_probe(struct
 	if (of_property_read_u32(pdev->dev.of_node, "debounce", &kpd_delay))
 		kpd_delay = 15625;
 
-	if (kpd_delay > 62500 || kpd_delay == 0) {
+	/* Valid range of pwr key trigger delay is 1/64 sec to 2 seconds. */
+	if (kpd_delay > USEC_PER_SEC * 2 || kpd_delay < USEC_PER_SEC / 64) {
 		dev_err(&pdev->dev, "invalid power key trigger delay\n");
 		return -EINVAL;
 	}
@@ -385,8 +386,8 @@ static int pmic8xxx_pwrkey_probe(struct
 	pwr->name = "pmic8xxx_pwrkey";
 	pwr->phys = "pmic8xxx_pwrkey/input0";
 
-	delay = (kpd_delay << 10) / USEC_PER_SEC;
-	delay = 1 + ilog2(delay);
+	delay = (kpd_delay << 6) / USEC_PER_SEC;
+	delay = ilog2(delay);
 
 	err = regmap_read(regmap, PON_CNTL_1, &pon_cntl);
 	if (err < 0) {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/input/misc/powermate.c linux-libre-4.4.107-gnu/drivers/input/misc/powermate.c
--- linux-libre-4.4-gnu/drivers/input/misc/powermate.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/input/misc/powermate.c	2017-12-20 04:05:01.000000000 -0500
@@ -307,6 +307,9 @@ static int powermate_probe(struct usb_in
 	int error = -ENOMEM;
 
 	interface = intf->cur_altsetting;
+	if (interface->desc.bNumEndpoints < 1)
+		return -EINVAL;
+
 	endpoint = &interface->endpoint[0].desc;
 	if (!usb_endpoint_is_int_in(endpoint))
 		return -EIO;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/input/misc/pwm-beeper.c linux-libre-4.4.107-gnu/drivers/input/misc/pwm-beeper.c
--- linux-libre-4.4-gnu/drivers/input/misc/pwm-beeper.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/input/misc/pwm-beeper.c	2017-12-20 04:05:01.000000000 -0500
@@ -20,21 +20,40 @@
 #include <linux/platform_device.h>
 #include <linux/pwm.h>
 #include <linux/slab.h>
+#include <linux/workqueue.h>
 
 struct pwm_beeper {
 	struct input_dev *input;
 	struct pwm_device *pwm;
+	struct work_struct work;
 	unsigned long period;
 };
 
 #define HZ_TO_NANOSECONDS(x) (1000000000UL/(x))
 
+static void __pwm_beeper_set(struct pwm_beeper *beeper)
+{
+	unsigned long period = beeper->period;
+
+	if (period) {
+		pwm_config(beeper->pwm, period / 2, period);
+		pwm_enable(beeper->pwm);
+	} else
+		pwm_disable(beeper->pwm);
+}
+
+static void pwm_beeper_work(struct work_struct *work)
+{
+	struct pwm_beeper *beeper =
+		container_of(work, struct pwm_beeper, work);
+
+	__pwm_beeper_set(beeper);
+}
+
 static int pwm_beeper_event(struct input_dev *input,
 			    unsigned int type, unsigned int code, int value)
 {
-	int ret = 0;
 	struct pwm_beeper *beeper = input_get_drvdata(input);
-	unsigned long period;
 
 	if (type != EV_SND || value < 0)
 		return -EINVAL;
@@ -49,22 +68,31 @@ static int pwm_beeper_event(struct input
 		return -EINVAL;
 	}
 
-	if (value == 0) {
-		pwm_disable(beeper->pwm);
-	} else {
-		period = HZ_TO_NANOSECONDS(value);
-		ret = pwm_config(beeper->pwm, period / 2, period);
-		if (ret)
-			return ret;
-		ret = pwm_enable(beeper->pwm);
-		if (ret)
-			return ret;
-		beeper->period = period;
-	}
+	if (value == 0)
+		beeper->period = 0;
+	else
+		beeper->period = HZ_TO_NANOSECONDS(value);
+
+	schedule_work(&beeper->work);
 
 	return 0;
 }
 
+static void pwm_beeper_stop(struct pwm_beeper *beeper)
+{
+	cancel_work_sync(&beeper->work);
+
+	if (beeper->period)
+		pwm_disable(beeper->pwm);
+}
+
+static void pwm_beeper_close(struct input_dev *input)
+{
+	struct pwm_beeper *beeper = input_get_drvdata(input);
+
+	pwm_beeper_stop(beeper);
+}
+
 static int pwm_beeper_probe(struct platform_device *pdev)
 {
 	unsigned long pwm_id = (unsigned long)dev_get_platdata(&pdev->dev);
@@ -87,6 +115,8 @@ static int pwm_beeper_probe(struct platf
 		goto err_free;
 	}
 
+	INIT_WORK(&beeper->work, pwm_beeper_work);
+
 	beeper->input = input_allocate_device();
 	if (!beeper->input) {
 		dev_err(&pdev->dev, "Failed to allocate input device\n");
@@ -106,6 +136,7 @@ static int pwm_beeper_probe(struct platf
 	beeper->input->sndbit[0] = BIT(SND_TONE) | BIT(SND_BELL);
 
 	beeper->input->event = pwm_beeper_event;
+	beeper->input->close = pwm_beeper_close;
 
 	input_set_drvdata(beeper->input, beeper);
 
@@ -135,7 +166,6 @@ static int pwm_beeper_remove(struct plat
 
 	input_unregister_device(beeper->input);
 
-	pwm_disable(beeper->pwm);
 	pwm_free(beeper->pwm);
 
 	kfree(beeper);
@@ -147,8 +177,7 @@ static int __maybe_unused pwm_beeper_sus
 {
 	struct pwm_beeper *beeper = dev_get_drvdata(dev);
 
-	if (beeper->period)
-		pwm_disable(beeper->pwm);
+	pwm_beeper_stop(beeper);
 
 	return 0;
 }
@@ -157,10 +186,8 @@ static int __maybe_unused pwm_beeper_res
 {
 	struct pwm_beeper *beeper = dev_get_drvdata(dev);
 
-	if (beeper->period) {
-		pwm_config(beeper->pwm, beeper->period / 2, beeper->period);
-		pwm_enable(beeper->pwm);
-	}
+	if (beeper->period)
+		__pwm_beeper_set(beeper);
 
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/input/misc/uinput.c linux-libre-4.4.107-gnu/drivers/input/misc/uinput.c
--- linux-libre-4.4-gnu/drivers/input/misc/uinput.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/input/misc/uinput.c	2017-12-20 04:05:01.000000000 -0500
@@ -893,9 +893,15 @@ static long uinput_ioctl(struct file *fi
 }
 
 #ifdef CONFIG_COMPAT
+
+#define UI_SET_PHYS_COMPAT	_IOW(UINPUT_IOCTL_BASE, 108, compat_uptr_t)
+
 static long uinput_compat_ioctl(struct file *file,
 				unsigned int cmd, unsigned long arg)
 {
+	if (cmd == UI_SET_PHYS_COMPAT)
+		cmd = UI_SET_PHYS;
+
 	return uinput_ioctl_handler(file, cmd, arg, compat_ptr(arg));
 }
 #endif
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/input/misc/yealink.c linux-libre-4.4.107-gnu/drivers/input/misc/yealink.c
--- linux-libre-4.4-gnu/drivers/input/misc/yealink.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/input/misc/yealink.c	2017-12-20 04:05:01.000000000 -0500
@@ -875,6 +875,10 @@ static int usb_probe(struct usb_interfac
 	int ret, pipe, i;
 
 	interface = intf->cur_altsetting;
+
+	if (interface->desc.bNumEndpoints < 1)
+		return -ENODEV;
+
 	endpoint = &interface->endpoint[0].desc;
 	if (!usb_endpoint_is_int_in(endpoint))
 		return -ENODEV;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/input/mouse/elan_i2c_core.c linux-libre-4.4.107-gnu/drivers/input/mouse/elan_i2c_core.c
--- linux-libre-4.4-gnu/drivers/input/mouse/elan_i2c_core.c	2016-01-10 21:13:04.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/input/mouse/elan_i2c_core.c	2017-12-20 11:41:07.000000000 -0500
@@ -4,7 +4,8 @@
  * Copyright (c) 2013 ELAN Microelectronics Corp.
  *
  * Author: 林政維 (Duson Lin) <dusonlin@emc.com.tw>
- * Version: 1.6.0
+ * Author: KT Liao <kt.liao@emc.com.tw>
+ * Version: 1.6.2
  *
  * Based on cyapa driver:
  * copyright (c) 2011-2012 Cypress Semiconductor, Inc.
@@ -40,7 +41,7 @@
 #include "elan_i2c.h"
 
 #define DRIVER_NAME		"elan_i2c"
-#define ELAN_DRIVER_VERSION	"1.6.1"
+#define ELAN_DRIVER_VERSION	"1.6.2"
 #define ELAN_VENDOR_ID		0x04f3
 #define ETP_MAX_PRESSURE	255
 #define ETP_FWIDTH_REDUCE	90
@@ -199,9 +200,43 @@ static int elan_sleep(struct elan_tp_dat
 	return error;
 }
 
+static int elan_query_product(struct elan_tp_data *data)
+{
+	int error;
+
+	error = data->ops->get_product_id(data->client, &data->product_id);
+	if (error)
+		return error;
+
+	error = data->ops->get_sm_version(data->client, &data->ic_type,
+					  &data->sm_version);
+	if (error)
+		return error;
+
+	return 0;
+}
+
+static int elan_check_ASUS_special_fw(struct elan_tp_data *data)
+{
+	if (data->ic_type == 0x0E) {
+		switch (data->product_id) {
+		case 0x05 ... 0x07:
+		case 0x09:
+		case 0x13:
+			return true;
+		}
+	} else if (data->ic_type == 0x08 && data->product_id == 0x26) {
+		/* ASUS EeeBook X205TA */
+		return true;
+	}
+
+	return false;
+}
+
 static int __elan_initialize(struct elan_tp_data *data)
 {
 	struct i2c_client *client = data->client;
+	bool woken_up = false;
 	int error;
 
 	error = data->ops->initialize(client);
@@ -210,6 +245,27 @@ static int __elan_initialize(struct elan
 		return error;
 	}
 
+	error = elan_query_product(data);
+	if (error)
+		return error;
+
+	/*
+	 * Some ASUS devices were shipped with firmware that requires
+	 * touchpads to be woken up first, before attempting to switch
+	 * them into absolute reporting mode.
+	 */
+	if (elan_check_ASUS_special_fw(data)) {
+		error = data->ops->sleep_control(client, false);
+		if (error) {
+			dev_err(&client->dev,
+				"failed to wake device up: %d\n", error);
+			return error;
+		}
+
+		msleep(200);
+		woken_up = true;
+	}
+
 	data->mode |= ETP_ENABLE_ABS;
 	error = data->ops->set_mode(client, data->mode);
 	if (error) {
@@ -218,11 +274,13 @@ static int __elan_initialize(struct elan
 		return error;
 	}
 
-	error = data->ops->sleep_control(client, false);
-	if (error) {
-		dev_err(&client->dev,
-			"failed to wake device up: %d\n", error);
-		return error;
+	if (!woken_up) {
+		error = data->ops->sleep_control(client, false);
+		if (error) {
+			dev_err(&client->dev,
+				"failed to wake device up: %d\n", error);
+			return error;
+		}
 	}
 
 	return 0;
@@ -248,10 +306,6 @@ static int elan_query_device_info(struct
 {
 	int error;
 
-	error = data->ops->get_product_id(data->client, &data->product_id);
-	if (error)
-		return error;
-
 	error = data->ops->get_version(data->client, false, &data->fw_version);
 	if (error)
 		return error;
@@ -261,11 +315,6 @@ static int elan_query_device_info(struct
 	if (error)
 		return error;
 
-	error = data->ops->get_sm_version(data->client, &data->ic_type,
-					  &data->sm_version);
-	if (error)
-		return error;
-
 	error = data->ops->get_version(data->client, true, &data->iap_version);
 	if (error)
 		return error;
@@ -1185,6 +1234,14 @@ static const struct acpi_device_id elan_
 	{ "ELAN0000", 0 },
 	{ "ELAN0100", 0 },
 	{ "ELAN0600", 0 },
+	{ "ELAN0602", 0 },
+	{ "ELAN0605", 0 },
+	{ "ELAN0608", 0 },
+	{ "ELAN0605", 0 },
+	{ "ELAN0609", 0 },
+	{ "ELAN060B", 0 },
+	{ "ELAN060C", 0 },
+	{ "ELAN0611", 0 },
 	{ "ELAN1000", 0 },
 	{ }
 };
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/input/mouse/elantech.c linux-libre-4.4.107-gnu/drivers/input/mouse/elantech.c
--- linux-libre-4.4-gnu/drivers/input/mouse/elantech.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/input/mouse/elantech.c	2017-12-20 04:05:01.000000000 -0500
@@ -1122,7 +1122,10 @@ static int elantech_get_resolution_v4(st
  * Asus UX32VD             0x361f02        00, 15, 0e      clickpad
  * Avatar AVIU-145A2       0x361f00        ?               clickpad
  * Fujitsu LIFEBOOK E544   0x470f00        d0, 12, 09      2 hw buttons
+ * Fujitsu LIFEBOOK E546   0x470f00        50, 12, 09      2 hw buttons
+ * Fujitsu LIFEBOOK E547   0x470f00        50, 12, 09      2 hw buttons
  * Fujitsu LIFEBOOK E554   0x570f01        40, 14, 0c      2 hw buttons
+ * Fujitsu LIFEBOOK E557   0x570f01        40, 14, 0c      2 hw buttons
  * Fujitsu T725            0x470f01        05, 12, 09      2 hw buttons
  * Fujitsu H730            0x570f00        c0, 14, 0c      3 hw buttons (**)
  * Gigabyte U2442          0x450f01        58, 17, 0c      2 hw buttons
@@ -1163,6 +1166,13 @@ static const struct dmi_system_id elante
 			DMI_MATCH(DMI_PRODUCT_NAME, "CELSIUS H730"),
 		},
 	},
+	{
+		/* Fujitsu H760 also has a middle button */
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "CELSIUS H760"),
+		},
+	},
 #endif
 	{ }
 };
@@ -1222,7 +1232,7 @@ static int elantech_set_input_params(str
 			input_set_abs_params(dev, ABS_TOOL_WIDTH, ETP_WMIN_V2,
 					     ETP_WMAX_V2, 0, 0);
 		}
-		input_mt_init_slots(dev, 2, 0);
+		input_mt_init_slots(dev, 2, INPUT_MT_SEMI_MT);
 		input_set_abs_params(dev, ABS_MT_POSITION_X, x_min, x_max, 0, 0);
 		input_set_abs_params(dev, ABS_MT_POSITION_Y, y_min, y_max, 0, 0);
 		break;
@@ -1507,10 +1517,10 @@ static const struct dmi_system_id elante
 		},
 	},
 	{
-		/* Fujitsu LIFEBOOK E554  does not work with crc_enabled == 0 */
+		/* Fujitsu H760 does not work with crc_enabled == 0 */
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
-			DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK E554"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "CELSIUS H760"),
 		},
 	},
 	{
@@ -1521,6 +1531,41 @@ static const struct dmi_system_id elante
 		},
 	},
 	{
+		/* Fujitsu LIFEBOOK E546  does not work with crc_enabled == 0 */
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK E546"),
+		},
+	},
+	{
+		/* Fujitsu LIFEBOOK E547 does not work with crc_enabled == 0 */
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK E547"),
+		},
+	},
+	{
+		/* Fujitsu LIFEBOOK E554  does not work with crc_enabled == 0 */
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK E554"),
+		},
+	},
+	{
+		/* Fujitsu LIFEBOOK E556 does not work with crc_enabled == 0 */
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK E556"),
+		},
+	},
+	{
+		/* Fujitsu LIFEBOOK E557 does not work with crc_enabled == 0 */
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK E557"),
+		},
+	},
+	{
 		/* Fujitsu LIFEBOOK U745 does not work with crc_enabled == 0 */
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
@@ -1568,13 +1613,7 @@ static int elantech_set_properties(struc
 		case 5:
 			etd->hw_version = 3;
 			break;
-		case 6:
-		case 7:
-		case 8:
-		case 9:
-		case 10:
-		case 13:
-		case 14:
+		case 6 ... 14:
 			etd->hw_version = 4;
 			break;
 		default:
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/input/mouse/synaptics.c linux-libre-4.4.107-gnu/drivers/input/mouse/synaptics.c
--- linux-libre-4.4-gnu/drivers/input/mouse/synaptics.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/input/mouse/synaptics.c	2017-12-20 04:05:01.000000000 -0500
@@ -862,8 +862,9 @@ static void synaptics_report_ext_buttons
 	if (!SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap))
 		return;
 
-	/* Bug in FW 8.1, buttons are reported only when ExtBit is 1 */
-	if (SYN_ID_FULL(priv->identity) == 0x801 &&
+	/* Bug in FW 8.1 & 8.2, buttons are reported only when ExtBit is 1 */
+	if ((SYN_ID_FULL(priv->identity) == 0x801 ||
+	     SYN_ID_FULL(priv->identity) == 0x802) &&
 	    !((psmouse->packet[0] ^ psmouse->packet[3]) & 0x02))
 		return;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/input/mouse/trackpoint.c linux-libre-4.4.107-gnu/drivers/input/mouse/trackpoint.c
--- linux-libre-4.4-gnu/drivers/input/mouse/trackpoint.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/input/mouse/trackpoint.c	2017-12-20 04:05:01.000000000 -0500
@@ -265,7 +265,8 @@ static int trackpoint_start_protocol(str
 	if (ps2_command(&psmouse->ps2dev, param, MAKE_PS2_CMD(0, 2, TP_READ_ID)))
 		return -1;
 
-	if (param[0] != TP_MAGIC_IDENT)
+	/* add new TP ID. */
+	if (!(param[0] & TP_MAGIC_IDENT))
 		return -1;
 
 	if (firmware_id)
@@ -380,8 +381,8 @@ int trackpoint_detect(struct psmouse *ps
 		return 0;
 
 	if (trackpoint_read(&psmouse->ps2dev, TP_EXT_BTN, &button_info)) {
-		psmouse_warn(psmouse, "failed to get extended button data\n");
-		button_info = 0;
+		psmouse_warn(psmouse, "failed to get extended button data, assuming 3 buttons\n");
+		button_info = 0x33;
 	}
 
 	psmouse->private = kzalloc(sizeof(struct trackpoint_data), GFP_KERNEL);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/input/mouse/trackpoint.h linux-libre-4.4.107-gnu/drivers/input/mouse/trackpoint.h
--- linux-libre-4.4-gnu/drivers/input/mouse/trackpoint.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/input/mouse/trackpoint.h	2017-12-20 04:05:01.000000000 -0500
@@ -21,8 +21,9 @@
 #define TP_COMMAND		0xE2	/* Commands start with this */
 
 #define TP_READ_ID		0xE1	/* Sent for device identification */
-#define TP_MAGIC_IDENT		0x01	/* Sent after a TP_READ_ID followed */
+#define TP_MAGIC_IDENT		0x03	/* Sent after a TP_READ_ID followed */
 					/* by the firmware ID */
+					/* Firmware ID includes 0x1, 0x2, 0x3 */
 
 
 /*
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/input/mouse/vmmouse.c linux-libre-4.4.107-gnu/drivers/input/mouse/vmmouse.c
--- linux-libre-4.4-gnu/drivers/input/mouse/vmmouse.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/input/mouse/vmmouse.c	2017-12-20 04:05:01.000000000 -0500
@@ -355,18 +355,11 @@ int vmmouse_detect(struct psmouse *psmou
 		return -ENXIO;
 	}
 
-	if (!request_region(VMMOUSE_PROTO_PORT, 4, "vmmouse")) {
-		psmouse_dbg(psmouse, "VMMouse port in use.\n");
-		return -EBUSY;
-	}
-
 	/* Check if the device is present */
 	response = ~VMMOUSE_PROTO_MAGIC;
 	VMMOUSE_CMD(GETVERSION, 0, version, response, dummy1, dummy2);
-	if (response != VMMOUSE_PROTO_MAGIC || version == 0xffffffffU) {
-		release_region(VMMOUSE_PROTO_PORT, 4);
+	if (response != VMMOUSE_PROTO_MAGIC || version == 0xffffffffU)
 		return -ENXIO;
-	}
 
 	if (set_properties) {
 		psmouse->vendor = VMMOUSE_VENDOR;
@@ -374,8 +367,6 @@ int vmmouse_detect(struct psmouse *psmou
 		psmouse->model = version;
 	}
 
-	release_region(VMMOUSE_PROTO_PORT, 4);
-
 	return 0;
 }
 
@@ -394,7 +385,6 @@ static void vmmouse_disconnect(struct ps
 	psmouse_reset(psmouse);
 	input_unregister_device(priv->abs_dev);
 	kfree(priv);
-	release_region(VMMOUSE_PROTO_PORT, 4);
 }
 
 /**
@@ -438,15 +428,10 @@ int vmmouse_init(struct psmouse *psmouse
 	struct input_dev *rel_dev = psmouse->dev, *abs_dev;
 	int error;
 
-	if (!request_region(VMMOUSE_PROTO_PORT, 4, "vmmouse")) {
-		psmouse_dbg(psmouse, "VMMouse port in use.\n");
-		return -EBUSY;
-	}
-
 	psmouse_reset(psmouse);
 	error = vmmouse_enable(psmouse);
 	if (error)
-		goto release_region;
+		return error;
 
 	priv = kzalloc(sizeof(*priv), GFP_KERNEL);
 	abs_dev = input_allocate_device();
@@ -458,8 +443,6 @@ int vmmouse_init(struct psmouse *psmouse
 	priv->abs_dev = abs_dev;
 	psmouse->private = priv;
 
-	input_set_capability(rel_dev, EV_REL, REL_WHEEL);
-
 	/* Set up and register absolute device */
 	snprintf(priv->phys, sizeof(priv->phys), "%s/input1",
 		 psmouse->ps2dev.serio->phys);
@@ -475,10 +458,6 @@ int vmmouse_init(struct psmouse *psmouse
 	abs_dev->id.version = psmouse->model;
 	abs_dev->dev.parent = &psmouse->ps2dev.serio->dev;
 
-	error = input_register_device(priv->abs_dev);
-	if (error)
-		goto init_fail;
-
 	/* Set absolute device capabilities */
 	input_set_capability(abs_dev, EV_KEY, BTN_LEFT);
 	input_set_capability(abs_dev, EV_KEY, BTN_RIGHT);
@@ -488,6 +467,13 @@ int vmmouse_init(struct psmouse *psmouse
 	input_set_abs_params(abs_dev, ABS_X, 0, VMMOUSE_MAX_X, 0, 0);
 	input_set_abs_params(abs_dev, ABS_Y, 0, VMMOUSE_MAX_Y, 0, 0);
 
+	error = input_register_device(priv->abs_dev);
+	if (error)
+		goto init_fail;
+
+	/* Add wheel capability to the relative device */
+	input_set_capability(rel_dev, EV_REL, REL_WHEEL);
+
 	psmouse->protocol_handler = vmmouse_process_byte;
 	psmouse->disconnect = vmmouse_disconnect;
 	psmouse->reconnect = vmmouse_reconnect;
@@ -501,8 +487,5 @@ init_fail:
 	kfree(priv);
 	psmouse->private = NULL;
 
-release_region:
-	release_region(VMMOUSE_PROTO_PORT, 4);
-
 	return error;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/input/serio/i8042.c linux-libre-4.4.107-gnu/drivers/input/serio/i8042.c
--- linux-libre-4.4-gnu/drivers/input/serio/i8042.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/input/serio/i8042.c	2017-12-20 04:05:01.000000000 -0500
@@ -48,9 +48,39 @@ static bool i8042_unlock;
 module_param_named(unlock, i8042_unlock, bool, 0);
 MODULE_PARM_DESC(unlock, "Ignore keyboard lock.");
 
-static bool i8042_reset;
-module_param_named(reset, i8042_reset, bool, 0);
-MODULE_PARM_DESC(reset, "Reset controller during init and cleanup.");
+enum i8042_controller_reset_mode {
+	I8042_RESET_NEVER,
+	I8042_RESET_ALWAYS,
+	I8042_RESET_ON_S2RAM,
+#define I8042_RESET_DEFAULT	I8042_RESET_ON_S2RAM
+};
+static enum i8042_controller_reset_mode i8042_reset = I8042_RESET_DEFAULT;
+static int i8042_set_reset(const char *val, const struct kernel_param *kp)
+{
+	enum i8042_controller_reset_mode *arg = kp->arg;
+	int error;
+	bool reset;
+
+	if (val) {
+		error = kstrtobool(val, &reset);
+		if (error)
+			return error;
+	} else {
+		reset = true;
+	}
+
+	*arg = reset ? I8042_RESET_ALWAYS : I8042_RESET_NEVER;
+	return 0;
+}
+
+static const struct kernel_param_ops param_ops_reset_param = {
+	.flags = KERNEL_PARAM_OPS_FL_NOARG,
+	.set = i8042_set_reset,
+};
+#define param_check_reset_param(name, p)	\
+	__param_check(name, p, enum i8042_controller_reset_mode)
+module_param_named(reset, i8042_reset, reset_param, 0);
+MODULE_PARM_DESC(reset, "Reset controller on resume, cleanup or both");
 
 static bool i8042_direct;
 module_param_named(direct, i8042_direct, bool, 0);
@@ -404,8 +434,10 @@ static int i8042_start(struct serio *ser
 {
 	struct i8042_port *port = serio->port_data;
 
+	spin_lock_irq(&i8042_lock);
 	port->exists = true;
-	mb();
+	spin_unlock_irq(&i8042_lock);
+
 	return 0;
 }
 
@@ -418,16 +450,20 @@ static void i8042_stop(struct serio *ser
 {
 	struct i8042_port *port = serio->port_data;
 
+	spin_lock_irq(&i8042_lock);
 	port->exists = false;
+	port->serio = NULL;
+	spin_unlock_irq(&i8042_lock);
 
 	/*
+	 * We need to make sure that interrupt handler finishes using
+	 * our serio port before we return from this function.
 	 * We synchronize with both AUX and KBD IRQs because there is
 	 * a (very unlikely) chance that AUX IRQ is raised for KBD port
 	 * and vice versa.
 	 */
 	synchronize_irq(I8042_AUX_IRQ);
 	synchronize_irq(I8042_KBD_IRQ);
-	port->serio = NULL;
 }
 
 /*
@@ -544,7 +580,7 @@ static irqreturn_t i8042_interrupt(int i
 
 	spin_unlock_irqrestore(&i8042_lock, flags);
 
-	if (likely(port->exists && !filtered))
+	if (likely(serio && !filtered))
 		serio_interrupt(serio, data, dfl);
 
  out:
@@ -1019,7 +1055,7 @@ static int i8042_controller_init(void)
  * Reset the controller and reset CRT to the original value set by BIOS.
  */
 
-static void i8042_controller_reset(bool force_reset)
+static void i8042_controller_reset(bool s2r_wants_reset)
 {
 	i8042_flush();
 
@@ -1044,8 +1080,10 @@ static void i8042_controller_reset(bool
  * Reset the controller if requested.
  */
 
-	if (i8042_reset || force_reset)
+	if (i8042_reset == I8042_RESET_ALWAYS ||
+	    (i8042_reset == I8042_RESET_ON_S2RAM && s2r_wants_reset)) {
 		i8042_controller_selftest();
+	}
 
 /*
  * Restore the original control register setting.
@@ -1110,7 +1148,7 @@ static void i8042_dritek_enable(void)
  * before suspending.
  */
 
-static int i8042_controller_resume(bool force_reset)
+static int i8042_controller_resume(bool s2r_wants_reset)
 {
 	int error;
 
@@ -1118,7 +1156,8 @@ static int i8042_controller_resume(bool
 	if (error)
 		return error;
 
-	if (i8042_reset || force_reset) {
+	if (i8042_reset == I8042_RESET_ALWAYS ||
+	    (i8042_reset == I8042_RESET_ON_S2RAM && s2r_wants_reset)) {
 		error = i8042_controller_selftest();
 		if (error)
 			return error;
@@ -1195,7 +1234,7 @@ static int i8042_pm_resume_noirq(struct
 
 static int i8042_pm_resume(struct device *dev)
 {
-	bool force_reset;
+	bool want_reset;
 	int i;
 
 	for (i = 0; i < I8042_NUM_PORTS; i++) {
@@ -1218,9 +1257,9 @@ static int i8042_pm_resume(struct device
 	 * off control to the platform firmware, otherwise we can simply restore
 	 * the mode.
 	 */
-	force_reset = pm_resume_via_firmware();
+	want_reset = pm_resume_via_firmware();
 
-	return i8042_controller_resume(force_reset);
+	return i8042_controller_resume(want_reset);
 }
 
 static int i8042_pm_thaw(struct device *dev)
@@ -1277,6 +1316,7 @@ static int __init i8042_create_kbd_port(
 	serio->start		= i8042_start;
 	serio->stop		= i8042_stop;
 	serio->close		= i8042_port_close;
+	serio->ps2_cmd_mutex	= &i8042_mutex;
 	serio->port_data	= port;
 	serio->dev.parent	= &i8042_platform_device->dev;
 	strlcpy(serio->name, "i8042 KBD port", sizeof(serio->name));
@@ -1304,6 +1344,7 @@ static int __init i8042_create_aux_port(
 	serio->write		= i8042_aux_write;
 	serio->start		= i8042_start;
 	serio->stop		= i8042_stop;
+	serio->ps2_cmd_mutex	= &i8042_mutex;
 	serio->port_data	= port;
 	serio->dev.parent	= &i8042_platform_device->dev;
 	if (idx < 0) {
@@ -1373,21 +1414,6 @@ static void i8042_unregister_ports(void)
 	}
 }
 
-/*
- * Checks whether port belongs to i8042 controller.
- */
-bool i8042_check_port_owner(const struct serio *port)
-{
-	int i;
-
-	for (i = 0; i < I8042_NUM_PORTS; i++)
-		if (i8042_ports[i].serio == port)
-			return true;
-
-	return false;
-}
-EXPORT_SYMBOL(i8042_check_port_owner);
-
 static void i8042_free_irqs(void)
 {
 	if (i8042_aux_irq_registered)
@@ -1495,7 +1521,7 @@ static int __init i8042_probe(struct pla
 
 	i8042_platform_device = dev;
 
-	if (i8042_reset) {
+	if (i8042_reset == I8042_RESET_ALWAYS) {
 		error = i8042_controller_selftest();
 		if (error)
 			return error;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/input/serio/i8042-io.h linux-libre-4.4.107-gnu/drivers/input/serio/i8042-io.h
--- linux-libre-4.4-gnu/drivers/input/serio/i8042-io.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/input/serio/i8042-io.h	2017-12-20 04:05:01.000000000 -0500
@@ -81,7 +81,7 @@ static inline int i8042_platform_init(vo
 		return -EBUSY;
 #endif
 
-	i8042_reset = 1;
+	i8042_reset = I8042_RESET_ALWAYS;
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/input/serio/i8042-ip22io.h linux-libre-4.4.107-gnu/drivers/input/serio/i8042-ip22io.h
--- linux-libre-4.4-gnu/drivers/input/serio/i8042-ip22io.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/input/serio/i8042-ip22io.h	2017-12-20 04:05:01.000000000 -0500
@@ -61,7 +61,7 @@ static inline int i8042_platform_init(vo
 		return -EBUSY;
 #endif
 
-	i8042_reset = 1;
+	i8042_reset = I8042_RESET_ALWAYS;
 
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/input/serio/i8042-ppcio.h linux-libre-4.4.107-gnu/drivers/input/serio/i8042-ppcio.h
--- linux-libre-4.4-gnu/drivers/input/serio/i8042-ppcio.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/input/serio/i8042-ppcio.h	2017-12-20 04:05:01.000000000 -0500
@@ -44,7 +44,7 @@ static inline void i8042_write_command(i
 
 static inline int i8042_platform_init(void)
 {
-	i8042_reset = 1;
+	i8042_reset = I8042_RESET_ALWAYS;
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/input/serio/i8042-sparcio.h linux-libre-4.4.107-gnu/drivers/input/serio/i8042-sparcio.h
--- linux-libre-4.4-gnu/drivers/input/serio/i8042-sparcio.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/input/serio/i8042-sparcio.h	2017-12-20 04:05:01.000000000 -0500
@@ -130,7 +130,7 @@ static int __init i8042_platform_init(vo
 		}
 	}
 
-	i8042_reset = 1;
+	i8042_reset = I8042_RESET_ALWAYS;
 
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/input/serio/i8042-unicore32io.h linux-libre-4.4.107-gnu/drivers/input/serio/i8042-unicore32io.h
--- linux-libre-4.4-gnu/drivers/input/serio/i8042-unicore32io.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/input/serio/i8042-unicore32io.h	2017-12-20 04:05:01.000000000 -0500
@@ -61,7 +61,7 @@ static inline int i8042_platform_init(vo
 	if (!request_mem_region(I8042_REGION_START, I8042_REGION_SIZE, "i8042"))
 		return -EBUSY;
 
-	i8042_reset = 1;
+	i8042_reset = I8042_RESET_ALWAYS;
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/input/serio/i8042-x86ia64io.h linux-libre-4.4.107-gnu/drivers/input/serio/i8042-x86ia64io.h
--- linux-libre-4.4-gnu/drivers/input/serio/i8042-x86ia64io.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/input/serio/i8042-x86ia64io.h	2017-12-20 04:05:01.000000000 -0500
@@ -120,6 +120,13 @@ static const struct dmi_system_id __init
 		},
 	},
 	{
+		/* Dell Embedded Box PC 3000 */
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Embedded Box PC 3000"),
+		},
+	},
+	{
 		/* OQO Model 01 */
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "OQO"),
@@ -211,6 +218,12 @@ static const struct dmi_system_id __init
 			DMI_MATCH(DMI_PRODUCT_VERSION, "Rev 1"),
 		},
 	},
+	{
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "PEGATRON CORPORATION"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "C15B"),
+		},
+	},
 	{ }
 };
 
@@ -258,6 +271,13 @@ static const struct dmi_system_id __init
 		},
 	},
 	{
+		/* Fujitsu Lifebook U745 */
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK U745"),
+		},
+	},
+	{
 		/* Fujitsu T70H */
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
@@ -500,9 +520,100 @@ static const struct dmi_system_id __init
 			DMI_MATCH(DMI_PRODUCT_NAME, "IC4I"),
 		},
 	},
+	{
+		/* TUXEDO BU1406 */
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Notebook"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "N24_25BU"),
+		},
+	},
 	{ }
 };
 
+/*
+ * On some Asus laptops, just running self tests cause problems.
+ */
+static const struct dmi_system_id i8042_dmi_noselftest_table[] = {
+	{
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "A455LD"),
+		},
+	},
+	{
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "K401LB"),
+		},
+	},
+	{
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "K501LB"),
+		},
+	},
+	{
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "K501LX"),
+		},
+	},
+	{
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "R409L"),
+		},
+	},
+	{
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "V502LX"),
+		},
+	},
+	{
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "X302LA"),
+		},
+	},
+	{
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "X450LCP"),
+		},
+	},
+	{
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "X450LD"),
+		},
+	},
+	{
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "X455LAB"),
+		},
+	},
+	{
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "X455LDB"),
+		},
+	},
+	{
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "X455LF"),
+		},
+	},
+	{
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Z450LA"),
+		},
+	},
+	{ }
+};
 static const struct dmi_system_id __initconst i8042_dmi_reset_table[] = {
 	{
 		/* MSI Wind U-100 */
@@ -581,6 +692,13 @@ static const struct dmi_system_id __init
 			DMI_MATCH(DMI_PRODUCT_NAME, "20046"),
 		},
 	},
+	{
+		/* Clevo P650RS, 650RP6, Sager NP8152-S, and others */
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Notebook"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "P65xRP"),
+		},
+	},
 	{ }
 };
 
@@ -677,6 +795,13 @@ static const struct dmi_system_id __init
 			DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK U574"),
 		},
 	},
+	{
+		/* Fujitsu UH554 laptop */
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK UH544"),
+		},
+	},
 	{ }
 };
 
@@ -786,6 +911,20 @@ static const struct dmi_system_id __init
 			DMI_MATCH(DMI_PRODUCT_NAME, "P34"),
 		},
 	},
+	{
+		/* Gigabyte P57 - Elantech touchpad */
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "P57"),
+		},
+	},
+	{
+		/* Schenker XMG C504 - Elantech touchpad */
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "XMG"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "C504"),
+		},
+	},
 	{ }
 };
 
@@ -1065,12 +1204,18 @@ static int __init i8042_platform_init(vo
 		return retval;
 
 #if defined(__ia64__)
-        i8042_reset = true;
+        i8042_reset = I8042_RESET_ALWAYS;
 #endif
 
 #ifdef CONFIG_X86
-	if (dmi_check_system(i8042_dmi_reset_table))
-		i8042_reset = true;
+	/* Honor module parameter when value is not default */
+	if (i8042_reset == I8042_RESET_DEFAULT) {
+		if (dmi_check_system(i8042_dmi_reset_table))
+			i8042_reset = I8042_RESET_ALWAYS;
+
+		if (dmi_check_system(i8042_dmi_noselftest_table))
+			i8042_reset = I8042_RESET_NEVER;
+	}
 
 	if (dmi_check_system(i8042_dmi_noloop_table))
 		i8042_noloop = true;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/input/serio/libps2.c linux-libre-4.4.107-gnu/drivers/input/serio/libps2.c
--- linux-libre-4.4-gnu/drivers/input/serio/libps2.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/input/serio/libps2.c	2017-12-20 04:05:01.000000000 -0500
@@ -56,19 +56,17 @@ EXPORT_SYMBOL(ps2_sendbyte);
 
 void ps2_begin_command(struct ps2dev *ps2dev)
 {
-	mutex_lock(&ps2dev->cmd_mutex);
+	struct mutex *m = ps2dev->serio->ps2_cmd_mutex ?: &ps2dev->cmd_mutex;
 
-	if (i8042_check_port_owner(ps2dev->serio))
-		i8042_lock_chip();
+	mutex_lock(m);
 }
 EXPORT_SYMBOL(ps2_begin_command);
 
 void ps2_end_command(struct ps2dev *ps2dev)
 {
-	if (i8042_check_port_owner(ps2dev->serio))
-		i8042_unlock_chip();
+	struct mutex *m = ps2dev->serio->ps2_cmd_mutex ?: &ps2dev->cmd_mutex;
 
-	mutex_unlock(&ps2dev->cmd_mutex);
+	mutex_unlock(m);
 }
 EXPORT_SYMBOL(ps2_end_command);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/input/tablet/gtco.c linux-libre-4.4.107-gnu/drivers/input/tablet/gtco.c
--- linux-libre-4.4-gnu/drivers/input/tablet/gtco.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/input/tablet/gtco.c	2017-12-20 04:05:01.000000000 -0500
@@ -231,13 +231,17 @@ static void parse_hid_report_descriptor(
 
 	/* Walk  this report and pull out the info we need */
 	while (i < length) {
-		prefix = report[i];
-
-		/* Skip over prefix */
-		i++;
+		prefix = report[i++];
 
 		/* Determine data size and save the data in the proper variable */
-		size = PREF_SIZE(prefix);
+		size = (1U << PREF_SIZE(prefix)) >> 1;
+		if (i + size > length) {
+			dev_err(ddev,
+				"Not enough data (need %d, have %d)\n",
+				i + size, length);
+			break;
+		}
+
 		switch (size) {
 		case 1:
 			data = report[i];
@@ -245,8 +249,7 @@ static void parse_hid_report_descriptor(
 		case 2:
 			data16 = get_unaligned_le16(&report[i]);
 			break;
-		case 3:
-			size = 4;
+		case 4:
 			data32 = get_unaligned_le32(&report[i]);
 			break;
 		}
@@ -858,6 +861,14 @@ static int gtco_probe(struct usb_interfa
 		goto err_free_buf;
 	}
 
+	/* Sanity check that a device has an endpoint */
+	if (usbinterface->altsetting[0].desc.bNumEndpoints < 1) {
+		dev_err(&usbinterface->dev,
+			"Invalid number of endpoints\n");
+		error = -EINVAL;
+		goto err_free_urb;
+	}
+
 	/*
 	 * The endpoint is always altsetting 0, we know this since we know
 	 * this device only has one interrupt endpoint
@@ -879,7 +890,7 @@ static int gtco_probe(struct usb_interfa
 	 * HID report descriptor
 	 */
 	if (usb_get_extra_descriptor(usbinterface->cur_altsetting,
-				     HID_DEVICE_TYPE, &hid_desc) != 0){
+				     HID_DEVICE_TYPE, &hid_desc) != 0) {
 		dev_err(&usbinterface->dev,
 			"Can't retrieve exta USB descriptor to get hid report descriptor length\n");
 		error = -EIO;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/input/tablet/hanwang.c linux-libre-4.4.107-gnu/drivers/input/tablet/hanwang.c
--- linux-libre-4.4-gnu/drivers/input/tablet/hanwang.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/input/tablet/hanwang.c	2017-12-20 04:05:01.000000000 -0500
@@ -340,6 +340,9 @@ static int hanwang_probe(struct usb_inte
 	int error;
 	int i;
 
+	if (intf->cur_altsetting->desc.bNumEndpoints < 1)
+		return -ENODEV;
+
 	hanwang = kzalloc(sizeof(struct hanwang), GFP_KERNEL);
 	input_dev = input_allocate_device();
 	if (!hanwang || !input_dev) {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/input/tablet/kbtab.c linux-libre-4.4.107-gnu/drivers/input/tablet/kbtab.c
--- linux-libre-4.4-gnu/drivers/input/tablet/kbtab.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/input/tablet/kbtab.c	2017-12-20 04:05:01.000000000 -0500
@@ -122,6 +122,9 @@ static int kbtab_probe(struct usb_interf
 	struct input_dev *input_dev;
 	int error = -ENOMEM;
 
+	if (intf->cur_altsetting->desc.bNumEndpoints < 1)
+		return -ENODEV;
+
 	kbtab = kzalloc(sizeof(struct kbtab), GFP_KERNEL);
 	input_dev = input_allocate_device();
 	if (!kbtab || !input_dev)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/input/touchscreen/elants_i2c.c linux-libre-4.4.107-gnu/drivers/input/touchscreen/elants_i2c.c
--- linux-libre-4.4-gnu/drivers/input/touchscreen/elants_i2c.c	2016-01-10 21:13:09.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/input/touchscreen/elants_i2c.c	2017-12-20 11:41:17.000000000 -0500
@@ -905,9 +905,9 @@ static irqreturn_t elants_i2c_irq(int ir
 
 		case QUEUE_HEADER_NORMAL:
 			report_count = ts->buf[FW_HDR_COUNT];
-			if (report_count > 3) {
+			if (report_count == 0 || report_count > 3) {
 				dev_err(&client->dev,
-					"too large report count: %*ph\n",
+					"bad report count: %*ph\n",
 					HEADER_SIZE, ts->buf);
 				break;
 			}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/input/touchscreen/sur40.c linux-libre-4.4.107-gnu/drivers/input/touchscreen/sur40.c
--- linux-libre-4.4-gnu/drivers/input/touchscreen/sur40.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/input/touchscreen/sur40.c	2017-12-20 04:05:01.000000000 -0500
@@ -126,7 +126,7 @@ struct sur40_image_header {
 #define VIDEO_PACKET_SIZE  16384
 
 /* polling interval (ms) */
-#define POLL_INTERVAL 4
+#define POLL_INTERVAL 1
 
 /* maximum number of contacts FIXME: this is a guess? */
 #define MAX_CONTACTS 64
@@ -441,7 +441,7 @@ static void sur40_process_video(struct s
 
 	/* return error if streaming was stopped in the meantime */
 	if (sur40->sequence == -1)
-		goto err_poll;
+		return;
 
 	/* mark as finished */
 	v4l2_get_timestamp(&new_buf->vb.timestamp);
@@ -500,6 +500,9 @@ static int sur40_probe(struct usb_interf
 	if (iface_desc->desc.bInterfaceClass != 0xFF)
 		return -ENODEV;
 
+	if (iface_desc->desc.bNumEndpoints < 5)
+		return -ENODEV;
+
 	/* Use endpoint #4 (0x86). */
 	endpoint = &iface_desc->endpoint[4].desc;
 	if (endpoint->bEndpointAddress != TOUCH_ENDPOINT)
@@ -730,6 +733,7 @@ static int sur40_start_streaming(struct
 static void sur40_stop_streaming(struct vb2_queue *vq)
 {
 	struct sur40_state *sur40 = vb2_get_drv_priv(vq);
+	vb2_wait_for_all_buffers(vq);
 	sur40->sequence = -1;
 
 	/* Release all active buffers */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/input/touchscreen/tsc2004.c linux-libre-4.4.107-gnu/drivers/input/touchscreen/tsc2004.c
--- linux-libre-4.4-gnu/drivers/input/touchscreen/tsc2004.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/input/touchscreen/tsc2004.c	2017-12-20 04:05:01.000000000 -0500
@@ -22,6 +22,11 @@
 #include <linux/regmap.h>
 #include "tsc200x-core.h"
 
+static const struct input_id tsc2004_input_id = {
+	.bustype = BUS_I2C,
+	.product = 2004,
+};
+
 static int tsc2004_cmd(struct device *dev, u8 cmd)
 {
 	u8 tx = TSC200X_CMD | TSC200X_CMD_12BIT | cmd;
@@ -42,7 +47,7 @@ static int tsc2004_probe(struct i2c_clie
 			 const struct i2c_device_id *id)
 
 {
-	return tsc200x_probe(&i2c->dev, i2c->irq, BUS_I2C,
+	return tsc200x_probe(&i2c->dev, i2c->irq, &tsc2004_input_id,
 			     devm_regmap_init_i2c(i2c, &tsc200x_regmap_config),
 			     tsc2004_cmd);
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/input/touchscreen/tsc2005.c linux-libre-4.4.107-gnu/drivers/input/touchscreen/tsc2005.c
--- linux-libre-4.4-gnu/drivers/input/touchscreen/tsc2005.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/input/touchscreen/tsc2005.c	2017-12-20 04:05:01.000000000 -0500
@@ -24,6 +24,11 @@
 #include <linux/regmap.h>
 #include "tsc200x-core.h"
 
+static const struct input_id tsc2005_input_id = {
+	.bustype = BUS_SPI,
+	.product = 2005,
+};
+
 static int tsc2005_cmd(struct device *dev, u8 cmd)
 {
 	u8 tx = TSC200X_CMD | TSC200X_CMD_12BIT | cmd;
@@ -62,7 +67,7 @@ static int tsc2005_probe(struct spi_devi
 	if (error)
 		return error;
 
-	return tsc200x_probe(&spi->dev, spi->irq, BUS_SPI,
+	return tsc200x_probe(&spi->dev, spi->irq, &tsc2005_input_id,
 			     devm_regmap_init_spi(spi, &tsc200x_regmap_config),
 			     tsc2005_cmd);
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/input/touchscreen/tsc200x-core.c linux-libre-4.4.107-gnu/drivers/input/touchscreen/tsc200x-core.c
--- linux-libre-4.4-gnu/drivers/input/touchscreen/tsc200x-core.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/input/touchscreen/tsc200x-core.c	2017-12-20 04:05:01.000000000 -0500
@@ -450,7 +450,7 @@ static void tsc200x_close(struct input_d
 	mutex_unlock(&ts->mutex);
 }
 
-int tsc200x_probe(struct device *dev, int irq, __u16 bustype,
+int tsc200x_probe(struct device *dev, int irq, const struct input_id *tsc_id,
 		  struct regmap *regmap,
 		  int (*tsc200x_cmd)(struct device *dev, u8 cmd))
 {
@@ -547,9 +547,18 @@ int tsc200x_probe(struct device *dev, in
 	snprintf(ts->phys, sizeof(ts->phys),
 		 "%s/input-ts", dev_name(dev));
 
-	input_dev->name = "TSC200X touchscreen";
+	if (tsc_id->product == 2004) {
+		input_dev->name = "TSC200X touchscreen";
+	} else {
+		input_dev->name = devm_kasprintf(dev, GFP_KERNEL,
+						 "TSC%04d touchscreen",
+						 tsc_id->product);
+		if (!input_dev->name)
+			return -ENOMEM;
+	}
+
 	input_dev->phys = ts->phys;
-	input_dev->id.bustype = bustype;
+	input_dev->id = *tsc_id;
 	input_dev->dev.parent = dev;
 	input_dev->evbit[0] = BIT(EV_ABS) | BIT(EV_KEY);
 	input_dev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/input/touchscreen/tsc200x-core.h linux-libre-4.4.107-gnu/drivers/input/touchscreen/tsc200x-core.h
--- linux-libre-4.4-gnu/drivers/input/touchscreen/tsc200x-core.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/input/touchscreen/tsc200x-core.h	2017-12-20 04:05:01.000000000 -0500
@@ -70,7 +70,7 @@
 extern const struct regmap_config tsc200x_regmap_config;
 extern const struct dev_pm_ops tsc200x_pm_ops;
 
-int tsc200x_probe(struct device *dev, int irq, __u16 bustype,
+int tsc200x_probe(struct device *dev, int irq, const struct input_id *tsc_id,
 		  struct regmap *regmap,
 		  int (*tsc200x_cmd)(struct device *dev, u8 cmd));
 int tsc200x_remove(struct device *dev);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/input/touchscreen/wacom_w8001.c linux-libre-4.4.107-gnu/drivers/input/touchscreen/wacom_w8001.c
--- linux-libre-4.4-gnu/drivers/input/touchscreen/wacom_w8001.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/input/touchscreen/wacom_w8001.c	2017-12-20 04:05:01.000000000 -0500
@@ -27,7 +27,7 @@ MODULE_AUTHOR("Jaya Kumar <jayakumar.lkm
 MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_LICENSE("GPL");
 
-#define W8001_MAX_LENGTH	11
+#define W8001_MAX_LENGTH	13
 #define W8001_LEAD_MASK		0x80
 #define W8001_LEAD_BYTE		0x80
 #define W8001_TAB_MASK		0x40
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/input/touchscreen/zforce_ts.c linux-libre-4.4.107-gnu/drivers/input/touchscreen/zforce_ts.c
--- linux-libre-4.4-gnu/drivers/input/touchscreen/zforce_ts.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/input/touchscreen/zforce_ts.c	2017-12-20 04:05:01.000000000 -0500
@@ -370,8 +370,8 @@ static int zforce_touch_event(struct zfo
 			point.coord_x = point.coord_y = 0;
 		}
 
-		point.state = payload[9 * i + 5] & 0x03;
-		point.id = (payload[9 * i + 5] & 0xfc) >> 2;
+		point.state = payload[9 * i + 5] & 0x0f;
+		point.id = (payload[9 * i + 5] & 0xf0) >> 4;
 
 		/* determine touch major, minor and orientation */
 		point.area_major = max(payload[9 * i + 6],
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/iommu/amd_iommu.c linux-libre-4.4.107-gnu/drivers/iommu/amd_iommu.c
--- linux-libre-4.4-gnu/drivers/iommu/amd_iommu.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/iommu/amd_iommu.c	2017-12-20 04:05:01.000000000 -0500
@@ -91,6 +91,7 @@ struct iommu_dev_data {
 	struct list_head dev_data_list;	  /* For global dev_data_list */
 	struct protection_domain *domain; /* Domain the device is bound to */
 	u16 devid;			  /* PCI Device ID */
+	u16 alias;			  /* Alias Device ID */
 	bool iommu_v2;			  /* Device can make use of IOMMUv2 */
 	bool passthrough;		  /* Device is identity mapped */
 	struct {
@@ -125,6 +126,13 @@ static struct protection_domain *to_pdom
 	return container_of(dom, struct protection_domain, domain);
 }
 
+static inline u16 get_device_id(struct device *dev)
+{
+	struct pci_dev *pdev = to_pci_dev(dev);
+
+	return PCI_DEVID(pdev->bus->number, pdev->devfn);
+}
+
 static struct iommu_dev_data *alloc_dev_data(u16 devid)
 {
 	struct iommu_dev_data *dev_data;
@@ -162,6 +170,68 @@ out_unlock:
 	return dev_data;
 }
 
+static int __last_alias(struct pci_dev *pdev, u16 alias, void *data)
+{
+	*(u16 *)data = alias;
+	return 0;
+}
+
+static u16 get_alias(struct device *dev)
+{
+	struct pci_dev *pdev = to_pci_dev(dev);
+	u16 devid, ivrs_alias, pci_alias;
+
+	devid = get_device_id(dev);
+	ivrs_alias = amd_iommu_alias_table[devid];
+	pci_for_each_dma_alias(pdev, __last_alias, &pci_alias);
+
+	if (ivrs_alias == pci_alias)
+		return ivrs_alias;
+
+	/*
+	 * DMA alias showdown
+	 *
+	 * The IVRS is fairly reliable in telling us about aliases, but it
+	 * can't know about every screwy device.  If we don't have an IVRS
+	 * reported alias, use the PCI reported alias.  In that case we may
+	 * still need to initialize the rlookup and dev_table entries if the
+	 * alias is to a non-existent device.
+	 */
+	if (ivrs_alias == devid) {
+		if (!amd_iommu_rlookup_table[pci_alias]) {
+			amd_iommu_rlookup_table[pci_alias] =
+				amd_iommu_rlookup_table[devid];
+			memcpy(amd_iommu_dev_table[pci_alias].data,
+			       amd_iommu_dev_table[devid].data,
+			       sizeof(amd_iommu_dev_table[pci_alias].data));
+		}
+
+		return pci_alias;
+	}
+
+	pr_info("AMD-Vi: Using IVRS reported alias %02x:%02x.%d "
+		"for device %s[%04x:%04x], kernel reported alias "
+		"%02x:%02x.%d\n", PCI_BUS_NUM(ivrs_alias), PCI_SLOT(ivrs_alias),
+		PCI_FUNC(ivrs_alias), dev_name(dev), pdev->vendor, pdev->device,
+		PCI_BUS_NUM(pci_alias), PCI_SLOT(pci_alias),
+		PCI_FUNC(pci_alias));
+
+	/*
+	 * If we don't have a PCI DMA alias and the IVRS alias is on the same
+	 * bus, then the IVRS table may know about a quirk that we don't.
+	 */
+	if (pci_alias == devid &&
+	    PCI_BUS_NUM(ivrs_alias) == pdev->bus->number) {
+		pdev->dev_flags |= PCI_DEV_FLAGS_DMA_ALIAS_DEVFN;
+		pdev->dma_alias_devfn = ivrs_alias & 0xff;
+		pr_info("AMD-Vi: Added PCI DMA alias %02x.%d for %s\n",
+			PCI_SLOT(ivrs_alias), PCI_FUNC(ivrs_alias),
+			dev_name(dev));
+	}
+
+	return ivrs_alias;
+}
+
 static struct iommu_dev_data *find_dev_data(u16 devid)
 {
 	struct iommu_dev_data *dev_data;
@@ -174,13 +244,6 @@ static struct iommu_dev_data *find_dev_d
 	return dev_data;
 }
 
-static inline u16 get_device_id(struct device *dev)
-{
-	struct pci_dev *pdev = to_pci_dev(dev);
-
-	return PCI_DEVID(pdev->bus->number, pdev->devfn);
-}
-
 static struct iommu_dev_data *get_dev_data(struct device *dev)
 {
 	return dev->archdata.iommu;
@@ -289,9 +352,11 @@ static void init_iommu_group(struct devi
 	if (!domain)
 		goto out;
 
-	dma_domain = to_pdomain(domain)->priv;
+	if (to_pdomain(domain)->flags == PD_DMA_OPS_MASK) {
+		dma_domain = to_pdomain(domain)->priv;
+		init_unity_mappings_for_device(dev, dma_domain);
+	}
 
-	init_unity_mappings_for_device(dev, dma_domain);
 out:
 	iommu_group_put(group);
 }
@@ -308,6 +373,8 @@ static int iommu_init_device(struct devi
 	if (!dev_data)
 		return -ENOMEM;
 
+	dev_data->alias = get_alias(dev);
+
 	if (pci_iommuv2_capable(pdev)) {
 		struct amd_iommu *iommu;
 
@@ -328,7 +395,7 @@ static void iommu_ignore_device(struct d
 	u16 devid, alias;
 
 	devid = get_device_id(dev);
-	alias = amd_iommu_alias_table[devid];
+	alias = get_alias(dev);
 
 	memset(&amd_iommu_dev_table[devid], 0, sizeof(struct dev_table_entry));
 	memset(&amd_iommu_dev_table[alias], 0, sizeof(struct dev_table_entry));
@@ -859,7 +926,7 @@ again:
 	next_tail = (tail + sizeof(*cmd)) % CMD_BUFFER_SIZE;
 	left      = (head - next_tail) % CMD_BUFFER_SIZE;
 
-	if (left <= 2) {
+	if (left <= 0x20) {
 		struct iommu_cmd sync_cmd;
 		volatile u64 sem = 0;
 		int ret;
@@ -1017,7 +1084,7 @@ static int device_flush_dte(struct iommu
 	int ret;
 
 	iommu = amd_iommu_rlookup_table[dev_data->devid];
-	alias = amd_iommu_alias_table[dev_data->devid];
+	alias = dev_data->alias;
 
 	ret = iommu_flush_dte(iommu, dev_data->devid);
 	if (!ret && alias != dev_data->devid)
@@ -1766,6 +1833,9 @@ static void dma_ops_domain_free(struct d
 		kfree(dom->aperture[i]);
 	}
 
+	if (dom->domain.id)
+		domain_id_free(dom->domain.id);
+
 	kfree(dom);
 }
 
@@ -1891,7 +1961,7 @@ static void do_attach(struct iommu_dev_d
 	bool ats;
 
 	iommu = amd_iommu_rlookup_table[dev_data->devid];
-	alias = amd_iommu_alias_table[dev_data->devid];
+	alias = dev_data->alias;
 	ats   = dev_data->ats.enabled;
 
 	/* Update data structures */
@@ -1905,7 +1975,7 @@ static void do_attach(struct iommu_dev_d
 	/* Update device table */
 	set_dte_entry(dev_data->devid, domain, ats);
 	if (alias != dev_data->devid)
-		set_dte_entry(dev_data->devid, domain, ats);
+		set_dte_entry(alias, domain, ats);
 
 	device_flush_dte(dev_data);
 }
@@ -1925,7 +1995,7 @@ static void do_detach(struct iommu_dev_d
 		return;
 
 	iommu = amd_iommu_rlookup_table[dev_data->devid];
-	alias = amd_iommu_alias_table[dev_data->devid];
+	alias = dev_data->alias;
 
 	/* decrease reference counters */
 	dev_data->domain->dev_iommu[iommu->index] -= 1;
@@ -2257,8 +2327,15 @@ static void update_device_table(struct p
 {
 	struct iommu_dev_data *dev_data;
 
-	list_for_each_entry(dev_data, &domain->dev_list, list)
+	list_for_each_entry(dev_data, &domain->dev_list, list) {
 		set_dte_entry(dev_data->devid, domain, dev_data->ats.enabled);
+
+		if (dev_data->devid == dev_data->alias)
+			continue;
+
+		/* There is an alias, update device table entry for it */
+		set_dte_entry(dev_data->alias, domain, dev_data->ats.enabled);
+	}
 }
 
 static void update_domain(struct protection_domain *domain)
@@ -2905,9 +2982,7 @@ static struct iommu_domain *amd_iommu_do
 static void amd_iommu_domain_free(struct iommu_domain *dom)
 {
 	struct protection_domain *domain;
-
-	if (!dom)
-		return;
+	struct dma_ops_domain *dma_dom;
 
 	domain = to_pdomain(dom);
 
@@ -2916,13 +2991,24 @@ static void amd_iommu_domain_free(struct
 
 	BUG_ON(domain->dev_cnt != 0);
 
-	if (domain->mode != PAGE_MODE_NONE)
-		free_pagetable(domain);
+	if (!dom)
+		return;
 
-	if (domain->flags & PD_IOMMUV2_MASK)
-		free_gcr3_table(domain);
+	switch (dom->type) {
+	case IOMMU_DOMAIN_DMA:
+		dma_dom = domain->priv;
+		dma_ops_domain_free(dma_dom);
+		break;
+	default:
+		if (domain->mode != PAGE_MODE_NONE)
+			free_pagetable(domain);
 
-	protection_domain_free(domain);
+		if (domain->flags & PD_IOMMUV2_MASK)
+			free_gcr3_table(domain);
+
+		protection_domain_free(domain);
+		break;
+	}
 }
 
 static void amd_iommu_detach_device(struct iommu_domain *dom,
@@ -3010,6 +3096,7 @@ static size_t amd_iommu_unmap(struct iom
 	mutex_unlock(&domain->api_lock);
 
 	domain_flush_tlb_pde(domain);
+	domain_flush_complete(domain);
 
 	return unmap_size;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/iommu/amd_iommu_init.c linux-libre-4.4.107-gnu/drivers/iommu/amd_iommu_init.c
--- linux-libre-4.4-gnu/drivers/iommu/amd_iommu_init.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/iommu/amd_iommu_init.c	2017-12-20 04:05:01.000000000 -0500
@@ -228,6 +228,10 @@ static int amd_iommu_enable_interrupts(v
 static int __init iommu_go_to_state(enum iommu_init_state state);
 static void init_device_table_dma(void);
 
+static int iommu_pc_get_set_reg_val(struct amd_iommu *iommu,
+				    u8 bank, u8 cntr, u8 fxn,
+				    u64 *value, bool is_write);
+
 static inline void update_last_devid(u16 devid)
 {
 	if (devid > amd_iommu_last_bdf)
@@ -1016,6 +1020,34 @@ static void amd_iommu_erratum_746_workar
 }
 
 /*
+ * Family15h Model 30h-3fh (IOMMU Mishandles ATS Write Permission)
+ * Workaround:
+ *     BIOS should enable ATS write permission check by setting
+ *     L2_DEBUG_3[AtsIgnoreIWDis](D0F2xF4_x47[0]) = 1b
+ */
+static void amd_iommu_ats_write_check_workaround(struct amd_iommu *iommu)
+{
+	u32 value;
+
+	if ((boot_cpu_data.x86 != 0x15) ||
+	    (boot_cpu_data.x86_model < 0x30) ||
+	    (boot_cpu_data.x86_model > 0x3f))
+		return;
+
+	/* Test L2_DEBUG_3[AtsIgnoreIWDis] == 1 */
+	value = iommu_read_l2(iommu, 0x47);
+
+	if (value & BIT(0))
+		return;
+
+	/* Set L2_DEBUG_3[AtsIgnoreIWDis] = 1 */
+	iommu_write_l2(iommu, 0x47, value | BIT(0));
+
+	pr_info("AMD-Vi: Applying ATS write check workaround for IOMMU at %s\n",
+		dev_name(&iommu->dev->dev));
+}
+
+/*
  * This function clues the initialization function for one IOMMU
  * together and also allocates the command buffer and programs the
  * hardware. It does NOT enable the IOMMU. This is done afterwards.
@@ -1142,8 +1174,8 @@ static void init_iommu_perf_ctr(struct a
 	amd_iommu_pc_present = true;
 
 	/* Check if the performance counters can be written to */
-	if ((0 != amd_iommu_pc_get_set_reg_val(0, 0, 0, 0, &val, true)) ||
-	    (0 != amd_iommu_pc_get_set_reg_val(0, 0, 0, 0, &val2, false)) ||
+	if ((0 != iommu_pc_get_set_reg_val(iommu, 0, 0, 0, &val, true)) ||
+	    (0 != iommu_pc_get_set_reg_val(iommu, 0, 0, 0, &val2, false)) ||
 	    (val != val2)) {
 		pr_err("AMD-Vi: Unable to write to IOMMU perf counter.\n");
 		amd_iommu_pc_present = false;
@@ -1284,6 +1316,7 @@ static int iommu_init_pci(struct amd_iom
 	}
 
 	amd_iommu_erratum_746_workaround(iommu);
+	amd_iommu_ats_write_check_workaround(iommu);
 
 	iommu->iommu_dev = iommu_device_create(&iommu->dev->dev, iommu,
 					       amd_iommu_groups, "ivhd%d",
@@ -1330,13 +1363,23 @@ static int __init amd_iommu_init_pci(voi
 			break;
 	}
 
+	/*
+	 * Order is important here to make sure any unity map requirements are
+	 * fulfilled. The unity mappings are created and written to the device
+	 * table during the amd_iommu_init_api() call.
+	 *
+	 * After that we call init_device_table_dma() to make sure any
+	 * uninitialized DTE will block DMA, and in the end we flush the caches
+	 * of all IOMMUs to make sure the changes to the device table are
+	 * active.
+	 */
+	ret = amd_iommu_init_api();
+
 	init_device_table_dma();
 
 	for_each_iommu(iommu)
 		iommu_flush_all_caches(iommu);
 
-	ret = amd_iommu_init_api();
-
 	if (!ret)
 		print_iommu_info();
 
@@ -2283,22 +2326,15 @@ u8 amd_iommu_pc_get_max_counters(u16 dev
 }
 EXPORT_SYMBOL(amd_iommu_pc_get_max_counters);
 
-int amd_iommu_pc_get_set_reg_val(u16 devid, u8 bank, u8 cntr, u8 fxn,
+static int iommu_pc_get_set_reg_val(struct amd_iommu *iommu,
+				    u8 bank, u8 cntr, u8 fxn,
 				    u64 *value, bool is_write)
 {
-	struct amd_iommu *iommu;
 	u32 offset;
 	u32 max_offset_lim;
 
-	/* Make sure the IOMMU PC resource is available */
-	if (!amd_iommu_pc_present)
-		return -ENODEV;
-
-	/* Locate the iommu associated with the device ID */
-	iommu = amd_iommu_rlookup_table[devid];
-
 	/* Check for valid iommu and pc register indexing */
-	if (WARN_ON((iommu == NULL) || (fxn > 0x28) || (fxn & 7)))
+	if (WARN_ON((fxn > 0x28) || (fxn & 7)))
 		return -ENODEV;
 
 	offset = (u32)(((0x40|bank) << 12) | (cntr << 8) | fxn);
@@ -2322,3 +2358,16 @@ int amd_iommu_pc_get_set_reg_val(u16 dev
 	return 0;
 }
 EXPORT_SYMBOL(amd_iommu_pc_get_set_reg_val);
+
+int amd_iommu_pc_get_set_reg_val(u16 devid, u8 bank, u8 cntr, u8 fxn,
+				    u64 *value, bool is_write)
+{
+	struct amd_iommu *iommu = amd_iommu_rlookup_table[devid];
+
+	/* Make sure the IOMMU PC resource is available */
+	if (!amd_iommu_pc_present || iommu == NULL)
+		return -ENODEV;
+
+	return iommu_pc_get_set_reg_val(iommu, bank, cntr, fxn,
+					value, is_write);
+}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/iommu/amd_iommu_v2.c linux-libre-4.4.107-gnu/drivers/iommu/amd_iommu_v2.c
--- linux-libre-4.4-gnu/drivers/iommu/amd_iommu_v2.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/iommu/amd_iommu_v2.c	2017-12-20 04:05:01.000000000 -0500
@@ -699,9 +699,9 @@ out_clear_state:
 
 out_unregister:
 	mmu_notifier_unregister(&pasid_state->mn, mm);
+	mmput(mm);
 
 out_free:
-	mmput(mm);
 	free_pasid_state(pasid_state);
 
 out:
@@ -809,8 +809,10 @@ int amd_iommu_init_device(struct pci_dev
 		goto out_free_domain;
 
 	group = iommu_group_get(&pdev->dev);
-	if (!group)
+	if (!group) {
+		ret = -EINVAL;
 		goto out_free_domain;
+	}
 
 	ret = iommu_attach_group(dev_state->domain, group);
 	if (ret != 0)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/iommu/arm-smmu-v3.c linux-libre-4.4.107-gnu/drivers/iommu/arm-smmu-v3.c
--- linux-libre-4.4-gnu/drivers/iommu/arm-smmu-v3.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/iommu/arm-smmu-v3.c	2017-12-20 04:05:01.000000000 -0500
@@ -870,7 +870,7 @@ static void arm_smmu_cmdq_skip_err(struc
 	 * We may have concurrent producers, so we need to be careful
 	 * not to touch any of the shadow cmdq state.
 	 */
-	queue_read(cmd, Q_ENT(q, idx), q->ent_dwords);
+	queue_read(cmd, Q_ENT(q, cons), q->ent_dwords);
 	dev_err(smmu->dev, "skipping command in error state:\n");
 	for (i = 0; i < ARRAY_SIZE(cmd); ++i)
 		dev_err(smmu->dev, "\t0x%016llx\n", (unsigned long long)cmd[i]);
@@ -881,7 +881,7 @@ static void arm_smmu_cmdq_skip_err(struc
 		return;
 	}
 
-	queue_write(cmd, Q_ENT(q, idx), q->ent_dwords);
+	queue_write(Q_ENT(q, cons), cmd, q->ent_dwords);
 }
 
 static void arm_smmu_cmdq_issue_cmd(struct arm_smmu_device *smmu,
@@ -1025,18 +1025,16 @@ static void arm_smmu_write_strtab_ent(st
 		case STRTAB_STE_0_CFG_S2_TRANS:
 			ste_live = true;
 			break;
+		case STRTAB_STE_0_CFG_ABORT:
+			if (disable_bypass)
+				break;
 		default:
 			BUG(); /* STE corruption */
 		}
 	}
 
-	/* Nuke the existing Config, as we're going to rewrite it */
-	val &= ~(STRTAB_STE_0_CFG_MASK << STRTAB_STE_0_CFG_SHIFT);
-
-	if (ste->valid)
-		val |= STRTAB_STE_0_V;
-	else
-		val &= ~STRTAB_STE_0_V;
+	/* Nuke the existing STE_0 value, as we're going to rewrite it */
+	val = ste->valid ? STRTAB_STE_0_V : 0;
 
 	if (ste->bypass) {
 		val |= disable_bypass ? STRTAB_STE_0_CFG_ABORT
@@ -1065,7 +1063,6 @@ static void arm_smmu_write_strtab_ent(st
 		val |= (ste->s1_cfg->cdptr_dma & STRTAB_STE_0_S1CTXPTR_MASK
 		        << STRTAB_STE_0_S1CTXPTR_SHIFT) |
 			STRTAB_STE_0_CFG_S1_TRANS;
-
 	}
 
 	if (ste->s2_cfg) {
@@ -1919,6 +1916,7 @@ static struct iommu_ops arm_smmu_ops = {
 	.detach_dev		= arm_smmu_detach_dev,
 	.map			= arm_smmu_map,
 	.unmap			= arm_smmu_unmap,
+	.map_sg			= default_iommu_map_sg,
 	.iova_to_phys		= arm_smmu_iova_to_phys,
 	.add_device		= arm_smmu_add_device,
 	.remove_device		= arm_smmu_remove_device,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/iommu/dma-iommu.c linux-libre-4.4.107-gnu/drivers/iommu/dma-iommu.c
--- linux-libre-4.4-gnu/drivers/iommu/dma-iommu.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/iommu/dma-iommu.c	2017-12-20 04:05:01.000000000 -0500
@@ -68,7 +68,8 @@ void iommu_put_dma_cookie(struct iommu_d
 	if (!iovad)
 		return;
 
-	put_iova_domain(iovad);
+	if (iovad->granule)
+		put_iova_domain(iovad);
 	kfree(iovad);
 	domain->iova_cookie = NULL;
 }
@@ -403,7 +404,7 @@ static int __finalise_sg(struct device *
 		unsigned int s_length = sg_dma_len(s);
 		unsigned int s_dma_len = s->length;
 
-		s->offset = s_offset;
+		s->offset += s_offset;
 		s->length = s_length;
 		sg_dma_address(s) = dma_addr + s_offset;
 		dma_addr += s_dma_len;
@@ -422,7 +423,7 @@ static void __invalidate_sg(struct scatt
 
 	for_each_sg(sg, s, nents, i) {
 		if (sg_dma_address(s) != DMA_ERROR_CODE)
-			s->offset = sg_dma_address(s);
+			s->offset += sg_dma_address(s);
 		if (sg_dma_len(s))
 			s->length = sg_dma_len(s);
 		sg_dma_address(s) = DMA_ERROR_CODE;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/iommu/dmar.c linux-libre-4.4.107-gnu/drivers/iommu/dmar.c
--- linux-libre-4.4-gnu/drivers/iommu/dmar.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/iommu/dmar.c	2017-12-20 04:05:01.000000000 -0500
@@ -326,10 +326,13 @@ static int dmar_pci_bus_notifier(struct
 	struct pci_dev *pdev = to_pci_dev(data);
 	struct dmar_pci_notify_info *info;
 
-	/* Only care about add/remove events for physical functions */
+	/* Only care about add/remove events for physical functions.
+	 * For VFs we actually do the lookup based on the corresponding
+	 * PF in device_to_iommu() anyway. */
 	if (pdev->is_virtfn)
 		return NOTIFY_DONE;
-	if (action != BUS_NOTIFY_ADD_DEVICE && action != BUS_NOTIFY_DEL_DEVICE)
+	if (action != BUS_NOTIFY_ADD_DEVICE &&
+	    action != BUS_NOTIFY_REMOVED_DEVICE)
 		return NOTIFY_DONE;
 
 	info = dmar_alloc_pci_notify_info(pdev, action);
@@ -339,7 +342,7 @@ static int dmar_pci_bus_notifier(struct
 	down_write(&dmar_global_lock);
 	if (action == BUS_NOTIFY_ADD_DEVICE)
 		dmar_pci_bus_add_dev(info);
-	else if (action == BUS_NOTIFY_DEL_DEVICE)
+	else if (action == BUS_NOTIFY_REMOVED_DEVICE)
 		dmar_pci_bus_del_dev(info);
 	up_write(&dmar_global_lock);
 
@@ -1347,7 +1350,7 @@ void dmar_disable_qi(struct intel_iommu
 
 	raw_spin_lock_irqsave(&iommu->register_lock, flags);
 
-	sts =  dmar_readq(iommu->reg + DMAR_GSTS_REG);
+	sts =  readl(iommu->reg + DMAR_GSTS_REG);
 	if (!(sts & DMA_GSTS_QIES))
 		goto end;
 
@@ -1857,10 +1860,11 @@ static int dmar_hp_remove_drhd(struct ac
 	/*
 	 * All PCI devices managed by this unit should have been destroyed.
 	 */
-	if (!dmaru->include_all && dmaru->devices && dmaru->devices_cnt)
+	if (!dmaru->include_all && dmaru->devices && dmaru->devices_cnt) {
 		for_each_active_dev_scope(dmaru->devices,
 					  dmaru->devices_cnt, i, dev)
 			return -EBUSY;
+	}
 
 	ret = dmar_ir_hotplug(dmaru, false);
 	if (ret == 0)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/iommu/exynos-iommu.c linux-libre-4.4.107-gnu/drivers/iommu/exynos-iommu.c
--- linux-libre-4.4-gnu/drivers/iommu/exynos-iommu.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/iommu/exynos-iommu.c	2017-12-20 04:05:01.000000000 -0500
@@ -647,6 +647,7 @@ static struct platform_driver exynos_sys
 		.name		= "exynos-sysmmu",
 		.of_match_table	= sysmmu_of_match,
 		.pm		= &sysmmu_pm_ops,
+		.suppress_bind_attrs = true,
 	}
 };
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/iommu/intel-iommu.c linux-libre-4.4.107-gnu/drivers/iommu/intel-iommu.c
--- linux-libre-4.4-gnu/drivers/iommu/intel-iommu.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/iommu/intel-iommu.c	2017-12-20 04:05:01.000000000 -0500
@@ -885,7 +885,13 @@ static struct intel_iommu *device_to_iom
 		return NULL;
 
 	if (dev_is_pci(dev)) {
+		struct pci_dev *pf_pdev;
+
 		pdev = to_pci_dev(dev);
+		/* VFs aren't listed in scope tables; we need to look up
+		 * the PF instead to find the IOMMU. */
+		pf_pdev = pci_physfn(pdev);
+		dev = &pf_pdev->dev;
 		segment = pci_domain_nr(pdev->bus);
 	} else if (has_acpi_companion(dev))
 		dev = &ACPI_COMPANION(dev)->dev;
@@ -898,6 +904,13 @@ static struct intel_iommu *device_to_iom
 		for_each_active_dev_scope(drhd->devices,
 					  drhd->devices_cnt, i, tmp) {
 			if (tmp == dev) {
+				/* For a VF use its original BDF# not that of the PF
+				 * which we used for the IOMMU lookup. Strictly speaking
+				 * we could do this for all PCI devices; we only need to
+				 * get the BDF# from the scope table for ACPI matches. */
+				if (pdev && pdev->is_virtfn)
+					goto got_pdev;
+
 				*bus = drhd->devices[i].bus;
 				*devfn = drhd->devices[i].devfn;
 				goto out;
@@ -1124,7 +1137,7 @@ static void dma_pte_free_level(struct dm
 		if (!dma_pte_present(pte) || dma_pte_superpage(pte))
 			goto next;
 
-		level_pfn = pfn & level_mask(level - 1);
+		level_pfn = pfn & level_mask(level);
 		level_pte = phys_to_virt(dma_pte_addr(pte));
 
 		if (level > 2)
@@ -1489,7 +1502,7 @@ static void iommu_disable_dev_iotlb(stru
 {
 	struct pci_dev *pdev;
 
-	if (dev_is_pci(info->dev))
+	if (!dev_is_pci(info->dev))
 		return;
 
 	pdev = to_pci_dev(info->dev);
@@ -1672,6 +1685,7 @@ static void disable_dmar_iommu(struct in
 	if (!iommu->domains || !iommu->domain_ids)
 		return;
 
+again:
 	spin_lock_irqsave(&device_domain_lock, flags);
 	list_for_each_entry_safe(info, tmp, &device_domain_list, global) {
 		struct dmar_domain *domain;
@@ -1684,10 +1698,19 @@ static void disable_dmar_iommu(struct in
 
 		domain = info->domain;
 
-		dmar_remove_one_dev_info(domain, info->dev);
+		__dmar_remove_one_dev_info(info);
 
-		if (!domain_type_is_vm_or_si(domain))
+		if (!domain_type_is_vm_or_si(domain)) {
+			/*
+			 * The domain_exit() function  can't be called under
+			 * device_domain_lock, as it takes this lock itself.
+			 * So release the lock here and re-run the loop
+			 * afterwards.
+			 */
+			spin_unlock_irqrestore(&device_domain_lock, flags);
 			domain_exit(domain);
+			goto again;
+		}
 	}
 	spin_unlock_irqrestore(&device_domain_lock, flags);
 
@@ -1970,6 +1993,28 @@ static int domain_context_mapping_one(st
 	if (context_present(context))
 		goto out_unlock;
 
+	/*
+	 * For kdump cases, old valid entries may be cached due to the
+	 * in-flight DMA and copied pgtable, but there is no unmapping
+	 * behaviour for them, thus we need an explicit cache flush for
+	 * the newly-mapped device. For kdump, at this point, the device
+	 * is supposed to finish reset at its driver probe stage, so no
+	 * in-flight DMA will exist, and we don't need to worry anymore
+	 * hereafter.
+	 */
+	if (context_copied(context)) {
+		u16 did_old = context_domain_id(context);
+
+		if (did_old >= 0 && did_old < cap_ndoms(iommu->cap)) {
+			iommu->flush.flush_context(iommu, did_old,
+						   (((u16)bus) << 8) | devfn,
+						   DMA_CCMD_MASK_NOBIT,
+						   DMA_CCMD_DEVICE_INVL);
+			iommu->flush.flush_iotlb(iommu, did_old, 0, 0,
+						 DMA_TLB_DSI_FLUSH);
+		}
+	}
+
 	pgd = domain->pgd;
 
 	context_clear_entry(context);
@@ -2032,7 +2077,7 @@ out_unlock:
 	spin_unlock(&iommu->lock);
 	spin_unlock_irqrestore(&device_domain_lock, flags);
 
-	return 0;
+	return ret;
 }
 
 struct domain_context_mapping_data {
@@ -2156,10 +2201,12 @@ static int __domain_mapping(struct dmar_
 		uint64_t tmp;
 
 		if (!sg_res) {
+			unsigned int pgoff = sg->offset & ~PAGE_MASK;
+
 			sg_res = aligned_nrpages(sg->offset, sg->length);
-			sg->dma_address = ((dma_addr_t)iov_pfn << VTD_PAGE_SHIFT) + sg->offset;
+			sg->dma_address = ((dma_addr_t)iov_pfn << VTD_PAGE_SHIFT) + pgoff;
 			sg->dma_length = sg->length;
-			pteval = page_to_phys(sg_page(sg)) | prot;
+			pteval = (sg_phys(sg) - pgoff) | prot;
 			phys_pfn = pteval >> VTD_PAGE_SHIFT;
 		}
 
@@ -3169,11 +3216,6 @@ static int __init init_dmars(void)
 			}
 		}
 
-		iommu_flush_write_buffer(iommu);
-		iommu_set_root_entry(iommu);
-		iommu->flush.flush_context(iommu, 0, 0, 0, DMA_CCMD_GLOBAL_INVL);
-		iommu->flush.flush_iotlb(iommu, 0, 0, 0, DMA_TLB_GLOBAL_FLUSH);
-
 		if (!ecap_pass_through(iommu->ecap))
 			hw_pass_through = 0;
 #ifdef CONFIG_INTEL_IOMMU_SVM
@@ -3182,6 +3224,18 @@ static int __init init_dmars(void)
 #endif
 	}
 
+	/*
+	 * Now that qi is enabled on all iommus, set the root entry and flush
+	 * caches. This is required on some Intel X58 chipsets, otherwise the
+	 * flush_context function will loop forever and the boot hangs.
+	 */
+	for_each_active_iommu(iommu, drhd) {
+		iommu_flush_write_buffer(iommu);
+		iommu_set_root_entry(iommu);
+		iommu->flush.flush_context(iommu, 0, 0, 0, DMA_CCMD_GLOBAL_INVL);
+		iommu->flush.flush_iotlb(iommu, 0, 0, 0, DMA_TLB_GLOBAL_FLUSH);
+	}
+
 	if (iommu_pass_through)
 		iommu_identity_mapping |= IDENTMAP_ALL;
 
@@ -3189,13 +3243,14 @@ static int __init init_dmars(void)
 	iommu_identity_mapping |= IDENTMAP_GFX;
 #endif
 
+	check_tylersburg_isoch();
+
 	if (iommu_identity_mapping) {
 		ret = si_domain_init(hw_pass_through);
 		if (ret)
 			goto free_iommu;
 	}
 
-	check_tylersburg_isoch();
 
 	/*
 	 * If we copied translations from a previous kernel in the kdump
@@ -3704,7 +3759,7 @@ static int intel_nontranslate_map_sg(str
 
 	for_each_sg(sglist, sg, nelems, i) {
 		BUG_ON(!sg_page(sg));
-		sg->dma_address = page_to_phys(sg_page(sg)) + sg->offset;
+		sg->dma_address = sg_phys(sg);
 		sg->dma_length = sg->length;
 	}
 	return nelems;
@@ -4175,10 +4230,11 @@ int dmar_check_one_atsr(struct acpi_dmar
 	if (!atsru)
 		return 0;
 
-	if (!atsru->include_all && atsru->devices && atsru->devices_cnt)
+	if (!atsru->include_all && atsru->devices && atsru->devices_cnt) {
 		for_each_active_dev_scope(atsru->devices, atsru->devices_cnt,
 					  i, dev)
 			return -EBUSY;
+	}
 
 	return 0;
 }
@@ -4367,7 +4423,7 @@ int dmar_iommu_notify_scope_dev(struct d
 				rmrru->devices_cnt);
 			if(ret < 0)
 				return ret;
-		} else if (info->event == BUS_NOTIFY_DEL_DEVICE) {
+		} else if (info->event == BUS_NOTIFY_REMOVED_DEVICE) {
 			dmar_remove_dev_scope(info, rmrr->segment,
 				rmrru->devices, rmrru->devices_cnt);
 		}
@@ -4387,7 +4443,7 @@ int dmar_iommu_notify_scope_dev(struct d
 				break;
 			else if(ret < 0)
 				return ret;
-		} else if (info->event == BUS_NOTIFY_DEL_DEVICE) {
+		} else if (info->event == BUS_NOTIFY_REMOVED_DEVICE) {
 			if (dmar_remove_dev_scope(info, atsr->segment,
 					atsru->devices, atsru->devices_cnt))
 				break;
@@ -4989,6 +5045,25 @@ static void intel_iommu_remove_device(st
 }
 
 #ifdef CONFIG_INTEL_IOMMU_SVM
+#define MAX_NR_PASID_BITS (20)
+static inline unsigned long intel_iommu_get_pts(struct intel_iommu *iommu)
+{
+	/*
+	 * Convert ecap_pss to extend context entry pts encoding, also
+	 * respect the soft pasid_max value set by the iommu.
+	 * - number of PASID bits = ecap_pss + 1
+	 * - number of PASID table entries = 2^(pts + 5)
+	 * Therefore, pts = ecap_pss - 4
+	 * e.g. KBL ecap_pss = 0x13, PASID has 20 bits, pts = 15
+	 */
+	if (ecap_pss(iommu->ecap) < 5)
+		return 0;
+
+	/* pasid_max is encoded as actual number of entries not the bits */
+	return find_first_bit((unsigned long *)&iommu->pasid_max,
+			MAX_NR_PASID_BITS) - 5;
+}
+
 int intel_iommu_enable_pasid(struct intel_iommu *iommu, struct intel_svm_dev *sdev)
 {
 	struct device_domain_info *info;
@@ -5021,7 +5096,9 @@ int intel_iommu_enable_pasid(struct inte
 
 	if (!(ctx_lo & CONTEXT_PASIDE)) {
 		context[1].hi = (u64)virt_to_phys(iommu->pasid_state_table);
-		context[1].lo = (u64)virt_to_phys(iommu->pasid_table) | ecap_pss(iommu->ecap);
+		context[1].lo = (u64)virt_to_phys(iommu->pasid_table) |
+			intel_iommu_get_pts(iommu);
+
 		wmb();
 		/* CONTEXT_TT_MULTI_LEVEL and CONTEXT_TT_DEV_IOTLB are both
 		 * extended to permit requests-with-PASID if the PASIDE bit
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/iommu/intel_irq_remapping.c linux-libre-4.4.107-gnu/drivers/iommu/intel_irq_remapping.c
--- linux-libre-4.4-gnu/drivers/iommu/intel_irq_remapping.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/iommu/intel_irq_remapping.c	2017-12-20 04:05:01.000000000 -0500
@@ -629,7 +629,7 @@ static void iommu_disable_irq_remapping(
 
 	raw_spin_lock_irqsave(&iommu->register_lock, flags);
 
-	sts = dmar_readq(iommu->reg + DMAR_GSTS_REG);
+	sts = readl(iommu->reg + DMAR_GSTS_REG);
 	if (!(sts & DMA_GSTS_IRES))
 		goto end;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/iommu/intel-svm.c linux-libre-4.4.107-gnu/drivers/iommu/intel-svm.c
--- linux-libre-4.4-gnu/drivers/iommu/intel-svm.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/iommu/intel-svm.c	2017-12-20 04:05:01.000000000 -0500
@@ -39,10 +39,18 @@ int intel_svm_alloc_pasid_tables(struct
 	struct page *pages;
 	int order;
 
-	order = ecap_pss(iommu->ecap) + 7 - PAGE_SHIFT;
-	if (order < 0)
-		order = 0;
+	/* Start at 2 because it's defined as 2^(1+PSS) */
+	iommu->pasid_max = 2 << ecap_pss(iommu->ecap);
+
+	/* Eventually I'm promised we will get a multi-level PASID table
+	 * and it won't have to be physically contiguous. Until then,
+	 * limit the size because 8MiB contiguous allocations can be hard
+	 * to come by. The limit of 0x20000, which is 1MiB for each of
+	 * the PASID and PASID-state tables, is somewhat arbitrary. */
+	if (iommu->pasid_max > 0x20000)
+		iommu->pasid_max = 0x20000;
 
+	order = get_order(sizeof(struct pasid_entry) * iommu->pasid_max);
 	pages = alloc_pages(GFP_KERNEL | __GFP_ZERO, order);
 	if (!pages) {
 		pr_warn("IOMMU: %s: Failed to allocate PASID table\n",
@@ -53,6 +61,8 @@ int intel_svm_alloc_pasid_tables(struct
 	pr_info("%s: Allocated order %d PASID table.\n", iommu->name, order);
 
 	if (ecap_dis(iommu->ecap)) {
+		/* Just making it explicit... */
+		BUILD_BUG_ON(sizeof(struct pasid_entry) != sizeof(struct pasid_state_entry));
 		pages = alloc_pages(GFP_KERNEL | __GFP_ZERO, order);
 		if (pages)
 			iommu->pasid_state_table = page_address(pages);
@@ -68,11 +78,7 @@ int intel_svm_alloc_pasid_tables(struct
 
 int intel_svm_free_pasid_tables(struct intel_iommu *iommu)
 {
-	int order;
-
-	order = ecap_pss(iommu->ecap) + 7 - PAGE_SHIFT;
-	if (order < 0)
-		order = 0;
+	int order = get_order(sizeof(struct pasid_entry) * iommu->pasid_max);
 
 	if (iommu->pasid_table) {
 		free_pages((unsigned long)iommu->pasid_table, order);
@@ -249,12 +255,30 @@ static void intel_flush_pasid_dev(struct
 static void intel_mm_release(struct mmu_notifier *mn, struct mm_struct *mm)
 {
 	struct intel_svm *svm = container_of(mn, struct intel_svm, notifier);
+	struct intel_svm_dev *sdev;
 
+	/* This might end up being called from exit_mmap(), *before* the page
+	 * tables are cleared. And __mmu_notifier_release() will delete us from
+	 * the list of notifiers so that our invalidate_range() callback doesn't
+	 * get called when the page tables are cleared. So we need to protect
+	 * against hardware accessing those page tables.
+	 *
+	 * We do it by clearing the entry in the PASID table and then flushing
+	 * the IOTLB and the PASID table caches. This might upset hardware;
+	 * perhaps we'll want to point the PASID to a dummy PGD (like the zero
+	 * page) so that we end up taking a fault that the hardware really
+	 * *has* to handle gracefully without affecting other processes.
+	 */
 	svm->iommu->pasid_table[svm->pasid].val = 0;
+	wmb();
+
+	rcu_read_lock();
+	list_for_each_entry_rcu(sdev, &svm->devs, list) {
+		intel_flush_pasid_dev(svm, sdev, svm->pasid);
+		intel_flush_svm_range_dev(svm, sdev, 0, -1, 0, !svm->mm);
+	}
+	rcu_read_unlock();
 
-	/* There's no need to do any flush because we can't get here if there
-	 * are any devices left anyway. */
-	WARN_ON(!list_empty(&svm->devs));
 }
 
 static const struct mmu_notifier_ops intel_mmuops = {
@@ -353,8 +377,8 @@ int intel_svm_bind_mm(struct device *dev
 		}
 		svm->iommu = iommu;
 
-		if (pasid_max > 2 << ecap_pss(iommu->ecap))
-			pasid_max = 2 << ecap_pss(iommu->ecap);
+		if (pasid_max > iommu->pasid_max)
+			pasid_max = iommu->pasid_max;
 
 		/* Do not use PASID 0 in caching mode (virtualised IOMMU) */
 		ret = idr_alloc(&iommu->pasid_idr, svm,
@@ -379,7 +403,6 @@ int intel_svm_bind_mm(struct device *dev
 				goto out;
 			}
 			iommu->pasid_table[svm->pasid].val = (u64)__pa(mm->pgd) | 1;
-			mm = NULL;
 		} else
 			iommu->pasid_table[svm->pasid].val = (u64)__pa(init_mm.pgd) | 1 | (1ULL << 11);
 		wmb();
@@ -442,11 +465,11 @@ int intel_svm_unbind_mm(struct device *d
 				kfree_rcu(sdev, rcu);
 
 				if (list_empty(&svm->devs)) {
-					mmu_notifier_unregister(&svm->notifier, svm->mm);
 
 					idr_remove(&svm->iommu->pasid_idr, svm->pasid);
 					if (svm->mm)
-						mmput(svm->mm);
+						mmu_notifier_unregister(&svm->notifier, svm->mm);
+
 					/* We mandate that no page faults may be outstanding
 					 * for the PASID when intel_svm_unbind_mm() is called.
 					 * If that is not obeyed, subtle errors will happen.
@@ -507,6 +530,10 @@ static irqreturn_t prq_event_thread(int
 	struct intel_svm *svm = NULL;
 	int head, tail, handled = 0;
 
+	/* Clear PPR bit before reading head/tail registers, to
+	 * ensure that we get a new interrupt if needed. */
+	writel(DMA_PRS_PPR, iommu->reg + DMAR_PRS_REG);
+
 	tail = dmar_readq(iommu->reg + DMAR_PQT_REG) & PRQ_RING_MASK;
 	head = dmar_readq(iommu->reg + DMAR_PQH_REG) & PRQ_RING_MASK;
 	while (head != tail) {
@@ -551,6 +578,9 @@ static irqreturn_t prq_event_thread(int
 		 * any faults on kernel addresses. */
 		if (!svm->mm)
 			goto bad_req;
+		/* If the mm is already defunct, don't handle faults. */
+		if (!atomic_inc_not_zero(&svm->mm->mm_users))
+			goto bad_req;
 		down_read(&svm->mm->mmap_sem);
 		vma = find_extend_vma(svm->mm, address);
 		if (!vma || address < vma->vm_start)
@@ -567,6 +597,7 @@ static irqreturn_t prq_event_thread(int
 		result = QI_RESP_SUCCESS;
 	invalid:
 		up_read(&svm->mm->mmap_sem);
+		mmput(svm->mm);
 	bad_req:
 		/* Accounting for major/minor faults? */
 		rcu_read_lock();
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/iommu/iommu.c linux-libre-4.4.107-gnu/drivers/iommu/iommu.c
--- linux-libre-4.4-gnu/drivers/iommu/iommu.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/iommu/iommu.c	2017-12-20 04:05:01.000000000 -0500
@@ -391,36 +391,30 @@ int iommu_group_add_device(struct iommu_
 	device->dev = dev;
 
 	ret = sysfs_create_link(&dev->kobj, &group->kobj, "iommu_group");
-	if (ret) {
-		kfree(device);
-		return ret;
-	}
+	if (ret)
+		goto err_free_device;
 
 	device->name = kasprintf(GFP_KERNEL, "%s", kobject_name(&dev->kobj));
 rename:
 	if (!device->name) {
-		sysfs_remove_link(&dev->kobj, "iommu_group");
-		kfree(device);
-		return -ENOMEM;
+		ret = -ENOMEM;
+		goto err_remove_link;
 	}
 
 	ret = sysfs_create_link_nowarn(group->devices_kobj,
 				       &dev->kobj, device->name);
 	if (ret) {
-		kfree(device->name);
 		if (ret == -EEXIST && i >= 0) {
 			/*
 			 * Account for the slim chance of collision
 			 * and append an instance to the name.
 			 */
+			kfree(device->name);
 			device->name = kasprintf(GFP_KERNEL, "%s.%d",
 						 kobject_name(&dev->kobj), i++);
 			goto rename;
 		}
-
-		sysfs_remove_link(&dev->kobj, "iommu_group");
-		kfree(device);
-		return ret;
+		goto err_free_name;
 	}
 
 	kobject_get(group->devices_kobj);
@@ -432,8 +426,10 @@ rename:
 	mutex_lock(&group->mutex);
 	list_add_tail(&device->list, &group->devices);
 	if (group->domain)
-		__iommu_attach_device(group->domain, dev);
+		ret = __iommu_attach_device(group->domain, dev);
 	mutex_unlock(&group->mutex);
+	if (ret)
+		goto err_put_group;
 
 	/* Notify any listeners about change to group. */
 	blocking_notifier_call_chain(&group->notifier,
@@ -444,6 +440,21 @@ rename:
 	pr_info("Adding device %s to group %d\n", dev_name(dev), group->id);
 
 	return 0;
+
+err_put_group:
+	mutex_lock(&group->mutex);
+	list_del(&device->list);
+	mutex_unlock(&group->mutex);
+	dev->iommu_group = NULL;
+	kobject_put(group->devices_kobj);
+err_free_name:
+	kfree(device->name);
+err_remove_link:
+	sysfs_remove_link(&dev->kobj, "iommu_group");
+err_free_device:
+	kfree(device);
+	pr_err("Failed to add device %s to group %d: %d\n", dev_name(dev), group->id, ret);
+	return ret;
 }
 EXPORT_SYMBOL_GPL(iommu_group_add_device);
 
@@ -848,7 +859,8 @@ struct iommu_group *iommu_group_get_for_
 	if (!group->default_domain) {
 		group->default_domain = __iommu_domain_alloc(dev->bus,
 							     IOMMU_DOMAIN_DMA);
-		group->domain = group->default_domain;
+		if (!group->domain)
+			group->domain = group->default_domain;
 	}
 
 	ret = iommu_group_add_device(group, dev);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/iommu/io-pgtable-arm.c linux-libre-4.4.107-gnu/drivers/iommu/io-pgtable-arm.c
--- linux-libre-4.4-gnu/drivers/iommu/io-pgtable-arm.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/iommu/io-pgtable-arm.c	2017-12-20 04:05:01.000000000 -0500
@@ -335,8 +335,12 @@ static int __arm_lpae_map(struct arm_lpa
 		if (cfg->quirks & IO_PGTABLE_QUIRK_ARM_NS)
 			pte |= ARM_LPAE_PTE_NSTABLE;
 		__arm_lpae_set_pte(ptep, pte, cfg);
-	} else {
+	} else if (!iopte_leaf(pte, lvl)) {
 		cptep = iopte_deref(pte, data);
+	} else {
+		/* We require an unmap first */
+		WARN_ON(!selftest_running);
+		return -EEXIST;
 	}
 
 	/* Rinse, repeat */
@@ -405,17 +409,18 @@ static void __arm_lpae_free_pgtable(stru
 	arm_lpae_iopte *start, *end;
 	unsigned long table_size;
 
-	/* Only leaf entries at the last level */
-	if (lvl == ARM_LPAE_MAX_LEVELS - 1)
-		return;
-
 	if (lvl == ARM_LPAE_START_LVL(data))
 		table_size = data->pgd_size;
 	else
 		table_size = 1UL << data->pg_shift;
 
 	start = ptep;
-	end = (void *)ptep + table_size;
+
+	/* Only leaf entries at the last level */
+	if (lvl == ARM_LPAE_MAX_LEVELS - 1)
+		end = ptep;
+	else
+		end = (void *)ptep + table_size;
 
 	while (ptep != end) {
 		arm_lpae_iopte pte = *ptep++;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/irqchip/irq-atmel-aic5.c linux-libre-4.4.107-gnu/drivers/irqchip/irq-atmel-aic5.c
--- linux-libre-4.4-gnu/drivers/irqchip/irq-atmel-aic5.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/irqchip/irq-atmel-aic5.c	2017-12-20 04:05:01.000000000 -0500
@@ -258,6 +258,7 @@ static int aic5_irq_domain_xlate(struct
 				 unsigned int *out_type)
 {
 	struct irq_chip_generic *bgc = irq_get_domain_generic_chip(d, 0);
+	unsigned long flags;
 	unsigned smr;
 	int ret;
 
@@ -269,13 +270,13 @@ static int aic5_irq_domain_xlate(struct
 	if (ret)
 		return ret;
 
-	irq_gc_lock(bgc);
+	irq_gc_lock_irqsave(bgc, flags);
 	irq_reg_writel(bgc, *out_hwirq, AT91_AIC5_SSR);
 	smr = irq_reg_readl(bgc, AT91_AIC5_SMR);
 	ret = aic_common_set_priority(intspec[2], &smr);
 	if (!ret)
 		irq_reg_writel(bgc, intspec[2] | smr, AT91_AIC5_SMR);
-	irq_gc_unlock(bgc);
+	irq_gc_unlock_irqrestore(bgc, flags);
 
 	return ret;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/irqchip/irq-atmel-aic.c linux-libre-4.4.107-gnu/drivers/irqchip/irq-atmel-aic.c
--- linux-libre-4.4-gnu/drivers/irqchip/irq-atmel-aic.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/irqchip/irq-atmel-aic.c	2017-12-20 04:05:01.000000000 -0500
@@ -176,6 +176,7 @@ static int aic_irq_domain_xlate(struct i
 {
 	struct irq_domain_chip_generic *dgc = d->gc;
 	struct irq_chip_generic *gc;
+	unsigned long flags;
 	unsigned smr;
 	int idx;
 	int ret;
@@ -194,12 +195,12 @@ static int aic_irq_domain_xlate(struct i
 
 	gc = dgc->gc[idx];
 
-	irq_gc_lock(gc);
+	irq_gc_lock_irqsave(gc, flags);
 	smr = irq_reg_readl(gc, AT91_AIC_SMR(*out_hwirq));
 	ret = aic_common_set_priority(intspec[2], &smr);
 	if (!ret)
 		irq_reg_writel(gc, smr, AT91_AIC_SMR(*out_hwirq));
-	irq_gc_unlock(gc);
+	irq_gc_unlock_irqrestore(gc, flags);
 
 	return ret;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/irqchip/irq-atmel-aic-common.c linux-libre-4.4.107-gnu/drivers/irqchip/irq-atmel-aic-common.c
--- linux-libre-4.4-gnu/drivers/irqchip/irq-atmel-aic-common.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/irqchip/irq-atmel-aic-common.c	2017-12-20 04:05:01.000000000 -0500
@@ -86,7 +86,7 @@ int aic_common_set_priority(int priority
 	    priority > AT91_AIC_IRQ_MAX_PRIORITY)
 		return -EINVAL;
 
-	*val &= AT91_AIC_PRIOR;
+	*val &= ~AT91_AIC_PRIOR;
 	*val |= priority;
 
 	return 0;
@@ -148,9 +148,9 @@ void __init aic_common_rtc_irq_fixup(str
 	struct device_node *np;
 	void __iomem *regs;
 
-	np = of_find_compatible_node(root, NULL, "atmel,at91rm9200-rtc");
+	np = of_find_compatible_node(NULL, NULL, "atmel,at91rm9200-rtc");
 	if (!np)
-		np = of_find_compatible_node(root, NULL,
+		np = of_find_compatible_node(NULL, NULL,
 					     "atmel,at91sam9x5-rtc");
 
 	if (!np)
@@ -202,7 +202,6 @@ void __init aic_common_irq_fixup(const s
 		return;
 
 	match = of_match_node(matches, root);
-	of_node_put(root);
 
 	if (match) {
 		void (*fixup)(struct device_node *) = match->data;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/irqchip/irq-bcm7038-l1.c linux-libre-4.4.107-gnu/drivers/irqchip/irq-bcm7038-l1.c
--- linux-libre-4.4-gnu/drivers/irqchip/irq-bcm7038-l1.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/irqchip/irq-bcm7038-l1.c	2017-12-20 04:05:01.000000000 -0500
@@ -216,6 +216,31 @@ static int bcm7038_l1_set_affinity(struc
 	return 0;
 }
 
+static void bcm7038_l1_cpu_offline(struct irq_data *d)
+{
+	struct cpumask *mask = irq_data_get_affinity_mask(d);
+	int cpu = smp_processor_id();
+	cpumask_t new_affinity;
+
+	/* This CPU was not on the affinity mask */
+	if (!cpumask_test_cpu(cpu, mask))
+		return;
+
+	if (cpumask_weight(mask) > 1) {
+		/*
+		 * Multiple CPU affinity, remove this CPU from the affinity
+		 * mask
+		 */
+		cpumask_copy(&new_affinity, mask);
+		cpumask_clear_cpu(cpu, &new_affinity);
+	} else {
+		/* Only CPU, put on the lowest online CPU */
+		cpumask_clear(&new_affinity);
+		cpumask_set_cpu(cpumask_first(cpu_online_mask), &new_affinity);
+	}
+	irq_set_affinity_locked(d, &new_affinity, false);
+}
+
 static int __init bcm7038_l1_init_one(struct device_node *dn,
 				      unsigned int idx,
 				      struct bcm7038_l1_chip *intc)
@@ -267,6 +292,7 @@ static struct irq_chip bcm7038_l1_irq_ch
 	.irq_mask		= bcm7038_l1_mask,
 	.irq_unmask		= bcm7038_l1_unmask,
 	.irq_set_affinity	= bcm7038_l1_set_affinity,
+	.irq_cpu_offline	= bcm7038_l1_cpu_offline,
 };
 
 static int bcm7038_l1_map(struct irq_domain *d, unsigned int virq,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/irqchip/irq-crossbar.c linux-libre-4.4.107-gnu/drivers/irqchip/irq-crossbar.c
--- linux-libre-4.4-gnu/drivers/irqchip/irq-crossbar.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/irqchip/irq-crossbar.c	2017-12-20 04:05:01.000000000 -0500
@@ -198,7 +198,8 @@ static const struct irq_domain_ops cross
 
 static int __init crossbar_of_init(struct device_node *node)
 {
-	int i, size, max = 0, reserved = 0, entry;
+	int i, size, reserved = 0;
+	u32 max = 0, entry, reg_size;
 	const __be32 *irqsr;
 	int ret = -ENOMEM;
 
@@ -275,9 +276,9 @@ static int __init crossbar_of_init(struc
 	if (!cb->register_offsets)
 		goto err_irq_map;
 
-	of_property_read_u32(node, "ti,reg-size", &size);
+	of_property_read_u32(node, "ti,reg-size", &reg_size);
 
-	switch (size) {
+	switch (reg_size) {
 	case 1:
 		cb->write = crossbar_writeb;
 		break;
@@ -303,7 +304,7 @@ static int __init crossbar_of_init(struc
 			continue;
 
 		cb->register_offsets[i] = reserved;
-		reserved += size;
+		reserved += reg_size;
 	}
 
 	of_property_read_u32(node, "ti,irqs-safe-map", &cb->safe_map);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/irqchip/irq-gic.c linux-libre-4.4.107-gnu/drivers/irqchip/irq-gic.c
--- linux-libre-4.4-gnu/drivers/irqchip/irq-gic.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/irqchip/irq-gic.c	2017-12-20 04:05:01.000000000 -0500
@@ -347,6 +347,14 @@ static void __exception_irq_entry gic_ha
 			if (static_key_true(&supports_deactivate))
 				writel_relaxed(irqstat, cpu_base + GIC_CPU_DEACTIVATE);
 #ifdef CONFIG_SMP
+			/*
+			 * Ensure any shared data written by the CPU sending
+			 * the IPI is read after we've read the ACK register
+			 * on the GIC.
+			 *
+			 * Pairs with the write barrier in gic_raise_softirq
+			 */
+			smp_rmb();
 			handle_IPI(irqnr, regs);
 #endif
 			continue;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/irqchip/irq-gic-v3.c linux-libre-4.4.107-gnu/drivers/irqchip/irq-gic-v3.c
--- linux-libre-4.4-gnu/drivers/irqchip/irq-gic-v3.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/irqchip/irq-gic-v3.c	2017-12-20 04:05:01.000000000 -0500
@@ -142,7 +142,7 @@ static void gic_enable_redist(bool enabl
 			return;	/* No PM support in this redistributor */
 	}
 
-	while (count--) {
+	while (--count) {
 		val = readl_relaxed(rbase + GICR_WAKER);
 		if (enable ^ (val & GICR_WAKER_ChildrenAsleep))
 			break;
@@ -361,6 +361,13 @@ static asmlinkage void __exception_irq_e
 			if (static_key_true(&supports_deactivate))
 				gic_write_dir(irqnr);
 #ifdef CONFIG_SMP
+			/*
+			 * Unlike GICv2, we don't need an smp_rmb() here.
+			 * The control dependency from gic_read_iar to
+			 * the ISB in gic_write_eoir is enough to ensure
+			 * that any shared data read by handle_IPI will
+			 * be read after the ACK.
+			 */
 			handle_IPI(irqnr, regs);
 #else
 			WARN_ONCE(true, "Unexpected SGI received!\n");
@@ -380,6 +387,15 @@ static void __init gic_dist_init(void)
 	writel_relaxed(0, base + GICD_CTLR);
 	gic_dist_wait_for_rwp();
 
+	/*
+	 * Configure SPIs as non-secure Group-1. This will only matter
+	 * if the GIC only has a single security state. This will not
+	 * do the right thing if the kernel is running in secure mode,
+	 * but that's not the intended use case anyway.
+	 */
+	for (i = 32; i < gic_data.irq_nr; i += 32)
+		writel_relaxed(~0, base + GICD_IGROUPR + i / 8);
+
 	gic_dist_config(base, gic_data.irq_nr, gic_dist_wait_for_rwp);
 
 	/* Enable distributor with ARE, Group1 */
@@ -494,6 +510,9 @@ static void gic_cpu_init(void)
 
 	rbase = gic_data_rdist_sgi_base();
 
+	/* Configure SGIs/PPIs as non-secure Group-1 */
+	writel_relaxed(~0, rbase + GICR_IGROUPR0);
+
 	gic_cpu_config(rbase, gic_redist_wait_for_rwp);
 
 	/* Give LPIs a spin */
@@ -525,7 +544,7 @@ static struct notifier_block gic_cpu_not
 static u16 gic_compute_target_list(int *base_cpu, const struct cpumask *mask,
 				   unsigned long cluster_id)
 {
-	int cpu = *base_cpu;
+	int next_cpu, cpu = *base_cpu;
 	unsigned long mpidr = cpu_logical_map(cpu);
 	u16 tlist = 0;
 
@@ -539,9 +558,10 @@ static u16 gic_compute_target_list(int *
 
 		tlist |= 1 << (mpidr & 0xf);
 
-		cpu = cpumask_next(cpu, mask);
-		if (cpu >= nr_cpu_ids)
+		next_cpu = cpumask_next(cpu, mask);
+		if (next_cpu >= nr_cpu_ids)
 			goto out;
+		cpu = next_cpu;
 
 		mpidr = cpu_logical_map(cpu);
 
@@ -612,6 +632,9 @@ static int gic_set_affinity(struct irq_d
 	int enabled;
 	u64 val;
 
+	if (cpu >= nr_cpu_ids)
+		return -EINVAL;
+
 	if (gic_irq_in_rdist(d))
 		return -EINVAL;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/irqchip/irq-gic-v3-its.c linux-libre-4.4.107-gnu/drivers/irqchip/irq-gic-v3-its.c
--- linux-libre-4.4-gnu/drivers/irqchip/irq-gic-v3-its.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/irqchip/irq-gic-v3-its.c	2017-12-20 04:05:01.000000000 -0500
@@ -41,6 +41,7 @@
 
 #define ITS_FLAGS_CMDQ_NEEDS_FLUSHING		(1ULL << 0)
 #define ITS_FLAGS_WORKAROUND_CAVIUM_22375	(1ULL << 1)
+#define ITS_FLAGS_WORKAROUND_CAVIUM_23144	(1ULL << 2)
 
 #define RDIST_FLAGS_PROPBASE_NEEDS_FLUSHING	(1 << 0)
 
@@ -71,6 +72,7 @@ struct its_node {
 	struct list_head	its_device_list;
 	u64			flags;
 	u32			ite_size;
+	int			numa_node;
 };
 
 #define ITS_ITT_ALIGN		SZ_256
@@ -597,19 +599,26 @@ static void its_unmask_irq(struct irq_da
 	lpi_set_config(d, true);
 }
 
-static void its_eoi_irq(struct irq_data *d)
-{
-	gic_write_eoir(d->hwirq);
-}
-
 static int its_set_affinity(struct irq_data *d, const struct cpumask *mask_val,
 			    bool force)
 {
-	unsigned int cpu = cpumask_any_and(mask_val, cpu_online_mask);
+	unsigned int cpu;
+	const struct cpumask *cpu_mask = cpu_online_mask;
 	struct its_device *its_dev = irq_data_get_irq_chip_data(d);
 	struct its_collection *target_col;
 	u32 id = its_get_event_id(d);
 
+       /* lpi cannot be routed to a redistributor that is on a foreign node */
+	if (its_dev->its->flags & ITS_FLAGS_WORKAROUND_CAVIUM_23144) {
+		if (its_dev->its->numa_node >= 0) {
+			cpu_mask = cpumask_of_node(its_dev->its->numa_node);
+			if (!cpumask_intersects(mask_val, cpu_mask))
+				return -EINVAL;
+		}
+	}
+
+	cpu = cpumask_any_and(mask_val, cpu_mask);
+
 	if (cpu >= nr_cpu_ids)
 		return -EINVAL;
 
@@ -638,7 +647,7 @@ static struct irq_chip its_irq_chip = {
 	.name			= "ITS",
 	.irq_mask		= its_mask_irq,
 	.irq_unmask		= its_unmask_irq,
-	.irq_eoi		= its_eoi_irq,
+	.irq_eoi		= irq_chip_eoi_parent,
 	.irq_set_affinity	= its_set_affinity,
 	.irq_compose_msi_msg	= its_irq_compose_msi_msg,
 };
@@ -1086,6 +1095,16 @@ static void its_cpu_init_collection(void
 	list_for_each_entry(its, &its_nodes, entry) {
 		u64 target;
 
+		/* avoid cross node collections and its mapping */
+		if (its->flags & ITS_FLAGS_WORKAROUND_CAVIUM_23144) {
+			struct device_node *cpu_node;
+
+			cpu_node = of_get_cpu_node(cpu, NULL);
+			if (its->numa_node != NUMA_NO_NODE &&
+				its->numa_node != of_node_to_nid(cpu_node))
+				continue;
+		}
+
 		/*
 		 * We now have to bind each collection to its target
 		 * redistributor.
@@ -1313,9 +1332,14 @@ static void its_irq_domain_activate(stru
 {
 	struct its_device *its_dev = irq_data_get_irq_chip_data(d);
 	u32 event = its_get_event_id(d);
+	const struct cpumask *cpu_mask = cpu_online_mask;
+
+	/* get the cpu_mask of local node */
+	if (its_dev->its->numa_node >= 0)
+		cpu_mask = cpumask_of_node(its_dev->its->numa_node);
 
 	/* Bind the LPI to the first possible CPU */
-	its_dev->event_map.col_map[event] = cpumask_first(cpu_online_mask);
+	its_dev->event_map.col_map[event] = cpumask_first(cpu_mask);
 
 	/* Map the GIC IRQ and event to the device */
 	its_send_mapvi(its_dev, d->hwirq, event);
@@ -1405,6 +1429,13 @@ static void __maybe_unused its_enable_qu
 	its->flags |= ITS_FLAGS_WORKAROUND_CAVIUM_22375;
 }
 
+static void __maybe_unused its_enable_quirk_cavium_23144(void *data)
+{
+	struct its_node *its = data;
+
+	its->flags |= ITS_FLAGS_WORKAROUND_CAVIUM_23144;
+}
+
 static const struct gic_quirk its_quirks[] = {
 #ifdef CONFIG_CAVIUM_ERRATUM_22375
 	{
@@ -1414,6 +1445,14 @@ static const struct gic_quirk its_quirks
 		.init	= its_enable_quirk_cavium_22375,
 	},
 #endif
+#ifdef CONFIG_CAVIUM_ERRATUM_23144
+	{
+		.desc	= "ITS: Cavium erratum 23144",
+		.iidr	= 0xa100034c,	/* ThunderX pass 1.x */
+		.mask	= 0xffff0fff,
+		.init	= its_enable_quirk_cavium_23144,
+	},
+#endif
 	{
 	}
 };
@@ -1475,6 +1514,7 @@ static int its_probe(struct device_node
 	its->base = its_base;
 	its->phys_base = res.start;
 	its->ite_size = ((readl_relaxed(its_base + GITS_TYPER) >> 4) & 0xf) + 1;
+	its->numa_node = of_node_to_nid(node);
 
 	its->cmd_base = kzalloc(ITS_CMD_QUEUE_SZ, GFP_KERNEL);
 	if (!its->cmd_base) {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/irqchip/irq-imx-gpcv2.c linux-libre-4.4.107-gnu/drivers/irqchip/irq-imx-gpcv2.c
--- linux-libre-4.4-gnu/drivers/irqchip/irq-imx-gpcv2.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/irqchip/irq-imx-gpcv2.c	2017-12-20 04:05:01.000000000 -0500
@@ -230,6 +230,8 @@ static int __init imx_gpcv2_irqchip_init
 		return -ENOMEM;
 	}
 
+	raw_spin_lock_init(&cd->rlock);
+
 	cd->gpc_base = of_iomap(node, 0);
 	if (!cd->gpc_base) {
 		pr_err("fsl-gpcv2: unable to map gpc registers\n");
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/irqchip/irq-keystone.c linux-libre-4.4.107-gnu/drivers/irqchip/irq-keystone.c
--- linux-libre-4.4-gnu/drivers/irqchip/irq-keystone.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/irqchip/irq-keystone.c	2017-12-20 04:05:01.000000000 -0500
@@ -19,9 +19,9 @@
 #include <linux/bitops.h>
 #include <linux/module.h>
 #include <linux/moduleparam.h>
+#include <linux/interrupt.h>
 #include <linux/irqdomain.h>
 #include <linux/irqchip.h>
-#include <linux/irqchip/chained_irq.h>
 #include <linux/of.h>
 #include <linux/of_platform.h>
 #include <linux/mfd/syscon.h>
@@ -39,6 +39,7 @@ struct keystone_irq_device {
 	struct irq_domain	*irqd;
 	struct regmap		*devctrl_regs;
 	u32			devctrl_offset;
+	raw_spinlock_t		wa_lock;
 };
 
 static inline u32 keystone_irq_readl(struct keystone_irq_device *kirq)
@@ -83,17 +84,15 @@ static void keystone_irq_ack(struct irq_
 	/* nothing to do here */
 }
 
-static void keystone_irq_handler(struct irq_desc *desc)
+static irqreturn_t keystone_irq_handler(int irq, void *keystone_irq)
 {
-	unsigned int irq = irq_desc_get_irq(desc);
-	struct keystone_irq_device *kirq = irq_desc_get_handler_data(desc);
+	struct keystone_irq_device *kirq = keystone_irq;
+	unsigned long wa_lock_flags;
 	unsigned long pending;
 	int src, virq;
 
 	dev_dbg(kirq->dev, "start irq %d\n", irq);
 
-	chained_irq_enter(irq_desc_get_chip(desc), desc);
-
 	pending = keystone_irq_readl(kirq);
 	keystone_irq_writel(kirq, pending);
 
@@ -111,13 +110,15 @@ static void keystone_irq_handler(struct
 			if (!virq)
 				dev_warn(kirq->dev, "sporious irq detected hwirq %d, virq %d\n",
 					 src, virq);
+			raw_spin_lock_irqsave(&kirq->wa_lock, wa_lock_flags);
 			generic_handle_irq(virq);
+			raw_spin_unlock_irqrestore(&kirq->wa_lock,
+						   wa_lock_flags);
 		}
 	}
 
-	chained_irq_exit(irq_desc_get_chip(desc), desc);
-
 	dev_dbg(kirq->dev, "end irq %d\n", irq);
+	return IRQ_HANDLED;
 }
 
 static int keystone_irq_map(struct irq_domain *h, unsigned int virq,
@@ -182,9 +183,16 @@ static int keystone_irq_probe(struct pla
 		return -ENODEV;
 	}
 
+	raw_spin_lock_init(&kirq->wa_lock);
+
 	platform_set_drvdata(pdev, kirq);
 
-	irq_set_chained_handler_and_data(kirq->irq, keystone_irq_handler, kirq);
+	ret = request_irq(kirq->irq, keystone_irq_handler,
+			  0, dev_name(dev), kirq);
+	if (ret) {
+		irq_domain_remove(kirq->irqd);
+		return ret;
+	}
 
 	/* clear all source bits */
 	keystone_irq_writel(kirq, ~0x0);
@@ -199,6 +207,8 @@ static int keystone_irq_remove(struct pl
 	struct keystone_irq_device *kirq = platform_get_drvdata(pdev);
 	int hwirq;
 
+	free_irq(kirq->irq, kirq);
+
 	for (hwirq = 0; hwirq < KEYSTONE_N_IRQ; hwirq++)
 		irq_dispose_mapping(irq_find_mapping(kirq->irqd, hwirq));
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/irqchip/irq-mips-gic.c linux-libre-4.4.107-gnu/drivers/irqchip/irq-mips-gic.c
--- linux-libre-4.4-gnu/drivers/irqchip/irq-mips-gic.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/irqchip/irq-mips-gic.c	2017-12-20 04:05:01.000000000 -0500
@@ -915,8 +915,11 @@ static int __init gic_of_init(struct dev
 		gic_len = resource_size(&res);
 	}
 
-	if (mips_cm_present())
+	if (mips_cm_present()) {
 		write_gcr_gic_base(gic_base | CM_GCR_GIC_BASE_GICEN_MSK);
+		/* Ensure GIC region is enabled before trying to access it */
+		__sync();
+	}
 	gic_present = true;
 
 	__gic_init(gic_base, gic_len, cpu_vec, 0, node);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/irqchip/irq-mxs.c linux-libre-4.4.107-gnu/drivers/irqchip/irq-mxs.c
--- linux-libre-4.4-gnu/drivers/irqchip/irq-mxs.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/irqchip/irq-mxs.c	2017-12-20 04:05:01.000000000 -0500
@@ -131,12 +131,16 @@ static struct irq_chip mxs_icoll_chip =
 	.irq_ack = icoll_ack_irq,
 	.irq_mask = icoll_mask_irq,
 	.irq_unmask = icoll_unmask_irq,
+	.flags = IRQCHIP_MASK_ON_SUSPEND |
+		 IRQCHIP_SKIP_SET_WAKE,
 };
 
 static struct irq_chip asm9260_icoll_chip = {
 	.irq_ack = icoll_ack_irq,
 	.irq_mask = asm9260_mask_irq,
 	.irq_unmask = asm9260_unmask_irq,
+	.flags = IRQCHIP_MASK_ON_SUSPEND |
+		 IRQCHIP_SKIP_SET_WAKE,
 };
 
 asmlinkage void __exception_irq_entry icoll_handle_irq(struct pt_regs *regs)
@@ -183,7 +187,7 @@ static void __iomem * __init icoll_init_
 	void __iomem *icoll_base;
 
 	icoll_base = of_io_request_and_map(np, 0, np->name);
-	if (!icoll_base)
+	if (IS_ERR(icoll_base))
 		panic("%s: unable to map resource", np->full_name);
 	return icoll_base;
 }
@@ -241,6 +245,7 @@ static int __init asm9260_of_init(struct
 		writel(0, icoll_priv.intr + i);
 
 	icoll_add_domain(np, ASM9260_NUM_IRQS);
+	set_handle_irq(icoll_handle_irq);
 
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/irqchip/irq-omap-intc.c linux-libre-4.4.107-gnu/drivers/irqchip/irq-omap-intc.c
--- linux-libre-4.4-gnu/drivers/irqchip/irq-omap-intc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/irqchip/irq-omap-intc.c	2017-12-20 04:05:01.000000000 -0500
@@ -47,6 +47,7 @@
 #define INTC_ILR0		0x0100
 
 #define ACTIVEIRQ_MASK		0x7f	/* omap2/3 active interrupt bits */
+#define SPURIOUSIRQ_MASK	(0x1ffffff << 7)
 #define INTCPS_NR_ILR_REGS	128
 #define INTCPS_NR_MIR_REGS	4
 
@@ -330,11 +331,35 @@ static int __init omap_init_irq(u32 base
 static asmlinkage void __exception_irq_entry
 omap_intc_handle_irq(struct pt_regs *regs)
 {
+	extern unsigned long irq_err_count;
 	u32 irqnr;
 
 	irqnr = intc_readl(INTC_SIR);
+
+	/*
+	 * A spurious IRQ can result if interrupt that triggered the
+	 * sorting is no longer active during the sorting (10 INTC
+	 * functional clock cycles after interrupt assertion). Or a
+	 * change in interrupt mask affected the result during sorting
+	 * time. There is no special handling required except ignoring
+	 * the SIR register value just read and retrying.
+	 * See section 6.2.5 of AM335x TRM Literature Number: SPRUH73K
+	 *
+	 * Many a times, a spurious interrupt situation has been fixed
+	 * by adding a flush for the posted write acking the IRQ in
+	 * the device driver. Typically, this is going be the device
+	 * driver whose interrupt was handled just before the spurious
+	 * IRQ occurred. Pay attention to those device drivers if you
+	 * run into hitting the spurious IRQ condition below.
+	 */
+	if (unlikely((irqnr & SPURIOUSIRQ_MASK) == SPURIOUSIRQ_MASK)) {
+		pr_err_once("%s: spurious irq!\n", __func__);
+		irq_err_count++;
+		omap_ack_irq(NULL);
+		return;
+	}
+
 	irqnr &= ACTIVEIRQ_MASK;
-	WARN_ONCE(!irqnr, "Spurious IRQ ?\n");
 	handle_domain_irq(domain, irqnr, regs);
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/irqchip/irq-sunxi-nmi.c linux-libre-4.4.107-gnu/drivers/irqchip/irq-sunxi-nmi.c
--- linux-libre-4.4-gnu/drivers/irqchip/irq-sunxi-nmi.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/irqchip/irq-sunxi-nmi.c	2017-12-20 04:05:01.000000000 -0500
@@ -154,9 +154,9 @@ static int __init sunxi_sc_nmi_irq_init(
 
 	gc = irq_get_domain_generic_chip(domain, 0);
 	gc->reg_base = of_io_request_and_map(node, 0, of_node_full_name(node));
-	if (!gc->reg_base) {
+	if (IS_ERR(gc->reg_base)) {
 		pr_err("unable to map resource\n");
-		ret = -ENOMEM;
+		ret = PTR_ERR(gc->reg_base);
 		goto fail_irqd_remove;
 	}
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/irqchip/irq-xtensa-mx.c linux-libre-4.4.107-gnu/drivers/irqchip/irq-xtensa-mx.c
--- linux-libre-4.4-gnu/drivers/irqchip/irq-xtensa-mx.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/irqchip/irq-xtensa-mx.c	2017-12-20 04:05:01.000000000 -0500
@@ -142,7 +142,7 @@ static struct irq_chip xtensa_mx_irq_chi
 int __init xtensa_mx_init_legacy(struct device_node *interrupt_parent)
 {
 	struct irq_domain *root_domain =
-		irq_domain_add_legacy(NULL, NR_IRQS, 0, 0,
+		irq_domain_add_legacy(NULL, NR_IRQS - 1, 1, 0,
 				&xtensa_mx_irq_domain_ops,
 				&xtensa_mx_irq_chip);
 	irq_set_default_host(root_domain);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/irqchip/irq-xtensa-pic.c linux-libre-4.4.107-gnu/drivers/irqchip/irq-xtensa-pic.c
--- linux-libre-4.4-gnu/drivers/irqchip/irq-xtensa-pic.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/irqchip/irq-xtensa-pic.c	2017-12-20 04:05:01.000000000 -0500
@@ -89,7 +89,7 @@ static struct irq_chip xtensa_irq_chip =
 int __init xtensa_pic_init_legacy(struct device_node *interrupt_parent)
 {
 	struct irq_domain *root_domain =
-		irq_domain_add_legacy(NULL, NR_IRQS, 0, 0,
+		irq_domain_add_legacy(NULL, NR_IRQS - 1, 1, 0,
 				&xtensa_irq_domain_ops, &xtensa_irq_chip);
 	irq_set_default_host(root_domain);
 	return 0;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/isdn/gigaset/bas-gigaset.c linux-libre-4.4.107-gnu/drivers/isdn/gigaset/bas-gigaset.c
--- linux-libre-4.4-gnu/drivers/isdn/gigaset/bas-gigaset.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/isdn/gigaset/bas-gigaset.c	2017-12-20 04:05:01.000000000 -0500
@@ -2317,6 +2317,9 @@ static int gigaset_probe(struct usb_inte
 		return -ENODEV;
 	}
 
+	if (hostif->desc.bNumEndpoints < 1)
+		return -ENODEV;
+
 	dev_info(&udev->dev,
 		 "%s: Device matched (Vendor: 0x%x, Product: 0x%x)\n",
 		 __func__, le16_to_cpu(udev->descriptor.idVendor),
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/isdn/gigaset/ser-gigaset.c linux-libre-4.4.107-gnu/drivers/isdn/gigaset/ser-gigaset.c
--- linux-libre-4.4-gnu/drivers/isdn/gigaset/ser-gigaset.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/isdn/gigaset/ser-gigaset.c	2017-12-20 04:05:01.000000000 -0500
@@ -762,8 +762,10 @@ static int __init ser_gigaset_init(void)
 	driver = gigaset_initdriver(GIGASET_MINOR, GIGASET_MINORS,
 				    GIGASET_MODULENAME, GIGASET_DEVNAME,
 				    &ops, THIS_MODULE);
-	if (!driver)
+	if (!driver) {
+		rc = -ENOMEM;
 		goto error;
+	}
 
 	rc = tty_register_ldisc(N_GIGASET_M101, &gigaset_ldisc);
 	if (rc != 0) {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/isdn/hardware/eicon/message.c linux-libre-4.4.107-gnu/drivers/isdn/hardware/eicon/message.c
--- linux-libre-4.4-gnu/drivers/isdn/hardware/eicon/message.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/isdn/hardware/eicon/message.c	2017-12-20 04:05:01.000000000 -0500
@@ -11304,7 +11304,8 @@ static void mixer_notify_update(PLCI *pl
 				((CAPI_MSG *) msg)->header.ncci = 0;
 				((CAPI_MSG *) msg)->info.facility_req.Selector = SELECTOR_LINE_INTERCONNECT;
 				((CAPI_MSG *) msg)->info.facility_req.structs[0] = 3;
-				PUT_WORD(&(((CAPI_MSG *) msg)->info.facility_req.structs[1]), LI_REQ_SILENT_UPDATE);
+				((CAPI_MSG *) msg)->info.facility_req.structs[1] = LI_REQ_SILENT_UPDATE & 0xff;
+				((CAPI_MSG *) msg)->info.facility_req.structs[2] = LI_REQ_SILENT_UPDATE >> 8;
 				((CAPI_MSG *) msg)->info.facility_req.structs[3] = 0;
 				w = api_put(notify_plci->appl, (CAPI_MSG *) msg);
 				if (w != _QUEUE_FULL)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/isdn/i4l/isdn_common.c linux-libre-4.4.107-gnu/drivers/isdn/i4l/isdn_common.c
--- linux-libre-4.4-gnu/drivers/isdn/i4l/isdn_common.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/isdn/i4l/isdn_common.c	2017-12-20 04:05:01.000000000 -0500
@@ -1379,6 +1379,7 @@ isdn_ioctl(struct file *file, uint cmd,
 			if (arg) {
 				if (copy_from_user(bname, argp, sizeof(bname) - 1))
 					return -EFAULT;
+				bname[sizeof(bname)-1] = 0;
 			} else
 				return -EINVAL;
 			ret = mutex_lock_interruptible(&dev->mtx);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/isdn/i4l/isdn_net.c linux-libre-4.4.107-gnu/drivers/isdn/i4l/isdn_net.c
--- linux-libre-4.4-gnu/drivers/isdn/i4l/isdn_net.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/isdn/i4l/isdn_net.c	2017-12-20 04:05:01.000000000 -0500
@@ -2611,10 +2611,9 @@ isdn_net_newslave(char *parm)
 	char newname[10];
 
 	if (p) {
-		/* Slave-Name MUST not be empty */
-		if (!strlen(p + 1))
+		/* Slave-Name MUST not be empty or overflow 'newname' */
+		if (strscpy(newname, p + 1, sizeof(newname)) <= 0)
 			return NULL;
-		strcpy(newname, p + 1);
 		*p = 0;
 		/* Master must already exist */
 		if (!(n = isdn_net_findif(parm)))
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/isdn/i4l/isdn_ppp.c linux-libre-4.4.107-gnu/drivers/isdn/i4l/isdn_ppp.c
--- linux-libre-4.4-gnu/drivers/isdn/i4l/isdn_ppp.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/isdn/i4l/isdn_ppp.c	2017-12-20 04:05:01.000000000 -0500
@@ -828,7 +828,6 @@ isdn_ppp_write(int min, struct file *fil
 	isdn_net_local *lp;
 	struct ippp_struct *is;
 	int proto;
-	unsigned char protobuf[4];
 
 	is = file->private_data;
 
@@ -842,24 +841,28 @@ isdn_ppp_write(int min, struct file *fil
 	if (!lp)
 		printk(KERN_DEBUG "isdn_ppp_write: lp == NULL\n");
 	else {
-		/*
-		 * Don't reset huptimer for
-		 * LCP packets. (Echo requests).
-		 */
-		if (copy_from_user(protobuf, buf, 4))
-			return -EFAULT;
-		proto = PPP_PROTOCOL(protobuf);
-		if (proto != PPP_LCP)
-			lp->huptimer = 0;
+		if (lp->isdn_device < 0 || lp->isdn_channel < 0) {
+			unsigned char protobuf[4];
+			/*
+			 * Don't reset huptimer for
+			 * LCP packets. (Echo requests).
+			 */
+			if (copy_from_user(protobuf, buf, 4))
+				return -EFAULT;
+
+			proto = PPP_PROTOCOL(protobuf);
+			if (proto != PPP_LCP)
+				lp->huptimer = 0;
 
-		if (lp->isdn_device < 0 || lp->isdn_channel < 0)
 			return 0;
+		}
 
 		if ((dev->drv[lp->isdn_device]->flags & DRV_FLAG_RUNNING) &&
 		    lp->dialstate == 0 &&
 		    (lp->flags & ISDN_NET_CONNECTED)) {
 			unsigned short hl;
 			struct sk_buff *skb;
+			unsigned char *cpy_buf;
 			/*
 			 * we need to reserve enough space in front of
 			 * sk_buff. old call to dev_alloc_skb only reserved
@@ -872,11 +875,21 @@ isdn_ppp_write(int min, struct file *fil
 				return count;
 			}
 			skb_reserve(skb, hl);
-			if (copy_from_user(skb_put(skb, count), buf, count))
+			cpy_buf = skb_put(skb, count);
+			if (copy_from_user(cpy_buf, buf, count))
 			{
 				kfree_skb(skb);
 				return -EFAULT;
 			}
+
+			/*
+			 * Don't reset huptimer for
+			 * LCP packets. (Echo requests).
+			 */
+			proto = PPP_PROTOCOL(cpy_buf);
+			if (proto != PPP_LCP)
+				lp->huptimer = 0;
+
 			if (is->debug & 0x40) {
 				printk(KERN_DEBUG "ppp xmit: len %d\n", (int) skb->len);
 				isdn_ppp_frame_log("xmit", skb->data, skb->len, 32, is->unit, lp->ppp_slot);
@@ -2364,7 +2377,7 @@ static struct ippp_ccp_reset_state *isdn
 		       id);
 		return NULL;
 	} else {
-		rs = kzalloc(sizeof(struct ippp_ccp_reset_state), GFP_KERNEL);
+		rs = kzalloc(sizeof(struct ippp_ccp_reset_state), GFP_ATOMIC);
 		if (!rs)
 			return NULL;
 		rs->state = CCPResetIdle;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/leds/leds-ktd2692.c linux-libre-4.4.107-gnu/drivers/leds/leds-ktd2692.c
--- linux-libre-4.4-gnu/drivers/leds/leds-ktd2692.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/leds/leds-ktd2692.c	2017-12-20 04:05:01.000000000 -0500
@@ -296,15 +296,15 @@ static int ktd2692_parse_dt(struct ktd26
 		return -ENXIO;
 
 	led->ctrl_gpio = devm_gpiod_get(dev, "ctrl", GPIOD_ASIS);
-	if (IS_ERR(led->ctrl_gpio)) {
-		ret = PTR_ERR(led->ctrl_gpio);
+	ret = PTR_ERR_OR_ZERO(led->ctrl_gpio);
+	if (ret) {
 		dev_err(dev, "cannot get ctrl-gpios %d\n", ret);
 		return ret;
 	}
 
 	led->aux_gpio = devm_gpiod_get(dev, "aux", GPIOD_ASIS);
-	if (IS_ERR(led->aux_gpio)) {
-		ret = PTR_ERR(led->aux_gpio);
+	ret = PTR_ERR_OR_ZERO(led->aux_gpio);
+	if (ret) {
 		dev_err(dev, "cannot get aux-gpios %d\n", ret);
 		return ret;
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/lightnvm/gennvm.c linux-libre-4.4.107-gnu/drivers/lightnvm/gennvm.c
--- linux-libre-4.4-gnu/drivers/lightnvm/gennvm.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/lightnvm/gennvm.c	2017-12-20 04:05:01.000000000 -0500
@@ -89,6 +89,7 @@ static int gennvm_block_bb(struct ppa_ad
 
 		list_move_tail(&blk->list, &lun->bb_list);
 		lun->vlun.nr_bad_blocks++;
+		lun->vlun.nr_free_blocks--;
 	}
 
 	return 0;
@@ -345,7 +346,7 @@ static void gennvm_generic_to_addr_mode(
 static int gennvm_submit_io(struct nvm_dev *dev, struct nvm_rq *rqd)
 {
 	if (!dev->ops->submit_io)
-		return 0;
+		return -ENODEV;
 
 	/* Convert address space */
 	gennvm_generic_to_addr_mode(dev, rqd);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/lightnvm/rrpc.c linux-libre-4.4.107-gnu/drivers/lightnvm/rrpc.c
--- linux-libre-4.4-gnu/drivers/lightnvm/rrpc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/lightnvm/rrpc.c	2017-12-20 04:05:01.000000000 -0500
@@ -287,6 +287,10 @@ static int rrpc_move_valid_pages(struct
 	}
 
 	page = mempool_alloc(rrpc->page_pool, GFP_NOIO);
+	if (!page) {
+		bio_put(bio);
+		return -ENOMEM;
+	}
 
 	while ((slot = find_first_zero_bit(rblk->invalid_pages,
 					    nr_pgs_per_blk)) < nr_pgs_per_blk) {
@@ -427,7 +431,7 @@ static void rrpc_lun_gc(struct work_stru
 	if (nr_blocks_need < rrpc->nr_luns)
 		nr_blocks_need = rrpc->nr_luns;
 
-	spin_lock(&lun->lock);
+	spin_lock(&rlun->lock);
 	while (nr_blocks_need > lun->nr_free_blocks &&
 					!list_empty(&rlun->prio_list)) {
 		struct rrpc_block *rblock = block_prio_find_max(rlun);
@@ -436,16 +440,16 @@ static void rrpc_lun_gc(struct work_stru
 		if (!rblock->nr_invalid_pages)
 			break;
 
+		gcb = mempool_alloc(rrpc->gcb_pool, GFP_ATOMIC);
+		if (!gcb)
+			break;
+
 		list_del_init(&rblock->prio);
 
 		BUG_ON(!block_is_full(rrpc, rblock));
 
 		pr_debug("rrpc: selected block '%lu' for GC\n", block->id);
 
-		gcb = mempool_alloc(rrpc->gcb_pool, GFP_ATOMIC);
-		if (!gcb)
-			break;
-
 		gcb->rrpc = rrpc;
 		gcb->rblk = rblock;
 		INIT_WORK(&gcb->ws_gc, rrpc_block_gc);
@@ -454,7 +458,7 @@ static void rrpc_lun_gc(struct work_stru
 
 		nr_blocks_need--;
 	}
-	spin_unlock(&lun->lock);
+	spin_unlock(&rlun->lock);
 
 	/* TODO: Hint that request queue can be started again */
 }
@@ -650,11 +654,12 @@ static int rrpc_end_io(struct nvm_rq *rq
 	if (bio_data_dir(rqd->bio) == WRITE)
 		rrpc_end_io_write(rrpc, rrqd, laddr, npages);
 
+	bio_put(rqd->bio);
+
 	if (rrqd->flags & NVM_IOTYPE_GC)
 		return 0;
 
 	rrpc_unlock_rq(rrpc, rqd);
-	bio_put(rqd->bio);
 
 	if (npages > 1)
 		nvm_dev_dma_free(rrpc->dev, rqd->ppa_list, rqd->dma_ppa_list);
@@ -841,6 +846,13 @@ static int rrpc_submit_io(struct rrpc *r
 	err = nvm_submit_io(rrpc->dev, rqd);
 	if (err) {
 		pr_err("rrpc: I/O submission failed: %d\n", err);
+		bio_put(bio);
+		if (!(flags & NVM_IOTYPE_GC)) {
+			rrpc_unlock_rq(rrpc, rqd);
+			if (rqd->nr_pages > 1)
+				nvm_dev_dma_free(rrpc->dev,
+			rqd->ppa_list, rqd->dma_ppa_list);
+		}
 		return NVM_IO_ERR;
 	}
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/mailbox/mailbox.c linux-libre-4.4.107-gnu/drivers/mailbox/mailbox.c
--- linux-libre-4.4-gnu/drivers/mailbox/mailbox.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/mailbox/mailbox.c	2017-12-20 04:05:01.000000000 -0500
@@ -104,11 +104,14 @@ static void tx_tick(struct mbox_chan *ch
 	/* Submit next message */
 	msg_submit(chan);
 
+	if (!mssg)
+		return;
+
 	/* Notify the client */
-	if (mssg && chan->cl->tx_done)
+	if (chan->cl->tx_done)
 		chan->cl->tx_done(chan->cl, mssg, r);
 
-	if (chan->cl->tx_block)
+	if (r != -ETIME && chan->cl->tx_block)
 		complete(&chan->tx_complete);
 }
 
@@ -261,7 +264,7 @@ int mbox_send_message(struct mbox_chan *
 
 	msg_submit(chan);
 
-	if (chan->cl->tx_block && chan->active_req) {
+	if (chan->cl->tx_block) {
 		unsigned long wait;
 		int ret;
 
@@ -272,8 +275,8 @@ int mbox_send_message(struct mbox_chan *
 
 		ret = wait_for_completion_timeout(&chan->tx_complete, wait);
 		if (ret == 0) {
-			t = -EIO;
-			tx_tick(chan, -EIO);
+			t = -ETIME;
+			tx_tick(chan, t);
 		}
 	}
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/Makefile linux-libre-4.4.107-gnu/drivers/Makefile
--- linux-libre-4.4-gnu/drivers/Makefile	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/Makefile	2017-12-20 04:05:01.000000000 -0500
@@ -98,6 +98,7 @@ obj-$(CONFIG_USB_PHY)		+= usb/
 obj-$(CONFIG_USB)		+= usb/
 obj-$(CONFIG_PCI)		+= usb/
 obj-$(CONFIG_USB_GADGET)	+= usb/
+obj-$(CONFIG_OF)		+= usb/
 obj-$(CONFIG_SERIO)		+= input/serio/
 obj-$(CONFIG_GAMEPORT)		+= input/gameport/
 obj-$(CONFIG_INPUT)		+= input/
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/mcb/mcb-parse.c linux-libre-4.4.107-gnu/drivers/mcb/mcb-parse.c
--- linux-libre-4.4-gnu/drivers/mcb/mcb-parse.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/mcb/mcb-parse.c	2017-12-20 04:05:01.000000000 -0500
@@ -57,7 +57,7 @@ static int chameleon_parse_gdd(struct mc
 	mdev->id = GDD_DEV(reg1);
 	mdev->rev = GDD_REV(reg1);
 	mdev->var = GDD_VAR(reg1);
-	mdev->bar = GDD_BAR(reg1);
+	mdev->bar = GDD_BAR(reg2);
 	mdev->group = GDD_GRP(reg2);
 	mdev->inst = GDD_INS(reg2);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/md/bcache/alloc.c linux-libre-4.4.107-gnu/drivers/md/bcache/alloc.c
--- linux-libre-4.4-gnu/drivers/md/bcache/alloc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/md/bcache/alloc.c	2017-12-20 04:05:01.000000000 -0500
@@ -406,7 +406,8 @@ long bch_bucket_alloc(struct cache *ca,
 
 	finish_wait(&ca->set->bucket_wait, &w);
 out:
-	wake_up_process(ca->alloc_thread);
+	if (ca->alloc_thread)
+		wake_up_process(ca->alloc_thread);
 
 	trace_bcache_alloc(ca, reserve);
 
@@ -478,7 +479,7 @@ int __bch_bucket_alloc_set(struct cache_
 		if (b == -1)
 			goto err;
 
-		k->ptr[i] = PTR(ca->buckets[b].gen,
+		k->ptr[i] = MAKE_PTR(ca->buckets[b].gen,
 				bucket_to_sector(c, b),
 				ca->sb.nr_this_dev);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/md/bcache/bcache.h linux-libre-4.4.107-gnu/drivers/md/bcache/bcache.h
--- linux-libre-4.4-gnu/drivers/md/bcache/bcache.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/md/bcache/bcache.h	2017-12-20 04:05:01.000000000 -0500
@@ -333,6 +333,7 @@ struct cached_dev {
 	/* Limit number of writeback bios in flight */
 	struct semaphore	in_flight;
 	struct task_struct	*writeback_thread;
+	struct workqueue_struct	*writeback_write_wq;
 
 	struct keybuf		writeback_keys;
 
@@ -425,7 +426,7 @@ struct cache {
 	 * until a gc finishes - otherwise we could pointlessly burn a ton of
 	 * cpu
 	 */
-	unsigned		invalidate_needs_gc:1;
+	unsigned		invalidate_needs_gc;
 
 	bool			discard; /* Get rid of? */
 
@@ -593,8 +594,8 @@ struct cache_set {
 
 	/* Counts how many sectors bio_insert has added to the cache */
 	atomic_t		sectors_to_gc;
+	wait_queue_head_t	gc_wait;
 
-	wait_queue_head_t	moving_gc_wait;
 	struct keybuf		moving_gc_keys;
 	/* Number of moving GC bios in flight */
 	struct semaphore	moving_in_flight;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/md/bcache/btree.c linux-libre-4.4.107-gnu/drivers/md/bcache/btree.c
--- linux-libre-4.4-gnu/drivers/md/bcache/btree.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/md/bcache/btree.c	2017-12-20 04:05:01.000000000 -0500
@@ -1741,6 +1741,7 @@ static void bch_btree_gc(struct cache_se
 	do {
 		ret = btree_root(gc_root, c, &op, &writes, &stats);
 		closure_sync(&writes);
+		cond_resched();
 
 		if (ret && ret != -EAGAIN)
 			pr_warn("gc failed!");
@@ -1761,33 +1762,34 @@ static void bch_btree_gc(struct cache_se
 	bch_moving_gc(c);
 }
 
-static int bch_gc_thread(void *arg)
+static bool gc_should_run(struct cache_set *c)
 {
-	struct cache_set *c = arg;
 	struct cache *ca;
 	unsigned i;
 
-	while (1) {
-again:
-		bch_btree_gc(c);
+	for_each_cache(ca, c, i)
+		if (ca->invalidate_needs_gc)
+			return true;
 
-		set_current_state(TASK_INTERRUPTIBLE);
-		if (kthread_should_stop())
-			break;
+	if (atomic_read(&c->sectors_to_gc) < 0)
+		return true;
 
-		mutex_lock(&c->bucket_lock);
+	return false;
+}
 
-		for_each_cache(ca, c, i)
-			if (ca->invalidate_needs_gc) {
-				mutex_unlock(&c->bucket_lock);
-				set_current_state(TASK_RUNNING);
-				goto again;
-			}
+static int bch_gc_thread(void *arg)
+{
+	struct cache_set *c = arg;
 
-		mutex_unlock(&c->bucket_lock);
+	while (1) {
+		wait_event_interruptible(c->gc_wait,
+			   kthread_should_stop() || gc_should_run(c));
 
-		try_to_freeze();
-		schedule();
+		if (kthread_should_stop())
+			break;
+
+		set_gc_sectors(c);
+		bch_btree_gc(c);
 	}
 
 	return 0;
@@ -1795,11 +1797,10 @@ again:
 
 int bch_gc_thread_start(struct cache_set *c)
 {
-	c->gc_thread = kthread_create(bch_gc_thread, c, "bcache_gc");
+	c->gc_thread = kthread_run(bch_gc_thread, c, "bcache_gc");
 	if (IS_ERR(c->gc_thread))
 		return PTR_ERR(c->gc_thread);
 
-	set_task_state(c->gc_thread, TASK_INTERRUPTIBLE);
 	return 0;
 }
 
@@ -2162,8 +2163,10 @@ int bch_btree_insert_check_key(struct bt
 		rw_lock(true, b, b->level);
 
 		if (b->key.ptr[0] != btree_ptr ||
-		    b->seq != seq + 1)
+                   b->seq != seq + 1) {
+                       op->lock = b->level;
 			goto out;
+               }
 	}
 
 	SET_KEY_PTRS(check_key, 1);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/md/bcache/btree.h linux-libre-4.4.107-gnu/drivers/md/bcache/btree.h
--- linux-libre-4.4-gnu/drivers/md/bcache/btree.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/md/bcache/btree.h	2017-12-20 04:05:01.000000000 -0500
@@ -260,8 +260,7 @@ void bch_initial_mark_key(struct cache_s
 
 static inline void wake_up_gc(struct cache_set *c)
 {
-	if (c->gc_thread)
-		wake_up_process(c->gc_thread);
+	wake_up(&c->gc_wait);
 }
 
 #define MAP_DONE	0
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/md/bcache/extents.c linux-libre-4.4.107-gnu/drivers/md/bcache/extents.c
--- linux-libre-4.4-gnu/drivers/md/bcache/extents.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/md/bcache/extents.c	2017-12-20 04:05:01.000000000 -0500
@@ -584,7 +584,7 @@ static bool bch_extent_merge(struct btre
 		return false;
 
 	for (i = 0; i < KEY_PTRS(l); i++)
-		if (l->ptr[i] + PTR(0, KEY_SIZE(l), 0) != r->ptr[i] ||
+		if (l->ptr[i] + MAKE_PTR(0, KEY_SIZE(l), 0) != r->ptr[i] ||
 		    PTR_BUCKET_NR(b->c, l, i) != PTR_BUCKET_NR(b->c, r, i))
 			return false;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/md/bcache/journal.c linux-libre-4.4.107-gnu/drivers/md/bcache/journal.c
--- linux-libre-4.4-gnu/drivers/md/bcache/journal.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/md/bcache/journal.c	2017-12-20 04:05:01.000000000 -0500
@@ -508,7 +508,7 @@ static void journal_reclaim(struct cache
 			continue;
 
 		ja->cur_idx = next;
-		k->ptr[n++] = PTR(0,
+		k->ptr[n++] = MAKE_PTR(0,
 				  bucket_to_sector(c, ca->sb.d[ja->cur_idx]),
 				  ca->sb.nr_this_dev);
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/md/bcache/request.c linux-libre-4.4.107-gnu/drivers/md/bcache/request.c
--- linux-libre-4.4-gnu/drivers/md/bcache/request.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/md/bcache/request.c	2017-12-20 04:05:01.000000000 -0500
@@ -196,14 +196,12 @@ static void bch_data_insert_start(struct
 	struct data_insert_op *op = container_of(cl, struct data_insert_op, cl);
 	struct bio *bio = op->bio, *n;
 
-	if (atomic_sub_return(bio_sectors(bio), &op->c->sectors_to_gc) < 0) {
-		set_gc_sectors(op->c);
-		wake_up_gc(op->c);
-	}
-
 	if (op->bypass)
 		return bch_data_invalidate(cl);
 
+	if (atomic_sub_return(bio_sectors(bio), &op->c->sectors_to_gc) < 0)
+		wake_up_gc(op->c);
+
 	/*
 	 * Journal writes are marked REQ_FLUSH; if the original write was a
 	 * flush, it'll wait on the journal write.
@@ -470,6 +468,7 @@ struct search {
 	unsigned		recoverable:1;
 	unsigned		write:1;
 	unsigned		read_dirty_data:1;
+	unsigned		cache_missed:1;
 
 	unsigned long		start_time;
 
@@ -655,6 +654,7 @@ static inline struct search *search_allo
 
 	s->orig_bio		= bio;
 	s->cache_miss		= NULL;
+	s->cache_missed		= 0;
 	s->d			= d;
 	s->recoverable		= 1;
 	s->write		= (bio->bi_rw & REQ_WRITE) != 0;
@@ -710,7 +710,14 @@ static void cached_dev_read_error(struct
 	struct search *s = container_of(cl, struct search, cl);
 	struct bio *bio = &s->bio.bio;
 
-	if (s->recoverable) {
+	/*
+	 * If read request hit dirty data (s->read_dirty_data is true),
+	 * then recovery a failed read request from cached device may
+	 * get a stale data back. So read failure recovery is only
+	 * permitted when read request hit clean data in cache device,
+	 * or when cache read race happened.
+	 */
+	if (s->recoverable && !s->read_dirty_data) {
 		/* Retry from the backing device: */
 		trace_bcache_read_retry(s->orig_bio);
 
@@ -771,7 +778,7 @@ static void cached_dev_read_done_bh(stru
 	struct cached_dev *dc = container_of(s->d, struct cached_dev, disk);
 
 	bch_mark_cache_accounting(s->iop.c, s->d,
-				  !s->cache_miss, s->iop.bypass);
+				  !s->cache_missed, s->iop.bypass);
 	trace_bcache_read(s->orig_bio, !s->cache_miss, s->iop.bypass);
 
 	if (s->iop.error)
@@ -790,6 +797,8 @@ static int cached_dev_cache_miss(struct
 	struct cached_dev *dc = container_of(s->d, struct cached_dev, disk);
 	struct bio *miss, *cache_bio;
 
+	s->cache_missed = 1;
+
 	if (s->cache_miss || s->iop.bypass) {
 		miss = bio_next_split(bio, sectors, GFP_NOIO, s->d->bio_split);
 		ret = miss == bio ? MAP_DONE : MAP_CONTINUE;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/md/bcache/super.c linux-libre-4.4.107-gnu/drivers/md/bcache/super.c
--- linux-libre-4.4-gnu/drivers/md/bcache/super.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/md/bcache/super.c	2017-12-20 04:05:01.000000000 -0500
@@ -685,6 +685,8 @@ static void bcache_device_link(struct bc
 	WARN(sysfs_create_link(&d->kobj, &c->kobj, "cache") ||
 	     sysfs_create_link(&c->kobj, &d->kobj, d->name),
 	     "Couldn't create device <-> cache set symlinks");
+
+	clear_bit(BCACHE_DEV_UNLINK_DONE, &d->flags);
 }
 
 static void bcache_device_detach(struct bcache_device *d)
@@ -847,8 +849,11 @@ void bch_cached_dev_run(struct cached_de
 	buf[SB_LABEL_SIZE] = '\0';
 	env[2] = kasprintf(GFP_KERNEL, "CACHED_LABEL=%s", buf);
 
-	if (atomic_xchg(&dc->running, 1))
+	if (atomic_xchg(&dc->running, 1)) {
+		kfree(env[1]);
+		kfree(env[2]);
 		return;
+	}
 
 	if (!d->c &&
 	    BDEV_STATE(&dc->sb) != BDEV_STATE_NONE) {
@@ -1010,11 +1015,15 @@ int bch_cached_dev_attach(struct cached_
 	 */
 	atomic_set(&dc->count, 1);
 
-	if (bch_cached_dev_writeback_start(dc))
+	/* Block writeback thread, but spawn it */
+	down_write(&dc->writeback_lock);
+	if (bch_cached_dev_writeback_start(dc)) {
+		up_write(&dc->writeback_lock);
 		return -ENOMEM;
+	}
 
 	if (BDEV_STATE(&dc->sb) == BDEV_STATE_DIRTY) {
-		bch_sectors_dirty_init(dc);
+		bch_sectors_dirty_init(&dc->disk);
 		atomic_set(&dc->has_dirty, 1);
 		atomic_inc(&dc->count);
 		bch_writeback_queue(dc);
@@ -1023,6 +1032,9 @@ int bch_cached_dev_attach(struct cached_
 	bch_cached_dev_run(dc);
 	bcache_device_link(&dc->disk, c, "bdev");
 
+	/* Allow the writeback thread to proceed */
+	up_write(&dc->writeback_lock);
+
 	pr_info("Caching %s as %s on set %pU",
 		bdevname(dc->bdev, buf), dc->disk.disk->disk_name,
 		dc->disk.c->sb.set_uuid);
@@ -1044,6 +1056,8 @@ static void cached_dev_free(struct closu
 	cancel_delayed_work_sync(&dc->writeback_rate_update);
 	if (!IS_ERR_OR_NULL(dc->writeback_thread))
 		kthread_stop(dc->writeback_thread);
+	if (dc->writeback_write_wq)
+		destroy_workqueue(dc->writeback_write_wq);
 
 	mutex_lock(&bch_register_lock);
 
@@ -1215,6 +1229,7 @@ static int flash_dev_run(struct cache_se
 		goto err;
 
 	bcache_device_attach(d, c, u - c->uuids);
+	bch_sectors_dirty_init(d);
 	bch_flash_dev_request_init(d);
 	add_disk(d->disk);
 
@@ -1361,6 +1376,9 @@ static void cache_set_flush(struct closu
 	struct btree *b;
 	unsigned i;
 
+	if (!c)
+		closure_return(cl);
+
 	bch_cache_accounting_destroy(&c->accounting);
 
 	kobject_put(&c->internal);
@@ -1474,6 +1492,7 @@ struct cache_set *bch_cache_set_alloc(st
 	mutex_init(&c->bucket_lock);
 	init_waitqueue_head(&c->btree_cache_wait);
 	init_waitqueue_head(&c->bucket_wait);
+	init_waitqueue_head(&c->gc_wait);
 	sema_init(&c->uuid_write_mutex, 1);
 
 	spin_lock_init(&c->btree_gc_time.lock);
@@ -1532,6 +1551,7 @@ static void run_cache_set(struct cache_s
 
 	for_each_cache(ca, c, i)
 		c->nbuckets += ca->sb.nbuckets;
+	set_gc_sectors(c);
 
 	if (CACHE_SYNC(&c->sb)) {
 		LIST_HEAD(journal);
@@ -1803,7 +1823,7 @@ static int cache_alloc(struct cache_sb *
 	free = roundup_pow_of_two(ca->sb.nbuckets) >> 10;
 
 	if (!init_fifo(&ca->free[RESERVE_BTREE], 8, GFP_KERNEL) ||
-	    !init_fifo(&ca->free[RESERVE_PRIO], prio_buckets(ca), GFP_KERNEL) ||
+	    !init_fifo_exact(&ca->free[RESERVE_PRIO], prio_buckets(ca), GFP_KERNEL) ||
 	    !init_fifo(&ca->free[RESERVE_MOVINGGC], free, GFP_KERNEL) ||
 	    !init_fifo(&ca->free[RESERVE_NONE], free, GFP_KERNEL) ||
 	    !init_fifo(&ca->free_inc,	free << 2, GFP_KERNEL) ||
@@ -1823,11 +1843,12 @@ static int cache_alloc(struct cache_sb *
 	return 0;
 }
 
-static void register_cache(struct cache_sb *sb, struct page *sb_page,
+static int register_cache(struct cache_sb *sb, struct page *sb_page,
 				struct block_device *bdev, struct cache *ca)
 {
 	char name[BDEVNAME_SIZE];
-	const char *err = "cannot allocate memory";
+	const char *err = NULL;
+	int ret = 0;
 
 	memcpy(&ca->sb, sb, sizeof(struct cache_sb));
 	ca->bdev = bdev;
@@ -1842,27 +1863,35 @@ static void register_cache(struct cache_
 	if (blk_queue_discard(bdev_get_queue(ca->bdev)))
 		ca->discard = CACHE_DISCARD(&ca->sb);
 
-	if (cache_alloc(sb, ca) != 0)
+	ret = cache_alloc(sb, ca);
+	if (ret != 0)
 		goto err;
 
-	err = "error creating kobject";
-	if (kobject_add(&ca->kobj, &part_to_dev(bdev->bd_part)->kobj, "bcache"))
-		goto err;
+	if (kobject_add(&ca->kobj, &part_to_dev(bdev->bd_part)->kobj, "bcache")) {
+		err = "error calling kobject_add";
+		ret = -ENOMEM;
+		goto out;
+	}
 
 	mutex_lock(&bch_register_lock);
 	err = register_cache_set(ca);
 	mutex_unlock(&bch_register_lock);
 
-	if (err)
-		goto err;
+	if (err) {
+		ret = -ENODEV;
+		goto out;
+	}
 
 	pr_info("registered cache device %s", bdevname(bdev, name));
+
 out:
 	kobject_put(&ca->kobj);
-	return;
+
 err:
-	pr_notice("error opening %s: %s", bdevname(bdev, name), err);
-	goto out;
+	if (err)
+		pr_notice("error opening %s: %s", bdevname(bdev, name), err);
+
+	return ret;
 }
 
 /* Global interfaces/init */
@@ -1933,6 +1962,10 @@ static ssize_t register_bcache(struct ko
 			else
 				err = "device busy";
 			mutex_unlock(&bch_register_lock);
+			if (!IS_ERR(bdev))
+				bdput(bdev);
+			if (attr == &ksysfs_register_quiet)
+				goto out;
 		}
 		goto err;
 	}
@@ -1958,7 +1991,8 @@ static ssize_t register_bcache(struct ko
 		if (!ca)
 			goto err_close;
 
-		register_cache(sb, sb_page, bdev, ca);
+		if (register_cache(sb, sb_page, bdev, ca) != 0)
+			goto err_close;
 	}
 out:
 	if (sb_page)
@@ -1971,8 +2005,7 @@ out:
 err_close:
 	blkdev_put(bdev, FMODE_READ|FMODE_WRITE|FMODE_EXCL);
 err:
-	if (attr != &ksysfs_register_quiet)
-		pr_info("error opening %s: %s", path, err);
+	pr_info("error opening %s: %s", path, err);
 	ret = -EINVAL;
 	goto out;
 }
@@ -2050,6 +2083,7 @@ static void bcache_exit(void)
 	if (bcache_major)
 		unregister_blkdev(bcache_major, "bcache");
 	unregister_reboot_notifier(&reboot);
+	mutex_destroy(&bch_register_lock);
 }
 
 static int __init bcache_init(void)
@@ -2066,14 +2100,17 @@ static int __init bcache_init(void)
 	closure_debug_init();
 
 	bcache_major = register_blkdev(0, "bcache");
-	if (bcache_major < 0)
+	if (bcache_major < 0) {
+		unregister_reboot_notifier(&reboot);
+		mutex_destroy(&bch_register_lock);
 		return bcache_major;
+	}
 
 	if (!(bcache_wq = create_workqueue("bcache")) ||
 	    !(bcache_kobj = kobject_create_and_add("bcache", fs_kobj)) ||
-	    sysfs_create_files(bcache_kobj, files) ||
 	    bch_request_init() ||
-	    bch_debug_init(bcache_kobj))
+	    bch_debug_init(bcache_kobj) ||
+	    sysfs_create_files(bcache_kobj, files))
 		goto err;
 
 	return 0;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/md/bcache/sysfs.c linux-libre-4.4.107-gnu/drivers/md/bcache/sysfs.c
--- linux-libre-4.4-gnu/drivers/md/bcache/sysfs.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/md/bcache/sysfs.c	2017-12-20 04:05:01.000000000 -0500
@@ -191,7 +191,7 @@ STORE(__cached_dev)
 {
 	struct cached_dev *dc = container_of(kobj, struct cached_dev,
 					     disk.kobj);
-	unsigned v = size;
+	ssize_t v = size;
 	struct cache_set *c;
 	struct kobj_uevent_env *env;
 
@@ -226,7 +226,7 @@ STORE(__cached_dev)
 		bch_cached_dev_run(dc);
 
 	if (attr == &sysfs_cache_mode) {
-		ssize_t v = bch_read_string_list(buf, bch_cache_modes + 1);
+		v = bch_read_string_list(buf, bch_cache_modes + 1);
 
 		if (v < 0)
 			return v;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/md/bcache/util.c linux-libre-4.4.107-gnu/drivers/md/bcache/util.c
--- linux-libre-4.4-gnu/drivers/md/bcache/util.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/md/bcache/util.c	2017-12-20 04:05:01.000000000 -0500
@@ -73,24 +73,44 @@ STRTO_H(strtouint, unsigned int)
 STRTO_H(strtoll, long long)
 STRTO_H(strtoull, unsigned long long)
 
+/**
+ * bch_hprint() - formats @v to human readable string for sysfs.
+ *
+ * @v - signed 64 bit integer
+ * @buf - the (at least 8 byte) buffer to format the result into.
+ *
+ * Returns the number of bytes used by format.
+ */
 ssize_t bch_hprint(char *buf, int64_t v)
 {
 	static const char units[] = "?kMGTPEZY";
-	char dec[4] = "";
-	int u, t = 0;
+	int u = 0, t;
 
-	for (u = 0; v >= 1024 || v <= -1024; u++) {
-		t = v & ~(~0 << 10);
-		v >>= 10;
-	}
+	uint64_t q;
 
-	if (!u)
-		return sprintf(buf, "%llu", v);
+	if (v < 0)
+		q = -v;
+	else
+		q = v;
 
-	if (v < 100 && v > -100)
-		snprintf(dec, sizeof(dec), ".%i", t / 100);
+	/* For as long as the number is more than 3 digits, but at least
+	 * once, shift right / divide by 1024.  Keep the remainder for
+	 * a digit after the decimal point.
+	 */
+	do {
+		u++;
 
-	return sprintf(buf, "%lli%s%c", v, dec, units[u]);
+		t = q & ~(~0 << 10);
+		q >>= 10;
+	} while (q >= 1000);
+
+	if (v < 0)
+		/* '-', up to 3 digits, '.', 1 digit, 1 character, null;
+		 * yields 8 bytes.
+		 */
+		return sprintf(buf, "-%llu.%i%c", q, t * 10 / 1024, units[u]);
+	else
+		return sprintf(buf, "%llu.%i%c", q, t * 10 / 1024, units[u]);
 }
 
 ssize_t bch_snprint_string_list(char *buf, size_t size, const char * const list[],
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/md/bcache/writeback.c linux-libre-4.4.107-gnu/drivers/md/bcache/writeback.c
--- linux-libre-4.4-gnu/drivers/md/bcache/writeback.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/md/bcache/writeback.c	2017-12-20 04:05:01.000000000 -0500
@@ -21,7 +21,8 @@
 static void __update_writeback_rate(struct cached_dev *dc)
 {
 	struct cache_set *c = dc->disk.c;
-	uint64_t cache_sectors = c->nbuckets * c->sb.bucket_size;
+	uint64_t cache_sectors = c->nbuckets * c->sb.bucket_size -
+				bcache_flash_devs_sectors_dirty(c);
 	uint64_t cache_dirty_target =
 		div_u64(cache_sectors * dc->writeback_percent, 100);
 
@@ -190,7 +191,7 @@ static void write_dirty(struct closure *
 
 	closure_bio_submit(&io->bio, cl);
 
-	continue_at(cl, write_dirty_finish, system_wq);
+	continue_at(cl, write_dirty_finish, io->dc->writeback_write_wq);
 }
 
 static void read_dirty_endio(struct bio *bio)
@@ -210,7 +211,7 @@ static void read_dirty_submit(struct clo
 
 	closure_bio_submit(&io->bio, cl);
 
-	continue_at(cl, write_dirty, system_wq);
+	continue_at(cl, write_dirty, io->dc->writeback_write_wq);
 }
 
 static void read_dirty(struct cached_dev *dc)
@@ -323,6 +324,10 @@ void bcache_dev_sectors_dirty_add(struct
 
 static bool dirty_pred(struct keybuf *buf, struct bkey *k)
 {
+	struct cached_dev *dc = container_of(buf, struct cached_dev, writeback_keys);
+
+	BUG_ON(KEY_INODE(k) != dc->disk.id);
+
 	return KEY_DIRTY(k);
 }
 
@@ -372,11 +377,24 @@ next:
 	}
 }
 
+/*
+ * Returns true if we scanned the entire disk
+ */
 static bool refill_dirty(struct cached_dev *dc)
 {
 	struct keybuf *buf = &dc->writeback_keys;
+	struct bkey start = KEY(dc->disk.id, 0, 0);
 	struct bkey end = KEY(dc->disk.id, MAX_KEY_OFFSET, 0);
-	bool searched_from_start = false;
+	struct bkey start_pos;
+
+	/*
+	 * make sure keybuf pos is inside the range for this disk - at bringup
+	 * we might not be attached yet so this disk's inode nr isn't
+	 * initialized then
+	 */
+	if (bkey_cmp(&buf->last_scanned, &start) < 0 ||
+	    bkey_cmp(&buf->last_scanned, &end) > 0)
+		buf->last_scanned = start;
 
 	if (dc->partial_stripes_expensive) {
 		refill_full_stripes(dc);
@@ -384,14 +402,20 @@ static bool refill_dirty(struct cached_d
 			return false;
 	}
 
-	if (bkey_cmp(&buf->last_scanned, &end) >= 0) {
-		buf->last_scanned = KEY(dc->disk.id, 0, 0);
-		searched_from_start = true;
-	}
-
+	start_pos = buf->last_scanned;
 	bch_refill_keybuf(dc->disk.c, buf, &end, dirty_pred);
 
-	return bkey_cmp(&buf->last_scanned, &end) >= 0 && searched_from_start;
+	if (bkey_cmp(&buf->last_scanned, &end) < 0)
+		return false;
+
+	/*
+	 * If we get to the end start scanning again from the beginning, and
+	 * only scan up to where we initially started scanning from:
+	 */
+	buf->last_scanned = start;
+	bch_refill_keybuf(dc->disk.c, buf, &start_pos, dirty_pred);
+
+	return bkey_cmp(&buf->last_scanned, &start_pos) >= 0;
 }
 
 static int bch_writeback_thread(void *arg)
@@ -465,17 +489,17 @@ static int sectors_dirty_init_fn(struct
 	return MAP_CONTINUE;
 }
 
-void bch_sectors_dirty_init(struct cached_dev *dc)
+void bch_sectors_dirty_init(struct bcache_device *d)
 {
 	struct sectors_dirty_init op;
 
 	bch_btree_op_init(&op.op, -1);
-	op.inode = dc->disk.id;
+	op.inode = d->id;
 
-	bch_btree_map_keys(&op.op, dc->disk.c, &KEY(op.inode, 0, 0),
+	bch_btree_map_keys(&op.op, d->c, &KEY(op.inode, 0, 0),
 			   sectors_dirty_init_fn, 0);
 
-	dc->disk.sectors_dirty_last = bcache_dev_sectors_dirty(&dc->disk);
+	d->sectors_dirty_last = bcache_dev_sectors_dirty(d);
 }
 
 void bch_cached_dev_writeback_init(struct cached_dev *dc)
@@ -499,6 +523,11 @@ void bch_cached_dev_writeback_init(struc
 
 int bch_cached_dev_writeback_start(struct cached_dev *dc)
 {
+	dc->writeback_write_wq = alloc_workqueue("bcache_writeback_wq",
+						WQ_MEM_RECLAIM, 0);
+	if (!dc->writeback_write_wq)
+		return -ENOMEM;
+
 	dc->writeback_thread = kthread_create(bch_writeback_thread, dc,
 					      "bcache_writeback");
 	if (IS_ERR(dc->writeback_thread))
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/md/bcache/writeback.h linux-libre-4.4.107-gnu/drivers/md/bcache/writeback.h
--- linux-libre-4.4-gnu/drivers/md/bcache/writeback.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/md/bcache/writeback.h	2017-12-20 04:05:01.000000000 -0500
@@ -14,6 +14,25 @@ static inline uint64_t bcache_dev_sector
 	return ret;
 }
 
+static inline uint64_t  bcache_flash_devs_sectors_dirty(struct cache_set *c)
+{
+	uint64_t i, ret = 0;
+
+	mutex_lock(&bch_register_lock);
+
+	for (i = 0; i < c->nr_uuids; i++) {
+		struct bcache_device *d = c->devices[i];
+
+		if (!d || !UUID_FLASH_ONLY(&c->uuids[i]))
+			continue;
+	   ret += bcache_dev_sectors_dirty(d);
+	}
+
+	mutex_unlock(&bch_register_lock);
+
+	return ret;
+}
+
 static inline unsigned offset_to_stripe(struct bcache_device *d,
 					uint64_t offset)
 {
@@ -63,7 +82,8 @@ static inline bool should_writeback(stru
 
 static inline void bch_writeback_queue(struct cached_dev *dc)
 {
-	wake_up_process(dc->writeback_thread);
+	if (!IS_ERR_OR_NULL(dc->writeback_thread))
+		wake_up_process(dc->writeback_thread);
 }
 
 static inline void bch_writeback_add(struct cached_dev *dc)
@@ -84,7 +104,7 @@ static inline void bch_writeback_add(str
 
 void bcache_dev_sectors_dirty_add(struct cache_set *, unsigned, uint64_t, int);
 
-void bch_sectors_dirty_init(struct cached_dev *dc);
+void bch_sectors_dirty_init(struct bcache_device *);
 void bch_cached_dev_writeback_init(struct cached_dev *);
 int bch_cached_dev_writeback_start(struct cached_dev *);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/md/bitmap.c linux-libre-4.4.107-gnu/drivers/md/bitmap.c
--- linux-libre-4.4-gnu/drivers/md/bitmap.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/md/bitmap.c	2017-12-20 04:05:01.000000000 -0500
@@ -1960,6 +1960,11 @@ int bitmap_resize(struct bitmap *bitmap,
 	long pages;
 	struct bitmap_page *new_bp;
 
+	if (bitmap->storage.file && !init) {
+		pr_info("md: cannot resize file-based bitmap\n");
+		return -EINVAL;
+	}
+
 	if (chunksize == 0) {
 		/* If there is enough space, leave the chunk size unchanged,
 		 * else increase by factor of two until there is enough space.
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/md/dm-bufio.c linux-libre-4.4.107-gnu/drivers/md/dm-bufio.c
--- linux-libre-4.4-gnu/drivers/md/dm-bufio.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/md/dm-bufio.c	2017-12-20 04:05:01.000000000 -0500
@@ -222,7 +222,7 @@ static DEFINE_SPINLOCK(param_spinlock);
  * Buffers are freed after this timeout
  */
 static unsigned dm_bufio_max_age = DM_BUFIO_DEFAULT_AGE_SECS;
-static unsigned dm_bufio_retain_bytes = DM_BUFIO_DEFAULT_RETAIN_BYTES;
+static unsigned long dm_bufio_retain_bytes = DM_BUFIO_DEFAULT_RETAIN_BYTES;
 
 static unsigned long dm_bufio_peak_allocated;
 static unsigned long dm_bufio_allocated_kmem_cache;
@@ -914,10 +914,11 @@ static void __get_memory_limit(struct dm
 {
 	unsigned long buffers;
 
-	if (ACCESS_ONCE(dm_bufio_cache_size) != dm_bufio_cache_size_latch) {
-		mutex_lock(&dm_bufio_clients_lock);
-		__cache_size_refresh();
-		mutex_unlock(&dm_bufio_clients_lock);
+	if (unlikely(ACCESS_ONCE(dm_bufio_cache_size) != dm_bufio_cache_size_latch)) {
+		if (mutex_trylock(&dm_bufio_clients_lock)) {
+			__cache_size_refresh();
+			mutex_unlock(&dm_bufio_clients_lock);
+		}
 	}
 
 	buffers = dm_bufio_cache_size_per_client >>
@@ -927,7 +928,8 @@ static void __get_memory_limit(struct dm
 		buffers = c->minimum_buffers;
 
 	*limit_buffers = buffers;
-	*threshold_buffers = buffers * DM_BUFIO_WRITEBACK_PERCENT / 100;
+	*threshold_buffers = mult_frac(buffers,
+				       DM_BUFIO_WRITEBACK_PERCENT, 100);
 }
 
 /*
@@ -1513,10 +1515,10 @@ static bool __try_evict_buffer(struct dm
 	return true;
 }
 
-static unsigned get_retain_buffers(struct dm_bufio_client *c)
+static unsigned long get_retain_buffers(struct dm_bufio_client *c)
 {
-        unsigned retain_bytes = ACCESS_ONCE(dm_bufio_retain_bytes);
-        return retain_bytes / c->block_size;
+        unsigned long retain_bytes = ACCESS_ONCE(dm_bufio_retain_bytes);
+        return retain_bytes >> (c->sectors_per_block_bits + SECTOR_SHIFT);
 }
 
 static unsigned long __scan(struct dm_bufio_client *c, unsigned long nr_to_scan,
@@ -1526,7 +1528,7 @@ static unsigned long __scan(struct dm_bu
 	struct dm_buffer *b, *tmp;
 	unsigned long freed = 0;
 	unsigned long count = nr_to_scan;
-	unsigned retain_target = get_retain_buffers(c);
+	unsigned long retain_target = get_retain_buffers(c);
 
 	for (l = 0; l < LIST_SIZE; l++) {
 		list_for_each_entry_safe_reverse(b, tmp, &c->lru[l], lru_list) {
@@ -1752,11 +1754,19 @@ static bool older_than(struct dm_buffer
 static void __evict_old_buffers(struct dm_bufio_client *c, unsigned long age_hz)
 {
 	struct dm_buffer *b, *tmp;
-	unsigned retain_target = get_retain_buffers(c);
-	unsigned count;
+	unsigned long retain_target = get_retain_buffers(c);
+	unsigned long count;
+	LIST_HEAD(write_list);
 
 	dm_bufio_lock(c);
 
+	__check_watermark(c, &write_list);
+	if (unlikely(!list_empty(&write_list))) {
+		dm_bufio_unlock(c);
+		__flush_write_list(&write_list);
+		dm_bufio_lock(c);
+	}
+
 	count = c->n_buffers[LIST_CLEAN] + c->n_buffers[LIST_DIRTY];
 	list_for_each_entry_safe_reverse(b, tmp, &c->lru[LIST_CLEAN], lru_list) {
 		if (count <= retain_target)
@@ -1781,6 +1791,8 @@ static void cleanup_old_buffers(void)
 
 	mutex_lock(&dm_bufio_clients_lock);
 
+	__cache_size_refresh();
+
 	list_for_each_entry(c, &dm_bufio_all_clients, client_list)
 		__evict_old_buffers(c, max_age_hz);
 
@@ -1818,19 +1830,15 @@ static int __init dm_bufio_init(void)
 	memset(&dm_bufio_caches, 0, sizeof dm_bufio_caches);
 	memset(&dm_bufio_cache_names, 0, sizeof dm_bufio_cache_names);
 
-	mem = (__u64)((totalram_pages - totalhigh_pages) *
-		      DM_BUFIO_MEMORY_PERCENT / 100) << PAGE_SHIFT;
+	mem = (__u64)mult_frac(totalram_pages - totalhigh_pages,
+			       DM_BUFIO_MEMORY_PERCENT, 100) << PAGE_SHIFT;
 
 	if (mem > ULONG_MAX)
 		mem = ULONG_MAX;
 
 #ifdef CONFIG_MMU
-	/*
-	 * Get the size of vmalloc space the same way as VMALLOC_TOTAL
-	 * in fs/proc/internal.h
-	 */
-	if (mem > (VMALLOC_END - VMALLOC_START) * DM_BUFIO_VMALLOC_PERCENT / 100)
-		mem = (VMALLOC_END - VMALLOC_START) * DM_BUFIO_VMALLOC_PERCENT / 100;
+	if (mem > mult_frac(VMALLOC_TOTAL, DM_BUFIO_VMALLOC_PERCENT, 100))
+		mem = mult_frac(VMALLOC_TOTAL, DM_BUFIO_VMALLOC_PERCENT, 100);
 #endif
 
 	dm_bufio_default_cache_size = mem;
@@ -1904,7 +1912,7 @@ MODULE_PARM_DESC(max_cache_size_bytes, "
 module_param_named(max_age_seconds, dm_bufio_max_age, uint, S_IRUGO | S_IWUSR);
 MODULE_PARM_DESC(max_age_seconds, "Max age of a buffer in seconds");
 
-module_param_named(retain_bytes, dm_bufio_retain_bytes, uint, S_IRUGO | S_IWUSR);
+module_param_named(retain_bytes, dm_bufio_retain_bytes, ulong, S_IRUGO | S_IWUSR);
 MODULE_PARM_DESC(retain_bytes, "Try to keep at least this many bytes cached in memory");
 
 module_param_named(peak_allocated_bytes, dm_bufio_peak_allocated, ulong, S_IRUGO | S_IWUSR);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/md/dm.c linux-libre-4.4.107-gnu/drivers/md/dm.c
--- linux-libre-4.4-gnu/drivers/md/dm.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/md/dm.c	2017-12-20 04:05:01.000000000 -0500
@@ -1109,12 +1109,8 @@ static void rq_completed(struct mapped_d
 	 * back into ->request_fn() could deadlock attempting to grab the
 	 * queue lock again.
 	 */
-	if (run_queue) {
-		if (md->queue->mq_ops)
-			blk_mq_run_hw_queues(md->queue, true);
-		else
-			blk_run_queue_async(md->queue);
-	}
+	if (!md->queue->mq_ops && run_queue)
+		blk_run_queue_async(md->queue);
 
 	/*
 	 * dm_put() must be at the end of this function. See the comment above
@@ -1191,6 +1187,8 @@ static void dm_unprep_request(struct req
 
 	if (clone)
 		free_rq_clone(clone);
+	else if (!tio->md->queue->mq_ops)
+		free_rq_tio(tio);
 }
 
 /*
@@ -1212,9 +1210,9 @@ static void dm_requeue_original_request(
 {
 	int rw = rq_data_dir(rq);
 
+	rq_end_stats(md, rq);
 	dm_unprep_request(rq);
 
-	rq_end_stats(md, rq);
 	if (!rq->q->mq_ops)
 		old_requeue_request(rq);
 	else {
@@ -1334,7 +1332,10 @@ static void dm_complete_request(struct r
 	struct dm_rq_target_io *tio = tio_from_request(rq);
 
 	tio->error = error;
-	blk_complete_request(rq);
+	if (!rq->q->mq_ops)
+		blk_complete_request(rq);
+	else
+		blk_mq_complete_request(rq, error);
 }
 
 /*
@@ -1466,11 +1467,65 @@ void dm_accept_partial_bio(struct bio *b
 }
 EXPORT_SYMBOL_GPL(dm_accept_partial_bio);
 
+/*
+ * Flush current->bio_list when the target map method blocks.
+ * This fixes deadlocks in snapshot and possibly in other targets.
+ */
+struct dm_offload {
+	struct blk_plug plug;
+	struct blk_plug_cb cb;
+};
+
+static void flush_current_bio_list(struct blk_plug_cb *cb, bool from_schedule)
+{
+	struct dm_offload *o = container_of(cb, struct dm_offload, cb);
+	struct bio_list list;
+	struct bio *bio;
+	int i;
+
+	INIT_LIST_HEAD(&o->cb.list);
+
+	if (unlikely(!current->bio_list))
+		return;
+
+	for (i = 0; i < 2; i++) {
+		list = current->bio_list[i];
+		bio_list_init(&current->bio_list[i]);
+
+		while ((bio = bio_list_pop(&list))) {
+			struct bio_set *bs = bio->bi_pool;
+			if (unlikely(!bs) || bs == fs_bio_set) {
+				bio_list_add(&current->bio_list[i], bio);
+				continue;
+			}
+
+			spin_lock(&bs->rescue_lock);
+			bio_list_add(&bs->rescue_list, bio);
+			queue_work(bs->rescue_workqueue, &bs->rescue_work);
+			spin_unlock(&bs->rescue_lock);
+		}
+	}
+}
+
+static void dm_offload_start(struct dm_offload *o)
+{
+	blk_start_plug(&o->plug);
+	o->cb.callback = flush_current_bio_list;
+	list_add(&o->cb.list, &current->plug->cb_list);
+}
+
+static void dm_offload_end(struct dm_offload *o)
+{
+	list_del(&o->cb.list);
+	blk_finish_plug(&o->plug);
+}
+
 static void __map_bio(struct dm_target_io *tio)
 {
 	int r;
 	sector_t sector;
 	struct mapped_device *md;
+	struct dm_offload o;
 	struct bio *clone = &tio->clone;
 	struct dm_target *ti = tio->ti;
 
@@ -1483,7 +1538,11 @@ static void __map_bio(struct dm_target_i
 	 */
 	atomic_inc(&tio->io->io_count);
 	sector = clone->bi_iter.bi_sector;
+
+	dm_offload_start(&o);
 	r = ti->type->map(ti, clone);
+	dm_offload_end(&o);
+
 	if (r == DM_MAPIO_REMAPPED) {
 		/* the bio has been remapped so dispatch it */
 
@@ -2259,8 +2318,6 @@ static void cleanup_mapped_device(struct
 	if (md->bs)
 		bioset_free(md->bs);
 
-	cleanup_srcu_struct(&md->io_barrier);
-
 	if (md->disk) {
 		spin_lock(&_minor_lock);
 		md->disk->private_data = NULL;
@@ -2272,6 +2329,8 @@ static void cleanup_mapped_device(struct
 	if (md->queue)
 		blk_cleanup_queue(md->queue);
 
+	cleanup_srcu_struct(&md->io_barrier);
+
 	if (md->bdev) {
 		bdput(md->bdev);
 		md->bdev = NULL;
@@ -2868,6 +2927,7 @@ EXPORT_SYMBOL_GPL(dm_device_name);
 
 static void __dm_destroy(struct mapped_device *md, bool wait)
 {
+	struct request_queue *q = dm_get_md_queue(md);
 	struct dm_table *map;
 	int srcu_idx;
 
@@ -2878,6 +2938,10 @@ static void __dm_destroy(struct mapped_d
 	set_bit(DMF_FREEING, &md->flags);
 	spin_unlock(&_minor_lock);
 
+	spin_lock_irq(q->queue_lock);
+	queue_flag_set(QUEUE_FLAG_DYING, q);
+	spin_unlock_irq(q->queue_lock);
+
 	if (dm_request_based(md) && md->kworker_task)
 		flush_kthread_worker(&md->kworker);
 
@@ -3077,7 +3141,8 @@ static void unlock_fs(struct mapped_devi
  * Caller must hold md->suspend_lock
  */
 static int __dm_suspend(struct mapped_device *md, struct dm_table *map,
-			unsigned suspend_flags, int interruptible)
+			unsigned suspend_flags, int interruptible,
+			int dmf_suspended_flag)
 {
 	bool do_lockfs = suspend_flags & DM_SUSPEND_LOCKFS_FLAG;
 	bool noflush = suspend_flags & DM_SUSPEND_NOFLUSH_FLAG;
@@ -3144,6 +3209,8 @@ static int __dm_suspend(struct mapped_de
 	 * to finish.
 	 */
 	r = dm_wait_for_completion(md, interruptible);
+	if (!r)
+		set_bit(dmf_suspended_flag, &md->flags);
 
 	if (noflush)
 		clear_bit(DMF_NOFLUSH_SUSPENDING, &md->flags);
@@ -3205,12 +3272,10 @@ retry:
 
 	map = rcu_dereference_protected(md->map, lockdep_is_held(&md->suspend_lock));
 
-	r = __dm_suspend(md, map, suspend_flags, TASK_INTERRUPTIBLE);
+	r = __dm_suspend(md, map, suspend_flags, TASK_INTERRUPTIBLE, DMF_SUSPENDED);
 	if (r)
 		goto out_unlock;
 
-	set_bit(DMF_SUSPENDED, &md->flags);
-
 	dm_table_postsuspend_targets(map);
 
 out_unlock:
@@ -3243,10 +3308,11 @@ static int __dm_resume(struct mapped_dev
 
 int dm_resume(struct mapped_device *md)
 {
-	int r = -EINVAL;
+	int r;
 	struct dm_table *map = NULL;
 
 retry:
+	r = -EINVAL;
 	mutex_lock_nested(&md->suspend_lock, SINGLE_DEPTH_NESTING);
 
 	if (!dm_suspended_md(md))
@@ -3270,8 +3336,6 @@ retry:
 		goto out;
 
 	clear_bit(DMF_SUSPENDED, &md->flags);
-
-	r = 0;
 out:
 	mutex_unlock(&md->suspend_lock);
 
@@ -3304,9 +3368,8 @@ static void __dm_internal_suspend(struct
 	 * would require changing .presuspend to return an error -- avoid this
 	 * until there is a need for more elaborate variants of internal suspend.
 	 */
-	(void) __dm_suspend(md, map, suspend_flags, TASK_UNINTERRUPTIBLE);
-
-	set_bit(DMF_SUSPENDED_INTERNALLY, &md->flags);
+	(void) __dm_suspend(md, map, suspend_flags, TASK_UNINTERRUPTIBLE,
+			    DMF_SUSPENDED_INTERNALLY);
 
 	dm_table_postsuspend_targets(map);
 }
@@ -3444,11 +3507,15 @@ struct mapped_device *dm_get_from_kobjec
 
 	md = container_of(kobj, struct mapped_device, kobj_holder.kobj);
 
-	if (test_bit(DMF_FREEING, &md->flags) ||
-	    dm_deleting_md(md))
-		return NULL;
-
+	spin_lock(&_minor_lock);
+	if (test_bit(DMF_FREEING, &md->flags) || dm_deleting_md(md)) {
+		md = NULL;
+		goto out;
+	}
 	dm_get(md);
+out:
+	spin_unlock(&_minor_lock);
+
 	return md;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/md/dm-cache-metadata.c linux-libre-4.4.107-gnu/drivers/md/dm-cache-metadata.c
--- linux-libre-4.4-gnu/drivers/md/dm-cache-metadata.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/md/dm-cache-metadata.c	2017-12-20 04:05:01.000000000 -0500
@@ -867,18 +867,55 @@ static int blocks_are_unmapped_or_clean(
 	return 0;
 }
 
-#define WRITE_LOCK(cmd) \
-	if (cmd->fail_io || dm_bm_is_read_only(cmd->bm)) \
-		return -EINVAL; \
-	down_write(&cmd->root_lock)
+static bool cmd_write_lock(struct dm_cache_metadata *cmd)
+{
+	down_write(&cmd->root_lock);
+	if (cmd->fail_io || dm_bm_is_read_only(cmd->bm)) {
+		up_write(&cmd->root_lock);
+		return false;
+	}
+	return true;
+}
 
-#define WRITE_LOCK_VOID(cmd) \
-	if (cmd->fail_io || dm_bm_is_read_only(cmd->bm)) \
-		return; \
-	down_write(&cmd->root_lock)
+#define WRITE_LOCK(cmd)				\
+	do {					\
+		if (!cmd_write_lock((cmd)))	\
+			return -EINVAL;		\
+	} while(0)
+
+#define WRITE_LOCK_VOID(cmd)			\
+	do {					\
+		if (!cmd_write_lock((cmd)))	\
+			return;			\
+	} while(0)
 
 #define WRITE_UNLOCK(cmd) \
-	up_write(&cmd->root_lock)
+	up_write(&(cmd)->root_lock)
+
+static bool cmd_read_lock(struct dm_cache_metadata *cmd)
+{
+	down_read(&cmd->root_lock);
+	if (cmd->fail_io) {
+		up_read(&cmd->root_lock);
+		return false;
+	}
+	return true;
+}
+
+#define READ_LOCK(cmd)				\
+	do {					\
+		if (!cmd_read_lock((cmd)))	\
+			return -EINVAL;		\
+	} while(0)
+
+#define READ_LOCK_VOID(cmd)			\
+	do {					\
+		if (!cmd_read_lock((cmd)))	\
+			return;			\
+	} while(0)
+
+#define READ_UNLOCK(cmd) \
+	up_read(&(cmd)->root_lock)
 
 int dm_cache_resize(struct dm_cache_metadata *cmd, dm_cblock_t new_cache_size)
 {
@@ -1015,22 +1052,20 @@ int dm_cache_load_discards(struct dm_cac
 {
 	int r;
 
-	down_read(&cmd->root_lock);
+	READ_LOCK(cmd);
 	r = __load_discards(cmd, fn, context);
-	up_read(&cmd->root_lock);
+	READ_UNLOCK(cmd);
 
 	return r;
 }
 
-dm_cblock_t dm_cache_size(struct dm_cache_metadata *cmd)
+int dm_cache_size(struct dm_cache_metadata *cmd, dm_cblock_t *result)
 {
-	dm_cblock_t r;
-
-	down_read(&cmd->root_lock);
-	r = cmd->cache_blocks;
-	up_read(&cmd->root_lock);
+	READ_LOCK(cmd);
+	*result = cmd->cache_blocks;
+	READ_UNLOCK(cmd);
 
-	return r;
+	return 0;
 }
 
 static int __remove(struct dm_cache_metadata *cmd, dm_cblock_t cblock)
@@ -1188,9 +1223,9 @@ int dm_cache_load_mappings(struct dm_cac
 {
 	int r;
 
-	down_read(&cmd->root_lock);
+	READ_LOCK(cmd);
 	r = __load_mappings(cmd, policy, fn, context);
-	up_read(&cmd->root_lock);
+	READ_UNLOCK(cmd);
 
 	return r;
 }
@@ -1215,18 +1250,18 @@ static int __dump_mappings(struct dm_cac
 
 void dm_cache_dump(struct dm_cache_metadata *cmd)
 {
-	down_read(&cmd->root_lock);
+	READ_LOCK_VOID(cmd);
 	__dump_mappings(cmd);
-	up_read(&cmd->root_lock);
+	READ_UNLOCK(cmd);
 }
 
 int dm_cache_changed_this_transaction(struct dm_cache_metadata *cmd)
 {
 	int r;
 
-	down_read(&cmd->root_lock);
+	READ_LOCK(cmd);
 	r = cmd->changed;
-	up_read(&cmd->root_lock);
+	READ_UNLOCK(cmd);
 
 	return r;
 }
@@ -1276,9 +1311,9 @@ int dm_cache_set_dirty(struct dm_cache_m
 void dm_cache_metadata_get_stats(struct dm_cache_metadata *cmd,
 				 struct dm_cache_statistics *stats)
 {
-	down_read(&cmd->root_lock);
+	READ_LOCK_VOID(cmd);
 	*stats = cmd->stats;
-	up_read(&cmd->root_lock);
+	READ_UNLOCK(cmd);
 }
 
 void dm_cache_metadata_set_stats(struct dm_cache_metadata *cmd,
@@ -1291,17 +1326,19 @@ void dm_cache_metadata_set_stats(struct
 
 int dm_cache_commit(struct dm_cache_metadata *cmd, bool clean_shutdown)
 {
-	int r;
+	int r = -EINVAL;
 	flags_mutator mutator = (clean_shutdown ? set_clean_shutdown :
 				 clear_clean_shutdown);
 
 	WRITE_LOCK(cmd);
+	if (cmd->fail_io)
+		goto out;
+
 	r = __commit_transaction(cmd, mutator);
 	if (r)
 		goto out;
 
 	r = __begin_transaction(cmd);
-
 out:
 	WRITE_UNLOCK(cmd);
 	return r;
@@ -1312,9 +1349,10 @@ int dm_cache_get_free_metadata_block_cou
 {
 	int r = -EINVAL;
 
-	down_read(&cmd->root_lock);
-	r = dm_sm_get_nr_free(cmd->metadata_sm, result);
-	up_read(&cmd->root_lock);
+	READ_LOCK(cmd);
+	if (!cmd->fail_io)
+		r = dm_sm_get_nr_free(cmd->metadata_sm, result);
+	READ_UNLOCK(cmd);
 
 	return r;
 }
@@ -1324,9 +1362,10 @@ int dm_cache_get_metadata_dev_size(struc
 {
 	int r = -EINVAL;
 
-	down_read(&cmd->root_lock);
-	r = dm_sm_get_nr_blocks(cmd->metadata_sm, result);
-	up_read(&cmd->root_lock);
+	READ_LOCK(cmd);
+	if (!cmd->fail_io)
+		r = dm_sm_get_nr_blocks(cmd->metadata_sm, result);
+	READ_UNLOCK(cmd);
 
 	return r;
 }
@@ -1417,7 +1456,13 @@ int dm_cache_write_hints(struct dm_cache
 
 int dm_cache_metadata_all_clean(struct dm_cache_metadata *cmd, bool *result)
 {
-	return blocks_are_unmapped_or_clean(cmd, 0, cmd->cache_blocks, result);
+	int r;
+
+	READ_LOCK(cmd);
+	r = blocks_are_unmapped_or_clean(cmd, 0, cmd->cache_blocks, result);
+	READ_UNLOCK(cmd);
+
+	return r;
 }
 
 void dm_cache_metadata_set_read_only(struct dm_cache_metadata *cmd)
@@ -1440,10 +1485,7 @@ int dm_cache_metadata_set_needs_check(st
 	struct dm_block *sblock;
 	struct cache_disk_superblock *disk_super;
 
-	/*
-	 * We ignore fail_io for this function.
-	 */
-	down_write(&cmd->root_lock);
+	WRITE_LOCK(cmd);
 	set_bit(NEEDS_CHECK, &cmd->flags);
 
 	r = superblock_lock(cmd, &sblock);
@@ -1458,19 +1500,17 @@ int dm_cache_metadata_set_needs_check(st
 	dm_bm_unlock(sblock);
 
 out:
-	up_write(&cmd->root_lock);
+	WRITE_UNLOCK(cmd);
 	return r;
 }
 
-bool dm_cache_metadata_needs_check(struct dm_cache_metadata *cmd)
+int dm_cache_metadata_needs_check(struct dm_cache_metadata *cmd, bool *result)
 {
-	bool needs_check;
-
-	down_read(&cmd->root_lock);
-	needs_check = !!test_bit(NEEDS_CHECK, &cmd->flags);
-	up_read(&cmd->root_lock);
+	READ_LOCK(cmd);
+	*result = !!test_bit(NEEDS_CHECK, &cmd->flags);
+	READ_UNLOCK(cmd);
 
-	return needs_check;
+	return 0;
 }
 
 int dm_cache_metadata_abort(struct dm_cache_metadata *cmd)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/md/dm-cache-metadata.h linux-libre-4.4.107-gnu/drivers/md/dm-cache-metadata.h
--- linux-libre-4.4-gnu/drivers/md/dm-cache-metadata.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/md/dm-cache-metadata.h	2017-12-20 04:05:01.000000000 -0500
@@ -66,7 +66,7 @@ void dm_cache_metadata_close(struct dm_c
  * origin blocks to map to.
  */
 int dm_cache_resize(struct dm_cache_metadata *cmd, dm_cblock_t new_cache_size);
-dm_cblock_t dm_cache_size(struct dm_cache_metadata *cmd);
+int dm_cache_size(struct dm_cache_metadata *cmd, dm_cblock_t *result);
 
 int dm_cache_discard_bitset_resize(struct dm_cache_metadata *cmd,
 				   sector_t discard_block_size,
@@ -137,7 +137,7 @@ int dm_cache_write_hints(struct dm_cache
  */
 int dm_cache_metadata_all_clean(struct dm_cache_metadata *cmd, bool *result);
 
-bool dm_cache_metadata_needs_check(struct dm_cache_metadata *cmd);
+int dm_cache_metadata_needs_check(struct dm_cache_metadata *cmd, bool *result);
 int dm_cache_metadata_set_needs_check(struct dm_cache_metadata *cmd);
 void dm_cache_metadata_set_read_only(struct dm_cache_metadata *cmd);
 void dm_cache_metadata_set_read_write(struct dm_cache_metadata *cmd);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/md/dm-cache-target.c linux-libre-4.4.107-gnu/drivers/md/dm-cache-target.c
--- linux-libre-4.4-gnu/drivers/md/dm-cache-target.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/md/dm-cache-target.c	2017-12-20 04:05:01.000000000 -0500
@@ -251,7 +251,7 @@ struct cache {
 	/*
 	 * Fields for converting from sectors to blocks.
 	 */
-	uint32_t sectors_per_block;
+	sector_t sectors_per_block;
 	int sectors_per_block_shift;
 
 	spinlock_t lock;
@@ -987,9 +987,14 @@ static void notify_mode_switch(struct ca
 
 static void set_cache_mode(struct cache *cache, enum cache_metadata_mode new_mode)
 {
-	bool needs_check = dm_cache_metadata_needs_check(cache->cmd);
+	bool needs_check;
 	enum cache_metadata_mode old_mode = get_cache_mode(cache);
 
+	if (dm_cache_metadata_needs_check(cache->cmd, &needs_check)) {
+		DMERR("unable to read needs_check flag, setting failure mode");
+		new_mode = CM_FAIL;
+	}
+
 	if (new_mode == CM_WRITE && needs_check) {
 		DMERR("%s: unable to switch cache to write mode until repaired.",
 		      cache_device_name(cache));
@@ -3513,6 +3518,7 @@ static void cache_status(struct dm_targe
 	char buf[BDEVNAME_SIZE];
 	struct cache *cache = ti->private;
 	dm_cblock_t residency;
+	bool needs_check;
 
 	switch (type) {
 	case STATUSTYPE_INFO:
@@ -3541,11 +3547,11 @@ static void cache_status(struct dm_targe
 
 		residency = policy_residency(cache->policy);
 
-		DMEMIT("%u %llu/%llu %u %llu/%llu %u %u %u %u %u %u %lu ",
+		DMEMIT("%u %llu/%llu %llu %llu/%llu %u %u %u %u %u %u %lu ",
 		       (unsigned)DM_CACHE_METADATA_BLOCK_SIZE,
 		       (unsigned long long)(nr_blocks_metadata - nr_free_blocks_metadata),
 		       (unsigned long long)nr_blocks_metadata,
-		       cache->sectors_per_block,
+		       (unsigned long long)cache->sectors_per_block,
 		       (unsigned long long) from_cblock(residency),
 		       (unsigned long long) from_cblock(cache->cache_size),
 		       (unsigned) atomic_read(&cache->stats.read_hit),
@@ -3586,7 +3592,9 @@ static void cache_status(struct dm_targe
 		else
 			DMEMIT("rw ");
 
-		if (dm_cache_metadata_needs_check(cache->cmd))
+		r = dm_cache_metadata_needs_check(cache->cmd, &needs_check);
+
+		if (r || needs_check)
 			DMEMIT("needs_check ");
 		else
 			DMEMIT("- ");
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/md/dm-crypt.c linux-libre-4.4.107-gnu/drivers/md/dm-crypt.c
--- linux-libre-4.4-gnu/drivers/md/dm-crypt.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/md/dm-crypt.c	2017-12-20 04:05:01.000000000 -0500
@@ -112,8 +112,7 @@ struct iv_tcw_private {
  * and encrypts / decrypts at the same time.
  */
 enum flags { DM_CRYPT_SUSPENDED, DM_CRYPT_KEY_VALID,
-	     DM_CRYPT_SAME_CPU, DM_CRYPT_NO_OFFLOAD,
-	     DM_CRYPT_EXIT_THREAD};
+	     DM_CRYPT_SAME_CPU, DM_CRYPT_NO_OFFLOAD };
 
 /*
  * The fields in here must be read only after initialization.
@@ -1204,18 +1203,20 @@ continue_locked:
 		if (!RB_EMPTY_ROOT(&cc->write_tree))
 			goto pop_from_list;
 
-		if (unlikely(test_bit(DM_CRYPT_EXIT_THREAD, &cc->flags))) {
-			spin_unlock_irq(&cc->write_thread_wait.lock);
-			break;
-		}
-
-		__set_current_state(TASK_INTERRUPTIBLE);
+		set_current_state(TASK_INTERRUPTIBLE);
 		__add_wait_queue(&cc->write_thread_wait, &wait);
 
 		spin_unlock_irq(&cc->write_thread_wait.lock);
 
+		if (unlikely(kthread_should_stop())) {
+			set_task_state(current, TASK_RUNNING);
+			remove_wait_queue(&cc->write_thread_wait, &wait);
+			break;
+		}
+
 		schedule();
 
+		set_task_state(current, TASK_RUNNING);
 		spin_lock_irq(&cc->write_thread_wait.lock);
 		__remove_wait_queue(&cc->write_thread_wait, &wait);
 		goto continue_locked;
@@ -1499,12 +1500,15 @@ static int crypt_set_key(struct crypt_co
 	if (!cc->key_size && strcmp(key, "-"))
 		goto out;
 
+	/* clear the flag since following operations may invalidate previously valid key */
+	clear_bit(DM_CRYPT_KEY_VALID, &cc->flags);
+
 	if (cc->key_size && crypt_decode_key(cc->key, key, cc->key_size) < 0)
 		goto out;
 
-	set_bit(DM_CRYPT_KEY_VALID, &cc->flags);
-
 	r = crypt_setkey_allcpus(cc);
+	if (!r)
+		set_bit(DM_CRYPT_KEY_VALID, &cc->flags);
 
 out:
 	/* Hex key string not needed after here, so wipe it. */
@@ -1530,13 +1534,8 @@ static void crypt_dtr(struct dm_target *
 	if (!cc)
 		return;
 
-	if (cc->write_thread) {
-		spin_lock_irq(&cc->write_thread_wait.lock);
-		set_bit(DM_CRYPT_EXIT_THREAD, &cc->flags);
-		wake_up_locked(&cc->write_thread_wait);
-		spin_unlock_irq(&cc->write_thread_wait.lock);
+	if (cc->write_thread)
 		kthread_stop(cc->write_thread);
-	}
 
 	if (cc->io_queue)
 		destroy_workqueue(cc->io_queue);
@@ -1920,6 +1919,13 @@ static int crypt_map(struct dm_target *t
 		return DM_MAPIO_REMAPPED;
 	}
 
+	/*
+	 * Check if bio is too large, split as needed.
+	 */
+	if (unlikely(bio->bi_iter.bi_size > (BIO_MAX_PAGES << PAGE_SHIFT)) &&
+	    bio_data_dir(bio) == WRITE)
+		dm_accept_partial_bio(bio, ((BIO_MAX_PAGES << PAGE_SHIFT) >> SECTOR_SHIFT));
+
 	io = dm_per_bio_data(bio, cc->per_bio_data_size);
 	crypt_io_init(io, cc, bio, dm_target_offset(ti, bio->bi_iter.bi_sector));
 	io->ctx.req = (struct ablkcipher_request *)(io + 1);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/md/dm-era-target.c linux-libre-4.4.107-gnu/drivers/md/dm-era-target.c
--- linux-libre-4.4-gnu/drivers/md/dm-era-target.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/md/dm-era-target.c	2017-12-20 04:05:01.000000000 -0500
@@ -961,15 +961,15 @@ static int metadata_commit(struct era_me
 		}
 	}
 
-	r = save_sm_root(md);
+	r = dm_tm_pre_commit(md->tm);
 	if (r) {
-		DMERR("%s: save_sm_root failed", __func__);
+		DMERR("%s: pre commit failed", __func__);
 		return r;
 	}
 
-	r = dm_tm_pre_commit(md->tm);
+	r = save_sm_root(md);
 	if (r) {
-		DMERR("%s: pre commit failed", __func__);
+		DMERR("%s: save_sm_root failed", __func__);
 		return r;
 	}
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/md/dm-exception-store.h linux-libre-4.4.107-gnu/drivers/md/dm-exception-store.h
--- linux-libre-4.4-gnu/drivers/md/dm-exception-store.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/md/dm-exception-store.h	2017-12-20 04:05:01.000000000 -0500
@@ -69,7 +69,7 @@ struct dm_exception_store_type {
 	 * Update the metadata with this exception.
 	 */
 	void (*commit_exception) (struct dm_exception_store *store,
-				  struct dm_exception *e,
+				  struct dm_exception *e, int valid,
 				  void (*callback) (void *, int success),
 				  void *callback_context);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/md/dm-flakey.c linux-libre-4.4.107-gnu/drivers/md/dm-flakey.c
--- linux-libre-4.4-gnu/drivers/md/dm-flakey.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/md/dm-flakey.c	2017-12-20 04:05:01.000000000 -0500
@@ -200,11 +200,13 @@ static int flakey_ctr(struct dm_target *
 
 	if (!(fc->up_interval + fc->down_interval)) {
 		ti->error = "Total (up + down) interval is zero";
+		r = -EINVAL;
 		goto bad;
 	}
 
 	if (fc->up_interval + fc->down_interval < fc->up_interval) {
 		ti->error = "Interval overflow";
+		r = -EINVAL;
 		goto bad;
 	}
 
@@ -289,10 +291,14 @@ static int flakey_map(struct dm_target *
 		pb->bio_submitted = true;
 
 		/*
-		 * Map reads as normal.
+		 * Error reads if neither corrupt_bio_byte or drop_writes are set.
+		 * Otherwise, flakey_end_io() will decide if the reads should be modified.
 		 */
-		if (bio_data_dir(bio) == READ)
+		if (bio_data_dir(bio) == READ) {
+			if (!fc->corrupt_bio_byte && !test_bit(DROP_WRITES, &fc->flags))
+				return -EIO;
 			goto map_bio;
+		}
 
 		/*
 		 * Drop writes?
@@ -328,14 +334,22 @@ static int flakey_end_io(struct dm_targe
 	struct flakey_c *fc = ti->private;
 	struct per_bio_data *pb = dm_per_bio_data(bio, sizeof(struct per_bio_data));
 
-	/*
-	 * Corrupt successful READs while in down state.
-	 * If flags were specified, only corrupt those that match.
-	 */
-	if (fc->corrupt_bio_byte && !error && pb->bio_submitted &&
-	    (bio_data_dir(bio) == READ) && (fc->corrupt_bio_rw == READ) &&
-	    all_corrupt_bio_flags_match(bio, fc))
-		corrupt_bio_data(bio, fc);
+	if (!error && pb->bio_submitted && (bio_data_dir(bio) == READ)) {
+		if (fc->corrupt_bio_byte && (fc->corrupt_bio_rw == READ) &&
+		    all_corrupt_bio_flags_match(bio, fc)) {
+			/*
+			 * Corrupt successful matching READs while in down state.
+			 */
+			corrupt_bio_data(bio, fc);
+
+		} else if (!test_bit(DROP_WRITES, &fc->flags)) {
+			/*
+			 * Error read during the down_interval if drop_writes
+			 * wasn't configured.
+			 */
+			return -EIO;
+		}
+	}
 
 	return error;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/md/dm-ioctl.c linux-libre-4.4.107-gnu/drivers/md/dm-ioctl.c
--- linux-libre-4.4-gnu/drivers/md/dm-ioctl.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/md/dm-ioctl.c	2017-12-20 04:05:01.000000000 -0500
@@ -1843,7 +1843,7 @@ static int ctl_ioctl(uint command, struc
 	if (r)
 		goto out;
 
-	param->data_size = sizeof(*param);
+	param->data_size = offsetof(struct dm_ioctl, data);
 	r = fn(param, input_param_size);
 
 	if (unlikely(param->flags & DM_BUFFER_FULL_FLAG) &&
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/md/dm-log-writes.c linux-libre-4.4.107-gnu/drivers/md/dm-log-writes.c
--- linux-libre-4.4-gnu/drivers/md/dm-log-writes.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/md/dm-log-writes.c	2017-12-20 04:05:01.000000000 -0500
@@ -258,12 +258,12 @@ static int log_one_block(struct log_writ
 		goto out;
 	sector++;
 
-	bio = bio_alloc(GFP_KERNEL, block->vec_cnt);
+	atomic_inc(&lc->io_blocks);
+	bio = bio_alloc(GFP_KERNEL, min(block->vec_cnt, BIO_MAX_PAGES));
 	if (!bio) {
 		DMERR("Couldn't alloc log bio");
 		goto error;
 	}
-	atomic_inc(&lc->io_blocks);
 	bio->bi_iter.bi_size = 0;
 	bio->bi_iter.bi_sector = sector;
 	bio->bi_bdev = lc->logdev->bdev;
@@ -280,7 +280,7 @@ static int log_one_block(struct log_writ
 		if (ret != block->vecs[i].bv_len) {
 			atomic_inc(&lc->io_blocks);
 			submit_bio(WRITE, bio);
-			bio = bio_alloc(GFP_KERNEL, block->vec_cnt - i);
+			bio = bio_alloc(GFP_KERNEL, min(block->vec_cnt - i, BIO_MAX_PAGES));
 			if (!bio) {
 				DMERR("Couldn't alloc log bio");
 				goto error;
@@ -456,9 +456,9 @@ static int log_writes_ctr(struct dm_targ
 		goto bad;
 	}
 
-	ret = -EINVAL;
 	lc->log_kthread = kthread_run(log_writes_kthread, lc, "log-write");
-	if (!lc->log_kthread) {
+	if (IS_ERR(lc->log_kthread)) {
+		ret = PTR_ERR(lc->log_kthread);
 		ti->error = "Couldn't alloc kthread";
 		dm_put_device(ti, lc->dev);
 		dm_put_device(ti, lc->logdev);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/md/dm-mpath.c linux-libre-4.4.107-gnu/drivers/md/dm-mpath.c
--- linux-libre-4.4-gnu/drivers/md/dm-mpath.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/md/dm-mpath.c	2017-12-20 04:05:01.000000000 -0500
@@ -1220,10 +1220,10 @@ static void activate_path(struct work_st
 {
 	struct pgpath *pgpath =
 		container_of(work, struct pgpath, activate_path.work);
+	struct request_queue *q = bdev_get_queue(pgpath->path.dev->bdev);
 
-	if (pgpath->is_active)
-		scsi_dh_activate(bdev_get_queue(pgpath->path.dev->bdev),
-				 pg_init_done, pgpath);
+	if (pgpath->is_active && !blk_queue_dying(q))
+		scsi_dh_activate(q, pg_init_done, pgpath);
 	else
 		pg_init_done(pgpath, SCSI_DH_DEV_OFFLINED);
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/md/dm-raid1.c linux-libre-4.4.107-gnu/drivers/md/dm-raid1.c
--- linux-libre-4.4-gnu/drivers/md/dm-raid1.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/md/dm-raid1.c	2017-12-20 04:05:01.000000000 -0500
@@ -1288,6 +1288,7 @@ static int mirror_end_io(struct dm_targe
 
 			dm_bio_restore(bd, bio);
 			bio_record->details.bi_bdev = NULL;
+			bio->bi_error = 0;
 
 			queue_bio(ms, bio, rw);
 			return DM_ENDIO_INCOMPLETE;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/md/dm-snap.c linux-libre-4.4.107-gnu/drivers/md/dm-snap.c
--- linux-libre-4.4-gnu/drivers/md/dm-snap.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/md/dm-snap.c	2017-12-20 04:05:01.000000000 -0500
@@ -1106,6 +1106,7 @@ static int snapshot_ctr(struct dm_target
 	int i;
 	int r = -EINVAL;
 	char *origin_path, *cow_path;
+	dev_t origin_dev, cow_dev;
 	unsigned args_used, num_flush_bios = 1;
 	fmode_t origin_mode = FMODE_READ;
 
@@ -1136,11 +1137,19 @@ static int snapshot_ctr(struct dm_target
 		ti->error = "Cannot get origin device";
 		goto bad_origin;
 	}
+	origin_dev = s->origin->bdev->bd_dev;
 
 	cow_path = argv[0];
 	argv++;
 	argc--;
 
+	cow_dev = dm_get_dev_t(cow_path);
+	if (cow_dev && cow_dev == origin_dev) {
+		ti->error = "COW device cannot be the same as origin device";
+		r = -EINVAL;
+		goto bad_cow;
+	}
+
 	r = dm_get_device(ti, cow_path, dm_table_get_mode(ti->table), &s->cow);
 	if (r) {
 		ti->error = "Cannot get COW device";
@@ -1438,8 +1447,9 @@ static void __invalidate_snapshot(struct
 	dm_table_event(s->ti->table);
 }
 
-static void pending_complete(struct dm_snap_pending_exception *pe, int success)
+static void pending_complete(void *context, int success)
 {
+	struct dm_snap_pending_exception *pe = context;
 	struct dm_exception *e;
 	struct dm_snapshot *s = pe->snap;
 	struct bio *origin_bios = NULL;
@@ -1509,24 +1519,13 @@ out:
 	free_pending_exception(pe);
 }
 
-static void commit_callback(void *context, int success)
-{
-	struct dm_snap_pending_exception *pe = context;
-
-	pending_complete(pe, success);
-}
-
 static void complete_exception(struct dm_snap_pending_exception *pe)
 {
 	struct dm_snapshot *s = pe->snap;
 
-	if (unlikely(pe->copy_error))
-		pending_complete(pe, 0);
-
-	else
-		/* Update the metadata if we are persistent */
-		s->store->type->commit_exception(s->store, &pe->e,
-						 commit_callback, pe);
+	/* Update the metadata if we are persistent */
+	s->store->type->commit_exception(s->store, &pe->e, !pe->copy_error,
+					 pending_complete, pe);
 }
 
 /*
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/md/dm-snap-persistent.c linux-libre-4.4.107-gnu/drivers/md/dm-snap-persistent.c
--- linux-libre-4.4-gnu/drivers/md/dm-snap-persistent.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/md/dm-snap-persistent.c	2017-12-20 04:05:01.000000000 -0500
@@ -695,7 +695,7 @@ static int persistent_prepare_exception(
 }
 
 static void persistent_commit_exception(struct dm_exception_store *store,
-					struct dm_exception *e,
+					struct dm_exception *e, int valid,
 					void (*callback) (void *, int success),
 					void *callback_context)
 {
@@ -704,6 +704,9 @@ static void persistent_commit_exception(
 	struct core_exception ce;
 	struct commit_callback *cb;
 
+	if (!valid)
+		ps->valid = 0;
+
 	ce.old_chunk = e->old_chunk;
 	ce.new_chunk = e->new_chunk;
 	write_exception(ps, ps->current_committed++, &ce);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/md/dm-snap-transient.c linux-libre-4.4.107-gnu/drivers/md/dm-snap-transient.c
--- linux-libre-4.4-gnu/drivers/md/dm-snap-transient.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/md/dm-snap-transient.c	2017-12-20 04:05:01.000000000 -0500
@@ -52,12 +52,12 @@ static int transient_prepare_exception(s
 }
 
 static void transient_commit_exception(struct dm_exception_store *store,
-				       struct dm_exception *e,
+				       struct dm_exception *e, int valid,
 				       void (*callback) (void *, int success),
 				       void *callback_context)
 {
 	/* Just succeed */
-	callback(callback_context, 1);
+	callback(callback_context, valid);
 }
 
 static void transient_usage(struct dm_exception_store *store,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/md/dm-stats.c linux-libre-4.4.107-gnu/drivers/md/dm-stats.c
--- linux-libre-4.4-gnu/drivers/md/dm-stats.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/md/dm-stats.c	2017-12-20 04:05:01.000000000 -0500
@@ -175,6 +175,7 @@ static void dm_stat_free(struct rcu_head
 	int cpu;
 	struct dm_stat *s = container_of(head, struct dm_stat, rcu_head);
 
+	kfree(s->histogram_boundaries);
 	kfree(s->program_id);
 	kfree(s->aux_data);
 	for_each_possible_cpu(cpu) {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/md/dm-table.c linux-libre-4.4.107-gnu/drivers/md/dm-table.c
--- linux-libre-4.4-gnu/drivers/md/dm-table.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/md/dm-table.c	2017-12-20 04:05:01.000000000 -0500
@@ -365,6 +365,26 @@ static int upgrade_mode(struct dm_dev_in
 }
 
 /*
+ * Convert the path to a device
+ */
+dev_t dm_get_dev_t(const char *path)
+{
+	dev_t uninitialized_var(dev);
+	struct block_device *bdev;
+
+	bdev = lookup_bdev(path);
+	if (IS_ERR(bdev))
+		dev = name_to_dev_t(path);
+	else {
+		dev = bdev->bd_dev;
+		bdput(bdev);
+	}
+
+	return dev;
+}
+EXPORT_SYMBOL_GPL(dm_get_dev_t);
+
+/*
  * Add a device to the list, or just increment the usage count if
  * it's already present.
  */
@@ -372,23 +392,15 @@ int dm_get_device(struct dm_target *ti,
 		  struct dm_dev **result)
 {
 	int r;
-	dev_t uninitialized_var(dev);
+	dev_t dev;
 	struct dm_dev_internal *dd;
 	struct dm_table *t = ti->table;
-	struct block_device *bdev;
 
 	BUG_ON(!t);
 
-	/* convert the path to a device */
-	bdev = lookup_bdev(path);
-	if (IS_ERR(bdev)) {
-		dev = name_to_dev_t(path);
-		if (!dev)
-			return -ENODEV;
-	} else {
-		dev = bdev->bd_dev;
-		bdput(bdev);
-	}
+	dev = dm_get_dev_t(path);
+	if (!dev)
+		return -ENODEV;
 
 	dd = find_device(&t->devices, dev);
 	if (!dd) {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/md/dm-thin.c linux-libre-4.4.107-gnu/drivers/md/dm-thin.c
--- linux-libre-4.4-gnu/drivers/md/dm-thin.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/md/dm-thin.c	2017-12-20 04:05:01.000000000 -0500
@@ -3453,8 +3453,8 @@ static void pool_postsuspend(struct dm_t
 	struct pool_c *pt = ti->private;
 	struct pool *pool = pt->pool;
 
-	cancel_delayed_work(&pool->waker);
-	cancel_delayed_work(&pool->no_space_timeout);
+	cancel_delayed_work_sync(&pool->waker);
+	cancel_delayed_work_sync(&pool->no_space_timeout);
 	flush_workqueue(pool->wq);
 	(void) commit(pool);
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/md/dm-thin-metadata.c linux-libre-4.4.107-gnu/drivers/md/dm-thin-metadata.c
--- linux-libre-4.4-gnu/drivers/md/dm-thin-metadata.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/md/dm-thin-metadata.c	2017-12-20 04:05:01.000000000 -0500
@@ -485,11 +485,11 @@ static int __write_initial_superblock(st
 	if (r < 0)
 		return r;
 
-	r = save_sm_roots(pmd);
+	r = dm_tm_pre_commit(pmd->tm);
 	if (r < 0)
 		return r;
 
-	r = dm_tm_pre_commit(pmd->tm);
+	r = save_sm_roots(pmd);
 	if (r < 0)
 		return r;
 
@@ -1943,5 +1943,8 @@ bool dm_pool_metadata_needs_check(struct
 
 void dm_pool_issue_prefetches(struct dm_pool_metadata *pmd)
 {
-	dm_tm_issue_prefetches(pmd->tm);
+	down_read(&pmd->root_lock);
+	if (!pmd->fail_io)
+		dm_tm_issue_prefetches(pmd->tm);
+	up_read(&pmd->root_lock);
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/md/Kconfig linux-libre-4.4.107-gnu/drivers/md/Kconfig
--- linux-libre-4.4-gnu/drivers/md/Kconfig	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/md/Kconfig	2017-12-20 04:05:01.000000000 -0500
@@ -357,6 +357,7 @@ config DM_LOG_USERSPACE
 config DM_RAID
        tristate "RAID 1/4/5/6/10 target"
        depends on BLK_DEV_DM
+       select MD_RAID0
        select MD_RAID1
        select MD_RAID10
        select MD_RAID456
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/md/linear.c linux-libre-4.4.107-gnu/drivers/md/linear.c
--- linux-libre-4.4-gnu/drivers/md/linear.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/md/linear.c	2017-12-20 04:05:01.000000000 -0500
@@ -52,18 +52,26 @@ static inline struct dev_info *which_dev
 	return conf->disks + lo;
 }
 
+/*
+ * In linear_congested() conf->raid_disks is used as a copy of
+ * mddev->raid_disks to iterate conf->disks[], because conf->raid_disks
+ * and conf->disks[] are created in linear_conf(), they are always
+ * consitent with each other, but mddev->raid_disks does not.
+ */
 static int linear_congested(struct mddev *mddev, int bits)
 {
 	struct linear_conf *conf;
 	int i, ret = 0;
 
-	conf = mddev->private;
+	rcu_read_lock();
+	conf = rcu_dereference(mddev->private);
 
-	for (i = 0; i < mddev->raid_disks && !ret ; i++) {
+	for (i = 0; i < conf->raid_disks && !ret ; i++) {
 		struct request_queue *q = bdev_get_queue(conf->disks[i].rdev->bdev);
 		ret |= bdi_congested(&q->backing_dev_info, bits);
 	}
 
+	rcu_read_unlock();
 	return ret;
 }
 
@@ -143,6 +151,19 @@ static struct linear_conf *linear_conf(s
 			conf->disks[i-1].end_sector +
 			conf->disks[i].rdev->sectors;
 
+	/*
+	 * conf->raid_disks is copy of mddev->raid_disks. The reason to
+	 * keep a copy of mddev->raid_disks in struct linear_conf is,
+	 * mddev->raid_disks may not be consistent with pointers number of
+	 * conf->disks[] when it is updated in linear_add() and used to
+	 * iterate old conf->disks[] earray in linear_congested().
+	 * Here conf->raid_disks is always consitent with number of
+	 * pointers in conf->disks[] array, and mddev->private is updated
+	 * with rcu_assign_pointer() in linear_addr(), such race can be
+	 * avoided.
+	 */
+	conf->raid_disks = raid_disks;
+
 	return conf;
 
 out:
@@ -195,15 +216,24 @@ static int linear_add(struct mddev *mdde
 	if (!newconf)
 		return -ENOMEM;
 
+	/* newconf->raid_disks already keeps a copy of * the increased
+	 * value of mddev->raid_disks, WARN_ONCE() is just used to make
+	 * sure of this. It is possible that oldconf is still referenced
+	 * in linear_congested(), therefore kfree_rcu() is used to free
+	 * oldconf until no one uses it anymore.
+	 */
 	mddev_suspend(mddev);
-	oldconf = mddev->private;
+	oldconf = rcu_dereference_protected(mddev->private,
+			lockdep_is_held(&mddev->reconfig_mutex));
 	mddev->raid_disks++;
-	mddev->private = newconf;
+	WARN_ONCE(mddev->raid_disks != newconf->raid_disks,
+		"copied raid_disks doesn't match mddev->raid_disks");
+	rcu_assign_pointer(mddev->private, newconf);
 	md_set_array_sectors(mddev, linear_size(mddev, 0, 0));
 	set_capacity(mddev->gendisk, mddev->array_sectors);
 	mddev_resume(mddev);
 	revalidate_disk(mddev->gendisk);
-	kfree(oldconf);
+	kfree_rcu(oldconf, rcu);
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/md/linear.h linux-libre-4.4.107-gnu/drivers/md/linear.h
--- linux-libre-4.4-gnu/drivers/md/linear.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/md/linear.h	2017-12-20 04:05:01.000000000 -0500
@@ -10,6 +10,7 @@ struct linear_conf
 {
 	struct rcu_head		rcu;
 	sector_t		array_sectors;
+	int			raid_disks; /* a copy of mddev->raid_disks */
 	struct dev_info		disks[0];
 };
 #endif
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/md/md.c linux-libre-4.4.107-gnu/drivers/md/md.c
--- linux-libre-4.4-gnu/drivers/md/md.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/md/md.c	2017-12-20 04:05:01.000000000 -0500
@@ -293,6 +293,8 @@ static blk_qc_t md_make_request(struct r
 	 * go away inside make_request
 	 */
 	sectors = bio_sectors(bio);
+	/* bio could be mergeable after passing to underlayer */
+	bio->bi_rw &= ~REQ_NOMERGE;
 	mddev->pers->make_request(mddev, bio);
 
 	cpu = part_stat_lock();
@@ -1864,7 +1866,7 @@ super_1_rdev_size_change(struct md_rdev
 	}
 	sb = page_address(rdev->sb_page);
 	sb->data_size = cpu_to_le64(num_sectors);
-	sb->super_offset = rdev->sb_start;
+	sb->super_offset = cpu_to_le64(rdev->sb_start);
 	sb->sb_csum = calc_sb_1_csum(sb);
 	md_super_write(rdev->mddev, rdev, rdev->sb_start, rdev->sb_size,
 		       rdev->sb_page);
@@ -2017,28 +2019,32 @@ int md_integrity_register(struct mddev *
 }
 EXPORT_SYMBOL(md_integrity_register);
 
-/* Disable data integrity if non-capable/non-matching disk is being added */
-void md_integrity_add_rdev(struct md_rdev *rdev, struct mddev *mddev)
+/*
+ * Attempt to add an rdev, but only if it is consistent with the current
+ * integrity profile
+ */
+int md_integrity_add_rdev(struct md_rdev *rdev, struct mddev *mddev)
 {
 	struct blk_integrity *bi_rdev;
 	struct blk_integrity *bi_mddev;
+	char name[BDEVNAME_SIZE];
 
 	if (!mddev->gendisk)
-		return;
+		return 0;
 
 	bi_rdev = bdev_get_integrity(rdev->bdev);
 	bi_mddev = blk_get_integrity(mddev->gendisk);
 
 	if (!bi_mddev) /* nothing to do */
-		return;
-	if (rdev->raid_disk < 0) /* skip spares */
-		return;
-	if (bi_rdev && blk_integrity_compare(mddev->gendisk,
-					     rdev->bdev->bd_disk) >= 0)
-		return;
-	WARN_ON_ONCE(!mddev->suspended);
-	printk(KERN_NOTICE "disabling data integrity on %s\n", mdname(mddev));
-	blk_integrity_unregister(mddev->gendisk);
+		return 0;
+
+	if (blk_integrity_compare(mddev->gendisk, rdev->bdev->bd_disk) != 0) {
+		printk(KERN_NOTICE "%s: incompatible integrity profile for %s\n",
+				mdname(mddev), bdevname(rdev->bdev, name));
+		return -ENXIO;
+	}
+
+	return 0;
 }
 EXPORT_SYMBOL(md_integrity_add_rdev);
 
@@ -2267,7 +2273,7 @@ static bool does_sb_need_changing(struct
 	/* Check if any mddev parameters have changed */
 	if ((mddev->dev_sectors != le64_to_cpu(sb->size)) ||
 	    (mddev->reshape_position != le64_to_cpu(sb->reshape_position)) ||
-	    (mddev->layout != le64_to_cpu(sb->layout)) ||
+	    (mddev->layout != le32_to_cpu(sb->layout)) ||
 	    (mddev->raid_disks != le32_to_cpu(sb->raid_disks)) ||
 	    (mddev->chunk_sectors != le32_to_cpu(sb->chunksize)))
 		return true;
@@ -6765,7 +6771,7 @@ static int md_ioctl(struct block_device
 		/* need to ensure recovery thread has run */
 		wait_event_interruptible_timeout(mddev->sb_wait,
 						 !test_bit(MD_RECOVERY_NEEDED,
-							   &mddev->flags),
+							   &mddev->recovery),
 						 msecs_to_jiffies(5000));
 	if (cmd == STOP_ARRAY || cmd == STOP_ARRAY_RO) {
 		/* Need to flush page cache, and ensure no-one else opens
@@ -7566,16 +7572,12 @@ EXPORT_SYMBOL(unregister_md_cluster_oper
 
 int md_setup_cluster(struct mddev *mddev, int nodes)
 {
-	int err;
-
-	err = request_module("md-cluster");
-	if (err) {
-		pr_err("md-cluster module not found.\n");
-		return -ENOENT;
-	}
-
+	if (!md_cluster_ops)
+		request_module("md-cluster");
 	spin_lock(&pers_lock);
+	/* ensure module won't be unloaded */
 	if (!md_cluster_ops || !try_module_get(md_cluster_mod)) {
+		pr_err("can't find md-cluster module or get it's reference.\n");
 		spin_unlock(&pers_lock);
 		return -ENOENT;
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/md/md-cluster.c linux-libre-4.4.107-gnu/drivers/md/md-cluster.c
--- linux-libre-4.4-gnu/drivers/md/md-cluster.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/md/md-cluster.c	2017-12-20 04:05:01.000000000 -0500
@@ -821,6 +821,7 @@ static int leave(struct mddev *mddev)
 	lockres_free(cinfo->no_new_dev_lockres);
 	lockres_free(cinfo->bitmap_lockres);
 	dlm_release_lockspace(cinfo->lockspace, 2);
+	kfree(cinfo);
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/md/md.h linux-libre-4.4.107-gnu/drivers/md/md.h
--- linux-libre-4.4-gnu/drivers/md/md.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/md/md.h	2017-12-20 04:05:01.000000000 -0500
@@ -657,7 +657,7 @@ extern void md_wait_for_blocked_rdev(str
 extern void md_set_array_sectors(struct mddev *mddev, sector_t array_sectors);
 extern int md_check_no_bitmap(struct mddev *mddev);
 extern int md_integrity_register(struct mddev *mddev);
-extern void md_integrity_add_rdev(struct md_rdev *rdev, struct mddev *mddev);
+extern int md_integrity_add_rdev(struct md_rdev *rdev, struct mddev *mddev);
 extern int strict_strtoul_scaled(const char *cp, unsigned long *res, int scale);
 
 extern void mddev_init(struct mddev *mddev);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/md/multipath.c linux-libre-4.4.107-gnu/drivers/md/multipath.c
--- linux-libre-4.4-gnu/drivers/md/multipath.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/md/multipath.c	2017-12-20 04:05:01.000000000 -0500
@@ -129,7 +129,9 @@ static void multipath_make_request(struc
 	}
 	multipath = conf->multipaths + mp_bh->path;
 
-	mp_bh->bio = *bio;
+	bio_init(&mp_bh->bio);
+	__bio_clone_fast(&mp_bh->bio, bio);
+
 	mp_bh->bio.bi_iter.bi_sector += multipath->rdev->data_offset;
 	mp_bh->bio.bi_bdev = multipath->rdev->bdev;
 	mp_bh->bio.bi_rw |= REQ_FAILFAST_TRANSPORT;
@@ -257,6 +259,9 @@ static int multipath_add_disk(struct mdd
 			disk_stack_limits(mddev->gendisk, rdev->bdev,
 					  rdev->data_offset << 9);
 
+			err = md_integrity_add_rdev(rdev, mddev);
+			if (err)
+				break;
 			spin_lock_irq(&conf->device_lock);
 			mddev->degraded--;
 			rdev->raid_disk = path;
@@ -264,9 +269,6 @@ static int multipath_add_disk(struct mdd
 			spin_unlock_irq(&conf->device_lock);
 			rcu_assign_pointer(p->rdev, rdev);
 			err = 0;
-			mddev_suspend(mddev);
-			md_integrity_add_rdev(rdev, mddev);
-			mddev_resume(mddev);
 			break;
 		}
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/md/persistent-data/dm-btree.c linux-libre-4.4.107-gnu/drivers/md/persistent-data/dm-btree.c
--- linux-libre-4.4-gnu/drivers/md/persistent-data/dm-btree.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/md/persistent-data/dm-btree.c	2017-12-20 04:05:01.000000000 -0500
@@ -887,8 +887,12 @@ static int find_key(struct ro_spine *s,
 		else
 			*result_key = le64_to_cpu(ro_node(s)->keys[0]);
 
-		if (next_block || flags & INTERNAL_NODE)
-			block = value64(ro_node(s), i);
+		if (next_block || flags & INTERNAL_NODE) {
+			if (find_highest)
+				block = value64(ro_node(s), i);
+			else
+				block = value64(ro_node(s), 0);
+		}
 
 	} while (flags & INTERNAL_NODE);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/md/persistent-data/dm-space-map-disk.c linux-libre-4.4.107-gnu/drivers/md/persistent-data/dm-space-map-disk.c
--- linux-libre-4.4-gnu/drivers/md/persistent-data/dm-space-map-disk.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/md/persistent-data/dm-space-map-disk.c	2017-12-20 04:05:01.000000000 -0500
@@ -142,10 +142,23 @@ static int sm_disk_inc_block(struct dm_s
 
 static int sm_disk_dec_block(struct dm_space_map *sm, dm_block_t b)
 {
+	int r;
+	uint32_t old_count;
 	enum allocation_event ev;
 	struct sm_disk *smd = container_of(sm, struct sm_disk, sm);
 
-	return sm_ll_dec(&smd->ll, b, &ev);
+	r = sm_ll_dec(&smd->ll, b, &ev);
+	if (!r && (ev == SM_FREE)) {
+		/*
+		 * It's only free if it's also free in the last
+		 * transaction.
+		 */
+		r = sm_ll_lookup(&smd->old_ll, b, &old_count);
+		if (!r && !old_count)
+			smd->nr_allocated_this_transaction--;
+	}
+
+	return r;
 }
 
 static int sm_disk_new_block(struct dm_space_map *sm, dm_block_t *b)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/md/persistent-data/dm-space-map-metadata.c linux-libre-4.4.107-gnu/drivers/md/persistent-data/dm-space-map-metadata.c
--- linux-libre-4.4-gnu/drivers/md/persistent-data/dm-space-map-metadata.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/md/persistent-data/dm-space-map-metadata.c	2017-12-20 04:05:01.000000000 -0500
@@ -152,12 +152,9 @@ static int brb_peek(struct bop_ring_buff
 
 static int brb_pop(struct bop_ring_buffer *brb)
 {
-	struct block_op *bop;
-
 	if (brb_empty(brb))
 		return -ENODATA;
 
-	bop = brb->bops + brb->begin;
 	brb->begin = brb_next(brb, brb->begin);
 
 	return 0;
@@ -778,17 +775,15 @@ int dm_sm_metadata_create(struct dm_spac
 	memcpy(&smm->sm, &bootstrap_ops, sizeof(smm->sm));
 
 	r = sm_ll_new_metadata(&smm->ll, tm);
+	if (!r) {
+		if (nr_blocks > DM_SM_METADATA_MAX_BLOCKS)
+			nr_blocks = DM_SM_METADATA_MAX_BLOCKS;
+		r = sm_ll_extend(&smm->ll, nr_blocks);
+	}
+	memcpy(&smm->sm, &ops, sizeof(smm->sm));
 	if (r)
 		return r;
 
-	if (nr_blocks > DM_SM_METADATA_MAX_BLOCKS)
-		nr_blocks = DM_SM_METADATA_MAX_BLOCKS;
-	r = sm_ll_extend(&smm->ll, nr_blocks);
-	if (r)
-		return r;
-
-	memcpy(&smm->sm, &ops, sizeof(smm->sm));
-
 	/*
 	 * Now we need to update the newly created data structures with the
 	 * allocated blocks that they were built from.
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/md/raid10.c linux-libre-4.4.107-gnu/drivers/md/raid10.c
--- linux-libre-4.4-gnu/drivers/md/raid10.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/md/raid10.c	2017-12-20 04:05:01.000000000 -0500
@@ -946,7 +946,8 @@ static void wait_barrier(struct r10conf
 				    !conf->barrier ||
 				    (conf->nr_pending &&
 				     current->bio_list &&
-				     !bio_list_empty(current->bio_list)),
+				     (!bio_list_empty(&current->bio_list[0]) ||
+				      !bio_list_empty(&current->bio_list[1]))),
 				    conf->resync_lock);
 		conf->nr_waiting--;
 	}
@@ -1072,6 +1073,8 @@ static void __make_request(struct mddev
 	int max_sectors;
 	int sectors;
 
+	md_write_start(mddev, bio);
+
 	/*
 	 * Register the new request and wait if the reconstruction
 	 * thread has put up a bar for new requests.
@@ -1411,11 +1414,24 @@ retry_write:
 			mbio->bi_private = r10_bio;
 
 			atomic_inc(&r10_bio->remaining);
+
+			cb = blk_check_plugged(raid10_unplug, mddev,
+					       sizeof(*plug));
+			if (cb)
+				plug = container_of(cb, struct raid10_plug_cb,
+						    cb);
+			else
+				plug = NULL;
 			spin_lock_irqsave(&conf->device_lock, flags);
-			bio_list_add(&conf->pending_bio_list, mbio);
-			conf->pending_count++;
+			if (plug) {
+				bio_list_add(&plug->pending, mbio);
+				plug->pending_cnt++;
+			} else {
+				bio_list_add(&conf->pending_bio_list, mbio);
+				conf->pending_count++;
+			}
 			spin_unlock_irqrestore(&conf->device_lock, flags);
-			if (!mddev_check_plugged(mddev))
+			if (!plug)
 				md_wakeup_thread(mddev->thread);
 		}
 	}
@@ -1455,8 +1471,6 @@ static void make_request(struct mddev *m
 		return;
 	}
 
-	md_write_start(mddev, bio);
-
 	do {
 
 		/*
@@ -1477,7 +1491,25 @@ static void make_request(struct mddev *m
 			split = bio;
 		}
 
+		/*
+		 * If a bio is splitted, the first part of bio will pass
+		 * barrier but the bio is queued in current->bio_list (see
+		 * generic_make_request). If there is a raise_barrier() called
+		 * here, the second part of bio can't pass barrier. But since
+		 * the first part bio isn't dispatched to underlaying disks
+		 * yet, the barrier is never released, hence raise_barrier will
+		 * alays wait. We have a deadlock.
+		 * Note, this only happens in read path. For write path, the
+		 * first part of bio is dispatched in a schedule() call
+		 * (because of blk plug) or offloaded to raid10d.
+		 * Quitting from the function immediately can change the bio
+		 * order queued in bio_list and avoid the deadlock.
+		 */
 		__make_request(mddev, split);
+		if (split != bio && bio_data_dir(bio) == READ) {
+			generic_make_request(bio);
+			break;
+		}
 	} while (split != bio);
 
 	/* In case raid10d snuck in to freeze_array */
@@ -1698,6 +1730,9 @@ static int raid10_add_disk(struct mddev
 	if (rdev->saved_raid_disk < 0 && !_enough(conf, 1, -1))
 		return -EINVAL;
 
+	if (md_integrity_add_rdev(rdev, mddev))
+		return -ENXIO;
+
 	if (rdev->raid_disk >= 0)
 		first = last = rdev->raid_disk;
 
@@ -1739,9 +1774,6 @@ static int raid10_add_disk(struct mddev
 		rcu_assign_pointer(p->rdev, rdev);
 		break;
 	}
-	mddev_suspend(mddev);
-	md_integrity_add_rdev(rdev, mddev);
-	mddev_resume(mddev);
 	if (mddev->queue && blk_queue_discard(bdev_get_queue(rdev->bdev)))
 		queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, mddev->queue);
 
@@ -2664,6 +2696,7 @@ static void handle_write_completed(struc
 		if (fail) {
 			spin_lock_irq(&conf->device_lock);
 			list_add(&r10_bio->retry_list, &conf->bio_end_io_list);
+			conf->nr_queued++;
 			spin_unlock_irq(&conf->device_lock);
 			md_wakeup_thread(conf->mddev->thread);
 		} else {
@@ -2691,8 +2724,10 @@ static void raid10d(struct md_thread *th
 		LIST_HEAD(tmp);
 		spin_lock_irqsave(&conf->device_lock, flags);
 		if (!test_bit(MD_CHANGE_PENDING, &mddev->flags)) {
-			list_add(&tmp, &conf->bio_end_io_list);
-			list_del_init(&conf->bio_end_io_list);
+			while (!list_empty(&conf->bio_end_io_list)) {
+				list_move(conf->bio_end_io_list.prev, &tmp);
+				conf->nr_queued--;
+			}
 		}
 		spin_unlock_irqrestore(&conf->device_lock, flags);
 		while (!list_empty(&tmp)) {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/md/raid1.c linux-libre-4.4.107-gnu/drivers/md/raid1.c
--- linux-libre-4.4-gnu/drivers/md/raid1.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/md/raid1.c	2017-12-20 04:05:01.000000000 -0500
@@ -570,7 +570,7 @@ static int read_balance(struct r1conf *c
 			if (best_dist_disk < 0) {
 				if (is_badblock(rdev, this_sector, sectors,
 						&first_bad, &bad_sectors)) {
-					if (first_bad < this_sector)
+					if (first_bad <= this_sector)
 						/* Cannot use this */
 						continue;
 					best_good_sectors = first_bad - this_sector;
@@ -877,7 +877,8 @@ static sector_t wait_barrier(struct r1co
 				     ((conf->start_next_window <
 				       conf->next_resync + RESYNC_SECTORS) &&
 				      current->bio_list &&
-				      !bio_list_empty(current->bio_list))),
+				     (!bio_list_empty(&current->bio_list[0]) ||
+				      !bio_list_empty(&current->bio_list[1])))),
 				    conf->resync_lock);
 		conf->nr_waiting--;
 	}
@@ -1087,7 +1088,7 @@ static void make_request(struct mddev *m
 		 */
 		DEFINE_WAIT(w);
 		for (;;) {
-			flush_signals(current);
+			sigset_t full, old;
 			prepare_to_wait(&conf->wait_barrier,
 					&w, TASK_INTERRUPTIBLE);
 			if (bio_end_sector(bio) <= mddev->suspend_lo ||
@@ -1096,7 +1097,10 @@ static void make_request(struct mddev *m
 			     !md_cluster_ops->area_resyncing(mddev, WRITE,
 				     bio->bi_iter.bi_sector, bio_end_sector(bio))))
 				break;
+			sigfillset(&full);
+			sigprocmask(SIG_BLOCK, &full, &old);
 			schedule();
+			sigprocmask(SIG_SETMASK, &old, NULL);
 		}
 		finish_wait(&conf->wait_barrier, &w);
 	}
@@ -1589,6 +1593,9 @@ static int raid1_add_disk(struct mddev *
 	if (mddev->recovery_disabled == conf->recovery_disabled)
 		return -EBUSY;
 
+	if (md_integrity_add_rdev(rdev, mddev))
+		return -ENXIO;
+
 	if (rdev->raid_disk >= 0)
 		first = last = rdev->raid_disk;
 
@@ -1632,9 +1639,6 @@ static int raid1_add_disk(struct mddev *
 			break;
 		}
 	}
-	mddev_suspend(mddev);
-	md_integrity_add_rdev(rdev, mddev);
-	mddev_resume(mddev);
 	if (mddev->queue && blk_queue_discard(bdev_get_queue(rdev->bdev)))
 		queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, mddev->queue);
 	print_conf(conf);
@@ -2274,6 +2278,7 @@ static void handle_write_finished(struct
 	if (fail) {
 		spin_lock_irq(&conf->device_lock);
 		list_add(&r1_bio->retry_list, &conf->bio_end_io_list);
+		conf->nr_queued++;
 		spin_unlock_irq(&conf->device_lock);
 		md_wakeup_thread(conf->mddev->thread);
 	} else {
@@ -2391,8 +2396,10 @@ static void raid1d(struct md_thread *thr
 		LIST_HEAD(tmp);
 		spin_lock_irqsave(&conf->device_lock, flags);
 		if (!test_bit(MD_CHANGE_PENDING, &mddev->flags)) {
-			list_add(&tmp, &conf->bio_end_io_list);
-			list_del_init(&conf->bio_end_io_list);
+			while (!list_empty(&conf->bio_end_io_list)) {
+				list_move(conf->bio_end_io_list.prev, &tmp);
+				conf->nr_queued--;
+			}
 		}
 		spin_unlock_irqrestore(&conf->device_lock, flags);
 		while (!list_empty(&tmp)) {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/md/raid5.c linux-libre-4.4.107-gnu/drivers/md/raid5.c
--- linux-libre-4.4-gnu/drivers/md/raid5.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/md/raid5.c	2017-12-20 04:05:01.000000000 -0500
@@ -340,8 +340,7 @@ static void release_inactive_stripe_list
 					 int hash)
 {
 	int size;
-	unsigned long do_wakeup = 0;
-	int i = 0;
+	bool do_wakeup = false;
 	unsigned long flags;
 
 	if (hash == NR_STRIPE_HASH_LOCKS) {
@@ -362,19 +361,15 @@ static void release_inactive_stripe_list
 			    !list_empty(list))
 				atomic_dec(&conf->empty_inactive_list_nr);
 			list_splice_tail_init(list, conf->inactive_list + hash);
-			do_wakeup |= 1 << hash;
+			do_wakeup = true;
 			spin_unlock_irqrestore(conf->hash_locks + hash, flags);
 		}
 		size--;
 		hash--;
 	}
 
-	for (i = 0; i < NR_STRIPE_HASH_LOCKS; i++) {
-		if (do_wakeup & (1 << i))
-			wake_up(&conf->wait_for_stripe[i]);
-	}
-
 	if (do_wakeup) {
+		wake_up(&conf->wait_for_stripe);
 		if (atomic_read(&conf->active_stripes) == 0)
 			wake_up(&conf->wait_for_quiescent);
 		if (conf->retry_read_aligned)
@@ -687,15 +682,14 @@ raid5_get_active_stripe(struct r5conf *c
 			if (!sh) {
 				set_bit(R5_INACTIVE_BLOCKED,
 					&conf->cache_state);
-				wait_event_exclusive_cmd(
-					conf->wait_for_stripe[hash],
+				wait_event_lock_irq(
+					conf->wait_for_stripe,
 					!list_empty(conf->inactive_list + hash) &&
 					(atomic_read(&conf->active_stripes)
 					 < (conf->max_nr_stripes * 3 / 4)
 					 || !test_bit(R5_INACTIVE_BLOCKED,
 						      &conf->cache_state)),
-					spin_unlock_irq(conf->hash_locks + hash),
-					spin_lock_irq(conf->hash_locks + hash));
+					*(conf->hash_locks + hash));
 				clear_bit(R5_INACTIVE_BLOCKED,
 					  &conf->cache_state);
 			} else {
@@ -720,9 +714,6 @@ raid5_get_active_stripe(struct r5conf *c
 		}
 	} while (sh == NULL);
 
-	if (!list_empty(conf->inactive_list + hash))
-		wake_up(&conf->wait_for_stripe[hash]);
-
 	spin_unlock_irq(conf->hash_locks + hash);
 	return sh;
 }
@@ -827,6 +818,14 @@ static void stripe_add_to_batch_list(str
 			spin_unlock(&head->batch_head->batch_lock);
 			goto unlock_out;
 		}
+		/*
+		 * We must assign batch_head of this stripe within the
+		 * batch_lock, otherwise clear_batch_ready of batch head
+		 * stripe could clear BATCH_READY bit of this stripe and
+		 * this stripe->batch_head doesn't get assigned, which
+		 * could confuse clear_batch_ready for this stripe
+		 */
+		sh->batch_head = head->batch_head;
 
 		/*
 		 * at this point, head's BATCH_READY could be cleared, but we
@@ -834,8 +833,6 @@ static void stripe_add_to_batch_list(str
 		 */
 		list_add(&sh->batch_list, &head->batch_list);
 		spin_unlock(&head->batch_head->batch_lock);
-
-		sh->batch_head = head->batch_head;
 	} else {
 		head->batch_head = head;
 		sh->batch_head = head->batch_head;
@@ -1684,8 +1681,11 @@ static void ops_complete_reconstruct(voi
 		struct r5dev *dev = &sh->dev[i];
 
 		if (dev->written || i == pd_idx || i == qd_idx) {
-			if (!discard && !test_bit(R5_SkipCopy, &dev->flags))
+			if (!discard && !test_bit(R5_SkipCopy, &dev->flags)) {
 				set_bit(R5_UPTODATE, &dev->flags);
+				if (test_bit(STRIPE_EXPAND_READY, &sh->state))
+					set_bit(R5_Expanded, &dev->flags);
+			}
 			if (fua)
 				set_bit(R5_WantFUA, &dev->flags);
 			if (sync)
@@ -2091,6 +2091,14 @@ static int resize_chunks(struct r5conf *
 	unsigned long cpu;
 	int err = 0;
 
+	/*
+	 * Never shrink. And mddev_suspend() could deadlock if this is called
+	 * from raid5d. In that case, scribble_disks and scribble_sectors
+	 * should equal to new_disks and new_sectors
+	 */
+	if (conf->scribble_disks >= new_disks &&
+	    conf->scribble_sectors >= new_sectors)
+		return 0;
 	mddev_suspend(conf->mddev);
 	get_online_cpus();
 	for_each_present_cpu(cpu) {
@@ -2112,6 +2120,10 @@ static int resize_chunks(struct r5conf *
 	}
 	put_online_cpus();
 	mddev_resume(conf->mddev);
+	if (!err) {
+		conf->scribble_disks = new_disks;
+		conf->scribble_sectors = new_sectors;
+	}
 	return err;
 }
 
@@ -2192,7 +2204,7 @@ static int resize_stripes(struct r5conf
 	cnt = 0;
 	list_for_each_entry(nsh, &newstripes, lru) {
 		lock_device_hash_lock(conf, hash);
-		wait_event_exclusive_cmd(conf->wait_for_stripe[hash],
+		wait_event_cmd(conf->wait_for_stripe,
 				    !list_empty(conf->inactive_list + hash),
 				    unlock_device_hash_lock(conf, hash),
 				    lock_device_hash_lock(conf, hash));
@@ -2229,6 +2241,10 @@ static int resize_stripes(struct r5conf
 		err = -ENOMEM;
 
 	mutex_unlock(&conf->cache_size_mutex);
+
+	conf->slab_cache = sc;
+	conf->active_name = 1-conf->active_name;
+
 	/* Step 4, return new stripes to service */
 	while(!list_empty(&newstripes)) {
 		nsh = list_entry(newstripes.next, struct stripe_head, lru);
@@ -2246,8 +2262,6 @@ static int resize_stripes(struct r5conf
 	}
 	/* critical section pass, GFP_NOIO no longer needed */
 
-	conf->slab_cache = sc;
-	conf->active_name = 1-conf->active_name;
 	if (!err)
 		conf->pool_size = newsize;
 	return err;
@@ -4238,7 +4252,6 @@ static void break_stripe_batch_list(stru
 		WARN_ON_ONCE(sh->state & ((1 << STRIPE_ACTIVE) |
 					  (1 << STRIPE_SYNCING) |
 					  (1 << STRIPE_REPLACED) |
-					  (1 << STRIPE_PREREAD_ACTIVE) |
 					  (1 << STRIPE_DELAYED) |
 					  (1 << STRIPE_BIT_DELAY) |
 					  (1 << STRIPE_FULL_WRITE) |
@@ -4253,7 +4266,9 @@ static void break_stripe_batch_list(stru
 					      (1 << STRIPE_REPLACED)));
 
 		set_mask_bits(&sh->state, ~(STRIPE_EXPAND_SYNC_FLAGS |
-					    (1 << STRIPE_DEGRADED)),
+					    (1 << STRIPE_PREREAD_ACTIVE) |
+					    (1 << STRIPE_DEGRADED) |
+					    (1 << STRIPE_ON_UNPLUG_LIST)),
 			      head_sh->state & (1 << STRIPE_INSYNC));
 
 		sh->check_state = head_sh->check_state;
@@ -5274,12 +5289,15 @@ static void make_request(struct mddev *m
 				 * userspace, we want an interruptible
 				 * wait.
 				 */
-				flush_signals(current);
 				prepare_to_wait(&conf->wait_for_overlap,
 						&w, TASK_INTERRUPTIBLE);
 				if (logical_sector >= mddev->suspend_lo &&
 				    logical_sector < mddev->suspend_hi) {
+					sigset_t full, old;
+					sigfillset(&full);
+					sigprocmask(SIG_BLOCK, &full, &old);
 					schedule();
+					sigprocmask(SIG_SETMASK, &old, NULL);
 					do_prepare = true;
 				}
 				goto retry;
@@ -5813,6 +5831,10 @@ static void raid5_do_work(struct work_st
 	pr_debug("%d stripes handled\n", handled);
 
 	spin_unlock_irq(&conf->device_lock);
+
+	r5l_flush_stripe_to_raid(conf->log);
+
+	async_tx_issue_pending_all();
 	blk_finish_plug(&plug);
 
 	pr_debug("--- raid5worker inactive\n");
@@ -6414,6 +6436,12 @@ static int raid5_alloc_percpu(struct r5c
 	}
 	put_online_cpus();
 
+	if (!err) {
+		conf->scribble_disks = max(conf->raid_disks,
+			conf->previous_raid_disks);
+		conf->scribble_sectors = max(conf->chunk_sectors,
+			conf->prev_chunk_sectors);
+	}
 	return err;
 }
 
@@ -6504,9 +6532,7 @@ static struct r5conf *setup_conf(struct
 	seqcount_init(&conf->gen_lock);
 	mutex_init(&conf->cache_size_mutex);
 	init_waitqueue_head(&conf->wait_for_quiescent);
-	for (i = 0; i < NR_STRIPE_HASH_LOCKS; i++) {
-		init_waitqueue_head(&conf->wait_for_stripe[i]);
-	}
+	init_waitqueue_head(&conf->wait_for_stripe);
 	init_waitqueue_head(&conf->wait_for_overlap);
 	INIT_LIST_HEAD(&conf->handle_list);
 	INIT_LIST_HEAD(&conf->hold_list);
@@ -6973,6 +6999,15 @@ static int run(struct mddev *mddev)
 			stripe = (stripe | (stripe-1)) + 1;
 		mddev->queue->limits.discard_alignment = stripe;
 		mddev->queue->limits.discard_granularity = stripe;
+
+		/*
+		 * We use 16-bit counter of active stripes in bi_phys_segments
+		 * (minus one for over-loaded initialization)
+		 */
+		blk_queue_max_hw_sectors(mddev->queue, 0xfffe * STRIPE_SECTORS);
+		blk_queue_max_discard_sectors(mddev->queue,
+					      0xfffe * STRIPE_SECTORS);
+
 		/*
 		 * unaligned part of discard request will be ignored, so can't
 		 * guarantee discard_zeroes_data
@@ -7015,8 +7050,8 @@ static int run(struct mddev *mddev)
 		}
 
 		if (discard_supported &&
-		   mddev->queue->limits.max_discard_sectors >= stripe &&
-		   mddev->queue->limits.discard_granularity >= stripe)
+		    mddev->queue->limits.max_discard_sectors >= (stripe >> 9) &&
+		    mddev->queue->limits.discard_granularity >= stripe)
 			queue_flag_set_unlocked(QUEUE_FLAG_DISCARD,
 						mddev->queue);
 		else
@@ -7510,12 +7545,10 @@ static void end_reshape(struct r5conf *c
 {
 
 	if (!test_bit(MD_RECOVERY_INTR, &conf->mddev->recovery)) {
-		struct md_rdev *rdev;
 
 		spin_lock_irq(&conf->device_lock);
 		conf->previous_raid_disks = conf->raid_disks;
-		rdev_for_each(rdev, conf->mddev)
-			rdev->data_offset = rdev->new_data_offset;
+		md_finish_reshape(conf->mddev);
 		smp_wmb();
 		conf->reshape_progress = MaxSector;
 		conf->mddev->reshape_position = MaxSector;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/md/raid5.h linux-libre-4.4.107-gnu/drivers/md/raid5.h
--- linux-libre-4.4-gnu/drivers/md/raid5.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/md/raid5.h	2017-12-20 04:05:01.000000000 -0500
@@ -510,6 +510,8 @@ struct r5conf {
 					      * conversions
 					      */
 	} __percpu *percpu;
+	int scribble_disks;
+	int scribble_sectors;
 #ifdef CONFIG_HOTPLUG_CPU
 	struct notifier_block	cpu_notify;
 #endif
@@ -522,7 +524,7 @@ struct r5conf {
 	atomic_t		empty_inactive_list_nr;
 	struct llist_head	released_stripes;
 	wait_queue_head_t	wait_for_quiescent;
-	wait_queue_head_t	wait_for_stripe[NR_STRIPE_HASH_LOCKS];
+	wait_queue_head_t	wait_for_stripe;
 	wait_queue_head_t	wait_for_overlap;
 	unsigned long		cache_state;
 #define R5_INACTIVE_BLOCKED	1	/* release of inactive stripes blocked,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/dvb-core/dvb_frontend.c linux-libre-4.4.107-gnu/drivers/media/dvb-core/dvb_frontend.c
--- linux-libre-4.4-gnu/drivers/media/dvb-core/dvb_frontend.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/dvb-core/dvb_frontend.c	2017-12-20 04:05:01.000000000 -0500
@@ -2313,9 +2313,9 @@ static int dvb_frontend_ioctl_legacy(str
 		dev_dbg(fe->dvb->device, "%s: current delivery system on cache: %d, V3 type: %d\n",
 				 __func__, c->delivery_system, fe->ops.info.type);
 
-		/* Force the CAN_INVERSION_AUTO bit on. If the frontend doesn't
-		 * do it, it is done for it. */
-		info->caps |= FE_CAN_INVERSION_AUTO;
+		/* Set CAN_INVERSION_AUTO bit on in other than oneshot mode */
+		if (!(fepriv->tune_mode_flags & FE_TUNE_MODE_ONESHOT))
+			info->caps |= FE_CAN_INVERSION_AUTO;
 		err = 0;
 		break;
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/dvb-core/dvb_ringbuffer.c linux-libre-4.4.107-gnu/drivers/media/dvb-core/dvb_ringbuffer.c
--- linux-libre-4.4-gnu/drivers/media/dvb-core/dvb_ringbuffer.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/dvb-core/dvb_ringbuffer.c	2017-12-20 04:05:01.000000000 -0500
@@ -55,7 +55,13 @@ void dvb_ringbuffer_init(struct dvb_ring
 
 int dvb_ringbuffer_empty(struct dvb_ringbuffer *rbuf)
 {
-	return (rbuf->pread==rbuf->pwrite);
+	/* smp_load_acquire() to load write pointer on reader side
+	 * this pairs with smp_store_release() in dvb_ringbuffer_write(),
+	 * dvb_ringbuffer_write_user(), or dvb_ringbuffer_reset()
+	 *
+	 * for memory barriers also see Documentation/circular-buffers.txt
+	 */
+	return (rbuf->pread == smp_load_acquire(&rbuf->pwrite));
 }
 
 
@@ -64,7 +70,12 @@ ssize_t dvb_ringbuffer_free(struct dvb_r
 {
 	ssize_t free;
 
-	free = rbuf->pread - rbuf->pwrite;
+	/* ACCESS_ONCE() to load read pointer on writer side
+	 * this pairs with smp_store_release() in dvb_ringbuffer_read(),
+	 * dvb_ringbuffer_read_user(), dvb_ringbuffer_flush(),
+	 * or dvb_ringbuffer_reset()
+	 */
+	free = ACCESS_ONCE(rbuf->pread) - rbuf->pwrite;
 	if (free <= 0)
 		free += rbuf->size;
 	return free-1;
@@ -76,7 +87,11 @@ ssize_t dvb_ringbuffer_avail(struct dvb_
 {
 	ssize_t avail;
 
-	avail = rbuf->pwrite - rbuf->pread;
+	/* smp_load_acquire() to load write pointer on reader side
+	 * this pairs with smp_store_release() in dvb_ringbuffer_write(),
+	 * dvb_ringbuffer_write_user(), or dvb_ringbuffer_reset()
+	 */
+	avail = smp_load_acquire(&rbuf->pwrite) - rbuf->pread;
 	if (avail < 0)
 		avail += rbuf->size;
 	return avail;
@@ -86,14 +101,25 @@ ssize_t dvb_ringbuffer_avail(struct dvb_
 
 void dvb_ringbuffer_flush(struct dvb_ringbuffer *rbuf)
 {
-	rbuf->pread = rbuf->pwrite;
+	/* dvb_ringbuffer_flush() counts as read operation
+	 * smp_load_acquire() to load write pointer
+	 * smp_store_release() to update read pointer, this ensures that the
+	 * correct pointer is visible for subsequent dvb_ringbuffer_free()
+	 * calls on other cpu cores
+	 */
+	smp_store_release(&rbuf->pread, smp_load_acquire(&rbuf->pwrite));
 	rbuf->error = 0;
 }
 EXPORT_SYMBOL(dvb_ringbuffer_flush);
 
 void dvb_ringbuffer_reset(struct dvb_ringbuffer *rbuf)
 {
-	rbuf->pread = rbuf->pwrite = 0;
+	/* dvb_ringbuffer_reset() counts as read and write operation
+	 * smp_store_release() to update read pointer
+	 */
+	smp_store_release(&rbuf->pread, 0);
+	/* smp_store_release() to update write pointer */
+	smp_store_release(&rbuf->pwrite, 0);
 	rbuf->error = 0;
 }
 
@@ -119,12 +145,17 @@ ssize_t dvb_ringbuffer_read_user(struct
 			return -EFAULT;
 		buf += split;
 		todo -= split;
-		rbuf->pread = 0;
+		/* smp_store_release() for read pointer update to ensure
+		 * that buf is not overwritten until read is complete,
+		 * this pairs with ACCESS_ONCE() in dvb_ringbuffer_free()
+		 */
+		smp_store_release(&rbuf->pread, 0);
 	}
 	if (copy_to_user(buf, rbuf->data+rbuf->pread, todo))
 		return -EFAULT;
 
-	rbuf->pread = (rbuf->pread + todo) % rbuf->size;
+	/* smp_store_release() to update read pointer, see above */
+	smp_store_release(&rbuf->pread, (rbuf->pread + todo) % rbuf->size);
 
 	return len;
 }
@@ -139,11 +170,16 @@ void dvb_ringbuffer_read(struct dvb_ring
 		memcpy(buf, rbuf->data+rbuf->pread, split);
 		buf += split;
 		todo -= split;
-		rbuf->pread = 0;
+		/* smp_store_release() for read pointer update to ensure
+		 * that buf is not overwritten until read is complete,
+		 * this pairs with ACCESS_ONCE() in dvb_ringbuffer_free()
+		 */
+		smp_store_release(&rbuf->pread, 0);
 	}
 	memcpy(buf, rbuf->data+rbuf->pread, todo);
 
-	rbuf->pread = (rbuf->pread + todo) % rbuf->size;
+	/* smp_store_release() to update read pointer, see above */
+	smp_store_release(&rbuf->pread, (rbuf->pread + todo) % rbuf->size);
 }
 
 
@@ -158,10 +194,16 @@ ssize_t dvb_ringbuffer_write(struct dvb_
 		memcpy(rbuf->data+rbuf->pwrite, buf, split);
 		buf += split;
 		todo -= split;
-		rbuf->pwrite = 0;
+		/* smp_store_release() for write pointer update to ensure that
+		 * written data is visible on other cpu cores before the pointer
+		 * update, this pairs with smp_load_acquire() in
+		 * dvb_ringbuffer_empty() or dvb_ringbuffer_avail()
+		 */
+		smp_store_release(&rbuf->pwrite, 0);
 	}
 	memcpy(rbuf->data+rbuf->pwrite, buf, todo);
-	rbuf->pwrite = (rbuf->pwrite + todo) % rbuf->size;
+	/* smp_store_release() for write pointer update, see above */
+	smp_store_release(&rbuf->pwrite, (rbuf->pwrite + todo) % rbuf->size);
 
 	return len;
 }
@@ -181,12 +223,18 @@ ssize_t dvb_ringbuffer_write_user(struct
 			return len - todo;
 		buf += split;
 		todo -= split;
-		rbuf->pwrite = 0;
+		/* smp_store_release() for write pointer update to ensure that
+		 * written data is visible on other cpu cores before the pointer
+		 * update, this pairs with smp_load_acquire() in
+		 * dvb_ringbuffer_empty() or dvb_ringbuffer_avail()
+		 */
+		smp_store_release(&rbuf->pwrite, 0);
 	}
 	status = copy_from_user(rbuf->data+rbuf->pwrite, buf, todo);
 	if (status)
 		return len - todo;
-	rbuf->pwrite = (rbuf->pwrite + todo) % rbuf->size;
+	/* smp_store_release() for write pointer update, see above */
+	smp_store_release(&rbuf->pwrite, (rbuf->pwrite + todo) % rbuf->size);
 
 	return len;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/dvb-frontends/cxd2841er.c linux-libre-4.4.107-gnu/drivers/media/dvb-frontends/cxd2841er.c
--- linux-libre-4.4-gnu/drivers/media/dvb-frontends/cxd2841er.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/dvb-frontends/cxd2841er.c	2017-12-20 04:05:01.000000000 -0500
@@ -2678,7 +2678,9 @@ static struct  dvb_frontend_ops cxd2841e
 			FE_CAN_MUTE_TS |
 			FE_CAN_2G_MODULATION,
 		.frequency_min = 42000000,
-		.frequency_max = 1002000000
+		.frequency_max = 1002000000,
+		.symbol_rate_min = 870000,
+		.symbol_rate_max = 11700000
 	},
 	.init = cxd2841er_init_tc,
 	.sleep = cxd2841er_sleep_tc,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/dvb-frontends/Kconfig linux-libre-4.4.107-gnu/drivers/media/dvb-frontends/Kconfig
--- linux-libre-4.4-gnu/drivers/media/dvb-frontends/Kconfig	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/dvb-frontends/Kconfig	2017-12-20 04:05:01.000000000 -0500
@@ -264,7 +264,7 @@ config DVB_MB86A16
 config DVB_TDA10071
 	tristate "NXP TDA10071"
 	depends on DVB_CORE && I2C
-	select REGMAP
+	select REGMAP_I2C
 	default m if !MEDIA_SUBDRV_AUTOSELECT
 	help
 	  Say Y when you want to support this frontend.
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/dvb-frontends/mb86a20s.c linux-libre-4.4.107-gnu/drivers/media/dvb-frontends/mb86a20s.c
--- linux-libre-4.4-gnu/drivers/media/dvb-frontends/mb86a20s.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/dvb-frontends/mb86a20s.c	2017-12-20 04:05:01.000000000 -0500
@@ -71,25 +71,27 @@ static struct regdata mb86a20s_init1[] =
 };
 
 static struct regdata mb86a20s_init2[] = {
-	{ 0x28, 0x22 }, { 0x29, 0x00 }, { 0x2a, 0x1f }, { 0x2b, 0xf0 },
+	{ 0x50, 0xd1 }, { 0x51, 0x22 },
+	{ 0x39, 0x01 },
+	{ 0x71, 0x00 },
 	{ 0x3b, 0x21 },
-	{ 0x3c, 0x38 },
+	{ 0x3c, 0x3a },
 	{ 0x01, 0x0d },
-	{ 0x04, 0x08 }, { 0x05, 0x03 },
+	{ 0x04, 0x08 }, { 0x05, 0x05 },
 	{ 0x04, 0x0e }, { 0x05, 0x00 },
-	{ 0x04, 0x0f }, { 0x05, 0x37 },
-	{ 0x04, 0x0b }, { 0x05, 0x78 },
+	{ 0x04, 0x0f }, { 0x05, 0x14 },
+	{ 0x04, 0x0b }, { 0x05, 0x8c },
 	{ 0x04, 0x00 }, { 0x05, 0x00 },
-	{ 0x04, 0x01 }, { 0x05, 0x1e },
-	{ 0x04, 0x02 }, { 0x05, 0x07 },
-	{ 0x04, 0x03 }, { 0x05, 0xd0 },
+	{ 0x04, 0x01 }, { 0x05, 0x07 },
+	{ 0x04, 0x02 }, { 0x05, 0x0f },
+	{ 0x04, 0x03 }, { 0x05, 0xa0 },
 	{ 0x04, 0x09 }, { 0x05, 0x00 },
 	{ 0x04, 0x0a }, { 0x05, 0xff },
-	{ 0x04, 0x27 }, { 0x05, 0x00 },
+	{ 0x04, 0x27 }, { 0x05, 0x64 },
 	{ 0x04, 0x28 }, { 0x05, 0x00 },
-	{ 0x04, 0x1e }, { 0x05, 0x00 },
-	{ 0x04, 0x29 }, { 0x05, 0x64 },
-	{ 0x04, 0x32 }, { 0x05, 0x02 },
+	{ 0x04, 0x1e }, { 0x05, 0xff },
+	{ 0x04, 0x29 }, { 0x05, 0x0a },
+	{ 0x04, 0x32 }, { 0x05, 0x0a },
 	{ 0x04, 0x14 }, { 0x05, 0x02 },
 	{ 0x04, 0x04 }, { 0x05, 0x00 },
 	{ 0x04, 0x05 }, { 0x05, 0x22 },
@@ -97,8 +99,6 @@ static struct regdata mb86a20s_init2[] =
 	{ 0x04, 0x07 }, { 0x05, 0xd8 },
 	{ 0x04, 0x12 }, { 0x05, 0x00 },
 	{ 0x04, 0x13 }, { 0x05, 0xff },
-	{ 0x04, 0x15 }, { 0x05, 0x4e },
-	{ 0x04, 0x16 }, { 0x05, 0x20 },
 
 	/*
 	 * On this demod, when the bit count reaches the count below,
@@ -152,42 +152,36 @@ static struct regdata mb86a20s_init2[] =
 	{ 0x50, 0x51 }, { 0x51, 0x04 },		/* MER symbol 4 */
 	{ 0x45, 0x04 },				/* CN symbol 4 */
 	{ 0x48, 0x04 },				/* CN manual mode */
-
+	{ 0x50, 0xd5 }, { 0x51, 0x01 },
 	{ 0x50, 0xd6 }, { 0x51, 0x1f },
 	{ 0x50, 0xd2 }, { 0x51, 0x03 },
-	{ 0x50, 0xd7 }, { 0x51, 0xbf },
-	{ 0x28, 0x74 }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0xff },
-	{ 0x28, 0x46 }, { 0x29, 0x00 }, { 0x2a, 0x1a }, { 0x2b, 0x0c },
-
-	{ 0x04, 0x40 }, { 0x05, 0x00 },
-	{ 0x28, 0x00 }, { 0x2b, 0x08 },
-	{ 0x28, 0x05 }, { 0x2b, 0x00 },
+	{ 0x50, 0xd7 }, { 0x51, 0x3f },
 	{ 0x1c, 0x01 },
-	{ 0x28, 0x06 }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x1f },
-	{ 0x28, 0x07 }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x18 },
-	{ 0x28, 0x08 }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x12 },
-	{ 0x28, 0x09 }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x30 },
-	{ 0x28, 0x0a }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x37 },
-	{ 0x28, 0x0b }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x02 },
-	{ 0x28, 0x0c }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x09 },
-	{ 0x28, 0x0d }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x06 },
-	{ 0x28, 0x0e }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x7b },
-	{ 0x28, 0x0f }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x76 },
-	{ 0x28, 0x10 }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x7d },
-	{ 0x28, 0x11 }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x08 },
-	{ 0x28, 0x12 }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x0b },
-	{ 0x28, 0x13 }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x00 },
-	{ 0x28, 0x14 }, { 0x29, 0x00 }, { 0x2a, 0x01 }, { 0x2b, 0xf2 },
-	{ 0x28, 0x15 }, { 0x29, 0x00 }, { 0x2a, 0x01 }, { 0x2b, 0xf3 },
-	{ 0x28, 0x16 }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x05 },
-	{ 0x28, 0x17 }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x16 },
-	{ 0x28, 0x18 }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x0f },
-	{ 0x28, 0x19 }, { 0x29, 0x00 }, { 0x2a, 0x07 }, { 0x2b, 0xef },
-	{ 0x28, 0x1a }, { 0x29, 0x00 }, { 0x2a, 0x07 }, { 0x2b, 0xd8 },
-	{ 0x28, 0x1b }, { 0x29, 0x00 }, { 0x2a, 0x07 }, { 0x2b, 0xf1 },
-	{ 0x28, 0x1c }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x3d },
-	{ 0x28, 0x1d }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x94 },
-	{ 0x28, 0x1e }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0xba },
+	{ 0x28, 0x06 }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x03 },
+	{ 0x28, 0x07 }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x0d },
+	{ 0x28, 0x08 }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x02 },
+	{ 0x28, 0x09 }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x01 },
+	{ 0x28, 0x0a }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x21 },
+	{ 0x28, 0x0b }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x29 },
+	{ 0x28, 0x0c }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x16 },
+	{ 0x28, 0x0d }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x31 },
+	{ 0x28, 0x0e }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x0e },
+	{ 0x28, 0x0f }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x4e },
+	{ 0x28, 0x10 }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x46 },
+	{ 0x28, 0x11 }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x0f },
+	{ 0x28, 0x12 }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x56 },
+	{ 0x28, 0x13 }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x35 },
+	{ 0x28, 0x14 }, { 0x29, 0x00 }, { 0x2a, 0x01 }, { 0x2b, 0xbe },
+	{ 0x28, 0x15 }, { 0x29, 0x00 }, { 0x2a, 0x01 }, { 0x2b, 0x84 },
+	{ 0x28, 0x16 }, { 0x29, 0x00 }, { 0x2a, 0x03 }, { 0x2b, 0xee },
+	{ 0x28, 0x17 }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x98 },
+	{ 0x28, 0x18 }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x9f },
+	{ 0x28, 0x19 }, { 0x29, 0x00 }, { 0x2a, 0x07 }, { 0x2b, 0xb2 },
+	{ 0x28, 0x1a }, { 0x29, 0x00 }, { 0x2a, 0x06 }, { 0x2b, 0xc2 },
+	{ 0x28, 0x1b }, { 0x29, 0x00 }, { 0x2a, 0x07 }, { 0x2b, 0x4a },
+	{ 0x28, 0x1c }, { 0x29, 0x00 }, { 0x2a, 0x01 }, { 0x2b, 0xbc },
+	{ 0x28, 0x1d }, { 0x29, 0x00 }, { 0x2a, 0x04 }, { 0x2b, 0xba },
+	{ 0x28, 0x1e }, { 0x29, 0x00 }, { 0x2a, 0x06 }, { 0x2b, 0x14 },
 	{ 0x50, 0x1e }, { 0x51, 0x5d },
 	{ 0x50, 0x22 }, { 0x51, 0x00 },
 	{ 0x50, 0x23 }, { 0x51, 0xc8 },
@@ -196,9 +190,7 @@ static struct regdata mb86a20s_init2[] =
 	{ 0x50, 0x26 }, { 0x51, 0x00 },
 	{ 0x50, 0x27 }, { 0x51, 0xc3 },
 	{ 0x50, 0x39 }, { 0x51, 0x02 },
-	{ 0xec, 0x0f },
-	{ 0xeb, 0x1f },
-	{ 0x28, 0x6a }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x00 },
+	{ 0x50, 0xd5 }, { 0x51, 0x01 },
 	{ 0xd0, 0x00 },
 };
 
@@ -317,7 +309,11 @@ static int mb86a20s_read_status(struct d
 	if (val >= 7)
 		*status |= FE_HAS_SYNC;
 
-	if (val >= 8)				/* Maybe 9? */
+	/*
+	 * Actually, on state S8, it starts receiving TS, but the TS
+	 * output is only on normal state after the transition to S9.
+	 */
+	if (val >= 9)
 		*status |= FE_HAS_LOCK;
 
 	dev_dbg(&state->i2c->dev, "%s: Status = 0x%02x (state = %d)\n",
@@ -2067,6 +2063,11 @@ static void mb86a20s_release(struct dvb_
 	kfree(state);
 }
 
+static int mb86a20s_get_frontend_algo(struct dvb_frontend *fe)
+{
+        return DVBFE_ALGO_HW;
+}
+
 static struct dvb_frontend_ops mb86a20s_ops;
 
 struct dvb_frontend *mb86a20s_attach(const struct mb86a20s_config *config,
@@ -2140,6 +2141,7 @@ static struct dvb_frontend_ops mb86a20s_
 	.read_status = mb86a20s_read_status_and_stats,
 	.read_signal_strength = mb86a20s_read_signal_strength_from_cache,
 	.tune = mb86a20s_tune,
+	.get_frontend_algo = mb86a20s_get_frontend_algo,
 };
 
 MODULE_DESCRIPTION("DVB Frontend module for Fujitsu mb86A20s hardware");
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/dvb-frontends/tda1004x.c linux-libre-4.4.107-gnu/drivers/media/dvb-frontends/tda1004x.c
--- linux-libre-4.4-gnu/drivers/media/dvb-frontends/tda1004x.c	2016-01-10 21:00:52.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/dvb-frontends/tda1004x.c	2017-12-20 11:18:33.000000000 -0500
@@ -895,9 +895,18 @@ static int tda1004x_get_fe(struct dvb_fr
 {
 	struct dtv_frontend_properties *fe_params = &fe->dtv_property_cache;
 	struct tda1004x_state* state = fe->demodulator_priv;
+	int status;
 
 	dprintk("%s\n", __func__);
 
+	status = tda1004x_read_byte(state, TDA1004X_STATUS_CD);
+	if (status == -1)
+		return -EIO;
+
+	/* Only update the properties cache if device is locked */
+	if (!(status & 8))
+		return 0;
+
 	// inversion status
 	fe_params->inversion = INVERSION_OFF;
 	if (tda1004x_read_byte(state, TDA1004X_CONFC1) & 0x20)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/i2c/adv7511.c linux-libre-4.4.107-gnu/drivers/media/i2c/adv7511.c
--- linux-libre-4.4-gnu/drivers/media/i2c/adv7511.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/i2c/adv7511.c	2017-12-20 04:05:01.000000000 -0500
@@ -1161,12 +1161,23 @@ static void adv7511_dbg_dump_edid(int lv
 	}
 }
 
+static void adv7511_notify_no_edid(struct v4l2_subdev *sd)
+{
+	struct adv7511_state *state = get_adv7511_state(sd);
+	struct adv7511_edid_detect ed;
+
+	/* We failed to read the EDID, so send an event for this. */
+	ed.present = false;
+	ed.segment = adv7511_rd(sd, 0xc4);
+	v4l2_subdev_notify(sd, ADV7511_EDID_DETECT, (void *)&ed);
+	v4l2_ctrl_s_ctrl(state->have_edid0_ctrl, 0x0);
+}
+
 static void adv7511_edid_handler(struct work_struct *work)
 {
 	struct delayed_work *dwork = to_delayed_work(work);
 	struct adv7511_state *state = container_of(dwork, struct adv7511_state, edid_handler);
 	struct v4l2_subdev *sd = &state->sd;
-	struct adv7511_edid_detect ed;
 
 	v4l2_dbg(1, debug, sd, "%s:\n", __func__);
 
@@ -1191,9 +1202,7 @@ static void adv7511_edid_handler(struct
 	}
 
 	/* We failed to read the EDID, so send an event for this. */
-	ed.present = false;
-	ed.segment = adv7511_rd(sd, 0xc4);
-	v4l2_subdev_notify(sd, ADV7511_EDID_DETECT, (void *)&ed);
+	adv7511_notify_no_edid(sd);
 	v4l2_dbg(1, debug, sd, "%s: no edid found\n", __func__);
 }
 
@@ -1264,7 +1273,6 @@ static void adv7511_check_monitor_presen
 	/* update read only ctrls */
 	v4l2_ctrl_s_ctrl(state->hotplug_ctrl, adv7511_have_hotplug(sd) ? 0x1 : 0x0);
 	v4l2_ctrl_s_ctrl(state->rx_sense_ctrl, adv7511_have_rx_sense(sd) ? 0x1 : 0x0);
-	v4l2_ctrl_s_ctrl(state->have_edid0_ctrl, state->edid.segments ? 0x1 : 0x0);
 
 	if ((status & MASK_ADV7511_HPD_DETECT) && ((status & MASK_ADV7511_MSEN_DETECT) || state->edid.segments)) {
 		v4l2_dbg(1, debug, sd, "%s: hotplug and (rx-sense or edid)\n", __func__);
@@ -1294,6 +1302,7 @@ static void adv7511_check_monitor_presen
 		}
 		adv7511_s_power(sd, false);
 		memset(&state->edid, 0, sizeof(struct adv7511_state_edid));
+		adv7511_notify_no_edid(sd);
 	}
 }
 
@@ -1370,6 +1379,7 @@ static bool adv7511_check_edid_status(st
 		}
 		/* one more segment read ok */
 		state->edid.segments = segment + 1;
+		v4l2_ctrl_s_ctrl(state->have_edid0_ctrl, 0x1);
 		if (((state->edid.data[0x7e] >> 1) + 1) > state->edid.segments) {
 			/* Request next EDID segment */
 			v4l2_dbg(1, debug, sd, "%s: request segment %d\n", __func__, state->edid.segments);
@@ -1389,7 +1399,6 @@ static bool adv7511_check_edid_status(st
 		ed.present = true;
 		ed.segment = 0;
 		state->edid_detect_counter++;
-		v4l2_ctrl_s_ctrl(state->have_edid0_ctrl, state->edid.segments ? 0x1 : 0x0);
 		v4l2_subdev_notify(sd, ADV7511_EDID_DETECT, (void *)&ed);
 		return ed.present;
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/i2c/adv7604.c linux-libre-4.4.107-gnu/drivers/media/i2c/adv7604.c
--- linux-libre-4.4-gnu/drivers/media/i2c/adv7604.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/i2c/adv7604.c	2017-12-20 04:05:01.000000000 -0500
@@ -1960,10 +1960,9 @@ static int adv76xx_isr(struct v4l2_subde
 	}
 
 	/* tx 5v detect */
-	tx_5v = io_read(sd, 0x70) & info->cable_det_mask;
+	tx_5v = irq_reg_0x70 & info->cable_det_mask;
 	if (tx_5v) {
 		v4l2_dbg(1, debug, sd, "%s: tx_5v: 0x%x\n", __func__, tx_5v);
-		io_write(sd, 0x71, tx_5v);
 		adv76xx_s_detect_tx_5v_ctrl(sd);
 		if (handled)
 			*handled = true;
@@ -2857,6 +2856,9 @@ static int adv76xx_parse_dt(struct adv76
 	state->pdata.alt_data_sat = 1;
 	state->pdata.op_format_mode_sel = ADV7604_OP_FORMAT_MODE0;
 	state->pdata.bus_order = ADV7604_BUS_ORDER_RGB;
+	state->pdata.dr_str_data = ADV76XX_DR_STR_MEDIUM_HIGH;
+	state->pdata.dr_str_clk = ADV76XX_DR_STR_MEDIUM_HIGH;
+	state->pdata.dr_str_sync = ADV76XX_DR_STR_MEDIUM_HIGH;
 
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/i2c/ir-kbd-i2c.c linux-libre-4.4.107-gnu/drivers/media/i2c/ir-kbd-i2c.c
--- linux-libre-4.4-gnu/drivers/media/i2c/ir-kbd-i2c.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/i2c/ir-kbd-i2c.c	2017-12-20 04:05:01.000000000 -0500
@@ -478,7 +478,6 @@ static const struct i2c_device_id ir_kbd
 	{ "ir_rx_z8f0811_hdpvr", 0 },
 	{ }
 };
-MODULE_DEVICE_TABLE(i2c, ir_kbd_id);
 
 static struct i2c_driver ir_kbd_driver = {
 	.driver = {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/i2c/Kconfig linux-libre-4.4.107-gnu/drivers/media/i2c/Kconfig
--- linux-libre-4.4-gnu/drivers/media/i2c/Kconfig	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/i2c/Kconfig	2017-12-20 04:05:01.000000000 -0500
@@ -607,6 +607,7 @@ config VIDEO_S5K6A3
 config VIDEO_S5K4ECGX
         tristate "Samsung S5K4ECGX sensor support"
         depends on I2C && VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API
+	select CRC32
         ---help---
           This is a V4L2 sensor-level driver for Samsung S5K4ECGX 5M
           camera sensor with an embedded SoC image signal processor.
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/i2c/s5c73m3/s5c73m3-ctrls.c linux-libre-4.4.107-gnu/drivers/media/i2c/s5c73m3/s5c73m3-ctrls.c
--- linux-libre-4.4-gnu/drivers/media/i2c/s5c73m3/s5c73m3-ctrls.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/i2c/s5c73m3/s5c73m3-ctrls.c	2017-12-20 04:05:01.000000000 -0500
@@ -211,7 +211,7 @@ static int s5c73m3_3a_lock(struct s5c73m
 	}
 
 	if ((ctrl->val ^ ctrl->cur.val) & V4L2_LOCK_FOCUS)
-		ret = s5c73m3_af_run(state, ~af_lock);
+		ret = s5c73m3_af_run(state, !af_lock);
 
 	return ret;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/pci/bt8xx/bttv-driver.c linux-libre-4.4.107-gnu/drivers/media/pci/bt8xx/bttv-driver.c
--- linux-libre-4.4-gnu/drivers/media/pci/bt8xx/bttv-driver.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/pci/bt8xx/bttv-driver.c	2017-12-20 04:05:01.000000000 -0500
@@ -2334,6 +2334,19 @@ static int bttv_g_fmt_vid_overlay(struct
 	return 0;
 }
 
+static void bttv_get_width_mask_vid_cap(const struct bttv_format *fmt,
+					unsigned int *width_mask,
+					unsigned int *width_bias)
+{
+	if (fmt->flags & FORMAT_FLAGS_PLANAR) {
+		*width_mask = ~15; /* width must be a multiple of 16 pixels */
+		*width_bias = 8;   /* nearest */
+	} else {
+		*width_mask = ~3; /* width must be a multiple of 4 pixels */
+		*width_bias = 2;  /* nearest */
+	}
+}
+
 static int bttv_try_fmt_vid_cap(struct file *file, void *priv,
 						struct v4l2_format *f)
 {
@@ -2343,6 +2356,7 @@ static int bttv_try_fmt_vid_cap(struct f
 	enum v4l2_field field;
 	__s32 width, height;
 	__s32 height2;
+	unsigned int width_mask, width_bias;
 	int rc;
 
 	fmt = format_by_fourcc(f->fmt.pix.pixelformat);
@@ -2375,9 +2389,9 @@ static int bttv_try_fmt_vid_cap(struct f
 	width = f->fmt.pix.width;
 	height = f->fmt.pix.height;
 
+	bttv_get_width_mask_vid_cap(fmt, &width_mask, &width_bias);
 	rc = limit_scaled_size_lock(fh, &width, &height, field,
-			       /* width_mask: 4 pixels */ ~3,
-			       /* width_bias: nearest */ 2,
+			       width_mask, width_bias,
 			       /* adjust_size */ 1,
 			       /* adjust_crop */ 0);
 	if (0 != rc)
@@ -2410,6 +2424,7 @@ static int bttv_s_fmt_vid_cap(struct fil
 	struct bttv_fh *fh = priv;
 	struct bttv *btv = fh->btv;
 	__s32 width, height;
+	unsigned int width_mask, width_bias;
 	enum v4l2_field field;
 
 	retval = bttv_switch_type(fh, f->type);
@@ -2424,9 +2439,10 @@ static int bttv_s_fmt_vid_cap(struct fil
 	height = f->fmt.pix.height;
 	field = f->fmt.pix.field;
 
+	fmt = format_by_fourcc(f->fmt.pix.pixelformat);
+	bttv_get_width_mask_vid_cap(fmt, &width_mask, &width_bias);
 	retval = limit_scaled_size_lock(fh, &width, &height, f->fmt.pix.field,
-			       /* width_mask: 4 pixels */ ~3,
-			       /* width_bias: nearest */ 2,
+			       width_mask, width_bias,
 			       /* adjust_size */ 1,
 			       /* adjust_crop */ 1);
 	if (0 != retval)
@@ -2434,8 +2450,6 @@ static int bttv_s_fmt_vid_cap(struct fil
 
 	f->fmt.pix.field = field;
 
-	fmt = format_by_fourcc(f->fmt.pix.pixelformat);
-
 	/* update our state informations */
 	fh->fmt              = fmt;
 	fh->cap.field        = f->fmt.pix.field;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/pci/bt8xx/dvb-bt8xx.c linux-libre-4.4.107-gnu/drivers/media/pci/bt8xx/dvb-bt8xx.c
--- linux-libre-4.4-gnu/drivers/media/pci/bt8xx/dvb-bt8xx.c	2016-01-10 20:58:38.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/pci/bt8xx/dvb-bt8xx.c	2017-12-20 11:14:14.000000000 -0500
@@ -680,6 +680,7 @@ static void frontend_init(struct dvb_bt8
 		/*	DST is not a frontend, attaching the ASIC	*/
 		if (dvb_attach(dst_attach, state, &card->dvb_adapter) == NULL) {
 			pr_err("%s: Could not find a Twinhan DST\n", __func__);
+			kfree(state);
 			break;
 		}
 		/*	Attach other DST peripherals if any		*/
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/pci/cx23885/cx23885-dvb.c linux-libre-4.4.107-gnu/drivers/media/pci/cx23885/cx23885-dvb.c
--- linux-libre-4.4-gnu/drivers/media/pci/cx23885/cx23885-dvb.c	2016-01-10 20:58:27.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/pci/cx23885/cx23885-dvb.c	2017-12-20 11:13:46.000000000 -0500
@@ -2168,11 +2168,12 @@ static int dvb_register(struct cx23885_t
 		}
 		port->i2c_client_tuner = client_tuner;
 		break;
-	case CX23885_BOARD_HAUPPAUGE_HVR5525:
-		switch (port->nr) {
+	case CX23885_BOARD_HAUPPAUGE_HVR5525: {
 		struct m88rs6000t_config m88rs6000t_config;
 		struct a8293_platform_data a8293_pdata = {};
 
+		switch (port->nr) {
+
 		/* port b - satellite */
 		case 1:
 			/* attach frontend */
@@ -2267,6 +2268,7 @@ static int dvb_register(struct cx23885_t
 			break;
 		}
 		break;
+	}
 	default:
 		printk(KERN_INFO "%s: The frontend of your DVB/ATSC card "
 			" isn't supported yet\n",
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/pci/cx88/cx88-cards.c linux-libre-4.4.107-gnu/drivers/media/pci/cx88/cx88-cards.c
--- linux-libre-4.4-gnu/drivers/media/pci/cx88/cx88-cards.c	2016-01-10 20:58:27.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/pci/cx88/cx88-cards.c	2017-12-20 11:13:46.000000000 -0500
@@ -3691,7 +3691,14 @@ struct cx88_core *cx88_core_create(struc
 	core->nr = nr;
 	sprintf(core->name, "cx88[%d]", core->nr);
 
-	core->tvnorm = V4L2_STD_NTSC_M;
+	/*
+	 * Note: Setting initial standard here would cause first call to
+	 * cx88_set_tvnorm() to return without programming any registers.  Leave
+	 * it blank for at this point and it will get set later in
+	 * cx8800_initdev()
+	 */
+	core->tvnorm  = 0;
+
 	core->width   = 320;
 	core->height  = 240;
 	core->field   = V4L2_FIELD_INTERLACED;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/pci/cx88/cx88-video.c linux-libre-4.4.107-gnu/drivers/media/pci/cx88/cx88-video.c
--- linux-libre-4.4-gnu/drivers/media/pci/cx88/cx88-video.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/pci/cx88/cx88-video.c	2017-12-20 04:05:01.000000000 -0500
@@ -1429,7 +1429,7 @@ static int cx8800_initdev(struct pci_dev
 
 	/* initial device configuration */
 	mutex_lock(&core->lock);
-	cx88_set_tvnorm(core, core->tvnorm);
+	cx88_set_tvnorm(core, V4L2_STD_NTSC_M);
 	v4l2_ctrl_handler_setup(&core->video_hdl);
 	v4l2_ctrl_handler_setup(&core->audio_hdl);
 	cx88_video_mux(core, 0);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/pci/dm1105/Kconfig linux-libre-4.4.107-gnu/drivers/media/pci/dm1105/Kconfig
--- linux-libre-4.4-gnu/drivers/media/pci/dm1105/Kconfig	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/pci/dm1105/Kconfig	2017-12-20 04:05:01.000000000 -0500
@@ -1,6 +1,6 @@
 config DVB_DM1105
 	tristate "SDMC DM1105 based PCI cards"
-	depends on DVB_CORE && PCI && I2C
+	depends on DVB_CORE && PCI && I2C && I2C_ALGOBIT
 	select DVB_PLL if MEDIA_SUBDRV_AUTOSELECT
 	select DVB_STV0299 if MEDIA_SUBDRV_AUTOSELECT
 	select DVB_STV0288 if MEDIA_SUBDRV_AUTOSELECT
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/pci/saa7134/saa7134-alsa.c linux-libre-4.4.107-gnu/drivers/media/pci/saa7134/saa7134-alsa.c
--- linux-libre-4.4-gnu/drivers/media/pci/saa7134/saa7134-alsa.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/pci/saa7134/saa7134-alsa.c	2017-12-20 04:05:01.000000000 -0500
@@ -1211,6 +1211,8 @@ static int alsa_device_init(struct saa71
 
 static int alsa_device_exit(struct saa7134_dev *dev)
 {
+	if (!snd_saa7134_cards[dev->nr])
+		return 1;
 
 	snd_card_free(snd_saa7134_cards[dev->nr]);
 	snd_saa7134_cards[dev->nr] = NULL;
@@ -1260,7 +1262,8 @@ static void saa7134_alsa_exit(void)
 	int idx;
 
 	for (idx = 0; idx < SNDRV_CARDS; idx++) {
-		snd_card_free(snd_saa7134_cards[idx]);
+		if (snd_saa7134_cards[idx])
+			snd_card_free(snd_saa7134_cards[idx]);
 	}
 
 	saa7134_dmasound_init = NULL;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/pci/saa7134/saa7134-i2c.c linux-libre-4.4.107-gnu/drivers/media/pci/saa7134/saa7134-i2c.c
--- linux-libre-4.4-gnu/drivers/media/pci/saa7134/saa7134-i2c.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/pci/saa7134/saa7134-i2c.c	2017-12-20 04:05:01.000000000 -0500
@@ -355,12 +355,43 @@ static struct i2c_client saa7134_client_
 
 /* ----------------------------------------------------------- */
 
+/* On Medion 7134 reading EEPROM needs DVB-T demod i2c gate open */
+static void saa7134_i2c_eeprom_md7134_gate(struct saa7134_dev *dev)
+{
+	u8 subaddr = 0x7, dmdregval;
+	u8 data[2];
+	int ret;
+	struct i2c_msg i2cgatemsg_r[] = { {.addr = 0x08, .flags = 0,
+					   .buf = &subaddr, .len = 1},
+					  {.addr = 0x08,
+					   .flags = I2C_M_RD,
+					   .buf = &dmdregval, .len = 1}
+					};
+	struct i2c_msg i2cgatemsg_w[] = { {.addr = 0x08, .flags = 0,
+					   .buf = data, .len = 2} };
+
+	ret = i2c_transfer(&dev->i2c_adap, i2cgatemsg_r, 2);
+	if ((ret == 2) && (dmdregval & 0x2)) {
+		pr_debug("%s: DVB-T demod i2c gate was left closed\n",
+			 dev->name);
+
+		data[0] = subaddr;
+		data[1] = (dmdregval & ~0x2);
+		if (i2c_transfer(&dev->i2c_adap, i2cgatemsg_w, 1) != 1)
+			pr_err("%s: EEPROM i2c gate open failure\n",
+			  dev->name);
+	}
+}
+
 static int
 saa7134_i2c_eeprom(struct saa7134_dev *dev, unsigned char *eedata, int len)
 {
 	unsigned char buf;
 	int i,err;
 
+	if (dev->board == SAA7134_BOARD_MD7134)
+		saa7134_i2c_eeprom_md7134_gate(dev);
+
 	dev->i2c_client.addr = 0xa0 >> 1;
 	buf = 0;
 	if (1 != (err = i2c_master_send(&dev->i2c_client,&buf,1))) {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/pci/saa7134/saa7134-video.c linux-libre-4.4.107-gnu/drivers/media/pci/saa7134/saa7134-video.c
--- linux-libre-4.4-gnu/drivers/media/pci/saa7134/saa7134-video.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/pci/saa7134/saa7134-video.c	2017-12-20 04:05:01.000000000 -0500
@@ -1219,10 +1219,13 @@ static int saa7134_g_fmt_vid_cap(struct
 	f->fmt.pix.height       = dev->height;
 	f->fmt.pix.field        = dev->field;
 	f->fmt.pix.pixelformat  = dev->fmt->fourcc;
-	f->fmt.pix.bytesperline =
-		(f->fmt.pix.width * dev->fmt->depth) >> 3;
+	if (dev->fmt->planar)
+		f->fmt.pix.bytesperline = f->fmt.pix.width;
+	else
+		f->fmt.pix.bytesperline =
+			(f->fmt.pix.width * dev->fmt->depth) / 8;
 	f->fmt.pix.sizeimage =
-		f->fmt.pix.height * f->fmt.pix.bytesperline;
+		(f->fmt.pix.height * f->fmt.pix.width * dev->fmt->depth) / 8;
 	f->fmt.pix.colorspace   = V4L2_COLORSPACE_SMPTE170M;
 	return 0;
 }
@@ -1298,10 +1301,13 @@ static int saa7134_try_fmt_vid_cap(struc
 	if (f->fmt.pix.height > maxh)
 		f->fmt.pix.height = maxh;
 	f->fmt.pix.width &= ~0x03;
-	f->fmt.pix.bytesperline =
-		(f->fmt.pix.width * fmt->depth) >> 3;
+	if (fmt->planar)
+		f->fmt.pix.bytesperline = f->fmt.pix.width;
+	else
+		f->fmt.pix.bytesperline =
+			(f->fmt.pix.width * fmt->depth) / 8;
 	f->fmt.pix.sizeimage =
-		f->fmt.pix.height * f->fmt.pix.bytesperline;
+		(f->fmt.pix.height * f->fmt.pix.width * fmt->depth) / 8;
 	f->fmt.pix.colorspace   = V4L2_COLORSPACE_SMPTE170M;
 
 	return 0;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/pci/saa7164/saa7164-bus.c linux-libre-4.4.107-gnu/drivers/media/pci/saa7164/saa7164-bus.c
--- linux-libre-4.4-gnu/drivers/media/pci/saa7164/saa7164-bus.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/pci/saa7164/saa7164-bus.c	2017-12-20 04:05:01.000000000 -0500
@@ -393,11 +393,11 @@ int saa7164_bus_get(struct saa7164_dev *
 	msg_tmp.size = le16_to_cpu((__force __le16)msg_tmp.size);
 	msg_tmp.command = le32_to_cpu((__force __le32)msg_tmp.command);
 	msg_tmp.controlselector = le16_to_cpu((__force __le16)msg_tmp.controlselector);
+	memcpy(msg, &msg_tmp, sizeof(*msg));
 
 	/* No need to update the read positions, because this was a peek */
 	/* If the caller specifically want to peek, return */
 	if (peekonly) {
-		memcpy(msg, &msg_tmp, sizeof(*msg));
 		goto peekout;
 	}
 
@@ -442,21 +442,15 @@ int saa7164_bus_get(struct saa7164_dev *
 		space_rem = bus->m_dwSizeGetRing - curr_grp;
 
 		if (space_rem < sizeof(*msg)) {
-			/* msg wraps around the ring */
-			memcpy_fromio(msg, bus->m_pdwGetRing + curr_grp, space_rem);
-			memcpy_fromio((u8 *)msg + space_rem, bus->m_pdwGetRing,
-				sizeof(*msg) - space_rem);
 			if (buf)
 				memcpy_fromio(buf, bus->m_pdwGetRing + sizeof(*msg) -
 					space_rem, buf_size);
 
 		} else if (space_rem == sizeof(*msg)) {
-			memcpy_fromio(msg, bus->m_pdwGetRing + curr_grp, sizeof(*msg));
 			if (buf)
 				memcpy_fromio(buf, bus->m_pdwGetRing, buf_size);
 		} else {
 			/* Additional data wraps around the ring */
-			memcpy_fromio(msg, bus->m_pdwGetRing + curr_grp, sizeof(*msg));
 			if (buf) {
 				memcpy_fromio(buf, bus->m_pdwGetRing + curr_grp +
 					sizeof(*msg), space_rem - sizeof(*msg));
@@ -469,15 +463,10 @@ int saa7164_bus_get(struct saa7164_dev *
 
 	} else {
 		/* No wrapping */
-		memcpy_fromio(msg, bus->m_pdwGetRing + curr_grp, sizeof(*msg));
 		if (buf)
 			memcpy_fromio(buf, bus->m_pdwGetRing + curr_grp + sizeof(*msg),
 				buf_size);
 	}
-	/* Convert from little endian to CPU */
-	msg->size = le16_to_cpu((__force __le16)msg->size);
-	msg->command = le32_to_cpu((__force __le32)msg->command);
-	msg->controlselector = le16_to_cpu((__force __le16)msg->controlselector);
 
 	/* Update the read positions, adjusting the ring */
 	saa7164_writel(bus->m_dwGetReadPos, new_grp);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/pci/solo6x10/solo6x10.h linux-libre-4.4.107-gnu/drivers/media/pci/solo6x10/solo6x10.h
--- linux-libre-4.4-gnu/drivers/media/pci/solo6x10/solo6x10.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/pci/solo6x10/solo6x10.h	2017-12-20 04:05:01.000000000 -0500
@@ -286,7 +286,10 @@ static inline u32 solo_reg_read(struct s
 static inline void solo_reg_write(struct solo_dev *solo_dev, int reg,
 				  u32 data)
 {
+	u16 val;
+
 	writel(data, solo_dev->reg_base + reg);
+	pci_read_config_word(solo_dev->pdev, PCI_STATUS, &val);
 }
 
 static inline void solo_irq_on(struct solo_dev *dev, u32 mask)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/pci/ttpci/av7110_hw.c linux-libre-4.4.107-gnu/drivers/media/pci/ttpci/av7110_hw.c
--- linux-libre-4.4-gnu/drivers/media/pci/ttpci/av7110_hw.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/pci/ttpci/av7110_hw.c	2017-12-20 04:05:01.000000000 -0500
@@ -56,11 +56,11 @@
    by Nathan Laredo <laredo@gnu.org> */
 
 int av7110_debiwrite(struct av7110 *av7110, u32 config,
-		     int addr, u32 val, int count)
+		     int addr, u32 val, unsigned int count)
 {
 	struct saa7146_dev *dev = av7110->dev;
 
-	if (count <= 0 || count > 32764) {
+	if (count > 32764) {
 		printk("%s: invalid count %d\n", __func__, count);
 		return -1;
 	}
@@ -78,12 +78,12 @@ int av7110_debiwrite(struct av7110 *av71
 	return 0;
 }
 
-u32 av7110_debiread(struct av7110 *av7110, u32 config, int addr, int count)
+u32 av7110_debiread(struct av7110 *av7110, u32 config, int addr, unsigned int count)
 {
 	struct saa7146_dev *dev = av7110->dev;
 	u32 result = 0;
 
-	if (count > 32764 || count <= 0) {
+	if (count > 32764) {
 		printk("%s: invalid count %d\n", __func__, count);
 		return 0;
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/pci/ttpci/av7110_hw.h linux-libre-4.4.107-gnu/drivers/media/pci/ttpci/av7110_hw.h
--- linux-libre-4.4-gnu/drivers/media/pci/ttpci/av7110_hw.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/pci/ttpci/av7110_hw.h	2017-12-20 04:05:01.000000000 -0500
@@ -377,14 +377,14 @@ extern int av7110_fw_request(struct av71
 
 /* DEBI (saa7146 data extension bus interface) access */
 extern int av7110_debiwrite(struct av7110 *av7110, u32 config,
-			    int addr, u32 val, int count);
+			    int addr, u32 val, unsigned int count);
 extern u32 av7110_debiread(struct av7110 *av7110, u32 config,
-			   int addr, int count);
+			   int addr, unsigned int count);
 
 
 /* DEBI during interrupt */
 /* single word writes */
-static inline void iwdebi(struct av7110 *av7110, u32 config, int addr, u32 val, int count)
+static inline void iwdebi(struct av7110 *av7110, u32 config, int addr, u32 val, unsigned int count)
 {
 	av7110_debiwrite(av7110, config, addr, val, count);
 }
@@ -397,7 +397,7 @@ static inline void mwdebi(struct av7110
 	av7110_debiwrite(av7110, config, addr, 0, count);
 }
 
-static inline u32 irdebi(struct av7110 *av7110, u32 config, int addr, u32 val, int count)
+static inline u32 irdebi(struct av7110 *av7110, u32 config, int addr, u32 val, unsigned int count)
 {
 	u32 res;
 
@@ -408,7 +408,7 @@ static inline u32 irdebi(struct av7110 *
 }
 
 /* DEBI outside interrupts, only for count <= 4! */
-static inline void wdebi(struct av7110 *av7110, u32 config, int addr, u32 val, int count)
+static inline void wdebi(struct av7110 *av7110, u32 config, int addr, u32 val, unsigned int count)
 {
 	unsigned long flags;
 
@@ -417,7 +417,7 @@ static inline void wdebi(struct av7110 *
 	spin_unlock_irqrestore(&av7110->debilock, flags);
 }
 
-static inline u32 rdebi(struct av7110 *av7110, u32 config, int addr, u32 val, int count)
+static inline u32 rdebi(struct av7110 *av7110, u32 config, int addr, u32 val, unsigned int count)
 {
 	unsigned long flags;
 	u32 res;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/platform/am437x/am437x-vpfe.c linux-libre-4.4.107-gnu/drivers/media/platform/am437x/am437x-vpfe.c
--- linux-libre-4.4-gnu/drivers/media/platform/am437x/am437x-vpfe.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/platform/am437x/am437x-vpfe.c	2017-12-20 04:05:01.000000000 -0500
@@ -1576,7 +1576,7 @@ static int vpfe_s_fmt(struct file *file,
 		return -EBUSY;
 	}
 
-	ret = vpfe_try_fmt(file, priv, &format);
+	ret = __vpfe_get_format(vpfe, &format, &bpp);
 	if (ret)
 		return ret;
 
@@ -1706,7 +1706,7 @@ static int vpfe_get_app_input_index(stru
 		sdinfo = &cfg->sub_devs[i];
 		client = v4l2_get_subdevdata(sdinfo->sd);
 		if (client->addr == curr_client->addr &&
-		    client->adapter->nr == client->adapter->nr) {
+		    client->adapter->nr == curr_client->adapter->nr) {
 			if (vpfe->current_input >= 1)
 				return -1;
 			*app_input_index = j + vpfe->current_input;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/platform/blackfin/ppi.c linux-libre-4.4.107-gnu/drivers/media/platform/blackfin/ppi.c
--- linux-libre-4.4-gnu/drivers/media/platform/blackfin/ppi.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/platform/blackfin/ppi.c	2017-12-20 04:05:01.000000000 -0500
@@ -214,6 +214,8 @@ static int ppi_set_params(struct ppi_if
 	if (params->dlen > 24 || params->dlen <= 0)
 		return -EINVAL;
 	pctrl = devm_pinctrl_get(ppi->dev);
+	if (IS_ERR(pctrl))
+		return PTR_ERR(pctrl);
 	pstate = pinctrl_lookup_state(pctrl,
 				      pin_state[(params->dlen + 7) / 8 - 1]);
 	if (pinctrl_select_state(pctrl, pstate))
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/platform/coda/coda-bit.c linux-libre-4.4.107-gnu/drivers/media/platform/coda/coda-bit.c
--- linux-libre-4.4-gnu/drivers/media/platform/coda/coda-bit.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/platform/coda/coda-bit.c	2017-12-20 04:05:01.000000000 -0500
@@ -1342,7 +1342,7 @@ static void coda_finish_encode(struct co
 
 	/* Calculate bytesused field */
 	if (dst_buf->sequence == 0) {
-		vb2_set_plane_payload(&dst_buf->vb2_buf, 0,
+		vb2_set_plane_payload(&dst_buf->vb2_buf, 0, wr_ptr - start_ptr +
 					ctx->vpu_header_size[0] +
 					ctx->vpu_header_size[1] +
 					ctx->vpu_header_size[2]);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/platform/coda/coda-common.c linux-libre-4.4.107-gnu/drivers/media/platform/coda/coda-common.c
--- linux-libre-4.4-gnu/drivers/media/platform/coda/coda-common.c	2016-01-10 21:02:11.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/platform/coda/coda-common.c	2017-12-20 11:20:37.000000000 -0500
@@ -2119,14 +2119,12 @@ static int coda_probe(struct platform_de
 
 	pdev_id = of_id ? of_id->data : platform_get_device_id(pdev);
 
-	if (of_id) {
+	if (of_id)
 		dev->devtype = of_id->data;
-	} else if (pdev_id) {
+	else if (pdev_id)
 		dev->devtype = &coda_devdata[pdev_id->driver_data];
-	} else {
-		ret = -EINVAL;
-		goto err_v4l2_register;
-	}
+	else
+		return -EINVAL;
 
 	spin_lock_init(&dev->irqlock);
 	INIT_LIST_HEAD(&dev->instances);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/platform/davinci/vpfe_capture.c linux-libre-4.4.107-gnu/drivers/media/platform/davinci/vpfe_capture.c
--- linux-libre-4.4-gnu/drivers/media/platform/davinci/vpfe_capture.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/platform/davinci/vpfe_capture.c	2017-12-20 04:05:01.000000000 -0500
@@ -1709,27 +1709,9 @@ static long vpfe_param_handler(struct fi
 
 	switch (cmd) {
 	case VPFE_CMD_S_CCDC_RAW_PARAMS:
+		ret = -EINVAL;
 		v4l2_warn(&vpfe_dev->v4l2_dev,
-			  "VPFE_CMD_S_CCDC_RAW_PARAMS: experimental ioctl\n");
-		if (ccdc_dev->hw_ops.set_params) {
-			ret = ccdc_dev->hw_ops.set_params(param);
-			if (ret) {
-				v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev,
-					"Error setting parameters in CCDC\n");
-				goto unlock_out;
-			}
-			ret = vpfe_get_ccdc_image_format(vpfe_dev,
-							 &vpfe_dev->fmt);
-			if (ret < 0) {
-				v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev,
-					"Invalid image format at CCDC\n");
-				goto unlock_out;
-			}
-		} else {
-			ret = -EINVAL;
-			v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev,
-				"VPFE_CMD_S_CCDC_RAW_PARAMS not supported\n");
-		}
+			"VPFE_CMD_S_CCDC_RAW_PARAMS not supported\n");
 		break;
 	default:
 		ret = -ENOTTY;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/platform/exynos4-is/fimc-is.c linux-libre-4.4.107-gnu/drivers/media/platform/exynos4-is/fimc-is.c
--- linux-libre-4.4-gnu/drivers/media/platform/exynos4-is/fimc-is.c	2016-01-10 21:02:45.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/platform/exynos4-is/fimc-is.c	2017-12-20 11:21:47.000000000 -0500
@@ -815,12 +815,13 @@ static int fimc_is_probe(struct platform
 	is->irq = irq_of_parse_and_map(dev->of_node, 0);
 	if (!is->irq) {
 		dev_err(dev, "no irq found\n");
-		return -EINVAL;
+		ret = -EINVAL;
+		goto err_iounmap;
 	}
 
 	ret = fimc_is_get_clocks(is);
 	if (ret < 0)
-		return ret;
+		goto err_iounmap;
 
 	platform_set_drvdata(pdev, is);
 
@@ -880,6 +881,8 @@ err_irq:
 	free_irq(is->irq, is);
 err_clk:
 	fimc_is_put_clocks(is);
+err_iounmap:
+	iounmap(is->pmu_regs);
 	return ret;
 }
 
@@ -935,6 +938,7 @@ static int fimc_is_remove(struct platfor
 	fimc_is_unregister_subdevs(is);
 	vb2_dma_contig_cleanup_ctx(is->alloc_ctx);
 	fimc_is_put_clocks(is);
+	iounmap(is->pmu_regs);
 	fimc_is_debugfs_remove(is);
 	release_firmware(is->fw.f_w);
 	fimc_is_free_cpu_memory(is);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/platform/exynos-gsc/gsc-core.c linux-libre-4.4.107-gnu/drivers/media/platform/exynos-gsc/gsc-core.c
--- linux-libre-4.4-gnu/drivers/media/platform/exynos-gsc/gsc-core.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/platform/exynos-gsc/gsc-core.c	2017-12-20 04:05:01.000000000 -0500
@@ -849,9 +849,7 @@ int gsc_prepare_addr(struct gsc_ctx *ctx
 
 	if ((frame->fmt->pixelformat == V4L2_PIX_FMT_VYUY) ||
 		(frame->fmt->pixelformat == V4L2_PIX_FMT_YVYU) ||
-		(frame->fmt->pixelformat == V4L2_PIX_FMT_NV61) ||
 		(frame->fmt->pixelformat == V4L2_PIX_FMT_YVU420) ||
-		(frame->fmt->pixelformat == V4L2_PIX_FMT_NV21) ||
 		(frame->fmt->pixelformat == V4L2_PIX_FMT_YVU420M))
 		swap(addr->cb, addr->cr);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/platform/s5p-jpeg/jpeg-core.c linux-libre-4.4.107-gnu/drivers/media/platform/s5p-jpeg/jpeg-core.c
--- linux-libre-4.4-gnu/drivers/media/platform/s5p-jpeg/jpeg-core.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/platform/s5p-jpeg/jpeg-core.c	2017-12-20 04:05:01.000000000 -0500
@@ -1098,10 +1098,10 @@ static bool s5p_jpeg_parse_hdr(struct s5
 			       struct s5p_jpeg_ctx *ctx)
 {
 	int c, components = 0, notfound, n_dht = 0, n_dqt = 0;
-	unsigned int height, width, word, subsampling = 0, sos = 0, sof = 0,
-		     sof_len = 0;
-	unsigned int dht[S5P_JPEG_MAX_MARKER], dht_len[S5P_JPEG_MAX_MARKER],
-		     dqt[S5P_JPEG_MAX_MARKER], dqt_len[S5P_JPEG_MAX_MARKER];
+	unsigned int height = 0, width = 0, word, subsampling = 0;
+	unsigned int sos = 0, sof = 0, sof_len = 0;
+	unsigned int dht[S5P_JPEG_MAX_MARKER], dht_len[S5P_JPEG_MAX_MARKER];
+	unsigned int dqt[S5P_JPEG_MAX_MARKER], dqt_len[S5P_JPEG_MAX_MARKER];
 	long length;
 	struct s5p_jpeg_buffer jpeg_buffer;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/platform/s5p-mfc/s5p_mfc.c linux-libre-4.4.107-gnu/drivers/media/platform/s5p-mfc/s5p_mfc.c
--- linux-libre-4.4-gnu/drivers/media/platform/s5p-mfc/s5p_mfc.c	2016-01-10 21:03:19.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/platform/s5p-mfc/s5p_mfc.c	2017-12-20 11:22:57.000000000 -0500
@@ -173,6 +173,7 @@ static void s5p_mfc_watchdog_worker(stru
 		}
 		s5p_mfc_clock_on();
 		ret = s5p_mfc_init_hw(dev);
+		s5p_mfc_clock_off();
 		if (ret)
 			mfc_err("Failed to reinit FW\n");
 	}
@@ -1029,6 +1030,11 @@ static int match_child(struct device *de
 	return !strcmp(dev_name(dev), (char *)data);
 }
 
+static void s5p_mfc_memdev_release(struct device *dev)
+{
+	dma_release_declared_memory(dev);
+}
+
 static void *mfc_get_drv_data(struct platform_device *pdev);
 
 static int s5p_mfc_alloc_memdevs(struct s5p_mfc_dev *dev)
@@ -1041,6 +1047,9 @@ static int s5p_mfc_alloc_memdevs(struct
 		mfc_err("Not enough memory\n");
 		return -ENOMEM;
 	}
+
+	dev_set_name(dev->mem_dev_l, "%s", "s5p-mfc-l");
+	dev->mem_dev_l->release = s5p_mfc_memdev_release;
 	device_initialize(dev->mem_dev_l);
 	of_property_read_u32_array(dev->plat_dev->dev.of_node,
 			"samsung,mfc-l", mem_info, 2);
@@ -1058,6 +1067,9 @@ static int s5p_mfc_alloc_memdevs(struct
 		mfc_err("Not enough memory\n");
 		return -ENOMEM;
 	}
+
+	dev_set_name(dev->mem_dev_r, "%s", "s5p-mfc-r");
+	dev->mem_dev_r->release = s5p_mfc_memdev_release;
 	device_initialize(dev->mem_dev_r);
 	of_property_read_u32_array(dev->plat_dev->dev.of_node,
 			"samsung,mfc-r", mem_info, 2);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/platform/vsp1/vsp1_sru.c linux-libre-4.4.107-gnu/drivers/media/platform/vsp1/vsp1_sru.c
--- linux-libre-4.4-gnu/drivers/media/platform/vsp1/vsp1_sru.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/platform/vsp1/vsp1_sru.c	2017-12-20 04:05:01.000000000 -0500
@@ -154,6 +154,7 @@ static int sru_s_stream(struct v4l2_subd
 	mutex_lock(sru->ctrls.lock);
 	ctrl0 |= vsp1_sru_read(sru, VI6_SRU_CTRL0)
 	       & (VI6_SRU_CTRL0_PARAM0_MASK | VI6_SRU_CTRL0_PARAM1_MASK);
+	vsp1_sru_write(sru, VI6_SRU_CTRL0, ctrl0);
 	mutex_unlock(sru->ctrls.lock);
 
 	vsp1_sru_write(sru, VI6_SRU_CTRL1, VI6_SRU_CTRL1_PARAM5);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/rc/imon.c linux-libre-4.4.107-gnu/drivers/media/rc/imon.c
--- linux-libre-4.4-gnu/drivers/media/rc/imon.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/rc/imon.c	2017-12-20 04:05:01.000000000 -0500
@@ -1629,7 +1629,7 @@ static void imon_incoming_packet(struct
 	if (kc == KEY_KEYBOARD && !ictx->release_code) {
 		ictx->last_keycode = kc;
 		if (!nomouse) {
-			ictx->pad_mouse = ~(ictx->pad_mouse) & 0x1;
+			ictx->pad_mouse = !ictx->pad_mouse;
 			dev_dbg(dev, "toggling to %s mode\n",
 				ictx->pad_mouse ? "mouse" : "keyboard");
 			spin_unlock_irqrestore(&ictx->kc_lock, flags);
@@ -2419,6 +2419,11 @@ static int imon_probe(struct usb_interfa
 	mutex_lock(&driver_lock);
 
 	first_if = usb_ifnum_to_if(usbdev, 0);
+	if (!first_if) {
+		ret = -ENODEV;
+		goto fail;
+	}
+
 	first_if_ctx = usb_get_intfdata(first_if);
 
 	if (ifnum == 0) {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/rc/ir-lirc-codec.c linux-libre-4.4.107-gnu/drivers/media/rc/ir-lirc-codec.c
--- linux-libre-4.4-gnu/drivers/media/rc/ir-lirc-codec.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/rc/ir-lirc-codec.c	2017-12-20 04:05:01.000000000 -0500
@@ -254,7 +254,7 @@ static long ir_lirc_ioctl(struct file *f
 		return 0;
 
 	case LIRC_GET_REC_RESOLUTION:
-		val = dev->rx_resolution;
+		val = dev->rx_resolution / 1000;
 		break;
 
 	case LIRC_SET_WIDEBAND_RECEIVER:
@@ -286,11 +286,14 @@ static long ir_lirc_ioctl(struct file *f
 		if (!dev->max_timeout)
 			return -ENOSYS;
 
+		/* Check for multiply overflow */
+		if (val > U32_MAX / 1000)
+			return -EINVAL;
+
 		tmp = val * 1000;
 
-		if (tmp < dev->min_timeout ||
-		    tmp > dev->max_timeout)
-				return -EINVAL;
+		if (tmp < dev->min_timeout || tmp > dev->max_timeout)
+			return -EINVAL;
 
 		dev->timeout = tmp;
 		break;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/rc/ir-rc5-decoder.c linux-libre-4.4.107-gnu/drivers/media/rc/ir-rc5-decoder.c
--- linux-libre-4.4-gnu/drivers/media/rc/ir-rc5-decoder.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/rc/ir-rc5-decoder.c	2017-12-20 04:05:01.000000000 -0500
@@ -29,7 +29,7 @@
 #define RC5_BIT_START		(1 * RC5_UNIT)
 #define RC5_BIT_END		(1 * RC5_UNIT)
 #define RC5X_SPACE		(4 * RC5_UNIT)
-#define RC5_TRAILER		(10 * RC5_UNIT) /* In reality, approx 100 */
+#define RC5_TRAILER		(6 * RC5_UNIT) /* In reality, approx 100 */
 
 enum rc5_state {
 	STATE_INACTIVE,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/rc/ite-cir.c linux-libre-4.4.107-gnu/drivers/media/rc/ite-cir.c
--- linux-libre-4.4-gnu/drivers/media/rc/ite-cir.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/rc/ite-cir.c	2017-12-20 04:05:01.000000000 -0500
@@ -263,6 +263,8 @@ static void ite_set_carrier_params(struc
 
 			if (allowance > ITE_RXDCR_MAX)
 				allowance = ITE_RXDCR_MAX;
+
+			use_demodulator = true;
 		}
 	}
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/rc/mceusb.c linux-libre-4.4.107-gnu/drivers/media/rc/mceusb.c
--- linux-libre-4.4-gnu/drivers/media/rc/mceusb.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/rc/mceusb.c	2017-12-20 04:05:01.000000000 -0500
@@ -1321,8 +1321,8 @@ static int mceusb_dev_probe(struct usb_i
 			}
 		}
 	}
-	if (ep_in == NULL) {
-		dev_dbg(&intf->dev, "inbound and/or endpoint not found");
+	if (!ep_in || !ep_out) {
+		dev_dbg(&intf->dev, "required endpoints not found\n");
 		return -ENODEV;
 	}
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/rc/sunxi-cir.c linux-libre-4.4.107-gnu/drivers/media/rc/sunxi-cir.c
--- linux-libre-4.4-gnu/drivers/media/rc/sunxi-cir.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/rc/sunxi-cir.c	2017-12-20 04:05:01.000000000 -0500
@@ -153,6 +153,8 @@ static int sunxi_ir_probe(struct platfor
 	if (!ir)
 		return -ENOMEM;
 
+	spin_lock_init(&ir->ir_lock);
+
 	if (of_device_is_compatible(dn, "allwinner,sun5i-a13-ir"))
 		ir->fifo_size = 64;
 	else
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/tuners/si2157.c linux-libre-4.4.107-gnu/drivers/media/tuners/si2157.c
--- linux-libre-4.4-gnu/drivers/media/tuners/si2157.c	2016-01-10 20:58:24.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/tuners/si2157.c	2017-12-20 11:13:41.000000000 -0500
@@ -168,6 +168,7 @@ static int si2157_init(struct dvb_fronte
 		len = fw->data[fw->size - remaining];
 		if (len > SI2157_ARGLEN) {
 			dev_err(&client->dev, "Bad firmware length\n");
+			ret = -EINVAL;
 			goto err_release_firmware;
 		}
 		memcpy(cmd.args, &fw->data[(fw->size - remaining) + 1], len);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/tuners/tuner-xc2028.c linux-libre-4.4.107-gnu/drivers/media/tuners/tuner-xc2028.c
--- linux-libre-4.4-gnu/drivers/media/tuners/tuner-xc2028.c	2016-01-10 20:58:29.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/tuners/tuner-xc2028.c	2017-12-20 11:13:54.000000000 -0500
@@ -281,6 +281,14 @@ static void free_firmware(struct xc2028_
 	int i;
 	tuner_dbg("%s called\n", __func__);
 
+	/* free allocated f/w string */
+	if (priv->fname != firmware_name)
+		kfree(priv->fname);
+	priv->fname = NULL;
+
+	priv->state = XC2028_NO_FIRMWARE;
+	memset(&priv->cur_fw, 0, sizeof(priv->cur_fw));
+
 	if (!priv->firm)
 		return;
 
@@ -291,9 +299,6 @@ static void free_firmware(struct xc2028_
 
 	priv->firm = NULL;
 	priv->firm_size = 0;
-	priv->state = XC2028_NO_FIRMWARE;
-
-	memset(&priv->cur_fw, 0, sizeof(priv->cur_fw));
 }
 
 static int load_all_firmwares(struct dvb_frontend *fe,
@@ -884,9 +889,8 @@ read_not_reliable:
 	return 0;
 
 fail:
-	priv->state = XC2028_NO_FIRMWARE;
+	free_firmware(priv);
 
-	memset(&priv->cur_fw, 0, sizeof(priv->cur_fw));
 	if (retry_count < 8) {
 		msleep(50);
 		retry_count++;
@@ -1332,11 +1336,8 @@ static int xc2028_dvb_release(struct dvb
 	mutex_lock(&xc2028_list_mutex);
 
 	/* only perform final cleanup if this is the last instance */
-	if (hybrid_tuner_report_instance_count(priv) == 1) {
+	if (hybrid_tuner_report_instance_count(priv) == 1)
 		free_firmware(priv);
-		kfree(priv->ctrl.fname);
-		priv->ctrl.fname = NULL;
-	}
 
 	if (priv)
 		hybrid_tuner_release_state(priv);
@@ -1399,16 +1400,8 @@ static int xc2028_set_config(struct dvb_
 
 	/*
 	 * Copy the config data.
-	 * For the firmware name, keep a local copy of the string,
-	 * in order to avoid troubles during device release.
 	 */
-	kfree(priv->ctrl.fname);
 	memcpy(&priv->ctrl, p, sizeof(priv->ctrl));
-	if (p->fname) {
-		priv->ctrl.fname = kstrdup(p->fname, GFP_KERNEL);
-		if (priv->ctrl.fname == NULL)
-			rc = -ENOMEM;
-	}
 
 	/*
 	 * If firmware name changed, frees firmware. As free_firmware will
@@ -1423,10 +1416,15 @@ static int xc2028_set_config(struct dvb_
 
 	if (priv->state == XC2028_NO_FIRMWARE) {
 		if (!firmware_name[0])
-			priv->fname = priv->ctrl.fname;
+			priv->fname = kstrdup(p->fname, GFP_KERNEL);
 		else
 			priv->fname = firmware_name;
 
+		if (!priv->fname) {
+			rc = -ENOMEM;
+			goto unlock;
+		}
+
 		rc = reject_firmware_nowait(THIS_MODULE, 1,
 					     priv->fname,
 					     priv->i2c_props.adap->dev.parent,
@@ -1439,6 +1437,7 @@ static int xc2028_set_config(struct dvb_
 		} else
 			priv->state = XC2028_WAITING_FIRMWARE;
 	}
+unlock:
 	mutex_unlock(&priv->lock);
 
 	return rc;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/usb/airspy/airspy.c linux-libre-4.4.107-gnu/drivers/media/usb/airspy/airspy.c
--- linux-libre-4.4-gnu/drivers/media/usb/airspy/airspy.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/usb/airspy/airspy.c	2017-12-20 04:05:01.000000000 -0500
@@ -1073,7 +1073,7 @@ static int airspy_probe(struct usb_inter
 	if (ret) {
 		dev_err(s->dev, "Failed to register as video device (%d)\n",
 				ret);
-		goto err_unregister_v4l2_dev;
+		goto err_free_controls;
 	}
 	dev_info(s->dev, "Registered as %s\n",
 			video_device_node_name(&s->vdev));
@@ -1082,7 +1082,6 @@ static int airspy_probe(struct usb_inter
 
 err_free_controls:
 	v4l2_ctrl_handler_free(&s->hdl);
-err_unregister_v4l2_dev:
 	v4l2_device_unregister(&s->v4l2_dev);
 err_free_mem:
 	kfree(s);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/usb/as102/as102_fw.c linux-libre-4.4.107-gnu/drivers/media/usb/as102/as102_fw.c
--- linux-libre-4.4-gnu/drivers/media/usb/as102/as102_fw.c	2016-01-10 21:01:05.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/usb/as102/as102_fw.c	2017-12-20 11:18:48.000000000 -0500
@@ -101,18 +101,23 @@ static int as102_firmware_upload(struct
 				 unsigned char *cmd,
 				 const struct firmware *firmware) {
 
-	struct as10x_fw_pkt_t fw_pkt;
+	struct as10x_fw_pkt_t *fw_pkt;
 	int total_read_bytes = 0, errno = 0;
 	unsigned char addr_has_changed = 0;
 
+	fw_pkt = kmalloc(sizeof(*fw_pkt), GFP_KERNEL);
+	if (!fw_pkt)
+		return -ENOMEM;
+
+
 	for (total_read_bytes = 0; total_read_bytes < firmware->size; ) {
 		int read_bytes = 0, data_len = 0;
 
 		/* parse intel hex line */
 		read_bytes = parse_hex_line(
 				(u8 *) (firmware->data + total_read_bytes),
-				fw_pkt.raw.address,
-				fw_pkt.raw.data,
+				fw_pkt->raw.address,
+				fw_pkt->raw.data,
 				&data_len,
 				&addr_has_changed);
 
@@ -122,28 +127,28 @@ static int as102_firmware_upload(struct
 		/* detect the end of file */
 		total_read_bytes += read_bytes;
 		if (total_read_bytes == firmware->size) {
-			fw_pkt.u.request[0] = 0x00;
-			fw_pkt.u.request[1] = 0x03;
+			fw_pkt->u.request[0] = 0x00;
+			fw_pkt->u.request[1] = 0x03;
 
 			/* send EOF command */
 			errno = bus_adap->ops->upload_fw_pkt(bus_adap,
 							     (uint8_t *)
-							     &fw_pkt, 2, 0);
+							     fw_pkt, 2, 0);
 			if (errno < 0)
 				goto error;
 		} else {
 			if (!addr_has_changed) {
 				/* prepare command to send */
-				fw_pkt.u.request[0] = 0x00;
-				fw_pkt.u.request[1] = 0x01;
+				fw_pkt->u.request[0] = 0x00;
+				fw_pkt->u.request[1] = 0x01;
 
-				data_len += sizeof(fw_pkt.u.request);
-				data_len += sizeof(fw_pkt.raw.address);
+				data_len += sizeof(fw_pkt->u.request);
+				data_len += sizeof(fw_pkt->raw.address);
 
 				/* send cmd to device */
 				errno = bus_adap->ops->upload_fw_pkt(bus_adap,
 								     (uint8_t *)
-								     &fw_pkt,
+								     fw_pkt,
 								     data_len,
 								     0);
 				if (errno < 0)
@@ -152,6 +157,7 @@ static int as102_firmware_upload(struct
 		}
 	}
 error:
+	kfree(fw_pkt);
 	return (errno == 0) ? total_read_bytes : errno;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/usb/au0828/au0828-core.c linux-libre-4.4.107-gnu/drivers/media/usb/au0828/au0828-core.c
--- linux-libre-4.4-gnu/drivers/media/usb/au0828/au0828-core.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/usb/au0828/au0828-core.c	2017-12-20 04:05:01.000000000 -0500
@@ -159,7 +159,7 @@ static void au0828_usb_disconnect(struct
 	   Set the status so poll routines can check and avoid
 	   access after disconnect.
 	*/
-	dev->dev_state = DEV_DISCONNECTED;
+	set_bit(DEV_DISCONNECTED, &dev->dev_state);
 
 	au0828_rc_unregister(dev);
 	/* Digital TV */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/usb/au0828/au0828.h linux-libre-4.4.107-gnu/drivers/media/usb/au0828/au0828.h
--- linux-libre-4.4-gnu/drivers/media/usb/au0828/au0828.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/usb/au0828/au0828.h	2017-12-20 04:05:01.000000000 -0500
@@ -21,6 +21,7 @@
 
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
+#include <linux/bitops.h>
 #include <linux/usb.h>
 #include <linux/i2c.h>
 #include <linux/i2c-algo-bit.h>
@@ -122,9 +123,9 @@ enum au0828_stream_state {
 
 /* device state */
 enum au0828_dev_state {
-	DEV_INITIALIZED = 0x01,
-	DEV_DISCONNECTED = 0x02,
-	DEV_MISCONFIGURED = 0x04
+	DEV_INITIALIZED = 0,
+	DEV_DISCONNECTED = 1,
+	DEV_MISCONFIGURED = 2
 };
 
 struct au0828_dev;
@@ -248,7 +249,7 @@ struct au0828_dev {
 	int input_type;
 	int std_set_in_tuner_core;
 	unsigned int ctrl_input;
-	enum au0828_dev_state dev_state;
+	long unsigned int dev_state; /* defined at enum au0828_dev_state */;
 	enum au0828_stream_state stream_state;
 	wait_queue_head_t open;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/usb/au0828/au0828-input.c linux-libre-4.4.107-gnu/drivers/media/usb/au0828/au0828-input.c
--- linux-libre-4.4-gnu/drivers/media/usb/au0828/au0828-input.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/usb/au0828/au0828-input.c	2017-12-20 04:05:01.000000000 -0500
@@ -130,7 +130,7 @@ static int au0828_get_key_au8522(struct
 	bool first = true;
 
 	/* do nothing if device is disconnected */
-	if (ir->dev->dev_state == DEV_DISCONNECTED)
+	if (test_bit(DEV_DISCONNECTED, &ir->dev->dev_state))
 		return 0;
 
 	/* Check IR int */
@@ -260,7 +260,7 @@ static void au0828_rc_stop(struct rc_dev
 	cancel_delayed_work_sync(&ir->work);
 
 	/* do nothing if device is disconnected */
-	if (ir->dev->dev_state != DEV_DISCONNECTED) {
+	if (!test_bit(DEV_DISCONNECTED, &ir->dev->dev_state)) {
 		/* Disable IR */
 		au8522_rc_clear(ir, 0xe0, 1 << 4);
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/usb/au0828/au0828-video.c linux-libre-4.4.107-gnu/drivers/media/usb/au0828/au0828-video.c
--- linux-libre-4.4-gnu/drivers/media/usb/au0828/au0828-video.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/usb/au0828/au0828-video.c	2017-12-20 04:05:01.000000000 -0500
@@ -104,14 +104,13 @@ static inline void print_err_status(stru
 
 static int check_dev(struct au0828_dev *dev)
 {
-	if (dev->dev_state & DEV_DISCONNECTED) {
+	if (test_bit(DEV_DISCONNECTED, &dev->dev_state)) {
 		pr_info("v4l2 ioctl: device not present\n");
 		return -ENODEV;
 	}
 
-	if (dev->dev_state & DEV_MISCONFIGURED) {
-		pr_info("v4l2 ioctl: device is misconfigured; "
-		       "close and open it again\n");
+	if (test_bit(DEV_MISCONFIGURED, &dev->dev_state)) {
+		pr_info("v4l2 ioctl: device is misconfigured; close and open it again\n");
 		return -EIO;
 	}
 	return 0;
@@ -519,8 +518,8 @@ static inline int au0828_isoc_copy(struc
 	if (!dev)
 		return 0;
 
-	if ((dev->dev_state & DEV_DISCONNECTED) ||
-	    (dev->dev_state & DEV_MISCONFIGURED))
+	if (test_bit(DEV_DISCONNECTED, &dev->dev_state) ||
+	    test_bit(DEV_MISCONFIGURED, &dev->dev_state))
 		return 0;
 
 	if (urb->status < 0) {
@@ -766,10 +765,10 @@ static int au0828_stream_interrupt(struc
 	int ret = 0;
 
 	dev->stream_state = STREAM_INTERRUPT;
-	if (dev->dev_state == DEV_DISCONNECTED)
+	if (test_bit(DEV_DISCONNECTED, &dev->dev_state))
 		return -ENODEV;
 	else if (ret) {
-		dev->dev_state = DEV_MISCONFIGURED;
+		set_bit(DEV_MISCONFIGURED, &dev->dev_state);
 		dprintk(1, "%s device is misconfigured!\n", __func__);
 		return ret;
 	}
@@ -958,7 +957,7 @@ static int au0828_v4l2_open(struct file
 	int ret;
 
 	dprintk(1,
-		"%s called std_set %d dev_state %d stream users %d users %d\n",
+		"%s called std_set %d dev_state %ld stream users %d users %d\n",
 		__func__, dev->std_set_in_tuner_core, dev->dev_state,
 		dev->streaming_users, dev->users);
 
@@ -977,7 +976,7 @@ static int au0828_v4l2_open(struct file
 		au0828_analog_stream_enable(dev);
 		au0828_analog_stream_reset(dev);
 		dev->stream_state = STREAM_OFF;
-		dev->dev_state |= DEV_INITIALIZED;
+		set_bit(DEV_INITIALIZED, &dev->dev_state);
 	}
 	dev->users++;
 	mutex_unlock(&dev->lock);
@@ -991,7 +990,7 @@ static int au0828_v4l2_close(struct file
 	struct video_device *vdev = video_devdata(filp);
 
 	dprintk(1,
-		"%s called std_set %d dev_state %d stream users %d users %d\n",
+		"%s called std_set %d dev_state %ld stream users %d users %d\n",
 		__func__, dev->std_set_in_tuner_core, dev->dev_state,
 		dev->streaming_users, dev->users);
 
@@ -1007,7 +1006,7 @@ static int au0828_v4l2_close(struct file
 		del_timer_sync(&dev->vbi_timeout);
 	}
 
-	if (dev->dev_state == DEV_DISCONNECTED)
+	if (test_bit(DEV_DISCONNECTED, &dev->dev_state))
 		goto end;
 
 	if (dev->users == 1) {
@@ -1036,7 +1035,7 @@ static void au0828_init_tuner(struct au0
 		.type = V4L2_TUNER_ANALOG_TV,
 	};
 
-	dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
+	dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
 		dev->std_set_in_tuner_core, dev->dev_state);
 
 	if (dev->std_set_in_tuner_core)
@@ -1108,7 +1107,7 @@ static int vidioc_querycap(struct file *
 	struct video_device *vdev = video_devdata(file);
 	struct au0828_dev *dev = video_drvdata(file);
 
-	dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
+	dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
 		dev->std_set_in_tuner_core, dev->dev_state);
 
 	strlcpy(cap->driver, "au0828", sizeof(cap->driver));
@@ -1151,7 +1150,7 @@ static int vidioc_g_fmt_vid_cap(struct f
 {
 	struct au0828_dev *dev = video_drvdata(file);
 
-	dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
+	dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
 		dev->std_set_in_tuner_core, dev->dev_state);
 
 	f->fmt.pix.width = dev->width;
@@ -1170,7 +1169,7 @@ static int vidioc_try_fmt_vid_cap(struct
 {
 	struct au0828_dev *dev = video_drvdata(file);
 
-	dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
+	dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
 		dev->std_set_in_tuner_core, dev->dev_state);
 
 	return au0828_set_format(dev, VIDIOC_TRY_FMT, f);
@@ -1182,7 +1181,7 @@ static int vidioc_s_fmt_vid_cap(struct f
 	struct au0828_dev *dev = video_drvdata(file);
 	int rc;
 
-	dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
+	dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
 		dev->std_set_in_tuner_core, dev->dev_state);
 
 	rc = check_dev(dev);
@@ -1204,7 +1203,7 @@ static int vidioc_s_std(struct file *fil
 {
 	struct au0828_dev *dev = video_drvdata(file);
 
-	dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
+	dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
 		dev->std_set_in_tuner_core, dev->dev_state);
 
 	if (norm == dev->std)
@@ -1236,7 +1235,7 @@ static int vidioc_g_std(struct file *fil
 {
 	struct au0828_dev *dev = video_drvdata(file);
 
-	dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
+	dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
 		dev->std_set_in_tuner_core, dev->dev_state);
 
 	*norm = dev->std;
@@ -1259,7 +1258,7 @@ static int vidioc_enum_input(struct file
 		[AU0828_VMUX_DEBUG] = "tv debug"
 	};
 
-	dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
+	dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
 		dev->std_set_in_tuner_core, dev->dev_state);
 
 	tmp = input->index;
@@ -1289,7 +1288,7 @@ static int vidioc_g_input(struct file *f
 {
 	struct au0828_dev *dev = video_drvdata(file);
 
-	dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
+	dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
 		dev->std_set_in_tuner_core, dev->dev_state);
 
 	*i = dev->ctrl_input;
@@ -1300,7 +1299,7 @@ static void au0828_s_input(struct au0828
 {
 	int i;
 
-	dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
+	dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
 		dev->std_set_in_tuner_core, dev->dev_state);
 
 	switch (AUVI_INPUT(index).type) {
@@ -1385,7 +1384,7 @@ static int vidioc_g_audio(struct file *f
 {
 	struct au0828_dev *dev = video_drvdata(file);
 
-	dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
+	dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
 		dev->std_set_in_tuner_core, dev->dev_state);
 
 	a->index = dev->ctrl_ainput;
@@ -1405,7 +1404,7 @@ static int vidioc_s_audio(struct file *f
 	if (a->index != dev->ctrl_ainput)
 		return -EINVAL;
 
-	dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
+	dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
 		dev->std_set_in_tuner_core, dev->dev_state);
 	return 0;
 }
@@ -1417,7 +1416,7 @@ static int vidioc_g_tuner(struct file *f
 	if (t->index != 0)
 		return -EINVAL;
 
-	dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
+	dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
 		dev->std_set_in_tuner_core, dev->dev_state);
 
 	strcpy(t->name, "Auvitek tuner");
@@ -1437,7 +1436,7 @@ static int vidioc_s_tuner(struct file *f
 	if (t->index != 0)
 		return -EINVAL;
 
-	dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
+	dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
 		dev->std_set_in_tuner_core, dev->dev_state);
 
 	au0828_init_tuner(dev);
@@ -1459,7 +1458,7 @@ static int vidioc_g_frequency(struct fil
 
 	if (freq->tuner != 0)
 		return -EINVAL;
-	dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
+	dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
 		dev->std_set_in_tuner_core, dev->dev_state);
 	freq->frequency = dev->ctrl_freq;
 	return 0;
@@ -1474,7 +1473,7 @@ static int vidioc_s_frequency(struct fil
 	if (freq->tuner != 0)
 		return -EINVAL;
 
-	dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
+	dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
 		dev->std_set_in_tuner_core, dev->dev_state);
 
 	au0828_init_tuner(dev);
@@ -1500,7 +1499,7 @@ static int vidioc_g_fmt_vbi_cap(struct f
 {
 	struct au0828_dev *dev = video_drvdata(file);
 
-	dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
+	dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
 		dev->std_set_in_tuner_core, dev->dev_state);
 
 	format->fmt.vbi.samples_per_line = dev->vbi_width;
@@ -1526,7 +1525,7 @@ static int vidioc_cropcap(struct file *f
 	if (cc->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
 		return -EINVAL;
 
-	dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
+	dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
 		dev->std_set_in_tuner_core, dev->dev_state);
 
 	cc->bounds.left = 0;
@@ -1548,7 +1547,7 @@ static int vidioc_g_register(struct file
 {
 	struct au0828_dev *dev = video_drvdata(file);
 
-	dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
+	dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
 		dev->std_set_in_tuner_core, dev->dev_state);
 
 	reg->val = au0828_read(dev, reg->reg);
@@ -1561,7 +1560,7 @@ static int vidioc_s_register(struct file
 {
 	struct au0828_dev *dev = video_drvdata(file);
 
-	dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
+	dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
 		dev->std_set_in_tuner_core, dev->dev_state);
 
 	return au0828_writereg(dev, reg->reg, reg->val);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/usb/cx231xx/cx231xx-audio.c linux-libre-4.4.107-gnu/drivers/media/usb/cx231xx/cx231xx-audio.c
--- linux-libre-4.4-gnu/drivers/media/usb/cx231xx/cx231xx-audio.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/usb/cx231xx/cx231xx-audio.c	2017-12-20 04:05:01.000000000 -0500
@@ -671,10 +671,8 @@ static int cx231xx_audio_init(struct cx2
 
 	spin_lock_init(&adev->slock);
 	err = snd_pcm_new(card, "Cx231xx Audio", 0, 0, 1, &pcm);
-	if (err < 0) {
-		snd_card_free(card);
-		return err;
-	}
+	if (err < 0)
+		goto err_free_card;
 
 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,
 			&snd_cx231xx_pcm_capture);
@@ -688,10 +686,9 @@ static int cx231xx_audio_init(struct cx2
 	INIT_WORK(&dev->wq_trigger, audio_trigger);
 
 	err = snd_card_register(card);
-	if (err < 0) {
-		snd_card_free(card);
-		return err;
-	}
+	if (err < 0)
+		goto err_free_card;
+
 	adev->sndcard = card;
 	adev->udev = dev->udev;
 
@@ -701,6 +698,11 @@ static int cx231xx_audio_init(struct cx2
 					    hs_config_info[0].interface_info.
 					    audio_index + 1];
 
+	if (uif->altsetting[0].desc.bNumEndpoints < isoc_pipe + 1) {
+		err = -ENODEV;
+		goto err_free_card;
+	}
+
 	adev->end_point_addr =
 	    uif->altsetting[0].endpoint[isoc_pipe].desc.
 			bEndpointAddress;
@@ -710,13 +712,20 @@ static int cx231xx_audio_init(struct cx2
 		"audio EndPoint Addr 0x%x, Alternate settings: %i\n",
 		adev->end_point_addr, adev->num_alt);
 	adev->alt_max_pkt_size = kmalloc(32 * adev->num_alt, GFP_KERNEL);
-
-	if (adev->alt_max_pkt_size == NULL)
-		return -ENOMEM;
+	if (!adev->alt_max_pkt_size) {
+		err = -ENOMEM;
+		goto err_free_card;
+	}
 
 	for (i = 0; i < adev->num_alt; i++) {
-		u16 tmp =
-		    le16_to_cpu(uif->altsetting[i].endpoint[isoc_pipe].desc.
+		u16 tmp;
+
+		if (uif->altsetting[i].desc.bNumEndpoints < isoc_pipe + 1) {
+			err = -ENODEV;
+			goto err_free_pkt_size;
+		}
+
+		tmp = le16_to_cpu(uif->altsetting[i].endpoint[isoc_pipe].desc.
 				wMaxPacketSize);
 		adev->alt_max_pkt_size[i] =
 		    (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1);
@@ -726,6 +735,13 @@ static int cx231xx_audio_init(struct cx2
 	}
 
 	return 0;
+
+err_free_pkt_size:
+	kfree(adev->alt_max_pkt_size);
+err_free_card:
+	snd_card_free(card);
+
+	return err;
 }
 
 static int cx231xx_audio_fini(struct cx231xx *dev)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/usb/cx231xx/cx231xx-avcore.c linux-libre-4.4.107-gnu/drivers/media/usb/cx231xx/cx231xx-avcore.c
--- linux-libre-4.4-gnu/drivers/media/usb/cx231xx/cx231xx-avcore.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/usb/cx231xx/cx231xx-avcore.c	2017-12-20 04:05:01.000000000 -0500
@@ -1264,7 +1264,10 @@ int cx231xx_set_agc_analog_digital_mux_s
 				   dev->board.agc_analog_digital_select_gpio,
 				   analog_or_digital);
 
-	return status;
+	if (status < 0)
+		return status;
+
+	return 0;
 }
 
 int cx231xx_enable_i2c_port_3(struct cx231xx *dev, bool is_port_3)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/usb/cx231xx/cx231xx-cards.c linux-libre-4.4.107-gnu/drivers/media/usb/cx231xx/cx231xx-cards.c
--- linux-libre-4.4-gnu/drivers/media/usb/cx231xx/cx231xx-cards.c	2016-01-10 20:58:35.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/usb/cx231xx/cx231xx-cards.c	2017-12-20 11:14:06.000000000 -0500
@@ -486,7 +486,7 @@ struct cx231xx_board cx231xx_boards[] =
 		.output_mode = OUT_MODE_VIP11,
 		.demod_xfer_mode = 0,
 		.ctl_pin_status_mask = 0xFFFFFFC4,
-		.agc_analog_digital_select_gpio = 0x00,	/* According with PV cxPolaris.inf file */
+		.agc_analog_digital_select_gpio = 0x1c,
 		.tuner_sif_gpio = -1,
 		.tuner_scl_gpio = -1,
 		.tuner_sda_gpio = -1,
@@ -1447,6 +1447,9 @@ static int cx231xx_init_v4l2(struct cx23
 
 	uif = udev->actconfig->interface[idx];
 
+	if (uif->altsetting[0].desc.bNumEndpoints < isoc_pipe + 1)
+		return -ENODEV;
+
 	dev->video_mode.end_point_addr = uif->altsetting[0].endpoint[isoc_pipe].desc.bEndpointAddress;
 	dev->video_mode.num_alt = uif->num_altsetting;
 
@@ -1460,7 +1463,12 @@ static int cx231xx_init_v4l2(struct cx23
 		return -ENOMEM;
 
 	for (i = 0; i < dev->video_mode.num_alt; i++) {
-		u16 tmp = le16_to_cpu(uif->altsetting[i].endpoint[isoc_pipe].desc.wMaxPacketSize);
+		u16 tmp;
+
+		if (uif->altsetting[i].desc.bNumEndpoints < isoc_pipe + 1)
+			return -ENODEV;
+
+		tmp = le16_to_cpu(uif->altsetting[i].endpoint[isoc_pipe].desc.wMaxPacketSize);
 		dev->video_mode.alt_max_pkt_size[i] = (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1);
 		dev_dbg(dev->dev,
 			"Alternate setting %i, max size= %i\n", i,
@@ -1477,6 +1485,9 @@ static int cx231xx_init_v4l2(struct cx23
 	}
 	uif = udev->actconfig->interface[idx];
 
+	if (uif->altsetting[0].desc.bNumEndpoints < isoc_pipe + 1)
+		return -ENODEV;
+
 	dev->vbi_mode.end_point_addr =
 	    uif->altsetting[0].endpoint[isoc_pipe].desc.
 			bEndpointAddress;
@@ -1493,8 +1504,12 @@ static int cx231xx_init_v4l2(struct cx23
 		return -ENOMEM;
 
 	for (i = 0; i < dev->vbi_mode.num_alt; i++) {
-		u16 tmp =
-		    le16_to_cpu(uif->altsetting[i].endpoint[isoc_pipe].
+		u16 tmp;
+
+		if (uif->altsetting[i].desc.bNumEndpoints < isoc_pipe + 1)
+			return -ENODEV;
+
+		tmp = le16_to_cpu(uif->altsetting[i].endpoint[isoc_pipe].
 				desc.wMaxPacketSize);
 		dev->vbi_mode.alt_max_pkt_size[i] =
 		    (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1);
@@ -1514,6 +1529,9 @@ static int cx231xx_init_v4l2(struct cx23
 	}
 	uif = udev->actconfig->interface[idx];
 
+	if (uif->altsetting[0].desc.bNumEndpoints < isoc_pipe + 1)
+		return -ENODEV;
+
 	dev->sliced_cc_mode.end_point_addr =
 	    uif->altsetting[0].endpoint[isoc_pipe].desc.
 			bEndpointAddress;
@@ -1528,7 +1546,12 @@ static int cx231xx_init_v4l2(struct cx23
 		return -ENOMEM;
 
 	for (i = 0; i < dev->sliced_cc_mode.num_alt; i++) {
-		u16 tmp = le16_to_cpu(uif->altsetting[i].endpoint[isoc_pipe].
+		u16 tmp;
+
+		if (uif->altsetting[i].desc.bNumEndpoints < isoc_pipe + 1)
+			return -ENODEV;
+
+		tmp = le16_to_cpu(uif->altsetting[i].endpoint[isoc_pipe].
 				desc.wMaxPacketSize);
 		dev->sliced_cc_mode.alt_max_pkt_size[i] =
 		    (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1);
@@ -1649,7 +1672,7 @@ static int cx231xx_usb_probe(struct usb_
 	nr = dev->devno;
 
 	assoc_desc = udev->actconfig->intf_assoc[0];
-	if (assoc_desc->bFirstInterface != ifnum) {
+	if (!assoc_desc || assoc_desc->bFirstInterface != ifnum) {
 		dev_err(d, "Not found matching IAD interface\n");
 		retval = -ENODEV;
 		goto err_if;
@@ -1693,6 +1716,11 @@ static int cx231xx_usb_probe(struct usb_
 		}
 		uif = udev->actconfig->interface[idx];
 
+		if (uif->altsetting[0].desc.bNumEndpoints < isoc_pipe + 1) {
+			retval = -ENODEV;
+			goto err_video_alt;
+		}
+
 		dev->ts1_mode.end_point_addr =
 		    uif->altsetting[0].endpoint[isoc_pipe].
 				desc.bEndpointAddress;
@@ -1710,7 +1738,14 @@ static int cx231xx_usb_probe(struct usb_
 		}
 
 		for (i = 0; i < dev->ts1_mode.num_alt; i++) {
-			u16 tmp = le16_to_cpu(uif->altsetting[i].
+			u16 tmp;
+
+			if (uif->altsetting[i].desc.bNumEndpoints < isoc_pipe + 1) {
+				retval = -ENODEV;
+				goto err_video_alt;
+			}
+
+			tmp = le16_to_cpu(uif->altsetting[i].
 						endpoint[isoc_pipe].desc.
 						wMaxPacketSize);
 			dev->ts1_mode.alt_max_pkt_size[i] =
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/usb/cx231xx/cx231xx-core.c linux-libre-4.4.107-gnu/drivers/media/usb/cx231xx/cx231xx-core.c
--- linux-libre-4.4-gnu/drivers/media/usb/cx231xx/cx231xx-core.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/usb/cx231xx/cx231xx-core.c	2017-12-20 04:05:01.000000000 -0500
@@ -356,7 +356,12 @@ int cx231xx_send_vendor_cmd(struct cx231
 	 */
 	if ((ven_req->wLength > 4) && ((ven_req->bRequest == 0x4) ||
 					(ven_req->bRequest == 0x5) ||
-					(ven_req->bRequest == 0x6))) {
+					(ven_req->bRequest == 0x6) ||
+
+					/* Internal Master 3 Bus can send
+					 * and receive only 4 bytes per time
+					 */
+					(ven_req->bRequest == 0x2))) {
 		unsend_size = 0;
 		pdata = ven_req->pBuff;
 
@@ -712,6 +717,7 @@ int cx231xx_set_mode(struct cx231xx *dev
 			break;
 		case CX231XX_BOARD_CNXT_RDE_253S:
 		case CX231XX_BOARD_CNXT_RDU_253S:
+		case CX231XX_BOARD_PV_PLAYTV_USB_HYBRID:
 			errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 1);
 			break;
 		case CX231XX_BOARD_HAUPPAUGE_EXETER:
@@ -738,7 +744,7 @@ int cx231xx_set_mode(struct cx231xx *dev
 		case CX231XX_BOARD_PV_PLAYTV_USB_HYBRID:
 		case CX231XX_BOARD_HAUPPAUGE_USB2_FM_PAL:
 		case CX231XX_BOARD_HAUPPAUGE_USB2_FM_NTSC:
-		errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 0);
+			errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 0);
 			break;
 		default:
 			break;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/usb/dvb-usb/dib0700_core.c linux-libre-4.4.107-gnu/drivers/media/usb/dvb-usb/dib0700_core.c
--- linux-libre-4.4-gnu/drivers/media/usb/dvb-usb/dib0700_core.c	2016-01-10 20:59:13.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/usb/dvb-usb/dib0700_core.c	2017-12-20 11:15:19.000000000 -0500
@@ -677,7 +677,7 @@ static void dib0700_rc_urb_completion(st
 	struct dvb_usb_device *d = purb->context;
 	struct dib0700_rc_response *poll_reply;
 	enum rc_type protocol;
-	u32 uninitialized_var(keycode);
+	u32 keycode;
 	u8 toggle;
 
 	deb_info("%s()\n", __func__);
@@ -719,7 +719,8 @@ static void dib0700_rc_urb_completion(st
 		    poll_reply->nec.data       == 0x00 &&
 		    poll_reply->nec.not_data   == 0xff) {
 			poll_reply->data_state = 2;
-			break;
+			rc_repeat(d->rc_dev);
+			goto resubmit;
 		}
 
 		if ((poll_reply->nec.data ^ poll_reply->nec.not_data) != 0xff) {
@@ -782,6 +783,9 @@ int dib0700_rc_setup(struct dvb_usb_devi
 
 	/* Starting in firmware 1.20, the RC info is provided on a bulk pipe */
 
+	if (intf->altsetting[0].desc.bNumEndpoints < rc_ep + 1)
+		return -ENODEV;
+
 	purb = usb_alloc_urb(0, GFP_KERNEL);
 	if (purb == NULL) {
 		err("rc usb alloc urb failed");
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/usb/dvb-usb/dib0700_devices.c linux-libre-4.4.107-gnu/drivers/media/usb/dvb-usb/dib0700_devices.c
--- linux-libre-4.4-gnu/drivers/media/usb/dvb-usb/dib0700_devices.c	2016-01-10 20:59:10.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/usb/dvb-usb/dib0700_devices.c	2017-12-20 11:15:15.000000000 -0500
@@ -292,7 +292,7 @@ static int stk7700P2_frontend_attach(str
 					     stk7700d_dib7000p_mt2266_config)
 		    != 0) {
 			err("%s: state->dib7000p_ops.i2c_enumeration failed.  Cannot continue\n", __func__);
-			dvb_detach(&state->dib7000p_ops);
+			dvb_detach(state->dib7000p_ops.set_wbd_ref);
 			return -ENODEV;
 		}
 	}
@@ -326,7 +326,7 @@ static int stk7700d_frontend_attach(stru
 					     stk7700d_dib7000p_mt2266_config)
 		    != 0) {
 			err("%s: state->dib7000p_ops.i2c_enumeration failed.  Cannot continue\n", __func__);
-			dvb_detach(&state->dib7000p_ops);
+			dvb_detach(state->dib7000p_ops.set_wbd_ref);
 			return -ENODEV;
 		}
 	}
@@ -479,7 +479,7 @@ static int stk7700ph_frontend_attach(str
 				     &stk7700ph_dib7700_xc3028_config) != 0) {
 		err("%s: state->dib7000p_ops.i2c_enumeration failed.  Cannot continue\n",
 		    __func__);
-		dvb_detach(&state->dib7000p_ops);
+		dvb_detach(state->dib7000p_ops.set_wbd_ref);
 		return -ENODEV;
 	}
 
@@ -1010,7 +1010,7 @@ static int stk7070p_frontend_attach(stru
 				     &dib7070p_dib7000p_config) != 0) {
 		err("%s: state->dib7000p_ops.i2c_enumeration failed.  Cannot continue\n",
 		    __func__);
-		dvb_detach(&state->dib7000p_ops);
+		dvb_detach(state->dib7000p_ops.set_wbd_ref);
 		return -ENODEV;
 	}
 
@@ -1068,7 +1068,7 @@ static int stk7770p_frontend_attach(stru
 				     &dib7770p_dib7000p_config) != 0) {
 		err("%s: state->dib7000p_ops.i2c_enumeration failed.  Cannot continue\n",
 		    __func__);
-		dvb_detach(&state->dib7000p_ops);
+		dvb_detach(state->dib7000p_ops.set_wbd_ref);
 		return -ENODEV;
 	}
 
@@ -3036,7 +3036,7 @@ static int nim7090_frontend_attach(struc
 
 	if (state->dib7000p_ops.i2c_enumeration(&adap->dev->i2c_adap, 1, 0x10, &nim7090_dib7000p_config) != 0) {
 		err("%s: state->dib7000p_ops.i2c_enumeration failed.  Cannot continue\n", __func__);
-		dvb_detach(&state->dib7000p_ops);
+		dvb_detach(state->dib7000p_ops.set_wbd_ref);
 		return -ENODEV;
 	}
 	adap->fe_adap[0].fe = state->dib7000p_ops.init(&adap->dev->i2c_adap, 0x80, &nim7090_dib7000p_config);
@@ -3089,7 +3089,7 @@ static int tfe7090pvr_frontend0_attach(s
 	/* initialize IC 0 */
 	if (state->dib7000p_ops.i2c_enumeration(&adap->dev->i2c_adap, 1, 0x20, &tfe7090pvr_dib7000p_config[0]) != 0) {
 		err("%s: state->dib7000p_ops.i2c_enumeration failed.  Cannot continue\n", __func__);
-		dvb_detach(&state->dib7000p_ops);
+		dvb_detach(state->dib7000p_ops.set_wbd_ref);
 		return -ENODEV;
 	}
 
@@ -3119,7 +3119,7 @@ static int tfe7090pvr_frontend1_attach(s
 	i2c = state->dib7000p_ops.get_i2c_master(adap->dev->adapter[0].fe_adap[0].fe, DIBX000_I2C_INTERFACE_GPIO_6_7, 1);
 	if (state->dib7000p_ops.i2c_enumeration(i2c, 1, 0x10, &tfe7090pvr_dib7000p_config[1]) != 0) {
 		err("%s: state->dib7000p_ops.i2c_enumeration failed.  Cannot continue\n", __func__);
-		dvb_detach(&state->dib7000p_ops);
+		dvb_detach(state->dib7000p_ops.set_wbd_ref);
 		return -ENODEV;
 	}
 
@@ -3194,7 +3194,7 @@ static int tfe7790p_frontend_attach(stru
 				1, 0x10, &tfe7790p_dib7000p_config) != 0) {
 		err("%s: state->dib7000p_ops.i2c_enumeration failed.  Cannot continue\n",
 				__func__);
-		dvb_detach(&state->dib7000p_ops);
+		dvb_detach(state->dib7000p_ops.set_wbd_ref);
 		return -ENODEV;
 	}
 	adap->fe_adap[0].fe = state->dib7000p_ops.init(&adap->dev->i2c_adap,
@@ -3289,7 +3289,7 @@ static int stk7070pd_frontend_attach0(st
 				     stk7070pd_dib7000p_config) != 0) {
 		err("%s: state->dib7000p_ops.i2c_enumeration failed.  Cannot continue\n",
 		    __func__);
-		dvb_detach(&state->dib7000p_ops);
+		dvb_detach(state->dib7000p_ops.set_wbd_ref);
 		return -ENODEV;
 	}
 
@@ -3364,7 +3364,7 @@ static int novatd_frontend_attach(struct
 					     stk7070pd_dib7000p_config) != 0) {
 			err("%s: state->dib7000p_ops.i2c_enumeration failed.  Cannot continue\n",
 			    __func__);
-			dvb_detach(&state->dib7000p_ops);
+			dvb_detach(state->dib7000p_ops.set_wbd_ref);
 			return -ENODEV;
 		}
 	}
@@ -3600,7 +3600,7 @@ static int pctv340e_frontend_attach(stru
 
 	if (state->dib7000p_ops.dib7000pc_detection(&adap->dev->i2c_adap) == 0) {
 		/* Demodulator not found for some reason? */
-		dvb_detach(&state->dib7000p_ops);
+		dvb_detach(state->dib7000p_ops.set_wbd_ref);
 		return -ENODEV;
 	}
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/usb/dvb-usb/dibusb-common.c linux-libre-4.4.107-gnu/drivers/media/usb/dvb-usb/dibusb-common.c
--- linux-libre-4.4-gnu/drivers/media/usb/dvb-usb/dibusb-common.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/usb/dvb-usb/dibusb-common.c	2017-12-20 04:05:01.000000000 -0500
@@ -179,8 +179,20 @@ EXPORT_SYMBOL(dibusb_i2c_algo);
 
 int dibusb_read_eeprom_byte(struct dvb_usb_device *d, u8 offs, u8 *val)
 {
-	u8 wbuf[1] = { offs };
-	return dibusb_i2c_msg(d, 0x50, wbuf, 1, val, 1);
+	u8 *buf;
+	int rc;
+
+	buf = kmalloc(2, GFP_KERNEL);
+	if (!buf)
+		return -ENOMEM;
+
+	buf[0] = offs;
+
+	rc = dibusb_i2c_msg(d, 0x50, &buf[0], 1, &buf[1], 1);
+	*val = buf[1];
+	kfree(buf);
+
+	return rc;
 }
 EXPORT_SYMBOL(dibusb_read_eeprom_byte);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/usb/dvb-usb/dvb-usb-firmware.c linux-libre-4.4.107-gnu/drivers/media/usb/dvb-usb/dvb-usb-firmware.c
--- linux-libre-4.4-gnu/drivers/media/usb/dvb-usb/dvb-usb-firmware.c	2016-01-10 20:58:38.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/usb/dvb-usb/dvb-usb-firmware.c	2017-12-20 11:14:14.000000000 -0500
@@ -35,42 +35,51 @@ static int usb_cypress_writemem(struct u
 
 int usb_cypress_load_firmware(struct usb_device *udev, const struct firmware *fw, int type)
 {
-	struct hexline hx;
-	u8 reset;
-	int ret,pos=0;
+	struct hexline *hx;
+	u8 *buf;
+	int ret, pos = 0;
+	u16 cpu_cs_register = cypress[type].cpu_cs_register;
+
+	buf = kmalloc(sizeof(*hx), GFP_KERNEL);
+	if (!buf)
+		return -ENOMEM;
+	hx = (struct hexline *)buf;
 
 	/* stop the CPU */
-	reset = 1;
-	if ((ret = usb_cypress_writemem(udev,cypress[type].cpu_cs_register,&reset,1)) != 1)
+	buf[0] = 1;
+	if (usb_cypress_writemem(udev, cpu_cs_register, buf, 1) != 1)
 		err("could not stop the USB controller CPU.");
 
-	while ((ret = dvb_usb_get_hexline(fw,&hx,&pos)) > 0) {
-		deb_fw("writing to address 0x%04x (buffer: 0x%02x %02x)\n",hx.addr,hx.len,hx.chk);
-		ret = usb_cypress_writemem(udev,hx.addr,hx.data,hx.len);
+	while ((ret = dvb_usb_get_hexline(fw, hx, &pos)) > 0) {
+		deb_fw("writing to address 0x%04x (buffer: 0x%02x %02x)\n", hx->addr, hx->len, hx->chk);
+		ret = usb_cypress_writemem(udev, hx->addr, hx->data, hx->len);
 
-		if (ret != hx.len) {
+		if (ret != hx->len) {
 			err("error while transferring firmware "
 				"(transferred size: %d, block size: %d)",
-				ret,hx.len);
+				ret, hx->len);
 			ret = -EINVAL;
 			break;
 		}
 	}
 	if (ret < 0) {
 		err("firmware download failed at %d with %d",pos,ret);
+		kfree(buf);
 		return ret;
 	}
 
 	if (ret == 0) {
 		/* restart the CPU */
-		reset = 0;
-		if (ret || usb_cypress_writemem(udev,cypress[type].cpu_cs_register,&reset,1) != 1) {
+		buf[0] = 0;
+		if (usb_cypress_writemem(udev, cpu_cs_register, buf, 1) != 1) {
 			err("could not restart the USB controller CPU.");
 			ret = -EINVAL;
 		}
 	} else
 		ret = -EIO;
 
+	kfree(buf);
+
 	return ret;
 }
 EXPORT_SYMBOL(usb_cypress_load_firmware);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/usb/dvb-usb/ttusb2.c linux-libre-4.4.107-gnu/drivers/media/usb/dvb-usb/ttusb2.c
--- linux-libre-4.4-gnu/drivers/media/usb/dvb-usb/ttusb2.c	2016-01-10 20:59:48.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/usb/dvb-usb/ttusb2.c	2017-12-20 11:16:31.000000000 -0500
@@ -78,6 +78,9 @@ static int ttusb2_msg(struct dvb_usb_dev
 	u8 *s, *r = NULL;
 	int ret = 0;
 
+	if (4 + rlen > 64)
+		return -EIO;
+
 	s = kzalloc(wlen+4, GFP_KERNEL);
 	if (!s)
 		return -ENOMEM;
@@ -381,6 +384,22 @@ static int ttusb2_i2c_xfer(struct i2c_ad
 		write_read = i+1 < num && (msg[i+1].flags & I2C_M_RD);
 		read = msg[i].flags & I2C_M_RD;
 
+		if (3 + msg[i].len > sizeof(obuf)) {
+			err("i2c wr len=%d too high", msg[i].len);
+			break;
+		}
+		if (write_read) {
+			if (3 + msg[i+1].len > sizeof(ibuf)) {
+				err("i2c rd len=%d too high", msg[i+1].len);
+				break;
+			}
+		} else if (read) {
+			if (3 + msg[i].len > sizeof(ibuf)) {
+				err("i2c rd len=%d too high", msg[i].len);
+				break;
+			}
+		}
+
 		obuf[0] = (msg[i].addr << 1) | (write_read | read);
 		if (read)
 			obuf[1] = 0;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/usb/dvb-usb-v2/dvb_usb_core.c linux-libre-4.4.107-gnu/drivers/media/usb/dvb-usb-v2/dvb_usb_core.c
--- linux-libre-4.4-gnu/drivers/media/usb/dvb-usb-v2/dvb_usb_core.c	2016-01-10 20:58:38.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/usb/dvb-usb-v2/dvb_usb_core.c	2017-12-20 11:14:14.000000000 -0500
@@ -1010,8 +1010,8 @@ EXPORT_SYMBOL(dvb_usbv2_probe);
 void dvb_usbv2_disconnect(struct usb_interface *intf)
 {
 	struct dvb_usb_device *d = usb_get_intfdata(intf);
-	const char *name = d->name;
-	struct device dev = d->udev->dev;
+	const char *devname = kstrdup(dev_name(&d->udev->dev), GFP_KERNEL);
+	const char *drvname = d->name;
 
 	dev_dbg(&d->udev->dev, "%s: bInterfaceNumber=%d\n", __func__,
 			intf->cur_altsetting->desc.bInterfaceNumber);
@@ -1021,8 +1021,9 @@ void dvb_usbv2_disconnect(struct usb_int
 
 	dvb_usbv2_exit(d);
 
-	dev_info(&dev, "%s: '%s' successfully deinitialized and disconnected\n",
-			KBUILD_MODNAME, name);
+	pr_info("%s: '%s:%s' successfully deinitialized and disconnected\n",
+		KBUILD_MODNAME, drvname, devname);
+	kfree(devname);
 }
 EXPORT_SYMBOL(dvb_usbv2_disconnect);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/usb/em28xx/em28xx-i2c.c linux-libre-4.4.107-gnu/drivers/media/usb/em28xx/em28xx-i2c.c
--- linux-libre-4.4-gnu/drivers/media/usb/em28xx/em28xx-i2c.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/usb/em28xx/em28xx-i2c.c	2017-12-20 04:05:01.000000000 -0500
@@ -507,9 +507,8 @@ static int em28xx_i2c_xfer(struct i2c_ad
 	if (dev->disconnected)
 		return -ENODEV;
 
-	rc = rt_mutex_trylock(&dev->i2c_bus_lock);
-	if (rc < 0)
-		return rc;
+	if (!rt_mutex_trylock(&dev->i2c_bus_lock))
+		return -EAGAIN;
 
 	/* Switch I2C bus if needed */
 	if (bus != dev->cur_i2c_bus &&
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/usb/gspca/cpia1.c linux-libre-4.4.107-gnu/drivers/media/usb/gspca/cpia1.c
--- linux-libre-4.4-gnu/drivers/media/usb/gspca/cpia1.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/usb/gspca/cpia1.c	2017-12-20 04:05:01.000000000 -0500
@@ -1624,7 +1624,7 @@ static int sd_start(struct gspca_dev *gs
 
 static void sd_stopN(struct gspca_dev *gspca_dev)
 {
-	struct sd *sd = (struct sd *) gspca_dev;
+	struct sd *sd __maybe_unused = (struct sd *) gspca_dev;
 
 	command_pause(gspca_dev);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/usb/gspca/konica.c linux-libre-4.4.107-gnu/drivers/media/usb/gspca/konica.c
--- linux-libre-4.4-gnu/drivers/media/usb/gspca/konica.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/usb/gspca/konica.c	2017-12-20 04:05:01.000000000 -0500
@@ -188,6 +188,9 @@ static int sd_start(struct gspca_dev *gs
 		return -EIO;
 	}
 
+	if (alt->desc.bNumEndpoints < 2)
+		return -ENODEV;
+
 	packet_size = le16_to_cpu(alt->endpoint[0].desc.wMaxPacketSize);
 
 	n = gspca_dev->cam.cam_mode[gspca_dev->curr_mode].priv;
@@ -243,7 +246,7 @@ static int sd_start(struct gspca_dev *gs
 
 static void sd_stopN(struct gspca_dev *gspca_dev)
 {
-	struct sd *sd = (struct sd *) gspca_dev;
+	struct sd *sd __maybe_unused = (struct sd *) gspca_dev;
 
 	konica_stream_off(gspca_dev);
 #if IS_ENABLED(CONFIG_INPUT)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/usb/gspca/ov534.c linux-libre-4.4.107-gnu/drivers/media/usb/gspca/ov534.c
--- linux-libre-4.4-gnu/drivers/media/usb/gspca/ov534.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/usb/gspca/ov534.c	2017-12-20 04:05:01.000000000 -0500
@@ -1491,8 +1491,13 @@ static void sd_set_streamparm(struct gsp
 	struct v4l2_fract *tpf = &cp->timeperframe;
 	struct sd *sd = (struct sd *) gspca_dev;
 
-	/* Set requested framerate */
-	sd->frame_rate = tpf->denominator / tpf->numerator;
+	if (tpf->numerator == 0 || tpf->denominator == 0)
+		/* Set default framerate */
+		sd->frame_rate = 30;
+	else
+		/* Set requested framerate */
+		sd->frame_rate = tpf->denominator / tpf->numerator;
+
 	if (gspca_dev->streaming)
 		set_frame_rate(gspca_dev);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/usb/gspca/t613.c linux-libre-4.4.107-gnu/drivers/media/usb/gspca/t613.c
--- linux-libre-4.4-gnu/drivers/media/usb/gspca/t613.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/usb/gspca/t613.c	2017-12-20 04:05:01.000000000 -0500
@@ -837,7 +837,7 @@ static void sd_pkt_scan(struct gspca_dev
 			u8 *data,			/* isoc packet */
 			int len)			/* iso packet length */
 {
-	struct sd *sd = (struct sd *) gspca_dev;
+	struct sd *sd __maybe_unused = (struct sd *) gspca_dev;
 	int pkt_type;
 
 	if (data[0] == 0x5a) {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/usb/gspca/topro.c linux-libre-4.4.107-gnu/drivers/media/usb/gspca/topro.c
--- linux-libre-4.4-gnu/drivers/media/usb/gspca/topro.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/usb/gspca/topro.c	2017-12-20 04:05:01.000000000 -0500
@@ -4802,7 +4802,11 @@ static void sd_set_streamparm(struct gsp
 	struct v4l2_fract *tpf = &cp->timeperframe;
 	int fr, i;
 
-	sd->framerate = tpf->denominator / tpf->numerator;
+	if (tpf->numerator == 0 || tpf->denominator == 0)
+		sd->framerate = 30;
+	else
+		sd->framerate = tpf->denominator / tpf->numerator;
+
 	if (gspca_dev->streaming)
 		setframerate(gspca_dev, v4l2_ctrl_g_ctrl(gspca_dev->exposure));
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/usb/pvrusb2/pvrusb2-eeprom.c linux-libre-4.4.107-gnu/drivers/media/usb/pvrusb2/pvrusb2-eeprom.c
--- linux-libre-4.4-gnu/drivers/media/usb/pvrusb2/pvrusb2-eeprom.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/usb/pvrusb2/pvrusb2-eeprom.c	2017-12-20 04:05:01.000000000 -0500
@@ -123,15 +123,10 @@ int pvr2_eeprom_analyze(struct pvr2_hdw
 	memset(&tvdata,0,sizeof(tvdata));
 
 	eeprom = pvr2_eeprom_fetch(hdw);
-	if (!eeprom) return -EINVAL;
+	if (!eeprom)
+		return -EINVAL;
 
-	{
-		struct i2c_client fake_client;
-		/* Newer version expects a useless client interface */
-		fake_client.addr = hdw->eeprom_addr;
-		fake_client.adapter = &hdw->i2c_adap;
-		tveeprom_hauppauge_analog(&fake_client,&tvdata,eeprom);
-	}
+	tveeprom_hauppauge_analog(NULL, &tvdata, eeprom);
 
 	trace_eeprom("eeprom assumed v4l tveeprom module");
 	trace_eeprom("eeprom direct call results:");
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/usb/pwc/pwc-if.c linux-libre-4.4.107-gnu/drivers/media/usb/pwc/pwc-if.c
--- linux-libre-4.4-gnu/drivers/media/usb/pwc/pwc-if.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/usb/pwc/pwc-if.c	2017-12-20 04:05:01.000000000 -0500
@@ -91,6 +91,7 @@ static const struct usb_device_id pwc_de
 	{ USB_DEVICE(0x0471, 0x0312) },
 	{ USB_DEVICE(0x0471, 0x0313) }, /* the 'new' 720K */
 	{ USB_DEVICE(0x0471, 0x0329) }, /* Philips SPC 900NC PC Camera */
+	{ USB_DEVICE(0x0471, 0x032C) }, /* Philips SPC 880NC PC Camera */
 	{ USB_DEVICE(0x069A, 0x0001) }, /* Askey */
 	{ USB_DEVICE(0x046D, 0x08B0) }, /* Logitech QuickCam Pro 3000 */
 	{ USB_DEVICE(0x046D, 0x08B1) }, /* Logitech QuickCam Notebook Pro */
@@ -811,6 +812,11 @@ static int usb_pwc_probe(struct usb_inte
 			name = "Philips SPC 900NC webcam";
 			type_id = 740;
 			break;
+		case 0x032C:
+			PWC_INFO("Philips SPC 880NC USB webcam detected.\n");
+			name = "Philips SPC 880NC webcam";
+			type_id = 740;
+			break;
 		default:
 			return -ENODEV;
 			break;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/usb/siano/smsusb.c linux-libre-4.4.107-gnu/drivers/media/usb/siano/smsusb.c
--- linux-libre-4.4-gnu/drivers/media/usb/siano/smsusb.c	2016-01-10 21:01:36.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/usb/siano/smsusb.c	2017-12-20 11:19:59.000000000 -0500
@@ -200,22 +200,30 @@ static int smsusb_start_streaming(struct
 static int smsusb_sendrequest(void *context, void *buffer, size_t size)
 {
 	struct smsusb_device_t *dev = (struct smsusb_device_t *) context;
-	struct sms_msg_hdr *phdr = (struct sms_msg_hdr *) buffer;
-	int dummy;
+	struct sms_msg_hdr *phdr;
+	int dummy, ret;
 
 	if (dev->state != SMSUSB_ACTIVE) {
 		pr_debug("Device not active yet\n");
 		return -ENOENT;
 	}
 
+	phdr = kmalloc(size, GFP_KERNEL);
+	if (!phdr)
+		return -ENOMEM;
+	memcpy(phdr, buffer, size);
+
 	pr_debug("sending %s(%d) size: %d\n",
 		  smscore_translate_msg(phdr->msg_type), phdr->msg_type,
 		  phdr->msg_length);
 
 	smsendian_handle_tx_message((struct sms_msg_data *) phdr);
-	smsendian_handle_message_header((struct sms_msg_hdr *)buffer);
-	return usb_bulk_msg(dev->udev, usb_sndbulkpipe(dev->udev, 2),
-			    buffer, size, &dummy, 1000);
+	smsendian_handle_message_header((struct sms_msg_hdr *)phdr);
+	ret = usb_bulk_msg(dev->udev, usb_sndbulkpipe(dev->udev, 2),
+			    phdr, size, &dummy, 1000);
+
+	kfree(phdr);
+	return ret;
 }
 
 static char *smsusb1_fw_lkup[] = {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/usb/usbtv/usbtv-audio.c linux-libre-4.4.107-gnu/drivers/media/usb/usbtv/usbtv-audio.c
--- linux-libre-4.4-gnu/drivers/media/usb/usbtv/usbtv-audio.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/usb/usbtv/usbtv-audio.c	2017-12-20 04:05:01.000000000 -0500
@@ -278,6 +278,9 @@ static void snd_usbtv_trigger(struct wor
 {
 	struct usbtv *chip = container_of(work, struct usbtv, snd_trigger);
 
+	if (!chip->snd)
+		return;
+
 	if (atomic_read(&chip->snd_stream))
 		usbtv_audio_start(chip);
 	else
@@ -378,6 +381,8 @@ err:
 
 void usbtv_audio_free(struct usbtv *usbtv)
 {
+	cancel_work_sync(&usbtv->snd_trigger);
+
 	if (usbtv->snd && usbtv->udev) {
 		snd_card_free(usbtv->snd);
 		usbtv->snd = NULL;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/usb/usbvision/usbvision-video.c linux-libre-4.4.107-gnu/drivers/media/usb/usbvision/usbvision-video.c
--- linux-libre-4.4-gnu/drivers/media/usb/usbvision/usbvision-video.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/usb/usbvision/usbvision-video.c	2017-12-20 04:05:01.000000000 -0500
@@ -1463,9 +1463,23 @@ static int usbvision_probe(struct usb_in
 
 	if (usbvision_device_data[model].interface >= 0)
 		interface = &dev->actconfig->interface[usbvision_device_data[model].interface]->altsetting[0];
-	else
+	else if (ifnum < dev->actconfig->desc.bNumInterfaces)
 		interface = &dev->actconfig->interface[ifnum]->altsetting[0];
+	else {
+		dev_err(&intf->dev, "interface %d is invalid, max is %d\n",
+		    ifnum, dev->actconfig->desc.bNumInterfaces - 1);
+		ret = -ENODEV;
+		goto err_usb;
+	}
+
+	if (interface->desc.bNumEndpoints < 2) {
+		dev_err(&intf->dev, "interface %d has %d endpoints, but must"
+		    " have minimum 2\n", ifnum, interface->desc.bNumEndpoints);
+		ret = -ENODEV;
+		goto err_usb;
+	}
 	endpoint = &interface->endpoint[1].desc;
+
 	if (!usb_endpoint_xfer_isoc(endpoint)) {
 		dev_err(&intf->dev, "%s: interface %d. has non-ISO endpoint!\n",
 		    __func__, ifnum);
@@ -1509,7 +1523,14 @@ static int usbvision_probe(struct usb_in
 	}
 
 	for (i = 0; i < usbvision->num_alt; i++) {
-		u16 tmp = le16_to_cpu(uif->altsetting[i].endpoint[1].desc.
+		u16 tmp;
+
+		if (uif->altsetting[i].desc.bNumEndpoints < 2) {
+			ret = -ENODEV;
+			goto err_pkt;
+		}
+
+		tmp = le16_to_cpu(uif->altsetting[i].endpoint[1].desc.
 				      wMaxPacketSize);
 		usbvision->alt_max_pkt_size[i] =
 			(tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/usb/uvc/uvc_ctrl.c linux-libre-4.4.107-gnu/drivers/media/usb/uvc/uvc_ctrl.c
--- linux-libre-4.4-gnu/drivers/media/usb/uvc/uvc_ctrl.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/usb/uvc/uvc_ctrl.c	2017-12-20 04:05:01.000000000 -0500
@@ -2001,6 +2001,13 @@ int uvc_ctrl_add_mapping(struct uvc_vide
 		goto done;
 	}
 
+	/* Validate the user-provided bit-size and offset */
+	if (mapping->size > 32 ||
+	    mapping->offset + mapping->size > ctrl->info.size * 8) {
+		ret = -EINVAL;
+		goto done;
+	}
+
 	list_for_each_entry(map, &ctrl->info.mappings, list) {
 		if (mapping->id == map->id) {
 			uvc_trace(UVC_TRACE_CONTROL, "Can't add mapping '%s', "
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/usb/uvc/uvc_driver.c linux-libre-4.4.107-gnu/drivers/media/usb/uvc/uvc_driver.c
--- linux-libre-4.4-gnu/drivers/media/usb/uvc/uvc_driver.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/usb/uvc/uvc_driver.c	2017-12-20 04:05:01.000000000 -0500
@@ -148,6 +148,26 @@ static struct uvc_format_desc uvc_fmts[]
 		.guid		= UVC_GUID_FORMAT_H264,
 		.fcc		= V4L2_PIX_FMT_H264,
 	},
+	{
+		.name		= "Greyscale 8 L/R (Y8I)",
+		.guid		= UVC_GUID_FORMAT_Y8I,
+		.fcc		= V4L2_PIX_FMT_Y8I,
+	},
+	{
+		.name		= "Greyscale 12 L/R (Y12I)",
+		.guid		= UVC_GUID_FORMAT_Y12I,
+		.fcc		= V4L2_PIX_FMT_Y12I,
+	},
+	{
+		.name		= "Depth data 16-bit (Z16)",
+		.guid		= UVC_GUID_FORMAT_Z16,
+		.fcc		= V4L2_PIX_FMT_Z16,
+	},
+	{
+		.name		= "Bayer 10-bit (SRGGB10P)",
+		.guid		= UVC_GUID_FORMAT_RW10,
+		.fcc		= V4L2_PIX_FMT_SRGGB10P,
+	},
 };
 
 /* ------------------------------------------------------------------------
@@ -1575,6 +1595,114 @@ static const char *uvc_print_chain(struc
 	return buffer;
 }
 
+static struct uvc_video_chain *uvc_alloc_chain(struct uvc_device *dev)
+{
+	struct uvc_video_chain *chain;
+
+	chain = kzalloc(sizeof(*chain), GFP_KERNEL);
+	if (chain == NULL)
+		return NULL;
+
+	INIT_LIST_HEAD(&chain->entities);
+	mutex_init(&chain->ctrl_mutex);
+	chain->dev = dev;
+	v4l2_prio_init(&chain->prio);
+
+	return chain;
+}
+
+/*
+ * Fallback heuristic for devices that don't connect units and terminals in a
+ * valid chain.
+ *
+ * Some devices have invalid baSourceID references, causing uvc_scan_chain()
+ * to fail, but if we just take the entities we can find and put them together
+ * in the most sensible chain we can think of, turns out they do work anyway.
+ * Note: This heuristic assumes there is a single chain.
+ *
+ * At the time of writing, devices known to have such a broken chain are
+ *  - Acer Integrated Camera (5986:055a)
+ *  - Realtek rtl157a7 (0bda:57a7)
+ */
+static int uvc_scan_fallback(struct uvc_device *dev)
+{
+	struct uvc_video_chain *chain;
+	struct uvc_entity *iterm = NULL;
+	struct uvc_entity *oterm = NULL;
+	struct uvc_entity *entity;
+	struct uvc_entity *prev;
+
+	/*
+	 * Start by locating the input and output terminals. We only support
+	 * devices with exactly one of each for now.
+	 */
+	list_for_each_entry(entity, &dev->entities, list) {
+		if (UVC_ENTITY_IS_ITERM(entity)) {
+			if (iterm)
+				return -EINVAL;
+			iterm = entity;
+		}
+
+		if (UVC_ENTITY_IS_OTERM(entity)) {
+			if (oterm)
+				return -EINVAL;
+			oterm = entity;
+		}
+	}
+
+	if (iterm == NULL || oterm == NULL)
+		return -EINVAL;
+
+	/* Allocate the chain and fill it. */
+	chain = uvc_alloc_chain(dev);
+	if (chain == NULL)
+		return -ENOMEM;
+
+	if (uvc_scan_chain_entity(chain, oterm) < 0)
+		goto error;
+
+	prev = oterm;
+
+	/*
+	 * Add all Processing and Extension Units with two pads. The order
+	 * doesn't matter much, use reverse list traversal to connect units in
+	 * UVC descriptor order as we build the chain from output to input. This
+	 * leads to units appearing in the order meant by the manufacturer for
+	 * the cameras known to require this heuristic.
+	 */
+	list_for_each_entry_reverse(entity, &dev->entities, list) {
+		if (entity->type != UVC_VC_PROCESSING_UNIT &&
+		    entity->type != UVC_VC_EXTENSION_UNIT)
+			continue;
+
+		if (entity->num_pads != 2)
+			continue;
+
+		if (uvc_scan_chain_entity(chain, entity) < 0)
+			goto error;
+
+		prev->baSourceID[0] = entity->id;
+		prev = entity;
+	}
+
+	if (uvc_scan_chain_entity(chain, iterm) < 0)
+		goto error;
+
+	prev->baSourceID[0] = iterm->id;
+
+	list_add_tail(&chain->list, &dev->chains);
+
+	uvc_trace(UVC_TRACE_PROBE,
+		  "Found a video chain by fallback heuristic (%s).\n",
+		  uvc_print_chain(chain));
+
+	return 0;
+
+error:
+	kfree(chain);
+	return -EINVAL;
+}
+
 /*
  * Scan the device for video chains and register video devices.
  *
@@ -1597,15 +1725,10 @@ static int uvc_scan_device(struct uvc_de
 		if (term->chain.next || term->chain.prev)
 			continue;
 
-		chain = kzalloc(sizeof(*chain), GFP_KERNEL);
+		chain = uvc_alloc_chain(dev);
 		if (chain == NULL)
 			return -ENOMEM;
 
-		INIT_LIST_HEAD(&chain->entities);
-		mutex_init(&chain->ctrl_mutex);
-		chain->dev = dev;
-		v4l2_prio_init(&chain->prio);
-
 		term->flags |= UVC_ENTITY_FLAG_DEFAULT;
 
 		if (uvc_scan_chain(chain, term) < 0) {
@@ -1619,6 +1742,9 @@ static int uvc_scan_device(struct uvc_de
 		list_add_tail(&chain->list, &dev->chains);
 	}
 
+	if (list_empty(&dev->chains))
+		uvc_scan_fallback(dev);
+
 	if (list_empty(&dev->chains)) {
 		uvc_printk(KERN_INFO, "No valid video chain found.\n");
 		return -1;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/usb/uvc/uvc_queue.c linux-libre-4.4.107-gnu/drivers/media/usb/uvc/uvc_queue.c
--- linux-libre-4.4-gnu/drivers/media/usb/uvc/uvc_queue.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/usb/uvc/uvc_queue.c	2017-12-20 04:05:01.000000000 -0500
@@ -416,7 +416,7 @@ struct uvc_buffer *uvc_queue_next_buffer
 		nextbuf = NULL;
 	spin_unlock_irqrestore(&queue->irqlock, flags);
 
-	buf->state = buf->error ? VB2_BUF_STATE_ERROR : UVC_BUF_STATE_DONE;
+	buf->state = buf->error ? UVC_BUF_STATE_ERROR : UVC_BUF_STATE_DONE;
 	vb2_set_plane_payload(&buf->buf.vb2_buf, 0, buf->bytesused);
 	vb2_buffer_done(&buf->buf.vb2_buf, VB2_BUF_STATE_DONE);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/usb/uvc/uvc_v4l2.c linux-libre-4.4.107-gnu/drivers/media/usb/uvc/uvc_v4l2.c
--- linux-libre-4.4-gnu/drivers/media/usb/uvc/uvc_v4l2.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/usb/uvc/uvc_v4l2.c	2017-12-20 04:05:01.000000000 -0500
@@ -1388,47 +1388,44 @@ static int uvc_v4l2_put_xu_query(const s
 static long uvc_v4l2_compat_ioctl32(struct file *file,
 		     unsigned int cmd, unsigned long arg)
 {
+	struct uvc_fh *handle = file->private_data;
 	union {
 		struct uvc_xu_control_mapping xmap;
 		struct uvc_xu_control_query xqry;
 	} karg;
 	void __user *up = compat_ptr(arg);
-	mm_segment_t old_fs;
 	long ret;
 
 	switch (cmd) {
 	case UVCIOC_CTRL_MAP32:
-		cmd = UVCIOC_CTRL_MAP;
 		ret = uvc_v4l2_get_xu_mapping(&karg.xmap, up);
+		if (ret)
+			return ret;
+		ret = uvc_ioctl_ctrl_map(handle->chain, &karg.xmap);
+		if (ret)
+			return ret;
+		ret = uvc_v4l2_put_xu_mapping(&karg.xmap, up);
+		if (ret)
+			return ret;
+
 		break;
 
 	case UVCIOC_CTRL_QUERY32:
-		cmd = UVCIOC_CTRL_QUERY;
 		ret = uvc_v4l2_get_xu_query(&karg.xqry, up);
+		if (ret)
+			return ret;
+		ret = uvc_xu_ctrl_query(handle->chain, &karg.xqry);
+		if (ret)
+			return ret;
+		ret = uvc_v4l2_put_xu_query(&karg.xqry, up);
+		if (ret)
+			return ret;
 		break;
 
 	default:
 		return -ENOIOCTLCMD;
 	}
 
-	old_fs = get_fs();
-	set_fs(KERNEL_DS);
-	ret = video_ioctl2(file, cmd, (unsigned long)&karg);
-	set_fs(old_fs);
-
-	if (ret < 0)
-		return ret;
-
-	switch (cmd) {
-	case UVCIOC_CTRL_MAP:
-		ret = uvc_v4l2_put_xu_mapping(&karg.xmap, up);
-		break;
-
-	case UVCIOC_CTRL_QUERY:
-		ret = uvc_v4l2_put_xu_query(&karg.xqry, up);
-		break;
-	}
-
 	return ret;
 }
 #endif
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/usb/uvc/uvcvideo.h linux-libre-4.4.107-gnu/drivers/media/usb/uvc/uvcvideo.h
--- linux-libre-4.4-gnu/drivers/media/usb/uvc/uvcvideo.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/usb/uvc/uvcvideo.h	2017-12-20 04:05:01.000000000 -0500
@@ -119,6 +119,18 @@
 #define UVC_GUID_FORMAT_H264 \
 	{ 'H',  '2',  '6',  '4', 0x00, 0x00, 0x10, 0x00, \
 	 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
+#define UVC_GUID_FORMAT_Y8I \
+	{ 'Y',  '8',  'I',  ' ', 0x00, 0x00, 0x10, 0x00, \
+	 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
+#define UVC_GUID_FORMAT_Y12I \
+	{ 'Y',  '1',  '2',  'I', 0x00, 0x00, 0x10, 0x00, \
+	 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
+#define UVC_GUID_FORMAT_Z16 \
+	{ 'Z',  '1',  '6',  ' ', 0x00, 0x00, 0x10, 0x00, \
+	 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
+#define UVC_GUID_FORMAT_RW10 \
+	{ 'R',  'W',  '1',  '0', 0x00, 0x00, 0x10, 0x00, \
+	 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
 
 /* ------------------------------------------------------------------------
  * Driver specific constants.
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/usb/zr364xx/zr364xx.c linux-libre-4.4.107-gnu/drivers/media/usb/zr364xx/zr364xx.c
--- linux-libre-4.4-gnu/drivers/media/usb/zr364xx/zr364xx.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/usb/zr364xx/zr364xx.c	2017-12-20 04:05:01.000000000 -0500
@@ -604,6 +604,14 @@ static int zr364xx_read_video_callback(s
 	ptr = pdest = frm->lpvbits;
 
 	if (frm->ulState == ZR364XX_READ_IDLE) {
+		if (purb->actual_length < 128) {
+			/* header incomplete */
+			dev_info(&cam->udev->dev,
+				 "%s: buffer (%d bytes) too small to hold jpeg header. Discarding.\n",
+				 __func__, purb->actual_length);
+			return -EINVAL;
+		}
+
 		frm->ulState = ZR364XX_READ_FRAME;
 		frm->cur_size = 0;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/v4l2-core/v4l2-compat-ioctl32.c linux-libre-4.4.107-gnu/drivers/media/v4l2-core/v4l2-compat-ioctl32.c
--- linux-libre-4.4-gnu/drivers/media/v4l2-core/v4l2-compat-ioctl32.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/v4l2-core/v4l2-compat-ioctl32.c	2017-12-20 04:05:01.000000000 -0500
@@ -280,7 +280,8 @@ static int put_v4l2_format32(struct v4l2
 static int put_v4l2_create32(struct v4l2_create_buffers *kp, struct v4l2_create_buffers32 __user *up)
 {
 	if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_create_buffers32)) ||
-	    copy_to_user(up, kp, offsetof(struct v4l2_create_buffers32, format)))
+	    copy_to_user(up, kp, offsetof(struct v4l2_create_buffers32, format)) ||
+	    copy_to_user(up->reserved, kp->reserved, sizeof(kp->reserved)))
 		return -EFAULT;
 	return __put_v4l2_format32(&kp->format, &up->format);
 }
@@ -415,7 +416,8 @@ static int get_v4l2_buffer32(struct v4l2
 		get_user(kp->index, &up->index) ||
 		get_user(kp->type, &up->type) ||
 		get_user(kp->flags, &up->flags) ||
-		get_user(kp->memory, &up->memory))
+		get_user(kp->memory, &up->memory) ||
+		get_user(kp->length, &up->length))
 			return -EFAULT;
 
 	if (V4L2_TYPE_IS_OUTPUT(kp->type))
@@ -427,9 +429,6 @@ static int get_v4l2_buffer32(struct v4l2
 			return -EFAULT;
 
 	if (V4L2_TYPE_IS_MULTIPLANAR(kp->type)) {
-		if (get_user(kp->length, &up->length))
-			return -EFAULT;
-
 		num_planes = kp->length;
 		if (num_planes == 0) {
 			kp->m.planes = NULL;
@@ -462,16 +461,14 @@ static int get_v4l2_buffer32(struct v4l2
 	} else {
 		switch (kp->memory) {
 		case V4L2_MEMORY_MMAP:
-			if (get_user(kp->length, &up->length) ||
-				get_user(kp->m.offset, &up->m.offset))
+			if (get_user(kp->m.offset, &up->m.offset))
 				return -EFAULT;
 			break;
 		case V4L2_MEMORY_USERPTR:
 			{
 			compat_long_t tmp;
 
-			if (get_user(kp->length, &up->length) ||
-			    get_user(tmp, &up->m.userptr))
+			if (get_user(tmp, &up->m.userptr))
 				return -EFAULT;
 
 			kp->m.userptr = (unsigned long)compat_ptr(tmp);
@@ -513,7 +510,8 @@ static int put_v4l2_buffer32(struct v4l2
 		copy_to_user(&up->timecode, &kp->timecode, sizeof(struct v4l2_timecode)) ||
 		put_user(kp->sequence, &up->sequence) ||
 		put_user(kp->reserved2, &up->reserved2) ||
-		put_user(kp->reserved, &up->reserved))
+		put_user(kp->reserved, &up->reserved) ||
+		put_user(kp->length, &up->length))
 			return -EFAULT;
 
 	if (V4L2_TYPE_IS_MULTIPLANAR(kp->type)) {
@@ -536,13 +534,11 @@ static int put_v4l2_buffer32(struct v4l2
 	} else {
 		switch (kp->memory) {
 		case V4L2_MEMORY_MMAP:
-			if (put_user(kp->length, &up->length) ||
-				put_user(kp->m.offset, &up->m.offset))
+			if (put_user(kp->m.offset, &up->m.offset))
 				return -EFAULT;
 			break;
 		case V4L2_MEMORY_USERPTR:
-			if (put_user(kp->length, &up->length) ||
-				put_user(kp->m.userptr, &up->m.userptr))
+			if (put_user(kp->m.userptr, &up->m.userptr))
 				return -EFAULT;
 			break;
 		case V4L2_MEMORY_OVERLAY:
@@ -777,7 +773,8 @@ static int put_v4l2_event32(struct v4l2_
 		copy_to_user(&up->u, &kp->u, sizeof(kp->u)) ||
 		put_user(kp->pending, &up->pending) ||
 		put_user(kp->sequence, &up->sequence) ||
-		compat_put_timespec(&kp->timestamp, &up->timestamp) ||
+		put_user(kp->timestamp.tv_sec, &up->timestamp.tv_sec) ||
+		put_user(kp->timestamp.tv_nsec, &up->timestamp.tv_nsec) ||
 		put_user(kp->id, &up->id) ||
 		copy_to_user(up->reserved, kp->reserved, 8 * sizeof(__u32)))
 			return -EFAULT;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/v4l2-core/v4l2-ctrls.c linux-libre-4.4.107-gnu/drivers/media/v4l2-core/v4l2-ctrls.c
--- linux-libre-4.4-gnu/drivers/media/v4l2-core/v4l2-ctrls.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/v4l2-core/v4l2-ctrls.c	2017-12-20 04:05:01.000000000 -0500
@@ -1200,6 +1200,16 @@ void v4l2_ctrl_fill(u32 id, const char *
 }
 EXPORT_SYMBOL(v4l2_ctrl_fill);
 
+static u32 user_flags(const struct v4l2_ctrl *ctrl)
+{
+	u32 flags = ctrl->flags;
+
+	if (ctrl->is_ptr)
+		flags |= V4L2_CTRL_FLAG_HAS_PAYLOAD;
+
+	return flags;
+}
+
 static void fill_event(struct v4l2_event *ev, struct v4l2_ctrl *ctrl, u32 changes)
 {
 	memset(ev->reserved, 0, sizeof(ev->reserved));
@@ -1207,7 +1217,7 @@ static void fill_event(struct v4l2_event
 	ev->id = ctrl->id;
 	ev->u.ctrl.changes = changes;
 	ev->u.ctrl.type = ctrl->type;
-	ev->u.ctrl.flags = ctrl->flags;
+	ev->u.ctrl.flags = user_flags(ctrl);
 	if (ctrl->is_ptr)
 		ev->u.ctrl.value64 = 0;
 	else
@@ -2536,10 +2546,8 @@ int v4l2_query_ext_ctrl(struct v4l2_ctrl
 	else
 		qc->id = ctrl->id;
 	strlcpy(qc->name, ctrl->name, sizeof(qc->name));
-	qc->flags = ctrl->flags;
+	qc->flags = user_flags(ctrl);
 	qc->type = ctrl->type;
-	if (ctrl->is_ptr)
-		qc->flags |= V4L2_CTRL_FLAG_HAS_PAYLOAD;
 	qc->elem_size = ctrl->elem_size;
 	qc->elems = ctrl->elems;
 	qc->nr_of_dims = ctrl->nr_of_dims;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/v4l2-core/videobuf2-core.c linux-libre-4.4.107-gnu/drivers/media/v4l2-core/videobuf2-core.c
--- linux-libre-4.4-gnu/drivers/media/v4l2-core/videobuf2-core.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/v4l2-core/videobuf2-core.c	2017-12-20 04:05:01.000000000 -0500
@@ -793,7 +793,7 @@ EXPORT_SYMBOL_GPL(vb2_core_create_bufs);
  */
 void *vb2_plane_vaddr(struct vb2_buffer *vb, unsigned int plane_no)
 {
-	if (plane_no > vb->num_planes || !vb->planes[plane_no].mem_priv)
+	if (plane_no >= vb->num_planes || !vb->planes[plane_no].mem_priv)
 		return NULL;
 
 	return call_ptr_memop(vb, vaddr, vb->planes[plane_no].mem_priv);
@@ -1502,10 +1502,10 @@ static int __vb2_wait_for_done_vb(struct
  * Will sleep if required for nonblocking == false.
  */
 static int __vb2_get_done_vb(struct vb2_queue *q, struct vb2_buffer **vb,
-				int nonblocking)
+			     void *pb, int nonblocking)
 {
 	unsigned long flags;
-	int ret;
+	int ret = 0;
 
 	/*
 	 * Wait for at least one buffer to become available on the done_list.
@@ -1521,12 +1521,14 @@ static int __vb2_get_done_vb(struct vb2_
 	spin_lock_irqsave(&q->done_lock, flags);
 	*vb = list_first_entry(&q->done_list, struct vb2_buffer, done_entry);
 	/*
-	 * Only remove the buffer from done_list if v4l2_buffer can handle all
-	 * the planes.
-	 * Verifying planes is NOT necessary since it already has been checked
-	 * before the buffer is queued/prepared. So it can never fail.
+	 * Only remove the buffer from done_list if all planes can be
+	 * handled. Some cases such as V4L2 file I/O and DVB have pb
+	 * == NULL; skip the check then as there's nothing to verify.
 	 */
-	list_del(&(*vb)->done_entry);
+	if (pb)
+		ret = call_bufop(q, verify_planes_array, *vb, pb);
+	if (!ret)
+		list_del(&(*vb)->done_entry);
 	spin_unlock_irqrestore(&q->done_lock, flags);
 
 	return ret;
@@ -1604,7 +1606,7 @@ int vb2_core_dqbuf(struct vb2_queue *q,
 	struct vb2_buffer *vb = NULL;
 	int ret;
 
-	ret = __vb2_get_done_vb(q, &vb, nonblocking);
+	ret = __vb2_get_done_vb(q, &vb, pb, nonblocking);
 	if (ret < 0)
 		return ret;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/v4l2-core/videobuf2-memops.c linux-libre-4.4.107-gnu/drivers/media/v4l2-core/videobuf2-memops.c
--- linux-libre-4.4-gnu/drivers/media/v4l2-core/videobuf2-memops.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/v4l2-core/videobuf2-memops.c	2017-12-20 04:05:01.000000000 -0500
@@ -49,7 +49,7 @@ struct frame_vector *vb2_create_framevec
 	vec = frame_vector_create(nr);
 	if (!vec)
 		return ERR_PTR(-ENOMEM);
-	ret = get_vaddr_frames(start, nr, write, 1, vec);
+	ret = get_vaddr_frames(start & PAGE_MASK, nr, write, true, vec);
 	if (ret < 0)
 		goto out_destroy;
 	/* We accept only complete set of PFNs */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/media/v4l2-core/videobuf2-v4l2.c linux-libre-4.4.107-gnu/drivers/media/v4l2-core/videobuf2-v4l2.c
--- linux-libre-4.4-gnu/drivers/media/v4l2-core/videobuf2-v4l2.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/media/v4l2-core/videobuf2-v4l2.c	2017-12-20 04:05:01.000000000 -0500
@@ -67,6 +67,11 @@ static int __verify_planes_array(struct
 	return 0;
 }
 
+static int __verify_planes_array_core(struct vb2_buffer *vb, const void *pb)
+{
+	return __verify_planes_array(vb, pb);
+}
+
 /**
  * __verify_length() - Verify that the bytesused value for each plane fits in
  * the plane length and that the data offset doesn't exceed the bytesused value.
@@ -432,6 +437,7 @@ static int __fill_vb2_buffer(struct vb2_
 }
 
 static const struct vb2_buf_ops v4l2_buf_ops = {
+	.verify_planes_array	= __verify_planes_array_core,
 	.fill_user_buffer	= __fill_v4l2_buffer,
 	.fill_vb2_buffer	= __fill_vb2_buffer,
 	.set_timestamp		= __set_timestamp,
@@ -822,10 +828,10 @@ unsigned int vb2_poll(struct vb2_queue *
 		return res | POLLERR;
 
 	/*
-	 * For output streams you can write as long as there are fewer buffers
-	 * queued than there are buffers available.
+	 * For output streams you can call write() as long as there are fewer
+	 * buffers queued than there are buffers available.
 	 */
-	if (q->is_output && q->queued_count < q->num_buffers)
+	if (q->is_output && q->fileio && q->queued_count < q->num_buffers)
 		return res | POLLOUT | POLLWRNORM;
 
 	if (list_empty(&q->done_list)) {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/memory/omap-gpmc.c linux-libre-4.4.107-gnu/drivers/memory/omap-gpmc.c
--- linux-libre-4.4-gnu/drivers/memory/omap-gpmc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/memory/omap-gpmc.c	2017-12-20 04:05:01.000000000 -0500
@@ -394,7 +394,7 @@ static void gpmc_cs_bool_timings(int cs,
 	gpmc_cs_modify_reg(cs, GPMC_CS_CONFIG4,
 			   GPMC_CONFIG4_OEEXTRADELAY, p->oe_extra_delay);
 	gpmc_cs_modify_reg(cs, GPMC_CS_CONFIG4,
-			   GPMC_CONFIG4_OEEXTRADELAY, p->we_extra_delay);
+			   GPMC_CONFIG4_WEEXTRADELAY, p->we_extra_delay);
 	gpmc_cs_modify_reg(cs, GPMC_CS_CONFIG6,
 			   GPMC_CONFIG6_CYCLE2CYCLESAMECSEN,
 			   p->cycle2cyclesamecsen);
@@ -1890,9 +1890,7 @@ static int gpmc_probe_onenand_child(stru
 	if (!of_property_read_u32(child, "dma-channel", &val))
 		gpmc_onenand_data->dma_channel = val;
 
-	gpmc_onenand_init(gpmc_onenand_data);
-
-	return 0;
+	return gpmc_onenand_init(gpmc_onenand_data);
 }
 #else
 static int gpmc_probe_onenand_child(struct platform_device *pdev,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/memstick/host/rtsx_usb_ms.c linux-libre-4.4.107-gnu/drivers/memstick/host/rtsx_usb_ms.c
--- linux-libre-4.4-gnu/drivers/memstick/host/rtsx_usb_ms.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/memstick/host/rtsx_usb_ms.c	2017-12-20 04:05:01.000000000 -0500
@@ -524,6 +524,7 @@ static void rtsx_usb_ms_handle_req(struc
 	int rc;
 
 	if (!host->req) {
+		pm_runtime_get_sync(ms_dev(host));
 		do {
 			rc = memstick_next_req(msh, &host->req);
 			dev_dbg(ms_dev(host), "next req %d\n", rc);
@@ -544,6 +545,7 @@ static void rtsx_usb_ms_handle_req(struc
 						host->req->error);
 			}
 		} while (!rc);
+		pm_runtime_put(ms_dev(host));
 	}
 
 }
@@ -570,6 +572,7 @@ static int rtsx_usb_ms_set_param(struct
 	dev_dbg(ms_dev(host), "%s: param = %d, value = %d\n",
 			__func__, param, value);
 
+	pm_runtime_get_sync(ms_dev(host));
 	mutex_lock(&ucr->dev_mutex);
 
 	err = rtsx_usb_card_exclusive_check(ucr, RTSX_USB_MS_CARD);
@@ -635,6 +638,7 @@ static int rtsx_usb_ms_set_param(struct
 	}
 out:
 	mutex_unlock(&ucr->dev_mutex);
+	pm_runtime_put(ms_dev(host));
 
 	/* power-on delay */
 	if (param == MEMSTICK_POWER && value == MEMSTICK_POWER_ON)
@@ -681,6 +685,7 @@ static int rtsx_usb_detect_ms_card(void
 	int err;
 
 	for (;;) {
+		pm_runtime_get_sync(ms_dev(host));
 		mutex_lock(&ucr->dev_mutex);
 
 		/* Check pending MS card changes */
@@ -703,6 +708,7 @@ static int rtsx_usb_detect_ms_card(void
 		}
 
 poll_again:
+		pm_runtime_put(ms_dev(host));
 		if (host->eject)
 			break;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/mfd/ab8500-sysctrl.c linux-libre-4.4.107-gnu/drivers/mfd/ab8500-sysctrl.c
--- linux-libre-4.4-gnu/drivers/mfd/ab8500-sysctrl.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/mfd/ab8500-sysctrl.c	2017-12-20 04:05:01.000000000 -0500
@@ -99,7 +99,7 @@ int ab8500_sysctrl_read(u16 reg, u8 *val
 	u8 bank;
 
 	if (sysctrl_dev == NULL)
-		return -EINVAL;
+		return -EPROBE_DEFER;
 
 	bank = (reg >> 8);
 	if (!valid_bank(bank))
@@ -115,11 +115,13 @@ int ab8500_sysctrl_write(u16 reg, u8 mas
 	u8 bank;
 
 	if (sysctrl_dev == NULL)
-		return -EINVAL;
+		return -EPROBE_DEFER;
 
 	bank = (reg >> 8);
-	if (!valid_bank(bank))
+	if (!valid_bank(bank)) {
+		pr_err("invalid bank\n");
 		return -EINVAL;
+	}
 
 	return abx500_mask_and_set_register_interruptible(sysctrl_dev, bank,
 		(u8)(reg & 0xFF), mask, value);
@@ -180,9 +182,15 @@ static int ab8500_sysctrl_remove(struct
 	return 0;
 }
 
+static const struct of_device_id ab8500_sysctrl_match[] = {
+	{ .compatible = "stericsson,ab8500-sysctrl", },
+	{}
+};
+
 static struct platform_driver ab8500_sysctrl_driver = {
 	.driver = {
 		.name = "ab8500-sysctrl",
+		.of_match_table = ab8500_sysctrl_match,
 	},
 	.probe = ab8500_sysctrl_probe,
 	.remove = ab8500_sysctrl_remove,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/mfd/atmel-hlcdc.c linux-libre-4.4.107-gnu/drivers/mfd/atmel-hlcdc.c
--- linux-libre-4.4-gnu/drivers/mfd/atmel-hlcdc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/mfd/atmel-hlcdc.c	2017-12-20 04:05:01.000000000 -0500
@@ -50,8 +50,9 @@ static int regmap_atmel_hlcdc_reg_write(
 	if (reg <= ATMEL_HLCDC_DIS) {
 		u32 status;
 
-		readl_poll_timeout(hregmap->regs + ATMEL_HLCDC_SR, status,
-				   !(status & ATMEL_HLCDC_SIP), 1, 100);
+		readl_poll_timeout_atomic(hregmap->regs + ATMEL_HLCDC_SR,
+					  status, !(status & ATMEL_HLCDC_SIP),
+					  1, 100);
 	}
 
 	writel(val, hregmap->regs + reg);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/mfd/axp20x.c linux-libre-4.4.107-gnu/drivers/mfd/axp20x.c
--- linux-libre-4.4-gnu/drivers/mfd/axp20x.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/mfd/axp20x.c	2017-12-20 04:05:01.000000000 -0500
@@ -164,14 +164,14 @@ static struct resource axp22x_pek_resour
 static struct resource axp288_power_button_resources[] = {
 	{
 		.name	= "PEK_DBR",
-		.start	= AXP288_IRQ_POKN,
-		.end	= AXP288_IRQ_POKN,
+		.start	= AXP288_IRQ_POKP,
+		.end	= AXP288_IRQ_POKP,
 		.flags	= IORESOURCE_IRQ,
 	},
 	{
 		.name	= "PEK_DBF",
-		.start	= AXP288_IRQ_POKP,
-		.end	= AXP288_IRQ_POKP,
+		.start	= AXP288_IRQ_POKN,
+		.end	= AXP288_IRQ_POKN,
 		.flags	= IORESOURCE_IRQ,
 	},
 };
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/mfd/intel-lpss.c linux-libre-4.4.107-gnu/drivers/mfd/intel-lpss.c
--- linux-libre-4.4-gnu/drivers/mfd/intel-lpss.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/mfd/intel-lpss.c	2017-12-20 04:05:01.000000000 -0500
@@ -33,6 +33,7 @@
 #define LPSS_DEV_SIZE		0x200
 #define LPSS_PRIV_OFFSET	0x200
 #define LPSS_PRIV_SIZE		0x100
+#define LPSS_PRIV_REG_COUNT	(LPSS_PRIV_SIZE / 4)
 #define LPSS_IDMA64_OFFSET	0x800
 #define LPSS_IDMA64_SIZE	0x800
 
@@ -75,6 +76,7 @@ struct intel_lpss {
 	const struct mfd_cell *cell;
 	struct device *dev;
 	void __iomem *priv;
+	u32 priv_ctx[LPSS_PRIV_REG_COUNT];
 	int devid;
 	u32 caps;
 	u32 active_ltr;
@@ -445,6 +447,7 @@ int intel_lpss_probe(struct device *dev,
 err_remove_ltr:
 	intel_lpss_debugfs_remove(lpss);
 	intel_lpss_ltr_hide(lpss);
+	intel_lpss_unregister_clock(lpss);
 
 err_clk_register:
 	ida_simple_remove(&intel_lpss_devid_ida, lpss->devid);
@@ -484,6 +487,13 @@ EXPORT_SYMBOL_GPL(intel_lpss_prepare);
 
 int intel_lpss_suspend(struct device *dev)
 {
+	struct intel_lpss *lpss = dev_get_drvdata(dev);
+	unsigned int i;
+
+	/* Save device context */
+	for (i = 0; i < LPSS_PRIV_REG_COUNT; i++)
+		lpss->priv_ctx[i] = readl(lpss->priv + i * 4);
+
 	return 0;
 }
 EXPORT_SYMBOL_GPL(intel_lpss_suspend);
@@ -491,8 +501,13 @@ EXPORT_SYMBOL_GPL(intel_lpss_suspend);
 int intel_lpss_resume(struct device *dev)
 {
 	struct intel_lpss *lpss = dev_get_drvdata(dev);
+	unsigned int i;
 
-	intel_lpss_init_dev(lpss);
+	intel_lpss_deassert_reset(lpss);
+
+	/* Restore device context */
+	for (i = 0; i < LPSS_PRIV_REG_COUNT; i++)
+		writel(lpss->priv_ctx[i], lpss->priv + i * 4);
 
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/mfd/intel_soc_pmic_core.c linux-libre-4.4.107-gnu/drivers/mfd/intel_soc_pmic_core.c
--- linux-libre-4.4-gnu/drivers/mfd/intel_soc_pmic_core.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/mfd/intel_soc_pmic_core.c	2017-12-20 04:05:01.000000000 -0500
@@ -35,6 +35,7 @@ static struct gpiod_lookup_table panel_g
 	.table = {
 		/* Panel EN/DISABLE */
 		GPIO_LOOKUP("gpio_crystalcove", 94, "panel", GPIO_ACTIVE_HIGH),
+		{ },
 	},
 };
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/mfd/Kconfig linux-libre-4.4.107-gnu/drivers/mfd/Kconfig
--- linux-libre-4.4-gnu/drivers/mfd/Kconfig	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/mfd/Kconfig	2017-12-20 04:05:01.000000000 -0500
@@ -1460,6 +1460,7 @@ config MFD_WM8350
 config MFD_WM8350_I2C
 	bool "Wolfson Microelectronics WM8350 with I2C"
 	select MFD_WM8350
+	select REGMAP_I2C
 	depends on I2C=y
 	help
 	  The WM8350 is an integrated audio and power management
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/mfd/mfd-core.c linux-libre-4.4.107-gnu/drivers/mfd/mfd-core.c
--- linux-libre-4.4-gnu/drivers/mfd/mfd-core.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/mfd/mfd-core.c	2017-12-20 04:05:01.000000000 -0500
@@ -354,6 +354,8 @@ int mfd_clone_cell(const char *cell, con
 					clones[i]);
 	}
 
+	put_device(dev);
+
 	return 0;
 }
 EXPORT_SYMBOL(mfd_clone_cell);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/mfd/omap-usb-tll.c linux-libre-4.4.107-gnu/drivers/mfd/omap-usb-tll.c
--- linux-libre-4.4-gnu/drivers/mfd/omap-usb-tll.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/mfd/omap-usb-tll.c	2017-12-20 04:05:01.000000000 -0500
@@ -269,6 +269,8 @@ static int usbtll_omap_probe(struct plat
 
 		if (IS_ERR(tll->ch_clk[i]))
 			dev_dbg(dev, "can't get clock : %s\n", clkname);
+		else
+			clk_prepare(tll->ch_clk[i]);
 	}
 
 	pm_runtime_put_sync(dev);
@@ -301,9 +303,12 @@ static int usbtll_omap_remove(struct pla
 	tll_dev = NULL;
 	spin_unlock(&tll_lock);
 
-	for (i = 0; i < tll->nch; i++)
-		if (!IS_ERR(tll->ch_clk[i]))
+	for (i = 0; i < tll->nch; i++) {
+		if (!IS_ERR(tll->ch_clk[i])) {
+			clk_unprepare(tll->ch_clk[i]);
 			clk_put(tll->ch_clk[i]);
+		}
+	}
 
 	pm_runtime_disable(&pdev->dev);
 	return 0;
@@ -370,8 +375,8 @@ int omap_tll_init(struct usbhs_omap_plat
 				 * and use SDR Mode
 				 */
 				reg &= ~(OMAP_TLL_CHANNEL_CONF_UTMIAUTOIDLE
-					| OMAP_TLL_CHANNEL_CONF_ULPINOBITSTUFF
 					| OMAP_TLL_CHANNEL_CONF_ULPIDDRMODE);
+				reg |= OMAP_TLL_CHANNEL_CONF_ULPINOBITSTUFF;
 			} else if (pdata->port_mode[i] ==
 					OMAP_EHCI_PORT_MODE_HSIC) {
 				/*
@@ -420,7 +425,7 @@ int omap_tll_enable(struct usbhs_omap_pl
 			if (IS_ERR(tll->ch_clk[i]))
 				continue;
 
-			r = clk_prepare_enable(tll->ch_clk[i]);
+			r = clk_enable(tll->ch_clk[i]);
 			if (r) {
 				dev_err(tll_dev,
 				 "Error enabling ch %d clock: %d\n", i, r);
@@ -448,7 +453,7 @@ int omap_tll_disable(struct usbhs_omap_p
 	for (i = 0; i < tll->nch; i++) {
 		if (omap_usb_mode_needs_tll(pdata->port_mode[i])) {
 			if (!IS_ERR(tll->ch_clk[i]))
-				clk_disable_unprepare(tll->ch_clk[i]);
+				clk_disable(tll->ch_clk[i]);
 		}
 	}
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/mfd/qcom_rpm.c linux-libre-4.4.107-gnu/drivers/mfd/qcom_rpm.c
--- linux-libre-4.4-gnu/drivers/mfd/qcom_rpm.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/mfd/qcom_rpm.c	2017-12-20 04:05:01.000000000 -0500
@@ -34,7 +34,13 @@ struct qcom_rpm_resource {
 struct qcom_rpm_data {
 	u32 version;
 	const struct qcom_rpm_resource *resource_table;
-	unsigned n_resources;
+	unsigned int n_resources;
+	unsigned int req_ctx_off;
+	unsigned int req_sel_off;
+	unsigned int ack_ctx_off;
+	unsigned int ack_sel_off;
+	unsigned int req_sel_size;
+	unsigned int ack_sel_size;
 };
 
 struct qcom_rpm {
@@ -61,11 +67,7 @@ struct qcom_rpm {
 
 #define RPM_REQUEST_TIMEOUT	(5 * HZ)
 
-#define RPM_REQUEST_CONTEXT	3
-#define RPM_REQ_SELECT		11
-#define RPM_ACK_CONTEXT		15
-#define RPM_ACK_SELECTOR	23
-#define RPM_SELECT_SIZE		7
+#define RPM_MAX_SEL_SIZE	7
 
 #define RPM_NOTIFICATION	BIT(30)
 #define RPM_REJECTED		BIT(31)
@@ -157,6 +159,12 @@ static const struct qcom_rpm_data apq806
 	.version = 3,
 	.resource_table = apq8064_rpm_resource_table,
 	.n_resources = ARRAY_SIZE(apq8064_rpm_resource_table),
+	.req_ctx_off = 3,
+	.req_sel_off = 11,
+	.ack_ctx_off = 15,
+	.ack_sel_off = 23,
+	.req_sel_size = 4,
+	.ack_sel_size = 7,
 };
 
 static const struct qcom_rpm_resource msm8660_rpm_resource_table[] = {
@@ -240,6 +248,12 @@ static const struct qcom_rpm_data msm866
 	.version = 2,
 	.resource_table = msm8660_rpm_resource_table,
 	.n_resources = ARRAY_SIZE(msm8660_rpm_resource_table),
+	.req_ctx_off = 3,
+	.req_sel_off = 11,
+	.ack_ctx_off = 19,
+	.ack_sel_off = 27,
+	.req_sel_size = 7,
+	.ack_sel_size = 7,
 };
 
 static const struct qcom_rpm_resource msm8960_rpm_resource_table[] = {
@@ -322,6 +336,12 @@ static const struct qcom_rpm_data msm896
 	.version = 3,
 	.resource_table = msm8960_rpm_resource_table,
 	.n_resources = ARRAY_SIZE(msm8960_rpm_resource_table),
+	.req_ctx_off = 3,
+	.req_sel_off = 11,
+	.ack_ctx_off = 15,
+	.ack_sel_off = 23,
+	.req_sel_size = 4,
+	.ack_sel_size = 7,
 };
 
 static const struct qcom_rpm_resource ipq806x_rpm_resource_table[] = {
@@ -362,6 +382,12 @@ static const struct qcom_rpm_data ipq806
 	.version = 3,
 	.resource_table = ipq806x_rpm_resource_table,
 	.n_resources = ARRAY_SIZE(ipq806x_rpm_resource_table),
+	.req_ctx_off = 3,
+	.req_sel_off = 11,
+	.ack_ctx_off = 15,
+	.ack_sel_off = 23,
+	.req_sel_size = 4,
+	.ack_sel_size = 7,
 };
 
 static const struct of_device_id qcom_rpm_of_match[] = {
@@ -380,7 +406,7 @@ int qcom_rpm_write(struct qcom_rpm *rpm,
 {
 	const struct qcom_rpm_resource *res;
 	const struct qcom_rpm_data *data = rpm->data;
-	u32 sel_mask[RPM_SELECT_SIZE] = { 0 };
+	u32 sel_mask[RPM_MAX_SEL_SIZE] = { 0 };
 	int left;
 	int ret = 0;
 	int i;
@@ -398,12 +424,12 @@ int qcom_rpm_write(struct qcom_rpm *rpm,
 		writel_relaxed(buf[i], RPM_REQ_REG(rpm, res->target_id + i));
 
 	bitmap_set((unsigned long *)sel_mask, res->select_id, 1);
-	for (i = 0; i < ARRAY_SIZE(sel_mask); i++) {
+	for (i = 0; i < rpm->data->req_sel_size; i++) {
 		writel_relaxed(sel_mask[i],
-			       RPM_CTRL_REG(rpm, RPM_REQ_SELECT + i));
+			       RPM_CTRL_REG(rpm, rpm->data->req_sel_off + i));
 	}
 
-	writel_relaxed(BIT(state), RPM_CTRL_REG(rpm, RPM_REQUEST_CONTEXT));
+	writel_relaxed(BIT(state), RPM_CTRL_REG(rpm, rpm->data->req_ctx_off));
 
 	reinit_completion(&rpm->ack);
 	regmap_write(rpm->ipc_regmap, rpm->ipc_offset, BIT(rpm->ipc_bit));
@@ -426,10 +452,11 @@ static irqreturn_t qcom_rpm_ack_interrup
 	u32 ack;
 	int i;
 
-	ack = readl_relaxed(RPM_CTRL_REG(rpm, RPM_ACK_CONTEXT));
-	for (i = 0; i < RPM_SELECT_SIZE; i++)
-		writel_relaxed(0, RPM_CTRL_REG(rpm, RPM_ACK_SELECTOR + i));
-	writel(0, RPM_CTRL_REG(rpm, RPM_ACK_CONTEXT));
+	ack = readl_relaxed(RPM_CTRL_REG(rpm, rpm->data->ack_ctx_off));
+	for (i = 0; i < rpm->data->ack_sel_size; i++)
+		writel_relaxed(0,
+			RPM_CTRL_REG(rpm, rpm->data->ack_sel_off + i));
+	writel(0, RPM_CTRL_REG(rpm, rpm->data->ack_ctx_off));
 
 	if (ack & RPM_NOTIFICATION) {
 		dev_warn(rpm->dev, "ignoring notification!\n");
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/mfd/rtsx_usb.c linux-libre-4.4.107-gnu/drivers/mfd/rtsx_usb.c
--- linux-libre-4.4-gnu/drivers/mfd/rtsx_usb.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/mfd/rtsx_usb.c	2017-12-20 04:05:01.000000000 -0500
@@ -46,9 +46,6 @@ static void rtsx_usb_sg_timed_out(unsign
 
 	dev_dbg(&ucr->pusb_intf->dev, "%s: sg transfer timed out", __func__);
 	usb_sg_cancel(&ucr->current_sg);
-
-	/* we know the cancellation is caused by time-out */
-	ucr->current_sg.status = -ETIMEDOUT;
 }
 
 static int rtsx_usb_bulk_transfer_sglist(struct rtsx_ucr *ucr,
@@ -67,12 +64,15 @@ static int rtsx_usb_bulk_transfer_sglist
 	ucr->sg_timer.expires = jiffies + msecs_to_jiffies(timeout);
 	add_timer(&ucr->sg_timer);
 	usb_sg_wait(&ucr->current_sg);
-	del_timer_sync(&ucr->sg_timer);
+	if (!del_timer_sync(&ucr->sg_timer))
+		ret = -ETIMEDOUT;
+	else
+		ret = ucr->current_sg.status;
 
 	if (act_len)
 		*act_len = ucr->current_sg.bytes;
 
-	return ucr->current_sg.status;
+	return ret;
 }
 
 int rtsx_usb_transfer_data(struct rtsx_ucr *ucr, unsigned int pipe,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/misc/ad525x_dpot.c linux-libre-4.4.107-gnu/drivers/misc/ad525x_dpot.c
--- linux-libre-4.4-gnu/drivers/misc/ad525x_dpot.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/misc/ad525x_dpot.c	2017-12-20 04:05:01.000000000 -0500
@@ -216,7 +216,7 @@ static s32 dpot_read_i2c(struct dpot_dat
 			 */
 			value = swab16(value);
 
-			if (dpot->uid == DPOT_UID(AD5271_ID))
+			if (dpot->uid == DPOT_UID(AD5274_ID))
 				value = value >> 2;
 		return value;
 	default:
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/misc/c2port/c2port-duramar2150.c linux-libre-4.4.107-gnu/drivers/misc/c2port/c2port-duramar2150.c
--- linux-libre-4.4-gnu/drivers/misc/c2port/c2port-duramar2150.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/misc/c2port/c2port-duramar2150.c	2017-12-20 04:05:01.000000000 -0500
@@ -129,8 +129,8 @@ static int __init duramar2150_c2port_ini
 
 	duramar2150_c2port_dev = c2port_device_register("uc",
 					&duramar2150_c2port_ops, NULL);
-	if (!duramar2150_c2port_dev) {
-		ret = -ENODEV;
+	if (IS_ERR(duramar2150_c2port_dev)) {
+		ret = PTR_ERR(duramar2150_c2port_dev);
 		goto free_region;
 	}
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/misc/cxl/api.c linux-libre-4.4.107-gnu/drivers/misc/cxl/api.c
--- linux-libre-4.4-gnu/drivers/misc/cxl/api.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/misc/cxl/api.c	2017-12-20 04:05:01.000000000 -0500
@@ -25,7 +25,6 @@ struct cxl_context *cxl_dev_context_init
 
 	afu = cxl_pci_to_afu(dev);
 
-	get_device(&afu->dev);
 	ctx = cxl_context_alloc();
 	if (IS_ERR(ctx)) {
 		rc = PTR_ERR(ctx);
@@ -61,7 +60,6 @@ err_mapping:
 err_ctx:
 	kfree(ctx);
 err_dev:
-	put_device(&afu->dev);
 	return ERR_PTR(rc);
 }
 EXPORT_SYMBOL_GPL(cxl_dev_context_init);
@@ -87,8 +85,6 @@ int cxl_release_context(struct cxl_conte
 	if (ctx->status >= STARTED)
 		return -EBUSY;
 
-	put_device(&ctx->afu->dev);
-
 	cxl_context_free(ctx);
 
 	return 0;
@@ -176,10 +172,14 @@ int cxl_start_context(struct cxl_context
 
 	if (task) {
 		ctx->pid = get_task_pid(task, PIDTYPE_PID);
-		get_pid(ctx->pid);
+		ctx->glpid = get_task_pid(task->group_leader, PIDTYPE_PID);
 		kernel = false;
 	}
 
+	/*
+	 * Increment driver use count. Enables global TLBIs for hash
+	 * and callbacks to handle the segment table
+	 */
 	cxl_ctx_get();
 
 	if ((rc = cxl_attach_process(ctx, kernel, wed , 0))) {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/misc/cxl/context.c linux-libre-4.4.107-gnu/drivers/misc/cxl/context.c
--- linux-libre-4.4-gnu/drivers/misc/cxl/context.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/misc/cxl/context.c	2017-12-20 04:05:01.000000000 -0500
@@ -42,7 +42,7 @@ int cxl_context_init(struct cxl_context
 	spin_lock_init(&ctx->sste_lock);
 	ctx->afu = afu;
 	ctx->master = master;
-	ctx->pid = NULL; /* Set in start work ioctl */
+	ctx->pid = ctx->glpid = NULL; /* Set in start work ioctl */
 	mutex_init(&ctx->mapping_lock);
 	ctx->mapping = mapping;
 
@@ -97,6 +97,12 @@ int cxl_context_init(struct cxl_context
 	ctx->pe = i;
 	ctx->elem = &ctx->afu->spa[i];
 	ctx->pe_inserted = false;
+
+	/*
+	 * take a ref on the afu so that it stays alive at-least till
+	 * this context is reclaimed inside reclaim_ctx.
+	 */
+	cxl_afu_get(afu);
 	return 0;
 }
 
@@ -211,7 +217,11 @@ int __detach_context(struct cxl_context
 	WARN_ON(cxl_detach_process(ctx) &&
 		cxl_adapter_link_ok(ctx->afu->adapter));
 	flush_work(&ctx->fault_work); /* Only needed for dedicated process */
+
+	/* release the reference to the group leader and mm handling pid */
 	put_pid(ctx->pid);
+	put_pid(ctx->glpid);
+
 	cxl_ctx_put();
 	return 0;
 }
@@ -278,6 +288,9 @@ static void reclaim_ctx(struct rcu_head
 	if (ctx->irq_bitmap)
 		kfree(ctx->irq_bitmap);
 
+	/* Drop ref to the afu device taken during cxl_context_init */
+	cxl_afu_put(ctx->afu);
+
 	kfree(ctx);
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/misc/cxl/cxl.h linux-libre-4.4.107-gnu/drivers/misc/cxl/cxl.h
--- linux-libre-4.4-gnu/drivers/misc/cxl/cxl.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/misc/cxl/cxl.h	2017-12-20 04:05:01.000000000 -0500
@@ -403,6 +403,18 @@ struct cxl_afu {
 	bool enabled;
 };
 
+/* AFU refcount management */
+static inline struct cxl_afu *cxl_afu_get(struct cxl_afu *afu)
+{
+
+	return (get_device(&afu->dev) == NULL) ? NULL : afu;
+}
+
+static inline void  cxl_afu_put(struct cxl_afu *afu)
+{
+	put_device(&afu->dev);
+}
+
 
 struct cxl_irq_name {
 	struct list_head list;
@@ -433,6 +445,9 @@ struct cxl_context {
 	unsigned int sst_size, sst_lru;
 
 	wait_queue_head_t wq;
+	/* pid of the group leader associated with the pid */
+	struct pid *glpid;
+	/* use mm context associated with this pid for ds faults */
 	struct pid *pid;
 	spinlock_t lock; /* Protects pending_irq_mask, pending_fault and fault_addr */
 	/* Only used in PR mode */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/misc/cxl/fault.c linux-libre-4.4.107-gnu/drivers/misc/cxl/fault.c
--- linux-libre-4.4-gnu/drivers/misc/cxl/fault.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/misc/cxl/fault.c	2017-12-20 04:05:01.000000000 -0500
@@ -166,13 +166,92 @@ static void cxl_handle_page_fault(struct
 	cxl_ack_irq(ctx, CXL_PSL_TFC_An_R, 0);
 }
 
+/*
+ * Returns the mm_struct corresponding to the context ctx via ctx->pid
+ * In case the task has exited we use the task group leader accessible
+ * via ctx->glpid to find the next task in the thread group that has a
+ * valid  mm_struct associated with it. If a task with valid mm_struct
+ * is found the ctx->pid is updated to use the task struct for subsequent
+ * translations. In case no valid mm_struct is found in the task group to
+ * service the fault a NULL is returned.
+ */
+static struct mm_struct *get_mem_context(struct cxl_context *ctx)
+{
+	struct task_struct *task = NULL;
+	struct mm_struct *mm = NULL;
+	struct pid *old_pid = ctx->pid;
+
+	if (old_pid == NULL) {
+		pr_warn("%s: Invalid context for pe=%d\n",
+			 __func__, ctx->pe);
+		return NULL;
+	}
+
+	task = get_pid_task(old_pid, PIDTYPE_PID);
+
+	/*
+	 * pid_alive may look racy but this saves us from costly
+	 * get_task_mm when the task is a zombie. In worst case
+	 * we may think a task is alive, which is about to die
+	 * but get_task_mm will return NULL.
+	 */
+	if (task != NULL && pid_alive(task))
+		mm = get_task_mm(task);
+
+	/* release the task struct that was taken earlier */
+	if (task)
+		put_task_struct(task);
+	else
+		pr_devel("%s: Context owning pid=%i for pe=%i dead\n",
+			__func__, pid_nr(old_pid), ctx->pe);
+
+	/*
+	 * If we couldn't find the mm context then use the group
+	 * leader to iterate over the task group and find a task
+	 * that gives us mm_struct.
+	 */
+	if (unlikely(mm == NULL && ctx->glpid != NULL)) {
+
+		rcu_read_lock();
+		task = pid_task(ctx->glpid, PIDTYPE_PID);
+		if (task)
+			do {
+				mm = get_task_mm(task);
+				if (mm) {
+					ctx->pid = get_task_pid(task,
+								PIDTYPE_PID);
+					break;
+				}
+				task = next_thread(task);
+			} while (task && !thread_group_leader(task));
+		rcu_read_unlock();
+
+		/* check if we switched pid */
+		if (ctx->pid != old_pid) {
+			if (mm)
+				pr_devel("%s:pe=%i switch pid %i->%i\n",
+					 __func__, ctx->pe, pid_nr(old_pid),
+					 pid_nr(ctx->pid));
+			else
+				pr_devel("%s:Cannot find mm for pid=%i\n",
+					 __func__, pid_nr(old_pid));
+
+			/* drop the reference to older pid */
+			put_pid(old_pid);
+		}
+	}
+
+	return mm;
+}
+
+
+
 void cxl_handle_fault(struct work_struct *fault_work)
 {
 	struct cxl_context *ctx =
 		container_of(fault_work, struct cxl_context, fault_work);
 	u64 dsisr = ctx->dsisr;
 	u64 dar = ctx->dar;
-	struct task_struct *task = NULL;
 	struct mm_struct *mm = NULL;
 
 	if (cxl_p2n_read(ctx->afu, CXL_PSL_DSISR_An) != dsisr ||
@@ -195,17 +274,17 @@ void cxl_handle_fault(struct work_struct
 		"DSISR: %#llx DAR: %#llx\n", ctx->pe, dsisr, dar);
 
 	if (!ctx->kernel) {
-		if (!(task = get_pid_task(ctx->pid, PIDTYPE_PID))) {
-			pr_devel("cxl_handle_fault unable to get task %i\n",
-				 pid_nr(ctx->pid));
+
+		mm = get_mem_context(ctx);
+		/* indicates all the thread in task group have exited */
+		if (mm == NULL) {
+			pr_devel("%s: unable to get mm for pe=%d pid=%i\n",
+				 __func__, ctx->pe, pid_nr(ctx->pid));
 			cxl_ack_ae(ctx);
 			return;
-		}
-		if (!(mm = get_task_mm(task))) {
-			pr_devel("cxl_handle_fault unable to get mm %i\n",
-				 pid_nr(ctx->pid));
-			cxl_ack_ae(ctx);
-			goto out;
+		} else {
+			pr_devel("Handling page fault for pe=%d pid=%i\n",
+				 ctx->pe, pid_nr(ctx->pid));
 		}
 	}
 
@@ -218,33 +297,22 @@ void cxl_handle_fault(struct work_struct
 
 	if (mm)
 		mmput(mm);
-out:
-	if (task)
-		put_task_struct(task);
 }
 
 static void cxl_prefault_one(struct cxl_context *ctx, u64 ea)
 {
-	int rc;
-	struct task_struct *task;
 	struct mm_struct *mm;
 
-	if (!(task = get_pid_task(ctx->pid, PIDTYPE_PID))) {
-		pr_devel("cxl_prefault_one unable to get task %i\n",
-			 pid_nr(ctx->pid));
-		return;
-	}
-	if (!(mm = get_task_mm(task))) {
+	mm = get_mem_context(ctx);
+	if (mm == NULL) {
 		pr_devel("cxl_prefault_one unable to get mm %i\n",
 			 pid_nr(ctx->pid));
-		put_task_struct(task);
 		return;
 	}
 
-	rc = cxl_fault_segment(ctx, mm, ea);
+	cxl_fault_segment(ctx, mm, ea);
 
 	mmput(mm);
-	put_task_struct(task);
 }
 
 static u64 next_segment(u64 ea, u64 vsid)
@@ -263,18 +331,13 @@ static void cxl_prefault_vma(struct cxl_
 	struct copro_slb slb;
 	struct vm_area_struct *vma;
 	int rc;
-	struct task_struct *task;
 	struct mm_struct *mm;
 
-	if (!(task = get_pid_task(ctx->pid, PIDTYPE_PID))) {
-		pr_devel("cxl_prefault_vma unable to get task %i\n",
-			 pid_nr(ctx->pid));
-		return;
-	}
-	if (!(mm = get_task_mm(task))) {
+	mm = get_mem_context(ctx);
+	if (mm == NULL) {
 		pr_devel("cxl_prefault_vm unable to get mm %i\n",
 			 pid_nr(ctx->pid));
-		goto out1;
+		return;
 	}
 
 	down_read(&mm->mmap_sem);
@@ -295,8 +358,6 @@ static void cxl_prefault_vma(struct cxl_
 	up_read(&mm->mmap_sem);
 
 	mmput(mm);
-out1:
-	put_task_struct(task);
 }
 
 void cxl_prefault(struct cxl_context *ctx, u64 wed)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/misc/cxl/file.c linux-libre-4.4.107-gnu/drivers/misc/cxl/file.c
--- linux-libre-4.4-gnu/drivers/misc/cxl/file.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/misc/cxl/file.c	2017-12-20 04:05:01.000000000 -0500
@@ -67,7 +67,13 @@ static int __afu_open(struct inode *inod
 		spin_unlock(&adapter->afu_list_lock);
 		goto err_put_adapter;
 	}
-	get_device(&afu->dev);
+
+	/*
+	 * taking a ref to the afu so that it doesn't go away
+	 * for rest of the function. This ref is released before
+	 * we return.
+	 */
+	cxl_afu_get(afu);
 	spin_unlock(&adapter->afu_list_lock);
 
 	if (!afu->current_mode)
@@ -88,15 +94,13 @@ static int __afu_open(struct inode *inod
 
 	pr_devel("afu_open pe: %i\n", ctx->pe);
 	file->private_data = ctx;
-	cxl_ctx_get();
-
-	/* Our ref on the AFU will now hold the adapter */
-	put_device(&adapter->dev);
 
-	return 0;
+	/* indicate success */
+	rc = 0;
 
 err_put_afu:
-	put_device(&afu->dev);
+	/* release the ref taken earlier */
+	cxl_afu_put(afu);
 err_put_adapter:
 	put_device(&adapter->dev);
 	return rc;
@@ -131,8 +135,6 @@ int afu_release(struct inode *inode, str
 		mutex_unlock(&ctx->mapping_lock);
 	}
 
-	put_device(&ctx->afu->dev);
-
 	/*
 	 * At this this point all bottom halfs have finished and we should be
 	 * getting no more IRQs from the hardware for this context.  Once it's
@@ -155,11 +157,8 @@ static long afu_ioctl_start_work(struct
 
 	/* Do this outside the status_mutex to avoid a circular dependency with
 	 * the locking in cxl_mmap_fault() */
-	if (copy_from_user(&work, uwork,
-			   sizeof(struct cxl_ioctl_start_work))) {
-		rc = -EFAULT;
-		goto out;
-	}
+	if (copy_from_user(&work, uwork, sizeof(work)))
+		return -EFAULT;
 
 	mutex_lock(&ctx->status_mutex);
 	if (ctx->status != OPENED) {
@@ -198,14 +197,25 @@ static long afu_ioctl_start_work(struct
 	 * where a process (master, some daemon, etc) has opened the chardev on
 	 * behalf of another process, so the AFU's mm gets bound to the process
 	 * that performs this ioctl and not the process that opened the file.
+	 * Also we grab the PID of the group leader so that if the task that
+	 * has performed the attach operation exits the mm context of the
+	 * process is still accessible.
 	 */
-	ctx->pid = get_pid(get_task_pid(current, PIDTYPE_PID));
+	ctx->pid = get_task_pid(current, PIDTYPE_PID);
+	ctx->glpid = get_task_pid(current->group_leader, PIDTYPE_PID);
+
+	/*
+	 * Increment driver use count. Enables global TLBIs for hash
+	 * and callbacks to handle the segment table
+	 */
+	cxl_ctx_get();
 
 	trace_cxl_attach(ctx, work.work_element_descriptor, work.num_interrupts, amr);
 
 	if ((rc = cxl_attach_process(ctx, false, work.work_element_descriptor,
 				     amr))) {
 		afu_release_irqs(ctx, ctx);
+		cxl_ctx_put();
 		goto out;
 	}
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/misc/cxl/irq.c linux-libre-4.4.107-gnu/drivers/misc/cxl/irq.c
--- linux-libre-4.4-gnu/drivers/misc/cxl/irq.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/misc/cxl/irq.c	2017-12-20 04:05:01.000000000 -0500
@@ -288,7 +288,6 @@ unsigned int cxl_map_irq(struct cxl *ada
 void cxl_unmap_irq(unsigned int virq, void *cookie)
 {
 	free_irq(virq, cookie);
-	irq_dispose_mapping(virq);
 }
 
 static int cxl_register_one_irq(struct cxl *adapter,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/misc/cxl/Makefile linux-libre-4.4.107-gnu/drivers/misc/cxl/Makefile
--- linux-libre-4.4-gnu/drivers/misc/cxl/Makefile	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/misc/cxl/Makefile	2017-12-20 04:05:01.000000000 -0500
@@ -1,4 +1,4 @@
-ccflags-y := -Werror -Wno-unused-const-variable
+ccflags-y := -Werror $(call cc-disable-warning, unused-const-variable)
 
 cxl-y				+= main.o file.o irq.o fault.o native.o
 cxl-y				+= context.o sysfs.o debugfs.o pci.o trace.o
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/misc/cxl/pci.c linux-libre-4.4.107-gnu/drivers/misc/cxl/pci.c
--- linux-libre-4.4-gnu/drivers/misc/cxl/pci.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/misc/cxl/pci.c	2017-12-20 04:05:01.000000000 -0500
@@ -138,6 +138,7 @@ static const struct pci_device_id cxl_pc
 	{ PCI_DEVICE(PCI_VENDOR_ID_IBM, 0x0477), },
 	{ PCI_DEVICE(PCI_VENDOR_ID_IBM, 0x044b), },
 	{ PCI_DEVICE(PCI_VENDOR_ID_IBM, 0x04cf), },
+	{ PCI_DEVICE(PCI_VENDOR_ID_IBM, 0x0601), },
 	{ PCI_DEVICE_CLASS(0x120000, ~0), },
 
 	{ }
@@ -414,7 +415,7 @@ static int cxl_setup_psl_timebase(struct
 		delta = mftb() - psl_tb;
 		if (delta < 0)
 			delta = -delta;
-	} while (cputime_to_usecs(delta) > 16);
+	} while (tb_to_ns(delta) > 16000);
 
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/misc/cxl/vphb.c linux-libre-4.4.107-gnu/drivers/misc/cxl/vphb.c
--- linux-libre-4.4-gnu/drivers/misc/cxl/vphb.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/misc/cxl/vphb.c	2017-12-20 04:05:01.000000000 -0500
@@ -203,7 +203,7 @@ static int cxl_pcie_write_config(struct
 	mask <<= shift;
 	val <<= shift;
 
-	v = (in_le32(ioaddr) & ~mask) || (val & mask);
+	v = (in_le32(ioaddr) & ~mask) | (val & mask);
 
 	out_le32(ioaddr, v);
 	return PCIBIOS_SUCCESSFUL;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/misc/eeprom/at24.c linux-libre-4.4.107-gnu/drivers/misc/eeprom/at24.c
--- linux-libre-4.4-gnu/drivers/misc/eeprom/at24.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/misc/eeprom/at24.c	2017-12-20 04:05:01.000000000 -0500
@@ -257,6 +257,9 @@ static ssize_t at24_read(struct at24_dat
 	if (unlikely(!count))
 		return count;
 
+	if (off + count > at24->chip.byte_len)
+		return -EINVAL;
+
 	/*
 	 * Read data from chip, protecting against concurrent updates
 	 * from this host, but not from other I2C masters.
@@ -311,6 +314,9 @@ static ssize_t at24_eeprom_write(struct
 	unsigned long timeout, write_time;
 	unsigned next_page;
 
+	if (offset + count > at24->chip.byte_len)
+		return -EINVAL;
+
 	/* Get corresponding I2C address and adjust offset */
 	client = at24_translate_offset(at24, &offset);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/misc/enclosure.c linux-libre-4.4.107-gnu/drivers/misc/enclosure.c
--- linux-libre-4.4-gnu/drivers/misc/enclosure.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/misc/enclosure.c	2017-12-20 04:05:01.000000000 -0500
@@ -375,6 +375,7 @@ int enclosure_add_device(struct enclosur
 			 struct device *dev)
 {
 	struct enclosure_component *cdev;
+	int err;
 
 	if (!edev || component >= edev->components)
 		return -EINVAL;
@@ -384,12 +385,17 @@ int enclosure_add_device(struct enclosur
 	if (cdev->dev == dev)
 		return -EEXIST;
 
-	if (cdev->dev)
+	if (cdev->dev) {
 		enclosure_remove_links(cdev);
-
-	put_device(cdev->dev);
+		put_device(cdev->dev);
+	}
 	cdev->dev = get_device(dev);
-	return enclosure_add_links(cdev);
+	err = enclosure_add_links(cdev);
+	if (err) {
+		put_device(cdev->dev);
+		cdev->dev = NULL;
+	}
+	return err;
 }
 EXPORT_SYMBOL_GPL(enclosure_add_device);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/misc/genwqe/card_utils.c linux-libre-4.4.107-gnu/drivers/misc/genwqe/card_utils.c
--- linux-libre-4.4-gnu/drivers/misc/genwqe/card_utils.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/misc/genwqe/card_utils.c	2017-12-20 04:05:01.000000000 -0500
@@ -352,17 +352,27 @@ int genwqe_alloc_sync_sgl(struct genwqe_
 		if (copy_from_user(sgl->lpage, user_addr + user_size -
 				   sgl->lpage_size, sgl->lpage_size)) {
 			rc = -EFAULT;
-			goto err_out1;
+			goto err_out2;
 		}
 	}
 	return 0;
 
+ err_out2:
+	__genwqe_free_consistent(cd, PAGE_SIZE, sgl->lpage,
+				 sgl->lpage_dma_addr);
+	sgl->lpage = NULL;
+	sgl->lpage_dma_addr = 0;
  err_out1:
 	__genwqe_free_consistent(cd, PAGE_SIZE, sgl->fpage,
 				 sgl->fpage_dma_addr);
+	sgl->fpage = NULL;
+	sgl->fpage_dma_addr = 0;
  err_out:
 	__genwqe_free_consistent(cd, sgl->sgl_size, sgl->sgl,
 				 sgl->sgl_dma_addr);
+	sgl->sgl = NULL;
+	sgl->sgl_dma_addr = 0;
+	sgl->sgl_size = 0;
 	return -ENOMEM;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/misc/Kconfig linux-libre-4.4.107-gnu/drivers/misc/Kconfig
--- linux-libre-4.4-gnu/drivers/misc/Kconfig	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/misc/Kconfig	2017-12-20 04:05:01.000000000 -0500
@@ -439,7 +439,7 @@ config ARM_CHARLCD
 	  still useful.
 
 config BMP085
-	bool
+	tristate
 	depends on SYSFS
 
 config BMP085_I2C
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/misc/mei/amthif.c linux-libre-4.4.107-gnu/drivers/misc/mei/amthif.c
--- linux-libre-4.4-gnu/drivers/misc/mei/amthif.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/misc/mei/amthif.c	2017-12-20 04:05:01.000000000 -0500
@@ -417,8 +417,10 @@ int mei_amthif_irq_read_msg(struct mei_c
 
 	dev = cl->dev;
 
-	if (dev->iamthif_state != MEI_IAMTHIF_READING)
+	if (dev->iamthif_state != MEI_IAMTHIF_READING) {
+		mei_irq_discard_msg(dev, mei_hdr);
 		return 0;
+	}
 
 	ret = mei_cl_irq_read_msg(cl, mei_hdr, cmpl_list);
 	if (ret)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/misc/mei/bus.c linux-libre-4.4.107-gnu/drivers/misc/mei/bus.c
--- linux-libre-4.4-gnu/drivers/misc/mei/bus.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/misc/mei/bus.c	2017-12-20 04:05:01.000000000 -0500
@@ -53,6 +53,11 @@ ssize_t __mei_cl_send(struct mei_cl *cl,
 	bus = cl->dev;
 
 	mutex_lock(&bus->device_lock);
+	if (bus->dev_state != MEI_DEV_ENABLED) {
+		rets = -ENODEV;
+		goto out;
+	}
+
 	if (!mei_cl_is_connected(cl)) {
 		rets = -ENODEV;
 		goto out;
@@ -109,6 +114,10 @@ ssize_t __mei_cl_recv(struct mei_cl *cl,
 	bus = cl->dev;
 
 	mutex_lock(&bus->device_lock);
+	if (bus->dev_state != MEI_DEV_ENABLED) {
+		rets = -ENODEV;
+		goto out;
+	}
 
 	cb = mei_cl_read_cb(cl, NULL);
 	if (cb)
@@ -135,7 +144,7 @@ ssize_t __mei_cl_recv(struct mei_cl *cl,
 		mutex_lock(&bus->device_lock);
 
 		if (!mei_cl_is_connected(cl)) {
-			rets = -EBUSY;
+			rets = -ENODEV;
 			goto out;
 		}
 	}
@@ -213,17 +222,23 @@ EXPORT_SYMBOL_GPL(mei_cldev_recv);
 static void mei_cl_bus_event_work(struct work_struct *work)
 {
 	struct mei_cl_device *cldev;
+	struct mei_device *bus;
 
 	cldev = container_of(work, struct mei_cl_device, event_work);
 
+	bus = cldev->bus;
+
 	if (cldev->event_cb)
 		cldev->event_cb(cldev, cldev->events, cldev->event_context);
 
 	cldev->events = 0;
 
 	/* Prepare for the next read */
-	if (cldev->events_mask & BIT(MEI_CL_EVENT_RX))
+	if (cldev->events_mask & BIT(MEI_CL_EVENT_RX)) {
+		mutex_lock(&bus->device_lock);
 		mei_cl_read_start(cldev->cl, 0, NULL);
+		mutex_unlock(&bus->device_lock);
+	}
 }
 
 /**
@@ -287,6 +302,7 @@ int mei_cldev_register_event_cb(struct m
 				unsigned long events_mask,
 				mei_cldev_event_cb_t event_cb, void *context)
 {
+	struct mei_device *bus = cldev->bus;
 	int ret;
 
 	if (cldev->event_cb)
@@ -299,15 +315,17 @@ int mei_cldev_register_event_cb(struct m
 	INIT_WORK(&cldev->event_work, mei_cl_bus_event_work);
 
 	if (cldev->events_mask & BIT(MEI_CL_EVENT_RX)) {
+		mutex_lock(&bus->device_lock);
 		ret = mei_cl_read_start(cldev->cl, 0, NULL);
+		mutex_unlock(&bus->device_lock);
 		if (ret && ret != -EBUSY)
 			return ret;
 	}
 
 	if (cldev->events_mask & BIT(MEI_CL_EVENT_NOTIF)) {
-		mutex_lock(&cldev->cl->dev->device_lock);
+		mutex_lock(&bus->device_lock);
 		ret = mei_cl_notify_request(cldev->cl, NULL, event_cb ? 1 : 0);
-		mutex_unlock(&cldev->cl->dev->device_lock);
+		mutex_unlock(&bus->device_lock);
 		if (ret)
 			return ret;
 	}
@@ -381,7 +399,7 @@ bool mei_cldev_enabled(struct mei_cl_dev
 EXPORT_SYMBOL_GPL(mei_cldev_enabled);
 
 /**
- * mei_cldev_enable_device - enable me client device
+ * mei_cldev_enable - enable me client device
  *     create connection with me client
  *
  * @cldev: me client device
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/misc/mei/bus-fixup.c linux-libre-4.4.107-gnu/drivers/misc/mei/bus-fixup.c
--- linux-libre-4.4-gnu/drivers/misc/mei/bus-fixup.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/misc/mei/bus-fixup.c	2017-12-20 04:05:01.000000000 -0500
@@ -151,7 +151,7 @@ static int mei_nfc_if_version(struct mei
 
 	ret = 0;
 	bytes_recv = __mei_cl_recv(cl, (u8 *)reply, if_version_length);
-	if (bytes_recv < 0 || bytes_recv < sizeof(struct mei_nfc_reply)) {
+	if (bytes_recv < if_version_length) {
 		dev_err(bus->dev, "Could not read IF version\n");
 		ret = -EIO;
 		goto err;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/misc/mei/client.c linux-libre-4.4.107-gnu/drivers/misc/mei/client.c
--- linux-libre-4.4-gnu/drivers/misc/mei/client.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/misc/mei/client.c	2017-12-20 04:05:01.000000000 -0500
@@ -698,7 +698,7 @@ void mei_host_client_init(struct work_st
 
 	pm_runtime_mark_last_busy(dev->dev);
 	dev_dbg(dev->dev, "rpm: autosuspend\n");
-	pm_runtime_autosuspend(dev->dev);
+	pm_request_autosuspend(dev->dev);
 }
 
 /**
@@ -1300,6 +1300,9 @@ int mei_cl_notify_request(struct mei_cl
 		return -EOPNOTSUPP;
 	}
 
+	if (!mei_cl_is_connected(cl))
+		return -ENODEV;
+
 	rets = pm_runtime_get(dev->dev);
 	if (rets < 0 && rets != -EINPROGRESS) {
 		pm_runtime_put_noidle(dev->dev);
@@ -1735,6 +1738,10 @@ void mei_cl_complete(struct mei_cl *cl,
 			wake_up(&cl->wait);
 
 		break;
+	case MEI_FOP_DISCONNECT_RSP:
+		mei_io_cb_free(cb);
+		mei_cl_set_disconnected(cl);
+		break;
 	default:
 		BUG_ON(0);
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/misc/mei/hbm.c linux-libre-4.4.107-gnu/drivers/misc/mei/hbm.c
--- linux-libre-4.4-gnu/drivers/misc/mei/hbm.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/misc/mei/hbm.c	2017-12-20 04:05:01.000000000 -0500
@@ -873,8 +873,7 @@ static int mei_hbm_fw_disconnect_req(str
 		cb = mei_io_cb_init(cl, MEI_FOP_DISCONNECT_RSP, NULL);
 		if (!cb)
 			return -ENOMEM;
-		cl_dbg(dev, cl, "add disconnect response as first\n");
-		list_add(&cb->list, &dev->ctrl_wr_list.list);
+		list_add_tail(&cb->list, &dev->ctrl_wr_list.list);
 	}
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/misc/mei/hw-me.c linux-libre-4.4.107-gnu/drivers/misc/mei/hw-me.c
--- linux-libre-4.4-gnu/drivers/misc/mei/hw-me.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/misc/mei/hw-me.c	2017-12-20 04:05:01.000000000 -0500
@@ -1258,8 +1258,14 @@ static bool mei_me_fw_type_nm(struct pci
 static bool mei_me_fw_type_sps(struct pci_dev *pdev)
 {
 	u32 reg;
-	/* Read ME FW Status check for SPS Firmware */
-	pci_read_config_dword(pdev, PCI_CFG_HFS_1, &reg);
+	unsigned int devfn;
+
+	/*
+	 * Read ME FW Status register to check for SPS Firmware
+	 * The SPS FW is only signaled in pci function 0
+	 */
+	devfn = PCI_DEVFN(PCI_SLOT(pdev->devfn), 0);
+	pci_bus_read_config_dword(pdev->bus, devfn, PCI_CFG_HFS_1, &reg);
 	/* if bits [19:16] = 15, running SPS Firmware */
 	return (reg & 0xf0000) == 0xf0000;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/misc/mei/hw-me-regs.h linux-libre-4.4.107-gnu/drivers/misc/mei/hw-me-regs.h
--- linux-libre-4.4-gnu/drivers/misc/mei/hw-me-regs.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/misc/mei/hw-me-regs.h	2017-12-20 04:05:01.000000000 -0500
@@ -121,6 +121,15 @@
 #define MEI_DEV_ID_SPT_2      0x9D3B  /* Sunrise Point 2 */
 #define MEI_DEV_ID_SPT_H      0xA13A  /* Sunrise Point H */
 #define MEI_DEV_ID_SPT_H_2    0xA13B  /* Sunrise Point H 2 */
+
+#define MEI_DEV_ID_KBP        0xA2BA  /* Kaby Point */
+#define MEI_DEV_ID_KBP_2      0xA2BB  /* Kaby Point 2 */
+
+#define MEI_DEV_ID_LBG        0xA1BA  /* Lewisburg (SPT) */
+
+#define MEI_DEV_ID_BXT_M      0x1A9A  /* Broxton M */
+#define MEI_DEV_ID_APL_I      0x5A9A  /* Apollo Lake I */
+
 /*
  * MEI HW Section
  */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/misc/mei/hw-txe.c linux-libre-4.4.107-gnu/drivers/misc/mei/hw-txe.c
--- linux-libre-4.4-gnu/drivers/misc/mei/hw-txe.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/misc/mei/hw-txe.c	2017-12-20 04:05:01.000000000 -0500
@@ -972,11 +972,13 @@ static bool mei_txe_check_and_ack_intrs(
 	hisr = mei_txe_br_reg_read(hw, HISR_REG);
 
 	aliveness = mei_txe_aliveness_get(dev);
-	if (hhisr & IPC_HHIER_SEC && aliveness)
+	if (hhisr & IPC_HHIER_SEC && aliveness) {
 		ipc_isr = mei_txe_sec_reg_read_silent(hw,
 				SEC_IPC_HOST_INT_STATUS_REG);
-	else
+	} else {
 		ipc_isr = 0;
+		hhisr &= ~IPC_HHIER_SEC;
+	}
 
 	generated = generated ||
 		(hisr & HISR_INT_STS_MSK) ||
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/misc/mei/interrupt.c linux-libre-4.4.107-gnu/drivers/misc/mei/interrupt.c
--- linux-libre-4.4-gnu/drivers/misc/mei/interrupt.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/misc/mei/interrupt.c	2017-12-20 04:05:01.000000000 -0500
@@ -76,7 +76,6 @@ static inline int mei_cl_hbm_equal(struc
  * @dev: mei device
  * @hdr: message header
  */
-static inline
 void mei_irq_discard_msg(struct mei_device *dev, struct mei_msg_hdr *hdr)
 {
 	/*
@@ -184,10 +183,7 @@ static int mei_cl_irq_disconnect_rsp(str
 		return -EMSGSIZE;
 
 	ret = mei_hbm_cl_disconnect_rsp(dev, cl);
-	mei_cl_set_disconnected(cl);
-	mei_io_cb_free(cb);
-	mei_me_cl_put(cl->me_cl);
-	cl->me_cl = NULL;
+	list_move_tail(&cb->list, &cmpl_list->list);
 
 	return ret;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/misc/mei/main.c linux-libre-4.4.107-gnu/drivers/misc/mei/main.c
--- linux-libre-4.4-gnu/drivers/misc/mei/main.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/misc/mei/main.c	2017-12-20 04:05:01.000000000 -0500
@@ -207,7 +207,7 @@ static ssize_t mei_read(struct file *fil
 
 		mutex_lock(&dev->device_lock);
 		if (!mei_cl_is_connected(cl)) {
-			rets = -EBUSY;
+			rets = -ENODEV;
 			goto out;
 		}
 	}
@@ -458,7 +458,11 @@ static int mei_ioctl_client_notify_reque
 {
 	struct mei_cl *cl = file->private_data;
 
-	return mei_cl_notify_request(cl, file, request);
+	if (request != MEI_HBM_NOTIFICATION_START &&
+	    request != MEI_HBM_NOTIFICATION_STOP)
+		return -EINVAL;
+
+	return mei_cl_notify_request(cl, file, (u8)request);
 }
 
 /**
@@ -657,7 +661,9 @@ out:
  * @file: pointer to file structure
  * @band: band bitmap
  *
- * Return: poll mask
+ * Return: negative on error,
+ *         0 if it did no changes,
+ *         and positive a process was added or deleted
  */
 static int mei_fasync(int fd, struct file *file, int band)
 {
@@ -665,7 +671,7 @@ static int mei_fasync(int fd, struct fil
 	struct mei_cl *cl = file->private_data;
 
 	if (!mei_cl_is_connected(cl))
-		return POLLERR;
+		return -ENODEV;
 
 	return fasync_helper(fd, file, band, &cl->ev_async);
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/misc/mei/mei_dev.h linux-libre-4.4.107-gnu/drivers/misc/mei/mei_dev.h
--- linux-libre-4.4-gnu/drivers/misc/mei/mei_dev.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/misc/mei/mei_dev.h	2017-12-20 04:05:01.000000000 -0500
@@ -782,6 +782,8 @@ bool mei_hbuf_acquire(struct mei_device
 
 bool mei_write_is_idle(struct mei_device *dev);
 
+void mei_irq_discard_msg(struct mei_device *dev, struct mei_msg_hdr *hdr);
+
 #if IS_ENABLED(CONFIG_DEBUG_FS)
 int mei_dbgfs_register(struct mei_device *dev, const char *name);
 void mei_dbgfs_deregister(struct mei_device *dev);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/misc/mei/pci-me.c linux-libre-4.4.107-gnu/drivers/misc/mei/pci-me.c
--- linux-libre-4.4-gnu/drivers/misc/mei/pci-me.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/misc/mei/pci-me.c	2017-12-20 04:05:01.000000000 -0500
@@ -84,8 +84,15 @@ static const struct pci_device_id mei_me
 
 	{MEI_PCI_DEVICE(MEI_DEV_ID_SPT, mei_me_pch8_cfg)},
 	{MEI_PCI_DEVICE(MEI_DEV_ID_SPT_2, mei_me_pch8_cfg)},
-	{MEI_PCI_DEVICE(MEI_DEV_ID_SPT_H, mei_me_pch8_cfg)},
-	{MEI_PCI_DEVICE(MEI_DEV_ID_SPT_H_2, mei_me_pch8_cfg)},
+	{MEI_PCI_DEVICE(MEI_DEV_ID_SPT_H, mei_me_pch8_sps_cfg)},
+	{MEI_PCI_DEVICE(MEI_DEV_ID_SPT_H_2, mei_me_pch8_sps_cfg)},
+	{MEI_PCI_DEVICE(MEI_DEV_ID_LBG, mei_me_pch8_cfg)},
+
+	{MEI_PCI_DEVICE(MEI_DEV_ID_KBP, mei_me_pch8_cfg)},
+	{MEI_PCI_DEVICE(MEI_DEV_ID_KBP_2, mei_me_pch8_cfg)},
+
+	{MEI_PCI_DEVICE(MEI_DEV_ID_BXT_M, mei_me_pch8_cfg)},
+	{MEI_PCI_DEVICE(MEI_DEV_ID_APL_I, mei_me_pch8_cfg)},
 
 	/* required last entry */
 	{0, }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/misc/mic/scif/scif_rma.c linux-libre-4.4.107-gnu/drivers/misc/mic/scif/scif_rma.c
--- linux-libre-4.4-gnu/drivers/misc/mic/scif/scif_rma.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/misc/mic/scif/scif_rma.c	2017-12-20 04:05:01.000000000 -0500
@@ -1511,7 +1511,7 @@ off_t scif_register_pinned_pages(scif_ep
 	if ((map_flags & SCIF_MAP_FIXED) &&
 	    ((ALIGN(offset, PAGE_SIZE) != offset) ||
 	    (offset < 0) ||
-	    (offset + (off_t)len < offset)))
+	    (len > LONG_MAX - offset)))
 		return -EINVAL;
 
 	might_sleep();
@@ -1614,7 +1614,7 @@ off_t scif_register(scif_epd_t epd, void
 	if ((map_flags & SCIF_MAP_FIXED) &&
 	    ((ALIGN(offset, PAGE_SIZE) != offset) ||
 	    (offset < 0) ||
-	    (offset + (off_t)len < offset)))
+	    (len > LONG_MAX - offset)))
 		return -EINVAL;
 
 	/* Unsupported protection requested */
@@ -1732,7 +1732,8 @@ scif_unregister(scif_epd_t epd, off_t of
 
 	/* Offset is not page aligned or offset+len wraps around */
 	if ((ALIGN(offset, PAGE_SIZE) != offset) ||
-	    (offset + (off_t)len < offset))
+	    (offset < 0) ||
+	    (len > LONG_MAX - offset))
 		return -EINVAL;
 
 	err = scif_verify_epd(ep);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/mmc/card/block.c linux-libre-4.4.107-gnu/drivers/mmc/card/block.c
--- linux-libre-4.4-gnu/drivers/mmc/card/block.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/mmc/card/block.c	2017-12-20 04:05:01.000000000 -0500
@@ -596,6 +596,14 @@ static int mmc_blk_ioctl_cmd(struct bloc
 	struct mmc_card *card;
 	int err = 0, ioc_err = 0;
 
+	/*
+	 * The caller must have CAP_SYS_RAWIO, and must be calling this on the
+	 * whole block device, not on a partition.  This prevents overspray
+	 * between sibling partitions.
+	 */
+	if ((!capable(CAP_SYS_RAWIO)) || (bdev != bdev->bd_contains))
+		return -EPERM;
+
 	idata = mmc_blk_ioctl_copy_from_user(ic_ptr);
 	if (IS_ERR(idata))
 		return PTR_ERR(idata);
@@ -638,6 +646,14 @@ static int mmc_blk_ioctl_multi_cmd(struc
 	int i, err = 0, ioc_err = 0;
 	__u64 num_of_cmds;
 
+	/*
+	 * The caller must have CAP_SYS_RAWIO, and must be calling this on the
+	 * whole block device, not on a partition.  This prevents overspray
+	 * between sibling partitions.
+	 */
+	if ((!capable(CAP_SYS_RAWIO)) || (bdev != bdev->bd_contains))
+		return -EPERM;
+
 	if (copy_from_user(&num_of_cmds, &user->num_of_cmds,
 			   sizeof(num_of_cmds)))
 		return -EFAULT;
@@ -693,14 +709,6 @@ cmd_err:
 static int mmc_blk_ioctl(struct block_device *bdev, fmode_t mode,
 	unsigned int cmd, unsigned long arg)
 {
-	/*
-	 * The caller must have CAP_SYS_RAWIO, and must be calling this on the
-	 * whole block device, not on a partition.  This prevents overspray
-	 * between sibling partitions.
-	 */
-	if ((!capable(CAP_SYS_RAWIO)) || (bdev != bdev->bd_contains))
-		return -EPERM;
-
 	switch (cmd) {
 	case MMC_IOC_CMD:
 		return mmc_blk_ioctl_cmd(bdev,
@@ -1747,7 +1755,7 @@ static void mmc_blk_packed_hdr_wrq_prep(
 	struct mmc_blk_data *md = mq->data;
 	struct mmc_packed *packed = mqrq->packed;
 	bool do_rel_wr, do_data_tag;
-	u32 *packed_cmd_hdr;
+	__le32 *packed_cmd_hdr;
 	u8 hdr_blocks;
 	u8 i = 1;
 
@@ -1759,8 +1767,8 @@ static void mmc_blk_packed_hdr_wrq_prep(
 
 	packed_cmd_hdr = packed->cmd_hdr;
 	memset(packed_cmd_hdr, 0, sizeof(packed->cmd_hdr));
-	packed_cmd_hdr[0] = (packed->nr_entries << 16) |
-		(PACKED_CMD_WR << 8) | PACKED_CMD_VER;
+	packed_cmd_hdr[0] = cpu_to_le32((packed->nr_entries << 16) |
+		(PACKED_CMD_WR << 8) | PACKED_CMD_VER);
 	hdr_blocks = mmc_large_sector(card) ? 8 : 1;
 
 	/*
@@ -1774,14 +1782,14 @@ static void mmc_blk_packed_hdr_wrq_prep(
 			((brq->data.blocks * brq->data.blksz) >=
 			 card->ext_csd.data_tag_unit_size);
 		/* Argument of CMD23 */
-		packed_cmd_hdr[(i * 2)] =
+		packed_cmd_hdr[(i * 2)] = cpu_to_le32(
 			(do_rel_wr ? MMC_CMD23_ARG_REL_WR : 0) |
 			(do_data_tag ? MMC_CMD23_ARG_TAG_REQ : 0) |
-			blk_rq_sectors(prq);
+			blk_rq_sectors(prq));
 		/* Argument of CMD18 or CMD25 */
-		packed_cmd_hdr[((i * 2)) + 1] =
+		packed_cmd_hdr[((i * 2)) + 1] = cpu_to_le32(
 			mmc_card_blockaddr(card) ?
-			blk_rq_pos(prq) : blk_rq_pos(prq) << 9;
+			blk_rq_pos(prq) : blk_rq_pos(prq) << 9);
 		packed->blocks += blk_rq_sectors(prq);
 		i++;
 	}
@@ -2271,7 +2279,8 @@ static struct mmc_blk_data *mmc_blk_allo
 	set_capacity(md->disk, size);
 
 	if (mmc_host_cmd23(card->host)) {
-		if (mmc_card_mmc(card) ||
+		if ((mmc_card_mmc(card) &&
+		     card->csd.mmca_vsn >= CSD_SPEC_VER_3) ||
 		    (mmc_card_sd(card) &&
 		     card->scr.cmds & SD_SCR_CMD23_SUPPORT))
 			md->flags |= MMC_BLK_CMD23;
@@ -2506,11 +2515,12 @@ static const struct mmc_fixup blk_fixups
 		  MMC_QUIRK_BLK_NO_CMD23),
 
 	/*
-	 * Some Micron MMC cards needs longer data read timeout than
-	 * indicated in CSD.
+	 * Some MMC cards need longer data read timeout than indicated in CSD.
 	 */
 	MMC_FIXUP(CID_NAME_ANY, CID_MANFID_MICRON, 0x200, add_quirk_mmc,
 		  MMC_QUIRK_LONG_READ_TIME),
+	MMC_FIXUP("008GE0", CID_MANFID_TOSHIBA, CID_OEMID_ANY, add_quirk_mmc,
+		  MMC_QUIRK_LONG_READ_TIME),
 
 	/*
 	 * On these Samsung MoviNAND parts, performing secure erase or
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/mmc/card/mmc_test.c linux-libre-4.4.107-gnu/drivers/mmc/card/mmc_test.c
--- linux-libre-4.4-gnu/drivers/mmc/card/mmc_test.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/mmc/card/mmc_test.c	2017-12-20 04:05:01.000000000 -0500
@@ -791,7 +791,7 @@ static int mmc_test_nonblock_transfer(st
 	struct mmc_async_req *cur_areq = &test_areq[0].areq;
 	struct mmc_async_req *other_areq = &test_areq[1].areq;
 	int i;
-	int ret;
+	int ret = RESULT_OK;
 
 	test_areq[0].test = test;
 	test_areq[1].test = test;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/mmc/card/queue.h linux-libre-4.4.107-gnu/drivers/mmc/card/queue.h
--- linux-libre-4.4-gnu/drivers/mmc/card/queue.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/mmc/card/queue.h	2017-12-20 04:05:01.000000000 -0500
@@ -25,7 +25,7 @@ enum mmc_packed_type {
 
 struct mmc_packed {
 	struct list_head	list;
-	u32			cmd_hdr[1024];
+	__le32			cmd_hdr[1024];
 	unsigned int		blocks;
 	u8			nr_entries;
 	u8			retries;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/mmc/core/bus.c linux-libre-4.4.107-gnu/drivers/mmc/core/bus.c
--- linux-libre-4.4-gnu/drivers/mmc/core/bus.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/mmc/core/bus.c	2017-12-20 04:05:01.000000000 -0500
@@ -155,6 +155,9 @@ static int mmc_bus_suspend(struct device
 		return ret;
 
 	ret = host->bus_ops->suspend(host);
+	if (ret)
+		pm_generic_resume(dev);
+
 	return ret;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/mmc/core/core.c linux-libre-4.4.107-gnu/drivers/mmc/core/core.c
--- linux-libre-4.4-gnu/drivers/mmc/core/core.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/mmc/core/core.c	2017-12-20 04:05:01.000000000 -0500
@@ -874,11 +874,11 @@ void mmc_set_data_timeout(struct mmc_dat
 	/*
 	 * Some cards require longer data read timeout than indicated in CSD.
 	 * Address this by setting the read timeout to a "reasonably high"
-	 * value. For the cards tested, 300ms has proven enough. If necessary,
+	 * value. For the cards tested, 600ms has proven enough. If necessary,
 	 * this value can be increased if other problematic cards require this.
 	 */
 	if (mmc_card_long_read_time(card) && data->flags & MMC_DATA_READ) {
-		data->timeout_ns = 300000000;
+		data->timeout_ns = 600000000;
 		data->timeout_clks = 0;
 	}
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/mmc/core/mmc.c linux-libre-4.4.107-gnu/drivers/mmc/core/mmc.c
--- linux-libre-4.4-gnu/drivers/mmc/core/mmc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/mmc/core/mmc.c	2017-12-20 04:05:01.000000000 -0500
@@ -333,6 +333,9 @@ static void mmc_manage_gp_partitions(str
 	}
 }
 
+/* Minimum partition switch timeout in milliseconds */
+#define MMC_MIN_PART_SWITCH_TIME	300
+
 /*
  * Decode extended CSD.
  */
@@ -397,6 +400,10 @@ static int mmc_decode_ext_csd(struct mmc
 
 		/* EXT_CSD value is in units of 10ms, but we store in ms */
 		card->ext_csd.part_time = 10 * ext_csd[EXT_CSD_PART_SWITCH_TIME];
+		/* Some eMMC set the value too low so set a minimum */
+		if (card->ext_csd.part_time &&
+		    card->ext_csd.part_time < MMC_MIN_PART_SWITCH_TIME)
+			card->ext_csd.part_time = MMC_MIN_PART_SWITCH_TIME;
 
 		/* Sleep / awake timeout in 100ns units */
 		if (sa_shift > 0 && sa_shift <= 0x17)
@@ -1076,8 +1083,7 @@ static int mmc_select_hs400(struct mmc_c
 	mmc_set_clock(host, max_dtr);
 
 	/* Switch card to HS mode */
-	val = EXT_CSD_TIMING_HS |
-	      card->drive_strength << EXT_CSD_DRV_STR_SHIFT;
+	val = EXT_CSD_TIMING_HS;
 	err = __mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
 			   EXT_CSD_HS_TIMING, val,
 			   card->ext_csd.generic_cmd6_time,
@@ -1160,8 +1166,7 @@ int mmc_hs400_to_hs200(struct mmc_card *
 	mmc_set_clock(host, max_dtr);
 
 	/* Switch HS400 to HS DDR */
-	val = EXT_CSD_TIMING_HS |
-	      card->drive_strength << EXT_CSD_DRV_STR_SHIFT;
+	val = EXT_CSD_TIMING_HS;
 	err = __mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_HS_TIMING,
 			   val, card->ext_csd.generic_cmd6_time,
 			   true, send_status, true);
@@ -1576,10 +1581,10 @@ static int mmc_init_card(struct mmc_host
 		err = mmc_select_hs400(card);
 		if (err)
 			goto free_card;
-	} else if (mmc_card_hs(card)) {
+	} else {
 		/* Select the desired bus width optionally */
 		err = mmc_select_bus_width(card);
-		if (!IS_ERR_VALUE(err)) {
+		if (!IS_ERR_VALUE(err) && mmc_card_hs(card)) {
 			err = mmc_select_hs_ddr(card);
 			if (err)
 				goto free_card;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/mmc/core/sd.c linux-libre-4.4.107-gnu/drivers/mmc/core/sd.c
--- linux-libre-4.4-gnu/drivers/mmc/core/sd.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/mmc/core/sd.c	2017-12-20 04:05:01.000000000 -0500
@@ -626,9 +626,9 @@ static int mmc_sd_init_uhs_card(struct m
 	 * SDR104 mode SD-cards. Note that tuning is mandatory for SDR104.
 	 */
 	if (!mmc_host_is_spi(card->host) &&
-		(card->sd_bus_speed == UHS_SDR50_BUS_SPEED ||
-		 card->sd_bus_speed == UHS_DDR50_BUS_SPEED ||
-		 card->sd_bus_speed == UHS_SDR104_BUS_SPEED)) {
+		(card->host->ios.timing == MMC_TIMING_UHS_SDR50 ||
+		 card->host->ios.timing == MMC_TIMING_UHS_DDR50 ||
+		 card->host->ios.timing == MMC_TIMING_UHS_SDR104)) {
 		err = mmc_execute_tuning(card);
 
 		/*
@@ -638,7 +638,7 @@ static int mmc_sd_init_uhs_card(struct m
 		 * difference between v3.00 and 3.01 spec means that CMD19
 		 * tuning is also available for DDR50 mode.
 		 */
-		if (err && card->sd_bus_speed == UHS_DDR50_BUS_SPEED) {
+		if (err && card->host->ios.timing == MMC_TIMING_UHS_DDR50) {
 			pr_warn("%s: ddr50 tuning failed\n",
 				mmc_hostname(card->host));
 			err = 0;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/mmc/core/sdio_bus.c linux-libre-4.4.107-gnu/drivers/mmc/core/sdio_bus.c
--- linux-libre-4.4-gnu/drivers/mmc/core/sdio_bus.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/mmc/core/sdio_bus.c	2017-12-20 04:05:01.000000000 -0500
@@ -266,7 +266,7 @@ static void sdio_release_func(struct dev
 	sdio_free_func_cis(func);
 
 	kfree(func->info);
-
+	kfree(func->tmpbuf);
 	kfree(func);
 }
 
@@ -281,6 +281,16 @@ struct sdio_func *sdio_alloc_func(struct
 	if (!func)
 		return ERR_PTR(-ENOMEM);
 
+	/*
+	 * allocate buffer separately to make sure it's properly aligned for
+	 * DMA usage (incl. 64 bit DMA)
+	 */
+	func->tmpbuf = kmalloc(4, GFP_KERNEL);
+	if (!func->tmpbuf) {
+		kfree(func);
+		return ERR_PTR(-ENOMEM);
+	}
+
 	func->card = card;
 
 	device_initialize(&func->dev);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/mmc/core/sdio.c linux-libre-4.4.107-gnu/drivers/mmc/core/sdio.c
--- linux-libre-4.4-gnu/drivers/mmc/core/sdio.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/mmc/core/sdio.c	2017-12-20 04:05:01.000000000 -0500
@@ -535,8 +535,8 @@ static int mmc_sdio_init_uhs_card(struct
 	 * SDR104 mode SD-cards. Note that tuning is mandatory for SDR104.
 	 */
 	if (!mmc_host_is_spi(card->host) &&
-	    ((card->sw_caps.sd3_bus_mode & SD_MODE_UHS_SDR50) ||
-	     (card->sw_caps.sd3_bus_mode & SD_MODE_UHS_SDR104)))
+	    ((card->host->ios.timing == MMC_TIMING_UHS_SDR50) ||
+	      (card->host->ios.timing == MMC_TIMING_UHS_SDR104)))
 		err = mmc_execute_tuning(card);
 out:
 	return err;
@@ -630,7 +630,7 @@ try_again:
 	 */
 	if (!powered_resume && (rocr & ocr & R4_18V_PRESENT)) {
 		err = mmc_set_signal_voltage(host, MMC_SIGNAL_VOLTAGE_180,
-					ocr);
+					ocr_card);
 		if (err == -EAGAIN) {
 			sdio_reset(host);
 			mmc_go_idle(host);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/mmc/host/dw_mmc.c linux-libre-4.4.107-gnu/drivers/mmc/host/dw_mmc.c
--- linux-libre-4.4-gnu/drivers/mmc/host/dw_mmc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/mmc/host/dw_mmc.c	2017-12-20 04:05:01.000000000 -0500
@@ -699,7 +699,7 @@ static int dw_mci_edmac_start_dma(struct
 	int ret = 0;
 
 	/* Set external dma config: burst size, burst width */
-	cfg.dst_addr = (dma_addr_t)(host->phy_regs + fifo_offset);
+	cfg.dst_addr = host->phy_regs + fifo_offset;
 	cfg.src_addr = cfg.dst_addr;
 	cfg.dst_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
 	cfg.src_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/mmc/host/dw_mmc-pltfm.c linux-libre-4.4.107-gnu/drivers/mmc/host/dw_mmc-pltfm.c
--- linux-libre-4.4-gnu/drivers/mmc/host/dw_mmc-pltfm.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/mmc/host/dw_mmc-pltfm.c	2017-12-20 04:05:01.000000000 -0500
@@ -59,12 +59,13 @@ int dw_mci_pltfm_register(struct platfor
 	host->pdata = pdev->dev.platform_data;
 
 	regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	/* Get registers' physical base address */
-	host->phy_regs = (void *)(regs->start);
 	host->regs = devm_ioremap_resource(&pdev->dev, regs);
 	if (IS_ERR(host->regs))
 		return PTR_ERR(host->regs);
 
+	/* Get registers' physical base address */
+	host->phy_regs = regs->start;
+
 	platform_set_drvdata(pdev, host);
 	return dw_mci_probe(host);
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/mmc/host/Kconfig linux-libre-4.4.107-gnu/drivers/mmc/host/Kconfig
--- linux-libre-4.4-gnu/drivers/mmc/host/Kconfig	2016-01-10 21:13:40.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/mmc/host/Kconfig	2017-12-20 11:42:16.000000000 -0500
@@ -97,6 +97,7 @@ config MMC_RICOH_MMC
 config MMC_SDHCI_ACPI
 	tristate "SDHCI support for ACPI enumerated SDHCI controllers"
 	depends on MMC_SDHCI && ACPI
+	select IOSF_MBI if X86
 	help
 	  This selects support for ACPI enumerated SDHCI controllers,
 	  identified by ACPI Compatibility ID PNP0D40 or specific
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/mmc/host/mmci.c linux-libre-4.4.107-gnu/drivers/mmc/host/mmci.c
--- linux-libre-4.4-gnu/drivers/mmc/host/mmci.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/mmc/host/mmci.c	2017-12-20 04:05:01.000000000 -0500
@@ -1886,7 +1886,7 @@ static struct amba_id mmci_ids[] = {
 	{
 		.id     = 0x00280180,
 		.mask   = 0x00ffffff,
-		.data	= &variant_u300,
+		.data	= &variant_nomadik,
 	},
 	{
 		.id     = 0x00480180,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/mmc/host/mmc_spi.c linux-libre-4.4.107-gnu/drivers/mmc/host/mmc_spi.c
--- linux-libre-4.4-gnu/drivers/mmc/host/mmc_spi.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/mmc/host/mmc_spi.c	2017-12-20 04:05:01.000000000 -0500
@@ -1436,6 +1436,12 @@ static int mmc_spi_probe(struct spi_devi
 					     host->pdata->cd_debounce);
 		if (status != 0)
 			goto fail_add_host;
+
+		/* The platform has a CD GPIO signal that may support
+		 * interrupts, so let mmc_gpiod_request_cd_irq() decide
+		 * if polling is needed or not.
+		 */
+		mmc->caps &= ~MMC_CAP_NEEDS_POLL;
 		mmc_gpiod_request_cd_irq(mmc);
 	}
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/mmc/host/mtk-sd.c linux-libre-4.4.107-gnu/drivers/mmc/host/mtk-sd.c
--- linux-libre-4.4-gnu/drivers/mmc/host/mtk-sd.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/mmc/host/mtk-sd.c	2017-12-20 04:05:01.000000000 -0500
@@ -570,7 +570,7 @@ static void msdc_set_mclk(struct msdc_ho
 		}
 	}
 	sdr_set_field(host->base + MSDC_CFG, MSDC_CFG_CKMOD | MSDC_CFG_CKDIV,
-			(mode << 8) | (div % 0xff));
+		      (mode << 8) | div);
 	sdr_set_bits(host->base + MSDC_CFG, MSDC_CFG_CKPDN);
 	while (!(readl(host->base + MSDC_CFG) & MSDC_CFG_CKSTB))
 		cpu_relax();
@@ -1540,7 +1540,7 @@ static int msdc_drv_probe(struct platfor
 	host->src_clk_freq = clk_get_rate(host->src_clk);
 	/* Set host parameters to mmc */
 	mmc->ops = &mt_msdc_ops;
-	mmc->f_min = host->src_clk_freq / (4 * 255);
+	mmc->f_min = DIV_ROUND_UP(host->src_clk_freq, 4 * 255);
 
 	mmc->caps |= MMC_CAP_ERASE | MMC_CAP_CMD23;
 	mmc->caps |= MMC_CAP_RUNTIME_RESUME;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/mmc/host/mxs-mmc.c linux-libre-4.4.107-gnu/drivers/mmc/host/mxs-mmc.c
--- linux-libre-4.4-gnu/drivers/mmc/host/mxs-mmc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/mmc/host/mxs-mmc.c	2017-12-20 04:05:01.000000000 -0500
@@ -309,6 +309,9 @@ static void mxs_mmc_ac(struct mxs_mmc_ho
 	cmd0 = BF_SSP(cmd->opcode, CMD0_CMD);
 	cmd1 = cmd->arg;
 
+	if (cmd->opcode == MMC_STOP_TRANSMISSION)
+		cmd0 |= BM_SSP_CMD0_APPEND_8CYC;
+
 	if (host->sdio_irq_en) {
 		ctrl0 |= BM_SSP_CTRL0_SDIO_IRQ_CHECK;
 		cmd0 |= BM_SSP_CMD0_CONT_CLKING_EN | BM_SSP_CMD0_SLOW_CLKING_EN;
@@ -417,8 +420,7 @@ static void mxs_mmc_adtc(struct mxs_mmc_
 		       ssp->base + HW_SSP_BLOCK_SIZE);
 	}
 
-	if ((cmd->opcode == MMC_STOP_TRANSMISSION) ||
-	    (cmd->opcode == SD_IO_RW_EXTENDED))
+	if (cmd->opcode == SD_IO_RW_EXTENDED)
 		cmd0 |= BM_SSP_CMD0_APPEND_8CYC;
 
 	cmd1 = cmd->arg;
@@ -661,13 +663,13 @@ static int mxs_mmc_probe(struct platform
 
 	platform_set_drvdata(pdev, mmc);
 
+	spin_lock_init(&host->lock);
+
 	ret = devm_request_irq(&pdev->dev, irq_err, mxs_mmc_irq_handler, 0,
 			       dev_name(&pdev->dev), host);
 	if (ret)
 		goto out_free_dma;
 
-	spin_lock_init(&host->lock);
-
 	ret = mmc_add_host(mmc);
 	if (ret)
 		goto out_free_dma;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/mmc/host/pxamci.c linux-libre-4.4.107-gnu/drivers/mmc/host/pxamci.c
--- linux-libre-4.4-gnu/drivers/mmc/host/pxamci.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/mmc/host/pxamci.c	2017-12-20 04:05:01.000000000 -0500
@@ -798,14 +798,16 @@ static int pxamci_probe(struct platform_
 		gpio_direction_output(gpio_power,
 				      host->pdata->gpio_power_invert);
 	}
-	if (gpio_is_valid(gpio_ro))
+	if (gpio_is_valid(gpio_ro)) {
 		ret = mmc_gpio_request_ro(mmc, gpio_ro);
-	if (ret) {
-		dev_err(&pdev->dev, "Failed requesting gpio_ro %d\n", gpio_ro);
-		goto out;
-	} else {
-		mmc->caps |= host->pdata->gpio_card_ro_invert ?
-			0 : MMC_CAP2_RO_ACTIVE_HIGH;
+		if (ret) {
+			dev_err(&pdev->dev, "Failed requesting gpio_ro %d\n",
+				gpio_ro);
+			goto out;
+		} else {
+			mmc->caps2 |= host->pdata->gpio_card_ro_invert ?
+				0 : MMC_CAP2_RO_ACTIVE_HIGH;
+		}
 	}
 
 	if (gpio_is_valid(gpio_cd))
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/mmc/host/rtsx_usb_sdmmc.c linux-libre-4.4.107-gnu/drivers/mmc/host/rtsx_usb_sdmmc.c
--- linux-libre-4.4-gnu/drivers/mmc/host/rtsx_usb_sdmmc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/mmc/host/rtsx_usb_sdmmc.c	2017-12-20 04:05:01.000000000 -0500
@@ -1138,11 +1138,6 @@ static void sdmmc_set_ios(struct mmc_hos
 	dev_dbg(sdmmc_dev(host), "%s\n", __func__);
 	mutex_lock(&ucr->dev_mutex);
 
-	if (rtsx_usb_card_exclusive_check(ucr, RTSX_USB_SD_CARD)) {
-		mutex_unlock(&ucr->dev_mutex);
-		return;
-	}
-
 	sd_set_power_mode(host, ios->power_mode);
 	sd_set_bus_width(host, ios->bus_width);
 	sd_set_timing(host, ios->timing, &host->ddr_mode);
@@ -1314,6 +1309,7 @@ static void rtsx_usb_update_led(struct w
 		container_of(work, struct rtsx_usb_sdmmc, led_work);
 	struct rtsx_ucr *ucr = host->ucr;
 
+	pm_runtime_get_sync(sdmmc_dev(host));
 	mutex_lock(&ucr->dev_mutex);
 
 	if (host->led.brightness == LED_OFF)
@@ -1322,6 +1318,7 @@ static void rtsx_usb_update_led(struct w
 		rtsx_usb_turn_on_led(ucr);
 
 	mutex_unlock(&ucr->dev_mutex);
+	pm_runtime_put(sdmmc_dev(host));
 }
 #endif
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/mmc/host/s3cmci.c linux-libre-4.4.107-gnu/drivers/mmc/host/s3cmci.c
--- linux-libre-4.4-gnu/drivers/mmc/host/s3cmci.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/mmc/host/s3cmci.c	2017-12-20 04:05:01.000000000 -0500
@@ -21,6 +21,7 @@
 #include <linux/debugfs.h>
 #include <linux/seq_file.h>
 #include <linux/gpio.h>
+#include <linux/interrupt.h>
 #include <linux/irq.h>
 #include <linux/io.h>
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/mmc/host/sdhci-acpi.c linux-libre-4.4.107-gnu/drivers/mmc/host/sdhci-acpi.c
--- linux-libre-4.4-gnu/drivers/mmc/host/sdhci-acpi.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/mmc/host/sdhci-acpi.c	2017-12-20 04:05:01.000000000 -0500
@@ -41,6 +41,11 @@
 #include <linux/mmc/pm.h>
 #include <linux/mmc/slot-gpio.h>
 
+#ifdef CONFIG_X86
+#include <asm/cpu_device_id.h>
+#include <asm/iosf_mbi.h>
+#endif
+
 #include "sdhci.h"
 
 enum {
@@ -146,6 +151,102 @@ static const struct sdhci_acpi_chip sdhc
 	.ops = &sdhci_acpi_ops_int,
 };
 
+#ifdef CONFIG_X86
+
+static bool sdhci_acpi_byt(void)
+{
+	static const struct x86_cpu_id byt[] = {
+		{ X86_VENDOR_INTEL, 6, 0x37 },
+		{}
+	};
+
+	return x86_match_cpu(byt);
+}
+
+#define BYT_IOSF_SCCEP			0x63
+#define BYT_IOSF_OCP_NETCTRL0		0x1078
+#define BYT_IOSF_OCP_TIMEOUT_BASE	GENMASK(10, 8)
+
+static void sdhci_acpi_byt_setting(struct device *dev)
+{
+	u32 val = 0;
+
+	if (!sdhci_acpi_byt())
+		return;
+
+	if (iosf_mbi_read(BYT_IOSF_SCCEP, 0x06, BYT_IOSF_OCP_NETCTRL0,
+			  &val)) {
+		dev_err(dev, "%s read error\n", __func__);
+		return;
+	}
+
+	if (!(val & BYT_IOSF_OCP_TIMEOUT_BASE))
+		return;
+
+	val &= ~BYT_IOSF_OCP_TIMEOUT_BASE;
+
+	if (iosf_mbi_write(BYT_IOSF_SCCEP, 0x07, BYT_IOSF_OCP_NETCTRL0,
+			   val)) {
+		dev_err(dev, "%s write error\n", __func__);
+		return;
+	}
+
+	dev_dbg(dev, "%s completed\n", __func__);
+}
+
+static bool sdhci_acpi_byt_defer(struct device *dev)
+{
+	if (!sdhci_acpi_byt())
+		return false;
+
+	if (!iosf_mbi_available())
+		return true;
+
+	sdhci_acpi_byt_setting(dev);
+
+	return false;
+}
+
+#else
+
+static inline void sdhci_acpi_byt_setting(struct device *dev)
+{
+}
+
+static inline bool sdhci_acpi_byt_defer(struct device *dev)
+{
+	return false;
+}
+
+#endif
+
+static int bxt_get_cd(struct mmc_host *mmc)
+{
+	int gpio_cd = mmc_gpio_get_cd(mmc);
+	struct sdhci_host *host = mmc_priv(mmc);
+	unsigned long flags;
+	int ret = 0;
+
+	if (!gpio_cd)
+		return 0;
+
+	pm_runtime_get_sync(mmc->parent);
+
+	spin_lock_irqsave(&host->lock, flags);
+
+	if (host->flags & SDHCI_DEVICE_DEAD)
+		goto out;
+
+	ret = !!(sdhci_readl(host, SDHCI_PRESENT_STATE) & SDHCI_CARD_PRESENT);
+out:
+	spin_unlock_irqrestore(&host->lock, flags);
+
+	pm_runtime_mark_last_busy(mmc->parent);
+	pm_runtime_put_autosuspend(mmc->parent);
+
+	return ret;
+}
+
 static int sdhci_acpi_emmc_probe_slot(struct platform_device *pdev,
 				      const char *hid, const char *uid)
 {
@@ -196,6 +297,9 @@ static int sdhci_acpi_sd_probe_slot(stru
 
 	/* Platform specific code during sd probe slot goes here */
 
+	if (hid && !strcmp(hid, "80865ACA"))
+		host->mmc_host_ops.get_cd = bxt_get_cd;
+
 	return 0;
 }
 
@@ -203,7 +307,7 @@ static const struct sdhci_acpi_slot sdhc
 	.chip    = &sdhci_acpi_chip_int,
 	.caps    = MMC_CAP_8_BIT_DATA | MMC_CAP_NONREMOVABLE |
 		   MMC_CAP_HW_RESET | MMC_CAP_1_8V_DDR |
-		   MMC_CAP_BUS_WIDTH_TEST | MMC_CAP_WAIT_WHILE_BUSY,
+		   MMC_CAP_WAIT_WHILE_BUSY,
 	.caps2   = MMC_CAP2_HC_ERASE_SZ,
 	.flags   = SDHCI_ACPI_RUNTIME_PM,
 	.quirks  = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC,
@@ -218,7 +322,7 @@ static const struct sdhci_acpi_slot sdhc
 		   SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC,
 	.quirks2 = SDHCI_QUIRK2_HOST_OFF_CARD_ON,
 	.caps    = MMC_CAP_NONREMOVABLE | MMC_CAP_POWER_OFF_CARD |
-		   MMC_CAP_BUS_WIDTH_TEST | MMC_CAP_WAIT_WHILE_BUSY,
+		   MMC_CAP_WAIT_WHILE_BUSY,
 	.flags   = SDHCI_ACPI_RUNTIME_PM,
 	.pm_caps = MMC_PM_KEEP_POWER,
 	.probe_slot	= sdhci_acpi_sdio_probe_slot,
@@ -230,7 +334,7 @@ static const struct sdhci_acpi_slot sdhc
 	.quirks  = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC,
 	.quirks2 = SDHCI_QUIRK2_CARD_ON_NEEDS_BUS_ON |
 		   SDHCI_QUIRK2_STOP_WITH_TC,
-	.caps    = MMC_CAP_BUS_WIDTH_TEST | MMC_CAP_WAIT_WHILE_BUSY,
+	.caps    = MMC_CAP_WAIT_WHILE_BUSY,
 	.probe_slot	= sdhci_acpi_sd_probe_slot,
 };
 
@@ -307,6 +411,9 @@ static int sdhci_acpi_probe(struct platf
 	if (acpi_bus_get_status(device) || !device->status.present)
 		return -ENODEV;
 
+	if (sdhci_acpi_byt_defer(dev))
+		return -EPROBE_DEFER;
+
 	hid = acpi_device_hid(device);
 	uid = device->pnp.unique_id;
 
@@ -430,6 +537,8 @@ static int sdhci_acpi_resume(struct devi
 {
 	struct sdhci_acpi_host *c = dev_get_drvdata(dev);
 
+	sdhci_acpi_byt_setting(&c->pdev->dev);
+
 	return sdhci_resume_host(c->host);
 }
 
@@ -453,6 +562,8 @@ static int sdhci_acpi_runtime_resume(str
 {
 	struct sdhci_acpi_host *c = dev_get_drvdata(dev);
 
+	sdhci_acpi_byt_setting(&c->pdev->dev);
+
 	return sdhci_runtime_resume_host(c->host);
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/mmc/host/sdhci.c linux-libre-4.4.107-gnu/drivers/mmc/host/sdhci.c
--- linux-libre-4.4-gnu/drivers/mmc/host/sdhci.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/mmc/host/sdhci.c	2017-12-20 04:05:01.000000000 -0500
@@ -492,7 +492,7 @@ static int sdhci_adma_table_pre(struct s
 		host->align_buffer, host->align_buffer_sz, direction);
 	if (dma_mapping_error(mmc_dev(host->mmc), host->align_addr))
 		goto fail;
-	BUG_ON(host->align_addr & host->align_mask);
+	BUG_ON(host->align_addr & SDHCI_ADMA2_MASK);
 
 	host->sg_count = sdhci_pre_dma_transfer(host, data);
 	if (host->sg_count < 0)
@@ -514,8 +514,8 @@ static int sdhci_adma_table_pre(struct s
 		 * the (up to three) bytes that screw up the
 		 * alignment.
 		 */
-		offset = (host->align_sz - (addr & host->align_mask)) &
-			 host->align_mask;
+		offset = (SDHCI_ADMA2_ALIGN - (addr & SDHCI_ADMA2_MASK)) &
+			 SDHCI_ADMA2_MASK;
 		if (offset) {
 			if (data->flags & MMC_DATA_WRITE) {
 				buffer = sdhci_kmap_atomic(sg, &flags);
@@ -529,8 +529,8 @@ static int sdhci_adma_table_pre(struct s
 
 			BUG_ON(offset > 65536);
 
-			align += host->align_sz;
-			align_addr += host->align_sz;
+			align += SDHCI_ADMA2_ALIGN;
+			align_addr += SDHCI_ADMA2_ALIGN;
 
 			desc += host->desc_sz;
 
@@ -540,9 +540,12 @@ static int sdhci_adma_table_pre(struct s
 
 		BUG_ON(len > 65536);
 
-		/* tran, valid */
-		sdhci_adma_write_desc(host, desc, addr, len, ADMA2_TRAN_VALID);
-		desc += host->desc_sz;
+		if (len) {
+			/* tran, valid */
+			sdhci_adma_write_desc(host, desc, addr, len,
+					      ADMA2_TRAN_VALID);
+			desc += host->desc_sz;
+		}
 
 		/*
 		 * If this triggers then we have a calculation bug
@@ -608,7 +611,7 @@ static void sdhci_adma_table_post(struct
 	/* Do a quick scan of the SG list for any unaligned mappings */
 	has_unaligned = false;
 	for_each_sg(data->sg, sg, host->sg_count, i)
-		if (sg_dma_address(sg) & host->align_mask) {
+		if (sg_dma_address(sg) & SDHCI_ADMA2_MASK) {
 			has_unaligned = true;
 			break;
 		}
@@ -620,15 +623,15 @@ static void sdhci_adma_table_post(struct
 		align = host->align_buffer;
 
 		for_each_sg(data->sg, sg, host->sg_count, i) {
-			if (sg_dma_address(sg) & host->align_mask) {
-				size = host->align_sz -
-				       (sg_dma_address(sg) & host->align_mask);
+			if (sg_dma_address(sg) & SDHCI_ADMA2_MASK) {
+				size = SDHCI_ADMA2_ALIGN -
+				       (sg_dma_address(sg) & SDHCI_ADMA2_MASK);
 
 				buffer = sdhci_kmap_atomic(sg, &flags);
 				memcpy(buffer, align, size);
 				sdhci_kunmap_atomic(buffer, &flags);
 
-				align += host->align_sz;
+				align += SDHCI_ADMA2_ALIGN;
 			}
 		}
 	}
@@ -663,9 +666,20 @@ static u8 sdhci_calc_timeout(struct sdhc
 	if (!data)
 		target_timeout = cmd->busy_timeout * 1000;
 	else {
-		target_timeout = data->timeout_ns / 1000;
-		if (host->clock)
-			target_timeout += data->timeout_clks / host->clock;
+		target_timeout = DIV_ROUND_UP(data->timeout_ns, 1000);
+		if (host->clock && data->timeout_clks) {
+			unsigned long long val;
+
+			/*
+			 * data->timeout_clks is in units of clock cycles.
+			 * host->clock is in Hz.  target_timeout is in us.
+			 * Hence, us = 1000000 * cycles / Hz.  Round up.
+			 */
+			val = 1000000ULL * data->timeout_clks;
+			if (do_div(val, host->clock))
+				target_timeout++;
+			target_timeout += val;
+		}
 	}
 
 	/*
@@ -1260,7 +1274,9 @@ clock_set:
 			return;
 		}
 		timeout--;
-		mdelay(1);
+		spin_unlock_irq(&host->lock);
+		usleep_range(900, 1100);
+		spin_lock_irq(&host->lock);
 	}
 
 	clk |= SDHCI_CLOCK_CARD_EN;
@@ -1301,7 +1317,9 @@ static void sdhci_set_power(struct sdhci
 			pwr = SDHCI_POWER_330;
 			break;
 		default:
-			BUG();
+			WARN(1, "%s: Invalid vdd %#x\n",
+			     mmc_hostname(host->mmc), vdd);
+			break;
 		}
 	}
 
@@ -1364,7 +1382,7 @@ static void sdhci_request(struct mmc_hos
 	sdhci_runtime_pm_get(host);
 
 	/* Firstly check card presence */
-	present = sdhci_do_get_cd(host);
+	present = mmc->ops->get_cd(mmc);
 
 	spin_lock_irqsave(&host->lock, flags);
 
@@ -2024,7 +2042,27 @@ static int sdhci_execute_tuning(struct m
 			ctrl &= ~SDHCI_CTRL_EXEC_TUNING;
 			sdhci_writew(host, ctrl, SDHCI_HOST_CONTROL2);
 
+			sdhci_do_reset(host, SDHCI_RESET_CMD);
+			sdhci_do_reset(host, SDHCI_RESET_DATA);
+
 			err = -EIO;
+
+			if (cmd.opcode != MMC_SEND_TUNING_BLOCK_HS200)
+				goto out;
+
+			sdhci_writel(host, host->ier, SDHCI_INT_ENABLE);
+			sdhci_writel(host, host->ier, SDHCI_SIGNAL_ENABLE);
+
+			spin_unlock_irqrestore(&host->lock, flags);
+
+			memset(&cmd, 0, sizeof(cmd));
+			cmd.opcode = MMC_STOP_TRANSMISSION;
+			cmd.flags = MMC_RSP_SPI_R1B | MMC_RSP_R1B | MMC_CMD_AC;
+			cmd.busy_timeout = 50;
+			mmc_wait_for_cmd(mmc, &cmd, 0);
+
+			spin_lock_irqsave(&host->lock, flags);
+
 			goto out;
 		}
 
@@ -2593,7 +2631,8 @@ static irqreturn_t sdhci_irq(int irq, vo
 			pr_err("%s: Card is consuming too much power!\n",
 				mmc_hostname(host->mmc));
 
-		if (intmask & SDHCI_INT_CARD_INT) {
+		if ((intmask & SDHCI_INT_CARD_INT) &&
+		    (host->ier & SDHCI_INT_CARD_INT)) {
 			sdhci_enable_sdio_irq_nolock(host, false);
 			host->thread_isr |= SDHCI_INT_CARD_INT;
 			result = IRQ_WAKE_THREAD;
@@ -2760,7 +2799,7 @@ static int sdhci_runtime_pm_put(struct s
 
 static void sdhci_runtime_pm_bus_on(struct sdhci_host *host)
 {
-	if (host->runtime_suspended || host->bus_on)
+	if (host->bus_on)
 		return;
 	host->bus_on = true;
 	pm_runtime_get_noresume(host->mmc->parent);
@@ -2768,7 +2807,7 @@ static void sdhci_runtime_pm_bus_on(stru
 
 static void sdhci_runtime_pm_bus_off(struct sdhci_host *host)
 {
-	if (host->runtime_suspended || !host->bus_on)
+	if (!host->bus_on)
 		return;
 	host->bus_on = false;
 	pm_runtime_put_noidle(host->mmc->parent);
@@ -2861,6 +2900,8 @@ struct sdhci_host *sdhci_alloc_host(stru
 
 	host = mmc_priv(mmc);
 	host->mmc = mmc;
+	host->mmc_host_ops = sdhci_ops;
+	mmc->ops = &host->mmc_host_ops;
 
 	return host;
 }
@@ -2967,24 +3008,17 @@ int sdhci_add_host(struct sdhci_host *ho
 		if (host->flags & SDHCI_USE_64_BIT_DMA) {
 			host->adma_table_sz = (SDHCI_MAX_SEGS * 2 + 1) *
 					      SDHCI_ADMA2_64_DESC_SZ;
-			host->align_buffer_sz = SDHCI_MAX_SEGS *
-						SDHCI_ADMA2_64_ALIGN;
 			host->desc_sz = SDHCI_ADMA2_64_DESC_SZ;
-			host->align_sz = SDHCI_ADMA2_64_ALIGN;
-			host->align_mask = SDHCI_ADMA2_64_ALIGN - 1;
 		} else {
 			host->adma_table_sz = (SDHCI_MAX_SEGS * 2 + 1) *
 					      SDHCI_ADMA2_32_DESC_SZ;
-			host->align_buffer_sz = SDHCI_MAX_SEGS *
-						SDHCI_ADMA2_32_ALIGN;
 			host->desc_sz = SDHCI_ADMA2_32_DESC_SZ;
-			host->align_sz = SDHCI_ADMA2_32_ALIGN;
-			host->align_mask = SDHCI_ADMA2_32_ALIGN - 1;
 		}
 		host->adma_table = dma_alloc_coherent(mmc_dev(mmc),
 						      host->adma_table_sz,
 						      &host->adma_addr,
 						      GFP_KERNEL);
+		host->align_buffer_sz = SDHCI_MAX_SEGS * SDHCI_ADMA2_ALIGN;
 		host->align_buffer = kmalloc(host->align_buffer_sz, GFP_KERNEL);
 		if (!host->adma_table || !host->align_buffer) {
 			if (host->adma_table)
@@ -2998,7 +3032,7 @@ int sdhci_add_host(struct sdhci_host *ho
 			host->flags &= ~SDHCI_USE_ADMA;
 			host->adma_table = NULL;
 			host->align_buffer = NULL;
-		} else if (host->adma_addr & host->align_mask) {
+		} else if (host->adma_addr & (SDHCI_ADMA2_DESC_ALIGN - 1)) {
 			pr_warn("%s: unable to allocate aligned ADMA descriptor\n",
 				mmc_hostname(mmc));
 			host->flags &= ~SDHCI_USE_ADMA;
@@ -3057,7 +3091,6 @@ int sdhci_add_host(struct sdhci_host *ho
 	/*
 	 * Set host parameters.
 	 */
-	mmc->ops = &sdhci_ops;
 	max_clk = host->max_clk;
 
 	if (host->ops->get_min_clock)
@@ -3091,14 +3124,14 @@ int sdhci_add_host(struct sdhci_host *ho
 		if (caps[0] & SDHCI_TIMEOUT_CLK_UNIT)
 			host->timeout_clk *= 1000;
 
+		if (override_timeout_clk)
+			host->timeout_clk = override_timeout_clk;
+
 		mmc->max_busy_timeout = host->ops->get_max_timeout_count ?
 			host->ops->get_max_timeout_count(host) : 1 << 27;
 		mmc->max_busy_timeout /= host->timeout_clk;
 	}
 
-	if (override_timeout_clk)
-		host->timeout_clk = override_timeout_clk;
-
 	mmc->caps |= MMC_CAP_SDIO_IRQ | MMC_CAP_ERASE | MMC_CAP_CMD23;
 	mmc->caps2 |= MMC_CAP2_SDIO_IRQ_NOTHREAD;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/mmc/host/sdhci-esdhc-imx.c linux-libre-4.4.107-gnu/drivers/mmc/host/sdhci-esdhc-imx.c
--- linux-libre-4.4-gnu/drivers/mmc/host/sdhci-esdhc-imx.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/mmc/host/sdhci-esdhc-imx.c	2017-12-20 04:05:01.000000000 -0500
@@ -804,6 +804,7 @@ static int esdhc_change_pinstate(struct
 
 	switch (uhs) {
 	case MMC_TIMING_UHS_SDR50:
+	case MMC_TIMING_UHS_DDR50:
 		pinctrl = imx_data->pins_100mhz;
 		break;
 	case MMC_TIMING_UHS_SDR104:
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/mmc/host/sdhci.h linux-libre-4.4.107-gnu/drivers/mmc/host/sdhci.h
--- linux-libre-4.4-gnu/drivers/mmc/host/sdhci.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/mmc/host/sdhci.h	2017-12-20 04:05:01.000000000 -0500
@@ -272,22 +272,27 @@
 /* ADMA2 32-bit DMA descriptor size */
 #define SDHCI_ADMA2_32_DESC_SZ	8
 
-/* ADMA2 32-bit DMA alignment */
-#define SDHCI_ADMA2_32_ALIGN	4
-
 /* ADMA2 32-bit descriptor */
 struct sdhci_adma2_32_desc {
 	__le16	cmd;
 	__le16	len;
 	__le32	addr;
-}  __packed __aligned(SDHCI_ADMA2_32_ALIGN);
+}  __packed __aligned(4);
+
+/* ADMA2 data alignment */
+#define SDHCI_ADMA2_ALIGN	4
+#define SDHCI_ADMA2_MASK	(SDHCI_ADMA2_ALIGN - 1)
+
+/*
+ * ADMA2 descriptor alignment.  Some controllers (e.g. Intel) require 8 byte
+ * alignment for the descriptor table even in 32-bit DMA mode.  Memory
+ * allocation is at least 8 byte aligned anyway, so just stipulate 8 always.
+ */
+#define SDHCI_ADMA2_DESC_ALIGN	8
 
 /* ADMA2 64-bit DMA descriptor size */
 #define SDHCI_ADMA2_64_DESC_SZ	12
 
-/* ADMA2 64-bit DMA alignment */
-#define SDHCI_ADMA2_64_ALIGN	8
-
 /*
  * ADMA2 64-bit descriptor. Note 12-byte descriptor can't always be 8-byte
  * aligned.
@@ -425,6 +430,7 @@ struct sdhci_host {
 
 	/* Internal data */
 	struct mmc_host *mmc;	/* MMC structure */
+	struct mmc_host_ops mmc_host_ops;	/* MMC host ops */
 	u64 dma_mask;		/* custom DMA mask */
 
 #if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE)
@@ -482,8 +488,6 @@ struct sdhci_host {
 	dma_addr_t align_addr;	/* Mapped bounce buffer */
 
 	unsigned int desc_sz;	/* ADMA descriptor size */
-	unsigned int align_sz;	/* ADMA alignment */
-	unsigned int align_mask;	/* ADMA alignment mask */
 
 	struct tasklet_struct finish_tasklet;	/* Tasklet structures */
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/mmc/host/sdhci-iproc.c linux-libre-4.4.107-gnu/drivers/mmc/host/sdhci-iproc.c
--- linux-libre-4.4-gnu/drivers/mmc/host/sdhci-iproc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/mmc/host/sdhci-iproc.c	2017-12-20 04:05:01.000000000 -0500
@@ -156,7 +156,8 @@ static const struct sdhci_ops sdhci_ipro
 };
 
 static const struct sdhci_pltfm_data sdhci_iproc_pltfm_data = {
-	.quirks = SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK,
+	.quirks = SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK |
+		  SDHCI_QUIRK_MULTIBLOCK_READ_ACMD12,
 	.quirks2 = SDHCI_QUIRK2_ACMD23_BROKEN,
 	.ops = &sdhci_iproc_ops,
 };
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/mmc/host/sdhci-pci-core.c linux-libre-4.4.107-gnu/drivers/mmc/host/sdhci-pci-core.c
--- linux-libre-4.4-gnu/drivers/mmc/host/sdhci-pci-core.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/mmc/host/sdhci-pci-core.c	2017-12-20 04:05:01.000000000 -0500
@@ -277,7 +277,7 @@ static int spt_select_drive_strength(str
 	if (sdhci_pci_spt_drive_strength > 0)
 		drive_strength = sdhci_pci_spt_drive_strength & 0xf;
 	else
-		drive_strength = 1; /* 33-ohm */
+		drive_strength = 0; /* Default 50-ohm */
 
 	if ((mmc_driver_type_mask(drive_strength) & card_drv) == 0)
 		drive_strength = 0; /* Default 50-ohm */
@@ -330,11 +330,37 @@ static void spt_read_drive_strength(stru
 	sdhci_pci_spt_drive_strength = 0x10 | ((val >> 12) & 0xf);
 }
 
+static int bxt_get_cd(struct mmc_host *mmc)
+{
+	int gpio_cd = mmc_gpio_get_cd(mmc);
+	struct sdhci_host *host = mmc_priv(mmc);
+	unsigned long flags;
+	int ret = 0;
+
+	if (!gpio_cd)
+		return 0;
+
+	pm_runtime_get_sync(mmc->parent);
+
+	spin_lock_irqsave(&host->lock, flags);
+
+	if (host->flags & SDHCI_DEVICE_DEAD)
+		goto out;
+
+	ret = !!(sdhci_readl(host, SDHCI_PRESENT_STATE) & SDHCI_CARD_PRESENT);
+out:
+	spin_unlock_irqrestore(&host->lock, flags);
+
+	pm_runtime_mark_last_busy(mmc->parent);
+	pm_runtime_put_autosuspend(mmc->parent);
+
+	return ret;
+}
+
 static int byt_emmc_probe_slot(struct sdhci_pci_slot *slot)
 {
 	slot->host->mmc->caps |= MMC_CAP_8_BIT_DATA | MMC_CAP_NONREMOVABLE |
 				 MMC_CAP_HW_RESET | MMC_CAP_1_8V_DDR |
-				 MMC_CAP_BUS_WIDTH_TEST |
 				 MMC_CAP_WAIT_WHILE_BUSY;
 	slot->host->mmc->caps2 |= MMC_CAP2_HC_ERASE_SZ;
 	slot->hw_reset = sdhci_pci_int_hw_reset;
@@ -350,18 +376,21 @@ static int byt_emmc_probe_slot(struct sd
 static int byt_sdio_probe_slot(struct sdhci_pci_slot *slot)
 {
 	slot->host->mmc->caps |= MMC_CAP_POWER_OFF_CARD | MMC_CAP_NONREMOVABLE |
-				 MMC_CAP_BUS_WIDTH_TEST |
 				 MMC_CAP_WAIT_WHILE_BUSY;
 	return 0;
 }
 
 static int byt_sd_probe_slot(struct sdhci_pci_slot *slot)
 {
-	slot->host->mmc->caps |= MMC_CAP_BUS_WIDTH_TEST |
-				 MMC_CAP_WAIT_WHILE_BUSY;
+	slot->host->mmc->caps |= MMC_CAP_WAIT_WHILE_BUSY;
 	slot->cd_con_id = NULL;
 	slot->cd_idx = 0;
 	slot->cd_override_level = true;
+	if (slot->chip->pdev->device == PCI_DEVICE_ID_INTEL_BXT_SD ||
+	    slot->chip->pdev->device == PCI_DEVICE_ID_INTEL_BXTM_SD ||
+	    slot->chip->pdev->device == PCI_DEVICE_ID_INTEL_APL_SD)
+		slot->host->mmc_host_ops.get_cd = bxt_get_cd;
+
 	return 0;
 }
 
@@ -1138,6 +1167,30 @@ static const struct pci_device_id pci_id
 		.subvendor	= PCI_ANY_ID,
 		.subdevice	= PCI_ANY_ID,
 		.driver_data	= (kernel_ulong_t)&sdhci_intel_byt_sd,
+	},
+
+	{
+		.vendor		= PCI_VENDOR_ID_INTEL,
+		.device		= PCI_DEVICE_ID_INTEL_BXTM_EMMC,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.driver_data	= (kernel_ulong_t)&sdhci_intel_byt_emmc,
+	},
+
+	{
+		.vendor		= PCI_VENDOR_ID_INTEL,
+		.device		= PCI_DEVICE_ID_INTEL_BXTM_SDIO,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.driver_data	= (kernel_ulong_t)&sdhci_intel_byt_sdio,
+	},
+
+	{
+		.vendor		= PCI_VENDOR_ID_INTEL,
+		.device		= PCI_DEVICE_ID_INTEL_BXTM_SD,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.driver_data	= (kernel_ulong_t)&sdhci_intel_byt_sd,
 	},
 
 	{
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/mmc/host/sdhci-pci.h linux-libre-4.4.107-gnu/drivers/mmc/host/sdhci-pci.h
--- linux-libre-4.4-gnu/drivers/mmc/host/sdhci-pci.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/mmc/host/sdhci-pci.h	2017-12-20 04:05:01.000000000 -0500
@@ -28,6 +28,9 @@
 #define PCI_DEVICE_ID_INTEL_BXT_SD	0x0aca
 #define PCI_DEVICE_ID_INTEL_BXT_EMMC	0x0acc
 #define PCI_DEVICE_ID_INTEL_BXT_SDIO	0x0ad0
+#define PCI_DEVICE_ID_INTEL_BXTM_SD	0x1aca
+#define PCI_DEVICE_ID_INTEL_BXTM_EMMC	0x1acc
+#define PCI_DEVICE_ID_INTEL_BXTM_SDIO	0x1ad0
 #define PCI_DEVICE_ID_INTEL_APL_SD	0x5aca
 #define PCI_DEVICE_ID_INTEL_APL_EMMC	0x5acc
 #define PCI_DEVICE_ID_INTEL_APL_SDIO	0x5ad0
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/mmc/host/sh_mmcif.c linux-libre-4.4.107-gnu/drivers/mmc/host/sh_mmcif.c
--- linux-libre-4.4-gnu/drivers/mmc/host/sh_mmcif.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/mmc/host/sh_mmcif.c	2017-12-20 04:05:01.000000000 -0500
@@ -397,38 +397,26 @@ static void sh_mmcif_start_dma_tx(struct
 }
 
 static struct dma_chan *
-sh_mmcif_request_dma_one(struct sh_mmcif_host *host,
-			 struct sh_mmcif_plat_data *pdata,
-			 enum dma_transfer_direction direction)
+sh_mmcif_request_dma_pdata(struct sh_mmcif_host *host, uintptr_t slave_id)
 {
-	struct dma_slave_config cfg = { 0, };
-	struct dma_chan *chan;
-	void *slave_data = NULL;
-	struct resource *res;
-	struct device *dev = sh_mmcif_host_to_dev(host);
 	dma_cap_mask_t mask;
-	int ret;
 
 	dma_cap_zero(mask);
 	dma_cap_set(DMA_SLAVE, mask);
+	if (slave_id <= 0)
+		return NULL;
 
-	if (pdata)
-		slave_data = direction == DMA_MEM_TO_DEV ?
-			(void *)pdata->slave_id_tx :
-			(void *)pdata->slave_id_rx;
-
-	chan = dma_request_slave_channel_compat(mask, shdma_chan_filter,
-				slave_data, dev,
-				direction == DMA_MEM_TO_DEV ? "tx" : "rx");
-
-	dev_dbg(dev, "%s: %s: got channel %p\n", __func__,
-		direction == DMA_MEM_TO_DEV ? "TX" : "RX", chan);
+	return dma_request_channel(mask, shdma_chan_filter, (void *)slave_id);
+}
 
-	if (!chan)
-		return NULL;
+static int sh_mmcif_dma_slave_config(struct sh_mmcif_host *host,
+				     struct dma_chan *chan,
+				     enum dma_transfer_direction direction)
+{
+	struct resource *res;
+	struct dma_slave_config cfg = { 0, };
 
 	res = platform_get_resource(host->pd, IORESOURCE_MEM, 0);
-
 	cfg.direction = direction;
 
 	if (direction == DMA_DEV_TO_MEM) {
@@ -439,38 +427,42 @@ sh_mmcif_request_dma_one(struct sh_mmcif
 		cfg.dst_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
 	}
 
-	ret = dmaengine_slave_config(chan, &cfg);
-	if (ret < 0) {
-		dma_release_channel(chan);
-		return NULL;
-	}
-
-	return chan;
+	return dmaengine_slave_config(chan, &cfg);
 }
 
-static void sh_mmcif_request_dma(struct sh_mmcif_host *host,
-				 struct sh_mmcif_plat_data *pdata)
+static void sh_mmcif_request_dma(struct sh_mmcif_host *host)
 {
 	struct device *dev = sh_mmcif_host_to_dev(host);
 	host->dma_active = false;
 
-	if (pdata) {
-		if (pdata->slave_id_tx <= 0 || pdata->slave_id_rx <= 0)
-			return;
-	} else if (!dev->of_node) {
-		return;
+	/* We can only either use DMA for both Tx and Rx or not use it at all */
+	if (IS_ENABLED(CONFIG_SUPERH) && dev->platform_data) {
+		struct sh_mmcif_plat_data *pdata = dev->platform_data;
+
+		host->chan_tx = sh_mmcif_request_dma_pdata(host,
+							pdata->slave_id_tx);
+		host->chan_rx = sh_mmcif_request_dma_pdata(host,
+							pdata->slave_id_rx);
+	} else {
+		host->chan_tx = dma_request_slave_channel(dev, "tx");
+		host->chan_rx = dma_request_slave_channel(dev, "rx");
 	}
+	dev_dbg(dev, "%s: got channel TX %p RX %p\n", __func__, host->chan_tx,
+		host->chan_rx);
 
-	/* We can only either use DMA for both Tx and Rx or not use it at all */
-	host->chan_tx = sh_mmcif_request_dma_one(host, pdata, DMA_MEM_TO_DEV);
-	if (!host->chan_tx)
-		return;
+	if (!host->chan_tx || !host->chan_rx ||
+	    sh_mmcif_dma_slave_config(host, host->chan_tx, DMA_MEM_TO_DEV) ||
+	    sh_mmcif_dma_slave_config(host, host->chan_rx, DMA_DEV_TO_MEM))
+		goto error;
 
-	host->chan_rx = sh_mmcif_request_dma_one(host, pdata, DMA_DEV_TO_MEM);
-	if (!host->chan_rx) {
+	return;
+
+error:
+	if (host->chan_tx)
 		dma_release_channel(host->chan_tx);
-		host->chan_tx = NULL;
-	}
+	if (host->chan_rx)
+		dma_release_channel(host->chan_rx);
+	host->chan_tx = host->chan_rx = NULL;
 }
 
 static void sh_mmcif_release_dma(struct sh_mmcif_host *host)
@@ -1102,7 +1094,7 @@ static void sh_mmcif_set_ios(struct mmc_
 	if (ios->power_mode == MMC_POWER_UP) {
 		if (!host->card_present) {
 			/* See if we also get DMA */
-			sh_mmcif_request_dma(host, dev->platform_data);
+			sh_mmcif_request_dma(host);
 			host->card_present = true;
 		}
 		sh_mmcif_set_power(host, ios);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/mmc/host/usdhi6rol0.c linux-libre-4.4.107-gnu/drivers/mmc/host/usdhi6rol0.c
--- linux-libre-4.4-gnu/drivers/mmc/host/usdhi6rol0.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/mmc/host/usdhi6rol0.c	2017-12-20 04:05:01.000000000 -0500
@@ -1634,7 +1634,7 @@ static void usdhi6_timeout_work(struct w
 	struct usdhi6_host *host = container_of(d, struct usdhi6_host, timeout_work);
 	struct mmc_request *mrq = host->mrq;
 	struct mmc_data *data = mrq ? mrq->data : NULL;
-	struct scatterlist *sg = host->sg ?: data->sg;
+	struct scatterlist *sg;
 
 	dev_warn(mmc_dev(host->mmc),
 		 "%s timeout wait %u CMD%d: IRQ 0x%08x:0x%08x, last IRQ 0x%08x\n",
@@ -1666,6 +1666,7 @@ static void usdhi6_timeout_work(struct w
 	case USDHI6_WAIT_FOR_MWRITE:
 	case USDHI6_WAIT_FOR_READ:
 	case USDHI6_WAIT_FOR_WRITE:
+		sg = host->sg ?: data->sg;
 		dev_dbg(mmc_dev(host->mmc),
 			"%c: page #%u @ +0x%zx %ux%u in SG%u. Current SG %u bytes @ %u\n",
 			data->flags & MMC_DATA_READ ? 'R' : 'W', host->page_idx,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/mmc/host/ushc.c linux-libre-4.4.107-gnu/drivers/mmc/host/ushc.c
--- linux-libre-4.4-gnu/drivers/mmc/host/ushc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/mmc/host/ushc.c	2017-12-20 04:05:01.000000000 -0500
@@ -426,6 +426,9 @@ static int ushc_probe(struct usb_interfa
 	struct ushc_data *ushc;
 	int ret;
 
+	if (intf->cur_altsetting->desc.bNumEndpoints < 1)
+		return -ENODEV;
+
 	mmc = mmc_alloc_host(sizeof(struct ushc_data), &intf->dev);
 	if (mmc == NULL)
 		return -ENOMEM;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/mtd/bcm47xxpart.c linux-libre-4.4.107-gnu/drivers/mtd/bcm47xxpart.c
--- linux-libre-4.4-gnu/drivers/mtd/bcm47xxpart.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/mtd/bcm47xxpart.c	2017-12-20 04:05:01.000000000 -0500
@@ -66,11 +66,13 @@ static const char *bcm47xxpart_trx_data_
 {
 	uint32_t buf;
 	size_t bytes_read;
+	int err;
 
-	if (mtd_read(master, offset, sizeof(buf), &bytes_read,
-		     (uint8_t *)&buf) < 0) {
-		pr_err("mtd_read error while parsing (offset: 0x%X)!\n",
-			offset);
+	err  = mtd_read(master, offset, sizeof(buf), &bytes_read,
+			(uint8_t *)&buf);
+	if (err && !mtd_is_bitflip(err)) {
+		pr_err("mtd_read error while parsing (offset: 0x%X): %d\n",
+			offset, err);
 		goto out_default;
 	}
 
@@ -95,6 +97,7 @@ static int bcm47xxpart_parse(struct mtd_
 	int trx_part = -1;
 	int last_trx_part = -1;
 	int possible_nvram_sizes[] = { 0x8000, 0xF000, 0x10000, };
+	int err;
 
 	/*
 	 * Some really old flashes (like AT45DB*) had smaller erasesize-s, but
@@ -118,8 +121,8 @@ static int bcm47xxpart_parse(struct mtd_
 	/* Parse block by block looking for magics */
 	for (offset = 0; offset <= master->size - blocksize;
 	     offset += blocksize) {
-		/* Nothing more in higher memory */
-		if (offset >= 0x2000000)
+		/* Nothing more in higher memory on BCM47XX (MIPS) */
+		if (config_enabled(CONFIG_BCM47XX) && offset >= 0x2000000)
 			break;
 
 		if (curr_part >= BCM47XXPART_MAX_PARTS) {
@@ -128,10 +131,11 @@ static int bcm47xxpart_parse(struct mtd_
 		}
 
 		/* Read beginning of the block */
-		if (mtd_read(master, offset, BCM47XXPART_BYTES_TO_READ,
-			     &bytes_read, (uint8_t *)buf) < 0) {
-			pr_err("mtd_read error while parsing (offset: 0x%X)!\n",
-			       offset);
+		err = mtd_read(master, offset, BCM47XXPART_BYTES_TO_READ,
+			       &bytes_read, (uint8_t *)buf);
+		if (err && !mtd_is_bitflip(err)) {
+			pr_err("mtd_read error while parsing (offset: 0x%X): %d\n",
+			       offset, err);
 			continue;
 		}
 
@@ -225,12 +229,10 @@ static int bcm47xxpart_parse(struct mtd_
 
 			last_trx_part = curr_part - 1;
 
-			/*
-			 * We have whole TRX scanned, skip to the next part. Use
-			 * roundown (not roundup), as the loop will increase
-			 * offset in next step.
-			 */
-			offset = rounddown(offset + trx->length, blocksize);
+			/* Jump to the end of TRX */
+			offset = roundup(offset + trx->length, blocksize);
+			/* Next loop iteration will increase the offset */
+			offset -= blocksize;
 			continue;
 		}
 
@@ -254,10 +256,11 @@ static int bcm47xxpart_parse(struct mtd_
 		}
 
 		/* Read middle of the block */
-		if (mtd_read(master, offset + 0x8000, 0x4,
-			     &bytes_read, (uint8_t *)buf) < 0) {
-			pr_err("mtd_read error while parsing (offset: 0x%X)!\n",
-			       offset);
+		err = mtd_read(master, offset + 0x8000, 0x4, &bytes_read,
+			       (uint8_t *)buf);
+		if (err && !mtd_is_bitflip(err)) {
+			pr_err("mtd_read error while parsing (offset: 0x%X): %d\n",
+			       offset, err);
 			continue;
 		}
 
@@ -277,10 +280,11 @@ static int bcm47xxpart_parse(struct mtd_
 		}
 
 		offset = master->size - possible_nvram_sizes[i];
-		if (mtd_read(master, offset, 0x4, &bytes_read,
-			     (uint8_t *)buf) < 0) {
-			pr_err("mtd_read error while reading at offset 0x%X!\n",
-			       offset);
+		err = mtd_read(master, offset, 0x4, &bytes_read,
+			       (uint8_t *)buf);
+		if (err && !mtd_is_bitflip(err)) {
+			pr_err("mtd_read error while reading (offset 0x%X): %d\n",
+			       offset, err);
 			continue;
 		}
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/mtd/chips/Kconfig linux-libre-4.4.107-gnu/drivers/mtd/chips/Kconfig
--- linux-libre-4.4-gnu/drivers/mtd/chips/Kconfig	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/mtd/chips/Kconfig	2017-12-20 04:05:01.000000000 -0500
@@ -111,6 +111,7 @@ config MTD_MAP_BANK_WIDTH_16
 
 config MTD_MAP_BANK_WIDTH_32
 	bool "Support 256-bit buswidth" if MTD_CFI_GEOMETRY
+	select MTD_COMPLEX_MAPPINGS if HAS_IOMEM
 	default n
 	help
 	  If you wish to support CFI devices on a physical bus which is
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/mtd/maps/pmcmsp-flash.c linux-libre-4.4.107-gnu/drivers/mtd/maps/pmcmsp-flash.c
--- linux-libre-4.4-gnu/drivers/mtd/maps/pmcmsp-flash.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/mtd/maps/pmcmsp-flash.c	2017-12-20 04:05:01.000000000 -0500
@@ -75,15 +75,15 @@ static int __init init_msp_flash(void)
 
 	printk(KERN_NOTICE "Found %d PMC flash devices\n", fcnt);
 
-	msp_flash = kmalloc(fcnt * sizeof(struct map_info *), GFP_KERNEL);
+	msp_flash = kcalloc(fcnt, sizeof(*msp_flash), GFP_KERNEL);
 	if (!msp_flash)
 		return -ENOMEM;
 
-	msp_parts = kmalloc(fcnt * sizeof(struct mtd_partition *), GFP_KERNEL);
+	msp_parts = kcalloc(fcnt, sizeof(*msp_parts), GFP_KERNEL);
 	if (!msp_parts)
 		goto free_msp_flash;
 
-	msp_maps = kcalloc(fcnt, sizeof(struct mtd_info), GFP_KERNEL);
+	msp_maps = kcalloc(fcnt, sizeof(*msp_maps), GFP_KERNEL);
 	if (!msp_maps)
 		goto free_msp_parts;
 
@@ -139,15 +139,13 @@ static int __init init_msp_flash(void)
 		}
 
 		msp_maps[i].bankwidth = 1;
-		msp_maps[i].name = kmalloc(7, GFP_KERNEL);
+		msp_maps[i].name = kstrndup(flash_name, 7, GFP_KERNEL);
 		if (!msp_maps[i].name) {
 			iounmap(msp_maps[i].virt);
 			kfree(msp_parts[i]);
 			goto cleanup_loop;
 		}
 
-		msp_maps[i].name = strncpy(msp_maps[i].name, flash_name, 7);
-
 		for (j = 0; j < pcnt; j++) {
 			part_name[5] = '0' + i;
 			part_name[7] = '0' + j;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/mtd/maps/sa1100-flash.c linux-libre-4.4.107-gnu/drivers/mtd/maps/sa1100-flash.c
--- linux-libre-4.4-gnu/drivers/mtd/maps/sa1100-flash.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/mtd/maps/sa1100-flash.c	2017-12-20 04:05:01.000000000 -0500
@@ -230,8 +230,10 @@ static struct sa_info *sa1100_setup_mtd(
 
 		info->mtd = mtd_concat_create(cdev, info->num_subdev,
 					      plat->name);
-		if (info->mtd == NULL)
+		if (info->mtd == NULL) {
 			ret = -ENXIO;
+			goto err;
+		}
 	}
 	info->mtd->dev.parent = &pdev->dev;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/mtd/nand/brcmnand/brcmnand.c linux-libre-4.4.107-gnu/drivers/mtd/nand/brcmnand/brcmnand.c
--- linux-libre-4.4-gnu/drivers/mtd/nand/brcmnand/brcmnand.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/mtd/nand/brcmnand/brcmnand.c	2017-12-20 04:05:01.000000000 -0500
@@ -309,6 +309,36 @@ static const u16 brcmnand_regs_v60[] = {
 	[BRCMNAND_FC_BASE]		= 0x400,
 };
 
+/* BRCMNAND v7.1 */
+static const u16 brcmnand_regs_v71[] = {
+	[BRCMNAND_CMD_START]		=  0x04,
+	[BRCMNAND_CMD_EXT_ADDRESS]	=  0x08,
+	[BRCMNAND_CMD_ADDRESS]		=  0x0c,
+	[BRCMNAND_INTFC_STATUS]		=  0x14,
+	[BRCMNAND_CS_SELECT]		=  0x18,
+	[BRCMNAND_CS_XOR]		=  0x1c,
+	[BRCMNAND_LL_OP]		=  0x20,
+	[BRCMNAND_CS0_BASE]		=  0x50,
+	[BRCMNAND_CS1_BASE]		=     0,
+	[BRCMNAND_CORR_THRESHOLD]	=  0xdc,
+	[BRCMNAND_CORR_THRESHOLD_EXT]	=  0xe0,
+	[BRCMNAND_UNCORR_COUNT]		=  0xfc,
+	[BRCMNAND_CORR_COUNT]		= 0x100,
+	[BRCMNAND_CORR_EXT_ADDR]	= 0x10c,
+	[BRCMNAND_CORR_ADDR]		= 0x110,
+	[BRCMNAND_UNCORR_EXT_ADDR]	= 0x114,
+	[BRCMNAND_UNCORR_ADDR]		= 0x118,
+	[BRCMNAND_SEMAPHORE]		= 0x150,
+	[BRCMNAND_ID]			= 0x194,
+	[BRCMNAND_ID_EXT]		= 0x198,
+	[BRCMNAND_LL_RDATA]		= 0x19c,
+	[BRCMNAND_OOB_READ_BASE]	= 0x200,
+	[BRCMNAND_OOB_READ_10_BASE]	=     0,
+	[BRCMNAND_OOB_WRITE_BASE]	= 0x280,
+	[BRCMNAND_OOB_WRITE_10_BASE]	=     0,
+	[BRCMNAND_FC_BASE]		= 0x400,
+};
+
 enum brcmnand_cs_reg {
 	BRCMNAND_CS_CFG_EXT = 0,
 	BRCMNAND_CS_CFG,
@@ -404,7 +434,9 @@ static int brcmnand_revision_init(struct
 	}
 
 	/* Register offsets */
-	if (ctrl->nand_version >= 0x0600)
+	if (ctrl->nand_version >= 0x0701)
+		ctrl->reg_offsets = brcmnand_regs_v71;
+	else if (ctrl->nand_version >= 0x0600)
 		ctrl->reg_offsets = brcmnand_regs_v60;
 	else if (ctrl->nand_version >= 0x0500)
 		ctrl->reg_offsets = brcmnand_regs_v50;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/mtd/nand/davinci_nand.c linux-libre-4.4.107-gnu/drivers/mtd/nand/davinci_nand.c
--- linux-libre-4.4-gnu/drivers/mtd/nand/davinci_nand.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/mtd/nand/davinci_nand.c	2017-12-20 04:05:01.000000000 -0500
@@ -241,6 +241,9 @@ static void nand_davinci_hwctl_4bit(stru
 	unsigned long flags;
 	u32 val;
 
+	/* Reset ECC hardware */
+	davinci_nand_readl(info, NAND_4BIT_ECC1_OFFSET);
+
 	spin_lock_irqsave(&davinci_nand_lock, flags);
 
 	/* Start 4-bit ECC calculation for read/write */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/mtd/nand/Kconfig linux-libre-4.4.107-gnu/drivers/mtd/nand/Kconfig
--- linux-libre-4.4-gnu/drivers/mtd/nand/Kconfig	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/mtd/nand/Kconfig	2017-12-20 04:05:01.000000000 -0500
@@ -527,7 +527,7 @@ config MTD_NAND_FSMC
 	  Flexible Static Memory Controller (FSMC)
 
 config MTD_NAND_XWAY
-	tristate "Support for NAND on Lantiq XWAY SoC"
+	bool "Support for NAND on Lantiq XWAY SoC"
 	depends on LANTIQ && SOC_TYPE_XWAY
 	select MTD_NAND_PLATFORM
 	help
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/mtd/nand/nand_base.c linux-libre-4.4.107-gnu/drivers/mtd/nand/nand_base.c
--- linux-libre-4.4-gnu/drivers/mtd/nand/nand_base.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/mtd/nand/nand_base.c	2017-12-20 04:05:01.000000000 -0500
@@ -2586,7 +2586,7 @@ static int nand_do_write_ops(struct mtd_
 		int cached = writelen > bytes && page != blockmask;
 		uint8_t *wbuf = buf;
 		int use_bufpoi;
-		int part_pagewr = (column || writelen < (mtd->writesize - 1));
+		int part_pagewr = (column || writelen < mtd->writesize);
 
 		if (part_pagewr)
 			use_bufpoi = 1;
@@ -2663,15 +2663,18 @@ static int panic_nand_write(struct mtd_i
 			    size_t *retlen, const uint8_t *buf)
 {
 	struct nand_chip *chip = mtd->priv;
+	int chipnr = (int)(to >> chip->chip_shift);
 	struct mtd_oob_ops ops;
 	int ret;
 
-	/* Wait for the device to get ready */
-	panic_nand_wait(mtd, chip, 400);
-
 	/* Grab the device */
 	panic_nand_get_device(chip, mtd, FL_WRITING);
 
+	chip->select_chip(mtd, chipnr);
+
+	/* Wait for the device to get ready */
+	panic_nand_wait(mtd, chip, 400);
+
 	memset(&ops, 0, sizeof(ops));
 	ops.len = len;
 	ops.datbuf = (uint8_t *)buf;
@@ -3979,7 +3982,6 @@ static int nand_dt_init(struct mtd_info
  * This is the first phase of the normal nand_scan() function. It reads the
  * flash ID and sets up MTD fields accordingly.
  *
- * The mtd->owner field must be set to the module of the caller.
  */
 int nand_scan_ident(struct mtd_info *mtd, int maxchips,
 		    struct nand_flash_dev *table)
@@ -3995,6 +3997,9 @@ int nand_scan_ident(struct mtd_info *mtd
 			return ret;
 	}
 
+	if (!mtd->name && mtd->dev.parent)
+		mtd->name = dev_name(mtd->dev.parent);
+
 	/* Set the default functions */
 	nand_set_defaults(chip, chip->options & NAND_BUSWIDTH_16);
 
@@ -4400,19 +4405,12 @@ EXPORT_SYMBOL(nand_scan_tail);
  *
  * This fills out all the uninitialized function pointers with the defaults.
  * The flash ID is read and the mtd/chip structures are filled with the
- * appropriate values. The mtd->owner field must be set to the module of the
- * caller.
+ * appropriate values.
  */
 int nand_scan(struct mtd_info *mtd, int maxchips)
 {
 	int ret;
 
-	/* Many callers got this wrong, so check for it for a while... */
-	if (!mtd->owner && caller_is_module()) {
-		pr_crit("%s called with NULL mtd->owner!\n", __func__);
-		BUG();
-	}
-
 	ret = nand_scan_ident(mtd, maxchips, NULL);
 	if (!ret)
 		ret = nand_scan_tail(mtd);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/mtd/onenand/onenand_base.c linux-libre-4.4.107-gnu/drivers/mtd/onenand/onenand_base.c
--- linux-libre-4.4-gnu/drivers/mtd/onenand/onenand_base.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/mtd/onenand/onenand_base.c	2017-12-20 04:05:01.000000000 -0500
@@ -2599,6 +2599,7 @@ static int onenand_default_block_markbad
  */
 static int onenand_block_markbad(struct mtd_info *mtd, loff_t ofs)
 {
+	struct onenand_chip *this = mtd->priv;
 	int ret;
 
 	ret = onenand_block_isbad(mtd, ofs);
@@ -2610,7 +2611,7 @@ static int onenand_block_markbad(struct
 	}
 
 	onenand_get_device(mtd, FL_WRITING);
-	ret = mtd_block_markbad(mtd, ofs);
+	ret = this->block_markbad(mtd, ofs);
 	onenand_release_device(mtd);
 	return ret;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/mtd/spi-nor/spi-nor.c linux-libre-4.4.107-gnu/drivers/mtd/spi-nor/spi-nor.c
--- linux-libre-4.4-gnu/drivers/mtd/spi-nor/spi-nor.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/mtd/spi-nor/spi-nor.c	2017-12-20 04:05:01.000000000 -0500
@@ -1057,6 +1057,13 @@ static int spansion_quad_enable(struct s
 		return -EINVAL;
 	}
 
+	ret = spi_nor_wait_till_ready(nor);
+	if (ret) {
+		dev_err(nor->dev,
+			"timeout while writing configuration register\n");
+		return ret;
+	}
+
 	/* read back and check it */
 	ret = read_cr(nor);
 	if (!(ret > 0 && (ret & CR_QUAD_EN_SPAN))) {
@@ -1067,45 +1074,6 @@ static int spansion_quad_enable(struct s
 	return 0;
 }
 
-static int micron_quad_enable(struct spi_nor *nor)
-{
-	int ret;
-	u8 val;
-
-	ret = nor->read_reg(nor, SPINOR_OP_RD_EVCR, &val, 1);
-	if (ret < 0) {
-		dev_err(nor->dev, "error %d reading EVCR\n", ret);
-		return ret;
-	}
-
-	write_enable(nor);
-
-	/* set EVCR, enable quad I/O */
-	nor->cmd_buf[0] = val & ~EVCR_QUAD_EN_MICRON;
-	ret = nor->write_reg(nor, SPINOR_OP_WD_EVCR, nor->cmd_buf, 1);
-	if (ret < 0) {
-		dev_err(nor->dev, "error while writing EVCR register\n");
-		return ret;
-	}
-
-	ret = spi_nor_wait_till_ready(nor);
-	if (ret)
-		return ret;
-
-	/* read EVCR and check it */
-	ret = nor->read_reg(nor, SPINOR_OP_RD_EVCR, &val, 1);
-	if (ret < 0) {
-		dev_err(nor->dev, "error %d reading EVCR\n", ret);
-		return ret;
-	}
-	if (val & EVCR_QUAD_EN_MICRON) {
-		dev_err(nor->dev, "Micron EVCR Quad bit not clear\n");
-		return -EINVAL;
-	}
-
-	return 0;
-}
-
 static int set_quad_mode(struct spi_nor *nor, const struct flash_info *info)
 {
 	int status;
@@ -1119,12 +1087,7 @@ static int set_quad_mode(struct spi_nor
 		}
 		return status;
 	case SNOR_MFR_MICRON:
-		status = micron_quad_enable(nor);
-		if (status) {
-			dev_err(nor->dev, "Micron quad-read not enabled\n");
-			return -EINVAL;
-		}
-		return status;
+		return 0;
 	default:
 		status = spansion_quad_enable(nor);
 		if (status) {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/mtd/ubi/build.c linux-libre-4.4.107-gnu/drivers/mtd/ubi/build.c
--- linux-libre-4.4-gnu/drivers/mtd/ubi/build.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/mtd/ubi/build.c	2017-12-20 04:05:01.000000000 -0500
@@ -869,7 +869,7 @@ int ubi_attach_mtd_dev(struct mtd_info *
 	for (i = 0; i < UBI_MAX_DEVICES; i++) {
 		ubi = ubi_devices[i];
 		if (ubi && mtd->index == ubi->mtd->index) {
-			ubi_err(ubi, "mtd%d is already attached to ubi%d",
+			pr_err("ubi: mtd%d is already attached to ubi%d",
 				mtd->index, i);
 			return -EEXIST;
 		}
@@ -884,7 +884,7 @@ int ubi_attach_mtd_dev(struct mtd_info *
 	 * no sense to attach emulated MTD devices, so we prohibit this.
 	 */
 	if (mtd->type == MTD_UBIVOLUME) {
-		ubi_err(ubi, "refuse attaching mtd%d - it is already emulated on top of UBI",
+		pr_err("ubi: refuse attaching mtd%d - it is already emulated on top of UBI",
 			mtd->index);
 		return -EINVAL;
 	}
@@ -895,7 +895,7 @@ int ubi_attach_mtd_dev(struct mtd_info *
 			if (!ubi_devices[ubi_num])
 				break;
 		if (ubi_num == UBI_MAX_DEVICES) {
-			ubi_err(ubi, "only %d UBI devices may be created",
+			pr_err("ubi: only %d UBI devices may be created",
 				UBI_MAX_DEVICES);
 			return -ENFILE;
 		}
@@ -905,7 +905,7 @@ int ubi_attach_mtd_dev(struct mtd_info *
 
 		/* Make sure ubi_num is not busy */
 		if (ubi_devices[ubi_num]) {
-			ubi_err(ubi, "already exists");
+			pr_err("ubi: ubi%i already exists", ubi_num);
 			return -EEXIST;
 		}
 	}
@@ -987,6 +987,9 @@ int ubi_attach_mtd_dev(struct mtd_info *
 			goto out_detach;
 	}
 
+	/* Make device "available" before it becomes accessible via sysfs */
+	ubi_devices[ubi_num] = ubi;
+
 	err = uif_init(ubi, &ref);
 	if (err)
 		goto out_detach;
@@ -1031,7 +1034,6 @@ int ubi_attach_mtd_dev(struct mtd_info *
 	wake_up_process(ubi->bgt_thread);
 	spin_unlock(&ubi->wl_lock);
 
-	ubi_devices[ubi_num] = ubi;
 	ubi_notify_all(ubi, UBI_VOLUME_ADDED, NULL);
 	return ubi_num;
 
@@ -1042,6 +1044,7 @@ out_uif:
 	ubi_assert(ref);
 	uif_close(ubi);
 out_detach:
+	ubi_devices[ubi_num] = NULL;
 	ubi_wl_close(ubi);
 	ubi_free_internal_volumes(ubi);
 	vfree(ubi->vtbl);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/mtd/ubi/eba.c linux-libre-4.4.107-gnu/drivers/mtd/ubi/eba.c
--- linux-libre-4.4-gnu/drivers/mtd/ubi/eba.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/mtd/ubi/eba.c	2017-12-20 04:05:01.000000000 -0500
@@ -426,8 +426,25 @@ retry:
 						 pnum, vol_id, lnum);
 					err = -EBADMSG;
 				} else {
-					err = -EINVAL;
-					ubi_ro_mode(ubi);
+					/*
+					 * Ending up here in the non-Fastmap case
+					 * is a clear bug as the VID header had to
+					 * be present at scan time to have it referenced.
+					 * With fastmap the story is more complicated.
+					 * Fastmap has the mapping info without the need
+					 * of a full scan. So the LEB could have been
+					 * unmapped, Fastmap cannot know this and keeps
+					 * the LEB referenced.
+					 * This is valid and works as the layer above UBI
+					 * has to do bookkeeping about used/referenced
+					 * LEBs in any case.
+					 */
+					if (ubi->fast_attach) {
+						err = -EBADMSG;
+					} else {
+						err = -EINVAL;
+						ubi_ro_mode(ubi);
+					}
 				}
 			}
 			goto out_free;
@@ -558,6 +575,7 @@ static int recover_peb(struct ubi_device
 	int err, idx = vol_id2idx(ubi, vol_id), new_pnum, data_size, tries = 0;
 	struct ubi_volume *vol = ubi->volumes[idx];
 	struct ubi_vid_hdr *vid_hdr;
+	uint32_t crc;
 
 	vid_hdr = ubi_zalloc_vid_hdr(ubi, GFP_NOFS);
 	if (!vid_hdr)
@@ -582,14 +600,8 @@ retry:
 		goto out_put;
 	}
 
-	vid_hdr->sqnum = cpu_to_be64(ubi_next_sqnum(ubi));
-	err = ubi_io_write_vid_hdr(ubi, new_pnum, vid_hdr);
-	if (err) {
-		up_read(&ubi->fm_eba_sem);
-		goto write_error;
-	}
+	ubi_assert(vid_hdr->vol_type == UBI_VID_DYNAMIC);
 
-	data_size = offset + len;
 	mutex_lock(&ubi->buf_mutex);
 	memset(ubi->peb_buf + offset, 0xFF, len);
 
@@ -604,6 +616,19 @@ retry:
 
 	memcpy(ubi->peb_buf + offset, buf, len);
 
+	data_size = offset + len;
+	crc = crc32(UBI_CRC32_INIT, ubi->peb_buf, data_size);
+	vid_hdr->sqnum = cpu_to_be64(ubi_next_sqnum(ubi));
+	vid_hdr->copy_flag = 1;
+	vid_hdr->data_size = cpu_to_be32(data_size);
+	vid_hdr->data_crc = cpu_to_be32(crc);
+	err = ubi_io_write_vid_hdr(ubi, new_pnum, vid_hdr);
+	if (err) {
+		mutex_unlock(&ubi->buf_mutex);
+		up_read(&ubi->fm_eba_sem);
+		goto write_error;
+	}
+
 	err = ubi_io_write_data(ubi, ubi->peb_buf, new_pnum, 0, data_size);
 	if (err) {
 		mutex_unlock(&ubi->buf_mutex);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/mtd/ubi/fastmap.c linux-libre-4.4.107-gnu/drivers/mtd/ubi/fastmap.c
--- linux-libre-4.4-gnu/drivers/mtd/ubi/fastmap.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/mtd/ubi/fastmap.c	2017-12-20 04:05:01.000000000 -0500
@@ -513,10 +513,11 @@ static int scan_pool(struct ubi_device *
 			unsigned long long ec = be64_to_cpu(ech->ec);
 			unmap_peb(ai, pnum);
 			dbg_bld("Adding PEB to free: %i", pnum);
+
 			if (err == UBI_IO_FF_BITFLIPS)
-				add_aeb(ai, free, pnum, ec, 1);
-			else
-				add_aeb(ai, free, pnum, ec, 0);
+				scrub = 1;
+
+			add_aeb(ai, free, pnum, ec, scrub);
 			continue;
 		} else if (err == 0 || err == UBI_IO_BITFLIPS) {
 			dbg_bld("Found non empty PEB:%i in pool", pnum);
@@ -748,11 +749,11 @@ static int ubi_attach_fastmap(struct ubi
 			     fmvhdr->vol_type,
 			     be32_to_cpu(fmvhdr->last_eb_bytes));
 
-		if (!av)
-			goto fail_bad;
-		if (PTR_ERR(av) == -EINVAL) {
-			ubi_err(ubi, "volume (ID %i) already exists",
-				fmvhdr->vol_id);
+		if (IS_ERR(av)) {
+			if (PTR_ERR(av) == -EEXIST)
+				ubi_err(ubi, "volume (ID %i) already exists",
+					fmvhdr->vol_id);
+
 			goto fail_bad;
 		}
 
@@ -1058,6 +1059,7 @@ int ubi_scan_fastmap(struct ubi_device *
 	ubi_msg(ubi, "fastmap WL pool size: %d",
 		ubi->fm_wl_pool.max_size);
 	ubi->fm_disabled = 0;
+	ubi->fast_attach = 1;
 
 	ubi_free_vid_hdr(ubi, vh);
 	kfree(ech);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/mtd/ubi/ubi.h linux-libre-4.4.107-gnu/drivers/mtd/ubi/ubi.h
--- linux-libre-4.4-gnu/drivers/mtd/ubi/ubi.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/mtd/ubi/ubi.h	2017-12-20 04:05:01.000000000 -0500
@@ -462,6 +462,7 @@ struct ubi_debug_info {
  * @fm_eba_sem: allows ubi_update_fastmap() to block EBA table changes
  * @fm_work: fastmap work queue
  * @fm_work_scheduled: non-zero if fastmap work was scheduled
+ * @fast_attach: non-zero if UBI was attached by fastmap
  *
  * @used: RB-tree of used physical eraseblocks
  * @erroneous: RB-tree of erroneous used physical eraseblocks
@@ -570,6 +571,7 @@ struct ubi_device {
 	size_t fm_size;
 	struct work_struct fm_work;
 	int fm_work_scheduled;
+	int fast_attach;
 
 	/* Wear-leveling sub-system's stuff */
 	struct rb_root used;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/mtd/ubi/upd.c linux-libre-4.4.107-gnu/drivers/mtd/ubi/upd.c
--- linux-libre-4.4-gnu/drivers/mtd/ubi/upd.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/mtd/ubi/upd.c	2017-12-20 04:05:01.000000000 -0500
@@ -148,11 +148,11 @@ int ubi_start_update(struct ubi_device *
 			return err;
 	}
 
-	if (bytes == 0) {
-		err = ubi_wl_flush(ubi, UBI_ALL, UBI_ALL);
-		if (err)
-			return err;
+	err = ubi_wl_flush(ubi, UBI_ALL, UBI_ALL);
+	if (err)
+		return err;
 
+	if (bytes == 0) {
 		err = clear_update_marker(ubi, vol, 0);
 		if (err)
 			return err;
@@ -193,7 +193,7 @@ int ubi_start_leb_change(struct ubi_devi
 	vol->changing_leb = 1;
 	vol->ch_lnum = req->lnum;
 
-	vol->upd_buf = vmalloc(req->bytes);
+	vol->upd_buf = vmalloc(ALIGN((int)req->bytes, ubi->min_io_size));
 	if (!vol->upd_buf)
 		return -ENOMEM;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/mtd/ubi/vmt.c linux-libre-4.4.107-gnu/drivers/mtd/ubi/vmt.c
--- linux-libre-4.4-gnu/drivers/mtd/ubi/vmt.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/mtd/ubi/vmt.c	2017-12-20 04:05:01.000000000 -0500
@@ -488,13 +488,6 @@ int ubi_resize_volume(struct ubi_volume_
 		spin_unlock(&ubi->volumes_lock);
 	}
 
-	/* Change volume table record */
-	vtbl_rec = ubi->vtbl[vol_id];
-	vtbl_rec.reserved_pebs = cpu_to_be32(reserved_pebs);
-	err = ubi_change_vtbl_record(ubi, vol_id, &vtbl_rec);
-	if (err)
-		goto out_acc;
-
 	if (pebs < 0) {
 		for (i = 0; i < -pebs; i++) {
 			err = ubi_eba_unmap_leb(ubi, vol, reserved_pebs + i);
@@ -512,6 +505,24 @@ int ubi_resize_volume(struct ubi_volume_
 		spin_unlock(&ubi->volumes_lock);
 	}
 
+	/*
+	 * When we shrink a volume we have to flush all pending (erase) work.
+	 * Otherwise it can happen that upon next attach UBI finds a LEB with
+	 * lnum > highest_lnum and refuses to attach.
+	 */
+	if (pebs < 0) {
+		err = ubi_wl_flush(ubi, vol_id, UBI_ALL);
+		if (err)
+			goto out_acc;
+	}
+
+	/* Change volume table record */
+	vtbl_rec = ubi->vtbl[vol_id];
+	vtbl_rec.reserved_pebs = cpu_to_be32(reserved_pebs);
+	err = ubi_change_vtbl_record(ubi, vol_id, &vtbl_rec);
+	if (err)
+		goto out_acc;
+
 	vol->reserved_pebs = reserved_pebs;
 	if (vol->vol_type == UBI_DYNAMIC_VOLUME) {
 		vol->used_ebs = reserved_pebs;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/mtd/ubi/wl.c linux-libre-4.4.107-gnu/drivers/mtd/ubi/wl.c
--- linux-libre-4.4-gnu/drivers/mtd/ubi/wl.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/mtd/ubi/wl.c	2017-12-20 04:05:01.000000000 -0500
@@ -643,7 +643,7 @@ static int wear_leveling_worker(struct u
 				int shutdown)
 {
 	int err, scrubbing = 0, torture = 0, protect = 0, erroneous = 0;
-	int vol_id = -1, lnum = -1;
+	int erase = 0, keep = 0, vol_id = -1, lnum = -1;
 #ifdef CONFIG_MTD_UBI_FASTMAP
 	int anchor = wrk->anchor;
 #endif
@@ -777,6 +777,16 @@ static int wear_leveling_worker(struct u
 			       e1->pnum);
 			scrubbing = 1;
 			goto out_not_moved;
+		} else if (ubi->fast_attach && err == UBI_IO_BAD_HDR_EBADMSG) {
+			/*
+			 * While a full scan would detect interrupted erasures
+			 * at attach time we can face them here when attached from
+			 * Fastmap.
+			 */
+			dbg_wl("PEB %d has ECC errors, maybe from an interrupted erasure",
+			       e1->pnum);
+			erase = 1;
+			goto out_not_moved;
 		}
 
 		ubi_err(ubi, "error %d while reading VID header from PEB %d",
@@ -810,6 +820,7 @@ static int wear_leveling_worker(struct u
 			 * Target PEB had bit-flips or write error - torture it.
 			 */
 			torture = 1;
+			keep = 1;
 			goto out_not_moved;
 		}
 
@@ -895,7 +906,7 @@ out_not_moved:
 		ubi->erroneous_peb_count += 1;
 	} else if (scrubbing)
 		wl_tree_add(e1, &ubi->scrub);
-	else
+	else if (keep)
 		wl_tree_add(e1, &ubi->used);
 	ubi_assert(!ubi->move_to_put);
 	ubi->move_from = ubi->move_to = NULL;
@@ -907,6 +918,12 @@ out_not_moved:
 	if (err)
 		goto out_ro;
 
+	if (erase) {
+		err = do_sync_erase(ubi, e1, vol_id, lnum, 1);
+		if (err)
+			goto out_ro;
+	}
+
 	mutex_unlock(&ubi->move_mutex);
 	return 0;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/appletalk/ipddp.c linux-libre-4.4.107-gnu/drivers/net/appletalk/ipddp.c
--- linux-libre-4.4-gnu/drivers/net/appletalk/ipddp.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/appletalk/ipddp.c	2017-12-20 04:05:01.000000000 -0500
@@ -191,7 +191,7 @@ static netdev_tx_t ipddp_xmit(struct sk_
  */
 static int ipddp_create(struct ipddp_route *new_rt)
 {
-        struct ipddp_route *rt = kmalloc(sizeof(*rt), GFP_KERNEL);
+        struct ipddp_route *rt = kzalloc(sizeof(*rt), GFP_KERNEL);
 
         if (rt == NULL)
                 return -ENOMEM;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/bonding/bond_main.c linux-libre-4.4.107-gnu/drivers/net/bonding/bond_main.c
--- linux-libre-4.4-gnu/drivers/net/bonding/bond_main.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/bonding/bond_main.c	2017-12-20 04:05:01.000000000 -0500
@@ -214,6 +214,8 @@ static void bond_uninit(struct net_devic
 static struct rtnl_link_stats64 *bond_get_stats(struct net_device *bond_dev,
 						struct rtnl_link_stats64 *stats);
 static void bond_slave_arr_handler(struct work_struct *work);
+static bool bond_time_in_interval(struct bonding *bond, unsigned long last_act,
+				  int mod);
 
 /*---------------------------- General routines -----------------------------*/
 
@@ -1207,7 +1209,6 @@ static int bond_master_upper_dev_link(st
 	err = netdev_master_upper_dev_link_private(slave_dev, bond_dev, slave);
 	if (err)
 		return err;
-	slave_dev->flags |= IFF_SLAVE;
 	rtmsg_ifinfo(RTM_NEWLINK, slave_dev, IFF_SLAVE, GFP_KERNEL);
 	return 0;
 }
@@ -1316,9 +1317,10 @@ int bond_enslave(struct net_device *bond
 			    slave_dev->name);
 	}
 
-	/* already enslaved */
-	if (slave_dev->flags & IFF_SLAVE) {
-		netdev_dbg(bond_dev, "Error: Device was already enslaved\n");
+	/* already in-use? */
+	if (netdev_is_rx_handler_busy(slave_dev)) {
+		netdev_err(bond_dev,
+			   "Error: Device is in use and cannot be enslaved\n");
 		return -EBUSY;
 	}
 
@@ -1465,6 +1467,9 @@ int bond_enslave(struct net_device *bond
 		}
 	}
 
+	/* set slave flag before open to prevent IPv6 addrconf */
+	slave_dev->flags |= IFF_SLAVE;
+
 	/* open the slave since the application closed it */
 	res = dev_open(slave_dev);
 	if (res) {
@@ -1725,6 +1730,7 @@ err_close:
 	dev_close(slave_dev);
 
 err_restore_mac:
+	slave_dev->flags &= ~IFF_SLAVE;
 	if (!bond->params.fail_over_mac ||
 	    BOND_MODE(bond) != BOND_MODE_ACTIVEBACKUP) {
 		/* XXX TODO - fom follow mode needs to change master's
@@ -2415,7 +2421,7 @@ int bond_arp_rcv(const struct sk_buff *s
 		 struct slave *slave)
 {
 	struct arphdr *arp = (struct arphdr *)skb->data;
-	struct slave *curr_active_slave;
+	struct slave *curr_active_slave, *curr_arp_slave;
 	unsigned char *arp_ptr;
 	__be32 sip, tip;
 	int alen, is_arp = skb->protocol == __cpu_to_be16(ETH_P_ARP);
@@ -2462,26 +2468,41 @@ int bond_arp_rcv(const struct sk_buff *s
 		     &sip, &tip);
 
 	curr_active_slave = rcu_dereference(bond->curr_active_slave);
+	curr_arp_slave = rcu_dereference(bond->current_arp_slave);
 
-	/* Backup slaves won't see the ARP reply, but do come through
-	 * here for each ARP probe (so we swap the sip/tip to validate
-	 * the probe).  In a "redundant switch, common router" type of
-	 * configuration, the ARP probe will (hopefully) travel from
-	 * the active, through one switch, the router, then the other
-	 * switch before reaching the backup.
+	/* We 'trust' the received ARP enough to validate it if:
 	 *
-	 * We 'trust' the arp requests if there is an active slave and
-	 * it received valid arp reply(s) after it became active. This
-	 * is done to avoid endless looping when we can't reach the
+	 * (a) the slave receiving the ARP is active (which includes the
+	 * current ARP slave, if any), or
+	 *
+	 * (b) the receiving slave isn't active, but there is a currently
+	 * active slave and it received valid arp reply(s) after it became
+	 * the currently active slave, or
+	 *
+	 * (c) there is an ARP slave that sent an ARP during the prior ARP
+	 * interval, and we receive an ARP reply on any slave.  We accept
+	 * these because switch FDB update delays may deliver the ARP
+	 * reply to a slave other than the sender of the ARP request.
+	 *
+	 * Note: for (b), backup slaves are receiving the broadcast ARP
+	 * request, not a reply.  This request passes from the sending
+	 * slave through the L2 switch(es) to the receiving slave.  Since
+	 * this is checking the request, sip/tip are swapped for
+	 * validation.
+	 *
+	 * This is done to avoid endless looping when we can't reach the
 	 * arp_ip_target and fool ourselves with our own arp requests.
 	 */
-
 	if (bond_is_active_slave(slave))
 		bond_validate_arp(bond, slave, sip, tip);
 	else if (curr_active_slave &&
 		 time_after(slave_last_rx(bond, curr_active_slave),
 			    curr_active_slave->last_link_up))
 		bond_validate_arp(bond, slave, tip, sip);
+	else if (curr_arp_slave && (arp->ar_op == htons(ARPOP_REPLY)) &&
+		 bond_time_in_interval(bond,
+				       dev_trans_start(curr_arp_slave->dev), 1))
+		bond_validate_arp(bond, slave, sip, tip);
 
 out_unlock:
 	if (arp != (struct arphdr *)skb->data)
@@ -3145,7 +3166,7 @@ u32 bond_xmit_hash(struct bonding *bond,
 	hash ^= (hash >> 16);
 	hash ^= (hash >> 8);
 
-	return hash;
+	return hash >> 1;
 }
 
 /*-------------------------- Device entry points ----------------------------*/
@@ -3240,6 +3261,30 @@ static int bond_close(struct net_device
 	return 0;
 }
 
+/* fold stats, assuming all rtnl_link_stats64 fields are u64, but
+ * that some drivers can provide 32bit values only.
+ */
+static void bond_fold_stats(struct rtnl_link_stats64 *_res,
+			    const struct rtnl_link_stats64 *_new,
+			    const struct rtnl_link_stats64 *_old)
+{
+	const u64 *new = (const u64 *)_new;
+	const u64 *old = (const u64 *)_old;
+	u64 *res = (u64 *)_res;
+	int i;
+
+	for (i = 0; i < sizeof(*_res) / sizeof(u64); i++) {
+		u64 nv = new[i];
+		u64 ov = old[i];
+
+		/* detects if this particular field is 32bit only */
+		if (((nv | ov) >> 32) == 0)
+			res[i] += (u32)nv - (u32)ov;
+		else
+			res[i] += nv - ov;
+	}
+}
+
 static struct rtnl_link_stats64 *bond_get_stats(struct net_device *bond_dev,
 						struct rtnl_link_stats64 *stats)
 {
@@ -3248,43 +3293,23 @@ static struct rtnl_link_stats64 *bond_ge
 	struct list_head *iter;
 	struct slave *slave;
 
+	spin_lock(&bond->stats_lock);
 	memcpy(stats, &bond->bond_stats, sizeof(*stats));
 
-	bond_for_each_slave(bond, slave, iter) {
-		const struct rtnl_link_stats64 *sstats =
+	rcu_read_lock();
+	bond_for_each_slave_rcu(bond, slave, iter) {
+		const struct rtnl_link_stats64 *new =
 			dev_get_stats(slave->dev, &temp);
-		struct rtnl_link_stats64 *pstats = &slave->slave_stats;
-
-		stats->rx_packets +=  sstats->rx_packets - pstats->rx_packets;
-		stats->rx_bytes += sstats->rx_bytes - pstats->rx_bytes;
-		stats->rx_errors += sstats->rx_errors - pstats->rx_errors;
-		stats->rx_dropped += sstats->rx_dropped - pstats->rx_dropped;
-
-		stats->tx_packets += sstats->tx_packets - pstats->tx_packets;;
-		stats->tx_bytes += sstats->tx_bytes - pstats->tx_bytes;
-		stats->tx_errors += sstats->tx_errors - pstats->tx_errors;
-		stats->tx_dropped += sstats->tx_dropped - pstats->tx_dropped;
 
-		stats->multicast += sstats->multicast - pstats->multicast;
-		stats->collisions += sstats->collisions - pstats->collisions;
-
-		stats->rx_length_errors += sstats->rx_length_errors - pstats->rx_length_errors;
-		stats->rx_over_errors += sstats->rx_over_errors - pstats->rx_over_errors;
-		stats->rx_crc_errors += sstats->rx_crc_errors - pstats->rx_crc_errors;
-		stats->rx_frame_errors += sstats->rx_frame_errors - pstats->rx_frame_errors;
-		stats->rx_fifo_errors += sstats->rx_fifo_errors - pstats->rx_fifo_errors;
-		stats->rx_missed_errors += sstats->rx_missed_errors - pstats->rx_missed_errors;
-
-		stats->tx_aborted_errors += sstats->tx_aborted_errors - pstats->tx_aborted_errors;
-		stats->tx_carrier_errors += sstats->tx_carrier_errors - pstats->tx_carrier_errors;
-		stats->tx_fifo_errors += sstats->tx_fifo_errors - pstats->tx_fifo_errors;
-		stats->tx_heartbeat_errors += sstats->tx_heartbeat_errors - pstats->tx_heartbeat_errors;
-		stats->tx_window_errors += sstats->tx_window_errors - pstats->tx_window_errors;
+		bond_fold_stats(stats, new, &slave->slave_stats);
 
 		/* save off the slave stats for the next run */
-		memcpy(pstats, sstats, sizeof(*sstats));
+		memcpy(&slave->slave_stats, new, sizeof(*new));
 	}
+	rcu_read_unlock();
+
 	memcpy(&bond->bond_stats, stats, sizeof(*stats));
+	spin_unlock(&bond->stats_lock);
 
 	return stats;
 }
@@ -4098,6 +4123,7 @@ void bond_setup(struct net_device *bond_
 	struct bonding *bond = netdev_priv(bond_dev);
 
 	spin_lock_init(&bond->mode_lock);
+	spin_lock_init(&bond->stats_lock);
 	bond->params = bonding_defaults;
 
 	/* Initialize pointers */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/bonding/bond_netlink.c linux-libre-4.4.107-gnu/drivers/net/bonding/bond_netlink.c
--- linux-libre-4.4-gnu/drivers/net/bonding/bond_netlink.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/bonding/bond_netlink.c	2017-12-20 04:05:01.000000000 -0500
@@ -446,7 +446,11 @@ static int bond_newlink(struct net *src_
 	if (err < 0)
 		return err;
 
-	return register_netdevice(bond_dev);
+	err = register_netdevice(bond_dev);
+
+	netif_carrier_off(bond_dev);
+
+	return err;
 }
 
 static size_t bond_get_size(const struct net_device *bond_dev)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/can/at91_can.c linux-libre-4.4.107-gnu/drivers/net/can/at91_can.c
--- linux-libre-4.4-gnu/drivers/net/can/at91_can.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/can/at91_can.c	2017-12-20 04:05:01.000000000 -0500
@@ -712,9 +712,10 @@ static int at91_poll_rx(struct net_devic
 
 	/* upper group completed, look again in lower */
 	if (priv->rx_next > get_mb_rx_low_last(priv) &&
-	    quota > 0 && mb > get_mb_rx_last(priv)) {
+	    mb > get_mb_rx_last(priv)) {
 		priv->rx_next = get_mb_rx_first(priv);
-		goto again;
+		if (quota > 0)
+			goto again;
 	}
 
 	return received;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/can/c_can/c_can.c linux-libre-4.4.107-gnu/drivers/net/can/c_can/c_can.c
--- linux-libre-4.4-gnu/drivers/net/can/c_can/c_can.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/can/c_can/c_can.c	2017-12-20 04:05:01.000000000 -0500
@@ -332,9 +332,23 @@ static void c_can_setup_tx_object(struct
 
 	priv->write_reg(priv, C_CAN_IFACE(MSGCTRL_REG, iface), ctrl);
 
-	for (i = 0; i < frame->can_dlc; i += 2) {
-		priv->write_reg(priv, C_CAN_IFACE(DATA1_REG, iface) + i / 2,
-				frame->data[i] | (frame->data[i + 1] << 8));
+	if (priv->type == BOSCH_D_CAN) {
+		u32 data = 0, dreg = C_CAN_IFACE(DATA1_REG, iface);
+
+		for (i = 0; i < frame->can_dlc; i += 4, dreg += 2) {
+			data = (u32)frame->data[i];
+			data |= (u32)frame->data[i + 1] << 8;
+			data |= (u32)frame->data[i + 2] << 16;
+			data |= (u32)frame->data[i + 3] << 24;
+			priv->write_reg32(priv, dreg, data);
+		}
+	} else {
+		for (i = 0; i < frame->can_dlc; i += 2) {
+			priv->write_reg(priv,
+					C_CAN_IFACE(DATA1_REG, iface) + i / 2,
+					frame->data[i] |
+					(frame->data[i + 1] << 8));
+		}
 	}
 }
 
@@ -402,10 +416,20 @@ static int c_can_read_msg_object(struct
 	} else {
 		int i, dreg = C_CAN_IFACE(DATA1_REG, iface);
 
-		for (i = 0; i < frame->can_dlc; i += 2, dreg ++) {
-			data = priv->read_reg(priv, dreg);
-			frame->data[i] = data;
-			frame->data[i + 1] = data >> 8;
+		if (priv->type == BOSCH_D_CAN) {
+			for (i = 0; i < frame->can_dlc; i += 4, dreg += 2) {
+				data = priv->read_reg32(priv, dreg);
+				frame->data[i] = data;
+				frame->data[i + 1] = data >> 8;
+				frame->data[i + 2] = data >> 16;
+				frame->data[i + 3] = data >> 24;
+			}
+		} else {
+			for (i = 0; i < frame->can_dlc; i += 2, dreg++) {
+				data = priv->read_reg(priv, dreg);
+				frame->data[i] = data;
+				frame->data[i + 1] = data >> 8;
+			}
 		}
 	}
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/can/c_can/c_can_pci.c linux-libre-4.4.107-gnu/drivers/net/can/c_can/c_can_pci.c
--- linux-libre-4.4-gnu/drivers/net/can/c_can/c_can_pci.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/can/c_can/c_can_pci.c	2017-12-20 04:05:01.000000000 -0500
@@ -161,6 +161,7 @@ static int c_can_pci_probe(struct pci_de
 
 	dev->irq = pdev->irq;
 	priv->base = addr;
+	priv->device = &pdev->dev;
 
 	if (!c_can_pci_data->freq) {
 		dev_err(&pdev->dev, "no clock frequency defined\n");
@@ -177,7 +178,6 @@ static int c_can_pci_probe(struct pci_de
 		break;
 	case BOSCH_D_CAN:
 		priv->regs = reg_map_d_can;
-		priv->can.ctrlmode_supported |= CAN_CTRLMODE_3_SAMPLES;
 		break;
 	default:
 		ret = -EINVAL;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/can/c_can/c_can_platform.c linux-libre-4.4.107-gnu/drivers/net/can/c_can/c_can_platform.c
--- linux-libre-4.4-gnu/drivers/net/can/c_can/c_can_platform.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/can/c_can/c_can_platform.c	2017-12-20 04:05:01.000000000 -0500
@@ -320,7 +320,6 @@ static int c_can_plat_probe(struct platf
 		break;
 	case BOSCH_D_CAN:
 		priv->regs = reg_map_d_can;
-		priv->can.ctrlmode_supported |= CAN_CTRLMODE_3_SAMPLES;
 		priv->read_reg = c_can_plat_read_reg_aligned_to_16bit;
 		priv->write_reg = c_can_plat_write_reg_aligned_to_16bit;
 		priv->read_reg32 = d_can_plat_read_reg32;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/can/dev.c linux-libre-4.4.107-gnu/drivers/net/can/dev.c
--- linux-libre-4.4-gnu/drivers/net/can/dev.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/can/dev.c	2017-12-20 04:05:01.000000000 -0500
@@ -21,6 +21,7 @@
 #include <linux/slab.h>
 #include <linux/netdevice.h>
 #include <linux/if_arp.h>
+#include <linux/workqueue.h>
 #include <linux/can.h>
 #include <linux/can/dev.h>
 #include <linux/can/skb.h>
@@ -471,9 +472,8 @@ EXPORT_SYMBOL_GPL(can_free_echo_skb);
 /*
  * CAN device restart for bus-off recovery
  */
-static void can_restart(unsigned long data)
+static void can_restart(struct net_device *dev)
 {
-	struct net_device *dev = (struct net_device *)data;
 	struct can_priv *priv = netdev_priv(dev);
 	struct net_device_stats *stats = &dev->stats;
 	struct sk_buff *skb;
@@ -513,6 +513,14 @@ restart:
 		netdev_err(dev, "Error %d during restart", err);
 }
 
+static void can_restart_work(struct work_struct *work)
+{
+	struct delayed_work *dwork = to_delayed_work(work);
+	struct can_priv *priv = container_of(dwork, struct can_priv, restart_work);
+
+	can_restart(priv->dev);
+}
+
 int can_restart_now(struct net_device *dev)
 {
 	struct can_priv *priv = netdev_priv(dev);
@@ -526,8 +534,8 @@ int can_restart_now(struct net_device *d
 	if (priv->state != CAN_STATE_BUS_OFF)
 		return -EBUSY;
 
-	/* Runs as soon as possible in the timer context */
-	mod_timer(&priv->restart_timer, jiffies);
+	cancel_delayed_work_sync(&priv->restart_work);
+	can_restart(dev);
 
 	return 0;
 }
@@ -548,8 +556,8 @@ void can_bus_off(struct net_device *dev)
 	netif_carrier_off(dev);
 
 	if (priv->restart_ms)
-		mod_timer(&priv->restart_timer,
-			  jiffies + (priv->restart_ms * HZ) / 1000);
+		schedule_delayed_work(&priv->restart_work,
+				      msecs_to_jiffies(priv->restart_ms));
 }
 EXPORT_SYMBOL_GPL(can_bus_off);
 
@@ -658,6 +666,7 @@ struct net_device *alloc_candev(int size
 		return NULL;
 
 	priv = netdev_priv(dev);
+	priv->dev = dev;
 
 	if (echo_skb_max) {
 		priv->echo_skb_max = echo_skb_max;
@@ -667,7 +676,7 @@ struct net_device *alloc_candev(int size
 
 	priv->state = CAN_STATE_STOPPED;
 
-	init_timer(&priv->restart_timer);
+	INIT_DELAYED_WORK(&priv->restart_work, can_restart_work);
 
 	return dev;
 }
@@ -696,11 +705,17 @@ int can_change_mtu(struct net_device *de
 	/* allow change of MTU according to the CANFD ability of the device */
 	switch (new_mtu) {
 	case CAN_MTU:
+		/* 'CANFD-only' controllers can not switch to CAN_MTU */
+		if (priv->ctrlmode_static & CAN_CTRLMODE_FD)
+			return -EINVAL;
+
 		priv->ctrlmode &= ~CAN_CTRLMODE_FD;
 		break;
 
 	case CANFD_MTU:
-		if (!(priv->ctrlmode_supported & CAN_CTRLMODE_FD))
+		/* check for potential CANFD ability */
+		if (!(priv->ctrlmode_supported & CAN_CTRLMODE_FD) &&
+		    !(priv->ctrlmode_static & CAN_CTRLMODE_FD))
 			return -EINVAL;
 
 		priv->ctrlmode |= CAN_CTRLMODE_FD;
@@ -742,8 +757,6 @@ int open_candev(struct net_device *dev)
 	if (!netif_carrier_ok(dev))
 		netif_carrier_on(dev);
 
-	setup_timer(&priv->restart_timer, can_restart, (unsigned long)dev);
-
 	return 0;
 }
 EXPORT_SYMBOL_GPL(open_candev);
@@ -758,7 +771,7 @@ void close_candev(struct net_device *dev
 {
 	struct can_priv *priv = netdev_priv(dev);
 
-	del_timer_sync(&priv->restart_timer);
+	cancel_delayed_work_sync(&priv->restart_work);
 	can_flush_echo_skb(dev);
 }
 EXPORT_SYMBOL_GPL(close_candev);
@@ -782,6 +795,38 @@ static const struct nla_policy can_polic
 				= { .len = sizeof(struct can_bittiming_const) },
 };
 
+static int can_validate(struct nlattr *tb[], struct nlattr *data[])
+{
+	bool is_can_fd = false;
+
+	/* Make sure that valid CAN FD configurations always consist of
+	 * - nominal/arbitration bittiming
+	 * - data bittiming
+	 * - control mode with CAN_CTRLMODE_FD set
+	 */
+
+	if (!data)
+		return 0;
+
+	if (data[IFLA_CAN_CTRLMODE]) {
+		struct can_ctrlmode *cm = nla_data(data[IFLA_CAN_CTRLMODE]);
+
+		is_can_fd = cm->flags & cm->mask & CAN_CTRLMODE_FD;
+	}
+
+	if (is_can_fd) {
+		if (!data[IFLA_CAN_BITTIMING] || !data[IFLA_CAN_DATA_BITTIMING])
+			return -EOPNOTSUPP;
+	}
+
+	if (data[IFLA_CAN_DATA_BITTIMING]) {
+		if (!is_can_fd || !data[IFLA_CAN_BITTIMING])
+			return -EOPNOTSUPP;
+	}
+
+	return 0;
+}
+
 static int can_changelink(struct net_device *dev,
 			  struct nlattr *tb[], struct nlattr *data[])
 {
@@ -813,19 +858,31 @@ static int can_changelink(struct net_dev
 
 	if (data[IFLA_CAN_CTRLMODE]) {
 		struct can_ctrlmode *cm;
+		u32 ctrlstatic;
+		u32 maskedflags;
 
 		/* Do not allow changing controller mode while running */
 		if (dev->flags & IFF_UP)
 			return -EBUSY;
 		cm = nla_data(data[IFLA_CAN_CTRLMODE]);
+		ctrlstatic = priv->ctrlmode_static;
+		maskedflags = cm->flags & cm->mask;
 
-		/* check whether changed bits are allowed to be modified */
-		if (cm->mask & ~priv->ctrlmode_supported)
+		/* check whether provided bits are allowed to be passed */
+		if (cm->mask & ~(priv->ctrlmode_supported | ctrlstatic))
+			return -EOPNOTSUPP;
+
+		/* do not check for static fd-non-iso if 'fd' is disabled */
+		if (!(maskedflags & CAN_CTRLMODE_FD))
+			ctrlstatic &= ~CAN_CTRLMODE_FD_NON_ISO;
+
+		/* make sure static options are provided by configuration */
+		if ((maskedflags & ctrlstatic) != ctrlstatic)
 			return -EOPNOTSUPP;
 
 		/* clear bits to be modified and copy the flag values */
 		priv->ctrlmode &= ~cm->mask;
-		priv->ctrlmode |= (cm->flags & cm->mask);
+		priv->ctrlmode |= maskedflags;
 
 		/* CAN_CTRLMODE_FD can only be set when driver supports FD */
 		if (priv->ctrlmode & CAN_CTRLMODE_FD)
@@ -961,13 +1018,20 @@ static int can_newlink(struct net *src_n
 	return -EOPNOTSUPP;
 }
 
+static void can_dellink(struct net_device *dev, struct list_head *head)
+{
+	return;
+}
+
 static struct rtnl_link_ops can_link_ops __read_mostly = {
 	.kind		= "can",
 	.maxtype	= IFLA_CAN_MAX,
 	.policy		= can_policy,
 	.setup		= can_setup,
+	.validate	= can_validate,
 	.newlink	= can_newlink,
 	.changelink	= can_changelink,
+	.dellink	= can_dellink,
 	.get_size	= can_get_size,
 	.fill_info	= can_fill_info,
 	.get_xstats_size = can_get_xstats_size,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/can/flexcan.c linux-libre-4.4.107-gnu/drivers/net/can/flexcan.c
--- linux-libre-4.4-gnu/drivers/net/can/flexcan.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/can/flexcan.c	2017-12-20 04:05:01.000000000 -0500
@@ -1268,11 +1268,10 @@ static int __maybe_unused flexcan_suspen
 	struct flexcan_priv *priv = netdev_priv(dev);
 	int err;
 
-	err = flexcan_chip_disable(priv);
-	if (err)
-		return err;
-
 	if (netif_running(dev)) {
+		err = flexcan_chip_disable(priv);
+		if (err)
+			return err;
 		netif_stop_queue(dev);
 		netif_device_detach(dev);
 	}
@@ -1285,13 +1284,17 @@ static int __maybe_unused flexcan_resume
 {
 	struct net_device *dev = dev_get_drvdata(device);
 	struct flexcan_priv *priv = netdev_priv(dev);
+	int err;
 
 	priv->can.state = CAN_STATE_ERROR_ACTIVE;
 	if (netif_running(dev)) {
 		netif_device_attach(dev);
 		netif_start_queue(dev);
+		err = flexcan_chip_enable(priv);
+		if (err)
+			return err;
 	}
-	return flexcan_chip_enable(priv);
+	return 0;
 }
 
 static SIMPLE_DEV_PM_OPS(flexcan_pm_ops, flexcan_suspend, flexcan_resume);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/can/m_can/m_can.c linux-libre-4.4.107-gnu/drivers/net/can/m_can/m_can.c
--- linux-libre-4.4-gnu/drivers/net/can/m_can/m_can.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/can/m_can/m_can.c	2017-12-20 04:05:01.000000000 -0500
@@ -955,7 +955,7 @@ static struct net_device *alloc_m_can_de
 	priv->can.do_get_berr_counter = m_can_get_berr_counter;
 
 	/* CAN_CTRLMODE_FD_NON_ISO is fixed with M_CAN IP v3.0.1 */
-	priv->can.ctrlmode = CAN_CTRLMODE_FD_NON_ISO;
+	can_set_static_ctrlmode(dev, CAN_CTRLMODE_FD_NON_ISO);
 
 	/* CAN_CTRLMODE_FD_NON_ISO can not be changed with M_CAN IP v3.0.1 */
 	priv->can.ctrlmode_supported = CAN_CTRLMODE_LOOPBACK |
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/can/sun4i_can.c linux-libre-4.4.107-gnu/drivers/net/can/sun4i_can.c
--- linux-libre-4.4-gnu/drivers/net/can/sun4i_can.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/can/sun4i_can.c	2017-12-20 04:05:01.000000000 -0500
@@ -342,7 +342,7 @@ static int sun4i_can_start(struct net_de
 
 	/* enter the selected mode */
 	mod_reg_val = readl(priv->base + SUN4I_REG_MSEL_ADDR);
-	if (priv->can.ctrlmode & CAN_CTRLMODE_PRESUME_ACK)
+	if (priv->can.ctrlmode & CAN_CTRLMODE_LOOPBACK)
 		mod_reg_val |= SUN4I_MSEL_LOOPBACK_MODE;
 	else if (priv->can.ctrlmode & CAN_CTRLMODE_LISTENONLY)
 		mod_reg_val |= SUN4I_MSEL_LISTEN_ONLY_MODE;
@@ -539,6 +539,13 @@ static int sun4i_can_err(struct net_devi
 		}
 		stats->rx_over_errors++;
 		stats->rx_errors++;
+
+		/* reset the CAN IP by entering reset mode
+		 * ignoring timeout error
+		 */
+		set_reset_mode(dev);
+		set_normal_mode(dev);
+
 		/* clear bit */
 		sun4i_can_write_cmdreg(priv, SUN4I_CMD_CLEAR_OR_FLAG);
 	}
@@ -653,8 +660,9 @@ static irqreturn_t sun4i_can_interrupt(i
 			netif_wake_queue(dev);
 			can_led_event(dev, CAN_LED_EVENT_TX);
 		}
-		if (isrc & SUN4I_INT_RBUF_VLD) {
-			/* receive interrupt */
+		if ((isrc & SUN4I_INT_RBUF_VLD) &&
+		    !(isrc & SUN4I_INT_DATA_OR)) {
+			/* receive interrupt - don't read if overrun occurred */
 			while (status & SUN4I_STA_RBUF_RDY) {
 				/* RX buffer is not empty */
 				sun4i_can_rx(dev);
@@ -811,7 +819,6 @@ static int sun4ican_probe(struct platfor
 	priv->can.ctrlmode_supported = CAN_CTRLMODE_BERR_REPORTING |
 				       CAN_CTRLMODE_LISTENONLY |
 				       CAN_CTRLMODE_LOOPBACK |
-				       CAN_CTRLMODE_PRESUME_ACK |
 				       CAN_CTRLMODE_3_SAMPLES;
 	priv->base = addr;
 	priv->clk = clk;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/can/ti_hecc.c linux-libre-4.4.107-gnu/drivers/net/can/ti_hecc.c
--- linux-libre-4.4-gnu/drivers/net/can/ti_hecc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/can/ti_hecc.c	2017-12-20 04:05:01.000000000 -0500
@@ -652,6 +652,9 @@ static int ti_hecc_rx_poll(struct napi_s
 		mbx_mask = hecc_read(priv, HECC_CANMIM);
 		mbx_mask |= HECC_TX_MBOX_MASK;
 		hecc_write(priv, HECC_CANMIM, mbx_mask);
+	} else {
+		/* repoll is done only if whole budget is used */
+		num_pkts = quota;
 	}
 
 	return num_pkts;
@@ -948,7 +951,12 @@ static int ti_hecc_probe(struct platform
 	netif_napi_add(ndev, &priv->napi, ti_hecc_rx_poll,
 		HECC_DEF_NAPI_WEIGHT);
 
-	clk_enable(priv->clk);
+	err = clk_prepare_enable(priv->clk);
+	if (err) {
+		dev_err(&pdev->dev, "clk_prepare_enable() failed\n");
+		goto probe_exit_clk;
+	}
+
 	err = register_candev(ndev);
 	if (err) {
 		dev_err(&pdev->dev, "register_candev() failed\n");
@@ -981,7 +989,7 @@ static int ti_hecc_remove(struct platfor
 	struct ti_hecc_priv *priv = netdev_priv(ndev);
 
 	unregister_candev(ndev);
-	clk_disable(priv->clk);
+	clk_disable_unprepare(priv->clk);
 	clk_put(priv->clk);
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	iounmap(priv->base);
@@ -1006,7 +1014,7 @@ static int ti_hecc_suspend(struct platfo
 	hecc_set_bit(priv, HECC_CANMC, HECC_CANMC_PDR);
 	priv->can.state = CAN_STATE_SLEEPING;
 
-	clk_disable(priv->clk);
+	clk_disable_unprepare(priv->clk);
 
 	return 0;
 }
@@ -1015,8 +1023,11 @@ static int ti_hecc_resume(struct platfor
 {
 	struct net_device *dev = platform_get_drvdata(pdev);
 	struct ti_hecc_priv *priv = netdev_priv(dev);
+	int err;
 
-	clk_enable(priv->clk);
+	err = clk_prepare_enable(priv->clk);
+	if (err)
+		return err;
 
 	hecc_clear_bit(priv, HECC_CANMC, HECC_CANMC_PDR);
 	priv->can.state = CAN_STATE_ERROR_ACTIVE;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/can/usb/ems_usb.c linux-libre-4.4.107-gnu/drivers/net/can/usb/ems_usb.c
--- linux-libre-4.4-gnu/drivers/net/can/usb/ems_usb.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/can/usb/ems_usb.c	2017-12-20 04:05:01.000000000 -0500
@@ -117,6 +117,9 @@ MODULE_LICENSE("GPL v2");
  */
 #define EMS_USB_ARM7_CLOCK 8000000
 
+#define CPC_TX_QUEUE_TRIGGER_LOW	25
+#define CPC_TX_QUEUE_TRIGGER_HIGH	35
+
 /*
  * CAN-Message representation in a CPC_MSG. Message object type is
  * CPC_MSG_TYPE_CAN_FRAME or CPC_MSG_TYPE_RTR_FRAME or
@@ -278,10 +281,17 @@ static void ems_usb_read_interrupt_callb
 	switch (urb->status) {
 	case 0:
 		dev->free_slots = dev->intr_in_buffer[1];
+		if(dev->free_slots > CPC_TX_QUEUE_TRIGGER_HIGH){
+			if (netif_queue_stopped(netdev)){
+				netif_wake_queue(netdev);
+			}
+		}
 		break;
 
 	case -ECONNRESET: /* unlink */
 	case -ENOENT:
+	case -EPIPE:
+	case -EPROTO:
 	case -ESHUTDOWN:
 		return;
 
@@ -526,8 +536,6 @@ static void ems_usb_write_bulk_callback(
 	/* Release context */
 	context->echo_index = MAX_TX_URBS;
 
-	if (netif_queue_stopped(netdev))
-		netif_wake_queue(netdev);
 }
 
 /*
@@ -587,7 +595,7 @@ static int ems_usb_start(struct ems_usb
 	int err, i;
 
 	dev->intr_in_buffer[0] = 0;
-	dev->free_slots = 15; /* initial size */
+	dev->free_slots = 50; /* initial size */
 
 	for (i = 0; i < MAX_RX_URBS; i++) {
 		struct urb *urb = NULL;
@@ -835,7 +843,7 @@ static netdev_tx_t ems_usb_start_xmit(st
 
 		/* Slow down tx path */
 		if (atomic_read(&dev->active_tx_urbs) >= MAX_TX_URBS ||
-		    dev->free_slots < 5) {
+		    dev->free_slots < CPC_TX_QUEUE_TRIGGER_LOW) {
 			netif_stop_queue(netdev);
 		}
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/can/usb/esd_usb2.c linux-libre-4.4.107-gnu/drivers/net/can/usb/esd_usb2.c
--- linux-libre-4.4-gnu/drivers/net/can/usb/esd_usb2.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/can/usb/esd_usb2.c	2017-12-20 04:05:01.000000000 -0500
@@ -333,7 +333,7 @@ static void esd_usb2_rx_can_msg(struct e
 		}
 
 		cf->can_id = id & ESD_IDMASK;
-		cf->can_dlc = get_can_dlc(msg->msg.rx.dlc);
+		cf->can_dlc = get_can_dlc(msg->msg.rx.dlc & ~ESD_RTR);
 
 		if (id & ESD_EXTID)
 			cf->can_id |= CAN_EFF_FLAG;
@@ -393,6 +393,8 @@ static void esd_usb2_read_bulk_callback(
 		break;
 
 	case -ENOENT:
+	case -EPIPE:
+	case -EPROTO:
 	case -ESHUTDOWN:
 		return;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/can/usb/gs_usb.c linux-libre-4.4.107-gnu/drivers/net/can/usb/gs_usb.c
--- linux-libre-4.4-gnu/drivers/net/can/usb/gs_usb.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/can/usb/gs_usb.c	2017-12-20 04:05:01.000000000 -0500
@@ -246,6 +246,8 @@ static int gs_cmd_reset(struct gs_usb *g
 			     sizeof(*dm),
 			     1000);
 
+	kfree(dm);
+
 	return rc;
 }
 
@@ -354,6 +356,8 @@ static void gs_usb_receive_bulk_callback
 
 		gs_free_tx_context(txc);
 
+		atomic_dec(&dev->active_tx_urbs);
+
 		netif_wake_queue(netdev);
 	}
 
@@ -442,14 +446,6 @@ static void gs_usb_xmit_callback(struct
 			  urb->transfer_buffer_length,
 			  urb->transfer_buffer,
 			  urb->transfer_dma);
-
-	atomic_dec(&dev->active_tx_urbs);
-
-	if (!netif_device_present(netdev))
-		return;
-
-	if (netif_queue_stopped(netdev))
-		netif_wake_queue(netdev);
 }
 
 static netdev_tx_t gs_can_start_xmit(struct sk_buff *skb, struct net_device *netdev)
@@ -826,9 +822,8 @@ static struct gs_can *gs_make_candev(uns
 static void gs_destroy_candev(struct gs_can *dev)
 {
 	unregister_candev(dev->netdev);
-	free_candev(dev->netdev);
 	usb_kill_anchored_urbs(&dev->tx_submitted);
-	kfree(dev);
+	free_candev(dev->netdev);
 }
 
 static int gs_usb_probe(struct usb_interface *intf, const struct usb_device_id *id)
@@ -913,12 +908,15 @@ static int gs_usb_probe(struct usb_inter
 	for (i = 0; i < icount; i++) {
 		dev->canch[i] = gs_make_candev(i, intf);
 		if (IS_ERR_OR_NULL(dev->canch[i])) {
+			/* save error code to return later */
+			rc = PTR_ERR(dev->canch[i]);
+
 			/* on failure destroy previously created candevs */
 			icount = i;
-			for (i = 0; i < icount; i++) {
+			for (i = 0; i < icount; i++)
 				gs_destroy_candev(dev->canch[i]);
-				dev->canch[i] = NULL;
-			}
+
+			usb_kill_anchored_urbs(&dev->rx_submitted);
 			kfree(dev);
 			return rc;
 		}
@@ -939,16 +937,12 @@ static void gs_usb_disconnect(struct usb
 		return;
 	}
 
-	for (i = 0; i < GS_MAX_INTF; i++) {
-		struct gs_can *can = dev->canch[i];
-
-		if (!can)
-			continue;
-
-		gs_destroy_candev(can);
-	}
+	for (i = 0; i < GS_MAX_INTF; i++)
+		if (dev->canch[i])
+			gs_destroy_candev(dev->canch[i]);
 
 	usb_kill_anchored_urbs(&dev->rx_submitted);
+	kfree(dev);
 }
 
 static const struct usb_device_id gs_usb_table[] = {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/can/usb/kvaser_usb.c linux-libre-4.4.107-gnu/drivers/net/can/usb/kvaser_usb.c
--- linux-libre-4.4-gnu/drivers/net/can/usb/kvaser_usb.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/can/usb/kvaser_usb.c	2017-12-20 04:05:01.000000000 -0500
@@ -134,6 +134,7 @@ static inline bool kvaser_is_usbcan(cons
 #define CMD_RESET_ERROR_COUNTER		49
 #define CMD_TX_ACKNOWLEDGE		50
 #define CMD_CAN_ERROR_EVENT		51
+#define CMD_FLUSH_QUEUE_REPLY		68
 
 #define CMD_LEAF_USB_THROTTLE		77
 #define CMD_LEAF_LOG_MESSAGE		106
@@ -602,8 +603,8 @@ static int kvaser_usb_wait_msg(const str
 			}
 
 			if (pos + tmp->len > actual_len) {
-				dev_err(dev->udev->dev.parent,
-					"Format error\n");
+				dev_err_ratelimited(dev->udev->dev.parent,
+						    "Format error\n");
 				break;
 			}
 
@@ -808,6 +809,7 @@ static int kvaser_usb_simple_msg_async(s
 	if (err) {
 		netdev_err(netdev, "Error transmitting URB\n");
 		usb_unanchor_urb(urb);
+		kfree(buf);
 		usb_free_urb(urb);
 		return err;
 	}
@@ -1297,6 +1299,11 @@ static void kvaser_usb_handle_message(co
 			goto warn;
 		break;
 
+	case CMD_FLUSH_QUEUE_REPLY:
+		if (dev->family != KVASER_LEAF)
+			goto warn;
+		break;
+
 	default:
 warn:		dev_warn(dev->udev->dev.parent,
 			 "Unhandled message (%d)\n", msg->id);
@@ -1315,6 +1322,8 @@ static void kvaser_usb_read_bulk_callbac
 	case 0:
 		break;
 	case -ENOENT:
+	case -EPIPE:
+	case -EPROTO:
 	case -ESHUTDOWN:
 		return;
 	default:
@@ -1323,7 +1332,7 @@ static void kvaser_usb_read_bulk_callbac
 		goto resubmit_urb;
 	}
 
-	while (pos <= urb->actual_length - MSG_HEADER_LEN) {
+	while (pos <= (int)(urb->actual_length - MSG_HEADER_LEN)) {
 		msg = urb->transfer_buffer + pos;
 
 		/* The Kvaser firmware can only read and write messages that
@@ -1342,7 +1351,8 @@ static void kvaser_usb_read_bulk_callbac
 		}
 
 		if (pos + msg->len > urb->actual_length) {
-			dev_err(dev->udev->dev.parent, "Format error\n");
+			dev_err_ratelimited(dev->udev->dev.parent,
+					    "Format error\n");
 			break;
 		}
 
@@ -1607,7 +1617,8 @@ static int kvaser_usb_close(struct net_d
 	if (err)
 		netdev_warn(netdev, "Cannot flush queue, error %d\n", err);
 
-	if (kvaser_usb_send_simple_msg(dev, CMD_RESET_CHIP, priv->channel))
+	err = kvaser_usb_send_simple_msg(dev, CMD_RESET_CHIP, priv->channel);
+	if (err)
 		netdev_warn(netdev, "Cannot reset card, error %d\n", err);
 
 	err = kvaser_usb_stop_chip(priv);
@@ -1760,6 +1771,7 @@ static netdev_tx_t kvaser_usb_start_xmit
 		spin_unlock_irqrestore(&priv->tx_contexts_lock, flags);
 
 		usb_unanchor_urb(urb);
+		kfree(buf);
 
 		stats->tx_dropped++;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/can/usb/peak_usb/pcan_usb_core.c linux-libre-4.4.107-gnu/drivers/net/can/usb/peak_usb/pcan_usb_core.c
--- linux-libre-4.4-gnu/drivers/net/can/usb/peak_usb/pcan_usb_core.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/can/usb/peak_usb/pcan_usb_core.c	2017-12-20 04:05:01.000000000 -0500
@@ -872,23 +872,25 @@ lbl_free_candev:
 static void peak_usb_disconnect(struct usb_interface *intf)
 {
 	struct peak_usb_device *dev;
+	struct peak_usb_device *dev_prev_siblings;
 
 	/* unregister as many netdev devices as siblings */
-	for (dev = usb_get_intfdata(intf); dev; dev = dev->prev_siblings) {
+	for (dev = usb_get_intfdata(intf); dev; dev = dev_prev_siblings) {
 		struct net_device *netdev = dev->netdev;
 		char name[IFNAMSIZ];
 
+		dev_prev_siblings = dev->prev_siblings;
 		dev->state &= ~PCAN_USB_STATE_CONNECTED;
 		strncpy(name, netdev->name, IFNAMSIZ);
 
 		unregister_netdev(netdev);
-		free_candev(netdev);
 
 		kfree(dev->cmd_buf);
 		dev->next_siblings = NULL;
 		if (dev->adapter->dev_free)
 			dev->adapter->dev_free(dev);
 
+		free_candev(netdev);
 		dev_info(&intf->dev, "%s removed\n", name);
 	}
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/can/usb/usb_8dev.c linux-libre-4.4.107-gnu/drivers/net/can/usb/usb_8dev.c
--- linux-libre-4.4-gnu/drivers/net/can/usb/usb_8dev.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/can/usb/usb_8dev.c	2017-12-20 04:05:01.000000000 -0500
@@ -524,6 +524,8 @@ static void usb_8dev_read_bulk_callback(
 		break;
 
 	case -ENOENT:
+	case -EPIPE:
+	case -EPROTO:
 	case -ESHUTDOWN:
 		return;
 
@@ -954,8 +956,8 @@ static int usb_8dev_probe(struct usb_int
 	for (i = 0; i < MAX_TX_URBS; i++)
 		priv->tx_contexts[i].echo_index = MAX_TX_URBS;
 
-	priv->cmd_msg_buffer = kzalloc(sizeof(struct usb_8dev_cmd_msg),
-				      GFP_KERNEL);
+	priv->cmd_msg_buffer = devm_kzalloc(&intf->dev, sizeof(struct usb_8dev_cmd_msg),
+					    GFP_KERNEL);
 	if (!priv->cmd_msg_buffer)
 		goto cleanup_candev;
 
@@ -969,7 +971,7 @@ static int usb_8dev_probe(struct usb_int
 	if (err) {
 		netdev_err(netdev,
 			"couldn't register CAN device: %d\n", err);
-		goto cleanup_cmd_msg_buffer;
+		goto cleanup_candev;
 	}
 
 	err = usb_8dev_cmd_version(priv, &version);
@@ -990,9 +992,6 @@ static int usb_8dev_probe(struct usb_int
 cleanup_unregister_candev:
 	unregister_netdev(priv->netdev);
 
-cleanup_cmd_msg_buffer:
-	kfree(priv->cmd_msg_buffer);
-
 cleanup_candev:
 	free_candev(netdev);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/dsa/bcm_sf2.c linux-libre-4.4.107-gnu/drivers/net/dsa/bcm_sf2.c
--- linux-libre-4.4-gnu/drivers/net/dsa/bcm_sf2.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/dsa/bcm_sf2.c	2017-12-20 04:05:01.000000000 -0500
@@ -1137,6 +1137,7 @@ static void bcm_sf2_sw_adjust_link(struc
 				   struct phy_device *phydev)
 {
 	struct bcm_sf2_priv *priv = ds_to_priv(ds);
+	struct ethtool_eee *p = &priv->port_sts[port].eee;
 	u32 id_mode_dis = 0, port_mode;
 	const char *str = NULL;
 	u32 reg;
@@ -1211,6 +1212,9 @@ force_link:
 		reg |= DUPLX_MODE;
 
 	core_writel(priv, reg, CORE_STS_OVERRIDE_GMIIP_PORT(port));
+
+	if (!phydev->is_pseudo_fixed_link)
+		p->eee_enabled = bcm_sf2_eee_init(ds, port, phydev);
 }
 
 static void bcm_sf2_sw_fixed_link_update(struct dsa_switch *ds, int port,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/dsa/bcm_sf2.h linux-libre-4.4.107-gnu/drivers/net/dsa/bcm_sf2.h
--- linux-libre-4.4-gnu/drivers/net/dsa/bcm_sf2.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/dsa/bcm_sf2.h	2017-12-20 04:05:01.000000000 -0500
@@ -187,8 +187,8 @@ static inline void name##_writeq(struct
 static inline void intrl2_##which##_mask_clear(struct bcm_sf2_priv *priv, \
 						u32 mask)		\
 {									\
-	intrl2_##which##_writel(priv, mask, INTRL2_CPU_MASK_CLEAR);	\
 	priv->irq##which##_mask &= ~(mask);				\
+	intrl2_##which##_writel(priv, mask, INTRL2_CPU_MASK_CLEAR);	\
 }									\
 static inline void intrl2_##which##_mask_set(struct bcm_sf2_priv *priv, \
 						u32 mask)		\
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/dsa/mv88e6xxx.c linux-libre-4.4.107-gnu/drivers/net/dsa/mv88e6xxx.c
--- linux-libre-4.4-gnu/drivers/net/dsa/mv88e6xxx.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/dsa/mv88e6xxx.c	2017-12-20 04:05:01.000000000 -0500
@@ -1519,7 +1519,7 @@ int mv88e6xxx_port_vlan_add(struct dsa_s
 
 	/* no PVID with ranges, otherwise it's a bug */
 	if (pvid)
-		err = _mv88e6xxx_port_pvid_set(ds, port, vid);
+		err = _mv88e6xxx_port_pvid_set(ds, port, vlan->vid_end);
 unlock:
 	mutex_unlock(&ps->smi_mutex);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/3com/typhoon.c linux-libre-4.4.107-gnu/drivers/net/ethernet/3com/typhoon.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/3com/typhoon.c	2016-01-10 21:05:45.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/3com/typhoon.c	2017-12-20 11:27:43.000000000 -0500
@@ -2366,9 +2366,9 @@ typhoon_init_one(struct pci_dev *pdev, c
 	 * 4) Get the hardware address.
 	 * 5) Put the card to sleep.
 	 */
-	if (typhoon_reset(ioaddr, WaitSleep) < 0) {
+	err = typhoon_reset(ioaddr, WaitSleep);
+	if (err < 0) {
 		err_msg = "could not reset 3XP";
-		err = -EIO;
 		goto error_out_dma;
 	}
 
@@ -2382,24 +2382,25 @@ typhoon_init_one(struct pci_dev *pdev, c
 	typhoon_init_interface(tp);
 	typhoon_init_rings(tp);
 
-	if(typhoon_boot_3XP(tp, TYPHOON_STATUS_WAITING_FOR_HOST) < 0) {
+	err = typhoon_boot_3XP(tp, TYPHOON_STATUS_WAITING_FOR_HOST);
+	if (err < 0) {
 		err_msg = "cannot boot 3XP sleep image";
-		err = -EIO;
 		goto error_out_reset;
 	}
 
 	INIT_COMMAND_WITH_RESPONSE(&xp_cmd, TYPHOON_CMD_READ_MAC_ADDRESS);
-	if(typhoon_issue_command(tp, 1, &xp_cmd, 1, xp_resp) < 0) {
+	err = typhoon_issue_command(tp, 1, &xp_cmd, 1, xp_resp);
+	if (err < 0) {
 		err_msg = "cannot read MAC address";
-		err = -EIO;
 		goto error_out_reset;
 	}
 
 	*(__be16 *)&dev->dev_addr[0] = htons(le16_to_cpu(xp_resp[0].parm1));
 	*(__be32 *)&dev->dev_addr[2] = htonl(le32_to_cpu(xp_resp[0].parm2));
 
-	if(!is_valid_ether_addr(dev->dev_addr)) {
+	if (!is_valid_ether_addr(dev->dev_addr)) {
 		err_msg = "Could not obtain valid ethernet address, aborting";
+		err = -EIO;
 		goto error_out_reset;
 	}
 
@@ -2407,7 +2408,8 @@ typhoon_init_one(struct pci_dev *pdev, c
 	 * later when we print out the version reported.
 	 */
 	INIT_COMMAND_WITH_RESPONSE(&xp_cmd, TYPHOON_CMD_READ_VERSIONS);
-	if(typhoon_issue_command(tp, 1, &xp_cmd, 3, xp_resp) < 0) {
+	err = typhoon_issue_command(tp, 1, &xp_cmd, 3, xp_resp);
+	if (err < 0) {
 		err_msg = "Could not get Sleep Image version";
 		goto error_out_reset;
 	}
@@ -2424,9 +2426,9 @@ typhoon_init_one(struct pci_dev *pdev, c
 	if(xp_resp[0].numDesc != 0)
 		tp->capabilities |= TYPHOON_WAKEUP_NEEDS_RESET;
 
-	if(typhoon_sleep(tp, PCI_D3hot, 0) < 0) {
+	err = typhoon_sleep(tp, PCI_D3hot, 0);
+	if (err < 0) {
 		err_msg = "cannot put adapter to sleep";
-		err = -EIO;
 		goto error_out_reset;
 	}
 
@@ -2449,7 +2451,8 @@ typhoon_init_one(struct pci_dev *pdev, c
 	dev->features = dev->hw_features |
 		NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_RXCSUM;
 
-	if(register_netdev(dev) < 0) {
+	err = register_netdev(dev);
+	if (err < 0) {
 		err_msg = "unable to register netdev";
 		goto error_out_reset;
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/adaptec/starfire.c linux-libre-4.4.107-gnu/drivers/net/ethernet/adaptec/starfire.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/adaptec/starfire.c	2016-01-10 21:03:49.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/adaptec/starfire.c	2017-12-20 11:23:57.000000000 -0500
@@ -1152,6 +1152,12 @@ static void init_ring(struct net_device
 		if (skb == NULL)
 			break;
 		np->rx_info[i].mapping = pci_map_single(np->pci_dev, skb->data, np->rx_buf_sz, PCI_DMA_FROMDEVICE);
+		if (pci_dma_mapping_error(np->pci_dev,
+					  np->rx_info[i].mapping)) {
+			dev_kfree_skb(skb);
+			np->rx_info[i].skb = NULL;
+			break;
+		}
 		/* Grrr, we cannot offset to correctly align the IP header. */
 		np->rx_ring[i].rxaddr = cpu_to_dma(np->rx_info[i].mapping | RxDescValid);
 	}
@@ -1182,8 +1188,9 @@ static netdev_tx_t start_tx(struct sk_bu
 {
 	struct netdev_private *np = netdev_priv(dev);
 	unsigned int entry;
+	unsigned int prev_tx;
 	u32 status;
-	int i;
+	int i, j;
 
 	/*
 	 * be cautious here, wrapping the queue has weird semantics
@@ -1201,6 +1208,7 @@ static netdev_tx_t start_tx(struct sk_bu
 	}
 #endif /* ZEROCOPY && HAS_BROKEN_FIRMWARE */
 
+	prev_tx = np->cur_tx;
 	entry = np->cur_tx % TX_RING_SIZE;
 	for (i = 0; i < skb_num_frags(skb); i++) {
 		int wrap_ring = 0;
@@ -1234,6 +1242,11 @@ static netdev_tx_t start_tx(struct sk_bu
 					       skb_frag_size(this_frag),
 					       PCI_DMA_TODEVICE);
 		}
+		if (pci_dma_mapping_error(np->pci_dev,
+					  np->tx_info[entry].mapping)) {
+			dev->stats.tx_dropped++;
+			goto err_out;
+		}
 
 		np->tx_ring[entry].addr = cpu_to_dma(np->tx_info[entry].mapping);
 		np->tx_ring[entry].status = cpu_to_le32(status);
@@ -1268,8 +1281,30 @@ static netdev_tx_t start_tx(struct sk_bu
 		netif_stop_queue(dev);
 
 	return NETDEV_TX_OK;
-}
 
+err_out:
+	entry = prev_tx % TX_RING_SIZE;
+	np->tx_info[entry].skb = NULL;
+	if (i > 0) {
+		pci_unmap_single(np->pci_dev,
+				 np->tx_info[entry].mapping,
+				 skb_first_frag_len(skb),
+				 PCI_DMA_TODEVICE);
+		np->tx_info[entry].mapping = 0;
+		entry = (entry + np->tx_info[entry].used_slots) % TX_RING_SIZE;
+		for (j = 1; j < i; j++) {
+			pci_unmap_single(np->pci_dev,
+					 np->tx_info[entry].mapping,
+					 skb_frag_size(
+						&skb_shinfo(skb)->frags[j-1]),
+					 PCI_DMA_TODEVICE);
+			entry++;
+		}
+	}
+	dev_kfree_skb_any(skb);
+	np->cur_tx = prev_tx;
+	return NETDEV_TX_OK;
+}
 
 /* The interrupt handler does all of the Rx thread work and cleans up
    after the Tx thread. */
@@ -1569,6 +1604,12 @@ static void refill_rx_ring(struct net_de
 				break;	/* Better luck next round. */
 			np->rx_info[entry].mapping =
 				pci_map_single(np->pci_dev, skb->data, np->rx_buf_sz, PCI_DMA_FROMDEVICE);
+			if (pci_dma_mapping_error(np->pci_dev,
+						np->rx_info[entry].mapping)) {
+				dev_kfree_skb(skb);
+				np->rx_info[entry].skb = NULL;
+				break;
+			}
 			np->rx_ring[entry].rxaddr =
 				cpu_to_dma(np->rx_info[entry].mapping | RxDescValid);
 		}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/amd/xgbe/xgbe-common.h linux-libre-4.4.107-gnu/drivers/net/ethernet/amd/xgbe/xgbe-common.h
--- linux-libre-4.4-gnu/drivers/net/ethernet/amd/xgbe/xgbe-common.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/amd/xgbe/xgbe-common.h	2017-12-20 04:05:01.000000000 -0500
@@ -913,8 +913,8 @@
 #define RX_PACKET_ATTRIBUTES_CSUM_DONE_WIDTH	1
 #define RX_PACKET_ATTRIBUTES_VLAN_CTAG_INDEX	1
 #define RX_PACKET_ATTRIBUTES_VLAN_CTAG_WIDTH	1
-#define RX_PACKET_ATTRIBUTES_INCOMPLETE_INDEX	2
-#define RX_PACKET_ATTRIBUTES_INCOMPLETE_WIDTH	1
+#define RX_PACKET_ATTRIBUTES_LAST_INDEX		2
+#define RX_PACKET_ATTRIBUTES_LAST_WIDTH		1
 #define RX_PACKET_ATTRIBUTES_CONTEXT_NEXT_INDEX	3
 #define RX_PACKET_ATTRIBUTES_CONTEXT_NEXT_WIDTH	1
 #define RX_PACKET_ATTRIBUTES_CONTEXT_INDEX	4
@@ -923,6 +923,8 @@
 #define RX_PACKET_ATTRIBUTES_RX_TSTAMP_WIDTH	1
 #define RX_PACKET_ATTRIBUTES_RSS_HASH_INDEX	6
 #define RX_PACKET_ATTRIBUTES_RSS_HASH_WIDTH	1
+#define RX_PACKET_ATTRIBUTES_FIRST_INDEX	7
+#define RX_PACKET_ATTRIBUTES_FIRST_WIDTH	1
 
 #define RX_NORMAL_DESC0_OVT_INDEX		0
 #define RX_NORMAL_DESC0_OVT_WIDTH		16
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/amd/xgbe/xgbe-dev.c linux-libre-4.4.107-gnu/drivers/net/ethernet/amd/xgbe/xgbe-dev.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/amd/xgbe/xgbe-dev.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/amd/xgbe/xgbe-dev.c	2017-12-20 04:05:01.000000000 -0500
@@ -1658,10 +1658,15 @@ static int xgbe_dev_read(struct xgbe_cha
 
 	/* Get the header length */
 	if (XGMAC_GET_BITS_LE(rdesc->desc3, RX_NORMAL_DESC3, FD)) {
+		XGMAC_SET_BITS(packet->attributes, RX_PACKET_ATTRIBUTES,
+			       FIRST, 1);
 		rdata->rx.hdr_len = XGMAC_GET_BITS_LE(rdesc->desc2,
 						      RX_NORMAL_DESC2, HL);
 		if (rdata->rx.hdr_len)
 			pdata->ext_stats.rx_split_header_packets++;
+	} else {
+		XGMAC_SET_BITS(packet->attributes, RX_PACKET_ATTRIBUTES,
+			       FIRST, 0);
 	}
 
 	/* Get the RSS hash */
@@ -1684,19 +1689,16 @@ static int xgbe_dev_read(struct xgbe_cha
 		}
 	}
 
-	/* Get the packet length */
-	rdata->rx.len = XGMAC_GET_BITS_LE(rdesc->desc3, RX_NORMAL_DESC3, PL);
-
-	if (!XGMAC_GET_BITS_LE(rdesc->desc3, RX_NORMAL_DESC3, LD)) {
-		/* Not all the data has been transferred for this packet */
-		XGMAC_SET_BITS(packet->attributes, RX_PACKET_ATTRIBUTES,
-			       INCOMPLETE, 1);
+	/* Not all the data has been transferred for this packet */
+	if (!XGMAC_GET_BITS_LE(rdesc->desc3, RX_NORMAL_DESC3, LD))
 		return 0;
-	}
 
 	/* This is the last of the data for this packet */
 	XGMAC_SET_BITS(packet->attributes, RX_PACKET_ATTRIBUTES,
-		       INCOMPLETE, 0);
+		       LAST, 1);
+
+	/* Get the packet length */
+	rdata->rx.len = XGMAC_GET_BITS_LE(rdesc->desc3, RX_NORMAL_DESC3, PL);
 
 	/* Set checksum done indicator as appropriate */
 	if (netdev->features & NETIF_F_RXCSUM)
@@ -2730,8 +2732,10 @@ static int xgbe_init(struct xgbe_prv_dat
 
 	/* Flush Tx queues */
 	ret = xgbe_flush_tx_queues(pdata);
-	if (ret)
+	if (ret) {
+		netdev_err(pdata->netdev, "error flushing TX queues\n");
 		return ret;
+	}
 
 	/*
 	 * Initialize DMA related features
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/amd/xgbe/xgbe-drv.c linux-libre-4.4.107-gnu/drivers/net/ethernet/amd/xgbe/xgbe-drv.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/amd/xgbe/xgbe-drv.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/amd/xgbe/xgbe-drv.c	2017-12-20 04:05:01.000000000 -0500
@@ -877,7 +877,9 @@ static int xgbe_start(struct xgbe_prv_da
 
 	DBGPR("-->xgbe_start\n");
 
-	hw_if->init(pdata);
+	ret = hw_if->init(pdata);
+	if (ret)
+		return ret;
 
 	ret = phy_if->phy_start(pdata);
 	if (ret)
@@ -1760,13 +1762,12 @@ static struct sk_buff *xgbe_create_skb(s
 {
 	struct sk_buff *skb;
 	u8 *packet;
-	unsigned int copy_len;
 
 	skb = napi_alloc_skb(napi, rdata->rx.hdr.dma_len);
 	if (!skb)
 		return NULL;
 
-	/* Start with the header buffer which may contain just the header
+	/* Pull in the header buffer which may contain just the header
 	 * or the header plus data
 	 */
 	dma_sync_single_range_for_cpu(pdata->dev, rdata->rx.hdr.dma_base,
@@ -1775,28 +1776,47 @@ static struct sk_buff *xgbe_create_skb(s
 
 	packet = page_address(rdata->rx.hdr.pa.pages) +
 		 rdata->rx.hdr.pa.pages_offset;
-	copy_len = (rdata->rx.hdr_len) ? rdata->rx.hdr_len : len;
-	copy_len = min(rdata->rx.hdr.dma_len, copy_len);
-	skb_copy_to_linear_data(skb, packet, copy_len);
-	skb_put(skb, copy_len);
+	skb_copy_to_linear_data(skb, packet, len);
+	skb_put(skb, len);
 
-	len -= copy_len;
-	if (len) {
-		/* Add the remaining data as a frag */
-		dma_sync_single_range_for_cpu(pdata->dev,
-					      rdata->rx.buf.dma_base,
-					      rdata->rx.buf.dma_off,
-					      rdata->rx.buf.dma_len,
-					      DMA_FROM_DEVICE);
+	return skb;
+}
 
-		skb_add_rx_frag(skb, skb_shinfo(skb)->nr_frags,
-				rdata->rx.buf.pa.pages,
-				rdata->rx.buf.pa.pages_offset,
-				len, rdata->rx.buf.dma_len);
-		rdata->rx.buf.pa.pages = NULL;
-	}
+static unsigned int xgbe_rx_buf1_len(struct xgbe_ring_data *rdata,
+				     struct xgbe_packet_data *packet)
+{
+	/* Always zero if not the first descriptor */
+	if (!XGMAC_GET_BITS(packet->attributes, RX_PACKET_ATTRIBUTES, FIRST))
+		return 0;
 
-	return skb;
+	/* First descriptor with split header, return header length */
+	if (rdata->rx.hdr_len)
+		return rdata->rx.hdr_len;
+
+	/* First descriptor but not the last descriptor and no split header,
+	 * so the full buffer was used
+	 */
+	if (!XGMAC_GET_BITS(packet->attributes, RX_PACKET_ATTRIBUTES, LAST))
+		return rdata->rx.hdr.dma_len;
+
+	/* First descriptor and last descriptor and no split header, so
+	 * calculate how much of the buffer was used
+	 */
+	return min_t(unsigned int, rdata->rx.hdr.dma_len, rdata->rx.len);
+}
+
+static unsigned int xgbe_rx_buf2_len(struct xgbe_ring_data *rdata,
+				     struct xgbe_packet_data *packet,
+				     unsigned int len)
+{
+	/* Always the full buffer if not the last descriptor */
+	if (!XGMAC_GET_BITS(packet->attributes, RX_PACKET_ATTRIBUTES, LAST))
+		return rdata->rx.buf.dma_len;
+
+	/* Last descriptor so calculate how much of the buffer was used
+	 * for the last bit of data
+	 */
+	return rdata->rx.len - len;
 }
 
 static int xgbe_tx_poll(struct xgbe_channel *channel)
@@ -1881,8 +1901,8 @@ static int xgbe_rx_poll(struct xgbe_chan
 	struct napi_struct *napi;
 	struct sk_buff *skb;
 	struct skb_shared_hwtstamps *hwtstamps;
-	unsigned int incomplete, error, context_next, context;
-	unsigned int len, rdesc_len, max_len;
+	unsigned int last, error, context_next, context;
+	unsigned int len, buf1_len, buf2_len, max_len;
 	unsigned int received = 0;
 	int packet_count = 0;
 
@@ -1892,7 +1912,7 @@ static int xgbe_rx_poll(struct xgbe_chan
 	if (!ring)
 		return 0;
 
-	incomplete = 0;
+	last = 0;
 	context_next = 0;
 
 	napi = (pdata->per_channel_irq) ? &channel->napi : &pdata->napi;
@@ -1926,9 +1946,8 @@ read_again:
 		received++;
 		ring->cur++;
 
-		incomplete = XGMAC_GET_BITS(packet->attributes,
-					    RX_PACKET_ATTRIBUTES,
-					    INCOMPLETE);
+		last = XGMAC_GET_BITS(packet->attributes, RX_PACKET_ATTRIBUTES,
+				      LAST);
 		context_next = XGMAC_GET_BITS(packet->attributes,
 					      RX_PACKET_ATTRIBUTES,
 					      CONTEXT_NEXT);
@@ -1937,7 +1956,7 @@ read_again:
 					 CONTEXT);
 
 		/* Earlier error, just drain the remaining data */
-		if ((incomplete || context_next) && error)
+		if ((!last || context_next) && error)
 			goto read_again;
 
 		if (error || packet->errors) {
@@ -1949,16 +1968,22 @@ read_again:
 		}
 
 		if (!context) {
-			/* Length is cumulative, get this descriptor's length */
-			rdesc_len = rdata->rx.len - len;
-			len += rdesc_len;
+			/* Get the data length in the descriptor buffers */
+			buf1_len = xgbe_rx_buf1_len(rdata, packet);
+			len += buf1_len;
+			buf2_len = xgbe_rx_buf2_len(rdata, packet, len);
+			len += buf2_len;
 
-			if (rdesc_len && !skb) {
+			if (!skb) {
 				skb = xgbe_create_skb(pdata, napi, rdata,
-						      rdesc_len);
-				if (!skb)
+						      buf1_len);
+				if (!skb) {
 					error = 1;
-			} else if (rdesc_len) {
+					goto skip_data;
+				}
+			}
+
+			if (buf2_len) {
 				dma_sync_single_range_for_cpu(pdata->dev,
 							rdata->rx.buf.dma_base,
 							rdata->rx.buf.dma_off,
@@ -1968,13 +1993,14 @@ read_again:
 				skb_add_rx_frag(skb, skb_shinfo(skb)->nr_frags,
 						rdata->rx.buf.pa.pages,
 						rdata->rx.buf.pa.pages_offset,
-						rdesc_len,
+						buf2_len,
 						rdata->rx.buf.dma_len);
 				rdata->rx.buf.pa.pages = NULL;
 			}
 		}
 
-		if (incomplete || context_next)
+skip_data:
+		if (!last || context_next)
 			goto read_again;
 
 		if (!skb)
@@ -2033,7 +2059,7 @@ next_packet:
 	}
 
 	/* Check if we need to save state before leaving */
-	if (received && (incomplete || context_next)) {
+	if (received && (!last || context_next)) {
 		rdata = XGBE_GET_DESC_DATA(ring, ring->cur);
 		rdata->state_saved = 1;
 		rdata->state.skb = skb;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/atheros/alx/main.c linux-libre-4.4.107-gnu/drivers/net/ethernet/atheros/alx/main.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/atheros/alx/main.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/atheros/alx/main.c	2017-12-20 04:05:01.000000000 -0500
@@ -86,9 +86,14 @@ static int alx_refill_rx_ring(struct alx
 	while (!cur_buf->skb && next != rxq->read_idx) {
 		struct alx_rfd *rfd = &rxq->rfd[cur];
 
-		skb = __netdev_alloc_skb(alx->dev, alx->rxbuf_size, gfp);
+		skb = __netdev_alloc_skb(alx->dev, alx->rxbuf_size + 64, gfp);
 		if (!skb)
 			break;
+
+		/* Workround for the HW RX DMA overflow issue */
+		if (((unsigned long)skb->data & 0xfff) == 0xfc0)
+			skb_reserve(skb, 64);
+
 		dma = dma_map_single(&alx->hw.pdev->dev,
 				     skb->data, alx->rxbuf_size,
 				     DMA_FROM_DEVICE);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/atheros/atlx/atl2.c linux-libre-4.4.107-gnu/drivers/net/ethernet/atheros/atlx/atl2.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/atheros/atlx/atl2.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/atheros/atlx/atl2.c	2017-12-20 04:05:01.000000000 -0500
@@ -1412,7 +1412,7 @@ static int atl2_probe(struct pci_dev *pd
 
 	err = -EIO;
 
-	netdev->hw_features = NETIF_F_SG | NETIF_F_HW_VLAN_CTAG_RX;
+	netdev->hw_features = NETIF_F_HW_VLAN_CTAG_RX;
 	netdev->features |= (NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX);
 
 	/* Init PHY as early as possible due to power saving issue  */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/aurora/nb8800.c linux-libre-4.4.107-gnu/drivers/net/ethernet/aurora/nb8800.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/aurora/nb8800.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/aurora/nb8800.c	2017-12-20 04:05:01.000000000 -0500
@@ -608,7 +608,7 @@ static void nb8800_mac_config(struct net
 		mac_mode |= HALF_DUPLEX;
 
 	if (gigabit) {
-		if (priv->phy_mode == PHY_INTERFACE_MODE_RGMII)
+		if (phy_interface_is_rgmii(dev->phydev))
 			mac_mode |= RGMII_MODE;
 
 		mac_mode |= GMAC_MODE;
@@ -1295,11 +1295,10 @@ static int nb8800_tangox_init(struct net
 		break;
 
 	case PHY_INTERFACE_MODE_RGMII:
-		pad_mode = PAD_MODE_RGMII;
-		break;
-
+	case PHY_INTERFACE_MODE_RGMII_ID:
+	case PHY_INTERFACE_MODE_RGMII_RXID:
 	case PHY_INTERFACE_MODE_RGMII_TXID:
-		pad_mode = PAD_MODE_RGMII | PAD_MODE_GTX_CLK_DELAY;
+		pad_mode = PAD_MODE_RGMII;
 		break;
 
 	default:
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/broadcom/bcmsysport.c linux-libre-4.4.107-gnu/drivers/net/ethernet/broadcom/bcmsysport.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/broadcom/bcmsysport.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/broadcom/bcmsysport.c	2017-12-20 04:05:01.000000000 -0500
@@ -732,11 +732,8 @@ static unsigned int __bcm_sysport_tx_rec
 	unsigned int c_index, last_c_index, last_tx_cn, num_tx_cbs;
 	unsigned int pkts_compl = 0, bytes_compl = 0;
 	struct bcm_sysport_cb *cb;
-	struct netdev_queue *txq;
 	u32 hw_ind;
 
-	txq = netdev_get_tx_queue(ndev, ring->index);
-
 	/* Compute how many descriptors have been processed since last call */
 	hw_ind = tdma_readl(priv, TDMA_DESC_RING_PROD_CONS_INDEX(ring->index));
 	c_index = (hw_ind >> RING_CONS_INDEX_SHIFT) & RING_CONS_INDEX_MASK;
@@ -767,9 +764,6 @@ static unsigned int __bcm_sysport_tx_rec
 
 	ring->c_index = c_index;
 
-	if (netif_tx_queue_stopped(txq) && pkts_compl)
-		netif_tx_wake_queue(txq);
-
 	netif_dbg(priv, tx_done, ndev,
 		  "ring=%d c_index=%d pkts_compl=%d, bytes_compl=%d\n",
 		  ring->index, ring->c_index, pkts_compl, bytes_compl);
@@ -781,16 +775,33 @@ static unsigned int __bcm_sysport_tx_rec
 static unsigned int bcm_sysport_tx_reclaim(struct bcm_sysport_priv *priv,
 					   struct bcm_sysport_tx_ring *ring)
 {
+	struct netdev_queue *txq;
 	unsigned int released;
 	unsigned long flags;
 
+	txq = netdev_get_tx_queue(priv->netdev, ring->index);
+
 	spin_lock_irqsave(&ring->lock, flags);
 	released = __bcm_sysport_tx_reclaim(priv, ring);
+	if (released)
+		netif_tx_wake_queue(txq);
+
 	spin_unlock_irqrestore(&ring->lock, flags);
 
 	return released;
 }
 
+/* Locked version of the per-ring TX reclaim, but does not wake the queue */
+static void bcm_sysport_tx_clean(struct bcm_sysport_priv *priv,
+				 struct bcm_sysport_tx_ring *ring)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&ring->lock, flags);
+	__bcm_sysport_tx_reclaim(priv, ring);
+	spin_unlock_irqrestore(&ring->lock, flags);
+}
+
 static int bcm_sysport_tx_poll(struct napi_struct *napi, int budget)
 {
 	struct bcm_sysport_tx_ring *ring =
@@ -1034,15 +1045,6 @@ static netdev_tx_t bcm_sysport_xmit(stru
 		goto out;
 	}
 
-	/* Insert TSB and checksum infos */
-	if (priv->tsb_en) {
-		skb = bcm_sysport_insert_tsb(skb, dev);
-		if (!skb) {
-			ret = NETDEV_TX_OK;
-			goto out;
-		}
-	}
-
 	/* The Ethernet switch we are interfaced with needs packets to be at
 	 * least 64 bytes (including FCS) otherwise they will be discarded when
 	 * they enter the switch port logic. When Broadcom tags are enabled, we
@@ -1050,13 +1052,21 @@ static netdev_tx_t bcm_sysport_xmit(stru
 	 * (including FCS and tag) because the length verification is done after
 	 * the Broadcom tag is stripped off the ingress packet.
 	 */
-	if (skb_padto(skb, ETH_ZLEN + ENET_BRCM_TAG_LEN)) {
+	if (skb_put_padto(skb, ETH_ZLEN + ENET_BRCM_TAG_LEN)) {
 		ret = NETDEV_TX_OK;
 		goto out;
 	}
 
-	skb_len = skb->len < ETH_ZLEN + ENET_BRCM_TAG_LEN ?
-			ETH_ZLEN + ENET_BRCM_TAG_LEN : skb->len;
+	/* Insert TSB and checksum infos */
+	if (priv->tsb_en) {
+		skb = bcm_sysport_insert_tsb(skb, dev);
+		if (!skb) {
+			ret = NETDEV_TX_OK;
+			goto out;
+		}
+	}
+
+	skb_len = skb->len;
 
 	mapping = dma_map_single(kdev, skb->data, skb_len, DMA_TO_DEVICE);
 	if (dma_mapping_error(kdev, mapping)) {
@@ -1275,7 +1285,7 @@ static void bcm_sysport_fini_tx_ring(str
 	napi_disable(&ring->napi);
 	netif_napi_del(&ring->napi);
 
-	bcm_sysport_tx_reclaim(priv, ring);
+	bcm_sysport_tx_clean(priv, ring);
 
 	kfree(ring->cbs);
 	ring->cbs = NULL;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/broadcom/bgmac.c linux-libre-4.4.107-gnu/drivers/net/ethernet/broadcom/bgmac.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/broadcom/bgmac.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/broadcom/bgmac.c	2017-12-20 04:05:01.000000000 -0500
@@ -219,7 +219,7 @@ err_dma:
 	dma_unmap_single(dma_dev, slot->dma_addr, skb_headlen(skb),
 			 DMA_TO_DEVICE);
 
-	while (i > 0) {
+	while (i-- > 0) {
 		int index = (ring->end + i) % BGMAC_TX_RING_SLOTS;
 		struct bgmac_slot_info *slot = &ring->slots[index];
 		u32 ctl1 = le32_to_cpu(ring->cpu_base[index].ctl1);
@@ -255,15 +255,16 @@ static void bgmac_dma_tx_free(struct bgm
 	while (ring->start != ring->end) {
 		int slot_idx = ring->start % BGMAC_TX_RING_SLOTS;
 		struct bgmac_slot_info *slot = &ring->slots[slot_idx];
-		u32 ctl1;
+		u32 ctl0, ctl1;
 		int len;
 
 		if (slot_idx == empty_slot)
 			break;
 
+		ctl0 = le32_to_cpu(ring->cpu_base[slot_idx].ctl0);
 		ctl1 = le32_to_cpu(ring->cpu_base[slot_idx].ctl1);
 		len = ctl1 & BGMAC_DESC_CTL1_LEN;
-		if (ctl1 & BGMAC_DESC_CTL0_SOF)
+		if (ctl0 & BGMAC_DESC_CTL0_SOF)
 			/* Unmap no longer used buffer */
 			dma_unmap_single(dma_dev, slot->dma_addr, len,
 					 DMA_TO_DEVICE);
@@ -314,6 +315,10 @@ static void bgmac_dma_rx_enable(struct b
 	u32 ctl;
 
 	ctl = bgmac_read(bgmac, ring->mmio_base + BGMAC_DMA_RX_CTL);
+
+	/* preserve ONLY bits 16-17 from current hardware value */
+	ctl &= BGMAC_DMA_RX_ADDREXT_MASK;
+
 	if (bgmac->core->id.rev >= 4) {
 		ctl &= ~BGMAC_DMA_RX_BL_MASK;
 		ctl |= BGMAC_DMA_RX_BL_128 << BGMAC_DMA_RX_BL_SHIFT;
@@ -324,7 +329,6 @@ static void bgmac_dma_rx_enable(struct b
 		ctl &= ~BGMAC_DMA_RX_PT_MASK;
 		ctl |= BGMAC_DMA_RX_PT_1 << BGMAC_DMA_RX_PT_SHIFT;
 	}
-	ctl &= BGMAC_DMA_RX_ADDREXT_MASK;
 	ctl |= BGMAC_DMA_RX_ENABLE;
 	ctl |= BGMAC_DMA_RX_PARITY_DISABLE;
 	ctl |= BGMAC_DMA_RX_OVERFLOW_CONT;
@@ -466,6 +470,11 @@ static int bgmac_dma_rx_read(struct bgma
 			len -= ETH_FCS_LEN;
 
 			skb = build_skb(buf, BGMAC_RX_ALLOC_SIZE);
+			if (unlikely(!skb)) {
+				bgmac_err(bgmac, "build_skb failed\n");
+				put_page(virt_to_head_page(buf));
+				break;
+			}
 			skb_put(skb, BGMAC_RX_FRAME_OFFSET +
 				BGMAC_RX_BUF_OFFSET + len);
 			skb_pull(skb, BGMAC_RX_FRAME_OFFSET +
@@ -1299,7 +1308,8 @@ static int bgmac_open(struct net_device
 
 	phy_start(bgmac->phy_dev);
 
-	netif_carrier_on(net_dev);
+	netif_start_queue(net_dev);
+
 	return 0;
 }
 
@@ -1573,6 +1583,11 @@ static int bgmac_probe(struct bcma_devic
 		dev_warn(&core->dev, "Using random MAC: %pM\n", mac);
 	}
 
+	/* This (reset &) enable is not preset in specs or reference driver but
+	 * Broadcom does it in arch PCI code when enabling fake PCI device.
+	 */
+	bcma_core_enable(core, 0);
+
 	/* Allocation and references */
 	net_dev = alloc_etherdev(sizeof(*bgmac));
 	if (!net_dev)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c linux-libre-4.4.107-gnu/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c	2016-01-10 21:04:11.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c	2017-12-20 11:24:39.000000000 -0500
@@ -1949,7 +1949,7 @@ u16 bnx2x_select_queue(struct net_device
 	}
 
 	/* select a non-FCoE queue */
-	return fallback(dev, skb) % BNX2X_NUM_ETH_QUEUES(bp);
+	return fallback(dev, skb) % (BNX2X_NUM_ETH_QUEUES(bp) * bp->max_cos);
 }
 
 void bnx2x_set_num_queues(struct bnx2x *bp)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c linux-libre-4.4.107-gnu/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c	2016-01-10 21:04:11.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c	2017-12-20 11:24:39.000000000 -0500
@@ -13582,7 +13582,7 @@ static int bnx2x_ptp_adjfreq(struct ptp_
 	if (!netif_running(bp->dev)) {
 		DP(BNX2X_MSG_PTP,
 		   "PTP adjfreq called while the interface is down\n");
-		return -EFAULT;
+		return -ENETDOWN;
 	}
 
 	if (ppb < 0) {
@@ -13641,6 +13641,12 @@ static int bnx2x_ptp_adjtime(struct ptp_
 {
 	struct bnx2x *bp = container_of(ptp, struct bnx2x, ptp_clock_info);
 
+	if (!netif_running(bp->dev)) {
+		DP(BNX2X_MSG_PTP,
+		   "PTP adjtime called while the interface is down\n");
+		return -ENETDOWN;
+	}
+
 	DP(BNX2X_MSG_PTP, "PTP adjtime called, delta = %llx\n", delta);
 
 	timecounter_adjtime(&bp->timecounter, delta);
@@ -13653,6 +13659,12 @@ static int bnx2x_ptp_gettime(struct ptp_
 	struct bnx2x *bp = container_of(ptp, struct bnx2x, ptp_clock_info);
 	u64 ns;
 
+	if (!netif_running(bp->dev)) {
+		DP(BNX2X_MSG_PTP,
+		   "PTP gettime called while the interface is down\n");
+		return -ENETDOWN;
+	}
+
 	ns = timecounter_read(&bp->timecounter);
 
 	DP(BNX2X_MSG_PTP, "PTP gettime called, ns = %llu\n", ns);
@@ -13668,6 +13680,12 @@ static int bnx2x_ptp_settime(struct ptp_
 	struct bnx2x *bp = container_of(ptp, struct bnx2x, ptp_clock_info);
 	u64 ns;
 
+	if (!netif_running(bp->dev)) {
+		DP(BNX2X_MSG_PTP,
+		   "PTP settime called while the interface is down\n");
+		return -ENETDOWN;
+	}
+
 	ns = timespec64_to_ns(ts);
 
 	DP(BNX2X_MSG_PTP, "PTP settime called, ns = %llu\n", ns);
@@ -14755,6 +14773,10 @@ static int bnx2x_get_fc_npiv(struct net_
 	}
 
 	offset = SHMEM2_RD(bp, fc_npiv_nvram_tbl_addr[BP_PORT(bp)]);
+	if (!offset) {
+		DP(BNX2X_MSG_MCP, "No FC-NPIV in NVRAM\n");
+		goto out;
+	}
 	DP(BNX2X_MSG_MCP, "Offset of FC-NPIV in NVRAM: %08x\n", offset);
 
 	/* Read the table contents from nvram */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c linux-libre-4.4.107-gnu/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c	2017-12-20 04:05:01.000000000 -0500
@@ -434,7 +434,9 @@ static int bnx2x_vf_mac_vlan_config(stru
 
 	/* Add/Remove the filter */
 	rc = bnx2x_config_vlan_mac(bp, &ramrod);
-	if (rc && rc != -EEXIST) {
+	if (rc == -EEXIST)
+		return 0;
+	if (rc) {
 		BNX2X_ERR("Failed to %s %s\n",
 			  filter->add ? "add" : "delete",
 			  (filter->type == BNX2X_VF_FILTER_VLAN_MAC) ?
@@ -444,6 +446,8 @@ static int bnx2x_vf_mac_vlan_config(stru
 		return rc;
 	}
 
+	filter->applied = true;
+
 	return 0;
 }
 
@@ -471,6 +475,8 @@ int bnx2x_vf_mac_vlan_config_list(struct
 		BNX2X_ERR("Managed only %d/%d filters - rolling back\n",
 			  i, filters->count + 1);
 		while (--i >= 0) {
+			if (!filters->filters[i].applied)
+				continue;
 			filters->filters[i].add = !filters->filters[i].add;
 			bnx2x_vf_mac_vlan_config(bp, vf, qid,
 						 &filters->filters[i],
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h linux-libre-4.4.107-gnu/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h
--- linux-libre-4.4-gnu/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h	2017-12-20 04:05:01.000000000 -0500
@@ -114,6 +114,7 @@ struct bnx2x_vf_mac_vlan_filter {
 	(BNX2X_VF_FILTER_MAC | BNX2X_VF_FILTER_VLAN) /*shortcut*/
 
 	bool add;
+	bool applied;
 	u8 *mac;
 	u16 vid;
 };
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c linux-libre-4.4.107-gnu/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c	2017-12-20 04:05:01.000000000 -0500
@@ -868,7 +868,7 @@ int bnx2x_vfpf_set_mcast(struct net_devi
 	struct bnx2x *bp = netdev_priv(dev);
 	struct vfpf_set_q_filters_tlv *req = &bp->vf2pf_mbox->req.set_q_filters;
 	struct pfvf_general_resp_tlv *resp = &bp->vf2pf_mbox->resp.general_resp;
-	int rc, i = 0;
+	int rc = 0, i = 0;
 	struct netdev_hw_addr *ha;
 
 	if (bp->state != BNX2X_STATE_OPEN) {
@@ -883,6 +883,15 @@ int bnx2x_vfpf_set_mcast(struct net_devi
 	/* Get Rx mode requested */
 	DP(NETIF_MSG_IFUP, "dev->flags = %x\n", dev->flags);
 
+	/* We support PFVF_MAX_MULTICAST_PER_VF mcast addresses tops */
+	if (netdev_mc_count(dev) > PFVF_MAX_MULTICAST_PER_VF) {
+		DP(NETIF_MSG_IFUP,
+		   "VF supports not more than %d multicast MAC addresses\n",
+		   PFVF_MAX_MULTICAST_PER_VF);
+		rc = -EINVAL;
+		goto out;
+	}
+
 	netdev_for_each_mc_addr(ha, dev) {
 		DP(NETIF_MSG_IFUP, "Adding mcast MAC: %pM\n",
 		   bnx2x_mc_addr(ha));
@@ -890,16 +899,6 @@ int bnx2x_vfpf_set_mcast(struct net_devi
 		i++;
 	}
 
-	/* We support four PFVF_MAX_MULTICAST_PER_VF mcast
-	  * addresses tops
-	  */
-	if (i >= PFVF_MAX_MULTICAST_PER_VF) {
-		DP(NETIF_MSG_IFUP,
-		   "VF supports not more than %d multicast MAC addresses\n",
-		   PFVF_MAX_MULTICAST_PER_VF);
-		return -EINVAL;
-	}
-
 	req->n_multicast = i;
 	req->flags |= VFPF_SET_Q_FILTERS_MULTICAST_CHANGED;
 	req->vf_qid = 0;
@@ -924,7 +923,7 @@ int bnx2x_vfpf_set_mcast(struct net_devi
 out:
 	bnx2x_vfpf_finalize(bp, &req->first_tlv);
 
-	return 0;
+	return rc;
 }
 
 /* request pf to add a vlan for the vf */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/broadcom/bnxt/bnxt.c linux-libre-4.4.107-gnu/drivers/net/ethernet/broadcom/bnxt/bnxt.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/broadcom/bnxt/bnxt.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/broadcom/bnxt/bnxt.c	2017-12-20 04:05:01.000000000 -0500
@@ -2473,7 +2473,8 @@ static int bnxt_alloc_ntp_fltrs(struct b
 		INIT_HLIST_HEAD(&bp->ntp_fltr_hash_tbl[i]);
 
 	bp->ntp_fltr_count = 0;
-	bp->ntp_fltr_bmap = kzalloc(BITS_TO_LONGS(BNXT_NTP_FLTR_MAX_FLTR),
+	bp->ntp_fltr_bmap = kcalloc(BITS_TO_LONGS(BNXT_NTP_FLTR_MAX_FLTR),
+				    sizeof(long),
 				    GFP_KERNEL);
 
 	if (!bp->ntp_fltr_bmap)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/broadcom/genet/bcmgenet.c linux-libre-4.4.107-gnu/drivers/net/ethernet/broadcom/genet/bcmgenet.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/broadcom/genet/bcmgenet.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/broadcom/genet/bcmgenet.c	2017-12-20 04:05:01.000000000 -0500
@@ -1,7 +1,7 @@
 /*
  * Broadcom GENET (Gigabit Ethernet) controller driver
  *
- * Copyright (c) 2014 Broadcom Corporation
+ * Copyright (c) 2014-2017 Broadcom
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -778,8 +778,9 @@ static const struct bcmgenet_stats bcmge
 	STAT_GENET_RUNT("rx_runt_bytes", mib.rx_runt_bytes),
 	/* Misc UniMAC counters */
 	STAT_GENET_MISC("rbuf_ovflow_cnt", mib.rbuf_ovflow_cnt,
-			UMAC_RBUF_OVFL_CNT),
-	STAT_GENET_MISC("rbuf_err_cnt", mib.rbuf_err_cnt, UMAC_RBUF_ERR_CNT),
+			UMAC_RBUF_OVFL_CNT_V1),
+	STAT_GENET_MISC("rbuf_err_cnt", mib.rbuf_err_cnt,
+			UMAC_RBUF_ERR_CNT_V1),
 	STAT_GENET_MISC("mdf_err_cnt", mib.mdf_err_cnt, UMAC_MDF_ERR_CNT),
 	STAT_GENET_SOFT_MIB("alloc_rx_buff_failed", mib.alloc_rx_buff_failed),
 	STAT_GENET_SOFT_MIB("rx_dma_failed", mib.rx_dma_failed),
@@ -821,6 +822,45 @@ static void bcmgenet_get_strings(struct
 	}
 }
 
+static u32 bcmgenet_update_stat_misc(struct bcmgenet_priv *priv, u16 offset)
+{
+	u16 new_offset;
+	u32 val;
+
+	switch (offset) {
+	case UMAC_RBUF_OVFL_CNT_V1:
+		if (GENET_IS_V2(priv))
+			new_offset = RBUF_OVFL_CNT_V2;
+		else
+			new_offset = RBUF_OVFL_CNT_V3PLUS;
+
+		val = bcmgenet_rbuf_readl(priv,	new_offset);
+		/* clear if overflowed */
+		if (val == ~0)
+			bcmgenet_rbuf_writel(priv, 0, new_offset);
+		break;
+	case UMAC_RBUF_ERR_CNT_V1:
+		if (GENET_IS_V2(priv))
+			new_offset = RBUF_ERR_CNT_V2;
+		else
+			new_offset = RBUF_ERR_CNT_V3PLUS;
+
+		val = bcmgenet_rbuf_readl(priv,	new_offset);
+		/* clear if overflowed */
+		if (val == ~0)
+			bcmgenet_rbuf_writel(priv, 0, new_offset);
+		break;
+	default:
+		val = bcmgenet_umac_readl(priv, offset);
+		/* clear if overflowed */
+		if (val == ~0)
+			bcmgenet_umac_writel(priv, 0, offset);
+		break;
+	}
+
+	return val;
+}
+
 static void bcmgenet_update_mib_counters(struct bcmgenet_priv *priv)
 {
 	int i, j = 0;
@@ -836,19 +876,28 @@ static void bcmgenet_update_mib_counters
 		case BCMGENET_STAT_NETDEV:
 		case BCMGENET_STAT_SOFT:
 			continue;
-		case BCMGENET_STAT_MIB_RX:
-		case BCMGENET_STAT_MIB_TX:
 		case BCMGENET_STAT_RUNT:
-			if (s->type != BCMGENET_STAT_MIB_RX)
-				offset = BCMGENET_STAT_OFFSET;
+			offset += BCMGENET_STAT_OFFSET;
+			/* fall through */
+		case BCMGENET_STAT_MIB_TX:
+			offset += BCMGENET_STAT_OFFSET;
+			/* fall through */
+		case BCMGENET_STAT_MIB_RX:
 			val = bcmgenet_umac_readl(priv,
 						  UMAC_MIB_START + j + offset);
+			offset = 0;	/* Reset Offset */
 			break;
 		case BCMGENET_STAT_MISC:
-			val = bcmgenet_umac_readl(priv, s->reg_offset);
-			/* clear if overflowed */
-			if (val == ~0)
-				bcmgenet_umac_writel(priv, 0, s->reg_offset);
+			if (GENET_IS_V1(priv)) {
+				val = bcmgenet_umac_readl(priv, s->reg_offset);
+				/* clear if overflowed */
+				if (val == ~0)
+					bcmgenet_umac_writel(priv, 0,
+							     s->reg_offset);
+			} else {
+				val = bcmgenet_update_stat_misc(priv,
+								s->reg_offset);
+			}
 			break;
 		}
 
@@ -1168,6 +1217,7 @@ static unsigned int __bcmgenet_tx_reclai
 					  struct bcmgenet_tx_ring *ring)
 {
 	struct bcmgenet_priv *priv = netdev_priv(dev);
+	struct device *kdev = &priv->pdev->dev;
 	struct enet_cb *tx_cb_ptr;
 	struct netdev_queue *txq;
 	unsigned int pkts_compl = 0;
@@ -1195,15 +1245,15 @@ static unsigned int __bcmgenet_tx_reclai
 			pkts_compl++;
 			dev->stats.tx_packets++;
 			dev->stats.tx_bytes += tx_cb_ptr->skb->len;
-			dma_unmap_single(&dev->dev,
+			dma_unmap_single(kdev,
 					 dma_unmap_addr(tx_cb_ptr, dma_addr),
-					 tx_cb_ptr->skb->len,
+					 dma_unmap_len(tx_cb_ptr, dma_len),
 					 DMA_TO_DEVICE);
 			bcmgenet_free_cb(tx_cb_ptr);
 		} else if (dma_unmap_addr(tx_cb_ptr, dma_addr)) {
 			dev->stats.tx_bytes +=
 				dma_unmap_len(tx_cb_ptr, dma_len);
-			dma_unmap_page(&dev->dev,
+			dma_unmap_page(kdev,
 				       dma_unmap_addr(tx_cb_ptr, dma_addr),
 				       dma_unmap_len(tx_cb_ptr, dma_len),
 				       DMA_TO_DEVICE);
@@ -1308,7 +1358,7 @@ static int bcmgenet_xmit_single(struct n
 	}
 
 	dma_unmap_addr_set(tx_cb_ptr, dma_addr, mapping);
-	dma_unmap_len_set(tx_cb_ptr, dma_len, skb->len);
+	dma_unmap_len_set(tx_cb_ptr, dma_len, skb_len);
 	length_status = (skb_len << DMA_BUFLENGTH_SHIFT) | dma_desc_flags |
 			(priv->hw_params->qtag_mask << DMA_TX_QTAG_SHIFT) |
 			DMA_TX_APPEND_CRC;
@@ -1754,6 +1804,7 @@ static int bcmgenet_alloc_rx_buffers(str
 
 static void bcmgenet_free_rx_buffers(struct bcmgenet_priv *priv)
 {
+	struct device *kdev = &priv->pdev->dev;
 	struct enet_cb *cb;
 	int i;
 
@@ -1761,7 +1812,7 @@ static void bcmgenet_free_rx_buffers(str
 		cb = &priv->rx_cbs[i];
 
 		if (dma_unmap_addr(cb, dma_addr)) {
-			dma_unmap_single(&priv->dev->dev,
+			dma_unmap_single(kdev,
 					 dma_unmap_addr(cb, dma_addr),
 					 priv->rx_buf_len, DMA_FROM_DEVICE);
 			dma_unmap_addr_set(cb, dma_addr, 0);
@@ -2899,6 +2950,8 @@ err_irq0:
 err_fini_dma:
 	bcmgenet_fini_dma(priv);
 err_clk_disable:
+	if (priv->internal_phy)
+		bcmgenet_power_down(priv, GENET_POWER_PASSIVE);
 	clk_disable_unprepare(priv->clk);
 	return ret;
 }
@@ -3275,6 +3328,12 @@ static void bcmgenet_set_hw_params(struc
 	 */
 	gphy_rev = reg & 0xffff;
 
+	/* This is reserved so should require special treatment */
+	if (gphy_rev == 0 || gphy_rev == 0x01ff) {
+		pr_warn("Invalid GPHY revision detected: 0x%04x\n", gphy_rev);
+		return;
+	}
+
 	/* This is the good old scheme, just GPHY major, no minor nor patch */
 	if ((gphy_rev & 0xf0) != 0)
 		priv->gphy_rev = gphy_rev << 8;
@@ -3283,12 +3342,6 @@ static void bcmgenet_set_hw_params(struc
 	else if ((gphy_rev & 0xff00) != 0)
 		priv->gphy_rev = gphy_rev;
 
-	/* This is reserved so should require special treatment */
-	else if (gphy_rev == 0 || gphy_rev == 0x01ff) {
-		pr_warn("Invalid GPHY revision detected: 0x%04x\n", gphy_rev);
-		return;
-	}
-
 #ifdef CONFIG_PHYS_ADDR_T_64BIT
 	if (!(params->flags & GENET_HAS_40BITS))
 		pr_warn("GENET does not support 40-bits PA\n");
@@ -3331,6 +3384,7 @@ static int bcmgenet_probe(struct platfor
 	const void *macaddr;
 	struct resource *r;
 	int err = -EIO;
+	const char *phy_mode_str;
 
 	/* Up to GENET_MAX_MQ_CNT + 1 TX queues and RX queues */
 	dev = alloc_etherdev_mqs(sizeof(*priv), GENET_MAX_MQ_CNT + 1,
@@ -3436,6 +3490,13 @@ static int bcmgenet_probe(struct platfor
 		priv->clk_eee = NULL;
 	}
 
+	/* If this is an internal GPHY, power it on now, before UniMAC is
+	 * brought out of reset as absolutely no UniMAC activity is allowed
+	 */
+	if (dn && !of_property_read_string(dn, "phy-mode", &phy_mode_str) &&
+	    !strcasecmp(phy_mode_str, "internal"))
+		bcmgenet_power_up(priv, GENET_POWER_PASSIVE);
+
 	err = reset_umac(priv);
 	if (err)
 		goto err_clk_disable;
@@ -3493,7 +3554,8 @@ static int bcmgenet_suspend(struct devic
 
 	bcmgenet_netif_stop(dev);
 
-	phy_suspend(priv->phydev);
+	if (!device_may_wakeup(d))
+		phy_suspend(priv->phydev);
 
 	netif_device_detach(dev);
 
@@ -3590,7 +3652,8 @@ static int bcmgenet_resume(struct device
 
 	netif_device_attach(dev);
 
-	phy_resume(priv->phydev);
+	if (!device_may_wakeup(d))
+		phy_resume(priv->phydev);
 
 	if (priv->eee.eee_enabled)
 		bcmgenet_eee_enable_set(dev, true);
@@ -3600,6 +3663,8 @@ static int bcmgenet_resume(struct device
 	return 0;
 
 out_clk_disable:
+	if (priv->internal_phy)
+		bcmgenet_power_down(priv, GENET_POWER_PASSIVE);
 	clk_disable_unprepare(priv->clk);
 	return ret;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/broadcom/genet/bcmgenet.h linux-libre-4.4.107-gnu/drivers/net/ethernet/broadcom/genet/bcmgenet.h
--- linux-libre-4.4-gnu/drivers/net/ethernet/broadcom/genet/bcmgenet.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/broadcom/genet/bcmgenet.h	2017-12-20 04:05:01.000000000 -0500
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014 Broadcom Corporation
+ * Copyright (c) 2014-2017 Broadcom
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -214,7 +214,9 @@ struct bcmgenet_mib_counters {
 #define  MDIO_REG_SHIFT			16
 #define  MDIO_REG_MASK			0x1F
 
-#define UMAC_RBUF_OVFL_CNT		0x61C
+#define UMAC_RBUF_OVFL_CNT_V1		0x61C
+#define RBUF_OVFL_CNT_V2		0x80
+#define RBUF_OVFL_CNT_V3PLUS		0x94
 
 #define UMAC_MPD_CTRL			0x620
 #define  MPD_EN				(1 << 0)
@@ -224,7 +226,9 @@ struct bcmgenet_mib_counters {
 
 #define UMAC_MPD_PW_MS			0x624
 #define UMAC_MPD_PW_LS			0x628
-#define UMAC_RBUF_ERR_CNT		0x634
+#define UMAC_RBUF_ERR_CNT_V1		0x634
+#define RBUF_ERR_CNT_V2			0x84
+#define RBUF_ERR_CNT_V3PLUS		0x98
 #define UMAC_MDF_ERR_CNT		0x638
 #define UMAC_MDF_CTRL			0x650
 #define UMAC_MDF_ADDR			0x654
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/broadcom/genet/bcmmii.c linux-libre-4.4.107-gnu/drivers/net/ethernet/broadcom/genet/bcmmii.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/broadcom/genet/bcmmii.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/broadcom/genet/bcmmii.c	2017-12-20 04:05:01.000000000 -0500
@@ -220,20 +220,6 @@ void bcmgenet_phy_power_set(struct net_d
 	udelay(60);
 }
 
-static void bcmgenet_internal_phy_setup(struct net_device *dev)
-{
-	struct bcmgenet_priv *priv = netdev_priv(dev);
-	u32 reg;
-
-	/* Power up PHY */
-	bcmgenet_phy_power_set(dev, true);
-	/* enable APD */
-	reg = bcmgenet_ext_readl(priv, EXT_EXT_PWR_MGMT);
-	reg |= EXT_PWR_DN_EN_LD;
-	bcmgenet_ext_writel(priv, reg, EXT_EXT_PWR_MGMT);
-	bcmgenet_mii_reset(dev);
-}
-
 static void bcmgenet_moca_phy_setup(struct bcmgenet_priv *priv)
 {
 	u32 reg;
@@ -281,7 +267,6 @@ int bcmgenet_mii_config(struct net_devic
 
 		if (priv->internal_phy) {
 			phy_name = "internal PHY";
-			bcmgenet_internal_phy_setup(dev);
 		} else if (priv->phy_interface == PHY_INTERFACE_MODE_MOCA) {
 			phy_name = "MoCA";
 			bcmgenet_moca_phy_setup(priv);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/broadcom/tg3.c linux-libre-4.4.107-gnu/drivers/net/ethernet/broadcom/tg3.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/broadcom/tg3.c	2016-01-10 21:05:42.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/broadcom/tg3.c	2017-12-20 11:27:36.000000000 -0500
@@ -7824,6 +7824,14 @@ static int tigon3_dma_hwbug_workaround(s
 	return ret;
 }
 
+static bool tg3_tso_bug_gso_check(struct tg3_napi *tnapi, struct sk_buff *skb)
+{
+	/* Check if we will never have enough descriptors,
+	 * as gso_segs can be more than current ring size
+	 */
+	return skb_shinfo(skb)->gso_segs < tnapi->tx_pending / 3;
+}
+
 static netdev_tx_t tg3_start_xmit(struct sk_buff *, struct net_device *);
 
 /* Use GSO to workaround all TSO packets that meet HW bug conditions
@@ -7927,14 +7935,19 @@ static netdev_tx_t tg3_start_xmit(struct
 		 * vlan encapsulated.
 		 */
 		if (skb->protocol == htons(ETH_P_8021Q) ||
-		    skb->protocol == htons(ETH_P_8021AD))
-			return tg3_tso_bug(tp, tnapi, txq, skb);
+		    skb->protocol == htons(ETH_P_8021AD)) {
+			if (tg3_tso_bug_gso_check(tnapi, skb))
+				return tg3_tso_bug(tp, tnapi, txq, skb);
+			goto drop;
+		}
 
 		if (!skb_is_gso_v6(skb)) {
 			if (unlikely((ETH_HLEN + hdr_len) > 80) &&
-			    tg3_flag(tp, TSO_BUG))
-				return tg3_tso_bug(tp, tnapi, txq, skb);
-
+			    tg3_flag(tp, TSO_BUG)) {
+				if (tg3_tso_bug_gso_check(tnapi, skb))
+					return tg3_tso_bug(tp, tnapi, txq, skb);
+				goto drop;
+			}
 			ip_csum = iph->check;
 			ip_tot_len = iph->tot_len;
 			iph->check = 0;
@@ -8066,7 +8079,7 @@ static netdev_tx_t tg3_start_xmit(struct
 	if (would_hit_hwbug) {
 		tg3_tx_skb_unmap(tnapi, tnapi->tx_prod, i);
 
-		if (mss) {
+		if (mss && tg3_tso_bug_gso_check(tnapi, skb)) {
 			/* If it's a TSO packet, do GSO instead of
 			 * allocating and copying to a large linear SKB
 			 */
@@ -8700,11 +8713,14 @@ static void tg3_free_consistent(struct t
 	tg3_mem_rx_release(tp);
 	tg3_mem_tx_release(tp);
 
+	/* Protect tg3_get_stats64() from reading freed tp->hw_stats. */
+	tg3_full_lock(tp, 0);
 	if (tp->hw_stats) {
 		dma_free_coherent(&tp->pdev->dev, sizeof(struct tg3_hw_stats),
 				  tp->hw_stats, tp->stats_mapping);
 		tp->hw_stats = NULL;
 	}
+	tg3_full_unlock(tp);
 }
 
 /*
@@ -12009,7 +12025,7 @@ static int tg3_set_eeprom(struct net_dev
 	int ret;
 	u32 offset, len, b_offset, odd_len;
 	u8 *buf;
-	__be32 start, end;
+	__be32 start = 0, end;
 
 	if (tg3_flag(tp, NO_NVRAM) ||
 	    eeprom->magic != TG3_EEPROM_MAGIC)
@@ -18120,14 +18136,14 @@ static pci_ers_result_t tg3_io_error_det
 
 	rtnl_lock();
 
-	/* We needn't recover from permanent error */
-	if (state == pci_channel_io_frozen)
-		tp->pcierr_recovery = true;
-
 	/* We probably don't have netdev yet */
 	if (!netdev || !netif_running(netdev))
 		goto done;
 
+	/* We needn't recover from permanent error */
+	if (state == pci_channel_io_frozen)
+		tp->pcierr_recovery = true;
+
 	tg3_phy_stop(tp);
 
 	tg3_netif_stop(tp);
@@ -18224,7 +18240,7 @@ static void tg3_io_resume(struct pci_dev
 
 	rtnl_lock();
 
-	if (!netif_running(netdev))
+	if (!netdev || !netif_running(netdev))
 		goto done;
 
 	tg3_full_lock(tp, 0);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/cadence/macb.c linux-libre-4.4.107-gnu/drivers/net/ethernet/cadence/macb.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/cadence/macb.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/cadence/macb.c	2017-12-20 04:05:01.000000000 -0500
@@ -2405,9 +2405,9 @@ static int macb_init(struct platform_dev
 	if (bp->phy_interface == PHY_INTERFACE_MODE_RGMII)
 		val = GEM_BIT(RGMII);
 	else if (bp->phy_interface == PHY_INTERFACE_MODE_RMII &&
-		 (bp->caps & MACB_CAPS_USRIO_DEFAULT_IS_MII))
+		 (bp->caps & MACB_CAPS_USRIO_DEFAULT_IS_MII_GMII))
 		val = MACB_BIT(RMII);
-	else if (!(bp->caps & MACB_CAPS_USRIO_DEFAULT_IS_MII))
+	else if (!(bp->caps & MACB_CAPS_USRIO_DEFAULT_IS_MII_GMII))
 		val = MACB_BIT(MII);
 
 	if (bp->caps & MACB_CAPS_USRIO_HAS_CLKEN)
@@ -2738,7 +2738,7 @@ static int at91ether_init(struct platfor
 }
 
 static const struct macb_config at91sam9260_config = {
-	.caps = MACB_CAPS_USRIO_HAS_CLKEN | MACB_CAPS_USRIO_DEFAULT_IS_MII,
+	.caps = MACB_CAPS_USRIO_HAS_CLKEN | MACB_CAPS_USRIO_DEFAULT_IS_MII_GMII,
 	.clk_init = macb_clk_init,
 	.init = macb_init,
 };
@@ -2751,21 +2751,22 @@ static const struct macb_config pc302gem
 };
 
 static const struct macb_config sama5d2_config = {
-	.caps = 0,
+	.caps = MACB_CAPS_USRIO_DEFAULT_IS_MII_GMII,
 	.dma_burst_length = 16,
 	.clk_init = macb_clk_init,
 	.init = macb_init,
 };
 
 static const struct macb_config sama5d3_config = {
-	.caps = MACB_CAPS_SG_DISABLED | MACB_CAPS_GIGABIT_MODE_AVAILABLE,
+	.caps = MACB_CAPS_SG_DISABLED | MACB_CAPS_GIGABIT_MODE_AVAILABLE
+	      | MACB_CAPS_USRIO_DEFAULT_IS_MII_GMII,
 	.dma_burst_length = 16,
 	.clk_init = macb_clk_init,
 	.init = macb_init,
 };
 
 static const struct macb_config sama5d4_config = {
-	.caps = 0,
+	.caps = MACB_CAPS_USRIO_DEFAULT_IS_MII_GMII,
 	.dma_burst_length = 4,
 	.clk_init = macb_clk_init,
 	.init = macb_init,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/cadence/macb.h linux-libre-4.4.107-gnu/drivers/net/ethernet/cadence/macb.h
--- linux-libre-4.4-gnu/drivers/net/ethernet/cadence/macb.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/cadence/macb.h	2017-12-20 04:05:01.000000000 -0500
@@ -398,7 +398,7 @@
 /* Capability mask bits */
 #define MACB_CAPS_ISR_CLEAR_ON_WRITE		0x00000001
 #define MACB_CAPS_USRIO_HAS_CLKEN		0x00000002
-#define MACB_CAPS_USRIO_DEFAULT_IS_MII		0x00000004
+#define MACB_CAPS_USRIO_DEFAULT_IS_MII_GMII	0x00000004
 #define MACB_CAPS_NO_GIGABIT_HALF		0x00000008
 #define MACB_CAPS_FIFO_MODE			0x10000000
 #define MACB_CAPS_GIGABIT_MODE_AVAILABLE	0x20000000
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/cavium/liquidio/lio_main.c linux-libre-4.4.107-gnu/drivers/net/ethernet/cavium/liquidio/lio_main.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/cavium/liquidio/lio_main.c	2016-01-10 21:04:41.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/cavium/liquidio/lio_main.c	2017-12-20 11:25:43.000000000 -0500
@@ -2524,7 +2524,7 @@ static void handle_timestamp(struct octe
 
 	octeon_swap_8B_data(&resp->timestamp, 1);
 
-	if (unlikely((skb_shinfo(skb)->tx_flags | SKBTX_IN_PROGRESS) != 0)) {
+	if (unlikely((skb_shinfo(skb)->tx_flags & SKBTX_IN_PROGRESS) != 0)) {
 		struct skb_shared_hwtstamps ts;
 		u64 ns = resp->timestamp;
 
@@ -2821,7 +2821,7 @@ static int liquidio_xmit(struct sk_buff
 		if (!g) {
 			netif_info(lio, tx_err, lio->netdev,
 				   "Transmit scatter gather: glist null!\n");
-			goto lio_xmit_failed;
+			goto lio_xmit_dma_failed;
 		}
 
 		cmdsetup.s.gather = 1;
@@ -2892,7 +2892,7 @@ static int liquidio_xmit(struct sk_buff
 	else
 		status = octnet_send_nic_data_pkt(oct, &ndata, xmit_more);
 	if (status == IQ_SEND_FAILED)
-		goto lio_xmit_failed;
+		goto lio_xmit_dma_failed;
 
 	netif_info(lio, tx_queued, lio->netdev, "Transmit queued successfully\n");
 
@@ -2906,12 +2906,13 @@ static int liquidio_xmit(struct sk_buff
 
 	return NETDEV_TX_OK;
 
+lio_xmit_dma_failed:
+	dma_unmap_single(&oct->pci_dev->dev, ndata.cmd.dptr,
+			 ndata.datasize, DMA_TO_DEVICE);
 lio_xmit_failed:
 	stats->tx_dropped++;
 	netif_info(lio, tx_err, lio->netdev, "IQ%d Transmit dropped:%llu\n",
 		   iq_no, stats->tx_dropped);
-	dma_unmap_single(&oct->pci_dev->dev, ndata.cmd.dptr,
-			 ndata.datasize, DMA_TO_DEVICE);
 	recv_buffer_free(skb);
 	return NETDEV_TX_OK;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/cavium/thunder/nic.h linux-libre-4.4.107-gnu/drivers/net/ethernet/cavium/thunder/nic.h
--- linux-libre-4.4-gnu/drivers/net/ethernet/cavium/thunder/nic.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/cavium/thunder/nic.h	2017-12-20 04:05:01.000000000 -0500
@@ -116,6 +116,15 @@
 #define NIC_PF_INTR_ID_MBOX0		8
 #define NIC_PF_INTR_ID_MBOX1		9
 
+/* Minimum FIFO level before all packets for the CQ are dropped
+ *
+ * This value ensures that once a packet has been "accepted"
+ * for reception it will not get dropped due to non-availability
+ * of CQ descriptor. An errata in HW mandates this value to be
+ * atleast 0x100.
+ */
+#define NICPF_CQM_MIN_DROP_LEVEL       0x100
+
 /* Global timer for CQ timer thresh interrupts
  * Calculated for SCLK of 700Mhz
  * value written should be a 1/16th of what is expected
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/cavium/thunder/nic_main.c linux-libre-4.4.107-gnu/drivers/net/ethernet/cavium/thunder/nic_main.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/cavium/thunder/nic_main.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/cavium/thunder/nic_main.c	2017-12-20 04:05:01.000000000 -0500
@@ -309,6 +309,7 @@ static void nic_set_lmac_vf_mapping(stru
 static void nic_init_hw(struct nicpf *nic)
 {
 	int i;
+	u64 cqm_cfg;
 
 	/* Enable NIC HW block */
 	nic_reg_write(nic, NIC_PF_CFG, 0x3);
@@ -345,6 +346,11 @@ static void nic_init_hw(struct nicpf *ni
 	/* Enable VLAN ethertype matching and stripping */
 	nic_reg_write(nic, NIC_PF_RX_ETYPE_0_7,
 		      (2 << 19) | (ETYPE_ALG_VLAN_STRIP << 16) | ETH_P_8021Q);
+
+	/* Check if HW expected value is higher (could be in future chips) */
+	cqm_cfg = nic_reg_read(nic, NIC_PF_CQM_CFG);
+	if (cqm_cfg < NICPF_CQM_MIN_DROP_LEVEL)
+		nic_reg_write(nic, NIC_PF_CQM_CFG, NICPF_CQM_MIN_DROP_LEVEL);
 }
 
 /* Channel parse index configuration */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/cavium/thunder/nic_reg.h linux-libre-4.4.107-gnu/drivers/net/ethernet/cavium/thunder/nic_reg.h
--- linux-libre-4.4-gnu/drivers/net/ethernet/cavium/thunder/nic_reg.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/cavium/thunder/nic_reg.h	2017-12-20 04:05:01.000000000 -0500
@@ -21,7 +21,7 @@
 #define   NIC_PF_TCP_TIMER			(0x0060)
 #define   NIC_PF_BP_CFG				(0x0080)
 #define   NIC_PF_RRM_CFG			(0x0088)
-#define   NIC_PF_CQM_CF				(0x00A0)
+#define   NIC_PF_CQM_CFG			(0x00A0)
 #define   NIC_PF_CNM_CF				(0x00A8)
 #define   NIC_PF_CNM_STATUS			(0x00B0)
 #define   NIC_PF_CQ_AVG_CFG			(0x00C0)
@@ -170,7 +170,6 @@
 #define   NIC_QSET_SQ_0_7_DOOR			(0x010838)
 #define   NIC_QSET_SQ_0_7_STATUS		(0x010840)
 #define   NIC_QSET_SQ_0_7_DEBUG			(0x010848)
-#define   NIC_QSET_SQ_0_7_CNM_CHG		(0x010860)
 #define   NIC_QSET_SQ_0_7_STAT_0_1		(0x010900)
 
 #define   NIC_QSET_RBDR_0_1_CFG			(0x010C00)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/cavium/thunder/nicvf_ethtool.c linux-libre-4.4.107-gnu/drivers/net/ethernet/cavium/thunder/nicvf_ethtool.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/cavium/thunder/nicvf_ethtool.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/cavium/thunder/nicvf_ethtool.c	2017-12-20 04:05:01.000000000 -0500
@@ -380,7 +380,10 @@ static void nicvf_get_regs(struct net_de
 		p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_SQ_0_7_DOOR, q);
 		p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_SQ_0_7_STATUS, q);
 		p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_SQ_0_7_DEBUG, q);
-		p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_SQ_0_7_CNM_CHG, q);
+		/* Padding, was NIC_QSET_SQ_0_7_CNM_CHG, which
+		 * produces bus errors when read
+		 */
+		p[i++] = 0;
 		p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_SQ_0_7_STAT_0_1, q);
 		reg_offset = NIC_QSET_SQ_0_7_STAT_0_1 | (1 << 3);
 		p[i++] = nicvf_queue_reg_read(nic, reg_offset, q);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/cavium/thunder/nicvf_main.c linux-libre-4.4.107-gnu/drivers/net/ethernet/cavium/thunder/nicvf_main.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/cavium/thunder/nicvf_main.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/cavium/thunder/nicvf_main.c	2017-12-20 04:05:01.000000000 -0500
@@ -566,8 +566,7 @@ static inline void nicvf_set_rxhash(stru
 
 static void nicvf_rcv_pkt_handler(struct net_device *netdev,
 				  struct napi_struct *napi,
-				  struct cmp_queue *cq,
-				  struct cqe_rx_t *cqe_rx, int cqe_type)
+				  struct cqe_rx_t *cqe_rx)
 {
 	struct sk_buff *skb;
 	struct nicvf *nic = netdev_priv(netdev);
@@ -583,7 +582,7 @@ static void nicvf_rcv_pkt_handler(struct
 	}
 
 	/* Check for errors */
-	err = nicvf_check_cqe_rx_errs(nic, cq, cqe_rx);
+	err = nicvf_check_cqe_rx_errs(nic, cqe_rx);
 	if (err && !cqe_rx->rb_cnt)
 		return;
 
@@ -674,8 +673,7 @@ loop:
 			   cq_idx, cq_desc->cqe_type);
 		switch (cq_desc->cqe_type) {
 		case CQE_TYPE_RX:
-			nicvf_rcv_pkt_handler(netdev, napi, cq,
-					      cq_desc, CQE_TYPE_RX);
+			nicvf_rcv_pkt_handler(netdev, napi, cq_desc);
 			work_done++;
 		break;
 		case CQE_TYPE_SEND:
@@ -1117,7 +1115,6 @@ int nicvf_stop(struct net_device *netdev
 
 	/* Clear multiqset info */
 	nic->pnicvf = nic;
-	nic->sqs_count = 0;
 
 	return 0;
 }
@@ -1346,6 +1343,9 @@ void nicvf_update_stats(struct nicvf *ni
 	drv_stats->tx_frames_ok = stats->tx_ucast_frames_ok +
 				  stats->tx_bcast_frames_ok +
 				  stats->tx_mcast_frames_ok;
+	drv_stats->rx_frames_ok = stats->rx_ucast_frames +
+				  stats->rx_bcast_frames +
+				  stats->rx_mcast_frames;
 	drv_stats->rx_drops = stats->rx_drop_red +
 			      stats->rx_drop_overrun;
 	drv_stats->tx_drops = stats->tx_drops;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/cavium/thunder/nicvf_queues.c linux-libre-4.4.107-gnu/drivers/net/ethernet/cavium/thunder/nicvf_queues.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/cavium/thunder/nicvf_queues.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/cavium/thunder/nicvf_queues.c	2017-12-20 04:05:01.000000000 -0500
@@ -550,6 +550,7 @@ static void nicvf_rcv_queue_config(struc
 		nicvf_config_vlan_stripping(nic, nic->netdev->features);
 
 	/* Enable Receive queue */
+	memset(&rq_cfg, 0, sizeof(struct rq_cfg));
 	rq_cfg.ena = 1;
 	rq_cfg.tcp_ena = 0;
 	nicvf_queue_reg_write(nic, NIC_QSET_RQ_0_7_CFG, qidx, *(u64 *)&rq_cfg);
@@ -582,6 +583,7 @@ void nicvf_cmp_queue_config(struct nicvf
 			      qidx, (u64)(cq->dmem.phys_base));
 
 	/* Enable Completion queue */
+	memset(&cq_cfg, 0, sizeof(struct cq_cfg));
 	cq_cfg.ena = 1;
 	cq_cfg.reset = 0;
 	cq_cfg.caching = 0;
@@ -630,6 +632,7 @@ static void nicvf_snd_queue_config(struc
 			      qidx, (u64)(sq->dmem.phys_base));
 
 	/* Enable send queue  & set queue size */
+	memset(&sq_cfg, 0, sizeof(struct sq_cfg));
 	sq_cfg.ena = 1;
 	sq_cfg.reset = 0;
 	sq_cfg.ldwb = 0;
@@ -666,6 +669,7 @@ static void nicvf_rbdr_config(struct nic
 
 	/* Enable RBDR  & set queue size */
 	/* Buffer size should be in multiples of 128 bytes */
+	memset(&rbdr_cfg, 0, sizeof(struct rbdr_cfg));
 	rbdr_cfg.ena = 1;
 	rbdr_cfg.reset = 0;
 	rbdr_cfg.ldwb = 0;
@@ -1410,16 +1414,12 @@ void nicvf_update_sq_stats(struct nicvf
 }
 
 /* Check for errors in the receive cmp.queue entry */
-int nicvf_check_cqe_rx_errs(struct nicvf *nic,
-			    struct cmp_queue *cq, struct cqe_rx_t *cqe_rx)
+int nicvf_check_cqe_rx_errs(struct nicvf *nic, struct cqe_rx_t *cqe_rx)
 {
 	struct nicvf_hw_stats *stats = &nic->hw_stats;
-	struct nicvf_drv_stats *drv_stats = &nic->drv_stats;
 
-	if (!cqe_rx->err_level && !cqe_rx->err_opcode) {
-		drv_stats->rx_frames_ok++;
+	if (!cqe_rx->err_level && !cqe_rx->err_opcode)
 		return 0;
-	}
 
 	if (netif_msg_rx_err(nic))
 		netdev_err(nic->netdev,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/cavium/thunder/nicvf_queues.h linux-libre-4.4.107-gnu/drivers/net/ethernet/cavium/thunder/nicvf_queues.h
--- linux-libre-4.4-gnu/drivers/net/ethernet/cavium/thunder/nicvf_queues.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/cavium/thunder/nicvf_queues.h	2017-12-20 04:05:01.000000000 -0500
@@ -344,8 +344,7 @@ u64  nicvf_queue_reg_read(struct nicvf *
 /* Stats */
 void nicvf_update_rq_stats(struct nicvf *nic, int rq_idx);
 void nicvf_update_sq_stats(struct nicvf *nic, int sq_idx);
-int nicvf_check_cqe_rx_errs(struct nicvf *nic,
-			    struct cmp_queue *cq, struct cqe_rx_t *cqe_rx);
+int nicvf_check_cqe_rx_errs(struct nicvf *nic, struct cqe_rx_t *cqe_rx);
 int nicvf_check_cqe_tx_errs(struct nicvf *nic,
 			    struct cmp_queue *cq, struct cqe_send_t *cqe_tx);
 #endif /* NICVF_QUEUES_H */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/cavium/thunder/thunder_bgx.c linux-libre-4.4.107-gnu/drivers/net/ethernet/cavium/thunder/thunder_bgx.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/cavium/thunder/thunder_bgx.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/cavium/thunder/thunder_bgx.c	2017-12-20 04:05:01.000000000 -0500
@@ -549,7 +549,9 @@ static int bgx_xaui_check_link(struct lm
 	}
 
 	/* Clear rcvflt bit (latching high) and read it back */
-	bgx_reg_modify(bgx, lmacid, BGX_SPUX_STATUS2, SPU_STATUS2_RCVFLT);
+	if (bgx_reg_read(bgx, lmacid, BGX_SPUX_STATUS2) & SPU_STATUS2_RCVFLT)
+		bgx_reg_modify(bgx, lmacid,
+			       BGX_SPUX_STATUS2, SPU_STATUS2_RCVFLT);
 	if (bgx_reg_read(bgx, lmacid, BGX_SPUX_STATUS2) & SPU_STATUS2_RCVFLT) {
 		dev_err(&bgx->pdev->dev, "Receive fault, retry training\n");
 		if (bgx->use_training) {
@@ -568,13 +570,6 @@ static int bgx_xaui_check_link(struct lm
 		return -1;
 	}
 
-	/* Wait for MAC RX to be ready */
-	if (bgx_poll_reg(bgx, lmacid, BGX_SMUX_RX_CTL,
-			 SMU_RX_CTL_STATUS, true)) {
-		dev_err(&bgx->pdev->dev, "SMU RX link not okay\n");
-		return -1;
-	}
-
 	/* Wait for BGX RX to be idle */
 	if (bgx_poll_reg(bgx, lmacid, BGX_SMUX_CTL, SMU_CTL_RX_IDLE, false)) {
 		dev_err(&bgx->pdev->dev, "SMU RX not idle\n");
@@ -587,29 +582,30 @@ static int bgx_xaui_check_link(struct lm
 		return -1;
 	}
 
-	if (bgx_reg_read(bgx, lmacid, BGX_SPUX_STATUS2) & SPU_STATUS2_RCVFLT) {
-		dev_err(&bgx->pdev->dev, "Receive fault\n");
-		return -1;
-	}
-
-	/* Receive link is latching low. Force it high and verify it */
-	bgx_reg_modify(bgx, lmacid, BGX_SPUX_STATUS1, SPU_STATUS1_RCV_LNK);
-	if (bgx_poll_reg(bgx, lmacid, BGX_SPUX_STATUS1,
-			 SPU_STATUS1_RCV_LNK, false)) {
-		dev_err(&bgx->pdev->dev, "SPU receive link down\n");
-		return -1;
-	}
-
+	/* Clear receive packet disable */
 	cfg = bgx_reg_read(bgx, lmacid, BGX_SPUX_MISC_CONTROL);
 	cfg &= ~SPU_MISC_CTL_RX_DIS;
 	bgx_reg_write(bgx, lmacid, BGX_SPUX_MISC_CONTROL, cfg);
-	return 0;
+
+	/* Check for MAC RX faults */
+	cfg = bgx_reg_read(bgx, lmacid, BGX_SMUX_RX_CTL);
+	/* 0 - Link is okay, 1 - Local fault, 2 - Remote fault */
+	cfg &= SMU_RX_CTL_STATUS;
+	if (!cfg)
+		return 0;
+
+	/* Rx local/remote fault seen.
+	 * Do lmac reinit to see if condition recovers
+	 */
+	bgx_lmac_xaui_init(bgx, lmacid, bgx->lmac_type);
+
+	return -1;
 }
 
 static void bgx_poll_for_link(struct work_struct *work)
 {
 	struct lmac *lmac;
-	u64 link;
+	u64 spu_link, smu_link;
 
 	lmac = container_of(work, struct lmac, dwork.work);
 
@@ -619,8 +615,11 @@ static void bgx_poll_for_link(struct wor
 	bgx_poll_reg(lmac->bgx, lmac->lmacid, BGX_SPUX_STATUS1,
 		     SPU_STATUS1_RCV_LNK, false);
 
-	link = bgx_reg_read(lmac->bgx, lmac->lmacid, BGX_SPUX_STATUS1);
-	if (link & SPU_STATUS1_RCV_LNK) {
+	spu_link = bgx_reg_read(lmac->bgx, lmac->lmacid, BGX_SPUX_STATUS1);
+	smu_link = bgx_reg_read(lmac->bgx, lmac->lmacid, BGX_SMUX_RX_CTL);
+
+	if ((spu_link & SPU_STATUS1_RCV_LNK) &&
+	    !(smu_link & SMU_RX_CTL_STATUS)) {
 		lmac->link_up = 1;
 		if (lmac->bgx->lmac_type == BGX_MODE_XLAUI)
 			lmac->last_speed = 40000;
@@ -634,9 +633,15 @@ static void bgx_poll_for_link(struct wor
 	}
 
 	if (lmac->last_link != lmac->link_up) {
+		if (lmac->link_up) {
+			if (bgx_xaui_check_link(lmac)) {
+				/* Errors, clear link_up state */
+				lmac->link_up = 0;
+				lmac->last_speed = SPEED_UNKNOWN;
+				lmac->last_duplex = DUPLEX_UNKNOWN;
+			}
+		}
 		lmac->last_link = lmac->link_up;
-		if (lmac->link_up)
-			bgx_xaui_check_link(lmac);
 	}
 
 	queue_delayed_work(lmac->check_link, &lmac->dwork, HZ * 2);
@@ -708,7 +713,7 @@ static int bgx_lmac_enable(struct bgx *b
 static void bgx_lmac_disable(struct bgx *bgx, u8 lmacid)
 {
 	struct lmac *lmac;
-	u64 cmrx_cfg;
+	u64 cfg;
 
 	lmac = &bgx->lmac[lmacid];
 	if (lmac->check_link) {
@@ -717,9 +722,33 @@ static void bgx_lmac_disable(struct bgx
 		destroy_workqueue(lmac->check_link);
 	}
 
-	cmrx_cfg = bgx_reg_read(bgx, lmacid, BGX_CMRX_CFG);
-	cmrx_cfg &= ~(1 << 15);
-	bgx_reg_write(bgx, lmacid, BGX_CMRX_CFG, cmrx_cfg);
+	/* Disable packet reception */
+	cfg = bgx_reg_read(bgx, lmacid, BGX_CMRX_CFG);
+	cfg &= ~CMR_PKT_RX_EN;
+	bgx_reg_write(bgx, lmacid, BGX_CMRX_CFG, cfg);
+
+	/* Give chance for Rx/Tx FIFO to get drained */
+	bgx_poll_reg(bgx, lmacid, BGX_CMRX_RX_FIFO_LEN, (u64)0x1FFF, true);
+	bgx_poll_reg(bgx, lmacid, BGX_CMRX_TX_FIFO_LEN, (u64)0x3FFF, true);
+
+	/* Disable packet transmission */
+	cfg = bgx_reg_read(bgx, lmacid, BGX_CMRX_CFG);
+	cfg &= ~CMR_PKT_TX_EN;
+	bgx_reg_write(bgx, lmacid, BGX_CMRX_CFG, cfg);
+
+	/* Disable serdes lanes */
+        if (!lmac->is_sgmii)
+                bgx_reg_modify(bgx, lmacid,
+                               BGX_SPUX_CONTROL1, SPU_CTL_LOW_POWER);
+        else
+                bgx_reg_modify(bgx, lmacid,
+                               BGX_GMP_PCS_MRX_CTL, PCS_MRX_CTL_PWR_DN);
+
+	/* Disable LMAC */
+	cfg = bgx_reg_read(bgx, lmacid, BGX_CMRX_CFG);
+	cfg &= ~CMR_EN;
+	bgx_reg_write(bgx, lmacid, BGX_CMRX_CFG, cfg);
+
 	bgx_flush_dmac_addrs(bgx, lmacid);
 
 	if ((bgx->lmac_type != BGX_MODE_XFI) &&
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/cavium/thunder/thunder_bgx.h linux-libre-4.4.107-gnu/drivers/net/ethernet/cavium/thunder/thunder_bgx.h
--- linux-libre-4.4-gnu/drivers/net/ethernet/cavium/thunder/thunder_bgx.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/cavium/thunder/thunder_bgx.h	2017-12-20 04:05:01.000000000 -0500
@@ -41,6 +41,7 @@
 #define BGX_CMRX_RX_STAT10		0xC0
 #define BGX_CMRX_RX_BP_DROP		0xC8
 #define BGX_CMRX_RX_DMAC_CTL		0x0E8
+#define BGX_CMRX_RX_FIFO_LEN		0x108
 #define BGX_CMR_RX_DMACX_CAM		0x200
 #define  RX_DMACX_CAM_EN			BIT_ULL(48)
 #define  RX_DMACX_CAM_LMACID(x)			(x << 49)
@@ -50,6 +51,7 @@
 #define BGX_CMR_CHAN_MSK_AND		0x450
 #define BGX_CMR_BIST_STATUS		0x460
 #define BGX_CMR_RX_LMACS		0x468
+#define BGX_CMRX_TX_FIFO_LEN		0x518
 #define BGX_CMRX_TX_STAT0		0x600
 #define BGX_CMRX_TX_STAT1		0x608
 #define BGX_CMRX_TX_STAT2		0x610
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c linux-libre-4.4.107-gnu/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c	2016-01-10 21:04:33.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c	2017-12-20 11:25:22.000000000 -0500
@@ -2712,10 +2712,14 @@ static int cxgb_up(struct adapter *adap)
 		if (err)
 			goto irq_err;
 	}
+
+	mutex_lock(&uld_mutex);
 	enable_rx(adap);
 	t4_sge_start(adap);
 	t4_intr_enable(adap);
 	adap->flags |= FULL_INIT_DONE;
+	mutex_unlock(&uld_mutex);
+
 	notify_ulds(adap, CXGB4_STATE_UP);
 #if IS_ENABLED(CONFIG_IPV6)
 	update_clip(adap);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/cisco/enic/enic.h linux-libre-4.4.107-gnu/drivers/net/ethernet/cisco/enic/enic.h
--- linux-libre-4.4-gnu/drivers/net/ethernet/cisco/enic/enic.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/cisco/enic/enic.h	2017-12-20 04:05:01.000000000 -0500
@@ -33,7 +33,7 @@
 
 #define DRV_NAME		"enic"
 #define DRV_DESCRIPTION		"Cisco VIC Ethernet NIC Driver"
-#define DRV_VERSION		"2.3.0.12"
+#define DRV_VERSION		"2.3.0.20"
 #define DRV_COPYRIGHT		"Copyright 2008-2013 Cisco Systems, Inc"
 
 #define ENIC_BARS_MAX		6
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/cisco/enic/vnic_dev.c linux-libre-4.4.107-gnu/drivers/net/ethernet/cisco/enic/vnic_dev.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/cisco/enic/vnic_dev.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/cisco/enic/vnic_dev.c	2017-12-20 04:05:01.000000000 -0500
@@ -298,7 +298,8 @@ static int _vnic_dev_cmd2(struct vnic_de
 			  int wait)
 {
 	struct devcmd2_controller *dc2c = vdev->devcmd2;
-	struct devcmd2_result *result = dc2c->result + dc2c->next_result;
+	struct devcmd2_result *result;
+	u8 color;
 	unsigned int i;
 	int delay, err;
 	u32 fetch_index, new_posted;
@@ -336,13 +337,17 @@ static int _vnic_dev_cmd2(struct vnic_de
 	if (dc2c->cmd_ring[posted].flags & DEVCMD2_FNORESULT)
 		return 0;
 
+	result = dc2c->result + dc2c->next_result;
+	color = dc2c->color;
+
+	dc2c->next_result++;
+	if (dc2c->next_result == dc2c->result_size) {
+		dc2c->next_result = 0;
+		dc2c->color = dc2c->color ? 0 : 1;
+	}
+
 	for (delay = 0; delay < wait; delay++) {
-		if (result->color == dc2c->color) {
-			dc2c->next_result++;
-			if (dc2c->next_result == dc2c->result_size) {
-				dc2c->next_result = 0;
-				dc2c->color = dc2c->color ? 0 : 1;
-			}
+		if (result->color == color) {
 			if (result->error) {
 				err = result->error;
 				if (err != ERR_ECMDUNKNOWN ||
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/emulex/benet/be_cmds.c linux-libre-4.4.107-gnu/drivers/net/ethernet/emulex/benet/be_cmds.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/emulex/benet/be_cmds.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/emulex/benet/be_cmds.c	2017-12-20 04:05:01.000000000 -0500
@@ -1052,7 +1052,7 @@ int be_cmd_pmac_add(struct be_adapter *a
 err:
 	spin_unlock_bh(&adapter->mcc_lock);
 
-	 if (status == MCC_STATUS_UNAUTHORIZED_REQUEST)
+	 if (base_status(status) == MCC_STATUS_UNAUTHORIZED_REQUEST)
 		status = -EPERM;
 
 	return status;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/emulex/benet/be_main.c linux-libre-4.4.107-gnu/drivers/net/ethernet/emulex/benet/be_main.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/emulex/benet/be_main.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/emulex/benet/be_main.c	2017-12-20 04:05:01.000000000 -0500
@@ -5260,9 +5260,11 @@ static netdev_features_t be_features_che
 	struct be_adapter *adapter = netdev_priv(dev);
 	u8 l4_hdr = 0;
 
-	/* The code below restricts offload features for some tunneled packets.
+	/* The code below restricts offload features for some tunneled and
+	 * Q-in-Q packets.
 	 * Offload features for normal (non tunnel) packets are unchanged.
 	 */
+	features = vlan_features_check(skb, features);
 	if (!skb->encapsulation ||
 	    !(adapter->flags & BE_FLAGS_VXLAN_OFFLOADS))
 		return features;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/ethoc.c linux-libre-4.4.107-gnu/drivers/net/ethernet/ethoc.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/ethoc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/ethoc.c	2017-12-20 04:05:01.000000000 -0500
@@ -713,6 +713,8 @@ static int ethoc_open(struct net_device
 	if (ret)
 		return ret;
 
+	napi_enable(&priv->napi);
+
 	ethoc_init_ring(priv, dev->mem_start);
 	ethoc_reset(priv);
 
@@ -725,7 +727,6 @@ static int ethoc_open(struct net_device
 	}
 
 	phy_start(priv->phy);
-	napi_enable(&priv->napi);
 
 	if (netif_msg_ifup(priv)) {
 		dev_info(&dev->dev, "I/O: %08lx Memory: %08lx-%08lx\n",
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/fealnx.c linux-libre-4.4.107-gnu/drivers/net/ethernet/fealnx.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/fealnx.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/fealnx.c	2017-12-20 04:05:01.000000000 -0500
@@ -257,8 +257,8 @@ enum rx_desc_status_bits {
 	RXFSD = 0x00000800,	/* first descriptor */
 	RXLSD = 0x00000400,	/* last descriptor */
 	ErrorSummary = 0x80,	/* error summary */
-	RUNT = 0x40,		/* runt packet received */
-	LONG = 0x20,		/* long packet received */
+	RUNTPKT = 0x40,		/* runt packet received */
+	LONGPKT = 0x20,		/* long packet received */
 	FAE = 0x10,		/* frame align error */
 	CRC = 0x08,		/* crc error */
 	RXER = 0x04,		/* receive error */
@@ -1633,7 +1633,7 @@ static int netdev_rx(struct net_device *
 					       dev->name, rx_status);
 
 				dev->stats.rx_errors++;	/* end of a packet. */
-				if (rx_status & (LONG | RUNT))
+				if (rx_status & (LONGPKT | RUNTPKT))
 					dev->stats.rx_length_errors++;
 				if (rx_status & RXER)
 					dev->stats.rx_frame_errors++;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/freescale/fec_main.c linux-libre-4.4.107-gnu/drivers/net/ethernet/freescale/fec_main.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/freescale/fec_main.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/freescale/fec_main.c	2017-12-20 04:05:01.000000000 -0500
@@ -944,11 +944,11 @@ fec_restart(struct net_device *ndev)
 	 * enet-mac reset will reset mac address registers too,
 	 * so need to reconfigure it.
 	 */
-	if (fep->quirks & FEC_QUIRK_ENET_MAC) {
-		memcpy(&temp_mac, ndev->dev_addr, ETH_ALEN);
-		writel(cpu_to_be32(temp_mac[0]), fep->hwp + FEC_ADDR_LOW);
-		writel(cpu_to_be32(temp_mac[1]), fep->hwp + FEC_ADDR_HIGH);
-	}
+	memcpy(&temp_mac, ndev->dev_addr, ETH_ALEN);
+	writel((__force u32)cpu_to_be32(temp_mac[0]),
+	       fep->hwp + FEC_ADDR_LOW);
+	writel((__force u32)cpu_to_be32(temp_mac[1]),
+	       fep->hwp + FEC_ADDR_HIGH);
 
 	/* Clear any outstanding interrupt. */
 	writel(0xffffffff, fep->hwp + FEC_IEVENT);
@@ -1557,9 +1557,15 @@ fec_enet_rx(struct net_device *ndev, int
 	struct fec_enet_private *fep = netdev_priv(ndev);
 
 	for_each_set_bit(queue_id, &fep->work_rx, FEC_ENET_MAX_RX_QS) {
-		clear_bit(queue_id, &fep->work_rx);
-		pkt_received += fec_enet_rx_queue(ndev,
+		int ret;
+
+		ret = fec_enet_rx_queue(ndev,
 					budget - pkt_received, queue_id);
+
+		if (ret < budget - pkt_received)
+			clear_bit(queue_id, &fep->work_rx);
+
+		pkt_received += ret;
 	}
 	return pkt_received;
 }
@@ -2962,6 +2968,7 @@ static void set_multicast_list(struct ne
 	struct netdev_hw_addr *ha;
 	unsigned int i, bit, data, crc, tmp;
 	unsigned char hash;
+	unsigned int hash_high = 0, hash_low = 0;
 
 	if (ndev->flags & IFF_PROMISC) {
 		tmp = readl(fep->hwp + FEC_R_CNTRL);
@@ -2984,11 +2991,7 @@ static void set_multicast_list(struct ne
 		return;
 	}
 
-	/* Clear filter and add the addresses in hash register
-	 */
-	writel(0, fep->hwp + FEC_GRP_HASH_TABLE_HIGH);
-	writel(0, fep->hwp + FEC_GRP_HASH_TABLE_LOW);
-
+	/* Add the addresses in hash register */
 	netdev_for_each_mc_addr(ha, ndev) {
 		/* calculate crc32 value of mac address */
 		crc = 0xffffffff;
@@ -3006,16 +3009,14 @@ static void set_multicast_list(struct ne
 		 */
 		hash = (crc >> (32 - HASH_BITS)) & 0x3f;
 
-		if (hash > 31) {
-			tmp = readl(fep->hwp + FEC_GRP_HASH_TABLE_HIGH);
-			tmp |= 1 << (hash - 32);
-			writel(tmp, fep->hwp + FEC_GRP_HASH_TABLE_HIGH);
-		} else {
-			tmp = readl(fep->hwp + FEC_GRP_HASH_TABLE_LOW);
-			tmp |= 1 << hash;
-			writel(tmp, fep->hwp + FEC_GRP_HASH_TABLE_LOW);
-		}
+		if (hash > 31)
+			hash_high |= 1 << (hash - 32);
+		else
+			hash_low |= 1 << hash;
 	}
+
+	writel(hash_high, fep->hwp + FEC_GRP_HASH_TABLE_HIGH);
+	writel(hash_low, fep->hwp + FEC_GRP_HASH_TABLE_LOW);
 }
 
 /* Set a MAC change in hardware. */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/freescale/gianfar.c linux-libre-4.4.107-gnu/drivers/net/ethernet/freescale/gianfar.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/freescale/gianfar.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/freescale/gianfar.c	2017-12-20 04:05:01.000000000 -0500
@@ -1999,8 +1999,8 @@ static void free_skb_rx_queue(struct gfa
 		if (!rxb->page)
 			continue;
 
-		dma_unmap_single(rx_queue->dev, rxb->dma,
-				 PAGE_SIZE, DMA_FROM_DEVICE);
+		dma_unmap_page(rx_queue->dev, rxb->dma,
+			       PAGE_SIZE, DMA_FROM_DEVICE);
 		__free_page(rxb->page);
 
 		rxb->page = NULL;
@@ -2939,7 +2939,7 @@ static bool gfar_add_rx_frag(struct gfar
 				size, GFAR_RXB_TRUESIZE);
 
 	/* try reuse page */
-	if (unlikely(page_count(page) != 1))
+	if (unlikely(page_count(page) != 1 || page_is_pfmemalloc(page)))
 		return false;
 
 	/* change offset to the other half */
@@ -3676,7 +3676,7 @@ static noinline void gfar_update_link_st
 		u32 tempval1 = gfar_read(&regs->maccfg1);
 		u32 tempval = gfar_read(&regs->maccfg2);
 		u32 ecntrl = gfar_read(&regs->ecntrl);
-		u32 tx_flow_oldval = (tempval & MACCFG1_TX_FLOW);
+		u32 tx_flow_oldval = (tempval1 & MACCFG1_TX_FLOW);
 
 		if (phydev->duplex != priv->oldduplex) {
 			if (!(phydev->duplex))
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/hisilicon/hns/hns_dsaf_reg.h linux-libre-4.4.107-gnu/drivers/net/ethernet/hisilicon/hns/hns_dsaf_reg.h
--- linux-libre-4.4-gnu/drivers/net/ethernet/hisilicon/hns/hns_dsaf_reg.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/hisilicon/hns/hns_dsaf_reg.h	2017-12-20 04:05:01.000000000 -0500
@@ -900,9 +900,7 @@
 
 static inline void dsaf_write_reg(void __iomem *base, u32 reg, u32 value)
 {
-	u8 __iomem *reg_addr = ACCESS_ONCE(base);
-
-	writel(value, reg_addr + reg);
+	writel(value, base + reg);
 }
 
 #define dsaf_write_dev(a, reg, value) \
@@ -910,9 +908,7 @@ static inline void dsaf_write_reg(void _
 
 static inline u32 dsaf_read_reg(u8 __iomem *base, u32 reg)
 {
-	u8 __iomem *reg_addr = ACCESS_ONCE(base);
-
-	return readl(reg_addr + reg);
+	return readl(base + reg);
 }
 
 #define dsaf_read_dev(a, reg) \
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/hisilicon/hns/hns_enet.c linux-libre-4.4.107-gnu/drivers/net/ethernet/hisilicon/hns/hns_enet.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/hisilicon/hns/hns_enet.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/hisilicon/hns/hns_enet.c	2017-12-20 04:05:01.000000000 -0500
@@ -105,8 +105,8 @@ int hns_nic_net_xmit_hw(struct net_devic
 			struct hns_nic_ring_data *ring_data)
 {
 	struct hns_nic_priv *priv = netdev_priv(ndev);
-	struct device *dev = priv->dev;
 	struct hnae_ring *ring = ring_data->ring;
+	struct device *dev = ring_to_dev(ring);
 	struct netdev_queue *dev_queue;
 	struct skb_frag_struct *frag;
 	int buf_num;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/ibm/emac/mal.c linux-libre-4.4.107-gnu/drivers/net/ethernet/ibm/emac/mal.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/ibm/emac/mal.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/ibm/emac/mal.c	2017-12-20 04:05:01.000000000 -0500
@@ -402,7 +402,7 @@ static int mal_poll(struct napi_struct *
 	unsigned long flags;
 
 	MAL_DBG2(mal, "poll(%d)" NL, budget);
- again:
+
 	/* Process TX skbs */
 	list_for_each(l, &mal->poll_list) {
 		struct mal_commac *mc =
@@ -451,7 +451,6 @@ static int mal_poll(struct napi_struct *
 			spin_lock_irqsave(&mal->lock, flags);
 			mal_disable_eob_irq(mal);
 			spin_unlock_irqrestore(&mal->lock, flags);
-			goto again;
 		}
 		mc->ops->poll_tx(mc->dev);
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/ibm/ibmveth.c linux-libre-4.4.107-gnu/drivers/net/ethernet/ibm/ibmveth.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/ibm/ibmveth.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/ibm/ibmveth.c	2017-12-20 04:05:01.000000000 -0500
@@ -58,7 +58,7 @@ static struct kobj_type ktype_veth_pool;
 
 static const char ibmveth_driver_name[] = "ibmveth";
 static const char ibmveth_driver_string[] = "IBM Power Virtual Ethernet Driver";
-#define ibmveth_driver_version "1.05"
+#define ibmveth_driver_version "1.06"
 
 MODULE_AUTHOR("Santiago Leon <santil@linux.vnet.ibm.com>");
 MODULE_DESCRIPTION("IBM Power Virtual Ethernet Driver");
@@ -137,6 +137,11 @@ static inline int ibmveth_rxq_frame_offs
 	return ibmveth_rxq_flags(adapter) & IBMVETH_RXQ_OFF_MASK;
 }
 
+static inline int ibmveth_rxq_large_packet(struct ibmveth_adapter *adapter)
+{
+	return ibmveth_rxq_flags(adapter) & IBMVETH_RXQ_LRG_PKT;
+}
+
 static inline int ibmveth_rxq_frame_length(struct ibmveth_adapter *adapter)
 {
 	return be32_to_cpu(adapter->rx_queue.queue_addr[adapter->rx_queue.index].length);
@@ -1172,6 +1177,53 @@ map_failed:
 	goto retry_bounce;
 }
 
+static void ibmveth_rx_mss_helper(struct sk_buff *skb, u16 mss, int lrg_pkt)
+{
+	struct tcphdr *tcph;
+	int offset = 0;
+	int hdr_len;
+
+	/* only TCP packets will be aggregated */
+	if (skb->protocol == htons(ETH_P_IP)) {
+		struct iphdr *iph = (struct iphdr *)skb->data;
+
+		if (iph->protocol == IPPROTO_TCP) {
+			offset = iph->ihl * 4;
+			skb_shinfo(skb)->gso_type = SKB_GSO_TCPV4;
+		} else {
+			return;
+		}
+	} else if (skb->protocol == htons(ETH_P_IPV6)) {
+		struct ipv6hdr *iph6 = (struct ipv6hdr *)skb->data;
+
+		if (iph6->nexthdr == IPPROTO_TCP) {
+			offset = sizeof(struct ipv6hdr);
+			skb_shinfo(skb)->gso_type = SKB_GSO_TCPV6;
+		} else {
+			return;
+		}
+	} else {
+		return;
+	}
+	/* if mss is not set through Large Packet bit/mss in rx buffer,
+	 * expect that the mss will be written to the tcp header checksum.
+	 */
+	tcph = (struct tcphdr *)(skb->data + offset);
+	if (lrg_pkt) {
+		skb_shinfo(skb)->gso_size = mss;
+	} else if (offset) {
+		skb_shinfo(skb)->gso_size = ntohs(tcph->check);
+		tcph->check = 0;
+	}
+
+	if (skb_shinfo(skb)->gso_size) {
+		hdr_len = offset + tcph->doff * 4;
+		skb_shinfo(skb)->gso_segs =
+				DIV_ROUND_UP(skb->len - hdr_len,
+					     skb_shinfo(skb)->gso_size);
+	}
+}
+
 static int ibmveth_poll(struct napi_struct *napi, int budget)
 {
 	struct ibmveth_adapter *adapter =
@@ -1180,6 +1232,7 @@ static int ibmveth_poll(struct napi_stru
 	int frames_processed = 0;
 	unsigned long lpar_rc;
 	struct iphdr *iph;
+	u16 mss = 0;
 
 restart_poll:
 	while (frames_processed < budget) {
@@ -1197,9 +1250,21 @@ restart_poll:
 			int length = ibmveth_rxq_frame_length(adapter);
 			int offset = ibmveth_rxq_frame_offset(adapter);
 			int csum_good = ibmveth_rxq_csum_good(adapter);
+			int lrg_pkt = ibmveth_rxq_large_packet(adapter);
 
 			skb = ibmveth_rxq_get_buffer(adapter);
 
+			/* if the large packet bit is set in the rx queue
+			 * descriptor, the mss will be written by PHYP eight
+			 * bytes from the start of the rx buffer, which is
+			 * skb->data at this stage
+			 */
+			if (lrg_pkt) {
+				__be64 *rxmss = (__be64 *)(skb->data + 8);
+
+				mss = (u16)be64_to_cpu(*rxmss);
+			}
+
 			new_skb = NULL;
 			if (length < rx_copybreak)
 				new_skb = netdev_alloc_skb(netdev, length);
@@ -1233,11 +1298,15 @@ restart_poll:
 					if (iph->check == 0xffff) {
 						iph->check = 0;
 						iph->check = ip_fast_csum((unsigned char *)iph, iph->ihl);
-						adapter->rx_large_packets++;
 					}
 				}
 			}
 
+			if (length > netdev->mtu + ETH_HLEN) {
+				ibmveth_rx_mss_helper(skb, mss, lrg_pkt);
+				adapter->rx_large_packets++;
+			}
+
 			napi_gro_receive(napi, skb);	/* send it up */
 
 			netdev->stats.rx_packets++;
@@ -1533,8 +1602,11 @@ static int ibmveth_probe(struct vio_dev
 	netdev->netdev_ops = &ibmveth_netdev_ops;
 	netdev->ethtool_ops = &netdev_ethtool_ops;
 	SET_NETDEV_DEV(netdev, &dev->dev);
-	netdev->hw_features = NETIF_F_SG | NETIF_F_RXCSUM |
-		NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM;
+	netdev->hw_features = NETIF_F_SG;
+	if (vio_get_attribute(dev, "ibm,illan-options", NULL) != NULL) {
+		netdev->hw_features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
+				       NETIF_F_RXCSUM;
+	}
 
 	netdev->features |= netdev->hw_features;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/ibm/ibmveth.h linux-libre-4.4.107-gnu/drivers/net/ethernet/ibm/ibmveth.h
--- linux-libre-4.4-gnu/drivers/net/ethernet/ibm/ibmveth.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/ibm/ibmveth.h	2017-12-20 04:05:01.000000000 -0500
@@ -209,6 +209,7 @@ struct ibmveth_rx_q_entry {
 #define IBMVETH_RXQ_TOGGLE		0x80000000
 #define IBMVETH_RXQ_TOGGLE_SHIFT	31
 #define IBMVETH_RXQ_VALID		0x40000000
+#define IBMVETH_RXQ_LRG_PKT		0x04000000
 #define IBMVETH_RXQ_NO_CSUM		0x02000000
 #define IBMVETH_RXQ_CSUM_GOOD		0x01000000
 #define IBMVETH_RXQ_OFF_MASK		0x0000FFFF
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/intel/e1000/e1000.h linux-libre-4.4.107-gnu/drivers/net/ethernet/intel/e1000/e1000.h
--- linux-libre-4.4-gnu/drivers/net/ethernet/intel/e1000/e1000.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/intel/e1000/e1000.h	2017-12-20 04:05:01.000000000 -0500
@@ -213,8 +213,11 @@ struct e1000_rx_ring {
 };
 
 #define E1000_DESC_UNUSED(R)						\
-	((((R)->next_to_clean > (R)->next_to_use)			\
-	  ? 0 : (R)->count) + (R)->next_to_clean - (R)->next_to_use - 1)
+({									\
+	unsigned int clean = smp_load_acquire(&(R)->next_to_clean);	\
+	unsigned int use = READ_ONCE((R)->next_to_use);			\
+	(clean > use ? 0 : (R)->count) + clean - use - 1;		\
+})
 
 #define E1000_RX_DESC_EXT(R, i)						\
 	(&(((union e1000_rx_desc_extended *)((R).desc))[i]))
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/intel/e1000/e1000_main.c linux-libre-4.4.107-gnu/drivers/net/ethernet/intel/e1000/e1000_main.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/intel/e1000/e1000_main.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/intel/e1000/e1000_main.c	2017-12-20 04:05:01.000000000 -0500
@@ -3876,7 +3876,10 @@ static bool e1000_clean_tx_irq(struct e1
 		eop_desc = E1000_TX_DESC(*tx_ring, eop);
 	}
 
-	tx_ring->next_to_clean = i;
+	/* Synchronize with E1000_DESC_UNUSED called from e1000_xmit_frame,
+	 * which will reuse the cleaned buffers.
+	 */
+	smp_store_release(&tx_ring->next_to_clean, i);
 
 	netdev_completed_queue(netdev, pkts_compl, bytes_compl);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/intel/e1000e/mac.c linux-libre-4.4.107-gnu/drivers/net/ethernet/intel/e1000e/mac.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/intel/e1000e/mac.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/intel/e1000e/mac.c	2017-12-20 04:05:01.000000000 -0500
@@ -410,6 +410,9 @@ void e1000e_clear_hw_cntrs_base(struct e
  *  Checks to see of the link status of the hardware has changed.  If a
  *  change in link status has been detected, then we read the PHY registers
  *  to get the current speed/duplex if link exists.
+ *
+ *  Returns a negative error code (-E1000_ERR_*) or 0 (link down) or 1 (link
+ *  up).
  **/
 s32 e1000e_check_for_copper_link(struct e1000_hw *hw)
 {
@@ -423,7 +426,7 @@ s32 e1000e_check_for_copper_link(struct
 	 * Change or Rx Sequence Error interrupt.
 	 */
 	if (!mac->get_link_status)
-		return 0;
+		return 1;
 
 	/* First we want to see if the MII Status Register reports
 	 * link.  If so, then we want to get the current speed/duplex
@@ -461,10 +464,12 @@ s32 e1000e_check_for_copper_link(struct
 	 * different link partner.
 	 */
 	ret_val = e1000e_config_fc_after_link_up(hw);
-	if (ret_val)
+	if (ret_val) {
 		e_dbg("Error configuring flow control\n");
+		return ret_val;
+	}
 
-	return ret_val;
+	return 1;
 }
 
 /**
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/intel/e1000e/netdev.c linux-libre-4.4.107-gnu/drivers/net/ethernet/intel/e1000e/netdev.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/intel/e1000e/netdev.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/intel/e1000e/netdev.c	2017-12-20 04:05:01.000000000 -0500
@@ -1959,8 +1959,10 @@ static irqreturn_t e1000_intr_msix_rx(in
 	 * previous interrupt.
 	 */
 	if (rx_ring->set_itr) {
-		writel(1000000000 / (rx_ring->itr_val * 256),
-		       rx_ring->itr_register);
+		u32 itr = rx_ring->itr_val ?
+			  1000000000 / (rx_ring->itr_val * 256) : 0;
+
+		writel(itr, rx_ring->itr_register);
 		rx_ring->set_itr = 0;
 	}
 
@@ -5015,7 +5017,7 @@ static bool e1000e_has_link(struct e1000
 	case e1000_media_type_copper:
 		if (hw->mac.get_link_status) {
 			ret_val = hw->mac.ops.check_for_link(hw);
-			link_active = !hw->mac.get_link_status;
+			link_active = ret_val > 0;
 		} else {
 			link_active = true;
 		}
@@ -5033,7 +5035,7 @@ static bool e1000e_has_link(struct e1000
 		break;
 	}
 
-	if ((ret_val == E1000_ERR_PHY) && (hw->phy.type == e1000_phy_igp_3) &&
+	if ((ret_val == -E1000_ERR_PHY) && (hw->phy.type == e1000_phy_igp_3) &&
 	    (er32(CTRL) & E1000_PHY_CTRL_GBE_DISABLE)) {
 		/* See e1000_kmrn_lock_loss_workaround_ich8lan() */
 		e_info("Gigabit has been disabled, downgrading speed\n");
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/intel/e1000e/phy.c linux-libre-4.4.107-gnu/drivers/net/ethernet/intel/e1000e/phy.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/intel/e1000e/phy.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/intel/e1000e/phy.c	2017-12-20 04:05:01.000000000 -0500
@@ -1744,6 +1744,7 @@ s32 e1000e_phy_has_link_generic(struct e
 	s32 ret_val = 0;
 	u16 i, phy_status;
 
+	*success = false;
 	for (i = 0; i < iterations; i++) {
 		/* Some PHYs require the MII_BMSR register to be read
 		 * twice due to the link bit being sticky.  No harm doing
@@ -1763,16 +1764,16 @@ s32 e1000e_phy_has_link_generic(struct e
 		ret_val = e1e_rphy(hw, MII_BMSR, &phy_status);
 		if (ret_val)
 			break;
-		if (phy_status & BMSR_LSTATUS)
+		if (phy_status & BMSR_LSTATUS) {
+			*success = true;
 			break;
+		}
 		if (usec_interval >= 1000)
 			msleep(usec_interval / 1000);
 		else
 			udelay(usec_interval);
 	}
 
-	*success = (i < iterations);
-
 	return ret_val;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/intel/fm10k/fm10k.h linux-libre-4.4.107-gnu/drivers/net/ethernet/intel/fm10k/fm10k.h
--- linux-libre-4.4-gnu/drivers/net/ethernet/intel/fm10k/fm10k.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/intel/fm10k/fm10k.h	2017-12-20 04:05:01.000000000 -0500
@@ -33,7 +33,7 @@
 #include "fm10k_pf.h"
 #include "fm10k_vf.h"
 
-#define FM10K_MAX_JUMBO_FRAME_SIZE	15358	/* Maximum supported size 15K */
+#define FM10K_MAX_JUMBO_FRAME_SIZE	15342	/* Maximum supported size 15K */
 
 #define MAX_QUEUES	FM10K_MAX_QUEUES_PF
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/intel/fm10k/fm10k_main.c linux-libre-4.4.107-gnu/drivers/net/ethernet/intel/fm10k/fm10k_main.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/intel/fm10k/fm10k_main.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/intel/fm10k/fm10k_main.c	2017-12-20 04:05:01.000000000 -0500
@@ -1226,7 +1226,7 @@ static bool fm10k_clean_tx_irq(struct fm
 			break;
 
 		/* prevent any other reads prior to eop_desc */
-		read_barrier_depends();
+		smp_rmb();
 
 		/* if DD is not set pending work has not been completed */
 		if (!(eop_desc->flags & FM10K_TXD_FLAG_DONE))
@@ -1428,6 +1428,10 @@ static int fm10k_poll(struct napi_struct
 	fm10k_for_each_ring(ring, q_vector->tx)
 		clean_complete &= fm10k_clean_tx_irq(q_vector, ring);
 
+	/* Handle case where we are called by netpoll with a budget of 0 */
+	if (budget <= 0)
+		return budget;
+
 	/* attempt to distribute budget to each queue fairly, but don't
 	 * allow the budget to go below 1 because we'll exit polling
 	 */
@@ -1966,8 +1970,10 @@ int fm10k_init_queueing_scheme(struct fm
 
 	/* Allocate memory for queues */
 	err = fm10k_alloc_q_vectors(interface);
-	if (err)
+	if (err) {
+		fm10k_reset_msix_capability(interface);
 		return err;
+	}
 
 	/* Map rings to devices, and map devices to physical queues */
 	fm10k_assign_rings(interface);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/intel/fm10k/fm10k_mbx.c linux-libre-4.4.107-gnu/drivers/net/ethernet/intel/fm10k/fm10k_mbx.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/intel/fm10k/fm10k_mbx.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/intel/fm10k/fm10k_mbx.c	2017-12-20 04:05:01.000000000 -0500
@@ -2002,9 +2002,10 @@ static void fm10k_sm_mbx_create_reply(st
  *  function can also be used to respond to an error as the connection
  *  resetting would also be a means of dealing with errors.
  **/
-static void fm10k_sm_mbx_process_reset(struct fm10k_hw *hw,
-				       struct fm10k_mbx_info *mbx)
+static s32 fm10k_sm_mbx_process_reset(struct fm10k_hw *hw,
+				      struct fm10k_mbx_info *mbx)
 {
+	s32 err = 0;
 	const enum fm10k_mbx_state state = mbx->state;
 
 	switch (state) {
@@ -2017,6 +2018,7 @@ static void fm10k_sm_mbx_process_reset(s
 	case FM10K_STATE_OPEN:
 		/* flush any incomplete work */
 		fm10k_sm_mbx_connect_reset(mbx);
+		err = FM10K_ERR_RESET_REQUESTED;
 		break;
 	case FM10K_STATE_CONNECT:
 		/* Update remote value to match local value */
@@ -2026,6 +2028,8 @@ static void fm10k_sm_mbx_process_reset(s
 	}
 
 	fm10k_sm_mbx_create_reply(hw, mbx, mbx->tail);
+
+	return err;
 }
 
 /**
@@ -2106,7 +2110,7 @@ static s32 fm10k_sm_mbx_process(struct f
 
 	switch (FM10K_MSG_HDR_FIELD_GET(mbx->mbx_hdr, SM_VER)) {
 	case 0:
-		fm10k_sm_mbx_process_reset(hw, mbx);
+		err = fm10k_sm_mbx_process_reset(hw, mbx);
 		break;
 	case FM10K_SM_MBX_VERSION:
 		err = fm10k_sm_mbx_process_version_1(hw, mbx);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/intel/fm10k/fm10k_pci.c linux-libre-4.4.107-gnu/drivers/net/ethernet/intel/fm10k/fm10k_pci.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/intel/fm10k/fm10k_pci.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/intel/fm10k/fm10k_pci.c	2017-12-20 04:05:01.000000000 -0500
@@ -159,13 +159,30 @@ static void fm10k_reinit(struct fm10k_in
 
 	fm10k_mbx_free_irq(interface);
 
+	/* free interrupts */
+	fm10k_clear_queueing_scheme(interface);
+
 	/* delay any future reset requests */
 	interface->last_reset = jiffies + (10 * HZ);
 
 	/* reset and initialize the hardware so it is in a known state */
-	err = hw->mac.ops.reset_hw(hw) ? : hw->mac.ops.init_hw(hw);
-	if (err)
+	err = hw->mac.ops.reset_hw(hw);
+	if (err) {
+		dev_err(&interface->pdev->dev, "reset_hw failed: %d\n", err);
+		goto reinit_err;
+	}
+
+	err = hw->mac.ops.init_hw(hw);
+	if (err) {
 		dev_err(&interface->pdev->dev, "init_hw failed: %d\n", err);
+		goto reinit_err;
+	}
+
+	err = fm10k_init_queueing_scheme(interface);
+	if (err) {
+		dev_err(&interface->pdev->dev, "init_queueing_scheme failed: %d\n", err);
+		goto reinit_err;
+	}
 
 	/* reassociate interrupts */
 	fm10k_mbx_request_irq(interface);
@@ -193,6 +210,10 @@ static void fm10k_reinit(struct fm10k_in
 
 	fm10k_iov_resume(interface->pdev);
 
+reinit_err:
+	if (err)
+		netif_device_detach(netdev);
+
 	rtnl_unlock();
 
 	clear_bit(__FM10K_RESETTING, &interface->state);
@@ -1051,6 +1072,7 @@ static irqreturn_t fm10k_msix_mbx_pf(int
 	struct fm10k_hw *hw = &interface->hw;
 	struct fm10k_mbx_info *mbx = &hw->mbx;
 	u32 eicr;
+	s32 err = 0;
 
 	/* unmask any set bits related to this interrupt */
 	eicr = fm10k_read_reg(hw, FM10K_EICR);
@@ -1066,12 +1088,15 @@ static irqreturn_t fm10k_msix_mbx_pf(int
 
 	/* service mailboxes */
 	if (fm10k_mbx_trylock(interface)) {
-		mbx->ops.process(hw, mbx);
+		err = mbx->ops.process(hw, mbx);
 		/* handle VFLRE events */
 		fm10k_iov_event(interface);
 		fm10k_mbx_unlock(interface);
 	}
 
+	if (err == FM10K_ERR_RESET_REQUESTED)
+		interface->flags |= FM10K_FLAG_RESET_REQUESTED;
+
 	/* if switch toggled state we should reset GLORTs */
 	if (eicr & FM10K_EICR_SWITCHNOTREADY) {
 		/* force link down for at least 4 seconds */
@@ -1101,6 +1126,10 @@ void fm10k_mbx_free_irq(struct fm10k_int
 	struct fm10k_hw *hw = &interface->hw;
 	int itr_reg;
 
+	/* no mailbox IRQ to free if MSI-X is not enabled */
+	if (!interface->msix_entries)
+		return;
+
 	/* disconnect the mailbox */
 	hw->mbx.ops.disconnect(hw, &hw->mbx);
 
@@ -1423,10 +1452,15 @@ int fm10k_mbx_request_irq(struct fm10k_i
 		err = fm10k_mbx_request_irq_pf(interface);
 	else
 		err = fm10k_mbx_request_irq_vf(interface);
+	if (err)
+		return err;
 
 	/* connect mailbox */
-	if (!err)
-		err = hw->mbx.ops.connect(hw, &hw->mbx);
+	err = hw->mbx.ops.connect(hw, &hw->mbx);
+
+	/* if the mailbox failed to connect, then free IRQ */
+	if (err)
+		fm10k_mbx_free_irq(interface);
 
 	return err;
 }
@@ -1684,7 +1718,13 @@ static int fm10k_sw_init(struct fm10k_in
 	interface->last_reset = jiffies + (10 * HZ);
 
 	/* reset and initialize the hardware so it is in a known state */
-	err = hw->mac.ops.reset_hw(hw) ? : hw->mac.ops.init_hw(hw);
+	err = hw->mac.ops.reset_hw(hw);
+	if (err) {
+		dev_err(&pdev->dev, "reset_hw failed: %d\n", err);
+		return err;
+	}
+
+	err = hw->mac.ops.init_hw(hw);
 	if (err) {
 		dev_err(&pdev->dev, "init_hw failed: %d\n", err);
 		return err;
@@ -2071,8 +2111,10 @@ static int fm10k_resume(struct pci_dev *
 
 	/* reset hardware to known state */
 	err = hw->mac.ops.init_hw(&interface->hw);
-	if (err)
+	if (err) {
+		dev_err(&pdev->dev, "init_hw failed: %d\n", err);
 		return err;
+	}
 
 	/* reset statistics starting values */
 	hw->mac.ops.rebind_hw_stats(hw, &interface->stats);
@@ -2185,6 +2227,9 @@ static pci_ers_result_t fm10k_io_error_d
 	if (netif_running(netdev))
 		fm10k_close(netdev);
 
+	/* free interrupts */
+	fm10k_clear_queueing_scheme(interface);
+
 	fm10k_mbx_free_irq(interface);
 
 	pci_disable_device(pdev);
@@ -2248,11 +2293,21 @@ static void fm10k_io_resume(struct pci_d
 	int err = 0;
 
 	/* reset hardware to known state */
-	hw->mac.ops.init_hw(&interface->hw);
+	err = hw->mac.ops.init_hw(&interface->hw);
+	if (err) {
+		dev_err(&pdev->dev, "init_hw failed: %d\n", err);
+		return;
+	}
 
 	/* reset statistics starting values */
 	hw->mac.ops.rebind_hw_stats(hw, &interface->stats);
 
+	err = fm10k_init_queueing_scheme(interface);
+	if (err) {
+		dev_err(&interface->pdev->dev, "init_queueing_scheme failed: %d\n", err);
+		return;
+	}
+
 	/* reassociate interrupts */
 	fm10k_mbx_request_irq(interface);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/intel/fm10k/fm10k_type.h linux-libre-4.4.107-gnu/drivers/net/ethernet/intel/fm10k/fm10k_type.h
--- linux-libre-4.4-gnu/drivers/net/ethernet/intel/fm10k/fm10k_type.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/intel/fm10k/fm10k_type.h	2017-12-20 04:05:01.000000000 -0500
@@ -77,6 +77,7 @@ struct fm10k_hw;
 #define FM10K_PCIE_SRIOV_CTRL_VFARI		0x10
 
 #define FM10K_ERR_PARAM				-2
+#define FM10K_ERR_NO_RESOURCES			-3
 #define FM10K_ERR_REQUESTS_PENDING		-4
 #define FM10K_ERR_RESET_REQUESTED		-5
 #define FM10K_ERR_DMA_PENDING			-6
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/intel/fm10k/fm10k_vf.c linux-libre-4.4.107-gnu/drivers/net/ethernet/intel/fm10k/fm10k_vf.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/intel/fm10k/fm10k_vf.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/intel/fm10k/fm10k_vf.c	2017-12-20 04:05:01.000000000 -0500
@@ -103,7 +103,14 @@ static s32 fm10k_init_hw_vf(struct fm10k
 	s32 err;
 	u16 i;
 
-	/* assume we always have at least 1 queue */
+	/* verify we have at least 1 queue */
+	if (!~fm10k_read_reg(hw, FM10K_TXQCTL(0)) ||
+	    !~fm10k_read_reg(hw, FM10K_RXQCTL(0))) {
+		err = FM10K_ERR_NO_RESOURCES;
+		goto reset_max_queues;
+	}
+
+	/* determine how many queues we have */
 	for (i = 1; tqdloc0 && (i < FM10K_MAX_QUEUES_POOL); i++) {
 		/* verify the Descriptor cache offsets are increasing */
 		tqdloc = ~fm10k_read_reg(hw, FM10K_TQDLOC(i));
@@ -119,7 +126,7 @@ static s32 fm10k_init_hw_vf(struct fm10k
 	/* shut down queues we own and reset DMA configuration */
 	err = fm10k_disable_queues_generic(hw, i);
 	if (err)
-		return err;
+		goto reset_max_queues;
 
 	/* record maximum queue count */
 	hw->mac.max_queues = i;
@@ -129,6 +136,11 @@ static s32 fm10k_init_hw_vf(struct fm10k
 			       FM10K_TXQCTL_VID_MASK) >> FM10K_TXQCTL_VID_SHIFT;
 
 	return 0;
+
+reset_max_queues:
+	hw->mac.max_queues = 0;
+
+	return err;
 }
 
 /* This structure defines the attibutes to be parsed below */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/intel/i40e/i40e_common.c linux-libre-4.4.107-gnu/drivers/net/ethernet/intel/i40e/i40e_common.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/intel/i40e/i40e_common.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/intel/i40e/i40e_common.c	2017-12-20 04:05:01.000000000 -0500
@@ -302,13 +302,15 @@ void i40e_debug_aq(struct i40e_hw *hw, e
 		   void *buffer, u16 buf_len)
 {
 	struct i40e_aq_desc *aq_desc = (struct i40e_aq_desc *)desc;
-	u16 len = le16_to_cpu(aq_desc->datalen);
+	u16 len;
 	u8 *buf = (u8 *)buffer;
 	u16 i = 0;
 
 	if ((!(mask & hw->debug_mask)) || (desc == NULL))
 		return;
 
+	len = le16_to_cpu(aq_desc->datalen);
+
 	i40e_debug(hw, mask,
 		   "AQ CMD: opcode 0x%04X, flags 0x%04X, datalen 0x%04X, retval 0x%04X\n",
 		   le16_to_cpu(aq_desc->opcode),
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/intel/i40e/i40e_ethtool.c linux-libre-4.4.107-gnu/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/intel/i40e/i40e_ethtool.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/intel/i40e/i40e_ethtool.c	2017-12-20 04:05:01.000000000 -0500
@@ -2164,8 +2164,7 @@ static int i40e_set_rss_hash_opt(struct
 	case TCP_V4_FLOW:
 		switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
 		case 0:
-			hena &= ~BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_TCP);
-			break;
+			return -EINVAL;
 		case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
 			hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_TCP);
 			break;
@@ -2176,8 +2175,7 @@ static int i40e_set_rss_hash_opt(struct
 	case TCP_V6_FLOW:
 		switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
 		case 0:
-			hena &= ~BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_TCP);
-			break;
+			return -EINVAL;
 		case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
 			hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_TCP);
 			break;
@@ -2188,9 +2186,7 @@ static int i40e_set_rss_hash_opt(struct
 	case UDP_V4_FLOW:
 		switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
 		case 0:
-			hena &= ~(BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_UDP) |
-				  BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4));
-			break;
+			return -EINVAL;
 		case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
 			hena |= (BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_UDP) |
 				 BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4));
@@ -2202,9 +2198,7 @@ static int i40e_set_rss_hash_opt(struct
 	case UDP_V6_FLOW:
 		switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
 		case 0:
-			hena &= ~(BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_UDP) |
-				  BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6));
-			break;
+			return -EINVAL;
 		case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
 			hena |= (BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_UDP) |
 				 BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6));
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/intel/i40e/i40e.h linux-libre-4.4.107-gnu/drivers/net/ethernet/intel/i40e/i40e.h
--- linux-libre-4.4-gnu/drivers/net/ethernet/intel/i40e/i40e.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/intel/i40e/i40e.h	2017-12-20 04:05:01.000000000 -0500
@@ -767,6 +767,8 @@ int i40e_vsi_add_vlan(struct i40e_vsi *v
 int i40e_vsi_kill_vlan(struct i40e_vsi *vsi, s16 vid);
 struct i40e_mac_filter *i40e_put_mac_in_vlan(struct i40e_vsi *vsi, u8 *macaddr,
 					     bool is_vf, bool is_netdev);
+int i40e_del_mac_all_vlan(struct i40e_vsi *vsi, u8 *macaddr,
+			  bool is_vf, bool is_netdev);
 bool i40e_is_vsi_in_vlan(struct i40e_vsi *vsi);
 struct i40e_mac_filter *i40e_find_mac(struct i40e_vsi *vsi, u8 *macaddr,
 				      bool is_vf, bool is_netdev);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/intel/i40e/i40e_main.c linux-libre-4.4.107-gnu/drivers/net/ethernet/intel/i40e/i40e_main.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/intel/i40e/i40e_main.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/intel/i40e/i40e_main.c	2017-12-20 04:05:01.000000000 -0500
@@ -1317,6 +1317,42 @@ struct i40e_mac_filter *i40e_put_mac_in_
 }
 
 /**
+ * i40e_del_mac_all_vlan - Remove a MAC filter from all VLANS
+ * @vsi: the VSI to be searched
+ * @macaddr: the mac address to be removed
+ * @is_vf: true if it is a VF
+ * @is_netdev: true if it is a netdev
+ *
+ * Removes a given MAC address from a VSI, regardless of VLAN
+ *
+ * Returns 0 for success, or error
+ **/
+int i40e_del_mac_all_vlan(struct i40e_vsi *vsi, u8 *macaddr,
+			  bool is_vf, bool is_netdev)
+{
+	struct i40e_mac_filter *f = NULL;
+	int changed = 0;
+
+	WARN(!spin_is_locked(&vsi->mac_filter_list_lock),
+	     "Missing mac_filter_list_lock\n");
+	list_for_each_entry(f, &vsi->mac_filter_list, list) {
+		if ((ether_addr_equal(macaddr, f->macaddr)) &&
+		    (is_vf == f->is_vf) &&
+		    (is_netdev == f->is_netdev)) {
+			f->counter--;
+			f->changed = true;
+			changed = 1;
+		}
+	}
+	if (changed) {
+		vsi->flags |= I40E_VSI_FLAG_FILTER_CHANGED;
+		vsi->back->flags |= I40E_FLAG_FILTER_SYNC;
+		return 0;
+	}
+	return -ENOENT;
+}
+
+/**
  * i40e_rm_default_mac_filter - Remove the default MAC filter set by NVM
  * @vsi: the PF Main VSI - inappropriate for any other VSI
  * @macaddr: the MAC address
@@ -1547,9 +1583,11 @@ static int i40e_set_mac(struct net_devic
 		spin_unlock_bh(&vsi->mac_filter_list_lock);
 	}
 
-	i40e_sync_vsi_filters(vsi, false);
 	ether_addr_copy(netdev->dev_addr, addr->sa_data);
-
+	/* schedule our worker thread which will take care of
+	 * applying the new filter changes
+	 */
+	i40e_service_event_schedule(vsi->back);
 	return 0;
 }
 
@@ -1935,11 +1973,13 @@ int i40e_sync_vsi_filters(struct i40e_vs
 
 	/* Now process 'del_list' outside the lock */
 	if (!list_empty(&tmp_del_list)) {
+		int del_list_size;
+
 		filter_list_len = pf->hw.aq.asq_buf_size /
 			    sizeof(struct i40e_aqc_remove_macvlan_element_data);
-		del_list = kcalloc(filter_list_len,
-			    sizeof(struct i40e_aqc_remove_macvlan_element_data),
-			    GFP_KERNEL);
+		del_list_size = filter_list_len *
+			    sizeof(struct i40e_aqc_remove_macvlan_element_data);
+		del_list = kzalloc(del_list_size, GFP_KERNEL);
 		if (!del_list) {
 			i40e_cleanup_add_list(&tmp_add_list);
 
@@ -1971,7 +2011,7 @@ int i40e_sync_vsi_filters(struct i40e_vs
 						  NULL);
 				aq_err = pf->hw.aq.asq_last_status;
 				num_del = 0;
-				memset(del_list, 0, sizeof(*del_list));
+				memset(del_list, 0, del_list_size);
 
 				if (ret && aq_err != I40E_AQ_RC_ENOENT)
 					dev_err(&pf->pdev->dev,
@@ -2004,13 +2044,14 @@ int i40e_sync_vsi_filters(struct i40e_vs
 	}
 
 	if (!list_empty(&tmp_add_list)) {
+		int add_list_size;
 
 		/* do all the adds now */
 		filter_list_len = pf->hw.aq.asq_buf_size /
 			       sizeof(struct i40e_aqc_add_macvlan_element_data),
-		add_list = kcalloc(filter_list_len,
-			       sizeof(struct i40e_aqc_add_macvlan_element_data),
-			       GFP_KERNEL);
+		add_list_size = filter_list_len *
+			       sizeof(struct i40e_aqc_add_macvlan_element_data);
+		add_list = kzalloc(add_list_size, GFP_KERNEL);
 		if (!add_list) {
 			/* Purge element from temporary lists */
 			i40e_cleanup_add_list(&tmp_add_list);
@@ -2048,7 +2089,7 @@ int i40e_sync_vsi_filters(struct i40e_vs
 
 				if (ret)
 					break;
-				memset(add_list, 0, sizeof(*add_list));
+				memset(add_list, 0, add_list_size);
 			}
 			/* Entries from tmp_add_list were cloned from MAC
 			 * filter list, hence clean those cloned entries
@@ -2112,12 +2153,7 @@ int i40e_sync_vsi_filters(struct i40e_vs
 			 */
 			if (pf->cur_promisc != cur_promisc) {
 				pf->cur_promisc = cur_promisc;
-				if (grab_rtnl)
-					i40e_do_reset_safe(pf,
-						BIT(__I40E_PF_RESET_REQUESTED));
-				else
-					i40e_do_reset(pf,
-						BIT(__I40E_PF_RESET_REQUESTED));
+				set_bit(__I40E_PF_RESET_REQUESTED, &pf->state);
 			}
 		} else {
 			ret = i40e_aq_set_vsi_unicast_promiscuous(
@@ -2377,16 +2413,13 @@ int i40e_vsi_add_vlan(struct i40e_vsi *v
 		}
 	}
 
-	/* Make sure to release before sync_vsi_filter because that
-	 * function will lock/unlock as necessary
-	 */
 	spin_unlock_bh(&vsi->mac_filter_list_lock);
 
-	if (test_bit(__I40E_DOWN, &vsi->back->state) ||
-	    test_bit(__I40E_RESET_RECOVERY_PENDING, &vsi->back->state))
-		return 0;
-
-	return i40e_sync_vsi_filters(vsi, false);
+	/* schedule our worker thread which will take care of
+	 * applying the new filter changes
+	 */
+	i40e_service_event_schedule(vsi->back);
+	return 0;
 }
 
 /**
@@ -2459,16 +2492,13 @@ int i40e_vsi_kill_vlan(struct i40e_vsi *
 		}
 	}
 
-	/* Make sure to release before sync_vsi_filter because that
-	 * function with lock/unlock as necessary
-	 */
 	spin_unlock_bh(&vsi->mac_filter_list_lock);
 
-	if (test_bit(__I40E_DOWN, &vsi->back->state) ||
-	    test_bit(__I40E_RESET_RECOVERY_PENDING, &vsi->back->state))
-		return 0;
-
-	return i40e_sync_vsi_filters(vsi, false);
+	/* schedule our worker thread which will take care of
+	 * applying the new filter changes
+	 */
+	i40e_service_event_schedule(vsi->back);
+	return 0;
 }
 
 /**
@@ -2711,6 +2741,11 @@ static void i40e_config_xps_tx_ring(stru
 		netif_set_xps_queue(ring->netdev, mask, ring->queue_index);
 		free_cpumask_var(mask);
 	}
+
+	/* schedule our worker thread which will take care of
+	 * applying the new filter changes
+	 */
+	i40e_service_event_schedule(vsi->back);
 }
 
 /**
@@ -3560,7 +3595,7 @@ static bool i40e_clean_fdir_tx_irq(struc
 			break;
 
 		/* prevent any other reads prior to eop_desc */
-		read_barrier_depends();
+		smp_rmb();
 
 		/* if the descriptor isn't done, no work yet to do */
 		if (!(eop_desc->cmd_type_offset_bsz &
@@ -6685,6 +6720,7 @@ static void i40e_reset_and_rebuild(struc
 	struct i40e_hw *hw = &pf->hw;
 	u8 set_fc_aq_fail = 0;
 	i40e_status ret;
+	u32 val;
 	u32 v;
 
 	/* Now we wait for GRST to settle out.
@@ -6823,6 +6859,20 @@ static void i40e_reset_and_rebuild(struc
 		}
 	}
 
+	/* Reconfigure hardware for allowing smaller MSS in the case
+	 * of TSO, so that we avoid the MDD being fired and causing
+	 * a reset in the case of small MSS+TSO.
+	 */
+#define I40E_REG_MSS          0x000E64DC
+#define I40E_REG_MSS_MIN_MASK 0x3FF0000
+#define I40E_64BYTE_MSS       0x400000
+	val = rd32(hw, I40E_REG_MSS);
+	if ((val & I40E_REG_MSS_MIN_MASK) > I40E_64BYTE_MSS) {
+		val &= ~I40E_REG_MSS_MIN_MASK;
+		val |= I40E_64BYTE_MSS;
+		wr32(hw, I40E_REG_MSS, val);
+	}
+
 	if (((pf->hw.aq.fw_maj_ver == 4) && (pf->hw.aq.fw_min_ver < 33)) ||
 	    (pf->hw.aq.fw_maj_ver < 4)) {
 		msleep(75);
@@ -8545,7 +8595,7 @@ static int i40e_ndo_bridge_getlink(struc
 		return 0;
 
 	return ndo_dflt_bridge_getlink(skb, pid, seq, dev, veb->bridge_mode,
-				       nlflags, 0, 0, filter_mask, NULL);
+				       0, 0, nlflags, filter_mask, NULL);
 }
 
 #define I40E_MAX_TUNNEL_HDR_LEN 80
@@ -10183,6 +10233,7 @@ static int i40e_probe(struct pci_dev *pd
 	u16 link_status;
 	int err;
 	u32 len;
+	u32 val;
 	u32 i;
 	u8 set_fc_aq_fail;
 
@@ -10493,6 +10544,17 @@ static int i40e_probe(struct pci_dev *pd
 			 i40e_stat_str(&pf->hw, err),
 			 i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status));
 
+	/* Reconfigure hardware for allowing smaller MSS in the case
+	 * of TSO, so that we avoid the MDD being fired and causing
+	 * a reset in the case of small MSS+TSO.
+	 */
+	val = rd32(hw, I40E_REG_MSS);
+	if ((val & I40E_REG_MSS_MIN_MASK) > I40E_64BYTE_MSS) {
+		val &= ~I40E_REG_MSS_MIN_MASK;
+		val |= I40E_64BYTE_MSS;
+		wr32(hw, I40E_REG_MSS, val);
+	}
+
 	if (((pf->hw.aq.fw_maj_ver == 4) && (pf->hw.aq.fw_min_ver < 33)) ||
 	    (pf->hw.aq.fw_maj_ver < 4)) {
 		msleep(75);
@@ -10791,6 +10853,12 @@ static pci_ers_result_t i40e_pci_error_d
 
 	dev_info(&pdev->dev, "%s: error %d\n", __func__, error);
 
+	if (!pf) {
+		dev_info(&pdev->dev,
+			 "Cannot recover - error happened during device probe\n");
+		return PCI_ERS_RESULT_DISCONNECT;
+	}
+
 	/* shutdown all operations */
 	if (!test_bit(__I40E_SUSPENDED, &pf->state)) {
 		rtnl_lock();
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/intel/i40e/i40e_txrx.c linux-libre-4.4.107-gnu/drivers/net/ethernet/intel/i40e/i40e_txrx.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/intel/i40e/i40e_txrx.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/intel/i40e/i40e_txrx.c	2017-12-20 04:05:01.000000000 -0500
@@ -235,6 +235,9 @@ static int i40e_add_del_fdir_udpv4(struc
 				 "Filter deleted for PCTYPE %d loc = %d\n",
 				 fd_data->pctype, fd_data->fd_id);
 	}
+	if (err)
+		kfree(raw_packet);
+
 	return err ? -EOPNOTSUPP : 0;
 }
 
@@ -312,6 +315,9 @@ static int i40e_add_del_fdir_tcpv4(struc
 				 fd_data->pctype, fd_data->fd_id);
 	}
 
+	if (err)
+		kfree(raw_packet);
+
 	return err ? -EOPNOTSUPP : 0;
 }
 
@@ -387,6 +393,9 @@ static int i40e_add_del_fdir_ipv4(struct
 		}
 	}
 
+	if (err)
+		kfree(raw_packet);
+
 	return err ? -EOPNOTSUPP : 0;
 }
 
@@ -526,11 +535,7 @@ static void i40e_unmap_and_free_tx_resou
 					    struct i40e_tx_buffer *tx_buffer)
 {
 	if (tx_buffer->skb) {
-		if (tx_buffer->tx_flags & I40E_TX_FLAGS_FD_SB)
-			kfree(tx_buffer->raw_buf);
-		else
-			dev_kfree_skb_any(tx_buffer->skb);
-
+		dev_kfree_skb_any(tx_buffer->skb);
 		if (dma_unmap_len(tx_buffer, len))
 			dma_unmap_single(ring->dev,
 					 dma_unmap_addr(tx_buffer, dma),
@@ -542,6 +547,10 @@ static void i40e_unmap_and_free_tx_resou
 			       dma_unmap_len(tx_buffer, len),
 			       DMA_TO_DEVICE);
 	}
+
+	if (tx_buffer->tx_flags & I40E_TX_FLAGS_FD_SB)
+		kfree(tx_buffer->raw_buf);
+
 	tx_buffer->next_to_watch = NULL;
 	tx_buffer->skb = NULL;
 	dma_unmap_len_set(tx_buffer, len, 0);
@@ -654,7 +663,7 @@ static bool i40e_clean_tx_irq(struct i40
 			break;
 
 		/* prevent any other reads prior to eop_desc */
-		read_barrier_depends();
+		smp_rmb();
 
 		/* we have caught up to head, no work left to do */
 		if (tx_head == tx_desc)
@@ -1416,31 +1425,12 @@ checksum_fail:
 }
 
 /**
- * i40e_rx_hash - returns the hash value from the Rx descriptor
- * @ring: descriptor ring
- * @rx_desc: specific descriptor
- **/
-static inline u32 i40e_rx_hash(struct i40e_ring *ring,
-			       union i40e_rx_desc *rx_desc)
-{
-	const __le64 rss_mask =
-		cpu_to_le64((u64)I40E_RX_DESC_FLTSTAT_RSS_HASH <<
-			    I40E_RX_DESC_STATUS_FLTSTAT_SHIFT);
-
-	if ((ring->netdev->features & NETIF_F_RXHASH) &&
-	    (rx_desc->wb.qword1.status_error_len & rss_mask) == rss_mask)
-		return le32_to_cpu(rx_desc->wb.qword0.hi_dword.rss);
-	else
-		return 0;
-}
-
-/**
- * i40e_ptype_to_hash - get a hash type
+ * i40e_ptype_to_htype - get a hash type
  * @ptype: the ptype value from the descriptor
  *
  * Returns a hash type to be used by skb_set_hash
  **/
-static inline enum pkt_hash_types i40e_ptype_to_hash(u8 ptype)
+static inline enum pkt_hash_types i40e_ptype_to_htype(u8 ptype)
 {
 	struct i40e_rx_ptype_decoded decoded = decode_rx_desc_ptype(ptype);
 
@@ -1458,6 +1448,30 @@ static inline enum pkt_hash_types i40e_p
 }
 
 /**
+ * i40e_rx_hash - set the hash value in the skb
+ * @ring: descriptor ring
+ * @rx_desc: specific descriptor
+ **/
+static inline void i40e_rx_hash(struct i40e_ring *ring,
+				union i40e_rx_desc *rx_desc,
+				struct sk_buff *skb,
+				u8 rx_ptype)
+{
+	u32 hash;
+	const __le64 rss_mask  =
+		cpu_to_le64((u64)I40E_RX_DESC_FLTSTAT_RSS_HASH <<
+			    I40E_RX_DESC_STATUS_FLTSTAT_SHIFT);
+
+	if (ring->netdev->features & NETIF_F_RXHASH)
+		return;
+
+	if ((rx_desc->wb.qword1.status_error_len & rss_mask) == rss_mask) {
+		hash = le32_to_cpu(rx_desc->wb.qword0.hi_dword.rss);
+		skb_set_hash(skb, hash, i40e_ptype_to_htype(rx_ptype));
+	}
+}
+
+/**
  * i40e_clean_rx_irq_ps - Reclaim resources after receive; packet split
  * @rx_ring:  rx ring to clean
  * @budget:   how many cleans we're allowed
@@ -1606,8 +1620,8 @@ static int i40e_clean_rx_irq_ps(struct i
 			continue;
 		}
 
-		skb_set_hash(skb, i40e_rx_hash(rx_ring, rx_desc),
-			     i40e_ptype_to_hash(rx_ptype));
+		i40e_rx_hash(rx_ring, rx_desc, skb, rx_ptype);
+
 		if (unlikely(rx_status & I40E_RXD_QW1_STATUS_TSYNVALID_MASK)) {
 			i40e_ptp_rx_hwtstamp(vsi->back, skb, (rx_status &
 					   I40E_RXD_QW1_STATUS_TSYNINDX_MASK) >>
@@ -1736,8 +1750,7 @@ static int i40e_clean_rx_irq_1buf(struct
 			continue;
 		}
 
-		skb_set_hash(skb, i40e_rx_hash(rx_ring, rx_desc),
-			     i40e_ptype_to_hash(rx_ptype));
+		i40e_rx_hash(rx_ring, rx_desc, skb, rx_ptype);
 		if (unlikely(rx_status & I40E_RXD_QW1_STATUS_TSYNVALID_MASK)) {
 			i40e_ptp_rx_hwtstamp(vsi->back, skb, (rx_status &
 					   I40E_RXD_QW1_STATUS_TSYNINDX_MASK) >>
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c linux-libre-4.4.107-gnu/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c	2017-12-20 04:05:01.000000000 -0500
@@ -549,12 +549,15 @@ static int i40e_alloc_vsi_res(struct i40
 			i40e_vsi_add_pvid(vsi, vf->port_vlan_id);
 
 		spin_lock_bh(&vsi->mac_filter_list_lock);
-		f = i40e_add_filter(vsi, vf->default_lan_addr.addr,
-				    vf->port_vlan_id ? vf->port_vlan_id : -1,
-				    true, false);
-		if (!f)
-			dev_info(&pf->pdev->dev,
-				 "Could not allocate VF MAC addr\n");
+		if (is_valid_ether_addr(vf->default_lan_addr.addr)) {
+			f = i40e_add_filter(vsi, vf->default_lan_addr.addr,
+				       vf->port_vlan_id ? vf->port_vlan_id : -1,
+				       true, false);
+			if (!f)
+				dev_info(&pf->pdev->dev,
+					 "Could not add MAC filter %pM for VF %d\n",
+					vf->default_lan_addr.addr, vf->vf_id);
+		}
 		f = i40e_add_filter(vsi, brdcast,
 				    vf->port_vlan_id ? vf->port_vlan_id : -1,
 				    true, false);
@@ -1680,8 +1683,12 @@ static int i40e_vc_del_mac_addr_msg(stru
 	spin_lock_bh(&vsi->mac_filter_list_lock);
 	/* delete addresses from the list */
 	for (i = 0; i < al->num_elements; i++)
-		i40e_del_filter(vsi, al->list[i].addr,
-				I40E_VLAN_ANY, true, false);
+		if (i40e_del_mac_all_vlan(vsi, al->list[i].addr, true, false)) {
+			ret = I40E_ERR_INVALID_MAC_ADDR;
+			spin_unlock_bh(&vsi->mac_filter_list_lock);
+			goto error_param;
+		}
+
 	spin_unlock_bh(&vsi->mac_filter_list_lock);
 
 	/* program the updated filter list */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/intel/i40evf/i40e_txrx.c linux-libre-4.4.107-gnu/drivers/net/ethernet/intel/i40evf/i40e_txrx.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/intel/i40evf/i40e_txrx.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/intel/i40evf/i40e_txrx.c	2017-12-20 04:05:01.000000000 -0500
@@ -51,11 +51,7 @@ static void i40e_unmap_and_free_tx_resou
 					    struct i40e_tx_buffer *tx_buffer)
 {
 	if (tx_buffer->skb) {
-		if (tx_buffer->tx_flags & I40E_TX_FLAGS_FD_SB)
-			kfree(tx_buffer->raw_buf);
-		else
-			dev_kfree_skb_any(tx_buffer->skb);
-
+		dev_kfree_skb_any(tx_buffer->skb);
 		if (dma_unmap_len(tx_buffer, len))
 			dma_unmap_single(ring->dev,
 					 dma_unmap_addr(tx_buffer, dma),
@@ -67,6 +63,10 @@ static void i40e_unmap_and_free_tx_resou
 			       dma_unmap_len(tx_buffer, len),
 			       DMA_TO_DEVICE);
 	}
+
+	if (tx_buffer->tx_flags & I40E_TX_FLAGS_FD_SB)
+		kfree(tx_buffer->raw_buf);
+
 	tx_buffer->next_to_watch = NULL;
 	tx_buffer->skb = NULL;
 	dma_unmap_len_set(tx_buffer, len, 0);
@@ -172,7 +172,7 @@ static bool i40e_clean_tx_irq(struct i40
 			break;
 
 		/* prevent any other reads prior to eop_desc */
-		read_barrier_depends();
+		smp_rmb();
 
 		/* we have caught up to head, no work left to do */
 		if (tx_head == tx_desc)
@@ -245,16 +245,6 @@ static bool i40e_clean_tx_irq(struct i40
 	tx_ring->q_vector->tx.total_bytes += total_bytes;
 	tx_ring->q_vector->tx.total_packets += total_packets;
 
-	/* check to see if there are any non-cache aligned descriptors
-	 * waiting to be written back, and kick the hardware to force
-	 * them to be written back in case of napi polling
-	 */
-	if (budget &&
-	    !((i & WB_STRIDE) == WB_STRIDE) &&
-	    !test_bit(__I40E_DOWN, &tx_ring->vsi->state) &&
-	    (I40E_DESC_UNUSED(tx_ring) != tx_ring->count))
-		tx_ring->arm_wb = true;
-
 	netdev_tx_completed_queue(netdev_get_tx_queue(tx_ring->netdev,
 						      tx_ring->queue_index),
 				  total_packets, total_bytes);
@@ -889,31 +879,12 @@ checksum_fail:
 }
 
 /**
- * i40e_rx_hash - returns the hash value from the Rx descriptor
- * @ring: descriptor ring
- * @rx_desc: specific descriptor
- **/
-static inline u32 i40e_rx_hash(struct i40e_ring *ring,
-			       union i40e_rx_desc *rx_desc)
-{
-	const __le64 rss_mask =
-		cpu_to_le64((u64)I40E_RX_DESC_FLTSTAT_RSS_HASH <<
-			    I40E_RX_DESC_STATUS_FLTSTAT_SHIFT);
-
-	if ((ring->netdev->features & NETIF_F_RXHASH) &&
-	    (rx_desc->wb.qword1.status_error_len & rss_mask) == rss_mask)
-		return le32_to_cpu(rx_desc->wb.qword0.hi_dword.rss);
-	else
-		return 0;
-}
-
-/**
- * i40e_ptype_to_hash - get a hash type
+ * i40e_ptype_to_htype - get a hash type
  * @ptype: the ptype value from the descriptor
  *
  * Returns a hash type to be used by skb_set_hash
  **/
-static inline enum pkt_hash_types i40e_ptype_to_hash(u8 ptype)
+static inline enum pkt_hash_types i40e_ptype_to_htype(u8 ptype)
 {
 	struct i40e_rx_ptype_decoded decoded = decode_rx_desc_ptype(ptype);
 
@@ -931,6 +902,30 @@ static inline enum pkt_hash_types i40e_p
 }
 
 /**
+ * i40e_rx_hash - set the hash value in the skb
+ * @ring: descriptor ring
+ * @rx_desc: specific descriptor
+ **/
+static inline void i40e_rx_hash(struct i40e_ring *ring,
+				union i40e_rx_desc *rx_desc,
+				struct sk_buff *skb,
+				u8 rx_ptype)
+{
+	u32 hash;
+	const __le64 rss_mask  =
+		cpu_to_le64((u64)I40E_RX_DESC_FLTSTAT_RSS_HASH <<
+			    I40E_RX_DESC_STATUS_FLTSTAT_SHIFT);
+
+	if (ring->netdev->features & NETIF_F_RXHASH)
+		return;
+
+	if ((rx_desc->wb.qword1.status_error_len & rss_mask) == rss_mask) {
+		hash = le32_to_cpu(rx_desc->wb.qword0.hi_dword.rss);
+		skb_set_hash(skb, hash, i40e_ptype_to_htype(rx_ptype));
+	}
+}
+
+/**
  * i40e_clean_rx_irq_ps - Reclaim resources after receive; packet split
  * @rx_ring:  rx ring to clean
  * @budget:   how many cleans we're allowed
@@ -1071,8 +1066,8 @@ static int i40e_clean_rx_irq_ps(struct i
 			continue;
 		}
 
-		skb_set_hash(skb, i40e_rx_hash(rx_ring, rx_desc),
-			     i40e_ptype_to_hash(rx_ptype));
+		i40e_rx_hash(rx_ring, rx_desc, skb, rx_ptype);
+
 		/* probably a little skewed due to removing CRC */
 		total_rx_bytes += skb->len;
 		total_rx_packets++;
@@ -1189,8 +1184,7 @@ static int i40e_clean_rx_irq_1buf(struct
 			continue;
 		}
 
-		skb_set_hash(skb, i40e_rx_hash(rx_ring, rx_desc),
-			     i40e_ptype_to_hash(rx_ptype));
+		i40e_rx_hash(rx_ring, rx_desc, skb, rx_ptype);
 		/* probably a little skewed due to removing CRC */
 		total_rx_bytes += skb->len;
 		total_rx_packets++;
@@ -1770,6 +1764,9 @@ static inline void i40evf_tx_map(struct
 	u32 td_tag = 0;
 	dma_addr_t dma;
 	u16 gso_segs;
+	u16 desc_count = 0;
+	bool tail_bump = true;
+	bool do_rs = false;
 
 	if (tx_flags & I40E_TX_FLAGS_HW_VLAN) {
 		td_cmd |= I40E_TX_DESC_CMD_IL2TAG1;
@@ -1810,6 +1807,8 @@ static inline void i40evf_tx_map(struct
 
 			tx_desc++;
 			i++;
+			desc_count++;
+
 			if (i == tx_ring->count) {
 				tx_desc = I40E_TX_DESC(tx_ring, 0);
 				i = 0;
@@ -1829,6 +1828,8 @@ static inline void i40evf_tx_map(struct
 
 		tx_desc++;
 		i++;
+		desc_count++;
+
 		if (i == tx_ring->count) {
 			tx_desc = I40E_TX_DESC(tx_ring, 0);
 			i = 0;
@@ -1843,35 +1844,7 @@ static inline void i40evf_tx_map(struct
 		tx_bi = &tx_ring->tx_bi[i];
 	}
 
-	/* Place RS bit on last descriptor of any packet that spans across the
-	 * 4th descriptor (WB_STRIDE aka 0x3) in a 64B cacheline.
-	 */
 #define WB_STRIDE 0x3
-	if (((i & WB_STRIDE) != WB_STRIDE) &&
-	    (first <= &tx_ring->tx_bi[i]) &&
-	    (first >= &tx_ring->tx_bi[i & ~WB_STRIDE])) {
-		tx_desc->cmd_type_offset_bsz =
-			build_ctob(td_cmd, td_offset, size, td_tag) |
-			cpu_to_le64((u64)I40E_TX_DESC_CMD_EOP <<
-					 I40E_TXD_QW1_CMD_SHIFT);
-	} else {
-		tx_desc->cmd_type_offset_bsz =
-			build_ctob(td_cmd, td_offset, size, td_tag) |
-			cpu_to_le64((u64)I40E_TXD_CMD <<
-					 I40E_TXD_QW1_CMD_SHIFT);
-	}
-
-	netdev_tx_sent_queue(netdev_get_tx_queue(tx_ring->netdev,
-						 tx_ring->queue_index),
-			     first->bytecount);
-
-	/* Force memory writes to complete before letting h/w
-	 * know there are new descriptors to fetch.  (Only
-	 * applicable for weak-ordered memory model archs,
-	 * such as IA-64).
-	 */
-	wmb();
-
 	/* set next_to_watch value indicating a packet is present */
 	first->next_to_watch = tx_desc;
 
@@ -1881,15 +1854,78 @@ static inline void i40evf_tx_map(struct
 
 	tx_ring->next_to_use = i;
 
+	netdev_tx_sent_queue(netdev_get_tx_queue(tx_ring->netdev,
+						 tx_ring->queue_index),
+						 first->bytecount);
 	i40evf_maybe_stop_tx(tx_ring, DESC_NEEDED);
+
+	/* Algorithm to optimize tail and RS bit setting:
+	 * if xmit_more is supported
+	 *	if xmit_more is true
+	 *		do not update tail and do not mark RS bit.
+	 *	if xmit_more is false and last xmit_more was false
+	 *		if every packet spanned less than 4 desc
+	 *			then set RS bit on 4th packet and update tail
+	 *			on every packet
+	 *		else
+	 *			update tail and set RS bit on every packet.
+	 *	if xmit_more is false and last_xmit_more was true
+	 *		update tail and set RS bit.
+	 * else (kernel < 3.18)
+	 *	if every packet spanned less than 4 desc
+	 *		then set RS bit on 4th packet and update tail
+	 *		on every packet
+	 *	else
+	 *		set RS bit on EOP for every packet and update tail
+	 *
+	 * Optimization: wmb to be issued only in case of tail update.
+	 * Also optimize the Descriptor WB path for RS bit with the same
+	 * algorithm.
+	 *
+	 * Note: If there are less than 4 packets
+	 * pending and interrupts were disabled the service task will
+	 * trigger a force WB.
+	 */
+	if (skb->xmit_more  &&
+	    !netif_xmit_stopped(netdev_get_tx_queue(tx_ring->netdev,
+						    tx_ring->queue_index))) {
+		tx_ring->flags |= I40E_TXR_FLAGS_LAST_XMIT_MORE_SET;
+		tail_bump = false;
+	} else if (!skb->xmit_more &&
+		   !netif_xmit_stopped(netdev_get_tx_queue(tx_ring->netdev,
+						       tx_ring->queue_index)) &&
+		   (!(tx_ring->flags & I40E_TXR_FLAGS_LAST_XMIT_MORE_SET)) &&
+		   (tx_ring->packet_stride < WB_STRIDE) &&
+		   (desc_count < WB_STRIDE)) {
+		tx_ring->packet_stride++;
+	} else {
+		tx_ring->packet_stride = 0;
+		tx_ring->flags &= ~I40E_TXR_FLAGS_LAST_XMIT_MORE_SET;
+		do_rs = true;
+	}
+	if (do_rs)
+		tx_ring->packet_stride = 0;
+
+	tx_desc->cmd_type_offset_bsz =
+			build_ctob(td_cmd, td_offset, size, td_tag) |
+			cpu_to_le64((u64)(do_rs ? I40E_TXD_CMD :
+						  I40E_TX_DESC_CMD_EOP) <<
+						  I40E_TXD_QW1_CMD_SHIFT);
+
 	/* notify HW of packet */
-	if (!skb->xmit_more ||
-	    netif_xmit_stopped(netdev_get_tx_queue(tx_ring->netdev,
-						   tx_ring->queue_index)))
-		writel(i, tx_ring->tail);
-	else
+	if (!tail_bump)
 		prefetchw(tx_desc + 1);
 
+	if (tail_bump) {
+		/* Force memory writes to complete before letting h/w
+		 * know there are new descriptors to fetch.  (Only
+		 * applicable for weak-ordered memory model archs,
+		 * such as IA-64).
+		 */
+		wmb();
+		writel(i, tx_ring->tail);
+	}
+
 	return;
 
 dma_error:
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/intel/i40evf/i40e_txrx.h linux-libre-4.4.107-gnu/drivers/net/ethernet/intel/i40evf/i40e_txrx.h
--- linux-libre-4.4-gnu/drivers/net/ethernet/intel/i40evf/i40e_txrx.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/intel/i40evf/i40e_txrx.h	2017-12-20 04:05:01.000000000 -0500
@@ -267,6 +267,8 @@ struct i40e_ring {
 
 	bool ring_active;		/* is ring online or not */
 	bool arm_wb;		/* do something to arm write back */
+	u8 packet_stride;
+#define I40E_TXR_FLAGS_LAST_XMIT_MORE_SET BIT(2)
 
 	u16 flags;
 #define I40E_TXR_FLAGS_WB_ON_ITR	BIT(0)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/intel/i40evf/i40evf_ethtool.c linux-libre-4.4.107-gnu/drivers/net/ethernet/intel/i40evf/i40evf_ethtool.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/intel/i40evf/i40evf_ethtool.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/intel/i40evf/i40evf_ethtool.c	2017-12-20 04:05:01.000000000 -0500
@@ -477,54 +477,30 @@ static int i40evf_set_rss_hash_opt(struc
 
 	switch (nfc->flow_type) {
 	case TCP_V4_FLOW:
-		switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
-		case 0:
-			hena &= ~BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_TCP);
-			break;
-		case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
+		if (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3))
 			hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_TCP);
-			break;
-		default:
+		else
 			return -EINVAL;
-		}
 		break;
 	case TCP_V6_FLOW:
-		switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
-		case 0:
-			hena &= ~BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_TCP);
-			break;
-		case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
+		if (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3))
 			hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_TCP);
-			break;
-		default:
+		else
 			return -EINVAL;
-		}
 		break;
 	case UDP_V4_FLOW:
-		switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
-		case 0:
-			hena &= ~(BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_UDP) |
-				  BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4));
-			break;
-		case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
+		if (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
 			hena |= (BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_UDP) |
 				 BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4));
-			break;
-		default:
+		} else {
 			return -EINVAL;
 		}
 		break;
 	case UDP_V6_FLOW:
-		switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
-		case 0:
-			hena &= ~(BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_UDP) |
-				  BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6));
-			break;
-		case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
+		if (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
 			hena |= (BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_UDP) |
 				 BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6));
-			break;
-		default:
+		} else {
 			return -EINVAL;
 		}
 		break;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/intel/i40evf/i40evf_main.c linux-libre-4.4.107-gnu/drivers/net/ethernet/intel/i40evf/i40evf_main.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/intel/i40evf/i40evf_main.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/intel/i40evf/i40evf_main.c	2017-12-20 04:05:01.000000000 -0500
@@ -1864,6 +1864,9 @@ void i40evf_free_all_tx_resources(struct
 {
 	int i;
 
+	if (!adapter->tx_rings)
+		return;
+
 	for (i = 0; i < adapter->num_active_queues; i++)
 		if (adapter->tx_rings[i]->desc)
 			i40evf_free_tx_resources(adapter->tx_rings[i]);
@@ -1932,6 +1935,9 @@ void i40evf_free_all_rx_resources(struct
 {
 	int i;
 
+	if (!adapter->rx_rings)
+		return;
+
 	for (i = 0; i < adapter->num_active_queues; i++)
 		if (adapter->rx_rings[i]->desc)
 			i40evf_free_rx_resources(adapter->rx_rings[i]);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/intel/i40evf/i40evf_virtchnl.c linux-libre-4.4.107-gnu/drivers/net/ethernet/intel/i40evf/i40evf_virtchnl.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/intel/i40evf/i40evf_virtchnl.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/intel/i40evf/i40evf_virtchnl.c	2017-12-20 04:05:01.000000000 -0500
@@ -391,6 +391,7 @@ void i40evf_add_ether_addrs(struct i40ev
 	struct i40e_virtchnl_ether_addr_list *veal;
 	int len, i = 0, count = 0;
 	struct i40evf_mac_filter *f;
+	bool more = false;
 
 	if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
 		/* bail because we already have a command pending */
@@ -415,7 +416,9 @@ void i40evf_add_ether_addrs(struct i40ev
 		count = (I40EVF_MAX_AQ_BUF_SIZE -
 			 sizeof(struct i40e_virtchnl_ether_addr_list)) /
 			sizeof(struct i40e_virtchnl_ether_addr);
-		len = I40EVF_MAX_AQ_BUF_SIZE;
+		len = sizeof(struct i40e_virtchnl_ether_addr_list) +
+		      (count * sizeof(struct i40e_virtchnl_ether_addr));
+		more = true;
 	}
 
 	veal = kzalloc(len, GFP_ATOMIC);
@@ -431,7 +434,8 @@ void i40evf_add_ether_addrs(struct i40ev
 			f->add = false;
 		}
 	}
-	adapter->aq_required &= ~I40EVF_FLAG_AQ_ADD_MAC_FILTER;
+	if (!more)
+		adapter->aq_required &= ~I40EVF_FLAG_AQ_ADD_MAC_FILTER;
 	i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS,
 			   (u8 *)veal, len);
 	kfree(veal);
@@ -450,6 +454,7 @@ void i40evf_del_ether_addrs(struct i40ev
 	struct i40e_virtchnl_ether_addr_list *veal;
 	struct i40evf_mac_filter *f, *ftmp;
 	int len, i = 0, count = 0;
+	bool more = false;
 
 	if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
 		/* bail because we already have a command pending */
@@ -474,7 +479,9 @@ void i40evf_del_ether_addrs(struct i40ev
 		count = (I40EVF_MAX_AQ_BUF_SIZE -
 			 sizeof(struct i40e_virtchnl_ether_addr_list)) /
 			sizeof(struct i40e_virtchnl_ether_addr);
-		len = I40EVF_MAX_AQ_BUF_SIZE;
+		len = sizeof(struct i40e_virtchnl_ether_addr_list) +
+		      (count * sizeof(struct i40e_virtchnl_ether_addr));
+		more = true;
 	}
 	veal = kzalloc(len, GFP_ATOMIC);
 	if (!veal)
@@ -490,7 +497,8 @@ void i40evf_del_ether_addrs(struct i40ev
 			kfree(f);
 		}
 	}
-	adapter->aq_required &= ~I40EVF_FLAG_AQ_DEL_MAC_FILTER;
+	if (!more)
+		adapter->aq_required &= ~I40EVF_FLAG_AQ_DEL_MAC_FILTER;
 	i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS,
 			   (u8 *)veal, len);
 	kfree(veal);
@@ -509,6 +517,7 @@ void i40evf_add_vlans(struct i40evf_adap
 	struct i40e_virtchnl_vlan_filter_list *vvfl;
 	int len, i = 0, count = 0;
 	struct i40evf_vlan_filter *f;
+	bool more = false;
 
 	if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
 		/* bail because we already have a command pending */
@@ -534,7 +543,9 @@ void i40evf_add_vlans(struct i40evf_adap
 		count = (I40EVF_MAX_AQ_BUF_SIZE -
 			 sizeof(struct i40e_virtchnl_vlan_filter_list)) /
 			sizeof(u16);
-		len = I40EVF_MAX_AQ_BUF_SIZE;
+		len = sizeof(struct i40e_virtchnl_vlan_filter_list) +
+		      (count * sizeof(u16));
+		more = true;
 	}
 	vvfl = kzalloc(len, GFP_ATOMIC);
 	if (!vvfl)
@@ -549,7 +560,8 @@ void i40evf_add_vlans(struct i40evf_adap
 			f->add = false;
 		}
 	}
-	adapter->aq_required &= ~I40EVF_FLAG_AQ_ADD_VLAN_FILTER;
+	if (!more)
+		adapter->aq_required &= ~I40EVF_FLAG_AQ_ADD_VLAN_FILTER;
 	i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_ADD_VLAN, (u8 *)vvfl, len);
 	kfree(vvfl);
 }
@@ -567,6 +579,7 @@ void i40evf_del_vlans(struct i40evf_adap
 	struct i40e_virtchnl_vlan_filter_list *vvfl;
 	struct i40evf_vlan_filter *f, *ftmp;
 	int len, i = 0, count = 0;
+	bool more = false;
 
 	if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
 		/* bail because we already have a command pending */
@@ -592,7 +605,9 @@ void i40evf_del_vlans(struct i40evf_adap
 		count = (I40EVF_MAX_AQ_BUF_SIZE -
 			 sizeof(struct i40e_virtchnl_vlan_filter_list)) /
 			sizeof(u16);
-		len = I40EVF_MAX_AQ_BUF_SIZE;
+		len = sizeof(struct i40e_virtchnl_vlan_filter_list) +
+		      (count * sizeof(u16));
+		more = true;
 	}
 	vvfl = kzalloc(len, GFP_ATOMIC);
 	if (!vvfl)
@@ -608,7 +623,8 @@ void i40evf_del_vlans(struct i40evf_adap
 			kfree(f);
 		}
 	}
-	adapter->aq_required &= ~I40EVF_FLAG_AQ_DEL_VLAN_FILTER;
+	if (!more)
+		adapter->aq_required &= ~I40EVF_FLAG_AQ_DEL_VLAN_FILTER;
 	i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_DEL_VLAN, (u8 *)vvfl, len);
 	kfree(vvfl);
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/intel/igb/e1000_82575.c linux-libre-4.4.107-gnu/drivers/net/ethernet/intel/igb/e1000_82575.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/intel/igb/e1000_82575.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/intel/igb/e1000_82575.c	2017-12-20 04:05:01.000000000 -0500
@@ -223,6 +223,17 @@ static s32 igb_init_phy_params_82575(str
 	hw->bus.func = (rd32(E1000_STATUS) & E1000_STATUS_FUNC_MASK) >>
 			E1000_STATUS_FUNC_SHIFT;
 
+	/* Make sure the PHY is in a good state. Several people have reported
+	 * firmware leaving the PHY's page select register set to something
+	 * other than the default of zero, which causes the PHY ID read to
+	 * access something other than the intended register.
+	 */
+	ret_val = hw->phy.ops.reset(hw);
+	if (ret_val) {
+		hw_dbg("Error resetting the PHY.\n");
+		goto out;
+	}
+
 	/* Set phy->phy_addr and phy->id. */
 	ret_val = igb_get_phy_id_82575(hw);
 	if (ret_val)
@@ -294,6 +305,7 @@ static s32 igb_init_phy_params_82575(str
 	case I210_I_PHY_ID:
 		phy->type		= e1000_phy_i210;
 		phy->ops.check_polarity	= igb_check_polarity_m88;
+		phy->ops.get_cfg_done	= igb_get_cfg_done_i210;
 		phy->ops.get_phy_info	= igb_get_phy_info_m88;
 		phy->ops.get_cable_length = igb_get_cable_length_m88_gen2;
 		phy->ops.set_d0_lplu_state = igb_set_d0_lplu_state_82580;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/intel/igb/e1000_i210.c linux-libre-4.4.107-gnu/drivers/net/ethernet/intel/igb/e1000_i210.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/intel/igb/e1000_i210.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/intel/igb/e1000_i210.c	2017-12-20 04:05:01.000000000 -0500
@@ -699,9 +699,9 @@ static s32 igb_update_flash_i210(struct
 
 	ret_val = igb_pool_flash_update_done_i210(hw);
 	if (ret_val)
-		hw_dbg("Flash update complete\n");
-	else
 		hw_dbg("Flash update time out\n");
+	else
+		hw_dbg("Flash update complete\n");
 
 out:
 	return ret_val;
@@ -900,3 +900,30 @@ s32 igb_pll_workaround_i210(struct e1000
 	wr32(E1000_MDICNFG, mdicnfg);
 	return ret_val;
 }
+
+/**
+ *  igb_get_cfg_done_i210 - Read config done bit
+ *  @hw: pointer to the HW structure
+ *
+ *  Read the management control register for the config done bit for
+ *  completion status.  NOTE: silicon which is EEPROM-less will fail trying
+ *  to read the config done bit, so an error is *ONLY* logged and returns
+ *  0.  If we were to return with error, EEPROM-less silicon
+ *  would not be able to be reset or change link.
+ **/
+s32 igb_get_cfg_done_i210(struct e1000_hw *hw)
+{
+	s32 timeout = PHY_CFG_TIMEOUT;
+	u32 mask = E1000_NVM_CFG_DONE_PORT_0;
+
+	while (timeout) {
+		if (rd32(E1000_EEMNGCTL_I210) & mask)
+			break;
+		usleep_range(1000, 2000);
+		timeout--;
+	}
+	if (!timeout)
+		hw_dbg("MNG configuration cycle has not completed.\n");
+
+	return 0;
+}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/intel/igb/e1000_i210.h linux-libre-4.4.107-gnu/drivers/net/ethernet/intel/igb/e1000_i210.h
--- linux-libre-4.4-gnu/drivers/net/ethernet/intel/igb/e1000_i210.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/intel/igb/e1000_i210.h	2017-12-20 04:05:01.000000000 -0500
@@ -34,6 +34,7 @@ s32 igb_write_xmdio_reg(struct e1000_hw
 s32 igb_init_nvm_params_i210(struct e1000_hw *hw);
 bool igb_get_flash_presence_i210(struct e1000_hw *hw);
 s32 igb_pll_workaround_i210(struct e1000_hw *hw);
+s32 igb_get_cfg_done_i210(struct e1000_hw *hw);
 
 #define E1000_STM_OPCODE		0xDB00
 #define E1000_EEPROM_FLASH_SIZE_WORD	0x11
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/intel/igb/e1000_phy.c linux-libre-4.4.107-gnu/drivers/net/ethernet/intel/igb/e1000_phy.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/intel/igb/e1000_phy.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/intel/igb/e1000_phy.c	2017-12-20 04:05:01.000000000 -0500
@@ -77,6 +77,10 @@ s32 igb_get_phy_id(struct e1000_hw *hw)
 	s32 ret_val = 0;
 	u16 phy_id;
 
+	/* ensure PHY page selection to fix misconfigured i210 */
+	if ((hw->mac.type == e1000_i210) || (hw->mac.type == e1000_i211))
+		phy->ops.write_reg(hw, I347AT4_PAGE_SELECT, 0);
+
 	ret_val = phy->ops.read_reg(hw, PHY_ID1, &phy_id);
 	if (ret_val)
 		goto out;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/intel/igb/e1000_regs.h linux-libre-4.4.107-gnu/drivers/net/ethernet/intel/igb/e1000_regs.h
--- linux-libre-4.4-gnu/drivers/net/ethernet/intel/igb/e1000_regs.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/intel/igb/e1000_regs.h	2017-12-20 04:05:01.000000000 -0500
@@ -66,6 +66,7 @@
 #define E1000_PBA      0x01000  /* Packet Buffer Allocation - RW */
 #define E1000_PBS      0x01008  /* Packet Buffer Size */
 #define E1000_EEMNGCTL 0x01010  /* MNG EEprom Control */
+#define E1000_EEMNGCTL_I210 0x12030  /* MNG EEprom Control */
 #define E1000_EEARBC_I210 0x12024  /* EEPROM Auto Read Bus Control */
 #define E1000_EEWR     0x0102C  /* EEPROM Write Register - RW */
 #define E1000_I2CCMD   0x01028  /* SFPI2C Command Register - RW */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/intel/igb/igb.h linux-libre-4.4.107-gnu/drivers/net/ethernet/intel/igb/igb.h
--- linux-libre-4.4-gnu/drivers/net/ethernet/intel/igb/igb.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/intel/igb/igb.h	2017-12-20 04:05:01.000000000 -0500
@@ -389,6 +389,8 @@ struct igb_adapter {
 	u16 link_speed;
 	u16 link_duplex;
 
+	u8 __iomem *io_addr; /* Mainly for iounmap use */
+
 	struct work_struct reset_task;
 	struct work_struct watchdog_task;
 	bool fc_autoneg;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/intel/igb/igb_main.c linux-libre-4.4.107-gnu/drivers/net/ethernet/intel/igb/igb_main.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/intel/igb/igb_main.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/intel/igb/igb_main.c	2017-12-20 04:05:01.000000000 -0500
@@ -2294,9 +2294,11 @@ static int igb_probe(struct pci_dev *pde
 	adapter->msg_enable = netif_msg_init(debug, DEFAULT_MSG_ENABLE);
 
 	err = -EIO;
-	hw->hw_addr = pci_iomap(pdev, 0, 0);
-	if (!hw->hw_addr)
+	adapter->io_addr = pci_iomap(pdev, 0, 0);
+	if (!adapter->io_addr)
 		goto err_ioremap;
+	/* hw->hw_addr can be altered, we'll use adapter->io_addr for unmap */
+	hw->hw_addr = adapter->io_addr;
 
 	netdev->netdev_ops = &igb_netdev_ops;
 	igb_set_ethtool_ops(netdev);
@@ -2656,7 +2658,7 @@ err_sw_init:
 #ifdef CONFIG_PCI_IOV
 	igb_disable_sriov(pdev);
 #endif
-	pci_iounmap(pdev, hw->hw_addr);
+	pci_iounmap(pdev, adapter->io_addr);
 err_ioremap:
 	free_netdev(netdev);
 err_alloc_etherdev:
@@ -2823,7 +2825,7 @@ static void igb_remove(struct pci_dev *p
 
 	igb_clear_interrupt_scheme(adapter);
 
-	pci_iounmap(pdev, hw->hw_addr);
+	pci_iounmap(pdev, adapter->io_addr);
 	if (hw->flash_address)
 		iounmap(hw->flash_address);
 	pci_release_selected_regions(pdev,
@@ -2856,6 +2858,13 @@ static void igb_probe_vfs(struct igb_ada
 	if ((hw->mac.type == e1000_i210) || (hw->mac.type == e1000_i211))
 		return;
 
+	/* Of the below we really only want the effect of getting
+	 * IGB_FLAG_HAS_MSIX set (if available), without which
+	 * igb_enable_sriov() has no effect.
+	 */
+	igb_set_interrupt_capability(adapter, true);
+	igb_reset_interrupt_capability(adapter);
+
 	pci_sriov_set_totalvfs(pdev, 7);
 	igb_enable_sriov(pdev, max_vfs);
 
@@ -3163,7 +3172,9 @@ static int __igb_close(struct net_device
 
 static int igb_close(struct net_device *netdev)
 {
-	return __igb_close(netdev, false);
+	if (netif_device_present(netdev))
+		return __igb_close(netdev, false);
+	return 0;
 }
 
 /**
@@ -6422,7 +6433,7 @@ static bool igb_clean_tx_irq(struct igb_
 			break;
 
 		/* prevent any other reads prior to eop_desc */
-		read_barrier_depends();
+		smp_rmb();
 
 		/* if DD is not set pending work has not been completed */
 		if (!(eop_desc->wb.status & cpu_to_le32(E1000_TXD_STAT_DD)))
@@ -7316,12 +7327,14 @@ static int __igb_shutdown(struct pci_dev
 	int retval = 0;
 #endif
 
+	rtnl_lock();
 	netif_device_detach(netdev);
 
 	if (netif_running(netdev))
 		__igb_close(netdev, true);
 
 	igb_clear_interrupt_scheme(adapter);
+	rtnl_unlock();
 
 #ifdef CONFIG_PM
 	retval = pci_save_state(pdev);
@@ -7441,16 +7454,15 @@ static int igb_resume(struct device *dev
 
 	wr32(E1000_WUS, ~0);
 
-	if (netdev->flags & IFF_UP) {
-		rtnl_lock();
+	rtnl_lock();
+	if (!err && netif_running(netdev))
 		err = __igb_open(netdev, true);
-		rtnl_unlock();
-		if (err)
-			return err;
-	}
 
-	netif_device_attach(netdev);
-	return 0;
+	if (!err)
+		netif_device_attach(netdev);
+	rtnl_unlock();
+
+	return err;
 }
 
 static int igb_runtime_idle(struct device *dev)
@@ -7649,6 +7661,11 @@ static pci_ers_result_t igb_io_slot_rese
 		pci_enable_wake(pdev, PCI_D3hot, 0);
 		pci_enable_wake(pdev, PCI_D3cold, 0);
 
+		/* In case of PCI error, adapter lose its HW address
+		 * so we should re-assign it here.
+		 */
+		hw->hw_addr = adapter->io_addr;
+
 		igb_reset(adapter);
 		wr32(E1000_WUS, ~0);
 		result = PCI_ERS_RESULT_RECOVERED;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/intel/igbvf/netdev.c linux-libre-4.4.107-gnu/drivers/net/ethernet/intel/igbvf/netdev.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/intel/igbvf/netdev.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/intel/igbvf/netdev.c	2017-12-20 04:05:01.000000000 -0500
@@ -809,7 +809,7 @@ static bool igbvf_clean_tx_irq(struct ig
 			break;
 
 		/* prevent any other reads prior to eop_desc */
-		read_barrier_depends();
+		smp_rmb();
 
 		/* if DD is not set pending work has not been completed */
 		if (!(eop_desc->wb.status & cpu_to_le32(E1000_TXD_STAT_DD)))
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/intel/ixgbe/ixgbe_lib.c linux-libre-4.4.107-gnu/drivers/net/ethernet/intel/ixgbe/ixgbe_lib.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/intel/ixgbe/ixgbe_lib.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/intel/ixgbe/ixgbe_lib.c	2017-12-20 04:05:01.000000000 -0500
@@ -307,6 +307,7 @@ static void ixgbe_cache_ring_register(st
 	ixgbe_cache_ring_rss(adapter);
 }
 
+#define IXGBE_RSS_64Q_MASK	0x3F
 #define IXGBE_RSS_16Q_MASK	0xF
 #define IXGBE_RSS_8Q_MASK	0x7
 #define IXGBE_RSS_4Q_MASK	0x3
@@ -602,6 +603,7 @@ static bool ixgbe_set_sriov_queues(struc
  **/
 static bool ixgbe_set_rss_queues(struct ixgbe_adapter *adapter)
 {
+	struct ixgbe_hw *hw = &adapter->hw;
 	struct ixgbe_ring_feature *f;
 	u16 rss_i;
 
@@ -610,7 +612,11 @@ static bool ixgbe_set_rss_queues(struct
 	rss_i = f->limit;
 
 	f->indices = rss_i;
-	f->mask = IXGBE_RSS_16Q_MASK;
+
+	if (hw->mac.type < ixgbe_mac_X550)
+		f->mask = IXGBE_RSS_16Q_MASK;
+	else
+		f->mask = IXGBE_RSS_64Q_MASK;
 
 	/* disable ATR by default, it will be configured below */
 	adapter->flags &= ~IXGBE_FLAG_FDIR_HASH_CAPABLE;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c linux-libre-4.4.107-gnu/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c	2017-12-20 04:05:01.000000000 -0500
@@ -1114,7 +1114,7 @@ static bool ixgbe_clean_tx_irq(struct ix
 			break;
 
 		/* prevent any other reads prior to eop_desc */
-		read_barrier_depends();
+		smp_rmb();
 
 		/* if DD is not set pending work has not been completed */
 		if (!(eop_desc->wb.status & cpu_to_le32(IXGBE_TXD_STAT_DD)))
@@ -2786,7 +2786,8 @@ int ixgbe_poll(struct napi_struct *napi,
 	ixgbe_for_each_ring(ring, q_vector->tx)
 		clean_complete &= !!ixgbe_clean_tx_irq(q_vector, ring);
 
-	if (!ixgbe_qv_lock_napi(q_vector))
+	/* Exit if we are called by netpoll or busy polling is active */
+	if ((budget <= 0) || !ixgbe_qv_lock_napi(q_vector))
 		return budget;
 
 	/* attempt to distribute budget to each queue fairly, but don't allow
@@ -5877,7 +5878,8 @@ static int ixgbe_close(struct net_device
 
 	ixgbe_ptp_stop(adapter);
 
-	ixgbe_close_suspend(adapter);
+	if (netif_device_present(netdev))
+		ixgbe_close_suspend(adapter);
 
 	ixgbe_fdir_filter_exit(adapter);
 
@@ -5922,14 +5924,12 @@ static int ixgbe_resume(struct pci_dev *
 	if (!err && netif_running(netdev))
 		err = ixgbe_open(netdev);
 
-	rtnl_unlock();
 
-	if (err)
-		return err;
-
-	netif_device_attach(netdev);
+	if (!err)
+		netif_device_attach(netdev);
+	rtnl_unlock();
 
-	return 0;
+	return err;
 }
 #endif /* CONFIG_PM */
 
@@ -5944,14 +5944,14 @@ static int __ixgbe_shutdown(struct pci_d
 	int retval = 0;
 #endif
 
+	rtnl_lock();
 	netif_device_detach(netdev);
 
-	rtnl_lock();
 	if (netif_running(netdev))
 		ixgbe_close_suspend(adapter);
-	rtnl_unlock();
 
 	ixgbe_clear_interrupt_scheme(adapter);
+	rtnl_unlock();
 
 #ifdef CONFIG_PM
 	retval = pci_save_state(pdev);
@@ -9220,7 +9220,7 @@ skip_bad_vf_detection:
 	}
 
 	if (netif_running(netdev))
-		ixgbe_down(adapter);
+		ixgbe_close_suspend(adapter);
 
 	if (!test_and_set_bit(__IXGBE_DISABLED, &adapter->state))
 		pci_disable_device(pdev);
@@ -9290,10 +9290,12 @@ static void ixgbe_io_resume(struct pci_d
 	}
 
 #endif
+	rtnl_lock();
 	if (netif_running(netdev))
-		ixgbe_up(adapter);
+		ixgbe_open(netdev);
 
 	netif_device_attach(netdev);
+	rtnl_unlock();
 }
 
 static const struct pci_error_handlers ixgbe_err_handler = {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c linux-libre-4.4.107-gnu/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c	2017-12-20 04:05:01.000000000 -0500
@@ -113,7 +113,7 @@ static s32 ixgbe_read_i2c_combined_gener
 					       u16 reg, u16 *val, bool lock)
 {
 	u32 swfw_mask = hw->phy.phy_semaphore_mask;
-	int max_retry = 10;
+	int max_retry = 3;
 	int retry = 0;
 	u8 csum_byte;
 	u8 high_bits;
@@ -1764,6 +1764,8 @@ static s32 ixgbe_read_i2c_byte_generic_i
 	u32 swfw_mask = hw->phy.phy_semaphore_mask;
 	bool nack = true;
 
+	if (hw->mac.type >= ixgbe_mac_X550)
+		max_retry = 3;
 	if (ixgbe_is_sfp_probe(hw, byte_offset, dev_addr))
 		max_retry = IXGBE_SFP_DETECT_RETRIES;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c linux-libre-4.4.107-gnu/drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c	2017-12-20 04:05:01.000000000 -0500
@@ -1643,8 +1643,6 @@ static s32 ixgbe_setup_kr_speed_x550em(s
 		return status;
 
 	reg_val |= IXGBE_KRM_LINK_CTRL_1_TETH_AN_ENABLE;
-	reg_val &= ~(IXGBE_KRM_LINK_CTRL_1_TETH_AN_FEC_REQ |
-		     IXGBE_KRM_LINK_CTRL_1_TETH_AN_CAP_FEC);
 	reg_val &= ~(IXGBE_KRM_LINK_CTRL_1_TETH_AN_CAP_KR |
 		     IXGBE_KRM_LINK_CTRL_1_TETH_AN_CAP_KX);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c linux-libre-4.4.107-gnu/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c	2017-12-20 04:05:01.000000000 -0500
@@ -312,7 +312,7 @@ static bool ixgbevf_clean_tx_irq(struct
 			break;
 
 		/* prevent any other reads prior to eop_desc */
-		read_barrier_depends();
+		smp_rmb();
 
 		/* if DD is not set pending work has not been completed */
 		if (!(eop_desc->wb.status & cpu_to_le32(IXGBE_TXD_STAT_DD)))
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/jme.c linux-libre-4.4.107-gnu/drivers/net/ethernet/jme.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/jme.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/jme.c	2017-12-20 04:05:01.000000000 -0500
@@ -270,11 +270,17 @@ jme_reset_mac_processor(struct jme_adapt
 }
 
 static inline void
-jme_clear_pm(struct jme_adapter *jme)
+jme_clear_pm_enable_wol(struct jme_adapter *jme)
 {
 	jwrite32(jme, JME_PMCS, PMCS_STMASK | jme->reg_pmcs);
 }
 
+static inline void
+jme_clear_pm_disable_wol(struct jme_adapter *jme)
+{
+	jwrite32(jme, JME_PMCS, PMCS_STMASK);
+}
+
 static int
 jme_reload_eeprom(struct jme_adapter *jme)
 {
@@ -1853,7 +1859,7 @@ jme_open(struct net_device *netdev)
 	struct jme_adapter *jme = netdev_priv(netdev);
 	int rc;
 
-	jme_clear_pm(jme);
+	jme_clear_pm_disable_wol(jme);
 	JME_NAPI_ENABLE(jme);
 
 	tasklet_init(&jme->linkch_task, jme_link_change_tasklet,
@@ -1925,11 +1931,11 @@ jme_wait_link(struct jme_adapter *jme)
 static void
 jme_powersave_phy(struct jme_adapter *jme)
 {
-	if (jme->reg_pmcs) {
+	if (jme->reg_pmcs && device_may_wakeup(&jme->pdev->dev)) {
 		jme_set_100m_half(jme);
 		if (jme->reg_pmcs & (PMCS_LFEN | PMCS_LREN))
 			jme_wait_link(jme);
-		jme_clear_pm(jme);
+		jme_clear_pm_enable_wol(jme);
 	} else {
 		jme_phy_off(jme);
 	}
@@ -2646,9 +2652,6 @@ jme_set_wol(struct net_device *netdev,
 	if (wol->wolopts & WAKE_MAGIC)
 		jme->reg_pmcs |= PMCS_MFEN;
 
-	jwrite32(jme, JME_PMCS, jme->reg_pmcs);
-	device_set_wakeup_enable(&jme->pdev->dev, !!(jme->reg_pmcs));
-
 	return 0;
 }
 
@@ -3172,8 +3175,8 @@ jme_init_one(struct pci_dev *pdev,
 	jme->mii_if.mdio_read = jme_mdio_read;
 	jme->mii_if.mdio_write = jme_mdio_write;
 
-	jme_clear_pm(jme);
-	device_set_wakeup_enable(&pdev->dev, true);
+	jme_clear_pm_disable_wol(jme);
+	device_init_wakeup(&pdev->dev, true);
 
 	jme_set_phyfifo_5level(jme);
 	jme->pcirev = pdev->revision;
@@ -3304,7 +3307,7 @@ jme_resume(struct device *dev)
 	if (!netif_running(netdev))
 		return 0;
 
-	jme_clear_pm(jme);
+	jme_clear_pm_disable_wol(jme);
 	jme_phy_on(jme);
 	if (test_bit(JME_FLAG_SSET, &jme->flags))
 		jme_set_settings(netdev, &jme->old_ecmd);
@@ -3312,13 +3315,14 @@ jme_resume(struct device *dev)
 		jme_reset_phy_processor(jme);
 	jme_phy_calibration(jme);
 	jme_phy_setEA(jme);
-	jme_start_irq(jme);
 	netif_device_attach(netdev);
 
 	atomic_inc(&jme->link_changing);
 
 	jme_reset_link(jme);
 
+	jme_start_irq(jme);
+
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/korina.c linux-libre-4.4.107-gnu/drivers/net/ethernet/korina.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/korina.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/korina.c	2017-12-20 04:05:01.000000000 -0500
@@ -900,10 +900,10 @@ static void korina_restart_task(struct w
 				DMA_STAT_DONE | DMA_STAT_HALT | DMA_STAT_ERR,
 				&lp->rx_dma_regs->dmasm);
 
-	korina_free_ring(dev);
-
 	napi_disable(&lp->napi);
 
+	korina_free_ring(dev);
+
 	if (korina_init(dev) < 0) {
 		printk(KERN_ERR "%s: cannot restart device\n", dev->name);
 		return;
@@ -1064,12 +1064,12 @@ static int korina_close(struct net_devic
 	tmp = tmp | DMA_STAT_DONE | DMA_STAT_HALT | DMA_STAT_ERR;
 	writel(tmp, &lp->rx_dma_regs->dmasm);
 
-	korina_free_ring(dev);
-
 	napi_disable(&lp->napi);
 
 	cancel_work_sync(&lp->restart_task);
 
+	korina_free_ring(dev);
+
 	free_irq(lp->rx_irq, dev);
 	free_irq(lp->tx_irq, dev);
 	free_irq(lp->ovr_irq, dev);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/marvell/mvneta.c linux-libre-4.4.107-gnu/drivers/net/ethernet/marvell/mvneta.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/marvell/mvneta.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/marvell/mvneta.c	2017-12-20 04:05:01.000000000 -0500
@@ -226,7 +226,7 @@
 /* Various constants */
 
 /* Coalescing */
-#define MVNETA_TXDONE_COAL_PKTS		1
+#define MVNETA_TXDONE_COAL_PKTS		0	/* interrupt per packet */
 #define MVNETA_RX_COAL_PKTS		32
 #define MVNETA_RX_COAL_USEC		100
 
@@ -2446,7 +2446,7 @@ static void mvneta_start_dev(struct mvne
 	mvneta_port_enable(pp);
 
 	/* Enable polling on the port */
-	for_each_present_cpu(cpu) {
+	for_each_online_cpu(cpu) {
 		struct mvneta_pcpu_port *port = per_cpu_ptr(pp->ports, cpu);
 
 		napi_enable(&port->napi);
@@ -2472,7 +2472,7 @@ static void mvneta_stop_dev(struct mvnet
 
 	phy_stop(pp->phy_dev);
 
-	for_each_present_cpu(cpu) {
+	for_each_online_cpu(cpu) {
 		struct mvneta_pcpu_port *port = per_cpu_ptr(pp->ports, cpu);
 
 		napi_disable(&port->napi);
@@ -2902,13 +2902,11 @@ err_cleanup_rxqs:
 static int mvneta_stop(struct net_device *dev)
 {
 	struct mvneta_port *pp = netdev_priv(dev);
-	int cpu;
 
 	mvneta_stop_dev(pp);
 	mvneta_mdio_remove(pp);
 	unregister_cpu_notifier(&pp->cpu_notifier);
-	for_each_present_cpu(cpu)
-		smp_call_function_single(cpu, mvneta_percpu_disable, pp, true);
+	on_each_cpu(mvneta_percpu_disable, pp, true);
 	free_percpu_irq(dev->irq, pp->ports);
 	mvneta_cleanup_rxqs(pp);
 	mvneta_cleanup_txqs(pp);
@@ -3404,7 +3402,7 @@ static int mvneta_probe(struct platform_
 	dev->features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO;
 	dev->hw_features |= dev->features;
 	dev->vlan_features |= dev->features;
-	dev->priv_flags |= IFF_UNICAST_FLT;
+	dev->priv_flags |= IFF_UNICAST_FLT | IFF_LIVE_ADDR_CHANGE;
 	dev->gso_max_segs = MVNETA_MAX_TSO_SEGS;
 
 	err = register_netdev(dev);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/marvell/mvpp2.c linux-libre-4.4.107-gnu/drivers/net/ethernet/marvell/mvpp2.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/marvell/mvpp2.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/marvell/mvpp2.c	2017-12-20 04:05:01.000000000 -0500
@@ -772,6 +772,17 @@ struct mvpp2_rx_desc {
 	u32 reserved8;
 };
 
+struct mvpp2_txq_pcpu_buf {
+	/* Transmitted SKB */
+	struct sk_buff *skb;
+
+	/* Physical address of transmitted buffer */
+	dma_addr_t phys;
+
+	/* Size transmitted */
+	size_t size;
+};
+
 /* Per-CPU Tx queue control */
 struct mvpp2_txq_pcpu {
 	int cpu;
@@ -787,11 +798,8 @@ struct mvpp2_txq_pcpu {
 	/* Number of Tx DMA descriptors reserved for each CPU */
 	int reserved_num;
 
-	/* Array of transmitted skb */
-	struct sk_buff **tx_skb;
-
-	/* Array of transmitted buffers' physical addresses */
-	dma_addr_t *tx_buffs;
+	/* Infos about transmitted buffers */
+	struct mvpp2_txq_pcpu_buf *buffs;
 
 	/* Index of last TX DMA descriptor that was inserted */
 	int txq_put_index;
@@ -981,10 +989,11 @@ static void mvpp2_txq_inc_put(struct mvp
 			      struct sk_buff *skb,
 			      struct mvpp2_tx_desc *tx_desc)
 {
-	txq_pcpu->tx_skb[txq_pcpu->txq_put_index] = skb;
-	if (skb)
-		txq_pcpu->tx_buffs[txq_pcpu->txq_put_index] =
-							 tx_desc->buf_phys_addr;
+	struct mvpp2_txq_pcpu_buf *tx_buf =
+		txq_pcpu->buffs + txq_pcpu->txq_put_index;
+	tx_buf->skb = skb;
+	tx_buf->size = tx_desc->data_size;
+	tx_buf->phys = tx_desc->buf_phys_addr + tx_desc->packet_offset;
 	txq_pcpu->txq_put_index++;
 	if (txq_pcpu->txq_put_index == txq_pcpu->size)
 		txq_pcpu->txq_put_index = 0;
@@ -4403,17 +4412,15 @@ static void mvpp2_txq_bufs_free(struct m
 	int i;
 
 	for (i = 0; i < num; i++) {
-		dma_addr_t buf_phys_addr =
-				    txq_pcpu->tx_buffs[txq_pcpu->txq_get_index];
-		struct sk_buff *skb = txq_pcpu->tx_skb[txq_pcpu->txq_get_index];
+		struct mvpp2_txq_pcpu_buf *tx_buf =
+			txq_pcpu->buffs + txq_pcpu->txq_get_index;
 
-		mvpp2_txq_inc_get(txq_pcpu);
+		dma_unmap_single(port->dev->dev.parent, tx_buf->phys,
+				 tx_buf->size, DMA_TO_DEVICE);
+		if (tx_buf->skb)
+			dev_kfree_skb_any(tx_buf->skb);
 
-		dma_unmap_single(port->dev->dev.parent, buf_phys_addr,
-				 skb_headlen(skb), DMA_TO_DEVICE);
-		if (!skb)
-			continue;
-		dev_kfree_skb_any(skb);
+		mvpp2_txq_inc_get(txq_pcpu);
 	}
 }
 
@@ -4664,15 +4671,10 @@ static int mvpp2_txq_init(struct mvpp2_p
 	for_each_present_cpu(cpu) {
 		txq_pcpu = per_cpu_ptr(txq->pcpu, cpu);
 		txq_pcpu->size = txq->size;
-		txq_pcpu->tx_skb = kmalloc(txq_pcpu->size *
-					   sizeof(*txq_pcpu->tx_skb),
-					   GFP_KERNEL);
-		if (!txq_pcpu->tx_skb)
-			goto error;
-
-		txq_pcpu->tx_buffs = kmalloc(txq_pcpu->size *
-					     sizeof(dma_addr_t), GFP_KERNEL);
-		if (!txq_pcpu->tx_buffs)
+		txq_pcpu->buffs = kmalloc(txq_pcpu->size *
+					  sizeof(struct mvpp2_txq_pcpu_buf),
+					  GFP_KERNEL);
+		if (!txq_pcpu->buffs)
 			goto error;
 
 		txq_pcpu->count = 0;
@@ -4686,8 +4688,7 @@ static int mvpp2_txq_init(struct mvpp2_p
 error:
 	for_each_present_cpu(cpu) {
 		txq_pcpu = per_cpu_ptr(txq->pcpu, cpu);
-		kfree(txq_pcpu->tx_skb);
-		kfree(txq_pcpu->tx_buffs);
+		kfree(txq_pcpu->buffs);
 	}
 
 	dma_free_coherent(port->dev->dev.parent,
@@ -4706,8 +4707,7 @@ static void mvpp2_txq_deinit(struct mvpp
 
 	for_each_present_cpu(cpu) {
 		txq_pcpu = per_cpu_ptr(txq->pcpu, cpu);
-		kfree(txq_pcpu->tx_skb);
-		kfree(txq_pcpu->tx_buffs);
+		kfree(txq_pcpu->buffs);
 	}
 
 	if (txq->descs)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/marvell/sky2.c linux-libre-4.4.107-gnu/drivers/net/ethernet/marvell/sky2.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/marvell/sky2.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/marvell/sky2.c	2017-12-20 04:05:01.000000000 -0500
@@ -5220,6 +5220,19 @@ static SIMPLE_DEV_PM_OPS(sky2_pm_ops, sk
 
 static void sky2_shutdown(struct pci_dev *pdev)
 {
+	struct sky2_hw *hw = pci_get_drvdata(pdev);
+	int port;
+
+	for (port = 0; port < hw->ports; port++) {
+		struct net_device *ndev = hw->dev[port];
+
+		rtnl_lock();
+		if (netif_running(ndev)) {
+			dev_close(ndev);
+			netif_device_detach(ndev);
+		}
+		rtnl_unlock();
+	}
 	sky2_suspend(&pdev->dev);
 	pci_wake_from_d3(pdev, device_may_wakeup(&pdev->dev));
 	pci_set_power_state(pdev, PCI_D3hot);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/mellanox/mlx4/catas.c linux-libre-4.4.107-gnu/drivers/net/ethernet/mellanox/mlx4/catas.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/mellanox/mlx4/catas.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/mellanox/mlx4/catas.c	2017-12-20 04:05:01.000000000 -0500
@@ -158,7 +158,7 @@ static int mlx4_reset_slave(struct mlx4_
 	return -ETIMEDOUT;
 }
 
-static int mlx4_comm_internal_err(u32 slave_read)
+int mlx4_comm_internal_err(u32 slave_read)
 {
 	return (u32)COMM_CHAN_EVENT_INTERNAL_ERR ==
 		(slave_read & (u32)COMM_CHAN_EVENT_INTERNAL_ERR) ? 1 : 0;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/mellanox/mlx4/cmd.c linux-libre-4.4.107-gnu/drivers/net/ethernet/mellanox/mlx4/cmd.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/mellanox/mlx4/cmd.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/mellanox/mlx4/cmd.c	2017-12-20 04:05:01.000000000 -0500
@@ -2278,6 +2278,17 @@ static int sync_toggles(struct mlx4_dev
 		rd_toggle = swab32(readl(&priv->mfunc.comm->slave_read));
 		if (wr_toggle == 0xffffffff || rd_toggle == 0xffffffff) {
 			/* PCI might be offline */
+
+			/* If device removal has been requested,
+			 * do not continue retrying.
+			 */
+			if (dev->persist->interface_state &
+			    MLX4_INTERFACE_STATE_NOWAIT) {
+				mlx4_warn(dev,
+					  "communication channel is offline\n");
+				return -EIO;
+			}
+
 			msleep(100);
 			wr_toggle = swab32(readl(&priv->mfunc.comm->
 					   slave_write));
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/mellanox/mlx4/cq.c linux-libre-4.4.107-gnu/drivers/net/ethernet/mellanox/mlx4/cq.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/mellanox/mlx4/cq.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/mellanox/mlx4/cq.c	2017-12-20 04:05:01.000000000 -0500
@@ -101,13 +101,19 @@ void mlx4_cq_completion(struct mlx4_dev
 {
 	struct mlx4_cq *cq;
 
+	rcu_read_lock();
 	cq = radix_tree_lookup(&mlx4_priv(dev)->cq_table.tree,
 			       cqn & (dev->caps.num_cqs - 1));
+	rcu_read_unlock();
+
 	if (!cq) {
 		mlx4_dbg(dev, "Completion event for bogus CQ %08x\n", cqn);
 		return;
 	}
 
+	/* Acessing the CQ outside of rcu_read_lock is safe, because
+	 * the CQ is freed only after interrupt handling is completed.
+	 */
 	++cq->arm_sn;
 
 	cq->comp(cq);
@@ -118,23 +124,19 @@ void mlx4_cq_event(struct mlx4_dev *dev,
 	struct mlx4_cq_table *cq_table = &mlx4_priv(dev)->cq_table;
 	struct mlx4_cq *cq;
 
-	spin_lock(&cq_table->lock);
-
+	rcu_read_lock();
 	cq = radix_tree_lookup(&cq_table->tree, cqn & (dev->caps.num_cqs - 1));
-	if (cq)
-		atomic_inc(&cq->refcount);
-
-	spin_unlock(&cq_table->lock);
+	rcu_read_unlock();
 
 	if (!cq) {
-		mlx4_warn(dev, "Async event for bogus CQ %08x\n", cqn);
+		mlx4_dbg(dev, "Async event for bogus CQ %08x\n", cqn);
 		return;
 	}
 
+	/* Acessing the CQ outside of rcu_read_lock is safe, because
+	 * the CQ is freed only after interrupt handling is completed.
+	 */
 	cq->event(cq, event_type);
-
-	if (atomic_dec_and_test(&cq->refcount))
-		complete(&cq->free);
 }
 
 static int mlx4_SW2HW_CQ(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox,
@@ -301,9 +303,9 @@ int mlx4_cq_alloc(struct mlx4_dev *dev,
 	if (err)
 		return err;
 
-	spin_lock_irq(&cq_table->lock);
+	spin_lock(&cq_table->lock);
 	err = radix_tree_insert(&cq_table->tree, cq->cqn, cq);
-	spin_unlock_irq(&cq_table->lock);
+	spin_unlock(&cq_table->lock);
 	if (err)
 		goto err_icm;
 
@@ -347,9 +349,9 @@ int mlx4_cq_alloc(struct mlx4_dev *dev,
 	return 0;
 
 err_radix:
-	spin_lock_irq(&cq_table->lock);
+	spin_lock(&cq_table->lock);
 	radix_tree_delete(&cq_table->tree, cq->cqn);
-	spin_unlock_irq(&cq_table->lock);
+	spin_unlock(&cq_table->lock);
 
 err_icm:
 	mlx4_cq_free_icm(dev, cq->cqn);
@@ -368,15 +370,15 @@ void mlx4_cq_free(struct mlx4_dev *dev,
 	if (err)
 		mlx4_warn(dev, "HW2SW_CQ failed (%d) for CQN %06x\n", err, cq->cqn);
 
+	spin_lock(&cq_table->lock);
+	radix_tree_delete(&cq_table->tree, cq->cqn);
+	spin_unlock(&cq_table->lock);
+
 	synchronize_irq(priv->eq_table.eq[MLX4_CQ_TO_EQ_VECTOR(cq->vector)].irq);
 	if (priv->eq_table.eq[MLX4_CQ_TO_EQ_VECTOR(cq->vector)].irq !=
 	    priv->eq_table.eq[MLX4_EQ_ASYNC].irq)
 		synchronize_irq(priv->eq_table.eq[MLX4_EQ_ASYNC].irq);
 
-	spin_lock_irq(&cq_table->lock);
-	radix_tree_delete(&cq_table->tree, cq->cqn);
-	spin_unlock_irq(&cq_table->lock);
-
 	if (atomic_dec_and_test(&cq->refcount))
 		complete(&cq->free);
 	wait_for_completion(&cq->free);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/mellanox/mlx4/en_clock.c linux-libre-4.4.107-gnu/drivers/net/ethernet/mellanox/mlx4/en_clock.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/mellanox/mlx4/en_clock.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/mellanox/mlx4/en_clock.c	2017-12-20 04:05:01.000000000 -0500
@@ -88,10 +88,17 @@ void mlx4_en_remove_timestamp(struct mlx
 	}
 }
 
+#define MLX4_EN_WRAP_AROUND_SEC	10UL
+/* By scheduling the overflow check every 5 seconds, we have a reasonably
+ * good chance we wont miss a wrap around.
+ * TOTO: Use a timer instead of a work queue to increase the guarantee.
+ */
+#define MLX4_EN_OVERFLOW_PERIOD (MLX4_EN_WRAP_AROUND_SEC * HZ / 2)
+
 void mlx4_en_ptp_overflow_check(struct mlx4_en_dev *mdev)
 {
 	bool timeout = time_is_before_jiffies(mdev->last_overflow_check +
-					      mdev->overflow_period);
+					      MLX4_EN_OVERFLOW_PERIOD);
 	unsigned long flags;
 
 	if (timeout) {
@@ -236,11 +243,27 @@ static const struct ptp_clock_info mlx4_
 	.enable		= mlx4_en_phc_enable,
 };
 
+
+/* This function calculates the max shift that enables the user range
+ * of MLX4_EN_WRAP_AROUND_SEC values in the cycles register.
+ */
+static u32 freq_to_shift(u16 freq)
+{
+	u32 freq_khz = freq * 1000;
+	u64 max_val_cycles = freq_khz * 1000 * MLX4_EN_WRAP_AROUND_SEC;
+	u64 max_val_cycles_rounded = is_power_of_2(max_val_cycles + 1) ?
+		max_val_cycles : roundup_pow_of_two(max_val_cycles) - 1;
+	/* calculate max possible multiplier in order to fit in 64bit */
+	u64 max_mul = div_u64(0xffffffffffffffffULL, max_val_cycles_rounded);
+
+	/* This comes from the reverse of clocksource_khz2mult */
+	return ilog2(div_u64(max_mul * freq_khz, 1000000));
+}
+
 void mlx4_en_init_timestamp(struct mlx4_en_dev *mdev)
 {
 	struct mlx4_dev *dev = mdev->dev;
 	unsigned long flags;
-	u64 ns, zero = 0;
 
 	/* mlx4_en_init_timestamp is called for each netdev.
 	 * mdev->ptp_clock is common for all ports, skip initialization if
@@ -254,12 +277,7 @@ void mlx4_en_init_timestamp(struct mlx4_
 	memset(&mdev->cycles, 0, sizeof(mdev->cycles));
 	mdev->cycles.read = mlx4_en_read_clock;
 	mdev->cycles.mask = CLOCKSOURCE_MASK(48);
-	/* Using shift to make calculation more accurate. Since current HW
-	 * clock frequency is 427 MHz, and cycles are given using a 48 bits
-	 * register, the biggest shift when calculating using u64, is 14
-	 * (max_cycles * multiplier < 2^64)
-	 */
-	mdev->cycles.shift = 14;
+	mdev->cycles.shift = freq_to_shift(dev->caps.hca_core_clock);
 	mdev->cycles.mult =
 		clocksource_khz2mult(1000 * dev->caps.hca_core_clock, mdev->cycles.shift);
 	mdev->nominal_c_mult = mdev->cycles.mult;
@@ -269,13 +287,6 @@ void mlx4_en_init_timestamp(struct mlx4_
 			 ktime_to_ns(ktime_get_real()));
 	write_unlock_irqrestore(&mdev->clock_lock, flags);
 
-	/* Calculate period in seconds to call the overflow watchdog - to make
-	 * sure counter is checked at least once every wrap around.
-	 */
-	ns = cyclecounter_cyc2ns(&mdev->cycles, mdev->cycles.mask, zero, &zero);
-	do_div(ns, NSEC_PER_SEC / 2 / HZ);
-	mdev->overflow_period = ns;
-
 	/* Configure the PHC */
 	mdev->ptp_clock_info = mlx4_en_ptp_clock_info;
 	snprintf(mdev->ptp_clock_info.name, 16, "mlx4 ptp");
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/mellanox/mlx4/en_netdev.c linux-libre-4.4.107-gnu/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/mellanox/mlx4/en_netdev.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/mellanox/mlx4/en_netdev.c	2017-12-20 04:05:01.000000000 -0500
@@ -2282,7 +2282,7 @@ static int mlx4_en_set_vf_mac(struct net
 	struct mlx4_en_dev *mdev = en_priv->mdev;
 	u64 mac_u64 = mlx4_mac_to_u64(mac);
 
-	if (!is_valid_ether_addr(mac))
+	if (is_multicast_ether_addr(mac))
 		return -EINVAL;
 
 	return mlx4_set_vf_mac(mdev->dev, en_priv->port, queue, mac_u64);
@@ -2381,8 +2381,6 @@ out:
 	/* set offloads */
 	priv->dev->hw_enc_features |= NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
 				      NETIF_F_TSO | NETIF_F_GSO_UDP_TUNNEL;
-	priv->dev->hw_features |= NETIF_F_GSO_UDP_TUNNEL;
-	priv->dev->features    |= NETIF_F_GSO_UDP_TUNNEL;
 }
 
 static void mlx4_en_del_vxlan_offloads(struct work_struct *work)
@@ -2393,8 +2391,6 @@ static void mlx4_en_del_vxlan_offloads(s
 	/* unset offloads */
 	priv->dev->hw_enc_features &= ~(NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
 				      NETIF_F_TSO | NETIF_F_GSO_UDP_TUNNEL);
-	priv->dev->hw_features &= ~NETIF_F_GSO_UDP_TUNNEL;
-	priv->dev->features    &= ~NETIF_F_GSO_UDP_TUNNEL;
 
 	ret = mlx4_SET_PORT_VXLAN(priv->mdev->dev, priv->port,
 				  VXLAN_STEER_BY_OUTER_MAC, 0);
@@ -3020,6 +3016,11 @@ int mlx4_en_init_netdev(struct mlx4_en_d
 		priv->rss_hash_fn = ETH_RSS_HASH_TOP;
 	}
 
+	if (mdev->dev->caps.tunnel_offload_mode == MLX4_TUNNEL_OFFLOAD_MODE_VXLAN) {
+		dev->hw_features |= NETIF_F_GSO_UDP_TUNNEL;
+		dev->features    |= NETIF_F_GSO_UDP_TUNNEL;
+	}
+
 	mdev->pndev[port] = dev;
 	mdev->upper[port] = NULL;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/mellanox/mlx4/en_port.c linux-libre-4.4.107-gnu/drivers/net/ethernet/mellanox/mlx4/en_port.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/mellanox/mlx4/en_port.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/mellanox/mlx4/en_port.c	2017-12-20 04:05:01.000000000 -0500
@@ -238,11 +238,11 @@ int mlx4_en_DUMP_ETH_STATS(struct mlx4_e
 	stats->collisions = 0;
 	stats->rx_dropped = be32_to_cpu(mlx4_en_stats->RDROP);
 	stats->rx_length_errors = be32_to_cpu(mlx4_en_stats->RdropLength);
-	stats->rx_over_errors = be32_to_cpu(mlx4_en_stats->RdropOvflw);
+	stats->rx_over_errors = 0;
 	stats->rx_crc_errors = be32_to_cpu(mlx4_en_stats->RCRC);
 	stats->rx_frame_errors = 0;
 	stats->rx_fifo_errors = be32_to_cpu(mlx4_en_stats->RdropOvflw);
-	stats->rx_missed_errors = be32_to_cpu(mlx4_en_stats->RdropOvflw);
+	stats->rx_missed_errors = 0;
 	stats->tx_aborted_errors = 0;
 	stats->tx_carrier_errors = 0;
 	stats->tx_fifo_errors = 0;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/mellanox/mlx4/en_rx.c linux-libre-4.4.107-gnu/drivers/net/ethernet/mellanox/mlx4/en_rx.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/mellanox/mlx4/en_rx.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/mellanox/mlx4/en_rx.c	2017-12-20 04:05:01.000000000 -0500
@@ -439,8 +439,14 @@ int mlx4_en_activate_rx_rings(struct mlx
 		ring->cqn = priv->rx_cq[ring_ind]->mcq.cqn;
 
 		ring->stride = stride;
-		if (ring->stride <= TXBB_SIZE)
+		if (ring->stride <= TXBB_SIZE) {
+			/* Stamp first unused send wqe */
+			__be32 *ptr = (__be32 *)ring->buf;
+			__be32 stamp = cpu_to_be32(1 << STAMP_SHIFT);
+			*ptr = stamp;
+			/* Move pointer to start of rx section */
 			ring->buf += TXBB_SIZE;
+		}
 
 		ring->log_stride = ffs(ring->stride) - 1;
 		ring->buf_size = ring->size * ring->stride;
@@ -502,8 +508,11 @@ void mlx4_en_recover_from_oom(struct mlx
 		return;
 
 	for (ring = 0; ring < priv->rx_ring_num; ring++) {
-		if (mlx4_en_is_ring_empty(priv->rx_ring[ring]))
+		if (mlx4_en_is_ring_empty(priv->rx_ring[ring])) {
+			local_bh_disable();
 			napi_reschedule(&priv->rx_cq[ring]->napi);
+			local_bh_enable();
+		}
 	}
 }
 
@@ -704,7 +713,7 @@ static int get_fixed_ipv6_csum(__wsum hw
 
 	if (ipv6h->nexthdr == IPPROTO_FRAGMENT || ipv6h->nexthdr == IPPROTO_HOPOPTS)
 		return -1;
-	hw_checksum = csum_add(hw_checksum, (__force __wsum)(ipv6h->nexthdr << 8));
+	hw_checksum = csum_add(hw_checksum, (__force __wsum)htons(ipv6h->nexthdr));
 
 	csum_pseudo_hdr = csum_partial(&ipv6h->saddr,
 				       sizeof(ipv6h->saddr) + sizeof(ipv6h->daddr), 0);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/mellanox/mlx4/en_tx.c linux-libre-4.4.107-gnu/drivers/net/ethernet/mellanox/mlx4/en_tx.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/mellanox/mlx4/en_tx.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/mellanox/mlx4/en_tx.c	2017-12-20 04:05:01.000000000 -0500
@@ -400,7 +400,6 @@ static bool mlx4_en_process_tx_cq(struct
 	u32 packets = 0;
 	u32 bytes = 0;
 	int factor = priv->cqe_factor;
-	u64 timestamp = 0;
 	int done = 0;
 	int budget = priv->tx_work_limit;
 	u32 last_nr_txbb;
@@ -440,9 +439,12 @@ static bool mlx4_en_process_tx_cq(struct
 		new_index = be16_to_cpu(cqe->wqe_index) & size_mask;
 
 		do {
+			u64 timestamp = 0;
+
 			txbbs_skipped += last_nr_txbb;
 			ring_index = (ring_index + last_nr_txbb) & size_mask;
-			if (ring->tx_info[ring_index].ts_requested)
+
+			if (unlikely(ring->tx_info[ring_index].ts_requested))
 				timestamp = mlx4_en_get_cqe_ts(cqe);
 
 			/* free next descriptor */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/mellanox/mlx4/eq.c linux-libre-4.4.107-gnu/drivers/net/ethernet/mellanox/mlx4/eq.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/mellanox/mlx4/eq.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/mellanox/mlx4/eq.c	2017-12-20 04:05:01.000000000 -0500
@@ -542,8 +542,9 @@ static int mlx4_eq_int(struct mlx4_dev *
 			break;
 
 		case MLX4_EVENT_TYPE_SRQ_LIMIT:
-			mlx4_dbg(dev, "%s: MLX4_EVENT_TYPE_SRQ_LIMIT\n",
-				 __func__);
+			mlx4_dbg(dev, "%s: MLX4_EVENT_TYPE_SRQ_LIMIT. srq_no=0x%x, eq 0x%x\n",
+				 __func__, be32_to_cpu(eqe->event.srq.srqn),
+				 eq->eqn);
 		case MLX4_EVENT_TYPE_SRQ_CATAS_ERROR:
 			if (mlx4_is_master(dev)) {
 				/* forward only to slave owning the SRQ */
@@ -558,15 +559,19 @@ static int mlx4_eq_int(struct mlx4_dev *
 						  eq->eqn, eq->cons_index, ret);
 					break;
 				}
-				mlx4_warn(dev, "%s: slave:%d, srq_no:0x%x, event: %02x(%02x)\n",
-					  __func__, slave,
-					  be32_to_cpu(eqe->event.srq.srqn),
-					  eqe->type, eqe->subtype);
+				if (eqe->type ==
+				    MLX4_EVENT_TYPE_SRQ_CATAS_ERROR)
+					mlx4_warn(dev, "%s: slave:%d, srq_no:0x%x, event: %02x(%02x)\n",
+						  __func__, slave,
+						  be32_to_cpu(eqe->event.srq.srqn),
+						  eqe->type, eqe->subtype);
 
 				if (!ret && slave != dev->caps.function) {
-					mlx4_warn(dev, "%s: sending event %02x(%02x) to slave:%d\n",
-						  __func__, eqe->type,
-						  eqe->subtype, slave);
+					if (eqe->type ==
+					    MLX4_EVENT_TYPE_SRQ_CATAS_ERROR)
+						mlx4_warn(dev, "%s: sending event %02x(%02x) to slave:%d\n",
+							  __func__, eqe->type,
+							  eqe->subtype, slave);
 					mlx4_slave_event(dev, slave, eqe);
 					break;
 				}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/mellanox/mlx4/icm.c linux-libre-4.4.107-gnu/drivers/net/ethernet/mellanox/mlx4/icm.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/mellanox/mlx4/icm.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/mellanox/mlx4/icm.c	2017-12-20 04:05:01.000000000 -0500
@@ -118,8 +118,13 @@ static int mlx4_alloc_icm_coherent(struc
 	if (!buf)
 		return -ENOMEM;
 
+	if (offset_in_page(buf)) {
+		dma_free_coherent(dev, PAGE_SIZE << order,
+				  buf, sg_dma_address(mem));
+		return -ENOMEM;
+	}
+
 	sg_set_buf(mem, buf, PAGE_SIZE << order);
-	BUG_ON(mem->offset);
 	sg_dma_len(mem) = PAGE_SIZE << order;
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/mellanox/mlx4/intf.c linux-libre-4.4.107-gnu/drivers/net/ethernet/mellanox/mlx4/intf.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/mellanox/mlx4/intf.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/mellanox/mlx4/intf.c	2017-12-20 04:05:01.000000000 -0500
@@ -218,6 +218,18 @@ void mlx4_unregister_device(struct mlx4_
 	struct mlx4_interface *intf;
 
 	mlx4_stop_catas_poll(dev);
+	if (dev->persist->interface_state & MLX4_INTERFACE_STATE_DELETION &&
+	    mlx4_is_slave(dev)) {
+		/* In mlx4_remove_one on a VF */
+		u32 slave_read =
+			swab32(readl(&mlx4_priv(dev)->mfunc.comm->slave_read));
+
+		if (mlx4_comm_internal_err(slave_read)) {
+			mlx4_dbg(dev, "%s: comm channel is down, entering error state.\n",
+				 __func__);
+			mlx4_enter_error_state(dev->persist);
+		}
+	}
 	mutex_lock(&intf_mutex);
 
 	list_for_each_entry(intf, &intf_list, list)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/mellanox/mlx4/main.c linux-libre-4.4.107-gnu/drivers/net/ethernet/mellanox/mlx4/main.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/mellanox/mlx4/main.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/mellanox/mlx4/main.c	2017-12-20 04:05:01.000000000 -0500
@@ -791,8 +791,6 @@ static int mlx4_slave_cap(struct mlx4_de
 		return -ENOSYS;
 	}
 
-	mlx4_log_num_mgm_entry_size = hca_param.log_mc_entry_sz;
-
 	dev->caps.hca_core_clock = hca_param.hca_core_clock;
 
 	memset(&dev_cap, 0, sizeof(dev_cap));
@@ -1765,6 +1763,14 @@ static int mlx4_comm_check_offline(struc
 			       (u32)(1 << COMM_CHAN_OFFLINE_OFFSET));
 		if (!offline_bit)
 			return 0;
+
+		/* If device removal has been requested,
+		 * do not continue retrying.
+		 */
+		if (dev->persist->interface_state &
+		    MLX4_INTERFACE_STATE_NOWAIT)
+			break;
+
 		/* There are cases as part of AER/Reset flow that PF needs
 		 * around 100 msec to load. We therefore sleep for 100 msec
 		 * to allow other tasks to make use of that CPU during this
@@ -3692,6 +3698,9 @@ static void mlx4_remove_one(struct pci_d
 	struct mlx4_priv *priv = mlx4_priv(dev);
 	int active_vfs = 0;
 
+	if (mlx4_is_slave(dev))
+		persist->interface_state |= MLX4_INTERFACE_STATE_NOWAIT;
+
 	mutex_lock(&persist->interface_state_mutex);
 	persist->interface_state |= MLX4_INTERFACE_STATE_DELETION;
 	mutex_unlock(&persist->interface_state_mutex);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h linux-libre-4.4.107-gnu/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
--- linux-libre-4.4-gnu/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h	2017-12-20 04:05:01.000000000 -0500
@@ -409,7 +409,6 @@ struct mlx4_en_dev {
 	struct cyclecounter	cycles;
 	struct timecounter	clock;
 	unsigned long		last_overflow_check;
-	unsigned long		overflow_period;
 	struct ptp_clock	*ptp_clock;
 	struct ptp_clock_info	ptp_clock_info;
 	struct notifier_block	nb;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/mellanox/mlx4/mlx4.h linux-libre-4.4.107-gnu/drivers/net/ethernet/mellanox/mlx4/mlx4.h
--- linux-libre-4.4-gnu/drivers/net/ethernet/mellanox/mlx4/mlx4.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/mellanox/mlx4/mlx4.h	2017-12-20 04:05:01.000000000 -0500
@@ -1205,6 +1205,7 @@ void mlx4_qp_event(struct mlx4_dev *dev,
 void mlx4_srq_event(struct mlx4_dev *dev, u32 srqn, int event_type);
 
 void mlx4_enter_error_state(struct mlx4_dev_persistent *persist);
+int mlx4_comm_internal_err(u32 slave_read);
 
 int mlx4_SENSE_PORT(struct mlx4_dev *dev, int port,
 		    enum mlx4_port_type *type);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c linux-libre-4.4.107-gnu/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c	2017-12-20 04:05:01.000000000 -0500
@@ -2955,6 +2955,9 @@ int mlx4_RST2INIT_QP_wrapper(struct mlx4
 		put_res(dev, slave, srqn, RES_SRQ);
 		qp->srq = srq;
 	}
+
+	/* Save param3 for dynamic changes from VST back to VGT */
+	qp->param3 = qpc->param3;
 	put_res(dev, slave, rcqn, RES_CQ);
 	put_res(dev, slave, mtt_base, RES_MTT);
 	res_end_move(dev, slave, RES_QP, qpn);
@@ -3132,7 +3135,7 @@ static int verify_qp_parameters(struct m
 		case QP_TRANS_RTS2RTS:
 		case QP_TRANS_SQD2SQD:
 		case QP_TRANS_SQD2RTS:
-			if (slave != mlx4_master_func_num(dev))
+			if (slave != mlx4_master_func_num(dev)) {
 				if (optpar & MLX4_QP_OPTPAR_PRIMARY_ADDR_PATH) {
 					port = (qp_ctx->pri_path.sched_queue >> 6 & 1) + 1;
 					if (dev->caps.port_mask[port] != MLX4_PORT_TYPE_IB)
@@ -3151,6 +3154,7 @@ static int verify_qp_parameters(struct m
 					if (qp_ctx->alt_path.mgid_index >= num_gids)
 						return -EINVAL;
 				}
+			}
 			break;
 		default:
 			break;
@@ -3746,7 +3750,6 @@ int mlx4_INIT2RTR_QP_wrapper(struct mlx4
 	int qpn = vhcr->in_modifier & 0x7fffff;
 	struct res_qp *qp;
 	u8 orig_sched_queue;
-	__be32	orig_param3 = qpc->param3;
 	u8 orig_vlan_control = qpc->pri_path.vlan_control;
 	u8 orig_fvl_rx = qpc->pri_path.fvl_rx;
 	u8 orig_pri_path_fl = qpc->pri_path.fl;
@@ -3788,7 +3791,6 @@ out:
 	 */
 	if (!err) {
 		qp->sched_queue = orig_sched_queue;
-		qp->param3	= orig_param3;
 		qp->vlan_control = orig_vlan_control;
 		qp->fvl_rx	=  orig_fvl_rx;
 		qp->pri_path_fl = orig_pri_path_fl;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/mellanox/mlx5/core/cmd.c linux-libre-4.4.107-gnu/drivers/net/ethernet/mellanox/mlx5/core/cmd.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/mellanox/mlx5/core/cmd.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/mellanox/mlx5/core/cmd.c	2017-12-20 04:05:01.000000000 -0500
@@ -143,13 +143,14 @@ static struct mlx5_cmd_layout *get_inst(
 	return cmd->cmd_buf + (idx << cmd->log_stride);
 }
 
-static u8 xor8_buf(void *buf, int len)
+static u8 xor8_buf(void *buf, size_t offset, int len)
 {
 	u8 *ptr = buf;
 	u8 sum = 0;
 	int i;
+	int end = len + offset;
 
-	for (i = 0; i < len; i++)
+	for (i = offset; i < end; i++)
 		sum ^= ptr[i];
 
 	return sum;
@@ -157,41 +158,49 @@ static u8 xor8_buf(void *buf, int len)
 
 static int verify_block_sig(struct mlx5_cmd_prot_block *block)
 {
-	if (xor8_buf(block->rsvd0, sizeof(*block) - sizeof(block->data) - 1) != 0xff)
+	size_t rsvd0_off = offsetof(struct mlx5_cmd_prot_block, rsvd0);
+	int xor_len = sizeof(*block) - sizeof(block->data) - 1;
+
+	if (xor8_buf(block, rsvd0_off, xor_len) != 0xff)
 		return -EINVAL;
 
-	if (xor8_buf(block, sizeof(*block)) != 0xff)
+	if (xor8_buf(block, 0, sizeof(*block)) != 0xff)
 		return -EINVAL;
 
 	return 0;
 }
 
-static void calc_block_sig(struct mlx5_cmd_prot_block *block, u8 token,
-			   int csum)
+static void calc_block_sig(struct mlx5_cmd_prot_block *block)
 {
-	block->token = token;
-	if (csum) {
-		block->ctrl_sig = ~xor8_buf(block->rsvd0, sizeof(*block) -
-					    sizeof(block->data) - 2);
-		block->sig = ~xor8_buf(block, sizeof(*block) - 1);
-	}
+	int ctrl_xor_len = sizeof(*block) - sizeof(block->data) - 2;
+	size_t rsvd0_off = offsetof(struct mlx5_cmd_prot_block, rsvd0);
+
+	block->ctrl_sig = ~xor8_buf(block, rsvd0_off, ctrl_xor_len);
+	block->sig = ~xor8_buf(block, 0, sizeof(*block) - 1);
 }
 
-static void calc_chain_sig(struct mlx5_cmd_msg *msg, u8 token, int csum)
+static void calc_chain_sig(struct mlx5_cmd_msg *msg)
 {
 	struct mlx5_cmd_mailbox *next = msg->next;
+	int size = msg->len;
+	int blen = size - min_t(int, sizeof(msg->first.data), size);
+	int n = (blen + MLX5_CMD_DATA_BLOCK_SIZE - 1)
+		/ MLX5_CMD_DATA_BLOCK_SIZE;
+	int i = 0;
 
-	while (next) {
-		calc_block_sig(next->buf, token, csum);
+	for (i = 0; i < n && next; i++)  {
+		calc_block_sig(next->buf);
 		next = next->next;
 	}
 }
 
 static void set_signature(struct mlx5_cmd_work_ent *ent, int csum)
 {
-	ent->lay->sig = ~xor8_buf(ent->lay, sizeof(*ent->lay));
-	calc_chain_sig(ent->in, ent->token, csum);
-	calc_chain_sig(ent->out, ent->token, csum);
+	ent->lay->sig = ~xor8_buf(ent->lay, 0,  sizeof(*ent->lay));
+	if (csum) {
+		calc_chain_sig(ent->in);
+		calc_chain_sig(ent->out);
+	}
 }
 
 static void poll_timeout(struct mlx5_cmd_work_ent *ent)
@@ -222,12 +231,17 @@ static int verify_signature(struct mlx5_
 	struct mlx5_cmd_mailbox *next = ent->out->next;
 	int err;
 	u8 sig;
+	int size = ent->out->len;
+	int blen = size - min_t(int, sizeof(ent->out->first.data), size);
+	int n = (blen + MLX5_CMD_DATA_BLOCK_SIZE - 1)
+		/ MLX5_CMD_DATA_BLOCK_SIZE;
+	int i = 0;
 
-	sig = xor8_buf(ent->lay, sizeof(*ent->lay));
+	sig = xor8_buf(ent->lay, 0, sizeof(*ent->lay));
 	if (sig != 0xff)
 		return -EINVAL;
 
-	while (next) {
+	for (i = 0; i < n && next; i++) {
 		err = verify_block_sig(next->buf);
 		if (err)
 			return err;
@@ -616,6 +630,10 @@ static void dump_command(struct mlx5_cor
 		pr_debug("\n");
 }
 
+static void free_msg(struct mlx5_core_dev *dev, struct mlx5_cmd_msg *msg);
+static void mlx5_free_cmd_msg(struct mlx5_core_dev *dev,
+			      struct mlx5_cmd_msg *msg);
+
 static void cmd_work_handler(struct work_struct *work)
 {
 	struct mlx5_cmd_work_ent *ent = container_of(work, struct mlx5_cmd_work_ent, work);
@@ -624,16 +642,27 @@ static void cmd_work_handler(struct work
 	struct mlx5_cmd_layout *lay;
 	struct semaphore *sem;
 	unsigned long flags;
+	int alloc_ret;
 
 	sem = ent->page_queue ? &cmd->pages_sem : &cmd->sem;
 	down(sem);
 	if (!ent->page_queue) {
-		ent->idx = alloc_ent(cmd);
-		if (ent->idx < 0) {
+		alloc_ret = alloc_ent(cmd);
+		if (alloc_ret < 0) {
+			if (ent->callback) {
+				ent->callback(-EAGAIN, ent->context);
+				mlx5_free_cmd_msg(dev, ent->out);
+				free_msg(dev, ent->in);
+				free_cmd(ent);
+			} else {
+				ent->ret = -EAGAIN;
+				complete(&ent->done);
+			}
 			mlx5_core_err(dev, "failed to allocate command entry\n");
 			up(sem);
 			return;
 		}
+		ent->idx = alloc_ret;
 	} else {
 		ent->idx = cmd->max_reg_cmds;
 		spin_lock_irqsave(&cmd->alloc_lock, flags);
@@ -641,7 +670,6 @@ static void cmd_work_handler(struct work
 		spin_unlock_irqrestore(&cmd->alloc_lock, flags);
 	}
 
-	ent->token = alloc_token(cmd);
 	cmd->ent_arr[ent->idx] = ent;
 	lay = get_inst(cmd, ent->idx);
 	ent->lay = lay;
@@ -755,7 +783,8 @@ static u8 *get_status_ptr(struct mlx5_ou
 static int mlx5_cmd_invoke(struct mlx5_core_dev *dev, struct mlx5_cmd_msg *in,
 			   struct mlx5_cmd_msg *out, void *uout, int uout_size,
 			   mlx5_cmd_cbk_t callback,
-			   void *context, int page_queue, u8 *status)
+			   void *context, int page_queue, u8 *status,
+			   u8 token)
 {
 	struct mlx5_cmd *cmd = &dev->cmd;
 	struct mlx5_cmd_work_ent *ent;
@@ -772,6 +801,8 @@ static int mlx5_cmd_invoke(struct mlx5_c
 	if (IS_ERR(ent))
 		return PTR_ERR(ent);
 
+	ent->token = token;
+
 	if (!callback)
 		init_completion(&ent->done);
 
@@ -844,7 +875,8 @@ static const struct file_operations fops
 	.write	= dbg_write,
 };
 
-static int mlx5_copy_to_msg(struct mlx5_cmd_msg *to, void *from, int size)
+static int mlx5_copy_to_msg(struct mlx5_cmd_msg *to, void *from, int size,
+			    u8 token)
 {
 	struct mlx5_cmd_prot_block *block;
 	struct mlx5_cmd_mailbox *next;
@@ -870,6 +902,7 @@ static int mlx5_copy_to_msg(struct mlx5_
 		memcpy(block->data, from, copy);
 		from += copy;
 		size -= copy;
+		block->token = token;
 		next = next->next;
 	}
 
@@ -939,7 +972,8 @@ static void free_cmd_box(struct mlx5_cor
 }
 
 static struct mlx5_cmd_msg *mlx5_alloc_cmd_msg(struct mlx5_core_dev *dev,
-					       gfp_t flags, int size)
+					       gfp_t flags, int size,
+					       u8 token)
 {
 	struct mlx5_cmd_mailbox *tmp, *head = NULL;
 	struct mlx5_cmd_prot_block *block;
@@ -968,6 +1002,7 @@ static struct mlx5_cmd_msg *mlx5_alloc_c
 		tmp->next = head;
 		block->next = cpu_to_be64(tmp->next ? tmp->next->dma : 0);
 		block->block_num = cpu_to_be32(n - i - 1);
+		block->token = token;
 		head = tmp;
 	}
 	msg->next = head;
@@ -1351,7 +1386,7 @@ static struct mlx5_cmd_msg *alloc_msg(st
 	}
 
 	if (IS_ERR(msg))
-		msg = mlx5_alloc_cmd_msg(dev, gfp, in_size);
+		msg = mlx5_alloc_cmd_msg(dev, gfp, in_size, 0);
 
 	return msg;
 }
@@ -1376,6 +1411,7 @@ static int cmd_exec(struct mlx5_core_dev
 	int err;
 	u8 status = 0;
 	u32 drv_synd;
+	u8 token;
 
 	if (pci_channel_offline(dev->pdev) ||
 	    dev->state == MLX5_DEVICE_STATE_INTERNAL_ERROR) {
@@ -1394,20 +1430,22 @@ static int cmd_exec(struct mlx5_core_dev
 		return err;
 	}
 
-	err = mlx5_copy_to_msg(inb, in, in_size);
+	token = alloc_token(&dev->cmd);
+
+	err = mlx5_copy_to_msg(inb, in, in_size, token);
 	if (err) {
 		mlx5_core_warn(dev, "err %d\n", err);
 		goto out_in;
 	}
 
-	outb = mlx5_alloc_cmd_msg(dev, gfp, out_size);
+	outb = mlx5_alloc_cmd_msg(dev, gfp, out_size, token);
 	if (IS_ERR(outb)) {
 		err = PTR_ERR(outb);
 		goto out_in;
 	}
 
 	err = mlx5_cmd_invoke(dev, inb, outb, out, out_size, callback, context,
-			      pages_queue, &status);
+			      pages_queue, &status, token);
 	if (err)
 		goto out_out;
 
@@ -1475,7 +1513,7 @@ static int create_msg_cache(struct mlx5_
 	INIT_LIST_HEAD(&cmd->cache.med.head);
 
 	for (i = 0; i < NUM_LONG_LISTS; i++) {
-		msg = mlx5_alloc_cmd_msg(dev, GFP_KERNEL, LONG_LIST_SIZE);
+		msg = mlx5_alloc_cmd_msg(dev, GFP_KERNEL, LONG_LIST_SIZE, 0);
 		if (IS_ERR(msg)) {
 			err = PTR_ERR(msg);
 			goto ex_err;
@@ -1485,7 +1523,7 @@ static int create_msg_cache(struct mlx5_
 	}
 
 	for (i = 0; i < NUM_MED_LISTS; i++) {
-		msg = mlx5_alloc_cmd_msg(dev, GFP_KERNEL, MED_LIST_SIZE);
+		msg = mlx5_alloc_cmd_msg(dev, GFP_KERNEL, MED_LIST_SIZE, 0);
 		if (IS_ERR(msg)) {
 			err = PTR_ERR(msg);
 			goto ex_err;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c linux-libre-4.4.107-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c	2017-12-20 04:05:01.000000000 -0500
@@ -399,6 +399,9 @@ static int mlx5e_get_coalesce(struct net
 {
 	struct mlx5e_priv *priv = netdev_priv(netdev);
 
+	if (!MLX5_CAP_GEN(priv->mdev, cq_moderation))
+		return -ENOTSUPP;
+
 	coal->rx_coalesce_usecs       = priv->params.rx_cq_moderation_usec;
 	coal->rx_max_coalesced_frames = priv->params.rx_cq_moderation_pkts;
 	coal->tx_coalesce_usecs       = priv->params.tx_cq_moderation_usec;
@@ -416,11 +419,18 @@ static int mlx5e_set_coalesce(struct net
 	int tc;
 	int i;
 
+	if (!MLX5_CAP_GEN(mdev, cq_moderation))
+		return -ENOTSUPP;
+
+	mutex_lock(&priv->state_lock);
 	priv->params.tx_cq_moderation_usec = coal->tx_coalesce_usecs;
 	priv->params.tx_cq_moderation_pkts = coal->tx_max_coalesced_frames;
 	priv->params.rx_cq_moderation_usec = coal->rx_coalesce_usecs;
 	priv->params.rx_cq_moderation_pkts = coal->rx_max_coalesced_frames;
 
+	if (!test_bit(MLX5E_STATE_OPENED, &priv->state))
+		goto out;
+
 	for (i = 0; i < priv->params.num_channels; ++i) {
 		c = priv->channel[i];
 
@@ -436,6 +446,8 @@ static int mlx5e_set_coalesce(struct net
 					       coal->rx_max_coalesced_frames);
 	}
 
+out:
+	mutex_unlock(&priv->state_lock);
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_main.c linux-libre-4.4.107-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_main.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_main.c	2017-12-20 04:05:01.000000000 -0500
@@ -746,7 +746,7 @@ static int mlx5e_create_cq(struct mlx5e_
 	struct mlx5_core_dev *mdev = priv->mdev;
 	struct mlx5_core_cq *mcq = &cq->mcq;
 	int eqn_not_used;
-	int irqn;
+	unsigned int irqn;
 	int err;
 	u32 i;
 
@@ -800,7 +800,7 @@ static int mlx5e_enable_cq(struct mlx5e_
 	void *in;
 	void *cqc;
 	int inlen;
-	int irqn_not_used;
+	unsigned int irqn_not_used;
 	int eqn;
 	int err;
 
@@ -863,12 +863,10 @@ static int mlx5e_open_cq(struct mlx5e_ch
 	if (err)
 		goto err_destroy_cq;
 
-	err = mlx5_core_modify_cq_moderation(mdev, &cq->mcq,
-					     moderation_usecs,
-					     moderation_frames);
-	if (err)
-		goto err_destroy_cq;
-
+	if (MLX5_CAP_GEN(mdev, cq_moderation))
+		mlx5_core_modify_cq_moderation(mdev, &cq->mcq,
+					       moderation_usecs,
+					       moderation_frames);
 	return 0;
 
 err_destroy_cq:
@@ -1372,7 +1370,7 @@ static int mlx5e_set_dev_port_mtu(struct
 {
 	struct mlx5e_priv *priv = netdev_priv(netdev);
 	struct mlx5_core_dev *mdev = priv->mdev;
-	int hw_mtu;
+	u16 hw_mtu;
 	int err;
 
 	err = mlx5_set_port_mtu(mdev, MLX5E_SW2HW_MTU(netdev->mtu), 1);
@@ -1504,7 +1502,7 @@ static int mlx5e_create_drop_cq(struct m
 	struct mlx5_core_dev *mdev = priv->mdev;
 	struct mlx5_core_cq *mcq = &cq->mcq;
 	int eqn_not_used;
-	int irqn;
+	unsigned int irqn;
 	int err;
 
 	err = mlx5_cqwq_create(mdev, &param->wq, param->cqc, &cq->wq,
@@ -1891,22 +1889,27 @@ static int mlx5e_set_features(struct net
 	return err;
 }
 
+#define MXL5_HW_MIN_MTU 64
+#define MXL5E_MIN_MTU (MXL5_HW_MIN_MTU + ETH_FCS_LEN)
+
 static int mlx5e_change_mtu(struct net_device *netdev, int new_mtu)
 {
 	struct mlx5e_priv *priv = netdev_priv(netdev);
 	struct mlx5_core_dev *mdev = priv->mdev;
 	bool was_opened;
-	int max_mtu;
+	u16 max_mtu;
+	u16 min_mtu;
 	int err = 0;
 
 	mlx5_query_port_max_mtu(mdev, &max_mtu, 1);
 
 	max_mtu = MLX5E_HW2SW_MTU(max_mtu);
+	min_mtu = MLX5E_HW2SW_MTU(MXL5E_MIN_MTU);
 
-	if (new_mtu > max_mtu) {
+	if (new_mtu > max_mtu || new_mtu < min_mtu) {
 		netdev_err(netdev,
-			   "%s: Bad MTU (%d) > (%d) Max\n",
-			   __func__, new_mtu, max_mtu);
+			   "%s: Bad MTU (%d), valid range is: [%d..%d]\n",
+			   __func__, new_mtu, min_mtu, max_mtu);
 		return -EINVAL;
 	}
 
@@ -1958,6 +1961,8 @@ static int mlx5e_check_required_hca_cap(
 	}
 	if (!MLX5_CAP_ETH(mdev, self_lb_en_modifiable))
 		mlx5_core_warn(mdev, "Self loop back prevention is not supported\n");
+	if (!MLX5_CAP_GEN(mdev, cq_moderation))
+		mlx5_core_warn(mdev, "CQ modiration is not supported\n");
 
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c linux-libre-4.4.107-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c	2017-12-20 04:05:01.000000000 -0500
@@ -197,6 +197,10 @@ static inline void mlx5e_build_rx_skb(st
 	if (lro_num_seg > 1) {
 		mlx5e_lro_update_hdr(skb, cqe);
 		skb_shinfo(skb)->gso_size = DIV_ROUND_UP(cqe_bcnt, lro_num_seg);
+		/* Subtract one since we already counted this as one
+		 * "regular" packet in mlx5e_complete_rx_cqe()
+		 */
+		rq->stats.packets += lro_num_seg - 1;
 		rq->stats.lro_packets++;
 		rq->stats.lro_bytes += cqe_bcnt;
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/mellanox/mlx5/core/main.c linux-libre-4.4.107-gnu/drivers/net/ethernet/mellanox/mlx5/core/main.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/mellanox/mlx5/core/main.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/mellanox/mlx5/core/main.c	2017-12-20 04:05:01.000000000 -0500
@@ -85,7 +85,7 @@ static struct mlx5_profile profile[] = {
 	[2] = {
 		.mask		= MLX5_PROF_MASK_QP_SIZE |
 				  MLX5_PROF_MASK_MR_CACHE,
-		.log_max_qp	= 17,
+		.log_max_qp	= 18,
 		.mr_cache[0]	= {
 			.size	= 500,
 			.limit	= 250
@@ -153,8 +153,9 @@ static struct mlx5_profile profile[] = {
 	},
 };
 
-#define FW_INIT_TIMEOUT_MILI	2000
-#define FW_INIT_WAIT_MS		2
+#define FW_INIT_TIMEOUT_MILI		2000
+#define FW_INIT_WAIT_MS			2
+#define FW_PRE_INIT_TIMEOUT_MILI	10000
 
 static int wait_fw_init(struct mlx5_core_dev *dev, u32 max_wait_mili)
 {
@@ -432,6 +433,13 @@ static int handle_hca_cap(struct mlx5_co
 	MLX5_SET(cmd_hca_cap, set_hca_cap, pkey_table_size,
 		 to_fw_pkey_sz(128));
 
+	/* Check log_max_qp from HCA caps to set in current profile */
+	if (MLX5_CAP_GEN_MAX(dev, log_max_qp) < profile[prof_sel].log_max_qp) {
+		mlx5_core_warn(dev, "log_max_qp value in current profile is %d, changing it to HCA capability limit (%d)\n",
+			       profile[prof_sel].log_max_qp,
+			       MLX5_CAP_GEN_MAX(dev, log_max_qp));
+		profile[prof_sel].log_max_qp = MLX5_CAP_GEN_MAX(dev, log_max_qp);
+	}
 	if (prof->mask & MLX5_PROF_MASK_QP_SIZE)
 		MLX5_SET(cmd_hca_cap, set_hca_cap, log_max_qp,
 			 prof->log_max_qp);
@@ -505,7 +513,6 @@ static int mlx5_irq_set_affinity_hint(st
 	struct mlx5_priv *priv  = &mdev->priv;
 	struct msix_entry *msix = priv->msix_arr;
 	int irq                 = msix[i + MLX5_EQ_VEC_COMP_BASE].vector;
-	int numa_node           = priv->numa_node;
 	int err;
 
 	if (!zalloc_cpumask_var(&priv->irq_info[i].mask, GFP_KERNEL)) {
@@ -513,7 +520,7 @@ static int mlx5_irq_set_affinity_hint(st
 		return -ENOMEM;
 	}
 
-	cpumask_set_cpu(cpumask_local_spread(i, numa_node),
+	cpumask_set_cpu(cpumask_local_spread(i, priv->numa_node),
 			priv->irq_info[i].mask);
 
 	err = irq_set_affinity_hint(irq, priv->irq_info[i].mask);
@@ -568,7 +575,8 @@ static void mlx5_irq_clear_affinity_hint
 		mlx5_irq_clear_affinity_hint(mdev, i);
 }
 
-int mlx5_vector2eqn(struct mlx5_core_dev *dev, int vector, int *eqn, int *irqn)
+int mlx5_vector2eqn(struct mlx5_core_dev *dev, int vector, int *eqn,
+		    unsigned int *irqn)
 {
 	struct mlx5_eq_table *table = &dev->priv.eq_table;
 	struct mlx5_eq *eq, *n;
@@ -927,6 +935,15 @@ static int mlx5_load_one(struct mlx5_cor
 	 */
 	dev->state = MLX5_DEVICE_STATE_UP;
 
+	/* wait for firmware to accept initialization segments configurations
+	 */
+	err = wait_fw_init(dev, FW_PRE_INIT_TIMEOUT_MILI);
+	if (err) {
+		dev_err(&dev->pdev->dev, "Firmware over %d MS in pre-initializing state, aborting\n",
+			FW_PRE_INIT_TIMEOUT_MILI);
+		goto out;
+	}
+
 	err = mlx5_cmd_init(dev);
 	if (err) {
 		dev_err(&pdev->dev, "Failed initializing command interface, aborting\n");
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/mellanox/mlx5/core/port.c linux-libre-4.4.107-gnu/drivers/net/ethernet/mellanox/mlx5/core/port.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/mellanox/mlx5/core/port.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/mellanox/mlx5/core/port.c	2017-12-20 04:05:01.000000000 -0500
@@ -246,8 +246,8 @@ int mlx5_query_port_admin_status(struct
 }
 EXPORT_SYMBOL_GPL(mlx5_query_port_admin_status);
 
-static void mlx5_query_port_mtu(struct mlx5_core_dev *dev, int *admin_mtu,
-				int *max_mtu, int *oper_mtu, u8 port)
+static void mlx5_query_port_mtu(struct mlx5_core_dev *dev, u16 *admin_mtu,
+				u16 *max_mtu, u16 *oper_mtu, u8 port)
 {
 	u32 in[MLX5_ST_SZ_DW(pmtu_reg)];
 	u32 out[MLX5_ST_SZ_DW(pmtu_reg)];
@@ -267,7 +267,7 @@ static void mlx5_query_port_mtu(struct m
 		*admin_mtu = MLX5_GET(pmtu_reg, out, admin_mtu);
 }
 
-int mlx5_set_port_mtu(struct mlx5_core_dev *dev, int mtu, u8 port)
+int mlx5_set_port_mtu(struct mlx5_core_dev *dev, u16 mtu, u8 port)
 {
 	u32 in[MLX5_ST_SZ_DW(pmtu_reg)];
 	u32 out[MLX5_ST_SZ_DW(pmtu_reg)];
@@ -282,14 +282,14 @@ int mlx5_set_port_mtu(struct mlx5_core_d
 }
 EXPORT_SYMBOL_GPL(mlx5_set_port_mtu);
 
-void mlx5_query_port_max_mtu(struct mlx5_core_dev *dev, int *max_mtu,
+void mlx5_query_port_max_mtu(struct mlx5_core_dev *dev, u16 *max_mtu,
 			     u8 port)
 {
 	mlx5_query_port_mtu(dev, NULL, max_mtu, NULL, port);
 }
 EXPORT_SYMBOL_GPL(mlx5_query_port_max_mtu);
 
-void mlx5_query_port_oper_mtu(struct mlx5_core_dev *dev, int *oper_mtu,
+void mlx5_query_port_oper_mtu(struct mlx5_core_dev *dev, u16 *oper_mtu,
 			      u8 port)
 {
 	mlx5_query_port_mtu(dev, NULL, NULL, oper_mtu, port);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/mellanox/mlxsw/pci.h linux-libre-4.4.107-gnu/drivers/net/ethernet/mellanox/mlxsw/pci.h
--- linux-libre-4.4-gnu/drivers/net/ethernet/mellanox/mlxsw/pci.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/mellanox/mlxsw/pci.h	2017-12-20 04:05:01.000000000 -0500
@@ -206,21 +206,21 @@ MLXSW_ITEM32(pci, eqe, owner, 0x0C, 0, 1
 /* pci_eqe_cmd_token
  * Command completion event - token
  */
-MLXSW_ITEM32(pci, eqe, cmd_token, 0x08, 16, 16);
+MLXSW_ITEM32(pci, eqe, cmd_token, 0x00, 16, 16);
 
 /* pci_eqe_cmd_status
  * Command completion event - status
  */
-MLXSW_ITEM32(pci, eqe, cmd_status, 0x08, 0, 8);
+MLXSW_ITEM32(pci, eqe, cmd_status, 0x00, 0, 8);
 
 /* pci_eqe_cmd_out_param_h
  * Command completion event - output parameter - higher part
  */
-MLXSW_ITEM32(pci, eqe, cmd_out_param_h, 0x0C, 0, 32);
+MLXSW_ITEM32(pci, eqe, cmd_out_param_h, 0x04, 0, 32);
 
 /* pci_eqe_cmd_out_param_l
  * Command completion event - output parameter - lower part
  */
-MLXSW_ITEM32(pci, eqe, cmd_out_param_l, 0x10, 0, 32);
+MLXSW_ITEM32(pci, eqe, cmd_out_param_l, 0x08, 0, 32);
 
 #endif
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/mellanox/mlxsw/reg.h linux-libre-4.4.107-gnu/drivers/net/ethernet/mellanox/mlxsw/reg.h
--- linux-libre-4.4-gnu/drivers/net/ethernet/mellanox/mlxsw/reg.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/mellanox/mlxsw/reg.h	2017-12-20 04:05:01.000000000 -0500
@@ -599,7 +599,7 @@ static inline void mlxsw_reg_spvid_pack(
 #define MLXSW_REG_SPVM_ID 0x200F
 #define MLXSW_REG_SPVM_BASE_LEN 0x04 /* base length, without records */
 #define MLXSW_REG_SPVM_REC_LEN 0x04 /* record length */
-#define MLXSW_REG_SPVM_REC_MAX_COUNT 256
+#define MLXSW_REG_SPVM_REC_MAX_COUNT 255
 #define MLXSW_REG_SPVM_LEN (MLXSW_REG_SPVM_BASE_LEN +	\
 		    MLXSW_REG_SPVM_REC_LEN * MLXSW_REG_SPVM_REC_MAX_COUNT)
 
@@ -1139,7 +1139,7 @@ static inline void mlxsw_reg_sfmr_pack(c
 #define MLXSW_REG_SPVMLR_ID 0x2020
 #define MLXSW_REG_SPVMLR_BASE_LEN 0x04 /* base length, without records */
 #define MLXSW_REG_SPVMLR_REC_LEN 0x04 /* record length */
-#define MLXSW_REG_SPVMLR_REC_MAX_COUNT 256
+#define MLXSW_REG_SPVMLR_REC_MAX_COUNT 255
 #define MLXSW_REG_SPVMLR_LEN (MLXSW_REG_SPVMLR_BASE_LEN + \
 			      MLXSW_REG_SPVMLR_REC_LEN * \
 			      MLXSW_REG_SPVMLR_REC_MAX_COUNT)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/mellanox/mlxsw/spectrum.c linux-libre-4.4.107-gnu/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/mellanox/mlxsw/spectrum.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/mellanox/mlxsw/spectrum.c	2017-12-20 04:05:01.000000000 -0500
@@ -390,6 +390,7 @@ static netdev_tx_t mlxsw_sp_port_xmit(st
 			dev_kfree_skb_any(skb_orig);
 			return NETDEV_TX_OK;
 		}
+		dev_consume_skb_any(skb_orig);
 	}
 
 	if (eth_skb_pad(skb)) {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/mellanox/mlxsw/spectrum.h linux-libre-4.4.107-gnu/drivers/net/ethernet/mellanox/mlxsw/spectrum.h
--- linux-libre-4.4-gnu/drivers/net/ethernet/mellanox/mlxsw/spectrum.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/mellanox/mlxsw/spectrum.h	2017-12-20 04:05:01.000000000 -0500
@@ -61,6 +61,8 @@ struct mlxsw_sp {
 #define MLXSW_SP_DEFAULT_LEARNING_INTERVAL 100
 		unsigned int interval; /* ms */
 	} fdb_notify;
+#define MLXSW_SP_MIN_AGEING_TIME 10
+#define MLXSW_SP_MAX_AGEING_TIME 1000000
 #define MLXSW_SP_DEFAULT_AGEING_TIME 300
 	u32 ageing_time;
 	struct {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c linux-libre-4.4.107-gnu/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c	2017-12-20 04:05:01.000000000 -0500
@@ -45,6 +45,7 @@
 #include <linux/if_bridge.h>
 #include <linux/workqueue.h>
 #include <linux/jiffies.h>
+#include <linux/rtnetlink.h>
 #include <net/switchdev.h>
 
 #include "spectrum.h"
@@ -231,8 +232,13 @@ static int mlxsw_sp_port_attr_br_ageing_
 	unsigned long ageing_jiffies = clock_t_to_jiffies(ageing_clock_t);
 	u32 ageing_time = jiffies_to_msecs(ageing_jiffies) / 1000;
 
-	if (switchdev_trans_ph_prepare(trans))
-		return 0;
+	if (switchdev_trans_ph_prepare(trans)) {
+		if (ageing_time < MLXSW_SP_MIN_AGEING_TIME ||
+		    ageing_time > MLXSW_SP_MAX_AGEING_TIME)
+			return -ERANGE;
+		else
+			return 0;
+	}
 
 	return mlxsw_sp_ageing_set(mlxsw_sp, ageing_time);
 }
@@ -812,6 +818,7 @@ static void mlxsw_sp_fdb_notify_work(str
 
 	mlxsw_sp = container_of(work, struct mlxsw_sp, fdb_notify.dw.work);
 
+	rtnl_lock();
 	do {
 		mlxsw_reg_sfn_pack(sfn_pl);
 		err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(sfn), sfn_pl);
@@ -824,6 +831,7 @@ static void mlxsw_sp_fdb_notify_work(str
 			mlxsw_sp_fdb_notify_rec_process(mlxsw_sp, sfn_pl, i);
 
 	} while (num_rec);
+	rtnl_unlock();
 
 	kfree(sfn_pl);
 	mlxsw_sp_fdb_notify_work_schedule(mlxsw_sp);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/mellanox/mlxsw/switchx2.c linux-libre-4.4.107-gnu/drivers/net/ethernet/mellanox/mlxsw/switchx2.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/mellanox/mlxsw/switchx2.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/mellanox/mlxsw/switchx2.c	2017-12-20 04:05:01.000000000 -0500
@@ -313,6 +313,7 @@ static netdev_tx_t mlxsw_sx_port_xmit(st
 			dev_kfree_skb_any(skb_orig);
 			return NETDEV_TX_OK;
 		}
+		dev_consume_skb_any(skb_orig);
 	}
 	mlxsw_sx_txhdr_construct(skb, &tx_info);
 	len = skb->len;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/neterion/vxge/vxge-main.c linux-libre-4.4.107-gnu/drivers/net/ethernet/neterion/vxge/vxge-main.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/neterion/vxge/vxge-main.c	2016-01-10 21:05:50.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/neterion/vxge/vxge-main.c	2017-12-20 11:27:52.000000000 -0500
@@ -2223,8 +2223,6 @@ static irqreturn_t vxge_isr_napi(int irq
 	return IRQ_NONE;
 }
 
-#ifdef CONFIG_PCI_MSI
-
 static irqreturn_t vxge_tx_msix_handle(int irq, void *dev_id)
 {
 	struct vxge_fifo *fifo = (struct vxge_fifo *)dev_id;
@@ -2442,16 +2440,13 @@ static void vxge_rem_msix_isr(struct vxg
 	if (vdev->config.intr_type == MSI_X)
 		pci_disable_msix(vdev->pdev);
 }
-#endif
 
 static void vxge_rem_isr(struct vxgedev *vdev)
 {
-#ifdef CONFIG_PCI_MSI
-	if (vdev->config.intr_type == MSI_X) {
+	if (IS_ENABLED(CONFIG_PCI_MSI) &&
+	    vdev->config.intr_type == MSI_X) {
 		vxge_rem_msix_isr(vdev);
-	} else
-#endif
-	if (vdev->config.intr_type == INTA) {
+	} else if (vdev->config.intr_type == INTA) {
 			synchronize_irq(vdev->pdev->irq);
 			free_irq(vdev->pdev->irq, vdev);
 	}
@@ -2460,11 +2455,10 @@ static void vxge_rem_isr(struct vxgedev
 static int vxge_add_isr(struct vxgedev *vdev)
 {
 	int ret = 0;
-#ifdef CONFIG_PCI_MSI
 	int vp_idx = 0, intr_idx = 0, intr_cnt = 0, msix_idx = 0, irq_req = 0;
 	int pci_fun = PCI_FUNC(vdev->pdev->devfn);
 
-	if (vdev->config.intr_type == MSI_X)
+	if (IS_ENABLED(CONFIG_PCI_MSI) && vdev->config.intr_type == MSI_X)
 		ret = vxge_enable_msix(vdev);
 
 	if (ret) {
@@ -2475,7 +2469,7 @@ static int vxge_add_isr(struct vxgedev *
 		vdev->config.intr_type = INTA;
 	}
 
-	if (vdev->config.intr_type == MSI_X) {
+	if (IS_ENABLED(CONFIG_PCI_MSI) && vdev->config.intr_type == MSI_X) {
 		for (intr_idx = 0;
 		     intr_idx < (vdev->no_of_vpath *
 			VXGE_HW_VPATH_MSIX_ACTIVE); intr_idx++) {
@@ -2576,9 +2570,8 @@ static int vxge_add_isr(struct vxgedev *
 		vdev->vxge_entries[intr_cnt].in_use = 1;
 		vdev->vxge_entries[intr_cnt].arg = &vdev->vpaths[0];
 	}
-INTA_MODE:
-#endif
 
+INTA_MODE:
 	if (vdev->config.intr_type == INTA) {
 		snprintf(vdev->desc[0], VXGE_INTR_STRLEN,
 			"%s:vxge:INTA", vdev->ndev->name);
@@ -3889,12 +3882,12 @@ static void vxge_device_config_init(stru
 	if (max_mac_vpath > VXGE_MAX_MAC_ADDR_COUNT)
 		max_mac_vpath = VXGE_MAX_MAC_ADDR_COUNT;
 
-#ifndef CONFIG_PCI_MSI
-	vxge_debug_init(VXGE_ERR,
-		"%s: This Kernel does not support "
-		"MSI-X. Defaulting to INTA", VXGE_DRIVER_NAME);
-	*intr_type = INTA;
-#endif
+	if (!IS_ENABLED(CONFIG_PCI_MSI)) {
+		vxge_debug_init(VXGE_ERR,
+			"%s: This Kernel does not support "
+			"MSI-X. Defaulting to INTA", VXGE_DRIVER_NAME);
+		*intr_type = INTA;
+	}
 
 	/* Configure whether MSI-X or IRQL. */
 	switch (*intr_type) {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/qlogic/qed/qed_spq.c linux-libre-4.4.107-gnu/drivers/net/ethernet/qlogic/qed/qed_spq.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/qlogic/qed/qed_spq.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/qlogic/qed/qed_spq.c	2017-12-20 04:05:01.000000000 -0500
@@ -794,13 +794,12 @@ int qed_spq_completion(struct qed_hwfn *
 			 * in a bitmap and increasing the chain consumer only
 			 * for the first successive completed entries.
 			 */
-			bitmap_set(p_spq->p_comp_bitmap, pos, SPQ_RING_SIZE);
+			__set_bit(pos, p_spq->p_comp_bitmap);
 
 			while (test_bit(p_spq->comp_bitmap_idx,
 					p_spq->p_comp_bitmap)) {
-				bitmap_clear(p_spq->p_comp_bitmap,
-					     p_spq->comp_bitmap_idx,
-					     SPQ_RING_SIZE);
+				__clear_bit(p_spq->comp_bitmap_idx,
+					    p_spq->p_comp_bitmap);
 				p_spq->comp_bitmap_idx++;
 				qed_chain_return_produced(&p_spq->chain);
 			}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c linux-libre-4.4.107-gnu/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c	2017-12-20 04:05:01.000000000 -0500
@@ -491,7 +491,7 @@ irqreturn_t qlcnic_83xx_clear_legacy_int
 
 static inline void qlcnic_83xx_notify_mbx_response(struct qlcnic_mailbox *mbx)
 {
-	atomic_set(&mbx->rsp_status, QLC_83XX_MBX_RESPONSE_ARRIVED);
+	mbx->rsp_status = QLC_83XX_MBX_RESPONSE_ARRIVED;
 	complete(&mbx->completion);
 }
 
@@ -510,7 +510,7 @@ static void qlcnic_83xx_poll_process_aen
 	if (event &  QLCNIC_MBX_ASYNC_EVENT) {
 		__qlcnic_83xx_process_aen(adapter);
 	} else {
-		if (atomic_read(&mbx->rsp_status) != rsp_status)
+		if (mbx->rsp_status != rsp_status)
 			qlcnic_83xx_notify_mbx_response(mbx);
 	}
 out:
@@ -1023,7 +1023,7 @@ static void qlcnic_83xx_process_aen(stru
 		if (event &  QLCNIC_MBX_ASYNC_EVENT) {
 			__qlcnic_83xx_process_aen(adapter);
 		} else {
-			if (atomic_read(&mbx->rsp_status) != rsp_status)
+			if (mbx->rsp_status != rsp_status)
 				qlcnic_83xx_notify_mbx_response(mbx);
 		}
 	}
@@ -2338,9 +2338,9 @@ static void qlcnic_83xx_handle_link_aen(
 
 static irqreturn_t qlcnic_83xx_handle_aen(int irq, void *data)
 {
+	u32 mask, resp, event, rsp_status = QLC_83XX_MBX_RESPONSE_ARRIVED;
 	struct qlcnic_adapter *adapter = data;
 	struct qlcnic_mailbox *mbx;
-	u32 mask, resp, event;
 	unsigned long flags;
 
 	mbx = adapter->ahw->mailbox;
@@ -2350,10 +2350,14 @@ static irqreturn_t qlcnic_83xx_handle_ae
 		goto out;
 
 	event = readl(QLCNIC_MBX_FW(adapter->ahw, 0));
-	if (event &  QLCNIC_MBX_ASYNC_EVENT)
+	if (event &  QLCNIC_MBX_ASYNC_EVENT) {
 		__qlcnic_83xx_process_aen(adapter);
-	else
-		qlcnic_83xx_notify_mbx_response(mbx);
+	} else {
+		if (mbx->rsp_status != rsp_status)
+			qlcnic_83xx_notify_mbx_response(mbx);
+		else
+			adapter->stats.mbx_spurious_intr++;
+	}
 
 out:
 	mask = QLCRDX(adapter->ahw, QLCNIC_DEF_INT_MASK);
@@ -4050,10 +4054,10 @@ static void qlcnic_83xx_mailbox_worker(s
 	struct qlcnic_adapter *adapter = mbx->adapter;
 	const struct qlcnic_mbx_ops *mbx_ops = mbx->ops;
 	struct device *dev = &adapter->pdev->dev;
-	atomic_t *rsp_status = &mbx->rsp_status;
 	struct list_head *head = &mbx->cmd_q;
 	struct qlcnic_hardware_context *ahw;
 	struct qlcnic_cmd_args *cmd = NULL;
+	unsigned long flags;
 
 	ahw = adapter->ahw;
 
@@ -4063,7 +4067,9 @@ static void qlcnic_83xx_mailbox_worker(s
 			return;
 		}
 
-		atomic_set(rsp_status, QLC_83XX_MBX_RESPONSE_WAIT);
+		spin_lock_irqsave(&mbx->aen_lock, flags);
+		mbx->rsp_status = QLC_83XX_MBX_RESPONSE_WAIT;
+		spin_unlock_irqrestore(&mbx->aen_lock, flags);
 
 		spin_lock(&mbx->queue_lock);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c linux-libre-4.4.107-gnu/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c	2017-12-20 04:05:01.000000000 -0500
@@ -59,7 +59,8 @@ static const struct qlcnic_stats qlcnic_
 	 QLC_OFF(stats.mac_filter_limit_overrun)},
 	{"spurious intr", QLC_SIZEOF(stats.spurious_intr),
 	 QLC_OFF(stats.spurious_intr)},
-
+	{"mbx spurious intr", QLC_SIZEOF(stats.mbx_spurious_intr),
+	 QLC_OFF(stats.mbx_spurious_intr)},
 };
 
 static const char qlcnic_device_gstrings_stats[][ETH_GSTRING_LEN] = {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h linux-libre-4.4.107-gnu/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
--- linux-libre-4.4-gnu/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h	2016-01-10 21:05:05.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h	2017-12-20 11:26:24.000000000 -0500
@@ -566,6 +566,7 @@ struct qlcnic_adapter_stats {
 	u64  tx_dma_map_error;
 	u64  spurious_intr;
 	u64  mac_filter_limit_overrun;
+	u64  mbx_spurious_intr;
 };
 
 /*
@@ -1099,7 +1100,7 @@ struct qlcnic_mailbox {
 	unsigned long		status;
 	spinlock_t		queue_lock;	/* Mailbox queue lock */
 	spinlock_t		aen_lock;	/* Mailbox response/AEN lock */
-	atomic_t		rsp_status;
+	u32			rsp_status;
 	u32			num_cmds;
 };
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/qlogic/qlge/qlge_dbg.c linux-libre-4.4.107-gnu/drivers/net/ethernet/qlogic/qlge/qlge_dbg.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/qlogic/qlge/qlge_dbg.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/qlogic/qlge/qlge_dbg.c	2017-12-20 04:05:01.000000000 -0500
@@ -724,7 +724,7 @@ static void ql_build_coredump_seg_header
 	seg_hdr->cookie = MPI_COREDUMP_COOKIE;
 	seg_hdr->segNum = seg_number;
 	seg_hdr->segSize = seg_size;
-	memcpy(seg_hdr->description, desc, (sizeof(seg_hdr->description)) - 1);
+	strncpy(seg_hdr->description, desc, (sizeof(seg_hdr->description)) - 1);
 }
 
 /*
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/qlogic/qlge/qlge_main.c linux-libre-4.4.107-gnu/drivers/net/ethernet/qlogic/qlge/qlge_main.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/qlogic/qlge/qlge_main.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/qlogic/qlge/qlge_main.c	2017-12-20 04:05:01.000000000 -0500
@@ -1648,7 +1648,18 @@ static void ql_process_mac_rx_skb(struct
 		return;
 	}
 	skb_reserve(new_skb, NET_IP_ALIGN);
+
+	pci_dma_sync_single_for_cpu(qdev->pdev,
+				    dma_unmap_addr(sbq_desc, mapaddr),
+				    dma_unmap_len(sbq_desc, maplen),
+				    PCI_DMA_FROMDEVICE);
+
 	memcpy(skb_put(new_skb, length), skb->data, length);
+
+	pci_dma_sync_single_for_device(qdev->pdev,
+				       dma_unmap_addr(sbq_desc, mapaddr),
+				       dma_unmap_len(sbq_desc, maplen),
+				       PCI_DMA_FROMDEVICE);
 	skb = new_skb;
 
 	/* Frame error, so drop the packet. */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/qualcomm/qca_spi.c linux-libre-4.4.107-gnu/drivers/net/ethernet/qualcomm/qca_spi.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/qualcomm/qca_spi.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/qualcomm/qca_spi.c	2017-12-20 04:05:01.000000000 -0500
@@ -811,7 +811,7 @@ qcaspi_netdev_setup(struct net_device *d
 	dev->netdev_ops = &qcaspi_netdev_ops;
 	qcaspi_set_ethtool_ops(dev);
 	dev->watchdog_timeo = QCASPI_TX_TIMEOUT;
-	dev->flags = IFF_MULTICAST;
+	dev->priv_flags &= ~IFF_TX_SKB_SHARING;
 	dev->tx_queue_len = 100;
 
 	qca = netdev_priv(dev);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/realtek/r8169.c linux-libre-4.4.107-gnu/drivers/net/ethernet/realtek/r8169.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/realtek/r8169.c	2016-01-10 21:05:18.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/realtek/r8169.c	2017-12-20 11:26:50.000000000 -0500
@@ -326,6 +326,7 @@ enum cfg_version {
 static const struct pci_device_id rtl8169_pci_tbl[] = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_REALTEK,	0x8129), 0, 0, RTL_CFG_0 },
 	{ PCI_DEVICE(PCI_VENDOR_ID_REALTEK,	0x8136), 0, 0, RTL_CFG_2 },
+	{ PCI_DEVICE(PCI_VENDOR_ID_REALTEK,	0x8161), 0, 0, RTL_CFG_1 },
 	{ PCI_DEVICE(PCI_VENDOR_ID_REALTEK,	0x8167), 0, 0, RTL_CFG_0 },
 	{ PCI_DEVICE(PCI_VENDOR_ID_REALTEK,	0x8168), 0, 0, RTL_CFG_1 },
 	{ PCI_DEVICE(PCI_VENDOR_ID_REALTEK,	0x8169), 0, 0, RTL_CFG_0 },
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/renesas/ravb_main.c linux-libre-4.4.107-gnu/drivers/net/ethernet/renesas/ravb_main.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/renesas/ravb_main.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/renesas/ravb_main.c	2017-12-20 04:05:01.000000000 -0500
@@ -171,34 +171,67 @@ static struct mdiobb_ops bb_ops = {
 	.get_mdio_data = ravb_get_mdio_data,
 };
 
-/* Free skb's and DMA buffers for Ethernet AVB */
-static void ravb_ring_free(struct net_device *ndev, int q)
+/* Free TX skb function for AVB-IP */
+static int ravb_tx_free(struct net_device *ndev, int q, bool free_txed_only)
 {
 	struct ravb_private *priv = netdev_priv(ndev);
-	int ring_size;
-	int i;
+	struct net_device_stats *stats = &priv->stats[q];
+	struct ravb_tx_desc *desc;
+	int free_num = 0;
+	int entry;
+	u32 size;
 
-	/* Free RX skb ringbuffer */
-	if (priv->rx_skb[q]) {
-		for (i = 0; i < priv->num_rx_ring[q]; i++)
-			dev_kfree_skb(priv->rx_skb[q][i]);
-	}
-	kfree(priv->rx_skb[q]);
-	priv->rx_skb[q] = NULL;
+	for (; priv->cur_tx[q] - priv->dirty_tx[q] > 0; priv->dirty_tx[q]++) {
+		bool txed;
 
-	/* Free TX skb ringbuffer */
-	if (priv->tx_skb[q]) {
-		for (i = 0; i < priv->num_tx_ring[q]; i++)
-			dev_kfree_skb(priv->tx_skb[q][i]);
+		entry = priv->dirty_tx[q] % (priv->num_tx_ring[q] *
+					     NUM_TX_DESC);
+		desc = &priv->tx_ring[q][entry];
+		txed = desc->die_dt == DT_FEMPTY;
+		if (free_txed_only && !txed)
+			break;
+		/* Descriptor type must be checked before all other reads */
+		dma_rmb();
+		size = le16_to_cpu(desc->ds_tagl) & TX_DS;
+		/* Free the original skb. */
+		if (priv->tx_skb[q][entry / NUM_TX_DESC]) {
+			dma_unmap_single(ndev->dev.parent, le32_to_cpu(desc->dptr),
+					 size, DMA_TO_DEVICE);
+			/* Last packet descriptor? */
+			if (entry % NUM_TX_DESC == NUM_TX_DESC - 1) {
+				entry /= NUM_TX_DESC;
+				dev_kfree_skb_any(priv->tx_skb[q][entry]);
+				priv->tx_skb[q][entry] = NULL;
+				if (txed)
+					stats->tx_packets++;
+			}
+			free_num++;
+		}
+		if (txed)
+			stats->tx_bytes += size;
+		desc->die_dt = DT_EEMPTY;
 	}
-	kfree(priv->tx_skb[q]);
-	priv->tx_skb[q] = NULL;
+	return free_num;
+}
 
-	/* Free aligned TX buffers */
-	kfree(priv->tx_align[q]);
-	priv->tx_align[q] = NULL;
+/* Free skb's and DMA buffers for Ethernet AVB */
+static void ravb_ring_free(struct net_device *ndev, int q)
+{
+	struct ravb_private *priv = netdev_priv(ndev);
+	int ring_size;
+	int i;
 
 	if (priv->rx_ring[q]) {
+		for (i = 0; i < priv->num_rx_ring[q]; i++) {
+			struct ravb_ex_rx_desc *desc = &priv->rx_ring[q][i];
+
+			if (!dma_mapping_error(ndev->dev.parent,
+					       le32_to_cpu(desc->dptr)))
+				dma_unmap_single(ndev->dev.parent,
+						 le32_to_cpu(desc->dptr),
+						 PKT_BUF_SZ,
+						 DMA_FROM_DEVICE);
+		}
 		ring_size = sizeof(struct ravb_ex_rx_desc) *
 			    (priv->num_rx_ring[q] + 1);
 		dma_free_coherent(ndev->dev.parent, ring_size, priv->rx_ring[q],
@@ -207,12 +240,32 @@ static void ravb_ring_free(struct net_de
 	}
 
 	if (priv->tx_ring[q]) {
+		ravb_tx_free(ndev, q, false);
+
 		ring_size = sizeof(struct ravb_tx_desc) *
 			    (priv->num_tx_ring[q] * NUM_TX_DESC + 1);
 		dma_free_coherent(ndev->dev.parent, ring_size, priv->tx_ring[q],
 				  priv->tx_desc_dma[q]);
 		priv->tx_ring[q] = NULL;
 	}
+
+	/* Free RX skb ringbuffer */
+	if (priv->rx_skb[q]) {
+		for (i = 0; i < priv->num_rx_ring[q]; i++)
+			dev_kfree_skb(priv->rx_skb[q][i]);
+	}
+	kfree(priv->rx_skb[q]);
+	priv->rx_skb[q] = NULL;
+
+	/* Free aligned TX buffers */
+	kfree(priv->tx_align[q]);
+	priv->tx_align[q] = NULL;
+
+	/* Free TX skb ringbuffer.
+	 * SKBs are freed by ravb_tx_free() call above.
+	 */
+	kfree(priv->tx_skb[q]);
+	priv->tx_skb[q] = NULL;
 }
 
 /* Format skb and descriptor buffer for Ethernet AVB */
@@ -420,44 +473,6 @@ static int ravb_dmac_init(struct net_dev
 	return 0;
 }
 
-/* Free TX skb function for AVB-IP */
-static int ravb_tx_free(struct net_device *ndev, int q)
-{
-	struct ravb_private *priv = netdev_priv(ndev);
-	struct net_device_stats *stats = &priv->stats[q];
-	struct ravb_tx_desc *desc;
-	int free_num = 0;
-	int entry;
-	u32 size;
-
-	for (; priv->cur_tx[q] - priv->dirty_tx[q] > 0; priv->dirty_tx[q]++) {
-		entry = priv->dirty_tx[q] % (priv->num_tx_ring[q] *
-					     NUM_TX_DESC);
-		desc = &priv->tx_ring[q][entry];
-		if (desc->die_dt != DT_FEMPTY)
-			break;
-		/* Descriptor type must be checked before all other reads */
-		dma_rmb();
-		size = le16_to_cpu(desc->ds_tagl) & TX_DS;
-		/* Free the original skb. */
-		if (priv->tx_skb[q][entry / NUM_TX_DESC]) {
-			dma_unmap_single(ndev->dev.parent, le32_to_cpu(desc->dptr),
-					 size, DMA_TO_DEVICE);
-			/* Last packet descriptor? */
-			if (entry % NUM_TX_DESC == NUM_TX_DESC - 1) {
-				entry /= NUM_TX_DESC;
-				dev_kfree_skb_any(priv->tx_skb[q][entry]);
-				priv->tx_skb[q][entry] = NULL;
-				stats->tx_packets++;
-			}
-			free_num++;
-		}
-		stats->tx_bytes += size;
-		desc->die_dt = DT_EEMPTY;
-	}
-	return free_num;
-}
-
 static void ravb_get_tx_tstamp(struct net_device *ndev)
 {
 	struct ravb_private *priv = netdev_priv(ndev);
@@ -797,7 +812,7 @@ static int ravb_poll(struct napi_struct
 			spin_lock_irqsave(&priv->lock, flags);
 			/* Clear TX interrupt */
 			ravb_write(ndev, ~mask, TIS);
-			ravb_tx_free(ndev, q);
+			ravb_tx_free(ndev, q, true);
 			netif_wake_subqueue(ndev, q);
 			mmiowb();
 			spin_unlock_irqrestore(&priv->lock, flags);
@@ -816,14 +831,10 @@ static int ravb_poll(struct napi_struct
 	/* Receive error message handling */
 	priv->rx_over_errors =  priv->stats[RAVB_BE].rx_over_errors;
 	priv->rx_over_errors += priv->stats[RAVB_NC].rx_over_errors;
-	if (priv->rx_over_errors != ndev->stats.rx_over_errors) {
+	if (priv->rx_over_errors != ndev->stats.rx_over_errors)
 		ndev->stats.rx_over_errors = priv->rx_over_errors;
-		netif_err(priv, rx_err, ndev, "Receive Descriptor Empty\n");
-	}
-	if (priv->rx_fifo_errors != ndev->stats.rx_fifo_errors) {
+	if (priv->rx_fifo_errors != ndev->stats.rx_fifo_errors)
 		ndev->stats.rx_fifo_errors = priv->rx_fifo_errors;
-		netif_err(priv, rx_err, ndev, "Receive FIFO Overflow\n");
-	}
 out:
 	return budget - quota;
 }
@@ -1330,6 +1341,19 @@ static netdev_tx_t ravb_start_xmit(struc
 	buffer = PTR_ALIGN(priv->tx_align[q], DPTR_ALIGN) +
 		 entry / NUM_TX_DESC * DPTR_ALIGN;
 	len = PTR_ALIGN(skb->data, DPTR_ALIGN) - skb->data;
+	/* Zero length DMA descriptors are problematic as they seem to
+	 * terminate DMA transfers. Avoid them by simply using a length of
+	 * DPTR_ALIGN (4) when skb data is aligned to DPTR_ALIGN.
+	 *
+	 * As skb is guaranteed to have at least ETH_ZLEN (60) bytes of
+	 * data by the call to skb_put_padto() above this is safe with
+	 * respect to both the length of the first DMA descriptor (len)
+	 * overflowing the available data and the length of the second DMA
+	 * descriptor (skb->len - len) being negative.
+	 */
+	if (len == 0)
+		len = DPTR_ALIGN;
+
 	memcpy(buffer, skb->data, len);
 	dma_addr = dma_map_single(ndev->dev.parent, buffer, len, DMA_TO_DEVICE);
 	if (dma_mapping_error(ndev->dev.parent, dma_addr))
@@ -1380,7 +1404,8 @@ static netdev_tx_t ravb_start_xmit(struc
 
 	priv->cur_tx[q] += NUM_TX_DESC;
 	if (priv->cur_tx[q] - priv->dirty_tx[q] >
-	    (priv->num_tx_ring[q] - 1) * NUM_TX_DESC && !ravb_tx_free(ndev, q))
+	    (priv->num_tx_ring[q] - 1) * NUM_TX_DESC &&
+	    !ravb_tx_free(ndev, q, true))
 		netif_stop_subqueue(ndev, q);
 
 exit:
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/renesas/sh_eth.c linux-libre-4.4.107-gnu/drivers/net/ethernet/renesas/sh_eth.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/renesas/sh_eth.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/renesas/sh_eth.c	2017-12-20 04:05:01.000000000 -0500
@@ -750,6 +750,7 @@ static struct sh_eth_cpu_data sh7734_dat
 	.tsu		= 1,
 	.hw_crc		= 1,
 	.select_mii	= 1,
+	.shift_rd0	= 1,
 };
 
 /* SH7763 */
@@ -818,6 +819,7 @@ static struct sh_eth_cpu_data r8a7740_da
 	.rpadir_value   = 2 << 16,
 	.no_trimd	= 1,
 	.no_ade		= 1,
+	.hw_crc		= 1,
 	.tsu		= 1,
 	.select_mii	= 1,
 	.shift_rd0	= 1,
@@ -832,7 +834,7 @@ static struct sh_eth_cpu_data r7s72100_d
 
 	.ecsr_value	= ECSR_ICD,
 	.ecsipr_value	= ECSIPR_ICDIP,
-	.eesipr_value	= 0xff7f009f,
+	.eesipr_value	= 0xe77f009f,
 
 	.tx_check	= EESR_TC1 | EESR_FTC,
 	.eesr_err_check	= EESR_TWB1 | EESR_TWB | EESR_TABT | EESR_RABT |
@@ -1185,11 +1187,8 @@ static void sh_eth_ring_format(struct ne
 			break;
 		sh_eth_set_receive_align(skb);
 
-		/* RX descriptor */
-		rxdesc = &mdp->rx_ring[i];
 		/* The size of the buffer is a multiple of 32 bytes. */
 		buf_len = ALIGN(mdp->rx_buf_sz, 32);
-		rxdesc->len = cpu_to_edmac(mdp, buf_len << 16);
 		dma_addr = dma_map_single(&ndev->dev, skb->data, buf_len,
 					  DMA_FROM_DEVICE);
 		if (dma_mapping_error(&ndev->dev, dma_addr)) {
@@ -1197,6 +1196,10 @@ static void sh_eth_ring_format(struct ne
 			break;
 		}
 		mdp->rx_skbuff[i] = skb;
+
+		/* RX descriptor */
+		rxdesc = &mdp->rx_ring[i];
+		rxdesc->len = cpu_to_edmac(mdp, buf_len << 16);
 		rxdesc->addr = cpu_to_edmac(mdp, dma_addr);
 		rxdesc->status = cpu_to_edmac(mdp, RD_RACT | RD_RFP);
 
@@ -1212,7 +1215,8 @@ static void sh_eth_ring_format(struct ne
 	mdp->dirty_rx = (u32) (i - mdp->num_rx_ring);
 
 	/* Mark the last entry as wrapping the ring. */
-	rxdesc->status |= cpu_to_edmac(mdp, RD_RDLE);
+	if (rxdesc)
+		rxdesc->status |= cpu_to_edmac(mdp, RD_RDLE);
 
 	memset(mdp->tx_ring, 0, tx_ringsize);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/renesas/sh_eth.h linux-libre-4.4.107-gnu/drivers/net/ethernet/renesas/sh_eth.h
--- linux-libre-4.4-gnu/drivers/net/ethernet/renesas/sh_eth.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/renesas/sh_eth.h	2017-12-20 04:05:01.000000000 -0500
@@ -339,7 +339,7 @@ enum FELIC_MODE_BIT {
 	ECMR_DPAD = 0x00200000, ECMR_RZPF = 0x00100000,
 	ECMR_ZPF = 0x00080000, ECMR_PFR = 0x00040000, ECMR_RXF = 0x00020000,
 	ECMR_TXF = 0x00010000, ECMR_MCT = 0x00002000, ECMR_PRCEF = 0x00001000,
-	ECMR_PMDE = 0x00000200, ECMR_RE = 0x00000040, ECMR_TE = 0x00000020,
+	ECMR_MPDE = 0x00000200, ECMR_RE = 0x00000040, ECMR_TE = 0x00000020,
 	ECMR_RTM = 0x00000010, ECMR_ILB = 0x00000008, ECMR_ELB = 0x00000004,
 	ECMR_DM = 0x00000002, ECMR_PRM = 0x00000001,
 };
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/rocker/rocker.c linux-libre-4.4.107-gnu/drivers/net/ethernet/rocker/rocker.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/rocker/rocker.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/rocker/rocker.c	2017-12-20 04:05:01.000000000 -0500
@@ -239,6 +239,7 @@ struct rocker {
 	struct {
 		u64 id;
 	} hw;
+	unsigned long ageing_time;
 	spinlock_t cmd_ring_lock;		/* for cmd ring accesses */
 	struct rocker_dma_ring_info cmd_ring;
 	struct rocker_dma_ring_info event_ring;
@@ -3531,12 +3532,14 @@ static void rocker_port_fdb_learn_work(s
 	info.addr = lw->addr;
 	info.vid = lw->vid;
 
+	rtnl_lock();
 	if (learned && removing)
 		call_switchdev_notifiers(SWITCHDEV_FDB_DEL,
 					 lw->rocker_port->dev, &info.info);
 	else if (learned && !removing)
 		call_switchdev_notifiers(SWITCHDEV_FDB_ADD,
 					 lw->rocker_port->dev, &info.info);
+	rtnl_unlock();
 
 	rocker_port_kfree(lw->trans, work);
 }
@@ -3702,7 +3705,7 @@ static void rocker_fdb_cleanup(unsigned
 	struct rocker_port *rocker_port;
 	struct rocker_fdb_tbl_entry *entry;
 	struct hlist_node *tmp;
-	unsigned long next_timer = jiffies + BR_MIN_AGEING_TIME;
+	unsigned long next_timer = jiffies + rocker->ageing_time;
 	unsigned long expires;
 	unsigned long lock_flags;
 	int flags = ROCKER_OP_FLAG_NOWAIT | ROCKER_OP_FLAG_REMOVE |
@@ -4365,8 +4368,12 @@ static int rocker_port_bridge_ageing_tim
 					  struct switchdev_trans *trans,
 					  u32 ageing_time)
 {
+	struct rocker *rocker = rocker_port->rocker;
+
 	if (!switchdev_trans_ph_prepare(trans)) {
 		rocker_port->ageing_time = clock_t_to_jiffies(ageing_time);
+		if (rocker_port->ageing_time < rocker->ageing_time)
+			rocker->ageing_time = rocker_port->ageing_time;
 		mod_timer(&rocker_port->rocker->fdb_cleanup_timer, jiffies);
 	}
 
@@ -4468,7 +4475,7 @@ static int rocker_port_obj_add(struct ne
 		fib4 = SWITCHDEV_OBJ_IPV4_FIB(obj);
 		err = rocker_port_fib_ipv4(rocker_port, trans,
 					   htonl(fib4->dst), fib4->dst_len,
-					   &fib4->fi, fib4->tb_id, 0);
+					   fib4->fi, fib4->tb_id, 0);
 		break;
 	case SWITCHDEV_OBJ_ID_PORT_FDB:
 		err = rocker_port_fdb_add(rocker_port, trans,
@@ -4540,7 +4547,7 @@ static int rocker_port_obj_del(struct ne
 		fib4 = SWITCHDEV_OBJ_IPV4_FIB(obj);
 		err = rocker_port_fib_ipv4(rocker_port, NULL,
 					   htonl(fib4->dst), fib4->dst_len,
-					   &fib4->fi, fib4->tb_id,
+					   fib4->fi, fib4->tb_id,
 					   ROCKER_OP_FLAG_REMOVE);
 		break;
 	case SWITCHDEV_OBJ_ID_PORT_FDB:
@@ -5204,10 +5211,13 @@ static int rocker_probe(struct pci_dev *
 		goto err_init_tbls;
 	}
 
+	rocker->ageing_time = BR_DEFAULT_AGEING_TIME;
 	setup_timer(&rocker->fdb_cleanup_timer, rocker_fdb_cleanup,
 		    (unsigned long) rocker);
 	mod_timer(&rocker->fdb_cleanup_timer, jiffies);
 
+	rocker->ageing_time = BR_DEFAULT_AGEING_TIME;
+
 	err = rocker_probe_ports(rocker);
 	if (err) {
 		dev_err(&pdev->dev, "failed to probe ports\n");
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/sfc/ef10.c linux-libre-4.4.107-gnu/drivers/net/ethernet/sfc/ef10.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/sfc/ef10.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/sfc/ef10.c	2017-12-20 04:05:01.000000000 -0500
@@ -619,6 +619,17 @@ fail:
 	return rc;
 }
 
+static void efx_ef10_forget_old_piobufs(struct efx_nic *efx)
+{
+	struct efx_channel *channel;
+	struct efx_tx_queue *tx_queue;
+
+	/* All our existing PIO buffers went away */
+	efx_for_each_channel(channel, efx)
+		efx_for_each_channel_tx_queue(tx_queue, channel)
+			tx_queue->piobuf = NULL;
+}
+
 #else /* !EFX_USE_PIO */
 
 static int efx_ef10_alloc_piobufs(struct efx_nic *efx, unsigned int n)
@@ -635,6 +646,10 @@ static void efx_ef10_free_piobufs(struct
 {
 }
 
+static void efx_ef10_forget_old_piobufs(struct efx_nic *efx)
+{
+}
+
 #endif /* EFX_USE_PIO */
 
 static void efx_ef10_remove(struct efx_nic *efx)
@@ -1018,6 +1033,7 @@ static void efx_ef10_reset_mc_allocation
 	nic_data->must_realloc_vis = true;
 	nic_data->must_restore_filters = true;
 	nic_data->must_restore_piobufs = true;
+	efx_ef10_forget_old_piobufs(efx);
 	nic_data->rx_rss_context = EFX_EF10_RSS_CONTEXT_INVALID;
 
 	/* Driver-created vswitches and vports must be re-created */
@@ -4291,7 +4307,7 @@ static int efx_ef10_set_mac_address(stru
 		 * MCFW do not support VFs.
 		 */
 		rc = efx_ef10_vport_set_mac_address(efx);
-	} else {
+	} else if (rc) {
 		efx_mcdi_display_error(efx, MC_CMD_VADAPTOR_SET_MAC,
 				       sizeof(inbuf), NULL, 0, rc);
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/sfc/falcon.c linux-libre-4.4.107-gnu/drivers/net/ethernet/sfc/falcon.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/sfc/falcon.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/sfc/falcon.c	2017-12-20 04:05:01.000000000 -0500
@@ -2796,6 +2796,11 @@ const struct efx_nic_type falcon_a1_nic_
 	.timer_period_max =  1 << FRF_AB_TC_TIMER_VAL_WIDTH,
 	.offload_features = NETIF_F_IP_CSUM,
 	.mcdi_max_ver = -1,
+#ifdef CONFIG_SFC_SRIOV
+	.vswitching_probe = efx_port_dummy_op_int,
+	.vswitching_restore = efx_port_dummy_op_int,
+	.vswitching_remove = efx_port_dummy_op_void,
+#endif
 };
 
 const struct efx_nic_type falcon_b0_nic_type = {
@@ -2897,4 +2902,9 @@ const struct efx_nic_type falcon_b0_nic_
 	.offload_features = NETIF_F_IP_CSUM | NETIF_F_RXHASH | NETIF_F_NTUPLE,
 	.mcdi_max_ver = -1,
 	.max_rx_ip_filters = FR_BZ_RX_FILTER_TBL0_ROWS,
+#ifdef CONFIG_SFC_SRIOV
+	.vswitching_probe = efx_port_dummy_op_int,
+	.vswitching_restore = efx_port_dummy_op_int,
+	.vswitching_remove = efx_port_dummy_op_void,
+#endif
 };
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/smsc/smc91x.c linux-libre-4.4.107-gnu/drivers/net/ethernet/smsc/smc91x.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/smsc/smc91x.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/smsc/smc91x.c	2017-12-20 04:05:01.000000000 -0500
@@ -540,7 +540,7 @@ static inline void  smc_rcv(struct net_d
 #define smc_special_lock(lock, flags)		spin_lock_irqsave(lock, flags)
 #define smc_special_unlock(lock, flags) 	spin_unlock_irqrestore(lock, flags)
 #else
-#define smc_special_trylock(lock, flags)	(flags == flags)
+#define smc_special_trylock(lock, flags)	((void)flags, true)
 #define smc_special_lock(lock, flags)   	do { flags = 0; } while (0)
 #define smc_special_unlock(lock, flags)	do { flags = 0; } while (0)
 #endif
@@ -2269,6 +2269,13 @@ static int smc_drv_probe(struct platform
 	if (pd) {
 		memcpy(&lp->cfg, pd, sizeof(lp->cfg));
 		lp->io_shift = SMC91X_IO_SHIFT(lp->cfg.flags);
+
+		if (!SMC_8BIT(lp) && !SMC_16BIT(lp)) {
+			dev_err(&pdev->dev,
+				"at least one of 8-bit or 16-bit access support is required.\n");
+			ret = -ENXIO;
+			goto out_free_netdev;
+		}
 	}
 
 #if IS_BUILTIN(CONFIG_OF)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/smsc/smc91x.h linux-libre-4.4.107-gnu/drivers/net/ethernet/smsc/smc91x.h
--- linux-libre-4.4-gnu/drivers/net/ethernet/smsc/smc91x.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/smsc/smc91x.h	2017-12-20 04:05:01.000000000 -0500
@@ -37,6 +37,27 @@
 #include <linux/smc91x.h>
 
 /*
+ * Any 16-bit access is performed with two 8-bit accesses if the hardware
+ * can't do it directly. Most registers are 16-bit so those are mandatory.
+ */
+#define SMC_outw_b(x, a, r)						\
+	do {								\
+		unsigned int __val16 = (x);				\
+		unsigned int __reg = (r);				\
+		SMC_outb(__val16, a, __reg);				\
+		SMC_outb(__val16 >> 8, a, __reg + (1 << SMC_IO_SHIFT));	\
+	} while (0)
+
+#define SMC_inw_b(a, r)							\
+	({								\
+		unsigned int __val16;					\
+		unsigned int __reg = r;					\
+		__val16  = SMC_inb(a, __reg);				\
+		__val16 |= SMC_inb(a, __reg + (1 << SMC_IO_SHIFT)) << 8; \
+		__val16;						\
+	})
+
+/*
  * Define your architecture specific bus configuration parameters here.
  */
 
@@ -55,10 +76,30 @@
 #define SMC_IO_SHIFT		(lp->io_shift)
 
 #define SMC_inb(a, r)		readb((a) + (r))
-#define SMC_inw(a, r)		readw((a) + (r))
+#define SMC_inw(a, r)							\
+	({								\
+		unsigned int __smc_r = r;				\
+		SMC_16BIT(lp) ? readw((a) + __smc_r) :			\
+		SMC_8BIT(lp) ? SMC_inw_b(a, __smc_r) :			\
+		({ BUG(); 0; });					\
+	})
+
 #define SMC_inl(a, r)		readl((a) + (r))
 #define SMC_outb(v, a, r)	writeb(v, (a) + (r))
+#define SMC_outw(v, a, r)						\
+	do {								\
+		unsigned int __v = v, __smc_r = r;			\
+		if (SMC_16BIT(lp))					\
+			__SMC_outw(__v, a, __smc_r);			\
+		else if (SMC_8BIT(lp))					\
+			SMC_outw_b(__v, a, __smc_r);			\
+		else							\
+			BUG();						\
+	} while (0)
+
 #define SMC_outl(v, a, r)	writel(v, (a) + (r))
+#define SMC_insb(a, r, p, l)	readsb((a) + (r), p, l)
+#define SMC_outsb(a, r, p, l)	writesb((a) + (r), p, l)
 #define SMC_insw(a, r, p, l)	readsw((a) + (r), p, l)
 #define SMC_outsw(a, r, p, l)	writesw((a) + (r), p, l)
 #define SMC_insl(a, r, p, l)	readsl((a) + (r), p, l)
@@ -66,7 +107,7 @@
 #define SMC_IRQ_FLAGS		(-1)	/* from resource */
 
 /* We actually can't write halfwords properly if not word aligned */
-static inline void SMC_outw(u16 val, void __iomem *ioaddr, int reg)
+static inline void __SMC_outw(u16 val, void __iomem *ioaddr, int reg)
 {
 	if ((machine_is_mainstone() || machine_is_stargate2() ||
 	     machine_is_pxa_idp()) && reg & 2) {
@@ -405,24 +446,8 @@ smc_pxa_dma_insw(void __iomem *ioaddr, s
 
 #if ! SMC_CAN_USE_16BIT
 
-/*
- * Any 16-bit access is performed with two 8-bit accesses if the hardware
- * can't do it directly. Most registers are 16-bit so those are mandatory.
- */
-#define SMC_outw(x, ioaddr, reg)					\
-	do {								\
-		unsigned int __val16 = (x);				\
-		SMC_outb( __val16, ioaddr, reg );			\
-		SMC_outb( __val16 >> 8, ioaddr, reg + (1 << SMC_IO_SHIFT));\
-	} while (0)
-#define SMC_inw(ioaddr, reg)						\
-	({								\
-		unsigned int __val16;					\
-		__val16 =  SMC_inb( ioaddr, reg );			\
-		__val16 |= SMC_inb( ioaddr, reg + (1 << SMC_IO_SHIFT)) << 8; \
-		__val16;						\
-	})
-
+#define SMC_outw(x, ioaddr, reg)	SMC_outw_b(x, ioaddr, reg)
+#define SMC_inw(ioaddr, reg)		SMC_inw_b(ioaddr, reg)
 #define SMC_insw(a, r, p, l)		BUG()
 #define SMC_outsw(a, r, p, l)		BUG()
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c linux-libre-4.4.107-gnu/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c	2017-12-20 04:05:01.000000000 -0500
@@ -2939,12 +2939,6 @@ int stmmac_dvr_probe(struct device *devi
 	spin_lock_init(&priv->lock);
 	spin_lock_init(&priv->tx_lock);
 
-	ret = register_netdev(ndev);
-	if (ret) {
-		pr_err("%s: ERROR %i registering the device\n", __func__, ret);
-		goto error_netdev_register;
-	}
-
 	/* If a specific clk_csr value is passed from the platform
 	 * this means that the CSR Clock Range selection cannot be
 	 * changed at run-time and it is fixed. Viceversa the driver'll try to
@@ -2969,11 +2963,21 @@ int stmmac_dvr_probe(struct device *devi
 		}
 	}
 
-	return 0;
+	ret = register_netdev(ndev);
+	if (ret) {
+		netdev_err(priv->dev, "%s: ERROR %i registering the device\n",
+			   __func__, ret);
+		goto error_netdev_register;
+	}
+
+	return ret;
 
-error_mdio_register:
-	unregister_netdev(ndev);
 error_netdev_register:
+	if (priv->pcs != STMMAC_PCS_RGMII &&
+	    priv->pcs != STMMAC_PCS_TBI &&
+	    priv->pcs != STMMAC_PCS_RTBI)
+		stmmac_mdio_unregister(ndev);
+error_mdio_register:
 	netif_napi_del(&priv->napi);
 error_hw_init:
 	clk_disable_unprepare(priv->pclk);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/synopsys/dwc_eth_qos.c linux-libre-4.4.107-gnu/drivers/net/ethernet/synopsys/dwc_eth_qos.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/synopsys/dwc_eth_qos.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/synopsys/dwc_eth_qos.c	2017-12-20 04:05:01.000000000 -0500
@@ -2107,7 +2107,7 @@ static int dwceqos_tx_frags(struct sk_bu
 			dd = &lp->tx_descs[lp->tx_next];
 
 			/* Set DMA Descriptor fields */
-			dd->des0 = dma_handle;
+			dd->des0 = dma_handle + consumed_size;
 			dd->des1 = 0;
 			dd->des2 = dma_size;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/ti/cpmac.c linux-libre-4.4.107-gnu/drivers/net/ethernet/ti/cpmac.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/ti/cpmac.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/ti/cpmac.c	2017-12-20 04:05:01.000000000 -0500
@@ -549,7 +549,8 @@ fatal_error:
 
 static int cpmac_start_xmit(struct sk_buff *skb, struct net_device *dev)
 {
-	int queue, len;
+	int queue;
+	unsigned int len;
 	struct cpmac_desc *desc;
 	struct cpmac_priv *priv = netdev_priv(dev);
 
@@ -559,7 +560,7 @@ static int cpmac_start_xmit(struct sk_bu
 	if (unlikely(skb_padto(skb, ETH_ZLEN)))
 		return NETDEV_TX_OK;
 
-	len = max(skb->len, ETH_ZLEN);
+	len = max_t(unsigned int, skb->len, ETH_ZLEN);
 	queue = skb_get_queue_mapping(skb);
 	netif_stop_subqueue(dev, queue);
 
@@ -1236,7 +1237,7 @@ int cpmac_init(void)
 		goto fail_alloc;
 	}
 
-#warning FIXME: unhardcode gpio&reset bits
+	/* FIXME: unhardcode gpio&reset bits */
 	ar7_gpio_disable(26);
 	ar7_gpio_disable(27);
 	ar7_device_reset(AR7_RESET_BIT_CPMAC_LO);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ethernet/xilinx/xilinx_emaclite.c linux-libre-4.4.107-gnu/drivers/net/ethernet/xilinx/xilinx_emaclite.c
--- linux-libre-4.4-gnu/drivers/net/ethernet/xilinx/xilinx_emaclite.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ethernet/xilinx/xilinx_emaclite.c	2017-12-20 04:05:01.000000000 -0500
@@ -100,6 +100,14 @@
 /* BUFFER_ALIGN(adr) calculates the number of bytes to the next alignment. */
 #define BUFFER_ALIGN(adr) ((ALIGNMENT - ((u32) adr)) % ALIGNMENT)
 
+#ifdef __BIG_ENDIAN
+#define xemaclite_readl		ioread32be
+#define xemaclite_writel	iowrite32be
+#else
+#define xemaclite_readl		ioread32
+#define xemaclite_writel	iowrite32
+#endif
+
 /**
  * struct net_local - Our private per device data
  * @ndev:		instance of the network device
@@ -158,15 +166,15 @@ static void xemaclite_enable_interrupts(
 	u32 reg_data;
 
 	/* Enable the Tx interrupts for the first Buffer */
-	reg_data = __raw_readl(drvdata->base_addr + XEL_TSR_OFFSET);
-	__raw_writel(reg_data | XEL_TSR_XMIT_IE_MASK,
-		     drvdata->base_addr + XEL_TSR_OFFSET);
+	reg_data = xemaclite_readl(drvdata->base_addr + XEL_TSR_OFFSET);
+	xemaclite_writel(reg_data | XEL_TSR_XMIT_IE_MASK,
+			 drvdata->base_addr + XEL_TSR_OFFSET);
 
 	/* Enable the Rx interrupts for the first buffer */
-	__raw_writel(XEL_RSR_RECV_IE_MASK, drvdata->base_addr + XEL_RSR_OFFSET);
+	xemaclite_writel(XEL_RSR_RECV_IE_MASK, drvdata->base_addr + XEL_RSR_OFFSET);
 
 	/* Enable the Global Interrupt Enable */
-	__raw_writel(XEL_GIER_GIE_MASK, drvdata->base_addr + XEL_GIER_OFFSET);
+	xemaclite_writel(XEL_GIER_GIE_MASK, drvdata->base_addr + XEL_GIER_OFFSET);
 }
 
 /**
@@ -181,17 +189,17 @@ static void xemaclite_disable_interrupts
 	u32 reg_data;
 
 	/* Disable the Global Interrupt Enable */
-	__raw_writel(XEL_GIER_GIE_MASK, drvdata->base_addr + XEL_GIER_OFFSET);
+	xemaclite_writel(XEL_GIER_GIE_MASK, drvdata->base_addr + XEL_GIER_OFFSET);
 
 	/* Disable the Tx interrupts for the first buffer */
-	reg_data = __raw_readl(drvdata->base_addr + XEL_TSR_OFFSET);
-	__raw_writel(reg_data & (~XEL_TSR_XMIT_IE_MASK),
-		     drvdata->base_addr + XEL_TSR_OFFSET);
+	reg_data = xemaclite_readl(drvdata->base_addr + XEL_TSR_OFFSET);
+	xemaclite_writel(reg_data & (~XEL_TSR_XMIT_IE_MASK),
+			 drvdata->base_addr + XEL_TSR_OFFSET);
 
 	/* Disable the Rx interrupts for the first buffer */
-	reg_data = __raw_readl(drvdata->base_addr + XEL_RSR_OFFSET);
-	__raw_writel(reg_data & (~XEL_RSR_RECV_IE_MASK),
-		     drvdata->base_addr + XEL_RSR_OFFSET);
+	reg_data = xemaclite_readl(drvdata->base_addr + XEL_RSR_OFFSET);
+	xemaclite_writel(reg_data & (~XEL_RSR_RECV_IE_MASK),
+			 drvdata->base_addr + XEL_RSR_OFFSET);
 }
 
 /**
@@ -323,7 +331,7 @@ static int xemaclite_send_data(struct ne
 		byte_count = ETH_FRAME_LEN;
 
 	/* Check if the expected buffer is available */
-	reg_data = __raw_readl(addr + XEL_TSR_OFFSET);
+	reg_data = xemaclite_readl(addr + XEL_TSR_OFFSET);
 	if ((reg_data & (XEL_TSR_XMIT_BUSY_MASK |
 	     XEL_TSR_XMIT_ACTIVE_MASK)) == 0) {
 
@@ -336,7 +344,7 @@ static int xemaclite_send_data(struct ne
 
 		addr = (void __iomem __force *)((u32 __force)addr ^
 						 XEL_BUFFER_OFFSET);
-		reg_data = __raw_readl(addr + XEL_TSR_OFFSET);
+		reg_data = xemaclite_readl(addr + XEL_TSR_OFFSET);
 
 		if ((reg_data & (XEL_TSR_XMIT_BUSY_MASK |
 		     XEL_TSR_XMIT_ACTIVE_MASK)) != 0)
@@ -347,16 +355,16 @@ static int xemaclite_send_data(struct ne
 	/* Write the frame to the buffer */
 	xemaclite_aligned_write(data, (u32 __force *) addr, byte_count);
 
-	__raw_writel((byte_count & XEL_TPLR_LENGTH_MASK),
-		     addr + XEL_TPLR_OFFSET);
+	xemaclite_writel((byte_count & XEL_TPLR_LENGTH_MASK),
+			 addr + XEL_TPLR_OFFSET);
 
 	/* Update the Tx Status Register to indicate that there is a
 	 * frame to send. Set the XEL_TSR_XMIT_ACTIVE_MASK flag which
 	 * is used by the interrupt handler to check whether a frame
 	 * has been transmitted */
-	reg_data = __raw_readl(addr + XEL_TSR_OFFSET);
+	reg_data = xemaclite_readl(addr + XEL_TSR_OFFSET);
 	reg_data |= (XEL_TSR_XMIT_BUSY_MASK | XEL_TSR_XMIT_ACTIVE_MASK);
-	__raw_writel(reg_data, addr + XEL_TSR_OFFSET);
+	xemaclite_writel(reg_data, addr + XEL_TSR_OFFSET);
 
 	return 0;
 }
@@ -371,7 +379,7 @@ static int xemaclite_send_data(struct ne
  *
  * Return:	Total number of bytes received
  */
-static u16 xemaclite_recv_data(struct net_local *drvdata, u8 *data)
+static u16 xemaclite_recv_data(struct net_local *drvdata, u8 *data, int maxlen)
 {
 	void __iomem *addr;
 	u16 length, proto_type;
@@ -381,7 +389,7 @@ static u16 xemaclite_recv_data(struct ne
 	addr = (drvdata->base_addr + drvdata->next_rx_buf_to_use);
 
 	/* Verify which buffer has valid data */
-	reg_data = __raw_readl(addr + XEL_RSR_OFFSET);
+	reg_data = xemaclite_readl(addr + XEL_RSR_OFFSET);
 
 	if ((reg_data & XEL_RSR_RECV_DONE_MASK) == XEL_RSR_RECV_DONE_MASK) {
 		if (drvdata->rx_ping_pong != 0)
@@ -398,27 +406,28 @@ static u16 xemaclite_recv_data(struct ne
 			return 0;	/* No data was available */
 
 		/* Verify that buffer has valid data */
-		reg_data = __raw_readl(addr + XEL_RSR_OFFSET);
+		reg_data = xemaclite_readl(addr + XEL_RSR_OFFSET);
 		if ((reg_data & XEL_RSR_RECV_DONE_MASK) !=
 		     XEL_RSR_RECV_DONE_MASK)
 			return 0;	/* No data was available */
 	}
 
 	/* Get the protocol type of the ethernet frame that arrived */
-	proto_type = ((ntohl(__raw_readl(addr + XEL_HEADER_OFFSET +
+	proto_type = ((ntohl(xemaclite_readl(addr + XEL_HEADER_OFFSET +
 			XEL_RXBUFF_OFFSET)) >> XEL_HEADER_SHIFT) &
 			XEL_RPLR_LENGTH_MASK);
 
 	/* Check if received ethernet frame is a raw ethernet frame
 	 * or an IP packet or an ARP packet */
-	if (proto_type > (ETH_FRAME_LEN + ETH_FCS_LEN)) {
+	if (proto_type > ETH_DATA_LEN) {
 
 		if (proto_type == ETH_P_IP) {
-			length = ((ntohl(__raw_readl(addr +
+			length = ((ntohl(xemaclite_readl(addr +
 					XEL_HEADER_IP_LENGTH_OFFSET +
 					XEL_RXBUFF_OFFSET)) >>
 					XEL_HEADER_SHIFT) &
 					XEL_RPLR_LENGTH_MASK);
+			length = min_t(u16, length, ETH_DATA_LEN);
 			length += ETH_HLEN + ETH_FCS_LEN;
 
 		} else if (proto_type == ETH_P_ARP)
@@ -431,14 +440,17 @@ static u16 xemaclite_recv_data(struct ne
 		/* Use the length in the frame, plus the header and trailer */
 		length = proto_type + ETH_HLEN + ETH_FCS_LEN;
 
+	if (WARN_ON(length > maxlen))
+		length = maxlen;
+
 	/* Read from the EmacLite device */
 	xemaclite_aligned_read((u32 __force *) (addr + XEL_RXBUFF_OFFSET),
 				data, length);
 
 	/* Acknowledge the frame */
-	reg_data = __raw_readl(addr + XEL_RSR_OFFSET);
+	reg_data = xemaclite_readl(addr + XEL_RSR_OFFSET);
 	reg_data &= ~XEL_RSR_RECV_DONE_MASK;
-	__raw_writel(reg_data, addr + XEL_RSR_OFFSET);
+	xemaclite_writel(reg_data, addr + XEL_RSR_OFFSET);
 
 	return length;
 }
@@ -465,14 +477,14 @@ static void xemaclite_update_address(str
 
 	xemaclite_aligned_write(address_ptr, (u32 __force *) addr, ETH_ALEN);
 
-	__raw_writel(ETH_ALEN, addr + XEL_TPLR_OFFSET);
+	xemaclite_writel(ETH_ALEN, addr + XEL_TPLR_OFFSET);
 
 	/* Update the MAC address in the EmacLite */
-	reg_data = __raw_readl(addr + XEL_TSR_OFFSET);
-	__raw_writel(reg_data | XEL_TSR_PROG_MAC_ADDR, addr + XEL_TSR_OFFSET);
+	reg_data = xemaclite_readl(addr + XEL_TSR_OFFSET);
+	xemaclite_writel(reg_data | XEL_TSR_PROG_MAC_ADDR, addr + XEL_TSR_OFFSET);
 
 	/* Wait for EmacLite to finish with the MAC address update */
-	while ((__raw_readl(addr + XEL_TSR_OFFSET) &
+	while ((xemaclite_readl(addr + XEL_TSR_OFFSET) &
 		XEL_TSR_PROG_MAC_ADDR) != 0)
 		;
 }
@@ -605,7 +617,7 @@ static void xemaclite_rx_handler(struct
 
 	skb_reserve(skb, 2);
 
-	len = xemaclite_recv_data(lp, (u8 *) skb->data);
+	len = xemaclite_recv_data(lp, (u8 *) skb->data, len);
 
 	if (!len) {
 		dev->stats.rx_errors++;
@@ -642,32 +654,32 @@ static irqreturn_t xemaclite_interrupt(i
 	u32 tx_status;
 
 	/* Check if there is Rx Data available */
-	if ((__raw_readl(base_addr + XEL_RSR_OFFSET) &
+	if ((xemaclite_readl(base_addr + XEL_RSR_OFFSET) &
 			 XEL_RSR_RECV_DONE_MASK) ||
-	    (__raw_readl(base_addr + XEL_BUFFER_OFFSET + XEL_RSR_OFFSET)
+	    (xemaclite_readl(base_addr + XEL_BUFFER_OFFSET + XEL_RSR_OFFSET)
 			 & XEL_RSR_RECV_DONE_MASK))
 
 		xemaclite_rx_handler(dev);
 
 	/* Check if the Transmission for the first buffer is completed */
-	tx_status = __raw_readl(base_addr + XEL_TSR_OFFSET);
+	tx_status = xemaclite_readl(base_addr + XEL_TSR_OFFSET);
 	if (((tx_status & XEL_TSR_XMIT_BUSY_MASK) == 0) &&
 		(tx_status & XEL_TSR_XMIT_ACTIVE_MASK) != 0) {
 
 		tx_status &= ~XEL_TSR_XMIT_ACTIVE_MASK;
-		__raw_writel(tx_status, base_addr + XEL_TSR_OFFSET);
+		xemaclite_writel(tx_status, base_addr + XEL_TSR_OFFSET);
 
 		tx_complete = true;
 	}
 
 	/* Check if the Transmission for the second buffer is completed */
-	tx_status = __raw_readl(base_addr + XEL_BUFFER_OFFSET + XEL_TSR_OFFSET);
+	tx_status = xemaclite_readl(base_addr + XEL_BUFFER_OFFSET + XEL_TSR_OFFSET);
 	if (((tx_status & XEL_TSR_XMIT_BUSY_MASK) == 0) &&
 		(tx_status & XEL_TSR_XMIT_ACTIVE_MASK) != 0) {
 
 		tx_status &= ~XEL_TSR_XMIT_ACTIVE_MASK;
-		__raw_writel(tx_status, base_addr + XEL_BUFFER_OFFSET +
-			     XEL_TSR_OFFSET);
+		xemaclite_writel(tx_status, base_addr + XEL_BUFFER_OFFSET +
+				 XEL_TSR_OFFSET);
 
 		tx_complete = true;
 	}
@@ -700,7 +712,7 @@ static int xemaclite_mdio_wait(struct ne
 	/* wait for the MDIO interface to not be busy or timeout
 	   after some time.
 	*/
-	while (__raw_readl(lp->base_addr + XEL_MDIOCTRL_OFFSET) &
+	while (xemaclite_readl(lp->base_addr + XEL_MDIOCTRL_OFFSET) &
 			XEL_MDIOCTRL_MDIOSTS_MASK) {
 		if (time_before_eq(end, jiffies)) {
 			WARN_ON(1);
@@ -736,17 +748,17 @@ static int xemaclite_mdio_read(struct mi
 	 * MDIO Address register. Set the Status bit in the MDIO Control
 	 * register to start a MDIO read transaction.
 	 */
-	ctrl_reg = __raw_readl(lp->base_addr + XEL_MDIOCTRL_OFFSET);
-	__raw_writel(XEL_MDIOADDR_OP_MASK |
-		     ((phy_id << XEL_MDIOADDR_PHYADR_SHIFT) | reg),
-		     lp->base_addr + XEL_MDIOADDR_OFFSET);
-	__raw_writel(ctrl_reg | XEL_MDIOCTRL_MDIOSTS_MASK,
-		     lp->base_addr + XEL_MDIOCTRL_OFFSET);
+	ctrl_reg = xemaclite_readl(lp->base_addr + XEL_MDIOCTRL_OFFSET);
+	xemaclite_writel(XEL_MDIOADDR_OP_MASK |
+			 ((phy_id << XEL_MDIOADDR_PHYADR_SHIFT) | reg),
+			 lp->base_addr + XEL_MDIOADDR_OFFSET);
+	xemaclite_writel(ctrl_reg | XEL_MDIOCTRL_MDIOSTS_MASK,
+			 lp->base_addr + XEL_MDIOCTRL_OFFSET);
 
 	if (xemaclite_mdio_wait(lp))
 		return -ETIMEDOUT;
 
-	rc = __raw_readl(lp->base_addr + XEL_MDIORD_OFFSET);
+	rc = xemaclite_readl(lp->base_addr + XEL_MDIORD_OFFSET);
 
 	dev_dbg(&lp->ndev->dev,
 		"xemaclite_mdio_read(phy_id=%i, reg=%x) == %x\n",
@@ -783,13 +795,13 @@ static int xemaclite_mdio_write(struct m
 	 * Data register. Finally, set the Status bit in the MDIO Control
 	 * register to start a MDIO write transaction.
 	 */
-	ctrl_reg = __raw_readl(lp->base_addr + XEL_MDIOCTRL_OFFSET);
-	__raw_writel(~XEL_MDIOADDR_OP_MASK &
-		     ((phy_id << XEL_MDIOADDR_PHYADR_SHIFT) | reg),
-		     lp->base_addr + XEL_MDIOADDR_OFFSET);
-	__raw_writel(val, lp->base_addr + XEL_MDIOWR_OFFSET);
-	__raw_writel(ctrl_reg | XEL_MDIOCTRL_MDIOSTS_MASK,
-		     lp->base_addr + XEL_MDIOCTRL_OFFSET);
+	ctrl_reg = xemaclite_readl(lp->base_addr + XEL_MDIOCTRL_OFFSET);
+	xemaclite_writel(~XEL_MDIOADDR_OP_MASK &
+			 ((phy_id << XEL_MDIOADDR_PHYADR_SHIFT) | reg),
+			 lp->base_addr + XEL_MDIOADDR_OFFSET);
+	xemaclite_writel(val, lp->base_addr + XEL_MDIOWR_OFFSET);
+	xemaclite_writel(ctrl_reg | XEL_MDIOCTRL_MDIOSTS_MASK,
+			 lp->base_addr + XEL_MDIOCTRL_OFFSET);
 
 	return 0;
 }
@@ -836,8 +848,8 @@ static int xemaclite_mdio_setup(struct n
 	/* Enable the MDIO bus by asserting the enable bit in MDIO Control
 	 * register.
 	 */
-	__raw_writel(XEL_MDIOCTRL_MDIOEN_MASK,
-		     lp->base_addr + XEL_MDIOCTRL_OFFSET);
+	xemaclite_writel(XEL_MDIOCTRL_MDIOEN_MASK,
+			 lp->base_addr + XEL_MDIOCTRL_OFFSET);
 
 	bus = mdiobus_alloc();
 	if (!bus) {
@@ -1141,8 +1153,8 @@ static int xemaclite_of_probe(struct pla
 		dev_warn(dev, "No MAC address found\n");
 
 	/* Clear the Tx CSR's in case this is a restart */
-	__raw_writel(0, lp->base_addr + XEL_TSR_OFFSET);
-	__raw_writel(0, lp->base_addr + XEL_BUFFER_OFFSET + XEL_TSR_OFFSET);
+	xemaclite_writel(0, lp->base_addr + XEL_TSR_OFFSET);
+	xemaclite_writel(0, lp->base_addr + XEL_BUFFER_OFFSET + XEL_TSR_OFFSET);
 
 	/* Set the MAC address in the EmacLite device */
 	xemaclite_update_address(lp, ndev->dev_addr);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/fjes/fjes_main.c linux-libre-4.4.107-gnu/drivers/net/fjes/fjes_main.c
--- linux-libre-4.4-gnu/drivers/net/fjes/fjes_main.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/fjes/fjes_main.c	2017-12-20 04:05:01.000000000 -0500
@@ -1205,7 +1205,7 @@ static void fjes_netdev_setup(struct net
 	fjes_set_ethtool_ops(netdev);
 	netdev->mtu = fjes_support_mtu[0];
 	netdev->flags |= IFF_BROADCAST;
-	netdev->features |= NETIF_F_HW_CSUM | NETIF_F_HW_VLAN_CTAG_FILTER;
+	netdev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
 }
 
 static void fjes_irq_watch_task(struct work_struct *work)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/geneve.c linux-libre-4.4.107-gnu/drivers/net/geneve.c
--- linux-libre-4.4-gnu/drivers/net/geneve.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/geneve.c	2017-12-20 04:05:01.000000000 -0500
@@ -310,15 +310,15 @@ static int geneve_udp_encap_recv(struct
 
 	/* Need Geneve and inner Ethernet header to be present */
 	if (unlikely(!pskb_may_pull(skb, GENEVE_BASE_HLEN)))
-		goto error;
+		goto drop;
 
 	/* Return packets with reserved bits set */
 	geneveh = geneve_hdr(skb);
 	if (unlikely(geneveh->ver != GENEVE_VER))
-		goto error;
+		goto drop;
 
 	if (unlikely(geneveh->proto_type != htons(ETH_P_TEB)))
-		goto error;
+		goto drop;
 
 	opts_len = geneveh->opt_len * 4;
 	if (iptunnel_pull_header(skb, GENEVE_BASE_HLEN + opts_len,
@@ -336,10 +336,6 @@ drop:
 	/* Consume bad packet */
 	kfree_skb(skb);
 	return 0;
-
-error:
-	/* Let the UDP layer deal with the skb */
-	return 1;
 }
 
 static struct socket *geneve_create_sock(struct net *net, bool ipv6,
@@ -444,7 +440,7 @@ static struct sk_buff **geneve_gro_recei
 
 	skb_gro_pull(skb, gh_len);
 	skb_gro_postpull_rcsum(skb, gh, gh_len);
-	pp = ptype->callbacks.gro_receive(head, skb);
+	pp = call_gro_receive(ptype->callbacks.gro_receive, head, skb);
 
 out_unlock:
 	rcu_read_unlock();
@@ -819,7 +815,6 @@ static netdev_tx_t geneve_xmit_skb(struc
 	struct geneve_dev *geneve = netdev_priv(dev);
 	struct geneve_sock *gs4 = geneve->sock4;
 	struct rtable *rt = NULL;
-	const struct iphdr *iip; /* interior IP header */
 	int err = -EINVAL;
 	struct flowi4 fl4;
 	__u8 tos, ttl;
@@ -846,8 +841,6 @@ static netdev_tx_t geneve_xmit_skb(struc
 	sport = udp_flow_src_port(geneve->net, skb, 1, USHRT_MAX, true);
 	skb_reset_mac_header(skb);
 
-	iip = ip_hdr(skb);
-
 	if (info) {
 		const struct ip_tunnel_key *key = &info->key;
 		u8 *opts = NULL;
@@ -863,7 +856,7 @@ static netdev_tx_t geneve_xmit_skb(struc
 		if (unlikely(err))
 			goto err;
 
-		tos = ip_tunnel_ecn_encap(key->tos, iip, skb);
+		tos = ip_tunnel_ecn_encap(key->tos, ip_hdr(skb), skb);
 		ttl = key->ttl;
 		df = key->tun_flags & TUNNEL_DONT_FRAGMENT ? htons(IP_DF) : 0;
 	} else {
@@ -873,7 +866,7 @@ static netdev_tx_t geneve_xmit_skb(struc
 		if (unlikely(err))
 			goto err;
 
-		tos = ip_tunnel_ecn_encap(fl4.flowi4_tos, iip, skb);
+		tos = ip_tunnel_ecn_encap(fl4.flowi4_tos, ip_hdr(skb), skb);
 		ttl = geneve->ttl;
 		if (!ttl && IN_MULTICAST(ntohl(fl4.daddr)))
 			ttl = 1;
@@ -907,7 +900,6 @@ static netdev_tx_t geneve6_xmit_skb(stru
 	struct geneve_dev *geneve = netdev_priv(dev);
 	struct geneve_sock *gs6 = geneve->sock6;
 	struct dst_entry *dst = NULL;
-	const struct iphdr *iip; /* interior IP header */
 	int err = -EINVAL;
 	struct flowi6 fl6;
 	__u8 prio, ttl;
@@ -931,8 +923,6 @@ static netdev_tx_t geneve6_xmit_skb(stru
 	sport = udp_flow_src_port(geneve->net, skb, 1, USHRT_MAX, true);
 	skb_reset_mac_header(skb);
 
-	iip = ip_hdr(skb);
-
 	if (info) {
 		const struct ip_tunnel_key *key = &info->key;
 		u8 *opts = NULL;
@@ -949,7 +939,7 @@ static netdev_tx_t geneve6_xmit_skb(stru
 		if (unlikely(err))
 			goto err;
 
-		prio = ip_tunnel_ecn_encap(key->tos, iip, skb);
+		prio = ip_tunnel_ecn_encap(key->tos, ip_hdr(skb), skb);
 		ttl = key->ttl;
 	} else {
 		udp_csum = false;
@@ -958,7 +948,7 @@ static netdev_tx_t geneve6_xmit_skb(stru
 		if (unlikely(err))
 			goto err;
 
-		prio = ip_tunnel_ecn_encap(fl6.flowi6_tos, iip, skb);
+		prio = ip_tunnel_ecn_encap(fl6.flowi6_tos, ip_hdr(skb), skb);
 		ttl = geneve->ttl;
 		if (!ttl && ipv6_addr_is_multicast(&fl6.daddr))
 			ttl = 1;
@@ -998,6 +988,17 @@ static netdev_tx_t geneve_xmit(struct sk
 	return geneve_xmit_skb(skb, dev, info);
 }
 
+static int geneve_change_mtu(struct net_device *dev, int new_mtu)
+{
+	/* GENEVE overhead is not fixed, so we can't enforce a more
+	 * precise max MTU.
+	 */
+	if (new_mtu < 68 || new_mtu > IP_MAX_MTU)
+		return -EINVAL;
+	dev->mtu = new_mtu;
+	return 0;
+}
+
 static int geneve_fill_metadata_dst(struct net_device *dev, struct sk_buff *skb)
 {
 	struct ip_tunnel_info *info = skb_tunnel_info(skb);
@@ -1042,7 +1043,7 @@ static const struct net_device_ops genev
 	.ndo_stop		= geneve_stop,
 	.ndo_start_xmit		= geneve_xmit,
 	.ndo_get_stats64	= ip_tunnel_get_stats64,
-	.ndo_change_mtu		= eth_change_mtu,
+	.ndo_change_mtu		= geneve_change_mtu,
 	.ndo_validate_addr	= eth_validate_addr,
 	.ndo_set_mac_address	= eth_mac_addr,
 	.ndo_fill_metadata_dst	= geneve_fill_metadata_dst,
@@ -1349,11 +1350,21 @@ struct net_device *geneve_dev_create_fb(
 
 	err = geneve_configure(net, dev, &geneve_remote_unspec,
 			       0, 0, 0, htons(dst_port), true);
-	if (err) {
-		free_netdev(dev);
-		return ERR_PTR(err);
-	}
+	if (err)
+		goto err;
+
+	/* openvswitch users expect packet sizes to be unrestricted,
+	 * so set the largest MTU we can.
+	 */
+	err = geneve_change_mtu(dev, IP_MAX_MTU);
+	if (err)
+		goto err;
+
 	return dev;
+
+ err:
+	free_netdev(dev);
+	return ERR_PTR(err);
 }
 EXPORT_SYMBOL_GPL(geneve_dev_create_fb);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/hamradio/mkiss.c linux-libre-4.4.107-gnu/drivers/net/hamradio/mkiss.c
--- linux-libre-4.4-gnu/drivers/net/hamradio/mkiss.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/hamradio/mkiss.c	2017-12-20 04:05:01.000000000 -0500
@@ -648,8 +648,8 @@ static void ax_setup(struct net_device *
 {
 	/* Finish setting up the DEVICE info. */
 	dev->mtu             = AX_MTU;
-	dev->hard_header_len = 0;
-	dev->addr_len        = 0;
+	dev->hard_header_len = AX25_MAX_HEADER_LEN;
+	dev->addr_len        = AX25_ADDR_LEN;
 	dev->type            = ARPHRD_AX25;
 	dev->tx_queue_len    = 10;
 	dev->header_ops      = &ax25_header_ops;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/hyperv/netvsc_drv.c linux-libre-4.4.107-gnu/drivers/net/hyperv/netvsc_drv.c
--- linux-libre-4.4-gnu/drivers/net/hyperv/netvsc_drv.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/hyperv/netvsc_drv.c	2017-12-20 04:05:01.000000000 -0500
@@ -40,6 +40,8 @@
 
 #include "hyperv_net.h"
 
+/* Restrict GSO size to account for NVGRE */
+#define NETVSC_GSO_MAX_SIZE	62768
 
 #define RING_SIZE_MIN 64
 static int ring_size = 128;
@@ -195,65 +197,6 @@ static void *init_ppi_data(struct rndis_
 	return ppi;
 }
 
-union sub_key {
-	u64 k;
-	struct {
-		u8 pad[3];
-		u8 kb;
-		u32 ka;
-	};
-};
-
-/* Toeplitz hash function
- * data: network byte order
- * return: host byte order
- */
-static u32 comp_hash(u8 *key, int klen, void *data, int dlen)
-{
-	union sub_key subk;
-	int k_next = 4;
-	u8 dt;
-	int i, j;
-	u32 ret = 0;
-
-	subk.k = 0;
-	subk.ka = ntohl(*(u32 *)key);
-
-	for (i = 0; i < dlen; i++) {
-		subk.kb = key[k_next];
-		k_next = (k_next + 1) % klen;
-		dt = ((u8 *)data)[i];
-		for (j = 0; j < 8; j++) {
-			if (dt & 0x80)
-				ret ^= subk.ka;
-			dt <<= 1;
-			subk.k <<= 1;
-		}
-	}
-
-	return ret;
-}
-
-static bool netvsc_set_hash(u32 *hash, struct sk_buff *skb)
-{
-	struct flow_keys flow;
-	int data_len;
-
-	if (!skb_flow_dissect_flow_keys(skb, &flow, 0) ||
-	    !(flow.basic.n_proto == htons(ETH_P_IP) ||
-	      flow.basic.n_proto == htons(ETH_P_IPV6)))
-		return false;
-
-	if (flow.basic.ip_proto == IPPROTO_TCP)
-		data_len = 12;
-	else
-		data_len = 8;
-
-	*hash = comp_hash(netvsc_hash_key, HASH_KEYLEN, &flow, data_len);
-
-	return true;
-}
-
 static u16 netvsc_select_queue(struct net_device *ndev, struct sk_buff *skb,
 			void *accel_priv, select_queue_fallback_t fallback)
 {
@@ -266,11 +209,9 @@ static u16 netvsc_select_queue(struct ne
 	if (nvsc_dev == NULL || ndev->real_num_tx_queues <= 1)
 		return 0;
 
-	if (netvsc_set_hash(&hash, skb)) {
-		q_idx = nvsc_dev->send_table[hash % VRSS_SEND_TAB_SIZE] %
-			ndev->real_num_tx_queues;
-		skb_set_hash(skb, hash, PKT_HASH_TYPE_L3);
-	}
+	hash = skb_get_hash(skb);
+	q_idx = nvsc_dev->send_table[hash % VRSS_SEND_TAB_SIZE] %
+		ndev->real_num_tx_queues;
 
 	return q_idx;
 }
@@ -1139,6 +1080,7 @@ static int netvsc_probe(struct hv_device
 	nvdev = hv_get_drvdata(dev);
 	netif_set_real_num_tx_queues(net, nvdev->num_chn);
 	netif_set_real_num_rx_queues(net, nvdev->num_chn);
+	netif_set_gso_max_size(net, NETVSC_GSO_MAX_SIZE);
 
 	ret = register_netdev(net);
 	if (ret != 0) {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ieee802154/atusb.c linux-libre-4.4.107-gnu/drivers/net/ieee802154/atusb.c
--- linux-libre-4.4-gnu/drivers/net/ieee802154/atusb.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ieee802154/atusb.c	2017-12-20 04:05:01.000000000 -0500
@@ -110,13 +110,26 @@ static int atusb_read_reg(struct atusb *
 {
 	struct usb_device *usb_dev = atusb->usb_dev;
 	int ret;
+	uint8_t *buffer;
 	uint8_t value;
 
+	buffer = kmalloc(1, GFP_KERNEL);
+	if (!buffer)
+		return -ENOMEM;
+
 	dev_dbg(&usb_dev->dev, "atusb: reg = 0x%x\n", reg);
 	ret = atusb_control_msg(atusb, usb_rcvctrlpipe(usb_dev, 0),
 				ATUSB_REG_READ, ATUSB_REQ_FROM_DEV,
-				0, reg, &value, 1, 1000);
-	return ret >= 0 ? value : ret;
+				0, reg, buffer, 1, 1000);
+
+	if (ret >= 0) {
+		value = buffer[0];
+		kfree(buffer);
+		return value;
+	} else {
+		kfree(buffer);
+		return ret;
+	}
 }
 
 static int atusb_write_subreg(struct atusb *atusb, uint8_t reg, uint8_t mask,
@@ -517,9 +530,13 @@ static struct ieee802154_ops atusb_ops =
 static int atusb_get_and_show_revision(struct atusb *atusb)
 {
 	struct usb_device *usb_dev = atusb->usb_dev;
-	unsigned char buffer[3];
+	unsigned char *buffer;
 	int ret;
 
+	buffer = kmalloc(3, GFP_KERNEL);
+	if (!buffer)
+		return -ENOMEM;
+
 	/* Get a couple of the ATMega Firmware values */
 	ret = atusb_control_msg(atusb, usb_rcvctrlpipe(usb_dev, 0),
 				ATUSB_ID, ATUSB_REQ_FROM_DEV, 0, 0,
@@ -535,15 +552,20 @@ static int atusb_get_and_show_revision(s
 		dev_info(&usb_dev->dev, "Please update to version 0.2 or newer");
 	}
 
+	kfree(buffer);
 	return ret;
 }
 
 static int atusb_get_and_show_build(struct atusb *atusb)
 {
 	struct usb_device *usb_dev = atusb->usb_dev;
-	char build[ATUSB_BUILD_SIZE + 1];
+	char *build;
 	int ret;
 
+	build = kmalloc(ATUSB_BUILD_SIZE + 1, GFP_KERNEL);
+	if (!build)
+		return -ENOMEM;
+
 	ret = atusb_control_msg(atusb, usb_rcvctrlpipe(usb_dev, 0),
 				ATUSB_BUILD, ATUSB_REQ_FROM_DEV, 0, 0,
 				build, ATUSB_BUILD_SIZE, 1000);
@@ -552,6 +574,7 @@ static int atusb_get_and_show_build(stru
 		dev_info(&usb_dev->dev, "Firmware: build %s\n", build);
 	}
 
+	kfree(build);
 	return ret;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ieee802154/fakelb.c linux-libre-4.4.107-gnu/drivers/net/ieee802154/fakelb.c
--- linux-libre-4.4-gnu/drivers/net/ieee802154/fakelb.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ieee802154/fakelb.c	2017-12-20 04:05:01.000000000 -0500
@@ -30,7 +30,7 @@
 static int numlbs = 2;
 
 static LIST_HEAD(fakelb_phys);
-static DEFINE_SPINLOCK(fakelb_phys_lock);
+static DEFINE_MUTEX(fakelb_phys_lock);
 
 static LIST_HEAD(fakelb_ifup_phys);
 static DEFINE_RWLOCK(fakelb_ifup_phys_lock);
@@ -180,9 +180,9 @@ static int fakelb_add_one(struct device
 	if (err)
 		goto err_reg;
 
-	spin_lock(&fakelb_phys_lock);
+	mutex_lock(&fakelb_phys_lock);
 	list_add_tail(&phy->list, &fakelb_phys);
-	spin_unlock(&fakelb_phys_lock);
+	mutex_unlock(&fakelb_phys_lock);
 
 	return 0;
 
@@ -214,10 +214,10 @@ static int fakelb_probe(struct platform_
 	return 0;
 
 err_slave:
-	spin_lock(&fakelb_phys_lock);
+	mutex_lock(&fakelb_phys_lock);
 	list_for_each_entry_safe(phy, tmp, &fakelb_phys, list)
 		fakelb_del(phy);
-	spin_unlock(&fakelb_phys_lock);
+	mutex_unlock(&fakelb_phys_lock);
 	return err;
 }
 
@@ -225,10 +225,10 @@ static int fakelb_remove(struct platform
 {
 	struct fakelb_phy *phy, *tmp;
 
-	spin_lock(&fakelb_phys_lock);
+	mutex_lock(&fakelb_phys_lock);
 	list_for_each_entry_safe(phy, tmp, &fakelb_phys, list)
 		fakelb_del(phy);
-	spin_unlock(&fakelb_phys_lock);
+	mutex_unlock(&fakelb_phys_lock);
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ipvlan/ipvlan_core.c linux-libre-4.4.107-gnu/drivers/net/ipvlan/ipvlan_core.c
--- linux-libre-4.4-gnu/drivers/net/ipvlan/ipvlan_core.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ipvlan/ipvlan_core.c	2017-12-20 04:05:01.000000000 -0500
@@ -388,7 +388,7 @@ static int ipvlan_process_v6_outbound(st
 	struct dst_entry *dst;
 	int err, ret = NET_XMIT_DROP;
 	struct flowi6 fl6 = {
-		.flowi6_iif = dev->ifindex,
+		.flowi6_oif = dev->ifindex,
 		.daddr = ip6h->daddr,
 		.saddr = ip6h->saddr,
 		.flowi6_flags = FLOWI_FLAG_ANYSRC,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/irda/irda-usb.c linux-libre-4.4.107-gnu/drivers/net/irda/irda-usb.c
--- linux-libre-4.4-gnu/drivers/net/irda/irda-usb.c	2016-01-10 21:05:59.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/irda/irda-usb.c	2017-12-20 11:28:10.000000000 -0500
@@ -1074,7 +1074,7 @@ static int stir421x_patch_device(struct
 
         /*(DEBLOBBED)*/
         sprintf(stir421x_fw_name, "/*(DEBLOBBED)*/",
-                self->usbdev->descriptor.bcdDevice);
+		le16_to_cpu(self->usbdev->descriptor.bcdDevice));
         ret = reject_firmware(&fw, stir421x_fw_name, &self->usbdev->dev);
         if (ret < 0)
                 return ret;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/irda/irtty-sir.c linux-libre-4.4.107-gnu/drivers/net/irda/irtty-sir.c
--- linux-libre-4.4-gnu/drivers/net/irda/irtty-sir.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/irda/irtty-sir.c	2017-12-20 04:05:01.000000000 -0500
@@ -430,16 +430,6 @@ static int irtty_open(struct tty_struct
 
 	/* Module stuff handled via irda_ldisc.owner - Jean II */
 
-	/* First make sure we're not already connected. */
-	if (tty->disc_data != NULL) {
-		priv = tty->disc_data;
-		if (priv && priv->magic == IRTTY_MAGIC) {
-			ret = -EEXIST;
-			goto out;
-		}
-		tty->disc_data = NULL;		/* ### */
-	}
-
 	/* stop the underlying  driver */
 	irtty_stop_receiver(tty, TRUE);
 	if (tty->ops->stop)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/irda/mcs7780.c linux-libre-4.4.107-gnu/drivers/net/irda/mcs7780.c
--- linux-libre-4.4-gnu/drivers/net/irda/mcs7780.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/irda/mcs7780.c	2017-12-20 04:05:01.000000000 -0500
@@ -141,9 +141,19 @@ static int mcs_set_reg(struct mcs_cb *mc
 static int mcs_get_reg(struct mcs_cb *mcs, __u16 reg, __u16 * val)
 {
 	struct usb_device *dev = mcs->usbdev;
-	int ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), MCS_RDREQ,
-				  MCS_RD_RTYPE, 0, reg, val, 2,
-				  msecs_to_jiffies(MCS_CTRL_TIMEOUT));
+	void *dmabuf;
+	int ret;
+
+	dmabuf = kmalloc(sizeof(__u16), GFP_KERNEL);
+	if (!dmabuf)
+		return -ENOMEM;
+
+	ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), MCS_RDREQ,
+			      MCS_RD_RTYPE, 0, reg, dmabuf, 2,
+			      msecs_to_jiffies(MCS_CTRL_TIMEOUT));
+
+	memcpy(val, dmabuf, sizeof(__u16));
+	kfree(dmabuf);
 
 	return ret;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/loopback.c linux-libre-4.4.107-gnu/drivers/net/loopback.c
--- linux-libre-4.4-gnu/drivers/net/loopback.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/loopback.c	2017-12-20 04:05:01.000000000 -0500
@@ -164,6 +164,7 @@ static void loopback_setup(struct net_de
 {
 	dev->mtu		= 64 * 1024;
 	dev->hard_header_len	= ETH_HLEN;	/* 14	*/
+	dev->min_header_len	= ETH_HLEN;	/* 14	*/
 	dev->addr_len		= ETH_ALEN;	/* 6	*/
 	dev->type		= ARPHRD_LOOPBACK;	/* 0x0001*/
 	dev->flags		= IFF_LOOPBACK;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/macvlan.c linux-libre-4.4.107-gnu/drivers/net/macvlan.c
--- linux-libre-4.4-gnu/drivers/net/macvlan.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/macvlan.c	2017-12-20 04:05:01.000000000 -0500
@@ -441,7 +441,7 @@ static rx_handler_result_t macvlan_handl
 					      struct macvlan_dev, list);
 	else
 		vlan = macvlan_hash_lookup(port, eth->h_dest);
-	if (vlan == NULL)
+	if (!vlan || vlan->mode == MACVLAN_MODE_SOURCE)
 		return RX_HANDLER_PASS;
 
 	dev = vlan->dev;
@@ -1110,6 +1110,7 @@ static int macvlan_port_create(struct ne
 static void macvlan_port_destroy(struct net_device *dev)
 {
 	struct macvlan_port *port = macvlan_port_get_rtnl(dev);
+	struct sk_buff *skb;
 
 	dev->priv_flags &= ~IFF_MACVLAN_PORT;
 	netdev_rx_handler_unregister(dev);
@@ -1118,7 +1119,15 @@ static void macvlan_port_destroy(struct
 	 * but we need to cancel it and purge left skbs if any.
 	 */
 	cancel_work_sync(&port->bc_work);
-	__skb_queue_purge(&port->bc_queue);
+
+	while ((skb = __skb_dequeue(&port->bc_queue))) {
+		const struct macvlan_dev *src = MACVLAN_SKB_CB(skb)->src;
+
+		if (src)
+			dev_put(src->dev);
+
+		kfree_skb(skb);
+	}
 
 	kfree_rcu(port, rcu);
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/macvtap.c linux-libre-4.4.107-gnu/drivers/net/macvtap.c
--- linux-libre-4.4-gnu/drivers/net/macvtap.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/macvtap.c	2017-12-20 04:05:01.000000000 -0500
@@ -725,7 +725,7 @@ static ssize_t macvtap_get_user(struct m
 	ssize_t n;
 
 	if (q->flags & IFF_VNET_HDR) {
-		vnet_hdr_len = q->vnet_hdr_sz;
+		vnet_hdr_len = READ_ONCE(q->vnet_hdr_sz);
 
 		err = -EINVAL;
 		if (len < vnet_hdr_len)
@@ -760,6 +760,8 @@ static ssize_t macvtap_get_user(struct m
 			macvtap16_to_cpu(q, vnet_hdr.hdr_len) : GOODCOPY_LEN;
 		if (copylen > good_linear)
 			copylen = good_linear;
+		else if (copylen < ETH_HLEN)
+			copylen = ETH_HLEN;
 		linear = copylen;
 		i = *from;
 		iov_iter_advance(&i, copylen);
@@ -769,10 +771,11 @@ static ssize_t macvtap_get_user(struct m
 
 	if (!zerocopy) {
 		copylen = len;
-		if (macvtap16_to_cpu(q, vnet_hdr.hdr_len) > good_linear)
+		linear = macvtap16_to_cpu(q, vnet_hdr.hdr_len);
+		if (linear > good_linear)
 			linear = good_linear;
-		else
-			linear = macvtap16_to_cpu(q, vnet_hdr.hdr_len);
+		else if (linear < ETH_HLEN)
+			linear = ETH_HLEN;
 	}
 
 	skb = macvtap_alloc_skb(&q->sk, MACVTAP_RESERVE, copylen,
@@ -862,7 +865,7 @@ static ssize_t macvtap_put_user(struct m
 
 	if (q->flags & IFF_VNET_HDR) {
 		struct virtio_net_hdr vnet_hdr;
-		vnet_hdr_len = q->vnet_hdr_sz;
+		vnet_hdr_len = READ_ONCE(q->vnet_hdr_sz);
 		if (iov_iter_count(iter) < vnet_hdr_len)
 			return -EINVAL;
 
@@ -1114,6 +1117,8 @@ static long macvtap_ioctl(struct file *f
 	case TUNSETSNDBUF:
 		if (get_user(s, sp))
 			return -EFAULT;
+		if (s <= 0)
+			return -EINVAL;
 
 		q->sk.sk_sndbuf = s;
 		return 0;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/phy/bcm63xx.c linux-libre-4.4.107-gnu/drivers/net/phy/bcm63xx.c
--- linux-libre-4.4-gnu/drivers/net/phy/bcm63xx.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/phy/bcm63xx.c	2017-12-20 04:05:01.000000000 -0500
@@ -21,6 +21,23 @@ MODULE_DESCRIPTION("Broadcom 63xx intern
 MODULE_AUTHOR("Maxime Bizon <mbizon@freebox.fr>");
 MODULE_LICENSE("GPL");
 
+static int bcm63xx_config_intr(struct phy_device *phydev)
+{
+	int reg, err;
+
+	reg = phy_read(phydev, MII_BCM63XX_IR);
+	if (reg < 0)
+		return reg;
+
+	if (phydev->interrupts == PHY_INTERRUPT_ENABLED)
+		reg &= ~MII_BCM63XX_IR_GMASK;
+	else
+		reg |= MII_BCM63XX_IR_GMASK;
+
+	err = phy_write(phydev, MII_BCM63XX_IR, reg);
+	return err;
+}
+
 static int bcm63xx_config_init(struct phy_device *phydev)
 {
 	int reg, err;
@@ -55,7 +72,7 @@ static struct phy_driver bcm63xx_driver[
 	.config_aneg	= genphy_config_aneg,
 	.read_status	= genphy_read_status,
 	.ack_interrupt	= bcm_phy_ack_intr,
-	.config_intr	= bcm_phy_config_intr,
+	.config_intr	= bcm63xx_config_intr,
 	.driver		= { .owner = THIS_MODULE },
 }, {
 	/* same phy as above, with just a different OUI */
@@ -68,7 +85,7 @@ static struct phy_driver bcm63xx_driver[
 	.config_aneg	= genphy_config_aneg,
 	.read_status	= genphy_read_status,
 	.ack_interrupt	= bcm_phy_ack_intr,
-	.config_intr	= bcm_phy_config_intr,
+	.config_intr	= bcm63xx_config_intr,
 	.driver		= { .owner = THIS_MODULE },
 } };
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/phy/dp83640.c linux-libre-4.4.107-gnu/drivers/net/phy/dp83640.c
--- linux-libre-4.4-gnu/drivers/net/phy/dp83640.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/phy/dp83640.c	2017-12-20 04:05:01.000000000 -0500
@@ -845,6 +845,11 @@ static void decode_rxts(struct dp83640_p
 	struct skb_shared_hwtstamps *shhwtstamps = NULL;
 	struct sk_buff *skb;
 	unsigned long flags;
+	u8 overflow;
+
+	overflow = (phy_rxts->ns_hi >> 14) & 0x3;
+	if (overflow)
+		pr_debug("rx timestamp queue overflow, count %d\n", overflow);
 
 	spin_lock_irqsave(&dp83640->rx_lock, flags);
 
@@ -887,6 +892,7 @@ static void decode_txts(struct dp83640_p
 	struct skb_shared_hwtstamps shhwtstamps;
 	struct sk_buff *skb;
 	u64 ns;
+	u8 overflow;
 
 	/* We must already have the skb that triggered this. */
 
@@ -896,6 +902,17 @@ static void decode_txts(struct dp83640_p
 		pr_debug("have timestamp but tx_queue empty\n");
 		return;
 	}
+
+	overflow = (phy_txts->ns_hi >> 14) & 0x3;
+	if (overflow) {
+		pr_debug("tx timestamp queue overflow, count %d\n", overflow);
+		while (skb) {
+			kfree_skb(skb);
+			skb = skb_dequeue(&dp83640->tx_queue);
+		}
+		return;
+	}
+
 	ns = phy2txts(phy_txts);
 	memset(&shhwtstamps, 0, sizeof(shhwtstamps));
 	shhwtstamps.hwtstamp = ns_to_ktime(ns);
@@ -1419,8 +1436,6 @@ static bool dp83640_rxtstamp(struct phy_
 		skb_info->tmo = jiffies + SKB_TIMESTAMP_TIMEOUT;
 		skb_queue_tail(&dp83640->rx_queue, skb);
 		schedule_delayed_work(&dp83640->ts_work, SKB_TIMESTAMP_TIMEOUT);
-	} else {
-		netif_rx_ni(skb);
 	}
 
 	return true;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/phy/dp83867.c linux-libre-4.4.107-gnu/drivers/net/phy/dp83867.c
--- linux-libre-4.4-gnu/drivers/net/phy/dp83867.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/phy/dp83867.c	2017-12-20 04:05:01.000000000 -0500
@@ -29,6 +29,7 @@
 #define MII_DP83867_MICR	0x12
 #define MII_DP83867_ISR		0x13
 #define DP83867_CTRL		0x1f
+#define DP83867_CFG3		0x1e
 
 /* Extended Registers */
 #define DP83867_RGMIICTL	0x0032
@@ -89,6 +90,8 @@ static int dp83867_config_intr(struct ph
 		micr_status |=
 			(MII_DP83867_MICR_AN_ERR_INT_EN |
 			MII_DP83867_MICR_SPEED_CHNG_INT_EN |
+			MII_DP83867_MICR_AUTONEG_COMP_INT_EN |
+			MII_DP83867_MICR_LINK_STS_CHNG_INT_EN |
 			MII_DP83867_MICR_DUP_MODE_CHNG_INT_EN |
 			MII_DP83867_MICR_SLEEP_MODE_CHNG_INT_EN);
 
@@ -184,6 +187,13 @@ static int dp83867_config_init(struct ph
 				       DP83867_DEVADDR, phydev->addr, delay);
 	}
 
+	/* Enable Interrupt output INT_OE in CFG3 register */
+	if (phy_interrupt_is_valid(phydev)) {
+		val = phy_read(phydev, DP83867_CFG3);
+		val |= BIT(7);
+		phy_write(phydev, DP83867_CFG3, val);
+	}
+
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/phy/marvell.c linux-libre-4.4.107-gnu/drivers/net/phy/marvell.c
--- linux-libre-4.4-gnu/drivers/net/phy/marvell.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/phy/marvell.c	2017-12-20 04:05:01.000000000 -0500
@@ -203,34 +203,6 @@ static int marvell_config_aneg(struct ph
 {
 	int err;
 
-	/* The Marvell PHY has an errata which requires
-	 * that certain registers get written in order
-	 * to restart autonegotiation */
-	err = phy_write(phydev, MII_BMCR, BMCR_RESET);
-
-	if (err < 0)
-		return err;
-
-	err = phy_write(phydev, 0x1d, 0x1f);
-	if (err < 0)
-		return err;
-
-	err = phy_write(phydev, 0x1e, 0x200c);
-	if (err < 0)
-		return err;
-
-	err = phy_write(phydev, 0x1d, 0x5);
-	if (err < 0)
-		return err;
-
-	err = phy_write(phydev, 0x1e, 0);
-	if (err < 0)
-		return err;
-
-	err = phy_write(phydev, 0x1e, 0x100);
-	if (err < 0)
-		return err;
-
 	err = marvell_set_polarity(phydev, phydev->mdix);
 	if (err < 0)
 		return err;
@@ -264,6 +236,42 @@ static int marvell_config_aneg(struct ph
 	return 0;
 }
 
+static int m88e1101_config_aneg(struct phy_device *phydev)
+{
+	int err;
+
+	/* This Marvell PHY has an errata which requires
+	 * that certain registers get written in order
+	 * to restart autonegotiation
+	 */
+	err = phy_write(phydev, MII_BMCR, BMCR_RESET);
+
+	if (err < 0)
+		return err;
+
+	err = phy_write(phydev, 0x1d, 0x1f);
+	if (err < 0)
+		return err;
+
+	err = phy_write(phydev, 0x1e, 0x200c);
+	if (err < 0)
+		return err;
+
+	err = phy_write(phydev, 0x1d, 0x5);
+	if (err < 0)
+		return err;
+
+	err = phy_write(phydev, 0x1e, 0);
+	if (err < 0)
+		return err;
+
+	err = phy_write(phydev, 0x1e, 0x100);
+	if (err < 0)
+		return err;
+
+	return marvell_config_aneg(phydev);
+}
+
 #ifdef CONFIG_OF_MDIO
 /*
  * Set and/or override some configuration registers based on the
@@ -814,8 +822,6 @@ static int marvell_read_status(struct ph
 		phydev->lp_advertising = mii_stat1000_to_ethtool_lpa_t(lpagb) |
 					 mii_lpa_to_ethtool_lpa_t(lpa);
 
-		lpa &= adv;
-
 		if (status & MII_M1011_PHY_STATUS_FULLDUPLEX)
 			phydev->duplex = DUPLEX_FULL;
 		else
@@ -993,7 +999,7 @@ static struct phy_driver marvell_drivers
 		.name = "Marvell 88E1101",
 		.features = PHY_GBIT_FEATURES,
 		.flags = PHY_HAS_INTERRUPT,
-		.config_aneg = &marvell_config_aneg,
+		.config_aneg = &m88e1101_config_aneg,
 		.read_status = &genphy_read_status,
 		.ack_interrupt = &marvell_ack_interrupt,
 		.config_intr = &marvell_config_intr,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/phy/mdio-bcm-iproc.c linux-libre-4.4.107-gnu/drivers/net/phy/mdio-bcm-iproc.c
--- linux-libre-4.4-gnu/drivers/net/phy/mdio-bcm-iproc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/phy/mdio-bcm-iproc.c	2017-12-20 04:05:01.000000000 -0500
@@ -81,8 +81,6 @@ static int iproc_mdio_read(struct mii_bu
 	if (rc)
 		return rc;
 
-	iproc_mdio_config_clk(priv->base);
-
 	/* Prepare the read operation */
 	cmd = (MII_DATA_TA_VAL << MII_DATA_TA_SHIFT) |
 		(reg << MII_DATA_RA_SHIFT) |
@@ -112,8 +110,6 @@ static int iproc_mdio_write(struct mii_b
 	if (rc)
 		return rc;
 
-	iproc_mdio_config_clk(priv->base);
-
 	/* Prepare the write operation */
 	cmd = (MII_DATA_TA_VAL << MII_DATA_TA_SHIFT) |
 		(reg << MII_DATA_RA_SHIFT) |
@@ -163,6 +159,8 @@ static int iproc_mdio_probe(struct platf
 	bus->read = iproc_mdio_read;
 	bus->write = iproc_mdio_write;
 
+	iproc_mdio_config_clk(priv->base);
+
 	rc = of_mdiobus_register(bus, pdev->dev.of_node);
 	if (rc) {
 		dev_err(&pdev->dev, "MDIO bus registration failed\n");
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/phy/micrel.c linux-libre-4.4.107-gnu/drivers/net/phy/micrel.c
--- linux-libre-4.4-gnu/drivers/net/phy/micrel.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/phy/micrel.c	2017-12-20 04:05:01.000000000 -0500
@@ -539,6 +539,8 @@ static int ksz9031_read_status(struct ph
 	if ((regval & 0xFF) == 0xFF) {
 		phy_init_hw(phydev);
 		phydev->link = 0;
+		if (phydev->drv->config_intr && phy_interrupt_is_valid(phydev))
+			phydev->drv->config_intr(phydev);
 	}
 
 	return 0;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/phy/phy.c linux-libre-4.4.107-gnu/drivers/net/phy/phy.c
--- linux-libre-4.4-gnu/drivers/net/phy/phy.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/phy/phy.c	2017-12-20 04:05:01.000000000 -0500
@@ -538,7 +538,7 @@ void phy_stop_machine(struct phy_device
 	cancel_delayed_work_sync(&phydev->state_queue);
 
 	mutex_lock(&phydev->lock);
-	if (phydev->state > PHY_UP)
+	if (phydev->state > PHY_UP && phydev->state != PHY_HALTED)
 		phydev->state = PHY_UP;
 	mutex_unlock(&phydev->lock);
 }
@@ -640,8 +640,10 @@ phy_err:
 int phy_start_interrupts(struct phy_device *phydev)
 {
 	atomic_set(&phydev->irq_disable, 0);
-	if (request_irq(phydev->irq, phy_interrupt, 0, "phy_interrupt",
-			phydev) < 0) {
+	if (request_irq(phydev->irq, phy_interrupt,
+				IRQF_SHARED,
+				"phy_interrupt",
+				phydev) < 0) {
 		pr_warn("%s: Can't get IRQ %d (PHY)\n",
 			phydev->bus->name, phydev->irq);
 		phydev->irq = PHY_POLL;
@@ -916,6 +918,15 @@ void phy_state_machine(struct work_struc
 			if (old_link != phydev->link)
 				phydev->state = PHY_CHANGELINK;
 		}
+		/*
+		 * Failsafe: check that nobody set phydev->link=0 between two
+		 * poll cycles, otherwise we won't leave RUNNING state as long
+		 * as link remains down.
+		 */
+		if (!phydev->link && phydev->state == PHY_RUNNING) {
+			phydev->state = PHY_CHANGELINK;
+			dev_err(&phydev->dev, "no link in PHY_RUNNING\n");
+		}
 		break;
 	case PHY_CHANGELINK:
 		err = phy_read_status(phydev);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/phy/phy_device.c linux-libre-4.4.107-gnu/drivers/net/phy/phy_device.c
--- linux-libre-4.4-gnu/drivers/net/phy/phy_device.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/phy/phy_device.c	2017-12-20 04:05:01.000000000 -0500
@@ -1368,6 +1368,8 @@ static int phy_remove(struct device *dev
 {
 	struct phy_device *phydev = to_phy_device(dev);
 
+	cancel_delayed_work_sync(&phydev->state_queue);
+
 	mutex_lock(&phydev->lock);
 	phydev->state = PHY_DOWN;
 	mutex_unlock(&phydev->lock);
@@ -1442,7 +1444,7 @@ static struct phy_driver genphy_driver[]
 	.phy_id		= 0xffffffff,
 	.phy_id_mask	= 0xffffffff,
 	.name		= "Generic PHY",
-	.soft_reset	= genphy_soft_reset,
+	.soft_reset	= genphy_no_soft_reset,
 	.config_init	= genphy_config_init,
 	.features	= PHY_GBIT_FEATURES | SUPPORTED_MII |
 			  SUPPORTED_AUI | SUPPORTED_FIBRE |
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/phy/spi_ks8995.c linux-libre-4.4.107-gnu/drivers/net/phy/spi_ks8995.c
--- linux-libre-4.4-gnu/drivers/net/phy/spi_ks8995.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/phy/spi_ks8995.c	2017-12-20 04:05:01.000000000 -0500
@@ -310,6 +310,7 @@ static int ks8995_probe(struct spi_devic
 	if (err)
 		return err;
 
+	sysfs_attr_init(&ks->regs_attr.attr);
 	err = sysfs_create_bin_file(&spi->dev.kobj, &ks->regs_attr);
 	if (err) {
 		dev_err(&spi->dev, "unable to create sysfs file, err=%d\n",
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ppp/ppp_generic.c linux-libre-4.4.107-gnu/drivers/net/ppp/ppp_generic.c
--- linux-libre-4.4-gnu/drivers/net/ppp/ppp_generic.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ppp/ppp_generic.c	2017-12-20 04:05:01.000000000 -0500
@@ -567,7 +567,7 @@ static int get_filter(void __user *arg,
 
 static long ppp_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 {
-	struct ppp_file *pf = file->private_data;
+	struct ppp_file *pf;
 	struct ppp *ppp;
 	int err = -EFAULT, val, val2, i;
 	struct ppp_idle idle;
@@ -577,9 +577,14 @@ static long ppp_ioctl(struct file *file,
 	void __user *argp = (void __user *)arg;
 	int __user *p = argp;
 
-	if (!pf)
-		return ppp_unattached_ioctl(current->nsproxy->net_ns,
-					pf, file, cmd, arg);
+	mutex_lock(&ppp_mutex);
+
+	pf = file->private_data;
+	if (!pf) {
+		err = ppp_unattached_ioctl(current->nsproxy->net_ns,
+					   pf, file, cmd, arg);
+		goto out;
+	}
 
 	if (cmd == PPPIOCDETACH) {
 		/*
@@ -594,7 +599,6 @@ static long ppp_ioctl(struct file *file,
 		 * this fd and reopening /dev/ppp.
 		 */
 		err = -EINVAL;
-		mutex_lock(&ppp_mutex);
 		if (pf->kind == INTERFACE) {
 			ppp = PF_TO_PPP(pf);
 			rtnl_lock();
@@ -608,15 +612,13 @@ static long ppp_ioctl(struct file *file,
 		} else
 			pr_warn("PPPIOCDETACH file->f_count=%ld\n",
 				atomic_long_read(&file->f_count));
-		mutex_unlock(&ppp_mutex);
-		return err;
+		goto out;
 	}
 
 	if (pf->kind == CHANNEL) {
 		struct channel *pch;
 		struct ppp_channel *chan;
 
-		mutex_lock(&ppp_mutex);
 		pch = PF_TO_CHANNEL(pf);
 
 		switch (cmd) {
@@ -638,17 +640,16 @@ static long ppp_ioctl(struct file *file,
 				err = chan->ops->ioctl(chan, cmd, arg);
 			up_read(&pch->chan_sem);
 		}
-		mutex_unlock(&ppp_mutex);
-		return err;
+		goto out;
 	}
 
 	if (pf->kind != INTERFACE) {
 		/* can't happen */
 		pr_err("PPP: not interface or channel??\n");
-		return -EINVAL;
+		err = -EINVAL;
+		goto out;
 	}
 
-	mutex_lock(&ppp_mutex);
 	ppp = PF_TO_PPP(pf);
 	switch (cmd) {
 	case PPPIOCSMRU:
@@ -823,7 +824,10 @@ static long ppp_ioctl(struct file *file,
 	default:
 		err = -ENOTTY;
 	}
+
+out:
 	mutex_unlock(&ppp_mutex);
+
 	return err;
 }
 
@@ -836,7 +840,6 @@ static int ppp_unattached_ioctl(struct n
 	struct ppp_net *pn;
 	int __user *p = (int __user *)arg;
 
-	mutex_lock(&ppp_mutex);
 	switch (cmd) {
 	case PPPIOCNEWUNIT:
 		/* Create a new ppp unit */
@@ -886,7 +889,7 @@ static int ppp_unattached_ioctl(struct n
 	default:
 		err = -ENOTTY;
 	}
-	mutex_unlock(&ppp_mutex);
+
 	return err;
 }
 
@@ -939,6 +942,7 @@ static __net_exit void ppp_exit_net(stru
 	unregister_netdevice_many(&list);
 	rtnl_unlock();
 
+	mutex_destroy(&pn->all_ppp_mutex);
 	idr_destroy(&pn->units_idr);
 }
 
@@ -1107,7 +1111,17 @@ ppp_get_stats64(struct net_device *dev,
 static struct lock_class_key ppp_tx_busylock;
 static int ppp_dev_init(struct net_device *dev)
 {
+	struct ppp *ppp;
+
 	dev->qdisc_tx_busylock = &ppp_tx_busylock;
+
+	ppp = netdev_priv(dev);
+	/* Let the netdevice take a reference on the ppp file. This ensures
+	 * that ppp_destroy_interface() won't run before the device gets
+	 * unregistered.
+	 */
+	atomic_inc(&ppp->file.refcnt);
+
 	return 0;
 }
 
@@ -1130,6 +1144,15 @@ static void ppp_dev_uninit(struct net_de
 	wake_up_interruptible(&ppp->file.rwait);
 }
 
+static void ppp_dev_priv_destructor(struct net_device *dev)
+{
+	struct ppp *ppp;
+
+	ppp = netdev_priv(dev);
+	if (atomic_dec_and_test(&ppp->file.refcnt))
+		ppp_destroy_interface(ppp);
+}
+
 static const struct net_device_ops ppp_netdev_ops = {
 	.ndo_init	 = ppp_dev_init,
 	.ndo_uninit      = ppp_dev_uninit,
@@ -1147,6 +1170,7 @@ static void ppp_setup(struct net_device
 	dev->tx_queue_len = 3;
 	dev->type = ARPHRD_PPP;
 	dev->flags = IFF_POINTOPOINT | IFF_NOARP | IFF_MULTICAST;
+	dev->destructor = ppp_dev_priv_destructor;
 	netif_keep_dst(dev);
 }
 
@@ -2290,7 +2314,7 @@ int ppp_register_net_channel(struct net
 
 	pch->ppp = NULL;
 	pch->chan = chan;
-	pch->chan_net = net;
+	pch->chan_net = get_net(net);
 	chan->ppp = pch;
 	init_ppp_file(&pch->file, CHANNEL);
 	pch->file.hdrlen = chan->hdrlen;
@@ -2803,6 +2827,7 @@ static struct ppp *ppp_create_interface(
 
 out2:
 	mutex_unlock(&pn->all_ppp_mutex);
+	rtnl_unlock();
 	free_netdev(dev);
 out1:
 	*retp = ret;
@@ -2978,6 +3003,9 @@ ppp_disconnect_channel(struct channel *p
  */
 static void ppp_destroy_channel(struct channel *pch)
 {
+	put_net(pch->chan_net);
+	pch->chan_net = NULL;
+
 	atomic_dec(&channel_count);
 
 	if (!pch->file.dead) {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ppp/pppoe.c linux-libre-4.4.107-gnu/drivers/net/ppp/pppoe.c
--- linux-libre-4.4-gnu/drivers/net/ppp/pppoe.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ppp/pppoe.c	2017-12-20 04:05:01.000000000 -0500
@@ -395,6 +395,8 @@ static int pppoe_rcv_core(struct sock *s
 
 		if (!__pppoe_xmit(sk_pppox(relay_po), skb))
 			goto abort_put;
+
+		sock_put(sk_pppox(relay_po));
 	} else {
 		if (sock_queue_rcv_skb(sk, skb))
 			goto abort_kfree;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/ppp/pptp.c linux-libre-4.4.107-gnu/drivers/net/ppp/pptp.c
--- linux-libre-4.4-gnu/drivers/net/ppp/pptp.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/ppp/pptp.c	2017-12-20 04:05:01.000000000 -0500
@@ -129,24 +129,27 @@ static int lookup_chan_dst(u16 call_id,
 	return i < MAX_CALLID;
 }
 
-static int add_chan(struct pppox_sock *sock)
+static int add_chan(struct pppox_sock *sock,
+		    struct pptp_addr *sa)
 {
 	static int call_id;
 
 	spin_lock(&chan_lock);
-	if (!sock->proto.pptp.src_addr.call_id)	{
+	if (!sa->call_id)	{
 		call_id = find_next_zero_bit(callid_bitmap, MAX_CALLID, call_id + 1);
 		if (call_id == MAX_CALLID) {
 			call_id = find_next_zero_bit(callid_bitmap, MAX_CALLID, 1);
 			if (call_id == MAX_CALLID)
 				goto out_err;
 		}
-		sock->proto.pptp.src_addr.call_id = call_id;
-	} else if (test_bit(sock->proto.pptp.src_addr.call_id, callid_bitmap))
+		sa->call_id = call_id;
+	} else if (test_bit(sa->call_id, callid_bitmap)) {
 		goto out_err;
+	}
 
-	set_bit(sock->proto.pptp.src_addr.call_id, callid_bitmap);
-	rcu_assign_pointer(callid_sock[sock->proto.pptp.src_addr.call_id], sock);
+	sock->proto.pptp.src_addr = *sa;
+	set_bit(sa->call_id, callid_bitmap);
+	rcu_assign_pointer(callid_sock[sa->call_id], sock);
 	spin_unlock(&chan_lock);
 
 	return 0;
@@ -416,7 +419,6 @@ static int pptp_bind(struct socket *sock
 	struct sock *sk = sock->sk;
 	struct sockaddr_pppox *sp = (struct sockaddr_pppox *) uservaddr;
 	struct pppox_sock *po = pppox_sk(sk);
-	struct pptp_opt *opt = &po->proto.pptp;
 	int error = 0;
 
 	if (sockaddr_len < sizeof(struct sockaddr_pppox))
@@ -424,10 +426,22 @@ static int pptp_bind(struct socket *sock
 
 	lock_sock(sk);
 
-	opt->src_addr = sp->sa_addr.pptp;
-	if (add_chan(po))
+	if (sk->sk_state & PPPOX_DEAD) {
+		error = -EALREADY;
+		goto out;
+	}
+
+	if (sk->sk_state & PPPOX_BOUND) {
 		error = -EBUSY;
+		goto out;
+	}
 
+	if (add_chan(po, &sp->sa_addr.pptp))
+		error = -EBUSY;
+	else
+		sk->sk_state |= PPPOX_BOUND;
+
+out:
 	release_sock(sk);
 	return error;
 }
@@ -498,7 +512,7 @@ static int pptp_connect(struct socket *s
 	}
 
 	opt->dst_addr = sp->sa_addr.pptp;
-	sk->sk_state = PPPOX_CONNECTED;
+	sk->sk_state |= PPPOX_CONNECTED;
 
  end:
 	release_sock(sk);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/rionet.c linux-libre-4.4.107-gnu/drivers/net/rionet.c
--- linux-libre-4.4-gnu/drivers/net/rionet.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/rionet.c	2017-12-20 04:05:01.000000000 -0500
@@ -280,7 +280,7 @@ static void rionet_outb_msg_event(struct
 	struct net_device *ndev = dev_id;
 	struct rionet_private *rnet = netdev_priv(ndev);
 
-	spin_lock(&rnet->lock);
+	spin_lock(&rnet->tx_lock);
 
 	if (netif_msg_intr(rnet))
 		printk(KERN_INFO
@@ -299,7 +299,7 @@ static void rionet_outb_msg_event(struct
 	if (rnet->tx_cnt < RIONET_TX_RING_SIZE)
 		netif_wake_queue(ndev);
 
-	spin_unlock(&rnet->lock);
+	spin_unlock(&rnet->tx_lock);
 }
 
 static int rionet_open(struct net_device *ndev)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/team/team.c linux-libre-4.4.107-gnu/drivers/net/team/team.c
--- linux-libre-4.4-gnu/drivers/net/team/team.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/team/team.c	2017-12-20 04:05:01.000000000 -0500
@@ -969,7 +969,7 @@ static void team_port_disable(struct tea
 			    NETIF_F_FRAGLIST | NETIF_F_ALL_TSO | \
 			    NETIF_F_HIGHDMA | NETIF_F_LRO)
 
-static void __team_compute_features(struct team *team)
+static void ___team_compute_features(struct team *team)
 {
 	struct team_port *port;
 	u32 vlan_features = TEAM_VLAN_FEATURES & NETIF_F_ALL_FOR_ALL;
@@ -993,15 +993,20 @@ static void __team_compute_features(stru
 	team->dev->priv_flags &= ~IFF_XMIT_DST_RELEASE;
 	if (dst_release_flag == (IFF_XMIT_DST_RELEASE | IFF_XMIT_DST_RELEASE_PERM))
 		team->dev->priv_flags |= IFF_XMIT_DST_RELEASE;
+}
 
+static void __team_compute_features(struct team *team)
+{
+	___team_compute_features(team);
 	netdev_change_features(team->dev);
 }
 
 static void team_compute_features(struct team *team)
 {
 	mutex_lock(&team->lock);
-	__team_compute_features(team);
+	___team_compute_features(team);
 	mutex_unlock(&team->lock);
+	netdev_change_features(team->dev);
 }
 
 static int team_port_enter(struct team *team, struct team_port *port)
@@ -1845,10 +1850,10 @@ static int team_vlan_rx_kill_vid(struct
 	struct team *team = netdev_priv(dev);
 	struct team_port *port;
 
-	rcu_read_lock();
-	list_for_each_entry_rcu(port, &team->port_list, list)
+	mutex_lock(&team->lock);
+	list_for_each_entry(port, &team->port_list, list)
 		vlan_vid_del(port->dev, proto, vid);
-	rcu_read_unlock();
+	mutex_unlock(&team->lock);
 
 	return 0;
 }
@@ -2338,8 +2343,10 @@ start_again:
 
 	hdr = genlmsg_put(skb, portid, seq, &team_nl_family, flags | NLM_F_MULTI,
 			  TEAM_CMD_OPTIONS_GET);
-	if (!hdr)
+	if (!hdr) {
+		nlmsg_free(skb);
 		return -EMSGSIZE;
+	}
 
 	if (nla_put_u32(skb, TEAM_ATTR_TEAM_IFINDEX, team->dev->ifindex))
 		goto nla_put_failure;
@@ -2606,8 +2613,10 @@ start_again:
 
 	hdr = genlmsg_put(skb, portid, seq, &team_nl_family, flags | NLM_F_MULTI,
 			  TEAM_CMD_PORT_LIST_GET);
-	if (!hdr)
+	if (!hdr) {
+		nlmsg_free(skb);
 		return -EMSGSIZE;
+	}
 
 	if (nla_put_u32(skb, TEAM_ATTR_TEAM_IFINDEX, team->dev->ifindex))
 		goto nla_put_failure;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/tun.c linux-libre-4.4.107-gnu/drivers/net/tun.c
--- linux-libre-4.4-gnu/drivers/net/tun.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/tun.c	2017-12-20 04:05:01.000000000 -0500
@@ -567,11 +567,13 @@ static void tun_detach_all(struct net_de
 	for (i = 0; i < n; i++) {
 		tfile = rtnl_dereference(tun->tfiles[i]);
 		BUG_ON(!tfile);
+		tfile->socket.sk->sk_shutdown = RCV_SHUTDOWN;
 		tfile->socket.sk->sk_data_ready(tfile->socket.sk);
 		RCU_INIT_POINTER(tfile->tun, NULL);
 		--tun->numqueues;
 	}
 	list_for_each_entry(tfile, &tun->disabled, next) {
+		tfile->socket.sk->sk_shutdown = RCV_SHUTDOWN;
 		tfile->socket.sk->sk_data_ready(tfile->socket.sk);
 		RCU_INIT_POINTER(tfile->tun, NULL);
 	}
@@ -621,11 +623,13 @@ static int tun_attach(struct tun_struct
 
 	/* Re-attach the filter to persist device */
 	if (!skip_filter && (tun->filter_attached == true)) {
-		err = sk_attach_filter(&tun->fprog, tfile->socket.sk);
+		err = __sk_attach_filter(&tun->fprog, tfile->socket.sk,
+					 lockdep_rtnl_is_held());
 		if (!err)
 			goto out;
 	}
 	tfile->queue_index = tun->numqueues;
+	tfile->socket.sk->sk_shutdown &= ~RCV_SHUTDOWN;
 	rcu_assign_pointer(tfile->tun, tun);
 	rcu_assign_pointer(tun->tfiles[tun->numqueues], tfile);
 	tun->numqueues++;
@@ -1000,7 +1004,6 @@ static void tun_net_init(struct net_devi
 		/* Zero header length */
 		dev->type = ARPHRD_NONE;
 		dev->flags = IFF_POINTOPOINT | IFF_NOARP | IFF_MULTICAST;
-		dev->tx_queue_len = TUN_READQ_SIZE;  /* We prefer our own queue length */
 		break;
 
 	case IFF_TAP:
@@ -1012,7 +1015,6 @@ static void tun_net_init(struct net_devi
 
 		eth_hw_addr_random(dev);
 
-		dev->tx_queue_len = TUN_READQ_SIZE;  /* We prefer our own queue length */
 		break;
 	}
 }
@@ -1106,9 +1108,11 @@ static ssize_t tun_get_user(struct tun_s
 	}
 
 	if (tun->flags & IFF_VNET_HDR) {
-		if (len < tun->vnet_hdr_sz)
+		int vnet_hdr_sz = READ_ONCE(tun->vnet_hdr_sz);
+
+		if (len < vnet_hdr_sz)
 			return -EINVAL;
-		len -= tun->vnet_hdr_sz;
+		len -= vnet_hdr_sz;
 
 		n = copy_from_iter(&gso, sizeof(gso), from);
 		if (n != sizeof(gso))
@@ -1120,7 +1124,7 @@ static ssize_t tun_get_user(struct tun_s
 
 		if (tun16_to_cpu(tun, gso.hdr_len) > len)
 			return -EINVAL;
-		iov_iter_advance(from, tun->vnet_hdr_sz - sizeof(gso));
+		iov_iter_advance(from, vnet_hdr_sz - sizeof(gso));
 	}
 
 	if ((tun->flags & TUN_TYPE_MASK) == IFF_TAP) {
@@ -1191,11 +1195,13 @@ static ssize_t tun_get_user(struct tun_s
 	switch (tun->flags & TUN_TYPE_MASK) {
 	case IFF_TUN:
 		if (tun->flags & IFF_NO_PI) {
-			switch (skb->data[0] & 0xf0) {
-			case 0x40:
+			u8 ip_version = skb->len ? (skb->data[0] >> 4) : 0;
+
+			switch (ip_version) {
+			case 4:
 				pi.proto = htons(ETH_P_IP);
 				break;
-			case 0x60:
+			case 6:
 				pi.proto = htons(ETH_P_IPV6);
 				break;
 			default:
@@ -1299,7 +1305,7 @@ static ssize_t tun_put_user(struct tun_s
 		vlan_hlen = VLAN_HLEN;
 
 	if (tun->flags & IFF_VNET_HDR)
-		vnet_hdr_sz = tun->vnet_hdr_sz;
+		vnet_hdr_sz = READ_ONCE(tun->vnet_hdr_sz);
 
 	total = skb->len + vlan_hlen + vnet_hdr_sz;
 
@@ -1409,9 +1415,6 @@ static ssize_t tun_do_read(struct tun_st
 	if (!iov_iter_count(to))
 		return 0;
 
-	if (tun->dev->reg_state != NETREG_REGISTERED)
-		return -EIO;
-
 	/* Read frames from queue */
 	skb = __skb_recv_datagram(tfile->socket.sk, noblock ? MSG_DONTWAIT : 0,
 				  &peeked, &off, &err);
@@ -1463,6 +1466,8 @@ static void tun_setup(struct net_device
 
 	dev->ethtool_ops = &tun_ethtool_ops;
 	dev->destructor = tun_free_netdev;
+	/* We prefer our own queue length */
+	dev->tx_queue_len = TUN_READQ_SIZE;
 }
 
 /* Trivial set of netlink ops to allow deleting tun or tap
@@ -1679,6 +1684,9 @@ static int tun_set_iff(struct net *net,
 
 		if (!dev)
 			return -ENOMEM;
+		err = dev_get_valid_name(net, dev, name);
+		if (err < 0)
+			goto err_free_dev;
 
 		dev_net_set(dev, net);
 		dev->rtnl_link_ops = &tun_link_ops;
@@ -1804,7 +1812,7 @@ static void tun_detach_filter(struct tun
 
 	for (i = 0; i < n; i++) {
 		tfile = rtnl_dereference(tun->tfiles[i]);
-		sk_detach_filter(tfile->socket.sk);
+		__sk_detach_filter(tfile->socket.sk, lockdep_rtnl_is_held());
 	}
 
 	tun->filter_attached = false;
@@ -1817,7 +1825,8 @@ static int tun_attach_filter(struct tun_
 
 	for (i = 0; i < tun->numqueues; i++) {
 		tfile = rtnl_dereference(tun->tfiles[i]);
-		ret = sk_attach_filter(&tun->fprog, tfile->socket.sk);
+		ret = __sk_attach_filter(&tun->fprog, tfile->socket.sk,
+					 lockdep_rtnl_is_held());
 		if (ret) {
 			tun_detach_filter(tun, i);
 			return ret;
@@ -2059,6 +2068,10 @@ static long __tun_chr_ioctl(struct file
 			ret = -EFAULT;
 			break;
 		}
+		if (sndbuf <= 0) {
+			ret = -EINVAL;
+			break;
+		}
 
 		tun->sndbuf = sndbuf;
 		tun_set_sndbuf(tun);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/usb/asix_common.c linux-libre-4.4.107-gnu/drivers/net/usb/asix_common.c
--- linux-libre-4.4-gnu/drivers/net/usb/asix_common.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/usb/asix_common.c	2017-12-20 04:05:01.000000000 -0500
@@ -66,7 +66,7 @@ int asix_rx_fixup_internal(struct usbnet
 	 * buffer.
 	 */
 	if (rx->remaining && (rx->remaining + sizeof(u32) <= skb->len)) {
-		offset = ((rx->remaining + 1) & 0xfffe) + sizeof(u32);
+		offset = ((rx->remaining + 1) & 0xfffe);
 		rx->header = get_unaligned_le32(skb->data + offset);
 		offset = 0;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/usb/catc.c linux-libre-4.4.107-gnu/drivers/net/usb/catc.c
--- linux-libre-4.4-gnu/drivers/net/usb/catc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/usb/catc.c	2017-12-20 04:05:01.000000000 -0500
@@ -777,7 +777,7 @@ static int catc_probe(struct usb_interfa
 	struct net_device *netdev;
 	struct catc *catc;
 	u8 broadcast[ETH_ALEN];
-	int i, pktsz;
+	int pktsz, ret;
 
 	if (usb_set_interface(usbdev,
 			intf->altsetting->desc.bInterfaceNumber, 1)) {
@@ -812,12 +812,8 @@ static int catc_probe(struct usb_interfa
 	if ((!catc->ctrl_urb) || (!catc->tx_urb) || 
 	    (!catc->rx_urb) || (!catc->irq_urb)) {
 		dev_err(&intf->dev, "No free urbs available.\n");
-		usb_free_urb(catc->ctrl_urb);
-		usb_free_urb(catc->tx_urb);
-		usb_free_urb(catc->rx_urb);
-		usb_free_urb(catc->irq_urb);
-		free_netdev(netdev);
-		return -ENOMEM;
+		ret = -ENOMEM;
+		goto fail_free;
 	}
 
 	/* The F5U011 has the same vendor/product as the netmate but a device version of 0x130 */
@@ -845,15 +841,24 @@ static int catc_probe(struct usb_interfa
                 catc->irq_buf, 2, catc_irq_done, catc, 1);
 
 	if (!catc->is_f5u011) {
+		u32 *buf;
+		int i;
+
 		dev_dbg(dev, "Checking memory size\n");
 
-		i = 0x12345678;
-		catc_write_mem(catc, 0x7a80, &i, 4);
-		i = 0x87654321;	
-		catc_write_mem(catc, 0xfa80, &i, 4);
-		catc_read_mem(catc, 0x7a80, &i, 4);
+		buf = kmalloc(4, GFP_KERNEL);
+		if (!buf) {
+			ret = -ENOMEM;
+			goto fail_free;
+		}
+
+		*buf = 0x12345678;
+		catc_write_mem(catc, 0x7a80, buf, 4);
+		*buf = 0x87654321;
+		catc_write_mem(catc, 0xfa80, buf, 4);
+		catc_read_mem(catc, 0x7a80, buf, 4);
 	  
-		switch (i) {
+		switch (*buf) {
 		case 0x12345678:
 			catc_set_reg(catc, TxBufCount, 8);
 			catc_set_reg(catc, RxBufCount, 32);
@@ -868,6 +873,8 @@ static int catc_probe(struct usb_interfa
 			dev_dbg(dev, "32k Memory\n");
 			break;
 		}
+
+		kfree(buf);
 	  
 		dev_dbg(dev, "Getting MAC from SEEROM.\n");
 	  
@@ -914,16 +921,21 @@ static int catc_probe(struct usb_interfa
 	usb_set_intfdata(intf, catc);
 
 	SET_NETDEV_DEV(netdev, &intf->dev);
-	if (register_netdev(netdev) != 0) {
-		usb_set_intfdata(intf, NULL);
-		usb_free_urb(catc->ctrl_urb);
-		usb_free_urb(catc->tx_urb);
-		usb_free_urb(catc->rx_urb);
-		usb_free_urb(catc->irq_urb);
-		free_netdev(netdev);
-		return -EIO;
-	}
+	ret = register_netdev(netdev);
+	if (ret)
+		goto fail_clear_intfdata;
+
 	return 0;
+
+fail_clear_intfdata:
+	usb_set_intfdata(intf, NULL);
+fail_free:
+	usb_free_urb(catc->ctrl_urb);
+	usb_free_urb(catc->tx_urb);
+	usb_free_urb(catc->rx_urb);
+	usb_free_urb(catc->irq_urb);
+	free_netdev(netdev);
+	return ret;
 }
 
 static void catc_disconnect(struct usb_interface *intf)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/usb/cdc_ether.c linux-libre-4.4.107-gnu/drivers/net/usb/cdc_ether.c
--- linux-libre-4.4-gnu/drivers/net/usb/cdc_ether.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/usb/cdc_ether.c	2017-12-20 04:05:01.000000000 -0500
@@ -160,6 +160,12 @@ int usbnet_generic_cdc_bind(struct usbne
 	info->u = header.usb_cdc_union_desc;
 	info->header = header.usb_cdc_header_desc;
 	info->ether = header.usb_cdc_ether_desc;
+	if (!info->u) {
+		if (rndis)
+			goto skip;
+		else /* in that case a quirk is mandatory */
+			goto bad_desc;
+	}
 	/* we need a master/control interface (what we're
 	 * probed with) and a slave/data interface; union
 	 * descriptors sort this all out.
@@ -215,7 +221,7 @@ skip:
 			goto bad_desc;
 	}
 
-	if (header.usb_cdc_ether_desc) {
+	if (header.usb_cdc_ether_desc && info->ether->wMaxSegmentSize) {
 		dev->hard_mtu = le16_to_cpu(info->ether->wMaxSegmentSize);
 		/* because of Zaurus, we may be ignoring the host
 		 * side link address we were given.
@@ -256,7 +262,7 @@ skip:
 			goto bad_desc;
 		}
 
-	} else if (!info->header || !info->u || (!rndis && !info->ether)) {
+	} else if (!info->header || (!rndis && !info->ether)) {
 		dev_dbg(&intf->dev, "missing cdc %s%s%sdescriptor\n",
 			info->header ? "" : "header ",
 			info->u ? "" : "union ",
@@ -456,6 +462,7 @@ static const struct driver_info wwan_inf
 #define SAMSUNG_VENDOR_ID	0x04e8
 #define LENOVO_VENDOR_ID	0x17ef
 #define NVIDIA_VENDOR_ID	0x0955
+#define HP_VENDOR_ID		0x03f0
 
 static const struct usb_device_id	products[] = {
 /* BLACKLIST !!
@@ -602,6 +609,13 @@ static const struct usb_device_id	produc
 	.driver_info = 0,
 },
 
+/* HP lt2523 (Novatel E371) - handled by qmi_wwan */
+{
+	USB_DEVICE_AND_INTERFACE_INFO(HP_VENDOR_ID, 0x421d, USB_CLASS_COMM,
+				      USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
+	.driver_info = 0,
+},
+
 /* AnyDATA ADU960S - handled by qmi_wwan */
 {
 	USB_DEVICE_AND_INTERFACE_INFO(0x16d5, 0x650a, USB_CLASS_COMM,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/usb/cdc_mbim.c linux-libre-4.4.107-gnu/drivers/net/usb/cdc_mbim.c
--- linux-libre-4.4-gnu/drivers/net/usb/cdc_mbim.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/usb/cdc_mbim.c	2017-12-20 04:05:01.000000000 -0500
@@ -617,8 +617,13 @@ static const struct usb_device_id mbim_d
 	{ USB_VENDOR_AND_INTERFACE_INFO(0x0bdb, USB_CLASS_COMM, USB_CDC_SUBCLASS_MBIM, USB_CDC_PROTO_NONE),
 	  .driver_info = (unsigned long)&cdc_mbim_info,
 	},
-	/* Huawei E3372 fails unless NDP comes after the IP packets */
-	{ USB_DEVICE_AND_INTERFACE_INFO(0x12d1, 0x157d, USB_CLASS_COMM, USB_CDC_SUBCLASS_MBIM, USB_CDC_PROTO_NONE),
+
+	/* Some Huawei devices, ME906s-158 (12d1:15c1) and E3372
+	 * (12d1:157d), are known to fail unless the NDP is placed
+	 * after the IP packets.  Applying the quirk to all Huawei
+	 * devices is broader than necessary, but harmless.
+	 */
+	{ USB_VENDOR_AND_INTERFACE_INFO(0x12d1, USB_CLASS_COMM, USB_CDC_SUBCLASS_MBIM, USB_CDC_PROTO_NONE),
 	  .driver_info = (unsigned long)&cdc_mbim_info_ndp_to_end,
 	},
 	/* default entry */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/usb/cdc_ncm.c linux-libre-4.4.107-gnu/drivers/net/usb/cdc_ncm.c
--- linux-libre-4.4-gnu/drivers/net/usb/cdc_ncm.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/usb/cdc_ncm.c	2017-12-20 04:05:01.000000000 -0500
@@ -724,8 +724,10 @@ int cdc_ncm_bind_common(struct usbnet *d
 	u8 *buf;
 	int len;
 	int temp;
+	int err;
 	u8 iface_no;
 	struct usb_cdc_parsed_header hdr;
+	u16 curr_ntb_format;
 
 	ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
 	if (!ctx)
@@ -794,7 +796,11 @@ int cdc_ncm_bind_common(struct usbnet *d
 
 	iface_no = ctx->data->cur_altsetting->desc.bInterfaceNumber;
 
-	/* reset data interface */
+	/* Reset data interface. Some devices will not reset properly
+	 * unless they are configured first.  Toggle the altsetting to
+	 * force a reset
+	 */
+	usb_set_interface(dev->udev, iface_no, data_altsetting);
 	temp = usb_set_interface(dev->udev, iface_no, 0);
 	if (temp) {
 		dev_dbg(&intf->dev, "set interface failed\n");
@@ -805,6 +811,13 @@ int cdc_ncm_bind_common(struct usbnet *d
 	if (cdc_ncm_init(dev))
 		goto error2;
 
+	/* Some firmwares need a pause here or they will silently fail
+	 * to set up the interface properly.  This value was decided
+	 * empirically on a Sierra Wireless MC7455 running 02.08.02.00
+	 * firmware.
+	 */
+	usleep_range(10000, 20000);
+
 	/* configure data interface */
 	temp = usb_set_interface(dev->udev, iface_no, data_altsetting);
 	if (temp) {
@@ -812,6 +825,32 @@ int cdc_ncm_bind_common(struct usbnet *d
 		goto error2;
 	}
 
+	/*
+	 * Some Huawei devices have been observed to come out of reset in NDP32 mode.
+	 * Let's check if this is the case, and set the device to NDP16 mode again if
+	 * needed.
+	*/
+	if (ctx->drvflags & CDC_NCM_FLAG_RESET_NTB16) {
+		err = usbnet_read_cmd(dev, USB_CDC_GET_NTB_FORMAT,
+				      USB_TYPE_CLASS | USB_DIR_IN | USB_RECIP_INTERFACE,
+				      0, iface_no, &curr_ntb_format, 2);
+		if (err < 0) {
+			goto error2;
+		}
+
+		if (curr_ntb_format == USB_CDC_NCM_NTB32_FORMAT) {
+			dev_info(&intf->dev, "resetting NTB format to 16-bit");
+			err = usbnet_write_cmd(dev, USB_CDC_SET_NTB_FORMAT,
+					       USB_TYPE_CLASS | USB_DIR_OUT
+					       | USB_RECIP_INTERFACE,
+					       USB_CDC_NCM_NTB16_FORMAT,
+					       iface_no, NULL, 0);
+
+			if (err < 0)
+				goto error2;
+		}
+	}
+
 	cdc_ncm_find_endpoints(dev, ctx->data);
 	cdc_ncm_find_endpoints(dev, ctx->control);
 	if (!dev->in || !dev->out || !dev->status) {
@@ -941,8 +980,6 @@ EXPORT_SYMBOL_GPL(cdc_ncm_select_altsett
 
 static int cdc_ncm_bind(struct usbnet *dev, struct usb_interface *intf)
 {
-	int ret;
-
 	/* MBIM backwards compatible function? */
 	if (cdc_ncm_select_altsetting(intf) != CDC_NCM_COMM_ALTSETTING_NCM)
 		return -ENODEV;
@@ -951,16 +988,7 @@ static int cdc_ncm_bind(struct usbnet *d
 	 * Additionally, generic NCM devices are assumed to accept arbitrarily
 	 * placed NDP.
 	 */
-	ret = cdc_ncm_bind_common(dev, intf, CDC_NCM_DATA_ALTSETTING_NCM, 0);
-
-	/*
-	 * We should get an event when network connection is "connected" or
-	 * "disconnected". Set network connection in "disconnected" state
-	 * (carrier is OFF) during attach, so the IP network stack does not
-	 * start IPv6 negotiation and more.
-	 */
-	usbnet_link_change(dev, 0, 0);
-	return ret;
+	return cdc_ncm_bind_common(dev, intf, CDC_NCM_DATA_ALTSETTING_NCM, 0);
 }
 
 static void cdc_ncm_align_tail(struct sk_buff *skb, size_t modulus, size_t remainder, size_t max)
@@ -1543,7 +1571,8 @@ static void cdc_ncm_status(struct usbnet
 
 static const struct driver_info cdc_ncm_info = {
 	.description = "CDC NCM",
-	.flags = FLAG_POINTTOPOINT | FLAG_NO_SETINT | FLAG_MULTI_PACKET,
+	.flags = FLAG_POINTTOPOINT | FLAG_NO_SETINT | FLAG_MULTI_PACKET
+			| FLAG_LINK_INTR,
 	.bind = cdc_ncm_bind,
 	.unbind = cdc_ncm_unbind,
 	.manage_power = usbnet_manage_power,
@@ -1556,7 +1585,7 @@ static const struct driver_info cdc_ncm_
 static const struct driver_info wwan_info = {
 	.description = "Mobile Broadband Network Device",
 	.flags = FLAG_POINTTOPOINT | FLAG_NO_SETINT | FLAG_MULTI_PACKET
-			| FLAG_WWAN,
+			| FLAG_LINK_INTR | FLAG_WWAN,
 	.bind = cdc_ncm_bind,
 	.unbind = cdc_ncm_unbind,
 	.manage_power = usbnet_manage_power,
@@ -1569,7 +1598,7 @@ static const struct driver_info wwan_inf
 static const struct driver_info wwan_noarp_info = {
 	.description = "Mobile Broadband Network Device (NO ARP)",
 	.flags = FLAG_POINTTOPOINT | FLAG_NO_SETINT | FLAG_MULTI_PACKET
-			| FLAG_WWAN | FLAG_NOARP,
+			| FLAG_LINK_INTR | FLAG_WWAN | FLAG_NOARP,
 	.bind = cdc_ncm_bind,
 	.unbind = cdc_ncm_unbind,
 	.manage_power = usbnet_manage_power,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/usb/huawei_cdc_ncm.c linux-libre-4.4.107-gnu/drivers/net/usb/huawei_cdc_ncm.c
--- linux-libre-4.4-gnu/drivers/net/usb/huawei_cdc_ncm.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/usb/huawei_cdc_ncm.c	2017-12-20 04:05:01.000000000 -0500
@@ -80,6 +80,12 @@ static int huawei_cdc_ncm_bind(struct us
 	 * be at the end of the frame.
 	 */
 	drvflags |= CDC_NCM_FLAG_NDP_TO_END;
+
+	/* Additionally, it has been reported that some Huawei E3372H devices, with
+	 * firmware version 21.318.01.00.541, come out of reset in NTB32 format mode, hence
+	 * needing to be set to the NTB16 one again.
+	 */
+	drvflags |= CDC_NCM_FLAG_RESET_NTB16;
 	ret = cdc_ncm_bind_common(usbnet_dev, intf, 1, drvflags);
 	if (ret)
 		goto err;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/usb/kaweth.c linux-libre-4.4.107-gnu/drivers/net/usb/kaweth.c
--- linux-libre-4.4-gnu/drivers/net/usb/kaweth.c	2016-01-10 21:06:13.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/usb/kaweth.c	2017-12-20 11:28:41.000000000 -0500
@@ -1006,6 +1006,7 @@ static int kaweth_probe(
 	struct net_device *netdev;
 	const eth_addr_t bcast_addr = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
 	int result = 0;
+	int rv = -EIO;
 
 	dev_dbg(dev,
 		"Kawasaki Device Probe (Device number:%d): 0x%4.4x:0x%4.4x:0x%4.4x\n",
@@ -1026,6 +1027,7 @@ static int kaweth_probe(
 	kaweth = netdev_priv(netdev);
 	kaweth->dev = udev;
 	kaweth->net = netdev;
+	kaweth->intf = intf;
 
 	spin_lock_init(&kaweth->device_lock);
 	init_waitqueue_head(&kaweth->term_wait);
@@ -1045,6 +1047,10 @@ static int kaweth_probe(
 		/* Download the firmware */
 		dev_info(dev, "Downloading firmware...\n");
 		kaweth->firmware_buf = (__u8 *)__get_free_page(GFP_KERNEL);
+		if (!kaweth->firmware_buf) {
+			rv = -ENOMEM;
+			goto err_free_netdev;
+		}
 		if ((result = kaweth_download_firmware(kaweth,
 						      "/*(DEBLOBBED)*/",
 						      100,
@@ -1136,8 +1142,6 @@ err_fw:
 
 	dev_dbg(dev, "Initializing net device.\n");
 
-	kaweth->intf = intf;
-
 	kaweth->tx_urb = usb_alloc_urb(0, GFP_KERNEL);
 	if (!kaweth->tx_urb)
 		goto err_free_netdev;
@@ -1201,7 +1205,7 @@ err_only_tx:
 err_free_netdev:
 	free_netdev(netdev);
 
-	return -EIO;
+	return rv;
 }
 
 /****************************************************************
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/usb/Kconfig linux-libre-4.4.107-gnu/drivers/net/usb/Kconfig
--- linux-libre-4.4-gnu/drivers/net/usb/Kconfig	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/usb/Kconfig	2017-12-20 04:05:01.000000000 -0500
@@ -364,7 +364,7 @@ config USB_NET_NET1080
 	  optionally with LEDs that indicate traffic
 
 config USB_NET_PLUSB
-	tristate "Prolific PL-2301/2302/25A1 based cables"
+	tristate "Prolific PL-2301/2302/25A1/27A1 based cables"
 	# if the handshake/init/reset problems, from original 'plusb',
 	# are ever resolved ... then remove "experimental"
 	depends on USB_USBNET
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/usb/pegasus.c linux-libre-4.4.107-gnu/drivers/net/usb/pegasus.c
--- linux-libre-4.4-gnu/drivers/net/usb/pegasus.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/usb/pegasus.c	2017-12-20 04:05:01.000000000 -0500
@@ -126,40 +126,61 @@ static void async_ctrl_callback(struct u
 
 static int get_registers(pegasus_t *pegasus, __u16 indx, __u16 size, void *data)
 {
+	u8 *buf;
 	int ret;
 
+	buf = kmalloc(size, GFP_NOIO);
+	if (!buf)
+		return -ENOMEM;
+
 	ret = usb_control_msg(pegasus->usb, usb_rcvctrlpipe(pegasus->usb, 0),
 			      PEGASUS_REQ_GET_REGS, PEGASUS_REQT_READ, 0,
-			      indx, data, size, 1000);
+			      indx, buf, size, 1000);
 	if (ret < 0)
 		netif_dbg(pegasus, drv, pegasus->net,
 			  "%s returned %d\n", __func__, ret);
+	else if (ret <= size)
+		memcpy(data, buf, ret);
+	kfree(buf);
 	return ret;
 }
 
-static int set_registers(pegasus_t *pegasus, __u16 indx, __u16 size, void *data)
+static int set_registers(pegasus_t *pegasus, __u16 indx, __u16 size,
+			 const void *data)
 {
+	u8 *buf;
 	int ret;
 
+	buf = kmemdup(data, size, GFP_NOIO);
+	if (!buf)
+		return -ENOMEM;
+
 	ret = usb_control_msg(pegasus->usb, usb_sndctrlpipe(pegasus->usb, 0),
 			      PEGASUS_REQ_SET_REGS, PEGASUS_REQT_WRITE, 0,
-			      indx, data, size, 100);
+			      indx, buf, size, 100);
 	if (ret < 0)
 		netif_dbg(pegasus, drv, pegasus->net,
 			  "%s returned %d\n", __func__, ret);
+	kfree(buf);
 	return ret;
 }
 
 static int set_register(pegasus_t *pegasus, __u16 indx, __u8 data)
 {
+	u8 *buf;
 	int ret;
 
+	buf = kmemdup(&data, 1, GFP_NOIO);
+	if (!buf)
+		return -ENOMEM;
+
 	ret = usb_control_msg(pegasus->usb, usb_sndctrlpipe(pegasus->usb, 0),
 			      PEGASUS_REQ_SET_REG, PEGASUS_REQT_WRITE, data,
-			      indx, &data, 1, 1000);
+			      indx, buf, 1, 1000);
 	if (ret < 0)
 		netif_dbg(pegasus, drv, pegasus->net,
 			  "%s returned %d\n", __func__, ret);
+	kfree(buf);
 	return ret;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/usb/plusb.c linux-libre-4.4.107-gnu/drivers/net/usb/plusb.c
--- linux-libre-4.4-gnu/drivers/net/usb/plusb.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/usb/plusb.c	2017-12-20 04:05:01.000000000 -0500
@@ -102,7 +102,7 @@ static int pl_reset(struct usbnet *dev)
 }
 
 static const struct driver_info	prolific_info = {
-	.description =	"Prolific PL-2301/PL-2302/PL-25A1",
+	.description =	"Prolific PL-2301/PL-2302/PL-25A1/PL-27A1",
 	.flags =	FLAG_POINTTOPOINT | FLAG_NO_SETINT,
 		/* some PL-2302 versions seem to fail usb_set_interface() */
 	.reset =	pl_reset,
@@ -139,6 +139,17 @@ static const struct usb_device_id	produc
 					 * Host-to-Host Cable
 					 */
 	.driver_info =  (unsigned long) &prolific_info,
+
+},
+
+/* super speed cables */
+{
+	USB_DEVICE(0x067b, 0x27a1),     /* PL-27A1, no eeprom
+					 * also: goobay Active USB 3.0
+					 * Data Link,
+					 * Unitek Y-3501
+					 */
+	.driver_info =  (unsigned long) &prolific_info,
 },
 
 	{ },		// END
@@ -158,5 +169,5 @@ static struct usb_driver plusb_driver =
 module_usb_driver(plusb_driver);
 
 MODULE_AUTHOR("David Brownell");
-MODULE_DESCRIPTION("Prolific PL-2301/2302/25A1 USB Host to Host Link Driver");
+MODULE_DESCRIPTION("Prolific PL-2301/2302/25A1/27A1 USB Host to Host Link Driver");
 MODULE_LICENSE("GPL");
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/usb/qmi_wwan.c linux-libre-4.4.107-gnu/drivers/net/usb/qmi_wwan.c
--- linux-libre-4.4-gnu/drivers/net/usb/qmi_wwan.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/usb/qmi_wwan.c	2017-12-20 04:05:01.000000000 -0500
@@ -262,7 +262,7 @@ static int qmi_wwan_bind(struct usbnet *
 	}
 
 	/* errors aren't fatal - we can live with the dynamic address */
-	if (cdc_ether) {
+	if (cdc_ether && cdc_ether->wMaxSegmentSize) {
 		dev->hard_mtu = le16_to_cpu(cdc_ether->wMaxSegmentSize);
 		usbnet_get_ethernet_addr(dev, cdc_ether->iMACAddress);
 	}
@@ -485,6 +485,13 @@ static const struct usb_device_id produc
 					      USB_CDC_PROTO_NONE),
 		.driver_info        = (unsigned long)&qmi_wwan_info,
 	},
+	{	/* HP lt2523 (Novatel E371) */
+		USB_DEVICE_AND_INTERFACE_INFO(0x03f0, 0x421d,
+					      USB_CLASS_COMM,
+					      USB_CDC_SUBCLASS_ETHERNET,
+					      USB_CDC_PROTO_NONE),
+		.driver_info        = (unsigned long)&qmi_wwan_info,
+	},
 	{	/* HP lt4112 LTE/HSPA+ Gobi 4G Module (Huawei me906e) */
 		USB_DEVICE_AND_INTERFACE_INFO(0x03f0, 0x581d, USB_CLASS_VENDOR_SPEC, 1, 7),
 		.driver_info = (unsigned long)&qmi_wwan_info,
@@ -492,6 +499,7 @@ static const struct usb_device_id produc
 
 	/* 3. Combined interface devices matching on interface number */
 	{QMI_FIXED_INTF(0x0408, 0xea42, 4)},	/* Yota / Megafon M100-1 */
+	{QMI_FIXED_INTF(0x05c6, 0x6001, 3)},	/* 4G LTE usb-modem U901 */
 	{QMI_FIXED_INTF(0x05c6, 0x7000, 0)},
 	{QMI_FIXED_INTF(0x05c6, 0x7001, 1)},
 	{QMI_FIXED_INTF(0x05c6, 0x7002, 1)},
@@ -698,6 +706,8 @@ static const struct usb_device_id produc
 	{QMI_FIXED_INTF(0x19d2, 0x1426, 2)},	/* ZTE MF91 */
 	{QMI_FIXED_INTF(0x19d2, 0x1428, 2)},	/* Telewell TW-LTE 4G v2 */
 	{QMI_FIXED_INTF(0x19d2, 0x2002, 4)},	/* ZTE (Vodafone) K3765-Z */
+	{QMI_FIXED_INTF(0x2001, 0x7e19, 4)},	/* D-Link DWM-221 B1 */
+	{QMI_FIXED_INTF(0x2001, 0x7e35, 4)},	/* D-Link DWM-222 */
 	{QMI_FIXED_INTF(0x0f3d, 0x68a2, 8)},    /* Sierra Wireless MC7700 */
 	{QMI_FIXED_INTF(0x114f, 0x68a2, 8)},    /* Sierra Wireless MC7750 */
 	{QMI_FIXED_INTF(0x1199, 0x68a2, 8)},	/* Sierra Wireless MC7710 in QMI mode */
@@ -717,8 +727,12 @@ static const struct usb_device_id produc
 	{QMI_FIXED_INTF(0x1199, 0x9061, 8)},	/* Sierra Wireless Modem */
 	{QMI_FIXED_INTF(0x1199, 0x9070, 8)},	/* Sierra Wireless MC74xx/EM74xx */
 	{QMI_FIXED_INTF(0x1199, 0x9070, 10)},	/* Sierra Wireless MC74xx/EM74xx */
-	{QMI_FIXED_INTF(0x1199, 0x9071, 8)},	/* Sierra Wireless MC74xx/EM74xx */
-	{QMI_FIXED_INTF(0x1199, 0x9071, 10)},	/* Sierra Wireless MC74xx/EM74xx */
+	{QMI_FIXED_INTF(0x1199, 0x9071, 8)},	/* Sierra Wireless MC74xx */
+	{QMI_FIXED_INTF(0x1199, 0x9071, 10)},	/* Sierra Wireless MC74xx */
+	{QMI_FIXED_INTF(0x1199, 0x9079, 8)},	/* Sierra Wireless EM74xx */
+	{QMI_FIXED_INTF(0x1199, 0x9079, 10)},	/* Sierra Wireless EM74xx */
+	{QMI_FIXED_INTF(0x1199, 0x907b, 8)},	/* Sierra Wireless EM74xx */
+	{QMI_FIXED_INTF(0x1199, 0x907b, 10)},	/* Sierra Wireless EM74xx */
 	{QMI_FIXED_INTF(0x1bbb, 0x011e, 4)},	/* Telekom Speedstick LTE II (Alcatel One Touch L100V LTE) */
 	{QMI_FIXED_INTF(0x1bbb, 0x0203, 2)},	/* Alcatel L800MA */
 	{QMI_FIXED_INTF(0x2357, 0x0201, 4)},	/* TP-LINK HSUPA Modem MA180 */
@@ -743,6 +757,7 @@ static const struct usb_device_id produc
 	{QMI_FIXED_INTF(0x413c, 0x81b1, 8)},	/* Dell Wireless 5809e Gobi(TM) 4G LTE Mobile Broadband Card */
 	{QMI_FIXED_INTF(0x03f0, 0x4e1d, 8)},	/* HP lt4111 LTE/EV-DO/HSPA+ Gobi 4G Module */
 	{QMI_FIXED_INTF(0x22de, 0x9061, 3)},	/* WeTelecom WPD-600N */
+	{QMI_FIXED_INTF(0x1e0e, 0x9001, 5)},	/* SIMCom 7230E */
 
 	/* 4. Gobi 1000 devices */
 	{QMI_GOBI1K_DEVICE(0x05c6, 0x9212)},	/* Acer Gobi Modem Device */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/usb/r8152.c linux-libre-4.4.107-gnu/drivers/net/usb/r8152.c
--- linux-libre-4.4-gnu/drivers/net/usb/r8152.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/usb/r8152.c	2017-12-20 04:05:01.000000000 -0500
@@ -1645,7 +1645,7 @@ static u8 r8152_rx_csum(struct r8152 *tp
 	u8 checksum = CHECKSUM_NONE;
 	u32 opts2, opts3;
 
-	if (tp->version == RTL_VER_01)
+	if (!(tp->netdev->features & NETIF_F_RXCSUM))
 		goto return_result;
 
 	opts2 = le32_to_cpu(rx_desc->opts2);
@@ -1851,6 +1851,9 @@ static int r8152_poll(struct napi_struct
 		napi_complete(napi);
 		if (!list_empty(&tp->rx_done))
 			napi_schedule(napi);
+		else if (!skb_queue_empty(&tp->tx_queue) &&
+			 !list_empty(&tp->tx_free))
+			napi_schedule(napi);
 	}
 
 	return work_done;
@@ -2990,10 +2993,13 @@ static void set_carrier(struct r8152 *tp
 		if (!netif_carrier_ok(netdev)) {
 			tp->rtl_ops.enable(tp);
 			set_bit(RTL8152_SET_RX_MODE, &tp->flags);
+			netif_stop_queue(netdev);
 			napi_disable(&tp->napi);
 			netif_carrier_on(netdev);
 			rtl_start_rx(tp);
 			napi_enable(&tp->napi);
+			netif_wake_queue(netdev);
+			netif_info(tp, link, netdev, "carrier on\n");
 		}
 	} else {
 		if (netif_carrier_ok(netdev)) {
@@ -3001,6 +3007,7 @@ static void set_carrier(struct r8152 *tp
 			napi_disable(&tp->napi);
 			tp->rtl_ops.disable(tp);
 			napi_enable(&tp->napi);
+			netif_info(tp, link, netdev, "carrier off\n");
 		}
 	}
 }
@@ -3385,12 +3392,12 @@ static int rtl8152_pre_reset(struct usb_
 	if (!netif_running(netdev))
 		return 0;
 
+	netif_stop_queue(netdev);
 	napi_disable(&tp->napi);
 	clear_bit(WORK_ENABLE, &tp->flags);
 	usb_kill_urb(tp->intr_urb);
 	cancel_delayed_work_sync(&tp->schedule);
 	if (netif_carrier_ok(netdev)) {
-		netif_stop_queue(netdev);
 		mutex_lock(&tp->control);
 		tp->rtl_ops.disable(tp);
 		mutex_unlock(&tp->control);
@@ -3415,12 +3422,14 @@ static int rtl8152_post_reset(struct usb
 	if (netif_carrier_ok(netdev)) {
 		mutex_lock(&tp->control);
 		tp->rtl_ops.enable(tp);
+		rtl_start_rx(tp);
 		rtl8152_set_rx_mode(netdev);
 		mutex_unlock(&tp->control);
-		netif_wake_queue(netdev);
 	}
 
 	napi_enable(&tp->napi);
+	netif_wake_queue(netdev);
+	usb_submit_urb(tp->intr_urb, GFP_KERNEL);
 
 	return 0;
 }
@@ -3442,43 +3451,93 @@ static bool delay_autosuspend(struct r81
 	 */
 	if (!sw_linking && tp->rtl_ops.in_nway(tp))
 		return true;
+	else if (!skb_queue_empty(&tp->tx_queue))
+		return true;
 	else
 		return false;
 }
 
-static int rtl8152_suspend(struct usb_interface *intf, pm_message_t message)
+static int rtl8152_rumtime_suspend(struct r8152 *tp)
 {
-	struct r8152 *tp = usb_get_intfdata(intf);
 	struct net_device *netdev = tp->netdev;
 	int ret = 0;
 
-	mutex_lock(&tp->control);
+	if (netif_running(netdev) && test_bit(WORK_ENABLE, &tp->flags)) {
+		u32 rcr = 0;
 
-	if (PMSG_IS_AUTO(message)) {
-		if (netif_running(netdev) && delay_autosuspend(tp)) {
+		if (delay_autosuspend(tp)) {
 			ret = -EBUSY;
 			goto out1;
 		}
 
-		set_bit(SELECTIVE_SUSPEND, &tp->flags);
-	} else {
-		netif_device_detach(netdev);
+		if (netif_carrier_ok(netdev)) {
+			u32 ocp_data;
+
+			rcr = ocp_read_dword(tp, MCU_TYPE_PLA, PLA_RCR);
+			ocp_data = rcr & ~RCR_ACPT_ALL;
+			ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RCR, ocp_data);
+			rxdy_gated_en(tp, true);
+			ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA,
+						 PLA_OOB_CTRL);
+			if (!(ocp_data & RXFIFO_EMPTY)) {
+				rxdy_gated_en(tp, false);
+				ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RCR, rcr);
+				ret = -EBUSY;
+				goto out1;
+			}
+		}
+
+		clear_bit(WORK_ENABLE, &tp->flags);
+		usb_kill_urb(tp->intr_urb);
+
+		rtl_runtime_suspend_enable(tp, true);
+
+		if (netif_carrier_ok(netdev)) {
+			napi_disable(&tp->napi);
+			rtl_stop_rx(tp);
+			rxdy_gated_en(tp, false);
+			ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RCR, rcr);
+			napi_enable(&tp->napi);
+		}
 	}
 
+	set_bit(SELECTIVE_SUSPEND, &tp->flags);
+
+out1:
+	return ret;
+}
+
+static int rtl8152_system_suspend(struct r8152 *tp)
+{
+	struct net_device *netdev = tp->netdev;
+	int ret = 0;
+
+	netif_device_detach(netdev);
+
 	if (netif_running(netdev) && test_bit(WORK_ENABLE, &tp->flags)) {
 		clear_bit(WORK_ENABLE, &tp->flags);
 		usb_kill_urb(tp->intr_urb);
 		napi_disable(&tp->napi);
-		if (test_bit(SELECTIVE_SUSPEND, &tp->flags)) {
-			rtl_stop_rx(tp);
-			rtl_runtime_suspend_enable(tp, true);
-		} else {
-			cancel_delayed_work_sync(&tp->schedule);
-			tp->rtl_ops.down(tp);
-		}
+		cancel_delayed_work_sync(&tp->schedule);
+		tp->rtl_ops.down(tp);
 		napi_enable(&tp->napi);
 	}
-out1:
+
+	return ret;
+}
+
+static int rtl8152_suspend(struct usb_interface *intf, pm_message_t message)
+{
+	struct r8152 *tp = usb_get_intfdata(intf);
+	int ret;
+
+	mutex_lock(&tp->control);
+
+	if (PMSG_IS_AUTO(message))
+		ret = rtl8152_rumtime_suspend(tp);
+	else
+		ret = rtl8152_system_suspend(tp);
+
 	mutex_unlock(&tp->control);
 
 	return ret;
@@ -4173,6 +4232,11 @@ static int rtl8152_probe(struct usb_inte
 				NETIF_F_HIGHDMA | NETIF_F_FRAGLIST |
 				NETIF_F_IPV6_CSUM | NETIF_F_TSO6;
 
+	if (tp->version == RTL_VER_01) {
+		netdev->features &= ~NETIF_F_RXCSUM;
+		netdev->hw_features &= ~NETIF_F_RXCSUM;
+	}
+
 	netdev->ethtool_ops = &ops;
 	netif_set_gso_max_size(netdev, RTL_LIMITED_TSO_SIZE);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/usb/rtl8150.c linux-libre-4.4.107-gnu/drivers/net/usb/rtl8150.c
--- linux-libre-4.4-gnu/drivers/net/usb/rtl8150.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/usb/rtl8150.c	2017-12-20 04:05:01.000000000 -0500
@@ -155,16 +155,36 @@ static const char driver_name [] = "rtl8
 */
 static int get_registers(rtl8150_t * dev, u16 indx, u16 size, void *data)
 {
-	return usb_control_msg(dev->udev, usb_rcvctrlpipe(dev->udev, 0),
-			       RTL8150_REQ_GET_REGS, RTL8150_REQT_READ,
-			       indx, 0, data, size, 500);
+	void *buf;
+	int ret;
+
+	buf = kmalloc(size, GFP_NOIO);
+	if (!buf)
+		return -ENOMEM;
+
+	ret = usb_control_msg(dev->udev, usb_rcvctrlpipe(dev->udev, 0),
+			      RTL8150_REQ_GET_REGS, RTL8150_REQT_READ,
+			      indx, 0, buf, size, 500);
+	if (ret > 0 && ret <= size)
+		memcpy(data, buf, ret);
+	kfree(buf);
+	return ret;
 }
 
-static int set_registers(rtl8150_t * dev, u16 indx, u16 size, void *data)
+static int set_registers(rtl8150_t * dev, u16 indx, u16 size, const void *data)
 {
-	return usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0),
-			       RTL8150_REQ_SET_REGS, RTL8150_REQT_WRITE,
-			       indx, 0, data, size, 500);
+	void *buf;
+	int ret;
+
+	buf = kmemdup(data, size, GFP_NOIO);
+	if (!buf)
+		return -ENOMEM;
+
+	ret = usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0),
+			      RTL8150_REQ_SET_REGS, RTL8150_REQT_WRITE,
+			      indx, 0, buf, size, 500);
+	kfree(buf);
+	return ret;
 }
 
 static void async_set_reg_cb(struct urb *urb)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/usb/sierra_net.c linux-libre-4.4.107-gnu/drivers/net/usb/sierra_net.c
--- linux-libre-4.4-gnu/drivers/net/usb/sierra_net.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/usb/sierra_net.c	2017-12-20 04:05:01.000000000 -0500
@@ -73,8 +73,6 @@ static	atomic_t iface_counter = ATOMIC_I
 /* Private data structure */
 struct sierra_net_data {
 
-	u8 ethr_hdr_tmpl[ETH_HLEN]; /* ethernet header template for rx'd pkts */
-
 	u16 link_up;		/* air link up or down */
 	u8 tx_hdr_template[4];	/* part of HIP hdr for tx'd packets */
 
@@ -122,6 +120,7 @@ struct param {
 
 /* LSI Protocol types */
 #define SIERRA_NET_PROTOCOL_UMTS      0x01
+#define SIERRA_NET_PROTOCOL_UMTS_DS   0x04
 /* LSI Coverage */
 #define SIERRA_NET_COVERAGE_NONE      0x00
 #define SIERRA_NET_COVERAGE_NOPACKET  0x01
@@ -129,7 +128,8 @@ struct param {
 /* LSI Session */
 #define SIERRA_NET_SESSION_IDLE       0x00
 /* LSI Link types */
-#define SIERRA_NET_AS_LINK_TYPE_IPv4  0x00
+#define SIERRA_NET_AS_LINK_TYPE_IPV4  0x00
+#define SIERRA_NET_AS_LINK_TYPE_IPV6  0x02
 
 struct lsi_umts {
 	u8 protocol;
@@ -137,9 +137,14 @@ struct lsi_umts {
 	__be16 length;
 	/* eventually use a union for the rest - assume umts for now */
 	u8 coverage;
-	u8 unused2[41];
+	u8 network_len; /* network name len */
+	u8 network[40]; /* network name (UCS2, bigendian) */
 	u8 session_state;
 	u8 unused3[33];
+} __packed;
+
+struct lsi_umts_single {
+	struct lsi_umts lsi;
 	u8 link_type;
 	u8 pdp_addr_len; /* NW-supplied PDP address len */
 	u8 pdp_addr[16]; /* NW-supplied PDP address (bigendian)) */
@@ -158,10 +163,31 @@ struct lsi_umts {
 	u8 reserved[8];
 } __packed;
 
+struct lsi_umts_dual {
+	struct lsi_umts lsi;
+	u8 pdp_addr4_len; /* NW-supplied PDP IPv4 address len */
+	u8 pdp_addr4[4];  /* NW-supplied PDP IPv4 address (bigendian)) */
+	u8 pdp_addr6_len; /* NW-supplied PDP IPv6 address len */
+	u8 pdp_addr6[16]; /* NW-supplied PDP IPv6 address (bigendian)) */
+	u8 unused4[23];
+	u8 dns1_addr4_len; /* NW-supplied 1st DNS v4 address len (bigendian) */
+	u8 dns1_addr4[4];  /* NW-supplied 1st DNS v4 address */
+	u8 dns1_addr6_len; /* NW-supplied 1st DNS v6 address len */
+	u8 dns1_addr6[16]; /* NW-supplied 1st DNS v6 address (bigendian)*/
+	u8 dns2_addr4_len; /* NW-supplied 2nd DNS v4 address len (bigendian) */
+	u8 dns2_addr4[4];  /* NW-supplied 2nd DNS v4 address */
+	u8 dns2_addr6_len; /* NW-supplied 2nd DNS v6 address len */
+	u8 dns2_addr6[16]; /* NW-supplied 2nd DNS v6 address (bigendian)*/
+	u8 unused5[68];
+} __packed;
+
 #define SIERRA_NET_LSI_COMMON_LEN      4
-#define SIERRA_NET_LSI_UMTS_LEN        (sizeof(struct lsi_umts))
+#define SIERRA_NET_LSI_UMTS_LEN        (sizeof(struct lsi_umts_single))
 #define SIERRA_NET_LSI_UMTS_STATUS_LEN \
 	(SIERRA_NET_LSI_UMTS_LEN - SIERRA_NET_LSI_COMMON_LEN)
+#define SIERRA_NET_LSI_UMTS_DS_LEN     (sizeof(struct lsi_umts_dual))
+#define SIERRA_NET_LSI_UMTS_DS_STATUS_LEN \
+	(SIERRA_NET_LSI_UMTS_DS_LEN - SIERRA_NET_LSI_COMMON_LEN)
 
 /* Forward definitions */
 static void sierra_sync_timer(unsigned long syncdata);
@@ -191,10 +217,11 @@ static inline void sierra_net_set_privat
 	dev->data[0] = (unsigned long)priv;
 }
 
-/* is packet IPv4 */
+/* is packet IPv4/IPv6 */
 static inline int is_ip(struct sk_buff *skb)
 {
-	return skb->protocol == cpu_to_be16(ETH_P_IP);
+	return skb->protocol == cpu_to_be16(ETH_P_IP) ||
+	       skb->protocol == cpu_to_be16(ETH_P_IPV6);
 }
 
 /*
@@ -350,49 +377,54 @@ static inline int sierra_net_is_valid_ad
 static int sierra_net_parse_lsi(struct usbnet *dev, char *data, int datalen)
 {
 	struct lsi_umts *lsi = (struct lsi_umts *)data;
+	u32 expected_length;
 
-	if (datalen < sizeof(struct lsi_umts)) {
-		netdev_err(dev->net, "%s: Data length %d, exp %Zu\n",
-				__func__, datalen,
-				sizeof(struct lsi_umts));
+	if (datalen < sizeof(struct lsi_umts_single)) {
+		netdev_err(dev->net, "%s: Data length %d, exp >= %Zu\n",
+			   __func__, datalen, sizeof(struct lsi_umts_single));
 		return -1;
 	}
 
-	if (lsi->length != cpu_to_be16(SIERRA_NET_LSI_UMTS_STATUS_LEN)) {
-		netdev_err(dev->net, "%s: LSI_UMTS_STATUS_LEN %d, exp %u\n",
-				__func__, be16_to_cpu(lsi->length),
-				(u32)SIERRA_NET_LSI_UMTS_STATUS_LEN);
-		return -1;
+	/* Validate the session state */
+	if (lsi->session_state == SIERRA_NET_SESSION_IDLE) {
+		netdev_err(dev->net, "Session idle, 0x%02x\n",
+			   lsi->session_state);
+		return 0;
 	}
 
 	/* Validate the protocol  - only support UMTS for now */
-	if (lsi->protocol != SIERRA_NET_PROTOCOL_UMTS) {
+	if (lsi->protocol == SIERRA_NET_PROTOCOL_UMTS) {
+		struct lsi_umts_single *single = (struct lsi_umts_single *)lsi;
+
+		/* Validate the link type */
+		if (single->link_type != SIERRA_NET_AS_LINK_TYPE_IPV4 &&
+		    single->link_type != SIERRA_NET_AS_LINK_TYPE_IPV6) {
+			netdev_err(dev->net, "Link type unsupported: 0x%02x\n",
+				   single->link_type);
+			return -1;
+		}
+		expected_length = SIERRA_NET_LSI_UMTS_STATUS_LEN;
+	} else if (lsi->protocol == SIERRA_NET_PROTOCOL_UMTS_DS) {
+		expected_length = SIERRA_NET_LSI_UMTS_DS_STATUS_LEN;
+	} else {
 		netdev_err(dev->net, "Protocol unsupported, 0x%02x\n",
-			lsi->protocol);
+			   lsi->protocol);
 		return -1;
 	}
 
-	/* Validate the link type */
-	if (lsi->link_type != SIERRA_NET_AS_LINK_TYPE_IPv4) {
-		netdev_err(dev->net, "Link type unsupported: 0x%02x\n",
-			lsi->link_type);
+	if (be16_to_cpu(lsi->length) != expected_length) {
+		netdev_err(dev->net, "%s: LSI_UMTS_STATUS_LEN %d, exp %u\n",
+			   __func__, be16_to_cpu(lsi->length), expected_length);
 		return -1;
 	}
 
 	/* Validate the coverage */
-	if (lsi->coverage == SIERRA_NET_COVERAGE_NONE
-	   || lsi->coverage == SIERRA_NET_COVERAGE_NOPACKET) {
+	if (lsi->coverage == SIERRA_NET_COVERAGE_NONE ||
+	    lsi->coverage == SIERRA_NET_COVERAGE_NOPACKET) {
 		netdev_err(dev->net, "No coverage, 0x%02x\n", lsi->coverage);
 		return 0;
 	}
 
-	/* Validate the session state */
-	if (lsi->session_state == SIERRA_NET_SESSION_IDLE) {
-		netdev_err(dev->net, "Session idle, 0x%02x\n",
-			lsi->session_state);
-		return 0;
-	}
-
 	/* Set link_sense true */
 	return 1;
 }
@@ -662,7 +694,6 @@ static int sierra_net_bind(struct usbnet
 	u8	numendpoints;
 	u16	fwattr = 0;
 	int	status;
-	struct ethhdr *eth;
 	struct sierra_net_data *priv;
 	static const u8 sync_tmplate[sizeof(priv->sync_msg)] = {
 		0x00, 0x00, SIERRA_NET_HIP_MSYNC_ID, 0x00};
@@ -700,11 +731,6 @@ static int sierra_net_bind(struct usbnet
 	dev->net->dev_addr[ETH_ALEN-2] = atomic_inc_return(&iface_counter);
 	dev->net->dev_addr[ETH_ALEN-1] = ifacenum;
 
-	/* we will have to manufacture ethernet headers, prepare template */
-	eth = (struct ethhdr *)priv->ethr_hdr_tmpl;
-	memcpy(&eth->h_dest, dev->net->dev_addr, ETH_ALEN);
-	eth->h_proto = cpu_to_be16(ETH_P_IP);
-
 	/* prepare shutdown message template */
 	memcpy(priv->shdwn_msg, shdwn_tmplate, sizeof(priv->shdwn_msg));
 	/* set context index initially to 0 - prepares tx hdr template */
@@ -833,9 +859,14 @@ static int sierra_net_rx_fixup(struct us
 
 		skb_pull(skb, hh.hdrlen);
 
-		/* We are going to accept this packet, prepare it */
-		memcpy(skb->data, sierra_net_get_private(dev)->ethr_hdr_tmpl,
-			ETH_HLEN);
+		/* We are going to accept this packet, prepare it.
+		 * In case protocol is IPv6, keep it, otherwise force IPv4.
+		 */
+		skb_reset_mac_header(skb);
+		if (eth_hdr(skb)->h_proto != cpu_to_be16(ETH_P_IPV6))
+			eth_hdr(skb)->h_proto = cpu_to_be16(ETH_P_IP);
+		eth_zero_addr(eth_hdr(skb)->h_source);
+		memcpy(eth_hdr(skb)->h_dest, dev->net->dev_addr, ETH_ALEN);
 
 		/* Last packet in batch handled by usbnet */
 		if (hh.payload_len.word == skb->len)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/usb/usbnet.c linux-libre-4.4.107-gnu/drivers/net/usb/usbnet.c
--- linux-libre-4.4-gnu/drivers/net/usb/usbnet.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/usb/usbnet.c	2017-12-20 04:05:01.000000000 -0500
@@ -1766,6 +1766,13 @@ out3:
 	if (info->unbind)
 		info->unbind (dev, udev);
 out1:
+	/* subdrivers must undo all they did in bind() if they
+	 * fail it, but we may fail later and a deferred kevent
+	 * may trigger an error resubmitting itself and, worse,
+	 * schedule a timer. So we kill it all just in case.
+	 */
+	cancel_work_sync(&dev->kevent);
+	del_timer_sync(&dev->delay);
 	free_netdev(net);
 out:
 	return status;
@@ -1983,6 +1990,10 @@ int cdc_parse_cdc_header(struct usb_cdc_
 			elength = 1;
 			goto next_desc;
 		}
+		if ((buflen < elength) || (elength < 3)) {
+			dev_err(&intf->dev, "invalid descriptor buffer length\n");
+			break;
+		}
 		if (buffer[1] != USB_DT_CS_INTERFACE) {
 			dev_err(&intf->dev, "skipping garbage\n");
 			goto next_desc;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/virtio_net.c linux-libre-4.4.107-gnu/drivers/net/virtio_net.c
--- linux-libre-4.4-gnu/drivers/net/virtio_net.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/virtio_net.c	2017-12-20 04:05:01.000000000 -0500
@@ -47,8 +47,16 @@ module_param(gso, bool, 0444);
  */
 DECLARE_EWMA(pkt_len, 1, 64)
 
+/* With mergeable buffers we align buffer address and use the low bits to
+ * encode its true size. Buffer size is up to 1 page so we need to align to
+ * square root of page size to ensure we reserve enough bits to encode the true
+ * size.
+ */
+#define MERGEABLE_BUFFER_MIN_ALIGN_SHIFT ((PAGE_SHIFT + 1) / 2)
+
 /* Minimum alignment for mergeable packet buffers. */
-#define MERGEABLE_BUFFER_ALIGN max(L1_CACHE_BYTES, 256)
+#define MERGEABLE_BUFFER_ALIGN max(L1_CACHE_BYTES, \
+				   1 << MERGEABLE_BUFFER_MIN_ALIGN_SHIFT)
 
 #define VIRTNET_DRIVER_VERSION "1.0.0"
 
@@ -1415,6 +1423,7 @@ static const struct net_device_ops virtn
 #ifdef CONFIG_NET_RX_BUSY_POLL
 	.ndo_busy_poll		= virtnet_busy_poll,
 #endif
+	.ndo_features_check	= passthru_features_check,
 };
 
 static void virtnet_config_changed_work(struct work_struct *work)
@@ -1465,6 +1474,11 @@ static void virtnet_free_queues(struct v
 		netif_napi_del(&vi->rq[i].napi);
 	}
 
+	/* We called napi_hash_del() before netif_napi_del(),
+	 * we need to respect an RCU grace period before freeing vi->rq
+	 */
+	synchronize_net();
+
 	kfree(vi->rq);
 	kfree(vi->sq);
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/vrf.c linux-libre-4.4.107-gnu/drivers/net/vrf.c
--- linux-libre-4.4-gnu/drivers/net/vrf.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/vrf.c	2017-12-20 04:05:01.000000000 -0500
@@ -114,20 +114,23 @@ static struct dst_ops vrf_dst_ops = {
 #if IS_ENABLED(CONFIG_IPV6)
 static bool check_ipv6_frame(const struct sk_buff *skb)
 {
-	const struct ipv6hdr *ipv6h = (struct ipv6hdr *)skb->data;
-	size_t hlen = sizeof(*ipv6h);
+	const struct ipv6hdr *ipv6h;
+	struct ipv6hdr _ipv6h;
 	bool rc = true;
 
-	if (skb->len < hlen)
+	ipv6h = skb_header_pointer(skb, 0, sizeof(_ipv6h), &_ipv6h);
+	if (!ipv6h)
 		goto out;
 
 	if (ipv6h->nexthdr == NEXTHDR_ICMP) {
 		const struct icmp6hdr *icmph;
+		struct icmp6hdr _icmph;
 
-		if (skb->len < hlen + sizeof(*icmph))
+		icmph = skb_header_pointer(skb, sizeof(_ipv6h),
+					   sizeof(_icmph), &_icmph);
+		if (!icmph)
 			goto out;
 
-		icmph = (struct icmp6hdr *)(skb->data + sizeof(*ipv6h));
 		switch (icmph->icmp6_type) {
 		case NDISC_ROUTER_SOLICITATION:
 		case NDISC_ROUTER_ADVERTISEMENT:
@@ -298,7 +301,9 @@ static netdev_tx_t vrf_process_v4_outbou
 		.flowi4_tos = RT_TOS(ip4h->tos),
 		.flowi4_flags = FLOWI_FLAG_ANYSRC | FLOWI_FLAG_L3MDEV_SRC |
 				FLOWI_FLAG_SKIP_NH_OIF,
+		.flowi4_proto = ip4h->protocol,
 		.daddr = ip4h->daddr,
+		.saddr = ip4h->saddr,
 	};
 
 	if (vrf_send_v4_prep(skb, &fl4, vrf_dev))
@@ -340,6 +345,7 @@ static netdev_tx_t is_ip_tx_frame(struct
 
 static netdev_tx_t vrf_xmit(struct sk_buff *skb, struct net_device *dev)
 {
+	int len = skb->len;
 	netdev_tx_t ret = is_ip_tx_frame(skb, dev);
 
 	if (likely(ret == NET_XMIT_SUCCESS || ret == NET_XMIT_CN)) {
@@ -347,7 +353,7 @@ static netdev_tx_t vrf_xmit(struct sk_bu
 
 		u64_stats_update_begin(&dstats->syncp);
 		dstats->tx_pkts++;
-		dstats->tx_bytes += skb->len;
+		dstats->tx_bytes += len;
 		u64_stats_update_end(&dstats->syncp);
 	} else {
 		this_cpu_inc(dev->dstats->tx_drps);
@@ -407,6 +413,8 @@ static int vrf_finish_output6(struct net
 	struct in6_addr *nexthop;
 	int ret;
 
+	nf_reset(skb);
+
 	skb->protocol = htons(ETH_P_IPV6);
 	skb->dev = dev;
 
@@ -518,6 +526,8 @@ static int vrf_finish_output(struct net
 	u32 nexthop;
 	int ret = -EINVAL;
 
+	nf_reset(skb);
+
 	/* Be paranoid, rather than too clever. */
 	if (unlikely(skb_headroom(skb) < hh_len && dev->header_ops)) {
 		struct sk_buff *skb2;
@@ -723,15 +733,15 @@ static int vrf_del_slave(struct net_devi
 static void vrf_dev_uninit(struct net_device *dev)
 {
 	struct net_vrf *vrf = netdev_priv(dev);
-	struct slave_queue *queue = &vrf->queue;
-	struct list_head *head = &queue->all_slaves;
-	struct slave *slave, *next;
+//	struct slave_queue *queue = &vrf->queue;
+//	struct list_head *head = &queue->all_slaves;
+//	struct slave *slave, *next;
 
 	vrf_rtable_destroy(vrf);
 	vrf_rt6_destroy(vrf);
 
-	list_for_each_entry_safe(slave, next, head, list)
-		vrf_del_slave(dev, slave->dev);
+//	list_for_each_entry_safe(slave, next, head, list)
+//		vrf_del_slave(dev, slave->dev);
 
 	free_percpu(dev->dstats);
 	dev->dstats = NULL;
@@ -904,6 +914,14 @@ static int vrf_validate(struct nlattr *t
 
 static void vrf_dellink(struct net_device *dev, struct list_head *head)
 {
+	struct net_vrf *vrf = netdev_priv(dev);
+	struct slave_queue *queue = &vrf->queue;
+	struct list_head *all_slaves = &queue->all_slaves;
+	struct slave *slave, *next;
+
+	list_for_each_entry_safe(slave, next, all_slaves, list)
+		vrf_del_slave(dev, slave->dev);
+
 	unregister_netdevice_queue(dev, head);
 }
 
@@ -916,6 +934,8 @@ static int vrf_newlink(struct net *src_n
 		return -EINVAL;
 
 	vrf->tb_id = nla_get_u32(data[IFLA_VRF_TABLE]);
+	if (vrf->tb_id == RT_TABLE_UNSPEC)
+		return -EINVAL;
 
 	dev->priv_flags |= IFF_L3MDEV_MASTER;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/vxlan.c linux-libre-4.4.107-gnu/drivers/net/vxlan.c
--- linux-libre-4.4-gnu/drivers/net/vxlan.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/vxlan.c	2017-12-20 04:05:01.000000000 -0500
@@ -77,6 +77,8 @@ static const u8 all_zeros_mac[ETH_ALEN];
 
 static int vxlan_sock_add(struct vxlan_dev *vxlan);
 
+static void vxlan_vs_del_dev(struct vxlan_dev *vxlan);
+
 /* per-network namespace private data for this module */
 struct vxlan_net {
 	struct list_head  vxlan_list;
@@ -593,7 +595,7 @@ static struct sk_buff **vxlan_gro_receiv
 		}
 	}
 
-	pp = eth_gro_receive(head, skb);
+	pp = call_gro_receive(eth_gro_receive, head, skb);
 
 out:
 	skb_gro_remcsum_cleanup(skb, &grc);
@@ -1052,6 +1054,8 @@ static void __vxlan_sock_release(struct
 
 static void vxlan_sock_release(struct vxlan_dev *vxlan)
 {
+	vxlan_vs_del_dev(vxlan);
+
 	__vxlan_sock_release(vxlan->vn4_sock);
 #if IS_ENABLED(CONFIG_IPV6)
 	__vxlan_sock_release(vxlan->vn6_sock);
@@ -1254,7 +1258,7 @@ static int vxlan_udp_encap_recv(struct s
 
 	/* Need Vxlan and inner Ethernet header to be present */
 	if (!pskb_may_pull(skb, VXLAN_HLEN))
-		goto error;
+		goto drop;
 
 	vxh = (struct vxlanhdr *)(udp_hdr(skb) + 1);
 	flags = ntohl(vxh->vx_flags);
@@ -1306,8 +1310,10 @@ static int vxlan_udp_encap_recv(struct s
 		gbp = (struct vxlanhdr_gbp *)vxh;
 		md->gbp = ntohs(gbp->policy_id);
 
-		if (tun_dst)
+		if (tun_dst) {
 			tun_dst->u.tun_info.key.tun_flags |= TUNNEL_VXLAN_OPT;
+			tun_dst->u.tun_info.options_len = sizeof(*md);
+		}
 
 		if (gbp->dont_learn)
 			md->gbp |= VXLAN_GBP_DONT_LEARN;
@@ -1342,13 +1348,7 @@ drop:
 bad_flags:
 	netdev_dbg(skb->dev, "invalid vxlan flags=%#x vni=%#x\n",
 		   ntohl(vxh->vx_flags), ntohl(vxh->vx_vni));
-
-error:
-	if (tun_dst)
-		dst_release((struct dst_entry *)tun_dst);
-
-	/* Return non vxlan pkt */
-	return 1;
+	goto drop;
 }
 
 static int arp_reduce(struct net_device *dev, struct sk_buff *skb)
@@ -1984,11 +1984,6 @@ static void vxlan_xmit_one(struct sk_buf
 				     vxlan->cfg.port_max, true);
 
 	if (info) {
-		if (info->key.tun_flags & TUNNEL_CSUM)
-			flags |= VXLAN_F_UDP_CSUM;
-		else
-			flags &= ~VXLAN_F_UDP_CSUM;
-
 		ttl = info->key.ttl;
 		tos = info->key.tos;
 
@@ -2003,8 +1998,15 @@ static void vxlan_xmit_one(struct sk_buf
 			goto drop;
 		sk = vxlan->vn4_sock->sock->sk;
 
-		if (info && (info->key.tun_flags & TUNNEL_DONT_FRAGMENT))
-			df = htons(IP_DF);
+		if (info) {
+			if (info->key.tun_flags & TUNNEL_DONT_FRAGMENT)
+				df = htons(IP_DF);
+
+			if (info->key.tun_flags & TUNNEL_CSUM)
+				flags |= VXLAN_F_UDP_CSUM;
+			else
+				flags &= ~VXLAN_F_UDP_CSUM;
+		}
 
 		memset(&fl4, 0, sizeof(fl4));
 		fl4.flowi4_oif = rdst ? rdst->remote_ifindex : 0;
@@ -2102,6 +2104,13 @@ static void vxlan_xmit_one(struct sk_buf
 			return;
 		}
 
+		if (info) {
+			if (info->key.tun_flags & TUNNEL_CSUM)
+				flags &= ~VXLAN_F_UDP_ZERO_CSUM6_TX;
+			else
+				flags |= VXLAN_F_UDP_ZERO_CSUM6_TX;
+		}
+
 		ttl = ttl ? : ip6_dst_hoplimit(ndst);
 		err = vxlan6_xmit_skb(ndst, sk, skb, dev, &saddr, &dst->sin6.sin6_addr,
 				      0, ttl, src_port, dst_port, htonl(vni << 8), md,
@@ -2231,7 +2240,7 @@ static void vxlan_cleanup(unsigned long
 				= container_of(p, struct vxlan_fdb, hlist);
 			unsigned long timeout;
 
-			if (f->state & NUD_PERMANENT)
+			if (f->state & (NUD_PERMANENT | NUD_NOARP))
 				continue;
 
 			timeout = f->used + vxlan->cfg.age_interval * HZ;
@@ -2250,6 +2259,15 @@ static void vxlan_cleanup(unsigned long
 	mod_timer(&vxlan->age_timer, next_timer);
 }
 
+static void vxlan_vs_del_dev(struct vxlan_dev *vxlan)
+{
+	struct vxlan_net *vn = net_generic(vxlan->net, vxlan_net_id);
+
+	spin_lock(&vn->sock_lock);
+	hlist_del_init_rcu(&vxlan->hlist);
+	spin_unlock(&vn->sock_lock);
+}
+
 static void vxlan_vs_add_dev(struct vxlan_sock *vs, struct vxlan_dev *vxlan)
 {
 	struct vxlan_net *vn = net_generic(vxlan->net, vxlan_net_id);
@@ -2359,29 +2377,43 @@ static void vxlan_set_multicast_list(str
 {
 }
 
-static int vxlan_change_mtu(struct net_device *dev, int new_mtu)
+static int __vxlan_change_mtu(struct net_device *dev,
+			      struct net_device *lowerdev,
+			      struct vxlan_rdst *dst, int new_mtu, bool strict)
 {
-	struct vxlan_dev *vxlan = netdev_priv(dev);
-	struct vxlan_rdst *dst = &vxlan->default_dst;
-	struct net_device *lowerdev;
-	int max_mtu;
+	int max_mtu = IP_MAX_MTU;
 
-	lowerdev = __dev_get_by_index(vxlan->net, dst->remote_ifindex);
-	if (lowerdev == NULL)
-		return eth_change_mtu(dev, new_mtu);
+	if (lowerdev)
+		max_mtu = lowerdev->mtu;
 
 	if (dst->remote_ip.sa.sa_family == AF_INET6)
-		max_mtu = lowerdev->mtu - VXLAN6_HEADROOM;
+		max_mtu -= VXLAN6_HEADROOM;
 	else
-		max_mtu = lowerdev->mtu - VXLAN_HEADROOM;
+		max_mtu -= VXLAN_HEADROOM;
 
-	if (new_mtu < 68 || new_mtu > max_mtu)
+	if (new_mtu < 68)
 		return -EINVAL;
 
+	if (new_mtu > max_mtu) {
+		if (strict)
+			return -EINVAL;
+
+		new_mtu = max_mtu;
+	}
+
 	dev->mtu = new_mtu;
 	return 0;
 }
 
+static int vxlan_change_mtu(struct net_device *dev, int new_mtu)
+{
+	struct vxlan_dev *vxlan = netdev_priv(dev);
+	struct vxlan_rdst *dst = &vxlan->default_dst;
+	struct net_device *lowerdev = __dev_get_by_index(vxlan->net,
+							 dst->remote_ifindex);
+	return __vxlan_change_mtu(dev, lowerdev, dst, new_mtu, true);
+}
+
 static int egress_ipv4_tun_info(struct net_device *dev, struct sk_buff *skb,
 				struct ip_tunnel_info *info,
 				__be16 sport, __be16 dport)
@@ -2581,7 +2613,7 @@ static int vxlan_validate(struct nlattr
 
 	if (data[IFLA_VXLAN_ID]) {
 		__u32 id = nla_get_u32(data[IFLA_VXLAN_ID]);
-		if (id >= VXLAN_VID_MASK)
+		if (id >= VXLAN_N_VID)
 			return -ERANGE;
 	}
 
@@ -2751,12 +2783,13 @@ static int vxlan_dev_configure(struct ne
 			       struct vxlan_config *conf)
 {
 	struct vxlan_net *vn = net_generic(src_net, vxlan_net_id);
-	struct vxlan_dev *vxlan = netdev_priv(dev);
+	struct vxlan_dev *vxlan = netdev_priv(dev), *tmp;
 	struct vxlan_rdst *dst = &vxlan->default_dst;
 	unsigned short needed_headroom = ETH_HLEN;
 	int err;
 	bool use_ipv6 = false;
 	__be16 default_port = vxlan->cfg.dst_port;
+	struct net_device *lowerdev = NULL;
 
 	vxlan->net = src_net;
 
@@ -2777,9 +2810,7 @@ static int vxlan_dev_configure(struct ne
 	}
 
 	if (conf->remote_ifindex) {
-		struct net_device *lowerdev
-			 = __dev_get_by_index(src_net, conf->remote_ifindex);
-
+		lowerdev = __dev_get_by_index(src_net, conf->remote_ifindex);
 		dst->remote_ifindex = conf->remote_ifindex;
 
 		if (!lowerdev) {
@@ -2803,6 +2834,12 @@ static int vxlan_dev_configure(struct ne
 		needed_headroom = lowerdev->hard_header_len;
 	}
 
+	if (conf->mtu) {
+		err = __vxlan_change_mtu(dev, lowerdev, dst, conf->mtu, false);
+		if (err)
+			return err;
+	}
+
 	if (use_ipv6 || conf->flags & VXLAN_F_COLLECT_METADATA)
 		needed_headroom += VXLAN6_HEADROOM;
 	else
@@ -2817,9 +2854,15 @@ static int vxlan_dev_configure(struct ne
 	if (!vxlan->cfg.age_interval)
 		vxlan->cfg.age_interval = FDB_AGE_DEFAULT;
 
-	if (vxlan_find_vni(src_net, conf->vni, use_ipv6 ? AF_INET6 : AF_INET,
-			   vxlan->cfg.dst_port, vxlan->flags))
+	list_for_each_entry(tmp, &vn->vxlan_list, next) {
+		if (tmp->cfg.vni == conf->vni &&
+		    (tmp->default_dst.remote_ip.sa.sa_family == AF_INET6 ||
+		     tmp->cfg.saddr.sa.sa_family == AF_INET6) == use_ipv6 &&
+		    tmp->cfg.dst_port == vxlan->cfg.dst_port &&
+		    (tmp->flags & VXLAN_F_RCV_FLAGS) ==
+		    (vxlan->flags & VXLAN_F_RCV_FLAGS))
 		return -EEXIST;
+	}
 
 	dev->ethtool_ops = &vxlan_ethtool_ops;
 
@@ -2974,6 +3017,9 @@ static int vxlan_newlink(struct net *src
 	if (data[IFLA_VXLAN_REMCSUM_NOPARTIAL])
 		conf.flags |= VXLAN_F_REMCSUM_NOPARTIAL;
 
+	if (tb[IFLA_MTU])
+		conf.mtu = nla_get_u32(tb[IFLA_MTU]);
+
 	err = vxlan_dev_configure(src_net, dev, &conf);
 	switch (err) {
 	case -ENODEV:
@@ -2995,12 +3041,6 @@ static int vxlan_newlink(struct net *src
 static void vxlan_dellink(struct net_device *dev, struct list_head *head)
 {
 	struct vxlan_dev *vxlan = netdev_priv(dev);
-	struct vxlan_net *vn = net_generic(vxlan->net, vxlan_net_id);
-
-	spin_lock(&vn->sock_lock);
-	if (!hlist_unhashed(&vxlan->hlist))
-		hlist_del_rcu(&vxlan->hlist);
-	spin_unlock(&vn->sock_lock);
 
 	gro_cells_destroy(&vxlan->gro_cells);
 	list_del(&vxlan->next);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wan/farsync.c linux-libre-4.4.107-gnu/drivers/net/wan/farsync.c
--- linux-libre-4.4-gnu/drivers/net/wan/farsync.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wan/farsync.c	2017-12-20 04:05:01.000000000 -0500
@@ -2516,7 +2516,7 @@ fst_add_one(struct pci_dev *pdev, const
                 dev->mem_start   = card->phys_mem
                                  + BUF_OFFSET ( txBuffer[i][0][0]);
                 dev->mem_end     = card->phys_mem
-                                 + BUF_OFFSET ( txBuffer[i][NUM_TX_BUFFER][0]);
+                                 + BUF_OFFSET ( txBuffer[i][NUM_TX_BUFFER - 1][LEN_RX_BUFFER - 1]);
                 dev->base_addr   = card->pci_conf;
                 dev->irq         = card->irq;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wimax/i2400m/usb.c linux-libre-4.4.107-gnu/drivers/net/wimax/i2400m/usb.c
--- linux-libre-4.4-gnu/drivers/net/wimax/i2400m/usb.c	2016-01-10 21:12:22.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wimax/i2400m/usb.c	2017-12-20 11:39:45.000000000 -0500
@@ -467,6 +467,9 @@ int i2400mu_probe(struct usb_interface *
 	struct i2400mu *i2400mu;
 	struct usb_device *usb_dev = interface_to_usbdev(iface);
 
+	if (iface->cur_altsetting->desc.bNumEndpoints < 4)
+		return -ENODEV;
+
 	if (usb_dev->speed != USB_SPEED_HIGH)
 		dev_err(dev, "device not connected as high speed\n");
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/ath/ath10k/core.c linux-libre-4.4.107-gnu/drivers/net/wireless/ath/ath10k/core.c
--- linux-libre-4.4-gnu/drivers/net/wireless/ath/ath10k/core.c	2016-01-10 21:09:13.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/ath/ath10k/core.c	2017-12-20 11:33:40.000000000 -0500
@@ -548,8 +548,11 @@ static int ath10k_core_get_board_id_from
 		   "boot get otp board id result 0x%08x board_id %d chip_id %d\n",
 		   result, board_id, chip_id);
 
-	if ((result & ATH10K_BMI_BOARD_ID_STATUS_MASK) != 0)
+	if ((result & ATH10K_BMI_BOARD_ID_STATUS_MASK) != 0 ||
+	    (board_id == 0)) {
+		ath10k_warn(ar, "board id is not exist in otp, ignore it\n");
 		return -EOPNOTSUPP;
+	}
 
 	ar->id.bmi_ids_valid = true;
 	ar->id.bmi_board_id = board_id;
@@ -1607,6 +1610,12 @@ int ath10k_core_start(struct ath10k *ar,
 		goto err_wmi_detach;
 	}
 
+	/* If firmware indicates Full Rx Reorder support it must be used in a
+	 * slightly different manner. Let HTT code know.
+	 */
+	ar->htt.rx_ring.in_ord_rx = !!(test_bit(WMI_SERVICE_RX_FULL_REORDER,
+						ar->wmi.svc_map));
+
 	status = ath10k_htt_rx_alloc(&ar->htt);
 	if (status) {
 		ath10k_err(ar, "failed to alloc htt rx: %d\n", status);
@@ -1669,18 +1678,16 @@ int ath10k_core_start(struct ath10k *ar,
 		goto err_hif_stop;
 	}
 
-	/* If firmware indicates Full Rx Reorder support it must be used in a
-	 * slightly different manner. Let HTT code know.
-	 */
-	ar->htt.rx_ring.in_ord_rx = !!(test_bit(WMI_SERVICE_RX_FULL_REORDER,
-						ar->wmi.svc_map));
-
 	status = ath10k_htt_rx_ring_refill(ar);
 	if (status) {
 		ath10k_err(ar, "failed to refill htt rx ring: %d\n", status);
 		goto err_hif_stop;
 	}
 
+	ar->free_vdev_map = (1LL << ar->max_num_vdevs) - 1;
+
+	INIT_LIST_HEAD(&ar->arvifs);
+
 	/* we don't care about HTT in UTF mode */
 	if (mode == ATH10K_FIRMWARE_MODE_NORMAL) {
 		status = ath10k_htt_setup(&ar->htt);
@@ -1694,10 +1701,6 @@ int ath10k_core_start(struct ath10k *ar,
 	if (status)
 		goto err_hif_stop;
 
-	ar->free_vdev_map = (1LL << ar->max_num_vdevs) - 1;
-
-	INIT_LIST_HEAD(&ar->arvifs);
-
 	return 0;
 
 err_hif_stop:
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/ath/ath10k/debug.c linux-libre-4.4.107-gnu/drivers/net/wireless/ath/ath10k/debug.c
--- linux-libre-4.4-gnu/drivers/net/wireless/ath/ath10k/debug.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/ath/ath10k/debug.c	2017-12-20 04:05:01.000000000 -0500
@@ -1986,7 +1986,12 @@ static ssize_t ath10k_write_pktlog_filte
 		goto out;
 	}
 
-	if (filter && (filter != ar->debug.pktlog_filter)) {
+	if (filter == ar->debug.pktlog_filter) {
+		ret = count;
+		goto out;
+	}
+
+	if (filter) {
 		ret = ath10k_wmi_pdev_pktlog_enable(ar, filter);
 		if (ret) {
 			ath10k_warn(ar, "failed to enable pktlog filter %x: %d\n",
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/ath/ath10k/mac.c linux-libre-4.4.107-gnu/drivers/net/wireless/ath/ath10k/mac.c
--- linux-libre-4.4-gnu/drivers/net/wireless/ath/ath10k/mac.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/ath/ath10k/mac.c	2017-12-20 04:05:01.000000000 -0500
@@ -1127,6 +1127,36 @@ static int ath10k_monitor_recalc(struct
 		return ath10k_monitor_stop(ar);
 }
 
+static bool ath10k_mac_can_set_cts_prot(struct ath10k_vif *arvif)
+{
+	struct ath10k *ar = arvif->ar;
+
+	lockdep_assert_held(&ar->conf_mutex);
+
+	if (!arvif->is_started) {
+		ath10k_dbg(ar, ATH10K_DBG_MAC, "defer cts setup, vdev is not ready yet\n");
+		return false;
+	}
+
+	return true;
+}
+
+static int ath10k_mac_set_cts_prot(struct ath10k_vif *arvif)
+{
+	struct ath10k *ar = arvif->ar;
+	u32 vdev_param;
+
+	lockdep_assert_held(&ar->conf_mutex);
+
+	vdev_param = ar->wmi.vdev_param->protection_mode;
+
+	ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev %d cts_protection %d\n",
+		   arvif->vdev_id, arvif->use_cts_prot);
+
+	return ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
+					 arvif->use_cts_prot ? 1 : 0);
+}
+
 static int ath10k_recalc_rtscts_prot(struct ath10k_vif *arvif)
 {
 	struct ath10k *ar = arvif->ar;
@@ -4180,7 +4210,8 @@ static int ath10k_mac_txpower_recalc(str
 	lockdep_assert_held(&ar->conf_mutex);
 
 	list_for_each_entry(arvif, &ar->arvifs, list) {
-		WARN_ON(arvif->txpower < 0);
+		if (arvif->txpower <= 0)
+			continue;
 
 		if (txpower == -1)
 			txpower = arvif->txpower;
@@ -4188,8 +4219,8 @@ static int ath10k_mac_txpower_recalc(str
 			txpower = min(txpower, arvif->txpower);
 	}
 
-	if (WARN_ON(txpower == -1))
-		return -EINVAL;
+	if (txpower == -1)
+		return 0;
 
 	ret = ath10k_mac_txpower_setup(ar, txpower);
 	if (ret) {
@@ -4456,7 +4487,10 @@ static int ath10k_add_interface(struct i
 		goto err_vdev_delete;
 	}
 
-	if (ar->cfg_tx_chainmask) {
+	/* Configuring number of spatial stream for monitor interface is causing
+	 * target assert in qca9888 and qca6174.
+	 */
+	if (ar->cfg_tx_chainmask && (vif->type != NL80211_IFTYPE_MONITOR)) {
 		u16 nss = get_nss_from_chainmask(ar->cfg_tx_chainmask);
 
 		vdev_param = ar->wmi.vdev_param->nss;
@@ -4784,20 +4818,18 @@ static void ath10k_bss_info_changed(stru
 
 	if (changed & BSS_CHANGED_ERP_CTS_PROT) {
 		arvif->use_cts_prot = info->use_cts_prot;
-		ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev %d cts_prot %d\n",
-			   arvif->vdev_id, info->use_cts_prot);
 
 		ret = ath10k_recalc_rtscts_prot(arvif);
 		if (ret)
 			ath10k_warn(ar, "failed to recalculate rts/cts prot for vdev %d: %d\n",
 				    arvif->vdev_id, ret);
 
-		vdev_param = ar->wmi.vdev_param->protection_mode;
-		ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
-						info->use_cts_prot ? 1 : 0);
-		if (ret)
-			ath10k_warn(ar, "failed to set protection mode %d on vdev %i: %d\n",
-				    info->use_cts_prot, arvif->vdev_id, ret);
+		if (ath10k_mac_can_set_cts_prot(arvif)) {
+			ret = ath10k_mac_set_cts_prot(arvif);
+			if (ret)
+				ath10k_warn(ar, "failed to set cts protection for vdev %d: %d\n",
+					    arvif->vdev_id, ret);
+		}
 	}
 
 	if (changed & BSS_CHANGED_ERP_SLOT) {
@@ -6348,12 +6380,13 @@ static u64 ath10k_get_tsf(struct ieee802
 
 static int ath10k_ampdu_action(struct ieee80211_hw *hw,
 			       struct ieee80211_vif *vif,
-			       enum ieee80211_ampdu_mlme_action action,
-			       struct ieee80211_sta *sta, u16 tid, u16 *ssn,
-			       u8 buf_size, bool amsdu)
+			       struct ieee80211_ampdu_params *params)
 {
 	struct ath10k *ar = hw->priv;
 	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
+	struct ieee80211_sta *sta = params->sta;
+	enum ieee80211_ampdu_mlme_action action = params->action;
+	u16 tid = params->tid;
 
 	ath10k_dbg(ar, ATH10K_DBG_MAC, "mac ampdu vdev_id %i sta %pM tid %hu action %d\n",
 		   arvif->vdev_id, sta->addr, tid, action);
@@ -6416,7 +6449,13 @@ ath10k_mac_update_rx_channel(struct ath1
 			def = &vifs[0].new_ctx->def;
 
 		ar->rx_channel = def->chan;
-	} else if (ctx && ath10k_mac_num_chanctxs(ar) == 0) {
+	} else if ((ctx && ath10k_mac_num_chanctxs(ar) == 0) ||
+		   (ctx && (ar->state == ATH10K_STATE_RESTARTED))) {
+		/* During driver restart due to firmware assert, since mac80211
+		 * already has valid channel context for given radio, channel
+		 * context iteration return num_chanctx > 0. So fix rx_channel
+		 * when restart is in progress.
+		 */
 		ar->rx_channel = ctx->def.chan;
 	} else {
 		ar->rx_channel = NULL;
@@ -6702,6 +6741,13 @@ ath10k_mac_op_assign_vif_chanctx(struct
 		arvif->is_up = true;
 	}
 
+	if (ath10k_mac_can_set_cts_prot(arvif)) {
+		ret = ath10k_mac_set_cts_prot(arvif);
+		if (ret)
+			ath10k_warn(ar, "failed to set cts protection for vdev %d: %d\n",
+				    arvif->vdev_id, ret);
+	}
+
 	mutex_unlock(&ar->conf_mutex);
 	return 0;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/ath/ath10k/pci.c linux-libre-4.4.107-gnu/drivers/net/wireless/ath/ath10k/pci.c
--- linux-libre-4.4-gnu/drivers/net/wireless/ath/ath10k/pci.c	2016-01-10 21:09:19.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/ath/ath10k/pci.c	2017-12-20 11:33:50.000000000 -0500
@@ -3050,7 +3050,7 @@ static int ath10k_pci_probe(struct pci_d
 		goto err_core_destroy;
 	}
 
-	if (QCA_REV_6174(ar))
+	if (QCA_REV_6174(ar) || QCA_REV_9377(ar))
 		ath10k_pci_override_ce_config(ar);
 
 	ret = ath10k_pci_alloc_pipes(ar);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/ath/ath10k/spectral.c linux-libre-4.4.107-gnu/drivers/net/wireless/ath/ath10k/spectral.c
--- linux-libre-4.4-gnu/drivers/net/wireless/ath/ath10k/spectral.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/ath/ath10k/spectral.c	2017-12-20 04:05:01.000000000 -0500
@@ -338,7 +338,7 @@ static ssize_t write_file_spec_scan_ctl(
 		} else {
 			res = -EINVAL;
 		}
-	} else if (strncmp("background", buf, 9) == 0) {
+	} else if (strncmp("background", buf, 10) == 0) {
 		res = ath10k_spectral_scan_config(ar, SPECTRAL_BACKGROUND);
 	} else if (strncmp("manual", buf, 6) == 0) {
 		res = ath10k_spectral_scan_config(ar, SPECTRAL_MANUAL);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/ath/ath10k/wmi-ops.h linux-libre-4.4.107-gnu/drivers/net/wireless/ath/ath10k/wmi-ops.h
--- linux-libre-4.4-gnu/drivers/net/wireless/ath/ath10k/wmi-ops.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/ath/ath10k/wmi-ops.h	2017-12-20 04:05:01.000000000 -0500
@@ -639,6 +639,9 @@ ath10k_wmi_vdev_spectral_conf(struct ath
 	struct sk_buff *skb;
 	u32 cmd_id;
 
+	if (!ar->wmi.ops->gen_vdev_spectral_conf)
+		return -EOPNOTSUPP;
+
 	skb = ar->wmi.ops->gen_vdev_spectral_conf(ar, arg);
 	if (IS_ERR(skb))
 		return PTR_ERR(skb);
@@ -654,6 +657,9 @@ ath10k_wmi_vdev_spectral_enable(struct a
 	struct sk_buff *skb;
 	u32 cmd_id;
 
+	if (!ar->wmi.ops->gen_vdev_spectral_enable)
+		return -EOPNOTSUPP;
+
 	skb = ar->wmi.ops->gen_vdev_spectral_enable(ar, vdev_id, trigger,
 						    enable);
 	if (IS_ERR(skb))
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/ath/ath10k/wmi-tlv.c linux-libre-4.4.107-gnu/drivers/net/wireless/ath/ath10k/wmi-tlv.c
--- linux-libre-4.4-gnu/drivers/net/wireless/ath/ath10k/wmi-tlv.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/ath/ath10k/wmi-tlv.c	2017-12-20 04:05:01.000000000 -0500
@@ -1105,8 +1105,10 @@ static int ath10k_wmi_tlv_op_pull_fw_sta
 		struct ath10k_fw_stats_pdev *dst;
 
 		src = data;
-		if (data_len < sizeof(*src))
+		if (data_len < sizeof(*src)) {
+			kfree(tb);
 			return -EPROTO;
+		}
 
 		data += sizeof(*src);
 		data_len -= sizeof(*src);
@@ -1126,8 +1128,10 @@ static int ath10k_wmi_tlv_op_pull_fw_sta
 		struct ath10k_fw_stats_vdev *dst;
 
 		src = data;
-		if (data_len < sizeof(*src))
+		if (data_len < sizeof(*src)) {
+			kfree(tb);
 			return -EPROTO;
+		}
 
 		data += sizeof(*src);
 		data_len -= sizeof(*src);
@@ -1145,8 +1149,10 @@ static int ath10k_wmi_tlv_op_pull_fw_sta
 		struct ath10k_fw_stats_peer *dst;
 
 		src = data;
-		if (data_len < sizeof(*src))
+		if (data_len < sizeof(*src)) {
+			kfree(tb);
 			return -EPROTO;
+		}
 
 		data += sizeof(*src);
 		data_len -= sizeof(*src);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/ath/ath5k/led.c linux-libre-4.4.107-gnu/drivers/net/wireless/ath/ath5k/led.c
--- linux-libre-4.4-gnu/drivers/net/wireless/ath/ath5k/led.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/ath/ath5k/led.c	2017-12-20 04:05:01.000000000 -0500
@@ -77,7 +77,7 @@ static const struct pci_device_id ath5k_
 	/* HP Compaq CQ60-206US (ddreggors@jumptv.com) */
 	{ ATH_SDEVICE(PCI_VENDOR_ID_HP, 0x0137a), ATH_LED(3, 1) },
 	/* HP Compaq C700 (nitrousnrg@gmail.com) */
-	{ ATH_SDEVICE(PCI_VENDOR_ID_HP, 0x0137b), ATH_LED(3, 1) },
+	{ ATH_SDEVICE(PCI_VENDOR_ID_HP, 0x0137b), ATH_LED(3, 0) },
 	/* LiteOn AR5BXB63 (magooz@salug.it) */
 	{ ATH_SDEVICE(PCI_VENDOR_ID_ATHEROS, 0x3067), ATH_LED(3, 0) },
 	/* IBM-specific AR5212 (all others) */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/ath/ath5k/mac80211-ops.c linux-libre-4.4.107-gnu/drivers/net/wireless/ath/ath5k/mac80211-ops.c
--- linux-libre-4.4-gnu/drivers/net/wireless/ath/ath5k/mac80211-ops.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/ath/ath5k/mac80211-ops.c	2017-12-20 04:05:01.000000000 -0500
@@ -502,8 +502,7 @@ ath5k_set_key(struct ieee80211_hw *hw, e
 			break;
 		return -EOPNOTSUPP;
 	default:
-		WARN_ON(1);
-		return -EINVAL;
+		return -EOPNOTSUPP;
 	}
 
 	mutex_lock(&ah->lock);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/ath/ath9k/ar5008_phy.c linux-libre-4.4.107-gnu/drivers/net/wireless/ath/ath9k/ar5008_phy.c
--- linux-libre-4.4-gnu/drivers/net/wireless/ath/ath9k/ar5008_phy.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/ath/ath9k/ar5008_phy.c	2017-12-20 04:05:01.000000000 -0500
@@ -274,6 +274,9 @@ void ar5008_hw_cmn_spur_mitigate(struct
 	};
 	static const int inc[4] = { 0, 100, 0, 0 };
 
+	memset(&mask_m, 0, sizeof(int8_t) * 123);
+	memset(&mask_p, 0, sizeof(int8_t) * 123);
+
 	cur_bin = -6000;
 	upper = bin + 100;
 	lower = bin - 100;
@@ -424,14 +427,9 @@ static void ar5008_hw_spur_mitigate(stru
 	int tmp, new;
 	int i;
 
-	int8_t mask_m[123];
-	int8_t mask_p[123];
 	int cur_bb_spur;
 	bool is2GHz = IS_CHAN_2GHZ(chan);
 
-	memset(&mask_m, 0, sizeof(int8_t) * 123);
-	memset(&mask_p, 0, sizeof(int8_t) * 123);
-
 	for (i = 0; i < AR_EEPROM_MODAL_SPURS; i++) {
 		cur_bb_spur = ah->eep_ops->get_spur_channel(ah, i, is2GHz);
 		if (AR_NO_SPUR == cur_bb_spur)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/ath/ath9k/ar9002_phy.c linux-libre-4.4.107-gnu/drivers/net/wireless/ath/ath9k/ar9002_phy.c
--- linux-libre-4.4-gnu/drivers/net/wireless/ath/ath9k/ar9002_phy.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/ath/ath9k/ar9002_phy.c	2017-12-20 04:05:01.000000000 -0500
@@ -178,14 +178,9 @@ static void ar9002_hw_spur_mitigate(stru
 	int i;
 	struct chan_centers centers;
 
-	int8_t mask_m[123];
-	int8_t mask_p[123];
 	int cur_bb_spur;
 	bool is2GHz = IS_CHAN_2GHZ(chan);
 
-	memset(&mask_m, 0, sizeof(int8_t) * 123);
-	memset(&mask_p, 0, sizeof(int8_t) * 123);
-
 	ath9k_hw_get_channel_centers(ah, chan, &centers);
 	freq = centers.synth_center;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c linux-libre-4.4.107-gnu/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
--- linux-libre-4.4-gnu/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c	2017-12-20 04:05:01.000000000 -0500
@@ -4176,7 +4176,7 @@ static void ath9k_hw_ar9300_set_board_va
 	if (!AR_SREV_9330(ah) && !AR_SREV_9340(ah) && !AR_SREV_9531(ah))
 		ar9003_hw_internal_regulator_apply(ah);
 	ar9003_hw_apply_tuning_caps(ah);
-	ar9003_hw_apply_minccapwr_thresh(ah, chan);
+	ar9003_hw_apply_minccapwr_thresh(ah, is2ghz);
 	ar9003_hw_txend_to_xpa_off_apply(ah, is2ghz);
 	ar9003_hw_thermometer_apply(ah);
 	ar9003_hw_thermo_cal_apply(ah);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/ath/ath9k/ar9003_eeprom.h linux-libre-4.4.107-gnu/drivers/net/wireless/ath/ath9k/ar9003_eeprom.h
--- linux-libre-4.4-gnu/drivers/net/wireless/ath/ath9k/ar9003_eeprom.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/ath/ath9k/ar9003_eeprom.h	2017-12-20 04:05:01.000000000 -0500
@@ -73,13 +73,13 @@
 #define AR9300_OTP_BASE \
 		((AR_SREV_9340(ah) || AR_SREV_9550(ah)) ? 0x30000 : 0x14000)
 #define AR9300_OTP_STATUS \
-		((AR_SREV_9340(ah) || AR_SREV_9550(ah)) ? 0x30018 : 0x15f18)
+		((AR_SREV_9340(ah) || AR_SREV_9550(ah)) ? 0x31018 : 0x15f18)
 #define AR9300_OTP_STATUS_TYPE		0x7
 #define AR9300_OTP_STATUS_VALID		0x4
 #define AR9300_OTP_STATUS_ACCESS_BUSY	0x2
 #define AR9300_OTP_STATUS_SM_BUSY	0x1
 #define AR9300_OTP_READ_DATA \
-		((AR_SREV_9340(ah) || AR_SREV_9550(ah)) ? 0x3001c : 0x15f1c)
+		((AR_SREV_9340(ah) || AR_SREV_9550(ah)) ? 0x3101c : 0x15f1c)
 
 enum targetPowerHTRates {
 	HT_TARGET_RATE_0_8_16,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/ath/ath9k/ar9003_phy.c linux-libre-4.4.107-gnu/drivers/net/wireless/ath/ath9k/ar9003_phy.c
--- linux-libre-4.4-gnu/drivers/net/wireless/ath/ath9k/ar9003_phy.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/ath/ath9k/ar9003_phy.c	2017-12-20 04:05:01.000000000 -0500
@@ -1815,8 +1815,6 @@ static void ar9003_hw_spectral_scan_wait
 static void ar9003_hw_tx99_start(struct ath_hw *ah, u32 qnum)
 {
 	REG_SET_BIT(ah, AR_PHY_TEST, PHY_AGC_CLR);
-	REG_SET_BIT(ah, 0x9864, 0x7f000);
-	REG_SET_BIT(ah, 0x9924, 0x7f00fe);
 	REG_CLR_BIT(ah, AR_DIAG_SW, AR_DIAG_RX_DIS);
 	REG_WRITE(ah, AR_CR, AR_CR_RXD);
 	REG_WRITE(ah, AR_DLCL_IFS(qnum), 0);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/ath/ath9k/ath9k.h linux-libre-4.4.107-gnu/drivers/net/wireless/ath/ath9k/ath9k.h
--- linux-libre-4.4-gnu/drivers/net/wireless/ath/ath9k/ath9k.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/ath/ath9k/ath9k.h	2017-12-20 04:05:01.000000000 -0500
@@ -959,6 +959,7 @@ struct ath_softc {
 	struct survey_info *cur_survey;
 	struct survey_info survey[ATH9K_NUM_CHANNELS];
 
+	spinlock_t intr_lock;
 	struct tasklet_struct intr_tq;
 	struct tasklet_struct bcon_tasklet;
 	struct ath_hw *sc_ah;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/ath/ath9k/common-spectral.c linux-libre-4.4.107-gnu/drivers/net/wireless/ath/ath9k/common-spectral.c
--- linux-libre-4.4-gnu/drivers/net/wireless/ath/ath9k/common-spectral.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/ath/ath9k/common-spectral.c	2017-12-20 04:05:01.000000000 -0500
@@ -528,6 +528,9 @@ int ath_cmn_process_fft(struct ath_spec_
 	if (!(radar_info->pulse_bw_info & SPECTRAL_SCAN_BITMASK))
 		return 0;
 
+	if (!spec_priv->rfs_chan_spec_scan)
+		return 1;
+
 	/* Output buffers are full, no need to process anything
 	 * since there is no space to put the result anyway
 	 */
@@ -1072,7 +1075,7 @@ static struct rchan_callbacks rfs_spec_s
 
 void ath9k_cmn_spectral_deinit_debug(struct ath_spec_scan_priv *spec_priv)
 {
-	if (config_enabled(CONFIG_ATH9K_DEBUGFS)) {
+	if (config_enabled(CONFIG_ATH9K_DEBUGFS) && spec_priv->rfs_chan_spec_scan) {
 		relay_close(spec_priv->rfs_chan_spec_scan);
 		spec_priv->rfs_chan_spec_scan = NULL;
 	}
@@ -1086,6 +1089,9 @@ void ath9k_cmn_spectral_init_debug(struc
 					    debugfs_phy,
 					    1024, 256, &rfs_spec_scan_cb,
 					    NULL);
+	if (!spec_priv->rfs_chan_spec_scan)
+		return;
+
 	debugfs_create_file("spectral_scan_ctl",
 			    S_IRUSR | S_IWUSR,
 			    debugfs_phy, spec_priv,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/ath/ath9k/eeprom.c linux-libre-4.4.107-gnu/drivers/net/wireless/ath/ath9k/eeprom.c
--- linux-libre-4.4-gnu/drivers/net/wireless/ath/ath9k/eeprom.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/ath/ath9k/eeprom.c	2017-12-20 04:05:01.000000000 -0500
@@ -403,10 +403,9 @@ void ath9k_hw_get_gain_boundaries_pdadcs
 
 	if (match) {
 		if (AR_SREV_9287(ah)) {
-			/* FIXME: array overrun? */
 			for (i = 0; i < numXpdGains; i++) {
 				minPwrT4[i] = data_9287[idxL].pwrPdg[i][0];
-				maxPwrT4[i] = data_9287[idxL].pwrPdg[i][4];
+				maxPwrT4[i] = data_9287[idxL].pwrPdg[i][intercepts - 1];
 				ath9k_hw_fill_vpd_table(minPwrT4[i], maxPwrT4[i],
 						data_9287[idxL].pwrPdg[i],
 						data_9287[idxL].vpdPdg[i],
@@ -416,7 +415,7 @@ void ath9k_hw_get_gain_boundaries_pdadcs
 		} else if (eeprom_4k) {
 			for (i = 0; i < numXpdGains; i++) {
 				minPwrT4[i] = data_4k[idxL].pwrPdg[i][0];
-				maxPwrT4[i] = data_4k[idxL].pwrPdg[i][4];
+				maxPwrT4[i] = data_4k[idxL].pwrPdg[i][intercepts - 1];
 				ath9k_hw_fill_vpd_table(minPwrT4[i], maxPwrT4[i],
 						data_4k[idxL].pwrPdg[i],
 						data_4k[idxL].vpdPdg[i],
@@ -426,7 +425,7 @@ void ath9k_hw_get_gain_boundaries_pdadcs
 		} else {
 			for (i = 0; i < numXpdGains; i++) {
 				minPwrT4[i] = data_def[idxL].pwrPdg[i][0];
-				maxPwrT4[i] = data_def[idxL].pwrPdg[i][4];
+				maxPwrT4[i] = data_def[idxL].pwrPdg[i][intercepts - 1];
 				ath9k_hw_fill_vpd_table(minPwrT4[i], maxPwrT4[i],
 						data_def[idxL].pwrPdg[i],
 						data_def[idxL].vpdPdg[i],
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/ath/ath9k/hif_usb.c linux-libre-4.4.107-gnu/drivers/net/wireless/ath/ath9k/hif_usb.c
--- linux-libre-4.4-gnu/drivers/net/wireless/ath/ath9k/hif_usb.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/ath/ath9k/hif_usb.c	2017-12-20 04:05:01.000000000 -0500
@@ -37,6 +37,7 @@ static struct usb_device_id ath9k_hif_us
 	{ USB_DEVICE(0x0cf3, 0xb002) }, /* Ubiquiti WifiStation */
 	{ USB_DEVICE(0x057c, 0x8403) }, /* AVM FRITZ!WLAN 11N v2 USB */
 	{ USB_DEVICE(0x0471, 0x209e) }, /* Philips (or NXP) PTA01 */
+	{ USB_DEVICE(0x1eda, 0x2315) }, /* AirTies */
 
 	{ USB_DEVICE(0x0cf3, 0x7015),
 	  .driver_info = AR9287_USB },  /* Atheros */
@@ -1216,6 +1217,9 @@ static int send_eject_command(struct usb
 	u8 bulk_out_ep;
 	int r;
 
+	if (iface_desc->desc.bNumEndpoints < 2)
+		return -ENODEV;
+
 	/* Find bulk out endpoint */
 	for (r = 1; r >= 0; r--) {
 		endpoint = &iface_desc->endpoint[r].desc;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/ath/ath9k/htc_drv_main.c linux-libre-4.4.107-gnu/drivers/net/wireless/ath/ath9k/htc_drv_main.c
--- linux-libre-4.4-gnu/drivers/net/wireless/ath/ath9k/htc_drv_main.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/ath/ath9k/htc_drv_main.c	2017-12-20 04:05:01.000000000 -0500
@@ -1657,13 +1657,14 @@ static void ath9k_htc_reset_tsf(struct i
 
 static int ath9k_htc_ampdu_action(struct ieee80211_hw *hw,
 				  struct ieee80211_vif *vif,
-				  enum ieee80211_ampdu_mlme_action action,
-				  struct ieee80211_sta *sta,
-				  u16 tid, u16 *ssn, u8 buf_size, bool amsdu)
+				  struct ieee80211_ampdu_params *params)
 {
 	struct ath9k_htc_priv *priv = hw->priv;
 	struct ath9k_htc_sta *ista;
 	int ret = 0;
+	struct ieee80211_sta *sta = params->sta;
+	enum ieee80211_ampdu_mlme_action action = params->action;
+	u16 tid = params->tid;
 
 	mutex_lock(&priv->mutex);
 	ath9k_htc_ps_wakeup(priv);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/ath/ath9k/init.c linux-libre-4.4.107-gnu/drivers/net/wireless/ath/ath9k/init.c
--- linux-libre-4.4-gnu/drivers/net/wireless/ath/ath9k/init.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/ath/ath9k/init.c	2017-12-20 04:05:01.000000000 -0500
@@ -49,6 +49,10 @@ int ath9k_led_blink;
 module_param_named(blink, ath9k_led_blink, int, 0444);
 MODULE_PARM_DESC(blink, "Enable LED blink on activity");
 
+static int ath9k_led_active_high = -1;
+module_param_named(led_active_high, ath9k_led_active_high, int, 0444);
+MODULE_PARM_DESC(led_active_high, "Invert LED polarity");
+
 static int ath9k_btcoex_enable;
 module_param_named(btcoex_enable, ath9k_btcoex_enable, int, 0444);
 MODULE_PARM_DESC(btcoex_enable, "Enable wifi-BT coexistence");
@@ -600,6 +604,9 @@ static int ath9k_init_softc(u16 devid, s
 	if (ret)
 		return ret;
 
+	if (ath9k_led_active_high != -1)
+		ah->config.led_active_high = ath9k_led_active_high == 1;
+
 	/*
 	 * Enable WLAN/BT RX Antenna diversity only when:
 	 *
@@ -612,6 +619,7 @@ static int ath9k_init_softc(u16 devid, s
 		common->bt_ant_diversity = 1;
 
 	spin_lock_init(&common->cc_lock);
+	spin_lock_init(&sc->intr_lock);
 	spin_lock_init(&sc->sc_serial_rw);
 	spin_lock_init(&sc->sc_pm_lock);
 	spin_lock_init(&sc->chan_lock);
@@ -862,8 +870,8 @@ static void ath9k_set_hw_capab(struct at
 			hw->wiphy->interface_modes |=
 					BIT(NL80211_IFTYPE_P2P_DEVICE);
 
-			hw->wiphy->iface_combinations = if_comb;
-			hw->wiphy->n_iface_combinations = ARRAY_SIZE(if_comb);
+		hw->wiphy->iface_combinations = if_comb;
+		hw->wiphy->n_iface_combinations = ARRAY_SIZE(if_comb);
 	}
 
 	hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/ath/ath9k/mac.c linux-libre-4.4.107-gnu/drivers/net/wireless/ath/ath9k/mac.c
--- linux-libre-4.4-gnu/drivers/net/wireless/ath/ath9k/mac.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/ath/ath9k/mac.c	2017-12-20 04:05:01.000000000 -0500
@@ -805,21 +805,12 @@ void ath9k_hw_disable_interrupts(struct
 }
 EXPORT_SYMBOL(ath9k_hw_disable_interrupts);
 
-void ath9k_hw_enable_interrupts(struct ath_hw *ah)
+static void __ath9k_hw_enable_interrupts(struct ath_hw *ah)
 {
 	struct ath_common *common = ath9k_hw_common(ah);
 	u32 sync_default = AR_INTR_SYNC_DEFAULT;
 	u32 async_mask;
 
-	if (!(ah->imask & ATH9K_INT_GLOBAL))
-		return;
-
-	if (!atomic_inc_and_test(&ah->intr_ref_cnt)) {
-		ath_dbg(common, INTERRUPT, "Do not enable IER ref count %d\n",
-			atomic_read(&ah->intr_ref_cnt));
-		return;
-	}
-
 	if (AR_SREV_9340(ah) || AR_SREV_9550(ah) || AR_SREV_9531(ah) ||
 	    AR_SREV_9561(ah))
 		sync_default &= ~AR_INTR_SYNC_HOST1_FATAL;
@@ -841,6 +832,39 @@ void ath9k_hw_enable_interrupts(struct a
 	ath_dbg(common, INTERRUPT, "AR_IMR 0x%x IER 0x%x\n",
 		REG_READ(ah, AR_IMR), REG_READ(ah, AR_IER));
 }
+
+void ath9k_hw_resume_interrupts(struct ath_hw *ah)
+{
+	struct ath_common *common = ath9k_hw_common(ah);
+
+	if (!(ah->imask & ATH9K_INT_GLOBAL))
+		return;
+
+	if (atomic_read(&ah->intr_ref_cnt) != 0) {
+		ath_dbg(common, INTERRUPT, "Do not enable IER ref count %d\n",
+			atomic_read(&ah->intr_ref_cnt));
+		return;
+	}
+
+	__ath9k_hw_enable_interrupts(ah);
+}
+EXPORT_SYMBOL(ath9k_hw_resume_interrupts);
+
+void ath9k_hw_enable_interrupts(struct ath_hw *ah)
+{
+	struct ath_common *common = ath9k_hw_common(ah);
+
+	if (!(ah->imask & ATH9K_INT_GLOBAL))
+		return;
+
+	if (!atomic_inc_and_test(&ah->intr_ref_cnt)) {
+		ath_dbg(common, INTERRUPT, "Do not enable IER ref count %d\n",
+			atomic_read(&ah->intr_ref_cnt));
+		return;
+	}
+
+	__ath9k_hw_enable_interrupts(ah);
+}
 EXPORT_SYMBOL(ath9k_hw_enable_interrupts);
 
 void ath9k_hw_set_interrupts(struct ath_hw *ah)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/ath/ath9k/mac.h linux-libre-4.4.107-gnu/drivers/net/wireless/ath/ath9k/mac.h
--- linux-libre-4.4-gnu/drivers/net/wireless/ath/ath9k/mac.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/ath/ath9k/mac.h	2017-12-20 04:05:01.000000000 -0500
@@ -748,6 +748,7 @@ void ath9k_hw_set_interrupts(struct ath_
 void ath9k_hw_enable_interrupts(struct ath_hw *ah);
 void ath9k_hw_disable_interrupts(struct ath_hw *ah);
 void ath9k_hw_kill_interrupts(struct ath_hw *ah);
+void ath9k_hw_resume_interrupts(struct ath_hw *ah);
 
 void ar9002_hw_attach_mac_ops(struct ath_hw *ah);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/ath/ath9k/main.c linux-libre-4.4.107-gnu/drivers/net/wireless/ath/ath9k/main.c
--- linux-libre-4.4-gnu/drivers/net/wireless/ath/ath9k/main.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/ath/ath9k/main.c	2017-12-20 04:05:01.000000000 -0500
@@ -373,21 +373,20 @@ void ath9k_tasklet(unsigned long data)
 	struct ath_common *common = ath9k_hw_common(ah);
 	enum ath_reset_type type;
 	unsigned long flags;
-	u32 status = sc->intrstatus;
+	u32 status;
 	u32 rxmask;
 
+	spin_lock_irqsave(&sc->intr_lock, flags);
+	status = sc->intrstatus;
+	sc->intrstatus = 0;
+	spin_unlock_irqrestore(&sc->intr_lock, flags);
+
 	ath9k_ps_wakeup(sc);
 	spin_lock(&sc->sc_pcu_lock);
 
 	if (status & ATH9K_INT_FATAL) {
 		type = RESET_TYPE_FATAL_INT;
 		ath9k_queue_reset(sc, type);
-
-		/*
-		 * Increment the ref. counter here so that
-		 * interrupts are enabled in the reset routine.
-		 */
-		atomic_inc(&ah->intr_ref_cnt);
 		ath_dbg(common, RESET, "FATAL: Skipping interrupts\n");
 		goto out;
 	}
@@ -403,11 +402,6 @@ void ath9k_tasklet(unsigned long data)
 			type = RESET_TYPE_BB_WATCHDOG;
 			ath9k_queue_reset(sc, type);
 
-			/*
-			 * Increment the ref. counter here so that
-			 * interrupts are enabled in the reset routine.
-			 */
-			atomic_inc(&ah->intr_ref_cnt);
 			ath_dbg(common, RESET,
 				"BB_WATCHDOG: Skipping interrupts\n");
 			goto out;
@@ -420,7 +414,6 @@ void ath9k_tasklet(unsigned long data)
 		if ((sc->gtt_cnt >= MAX_GTT_CNT) && !ath9k_hw_check_alive(ah)) {
 			type = RESET_TYPE_TX_GTT;
 			ath9k_queue_reset(sc, type);
-			atomic_inc(&ah->intr_ref_cnt);
 			ath_dbg(common, RESET,
 				"GTT: Skipping interrupts\n");
 			goto out;
@@ -477,7 +470,7 @@ void ath9k_tasklet(unsigned long data)
 	ath9k_btcoex_handle_interrupt(sc, status);
 
 	/* re-enable hardware interrupt */
-	ath9k_hw_enable_interrupts(ah);
+	ath9k_hw_resume_interrupts(ah);
 out:
 	spin_unlock(&sc->sc_pcu_lock);
 	ath9k_ps_restore(sc);
@@ -541,7 +534,9 @@ irqreturn_t ath_isr(int irq, void *dev)
 		return IRQ_NONE;
 
 	/* Cache the status */
-	sc->intrstatus = status;
+	spin_lock(&sc->intr_lock);
+	sc->intrstatus |= status;
+	spin_unlock(&sc->intr_lock);
 
 	if (status & SCHED_INTR)
 		sched = true;
@@ -587,7 +582,7 @@ chip_reset:
 
 	if (sched) {
 		/* turn off every interrupt */
-		ath9k_hw_disable_interrupts(ah);
+		ath9k_hw_kill_interrupts(ah);
 		tasklet_schedule(&sc->intr_tq);
 	}
 
@@ -1550,13 +1545,13 @@ static int ath9k_sta_state(struct ieee80
 	struct ath_common *common = ath9k_hw_common(sc->sc_ah);
 	int ret = 0;
 
-	if (old_state == IEEE80211_STA_AUTH &&
-	    new_state == IEEE80211_STA_ASSOC) {
+	if (old_state == IEEE80211_STA_NOTEXIST &&
+	    new_state == IEEE80211_STA_NONE) {
 		ret = ath9k_sta_add(hw, vif, sta);
 		ath_dbg(common, CONFIG,
 			"Add station: %pM\n", sta->addr);
-	} else if (old_state == IEEE80211_STA_ASSOC &&
-		   new_state == IEEE80211_STA_AUTH) {
+	} else if (old_state == IEEE80211_STA_NONE &&
+		   new_state == IEEE80211_STA_NOTEXIST) {
 		ret = ath9k_sta_remove(hw, vif, sta);
 		ath_dbg(common, CONFIG,
 			"Remove station: %pM\n", sta->addr);
@@ -1860,14 +1855,16 @@ static void ath9k_reset_tsf(struct ieee8
 
 static int ath9k_ampdu_action(struct ieee80211_hw *hw,
 			      struct ieee80211_vif *vif,
-			      enum ieee80211_ampdu_mlme_action action,
-			      struct ieee80211_sta *sta,
-			      u16 tid, u16 *ssn, u8 buf_size, bool amsdu)
+			      struct ieee80211_ampdu_params *params)
 {
 	struct ath_softc *sc = hw->priv;
 	struct ath_common *common = ath9k_hw_common(sc->sc_ah);
 	bool flush = false;
 	int ret = 0;
+	struct ieee80211_sta *sta = params->sta;
+	enum ieee80211_ampdu_mlme_action action = params->action;
+	u16 tid = params->tid;
+	u16 *ssn = &params->ssn;
 
 	mutex_lock(&sc->mutex);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/ath/ath9k/pci.c linux-libre-4.4.107-gnu/drivers/net/wireless/ath/ath9k/pci.c
--- linux-libre-4.4-gnu/drivers/net/wireless/ath/ath9k/pci.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/ath/ath9k/pci.c	2017-12-20 04:05:01.000000000 -0500
@@ -27,8 +27,17 @@ static const struct pci_device_id ath_pc
 	{ PCI_VDEVICE(ATHEROS, 0x0023) }, /* PCI   */
 	{ PCI_VDEVICE(ATHEROS, 0x0024) }, /* PCI-E */
 	{ PCI_VDEVICE(ATHEROS, 0x0027) }, /* PCI   */
+
+#ifdef CONFIG_ATH9K_PCOEM
+	/* Mini PCI AR9220 MB92 cards: Compex WLM200NX, Wistron DNMA-92 */
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
+			 0x0029,
+			 PCI_VENDOR_ID_ATHEROS,
+			 0x2096),
+	  .driver_data = ATH9K_PCI_LED_ACT_HI },
+#endif
+
 	{ PCI_VDEVICE(ATHEROS, 0x0029) }, /* PCI   */
-	{ PCI_VDEVICE(ATHEROS, 0x002A) }, /* PCI-E */
 
 #ifdef CONFIG_ATH9K_PCOEM
 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
@@ -76,7 +85,11 @@ static const struct pci_device_id ath_pc
 			 0x10CF, /* Fujitsu */
 			 0x1536),
 	  .driver_data = ATH9K_PCI_D3_L1_WAR },
+#endif
 
+	{ PCI_VDEVICE(ATHEROS, 0x002A) }, /* PCI-E */
+
+#ifdef CONFIG_ATH9K_PCOEM
 	/* AR9285 card for Asus */
 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 			 0x002B,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/ath/ath9k/tx99.c linux-libre-4.4.107-gnu/drivers/net/wireless/ath/ath9k/tx99.c
--- linux-libre-4.4-gnu/drivers/net/wireless/ath/ath9k/tx99.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/ath/ath9k/tx99.c	2017-12-20 04:05:01.000000000 -0500
@@ -180,6 +180,9 @@ static ssize_t write_file_tx99(struct fi
 	ssize_t len;
 	int r;
 
+	if (count < 1)
+		return -EINVAL;
+
 	if (sc->cur_chan->nvifs > 1)
 		return -EOPNOTSUPP;
 
@@ -187,25 +190,32 @@ static ssize_t write_file_tx99(struct fi
 	if (copy_from_user(buf, user_buf, len))
 		return -EFAULT;
 
+	buf[len] = '\0';
+
 	if (strtobool(buf, &start))
 		return -EINVAL;
 
+	mutex_lock(&sc->mutex);
+
 	if (start == sc->tx99_state) {
 		if (!start)
-			return count;
+			goto out;
 		ath_dbg(common, XMIT, "Resetting TX99\n");
 		ath9k_tx99_deinit(sc);
 	}
 
 	if (!start) {
 		ath9k_tx99_deinit(sc);
-		return count;
+		goto out;
 	}
 
 	r = ath9k_tx99_init(sc);
-	if (r)
+	if (r) {
+		mutex_unlock(&sc->mutex);
 		return r;
-
+	}
+out:
+	mutex_unlock(&sc->mutex);
 	return count;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/ath/carl9170/main.c linux-libre-4.4.107-gnu/drivers/net/wireless/ath/carl9170/main.c
--- linux-libre-4.4-gnu/drivers/net/wireless/ath/carl9170/main.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/ath/carl9170/main.c	2017-12-20 04:05:01.000000000 -0500
@@ -1413,10 +1413,12 @@ static void carl9170_ampdu_work(struct w
 
 static int carl9170_op_ampdu_action(struct ieee80211_hw *hw,
 				    struct ieee80211_vif *vif,
-				    enum ieee80211_ampdu_mlme_action action,
-				    struct ieee80211_sta *sta,
-				    u16 tid, u16 *ssn, u8 buf_size, bool amsdu)
+				    struct ieee80211_ampdu_params *params)
 {
+	struct ieee80211_sta *sta = params->sta;
+	enum ieee80211_ampdu_mlme_action action = params->action;
+	u16 tid = params->tid;
+	u16 *ssn = &params->ssn;
 	struct ar9170 *ar = hw->priv;
 	struct carl9170_sta_info *sta_info = (void *) sta->drv_priv;
 	struct carl9170_sta_tid *tid_info;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/ath/wcn36xx/main.c linux-libre-4.4.107-gnu/drivers/net/wireless/ath/wcn36xx/main.c
--- linux-libre-4.4-gnu/drivers/net/wireless/ath/wcn36xx/main.c	2016-01-10 21:11:39.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/ath/wcn36xx/main.c	2017-12-20 11:38:20.000000000 -0500
@@ -857,12 +857,14 @@ static int wcn36xx_resume(struct ieee802
 
 static int wcn36xx_ampdu_action(struct ieee80211_hw *hw,
 		    struct ieee80211_vif *vif,
-		    enum ieee80211_ampdu_mlme_action action,
-		    struct ieee80211_sta *sta, u16 tid, u16 *ssn,
-		    u8 buf_size, bool amsdu)
+		    struct ieee80211_ampdu_params *params)
 {
 	struct wcn36xx *wcn = hw->priv;
 	struct wcn36xx_sta *sta_priv = NULL;
+	struct ieee80211_sta *sta = params->sta;
+	enum ieee80211_ampdu_mlme_action action = params->action;
+	u16 tid = params->tid;
+	u16 *ssn = &params->ssn;
 
 	wcn36xx_dbg(WCN36XX_DBG_MAC, "mac ampdu action action %d tid %d\n",
 		    action, tid);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/ath/wil6210/main.c linux-libre-4.4.107-gnu/drivers/net/wireless/ath/wil6210/main.c
--- linux-libre-4.4-gnu/drivers/net/wireless/ath/wil6210/main.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/ath/wil6210/main.c	2017-12-20 04:05:01.000000000 -0500
@@ -330,18 +330,19 @@ static void wil_fw_error_worker(struct w
 
 	wil->last_fw_recovery = jiffies;
 
+	wil_info(wil, "fw error recovery requested (try %d)...\n",
+		 wil->recovery_count);
+	if (!no_fw_recovery)
+		wil->recovery_state = fw_recovery_running;
+	if (wil_wait_for_recovery(wil) != 0)
+		return;
+
 	mutex_lock(&wil->mutex);
 	switch (wdev->iftype) {
 	case NL80211_IFTYPE_STATION:
 	case NL80211_IFTYPE_P2P_CLIENT:
 	case NL80211_IFTYPE_MONITOR:
-		wil_info(wil, "fw error recovery requested (try %d)...\n",
-			 wil->recovery_count);
-		if (!no_fw_recovery)
-			wil->recovery_state = fw_recovery_running;
-		if (0 != wil_wait_for_recovery(wil))
-			break;
-
+		/* silent recovery, upper layers will see disconnect */
 		__wil_down(wil);
 		__wil_up(wil);
 		break;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c linux-libre-4.4.107-gnu/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
--- linux-libre-4.4-gnu/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c	2017-12-20 04:05:01.000000000 -0500
@@ -726,8 +726,10 @@ int brcmf_sdiod_recv_chain(struct brcmf_
 			return -ENOMEM;
 		err = brcmf_sdiod_buffrw(sdiodev, SDIO_FUNC_2, false, addr,
 					 glom_skb);
-		if (err)
+		if (err) {
+			brcmu_pkt_buf_free_skb(glom_skb);
 			goto done;
+		}
 
 		skb_queue_walk(pktq, skb) {
 			memcpy(skb->data, glom_skb->data, skb->len);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/brcm80211/brcmfmac/cfg80211.c linux-libre-4.4.107-gnu/drivers/net/wireless/brcm80211/brcmfmac/cfg80211.c
--- linux-libre-4.4-gnu/drivers/net/wireless/brcm80211/brcmfmac/cfg80211.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/brcm80211/brcmfmac/cfg80211.c	2017-12-20 04:05:01.000000000 -0500
@@ -876,7 +876,7 @@ static void brcmf_escan_prep(struct brcm
 
 	eth_broadcast_addr(params_le->bssid);
 	params_le->bss_type = DOT11_BSSTYPE_ANY;
-	params_le->scan_type = 0;
+	params_le->scan_type = BRCMF_SCANTYPE_ACTIVE;
 	params_le->channel_num = 0;
 	params_le->nprobes = cpu_to_le32(-1);
 	params_le->active_time = cpu_to_le32(-1);
@@ -884,12 +884,9 @@ static void brcmf_escan_prep(struct brcm
 	params_le->home_time = cpu_to_le32(-1);
 	memset(&params_le->ssid_le, 0, sizeof(params_le->ssid_le));
 
-	/* if request is null exit so it will be all channel broadcast scan */
-	if (!request)
-		return;
-
 	n_ssids = request->n_ssids;
 	n_channels = request->n_channels;
+
 	/* Copy channel array if applicable */
 	brcmf_dbg(SCAN, "### List of channelspecs to scan ### %d\n",
 		  n_channels);
@@ -926,16 +923,8 @@ static void brcmf_escan_prep(struct brcm
 			ptr += sizeof(ssid_le);
 		}
 	} else {
-		brcmf_dbg(SCAN, "Broadcast scan %p\n", request->ssids);
-		if ((request->ssids) && request->ssids->ssid_len) {
-			brcmf_dbg(SCAN, "SSID %s len=%d\n",
-				  params_le->ssid_le.SSID,
-				  request->ssids->ssid_len);
-			params_le->ssid_le.SSID_len =
-				cpu_to_le32(request->ssids->ssid_len);
-			memcpy(&params_le->ssid_le.SSID, request->ssids->ssid,
-				request->ssids->ssid_len);
-		}
+		brcmf_dbg(SCAN, "Performing passive scan\n");
+		params_le->scan_type = BRCMF_SCANTYPE_PASSIVE;
 	}
 	/* Adding mask to channel numbers */
 	params_le->channel_num =
@@ -2408,7 +2397,7 @@ static void brcmf_fill_bss_param(struct
 				     WL_BSS_INFO_MAX);
 	if (err) {
 		brcmf_err("Failed to get bss info (%d)\n", err);
-		return;
+		goto out_kfree;
 	}
 	si->filled |= BIT(NL80211_STA_INFO_BSS_PARAM);
 	si->bss_param.beacon_interval = le16_to_cpu(buf->bss_le.beacon_period);
@@ -2420,6 +2409,9 @@ static void brcmf_fill_bss_param(struct
 		si->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_PREAMBLE;
 	if (capability & WLAN_CAPABILITY_SHORT_SLOT_TIME)
 		si->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
+
+out_kfree:
+	kfree(buf);
 }
 
 static s32
@@ -2911,6 +2903,7 @@ brcmf_cfg80211_escan_handler(struct brcm
 	struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
 	s32 status;
 	struct brcmf_escan_result_le *escan_result_le;
+	u32 escan_buflen;
 	struct brcmf_bss_info_le *bss_info_le;
 	struct brcmf_bss_info_le *bss = NULL;
 	u32 bi_length;
@@ -2927,11 +2920,23 @@ brcmf_cfg80211_escan_handler(struct brcm
 
 	if (status == BRCMF_E_STATUS_PARTIAL) {
 		brcmf_dbg(SCAN, "ESCAN Partial result\n");
+		if (e->datalen < sizeof(*escan_result_le)) {
+			brcmf_err("invalid event data length\n");
+			goto exit;
+		}
 		escan_result_le = (struct brcmf_escan_result_le *) data;
 		if (!escan_result_le) {
 			brcmf_err("Invalid escan result (NULL pointer)\n");
 			goto exit;
 		}
+		escan_buflen = le32_to_cpu(escan_result_le->buflen);
+		if (escan_buflen > WL_ESCAN_BUF_SIZE ||
+		    escan_buflen > e->datalen ||
+		    escan_buflen < sizeof(*escan_result_le)) {
+			brcmf_err("Invalid escan buffer length: %d\n",
+				  escan_buflen);
+			goto exit;
+		}
 		if (le16_to_cpu(escan_result_le->bss_count) != 1) {
 			brcmf_err("Invalid bss_count %d: ignoring\n",
 				  escan_result_le->bss_count);
@@ -2948,9 +2953,8 @@ brcmf_cfg80211_escan_handler(struct brcm
 		}
 
 		bi_length = le32_to_cpu(bss_info_le->length);
-		if (bi_length != (le32_to_cpu(escan_result_le->buflen) -
-					WL_ESCAN_RESULTS_FIXED_SIZE)) {
-			brcmf_err("Invalid bss_info length %d: ignoring\n",
+		if (bi_length != escan_buflen -	WL_ESCAN_RESULTS_FIXED_SIZE) {
+			brcmf_err("Ignoring invalid bss_info length: %d\n",
 				  bi_length);
 			goto exit;
 		}
@@ -4099,7 +4103,7 @@ brcmf_cfg80211_start_ap(struct wiphy *wi
 				(u8 *)&settings->beacon.head[ie_offset],
 				settings->beacon.head_len - ie_offset,
 				WLAN_EID_SSID);
-		if (!ssid_ie)
+		if (!ssid_ie || ssid_ie->len > IEEE80211_MAX_SSID_LEN)
 			return -EINVAL;
 
 		memcpy(ssid_le.SSID, ssid_ie->data, ssid_ie->len);
@@ -4291,9 +4295,6 @@ static int brcmf_cfg80211_stop_ap(struct
 		err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_AP, 0);
 		if (err < 0)
 			brcmf_err("setting AP mode failed %d\n", err);
-		err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_INFRA, 0);
-		if (err < 0)
-			brcmf_err("setting INFRA mode failed %d\n", err);
 		if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MBSS))
 			brcmf_fil_iovar_int_set(ifp, "mbss", 0);
 		err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_REGULATORY,
@@ -4469,6 +4470,11 @@ brcmf_cfg80211_mgmt_tx(struct wiphy *wip
 		cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, true,
 					GFP_KERNEL);
 	} else if (ieee80211_is_action(mgmt->frame_control)) {
+		if (len > BRCMF_FIL_ACTION_FRAME_SIZE + DOT11_MGMT_HDR_LEN) {
+			brcmf_err("invalid action frame length\n");
+			err = -EINVAL;
+			goto exit;
+		}
 		af_params = kzalloc(sizeof(*af_params), GFP_KERNEL);
 		if (af_params == NULL) {
 			brcmf_err("unable to allocate frame\n");
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/brcm80211/brcmfmac/core.c linux-libre-4.4.107-gnu/drivers/net/wireless/brcm80211/brcmfmac/core.c
--- linux-libre-4.4-gnu/drivers/net/wireless/brcm80211/brcmfmac/core.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/brcm80211/brcmfmac/core.c	2017-12-20 04:05:01.000000000 -0500
@@ -211,7 +211,7 @@ static netdev_tx_t brcmf_netdev_start_xm
 	int ret;
 	struct brcmf_if *ifp = netdev_priv(ndev);
 	struct brcmf_pub *drvr = ifp->drvr;
-	struct ethhdr *eh = (struct ethhdr *)(skb->data);
+	struct ethhdr *eh;
 
 	brcmf_dbg(DATA, "Enter, idx=%d\n", ifp->bssidx);
 
@@ -232,22 +232,13 @@ static netdev_tx_t brcmf_netdev_start_xm
 		goto done;
 	}
 
-	/* Make sure there's enough room for any header */
-	if (skb_headroom(skb) < drvr->hdrlen) {
-		struct sk_buff *skb2;
-
-		brcmf_dbg(INFO, "%s: insufficient headroom\n",
+	/* Make sure there's enough writable headroom*/
+	ret = skb_cow_head(skb, drvr->hdrlen);
+	if (ret < 0) {
+		brcmf_err("%s: skb_cow_head failed\n",
 			  brcmf_ifname(drvr, ifp->bssidx));
-		drvr->bus_if->tx_realloc++;
-		skb2 = skb_realloc_headroom(skb, drvr->hdrlen);
 		dev_kfree_skb(skb);
-		skb = skb2;
-		if (skb == NULL) {
-			brcmf_err("%s: skb_realloc_headroom failed\n",
-				  brcmf_ifname(drvr, ifp->bssidx));
-			ret = -ENOMEM;
-			goto done;
-		}
+		goto done;
 	}
 
 	/* validate length for ether packet */
@@ -257,6 +248,8 @@ static netdev_tx_t brcmf_netdev_start_xm
 		goto done;
 	}
 
+	eh = (struct ethhdr *)(skb->data);
+
 	if (eh->h_proto == htons(ETH_P_PAE))
 		atomic_inc(&ifp->pend_8021x_cnt);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/brcm80211/brcmfmac/fwil_types.h linux-libre-4.4.107-gnu/drivers/net/wireless/brcm80211/brcmfmac/fwil_types.h
--- linux-libre-4.4-gnu/drivers/net/wireless/brcm80211/brcmfmac/fwil_types.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/brcm80211/brcmfmac/fwil_types.h	2017-12-20 04:05:01.000000000 -0500
@@ -45,6 +45,11 @@
 #define BRCMF_SCAN_PARAMS_COUNT_MASK	0x0000ffff
 #define BRCMF_SCAN_PARAMS_NSSID_SHIFT	16
 
+/* scan type definitions */
+#define BRCMF_SCANTYPE_DEFAULT		0xFF
+#define BRCMF_SCANTYPE_ACTIVE		0
+#define BRCMF_SCANTYPE_PASSIVE		1
+
 /* primary (ie tx) key */
 #define BRCMF_PRIMARY_KEY		(1 << 1)
 #define DOT11_BSSTYPE_ANY		2
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/brcm80211/brcmsmac/dma.c linux-libre-4.4.107-gnu/drivers/net/wireless/brcm80211/brcmsmac/dma.c
--- linux-libre-4.4-gnu/drivers/net/wireless/brcm80211/brcmsmac/dma.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/brcm80211/brcmsmac/dma.c	2017-12-20 04:05:01.000000000 -0500
@@ -1079,8 +1079,10 @@ bool dma_rxfill(struct dma_pub *pub)
 
 		pa = dma_map_single(di->dmadev, p->data, di->rxbufsize,
 				    DMA_FROM_DEVICE);
-		if (dma_mapping_error(di->dmadev, pa))
+		if (dma_mapping_error(di->dmadev, pa)) {
+			brcmu_pkt_buf_free_skb(p);
 			return false;
+		}
 
 		/* save the free packet pointer */
 		di->rxp[rxout] = p;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/brcm80211/brcmsmac/mac80211_if.c linux-libre-4.4.107-gnu/drivers/net/wireless/brcm80211/brcmsmac/mac80211_if.c
--- linux-libre-4.4-gnu/drivers/net/wireless/brcm80211/brcmsmac/mac80211_if.c	2016-01-10 21:06:33.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/brcm80211/brcmsmac/mac80211_if.c	2017-12-20 11:29:27.000000000 -0500
@@ -817,13 +817,15 @@ brcms_ops_sta_add(struct ieee80211_hw *h
 static int
 brcms_ops_ampdu_action(struct ieee80211_hw *hw,
 		    struct ieee80211_vif *vif,
-		    enum ieee80211_ampdu_mlme_action action,
-		    struct ieee80211_sta *sta, u16 tid, u16 *ssn,
-		    u8 buf_size, bool amsdu)
+		    struct ieee80211_ampdu_params *params)
 {
 	struct brcms_info *wl = hw->priv;
 	struct scb *scb = &wl->wlc->pri_scb;
 	int status;
+	struct ieee80211_sta *sta = params->sta;
+	enum ieee80211_ampdu_mlme_action action = params->action;
+	u16 tid = params->tid;
+	u8 buf_size = params->buf_size;
 
 	if (WARN_ON(scb->magic != SCB_MAGIC))
 		return -EIDRM;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/brcm80211/brcmsmac/phy/phy_n.c linux-libre-4.4.107-gnu/drivers/net/wireless/brcm80211/brcmsmac/phy/phy_n.c
--- linux-libre-4.4-gnu/drivers/net/wireless/brcm80211/brcmsmac/phy/phy_n.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/brcm80211/brcmsmac/phy/phy_n.c	2017-12-20 04:05:01.000000000 -0500
@@ -14764,8 +14764,8 @@ static void wlc_phy_ipa_restore_tx_digi_
 }
 
 static void
-wlc_phy_set_rfseq_nphy(struct brcms_phy *pi, u8 cmd, u8 *events, u8 *dlys,
-		       u8 len)
+wlc_phy_set_rfseq_nphy(struct brcms_phy *pi, u8 cmd, const u8 *events,
+		       const u8 *dlys, u8 len)
 {
 	u32 t1_offset, t2_offset;
 	u8 ctr;
@@ -15240,16 +15240,16 @@ static void wlc_phy_workarounds_nphy_gai
 static void wlc_phy_workarounds_nphy_gainctrl_2057_rev6(struct brcms_phy *pi)
 {
 	u16 currband;
-	s8 lna1G_gain_db_rev7[] = { 9, 14, 19, 24 };
-	s8 *lna1_gain_db = NULL;
-	s8 *lna1_gain_db_2 = NULL;
-	s8 *lna2_gain_db = NULL;
-	s8 tiaA_gain_db_rev7[] = { -9, -6, -3, 0, 3, 3, 3, 3, 3, 3 };
-	s8 *tia_gain_db;
-	s8 tiaA_gainbits_rev7[] = { 0, 1, 2, 3, 4, 4, 4, 4, 4, 4 };
-	s8 *tia_gainbits;
-	u16 rfseqA_init_gain_rev7[] = { 0x624f, 0x624f };
-	u16 *rfseq_init_gain;
+	static const s8 lna1G_gain_db_rev7[] = { 9, 14, 19, 24 };
+	const s8 *lna1_gain_db = NULL;
+	const s8 *lna1_gain_db_2 = NULL;
+	const s8 *lna2_gain_db = NULL;
+	static const s8 tiaA_gain_db_rev7[] = { -9, -6, -3, 0, 3, 3, 3, 3, 3, 3 };
+	const s8 *tia_gain_db;
+	static const s8 tiaA_gainbits_rev7[] = { 0, 1, 2, 3, 4, 4, 4, 4, 4, 4 };
+	const s8 *tia_gainbits;
+	static const u16 rfseqA_init_gain_rev7[] = { 0x624f, 0x624f };
+	const u16 *rfseq_init_gain;
 	u16 init_gaincode;
 	u16 clip1hi_gaincode;
 	u16 clip1md_gaincode = 0;
@@ -15310,10 +15310,9 @@ static void wlc_phy_workarounds_nphy_gai
 
 			if ((freq <= 5080) || (freq == 5825)) {
 
-				s8 lna1A_gain_db_rev7[] = { 11, 16, 20, 24 };
-				s8 lna1A_gain_db_2_rev7[] = {
-					11, 17, 22, 25};
-				s8 lna2A_gain_db_rev7[] = { -1, 6, 10, 14 };
+				static const s8 lna1A_gain_db_rev7[] = { 11, 16, 20, 24 };
+				static const s8 lna1A_gain_db_2_rev7[] = { 11, 17, 22, 25};
+				static const s8 lna2A_gain_db_rev7[] = { -1, 6, 10, 14 };
 
 				crsminu_th = 0x3e;
 				lna1_gain_db = lna1A_gain_db_rev7;
@@ -15321,10 +15320,9 @@ static void wlc_phy_workarounds_nphy_gai
 				lna2_gain_db = lna2A_gain_db_rev7;
 			} else if ((freq >= 5500) && (freq <= 5700)) {
 
-				s8 lna1A_gain_db_rev7[] = { 11, 17, 21, 25 };
-				s8 lna1A_gain_db_2_rev7[] = {
-					12, 18, 22, 26};
-				s8 lna2A_gain_db_rev7[] = { 1, 8, 12, 16 };
+				static const s8 lna1A_gain_db_rev7[] = { 11, 17, 21, 25 };
+				static const s8 lna1A_gain_db_2_rev7[] = { 12, 18, 22, 26};
+				static const s8 lna2A_gain_db_rev7[] = { 1, 8, 12, 16 };
 
 				crsminu_th = 0x45;
 				clip1md_gaincode_B = 0x14;
@@ -15335,10 +15333,9 @@ static void wlc_phy_workarounds_nphy_gai
 				lna2_gain_db = lna2A_gain_db_rev7;
 			} else {
 
-				s8 lna1A_gain_db_rev7[] = { 12, 18, 22, 26 };
-				s8 lna1A_gain_db_2_rev7[] = {
-					12, 18, 22, 26};
-				s8 lna2A_gain_db_rev7[] = { -1, 6, 10, 14 };
+				static const s8 lna1A_gain_db_rev7[] = { 12, 18, 22, 26 };
+				static const s8 lna1A_gain_db_2_rev7[] = { 12, 18, 22, 26};
+				static const s8 lna2A_gain_db_rev7[] = { -1, 6, 10, 14 };
 
 				crsminu_th = 0x41;
 				lna1_gain_db = lna1A_gain_db_rev7;
@@ -15450,65 +15447,65 @@ static void wlc_phy_workarounds_nphy_gai
 		NPHY_RFSEQ_CMD_CLR_HIQ_DIS,
 		NPHY_RFSEQ_CMD_SET_HPF_BW
 	};
-	u8 rfseq_updategainu_dlys[] = { 10, 30, 1 };
-	s8 lna1G_gain_db[] = { 7, 11, 16, 23 };
-	s8 lna1G_gain_db_rev4[] = { 8, 12, 17, 25 };
-	s8 lna1G_gain_db_rev5[] = { 9, 13, 18, 26 };
-	s8 lna1G_gain_db_rev6[] = { 8, 13, 18, 25 };
-	s8 lna1G_gain_db_rev6_224B0[] = { 10, 14, 19, 27 };
-	s8 lna1A_gain_db[] = { 7, 11, 17, 23 };
-	s8 lna1A_gain_db_rev4[] = { 8, 12, 18, 23 };
-	s8 lna1A_gain_db_rev5[] = { 6, 10, 16, 21 };
-	s8 lna1A_gain_db_rev6[] = { 6, 10, 16, 21 };
-	s8 *lna1_gain_db = NULL;
-	s8 lna2G_gain_db[] = { -5, 6, 10, 14 };
-	s8 lna2G_gain_db_rev5[] = { -3, 7, 11, 16 };
-	s8 lna2G_gain_db_rev6[] = { -5, 6, 10, 14 };
-	s8 lna2G_gain_db_rev6_224B0[] = { -5, 6, 10, 15 };
-	s8 lna2A_gain_db[] = { -6, 2, 6, 10 };
-	s8 lna2A_gain_db_rev4[] = { -5, 2, 6, 10 };
-	s8 lna2A_gain_db_rev5[] = { -7, 0, 4, 8 };
-	s8 lna2A_gain_db_rev6[] = { -7, 0, 4, 8 };
-	s8 *lna2_gain_db = NULL;
-	s8 tiaG_gain_db[] = {
+	static const u8 rfseq_updategainu_dlys[] = { 10, 30, 1 };
+	static const s8 lna1G_gain_db[] = { 7, 11, 16, 23 };
+	static const s8 lna1G_gain_db_rev4[] = { 8, 12, 17, 25 };
+	static const s8 lna1G_gain_db_rev5[] = { 9, 13, 18, 26 };
+	static const s8 lna1G_gain_db_rev6[] = { 8, 13, 18, 25 };
+	static const s8 lna1G_gain_db_rev6_224B0[] = { 10, 14, 19, 27 };
+	static const s8 lna1A_gain_db[] = { 7, 11, 17, 23 };
+	static const s8 lna1A_gain_db_rev4[] = { 8, 12, 18, 23 };
+	static const s8 lna1A_gain_db_rev5[] = { 6, 10, 16, 21 };
+	static const s8 lna1A_gain_db_rev6[] = { 6, 10, 16, 21 };
+	const s8 *lna1_gain_db = NULL;
+	static const s8 lna2G_gain_db[] = { -5, 6, 10, 14 };
+	static const s8 lna2G_gain_db_rev5[] = { -3, 7, 11, 16 };
+	static const s8 lna2G_gain_db_rev6[] = { -5, 6, 10, 14 };
+	static const s8 lna2G_gain_db_rev6_224B0[] = { -5, 6, 10, 15 };
+	static const s8 lna2A_gain_db[] = { -6, 2, 6, 10 };
+	static const s8 lna2A_gain_db_rev4[] = { -5, 2, 6, 10 };
+	static const s8 lna2A_gain_db_rev5[] = { -7, 0, 4, 8 };
+	static const s8 lna2A_gain_db_rev6[] = { -7, 0, 4, 8 };
+	const s8 *lna2_gain_db = NULL;
+	static const s8 tiaG_gain_db[] = {
 		0x0A, 0x0A, 0x0A, 0x0A, 0x0A, 0x0A, 0x0A, 0x0A, 0x0A, 0x0A };
-	s8 tiaA_gain_db[] = {
+	static const s8 tiaA_gain_db[] = {
 		0x13, 0x13, 0x13, 0x13, 0x13, 0x13, 0x13, 0x13, 0x13, 0x13 };
-	s8 tiaA_gain_db_rev4[] = {
+	static const s8 tiaA_gain_db_rev4[] = {
 		0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d };
-	s8 tiaA_gain_db_rev5[] = {
+	static const s8 tiaA_gain_db_rev5[] = {
 		0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d };
-	s8 tiaA_gain_db_rev6[] = {
+	static const s8 tiaA_gain_db_rev6[] = {
 		0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d };
-	s8 *tia_gain_db;
-	s8 tiaG_gainbits[] = {
+	const s8 *tia_gain_db;
+	static const s8 tiaG_gainbits[] = {
 		0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03 };
-	s8 tiaA_gainbits[] = {
+	static const s8 tiaA_gainbits[] = {
 		0x06, 0x06, 0x06, 0x06, 0x06, 0x06, 0x06, 0x06, 0x06, 0x06 };
-	s8 tiaA_gainbits_rev4[] = {
+	static const s8 tiaA_gainbits_rev4[] = {
 		0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04 };
-	s8 tiaA_gainbits_rev5[] = {
+	static const s8 tiaA_gainbits_rev5[] = {
 		0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04 };
-	s8 tiaA_gainbits_rev6[] = {
+	static const s8 tiaA_gainbits_rev6[] = {
 		0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04 };
-	s8 *tia_gainbits;
-	s8 lpf_gain_db[] = { 0x00, 0x06, 0x0c, 0x12, 0x12, 0x12 };
-	s8 lpf_gainbits[] = { 0x00, 0x01, 0x02, 0x03, 0x03, 0x03 };
-	u16 rfseqG_init_gain[] = { 0x613f, 0x613f, 0x613f, 0x613f };
-	u16 rfseqG_init_gain_rev4[] = { 0x513f, 0x513f, 0x513f, 0x513f };
-	u16 rfseqG_init_gain_rev5[] = { 0x413f, 0x413f, 0x413f, 0x413f };
-	u16 rfseqG_init_gain_rev5_elna[] = {
+	const s8 *tia_gainbits;
+	static const s8 lpf_gain_db[] = { 0x00, 0x06, 0x0c, 0x12, 0x12, 0x12 };
+	static const s8 lpf_gainbits[] = { 0x00, 0x01, 0x02, 0x03, 0x03, 0x03 };
+	static const u16 rfseqG_init_gain[] = { 0x613f, 0x613f, 0x613f, 0x613f };
+	static const u16 rfseqG_init_gain_rev4[] = { 0x513f, 0x513f, 0x513f, 0x513f };
+	static const u16 rfseqG_init_gain_rev5[] = { 0x413f, 0x413f, 0x413f, 0x413f };
+	static const u16 rfseqG_init_gain_rev5_elna[] = {
 		0x013f, 0x013f, 0x013f, 0x013f };
-	u16 rfseqG_init_gain_rev6[] = { 0x513f, 0x513f };
-	u16 rfseqG_init_gain_rev6_224B0[] = { 0x413f, 0x413f };
-	u16 rfseqG_init_gain_rev6_elna[] = { 0x113f, 0x113f };
-	u16 rfseqA_init_gain[] = { 0x516f, 0x516f, 0x516f, 0x516f };
-	u16 rfseqA_init_gain_rev4[] = { 0x614f, 0x614f, 0x614f, 0x614f };
-	u16 rfseqA_init_gain_rev4_elna[] = {
+	static const u16 rfseqG_init_gain_rev6[] = { 0x513f, 0x513f };
+	static const u16 rfseqG_init_gain_rev6_224B0[] = { 0x413f, 0x413f };
+	static const u16 rfseqG_init_gain_rev6_elna[] = { 0x113f, 0x113f };
+	static const u16 rfseqA_init_gain[] = { 0x516f, 0x516f, 0x516f, 0x516f };
+	static const u16 rfseqA_init_gain_rev4[] = { 0x614f, 0x614f, 0x614f, 0x614f };
+	static const u16 rfseqA_init_gain_rev4_elna[] = {
 		0x314f, 0x314f, 0x314f, 0x314f };
-	u16 rfseqA_init_gain_rev5[] = { 0x714f, 0x714f, 0x714f, 0x714f };
-	u16 rfseqA_init_gain_rev6[] = { 0x714f, 0x714f };
-	u16 *rfseq_init_gain;
+	static const u16 rfseqA_init_gain_rev5[] = { 0x714f, 0x714f, 0x714f, 0x714f };
+	static const u16 rfseqA_init_gain_rev6[] = { 0x714f, 0x714f };
+	const u16 *rfseq_init_gain;
 	u16 initG_gaincode = 0x627e;
 	u16 initG_gaincode_rev4 = 0x527e;
 	u16 initG_gaincode_rev5 = 0x427e;
@@ -15538,10 +15535,10 @@ static void wlc_phy_workarounds_nphy_gai
 	u16 clip1mdA_gaincode_rev6 = 0x2084;
 	u16 clip1md_gaincode = 0;
 	u16 clip1loG_gaincode = 0x0074;
-	u16 clip1loG_gaincode_rev5[] = {
+	static const u16 clip1loG_gaincode_rev5[] = {
 		0x0062, 0x0064, 0x006a, 0x106a, 0x106c, 0x1074, 0x107c, 0x207c
 	};
-	u16 clip1loG_gaincode_rev6[] = {
+	static const u16 clip1loG_gaincode_rev6[] = {
 		0x106a, 0x106c, 0x1074, 0x107c, 0x007e, 0x107e, 0x207e, 0x307e
 	};
 	u16 clip1loG_gaincode_rev6_224B0 = 0x1074;
@@ -16066,7 +16063,7 @@ static void wlc_phy_workarounds_nphy_gai
 
 static void wlc_phy_workarounds_nphy(struct brcms_phy *pi)
 {
-	u8 rfseq_rx2tx_events[] = {
+	static const u8 rfseq_rx2tx_events[] = {
 		NPHY_RFSEQ_CMD_NOP,
 		NPHY_RFSEQ_CMD_RXG_FBW,
 		NPHY_RFSEQ_CMD_TR_SWITCH,
@@ -16076,7 +16073,7 @@ static void wlc_phy_workarounds_nphy(str
 		NPHY_RFSEQ_CMD_EXT_PA
 	};
 	u8 rfseq_rx2tx_dlys[] = { 8, 6, 6, 2, 4, 60, 1 };
-	u8 rfseq_tx2rx_events[] = {
+	static const u8 rfseq_tx2rx_events[] = {
 		NPHY_RFSEQ_CMD_NOP,
 		NPHY_RFSEQ_CMD_EXT_PA,
 		NPHY_RFSEQ_CMD_TX_GAIN,
@@ -16085,8 +16082,8 @@ static void wlc_phy_workarounds_nphy(str
 		NPHY_RFSEQ_CMD_RXG_FBW,
 		NPHY_RFSEQ_CMD_CLR_HIQ_DIS
 	};
-	u8 rfseq_tx2rx_dlys[] = { 8, 6, 2, 4, 4, 6, 1 };
-	u8 rfseq_tx2rx_events_rev3[] = {
+	static const u8 rfseq_tx2rx_dlys[] = { 8, 6, 2, 4, 4, 6, 1 };
+	static const u8 rfseq_tx2rx_events_rev3[] = {
 		NPHY_REV3_RFSEQ_CMD_EXT_PA,
 		NPHY_REV3_RFSEQ_CMD_INT_PA_PU,
 		NPHY_REV3_RFSEQ_CMD_TX_GAIN,
@@ -16096,7 +16093,7 @@ static void wlc_phy_workarounds_nphy(str
 		NPHY_REV3_RFSEQ_CMD_CLR_HIQ_DIS,
 		NPHY_REV3_RFSEQ_CMD_END
 	};
-	u8 rfseq_tx2rx_dlys_rev3[] = { 8, 4, 2, 2, 4, 4, 6, 1 };
+	static const u8 rfseq_tx2rx_dlys_rev3[] = { 8, 4, 2, 2, 4, 4, 6, 1 };
 	u8 rfseq_rx2tx_events_rev3[] = {
 		NPHY_REV3_RFSEQ_CMD_NOP,
 		NPHY_REV3_RFSEQ_CMD_RXG_FBW,
@@ -16110,7 +16107,7 @@ static void wlc_phy_workarounds_nphy(str
 	};
 	u8 rfseq_rx2tx_dlys_rev3[] = { 8, 6, 6, 4, 4, 18, 42, 1, 1 };
 
-	u8 rfseq_rx2tx_events_rev3_ipa[] = {
+	static const u8 rfseq_rx2tx_events_rev3_ipa[] = {
 		NPHY_REV3_RFSEQ_CMD_NOP,
 		NPHY_REV3_RFSEQ_CMD_RXG_FBW,
 		NPHY_REV3_RFSEQ_CMD_TR_SWITCH,
@@ -16121,15 +16118,15 @@ static void wlc_phy_workarounds_nphy(str
 		NPHY_REV3_RFSEQ_CMD_INT_PA_PU,
 		NPHY_REV3_RFSEQ_CMD_END
 	};
-	u8 rfseq_rx2tx_dlys_rev3_ipa[] = { 8, 6, 6, 4, 4, 16, 43, 1, 1 };
-	u16 rfseq_rx2tx_dacbufpu_rev7[] = { 0x10f, 0x10f };
+	static const u8 rfseq_rx2tx_dlys_rev3_ipa[] = { 8, 6, 6, 4, 4, 16, 43, 1, 1 };
+	static const u16 rfseq_rx2tx_dacbufpu_rev7[] = { 0x10f, 0x10f };
 
 	s16 alpha0, alpha1, alpha2;
 	s16 beta0, beta1, beta2;
 	u32 leg_data_weights, ht_data_weights, nss1_data_weights,
 	    stbc_data_weights;
 	u8 chan_freq_range = 0;
-	u16 dac_control = 0x0002;
+	static const u16 dac_control = 0x0002;
 	u16 aux_adc_vmid_rev7_core0[] = { 0x8e, 0x96, 0x96, 0x96 };
 	u16 aux_adc_vmid_rev7_core1[] = { 0x8f, 0x9f, 0x9f, 0x96 };
 	u16 aux_adc_vmid_rev4[] = { 0xa2, 0xb4, 0xb4, 0x89 };
@@ -16139,8 +16136,8 @@ static void wlc_phy_workarounds_nphy(str
 	u16 aux_adc_gain_rev4[] = { 0x02, 0x02, 0x02, 0x00 };
 	u16 aux_adc_gain_rev3[] = { 0x02, 0x02, 0x02, 0x00 };
 	u16 *aux_adc_gain;
-	u16 sk_adc_vmid[] = { 0xb4, 0xb4, 0xb4, 0x24 };
-	u16 sk_adc_gain[] = { 0x02, 0x02, 0x02, 0x02 };
+	static const u16 sk_adc_vmid[] = { 0xb4, 0xb4, 0xb4, 0x24 };
+	static const u16 sk_adc_gain[] = { 0x02, 0x02, 0x02, 0x02 };
 	s32 min_nvar_val = 0x18d;
 	s32 min_nvar_offset_6mbps = 20;
 	u8 pdetrange;
@@ -16151,9 +16148,9 @@ static void wlc_phy_workarounds_nphy(str
 	u16 rfseq_rx2tx_lpf_h_hpc_rev7 = 0x77;
 	u16 rfseq_tx2rx_lpf_h_hpc_rev7 = 0x77;
 	u16 rfseq_pktgn_lpf_h_hpc_rev7 = 0x77;
-	u16 rfseq_htpktgn_lpf_hpc_rev7[] = { 0x77, 0x11, 0x11 };
-	u16 rfseq_pktgn_lpf_hpc_rev7[] = { 0x11, 0x11 };
-	u16 rfseq_cckpktgn_lpf_hpc_rev7[] = { 0x11, 0x11 };
+	static const u16 rfseq_htpktgn_lpf_hpc_rev7[] = { 0x77, 0x11, 0x11 };
+	static const u16 rfseq_pktgn_lpf_hpc_rev7[] = { 0x11, 0x11 };
+	static const u16 rfseq_cckpktgn_lpf_hpc_rev7[] = { 0x11, 0x11 };
 	u16 ipalvlshift_3p3_war_en = 0;
 	u16 rccal_bcap_val, rccal_scap_val;
 	u16 rccal_tx20_11b_bcap = 0;
@@ -24291,13 +24288,13 @@ static void wlc_phy_update_txcal_ladder_
 	u16 bbmult;
 	u16 tblentry;
 
-	struct nphy_txiqcal_ladder ladder_lo[] = {
+	static const struct nphy_txiqcal_ladder ladder_lo[] = {
 		{3, 0}, {4, 0}, {6, 0}, {9, 0}, {13, 0}, {18, 0},
 		{25, 0}, {25, 1}, {25, 2}, {25, 3}, {25, 4}, {25, 5},
 		{25, 6}, {25, 7}, {35, 7}, {50, 7}, {71, 7}, {100, 7}
 	};
 
-	struct nphy_txiqcal_ladder ladder_iq[] = {
+	static const struct nphy_txiqcal_ladder ladder_iq[] = {
 		{3, 0}, {4, 0}, {6, 0}, {9, 0}, {13, 0}, {18, 0},
 		{25, 0}, {35, 0}, {50, 0}, {71, 0}, {100, 0}, {100, 1},
 		{100, 2}, {100, 3}, {100, 4}, {100, 5}, {100, 6}, {100, 7}
@@ -25773,67 +25770,67 @@ wlc_phy_cal_txiqlo_nphy(struct brcms_phy
 	u16 cal_gain[2];
 	struct nphy_iqcal_params cal_params[2];
 	u32 tbl_len;
-	void *tbl_ptr;
+	const void *tbl_ptr;
 	bool ladder_updated[2];
 	u8 mphase_cal_lastphase = 0;
 	int bcmerror = 0;
 	bool phyhang_avoid_state = false;
 
-	u16 tbl_tx_iqlo_cal_loft_ladder_20[] = {
+	static const u16 tbl_tx_iqlo_cal_loft_ladder_20[] = {
 		0x0300, 0x0500, 0x0700, 0x0900, 0x0d00, 0x1100, 0x1900, 0x1901,
 		0x1902,
 		0x1903, 0x1904, 0x1905, 0x1906, 0x1907, 0x2407, 0x3207, 0x4607,
 		0x6407
 	};
 
-	u16 tbl_tx_iqlo_cal_iqimb_ladder_20[] = {
+	static const u16 tbl_tx_iqlo_cal_iqimb_ladder_20[] = {
 		0x0200, 0x0300, 0x0600, 0x0900, 0x0d00, 0x1100, 0x1900, 0x2400,
 		0x3200,
 		0x4600, 0x6400, 0x6401, 0x6402, 0x6403, 0x6404, 0x6405, 0x6406,
 		0x6407
 	};
 
-	u16 tbl_tx_iqlo_cal_loft_ladder_40[] = {
+	static const u16 tbl_tx_iqlo_cal_loft_ladder_40[] = {
 		0x0200, 0x0300, 0x0400, 0x0700, 0x0900, 0x0c00, 0x1200, 0x1201,
 		0x1202,
 		0x1203, 0x1204, 0x1205, 0x1206, 0x1207, 0x1907, 0x2307, 0x3207,
 		0x4707
 	};
 
-	u16 tbl_tx_iqlo_cal_iqimb_ladder_40[] = {
+	static const u16 tbl_tx_iqlo_cal_iqimb_ladder_40[] = {
 		0x0100, 0x0200, 0x0400, 0x0700, 0x0900, 0x0c00, 0x1200, 0x1900,
 		0x2300,
 		0x3200, 0x4700, 0x4701, 0x4702, 0x4703, 0x4704, 0x4705, 0x4706,
 		0x4707
 	};
 
-	u16 tbl_tx_iqlo_cal_startcoefs[] = {
+	static const u16 tbl_tx_iqlo_cal_startcoefs[] = {
 		0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
 		0x0000
 	};
 
-	u16 tbl_tx_iqlo_cal_cmds_fullcal[] = {
+	static const u16 tbl_tx_iqlo_cal_cmds_fullcal[] = {
 		0x8123, 0x8264, 0x8086, 0x8245, 0x8056,
 		0x9123, 0x9264, 0x9086, 0x9245, 0x9056
 	};
 
-	u16 tbl_tx_iqlo_cal_cmds_recal[] = {
+	static const u16 tbl_tx_iqlo_cal_cmds_recal[] = {
 		0x8101, 0x8253, 0x8053, 0x8234, 0x8034,
 		0x9101, 0x9253, 0x9053, 0x9234, 0x9034
 	};
 
-	u16 tbl_tx_iqlo_cal_startcoefs_nphyrev3[] = {
+	static const u16 tbl_tx_iqlo_cal_startcoefs_nphyrev3[] = {
 		0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
 		0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
 		0x0000
 	};
 
-	u16 tbl_tx_iqlo_cal_cmds_fullcal_nphyrev3[] = {
+	static const u16 tbl_tx_iqlo_cal_cmds_fullcal_nphyrev3[] = {
 		0x8434, 0x8334, 0x8084, 0x8267, 0x8056, 0x8234,
 		0x9434, 0x9334, 0x9084, 0x9267, 0x9056, 0x9234
 	};
 
-	u16 tbl_tx_iqlo_cal_cmds_recal_nphyrev3[] = {
+	static const u16 tbl_tx_iqlo_cal_cmds_recal_nphyrev3[] = {
 		0x8423, 0x8323, 0x8073, 0x8256, 0x8045, 0x8223,
 		0x9423, 0x9323, 0x9073, 0x9256, 0x9045, 0x9223
 	};
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/brcm80211/brcmsmac/stf.c linux-libre-4.4.107-gnu/drivers/net/wireless/brcm80211/brcmsmac/stf.c
--- linux-libre-4.4-gnu/drivers/net/wireless/brcm80211/brcmsmac/stf.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/brcm80211/brcmsmac/stf.c	2017-12-20 04:05:01.000000000 -0500
@@ -87,7 +87,7 @@ void
 brcms_c_stf_ss_algo_channel_get(struct brcms_c_info *wlc, u16 *ss_algo_channel,
 			    u16 chanspec)
 {
-	struct tx_power power;
+	struct tx_power power = { };
 	u8 siso_mcs_id, cdd_mcs_id, stbc_mcs_id;
 
 	/* Clear previous settings */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/cw1200/sta.c linux-libre-4.4.107-gnu/drivers/net/wireless/cw1200/sta.c
--- linux-libre-4.4-gnu/drivers/net/wireless/cw1200/sta.c	2016-01-10 21:09:26.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/cw1200/sta.c	2017-12-20 11:34:07.000000000 -0500
@@ -2135,9 +2135,7 @@ void cw1200_mcast_timeout(unsigned long
 
 int cw1200_ampdu_action(struct ieee80211_hw *hw,
 			struct ieee80211_vif *vif,
-			enum ieee80211_ampdu_mlme_action action,
-			struct ieee80211_sta *sta, u16 tid, u16 *ssn,
-			u8 buf_size, bool amsdu)
+			struct ieee80211_ampdu_params *params)
 {
 	/* Aggregation is implemented fully in firmware,
 	 * including block ack negotiation. Do not allow
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/cw1200/sta.h linux-libre-4.4.107-gnu/drivers/net/wireless/cw1200/sta.h
--- linux-libre-4.4-gnu/drivers/net/wireless/cw1200/sta.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/cw1200/sta.h	2017-12-20 04:05:01.000000000 -0500
@@ -109,9 +109,7 @@ void cw1200_bss_info_changed(struct ieee
 			     u32 changed);
 int cw1200_ampdu_action(struct ieee80211_hw *hw,
 			struct ieee80211_vif *vif,
-			enum ieee80211_ampdu_mlme_action action,
-			struct ieee80211_sta *sta, u16 tid, u16 *ssn,
-			u8 buf_size, bool amsdu);
+			struct ieee80211_ampdu_params *params);
 
 void cw1200_suspend_resume(struct cw1200_common *priv,
 			  struct wsm_suspend_resume *arg);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/hostap/hostap_hw.c linux-libre-4.4.107-gnu/drivers/net/wireless/hostap/hostap_hw.c
--- linux-libre-4.4-gnu/drivers/net/wireless/hostap/hostap_hw.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/hostap/hostap_hw.c	2017-12-20 04:05:01.000000000 -0500
@@ -836,25 +836,30 @@ static int hfa384x_get_rid(struct net_de
 	spin_lock_bh(&local->baplock);
 
 	res = hfa384x_setup_bap(dev, BAP0, rid, 0);
-	if (!res)
-		res = hfa384x_from_bap(dev, BAP0, &rec, sizeof(rec));
+	if (res)
+		goto unlock;
+
+	res = hfa384x_from_bap(dev, BAP0, &rec, sizeof(rec));
+	if (res)
+		goto unlock;
 
 	if (le16_to_cpu(rec.len) == 0) {
 		/* RID not available */
 		res = -ENODATA;
+		goto unlock;
 	}
 
 	rlen = (le16_to_cpu(rec.len) - 1) * 2;
-	if (!res && exact_len && rlen != len) {
+	if (exact_len && rlen != len) {
 		printk(KERN_DEBUG "%s: hfa384x_get_rid - RID len mismatch: "
 		       "rid=0x%04x, len=%d (expected %d)\n",
 		       dev->name, rid, rlen, len);
 		res = -ENODATA;
 	}
 
-	if (!res)
-		res = hfa384x_from_bap(dev, BAP0, buf, len);
+	res = hfa384x_from_bap(dev, BAP0, buf, len);
 
+unlock:
 	spin_unlock_bh(&local->baplock);
 	mutex_unlock(&local->rid_bap_mtx);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/iwlegacy/3945.c linux-libre-4.4.107-gnu/drivers/net/wireless/iwlegacy/3945.c
--- linux-libre-4.4-gnu/drivers/net/wireless/iwlegacy/3945.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/iwlegacy/3945.c	2017-12-20 04:05:01.000000000 -0500
@@ -1019,12 +1019,13 @@ il3945_hw_txq_ctx_free(struct il_priv *i
 	int txq_id;
 
 	/* Tx queues */
-	if (il->txq)
+	if (il->txq) {
 		for (txq_id = 0; txq_id < il->hw_params.max_txq_num; txq_id++)
 			if (txq_id == IL39_CMD_QUEUE_NUM)
 				il_cmd_queue_free(il);
 			else
 				il_tx_queue_free(il, txq_id);
+	}
 
 	/* free tx queue structure */
 	il_free_txq_mem(il);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/iwlegacy/4965.h linux-libre-4.4.107-gnu/drivers/net/wireless/iwlegacy/4965.h
--- linux-libre-4.4-gnu/drivers/net/wireless/iwlegacy/4965.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/iwlegacy/4965.h	2017-12-20 04:05:01.000000000 -0500
@@ -182,9 +182,7 @@ void il4965_mac_update_tkip_key(struct i
 				struct ieee80211_sta *sta, u32 iv32,
 				u16 *phase1key);
 int il4965_mac_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
-			    enum ieee80211_ampdu_mlme_action action,
-			    struct ieee80211_sta *sta, u16 tid, u16 * ssn,
-			    u8 buf_size, bool amsdu);
+			    struct ieee80211_ampdu_params *params);
 int il4965_mac_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 		       struct ieee80211_sta *sta);
 void
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/iwlegacy/4965-mac.c linux-libre-4.4.107-gnu/drivers/net/wireless/iwlegacy/4965-mac.c
--- linux-libre-4.4-gnu/drivers/net/wireless/iwlegacy/4965-mac.c	2016-01-10 21:07:16.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/iwlegacy/4965-mac.c	2017-12-20 11:30:49.000000000 -0500
@@ -5982,12 +5982,14 @@ il4965_mac_set_key(struct ieee80211_hw *
 
 int
 il4965_mac_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
-			enum ieee80211_ampdu_mlme_action action,
-			struct ieee80211_sta *sta, u16 tid, u16 * ssn,
-			u8 buf_size, bool amsdu)
+			struct ieee80211_ampdu_params *params)
 {
 	struct il_priv *il = hw->priv;
 	int ret = -EINVAL;
+	struct ieee80211_sta *sta = params->sta;
+	enum ieee80211_ampdu_mlme_action action = params->action;
+	u16 tid = params->tid;
+	u16 *ssn = &params->ssn;
 
 	D_HT("A-MPDU action on addr %pM tid %d\n", sta->addr, tid);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/iwlwifi/dvm/calib.c linux-libre-4.4.107-gnu/drivers/net/wireless/iwlwifi/dvm/calib.c
--- linux-libre-4.4-gnu/drivers/net/wireless/iwlwifi/dvm/calib.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/iwlwifi/dvm/calib.c	2017-12-20 04:05:01.000000000 -0500
@@ -901,7 +901,7 @@ static void iwlagn_gain_computation(stru
 		/* bound gain by 2 bits value max, 3rd bit is sign */
 		data->delta_gain_code[i] =
 			min(abs(delta_g),
-			(long) CHAIN_NOISE_MAX_DELTA_GAIN_CODE);
+			(s32) CHAIN_NOISE_MAX_DELTA_GAIN_CODE);
 
 		if (delta_g < 0)
 			/*
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/iwlwifi/dvm/lib.c linux-libre-4.4.107-gnu/drivers/net/wireless/iwlwifi/dvm/lib.c
--- linux-libre-4.4-gnu/drivers/net/wireless/iwlwifi/dvm/lib.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/iwlwifi/dvm/lib.c	2017-12-20 04:05:01.000000000 -0500
@@ -1154,6 +1154,9 @@ int iwlagn_suspend(struct iwl_priv *priv
 
 	priv->ucode_loaded = false;
 	iwl_trans_stop_device(priv->trans);
+	ret = iwl_trans_start_hw(priv->trans);
+	if (ret)
+		goto out;
 
 	priv->wowlan = true;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/iwlwifi/dvm/mac80211.c linux-libre-4.4.107-gnu/drivers/net/wireless/iwlwifi/dvm/mac80211.c
--- linux-libre-4.4-gnu/drivers/net/wireless/iwlwifi/dvm/mac80211.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/iwlwifi/dvm/mac80211.c	2017-12-20 04:05:01.000000000 -0500
@@ -729,12 +729,15 @@ static inline bool iwl_enable_tx_ampdu(c
 
 static int iwlagn_mac_ampdu_action(struct ieee80211_hw *hw,
 				   struct ieee80211_vif *vif,
-				   enum ieee80211_ampdu_mlme_action action,
-				   struct ieee80211_sta *sta, u16 tid, u16 *ssn,
-				   u8 buf_size, bool amsdu)
+				   struct ieee80211_ampdu_params *params)
 {
 	struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
 	int ret = -EINVAL;
+	struct ieee80211_sta *sta = params->sta;
+	enum ieee80211_ampdu_mlme_action action = params->action;
+	u16 tid = params->tid;
+	u16 *ssn = &params->ssn;
+	u8 buf_size = params->buf_size;
 	struct iwl_station_priv *sta_priv = (void *) sta->drv_priv;
 
 	IWL_DEBUG_HT(priv, "A-MPDU action on addr %pM tid %d\n",
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/iwlwifi/iwl-nvm-parse.c linux-libre-4.4.107-gnu/drivers/net/wireless/iwlwifi/iwl-nvm-parse.c
--- linux-libre-4.4-gnu/drivers/net/wireless/iwlwifi/iwl-nvm-parse.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/iwlwifi/iwl-nvm-parse.c	2017-12-20 04:05:01.000000000 -0500
@@ -73,6 +73,7 @@
 /* NVM offsets (in words) definitions */
 enum wkp_nvm_offsets {
 	/* NVM HW-Section offset (in words) definitions */
+	SUBSYSTEM_ID = 0x0A,
 	HW_ADDR = 0x15,
 
 	/* NVM SW-Section offset (in words) definitions */
@@ -257,13 +258,12 @@ static u32 iwl_get_channel_flags(u8 ch_n
 static int iwl_init_channel_map(struct device *dev, const struct iwl_cfg *cfg,
 				struct iwl_nvm_data *data,
 				const __le16 * const nvm_ch_flags,
-				bool lar_supported)
+				bool lar_supported, bool no_wide_in_5ghz)
 {
 	int ch_idx;
 	int n_channels = 0;
 	struct ieee80211_channel *channel;
 	u16 ch_flags;
-	bool is_5ghz;
 	int num_of_ch, num_2ghz_channels;
 	const u8 *nvm_chan;
 
@@ -278,12 +278,20 @@ static int iwl_init_channel_map(struct d
 	}
 
 	for (ch_idx = 0; ch_idx < num_of_ch; ch_idx++) {
+		bool is_5ghz = (ch_idx >= num_2ghz_channels);
+
 		ch_flags = __le16_to_cpup(nvm_ch_flags + ch_idx);
 
-		if (ch_idx >= num_2ghz_channels &&
-		    !data->sku_cap_band_52GHz_enable)
+		if (is_5ghz && !data->sku_cap_band_52GHz_enable)
 			continue;
 
+		/* workaround to disable wide channels in 5GHz */
+		if (no_wide_in_5ghz && is_5ghz) {
+			ch_flags &= ~(NVM_CHANNEL_40MHZ |
+				     NVM_CHANNEL_80MHZ |
+				     NVM_CHANNEL_160MHZ);
+		}
+
 		if (!lar_supported && !(ch_flags & NVM_CHANNEL_VALID)) {
 			/*
 			 * Channels might become valid later if lar is
@@ -303,8 +311,8 @@ static int iwl_init_channel_map(struct d
 		n_channels++;
 
 		channel->hw_value = nvm_chan[ch_idx];
-		channel->band = (ch_idx < num_2ghz_channels) ?
-				IEEE80211_BAND_2GHZ : IEEE80211_BAND_5GHZ;
+		channel->band = is_5ghz ?
+				IEEE80211_BAND_5GHZ : IEEE80211_BAND_2GHZ;
 		channel->center_freq =
 			ieee80211_channel_to_frequency(
 				channel->hw_value, channel->band);
@@ -316,7 +324,6 @@ static int iwl_init_channel_map(struct d
 		 * is not used in mvm, and is used for backwards compatibility
 		 */
 		channel->max_power = IWL_DEFAULT_MAX_TX_POWER;
-		is_5ghz = channel->band == IEEE80211_BAND_5GHZ;
 
 		/* don't put limitations in case we're using LAR */
 		if (!lar_supported)
@@ -405,7 +412,8 @@ static void iwl_init_vht_hw_capab(const
 static void iwl_init_sbands(struct device *dev, const struct iwl_cfg *cfg,
 			    struct iwl_nvm_data *data,
 			    const __le16 *ch_section,
-			    u8 tx_chains, u8 rx_chains, bool lar_supported)
+			    u8 tx_chains, u8 rx_chains, bool lar_supported,
+			    bool no_wide_in_5ghz)
 {
 	int n_channels;
 	int n_used = 0;
@@ -414,12 +422,14 @@ static void iwl_init_sbands(struct devic
 	if (cfg->device_family != IWL_DEVICE_FAMILY_8000)
 		n_channels = iwl_init_channel_map(
 				dev, cfg, data,
-				&ch_section[NVM_CHANNELS], lar_supported);
+				&ch_section[NVM_CHANNELS], lar_supported,
+				no_wide_in_5ghz);
 	else
 		n_channels = iwl_init_channel_map(
 				dev, cfg, data,
 				&ch_section[NVM_CHANNELS_FAMILY_8000],
-				lar_supported);
+				lar_supported,
+				no_wide_in_5ghz);
 
 	sband = &data->bands[IEEE80211_BAND_2GHZ];
 	sband->band = IEEE80211_BAND_2GHZ;
@@ -582,6 +592,39 @@ static void iwl_set_hw_address_family_80
 
 #define IWL_4165_DEVICE_ID 0x5501
 
+static bool
+iwl_nvm_no_wide_in_5ghz(struct device *dev, const struct iwl_cfg *cfg,
+			const __le16 *nvm_hw)
+{
+	/*
+	 * Workaround a bug in Indonesia SKUs where the regulatory in
+	 * some 7000-family OTPs erroneously allow wide channels in
+	 * 5GHz.  To check for Indonesia, we take the SKU value from
+	 * bits 1-4 in the subsystem ID and check if it is either 5 or
+	 * 9.  In those cases, we need to force-disable wide channels
+	 * in 5GHz otherwise the FW will throw a sysassert when we try
+	 * to use them.
+	 */
+	if (cfg->device_family == IWL_DEVICE_FAMILY_7000) {
+		/*
+		 * Unlike the other sections in the NVM, the hw
+		 * section uses big-endian.
+		 */
+		u16 subsystem_id = be16_to_cpup((const __be16 *)nvm_hw
+						+ SUBSYSTEM_ID);
+		u8 sku = (subsystem_id & 0x1e) >> 1;
+
+		if (sku == 5 || sku == 9) {
+			IWL_DEBUG_EEPROM(dev,
+					 "disabling wide channels in 5GHz (0x%0x %d)\n",
+					 subsystem_id, sku);
+			return true;
+		}
+	}
+
+	return false;
+}
+
 struct iwl_nvm_data *
 iwl_parse_nvm_data(struct device *dev, const struct iwl_cfg *cfg,
 		   const __le16 *nvm_hw, const __le16 *nvm_sw,
@@ -591,6 +634,7 @@ iwl_parse_nvm_data(struct device *dev, c
 		   u32 mac_addr0, u32 mac_addr1, u32 hw_id)
 {
 	struct iwl_nvm_data *data;
+	bool no_wide_in_5ghz = iwl_nvm_no_wide_in_5ghz(dev, cfg, nvm_hw);
 	u32 sku;
 	u32 radio_cfg;
 	u16 lar_config;
@@ -657,7 +701,8 @@ iwl_parse_nvm_data(struct device *dev, c
 		iwl_set_hw_address(cfg, data, nvm_hw);
 
 		iwl_init_sbands(dev, cfg, data, nvm_sw,
-				tx_chains, rx_chains, lar_fw_supported);
+				tx_chains, rx_chains, lar_fw_supported,
+				no_wide_in_5ghz);
 	} else {
 		u16 lar_offset = data->nvm_version < 0xE39 ?
 				 NVM_LAR_OFFSET_FAMILY_8000_OLD :
@@ -673,7 +718,8 @@ iwl_parse_nvm_data(struct device *dev, c
 
 		iwl_init_sbands(dev, cfg, data, regulatory,
 				tx_chains, rx_chains,
-				lar_fw_supported && data->lar_enabled);
+				lar_fw_supported && data->lar_enabled,
+				no_wide_in_5ghz);
 	}
 
 	data->calib_version = 255;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/iwlwifi/mvm/fw.c linux-libre-4.4.107-gnu/drivers/net/wireless/iwlwifi/mvm/fw.c
--- linux-libre-4.4-gnu/drivers/net/wireless/iwlwifi/mvm/fw.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/iwlwifi/mvm/fw.c	2017-12-20 04:05:01.000000000 -0500
@@ -106,7 +106,7 @@ static int iwl_send_tx_ant_cfg(struct iw
 				    sizeof(tx_ant_cmd), &tx_ant_cmd);
 }
 
-static void iwl_free_fw_paging(struct iwl_mvm *mvm)
+void iwl_free_fw_paging(struct iwl_mvm *mvm)
 {
 	int i;
 
@@ -126,6 +126,8 @@ static void iwl_free_fw_paging(struct iw
 			     get_order(mvm->fw_paging_db[i].fw_paging_size));
 	}
 	kfree(mvm->trans->paging_download_buf);
+	mvm->trans->paging_download_buf = NULL;
+
 	memset(mvm->fw_paging_db, 0, sizeof(mvm->fw_paging_db));
 }
 
@@ -933,7 +935,8 @@ int iwl_mvm_start_fw_dbg_conf(struct iwl
 	}
 
 	mvm->fw_dbg_conf = conf_id;
-	return ret;
+
+	return 0;
 }
 
 static int iwl_mvm_config_ltr(struct iwl_mvm *mvm)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/iwlwifi/mvm/mac80211.c linux-libre-4.4.107-gnu/drivers/net/wireless/iwlwifi/mvm/mac80211.c
--- linux-libre-4.4-gnu/drivers/net/wireless/iwlwifi/mvm/mac80211.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/iwlwifi/mvm/mac80211.c	2017-12-20 04:05:01.000000000 -0500
@@ -826,13 +826,16 @@ iwl_mvm_ampdu_check_trigger(struct iwl_m
 
 static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw,
 				    struct ieee80211_vif *vif,
-				    enum ieee80211_ampdu_mlme_action action,
-				    struct ieee80211_sta *sta, u16 tid,
-				    u16 *ssn, u8 buf_size, bool amsdu)
+				    struct ieee80211_ampdu_params *params)
 {
 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
 	int ret;
 	bool tx_agg_ref = false;
+	struct ieee80211_sta *sta = params->sta;
+	enum ieee80211_ampdu_mlme_action action = params->action;
+	u16 tid = params->tid;
+	u16 *ssn = &params->ssn;
+	u8 buf_size = params->buf_size;
 
 	IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n",
 		     sta->addr, tid, action);
@@ -1557,6 +1560,8 @@ void __iwl_mvm_mac_stop(struct iwl_mvm *
 	/* the fw is stopped, the aux sta is dead: clean up driver state */
 	iwl_mvm_del_aux_sta(mvm);
 
+	iwl_free_fw_paging(mvm);
+
 	/*
 	 * Clear IN_HW_RESTART flag when stopping the hw (as restart_complete()
 	 * won't be called in this case).
@@ -1901,6 +1906,11 @@ static void iwl_mvm_mc_iface_iterator(vo
 	struct iwl_mvm_mc_iter_data *data = _data;
 	struct iwl_mvm *mvm = data->mvm;
 	struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd;
+	struct iwl_host_cmd hcmd = {
+		.id = MCAST_FILTER_CMD,
+		.flags = CMD_ASYNC,
+		.dataflags[0] = IWL_HCMD_DFL_NOCOPY,
+	};
 	int ret, len;
 
 	/* if we don't have free ports, mcast frames will be dropped */
@@ -1915,7 +1925,10 @@ static void iwl_mvm_mc_iface_iterator(vo
 	memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN);
 	len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4);
 
-	ret = iwl_mvm_send_cmd_pdu(mvm, MCAST_FILTER_CMD, CMD_ASYNC, len, cmd);
+	hcmd.len[0] = len;
+	hcmd.data[0] = cmd;
+
+	ret = iwl_mvm_send_cmd(mvm, &hcmd);
 	if (ret)
 		IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret);
 }
@@ -3990,8 +4003,8 @@ static int iwl_mvm_mac_get_survey(struct
 	if (idx != 0)
 		return -ENOENT;
 
-	if (fw_has_capa(&mvm->fw->ucode_capa,
-			IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS))
+	if (!fw_has_capa(&mvm->fw->ucode_capa,
+			 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS))
 		return -ENOENT;
 
 	mutex_lock(&mvm->mutex);
@@ -4037,8 +4050,8 @@ static void iwl_mvm_mac_sta_statistics(s
 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 	struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
 
-	if (fw_has_capa(&mvm->fw->ucode_capa,
-			IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS))
+	if (!fw_has_capa(&mvm->fw->ucode_capa,
+			 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS))
 		return;
 
 	/* if beacon filtering isn't on mac80211 does it anyway */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/iwlwifi/mvm/mvm.h linux-libre-4.4.107-gnu/drivers/net/wireless/iwlwifi/mvm/mvm.h
--- linux-libre-4.4-gnu/drivers/net/wireless/iwlwifi/mvm/mvm.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/iwlwifi/mvm/mvm.h	2017-12-20 04:05:01.000000000 -0500
@@ -1190,6 +1190,9 @@ void iwl_mvm_rx_umac_scan_complete_notif
 void iwl_mvm_rx_umac_scan_iter_complete_notif(struct iwl_mvm *mvm,
 					      struct iwl_rx_cmd_buffer *rxb);
 
+/* Paging */
+void iwl_free_fw_paging(struct iwl_mvm *mvm);
+
 /* MVM debugfs */
 #ifdef CONFIG_IWLWIFI_DEBUGFS
 int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/iwlwifi/mvm/scan.c linux-libre-4.4.107-gnu/drivers/net/wireless/iwlwifi/mvm/scan.c
--- linux-libre-4.4-gnu/drivers/net/wireless/iwlwifi/mvm/scan.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/iwlwifi/mvm/scan.c	2017-12-20 04:05:01.000000000 -0500
@@ -1267,6 +1267,10 @@ int iwl_mvm_sched_scan_start(struct iwl_
 		return -EBUSY;
 	}
 
+	/* we don't support "match all" in the firmware */
+	if (!req->n_match_sets)
+		return -EOPNOTSUPP;
+
 	ret = iwl_mvm_check_running_scans(mvm, type);
 	if (ret)
 		return ret;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/iwlwifi/mvm/sf.c linux-libre-4.4.107-gnu/drivers/net/wireless/iwlwifi/mvm/sf.c
--- linux-libre-4.4-gnu/drivers/net/wireless/iwlwifi/mvm/sf.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/iwlwifi/mvm/sf.c	2017-12-20 04:05:01.000000000 -0500
@@ -215,7 +215,7 @@ static int iwl_mvm_sf_config(struct iwl_
 			     enum iwl_sf_state new_state)
 {
 	struct iwl_sf_cfg_cmd sf_cmd = {
-		.state = cpu_to_le32(SF_FULL_ON),
+		.state = cpu_to_le32(new_state),
 	};
 	struct ieee80211_sta *sta;
 	int ret = 0;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/iwlwifi/mvm/tx.c linux-libre-4.4.107-gnu/drivers/net/wireless/iwlwifi/mvm/tx.c
--- linux-libre-4.4-gnu/drivers/net/wireless/iwlwifi/mvm/tx.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/iwlwifi/mvm/tx.c	2017-12-20 04:05:01.000000000 -0500
@@ -421,6 +421,15 @@ int iwl_mvm_tx_skb_non_sta(struct iwl_mv
 		return -1;
 	}
 
+	/*
+	 * Increase the pending frames counter, so that later when a reply comes
+	 * in and the counter is decreased - we don't start getting negative
+	 * values.
+	 * Note that we don't need to make sure it isn't agg'd, since we're
+	 * TXing non-sta
+	 */
+	atomic_inc(&mvm->pending_frames[sta_id]);
+
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/iwlwifi/pcie/drv.c linux-libre-4.4.107-gnu/drivers/net/wireless/iwlwifi/pcie/drv.c
--- linux-libre-4.4-gnu/drivers/net/wireless/iwlwifi/pcie/drv.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/iwlwifi/pcie/drv.c	2017-12-20 04:05:01.000000000 -0500
@@ -384,6 +384,7 @@ static const struct pci_device_id iwl_hw
 	{IWL_PCI_DEVICE(0x095B, 0x5310, iwl7265_2ac_cfg)},
 	{IWL_PCI_DEVICE(0x095B, 0x5302, iwl7265_n_cfg)},
 	{IWL_PCI_DEVICE(0x095B, 0x5210, iwl7265_2ac_cfg)},
+	{IWL_PCI_DEVICE(0x095A, 0x5C10, iwl7265_2ac_cfg)},
 	{IWL_PCI_DEVICE(0x095A, 0x5012, iwl7265_2ac_cfg)},
 	{IWL_PCI_DEVICE(0x095A, 0x5412, iwl7265_2ac_cfg)},
 	{IWL_PCI_DEVICE(0x095A, 0x5410, iwl7265_2ac_cfg)},
@@ -401,10 +402,10 @@ static const struct pci_device_id iwl_hw
 	{IWL_PCI_DEVICE(0x095A, 0x900A, iwl7265_2ac_cfg)},
 	{IWL_PCI_DEVICE(0x095A, 0x9110, iwl7265_2ac_cfg)},
 	{IWL_PCI_DEVICE(0x095A, 0x9112, iwl7265_2ac_cfg)},
-	{IWL_PCI_DEVICE(0x095A, 0x9210, iwl7265_2ac_cfg)},
+	{IWL_PCI_DEVICE(0x095B, 0x9210, iwl7265_2ac_cfg)},
 	{IWL_PCI_DEVICE(0x095B, 0x9200, iwl7265_2ac_cfg)},
 	{IWL_PCI_DEVICE(0x095A, 0x9510, iwl7265_2ac_cfg)},
-	{IWL_PCI_DEVICE(0x095A, 0x9310, iwl7265_2ac_cfg)},
+	{IWL_PCI_DEVICE(0x095B, 0x9310, iwl7265_2ac_cfg)},
 	{IWL_PCI_DEVICE(0x095A, 0x9410, iwl7265_2ac_cfg)},
 	{IWL_PCI_DEVICE(0x095A, 0x5020, iwl7265_2n_cfg)},
 	{IWL_PCI_DEVICE(0x095A, 0x502A, iwl7265_2n_cfg)},
@@ -474,48 +475,64 @@ static const struct pci_device_id iwl_hw
 MODULE_DEVICE_TABLE(pci, iwl_hw_card_ids);
 
 #ifdef CONFIG_ACPI
-#define SPL_METHOD		"SPLC"
-#define SPL_DOMAINTYPE_MODULE	BIT(0)
-#define SPL_DOMAINTYPE_WIFI	BIT(1)
-#define SPL_DOMAINTYPE_WIGIG	BIT(2)
-#define SPL_DOMAINTYPE_RFEM	BIT(3)
+#define ACPI_SPLC_METHOD	"SPLC"
+#define ACPI_SPLC_DOMAIN_WIFI	(0x07)
 
-static u64 splx_get_pwr_limit(struct iwl_trans *trans, union acpi_object *splx)
+static u64 splc_get_pwr_limit(struct iwl_trans *trans, union acpi_object *splc)
 {
-	union acpi_object *limits, *domain_type, *power_limit;
+	union acpi_object *data_pkg, *dflt_pwr_limit;
+	int i;
 
-	if (splx->type != ACPI_TYPE_PACKAGE ||
-	    splx->package.count != 2 ||
-	    splx->package.elements[0].type != ACPI_TYPE_INTEGER ||
-	    splx->package.elements[0].integer.value != 0) {
-		IWL_ERR(trans, "Unsupported splx structure\n");
+	/* We need at least two elements, one for the revision and one
+	 * for the data itself.  Also check that the revision is
+	 * supported (currently only revision 0).
+	*/
+	if (splc->type != ACPI_TYPE_PACKAGE ||
+	    splc->package.count < 2 ||
+	    splc->package.elements[0].type != ACPI_TYPE_INTEGER ||
+	    splc->package.elements[0].integer.value != 0) {
+		IWL_DEBUG_INFO(trans,
+			       "Unsupported structure returned by the SPLC method.  Ignoring.\n");
 		return 0;
 	}
 
-	limits = &splx->package.elements[1];
-	if (limits->type != ACPI_TYPE_PACKAGE ||
-	    limits->package.count < 2 ||
-	    limits->package.elements[0].type != ACPI_TYPE_INTEGER ||
-	    limits->package.elements[1].type != ACPI_TYPE_INTEGER) {
-		IWL_ERR(trans, "Invalid limits element\n");
-		return 0;
+	/* loop through all the packages to find the one for WiFi */
+	for (i = 1; i < splc->package.count; i++) {
+		union acpi_object *domain;
+
+		data_pkg = &splc->package.elements[i];
+
+		/* Skip anything that is not a package with the right
+		 * amount of elements (i.e. at least 2 integers).
+		 */
+		if (data_pkg->type != ACPI_TYPE_PACKAGE ||
+		    data_pkg->package.count < 2 ||
+		    data_pkg->package.elements[0].type != ACPI_TYPE_INTEGER ||
+		    data_pkg->package.elements[1].type != ACPI_TYPE_INTEGER)
+			continue;
+
+		domain = &data_pkg->package.elements[0];
+		if (domain->integer.value == ACPI_SPLC_DOMAIN_WIFI)
+			break;
+
+		data_pkg = NULL;
 	}
 
-	domain_type = &limits->package.elements[0];
-	power_limit = &limits->package.elements[1];
-	if (!(domain_type->integer.value & SPL_DOMAINTYPE_WIFI)) {
-		IWL_DEBUG_INFO(trans, "WiFi power is not limited\n");
+	if (!data_pkg) {
+		IWL_DEBUG_INFO(trans,
+			       "No element for the WiFi domain returned by the SPLC method.\n");
 		return 0;
 	}
 
-	return power_limit->integer.value;
+	dflt_pwr_limit = &data_pkg->package.elements[1];
+	return dflt_pwr_limit->integer.value;
 }
 
 static void set_dflt_pwr_limit(struct iwl_trans *trans, struct pci_dev *pdev)
 {
 	acpi_handle pxsx_handle;
 	acpi_handle handle;
-	struct acpi_buffer splx = {ACPI_ALLOCATE_BUFFER, NULL};
+	struct acpi_buffer splc = {ACPI_ALLOCATE_BUFFER, NULL};
 	acpi_status status;
 
 	pxsx_handle = ACPI_HANDLE(&pdev->dev);
@@ -526,23 +543,24 @@ static void set_dflt_pwr_limit(struct iw
 	}
 
 	/* Get the method's handle */
-	status = acpi_get_handle(pxsx_handle, (acpi_string)SPL_METHOD, &handle);
+	status = acpi_get_handle(pxsx_handle, (acpi_string)ACPI_SPLC_METHOD,
+				 &handle);
 	if (ACPI_FAILURE(status)) {
-		IWL_DEBUG_INFO(trans, "SPL method not found\n");
+		IWL_DEBUG_INFO(trans, "SPLC method not found\n");
 		return;
 	}
 
 	/* Call SPLC with no arguments */
-	status = acpi_evaluate_object(handle, NULL, NULL, &splx);
+	status = acpi_evaluate_object(handle, NULL, NULL, &splc);
 	if (ACPI_FAILURE(status)) {
 		IWL_ERR(trans, "SPLC invocation failed (0x%x)\n", status);
 		return;
 	}
 
-	trans->dflt_pwr_limit = splx_get_pwr_limit(trans, splx.pointer);
+	trans->dflt_pwr_limit = splc_get_pwr_limit(trans, splc.pointer);
 	IWL_DEBUG_INFO(trans, "Default power limit set to %lld\n",
 		       trans->dflt_pwr_limit);
-	kfree(splx.pointer);
+	kfree(splc.pointer);
 }
 
 #else /* CONFIG_ACPI */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/iwlwifi/pcie/trans.c linux-libre-4.4.107-gnu/drivers/net/wireless/iwlwifi/pcie/trans.c
--- linux-libre-4.4-gnu/drivers/net/wireless/iwlwifi/pcie/trans.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/iwlwifi/pcie/trans.c	2017-12-20 04:05:01.000000000 -0500
@@ -7,6 +7,7 @@
  *
  * Copyright(c) 2007 - 2015 Intel Corporation. All rights reserved.
  * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
+ * Copyright(c) 2016 Intel Deutschland GmbH
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of version 2 of the GNU General Public License as
@@ -33,6 +34,7 @@
  *
  * Copyright(c) 2005 - 2015 Intel Corporation. All rights reserved.
  * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
+ * Copyright(c) 2016 Intel Deutschland GmbH
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -729,8 +731,8 @@ static int iwl_pcie_rsa_race_bug_wa(stru
 	 */
 	val = iwl_read_prph(trans, PREG_AUX_BUS_WPROT_0);
 	if (val & (BIT(1) | BIT(17))) {
-		IWL_INFO(trans,
-			 "can't access the RSA semaphore it is write protected\n");
+		IWL_DEBUG_INFO(trans,
+			       "can't access the RSA semaphore it is write protected\n");
 		return 0;
 	}
 
@@ -924,9 +926,16 @@ monitor:
 	if (dest->monitor_mode == EXTERNAL_MODE && trans_pcie->fw_mon_size) {
 		iwl_write_prph(trans, le32_to_cpu(dest->base_reg),
 			       trans_pcie->fw_mon_phys >> dest->base_shift);
-		iwl_write_prph(trans, le32_to_cpu(dest->end_reg),
-			       (trans_pcie->fw_mon_phys +
-				trans_pcie->fw_mon_size) >> dest->end_shift);
+		if (trans->cfg->device_family == IWL_DEVICE_FAMILY_8000)
+			iwl_write_prph(trans, le32_to_cpu(dest->end_reg),
+				       (trans_pcie->fw_mon_phys +
+					trans_pcie->fw_mon_size - 256) >>
+						dest->end_shift);
+		else
+			iwl_write_prph(trans, le32_to_cpu(dest->end_reg),
+				       (trans_pcie->fw_mon_phys +
+					trans_pcie->fw_mon_size) >>
+						dest->end_shift);
 	}
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/iwlwifi/pcie/tx.c linux-libre-4.4.107-gnu/drivers/net/wireless/iwlwifi/pcie/tx.c
--- linux-libre-4.4-gnu/drivers/net/wireless/iwlwifi/pcie/tx.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/iwlwifi/pcie/tx.c	2017-12-20 04:05:01.000000000 -0500
@@ -1508,9 +1508,9 @@ static int iwl_pcie_enqueue_hcmd(struct
 
 	/* start the TFD with the scratchbuf */
 	scratch_size = min_t(int, copy_size, IWL_HCMD_SCRATCHBUF_SIZE);
-	memcpy(&txq->scratchbufs[q->write_ptr], &out_cmd->hdr, scratch_size);
+	memcpy(&txq->scratchbufs[idx], &out_cmd->hdr, scratch_size);
 	iwl_pcie_txq_build_tfd(trans, txq,
-			       iwl_pcie_get_scratchbuf_dma(txq, q->write_ptr),
+			       iwl_pcie_get_scratchbuf_dma(txq, idx),
 			       scratch_size, true);
 
 	/* map first command fragment, if any remains */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/mac80211_hwsim.c linux-libre-4.4.107-gnu/drivers/net/wireless/mac80211_hwsim.c
--- linux-libre-4.4-gnu/drivers/net/wireless/mac80211_hwsim.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/mac80211_hwsim.c	2017-12-20 04:05:01.000000000 -0500
@@ -1817,10 +1817,12 @@ static int mac80211_hwsim_testmode_cmd(s
 
 static int mac80211_hwsim_ampdu_action(struct ieee80211_hw *hw,
 				       struct ieee80211_vif *vif,
-				       enum ieee80211_ampdu_mlme_action action,
-				       struct ieee80211_sta *sta, u16 tid, u16 *ssn,
-				       u8 buf_size, bool amsdu)
+				       struct ieee80211_ampdu_params *params)
 {
+	struct ieee80211_sta *sta = params->sta;
+	enum ieee80211_ampdu_mlme_action action = params->action;
+	u16 tid = params->tid;
+
 	switch (action) {
 	case IEEE80211_AMPDU_TX_START:
 		ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
@@ -2537,7 +2539,7 @@ static int mac80211_hwsim_new_radio(stru
 
 	tasklet_hrtimer_init(&data->beacon_timer,
 			     mac80211_hwsim_beacon,
-			     CLOCK_MONOTONIC_RAW, HRTIMER_MODE_ABS);
+			     CLOCK_MONOTONIC, HRTIMER_MODE_ABS);
 
 	spin_lock_bh(&hwsim_radio_lock);
 	list_add_tail(&data->list, &hwsim_radios);
@@ -2723,6 +2725,7 @@ static int hwsim_tx_info_frame_received_
 	if (!info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER] ||
 	    !info->attrs[HWSIM_ATTR_FLAGS] ||
 	    !info->attrs[HWSIM_ATTR_COOKIE] ||
+	    !info->attrs[HWSIM_ATTR_SIGNAL] ||
 	    !info->attrs[HWSIM_ATTR_TX_INFO])
 		goto out;
 
@@ -2881,6 +2884,8 @@ static int hwsim_register_received_nl(st
 static int hwsim_new_radio_nl(struct sk_buff *msg, struct genl_info *info)
 {
 	struct hwsim_new_radio_params param = { 0 };
+	const char *hwname = NULL;
+	int ret;
 
 	param.reg_strict = info->attrs[HWSIM_ATTR_REG_STRICT_REG];
 	param.p2p_device = info->attrs[HWSIM_ATTR_SUPPORT_P2P_DEVICE];
@@ -2894,8 +2899,14 @@ static int hwsim_new_radio_nl(struct sk_
 	if (info->attrs[HWSIM_ATTR_NO_VIF])
 		param.no_vif = true;
 
-	if (info->attrs[HWSIM_ATTR_RADIO_NAME])
-		param.hwname = nla_data(info->attrs[HWSIM_ATTR_RADIO_NAME]);
+	if (info->attrs[HWSIM_ATTR_RADIO_NAME]) {
+		hwname = kasprintf(GFP_KERNEL, "%.*s",
+				   nla_len(info->attrs[HWSIM_ATTR_RADIO_NAME]),
+				   (char *)nla_data(info->attrs[HWSIM_ATTR_RADIO_NAME]));
+		if (!hwname)
+			return -ENOMEM;
+		param.hwname = hwname;
+	}
 
 	if (info->attrs[HWSIM_ATTR_USE_CHANCTX])
 		param.use_chanctx = true;
@@ -2914,7 +2925,9 @@ static int hwsim_new_radio_nl(struct sk_
 		param.regd = hwsim_world_regdom_custom[idx];
 	}
 
-	return mac80211_hwsim_new_radio(info, &param);
+	ret = mac80211_hwsim_new_radio(info, &param);
+	kfree(hwname);
+	return ret;
 }
 
 static int hwsim_del_radio_nl(struct sk_buff *msg, struct genl_info *info)
@@ -2923,11 +2936,15 @@ static int hwsim_del_radio_nl(struct sk_
 	s64 idx = -1;
 	const char *hwname = NULL;
 
-	if (info->attrs[HWSIM_ATTR_RADIO_ID])
+	if (info->attrs[HWSIM_ATTR_RADIO_ID]) {
 		idx = nla_get_u32(info->attrs[HWSIM_ATTR_RADIO_ID]);
-	else if (info->attrs[HWSIM_ATTR_RADIO_NAME])
-		hwname = (void *)nla_data(info->attrs[HWSIM_ATTR_RADIO_NAME]);
-	else
+	} else if (info->attrs[HWSIM_ATTR_RADIO_NAME]) {
+		hwname = kasprintf(GFP_KERNEL, "%.*s",
+				   nla_len(info->attrs[HWSIM_ATTR_RADIO_NAME]),
+				   (char *)nla_data(info->attrs[HWSIM_ATTR_RADIO_NAME]));
+		if (!hwname)
+			return -ENOMEM;
+	} else
 		return -EINVAL;
 
 	spin_lock_bh(&hwsim_radio_lock);
@@ -2936,7 +2953,8 @@ static int hwsim_del_radio_nl(struct sk_
 			if (data->idx != idx)
 				continue;
 		} else {
-			if (strcmp(hwname, wiphy_name(data->hw->wiphy)))
+			if (!hwname ||
+			    strcmp(hwname, wiphy_name(data->hw->wiphy)))
 				continue;
 		}
 
@@ -2944,10 +2962,12 @@ static int hwsim_del_radio_nl(struct sk_
 		spin_unlock_bh(&hwsim_radio_lock);
 		mac80211_hwsim_del_radio(data, wiphy_name(data->hw->wiphy),
 					 info);
+		kfree(hwname);
 		return 0;
 	}
 	spin_unlock_bh(&hwsim_radio_lock);
 
+	kfree(hwname);
 	return -ENODEV;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/mediatek/mt7601u/main.c linux-libre-4.4.107-gnu/drivers/net/wireless/mediatek/mt7601u/main.c
--- linux-libre-4.4-gnu/drivers/net/wireless/mediatek/mt7601u/main.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/mediatek/mt7601u/main.c	2017-12-20 04:05:01.000000000 -0500
@@ -334,11 +334,13 @@ static int mt7601u_set_rts_threshold(str
 
 static int
 mt76_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
-		  enum ieee80211_ampdu_mlme_action action,
-		  struct ieee80211_sta *sta, u16 tid, u16 *ssn, u8 buf_size,
-		  bool amsdu)
+		  struct ieee80211_ampdu_params *params)
 {
 	struct mt7601u_dev *dev = hw->priv;
+	struct ieee80211_sta *sta = params->sta;
+	enum ieee80211_ampdu_mlme_action action = params->action;
+	u16 tid = params->tid;
+	u16 *ssn = &params->ssn;
 	struct mt76_sta *msta = (struct mt76_sta *) sta->drv_priv;
 
 	WARN_ON(msta->wcid.idx > GROUP_WCID(0));
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/mwifiex/11n_aggr.c linux-libre-4.4.107-gnu/drivers/net/wireless/mwifiex/11n_aggr.c
--- linux-libre-4.4-gnu/drivers/net/wireless/mwifiex/11n_aggr.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/mwifiex/11n_aggr.c	2017-12-20 04:05:01.000000000 -0500
@@ -101,13 +101,6 @@ mwifiex_11n_form_amsdu_txpd(struct mwifi
 {
 	struct txpd *local_tx_pd;
 	struct mwifiex_txinfo *tx_info = MWIFIEX_SKB_TXCB(skb);
-	unsigned int pad;
-	int headroom = (priv->adapter->iface_type ==
-			MWIFIEX_USB) ? 0 : INTF_HEADER_LEN;
-
-	pad = ((void *)skb->data - sizeof(*local_tx_pd) -
-		headroom - NULL) & (MWIFIEX_DMA_ALIGN_SZ - 1);
-	skb_push(skb, pad);
 
 	skb_push(skb, sizeof(*local_tx_pd));
 
@@ -121,12 +114,10 @@ mwifiex_11n_form_amsdu_txpd(struct mwifi
 	local_tx_pd->bss_num = priv->bss_num;
 	local_tx_pd->bss_type = priv->bss_type;
 	/* Always zero as the data is followed by struct txpd */
-	local_tx_pd->tx_pkt_offset = cpu_to_le16(sizeof(struct txpd) +
-						 pad);
+	local_tx_pd->tx_pkt_offset = cpu_to_le16(sizeof(struct txpd));
 	local_tx_pd->tx_pkt_type = cpu_to_le16(PKT_TYPE_AMSDU);
 	local_tx_pd->tx_pkt_length = cpu_to_le16(skb->len -
-						 sizeof(*local_tx_pd) -
-						 pad);
+						 sizeof(*local_tx_pd));
 
 	if (tx_info->flags & MWIFIEX_BUF_FLAG_TDLS_PKT)
 		local_tx_pd->flags |= MWIFIEX_TXPD_FLAGS_TDLS_PACKET;
@@ -190,7 +181,11 @@ mwifiex_11n_aggregate_pkt(struct mwifiex
 				       ra_list_flags);
 		return -1;
 	}
-	skb_reserve(skb_aggr, MWIFIEX_MIN_DATA_HEADER_LEN);
+
+	/* skb_aggr->data already 64 byte align, just reserve bus interface
+	 * header and txpd.
+	 */
+	skb_reserve(skb_aggr, headroom + sizeof(struct txpd));
 	tx_info_aggr =  MWIFIEX_SKB_TXCB(skb_aggr);
 
 	memset(tx_info_aggr, 0, sizeof(*tx_info_aggr));
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/mwifiex/cfg80211.c linux-libre-4.4.107-gnu/drivers/net/wireless/mwifiex/cfg80211.c
--- linux-libre-4.4-gnu/drivers/net/wireless/mwifiex/cfg80211.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/mwifiex/cfg80211.c	2017-12-20 04:05:01.000000000 -0500
@@ -2144,8 +2144,9 @@ done:
 			is_scanning_required = 1;
 		} else {
 			mwifiex_dbg(priv->adapter, MSG,
-				    "info: trying to associate to '%s' bssid %pM\n",
-				    (char *)req_ssid.ssid, bss->bssid);
+				    "info: trying to associate to '%.*s' bssid %pM\n",
+				    req_ssid.ssid_len, (char *)req_ssid.ssid,
+				    bss->bssid);
 			memcpy(&priv->cfg_bssid, bss->bssid, ETH_ALEN);
 			break;
 		}
@@ -2202,8 +2203,8 @@ mwifiex_cfg80211_connect(struct wiphy *w
 	}
 
 	mwifiex_dbg(adapter, INFO,
-		    "info: Trying to associate to %s and bssid %pM\n",
-		    (char *)sme->ssid, sme->bssid);
+		    "info: Trying to associate to %.*s and bssid %pM\n",
+		    (int)sme->ssid_len, (char *)sme->ssid, sme->bssid);
 
 	ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid,
 				     priv->bss_mode, sme->channel, sme, 0);
@@ -2333,8 +2334,8 @@ mwifiex_cfg80211_join_ibss(struct wiphy
 	}
 
 	mwifiex_dbg(priv->adapter, MSG,
-		    "info: trying to join to %s and bssid %pM\n",
-		    (char *)params->ssid, params->bssid);
+		    "info: trying to join to %.*s and bssid %pM\n",
+		    params->ssid_len, (char *)params->ssid, params->bssid);
 
 	mwifiex_set_ibss_params(priv, params);
 
@@ -3739,7 +3740,7 @@ int mwifiex_init_channel_scan_gap(struct
 	if (adapter->config_bands & BAND_A)
 		n_channels_a = mwifiex_band_5ghz.n_channels;
 
-	adapter->num_in_chan_stats = max_t(u32, n_channels_bg, n_channels_a);
+	adapter->num_in_chan_stats = n_channels_bg + n_channels_a;
 	adapter->chan_stats = vmalloc(sizeof(*adapter->chan_stats) *
 				      adapter->num_in_chan_stats);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/mwifiex/debugfs.c linux-libre-4.4.107-gnu/drivers/net/wireless/mwifiex/debugfs.c
--- linux-libre-4.4-gnu/drivers/net/wireless/mwifiex/debugfs.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/mwifiex/debugfs.c	2017-12-20 04:05:01.000000000 -0500
@@ -115,7 +115,8 @@ mwifiex_info_read(struct file *file, cha
 	if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) {
 		p += sprintf(p, "multicast_count=\"%d\"\n",
 			     netdev_mc_count(netdev));
-		p += sprintf(p, "essid=\"%s\"\n", info.ssid.ssid);
+		p += sprintf(p, "essid=\"%.*s\"\n", info.ssid.ssid_len,
+			     info.ssid.ssid);
 		p += sprintf(p, "bssid=\"%pM\"\n", info.bssid);
 		p += sprintf(p, "channel=\"%d\"\n", (int) info.bss_chan);
 		p += sprintf(p, "country_code = \"%s\"\n", info.country_code);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/mwifiex/join.c linux-libre-4.4.107-gnu/drivers/net/wireless/mwifiex/join.c
--- linux-libre-4.4-gnu/drivers/net/wireless/mwifiex/join.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/mwifiex/join.c	2017-12-20 04:05:01.000000000 -0500
@@ -661,9 +661,8 @@ int mwifiex_ret_802_11_associate(struct
 	priv->assoc_rsp_size = min(le16_to_cpu(resp->size) - S_DS_GEN,
 				   sizeof(priv->assoc_rsp_buf));
 
-	memcpy(priv->assoc_rsp_buf, &resp->params, priv->assoc_rsp_size);
-
 	assoc_rsp->a_id = cpu_to_le16(aid);
+	memcpy(priv->assoc_rsp_buf, &resp->params, priv->assoc_rsp_size);
 
 	if (status_code) {
 		priv->adapter->dbg.num_cmd_assoc_failure++;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/mwifiex/pcie.c linux-libre-4.4.107-gnu/drivers/net/wireless/mwifiex/pcie.c
--- linux-libre-4.4-gnu/drivers/net/wireless/mwifiex/pcie.c	2016-01-10 21:08:43.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/mwifiex/pcie.c	2017-12-20 11:32:37.000000000 -0500
@@ -947,6 +947,7 @@ static int mwifiex_pcie_delete_cmdrsp_bu
 	if (card && card->cmd_buf) {
 		mwifiex_unmap_pci_memory(adapter, card->cmd_buf,
 					 PCI_DMA_TODEVICE);
+		dev_kfree_skb_any(card->cmd_buf);
 	}
 	return 0;
 }
@@ -1513,6 +1514,11 @@ mwifiex_pcie_send_cmd(struct mwifiex_ada
 		return -1;
 
 	card->cmd_buf = skb;
+	/*
+	 * Need to keep a reference, since core driver might free up this
+	 * buffer before we've unmapped it.
+	 */
+	skb_get(skb);
 
 	/* To send a command, the driver will:
 		1. Write the 64bit physical address of the data buffer to
@@ -1610,6 +1616,7 @@ static int mwifiex_pcie_process_cmd_comp
 	if (card->cmd_buf) {
 		mwifiex_unmap_pci_memory(adapter, card->cmd_buf,
 					 PCI_DMA_TODEVICE);
+		dev_kfree_skb_any(card->cmd_buf);
 		card->cmd_buf = NULL;
 	}
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/mwifiex/scan.c linux-libre-4.4.107-gnu/drivers/net/wireless/mwifiex/scan.c
--- linux-libre-4.4-gnu/drivers/net/wireless/mwifiex/scan.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/mwifiex/scan.c	2017-12-20 04:05:01.000000000 -0500
@@ -2170,6 +2170,12 @@ mwifiex_update_chan_statistics(struct mw
 					      sizeof(struct mwifiex_chan_stats);
 
 	for (i = 0 ; i < num_chan; i++) {
+		if (adapter->survey_idx >= adapter->num_in_chan_stats) {
+			mwifiex_dbg(adapter, WARN,
+				    "FW reported too many channel results (max %d)\n",
+				    adapter->num_in_chan_stats);
+			return;
+		}
 		chan_stats.chan_num = fw_chan_stats->chan_num;
 		chan_stats.bandcfg = fw_chan_stats->bandcfg;
 		chan_stats.flags = fw_chan_stats->flags;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/mwifiex/sta_ioctl.c linux-libre-4.4.107-gnu/drivers/net/wireless/mwifiex/sta_ioctl.c
--- linux-libre-4.4-gnu/drivers/net/wireless/mwifiex/sta_ioctl.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/mwifiex/sta_ioctl.c	2017-12-20 04:05:01.000000000 -0500
@@ -313,6 +313,7 @@ int mwifiex_bss_start(struct mwifiex_pri
 			mwifiex_dbg(adapter, ERROR,
 				    "Attempt to reconnect on csa closed chan(%d)\n",
 				    bss_desc->channel);
+			ret = -1;
 			goto done;
 		}
 
@@ -1097,8 +1098,6 @@ int mwifiex_set_encode(struct mwifiex_pr
 			encrypt_key.is_rx_seq_valid = true;
 		}
 	} else {
-		if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP)
-			return 0;
 		encrypt_key.key_disable = true;
 		if (mac_addr)
 			memcpy(encrypt_key.mac_addr, mac_addr, ETH_ALEN);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/mwl8k.c linux-libre-4.4.107-gnu/drivers/net/wireless/mwl8k.c
--- linux-libre-4.4-gnu/drivers/net/wireless/mwl8k.c	2016-01-10 21:08:53.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/mwl8k.c	2017-12-20 11:32:56.000000000 -0500
@@ -5421,11 +5421,13 @@ static int mwl8k_get_survey(struct ieee8
 
 static int
 mwl8k_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
-		   enum ieee80211_ampdu_mlme_action action,
-		   struct ieee80211_sta *sta, u16 tid, u16 *ssn,
-		   u8 buf_size, bool amsdu)
+		   struct ieee80211_ampdu_params *params)
 {
-
+	struct ieee80211_sta *sta = params->sta;
+	enum ieee80211_ampdu_mlme_action action = params->action;
+	u16 tid = params->tid;
+	u16 *ssn = &params->ssn;
+	u8 buf_size = params->buf_size;
 	int i, rc = 0;
 	struct mwl8k_priv *priv = hw->priv;
 	struct mwl8k_ampdu_stream *stream;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/p54/fwio.c linux-libre-4.4.107-gnu/drivers/net/wireless/p54/fwio.c
--- linux-libre-4.4-gnu/drivers/net/wireless/p54/fwio.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/p54/fwio.c	2017-12-20 04:05:01.000000000 -0500
@@ -488,7 +488,7 @@ int p54_scan(struct p54_common *priv, u1
 
 			entry += sizeof(__le16);
 			chan->pa_points_per_curve = 8;
-			memset(chan->curve_data, 0, sizeof(*chan->curve_data));
+			memset(chan->curve_data, 0, sizeof(chan->curve_data));
 			memcpy(chan->curve_data, entry,
 			       sizeof(struct p54_pa_curve_data_sample) *
 			       min((u8)8, curve_data->points_per_channel));
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.c linux-libre-4.4.107-gnu/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.c
--- linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.c	2016-01-10 21:10:19.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.c	2017-12-20 11:35:56.000000000 -0500
@@ -5370,13 +5370,13 @@ static int rtl8xxxu_set_key(struct ieee8
 
 static int
 rtl8xxxu_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
-		      enum ieee80211_ampdu_mlme_action action,
-		      struct ieee80211_sta *sta, u16 tid, u16 *ssn, u8 buf_size,
-		      bool amsdu)
+		      struct ieee80211_ampdu_params *params)
 {
 	struct rtl8xxxu_priv *priv = hw->priv;
 	struct device *dev = &priv->udev->dev;
 	u8 ampdu_factor, ampdu_density;
+	struct ieee80211_sta *sta = params->sta;
+	enum ieee80211_ampdu_mlme_action action = params->action;
 
 	switch (action) {
 	case IEEE80211_AMPDU_TX_START:
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtlwifi/base.c linux-libre-4.4.107-gnu/drivers/net/wireless/realtek/rtlwifi/base.c
--- linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtlwifi/base.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/realtek/rtlwifi/base.c	2017-12-20 04:05:01.000000000 -0500
@@ -1303,12 +1303,13 @@ EXPORT_SYMBOL_GPL(rtl_action_proc);
 
 static void setup_arp_tx(struct rtl_priv *rtlpriv, struct rtl_ps_ctl *ppsc)
 {
+	struct ieee80211_hw *hw = rtlpriv->hw;
+
 	rtlpriv->ra.is_special_data = true;
 	if (rtlpriv->cfg->ops->get_btc_status())
 		rtlpriv->btcoexist.btc_ops->btc_special_packet_notify(
 					rtlpriv, 1);
-	rtlpriv->enter_ps = false;
-	schedule_work(&rtlpriv->works.lps_change_work);
+	rtl_lps_leave(hw);
 	ppsc->last_delaylps_stamp_jiffies = jiffies;
 }
 
@@ -1381,8 +1382,7 @@ u8 rtl_is_special_data(struct ieee80211_
 
 		if (is_tx) {
 			rtlpriv->ra.is_special_data = true;
-			rtlpriv->enter_ps = false;
-			schedule_work(&rtlpriv->works.lps_change_work);
+			rtl_lps_leave(hw);
 			ppsc->last_delaylps_stamp_jiffies = jiffies;
 		}
 
@@ -1660,9 +1660,9 @@ void rtl_watchdog_wq_callback(void *data
 		if (((rtlpriv->link_info.num_rx_inperiod +
 		      rtlpriv->link_info.num_tx_inperiod) > 8) ||
 		    (rtlpriv->link_info.num_rx_inperiod > 2))
-			rtl_lps_enter(hw);
-		else
 			rtl_lps_leave(hw);
+		else
+			rtl_lps_enter(hw);
 	}
 
 	rtlpriv->link_info.num_rx_inperiod = 0;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c linux-libre-4.4.107-gnu/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c
--- linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c	2017-12-20 04:05:01.000000000 -0500
@@ -1203,7 +1203,6 @@ static void btc8723b2ant_set_ant_path(st
 
 		/* Force GNT_BT to low */
 		btcoexist->btc_write_1byte_bitmask(btcoexist, 0x765, 0x18, 0x0);
-		btcoexist->btc_write_2byte(btcoexist, 0x948, 0x0);
 
 		if (board_info->btdm_ant_pos == BTC_ANTENNA_AT_MAIN_PORT) {
 			/* tell firmware "no antenna inverse" */
@@ -1211,19 +1210,25 @@ static void btc8723b2ant_set_ant_path(st
 			h2c_parameter[1] = 1;  /* ext switch type */
 			btcoexist->btc_fill_h2c(btcoexist, 0x65, 2,
 						h2c_parameter);
+			btcoexist->btc_write_2byte(btcoexist, 0x948, 0x0);
 		} else {
 			/* tell firmware "antenna inverse" */
 			h2c_parameter[0] = 1;
 			h2c_parameter[1] = 1;  /* ext switch type */
 			btcoexist->btc_fill_h2c(btcoexist, 0x65, 2,
 						h2c_parameter);
+			btcoexist->btc_write_2byte(btcoexist, 0x948, 0x280);
 		}
 	}
 
 	/* ext switch setting */
 	if (use_ext_switch) {
 		/* fixed internal switch S1->WiFi, S0->BT */
-		btcoexist->btc_write_2byte(btcoexist, 0x948, 0x0);
+		if (board_info->btdm_ant_pos == BTC_ANTENNA_AT_MAIN_PORT)
+			btcoexist->btc_write_2byte(btcoexist, 0x948, 0x0);
+		else
+			btcoexist->btc_write_2byte(btcoexist, 0x948, 0x280);
+
 		switch (antpos_type) {
 		case BTC_ANT_WIFI_AT_MAIN:
 			/* ext switch main at wifi */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtcoutsrc.c linux-libre-4.4.107-gnu/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtcoutsrc.c
--- linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtcoutsrc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtcoutsrc.c	2017-12-20 04:05:01.000000000 -0500
@@ -965,13 +965,38 @@ void exhalbtc_set_chip_type(u8 chip_type
 	}
 }
 
-void exhalbtc_set_ant_num(u8 type, u8 ant_num)
+void exhalbtc_set_ant_num(struct rtl_priv *rtlpriv, u8 type, u8 ant_num)
 {
 	if (BT_COEX_ANT_TYPE_PG == type) {
 		gl_bt_coexist.board_info.pg_ant_num = ant_num;
 		gl_bt_coexist.board_info.btdm_ant_num = ant_num;
+		/* The antenna position:
+		 * Main (default) or Aux for pgAntNum=2 && btdmAntNum =1.
+		 * The antenna position should be determined by
+		 * auto-detect mechanism.
+		 * The following is assumed to main,
+		 * and those must be modified
+		 * if y auto-detect mechanism is ready
+		 */
+		if ((gl_bt_coexist.board_info.pg_ant_num == 2) &&
+		    (gl_bt_coexist.board_info.btdm_ant_num == 1))
+			gl_bt_coexist.board_info.btdm_ant_pos =
+						       BTC_ANTENNA_AT_MAIN_PORT;
+		else
+			gl_bt_coexist.board_info.btdm_ant_pos =
+						       BTC_ANTENNA_AT_MAIN_PORT;
 	} else if (BT_COEX_ANT_TYPE_ANTDIV == type) {
 		gl_bt_coexist.board_info.btdm_ant_num = ant_num;
+		gl_bt_coexist.board_info.btdm_ant_pos =
+						       BTC_ANTENNA_AT_MAIN_PORT;
+	} else if (type == BT_COEX_ANT_TYPE_DETECTED) {
+		gl_bt_coexist.board_info.btdm_ant_num = ant_num;
+		if (rtlpriv->cfg->mod_params->ant_sel == 1)
+			gl_bt_coexist.board_info.btdm_ant_pos =
+				BTC_ANTENNA_AT_AUX_PORT;
+		else
+			gl_bt_coexist.board_info.btdm_ant_pos =
+				BTC_ANTENNA_AT_MAIN_PORT;
 	}
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtcoutsrc.h linux-libre-4.4.107-gnu/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtcoutsrc.h
--- linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtcoutsrc.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtcoutsrc.h	2017-12-20 04:05:01.000000000 -0500
@@ -535,7 +535,7 @@ void exhalbtc_set_bt_patch_version(u16 b
 void exhalbtc_update_min_bt_rssi(char bt_rssi);
 void exhalbtc_set_bt_exist(bool bt_exist);
 void exhalbtc_set_chip_type(u8 chip_type);
-void exhalbtc_set_ant_num(u8 type, u8 ant_num);
+void exhalbtc_set_ant_num(struct rtl_priv *rtlpriv, u8 type, u8 ant_num);
 void exhalbtc_display_bt_coex_info(struct btc_coexist *btcoexist);
 void exhalbtc_signal_compensation(struct btc_coexist *btcoexist,
 				  u8 *rssi_wifi, u8 *rssi_bt);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtlwifi/btcoexist/rtl_btc.c linux-libre-4.4.107-gnu/drivers/net/wireless/realtek/rtlwifi/btcoexist/rtl_btc.c
--- linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtlwifi/btcoexist/rtl_btc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/realtek/rtlwifi/btcoexist/rtl_btc.c	2017-12-20 04:05:01.000000000 -0500
@@ -72,7 +72,10 @@ void rtl_btc_init_hal_vars(struct rtl_pr
 		 __func__, bt_type);
 	exhalbtc_set_chip_type(bt_type);
 
-	exhalbtc_set_ant_num(BT_COEX_ANT_TYPE_PG, ant_num);
+	if (rtlpriv->cfg->mod_params->ant_sel == 1)
+		exhalbtc_set_ant_num(rtlpriv, BT_COEX_ANT_TYPE_DETECTED, 1);
+	else
+		exhalbtc_set_ant_num(rtlpriv, BT_COEX_ANT_TYPE_PG, ant_num);
 }
 
 void rtl_btc_init_hw_config(struct rtl_priv *rtlpriv)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtlwifi/core.c linux-libre-4.4.107-gnu/drivers/net/wireless/realtek/rtlwifi/core.c
--- linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtlwifi/core.c	2016-01-10 21:10:19.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/realtek/rtlwifi/core.c	2017-12-20 11:35:57.000000000 -0500
@@ -1153,10 +1153,8 @@ static void rtl_op_bss_info_changed(stru
 		} else {
 			mstatus = RT_MEDIA_DISCONNECT;
 
-			if (mac->link_state == MAC80211_LINKED) {
-				rtlpriv->enter_ps = false;
-				schedule_work(&rtlpriv->works.lps_change_work);
-			}
+			if (mac->link_state == MAC80211_LINKED)
+				rtl_lps_leave(hw);
 			if (ppsc->p2p_ps_info.p2p_ps_mode > P2P_PS_NONE)
 				rtl_p2p_ps_cmd(hw, P2P_PS_DISABLE);
 			mac->link_state = MAC80211_NOLINK;
@@ -1371,11 +1369,13 @@ static void rtl_op_sta_notify(struct iee
 
 static int rtl_op_ampdu_action(struct ieee80211_hw *hw,
 			       struct ieee80211_vif *vif,
-			       enum ieee80211_ampdu_mlme_action action,
-			       struct ieee80211_sta *sta, u16 tid, u16 *ssn,
-			       u8 buf_size, bool amsdu)
+			       struct ieee80211_ampdu_params *params)
 {
 	struct rtl_priv *rtlpriv = rtl_priv(hw);
+	struct ieee80211_sta *sta = params->sta;
+	enum ieee80211_ampdu_mlme_action action = params->action;
+	u16 tid = params->tid;
+	u16 *ssn = &params->ssn;
 
 	switch (action) {
 	case IEEE80211_AMPDU_TX_START:
@@ -1432,8 +1432,7 @@ static void rtl_op_sw_scan_start(struct
 	}
 
 	if (mac->link_state == MAC80211_LINKED) {
-		rtlpriv->enter_ps = false;
-		schedule_work(&rtlpriv->works.lps_change_work);
+		rtl_lps_leave(hw);
 		mac->link_state = MAC80211_LINKED_SCANNING;
 	} else {
 		rtl_ips_nic_on(hw);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtlwifi/pci.c linux-libre-4.4.107-gnu/drivers/net/wireless/realtek/rtlwifi/pci.c
--- linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtlwifi/pci.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/realtek/rtlwifi/pci.c	2017-12-20 04:05:01.000000000 -0500
@@ -664,11 +664,9 @@ tx_status_ok:
 	}
 
 	if (((rtlpriv->link_info.num_rx_inperiod +
-		rtlpriv->link_info.num_tx_inperiod) > 8) ||
-		(rtlpriv->link_info.num_rx_inperiod > 2)) {
-		rtlpriv->enter_ps = false;
-		schedule_work(&rtlpriv->works.lps_change_work);
-	}
+	      rtlpriv->link_info.num_tx_inperiod) > 8) ||
+	      (rtlpriv->link_info.num_rx_inperiod > 2))
+		rtl_lps_leave(hw);
 }
 
 static int _rtl_pci_init_one_rxdesc(struct ieee80211_hw *hw,
@@ -801,7 +799,9 @@ static void _rtl_pci_rx_interrupt(struct
 								      hw_queue);
 			if (rx_remained_cnt == 0)
 				return;
-
+			buffer_desc = &rtlpci->rx_ring[rxring_idx].buffer_desc[
+				rtlpci->rx_ring[rxring_idx].idx];
+			pdesc = (struct rtl_rx_desc *)skb->data;
 		} else {	/* rx descriptor */
 			pdesc = &rtlpci->rx_ring[rxring_idx].desc[
 				rtlpci->rx_ring[rxring_idx].idx];
@@ -824,13 +824,6 @@ static void _rtl_pci_rx_interrupt(struct
 		new_skb = dev_alloc_skb(rtlpci->rxbuffersize);
 		if (unlikely(!new_skb))
 			goto no_new;
-		if (rtlpriv->use_new_trx_flow) {
-			buffer_desc =
-			  &rtlpci->rx_ring[rxring_idx].buffer_desc
-				[rtlpci->rx_ring[rxring_idx].idx];
-			/*means rx wifi info*/
-			pdesc = (struct rtl_rx_desc *)skb->data;
-		}
 		memset(&rx_status , 0 , sizeof(rx_status));
 		rtlpriv->cfg->ops->query_rx_desc(hw, &stats,
 						 &rx_status, (u8 *)pdesc, skb);
@@ -924,10 +917,8 @@ new_trx_end:
 		}
 		if (((rtlpriv->link_info.num_rx_inperiod +
 		      rtlpriv->link_info.num_tx_inperiod) > 8) ||
-		      (rtlpriv->link_info.num_rx_inperiod > 2)) {
-			rtlpriv->enter_ps = false;
-			schedule_work(&rtlpriv->works.lps_change_work);
-		}
+		      (rtlpriv->link_info.num_rx_inperiod > 2))
+			rtl_lps_leave(hw);
 		skb = new_skb;
 no_new:
 		if (rtlpriv->use_new_trx_flow) {
@@ -1578,7 +1569,7 @@ int rtl_pci_reset_trx_ring(struct ieee80
 							 true,
 							 HW_DESC_TXBUFF_ADDR),
 						 skb->len, PCI_DMA_TODEVICE);
-				kfree_skb(skb);
+				dev_kfree_skb_irq(skb);
 				ring->idx = (ring->idx + 1) % ring->entries;
 			}
 			ring->idx = 0;
@@ -2278,7 +2269,7 @@ int rtl_pci_probe(struct pci_dev *pdev,
 	/* find adapter */
 	if (!_rtl_pci_find_adapter(pdev, hw)) {
 		err = -ENODEV;
-		goto fail3;
+		goto fail2;
 	}
 
 	/* Init IO handler */
@@ -2348,10 +2339,10 @@ fail3:
 	pci_set_drvdata(pdev, NULL);
 	rtl_deinit_core(hw);
 
+fail2:
 	if (rtlpriv->io.pci_mem_start != 0)
 		pci_iounmap(pdev, (void __iomem *)rtlpriv->io.pci_mem_start);
 
-fail2:
 	pci_release_regions(pdev);
 	complete(&rtlpriv->firmware_loading_complete);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtlwifi/pci.h linux-libre-4.4.107-gnu/drivers/net/wireless/realtek/rtlwifi/pci.h
--- linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtlwifi/pci.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/realtek/rtlwifi/pci.h	2017-12-20 04:05:01.000000000 -0500
@@ -275,10 +275,10 @@ struct mp_adapter {
 };
 
 struct rtl_pci_priv {
+	struct bt_coexist_info bt_coexist;
+	struct rtl_led_ctl ledctl;
 	struct rtl_pci dev;
 	struct mp_adapter ndis_adapter;
-	struct rtl_led_ctl ledctl;
-	struct bt_coexist_info bt_coexist;
 };
 
 #define rtl_pcipriv(hw)		(((struct rtl_pci_priv *)(rtl_priv(hw))->priv))
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtlwifi/ps.c linux-libre-4.4.107-gnu/drivers/net/wireless/realtek/rtlwifi/ps.c
--- linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtlwifi/ps.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/realtek/rtlwifi/ps.c	2017-12-20 04:05:01.000000000 -0500
@@ -414,8 +414,8 @@ void rtl_lps_set_psmode(struct ieee80211
 	}
 }
 
-/*Enter the leisure power save mode.*/
-void rtl_lps_enter(struct ieee80211_hw *hw)
+/* Interrupt safe routine to enter the leisure power save mode.*/
+static void rtl_lps_enter_core(struct ieee80211_hw *hw)
 {
 	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 	struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
@@ -455,10 +455,9 @@ void rtl_lps_enter(struct ieee80211_hw *
 
 	spin_unlock_irqrestore(&rtlpriv->locks.lps_lock, flag);
 }
-EXPORT_SYMBOL(rtl_lps_enter);
 
-/*Leave the leisure power save mode.*/
-void rtl_lps_leave(struct ieee80211_hw *hw)
+/* Interrupt safe routine to leave the leisure power save mode.*/
+static void rtl_lps_leave_core(struct ieee80211_hw *hw)
 {
 	struct rtl_priv *rtlpriv = rtl_priv(hw);
 	struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
@@ -488,7 +487,6 @@ void rtl_lps_leave(struct ieee80211_hw *
 	}
 	spin_unlock_irqrestore(&rtlpriv->locks.lps_lock, flag);
 }
-EXPORT_SYMBOL(rtl_lps_leave);
 
 /* For sw LPS*/
 void rtl_swlps_beacon(struct ieee80211_hw *hw, void *data, unsigned int len)
@@ -681,12 +679,34 @@ void rtl_lps_change_work_callback(struct
 	struct rtl_priv *rtlpriv = rtl_priv(hw);
 
 	if (rtlpriv->enter_ps)
-		rtl_lps_enter(hw);
+		rtl_lps_enter_core(hw);
 	else
-		rtl_lps_leave(hw);
+		rtl_lps_leave_core(hw);
 }
 EXPORT_SYMBOL_GPL(rtl_lps_change_work_callback);
 
+void rtl_lps_enter(struct ieee80211_hw *hw)
+{
+	struct rtl_priv *rtlpriv = rtl_priv(hw);
+
+	if (!in_interrupt())
+		return rtl_lps_enter_core(hw);
+	rtlpriv->enter_ps = true;
+	schedule_work(&rtlpriv->works.lps_change_work);
+}
+EXPORT_SYMBOL_GPL(rtl_lps_enter);
+
+void rtl_lps_leave(struct ieee80211_hw *hw)
+{
+	struct rtl_priv *rtlpriv = rtl_priv(hw);
+
+	if (!in_interrupt())
+		return rtl_lps_leave_core(hw);
+	rtlpriv->enter_ps = false;
+	schedule_work(&rtlpriv->works.lps_change_work);
+}
+EXPORT_SYMBOL_GPL(rtl_lps_leave);
+
 void rtl_swlps_wq_callback(void *data)
 {
 	struct rtl_works *rtlworks = container_of_dwork_rtl(data,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtlwifi/regd.c linux-libre-4.4.107-gnu/drivers/net/wireless/realtek/rtlwifi/regd.c
--- linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtlwifi/regd.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/realtek/rtlwifi/regd.c	2017-12-20 04:05:01.000000000 -0500
@@ -345,13 +345,12 @@ static const struct ieee80211_regdomain
 		return &rtl_regdom_no_midband;
 	case COUNTRY_CODE_IC:
 		return &rtl_regdom_11;
-	case COUNTRY_CODE_ETSI:
 	case COUNTRY_CODE_TELEC_NETGEAR:
 		return &rtl_regdom_60_64;
+	case COUNTRY_CODE_ETSI:
 	case COUNTRY_CODE_SPAIN:
 	case COUNTRY_CODE_FRANCE:
 	case COUNTRY_CODE_ISRAEL:
-	case COUNTRY_CODE_WORLD_WIDE_13:
 		return &rtl_regdom_12_13;
 	case COUNTRY_CODE_MKK:
 	case COUNTRY_CODE_MKK1:
@@ -360,6 +359,7 @@ static const struct ieee80211_regdomain
 		return &rtl_regdom_14_60_64;
 	case COUNTRY_CODE_GLOBAL_DOMAIN:
 		return &rtl_regdom_14;
+	case COUNTRY_CODE_WORLD_WIDE_13:
 	case COUNTRY_CODE_WORLD_WIDE_13_5G_ALL:
 		return &rtl_regdom_12_13_5g_all;
 	default:
@@ -406,6 +406,8 @@ static u8 channel_plan_to_country_code(u
 		return COUNTRY_CODE_WORLD_WIDE_13;
 	case 0x22:
 		return COUNTRY_CODE_IC;
+	case 0x25:
+		return COUNTRY_CODE_ETSI;
 	case 0x32:
 		return COUNTRY_CODE_TELEC_NETGEAR;
 	case 0x41:
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8188ee/sw.c linux-libre-4.4.107-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8188ee/sw.c
--- linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8188ee/sw.c	2016-01-10 21:10:21.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8188ee/sw.c	2017-12-20 11:36:02.000000000 -0500
@@ -88,8 +88,6 @@ int rtl88e_init_sw_vars(struct ieee80211
 	u8 tid;
 
 	rtl8188ee_bt_reg_init(hw);
-	rtlpci->msi_support = rtlpriv->cfg->mod_params->msi_support;
-
 	rtlpriv->dm.dm_initialgain_enable = 1;
 	rtlpriv->dm.dm_flag = 0;
 	rtlpriv->dm.disable_framebursting = 0;
@@ -138,6 +136,11 @@ int rtl88e_init_sw_vars(struct ieee80211
 	rtlpriv->psc.inactiveps = rtlpriv->cfg->mod_params->inactiveps;
 	rtlpriv->psc.swctrl_lps = rtlpriv->cfg->mod_params->swctrl_lps;
 	rtlpriv->psc.fwctrl_lps = rtlpriv->cfg->mod_params->fwctrl_lps;
+	rtlpci->msi_support = rtlpriv->cfg->mod_params->msi_support;
+	rtlpriv->cfg->mod_params->sw_crypto =
+		rtlpriv->cfg->mod_params->sw_crypto;
+	rtlpriv->cfg->mod_params->disable_watchdog =
+		rtlpriv->cfg->mod_params->disable_watchdog;
 	if (rtlpriv->cfg->mod_params->disable_watchdog)
 		pr_info("watchdog disabled\n");
 	if (!rtlpriv->psc.inactiveps)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8192ce/sw.c linux-libre-4.4.107-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8192ce/sw.c
--- linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8192ce/sw.c	2016-01-10 21:10:29.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8192ce/sw.c	2017-12-20 11:36:14.000000000 -0500
@@ -139,6 +139,8 @@ int rtl92c_init_sw_vars(struct ieee80211
 	rtlpriv->psc.inactiveps = rtlpriv->cfg->mod_params->inactiveps;
 	rtlpriv->psc.swctrl_lps = rtlpriv->cfg->mod_params->swctrl_lps;
 	rtlpriv->psc.fwctrl_lps = rtlpriv->cfg->mod_params->fwctrl_lps;
+	rtlpriv->cfg->mod_params->sw_crypto =
+		rtlpriv->cfg->mod_params->sw_crypto;
 	if (!rtlpriv->psc.inactiveps)
 		pr_info("rtl8192ce: Power Save off (module option)\n");
 	if (!rtlpriv->psc.fwctrl_lps)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8192cu/sw.c linux-libre-4.4.107-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8192cu/sw.c
--- linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8192cu/sw.c	2016-01-10 21:10:31.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8192cu/sw.c	2017-12-20 11:36:19.000000000 -0500
@@ -62,6 +62,8 @@ static int rtl92cu_init_sw_vars(struct i
 	rtlpriv->dm.disable_framebursting = false;
 	rtlpriv->dm.thermalvalue = 0;
 	rtlpriv->dbg.global_debuglevel = rtlpriv->cfg->mod_params->debug;
+	rtlpriv->cfg->mod_params->sw_crypto =
+		rtlpriv->cfg->mod_params->sw_crypto;
 
 	/* for firmware buf */
 	rtlpriv->rtlhal.pfirmware = vzalloc(0x4000);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8192de/sw.c linux-libre-4.4.107-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8192de/sw.c
--- linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8192de/sw.c	2016-01-10 21:10:33.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8192de/sw.c	2017-12-20 11:36:24.000000000 -0500
@@ -376,8 +376,8 @@ module_param_named(swlps, rtl92de_mod_pa
 module_param_named(fwlps, rtl92de_mod_params.fwctrl_lps, bool, 0444);
 MODULE_PARM_DESC(swenc, "Set to 1 for software crypto (default 0)\n");
 MODULE_PARM_DESC(ips, "Set to 0 to not use link power save (default 1)\n");
-MODULE_PARM_DESC(swlps, "Set to 1 to use SW control power save (default 0)\n");
-MODULE_PARM_DESC(fwlps, "Set to 1 to use FW control power save (default 1)\n");
+MODULE_PARM_DESC(swlps, "Set to 1 to use SW control power save (default 1)\n");
+MODULE_PARM_DESC(fwlps, "Set to 1 to use FW control power save (default 0)\n");
 MODULE_PARM_DESC(debug, "Set debug level (0-5) (default 0)");
 
 static SIMPLE_DEV_PM_OPS(rtlwifi_pm_ops, rtl_pci_suspend, rtl_pci_resume);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8192ee/fw.c linux-libre-4.4.107-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8192ee/fw.c
--- linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8192ee/fw.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8192ee/fw.c	2017-12-20 04:05:01.000000000 -0500
@@ -664,7 +664,7 @@ void rtl92ee_set_fw_rsvdpagepkt(struct i
 	struct rtl_priv *rtlpriv = rtl_priv(hw);
 	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 	struct sk_buff *skb = NULL;
-
+	bool rtstatus;
 	u32 totalpacketlen;
 	u8 u1rsvdpageloc[5] = { 0 };
 	bool b_dlok = false;
@@ -727,7 +727,9 @@ void rtl92ee_set_fw_rsvdpagepkt(struct i
 	memcpy((u8 *)skb_put(skb, totalpacketlen),
 	       &reserved_page_packet, totalpacketlen);
 
-	b_dlok = true;
+	rtstatus = rtl_cmd_send_packet(hw, skb);
+	if (rtstatus)
+		b_dlok = true;
 
 	if (b_dlok) {
 		RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD ,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8192ee/hw.c linux-libre-4.4.107-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8192ee/hw.c
--- linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8192ee/hw.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8192ee/hw.c	2017-12-20 04:05:01.000000000 -0500
@@ -1003,7 +1003,7 @@ static void _rtl92ee_hw_configure(struct
 	rtl_write_word(rtlpriv, REG_SIFS_TRX, 0x100a);
 
 	/* Note Data sheet don't define */
-	rtl_write_word(rtlpriv, 0x4C7, 0x80);
+	rtl_write_byte(rtlpriv, 0x4C7, 0x80);
 
 	rtl_write_byte(rtlpriv, REG_RX_PKT_LIMIT, 0x20);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8192se/sw.c linux-libre-4.4.107-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8192se/sw.c
--- linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8192se/sw.c	2016-01-10 21:10:36.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8192se/sw.c	2017-12-20 11:36:29.000000000 -0500
@@ -187,6 +187,8 @@ static int rtl92s_init_sw_vars(struct ie
 	rtlpriv->psc.inactiveps = rtlpriv->cfg->mod_params->inactiveps;
 	rtlpriv->psc.swctrl_lps = rtlpriv->cfg->mod_params->swctrl_lps;
 	rtlpriv->psc.fwctrl_lps = rtlpriv->cfg->mod_params->fwctrl_lps;
+	rtlpriv->cfg->mod_params->sw_crypto =
+		rtlpriv->cfg->mod_params->sw_crypto;
 	if (!rtlpriv->psc.inactiveps)
 		pr_info("Power Save off (module option)\n");
 	if (!rtlpriv->psc.fwctrl_lps)
@@ -425,8 +427,8 @@ module_param_named(swlps, rtl92se_mod_pa
 module_param_named(fwlps, rtl92se_mod_params.fwctrl_lps, bool, 0444);
 MODULE_PARM_DESC(swenc, "Set to 1 for software crypto (default 0)\n");
 MODULE_PARM_DESC(ips, "Set to 0 to not use link power save (default 1)\n");
-MODULE_PARM_DESC(swlps, "Set to 1 to use SW control power save (default 0)\n");
-MODULE_PARM_DESC(fwlps, "Set to 1 to use FW control power save (default 1)\n");
+MODULE_PARM_DESC(swlps, "Set to 1 to use SW control power save (default 1)\n");
+MODULE_PARM_DESC(fwlps, "Set to 1 to use FW control power save (default 0)\n");
 MODULE_PARM_DESC(debug, "Set debug level (0-5) (default 0)");
 
 static SIMPLE_DEV_PM_OPS(rtlwifi_pm_ops, rtl_pci_suspend, rtl_pci_resume);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8723ae/sw.c linux-libre-4.4.107-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8723ae/sw.c
--- linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8723ae/sw.c	2016-01-10 21:10:51.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8723ae/sw.c	2017-12-20 11:37:01.000000000 -0500
@@ -150,6 +150,11 @@ int rtl8723e_init_sw_vars(struct ieee802
 	rtlpriv->psc.inactiveps = rtlpriv->cfg->mod_params->inactiveps;
 	rtlpriv->psc.swctrl_lps = rtlpriv->cfg->mod_params->swctrl_lps;
 	rtlpriv->psc.fwctrl_lps = rtlpriv->cfg->mod_params->fwctrl_lps;
+	rtlpci->msi_support = rtlpriv->cfg->mod_params->msi_support;
+	rtlpriv->cfg->mod_params->sw_crypto =
+		rtlpriv->cfg->mod_params->sw_crypto;
+	rtlpriv->cfg->mod_params->disable_watchdog =
+		rtlpriv->cfg->mod_params->disable_watchdog;
 	if (rtlpriv->cfg->mod_params->disable_watchdog)
 		pr_info("watchdog disabled\n");
 	rtlpriv->psc.reg_fwctrl_lps = 3;
@@ -267,6 +272,8 @@ static struct rtl_mod_params rtl8723e_mo
 	.swctrl_lps = false,
 	.fwctrl_lps = true,
 	.debug = DBG_EMERG,
+	.msi_support = false,
+	.disable_watchdog = false,
 };
 
 static struct rtl_hal_cfg rtl8723e_hal_cfg = {
@@ -383,12 +390,14 @@ module_param_named(debug, rtl8723e_mod_p
 module_param_named(ips, rtl8723e_mod_params.inactiveps, bool, 0444);
 module_param_named(swlps, rtl8723e_mod_params.swctrl_lps, bool, 0444);
 module_param_named(fwlps, rtl8723e_mod_params.fwctrl_lps, bool, 0444);
+module_param_named(msi, rtl8723e_mod_params.msi_support, bool, 0444);
 module_param_named(disable_watchdog, rtl8723e_mod_params.disable_watchdog,
 		   bool, 0444);
 MODULE_PARM_DESC(swenc, "Set to 1 for software crypto (default 0)\n");
 MODULE_PARM_DESC(ips, "Set to 0 to not use link power save (default 1)\n");
 MODULE_PARM_DESC(swlps, "Set to 1 to use SW control power save (default 0)\n");
 MODULE_PARM_DESC(fwlps, "Set to 1 to use FW control power save (default 1)\n");
+MODULE_PARM_DESC(msi, "Set to 1 to use MSI interrupts mode (default 0)\n");
 MODULE_PARM_DESC(debug, "Set debug level (0-5) (default 0)");
 MODULE_PARM_DESC(disable_watchdog, "Set to 1 to disable the watchdog (default 0)\n");
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8723be/hw.c linux-libre-4.4.107-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8723be/hw.c
--- linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8723be/hw.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8723be/hw.c	2017-12-20 04:05:01.000000000 -0500
@@ -2684,6 +2684,7 @@ void rtl8723be_read_bt_coexist_info_from
 					      bool auto_load_fail, u8 *hwinfo)
 {
 	struct rtl_priv *rtlpriv = rtl_priv(hw);
+	struct rtl_mod_params *mod_params = rtlpriv->cfg->mod_params;
 	u8 value;
 	u32 tmpu_32;
 
@@ -2702,6 +2703,10 @@ void rtl8723be_read_bt_coexist_info_from
 		rtlpriv->btcoexist.btc_info.ant_num = ANT_X2;
 	}
 
+	/* override ant_num / ant_path */
+	if (mod_params->ant_sel)
+		rtlpriv->btcoexist.btc_info.ant_num =
+			(mod_params->ant_sel == 1 ? ANT_X2 : ANT_X1);
 }
 
 void rtl8723be_bt_reg_init(struct ieee80211_hw *hw)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8723be/sw.c linux-libre-4.4.107-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8723be/sw.c
--- linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8723be/sw.c	2016-01-10 21:11:00.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8723be/sw.c	2017-12-20 11:37:19.000000000 -0500
@@ -93,7 +93,6 @@ int rtl8723be_init_sw_vars(struct ieee80
 	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 
 	rtl8723be_bt_reg_init(hw);
-	rtlpci->msi_support = rtlpriv->cfg->mod_params->msi_support;
 	rtlpriv->btcoexist.btc_ops = rtl_btc_get_ops_pointer();
 
 	rtlpriv->dm.dm_initialgain_enable = 1;
@@ -151,6 +150,10 @@ int rtl8723be_init_sw_vars(struct ieee80
 	rtlpriv->psc.swctrl_lps = rtlpriv->cfg->mod_params->swctrl_lps;
 	rtlpriv->psc.fwctrl_lps = rtlpriv->cfg->mod_params->fwctrl_lps;
 	rtlpci->msi_support = rtlpriv->cfg->mod_params->msi_support;
+	rtlpriv->cfg->mod_params->sw_crypto =
+		 rtlpriv->cfg->mod_params->sw_crypto;
+	rtlpriv->cfg->mod_params->disable_watchdog =
+		 rtlpriv->cfg->mod_params->disable_watchdog;
 	if (rtlpriv->cfg->mod_params->disable_watchdog)
 		pr_info("watchdog disabled\n");
 	rtlpriv->psc.reg_fwctrl_lps = 3;
@@ -267,6 +270,10 @@ static struct rtl_mod_params rtl8723be_m
 	.inactiveps = true,
 	.swctrl_lps = false,
 	.fwctrl_lps = true,
+	.msi_support = false,
+	.disable_watchdog = false,
+	.debug = DBG_EMERG,
+	.ant_sel = 0,
 };
 
 static struct rtl_hal_cfg rtl8723be_hal_cfg = {
@@ -388,6 +395,7 @@ module_param_named(fwlps, rtl8723be_mod_
 module_param_named(msi, rtl8723be_mod_params.msi_support, bool, 0444);
 module_param_named(disable_watchdog, rtl8723be_mod_params.disable_watchdog,
 		   bool, 0444);
+module_param_named(ant_sel, rtl8723be_mod_params.ant_sel, int, 0444);
 MODULE_PARM_DESC(swenc, "Set to 1 for software crypto (default 0)\n");
 MODULE_PARM_DESC(ips, "Set to 0 to not use link power save (default 1)\n");
 MODULE_PARM_DESC(swlps, "Set to 1 to use SW control power save (default 0)\n");
@@ -396,6 +404,7 @@ MODULE_PARM_DESC(msi, "Set to 1 to use M
 MODULE_PARM_DESC(debug, "Set debug level (0-5) (default 0)");
 MODULE_PARM_DESC(disable_watchdog,
 		 "Set to 1 to disable the watchdog (default 0)\n");
+MODULE_PARM_DESC(ant_sel, "Set to 1 or 2 to force antenna number (default 0)\n");
 
 static SIMPLE_DEV_PM_OPS(rtlwifi_pm_ops, rtl_pci_suspend, rtl_pci_resume);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/hw.c linux-libre-4.4.107-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/hw.c
--- linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/hw.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/hw.c	2017-12-20 04:05:01.000000000 -0500
@@ -1377,6 +1377,7 @@ static void _rtl8821ae_get_wakeup_reason
 
 	ppsc->wakeup_reason = 0;
 
+	do_gettimeofday(&ts);
 	rtlhal->last_suspend_sec = ts.tv_sec;
 
 	switch (fw_reason) {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/phy.c linux-libre-4.4.107-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/phy.c
--- linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/phy.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/phy.c	2017-12-20 04:05:01.000000000 -0500
@@ -359,6 +359,107 @@ bool rtl8821ae_phy_rf_config(struct ieee
 	return rtl8821ae_phy_rf6052_config(hw);
 }
 
+static void _rtl8812ae_phy_set_rfe_reg_24g(struct ieee80211_hw *hw)
+{
+	struct rtl_priv *rtlpriv = rtl_priv(hw);
+	struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
+	u8 tmp;
+
+	switch (rtlhal->rfe_type) {
+	case 3:
+		rtl_set_bbreg(hw, RA_RFE_PINMUX, BMASKDWORD, 0x54337770);
+		rtl_set_bbreg(hw, RB_RFE_PINMUX, BMASKDWORD, 0x54337770);
+		rtl_set_bbreg(hw, RA_RFE_INV, BMASKRFEINV, 0x010);
+		rtl_set_bbreg(hw, RB_RFE_INV, BMASKRFEINV, 0x010);
+		rtl_set_bbreg(hw, 0x900, 0x00000303, 0x1);
+		break;
+	case 4:
+		rtl_set_bbreg(hw, RA_RFE_PINMUX, BMASKDWORD, 0x77777777);
+		rtl_set_bbreg(hw, RB_RFE_PINMUX, BMASKDWORD, 0x77777777);
+		rtl_set_bbreg(hw, RA_RFE_INV, BMASKRFEINV, 0x001);
+		rtl_set_bbreg(hw, RB_RFE_INV, BMASKRFEINV, 0x001);
+		break;
+	case 5:
+		rtl_write_byte(rtlpriv, RA_RFE_PINMUX + 2, 0x77);
+		rtl_set_bbreg(hw, RB_RFE_PINMUX, BMASKDWORD, 0x77777777);
+		tmp = rtl_read_byte(rtlpriv, RA_RFE_INV + 3);
+		rtl_write_byte(rtlpriv, RA_RFE_INV + 3, tmp & ~0x1);
+		rtl_set_bbreg(hw, RB_RFE_INV, BMASKRFEINV, 0x000);
+		break;
+	case 1:
+		if (rtlpriv->btcoexist.bt_coexistence) {
+			rtl_set_bbreg(hw, RA_RFE_PINMUX, 0xffffff, 0x777777);
+			rtl_set_bbreg(hw, RB_RFE_PINMUX, BMASKDWORD,
+				      0x77777777);
+			rtl_set_bbreg(hw, RA_RFE_INV, 0x33f00000, 0x000);
+			rtl_set_bbreg(hw, RB_RFE_INV, BMASKRFEINV, 0x000);
+			break;
+		}
+	case 0:
+	case 2:
+	default:
+		rtl_set_bbreg(hw, RA_RFE_PINMUX, BMASKDWORD, 0x77777777);
+		rtl_set_bbreg(hw, RB_RFE_PINMUX, BMASKDWORD, 0x77777777);
+		rtl_set_bbreg(hw, RA_RFE_INV, BMASKRFEINV, 0x000);
+		rtl_set_bbreg(hw, RB_RFE_INV, BMASKRFEINV, 0x000);
+		break;
+	}
+}
+
+static void _rtl8812ae_phy_set_rfe_reg_5g(struct ieee80211_hw *hw)
+{
+	struct rtl_priv *rtlpriv = rtl_priv(hw);
+	struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
+	u8 tmp;
+
+	switch (rtlhal->rfe_type) {
+	case 0:
+		rtl_set_bbreg(hw, RA_RFE_PINMUX, BMASKDWORD, 0x77337717);
+		rtl_set_bbreg(hw, RB_RFE_PINMUX, BMASKDWORD, 0x77337717);
+		rtl_set_bbreg(hw, RA_RFE_INV, BMASKRFEINV, 0x010);
+		rtl_set_bbreg(hw, RB_RFE_INV, BMASKRFEINV, 0x010);
+		break;
+	case 1:
+		if (rtlpriv->btcoexist.bt_coexistence) {
+			rtl_set_bbreg(hw, RA_RFE_PINMUX, 0xffffff, 0x337717);
+			rtl_set_bbreg(hw, RB_RFE_PINMUX, BMASKDWORD,
+				      0x77337717);
+			rtl_set_bbreg(hw, RA_RFE_INV, 0x33f00000, 0x000);
+			rtl_set_bbreg(hw, RB_RFE_INV, BMASKRFEINV, 0x000);
+		} else {
+			rtl_set_bbreg(hw, RA_RFE_PINMUX, BMASKDWORD,
+				      0x77337717);
+			rtl_set_bbreg(hw, RB_RFE_PINMUX, BMASKDWORD,
+				      0x77337717);
+			rtl_set_bbreg(hw, RA_RFE_INV, BMASKRFEINV, 0x000);
+			rtl_set_bbreg(hw, RB_RFE_INV, BMASKRFEINV, 0x000);
+		}
+		break;
+	case 3:
+		rtl_set_bbreg(hw, RA_RFE_PINMUX, BMASKDWORD, 0x54337717);
+		rtl_set_bbreg(hw, RB_RFE_PINMUX, BMASKDWORD, 0x54337717);
+		rtl_set_bbreg(hw, RA_RFE_INV, BMASKRFEINV, 0x010);
+		rtl_set_bbreg(hw, RB_RFE_INV, BMASKRFEINV, 0x010);
+		rtl_set_bbreg(hw, 0x900, 0x00000303, 0x1);
+		break;
+	case 5:
+		rtl_write_byte(rtlpriv, RA_RFE_PINMUX + 2, 0x33);
+		rtl_set_bbreg(hw, RB_RFE_PINMUX, BMASKDWORD, 0x77337777);
+		tmp = rtl_read_byte(rtlpriv, RA_RFE_INV + 3);
+		rtl_write_byte(rtlpriv, RA_RFE_INV + 3, tmp | 0x1);
+		rtl_set_bbreg(hw, RB_RFE_INV, BMASKRFEINV, 0x010);
+		break;
+	case 2:
+	case 4:
+	default:
+		rtl_set_bbreg(hw, RA_RFE_PINMUX, BMASKDWORD, 0x77337777);
+		rtl_set_bbreg(hw, RB_RFE_PINMUX, BMASKDWORD, 0x77337777);
+		rtl_set_bbreg(hw, RA_RFE_INV, BMASKRFEINV, 0x010);
+		rtl_set_bbreg(hw, RB_RFE_INV, BMASKRFEINV, 0x010);
+		break;
+	}
+}
+
 u32 phy_get_tx_swing_8812A(struct ieee80211_hw *hw, u8	band,
 			   u8 rf_path)
 {
@@ -553,14 +654,9 @@ void rtl8821ae_phy_switch_wirelessband(s
 			/* 0x82C[1:0] = 2b'00 */
 			rtl_set_bbreg(hw, 0x82c, 0x3, 0);
 		}
-		if (rtlhal->hw_type == HARDWARE_TYPE_RTL8812AE) {
-			rtl_set_bbreg(hw, RA_RFE_PINMUX, BMASKDWORD,
-				      0x77777777);
-			rtl_set_bbreg(hw, RB_RFE_PINMUX, BMASKDWORD,
-				      0x77777777);
-			rtl_set_bbreg(hw, RA_RFE_INV, 0x3ff00000, 0x000);
-			rtl_set_bbreg(hw, RB_RFE_INV, 0x3ff00000, 0x000);
-		}
+
+		if (rtlhal->hw_type == HARDWARE_TYPE_RTL8812AE)
+			_rtl8812ae_phy_set_rfe_reg_24g(hw);
 
 		rtl_set_bbreg(hw, RTXPATH, 0xf0, 0x1);
 		rtl_set_bbreg(hw, RCCK_RX, 0x0f000000, 0x1);
@@ -615,14 +711,8 @@ void rtl8821ae_phy_switch_wirelessband(s
 			/* 0x82C[1:0] = 2'b00 */
 			rtl_set_bbreg(hw, 0x82c, 0x3, 1);
 
-		if (rtlhal->hw_type == HARDWARE_TYPE_RTL8812AE) {
-			rtl_set_bbreg(hw, RA_RFE_PINMUX, BMASKDWORD,
-				      0x77337777);
-			rtl_set_bbreg(hw, RB_RFE_PINMUX, BMASKDWORD,
-				      0x77337777);
-			rtl_set_bbreg(hw, RA_RFE_INV, 0x3ff00000, 0x010);
-			rtl_set_bbreg(hw, RB_RFE_INV, 0x3ff00000, 0x010);
-		}
+		if (rtlhal->hw_type == HARDWARE_TYPE_RTL8812AE)
+			_rtl8812ae_phy_set_rfe_reg_5g(hw);
 
 		rtl_set_bbreg(hw, RTXPATH, 0xf0, 0);
 		rtl_set_bbreg(hw, RCCK_RX, 0x0f000000, 0xf);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/reg.h linux-libre-4.4.107-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/reg.h
--- linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/reg.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/reg.h	2017-12-20 04:05:01.000000000 -0500
@@ -2424,6 +2424,7 @@
 #define	BMASKH4BITS			0xf0000000
 #define BMASKOFDM_D			0xffc00000
 #define	BMASKCCK			0x3f3f3f3f
+#define BMASKRFEINV			0x3ff00000
 
 #define BRFREGOFFSETMASK		0xfffff
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/sw.c linux-libre-4.4.107-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/sw.c
--- linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/sw.c	2016-01-10 21:11:02.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/sw.c	2017-12-20 11:37:24.000000000 -0500
@@ -95,8 +95,6 @@ int rtl8821ae_init_sw_vars(struct ieee80
 	struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
 
 	rtl8821ae_bt_reg_init(hw);
-	rtlpci->msi_support = rtlpriv->cfg->mod_params->msi_support;
-	rtlpci->int_clear = rtlpriv->cfg->mod_params->int_clear;
 	rtlpriv->btcoexist.btc_ops = rtl_btc_get_ops_pointer();
 
 	rtlpriv->dm.dm_initialgain_enable = 1;
@@ -168,12 +166,15 @@ int rtl8821ae_init_sw_vars(struct ieee80
 	rtlpriv->psc.swctrl_lps = rtlpriv->cfg->mod_params->swctrl_lps;
 	rtlpriv->psc.fwctrl_lps = rtlpriv->cfg->mod_params->fwctrl_lps;
 	rtlpci->msi_support = rtlpriv->cfg->mod_params->msi_support;
-	rtlpci->msi_support = rtlpriv->cfg->mod_params->int_clear;
+	rtlpci->int_clear = rtlpriv->cfg->mod_params->int_clear;
+	rtlpriv->cfg->mod_params->sw_crypto =
+		rtlpriv->cfg->mod_params->sw_crypto;
+	rtlpriv->cfg->mod_params->disable_watchdog =
+		rtlpriv->cfg->mod_params->disable_watchdog;
 	if (rtlpriv->cfg->mod_params->disable_watchdog)
 		pr_info("watchdog disabled\n");
 	rtlpriv->psc.reg_fwctrl_lps = 3;
 	rtlpriv->psc.reg_max_lps_awakeintvl = 5;
-	rtlpci->msi_support = rtlpriv->cfg->mod_params->msi_support;
 
 	/* for ASPM, you can close aspm through
 	 * set const_support_pciaspm = 0
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtlwifi/usb.c linux-libre-4.4.107-gnu/drivers/net/wireless/realtek/rtlwifi/usb.c
--- linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtlwifi/usb.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/realtek/rtlwifi/usb.c	2017-12-20 04:05:01.000000000 -0500
@@ -531,6 +531,8 @@ static void _rtl_usb_rx_process_noagg(st
 			ieee80211_rx(hw, skb);
 		else
 			dev_kfree_skb_any(skb);
+	} else {
+		dev_kfree_skb_any(skb);
 	}
 }
 
@@ -832,12 +834,30 @@ static void rtl_usb_stop(struct ieee8021
 	struct rtl_priv *rtlpriv = rtl_priv(hw);
 	struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
 	struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
+	struct urb *urb;
 
 	/* should after adapter start and interrupt enable. */
 	set_hal_stop(rtlhal);
 	cancel_work_sync(&rtlpriv->works.fill_h2c_cmd);
 	/* Enable software */
 	SET_USB_STOP(rtlusb);
+
+	/* free pre-allocated URBs from rtl_usb_start() */
+	usb_kill_anchored_urbs(&rtlusb->rx_submitted);
+
+	tasklet_kill(&rtlusb->rx_work_tasklet);
+	cancel_work_sync(&rtlpriv->works.lps_change_work);
+
+	flush_workqueue(rtlpriv->works.rtl_wq);
+
+	skb_queue_purge(&rtlusb->rx_queue);
+
+	while ((urb = usb_get_from_anchor(&rtlusb->rx_cleanup_urbs))) {
+		usb_free_coherent(urb->dev, urb->transfer_buffer_length,
+				urb->transfer_buffer, urb->transfer_dma);
+		usb_free_urb(urb);
+	}
+
 	rtlpriv->cfg->ops->hw_disable(hw);
 }
 
@@ -1071,6 +1091,7 @@ int rtl_usb_probe(struct usb_interface *
 		return -ENOMEM;
 	}
 	rtlpriv = hw->priv;
+	rtlpriv->hw = hw;
 	rtlpriv->usb_data = kzalloc(RTL_USB_MAX_RX_COUNT * sizeof(u32),
 				    GFP_KERNEL);
 	if (!rtlpriv->usb_data)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtlwifi/usb.h linux-libre-4.4.107-gnu/drivers/net/wireless/realtek/rtlwifi/usb.h
--- linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtlwifi/usb.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/realtek/rtlwifi/usb.h	2017-12-20 04:05:01.000000000 -0500
@@ -150,8 +150,9 @@ struct rtl_usb {
 };
 
 struct rtl_usb_priv {
-	struct rtl_usb dev;
+	struct bt_coexist_info bt_coexist;
 	struct rtl_led_ctl ledctl;
+	struct rtl_usb dev;
 };
 
 #define rtl_usbpriv(hw)	 (((struct rtl_usb_priv *)(rtl_priv(hw))->priv))
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtlwifi/wifi.h linux-libre-4.4.107-gnu/drivers/net/wireless/realtek/rtlwifi/wifi.h
--- linux-libre-4.4-gnu/drivers/net/wireless/realtek/rtlwifi/wifi.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/realtek/rtlwifi/wifi.h	2017-12-20 04:05:01.000000000 -0500
@@ -2252,6 +2252,9 @@ struct rtl_mod_params {
 
 	/* default 0: 1 means do not disable interrupts */
 	bool int_clear;
+
+	/* select antenna */
+	int ant_sel;
 };
 
 struct rtl_hal_usbint_cfg {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/rsi/rsi_91x_mac80211.c linux-libre-4.4.107-gnu/drivers/net/wireless/rsi/rsi_91x_mac80211.c
--- linux-libre-4.4-gnu/drivers/net/wireless/rsi/rsi_91x_mac80211.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/rsi/rsi_91x_mac80211.c	2017-12-20 04:05:01.000000000 -0500
@@ -659,29 +659,24 @@ static int rsi_mac80211_set_key(struct i
  *				 informs the f/w regarding this.
  * @hw: Pointer to the ieee80211_hw structure.
  * @vif: Pointer to the ieee80211_vif structure.
- * @action: ieee80211_ampdu_mlme_action enum.
- * @sta: Pointer to the ieee80211_sta structure.
- * @tid: Traffic identifier.
- * @ssn: Pointer to ssn value.
- * @buf_size: Buffer size (for kernel version > 2.6.38).
- * @amsdu: is AMSDU in AMPDU allowed
+ * @params: Pointer to A-MPDU action parameters
  *
  * Return: status: 0 on success, negative error code on failure.
  */
 static int rsi_mac80211_ampdu_action(struct ieee80211_hw *hw,
 				     struct ieee80211_vif *vif,
-				     enum ieee80211_ampdu_mlme_action action,
-				     struct ieee80211_sta *sta,
-				     unsigned short tid,
-				     unsigned short *ssn,
-				     unsigned char buf_size,
-				     bool amsdu)
+				     struct ieee80211_ampdu_params *params)
 {
 	int status = -EOPNOTSUPP;
 	struct rsi_hw *adapter = hw->priv;
 	struct rsi_common *common = adapter->priv;
 	u16 seq_no = 0;
 	u8 ii = 0;
+	struct ieee80211_sta *sta = params->sta;
+	enum ieee80211_ampdu_mlme_action action = params->action;
+	u16 tid = params->tid;
+	u16 *ssn = &params->ssn;
+	u8 buf_size = params->buf_size;
 
 	for (ii = 0; ii < RSI_MAX_VIFS; ii++) {
 		if (vif == adapter->vifs[ii])
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/rt2x00/rt2800lib.c linux-libre-4.4.107-gnu/drivers/net/wireless/rt2x00/rt2800lib.c
--- linux-libre-4.4-gnu/drivers/net/wireless/rt2x00/rt2800lib.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/rt2x00/rt2800lib.c	2017-12-20 04:05:01.000000000 -0500
@@ -7935,10 +7935,11 @@ u64 rt2800_get_tsf(struct ieee80211_hw *
 EXPORT_SYMBOL_GPL(rt2800_get_tsf);
 
 int rt2800_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
-			enum ieee80211_ampdu_mlme_action action,
-			struct ieee80211_sta *sta, u16 tid, u16 *ssn,
-			u8 buf_size, bool amsdu)
+			struct ieee80211_ampdu_params *params)
 {
+	struct ieee80211_sta *sta = params->sta;
+	enum ieee80211_ampdu_mlme_action action = params->action;
+	u16 tid = params->tid;
 	struct rt2x00_sta *sta_priv = (struct rt2x00_sta *)sta->drv_priv;
 	int ret = 0;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/rt2x00/rt2800lib.h linux-libre-4.4.107-gnu/drivers/net/wireless/rt2x00/rt2800lib.h
--- linux-libre-4.4-gnu/drivers/net/wireless/rt2x00/rt2800lib.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/rt2x00/rt2800lib.h	2017-12-20 04:05:01.000000000 -0500
@@ -218,9 +218,7 @@ int rt2800_conf_tx(struct ieee80211_hw *
 		   const struct ieee80211_tx_queue_params *params);
 u64 rt2800_get_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif);
 int rt2800_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
-			enum ieee80211_ampdu_mlme_action action,
-			struct ieee80211_sta *sta, u16 tid, u16 *ssn,
-			u8 buf_size, bool amsdu);
+			struct ieee80211_ampdu_params *params);
 int rt2800_get_survey(struct ieee80211_hw *hw, int idx,
 		      struct survey_info *survey);
 void rt2800_disable_wpdma(struct rt2x00_dev *rt2x00dev);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/ti/wl1251/main.c linux-libre-4.4.107-gnu/drivers/net/wireless/ti/wl1251/main.c
--- linux-libre-4.4-gnu/drivers/net/wireless/ti/wl1251/main.c	2016-01-10 21:11:07.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/ti/wl1251/main.c	2017-12-20 11:37:33.000000000 -0500
@@ -1567,6 +1567,7 @@ struct ieee80211_hw *wl1251_alloc_hw(voi
 
 	wl->state = WL1251_STATE_OFF;
 	mutex_init(&wl->mutex);
+	spin_lock_init(&wl->wl_lock);
 
 	wl->tx_mgmt_frm_rate = DEFAULT_HW_GEN_TX_RATE;
 	wl->tx_mgmt_frm_mod = DEFAULT_HW_GEN_MODULATION_TYPE;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/ti/wl18xx/event.c linux-libre-4.4.107-gnu/drivers/net/wireless/ti/wl18xx/event.c
--- linux-libre-4.4-gnu/drivers/net/wireless/ti/wl18xx/event.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/ti/wl18xx/event.c	2017-12-20 04:05:01.000000000 -0500
@@ -206,5 +206,33 @@ int wl18xx_process_mailbox_events(struct
 						 mbox->sc_pwd_len,
 						 mbox->sc_pwd);
 
+	if (vector & RX_BA_WIN_SIZE_CHANGE_EVENT_ID) {
+		struct wl12xx_vif *wlvif;
+		struct ieee80211_vif *vif;
+		struct ieee80211_sta *sta;
+		u8 link_id = mbox->rx_ba_link_id;
+		u8 win_size = mbox->rx_ba_win_size;
+		const u8 *addr;
+
+		wlvif = wl->links[link_id].wlvif;
+		vif = wl12xx_wlvif_to_vif(wlvif);
+
+		/* Update RX aggregation window size and call
+		 * MAC routine to stop active RX aggregations for this link
+		 */
+		if (wlvif->bss_type != BSS_TYPE_AP_BSS)
+			addr = vif->bss_conf.bssid;
+		else
+			addr = wl->links[link_id].addr;
+
+		sta = ieee80211_find_sta(vif, addr);
+		if (sta) {
+			sta->max_rx_aggregation_subframes = win_size;
+			ieee80211_stop_rx_ba_session(vif,
+						wl->links[link_id].ba_bitmap,
+						addr);
+		}
+	}
+
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/ti/wl18xx/event.h linux-libre-4.4.107-gnu/drivers/net/wireless/ti/wl18xx/event.h
--- linux-libre-4.4-gnu/drivers/net/wireless/ti/wl18xx/event.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/ti/wl18xx/event.h	2017-12-20 04:05:01.000000000 -0500
@@ -38,6 +38,7 @@ enum {
 	REMAIN_ON_CHANNEL_COMPLETE_EVENT_ID      = BIT(18),
 	DFS_CHANNELS_CONFIG_COMPLETE_EVENT       = BIT(19),
 	PERIODIC_SCAN_REPORT_EVENT_ID            = BIT(20),
+	RX_BA_WIN_SIZE_CHANGE_EVENT_ID           = BIT(21),
 	SMART_CONFIG_SYNC_EVENT_ID               = BIT(22),
 	SMART_CONFIG_DECODE_EVENT_ID             = BIT(23),
 	TIME_SYNC_EVENT_ID                       = BIT(24),
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/ti/wl18xx/main.c linux-libre-4.4.107-gnu/drivers/net/wireless/ti/wl18xx/main.c
--- linux-libre-4.4-gnu/drivers/net/wireless/ti/wl18xx/main.c	2016-01-10 21:11:23.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/ti/wl18xx/main.c	2017-12-20 11:37:51.000000000 -0500
@@ -1029,7 +1029,8 @@ static int wl18xx_boot(struct wl1271 *wl
 		DFS_CHANNELS_CONFIG_COMPLETE_EVENT |
 		SMART_CONFIG_SYNC_EVENT_ID |
 		SMART_CONFIG_DECODE_EVENT_ID |
-		TIME_SYNC_EVENT_ID;
+		TIME_SYNC_EVENT_ID |
+		RX_BA_WIN_SIZE_CHANGE_EVENT_ID;
 
 	wl->ap_event_mask = MAX_TX_FAILURE_EVENT_ID;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/ti/wlcore/acx.c linux-libre-4.4.107-gnu/drivers/net/wireless/ti/wlcore/acx.c
--- linux-libre-4.4-gnu/drivers/net/wireless/ti/wlcore/acx.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/ti/wlcore/acx.c	2017-12-20 04:05:01.000000000 -0500
@@ -1419,7 +1419,8 @@ out:
 
 /* setup BA session receiver setting in the FW. */
 int wl12xx_acx_set_ba_receiver_session(struct wl1271 *wl, u8 tid_index,
-				       u16 ssn, bool enable, u8 peer_hlid)
+				       u16 ssn, bool enable, u8 peer_hlid,
+				       u8 win_size)
 {
 	struct wl1271_acx_ba_receiver_setup *acx;
 	int ret;
@@ -1435,7 +1436,7 @@ int wl12xx_acx_set_ba_receiver_session(s
 	acx->hlid = peer_hlid;
 	acx->tid = tid_index;
 	acx->enable = enable;
-	acx->win_size = wl->conf.ht.rx_ba_win_size;
+	acx->win_size =	win_size;
 	acx->ssn = ssn;
 
 	ret = wlcore_cmd_configure_failsafe(wl, ACX_BA_SESSION_RX_SETUP, acx,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/ti/wlcore/acx.h linux-libre-4.4.107-gnu/drivers/net/wireless/ti/wlcore/acx.h
--- linux-libre-4.4-gnu/drivers/net/wireless/ti/wlcore/acx.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/ti/wlcore/acx.h	2017-12-20 04:05:01.000000000 -0500
@@ -1112,7 +1112,8 @@ int wl1271_acx_set_ht_information(struct
 int wl12xx_acx_set_ba_initiator_policy(struct wl1271 *wl,
 				       struct wl12xx_vif *wlvif);
 int wl12xx_acx_set_ba_receiver_session(struct wl1271 *wl, u8 tid_index,
-				       u16 ssn, bool enable, u8 peer_hlid);
+				       u16 ssn, bool enable, u8 peer_hlid,
+				       u8 win_size);
 int wl12xx_acx_tsf_info(struct wl1271 *wl, struct wl12xx_vif *wlvif,
 			u64 *mactime);
 int wl1271_acx_ps_rx_streaming(struct wl1271 *wl, struct wl12xx_vif *wlvif,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/ti/wlcore/io.h linux-libre-4.4.107-gnu/drivers/net/wireless/ti/wlcore/io.h
--- linux-libre-4.4-gnu/drivers/net/wireless/ti/wlcore/io.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/ti/wlcore/io.h	2017-12-20 04:05:01.000000000 -0500
@@ -207,19 +207,23 @@ static inline int __must_check wlcore_wr
 
 static inline void wl1271_power_off(struct wl1271 *wl)
 {
-	int ret;
+	int ret = 0;
 
 	if (!test_bit(WL1271_FLAG_GPIO_POWER, &wl->flags))
 		return;
 
-	ret = wl->if_ops->power(wl->dev, false);
+	if (wl->if_ops->power)
+		ret = wl->if_ops->power(wl->dev, false);
 	if (!ret)
 		clear_bit(WL1271_FLAG_GPIO_POWER, &wl->flags);
 }
 
 static inline int wl1271_power_on(struct wl1271 *wl)
 {
-	int ret = wl->if_ops->power(wl->dev, true);
+	int ret = 0;
+
+	if (wl->if_ops->power)
+		ret = wl->if_ops->power(wl->dev, true);
 	if (ret == 0)
 		set_bit(WL1271_FLAG_GPIO_POWER, &wl->flags);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/ti/wlcore/main.c linux-libre-4.4.107-gnu/drivers/net/wireless/ti/wlcore/main.c
--- linux-libre-4.4-gnu/drivers/net/wireless/ti/wlcore/main.c	2016-01-10 21:11:28.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/ti/wlcore/main.c	2017-12-20 11:37:58.000000000 -0500
@@ -5261,14 +5261,16 @@ out:
 
 static int wl1271_op_ampdu_action(struct ieee80211_hw *hw,
 				  struct ieee80211_vif *vif,
-				  enum ieee80211_ampdu_mlme_action action,
-				  struct ieee80211_sta *sta, u16 tid, u16 *ssn,
-				  u8 buf_size, bool amsdu)
+				  struct ieee80211_ampdu_params *params)
 {
 	struct wl1271 *wl = hw->priv;
 	struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
 	int ret;
 	u8 hlid, *ba_bitmap;
+	struct ieee80211_sta *sta = params->sta;
+	enum ieee80211_ampdu_mlme_action action = params->action;
+	u16 tid = params->tid;
+	u16 *ssn = &params->ssn;
 
 	wl1271_debug(DEBUG_MAC80211, "mac80211 ampdu action %d tid %d", action,
 		     tid);
@@ -5326,7 +5328,9 @@ static int wl1271_op_ampdu_action(struct
 		}
 
 		ret = wl12xx_acx_set_ba_receiver_session(wl, tid, *ssn, true,
-							 hlid);
+				hlid,
+				params->buf_size);
+
 		if (!ret) {
 			*ba_bitmap |= BIT(tid);
 			wl->ba_rx_session_count++;
@@ -5347,7 +5351,7 @@ static int wl1271_op_ampdu_action(struct
 		}
 
 		ret = wl12xx_acx_set_ba_receiver_session(wl, tid, 0, false,
-							 hlid);
+							 hlid, 0);
 		if (!ret) {
 			*ba_bitmap &= ~BIT(tid);
 			wl->ba_rx_session_count--;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/wireless/ti/wlcore/spi.c linux-libre-4.4.107-gnu/drivers/net/wireless/ti/wlcore/spi.c
--- linux-libre-4.4-gnu/drivers/net/wireless/ti/wlcore/spi.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/wireless/ti/wlcore/spi.c	2017-12-20 04:05:01.000000000 -0500
@@ -71,9 +71,12 @@
  * only support SPI for 12xx - this code should be reworked when 18xx
  * support is introduced
  */
-#define SPI_AGGR_BUFFER_SIZE (4 * PAGE_SIZE)
+#define SPI_AGGR_BUFFER_SIZE (4 * SZ_4K)
+
+/* Maximum number of SPI write chunks */
+#define WSPI_MAX_NUM_OF_CHUNKS \
+	((SPI_AGGR_BUFFER_SIZE / WSPI_MAX_CHUNK_SIZE) + 1)
 
-#define WSPI_MAX_NUM_OF_CHUNKS (SPI_AGGR_BUFFER_SIZE / WSPI_MAX_CHUNK_SIZE)
 
 struct wl12xx_spi_glue {
 	struct device *dev;
@@ -268,9 +271,10 @@ static int __must_check wl12xx_spi_raw_w
 					     void *buf, size_t len, bool fixed)
 {
 	struct wl12xx_spi_glue *glue = dev_get_drvdata(child->parent);
-	struct spi_transfer t[2 * (WSPI_MAX_NUM_OF_CHUNKS + 1)];
+	/* SPI write buffers - 2 for each chunk */
+	struct spi_transfer t[2 * WSPI_MAX_NUM_OF_CHUNKS];
 	struct spi_message m;
-	u32 commands[WSPI_MAX_NUM_OF_CHUNKS];
+	u32 commands[WSPI_MAX_NUM_OF_CHUNKS]; /* 1 command per chunk */
 	u32 *cmd;
 	u32 chunk_len;
 	int i;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/xen-netback/common.h linux-libre-4.4.107-gnu/drivers/net/xen-netback/common.h
--- linux-libre-4.4-gnu/drivers/net/xen-netback/common.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/xen-netback/common.h	2017-12-20 04:05:01.000000000 -0500
@@ -201,6 +201,7 @@ struct xenvif_queue { /* Per-queue data
 	unsigned long   remaining_credit;
 	struct timer_list credit_timeout;
 	u64 credit_window_start;
+	bool rate_limited;
 
 	/* Statistics */
 	struct xenvif_stats stats;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/xen-netback/interface.c linux-libre-4.4.107-gnu/drivers/net/xen-netback/interface.c
--- linux-libre-4.4-gnu/drivers/net/xen-netback/interface.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/xen-netback/interface.c	2017-12-20 04:05:01.000000000 -0500
@@ -105,7 +105,11 @@ static int xenvif_poll(struct napi_struc
 
 	if (work_done < budget) {
 		napi_complete(napi);
-		xenvif_napi_schedule_or_enable_events(queue);
+		/* If the queue is rate-limited, it shall be
+		 * rescheduled in the timer callback.
+		 */
+		if (likely(!queue->rate_limited))
+			xenvif_napi_schedule_or_enable_events(queue);
 	}
 
 	return work_done;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/xen-netback/netback.c linux-libre-4.4.107-gnu/drivers/net/xen-netback/netback.c
--- linux-libre-4.4-gnu/drivers/net/xen-netback/netback.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/xen-netback/netback.c	2017-12-20 04:05:01.000000000 -0500
@@ -67,6 +67,7 @@ module_param(rx_drain_timeout_msecs, uin
 unsigned int rx_stall_timeout_msecs = 60000;
 module_param(rx_stall_timeout_msecs, uint, 0444);
 
+#define MAX_QUEUES_DEFAULT 8
 unsigned int xenvif_max_queues;
 module_param_named(max_queues, xenvif_max_queues, uint, 0644);
 MODULE_PARM_DESC(max_queues,
@@ -687,6 +688,7 @@ static void tx_add_credit(struct xenvif_
 		max_credit = ULONG_MAX; /* wrapped: clamp to ULONG_MAX */
 
 	queue->remaining_credit = min(max_credit, max_burst);
+	queue->rate_limited = false;
 }
 
 void xenvif_tx_credit_callback(unsigned long data)
@@ -1184,8 +1186,10 @@ static bool tx_credit_exceeded(struct xe
 		msecs_to_jiffies(queue->credit_usec / 1000);
 
 	/* Timer could already be pending in rare cases. */
-	if (timer_pending(&queue->credit_timeout))
+	if (timer_pending(&queue->credit_timeout)) {
+		queue->rate_limited = true;
 		return true;
+	}
 
 	/* Passed the point where we can replenish credit? */
 	if (time_after_eq64(now, next_credit)) {
@@ -1200,6 +1204,7 @@ static bool tx_credit_exceeded(struct xe
 		mod_timer(&queue->credit_timeout,
 			  next_credit);
 		queue->credit_window_start = next_credit;
+		queue->rate_limited = true;
 
 		return true;
 	}
@@ -2153,11 +2158,12 @@ static int __init netback_init(void)
 	if (!xen_domain())
 		return -ENODEV;
 
-	/* Allow as many queues as there are CPUs if user has not
+	/* Allow as many queues as there are CPUs but max. 8 if user has not
 	 * specified a value.
 	 */
 	if (xenvif_max_queues == 0)
-		xenvif_max_queues = num_online_cpus();
+		xenvif_max_queues = min_t(unsigned int, MAX_QUEUES_DEFAULT,
+					  num_online_cpus());
 
 	if (fatal_skb_slots < XEN_NETBK_LEGACY_SLOTS_MAX) {
 		pr_info("fatal_skb_slots too small (%d), bump it to XEN_NETBK_LEGACY_SLOTS_MAX (%d)\n",
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/net/xen-netfront.c linux-libre-4.4.107-gnu/drivers/net/xen-netfront.c
--- linux-libre-4.4-gnu/drivers/net/xen-netfront.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/net/xen-netfront.c	2017-12-20 04:05:01.000000000 -0500
@@ -304,7 +304,7 @@ static void xennet_alloc_rx_buffers(stru
 		queue->rx_skbs[id] = skb;
 
 		ref = gnttab_claim_grant_reference(&queue->gref_rx_head);
-		BUG_ON((signed short)ref < 0);
+		WARN_ON_ONCE(IS_ERR_VALUE((unsigned long)(int)ref));
 		queue->grant_rx_ref[id] = ref;
 
 		page = skb_frag_page(&skb_shinfo(skb)->frags[0]);
@@ -321,7 +321,7 @@ static void xennet_alloc_rx_buffers(stru
 	queue->rx.req_prod_pvt = req_prod;
 
 	/* Not enough requests? Try again later. */
-	if (req_prod - queue->rx.rsp_cons < NET_RX_SLOTS_MIN) {
+	if (req_prod - queue->rx.sring->req_prod < NET_RX_SLOTS_MIN) {
 		mod_timer(&queue->rx_refill_timer, jiffies + (HZ/10));
 		return;
 	}
@@ -437,7 +437,7 @@ static void xennet_tx_setup_grant(unsign
 	id = get_id_from_freelist(&queue->tx_skb_freelist, queue->tx_skbs);
 	tx = RING_GET_REQUEST(&queue->tx, queue->tx.req_prod_pvt++);
 	ref = gnttab_claim_grant_reference(&queue->gref_tx_head);
-	BUG_ON((signed short)ref < 0);
+	WARN_ON_ONCE(IS_ERR_VALUE((unsigned long)(int)ref));
 
 	gnttab_grant_foreign_access_ref(ref, queue->info->xbdev->otherend_id,
 					gfn, GNTMAP_readonly);
@@ -1391,6 +1391,8 @@ static void xennet_disconnect_backend(st
 	for (i = 0; i < num_queues && info->queues; ++i) {
 		struct netfront_queue *queue = &info->queues[i];
 
+		del_timer_sync(&queue->rx_refill_timer);
+
 		if (queue->tx_irq && (queue->tx_irq == queue->rx_irq))
 			unbind_from_irqhandler(queue->tx_irq, queue);
 		if (queue->tx_irq && (queue->tx_irq != queue->rx_irq)) {
@@ -1745,7 +1747,6 @@ static void xennet_destroy_queues(struct
 
 		if (netif_running(info->netdev))
 			napi_disable(&queue->napi);
-		del_timer_sync(&queue->rx_refill_timer);
 		netif_napi_del(&queue->napi);
 	}
 
@@ -1839,27 +1840,19 @@ static int talk_to_netback(struct xenbus
 		xennet_destroy_queues(info);
 
 	err = xennet_create_queues(info, &num_queues);
-	if (err < 0)
-		goto destroy_ring;
+	if (err < 0) {
+		xenbus_dev_fatal(dev, err, "creating queues");
+		kfree(info->queues);
+		info->queues = NULL;
+		goto out;
+	}
 
 	/* Create shared ring, alloc event channel -- for each queue */
 	for (i = 0; i < num_queues; ++i) {
 		queue = &info->queues[i];
 		err = setup_netfront(dev, queue, feature_split_evtchn);
-		if (err) {
-			/* setup_netfront() will tidy up the current
-			 * queue on error, but we need to clean up
-			 * those already allocated.
-			 */
-			if (i > 0) {
-				rtnl_lock();
-				netif_set_real_num_tx_queues(info->netdev, i);
-				rtnl_unlock();
-				goto destroy_ring;
-			} else {
-				goto out;
-			}
-		}
+		if (err)
+			goto destroy_ring;
 	}
 
 again:
@@ -1949,9 +1942,9 @@ abort_transaction_no_dev_fatal:
 	xenbus_transaction_end(xbt, 1);
  destroy_ring:
 	xennet_disconnect_backend(info);
-	kfree(info->queues);
-	info->queues = NULL;
+	xennet_destroy_queues(info);
  out:
+	device_unregister(&dev->dev);
 	return err;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/nfc/fdp/fdp.c linux-libre-4.4.107-gnu/drivers/nfc/fdp/fdp.c
--- linux-libre-4.4-gnu/drivers/nfc/fdp/fdp.c	2016-01-10 21:06:05.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/nfc/fdp/fdp.c	2017-12-20 11:28:20.000000000 -0500
@@ -352,7 +352,7 @@ static int fdp_nci_patch_otp(struct nci_
 {
 	struct fdp_nci_info *info = nci_get_drvdata(ndev);
 	struct device *dev = &info->phy->i2c_dev->dev;
-	u8 conn_id;
+	int conn_id;
 	int r = 0;
 
 	if (info->otp_version >= info->otp_patch_version)
@@ -423,7 +423,7 @@ static int fdp_nci_patch_ram(struct nci_
 {
 	struct fdp_nci_info *info = nci_get_drvdata(ndev);
 	struct device *dev = &info->phy->i2c_dev->dev;
-	u8 conn_id;
+	int conn_id;
 	int r = 0;
 
 	if (info->ram_version >= info->ram_patch_version)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/nfc/fdp/i2c.c linux-libre-4.4.107-gnu/drivers/nfc/fdp/i2c.c
--- linux-libre-4.4-gnu/drivers/nfc/fdp/i2c.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/nfc/fdp/i2c.c	2017-12-20 04:05:01.000000000 -0500
@@ -210,14 +210,14 @@ static irqreturn_t fdp_nci_i2c_irq_threa
 	struct sk_buff *skb;
 	int r;
 
-	client = phy->i2c_dev;
-	dev_dbg(&client->dev, "%s\n", __func__);
-
 	if (!phy || irq != phy->i2c_dev->irq) {
 		WARN_ON_ONCE(1);
 		return IRQ_NONE;
 	}
 
+	client = phy->i2c_dev;
+	dev_dbg(&client->dev, "%s\n", __func__);
+
 	r = fdp_nci_i2c_read(phy, &skb);
 
 	if (r == -EREMOTEIO)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/nfc/mei_phy.c linux-libre-4.4.107-gnu/drivers/nfc/mei_phy.c
--- linux-libre-4.4-gnu/drivers/nfc/mei_phy.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/nfc/mei_phy.c	2017-12-20 04:05:01.000000000 -0500
@@ -133,7 +133,7 @@ static int mei_nfc_if_version(struct nfc
 		return -ENOMEM;
 
 	bytes_recv = mei_cldev_recv(phy->cldev, (u8 *)reply, if_version_length);
-	if (bytes_recv < 0 || bytes_recv < sizeof(struct mei_nfc_reply)) {
+	if (bytes_recv < 0 || bytes_recv < if_version_length) {
 		pr_err("Could not read IF version\n");
 		r = -EIO;
 		goto err;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/nfc/nfcmrvl/fw_dnld.c linux-libre-4.4.107-gnu/drivers/nfc/nfcmrvl/fw_dnld.c
--- linux-libre-4.4-gnu/drivers/nfc/nfcmrvl/fw_dnld.c	2016-01-10 21:06:05.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/nfc/nfcmrvl/fw_dnld.c	2017-12-20 11:28:21.000000000 -0500
@@ -459,7 +459,7 @@ int	nfcmrvl_fw_dnld_init(struct nfcmrvl_
 
 	INIT_WORK(&priv->fw_dnld.rx_work, fw_dnld_rx_work);
 	snprintf(name, sizeof(name), "%s_nfcmrvl_fw_dnld_rx_wq",
-		 dev_name(priv->dev));
+		 dev_name(&priv->ndev->nfc_dev->dev));
 	priv->fw_dnld.rx_wq = create_singlethread_workqueue(name);
 	if (!priv->fw_dnld.rx_wq)
 		return -ENOMEM;
@@ -496,6 +496,7 @@ int nfcmrvl_fw_dnld_start(struct nci_dev
 {
 	struct nfcmrvl_private *priv = nci_get_drvdata(ndev);
 	struct nfcmrvl_fw_dnld *fw_dnld = &priv->fw_dnld;
+	int res;
 
 	if (!priv->support_fw_dnld)
 		return -ENOTSUPP;
@@ -511,7 +512,9 @@ int nfcmrvl_fw_dnld_start(struct nci_dev
 	 */
 
 	/* Retrieve FW binary */
-	if (reject_firmware(&fw_dnld->fw, firmware_name, priv->dev) < 0) {
+	res = reject_firmware(&fw_dnld->fw, firmware_name,
+			       &ndev->nfc_dev->dev);
+	if (res < 0) {
 		nfc_err(priv->dev, "failed to retrieve FW %s", firmware_name);
 		return -ENOENT;
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/nfc/nfcmrvl/main.c linux-libre-4.4.107-gnu/drivers/nfc/nfcmrvl/main.c
--- linux-libre-4.4-gnu/drivers/nfc/nfcmrvl/main.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/nfc/nfcmrvl/main.c	2017-12-20 04:05:01.000000000 -0500
@@ -124,12 +124,13 @@ struct nfcmrvl_private *nfcmrvl_nci_regi
 	memcpy(&priv->config, pdata, sizeof(*pdata));
 
 	if (priv->config.reset_n_io) {
-		rc = devm_gpio_request_one(dev,
-					   priv->config.reset_n_io,
-					   GPIOF_OUT_INIT_LOW,
-					   "nfcmrvl_reset_n");
-		if (rc < 0)
+		rc = gpio_request_one(priv->config.reset_n_io,
+				      GPIOF_OUT_INIT_LOW,
+				      "nfcmrvl_reset_n");
+		if (rc < 0) {
+			priv->config.reset_n_io = 0;
 			nfc_err(dev, "failed to request reset_n io\n");
+		}
 	}
 
 	if (phy == NFCMRVL_PHY_SPI) {
@@ -154,7 +155,13 @@ struct nfcmrvl_private *nfcmrvl_nci_regi
 	if (!priv->ndev) {
 		nfc_err(dev, "nci_allocate_device failed\n");
 		rc = -ENOMEM;
-		goto error;
+		goto error_free_gpio;
+	}
+
+	rc = nfcmrvl_fw_dnld_init(priv);
+	if (rc) {
+		nfc_err(dev, "failed to initialize FW download %d\n", rc);
+		goto error_free_dev;
 	}
 
 	nci_set_drvdata(priv->ndev, priv);
@@ -162,24 +169,22 @@ struct nfcmrvl_private *nfcmrvl_nci_regi
 	rc = nci_register_device(priv->ndev);
 	if (rc) {
 		nfc_err(dev, "nci_register_device failed %d\n", rc);
-		goto error_free_dev;
+		goto error_fw_dnld_deinit;
 	}
 
 	/* Ensure that controller is powered off */
 	nfcmrvl_chip_halt(priv);
 
-	rc = nfcmrvl_fw_dnld_init(priv);
-	if (rc) {
-		nfc_err(dev, "failed to initialize FW download %d\n", rc);
-		goto error_free_dev;
-	}
-
 	nfc_info(dev, "registered with nci successfully\n");
 	return priv;
 
+error_fw_dnld_deinit:
+	nfcmrvl_fw_dnld_deinit(priv);
 error_free_dev:
 	nci_free_device(priv->ndev);
-error:
+error_free_gpio:
+	if (priv->config.reset_n_io)
+		gpio_free(priv->config.reset_n_io);
 	kfree(priv);
 	return ERR_PTR(rc);
 }
@@ -195,7 +200,7 @@ void nfcmrvl_nci_unregister_dev(struct n
 	nfcmrvl_fw_dnld_deinit(priv);
 
 	if (priv->config.reset_n_io)
-		devm_gpio_free(priv->dev, priv->config.reset_n_io);
+		gpio_free(priv->config.reset_n_io);
 
 	nci_unregister_device(ndev);
 	nci_free_device(ndev);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/nfc/nfcmrvl/uart.c linux-libre-4.4.107-gnu/drivers/nfc/nfcmrvl/uart.c
--- linux-libre-4.4-gnu/drivers/nfc/nfcmrvl/uart.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/nfc/nfcmrvl/uart.c	2017-12-20 04:05:01.000000000 -0500
@@ -109,6 +109,7 @@ static int nfcmrvl_nci_uart_open(struct
 	struct nfcmrvl_private *priv;
 	struct nfcmrvl_platform_data *pdata = NULL;
 	struct nfcmrvl_platform_data config;
+	struct device *dev = nu->tty->dev;
 
 	/*
 	 * Platform data cannot be used here since usually it is already used
@@ -116,9 +117,8 @@ static int nfcmrvl_nci_uart_open(struct
 	 * and check if DT entries were added.
 	 */
 
-	if (nu->tty->dev->parent && nu->tty->dev->parent->of_node)
-		if (nfcmrvl_uart_parse_dt(nu->tty->dev->parent->of_node,
-					  &config) == 0)
+	if (dev && dev->parent && dev->parent->of_node)
+		if (nfcmrvl_uart_parse_dt(dev->parent->of_node, &config) == 0)
 			pdata = &config;
 
 	if (!pdata) {
@@ -131,7 +131,7 @@ static int nfcmrvl_nci_uart_open(struct
 	}
 
 	priv = nfcmrvl_nci_register_dev(NFCMRVL_PHY_UART, nu, &uart_ops,
-					nu->tty->dev, pdata);
+					dev, pdata);
 	if (IS_ERR(priv))
 		return PTR_ERR(priv);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/ntb/ntb_transport.c linux-libre-4.4.107-gnu/drivers/ntb/ntb_transport.c
--- linux-libre-4.4-gnu/drivers/ntb/ntb_transport.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/ntb/ntb_transport.c	2017-12-20 04:05:01.000000000 -0500
@@ -599,7 +599,7 @@ static int ntb_transport_setup_qp_mw(str
 	if (!mw->virt_addr)
 		return -ENOMEM;
 
-	if (qp_count % mw_count && mw_num + 1 < qp_count / mw_count)
+	if (mw_num < qp_count % mw_count)
 		num_qps_mw = qp_count / mw_count + 1;
 	else
 		num_qps_mw = qp_count / mw_count;
@@ -947,7 +947,7 @@ static int ntb_transport_init_queue(stru
 	qp->event_handler = NULL;
 	ntb_qp_link_down_reset(qp);
 
-	if (qp_count % mw_count && mw_num + 1 < qp_count / mw_count)
+	if (mw_num < qp_count % mw_count)
 		num_qps_mw = qp_count / mw_count + 1;
 	else
 		num_qps_mw = qp_count / mw_count;
@@ -1065,8 +1065,8 @@ static int ntb_transport_probe(struct nt
 	qp_count = ilog2(qp_bitmap);
 	if (max_num_clients && max_num_clients < qp_count)
 		qp_count = max_num_clients;
-	else if (mw_count < qp_count)
-		qp_count = mw_count;
+	else if (nt->mw_count < qp_count)
+		qp_count = nt->mw_count;
 
 	qp_bitmap &= BIT_ULL(qp_count) - 1;
 
@@ -1623,7 +1623,7 @@ ntb_transport_create_queue(void *data, s
 
 	node = dev_to_node(&ndev->dev);
 
-	free_queue = ffs(nt->qp_bitmap);
+	free_queue = ffs(nt->qp_bitmap_free);
 	if (!free_queue)
 		goto err;
 
@@ -2082,9 +2082,8 @@ module_init(ntb_transport_init);
 
 static void __exit ntb_transport_exit(void)
 {
-	debugfs_remove_recursive(nt_debugfs_dir);
-
 	ntb_unregister_client(&ntb_transport_client);
 	bus_unregister(&ntb_transport_bus);
+	debugfs_remove_recursive(nt_debugfs_dir);
 }
 module_exit(ntb_transport_exit);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/nvdimm/btt.c linux-libre-4.4.107-gnu/drivers/nvdimm/btt.c
--- linux-libre-4.4-gnu/drivers/nvdimm/btt.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/nvdimm/btt.c	2017-12-20 04:05:01.000000000 -0500
@@ -1205,10 +1205,13 @@ static int btt_rw_page(struct block_devi
 		struct page *page, int rw)
 {
 	struct btt *btt = bdev->bd_disk->private_data;
+	int rc;
 
-	btt_do_bvec(btt, NULL, page, PAGE_CACHE_SIZE, 0, rw, sector);
-	page_endio(page, rw & WRITE, 0);
-	return 0;
+	rc = btt_do_bvec(btt, NULL, page, PAGE_CACHE_SIZE, 0, rw, sector);
+	if (rc == 0)
+		page_endio(page, rw & WRITE, 0);
+
+	return rc;
 }
 
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/nvdimm/bus.c linux-libre-4.4.107-gnu/drivers/nvdimm/bus.c
--- linux-libre-4.4-gnu/drivers/nvdimm/bus.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/nvdimm/bus.c	2017-12-20 04:05:01.000000000 -0500
@@ -335,7 +335,7 @@ static const struct nd_cmd_desc __nd_cmd
 	[ND_CMD_IMPLEMENTED] = { },
 	[ND_CMD_SMART] = {
 		.out_num = 2,
-		.out_sizes = { 4, 8, },
+		.out_sizes = { 4, 128, },
 	},
 	[ND_CMD_SMART_THRESHOLD] = {
 		.out_num = 2,
@@ -513,10 +513,10 @@ static int __nd_ioctl(struct nvdimm_bus
 
 	/* fail write commands (when read-only) */
 	if (read_only)
-		switch (ioctl_cmd) {
-		case ND_IOCTL_VENDOR:
-		case ND_IOCTL_SET_CONFIG_DATA:
-		case ND_IOCTL_ARS_START:
+		switch (cmd) {
+		case ND_CMD_VENDOR:
+		case ND_CMD_SET_CONFIG_DATA:
+		case ND_CMD_ARS_START:
 			dev_dbg(&nvdimm_bus->dev, "'%s' command while read-only.\n",
 					nvdimm ? nvdimm_cmd_name(cmd)
 					: nvdimm_bus_cmd_name(cmd));
@@ -590,8 +590,14 @@ static int __nd_ioctl(struct nvdimm_bus
 	rc = nd_desc->ndctl(nd_desc, nvdimm, cmd, buf, buf_len);
 	if (rc < 0)
 		goto out_unlock;
+	nvdimm_bus_unlock(&nvdimm_bus->dev);
+
 	if (copy_to_user(p, buf, buf_len))
 		rc = -EFAULT;
+
+	vfree(buf);
+	return rc;
+
  out_unlock:
 	nvdimm_bus_unlock(&nvdimm_bus->dev);
  out:
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/nvdimm/label.c linux-libre-4.4.107-gnu/drivers/nvdimm/label.c
--- linux-libre-4.4-gnu/drivers/nvdimm/label.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/nvdimm/label.c	2017-12-20 04:05:01.000000000 -0500
@@ -823,7 +823,7 @@ static int init_labels(struct nd_mapping
 	nsindex = to_namespace_index(ndd, 0);
 	memset(nsindex, 0, ndd->nsarea.config_size);
 	for (i = 0; i < 2; i++) {
-		int rc = nd_label_write_index(ndd, i, i*2, ND_NSINDEX_INIT);
+		int rc = nd_label_write_index(ndd, i, 3 - i, ND_NSINDEX_INIT);
 
 		if (rc)
 			return rc;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/nvdimm/namespace_devs.c linux-libre-4.4.107-gnu/drivers/nvdimm/namespace_devs.c
--- linux-libre-4.4-gnu/drivers/nvdimm/namespace_devs.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/nvdimm/namespace_devs.c	2017-12-20 04:05:01.000000000 -0500
@@ -77,6 +77,59 @@ static bool is_namespace_io(struct devic
 	return dev ? dev->type == &namespace_io_device_type : false;
 }
 
+static int is_uuid_busy(struct device *dev, void *data)
+{
+	u8 *uuid1 = data, *uuid2 = NULL;
+
+	if (is_namespace_pmem(dev)) {
+		struct nd_namespace_pmem *nspm = to_nd_namespace_pmem(dev);
+
+		uuid2 = nspm->uuid;
+	} else if (is_namespace_blk(dev)) {
+		struct nd_namespace_blk *nsblk = to_nd_namespace_blk(dev);
+
+		uuid2 = nsblk->uuid;
+	} else if (is_nd_btt(dev)) {
+		struct nd_btt *nd_btt = to_nd_btt(dev);
+
+		uuid2 = nd_btt->uuid;
+	} else if (is_nd_pfn(dev)) {
+		struct nd_pfn *nd_pfn = to_nd_pfn(dev);
+
+		uuid2 = nd_pfn->uuid;
+	}
+
+	if (uuid2 && memcmp(uuid1, uuid2, NSLABEL_UUID_LEN) == 0)
+		return -EBUSY;
+
+	return 0;
+}
+
+static int is_namespace_uuid_busy(struct device *dev, void *data)
+{
+	if (is_nd_pmem(dev) || is_nd_blk(dev))
+		return device_for_each_child(dev, data, is_uuid_busy);
+	return 0;
+}
+
+/**
+ * nd_is_uuid_unique - verify that no other namespace has @uuid
+ * @dev: any device on a nvdimm_bus
+ * @uuid: uuid to check
+ */
+bool nd_is_uuid_unique(struct device *dev, u8 *uuid)
+{
+	struct nvdimm_bus *nvdimm_bus = walk_to_nvdimm_bus(dev);
+
+	if (!nvdimm_bus)
+		return false;
+	WARN_ON_ONCE(!is_nvdimm_bus_locked(&nvdimm_bus->dev));
+	if (device_for_each_child(&nvdimm_bus->dev, uuid,
+				is_namespace_uuid_busy) != 0)
+		return false;
+	return true;
+}
+
 bool pmem_should_map_pages(struct device *dev)
 {
 	struct nd_region *nd_region = to_nd_region(dev->parent);
@@ -1252,7 +1305,7 @@ static umode_t namespace_visible(struct
 	if (a == &dev_attr_resource.attr) {
 		if (is_namespace_blk(dev))
 			return 0;
-		return a->mode;
+		return 0400;
 	}
 
 	if (is_namespace_pmem(dev) || is_namespace_blk(dev)) {
@@ -1481,6 +1534,7 @@ static int select_pmem_id(struct nd_regi
 static int find_pmem_label_set(struct nd_region *nd_region,
 		struct nd_namespace_pmem *nspm)
 {
+	u64 altcookie = nd_region_interleave_set_altcookie(nd_region);
 	u64 cookie = nd_region_interleave_set_cookie(nd_region);
 	struct nd_namespace_label *nd_label;
 	u8 select_id[NSLABEL_UUID_LEN];
@@ -1489,8 +1543,10 @@ static int find_pmem_label_set(struct nd
 	int rc = -ENODEV, l;
 	u16 i;
 
-	if (cookie == 0)
+	if (cookie == 0) {
+		dev_dbg(&nd_region->dev, "invalid interleave-set-cookie\n");
 		return -ENXIO;
+	}
 
 	/*
 	 * Find a complete set of labels by uuid.  By definition we can start
@@ -1499,13 +1555,24 @@ static int find_pmem_label_set(struct nd
 	for_each_label(l, nd_label, nd_region->mapping[0].labels) {
 		u64 isetcookie = __le64_to_cpu(nd_label->isetcookie);
 
-		if (isetcookie != cookie)
-			continue;
+		if (isetcookie != cookie) {
+			dev_dbg(&nd_region->dev, "invalid cookie in label: %pUb\n",
+					nd_label->uuid);
+			if (isetcookie != altcookie)
+				continue;
+
+			dev_dbg(&nd_region->dev, "valid altcookie in label: %pUb\n",
+					nd_label->uuid);
+		}
+
+		for (i = 0; nd_region->ndr_mappings; i++) {
+			if (has_uuid_at_pos(nd_region, nd_label->uuid, cookie, i))
+				continue;
+			if (has_uuid_at_pos(nd_region, nd_label->uuid, altcookie, i))
+				continue;
+			break;
+		}
 
-		for (i = 0; nd_region->ndr_mappings; i++)
-			if (!has_uuid_at_pos(nd_region, nd_label->uuid,
-						cookie, i))
-				break;
 		if (i < nd_region->ndr_mappings) {
 			/*
 			 * Give up if we don't find an instance of a
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/nvdimm/nd.h linux-libre-4.4.107-gnu/drivers/nvdimm/nd.h
--- linux-libre-4.4-gnu/drivers/nvdimm/nd.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/nvdimm/nd.h	2017-12-20 04:05:01.000000000 -0500
@@ -245,6 +245,7 @@ struct nd_region *to_nd_region(struct de
 int nd_region_to_nstype(struct nd_region *nd_region);
 int nd_region_register_namespaces(struct nd_region *nd_region, int *err);
 u64 nd_region_interleave_set_cookie(struct nd_region *nd_region);
+u64 nd_region_interleave_set_altcookie(struct nd_region *nd_region);
 void nvdimm_bus_lock(struct device *dev);
 void nvdimm_bus_unlock(struct device *dev);
 bool is_nvdimm_bus_locked(struct device *dev);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/nvdimm/pfn_devs.c linux-libre-4.4.107-gnu/drivers/nvdimm/pfn_devs.c
--- linux-libre-4.4-gnu/drivers/nvdimm/pfn_devs.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/nvdimm/pfn_devs.c	2017-12-20 04:05:01.000000000 -0500
@@ -275,7 +275,7 @@ int nd_pfn_validate(struct nd_pfn *nd_pf
 	} else {
 		/* from init we validate */
 		if (memcmp(nd_pfn->uuid, pfn_sb->uuid, 16) != 0)
-			return -EINVAL;
+			return -ENODEV;
 	}
 
 	/*
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/nvdimm/region_devs.c linux-libre-4.4.107-gnu/drivers/nvdimm/region_devs.c
--- linux-libre-4.4-gnu/drivers/nvdimm/region_devs.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/nvdimm/region_devs.c	2017-12-20 04:05:01.000000000 -0500
@@ -134,62 +134,6 @@ int nd_region_to_nstype(struct nd_region
 }
 EXPORT_SYMBOL(nd_region_to_nstype);
 
-static int is_uuid_busy(struct device *dev, void *data)
-{
-	struct nd_region *nd_region = to_nd_region(dev->parent);
-	u8 *uuid = data;
-
-	switch (nd_region_to_nstype(nd_region)) {
-	case ND_DEVICE_NAMESPACE_PMEM: {
-		struct nd_namespace_pmem *nspm = to_nd_namespace_pmem(dev);
-
-		if (!nspm->uuid)
-			break;
-		if (memcmp(uuid, nspm->uuid, NSLABEL_UUID_LEN) == 0)
-			return -EBUSY;
-		break;
-	}
-	case ND_DEVICE_NAMESPACE_BLK: {
-		struct nd_namespace_blk *nsblk = to_nd_namespace_blk(dev);
-
-		if (!nsblk->uuid)
-			break;
-		if (memcmp(uuid, nsblk->uuid, NSLABEL_UUID_LEN) == 0)
-			return -EBUSY;
-		break;
-	}
-	default:
-		break;
-	}
-
-	return 0;
-}
-
-static int is_namespace_uuid_busy(struct device *dev, void *data)
-{
-	if (is_nd_pmem(dev) || is_nd_blk(dev))
-		return device_for_each_child(dev, data, is_uuid_busy);
-	return 0;
-}
-
-/**
- * nd_is_uuid_unique - verify that no other namespace has @uuid
- * @dev: any device on a nvdimm_bus
- * @uuid: uuid to check
- */
-bool nd_is_uuid_unique(struct device *dev, u8 *uuid)
-{
-	struct nvdimm_bus *nvdimm_bus = walk_to_nvdimm_bus(dev);
-
-	if (!nvdimm_bus)
-		return false;
-	WARN_ON_ONCE(!is_nvdimm_bus_locked(&nvdimm_bus->dev));
-	if (device_for_each_child(&nvdimm_bus->dev, uuid,
-				is_namespace_uuid_busy) != 0)
-		return false;
-	return true;
-}
-
 static ssize_t size_show(struct device *dev,
 		struct device_attribute *attr, char *buf)
 {
@@ -435,6 +379,15 @@ u64 nd_region_interleave_set_cookie(stru
 	return 0;
 }
 
+u64 nd_region_interleave_set_altcookie(struct nd_region *nd_region)
+{
+	struct nd_interleave_set *nd_set = nd_region->nd_set;
+
+	if (nd_set)
+		return nd_set->altcookie;
+	return 0;
+}
+
 /*
  * Upon successful probe/remove, take/release a reference on the
  * associated interleave set (if present), and plant new btt + namespace
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/nvme/host/nvme.h linux-libre-4.4.107-gnu/drivers/nvme/host/nvme.h
--- linux-libre-4.4-gnu/drivers/nvme/host/nvme.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/nvme/host/nvme.h	2017-12-20 04:05:01.000000000 -0500
@@ -14,6 +14,7 @@
 #ifndef _NVME_H
 #define _NVME_H
 
+#include <linux/mutex.h>
 #include <linux/nvme.h>
 #include <linux/pci.h>
 #include <linux/kref.h>
@@ -27,6 +28,13 @@ enum {
 	NVME_NS_LIGHTNVM	= 1,
 };
 
+/* The below value is the specific amount of delay needed before checking
+ * readiness in case of the PCI_DEVICE(0x1c58, 0x0003), which needs the
+ * NVME_QUIRK_DELAY_BEFORE_CHK_RDY quirk enabled. The value (in ms) was
+ * found empirically.
+ */
+#define NVME_QUIRK_DELAY_AMOUNT		2000
+
 /*
  * Represents an NVM Express device.  Each nvme_dev is a PCI function.
  */
@@ -55,6 +63,7 @@ struct nvme_dev {
 	struct work_struct reset_work;
 	struct work_struct probe_work;
 	struct work_struct scan_work;
+	struct mutex shutdown_lock;
 	char name[12];
 	char serial[20];
 	char model[40];
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/nvme/host/pci.c linux-libre-4.4.107-gnu/drivers/nvme/host/pci.c
--- linux-libre-4.4-gnu/drivers/nvme/host/pci.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/nvme/host/pci.c	2017-12-20 04:05:01.000000000 -0500
@@ -350,8 +350,8 @@ static void async_completion(struct nvme
 	struct async_cmd_info *cmdinfo = ctx;
 	cmdinfo->result = le32_to_cpup(&cqe->result);
 	cmdinfo->status = le16_to_cpup(&cqe->status) >> 1;
-	queue_kthread_work(cmdinfo->worker, &cmdinfo->work);
 	blk_mq_free_request(cmdinfo->req);
+	queue_kthread_work(cmdinfo->worker, &cmdinfo->work);
 }
 
 static inline struct nvme_cmd_info *get_cmd_from_tag(struct nvme_queue *nvmeq,
@@ -1633,10 +1633,15 @@ static int nvme_wait_ready(struct nvme_d
  */
 static int nvme_disable_ctrl(struct nvme_dev *dev, u64 cap)
 {
+	struct pci_dev *pdev = to_pci_dev(dev->dev);
+
 	dev->ctrl_config &= ~NVME_CC_SHN_MASK;
 	dev->ctrl_config &= ~NVME_CC_ENABLE;
 	writel(dev->ctrl_config, &dev->bar->cc);
 
+	if (pdev->vendor == 0x1c58 && pdev->device == 0x0003)
+		msleep(NVME_QUIRK_DELAY_AMOUNT);
+
 	return nvme_wait_ready(dev, cap, false);
 }
 
@@ -2672,10 +2677,10 @@ static int nvme_dev_add(struct nvme_dev
 	return 0;
 }
 
-static int nvme_dev_map(struct nvme_dev *dev)
+static int nvme_pci_enable(struct nvme_dev *dev)
 {
 	u64 cap;
-	int bars, result = -ENOMEM;
+	int result = -ENOMEM;
 	struct pci_dev *pdev = to_pci_dev(dev->dev);
 
 	if (pci_enable_device_mem(pdev))
@@ -2683,24 +2688,14 @@ static int nvme_dev_map(struct nvme_dev
 
 	dev->entry[0].vector = pdev->irq;
 	pci_set_master(pdev);
-	bars = pci_select_bars(pdev, IORESOURCE_MEM);
-	if (!bars)
-		goto disable_pci;
-
-	if (pci_request_selected_regions(pdev, bars, "nvme"))
-		goto disable_pci;
 
 	if (dma_set_mask_and_coherent(dev->dev, DMA_BIT_MASK(64)) &&
 	    dma_set_mask_and_coherent(dev->dev, DMA_BIT_MASK(32)))
 		goto disable;
 
-	dev->bar = ioremap(pci_resource_start(pdev, 0), 8192);
-	if (!dev->bar)
-		goto disable;
-
 	if (readl(&dev->bar->csts) == -1) {
 		result = -ENODEV;
-		goto unmap;
+		goto disable;
 	}
 
 	/*
@@ -2710,7 +2705,7 @@ static int nvme_dev_map(struct nvme_dev
 	if (!pdev->irq) {
 		result = pci_enable_msix(pdev, dev->entry, 1);
 		if (result < 0)
-			goto unmap;
+			goto disable;
 	}
 
 	cap = lo_hi_readq(&dev->bar->cap);
@@ -2734,18 +2729,21 @@ static int nvme_dev_map(struct nvme_dev
 
 	return 0;
 
- unmap:
-	iounmap(dev->bar);
-	dev->bar = NULL;
  disable:
-	pci_release_regions(pdev);
- disable_pci:
 	pci_disable_device(pdev);
+
 	return result;
 }
 
 static void nvme_dev_unmap(struct nvme_dev *dev)
 {
+	if (dev->bar)
+		iounmap(dev->bar);
+	pci_release_regions(to_pci_dev(dev->dev));
+}
+
+static void nvme_pci_disable(struct nvme_dev *dev)
+{
 	struct pci_dev *pdev = to_pci_dev(dev->dev);
 
 	if (pdev->msi_enabled)
@@ -2753,12 +2751,6 @@ static void nvme_dev_unmap(struct nvme_d
 	else if (pdev->msix_enabled)
 		pci_disable_msix(pdev);
 
-	if (dev->bar) {
-		iounmap(dev->bar);
-		dev->bar = NULL;
-		pci_release_regions(pdev);
-	}
-
 	if (pci_is_enabled(pdev))
 		pci_disable_device(pdev);
 }
@@ -2962,7 +2954,8 @@ static void nvme_dev_shutdown(struct nvm
 
 	nvme_dev_list_remove(dev);
 
-	if (dev->bar) {
+	mutex_lock(&dev->shutdown_lock);
+	if (pci_is_enabled(to_pci_dev(dev->dev))) {
 		nvme_freeze_queues(dev);
 		csts = readl(&dev->bar->csts);
 	}
@@ -2976,10 +2969,11 @@ static void nvme_dev_shutdown(struct nvm
 		nvme_shutdown_ctrl(dev);
 		nvme_disable_queue(dev, 0);
 	}
-	nvme_dev_unmap(dev);
+	nvme_pci_disable(dev);
 
 	for (i = dev->queue_count - 1; i >= 0; i--)
 		nvme_clear_queue(dev->queues[i]);
+	mutex_unlock(&dev->shutdown_lock);
 }
 
 static void nvme_dev_remove(struct nvme_dev *dev)
@@ -3136,7 +3130,7 @@ static void nvme_probe_work(struct work_
 	bool start_thread = false;
 	int result;
 
-	result = nvme_dev_map(dev);
+	result = nvme_pci_enable(dev);
 	if (result)
 		goto out;
 
@@ -3292,6 +3286,27 @@ static ssize_t nvme_sysfs_reset(struct d
 }
 static DEVICE_ATTR(reset_controller, S_IWUSR, NULL, nvme_sysfs_reset);
 
+static int nvme_dev_map(struct nvme_dev *dev)
+{
+	int bars;
+	struct pci_dev *pdev = to_pci_dev(dev->dev);
+
+	bars = pci_select_bars(pdev, IORESOURCE_MEM);
+	if (!bars)
+		return -ENODEV;
+	if (pci_request_selected_regions(pdev, bars, "nvme"))
+		return -ENODEV;
+
+	dev->bar = ioremap(pci_resource_start(pdev, 0), 8192);
+	if (!dev->bar)
+		goto release;
+
+	return 0;
+release:
+	pci_release_regions(pdev);
+	return -ENODEV;
+}
+
 static int nvme_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 {
 	int node, result = -ENOMEM;
@@ -3315,8 +3330,14 @@ static int nvme_probe(struct pci_dev *pd
 
 	INIT_LIST_HEAD(&dev->namespaces);
 	INIT_WORK(&dev->reset_work, nvme_reset_work);
+	mutex_init(&dev->shutdown_lock);
 	dev->dev = get_device(&pdev->dev);
 	pci_set_drvdata(pdev, dev);
+
+	result = nvme_dev_map(dev);
+	if (result)
+		goto free;
+
 	result = nvme_set_instance(dev);
 	if (result)
 		goto put_pci;
@@ -3355,6 +3376,7 @@ static int nvme_probe(struct pci_dev *pd
 	nvme_release_instance(dev);
  put_pci:
 	put_device(dev->dev);
+	nvme_dev_unmap(dev);
  free:
 	kfree(dev->queues);
 	kfree(dev->entry);
@@ -3398,6 +3420,7 @@ static void nvme_remove(struct pci_dev *
 	nvme_free_queues(dev, 0);
 	nvme_release_cmb(dev);
 	nvme_release_prp_pools(dev);
+	nvme_dev_unmap(dev);
 	kref_put(&dev->kref, nvme_free_dev);
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/nvmem/imx-ocotp.c linux-libre-4.4.107-gnu/drivers/nvmem/imx-ocotp.c
--- linux-libre-4.4-gnu/drivers/nvmem/imx-ocotp.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/nvmem/imx-ocotp.c	2017-12-20 04:05:01.000000000 -0500
@@ -88,7 +88,7 @@ static struct nvmem_config imx_ocotp_nvm
 
 static const struct of_device_id imx_ocotp_dt_ids[] = {
 	{ .compatible = "fsl,imx6q-ocotp",  (void *)128 },
-	{ .compatible = "fsl,imx6sl-ocotp", (void *)32 },
+	{ .compatible = "fsl,imx6sl-ocotp", (void *)64 },
 	{ .compatible = "fsl,imx6sx-ocotp", (void *)128 },
 	{ },
 };
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/nvmem/mxs-ocotp.c linux-libre-4.4.107-gnu/drivers/nvmem/mxs-ocotp.c
--- linux-libre-4.4-gnu/drivers/nvmem/mxs-ocotp.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/nvmem/mxs-ocotp.c	2017-12-20 04:05:01.000000000 -0500
@@ -94,7 +94,7 @@ static int mxs_ocotp_read(void *context,
 	if (ret)
 		goto close_banks;
 
-	while (val_size) {
+	while (val_size >= reg_size) {
 		if ((offset < OCOTP_DATA_OFFSET) || (offset % 16)) {
 			/* fill up non-data register */
 			*buf = 0;
@@ -103,7 +103,7 @@ static int mxs_ocotp_read(void *context,
 		}
 
 		buf++;
-		val_size--;
+		val_size -= reg_size;
 		offset += reg_size;
 	}
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/of/address.c linux-libre-4.4.107-gnu/drivers/of/address.c
--- linux-libre-4.4-gnu/drivers/of/address.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/of/address.c	2017-12-20 04:05:01.000000000 -0500
@@ -260,7 +260,7 @@ struct of_pci_range *of_pci_range_parser
 	if (!parser->range || parser->range + parser->np > parser->end)
 		return NULL;
 
-	range->pci_space = parser->range[0];
+	range->pci_space = be32_to_cpup(parser->range);
 	range->flags = of_bus_pci_get_flags(parser->range);
 	range->pci_addr = of_read_number(parser->range + 1, ns);
 	range->cpu_addr = of_translate_address(parser->node,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/of/base.c linux-libre-4.4.107-gnu/drivers/of/base.c
--- linux-libre-4.4-gnu/drivers/of/base.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/of/base.c	2017-12-20 04:05:01.000000000 -0500
@@ -112,6 +112,7 @@ static ssize_t of_node_property_read(str
 	return memory_read_from_buffer(buf, count, &offset, pp->value, pp->length);
 }
 
+/* always return newly allocated name, caller must free after use */
 static const char *safe_name(struct kobject *kobj, const char *orig_name)
 {
 	const char *name = orig_name;
@@ -126,9 +127,12 @@ static const char *safe_name(struct kobj
 		name = kasprintf(GFP_KERNEL, "%s#%i", orig_name, ++i);
 	}
 
-	if (name != orig_name)
+	if (name == orig_name) {
+		name = kstrdup(orig_name, GFP_KERNEL);
+	} else {
 		pr_warn("device-tree: Duplicate name in %s, renamed to \"%s\"\n",
 			kobject_name(kobj), name);
+	}
 	return name;
 }
 
@@ -159,6 +163,7 @@ int __of_add_property_sysfs(struct devic
 int __of_attach_node_sysfs(struct device_node *np)
 {
 	const char *name;
+	struct kobject *parent;
 	struct property *pp;
 	int rc;
 
@@ -171,15 +176,16 @@ int __of_attach_node_sysfs(struct device
 	np->kobj.kset = of_kset;
 	if (!np->parent) {
 		/* Nodes without parents are new top level trees */
-		rc = kobject_add(&np->kobj, NULL, "%s",
-				 safe_name(&of_kset->kobj, "base"));
+		name = safe_name(&of_kset->kobj, "base");
+		parent = NULL;
 	} else {
 		name = safe_name(&np->parent->kobj, kbasename(np->full_name));
-		if (!name || !name[0])
-			return -EINVAL;
-
-		rc = kobject_add(&np->kobj, &np->parent->kobj, "%s", name);
+		parent = &np->parent->kobj;
 	}
+	if (!name)
+		return -ENOMEM;
+	rc = kobject_add(&np->kobj, parent, "%s", name);
+	kfree(name);
 	if (rc)
 		return rc;
 
@@ -1753,6 +1759,12 @@ int __of_remove_property(struct device_n
 	return 0;
 }
 
+void __of_sysfs_remove_bin_file(struct device_node *np, struct property *prop)
+{
+	sysfs_remove_bin_file(&np->kobj, &prop->attr);
+	kfree(prop->attr.attr.name);
+}
+
 void __of_remove_property_sysfs(struct device_node *np, struct property *prop)
 {
 	if (!IS_ENABLED(CONFIG_SYSFS))
@@ -1760,7 +1772,7 @@ void __of_remove_property_sysfs(struct d
 
 	/* at early boot, bail here and defer setup to of_init() */
 	if (of_kset && of_node_is_attached(np))
-		sysfs_remove_bin_file(&np->kobj, &prop->attr);
+		__of_sysfs_remove_bin_file(np, prop);
 }
 
 /**
@@ -1830,7 +1842,7 @@ void __of_update_property_sysfs(struct d
 		return;
 
 	if (oldprop)
-		sysfs_remove_bin_file(&np->kobj, &oldprop->attr);
+		__of_sysfs_remove_bin_file(np, oldprop);
 	__of_add_property_sysfs(np, newprop);
 }
 
@@ -2241,20 +2253,13 @@ struct device_node *of_graph_get_endpoin
 	const struct device_node *parent, int port_reg, int reg)
 {
 	struct of_endpoint endpoint;
-	struct device_node *node, *prev_node = NULL;
-
-	while (1) {
-		node = of_graph_get_next_endpoint(parent, prev_node);
-		of_node_put(prev_node);
-		if (!node)
-			break;
+	struct device_node *node = NULL;
 
+	for_each_endpoint_of_node(parent, node) {
 		of_graph_parse_endpoint(node, &endpoint);
 		if (((port_reg == -1) || (endpoint.port == port_reg)) &&
 			((reg == -1) || (endpoint.id == reg)))
 			return node;
-
-		prev_node = node;
 	}
 
 	return NULL;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/of/device.c linux-libre-4.4.107-gnu/drivers/of/device.c
--- linux-libre-4.4-gnu/drivers/of/device.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/of/device.c	2017-12-20 04:05:01.000000000 -0500
@@ -225,6 +225,7 @@ ssize_t of_device_get_modalias(struct de
 
 	return tsize;
 }
+EXPORT_SYMBOL_GPL(of_device_get_modalias);
 
 /**
  * of_device_uevent - Display OF related uevent information
@@ -287,3 +288,4 @@ int of_device_uevent_modalias(struct dev
 
 	return 0;
 }
+EXPORT_SYMBOL_GPL(of_device_uevent_modalias);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/of/dynamic.c linux-libre-4.4.107-gnu/drivers/of/dynamic.c
--- linux-libre-4.4-gnu/drivers/of/dynamic.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/of/dynamic.c	2017-12-20 04:05:01.000000000 -0500
@@ -55,7 +55,7 @@ void __of_detach_node_sysfs(struct devic
 	/* only remove properties if on sysfs */
 	if (of_node_is_attached(np)) {
 		for_each_property_of_node(np, pp)
-			sysfs_remove_bin_file(&np->kobj, &pp->attr);
+			__of_sysfs_remove_bin_file(np, pp);
 		kobject_del(&np->kobj);
 	}
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/of/fdt.c linux-libre-4.4.107-gnu/drivers/of/fdt.c
--- linux-libre-4.4-gnu/drivers/of/fdt.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/of/fdt.c	2017-12-20 04:05:01.000000000 -0500
@@ -632,9 +632,12 @@ int __init of_scan_flat_dt(int (*it)(uns
 	const char *pathp;
 	int offset, rc = 0, depth = -1;
 
-        for (offset = fdt_next_node(blob, -1, &depth);
-             offset >= 0 && depth >= 0 && !rc;
-             offset = fdt_next_node(blob, offset, &depth)) {
+	if (!blob)
+		return 0;
+
+	for (offset = fdt_next_node(blob, -1, &depth);
+	     offset >= 0 && depth >= 0 && !rc;
+	     offset = fdt_next_node(blob, offset, &depth)) {
 
 		pathp = fdt_get_name(blob, offset, NULL);
 		if (*pathp == '/')
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/of/irq.c linux-libre-4.4.107-gnu/drivers/of/irq.c
--- linux-libre-4.4-gnu/drivers/of/irq.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/of/irq.c	2017-12-20 04:05:01.000000000 -0500
@@ -386,13 +386,13 @@ int of_irq_to_resource(struct device_nod
 EXPORT_SYMBOL_GPL(of_irq_to_resource);
 
 /**
- * of_irq_get - Decode a node's IRQ and return it as a Linux irq number
+ * of_irq_get - Decode a node's IRQ and return it as a Linux IRQ number
  * @dev: pointer to device tree node
- * @index: zero-based index of the irq
- *
- * Returns Linux irq number on success, or -EPROBE_DEFER if the irq domain
- * is not yet created.
+ * @index: zero-based index of the IRQ
  *
+ * Returns Linux IRQ number on success, or 0 on the IRQ mapping failure, or
+ * -EPROBE_DEFER if the IRQ domain is not yet created, or error code in case
+ * of any other failure.
  */
 int of_irq_get(struct device_node *dev, int index)
 {
@@ -413,12 +413,13 @@ int of_irq_get(struct device_node *dev,
 EXPORT_SYMBOL_GPL(of_irq_get);
 
 /**
- * of_irq_get_byname - Decode a node's IRQ and return it as a Linux irq number
+ * of_irq_get_byname - Decode a node's IRQ and return it as a Linux IRQ number
  * @dev: pointer to device tree node
- * @name: irq name
+ * @name: IRQ name
  *
- * Returns Linux irq number on success, or -EPROBE_DEFER if the irq domain
- * is not yet created, or error code in case of any other failure.
+ * Returns Linux IRQ number on success, or 0 on the IRQ mapping failure, or
+ * -EPROBE_DEFER if the IRQ domain is not yet created, or error code in case
+ * of any other failure.
  */
 int of_irq_get_byname(struct device_node *dev, const char *name)
 {
@@ -636,6 +637,13 @@ static u32 __of_msi_map_rid(struct devic
 		msi_base = be32_to_cpup(msi_map + 2);
 		rid_len = be32_to_cpup(msi_map + 3);
 
+		if (rid_base & ~map_mask) {
+			dev_err(parent_dev,
+				"Invalid msi-map translation - msi-map-mask (0x%x) ignores rid-base (0x%x)\n",
+				map_mask, rid_base);
+			return rid_out;
+		}
+
 		msi_controller_node = of_find_node_by_phandle(phandle);
 
 		matched = (masked_rid >= rid_base &&
@@ -655,7 +663,7 @@ static u32 __of_msi_map_rid(struct devic
 	if (!matched)
 		return rid_out;
 
-	rid_out = masked_rid + msi_base;
+	rid_out = masked_rid - rid_base + msi_base;
 	dev_dbg(dev,
 		"msi-map at: %s, using mask %08x, rid-base: %08x, msi-base: %08x, length: %08x, rid: %08x -> %08x\n",
 		dev_name(parent_dev), map_mask, rid_base, msi_base,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/of/of_private.h linux-libre-4.4.107-gnu/drivers/of/of_private.h
--- linux-libre-4.4-gnu/drivers/of/of_private.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/of/of_private.h	2017-12-20 04:05:01.000000000 -0500
@@ -81,6 +81,9 @@ extern int __of_attach_node_sysfs(struct
 extern void __of_detach_node(struct device_node *np);
 extern void __of_detach_node_sysfs(struct device_node *np);
 
+extern void __of_sysfs_remove_bin_file(struct device_node *np,
+				       struct property *prop);
+
 /* iterators for transactions, used for overlays */
 /* forward iterator */
 #define for_each_transaction_entry(_oft, _te) \
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/of/of_reserved_mem.c linux-libre-4.4.107-gnu/drivers/of/of_reserved_mem.c
--- linux-libre-4.4-gnu/drivers/of/of_reserved_mem.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/of/of_reserved_mem.c	2017-12-20 04:05:01.000000000 -0500
@@ -32,11 +32,13 @@ int __init __weak early_init_dt_alloc_re
 	phys_addr_t align, phys_addr_t start, phys_addr_t end, bool nomap,
 	phys_addr_t *res_base)
 {
+	phys_addr_t base;
 	/*
 	 * We use __memblock_alloc_base() because memblock_alloc_base()
 	 * panic()s on allocation failure.
 	 */
-	phys_addr_t base = __memblock_alloc_base(size, align, end);
+	end = !end ? MEMBLOCK_ALLOC_ANYWHERE : end;
+	base = __memblock_alloc_base(size, align, end);
 	if (!base)
 		return -ENOMEM;
 
@@ -125,8 +127,12 @@ static int __init __reserved_mem_alloc_s
 	}
 
 	/* Need adjust the alignment to satisfy the CMA requirement */
-	if (IS_ENABLED(CONFIG_CMA) && of_flat_dt_is_compatible(node, "shared-dma-pool"))
-		align = max(align, (phys_addr_t)PAGE_SIZE << max(MAX_ORDER - 1, pageblock_order));
+	if (IS_ENABLED(CONFIG_CMA) && of_flat_dt_is_compatible(node, "shared-dma-pool")) {
+		unsigned long order =
+			max_t(unsigned long, MAX_ORDER - 1, pageblock_order);
+
+		align = max(align, (phys_addr_t)PAGE_SIZE << order);
+	}
 
 	prop = of_get_flat_dt_prop(node, "alloc-ranges", &len);
 	if (prop) {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/parisc/ccio-dma.c linux-libre-4.4.107-gnu/drivers/parisc/ccio-dma.c
--- linux-libre-4.4-gnu/drivers/parisc/ccio-dma.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/parisc/ccio-dma.c	2017-12-20 04:05:01.000000000 -0500
@@ -741,6 +741,8 @@ ccio_map_single(struct device *dev, void
 
 	BUG_ON(!dev);
 	ioc = GET_IOC(dev);
+	if (!ioc)
+		return DMA_ERROR_CODE;
 
 	BUG_ON(size <= 0);
 
@@ -805,6 +807,10 @@ ccio_unmap_single(struct device *dev, dm
 	
 	BUG_ON(!dev);
 	ioc = GET_IOC(dev);
+	if (!ioc) {
+		WARN_ON(!ioc);
+		return;
+	}
 
 	DBG_RUN("%s() iovp 0x%lx/%x\n",
 		__func__, (long)iova, size);
@@ -908,6 +914,8 @@ ccio_map_sg(struct device *dev, struct s
 	
 	BUG_ON(!dev);
 	ioc = GET_IOC(dev);
+	if (!ioc)
+		return 0;
 	
 	DBG_RUN_SG("%s() START %d entries\n", __func__, nents);
 
@@ -980,6 +988,10 @@ ccio_unmap_sg(struct device *dev, struct
 
 	BUG_ON(!dev);
 	ioc = GET_IOC(dev);
+	if (!ioc) {
+		WARN_ON(!ioc);
+		return;
+	}
 
 	DBG_RUN_SG("%s() START %d entries, %p,%x\n",
 		__func__, nents, sg_virt(sglist), sglist->length);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/parisc/dino.c linux-libre-4.4.107-gnu/drivers/parisc/dino.c
--- linux-libre-4.4-gnu/drivers/parisc/dino.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/parisc/dino.c	2017-12-20 04:05:01.000000000 -0500
@@ -154,7 +154,10 @@ struct dino_device
 };
 
 /* Looks nice and keeps the compiler happy */
-#define DINO_DEV(d) ((struct dino_device *) d)
+#define DINO_DEV(d) ({				\
+	void *__pdata = d;			\
+	BUG_ON(!__pdata);			\
+	(struct dino_device *)__pdata; })
 
 
 /*
@@ -951,7 +954,7 @@ static int __init dino_probe(struct pari
 
 	dino_dev->hba.dev = dev;
 	dino_dev->hba.base_addr = ioremap_nocache(hpa, 4096);
-	dino_dev->hba.lmmio_space_offset = 0;	/* CPU addrs == bus addrs */
+	dino_dev->hba.lmmio_space_offset = PCI_F_EXTEND;
 	spin_lock_init(&dino_dev->dinosaur_pen);
 	dino_dev->hba.iommu = ccio_get_iommu(dev);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/parisc/lba_pci.c linux-libre-4.4.107-gnu/drivers/parisc/lba_pci.c
--- linux-libre-4.4-gnu/drivers/parisc/lba_pci.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/parisc/lba_pci.c	2017-12-20 04:05:01.000000000 -0500
@@ -111,8 +111,10 @@ static u32 lba_t32;
 
 
 /* Looks nice and keeps the compiler happy */
-#define LBA_DEV(d) ((struct lba_device *) (d))
-
+#define LBA_DEV(d) ({				\
+	void *__pdata = d;			\
+	BUG_ON(!__pdata);			\
+	(struct lba_device *)__pdata; })
 
 /*
 ** Only allow 8 subsidiary busses per LBA
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/parisc/sba_iommu.c linux-libre-4.4.107-gnu/drivers/parisc/sba_iommu.c
--- linux-libre-4.4-gnu/drivers/parisc/sba_iommu.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/parisc/sba_iommu.c	2017-12-20 04:05:01.000000000 -0500
@@ -691,6 +691,8 @@ static int sba_dma_supported( struct dev
 		return 0;
 
 	ioc = GET_IOC(dev);
+	if (!ioc)
+		return 0;
 
 	/*
 	 * check if mask is >= than the current max IO Virt Address
@@ -722,6 +724,8 @@ sba_map_single(struct device *dev, void
 	int pide;
 
 	ioc = GET_IOC(dev);
+	if (!ioc)
+		return DMA_ERROR_CODE;
 
 	/* save offset bits */
 	offset = ((dma_addr_t) (long) addr) & ~IOVP_MASK;
@@ -803,6 +807,10 @@ sba_unmap_single(struct device *dev, dma
 	DBG_RUN("%s() iovp 0x%lx/%x\n", __func__, (long) iova, size);
 
 	ioc = GET_IOC(dev);
+	if (!ioc) {
+		WARN_ON(!ioc);
+		return;
+	}
 	offset = iova & ~IOVP_MASK;
 	iova ^= offset;        /* clear offset bits */
 	size += offset;
@@ -942,6 +950,8 @@ sba_map_sg(struct device *dev, struct sc
 	DBG_RUN_SG("%s() START %d entries\n", __func__, nents);
 
 	ioc = GET_IOC(dev);
+	if (!ioc)
+		return 0;
 
 	/* Fast path single entry scatterlists. */
 	if (nents == 1) {
@@ -1027,6 +1037,10 @@ sba_unmap_sg(struct device *dev, struct
 		__func__, nents, sg_virt(sglist), sglist->length);
 
 	ioc = GET_IOC(dev);
+	if (!ioc) {
+		WARN_ON(!ioc);
+		return;
+	}
 
 #ifdef SBA_COLLECT_STATS
 	ioc->usg_calls++;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/parport/parport_gsc.c linux-libre-4.4.107-gnu/drivers/parport/parport_gsc.c
--- linux-libre-4.4-gnu/drivers/parport/parport_gsc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/parport/parport_gsc.c	2017-12-20 04:05:01.000000000 -0500
@@ -293,7 +293,7 @@ struct parport *parport_gsc_probe_port(u
 		p->irq = PARPORT_IRQ_NONE;
 	}
 	if (p->irq != PARPORT_IRQ_NONE) {
-		printk(", irq %d", p->irq);
+		pr_cont(", irq %d", p->irq);
 
 		if (p->dma == PARPORT_DMA_AUTO) {
 			p->dma = PARPORT_DMA_NONE;
@@ -303,8 +303,8 @@ struct parport *parport_gsc_probe_port(u
                                            is mandatory (see above) */
 		p->dma = PARPORT_DMA_NONE;
 
-	printk(" [");
-#define printmode(x) {if(p->modes&PARPORT_MODE_##x){printk("%s%s",f?",":"",#x);f++;}}
+	pr_cont(" [");
+#define printmode(x) {if(p->modes&PARPORT_MODE_##x){pr_cont("%s%s",f?",":"",#x);f++;}}
 	{
 		int f = 0;
 		printmode(PCSPP);
@@ -315,7 +315,7 @@ struct parport *parport_gsc_probe_port(u
 //		printmode(DMA);
 	}
 #undef printmode
-	printk("]\n");
+	pr_cont("]\n");
 
 	if (p->irq != PARPORT_IRQ_NONE) {
 		if (request_irq (p->irq, parport_irq_handler,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/parport/share.c linux-libre-4.4.107-gnu/drivers/parport/share.c
--- linux-libre-4.4-gnu/drivers/parport/share.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/parport/share.c	2017-12-20 04:05:01.000000000 -0500
@@ -936,8 +936,10 @@ parport_register_dev_model(struct parpor
 	 * pardevice fields. -arca
 	 */
 	port->ops->init_state(par_dev, par_dev->state);
-	port->proc_device = par_dev;
-	parport_device_proc_register(par_dev);
+	if (!test_and_set_bit(PARPORT_DEVPROC_REGISTERED, &port->devflags)) {
+		port->proc_device = par_dev;
+		parport_device_proc_register(par_dev);
+	}
 
 	return par_dev;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pci/bus.c linux-libre-4.4.107-gnu/drivers/pci/bus.c
--- linux-libre-4.4-gnu/drivers/pci/bus.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/pci/bus.c	2017-12-20 04:05:01.000000000 -0500
@@ -140,6 +140,8 @@ static int pci_bus_alloc_from_region(str
 	type_mask |= IORESOURCE_TYPE_BITS;
 
 	pci_bus_for_each_resource(bus, r, i) {
+		resource_size_t min_used = min;
+
 		if (!r)
 			continue;
 
@@ -163,12 +165,12 @@ static int pci_bus_alloc_from_region(str
 		 * overrides "min".
 		 */
 		if (avail.start)
-			min = avail.start;
+			min_used = avail.start;
 
 		max = avail.end;
 
 		/* Ok, try it out.. */
-		ret = allocate_resource(r, res, size, min, max,
+		ret = allocate_resource(r, res, size, min_used, max,
 					align, alignf, alignf_data);
 		if (ret == 0)
 			return 0;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pci/host/pci-dra7xx.c linux-libre-4.4.107-gnu/drivers/pci/host/pci-dra7xx.c
--- linux-libre-4.4-gnu/drivers/pci/host/pci-dra7xx.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/pci/host/pci-dra7xx.c	2017-12-20 04:05:01.000000000 -0500
@@ -302,7 +302,8 @@ static int __init dra7xx_add_pcie_port(s
 	}
 
 	ret = devm_request_irq(&pdev->dev, pp->irq,
-			       dra7xx_pcie_msi_irq_handler, IRQF_SHARED,
+			       dra7xx_pcie_msi_irq_handler,
+			       IRQF_SHARED | IRQF_NO_THREAD,
 			       "dra7-pcie-msi",	pp);
 	if (ret) {
 		dev_err(&pdev->dev, "failed to request irq\n");
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pci/host/pcie-rcar.c linux-libre-4.4.107-gnu/drivers/pci/host/pcie-rcar.c
--- linux-libre-4.4-gnu/drivers/pci/host/pcie-rcar.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/pci/host/pcie-rcar.c	2017-12-20 04:05:01.000000000 -0500
@@ -720,14 +720,16 @@ static int rcar_pcie_enable_msi(struct r
 
 	/* Two irqs are for MSI, but they are also used for non-MSI irqs */
 	err = devm_request_irq(&pdev->dev, msi->irq1, rcar_pcie_msi_irq,
-			       IRQF_SHARED, rcar_msi_irq_chip.name, pcie);
+			       IRQF_SHARED | IRQF_NO_THREAD,
+			       rcar_msi_irq_chip.name, pcie);
 	if (err < 0) {
 		dev_err(&pdev->dev, "failed to request IRQ: %d\n", err);
 		goto err;
 	}
 
 	err = devm_request_irq(&pdev->dev, msi->irq2, rcar_pcie_msi_irq,
-			       IRQF_SHARED, rcar_msi_irq_chip.name, pcie);
+			       IRQF_SHARED | IRQF_NO_THREAD,
+			       rcar_msi_irq_chip.name, pcie);
 	if (err < 0) {
 		dev_err(&pdev->dev, "failed to request IRQ: %d\n", err);
 		goto err;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pci/host/pcie-spear13xx.c linux-libre-4.4.107-gnu/drivers/pci/host/pcie-spear13xx.c
--- linux-libre-4.4-gnu/drivers/pci/host/pcie-spear13xx.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/pci/host/pcie-spear13xx.c	2017-12-20 04:05:01.000000000 -0500
@@ -279,7 +279,8 @@ static int spear13xx_add_pcie_port(struc
 		return -ENODEV;
 	}
 	ret = devm_request_irq(dev, pp->irq, spear13xx_pcie_irq_handler,
-			       IRQF_SHARED, "spear1340-pcie", pp);
+			       IRQF_SHARED | IRQF_NO_THREAD,
+			       "spear1340-pcie", pp);
 	if (ret) {
 		dev_err(dev, "failed to request irq %d\n", pp->irq);
 		return ret;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pci/host/pcie-xilinx.c linux-libre-4.4.107-gnu/drivers/pci/host/pcie-xilinx.c
--- linux-libre-4.4-gnu/drivers/pci/host/pcie-xilinx.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/pci/host/pcie-xilinx.c	2017-12-20 04:05:01.000000000 -0500
@@ -781,7 +781,8 @@ static int xilinx_pcie_parse_dt(struct x
 
 	port->irq = irq_of_parse_and_map(node, 0);
 	err = devm_request_irq(dev, port->irq, xilinx_pcie_intr_handler,
-			       IRQF_SHARED, "xilinx-pcie", port);
+			       IRQF_SHARED | IRQF_NO_THREAD,
+			       "xilinx-pcie", port);
 	if (err) {
 		dev_err(dev, "unable to request irq %d\n", port->irq);
 		return err;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pci/host/pci-exynos.c linux-libre-4.4.107-gnu/drivers/pci/host/pci-exynos.c
--- linux-libre-4.4-gnu/drivers/pci/host/pci-exynos.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/pci/host/pci-exynos.c	2017-12-20 04:05:01.000000000 -0500
@@ -522,7 +522,8 @@ static int __init exynos_add_pcie_port(s
 
 		ret = devm_request_irq(&pdev->dev, pp->msi_irq,
 					exynos_pcie_msi_irq_handler,
-					IRQF_SHARED, "exynos-pcie", pp);
+					IRQF_SHARED | IRQF_NO_THREAD,
+					"exynos-pcie", pp);
 		if (ret) {
 			dev_err(&pdev->dev, "failed to request msi irq\n");
 			return ret;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pci/host/pci-imx6.c linux-libre-4.4.107-gnu/drivers/pci/host/pci-imx6.c
--- linux-libre-4.4-gnu/drivers/pci/host/pci-imx6.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/pci/host/pci-imx6.c	2017-12-20 04:05:01.000000000 -0500
@@ -537,7 +537,8 @@ static int __init imx6_add_pcie_port(str
 
 		ret = devm_request_irq(&pdev->dev, pp->msi_irq,
 				       imx6_pcie_msi_handler,
-				       IRQF_SHARED, "mx6-pcie-msi", pp);
+				       IRQF_SHARED | IRQF_NO_THREAD,
+				       "mx6-pcie-msi", pp);
 		if (ret) {
 			dev_err(&pdev->dev, "failed to request MSI irq\n");
 			return ret;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pci/host/pci-keystone-dw.c linux-libre-4.4.107-gnu/drivers/pci/host/pci-keystone-dw.c
--- linux-libre-4.4-gnu/drivers/pci/host/pci-keystone-dw.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/pci/host/pci-keystone-dw.c	2017-12-20 04:05:01.000000000 -0500
@@ -58,11 +58,6 @@
 
 #define to_keystone_pcie(x)	container_of(x, struct keystone_pcie, pp)
 
-static inline struct pcie_port *sys_to_pcie(struct pci_sys_data *sys)
-{
-	return sys->private_data;
-}
-
 static inline void update_reg_offset_bit_pos(u32 offset, u32 *reg_offset,
 					     u32 *bit_pos)
 {
@@ -108,7 +103,7 @@ static void ks_dw_pcie_msi_irq_ack(struc
 	struct pcie_port *pp;
 
 	msi = irq_data_get_msi_desc(d);
-	pp = sys_to_pcie(msi_desc_to_pci_sysdata(msi));
+	pp = (struct pcie_port *) msi_desc_to_pci_sysdata(msi);
 	ks_pcie = to_keystone_pcie(pp);
 	offset = d->irq - irq_linear_revmap(pp->irq_domain, 0);
 	update_reg_offset_bit_pos(offset, &reg_offset, &bit_pos);
@@ -146,7 +141,7 @@ static void ks_dw_pcie_msi_irq_mask(stru
 	u32 offset;
 
 	msi = irq_data_get_msi_desc(d);
-	pp = sys_to_pcie(msi_desc_to_pci_sysdata(msi));
+	pp = (struct pcie_port *) msi_desc_to_pci_sysdata(msi);
 	ks_pcie = to_keystone_pcie(pp);
 	offset = d->irq - irq_linear_revmap(pp->irq_domain, 0);
 
@@ -167,7 +162,7 @@ static void ks_dw_pcie_msi_irq_unmask(st
 	u32 offset;
 
 	msi = irq_data_get_msi_desc(d);
-	pp = sys_to_pcie(msi_desc_to_pci_sysdata(msi));
+	pp = (struct pcie_port *) msi_desc_to_pci_sysdata(msi);
 	ks_pcie = to_keystone_pcie(pp);
 	offset = d->irq - irq_linear_revmap(pp->irq_domain, 0);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pci/host/pci-mvebu.c linux-libre-4.4.107-gnu/drivers/pci/host/pci-mvebu.c
--- linux-libre-4.4-gnu/drivers/pci/host/pci-mvebu.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/pci/host/pci-mvebu.c	2017-12-20 04:05:01.000000000 -0500
@@ -131,6 +131,12 @@ struct mvebu_pcie {
 	int nports;
 };
 
+struct mvebu_pcie_window {
+	phys_addr_t base;
+	phys_addr_t remap;
+	size_t size;
+};
+
 /* Structure representing one PCIe interface */
 struct mvebu_pcie_port {
 	char *name;
@@ -148,10 +154,8 @@ struct mvebu_pcie_port {
 	struct mvebu_sw_pci_bridge bridge;
 	struct device_node *dn;
 	struct mvebu_pcie *pcie;
-	phys_addr_t memwin_base;
-	size_t memwin_size;
-	phys_addr_t iowin_base;
-	size_t iowin_size;
+	struct mvebu_pcie_window memwin;
+	struct mvebu_pcie_window iowin;
 	u32 saved_pcie_stat;
 };
 
@@ -377,23 +381,45 @@ static void mvebu_pcie_add_windows(struc
 	}
 }
 
+static void mvebu_pcie_set_window(struct mvebu_pcie_port *port,
+				  unsigned int target, unsigned int attribute,
+				  const struct mvebu_pcie_window *desired,
+				  struct mvebu_pcie_window *cur)
+{
+	if (desired->base == cur->base && desired->remap == cur->remap &&
+	    desired->size == cur->size)
+		return;
+
+	if (cur->size != 0) {
+		mvebu_pcie_del_windows(port, cur->base, cur->size);
+		cur->size = 0;
+		cur->base = 0;
+
+		/*
+		 * If something tries to change the window while it is enabled
+		 * the change will not be done atomically. That would be
+		 * difficult to do in the general case.
+		 */
+	}
+
+	if (desired->size == 0)
+		return;
+
+	mvebu_pcie_add_windows(port, target, attribute, desired->base,
+			       desired->size, desired->remap);
+	*cur = *desired;
+}
+
 static void mvebu_pcie_handle_iobase_change(struct mvebu_pcie_port *port)
 {
-	phys_addr_t iobase;
+	struct mvebu_pcie_window desired = {};
 
 	/* Are the new iobase/iolimit values invalid? */
 	if (port->bridge.iolimit < port->bridge.iobase ||
 	    port->bridge.iolimitupper < port->bridge.iobaseupper ||
 	    !(port->bridge.command & PCI_COMMAND_IO)) {
-
-		/* If a window was configured, remove it */
-		if (port->iowin_base) {
-			mvebu_pcie_del_windows(port, port->iowin_base,
-					       port->iowin_size);
-			port->iowin_base = 0;
-			port->iowin_size = 0;
-		}
-
+		mvebu_pcie_set_window(port, port->io_target, port->io_attr,
+				      &desired, &port->iowin);
 		return;
 	}
 
@@ -410,32 +436,27 @@ static void mvebu_pcie_handle_iobase_cha
 	 * specifications. iobase is the bus address, port->iowin_base
 	 * is the CPU address.
 	 */
-	iobase = ((port->bridge.iobase & 0xF0) << 8) |
-		(port->bridge.iobaseupper << 16);
-	port->iowin_base = port->pcie->io.start + iobase;
-	port->iowin_size = ((0xFFF | ((port->bridge.iolimit & 0xF0) << 8) |
-			    (port->bridge.iolimitupper << 16)) -
-			    iobase) + 1;
+	desired.remap = ((port->bridge.iobase & 0xF0) << 8) |
+			(port->bridge.iobaseupper << 16);
+	desired.base = port->pcie->io.start + desired.remap;
+	desired.size = ((0xFFF | ((port->bridge.iolimit & 0xF0) << 8) |
+			 (port->bridge.iolimitupper << 16)) -
+			desired.remap) +
+		       1;
 
-	mvebu_pcie_add_windows(port, port->io_target, port->io_attr,
-			       port->iowin_base, port->iowin_size,
-			       iobase);
+	mvebu_pcie_set_window(port, port->io_target, port->io_attr, &desired,
+			      &port->iowin);
 }
 
 static void mvebu_pcie_handle_membase_change(struct mvebu_pcie_port *port)
 {
+	struct mvebu_pcie_window desired = {.remap = MVEBU_MBUS_NO_REMAP};
+
 	/* Are the new membase/memlimit values invalid? */
 	if (port->bridge.memlimit < port->bridge.membase ||
 	    !(port->bridge.command & PCI_COMMAND_MEMORY)) {
-
-		/* If a window was configured, remove it */
-		if (port->memwin_base) {
-			mvebu_pcie_del_windows(port, port->memwin_base,
-					       port->memwin_size);
-			port->memwin_base = 0;
-			port->memwin_size = 0;
-		}
-
+		mvebu_pcie_set_window(port, port->mem_target, port->mem_attr,
+				      &desired, &port->memwin);
 		return;
 	}
 
@@ -445,14 +466,12 @@ static void mvebu_pcie_handle_membase_ch
 	 * window to setup, according to the PCI-to-PCI bridge
 	 * specifications.
 	 */
-	port->memwin_base  = ((port->bridge.membase & 0xFFF0) << 16);
-	port->memwin_size  =
-		(((port->bridge.memlimit & 0xFFF0) << 16) | 0xFFFFF) -
-		port->memwin_base + 1;
+	desired.base = ((port->bridge.membase & 0xFFF0) << 16);
+	desired.size = (((port->bridge.memlimit & 0xFFF0) << 16) | 0xFFFFF) -
+		       desired.base + 1;
 
-	mvebu_pcie_add_windows(port, port->mem_target, port->mem_attr,
-			       port->memwin_base, port->memwin_size,
-			       MVEBU_MBUS_NO_REMAP);
+	mvebu_pcie_set_window(port, port->mem_target, port->mem_attr, &desired,
+			      &port->memwin);
 }
 
 /*
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pci/host/pci-tegra.c linux-libre-4.4.107-gnu/drivers/pci/host/pci-tegra.c
--- linux-libre-4.4-gnu/drivers/pci/host/pci-tegra.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/pci/host/pci-tegra.c	2017-12-20 04:05:01.000000000 -0500
@@ -1288,7 +1288,7 @@ static int tegra_pcie_enable_msi(struct
 
 	msi->irq = err;
 
-	err = request_irq(msi->irq, tegra_pcie_msi_irq, 0,
+	err = request_irq(msi->irq, tegra_pcie_msi_irq, IRQF_NO_THREAD,
 			  tegra_msi_irq_chip.name, pcie);
 	if (err < 0) {
 		dev_err(&pdev->dev, "failed to request IRQ: %d\n", err);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pci/hotplug/acpiphp_glue.c linux-libre-4.4.107-gnu/drivers/pci/hotplug/acpiphp_glue.c
--- linux-libre-4.4-gnu/drivers/pci/hotplug/acpiphp_glue.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/pci/hotplug/acpiphp_glue.c	2017-12-20 04:05:01.000000000 -0500
@@ -953,8 +953,10 @@ int acpiphp_enable_slot(struct acpiphp_s
 {
 	pci_lock_rescan_remove();
 
-	if (slot->flags & SLOT_IS_GOING_AWAY)
+	if (slot->flags & SLOT_IS_GOING_AWAY) {
+		pci_unlock_rescan_remove();
 		return -ENODEV;
+	}
 
 	/* configure all functions */
 	if (!(slot->flags & SLOT_ENABLED))
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pci/hotplug/rpadlpar_core.c linux-libre-4.4.107-gnu/drivers/pci/hotplug/rpadlpar_core.c
--- linux-libre-4.4-gnu/drivers/pci/hotplug/rpadlpar_core.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/pci/hotplug/rpadlpar_core.c	2017-12-20 04:05:01.000000000 -0500
@@ -258,8 +258,13 @@ static int dlpar_add_phb(char *drc_name,
 
 static int dlpar_add_vio_slot(char *drc_name, struct device_node *dn)
 {
-	if (vio_find_node(dn))
+	struct vio_dev *vio_dev;
+
+	vio_dev = vio_find_node(dn);
+	if (vio_dev) {
+		put_device(&vio_dev->dev);
 		return -EINVAL;
+	}
 
 	if (!vio_register_device_node(dn)) {
 		printk(KERN_ERR
@@ -335,6 +340,9 @@ static int dlpar_remove_vio_slot(char *d
 		return -EINVAL;
 
 	vio_unregister_device(vio_dev);
+
+	put_device(&vio_dev->dev);
+
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pci/hotplug/shpchp_hpc.c linux-libre-4.4.107-gnu/drivers/pci/hotplug/shpchp_hpc.c
--- linux-libre-4.4-gnu/drivers/pci/hotplug/shpchp_hpc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/pci/hotplug/shpchp_hpc.c	2017-12-20 04:05:01.000000000 -0500
@@ -1062,6 +1062,8 @@ int shpc_init(struct controller *ctrl, s
 		if (rc) {
 			ctrl_info(ctrl, "Can't get msi for the hotplug controller\n");
 			ctrl_info(ctrl, "Use INTx for the hotplug controller\n");
+		} else {
+			pci_set_master(pdev);
 		}
 
 		rc = request_irq(ctrl->pci_dev->irq, shpc_isr, IRQF_SHARED,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pci/iov.c linux-libre-4.4.107-gnu/drivers/pci/iov.c
--- linux-libre-4.4-gnu/drivers/pci/iov.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/pci/iov.c	2017-12-20 04:05:01.000000000 -0500
@@ -303,13 +303,6 @@ static int sriov_enable(struct pci_dev *
 			return rc;
 	}
 
-	pci_iov_set_numvfs(dev, nr_virtfn);
-	iov->ctrl |= PCI_SRIOV_CTRL_VFE | PCI_SRIOV_CTRL_MSE;
-	pci_cfg_access_lock(dev);
-	pci_write_config_word(dev, iov->pos + PCI_SRIOV_CTRL, iov->ctrl);
-	msleep(100);
-	pci_cfg_access_unlock(dev);
-
 	iov->initial_VFs = initial;
 	if (nr_virtfn < initial)
 		initial = nr_virtfn;
@@ -320,6 +313,13 @@ static int sriov_enable(struct pci_dev *
 		goto err_pcibios;
 	}
 
+	pci_iov_set_numvfs(dev, nr_virtfn);
+	iov->ctrl |= PCI_SRIOV_CTRL_VFE | PCI_SRIOV_CTRL_MSE;
+	pci_cfg_access_lock(dev);
+	pci_write_config_word(dev, iov->pos + PCI_SRIOV_CTRL, iov->ctrl);
+	msleep(100);
+	pci_cfg_access_unlock(dev);
+
 	for (i = 0; i < initial; i++) {
 		rc = virtfn_add(dev, i, 0);
 		if (rc)
@@ -555,21 +555,61 @@ void pci_iov_release(struct pci_dev *dev
 }
 
 /**
- * pci_iov_resource_bar - get position of the SR-IOV BAR
+ * pci_iov_update_resource - update a VF BAR
  * @dev: the PCI device
  * @resno: the resource number
  *
- * Returns position of the BAR encapsulated in the SR-IOV capability.
+ * Update a VF BAR in the SR-IOV capability of a PF.
  */
-int pci_iov_resource_bar(struct pci_dev *dev, int resno)
+void pci_iov_update_resource(struct pci_dev *dev, int resno)
 {
-	if (resno < PCI_IOV_RESOURCES || resno > PCI_IOV_RESOURCE_END)
-		return 0;
+	struct pci_sriov *iov = dev->is_physfn ? dev->sriov : NULL;
+	struct resource *res = dev->resource + resno;
+	int vf_bar = resno - PCI_IOV_RESOURCES;
+	struct pci_bus_region region;
+	u16 cmd;
+	u32 new;
+	int reg;
 
-	BUG_ON(!dev->is_physfn);
+	/*
+	 * The generic pci_restore_bars() path calls this for all devices,
+	 * including VFs and non-SR-IOV devices.  If this is not a PF, we
+	 * have nothing to do.
+	 */
+	if (!iov)
+		return;
 
-	return dev->sriov->pos + PCI_SRIOV_BAR +
-		4 * (resno - PCI_IOV_RESOURCES);
+	pci_read_config_word(dev, iov->pos + PCI_SRIOV_CTRL, &cmd);
+	if ((cmd & PCI_SRIOV_CTRL_VFE) && (cmd & PCI_SRIOV_CTRL_MSE)) {
+		dev_WARN(&dev->dev, "can't update enabled VF BAR%d %pR\n",
+			 vf_bar, res);
+		return;
+	}
+
+	/*
+	 * Ignore unimplemented BARs, unused resource slots for 64-bit
+	 * BARs, and non-movable resources, e.g., those described via
+	 * Enhanced Allocation.
+	 */
+	if (!res->flags)
+		return;
+
+	if (res->flags & IORESOURCE_UNSET)
+		return;
+
+	if (res->flags & IORESOURCE_PCI_FIXED)
+		return;
+
+	pcibios_resource_to_bus(dev->bus, &region, res);
+	new = region.start;
+	new |= res->flags & ~PCI_BASE_ADDRESS_MEM_MASK;
+
+	reg = iov->pos + PCI_SRIOV_BAR + 4 * vf_bar;
+	pci_write_config_dword(dev, reg, new);
+	if (res->flags & IORESOURCE_MEM_64) {
+		new = region.start >> 16 >> 16;
+		pci_write_config_dword(dev, reg + 4, new);
+	}
 }
 
 resource_size_t __weak pcibios_iov_resource_alignment(struct pci_dev *dev,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pci/msi.c linux-libre-4.4.107-gnu/drivers/pci/msi.c
--- linux-libre-4.4-gnu/drivers/pci/msi.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/pci/msi.c	2017-12-20 04:05:01.000000000 -0500
@@ -1278,6 +1278,8 @@ struct irq_domain *pci_msi_create_irq_do
 	if (info->flags & MSI_FLAG_USE_DEF_CHIP_OPS)
 		pci_msi_domain_update_chip_ops(info);
 
+	info->flags |= MSI_FLAG_ACTIVATE_EARLY;
+
 	domain = msi_create_irq_domain(fwnode, info, parent);
 	if (!domain)
 		return NULL;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pci/pci.c linux-libre-4.4.107-gnu/drivers/pci/pci.c
--- linux-libre-4.4-gnu/drivers/pci/pci.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/pci/pci.c	2017-12-20 04:05:01.000000000 -0500
@@ -519,10 +519,6 @@ static void pci_restore_bars(struct pci_
 {
 	int i;
 
-	/* Per SR-IOV spec 3.4.1.11, VF BARs are RO zero */
-	if (dev->is_virtfn)
-		return;
-
 	for (i = 0; i < PCI_BRIDGE_RESOURCES; i++)
 		pci_update_resource(dev, i);
 }
@@ -1736,8 +1732,8 @@ static void pci_pme_list_scan(struct wor
 		}
 	}
 	if (!list_empty(&pci_pme_list))
-		schedule_delayed_work(&pci_pme_work,
-				      msecs_to_jiffies(PME_TIMEOUT));
+		queue_delayed_work(system_freezable_wq, &pci_pme_work,
+				   msecs_to_jiffies(PME_TIMEOUT));
 	mutex_unlock(&pci_pme_list_mutex);
 }
 
@@ -1802,8 +1798,9 @@ void pci_pme_active(struct pci_dev *dev,
 			mutex_lock(&pci_pme_list_mutex);
 			list_add(&pme_dev->list, &pci_pme_list);
 			if (list_is_singular(&pci_pme_list))
-				schedule_delayed_work(&pci_pme_work,
-						      msecs_to_jiffies(PME_TIMEOUT));
+				queue_delayed_work(system_freezable_wq,
+						   &pci_pme_work,
+						   msecs_to_jiffies(PME_TIMEOUT));
 			mutex_unlock(&pci_pme_list_mutex);
 		} else {
 			mutex_lock(&pci_pme_list_mutex);
@@ -2043,6 +2040,10 @@ bool pci_dev_run_wake(struct pci_dev *de
 	if (!dev->pme_support)
 		return false;
 
+	/* PME-capable in principle, but not from the intended sleep state */
+	if (!pci_pme_capable(dev, pci_target_state(dev)))
+		return false;
+
 	while (bus->parent) {
 		struct pci_dev *bridge = bus->self;
 
@@ -4468,36 +4469,6 @@ int pci_select_bars(struct pci_dev *dev,
 }
 EXPORT_SYMBOL(pci_select_bars);
 
-/**
- * pci_resource_bar - get position of the BAR associated with a resource
- * @dev: the PCI device
- * @resno: the resource number
- * @type: the BAR type to be filled in
- *
- * Returns BAR position in config space, or 0 if the BAR is invalid.
- */
-int pci_resource_bar(struct pci_dev *dev, int resno, enum pci_bar_type *type)
-{
-	int reg;
-
-	if (resno < PCI_ROM_RESOURCE) {
-		*type = pci_bar_unknown;
-		return PCI_BASE_ADDRESS_0 + 4 * resno;
-	} else if (resno == PCI_ROM_RESOURCE) {
-		*type = pci_bar_mem32;
-		return dev->rom_base_reg;
-	} else if (resno < PCI_BRIDGE_RESOURCES) {
-		/* device specific resource */
-		*type = pci_bar_unknown;
-		reg = pci_iov_resource_bar(dev, resno);
-		if (reg)
-			return reg;
-	}
-
-	dev_err(&dev->dev, "BAR %d: invalid resource\n", resno);
-	return 0;
-}
-
 /* Some architectures require additional programming to enable VGA */
 static arch_set_vga_state_t arch_set_vga_state;
 
@@ -4772,8 +4743,10 @@ int pci_get_new_domain_nr(void)
 void pci_bus_assign_domain_nr(struct pci_bus *bus, struct device *parent)
 {
 	static int use_dt_domains = -1;
-	int domain = of_get_pci_domain_nr(parent->of_node);
+	int domain = -1;
 
+	if (parent)
+		domain = of_get_pci_domain_nr(parent->of_node);
 	/*
 	 * Check DT domain and use_dt_domains values.
 	 *
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pci/pci-driver.c linux-libre-4.4.107-gnu/drivers/pci/pci-driver.c
--- linux-libre-4.4-gnu/drivers/pci/pci-driver.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/pci/pci-driver.c	2017-12-20 04:05:01.000000000 -0500
@@ -945,6 +945,7 @@ static int pci_pm_thaw_noirq(struct devi
 		return pci_legacy_resume_early(dev);
 
 	pci_update_current_state(pci_dev, PCI_D0);
+	pci_restore_state(pci_dev);
 
 	if (drv && drv->pm && drv->pm->thaw_noirq)
 		error = drv->pm->thaw_noirq(dev);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pci/pcie/aer/aerdrv.c linux-libre-4.4.107-gnu/drivers/pci/pcie/aer/aerdrv.c
--- linux-libre-4.4-gnu/drivers/pci/pcie/aer/aerdrv.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/pci/pcie/aer/aerdrv.c	2017-12-20 04:05:01.000000000 -0500
@@ -262,7 +262,6 @@ static struct aer_rpc *aer_alloc_rpc(str
 	rpc->rpd = dev;
 	INIT_WORK(&rpc->dpc_handler, aer_isr);
 	mutex_init(&rpc->rpc_mutex);
-	init_waitqueue_head(&rpc->wait_release);
 
 	/* Use PCIe bus function to store rpc into PCIe device */
 	set_service_data(dev, rpc);
@@ -285,8 +284,7 @@ static void aer_remove(struct pcie_devic
 		if (rpc->isr)
 			free_irq(dev->irq, dev);
 
-		wait_event(rpc->wait_release, rpc->prod_idx == rpc->cons_idx);
-
+		flush_work(&rpc->dpc_handler);
 		aer_disable_rootport(rpc);
 		kfree(rpc);
 		set_service_data(dev, NULL);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pci/pcie/aer/aerdrv_core.c linux-libre-4.4.107-gnu/drivers/pci/pcie/aer/aerdrv_core.c
--- linux-libre-4.4-gnu/drivers/pci/pcie/aer/aerdrv_core.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/pci/pcie/aer/aerdrv_core.c	2017-12-20 04:05:01.000000000 -0500
@@ -811,8 +811,6 @@ void aer_isr(struct work_struct *work)
 	while (get_e_source(rpc, &e_src))
 		aer_isr_one_error(p_device, &e_src);
 	mutex_unlock(&rpc->rpc_mutex);
-
-	wake_up(&rpc->wait_release);
 }
 
 /**
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pci/pcie/aer/aerdrv.h linux-libre-4.4.107-gnu/drivers/pci/pcie/aer/aerdrv.h
--- linux-libre-4.4-gnu/drivers/pci/pcie/aer/aerdrv.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/pci/pcie/aer/aerdrv.h	2017-12-20 04:05:01.000000000 -0500
@@ -72,7 +72,6 @@ struct aer_rpc {
 					 * recovery on the same
 					 * root port hierarchy
 					 */
-	wait_queue_head_t wait_release;
 };
 
 struct aer_broadcast_data {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pci/pcie/aer/aer_inject.c linux-libre-4.4.107-gnu/drivers/pci/pcie/aer/aer_inject.c
--- linux-libre-4.4-gnu/drivers/pci/pcie/aer/aer_inject.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/pci/pcie/aer/aer_inject.c	2017-12-20 04:05:01.000000000 -0500
@@ -283,20 +283,6 @@ out:
 	return 0;
 }
 
-static struct pci_dev *pcie_find_root_port(struct pci_dev *dev)
-{
-	while (1) {
-		if (!pci_is_pcie(dev))
-			break;
-		if (pci_pcie_type(dev) == PCI_EXP_TYPE_ROOT_PORT)
-			return dev;
-		if (!dev->bus->self)
-			break;
-		dev = dev->bus->self;
-	}
-	return NULL;
-}
-
 static int find_aer_device_iter(struct device *device, void *data)
 {
 	struct pcie_device **result = data;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pci/pcie/aspm.c linux-libre-4.4.107-gnu/drivers/pci/pcie/aspm.c
--- linux-libre-4.4-gnu/drivers/pci/pcie/aspm.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/pci/pcie/aspm.c	2017-12-20 04:05:01.000000000 -0500
@@ -518,25 +518,32 @@ static struct pcie_link_state *alloc_pci
 	link = kzalloc(sizeof(*link), GFP_KERNEL);
 	if (!link)
 		return NULL;
+
 	INIT_LIST_HEAD(&link->sibling);
 	INIT_LIST_HEAD(&link->children);
 	INIT_LIST_HEAD(&link->link);
 	link->pdev = pdev;
-	if (pci_pcie_type(pdev) != PCI_EXP_TYPE_ROOT_PORT) {
+
+	/*
+	 * Root Ports and PCI/PCI-X to PCIe Bridges are roots of PCIe
+	 * hierarchies.
+	 */
+	if (pci_pcie_type(pdev) == PCI_EXP_TYPE_ROOT_PORT ||
+	    pci_pcie_type(pdev) == PCI_EXP_TYPE_PCIE_BRIDGE) {
+		link->root = link;
+	} else {
 		struct pcie_link_state *parent;
+
 		parent = pdev->bus->parent->self->link_state;
 		if (!parent) {
 			kfree(link);
 			return NULL;
 		}
+
 		link->parent = parent;
+		link->root = link->parent->root;
 		list_add(&link->link, &parent->children);
 	}
-	/* Setup a pointer to the root port link */
-	if (!link->parent)
-		link->root = link;
-	else
-		link->root = link->parent->root;
 
 	list_add(&link->sibling, &link_list);
 	pdev->link_state = link;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pci/pcie/pme.c linux-libre-4.4.107-gnu/drivers/pci/pcie/pme.c
--- linux-libre-4.4-gnu/drivers/pci/pcie/pme.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/pci/pcie/pme.c	2017-12-20 04:05:01.000000000 -0500
@@ -233,6 +233,9 @@ static void pcie_pme_work_fn(struct work
 			break;
 
 		pcie_capability_read_dword(port, PCI_EXP_RTSTA, &rtsta);
+		if (rtsta == (u32) ~0)
+			break;
+
 		if (rtsta & PCI_EXP_RTSTA_PME) {
 			/*
 			 * Clear PME status of the port.  If there are other
@@ -280,7 +283,7 @@ static irqreturn_t pcie_pme_irq(int irq,
 	spin_lock_irqsave(&data->lock, flags);
 	pcie_capability_read_dword(port, PCI_EXP_RTSTA, &rtsta);
 
-	if (!(rtsta & PCI_EXP_RTSTA_PME)) {
+	if (rtsta == (u32) ~0 || !(rtsta & PCI_EXP_RTSTA_PME)) {
 		spin_unlock_irqrestore(&data->lock, flags);
 		return IRQ_NONE;
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pci/pci.h linux-libre-4.4.107-gnu/drivers/pci/pci.h
--- linux-libre-4.4-gnu/drivers/pci/pci.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/pci/pci.h	2017-12-20 04:05:01.000000000 -0500
@@ -232,7 +232,6 @@ bool pci_bus_read_dev_vendor_id(struct p
 int pci_setup_device(struct pci_dev *dev);
 int __pci_read_base(struct pci_dev *dev, enum pci_bar_type type,
 		    struct resource *res, unsigned int reg);
-int pci_resource_bar(struct pci_dev *dev, int resno, enum pci_bar_type *type);
 void pci_configure_ari(struct pci_dev *dev);
 void __pci_bus_size_bridges(struct pci_bus *bus,
 			struct list_head *realloc_head);
@@ -276,7 +275,7 @@ static inline void pci_restore_ats_state
 #ifdef CONFIG_PCI_IOV
 int pci_iov_init(struct pci_dev *dev);
 void pci_iov_release(struct pci_dev *dev);
-int pci_iov_resource_bar(struct pci_dev *dev, int resno);
+void pci_iov_update_resource(struct pci_dev *dev, int resno);
 resource_size_t pci_sriov_resource_alignment(struct pci_dev *dev, int resno);
 void pci_restore_iov_state(struct pci_dev *dev);
 int pci_iov_bus_range(struct pci_bus *bus);
@@ -290,10 +289,6 @@ static inline void pci_iov_release(struc
 
 {
 }
-static inline int pci_iov_resource_bar(struct pci_dev *dev, int resno)
-{
-	return 0;
-}
 static inline void pci_restore_iov_state(struct pci_dev *dev)
 {
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pci/pci-sysfs.c linux-libre-4.4.107-gnu/drivers/pci/pci-sysfs.c
--- linux-libre-4.4-gnu/drivers/pci/pci-sysfs.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/pci/pci-sysfs.c	2017-12-20 04:05:01.000000000 -0500
@@ -522,7 +522,7 @@ static ssize_t driver_override_store(str
 				     const char *buf, size_t count)
 {
 	struct pci_dev *pdev = to_pci_dev(dev);
-	char *driver_override, *old = pdev->driver_override, *cp;
+	char *driver_override, *old, *cp;
 
 	/* We need to keep extra room for a newline */
 	if (count >= (PAGE_SIZE - 1))
@@ -536,12 +536,15 @@ static ssize_t driver_override_store(str
 	if (cp)
 		*cp = '\0';
 
+	device_lock(dev);
+	old = pdev->driver_override;
 	if (strlen(driver_override)) {
 		pdev->driver_override = driver_override;
 	} else {
 		kfree(driver_override);
 		pdev->driver_override = NULL;
 	}
+	device_unlock(dev);
 
 	kfree(old);
 
@@ -552,8 +555,12 @@ static ssize_t driver_override_show(stru
 				    struct device_attribute *attr, char *buf)
 {
 	struct pci_dev *pdev = to_pci_dev(dev);
+	ssize_t len;
 
-	return snprintf(buf, PAGE_SIZE, "%s\n", pdev->driver_override);
+	device_lock(dev);
+	len = snprintf(buf, PAGE_SIZE, "%s\n", pdev->driver_override);
+	device_unlock(dev);
+	return len;
 }
 static DEVICE_ATTR_RW(driver_override);
 
@@ -973,15 +980,19 @@ void pci_remove_legacy_files(struct pci_
 int pci_mmap_fits(struct pci_dev *pdev, int resno, struct vm_area_struct *vma,
 		  enum pci_mmap_api mmap_api)
 {
-	unsigned long nr, start, size, pci_start;
+	unsigned long nr, start, size;
+	resource_size_t pci_start = 0, pci_end;
 
 	if (pci_resource_len(pdev, resno) == 0)
 		return 0;
 	nr = vma_pages(vma);
 	start = vma->vm_pgoff;
 	size = ((pci_resource_len(pdev, resno) - 1) >> PAGE_SHIFT) + 1;
-	pci_start = (mmap_api == PCI_MMAP_PROCFS) ?
-			pci_resource_start(pdev, resno) >> PAGE_SHIFT : 0;
+	if (mmap_api == PCI_MMAP_PROCFS) {
+		pci_resource_to_user(pdev, resno, &pdev->resource[resno],
+				     &pci_start, &pci_end);
+		pci_start >>= PAGE_SHIFT;
+	}
 	if (start >= pci_start && start < pci_start + size &&
 			start + nr <= pci_start + size)
 		return 1;
@@ -1372,10 +1383,10 @@ int __must_check pci_create_sysfs_dev_fi
 	if (!sysfs_initialized)
 		return -EACCES;
 
-	if (pdev->cfg_size < PCI_CFG_SPACE_EXP_SIZE)
-		retval = sysfs_create_bin_file(&pdev->dev.kobj, &pci_config_attr);
-	else
+	if (pdev->cfg_size > PCI_CFG_SPACE_SIZE)
 		retval = sysfs_create_bin_file(&pdev->dev.kobj, &pcie_config_attr);
+	else
+		retval = sysfs_create_bin_file(&pdev->dev.kobj, &pci_config_attr);
 	if (retval)
 		goto err;
 
@@ -1427,10 +1438,10 @@ err_rom_file:
 err_resource_files:
 	pci_remove_resource_files(pdev);
 err_config_file:
-	if (pdev->cfg_size < PCI_CFG_SPACE_EXP_SIZE)
-		sysfs_remove_bin_file(&pdev->dev.kobj, &pci_config_attr);
-	else
+	if (pdev->cfg_size > PCI_CFG_SPACE_SIZE)
 		sysfs_remove_bin_file(&pdev->dev.kobj, &pcie_config_attr);
+	else
+		sysfs_remove_bin_file(&pdev->dev.kobj, &pci_config_attr);
 err:
 	return retval;
 }
@@ -1464,10 +1475,10 @@ void pci_remove_sysfs_dev_files(struct p
 
 	pci_remove_capabilities_sysfs(pdev);
 
-	if (pdev->cfg_size < PCI_CFG_SPACE_EXP_SIZE)
-		sysfs_remove_bin_file(&pdev->dev.kobj, &pci_config_attr);
-	else
+	if (pdev->cfg_size > PCI_CFG_SPACE_SIZE)
 		sysfs_remove_bin_file(&pdev->dev.kobj, &pcie_config_attr);
+	else
+		sysfs_remove_bin_file(&pdev->dev.kobj, &pci_config_attr);
 
 	pci_remove_resource_files(pdev);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pci/probe.c linux-libre-4.4.107-gnu/drivers/pci/probe.c
--- linux-libre-4.4-gnu/drivers/pci/probe.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/pci/probe.c	2017-12-20 04:05:01.000000000 -0500
@@ -226,7 +226,8 @@ int __pci_read_base(struct pci_dev *dev,
 			mask64 = (u32)PCI_BASE_ADDRESS_MEM_MASK;
 		}
 	} else {
-		res->flags |= (l & IORESOURCE_ROM_ENABLE);
+		if (l & PCI_ROM_ADDRESS_ENABLE)
+			res->flags |= IORESOURCE_ROM_ENABLE;
 		l64 = l & PCI_ROM_ADDRESS_MASK;
 		sz64 = sz & PCI_ROM_ADDRESS_MASK;
 		mask64 = (u32)PCI_ROM_ADDRESS_MASK;
@@ -319,6 +320,9 @@ static void pci_read_bases(struct pci_de
 {
 	unsigned int pos, reg;
 
+	if (dev->non_compliant_bars)
+		return;
+
 	for (pos = 0; pos < howmany; pos++) {
 		struct resource *res = &dev->resource[pos];
 		reg = PCI_BASE_ADDRESS_0 + (pos << 2);
@@ -1016,6 +1020,7 @@ void set_pcie_port_type(struct pci_dev *
 	pos = pci_find_capability(pdev, PCI_CAP_ID_EXP);
 	if (!pos)
 		return;
+
 	pdev->pcie_cap = pos;
 	pci_read_config_word(pdev, pos + PCI_EXP_FLAGS, &reg16);
 	pdev->pcie_flags_reg = reg16;
@@ -1023,13 +1028,14 @@ void set_pcie_port_type(struct pci_dev *
 	pdev->pcie_mpss = reg16 & PCI_EXP_DEVCAP_PAYLOAD;
 
 	/*
-	 * A Root Port is always the upstream end of a Link.  No PCIe
-	 * component has two Links.  Two Links are connected by a Switch
-	 * that has a Port on each Link and internal logic to connect the
-	 * two Ports.
+	 * A Root Port or a PCI-to-PCIe bridge is always the upstream end
+	 * of a Link.  No PCIe component has two Links.  Two Links are
+	 * connected by a Switch that has a Port on each Link and internal
+	 * logic to connect the two Ports.
 	 */
 	type = pci_pcie_type(pdev);
-	if (type == PCI_EXP_TYPE_ROOT_PORT)
+	if (type == PCI_EXP_TYPE_ROOT_PORT ||
+	    type == PCI_EXP_TYPE_PCIE_BRIDGE)
 		pdev->has_secondary_link = 1;
 	else if (type == PCI_EXP_TYPE_UPSTREAM ||
 		 type == PCI_EXP_TYPE_DOWNSTREAM) {
@@ -1174,6 +1180,7 @@ void pci_msi_setup_pci_dev(struct pci_de
 int pci_setup_device(struct pci_dev *dev)
 {
 	u32 class;
+	u16 cmd;
 	u8 hdr_type;
 	int pos = 0;
 	struct pci_bus_region region;
@@ -1219,6 +1226,16 @@ int pci_setup_device(struct pci_dev *dev
 	/* device class may be changed after fixup */
 	class = dev->class >> 8;
 
+	if (dev->non_compliant_bars) {
+		pci_read_config_word(dev, PCI_COMMAND, &cmd);
+		if (cmd & (PCI_COMMAND_IO | PCI_COMMAND_MEMORY)) {
+			dev_info(&dev->dev, "device has non-compliant BARs; disabling IO/MEM decoding\n");
+			cmd &= ~PCI_COMMAND_IO;
+			cmd &= ~PCI_COMMAND_MEMORY;
+			pci_write_config_word(dev, PCI_COMMAND, cmd);
+		}
+	}
+
 	switch (dev->hdr_type) {		    /* header type */
 	case PCI_HEADER_TYPE_NORMAL:		    /* standard header */
 		if (class == PCI_CLASS_BRIDGE_PCI)
@@ -1397,8 +1414,31 @@ static void program_hpp_type0(struct pci
 
 static void program_hpp_type1(struct pci_dev *dev, struct hpp_type1 *hpp)
 {
-	if (hpp)
-		dev_warn(&dev->dev, "PCI-X settings not supported\n");
+	int pos;
+
+	if (!hpp)
+		return;
+
+	pos = pci_find_capability(dev, PCI_CAP_ID_PCIX);
+	if (!pos)
+		return;
+
+	dev_warn(&dev->dev, "PCI-X settings not supported\n");
+}
+
+static bool pcie_root_rcb_set(struct pci_dev *dev)
+{
+	struct pci_dev *rp = pcie_find_root_port(dev);
+	u16 lnkctl;
+
+	if (!rp)
+		return false;
+
+	pcie_capability_read_word(rp, PCI_EXP_LNKCTL, &lnkctl);
+	if (lnkctl & PCI_EXP_LNKCTL_RCB)
+		return true;
+
+	return false;
 }
 
 static void program_hpp_type2(struct pci_dev *dev, struct hpp_type2 *hpp)
@@ -1409,6 +1449,9 @@ static void program_hpp_type2(struct pci
 	if (!hpp)
 		return;
 
+	if (!pci_is_pcie(dev))
+		return;
+
 	if (hpp->revision > 1) {
 		dev_warn(&dev->dev, "PCIe settings rev %d not supported\n",
 			 hpp->revision);
@@ -1430,9 +1473,20 @@ static void program_hpp_type2(struct pci
 			~hpp->pci_exp_devctl_and, hpp->pci_exp_devctl_or);
 
 	/* Initialize Link Control Register */
-	if (pcie_cap_has_lnkctl(dev))
+	if (pcie_cap_has_lnkctl(dev)) {
+
+		/*
+		 * If the Root Port supports Read Completion Boundary of
+		 * 128, set RCB to 128.  Otherwise, clear it.
+		 */
+		hpp->pci_exp_lnkctl_and |= PCI_EXP_LNKCTL_RCB;
+		hpp->pci_exp_lnkctl_or &= ~PCI_EXP_LNKCTL_RCB;
+		if (pcie_root_rcb_set(dev))
+			hpp->pci_exp_lnkctl_or |= PCI_EXP_LNKCTL_RCB;
+
 		pcie_capability_clear_and_set_word(dev, PCI_EXP_LNKCTL,
 			~hpp->pci_exp_lnkctl_and, hpp->pci_exp_lnkctl_or);
+	}
 
 	/* Find Advanced Error Reporting Enhanced Capability */
 	pos = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_ERR);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pci/quirks.c linux-libre-4.4.107-gnu/drivers/pci/quirks.c
--- linux-libre-4.4-gnu/drivers/pci/quirks.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/pci/quirks.c	2017-12-20 04:05:01.000000000 -0500
@@ -287,6 +287,18 @@ static void quirk_citrine(struct pci_dev
 }
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_IBM,	PCI_DEVICE_ID_IBM_CITRINE,	quirk_citrine);
 
+/*
+ * This chip can cause bus lockups if config addresses above 0x600
+ * are read or written.
+ */
+static void quirk_nfp6000(struct pci_dev *dev)
+{
+	dev->cfg_size = 0x600;
+}
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NETRONOME,	PCI_DEVICE_ID_NETRONOME_NFP4000,	quirk_nfp6000);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NETRONOME,	PCI_DEVICE_ID_NETRONOME_NFP6000,	quirk_nfp6000);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NETRONOME,	PCI_DEVICE_ID_NETRONOME_NFP6000_VF,	quirk_nfp6000);
+
 /*  On IBM Crocodile ipr SAS adapters, expand BAR to system page size */
 static void quirk_extend_bar_to_page(struct pci_dev *dev)
 {
@@ -3115,13 +3127,16 @@ static void quirk_no_bus_reset(struct pc
 }
 
 /*
- * Atheros AR93xx chips do not behave after a bus reset.  The device will
- * throw a Link Down error on AER-capable systems and regardless of AER,
- * config space of the device is never accessible again and typically
- * causes the system to hang or reset when access is attempted.
+ * Some Atheros AR9xxx and QCA988x chips do not behave after a bus reset.
+ * The device will throw a Link Down error on AER-capable systems and
+ * regardless of AER, config space of the device is never accessible again
+ * and typically causes the system to hang or reset when access is attempted.
  * http://www.spinics.net/lists/linux-pci/msg34797.html
  */
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x0030, quirk_no_bus_reset);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x0032, quirk_no_bus_reset);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x003c, quirk_no_bus_reset);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x0033, quirk_no_bus_reset);
 
 static void quirk_no_pm_reset(struct pci_dev *dev)
 {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pci/remove.c linux-libre-4.4.107-gnu/drivers/pci/remove.c
--- linux-libre-4.4-gnu/drivers/pci/remove.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/pci/remove.c	2017-12-20 04:05:01.000000000 -0500
@@ -20,9 +20,9 @@ static void pci_stop_dev(struct pci_dev
 	pci_pme_active(dev, false);
 
 	if (dev->is_added) {
+		device_release_driver(&dev->dev);
 		pci_proc_detach_device(dev);
 		pci_remove_sysfs_dev_files(dev);
-		device_release_driver(&dev->dev);
 		dev->is_added = 0;
 	}
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pci/rom.c linux-libre-4.4.107-gnu/drivers/pci/rom.c
--- linux-libre-4.4-gnu/drivers/pci/rom.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/pci/rom.c	2017-12-20 04:05:01.000000000 -0500
@@ -31,6 +31,11 @@ int pci_enable_rom(struct pci_dev *pdev)
 	if (!res->flags)
 		return -1;
 
+	/*
+	 * Ideally pci_update_resource() would update the ROM BAR address,
+	 * and we would only set the enable bit here.  But apparently some
+	 * devices have buggy ROM BARs that read as zero when disabled.
+	 */
 	pcibios_resource_to_bus(pdev->bus, &region, res);
 	pci_read_config_dword(pdev, pdev->rom_base_reg, &rom_addr);
 	rom_addr &= ~PCI_ROM_ADDRESS_MASK;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pci/setup-res.c linux-libre-4.4.107-gnu/drivers/pci/setup-res.c
--- linux-libre-4.4-gnu/drivers/pci/setup-res.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/pci/setup-res.c	2017-12-20 04:05:01.000000000 -0500
@@ -25,21 +25,18 @@
 #include <linux/slab.h>
 #include "pci.h"
 
-
-void pci_update_resource(struct pci_dev *dev, int resno)
+static void pci_std_update_resource(struct pci_dev *dev, int resno)
 {
 	struct pci_bus_region region;
 	bool disable;
 	u16 cmd;
 	u32 new, check, mask;
 	int reg;
-	enum pci_bar_type type;
 	struct resource *res = dev->resource + resno;
 
-	if (dev->is_virtfn) {
-		dev_warn(&dev->dev, "can't update VF BAR%d\n", resno);
+	/* Per SR-IOV spec 3.4.1.11, VF BARs are RO zero */
+	if (dev->is_virtfn)
 		return;
-	}
 
 	/*
 	 * Ignore resources for unimplemented BARs and unused resource slots
@@ -60,21 +57,34 @@ void pci_update_resource(struct pci_dev
 		return;
 
 	pcibios_resource_to_bus(dev->bus, &region, res);
+	new = region.start;
 
-	new = region.start | (res->flags & PCI_REGION_FLAG_MASK);
-	if (res->flags & IORESOURCE_IO)
+	if (res->flags & IORESOURCE_IO) {
 		mask = (u32)PCI_BASE_ADDRESS_IO_MASK;
-	else
+		new |= res->flags & ~PCI_BASE_ADDRESS_IO_MASK;
+	} else if (resno == PCI_ROM_RESOURCE) {
+		mask = (u32)PCI_ROM_ADDRESS_MASK;
+	} else {
 		mask = (u32)PCI_BASE_ADDRESS_MEM_MASK;
+		new |= res->flags & ~PCI_BASE_ADDRESS_MEM_MASK;
+	}
 
-	reg = pci_resource_bar(dev, resno, &type);
-	if (!reg)
-		return;
-	if (type != pci_bar_unknown) {
+	if (resno < PCI_ROM_RESOURCE) {
+		reg = PCI_BASE_ADDRESS_0 + 4 * resno;
+	} else if (resno == PCI_ROM_RESOURCE) {
+
+		/*
+		 * Apparently some Matrox devices have ROM BARs that read
+		 * as zero when disabled, so don't update ROM BARs unless
+		 * they're enabled.  See https://lkml.org/lkml/2005/8/30/138.
+		 */
 		if (!(res->flags & IORESOURCE_ROM_ENABLE))
 			return;
+
+		reg = dev->rom_base_reg;
 		new |= PCI_ROM_ADDRESS_ENABLE;
-	}
+	} else
+		return;
 
 	/*
 	 * We can't update a 64-bit BAR atomically, so when possible,
@@ -110,6 +120,16 @@ void pci_update_resource(struct pci_dev
 		pci_write_config_word(dev, PCI_COMMAND, cmd);
 }
 
+void pci_update_resource(struct pci_dev *dev, int resno)
+{
+	if (resno <= PCI_ROM_RESOURCE)
+		pci_std_update_resource(dev, resno);
+#ifdef CONFIG_PCI_IOV
+	else if (resno >= PCI_IOV_RESOURCES && resno <= PCI_IOV_RESOURCE_END)
+		pci_iov_update_resource(dev, resno);
+#endif
+}
+
 int pci_claim_resource(struct pci_dev *dev, int resource)
 {
 	struct resource *res = &dev->resource[resource];
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pci/xen-pcifront.c linux-libre-4.4.107-gnu/drivers/pci/xen-pcifront.c
--- linux-libre-4.4-gnu/drivers/pci/xen-pcifront.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/pci/xen-pcifront.c	2017-12-20 04:05:01.000000000 -0500
@@ -53,7 +53,7 @@ struct pcifront_device {
 };
 
 struct pcifront_sd {
-	int domain;
+	struct pci_sysdata sd;
 	struct pcifront_device *pdev;
 };
 
@@ -67,7 +67,9 @@ static inline void pcifront_init_sd(stru
 				    unsigned int domain, unsigned int bus,
 				    struct pcifront_device *pdev)
 {
-	sd->domain = domain;
+	/* Because we do not expose that information via XenBus. */
+	sd->sd.node = first_online_node;
+	sd->sd.domain = domain;
 	sd->pdev = pdev;
 }
 
@@ -468,8 +470,8 @@ static int pcifront_scan_root(struct pci
 	dev_info(&pdev->xdev->dev, "Creating PCI Frontend Bus %04x:%02x\n",
 		 domain, bus);
 
-	bus_entry = kmalloc(sizeof(*bus_entry), GFP_KERNEL);
-	sd = kmalloc(sizeof(*sd), GFP_KERNEL);
+	bus_entry = kzalloc(sizeof(*bus_entry), GFP_KERNEL);
+	sd = kzalloc(sizeof(*sd), GFP_KERNEL);
 	if (!bus_entry || !sd) {
 		err = -ENOMEM;
 		goto err_out;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pcmcia/db1xxx_ss.c linux-libre-4.4.107-gnu/drivers/pcmcia/db1xxx_ss.c
--- linux-libre-4.4-gnu/drivers/pcmcia/db1xxx_ss.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/pcmcia/db1xxx_ss.c	2017-12-20 04:05:01.000000000 -0500
@@ -56,6 +56,7 @@ struct db1x_pcmcia_sock {
 	int	stschg_irq;	/* card-status-change irq */
 	int	card_irq;	/* card irq */
 	int	eject_irq;	/* db1200/pb1200 have these */
+	int	insert_gpio;	/* db1000 carddetect gpio */
 
 #define BOARD_TYPE_DEFAULT	0	/* most boards */
 #define BOARD_TYPE_DB1200	1	/* IRQs aren't gpios */
@@ -83,7 +84,7 @@ static int db1200_card_inserted(struct d
 /* carddetect gpio: low-active */
 static int db1000_card_inserted(struct db1x_pcmcia_sock *sock)
 {
-	return !gpio_get_value(irq_to_gpio(sock->insert_irq));
+	return !gpio_get_value(sock->insert_gpio);
 }
 
 static int db1x_card_inserted(struct db1x_pcmcia_sock *sock)
@@ -457,9 +458,15 @@ static int db1x_pcmcia_socket_probe(stru
 	r = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "card");
 	sock->card_irq = r ? r->start : 0;
 
-	/* insert: irq which triggers on card insertion/ejection */
+	/* insert: irq which triggers on card insertion/ejection
+	 * BIG FAT NOTE: on DB1000/1100/1500/1550 we pass a GPIO here!
+	 */
 	r = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "insert");
 	sock->insert_irq = r ? r->start : -1;
+	if (sock->board_type == BOARD_TYPE_DEFAULT) {
+		sock->insert_gpio = r ? r->start : -1;
+		sock->insert_irq = r ? gpio_to_irq(r->start) : -1;
+	}
 
 	/* stschg: irq which trigger on card status change (optional) */
 	r = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "stschg");
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/perf/arm_pmu.c linux-libre-4.4.107-gnu/drivers/perf/arm_pmu.c
--- linux-libre-4.4-gnu/drivers/perf/arm_pmu.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/perf/arm_pmu.c	2017-12-20 04:05:01.000000000 -0500
@@ -815,6 +815,7 @@ static int of_pmu_irq_cfg(struct arm_pmu
 			if (i > 0 && spi != using_spi) {
 				pr_err("PPI/SPI IRQ type mismatch for %s!\n",
 					dn->name);
+				of_node_put(dn);
 				kfree(irqs);
 				return -EINVAL;
 			}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/phy/Kconfig linux-libre-4.4.107-gnu/drivers/phy/Kconfig
--- linux-libre-4.4-gnu/drivers/phy/Kconfig	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/phy/Kconfig	2017-12-20 04:05:01.000000000 -0500
@@ -368,6 +368,7 @@ config PHY_QCOM_UFS
 config PHY_TUSB1210
 	tristate "TI TUSB1210 ULPI PHY module"
 	depends on USB_ULPI_BUS
+	depends on EXTCON || !EXTCON # if EXTCON=m, this cannot be built-in
 	select GENERIC_PHY
 	help
 	  Support for TI TUSB1210 USB ULPI PHY.
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/phy/phy-core.c linux-libre-4.4.107-gnu/drivers/phy/phy-core.c
--- linux-libre-4.4-gnu/drivers/phy/phy-core.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/phy/phy-core.c	2017-12-20 04:05:01.000000000 -0500
@@ -275,20 +275,21 @@ EXPORT_SYMBOL_GPL(phy_exit);
 
 int phy_power_on(struct phy *phy)
 {
-	int ret;
+	int ret = 0;
 
 	if (!phy)
-		return 0;
+		goto out;
 
 	if (phy->pwr) {
 		ret = regulator_enable(phy->pwr);
 		if (ret)
-			return ret;
+			goto out;
 	}
 
 	ret = phy_pm_runtime_get_sync(phy);
 	if (ret < 0 && ret != -ENOTSUPP)
-		return ret;
+		goto err_pm_sync;
+
 	ret = 0; /* Override possible ret == -ENOTSUPP */
 
 	mutex_lock(&phy->mutex);
@@ -296,19 +297,20 @@ int phy_power_on(struct phy *phy)
 		ret = phy->ops->power_on(phy);
 		if (ret < 0) {
 			dev_err(&phy->dev, "phy poweron failed --> %d\n", ret);
-			goto out;
+			goto err_pwr_on;
 		}
 	}
 	++phy->power_count;
 	mutex_unlock(&phy->mutex);
 	return 0;
 
-out:
+err_pwr_on:
 	mutex_unlock(&phy->mutex);
 	phy_pm_runtime_put_sync(phy);
+err_pm_sync:
 	if (phy->pwr)
 		regulator_disable(phy->pwr);
-
+out:
 	return ret;
 }
 EXPORT_SYMBOL_GPL(phy_power_on);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/phy/phy-twl4030-usb.c linux-libre-4.4.107-gnu/drivers/phy/phy-twl4030-usb.c
--- linux-libre-4.4-gnu/drivers/phy/phy-twl4030-usb.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/phy/phy-twl4030-usb.c	2017-12-20 04:05:01.000000000 -0500
@@ -715,6 +715,7 @@ static int twl4030_usb_probe(struct plat
 	pm_runtime_use_autosuspend(&pdev->dev);
 	pm_runtime_set_autosuspend_delay(&pdev->dev, 2000);
 	pm_runtime_enable(&pdev->dev);
+	pm_runtime_get_sync(&pdev->dev);
 
 	/* Our job is to use irqs and status from the power module
 	 * to keep the transceiver disabled when nothing's connected.
@@ -750,6 +751,7 @@ static int twl4030_usb_remove(struct pla
 	struct twl4030_usb *twl = platform_get_drvdata(pdev);
 	int val;
 
+	usb_remove_phy(&twl->phy);
 	pm_runtime_get_sync(twl->dev);
 	cancel_delayed_work(&twl->id_workaround_work);
 	device_remove_file(twl->dev, &dev_attr_vbus);
@@ -757,6 +759,13 @@ static int twl4030_usb_remove(struct pla
 	/* set transceiver mode to power on defaults */
 	twl4030_usb_set_mode(twl, -1);
 
+	/* idle ulpi before powering off */
+	if (cable_present(twl->linkstat))
+		pm_runtime_put_noidle(twl->dev);
+	pm_runtime_mark_last_busy(twl->dev);
+	pm_runtime_put_sync_suspend(twl->dev);
+	pm_runtime_disable(twl->dev);
+
 	/* autogate 60MHz ULPI clock,
 	 * clear dpll clock request for i2c access,
 	 * disable 32KHz
@@ -771,11 +780,6 @@ static int twl4030_usb_remove(struct pla
 	/* disable complete OTG block */
 	twl4030_usb_clear_bits(twl, POWER_CTRL, POWER_CTRL_OTG_ENAB);
 
-	if (cable_present(twl->linkstat))
-		pm_runtime_put_noidle(twl->dev);
-	pm_runtime_mark_last_busy(twl->dev);
-	pm_runtime_put(twl->dev);
-
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pinctrl/bcm/pinctrl-bcm2835.c linux-libre-4.4.107-gnu/drivers/pinctrl/bcm/pinctrl-bcm2835.c
--- linux-libre-4.4-gnu/drivers/pinctrl/bcm/pinctrl-bcm2835.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/pinctrl/bcm/pinctrl-bcm2835.c	2017-12-20 04:05:01.000000000 -0500
@@ -779,7 +779,7 @@ static int bcm2835_pctl_dt_node_to_map(s
 		}
 		if (num_pulls) {
 			err = of_property_read_u32_index(np, "brcm,pull",
-					(num_funcs > 1) ? i : 0, &pull);
+					(num_pulls > 1) ? i : 0, &pull);
 			if (err)
 				goto out;
 			err = bcm2835_pctl_dt_node_to_map_pull(pc, np, pin,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pinctrl/berlin/berlin-bg4ct.c linux-libre-4.4.107-gnu/drivers/pinctrl/berlin/berlin-bg4ct.c
--- linux-libre-4.4-gnu/drivers/pinctrl/berlin/berlin-bg4ct.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/pinctrl/berlin/berlin-bg4ct.c	2017-12-20 04:05:01.000000000 -0500
@@ -217,7 +217,7 @@ static const struct berlin_desc_group be
 	BERLIN_PINCTRL_GROUP("SCRD0_CRD_PRES", 0xc, 0x3, 0x15,
 			BERLIN_PINCTRL_FUNCTION(0x0, "gpio"), /* GPIO20 */
 			BERLIN_PINCTRL_FUNCTION(0x1, "scrd0"), /* crd pres */
-			BERLIN_PINCTRL_FUNCTION(0x1, "sd1a")), /* DAT3 */
+			BERLIN_PINCTRL_FUNCTION(0x3, "sd1a")), /* DAT3 */
 	BERLIN_PINCTRL_GROUP("SPI1_SS0n", 0xc, 0x3, 0x18,
 			BERLIN_PINCTRL_FUNCTION(0x0, "spi1"), /* SS0n */
 			BERLIN_PINCTRL_FUNCTION(0x1, "gpio"), /* GPIO37 */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pinctrl/freescale/pinctrl-imx.c linux-libre-4.4.107-gnu/drivers/pinctrl/freescale/pinctrl-imx.c
--- linux-libre-4.4-gnu/drivers/pinctrl/freescale/pinctrl-imx.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/pinctrl/freescale/pinctrl-imx.c	2017-12-20 04:05:01.000000000 -0500
@@ -207,9 +207,9 @@ static int imx_pmx_set(struct pinctrl_de
 		pin_reg = &info->pin_regs[pin_id];
 
 		if (pin_reg->mux_reg == -1) {
-			dev_err(ipctl->dev, "Pin(%s) does not support mux function\n",
+			dev_dbg(ipctl->dev, "Pin(%s) does not support mux function\n",
 				info->pins[pin_id].name);
-			return -EINVAL;
+			continue;
 		}
 
 		if (info->flags & SHARE_MUX_CONF_REG) {
@@ -726,19 +726,18 @@ int imx_pinctrl_probe(struct platform_de
 
 	if (of_property_read_bool(dev_np, "fsl,input-sel")) {
 		np = of_parse_phandle(dev_np, "fsl,input-sel", 0);
-		if (np) {
-			ipctl->input_sel_base = of_iomap(np, 0);
-			if (IS_ERR(ipctl->input_sel_base)) {
-				of_node_put(np);
-				dev_err(&pdev->dev,
-					"iomuxc input select base address not found\n");
-				return PTR_ERR(ipctl->input_sel_base);
-			}
-		} else {
+		if (!np) {
 			dev_err(&pdev->dev, "iomuxc fsl,input-sel property not found\n");
 			return -EINVAL;
 		}
+
+		ipctl->input_sel_base = of_iomap(np, 0);
 		of_node_put(np);
+		if (!ipctl->input_sel_base) {
+			dev_err(&pdev->dev,
+				"iomuxc input select base address not found\n");
+			return -ENOMEM;
+		}
 	}
 
 	imx_pinctrl_desc.name = dev_name(&pdev->dev);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pinctrl/freescale/pinctrl-mxs.c linux-libre-4.4.107-gnu/drivers/pinctrl/freescale/pinctrl-mxs.c
--- linux-libre-4.4-gnu/drivers/pinctrl/freescale/pinctrl-mxs.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/pinctrl/freescale/pinctrl-mxs.c	2017-12-20 04:05:01.000000000 -0500
@@ -195,6 +195,16 @@ static int mxs_pinctrl_get_func_groups(s
 	return 0;
 }
 
+static void mxs_pinctrl_rmwl(u32 value, u32 mask, u8 shift, void __iomem *reg)
+{
+	u32 tmp;
+
+	tmp = readl(reg);
+	tmp &= ~(mask << shift);
+	tmp |= value << shift;
+	writel(tmp, reg);
+}
+
 static int mxs_pinctrl_set_mux(struct pinctrl_dev *pctldev, unsigned selector,
 			       unsigned group)
 {
@@ -212,8 +222,7 @@ static int mxs_pinctrl_set_mux(struct pi
 		reg += bank * 0x20 + pin / 16 * 0x10;
 		shift = pin % 16 * 2;
 
-		writel(0x3 << shift, reg + CLR);
-		writel(g->muxsel[i] << shift, reg + SET);
+		mxs_pinctrl_rmwl(g->muxsel[i], 0x3, shift, reg);
 	}
 
 	return 0;
@@ -280,8 +289,7 @@ static int mxs_pinconf_group_set(struct
 			/* mA */
 			if (config & MA_PRESENT) {
 				shift = pin % 8 * 4;
-				writel(0x3 << shift, reg + CLR);
-				writel(ma << shift, reg + SET);
+				mxs_pinctrl_rmwl(ma, 0x3, shift, reg);
 			}
 
 			/* vol */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pinctrl/intel/pinctrl-broxton.c linux-libre-4.4.107-gnu/drivers/pinctrl/intel/pinctrl-broxton.c
--- linux-libre-4.4-gnu/drivers/pinctrl/intel/pinctrl-broxton.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/pinctrl/intel/pinctrl-broxton.c	2017-12-20 04:05:01.000000000 -0500
@@ -19,7 +19,7 @@
 
 #define BXT_PAD_OWN	0x020
 #define BXT_HOSTSW_OWN	0x080
-#define BXT_PADCFGLOCK	0x090
+#define BXT_PADCFGLOCK	0x060
 #define BXT_GPI_IE	0x110
 
 #define BXT_COMMUNITY(s, e)				\
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pinctrl/intel/pinctrl-cherryview.c linux-libre-4.4.107-gnu/drivers/pinctrl/intel/pinctrl-cherryview.c
--- linux-libre-4.4-gnu/drivers/pinctrl/intel/pinctrl-cherryview.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/pinctrl/intel/pinctrl-cherryview.c	2017-12-20 04:05:01.000000000 -0500
@@ -160,7 +160,6 @@ struct chv_pin_context {
  * @pctldev: Pointer to the pin controller device
  * @chip: GPIO chip in this pin controller
  * @regs: MMIO registers
- * @lock: Lock to serialize register accesses
  * @intr_lines: Stores mapping between 16 HW interrupt wires and GPIO
  *		offset (in GPIO number space)
  * @community: Community this pinctrl instance represents
@@ -174,7 +173,6 @@ struct chv_pinctrl {
 	struct pinctrl_dev *pctldev;
 	struct gpio_chip chip;
 	void __iomem *regs;
-	raw_spinlock_t lock;
 	unsigned intr_lines[16];
 	const struct chv_community *community;
 	u32 saved_intmask;
@@ -659,6 +657,17 @@ static const struct chv_community *chv_c
 	&southeast_community,
 };
 
+/*
+ * Lock to serialize register accesses
+ *
+ * Due to a silicon issue, a shared lock must be used to prevent
+ * concurrent accesses across the 4 GPIO controllers.
+ *
+ * See Intel Atom Z8000 Processor Series Specification Update (Rev. 005),
+ * errata #CHT34, for further information.
+ */
+static DEFINE_RAW_SPINLOCK(chv_lock);
+
 static void __iomem *chv_padreg(struct chv_pinctrl *pctrl, unsigned offset,
 				unsigned reg)
 {
@@ -720,13 +729,13 @@ static void chv_pin_dbg_show(struct pinc
 	u32 ctrl0, ctrl1;
 	bool locked;
 
-	raw_spin_lock_irqsave(&pctrl->lock, flags);
+	raw_spin_lock_irqsave(&chv_lock, flags);
 
 	ctrl0 = readl(chv_padreg(pctrl, offset, CHV_PADCTRL0));
 	ctrl1 = readl(chv_padreg(pctrl, offset, CHV_PADCTRL1));
 	locked = chv_pad_locked(pctrl, offset);
 
-	raw_spin_unlock_irqrestore(&pctrl->lock, flags);
+	raw_spin_unlock_irqrestore(&chv_lock, flags);
 
 	if (ctrl0 & CHV_PADCTRL0_GPIOEN) {
 		seq_puts(s, "GPIO ");
@@ -789,14 +798,14 @@ static int chv_pinmux_set_mux(struct pin
 
 	grp = &pctrl->community->groups[group];
 
-	raw_spin_lock_irqsave(&pctrl->lock, flags);
+	raw_spin_lock_irqsave(&chv_lock, flags);
 
 	/* Check first that the pad is not locked */
 	for (i = 0; i < grp->npins; i++) {
 		if (chv_pad_locked(pctrl, grp->pins[i])) {
 			dev_warn(pctrl->dev, "unable to set mode for locked pin %u\n",
 				 grp->pins[i]);
-			raw_spin_unlock_irqrestore(&pctrl->lock, flags);
+			raw_spin_unlock_irqrestore(&chv_lock, flags);
 			return -EBUSY;
 		}
 	}
@@ -839,7 +848,7 @@ static int chv_pinmux_set_mux(struct pin
 			pin, altfunc->mode, altfunc->invert_oe ? "" : "not ");
 	}
 
-	raw_spin_unlock_irqrestore(&pctrl->lock, flags);
+	raw_spin_unlock_irqrestore(&chv_lock, flags);
 
 	return 0;
 }
@@ -853,13 +862,13 @@ static int chv_gpio_request_enable(struc
 	void __iomem *reg;
 	u32 value;
 
-	raw_spin_lock_irqsave(&pctrl->lock, flags);
+	raw_spin_lock_irqsave(&chv_lock, flags);
 
 	if (chv_pad_locked(pctrl, offset)) {
 		value = readl(chv_padreg(pctrl, offset, CHV_PADCTRL0));
 		if (!(value & CHV_PADCTRL0_GPIOEN)) {
 			/* Locked so cannot enable */
-			raw_spin_unlock_irqrestore(&pctrl->lock, flags);
+			raw_spin_unlock_irqrestore(&chv_lock, flags);
 			return -EBUSY;
 		}
 	} else {
@@ -899,7 +908,7 @@ static int chv_gpio_request_enable(struc
 		chv_writel(value, reg);
 	}
 
-	raw_spin_unlock_irqrestore(&pctrl->lock, flags);
+	raw_spin_unlock_irqrestore(&chv_lock, flags);
 
 	return 0;
 }
@@ -913,13 +922,13 @@ static void chv_gpio_disable_free(struct
 	void __iomem *reg;
 	u32 value;
 
-	raw_spin_lock_irqsave(&pctrl->lock, flags);
+	raw_spin_lock_irqsave(&chv_lock, flags);
 
 	reg = chv_padreg(pctrl, offset, CHV_PADCTRL0);
 	value = readl(reg) & ~CHV_PADCTRL0_GPIOEN;
 	chv_writel(value, reg);
 
-	raw_spin_unlock_irqrestore(&pctrl->lock, flags);
+	raw_spin_unlock_irqrestore(&chv_lock, flags);
 }
 
 static int chv_gpio_set_direction(struct pinctrl_dev *pctldev,
@@ -931,7 +940,7 @@ static int chv_gpio_set_direction(struct
 	unsigned long flags;
 	u32 ctrl0;
 
-	raw_spin_lock_irqsave(&pctrl->lock, flags);
+	raw_spin_lock_irqsave(&chv_lock, flags);
 
 	ctrl0 = readl(reg) & ~CHV_PADCTRL0_GPIOCFG_MASK;
 	if (input)
@@ -940,7 +949,7 @@ static int chv_gpio_set_direction(struct
 		ctrl0 |= CHV_PADCTRL0_GPIOCFG_GPO << CHV_PADCTRL0_GPIOCFG_SHIFT;
 	chv_writel(ctrl0, reg);
 
-	raw_spin_unlock_irqrestore(&pctrl->lock, flags);
+	raw_spin_unlock_irqrestore(&chv_lock, flags);
 
 	return 0;
 }
@@ -965,10 +974,10 @@ static int chv_config_get(struct pinctrl
 	u16 arg = 0;
 	u32 term;
 
-	raw_spin_lock_irqsave(&pctrl->lock, flags);
+	raw_spin_lock_irqsave(&chv_lock, flags);
 	ctrl0 = readl(chv_padreg(pctrl, pin, CHV_PADCTRL0));
 	ctrl1 = readl(chv_padreg(pctrl, pin, CHV_PADCTRL1));
-	raw_spin_unlock_irqrestore(&pctrl->lock, flags);
+	raw_spin_unlock_irqrestore(&chv_lock, flags);
 
 	term = (ctrl0 & CHV_PADCTRL0_TERM_MASK) >> CHV_PADCTRL0_TERM_SHIFT;
 
@@ -1042,7 +1051,7 @@ static int chv_config_set_pull(struct ch
 	unsigned long flags;
 	u32 ctrl0, pull;
 
-	raw_spin_lock_irqsave(&pctrl->lock, flags);
+	raw_spin_lock_irqsave(&chv_lock, flags);
 	ctrl0 = readl(reg);
 
 	switch (param) {
@@ -1065,7 +1074,7 @@ static int chv_config_set_pull(struct ch
 			pull = CHV_PADCTRL0_TERM_20K << CHV_PADCTRL0_TERM_SHIFT;
 			break;
 		default:
-			raw_spin_unlock_irqrestore(&pctrl->lock, flags);
+			raw_spin_unlock_irqrestore(&chv_lock, flags);
 			return -EINVAL;
 		}
 
@@ -1083,7 +1092,7 @@ static int chv_config_set_pull(struct ch
 			pull = CHV_PADCTRL0_TERM_20K << CHV_PADCTRL0_TERM_SHIFT;
 			break;
 		default:
-			raw_spin_unlock_irqrestore(&pctrl->lock, flags);
+			raw_spin_unlock_irqrestore(&chv_lock, flags);
 			return -EINVAL;
 		}
 
@@ -1091,12 +1100,12 @@ static int chv_config_set_pull(struct ch
 		break;
 
 	default:
-		raw_spin_unlock_irqrestore(&pctrl->lock, flags);
+		raw_spin_unlock_irqrestore(&chv_lock, flags);
 		return -EINVAL;
 	}
 
 	chv_writel(ctrl0, reg);
-	raw_spin_unlock_irqrestore(&pctrl->lock, flags);
+	raw_spin_unlock_irqrestore(&chv_lock, flags);
 
 	return 0;
 }
@@ -1162,9 +1171,9 @@ static int chv_gpio_get(struct gpio_chip
 	unsigned long flags;
 	u32 ctrl0, cfg;
 
-	raw_spin_lock_irqsave(&pctrl->lock, flags);
+	raw_spin_lock_irqsave(&chv_lock, flags);
 	ctrl0 = readl(chv_padreg(pctrl, pin, CHV_PADCTRL0));
-	raw_spin_unlock_irqrestore(&pctrl->lock, flags);
+	raw_spin_unlock_irqrestore(&chv_lock, flags);
 
 	cfg = ctrl0 & CHV_PADCTRL0_GPIOCFG_MASK;
 	cfg >>= CHV_PADCTRL0_GPIOCFG_SHIFT;
@@ -1182,7 +1191,7 @@ static void chv_gpio_set(struct gpio_chi
 	void __iomem *reg;
 	u32 ctrl0;
 
-	raw_spin_lock_irqsave(&pctrl->lock, flags);
+	raw_spin_lock_irqsave(&chv_lock, flags);
 
 	reg = chv_padreg(pctrl, pin, CHV_PADCTRL0);
 	ctrl0 = readl(reg);
@@ -1194,7 +1203,7 @@ static void chv_gpio_set(struct gpio_chi
 
 	chv_writel(ctrl0, reg);
 
-	raw_spin_unlock_irqrestore(&pctrl->lock, flags);
+	raw_spin_unlock_irqrestore(&chv_lock, flags);
 }
 
 static int chv_gpio_get_direction(struct gpio_chip *chip, unsigned offset)
@@ -1204,9 +1213,9 @@ static int chv_gpio_get_direction(struct
 	u32 ctrl0, direction;
 	unsigned long flags;
 
-	raw_spin_lock_irqsave(&pctrl->lock, flags);
+	raw_spin_lock_irqsave(&chv_lock, flags);
 	ctrl0 = readl(chv_padreg(pctrl, pin, CHV_PADCTRL0));
-	raw_spin_unlock_irqrestore(&pctrl->lock, flags);
+	raw_spin_unlock_irqrestore(&chv_lock, flags);
 
 	direction = ctrl0 & CHV_PADCTRL0_GPIOCFG_MASK;
 	direction >>= CHV_PADCTRL0_GPIOCFG_SHIFT;
@@ -1244,14 +1253,14 @@ static void chv_gpio_irq_ack(struct irq_
 	int pin = chv_gpio_offset_to_pin(pctrl, irqd_to_hwirq(d));
 	u32 intr_line;
 
-	raw_spin_lock(&pctrl->lock);
+	raw_spin_lock(&chv_lock);
 
 	intr_line = readl(chv_padreg(pctrl, pin, CHV_PADCTRL0));
 	intr_line &= CHV_PADCTRL0_INTSEL_MASK;
 	intr_line >>= CHV_PADCTRL0_INTSEL_SHIFT;
 	chv_writel(BIT(intr_line), pctrl->regs + CHV_INTSTAT);
 
-	raw_spin_unlock(&pctrl->lock);
+	raw_spin_unlock(&chv_lock);
 }
 
 static void chv_gpio_irq_mask_unmask(struct irq_data *d, bool mask)
@@ -1262,7 +1271,7 @@ static void chv_gpio_irq_mask_unmask(str
 	u32 value, intr_line;
 	unsigned long flags;
 
-	raw_spin_lock_irqsave(&pctrl->lock, flags);
+	raw_spin_lock_irqsave(&chv_lock, flags);
 
 	intr_line = readl(chv_padreg(pctrl, pin, CHV_PADCTRL0));
 	intr_line &= CHV_PADCTRL0_INTSEL_MASK;
@@ -1275,7 +1284,7 @@ static void chv_gpio_irq_mask_unmask(str
 		value |= BIT(intr_line);
 	chv_writel(value, pctrl->regs + CHV_INTMASK);
 
-	raw_spin_unlock_irqrestore(&pctrl->lock, flags);
+	raw_spin_unlock_irqrestore(&chv_lock, flags);
 }
 
 static void chv_gpio_irq_mask(struct irq_data *d)
@@ -1309,7 +1318,7 @@ static unsigned chv_gpio_irq_startup(str
 		unsigned long flags;
 		u32 intsel, value;
 
-		raw_spin_lock_irqsave(&pctrl->lock, flags);
+		raw_spin_lock_irqsave(&chv_lock, flags);
 		intsel = readl(chv_padreg(pctrl, pin, CHV_PADCTRL0));
 		intsel &= CHV_PADCTRL0_INTSEL_MASK;
 		intsel >>= CHV_PADCTRL0_INTSEL_SHIFT;
@@ -1324,7 +1333,7 @@ static unsigned chv_gpio_irq_startup(str
 			irq_set_handler_locked(d, handler);
 			pctrl->intr_lines[intsel] = offset;
 		}
-		raw_spin_unlock_irqrestore(&pctrl->lock, flags);
+		raw_spin_unlock_irqrestore(&chv_lock, flags);
 	}
 
 	chv_gpio_irq_unmask(d);
@@ -1340,7 +1349,7 @@ static int chv_gpio_irq_type(struct irq_
 	unsigned long flags;
 	u32 value;
 
-	raw_spin_lock_irqsave(&pctrl->lock, flags);
+	raw_spin_lock_irqsave(&chv_lock, flags);
 
 	/*
 	 * Pins which can be used as shared interrupt are configured in
@@ -1389,7 +1398,7 @@ static int chv_gpio_irq_type(struct irq_
 	else if (type & IRQ_TYPE_LEVEL_MASK)
 		irq_set_handler_locked(d, handle_level_irq);
 
-	raw_spin_unlock_irqrestore(&pctrl->lock, flags);
+	raw_spin_unlock_irqrestore(&chv_lock, flags);
 
 	return 0;
 }
@@ -1457,12 +1466,11 @@ static int chv_gpio_probe(struct chv_pin
 		offset += range->npins;
 	}
 
-	/* Mask and clear all interrupts */
-	chv_writel(0, pctrl->regs + CHV_INTMASK);
+	/* Clear all interrupts */
 	chv_writel(0xffff, pctrl->regs + CHV_INTSTAT);
 
 	ret = gpiochip_irqchip_add(chip, &chv_gpio_irqchip, 0,
-				   handle_simple_irq, IRQ_TYPE_NONE);
+				   handle_bad_irq, IRQ_TYPE_NONE);
 	if (ret) {
 		dev_err(pctrl->dev, "failed to add IRQ chip\n");
 		goto fail;
@@ -1501,7 +1509,6 @@ static int chv_pinctrl_probe(struct plat
 	if (i == ARRAY_SIZE(chv_communities))
 		return -ENODEV;
 
-	raw_spin_lock_init(&pctrl->lock);
 	pctrl->dev = &pdev->dev;
 
 #ifdef CONFIG_PM_SLEEP
@@ -1556,12 +1563,15 @@ static int chv_pinctrl_remove(struct pla
 }
 
 #ifdef CONFIG_PM_SLEEP
-static int chv_pinctrl_suspend(struct device *dev)
+static int chv_pinctrl_suspend_noirq(struct device *dev)
 {
 	struct platform_device *pdev = to_platform_device(dev);
 	struct chv_pinctrl *pctrl = platform_get_drvdata(pdev);
+	unsigned long flags;
 	int i;
 
+	raw_spin_lock_irqsave(&chv_lock, flags);
+
 	pctrl->saved_intmask = readl(pctrl->regs + CHV_INTMASK);
 
 	for (i = 0; i < pctrl->community->npins; i++) {
@@ -1582,15 +1592,20 @@ static int chv_pinctrl_suspend(struct de
 		ctx->padctrl1 = readl(reg);
 	}
 
+	raw_spin_unlock_irqrestore(&chv_lock, flags);
+
 	return 0;
 }
 
-static int chv_pinctrl_resume(struct device *dev)
+static int chv_pinctrl_resume_noirq(struct device *dev)
 {
 	struct platform_device *pdev = to_platform_device(dev);
 	struct chv_pinctrl *pctrl = platform_get_drvdata(pdev);
+	unsigned long flags;
 	int i;
 
+	raw_spin_lock_irqsave(&chv_lock, flags);
+
 	/*
 	 * Mask all interrupts before restoring per-pin configuration
 	 * registers because we don't know in which state BIOS left them
@@ -1635,12 +1650,15 @@ static int chv_pinctrl_resume(struct dev
 	chv_writel(0xffff, pctrl->regs + CHV_INTSTAT);
 	chv_writel(pctrl->saved_intmask, pctrl->regs + CHV_INTMASK);
 
+	raw_spin_unlock_irqrestore(&chv_lock, flags);
+
 	return 0;
 }
 #endif
 
 static const struct dev_pm_ops chv_pinctrl_pm_ops = {
-	SET_LATE_SYSTEM_SLEEP_PM_OPS(chv_pinctrl_suspend, chv_pinctrl_resume)
+	SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(chv_pinctrl_suspend_noirq,
+				      chv_pinctrl_resume_noirq)
 };
 
 static const struct acpi_device_id chv_pinctrl_acpi_match[] = {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pinctrl/Kconfig linux-libre-4.4.107-gnu/drivers/pinctrl/Kconfig
--- linux-libre-4.4-gnu/drivers/pinctrl/Kconfig	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/pinctrl/Kconfig	2017-12-20 04:05:01.000000000 -0500
@@ -26,7 +26,8 @@ config DEBUG_PINCTRL
 
 config PINCTRL_ADI2
 	bool "ADI pin controller driver"
-	depends on BLACKFIN
+	depends on (BF54x || BF60x)
+	depends on !GPIO_ADI
 	select PINMUX
 	select IRQ_DOMAIN
 	help
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pinctrl/mediatek/pinctrl-mtk-common.c linux-libre-4.4.107-gnu/drivers/pinctrl/mediatek/pinctrl-mtk-common.c
--- linux-libre-4.4-gnu/drivers/pinctrl/mediatek/pinctrl-mtk-common.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/pinctrl/mediatek/pinctrl-mtk-common.c	2017-12-20 04:05:01.000000000 -0500
@@ -939,7 +939,8 @@ static int mtk_gpio_set_debounce(struct
 	struct mtk_pinctrl *pctl = dev_get_drvdata(chip->dev);
 	int eint_num, virq, eint_offset;
 	unsigned int set_offset, bit, clr_bit, clr_offset, rst, i, unmask, dbnc;
-	static const unsigned int dbnc_arr[] = {0 , 1, 16, 32, 64, 128, 256};
+	static const unsigned int debounce_time[] = {500, 1000, 16000, 32000, 64000,
+						128000, 256000};
 	const struct mtk_desc_pin *pin;
 	struct irq_data *d;
 
@@ -957,9 +958,9 @@ static int mtk_gpio_set_debounce(struct
 	if (!mtk_eint_can_en_debounce(pctl, eint_num))
 		return -ENOSYS;
 
-	dbnc = ARRAY_SIZE(dbnc_arr);
-	for (i = 0; i < ARRAY_SIZE(dbnc_arr); i++) {
-		if (debounce <= dbnc_arr[i]) {
+	dbnc = ARRAY_SIZE(debounce_time);
+	for (i = 0; i < ARRAY_SIZE(debounce_time); i++) {
+		if (debounce <= debounce_time[i]) {
 			dbnc = i;
 			break;
 		}
@@ -1190,9 +1191,10 @@ static void mtk_eint_irq_handler(struct
 	const struct mtk_desc_pin *pin;
 
 	chained_irq_enter(chip, desc);
-	for (eint_num = 0; eint_num < pctl->devdata->ap_num; eint_num += 32) {
+	for (eint_num = 0;
+	     eint_num < pctl->devdata->ap_num;
+	     eint_num += 32, reg += 4) {
 		status = readl(reg);
-		reg += 4;
 		while (status) {
 			offset = __ffs(status);
 			index = eint_num + offset;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pinctrl/meson/pinctrl-meson8b.c linux-libre-4.4.107-gnu/drivers/pinctrl/meson/pinctrl-meson8b.c
--- linux-libre-4.4-gnu/drivers/pinctrl/meson/pinctrl-meson8b.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/pinctrl/meson/pinctrl-meson8b.c	2017-12-20 04:05:01.000000000 -0500
@@ -732,8 +732,8 @@ static const char * const sdxc_c_groups[
 static const char * const nand_groups[] = {
 	"nand_io", "nand_io_ce0", "nand_io_ce1",
 	"nand_io_rb0", "nand_ale", "nand_cle",
-	"nand_wen_clk", "nand_ren_clk", "nand_dqs0",
-	"nand_dqs1"
+	"nand_wen_clk", "nand_ren_clk", "nand_dqs_0",
+	"nand_dqs_1"
 };
 
 static const char * const nor_groups[] = {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pinctrl/meson/pinctrl-meson.c linux-libre-4.4.107-gnu/drivers/pinctrl/meson/pinctrl-meson.c
--- linux-libre-4.4-gnu/drivers/pinctrl/meson/pinctrl-meson.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/pinctrl/meson/pinctrl-meson.c	2017-12-20 04:05:01.000000000 -0500
@@ -246,7 +246,7 @@ static int meson_pmx_request_gpio(struct
 {
 	struct meson_pinctrl *pc = pinctrl_dev_get_drvdata(pcdev);
 
-	meson_pmx_disable_other_groups(pc, range->pin_base + offset, -1);
+	meson_pmx_disable_other_groups(pc, offset, -1);
 
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pinctrl/nomadik/pinctrl-nomadik.c linux-libre-4.4.107-gnu/drivers/pinctrl/nomadik/pinctrl-nomadik.c
--- linux-libre-4.4-gnu/drivers/pinctrl/nomadik/pinctrl-nomadik.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/pinctrl/nomadik/pinctrl-nomadik.c	2017-12-20 04:05:01.000000000 -0500
@@ -995,7 +995,7 @@ static void nmk_gpio_dbg_show_one(struct
 		int val;
 
 		if (pull)
-			pullidx = data_out ? 1 : 2;
+			pullidx = data_out ? 2 : 1;
 
 		seq_printf(s, " gpio-%-3d (%-20.20s) in  %s %s",
 			   gpio,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pinctrl/pinctrl-amd.c linux-libre-4.4.107-gnu/drivers/pinctrl/pinctrl-amd.c
--- linux-libre-4.4-gnu/drivers/pinctrl/pinctrl-amd.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/pinctrl/pinctrl-amd.c	2017-12-20 04:05:01.000000000 -0500
@@ -48,17 +48,6 @@ static int amd_gpio_direction_input(stru
 
 	spin_lock_irqsave(&gpio_dev->lock, flags);
 	pin_reg = readl(gpio_dev->base + offset * 4);
-	/*
-	 * Suppose BIOS or Bootloader sets specific debounce for the
-	 * GPIO. if not, set debounce to be  2.75ms and remove glitch.
-	*/
-	if ((pin_reg & DB_TMR_OUT_MASK) == 0) {
-		pin_reg |= 0xf;
-		pin_reg |= BIT(DB_TMR_OUT_UNIT_OFF);
-		pin_reg |= DB_TYPE_REMOVE_GLITCH << DB_CNTRL_OFF;
-		pin_reg &= ~BIT(DB_TMR_LARGE_OFF);
-	}
-
 	pin_reg &= ~BIT(OUTPUT_ENABLE_OFF);
 	writel(pin_reg, gpio_dev->base + offset * 4);
 	spin_unlock_irqrestore(&gpio_dev->lock, flags);
@@ -331,15 +320,6 @@ static void amd_gpio_irq_enable(struct i
 
 	spin_lock_irqsave(&gpio_dev->lock, flags);
 	pin_reg = readl(gpio_dev->base + (d->hwirq)*4);
-	/*
-		Suppose BIOS or Bootloader sets specific debounce for the
-		GPIO. if not, set debounce to be  2.75ms.
-	*/
-	if ((pin_reg & DB_TMR_OUT_MASK) == 0) {
-		pin_reg |= 0xf;
-		pin_reg |= BIT(DB_TMR_OUT_UNIT_OFF);
-		pin_reg &= ~BIT(DB_TMR_LARGE_OFF);
-	}
 	pin_reg |= BIT(INTERRUPT_ENABLE_OFF);
 	pin_reg |= BIT(INTERRUPT_MASK_OFF);
 	writel(pin_reg, gpio_dev->base + (d->hwirq)*4);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pinctrl/pinctrl-at91-pio4.c linux-libre-4.4.107-gnu/drivers/pinctrl/pinctrl-at91-pio4.c
--- linux-libre-4.4-gnu/drivers/pinctrl/pinctrl-at91-pio4.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/pinctrl/pinctrl-at91-pio4.c	2017-12-20 04:05:01.000000000 -0500
@@ -717,9 +717,11 @@ static int atmel_conf_pin_config_group_s
 			break;
 		case PIN_CONFIG_BIAS_PULL_UP:
 			conf |= ATMEL_PIO_PUEN_MASK;
+			conf &= (~ATMEL_PIO_PDEN_MASK);
 			break;
 		case PIN_CONFIG_BIAS_PULL_DOWN:
 			conf |= ATMEL_PIO_PDEN_MASK;
+			conf &= (~ATMEL_PIO_PUEN_MASK);
 			break;
 		case PIN_CONFIG_DRIVE_OPEN_DRAIN:
 			if (arg == 0)
@@ -1000,7 +1002,7 @@ static int atmel_pinctrl_probe(struct pl
 		atmel_pioctrl->irqs[i] = res->start;
 		irq_set_chained_handler(res->start, atmel_gpio_irq_handler);
 		irq_set_handler_data(res->start, atmel_pioctrl);
-		dev_dbg(dev, "bank %i: hwirq=%u\n", i, res->start);
+		dev_dbg(dev, "bank %i: irq=%pr\n", i, res);
 	}
 
 	atmel_pioctrl->irq_domain = irq_domain_add_linear(dev->of_node,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pinctrl/pinctrl-pistachio.c linux-libre-4.4.107-gnu/drivers/pinctrl/pinctrl-pistachio.c
--- linux-libre-4.4-gnu/drivers/pinctrl/pinctrl-pistachio.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/pinctrl/pinctrl-pistachio.c	2017-12-20 04:05:01.000000000 -0500
@@ -469,27 +469,27 @@ static const char * const pistachio_mips
 	"mfio83",
 };
 
-static const char * const pistachio_sys_pll_lock_groups[] = {
+static const char * const pistachio_audio_pll_lock_groups[] = {
 	"mfio84",
 };
 
-static const char * const pistachio_wifi_pll_lock_groups[] = {
+static const char * const pistachio_rpu_v_pll_lock_groups[] = {
 	"mfio85",
 };
 
-static const char * const pistachio_bt_pll_lock_groups[] = {
+static const char * const pistachio_rpu_l_pll_lock_groups[] = {
 	"mfio86",
 };
 
-static const char * const pistachio_rpu_v_pll_lock_groups[] = {
+static const char * const pistachio_sys_pll_lock_groups[] = {
 	"mfio87",
 };
 
-static const char * const pistachio_rpu_l_pll_lock_groups[] = {
+static const char * const pistachio_wifi_pll_lock_groups[] = {
 	"mfio88",
 };
 
-static const char * const pistachio_audio_pll_lock_groups[] = {
+static const char * const pistachio_bt_pll_lock_groups[] = {
 	"mfio89",
 };
 
@@ -559,12 +559,12 @@ enum pistachio_mux_option {
 	PISTACHIO_FUNCTION_DREQ4,
 	PISTACHIO_FUNCTION_DREQ5,
 	PISTACHIO_FUNCTION_MIPS_PLL_LOCK,
+	PISTACHIO_FUNCTION_AUDIO_PLL_LOCK,
+	PISTACHIO_FUNCTION_RPU_V_PLL_LOCK,
+	PISTACHIO_FUNCTION_RPU_L_PLL_LOCK,
 	PISTACHIO_FUNCTION_SYS_PLL_LOCK,
 	PISTACHIO_FUNCTION_WIFI_PLL_LOCK,
 	PISTACHIO_FUNCTION_BT_PLL_LOCK,
-	PISTACHIO_FUNCTION_RPU_V_PLL_LOCK,
-	PISTACHIO_FUNCTION_RPU_L_PLL_LOCK,
-	PISTACHIO_FUNCTION_AUDIO_PLL_LOCK,
 	PISTACHIO_FUNCTION_DEBUG_RAW_CCA_IND,
 	PISTACHIO_FUNCTION_DEBUG_ED_SEC20_CCA_IND,
 	PISTACHIO_FUNCTION_DEBUG_ED_SEC40_CCA_IND,
@@ -620,12 +620,12 @@ static const struct pistachio_function p
 	FUNCTION(dreq4),
 	FUNCTION(dreq5),
 	FUNCTION(mips_pll_lock),
+	FUNCTION(audio_pll_lock),
+	FUNCTION(rpu_v_pll_lock),
+	FUNCTION(rpu_l_pll_lock),
 	FUNCTION(sys_pll_lock),
 	FUNCTION(wifi_pll_lock),
 	FUNCTION(bt_pll_lock),
-	FUNCTION(rpu_v_pll_lock),
-	FUNCTION(rpu_l_pll_lock),
-	FUNCTION(audio_pll_lock),
 	FUNCTION(debug_raw_cca_ind),
 	FUNCTION(debug_ed_sec20_cca_ind),
 	FUNCTION(debug_ed_sec40_cca_ind),
@@ -809,17 +809,17 @@ static const struct pistachio_pin_group
 			   PADS_FUNCTION_SELECT2, 12, 0x3),
 	MFIO_MUX_PIN_GROUP(83, MIPS_PLL_LOCK, MIPS_TRACE_DATA, USB_DEBUG,
 			   PADS_FUNCTION_SELECT2, 14, 0x3),
-	MFIO_MUX_PIN_GROUP(84, SYS_PLL_LOCK, MIPS_TRACE_DATA, USB_DEBUG,
+	MFIO_MUX_PIN_GROUP(84, AUDIO_PLL_LOCK, MIPS_TRACE_DATA, USB_DEBUG,
 			   PADS_FUNCTION_SELECT2, 16, 0x3),
-	MFIO_MUX_PIN_GROUP(85, WIFI_PLL_LOCK, MIPS_TRACE_DATA, SDHOST_DEBUG,
+	MFIO_MUX_PIN_GROUP(85, RPU_V_PLL_LOCK, MIPS_TRACE_DATA, SDHOST_DEBUG,
 			   PADS_FUNCTION_SELECT2, 18, 0x3),
-	MFIO_MUX_PIN_GROUP(86, BT_PLL_LOCK, MIPS_TRACE_DATA, SDHOST_DEBUG,
+	MFIO_MUX_PIN_GROUP(86, RPU_L_PLL_LOCK, MIPS_TRACE_DATA, SDHOST_DEBUG,
 			   PADS_FUNCTION_SELECT2, 20, 0x3),
-	MFIO_MUX_PIN_GROUP(87, RPU_V_PLL_LOCK, DREQ2, SOCIF_DEBUG,
+	MFIO_MUX_PIN_GROUP(87, SYS_PLL_LOCK, DREQ2, SOCIF_DEBUG,
 			   PADS_FUNCTION_SELECT2, 22, 0x3),
-	MFIO_MUX_PIN_GROUP(88, RPU_L_PLL_LOCK, DREQ3, SOCIF_DEBUG,
+	MFIO_MUX_PIN_GROUP(88, WIFI_PLL_LOCK, DREQ3, SOCIF_DEBUG,
 			   PADS_FUNCTION_SELECT2, 24, 0x3),
-	MFIO_MUX_PIN_GROUP(89, AUDIO_PLL_LOCK, DREQ4, DREQ5,
+	MFIO_MUX_PIN_GROUP(89, BT_PLL_LOCK, DREQ4, DREQ5,
 			   PADS_FUNCTION_SELECT2, 26, 0x3),
 	PIN_GROUP(TCK, "tck"),
 	PIN_GROUP(TRSTN, "trstn"),
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pinctrl/pinctrl-single.c linux-libre-4.4.107-gnu/drivers/pinctrl/pinctrl-single.c
--- linux-libre-4.4-gnu/drivers/pinctrl/pinctrl-single.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/pinctrl/pinctrl-single.c	2017-12-20 04:05:01.000000000 -0500
@@ -1273,9 +1273,9 @@ static int pcs_parse_bits_in_pinctrl_ent
 
 		/* Parse pins in each row from LSB */
 		while (mask) {
-			bit_pos = ffs(mask);
+			bit_pos = __ffs(mask);
 			pin_num_from_lsb = bit_pos / pcs->bits_per_pin;
-			mask_pos = ((pcs->fmask) << (bit_pos - 1));
+			mask_pos = ((pcs->fmask) << bit_pos);
 			val_pos = val & mask_pos;
 			submask = mask & mask_pos;
 
@@ -1576,6 +1576,9 @@ static inline void pcs_irq_set(struct pc
 		else
 			mask &= ~soc_mask;
 		pcs->write(mask, pcswi->reg);
+
+		/* flush posted write */
+		mask = pcs->read(pcswi->reg);
 		raw_spin_unlock(&pcs->lock);
 	}
 
@@ -1847,7 +1850,7 @@ static int pcs_probe(struct platform_dev
 	ret = of_property_read_u32(np, "pinctrl-single,function-mask",
 				   &pcs->fmask);
 	if (!ret) {
-		pcs->fshift = ffs(pcs->fmask) - 1;
+		pcs->fshift = __ffs(pcs->fmask);
 		pcs->fmax = pcs->fmask >> pcs->fshift;
 	} else {
 		/* If mask property doesn't exist, function mux is invalid. */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pinctrl/qcom/pinctrl-msm.c linux-libre-4.4.107-gnu/drivers/pinctrl/qcom/pinctrl-msm.c
--- linux-libre-4.4-gnu/drivers/pinctrl/qcom/pinctrl-msm.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/pinctrl/qcom/pinctrl-msm.c	2017-12-20 04:05:01.000000000 -0500
@@ -597,10 +597,6 @@ static void msm_gpio_irq_unmask(struct i
 
 	spin_lock_irqsave(&pctrl->lock, flags);
 
-	val = readl(pctrl->regs + g->intr_status_reg);
-	val &= ~BIT(g->intr_status_bit);
-	writel(val, pctrl->regs + g->intr_status_reg);
-
 	val = readl(pctrl->regs + g->intr_cfg_reg);
 	val |= BIT(g->intr_enable_bit);
 	writel(val, pctrl->regs + g->intr_cfg_reg);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pinctrl/samsung/pinctrl-exynos5440.c linux-libre-4.4.107-gnu/drivers/pinctrl/samsung/pinctrl-exynos5440.c
--- linux-libre-4.4-gnu/drivers/pinctrl/samsung/pinctrl-exynos5440.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/pinctrl/samsung/pinctrl-exynos5440.c	2017-12-20 04:05:01.000000000 -0500
@@ -107,6 +107,7 @@ struct exynos5440_pmx_func {
  * @nr_groups: number of pin groups available.
  * @pmx_functions: list of pin functions parsed from device tree.
  * @nr_functions: number of pin functions available.
+ * @range: gpio range to register with pinctrl
  */
 struct exynos5440_pinctrl_priv_data {
 	void __iomem			*reg_base;
@@ -117,6 +118,7 @@ struct exynos5440_pinctrl_priv_data {
 	unsigned int			nr_groups;
 	const struct exynos5440_pmx_func	*pmx_functions;
 	unsigned int			nr_functions;
+	struct pinctrl_gpio_range	range;
 };
 
 /**
@@ -742,7 +744,6 @@ static int exynos5440_pinctrl_register(s
 	struct pinctrl_desc *ctrldesc;
 	struct pinctrl_dev *pctl_dev;
 	struct pinctrl_pin_desc *pindesc, *pdesc;
-	struct pinctrl_gpio_range grange;
 	char *pin_names;
 	int pin, ret;
 
@@ -794,12 +795,12 @@ static int exynos5440_pinctrl_register(s
 		return PTR_ERR(pctl_dev);
 	}
 
-	grange.name = "exynos5440-pctrl-gpio-range";
-	grange.id = 0;
-	grange.base = 0;
-	grange.npins = EXYNOS5440_MAX_PINS;
-	grange.gc = priv->gc;
-	pinctrl_add_gpio_range(pctl_dev, &grange);
+	priv->range.name = "exynos5440-pctrl-gpio-range";
+	priv->range.id = 0;
+	priv->range.base = 0;
+	priv->range.npins = EXYNOS5440_MAX_PINS;
+	priv->range.gc = priv->gc;
+	pinctrl_add_gpio_range(pctl_dev, &priv->range);
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pinctrl/samsung/pinctrl-exynos.c linux-libre-4.4.107-gnu/drivers/pinctrl/samsung/pinctrl-exynos.c
--- linux-libre-4.4-gnu/drivers/pinctrl/samsung/pinctrl-exynos.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/pinctrl/samsung/pinctrl-exynos.c	2017-12-20 04:05:01.000000000 -0500
@@ -194,8 +194,6 @@ static int exynos_irq_request_resources(
 
 	spin_unlock_irqrestore(&bank->slock, flags);
 
-	exynos_irq_unmask(irqd);
-
 	return 0;
 }
 
@@ -216,8 +214,6 @@ static void exynos_irq_release_resources
 	shift = irqd->hwirq * bank_type->fld_width[PINCFG_TYPE_FUNC];
 	mask = (1 << bank_type->fld_width[PINCFG_TYPE_FUNC]) - 1;
 
-	exynos_irq_mask(irqd);
-
 	spin_lock_irqsave(&bank->slock, flags);
 
 	con = readl(d->virt_base + reg_con);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pinctrl/sh-pfc/core.c linux-libre-4.4.107-gnu/drivers/pinctrl/sh-pfc/core.c
--- linux-libre-4.4-gnu/drivers/pinctrl/sh-pfc/core.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/pinctrl/sh-pfc/core.c	2017-12-20 04:05:01.000000000 -0500
@@ -543,9 +543,14 @@ static int sh_pfc_probe(struct platform_
 		ret = info->ops->init(pfc);
 		if (ret < 0)
 			return ret;
+
+		/* .init() may have overridden pfc->info */
+		info = pfc->info;
 	}
 
-	pinctrl_provide_dummies();
+	/* Enable dummy states for those platforms without pinctrl support */
+	if (!of_have_populated_dt())
+		pinctrl_provide_dummies();
 
 	ret = sh_pfc_init_ranges(pfc);
 	if (ret < 0)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pinctrl/sh-pfc/pfc-r8a7791.c linux-libre-4.4.107-gnu/drivers/pinctrl/sh-pfc/pfc-r8a7791.c
--- linux-libre-4.4-gnu/drivers/pinctrl/sh-pfc/pfc-r8a7791.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/pinctrl/sh-pfc/pfc-r8a7791.c	2017-12-20 04:05:01.000000000 -0500
@@ -1102,7 +1102,7 @@ static const u16 pinmux_data[] = {
 	PINMUX_IPSR_MSEL(IP6_5_3, FMIN_E, SEL_FM_4),
 	PINMUX_IPSR_DATA(IP6_7_6, AUDIO_CLKOUT),
 	PINMUX_IPSR_MSEL(IP6_7_6, MSIOF1_SS1_B, SEL_SOF1_1),
-	PINMUX_IPSR_MSEL(IP6_5_3, TX2, SEL_SCIF2_0),
+	PINMUX_IPSR_MSEL(IP6_7_6, TX2, SEL_SCIF2_0),
 	PINMUX_IPSR_MSEL(IP6_7_6, SCIFA2_TXD, SEL_SCIFA2_0),
 	PINMUX_IPSR_DATA(IP6_9_8, IRQ0),
 	PINMUX_IPSR_MSEL(IP6_9_8, SCIFB1_RXD_D, SEL_SCIFB1_3),
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pinctrl/sh-pfc/pinctrl.c linux-libre-4.4.107-gnu/drivers/pinctrl/sh-pfc/pinctrl.c
--- linux-libre-4.4-gnu/drivers/pinctrl/sh-pfc/pinctrl.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/pinctrl/sh-pfc/pinctrl.c	2017-12-20 04:05:01.000000000 -0500
@@ -483,7 +483,8 @@ static bool sh_pfc_pinconf_validate(stru
 
 	switch (param) {
 	case PIN_CONFIG_BIAS_DISABLE:
-		return true;
+		return pin->configs &
+			(SH_PFC_PIN_CFG_PULL_UP | SH_PFC_PIN_CFG_PULL_DOWN);
 
 	case PIN_CONFIG_BIAS_PULL_UP:
 		return pin->configs & SH_PFC_PIN_CFG_PULL_UP;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pinctrl/sunxi/pinctrl-sun4i-a10.c linux-libre-4.4.107-gnu/drivers/pinctrl/sunxi/pinctrl-sun4i-a10.c
--- linux-libre-4.4-gnu/drivers/pinctrl/sunxi/pinctrl-sun4i-a10.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/pinctrl/sunxi/pinctrl-sun4i-a10.c	2017-12-20 04:05:01.000000000 -0500
@@ -811,6 +811,7 @@ static const struct sunxi_desc_pin sun4i
 		  SUNXI_FUNCTION(0x2, "lcd1"),		/* D16 */
 		  SUNXI_FUNCTION(0x3, "pata"),		/* ATAD12 */
 		  SUNXI_FUNCTION(0x4, "keypad"),	/* IN6 */
+		  SUNXI_FUNCTION(0x5, "sim"),		/* DET */
 		  SUNXI_FUNCTION_IRQ(0x6, 16),		/* EINT16 */
 		  SUNXI_FUNCTION(0x7, "csi1")),		/* D16 */
 	SUNXI_PIN(SUNXI_PINCTRL_PIN(H, 17),
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pinctrl/sunxi/pinctrl-sun8i-a23.c linux-libre-4.4.107-gnu/drivers/pinctrl/sunxi/pinctrl-sun8i-a23.c
--- linux-libre-4.4-gnu/drivers/pinctrl/sunxi/pinctrl-sun8i-a23.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/pinctrl/sunxi/pinctrl-sun8i-a23.c	2017-12-20 04:05:01.000000000 -0500
@@ -485,12 +485,12 @@ static const struct sunxi_desc_pin sun8i
 	SUNXI_PIN(SUNXI_PINCTRL_PIN(G, 8),
 		  SUNXI_FUNCTION(0x0, "gpio_in"),
 		  SUNXI_FUNCTION(0x1, "gpio_out"),
-		  SUNXI_FUNCTION(0x2, "uart2"),		/* RTS */
+		  SUNXI_FUNCTION(0x2, "uart1"),		/* RTS */
 		  SUNXI_FUNCTION_IRQ_BANK(0x4, 2, 8)),	/* PG_EINT8 */
 	SUNXI_PIN(SUNXI_PINCTRL_PIN(G, 9),
 		  SUNXI_FUNCTION(0x0, "gpio_in"),
 		  SUNXI_FUNCTION(0x1, "gpio_out"),
-		  SUNXI_FUNCTION(0x2, "uart2"),		/* CTS */
+		  SUNXI_FUNCTION(0x2, "uart1"),		/* CTS */
 		  SUNXI_FUNCTION_IRQ_BANK(0x4, 2, 9)),	/* PG_EINT9 */
 	SUNXI_PIN(SUNXI_PINCTRL_PIN(G, 10),
 		  SUNXI_FUNCTION(0x0, "gpio_in"),
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pinctrl/sunxi/pinctrl-sun8i-a33.c linux-libre-4.4.107-gnu/drivers/pinctrl/sunxi/pinctrl-sun8i-a33.c
--- linux-libre-4.4-gnu/drivers/pinctrl/sunxi/pinctrl-sun8i-a33.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/pinctrl/sunxi/pinctrl-sun8i-a33.c	2017-12-20 04:05:01.000000000 -0500
@@ -407,12 +407,12 @@ static const struct sunxi_desc_pin sun8i
 	SUNXI_PIN(SUNXI_PINCTRL_PIN(G, 8),
 		  SUNXI_FUNCTION(0x0, "gpio_in"),
 		  SUNXI_FUNCTION(0x1, "gpio_out"),
-		  SUNXI_FUNCTION(0x2, "uart2"),		/* RTS */
+		  SUNXI_FUNCTION(0x2, "uart1"),		/* RTS */
 		  SUNXI_FUNCTION_IRQ_BANK(0x4, 1, 8)),	/* PG_EINT8 */
 	SUNXI_PIN(SUNXI_PINCTRL_PIN(G, 9),
 		  SUNXI_FUNCTION(0x0, "gpio_in"),
 		  SUNXI_FUNCTION(0x1, "gpio_out"),
-		  SUNXI_FUNCTION(0x2, "uart2"),		/* CTS */
+		  SUNXI_FUNCTION(0x2, "uart1"),		/* CTS */
 		  SUNXI_FUNCTION_IRQ_BANK(0x4, 1, 9)),	/* PG_EINT9 */
 	SUNXI_PIN(SUNXI_PINCTRL_PIN(G, 10),
 		  SUNXI_FUNCTION(0x0, "gpio_in"),
@@ -485,6 +485,7 @@ static const struct sunxi_pinctrl_desc s
 	.pins = sun8i_a33_pins,
 	.npins = ARRAY_SIZE(sun8i_a33_pins),
 	.irq_banks = 2,
+	.irq_bank_base = 1,
 };
 
 static int sun8i_a33_pinctrl_probe(struct platform_device *pdev)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pinctrl/sunxi/pinctrl-sun8i-a83t.c linux-libre-4.4.107-gnu/drivers/pinctrl/sunxi/pinctrl-sun8i-a83t.c
--- linux-libre-4.4-gnu/drivers/pinctrl/sunxi/pinctrl-sun8i-a83t.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/pinctrl/sunxi/pinctrl-sun8i-a83t.c	2017-12-20 04:05:01.000000000 -0500
@@ -394,7 +394,7 @@ static const struct sunxi_desc_pin sun8i
 	SUNXI_PIN(SUNXI_PINCTRL_PIN(E, 18),
 		  SUNXI_FUNCTION(0x0, "gpio_in"),
 		  SUNXI_FUNCTION(0x1, "gpio_out"),
-		  SUNXI_FUNCTION(0x3, "owa")),		/* DOUT */
+		  SUNXI_FUNCTION(0x3, "spdif")),	/* DOUT */
 	SUNXI_PIN(SUNXI_PINCTRL_PIN(E, 19),
 		  SUNXI_FUNCTION(0x0, "gpio_in"),
 		  SUNXI_FUNCTION(0x1, "gpio_out")),
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pinctrl/sunxi/pinctrl-sunxi.c linux-libre-4.4.107-gnu/drivers/pinctrl/sunxi/pinctrl-sunxi.c
--- linux-libre-4.4-gnu/drivers/pinctrl/sunxi/pinctrl-sunxi.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/pinctrl/sunxi/pinctrl-sunxi.c	2017-12-20 04:05:01.000000000 -0500
@@ -578,7 +578,7 @@ static void sunxi_pinctrl_irq_release_re
 static int sunxi_pinctrl_irq_set_type(struct irq_data *d, unsigned int type)
 {
 	struct sunxi_pinctrl *pctl = irq_data_get_irq_chip_data(d);
-	u32 reg = sunxi_irq_cfg_reg(d->hwirq);
+	u32 reg = sunxi_irq_cfg_reg(d->hwirq, pctl->desc->irq_bank_base);
 	u8 index = sunxi_irq_cfg_offset(d->hwirq);
 	unsigned long flags;
 	u32 regval;
@@ -625,7 +625,8 @@ static int sunxi_pinctrl_irq_set_type(st
 static void sunxi_pinctrl_irq_ack(struct irq_data *d)
 {
 	struct sunxi_pinctrl *pctl = irq_data_get_irq_chip_data(d);
-	u32 status_reg = sunxi_irq_status_reg(d->hwirq);
+	u32 status_reg = sunxi_irq_status_reg(d->hwirq,
+					      pctl->desc->irq_bank_base);
 	u8 status_idx = sunxi_irq_status_offset(d->hwirq);
 
 	/* Clear the IRQ */
@@ -635,7 +636,7 @@ static void sunxi_pinctrl_irq_ack(struct
 static void sunxi_pinctrl_irq_mask(struct irq_data *d)
 {
 	struct sunxi_pinctrl *pctl = irq_data_get_irq_chip_data(d);
-	u32 reg = sunxi_irq_ctrl_reg(d->hwirq);
+	u32 reg = sunxi_irq_ctrl_reg(d->hwirq, pctl->desc->irq_bank_base);
 	u8 idx = sunxi_irq_ctrl_offset(d->hwirq);
 	unsigned long flags;
 	u32 val;
@@ -652,7 +653,7 @@ static void sunxi_pinctrl_irq_mask(struc
 static void sunxi_pinctrl_irq_unmask(struct irq_data *d)
 {
 	struct sunxi_pinctrl *pctl = irq_data_get_irq_chip_data(d);
-	u32 reg = sunxi_irq_ctrl_reg(d->hwirq);
+	u32 reg = sunxi_irq_ctrl_reg(d->hwirq, pctl->desc->irq_bank_base);
 	u8 idx = sunxi_irq_ctrl_offset(d->hwirq);
 	unsigned long flags;
 	u32 val;
@@ -744,7 +745,7 @@ static void sunxi_pinctrl_irq_handler(st
 	if (bank == pctl->desc->irq_banks)
 		return;
 
-	reg = sunxi_irq_status_reg_from_bank(bank);
+	reg = sunxi_irq_status_reg_from_bank(bank, pctl->desc->irq_bank_base);
 	val = readl(pctl->membase + reg);
 
 	if (val) {
@@ -1023,9 +1024,11 @@ int sunxi_pinctrl_init(struct platform_d
 
 	for (i = 0; i < pctl->desc->irq_banks; i++) {
 		/* Mask and clear all IRQs before registering a handler */
-		writel(0, pctl->membase + sunxi_irq_ctrl_reg_from_bank(i));
+		writel(0, pctl->membase + sunxi_irq_ctrl_reg_from_bank(i,
+						pctl->desc->irq_bank_base));
 		writel(0xffffffff,
-			pctl->membase + sunxi_irq_status_reg_from_bank(i));
+		       pctl->membase + sunxi_irq_status_reg_from_bank(i,
+						pctl->desc->irq_bank_base));
 
 		irq_set_chained_handler_and_data(pctl->irq[i],
 						 sunxi_pinctrl_irq_handler,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pinctrl/sunxi/pinctrl-sunxi.h linux-libre-4.4.107-gnu/drivers/pinctrl/sunxi/pinctrl-sunxi.h
--- linux-libre-4.4-gnu/drivers/pinctrl/sunxi/pinctrl-sunxi.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/pinctrl/sunxi/pinctrl-sunxi.h	2017-12-20 04:05:01.000000000 -0500
@@ -97,6 +97,7 @@ struct sunxi_pinctrl_desc {
 	int				npins;
 	unsigned			pin_base;
 	unsigned			irq_banks;
+	unsigned			irq_bank_base;
 	bool				irq_read_needs_mux;
 };
 
@@ -233,12 +234,12 @@ static inline u32 sunxi_pull_offset(u16
 	return pin_num * PULL_PINS_BITS;
 }
 
-static inline u32 sunxi_irq_cfg_reg(u16 irq)
+static inline u32 sunxi_irq_cfg_reg(u16 irq, unsigned bank_base)
 {
 	u8 bank = irq / IRQ_PER_BANK;
 	u8 reg = (irq % IRQ_PER_BANK) / IRQ_CFG_IRQ_PER_REG * 0x04;
 
-	return IRQ_CFG_REG + bank * IRQ_MEM_SIZE + reg;
+	return IRQ_CFG_REG + (bank_base + bank) * IRQ_MEM_SIZE + reg;
 }
 
 static inline u32 sunxi_irq_cfg_offset(u16 irq)
@@ -247,16 +248,16 @@ static inline u32 sunxi_irq_cfg_offset(u
 	return irq_num * IRQ_CFG_IRQ_BITS;
 }
 
-static inline u32 sunxi_irq_ctrl_reg_from_bank(u8 bank)
+static inline u32 sunxi_irq_ctrl_reg_from_bank(u8 bank, unsigned bank_base)
 {
-	return IRQ_CTRL_REG + bank * IRQ_MEM_SIZE;
+	return IRQ_CTRL_REG + (bank_base + bank) * IRQ_MEM_SIZE;
 }
 
-static inline u32 sunxi_irq_ctrl_reg(u16 irq)
+static inline u32 sunxi_irq_ctrl_reg(u16 irq, unsigned bank_base)
 {
 	u8 bank = irq / IRQ_PER_BANK;
 
-	return sunxi_irq_ctrl_reg_from_bank(bank);
+	return sunxi_irq_ctrl_reg_from_bank(bank, bank_base);
 }
 
 static inline u32 sunxi_irq_ctrl_offset(u16 irq)
@@ -265,16 +266,16 @@ static inline u32 sunxi_irq_ctrl_offset(
 	return irq_num * IRQ_CTRL_IRQ_BITS;
 }
 
-static inline u32 sunxi_irq_status_reg_from_bank(u8 bank)
+static inline u32 sunxi_irq_status_reg_from_bank(u8 bank, unsigned bank_base)
 {
-	return IRQ_STATUS_REG + bank * IRQ_MEM_SIZE;
+	return IRQ_STATUS_REG + (bank_base + bank) * IRQ_MEM_SIZE;
 }
 
-static inline u32 sunxi_irq_status_reg(u16 irq)
+static inline u32 sunxi_irq_status_reg(u16 irq, unsigned bank_base)
 {
 	u8 bank = irq / IRQ_PER_BANK;
 
-	return sunxi_irq_status_reg_from_bank(bank);
+	return sunxi_irq_status_reg_from_bank(bank, bank_base);
 }
 
 static inline u32 sunxi_irq_status_offset(u16 irq)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pinctrl/uniphier/pinctrl-uniphier-core.c linux-libre-4.4.107-gnu/drivers/pinctrl/uniphier/pinctrl-uniphier-core.c
--- linux-libre-4.4-gnu/drivers/pinctrl/uniphier/pinctrl-uniphier-core.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/pinctrl/uniphier/pinctrl-uniphier-core.c	2017-12-20 04:05:01.000000000 -0500
@@ -73,6 +73,12 @@ static void uniphier_pctl_pin_dbg_show(s
 	case UNIPHIER_PIN_PULL_DOWN:
 		pull_dir = "DOWN";
 		break;
+	case UNIPHIER_PIN_PULL_UP_FIXED:
+		pull_dir = "UP(FIXED)";
+		break;
+	case UNIPHIER_PIN_PULL_DOWN_FIXED:
+		pull_dir = "DOWN(FIXED)";
+		break;
 	case UNIPHIER_PIN_PULL_NONE:
 		pull_dir = "NONE";
 		break;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/platform/chrome/cros_ec_dev.c linux-libre-4.4.107-gnu/drivers/platform/chrome/cros_ec_dev.c
--- linux-libre-4.4-gnu/drivers/platform/chrome/cros_ec_dev.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/platform/chrome/cros_ec_dev.c	2017-12-20 04:05:01.000000000 -0500
@@ -147,13 +147,19 @@ static long ec_device_ioctl_xcmd(struct
 		goto exit;
 	}
 
+	if (u_cmd.outsize != s_cmd->outsize ||
+	    u_cmd.insize != s_cmd->insize) {
+		ret = -EINVAL;
+		goto exit;
+	}
+
 	s_cmd->command += ec->cmd_offset;
 	ret = cros_ec_cmd_xfer(ec->ec_dev, s_cmd);
 	/* Only copy data to userland if data was received. */
 	if (ret < 0)
 		goto exit;
 
-	if (copy_to_user(arg, s_cmd, sizeof(*s_cmd) + u_cmd.insize))
+	if (copy_to_user(arg, s_cmd, sizeof(*s_cmd) + s_cmd->insize))
 		ret = -EFAULT;
 exit:
 	kfree(s_cmd);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/platform/chrome/cros_ec_proto.c linux-libre-4.4.107-gnu/drivers/platform/chrome/cros_ec_proto.c
--- linux-libre-4.4-gnu/drivers/platform/chrome/cros_ec_proto.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/platform/chrome/cros_ec_proto.c	2017-12-20 04:05:01.000000000 -0500
@@ -380,3 +380,20 @@ int cros_ec_cmd_xfer(struct cros_ec_devi
 	return ret;
 }
 EXPORT_SYMBOL(cros_ec_cmd_xfer);
+
+int cros_ec_cmd_xfer_status(struct cros_ec_device *ec_dev,
+			    struct cros_ec_command *msg)
+{
+	int ret;
+
+	ret = cros_ec_cmd_xfer(ec_dev, msg);
+	if (ret < 0) {
+		dev_err(ec_dev->dev, "Command xfer error (err:%d)\n", ret);
+	} else if (msg->result != EC_RES_SUCCESS) {
+		dev_dbg(ec_dev->dev, "Command result (err: %d)\n", msg->result);
+		return -EPROTO;
+	}
+
+	return ret;
+}
+EXPORT_SYMBOL(cros_ec_cmd_xfer_status);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/platform/goldfish/pdev_bus.c linux-libre-4.4.107-gnu/drivers/platform/goldfish/pdev_bus.c
--- linux-libre-4.4-gnu/drivers/platform/goldfish/pdev_bus.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/platform/goldfish/pdev_bus.c	2017-12-20 04:05:01.000000000 -0500
@@ -157,23 +157,26 @@ static int goldfish_new_pdev(void)
 static irqreturn_t goldfish_pdev_bus_interrupt(int irq, void *dev_id)
 {
 	irqreturn_t ret = IRQ_NONE;
+
 	while (1) {
 		u32 op = readl(pdev_bus_base + PDEV_BUS_OP);
-		switch (op) {
-		case PDEV_BUS_OP_DONE:
-			return IRQ_NONE;
 
+		switch (op) {
 		case PDEV_BUS_OP_REMOVE_DEV:
 			goldfish_pdev_remove();
+			ret = IRQ_HANDLED;
 			break;
 
 		case PDEV_BUS_OP_ADD_DEV:
 			goldfish_new_pdev();
+			ret = IRQ_HANDLED;
 			break;
+
+		case PDEV_BUS_OP_DONE:
+		default:
+			return ret;
 		}
-		ret = IRQ_HANDLED;
 	}
-	return ret;
 }
 
 static int goldfish_pdev_bus_probe(struct platform_device *pdev)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/platform/x86/acer-wmi.c linux-libre-4.4.107-gnu/drivers/platform/x86/acer-wmi.c
--- linux-libre-4.4-gnu/drivers/platform/x86/acer-wmi.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/platform/x86/acer-wmi.c	2017-12-20 04:05:01.000000000 -0500
@@ -1816,11 +1816,24 @@ static int __init acer_wmi_enable_lm(voi
 	return status;
 }
 
+#define ACER_WMID_ACCEL_HID	"BST0001"
+
 static acpi_status __init acer_wmi_get_handle_cb(acpi_handle ah, u32 level,
 						void *ctx, void **retval)
 {
+	struct acpi_device *dev;
+
+	if (!strcmp(ctx, "SENR")) {
+		if (acpi_bus_get_device(ah, &dev))
+			return AE_OK;
+		if (!strcmp(ACER_WMID_ACCEL_HID, acpi_device_hid(dev)))
+			return AE_OK;
+	} else
+		return AE_OK;
+
 	*(acpi_handle *)retval = ah;
-	return AE_OK;
+
+	return AE_CTRL_TERMINATE;
 }
 
 static int __init acer_wmi_get_handle(const char *name, const char *prop,
@@ -1847,7 +1860,7 @@ static int __init acer_wmi_accel_setup(v
 {
 	int err;
 
-	err = acer_wmi_get_handle("SENR", "BST0001", &gsensor_handle);
+	err = acer_wmi_get_handle("SENR", ACER_WMID_ACCEL_HID, &gsensor_handle);
 	if (err)
 		return err;
 
@@ -2185,10 +2198,11 @@ static int __init acer_wmi_init(void)
 		err = acer_wmi_input_setup();
 		if (err)
 			return err;
+		err = acer_wmi_accel_setup();
+		if (err)
+			return err;
 	}
 
-	acer_wmi_accel_setup();
-
 	err = platform_driver_register(&acer_platform_driver);
 	if (err) {
 		pr_err("Unable to register platform driver\n");
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/platform/x86/asus-nb-wmi.c linux-libre-4.4.107-gnu/drivers/platform/x86/asus-nb-wmi.c
--- linux-libre-4.4-gnu/drivers/platform/x86/asus-nb-wmi.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/platform/x86/asus-nb-wmi.c	2017-12-20 04:05:01.000000000 -0500
@@ -128,6 +128,15 @@ static const struct dmi_system_id asus_q
 	},
 	{
 		.callback = dmi_matched,
+		.ident = "ASUSTeK COMPUTER INC. X45U",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "X45U"),
+		},
+		.driver_data = &quirk_asus_wapf4,
+	},
+	{
+		.callback = dmi_matched,
 		.ident = "ASUSTeK COMPUTER INC. X456UA",
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/platform/x86/dell-rbtn.c linux-libre-4.4.107-gnu/drivers/platform/x86/dell-rbtn.c
--- linux-libre-4.4-gnu/drivers/platform/x86/dell-rbtn.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/platform/x86/dell-rbtn.c	2017-12-20 04:05:01.000000000 -0500
@@ -28,6 +28,7 @@ struct rbtn_data {
 	enum rbtn_type type;
 	struct rfkill *rfkill;
 	struct input_dev *input_dev;
+	bool suspended;
 };
 
 
@@ -220,9 +221,55 @@ static const struct acpi_device_id rbtn_
 	{ "", 0 },
 };
 
+#ifdef CONFIG_PM_SLEEP
+static void ACPI_SYSTEM_XFACE rbtn_clear_suspended_flag(void *context)
+{
+	struct rbtn_data *rbtn_data = context;
+
+	rbtn_data->suspended = false;
+}
+
+static int rbtn_suspend(struct device *dev)
+{
+	struct acpi_device *device = to_acpi_device(dev);
+	struct rbtn_data *rbtn_data = acpi_driver_data(device);
+
+	rbtn_data->suspended = true;
+
+	return 0;
+}
+
+static int rbtn_resume(struct device *dev)
+{
+	struct acpi_device *device = to_acpi_device(dev);
+	struct rbtn_data *rbtn_data = acpi_driver_data(device);
+	acpi_status status;
+
+	/*
+	 * Upon resume, some BIOSes send an ACPI notification thet triggers
+	 * an unwanted input event. In order to ignore it, we use a flag
+	 * that we set at suspend and clear once we have received the extra
+	 * ACPI notification. Since ACPI notifications are delivered
+	 * asynchronously to drivers, we clear the flag from the workqueue
+	 * used to deliver the notifications. This should be enough
+	 * to have the flag cleared only after we received the extra
+	 * notification, if any.
+	 */
+	status = acpi_os_execute(OSL_NOTIFY_HANDLER,
+			 rbtn_clear_suspended_flag, rbtn_data);
+	if (ACPI_FAILURE(status))
+		rbtn_clear_suspended_flag(rbtn_data);
+
+	return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(rbtn_pm_ops, rbtn_suspend, rbtn_resume);
+
 static struct acpi_driver rbtn_driver = {
 	.name = "dell-rbtn",
 	.ids = rbtn_ids,
+	.drv.pm = &rbtn_pm_ops,
 	.ops = {
 		.add = rbtn_add,
 		.remove = rbtn_remove,
@@ -384,6 +431,15 @@ static void rbtn_notify(struct acpi_devi
 {
 	struct rbtn_data *rbtn_data = device->driver_data;
 
+	/*
+	 * Some BIOSes send a notification at resume.
+	 * Ignore it to prevent unwanted input events.
+	 */
+	if (rbtn_data->suspended) {
+		dev_dbg(&device->dev, "ACPI notification ignored\n");
+		return;
+	}
+
 	if (event != 0x80) {
 		dev_info(&device->dev, "Received unknown event (0x%x)\n",
 			 event);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/platform/x86/hp-wmi.c linux-libre-4.4.107-gnu/drivers/platform/x86/hp-wmi.c
--- linux-libre-4.4-gnu/drivers/platform/x86/hp-wmi.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/platform/x86/hp-wmi.c	2017-12-20 04:05:01.000000000 -0500
@@ -249,7 +249,7 @@ static int hp_wmi_display_state(void)
 	int ret = hp_wmi_perform_query(HPWMI_DISPLAY_QUERY, 0, &state,
 				       sizeof(state), sizeof(state));
 	if (ret)
-		return -EINVAL;
+		return ret < 0 ? ret : -EINVAL;
 	return state;
 }
 
@@ -259,7 +259,7 @@ static int hp_wmi_hddtemp_state(void)
 	int ret = hp_wmi_perform_query(HPWMI_HDDTEMP_QUERY, 0, &state,
 				       sizeof(state), sizeof(state));
 	if (ret)
-		return -EINVAL;
+		return ret < 0 ? ret : -EINVAL;
 	return state;
 }
 
@@ -269,7 +269,7 @@ static int hp_wmi_als_state(void)
 	int ret = hp_wmi_perform_query(HPWMI_ALS_QUERY, 0, &state,
 				       sizeof(state), sizeof(state));
 	if (ret)
-		return -EINVAL;
+		return ret < 0 ? ret : -EINVAL;
 	return state;
 }
 
@@ -280,7 +280,7 @@ static int hp_wmi_dock_state(void)
 				       sizeof(state), sizeof(state));
 
 	if (ret)
-		return -EINVAL;
+		return ret < 0 ? ret : -EINVAL;
 
 	return state & 0x1;
 }
@@ -291,7 +291,7 @@ static int hp_wmi_tablet_state(void)
 	int ret = hp_wmi_perform_query(HPWMI_HARDWARE_QUERY, 0, &state,
 				       sizeof(state), sizeof(state));
 	if (ret)
-		return ret;
+		return ret < 0 ? ret : -EINVAL;
 
 	return (state & 0x4) ? 1 : 0;
 }
@@ -324,7 +324,7 @@ static int __init hp_wmi_enable_hotkeys(
 	int ret = hp_wmi_perform_query(HPWMI_BIOS_QUERY, 1, &value,
 				       sizeof(value), 0);
 	if (ret)
-		return -EINVAL;
+		return ret < 0 ? ret : -EINVAL;
 	return 0;
 }
 
@@ -337,7 +337,7 @@ static int hp_wmi_set_block(void *data,
 	ret = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 1,
 				   &query, sizeof(query), 0);
 	if (ret)
-		return -EINVAL;
+		return ret < 0 ? ret : -EINVAL;
 	return 0;
 }
 
@@ -429,7 +429,7 @@ static int hp_wmi_post_code_state(void)
 	int ret = hp_wmi_perform_query(HPWMI_POSTCODEERROR_QUERY, 0, &state,
 				       sizeof(state), sizeof(state));
 	if (ret)
-		return -EINVAL;
+		return ret < 0 ? ret : -EINVAL;
 	return state;
 }
 
@@ -495,7 +495,7 @@ static ssize_t set_als(struct device *de
 	int ret = hp_wmi_perform_query(HPWMI_ALS_QUERY, 1, &tmp,
 				       sizeof(tmp), sizeof(tmp));
 	if (ret)
-		return -EINVAL;
+		return ret < 0 ? ret : -EINVAL;
 
 	return count;
 }
@@ -516,7 +516,7 @@ static ssize_t set_postcode(struct devic
 	ret = hp_wmi_perform_query(HPWMI_POSTCODEERROR_QUERY, 1, &tmp,
 				       sizeof(tmp), sizeof(tmp));
 	if (ret)
-		return -EINVAL;
+		return ret < 0 ? ret : -EINVAL;
 
 	return count;
 }
@@ -573,10 +573,12 @@ static void hp_wmi_notify(u32 value, voi
 
 	switch (event_id) {
 	case HPWMI_DOCK_EVENT:
-		input_report_switch(hp_wmi_input_dev, SW_DOCK,
-				    hp_wmi_dock_state());
-		input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE,
-				    hp_wmi_tablet_state());
+		if (test_bit(SW_DOCK, hp_wmi_input_dev->swbit))
+			input_report_switch(hp_wmi_input_dev, SW_DOCK,
+					    hp_wmi_dock_state());
+		if (test_bit(SW_TABLET_MODE, hp_wmi_input_dev->swbit))
+			input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE,
+					    hp_wmi_tablet_state());
 		input_sync(hp_wmi_input_dev);
 		break;
 	case HPWMI_PARK_HDD:
@@ -649,6 +651,7 @@ static int __init hp_wmi_input_setup(voi
 {
 	acpi_status status;
 	int err;
+	int val;
 
 	hp_wmi_input_dev = input_allocate_device();
 	if (!hp_wmi_input_dev)
@@ -659,17 +662,26 @@ static int __init hp_wmi_input_setup(voi
 	hp_wmi_input_dev->id.bustype = BUS_HOST;
 
 	__set_bit(EV_SW, hp_wmi_input_dev->evbit);
-	__set_bit(SW_DOCK, hp_wmi_input_dev->swbit);
-	__set_bit(SW_TABLET_MODE, hp_wmi_input_dev->swbit);
+
+	/* Dock */
+	val = hp_wmi_dock_state();
+	if (!(val < 0)) {
+		__set_bit(SW_DOCK, hp_wmi_input_dev->swbit);
+		input_report_switch(hp_wmi_input_dev, SW_DOCK, val);
+	}
+
+	/* Tablet mode */
+	val = hp_wmi_tablet_state();
+	if (!(val < 0)) {
+		__set_bit(SW_TABLET_MODE, hp_wmi_input_dev->swbit);
+		input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE, val);
+	}
 
 	err = sparse_keymap_setup(hp_wmi_input_dev, hp_wmi_keymap, NULL);
 	if (err)
 		goto err_free_dev;
 
 	/* Set initial hardware state */
-	input_report_switch(hp_wmi_input_dev, SW_DOCK, hp_wmi_dock_state());
-	input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE,
-			    hp_wmi_tablet_state());
 	input_sync(hp_wmi_input_dev);
 
 	if (!hp_wmi_bios_2009_later() && hp_wmi_bios_2008_later())
@@ -723,6 +735,11 @@ static int __init hp_wmi_rfkill_setup(st
 	if (err)
 		return err;
 
+	err = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 1, &wireless,
+				   sizeof(wireless), 0);
+	if (err)
+		return err;
+
 	if (wireless & 0x1) {
 		wifi_rfkill = rfkill_alloc("hp-wifi", &device->dev,
 					   RFKILL_TYPE_WLAN,
@@ -910,7 +927,7 @@ static int __init hp_wmi_bios_setup(stru
 	gps_rfkill = NULL;
 	rfkill2_count = 0;
 
-	if (hp_wmi_bios_2009_later() || hp_wmi_rfkill_setup(device))
+	if (hp_wmi_rfkill_setup(device))
 		hp_wmi_rfkill2_setup(device);
 
 	err = device_create_file(&device->dev, &dev_attr_display);
@@ -977,10 +994,12 @@ static int hp_wmi_resume_handler(struct
 	 * changed.
 	 */
 	if (hp_wmi_input_dev) {
-		input_report_switch(hp_wmi_input_dev, SW_DOCK,
-				    hp_wmi_dock_state());
-		input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE,
-				    hp_wmi_tablet_state());
+		if (test_bit(SW_DOCK, hp_wmi_input_dev->swbit))
+			input_report_switch(hp_wmi_input_dev, SW_DOCK,
+					    hp_wmi_dock_state());
+		if (test_bit(SW_TABLET_MODE, hp_wmi_input_dev->swbit))
+			input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE,
+					    hp_wmi_tablet_state());
 		input_sync(hp_wmi_input_dev);
 	}
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/platform/x86/ideapad-laptop.c linux-libre-4.4.107-gnu/drivers/platform/x86/ideapad-laptop.c
--- linux-libre-4.4-gnu/drivers/platform/x86/ideapad-laptop.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/platform/x86/ideapad-laptop.c	2017-12-20 04:05:01.000000000 -0500
@@ -807,6 +807,7 @@ static void ideapad_acpi_notify(acpi_han
 			case 11:
 			case 7:
 			case 6:
+			case 1:
 				ideapad_input_report(priv, vpc_bit);
 				break;
 			case 5:
@@ -865,6 +866,27 @@ static const struct dmi_system_id no_hw_
 		},
 	},
 	{
+		.ident = "Lenovo ideapad Y700-15ISK",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo ideapad Y700-15ISK"),
+		},
+	},
+	{
+		.ident = "Lenovo ideapad Y700 Touch-15ISK",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo ideapad Y700 Touch-15ISK"),
+		},
+	},
+	{
+		.ident = "Lenovo ideapad Y700-17ISK",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo ideapad Y700-17ISK"),
+		},
+	},
+	{
 		.ident = "Lenovo Yoga 2 11 / 13 / Pro",
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
@@ -893,6 +915,13 @@ static const struct dmi_system_id no_hw_
 		},
 	},
 	{
+		.ident = "Lenovo Yoga 700",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo YOGA 700"),
+		},
+	},
+	{
 		.ident = "Lenovo Yoga 900",
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/platform/x86/intel_mid_powerbtn.c linux-libre-4.4.107-gnu/drivers/platform/x86/intel_mid_powerbtn.c
--- linux-libre-4.4-gnu/drivers/platform/x86/intel_mid_powerbtn.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/platform/x86/intel_mid_powerbtn.c	2017-12-20 04:05:01.000000000 -0500
@@ -77,7 +77,7 @@ static int mfld_pb_probe(struct platform
 
 	input_set_capability(input, EV_KEY, KEY_POWER);
 
-	error = request_threaded_irq(irq, NULL, mfld_pb_isr, 0,
+	error = request_threaded_irq(irq, NULL, mfld_pb_isr, IRQF_ONESHOT,
 				     DRIVER_NAME, input);
 	if (error) {
 		dev_err(&pdev->dev, "Unable to request irq %d for mfld power"
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/platform/x86/intel_mid_thermal.c linux-libre-4.4.107-gnu/drivers/platform/x86/intel_mid_thermal.c
--- linux-libre-4.4-gnu/drivers/platform/x86/intel_mid_thermal.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/platform/x86/intel_mid_thermal.c	2017-12-20 04:05:01.000000000 -0500
@@ -550,6 +550,7 @@ static const struct platform_device_id t
 	{ "msic_thermal", 1 },
 	{ }
 };
+MODULE_DEVICE_TABLE(platform, therm_id_table);
 
 static struct platform_driver mid_thermal_driver = {
 	.driver = {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/platform/x86/intel_scu_ipcutil.c linux-libre-4.4.107-gnu/drivers/platform/x86/intel_scu_ipcutil.c
--- linux-libre-4.4-gnu/drivers/platform/x86/intel_scu_ipcutil.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/platform/x86/intel_scu_ipcutil.c	2017-12-20 04:05:01.000000000 -0500
@@ -49,7 +49,7 @@ struct scu_ipc_data {
 
 static int scu_reg_access(u32 cmd, struct scu_ipc_data  *data)
 {
-	int count = data->count;
+	unsigned int count = data->count;
 
 	if (count == 0 || count == 3 || count > 4)
 		return -EINVAL;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/platform/x86/toshiba_acpi.c linux-libre-4.4.107-gnu/drivers/platform/x86/toshiba_acpi.c
--- linux-libre-4.4-gnu/drivers/platform/x86/toshiba_acpi.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/platform/x86/toshiba_acpi.c	2017-12-20 04:05:01.000000000 -0500
@@ -131,7 +131,7 @@ MODULE_LICENSE("GPL");
 /* Field definitions */
 #define HCI_ACCEL_MASK			0x7fff
 #define HCI_HOTKEY_DISABLE		0x0b
-#define HCI_HOTKEY_ENABLE		0x01
+#define HCI_HOTKEY_ENABLE		0x09
 #define HCI_HOTKEY_SPECIAL_FUNCTIONS	0x10
 #define HCI_LCD_BRIGHTNESS_BITS		3
 #define HCI_LCD_BRIGHTNESS_SHIFT	(16-HCI_LCD_BRIGHTNESS_BITS)
@@ -2484,6 +2484,14 @@ static int toshiba_acpi_setup_backlight(
 	brightness = __get_lcd_brightness(dev);
 	if (brightness < 0)
 		return 0;
+	/*
+	 * If transflective backlight is supported and the brightness is zero
+	 * (lowest brightness level), the set_lcd_brightness function will
+	 * activate the transflective backlight, making the LCD appear to be
+	 * turned off, simply increment the brightness level to avoid that.
+	 */
+	if (dev->tr_backlight_supported && brightness == 0)
+		brightness++;
 	ret = set_lcd_brightness(dev, brightness);
 	if (ret) {
 		pr_debug("Backlight method is read-only, disabling backlight support\n");
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/platform/x86/toshiba-wmi.c linux-libre-4.4.107-gnu/drivers/platform/x86/toshiba-wmi.c
--- linux-libre-4.4-gnu/drivers/platform/x86/toshiba-wmi.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/platform/x86/toshiba-wmi.c	2017-12-20 04:05:01.000000000 -0500
@@ -24,14 +24,15 @@
 #include <linux/acpi.h>
 #include <linux/input.h>
 #include <linux/input/sparse-keymap.h>
+#include <linux/dmi.h>
 
 MODULE_AUTHOR("Azael Avalos");
 MODULE_DESCRIPTION("Toshiba WMI Hotkey Driver");
 MODULE_LICENSE("GPL");
 
-#define TOSHIBA_WMI_EVENT_GUID	"59142400-C6A3-40FA-BADB-8A2652834100"
+#define WMI_EVENT_GUID	"59142400-C6A3-40FA-BADB-8A2652834100"
 
-MODULE_ALIAS("wmi:"TOSHIBA_WMI_EVENT_GUID);
+MODULE_ALIAS("wmi:"WMI_EVENT_GUID);
 
 static struct input_dev *toshiba_wmi_input_dev;
 
@@ -63,6 +64,16 @@ static void toshiba_wmi_notify(u32 value
 	kfree(response.pointer);
 }
 
+static struct dmi_system_id toshiba_wmi_dmi_table[] __initdata = {
+	{
+		.ident = "Toshiba laptop",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
+		},
+	},
+	{}
+};
+
 static int __init toshiba_wmi_input_setup(void)
 {
 	acpi_status status;
@@ -81,7 +92,7 @@ static int __init toshiba_wmi_input_setu
 	if (err)
 		goto err_free_dev;
 
-	status = wmi_install_notify_handler(TOSHIBA_WMI_EVENT_GUID,
+	status = wmi_install_notify_handler(WMI_EVENT_GUID,
 					    toshiba_wmi_notify, NULL);
 	if (ACPI_FAILURE(status)) {
 		err = -EIO;
@@ -95,7 +106,7 @@ static int __init toshiba_wmi_input_setu
 	return 0;
 
  err_remove_notifier:
-	wmi_remove_notify_handler(TOSHIBA_WMI_EVENT_GUID);
+	wmi_remove_notify_handler(WMI_EVENT_GUID);
  err_free_keymap:
 	sparse_keymap_free(toshiba_wmi_input_dev);
  err_free_dev:
@@ -105,7 +116,7 @@ static int __init toshiba_wmi_input_setu
 
 static void toshiba_wmi_input_destroy(void)
 {
-	wmi_remove_notify_handler(TOSHIBA_WMI_EVENT_GUID);
+	wmi_remove_notify_handler(WMI_EVENT_GUID);
 	sparse_keymap_free(toshiba_wmi_input_dev);
 	input_unregister_device(toshiba_wmi_input_dev);
 }
@@ -114,7 +125,8 @@ static int __init toshiba_wmi_init(void)
 {
 	int ret;
 
-	if (!wmi_has_guid(TOSHIBA_WMI_EVENT_GUID))
+	if (!wmi_has_guid(WMI_EVENT_GUID) ||
+	    !dmi_check_system(toshiba_wmi_dmi_table))
 		return -ENODEV;
 
 	ret = toshiba_wmi_input_setup();
@@ -130,7 +142,7 @@ static int __init toshiba_wmi_init(void)
 
 static void __exit toshiba_wmi_exit(void)
 {
-	if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID))
+	if (wmi_has_guid(WMI_EVENT_GUID))
 		toshiba_wmi_input_destroy();
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pnp/quirks.c linux-libre-4.4.107-gnu/drivers/pnp/quirks.c
--- linux-libre-4.4-gnu/drivers/pnp/quirks.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/pnp/quirks.c	2017-12-20 04:05:01.000000000 -0500
@@ -342,7 +342,9 @@ static void quirk_amd_mmconfig_area(stru
 /* Device IDs of parts that have 32KB MCH space */
 static const unsigned int mch_quirk_devices[] = {
 	0x0154,	/* Ivy Bridge */
+	0x0a04, /* Haswell-ULT */
 	0x0c00,	/* Haswell */
+	0x1604, /* Broadwell */
 };
 
 static struct pci_dev *get_intel_host(void)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/power/bq24190_charger.c linux-libre-4.4.107-gnu/drivers/power/bq24190_charger.c
--- linux-libre-4.4-gnu/drivers/power/bq24190_charger.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/power/bq24190_charger.c	2017-12-20 04:05:01.000000000 -0500
@@ -144,10 +144,7 @@
  * so the first read after a fault returns the latched value and subsequent
  * reads return the current value.  In order to return the fault status
  * to the user, have the interrupt handler save the reg's value and retrieve
- * it in the appropriate health/status routine.  Each routine has its own
- * flag indicating whether it should use the value stored by the last run
- * of the interrupt handler or do an actual reg read.  That way each routine
- * can report back whatever fault may have occured.
+ * it in the appropriate health/status routine.
  */
 struct bq24190_dev_info {
 	struct i2c_client		*client;
@@ -159,10 +156,6 @@ struct bq24190_dev_info {
 	unsigned int			gpio_int;
 	unsigned int			irq;
 	struct mutex			f_reg_lock;
-	bool				first_time;
-	bool				charger_health_valid;
-	bool				battery_health_valid;
-	bool				battery_status_valid;
 	u8				f_reg;
 	u8				ss_reg;
 	u8				watchdog;
@@ -636,21 +629,11 @@ static int bq24190_charger_get_health(st
 		union power_supply_propval *val)
 {
 	u8 v;
-	int health, ret;
+	int health;
 
 	mutex_lock(&bdi->f_reg_lock);
-
-	if (bdi->charger_health_valid) {
-		v = bdi->f_reg;
-		bdi->charger_health_valid = false;
-		mutex_unlock(&bdi->f_reg_lock);
-	} else {
-		mutex_unlock(&bdi->f_reg_lock);
-
-		ret = bq24190_read(bdi, BQ24190_REG_F, &v);
-		if (ret < 0)
-			return ret;
-	}
+	v = bdi->f_reg;
+	mutex_unlock(&bdi->f_reg_lock);
 
 	if (v & BQ24190_REG_F_BOOST_FAULT_MASK) {
 		/*
@@ -937,18 +920,8 @@ static int bq24190_battery_get_status(st
 	int status, ret;
 
 	mutex_lock(&bdi->f_reg_lock);
-
-	if (bdi->battery_status_valid) {
-		chrg_fault = bdi->f_reg;
-		bdi->battery_status_valid = false;
-		mutex_unlock(&bdi->f_reg_lock);
-	} else {
-		mutex_unlock(&bdi->f_reg_lock);
-
-		ret = bq24190_read(bdi, BQ24190_REG_F, &chrg_fault);
-		if (ret < 0)
-			return ret;
-	}
+	chrg_fault = bdi->f_reg;
+	mutex_unlock(&bdi->f_reg_lock);
 
 	chrg_fault &= BQ24190_REG_F_CHRG_FAULT_MASK;
 	chrg_fault >>= BQ24190_REG_F_CHRG_FAULT_SHIFT;
@@ -996,21 +969,11 @@ static int bq24190_battery_get_health(st
 		union power_supply_propval *val)
 {
 	u8 v;
-	int health, ret;
+	int health;
 
 	mutex_lock(&bdi->f_reg_lock);
-
-	if (bdi->battery_health_valid) {
-		v = bdi->f_reg;
-		bdi->battery_health_valid = false;
-		mutex_unlock(&bdi->f_reg_lock);
-	} else {
-		mutex_unlock(&bdi->f_reg_lock);
-
-		ret = bq24190_read(bdi, BQ24190_REG_F, &v);
-		if (ret < 0)
-			return ret;
-	}
+	v = bdi->f_reg;
+	mutex_unlock(&bdi->f_reg_lock);
 
 	if (v & BQ24190_REG_F_BAT_FAULT_MASK) {
 		health = POWER_SUPPLY_HEALTH_OVERVOLTAGE;
@@ -1197,9 +1160,12 @@ static const struct power_supply_desc bq
 static irqreturn_t bq24190_irq_handler_thread(int irq, void *data)
 {
 	struct bq24190_dev_info *bdi = data;
-	bool alert_userspace = false;
+	const u8 battery_mask_ss = BQ24190_REG_SS_CHRG_STAT_MASK;
+	const u8 battery_mask_f = BQ24190_REG_F_BAT_FAULT_MASK
+				| BQ24190_REG_F_NTC_FAULT_MASK;
+	bool alert_charger = false, alert_battery = false;
 	u8 ss_reg = 0, f_reg = 0;
-	int ret;
+	int i, ret;
 
 	pm_runtime_get_sync(bdi->dev);
 
@@ -1209,6 +1175,32 @@ static irqreturn_t bq24190_irq_handler_t
 		goto out;
 	}
 
+	i = 0;
+	do {
+		ret = bq24190_read(bdi, BQ24190_REG_F, &f_reg);
+		if (ret < 0) {
+			dev_err(bdi->dev, "Can't read F reg: %d\n", ret);
+			goto out;
+		}
+	} while (f_reg && ++i < 2);
+
+	if (f_reg != bdi->f_reg) {
+		dev_info(bdi->dev,
+			"Fault: boost %d, charge %d, battery %d, ntc %d\n",
+			!!(f_reg & BQ24190_REG_F_BOOST_FAULT_MASK),
+			!!(f_reg & BQ24190_REG_F_CHRG_FAULT_MASK),
+			!!(f_reg & BQ24190_REG_F_BAT_FAULT_MASK),
+			!!(f_reg & BQ24190_REG_F_NTC_FAULT_MASK));
+
+		mutex_lock(&bdi->f_reg_lock);
+		if ((bdi->f_reg & battery_mask_f) != (f_reg & battery_mask_f))
+			alert_battery = true;
+		if ((bdi->f_reg & ~battery_mask_f) != (f_reg & ~battery_mask_f))
+			alert_charger = true;
+		bdi->f_reg = f_reg;
+		mutex_unlock(&bdi->f_reg_lock);
+	}
+
 	if (ss_reg != bdi->ss_reg) {
 		/*
 		 * The device is in host mode so when PG_STAT goes from 1->0
@@ -1225,47 +1217,17 @@ static irqreturn_t bq24190_irq_handler_t
 					ret);
 		}
 
+		if ((bdi->ss_reg & battery_mask_ss) != (ss_reg & battery_mask_ss))
+			alert_battery = true;
+		if ((bdi->ss_reg & ~battery_mask_ss) != (ss_reg & ~battery_mask_ss))
+			alert_charger = true;
 		bdi->ss_reg = ss_reg;
-		alert_userspace = true;
-	}
-
-	mutex_lock(&bdi->f_reg_lock);
-
-	ret = bq24190_read(bdi, BQ24190_REG_F, &f_reg);
-	if (ret < 0) {
-		mutex_unlock(&bdi->f_reg_lock);
-		dev_err(bdi->dev, "Can't read F reg: %d\n", ret);
-		goto out;
 	}
 
-	if (f_reg != bdi->f_reg) {
-		bdi->f_reg = f_reg;
-		bdi->charger_health_valid = true;
-		bdi->battery_health_valid = true;
-		bdi->battery_status_valid = true;
-
-		alert_userspace = true;
-	}
-
-	mutex_unlock(&bdi->f_reg_lock);
-
-	/*
-	 * Sometimes bq24190 gives a steady trickle of interrupts even
-	 * though the watchdog timer is turned off and neither the STATUS
-	 * nor FAULT registers have changed.  Weed out these sprurious
-	 * interrupts so userspace isn't alerted for no reason.
-	 * In addition, the chip always generates an interrupt after
-	 * register reset so we should ignore that one (the very first
-	 * interrupt received).
-	 */
-	if (alert_userspace) {
-		if (!bdi->first_time) {
-			power_supply_changed(bdi->charger);
-			power_supply_changed(bdi->battery);
-		} else {
-			bdi->first_time = false;
-		}
-	}
+	if (alert_charger)
+		power_supply_changed(bdi->charger);
+	if (alert_battery)
+		power_supply_changed(bdi->battery);
 
 out:
 	pm_runtime_put_sync(bdi->dev);
@@ -1300,6 +1262,10 @@ static int bq24190_hw_init(struct bq2419
 		goto out;
 
 	ret = bq24190_set_mode_host(bdi);
+	if (ret < 0)
+		goto out;
+
+	ret = bq24190_read(bdi, BQ24190_REG_SS, &bdi->ss_reg);
 out:
 	pm_runtime_put_sync(bdi->dev);
 	return ret;
@@ -1375,10 +1341,8 @@ static int bq24190_probe(struct i2c_clie
 	bdi->model = id->driver_data;
 	strncpy(bdi->model_name, id->name, I2C_NAME_SIZE);
 	mutex_init(&bdi->f_reg_lock);
-	bdi->first_time = true;
-	bdi->charger_health_valid = false;
-	bdi->battery_health_valid = false;
-	bdi->battery_status_valid = false;
+	bdi->f_reg = 0;
+	bdi->ss_reg = BQ24190_REG_SS_VBUS_STAT_MASK; /* impossible state */
 
 	i2c_set_clientdata(client, bdi);
 
@@ -1392,22 +1356,13 @@ static int bq24190_probe(struct i2c_clie
 		return -EINVAL;
 	}
 
-	ret = devm_request_threaded_irq(dev, bdi->irq, NULL,
-			bq24190_irq_handler_thread,
-			IRQF_TRIGGER_RISING | IRQF_ONESHOT,
-			"bq24190-charger", bdi);
-	if (ret < 0) {
-		dev_err(dev, "Can't set up irq handler\n");
-		goto out1;
-	}
-
 	pm_runtime_enable(dev);
 	pm_runtime_resume(dev);
 
 	ret = bq24190_hw_init(bdi);
 	if (ret < 0) {
 		dev_err(dev, "Hardware init failed\n");
-		goto out2;
+		goto out1;
 	}
 
 	charger_cfg.drv_data = bdi;
@@ -1418,7 +1373,7 @@ static int bq24190_probe(struct i2c_clie
 	if (IS_ERR(bdi->charger)) {
 		dev_err(dev, "Can't register charger\n");
 		ret = PTR_ERR(bdi->charger);
-		goto out2;
+		goto out1;
 	}
 
 	battery_cfg.drv_data = bdi;
@@ -1427,24 +1382,34 @@ static int bq24190_probe(struct i2c_clie
 	if (IS_ERR(bdi->battery)) {
 		dev_err(dev, "Can't register battery\n");
 		ret = PTR_ERR(bdi->battery);
-		goto out3;
+		goto out2;
 	}
 
 	ret = bq24190_sysfs_create_group(bdi);
 	if (ret) {
 		dev_err(dev, "Can't create sysfs entries\n");
+		goto out3;
+	}
+
+	ret = devm_request_threaded_irq(dev, bdi->irq, NULL,
+			bq24190_irq_handler_thread,
+			IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
+			"bq24190-charger", bdi);
+	if (ret < 0) {
+		dev_err(dev, "Can't set up irq handler\n");
 		goto out4;
 	}
 
 	return 0;
 
 out4:
-	power_supply_unregister(bdi->battery);
+	bq24190_sysfs_remove_group(bdi);
 out3:
-	power_supply_unregister(bdi->charger);
+	power_supply_unregister(bdi->battery);
 out2:
-	pm_runtime_disable(dev);
+	power_supply_unregister(bdi->charger);
 out1:
+	pm_runtime_disable(dev);
 	if (bdi->gpio_int)
 		gpio_free(bdi->gpio_int);
 
@@ -1488,12 +1453,13 @@ static int bq24190_pm_resume(struct devi
 	struct i2c_client *client = to_i2c_client(dev);
 	struct bq24190_dev_info *bdi = i2c_get_clientdata(client);
 
-	bdi->charger_health_valid = false;
-	bdi->battery_health_valid = false;
-	bdi->battery_status_valid = false;
+	bdi->f_reg = 0;
+	bdi->ss_reg = BQ24190_REG_SS_VBUS_STAT_MASK; /* impossible state */
 
 	pm_runtime_get_sync(bdi->dev);
 	bq24190_register_reset(bdi);
+	bq24190_set_mode_host(bdi);
+	bq24190_read(bdi, BQ24190_REG_SS, &bdi->ss_reg);
 	pm_runtime_put_sync(bdi->dev);
 
 	/* Things may have changed while suspended so alert upper layer */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/power/bq24257_charger.c linux-libre-4.4.107-gnu/drivers/power/bq24257_charger.c
--- linux-libre-4.4-gnu/drivers/power/bq24257_charger.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/power/bq24257_charger.c	2017-12-20 04:05:01.000000000 -0500
@@ -1068,6 +1068,12 @@ static int bq24257_probe(struct i2c_clie
 		return ret;
 	}
 
+	ret = bq24257_power_supply_init(bq);
+	if (ret < 0) {
+		dev_err(dev, "Failed to register power supply\n");
+		return ret;
+	}
+
 	ret = devm_request_threaded_irq(dev, client->irq, NULL,
 					bq24257_irq_handler_thread,
 					IRQF_TRIGGER_FALLING |
@@ -1078,12 +1084,6 @@ static int bq24257_probe(struct i2c_clie
 		return ret;
 	}
 
-	ret = bq24257_power_supply_init(bq);
-	if (ret < 0) {
-		dev_err(dev, "Failed to register power supply\n");
-		return ret;
-	}
-
 	ret = sysfs_create_group(&bq->charger->dev.kobj, &bq24257_attr_group);
 	if (ret < 0) {
 		dev_err(dev, "Can't create sysfs entries\n");
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/power/max17042_battery.c linux-libre-4.4.107-gnu/drivers/power/max17042_battery.c
--- linux-libre-4.4-gnu/drivers/power/max17042_battery.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/power/max17042_battery.c	2017-12-20 04:05:01.000000000 -0500
@@ -457,13 +457,16 @@ static inline void max17042_write_model_
 }
 
 static inline void max17042_read_model_data(struct max17042_chip *chip,
-					u8 addr, u32 *data, int size)
+					u8 addr, u16 *data, int size)
 {
 	struct regmap *map = chip->regmap;
 	int i;
+	u32 tmp;
 
-	for (i = 0; i < size; i++)
-		regmap_read(map, addr + i, &data[i]);
+	for (i = 0; i < size; i++) {
+		regmap_read(map, addr + i, &tmp);
+		data[i] = (u16)tmp;
+	}
 }
 
 static inline int max17042_model_data_compare(struct max17042_chip *chip,
@@ -486,7 +489,7 @@ static int max17042_init_model(struct ma
 {
 	int ret;
 	int table_size = ARRAY_SIZE(chip->pdata->config_data->cell_char_tbl);
-	u32 *temp_data;
+	u16 *temp_data;
 
 	temp_data = kcalloc(table_size, sizeof(*temp_data), GFP_KERNEL);
 	if (!temp_data)
@@ -501,7 +504,7 @@ static int max17042_init_model(struct ma
 	ret = max17042_model_data_compare(
 		chip,
 		chip->pdata->config_data->cell_char_tbl,
-		(u16 *)temp_data,
+		temp_data,
 		table_size);
 
 	max10742_lock_model(chip);
@@ -514,7 +517,7 @@ static int max17042_verify_model_lock(st
 {
 	int i;
 	int table_size = ARRAY_SIZE(chip->pdata->config_data->cell_char_tbl);
-	u32 *temp_data;
+	u16 *temp_data;
 	int ret = 0;
 
 	temp_data = kcalloc(table_size, sizeof(*temp_data), GFP_KERNEL);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/power/power_supply_core.c linux-libre-4.4.107-gnu/drivers/power/power_supply_core.c
--- linux-libre-4.4-gnu/drivers/power/power_supply_core.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/power/power_supply_core.c	2017-12-20 04:05:01.000000000 -0500
@@ -565,11 +565,12 @@ static int power_supply_read_temp(struct
 
 	WARN_ON(tzd == NULL);
 	psy = tzd->devdata;
-	ret = psy->desc->get_property(psy, POWER_SUPPLY_PROP_TEMP, &val);
+	ret = power_supply_get_property(psy, POWER_SUPPLY_PROP_TEMP, &val);
+	if (ret)
+		return ret;
 
 	/* Convert tenths of degree Celsius to milli degree Celsius. */
-	if (!ret)
-		*temp = val.intval * 100;
+	*temp = val.intval * 100;
 
 	return ret;
 }
@@ -612,10 +613,12 @@ static int ps_get_max_charge_cntl_limit(
 	int ret;
 
 	psy = tcd->devdata;
-	ret = psy->desc->get_property(psy,
-		POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT_MAX, &val);
-	if (!ret)
-		*state = val.intval;
+	ret = power_supply_get_property(psy,
+			POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT_MAX, &val);
+	if (ret)
+		return ret;
+
+	*state = val.intval;
 
 	return ret;
 }
@@ -628,10 +631,12 @@ static int ps_get_cur_chrage_cntl_limit(
 	int ret;
 
 	psy = tcd->devdata;
-	ret = psy->desc->get_property(psy,
-		POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT, &val);
-	if (!ret)
-		*state = val.intval;
+	ret = power_supply_get_property(psy,
+			POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT, &val);
+	if (ret)
+		return ret;
+
+	*state = val.intval;
 
 	return ret;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/power/reset/at91-poweroff.c linux-libre-4.4.107-gnu/drivers/power/reset/at91-poweroff.c
--- linux-libre-4.4-gnu/drivers/power/reset/at91-poweroff.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/power/reset/at91-poweroff.c	2017-12-20 04:05:01.000000000 -0500
@@ -14,9 +14,12 @@
 #include <linux/io.h>
 #include <linux/module.h>
 #include <linux/of.h>
+#include <linux/of_address.h>
 #include <linux/platform_device.h>
 #include <linux/printk.h>
 
+#include <soc/at91/at91sam9_ddrsdr.h>
+
 #define AT91_SHDW_CR	0x00		/* Shut Down Control Register */
 #define AT91_SHDW_SHDW		BIT(0)			/* Shut Down command */
 #define AT91_SHDW_KEY		(0xa5 << 24)		/* KEY Password */
@@ -50,6 +53,7 @@ static const char *shdwc_wakeup_modes[]
 
 static void __iomem *at91_shdwc_base;
 static struct clk *sclk;
+static void __iomem *mpddrc_base;
 
 static void __init at91_wakeup_status(void)
 {
@@ -73,6 +77,29 @@ static void at91_poweroff(void)
 	writel(AT91_SHDW_KEY | AT91_SHDW_SHDW, at91_shdwc_base + AT91_SHDW_CR);
 }
 
+static void at91_lpddr_poweroff(void)
+{
+	asm volatile(
+		/* Align to cache lines */
+		".balign 32\n\t"
+
+		/* Ensure AT91_SHDW_CR is in the TLB by reading it */
+		"	ldr	r6, [%2, #" __stringify(AT91_SHDW_CR) "]\n\t"
+
+		/* Power down SDRAM0 */
+		"	str	%1, [%0, #" __stringify(AT91_DDRSDRC_LPR) "]\n\t"
+		/* Shutdown CPU */
+		"	str	%3, [%2, #" __stringify(AT91_SHDW_CR) "]\n\t"
+
+		"	b	.\n\t"
+		:
+		: "r" (mpddrc_base),
+		  "r" cpu_to_le32(AT91_DDRSDRC_LPDDR2_PWOFF),
+		  "r" (at91_shdwc_base),
+		  "r" cpu_to_le32(AT91_SHDW_KEY | AT91_SHDW_SHDW)
+		: "r0");
+}
+
 static int at91_poweroff_get_wakeup_mode(struct device_node *np)
 {
 	const char *pm;
@@ -124,6 +151,8 @@ static void at91_poweroff_dt_set_wakeup_
 static int __init at91_poweroff_probe(struct platform_device *pdev)
 {
 	struct resource *res;
+	struct device_node *np;
+	u32 ddr_type;
 	int ret;
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
@@ -150,12 +179,30 @@ static int __init at91_poweroff_probe(st
 
 	pm_power_off = at91_poweroff;
 
+	np = of_find_compatible_node(NULL, NULL, "atmel,sama5d3-ddramc");
+	if (!np)
+		return 0;
+
+	mpddrc_base = of_iomap(np, 0);
+	of_node_put(np);
+
+	if (!mpddrc_base)
+		return 0;
+
+	ddr_type = readl(mpddrc_base + AT91_DDRSDRC_MDR) & AT91_DDRSDRC_MD;
+	if ((ddr_type == AT91_DDRSDRC_MD_LPDDR2) ||
+	    (ddr_type == AT91_DDRSDRC_MD_LPDDR3))
+		pm_power_off = at91_lpddr_poweroff;
+	else
+		iounmap(mpddrc_base);
+
 	return 0;
 }
 
 static int __exit at91_poweroff_remove(struct platform_device *pdev)
 {
-	if (pm_power_off == at91_poweroff)
+	if (pm_power_off == at91_poweroff ||
+	    pm_power_off == at91_lpddr_poweroff)
 		pm_power_off = NULL;
 
 	clk_disable_unprepare(sclk);
@@ -163,6 +210,11 @@ static int __exit at91_poweroff_remove(s
 	return 0;
 }
 
+static const struct of_device_id at91_ramc_of_match[] = {
+	{ .compatible = "atmel,sama5d3-ddramc", },
+	{ /* sentinel */ }
+};
+
 static const struct of_device_id at91_poweroff_of_match[] = {
 	{ .compatible = "atmel,at91sam9260-shdwc", },
 	{ .compatible = "atmel,at91sam9rl-shdwc", },
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/power/reset/hisi-reboot.c linux-libre-4.4.107-gnu/drivers/power/reset/hisi-reboot.c
--- linux-libre-4.4-gnu/drivers/power/reset/hisi-reboot.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/power/reset/hisi-reboot.c	2017-12-20 04:05:01.000000000 -0500
@@ -53,13 +53,16 @@ static int hisi_reboot_probe(struct plat
 
 	if (of_property_read_u32(np, "reboot-offset", &reboot_offset) < 0) {
 		pr_err("failed to find reboot-offset property\n");
+		iounmap(base);
 		return -EINVAL;
 	}
 
 	err = register_restart_handler(&hisi_restart_nb);
-	if (err)
+	if (err) {
 		dev_err(&pdev->dev, "cannot register restart handler (err=%d)\n",
 			err);
+		iounmap(base);
+	}
 
 	return err;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/power/tps65217_charger.c linux-libre-4.4.107-gnu/drivers/power/tps65217_charger.c
--- linux-libre-4.4-gnu/drivers/power/tps65217_charger.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/power/tps65217_charger.c	2017-12-20 04:05:01.000000000 -0500
@@ -205,6 +205,7 @@ static int tps65217_charger_probe(struct
 	if (!charger)
 		return -ENOMEM;
 
+	platform_set_drvdata(pdev, charger);
 	charger->tps = tps;
 	charger->dev = &pdev->dev;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pps/clients/pps_parport.c linux-libre-4.4.107-gnu/drivers/pps/clients/pps_parport.c
--- linux-libre-4.4-gnu/drivers/pps/clients/pps_parport.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/pps/clients/pps_parport.c	2017-12-20 04:05:01.000000000 -0500
@@ -195,7 +195,7 @@ static void parport_detach(struct parpor
 	struct pps_client_pp *device;
 
 	/* FIXME: oooh, this is ugly! */
-	if (strcmp(pardev->name, KBUILD_MODNAME))
+	if (!pardev || strcmp(pardev->name, KBUILD_MODNAME))
 		/* not our port */
 		return;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pwm/core.c linux-libre-4.4.107-gnu/drivers/pwm/core.c
--- linux-libre-4.4-gnu/drivers/pwm/core.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/pwm/core.c	2017-12-20 04:05:01.000000000 -0500
@@ -321,6 +321,8 @@ int pwmchip_remove(struct pwm_chip *chip
 	unsigned int i;
 	int ret = 0;
 
+	pwmchip_sysfs_unexport_children(chip);
+
 	mutex_lock(&pwm_lock);
 
 	for (i = 0; i < chip->npwm; i++) {
@@ -889,7 +891,7 @@ EXPORT_SYMBOL_GPL(devm_pwm_put);
   */
 bool pwm_can_sleep(struct pwm_device *pwm)
 {
-	return pwm->chip->can_sleep;
+	return true;
 }
 EXPORT_SYMBOL_GPL(pwm_can_sleep);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pwm/pwm-brcmstb.c linux-libre-4.4.107-gnu/drivers/pwm/pwm-brcmstb.c
--- linux-libre-4.4-gnu/drivers/pwm/pwm-brcmstb.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/pwm/pwm-brcmstb.c	2017-12-20 04:05:01.000000000 -0500
@@ -274,8 +274,8 @@ static int brcmstb_pwm_probe(struct plat
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	p->base = devm_ioremap_resource(&pdev->dev, res);
-	if (!p->base) {
-		ret = -ENOMEM;
+	if (IS_ERR(p->base)) {
+		ret = PTR_ERR(p->base);
 		goto out_clk;
 	}
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pwm/pwm-fsl-ftm.c linux-libre-4.4.107-gnu/drivers/pwm/pwm-fsl-ftm.c
--- linux-libre-4.4-gnu/drivers/pwm/pwm-fsl-ftm.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/pwm/pwm-fsl-ftm.c	2017-12-20 04:05:01.000000000 -0500
@@ -80,7 +80,6 @@ struct fsl_pwm_chip {
 
 	struct mutex lock;
 
-	unsigned int use_count;
 	unsigned int cnt_select;
 	unsigned int clk_ps;
 
@@ -300,9 +299,6 @@ static int fsl_counter_clock_enable(stru
 {
 	int ret;
 
-	if (fpc->use_count++ != 0)
-		return 0;
-
 	/* select counter clock source */
 	regmap_update_bits(fpc->regmap, FTM_SC, FTM_SC_CLK_MASK,
 			   FTM_SC_CLK(fpc->cnt_select));
@@ -334,25 +330,6 @@ static int fsl_pwm_enable(struct pwm_chi
 	return ret;
 }
 
-static void fsl_counter_clock_disable(struct fsl_pwm_chip *fpc)
-{
-	/*
-	 * already disabled, do nothing
-	 */
-	if (fpc->use_count == 0)
-		return;
-
-	/* there are still users, so can't disable yet */
-	if (--fpc->use_count > 0)
-		return;
-
-	/* no users left, disable PWM counter clock */
-	regmap_update_bits(fpc->regmap, FTM_SC, FTM_SC_CLK_MASK, 0);
-
-	clk_disable_unprepare(fpc->clk[FSL_PWM_CLK_CNTEN]);
-	clk_disable_unprepare(fpc->clk[fpc->cnt_select]);
-}
-
 static void fsl_pwm_disable(struct pwm_chip *chip, struct pwm_device *pwm)
 {
 	struct fsl_pwm_chip *fpc = to_fsl_chip(chip);
@@ -362,7 +339,8 @@ static void fsl_pwm_disable(struct pwm_c
 	regmap_update_bits(fpc->regmap, FTM_OUTMASK, BIT(pwm->hwpwm),
 			   BIT(pwm->hwpwm));
 
-	fsl_counter_clock_disable(fpc);
+	clk_disable_unprepare(fpc->clk[FSL_PWM_CLK_CNTEN]);
+	clk_disable_unprepare(fpc->clk[fpc->cnt_select]);
 
 	regmap_read(fpc->regmap, FTM_OUTMASK, &val);
 	if ((val & 0xFF) == 0xFF)
@@ -492,17 +470,24 @@ static int fsl_pwm_remove(struct platfor
 static int fsl_pwm_suspend(struct device *dev)
 {
 	struct fsl_pwm_chip *fpc = dev_get_drvdata(dev);
-	u32 val;
+	int i;
 
 	regcache_cache_only(fpc->regmap, true);
 	regcache_mark_dirty(fpc->regmap);
 
-	/* read from cache */
-	regmap_read(fpc->regmap, FTM_OUTMASK, &val);
-	if ((val & 0xFF) != 0xFF) {
+	for (i = 0; i < fpc->chip.npwm; i++) {
+		struct pwm_device *pwm = &fpc->chip.pwms[i];
+
+		if (!test_bit(PWMF_REQUESTED, &pwm->flags))
+			continue;
+
+		clk_disable_unprepare(fpc->clk[FSL_PWM_CLK_SYS]);
+
+		if (!pwm_is_enabled(pwm))
+			continue;
+
 		clk_disable_unprepare(fpc->clk[FSL_PWM_CLK_CNTEN]);
 		clk_disable_unprepare(fpc->clk[fpc->cnt_select]);
-		clk_disable_unprepare(fpc->clk[FSL_PWM_CLK_SYS]);
 	}
 
 	return 0;
@@ -511,12 +496,19 @@ static int fsl_pwm_suspend(struct device
 static int fsl_pwm_resume(struct device *dev)
 {
 	struct fsl_pwm_chip *fpc = dev_get_drvdata(dev);
-	u32 val;
+	int i;
+
+	for (i = 0; i < fpc->chip.npwm; i++) {
+		struct pwm_device *pwm = &fpc->chip.pwms[i];
+
+		if (!test_bit(PWMF_REQUESTED, &pwm->flags))
+			continue;
 
-	/* read from cache */
-	regmap_read(fpc->regmap, FTM_OUTMASK, &val);
-	if ((val & 0xFF) != 0xFF) {
 		clk_prepare_enable(fpc->clk[FSL_PWM_CLK_SYS]);
+
+		if (!pwm_is_enabled(pwm))
+			continue;
+
 		clk_prepare_enable(fpc->clk[fpc->cnt_select]);
 		clk_prepare_enable(fpc->clk[FSL_PWM_CLK_CNTEN]);
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pwm/pwm-lpc32xx.c linux-libre-4.4.107-gnu/drivers/pwm/pwm-lpc32xx.c
--- linux-libre-4.4-gnu/drivers/pwm/pwm-lpc32xx.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/pwm/pwm-lpc32xx.c	2017-12-20 04:05:01.000000000 -0500
@@ -24,9 +24,7 @@ struct lpc32xx_pwm_chip {
 	void __iomem *base;
 };
 
-#define PWM_ENABLE	(1 << 31)
-#define PWM_RELOADV(x)	(((x) & 0xFF) << 8)
-#define PWM_DUTY(x)	((x) & 0xFF)
+#define PWM_ENABLE	BIT(31)
 
 #define to_lpc32xx_pwm_chip(_chip) \
 	container_of(_chip, struct lpc32xx_pwm_chip, chip)
@@ -38,40 +36,27 @@ static int lpc32xx_pwm_config(struct pwm
 	unsigned long long c;
 	int period_cycles, duty_cycles;
 	u32 val;
+	c = clk_get_rate(lpc32xx->clk);
 
-	c = clk_get_rate(lpc32xx->clk) / 256;
-	c = c * period_ns;
-	do_div(c, NSEC_PER_SEC);
-
-	/* Handle high and low extremes */
-	if (c == 0)
-		c = 1;
-	if (c > 255)
-		c = 0; /* 0 set division by 256 */
-	period_cycles = c;
+	/* The highest acceptable divisor is 256, which is represented by 0 */
+	period_cycles = div64_u64(c * period_ns,
+			       (unsigned long long)NSEC_PER_SEC * 256);
+	if (!period_cycles)
+		period_cycles = 1;
+	if (period_cycles > 255)
+		period_cycles = 0;
 
-	/* The duty-cycle value is as follows:
-	 *
-	 *  DUTY-CYCLE     HIGH LEVEL
-	 *      1            99.9%
-	 *      25           90.0%
-	 *      128          50.0%
-	 *      220          10.0%
-	 *      255           0.1%
-	 *      0             0.0%
-	 *
-	 * In other words, the register value is duty-cycle % 256 with
-	 * duty-cycle in the range 1-256.
-	 */
-	c = 256 * duty_ns;
-	do_div(c, period_ns);
-	if (c > 255)
-		c = 255;
-	duty_cycles = 256 - c;
+	/* Compute 256 x #duty/period value and care for corner cases */
+	duty_cycles = div64_u64((unsigned long long)(period_ns - duty_ns) * 256,
+				period_ns);
+	if (!duty_cycles)
+		duty_cycles = 1;
+	if (duty_cycles > 255)
+		duty_cycles = 255;
 
 	val = readl(lpc32xx->base + (pwm->hwpwm << 2));
 	val &= ~0xFFFF;
-	val |= PWM_RELOADV(period_cycles) | PWM_DUTY(duty_cycles);
+	val |= (period_cycles << 8) | duty_cycles;
 	writel(val, lpc32xx->base + (pwm->hwpwm << 2));
 
 	return 0;
@@ -134,7 +119,7 @@ static int lpc32xx_pwm_probe(struct plat
 
 	lpc32xx->chip.dev = &pdev->dev;
 	lpc32xx->chip.ops = &lpc32xx_pwm_ops;
-	lpc32xx->chip.npwm = 2;
+	lpc32xx->chip.npwm = 1;
 	lpc32xx->chip.base = -1;
 
 	ret = pwmchip_add(&lpc32xx->chip);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pwm/pwm-pca9685.c linux-libre-4.4.107-gnu/drivers/pwm/pwm-pca9685.c
--- linux-libre-4.4-gnu/drivers/pwm/pwm-pca9685.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/pwm/pwm-pca9685.c	2017-12-20 04:05:01.000000000 -0500
@@ -65,7 +65,6 @@
 #define PCA9685_MAXCHAN		0x10
 
 #define LED_FULL		(1 << 4)
-#define MODE1_RESTART		(1 << 7)
 #define MODE1_SLEEP		(1 << 4)
 #define MODE2_INVRT		(1 << 4)
 #define MODE2_OUTDRV		(1 << 2)
@@ -117,16 +116,6 @@ static int pca9685_pwm_config(struct pwm
 			udelay(500);
 
 			pca->period_ns = period_ns;
-
-			/*
-			 * If the duty cycle did not change, restart PWM with
-			 * the same duty cycle to period ratio and return.
-			 */
-			if (duty_ns == pca->duty_ns) {
-				regmap_update_bits(pca->regmap, PCA9685_MODE1,
-						   MODE1_RESTART, 0x1);
-				return 0;
-			}
 		} else {
 			dev_err(chip->dev,
 				"prescaler not set: period out of bounds!\n");
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/pwm/sysfs.c linux-libre-4.4.107-gnu/drivers/pwm/sysfs.c
--- linux-libre-4.4-gnu/drivers/pwm/sysfs.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/pwm/sysfs.c	2017-12-20 04:05:01.000000000 -0500
@@ -350,6 +350,26 @@ void pwmchip_sysfs_unexport(struct pwm_c
 	}
 }
 
+void pwmchip_sysfs_unexport_children(struct pwm_chip *chip)
+{
+	struct device *parent;
+	unsigned int i;
+
+	parent = class_find_device(&pwm_class, NULL, chip,
+				   pwmchip_sysfs_match);
+	if (!parent)
+		return;
+
+	for (i = 0; i < chip->npwm; i++) {
+		struct pwm_device *pwm = &chip->pwms[i];
+
+		if (test_bit(PWMF_EXPORTED, &pwm->flags))
+			pwm_unexport_child(parent, pwm);
+	}
+
+	put_device(parent);
+}
+
 static int __init pwm_sysfs_init(void)
 {
 	return class_register(&pwm_class);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/regulator/anatop-regulator.c linux-libre-4.4.107-gnu/drivers/regulator/anatop-regulator.c
--- linux-libre-4.4-gnu/drivers/regulator/anatop-regulator.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/regulator/anatop-regulator.c	2017-12-20 04:05:01.000000000 -0500
@@ -296,7 +296,7 @@ static int anatop_regulator_probe(struct
 		if (!sreg->sel && !strcmp(sreg->name, "vddpu"))
 			sreg->sel = 22;
 
-		if (!sreg->sel) {
+		if (!sreg->bypass && !sreg->sel) {
 			dev_err(&pdev->dev, "Failed to read a valid default voltage selector.\n");
 			return -EINVAL;
 		}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/regulator/axp20x-regulator.c linux-libre-4.4.107-gnu/drivers/regulator/axp20x-regulator.c
--- linux-libre-4.4-gnu/drivers/regulator/axp20x-regulator.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/regulator/axp20x-regulator.c	2017-12-20 04:05:01.000000000 -0500
@@ -27,8 +27,8 @@
 #define AXP20X_IO_ENABLED		0x03
 #define AXP20X_IO_DISABLED		0x07
 
-#define AXP22X_IO_ENABLED		0x04
-#define AXP22X_IO_DISABLED		0x03
+#define AXP22X_IO_ENABLED		0x03
+#define AXP22X_IO_DISABLED		0x04
 
 #define AXP20X_WORKMODE_DCDC2_MASK	BIT(2)
 #define AXP20X_WORKMODE_DCDC3_MASK	BIT(1)
@@ -221,10 +221,10 @@ static const struct regulator_desc axp22
 		 AXP22X_ELDO2_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(1)),
 	AXP_DESC(AXP22X, ELDO3, "eldo3", "eldoin", 700, 3300, 100,
 		 AXP22X_ELDO3_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(2)),
-	AXP_DESC_IO(AXP22X, LDO_IO0, "ldo_io0", "ips", 1800, 3300, 100,
+	AXP_DESC_IO(AXP22X, LDO_IO0, "ldo_io0", "ips", 700, 3300, 100,
 		    AXP22X_LDO_IO0_V_OUT, 0x1f, AXP20X_GPIO0_CTRL, 0x07,
 		    AXP22X_IO_ENABLED, AXP22X_IO_DISABLED),
-	AXP_DESC_IO(AXP22X, LDO_IO1, "ldo_io1", "ips", 1800, 3300, 100,
+	AXP_DESC_IO(AXP22X, LDO_IO1, "ldo_io1", "ips", 700, 3300, 100,
 		    AXP22X_LDO_IO1_V_OUT, 0x1f, AXP20X_GPIO1_CTRL, 0x07,
 		    AXP22X_IO_ENABLED, AXP22X_IO_DISABLED),
 	AXP_DESC_FIXED(AXP22X, RTC_LDO, "rtc_ldo", "ips", 3000),
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/regulator/core.c linux-libre-4.4.107-gnu/drivers/regulator/core.c
--- linux-libre-4.4-gnu/drivers/regulator/core.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/regulator/core.c	2017-12-20 04:05:01.000000000 -0500
@@ -132,24 +132,24 @@ static bool have_full_constraints(void)
 	return has_full_constraints || of_have_populated_dt();
 }
 
+static inline struct regulator_dev *rdev_get_supply(struct regulator_dev *rdev)
+{
+	if (rdev && rdev->supply)
+		return rdev->supply->rdev;
+
+	return NULL;
+}
+
 /**
  * regulator_lock_supply - lock a regulator and its supplies
  * @rdev:         regulator source
  */
 static void regulator_lock_supply(struct regulator_dev *rdev)
 {
-	struct regulator *supply;
-	int i = 0;
-
-	while (1) {
-		mutex_lock_nested(&rdev->mutex, i++);
-		supply = rdev->supply;
-
-		if (!rdev->supply)
-			return;
+	int i;
 
-		rdev = supply->rdev;
-	}
+	for (i = 0; rdev; rdev = rdev_get_supply(rdev), i++)
+		mutex_lock_nested(&rdev->mutex, i);
 }
 
 /**
@@ -1519,6 +1519,7 @@ static int regulator_resolve_supply(stru
 		ret = regulator_enable(rdev->supply);
 		if (ret < 0) {
 			_regulator_put(rdev->supply);
+			rdev->supply = NULL;
 			return ret;
 		}
 	}
@@ -4273,12 +4274,13 @@ static void regulator_summary_show_subtr
 	seq_puts(s, "\n");
 
 	list_for_each_entry(consumer, &rdev->consumer_list, list) {
-		if (consumer->dev->class == &regulator_class)
+		if (consumer->dev && consumer->dev->class == &regulator_class)
 			continue;
 
 		seq_printf(s, "%*s%-*s ",
 			   (level + 1) * 3 + 1, "",
-			   30 - (level + 1) * 3, dev_name(consumer->dev));
+			   30 - (level + 1) * 3,
+			   consumer->dev ? dev_name(consumer->dev) : "deviceless");
 
 		switch (rdev->desc->type) {
 		case REGULATOR_VOLTAGE:
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/regulator/fan53555.c linux-libre-4.4.107-gnu/drivers/regulator/fan53555.c
--- linux-libre-4.4-gnu/drivers/regulator/fan53555.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/regulator/fan53555.c	2017-12-20 04:05:01.000000000 -0500
@@ -434,7 +434,10 @@ static const struct i2c_device_id fan535
 		.name = "fan53555",
 		.driver_data = FAN53555_VENDOR_FAIRCHILD
 	}, {
-		.name = "syr82x",
+		.name = "syr827",
+		.driver_data = FAN53555_VENDOR_SILERGY
+	}, {
+		.name = "syr828",
 		.driver_data = FAN53555_VENDOR_SILERGY
 	},
 	{ },
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/regulator/Kconfig linux-libre-4.4.107-gnu/drivers/regulator/Kconfig
--- linux-libre-4.4-gnu/drivers/regulator/Kconfig	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/regulator/Kconfig	2017-12-20 04:05:01.000000000 -0500
@@ -446,6 +446,7 @@ config REGULATOR_MC13892
 config REGULATOR_MT6311
 	tristate "MediaTek MT6311 PMIC"
 	depends on I2C
+	select REGMAP_I2C
 	help
 	  Say y here to select this option to enable the power regulator of
 	  MediaTek MT6311 PMIC.
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/regulator/qcom_smd-regulator.c linux-libre-4.4.107-gnu/drivers/regulator/qcom_smd-regulator.c
--- linux-libre-4.4-gnu/drivers/regulator/qcom_smd-regulator.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/regulator/qcom_smd-regulator.c	2017-12-20 04:05:01.000000000 -0500
@@ -166,29 +166,30 @@ static const struct regulator_desc pm8x4
 static const struct regulator_desc pm8841_ftsmps = {
 	.linear_ranges = (struct regulator_linear_range[]) {
 		REGULATOR_LINEAR_RANGE(350000,  0, 184, 5000),
-		REGULATOR_LINEAR_RANGE(700000, 185, 339, 10000),
+		REGULATOR_LINEAR_RANGE(1280000, 185, 261, 10000),
 	},
 	.n_linear_ranges = 2,
-	.n_voltages = 340,
+	.n_voltages = 262,
 	.ops = &rpm_smps_ldo_ops,
 };
 
 static const struct regulator_desc pm8941_boost = {
 	.linear_ranges = (struct regulator_linear_range[]) {
-		REGULATOR_LINEAR_RANGE(4000000, 0, 15, 100000),
+		REGULATOR_LINEAR_RANGE(4000000, 0, 30, 50000),
 	},
 	.n_linear_ranges = 1,
-	.n_voltages = 16,
+	.n_voltages = 31,
 	.ops = &rpm_smps_ldo_ops,
 };
 
 static const struct regulator_desc pm8941_pldo = {
 	.linear_ranges = (struct regulator_linear_range[]) {
-		REGULATOR_LINEAR_RANGE( 750000,  0,  30, 25000),
-		REGULATOR_LINEAR_RANGE(1500000, 31, 99, 50000),
+		REGULATOR_LINEAR_RANGE( 750000,  0,  63, 12500),
+		REGULATOR_LINEAR_RANGE(1550000, 64, 126, 25000),
+		REGULATOR_LINEAR_RANGE(3100000, 127, 163, 50000),
 	},
-	.n_linear_ranges = 2,
-	.n_voltages = 100,
+	.n_linear_ranges = 3,
+	.n_voltages = 164,
 	.ops = &rpm_smps_ldo_ops,
 };
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/regulator/qcom_spmi-regulator.c linux-libre-4.4.107-gnu/drivers/regulator/qcom_spmi-regulator.c
--- linux-libre-4.4-gnu/drivers/regulator/qcom_spmi-regulator.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/regulator/qcom_spmi-regulator.c	2017-12-20 04:05:01.000000000 -0500
@@ -1050,6 +1050,8 @@ static struct regulator_ops spmi_vs_ops
 	.set_pull_down		= spmi_regulator_common_set_pull_down,
 	.set_soft_start		= spmi_regulator_common_set_soft_start,
 	.set_over_current_protection = spmi_regulator_vs_ocp,
+	.set_mode		= spmi_regulator_common_set_mode,
+	.get_mode		= spmi_regulator_common_get_mode,
 };
 
 static struct regulator_ops spmi_boost_ops = {
@@ -1440,6 +1442,7 @@ static const struct spmi_regulator_data
 	{ "s1", 0x1400, "vdd_s1", },
 	{ "s2", 0x1700, "vdd_s2", },
 	{ "s3", 0x1a00, "vdd_s3", },
+	{ "s4", 0xa000, },
 	{ "l1", 0x4000, "vdd_l1_l3", },
 	{ "l2", 0x4100, "vdd_l2_lvs_1_2_3", },
 	{ "l3", 0x4200, "vdd_l1_l3", },
@@ -1467,8 +1470,8 @@ static const struct spmi_regulator_data
 	{ "lvs1", 0x8000, "vdd_l2_lvs_1_2_3", },
 	{ "lvs2", 0x8100, "vdd_l2_lvs_1_2_3", },
 	{ "lvs3", 0x8200, "vdd_l2_lvs_1_2_3", },
-	{ "mvs1", 0x8300, "vin_5vs", },
-	{ "mvs2", 0x8400, "vin_5vs", },
+	{ "5vs1", 0x8300, "vin_5vs", "ocp-5vs1", },
+	{ "5vs2", 0x8400, "vin_5vs", "ocp-5vs2", },
 	{ }
 };
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/regulator/s2mps11.c linux-libre-4.4.107-gnu/drivers/regulator/s2mps11.c
--- linux-libre-4.4-gnu/drivers/regulator/s2mps11.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/regulator/s2mps11.c	2017-12-20 04:05:01.000000000 -0500
@@ -305,7 +305,7 @@ static struct regulator_ops s2mps11_buck
 	.enable_mask	= S2MPS11_ENABLE_MASK			\
 }
 
-#define regulator_desc_s2mps11_buck6_10(num, min, step) {	\
+#define regulator_desc_s2mps11_buck67810(num, min, step) {	\
 	.name		= "BUCK"#num,				\
 	.id		= S2MPS11_BUCK##num,			\
 	.ops		= &s2mps11_buck_ops,			\
@@ -321,6 +321,22 @@ static struct regulator_ops s2mps11_buck
 	.enable_mask	= S2MPS11_ENABLE_MASK			\
 }
 
+#define regulator_desc_s2mps11_buck9 {				\
+	.name		= "BUCK9",				\
+	.id		= S2MPS11_BUCK9,			\
+	.ops		= &s2mps11_buck_ops,			\
+	.type		= REGULATOR_VOLTAGE,			\
+	.owner		= THIS_MODULE,				\
+	.min_uV		= MIN_3000_MV,				\
+	.uV_step	= STEP_25_MV,				\
+	.n_voltages	= S2MPS11_BUCK9_N_VOLTAGES,		\
+	.ramp_delay	= S2MPS11_RAMP_DELAY,			\
+	.vsel_reg	= S2MPS11_REG_B9CTRL2,			\
+	.vsel_mask	= S2MPS11_BUCK9_VSEL_MASK,		\
+	.enable_reg	= S2MPS11_REG_B9CTRL1,			\
+	.enable_mask	= S2MPS11_ENABLE_MASK			\
+}
+
 static const struct regulator_desc s2mps11_regulators[] = {
 	regulator_desc_s2mps11_ldo(1, STEP_25_MV),
 	regulator_desc_s2mps11_ldo(2, STEP_50_MV),
@@ -365,11 +381,11 @@ static const struct regulator_desc s2mps
 	regulator_desc_s2mps11_buck1_4(3),
 	regulator_desc_s2mps11_buck1_4(4),
 	regulator_desc_s2mps11_buck5,
-	regulator_desc_s2mps11_buck6_10(6, MIN_600_MV, STEP_6_25_MV),
-	regulator_desc_s2mps11_buck6_10(7, MIN_600_MV, STEP_6_25_MV),
-	regulator_desc_s2mps11_buck6_10(8, MIN_600_MV, STEP_6_25_MV),
-	regulator_desc_s2mps11_buck6_10(9, MIN_3000_MV, STEP_25_MV),
-	regulator_desc_s2mps11_buck6_10(10, MIN_750_MV, STEP_12_5_MV),
+	regulator_desc_s2mps11_buck67810(6, MIN_600_MV, STEP_6_25_MV),
+	regulator_desc_s2mps11_buck67810(7, MIN_600_MV, STEP_6_25_MV),
+	regulator_desc_s2mps11_buck67810(8, MIN_600_MV, STEP_6_25_MV),
+	regulator_desc_s2mps11_buck9,
+	regulator_desc_s2mps11_buck67810(10, MIN_750_MV, STEP_12_5_MV),
 };
 
 static struct regulator_ops s2mps14_reg_ops;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/regulator/s5m8767.c linux-libre-4.4.107-gnu/drivers/regulator/s5m8767.c
--- linux-libre-4.4-gnu/drivers/regulator/s5m8767.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/regulator/s5m8767.c	2017-12-20 04:05:01.000000000 -0500
@@ -202,9 +202,10 @@ static int s5m8767_get_register(struct s
 		}
 	}
 
-	if (i < s5m8767->num_regulators)
-		*enable_ctrl =
-		s5m8767_opmode_reg[reg_id][mode] << S5M8767_ENCTRL_SHIFT;
+	if (i >= s5m8767->num_regulators)
+		return -EINVAL;
+
+	*enable_ctrl = s5m8767_opmode_reg[reg_id][mode] << S5M8767_ENCTRL_SHIFT;
 
 	return 0;
 }
@@ -937,8 +938,12 @@ static int s5m8767_pmic_probe(struct pla
 			else
 				regulators[id].vsel_mask = 0xff;
 
-			s5m8767_get_register(s5m8767, id, &enable_reg,
+			ret = s5m8767_get_register(s5m8767, id, &enable_reg,
 					     &enable_val);
+			if (ret) {
+				dev_err(s5m8767->dev, "error reading registers\n");
+				return ret;
+			}
 			regulators[id].enable_reg = enable_reg;
 			regulators[id].enable_mask = S5M8767_ENCTRL_MASK;
 			regulators[id].enable_val = enable_val;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/regulator/stw481x-vmmc.c linux-libre-4.4.107-gnu/drivers/regulator/stw481x-vmmc.c
--- linux-libre-4.4-gnu/drivers/regulator/stw481x-vmmc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/regulator/stw481x-vmmc.c	2017-12-20 04:05:01.000000000 -0500
@@ -47,7 +47,8 @@ static struct regulator_desc vmmc_regula
 	.volt_table = stw481x_vmmc_voltages,
 	.enable_time = 200, /* FIXME: look this up */
 	.enable_reg = STW_CONF1,
-	.enable_mask = STW_CONF1_PDN_VMMC,
+	.enable_mask = STW_CONF1_PDN_VMMC | STW_CONF1_MMC_LS_STATUS,
+	.enable_val = STW_CONF1_PDN_VMMC,
 	.vsel_reg = STW_CONF1,
 	.vsel_mask = STW_CONF1_VMMC_MASK,
 };
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/regulator/tps65023-regulator.c linux-libre-4.4.107-gnu/drivers/regulator/tps65023-regulator.c
--- linux-libre-4.4-gnu/drivers/regulator/tps65023-regulator.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/regulator/tps65023-regulator.c	2017-12-20 04:05:01.000000000 -0500
@@ -311,8 +311,7 @@ static int tps_65023_probe(struct i2c_cl
 
 	/* Enable setting output voltage by I2C */
 	regmap_update_bits(tps->regmap, TPS65023_REG_CON_CTRL2,
-					TPS65023_REG_CTRL2_CORE_ADJ,
-					TPS65023_REG_CTRL2_CORE_ADJ);
+			   TPS65023_REG_CTRL2_CORE_ADJ, 0);
 
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/regulator/tps65910-regulator.c linux-libre-4.4.107-gnu/drivers/regulator/tps65910-regulator.c
--- linux-libre-4.4-gnu/drivers/regulator/tps65910-regulator.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/regulator/tps65910-regulator.c	2017-12-20 04:05:01.000000000 -0500
@@ -1111,6 +1111,12 @@ static int tps65910_probe(struct platfor
 		pmic->num_regulators = ARRAY_SIZE(tps65910_regs);
 		pmic->ext_sleep_control = tps65910_ext_sleep_control;
 		info = tps65910_regs;
+		/* Work around silicon erratum SWCZ010: output programmed
+		 * voltage level can go higher than expected or crash
+		 * Workaround: use no synchronization of DCDC clocks
+		 */
+		tps65910_reg_clear_bits(pmic->mfd, TPS65910_DCDCCTRL,
+					DCDCCTRL_DCDCCKSYNC_MASK);
 		break;
 	case TPS65911:
 		pmic->get_ctrl_reg = &tps65911_get_ctrl_register;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/remoteproc/remoteproc_core.c linux-libre-4.4.107-gnu/drivers/remoteproc/remoteproc_core.c
--- linux-libre-4.4-gnu/drivers/remoteproc/remoteproc_core.c	2016-01-10 21:16:05.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/remoteproc/remoteproc_core.c	2017-12-20 11:45:45.000000000 -0500
@@ -1239,11 +1239,6 @@ int rproc_add(struct rproc *rproc)
 	if (ret < 0)
 		return ret;
 
-	/* expose to rproc_get_by_phandle users */
-	mutex_lock(&rproc_list_mutex);
-	list_add(&rproc->node, &rproc_list);
-	mutex_unlock(&rproc_list_mutex);
-
 	dev_info(dev, "%s is available\n", rproc->name);
 
 	dev_info(dev, "Note: remoteproc is still under development and considered experimental.\n");
@@ -1251,8 +1246,16 @@ int rproc_add(struct rproc *rproc)
 
 	/* create debugfs entries */
 	rproc_create_debug_dir(rproc);
+	ret = rproc_add_virtio_devices(rproc);
+	if (ret < 0)
+		return ret;
 
-	return rproc_add_virtio_devices(rproc);
+	/* expose to rproc_get_by_phandle users */
+	mutex_lock(&rproc_list_mutex);
+	list_add(&rproc->node, &rproc_list);
+	mutex_unlock(&rproc_list_mutex);
+
+	return 0;
 }
 EXPORT_SYMBOL(rproc_add);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/rtc/interface.c linux-libre-4.4.107-gnu/drivers/rtc/interface.c
--- linux-libre-4.4-gnu/drivers/rtc/interface.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/rtc/interface.c	2017-12-20 04:05:01.000000000 -0500
@@ -748,9 +748,23 @@ EXPORT_SYMBOL_GPL(rtc_irq_set_freq);
  */
 static int rtc_timer_enqueue(struct rtc_device *rtc, struct rtc_timer *timer)
 {
+	struct timerqueue_node *next = timerqueue_getnext(&rtc->timerqueue);
+	struct rtc_time tm;
+	ktime_t now;
+
 	timer->enabled = 1;
+	__rtc_read_time(rtc, &tm);
+	now = rtc_tm_to_ktime(tm);
+
+	/* Skip over expired timers */
+	while (next) {
+		if (next->expires.tv64 >= now.tv64)
+			break;
+		next = timerqueue_iterate_next(next);
+	}
+
 	timerqueue_add(&rtc->timerqueue, &timer->node);
-	if (&timer->node == timerqueue_getnext(&rtc->timerqueue)) {
+	if (!next) {
 		struct rtc_wkalrm alarm;
 		int err;
 		alarm.time = rtc_ktime_to_tm(timer->node.expires);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/rtc/rtc-ds1685.c linux-libre-4.4.107-gnu/drivers/rtc/rtc-ds1685.c
--- linux-libre-4.4-gnu/drivers/rtc/rtc-ds1685.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/rtc/rtc-ds1685.c	2017-12-20 04:05:01.000000000 -0500
@@ -187,9 +187,9 @@ ds1685_rtc_end_data_access(struct ds1685
  * Only use this where you are certain another lock will not be held.
  */
 static inline void
-ds1685_rtc_begin_ctrl_access(struct ds1685_priv *rtc, unsigned long flags)
+ds1685_rtc_begin_ctrl_access(struct ds1685_priv *rtc, unsigned long *flags)
 {
-	spin_lock_irqsave(&rtc->lock, flags);
+	spin_lock_irqsave(&rtc->lock, *flags);
 	ds1685_rtc_switch_to_bank1(rtc);
 }
 
@@ -1304,7 +1304,7 @@ ds1685_rtc_sysfs_ctrl_regs_store(struct
 {
 	struct ds1685_priv *rtc = dev_get_drvdata(dev);
 	u8 reg = 0, bit = 0, tmp;
-	unsigned long flags = 0;
+	unsigned long flags;
 	long int val = 0;
 	const struct ds1685_rtc_ctrl_regs *reg_info =
 		ds1685_rtc_sysfs_ctrl_regs_lookup(attr->attr.name);
@@ -1325,7 +1325,7 @@ ds1685_rtc_sysfs_ctrl_regs_store(struct
 	bit = reg_info->bit;
 
 	/* Safe to spinlock during a write. */
-	ds1685_rtc_begin_ctrl_access(rtc, flags);
+	ds1685_rtc_begin_ctrl_access(rtc, &flags);
 	tmp = rtc->read(rtc, reg);
 	rtc->write(rtc, reg, (val ? (tmp | bit) : (tmp & ~(bit))));
 	ds1685_rtc_end_ctrl_access(rtc, flags);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/rtc/rtc-hym8563.c linux-libre-4.4.107-gnu/drivers/rtc/rtc-hym8563.c
--- linux-libre-4.4-gnu/drivers/rtc/rtc-hym8563.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/rtc/rtc-hym8563.c	2017-12-20 04:05:01.000000000 -0500
@@ -144,7 +144,7 @@ static int hym8563_rtc_set_time(struct d
 	 * it does not seem to carry it over a subsequent write/read.
 	 * So we'll limit ourself to 100 years, starting at 2000 for now.
 	 */
-	buf[6] = tm->tm_year - 100;
+	buf[6] = bin2bcd(tm->tm_year - 100);
 
 	/*
 	 * CTL1 only contains TEST-mode bits apart from stop,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/rtc/rtc-max77686.c linux-libre-4.4.107-gnu/drivers/rtc/rtc-max77686.c
--- linux-libre-4.4-gnu/drivers/rtc/rtc-max77686.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/rtc/rtc-max77686.c	2017-12-20 04:05:01.000000000 -0500
@@ -465,7 +465,7 @@ static int max77686_rtc_probe(struct pla
 
 	info->virq = regmap_irq_get_virq(max77686->rtc_irq_data,
 					 MAX77686_RTCIRQ_RTCA1);
-	if (!info->virq) {
+	if (info->virq <= 0) {
 		ret = -ENXIO;
 		goto err_rtc;
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/rtc/rtc-omap.c linux-libre-4.4.107-gnu/drivers/rtc/rtc-omap.c
--- linux-libre-4.4-gnu/drivers/rtc/rtc-omap.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/rtc/rtc-omap.c	2017-12-20 04:05:01.000000000 -0500
@@ -109,6 +109,7 @@
 /* OMAP_RTC_OSC_REG bit fields: */
 #define OMAP_RTC_OSC_32KCLK_EN		BIT(6)
 #define OMAP_RTC_OSC_SEL_32KCLK_SRC	BIT(3)
+#define OMAP_RTC_OSC_OSC32K_GZ_DISABLE	BIT(4)
 
 /* OMAP_RTC_IRQWAKEEN bit fields: */
 #define OMAP_RTC_IRQWAKEEN_ALARM_WAKEEN	BIT(1)
@@ -646,8 +647,9 @@ static int omap_rtc_probe(struct platfor
 	 */
 	if (rtc->has_ext_clk) {
 		reg = rtc_read(rtc, OMAP_RTC_OSC_REG);
-		rtc_write(rtc, OMAP_RTC_OSC_REG,
-			  reg | OMAP_RTC_OSC_SEL_32KCLK_SRC);
+		reg &= ~OMAP_RTC_OSC_OSC32K_GZ_DISABLE;
+		reg |= OMAP_RTC_OSC_32KCLK_EN | OMAP_RTC_OSC_SEL_32KCLK_SRC;
+		rtc_writel(rtc, OMAP_RTC_OSC_REG, reg);
 	}
 
 	rtc->type->lock(rtc);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/rtc/rtc-pcf8563.c linux-libre-4.4.107-gnu/drivers/rtc/rtc-pcf8563.c
--- linux-libre-4.4-gnu/drivers/rtc/rtc-pcf8563.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/rtc/rtc-pcf8563.c	2017-12-20 04:05:01.000000000 -0500
@@ -427,7 +427,7 @@ static unsigned long pcf8563_clkout_reca
 		return 0;
 
 	buf &= PCF8563_REG_CLKO_F_MASK;
-	return clkout_rates[ret];
+	return clkout_rates[buf];
 }
 
 static long pcf8563_clkout_round_rate(struct clk_hw *hw, unsigned long rate,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/rtc/rtc-rx8025.c linux-libre-4.4.107-gnu/drivers/rtc/rtc-rx8025.c
--- linux-libre-4.4-gnu/drivers/rtc/rtc-rx8025.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/rtc/rtc-rx8025.c	2017-12-20 04:05:01.000000000 -0500
@@ -65,7 +65,6 @@
 
 static const struct i2c_device_id rx8025_id[] = {
 	{ "rx8025", 0 },
-	{ "rv8803", 1 },
 	{ }
 };
 MODULE_DEVICE_TABLE(i2c, rx8025_id);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/rtc/rtc-s35390a.c linux-libre-4.4.107-gnu/drivers/rtc/rtc-s35390a.c
--- linux-libre-4.4-gnu/drivers/rtc/rtc-s35390a.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/rtc/rtc-s35390a.c	2017-12-20 04:05:01.000000000 -0500
@@ -15,6 +15,7 @@
 #include <linux/bitrev.h>
 #include <linux/bcd.h>
 #include <linux/slab.h>
+#include <linux/delay.h>
 
 #define S35390A_CMD_STATUS1	0
 #define S35390A_CMD_STATUS2	1
@@ -34,10 +35,14 @@
 #define S35390A_ALRM_BYTE_HOURS	1
 #define S35390A_ALRM_BYTE_MINS	2
 
+/* flags for STATUS1 */
 #define S35390A_FLAG_POC	0x01
 #define S35390A_FLAG_BLD	0x02
+#define S35390A_FLAG_INT2	0x04
 #define S35390A_FLAG_24H	0x40
 #define S35390A_FLAG_RESET	0x80
+
+/* flag for STATUS2 */
 #define S35390A_FLAG_TEST	0x01
 
 #define S35390A_INT2_MODE_MASK		0xF0
@@ -94,19 +99,63 @@ static int s35390a_get_reg(struct s35390
 	return 0;
 }
 
-static int s35390a_reset(struct s35390a *s35390a)
+/*
+ * Returns <0 on error, 0 if rtc is setup fine and 1 if the chip was reset.
+ * To keep the information if an irq is pending, pass the value read from
+ * STATUS1 to the caller.
+ */
+static int s35390a_reset(struct s35390a *s35390a, char *status1)
 {
-	char buf[1];
+	char buf;
+	int ret;
+	unsigned initcount = 0;
 
-	if (s35390a_get_reg(s35390a, S35390A_CMD_STATUS1, buf, sizeof(buf)) < 0)
-		return -EIO;
+	ret = s35390a_get_reg(s35390a, S35390A_CMD_STATUS1, status1, 1);
+	if (ret < 0)
+		return ret;
 
-	if (!(buf[0] & (S35390A_FLAG_POC | S35390A_FLAG_BLD)))
+	if (*status1 & S35390A_FLAG_POC)
+		/*
+		 * Do not communicate for 0.5 seconds since the power-on
+		 * detection circuit is in operation.
+		 */
+		msleep(500);
+	else if (!(*status1 & S35390A_FLAG_BLD))
+		/*
+		 * If both POC and BLD are unset everything is fine.
+		 */
 		return 0;
 
-	buf[0] |= (S35390A_FLAG_RESET | S35390A_FLAG_24H);
-	buf[0] &= 0xf0;
-	return s35390a_set_reg(s35390a, S35390A_CMD_STATUS1, buf, sizeof(buf));
+	/*
+	 * At least one of POC and BLD are set, so reinitialise chip. Keeping
+	 * this information in the hardware to know later that the time isn't
+	 * valid is unfortunately not possible because POC and BLD are cleared
+	 * on read. So the reset is best done now.
+	 *
+	 * The 24H bit is kept over reset, so set it already here.
+	 */
+initialize:
+	*status1 = S35390A_FLAG_24H;
+	buf = S35390A_FLAG_RESET | S35390A_FLAG_24H;
+	ret = s35390a_set_reg(s35390a, S35390A_CMD_STATUS1, &buf, 1);
+
+	if (ret < 0)
+		return ret;
+
+	ret = s35390a_get_reg(s35390a, S35390A_CMD_STATUS1, &buf, 1);
+	if (ret < 0)
+		return ret;
+
+	if (buf & (S35390A_FLAG_POC | S35390A_FLAG_BLD)) {
+		/* Try up to five times to reset the chip */
+		if (initcount < 5) {
+			++initcount;
+			goto initialize;
+		} else
+			return -EIO;
+	}
+
+	return 1;
 }
 
 static int s35390a_disable_test_mode(struct s35390a *s35390a)
@@ -242,6 +291,8 @@ static int s35390a_set_alarm(struct i2c_
 
 	if (alm->time.tm_wday != -1)
 		buf[S35390A_ALRM_BYTE_WDAY] = bin2bcd(alm->time.tm_wday) | 0x80;
+	else
+		buf[S35390A_ALRM_BYTE_WDAY] = 0;
 
 	buf[S35390A_ALRM_BYTE_HOURS] = s35390a_hr2reg(s35390a,
 			alm->time.tm_hour) | 0x80;
@@ -265,27 +316,61 @@ static int s35390a_read_alarm(struct i2c
 	char buf[3], sts;
 	int i, err;
 
+	/*
+	 * initialize all members to -1 to signal the core that they are not
+	 * defined by the hardware.
+	 */
+	alm->time.tm_sec = -1;
+	alm->time.tm_min = -1;
+	alm->time.tm_hour = -1;
+	alm->time.tm_mday = -1;
+	alm->time.tm_mon = -1;
+	alm->time.tm_year = -1;
+	alm->time.tm_wday = -1;
+	alm->time.tm_yday = -1;
+	alm->time.tm_isdst = -1;
+
 	err = s35390a_get_reg(s35390a, S35390A_CMD_STATUS2, &sts, sizeof(sts));
 	if (err < 0)
 		return err;
 
-	if (bitrev8(sts) != S35390A_INT2_MODE_ALARM)
-		return -EINVAL;
+	if ((bitrev8(sts) & S35390A_INT2_MODE_MASK) != S35390A_INT2_MODE_ALARM) {
+		/*
+		 * When the alarm isn't enabled, the register to configure
+		 * the alarm time isn't accessible.
+		 */
+		alm->enabled = 0;
+		return 0;
+	} else {
+		alm->enabled = 1;
+	}
 
 	err = s35390a_get_reg(s35390a, S35390A_CMD_INT2_REG1, buf, sizeof(buf));
 	if (err < 0)
 		return err;
 
 	/* This chip returns the bits of each byte in reverse order */
-	for (i = 0; i < 3; ++i) {
+	for (i = 0; i < 3; ++i)
 		buf[i] = bitrev8(buf[i]);
-		buf[i] &= ~0x80;
-	}
 
-	alm->time.tm_wday = bcd2bin(buf[S35390A_ALRM_BYTE_WDAY]);
-	alm->time.tm_hour = s35390a_reg2hr(s35390a,
-						buf[S35390A_ALRM_BYTE_HOURS]);
-	alm->time.tm_min = bcd2bin(buf[S35390A_ALRM_BYTE_MINS]);
+	/*
+	 * B0 of the three matching registers is an enable flag. Iff it is set
+	 * the configured value is used for matching.
+	 */
+	if (buf[S35390A_ALRM_BYTE_WDAY] & 0x80)
+		alm->time.tm_wday =
+			bcd2bin(buf[S35390A_ALRM_BYTE_WDAY] & ~0x80);
+
+	if (buf[S35390A_ALRM_BYTE_HOURS] & 0x80)
+		alm->time.tm_hour =
+			s35390a_reg2hr(s35390a,
+				       buf[S35390A_ALRM_BYTE_HOURS] & ~0x80);
+
+	if (buf[S35390A_ALRM_BYTE_MINS] & 0x80)
+		alm->time.tm_min = bcd2bin(buf[S35390A_ALRM_BYTE_MINS] & ~0x80);
+
+	/* alarm triggers always at s=0 */
+	alm->time.tm_sec = 0;
 
 	dev_dbg(&client->dev, "%s: alm is mins=%d, hours=%d, wday=%d\n",
 			__func__, alm->time.tm_min, alm->time.tm_hour,
@@ -327,11 +412,11 @@ static struct i2c_driver s35390a_driver;
 static int s35390a_probe(struct i2c_client *client,
 			 const struct i2c_device_id *id)
 {
-	int err;
+	int err, err_reset;
 	unsigned int i;
 	struct s35390a *s35390a;
 	struct rtc_time tm;
-	char buf[1];
+	char buf, status1;
 
 	if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
 		err = -ENODEV;
@@ -360,29 +445,35 @@ static int s35390a_probe(struct i2c_clie
 		}
 	}
 
-	err = s35390a_reset(s35390a);
-	if (err < 0) {
+	err_reset = s35390a_reset(s35390a, &status1);
+	if (err_reset < 0) {
+		err = err_reset;
 		dev_err(&client->dev, "error resetting chip\n");
 		goto exit_dummy;
 	}
 
-	err = s35390a_disable_test_mode(s35390a);
-	if (err < 0) {
-		dev_err(&client->dev, "error disabling test mode\n");
-		goto exit_dummy;
-	}
-
-	err = s35390a_get_reg(s35390a, S35390A_CMD_STATUS1, buf, sizeof(buf));
-	if (err < 0) {
-		dev_err(&client->dev, "error checking 12/24 hour mode\n");
-		goto exit_dummy;
-	}
-	if (buf[0] & S35390A_FLAG_24H)
+	if (status1 & S35390A_FLAG_24H)
 		s35390a->twentyfourhour = 1;
 	else
 		s35390a->twentyfourhour = 0;
 
-	if (s35390a_get_datetime(client, &tm) < 0)
+	if (status1 & S35390A_FLAG_INT2) {
+		/* disable alarm (and maybe test mode) */
+		buf = 0;
+		err = s35390a_set_reg(s35390a, S35390A_CMD_STATUS2, &buf, 1);
+		if (err < 0) {
+			dev_err(&client->dev, "error disabling alarm");
+			goto exit_dummy;
+		}
+	} else {
+		err = s35390a_disable_test_mode(s35390a);
+		if (err < 0) {
+			dev_err(&client->dev, "error disabling test mode\n");
+			goto exit_dummy;
+		}
+	}
+
+	if (err_reset > 0 || s35390a_get_datetime(client, &tm) < 0)
 		dev_warn(&client->dev, "clock needs to be set\n");
 
 	device_set_wakeup_capable(&client->dev, 1);
@@ -395,6 +486,10 @@ static int s35390a_probe(struct i2c_clie
 		err = PTR_ERR(s35390a->rtc);
 		goto exit_dummy;
 	}
+
+	if (status1 & S35390A_FLAG_INT2)
+		rtc_update_irq(s35390a->rtc, 1, RTC_AF);
+
 	return 0;
 
 exit_dummy:
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/rtc/rtc-s3c.c linux-libre-4.4.107-gnu/drivers/rtc/rtc-s3c.c
--- linux-libre-4.4-gnu/drivers/rtc/rtc-s3c.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/rtc/rtc-s3c.c	2017-12-20 04:05:01.000000000 -0500
@@ -149,12 +149,14 @@ static int s3c_rtc_setfreq(struct s3c_rt
 	if (!is_power_of_2(freq))
 		return -EINVAL;
 
+	s3c_rtc_enable_clk(info);
 	spin_lock_irq(&info->pie_lock);
 
 	if (info->data->set_freq)
 		info->data->set_freq(info, freq);
 
 	spin_unlock_irq(&info->pie_lock);
+	s3c_rtc_disable_clk(info);
 
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/rtc/rtc-sun6i.c linux-libre-4.4.107-gnu/drivers/rtc/rtc-sun6i.c
--- linux-libre-4.4-gnu/drivers/rtc/rtc-sun6i.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/rtc/rtc-sun6i.c	2017-12-20 04:05:01.000000000 -0500
@@ -37,9 +37,11 @@
 
 /* Control register */
 #define SUN6I_LOSC_CTRL				0x0000
+#define SUN6I_LOSC_CTRL_KEY			(0x16aa << 16)
 #define SUN6I_LOSC_CTRL_ALM_DHMS_ACC		BIT(9)
 #define SUN6I_LOSC_CTRL_RTC_HMS_ACC		BIT(8)
 #define SUN6I_LOSC_CTRL_RTC_YMD_ACC		BIT(7)
+#define SUN6I_LOSC_CTRL_EXT_OSC			BIT(0)
 #define SUN6I_LOSC_CTRL_ACC_MASK		GENMASK(9, 7)
 
 /* RTC */
@@ -114,13 +116,17 @@ struct sun6i_rtc_dev {
 	void __iomem *base;
 	int irq;
 	unsigned long alarm;
+
+	spinlock_t lock;
 };
 
 static irqreturn_t sun6i_rtc_alarmirq(int irq, void *id)
 {
 	struct sun6i_rtc_dev *chip = (struct sun6i_rtc_dev *) id;
+	irqreturn_t ret = IRQ_NONE;
 	u32 val;
 
+	spin_lock(&chip->lock);
 	val = readl(chip->base + SUN6I_ALRM_IRQ_STA);
 
 	if (val & SUN6I_ALRM_IRQ_STA_CNT_IRQ_PEND) {
@@ -129,10 +135,11 @@ static irqreturn_t sun6i_rtc_alarmirq(in
 
 		rtc_update_irq(chip->rtc, 1, RTC_AF | RTC_IRQF);
 
-		return IRQ_HANDLED;
+		ret = IRQ_HANDLED;
 	}
+	spin_unlock(&chip->lock);
 
-	return IRQ_NONE;
+	return ret;
 }
 
 static void sun6i_rtc_setaie(int to, struct sun6i_rtc_dev *chip)
@@ -140,6 +147,7 @@ static void sun6i_rtc_setaie(int to, str
 	u32 alrm_val = 0;
 	u32 alrm_irq_val = 0;
 	u32 alrm_wake_val = 0;
+	unsigned long flags;
 
 	if (to) {
 		alrm_val = SUN6I_ALRM_EN_CNT_EN;
@@ -150,9 +158,11 @@ static void sun6i_rtc_setaie(int to, str
 		       chip->base + SUN6I_ALRM_IRQ_STA);
 	}
 
+	spin_lock_irqsave(&chip->lock, flags);
 	writel(alrm_val, chip->base + SUN6I_ALRM_EN);
 	writel(alrm_irq_val, chip->base + SUN6I_ALRM_IRQ_EN);
 	writel(alrm_wake_val, chip->base + SUN6I_ALARM_CONFIG);
+	spin_unlock_irqrestore(&chip->lock, flags);
 }
 
 static int sun6i_rtc_gettime(struct device *dev, struct rtc_time *rtc_tm)
@@ -191,11 +201,15 @@ static int sun6i_rtc_gettime(struct devi
 static int sun6i_rtc_getalarm(struct device *dev, struct rtc_wkalrm *wkalrm)
 {
 	struct sun6i_rtc_dev *chip = dev_get_drvdata(dev);
+	unsigned long flags;
 	u32 alrm_st;
 	u32 alrm_en;
 
+	spin_lock_irqsave(&chip->lock, flags);
 	alrm_en = readl(chip->base + SUN6I_ALRM_IRQ_EN);
 	alrm_st = readl(chip->base + SUN6I_ALRM_IRQ_STA);
+	spin_unlock_irqrestore(&chip->lock, flags);
+
 	wkalrm->enabled = !!(alrm_en & SUN6I_ALRM_EN_CNT_EN);
 	wkalrm->pending = !!(alrm_st & SUN6I_ALRM_EN_CNT_EN);
 	rtc_time_to_tm(chip->alarm, &wkalrm->time);
@@ -356,6 +370,7 @@ static int sun6i_rtc_probe(struct platfo
 	chip = devm_kzalloc(&pdev->dev, sizeof(*chip), GFP_KERNEL);
 	if (!chip)
 		return -ENOMEM;
+	spin_lock_init(&chip->lock);
 
 	platform_set_drvdata(pdev, chip);
 	chip->dev = &pdev->dev;
@@ -404,6 +419,10 @@ static int sun6i_rtc_probe(struct platfo
 	/* disable alarm wakeup */
 	writel(0, chip->base + SUN6I_ALARM_CONFIG);
 
+	/* switch to the external, more precise, oscillator */
+	writel(SUN6I_LOSC_CTRL_KEY | SUN6I_LOSC_CTRL_EXT_OSC,
+	       chip->base + SUN6I_LOSC_CTRL);
+
 	chip->rtc = rtc_device_register("rtc-sun6i", &pdev->dev,
 					&sun6i_rtc_ops, THIS_MODULE);
 	if (IS_ERR(chip->rtc)) {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/rtc/rtc-tegra.c linux-libre-4.4.107-gnu/drivers/rtc/rtc-tegra.c
--- linux-libre-4.4-gnu/drivers/rtc/rtc-tegra.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/rtc/rtc-tegra.c	2017-12-20 04:05:01.000000000 -0500
@@ -18,6 +18,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  */
 #include <linux/kernel.h>
+#include <linux/clk.h>
 #include <linux/init.h>
 #include <linux/module.h>
 #include <linux/slab.h>
@@ -59,6 +60,7 @@ struct tegra_rtc_info {
 	struct platform_device	*pdev;
 	struct rtc_device	*rtc_dev;
 	void __iomem		*rtc_base; /* NULL if not initialized. */
+	struct clk		*clk;
 	int			tegra_rtc_irq; /* alarm and periodic irq */
 	spinlock_t		tegra_rtc_lock;
 };
@@ -332,6 +334,14 @@ static int __init tegra_rtc_probe(struct
 	if (info->tegra_rtc_irq <= 0)
 		return -EBUSY;
 
+	info->clk = devm_clk_get(&pdev->dev, NULL);
+	if (IS_ERR(info->clk))
+		return PTR_ERR(info->clk);
+
+	ret = clk_prepare_enable(info->clk);
+	if (ret < 0)
+		return ret;
+
 	/* set context info. */
 	info->pdev = pdev;
 	spin_lock_init(&info->tegra_rtc_lock);
@@ -352,7 +362,7 @@ static int __init tegra_rtc_probe(struct
 		ret = PTR_ERR(info->rtc_dev);
 		dev_err(&pdev->dev, "Unable to register device (err=%d).\n",
 			ret);
-		return ret;
+		goto disable_clk;
 	}
 
 	ret = devm_request_irq(&pdev->dev, info->tegra_rtc_irq,
@@ -362,12 +372,25 @@ static int __init tegra_rtc_probe(struct
 		dev_err(&pdev->dev,
 			"Unable to request interrupt for device (err=%d).\n",
 			ret);
-		return ret;
+		goto disable_clk;
 	}
 
 	dev_notice(&pdev->dev, "Tegra internal Real Time Clock\n");
 
 	return 0;
+
+disable_clk:
+	clk_disable_unprepare(info->clk);
+	return ret;
+}
+
+static int tegra_rtc_remove(struct platform_device *pdev)
+{
+	struct tegra_rtc_info *info = platform_get_drvdata(pdev);
+
+	clk_disable_unprepare(info->clk);
+
+	return 0;
 }
 
 #ifdef CONFIG_PM_SLEEP
@@ -419,6 +442,7 @@ static void tegra_rtc_shutdown(struct pl
 
 MODULE_ALIAS("platform:tegra_rtc");
 static struct platform_driver tegra_rtc_driver = {
+	.remove		= tegra_rtc_remove,
 	.shutdown	= tegra_rtc_shutdown,
 	.driver		= {
 		.name	= "tegra_rtc",
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/rtc/rtc-vr41xx.c linux-libre-4.4.107-gnu/drivers/rtc/rtc-vr41xx.c
--- linux-libre-4.4-gnu/drivers/rtc/rtc-vr41xx.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/rtc/rtc-vr41xx.c	2017-12-20 04:05:01.000000000 -0500
@@ -272,12 +272,13 @@ static irqreturn_t rtclong1_interrupt(in
 }
 
 static const struct rtc_class_ops vr41xx_rtc_ops = {
-	.release	= vr41xx_rtc_release,
-	.ioctl		= vr41xx_rtc_ioctl,
-	.read_time	= vr41xx_rtc_read_time,
-	.set_time	= vr41xx_rtc_set_time,
-	.read_alarm	= vr41xx_rtc_read_alarm,
-	.set_alarm	= vr41xx_rtc_set_alarm,
+	.release		= vr41xx_rtc_release,
+	.ioctl			= vr41xx_rtc_ioctl,
+	.read_time		= vr41xx_rtc_read_time,
+	.set_time		= vr41xx_rtc_set_time,
+	.read_alarm		= vr41xx_rtc_read_alarm,
+	.set_alarm		= vr41xx_rtc_set_alarm,
+	.alarm_irq_enable	= vr41xx_rtc_alarm_irq_enable,
 };
 
 static int rtc_probe(struct platform_device *pdev)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/s390/block/dasd_alias.c linux-libre-4.4.107-gnu/drivers/s390/block/dasd_alias.c
--- linux-libre-4.4-gnu/drivers/s390/block/dasd_alias.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/s390/block/dasd_alias.c	2017-12-20 04:05:01.000000000 -0500
@@ -264,8 +264,10 @@ void dasd_alias_disconnect_device_from_l
 		spin_unlock_irqrestore(&lcu->lock, flags);
 		cancel_work_sync(&lcu->suc_data.worker);
 		spin_lock_irqsave(&lcu->lock, flags);
-		if (device == lcu->suc_data.device)
+		if (device == lcu->suc_data.device) {
+			dasd_put_device(device);
 			lcu->suc_data.device = NULL;
+		}
 	}
 	was_pending = 0;
 	if (device == lcu->ruac_data.device) {
@@ -273,8 +275,10 @@ void dasd_alias_disconnect_device_from_l
 		was_pending = 1;
 		cancel_delayed_work_sync(&lcu->ruac_data.dwork);
 		spin_lock_irqsave(&lcu->lock, flags);
-		if (device == lcu->ruac_data.device)
+		if (device == lcu->ruac_data.device) {
+			dasd_put_device(device);
 			lcu->ruac_data.device = NULL;
+		}
 	}
 	private->lcu = NULL;
 	spin_unlock_irqrestore(&lcu->lock, flags);
@@ -549,8 +553,10 @@ static void lcu_update_work(struct work_
 	if ((rc && (rc != -EOPNOTSUPP)) || (lcu->flags & NEED_UAC_UPDATE)) {
 		DBF_DEV_EVENT(DBF_WARNING, device, "could not update"
 			    " alias data in lcu (rc = %d), retry later", rc);
-		schedule_delayed_work(&lcu->ruac_data.dwork, 30*HZ);
+		if (!schedule_delayed_work(&lcu->ruac_data.dwork, 30*HZ))
+			dasd_put_device(device);
 	} else {
+		dasd_put_device(device);
 		lcu->ruac_data.device = NULL;
 		lcu->flags &= ~UPDATE_PENDING;
 	}
@@ -593,8 +599,10 @@ static int _schedule_lcu_update(struct a
 	 */
 	if (!usedev)
 		return -EINVAL;
+	dasd_get_device(usedev);
 	lcu->ruac_data.device = usedev;
-	schedule_delayed_work(&lcu->ruac_data.dwork, 0);
+	if (!schedule_delayed_work(&lcu->ruac_data.dwork, 0))
+		dasd_put_device(usedev);
 	return 0;
 }
 
@@ -723,7 +731,7 @@ static int reset_summary_unit_check(stru
 	ASCEBC((char *) &cqr->magic, 4);
 	ccw = cqr->cpaddr;
 	ccw->cmd_code = DASD_ECKD_CCW_RSCK;
-	ccw->flags = 0 ;
+	ccw->flags = CCW_FLAG_SLI;
 	ccw->count = 16;
 	ccw->cda = (__u32)(addr_t) cqr->data;
 	((char *)cqr->data)[0] = reason;
@@ -930,6 +938,7 @@ static void summary_unit_check_handling_
 	/* 3. read new alias configuration */
 	_schedule_lcu_update(lcu, device);
 	lcu->suc_data.device = NULL;
+	dasd_put_device(device);
 	spin_unlock_irqrestore(&lcu->lock, flags);
 }
 
@@ -989,6 +998,8 @@ void dasd_alias_handle_summary_unit_chec
 	}
 	lcu->suc_data.reason = reason;
 	lcu->suc_data.device = device;
+	dasd_get_device(device);
 	spin_unlock(&lcu->lock);
-	schedule_work(&lcu->suc_data.worker);
+	if (!schedule_work(&lcu->suc_data.worker))
+		dasd_put_device(device);
 };
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/s390/block/dasd.c linux-libre-4.4.107-gnu/drivers/s390/block/dasd.c
--- linux-libre-4.4-gnu/drivers/s390/block/dasd.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/s390/block/dasd.c	2017-12-20 04:05:01.000000000 -0500
@@ -1584,9 +1584,18 @@ void dasd_int_handler(struct ccw_device
 	unsigned long long now;
 	int expires;
 
+	cqr = (struct dasd_ccw_req *) intparm;
 	if (IS_ERR(irb)) {
 		switch (PTR_ERR(irb)) {
 		case -EIO:
+			if (cqr && cqr->status == DASD_CQR_CLEAR_PENDING) {
+				device = (struct dasd_device *) cqr->startdev;
+				cqr->status = DASD_CQR_CLEARED;
+				dasd_device_clear_timer(device);
+				wake_up(&dasd_flush_wq);
+				dasd_schedule_device_bh(device);
+				return;
+			}
 			break;
 		case -ETIMEDOUT:
 			DBF_EVENT_DEVID(DBF_WARNING, cdev, "%s: "
@@ -1602,7 +1611,6 @@ void dasd_int_handler(struct ccw_device
 	}
 
 	now = get_tod_clock();
-	cqr = (struct dasd_ccw_req *) intparm;
 	/* check for conditions that should be handled immediately */
 	if (!cqr ||
 	    !(scsw_dstat(&irb->scsw) == (DEV_STAT_CHN_END | DEV_STAT_DEV_END) &&
@@ -1627,8 +1635,11 @@ void dasd_int_handler(struct ccw_device
 	/* check for for attention message */
 	if (scsw_dstat(&irb->scsw) & DEV_STAT_ATTENTION) {
 		device = dasd_device_from_cdev_locked(cdev);
-		device->discipline->check_attention(device, irb->esw.esw1.lpum);
-		dasd_put_device(device);
+		if (!IS_ERR(device)) {
+			device->discipline->check_attention(device,
+							    irb->esw.esw1.lpum);
+			dasd_put_device(device);
+		}
 	}
 
 	if (!cqr)
@@ -3031,6 +3042,7 @@ static void dasd_setup_queue(struct dasd
 		max = block->base->discipline->max_blocks << block->s2b_shift;
 	}
 	queue_flag_set_unlocked(QUEUE_FLAG_NONROT, block->request_queue);
+	block->request_queue->limits.max_dev_sectors = max;
 	blk_queue_logical_block_size(block->request_queue,
 				     block->bp_block);
 	blk_queue_max_hw_sectors(block->request_queue, max);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/s390/block/dasd_diag.c linux-libre-4.4.107-gnu/drivers/s390/block/dasd_diag.c
--- linux-libre-4.4-gnu/drivers/s390/block/dasd_diag.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/s390/block/dasd_diag.c	2017-12-20 04:05:01.000000000 -0500
@@ -67,7 +67,7 @@ static const u8 DASD_DIAG_CMS1[] = { 0xc
  * and function code cmd.
  * In case of an exception return 3. Otherwise return result of bitwise OR of
  * resulting condition code and DIAG return code. */
-static inline int dia250(void *iob, int cmd)
+static inline int __dia250(void *iob, int cmd)
 {
 	register unsigned long reg2 asm ("2") = (unsigned long) iob;
 	typedef union {
@@ -77,7 +77,6 @@ static inline int dia250(void *iob, int
 	int rc;
 
 	rc = 3;
-	diag_stat_inc(DIAG_STAT_X250);
 	asm volatile(
 		"	diag	2,%2,0x250\n"
 		"0:	ipm	%0\n"
@@ -91,6 +90,12 @@ static inline int dia250(void *iob, int
 	return rc;
 }
 
+static inline int dia250(void *iob, int cmd)
+{
+	diag_stat_inc(DIAG_STAT_X250);
+	return __dia250(iob, cmd);
+}
+
 /* Initialize block I/O to DIAG device using the specified blocksize and
  * block offset. On success, return zero and set end_block to contain the
  * number of blocks on the device minus the specified offset. Return non-zero
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/s390/block/dcssblk.c linux-libre-4.4.107-gnu/drivers/s390/block/dcssblk.c
--- linux-libre-4.4-gnu/drivers/s390/block/dcssblk.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/s390/block/dcssblk.c	2017-12-20 04:05:01.000000000 -0500
@@ -892,7 +892,7 @@ dcssblk_direct_access (struct block_devi
 	dev_info = bdev->bd_disk->private_data;
 	if (!dev_info)
 		return -ENODEV;
-	dev_sz = dev_info->end - dev_info->start;
+	dev_sz = dev_info->end - dev_info->start + 1;
 	offset = secnum * 512;
 	addr = (void *) (dev_info->start + offset);
 	*pfn = virt_to_phys(addr) >> PAGE_SHIFT;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/s390/char/con3270.c linux-libre-4.4.107-gnu/drivers/s390/char/con3270.c
--- linux-libre-4.4-gnu/drivers/s390/char/con3270.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/s390/char/con3270.c	2017-12-20 04:05:01.000000000 -0500
@@ -124,7 +124,12 @@ con3270_create_status(struct con3270 *cp
 static void
 con3270_update_string(struct con3270 *cp, struct string *s, int nr)
 {
-	if (s->len >= cp->view.cols - 5)
+	if (s->len < 4) {
+		/* This indicates a bug, but printing a warning would
+		 * cause a deadlock. */
+		return;
+	}
+	if (s->string[s->len - 4] != TO_RA)
 		return;
 	raw3270_buffer_address(cp->view.dev, s->string + s->len - 3,
 			       cp->view.cols * (nr + 1));
@@ -461,11 +466,11 @@ con3270_cline_end(struct con3270 *cp)
 		cp->cline->len + 4 : cp->view.cols;
 	s = con3270_alloc_string(cp, size);
 	memcpy(s->string, cp->cline->string, cp->cline->len);
-	if (s->len < cp->view.cols - 5) {
+	if (cp->cline->len < cp->view.cols - 5) {
 		s->string[s->len - 4] = TO_RA;
 		s->string[s->len - 1] = 0;
 	} else {
-		while (--size > cp->cline->len)
+		while (--size >= cp->cline->len)
 			s->string[size] = cp->view.ascebc[' '];
 	}
 	/* Replace cline with allocated line s and reset cline. */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/s390/char/sclp_ctl.c linux-libre-4.4.107-gnu/drivers/s390/char/sclp_ctl.c
--- linux-libre-4.4-gnu/drivers/s390/char/sclp_ctl.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/s390/char/sclp_ctl.c	2017-12-20 04:05:01.000000000 -0500
@@ -56,6 +56,7 @@ static int sclp_ctl_ioctl_sccb(void __us
 {
 	struct sclp_ctl_sccb ctl_sccb;
 	struct sccb_header *sccb;
+	unsigned long copied;
 	int rc;
 
 	if (copy_from_user(&ctl_sccb, user_area, sizeof(ctl_sccb)))
@@ -65,14 +66,15 @@ static int sclp_ctl_ioctl_sccb(void __us
 	sccb = (void *) get_zeroed_page(GFP_KERNEL | GFP_DMA);
 	if (!sccb)
 		return -ENOMEM;
-	if (copy_from_user(sccb, u64_to_uptr(ctl_sccb.sccb), sizeof(*sccb))) {
+	copied = PAGE_SIZE -
+		copy_from_user(sccb, u64_to_uptr(ctl_sccb.sccb), PAGE_SIZE);
+	if (offsetof(struct sccb_header, length) +
+	    sizeof(sccb->length) > copied || sccb->length > copied) {
 		rc = -EFAULT;
 		goto out_free;
 	}
-	if (sccb->length > PAGE_SIZE || sccb->length < 8)
-		return -EINVAL;
-	if (copy_from_user(sccb, u64_to_uptr(ctl_sccb.sccb), sccb->length)) {
-		rc = -EFAULT;
+	if (sccb->length < 8) {
+		rc = -EINVAL;
 		goto out_free;
 	}
 	rc = sclp_sync_request(ctl_sccb.cmdw, sccb);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/s390/char/vmlogrdr.c linux-libre-4.4.107-gnu/drivers/s390/char/vmlogrdr.c
--- linux-libre-4.4-gnu/drivers/s390/char/vmlogrdr.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/s390/char/vmlogrdr.c	2017-12-20 04:05:01.000000000 -0500
@@ -872,7 +872,7 @@ static int __init vmlogrdr_init(void)
 		goto cleanup;
 
 	for (i=0; i < MAXMINOR; ++i ) {
-		sys_ser[i].buffer = (char *) get_zeroed_page(GFP_KERNEL);
+		sys_ser[i].buffer = (char *) get_zeroed_page(GFP_KERNEL | GFP_DMA);
 		if (!sys_ser[i].buffer) {
 			rc = -ENOMEM;
 			break;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/s390/cio/chp.c linux-libre-4.4.107-gnu/drivers/s390/cio/chp.c
--- linux-libre-4.4-gnu/drivers/s390/cio/chp.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/s390/cio/chp.c	2017-12-20 04:05:01.000000000 -0500
@@ -139,11 +139,11 @@ static ssize_t chp_measurement_chars_rea
 
 	device = container_of(kobj, struct device, kobj);
 	chp = to_channelpath(device);
-	if (!chp->cmg_chars)
+	if (chp->cmg == -1)
 		return 0;
 
-	return memory_read_from_buffer(buf, count, &off,
-				chp->cmg_chars, sizeof(struct cmg_chars));
+	return memory_read_from_buffer(buf, count, &off, &chp->cmg_chars,
+				       sizeof(chp->cmg_chars));
 }
 
 static struct bin_attribute chp_measurement_chars_attr = {
@@ -416,7 +416,8 @@ static void chp_release(struct device *d
  * chp_update_desc - update channel-path description
  * @chp - channel-path
  *
- * Update the channel-path description of the specified channel-path.
+ * Update the channel-path description of the specified channel-path
+ * including channel measurement related information.
  * Return zero on success, non-zero otherwise.
  */
 int chp_update_desc(struct channel_path *chp)
@@ -428,8 +429,10 @@ int chp_update_desc(struct channel_path
 		return rc;
 
 	rc = chsc_determine_fmt1_channel_path_desc(chp->chpid, &chp->desc_fmt1);
+	if (rc)
+		return rc;
 
-	return rc;
+	return chsc_get_channel_measurement_chars(chp);
 }
 
 /**
@@ -466,14 +469,6 @@ int chp_new(struct chp_id chpid)
 		ret = -ENODEV;
 		goto out_free;
 	}
-	/* Get channel-measurement characteristics. */
-	if (css_chsc_characteristics.scmc && css_chsc_characteristics.secm) {
-		ret = chsc_get_channel_measurement_chars(chp);
-		if (ret)
-			goto out_free;
-	} else {
-		chp->cmg = -1;
-	}
 	dev_set_name(&chp->dev, "chp%x.%02x", chpid.cssid, chpid.id);
 
 	/* make it known to the system */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/s390/cio/chp.h linux-libre-4.4.107-gnu/drivers/s390/cio/chp.h
--- linux-libre-4.4-gnu/drivers/s390/cio/chp.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/s390/cio/chp.h	2017-12-20 04:05:01.000000000 -0500
@@ -48,7 +48,7 @@ struct channel_path {
 	/* Channel-measurement related stuff: */
 	int cmg;
 	int shared;
-	void *cmg_chars;
+	struct cmg_chars cmg_chars;
 };
 
 /* Return channel_path struct for given chpid. */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/s390/cio/chsc.c linux-libre-4.4.107-gnu/drivers/s390/cio/chsc.c
--- linux-libre-4.4-gnu/drivers/s390/cio/chsc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/s390/cio/chsc.c	2017-12-20 04:05:01.000000000 -0500
@@ -14,6 +14,7 @@
 #include <linux/slab.h>
 #include <linux/init.h>
 #include <linux/device.h>
+#include <linux/mutex.h>
 #include <linux/pci.h>
 
 #include <asm/cio.h>
@@ -94,12 +95,13 @@ struct chsc_ssd_area {
 int chsc_get_ssd_info(struct subchannel_id schid, struct chsc_ssd_info *ssd)
 {
 	struct chsc_ssd_area *ssd_area;
+	unsigned long flags;
 	int ccode;
 	int ret;
 	int i;
 	int mask;
 
-	spin_lock_irq(&chsc_page_lock);
+	spin_lock_irqsave(&chsc_page_lock, flags);
 	memset(chsc_page, 0, PAGE_SIZE);
 	ssd_area = chsc_page;
 	ssd_area->request.length = 0x0010;
@@ -143,7 +145,7 @@ int chsc_get_ssd_info(struct subchannel_
 			ssd->fla[i] = ssd_area->fla[i];
 	}
 out:
-	spin_unlock_irq(&chsc_page_lock);
+	spin_unlock_irqrestore(&chsc_page_lock, flags);
 	return ret;
 }
 
@@ -224,8 +226,9 @@ out_unreg:
 
 void chsc_chp_offline(struct chp_id chpid)
 {
-	char dbf_txt[15];
+	struct channel_path *chp = chpid_to_chp(chpid);
 	struct chp_link link;
+	char dbf_txt[15];
 
 	sprintf(dbf_txt, "chpr%x.%02x", chpid.cssid, chpid.id);
 	CIO_TRACE_EVENT(2, dbf_txt);
@@ -236,6 +239,11 @@ void chsc_chp_offline(struct chp_id chpi
 	link.chpid = chpid;
 	/* Wait until previous actions have settled. */
 	css_wait_for_slow_path();
+
+	mutex_lock(&chp->lock);
+	chp_update_desc(chp);
+	mutex_unlock(&chp->lock);
+
 	for_each_subchannel_staged(s390_subchannel_remove_chpid, NULL, &link);
 }
 
@@ -690,8 +698,9 @@ static void chsc_process_crw(struct crw
 
 void chsc_chp_online(struct chp_id chpid)
 {
-	char dbf_txt[15];
+	struct channel_path *chp = chpid_to_chp(chpid);
 	struct chp_link link;
+	char dbf_txt[15];
 
 	sprintf(dbf_txt, "cadd%x.%02x", chpid.cssid, chpid.id);
 	CIO_TRACE_EVENT(2, dbf_txt);
@@ -701,6 +710,11 @@ void chsc_chp_online(struct chp_id chpid
 		link.chpid = chpid;
 		/* Wait until previous actions have settled. */
 		css_wait_for_slow_path();
+
+		mutex_lock(&chp->lock);
+		chp_update_desc(chp);
+		mutex_unlock(&chp->lock);
+
 		for_each_subchannel_staged(__s390_process_res_acc, NULL,
 					   &link);
 		css_schedule_reprobe();
@@ -819,9 +833,10 @@ int __chsc_do_secm(struct channel_subsys
 		u32 fmt : 4;
 		u32 : 16;
 	} __attribute__ ((packed)) *secm_area;
+	unsigned long flags;
 	int ret, ccode;
 
-	spin_lock_irq(&chsc_page_lock);
+	spin_lock_irqsave(&chsc_page_lock, flags);
 	memset(chsc_page, 0, PAGE_SIZE);
 	secm_area = chsc_page;
 	secm_area->request.length = 0x0050;
@@ -851,7 +866,7 @@ int __chsc_do_secm(struct channel_subsys
 		CIO_CRW_EVENT(2, "chsc: secm failed (rc=%04x)\n",
 			      secm_area->response.code);
 out:
-	spin_unlock_irq(&chsc_page_lock);
+	spin_unlock_irqrestore(&chsc_page_lock, flags);
 	return ret;
 }
 
@@ -967,22 +982,20 @@ static void
 chsc_initialize_cmg_chars(struct channel_path *chp, u8 cmcv,
 			  struct cmg_chars *chars)
 {
-	struct cmg_chars *cmg_chars;
 	int i, mask;
 
-	cmg_chars = chp->cmg_chars;
 	for (i = 0; i < NR_MEASUREMENT_CHARS; i++) {
 		mask = 0x80 >> (i + 3);
 		if (cmcv & mask)
-			cmg_chars->values[i] = chars->values[i];
+			chp->cmg_chars.values[i] = chars->values[i];
 		else
-			cmg_chars->values[i] = 0;
+			chp->cmg_chars.values[i] = 0;
 	}
 }
 
 int chsc_get_channel_measurement_chars(struct channel_path *chp)
 {
-	struct cmg_chars *cmg_chars;
+	unsigned long flags;
 	int ccode, ret;
 
 	struct {
@@ -1006,12 +1019,13 @@ int chsc_get_channel_measurement_chars(s
 		u32 data[NR_MEASUREMENT_CHARS];
 	} __attribute__ ((packed)) *scmc_area;
 
-	chp->cmg_chars = NULL;
-	cmg_chars = kmalloc(sizeof(*cmg_chars), GFP_KERNEL);
-	if (!cmg_chars)
-		return -ENOMEM;
+	chp->shared = -1;
+	chp->cmg = -1;
 
-	spin_lock_irq(&chsc_page_lock);
+	if (!css_chsc_characteristics.scmc || !css_chsc_characteristics.secm)
+		return 0;
+
+	spin_lock_irqsave(&chsc_page_lock, flags);
 	memset(chsc_page, 0, PAGE_SIZE);
 	scmc_area = chsc_page;
 	scmc_area->request.length = 0x0010;
@@ -1031,25 +1045,19 @@ int chsc_get_channel_measurement_chars(s
 			      scmc_area->response.code);
 		goto out;
 	}
-	if (scmc_area->not_valid) {
-		chp->cmg = -1;
-		chp->shared = -1;
+	if (scmc_area->not_valid)
 		goto out;
-	}
+
 	chp->cmg = scmc_area->cmg;
 	chp->shared = scmc_area->shared;
 	if (chp->cmg != 2 && chp->cmg != 3) {
 		/* No cmg-dependent data. */
 		goto out;
 	}
-	chp->cmg_chars = cmg_chars;
 	chsc_initialize_cmg_chars(chp, scmc_area->cmcv,
 				  (struct cmg_chars *) &scmc_area->data);
 out:
-	spin_unlock_irq(&chsc_page_lock);
-	if (!chp->cmg_chars)
-		kfree(cmg_chars);
-
+	spin_unlock_irqrestore(&chsc_page_lock, flags);
 	return ret;
 }
 
@@ -1130,6 +1138,7 @@ struct css_chsc_char css_chsc_characteri
 int __init
 chsc_determine_css_characteristics(void)
 {
+	unsigned long flags;
 	int result;
 	struct {
 		struct chsc_header request;
@@ -1142,7 +1151,7 @@ chsc_determine_css_characteristics(void)
 		u32 chsc_char[508];
 	} __attribute__ ((packed)) *scsc_area;
 
-	spin_lock_irq(&chsc_page_lock);
+	spin_lock_irqsave(&chsc_page_lock, flags);
 	memset(chsc_page, 0, PAGE_SIZE);
 	scsc_area = chsc_page;
 	scsc_area->request.length = 0x0010;
@@ -1164,7 +1173,7 @@ chsc_determine_css_characteristics(void)
 		CIO_CRW_EVENT(2, "chsc: scsc failed (rc=%04x)\n",
 			      scsc_area->response.code);
 exit:
-	spin_unlock_irq(&chsc_page_lock);
+	spin_unlock_irqrestore(&chsc_page_lock, flags);
 	return result;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/s390/cio/cmf.c linux-libre-4.4.107-gnu/drivers/s390/cio/cmf.c
--- linux-libre-4.4-gnu/drivers/s390/cio/cmf.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/s390/cio/cmf.c	2017-12-20 04:05:01.000000000 -0500
@@ -753,6 +753,17 @@ static void reset_cmb(struct ccw_device
 	cmf_generic_reset(cdev);
 }
 
+static int cmf_enabled(struct ccw_device *cdev)
+{
+	int enabled;
+
+	spin_lock_irq(cdev->ccwlock);
+	enabled = !!cdev->private->cmb;
+	spin_unlock_irq(cdev->ccwlock);
+
+	return enabled;
+}
+
 static struct attribute_group cmf_attr_group;
 
 static struct cmb_operations cmbops_basic = {
@@ -1153,13 +1164,8 @@ static ssize_t cmb_enable_show(struct de
 			       char *buf)
 {
 	struct ccw_device *cdev = to_ccwdev(dev);
-	int enabled;
 
-	spin_lock_irq(cdev->ccwlock);
-	enabled = !!cdev->private->cmb;
-	spin_unlock_irq(cdev->ccwlock);
-
-	return sprintf(buf, "%d\n", enabled);
+	return sprintf(buf, "%d\n", cmf_enabled(cdev));
 }
 
 static ssize_t cmb_enable_store(struct device *dev,
@@ -1199,15 +1205,20 @@ int ccw_set_cmf(struct ccw_device *cdev,
  *  @cdev:	The ccw device to be enabled
  *
  *  Returns %0 for success or a negative error value.
- *
+ *  Note: If this is called on a device for which channel measurement is already
+ *	  enabled a reset of the measurement data is triggered.
  *  Context:
  *    non-atomic
  */
 int enable_cmf(struct ccw_device *cdev)
 {
-	int ret;
+	int ret = 0;
 
 	device_lock(&cdev->dev);
+	if (cmf_enabled(cdev)) {
+		cmbops->reset(cdev);
+		goto out_unlock;
+	}
 	get_device(&cdev->dev);
 	ret = cmbops->alloc(cdev);
 	if (ret)
@@ -1226,7 +1237,7 @@ int enable_cmf(struct ccw_device *cdev)
 out:
 	if (ret)
 		put_device(&cdev->dev);
-
+out_unlock:
 	device_unlock(&cdev->dev);
 	return ret;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/s390/cio/qdio_thinint.c linux-libre-4.4.107-gnu/drivers/s390/cio/qdio_thinint.c
--- linux-libre-4.4-gnu/drivers/s390/cio/qdio_thinint.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/s390/cio/qdio_thinint.c	2017-12-20 04:05:01.000000000 -0500
@@ -147,11 +147,11 @@ static inline void tiqdio_call_inq_handl
 	struct qdio_q *q;
 	int i;
 
-	for_each_input_queue(irq, q, i) {
-		if (!references_shared_dsci(irq) &&
-		    has_multiple_inq_on_dsci(irq))
-			xchg(q->irq_ptr->dsci, 0);
+	if (!references_shared_dsci(irq) &&
+	    has_multiple_inq_on_dsci(irq))
+		xchg(irq->dsci, 0);
 
+	for_each_input_queue(irq, q, i) {
 		if (q->u.in.queue_start_poll) {
 			/* skip if polling is enabled or already in work */
 			if (test_and_set_bit(QDIO_QUEUE_IRQS_DISABLED,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/s390/crypto/ap_bus.c linux-libre-4.4.107-gnu/drivers/s390/crypto/ap_bus.c
--- linux-libre-4.4-gnu/drivers/s390/crypto/ap_bus.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/s390/crypto/ap_bus.c	2017-12-20 04:05:01.000000000 -0500
@@ -1651,6 +1651,9 @@ static void ap_scan_bus(struct work_stru
 		ap_dev->queue_depth = queue_depth;
 		ap_dev->raw_hwtype = device_type;
 		ap_dev->device_type = device_type;
+		/* CEX6 toleration: map to CEX5 */
+		if (device_type == AP_DEVICE_TYPE_CEX6)
+			ap_dev->device_type = AP_DEVICE_TYPE_CEX5;
 		ap_dev->functions = device_functions;
 		spin_lock_init(&ap_dev->lock);
 		INIT_LIST_HEAD(&ap_dev->pendingq);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/s390/crypto/ap_bus.h linux-libre-4.4.107-gnu/drivers/s390/crypto/ap_bus.h
--- linux-libre-4.4-gnu/drivers/s390/crypto/ap_bus.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/s390/crypto/ap_bus.h	2017-12-20 04:05:01.000000000 -0500
@@ -105,6 +105,7 @@ static inline int ap_test_bit(unsigned i
 #define AP_DEVICE_TYPE_CEX3C	9
 #define AP_DEVICE_TYPE_CEX4	10
 #define AP_DEVICE_TYPE_CEX5	11
+#define AP_DEVICE_TYPE_CEX6	12
 
 /*
  * Known function facilities
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/s390/net/qeth_core.h linux-libre-4.4.107-gnu/drivers/s390/net/qeth_core.h
--- linux-libre-4.4-gnu/drivers/s390/net/qeth_core.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/s390/net/qeth_core.h	2017-12-20 04:05:01.000000000 -0500
@@ -717,6 +717,7 @@ enum qeth_discipline_id {
 };
 
 struct qeth_discipline {
+	const struct device_type *devtype;
 	void (*start_poll)(struct ccw_device *, int, unsigned long);
 	qdio_handler_t *input_handler;
 	qdio_handler_t *output_handler;
@@ -881,6 +882,9 @@ extern struct qeth_discipline qeth_l2_di
 extern struct qeth_discipline qeth_l3_discipline;
 extern const struct attribute_group *qeth_generic_attr_groups[];
 extern const struct attribute_group *qeth_osn_attr_groups[];
+extern const struct attribute_group qeth_device_attr_group;
+extern const struct attribute_group qeth_device_blkt_group;
+extern const struct device_type qeth_generic_devtype;
 extern struct workqueue_struct *qeth_wq;
 
 int qeth_card_hw_is_reachable(struct qeth_card *);
@@ -905,7 +909,6 @@ void qeth_clear_thread_running_bit(struc
 int qeth_core_hardsetup_card(struct qeth_card *);
 void qeth_print_status_message(struct qeth_card *);
 int qeth_init_qdio_queues(struct qeth_card *);
-int qeth_send_startlan(struct qeth_card *);
 int qeth_send_ipa_cmd(struct qeth_card *, struct qeth_cmd_buffer *,
 		  int (*reply_cb)
 		  (struct qeth_card *, struct qeth_reply *, unsigned long),
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/s390/net/qeth_core_main.c linux-libre-4.4.107-gnu/drivers/s390/net/qeth_core_main.c
--- linux-libre-4.4-gnu/drivers/s390/net/qeth_core_main.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/s390/net/qeth_core_main.c	2017-12-20 04:05:01.000000000 -0500
@@ -2955,7 +2955,7 @@ int qeth_send_ipa_cmd(struct qeth_card *
 }
 EXPORT_SYMBOL_GPL(qeth_send_ipa_cmd);
 
-int qeth_send_startlan(struct qeth_card *card)
+static int qeth_send_startlan(struct qeth_card *card)
 {
 	int rc;
 	struct qeth_cmd_buffer *iob;
@@ -2968,7 +2968,6 @@ int qeth_send_startlan(struct qeth_card
 	rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
 	return rc;
 }
-EXPORT_SYMBOL_GPL(qeth_send_startlan);
 
 static int qeth_default_setadapterparms_cb(struct qeth_card *card,
 		struct qeth_reply *reply, unsigned long data)
@@ -5080,6 +5079,20 @@ retriable:
 		goto out;
 	}
 
+	rc = qeth_send_startlan(card);
+	if (rc) {
+		QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
+		if (rc == IPA_RC_LAN_OFFLINE) {
+			dev_warn(&card->gdev->dev,
+				"The LAN is offline\n");
+			card->lan_online = 0;
+		} else {
+			rc = -ENODEV;
+			goto out;
+		}
+	} else
+		card->lan_online = 1;
+
 	card->options.ipa4.supported_funcs = 0;
 	card->options.ipa6.supported_funcs = 0;
 	card->options.adp.supported_funcs = 0;
@@ -5091,14 +5104,14 @@ retriable:
 	if (qeth_is_supported(card, IPA_SETADAPTERPARMS)) {
 		rc = qeth_query_setadapterparms(card);
 		if (rc < 0) {
-			QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
+			QETH_DBF_TEXT_(SETUP, 2, "7err%d", rc);
 			goto out;
 		}
 	}
 	if (qeth_adp_supported(card, IPA_SETADP_SET_DIAG_ASSIST)) {
 		rc = qeth_query_setdiagass(card);
 		if (rc < 0) {
-			QETH_DBF_TEXT_(SETUP, 2, "7err%d", rc);
+			QETH_DBF_TEXT_(SETUP, 2, "8err%d", rc);
 			goto out;
 		}
 	}
@@ -5449,10 +5462,12 @@ void qeth_core_free_discipline(struct qe
 	card->discipline = NULL;
 }
 
-static const struct device_type qeth_generic_devtype = {
+const struct device_type qeth_generic_devtype = {
 	.name = "qeth_generic",
 	.groups = qeth_generic_attr_groups,
 };
+EXPORT_SYMBOL_GPL(qeth_generic_devtype);
+
 static const struct device_type qeth_osn_devtype = {
 	.name = "qeth_osn",
 	.groups = qeth_osn_attr_groups,
@@ -5578,23 +5593,22 @@ static int qeth_core_probe_device(struct
 		goto err_card;
 	}
 
-	if (card->info.type == QETH_CARD_TYPE_OSN)
-		gdev->dev.type = &qeth_osn_devtype;
-	else
-		gdev->dev.type = &qeth_generic_devtype;
-
 	switch (card->info.type) {
 	case QETH_CARD_TYPE_OSN:
 	case QETH_CARD_TYPE_OSM:
 		rc = qeth_core_load_discipline(card, QETH_DISCIPLINE_LAYER2);
 		if (rc)
 			goto err_card;
+
+		gdev->dev.type = (card->info.type != QETH_CARD_TYPE_OSN)
+					? card->discipline->devtype
+					: &qeth_osn_devtype;
 		rc = card->discipline->setup(card->gdev);
 		if (rc)
 			goto err_disc;
-	case QETH_CARD_TYPE_OSD:
-	case QETH_CARD_TYPE_OSX:
+		break;
 	default:
+		gdev->dev.type = &qeth_generic_devtype;
 		break;
 	}
 
@@ -5650,8 +5664,10 @@ static int qeth_core_set_online(struct c
 		if (rc)
 			goto err;
 		rc = card->discipline->setup(card->gdev);
-		if (rc)
+		if (rc) {
+			qeth_core_free_discipline(card);
 			goto err;
+		}
 	}
 	rc = card->discipline->set_online(gdev);
 err:
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/s390/net/qeth_core_sys.c linux-libre-4.4.107-gnu/drivers/s390/net/qeth_core_sys.c
--- linux-libre-4.4-gnu/drivers/s390/net/qeth_core_sys.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/s390/net/qeth_core_sys.c	2017-12-20 04:05:01.000000000 -0500
@@ -409,12 +409,16 @@ static ssize_t qeth_dev_layer2_store(str
 
 	if (card->options.layer2 == newdis)
 		goto out;
-	else {
-		card->info.mac_bits  = 0;
-		if (card->discipline) {
-			card->discipline->remove(card->gdev);
-			qeth_core_free_discipline(card);
-		}
+	if (card->info.type == QETH_CARD_TYPE_OSM) {
+		/* fixed layer, can't switch */
+		rc = -EOPNOTSUPP;
+		goto out;
+	}
+
+	card->info.mac_bits = 0;
+	if (card->discipline) {
+		card->discipline->remove(card->gdev);
+		qeth_core_free_discipline(card);
 	}
 
 	rc = qeth_core_load_discipline(card, newdis);
@@ -422,6 +426,8 @@ static ssize_t qeth_dev_layer2_store(str
 		goto out;
 
 	rc = card->discipline->setup(card->gdev);
+	if (rc)
+		qeth_core_free_discipline(card);
 out:
 	mutex_unlock(&card->discipline_mutex);
 	return rc ? rc : count;
@@ -699,10 +705,11 @@ static struct attribute *qeth_blkt_devic
 	&dev_attr_inter_jumbo.attr,
 	NULL,
 };
-static struct attribute_group qeth_device_blkt_group = {
+const struct attribute_group qeth_device_blkt_group = {
 	.name = "blkt",
 	.attrs = qeth_blkt_device_attrs,
 };
+EXPORT_SYMBOL_GPL(qeth_device_blkt_group);
 
 static struct attribute *qeth_device_attrs[] = {
 	&dev_attr_state.attr,
@@ -722,9 +729,10 @@ static struct attribute *qeth_device_att
 	&dev_attr_switch_attrs.attr,
 	NULL,
 };
-static struct attribute_group qeth_device_attr_group = {
+const struct attribute_group qeth_device_attr_group = {
 	.attrs = qeth_device_attrs,
 };
+EXPORT_SYMBOL_GPL(qeth_device_attr_group);
 
 const struct attribute_group *qeth_generic_attr_groups[] = {
 	&qeth_device_attr_group,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/s390/net/qeth_l2.h linux-libre-4.4.107-gnu/drivers/s390/net/qeth_l2.h
--- linux-libre-4.4-gnu/drivers/s390/net/qeth_l2.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/s390/net/qeth_l2.h	2017-12-20 04:05:01.000000000 -0500
@@ -8,6 +8,8 @@
 
 #include "qeth_core.h"
 
+extern const struct attribute_group *qeth_l2_attr_groups[];
+
 int qeth_l2_create_device_attributes(struct device *);
 void qeth_l2_remove_device_attributes(struct device *);
 void qeth_l2_setup_bridgeport_attrs(struct qeth_card *card);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/s390/net/qeth_l2_main.c linux-libre-4.4.107-gnu/drivers/s390/net/qeth_l2_main.c
--- linux-libre-4.4-gnu/drivers/s390/net/qeth_l2_main.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/s390/net/qeth_l2_main.c	2017-12-20 04:05:01.000000000 -0500
@@ -1027,11 +1027,21 @@ static int qeth_l2_stop(struct net_devic
 	return 0;
 }
 
+static const struct device_type qeth_l2_devtype = {
+	.name = "qeth_layer2",
+	.groups = qeth_l2_attr_groups,
+};
+
 static int qeth_l2_probe_device(struct ccwgroup_device *gdev)
 {
 	struct qeth_card *card = dev_get_drvdata(&gdev->dev);
+	int rc;
 
-	qeth_l2_create_device_attributes(&gdev->dev);
+	if (gdev->dev.type == &qeth_generic_devtype) {
+		rc = qeth_l2_create_device_attributes(&gdev->dev);
+		if (rc)
+			return rc;
+	}
 	INIT_LIST_HEAD(&card->vid_list);
 	hash_init(card->mac_htable);
 	card->options.layer2 = 1;
@@ -1043,7 +1053,8 @@ static void qeth_l2_remove_device(struct
 {
 	struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
 
-	qeth_l2_remove_device_attributes(&cgdev->dev);
+	if (cgdev->dev.type == &qeth_generic_devtype)
+		qeth_l2_remove_device_attributes(&cgdev->dev);
 	qeth_set_allowed_threads(card, 0, 1);
 	wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
 
@@ -1051,6 +1062,7 @@ static void qeth_l2_remove_device(struct
 		qeth_l2_set_offline(cgdev);
 
 	if (card->dev) {
+		netif_napi_del(&card->napi);
 		unregister_netdev(card->dev);
 		card->dev = NULL;
 	}
@@ -1100,7 +1112,6 @@ static int qeth_l2_setup_netdev(struct q
 	case QETH_CARD_TYPE_OSN:
 		card->dev = alloc_netdev(0, "osn%d", NET_NAME_UNKNOWN,
 					 ether_setup);
-		card->dev->flags |= IFF_NOARP;
 		break;
 	default:
 		card->dev = alloc_etherdev(0);
@@ -1113,9 +1124,12 @@ static int qeth_l2_setup_netdev(struct q
 	card->dev->watchdog_timeo = QETH_TX_TIMEOUT;
 	card->dev->mtu = card->info.initial_mtu;
 	card->dev->netdev_ops = &qeth_l2_netdev_ops;
-	card->dev->ethtool_ops =
-		(card->info.type != QETH_CARD_TYPE_OSN) ?
-		&qeth_l2_ethtool_ops : &qeth_l2_osn_ops;
+	if (card->info.type == QETH_CARD_TYPE_OSN) {
+		card->dev->ethtool_ops = &qeth_l2_osn_ops;
+		card->dev->flags |= IFF_NOARP;
+	} else {
+		card->dev->ethtool_ops = &qeth_l2_ethtool_ops;
+	}
 	card->dev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
 	if (card->info.type == QETH_CARD_TYPE_OSD && !card->info.guestlan) {
 		card->dev->hw_features = NETIF_F_IP_CSUM | NETIF_F_RXCSUM;
@@ -1126,6 +1140,7 @@ static int qeth_l2_setup_netdev(struct q
 	qeth_l2_request_initial_mac(card);
 	SET_NETDEV_DEV(card->dev, &card->gdev->dev);
 	netif_napi_add(card->dev, &card->napi, qeth_l2_poll, QETH_NAPI_WEIGHT);
+	netif_carrier_off(card->dev);
 	return register_netdev(card->dev);
 }
 
@@ -1188,21 +1203,6 @@ static int __qeth_l2_set_online(struct c
 	/* softsetup */
 	QETH_DBF_TEXT(SETUP, 2, "softsetp");
 
-	rc = qeth_send_startlan(card);
-	if (rc) {
-		QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
-		if (rc == 0xe080) {
-			dev_warn(&card->gdev->dev,
-				"The LAN is offline\n");
-			card->lan_online = 0;
-			goto contin;
-		}
-		rc = -ENODEV;
-		goto out_remove;
-	} else
-		card->lan_online = 1;
-
-contin:
 	if ((card->info.type == QETH_CARD_TYPE_OSD) ||
 	    (card->info.type == QETH_CARD_TYPE_OSX)) {
 		if (qeth_l2_start_ipassists(card))
@@ -1427,6 +1427,7 @@ static int qeth_l2_control_event(struct
 }
 
 struct qeth_discipline qeth_l2_discipline = {
+	.devtype = &qeth_l2_devtype,
 	.start_poll = qeth_qdio_start_poll,
 	.input_handler = (qdio_handler_t *) qeth_qdio_input_handler,
 	.output_handler = (qdio_handler_t *) qeth_qdio_output_handler,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/s390/net/qeth_l2_sys.c linux-libre-4.4.107-gnu/drivers/s390/net/qeth_l2_sys.c
--- linux-libre-4.4-gnu/drivers/s390/net/qeth_l2_sys.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/s390/net/qeth_l2_sys.c	2017-12-20 04:05:01.000000000 -0500
@@ -272,3 +272,11 @@ void qeth_l2_setup_bridgeport_attrs(stru
 	} else
 		qeth_bridgeport_an_set(card, 0);
 }
+
+const struct attribute_group *qeth_l2_attr_groups[] = {
+	&qeth_device_attr_group,
+	&qeth_device_blkt_group,
+	/* l2 specific, see l2_{create,remove}_device_attributes(): */
+	&qeth_l2_bridgeport_attr_group,
+	NULL,
+};
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/s390/net/qeth_l3_main.c linux-libre-4.4.107-gnu/drivers/s390/net/qeth_l3_main.c
--- linux-libre-4.4-gnu/drivers/s390/net/qeth_l3_main.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/s390/net/qeth_l3_main.c	2017-12-20 04:05:01.000000000 -0500
@@ -3220,14 +3220,18 @@ static int qeth_l3_setup_netdev(struct q
 
 	SET_NETDEV_DEV(card->dev, &card->gdev->dev);
 	netif_napi_add(card->dev, &card->napi, qeth_l3_poll, QETH_NAPI_WEIGHT);
+	netif_carrier_off(card->dev);
 	return register_netdev(card->dev);
 }
 
 static int qeth_l3_probe_device(struct ccwgroup_device *gdev)
 {
 	struct qeth_card *card = dev_get_drvdata(&gdev->dev);
+	int rc;
 
-	qeth_l3_create_device_attributes(&gdev->dev);
+	rc = qeth_l3_create_device_attributes(&gdev->dev);
+	if (rc)
+		return rc;
 	card->options.layer2 = 0;
 	card->info.hwtrap = 0;
 	return 0;
@@ -3246,6 +3250,7 @@ static void qeth_l3_remove_device(struct
 		qeth_l3_set_offline(cgdev);
 
 	if (card->dev) {
+		netif_napi_del(&card->napi);
 		unregister_netdev(card->dev);
 		card->dev = NULL;
 	}
@@ -3293,21 +3298,6 @@ static int __qeth_l3_set_online(struct c
 	/* softsetup */
 	QETH_DBF_TEXT(SETUP, 2, "softsetp");
 
-	rc = qeth_send_startlan(card);
-	if (rc) {
-		QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
-		if (rc == 0xe080) {
-			dev_warn(&card->gdev->dev,
-				"The LAN is offline\n");
-			card->lan_online = 0;
-			goto contin;
-		}
-		rc = -ENODEV;
-		goto out_remove;
-	} else
-		card->lan_online = 1;
-
-contin:
 	rc = qeth_l3_setadapter_parms(card);
 	if (rc)
 		QETH_DBF_TEXT_(SETUP, 2, "2err%04x", rc);
@@ -3517,6 +3507,7 @@ static int qeth_l3_control_event(struct
 }
 
 struct qeth_discipline qeth_l3_discipline = {
+	.devtype = &qeth_generic_devtype,
 	.start_poll = qeth_qdio_start_poll,
 	.input_handler = (qdio_handler_t *) qeth_qdio_input_handler,
 	.output_handler = (qdio_handler_t *) qeth_qdio_output_handler,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/s390/scsi/zfcp_aux.c linux-libre-4.4.107-gnu/drivers/s390/scsi/zfcp_aux.c
--- linux-libre-4.4-gnu/drivers/s390/scsi/zfcp_aux.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/s390/scsi/zfcp_aux.c	2017-12-20 04:05:01.000000000 -0500
@@ -358,6 +358,8 @@ struct zfcp_adapter *zfcp_adapter_enqueu
 
 	adapter->next_port_scan = jiffies;
 
+	adapter->erp_action.adapter = adapter;
+
 	if (zfcp_qdio_setup(adapter))
 		goto failed;
 
@@ -514,6 +516,9 @@ struct zfcp_port *zfcp_port_enqueue(stru
 	port->dev.groups = zfcp_port_attr_groups;
 	port->dev.release = zfcp_port_release;
 
+	port->erp_action.adapter = adapter;
+	port->erp_action.port = port;
+
 	if (dev_set_name(&port->dev, "0x%016llx", (unsigned long long)wwpn)) {
 		kfree(port);
 		goto err_out;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/s390/scsi/zfcp_dbf.c linux-libre-4.4.107-gnu/drivers/s390/scsi/zfcp_dbf.c
--- linux-libre-4.4-gnu/drivers/s390/scsi/zfcp_dbf.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/s390/scsi/zfcp_dbf.c	2017-12-20 04:05:01.000000000 -0500
@@ -3,7 +3,7 @@
  *
  * Debug traces for zfcp.
  *
- * Copyright IBM Corp. 2002, 2013
+ * Copyright IBM Corp. 2002, 2017
  */
 
 #define KMSG_COMPONENT "zfcp"
@@ -65,7 +65,7 @@ void zfcp_dbf_pl_write(struct zfcp_dbf *
  * @tag: tag indicating which kind of unsolicited status has been received
  * @req: request for which a response was received
  */
-void zfcp_dbf_hba_fsf_res(char *tag, struct zfcp_fsf_req *req)
+void zfcp_dbf_hba_fsf_res(char *tag, int level, struct zfcp_fsf_req *req)
 {
 	struct zfcp_dbf *dbf = req->adapter->dbf;
 	struct fsf_qtcb_prefix *q_pref = &req->qtcb->prefix;
@@ -85,6 +85,8 @@ void zfcp_dbf_hba_fsf_res(char *tag, str
 	rec->u.res.req_issued = req->issued;
 	rec->u.res.prot_status = q_pref->prot_status;
 	rec->u.res.fsf_status = q_head->fsf_status;
+	rec->u.res.port_handle = q_head->port_handle;
+	rec->u.res.lun_handle = q_head->lun_handle;
 
 	memcpy(rec->u.res.prot_status_qual, &q_pref->prot_status_qual,
 	       FSF_PROT_STATUS_QUAL_SIZE);
@@ -97,7 +99,7 @@ void zfcp_dbf_hba_fsf_res(char *tag, str
 				  rec->pl_len, "fsf_res", req->req_id);
 	}
 
-	debug_event(dbf->hba, 1, rec, sizeof(*rec));
+	debug_event(dbf->hba, level, rec, sizeof(*rec));
 	spin_unlock_irqrestore(&dbf->hba_lock, flags);
 }
 
@@ -241,7 +243,8 @@ static void zfcp_dbf_set_common(struct z
 	if (sdev) {
 		rec->lun_status = atomic_read(&sdev_to_zfcp(sdev)->status);
 		rec->lun = zfcp_scsi_dev_lun(sdev);
-	}
+	} else
+		rec->lun = ZFCP_DBF_INVALID_LUN;
 }
 
 /**
@@ -286,11 +289,12 @@ void zfcp_dbf_rec_trig(char *tag, struct
 
 
 /**
- * zfcp_dbf_rec_run - trace event related to running recovery
+ * zfcp_dbf_rec_run_lvl - trace event related to running recovery
+ * @level: trace level to be used for event
  * @tag: identifier for event
  * @erp: erp_action running
  */
-void zfcp_dbf_rec_run(char *tag, struct zfcp_erp_action *erp)
+void zfcp_dbf_rec_run_lvl(int level, char *tag, struct zfcp_erp_action *erp)
 {
 	struct zfcp_dbf *dbf = erp->adapter->dbf;
 	struct zfcp_dbf_rec *rec = &dbf->rec_buf;
@@ -316,17 +320,62 @@ void zfcp_dbf_rec_run(char *tag, struct
 	else
 		rec->u.run.rec_count = atomic_read(&erp->adapter->erp_counter);
 
+	debug_event(dbf->rec, level, rec, sizeof(*rec));
+	spin_unlock_irqrestore(&dbf->rec_lock, flags);
+}
+
+/**
+ * zfcp_dbf_rec_run - trace event related to running recovery
+ * @tag: identifier for event
+ * @erp: erp_action running
+ */
+void zfcp_dbf_rec_run(char *tag, struct zfcp_erp_action *erp)
+{
+	zfcp_dbf_rec_run_lvl(1, tag, erp);
+}
+
+/**
+ * zfcp_dbf_rec_run_wka - trace wka port event with info like running recovery
+ * @tag: identifier for event
+ * @wka_port: well known address port
+ * @req_id: request ID to correlate with potential HBA trace record
+ */
+void zfcp_dbf_rec_run_wka(char *tag, struct zfcp_fc_wka_port *wka_port,
+			  u64 req_id)
+{
+	struct zfcp_dbf *dbf = wka_port->adapter->dbf;
+	struct zfcp_dbf_rec *rec = &dbf->rec_buf;
+	unsigned long flags;
+
+	spin_lock_irqsave(&dbf->rec_lock, flags);
+	memset(rec, 0, sizeof(*rec));
+
+	rec->id = ZFCP_DBF_REC_RUN;
+	memcpy(rec->tag, tag, ZFCP_DBF_TAG_LEN);
+	rec->port_status = wka_port->status;
+	rec->d_id = wka_port->d_id;
+	rec->lun = ZFCP_DBF_INVALID_LUN;
+
+	rec->u.run.fsf_req_id = req_id;
+	rec->u.run.rec_status = ~0;
+	rec->u.run.rec_step = ~0;
+	rec->u.run.rec_action = ~0;
+	rec->u.run.rec_count = ~0;
+
 	debug_event(dbf->rec, 1, rec, sizeof(*rec));
 	spin_unlock_irqrestore(&dbf->rec_lock, flags);
 }
 
 static inline
-void zfcp_dbf_san(char *tag, struct zfcp_dbf *dbf, void *data, u8 id, u16 len,
-		  u64 req_id, u32 d_id)
+void zfcp_dbf_san(char *tag, struct zfcp_dbf *dbf,
+		  char *paytag, struct scatterlist *sg, u8 id, u16 len,
+		  u64 req_id, u32 d_id, u16 cap_len)
 {
 	struct zfcp_dbf_san *rec = &dbf->san_buf;
 	u16 rec_len;
 	unsigned long flags;
+	struct zfcp_dbf_pay *payload = &dbf->pay_buf;
+	u16 pay_sum = 0;
 
 	spin_lock_irqsave(&dbf->san_lock, flags);
 	memset(rec, 0, sizeof(*rec));
@@ -334,10 +383,41 @@ void zfcp_dbf_san(char *tag, struct zfcp
 	rec->id = id;
 	rec->fsf_req_id = req_id;
 	rec->d_id = d_id;
-	rec_len = min(len, (u16)ZFCP_DBF_SAN_MAX_PAYLOAD);
-	memcpy(rec->payload, data, rec_len);
 	memcpy(rec->tag, tag, ZFCP_DBF_TAG_LEN);
+	rec->pl_len = len; /* full length even if we cap pay below */
+	if (!sg)
+		goto out;
+	rec_len = min_t(unsigned int, sg->length, ZFCP_DBF_SAN_MAX_PAYLOAD);
+	memcpy(rec->payload, sg_virt(sg), rec_len); /* part of 1st sg entry */
+	if (len <= rec_len)
+		goto out; /* skip pay record if full content in rec->payload */
+
+	/* if (len > rec_len):
+	 * dump data up to cap_len ignoring small duplicate in rec->payload
+	 */
+	spin_lock(&dbf->pay_lock);
+	memset(payload, 0, sizeof(*payload));
+	memcpy(payload->area, paytag, ZFCP_DBF_TAG_LEN);
+	payload->fsf_req_id = req_id;
+	payload->counter = 0;
+	for (; sg && pay_sum < cap_len; sg = sg_next(sg)) {
+		u16 pay_len, offset = 0;
+
+		while (offset < sg->length && pay_sum < cap_len) {
+			pay_len = min((u16)ZFCP_DBF_PAY_MAX_REC,
+				      (u16)(sg->length - offset));
+			/* cap_len <= pay_sum < cap_len+ZFCP_DBF_PAY_MAX_REC */
+			memcpy(payload->data, sg_virt(sg) + offset, pay_len);
+			debug_event(dbf->pay, 1, payload,
+				    zfcp_dbf_plen(pay_len));
+			payload->counter++;
+			offset += pay_len;
+			pay_sum += pay_len;
+		}
+	}
+	spin_unlock(&dbf->pay_lock);
 
+out:
 	debug_event(dbf->san, 1, rec, sizeof(*rec));
 	spin_unlock_irqrestore(&dbf->san_lock, flags);
 }
@@ -354,9 +434,70 @@ void zfcp_dbf_san_req(char *tag, struct
 	struct zfcp_fsf_ct_els *ct_els = fsf->data;
 	u16 length;
 
-	length = (u16)(ct_els->req->length + FC_CT_HDR_LEN);
-	zfcp_dbf_san(tag, dbf, sg_virt(ct_els->req), ZFCP_DBF_SAN_REQ, length,
-		     fsf->req_id, d_id);
+	length = (u16)zfcp_qdio_real_bytes(ct_els->req);
+	zfcp_dbf_san(tag, dbf, "san_req", ct_els->req, ZFCP_DBF_SAN_REQ,
+		     length, fsf->req_id, d_id, length);
+}
+
+static u16 zfcp_dbf_san_res_cap_len_if_gpn_ft(char *tag,
+					      struct zfcp_fsf_req *fsf,
+					      u16 len)
+{
+	struct zfcp_fsf_ct_els *ct_els = fsf->data;
+	struct fc_ct_hdr *reqh = sg_virt(ct_els->req);
+	struct fc_ns_gid_ft *reqn = (struct fc_ns_gid_ft *)(reqh + 1);
+	struct scatterlist *resp_entry = ct_els->resp;
+	struct fc_ct_hdr *resph;
+	struct fc_gpn_ft_resp *acc;
+	int max_entries, x, last = 0;
+
+	if (!(memcmp(tag, "fsscth2", 7) == 0
+	      && ct_els->d_id == FC_FID_DIR_SERV
+	      && reqh->ct_rev == FC_CT_REV
+	      && reqh->ct_in_id[0] == 0
+	      && reqh->ct_in_id[1] == 0
+	      && reqh->ct_in_id[2] == 0
+	      && reqh->ct_fs_type == FC_FST_DIR
+	      && reqh->ct_fs_subtype == FC_NS_SUBTYPE
+	      && reqh->ct_options == 0
+	      && reqh->_ct_resvd1 == 0
+	      && reqh->ct_cmd == FC_NS_GPN_FT
+	      /* reqh->ct_mr_size can vary so do not match but read below */
+	      && reqh->_ct_resvd2 == 0
+	      && reqh->ct_reason == 0
+	      && reqh->ct_explan == 0
+	      && reqh->ct_vendor == 0
+	      && reqn->fn_resvd == 0
+	      && reqn->fn_domain_id_scope == 0
+	      && reqn->fn_area_id_scope == 0
+	      && reqn->fn_fc4_type == FC_TYPE_FCP))
+		return len; /* not GPN_FT response so do not cap */
+
+	acc = sg_virt(resp_entry);
+
+	/* cap all but accept CT responses to at least the CT header */
+	resph = (struct fc_ct_hdr *)acc;
+	if ((ct_els->status) ||
+	    (resph->ct_cmd != cpu_to_be16(FC_FS_ACC)))
+		return max(FC_CT_HDR_LEN, ZFCP_DBF_SAN_MAX_PAYLOAD);
+
+	max_entries = (reqh->ct_mr_size * 4 / sizeof(struct fc_gpn_ft_resp))
+		+ 1 /* zfcp_fc_scan_ports: bytes correct, entries off-by-one
+		     * to account for header as 1st pseudo "entry" */;
+
+	/* the basic CT_IU preamble is the same size as one entry in the GPN_FT
+	 * response, allowing us to skip special handling for it - just skip it
+	 */
+	for (x = 1; x < max_entries && !last; x++) {
+		if (x % (ZFCP_FC_GPN_FT_ENT_PAGE + 1))
+			acc++;
+		else
+			acc = sg_virt(++resp_entry);
+
+		last = acc->fp_flags & FC_NS_FID_LAST;
+	}
+	len = min(len, (u16)(x * sizeof(struct fc_gpn_ft_resp)));
+	return len; /* cap after last entry */
 }
 
 /**
@@ -370,9 +511,10 @@ void zfcp_dbf_san_res(char *tag, struct
 	struct zfcp_fsf_ct_els *ct_els = fsf->data;
 	u16 length;
 
-	length = (u16)(ct_els->resp->length + FC_CT_HDR_LEN);
-	zfcp_dbf_san(tag, dbf, sg_virt(ct_els->resp), ZFCP_DBF_SAN_RES, length,
-		     fsf->req_id, 0);
+	length = (u16)zfcp_qdio_real_bytes(ct_els->resp);
+	zfcp_dbf_san(tag, dbf, "san_res", ct_els->resp, ZFCP_DBF_SAN_RES,
+		     length, fsf->req_id, ct_els->d_id,
+		     zfcp_dbf_san_res_cap_len_if_gpn_ft(tag, fsf, length));
 }
 
 /**
@@ -386,11 +528,13 @@ void zfcp_dbf_san_in_els(char *tag, stru
 	struct fsf_status_read_buffer *srb =
 		(struct fsf_status_read_buffer *) fsf->data;
 	u16 length;
+	struct scatterlist sg;
 
 	length = (u16)(srb->length -
 			offsetof(struct fsf_status_read_buffer, payload));
-	zfcp_dbf_san(tag, dbf, srb->payload.data, ZFCP_DBF_SAN_ELS, length,
-		     fsf->req_id, ntoh24(srb->d_id));
+	sg_init_one(&sg, srb->payload.data, length);
+	zfcp_dbf_san(tag, dbf, "san_els", &sg, ZFCP_DBF_SAN_ELS, length,
+		     fsf->req_id, ntoh24(srb->d_id), length);
 }
 
 /**
@@ -399,7 +543,8 @@ void zfcp_dbf_san_in_els(char *tag, stru
  * @sc: pointer to struct scsi_cmnd
  * @fsf: pointer to struct zfcp_fsf_req
  */
-void zfcp_dbf_scsi(char *tag, struct scsi_cmnd *sc, struct zfcp_fsf_req *fsf)
+void zfcp_dbf_scsi(char *tag, int level, struct scsi_cmnd *sc,
+		   struct zfcp_fsf_req *fsf)
 {
 	struct zfcp_adapter *adapter =
 		(struct zfcp_adapter *) sc->device->host->hostdata[0];
@@ -418,8 +563,8 @@ void zfcp_dbf_scsi(char *tag, struct scs
 	rec->scsi_retries = sc->retries;
 	rec->scsi_allowed = sc->allowed;
 	rec->scsi_id = sc->device->id;
-	/* struct zfcp_dbf_scsi needs to be updated to handle 64bit LUNs */
 	rec->scsi_lun = (u32)sc->device->lun;
+	rec->scsi_lun_64_hi = (u32)(sc->device->lun >> 32);
 	rec->host_scribble = (unsigned long)sc->host_scribble;
 
 	memcpy(rec->scsi_opcode, sc->cmnd,
@@ -427,22 +572,35 @@ void zfcp_dbf_scsi(char *tag, struct scs
 
 	if (fsf) {
 		rec->fsf_req_id = fsf->req_id;
+		rec->pl_len = FCP_RESP_WITH_EXT;
 		fcp_rsp = (struct fcp_resp_with_ext *)
 				&(fsf->qtcb->bottom.io.fcp_rsp);
+		/* mandatory parts of FCP_RSP IU in this SCSI record */
 		memcpy(&rec->fcp_rsp, fcp_rsp, FCP_RESP_WITH_EXT);
 		if (fcp_rsp->resp.fr_flags & FCP_RSP_LEN_VAL) {
 			fcp_rsp_info = (struct fcp_resp_rsp_info *) &fcp_rsp[1];
 			rec->fcp_rsp_info = fcp_rsp_info->rsp_code;
+			rec->pl_len += be32_to_cpu(fcp_rsp->ext.fr_rsp_len);
 		}
 		if (fcp_rsp->resp.fr_flags & FCP_SNS_LEN_VAL) {
-			rec->pl_len = min((u16)SCSI_SENSE_BUFFERSIZE,
-					  (u16)ZFCP_DBF_PAY_MAX_REC);
-			zfcp_dbf_pl_write(dbf, sc->sense_buffer, rec->pl_len,
-					  "fcp_sns", fsf->req_id);
+			rec->pl_len += be32_to_cpu(fcp_rsp->ext.fr_sns_len);
 		}
+		/* complete FCP_RSP IU in associated PAYload record
+		 * but only if there are optional parts
+		 */
+		if (fcp_rsp->resp.fr_flags != 0)
+			zfcp_dbf_pl_write(
+				dbf, fcp_rsp,
+				/* at least one full PAY record
+				 * but not beyond hardware response field
+				 */
+				min_t(u16, max_t(u16, rec->pl_len,
+						 ZFCP_DBF_PAY_MAX_REC),
+				      FSF_FCP_RSP_SIZE),
+				"fcp_riu", fsf->req_id);
 	}
 
-	debug_event(dbf->scsi, 1, rec, sizeof(*rec));
+	debug_event(dbf->scsi, level, rec, sizeof(*rec));
 	spin_unlock_irqrestore(&dbf->scsi_lock, flags);
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/s390/scsi/zfcp_dbf.h linux-libre-4.4.107-gnu/drivers/s390/scsi/zfcp_dbf.h
--- linux-libre-4.4-gnu/drivers/s390/scsi/zfcp_dbf.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/s390/scsi/zfcp_dbf.h	2017-12-20 04:05:01.000000000 -0500
@@ -2,7 +2,7 @@
  * zfcp device driver
  * debug feature declarations
  *
- * Copyright IBM Corp. 2008, 2010
+ * Copyright IBM Corp. 2008, 2017
  */
 
 #ifndef ZFCP_DBF_H
@@ -17,6 +17,11 @@
 
 #define ZFCP_DBF_INVALID_LUN	0xFFFFFFFFFFFFFFFFull
 
+enum zfcp_dbf_pseudo_erp_act_type {
+	ZFCP_PSEUDO_ERP_ACTION_RPORT_ADD = 0xff,
+	ZFCP_PSEUDO_ERP_ACTION_RPORT_DEL = 0xfe,
+};
+
 /**
  * struct zfcp_dbf_rec_trigger - trace record for triggered recovery action
  * @ready: number of ready recovery actions
@@ -110,6 +115,7 @@ struct zfcp_dbf_san {
 	u32 d_id;
 #define ZFCP_DBF_SAN_MAX_PAYLOAD (FC_CT_HDR_LEN + 32)
 	char payload[ZFCP_DBF_SAN_MAX_PAYLOAD];
+	u16 pl_len;
 } __packed;
 
 /**
@@ -126,6 +132,8 @@ struct zfcp_dbf_hba_res {
 	u8  prot_status_qual[FSF_PROT_STATUS_QUAL_SIZE];
 	u32 fsf_status;
 	u8  fsf_status_qual[FSF_STATUS_QUALIFIER_SIZE];
+	u32 port_handle;
+	u32 lun_handle;
 } __packed;
 
 /**
@@ -196,7 +204,7 @@ enum zfcp_dbf_scsi_id {
  * @id: unique number of recovery record type
  * @tag: identifier string specifying the location of initiation
  * @scsi_id: scsi device id
- * @scsi_lun: scsi device logical unit number
+ * @scsi_lun: scsi device logical unit number, low part of 64 bit, old 32 bit
  * @scsi_result: scsi result
  * @scsi_retries: current retry number of scsi request
  * @scsi_allowed: allowed retries
@@ -206,6 +214,7 @@ enum zfcp_dbf_scsi_id {
  * @host_scribble: LLD specific data attached to SCSI request
  * @pl_len: length of paload stored as zfcp_dbf_pay
  * @fsf_rsp: response for fsf request
+ * @scsi_lun_64_hi: scsi device logical unit number, high part of 64 bit
  */
 struct zfcp_dbf_scsi {
 	u8 id;
@@ -222,6 +231,7 @@ struct zfcp_dbf_scsi {
 	u64 host_scribble;
 	u16 pl_len;
 	struct fcp_resp_with_ext fcp_rsp;
+	u32 scsi_lun_64_hi;
 } __packed;
 
 /**
@@ -275,11 +285,35 @@ struct zfcp_dbf {
 	struct zfcp_dbf_scsi		scsi_buf;
 };
 
+/**
+ * zfcp_dbf_hba_fsf_resp_suppress - true if we should not trace by default
+ * @req: request that has been completed
+ *
+ * Returns true if FCP response with only benign residual under count.
+ */
+static inline
+bool zfcp_dbf_hba_fsf_resp_suppress(struct zfcp_fsf_req *req)
+{
+	struct fsf_qtcb *qtcb = req->qtcb;
+	u32 fsf_stat = qtcb->header.fsf_status;
+	struct fcp_resp *fcp_rsp;
+	u8 rsp_flags, fr_status;
+
+	if (qtcb->prefix.qtcb_type != FSF_IO_COMMAND)
+		return false; /* not an FCP response */
+	fcp_rsp = (struct fcp_resp *)&qtcb->bottom.io.fcp_rsp;
+	rsp_flags = fcp_rsp->fr_flags;
+	fr_status = fcp_rsp->fr_status;
+	return (fsf_stat == FSF_FCP_RSP_AVAILABLE) &&
+		(rsp_flags == FCP_RESID_UNDER) &&
+		(fr_status == SAM_STAT_GOOD);
+}
+
 static inline
 void zfcp_dbf_hba_fsf_resp(char *tag, int level, struct zfcp_fsf_req *req)
 {
 	if (debug_level_enabled(req->adapter->dbf->hba, level))
-		zfcp_dbf_hba_fsf_res(tag, req);
+		zfcp_dbf_hba_fsf_res(tag, level, req);
 }
 
 /**
@@ -291,12 +325,18 @@ void zfcp_dbf_hba_fsf_response(struct zf
 {
 	struct fsf_qtcb *qtcb = req->qtcb;
 
-	if ((qtcb->prefix.prot_status != FSF_PROT_GOOD) &&
+	if (unlikely(req->status & (ZFCP_STATUS_FSFREQ_DISMISSED |
+				    ZFCP_STATUS_FSFREQ_ERROR))) {
+		zfcp_dbf_hba_fsf_resp("fs_rerr", 3, req);
+
+	} else if ((qtcb->prefix.prot_status != FSF_PROT_GOOD) &&
 	    (qtcb->prefix.prot_status != FSF_PROT_FSF_STATUS_PRESENTED)) {
 		zfcp_dbf_hba_fsf_resp("fs_perr", 1, req);
 
 	} else if (qtcb->header.fsf_status != FSF_GOOD) {
-		zfcp_dbf_hba_fsf_resp("fs_ferr", 1, req);
+		zfcp_dbf_hba_fsf_resp("fs_ferr",
+				      zfcp_dbf_hba_fsf_resp_suppress(req)
+				      ? 5 : 1, req);
 
 	} else if ((req->fsf_command == FSF_QTCB_OPEN_PORT_WITH_DID) ||
 		   (req->fsf_command == FSF_QTCB_OPEN_LUN)) {
@@ -318,7 +358,7 @@ void _zfcp_dbf_scsi(char *tag, int level
 					scmd->device->host->hostdata[0];
 
 	if (debug_level_enabled(adapter->dbf->scsi, level))
-		zfcp_dbf_scsi(tag, scmd, req);
+		zfcp_dbf_scsi(tag, level, scmd, req);
 }
 
 /**
@@ -367,7 +407,8 @@ void zfcp_dbf_scsi_abort(char *tag, stru
  * @flag: indicates type of reset (Target Reset, Logical Unit Reset)
  */
 static inline
-void zfcp_dbf_scsi_devreset(char *tag, struct scsi_cmnd *scmnd, u8 flag)
+void zfcp_dbf_scsi_devreset(char *tag, struct scsi_cmnd *scmnd, u8 flag,
+			    struct zfcp_fsf_req *fsf_req)
 {
 	char tmp_tag[ZFCP_DBF_TAG_LEN];
 
@@ -377,7 +418,18 @@ void zfcp_dbf_scsi_devreset(char *tag, s
 		memcpy(tmp_tag, "lr_", 3);
 
 	memcpy(&tmp_tag[3], tag, 4);
-	_zfcp_dbf_scsi(tmp_tag, 1, scmnd, NULL);
+	_zfcp_dbf_scsi(tmp_tag, 1, scmnd, fsf_req);
+}
+
+/**
+ * zfcp_dbf_scsi_nullcmnd() - trace NULLify of SCSI command in dev/tgt-reset.
+ * @scmnd: SCSI command that was NULLified.
+ * @fsf_req: request that owned @scmnd.
+ */
+static inline void zfcp_dbf_scsi_nullcmnd(struct scsi_cmnd *scmnd,
+					  struct zfcp_fsf_req *fsf_req)
+{
+	_zfcp_dbf_scsi("scfc__1", 3, scmnd, fsf_req);
 }
 
 #endif /* ZFCP_DBF_H */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/s390/scsi/zfcp_erp.c linux-libre-4.4.107-gnu/drivers/s390/scsi/zfcp_erp.c
--- linux-libre-4.4-gnu/drivers/s390/scsi/zfcp_erp.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/s390/scsi/zfcp_erp.c	2017-12-20 04:05:01.000000000 -0500
@@ -3,7 +3,7 @@
  *
  * Error Recovery Procedures (ERP).
  *
- * Copyright IBM Corp. 2002, 2010
+ * Copyright IBM Corp. 2002, 2016
  */
 
 #define KMSG_COMPONENT "zfcp"
@@ -193,9 +193,8 @@ static struct zfcp_erp_action *zfcp_erp_
 		atomic_or(ZFCP_STATUS_COMMON_ERP_INUSE,
 				&zfcp_sdev->status);
 		erp_action = &zfcp_sdev->erp_action;
-		memset(erp_action, 0, sizeof(struct zfcp_erp_action));
-		erp_action->port = port;
-		erp_action->sdev = sdev;
+		WARN_ON_ONCE(erp_action->port != port);
+		WARN_ON_ONCE(erp_action->sdev != sdev);
 		if (!(atomic_read(&zfcp_sdev->status) &
 		      ZFCP_STATUS_COMMON_RUNNING))
 			act_status |= ZFCP_STATUS_ERP_CLOSE_ONLY;
@@ -208,8 +207,8 @@ static struct zfcp_erp_action *zfcp_erp_
 		zfcp_erp_action_dismiss_port(port);
 		atomic_or(ZFCP_STATUS_COMMON_ERP_INUSE, &port->status);
 		erp_action = &port->erp_action;
-		memset(erp_action, 0, sizeof(struct zfcp_erp_action));
-		erp_action->port = port;
+		WARN_ON_ONCE(erp_action->port != port);
+		WARN_ON_ONCE(erp_action->sdev != NULL);
 		if (!(atomic_read(&port->status) & ZFCP_STATUS_COMMON_RUNNING))
 			act_status |= ZFCP_STATUS_ERP_CLOSE_ONLY;
 		break;
@@ -219,7 +218,8 @@ static struct zfcp_erp_action *zfcp_erp_
 		zfcp_erp_action_dismiss_adapter(adapter);
 		atomic_or(ZFCP_STATUS_COMMON_ERP_INUSE, &adapter->status);
 		erp_action = &adapter->erp_action;
-		memset(erp_action, 0, sizeof(struct zfcp_erp_action));
+		WARN_ON_ONCE(erp_action->port != NULL);
+		WARN_ON_ONCE(erp_action->sdev != NULL);
 		if (!(atomic_read(&adapter->status) &
 		      ZFCP_STATUS_COMMON_RUNNING))
 			act_status |= ZFCP_STATUS_ERP_CLOSE_ONLY;
@@ -229,7 +229,11 @@ static struct zfcp_erp_action *zfcp_erp_
 		return NULL;
 	}
 
-	erp_action->adapter = adapter;
+	WARN_ON_ONCE(erp_action->adapter != adapter);
+	memset(&erp_action->list, 0, sizeof(erp_action->list));
+	memset(&erp_action->timer, 0, sizeof(erp_action->timer));
+	erp_action->step = ZFCP_ERP_STEP_UNINITIALIZED;
+	erp_action->fsf_req_id = 0;
 	erp_action->action = need;
 	erp_action->status = act_status;
 
@@ -1204,6 +1208,62 @@ static void zfcp_erp_action_dequeue(stru
 	}
 }
 
+/**
+ * zfcp_erp_try_rport_unblock - unblock rport if no more/new recovery
+ * @port: zfcp_port whose fc_rport we should try to unblock
+ */
+static void zfcp_erp_try_rport_unblock(struct zfcp_port *port)
+{
+	unsigned long flags;
+	struct zfcp_adapter *adapter = port->adapter;
+	int port_status;
+	struct Scsi_Host *shost = adapter->scsi_host;
+	struct scsi_device *sdev;
+
+	write_lock_irqsave(&adapter->erp_lock, flags);
+	port_status = atomic_read(&port->status);
+	if ((port_status & ZFCP_STATUS_COMMON_UNBLOCKED)    == 0 ||
+	    (port_status & (ZFCP_STATUS_COMMON_ERP_INUSE |
+			    ZFCP_STATUS_COMMON_ERP_FAILED)) != 0) {
+		/* new ERP of severity >= port triggered elsewhere meanwhile or
+		 * local link down (adapter erp_failed but not clear unblock)
+		 */
+		zfcp_dbf_rec_run_lvl(4, "ertru_p", &port->erp_action);
+		write_unlock_irqrestore(&adapter->erp_lock, flags);
+		return;
+	}
+	spin_lock(shost->host_lock);
+	__shost_for_each_device(sdev, shost) {
+		struct zfcp_scsi_dev *zsdev = sdev_to_zfcp(sdev);
+		int lun_status;
+
+		if (zsdev->port != port)
+			continue;
+		/* LUN under port of interest */
+		lun_status = atomic_read(&zsdev->status);
+		if ((lun_status & ZFCP_STATUS_COMMON_ERP_FAILED) != 0)
+			continue; /* unblock rport despite failed LUNs */
+		/* LUN recovery not given up yet [maybe follow-up pending] */
+		if ((lun_status & ZFCP_STATUS_COMMON_UNBLOCKED) == 0 ||
+		    (lun_status & ZFCP_STATUS_COMMON_ERP_INUSE) != 0) {
+			/* LUN blocked:
+			 * not yet unblocked [LUN recovery pending]
+			 * or meanwhile blocked [new LUN recovery triggered]
+			 */
+			zfcp_dbf_rec_run_lvl(4, "ertru_l", &zsdev->erp_action);
+			spin_unlock(shost->host_lock);
+			write_unlock_irqrestore(&adapter->erp_lock, flags);
+			return;
+		}
+	}
+	/* now port has no child or all children have completed recovery,
+	 * and no ERP of severity >= port was meanwhile triggered elsewhere
+	 */
+	zfcp_scsi_schedule_rport_register(port);
+	spin_unlock(shost->host_lock);
+	write_unlock_irqrestore(&adapter->erp_lock, flags);
+}
+
 static void zfcp_erp_action_cleanup(struct zfcp_erp_action *act, int result)
 {
 	struct zfcp_adapter *adapter = act->adapter;
@@ -1214,11 +1274,18 @@ static void zfcp_erp_action_cleanup(stru
 	case ZFCP_ERP_ACTION_REOPEN_LUN:
 		if (!(act->status & ZFCP_STATUS_ERP_NO_REF))
 			scsi_device_put(sdev);
+		zfcp_erp_try_rport_unblock(port);
 		break;
 
 	case ZFCP_ERP_ACTION_REOPEN_PORT:
-		if (result == ZFCP_ERP_SUCCEEDED)
-			zfcp_scsi_schedule_rport_register(port);
+		/* This switch case might also happen after a forced reopen
+		 * was successfully done and thus overwritten with a new
+		 * non-forced reopen at `ersfs_2'. In this case, we must not
+		 * do the clean-up of the non-forced version.
+		 */
+		if (act->step != ZFCP_ERP_STEP_UNINITIALIZED)
+			if (result == ZFCP_ERP_SUCCEEDED)
+				zfcp_erp_try_rport_unblock(port);
 		/* fall through */
 	case ZFCP_ERP_ACTION_REOPEN_PORT_FORCED:
 		put_device(&port->dev);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/s390/scsi/zfcp_ext.h linux-libre-4.4.107-gnu/drivers/s390/scsi/zfcp_ext.h
--- linux-libre-4.4-gnu/drivers/s390/scsi/zfcp_ext.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/s390/scsi/zfcp_ext.h	2017-12-20 04:05:01.000000000 -0500
@@ -3,7 +3,7 @@
  *
  * External function declarations.
  *
- * Copyright IBM Corp. 2002, 2010
+ * Copyright IBM Corp. 2002, 2016
  */
 
 #ifndef ZFCP_EXT_H
@@ -35,8 +35,11 @@ extern void zfcp_dbf_adapter_unregister(
 extern void zfcp_dbf_rec_trig(char *, struct zfcp_adapter *,
 			      struct zfcp_port *, struct scsi_device *, u8, u8);
 extern void zfcp_dbf_rec_run(char *, struct zfcp_erp_action *);
+extern void zfcp_dbf_rec_run_lvl(int level, char *tag,
+				 struct zfcp_erp_action *erp);
+extern void zfcp_dbf_rec_run_wka(char *, struct zfcp_fc_wka_port *, u64);
 extern void zfcp_dbf_hba_fsf_uss(char *, struct zfcp_fsf_req *);
-extern void zfcp_dbf_hba_fsf_res(char *, struct zfcp_fsf_req *);
+extern void zfcp_dbf_hba_fsf_res(char *, int, struct zfcp_fsf_req *);
 extern void zfcp_dbf_hba_bit_err(char *, struct zfcp_fsf_req *);
 extern void zfcp_dbf_hba_berr(struct zfcp_dbf *, struct zfcp_fsf_req *);
 extern void zfcp_dbf_hba_def_err(struct zfcp_adapter *, u64, u16, void **);
@@ -44,7 +47,8 @@ extern void zfcp_dbf_hba_basic(char *, s
 extern void zfcp_dbf_san_req(char *, struct zfcp_fsf_req *, u32);
 extern void zfcp_dbf_san_res(char *, struct zfcp_fsf_req *);
 extern void zfcp_dbf_san_in_els(char *, struct zfcp_fsf_req *);
-extern void zfcp_dbf_scsi(char *, struct scsi_cmnd *, struct zfcp_fsf_req *);
+extern void zfcp_dbf_scsi(char *, int, struct scsi_cmnd *,
+			  struct zfcp_fsf_req *);
 
 /* zfcp_erp.c */
 extern void zfcp_erp_set_adapter_status(struct zfcp_adapter *, u32);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/s390/scsi/zfcp_fc.h linux-libre-4.4.107-gnu/drivers/s390/scsi/zfcp_fc.h
--- linux-libre-4.4-gnu/drivers/s390/scsi/zfcp_fc.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/s390/scsi/zfcp_fc.h	2017-12-20 04:05:01.000000000 -0500
@@ -4,7 +4,7 @@
  * Fibre Channel related definitions and inline functions for the zfcp
  * device driver
  *
- * Copyright IBM Corp. 2009
+ * Copyright IBM Corp. 2009, 2017
  */
 
 #ifndef ZFCP_FC_H
@@ -279,6 +279,10 @@ void zfcp_fc_eval_fcp_rsp(struct fcp_res
 		     !(rsp_flags & FCP_SNS_LEN_VAL) &&
 		     fcp_rsp->resp.fr_status == SAM_STAT_GOOD)
 			set_host_byte(scsi, DID_ERROR);
+	} else if (unlikely(rsp_flags & FCP_RESID_OVER)) {
+		/* FCP_DL was not sufficient for SCSI data length */
+		if (fcp_rsp->resp.fr_status == SAM_STAT_GOOD)
+			set_host_byte(scsi, DID_ERROR);
 	}
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/s390/scsi/zfcp_fsf.c linux-libre-4.4.107-gnu/drivers/s390/scsi/zfcp_fsf.c
--- linux-libre-4.4-gnu/drivers/s390/scsi/zfcp_fsf.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/s390/scsi/zfcp_fsf.c	2017-12-20 04:05:01.000000000 -0500
@@ -3,7 +3,7 @@
  *
  * Implementation of FSF commands.
  *
- * Copyright IBM Corp. 2002, 2013
+ * Copyright IBM Corp. 2002, 2015
  */
 
 #define KMSG_COMPONENT "zfcp"
@@ -508,7 +508,10 @@ static int zfcp_fsf_exchange_config_eval
 		fc_host_port_type(shost) = FC_PORTTYPE_PTP;
 		break;
 	case FSF_TOPO_FABRIC:
-		fc_host_port_type(shost) = FC_PORTTYPE_NPORT;
+		if (bottom->connection_features & FSF_FEATURE_NPIV_MODE)
+			fc_host_port_type(shost) = FC_PORTTYPE_NPIV;
+		else
+			fc_host_port_type(shost) = FC_PORTTYPE_NPORT;
 		break;
 	case FSF_TOPO_AL:
 		fc_host_port_type(shost) = FC_PORTTYPE_NLPORT;
@@ -613,7 +616,6 @@ static void zfcp_fsf_exchange_port_evalu
 
 	if (adapter->connection_features & FSF_FEATURE_NPIV_MODE) {
 		fc_host_permanent_port_name(shost) = bottom->wwpn;
-		fc_host_port_type(shost) = FC_PORTTYPE_NPIV;
 	} else
 		fc_host_permanent_port_name(shost) = fc_host_port_name(shost);
 	fc_host_maxframe_size(shost) = bottom->maximum_frame_size;
@@ -926,8 +928,8 @@ static void zfcp_fsf_send_ct_handler(str
 
 	switch (header->fsf_status) {
         case FSF_GOOD:
-		zfcp_dbf_san_res("fsscth2", req);
 		ct->status = 0;
+		zfcp_dbf_san_res("fsscth2", req);
 		break;
         case FSF_SERVICE_CLASS_NOT_SUPPORTED:
 		zfcp_fsf_class_not_supp(req);
@@ -982,8 +984,12 @@ static int zfcp_fsf_setup_ct_els_sbals(s
 	if (zfcp_adapter_multi_buffer_active(adapter)) {
 		if (zfcp_qdio_sbals_from_sg(qdio, &req->qdio_req, sg_req))
 			return -EIO;
+		qtcb->bottom.support.req_buf_length =
+			zfcp_qdio_real_bytes(sg_req);
 		if (zfcp_qdio_sbals_from_sg(qdio, &req->qdio_req, sg_resp))
 			return -EIO;
+		qtcb->bottom.support.resp_buf_length =
+			zfcp_qdio_real_bytes(sg_resp);
 
 		zfcp_qdio_set_data_div(qdio, &req->qdio_req,
 					zfcp_qdio_sbale_count(sg_req));
@@ -1073,6 +1079,7 @@ int zfcp_fsf_send_ct(struct zfcp_fc_wka_
 
 	req->handler = zfcp_fsf_send_ct_handler;
 	req->qtcb->header.port_handle = wka_port->handle;
+	ct->d_id = wka_port->d_id;
 	req->data = ct;
 
 	zfcp_dbf_san_req("fssct_1", req, wka_port->d_id);
@@ -1102,8 +1109,8 @@ static void zfcp_fsf_send_els_handler(st
 
 	switch (header->fsf_status) {
 	case FSF_GOOD:
-		zfcp_dbf_san_res("fsselh1", req);
 		send_els->status = 0;
+		zfcp_dbf_san_res("fsselh1", req);
 		break;
 	case FSF_SERVICE_CLASS_NOT_SUPPORTED:
 		zfcp_fsf_class_not_supp(req);
@@ -1169,6 +1176,7 @@ int zfcp_fsf_send_els(struct zfcp_adapte
 
 	hton24(req->qtcb->bottom.support.d_id, d_id);
 	req->handler = zfcp_fsf_send_els_handler;
+	els->d_id = d_id;
 	req->data = els;
 
 	zfcp_dbf_san_req("fssels1", req, d_id);
@@ -1604,6 +1612,8 @@ int zfcp_fsf_open_wka_port(struct zfcp_f
 		zfcp_fsf_req_free(req);
 out:
 	spin_unlock_irq(&qdio->req_q_lock);
+	if (!retval)
+		zfcp_dbf_rec_run_wka("fsowp_1", wka_port, req->req_id);
 	return retval;
 }
 
@@ -1657,6 +1667,8 @@ int zfcp_fsf_close_wka_port(struct zfcp_
 		zfcp_fsf_req_free(req);
 out:
 	spin_unlock_irq(&qdio->req_q_lock);
+	if (!retval)
+		zfcp_dbf_rec_run_wka("fscwp_1", wka_port, req->req_id);
 	return retval;
 }
 
@@ -2246,7 +2258,8 @@ int zfcp_fsf_fcp_cmnd(struct scsi_cmnd *
 	fcp_cmnd = (struct fcp_cmnd *) &req->qtcb->bottom.io.fcp_cmnd;
 	zfcp_fc_scsi_to_fcp(fcp_cmnd, scsi_cmnd, 0);
 
-	if (scsi_prot_sg_count(scsi_cmnd)) {
+	if ((scsi_get_prot_op(scsi_cmnd) != SCSI_PROT_NORMAL) &&
+	    scsi_prot_sg_count(scsi_cmnd)) {
 		zfcp_qdio_set_data_div(qdio, &req->qdio_req,
 				       scsi_prot_sg_count(scsi_cmnd));
 		retval = zfcp_qdio_sbals_from_sg(qdio, &req->qdio_req,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/s390/scsi/zfcp_fsf.h linux-libre-4.4.107-gnu/drivers/s390/scsi/zfcp_fsf.h
--- linux-libre-4.4-gnu/drivers/s390/scsi/zfcp_fsf.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/s390/scsi/zfcp_fsf.h	2017-12-20 04:05:01.000000000 -0500
@@ -3,7 +3,7 @@
  *
  * Interface to the FSF support functions.
  *
- * Copyright IBM Corp. 2002, 2010
+ * Copyright IBM Corp. 2002, 2016
  */
 
 #ifndef FSF_H
@@ -78,6 +78,7 @@
 #define FSF_APP_TAG_CHECK_FAILURE		0x00000082
 #define FSF_REF_TAG_CHECK_FAILURE		0x00000083
 #define FSF_ADAPTER_STATUS_AVAILABLE		0x000000AD
+#define FSF_FCP_RSP_AVAILABLE			0x000000AF
 #define FSF_UNKNOWN_COMMAND			0x000000E2
 #define FSF_UNKNOWN_OP_SUBTYPE                  0x000000E3
 #define FSF_INVALID_COMMAND_OPTION              0x000000E5
@@ -436,6 +437,7 @@ struct zfcp_blk_drv_data {
  * @handler_data: data passed to handler function
  * @port: Optional pointer to port for zfcp internal ELS (only test link ADISC)
  * @status: used to pass error status to calling function
+ * @d_id: Destination ID of either open WKA port for CT or of D_ID for ELS
  */
 struct zfcp_fsf_ct_els {
 	struct scatterlist *req;
@@ -444,6 +446,7 @@ struct zfcp_fsf_ct_els {
 	void *handler_data;
 	struct zfcp_port *port;
 	int status;
+	u32 d_id;
 };
 
 #endif				/* FSF_H */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/s390/scsi/zfcp_reqlist.h linux-libre-4.4.107-gnu/drivers/s390/scsi/zfcp_reqlist.h
--- linux-libre-4.4-gnu/drivers/s390/scsi/zfcp_reqlist.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/s390/scsi/zfcp_reqlist.h	2017-12-20 04:05:01.000000000 -0500
@@ -4,7 +4,7 @@
  * Data structure and helper functions for tracking pending FSF
  * requests.
  *
- * Copyright IBM Corp. 2009
+ * Copyright IBM Corp. 2009, 2016
  */
 
 #ifndef ZFCP_REQLIST_H
@@ -180,4 +180,32 @@ static inline void zfcp_reqlist_move(str
 	spin_unlock_irqrestore(&rl->lock, flags);
 }
 
+/**
+ * zfcp_reqlist_apply_for_all() - apply a function to every request.
+ * @rl: the requestlist that contains the target requests.
+ * @f: the function to apply to each request; the first parameter of the
+ *     function will be the target-request; the second parameter is the same
+ *     pointer as given with the argument @data.
+ * @data: freely chosen argument; passed through to @f as second parameter.
+ *
+ * Uses :c:macro:`list_for_each_entry` to iterate over the lists in the hash-
+ * table (not a 'safe' variant, so don't modify the list).
+ *
+ * Holds @rl->lock over the entire request-iteration.
+ */
+static inline void
+zfcp_reqlist_apply_for_all(struct zfcp_reqlist *rl,
+			   void (*f)(struct zfcp_fsf_req *, void *), void *data)
+{
+	struct zfcp_fsf_req *req;
+	unsigned long flags;
+	unsigned int i;
+
+	spin_lock_irqsave(&rl->lock, flags);
+	for (i = 0; i < ZFCP_REQ_LIST_BUCKETS; i++)
+		list_for_each_entry(req, &rl->buckets[i], list)
+			f(req, data);
+	spin_unlock_irqrestore(&rl->lock, flags);
+}
+
 #endif /* ZFCP_REQLIST_H */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/s390/scsi/zfcp_scsi.c linux-libre-4.4.107-gnu/drivers/s390/scsi/zfcp_scsi.c
--- linux-libre-4.4-gnu/drivers/s390/scsi/zfcp_scsi.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/s390/scsi/zfcp_scsi.c	2017-12-20 04:05:01.000000000 -0500
@@ -3,7 +3,7 @@
  *
  * Interface to Linux SCSI midlayer.
  *
- * Copyright IBM Corp. 2002, 2013
+ * Copyright IBM Corp. 2002, 2017
  */
 
 #define KMSG_COMPONENT "zfcp"
@@ -88,9 +88,7 @@ int zfcp_scsi_queuecommand(struct Scsi_H
 	}
 
 	if (unlikely(!(status & ZFCP_STATUS_COMMON_UNBLOCKED))) {
-		/* This could be either
-		 * open LUN pending: this is temporary, will result in
-		 *	open LUN or ERP_FAILED, so retry command
+		/* This could be
 		 * call to rport_delete pending: mimic retry from
 		 * 	fc_remote_port_chkready until rport is BLOCKED
 		 */
@@ -117,10 +115,15 @@ static int zfcp_scsi_slave_alloc(struct
 	struct zfcp_unit *unit;
 	int npiv = adapter->connection_features & FSF_FEATURE_NPIV_MODE;
 
+	zfcp_sdev->erp_action.adapter = adapter;
+	zfcp_sdev->erp_action.sdev = sdev;
+
 	port = zfcp_get_port_by_wwpn(adapter, rport->port_name);
 	if (!port)
 		return -ENXIO;
 
+	zfcp_sdev->erp_action.port = port;
+
 	unit = zfcp_unit_find(port, zfcp_scsi_dev_lun(sdev));
 	if (unit)
 		put_device(&unit->dev);
@@ -209,6 +212,57 @@ static int zfcp_scsi_eh_abort_handler(st
 	return retval;
 }
 
+struct zfcp_scsi_req_filter {
+	u8 tmf_scope;
+	u32 lun_handle;
+	u32 port_handle;
+};
+
+static void zfcp_scsi_forget_cmnd(struct zfcp_fsf_req *old_req, void *data)
+{
+	struct zfcp_scsi_req_filter *filter =
+		(struct zfcp_scsi_req_filter *)data;
+
+	/* already aborted - prevent side-effects - or not a SCSI command */
+	if (old_req->data == NULL || old_req->fsf_command != FSF_QTCB_FCP_CMND)
+		return;
+
+	/* (tmf_scope == FCP_TMF_TGT_RESET || tmf_scope == FCP_TMF_LUN_RESET) */
+	if (old_req->qtcb->header.port_handle != filter->port_handle)
+		return;
+
+	if (filter->tmf_scope == FCP_TMF_LUN_RESET &&
+	    old_req->qtcb->header.lun_handle != filter->lun_handle)
+		return;
+
+	zfcp_dbf_scsi_nullcmnd((struct scsi_cmnd *)old_req->data, old_req);
+	old_req->data = NULL;
+}
+
+static void zfcp_scsi_forget_cmnds(struct zfcp_scsi_dev *zsdev, u8 tm_flags)
+{
+	struct zfcp_adapter *adapter = zsdev->port->adapter;
+	struct zfcp_scsi_req_filter filter = {
+		.tmf_scope = FCP_TMF_TGT_RESET,
+		.port_handle = zsdev->port->handle,
+	};
+	unsigned long flags;
+
+	if (tm_flags == FCP_TMF_LUN_RESET) {
+		filter.tmf_scope = FCP_TMF_LUN_RESET;
+		filter.lun_handle = zsdev->lun_handle;
+	}
+
+	/*
+	 * abort_lock secures against other processings - in the abort-function
+	 * and normal cmnd-handler - of (struct zfcp_fsf_req *)->data
+	 */
+	write_lock_irqsave(&adapter->abort_lock, flags);
+	zfcp_reqlist_apply_for_all(adapter->req_list, zfcp_scsi_forget_cmnd,
+				   &filter);
+	write_unlock_irqrestore(&adapter->abort_lock, flags);
+}
+
 static int zfcp_task_mgmt_function(struct scsi_cmnd *scpnt, u8 tm_flags)
 {
 	struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(scpnt->device);
@@ -224,25 +278,31 @@ static int zfcp_task_mgmt_function(struc
 
 		zfcp_erp_wait(adapter);
 		ret = fc_block_scsi_eh(scpnt);
-		if (ret)
+		if (ret) {
+			zfcp_dbf_scsi_devreset("fiof", scpnt, tm_flags, NULL);
 			return ret;
+		}
 
 		if (!(atomic_read(&adapter->status) &
 		      ZFCP_STATUS_COMMON_RUNNING)) {
-			zfcp_dbf_scsi_devreset("nres", scpnt, tm_flags);
+			zfcp_dbf_scsi_devreset("nres", scpnt, tm_flags, NULL);
 			return SUCCESS;
 		}
 	}
-	if (!fsf_req)
+	if (!fsf_req) {
+		zfcp_dbf_scsi_devreset("reqf", scpnt, tm_flags, NULL);
 		return FAILED;
+	}
 
 	wait_for_completion(&fsf_req->completion);
 
 	if (fsf_req->status & ZFCP_STATUS_FSFREQ_TMFUNCFAILED) {
-		zfcp_dbf_scsi_devreset("fail", scpnt, tm_flags);
+		zfcp_dbf_scsi_devreset("fail", scpnt, tm_flags, fsf_req);
 		retval = FAILED;
-	} else
-		zfcp_dbf_scsi_devreset("okay", scpnt, tm_flags);
+	} else {
+		zfcp_dbf_scsi_devreset("okay", scpnt, tm_flags, fsf_req);
+		zfcp_scsi_forget_cmnds(zfcp_sdev, tm_flags);
+	}
 
 	zfcp_fsf_req_free(fsf_req);
 	return retval;
@@ -556,6 +616,9 @@ static void zfcp_scsi_rport_register(str
 	ids.port_id = port->d_id;
 	ids.roles = FC_RPORT_ROLE_FCP_TARGET;
 
+	zfcp_dbf_rec_trig("scpaddy", port->adapter, port, NULL,
+			  ZFCP_PSEUDO_ERP_ACTION_RPORT_ADD,
+			  ZFCP_PSEUDO_ERP_ACTION_RPORT_ADD);
 	rport = fc_remote_port_add(port->adapter->scsi_host, 0, &ids);
 	if (!rport) {
 		dev_err(&port->adapter->ccw_device->dev,
@@ -577,6 +640,9 @@ static void zfcp_scsi_rport_block(struct
 	struct fc_rport *rport = port->rport;
 
 	if (rport) {
+		zfcp_dbf_rec_trig("scpdely", port->adapter, port, NULL,
+				  ZFCP_PSEUDO_ERP_ACTION_RPORT_DEL,
+				  ZFCP_PSEUDO_ERP_ACTION_RPORT_DEL);
 		fc_remote_port_delete(rport);
 		port->rport = NULL;
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/53c700.c linux-libre-4.4.107-gnu/drivers/scsi/53c700.c
--- linux-libre-4.4-gnu/drivers/scsi/53c700.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/53c700.c	2017-12-20 04:05:01.000000000 -0500
@@ -1122,7 +1122,7 @@ process_script_interrupt(__u32 dsps, __u
 		} else {
 			struct scsi_cmnd *SCp;
 
-			SCp = scsi_host_find_tag(SDp->host, SCSI_NO_TAG);
+			SCp = SDp->current_cmnd;
 			if(unlikely(SCp == NULL)) {
 				sdev_printk(KERN_ERR, SDp,
 					"no saved request for untagged cmd\n");
@@ -1826,7 +1826,7 @@ NCR_700_queuecommand_lck(struct scsi_cmn
 		       slot->tag, slot);
 	} else {
 		slot->tag = SCSI_NO_TAG;
-		/* must populate current_cmnd for scsi_host_find_tag to work */
+		/* save current command for reselection */
 		SCp->device->current_cmnd = SCp;
 	}
 	/* sanity check: some of the commands generated by the mid-layer
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/aacraid/aachba.c linux-libre-4.4.107-gnu/drivers/scsi/aacraid/aachba.c
--- linux-libre-4.4-gnu/drivers/scsi/aacraid/aachba.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/aacraid/aachba.c	2017-12-20 04:05:01.000000000 -0500
@@ -2977,16 +2977,11 @@ static void aac_srb_callback(void *conte
 		return;
 
 	BUG_ON(fibptr == NULL);
-	dev = fibptr->dev;
-
-	scsi_dma_unmap(scsicmd);
 
-	/* expose physical device if expose_physicald flag is on */
-	if (scsicmd->cmnd[0] == INQUIRY && !(scsicmd->cmnd[1] & 0x01)
-	  && expose_physicals > 0)
-		aac_expose_phy_device(scsicmd);
+	dev = fibptr->dev;
 
 	srbreply = (struct aac_srb_reply *) fib_data(fibptr);
+
 	scsicmd->sense_buffer[0] = '\0';  /* Initialize sense valid flag to false */
 
 	if (fibptr->flags & FIB_CONTEXT_FLAG_FASTRESP) {
@@ -2999,158 +2994,176 @@ static void aac_srb_callback(void *conte
 		 */
 		scsi_set_resid(scsicmd, scsi_bufflen(scsicmd)
 				   - le32_to_cpu(srbreply->data_xfer_length));
-		/*
-		 * First check the fib status
-		 */
+	}
 
-		if (le32_to_cpu(srbreply->status) != ST_OK) {
-			int len;
 
-			printk(KERN_WARNING "aac_srb_callback: srb failed, status = %d\n", le32_to_cpu(srbreply->status));
-			len = min_t(u32, le32_to_cpu(srbreply->sense_data_size),
-				    SCSI_SENSE_BUFFERSIZE);
-			scsicmd->result = DID_ERROR << 16
-						| COMMAND_COMPLETE << 8
-						| SAM_STAT_CHECK_CONDITION;
-			memcpy(scsicmd->sense_buffer,
-					srbreply->sense_data, len);
-		}
+	scsi_dma_unmap(scsicmd);
 
-		/*
-		 * Next check the srb status
-		 */
-		switch ((le32_to_cpu(srbreply->srb_status))&0x3f) {
-		case SRB_STATUS_ERROR_RECOVERY:
-		case SRB_STATUS_PENDING:
-		case SRB_STATUS_SUCCESS:
-			scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
-			break;
-		case SRB_STATUS_DATA_OVERRUN:
-			switch (scsicmd->cmnd[0]) {
-			case  READ_6:
-			case  WRITE_6:
-			case  READ_10:
-			case  WRITE_10:
-			case  READ_12:
-			case  WRITE_12:
-			case  READ_16:
-			case  WRITE_16:
-				if (le32_to_cpu(srbreply->data_xfer_length)
-							< scsicmd->underflow)
-					printk(KERN_WARNING"aacraid: SCSI CMD underflow\n");
-				else
-					printk(KERN_WARNING"aacraid: SCSI CMD Data Overrun\n");
-				scsicmd->result = DID_ERROR << 16
-							| COMMAND_COMPLETE << 8;
-				break;
-			case INQUIRY: {
-				scsicmd->result = DID_OK << 16
-							| COMMAND_COMPLETE << 8;
-				break;
-			}
-			default:
-				scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
-				break;
-			}
-			break;
-		case SRB_STATUS_ABORTED:
-			scsicmd->result = DID_ABORT << 16 | ABORT << 8;
-			break;
-		case SRB_STATUS_ABORT_FAILED:
-			/*
-			 * Not sure about this one - but assuming the
-			 * hba was trying to abort for some reason
-			 */
-			scsicmd->result = DID_ERROR << 16 | ABORT << 8;
-			break;
-		case SRB_STATUS_PARITY_ERROR:
-			scsicmd->result = DID_PARITY << 16
-						| MSG_PARITY_ERROR << 8;
-			break;
-		case SRB_STATUS_NO_DEVICE:
-		case SRB_STATUS_INVALID_PATH_ID:
-		case SRB_STATUS_INVALID_TARGET_ID:
-		case SRB_STATUS_INVALID_LUN:
-		case SRB_STATUS_SELECTION_TIMEOUT:
-			scsicmd->result = DID_NO_CONNECT << 16
-						| COMMAND_COMPLETE << 8;
-			break;
+	/* expose physical device if expose_physicald flag is on */
+	if (scsicmd->cmnd[0] == INQUIRY && !(scsicmd->cmnd[1] & 0x01)
+	  && expose_physicals > 0)
+		aac_expose_phy_device(scsicmd);
 
-		case SRB_STATUS_COMMAND_TIMEOUT:
-		case SRB_STATUS_TIMEOUT:
-			scsicmd->result = DID_TIME_OUT << 16
-						| COMMAND_COMPLETE << 8;
-			break;
+	/*
+	 * First check the fib status
+	 */
 
-		case SRB_STATUS_BUSY:
-			scsicmd->result = DID_BUS_BUSY << 16
-						| COMMAND_COMPLETE << 8;
-			break;
+	if (le32_to_cpu(srbreply->status) != ST_OK) {
+		int len;
 
-		case SRB_STATUS_BUS_RESET:
-			scsicmd->result = DID_RESET << 16
-						| COMMAND_COMPLETE << 8;
-			break;
+		pr_warn("aac_srb_callback: srb failed, status = %d\n",
+				le32_to_cpu(srbreply->status));
+		len = min_t(u32, le32_to_cpu(srbreply->sense_data_size),
+			    SCSI_SENSE_BUFFERSIZE);
+		scsicmd->result = DID_ERROR << 16
+				| COMMAND_COMPLETE << 8
+				| SAM_STAT_CHECK_CONDITION;
+		memcpy(scsicmd->sense_buffer,
+				srbreply->sense_data, len);
+	}
 
-		case SRB_STATUS_MESSAGE_REJECTED:
+	/*
+	 * Next check the srb status
+	 */
+	switch ((le32_to_cpu(srbreply->srb_status))&0x3f) {
+	case SRB_STATUS_ERROR_RECOVERY:
+	case SRB_STATUS_PENDING:
+	case SRB_STATUS_SUCCESS:
+		scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
+		break;
+	case SRB_STATUS_DATA_OVERRUN:
+		switch (scsicmd->cmnd[0]) {
+		case  READ_6:
+		case  WRITE_6:
+		case  READ_10:
+		case  WRITE_10:
+		case  READ_12:
+		case  WRITE_12:
+		case  READ_16:
+		case  WRITE_16:
+			if (le32_to_cpu(srbreply->data_xfer_length)
+						< scsicmd->underflow)
+				pr_warn("aacraid: SCSI CMD underflow\n");
+			else
+				pr_warn("aacraid: SCSI CMD Data Overrun\n");
 			scsicmd->result = DID_ERROR << 16
-						| MESSAGE_REJECT << 8;
+					| COMMAND_COMPLETE << 8;
+			break;
+		case INQUIRY:
+			scsicmd->result = DID_OK << 16
+					| COMMAND_COMPLETE << 8;
 			break;
-		case SRB_STATUS_REQUEST_FLUSHED:
-		case SRB_STATUS_ERROR:
-		case SRB_STATUS_INVALID_REQUEST:
-		case SRB_STATUS_REQUEST_SENSE_FAILED:
-		case SRB_STATUS_NO_HBA:
-		case SRB_STATUS_UNEXPECTED_BUS_FREE:
-		case SRB_STATUS_PHASE_SEQUENCE_FAILURE:
-		case SRB_STATUS_BAD_SRB_BLOCK_LENGTH:
-		case SRB_STATUS_DELAYED_RETRY:
-		case SRB_STATUS_BAD_FUNCTION:
-		case SRB_STATUS_NOT_STARTED:
-		case SRB_STATUS_NOT_IN_USE:
-		case SRB_STATUS_FORCE_ABORT:
-		case SRB_STATUS_DOMAIN_VALIDATION_FAIL:
 		default:
+			scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
+			break;
+		}
+		break;
+	case SRB_STATUS_ABORTED:
+		scsicmd->result = DID_ABORT << 16 | ABORT << 8;
+		break;
+	case SRB_STATUS_ABORT_FAILED:
+		/*
+		 * Not sure about this one - but assuming the
+		 * hba was trying to abort for some reason
+		 */
+		scsicmd->result = DID_ERROR << 16 | ABORT << 8;
+		break;
+	case SRB_STATUS_PARITY_ERROR:
+		scsicmd->result = DID_PARITY << 16
+				| MSG_PARITY_ERROR << 8;
+		break;
+	case SRB_STATUS_NO_DEVICE:
+	case SRB_STATUS_INVALID_PATH_ID:
+	case SRB_STATUS_INVALID_TARGET_ID:
+	case SRB_STATUS_INVALID_LUN:
+	case SRB_STATUS_SELECTION_TIMEOUT:
+		scsicmd->result = DID_NO_CONNECT << 16
+				| COMMAND_COMPLETE << 8;
+		break;
+
+	case SRB_STATUS_COMMAND_TIMEOUT:
+	case SRB_STATUS_TIMEOUT:
+		scsicmd->result = DID_TIME_OUT << 16
+				| COMMAND_COMPLETE << 8;
+		break;
+
+	case SRB_STATUS_BUSY:
+		scsicmd->result = DID_BUS_BUSY << 16
+				| COMMAND_COMPLETE << 8;
+		break;
+
+	case SRB_STATUS_BUS_RESET:
+		scsicmd->result = DID_RESET << 16
+				| COMMAND_COMPLETE << 8;
+		break;
+
+	case SRB_STATUS_MESSAGE_REJECTED:
+		scsicmd->result = DID_ERROR << 16
+				| MESSAGE_REJECT << 8;
+		break;
+	case SRB_STATUS_REQUEST_FLUSHED:
+	case SRB_STATUS_ERROR:
+	case SRB_STATUS_INVALID_REQUEST:
+	case SRB_STATUS_REQUEST_SENSE_FAILED:
+	case SRB_STATUS_NO_HBA:
+	case SRB_STATUS_UNEXPECTED_BUS_FREE:
+	case SRB_STATUS_PHASE_SEQUENCE_FAILURE:
+	case SRB_STATUS_BAD_SRB_BLOCK_LENGTH:
+	case SRB_STATUS_DELAYED_RETRY:
+	case SRB_STATUS_BAD_FUNCTION:
+	case SRB_STATUS_NOT_STARTED:
+	case SRB_STATUS_NOT_IN_USE:
+	case SRB_STATUS_FORCE_ABORT:
+	case SRB_STATUS_DOMAIN_VALIDATION_FAIL:
+	default:
 #ifdef AAC_DETAILED_STATUS_INFO
-			printk(KERN_INFO "aacraid: SRB ERROR(%u) %s scsi cmd 0x%x - scsi status 0x%x\n",
-				le32_to_cpu(srbreply->srb_status) & 0x3F,
-				aac_get_status_string(
-					le32_to_cpu(srbreply->srb_status) & 0x3F),
-				scsicmd->cmnd[0],
-				le32_to_cpu(srbreply->scsi_status));
+		pr_info("aacraid: SRB ERROR(%u) %s scsi cmd 0x%x -scsi status 0x%x\n",
+			le32_to_cpu(srbreply->srb_status) & 0x3F,
+			aac_get_status_string(
+				le32_to_cpu(srbreply->srb_status) & 0x3F),
+			scsicmd->cmnd[0],
+			le32_to_cpu(srbreply->scsi_status));
 #endif
-			if ((scsicmd->cmnd[0] == ATA_12)
-				|| (scsicmd->cmnd[0] == ATA_16)) {
-					if (scsicmd->cmnd[2] & (0x01 << 5)) {
-						scsicmd->result = DID_OK << 16
-							| COMMAND_COMPLETE << 8;
-				break;
-				} else {
-					scsicmd->result = DID_ERROR << 16
-						| COMMAND_COMPLETE << 8;
-					break;
-				}
+		/*
+		 * When the CC bit is SET by the host in ATA pass thru CDB,
+		 *  driver is supposed to return DID_OK
+		 *
+		 * When the CC bit is RESET by the host, driver should
+		 *  return DID_ERROR
+		 */
+		if ((scsicmd->cmnd[0] == ATA_12)
+			|| (scsicmd->cmnd[0] == ATA_16)) {
+
+			if (scsicmd->cmnd[2] & (0x01 << 5)) {
+				scsicmd->result = DID_OK << 16
+					| COMMAND_COMPLETE << 8;
+			break;
 			} else {
 				scsicmd->result = DID_ERROR << 16
 					| COMMAND_COMPLETE << 8;
-				break;
+			break;
 			}
+		} else {
+			scsicmd->result = DID_ERROR << 16
+				| COMMAND_COMPLETE << 8;
+			break;
 		}
-		if (le32_to_cpu(srbreply->scsi_status)
-				== SAM_STAT_CHECK_CONDITION) {
-			int len;
+	}
+	if (le32_to_cpu(srbreply->scsi_status)
+			== SAM_STAT_CHECK_CONDITION) {
+		int len;
 
-			scsicmd->result |= SAM_STAT_CHECK_CONDITION;
-			len = min_t(u32, le32_to_cpu(srbreply->sense_data_size),
-				    SCSI_SENSE_BUFFERSIZE);
+		scsicmd->result |= SAM_STAT_CHECK_CONDITION;
+		len = min_t(u32, le32_to_cpu(srbreply->sense_data_size),
+			    SCSI_SENSE_BUFFERSIZE);
 #ifdef AAC_DETAILED_STATUS_INFO
-			printk(KERN_WARNING "aac_srb_callback: check condition, status = %d len=%d\n",
-						le32_to_cpu(srbreply->status), len);
+		pr_warn("aac_srb_callback: check condition, status = %d len=%d\n",
+					le32_to_cpu(srbreply->status), len);
 #endif
-			memcpy(scsicmd->sense_buffer,
-					srbreply->sense_data, len);
-		}
+		memcpy(scsicmd->sense_buffer,
+				srbreply->sense_data, len);
 	}
+
 	/*
 	 * OR in the scsi status (already shifted up a bit)
 	 */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/aacraid/aacraid.h linux-libre-4.4.107-gnu/drivers/scsi/aacraid/aacraid.h
--- linux-libre-4.4-gnu/drivers/scsi/aacraid/aacraid.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/aacraid/aacraid.h	2017-12-20 04:05:01.000000000 -0500
@@ -29,6 +29,7 @@ enum {
 #define AAC_INT_MODE_MSI		(1<<1)
 #define AAC_INT_MODE_AIF		(1<<2)
 #define AAC_INT_MODE_SYNC		(1<<3)
+#define AAC_INT_MODE_MSIX		(1<<16)
 
 #define AAC_INT_ENABLE_TYPE1_INTX	0xfffffffb
 #define AAC_INT_ENABLE_TYPE1_MSIX	0xfffffffa
@@ -944,6 +945,7 @@ struct fib {
 	 */
 	struct list_head	fiblink;
 	void			*data;
+	u32			vector_no;
 	struct hw_fib		*hw_fib_va;		/* Actual shared object */
 	dma_addr_t		hw_fib_pa;		/* physical address of hw_fib*/
 };
@@ -2113,6 +2115,7 @@ static inline unsigned int cap_to_cyls(s
 int aac_acquire_irq(struct aac_dev *dev);
 void aac_free_irq(struct aac_dev *dev);
 const char *aac_driverinfo(struct Scsi_Host *);
+void aac_fib_vector_assign(struct aac_dev *dev);
 struct fib *aac_fib_alloc(struct aac_dev *dev);
 int aac_fib_setup(struct aac_dev *dev);
 void aac_fib_map_free(struct aac_dev *dev);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/aacraid/commctrl.c linux-libre-4.4.107-gnu/drivers/scsi/aacraid/commctrl.c
--- linux-libre-4.4-gnu/drivers/scsi/aacraid/commctrl.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/aacraid/commctrl.c	2017-12-20 04:05:01.000000000 -0500
@@ -63,7 +63,7 @@ static int ioctl_send_fib(struct aac_dev
 	struct fib *fibptr;
 	struct hw_fib * hw_fib = (struct hw_fib *)0;
 	dma_addr_t hw_fib_pa = (dma_addr_t)0LL;
-	unsigned size;
+	unsigned int size, osize;
 	int retval;
 
 	if (dev->in_reset) {
@@ -87,7 +87,8 @@ static int ioctl_send_fib(struct aac_dev
 	 *	will not overrun the buffer when we copy the memory. Return
 	 *	an error if we would.
 	 */
-	size = le16_to_cpu(kfib->header.Size) + sizeof(struct aac_fibhdr);
+	osize = size = le16_to_cpu(kfib->header.Size) +
+		sizeof(struct aac_fibhdr);
 	if (size < le16_to_cpu(kfib->header.SenderSize))
 		size = le16_to_cpu(kfib->header.SenderSize);
 	if (size > dev->max_fib_size) {
@@ -118,6 +119,14 @@ static int ioctl_send_fib(struct aac_dev
 		goto cleanup;
 	}
 
+	/* Sanity check the second copy */
+	if ((osize != le16_to_cpu(kfib->header.Size) +
+		sizeof(struct aac_fibhdr))
+		|| (size < le16_to_cpu(kfib->header.SenderSize))) {
+		retval = -EINVAL;
+		goto cleanup;
+	}
+
 	if (kfib->header.Command == cpu_to_le16(TakeABreakPt)) {
 		aac_adapter_interrupt(dev);
 		/*
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/aacraid/comminit.c linux-libre-4.4.107-gnu/drivers/scsi/aacraid/comminit.c
--- linux-libre-4.4-gnu/drivers/scsi/aacraid/comminit.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/aacraid/comminit.c	2017-12-20 04:05:01.000000000 -0500
@@ -37,6 +37,7 @@
 #include <linux/spinlock.h>
 #include <linux/slab.h>
 #include <linux/blkdev.h>
+#include <linux/delay.h>
 #include <linux/completion.h>
 #include <linux/mm.h>
 #include <scsi/scsi_host.h>
@@ -47,6 +48,24 @@ struct aac_common aac_config = {
 	.irq_mod = 1
 };
 
+static inline int aac_is_msix_mode(struct aac_dev *dev)
+{
+	u32 status = 0;
+
+	if (dev->pdev->device == PMC_DEVICE_S6 ||
+		dev->pdev->device == PMC_DEVICE_S7 ||
+		dev->pdev->device == PMC_DEVICE_S8) {
+		status = src_readl(dev, MUnit.OMR);
+	}
+	return (status & AAC_INT_MODE_MSIX);
+}
+
+static inline void aac_change_to_intx(struct aac_dev *dev)
+{
+	aac_src_access_devreg(dev, AAC_DISABLE_MSIX);
+	aac_src_access_devreg(dev, AAC_ENABLE_INTX);
+}
+
 static int aac_alloc_comm(struct aac_dev *dev, void **commaddr, unsigned long commsize, unsigned long commalign)
 {
 	unsigned char *base;
@@ -425,6 +444,15 @@ struct aac_dev *aac_init_adapter(struct
 	dev->comm_interface = AAC_COMM_PRODUCER;
 	dev->raw_io_interface = dev->raw_io_64 = 0;
 
+
+	/*
+	 * Enable INTX mode, if not done already Enabled
+	 */
+	if (aac_is_msix_mode(dev)) {
+		aac_change_to_intx(dev);
+		dev_info(&dev->pdev->dev, "Changed firmware to INTX mode");
+	}
+
 	if ((!aac_adapter_sync_cmd(dev, GET_ADAPTER_PROPERTIES,
 		0, 0, 0, 0, 0, 0,
 		status+0, status+1, status+2, status+3, NULL)) &&
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/aacraid/commsup.c linux-libre-4.4.107-gnu/drivers/scsi/aacraid/commsup.c
--- linux-libre-4.4-gnu/drivers/scsi/aacraid/commsup.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/aacraid/commsup.c	2017-12-20 04:05:01.000000000 -0500
@@ -83,13 +83,38 @@ static int fib_map_alloc(struct aac_dev
 
 void aac_fib_map_free(struct aac_dev *dev)
 {
-	pci_free_consistent(dev->pdev,
-	  dev->max_fib_size * (dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB),
-	  dev->hw_fib_va, dev->hw_fib_pa);
+	if (dev->hw_fib_va && dev->max_fib_size) {
+		pci_free_consistent(dev->pdev,
+		(dev->max_fib_size *
+		(dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB)),
+		dev->hw_fib_va, dev->hw_fib_pa);
+	}
 	dev->hw_fib_va = NULL;
 	dev->hw_fib_pa = 0;
 }
 
+void aac_fib_vector_assign(struct aac_dev *dev)
+{
+	u32 i = 0;
+	u32 vector = 1;
+	struct fib *fibptr = NULL;
+
+	for (i = 0, fibptr = &dev->fibs[i];
+		i < (dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB);
+		i++, fibptr++) {
+		if ((dev->max_msix == 1) ||
+		  (i > ((dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB - 1)
+			- dev->vector_cap))) {
+			fibptr->vector_no = 0;
+		} else {
+			fibptr->vector_no = vector;
+			vector++;
+			if (vector == dev->max_msix)
+				vector = 1;
+		}
+	}
+}
+
 /**
  *	aac_fib_setup	-	setup the fibs
  *	@dev: Adapter to set up
@@ -151,6 +176,12 @@ int aac_fib_setup(struct aac_dev * dev)
 		hw_fib_pa = hw_fib_pa +
 			dev->max_fib_size + sizeof(struct aac_fib_xporthdr);
 	}
+
+	/*
+	 *Assign vector numbers to fibs
+	 */
+	aac_fib_vector_assign(dev);
+
 	/*
 	 *	Add the fib chain to the free list
 	 */
@@ -580,10 +611,10 @@ int aac_fib_send(u16 command, struct fib
 					}
 					return -EFAULT;
 				}
-				/* We used to udelay() here but that absorbed
-				 * a CPU when a timeout occured. Not very
-				 * useful. */
-				cpu_relax();
+				/*
+				 * Allow other processes / CPUS to use core
+				 */
+				schedule();
 			}
 		} else if (down_interruptible(&fibptr->event_wait)) {
 			/* Do nothing ... satisfy
@@ -1939,6 +1970,10 @@ int aac_command_thread(void *data)
 		if (difference <= 0)
 			difference = 1;
 		set_current_state(TASK_INTERRUPTIBLE);
+
+		if (kthread_should_stop())
+			break;
+
 		schedule_timeout(difference);
 
 		if (kthread_should_stop())
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/aacraid/linit.c linux-libre-4.4.107-gnu/drivers/scsi/aacraid/linit.c
--- linux-libre-4.4-gnu/drivers/scsi/aacraid/linit.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/aacraid/linit.c	2017-12-20 04:05:01.000000000 -0500
@@ -1404,8 +1404,18 @@ static int aac_acquire_resources(struct
 
 	aac_adapter_enable_int(dev);
 
-	if (!dev->sync_mode)
+	/*max msix may change  after EEH
+	 * Re-assign vectors to fibs
+	 */
+	aac_fib_vector_assign(dev);
+
+	if (!dev->sync_mode) {
+		/* After EEH recovery or suspend resume, max_msix count
+		 * may change, therfore updating in init as well.
+		 */
 		aac_adapter_start(dev);
+		dev->init->Sa_MSIXVectors = cpu_to_le32(dev->max_msix);
+	}
 	return 0;
 
 error_iounmap:
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/aacraid/src.c linux-libre-4.4.107-gnu/drivers/scsi/aacraid/src.c
--- linux-libre-4.4-gnu/drivers/scsi/aacraid/src.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/aacraid/src.c	2017-12-20 04:05:01.000000000 -0500
@@ -156,8 +156,8 @@ static irqreturn_t aac_src_intr_message(
 				break;
 			if (dev->msi_enabled && dev->max_msix > 1)
 				atomic_dec(&dev->rrq_outstanding[vector_no]);
-			aac_intr_normal(dev, handle-1, 0, isFastResponse, NULL);
 			dev->host_rrq[index++] = 0;
+			aac_intr_normal(dev, handle-1, 0, isFastResponse, NULL);
 			if (index == (vector_no + 1) * dev->vector_cap)
 				index = vector_no * dev->vector_cap;
 			dev->host_rrq_idx[vector_no] = index;
@@ -413,16 +413,23 @@ static int aac_src_check_health(struct a
 	u32 status = src_readl(dev, MUnit.OMR);
 
 	/*
+	 *	Check to see if the board panic'd.
+	 */
+	if (unlikely(status & KERNEL_PANIC))
+		goto err_blink;
+
+	/*
 	 *	Check to see if the board failed any self tests.
 	 */
 	if (unlikely(status & SELF_TEST_FAILED))
-		return -1;
+		goto err_out;
 
 	/*
-	 *	Check to see if the board panic'd.
+	 *	Check to see if the board failed any self tests.
 	 */
-	if (unlikely(status & KERNEL_PANIC))
-		return (status >> 16) & 0xFF;
+	if (unlikely(status & MONITOR_PANIC))
+		goto err_out;
+
 	/*
 	 *	Wait for the adapter to be up and running.
 	 */
@@ -432,6 +439,12 @@ static int aac_src_check_health(struct a
 	 *	Everything is OK
 	 */
 	return 0;
+
+err_out:
+	return -1;
+
+err_blink:
+	return (status > 16) & 0xFF;
 }
 
 /**
@@ -452,36 +465,20 @@ static int aac_src_deliver_message(struc
 #endif
 
 	u16 hdr_size = le16_to_cpu(fib->hw_fib_va->header.Size);
+	u16 vector_no;
 
 	atomic_inc(&q->numpending);
 
 	if (dev->msi_enabled && fib->hw_fib_va->header.Command != AifRequest &&
 	    dev->max_msix > 1) {
-		u_int16_t vector_no, first_choice = 0xffff;
-
-		vector_no = dev->fibs_pushed_no % dev->max_msix;
-		do {
-			vector_no += 1;
-			if (vector_no == dev->max_msix)
-				vector_no = 1;
-			if (atomic_read(&dev->rrq_outstanding[vector_no]) <
-			    dev->vector_cap)
-				break;
-			if (0xffff == first_choice)
-				first_choice = vector_no;
-			else if (vector_no == first_choice)
-				break;
-		} while (1);
-		if (vector_no == first_choice)
-			vector_no = 0;
-		atomic_inc(&dev->rrq_outstanding[vector_no]);
-		if (dev->fibs_pushed_no == 0xffffffff)
-			dev->fibs_pushed_no = 0;
-		else
-			dev->fibs_pushed_no++;
+		vector_no = fib->vector_no;
 		fib->hw_fib_va->header.Handle += (vector_no << 16);
+	} else {
+		vector_no = 0;
 	}
 
+	atomic_inc(&dev->rrq_outstanding[vector_no]);
+
 	if (dev->comm_interface == AAC_COMM_MESSAGE_TYPE2) {
 		/* Calculate the amount to the fibsize bits */
 		fibsize = (hdr_size + 127) / 128 - 1;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/aic7xxx/aic7xxx_osm.c linux-libre-4.4.107-gnu/drivers/scsi/aic7xxx/aic7xxx_osm.c
--- linux-libre-4.4-gnu/drivers/scsi/aic7xxx/aic7xxx_osm.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/aic7xxx/aic7xxx_osm.c	2017-12-20 04:05:01.000000000 -0500
@@ -1336,6 +1336,7 @@ ahc_platform_set_tags(struct ahc_softc *
 	case AHC_DEV_Q_TAGGED:
 		scsi_change_queue_depth(sdev,
 				dev->openings + dev->active);
+		break;
 	default:
 		/*
 		 * We allow the OS to queue 2 untagged transactions to
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/arcmsr/arcmsr_hba.c linux-libre-4.4.107-gnu/drivers/scsi/arcmsr/arcmsr_hba.c
--- linux-libre-4.4-gnu/drivers/scsi/arcmsr/arcmsr_hba.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/arcmsr/arcmsr_hba.c	2017-12-20 04:05:01.000000000 -0500
@@ -2297,15 +2297,23 @@ static int arcmsr_iop_message_xfer(struc
 	}
 	case ARCMSR_MESSAGE_WRITE_WQBUFFER: {
 		unsigned char *ver_addr;
-		int32_t user_len, cnt2end;
+		uint32_t user_len;
+		int32_t cnt2end;
 		uint8_t *pQbuffer, *ptmpuserbuffer;
+
+		user_len = pcmdmessagefld->cmdmessage.Length;
+		if (user_len > ARCMSR_API_DATA_BUFLEN) {
+			retvalue = ARCMSR_MESSAGE_FAIL;
+			goto message_out;
+		}
+
 		ver_addr = kmalloc(ARCMSR_API_DATA_BUFLEN, GFP_ATOMIC);
 		if (!ver_addr) {
 			retvalue = ARCMSR_MESSAGE_FAIL;
 			goto message_out;
 		}
 		ptmpuserbuffer = ver_addr;
-		user_len = pcmdmessagefld->cmdmessage.Length;
+
 		memcpy(ptmpuserbuffer,
 			pcmdmessagefld->messagedatabuffer, user_len);
 		spin_lock_irqsave(&acb->wqbuffer_lock, flags);
@@ -2537,18 +2545,9 @@ static int arcmsr_queue_command_lck(stru
 	struct AdapterControlBlock *acb = (struct AdapterControlBlock *) host->hostdata;
 	struct CommandControlBlock *ccb;
 	int target = cmd->device->id;
-	int lun = cmd->device->lun;
-	uint8_t scsicmd = cmd->cmnd[0];
 	cmd->scsi_done = done;
 	cmd->host_scribble = NULL;
 	cmd->result = 0;
-	if ((scsicmd == SYNCHRONIZE_CACHE) ||(scsicmd == SEND_DIAGNOSTIC)){
-		if(acb->devstate[target][lun] == ARECA_RAID_GONE) {
-    			cmd->result = (DID_NO_CONNECT << 16);
-		}
-		cmd->scsi_done(cmd);
-		return 0;
-	}
 	if (target == 16) {
 		/* virtual device for iop message transfer */
 		arcmsr_handle_virtual_command(acb, cmd);
@@ -2664,7 +2663,7 @@ static bool arcmsr_hbaB_get_config(struc
 	if (!arcmsr_hbaB_wait_msgint_ready(acb)) {
 		printk(KERN_NOTICE "arcmsr%d: wait 'get adapter firmware \
 			miscellaneous data' timeout \n", acb->host->host_no);
-		return false;
+		goto err_free_dma;
 	}
 	count = 8;
 	while (count){
@@ -2694,19 +2693,23 @@ static bool arcmsr_hbaB_get_config(struc
 		acb->firm_model,
 		acb->firm_version);
 
-	acb->signature = readl(&reg->message_rwbuffer[1]);
+	acb->signature = readl(&reg->message_rwbuffer[0]);
 	/*firm_signature,1,00-03*/
-	acb->firm_request_len = readl(&reg->message_rwbuffer[2]);
+	acb->firm_request_len = readl(&reg->message_rwbuffer[1]);
 	/*firm_request_len,1,04-07*/
-	acb->firm_numbers_queue = readl(&reg->message_rwbuffer[3]);
+	acb->firm_numbers_queue = readl(&reg->message_rwbuffer[2]);
 	/*firm_numbers_queue,2,08-11*/
-	acb->firm_sdram_size = readl(&reg->message_rwbuffer[4]);
+	acb->firm_sdram_size = readl(&reg->message_rwbuffer[3]);
 	/*firm_sdram_size,3,12-15*/
-	acb->firm_hd_channels = readl(&reg->message_rwbuffer[5]);
+	acb->firm_hd_channels = readl(&reg->message_rwbuffer[4]);
 	/*firm_ide_channels,4,16-19*/
 	acb->firm_cfg_version = readl(&reg->message_rwbuffer[25]);  /*firm_cfg_version,25,100-103*/
 	/*firm_ide_channels,4,16-19*/
 	return true;
+err_free_dma:
+	dma_free_coherent(&acb->pdev->dev, acb->roundup_ccbsize,
+			acb->dma_coherent2, acb->dma_coherent_handle2);
+	return false;
 }
 
 static bool arcmsr_hbaC_get_config(struct AdapterControlBlock *pACB)
@@ -2880,15 +2883,15 @@ static bool arcmsr_hbaD_get_config(struc
 		iop_device_map++;
 		count--;
 	}
-	acb->signature = readl(&reg->msgcode_rwbuffer[1]);
+	acb->signature = readl(&reg->msgcode_rwbuffer[0]);
 	/*firm_signature,1,00-03*/
-	acb->firm_request_len = readl(&reg->msgcode_rwbuffer[2]);
+	acb->firm_request_len = readl(&reg->msgcode_rwbuffer[1]);
 	/*firm_request_len,1,04-07*/
-	acb->firm_numbers_queue = readl(&reg->msgcode_rwbuffer[3]);
+	acb->firm_numbers_queue = readl(&reg->msgcode_rwbuffer[2]);
 	/*firm_numbers_queue,2,08-11*/
-	acb->firm_sdram_size = readl(&reg->msgcode_rwbuffer[4]);
+	acb->firm_sdram_size = readl(&reg->msgcode_rwbuffer[3]);
 	/*firm_sdram_size,3,12-15*/
-	acb->firm_hd_channels = readl(&reg->msgcode_rwbuffer[5]);
+	acb->firm_hd_channels = readl(&reg->msgcode_rwbuffer[4]);
 	/*firm_hd_channels,4,16-19*/
 	acb->firm_cfg_version = readl(&reg->msgcode_rwbuffer[25]);
 	pr_notice("Areca RAID Controller%d: Model %s, F/W %s\n",
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/be2iscsi/be_main.c linux-libre-4.4.107-gnu/drivers/scsi/be2iscsi/be_main.c
--- linux-libre-4.4-gnu/drivers/scsi/be2iscsi/be_main.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/be2iscsi/be_main.c	2017-12-20 04:05:01.000000000 -0500
@@ -4470,6 +4470,7 @@ put_shost:
 	scsi_host_put(phba->shost);
 free_kset:
 	iscsi_boot_destroy_kset(phba->boot_kset);
+	phba->boot_kset = NULL;
 	return -ENOMEM;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/bfa/bfad_debugfs.c linux-libre-4.4.107-gnu/drivers/scsi/bfa/bfad_debugfs.c
--- linux-libre-4.4-gnu/drivers/scsi/bfa/bfad_debugfs.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/bfa/bfad_debugfs.c	2017-12-20 04:05:01.000000000 -0500
@@ -254,7 +254,8 @@ bfad_debugfs_write_regrd(struct file *fi
 	struct bfad_s *bfad = port->bfad;
 	struct bfa_s *bfa = &bfad->bfa;
 	struct bfa_ioc_s *ioc = &bfa->ioc;
-	int addr, len, rc, i;
+	int addr, rc, i;
+	u32 len;
 	u32 *regbuf;
 	void __iomem *rb, *reg_addr;
 	unsigned long flags;
@@ -265,7 +266,7 @@ bfad_debugfs_write_regrd(struct file *fi
 		return PTR_ERR(kern_buf);
 
 	rc = sscanf(kern_buf, "%x:%x", &addr, &len);
-	if (rc < 2) {
+	if (rc < 2 || len > (UINT_MAX >> 2)) {
 		printk(KERN_INFO
 			"bfad[%d]: %s failed to read user buf\n",
 			bfad->inst_no, __func__);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/constants.c linux-libre-4.4.107-gnu/drivers/scsi/constants.c
--- linux-libre-4.4-gnu/drivers/scsi/constants.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/constants.c	2017-12-20 04:05:01.000000000 -0500
@@ -1181,8 +1181,9 @@ static const char * const snstext[] = {
 
 /* Get sense key string or NULL if not available */
 const char *
-scsi_sense_key_string(unsigned char key) {
-	if (key <= 0xE)
+scsi_sense_key_string(unsigned char key)
+{
+	if (key < ARRAY_SIZE(snstext))
 		return snstext[key];
 	return NULL;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/cxlflash/common.h linux-libre-4.4.107-gnu/drivers/scsi/cxlflash/common.h
--- linux-libre-4.4-gnu/drivers/scsi/cxlflash/common.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/cxlflash/common.h	2017-12-20 04:05:01.000000000 -0500
@@ -34,7 +34,6 @@ extern const struct file_operations cxlf
 								   sectors
 								*/
 
-#define NUM_RRQ_ENTRY    16     /* for master issued cmds */
 #define MAX_RHT_PER_CONTEXT (PAGE_SIZE / sizeof(struct sisl_rht_entry))
 
 /* AFU command retry limit */
@@ -48,9 +47,12 @@ extern const struct file_operations cxlf
 							   index derivation
 							 */
 
-#define CXLFLASH_MAX_CMDS               16
+#define CXLFLASH_MAX_CMDS               256
 #define CXLFLASH_MAX_CMDS_PER_LUN       CXLFLASH_MAX_CMDS
 
+/* RRQ for master issued cmds */
+#define NUM_RRQ_ENTRY                   CXLFLASH_MAX_CMDS
+
 
 static inline void check_sizes(void)
 {
@@ -149,7 +151,7 @@ struct afu_cmd {
 struct afu {
 	/* Stuff requiring alignment go first. */
 
-	u64 rrq_entry[NUM_RRQ_ENTRY];	/* 128B RRQ */
+	u64 rrq_entry[NUM_RRQ_ENTRY];	/* 2K RRQ */
 	/*
 	 * Command & data for AFU commands.
 	 */
@@ -165,6 +167,8 @@ struct afu {
 	struct sisl_host_map __iomem *host_map;		/* MC host map */
 	struct sisl_ctrl_map __iomem *ctrl_map;		/* MC control map */
 
+	struct kref mapcount;
+
 	ctx_hndl_t ctx_hndl;	/* master's context handle */
 	u64 *hrrq_start;
 	u64 *hrrq_end;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/cxlflash/main.c linux-libre-4.4.107-gnu/drivers/scsi/cxlflash/main.c
--- linux-libre-4.4-gnu/drivers/scsi/cxlflash/main.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/cxlflash/main.c	2017-12-20 04:05:01.000000000 -0500
@@ -289,7 +289,7 @@ static void context_reset(struct afu_cmd
 		atomic64_set(&afu->room, room);
 		if (room)
 			goto write_rrin;
-		udelay(nretry);
+		udelay(1 << nretry);
 	} while (nretry++ < MC_ROOM_RETRY_CNT);
 
 	pr_err("%s: no cmd_room to send reset\n", __func__);
@@ -303,7 +303,7 @@ write_rrin:
 		if (rrin != 0x1)
 			break;
 		/* Double delay each time */
-		udelay(2 << nretry);
+		udelay(1 << nretry);
 	} while (nretry++ < MC_ROOM_RETRY_CNT);
 }
 
@@ -338,7 +338,7 @@ retry:
 			atomic64_set(&afu->room, room);
 			if (room)
 				goto write_ioarrin;
-			udelay(nretry);
+			udelay(1 << nretry);
 		} while (nretry++ < MC_ROOM_RETRY_CNT);
 
 		dev_err(dev, "%s: no cmd_room to send 0x%X\n",
@@ -352,7 +352,7 @@ retry:
 		 * afu->room.
 		 */
 		if (nretry++ < MC_ROOM_RETRY_CNT) {
-			udelay(nretry);
+			udelay(1 << nretry);
 			goto retry;
 		}
 
@@ -368,6 +368,7 @@ out:
 
 no_room:
 	afu->read_room = true;
+	kref_get(&cfg->afu->mapcount);
 	schedule_work(&cfg->work_q);
 	rc = SCSI_MLQUEUE_HOST_BUSY;
 	goto out;
@@ -473,6 +474,16 @@ out:
 	return rc;
 }
 
+static void afu_unmap(struct kref *ref)
+{
+	struct afu *afu = container_of(ref, struct afu, mapcount);
+
+	if (likely(afu->afu_map)) {
+		cxl_psa_unmap((void __iomem *)afu->afu_map);
+		afu->afu_map = NULL;
+	}
+}
+
 /**
  * cxlflash_driver_info() - information handler for this host driver
  * @host:	SCSI host associated with device.
@@ -503,6 +514,7 @@ static int cxlflash_queuecommand(struct
 	ulong lock_flags;
 	short lflag = 0;
 	int rc = 0;
+	int kref_got = 0;
 
 	dev_dbg_ratelimited(dev, "%s: (scp=%p) %d/%d/%d/%llu "
 			    "cdb=(%08X-%08X-%08X-%08X)\n",
@@ -547,6 +559,9 @@ static int cxlflash_queuecommand(struct
 		goto out;
 	}
 
+	kref_get(&cfg->afu->mapcount);
+	kref_got = 1;
+
 	cmd->rcb.ctx_id = afu->ctx_hndl;
 	cmd->rcb.port_sel = port_sel;
 	cmd->rcb.lun_id = lun_to_lunid(scp->device->lun);
@@ -587,6 +602,8 @@ static int cxlflash_queuecommand(struct
 	}
 
 out:
+	if (kref_got)
+		kref_put(&afu->mapcount, afu_unmap);
 	pr_devel("%s: returning rc=%d\n", __func__, rc);
 	return rc;
 }
@@ -632,20 +649,36 @@ static void free_mem(struct cxlflash_cfg
  * @cfg:	Internal structure associated with the host.
  *
  * Safe to call with AFU in a partially allocated/initialized state.
+ *
+ * Cleans up all state associated with the command queue, and unmaps
+ * the MMIO space.
+ *
+ *  - complete() will take care of commands we initiated (they'll be checked
+ *  in as part of the cleanup that occurs after the completion)
+ *
+ *  - cmd_checkin() will take care of entries that we did not initiate and that
+ *  have not (and will not) complete because they are sitting on a [now stale]
+ *  hardware queue
  */
 static void stop_afu(struct cxlflash_cfg *cfg)
 {
 	int i;
 	struct afu *afu = cfg->afu;
+	struct afu_cmd *cmd;
 
 	if (likely(afu)) {
-		for (i = 0; i < CXLFLASH_NUM_CMDS; i++)
-			complete(&afu->cmd[i].cevent);
+		for (i = 0; i < CXLFLASH_NUM_CMDS; i++) {
+			cmd = &afu->cmd[i];
+			complete(&cmd->cevent);
+			if (!atomic_read(&cmd->free))
+				cmd_checkin(cmd);
+		}
 
 		if (likely(afu->afu_map)) {
 			cxl_psa_unmap((void __iomem *)afu->afu_map);
 			afu->afu_map = NULL;
 		}
+		kref_put(&afu->mapcount, afu_unmap);
 	}
 }
 
@@ -731,8 +764,8 @@ static void cxlflash_remove(struct pci_d
 		scsi_remove_host(cfg->host);
 		/* fall through */
 	case INIT_STATE_AFU:
-		term_afu(cfg);
 		cancel_work_sync(&cfg->work_q);
+		term_afu(cfg);
 	case INIT_STATE_PCI:
 		pci_release_regions(cfg->dev);
 		pci_disable_device(pdev);
@@ -963,6 +996,8 @@ static int wait_port_online(__be64 __iom
 	do {
 		msleep(delay_us / 1000);
 		status = readq_be(&fc_regs[FC_MTIP_STATUS / 8]);
+		if (status == U64_MAX)
+			nretry /= 2;
 	} while ((status & FC_MTIP_STATUS_MASK) != FC_MTIP_STATUS_ONLINE &&
 		 nretry--);
 
@@ -994,6 +1029,8 @@ static int wait_port_offline(__be64 __io
 	do {
 		msleep(delay_us / 1000);
 		status = readq_be(&fc_regs[FC_MTIP_STATUS / 8]);
+		if (status == U64_MAX)
+			nretry /= 2;
 	} while ((status & FC_MTIP_STATUS_MASK) != FC_MTIP_STATUS_OFFLINE &&
 		 nretry--);
 
@@ -1104,15 +1141,15 @@ static const struct asyc_intr_info ainfo
 	{SISL_ASTATUS_FC0_LOGI_F, "login failed", 0, CLR_FC_ERROR},
 	{SISL_ASTATUS_FC0_LOGI_S, "login succeeded", 0, SCAN_HOST},
 	{SISL_ASTATUS_FC0_LINK_DN, "link down", 0, 0},
-	{SISL_ASTATUS_FC0_LINK_UP, "link up", 0, SCAN_HOST},
+	{SISL_ASTATUS_FC0_LINK_UP, "link up", 0, 0},
 	{SISL_ASTATUS_FC1_OTHER, "other error", 1, CLR_FC_ERROR | LINK_RESET},
 	{SISL_ASTATUS_FC1_LOGO, "target initiated LOGO", 1, 0},
 	{SISL_ASTATUS_FC1_CRC_T, "CRC threshold exceeded", 1, LINK_RESET},
-	{SISL_ASTATUS_FC1_LOGI_R, "login timed out, retrying", 1, 0},
+	{SISL_ASTATUS_FC1_LOGI_R, "login timed out, retrying", 1, LINK_RESET},
 	{SISL_ASTATUS_FC1_LOGI_F, "login failed", 1, CLR_FC_ERROR},
 	{SISL_ASTATUS_FC1_LOGI_S, "login succeeded", 1, SCAN_HOST},
 	{SISL_ASTATUS_FC1_LINK_DN, "link down", 1, 0},
-	{SISL_ASTATUS_FC1_LINK_UP, "link up", 1, SCAN_HOST},
+	{SISL_ASTATUS_FC1_LINK_UP, "link up", 1, 0},
 	{0x0, "", 0, 0}		/* terminator */
 };
 
@@ -1316,6 +1353,7 @@ static irqreturn_t cxlflash_async_err_ir
 				__func__, port);
 			cfg->lr_state = LINK_RESET_REQUIRED;
 			cfg->lr_port = port;
+			kref_get(&cfg->afu->mapcount);
 			schedule_work(&cfg->work_q);
 		}
 
@@ -1336,6 +1374,7 @@ static irqreturn_t cxlflash_async_err_ir
 
 		if (info->action & SCAN_HOST) {
 			atomic_inc(&cfg->scan_host_needed);
+			kref_get(&cfg->afu->mapcount);
 			schedule_work(&cfg->work_q);
 		}
 	}
@@ -1731,6 +1770,7 @@ static int init_afu(struct cxlflash_cfg
 		rc = -ENOMEM;
 		goto err1;
 	}
+	kref_init(&afu->mapcount);
 
 	/* No byte reverse on reading afu_version or string will be backwards */
 	reg = readq(&afu->afu_map->global.regs.afu_version);
@@ -1765,8 +1805,7 @@ out:
 	return rc;
 
 err2:
-	cxl_psa_unmap((void __iomem *)afu->afu_map);
-	afu->afu_map = NULL;
+	kref_put(&afu->mapcount, afu_unmap);
 err1:
 	term_mc(cfg, UNDO_START);
 	goto out;
@@ -1927,6 +1966,11 @@ retry:
  * cxlflash_eh_host_reset_handler() - reset the host adapter
  * @scp:	SCSI command from stack identifying host.
  *
+ * Following a reset, the state is evaluated again in case an EEH occurred
+ * during the reset. In such a scenario, the host reset will either yield
+ * until the EEH recovery is complete or return success or failure based
+ * upon the current device state.
+ *
  * Return:
  *	SUCCESS as defined in scsi/scsi.h
  *	FAILED as defined in scsi/scsi.h
@@ -1958,7 +2002,8 @@ static int cxlflash_eh_host_reset_handle
 		} else
 			cfg->state = STATE_NORMAL;
 		wake_up_all(&cfg->reset_waitq);
-		break;
+		ssleep(1);
+		/* fall through */
 	case STATE_RESET:
 		wait_event(cfg->reset_waitq, cfg->state != STATE_RESET);
 		if (cfg->state == STATE_NORMAL)
@@ -2114,6 +2159,16 @@ static ssize_t lun_mode_store(struct dev
 	rc = kstrtouint(buf, 10, &lun_mode);
 	if (!rc && (lun_mode < 5) && (lun_mode != afu->internal_lun)) {
 		afu->internal_lun = lun_mode;
+
+		/*
+		 * When configured for internal LUN, there is only one channel,
+		 * channel number 0, else there will be 2 (default).
+		 */
+		if (afu->internal_lun)
+			shost->max_channel = 0;
+		else
+			shost->max_channel = NUM_FC_PORTS - 1;
+
 		afu_reset(cfg);
 		scsi_scan_host(cfg->host);
 	}
@@ -2260,7 +2315,7 @@ static struct scsi_host_template driver_
 	.eh_device_reset_handler = cxlflash_eh_device_reset_handler,
 	.eh_host_reset_handler = cxlflash_eh_host_reset_handler,
 	.change_queue_depth = cxlflash_change_queue_depth,
-	.cmd_per_lun = 16,
+	.cmd_per_lun = CXLFLASH_MAX_CMDS_PER_LUN,
 	.can_queue = CXLFLASH_MAX_CMDS,
 	.this_id = -1,
 	.sg_tablesize = SG_NONE,	/* No scatter gather support */
@@ -2274,6 +2329,7 @@ static struct scsi_host_template driver_
  * Device dependent values
  */
 static struct dev_dependent_vals dev_corsa_vals = { CXLFLASH_MAX_SECTORS };
+static struct dev_dependent_vals dev_flash_gt_vals = { CXLFLASH_MAX_SECTORS };
 
 /*
  * PCI device binding table
@@ -2281,6 +2337,8 @@ static struct dev_dependent_vals dev_cor
 static struct pci_device_id cxlflash_pci_table[] = {
 	{PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CORSA,
 	 PCI_ANY_ID, PCI_ANY_ID, 0, 0, (kernel_ulong_t)&dev_corsa_vals},
+	{PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_FLASH_GT,
+	 PCI_ANY_ID, PCI_ANY_ID, 0, 0, (kernel_ulong_t)&dev_flash_gt_vals},
 	{}
 };
 
@@ -2339,6 +2397,7 @@ static void cxlflash_worker_thread(struc
 
 	if (atomic_dec_if_positive(&cfg->scan_host_needed) >= 0)
 		scsi_scan_host(cfg->host);
+	kref_put(&afu->mapcount, afu_unmap);
 }
 
 /**
@@ -2485,6 +2544,9 @@ static void drain_ioctls(struct cxlflash
  * @pdev:	PCI device struct.
  * @state:	PCI channel state.
  *
+ * When an EEH occurs during an active reset, wait until the reset is
+ * complete and then take action based upon the device state.
+ *
  * Return: PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT
  */
 static pci_ers_result_t cxlflash_pci_error_detected(struct pci_dev *pdev,
@@ -2498,6 +2560,10 @@ static pci_ers_result_t cxlflash_pci_err
 
 	switch (state) {
 	case pci_channel_io_frozen:
+		wait_event(cfg->reset_waitq, cfg->state != STATE_RESET);
+		if (cfg->state == STATE_FAILTERM)
+			return PCI_ERS_RESULT_DISCONNECT;
+
 		cfg->state = STATE_RESET;
 		scsi_block_requests(cfg->host);
 		drain_ioctls(cfg);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/cxlflash/main.h linux-libre-4.4.107-gnu/drivers/scsi/cxlflash/main.h
--- linux-libre-4.4-gnu/drivers/scsi/cxlflash/main.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/cxlflash/main.h	2017-12-20 04:05:01.000000000 -0500
@@ -24,8 +24,8 @@
 #define CXLFLASH_ADAPTER_NAME	"IBM POWER CXL Flash Adapter"
 #define CXLFLASH_DRIVER_DATE	"(August 13, 2015)"
 
-#define PCI_DEVICE_ID_IBM_CORSA	0x04F0
-#define CXLFLASH_SUBS_DEV_ID	0x04F0
+#define PCI_DEVICE_ID_IBM_CORSA		0x04F0
+#define PCI_DEVICE_ID_IBM_FLASH_GT	0x0600
 
 /* Since there is only one target, make it 0 */
 #define CXLFLASH_TARGET		0
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/cxlflash/superpipe.c linux-libre-4.4.107-gnu/drivers/scsi/cxlflash/superpipe.c
--- linux-libre-4.4-gnu/drivers/scsi/cxlflash/superpipe.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/cxlflash/superpipe.c	2017-12-20 04:05:01.000000000 -0500
@@ -1380,7 +1380,7 @@ static int cxlflash_disk_attach(struct s
 	}
 
 	ctxid = cxl_process_element(ctx);
-	if (unlikely((ctxid > MAX_CONTEXT) || (ctxid < 0))) {
+	if (unlikely((ctxid >= MAX_CONTEXT) || (ctxid < 0))) {
 		dev_err(dev, "%s: ctxid (%d) invalid!\n", __func__, ctxid);
 		rc = -EPERM;
 		goto err2;
@@ -1508,7 +1508,7 @@ static int recover_context(struct cxlfla
 	}
 
 	ctxid = cxl_process_element(ctx);
-	if (unlikely((ctxid > MAX_CONTEXT) || (ctxid < 0))) {
+	if (unlikely((ctxid >= MAX_CONTEXT) || (ctxid < 0))) {
 		dev_err(dev, "%s: ctxid (%d) invalid!\n", __func__, ctxid);
 		rc = -EPERM;
 		goto err1;
@@ -1590,6 +1590,13 @@ err1:
  * place at the same time and the failure was due to CXL services being
  * unable to keep up.
  *
+ * As this routine is called on ioctl context, it holds the ioctl r/w
+ * semaphore that is used to drain ioctls in recovery scenarios. The
+ * implementation to achieve the pacing described above (a local mutex)
+ * requires that the ioctl r/w semaphore be dropped and reacquired to
+ * avoid a 3-way deadlock when multiple process recoveries operate in
+ * parallel.
+ *
  * Because a user can detect an error condition before the kernel, it is
  * quite possible for this routine to act as the kernel's EEH detection
  * source (MMIO read of mbox_r). Because of this, there is a window of
@@ -1617,9 +1624,17 @@ static int cxlflash_afu_recover(struct s
 	int rc = 0;
 
 	atomic_inc(&cfg->recovery_threads);
+	up_read(&cfg->ioctl_rwsem);
 	rc = mutex_lock_interruptible(mutex);
+	down_read(&cfg->ioctl_rwsem);
 	if (rc)
 		goto out;
+	rc = check_state(cfg);
+	if (rc) {
+		dev_err(dev, "%s: Failed state! rc=%d\n", __func__, rc);
+		rc = -ENODEV;
+		goto out;
+	}
 
 	dev_dbg(dev, "%s: reason 0x%016llX rctxid=%016llX\n",
 		__func__, recover->reason, rctxid);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/cxlflash/vlun.c linux-libre-4.4.107-gnu/drivers/scsi/cxlflash/vlun.c
--- linux-libre-4.4-gnu/drivers/scsi/cxlflash/vlun.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/cxlflash/vlun.c	2017-12-20 04:05:01.000000000 -0500
@@ -1008,6 +1008,8 @@ int cxlflash_disk_virtual_open(struct sc
 	virt->last_lba = last_lba;
 	virt->rsrc_handle = rsrc_handle;
 
+	if (lli->port_sel == BOTH_PORTS)
+		virt->hdr.return_flags |= DK_CXLFLASH_ALL_PORTS_ACTIVE;
 out:
 	if (likely(ctxi))
 		put_context(ctxi);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/device_handler/Kconfig linux-libre-4.4.107-gnu/drivers/scsi/device_handler/Kconfig
--- linux-libre-4.4-gnu/drivers/scsi/device_handler/Kconfig	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/device_handler/Kconfig	2017-12-20 04:05:01.000000000 -0500
@@ -13,13 +13,13 @@ menuconfig SCSI_DH
 
 config SCSI_DH_RDAC
 	tristate "LSI RDAC Device Handler"
-	depends on SCSI_DH
+	depends on SCSI_DH && SCSI
 	help
 	If you have a LSI RDAC select y. Otherwise, say N.
 
 config SCSI_DH_HP_SW
 	tristate "HP/COMPAQ MSA Device Handler"
-	depends on SCSI_DH
+	depends on SCSI_DH && SCSI
 	help
 	If you have a HP/COMPAQ MSA device that requires START_STOP to
 	be sent to start it and cannot upgrade the firmware then select y.
@@ -27,13 +27,13 @@ config SCSI_DH_HP_SW
 
 config SCSI_DH_EMC
 	tristate "EMC CLARiiON Device Handler"
-	depends on SCSI_DH
+	depends on SCSI_DH && SCSI
 	help
 	If you have a EMC CLARiiON select y. Otherwise, say N.
 
 config SCSI_DH_ALUA
 	tristate "SPC-3 ALUA Device Handler"
-	depends on SCSI_DH
+	depends on SCSI_DH && SCSI
 	help
 	  SCSI Device handler for generic SPC-3 Asymmetric Logical Unit
 	  Access (ALUA).
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/device_handler/scsi_dh_emc.c linux-libre-4.4.107-gnu/drivers/scsi/device_handler/scsi_dh_emc.c
--- linux-libre-4.4-gnu/drivers/scsi/device_handler/scsi_dh_emc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/device_handler/scsi_dh_emc.c	2017-12-20 04:05:01.000000000 -0500
@@ -456,7 +456,7 @@ static int clariion_prep_fn(struct scsi_
 static int clariion_std_inquiry(struct scsi_device *sdev,
 				struct clariion_dh_data *csdev)
 {
-	int err;
+	int err = SCSI_DH_OK;
 	char *sp_model;
 
 	err = send_inquiry_cmd(sdev, 0, csdev);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/device_handler/scsi_dh_rdac.c linux-libre-4.4.107-gnu/drivers/scsi/device_handler/scsi_dh_rdac.c
--- linux-libre-4.4-gnu/drivers/scsi/device_handler/scsi_dh_rdac.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/device_handler/scsi_dh_rdac.c	2017-12-20 04:05:01.000000000 -0500
@@ -562,7 +562,7 @@ static int mode_select_handle_sense(stru
 			/*
 			 * Command Lock contention
 			 */
-			err = SCSI_DH_RETRY;
+			err = SCSI_DH_IMM_RETRY;
 		break;
 	default:
 		break;
@@ -612,6 +612,8 @@ retry:
 		err = mode_select_handle_sense(sdev, h->sense);
 		if (err == SCSI_DH_RETRY && retry_cnt--)
 			goto retry;
+		if (err == SCSI_DH_IMM_RETRY)
+			goto retry;
 	}
 	if (err == SCSI_DH_OK) {
 		h->state = RDAC_STATE_ACTIVE;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/fnic/fnic_fcs.c linux-libre-4.4.107-gnu/drivers/scsi/fnic/fnic_fcs.c
--- linux-libre-4.4-gnu/drivers/scsi/fnic/fnic_fcs.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/fnic/fnic_fcs.c	2017-12-20 04:05:01.000000000 -0500
@@ -954,8 +954,8 @@ int fnic_alloc_rq_frame(struct vnic_rq *
 	skb_put(skb, len);
 	pa = pci_map_single(fnic->pdev, skb->data, len, PCI_DMA_FROMDEVICE);
 
-	r = pci_dma_mapping_error(fnic->pdev, pa);
-	if (r) {
+	if (pci_dma_mapping_error(fnic->pdev, pa)) {
+		r = -ENOMEM;
 		printk(KERN_ERR "PCI mapping failed with error %d\n", r);
 		goto free_skb;
 	}
@@ -1093,8 +1093,8 @@ static int fnic_send_frame(struct fnic *
 
 	pa = pci_map_single(fnic->pdev, eth_hdr, tot_len, PCI_DMA_TODEVICE);
 
-	ret = pci_dma_mapping_error(fnic->pdev, pa);
-	if (ret) {
+	if (pci_dma_mapping_error(fnic->pdev, pa)) {
+		ret = -ENOMEM;
 		printk(KERN_ERR "DMA map failed with error %d\n", ret);
 		goto free_skb_on_err;
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/fnic/fnic.h linux-libre-4.4.107-gnu/drivers/scsi/fnic/fnic.h
--- linux-libre-4.4-gnu/drivers/scsi/fnic/fnic.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/fnic/fnic.h	2017-12-20 04:05:01.000000000 -0500
@@ -248,6 +248,7 @@ struct fnic {
 	struct completion *remove_wait; /* device remove thread blocks */
 
 	atomic_t in_flight;		/* io counter */
+	bool internal_reset_inprogress;
 	u32 _reserved;			/* fill hole */
 	unsigned long state_flags;	/* protected by host lock */
 	enum fnic_state state;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/fnic/fnic_scsi.c linux-libre-4.4.107-gnu/drivers/scsi/fnic/fnic_scsi.c
--- linux-libre-4.4-gnu/drivers/scsi/fnic/fnic_scsi.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/fnic/fnic_scsi.c	2017-12-20 04:05:01.000000000 -0500
@@ -2533,6 +2533,19 @@ int fnic_host_reset(struct scsi_cmnd *sc
 	unsigned long wait_host_tmo;
 	struct Scsi_Host *shost = sc->device->host;
 	struct fc_lport *lp = shost_priv(shost);
+	struct fnic *fnic = lport_priv(lp);
+	unsigned long flags;
+
+	spin_lock_irqsave(&fnic->fnic_lock, flags);
+	if (fnic->internal_reset_inprogress == 0) {
+		fnic->internal_reset_inprogress = 1;
+	} else {
+		spin_unlock_irqrestore(&fnic->fnic_lock, flags);
+		FNIC_SCSI_DBG(KERN_DEBUG, fnic->lport->host,
+			"host reset in progress skipping another host reset\n");
+		return SUCCESS;
+	}
+	spin_unlock_irqrestore(&fnic->fnic_lock, flags);
 
 	/*
 	 * If fnic_reset is successful, wait for fabric login to complete
@@ -2553,6 +2566,9 @@ int fnic_host_reset(struct scsi_cmnd *sc
 		}
 	}
 
+	spin_lock_irqsave(&fnic->fnic_lock, flags);
+	fnic->internal_reset_inprogress = 0;
+	spin_unlock_irqrestore(&fnic->fnic_lock, flags);
 	return ret;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/hpsa.c linux-libre-4.4.107-gnu/drivers/scsi/hpsa.c
--- linux-libre-4.4-gnu/drivers/scsi/hpsa.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/hpsa.c	2017-12-20 04:05:01.000000000 -0500
@@ -3466,7 +3466,7 @@ exit_failed:
  *  # (integer code indicating one of several NOT READY states
  *     describing why a volume is to be kept offline)
  */
-static int hpsa_volume_offline(struct ctlr_info *h,
+static unsigned char hpsa_volume_offline(struct ctlr_info *h,
 					unsigned char scsi3addr[])
 {
 	struct CommandList *c;
@@ -3486,7 +3486,7 @@ static int hpsa_volume_offline(struct ct
 	rc = hpsa_scsi_do_simple_cmd(h, c, DEFAULT_REPLY_QUEUE, NO_TIMEOUT);
 	if (rc) {
 		cmd_free(h, c);
-		return 0;
+		return HPSA_VPD_LV_STATUS_UNSUPPORTED;
 	}
 	sense = c->err_info->SenseInfo;
 	if (c->err_info->SenseLen > sizeof(c->err_info->SenseInfo))
@@ -3497,19 +3497,13 @@ static int hpsa_volume_offline(struct ct
 	cmd_status = c->err_info->CommandStatus;
 	scsi_status = c->err_info->ScsiStatus;
 	cmd_free(h, c);
-	/* Is the volume 'not ready'? */
-	if (cmd_status != CMD_TARGET_STATUS ||
-		scsi_status != SAM_STAT_CHECK_CONDITION ||
-		sense_key != NOT_READY ||
-		asc != ASC_LUN_NOT_READY)  {
-		return 0;
-	}
 
 	/* Determine the reason for not ready state */
 	ldstat = hpsa_get_volume_status(h, scsi3addr);
 
 	/* Keep volume offline in certain cases: */
 	switch (ldstat) {
+	case HPSA_LV_FAILED:
 	case HPSA_LV_UNDERGOING_ERASE:
 	case HPSA_LV_NOT_AVAILABLE:
 	case HPSA_LV_UNDERGOING_RPI:
@@ -3531,7 +3525,7 @@ static int hpsa_volume_offline(struct ct
 	default:
 		break;
 	}
-	return 0;
+	return HPSA_LV_OK;
 }
 
 /*
@@ -3615,10 +3609,10 @@ static int hpsa_update_device_info(struc
 	/* Do an inquiry to the device to see what it is. */
 	if (hpsa_scsi_do_inquiry(h, scsi3addr, 0, inq_buff,
 		(unsigned char) OBDR_TAPE_INQ_SIZE) != 0) {
-		/* Inquiry failed (msg printed already) */
 		dev_err(&h->pdev->dev,
-			"hpsa_update_device_info: inquiry failed\n");
-		rc = -EIO;
+			"%s: inquiry failed, device will be skipped.\n",
+			__func__);
+		rc = HPSA_INQUIRY_FAILED;
 		goto bail_out;
 	}
 
@@ -3638,15 +3632,19 @@ static int hpsa_update_device_info(struc
 
 	if (this_device->devtype == TYPE_DISK &&
 		is_logical_dev_addr_mode(scsi3addr)) {
-		int volume_offline;
+		unsigned char volume_offline;
 
 		hpsa_get_raid_level(h, scsi3addr, &this_device->raid_level);
 		if (h->fw_support & MISC_FW_RAID_OFFLOAD_BASIC)
 			hpsa_get_ioaccel_status(h, scsi3addr, this_device);
 		volume_offline = hpsa_volume_offline(h, scsi3addr);
-		if (volume_offline < 0 || volume_offline > 0xff)
-			volume_offline = HPSA_VPD_LV_STATUS_UNSUPPORTED;
-		this_device->volume_offline = volume_offline & 0xff;
+		if (volume_offline == HPSA_LV_FAILED) {
+			rc = HPSA_LV_FAILED;
+			dev_err(&h->pdev->dev,
+				"%s: LV failed, device will be skipped.\n",
+				__func__);
+			goto bail_out;
+		}
 	} else {
 		this_device->raid_level = RAID_UNKNOWN;
 		this_device->offload_config = 0;
@@ -3930,6 +3928,70 @@ static int hpsa_set_local_logical_count(
 	return rc;
 }
 
+static bool hpsa_is_disk_spare(struct ctlr_info *h, u8 *lunaddrbytes)
+{
+	struct bmic_identify_physical_device *id_phys;
+	bool is_spare = false;
+	int rc;
+
+	id_phys = kzalloc(sizeof(*id_phys), GFP_KERNEL);
+	if (!id_phys)
+		return false;
+
+	rc = hpsa_bmic_id_physical_device(h,
+					lunaddrbytes,
+					GET_BMIC_DRIVE_NUMBER(lunaddrbytes),
+					id_phys, sizeof(*id_phys));
+	if (rc == 0)
+		is_spare = (id_phys->more_flags >> 6) & 0x01;
+
+	kfree(id_phys);
+	return is_spare;
+}
+
+#define RPL_DEV_FLAG_NON_DISK                           0x1
+#define RPL_DEV_FLAG_UNCONFIG_DISK_REPORTING_SUPPORTED  0x2
+#define RPL_DEV_FLAG_UNCONFIG_DISK                      0x4
+
+#define BMIC_DEVICE_TYPE_ENCLOSURE  6
+
+static bool hpsa_skip_device(struct ctlr_info *h, u8 *lunaddrbytes,
+				struct ext_report_lun_entry *rle)
+{
+	u8 device_flags;
+	u8 device_type;
+
+	if (!MASKED_DEVICE(lunaddrbytes))
+		return false;
+
+	device_flags = rle->device_flags;
+	device_type = rle->device_type;
+
+	if (device_flags & RPL_DEV_FLAG_NON_DISK) {
+		if (device_type == BMIC_DEVICE_TYPE_ENCLOSURE)
+			return false;
+		return true;
+	}
+
+	if (!(device_flags & RPL_DEV_FLAG_UNCONFIG_DISK_REPORTING_SUPPORTED))
+		return false;
+
+	if (device_flags & RPL_DEV_FLAG_UNCONFIG_DISK)
+		return false;
+
+	/*
+	 * Spares may be spun down, we do not want to
+	 * do an Inquiry to a RAID set spare drive as
+	 * that would have them spun up, that is a
+	 * performance hit because I/O to the RAID device
+	 * stops while the spin up occurs which can take
+	 * over 50 seconds.
+	 */
+	if (hpsa_is_disk_spare(h, lunaddrbytes))
+		return true;
+
+	return false;
+}
 
 static void hpsa_update_scsi_devices(struct ctlr_info *h)
 {
@@ -4023,6 +4085,7 @@ static void hpsa_update_scsi_devices(str
 		u8 *lunaddrbytes, is_OBDR = 0;
 		int rc = 0;
 		int phys_dev_index = i - (raid_ctlr_position == 0);
+		bool skip_device = false;
 
 		physical_device = i < nphysicals + (raid_ctlr_position == 0);
 
@@ -4030,10 +4093,15 @@ static void hpsa_update_scsi_devices(str
 		lunaddrbytes = figure_lunaddrbytes(h, raid_ctlr_position,
 			i, nphysicals, nlogicals, physdev_list, logdev_list);
 
-		/* skip masked non-disk devices */
-		if (MASKED_DEVICE(lunaddrbytes) && physical_device &&
-			(physdev_list->LUN[phys_dev_index].device_flags & 0x01))
-			continue;
+		/*
+		 * Skip over some devices such as a spare.
+		 */
+		if (!tmpdevice->external && physical_device) {
+			skip_device = hpsa_skip_device(h, lunaddrbytes,
+					&physdev_list->LUN[phys_dev_index]);
+			if (skip_device)
+				continue;
+		}
 
 		/* Get device type, vendor, model, device id */
 		rc = hpsa_update_device_info(h, lunaddrbytes, tmpdevice,
@@ -4045,8 +4113,7 @@ static void hpsa_update_scsi_devices(str
 			goto out;
 		}
 		if (rc) {
-			dev_warn(&h->pdev->dev,
-				"Inquiry failed, skipping device.\n");
+			h->drv_req_rescan = 1;
 			continue;
 		}
 
@@ -5187,7 +5254,7 @@ static void hpsa_scan_complete(struct ct
 
 	spin_lock_irqsave(&h->scan_lock, flags);
 	h->scan_finished = 1;
-	wake_up_all(&h->scan_wait_queue);
+	wake_up(&h->scan_wait_queue);
 	spin_unlock_irqrestore(&h->scan_lock, flags);
 }
 
@@ -5205,11 +5272,23 @@ static void hpsa_scan_start(struct Scsi_
 	if (unlikely(lockup_detected(h)))
 		return hpsa_scan_complete(h);
 
+	/*
+	 * If a scan is already waiting to run, no need to add another
+	 */
+	spin_lock_irqsave(&h->scan_lock, flags);
+	if (h->scan_waiting) {
+		spin_unlock_irqrestore(&h->scan_lock, flags);
+		return;
+	}
+
+	spin_unlock_irqrestore(&h->scan_lock, flags);
+
 	/* wait until any scan already in progress is finished. */
 	while (1) {
 		spin_lock_irqsave(&h->scan_lock, flags);
 		if (h->scan_finished)
 			break;
+		h->scan_waiting = 1;
 		spin_unlock_irqrestore(&h->scan_lock, flags);
 		wait_event(h->scan_wait_queue, h->scan_finished);
 		/* Note: We don't need to worry about a race between this
@@ -5219,6 +5298,7 @@ static void hpsa_scan_start(struct Scsi_
 		 */
 	}
 	h->scan_finished = 0; /* mark scan as in progress */
+	h->scan_waiting = 0;
 	spin_unlock_irqrestore(&h->scan_lock, flags);
 
 	if (unlikely(lockup_detected(h)))
@@ -8435,6 +8515,7 @@ reinit_after_soft_reset:
 	init_waitqueue_head(&h->event_sync_wait_queue);
 	mutex_init(&h->reset_mutex);
 	h->scan_finished = 1; /* no scan currently in progress */
+	h->scan_waiting = 0;
 
 	pci_set_drvdata(pdev, h);
 	h->ndevices = 0;
@@ -8727,6 +8808,8 @@ static void hpsa_remove_one(struct pci_d
 	destroy_workqueue(h->rescan_ctlr_wq);
 	destroy_workqueue(h->resubmit_wq);
 
+	hpsa_delete_sas_host(h);
+
 	/*
 	 * Call before disabling interrupts.
 	 * scsi_remove_host can trigger I/O operations especially
@@ -8761,8 +8844,6 @@ static void hpsa_remove_one(struct pci_d
 	h->lockup_detected = NULL;			/* init_one 2 */
 	/* (void) pci_disable_pcie_error_reporting(pdev); */	/* init_one 1 */
 
-	hpsa_delete_sas_host(h);
-
 	kfree(h);					/* init_one 1 */
 }
 
@@ -9254,9 +9335,9 @@ static void hpsa_free_sas_phy(struct hps
 	struct sas_phy *phy = hpsa_sas_phy->phy;
 
 	sas_port_delete_phy(hpsa_sas_phy->parent_port->port, phy);
-	sas_phy_free(phy);
 	if (hpsa_sas_phy->added_to_port)
 		list_del(&hpsa_sas_phy->phy_list_entry);
+	sas_phy_delete(phy);
 	kfree(hpsa_sas_phy);
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/hpsa_cmd.h linux-libre-4.4.107-gnu/drivers/scsi/hpsa_cmd.h
--- linux-libre-4.4-gnu/drivers/scsi/hpsa_cmd.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/hpsa_cmd.h	2017-12-20 04:05:01.000000000 -0500
@@ -155,6 +155,7 @@
 #define CFGTBL_BusType_Fibre2G  0x00000200l
 
 /* VPD Inquiry types */
+#define HPSA_INQUIRY_FAILED		0x02
 #define HPSA_VPD_SUPPORTED_PAGES        0x00
 #define HPSA_VPD_LV_DEVICE_GEOMETRY     0xC1
 #define HPSA_VPD_LV_IOACCEL_STATUS      0xC2
@@ -164,6 +165,7 @@
 /* Logical volume states */
 #define HPSA_VPD_LV_STATUS_UNSUPPORTED			0xff
 #define HPSA_LV_OK                                      0x0
+#define HPSA_LV_FAILED					0x01
 #define HPSA_LV_NOT_AVAILABLE				0x0b
 #define HPSA_LV_UNDERGOING_ERASE			0x0F
 #define HPSA_LV_UNDERGOING_RPI				0x12
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/hpsa.h linux-libre-4.4.107-gnu/drivers/scsi/hpsa.h
--- linux-libre-4.4-gnu/drivers/scsi/hpsa.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/hpsa.h	2017-12-20 04:05:01.000000000 -0500
@@ -200,6 +200,7 @@ struct ctlr_info {
 	dma_addr_t		errinfo_pool_dhandle;
 	unsigned long  		*cmd_pool_bits;
 	int			scan_finished;
+	u8			scan_waiting : 1;
 	spinlock_t		scan_lock;
 	wait_queue_head_t	scan_wait_queue;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/ibmvscsi/ibmvfc.c linux-libre-4.4.107-gnu/drivers/scsi/ibmvscsi/ibmvfc.c
--- linux-libre-4.4-gnu/drivers/scsi/ibmvscsi/ibmvfc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/ibmvscsi/ibmvfc.c	2017-12-20 04:05:01.000000000 -0500
@@ -717,7 +717,6 @@ static int ibmvfc_reset_crq(struct ibmvf
 	spin_lock_irqsave(vhost->host->host_lock, flags);
 	vhost->state = IBMVFC_NO_CRQ;
 	vhost->logged_in = 0;
-	ibmvfc_set_host_action(vhost, IBMVFC_HOST_ACTION_NONE);
 
 	/* Clean out the queue */
 	memset(crq->msgs, 0, PAGE_SIZE);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/ipr.c linux-libre-4.4.107-gnu/drivers/scsi/ipr.c
--- linux-libre-4.4-gnu/drivers/scsi/ipr.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/ipr.c	2017-12-20 04:05:01.000000000 -0500
@@ -4003,13 +4003,17 @@ static ssize_t ipr_store_update_fw(struc
 	struct ipr_sglist *sglist;
 	char fname[100];
 	char *src;
-	int len, result, dnld_size;
+	char *endline;
+	int result, dnld_size;
 
 	if (!capable(CAP_SYS_ADMIN))
 		return -EACCES;
 
-	len = snprintf(fname, 99, "%s", buf);
-	fname[len-1] = '\0';
+	snprintf(fname, sizeof(fname), "%s", buf);
+
+	endline = strchr(fname, '\n');
+	if (endline)
+		*endline = '\0';
 
 	if (request_firmware(&fw_entry, fname, &ioa_cfg->pdev->dev)) {
 		dev_err(&ioa_cfg->pdev->dev, "Firmware file %s not found\n", fname);
@@ -10091,6 +10095,7 @@ static int ipr_probe_ioa(struct pci_dev
 		ioa_cfg->intr_flag = IPR_USE_MSI;
 	else {
 		ioa_cfg->intr_flag = IPR_USE_LSI;
+		ioa_cfg->clear_isr = 1;
 		ioa_cfg->nvectors = 1;
 		dev_info(&pdev->dev, "Cannot enable MSI.\n");
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/isci/remote_node_context.c linux-libre-4.4.107-gnu/drivers/scsi/isci/remote_node_context.c
--- linux-libre-4.4-gnu/drivers/scsi/isci/remote_node_context.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/isci/remote_node_context.c	2017-12-20 04:05:01.000000000 -0500
@@ -66,6 +66,9 @@ const char *rnc_state_name(enum scis_sds
 {
 	static const char * const strings[] = RNC_STATES;
 
+	if (state >= ARRAY_SIZE(strings))
+		return "UNKNOWN";
+
 	return strings[state];
 }
 #undef C
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/Kconfig linux-libre-4.4.107-gnu/drivers/scsi/Kconfig
--- linux-libre-4.4-gnu/drivers/scsi/Kconfig	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/Kconfig	2017-12-20 04:05:01.000000000 -0500
@@ -1637,7 +1637,7 @@ config ATARI_SCSI_RESET_BOOT
 
 config MAC_SCSI
 	tristate "Macintosh NCR5380 SCSI"
-	depends on MAC && SCSI=y
+	depends on MAC && SCSI
 	select SCSI_SPI_ATTRS
 	help
 	  This is the NCR 5380 SCSI controller included on most of the 68030
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/libiscsi.c linux-libre-4.4.107-gnu/drivers/scsi/libiscsi.c
--- linux-libre-4.4-gnu/drivers/scsi/libiscsi.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/libiscsi.c	2017-12-20 04:05:01.000000000 -0500
@@ -560,8 +560,12 @@ static void iscsi_complete_task(struct i
 	WARN_ON_ONCE(task->state == ISCSI_TASK_FREE);
 	task->state = state;
 
-	if (!list_empty(&task->running))
+	spin_lock_bh(&conn->taskqueuelock);
+	if (!list_empty(&task->running)) {
+		pr_debug_once("%s while task on list", __func__);
 		list_del_init(&task->running);
+	}
+	spin_unlock_bh(&conn->taskqueuelock);
 
 	if (conn->task == task)
 		conn->task = NULL;
@@ -783,7 +787,9 @@ __iscsi_conn_send_pdu(struct iscsi_conn
 		if (session->tt->xmit_task(task))
 			goto free_task;
 	} else {
+		spin_lock_bh(&conn->taskqueuelock);
 		list_add_tail(&task->running, &conn->mgmtqueue);
+		spin_unlock_bh(&conn->taskqueuelock);
 		iscsi_conn_queue_work(conn);
 	}
 
@@ -1474,8 +1480,10 @@ void iscsi_requeue_task(struct iscsi_tas
 	 * this may be on the requeue list already if the xmit_task callout
 	 * is handling the r2ts while we are adding new ones
 	 */
+	spin_lock_bh(&conn->taskqueuelock);
 	if (list_empty(&task->running))
 		list_add_tail(&task->running, &conn->requeue);
+	spin_unlock_bh(&conn->taskqueuelock);
 	iscsi_conn_queue_work(conn);
 }
 EXPORT_SYMBOL_GPL(iscsi_requeue_task);
@@ -1512,22 +1520,26 @@ static int iscsi_data_xmit(struct iscsi_
 	 * only have one nop-out as a ping from us and targets should not
 	 * overflow us with nop-ins
 	 */
+	spin_lock_bh(&conn->taskqueuelock);
 check_mgmt:
 	while (!list_empty(&conn->mgmtqueue)) {
 		conn->task = list_entry(conn->mgmtqueue.next,
 					 struct iscsi_task, running);
 		list_del_init(&conn->task->running);
+		spin_unlock_bh(&conn->taskqueuelock);
 		if (iscsi_prep_mgmt_task(conn, conn->task)) {
 			/* regular RX path uses back_lock */
 			spin_lock_bh(&conn->session->back_lock);
 			__iscsi_put_task(conn->task);
 			spin_unlock_bh(&conn->session->back_lock);
 			conn->task = NULL;
+			spin_lock_bh(&conn->taskqueuelock);
 			continue;
 		}
 		rc = iscsi_xmit_task(conn);
 		if (rc)
 			goto done;
+		spin_lock_bh(&conn->taskqueuelock);
 	}
 
 	/* process pending command queue */
@@ -1535,19 +1547,24 @@ check_mgmt:
 		conn->task = list_entry(conn->cmdqueue.next, struct iscsi_task,
 					running);
 		list_del_init(&conn->task->running);
+		spin_unlock_bh(&conn->taskqueuelock);
 		if (conn->session->state == ISCSI_STATE_LOGGING_OUT) {
 			fail_scsi_task(conn->task, DID_IMM_RETRY);
+			spin_lock_bh(&conn->taskqueuelock);
 			continue;
 		}
 		rc = iscsi_prep_scsi_cmd_pdu(conn->task);
 		if (rc) {
 			if (rc == -ENOMEM || rc == -EACCES) {
+				spin_lock_bh(&conn->taskqueuelock);
 				list_add_tail(&conn->task->running,
 					      &conn->cmdqueue);
 				conn->task = NULL;
+				spin_unlock_bh(&conn->taskqueuelock);
 				goto done;
 			} else
 				fail_scsi_task(conn->task, DID_ABORT);
+			spin_lock_bh(&conn->taskqueuelock);
 			continue;
 		}
 		rc = iscsi_xmit_task(conn);
@@ -1558,6 +1575,7 @@ check_mgmt:
 		 * we need to check the mgmt queue for nops that need to
 		 * be sent to aviod starvation
 		 */
+		spin_lock_bh(&conn->taskqueuelock);
 		if (!list_empty(&conn->mgmtqueue))
 			goto check_mgmt;
 	}
@@ -1577,12 +1595,15 @@ check_mgmt:
 		conn->task = task;
 		list_del_init(&conn->task->running);
 		conn->task->state = ISCSI_TASK_RUNNING;
+		spin_unlock_bh(&conn->taskqueuelock);
 		rc = iscsi_xmit_task(conn);
 		if (rc)
 			goto done;
+		spin_lock_bh(&conn->taskqueuelock);
 		if (!list_empty(&conn->mgmtqueue))
 			goto check_mgmt;
 	}
+	spin_unlock_bh(&conn->taskqueuelock);
 	spin_unlock_bh(&conn->session->frwd_lock);
 	return -ENODATA;
 
@@ -1738,7 +1759,9 @@ int iscsi_queuecommand(struct Scsi_Host
 			goto prepd_reject;
 		}
 	} else {
+		spin_lock_bh(&conn->taskqueuelock);
 		list_add_tail(&task->running, &conn->cmdqueue);
+		spin_unlock_bh(&conn->taskqueuelock);
 		iscsi_conn_queue_work(conn);
 	}
 
@@ -2900,6 +2923,7 @@ iscsi_conn_setup(struct iscsi_cls_sessio
 	INIT_LIST_HEAD(&conn->mgmtqueue);
 	INIT_LIST_HEAD(&conn->cmdqueue);
 	INIT_LIST_HEAD(&conn->requeue);
+	spin_lock_init(&conn->taskqueuelock);
 	INIT_WORK(&conn->xmitwork, iscsi_xmitworker);
 
 	/* allocate login_task used for the login/text sequences */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/libsas/sas_ata.c linux-libre-4.4.107-gnu/drivers/scsi/libsas/sas_ata.c
--- linux-libre-4.4-gnu/drivers/scsi/libsas/sas_ata.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/libsas/sas_ata.c	2017-12-20 04:05:01.000000000 -0500
@@ -218,7 +218,7 @@ static unsigned int sas_ata_qc_issue(str
 		task->num_scatter = qc->n_elem;
 	} else {
 		for_each_sg(qc->sg, sg, qc->n_elem, si)
-			xfer += sg->length;
+			xfer += sg_dma_len(sg);
 
 		task->total_xfer_len = xfer;
 		task->num_scatter = si;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/lpfc/lpfc_attr.c linux-libre-4.4.107-gnu/drivers/scsi/lpfc/lpfc_attr.c
--- linux-libre-4.4-gnu/drivers/scsi/lpfc/lpfc_attr.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/lpfc/lpfc_attr.c	2017-12-20 04:05:01.000000000 -0500
@@ -5148,6 +5148,19 @@ lpfc_free_sysfs_attr(struct lpfc_vport *
  */
 
 /**
+ * lpfc_get_host_symbolic_name - Copy symbolic name into the scsi host
+ * @shost: kernel scsi host pointer.
+ **/
+static void
+lpfc_get_host_symbolic_name(struct Scsi_Host *shost)
+{
+	struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
+
+	lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
+				      sizeof fc_host_symbolic_name(shost));
+}
+
+/**
  * lpfc_get_host_port_id - Copy the vport DID into the scsi host port id
  * @shost: kernel scsi host pointer.
  **/
@@ -5684,6 +5697,8 @@ struct fc_function_template lpfc_transpo
 	.show_host_supported_fc4s = 1,
 	.show_host_supported_speeds = 1,
 	.show_host_maxframe_size = 1,
+
+	.get_host_symbolic_name = lpfc_get_host_symbolic_name,
 	.show_host_symbolic_name = 1,
 
 	/* dynamic attributes the driver supports */
@@ -5751,6 +5766,8 @@ struct fc_function_template lpfc_vport_t
 	.show_host_supported_fc4s = 1,
 	.show_host_supported_speeds = 1,
 	.show_host_maxframe_size = 1,
+
+	.get_host_symbolic_name = lpfc_get_host_symbolic_name,
 	.show_host_symbolic_name = 1,
 
 	/* dynamic attributes the driver supports */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/lpfc/lpfc_crtn.h linux-libre-4.4.107-gnu/drivers/scsi/lpfc/lpfc_crtn.h
--- linux-libre-4.4-gnu/drivers/scsi/lpfc/lpfc_crtn.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/lpfc/lpfc_crtn.h	2017-12-20 04:05:01.000000000 -0500
@@ -72,6 +72,7 @@ void lpfc_cancel_all_vport_retry_delay_t
 void lpfc_retry_pport_discovery(struct lpfc_hba *);
 void lpfc_release_rpi(struct lpfc_hba *, struct lpfc_vport *, uint16_t);
 
+void lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *, LPFC_MBOXQ_t *);
 void lpfc_mbx_cmpl_reg_login(struct lpfc_hba *, LPFC_MBOXQ_t *);
 void lpfc_mbx_cmpl_dflt_rpi(struct lpfc_hba *, LPFC_MBOXQ_t *);
 void lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba *, LPFC_MBOXQ_t *);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/lpfc/lpfc_els.c linux-libre-4.4.107-gnu/drivers/scsi/lpfc/lpfc_els.c
--- linux-libre-4.4-gnu/drivers/scsi/lpfc/lpfc_els.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/lpfc/lpfc_els.c	2017-12-20 04:05:01.000000000 -0500
@@ -455,9 +455,9 @@ int
 lpfc_issue_reg_vfi(struct lpfc_vport *vport)
 {
 	struct lpfc_hba  *phba = vport->phba;
-	LPFC_MBOXQ_t *mboxq;
+	LPFC_MBOXQ_t *mboxq = NULL;
 	struct lpfc_nodelist *ndlp;
-	struct lpfc_dmabuf *dmabuf;
+	struct lpfc_dmabuf *dmabuf = NULL;
 	int rc = 0;
 
 	/* move forward in case of SLI4 FC port loopback test and pt2pt mode */
@@ -471,25 +471,33 @@ lpfc_issue_reg_vfi(struct lpfc_vport *vp
 		}
 	}
 
-	dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
-	if (!dmabuf) {
+	mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+	if (!mboxq) {
 		rc = -ENOMEM;
 		goto fail;
 	}
-	dmabuf->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &dmabuf->phys);
-	if (!dmabuf->virt) {
-		rc = -ENOMEM;
-		goto fail_free_dmabuf;
-	}
 
-	mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
-	if (!mboxq) {
-		rc = -ENOMEM;
-		goto fail_free_coherent;
+	/* Supply CSP's only if we are fabric connect or pt-to-pt connect */
+	if ((vport->fc_flag & FC_FABRIC) || (vport->fc_flag & FC_PT2PT)) {
+		dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
+		if (!dmabuf) {
+			rc = -ENOMEM;
+			goto fail;
+		}
+		dmabuf->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &dmabuf->phys);
+		if (!dmabuf->virt) {
+			rc = -ENOMEM;
+			goto fail;
+		}
+		memcpy(dmabuf->virt, &phba->fc_fabparam,
+		       sizeof(struct serv_parm));
 	}
+
 	vport->port_state = LPFC_FABRIC_CFG_LINK;
-	memcpy(dmabuf->virt, &phba->fc_fabparam, sizeof(vport->fc_sparam));
-	lpfc_reg_vfi(mboxq, vport, dmabuf->phys);
+	if (dmabuf)
+		lpfc_reg_vfi(mboxq, vport, dmabuf->phys);
+	else
+		lpfc_reg_vfi(mboxq, vport, 0);
 
 	mboxq->mbox_cmpl = lpfc_mbx_cmpl_reg_vfi;
 	mboxq->vport = vport;
@@ -497,17 +505,19 @@ lpfc_issue_reg_vfi(struct lpfc_vport *vp
 	rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
 	if (rc == MBX_NOT_FINISHED) {
 		rc = -ENXIO;
-		goto fail_free_mbox;
+		goto fail;
 	}
 	return 0;
 
-fail_free_mbox:
-	mempool_free(mboxq, phba->mbox_mem_pool);
-fail_free_coherent:
-	lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys);
-fail_free_dmabuf:
-	kfree(dmabuf);
 fail:
+	if (mboxq)
+		mempool_free(mboxq, phba->mbox_mem_pool);
+	if (dmabuf) {
+		if (dmabuf->virt)
+			lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys);
+		kfree(dmabuf);
+	}
+
 	lpfc_vport_set_state(vport, FC_VPORT_FAILED);
 	lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
 		"0289 Issue Register VFI failed: Err %d\n", rc);
@@ -711,9 +721,10 @@ lpfc_cmpl_els_flogi_fabric(struct lpfc_v
 	 * For FC we need to do some special processing because of the SLI
 	 * Port's default settings of the Common Service Parameters.
 	 */
-	if (phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_FC) {
+	if ((phba->sli_rev == LPFC_SLI_REV4) &&
+	    (phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_FC)) {
 		/* If physical FC port changed, unreg VFI and ALL VPIs / RPIs */
-		if ((phba->sli_rev == LPFC_SLI_REV4) && fabric_param_changed)
+		if (fabric_param_changed)
 			lpfc_unregister_fcf_prep(phba);
 
 		/* This should just update the VFI CSPs*/
@@ -824,13 +835,21 @@ lpfc_cmpl_els_flogi_nport(struct lpfc_vp
 
 	spin_lock_irq(shost->host_lock);
 	vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
+	vport->fc_flag |= FC_PT2PT;
 	spin_unlock_irq(shost->host_lock);
 
-	phba->fc_edtov = FF_DEF_EDTOV;
-	phba->fc_ratov = FF_DEF_RATOV;
+	/* If physical FC port changed, unreg VFI and ALL VPIs / RPIs */
+	if ((phba->sli_rev == LPFC_SLI_REV4) && phba->fc_topology_changed) {
+		lpfc_unregister_fcf_prep(phba);
+
+		spin_lock_irq(shost->host_lock);
+		vport->fc_flag &= ~FC_VFI_REGISTERED;
+		spin_unlock_irq(shost->host_lock);
+		phba->fc_topology_changed = 0;
+	}
+
 	rc = memcmp(&vport->fc_portname, &sp->portName,
 		    sizeof(vport->fc_portname));
-	memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm));
 
 	if (rc >= 0) {
 		/* This side will initiate the PLOGI */
@@ -839,38 +858,14 @@ lpfc_cmpl_els_flogi_nport(struct lpfc_vp
 		spin_unlock_irq(shost->host_lock);
 
 		/*
-		 * N_Port ID cannot be 0, set our to LocalID the other
-		 * side will be RemoteID.
+		 * N_Port ID cannot be 0, set our Id to LocalID
+		 * the other side will be RemoteID.
 		 */
 
 		/* not equal */
 		if (rc)
 			vport->fc_myDID = PT2PT_LocalID;
 
-		mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
-		if (!mbox)
-			goto fail;
-
-		lpfc_config_link(phba, mbox);
-
-		mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
-		mbox->vport = vport;
-		rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
-		if (rc == MBX_NOT_FINISHED) {
-			mempool_free(mbox, phba->mbox_mem_pool);
-			goto fail;
-		}
-
-		/*
-		 * For SLI4, the VFI/VPI are registered AFTER the
-		 * Nport with the higher WWPN sends the PLOGI with
-		 * an assigned NPortId.
-		 */
-
-		/* not equal */
-		if ((phba->sli_rev == LPFC_SLI_REV4) && rc)
-			lpfc_issue_reg_vfi(vport);
-
 		/* Decrement ndlp reference count indicating that ndlp can be
 		 * safely released when other references to it are done.
 		 */
@@ -912,29 +907,20 @@ lpfc_cmpl_els_flogi_nport(struct lpfc_vp
 	/* If we are pt2pt with another NPort, force NPIV off! */
 	phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED;
 
-	spin_lock_irq(shost->host_lock);
-	vport->fc_flag |= FC_PT2PT;
-	spin_unlock_irq(shost->host_lock);
-	/* If physical FC port changed, unreg VFI and ALL VPIs / RPIs */
-	if ((phba->sli_rev == LPFC_SLI_REV4) && phba->fc_topology_changed) {
-		lpfc_unregister_fcf_prep(phba);
+	mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+	if (!mbox)
+		goto fail;
 
-		/* The FC_VFI_REGISTERED flag will get clear in the cmpl
-		 * handler for unreg_vfi, but if we don't force the
-		 * FC_VFI_REGISTERED flag then the reg_vfi mailbox could be
-		 * built with the update bit set instead of just the vp bit to
-		 * change the Nport ID.  We need to have the vp set and the
-		 * Upd cleared on topology changes.
-		 */
-		spin_lock_irq(shost->host_lock);
-		vport->fc_flag &= ~FC_VFI_REGISTERED;
-		spin_unlock_irq(shost->host_lock);
-		phba->fc_topology_changed = 0;
-		lpfc_issue_reg_vfi(vport);
+	lpfc_config_link(phba, mbox);
+
+	mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link;
+	mbox->vport = vport;
+	rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
+	if (rc == MBX_NOT_FINISHED) {
+		mempool_free(mbox, phba->mbox_mem_pool);
+		goto fail;
 	}
 
-	/* Start discovery - this should just do CLEAR_LA */
-	lpfc_disc_start(vport);
 	return 0;
 fail:
 	return -ENXIO;
@@ -1068,7 +1054,10 @@ stop_rr_fcf_flogi:
 					lpfc_sli4_unreg_all_rpis(vport);
 				}
 			}
-			lpfc_issue_reg_vfi(vport);
+
+			/* Do not register VFI if the driver aborted FLOGI */
+			if (!lpfc_error_lost_link(irsp))
+				lpfc_issue_reg_vfi(vport);
 			lpfc_nlp_put(ndlp);
 			goto out;
 		}
@@ -1157,6 +1146,7 @@ flogifail:
 	spin_lock_irq(&phba->hbalock);
 	phba->fcf.fcf_flag &= ~FCF_DISCOVERY;
 	spin_unlock_irq(&phba->hbalock);
+
 	lpfc_nlp_put(ndlp);
 
 	if (!lpfc_error_lost_link(irsp)) {
@@ -1992,6 +1982,9 @@ lpfc_issue_els_plogi(struct lpfc_vport *
 	if (sp->cmn.fcphHigh < FC_PH3)
 		sp->cmn.fcphHigh = FC_PH3;
 
+	sp->cmn.valid_vendor_ver_level = 0;
+	memset(sp->vendorVersion, 0, sizeof(sp->vendorVersion));
+
 	lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
 		"Issue PLOGI:     did:x%x",
 		did, 0, 0);
@@ -3576,12 +3569,14 @@ lpfc_els_free_iocb(struct lpfc_hba *phba
 		} else {
 			buf_ptr1 = (struct lpfc_dmabuf *) elsiocb->context2;
 			lpfc_els_free_data(phba, buf_ptr1);
+			elsiocb->context2 = NULL;
 		}
 	}
 
 	if (elsiocb->context3) {
 		buf_ptr = (struct lpfc_dmabuf *) elsiocb->context3;
 		lpfc_els_free_bpl(phba, buf_ptr);
+		elsiocb->context3 = NULL;
 	}
 	lpfc_sli_release_iocbq(phba, elsiocb);
 	return 0;
@@ -3792,14 +3787,17 @@ lpfc_cmpl_els_rsp(struct lpfc_hba *phba,
 				lpfc_nlp_set_state(vport, ndlp,
 					   NLP_STE_REG_LOGIN_ISSUE);
 			}
+
+			ndlp->nlp_flag |= NLP_REG_LOGIN_SEND;
 			if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT)
 			    != MBX_NOT_FINISHED)
 				goto out;
-			else
-				/* Decrement the ndlp reference count we
-				 * set for this failed mailbox command.
-				 */
-				lpfc_nlp_put(ndlp);
+
+			/* Decrement the ndlp reference count we
+			 * set for this failed mailbox command.
+			 */
+			lpfc_nlp_put(ndlp);
+			ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND;
 
 			/* ELS rsp: Cannot issue reg_login for <NPortid> */
 			lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
@@ -3856,6 +3854,7 @@ out:
 				 * the routine lpfc_els_free_iocb.
 				 */
 				cmdiocb->context1 = NULL;
+
 	}
 
 	lpfc_els_free_iocb(phba, cmdiocb);
@@ -3898,6 +3897,7 @@ lpfc_els_rsp_acc(struct lpfc_vport *vpor
 	IOCB_t *oldcmd;
 	struct lpfc_iocbq *elsiocb;
 	uint8_t *pcmd;
+	struct serv_parm *sp;
 	uint16_t cmdsize;
 	int rc;
 	ELS_PKT *els_pkt_ptr;
@@ -3927,6 +3927,7 @@ lpfc_els_rsp_acc(struct lpfc_vport *vpor
 			"Issue ACC:       did:x%x flg:x%x",
 			ndlp->nlp_DID, ndlp->nlp_flag, 0);
 		break;
+	case ELS_CMD_FLOGI:
 	case ELS_CMD_PLOGI:
 		cmdsize = (sizeof(struct serv_parm) + sizeof(uint32_t));
 		elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry,
@@ -3944,10 +3945,37 @@ lpfc_els_rsp_acc(struct lpfc_vport *vpor
 
 		*((uint32_t *) (pcmd)) = ELS_CMD_ACC;
 		pcmd += sizeof(uint32_t);
-		memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm));
+		sp = (struct serv_parm *)pcmd;
+
+		if (flag == ELS_CMD_FLOGI) {
+			/* Copy the received service parameters back */
+			memcpy(sp, &phba->fc_fabparam,
+			       sizeof(struct serv_parm));
+
+			/* Clear the F_Port bit */
+			sp->cmn.fPort = 0;
+
+			/* Mark all class service parameters as invalid */
+			sp->cls1.classValid = 0;
+			sp->cls2.classValid = 0;
+			sp->cls3.classValid = 0;
+			sp->cls4.classValid = 0;
+
+			/* Copy our worldwide names */
+			memcpy(&sp->portName, &vport->fc_sparam.portName,
+			       sizeof(struct lpfc_name));
+			memcpy(&sp->nodeName, &vport->fc_sparam.nodeName,
+			       sizeof(struct lpfc_name));
+		} else {
+			memcpy(pcmd, &vport->fc_sparam,
+			       sizeof(struct serv_parm));
+
+			sp->cmn.valid_vendor_ver_level = 0;
+			memset(sp->vendorVersion, 0, sizeof(sp->vendorVersion));
+		}
 
 		lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
-			"Issue ACC PLOGI: did:x%x flg:x%x",
+			"Issue ACC FLOGI/PLOGI: did:x%x flg:x%x",
 			ndlp->nlp_DID, ndlp->nlp_flag, 0);
 		break;
 	case ELS_CMD_PRLO:
@@ -4681,28 +4709,25 @@ lpfc_rdp_res_speed(struct fc_rdp_port_sp
 
 	desc->tag = cpu_to_be32(RDP_PORT_SPEED_DESC_TAG);
 
-	switch (phba->sli4_hba.link_state.speed) {
-	case LPFC_FC_LA_SPEED_1G:
+	switch (phba->fc_linkspeed) {
+	case LPFC_LINK_SPEED_1GHZ:
 		rdp_speed = RDP_PS_1GB;
 		break;
-	case LPFC_FC_LA_SPEED_2G:
+	case LPFC_LINK_SPEED_2GHZ:
 		rdp_speed = RDP_PS_2GB;
 		break;
-	case LPFC_FC_LA_SPEED_4G:
+	case LPFC_LINK_SPEED_4GHZ:
 		rdp_speed = RDP_PS_4GB;
 		break;
-	case LPFC_FC_LA_SPEED_8G:
+	case LPFC_LINK_SPEED_8GHZ:
 		rdp_speed = RDP_PS_8GB;
 		break;
-	case LPFC_FC_LA_SPEED_10G:
+	case LPFC_LINK_SPEED_10GHZ:
 		rdp_speed = RDP_PS_10GB;
 		break;
-	case LPFC_FC_LA_SPEED_16G:
+	case LPFC_LINK_SPEED_16GHZ:
 		rdp_speed = RDP_PS_16GB;
 		break;
-	case LPFC_FC_LA_SPEED_32G:
-		rdp_speed = RDP_PS_32GB;
-		break;
 	default:
 		rdp_speed = RDP_PS_UNKNOWN;
 		break;
@@ -5739,7 +5764,6 @@ lpfc_els_rcv_flogi(struct lpfc_vport *vp
 	IOCB_t *icmd = &cmdiocb->iocb;
 	struct serv_parm *sp;
 	LPFC_MBOXQ_t *mbox;
-	struct ls_rjt stat;
 	uint32_t cmd, did;
 	int rc;
 	uint32_t fc_flag = 0;
@@ -5765,135 +5789,92 @@ lpfc_els_rcv_flogi(struct lpfc_vport *vp
 		return 1;
 	}
 
-	if ((lpfc_check_sparm(vport, ndlp, sp, CLASS3, 1))) {
-		/* For a FLOGI we accept, then if our portname is greater
-		 * then the remote portname we initiate Nport login.
-		 */
+	(void) lpfc_check_sparm(vport, ndlp, sp, CLASS3, 1);
 
-		rc = memcmp(&vport->fc_portname, &sp->portName,
-			    sizeof(struct lpfc_name));
 
-		if (!rc) {
-			if (phba->sli_rev < LPFC_SLI_REV4) {
-				mbox = mempool_alloc(phba->mbox_mem_pool,
-						     GFP_KERNEL);
-				if (!mbox)
-					return 1;
-				lpfc_linkdown(phba);
-				lpfc_init_link(phba, mbox,
-					       phba->cfg_topology,
-					       phba->cfg_link_speed);
-				mbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0;
-				mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
-				mbox->vport = vport;
-				rc = lpfc_sli_issue_mbox(phba, mbox,
-							 MBX_NOWAIT);
-				lpfc_set_loopback_flag(phba);
-				if (rc == MBX_NOT_FINISHED)
-					mempool_free(mbox, phba->mbox_mem_pool);
-				return 1;
-			} else {
-				/* abort the flogi coming back to ourselves
-				 * due to external loopback on the port.
-				 */
-				lpfc_els_abort_flogi(phba);
-				return 0;
-			}
-		} else if (rc > 0) {	/* greater than */
-			spin_lock_irq(shost->host_lock);
-			vport->fc_flag |= FC_PT2PT_PLOGI;
-			spin_unlock_irq(shost->host_lock);
+	/*
+	 * If our portname is greater than the remote portname,
+	 * then we initiate Nport login.
+	 */
 
-			/* If we have the high WWPN we can assign our own
-			 * myDID; otherwise, we have to WAIT for a PLOGI
-			 * from the remote NPort to find out what it
-			 * will be.
-			 */
-			vport->fc_myDID = PT2PT_LocalID;
-		} else
-			vport->fc_myDID = PT2PT_RemoteID;
+	rc = memcmp(&vport->fc_portname, &sp->portName,
+		    sizeof(struct lpfc_name));
 
-		/*
-		 * The vport state should go to LPFC_FLOGI only
-		 * AFTER we issue a FLOGI, not receive one.
+	if (!rc) {
+		if (phba->sli_rev < LPFC_SLI_REV4) {
+			mbox = mempool_alloc(phba->mbox_mem_pool,
+					     GFP_KERNEL);
+			if (!mbox)
+				return 1;
+			lpfc_linkdown(phba);
+			lpfc_init_link(phba, mbox,
+				       phba->cfg_topology,
+				       phba->cfg_link_speed);
+			mbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0;
+			mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
+			mbox->vport = vport;
+			rc = lpfc_sli_issue_mbox(phba, mbox,
+						 MBX_NOWAIT);
+			lpfc_set_loopback_flag(phba);
+			if (rc == MBX_NOT_FINISHED)
+				mempool_free(mbox, phba->mbox_mem_pool);
+			return 1;
+		}
+
+		/* abort the flogi coming back to ourselves
+		 * due to external loopback on the port.
 		 */
+		lpfc_els_abort_flogi(phba);
+		return 0;
+
+	} else if (rc > 0) {	/* greater than */
 		spin_lock_irq(shost->host_lock);
-		fc_flag = vport->fc_flag;
-		port_state = vport->port_state;
-		vport->fc_flag |= FC_PT2PT;
-		vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
+		vport->fc_flag |= FC_PT2PT_PLOGI;
 		spin_unlock_irq(shost->host_lock);
-		lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
-				 "3311 Rcv Flogi PS x%x new PS x%x "
-				 "fc_flag x%x new fc_flag x%x\n",
-				 port_state, vport->port_state,
-				 fc_flag, vport->fc_flag);
 
-		/*
-		 * We temporarily set fc_myDID to make it look like we are
-		 * a Fabric. This is done just so we end up with the right
-		 * did / sid on the FLOGI ACC rsp.
+		/* If we have the high WWPN we can assign our own
+		 * myDID; otherwise, we have to WAIT for a PLOGI
+		 * from the remote NPort to find out what it
+		 * will be.
 		 */
-		did = vport->fc_myDID;
-		vport->fc_myDID = Fabric_DID;
-
+		vport->fc_myDID = PT2PT_LocalID;
 	} else {
-		/* Reject this request because invalid parameters */
-		stat.un.b.lsRjtRsvd0 = 0;
-		stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
-		stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS;
-		stat.un.b.vendorUnique = 0;
-
-		/*
-		 * We temporarily set fc_myDID to make it look like we are
-		 * a Fabric. This is done just so we end up with the right
-		 * did / sid on the FLOGI LS_RJT rsp.
-		 */
-		did = vport->fc_myDID;
-		vport->fc_myDID = Fabric_DID;
-
-		lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
-			NULL);
+		vport->fc_myDID = PT2PT_RemoteID;
+	}
 
-		/* Now lets put fc_myDID back to what its supposed to be */
-		vport->fc_myDID = did;
+	/*
+	 * The vport state should go to LPFC_FLOGI only
+	 * AFTER we issue a FLOGI, not receive one.
+	 */
+	spin_lock_irq(shost->host_lock);
+	fc_flag = vport->fc_flag;
+	port_state = vport->port_state;
+	vport->fc_flag |= FC_PT2PT;
+	vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
+	spin_unlock_irq(shost->host_lock);
+	lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
+			 "3311 Rcv Flogi PS x%x new PS x%x "
+			 "fc_flag x%x new fc_flag x%x\n",
+			 port_state, vport->port_state,
+			 fc_flag, vport->fc_flag);
 
-		return 1;
-	}
+	/*
+	 * We temporarily set fc_myDID to make it look like we are
+	 * a Fabric. This is done just so we end up with the right
+	 * did / sid on the FLOGI ACC rsp.
+	 */
+	did = vport->fc_myDID;
+	vport->fc_myDID = Fabric_DID;
 
-	/* send our FLOGI first */
-	if (vport->port_state < LPFC_FLOGI) {
-		vport->fc_myDID = 0;
-		lpfc_initial_flogi(vport);
-		vport->fc_myDID = Fabric_DID;
-	}
+	memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm));
 
 	/* Send back ACC */
-	lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, ndlp, NULL);
+	lpfc_els_rsp_acc(vport, ELS_CMD_FLOGI, cmdiocb, ndlp, NULL);
 
 	/* Now lets put fc_myDID back to what its supposed to be */
 	vport->fc_myDID = did;
 
-	if (!(vport->fc_flag & FC_PT2PT_PLOGI)) {
-
-		mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
-		if (!mbox)
-			goto fail;
-
-		lpfc_config_link(phba, mbox);
-
-		mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
-		mbox->vport = vport;
-		rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
-		if (rc == MBX_NOT_FINISHED) {
-			mempool_free(mbox, phba->mbox_mem_pool);
-			goto fail;
-		}
-	}
-
 	return 0;
-fail:
-	return 1;
 }
 
 /**
@@ -7345,7 +7326,7 @@ lpfc_els_unsol_buffer(struct lpfc_hba *p
 
 	/* reject till our FLOGI completes */
 	if ((vport->port_state < LPFC_FABRIC_CFG_LINK) &&
-		(cmd != ELS_CMD_FLOGI)) {
+	    (cmd != ELS_CMD_FLOGI)) {
 		rjt_err = LSRJT_UNABLE_TPC;
 		rjt_exp = LSEXP_NOTHING_MORE;
 		goto lsrjt;
@@ -7381,6 +7362,7 @@ lpfc_els_unsol_buffer(struct lpfc_hba *p
 			rjt_exp = LSEXP_NOTHING_MORE;
 			break;
 		}
+
 		if (vport->port_state < LPFC_DISC_AUTH) {
 			if (!(phba->pport->fc_flag & FC_PT2PT) ||
 				(phba->pport->fc_flag & FC_PT2PT_PLOGI)) {
@@ -7905,11 +7887,17 @@ lpfc_cmpl_reg_new_vport(struct lpfc_hba
 			spin_lock_irq(shost->host_lock);
 			vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
 			spin_unlock_irq(shost->host_lock);
-			if (vport->port_type == LPFC_PHYSICAL_PORT
-				&& !(vport->fc_flag & FC_LOGO_RCVD_DID_CHNG))
-				lpfc_issue_init_vfi(vport);
-			else
+			if (mb->mbxStatus == MBX_NOT_FINISHED)
+				break;
+			if ((vport->port_type == LPFC_PHYSICAL_PORT) &&
+			    !(vport->fc_flag & FC_LOGO_RCVD_DID_CHNG)) {
+				if (phba->sli_rev == LPFC_SLI_REV4)
+					lpfc_issue_init_vfi(vport);
+				else
+					lpfc_initial_flogi(vport);
+			} else {
 				lpfc_initial_fdisc(vport);
+			}
 			break;
 		}
 	} else {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/lpfc/lpfc_hbadisc.c linux-libre-4.4.107-gnu/drivers/scsi/lpfc/lpfc_hbadisc.c
--- linux-libre-4.4-gnu/drivers/scsi/lpfc/lpfc_hbadisc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/lpfc/lpfc_hbadisc.c	2017-12-20 04:05:01.000000000 -0500
@@ -1083,7 +1083,7 @@ out:
 }
 
 
-static void
+void
 lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
 {
 	struct lpfc_vport *vport = pmb->vport;
@@ -1113,8 +1113,10 @@ lpfc_mbx_cmpl_local_config_link(struct l
 	/* Start discovery by sending a FLOGI. port_state is identically
 	 * LPFC_FLOGI while waiting for FLOGI cmpl
 	 */
-	if (vport->port_state != LPFC_FLOGI || vport->fc_flag & FC_PT2PT_PLOGI)
+	if (vport->port_state != LPFC_FLOGI)
 		lpfc_initial_flogi(vport);
+	else if (vport->fc_flag & FC_PT2PT)
+		lpfc_disc_start(vport);
 	return;
 
 out:
@@ -2963,8 +2965,10 @@ lpfc_mbx_cmpl_reg_vfi(struct lpfc_hba *p
 
 out_free_mem:
 	mempool_free(mboxq, phba->mbox_mem_pool);
-	lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys);
-	kfree(dmabuf);
+	if (dmabuf) {
+		lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys);
+		kfree(dmabuf);
+	}
 	return;
 }
 
@@ -3448,10 +3452,10 @@ lpfc_mbx_cmpl_reg_login(struct lpfc_hba
 		spin_lock_irq(shost->host_lock);
 		ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
 		spin_unlock_irq(shost->host_lock);
-	} else
-		/* Good status, call state machine */
-		lpfc_disc_state_machine(vport, ndlp, pmb,
-				NLP_EVT_CMPL_REG_LOGIN);
+	}
+
+	/* Call state machine */
+	lpfc_disc_state_machine(vport, ndlp, pmb, NLP_EVT_CMPL_REG_LOGIN);
 
 	lpfc_mbuf_free(phba, mp->virt, mp->phys);
 	kfree(mp);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/lpfc/lpfc_hw4.h linux-libre-4.4.107-gnu/drivers/scsi/lpfc/lpfc_hw4.h
--- linux-libre-4.4-gnu/drivers/scsi/lpfc/lpfc_hw4.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/lpfc/lpfc_hw4.h	2017-12-20 04:05:01.000000000 -0500
@@ -1182,6 +1182,7 @@ struct lpfc_mbx_wq_create {
 #define lpfc_mbx_wq_create_page_size_SHIFT	0
 #define lpfc_mbx_wq_create_page_size_MASK	0x000000FF
 #define lpfc_mbx_wq_create_page_size_WORD	word1
+#define LPFC_WQ_PAGE_SIZE_4096	0x1
 #define lpfc_mbx_wq_create_wqe_size_SHIFT	8
 #define lpfc_mbx_wq_create_wqe_size_MASK	0x0000000F
 #define lpfc_mbx_wq_create_wqe_size_WORD	word1
@@ -1253,6 +1254,7 @@ struct rq_context {
 #define lpfc_rq_context_page_size_SHIFT	0		/* Version 1 Only */
 #define lpfc_rq_context_page_size_MASK	0x000000FF
 #define lpfc_rq_context_page_size_WORD	word0
+#define	LPFC_RQ_PAGE_SIZE_4096	0x1
 	uint32_t reserved1;
 	uint32_t word2;
 #define lpfc_rq_context_cq_id_SHIFT	16
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/lpfc/lpfc_hw.h linux-libre-4.4.107-gnu/drivers/scsi/lpfc/lpfc_hw.h
--- linux-libre-4.4-gnu/drivers/scsi/lpfc/lpfc_hw.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/lpfc/lpfc_hw.h	2017-12-20 04:05:01.000000000 -0500
@@ -360,6 +360,12 @@ struct csp {
  * Word 1 Bit 30 in PLOGI request is random offset
  */
 #define virtual_fabric_support randomOffset /* Word 1, bit 30 */
+/*
+ * Word 1 Bit 29 in common service parameter is overloaded.
+ * Word 1 Bit 29 in FLOGI response is multiple NPort assignment
+ * Word 1 Bit 29 in FLOGI/PLOGI request is Valid Vendor Version Level
+ */
+#define valid_vendor_ver_level response_multiple_NPort /* Word 1, bit 29 */
 #ifdef __BIG_ENDIAN_BITFIELD
 	uint16_t request_multiple_Nport:1;	/* FC Word 1, bit 31 */
 	uint16_t randomOffset:1;	/* FC Word 1, bit 30 */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/lpfc/lpfc_init.c linux-libre-4.4.107-gnu/drivers/scsi/lpfc/lpfc_init.c
--- linux-libre-4.4-gnu/drivers/scsi/lpfc/lpfc_init.c	2016-01-10 21:14:13.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/lpfc/lpfc_init.c	2017-12-20 11:43:17.000000000 -0500
@@ -2855,7 +2855,7 @@ lpfc_online(struct lpfc_hba *phba)
 	}
 
 	vports = lpfc_create_vport_work_array(phba);
-	if (vports != NULL)
+	if (vports != NULL) {
 		for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
 			struct Scsi_Host *shost;
 			shost = lpfc_shost_from_vport(vports[i]);
@@ -2872,7 +2872,8 @@ lpfc_online(struct lpfc_hba *phba)
 			}
 			spin_unlock_irq(shost->host_lock);
 		}
-		lpfc_destroy_vport_work_array(phba, vports);
+	}
+	lpfc_destroy_vport_work_array(phba, vports);
 
 	lpfc_unblock_mgmt_io(phba);
 	return 0;
@@ -8833,9 +8834,12 @@ found:
 				 * already mapped to this phys_id.
 				 */
 				if (cpup->irq != LPFC_VECTOR_MAP_EMPTY) {
-					chann[saved_chann] =
-						cpup->channel_id;
-					saved_chann++;
+					if (saved_chann <=
+					    LPFC_FCP_IO_CHAN_MAX) {
+						chann[saved_chann] =
+							cpup->channel_id;
+						saved_chann++;
+					}
 					goto out;
 				}
 
@@ -11383,6 +11387,7 @@ static struct pci_driver lpfc_driver = {
 	.id_table	= lpfc_id_table,
 	.probe		= lpfc_pci_probe_one,
 	.remove		= lpfc_pci_remove_one,
+	.shutdown	= lpfc_pci_remove_one,
 	.suspend        = lpfc_pci_suspend_one,
 	.resume		= lpfc_pci_resume_one,
 	.err_handler    = &lpfc_err_handler,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/lpfc/lpfc_mbox.c linux-libre-4.4.107-gnu/drivers/scsi/lpfc/lpfc_mbox.c
--- linux-libre-4.4-gnu/drivers/scsi/lpfc/lpfc_mbox.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/lpfc/lpfc_mbox.c	2017-12-20 04:05:01.000000000 -0500
@@ -2145,10 +2145,12 @@ lpfc_reg_vfi(struct lpfcMboxq *mbox, str
 	reg_vfi->wwn[1] = cpu_to_le32(reg_vfi->wwn[1]);
 	reg_vfi->e_d_tov = phba->fc_edtov;
 	reg_vfi->r_a_tov = phba->fc_ratov;
-	reg_vfi->bde.addrHigh = putPaddrHigh(phys);
-	reg_vfi->bde.addrLow = putPaddrLow(phys);
-	reg_vfi->bde.tus.f.bdeSize = sizeof(vport->fc_sparam);
-	reg_vfi->bde.tus.f.bdeFlags = BUFF_TYPE_BDE_64;
+	if (phys) {
+		reg_vfi->bde.addrHigh = putPaddrHigh(phys);
+		reg_vfi->bde.addrLow = putPaddrLow(phys);
+		reg_vfi->bde.tus.f.bdeSize = sizeof(vport->fc_sparam);
+		reg_vfi->bde.tus.f.bdeFlags = BUFF_TYPE_BDE_64;
+	}
 	bf_set(lpfc_reg_vfi_nport_id, reg_vfi, vport->fc_myDID);
 
 	/* Only FC supports upd bit */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/lpfc/lpfc_nportdisc.c linux-libre-4.4.107-gnu/drivers/scsi/lpfc/lpfc_nportdisc.c
--- linux-libre-4.4-gnu/drivers/scsi/lpfc/lpfc_nportdisc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/lpfc/lpfc_nportdisc.c	2017-12-20 04:05:01.000000000 -0500
@@ -280,38 +280,12 @@ lpfc_rcv_plogi(struct lpfc_vport *vport,
 	uint32_t *lp;
 	IOCB_t *icmd;
 	struct serv_parm *sp;
+	uint32_t ed_tov;
 	LPFC_MBOXQ_t *mbox;
 	struct ls_rjt stat;
 	int rc;
 
 	memset(&stat, 0, sizeof (struct ls_rjt));
-	if (vport->port_state <= LPFC_FDISC) {
-		/* Before responding to PLOGI, check for pt2pt mode.
-		 * If we are pt2pt, with an outstanding FLOGI, abort
-		 * the FLOGI and resend it first.
-		 */
-		if (vport->fc_flag & FC_PT2PT) {
-			 lpfc_els_abort_flogi(phba);
-		        if (!(vport->fc_flag & FC_PT2PT_PLOGI)) {
-				/* If the other side is supposed to initiate
-				 * the PLOGI anyway, just ACC it now and
-				 * move on with discovery.
-				 */
-				phba->fc_edtov = FF_DEF_EDTOV;
-				phba->fc_ratov = FF_DEF_RATOV;
-				/* Start discovery - this should just do
-				   CLEAR_LA */
-				lpfc_disc_start(vport);
-			} else
-				lpfc_initial_flogi(vport);
-		} else {
-			stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY;
-			stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
-			lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb,
-					    ndlp, NULL);
-			return 0;
-		}
-	}
 	pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
 	lp = (uint32_t *) pcmd->virt;
 	sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t));
@@ -404,30 +378,46 @@ lpfc_rcv_plogi(struct lpfc_vport *vport,
 	/* Check for Nport to NPort pt2pt protocol */
 	if ((vport->fc_flag & FC_PT2PT) &&
 	    !(vport->fc_flag & FC_PT2PT_PLOGI)) {
-
 		/* rcv'ed PLOGI decides what our NPortId will be */
 		vport->fc_myDID = icmd->un.rcvels.parmRo;
-		mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
-		if (mbox == NULL)
-			goto out;
-		lpfc_config_link(phba, mbox);
-		mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
-		mbox->vport = vport;
-		rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
-		if (rc == MBX_NOT_FINISHED) {
-			mempool_free(mbox, phba->mbox_mem_pool);
-			goto out;
+
+		ed_tov = be32_to_cpu(sp->cmn.e_d_tov);
+		if (sp->cmn.edtovResolution) {
+			/* E_D_TOV ticks are in nanoseconds */
+			ed_tov = (phba->fc_edtov + 999999) / 1000000;
 		}
+
 		/*
-		 * For SLI4, the VFI/VPI are registered AFTER the
-		 * Nport with the higher WWPN sends us a PLOGI with
-		 * our assigned NPortId.
+		 * For pt-to-pt, use the larger EDTOV
+		 * RATOV = 2 * EDTOV
 		 */
+		if (ed_tov > phba->fc_edtov)
+			phba->fc_edtov = ed_tov;
+		phba->fc_ratov = (2 * phba->fc_edtov) / 1000;
+
+		memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm));
+
+		/* Issue config_link / reg_vfi to account for updated TOV's */
+
 		if (phba->sli_rev == LPFC_SLI_REV4)
 			lpfc_issue_reg_vfi(vport);
+		else {
+			mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+			if (mbox == NULL)
+				goto out;
+			lpfc_config_link(phba, mbox);
+			mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
+			mbox->vport = vport;
+			rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
+			if (rc == MBX_NOT_FINISHED) {
+				mempool_free(mbox, phba->mbox_mem_pool);
+				goto out;
+			}
+		}
 
 		lpfc_can_disctmo(vport);
 	}
+
 	mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 	if (!mbox)
 		goto out;
@@ -1038,7 +1028,9 @@ lpfc_cmpl_plogi_plogi_issue(struct lpfc_
 	uint32_t *lp;
 	IOCB_t *irsp;
 	struct serv_parm *sp;
+	uint32_t ed_tov;
 	LPFC_MBOXQ_t *mbox;
+	int rc;
 
 	cmdiocb = (struct lpfc_iocbq *) arg;
 	rspiocb = cmdiocb->context_un.rsp_iocb;
@@ -1094,18 +1086,63 @@ lpfc_cmpl_plogi_plogi_issue(struct lpfc_
 	ndlp->nlp_maxframe =
 		((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb;
 
+	if ((vport->fc_flag & FC_PT2PT) &&
+	    (vport->fc_flag & FC_PT2PT_PLOGI)) {
+		ed_tov = be32_to_cpu(sp->cmn.e_d_tov);
+		if (sp->cmn.edtovResolution) {
+			/* E_D_TOV ticks are in nanoseconds */
+			ed_tov = (phba->fc_edtov + 999999) / 1000000;
+		}
+
+		/*
+		 * Use the larger EDTOV
+		 * RATOV = 2 * EDTOV for pt-to-pt
+		 */
+		if (ed_tov > phba->fc_edtov)
+			phba->fc_edtov = ed_tov;
+		phba->fc_ratov = (2 * phba->fc_edtov) / 1000;
+
+		memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm));
+
+		/* Issue config_link / reg_vfi to account for updated TOV's */
+		if (phba->sli_rev == LPFC_SLI_REV4) {
+			lpfc_issue_reg_vfi(vport);
+		} else {
+			mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+			if (!mbox) {
+				lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
+						 "0133 PLOGI: no memory "
+						 "for config_link "
+						 "Data: x%x x%x x%x x%x\n",
+						 ndlp->nlp_DID, ndlp->nlp_state,
+						 ndlp->nlp_flag, ndlp->nlp_rpi);
+				goto out;
+			}
+
+			lpfc_config_link(phba, mbox);
+
+			mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
+			mbox->vport = vport;
+			rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
+			if (rc == MBX_NOT_FINISHED) {
+				mempool_free(mbox, phba->mbox_mem_pool);
+				goto out;
+			}
+		}
+	}
+
+	lpfc_unreg_rpi(vport, ndlp);
+
 	mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 	if (!mbox) {
 		lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
-			"0133 PLOGI: no memory for reg_login "
-			"Data: x%x x%x x%x x%x\n",
-			ndlp->nlp_DID, ndlp->nlp_state,
-			ndlp->nlp_flag, ndlp->nlp_rpi);
+				 "0018 PLOGI: no memory for reg_login "
+				 "Data: x%x x%x x%x x%x\n",
+				 ndlp->nlp_DID, ndlp->nlp_state,
+				 ndlp->nlp_flag, ndlp->nlp_rpi);
 		goto out;
 	}
 
-	lpfc_unreg_rpi(vport, ndlp);
-
 	if (lpfc_reg_rpi(phba, vport->vpi, irsp->un.elsreq64.remoteID,
 			 (uint8_t *) sp, mbox, ndlp->nlp_rpi) == 0) {
 		switch (ndlp->nlp_DID) {
@@ -2299,6 +2336,9 @@ lpfc_cmpl_reglogin_npr_node(struct lpfc_
 		if (vport->phba->sli_rev < LPFC_SLI_REV4)
 			ndlp->nlp_rpi = mb->un.varWords[0];
 		ndlp->nlp_flag |= NLP_RPI_REGISTERED;
+		if (ndlp->nlp_flag & NLP_LOGO_ACC) {
+			lpfc_unreg_rpi(vport, ndlp);
+		}
 	} else {
 		if (ndlp->nlp_flag & NLP_NODEV_REMOVE) {
 			lpfc_drop_node(vport, ndlp);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/lpfc/lpfc_scsi.c linux-libre-4.4.107-gnu/drivers/scsi/lpfc/lpfc_scsi.c
--- linux-libre-4.4-gnu/drivers/scsi/lpfc/lpfc_scsi.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/lpfc/lpfc_scsi.c	2017-12-20 04:05:01.000000000 -0500
@@ -3859,7 +3859,7 @@ int lpfc_sli4_scmd_to_wqidx_distr(struct
 	uint32_t tag;
 	uint16_t hwq;
 
-	if (shost_use_blk_mq(cmnd->device->host)) {
+	if (cmnd && shost_use_blk_mq(cmnd->device->host)) {
 		tag = blk_mq_unique_tag(cmnd->request);
 		hwq = blk_mq_unique_tag_to_hwq(tag);
 
@@ -3908,9 +3908,9 @@ lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba
 	uint32_t logit = LOG_FCP;
 
 	/* Sanity check on return of outstanding command */
-	if (!(lpfc_cmd->pCmd))
-		return;
 	cmd = lpfc_cmd->pCmd;
+	if (!cmd)
+		return;
 	shost = cmd->device->host;
 
 	lpfc_cmd->result = (pIocbOut->iocb.un.ulpWord[4] & IOERR_PARAM_MASK);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/lpfc/lpfc_sli.c linux-libre-4.4.107-gnu/drivers/scsi/lpfc/lpfc_sli.c
--- linux-libre-4.4-gnu/drivers/scsi/lpfc/lpfc_sli.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/lpfc/lpfc_sli.c	2017-12-20 04:05:01.000000000 -0500
@@ -118,6 +118,8 @@ lpfc_sli4_wq_put(struct lpfc_queue *q, u
 	if (q->phba->sli3_options & LPFC_SLI4_PHWQ_ENABLED)
 		bf_set(wqe_wqid, &wqe->generic.wqe_com, q->queue_id);
 	lpfc_sli_pcimem_bcopy(wqe, temp_wqe, q->entry_size);
+	/* ensure WQE bcopy flushed before doorbell write */
+	wmb();
 
 	/* Update the host index before invoking device */
 	host_index = q->host_index;
@@ -5887,18 +5889,25 @@ lpfc_sli4_alloc_resource_identifiers(str
 
  free_vfi_bmask:
 	kfree(phba->sli4_hba.vfi_bmask);
+	phba->sli4_hba.vfi_bmask = NULL;
  free_xri_ids:
 	kfree(phba->sli4_hba.xri_ids);
+	phba->sli4_hba.xri_ids = NULL;
  free_xri_bmask:
 	kfree(phba->sli4_hba.xri_bmask);
+	phba->sli4_hba.xri_bmask = NULL;
  free_vpi_ids:
 	kfree(phba->vpi_ids);
+	phba->vpi_ids = NULL;
  free_vpi_bmask:
 	kfree(phba->vpi_bmask);
+	phba->vpi_bmask = NULL;
  free_rpi_ids:
 	kfree(phba->sli4_hba.rpi_ids);
+	phba->sli4_hba.rpi_ids = NULL;
  free_rpi_bmask:
 	kfree(phba->sli4_hba.rpi_bmask);
+	phba->sli4_hba.rpi_bmask = NULL;
  err_exit:
 	return rc;
 }
@@ -9798,6 +9807,7 @@ lpfc_sli_abort_iotag_issue(struct lpfc_h
 		iabt->ulpCommand = CMD_CLOSE_XRI_CN;
 
 	abtsiocbp->iocb_cmpl = lpfc_sli_abort_els_cmpl;
+	abtsiocbp->vport = vport;
 
 	lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
 			 "0339 Abort xri x%x, original iotag x%x, "
@@ -13475,7 +13485,7 @@ lpfc_wq_create(struct lpfc_hba *phba, st
 			       LPFC_WQ_WQE_SIZE_128);
 			bf_set(lpfc_mbx_wq_create_page_size,
 			       &wq_create->u.request_1,
-			       (PAGE_SIZE/SLI4_PAGE_SIZE));
+			       LPFC_WQ_PAGE_SIZE_4096);
 			page = wq_create->u.request_1.page;
 			break;
 		}
@@ -13501,8 +13511,9 @@ lpfc_wq_create(struct lpfc_hba *phba, st
 			       LPFC_WQ_WQE_SIZE_128);
 			break;
 		}
-		bf_set(lpfc_mbx_wq_create_page_size, &wq_create->u.request_1,
-		       (PAGE_SIZE/SLI4_PAGE_SIZE));
+		bf_set(lpfc_mbx_wq_create_page_size,
+		       &wq_create->u.request_1,
+		       LPFC_WQ_PAGE_SIZE_4096);
 		page = wq_create->u.request_1.page;
 		break;
 	default:
@@ -13688,7 +13699,7 @@ lpfc_rq_create(struct lpfc_hba *phba, st
 		       LPFC_RQE_SIZE_8);
 		bf_set(lpfc_rq_context_page_size,
 		       &rq_create->u.request.context,
-		       (PAGE_SIZE/SLI4_PAGE_SIZE));
+		       LPFC_RQ_PAGE_SIZE_4096);
 	} else {
 		switch (hrq->entry_count) {
 		default:
@@ -14842,10 +14853,12 @@ lpfc_fc_frame_add(struct lpfc_vport *vpo
 	struct lpfc_dmabuf *h_buf;
 	struct hbq_dmabuf *seq_dmabuf = NULL;
 	struct hbq_dmabuf *temp_dmabuf = NULL;
+	uint8_t	found = 0;
 
 	INIT_LIST_HEAD(&dmabuf->dbuf.list);
 	dmabuf->time_stamp = jiffies;
 	new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
+
 	/* Use the hdr_buf to find the sequence that this frame belongs to */
 	list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
 		temp_hdr = (struct fc_frame_header *)h_buf->virt;
@@ -14885,7 +14898,8 @@ lpfc_fc_frame_add(struct lpfc_vport *vpo
 		return seq_dmabuf;
 	}
 	/* find the correct place in the sequence to insert this frame */
-	list_for_each_entry_reverse(d_buf, &seq_dmabuf->dbuf.list, list) {
+	d_buf = list_entry(seq_dmabuf->dbuf.list.prev, typeof(*d_buf), list);
+	while (!found) {
 		temp_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
 		temp_hdr = (struct fc_frame_header *)temp_dmabuf->hbuf.virt;
 		/*
@@ -14895,9 +14909,17 @@ lpfc_fc_frame_add(struct lpfc_vport *vpo
 		if (be16_to_cpu(new_hdr->fh_seq_cnt) >
 			be16_to_cpu(temp_hdr->fh_seq_cnt)) {
 			list_add(&dmabuf->dbuf.list, &temp_dmabuf->dbuf.list);
-			return seq_dmabuf;
+			found = 1;
+			break;
 		}
+
+		if (&d_buf->list == &seq_dmabuf->dbuf.list)
+			break;
+		d_buf = list_entry(d_buf->list.prev, typeof(*d_buf), list);
 	}
+
+	if (found)
+		return seq_dmabuf;
 	return NULL;
 }
 
@@ -16173,7 +16195,7 @@ fail_fcf_read:
 }
 
 /**
- * lpfc_check_next_fcf_pri
+ * lpfc_check_next_fcf_pri_level
  * phba pointer to the lpfc_hba struct for this port.
  * This routine is called from the lpfc_sli4_fcf_rr_next_index_get
  * routine when the rr_bmask is empty. The FCF indecies are put into the
@@ -16329,8 +16351,12 @@ next_priority:
 
 	if (next_fcf_index < LPFC_SLI4_FCF_TBL_INDX_MAX &&
 		phba->fcf.fcf_pri[next_fcf_index].fcf_rec.flag &
-		LPFC_FCF_FLOGI_FAILED)
+		LPFC_FCF_FLOGI_FAILED) {
+		if (list_is_singular(&phba->fcf.fcf_pri_list))
+			return LPFC_FCOE_FCF_NEXT_NONE;
+
 		goto next_priority;
+	}
 
 	lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
 			"2845 Get next roundrobin failover FCF (x%x)\n",
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/lpfc/lpfc_vport.c linux-libre-4.4.107-gnu/drivers/scsi/lpfc/lpfc_vport.c
--- linux-libre-4.4-gnu/drivers/scsi/lpfc/lpfc_vport.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/lpfc/lpfc_vport.c	2017-12-20 04:05:01.000000000 -0500
@@ -528,6 +528,12 @@ enable_vport(struct fc_vport *fc_vport)
 
 	spin_lock_irq(shost->host_lock);
 	vport->load_flag |= FC_LOADING;
+	if (vport->fc_flag & FC_VPORT_NEEDS_INIT_VPI) {
+		spin_unlock_irq(shost->host_lock);
+		lpfc_issue_init_vpi(vport);
+		goto out;
+	}
+
 	vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
 	spin_unlock_irq(shost->host_lock);
 
@@ -548,6 +554,8 @@ enable_vport(struct fc_vport *fc_vport)
 	} else {
 		lpfc_vport_set_state(vport, FC_VPORT_FAILED);
 	}
+
+out:
 	lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT,
 			 "1827 Vport Enabled.\n");
 	return VPORT_OK;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/megaraid/megaraid_sas_base.c linux-libre-4.4.107-gnu/drivers/scsi/megaraid/megaraid_sas_base.c
--- linux-libre-4.4-gnu/drivers/scsi/megaraid/megaraid_sas_base.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/megaraid/megaraid_sas_base.c	2017-12-20 04:05:01.000000000 -0500
@@ -735,6 +735,7 @@ megasas_fire_cmd_skinny(struct megasas_i
 	       &(regs)->inbound_high_queue_port);
 	writel((lower_32_bits(frame_phys_addr) | (frame_count<<1))|1,
 	       &(regs)->inbound_low_queue_port);
+	mmiowb();
 	spin_unlock_irqrestore(&instance->hba_lock, flags);
 }
 
@@ -1687,16 +1688,13 @@ megasas_queue_command(struct Scsi_Host *
 		goto out_done;
 	}
 
-	switch (scmd->cmnd[0]) {
-	case SYNCHRONIZE_CACHE:
-		/*
-		 * FW takes care of flush cache on its own
-		 * No need to send it down
-		 */
+	/*
+	 * FW takes care of flush cache on its own for Virtual Disk.
+	 * No need to send it down for VD. For JBOD send SYNCHRONIZE_CACHE to FW.
+	 */
+	if ((scmd->cmnd[0] == SYNCHRONIZE_CACHE) && MEGASAS_IS_LOGICAL(scmd)) {
 		scmd->result = DID_OK << 16;
 		goto out_done;
-	default:
-		break;
 	}
 
 	if (instance->instancet->build_and_issue_cmd(instance, scmd)) {
@@ -1826,9 +1824,12 @@ static void megasas_complete_outstanding
 			if (cmd_fusion->sync_cmd_idx != (u32)ULONG_MAX) {
 				cmd_mfi = instance->cmd_list[cmd_fusion->sync_cmd_idx];
 				if (cmd_mfi->sync_cmd &&
-					cmd_mfi->frame->hdr.cmd != MFI_CMD_ABORT)
+				    (cmd_mfi->frame->hdr.cmd != MFI_CMD_ABORT)) {
+					cmd_mfi->frame->hdr.cmd_status =
+							MFI_STAT_WRONG_STATE;
 					megasas_complete_cmd(instance,
 							     cmd_mfi, DID_OK);
+				}
 			}
 		}
 	} else {
@@ -4669,7 +4670,7 @@ static int megasas_init_fw(struct megasa
 	/* Find first memory bar */
 	bar_list = pci_select_bars(instance->pdev, IORESOURCE_MEM);
 	instance->bar = find_first_bit(&bar_list, sizeof(unsigned long));
-	if (pci_request_selected_regions(instance->pdev, instance->bar,
+	if (pci_request_selected_regions(instance->pdev, 1<<instance->bar,
 					 "megasas: LSI")) {
 		dev_printk(KERN_DEBUG, &instance->pdev->dev, "IO memory region busy!\n");
 		return -EBUSY;
@@ -4960,7 +4961,7 @@ fail_ready_state:
 	iounmap(instance->reg_set);
 
       fail_ioremap:
-	pci_release_selected_regions(instance->pdev, instance->bar);
+	pci_release_selected_regions(instance->pdev, 1<<instance->bar);
 
 	return -EINVAL;
 }
@@ -4981,7 +4982,7 @@ static void megasas_release_mfi(struct m
 
 	iounmap(instance->reg_set);
 
-	pci_release_selected_regions(instance->pdev, instance->bar);
+	pci_release_selected_regions(instance->pdev, 1<<instance->bar);
 }
 
 /**
@@ -5096,6 +5097,14 @@ megasas_register_aen(struct megasas_inst
 		prev_aen.word =
 			le32_to_cpu(instance->aen_cmd->frame->dcmd.mbox.w[1]);
 
+		if ((curr_aen.members.class < MFI_EVT_CLASS_DEBUG) ||
+		    (curr_aen.members.class > MFI_EVT_CLASS_DEAD)) {
+			dev_info(&instance->pdev->dev,
+				 "%s %d out of range class %d send by application\n",
+				 __func__, __LINE__, curr_aen.members.class);
+			return 0;
+		}
+
 		/*
 		 * A class whose enum value is smaller is inclusive of all
 		 * higher values. If a PROGRESS (= -1) was previously
@@ -5476,7 +5485,6 @@ static int megasas_probe_one(struct pci_
 	spin_lock_init(&instance->hba_lock);
 	spin_lock_init(&instance->completion_lock);
 
-	mutex_init(&instance->aen_mutex);
 	mutex_init(&instance->reset_mutex);
 
 	/*
@@ -5941,11 +5949,11 @@ static void megasas_detach_one(struct pc
 			if (fusion->ld_drv_map[i])
 				free_pages((ulong)fusion->ld_drv_map[i],
 					fusion->drv_map_pages);
-				if (fusion->pd_seq_sync)
-					dma_free_coherent(&instance->pdev->dev,
-						pd_seq_map_sz,
-						fusion->pd_seq_sync[i],
-						fusion->pd_seq_phys[i]);
+			if (fusion->pd_seq_sync[i])
+				dma_free_coherent(&instance->pdev->dev,
+					pd_seq_map_sz,
+					fusion->pd_seq_sync[i],
+					fusion->pd_seq_phys[i]);
 		}
 		free_pages((ulong)instance->ctrl_context,
 			instance->ctrl_context_pages);
@@ -6282,12 +6290,13 @@ out:
 	}
 
 	for (i = 0; i < ioc->sge_count; i++) {
-		if (kbuff_arr[i])
+		if (kbuff_arr[i]) {
 			dma_free_coherent(&instance->pdev->dev,
 					  le32_to_cpu(kern_sge32[i].length),
 					  kbuff_arr[i],
 					  le32_to_cpu(kern_sge32[i].phys_addr));
 			kbuff_arr[i] = NULL;
+		}
 	}
 
 	megasas_return_cmd(instance, cmd);
@@ -6442,10 +6451,10 @@ static int megasas_mgmt_ioctl_aen(struct
 	}
 	spin_unlock_irqrestore(&instance->hba_lock, flags);
 
-	mutex_lock(&instance->aen_mutex);
+	mutex_lock(&instance->reset_mutex);
 	error = megasas_register_aen(instance, aen.seq_num,
 				     aen.class_locale_word);
-	mutex_unlock(&instance->aen_mutex);
+	mutex_unlock(&instance->reset_mutex);
 	return error;
 }
 
@@ -6476,9 +6485,9 @@ static int megasas_mgmt_compat_ioctl_fw(
 	int i;
 	int error = 0;
 	compat_uptr_t ptr;
-	unsigned long local_raw_ptr;
 	u32 local_sense_off;
 	u32 local_sense_len;
+	u32 user_sense_off;
 
 	if (clear_user(ioc, sizeof(*ioc)))
 		return -EFAULT;
@@ -6496,17 +6505,16 @@ static int megasas_mgmt_compat_ioctl_fw(
 	 * sense_len is not null, so prepare the 64bit value under
 	 * the same condition.
 	 */
-	if (get_user(local_raw_ptr, ioc->frame.raw) ||
-		get_user(local_sense_off, &ioc->sense_off) ||
-		get_user(local_sense_len, &ioc->sense_len))
+	if (get_user(local_sense_off, &ioc->sense_off) ||
+		get_user(local_sense_len, &ioc->sense_len) ||
+		get_user(user_sense_off, &cioc->sense_off))
 		return -EFAULT;
 
-
 	if (local_sense_len) {
 		void __user **sense_ioc_ptr =
-			(void __user **)((u8*)local_raw_ptr + local_sense_off);
+			(void __user **)((u8 *)((unsigned long)&ioc->frame.raw) + local_sense_off);
 		compat_uptr_t *sense_cioc_ptr =
-			(compat_uptr_t *)(cioc->frame.raw + cioc->sense_off);
+			(compat_uptr_t *)(((unsigned long)&cioc->frame.raw) + user_sense_off);
 		if (get_user(ptr, sense_cioc_ptr) ||
 		    put_user(compat_ptr(ptr), sense_ioc_ptr))
 			return -EFAULT;
@@ -6647,6 +6655,7 @@ megasas_aen_polling(struct work_struct *
 	int     i, j, doscan = 0;
 	u32 seq_num, wait_time = MEGASAS_RESET_WAIT_TIME;
 	int error;
+	u8  dcmd_ret = 0;
 
 	if (!instance) {
 		printk(KERN_ERR "invalid instance!\n");
@@ -6659,16 +6668,7 @@ megasas_aen_polling(struct work_struct *
 		wait_time = MEGASAS_ROUTINE_WAIT_TIME_VF;
 
 	/* Don't run the event workqueue thread if OCR is running */
-	for (i = 0; i < wait_time; i++) {
-		if (instance->adprecovery == MEGASAS_HBA_OPERATIONAL)
-			break;
-		if (!(i % MEGASAS_RESET_NOTICE_INTERVAL)) {
-			dev_notice(&instance->pdev->dev, "%s waiting for "
-			       "controller reset to finish for scsi%d\n",
-			       __func__, instance->host->host_no);
-		}
-		msleep(1000);
-	}
+	mutex_lock(&instance->reset_mutex);
 
 	instance->ev = NULL;
 	host = instance->host;
@@ -6676,212 +6676,127 @@ megasas_aen_polling(struct work_struct *
 		megasas_decode_evt(instance);
 
 		switch (le32_to_cpu(instance->evt_detail->code)) {
-		case MR_EVT_PD_INSERTED:
-			if (megasas_get_pd_list(instance) == 0) {
-			for (i = 0; i < MEGASAS_MAX_PD_CHANNELS; i++) {
-				for (j = 0;
-				j < MEGASAS_MAX_DEV_PER_CHANNEL;
-				j++) {
-
-				pd_index =
-				(i * MEGASAS_MAX_DEV_PER_CHANNEL) + j;
-
-				sdev1 = scsi_device_lookup(host, i, j, 0);
-
-				if (instance->pd_list[pd_index].driveState
-						== MR_PD_STATE_SYSTEM) {
-					if (!sdev1)
-						scsi_add_device(host, i, j, 0);
-
-					if (sdev1)
-						scsi_device_put(sdev1);
-					}
-				}
-			}
-			}
-			doscan = 0;
-			break;
 
+		case MR_EVT_PD_INSERTED:
 		case MR_EVT_PD_REMOVED:
-			if (megasas_get_pd_list(instance) == 0) {
-			for (i = 0; i < MEGASAS_MAX_PD_CHANNELS; i++) {
-				for (j = 0;
-				j < MEGASAS_MAX_DEV_PER_CHANNEL;
-				j++) {
-
-				pd_index =
-				(i * MEGASAS_MAX_DEV_PER_CHANNEL) + j;
-
-				sdev1 = scsi_device_lookup(host, i, j, 0);
-
-				if (instance->pd_list[pd_index].driveState
-					== MR_PD_STATE_SYSTEM) {
-					if (sdev1)
-						scsi_device_put(sdev1);
-				} else {
-					if (sdev1) {
-						scsi_remove_device(sdev1);
-						scsi_device_put(sdev1);
-					}
-				}
-				}
-			}
-			}
-			doscan = 0;
+			dcmd_ret = megasas_get_pd_list(instance);
+			if (dcmd_ret == 0)
+				doscan = SCAN_PD_CHANNEL;
 			break;
 
 		case MR_EVT_LD_OFFLINE:
 		case MR_EVT_CFG_CLEARED:
 		case MR_EVT_LD_DELETED:
-			if (!instance->requestorId ||
-			    megasas_get_ld_vf_affiliation(instance, 0)) {
-				if (megasas_ld_list_query(instance,
-							  MR_LD_QUERY_TYPE_EXPOSED_TO_HOST))
-					megasas_get_ld_list(instance);
-				for (i = 0; i < MEGASAS_MAX_LD_CHANNELS; i++) {
-					for (j = 0;
-					     j < MEGASAS_MAX_DEV_PER_CHANNEL;
-					     j++) {
-
-						ld_index =
-							(i * MEGASAS_MAX_DEV_PER_CHANNEL) + j;
-
-						sdev1 = scsi_device_lookup(host, MEGASAS_MAX_PD_CHANNELS + i, j, 0);
-
-						if (instance->ld_ids[ld_index]
-						    != 0xff) {
-							if (sdev1)
-								scsi_device_put(sdev1);
-						} else {
-							if (sdev1) {
-								scsi_remove_device(sdev1);
-								scsi_device_put(sdev1);
-							}
-						}
-					}
-				}
-				doscan = 0;
-			}
-			break;
 		case MR_EVT_LD_CREATED:
 			if (!instance->requestorId ||
-			    megasas_get_ld_vf_affiliation(instance, 0)) {
-				if (megasas_ld_list_query(instance,
-							  MR_LD_QUERY_TYPE_EXPOSED_TO_HOST))
-					megasas_get_ld_list(instance);
-				for (i = 0; i < MEGASAS_MAX_LD_CHANNELS; i++) {
-					for (j = 0;
-					     j < MEGASAS_MAX_DEV_PER_CHANNEL;
-					     j++) {
-						ld_index =
-							(i * MEGASAS_MAX_DEV_PER_CHANNEL) + j;
+				(instance->requestorId && megasas_get_ld_vf_affiliation(instance, 0)))
+				dcmd_ret = megasas_ld_list_query(instance, MR_LD_QUERY_TYPE_EXPOSED_TO_HOST);
 
-						sdev1 = scsi_device_lookup(host, MEGASAS_MAX_PD_CHANNELS + i, j, 0);
+			if (dcmd_ret == 0)
+				doscan = SCAN_VD_CHANNEL;
 
-						if (instance->ld_ids[ld_index]
-						    != 0xff) {
-							if (!sdev1)
-								scsi_add_device(host, MEGASAS_MAX_PD_CHANNELS + i, j, 0);
-						}
-						if (sdev1)
-							scsi_device_put(sdev1);
-					}
-				}
-				doscan = 0;
-			}
 			break;
+
 		case MR_EVT_CTRL_HOST_BUS_SCAN_REQUESTED:
 		case MR_EVT_FOREIGN_CFG_IMPORTED:
 		case MR_EVT_LD_STATE_CHANGE:
-			doscan = 1;
+			dcmd_ret = megasas_get_pd_list(instance);
+
+			if (dcmd_ret != 0)
+				break;
+
+			if (!instance->requestorId ||
+				(instance->requestorId && megasas_get_ld_vf_affiliation(instance, 0)))
+				dcmd_ret = megasas_ld_list_query(instance, MR_LD_QUERY_TYPE_EXPOSED_TO_HOST);
+
+			if (dcmd_ret != 0)
+				break;
+
+			doscan = SCAN_VD_CHANNEL | SCAN_PD_CHANNEL;
+			dev_info(&instance->pdev->dev, "scanning for scsi%d...\n",
+				instance->host->host_no);
 			break;
+
 		case MR_EVT_CTRL_PROP_CHANGED:
-			megasas_get_ctrl_info(instance);
-			break;
+				dcmd_ret = megasas_get_ctrl_info(instance);
+				break;
 		default:
 			doscan = 0;
 			break;
 		}
 	} else {
 		dev_err(&instance->pdev->dev, "invalid evt_detail!\n");
+		mutex_unlock(&instance->reset_mutex);
 		kfree(ev);
 		return;
 	}
 
-	if (doscan) {
-		dev_info(&instance->pdev->dev, "scanning for scsi%d...\n",
-		       instance->host->host_no);
-		if (megasas_get_pd_list(instance) == 0) {
-			for (i = 0; i < MEGASAS_MAX_PD_CHANNELS; i++) {
-				for (j = 0; j < MEGASAS_MAX_DEV_PER_CHANNEL; j++) {
-					pd_index = i*MEGASAS_MAX_DEV_PER_CHANNEL + j;
-					sdev1 = scsi_device_lookup(host, i, j, 0);
-					if (instance->pd_list[pd_index].driveState ==
-					    MR_PD_STATE_SYSTEM) {
-						if (!sdev1) {
-							scsi_add_device(host, i, j, 0);
-						}
-						if (sdev1)
-							scsi_device_put(sdev1);
-					} else {
-						if (sdev1) {
-							scsi_remove_device(sdev1);
-							scsi_device_put(sdev1);
-						}
+	mutex_unlock(&instance->reset_mutex);
+
+	if (doscan & SCAN_PD_CHANNEL) {
+		for (i = 0; i < MEGASAS_MAX_PD_CHANNELS; i++) {
+			for (j = 0; j < MEGASAS_MAX_DEV_PER_CHANNEL; j++) {
+				pd_index = i*MEGASAS_MAX_DEV_PER_CHANNEL + j;
+				sdev1 = scsi_device_lookup(host, i, j, 0);
+				if (instance->pd_list[pd_index].driveState ==
+							MR_PD_STATE_SYSTEM) {
+					if (!sdev1)
+						scsi_add_device(host, i, j, 0);
+					else
+						scsi_device_put(sdev1);
+				} else {
+					if (sdev1) {
+						scsi_remove_device(sdev1);
+						scsi_device_put(sdev1);
 					}
 				}
 			}
 		}
+	}
 
-		if (!instance->requestorId ||
-		    megasas_get_ld_vf_affiliation(instance, 0)) {
-			if (megasas_ld_list_query(instance,
-						  MR_LD_QUERY_TYPE_EXPOSED_TO_HOST))
-				megasas_get_ld_list(instance);
-			for (i = 0; i < MEGASAS_MAX_LD_CHANNELS; i++) {
-				for (j = 0; j < MEGASAS_MAX_DEV_PER_CHANNEL;
-				     j++) {
-					ld_index =
-						(i * MEGASAS_MAX_DEV_PER_CHANNEL) + j;
-
-					sdev1 = scsi_device_lookup(host,
-								   MEGASAS_MAX_PD_CHANNELS + i, j, 0);
-					if (instance->ld_ids[ld_index]
-					    != 0xff) {
-						if (!sdev1)
-							scsi_add_device(host, MEGASAS_MAX_PD_CHANNELS + i, j, 0);
-						else
-							scsi_device_put(sdev1);
-					} else {
-						if (sdev1) {
-							scsi_remove_device(sdev1);
-							scsi_device_put(sdev1);
-						}
+	if (doscan & SCAN_VD_CHANNEL) {
+		for (i = 0; i < MEGASAS_MAX_LD_CHANNELS; i++) {
+			for (j = 0; j < MEGASAS_MAX_DEV_PER_CHANNEL; j++) {
+				ld_index = (i * MEGASAS_MAX_DEV_PER_CHANNEL) + j;
+				sdev1 = scsi_device_lookup(host, MEGASAS_MAX_PD_CHANNELS + i, j, 0);
+				if (instance->ld_ids[ld_index] != 0xff) {
+					if (!sdev1)
+						scsi_add_device(host, MEGASAS_MAX_PD_CHANNELS + i, j, 0);
+					else
+						scsi_device_put(sdev1);
+				} else {
+					if (sdev1) {
+						scsi_remove_device(sdev1);
+						scsi_device_put(sdev1);
 					}
 				}
 			}
 		}
 	}
 
-	if (instance->aen_cmd != NULL) {
-		kfree(ev);
-		return ;
-	}
-
-	seq_num = le32_to_cpu(instance->evt_detail->seq_num) + 1;
+	if (dcmd_ret == 0)
+		seq_num = le32_to_cpu(instance->evt_detail->seq_num) + 1;
+	else
+		seq_num = instance->last_seq_num;
 
 	/* Register AEN with FW for latest sequence number plus 1 */
 	class_locale.members.reserved = 0;
 	class_locale.members.locale = MR_EVT_LOCALE_ALL;
 	class_locale.members.class = MR_EVT_CLASS_DEBUG;
-	mutex_lock(&instance->aen_mutex);
+
+	if (instance->aen_cmd != NULL) {
+		kfree(ev);
+		return;
+	}
+
+	mutex_lock(&instance->reset_mutex);
 	error = megasas_register_aen(instance, seq_num,
 					class_locale.word);
-	mutex_unlock(&instance->aen_mutex);
-
 	if (error)
-		dev_err(&instance->pdev->dev, "register aen failed error %x\n", error);
+		dev_err(&instance->pdev->dev,
+			"register aen failed error %x\n", error);
 
+	mutex_unlock(&instance->reset_mutex);
 	kfree(ev);
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/megaraid/megaraid_sas_fusion.c linux-libre-4.4.107-gnu/drivers/scsi/megaraid/megaraid_sas_fusion.c
--- linux-libre-4.4-gnu/drivers/scsi/megaraid/megaraid_sas_fusion.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/megaraid/megaraid_sas_fusion.c	2017-12-20 04:05:01.000000000 -0500
@@ -201,6 +201,7 @@ megasas_fire_cmd_fusion(struct megasas_i
 		&instance->reg_set->inbound_low_queue_port);
 	writel(le32_to_cpu(req_desc->u.high),
 		&instance->reg_set->inbound_high_queue_port);
+	mmiowb();
 	spin_unlock_irqrestore(&instance->hba_lock, flags);
 #endif
 }
@@ -1855,6 +1856,8 @@ megasas_build_syspd_fusion(struct megasa
 		io_request->DevHandle = pd_sync->seq[pd_index].devHandle;
 		pRAID_Context->regLockFlags |=
 			(MR_RL_FLAGS_SEQ_NUM_ENABLE|MR_RL_FLAGS_GRANT_DESTINATION_CUDA);
+		pRAID_Context->Type = MPI2_TYPE_CUDA;
+		pRAID_Context->nseg = 0x1;
 	} else if (fusion->fast_path_io) {
 		pRAID_Context->VirtualDiskTgtId = cpu_to_le16(device_id);
 		pRAID_Context->configSeqNum = 0;
@@ -1890,12 +1893,10 @@ megasas_build_syspd_fusion(struct megasa
 		pRAID_Context->timeoutValue =
 			cpu_to_le16((os_timeout_value > timeout_limit) ?
 			timeout_limit : os_timeout_value);
-		if (fusion->adapter_type == INVADER_SERIES) {
-			pRAID_Context->Type = MPI2_TYPE_CUDA;
-			pRAID_Context->nseg = 0x1;
+		if (fusion->adapter_type == INVADER_SERIES)
 			io_request->IoFlags |=
 				cpu_to_le16(MPI25_SAS_DEVICE0_FLAGS_ENABLED_FAST_PATH);
-		}
+
 		cmd->request_desc->SCSIIO.RequestFlags =
 			(MPI2_REQ_DESCRIPT_FLAGS_HIGH_PRIORITY <<
 				MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
@@ -2437,7 +2438,7 @@ megasas_release_fusion(struct megasas_in
 
 	iounmap(instance->reg_set);
 
-	pci_release_selected_regions(instance->pdev, instance->bar);
+	pci_release_selected_regions(instance->pdev, 1<<instance->bar);
 }
 
 /**
@@ -2647,6 +2648,7 @@ int megasas_wait_for_outstanding_fusion(
 		dev_err(&instance->pdev->dev, "pending commands remain after waiting, "
 		       "will reset adapter scsi%d.\n",
 		       instance->host->host_no);
+		*convert = 1;
 		retval = 1;
 	}
 out:
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/megaraid/megaraid_sas.h linux-libre-4.4.107-gnu/drivers/scsi/megaraid/megaraid_sas.h
--- linux-libre-4.4-gnu/drivers/scsi/megaraid/megaraid_sas.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/megaraid/megaraid_sas.h	2017-12-20 04:05:01.000000000 -0500
@@ -1083,6 +1083,8 @@ struct megasas_ctrl_info {
 
 #define VD_EXT_DEBUG 0
 
+#define SCAN_PD_CHANNEL	0x1
+#define SCAN_VD_CHANNEL	0x2
 
 enum MR_SCSI_CMD_TYPE {
 	READ_WRITE_LDIO = 0,
@@ -1921,7 +1923,7 @@ struct megasas_instance_template {
 };
 
 #define MEGASAS_IS_LOGICAL(scp)						\
-	(scp->device->channel < MEGASAS_MAX_PD_CHANNELS) ? 0 : 1
+	((scp->device->channel < MEGASAS_MAX_PD_CHANNELS) ? 0 : 1)
 
 #define MEGASAS_DEV_INDEX(scp)						\
 	(((scp->device->channel % 2) * MEGASAS_MAX_DEV_PER_CHANNEL) +	\
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/mpt3sas/mpt3sas_base.c linux-libre-4.4.107-gnu/drivers/scsi/mpt3sas/mpt3sas_base.c
--- linux-libre-4.4-gnu/drivers/scsi/mpt3sas/mpt3sas_base.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/mpt3sas/mpt3sas_base.c	2017-12-20 04:05:01.000000000 -0500
@@ -2020,8 +2020,10 @@ mpt3sas_base_unmap_resources(struct MPT3
 	_base_free_irq(ioc);
 	_base_disable_msix(ioc);
 
-	if (ioc->msix96_vector)
+	if (ioc->msix96_vector) {
 		kfree(ioc->replyPostRegisterIndex);
+		ioc->replyPostRegisterIndex = NULL;
+	}
 
 	if (ioc->chip_phys) {
 		iounmap(ioc->chip);
@@ -2155,6 +2157,17 @@ mpt3sas_base_map_resources(struct MPT3SA
 	} else
 		ioc->msix96_vector = 0;
 
+	if (ioc->is_warpdrive) {
+		ioc->reply_post_host_index[0] = (resource_size_t __iomem *)
+		    &ioc->chip->ReplyPostHostIndex;
+
+		for (i = 1; i < ioc->cpu_msix_table_sz; i++)
+			ioc->reply_post_host_index[i] =
+			(resource_size_t __iomem *)
+			((u8 __iomem *)&ioc->chip->Doorbell + (0x4000 + ((i - 1)
+			* 4)));
+	}
+
 	list_for_each_entry(reply_q, &ioc->reply_queue_list, list)
 		pr_info(MPT3SAS_FMT "%s: IRQ %d\n",
 		    reply_q->name,  ((ioc->msix_enable) ? "PCI-MSI-X enabled" :
@@ -2229,6 +2242,12 @@ mpt3sas_base_get_reply_virt_addr(struct
 	return ioc->reply + (phys_addr - (u32)ioc->reply_dma);
 }
 
+static inline u8
+_base_get_msix_index(struct MPT3SAS_ADAPTER *ioc)
+{
+	return ioc->cpu_msix_table[raw_smp_processor_id()];
+}
+
 /**
  * mpt3sas_base_get_smid - obtain a free smid from internal queue
  * @ioc: per adapter object
@@ -2289,6 +2308,7 @@ mpt3sas_base_get_smid_scsiio(struct MPT3
 	request->scmd = scmd;
 	request->cb_idx = cb_idx;
 	smid = request->smid;
+	request->msix_io = _base_get_msix_index(ioc);
 	list_del(&request->tracker_list);
 	spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
 	return smid;
@@ -2411,12 +2431,6 @@ _base_writeq(__u64 b, volatile void __io
 }
 #endif
 
-static inline u8
-_base_get_msix_index(struct MPT3SAS_ADAPTER *ioc)
-{
-	return ioc->cpu_msix_table[raw_smp_processor_id()];
-}
-
 /**
  * mpt3sas_base_put_smid_scsi_io - send SCSI_IO request to firmware
  * @ioc: per adapter object
@@ -2470,18 +2484,19 @@ mpt3sas_base_put_smid_fast_path(struct M
  * mpt3sas_base_put_smid_hi_priority - send Task Managment request to firmware
  * @ioc: per adapter object
  * @smid: system request message index
- *
+ * @msix_task: msix_task will be same as msix of IO incase of task abort else 0.
  * Return nothing.
  */
 void
-mpt3sas_base_put_smid_hi_priority(struct MPT3SAS_ADAPTER *ioc, u16 smid)
+mpt3sas_base_put_smid_hi_priority(struct MPT3SAS_ADAPTER *ioc, u16 smid,
+	u16 msix_task)
 {
 	Mpi2RequestDescriptorUnion_t descriptor;
 	u64 *request = (u64 *)&descriptor;
 
 	descriptor.HighPriority.RequestFlags =
 	    MPI2_REQ_DESCRIPT_FLAGS_HIGH_PRIORITY;
-	descriptor.HighPriority.MSIxIndex =  0;
+	descriptor.HighPriority.MSIxIndex =  msix_task;
 	descriptor.HighPriority.SMID = cpu_to_le16(smid);
 	descriptor.HighPriority.LMID = 0;
 	descriptor.HighPriority.Reserved1 = 0;
@@ -4966,15 +4981,14 @@ _base_make_ioc_ready(struct MPT3SAS_ADAP
 static int
 _base_make_ioc_operational(struct MPT3SAS_ADAPTER *ioc, int sleep_flag)
 {
-	int r, i;
+	int r, i, index;
 	unsigned long	flags;
 	u32 reply_address;
 	u16 smid;
 	struct _tr_list *delayed_tr, *delayed_tr_next;
 	u8 hide_flag;
 	struct adapter_reply_queue *reply_q;
-	long reply_post_free;
-	u32 reply_post_free_sz, index = 0;
+	Mpi2ReplyDescriptorsUnion_t *reply_post_free_contig;
 
 	dinitprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
 	    __func__));
@@ -5046,27 +5060,27 @@ _base_make_ioc_operational(struct MPT3SA
 		_base_assign_reply_queues(ioc);
 
 	/* initialize Reply Post Free Queue */
-	reply_post_free_sz = ioc->reply_post_queue_depth *
-	    sizeof(Mpi2DefaultReplyDescriptor_t);
-	reply_post_free = (long)ioc->reply_post[index].reply_post_free;
+	index = 0;
+	reply_post_free_contig = ioc->reply_post[0].reply_post_free;
 	list_for_each_entry(reply_q, &ioc->reply_queue_list, list) {
+		/*
+		 * If RDPQ is enabled, switch to the next allocation.
+		 * Otherwise advance within the contiguous region.
+		 */
+		if (ioc->rdpq_array_enable) {
+			reply_q->reply_post_free =
+				ioc->reply_post[index++].reply_post_free;
+		} else {
+			reply_q->reply_post_free = reply_post_free_contig;
+			reply_post_free_contig += ioc->reply_post_queue_depth;
+		}
+
 		reply_q->reply_post_host_index = 0;
-		reply_q->reply_post_free = (Mpi2ReplyDescriptorsUnion_t *)
-		    reply_post_free;
 		for (i = 0; i < ioc->reply_post_queue_depth; i++)
 			reply_q->reply_post_free[i].Words =
 			    cpu_to_le64(ULLONG_MAX);
 		if (!_base_is_controller_msix_enabled(ioc))
 			goto skip_init_reply_post_free_queue;
-		/*
-		 * If RDPQ is enabled, switch to the next allocation.
-		 * Otherwise advance within the contiguous region.
-		 */
-		if (ioc->rdpq_array_enable)
-			reply_post_free = (long)
-			    ioc->reply_post[++index].reply_post_free;
-		else
-			reply_post_free += reply_post_free_sz;
 	}
  skip_init_reply_post_free_queue:
 
@@ -5201,17 +5215,6 @@ mpt3sas_base_attach(struct MPT3SAS_ADAPT
 	if (r)
 		goto out_free_resources;
 
-	if (ioc->is_warpdrive) {
-		ioc->reply_post_host_index[0] = (resource_size_t __iomem *)
-		    &ioc->chip->ReplyPostHostIndex;
-
-		for (i = 1; i < ioc->cpu_msix_table_sz; i++)
-			ioc->reply_post_host_index[i] =
-			(resource_size_t __iomem *)
-			((u8 __iomem *)&ioc->chip->Doorbell + (0x4000 + ((i - 1)
-			* 4)));
-	}
-
 	pci_set_drvdata(ioc->pdev, ioc->shost);
 	r = _base_get_ioc_facts(ioc, CAN_SLEEP);
 	if (r)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/mpt3sas/mpt3sas_base.h linux-libre-4.4.107-gnu/drivers/scsi/mpt3sas/mpt3sas_base.h
--- linux-libre-4.4-gnu/drivers/scsi/mpt3sas/mpt3sas_base.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/mpt3sas/mpt3sas_base.h	2017-12-20 04:05:01.000000000 -0500
@@ -390,6 +390,7 @@ struct MPT3SAS_TARGET {
  * @eedp_enable: eedp support enable bit
  * @eedp_type: 0(type_1), 1(type_2), 2(type_3)
  * @eedp_block_length: block size
+ * @ata_command_pending: SATL passthrough outstanding for device
  */
 struct MPT3SAS_DEVICE {
 	struct MPT3SAS_TARGET *sas_target;
@@ -398,6 +399,17 @@ struct MPT3SAS_DEVICE {
 	u8	configured_lun;
 	u8	block;
 	u8	tlr_snoop_check;
+	/*
+	 * Bug workaround for SATL handling: the mpt2/3sas firmware
+	 * doesn't return BUSY or TASK_SET_FULL for subsequent
+	 * commands while a SATL pass through is in operation as the
+	 * spec requires, it simply does nothing with them until the
+	 * pass through completes, causing them possibly to timeout if
+	 * the passthrough is a long executing command (like format or
+	 * secure erase).  This variable allows us to do the right
+	 * thing while a SATL command is pending.
+	 */
+	unsigned long ata_command_pending;
 };
 
 #define MPT3_CMD_NOT_USED	0x8000	/* free */
@@ -643,6 +655,7 @@ struct chain_tracker {
  * @cb_idx: callback index
  * @direct_io: To indicate whether I/O is direct (WARPDRIVE)
  * @tracker_list: list of free request (ioc->free_list)
+ * @msix_io: IO's msix
  */
 struct scsiio_tracker {
 	u16	smid;
@@ -651,6 +664,7 @@ struct scsiio_tracker {
 	u8	direct_io;
 	struct list_head chain_list;
 	struct list_head tracker_list;
+	u16     msix_io;
 };
 
 /**
@@ -1213,7 +1227,8 @@ void mpt3sas_base_put_smid_scsi_io(struc
 	u16 handle);
 void mpt3sas_base_put_smid_fast_path(struct MPT3SAS_ADAPTER *ioc, u16 smid,
 	u16 handle);
-void mpt3sas_base_put_smid_hi_priority(struct MPT3SAS_ADAPTER *ioc, u16 smid);
+void mpt3sas_base_put_smid_hi_priority(struct MPT3SAS_ADAPTER *ioc,
+	u16 smid, u16 msix_task);
 void mpt3sas_base_put_smid_default(struct MPT3SAS_ADAPTER *ioc, u16 smid);
 void mpt3sas_base_initialize_callback_handler(void);
 u8 mpt3sas_base_register_callback_handler(MPT_CALLBACK cb_func);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/mpt3sas/mpt3sas_ctl.c linux-libre-4.4.107-gnu/drivers/scsi/mpt3sas/mpt3sas_ctl.c
--- linux-libre-4.4-gnu/drivers/scsi/mpt3sas/mpt3sas_ctl.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/mpt3sas/mpt3sas_ctl.c	2017-12-20 04:05:01.000000000 -0500
@@ -817,7 +817,7 @@ _ctl_do_mpt_command(struct MPT3SAS_ADAPT
 		    tm_request->DevHandle));
 		ioc->build_sg_mpi(ioc, psge, data_out_dma, data_out_sz,
 		    data_in_dma, data_in_sz);
-		mpt3sas_base_put_smid_hi_priority(ioc, smid);
+		mpt3sas_base_put_smid_hi_priority(ioc, smid, 0);
 		break;
 	}
 	case MPI2_FUNCTION_SMP_PASSTHROUGH:
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/mpt3sas/mpt3sas_scsih.c linux-libre-4.4.107-gnu/drivers/scsi/mpt3sas/mpt3sas_scsih.c
--- linux-libre-4.4-gnu/drivers/scsi/mpt3sas/mpt3sas_scsih.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/mpt3sas/mpt3sas_scsih.c	2017-12-20 04:05:01.000000000 -0500
@@ -51,6 +51,7 @@
 #include <linux/workqueue.h>
 #include <linux/delay.h>
 #include <linux/pci.h>
+#include <linux/pci-aspm.h>
 #include <linux/interrupt.h>
 #include <linux/aer.h>
 #include <linux/raid_class.h>
@@ -1275,9 +1276,9 @@ scsih_target_alloc(struct scsi_target *s
 			sas_target_priv_data->handle = raid_device->handle;
 			sas_target_priv_data->sas_address = raid_device->wwid;
 			sas_target_priv_data->flags |= MPT_TARGET_FLAGS_VOLUME;
-			sas_target_priv_data->raid_device = raid_device;
 			if (ioc->is_warpdrive)
-				raid_device->starget = starget;
+				sas_target_priv_data->raid_device = raid_device;
+			raid_device->starget = starget;
 		}
 		spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
 		return 0;
@@ -2193,6 +2194,7 @@ mpt3sas_scsih_issue_tm(struct MPT3SAS_AD
 	unsigned long timeleft;
 	struct scsiio_tracker *scsi_lookup = NULL;
 	int rc;
+	u16 msix_task = 0;
 
 	if (m_type == TM_MUTEX_ON)
 		mutex_lock(&ioc->tm_cmds.mutex);
@@ -2256,7 +2258,12 @@ mpt3sas_scsih_issue_tm(struct MPT3SAS_AD
 	int_to_scsilun(lun, (struct scsi_lun *)mpi_request->LUN);
 	mpt3sas_scsih_set_tm_flag(ioc, handle);
 	init_completion(&ioc->tm_cmds.done);
-	mpt3sas_base_put_smid_hi_priority(ioc, smid);
+	if ((type == MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK) &&
+			(scsi_lookup->msix_io < ioc->reply_queue_count))
+		msix_task = scsi_lookup->msix_io;
+	else
+		msix_task = 0;
+	mpt3sas_base_put_smid_hi_priority(ioc, smid, msix_task);
 	timeleft = wait_for_completion_timeout(&ioc->tm_cmds.done, timeout*HZ);
 	if (!(ioc->tm_cmds.status & MPT3_CMD_COMPLETE)) {
 		pr_err(MPT3SAS_FMT "%s: timeout\n",
@@ -3151,7 +3158,7 @@ _scsih_tm_tr_send(struct MPT3SAS_ADAPTER
 	mpi_request->Function = MPI2_FUNCTION_SCSI_TASK_MGMT;
 	mpi_request->DevHandle = cpu_to_le16(handle);
 	mpi_request->TaskType = MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET;
-	mpt3sas_base_put_smid_hi_priority(ioc, smid);
+	mpt3sas_base_put_smid_hi_priority(ioc, smid, 0);
 	mpt3sas_trigger_master(ioc, MASTER_TRIGGER_DEVICE_REMOVAL);
 
 out:
@@ -3332,7 +3339,7 @@ _scsih_tm_tr_volume_send(struct MPT3SAS_
 	mpi_request->Function = MPI2_FUNCTION_SCSI_TASK_MGMT;
 	mpi_request->DevHandle = cpu_to_le16(handle);
 	mpi_request->TaskType = MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET;
-	mpt3sas_base_put_smid_hi_priority(ioc, smid);
+	mpt3sas_base_put_smid_hi_priority(ioc, smid, 0);
 }
 
 /**
@@ -3700,6 +3707,20 @@ _scsih_temp_threshold_events(struct MPT3
 	}
 }
 
+static int _scsih_set_satl_pending(struct scsi_cmnd *scmd, bool pending)
+{
+	struct MPT3SAS_DEVICE *priv = scmd->device->hostdata;
+
+	if (scmd->cmnd[0] != ATA_12 && scmd->cmnd[0] != ATA_16)
+		return 0;
+
+	if (pending)
+		return test_and_set_bit(0, &priv->ata_command_pending);
+
+	clear_bit(0, &priv->ata_command_pending);
+	return 0;
+}
+
 /**
  * _scsih_flush_running_cmds - completing outstanding commands.
  * @ioc: per adapter object
@@ -3721,6 +3742,7 @@ _scsih_flush_running_cmds(struct MPT3SAS
 		if (!scmd)
 			continue;
 		count++;
+		_scsih_set_satl_pending(scmd, false);
 		mpt3sas_base_free_smid(ioc, smid);
 		scsi_dma_unmap(scmd);
 		if (ioc->pci_error_recovery)
@@ -3825,8 +3847,6 @@ _scsih_eedp_error_handling(struct scsi_c
 	    SAM_STAT_CHECK_CONDITION;
 }
 
-
-
 /**
  * scsih_qcmd - main scsi request entry point
  * @scmd: pointer to scsi command object
@@ -3866,6 +3886,19 @@ scsih_qcmd(struct Scsi_Host *shost, stru
 		return 0;
 	}
 
+	/*
+	 * Bug work around for firmware SATL handling.  The loop
+	 * is based on atomic operations and ensures consistency
+	 * since we're lockless at this point
+	 */
+	do {
+		if (test_bit(0, &sas_device_priv_data->ata_command_pending)) {
+			scmd->result = SAM_STAT_BUSY;
+			scmd->scsi_done(scmd);
+			return 0;
+		}
+	} while (_scsih_set_satl_pending(scmd, true));
+
 	sas_target_priv_data = sas_device_priv_data->sas_target;
 
 	/* invalid device handle */
@@ -4419,12 +4452,15 @@ _scsih_io_done(struct MPT3SAS_ADAPTER *i
 	struct MPT3SAS_DEVICE *sas_device_priv_data;
 	u32 response_code = 0;
 	unsigned long flags;
+	unsigned int sector_sz;
 
 	mpi_reply = mpt3sas_base_get_reply_virt_addr(ioc, reply);
 	scmd = _scsih_scsi_lookup_get_clear(ioc, smid);
 	if (scmd == NULL)
 		return 1;
 
+	_scsih_set_satl_pending(scmd, false);
+
 	mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
 
 	if (mpi_reply == NULL) {
@@ -4475,6 +4511,20 @@ _scsih_io_done(struct MPT3SAS_ADAPTER *i
 	}
 
 	xfer_cnt = le32_to_cpu(mpi_reply->TransferCount);
+
+	/* In case of bogus fw or device, we could end up having
+	 * unaligned partial completion. We can force alignment here,
+	 * then scsi-ml does not need to handle this misbehavior.
+	 */
+	sector_sz = scmd->device->sector_size;
+	if (unlikely(scmd->request->cmd_type == REQ_TYPE_FS && sector_sz &&
+		     xfer_cnt % sector_sz)) {
+		sdev_printk(KERN_INFO, scmd->device,
+		    "unaligned partial completion avoided (xfer_cnt=%u, sector_sz=%u)\n",
+			    xfer_cnt, sector_sz);
+		xfer_cnt = round_down(xfer_cnt, sector_sz);
+	}
+
 	scsi_set_resid(scmd, scsi_bufflen(scmd) - xfer_cnt);
 	if (ioc_status & MPI2_IOCSTATUS_FLAG_LOG_INFO_AVAILABLE)
 		log_info =  le32_to_cpu(mpi_reply->IOCLogInfo);
@@ -4504,7 +4554,7 @@ _scsih_io_done(struct MPT3SAS_ADAPTER *i
 			    le16_to_cpu(mpi_reply->DevHandle));
 		mpt3sas_trigger_scsi(ioc, data.skey, data.asc, data.ascq);
 
-		if (!(ioc->logging_level & MPT_DEBUG_REPLY) &&
+		if ((ioc->logging_level & MPT_DEBUG_REPLY) &&
 		     ((scmd->sense_buffer[2] == UNIT_ATTENTION) ||
 		     (scmd->sense_buffer[2] == MEDIUM_ERROR) ||
 		     (scmd->sense_buffer[2] == HARDWARE_ERROR)))
@@ -8461,6 +8511,8 @@ _scsih_probe(struct pci_dev *pdev, const
 
 	switch (hba_mpi_version) {
 	case MPI2_VERSION:
+		pci_disable_link_state(pdev, PCIE_LINK_STATE_L0S |
+			PCIE_LINK_STATE_L1 | PCIE_LINK_STATE_CLKPM);
 		/* Use mpt2sas driver host template for SAS 2.0 HBA's */
 		shost = scsi_host_alloc(&mpt2sas_driver_template,
 		  sizeof(struct MPT3SAS_ADAPTER));
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/mvsas/mv_94xx.c linux-libre-4.4.107-gnu/drivers/scsi/mvsas/mv_94xx.c
--- linux-libre-4.4-gnu/drivers/scsi/mvsas/mv_94xx.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/mvsas/mv_94xx.c	2017-12-20 04:05:01.000000000 -0500
@@ -621,7 +621,7 @@ static void mvs_94xx_command_active(stru
 {
 	u32 tmp;
 	tmp = mvs_cr32(mvi, MVS_COMMAND_ACTIVE+(slot_idx >> 3));
-	if (tmp && 1 << (slot_idx % 32)) {
+	if (tmp & 1 << (slot_idx % 32)) {
 		mv_printk("command active %08X,  slot [%x].\n", tmp, slot_idx);
 		mvs_cw32(mvi, MVS_COMMAND_ACTIVE + (slot_idx >> 3),
 			1 << (slot_idx % 32));
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/mvsas/mv_sas.c linux-libre-4.4.107-gnu/drivers/scsi/mvsas/mv_sas.c
--- linux-libre-4.4-gnu/drivers/scsi/mvsas/mv_sas.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/mvsas/mv_sas.c	2017-12-20 04:05:01.000000000 -0500
@@ -737,8 +737,8 @@ static int mvs_task_prep(struct sas_task
 			mv_dprintk("device %016llx not ready.\n",
 				SAS_ADDR(dev->sas_addr));
 
-			rc = SAS_PHY_DOWN;
-			return rc;
+		rc = SAS_PHY_DOWN;
+		return rc;
 	}
 	tei.port = dev->port->lldd_port;
 	if (tei.port && !tei.port->port_attached && !tmf) {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/qla1280.c linux-libre-4.4.107-gnu/drivers/scsi/qla1280.c
--- linux-libre-4.4-gnu/drivers/scsi/qla1280.c	2016-01-10 21:13:59.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/qla1280.c	2017-12-20 11:42:53.000000000 -0500
@@ -4214,7 +4214,7 @@ static struct scsi_host_template qla1280
 	.eh_bus_reset_handler	= qla1280_eh_bus_reset,
 	.eh_host_reset_handler	= qla1280_eh_adapter_reset,
 	.bios_param		= qla1280_biosparam,
-	.can_queue		= 0xfffff,
+	.can_queue		= MAX_OUTSTANDING_COMMANDS,
 	.this_id		= -1,
 	.sg_tablesize		= SG_ALL,
 	.use_clustering		= ENABLE_CLUSTERING,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/qla2xxx/qla_attr.c linux-libre-4.4.107-gnu/drivers/scsi/qla2xxx/qla_attr.c
--- linux-libre-4.4-gnu/drivers/scsi/qla2xxx/qla_attr.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/qla2xxx/qla_attr.c	2017-12-20 04:05:01.000000000 -0500
@@ -329,12 +329,15 @@ qla2x00_sysfs_read_optrom(struct file *f
 	struct qla_hw_data *ha = vha->hw;
 	ssize_t rval = 0;
 
+	mutex_lock(&ha->optrom_mutex);
+
 	if (ha->optrom_state != QLA_SREADING)
-		return 0;
+		goto out;
 
-	mutex_lock(&ha->optrom_mutex);
 	rval = memory_read_from_buffer(buf, count, &off, ha->optrom_buffer,
 	    ha->optrom_region_size);
+
+out:
 	mutex_unlock(&ha->optrom_mutex);
 
 	return rval;
@@ -349,14 +352,19 @@ qla2x00_sysfs_write_optrom(struct file *
 	    struct device, kobj)));
 	struct qla_hw_data *ha = vha->hw;
 
-	if (ha->optrom_state != QLA_SWRITING)
+	mutex_lock(&ha->optrom_mutex);
+
+	if (ha->optrom_state != QLA_SWRITING) {
+		mutex_unlock(&ha->optrom_mutex);
 		return -EINVAL;
-	if (off > ha->optrom_region_size)
+	}
+	if (off > ha->optrom_region_size) {
+		mutex_unlock(&ha->optrom_mutex);
 		return -ERANGE;
+	}
 	if (off + count > ha->optrom_region_size)
 		count = ha->optrom_region_size - off;
 
-	mutex_lock(&ha->optrom_mutex);
 	memcpy(&ha->optrom_buffer[off], buf, count);
 	mutex_unlock(&ha->optrom_mutex);
 
@@ -396,6 +404,8 @@ qla2x00_sysfs_write_optrom_ctl(struct fi
 		return -EINVAL;
 	if (start > ha->optrom_size)
 		return -EINVAL;
+	if (size > ha->optrom_size - start)
+		size = ha->optrom_size - start;
 
 	mutex_lock(&ha->optrom_mutex);
 	switch (val) {
@@ -421,8 +431,7 @@ qla2x00_sysfs_write_optrom_ctl(struct fi
 		}
 
 		ha->optrom_region_start = start;
-		ha->optrom_region_size = start + size > ha->optrom_size ?
-		    ha->optrom_size - start : size;
+		ha->optrom_region_size = start + size;
 
 		ha->optrom_state = QLA_SREADING;
 		ha->optrom_buffer = vmalloc(ha->optrom_region_size);
@@ -495,8 +504,7 @@ qla2x00_sysfs_write_optrom_ctl(struct fi
 		}
 
 		ha->optrom_region_start = start;
-		ha->optrom_region_size = start + size > ha->optrom_size ?
-		    ha->optrom_size - start : size;
+		ha->optrom_region_size = start + size;
 
 		ha->optrom_state = QLA_SWRITING;
 		ha->optrom_buffer = vmalloc(ha->optrom_region_size);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/qla2xxx/qla_init.c linux-libre-4.4.107-gnu/drivers/scsi/qla2xxx/qla_init.c
--- linux-libre-4.4-gnu/drivers/scsi/qla2xxx/qla_init.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/qla2xxx/qla_init.c	2017-12-20 04:05:01.000000000 -0500
@@ -2192,7 +2192,7 @@ qla2x00_init_rings(scsi_qla_host_t *vha)
 	/* Clear outstanding commands array. */
 	for (que = 0; que < ha->max_req_queues; que++) {
 		req = ha->req_q_map[que];
-		if (!req)
+		if (!req || !test_bit(que, ha->req_qid_map))
 			continue;
 		req->out_ptr = (void *)(req->ring + req->length);
 		*req->out_ptr = 0;
@@ -2209,7 +2209,7 @@ qla2x00_init_rings(scsi_qla_host_t *vha)
 
 	for (que = 0; que < ha->max_rsp_queues; que++) {
 		rsp = ha->rsp_q_map[que];
-		if (!rsp)
+		if (!rsp || !test_bit(que, ha->rsp_qid_map))
 			continue;
 		rsp->in_ptr = (void *)(rsp->ring + rsp->length);
 		*rsp->in_ptr = 0;
@@ -4961,7 +4961,7 @@ qla25xx_init_queues(struct qla_hw_data *
 
 	for (i = 1; i < ha->max_rsp_queues; i++) {
 		rsp = ha->rsp_q_map[i];
-		if (rsp) {
+		if (rsp && test_bit(i, ha->rsp_qid_map)) {
 			rsp->options &= ~BIT_0;
 			ret = qla25xx_init_rsp_que(base_vha, rsp);
 			if (ret != QLA_SUCCESS)
@@ -4976,8 +4976,8 @@ qla25xx_init_queues(struct qla_hw_data *
 	}
 	for (i = 1; i < ha->max_req_queues; i++) {
 		req = ha->req_q_map[i];
-		if (req) {
-		/* Clear outstanding commands array. */
+		if (req && test_bit(i, ha->req_qid_map)) {
+			/* Clear outstanding commands array. */
 			req->options &= ~BIT_0;
 			ret = qla25xx_init_req_que(base_vha, req);
 			if (ret != QLA_SUCCESS)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/qla2xxx/qla_isr.c linux-libre-4.4.107-gnu/drivers/scsi/qla2xxx/qla_isr.c
--- linux-libre-4.4-gnu/drivers/scsi/qla2xxx/qla_isr.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/qla2xxx/qla_isr.c	2017-12-20 04:05:01.000000000 -0500
@@ -2466,6 +2466,10 @@ qla2x00_error_entry(scsi_qla_host_t *vha
 	if (pkt->entry_status & RF_BUSY)
 		res = DID_BUS_BUSY << 16;
 
+	if (pkt->entry_type == NOTIFY_ACK_TYPE &&
+	    pkt->handle == QLA_TGT_SKIP_HANDLE)
+		return;
+
 	sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
 	if (sp) {
 		sp->done(ha, sp, res);
@@ -3018,9 +3022,9 @@ qla24xx_enable_msix(struct qla_hw_data *
 		    "MSI-X: Failed to enable support "
 		    "-- %d/%d\n Retry with %d vectors.\n",
 		    ha->msix_count, ret, ret);
+		ha->msix_count = ret;
+		ha->max_rsp_queues = ha->msix_count - 1;
 	}
-	ha->msix_count = ret;
-	ha->max_rsp_queues = ha->msix_count - 1;
 	ha->msix_entries = kzalloc(sizeof(struct qla_msix_entry) *
 				ha->msix_count, GFP_KERNEL);
 	if (!ha->msix_entries) {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/qla2xxx/qla_mid.c linux-libre-4.4.107-gnu/drivers/scsi/qla2xxx/qla_mid.c
--- linux-libre-4.4-gnu/drivers/scsi/qla2xxx/qla_mid.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/qla2xxx/qla_mid.c	2017-12-20 04:05:01.000000000 -0500
@@ -600,7 +600,7 @@ qla25xx_delete_queues(struct scsi_qla_ho
 	/* Delete request queues */
 	for (cnt = 1; cnt < ha->max_req_queues; cnt++) {
 		req = ha->req_q_map[cnt];
-		if (req) {
+		if (req && test_bit(cnt, ha->req_qid_map)) {
 			ret = qla25xx_delete_req_que(vha, req);
 			if (ret != QLA_SUCCESS) {
 				ql_log(ql_log_warn, vha, 0x00ea,
@@ -614,7 +614,7 @@ qla25xx_delete_queues(struct scsi_qla_ho
 	/* Delete response queues */
 	for (cnt = 1; cnt < ha->max_rsp_queues; cnt++) {
 		rsp = ha->rsp_q_map[cnt];
-		if (rsp) {
+		if (rsp && test_bit(cnt, ha->rsp_qid_map)) {
 			ret = qla25xx_delete_rsp_que(vha, rsp);
 			if (ret != QLA_SUCCESS) {
 				ql_log(ql_log_warn, vha, 0x00eb,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/qla2xxx/qla_os.c linux-libre-4.4.107-gnu/drivers/scsi/qla2xxx/qla_os.c
--- linux-libre-4.4-gnu/drivers/scsi/qla2xxx/qla_os.c	2016-01-10 21:14:18.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/qla2xxx/qla_os.c	2017-12-20 11:43:23.000000000 -0500
@@ -397,6 +397,9 @@ static void qla2x00_free_queues(struct q
 	int cnt;
 
 	for (cnt = 0; cnt < ha->max_req_queues; cnt++) {
+		if (!test_bit(cnt, ha->req_qid_map))
+			continue;
+
 		req = ha->req_q_map[cnt];
 		qla2x00_free_req_que(ha, req);
 	}
@@ -404,6 +407,9 @@ static void qla2x00_free_queues(struct q
 	ha->req_q_map = NULL;
 
 	for (cnt = 0; cnt < ha->max_rsp_queues; cnt++) {
+		if (!test_bit(cnt, ha->rsp_qid_map))
+			continue;
+
 		rsp = ha->rsp_q_map[cnt];
 		qla2x00_free_rsp_que(ha, rsp);
 	}
@@ -2251,6 +2257,8 @@ qla2xxx_scan_finished(struct Scsi_Host *
 {
 	scsi_qla_host_t *vha = shost_priv(shost);
 
+	if (test_bit(UNLOADING, &vha->dpc_flags))
+		return 1;
 	if (!vha->host)
 		return 1;
 	if (time > vha->hw->loop_reset_delay * HZ)
@@ -2303,10 +2311,10 @@ qla2x00_probe_one(struct pci_dev *pdev,
 
 	if (mem_only) {
 		if (pci_enable_device_mem(pdev))
-			goto probe_out;
+			return ret;
 	} else {
 		if (pci_enable_device(pdev))
-			goto probe_out;
+			return ret;
 	}
 
 	/* This may fail but that's ok */
@@ -2316,7 +2324,7 @@ qla2x00_probe_one(struct pci_dev *pdev,
 	if (!ha) {
 		ql_log_pci(ql_log_fatal, pdev, 0x0009,
 		    "Unable to allocate memory for ha.\n");
-		goto probe_out;
+		goto disable_device;
 	}
 	ql_dbg_pci(ql_dbg_init, pdev, 0x000a,
 	    "Memory allocated for ha=%p.\n", ha);
@@ -2915,7 +2923,7 @@ iospace_config_failed:
 	kfree(ha);
 	ha = NULL;
 
-probe_out:
+disable_device:
 	pci_disable_device(pdev);
 	return ret;
 }
@@ -3357,7 +3365,7 @@ qla2x00_mem_alloc(struct qla_hw_data *ha
 				sizeof(struct ct6_dsd), 0,
 				SLAB_HWCACHE_ALIGN, NULL);
 			if (!ctx_cachep)
-				goto fail_free_gid_list;
+				goto fail_free_srb_mempool;
 		}
 		ha->ctx_mempool = mempool_create_slab_pool(SRB_MIN_REQ,
 			ctx_cachep);
@@ -3510,7 +3518,7 @@ qla2x00_mem_alloc(struct qla_hw_data *ha
 	ha->loop_id_map = kzalloc(BITS_TO_LONGS(LOOPID_MAP_SIZE) * sizeof(long),
 	    GFP_KERNEL);
 	if (!ha->loop_id_map)
-		goto fail_async_pd;
+		goto fail_loop_id_map;
 	else {
 		qla2x00_set_reserved_loop_ids(ha);
 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0123,
@@ -3519,6 +3527,8 @@ qla2x00_mem_alloc(struct qla_hw_data *ha
 
 	return 0;
 
+fail_loop_id_map:
+	dma_pool_free(ha->s_dma_pool, ha->async_pd, ha->async_pd_dma);
 fail_async_pd:
 	dma_pool_free(ha->s_dma_pool, ha->ex_init_cb, ha->ex_init_cb_dma);
 fail_ex_init_cb:
@@ -3546,6 +3556,10 @@ fail_free_ms_iocb:
 	dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
 	ha->ms_iocb = NULL;
 	ha->ms_iocb_dma = 0;
+
+	if (ha->sns_cmd)
+		dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
+		    ha->sns_cmd, ha->sns_cmd_dma);
 fail_dma_pool:
 	if (IS_QLA82XX(ha) || ql2xenabledif) {
 		dma_pool_destroy(ha->fcp_cmnd_dma_pool);
@@ -3563,10 +3577,12 @@ fail_free_nvram:
 	kfree(ha->nvram);
 	ha->nvram = NULL;
 fail_free_ctx_mempool:
-	mempool_destroy(ha->ctx_mempool);
+	if (ha->ctx_mempool)
+		mempool_destroy(ha->ctx_mempool);
 	ha->ctx_mempool = NULL;
 fail_free_srb_mempool:
-	mempool_destroy(ha->srb_mempool);
+	if (ha->srb_mempool)
+		mempool_destroy(ha->srb_mempool);
 	ha->srb_mempool = NULL;
 fail_free_gid_list:
 	dma_free_coherent(&ha->pdev->dev, qla2x00_gid_list_size(ha),
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/qla2xxx/qla_target.c linux-libre-4.4.107-gnu/drivers/scsi/qla2xxx/qla_target.c
--- linux-libre-4.4-gnu/drivers/scsi/qla2xxx/qla_target.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/qla2xxx/qla_target.c	2017-12-20 04:05:01.000000000 -0500
@@ -1578,7 +1578,7 @@ void qlt_xmit_tm_rsp(struct qla_tgt_mgmt
 		qlt_send_notify_ack(vha, &mcmd->orig_iocb.imm_ntfy,
 		    0, 0, 0, 0, 0, 0);
 	else {
-		if (mcmd->se_cmd.se_tmr_req->function == TMR_ABORT_TASK)
+		if (mcmd->orig_iocb.atio.u.raw.entry_type == ABTS_RECV_24XX)
 			qlt_24xx_send_abts_resp(vha, &mcmd->orig_iocb.abts,
 			    mcmd->fc_tm_rsp, false);
 		else
@@ -2865,7 +2865,7 @@ static int __qlt_send_term_imm_notif(str
 
 	pkt->entry_type = NOTIFY_ACK_TYPE;
 	pkt->entry_count = 1;
-	pkt->handle = QLA_TGT_SKIP_HANDLE | CTIO_COMPLETION_HANDLE_MARK;
+	pkt->handle = QLA_TGT_SKIP_HANDLE;
 
 	nack = (struct nack_to_isp *)pkt;
 	nack->ox_id = ntfy->ox_id;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/qla2xxx/qla_tmpl.c linux-libre-4.4.107-gnu/drivers/scsi/qla2xxx/qla_tmpl.c
--- linux-libre-4.4-gnu/drivers/scsi/qla2xxx/qla_tmpl.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/qla2xxx/qla_tmpl.c	2017-12-20 04:05:01.000000000 -0500
@@ -395,6 +395,10 @@ qla27xx_fwdt_entry_t263(struct scsi_qla_
 	if (ent->t263.queue_type == T263_QUEUE_TYPE_REQ) {
 		for (i = 0; i < vha->hw->max_req_queues; i++) {
 			struct req_que *req = vha->hw->req_q_map[i];
+
+			if (!test_bit(i, vha->hw->req_qid_map))
+				continue;
+
 			if (req || !buf) {
 				length = req ?
 				    req->length : REQUEST_ENTRY_CNT_24XX;
@@ -408,6 +412,10 @@ qla27xx_fwdt_entry_t263(struct scsi_qla_
 	} else if (ent->t263.queue_type == T263_QUEUE_TYPE_RSP) {
 		for (i = 0; i < vha->hw->max_rsp_queues; i++) {
 			struct rsp_que *rsp = vha->hw->rsp_q_map[i];
+
+			if (!test_bit(i, vha->hw->rsp_qid_map))
+				continue;
+
 			if (rsp || !buf) {
 				length = rsp ?
 				    rsp->length : RESPONSE_ENTRY_CNT_MQ;
@@ -634,6 +642,10 @@ qla27xx_fwdt_entry_t274(struct scsi_qla_
 	if (ent->t274.queue_type == T274_QUEUE_TYPE_REQ_SHAD) {
 		for (i = 0; i < vha->hw->max_req_queues; i++) {
 			struct req_que *req = vha->hw->req_q_map[i];
+
+			if (!test_bit(i, vha->hw->req_qid_map))
+				continue;
+
 			if (req || !buf) {
 				qla27xx_insert16(i, buf, len);
 				qla27xx_insert16(1, buf, len);
@@ -645,6 +657,10 @@ qla27xx_fwdt_entry_t274(struct scsi_qla_
 	} else if (ent->t274.queue_type == T274_QUEUE_TYPE_RSP_SHAD) {
 		for (i = 0; i < vha->hw->max_rsp_queues; i++) {
 			struct rsp_que *rsp = vha->hw->rsp_q_map[i];
+
+			if (!test_bit(i, vha->hw->rsp_qid_map))
+				continue;
+
 			if (rsp || !buf) {
 				qla27xx_insert16(i, buf, len);
 				qla27xx_insert16(1, buf, len);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/scsi_common.c linux-libre-4.4.107-gnu/drivers/scsi/scsi_common.c
--- linux-libre-4.4-gnu/drivers/scsi/scsi_common.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/scsi_common.c	2017-12-20 04:05:01.000000000 -0500
@@ -278,8 +278,16 @@ int scsi_set_sense_information(u8 *buf,
 		ucp[3] = 0;
 		put_unaligned_be64(info, &ucp[4]);
 	} else if ((buf[0] & 0x7f) == 0x70) {
-		buf[0] |= 0x80;
-		put_unaligned_be64(info, &buf[3]);
+		/*
+		 * Only set the 'VALID' bit if we can represent the value
+		 * correctly; otherwise just fill out the lower bytes and
+		 * clear the 'VALID' flag.
+		 */
+		if (info <= 0xffffffffUL)
+			buf[0] |= 0x80;
+		else
+			buf[0] &= 0x7f;
+		put_unaligned_be32((u32)info, &buf[3]);
 	}
 
 	return 0;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/scsi_debug.c linux-libre-4.4.107-gnu/drivers/scsi/scsi_debug.c
--- linux-libre-4.4-gnu/drivers/scsi/scsi_debug.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/scsi_debug.c	2017-12-20 04:05:01.000000000 -0500
@@ -4981,6 +4981,7 @@ static void __exit scsi_debug_exit(void)
 	bus_unregister(&pseudo_lld_bus);
 	root_device_unregister(pseudo_primary);
 
+	vfree(map_storep);
 	vfree(dif_storep);
 	vfree(fake_storep);
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/scsi_devinfo.c linux-libre-4.4.107-gnu/drivers/scsi/scsi_devinfo.c
--- linux-libre-4.4-gnu/drivers/scsi/scsi_devinfo.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/scsi_devinfo.c	2017-12-20 04:05:01.000000000 -0500
@@ -160,7 +160,7 @@ static struct {
 	{"DGC", "RAID", NULL, BLIST_SPARSELUN},	/* Dell PV 650F, storage on LUN 0 */
 	{"DGC", "DISK", NULL, BLIST_SPARSELUN},	/* Dell PV 650F, no storage on LUN 0 */
 	{"EMC",  "Invista", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
-	{"EMC", "SYMMETRIX", NULL, BLIST_SPARSELUN | BLIST_LARGELUN | BLIST_FORCELUN},
+	{"EMC", "SYMMETRIX", NULL, BLIST_SPARSELUN | BLIST_LARGELUN | BLIST_REPORTLUN2},
 	{"EMULEX", "MD21/S2     ESDI", NULL, BLIST_SINGLELUN},
 	{"easyRAID", "16P", NULL, BLIST_NOREPORTLUN},
 	{"easyRAID", "X6P", NULL, BLIST_NOREPORTLUN},
@@ -205,6 +205,7 @@ static struct {
 	{"Intel", "Multi-Flex", NULL, BLIST_NO_RSOC},
 	{"iRiver", "iFP Mass Driver", NULL, BLIST_NOT_LOCKABLE | BLIST_INQUIRY_36},
 	{"LASOUND", "CDX7405", "3.10", BLIST_MAX5LUN | BLIST_SINGLELUN},
+	{"Marvell", "Console", NULL, BLIST_SKIP_VPD_PAGES},
 	{"MATSHITA", "PD-1", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
 	{"MATSHITA", "DMC-LC5", NULL, BLIST_NOT_LOCKABLE | BLIST_INQUIRY_36},
 	{"MATSHITA", "DMC-LC40", NULL, BLIST_NOT_LOCKABLE | BLIST_INQUIRY_36},
@@ -226,7 +227,9 @@ static struct {
 	{"PIONEER", "CD-ROM DRM-624X", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
 	{"Promise", "VTrak E610f", NULL, BLIST_SPARSELUN | BLIST_NO_RSOC},
 	{"Promise", "", NULL, BLIST_SPARSELUN},
+	{"QEMU", "QEMU CD-ROM", NULL, BLIST_SKIP_VPD_PAGES},
 	{"QNAP", "iSCSI Storage", NULL, BLIST_MAX_1024},
+	{"SYNOLOGY", "iSCSI Storage", NULL, BLIST_MAX_1024},
 	{"QUANTUM", "XP34301", "1071", BLIST_NOTQ},
 	{"REGAL", "CDC-4X", NULL, BLIST_MAX5LUN | BLIST_SINGLELUN},
 	{"SanDisk", "ImageMate CF-SD1", NULL, BLIST_FORCELUN},
@@ -423,7 +426,7 @@ static struct scsi_dev_info_list *scsi_d
 	 * here, and we don't know what device it is
 	 * trying to work with, leave it as-is.
 	 */
-	vmax = 8;	/* max length of vendor */
+	vmax = sizeof(devinfo->vendor);
 	vskip = vendor;
 	while (vmax > 0 && *vskip == ' ') {
 		vmax--;
@@ -433,7 +436,7 @@ static struct scsi_dev_info_list *scsi_d
 	while (vmax > 0 && vskip[vmax - 1] == ' ')
 		--vmax;
 
-	mmax = 16;	/* max length of model */
+	mmax = sizeof(devinfo->model);
 	mskip = model;
 	while (mmax > 0 && *mskip == ' ') {
 		mmax--;
@@ -449,10 +452,12 @@ static struct scsi_dev_info_list *scsi_d
 			 * Behave like the older version of get_device_flags.
 			 */
 			if (memcmp(devinfo->vendor, vskip, vmax) ||
-					devinfo->vendor[vmax])
+					(vmax < sizeof(devinfo->vendor) &&
+						devinfo->vendor[vmax]))
 				continue;
 			if (memcmp(devinfo->model, mskip, mmax) ||
-					devinfo->model[mmax])
+					(mmax < sizeof(devinfo->model) &&
+						devinfo->model[mmax]))
 				continue;
 			return devinfo;
 		} else {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/scsi_dh.c linux-libre-4.4.107-gnu/drivers/scsi/scsi_dh.c
--- linux-libre-4.4-gnu/drivers/scsi/scsi_dh.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/scsi_dh.c	2017-12-20 04:05:01.000000000 -0500
@@ -289,20 +289,6 @@ int scsi_unregister_device_handler(struc
 }
 EXPORT_SYMBOL_GPL(scsi_unregister_device_handler);
 
-static struct scsi_device *get_sdev_from_queue(struct request_queue *q)
-{
-	struct scsi_device *sdev;
-	unsigned long flags;
-
-	spin_lock_irqsave(q->queue_lock, flags);
-	sdev = q->queuedata;
-	if (!sdev || !get_device(&sdev->sdev_gendev))
-		sdev = NULL;
-	spin_unlock_irqrestore(q->queue_lock, flags);
-
-	return sdev;
-}
-
 /*
  * scsi_dh_activate - activate the path associated with the scsi_device
  *      corresponding to the given request queue.
@@ -321,7 +307,7 @@ int scsi_dh_activate(struct request_queu
 	struct scsi_device *sdev;
 	int err = SCSI_DH_NOSYS;
 
-	sdev = get_sdev_from_queue(q);
+	sdev = scsi_device_from_queue(q);
 	if (!sdev) {
 		if (fn)
 			fn(data, err);
@@ -368,7 +354,7 @@ int scsi_dh_set_params(struct request_qu
 	struct scsi_device *sdev;
 	int err = -SCSI_DH_NOSYS;
 
-	sdev = get_sdev_from_queue(q);
+	sdev = scsi_device_from_queue(q);
 	if (!sdev)
 		return err;
 
@@ -391,7 +377,7 @@ int scsi_dh_attach(struct request_queue
 	struct scsi_device_handler *scsi_dh;
 	int err = 0;
 
-	sdev = get_sdev_from_queue(q);
+	sdev = scsi_device_from_queue(q);
 	if (!sdev)
 		return -ENODEV;
 
@@ -429,7 +415,7 @@ const char *scsi_dh_attached_handler_nam
 	struct scsi_device *sdev;
 	const char *handler_name = NULL;
 
-	sdev = get_sdev_from_queue(q);
+	sdev = scsi_device_from_queue(q);
 	if (!sdev)
 		return NULL;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/scsi_error.c linux-libre-4.4.107-gnu/drivers/scsi/scsi_error.c
--- linux-libre-4.4-gnu/drivers/scsi/scsi_error.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/scsi_error.c	2017-12-20 04:05:01.000000000 -0500
@@ -1127,7 +1127,6 @@ static int scsi_eh_action(struct scsi_cm
  */
 void scsi_eh_finish_cmd(struct scsi_cmnd *scmd, struct list_head *done_q)
 {
-	scmd->device->host->host_failed--;
 	scmd->eh_eflags = 0;
 	list_move_tail(&scmd->eh_entry, done_q);
 }
@@ -2226,6 +2225,9 @@ int scsi_error_handler(void *data)
 		else
 			scsi_unjam_host(shost);
 
+		/* All scmds have been handled */
+		shost->host_failed = 0;
+
 		/*
 		 * Note - if the above fails completely, the action is to take
 		 * individual devices offline and flush the queue of any
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/scsi_lib.c linux-libre-4.4.107-gnu/drivers/scsi/scsi_lib.c
--- linux-libre-4.4-gnu/drivers/scsi/scsi_lib.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/scsi_lib.c	2017-12-20 04:05:01.000000000 -0500
@@ -910,9 +910,12 @@ void scsi_io_completion(struct scsi_cmnd
 	}
 
 	/*
-	 * If we finished all bytes in the request we are done now.
+	 * special case: failed zero length commands always need to
+	 * drop down into the retry code. Otherwise, if we finished
+	 * all bytes in the request we are done now.
 	 */
-	if (!scsi_end_request(req, error, good_bytes, 0))
+	if (!(blk_rq_bytes(req) == 0 && error) &&
+	    !scsi_end_request(req, error, good_bytes, 0))
 		return;
 
 	/*
@@ -1117,7 +1120,8 @@ int scsi_init_io(struct scsi_cmnd *cmd)
 	bool is_mq = (rq->mq_ctx != NULL);
 	int error;
 
-	BUG_ON(!rq->nr_phys_segments);
+	if (WARN_ON_ONCE(!rq->nr_phys_segments))
+		return -EINVAL;
 
 	error = scsi_init_sgtable(rq, &cmd->sdb);
 	if (error)
@@ -2211,6 +2215,29 @@ void scsi_mq_destroy_tags(struct Scsi_Ho
 	blk_mq_free_tag_set(&shost->tag_set);
 }
 
+/**
+ * scsi_device_from_queue - return sdev associated with a request_queue
+ * @q: The request queue to return the sdev from
+ *
+ * Return the sdev associated with a request queue or NULL if the
+ * request_queue does not reference a SCSI device.
+ */
+struct scsi_device *scsi_device_from_queue(struct request_queue *q)
+{
+	struct scsi_device *sdev = NULL;
+
+	if (q->mq_ops) {
+		if (q->mq_ops == &scsi_mq_ops)
+			sdev = q->queuedata;
+	} else if (q->request_fn == scsi_request_fn)
+		sdev = q->queuedata;
+	if (!sdev || !get_device(&sdev->sdev_gendev))
+		sdev = NULL;
+
+	return sdev;
+}
+EXPORT_SYMBOL_GPL(scsi_device_from_queue);
+
 /*
  * Function:    scsi_block_requests()
  *
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/scsi_scan.c linux-libre-4.4.107-gnu/drivers/scsi/scsi_scan.c
--- linux-libre-4.4-gnu/drivers/scsi/scsi_scan.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/scsi_scan.c	2017-12-20 04:05:01.000000000 -0500
@@ -314,6 +314,7 @@ static void scsi_target_destroy(struct s
 	struct Scsi_Host *shost = dev_to_shost(dev->parent);
 	unsigned long flags;
 
+	BUG_ON(starget->state == STARGET_DEL);
 	starget->state = STARGET_DEL;
 	transport_destroy_device(dev);
 	spin_lock_irqsave(shost->host_lock, flags);
@@ -1458,12 +1459,12 @@ retry:
  out_err:
 	kfree(lun_data);
  out:
-	scsi_device_put(sdev);
 	if (scsi_device_created(sdev))
 		/*
 		 * the sdev we used didn't appear in the report luns scan
 		 */
 		__scsi_remove_device(sdev);
+	scsi_device_put(sdev);
 	return ret;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/scsi_sysfs.c linux-libre-4.4.107-gnu/drivers/scsi/scsi_sysfs.c
--- linux-libre-4.4-gnu/drivers/scsi/scsi_sysfs.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/scsi_sysfs.c	2017-12-20 04:05:01.000000000 -0500
@@ -1031,10 +1031,6 @@ int scsi_sysfs_add_sdev(struct scsi_devi
 	struct request_queue *rq = sdev->request_queue;
 	struct scsi_target *starget = sdev->sdev_target;
 
-	error = scsi_device_set_state(sdev, SDEV_RUNNING);
-	if (error)
-		return error;
-
 	error = scsi_target_add(starget);
 	if (error)
 		return error;
@@ -1058,11 +1054,12 @@ int scsi_sysfs_add_sdev(struct scsi_devi
 	}
 
 	error = scsi_dh_add_device(sdev);
-	if (error) {
+	if (error)
+		/*
+		 * device_handler is optional, so any error can be ignored
+		 */
 		sdev_printk(KERN_INFO, sdev,
 				"failed to add device handler: %d\n", error);
-		return error;
-	}
 
 	device_enable_async_suspend(&sdev->sdev_dev);
 	error = device_add(&sdev->sdev_dev);
@@ -1198,10 +1195,12 @@ void scsi_remove_target(struct device *d
 restart:
 	spin_lock_irqsave(shost->host_lock, flags);
 	list_for_each_entry(starget, &shost->__targets, siblings) {
-		if (starget->state == STARGET_DEL)
+		if (starget->state == STARGET_DEL ||
+		    starget->state == STARGET_REMOVE)
 			continue;
 		if (starget->dev.parent == dev || &starget->dev == dev) {
 			kref_get(&starget->reap_ref);
+			starget->state = STARGET_REMOVE;
 			spin_unlock_irqrestore(shost->host_lock, flags);
 			__scsi_remove_target(starget);
 			scsi_target_reap(starget);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/scsi_transport_iscsi.c linux-libre-4.4.107-gnu/drivers/scsi/scsi_transport_iscsi.c
--- linux-libre-4.4-gnu/drivers/scsi/scsi_transport_iscsi.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/scsi_transport_iscsi.c	2017-12-20 04:05:01.000000000 -0500
@@ -3697,7 +3697,7 @@ iscsi_if_rx(struct sk_buff *skb)
 		uint32_t group;
 
 		nlh = nlmsg_hdr(skb);
-		if (nlh->nlmsg_len < sizeof(*nlh) ||
+		if (nlh->nlmsg_len < sizeof(*nlh) + sizeof(*ev) ||
 		    skb->len < nlh->nlmsg_len) {
 			break;
 		}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/sd.c linux-libre-4.4.107-gnu/drivers/scsi/sd.c
--- linux-libre-4.4-gnu/drivers/scsi/sd.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/sd.c	2017-12-20 04:05:01.000000000 -0500
@@ -233,11 +233,15 @@ manage_start_stop_store(struct device *d
 {
 	struct scsi_disk *sdkp = to_scsi_disk(dev);
 	struct scsi_device *sdp = sdkp->device;
+	bool v;
 
 	if (!capable(CAP_SYS_ADMIN))
 		return -EACCES;
 
-	sdp->manage_start_stop = simple_strtoul(buf, NULL, 10);
+	if (kstrtobool(buf, &v))
+		return -EINVAL;
+
+	sdp->manage_start_stop = v;
 
 	return count;
 }
@@ -255,6 +259,7 @@ static ssize_t
 allow_restart_store(struct device *dev, struct device_attribute *attr,
 		    const char *buf, size_t count)
 {
+	bool v;
 	struct scsi_disk *sdkp = to_scsi_disk(dev);
 	struct scsi_device *sdp = sdkp->device;
 
@@ -264,7 +269,10 @@ allow_restart_store(struct device *dev,
 	if (sdp->type != TYPE_DISK)
 		return -EINVAL;
 
-	sdp->allow_restart = simple_strtoul(buf, NULL, 10);
+	if (kstrtobool(buf, &v))
+		return -EINVAL;
+
+	sdp->allow_restart = v;
 
 	return count;
 }
@@ -648,7 +656,7 @@ static void sd_config_discard(struct scs
 	 */
 	if (sdkp->lbprz) {
 		q->limits.discard_alignment = 0;
-		q->limits.discard_granularity = 1;
+		q->limits.discard_granularity = logical_block_size;
 	} else {
 		q->limits.discard_alignment = sdkp->unmap_alignment *
 			logical_block_size;
@@ -1275,18 +1283,19 @@ static int sd_getgeo(struct block_device
 	struct scsi_disk *sdkp = scsi_disk(bdev->bd_disk);
 	struct scsi_device *sdp = sdkp->device;
 	struct Scsi_Host *host = sdp->host;
+	sector_t capacity = logical_to_sectors(sdp, sdkp->capacity);
 	int diskinfo[4];
 
 	/* default to most commonly used values */
-        diskinfo[0] = 0x40;	/* 1 << 6 */
-       	diskinfo[1] = 0x20;	/* 1 << 5 */
-       	diskinfo[2] = sdkp->capacity >> 11;
-	
+	diskinfo[0] = 0x40;	/* 1 << 6 */
+	diskinfo[1] = 0x20;	/* 1 << 5 */
+	diskinfo[2] = capacity >> 11;
+
 	/* override with calculated, extended default, or driver values */
 	if (host->hostt->bios_param)
-		host->hostt->bios_param(sdp, bdev, sdkp->capacity, diskinfo);
+		host->hostt->bios_param(sdp, bdev, capacity, diskinfo);
 	else
-		scsicam_bios_param(bdev, sdkp->capacity, diskinfo);
+		scsicam_bios_param(bdev, capacity, diskinfo);
 
 	geo->heads = diskinfo[0];
 	geo->sectors = diskinfo[1];
@@ -1397,11 +1406,15 @@ static int media_not_present(struct scsi
  **/
 static unsigned int sd_check_events(struct gendisk *disk, unsigned int clearing)
 {
-	struct scsi_disk *sdkp = scsi_disk(disk);
-	struct scsi_device *sdp = sdkp->device;
+	struct scsi_disk *sdkp = scsi_disk_get(disk);
+	struct scsi_device *sdp;
 	struct scsi_sense_hdr *sshdr = NULL;
 	int retval;
 
+	if (!sdkp)
+		return 0;
+
+	sdp = sdkp->device;
 	SCSI_LOG_HLQUEUE(3, sd_printk(KERN_INFO, sdkp, "sd_check_events\n"));
 
 	/*
@@ -1458,6 +1471,7 @@ out:
 	kfree(sshdr);
 	retval = sdp->changed ? DISK_EVENT_MEDIA_CHANGE : 0;
 	sdp->changed = 0;
+	scsi_disk_put(sdkp);
 	return retval;
 }
 
@@ -2045,6 +2059,22 @@ static void read_capacity_error(struct s
 
 #define READ_CAPACITY_RETRIES_ON_RESET	10
 
+/*
+ * Ensure that we don't overflow sector_t when CONFIG_LBDAF is not set
+ * and the reported logical block size is bigger than 512 bytes. Note
+ * that last_sector is a u64 and therefore logical_to_sectors() is not
+ * applicable.
+ */
+static bool sd_addressable_capacity(u64 lba, unsigned int sector_size)
+{
+	u64 last_sector = (lba + 1ULL) << (ilog2(sector_size) - 9);
+
+	if (sizeof(sector_t) == 4 && last_sector > U32_MAX)
+		return false;
+
+	return true;
+}
+
 static int read_capacity_16(struct scsi_disk *sdkp, struct scsi_device *sdp,
 						unsigned char *buffer)
 {
@@ -2110,7 +2140,7 @@ static int read_capacity_16(struct scsi_
 		return -ENODEV;
 	}
 
-	if ((sizeof(sdkp->capacity) == 4) && (lba >= 0xffffffffULL)) {
+	if (!sd_addressable_capacity(lba, sector_size)) {
 		sd_printk(KERN_ERR, sdkp, "Too big for this kernel. Use a "
 			"kernel compiled with support for large block "
 			"devices.\n");
@@ -2196,7 +2226,7 @@ static int read_capacity_10(struct scsi_
 		return sector_size;
 	}
 
-	if ((sizeof(sdkp->capacity) == 4) && (lba == 0xffffffff)) {
+	if (!sd_addressable_capacity(lba, sector_size)) {
 		sd_printk(KERN_ERR, sdkp, "Too big for this kernel. Use a "
 			"kernel compiled with support for large block "
 			"devices.\n");
@@ -2337,14 +2367,6 @@ got_data:
 	if (sdkp->capacity > 0xffffffff)
 		sdp->use_16_for_rw = 1;
 
-	/* Rescale capacity to 512-byte units */
-	if (sector_size == 4096)
-		sdkp->capacity <<= 3;
-	else if (sector_size == 2048)
-		sdkp->capacity <<= 2;
-	else if (sector_size == 1024)
-		sdkp->capacity <<= 1;
-
 	blk_queue_physical_block_size(sdp->request_queue,
 				      sdkp->physical_block_size);
 	sdkp->device->sector_size = sector_size;
@@ -2552,7 +2574,8 @@ sd_read_cache_type(struct scsi_disk *sdk
 		if (sdp->broken_fua) {
 			sd_first_printk(KERN_NOTICE, sdkp, "Disabling FUA\n");
 			sdkp->DPOFUA = 0;
-		} else if (sdkp->DPOFUA && !sdkp->device->use_10_for_rw) {
+		} else if (sdkp->DPOFUA && !sdkp->device->use_10_for_rw &&
+			   !sdkp->device->use_16_for_rw) {
 			sd_first_printk(KERN_NOTICE, sdkp,
 				  "Uses READ/WRITE(6), disabling FUA\n");
 			sdkp->DPOFUA = 0;
@@ -2812,11 +2835,6 @@ static int sd_try_extended_inquiry(struc
 	return 0;
 }
 
-static inline u32 logical_to_sectors(struct scsi_device *sdev, u32 blocks)
-{
-	return blocks << (ilog2(sdev->sector_size) - 9);
-}
-
 /**
  *	sd_revalidate_disk - called the first time a new disk is seen,
  *	performs disk spin up, read_capacity, etc.
@@ -2868,8 +2886,6 @@ static int sd_revalidate_disk(struct gen
 		sd_read_write_same(sdkp, buffer);
 	}
 
-	sdkp->first_scan = 0;
-
 	/*
 	 * We now have all cache related info, determine how we deal
 	 * with flush requests.
@@ -2884,23 +2900,35 @@ static int sd_revalidate_disk(struct gen
 	q->limits.max_dev_sectors = logical_to_sectors(sdp, dev_max);
 
 	/*
-	 * Use the device's preferred I/O size for reads and writes
+	 * Determine the device's preferred I/O size for reads and writes
 	 * unless the reported value is unreasonably small, large, or
 	 * garbage.
 	 */
 	if (sdkp->opt_xfer_blocks &&
 	    sdkp->opt_xfer_blocks <= dev_max &&
 	    sdkp->opt_xfer_blocks <= SD_DEF_XFER_BLOCKS &&
-	    sdkp->opt_xfer_blocks * sdp->sector_size >= PAGE_CACHE_SIZE)
-		rw_max = q->limits.io_opt =
-			logical_to_sectors(sdp, sdkp->opt_xfer_blocks);
-	else
-		rw_max = BLK_DEF_MAX_SECTORS;
+	    logical_to_bytes(sdp, sdkp->opt_xfer_blocks) >= PAGE_CACHE_SIZE) {
+		q->limits.io_opt = logical_to_bytes(sdp, sdkp->opt_xfer_blocks);
+		rw_max = logical_to_sectors(sdp, sdkp->opt_xfer_blocks);
+	} else
+		rw_max = min_not_zero(logical_to_sectors(sdp, dev_max),
+				      (sector_t)BLK_DEF_MAX_SECTORS);
 
-	/* Combine with controller limits */
-	q->limits.max_sectors = min(rw_max, queue_max_hw_sectors(q));
+	/* Do not exceed controller limit */
+	rw_max = min(rw_max, queue_max_hw_sectors(q));
 
-	set_capacity(disk, sdkp->capacity);
+	/*
+	 * Only update max_sectors if previously unset or if the current value
+	 * exceeds the capabilities of the hardware.
+	 */
+	if (sdkp->first_scan ||
+	    q->limits.max_sectors > q->limits.max_dev_sectors ||
+	    q->limits.max_sectors > q->limits.max_hw_sectors)
+		q->limits.max_sectors = rw_max;
+
+	sdkp->first_scan = 0;
+
+	set_capacity(disk, logical_to_sectors(sdp, sdkp->capacity));
 	sd_config_write_same(sdkp);
 	kfree(buffer);
 
@@ -3268,8 +3296,8 @@ static int sd_suspend_common(struct devi
 	struct scsi_disk *sdkp = dev_get_drvdata(dev);
 	int ret = 0;
 
-	if (!sdkp)
-		return 0;	/* this can happen */
+	if (!sdkp)	/* E.g.: runtime suspend following sd_remove() */
+		return 0;
 
 	if (sdkp->WCE && sdkp->media_present) {
 		sd_printk(KERN_NOTICE, sdkp, "Synchronizing SCSI cache\n");
@@ -3308,6 +3336,9 @@ static int sd_resume(struct device *dev)
 {
 	struct scsi_disk *sdkp = dev_get_drvdata(dev);
 
+	if (!sdkp)	/* E.g.: runtime resume at the start of sd_probe() */
+		return 0;
+
 	if (!sdkp->device->manage_start_stop)
 		return 0;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/sd.h linux-libre-4.4.107-gnu/drivers/scsi/sd.h
--- linux-libre-4.4-gnu/drivers/scsi/sd.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/sd.h	2017-12-20 04:05:01.000000000 -0500
@@ -65,7 +65,7 @@ struct scsi_disk {
 	struct device	dev;
 	struct gendisk	*disk;
 	atomic_t	openers;
-	sector_t	capacity;	/* size in 512-byte sectors */
+	sector_t	capacity;	/* size in logical blocks */
 	u32		max_xfer_blocks;
 	u32		opt_xfer_blocks;
 	u32		max_ws_blocks;
@@ -146,6 +146,16 @@ static inline int scsi_medium_access_com
 	return 0;
 }
 
+static inline sector_t logical_to_sectors(struct scsi_device *sdev, sector_t blocks)
+{
+	return blocks << (ilog2(sdev->sector_size) - 9);
+}
+
+static inline unsigned int logical_to_bytes(struct scsi_device *sdev, sector_t blocks)
+{
+	return blocks * sdev->sector_size;
+}
+
 /*
  * A DIF-capable target device can be formatted with different
  * protection schemes.  Currently 0 through 3 are defined:
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/sg.c linux-libre-4.4.107-gnu/drivers/scsi/sg.c
--- linux-libre-4.4-gnu/drivers/scsi/sg.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/sg.c	2017-12-20 04:05:01.000000000 -0500
@@ -133,7 +133,7 @@ struct sg_device;		/* forward declaratio
 struct sg_fd;
 
 typedef struct sg_request {	/* SG_MAX_QUEUE requests outstanding per file */
-	struct sg_request *nextrp;	/* NULL -> tail request (slist) */
+	struct list_head entry;	/* list entry */
 	struct sg_fd *parentfp;	/* NULL -> not in use */
 	Sg_scatter_hold data;	/* hold buffer, perhaps scatter list */
 	sg_io_hdr_t header;	/* scsi command+info, see <scsi/sg.h> */
@@ -153,11 +153,11 @@ typedef struct sg_fd {		/* holds the sta
 	struct sg_device *parentdp;	/* owning device */
 	wait_queue_head_t read_wait;	/* queue read until command done */
 	rwlock_t rq_list_lock;	/* protect access to list in req_arr */
+	struct mutex f_mutex;	/* protect against changes in this fd */
 	int timeout;		/* defaults to SG_DEFAULT_TIMEOUT      */
 	int timeout_user;	/* defaults to SG_DEFAULT_TIMEOUT_USER */
 	Sg_scatter_hold reserve;	/* buffer held for this file descriptor */
-	unsigned save_scat_len;	/* original length of trunc. scat. element */
-	Sg_request *headrp;	/* head of request slist, NULL->empty */
+	struct list_head rq_list; /* head of request list */
 	struct fasync_struct *async_qp;	/* used by asynchronous notification */
 	Sg_request req_arr[SG_MAX_QUEUE];	/* used as singly-linked list */
 	char low_dma;		/* as in parent but possibly overridden to 1 */
@@ -166,6 +166,7 @@ typedef struct sg_fd {		/* holds the sta
 	unsigned char next_cmd_len; /* 0: automatic, >0: use on next write() */
 	char keep_orphan;	/* 0 -> drop orphan (def), 1 -> keep for read() */
 	char mmap_called;	/* 0 -> mmap() never called on this fd */
+	char res_in_use;	/* 1 -> 'reserve' array in use */
 	struct kref f_ref;
 	struct execute_work ew;
 } Sg_fd;
@@ -209,7 +210,6 @@ static void sg_remove_sfp(struct kref *)
 static Sg_request *sg_get_rq_mark(Sg_fd * sfp, int pack_id);
 static Sg_request *sg_add_request(Sg_fd * sfp);
 static int sg_remove_request(Sg_fd * sfp, Sg_request * srp);
-static int sg_res_in_use(Sg_fd * sfp);
 static Sg_device *sg_get_dev(int dev);
 static void sg_device_destroy(struct kref *kref);
 
@@ -592,6 +592,9 @@ sg_write(struct file *filp, const char _
 	sg_io_hdr_t *hp;
 	unsigned char cmnd[SG_MAX_CDB_SIZE];
 
+	if (unlikely(segment_eq(get_fs(), KERNEL_DS)))
+		return -EINVAL;
+
 	if ((!(sfp = (Sg_fd *) filp->private_data)) || (!(sdp = sfp->parentdp)))
 		return -ENXIO;
 	SCSI_LOG_TIMEOUT(3, sg_printk(KERN_INFO, sdp,
@@ -622,6 +625,7 @@ sg_write(struct file *filp, const char _
 	}
 	buf += SZ_SG_HEADER;
 	__get_user(opcode, buf);
+	mutex_lock(&sfp->f_mutex);
 	if (sfp->next_cmd_len > 0) {
 		cmd_size = sfp->next_cmd_len;
 		sfp->next_cmd_len = 0;	/* reset so only this write() effected */
@@ -630,6 +634,7 @@ sg_write(struct file *filp, const char _
 		if ((opcode >= 0xc0) && old_hdr.twelve_byte)
 			cmd_size = 12;
 	}
+	mutex_unlock(&sfp->f_mutex);
 	SCSI_LOG_TIMEOUT(4, sg_printk(KERN_INFO, sdp,
 		"sg_write:   scsi opcode=0x%02x, cmd_size=%d\n", (int) opcode, cmd_size));
 /* Determine buffer size.  */
@@ -652,7 +657,8 @@ sg_write(struct file *filp, const char _
 	else
 		hp->dxfer_direction = (mxsize > 0) ? SG_DXFER_FROM_DEV : SG_DXFER_NONE;
 	hp->dxfer_len = mxsize;
-	if (hp->dxfer_direction == SG_DXFER_TO_DEV)
+	if ((hp->dxfer_direction == SG_DXFER_TO_DEV) ||
+	    (hp->dxfer_direction == SG_DXFER_TO_FROM_DEV))
 		hp->dxferp = (char __user *)buf + cmd_size;
 	else
 		hp->dxferp = NULL;
@@ -728,7 +734,7 @@ sg_new_write(Sg_fd *sfp, struct file *fi
 			sg_remove_request(sfp, srp);
 			return -EINVAL;	/* either MMAP_IO or DIRECT_IO (not both) */
 		}
-		if (sg_res_in_use(sfp)) {
+		if (sfp->res_in_use) {
 			sg_remove_request(sfp, srp);
 			return -EBUSY;	/* reserve buffer already being used */
 		}
@@ -833,6 +839,39 @@ static int max_sectors_bytes(struct requ
 	return max_sectors << 9;
 }
 
+static void
+sg_fill_request_table(Sg_fd *sfp, sg_req_info_t *rinfo)
+{
+	Sg_request *srp;
+	int val;
+	unsigned int ms;
+
+	val = 0;
+	list_for_each_entry(srp, &sfp->rq_list, entry) {
+		if (val >= SG_MAX_QUEUE)
+			break;
+		rinfo[val].req_state = srp->done + 1;
+		rinfo[val].problem =
+			srp->header.masked_status &
+			srp->header.host_status &
+			srp->header.driver_status;
+		if (srp->done)
+			rinfo[val].duration =
+				srp->header.duration;
+		else {
+			ms = jiffies_to_msecs(jiffies);
+			rinfo[val].duration =
+				(ms > srp->header.duration) ?
+				(ms - srp->header.duration) : 0;
+		}
+		rinfo[val].orphan = srp->orphan;
+		rinfo[val].sg_io_owned = srp->sg_io_owned;
+		rinfo[val].pack_id = srp->header.pack_id;
+		rinfo[val].usr_ptr = srp->header.usr_ptr;
+		val++;
+	}
+}
+
 static long
 sg_ioctl(struct file *filp, unsigned int cmd_in, unsigned long arg)
 {
@@ -898,7 +937,7 @@ sg_ioctl(struct file *filp, unsigned int
 			return result;
 		if (val) {
 			sfp->low_dma = 1;
-			if ((0 == sfp->low_dma) && (0 == sg_res_in_use(sfp))) {
+			if ((0 == sfp->low_dma) && !sfp->res_in_use) {
 				val = (int) sfp->reserve.bufflen;
 				sg_remove_scat(sfp, &sfp->reserve);
 				sg_build_reserve(sfp, val);
@@ -944,7 +983,7 @@ sg_ioctl(struct file *filp, unsigned int
 		if (!access_ok(VERIFY_WRITE, ip, sizeof (int)))
 			return -EFAULT;
 		read_lock_irqsave(&sfp->rq_list_lock, iflags);
-		for (srp = sfp->headrp; srp; srp = srp->nextrp) {
+		list_for_each_entry(srp, &sfp->rq_list, entry) {
 			if ((1 == srp->done) && (!srp->sg_io_owned)) {
 				read_unlock_irqrestore(&sfp->rq_list_lock,
 						       iflags);
@@ -957,7 +996,8 @@ sg_ioctl(struct file *filp, unsigned int
 		return 0;
 	case SG_GET_NUM_WAITING:
 		read_lock_irqsave(&sfp->rq_list_lock, iflags);
-		for (val = 0, srp = sfp->headrp; srp; srp = srp->nextrp) {
+		val = 0;
+		list_for_each_entry(srp, &sfp->rq_list, entry) {
 			if ((1 == srp->done) && (!srp->sg_io_owned))
 				++val;
 		}
@@ -973,12 +1013,18 @@ sg_ioctl(struct file *filp, unsigned int
                         return -EINVAL;
 		val = min_t(int, val,
 			    max_sectors_bytes(sdp->device->request_queue));
+		mutex_lock(&sfp->f_mutex);
 		if (val != sfp->reserve.bufflen) {
-			if (sg_res_in_use(sfp) || sfp->mmap_called)
+			if (sfp->mmap_called ||
+			    sfp->res_in_use) {
+				mutex_unlock(&sfp->f_mutex);
 				return -EBUSY;
+			}
+
 			sg_remove_scat(sfp, &sfp->reserve);
 			sg_build_reserve(sfp, val);
 		}
+		mutex_unlock(&sfp->f_mutex);
 		return 0;
 	case SG_GET_RESERVED_SIZE:
 		val = min_t(int, sfp->reserve.bufflen,
@@ -1004,6 +1050,8 @@ sg_ioctl(struct file *filp, unsigned int
 		result = get_user(val, ip);
 		if (result)
 			return result;
+		if (val > SG_MAX_CDB_SIZE)
+			return -ENOMEM;
 		sfp->next_cmd_len = (val > 0) ? val : 0;
 		return 0;
 	case SG_GET_VERSION_NUM:
@@ -1017,42 +1065,15 @@ sg_ioctl(struct file *filp, unsigned int
 			return -EFAULT;
 		else {
 			sg_req_info_t *rinfo;
-			unsigned int ms;
 
-			rinfo = kmalloc(SZ_SG_REQ_INFO * SG_MAX_QUEUE,
-								GFP_KERNEL);
+			rinfo = kzalloc(SZ_SG_REQ_INFO * SG_MAX_QUEUE,
+					GFP_KERNEL);
 			if (!rinfo)
 				return -ENOMEM;
 			read_lock_irqsave(&sfp->rq_list_lock, iflags);
-			for (srp = sfp->headrp, val = 0; val < SG_MAX_QUEUE;
-			     ++val, srp = srp ? srp->nextrp : srp) {
-				memset(&rinfo[val], 0, SZ_SG_REQ_INFO);
-				if (srp) {
-					rinfo[val].req_state = srp->done + 1;
-					rinfo[val].problem =
-					    srp->header.masked_status & 
-					    srp->header.host_status & 
-					    srp->header.driver_status;
-					if (srp->done)
-						rinfo[val].duration =
-							srp->header.duration;
-					else {
-						ms = jiffies_to_msecs(jiffies);
-						rinfo[val].duration =
-						    (ms > srp->header.duration) ?
-						    (ms - srp->header.duration) : 0;
-					}
-					rinfo[val].orphan = srp->orphan;
-					rinfo[val].sg_io_owned =
-							srp->sg_io_owned;
-					rinfo[val].pack_id =
-							srp->header.pack_id;
-					rinfo[val].usr_ptr =
-							srp->header.usr_ptr;
-				}
-			}
+			sg_fill_request_table(sfp, rinfo);
 			read_unlock_irqrestore(&sfp->rq_list_lock, iflags);
-			result = __copy_to_user(p, rinfo, 
+			result = __copy_to_user(p, rinfo,
 						SZ_SG_REQ_INFO * SG_MAX_QUEUE);
 			result = result ? -EFAULT : 0;
 			kfree(rinfo);
@@ -1158,7 +1179,7 @@ sg_poll(struct file *filp, poll_table *
 		return POLLERR;
 	poll_wait(filp, &sfp->read_wait, wait);
 	read_lock_irqsave(&sfp->rq_list_lock, iflags);
-	for (srp = sfp->headrp; srp; srp = srp->nextrp) {
+	list_for_each_entry(srp, &sfp->rq_list, entry) {
 		/* if any read waiting, flag it */
 		if ((0 == res) && (1 == srp->done) && (!srp->sg_io_owned))
 			res = POLLIN | POLLRDNORM;
@@ -1239,6 +1260,7 @@ sg_mmap(struct file *filp, struct vm_are
 	unsigned long req_sz, len, sa;
 	Sg_scatter_hold *rsv_schp;
 	int k, length;
+	int ret = 0;
 
 	if ((!filp) || (!vma) || (!(sfp = (Sg_fd *) filp->private_data)))
 		return -ENXIO;
@@ -1249,8 +1271,11 @@ sg_mmap(struct file *filp, struct vm_are
 	if (vma->vm_pgoff)
 		return -EINVAL;	/* want no offset */
 	rsv_schp = &sfp->reserve;
-	if (req_sz > rsv_schp->bufflen)
-		return -ENOMEM;	/* cannot map more than reserved buffer */
+	mutex_lock(&sfp->f_mutex);
+	if (req_sz > rsv_schp->bufflen) {
+		ret = -ENOMEM;	/* cannot map more than reserved buffer */
+		goto out;
+	}
 
 	sa = vma->vm_start;
 	length = 1 << (PAGE_SHIFT + rsv_schp->page_order);
@@ -1261,10 +1286,12 @@ sg_mmap(struct file *filp, struct vm_are
 	}
 
 	sfp->mmap_called = 1;
-	vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP;
+	vma->vm_flags |= VM_IO | VM_DONTEXPAND | VM_DONTDUMP;
 	vma->vm_private_data = sfp;
 	vma->vm_ops = &sg_mmap_vm_ops;
-	return 0;
+out:
+	mutex_unlock(&sfp->f_mutex);
+	return ret;
 }
 
 static void
@@ -1731,13 +1758,25 @@ sg_start_req(Sg_request *srp, unsigned c
 		md = &map_data;
 
 	if (md) {
-		if (!sg_res_in_use(sfp) && dxfer_len <= rsv_schp->bufflen)
+		mutex_lock(&sfp->f_mutex);
+		if (dxfer_len <= rsv_schp->bufflen &&
+		    !sfp->res_in_use) {
+			sfp->res_in_use = 1;
 			sg_link_reserve(sfp, srp, dxfer_len);
-		else {
+		} else if (hp->flags & SG_FLAG_MMAP_IO) {
+			res = -EBUSY; /* sfp->res_in_use == 1 */
+			if (dxfer_len > rsv_schp->bufflen)
+				res = -ENOMEM;
+			mutex_unlock(&sfp->f_mutex);
+			return res;
+		} else {
 			res = sg_build_indirect(req_schp, sfp, dxfer_len);
-			if (res)
+			if (res) {
+				mutex_unlock(&sfp->f_mutex);
 				return res;
+			}
 		}
+		mutex_unlock(&sfp->f_mutex);
 
 		md->pages = req_schp->pages;
 		md->page_order = req_schp->page_order;
@@ -1759,6 +1798,10 @@ sg_start_req(Sg_request *srp, unsigned c
 			return res;
 
 		iov_iter_truncate(&i, hp->dxfer_len);
+		if (!iov_iter_count(&i)) {
+			kfree(iov);
+			return -EINVAL;
+		}
 
 		res = blk_rq_map_user_iov(q, rq, md, &i, GFP_ATOMIC);
 		kfree(iov);
@@ -2022,8 +2065,9 @@ sg_unlink_reserve(Sg_fd * sfp, Sg_reques
 	req_schp->pages = NULL;
 	req_schp->page_order = 0;
 	req_schp->sglist_len = 0;
-	sfp->save_scat_len = 0;
 	srp->res_used = 0;
+	/* Called without mutex lock to avoid deadlock */
+	sfp->res_in_use = 0;
 }
 
 static Sg_request *
@@ -2033,7 +2077,7 @@ sg_get_rq_mark(Sg_fd * sfp, int pack_id)
 	unsigned long iflags;
 
 	write_lock_irqsave(&sfp->rq_list_lock, iflags);
-	for (resp = sfp->headrp; resp; resp = resp->nextrp) {
+	list_for_each_entry(resp, &sfp->rq_list, entry) {
 		/* look for requests that are ready + not SG_IO owned */
 		if ((1 == resp->done) && (!resp->sg_io_owned) &&
 		    ((-1 == pack_id) || (resp->header.pack_id == pack_id))) {
@@ -2051,70 +2095,45 @@ sg_add_request(Sg_fd * sfp)
 {
 	int k;
 	unsigned long iflags;
-	Sg_request *resp;
 	Sg_request *rp = sfp->req_arr;
 
 	write_lock_irqsave(&sfp->rq_list_lock, iflags);
-	resp = sfp->headrp;
-	if (!resp) {
-		memset(rp, 0, sizeof (Sg_request));
-		rp->parentfp = sfp;
-		resp = rp;
-		sfp->headrp = resp;
-	} else {
-		if (0 == sfp->cmd_q)
-			resp = NULL;	/* command queuing disallowed */
-		else {
-			for (k = 0; k < SG_MAX_QUEUE; ++k, ++rp) {
-				if (!rp->parentfp)
-					break;
-			}
-			if (k < SG_MAX_QUEUE) {
-				memset(rp, 0, sizeof (Sg_request));
-				rp->parentfp = sfp;
-				while (resp->nextrp)
-					resp = resp->nextrp;
-				resp->nextrp = rp;
-				resp = rp;
-			} else
-				resp = NULL;
+	if (!list_empty(&sfp->rq_list)) {
+		if (!sfp->cmd_q)
+			goto out_unlock;
+
+		for (k = 0; k < SG_MAX_QUEUE; ++k, ++rp) {
+			if (!rp->parentfp)
+				break;
 		}
+		if (k >= SG_MAX_QUEUE)
+			goto out_unlock;
 	}
-	if (resp) {
-		resp->nextrp = NULL;
-		resp->header.duration = jiffies_to_msecs(jiffies);
-	}
+	memset(rp, 0, sizeof (Sg_request));
+	rp->parentfp = sfp;
+	rp->header.duration = jiffies_to_msecs(jiffies);
+	list_add_tail(&rp->entry, &sfp->rq_list);
 	write_unlock_irqrestore(&sfp->rq_list_lock, iflags);
-	return resp;
+	return rp;
+out_unlock:
+	write_unlock_irqrestore(&sfp->rq_list_lock, iflags);
+	return NULL;
 }
 
 /* Return of 1 for found; 0 for not found */
 static int
 sg_remove_request(Sg_fd * sfp, Sg_request * srp)
 {
-	Sg_request *prev_rp;
-	Sg_request *rp;
 	unsigned long iflags;
 	int res = 0;
 
-	if ((!sfp) || (!srp) || (!sfp->headrp))
+	if (!sfp || !srp || list_empty(&sfp->rq_list))
 		return res;
 	write_lock_irqsave(&sfp->rq_list_lock, iflags);
-	prev_rp = sfp->headrp;
-	if (srp == prev_rp) {
-		sfp->headrp = prev_rp->nextrp;
-		prev_rp->parentfp = NULL;
+	if (!list_empty(&srp->entry)) {
+		list_del(&srp->entry);
+		srp->parentfp = NULL;
 		res = 1;
-	} else {
-		while ((rp = prev_rp->nextrp)) {
-			if (srp == rp) {
-				prev_rp->nextrp = rp->nextrp;
-				rp->parentfp = NULL;
-				res = 1;
-				break;
-			}
-			prev_rp = rp;
-		}
 	}
 	write_unlock_irqrestore(&sfp->rq_list_lock, iflags);
 	return res;
@@ -2133,8 +2152,9 @@ sg_add_sfp(Sg_device * sdp)
 
 	init_waitqueue_head(&sfp->read_wait);
 	rwlock_init(&sfp->rq_list_lock);
-
+	INIT_LIST_HEAD(&sfp->rq_list);
 	kref_init(&sfp->f_ref);
+	mutex_init(&sfp->f_mutex);
 	sfp->timeout = SG_DEFAULT_TIMEOUT;
 	sfp->timeout_user = SG_DEFAULT_TIMEOUT_USER;
 	sfp->force_packid = SG_DEF_FORCE_PACK_ID;
@@ -2173,10 +2193,13 @@ sg_remove_sfp_usercontext(struct work_st
 {
 	struct sg_fd *sfp = container_of(work, struct sg_fd, ew.work);
 	struct sg_device *sdp = sfp->parentdp;
+	Sg_request *srp;
 
 	/* Cleanup any responses which were never read(). */
-	while (sfp->headrp)
-		sg_finish_rem_req(sfp->headrp);
+	while (!list_empty(&sfp->rq_list)) {
+		srp = list_first_entry(&sfp->rq_list, Sg_request, entry);
+		sg_finish_rem_req(srp);
+	}
 
 	if (sfp->reserve.bufflen > 0) {
 		SCSI_LOG_TIMEOUT(6, sg_printk(KERN_INFO, sdp,
@@ -2210,20 +2233,6 @@ sg_remove_sfp(struct kref *kref)
 	schedule_work(&sfp->ew.work);
 }
 
-static int
-sg_res_in_use(Sg_fd * sfp)
-{
-	const Sg_request *srp;
-	unsigned long iflags;
-
-	read_lock_irqsave(&sfp->rq_list_lock, iflags);
-	for (srp = sfp->headrp; srp; srp = srp->nextrp)
-		if (srp->res_used)
-			break;
-	read_unlock_irqrestore(&sfp->rq_list_lock, iflags);
-	return srp ? 1 : 0;
-}
-
 #ifdef CONFIG_SCSI_PROC_FS
 static int
 sg_idr_max_id(int id, void *p, void *data)
@@ -2593,7 +2602,7 @@ static int sg_proc_seq_show_devstrs(stru
 /* must be called while holding sg_index_lock */
 static void sg_proc_debug_helper(struct seq_file *s, Sg_device * sdp)
 {
-	int k, m, new_interface, blen, usg;
+	int k, new_interface, blen, usg;
 	Sg_request *srp;
 	Sg_fd *fp;
 	const sg_io_hdr_t *hp;
@@ -2613,13 +2622,11 @@ static void sg_proc_debug_helper(struct
 		seq_printf(s, "   cmd_q=%d f_packid=%d k_orphan=%d closed=0\n",
 			   (int) fp->cmd_q, (int) fp->force_packid,
 			   (int) fp->keep_orphan);
-		for (m = 0, srp = fp->headrp;
-				srp != NULL;
-				++m, srp = srp->nextrp) {
+		list_for_each_entry(srp, &fp->rq_list, entry) {
 			hp = &srp->header;
 			new_interface = (hp->interface_id == '\0') ? 0 : 1;
 			if (srp->res_used) {
-				if (new_interface && 
+				if (new_interface &&
 				    (SG_FLAG_MMAP_IO & hp->flags))
 					cp = "     mmap>> ";
 				else
@@ -2650,7 +2657,7 @@ static void sg_proc_debug_helper(struct
 			seq_printf(s, "ms sgat=%d op=0x%02x\n", usg,
 				   (int) srp->data.cmd_opcode);
 		}
-		if (0 == m)
+		if (list_empty(&fp->rq_list))
 			seq_puts(s, "     No requests active\n");
 		read_unlock(&fp->rq_list_lock);
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/snic/snic_main.c linux-libre-4.4.107-gnu/drivers/scsi/snic/snic_main.c
--- linux-libre-4.4-gnu/drivers/scsi/snic/snic_main.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/snic/snic_main.c	2017-12-20 04:05:01.000000000 -0500
@@ -584,6 +584,7 @@ snic_probe(struct pci_dev *pdev, const s
 	if (!pool) {
 		SNIC_HOST_ERR(shost, "dflt sgl pool creation failed\n");
 
+		ret = -ENOMEM;
 		goto err_free_res;
 	}
 
@@ -594,6 +595,7 @@ snic_probe(struct pci_dev *pdev, const s
 	if (!pool) {
 		SNIC_HOST_ERR(shost, "max sgl pool creation failed\n");
 
+		ret = -ENOMEM;
 		goto err_free_dflt_sgl_pool;
 	}
 
@@ -604,6 +606,7 @@ snic_probe(struct pci_dev *pdev, const s
 	if (!pool) {
 		SNIC_HOST_ERR(shost, "snic tmreq info pool creation failed.\n");
 
+		ret = -ENOMEM;
 		goto err_free_max_sgl_pool;
 	}
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/sr.c linux-libre-4.4.107-gnu/drivers/scsi/sr.c
--- linux-libre-4.4-gnu/drivers/scsi/sr.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/sr.c	2017-12-20 04:05:01.000000000 -0500
@@ -144,6 +144,9 @@ static int sr_runtime_suspend(struct dev
 {
 	struct scsi_cd *cd = dev_get_drvdata(dev);
 
+	if (!cd)	/* E.g.: runtime suspend following sr_remove() */
+		return 0;
+
 	if (cd->media_present)
 		return -EBUSY;
 	else
@@ -831,6 +834,7 @@ static void get_capabilities(struct scsi
 	unsigned char *buffer;
 	struct scsi_mode_data data;
 	struct scsi_sense_hdr sshdr;
+	unsigned int ms_len = 128;
 	int rc, n;
 
 	static const char *loadmech[] =
@@ -857,10 +861,11 @@ static void get_capabilities(struct scsi
 	scsi_test_unit_ready(cd->device, SR_TIMEOUT, MAX_RETRIES, &sshdr);
 
 	/* ask for mode page 0x2a */
-	rc = scsi_mode_sense(cd->device, 0, 0x2a, buffer, 128,
+	rc = scsi_mode_sense(cd->device, 0, 0x2a, buffer, ms_len,
 			     SR_TIMEOUT, 3, &data, NULL);
 
-	if (!scsi_status_is_good(rc)) {
+	if (!scsi_status_is_good(rc) || data.length > ms_len ||
+	    data.header_length + data.block_descriptor_length > data.length) {
 		/* failed, drive doesn't have capabilities mode page */
 		cd->cdi.speed = 1;
 		cd->cdi.mask |= (CDC_CD_R | CDC_CD_RW | CDC_DVD_R |
@@ -985,6 +990,7 @@ static int sr_remove(struct device *dev)
 	scsi_autopm_get_device(cd->device);
 
 	del_gendisk(cd->disk);
+	dev_set_drvdata(dev, NULL);
 
 	mutex_lock(&sr_ref_mutex);
 	kref_put(&cd->kref, sr_kref_release);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/storvsc_drv.c linux-libre-4.4.107-gnu/drivers/scsi/storvsc_drv.c
--- linux-libre-4.4-gnu/drivers/scsi/storvsc_drv.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/storvsc_drv.c	2017-12-20 04:05:01.000000000 -0500
@@ -135,6 +135,8 @@ struct hv_fc_wwn_packet {
 #define SRB_FLAGS_PORT_DRIVER_RESERVED		0x0F000000
 #define SRB_FLAGS_CLASS_DRIVER_RESERVED		0xF0000000
 
+#define SP_UNTAGGED			((unsigned char) ~0)
+#define SRB_SIMPLE_TAG_REQUEST		0x20
 
 /*
  * Platform neutral description of a scsi request -
@@ -354,6 +356,7 @@ enum storvsc_request_type {
 #define SRB_STATUS_SUCCESS	0x01
 #define SRB_STATUS_ABORTED	0x02
 #define SRB_STATUS_ERROR	0x04
+#define SRB_STATUS_DATA_OVERRUN	0x12
 
 #define SRB_STATUS(status) \
 	(status & ~(SRB_STATUS_AUTOSENSE_VALID | SRB_STATUS_QUEUE_FROZEN))
@@ -376,8 +379,6 @@ MODULE_PARM_DESC(vcpus_per_sub_channel,
  */
 static int storvsc_timeout = 180;
 
-static int msft_blist_flags = BLIST_TRY_VPD_PAGES;
-
 
 static void storvsc_on_channel_callback(void *context);
 
@@ -864,6 +865,13 @@ static void storvsc_handle_error(struct
 	switch (SRB_STATUS(vm_srb->srb_status)) {
 	case SRB_STATUS_ERROR:
 		/*
+		 * Let upper layer deal with error when
+		 * sense message is present.
+		 */
+
+		if (vm_srb->srb_status & SRB_STATUS_AUTOSENSE_VALID)
+			break;
+		/*
 		 * If there is an error; offline the device since all
 		 * error recovery strategies would have already been
 		 * deployed on the host side. However, if the command
@@ -889,8 +897,9 @@ static void storvsc_handle_error(struct
 		do_work = true;
 		process_err_fn = storvsc_remove_lun;
 		break;
-	case (SRB_STATUS_ABORTED | SRB_STATUS_AUTOSENSE_VALID):
-		if ((asc == 0x2a) && (ascq == 0x9)) {
+	case SRB_STATUS_ABORTED:
+		if (vm_srb->srb_status & SRB_STATUS_AUTOSENSE_VALID &&
+		    (asc == 0x2a) && (ascq == 0x9)) {
 			do_work = true;
 			process_err_fn = storvsc_device_scan;
 			/*
@@ -926,6 +935,7 @@ static void storvsc_command_completion(s
 	struct hv_host_device *host_dev = shost_priv(scmnd->device->host);
 	struct scsi_sense_hdr sense_hdr;
 	struct vmscsi_request *vm_srb;
+	u32 data_transfer_length;
 	struct Scsi_Host *host;
 	struct storvsc_device *stor_dev;
 	struct hv_device *dev = host_dev->dev;
@@ -936,6 +946,7 @@ static void storvsc_command_completion(s
 	host = stor_dev->host;
 
 	vm_srb = &cmd_request->vstor_packet.vm_srb;
+	data_transfer_length = vm_srb->data_transfer_length;
 
 	scmnd->result = vm_srb->scsi_status;
 
@@ -946,13 +957,20 @@ static void storvsc_command_completion(s
 					     &sense_hdr);
 	}
 
-	if (vm_srb->srb_status != SRB_STATUS_SUCCESS)
+	if (vm_srb->srb_status != SRB_STATUS_SUCCESS) {
 		storvsc_handle_error(vm_srb, scmnd, host, sense_hdr.asc,
 					 sense_hdr.ascq);
+		/*
+		 * The Windows driver set data_transfer_length on
+		 * SRB_STATUS_DATA_OVERRUN. On other errors, this value
+		 * is untouched.  In these cases we set it to 0.
+		 */
+		if (vm_srb->srb_status != SRB_STATUS_DATA_OVERRUN)
+			data_transfer_length = 0;
+	}
 
 	scsi_set_resid(scmnd,
-		cmd_request->payload->range.len -
-		vm_srb->data_transfer_length);
+		cmd_request->payload->range.len - data_transfer_length);
 
 	scmnd->scsi_done(scmnd);
 
@@ -1221,6 +1239,22 @@ static int storvsc_do_io(struct hv_devic
 	return ret;
 }
 
+static int storvsc_device_alloc(struct scsi_device *sdevice)
+{
+	/*
+	 * Set blist flag to permit the reading of the VPD pages even when
+	 * the target may claim SPC-2 compliance. MSFT targets currently
+	 * claim SPC-2 compliance while they implement post SPC-2 features.
+	 * With this flag we can correctly handle WRITE_SAME_16 issues.
+	 *
+	 * Hypervisor reports SCSI_UNKNOWN type for DVD ROM device but
+	 * still supports REPORT LUN.
+	 */
+	sdevice->sdev_bflags = BLIST_REPORTLUN2 | BLIST_TRY_VPD_PAGES;
+
+	return 0;
+}
+
 static int storvsc_device_configure(struct scsi_device *sdevice)
 {
 
@@ -1236,14 +1270,6 @@ static int storvsc_device_configure(stru
 	sdevice->no_write_same = 1;
 
 	/*
-	 * Add blist flags to permit the reading of the VPD pages even when
-	 * the target may claim SPC-2 compliance. MSFT targets currently
-	 * claim SPC-2 compliance while they implement post SPC-2 features.
-	 * With this patch we can correctly handle WRITE_SAME_16 issues.
-	 */
-	sdevice->sdev_bflags |= msft_blist_flags;
-
-	/*
 	 * If the host is WIN8 or WIN8 R2, claim conformance to SPC-3
 	 * if the device is a MSFT virtual device.  If the host is
 	 * WIN10 or newer, allow write_same.
@@ -1408,6 +1434,13 @@ static int storvsc_queuecommand(struct S
 	vm_srb->win8_extension.srb_flags |=
 		SRB_FLAGS_DISABLE_SYNCH_TRANSFER;
 
+	if (scmnd->device->tagged_supported) {
+		vm_srb->win8_extension.srb_flags |=
+		(SRB_FLAGS_QUEUE_ACTION_ENABLE | SRB_FLAGS_NO_QUEUE_FREEZE);
+		vm_srb->win8_extension.queue_tag = SP_UNTAGGED;
+		vm_srb->win8_extension.queue_action = SRB_SIMPLE_TAG_REQUEST;
+	}
+
 	/* Build the SRB */
 	switch (scmnd->sc_data_direction) {
 	case DMA_TO_DEVICE:
@@ -1484,6 +1517,8 @@ static int storvsc_queuecommand(struct S
 	ret = storvsc_do_io(dev, cmd_request);
 
 	if (ret == -EAGAIN) {
+		if (payload_sz > sizeof(cmd_request->mpb))
+			kfree(payload);
 		/* no more space */
 		return SCSI_MLQUEUE_DEVICE_BUSY;
 	}
@@ -1500,6 +1535,7 @@ static struct scsi_host_template scsi_dr
 	.eh_host_reset_handler =	storvsc_host_reset_handler,
 	.proc_name =		"storvsc_host",
 	.eh_timed_out =		storvsc_eh_timed_out,
+	.slave_alloc =		storvsc_device_alloc,
 	.slave_configure =	storvsc_device_configure,
 	.cmd_per_lun =		255,
 	.this_id =		-1,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/ufs/ufshcd.c linux-libre-4.4.107-gnu/drivers/scsi/ufs/ufshcd.c
--- linux-libre-4.4-gnu/drivers/scsi/ufs/ufshcd.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/ufs/ufshcd.c	2017-12-20 04:05:01.000000000 -0500
@@ -3340,18 +3340,25 @@ out:
 }
 
 /**
- * ufshcd_force_reset_auto_bkops - force enable of auto bkops
+ * ufshcd_force_reset_auto_bkops - force reset auto bkops state
  * @hba: per adapter instance
  *
  * After a device reset the device may toggle the BKOPS_EN flag
  * to default value. The s/w tracking variables should be updated
- * as well. Do this by forcing enable of auto bkops.
+ * as well. This function would change the auto-bkops state based on
+ * UFSHCD_CAP_KEEP_AUTO_BKOPS_ENABLED_EXCEPT_SUSPEND.
  */
-static void  ufshcd_force_reset_auto_bkops(struct ufs_hba *hba)
+static void ufshcd_force_reset_auto_bkops(struct ufs_hba *hba)
 {
-	hba->auto_bkops_enabled = false;
-	hba->ee_ctrl_mask |= MASK_EE_URGENT_BKOPS;
-	ufshcd_enable_auto_bkops(hba);
+	if (ufshcd_keep_autobkops_enabled_except_suspend(hba)) {
+		hba->auto_bkops_enabled = false;
+		hba->ee_ctrl_mask |= MASK_EE_URGENT_BKOPS;
+		ufshcd_enable_auto_bkops(hba);
+	} else {
+		hba->auto_bkops_enabled = true;
+		hba->ee_ctrl_mask &= ~MASK_EE_URGENT_BKOPS;
+		ufshcd_disable_auto_bkops(hba);
+	}
 }
 
 static inline int ufshcd_get_bkops_status(struct ufs_hba *hba, u32 *status)
@@ -5149,11 +5156,15 @@ static int ufshcd_resume(struct ufs_hba
 			goto set_old_link_state;
 	}
 
-	/*
-	 * If BKOPs operations are urgently needed at this moment then
-	 * keep auto-bkops enabled or else disable it.
-	 */
-	ufshcd_urgent_bkops(hba);
+	if (ufshcd_keep_autobkops_enabled_except_suspend(hba))
+		ufshcd_enable_auto_bkops(hba);
+	else
+		/*
+		 * If BKOPs operations are urgently needed at this moment then
+		 * keep auto-bkops enabled or else disable it.
+		 */
+		ufshcd_urgent_bkops(hba);
+
 	hba->clk_gating.is_suspended = false;
 
 	if (ufshcd_is_clkscaling_enabled(hba))
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/ufs/ufshcd.h linux-libre-4.4.107-gnu/drivers/scsi/ufs/ufshcd.h
--- linux-libre-4.4-gnu/drivers/scsi/ufs/ufshcd.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/ufs/ufshcd.h	2017-12-20 04:05:01.000000000 -0500
@@ -528,6 +528,14 @@ struct ufs_hba {
 	 * CAUTION: Enabling this might reduce overall UFS throughput.
 	 */
 #define UFSHCD_CAP_INTR_AGGR (1 << 4)
+	/*
+	 * This capability allows the device auto-bkops to be always enabled
+	 * except during suspend (both runtime and suspend).
+	 * Enabling this capability means that device will always be allowed
+	 * to do background operation when it's active but it might degrade
+	 * the performance of ongoing read/write operations.
+	 */
+#define UFSHCD_CAP_KEEP_AUTO_BKOPS_ENABLED_EXCEPT_SUSPEND (1 << 5)
 
 	struct devfreq *devfreq;
 	struct ufs_clk_scaling clk_scaling;
@@ -623,6 +631,11 @@ static inline void *ufshcd_get_variant(s
 	BUG_ON(!hba);
 	return hba->priv;
 }
+static inline bool ufshcd_keep_autobkops_enabled_except_suspend(
+							struct ufs_hba *hba)
+{
+	return hba->caps & UFSHCD_CAP_KEEP_AUTO_BKOPS_ENABLED_EXCEPT_SUSPEND;
+}
 
 extern int ufshcd_runtime_suspend(struct ufs_hba *hba);
 extern int ufshcd_runtime_resume(struct ufs_hba *hba);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/ufs/ufs-qcom.c linux-libre-4.4.107-gnu/drivers/scsi/ufs/ufs-qcom.c
--- linux-libre-4.4-gnu/drivers/scsi/ufs/ufs-qcom.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/ufs/ufs-qcom.c	2017-12-20 04:05:01.000000000 -0500
@@ -1552,6 +1552,7 @@ static const struct of_device_id ufs_qco
 	{ .compatible = "qcom,ufshc"},
 	{},
 };
+MODULE_DEVICE_TABLE(of, ufs_qcom_of_match);
 
 static const struct dev_pm_ops ufs_qcom_pm_ops = {
 	.suspend	= ufshcd_pltfrm_suspend,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/scsi/virtio_scsi.c linux-libre-4.4.107-gnu/drivers/scsi/virtio_scsi.c
--- linux-libre-4.4-gnu/drivers/scsi/virtio_scsi.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/scsi/virtio_scsi.c	2017-12-20 04:05:01.000000000 -0500
@@ -533,7 +533,9 @@ static int virtscsi_queuecommand(struct
 {
 	struct Scsi_Host *shost = virtio_scsi_host(vscsi->vdev);
 	struct virtio_scsi_cmd *cmd = scsi_cmd_priv(sc);
+	unsigned long flags;
 	int req_size;
+	int ret;
 
 	BUG_ON(scsi_sg_count(sc) > shost->sg_tablesize);
 
@@ -561,8 +563,15 @@ static int virtscsi_queuecommand(struct
 		req_size = sizeof(cmd->req.cmd);
 	}
 
-	if (virtscsi_kick_cmd(req_vq, cmd, req_size, sizeof(cmd->resp.cmd)) != 0)
+	ret = virtscsi_kick_cmd(req_vq, cmd, req_size, sizeof(cmd->resp.cmd));
+	if (ret == -EIO) {
+		cmd->resp.cmd.response = VIRTIO_SCSI_S_BAD_TARGET;
+		spin_lock_irqsave(&req_vq->vq_lock, flags);
+		virtscsi_complete_cmd(vscsi, cmd);
+		spin_unlock_irqrestore(&req_vq->vq_lock, flags);
+	} else if (ret != 0) {
 		return SCSI_MLQUEUE_HOST_BUSY;
+	}
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/sh/pm_runtime.c linux-libre-4.4.107-gnu/drivers/sh/pm_runtime.c
--- linux-libre-4.4-gnu/drivers/sh/pm_runtime.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/sh/pm_runtime.c	2017-12-20 04:05:01.000000000 -0500
@@ -34,7 +34,7 @@ static struct pm_clk_notifier_block plat
 
 static int __init sh_pm_runtime_init(void)
 {
-	if (IS_ENABLED(CONFIG_ARCH_SHMOBILE)) {
+	if (IS_ENABLED(CONFIG_OF) && IS_ENABLED(CONFIG_ARCH_SHMOBILE)) {
 		if (!of_find_compatible_node(NULL, NULL,
 					     "renesas,cpg-mstp-clocks"))
 			return 0;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/soc/qcom/spm.c linux-libre-4.4.107-gnu/drivers/soc/qcom/spm.c
--- linux-libre-4.4-gnu/drivers/soc/qcom/spm.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/soc/qcom/spm.c	2017-12-20 04:05:01.000000000 -0500
@@ -288,7 +288,7 @@ static struct spm_driver_data *spm_get_d
 	struct spm_driver_data *drv = NULL;
 	struct device_node *cpu_node, *saw_node;
 	int cpu;
-	bool found;
+	bool found = 0;
 
 	for_each_possible_cpu(cpu) {
 		cpu_node = of_cpu_device_node_get(cpu);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/soc/rockchip/pm_domains.c linux-libre-4.4.107-gnu/drivers/soc/rockchip/pm_domains.c
--- linux-libre-4.4-gnu/drivers/soc/rockchip/pm_domains.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/soc/rockchip/pm_domains.c	2017-12-20 04:05:01.000000000 -0500
@@ -419,6 +419,7 @@ static int rockchip_pm_domain_probe(stru
 		if (error) {
 			dev_err(dev, "failed to handle node %s: %d\n",
 				node->name, error);
+			of_node_put(node);
 			goto err_out;
 		}
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/spi/spi-atmel.c linux-libre-4.4.107-gnu/drivers/spi/spi-atmel.c
--- linux-libre-4.4-gnu/drivers/spi/spi-atmel.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/spi/spi-atmel.c	2017-12-20 04:05:01.000000000 -0500
@@ -1571,6 +1571,7 @@ static int atmel_spi_probe(struct platfo
 
 	as->use_cs_gpios = true;
 	if (atmel_spi_is_v2(as) &&
+	    pdev->dev.of_node &&
 	    !of_get_property(pdev->dev.of_node, "cs-gpios", NULL)) {
 		as->use_cs_gpios = false;
 		master->num_chipselect = 4;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/spi/spi-davinci.c linux-libre-4.4.107-gnu/drivers/spi/spi-davinci.c
--- linux-libre-4.4-gnu/drivers/spi/spi-davinci.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/spi/spi-davinci.c	2017-12-20 04:05:01.000000000 -0500
@@ -651,7 +651,7 @@ static int davinci_spi_bufs(struct spi_d
 			buf = t->rx_buf;
 		t->rx_dma = dma_map_single(&spi->dev, buf,
 				t->len, DMA_FROM_DEVICE);
-		if (!t->rx_dma) {
+		if (dma_mapping_error(&spi->dev, !t->rx_dma)) {
 			ret = -EFAULT;
 			goto err_rx_map;
 		}
@@ -665,7 +665,7 @@ static int davinci_spi_bufs(struct spi_d
 			buf = (void *)t->tx_buf;
 		t->tx_dma = dma_map_single(&spi->dev, buf,
 				t->len, DMA_TO_DEVICE);
-		if (!t->tx_dma) {
+		if (dma_mapping_error(&spi->dev, t->tx_dma)) {
 			ret = -EFAULT;
 			goto err_tx_map;
 		}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/spi/spi-dw.c linux-libre-4.4.107-gnu/drivers/spi/spi-dw.c
--- linux-libre-4.4-gnu/drivers/spi/spi-dw.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/spi/spi-dw.c	2017-12-20 04:05:01.000000000 -0500
@@ -107,7 +107,10 @@ static const struct file_operations dw_s
 
 static int dw_spi_debugfs_init(struct dw_spi *dws)
 {
-	dws->debugfs = debugfs_create_dir("dw_spi", NULL);
+	char name[128];
+
+	snprintf(name, 128, "dw_spi-%s", dev_name(&dws->master->dev));
+	dws->debugfs = debugfs_create_dir(name, NULL);
 	if (!dws->debugfs)
 		return -ENOMEM;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/spi/spi-fsl-dspi.c linux-libre-4.4.107-gnu/drivers/spi/spi-fsl-dspi.c
--- linux-libre-4.4-gnu/drivers/spi/spi-fsl-dspi.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/spi/spi-fsl-dspi.c	2017-12-20 04:05:01.000000000 -0500
@@ -753,7 +753,6 @@ static int dspi_remove(struct platform_d
 	/* Disconnect from the SPI framework */
 	clk_disable_unprepare(dspi->clk);
 	spi_unregister_master(dspi->master);
-	spi_master_put(dspi->master);
 
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/spi/spi-omap2-mcspi.c linux-libre-4.4.107-gnu/drivers/spi/spi-omap2-mcspi.c
--- linux-libre-4.4-gnu/drivers/spi/spi-omap2-mcspi.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/spi/spi-omap2-mcspi.c	2017-12-20 04:05:01.000000000 -0500
@@ -1024,6 +1024,16 @@ static int omap2_mcspi_setup(struct spi_
 		spi->controller_state = cs;
 		/* Link this to context save list */
 		list_add_tail(&cs->node, &ctx->cs);
+
+		if (gpio_is_valid(spi->cs_gpio)) {
+			ret = gpio_request(spi->cs_gpio, dev_name(&spi->dev));
+			if (ret) {
+				dev_err(&spi->dev, "failed to request gpio\n");
+				return ret;
+			}
+			gpio_direction_output(spi->cs_gpio,
+					 !(spi->mode & SPI_CS_HIGH));
+		}
 	}
 
 	if (!mcspi_dma->dma_rx || !mcspi_dma->dma_tx) {
@@ -1032,15 +1042,6 @@ static int omap2_mcspi_setup(struct spi_
 			return ret;
 	}
 
-	if (gpio_is_valid(spi->cs_gpio)) {
-		ret = gpio_request(spi->cs_gpio, dev_name(&spi->dev));
-		if (ret) {
-			dev_err(&spi->dev, "failed to request gpio\n");
-			return ret;
-		}
-		gpio_direction_output(spi->cs_gpio, !(spi->mode & SPI_CS_HIGH));
-	}
-
 	ret = pm_runtime_get_sync(mcspi->dev);
 	if (ret < 0)
 		return ret;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/spi/spi-orion.c linux-libre-4.4.107-gnu/drivers/spi/spi-orion.c
--- linux-libre-4.4-gnu/drivers/spi/spi-orion.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/spi/spi-orion.c	2017-12-20 04:05:01.000000000 -0500
@@ -127,37 +127,62 @@ static int orion_spi_baudrate_set(struct
 	tclk_hz = clk_get_rate(orion_spi->clk);
 
 	if (devdata->typ == ARMADA_SPI) {
-		unsigned int clk, spr, sppr, sppr2, err;
-		unsigned int best_spr, best_sppr, best_err;
+		/*
+		 * Given the core_clk (tclk_hz) and the target rate (speed) we
+		 * determine the best values for SPR (in [0 .. 15]) and SPPR (in
+		 * [0..7]) such that
+		 *
+		 * 	core_clk / (SPR * 2 ** SPPR)
+		 *
+		 * is as big as possible but not bigger than speed.
+		 */
 
-		best_err = speed;
-		best_spr = 0;
-		best_sppr = 0;
+		/* best integer divider: */
+		unsigned divider = DIV_ROUND_UP(tclk_hz, speed);
+		unsigned spr, sppr;
 
-		/* Iterate over the valid range looking for best fit */
-		for (sppr = 0; sppr < 8; sppr++) {
-			sppr2 = 0x1 << sppr;
+		if (divider < 16) {
+			/* This is the easy case, divider is less than 16 */
+			spr = divider;
+			sppr = 0;
 
-			spr = tclk_hz / sppr2;
-			spr = DIV_ROUND_UP(spr, speed);
-			if ((spr == 0) || (spr > 15))
-				continue;
+		} else {
+			unsigned two_pow_sppr;
+			/*
+			 * Find the highest bit set in divider. This and the
+			 * three next bits define SPR (apart from rounding).
+			 * SPPR is then the number of zero bits that must be
+			 * appended:
+			 */
+			sppr = fls(divider) - 4;
 
-			clk = tclk_hz / (spr * sppr2);
-			err = speed - clk;
+			/*
+			 * As SPR only has 4 bits, we have to round divider up
+			 * to the next multiple of 2 ** sppr.
+			 */
+			two_pow_sppr = 1 << sppr;
+			divider = (divider + two_pow_sppr - 1) & -two_pow_sppr;
 
-			if (err < best_err) {
-				best_spr = spr;
-				best_sppr = sppr;
-				best_err = err;
-			}
-		}
+			/*
+			 * recalculate sppr as rounding up divider might have
+			 * increased it enough to change the position of the
+			 * highest set bit. In this case the bit that now
+			 * doesn't make it into SPR is 0, so there is no need to
+			 * round again.
+			 */
+			sppr = fls(divider) - 4;
+			spr = divider >> sppr;
 
-		if ((best_sppr == 0) && (best_spr == 0))
-			return -EINVAL;
+			/*
+			 * Now do range checking. SPR is constructed to have a
+			 * width of 4 bits, so this is fine for sure. So we
+			 * still need to check for sppr to fit into 3 bits:
+			 */
+			if (sppr > 7)
+				return -EINVAL;
+		}
 
-		prescale = ((best_sppr & 0x6) << 5) |
-			((best_sppr & 0x1) << 4) | best_spr;
+		prescale = ((sppr & 0x6) << 5) | ((sppr & 0x1) << 4) | spr;
 	} else {
 		/*
 		 * the supported rates are: 4,6,8...30
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/spi/spi-pxa2xx.c linux-libre-4.4.107-gnu/drivers/spi/spi-pxa2xx.c
--- linux-libre-4.4-gnu/drivers/spi/spi-pxa2xx.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/spi/spi-pxa2xx.c	2017-12-20 04:05:01.000000000 -0500
@@ -111,7 +111,7 @@ static const struct lpss_config lpss_pla
 		.reg_general = -1,
 		.reg_ssp = 0x20,
 		.reg_cs_ctrl = 0x24,
-		.reg_capabilities = 0xfc,
+		.reg_capabilities = -1,
 		.rx_threshold = 1,
 		.tx_threshold_lo = 32,
 		.tx_threshold_hi = 56,
@@ -548,7 +548,14 @@ static void reset_sccr1(struct driver_da
 	u32 sccr1_reg;
 
 	sccr1_reg = pxa2xx_spi_read(drv_data, SSCR1) & ~drv_data->int_cr1;
-	sccr1_reg &= ~SSCR1_RFT;
+	switch (drv_data->ssp_type) {
+	case QUARK_X1000_SSP:
+		sccr1_reg &= ~QUARK_X1000_SSCR1_RFT;
+		break;
+	default:
+		sccr1_reg &= ~SSCR1_RFT;
+		break;
+	}
 	sccr1_reg |= chip->threshold;
 	pxa2xx_spi_write(drv_data, SSCR1, sccr1_reg);
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/spi/spi-rockchip.c linux-libre-4.4.107-gnu/drivers/spi/spi-rockchip.c
--- linux-libre-4.4-gnu/drivers/spi/spi-rockchip.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/spi/spi-rockchip.c	2017-12-20 04:05:01.000000000 -0500
@@ -265,7 +265,10 @@ static inline u32 rx_max(struct rockchip
 static void rockchip_spi_set_cs(struct spi_device *spi, bool enable)
 {
 	u32 ser;
-	struct rockchip_spi *rs = spi_master_get_devdata(spi->master);
+	struct spi_master *master = spi->master;
+	struct rockchip_spi *rs = spi_master_get_devdata(master);
+
+	pm_runtime_get_sync(rs->dev);
 
 	ser = readl_relaxed(rs->regs + ROCKCHIP_SPI_SER) & SER_MASK;
 
@@ -290,6 +293,8 @@ static void rockchip_spi_set_cs(struct s
 		ser &= ~(1 << spi->chip_select);
 
 	writel_relaxed(ser, rs->regs + ROCKCHIP_SPI_SER);
+
+	pm_runtime_put_sync(rs->dev);
 }
 
 static int rockchip_spi_prepare_message(struct spi_master *master,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/spi/spi-sh-msiof.c linux-libre-4.4.107-gnu/drivers/spi/spi-sh-msiof.c
--- linux-libre-4.4-gnu/drivers/spi/spi-sh-msiof.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/spi/spi-sh-msiof.c	2017-12-20 04:05:01.000000000 -0500
@@ -263,6 +263,9 @@ static void sh_msiof_spi_set_clk_regs(st
 
 	for (k = 0; k < ARRAY_SIZE(sh_msiof_spi_div_table); k++) {
 		brps = DIV_ROUND_UP(div, sh_msiof_spi_div_table[k].div);
+		/* SCR_BRDV_DIV_1 is valid only if BRPS is x 1/1 or x 1/2 */
+		if (sh_msiof_spi_div_table[k].div == 1 && brps > 2)
+			continue;
 		if (brps <= 32) /* max of brdv is 32 */
 			break;
 	}
@@ -860,7 +863,7 @@ static int sh_msiof_transfer_one(struct
 				break;
 			copy32 = copy_bswap32;
 		} else if (bits <= 16) {
-			if (l & 1)
+			if (l & 3)
 				break;
 			copy32 = copy_wswap32;
 		} else {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/spi/spi-sun4i.c linux-libre-4.4.107-gnu/drivers/spi/spi-sun4i.c
--- linux-libre-4.4-gnu/drivers/spi/spi-sun4i.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/spi/spi-sun4i.c	2017-12-20 04:05:01.000000000 -0500
@@ -170,13 +170,17 @@ static int sun4i_spi_transfer_one(struct
 {
 	struct sun4i_spi *sspi = spi_master_get_devdata(master);
 	unsigned int mclk_rate, div, timeout;
+	unsigned int start, end, tx_time;
 	unsigned int tx_len = 0;
 	int ret = 0;
 	u32 reg;
 
 	/* We don't support transfer larger than the FIFO */
 	if (tfr->len > SUN4I_FIFO_DEPTH)
-		return -EINVAL;
+		return -EMSGSIZE;
+
+	if (tfr->tx_buf && tfr->len >= SUN4I_FIFO_DEPTH)
+		return -EMSGSIZE;
 
 	reinit_completion(&sspi->done);
 	sspi->tx_buf = tfr->tx_buf;
@@ -269,8 +273,12 @@ static int sun4i_spi_transfer_one(struct
 	sun4i_spi_write(sspi, SUN4I_BURST_CNT_REG, SUN4I_BURST_CNT(tfr->len));
 	sun4i_spi_write(sspi, SUN4I_XMIT_CNT_REG, SUN4I_XMIT_CNT(tx_len));
 
-	/* Fill the TX FIFO */
-	sun4i_spi_fill_fifo(sspi, SUN4I_FIFO_DEPTH);
+	/*
+	 * Fill the TX FIFO
+	 * Filling the FIFO fully causes timeout for some reason
+	 * at least on spi2 on A10s
+	 */
+	sun4i_spi_fill_fifo(sspi, SUN4I_FIFO_DEPTH - 1);
 
 	/* Enable the interrupts */
 	sun4i_spi_write(sspi, SUN4I_INT_CTL_REG, SUN4I_INT_CTL_TC);
@@ -279,9 +287,16 @@ static int sun4i_spi_transfer_one(struct
 	reg = sun4i_spi_read(sspi, SUN4I_CTL_REG);
 	sun4i_spi_write(sspi, SUN4I_CTL_REG, reg | SUN4I_CTL_XCH);
 
+	tx_time = max(tfr->len * 8 * 2 / (tfr->speed_hz / 1000), 100U);
+	start = jiffies;
 	timeout = wait_for_completion_timeout(&sspi->done,
-					      msecs_to_jiffies(1000));
+					      msecs_to_jiffies(tx_time));
+	end = jiffies;
 	if (!timeout) {
+		dev_warn(&master->dev,
+			 "%s: timeout transferring %u bytes@%iHz for %i(%i)ms",
+			 dev_name(&spi->dev), tfr->len, tfr->speed_hz,
+			 jiffies_to_msecs(end - start), tx_time);
 		ret = -ETIMEDOUT;
 		goto out;
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/spi/spi-sun6i.c linux-libre-4.4.107-gnu/drivers/spi/spi-sun6i.c
--- linux-libre-4.4-gnu/drivers/spi/spi-sun6i.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/spi/spi-sun6i.c	2017-12-20 04:05:01.000000000 -0500
@@ -160,6 +160,7 @@ static int sun6i_spi_transfer_one(struct
 {
 	struct sun6i_spi *sspi = spi_master_get_devdata(master);
 	unsigned int mclk_rate, div, timeout;
+	unsigned int start, end, tx_time;
 	unsigned int tx_len = 0;
 	int ret = 0;
 	u32 reg;
@@ -269,9 +270,16 @@ static int sun6i_spi_transfer_one(struct
 	reg = sun6i_spi_read(sspi, SUN6I_TFR_CTL_REG);
 	sun6i_spi_write(sspi, SUN6I_TFR_CTL_REG, reg | SUN6I_TFR_CTL_XCH);
 
+	tx_time = max(tfr->len * 8 * 2 / (tfr->speed_hz / 1000), 100U);
+	start = jiffies;
 	timeout = wait_for_completion_timeout(&sspi->done,
-					      msecs_to_jiffies(1000));
+					      msecs_to_jiffies(tx_time));
+	end = jiffies;
 	if (!timeout) {
+		dev_warn(&master->dev,
+			 "%s: timeout transferring %u bytes@%iHz for %i(%i)ms",
+			 dev_name(&spi->dev), tfr->len, tfr->speed_hz,
+			 jiffies_to_msecs(end - start), tx_time);
 		ret = -ETIMEDOUT;
 		goto out;
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/spi/spi-ti-qspi.c linux-libre-4.4.107-gnu/drivers/spi/spi-ti-qspi.c
--- linux-libre-4.4-gnu/drivers/spi/spi-ti-qspi.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/spi/spi-ti-qspi.c	2017-12-20 04:05:01.000000000 -0500
@@ -94,6 +94,7 @@ struct ti_qspi {
 #define QSPI_FLEN(n)			((n - 1) << 0)
 #define QSPI_WLEN_MAX_BITS		128
 #define QSPI_WLEN_MAX_BYTES		16
+#define QSPI_WLEN_MASK			QSPI_WLEN(QSPI_WLEN_MAX_BITS)
 
 /* STATUS REGISTER */
 #define BUSY				0x01
@@ -224,16 +225,16 @@ static inline int ti_qspi_poll_wc(struct
 	return  -ETIMEDOUT;
 }
 
-static int qspi_write_msg(struct ti_qspi *qspi, struct spi_transfer *t)
+static int qspi_write_msg(struct ti_qspi *qspi, struct spi_transfer *t,
+			  int count)
 {
-	int wlen, count, xfer_len;
+	int wlen, xfer_len;
 	unsigned int cmd;
 	const u8 *txbuf;
 	u32 data;
 
 	txbuf = t->tx_buf;
 	cmd = qspi->cmd | QSPI_WR_SNGL;
-	count = t->len;
 	wlen = t->bits_per_word >> 3;	/* in bytes */
 	xfer_len = wlen;
 
@@ -293,9 +294,10 @@ static int qspi_write_msg(struct ti_qspi
 	return 0;
 }
 
-static int qspi_read_msg(struct ti_qspi *qspi, struct spi_transfer *t)
+static int qspi_read_msg(struct ti_qspi *qspi, struct spi_transfer *t,
+			 int count)
 {
-	int wlen, count;
+	int wlen;
 	unsigned int cmd;
 	u8 *rxbuf;
 
@@ -312,7 +314,6 @@ static int qspi_read_msg(struct ti_qspi
 		cmd |= QSPI_RD_SNGL;
 		break;
 	}
-	count = t->len;
 	wlen = t->bits_per_word >> 3;	/* in bytes */
 
 	while (count) {
@@ -343,12 +344,13 @@ static int qspi_read_msg(struct ti_qspi
 	return 0;
 }
 
-static int qspi_transfer_msg(struct ti_qspi *qspi, struct spi_transfer *t)
+static int qspi_transfer_msg(struct ti_qspi *qspi, struct spi_transfer *t,
+			     int count)
 {
 	int ret;
 
 	if (t->tx_buf) {
-		ret = qspi_write_msg(qspi, t);
+		ret = qspi_write_msg(qspi, t, count);
 		if (ret) {
 			dev_dbg(qspi->dev, "Error while writing\n");
 			return ret;
@@ -356,7 +358,7 @@ static int qspi_transfer_msg(struct ti_q
 	}
 
 	if (t->rx_buf) {
-		ret = qspi_read_msg(qspi, t);
+		ret = qspi_read_msg(qspi, t, count);
 		if (ret) {
 			dev_dbg(qspi->dev, "Error while reading\n");
 			return ret;
@@ -373,7 +375,8 @@ static int ti_qspi_start_transfer_one(st
 	struct spi_device *spi = m->spi;
 	struct spi_transfer *t;
 	int status = 0, ret;
-	int frame_length;
+	unsigned int frame_len_words, transfer_len_words;
+	int wlen;
 
 	/* setup device control reg */
 	qspi->dc = 0;
@@ -385,30 +388,38 @@ static int ti_qspi_start_transfer_one(st
 	if (spi->mode & SPI_CS_HIGH)
 		qspi->dc |= QSPI_CSPOL(spi->chip_select);
 
-	frame_length = (m->frame_length << 3) / spi->bits_per_word;
-
-	frame_length = clamp(frame_length, 0, QSPI_FRAME);
+	frame_len_words = 0;
+	list_for_each_entry(t, &m->transfers, transfer_list)
+		frame_len_words += t->len / (t->bits_per_word >> 3);
+	frame_len_words = min_t(unsigned int, frame_len_words, QSPI_FRAME);
 
 	/* setup command reg */
 	qspi->cmd = 0;
 	qspi->cmd |= QSPI_EN_CS(spi->chip_select);
-	qspi->cmd |= QSPI_FLEN(frame_length);
+	qspi->cmd |= QSPI_FLEN(frame_len_words);
 
 	ti_qspi_write(qspi, qspi->dc, QSPI_SPI_DC_REG);
 
 	mutex_lock(&qspi->list_lock);
 
 	list_for_each_entry(t, &m->transfers, transfer_list) {
-		qspi->cmd |= QSPI_WLEN(t->bits_per_word);
+		qspi->cmd = ((qspi->cmd & ~QSPI_WLEN_MASK) |
+			     QSPI_WLEN(t->bits_per_word));
 
-		ret = qspi_transfer_msg(qspi, t);
+		wlen = t->bits_per_word >> 3;
+		transfer_len_words = min(t->len / wlen, frame_len_words);
+
+		ret = qspi_transfer_msg(qspi, t, transfer_len_words * wlen);
 		if (ret) {
 			dev_dbg(qspi->dev, "transfer message failed\n");
 			mutex_unlock(&qspi->list_lock);
 			return -EINVAL;
 		}
 
-		m->actual_length += t->len;
+		m->actual_length += transfer_len_words * wlen;
+		frame_len_words -= transfer_len_words;
+		if (frame_len_words == 0)
+			break;
 	}
 
 	mutex_unlock(&qspi->list_lock);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/spmi/spmi.c linux-libre-4.4.107-gnu/drivers/spmi/spmi.c
--- linux-libre-4.4-gnu/drivers/spmi/spmi.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/spmi/spmi.c	2017-12-20 04:05:01.000000000 -0500
@@ -364,11 +364,23 @@ static int spmi_drv_remove(struct device
 	return 0;
 }
 
+static int spmi_drv_uevent(struct device *dev, struct kobj_uevent_env *env)
+{
+	int ret;
+
+	ret = of_device_uevent_modalias(dev, env);
+	if (ret != -ENODEV)
+		return ret;
+
+	return 0;
+}
+
 static struct bus_type spmi_bus_type = {
 	.name		= "spmi",
 	.match		= spmi_device_match,
 	.probe		= spmi_drv_probe,
 	.remove		= spmi_drv_remove,
+	.uevent		= spmi_drv_uevent,
 };
 
 /**
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/ssb/pci.c linux-libre-4.4.107-gnu/drivers/ssb/pci.c
--- linux-libre-4.4-gnu/drivers/ssb/pci.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/ssb/pci.c	2017-12-20 04:05:01.000000000 -0500
@@ -909,6 +909,7 @@ static int ssb_pci_sprom_get(struct ssb_
 			if (err) {
 				ssb_warn("WARNING: Using fallback SPROM failed (err %d)\n",
 					 err);
+				goto out_free;
 			} else {
 				ssb_dbg("Using SPROM revision %d provided by platform\n",
 					sprom->revision);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/staging/android/ashmem.c linux-libre-4.4.107-gnu/drivers/staging/android/ashmem.c
--- linux-libre-4.4-gnu/drivers/staging/android/ashmem.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/staging/android/ashmem.c	2017-12-20 04:05:01.000000000 -0500
@@ -392,6 +392,7 @@ static int ashmem_mmap(struct file *file
 			ret = PTR_ERR(vmfile);
 			goto out;
 		}
+		vmfile->f_mode |= FMODE_LSEEK;
 		asma->file = vmfile;
 	}
 	get_file(asma->file);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/staging/android/ion/ion.c linux-libre-4.4.107-gnu/drivers/staging/android/ion/ion.c
--- linux-libre-4.4-gnu/drivers/staging/android/ion/ion.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/staging/android/ion/ion.c	2017-12-20 04:05:01.000000000 -0500
@@ -251,8 +251,10 @@ static struct ion_buffer *ion_buffer_cre
 	 * memory coming from the heaps is ready for dma, ie if it has a
 	 * cached mapping that mapping has been invalidated
 	 */
-	for_each_sg(buffer->sg_table->sgl, sg, buffer->sg_table->nents, i)
+	for_each_sg(buffer->sg_table->sgl, sg, buffer->sg_table->nents, i) {
 		sg_dma_address(sg) = sg_phys(sg);
+		sg_dma_len(sg) = sg->length;
+	}
 	mutex_lock(&dev->buffer_lock);
 	ion_buffer_add(dev, buffer);
 	mutex_unlock(&dev->buffer_lock);
@@ -385,13 +387,22 @@ static void ion_handle_get(struct ion_ha
 	kref_get(&handle->ref);
 }
 
-static int ion_handle_put(struct ion_handle *handle)
+static int ion_handle_put_nolock(struct ion_handle *handle)
+{
+	int ret;
+
+	ret = kref_put(&handle->ref, ion_handle_destroy);
+
+	return ret;
+}
+
+int ion_handle_put(struct ion_handle *handle)
 {
 	struct ion_client *client = handle->client;
 	int ret;
 
 	mutex_lock(&client->lock);
-	ret = kref_put(&handle->ref, ion_handle_destroy);
+	ret = ion_handle_put_nolock(handle);
 	mutex_unlock(&client->lock);
 
 	return ret;
@@ -415,20 +426,30 @@ static struct ion_handle *ion_handle_loo
 	return ERR_PTR(-EINVAL);
 }
 
-static struct ion_handle *ion_handle_get_by_id(struct ion_client *client,
+static struct ion_handle *ion_handle_get_by_id_nolock(struct ion_client *client,
 						int id)
 {
 	struct ion_handle *handle;
 
-	mutex_lock(&client->lock);
 	handle = idr_find(&client->idr, id);
 	if (handle)
 		ion_handle_get(handle);
-	mutex_unlock(&client->lock);
 
 	return handle ? handle : ERR_PTR(-EINVAL);
 }
 
+struct ion_handle *ion_handle_get_by_id(struct ion_client *client,
+						int id)
+{
+	struct ion_handle *handle;
+
+	mutex_lock(&client->lock);
+	handle = ion_handle_get_by_id_nolock(client, id);
+	mutex_unlock(&client->lock);
+
+	return handle;
+}
+
 static bool ion_handle_validate(struct ion_client *client,
 				struct ion_handle *handle)
 {
@@ -530,22 +551,28 @@ struct ion_handle *ion_alloc(struct ion_
 }
 EXPORT_SYMBOL(ion_alloc);
 
-void ion_free(struct ion_client *client, struct ion_handle *handle)
+static void ion_free_nolock(struct ion_client *client, struct ion_handle *handle)
 {
 	bool valid_handle;
 
 	BUG_ON(client != handle->client);
 
-	mutex_lock(&client->lock);
 	valid_handle = ion_handle_validate(client, handle);
 
 	if (!valid_handle) {
 		WARN(1, "%s: invalid handle passed to free.\n", __func__);
-		mutex_unlock(&client->lock);
 		return;
 	}
+	ion_handle_put_nolock(handle);
+}
+
+void ion_free(struct ion_client *client, struct ion_handle *handle)
+{
+	BUG_ON(client != handle->client);
+
+	mutex_lock(&client->lock);
+	ion_free_nolock(client, handle);
 	mutex_unlock(&client->lock);
-	ion_handle_put(handle);
 }
 EXPORT_SYMBOL(ion_free);
 
@@ -1281,11 +1308,15 @@ static long ion_ioctl(struct file *filp,
 	{
 		struct ion_handle *handle;
 
-		handle = ion_handle_get_by_id(client, data.handle.handle);
-		if (IS_ERR(handle))
+		mutex_lock(&client->lock);
+		handle = ion_handle_get_by_id_nolock(client, data.handle.handle);
+		if (IS_ERR(handle)) {
+			mutex_unlock(&client->lock);
 			return PTR_ERR(handle);
-		ion_free(client, handle);
-		ion_handle_put(handle);
+		}
+		ion_free_nolock(client, handle);
+		ion_handle_put_nolock(handle);
+		mutex_unlock(&client->lock);
 		break;
 	}
 	case ION_IOC_SHARE:
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/staging/android/ion/ion_test.c linux-libre-4.4.107-gnu/drivers/staging/android/ion/ion_test.c
--- linux-libre-4.4-gnu/drivers/staging/android/ion/ion_test.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/staging/android/ion/ion_test.c	2017-12-20 04:05:01.000000000 -0500
@@ -285,8 +285,8 @@ static int __init ion_test_init(void)
 {
 	ion_test_pdev = platform_device_register_simple("ion-test",
 							-1, NULL, 0);
-	if (!ion_test_pdev)
-		return -ENODEV;
+	if (IS_ERR(ion_test_pdev))
+		return PTR_ERR(ion_test_pdev);
 
 	return platform_driver_probe(&ion_test_platform_driver, ion_test_probe);
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/staging/comedi/comedi_fops.c linux-libre-4.4.107-gnu/drivers/staging/comedi/comedi_fops.c
--- linux-libre-4.4-gnu/drivers/staging/comedi/comedi_fops.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/staging/comedi/comedi_fops.c	2017-12-20 04:05:01.000000000 -0500
@@ -2901,9 +2901,6 @@ static int __init comedi_init(void)
 
 	comedi_class->dev_groups = comedi_dev_groups;
 
-	/* XXX requires /proc interface */
-	comedi_proc_init();
-
 	/* create devices files for legacy/manual use */
 	for (i = 0; i < comedi_num_legacy_minors; i++) {
 		struct comedi_device *dev;
@@ -2911,6 +2908,7 @@ static int __init comedi_init(void)
 		dev = comedi_alloc_board_minor(NULL);
 		if (IS_ERR(dev)) {
 			comedi_cleanup_board_minors();
+			class_destroy(comedi_class);
 			cdev_del(&comedi_cdev);
 			unregister_chrdev_region(MKDEV(COMEDI_MAJOR, 0),
 						 COMEDI_NUM_MINORS);
@@ -2920,6 +2918,9 @@ static int __init comedi_init(void)
 		mutex_unlock(&dev->mutex);
 	}
 
+	/* XXX requires /proc interface */
+	comedi_proc_init();
+
 	return 0;
 }
 module_init(comedi_init);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/staging/comedi/drivers/comedi_test.c linux-libre-4.4.107-gnu/drivers/staging/comedi/drivers/comedi_test.c
--- linux-libre-4.4-gnu/drivers/staging/comedi/drivers/comedi_test.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/staging/comedi/drivers/comedi_test.c	2017-12-20 04:05:01.000000000 -0500
@@ -56,11 +56,6 @@
 
 #define N_CHANS 8
 
-enum waveform_state_bits {
-	WAVEFORM_AI_RUNNING,
-	WAVEFORM_AO_RUNNING
-};
-
 /* Data unique to this driver */
 struct waveform_private {
 	struct timer_list ai_timer;	/* timer for AI commands */
@@ -68,7 +63,6 @@ struct waveform_private {
 	unsigned int wf_amplitude;	/* waveform amplitude in microvolts */
 	unsigned int wf_period;		/* waveform period in microseconds */
 	unsigned int wf_current;	/* current time in waveform period */
-	unsigned long state_bits;
 	unsigned int ai_scan_period;	/* AI scan period in usec */
 	unsigned int ai_convert_period;	/* AI conversion period in usec */
 	struct timer_list ao_timer;	/* timer for AO commands */
@@ -191,10 +185,6 @@ static void waveform_ai_timer(unsigned l
 	unsigned int nsamples;
 	unsigned int time_increment;
 
-	/* check command is still active */
-	if (!test_bit(WAVEFORM_AI_RUNNING, &devpriv->state_bits))
-		return;
-
 	now = ktime_to_us(ktime_get());
 	nsamples = comedi_nsamples_left(s, UINT_MAX);
 
@@ -386,11 +376,6 @@ static int waveform_ai_cmd(struct comedi
 	 */
 	devpriv->ai_timer.expires =
 		jiffies + usecs_to_jiffies(devpriv->ai_convert_period) + 1;
-
-	/* mark command as active */
-	smp_mb__before_atomic();
-	set_bit(WAVEFORM_AI_RUNNING, &devpriv->state_bits);
-	smp_mb__after_atomic();
 	add_timer(&devpriv->ai_timer);
 	return 0;
 }
@@ -400,11 +385,12 @@ static int waveform_ai_cancel(struct com
 {
 	struct waveform_private *devpriv = dev->private;
 
-	/* mark command as no longer active */
-	clear_bit(WAVEFORM_AI_RUNNING, &devpriv->state_bits);
-	smp_mb__after_atomic();
-	/* cannot call del_timer_sync() as may be called from timer routine */
-	del_timer(&devpriv->ai_timer);
+	if (in_softirq()) {
+		/* Assume we were called from the timer routine itself. */
+		del_timer(&devpriv->ai_timer);
+	} else {
+		del_timer_sync(&devpriv->ai_timer);
+	}
 	return 0;
 }
 
@@ -436,10 +422,6 @@ static void waveform_ao_timer(unsigned l
 	u64 scans_since;
 	unsigned int scans_avail = 0;
 
-	/* check command is still active */
-	if (!test_bit(WAVEFORM_AO_RUNNING, &devpriv->state_bits))
-		return;
-
 	/* determine number of scan periods since last time */
 	now = ktime_to_us(ktime_get());
 	scans_since = now - devpriv->ao_last_scan_time;
@@ -518,11 +500,6 @@ static int waveform_ao_inttrig_start(str
 	devpriv->ao_last_scan_time = ktime_to_us(ktime_get());
 	devpriv->ao_timer.expires =
 		jiffies + usecs_to_jiffies(devpriv->ao_scan_period);
-
-	/* mark command as active */
-	smp_mb__before_atomic();
-	set_bit(WAVEFORM_AO_RUNNING, &devpriv->state_bits);
-	smp_mb__after_atomic();
 	add_timer(&devpriv->ao_timer);
 
 	return 1;
@@ -608,11 +585,12 @@ static int waveform_ao_cancel(struct com
 	struct waveform_private *devpriv = dev->private;
 
 	s->async->inttrig = NULL;
-	/* mark command as no longer active */
-	clear_bit(WAVEFORM_AO_RUNNING, &devpriv->state_bits);
-	smp_mb__after_atomic();
-	/* cannot call del_timer_sync() as may be called from timer routine */
-	del_timer(&devpriv->ao_timer);
+	if (in_softirq()) {
+		/* Assume we were called from the timer routine itself. */
+		del_timer(&devpriv->ao_timer);
+	} else {
+		del_timer_sync(&devpriv->ao_timer);
+	}
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/staging/comedi/drivers/daqboard2000.c linux-libre-4.4.107-gnu/drivers/staging/comedi/drivers/daqboard2000.c
--- linux-libre-4.4-gnu/drivers/staging/comedi/drivers/daqboard2000.c	2016-01-10 21:13:27.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/staging/comedi/drivers/daqboard2000.c	2017-12-20 11:41:50.000000000 -0500
@@ -636,7 +636,7 @@ static const void *daqboard2000_find_boa
 	const struct daq200_boardtype *board;
 	int i;
 
-	if (pcidev->subsystem_device != PCI_VENDOR_ID_IOTECH)
+	if (pcidev->subsystem_vendor != PCI_VENDOR_ID_IOTECH)
 		return NULL;
 
 	for (i = 0; i < ARRAY_SIZE(boardtypes); i++) {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/staging/comedi/drivers/das1800.c linux-libre-4.4.107-gnu/drivers/staging/comedi/drivers/das1800.c
--- linux-libre-4.4-gnu/drivers/staging/comedi/drivers/das1800.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/staging/comedi/drivers/das1800.c	2017-12-20 04:05:01.000000000 -0500
@@ -567,14 +567,17 @@ static int das1800_cancel(struct comedi_
 	struct comedi_isadma_desc *desc;
 	int i;
 
-	outb(0x0, dev->iobase + DAS1800_STATUS);	/* disable conversions */
-	outb(0x0, dev->iobase + DAS1800_CONTROL_B);	/* disable interrupts and dma */
-	outb(0x0, dev->iobase + DAS1800_CONTROL_A);	/* disable and clear fifo and stop triggering */
+	/* disable and stop conversions */
+	outb(0x0, dev->iobase + DAS1800_STATUS);
+	outb(0x0, dev->iobase + DAS1800_CONTROL_B);
+	outb(0x0, dev->iobase + DAS1800_CONTROL_A);
 
-	for (i = 0; i < 2; i++) {
-		desc = &dma->desc[i];
-		if (desc->chan)
-			comedi_isadma_disable(desc->chan);
+	if (dma) {
+		for (i = 0; i < 2; i++) {
+			desc = &dma->desc[i];
+			if (desc->chan)
+				comedi_isadma_disable(desc->chan);
+		}
 	}
 
 	return 0;
@@ -934,13 +937,14 @@ static void das1800_ai_setup_dma(struct
 {
 	struct das1800_private *devpriv = dev->private;
 	struct comedi_isadma *dma = devpriv->dma;
-	struct comedi_isadma_desc *desc = &dma->desc[0];
+	struct comedi_isadma_desc *desc;
 	unsigned int bytes;
 
 	if ((devpriv->irq_dma_bits & DMA_ENABLED) == 0)
 		return;
 
 	dma->cur_dma = 0;
+	desc = &dma->desc[0];
 
 	/* determine a dma transfer size to fill buffer in 0.3 sec */
 	bytes = das1800_ai_transfer_size(dev, s, desc->maxsize, 300000000);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/staging/comedi/drivers/dt282x.c linux-libre-4.4.107-gnu/drivers/staging/comedi/drivers/dt282x.c
--- linux-libre-4.4-gnu/drivers/staging/comedi/drivers/dt282x.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/staging/comedi/drivers/dt282x.c	2017-12-20 04:05:01.000000000 -0500
@@ -69,48 +69,49 @@
  * Register map
  */
 #define DT2821_ADCSR_REG		0x00
-#define DT2821_ADCSR_ADERR		(1 << 15)
-#define DT2821_ADCSR_ADCLK		(1 << 9)
-#define DT2821_ADCSR_MUXBUSY		(1 << 8)
-#define DT2821_ADCSR_ADDONE		(1 << 7)
-#define DT2821_ADCSR_IADDONE		(1 << 6)
+#define DT2821_ADCSR_ADERR		BIT(15)
+#define DT2821_ADCSR_ADCLK		BIT(9)
+#define DT2821_ADCSR_MUXBUSY		BIT(8)
+#define DT2821_ADCSR_ADDONE		BIT(7)
+#define DT2821_ADCSR_IADDONE		BIT(6)
 #define DT2821_ADCSR_GS(x)		(((x) & 0x3) << 4)
 #define DT2821_ADCSR_CHAN(x)		(((x) & 0xf) << 0)
 #define DT2821_CHANCSR_REG		0x02
-#define DT2821_CHANCSR_LLE		(1 << 15)
-#define DT2821_CHANCSR_PRESLA(x)	(((x) & 0xf) >> 8)
+#define DT2821_CHANCSR_LLE		BIT(15)
+#define DT2821_CHANCSR_TO_PRESLA(x)	(((x) >> 8) & 0xf)
 #define DT2821_CHANCSR_NUMB(x)		((((x) - 1) & 0xf) << 0)
 #define DT2821_ADDAT_REG		0x04
 #define DT2821_DACSR_REG		0x06
-#define DT2821_DACSR_DAERR		(1 << 15)
+#define DT2821_DACSR_DAERR		BIT(15)
 #define DT2821_DACSR_YSEL(x)		((x) << 9)
-#define DT2821_DACSR_SSEL		(1 << 8)
-#define DT2821_DACSR_DACRDY		(1 << 7)
-#define DT2821_DACSR_IDARDY		(1 << 6)
-#define DT2821_DACSR_DACLK		(1 << 5)
-#define DT2821_DACSR_HBOE		(1 << 1)
-#define DT2821_DACSR_LBOE		(1 << 0)
+#define DT2821_DACSR_SSEL		BIT(8)
+#define DT2821_DACSR_DACRDY		BIT(7)
+#define DT2821_DACSR_IDARDY		BIT(6)
+#define DT2821_DACSR_DACLK		BIT(5)
+#define DT2821_DACSR_HBOE		BIT(1)
+#define DT2821_DACSR_LBOE		BIT(0)
 #define DT2821_DADAT_REG		0x08
 #define DT2821_DIODAT_REG		0x0a
 #define DT2821_SUPCSR_REG		0x0c
-#define DT2821_SUPCSR_DMAD		(1 << 15)
-#define DT2821_SUPCSR_ERRINTEN		(1 << 14)
-#define DT2821_SUPCSR_CLRDMADNE		(1 << 13)
-#define DT2821_SUPCSR_DDMA		(1 << 12)
-#define DT2821_SUPCSR_DS_PIO		(0 << 10)
-#define DT2821_SUPCSR_DS_AD_CLK		(1 << 10)
-#define DT2821_SUPCSR_DS_DA_CLK		(2 << 10)
-#define DT2821_SUPCSR_DS_AD_TRIG	(3 << 10)
-#define DT2821_SUPCSR_BUFFB		(1 << 9)
-#define DT2821_SUPCSR_SCDN		(1 << 8)
-#define DT2821_SUPCSR_DACON		(1 << 7)
-#define DT2821_SUPCSR_ADCINIT		(1 << 6)
-#define DT2821_SUPCSR_DACINIT		(1 << 5)
-#define DT2821_SUPCSR_PRLD		(1 << 4)
-#define DT2821_SUPCSR_STRIG		(1 << 3)
-#define DT2821_SUPCSR_XTRIG		(1 << 2)
-#define DT2821_SUPCSR_XCLK		(1 << 1)
-#define DT2821_SUPCSR_BDINIT		(1 << 0)
+#define DT2821_SUPCSR_DMAD		BIT(15)
+#define DT2821_SUPCSR_ERRINTEN		BIT(14)
+#define DT2821_SUPCSR_CLRDMADNE		BIT(13)
+#define DT2821_SUPCSR_DDMA		BIT(12)
+#define DT2821_SUPCSR_DS(x)		(((x) & 0x3) << 10)
+#define DT2821_SUPCSR_DS_PIO		DT2821_SUPCSR_DS(0)
+#define DT2821_SUPCSR_DS_AD_CLK		DT2821_SUPCSR_DS(1)
+#define DT2821_SUPCSR_DS_DA_CLK		DT2821_SUPCSR_DS(2)
+#define DT2821_SUPCSR_DS_AD_TRIG	DT2821_SUPCSR_DS(3)
+#define DT2821_SUPCSR_BUFFB		BIT(9)
+#define DT2821_SUPCSR_SCDN		BIT(8)
+#define DT2821_SUPCSR_DACON		BIT(7)
+#define DT2821_SUPCSR_ADCINIT		BIT(6)
+#define DT2821_SUPCSR_DACINIT		BIT(5)
+#define DT2821_SUPCSR_PRLD		BIT(4)
+#define DT2821_SUPCSR_STRIG		BIT(3)
+#define DT2821_SUPCSR_XTRIG		BIT(2)
+#define DT2821_SUPCSR_XCLK		BIT(1)
+#define DT2821_SUPCSR_BDINIT		BIT(0)
 #define DT2821_TMRCTR_REG		0x0e
 
 static const struct comedi_lrange range_dt282x_ai_lo_bipolar = {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/staging/comedi/drivers/jr3_pci.c linux-libre-4.4.107-gnu/drivers/staging/comedi/drivers/jr3_pci.c
--- linux-libre-4.4-gnu/drivers/staging/comedi/drivers/jr3_pci.c	2016-01-10 21:13:29.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/staging/comedi/drivers/jr3_pci.c	2017-12-20 11:41:55.000000000 -0500
@@ -605,7 +605,7 @@ static void jr3_pci_poll_dev(unsigned lo
 		s = &dev->subdevices[i];
 		spriv = s->private;
 
-		if (now > spriv->next_time_min) {
+		if (time_after_eq(now, spriv->next_time_min)) {
 			struct jr3_pci_poll_delay sub_delay;
 
 			sub_delay = jr3_pci_poll_subdevice(s);
@@ -721,11 +721,12 @@ static int jr3_pci_auto_attach(struct co
 		s->insn_read	= jr3_pci_ai_insn_read;
 
 		spriv = jr3_pci_alloc_spriv(dev, s);
-		if (spriv) {
-			/* Channel specific range and maxdata */
-			s->range_table_list	= spriv->range_table_list;
-			s->maxdata_list		= spriv->maxdata_list;
-		}
+		if (!spriv)
+			return -ENOMEM;
+
+		/* Channel specific range and maxdata */
+		s->range_table_list	= spriv->range_table_list;
+		s->maxdata_list		= spriv->maxdata_list;
 	}
 
 	/*  Reset DSP card */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/staging/comedi/drivers/ni_mio_common.c linux-libre-4.4.107-gnu/drivers/staging/comedi/drivers/ni_mio_common.c
--- linux-libre-4.4-gnu/drivers/staging/comedi/drivers/ni_mio_common.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/staging/comedi/drivers/ni_mio_common.c	2017-12-20 04:05:01.000000000 -0500
@@ -246,24 +246,24 @@ static void ni_writel(struct comedi_devi
 {
 	if (dev->mmio)
 		writel(data, dev->mmio + reg);
-
-	outl(data, dev->iobase + reg);
+	else
+		outl(data, dev->iobase + reg);
 }
 
 static void ni_writew(struct comedi_device *dev, uint16_t data, int reg)
 {
 	if (dev->mmio)
 		writew(data, dev->mmio + reg);
-
-	outw(data, dev->iobase + reg);
+	else
+		outw(data, dev->iobase + reg);
 }
 
 static void ni_writeb(struct comedi_device *dev, uint8_t data, int reg)
 {
 	if (dev->mmio)
 		writeb(data, dev->mmio + reg);
-
-	outb(data, dev->iobase + reg);
+	else
+		outb(data, dev->iobase + reg);
 }
 
 static uint32_t ni_readl(struct comedi_device *dev, int reg)
@@ -1929,7 +1929,7 @@ static int ni_ai_insn_read(struct comedi
 			   unsigned int *data)
 {
 	struct ni_private *devpriv = dev->private;
-	unsigned int mask = (s->maxdata + 1) >> 1;
+	unsigned int mask = s->maxdata;
 	int i, n;
 	unsigned signbits;
 	unsigned int d;
@@ -1972,7 +1972,7 @@ static int ni_ai_insn_read(struct comedi
 				return -ETIME;
 			}
 			d += signbits;
-			data[n] = d;
+			data[n] = d & 0xffff;
 		}
 	} else if (devpriv->is_6143) {
 		for (n = 0; n < insn->n; n++) {
@@ -2017,8 +2017,8 @@ static int ni_ai_insn_read(struct comedi
 				data[n] = dl;
 			} else {
 				d = ni_readw(dev, NI_E_AI_FIFO_DATA_REG);
-				d += signbits;	/* subtle: needs to be short addition */
-				data[n] = d;
+				d += signbits;
+				data[n] = d & 0xffff;
 			}
 		}
 	}
@@ -2823,7 +2823,15 @@ static int ni_ao_inttrig(struct comedi_d
 	int i;
 	static const int timeout = 1000;
 
-	if (trig_num != cmd->start_arg)
+	/*
+	 * Require trig_num == cmd->start_arg when cmd->start_src == TRIG_INT.
+	 * For backwards compatibility, also allow trig_num == 0 when
+	 * cmd->start_src != TRIG_INT (i.e. when cmd->start_src == TRIG_EXT);
+	 * in that case, the internal trigger is being used as a pre-trigger
+	 * before the external trigger.
+	 */
+	if (!(trig_num == cmd->start_arg ||
+	      (trig_num == 0 && cmd->start_src != TRIG_INT)))
 		return -EINVAL;
 
 	/* Null trig at beginning prevent ao start trigger from executing more than
@@ -5346,7 +5354,7 @@ static int ni_E_init(struct comedi_devic
 		s->maxdata	= (devpriv->is_m_series) ? 0xffffffff
 							 : 0x00ffffff;
 		s->insn_read	= ni_tio_insn_read;
-		s->insn_write	= ni_tio_insn_read;
+		s->insn_write	= ni_tio_insn_write;
 		s->insn_config	= ni_tio_insn_config;
 #ifdef PCIDMA
 		if (dev->irq && devpriv->mite) {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/staging/comedi/drivers/ni_tiocmd.c linux-libre-4.4.107-gnu/drivers/staging/comedi/drivers/ni_tiocmd.c
--- linux-libre-4.4-gnu/drivers/staging/comedi/drivers/ni_tiocmd.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/staging/comedi/drivers/ni_tiocmd.c	2017-12-20 04:05:01.000000000 -0500
@@ -92,7 +92,7 @@ static int ni_tio_input_inttrig(struct c
 	unsigned long flags;
 	int ret = 0;
 
-	if (trig_num != cmd->start_src)
+	if (trig_num != cmd->start_arg)
 		return -EINVAL;
 
 	spin_lock_irqsave(&counter->lock, flags);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/staging/emxx_udc/emxx_udc.c linux-libre-4.4.107-gnu/drivers/staging/emxx_udc/emxx_udc.c
--- linux-libre-4.4-gnu/drivers/staging/emxx_udc/emxx_udc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/staging/emxx_udc/emxx_udc.c	2017-12-20 04:05:01.000000000 -0500
@@ -3181,7 +3181,7 @@ static const struct {
 };
 
 /*-------------------------------------------------------------------------*/
-static void __init nbu2ss_drv_ep_init(struct nbu2ss_udc *udc)
+static void nbu2ss_drv_ep_init(struct nbu2ss_udc *udc)
 {
 	int	i;
 
@@ -3211,7 +3211,7 @@ static void __init nbu2ss_drv_ep_init(st
 
 /*-------------------------------------------------------------------------*/
 /* platform_driver */
-static int __init nbu2ss_drv_contest_init(
+static int nbu2ss_drv_contest_init(
 	struct platform_device *pdev,
 	struct nbu2ss_udc *udc)
 {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/staging/fbtft/fbtft-core.c linux-libre-4.4.107-gnu/drivers/staging/fbtft/fbtft-core.c
--- linux-libre-4.4-gnu/drivers/staging/fbtft/fbtft-core.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/staging/fbtft/fbtft-core.c	2017-12-20 04:05:01.000000000 -0500
@@ -392,11 +392,11 @@ static void fbtft_update_display(struct
 
 	if (unlikely(timeit)) {
 		ts_end = ktime_get();
-		if (ktime_to_ns(par->update_time))
+		if (!ktime_to_ns(par->update_time))
 			par->update_time = ts_start;
 
-		par->update_time = ts_start;
 		fps = ktime_us_delta(ts_start, par->update_time);
+		par->update_time = ts_start;
 		fps = fps ? 1000000 / fps : 0;
 
 		throughput = ktime_us_delta(ts_end, ts_start);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/staging/gdm724x/gdm_mux.c linux-libre-4.4.107-gnu/drivers/staging/gdm724x/gdm_mux.c
--- linux-libre-4.4-gnu/drivers/staging/gdm724x/gdm_mux.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/staging/gdm724x/gdm_mux.c	2017-12-20 04:05:01.000000000 -0500
@@ -670,14 +670,14 @@ static int __init gdm_usb_mux_init(void)
 
 static void __exit gdm_usb_mux_exit(void)
 {
-	unregister_lte_tty_driver();
-
 	if (mux_rx_wq) {
 		flush_workqueue(mux_rx_wq);
 		destroy_workqueue(mux_rx_wq);
 	}
 
 	usb_deregister(&gdm_mux_driver);
+	unregister_lte_tty_driver();
+
 }
 
 module_init(gdm_usb_mux_init);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/staging/iio/accel/sca3000_core.c linux-libre-4.4.107-gnu/drivers/staging/iio/accel/sca3000_core.c
--- linux-libre-4.4-gnu/drivers/staging/iio/accel/sca3000_core.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/staging/iio/accel/sca3000_core.c	2017-12-20 04:05:01.000000000 -0500
@@ -595,7 +595,7 @@ static ssize_t sca3000_read_frequency(st
 		goto error_ret_mut;
 	ret = sca3000_read_ctrl_reg(st, SCA3000_REG_CTRL_SEL_OUT_CTRL);
 	mutex_unlock(&st->lock);
-	if (ret)
+	if (ret < 0)
 		goto error_ret;
 	val = ret;
 	if (base_freq > 0)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/staging/iio/adc/ad7192.c linux-libre-4.4.107-gnu/drivers/staging/iio/adc/ad7192.c
--- linux-libre-4.4-gnu/drivers/staging/iio/adc/ad7192.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/staging/iio/adc/ad7192.c	2017-12-20 04:05:01.000000000 -0500
@@ -205,11 +205,9 @@ static int ad7192_setup(struct ad7192_st
 	struct iio_dev *indio_dev = spi_get_drvdata(st->sd.spi);
 	unsigned long long scale_uv;
 	int i, ret, id;
-	u8 ones[6];
 
 	/* reset the serial interface */
-	memset(&ones, 0xFF, 6);
-	ret = spi_write(st->sd.spi, &ones, 6);
+	ret = ad_sd_reset(&st->sd, 48);
 	if (ret < 0)
 		goto out;
 	usleep_range(500, 1000); /* Wait for at least 500us */
@@ -236,7 +234,7 @@ static int ad7192_setup(struct ad7192_st
 			st->mclk = pdata->ext_clk_hz;
 		else
 			st->mclk = AD7192_INT_FREQ_MHZ;
-			break;
+		break;
 	default:
 		ret = -EINVAL;
 		goto out;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/staging/iio/adc/ad7606_core.c linux-libre-4.4.107-gnu/drivers/staging/iio/adc/ad7606_core.c
--- linux-libre-4.4-gnu/drivers/staging/iio/adc/ad7606_core.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/staging/iio/adc/ad7606_core.c	2017-12-20 04:05:01.000000000 -0500
@@ -189,7 +189,7 @@ static ssize_t ad7606_store_oversampling
 	mutex_lock(&indio_dev->mlock);
 	gpio_set_value(st->pdata->gpio_os0, (ret >> 0) & 1);
 	gpio_set_value(st->pdata->gpio_os1, (ret >> 1) & 1);
-	gpio_set_value(st->pdata->gpio_os1, (ret >> 2) & 1);
+	gpio_set_value(st->pdata->gpio_os2, (ret >> 2) & 1);
 	st->oversampling = lval;
 	mutex_unlock(&indio_dev->mlock);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/staging/iio/cdc/ad7150.c linux-libre-4.4.107-gnu/drivers/staging/iio/cdc/ad7150.c
--- linux-libre-4.4-gnu/drivers/staging/iio/cdc/ad7150.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/staging/iio/cdc/ad7150.c	2017-12-20 04:05:01.000000000 -0500
@@ -272,7 +272,7 @@ static int ad7150_write_event_config(str
 error_ret:
 	mutex_unlock(&chip->state_lock);
 
-	return 0;
+	return ret;
 }
 
 static int ad7150_read_event_value(struct iio_dev *indio_dev,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/staging/iio/impedance-analyzer/ad5933.c linux-libre-4.4.107-gnu/drivers/staging/iio/impedance-analyzer/ad5933.c
--- linux-libre-4.4-gnu/drivers/staging/iio/impedance-analyzer/ad5933.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/staging/iio/impedance-analyzer/ad5933.c	2017-12-20 04:05:01.000000000 -0500
@@ -647,6 +647,7 @@ static void ad5933_work(struct work_stru
 	__be16 buf[2];
 	int val[2];
 	unsigned char status;
+	int ret;
 
 	mutex_lock(&indio_dev->mlock);
 	if (st->state == AD5933_CTRL_INIT_START_FREQ) {
@@ -654,19 +655,22 @@ static void ad5933_work(struct work_stru
 		ad5933_cmd(st, AD5933_CTRL_START_SWEEP);
 		st->state = AD5933_CTRL_START_SWEEP;
 		schedule_delayed_work(&st->work, st->poll_time_jiffies);
-		mutex_unlock(&indio_dev->mlock);
-		return;
+		goto out;
 	}
 
-	ad5933_i2c_read(st->client, AD5933_REG_STATUS, 1, &status);
+	ret = ad5933_i2c_read(st->client, AD5933_REG_STATUS, 1, &status);
+	if (ret)
+		goto out;
 
 	if (status & AD5933_STAT_DATA_VALID) {
 		int scan_count = bitmap_weight(indio_dev->active_scan_mask,
 					       indio_dev->masklength);
-		ad5933_i2c_read(st->client,
+		ret = ad5933_i2c_read(st->client,
 				test_bit(1, indio_dev->active_scan_mask) ?
 				AD5933_REG_REAL_DATA : AD5933_REG_IMAG_DATA,
 				scan_count * 2, (u8 *)buf);
+		if (ret)
+			goto out;
 
 		if (scan_count == 2) {
 			val[0] = be16_to_cpu(buf[0]);
@@ -678,8 +682,7 @@ static void ad5933_work(struct work_stru
 	} else {
 		/* no data available - try again later */
 		schedule_delayed_work(&st->work, st->poll_time_jiffies);
-		mutex_unlock(&indio_dev->mlock);
-		return;
+		goto out;
 	}
 
 	if (status & AD5933_STAT_SWEEP_DONE) {
@@ -691,7 +694,7 @@ static void ad5933_work(struct work_stru
 		ad5933_cmd(st, AD5933_CTRL_INC_FREQ);
 		schedule_delayed_work(&st->work, st->poll_time_jiffies);
 	}
-
+out:
 	mutex_unlock(&indio_dev->mlock);
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/staging/iio/resolver/ad2s1210.c linux-libre-4.4.107-gnu/drivers/staging/iio/resolver/ad2s1210.c
--- linux-libre-4.4-gnu/drivers/staging/iio/resolver/ad2s1210.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/staging/iio/resolver/ad2s1210.c	2017-12-20 04:05:01.000000000 -0500
@@ -468,7 +468,7 @@ static int ad2s1210_read_raw(struct iio_
 			     long m)
 {
 	struct ad2s1210_state *st = iio_priv(indio_dev);
-	bool negative;
+	u16 negative;
 	int ret = 0;
 	u16 pos;
 	s16 vel;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/staging/iio/trigger/iio-trig-bfin-timer.c linux-libre-4.4.107-gnu/drivers/staging/iio/trigger/iio-trig-bfin-timer.c
--- linux-libre-4.4-gnu/drivers/staging/iio/trigger/iio-trig-bfin-timer.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/staging/iio/trigger/iio-trig-bfin-timer.c	2017-12-20 04:05:01.000000000 -0500
@@ -259,7 +259,7 @@ out_free_irq:
 out1:
 	iio_trigger_unregister(st->trig);
 out:
-	iio_trigger_put(st->trig);
+	iio_trigger_free(st->trig);
 	return ret;
 }
 
@@ -272,7 +272,7 @@ static int iio_bfin_tmr_trigger_remove(s
 		peripheral_free(st->t->pin);
 	free_irq(st->irq, st);
 	iio_trigger_unregister(st->trig);
-	iio_trigger_put(st->trig);
+	iio_trigger_free(st->trig);
 
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/staging/lustre/lustre/include/lustre/lustre_user.h linux-libre-4.4.107-gnu/drivers/staging/lustre/lustre/include/lustre/lustre_user.h
--- linux-libre-4.4-gnu/drivers/staging/lustre/lustre/include/lustre/lustre_user.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/staging/lustre/lustre/include/lustre/lustre_user.h	2017-12-20 04:05:01.000000000 -0500
@@ -1063,23 +1063,21 @@ struct hsm_action_item {
  * \retval buffer
  */
 static inline char *hai_dump_data_field(struct hsm_action_item *hai,
-					char *buffer, int len)
+					char *buffer, size_t len)
 {
-	int i, sz, data_len;
+	int i, data_len;
 	char *ptr;
 
 	ptr = buffer;
-	sz = len;
 	data_len = hai->hai_len - sizeof(*hai);
-	for (i = 0 ; (i < data_len) && (sz > 0) ; i++) {
-		int cnt;
-
-		cnt = snprintf(ptr, sz, "%.2X",
-			       (unsigned char)hai->hai_data[i]);
-		ptr += cnt;
-		sz -= cnt;
+	for (i = 0; (i < data_len) && (len > 2); i++) {
+		snprintf(ptr, 3, "%02X", (unsigned char)hai->hai_data[i]);
+		ptr += 2;
+		len -= 2;
 	}
+
 	*ptr = '\0';
+
 	return buffer;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/staging/lustre/lustre/ldlm/ldlm_lock.c linux-libre-4.4.107-gnu/drivers/staging/lustre/lustre/ldlm/ldlm_lock.c
--- linux-libre-4.4-gnu/drivers/staging/lustre/lustre/ldlm/ldlm_lock.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/staging/lustre/lustre/ldlm/ldlm_lock.c	2017-12-20 04:05:01.000000000 -0500
@@ -550,6 +550,13 @@ struct ldlm_lock *__ldlm_handle2lock(con
 	if (lock == NULL)
 		return NULL;
 
+	if (lock->l_export && lock->l_export->exp_failed) {
+		CDEBUG(D_INFO, "lock export failed: lock %p, exp %p\n",
+		       lock, lock->l_export);
+		LDLM_LOCK_PUT(lock);
+		return NULL;
+	}
+
 	/* It's unlikely but possible that someone marked the lock as
 	 * destroyed after we did handle2object on it */
 	if (flags == 0 && ((lock->l_flags & LDLM_FL_DESTROYED) == 0)) {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/staging/lustre/lustre/llite/llite_internal.h linux-libre-4.4.107-gnu/drivers/staging/lustre/lustre/llite/llite_internal.h
--- linux-libre-4.4-gnu/drivers/staging/lustre/lustre/llite/llite_internal.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/staging/lustre/lustre/llite/llite_internal.h	2017-12-20 04:05:01.000000000 -0500
@@ -631,8 +631,6 @@ struct ll_file_data {
 
 struct lov_stripe_md;
 
-extern spinlock_t inode_lock;
-
 extern struct dentry *llite_root;
 extern struct kset *llite_kset;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/staging/lustre/lustre/llite/llite_mmap.c linux-libre-4.4.107-gnu/drivers/staging/lustre/lustre/llite/llite_mmap.c
--- linux-libre-4.4-gnu/drivers/staging/lustre/lustre/llite/llite_mmap.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/staging/lustre/lustre/llite/llite_mmap.c	2017-12-20 04:05:01.000000000 -0500
@@ -402,15 +402,13 @@ static int ll_page_mkwrite(struct vm_are
 		result = VM_FAULT_LOCKED;
 		break;
 	case -ENODATA:
+	case -EAGAIN:
 	case -EFAULT:
 		result = VM_FAULT_NOPAGE;
 		break;
 	case -ENOMEM:
 		result = VM_FAULT_OOM;
 		break;
-	case -EAGAIN:
-		result = VM_FAULT_RETRY;
-		break;
 	default:
 		result = VM_FAULT_SIGBUS;
 		break;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/staging/lustre/lustre/llite/rw26.c linux-libre-4.4.107-gnu/drivers/staging/lustre/lustre/llite/rw26.c
--- linux-libre-4.4-gnu/drivers/staging/lustre/lustre/llite/rw26.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/staging/lustre/lustre/llite/rw26.c	2017-12-20 04:05:01.000000000 -0500
@@ -376,6 +376,10 @@ static ssize_t ll_direct_IO_26(struct ki
 	if (!lli->lli_has_smd)
 		return -EBADF;
 
+	/* Check EOF by ourselves */
+	if (iov_iter_rw(iter) == READ && file_offset >= i_size_read(inode))
+		return 0;
+
 	/* FIXME: io smaller than PAGE_SIZE is broken on ia64 ??? */
 	if ((file_offset & ~CFS_PAGE_MASK) || (count & ~CFS_PAGE_MASK))
 		return -EINVAL;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/staging/lustre/lustre/lov/lov_pack.c linux-libre-4.4.107-gnu/drivers/staging/lustre/lustre/lov/lov_pack.c
--- linux-libre-4.4-gnu/drivers/staging/lustre/lustre/lov/lov_pack.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/staging/lustre/lustre/lov/lov_pack.c	2017-12-20 04:05:01.000000000 -0500
@@ -399,18 +399,10 @@ int lov_getstripe(struct obd_export *exp
 	struct lov_mds_md *lmmk = NULL;
 	int rc, lmm_size;
 	int lum_size;
-	mm_segment_t seg;
 
 	if (!lsm)
 		return -ENODATA;
 
-	/*
-	 * "Switch to kernel segment" to allow copying from kernel space by
-	 * copy_{to,from}_user().
-	 */
-	seg = get_fs();
-	set_fs(KERNEL_DS);
-
 	/* we only need the header part from user space to get lmm_magic and
 	 * lmm_stripe_count, (the header part is common to v1 and v3) */
 	lum_size = sizeof(struct lov_user_md_v1);
@@ -485,6 +477,5 @@ int lov_getstripe(struct obd_export *exp
 
 	obd_free_diskmd(exp, &lmmk);
 out_set:
-	set_fs(seg);
 	return rc;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/staging/lustre/lustre/ptlrpc/service.c linux-libre-4.4.107-gnu/drivers/staging/lustre/lustre/ptlrpc/service.c
--- linux-libre-4.4-gnu/drivers/staging/lustre/lustre/ptlrpc/service.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/staging/lustre/lustre/ptlrpc/service.c	2017-12-20 04:05:01.000000000 -0500
@@ -1240,20 +1240,15 @@ static int ptlrpc_server_hpreq_init(stru
 		 * it may hit swab race at LU-1044. */
 		if (req->rq_ops->hpreq_check) {
 			rc = req->rq_ops->hpreq_check(req);
-			/**
-			 * XXX: Out of all current
-			 * ptlrpc_hpreq_ops::hpreq_check(), only
-			 * ldlm_cancel_hpreq_check() can return an error code;
-			 * other functions assert in similar places, which seems
-			 * odd. What also does not seem right is that handlers
-			 * for those RPCs do not assert on the same checks, but
-			 * rather handle the error cases. e.g. see
-			 * ost_rw_hpreq_check(), and ost_brw_read(),
-			 * ost_brw_write().
+			if (rc == -ESTALE) {
+				req->rq_status = rc;
+				ptlrpc_error(req);
+			}
+			/** can only return error,
+			 * 0 for normal request,
+			 *  or 1 for high priority request
 			 */
-			if (rc < 0)
-				return rc;
-			LASSERT(rc == 0 || rc == 1);
+			LASSERT(rc <= 1);
 		}
 
 		spin_lock_bh(&req->rq_export->exp_rpc_lock);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/staging/nvec/nvec_ps2.c linux-libre-4.4.107-gnu/drivers/staging/nvec/nvec_ps2.c
--- linux-libre-4.4-gnu/drivers/staging/nvec/nvec_ps2.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/staging/nvec/nvec_ps2.c	2017-12-20 04:05:01.000000000 -0500
@@ -106,13 +106,12 @@ static int nvec_mouse_probe(struct platf
 {
 	struct nvec_chip *nvec = dev_get_drvdata(pdev->dev.parent);
 	struct serio *ser_dev;
-	char mouse_reset[] = { NVEC_PS2, SEND_COMMAND, PSMOUSE_RST, 3 };
 
-	ser_dev = devm_kzalloc(&pdev->dev, sizeof(struct serio), GFP_KERNEL);
+	ser_dev = kzalloc(sizeof(struct serio), GFP_KERNEL);
 	if (!ser_dev)
 		return -ENOMEM;
 
-	ser_dev->id.type = SERIO_PS_PSTHRU;
+	ser_dev->id.type = SERIO_8042;
 	ser_dev->write = ps2_sendcommand;
 	ser_dev->start = ps2_startstreaming;
 	ser_dev->stop = ps2_stopstreaming;
@@ -127,9 +126,6 @@ static int nvec_mouse_probe(struct platf
 
 	serio_register_port(ser_dev);
 
-	/* mouse reset */
-	nvec_write_async(nvec, mouse_reset, sizeof(mouse_reset));
-
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/staging/panel/panel.c linux-libre-4.4.107-gnu/drivers/staging/panel/panel.c
--- linux-libre-4.4-gnu/drivers/staging/panel/panel.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/staging/panel/panel.c	2017-12-20 04:05:01.000000000 -0500
@@ -825,8 +825,7 @@ static void lcd_write_cmd_s(int cmd)
 	lcd_send_serial(0x1F);	/* R/W=W, RS=0 */
 	lcd_send_serial(cmd & 0x0F);
 	lcd_send_serial((cmd >> 4) & 0x0F);
-	/* the shortest command takes at least 40 us */
-	usleep_range(40, 100);
+	udelay(40);		/* the shortest command takes at least 40 us */
 	spin_unlock_irq(&pprt_lock);
 }
 
@@ -837,8 +836,7 @@ static void lcd_write_data_s(int data)
 	lcd_send_serial(0x5F);	/* R/W=W, RS=1 */
 	lcd_send_serial(data & 0x0F);
 	lcd_send_serial((data >> 4) & 0x0F);
-	/* the shortest data takes at least 40 us */
-	usleep_range(40, 100);
+	udelay(40);		/* the shortest data takes at least 40 us */
 	spin_unlock_irq(&pprt_lock);
 }
 
@@ -848,20 +846,19 @@ static void lcd_write_cmd_p8(int cmd)
 	spin_lock_irq(&pprt_lock);
 	/* present the data to the data port */
 	w_dtr(pprt, cmd);
-	/* maintain the data during 20 us before the strobe */
-	usleep_range(20, 100);
+	udelay(20);	/* maintain the data during 20 us before the strobe */
 
 	bits.e = BIT_SET;
 	bits.rs = BIT_CLR;
 	bits.rw = BIT_CLR;
 	set_ctrl_bits();
 
-	usleep_range(40, 100);	/* maintain the strobe during 40 us */
+	udelay(40);	/* maintain the strobe during 40 us */
 
 	bits.e = BIT_CLR;
 	set_ctrl_bits();
 
-	usleep_range(120, 500);	/* the shortest command takes at least 120 us */
+	udelay(120);	/* the shortest command takes at least 120 us */
 	spin_unlock_irq(&pprt_lock);
 }
 
@@ -871,20 +868,19 @@ static void lcd_write_data_p8(int data)
 	spin_lock_irq(&pprt_lock);
 	/* present the data to the data port */
 	w_dtr(pprt, data);
-	/* maintain the data during 20 us before the strobe */
-	usleep_range(20, 100);
+	udelay(20);	/* maintain the data during 20 us before the strobe */
 
 	bits.e = BIT_SET;
 	bits.rs = BIT_SET;
 	bits.rw = BIT_CLR;
 	set_ctrl_bits();
 
-	usleep_range(40, 100);	/* maintain the strobe during 40 us */
+	udelay(40);	/* maintain the strobe during 40 us */
 
 	bits.e = BIT_CLR;
 	set_ctrl_bits();
 
-	usleep_range(45, 100);	/* the shortest data takes at least 45 us */
+	udelay(45);	/* the shortest data takes at least 45 us */
 	spin_unlock_irq(&pprt_lock);
 }
 
@@ -894,7 +890,7 @@ static void lcd_write_cmd_tilcd(int cmd)
 	spin_lock_irq(&pprt_lock);
 	/* present the data to the control port */
 	w_ctr(pprt, cmd);
-	usleep_range(60, 120);
+	udelay(60);
 	spin_unlock_irq(&pprt_lock);
 }
 
@@ -904,7 +900,7 @@ static void lcd_write_data_tilcd(int dat
 	spin_lock_irq(&pprt_lock);
 	/* present the data to the data port */
 	w_dtr(pprt, data);
-	usleep_range(60, 120);
+	udelay(60);
 	spin_unlock_irq(&pprt_lock);
 }
 
@@ -947,7 +943,7 @@ static void lcd_clear_fast_s(void)
 		lcd_send_serial(0x5F);	/* R/W=W, RS=1 */
 		lcd_send_serial(' ' & 0x0F);
 		lcd_send_serial((' ' >> 4) & 0x0F);
-		usleep_range(40, 100);	/* the shortest data takes at least 40 us */
+		udelay(40);	/* the shortest data takes at least 40 us */
 	}
 	spin_unlock_irq(&pprt_lock);
 
@@ -971,7 +967,7 @@ static void lcd_clear_fast_p8(void)
 		w_dtr(pprt, ' ');
 
 		/* maintain the data during 20 us before the strobe */
-		usleep_range(20, 100);
+		udelay(20);
 
 		bits.e = BIT_SET;
 		bits.rs = BIT_SET;
@@ -979,13 +975,13 @@ static void lcd_clear_fast_p8(void)
 		set_ctrl_bits();
 
 		/* maintain the strobe during 40 us */
-		usleep_range(40, 100);
+		udelay(40);
 
 		bits.e = BIT_CLR;
 		set_ctrl_bits();
 
 		/* the shortest data takes at least 45 us */
-		usleep_range(45, 100);
+		udelay(45);
 	}
 	spin_unlock_irq(&pprt_lock);
 
@@ -1007,7 +1003,7 @@ static void lcd_clear_fast_tilcd(void)
 	for (pos = 0; pos < lcd.height * lcd.hwidth; pos++) {
 		/* present the data to the data port */
 		w_dtr(pprt, ' ');
-		usleep_range(60, 120);
+		udelay(60);
 	}
 
 	spin_unlock_irq(&pprt_lock);
@@ -1435,17 +1431,25 @@ static ssize_t lcd_write(struct file *fi
 
 static int lcd_open(struct inode *inode, struct file *file)
 {
+	int ret;
+
+	ret = -EBUSY;
 	if (!atomic_dec_and_test(&lcd_available))
-		return -EBUSY;	/* open only once at a time */
+		goto fail; /* open only once at a time */
 
+	ret = -EPERM;
 	if (file->f_mode & FMODE_READ)	/* device is write-only */
-		return -EPERM;
+		goto fail;
 
 	if (lcd.must_clear) {
 		lcd_clear_display();
 		lcd.must_clear = false;
 	}
 	return nonseekable_open(inode, file);
+
+ fail:
+	atomic_inc(&lcd_available);
+	return ret;
 }
 
 static int lcd_release(struct inode *inode, struct file *file)
@@ -1708,14 +1712,21 @@ static ssize_t keypad_read(struct file *
 
 static int keypad_open(struct inode *inode, struct file *file)
 {
+	int ret;
+
+	ret = -EBUSY;
 	if (!atomic_dec_and_test(&keypad_available))
-		return -EBUSY;	/* open only once at a time */
+		goto fail;	/* open only once at a time */
 
+	ret = -EPERM;
 	if (file->f_mode & FMODE_WRITE)	/* device is read-only */
-		return -EPERM;
+		goto fail;
 
 	keypad_buflen = 0;	/* flush the buffer on opening */
 	return 0;
+ fail:
+	atomic_inc(&keypad_available);
+	return ret;
 }
 
 static int keypad_release(struct inode *inode, struct file *file)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/staging/rdma/ehca/ehca_mrmw.c linux-libre-4.4.107-gnu/drivers/staging/rdma/ehca/ehca_mrmw.c
--- linux-libre-4.4-gnu/drivers/staging/rdma/ehca/ehca_mrmw.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/staging/rdma/ehca/ehca_mrmw.c	2017-12-20 04:05:01.000000000 -0500
@@ -1921,7 +1921,7 @@ static int ehca_set_pagebuf_user2(struct
 				  u64 *kpage)
 {
 	int ret = 0;
-	u64 pgaddr, prev_pgaddr;
+	u64 pgaddr, prev_pgaddr = 0;
 	u32 j = 0;
 	int kpages_per_hwpage = pginfo->hwpage_size / PAGE_SIZE;
 	int nr_kpages = kpages_per_hwpage;
@@ -2417,6 +2417,7 @@ static int ehca_reg_bmap_mr_rpages(struc
 		ehca_err(&shca->ib_device, "kpage alloc failed");
 		return -ENOMEM;
 	}
+	hret = H_SUCCESS;
 	for (top = 0; top < EHCA_MAP_ENTRIES; top++) {
 		if (!ehca_bmap_valid(ehca_bmap->top[top]))
 			continue;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/staging/rdma/hfi1/file_ops.c linux-libre-4.4.107-gnu/drivers/staging/rdma/hfi1/file_ops.c
--- linux-libre-4.4-gnu/drivers/staging/rdma/hfi1/file_ops.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/staging/rdma/hfi1/file_ops.c	2017-12-20 04:05:01.000000000 -0500
@@ -62,6 +62,8 @@
 #include <linux/cred.h>
 #include <linux/uio.h>
 
+#include <rdma/ib.h>
+
 #include "hfi.h"
 #include "pio.h"
 #include "device.h"
@@ -214,6 +216,10 @@ static ssize_t hfi1_file_write(struct fi
 	int uctxt_required = 1;
 	int must_be_root = 0;
 
+	/* FIXME: This interface cannot continue out of staging */
+	if (WARN_ON_ONCE(!ib_safe_file_access(fp)))
+		return -EACCES;
+
 	if (count < sizeof(cmd)) {
 		ret = -EINVAL;
 		goto bail;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/staging/rdma/hfi1/TODO linux-libre-4.4.107-gnu/drivers/staging/rdma/hfi1/TODO
--- linux-libre-4.4-gnu/drivers/staging/rdma/hfi1/TODO	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/staging/rdma/hfi1/TODO	2017-12-20 04:05:01.000000000 -0500
@@ -3,4 +3,4 @@ July, 2015
 - Remove unneeded file entries in sysfs
 - Remove software processing of IB protocol and place in library for use
   by qib, ipath (if still present), hfi1, and eventually soft-roce
-
+- Replace incorrect uAPI
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/staging/rdma/ipath/ipath_file_ops.c linux-libre-4.4.107-gnu/drivers/staging/rdma/ipath/ipath_file_ops.c
--- linux-libre-4.4-gnu/drivers/staging/rdma/ipath/ipath_file_ops.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/staging/rdma/ipath/ipath_file_ops.c	2017-12-20 04:05:01.000000000 -0500
@@ -45,6 +45,8 @@
 #include <linux/uio.h>
 #include <asm/pgtable.h>
 
+#include <rdma/ib.h>
+
 #include "ipath_kernel.h"
 #include "ipath_common.h"
 #include "ipath_user_sdma.h"
@@ -2243,6 +2245,9 @@ static ssize_t ipath_write(struct file *
 	ssize_t ret = 0;
 	void *dest;
 
+	if (WARN_ON_ONCE(!ib_safe_file_access(fp)))
+		return -EACCES;
+
 	if (count < sizeof(cmd.type)) {
 		ret = -EINVAL;
 		goto bail;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/staging/rtl8188eu/core/rtw_ap.c linux-libre-4.4.107-gnu/drivers/staging/rtl8188eu/core/rtw_ap.c
--- linux-libre-4.4-gnu/drivers/staging/rtl8188eu/core/rtw_ap.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/staging/rtl8188eu/core/rtw_ap.c	2017-12-20 04:05:01.000000000 -0500
@@ -894,7 +894,7 @@ int rtw_check_beacon_data(struct adapter
 		return _FAIL;
 
 
-	if (len > MAX_IE_SZ)
+	if (len < 0 || len > MAX_IE_SZ)
 		return _FAIL;
 
 	pbss_network->IELength = len;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/staging/rtl8188eu/core/rtw_cmd.c linux-libre-4.4.107-gnu/drivers/staging/rtl8188eu/core/rtw_cmd.c
--- linux-libre-4.4-gnu/drivers/staging/rtl8188eu/core/rtw_cmd.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/staging/rtl8188eu/core/rtw_cmd.c	2017-12-20 04:05:01.000000000 -0500
@@ -718,13 +718,13 @@ u8 rtw_addbareq_cmd(struct adapter *pada
 	u8	res = _SUCCESS;
 
 
-	ph2c = kzalloc(sizeof(struct cmd_obj), GFP_KERNEL);
+	ph2c = kzalloc(sizeof(struct cmd_obj), GFP_ATOMIC);
 	if (ph2c == NULL) {
 		res = _FAIL;
 		goto exit;
 	}
 
-	paddbareq_parm = kzalloc(sizeof(struct addBaReq_parm), GFP_KERNEL);
+	paddbareq_parm = kzalloc(sizeof(struct addBaReq_parm), GFP_ATOMIC);
 	if (paddbareq_parm == NULL) {
 		kfree(ph2c);
 		res = _FAIL;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/staging/rtl8188eu/core/rtw_recv.c linux-libre-4.4.107-gnu/drivers/staging/rtl8188eu/core/rtw_recv.c
--- linux-libre-4.4-gnu/drivers/staging/rtl8188eu/core/rtw_recv.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/staging/rtl8188eu/core/rtw_recv.c	2017-12-20 04:05:01.000000000 -0500
@@ -1405,6 +1405,9 @@ static int wlanhdr_to_ethhdr(struct recv
 		ptr = recvframe_pull(precvframe, (rmv_len-sizeof(struct ethhdr) + (bsnaphdr ? 2 : 0)));
 	}
 
+	if (!ptr)
+		return _FAIL;
+
 	memcpy(ptr, pattrib->dst, ETH_ALEN);
 	memcpy(ptr+ETH_ALEN, pattrib->src, ETH_ALEN);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/staging/rtl8188eu/include/rtw_debug.h linux-libre-4.4.107-gnu/drivers/staging/rtl8188eu/include/rtw_debug.h
--- linux-libre-4.4-gnu/drivers/staging/rtl8188eu/include/rtw_debug.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/staging/rtl8188eu/include/rtw_debug.h	2017-12-20 04:05:01.000000000 -0500
@@ -75,7 +75,7 @@ extern u32 GlobalDebugLevel;
 #define DBG_88E_LEVEL(_level, fmt, arg...)				\
 	do {								\
 		if (_level <= GlobalDebugLevel)				\
-			pr_info(DRIVER_PREFIX"ERROR " fmt, ##arg);	\
+			pr_info(DRIVER_PREFIX fmt, ##arg);	\
 	} while (0)
 
 #define DBG_88E(...)							\
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/staging/rtl8188eu/os_dep/usb_intf.c linux-libre-4.4.107-gnu/drivers/staging/rtl8188eu/os_dep/usb_intf.c
--- linux-libre-4.4-gnu/drivers/staging/rtl8188eu/os_dep/usb_intf.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/staging/rtl8188eu/os_dep/usb_intf.c	2017-12-20 04:05:01.000000000 -0500
@@ -47,7 +47,9 @@ static struct usb_device_id rtw_usb_id_t
 	{USB_DEVICE(0x2001, 0x330F)}, /* DLink DWA-125 REV D1 */
 	{USB_DEVICE(0x2001, 0x3310)}, /* Dlink DWA-123 REV D1 */
 	{USB_DEVICE(0x2001, 0x3311)}, /* DLink GO-USB-N150 REV B1 */
+	{USB_DEVICE(0x2357, 0x010c)}, /* TP-Link TL-WN722N v2 */
 	{USB_DEVICE(0x0df6, 0x0076)}, /* Sitecom N150 v2 */
+	{USB_DEVICE(USB_VENDER_ID_REALTEK, 0xffef)}, /* Rosewill RNX-N150NUB */
 	{}	/* Terminating entry */
 };
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/staging/rtl8192e/rtl8192e/r8192E_dev.c linux-libre-4.4.107-gnu/drivers/staging/rtl8192e/rtl8192e/r8192E_dev.c
--- linux-libre-4.4-gnu/drivers/staging/rtl8192e/rtl8192e/r8192E_dev.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/staging/rtl8192e/rtl8192e/r8192E_dev.c	2017-12-20 04:05:01.000000000 -0500
@@ -97,8 +97,9 @@ void rtl92e_set_reg(struct net_device *d
 
 	switch (variable) {
 	case HW_VAR_BSSID:
-		rtl92e_writel(dev, BSSIDR, ((u32 *)(val))[0]);
-		rtl92e_writew(dev, BSSIDR+2, ((u16 *)(val+2))[0]);
+		/* BSSIDR 2 byte alignment */
+		rtl92e_writew(dev, BSSIDR, *(u16 *)val);
+		rtl92e_writel(dev, BSSIDR + 2, *(u32 *)(val + 2));
 		break;
 
 	case HW_VAR_MEDIA_STATUS:
@@ -626,7 +627,7 @@ void rtl92e_get_eeprom_size(struct net_d
 	struct r8192_priv *priv = rtllib_priv(dev);
 
 	RT_TRACE(COMP_INIT, "===========>%s()\n", __func__);
-	curCR = rtl92e_readl(dev, EPROM_CMD);
+	curCR = rtl92e_readw(dev, EPROM_CMD);
 	RT_TRACE(COMP_INIT, "read from Reg Cmd9346CR(%x):%x\n", EPROM_CMD,
 		 curCR);
 	priv->epromtype = (curCR & EPROM_CMD_9356SEL) ? EEPROM_93C56 :
@@ -963,8 +964,8 @@ static void _rtl92e_net_update(struct ne
 	rtl92e_config_rate(dev, &rate_config);
 	priv->dot11CurrentPreambleMode = PREAMBLE_AUTO;
 	 priv->basic_rate = rate_config &= 0x15f;
-	rtl92e_writel(dev, BSSIDR, ((u32 *)net->bssid)[0]);
-	rtl92e_writew(dev, BSSIDR+4, ((u16 *)net->bssid)[2]);
+	rtl92e_writew(dev, BSSIDR, *(u16 *)net->bssid);
+	rtl92e_writel(dev, BSSIDR + 2, *(u32 *)(net->bssid + 2));
 
 	if (priv->rtllib->iw_mode == IW_MODE_ADHOC) {
 		rtl92e_writew(dev, ATIMWND, 2);
@@ -1184,8 +1185,7 @@ void  rtl92e_fill_tx_desc(struct net_dev
 			  struct cb_desc *cb_desc, struct sk_buff *skb)
 {
 	struct r8192_priv *priv = rtllib_priv(dev);
-	dma_addr_t mapping = pci_map_single(priv->pdev, skb->data, skb->len,
-			 PCI_DMA_TODEVICE);
+	dma_addr_t mapping;
 	struct tx_fwinfo_8190pci *pTxFwInfo = NULL;
 
 	pTxFwInfo = (struct tx_fwinfo_8190pci *)skb->data;
@@ -1196,8 +1196,6 @@ void  rtl92e_fill_tx_desc(struct net_dev
 	pTxFwInfo->Short = _rtl92e_query_is_short(pTxFwInfo->TxHT,
 						  pTxFwInfo->TxRate, cb_desc);
 
-	if (pci_dma_mapping_error(priv->pdev, mapping))
-		netdev_err(dev, "%s(): DMA Mapping error\n", __func__);
 	if (cb_desc->bAMPDUEnable) {
 		pTxFwInfo->AllowAggregation = 1;
 		pTxFwInfo->RxMF = cb_desc->ampdu_factor;
@@ -1232,6 +1230,14 @@ void  rtl92e_fill_tx_desc(struct net_dev
 	}
 
 	memset((u8 *)pdesc, 0, 12);
+
+	mapping = pci_map_single(priv->pdev, skb->data, skb->len,
+				 PCI_DMA_TODEVICE);
+	if (pci_dma_mapping_error(priv->pdev, mapping)) {
+		netdev_err(dev, "%s(): DMA Mapping error\n", __func__);
+		return;
+	}
+
 	pdesc->LINIP = 0;
 	pdesc->CmdInit = 1;
 	pdesc->Offset = sizeof(struct tx_fwinfo_8190pci) + 8;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/staging/rtl8712/ieee80211.h linux-libre-4.4.107-gnu/drivers/staging/rtl8712/ieee80211.h
--- linux-libre-4.4-gnu/drivers/staging/rtl8712/ieee80211.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/staging/rtl8712/ieee80211.h	2017-12-20 04:05:01.000000000 -0500
@@ -143,52 +143,52 @@ struct ieee_ibss_seq {
 };
 
 struct ieee80211_hdr {
-	u16 frame_ctl;
-	u16 duration_id;
+	__le16 frame_ctl;
+	__le16 duration_id;
 	u8 addr1[ETH_ALEN];
 	u8 addr2[ETH_ALEN];
 	u8 addr3[ETH_ALEN];
-	u16 seq_ctl;
+	__le16 seq_ctl;
 	u8 addr4[ETH_ALEN];
-} __packed;
+}  __packed __aligned(2);
 
 struct ieee80211_hdr_3addr {
-	u16 frame_ctl;
-	u16 duration_id;
+	__le16 frame_ctl;
+	__le16 duration_id;
 	u8 addr1[ETH_ALEN];
 	u8 addr2[ETH_ALEN];
 	u8 addr3[ETH_ALEN];
-	u16 seq_ctl;
-} __packed;
+	__le16 seq_ctl;
+}  __packed __aligned(2);
 
 
 struct	ieee80211_hdr_qos {
-	u16 frame_ctl;
-	u16 duration_id;
+	__le16 frame_ctl;
+	__le16 duration_id;
 	u8 addr1[ETH_ALEN];
 	u8 addr2[ETH_ALEN];
 	u8 addr3[ETH_ALEN];
-	u16 seq_ctl;
+	__le16 seq_ctl;
 	u8 addr4[ETH_ALEN];
-	u16	qc;
-}  __packed;
+	__le16	qc;
+}   __packed __aligned(2);
 
 struct  ieee80211_hdr_3addr_qos {
-	u16 frame_ctl;
-	u16 duration_id;
+	__le16 frame_ctl;
+	__le16 duration_id;
 	u8  addr1[ETH_ALEN];
 	u8  addr2[ETH_ALEN];
 	u8  addr3[ETH_ALEN];
-	u16 seq_ctl;
-	u16 qc;
+	__le16 seq_ctl;
+	__le16 qc;
 }  __packed;
 
 struct eapol {
 	u8 snap[6];
-	u16 ethertype;
+	__be16 ethertype;
 	u8 version;
 	u8 type;
-	u16 length;
+	__le16 length;
 } __packed;
 
 
@@ -528,13 +528,13 @@ struct ieee80211_security {
  */
 
 struct ieee80211_header_data {
-	u16 frame_ctl;
-	u16 duration_id;
+	__le16 frame_ctl;
+	__le16 duration_id;
 	u8 addr1[6];
 	u8 addr2[6];
 	u8 addr3[6];
-	u16 seq_ctrl;
-};
+	__le16 seq_ctrl;
+} __packed __aligned(2);
 
 #define BEACON_PROBE_SSID_ID_POSITION 12
 
@@ -566,18 +566,18 @@ struct ieee80211_info_element {
 /*
  * These are the data types that can make up management packets
  *
-	u16 auth_algorithm;
-	u16 auth_sequence;
-	u16 beacon_interval;
-	u16 capability;
+	__le16 auth_algorithm;
+	__le16 auth_sequence;
+	__le16 beacon_interval;
+	__le16 capability;
 	u8 current_ap[ETH_ALEN];
-	u16 listen_interval;
+	__le16 listen_interval;
 	struct {
 		u16 association_id:14, reserved:2;
 	} __packed;
-	u32 time_stamp[2];
-	u16 reason;
-	u16 status;
+	__le32 time_stamp[2];
+	__le16 reason;
+	__le16 status;
 */
 
 #define IEEE80211_DEFAULT_TX_ESSID "Penguin"
@@ -585,16 +585,16 @@ struct ieee80211_info_element {
 
 struct ieee80211_authentication {
 	struct ieee80211_header_data header;
-	u16 algorithm;
-	u16 transaction;
-	u16 status;
+	__le16 algorithm;
+	__le16 transaction;
+	__le16 status;
 } __packed;
 
 struct ieee80211_probe_response {
 	struct ieee80211_header_data header;
-	u32 time_stamp[2];
-	u16 beacon_interval;
-	u16 capability;
+	__le32 time_stamp[2];
+	__le16 beacon_interval;
+	__le16 capability;
 	struct ieee80211_info_element info_element;
 } __packed;
 
@@ -604,16 +604,16 @@ struct ieee80211_probe_request {
 
 struct ieee80211_assoc_request_frame {
 	struct ieee80211_hdr_3addr header;
-	u16 capability;
-	u16 listen_interval;
+	__le16 capability;
+	__le16 listen_interval;
 	struct ieee80211_info_element_hdr info_element;
 } __packed;
 
 struct ieee80211_assoc_response_frame {
 	struct ieee80211_hdr_3addr header;
-	u16 capability;
-	u16 status;
-	u16 aid;
+	__le16 capability;
+	__le16 status;
+	__le16 aid;
 } __packed;
 
 struct ieee80211_txb {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/staging/rtl8712/rtl871x_ioctl_linux.c linux-libre-4.4.107-gnu/drivers/staging/rtl8712/rtl871x_ioctl_linux.c
--- linux-libre-4.4-gnu/drivers/staging/rtl8712/rtl871x_ioctl_linux.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/staging/rtl8712/rtl871x_ioctl_linux.c	2017-12-20 04:05:01.000000000 -0500
@@ -199,7 +199,7 @@ static inline char *translate_scan(struc
 	iwe.cmd = SIOCGIWMODE;
 	memcpy((u8 *)&cap, r8712_get_capability_from_ie(pnetwork->network.IEs),
 		2);
-	cap = le16_to_cpu(cap);
+	le16_to_cpus(&cap);
 	if (cap & (WLAN_CAPABILITY_IBSS | WLAN_CAPABILITY_BSS)) {
 		if (cap & WLAN_CAPABILITY_BSS)
 			iwe.u.mode = (u32)IW_MODE_MASTER;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/staging/rtl8712/rtl871x_recv.c linux-libre-4.4.107-gnu/drivers/staging/rtl8712/rtl871x_recv.c
--- linux-libre-4.4-gnu/drivers/staging/rtl8712/rtl871x_recv.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/staging/rtl8712/rtl871x_recv.c	2017-12-20 04:05:01.000000000 -0500
@@ -641,11 +641,16 @@ sint r8712_wlanhdr_to_ethhdr(union recv_
 		/* append rx status for mp test packets */
 		ptr = recvframe_pull(precvframe, (rmv_len -
 		      sizeof(struct ethhdr) + 2) - 24);
+		if (!ptr)
+			return _FAIL;
 		memcpy(ptr, get_rxmem(precvframe), 24);
 		ptr += 24;
-	} else
+	} else {
 		ptr = recvframe_pull(precvframe, (rmv_len -
 		      sizeof(struct ethhdr) + (bsnaphdr ? 2 : 0)));
+		if (!ptr)
+			return _FAIL;
+	}
 
 	memcpy(ptr, pattrib->dst, ETH_ALEN);
 	memcpy(ptr + ETH_ALEN, pattrib->src, ETH_ALEN);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/staging/rtl8712/rtl871x_xmit.c linux-libre-4.4.107-gnu/drivers/staging/rtl8712/rtl871x_xmit.c
--- linux-libre-4.4-gnu/drivers/staging/rtl8712/rtl871x_xmit.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/staging/rtl8712/rtl871x_xmit.c	2017-12-20 04:05:01.000000000 -0500
@@ -339,7 +339,8 @@ sint r8712_update_attrib(struct _adapter
 	/* if in MP_STATE, update pkt_attrib from mp_txcmd, and overwrite
 	 * some settings above.*/
 	if (check_fwstate(pmlmepriv, WIFI_MP_STATE))
-		pattrib->priority = (txdesc.txdw1 >> QSEL_SHT) & 0x1f;
+		pattrib->priority =
+		    (le32_to_cpu(txdesc.txdw1) >> QSEL_SHT) & 0x1f;
 	return _SUCCESS;
 }
 
@@ -479,7 +480,7 @@ static sint make_wlanhdr(struct _adapter
 	struct ieee80211_hdr *pwlanhdr = (struct ieee80211_hdr *)hdr;
 	struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
 	struct qos_priv *pqospriv = &pmlmepriv->qospriv;
-	u16 *fctrl = &pwlanhdr->frame_ctl;
+	__le16 *fctrl = &pwlanhdr->frame_ctl;
 
 	memset(hdr, 0, WLANHDR_OFFSET);
 	SetFrameSubType(fctrl, pattrib->subtype);
@@ -568,7 +569,7 @@ static sint r8712_put_snap(u8 *data, u16
 	snap->oui[0] = oui[0];
 	snap->oui[1] = oui[1];
 	snap->oui[2] = oui[2];
-	*(u16 *)(data + SNAP_SIZE) = htons(h_proto);
+	*(__be16 *)(data + SNAP_SIZE) = htons(h_proto);
 	return SNAP_SIZE + sizeof(u16);
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/staging/rts5208/rtsx_scsi.c linux-libre-4.4.107-gnu/drivers/staging/rts5208/rtsx_scsi.c
--- linux-libre-4.4-gnu/drivers/staging/rts5208/rtsx_scsi.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/staging/rts5208/rtsx_scsi.c	2017-12-20 04:05:01.000000000 -0500
@@ -414,7 +414,7 @@ void set_sense_data(struct rtsx_chip *ch
 	sense->ascq = ascq;
 	if (sns_key_info0 != 0) {
 		sense->sns_key_info[0] = SKSV | sns_key_info0;
-		sense->sns_key_info[1] = (sns_key_info1 & 0xf0) >> 8;
+		sense->sns_key_info[1] = (sns_key_info1 & 0xf0) >> 4;
 		sense->sns_key_info[2] = sns_key_info1 & 0x0f;
 	}
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/staging/speakup/selection.c linux-libre-4.4.107-gnu/drivers/staging/speakup/selection.c
--- linux-libre-4.4-gnu/drivers/staging/speakup/selection.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/staging/speakup/selection.c	2017-12-20 04:05:01.000000000 -0500
@@ -142,7 +142,9 @@ static void __speakup_paste_selection(st
 	struct tty_ldisc *ld;
 	DECLARE_WAITQUEUE(wait, current);
 
-	ld = tty_ldisc_ref_wait(tty);
+	ld = tty_ldisc_ref(tty);
+	if (!ld)
+		goto tty_unref;
 	tty_buffer_lock_exclusive(&vc->port);
 
 	add_wait_queue(&vc->paste_wait, &wait);
@@ -162,6 +164,7 @@ static void __speakup_paste_selection(st
 
 	tty_buffer_unlock_exclusive(&vc->port);
 	tty_ldisc_deref(ld);
+tty_unref:
 	tty_kref_put(tty);
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/staging/speakup/serialio.c linux-libre-4.4.107-gnu/drivers/staging/speakup/serialio.c
--- linux-libre-4.4-gnu/drivers/staging/speakup/serialio.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/staging/speakup/serialio.c	2017-12-20 04:05:01.000000000 -0500
@@ -6,6 +6,11 @@
 #include "spk_priv.h"
 #include "serialio.h"
 
+#include <linux/serial_core.h>
+/* WARNING:  Do not change this to <linux/serial.h> without testing that
+ * SERIAL_PORT_DFNS does get defined to the appropriate value. */
+#include <asm/serial.h>
+
 #ifndef SERIAL_PORT_DFNS
 #define SERIAL_PORT_DFNS
 #endif
@@ -23,9 +28,15 @@ const struct old_serial_port *spk_serial
 	int baud = 9600, quot = 0;
 	unsigned int cval = 0;
 	int cflag = CREAD | HUPCL | CLOCAL | B9600 | CS8;
-	const struct old_serial_port *ser = rs_table + index;
+	const struct old_serial_port *ser;
 	int err;
 
+	if (index >= ARRAY_SIZE(rs_table)) {
+		pr_info("no port info for ttyS%d\n", index);
+		return NULL;
+	}
+	ser = rs_table + index;
+
 	/*	Divisor, bytesize and parity */
 	quot = ser->baud_base / baud;
 	cval = cflag & (CSIZE | CSTOPB);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/staging/vt6655/device_main.c linux-libre-4.4.107-gnu/drivers/staging/vt6655/device_main.c
--- linux-libre-4.4-gnu/drivers/staging/vt6655/device_main.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/staging/vt6655/device_main.c	2017-12-20 04:05:01.000000000 -0500
@@ -1693,10 +1693,11 @@ static int vt6655_suspend(struct pci_dev
 	MACbShutdown(priv->PortOffset);
 
 	pci_disable_device(pcid);
-	pci_set_power_state(pcid, pci_choose_state(pcid, state));
 
 	spin_unlock_irqrestore(&priv->lock, flags);
 
+	pci_set_power_state(pcid, pci_choose_state(pcid, state));
+
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/staging/vt6656/main_usb.c linux-libre-4.4.107-gnu/drivers/staging/vt6656/main_usb.c
--- linux-libre-4.4-gnu/drivers/staging/vt6656/main_usb.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/staging/vt6656/main_usb.c	2017-12-20 04:05:01.000000000 -0500
@@ -529,6 +529,9 @@ static int vnt_start(struct ieee80211_hw
 		goto free_all;
 	}
 
+	if (vnt_key_init_table(priv))
+		goto free_all;
+
 	priv->int_interval = 1;  /* bInterval is set to 1 */
 
 	vnt_int_start_interrupt(priv);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/staging/vt6656/usbpipe.c linux-libre-4.4.107-gnu/drivers/staging/vt6656/usbpipe.c
--- linux-libre-4.4-gnu/drivers/staging/vt6656/usbpipe.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/staging/vt6656/usbpipe.c	2017-12-20 04:05:01.000000000 -0500
@@ -50,15 +50,25 @@ int vnt_control_out(struct vnt_private *
 		u16 index, u16 length, u8 *buffer)
 {
 	int status = 0;
+	u8 *usb_buffer;
 
 	if (test_bit(DEVICE_FLAGS_DISCONNECTED, &priv->flags))
 		return STATUS_FAILURE;
 
 	mutex_lock(&priv->usb_lock);
 
+	usb_buffer = kmemdup(buffer, length, GFP_KERNEL);
+	if (!usb_buffer) {
+		mutex_unlock(&priv->usb_lock);
+		return -ENOMEM;
+	}
+
 	status = usb_control_msg(priv->usb,
-		usb_sndctrlpipe(priv->usb, 0), request, 0x40, value,
-			index, buffer, length, USB_CTL_WAIT);
+				 usb_sndctrlpipe(priv->usb, 0),
+				 request, 0x40, value,
+				 index, usb_buffer, length, USB_CTL_WAIT);
+
+	kfree(usb_buffer);
 
 	mutex_unlock(&priv->usb_lock);
 
@@ -78,15 +88,28 @@ int vnt_control_in(struct vnt_private *p
 		u16 index, u16 length, u8 *buffer)
 {
 	int status;
+	u8 *usb_buffer;
 
 	if (test_bit(DEVICE_FLAGS_DISCONNECTED, &priv->flags))
 		return STATUS_FAILURE;
 
 	mutex_lock(&priv->usb_lock);
 
+	usb_buffer = kmalloc(length, GFP_KERNEL);
+	if (!usb_buffer) {
+		mutex_unlock(&priv->usb_lock);
+		return -ENOMEM;
+	}
+
 	status = usb_control_msg(priv->usb,
-		usb_rcvctrlpipe(priv->usb, 0), request, 0xc0, value,
-			index, buffer, length, USB_CTL_WAIT);
+				 usb_rcvctrlpipe(priv->usb, 0),
+				 request, 0xc0, value,
+				 index, usb_buffer, length, USB_CTL_WAIT);
+
+	if (status == length)
+		memcpy(buffer, usb_buffer, length);
+
+	kfree(usb_buffer);
 
 	mutex_unlock(&priv->usb_lock);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/staging/wlan-ng/p80211netdev.c linux-libre-4.4.107-gnu/drivers/staging/wlan-ng/p80211netdev.c
--- linux-libre-4.4-gnu/drivers/staging/wlan-ng/p80211netdev.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/staging/wlan-ng/p80211netdev.c	2017-12-20 04:05:01.000000000 -0500
@@ -232,7 +232,7 @@ static int p80211_convert_to_ether(wland
 	struct p80211_hdr_a3 *hdr;
 
 	hdr = (struct p80211_hdr_a3 *) skb->data;
-	if (p80211_rx_typedrop(wlandev, hdr->fc))
+	if (p80211_rx_typedrop(wlandev, le16_to_cpu(hdr->fc)))
 		return CONV_TO_ETHER_SKIPPED;
 
 	/* perform mcast filtering: allow my local address through but reject
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/target/iscsi/iscsi_target.c linux-libre-4.4.107-gnu/drivers/target/iscsi/iscsi_target.c
--- linux-libre-4.4-gnu/drivers/target/iscsi/iscsi_target.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/target/iscsi/iscsi_target.c	2017-12-20 04:05:01.000000000 -0500
@@ -418,6 +418,7 @@ int iscsit_reset_np_thread(
 		return 0;
 	}
 	np->np_thread_state = ISCSI_NP_THREAD_RESET;
+	atomic_inc(&np->np_reset_count);
 
 	if (np->np_thread) {
 		spin_unlock_bh(&np->np_thread_lock);
@@ -492,7 +493,8 @@ static void iscsit_aborted_task(struct i
 	bool scsi_cmd = (cmd->iscsi_opcode == ISCSI_OP_SCSI_CMD);
 
 	spin_lock_bh(&conn->cmd_lock);
-	if (!list_empty(&cmd->i_conn_node))
+	if (!list_empty(&cmd->i_conn_node) &&
+	    !(cmd->se_cmd.transport_state & CMD_T_FABRIC_STOP))
 		list_del_init(&cmd->i_conn_node);
 	spin_unlock_bh(&conn->cmd_lock);
 
@@ -672,6 +674,7 @@ static int iscsit_add_reject_from_cmd(
 	unsigned char *buf)
 {
 	struct iscsi_conn *conn;
+	const bool do_put = cmd->se_cmd.se_tfo != NULL;
 
 	if (!cmd->conn) {
 		pr_err("cmd->conn is NULL for ITT: 0x%08x\n",
@@ -702,7 +705,7 @@ static int iscsit_add_reject_from_cmd(
 	 * Perform the kref_put now if se_cmd has already been setup by
 	 * scsit_setup_scsi_cmd()
 	 */
-	if (cmd->se_cmd.se_tfo != NULL) {
+	if (do_put) {
 		pr_debug("iscsi reject: calling target_put_sess_cmd >>>>>>\n");
 		target_put_sess_cmd(&cmd->se_cmd);
 	}
@@ -1111,6 +1114,18 @@ iscsit_get_immediate_data(struct iscsi_c
 	 */
 	if (dump_payload)
 		goto after_immediate_data;
+	/*
+	 * Check for underflow case where both EDTL and immediate data payload
+	 * exceeds what is presented by CDB's TRANSFER LENGTH, and what has
+	 * already been set in target_cmd_size_check() as se_cmd->data_length.
+	 *
+	 * For this special case, fail the command and dump the immediate data
+	 * payload.
+	 */
+	if (cmd->first_burst_len > cmd->se_cmd.data_length) {
+		cmd->sense_reason = TCM_INVALID_CDB_FIELD;
+		goto after_immediate_data;
+	}
 
 	immed_ret = iscsit_handle_immediate_data(cmd, hdr,
 					cmd->first_burst_len);
@@ -1745,7 +1760,7 @@ iscsit_handle_task_mgt_cmd(struct iscsi_
 	struct iscsi_tm *hdr;
 	int out_of_order_cmdsn = 0, ret;
 	bool sess_ref = false;
-	u8 function;
+	u8 function, tcm_function = TMR_UNKNOWN;
 
 	hdr			= (struct iscsi_tm *) buf;
 	hdr->flags &= ~ISCSI_FLAG_CMD_FINAL;
@@ -1791,10 +1806,6 @@ iscsit_handle_task_mgt_cmd(struct iscsi_
 	 * LIO-Target $FABRIC_MOD
 	 */
 	if (function != ISCSI_TM_FUNC_TASK_REASSIGN) {
-
-		u8 tcm_function;
-		int ret;
-
 		transport_init_se_cmd(&cmd->se_cmd, &iscsi_ops,
 				      conn->sess->se_sess, 0, DMA_NONE,
 				      TCM_SIMPLE_TAG, cmd->sense_buffer + 2);
@@ -1830,15 +1841,14 @@ iscsit_handle_task_mgt_cmd(struct iscsi_
 			return iscsit_add_reject_cmd(cmd,
 				ISCSI_REASON_BOOKMARK_NO_RESOURCES, buf);
 		}
-
-		ret = core_tmr_alloc_req(&cmd->se_cmd, cmd->tmr_req,
-					 tcm_function, GFP_KERNEL);
-		if (ret < 0)
-			return iscsit_add_reject_cmd(cmd,
+	}
+	ret = core_tmr_alloc_req(&cmd->se_cmd, cmd->tmr_req, tcm_function,
+				 GFP_KERNEL);
+	if (ret < 0)
+		return iscsit_add_reject_cmd(cmd,
 				ISCSI_REASON_BOOKMARK_NO_RESOURCES, buf);
 
-		cmd->tmr_req->se_tmr_req = cmd->se_cmd.se_tmr_req;
-	}
+	cmd->tmr_req->se_tmr_req = cmd->se_cmd.se_tmr_req;
 
 	cmd->iscsi_opcode	= ISCSI_OP_SCSI_TMFUNC;
 	cmd->i_state		= ISTATE_SEND_TASKMGTRSP;
@@ -1914,12 +1924,14 @@ attach:
 
 	if (!(hdr->opcode & ISCSI_OP_IMMEDIATE)) {
 		int cmdsn_ret = iscsit_sequence_cmd(conn, cmd, buf, hdr->cmdsn);
-		if (cmdsn_ret == CMDSN_HIGHER_THAN_EXP)
+		if (cmdsn_ret == CMDSN_HIGHER_THAN_EXP) {
 			out_of_order_cmdsn = 1;
-		else if (cmdsn_ret == CMDSN_LOWER_THAN_EXP)
+		} else if (cmdsn_ret == CMDSN_LOWER_THAN_EXP) {
+			target_put_sess_cmd(&cmd->se_cmd);
 			return 0;
-		else if (cmdsn_ret == CMDSN_ERROR_CANNOT_RECOVER)
+		} else if (cmdsn_ret == CMDSN_ERROR_CANNOT_RECOVER) {
 			return -1;
+		}
 	}
 	iscsit_ack_from_expstatsn(conn, be32_to_cpu(hdr->exp_statsn));
 
@@ -1983,6 +1995,7 @@ iscsit_setup_text_cmd(struct iscsi_conn
 	cmd->cmd_sn		= be32_to_cpu(hdr->cmdsn);
 	cmd->exp_stat_sn	= be32_to_cpu(hdr->exp_statsn);
 	cmd->data_direction	= DMA_NONE;
+	kfree(cmd->text_in_ptr);
 	cmd->text_in_ptr	= NULL;
 
 	return 0;
@@ -3435,7 +3448,7 @@ iscsit_build_sendtargets_response(struct
 
 			if ((tpg->tpg_attrib.generate_node_acls == 0) &&
 			    (tpg->tpg_attrib.demo_mode_discovery == 0) &&
-			    (!core_tpg_get_initiator_node_acl(&tpg->tpg_se_tpg,
+			    (!target_tpg_has_node_acl(&tpg->tpg_se_tpg,
 				cmd->conn->sess->sess_ops->InitiatorName))) {
 				continue;
 			}
@@ -3952,6 +3965,8 @@ int iscsi_target_tx_thread(void *arg)
 {
 	int ret = 0;
 	struct iscsi_conn *conn = arg;
+	bool conn_freed = false;
+
 	/*
 	 * Allow ourselves to be interrupted by SIGINT so that a
 	 * connection recovery / failure event can be triggered externally.
@@ -3977,12 +3992,14 @@ get_immediate:
 			goto transport_err;
 
 		ret = iscsit_handle_response_queue(conn);
-		if (ret == 1)
+		if (ret == 1) {
 			goto get_immediate;
-		else if (ret == -ECONNRESET)
+		} else if (ret == -ECONNRESET) {
+			conn_freed = true;
 			goto out;
-		else if (ret < 0)
+		} else if (ret < 0) {
 			goto transport_err;
+		}
 	}
 
 transport_err:
@@ -3992,8 +4009,13 @@ transport_err:
 	 * responsible for cleaning up the early connection failure.
 	 */
 	if (conn->conn_state != TARG_CONN_STATE_IN_LOGIN)
-		iscsit_take_action_for_connection_exit(conn);
+		iscsit_take_action_for_connection_exit(conn, &conn_freed);
 out:
+	if (!conn_freed) {
+		while (!kthread_should_stop()) {
+			msleep(100);
+		}
+	}
 	return 0;
 }
 
@@ -4092,6 +4114,7 @@ int iscsi_target_rx_thread(void *arg)
 	u32 checksum = 0, digest = 0;
 	struct iscsi_conn *conn = arg;
 	struct kvec iov;
+	bool conn_freed = false;
 	/*
 	 * Allow ourselves to be interrupted by SIGINT so that a
 	 * connection recovery / failure event can be triggered externally.
@@ -4103,7 +4126,7 @@ int iscsi_target_rx_thread(void *arg)
 	 */
 	rc = wait_for_completion_interruptible(&conn->rx_login_comp);
 	if (rc < 0 || iscsi_target_check_conn_state(conn))
-		return 0;
+		goto out;
 
 	if (conn->conn_transport->transport_type == ISCSI_INFINIBAND) {
 		struct completion comp;
@@ -4188,12 +4211,19 @@ int iscsi_target_rx_thread(void *arg)
 transport_err:
 	if (!signal_pending(current))
 		atomic_set(&conn->transport_failed, 1);
-	iscsit_take_action_for_connection_exit(conn);
+	iscsit_take_action_for_connection_exit(conn, &conn_freed);
+out:
+	if (!conn_freed) {
+		while (!kthread_should_stop()) {
+			msleep(100);
+		}
+	}
 	return 0;
 }
 
 static void iscsit_release_commands_from_conn(struct iscsi_conn *conn)
 {
+	LIST_HEAD(tmp_list);
 	struct iscsi_cmd *cmd = NULL, *cmd_tmp = NULL;
 	struct iscsi_session *sess = conn->sess;
 	/*
@@ -4202,18 +4232,26 @@ static void iscsit_release_commands_from
 	 * has been reset -> returned sleeping pre-handler state.
 	 */
 	spin_lock_bh(&conn->cmd_lock);
-	list_for_each_entry_safe(cmd, cmd_tmp, &conn->conn_cmd_list, i_conn_node) {
+	list_splice_init(&conn->conn_cmd_list, &tmp_list);
 
+	list_for_each_entry(cmd, &tmp_list, i_conn_node) {
+		struct se_cmd *se_cmd = &cmd->se_cmd;
+
+		if (se_cmd->se_tfo != NULL) {
+			spin_lock(&se_cmd->t_state_lock);
+			se_cmd->transport_state |= CMD_T_FABRIC_STOP;
+			spin_unlock(&se_cmd->t_state_lock);
+		}
+	}
+	spin_unlock_bh(&conn->cmd_lock);
+
+	list_for_each_entry_safe(cmd, cmd_tmp, &tmp_list, i_conn_node) {
 		list_del_init(&cmd->i_conn_node);
-		spin_unlock_bh(&conn->cmd_lock);
 
 		iscsit_increment_maxcmdsn(cmd, sess);
-
 		iscsit_free_cmd(cmd, true);
 
-		spin_lock_bh(&conn->cmd_lock);
 	}
-	spin_unlock_bh(&conn->cmd_lock);
 }
 
 static void iscsit_stop_timers_for_cmds(
@@ -4553,8 +4591,11 @@ static void iscsit_logout_post_handler_c
 	 * always sleep waiting for RX/TX thread shutdown to complete
 	 * within iscsit_close_connection().
 	 */
-	if (conn->conn_transport->transport_type == ISCSI_TCP)
+	if (conn->conn_transport->transport_type == ISCSI_TCP) {
 		sleep = cmpxchg(&conn->tx_thread_active, true, false);
+		if (!sleep)
+			return;
+	}
 
 	atomic_set(&conn->conn_logout_remove, 0);
 	complete(&conn->conn_logout_comp);
@@ -4570,8 +4611,11 @@ static void iscsit_logout_post_handler_s
 {
 	int sleep = 1;
 
-	if (conn->conn_transport->transport_type == ISCSI_TCP)
+	if (conn->conn_transport->transport_type == ISCSI_TCP) {
 		sleep = cmpxchg(&conn->tx_thread_active, true, false);
+		if (!sleep)
+			return;
+	}
 
 	atomic_set(&conn->conn_logout_remove, 0);
 	complete(&conn->conn_logout_comp);
@@ -4811,6 +4855,7 @@ int iscsit_release_sessions_for_tpg(stru
 			continue;
 		}
 		atomic_set(&sess->session_reinstatement, 1);
+		atomic_set(&sess->session_fall_back_to_erl0, 1);
 		spin_unlock(&sess->conn_lock);
 
 		list_move_tail(&se_sess->sess_list, &free_list);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/target/iscsi/iscsi_target_configfs.c linux-libre-4.4.107-gnu/drivers/target/iscsi/iscsi_target_configfs.c
--- linux-libre-4.4-gnu/drivers/target/iscsi/iscsi_target_configfs.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/target/iscsi/iscsi_target_configfs.c	2017-12-20 04:05:01.000000000 -0500
@@ -725,11 +725,8 @@ static ssize_t lio_target_nacl_cmdsn_dep
 
 	if (iscsit_get_tpg(tpg) < 0)
 		return -EINVAL;
-	/*
-	 * iscsit_tpg_set_initiator_node_queue_depth() assumes force=1
-	 */
-	ret = iscsit_tpg_set_initiator_node_queue_depth(tpg,
-				config_item_name(acl_ci), cmdsn_depth, 1);
+
+	ret = core_tpg_set_initiator_node_queue_depth(se_nacl, cmdsn_depth);
 
 	pr_debug("LIO_Target_ConfigFS: %s/%s Set CmdSN Window: %u for"
 		"InitiatorName: %s\n", config_item_name(wwn_ci),
@@ -871,6 +868,7 @@ DEF_TPG_ATTRIB(default_erl);
 DEF_TPG_ATTRIB(t10_pi);
 DEF_TPG_ATTRIB(fabric_prot_type);
 DEF_TPG_ATTRIB(tpg_enabled_sendtargets);
+DEF_TPG_ATTRIB(login_keys_workaround);
 
 static struct configfs_attribute *lio_target_tpg_attrib_attrs[] = {
 	&iscsi_tpg_attrib_attr_authentication,
@@ -886,6 +884,7 @@ static struct configfs_attribute *lio_ta
 	&iscsi_tpg_attrib_attr_t10_pi,
 	&iscsi_tpg_attrib_attr_fabric_prot_type,
 	&iscsi_tpg_attrib_attr_tpg_enabled_sendtargets,
+	&iscsi_tpg_attrib_attr_login_keys_workaround,
 	NULL,
 };
 
@@ -1211,7 +1210,7 @@ static struct se_portal_group *lio_targe
 
 	ret = core_tpg_register(wwn, &tpg->tpg_se_tpg, SCSI_PROTOCOL_ISCSI);
 	if (ret < 0)
-		return NULL;
+		goto free_out;
 
 	ret = iscsit_tpg_add_portal_group(tiqn, tpg);
 	if (ret != 0)
@@ -1223,6 +1222,7 @@ static struct se_portal_group *lio_targe
 	return &tpg->tpg_se_tpg;
 out:
 	core_tpg_deregister(&tpg->tpg_se_tpg);
+free_out:
 	kfree(tpg);
 	return NULL;
 }
@@ -1593,28 +1593,31 @@ static int lio_tpg_check_prot_fabric_onl
 }
 
 /*
- * Called with spin_lock_bh(struct se_portal_group->session_lock) held..
- *
- * Also, this function calls iscsit_inc_session_usage_count() on the
+ * This function calls iscsit_inc_session_usage_count() on the
  * struct iscsi_session in question.
  */
 static int lio_tpg_shutdown_session(struct se_session *se_sess)
 {
 	struct iscsi_session *sess = se_sess->fabric_sess_ptr;
+	struct se_portal_group *se_tpg = &sess->tpg->tpg_se_tpg;
 
+	spin_lock_bh(&se_tpg->session_lock);
 	spin_lock(&sess->conn_lock);
 	if (atomic_read(&sess->session_fall_back_to_erl0) ||
 	    atomic_read(&sess->session_logout) ||
 	    (sess->time2retain_timer_flags & ISCSI_TF_EXPIRED)) {
 		spin_unlock(&sess->conn_lock);
+		spin_unlock_bh(&se_tpg->session_lock);
 		return 0;
 	}
 	atomic_set(&sess->session_reinstatement, 1);
+	atomic_set(&sess->session_fall_back_to_erl0, 1);
 	spin_unlock(&sess->conn_lock);
 
 	iscsit_stop_time2retain_timer(sess);
-	iscsit_stop_session(sess, 1, 1);
+	spin_unlock_bh(&se_tpg->session_lock);
 
+	iscsit_stop_session(sess, 1, 1);
 	return 1;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/target/iscsi/iscsi_target_erl0.c linux-libre-4.4.107-gnu/drivers/target/iscsi/iscsi_target_erl0.c
--- linux-libre-4.4-gnu/drivers/target/iscsi/iscsi_target_erl0.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/target/iscsi/iscsi_target_erl0.c	2017-12-20 04:05:01.000000000 -0500
@@ -44,10 +44,8 @@ void iscsit_set_dataout_sequence_values(
 	 */
 	if (cmd->unsolicited_data) {
 		cmd->seq_start_offset = cmd->write_data_done;
-		cmd->seq_end_offset = (cmd->write_data_done +
-			((cmd->se_cmd.data_length >
-			  conn->sess->sess_ops->FirstBurstLength) ?
-			 conn->sess->sess_ops->FirstBurstLength : cmd->se_cmd.data_length));
+		cmd->seq_end_offset = min(cmd->se_cmd.data_length,
+					conn->sess->sess_ops->FirstBurstLength);
 		return;
 	}
 
@@ -930,8 +928,10 @@ static void iscsit_handle_connection_cle
 	}
 }
 
-void iscsit_take_action_for_connection_exit(struct iscsi_conn *conn)
+void iscsit_take_action_for_connection_exit(struct iscsi_conn *conn, bool *conn_freed)
 {
+	*conn_freed = false;
+
 	spin_lock_bh(&conn->state_lock);
 	if (atomic_read(&conn->connection_exit)) {
 		spin_unlock_bh(&conn->state_lock);
@@ -942,6 +942,7 @@ void iscsit_take_action_for_connection_e
 	if (conn->conn_state == TARG_CONN_STATE_IN_LOGOUT) {
 		spin_unlock_bh(&conn->state_lock);
 		iscsit_close_connection(conn);
+		*conn_freed = true;
 		return;
 	}
 
@@ -955,4 +956,5 @@ void iscsit_take_action_for_connection_e
 	spin_unlock_bh(&conn->state_lock);
 
 	iscsit_handle_connection_cleanup(conn);
+	*conn_freed = true;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/target/iscsi/iscsi_target_erl0.h linux-libre-4.4.107-gnu/drivers/target/iscsi/iscsi_target_erl0.h
--- linux-libre-4.4-gnu/drivers/target/iscsi/iscsi_target_erl0.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/target/iscsi/iscsi_target_erl0.h	2017-12-20 04:05:01.000000000 -0500
@@ -9,6 +9,6 @@ extern int iscsit_stop_time2retain_timer
 extern void iscsit_connection_reinstatement_rcfr(struct iscsi_conn *);
 extern void iscsit_cause_connection_reinstatement(struct iscsi_conn *, int);
 extern void iscsit_fall_back_to_erl0(struct iscsi_session *);
-extern void iscsit_take_action_for_connection_exit(struct iscsi_conn *);
+extern void iscsit_take_action_for_connection_exit(struct iscsi_conn *, bool *);
 
 #endif   /*** ISCSI_TARGET_ERL0_H ***/
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/target/iscsi/iscsi_target_login.c linux-libre-4.4.107-gnu/drivers/target/iscsi/iscsi_target_login.c
--- linux-libre-4.4-gnu/drivers/target/iscsi/iscsi_target_login.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/target/iscsi/iscsi_target_login.c	2017-12-20 04:05:01.000000000 -0500
@@ -195,6 +195,7 @@ int iscsi_check_for_session_reinstatemen
 			    initiatorname_param->value) &&
 		   (sess_p->sess_ops->SessionType == sessiontype))) {
 			atomic_set(&sess_p->session_reinstatement, 1);
+			atomic_set(&sess_p->session_fall_back_to_erl0, 1);
 			spin_unlock(&sess_p->conn_lock);
 			iscsit_inc_session_usage_count(sess_p);
 			iscsit_stop_time2retain_timer(sess_p);
@@ -1218,9 +1219,11 @@ static int __iscsi_target_login_thread(s
 	flush_signals(current);
 
 	spin_lock_bh(&np->np_thread_lock);
-	if (np->np_thread_state == ISCSI_NP_THREAD_RESET) {
+	if (atomic_dec_if_positive(&np->np_reset_count) >= 0) {
 		np->np_thread_state = ISCSI_NP_THREAD_ACTIVE;
+		spin_unlock_bh(&np->np_thread_lock);
 		complete(&np->np_restart_comp);
+		return 1;
 	} else if (np->np_thread_state == ISCSI_NP_THREAD_SHUTDOWN) {
 		spin_unlock_bh(&np->np_thread_lock);
 		goto exit;
@@ -1253,7 +1256,8 @@ static int __iscsi_target_login_thread(s
 		goto exit;
 	} else if (rc < 0) {
 		spin_lock_bh(&np->np_thread_lock);
-		if (np->np_thread_state == ISCSI_NP_THREAD_RESET) {
+		if (atomic_dec_if_positive(&np->np_reset_count) >= 0) {
+			np->np_thread_state = ISCSI_NP_THREAD_ACTIVE;
 			spin_unlock_bh(&np->np_thread_lock);
 			complete(&np->np_restart_comp);
 			iscsit_put_transport(conn->conn_transport);
@@ -1357,8 +1361,9 @@ static int __iscsi_target_login_thread(s
 	}
 	login->zero_tsih = zero_tsih;
 
-	conn->sess->se_sess->sup_prot_ops =
-		conn->conn_transport->iscsit_get_sup_prot_ops(conn);
+	if (conn->sess)
+		conn->sess->se_sess->sup_prot_ops =
+			conn->conn_transport->iscsit_get_sup_prot_ops(conn);
 
 	tpg = conn->tpg;
 	if (!tpg) {
@@ -1434,5 +1439,9 @@ int iscsi_target_login_thread(void *arg)
 			break;
 	}
 
+	while (!kthread_should_stop()) {
+		msleep(100);
+	}
+
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/target/iscsi/iscsi_target_nego.c linux-libre-4.4.107-gnu/drivers/target/iscsi/iscsi_target_nego.c
--- linux-libre-4.4-gnu/drivers/target/iscsi/iscsi_target_nego.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/target/iscsi/iscsi_target_nego.c	2017-12-20 04:05:01.000000000 -0500
@@ -489,14 +489,60 @@ static void iscsi_target_restore_sock_ca
 
 static int iscsi_target_do_login(struct iscsi_conn *, struct iscsi_login *);
 
-static bool iscsi_target_sk_state_check(struct sock *sk)
+static bool __iscsi_target_sk_check_close(struct sock *sk)
 {
 	if (sk->sk_state == TCP_CLOSE_WAIT || sk->sk_state == TCP_CLOSE) {
-		pr_debug("iscsi_target_sk_state_check: TCP_CLOSE_WAIT|TCP_CLOSE,"
+		pr_debug("__iscsi_target_sk_check_close: TCP_CLOSE_WAIT|TCP_CLOSE,"
 			"returning FALSE\n");
-		return false;
+		return true;
 	}
-	return true;
+	return false;
+}
+
+static bool iscsi_target_sk_check_close(struct iscsi_conn *conn)
+{
+	bool state = false;
+
+	if (conn->sock) {
+		struct sock *sk = conn->sock->sk;
+
+		read_lock_bh(&sk->sk_callback_lock);
+		state = (__iscsi_target_sk_check_close(sk) ||
+			 test_bit(LOGIN_FLAGS_CLOSED, &conn->login_flags));
+		read_unlock_bh(&sk->sk_callback_lock);
+	}
+	return state;
+}
+
+static bool iscsi_target_sk_check_flag(struct iscsi_conn *conn, unsigned int flag)
+{
+	bool state = false;
+
+	if (conn->sock) {
+		struct sock *sk = conn->sock->sk;
+
+		read_lock_bh(&sk->sk_callback_lock);
+		state = test_bit(flag, &conn->login_flags);
+		read_unlock_bh(&sk->sk_callback_lock);
+	}
+	return state;
+}
+
+static bool iscsi_target_sk_check_and_clear(struct iscsi_conn *conn, unsigned int flag)
+{
+	bool state = false;
+
+	if (conn->sock) {
+		struct sock *sk = conn->sock->sk;
+
+		write_lock_bh(&sk->sk_callback_lock);
+		state = (__iscsi_target_sk_check_close(sk) ||
+			 test_bit(LOGIN_FLAGS_CLOSED, &conn->login_flags));
+		if (!state)
+			clear_bit(flag, &conn->login_flags);
+		write_unlock_bh(&sk->sk_callback_lock);
+	}
+	return state;
 }
 
 static void iscsi_target_login_drop(struct iscsi_conn *conn, struct iscsi_login *login)
@@ -536,6 +582,20 @@ static void iscsi_target_do_login_rx(str
 
 	pr_debug("entering iscsi_target_do_login_rx, conn: %p, %s:%d\n",
 			conn, current->comm, current->pid);
+	/*
+	 * If iscsi_target_do_login_rx() has been invoked by ->sk_data_ready()
+	 * before initial PDU processing in iscsi_target_start_negotiation()
+	 * has completed, go ahead and retry until it's cleared.
+	 *
+	 * Otherwise if the TCP connection drops while this is occuring,
+	 * iscsi_target_start_negotiation() will detect the failure, call
+	 * cancel_delayed_work_sync(&conn->login_work), and cleanup the
+	 * remaining iscsi connection resources from iscsi_np process context.
+	 */
+	if (iscsi_target_sk_check_flag(conn, LOGIN_FLAGS_INITIAL_PDU)) {
+		schedule_delayed_work(&conn->login_work, msecs_to_jiffies(10));
+		return;
+	}
 
 	spin_lock(&tpg->tpg_state_lock);
 	state = (tpg->tpg_state == TPG_STATE_ACTIVE);
@@ -543,26 +603,12 @@ static void iscsi_target_do_login_rx(str
 
 	if (!state) {
 		pr_debug("iscsi_target_do_login_rx: tpg_state != TPG_STATE_ACTIVE\n");
-		iscsi_target_restore_sock_callbacks(conn);
-		iscsi_target_login_drop(conn, login);
-		iscsit_deaccess_np(np, tpg, tpg_np);
-		return;
+		goto err;
 	}
 
-	if (conn->sock) {
-		struct sock *sk = conn->sock->sk;
-
-		read_lock_bh(&sk->sk_callback_lock);
-		state = iscsi_target_sk_state_check(sk);
-		read_unlock_bh(&sk->sk_callback_lock);
-
-		if (!state) {
-			pr_debug("iscsi_target_do_login_rx, TCP state CLOSE\n");
-			iscsi_target_restore_sock_callbacks(conn);
-			iscsi_target_login_drop(conn, login);
-			iscsit_deaccess_np(np, tpg, tpg_np);
-			return;
-		}
+	if (iscsi_target_sk_check_close(conn)) {
+		pr_debug("iscsi_target_do_login_rx, TCP state CLOSE\n");
+		goto err;
 	}
 
 	conn->login_kworker = current;
@@ -580,34 +626,29 @@ static void iscsi_target_do_login_rx(str
 	flush_signals(current);
 	conn->login_kworker = NULL;
 
-	if (rc < 0) {
-		iscsi_target_restore_sock_callbacks(conn);
-		iscsi_target_login_drop(conn, login);
-		iscsit_deaccess_np(np, tpg, tpg_np);
-		return;
-	}
+	if (rc < 0)
+		goto err;
 
 	pr_debug("iscsi_target_do_login_rx after rx_login_io, %p, %s:%d\n",
 			conn, current->comm, current->pid);
 
 	rc = iscsi_target_do_login(conn, login);
 	if (rc < 0) {
-		iscsi_target_restore_sock_callbacks(conn);
-		iscsi_target_login_drop(conn, login);
-		iscsit_deaccess_np(np, tpg, tpg_np);
+		goto err;
 	} else if (!rc) {
-		if (conn->sock) {
-			struct sock *sk = conn->sock->sk;
-
-			write_lock_bh(&sk->sk_callback_lock);
-			clear_bit(LOGIN_FLAGS_READ_ACTIVE, &conn->login_flags);
-			write_unlock_bh(&sk->sk_callback_lock);
-		}
+		if (iscsi_target_sk_check_and_clear(conn, LOGIN_FLAGS_READ_ACTIVE))
+			goto err;
 	} else if (rc == 1) {
 		iscsi_target_nego_release(conn);
 		iscsi_post_login_handler(np, conn, zero_tsih);
 		iscsit_deaccess_np(np, tpg, tpg_np);
 	}
+	return;
+
+err:
+	iscsi_target_restore_sock_callbacks(conn);
+	iscsi_target_login_drop(conn, login);
+	iscsit_deaccess_np(np, tpg, tpg_np);
 }
 
 static void iscsi_target_do_cleanup(struct work_struct *work)
@@ -655,31 +696,54 @@ static void iscsi_target_sk_state_change
 		orig_state_change(sk);
 		return;
 	}
+	state = __iscsi_target_sk_check_close(sk);
+	pr_debug("__iscsi_target_sk_close_change: state: %d\n", state);
+
 	if (test_bit(LOGIN_FLAGS_READ_ACTIVE, &conn->login_flags)) {
 		pr_debug("Got LOGIN_FLAGS_READ_ACTIVE=1 sk_state_change"
 			 " conn: %p\n", conn);
+		if (state)
+			set_bit(LOGIN_FLAGS_CLOSED, &conn->login_flags);
 		write_unlock_bh(&sk->sk_callback_lock);
 		orig_state_change(sk);
 		return;
 	}
-	if (test_and_set_bit(LOGIN_FLAGS_CLOSED, &conn->login_flags)) {
+	if (test_bit(LOGIN_FLAGS_CLOSED, &conn->login_flags)) {
 		pr_debug("Got LOGIN_FLAGS_CLOSED=1 sk_state_change conn: %p\n",
 			 conn);
 		write_unlock_bh(&sk->sk_callback_lock);
 		orig_state_change(sk);
 		return;
 	}
+	/*
+	 * If the TCP connection has dropped, go ahead and set LOGIN_FLAGS_CLOSED,
+	 * but only queue conn->login_work -> iscsi_target_do_login_rx()
+	 * processing if LOGIN_FLAGS_INITIAL_PDU has already been cleared.
+	 *
+	 * When iscsi_target_do_login_rx() runs, iscsi_target_sk_check_close()
+	 * will detect the dropped TCP connection from delayed workqueue context.
+	 *
+	 * If LOGIN_FLAGS_INITIAL_PDU is still set, which means the initial
+	 * iscsi_target_start_negotiation() is running, iscsi_target_do_login()
+	 * via iscsi_target_sk_check_close() or iscsi_target_start_negotiation()
+	 * via iscsi_target_sk_check_and_clear() is responsible for detecting the
+	 * dropped TCP connection in iscsi_np process context, and cleaning up
+	 * the remaining iscsi connection resources.
+	 */
+	if (state) {
+		pr_debug("iscsi_target_sk_state_change got failed state\n");
+		set_bit(LOGIN_FLAGS_CLOSED, &conn->login_flags);
+		state = test_bit(LOGIN_FLAGS_INITIAL_PDU, &conn->login_flags);
+		write_unlock_bh(&sk->sk_callback_lock);
 
-	state = iscsi_target_sk_state_check(sk);
-	write_unlock_bh(&sk->sk_callback_lock);
-
-	pr_debug("iscsi_target_sk_state_change: state: %d\n", state);
+		orig_state_change(sk);
 
-	if (!state) {
-		pr_debug("iscsi_target_sk_state_change got failed state\n");
-		schedule_delayed_work(&conn->login_cleanup_work, 0);
+		if (!state)
+			schedule_delayed_work(&conn->login_work, 0);
 		return;
 	}
+	write_unlock_bh(&sk->sk_callback_lock);
+
 	orig_state_change(sk);
 }
 
@@ -818,7 +882,8 @@ static int iscsi_target_handle_csg_zero(
 			SENDER_TARGET,
 			login->rsp_buf,
 			&login->rsp_length,
-			conn->param_list);
+			conn->param_list,
+			conn->tpg->tpg_attrib.login_keys_workaround);
 	if (ret < 0)
 		return -1;
 
@@ -888,7 +953,8 @@ static int iscsi_target_handle_csg_one(s
 			SENDER_TARGET,
 			login->rsp_buf,
 			&login->rsp_length,
-			conn->param_list);
+			conn->param_list,
+			conn->tpg->tpg_attrib.login_keys_workaround);
 	if (ret < 0) {
 		iscsit_tx_login_rsp(conn, ISCSI_STATUS_CLS_INITIATOR_ERR,
 				ISCSI_LOGIN_STATUS_INIT_ERR);
@@ -942,6 +1008,15 @@ static int iscsi_target_do_login(struct
 			if (iscsi_target_handle_csg_one(conn, login) < 0)
 				return -1;
 			if (login_rsp->flags & ISCSI_FLAG_LOGIN_TRANSIT) {
+				/*
+				 * Check to make sure the TCP connection has not
+				 * dropped asynchronously while session reinstatement
+				 * was occuring in this kthread context, before
+				 * transitioning to full feature phase operation.
+				 */
+				if (iscsi_target_sk_check_close(conn))
+					return -1;
+
 				login->tsih = conn->sess->tsih;
 				login->login_complete = 1;
 				iscsi_target_restore_sock_callbacks(conn);
@@ -968,21 +1043,6 @@ static int iscsi_target_do_login(struct
 		break;
 	}
 
-	if (conn->sock) {
-		struct sock *sk = conn->sock->sk;
-		bool state;
-
-		read_lock_bh(&sk->sk_callback_lock);
-		state = iscsi_target_sk_state_check(sk);
-		read_unlock_bh(&sk->sk_callback_lock);
-
-		if (!state) {
-			pr_debug("iscsi_target_do_login() failed state for"
-				 " conn: %p\n", conn);
-			return -1;
-		}
-	}
-
 	return 0;
 }
 
@@ -1246,16 +1306,28 @@ int iscsi_target_start_negotiation(
 {
 	int ret;
 
+       if (conn->sock) {
+               struct sock *sk = conn->sock->sk;
+
+		write_lock_bh(&sk->sk_callback_lock);
+		set_bit(LOGIN_FLAGS_READY, &conn->login_flags);
+		set_bit(LOGIN_FLAGS_INITIAL_PDU, &conn->login_flags);
+		write_unlock_bh(&sk->sk_callback_lock);
+	}
+	/*
+	 * If iscsi_target_do_login returns zero to signal more PDU
+	 * exchanges are required to complete the login, go ahead and
+	 * clear LOGIN_FLAGS_INITIAL_PDU but only if the TCP connection
+	 * is still active.
+	 *
+	 * Otherwise if TCP connection dropped asynchronously, go ahead
+	 * and perform connection cleanup now.
+	 */
 	ret = iscsi_target_do_login(conn, login);
-	if (!ret) {
-		if (conn->sock) {
-			struct sock *sk = conn->sock->sk;
+	if (!ret && iscsi_target_sk_check_and_clear(conn, LOGIN_FLAGS_INITIAL_PDU))
+		ret = -1;
 
-			write_lock_bh(&sk->sk_callback_lock);
-			set_bit(LOGIN_FLAGS_READY, &conn->login_flags);
-			write_unlock_bh(&sk->sk_callback_lock);
-		}
-	} else if (ret < 0) {
+	if (ret < 0) {
 		cancel_delayed_work_sync(&conn->login_work);
 		cancel_delayed_work_sync(&conn->login_cleanup_work);
 		iscsi_target_restore_sock_callbacks(conn);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/target/iscsi/iscsi_target_parameters.c linux-libre-4.4.107-gnu/drivers/target/iscsi/iscsi_target_parameters.c
--- linux-libre-4.4-gnu/drivers/target/iscsi/iscsi_target_parameters.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/target/iscsi/iscsi_target_parameters.c	2017-12-20 04:05:01.000000000 -0500
@@ -764,7 +764,8 @@ static int iscsi_check_for_auth_key(char
 	return 0;
 }
 
-static void iscsi_check_proposer_for_optional_reply(struct iscsi_param *param)
+static void iscsi_check_proposer_for_optional_reply(struct iscsi_param *param,
+						    bool keys_workaround)
 {
 	if (IS_TYPE_BOOL_AND(param)) {
 		if (!strcmp(param->value, NO))
@@ -772,35 +773,31 @@ static void iscsi_check_proposer_for_opt
 	} else if (IS_TYPE_BOOL_OR(param)) {
 		if (!strcmp(param->value, YES))
 			SET_PSTATE_REPLY_OPTIONAL(param);
-		 /*
-		  * Required for gPXE iSCSI boot client
-		  */
-		if (!strcmp(param->name, IMMEDIATEDATA))
-			SET_PSTATE_REPLY_OPTIONAL(param);
+
+		if (keys_workaround) {
+			/*
+			 * Required for gPXE iSCSI boot client
+			 */
+			if (!strcmp(param->name, IMMEDIATEDATA))
+				SET_PSTATE_REPLY_OPTIONAL(param);
+		}
 	} else if (IS_TYPE_NUMBER(param)) {
 		if (!strcmp(param->name, MAXRECVDATASEGMENTLENGTH))
 			SET_PSTATE_REPLY_OPTIONAL(param);
-		/*
-		 * The GlobalSAN iSCSI Initiator for MacOSX does
-		 * not respond to MaxBurstLength, FirstBurstLength,
-		 * DefaultTime2Wait or DefaultTime2Retain parameter keys.
-		 * So, we set them to 'reply optional' here, and assume the
-		 * the defaults from iscsi_parameters.h if the initiator
-		 * is not RFC compliant and the keys are not negotiated.
-		 */
-		if (!strcmp(param->name, MAXBURSTLENGTH))
-			SET_PSTATE_REPLY_OPTIONAL(param);
-		if (!strcmp(param->name, FIRSTBURSTLENGTH))
-			SET_PSTATE_REPLY_OPTIONAL(param);
-		if (!strcmp(param->name, DEFAULTTIME2WAIT))
-			SET_PSTATE_REPLY_OPTIONAL(param);
-		if (!strcmp(param->name, DEFAULTTIME2RETAIN))
-			SET_PSTATE_REPLY_OPTIONAL(param);
-		/*
-		 * Required for gPXE iSCSI boot client
-		 */
-		if (!strcmp(param->name, MAXCONNECTIONS))
-			SET_PSTATE_REPLY_OPTIONAL(param);
+
+		if (keys_workaround) {
+			/*
+			 * Required for Mellanox Flexboot PXE boot ROM
+			 */
+			if (!strcmp(param->name, FIRSTBURSTLENGTH))
+				SET_PSTATE_REPLY_OPTIONAL(param);
+
+			/*
+			 * Required for gPXE iSCSI boot client
+			 */
+			if (!strcmp(param->name, MAXCONNECTIONS))
+				SET_PSTATE_REPLY_OPTIONAL(param);
+		}
 	} else if (IS_PHASE_DECLARATIVE(param))
 		SET_PSTATE_REPLY_OPTIONAL(param);
 }
@@ -1437,7 +1434,8 @@ int iscsi_encode_text_output(
 	u8 sender,
 	char *textbuf,
 	u32 *length,
-	struct iscsi_param_list *param_list)
+	struct iscsi_param_list *param_list,
+	bool keys_workaround)
 {
 	char *output_buf = NULL;
 	struct iscsi_extra_response *er;
@@ -1473,7 +1471,8 @@ int iscsi_encode_text_output(
 			*length += 1;
 			output_buf = textbuf + *length;
 			SET_PSTATE_PROPOSER(param);
-			iscsi_check_proposer_for_optional_reply(param);
+			iscsi_check_proposer_for_optional_reply(param,
+							        keys_workaround);
 			pr_debug("Sending key: %s=%s\n",
 				param->name, param->value);
 		}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/target/iscsi/iscsi_target_parameters.h linux-libre-4.4.107-gnu/drivers/target/iscsi/iscsi_target_parameters.h
--- linux-libre-4.4-gnu/drivers/target/iscsi/iscsi_target_parameters.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/target/iscsi/iscsi_target_parameters.h	2017-12-20 04:05:01.000000000 -0500
@@ -40,7 +40,7 @@ extern int iscsi_extract_key_value(char
 extern int iscsi_update_param_value(struct iscsi_param *, char *);
 extern int iscsi_decode_text_input(u8, u8, char *, u32, struct iscsi_conn *);
 extern int iscsi_encode_text_output(u8, u8, char *, u32 *,
-			struct iscsi_param_list *);
+			struct iscsi_param_list *, bool);
 extern int iscsi_check_negotiated_keys(struct iscsi_param_list *);
 extern void iscsi_set_connection_parameters(struct iscsi_conn_ops *,
 			struct iscsi_param_list *);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/target/iscsi/iscsi_target_tpg.c linux-libre-4.4.107-gnu/drivers/target/iscsi/iscsi_target_tpg.c
--- linux-libre-4.4-gnu/drivers/target/iscsi/iscsi_target_tpg.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/target/iscsi/iscsi_target_tpg.c	2017-12-20 04:05:01.000000000 -0500
@@ -227,6 +227,7 @@ static void iscsit_set_default_tpg_attri
 	a->t10_pi = TA_DEFAULT_T10_PI;
 	a->fabric_prot_type = TA_DEFAULT_FABRIC_PROT_TYPE;
 	a->tpg_enabled_sendtargets = TA_DEFAULT_TPG_ENABLED_SENDTARGETS;
+	a->login_keys_workaround = TA_DEFAULT_LOGIN_KEYS_WORKAROUND;
 }
 
 int iscsit_tpg_add_portal_group(struct iscsi_tiqn *tiqn, struct iscsi_portal_group *tpg)
@@ -260,7 +261,6 @@ err_out:
 		iscsi_release_param_list(tpg->param_list);
 		tpg->param_list = NULL;
 	}
-	kfree(tpg);
 	return -ENOMEM;
 }
 
@@ -590,16 +590,6 @@ int iscsit_tpg_del_network_portal(
 	return iscsit_tpg_release_np(tpg_np, tpg, np);
 }
 
-int iscsit_tpg_set_initiator_node_queue_depth(
-	struct iscsi_portal_group *tpg,
-	unsigned char *initiatorname,
-	u32 queue_depth,
-	int force)
-{
-	return core_tpg_set_initiator_node_queue_depth(&tpg->tpg_se_tpg,
-		initiatorname, queue_depth, force);
-}
-
 int iscsit_ta_authentication(struct iscsi_portal_group *tpg, u32 authentication)
 {
 	unsigned char buf1[256], buf2[256], *none = NULL;
@@ -910,3 +900,21 @@ int iscsit_ta_tpg_enabled_sendtargets(
 
 	return 0;
 }
+
+int iscsit_ta_login_keys_workaround(
+	struct iscsi_portal_group *tpg,
+	u32 flag)
+{
+	struct iscsi_tpg_attrib *a = &tpg->tpg_attrib;
+
+	if ((flag != 0) && (flag != 1)) {
+		pr_err("Illegal value %d\n", flag);
+		return -EINVAL;
+	}
+
+	a->login_keys_workaround = flag;
+	pr_debug("iSCSI_TPG[%hu] - TPG enabled bit for login keys workaround: %s ",
+		tpg->tpgt, (a->login_keys_workaround) ? "ON" : "OFF");
+
+	return 0;
+}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/target/iscsi/iscsi_target_tpg.h linux-libre-4.4.107-gnu/drivers/target/iscsi/iscsi_target_tpg.h
--- linux-libre-4.4-gnu/drivers/target/iscsi/iscsi_target_tpg.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/target/iscsi/iscsi_target_tpg.h	2017-12-20 04:05:01.000000000 -0500
@@ -26,8 +26,6 @@ extern struct iscsi_tpg_np *iscsit_tpg_a
 			int);
 extern int iscsit_tpg_del_network_portal(struct iscsi_portal_group *,
 			struct iscsi_tpg_np *);
-extern int iscsit_tpg_set_initiator_node_queue_depth(struct iscsi_portal_group *,
-			unsigned char *, u32, int);
 extern int iscsit_ta_authentication(struct iscsi_portal_group *, u32);
 extern int iscsit_ta_login_timeout(struct iscsi_portal_group *, u32);
 extern int iscsit_ta_netif_timeout(struct iscsi_portal_group *, u32);
@@ -41,5 +39,6 @@ extern int iscsit_ta_default_erl(struct
 extern int iscsit_ta_t10_pi(struct iscsi_portal_group *, u32);
 extern int iscsit_ta_fabric_prot_type(struct iscsi_portal_group *, u32);
 extern int iscsit_ta_tpg_enabled_sendtargets(struct iscsi_portal_group *, u32);
+extern int iscsit_ta_login_keys_workaround(struct iscsi_portal_group *, u32);
 
 #endif /* ISCSI_TARGET_TPG_H */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/target/iscsi/iscsi_target_util.c linux-libre-4.4.107-gnu/drivers/target/iscsi/iscsi_target_util.c
--- linux-libre-4.4-gnu/drivers/target/iscsi/iscsi_target_util.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/target/iscsi/iscsi_target_util.c	2017-12-20 04:05:01.000000000 -0500
@@ -731,21 +731,23 @@ void iscsit_free_cmd(struct iscsi_cmd *c
 {
 	struct se_cmd *se_cmd = NULL;
 	int rc;
+	bool op_scsi = false;
 	/*
 	 * Determine if a struct se_cmd is associated with
 	 * this struct iscsi_cmd.
 	 */
 	switch (cmd->iscsi_opcode) {
 	case ISCSI_OP_SCSI_CMD:
-		se_cmd = &cmd->se_cmd;
-		__iscsit_free_cmd(cmd, true, shutdown);
+		op_scsi = true;
 		/*
 		 * Fallthrough
 		 */
 	case ISCSI_OP_SCSI_TMFUNC:
-		rc = transport_generic_free_cmd(&cmd->se_cmd, shutdown);
-		if (!rc && shutdown && se_cmd && se_cmd->se_sess) {
-			__iscsit_free_cmd(cmd, true, shutdown);
+		se_cmd = &cmd->se_cmd;
+		__iscsit_free_cmd(cmd, op_scsi, shutdown);
+		rc = transport_generic_free_cmd(se_cmd, shutdown);
+		if (!rc && shutdown && se_cmd->se_sess) {
+			__iscsit_free_cmd(cmd, op_scsi, shutdown);
 			target_put_sess_cmd(se_cmd);
 		}
 		break;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/target/target_core_alua.c linux-libre-4.4.107-gnu/drivers/target/target_core_alua.c
--- linux-libre-4.4-gnu/drivers/target/target_core_alua.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/target/target_core_alua.c	2017-12-20 04:05:01.000000000 -0500
@@ -1010,7 +1010,7 @@ static void core_alua_queue_state_change
 static void core_alua_do_transition_tg_pt_work(struct work_struct *work)
 {
 	struct t10_alua_tg_pt_gp *tg_pt_gp = container_of(work,
-		struct t10_alua_tg_pt_gp, tg_pt_gp_transition_work.work);
+		struct t10_alua_tg_pt_gp, tg_pt_gp_transition_work);
 	struct se_device *dev = tg_pt_gp->tg_pt_gp_dev;
 	bool explicit = (tg_pt_gp->tg_pt_gp_alua_access_status ==
 			 ALUA_STATUS_ALTERED_BY_EXPLICIT_STPG);
@@ -1073,17 +1073,8 @@ static int core_alua_do_transition_tg_pt
 	/*
 	 * Flush any pending transitions
 	 */
-	if (!explicit && tg_pt_gp->tg_pt_gp_implicit_trans_secs &&
-	    atomic_read(&tg_pt_gp->tg_pt_gp_alua_access_state) ==
-	    ALUA_ACCESS_STATE_TRANSITION) {
-		/* Just in case */
-		tg_pt_gp->tg_pt_gp_alua_pending_state = new_state;
-		tg_pt_gp->tg_pt_gp_transition_complete = &wait;
-		flush_delayed_work(&tg_pt_gp->tg_pt_gp_transition_work);
-		wait_for_completion(&wait);
-		tg_pt_gp->tg_pt_gp_transition_complete = NULL;
-		return 0;
-	}
+	if (!explicit)
+		flush_work(&tg_pt_gp->tg_pt_gp_transition_work);
 
 	/*
 	 * Save the old primary ALUA access state, and set the current state
@@ -1114,17 +1105,9 @@ static int core_alua_do_transition_tg_pt
 	atomic_inc(&tg_pt_gp->tg_pt_gp_ref_cnt);
 	spin_unlock(&dev->t10_alua.tg_pt_gps_lock);
 
-	if (!explicit && tg_pt_gp->tg_pt_gp_implicit_trans_secs) {
-		unsigned long transition_tmo;
-
-		transition_tmo = tg_pt_gp->tg_pt_gp_implicit_trans_secs * HZ;
-		queue_delayed_work(tg_pt_gp->tg_pt_gp_dev->tmr_wq,
-				   &tg_pt_gp->tg_pt_gp_transition_work,
-				   transition_tmo);
-	} else {
+	schedule_work(&tg_pt_gp->tg_pt_gp_transition_work);
+	if (explicit) {
 		tg_pt_gp->tg_pt_gp_transition_complete = &wait;
-		queue_delayed_work(tg_pt_gp->tg_pt_gp_dev->tmr_wq,
-				   &tg_pt_gp->tg_pt_gp_transition_work, 0);
 		wait_for_completion(&wait);
 		tg_pt_gp->tg_pt_gp_transition_complete = NULL;
 	}
@@ -1692,8 +1675,8 @@ struct t10_alua_tg_pt_gp *core_alua_allo
 	mutex_init(&tg_pt_gp->tg_pt_gp_md_mutex);
 	spin_lock_init(&tg_pt_gp->tg_pt_gp_lock);
 	atomic_set(&tg_pt_gp->tg_pt_gp_ref_cnt, 0);
-	INIT_DELAYED_WORK(&tg_pt_gp->tg_pt_gp_transition_work,
-			  core_alua_do_transition_tg_pt_work);
+	INIT_WORK(&tg_pt_gp->tg_pt_gp_transition_work,
+		  core_alua_do_transition_tg_pt_work);
 	tg_pt_gp->tg_pt_gp_dev = dev;
 	atomic_set(&tg_pt_gp->tg_pt_gp_alua_access_state,
 		ALUA_ACCESS_STATE_ACTIVE_OPTIMIZED);
@@ -1801,7 +1784,7 @@ void core_alua_free_tg_pt_gp(
 	dev->t10_alua.alua_tg_pt_gps_counter--;
 	spin_unlock(&dev->t10_alua.tg_pt_gps_lock);
 
-	flush_delayed_work(&tg_pt_gp->tg_pt_gp_transition_work);
+	flush_work(&tg_pt_gp->tg_pt_gp_transition_work);
 
 	/*
 	 * Allow a struct t10_alua_tg_pt_gp_member * referenced by
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/target/target_core_device.c linux-libre-4.4.107-gnu/drivers/target/target_core_device.c
--- linux-libre-4.4-gnu/drivers/target/target_core_device.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/target/target_core_device.c	2017-12-20 04:05:01.000000000 -0500
@@ -77,12 +77,16 @@ transport_lookup_cmd_lun(struct se_cmd *
 					&deve->read_bytes);
 
 		se_lun = rcu_dereference(deve->se_lun);
+
+		if (!percpu_ref_tryget_live(&se_lun->lun_ref)) {
+			se_lun = NULL;
+			goto out_unlock;
+		}
+
 		se_cmd->se_lun = rcu_dereference(deve->se_lun);
 		se_cmd->pr_res_key = deve->pr_res_key;
 		se_cmd->orig_fe_lun = unpacked_lun;
 		se_cmd->se_cmd_flags |= SCF_SE_LUN_CMD;
-
-		percpu_ref_get(&se_lun->lun_ref);
 		se_cmd->lun_ref_active = true;
 
 		if ((se_cmd->data_direction == DMA_TO_DEVICE) &&
@@ -96,6 +100,7 @@ transport_lookup_cmd_lun(struct se_cmd *
 			goto ref_dev;
 		}
 	}
+out_unlock:
 	rcu_read_unlock();
 
 	if (!se_lun) {
@@ -362,7 +367,15 @@ int core_enable_device_list_for_node(
 			kfree(new);
 			return -EINVAL;
 		}
-		BUG_ON(orig->se_lun_acl != NULL);
+		if (orig->se_lun_acl != NULL) {
+			pr_warn_ratelimited("Detected existing explicit"
+				" se_lun_acl->se_lun_group reference for %s"
+				" mapped_lun: %llu, failing\n",
+				 nacl->initiatorname, mapped_lun);
+			mutex_unlock(&nacl->lun_entry_mutex);
+			kfree(new);
+			return -EINVAL;
+		}
 
 		rcu_assign_pointer(new->se_lun, lun);
 		rcu_assign_pointer(new->se_lun_acl, lun_acl);
@@ -818,6 +831,7 @@ struct se_device *target_alloc_device(st
 	xcopy_lun = &dev->xcopy_lun;
 	rcu_assign_pointer(xcopy_lun->lun_se_dev, dev);
 	init_completion(&xcopy_lun->lun_ref_comp);
+	init_completion(&xcopy_lun->lun_shutdown_comp);
 	INIT_LIST_HEAD(&xcopy_lun->lun_deve_list);
 	INIT_LIST_HEAD(&xcopy_lun->lun_dev_link);
 	mutex_init(&xcopy_lun->lun_tg_pt_md_mutex);
@@ -826,6 +840,51 @@ struct se_device *target_alloc_device(st
 	return dev;
 }
 
+/*
+ * Check if the underlying struct block_device request_queue supports
+ * the QUEUE_FLAG_DISCARD bit for UNMAP/WRITE_SAME in SCSI + TRIM
+ * in ATA and we need to set TPE=1
+ */
+bool target_configure_unmap_from_queue(struct se_dev_attrib *attrib,
+				       struct request_queue *q)
+{
+	int block_size = queue_logical_block_size(q);
+
+	if (!blk_queue_discard(q))
+		return false;
+
+	attrib->max_unmap_lba_count =
+		q->limits.max_discard_sectors >> (ilog2(block_size) - 9);
+	/*
+	 * Currently hardcoded to 1 in Linux/SCSI code..
+	 */
+	attrib->max_unmap_block_desc_count = 1;
+	attrib->unmap_granularity = q->limits.discard_granularity / block_size;
+	attrib->unmap_granularity_alignment = q->limits.discard_alignment /
+								block_size;
+	return true;
+}
+EXPORT_SYMBOL(target_configure_unmap_from_queue);
+
+/*
+ * Convert from blocksize advertised to the initiator to the 512 byte
+ * units unconditionally used by the Linux block layer.
+ */
+sector_t target_to_linux_sector(struct se_device *dev, sector_t lb)
+{
+	switch (dev->dev_attrib.block_size) {
+	case 4096:
+		return lb << 3;
+	case 2048:
+		return lb << 2;
+	case 1024:
+		return lb << 1;
+	default:
+		return lb;
+	}
+}
+EXPORT_SYMBOL(target_to_linux_sector);
+
 int target_configure_device(struct se_device *dev)
 {
 	struct se_hba *hba = dev->se_hba;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/target/target_core_fabric_configfs.c linux-libre-4.4.107-gnu/drivers/target/target_core_fabric_configfs.c
--- linux-libre-4.4-gnu/drivers/target/target_core_fabric_configfs.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/target/target_core_fabric_configfs.c	2017-12-20 04:05:01.000000000 -0500
@@ -92,6 +92,11 @@ static int target_fabric_mappedlun_link(
 		pr_err("Source se_lun->lun_se_dev does not exist\n");
 		return -EINVAL;
 	}
+	if (lun->lun_shutdown) {
+		pr_err("Unable to create mappedlun symlink because"
+			" lun->lun_shutdown=true\n");
+		return -EINVAL;
+	}
 	se_tpg = lun->lun_tpg;
 
 	nacl_ci = &lun_acl_ci->ci_parent->ci_group->cg_item;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/target/target_core_file.c linux-libre-4.4.107-gnu/drivers/target/target_core_file.c
--- linux-libre-4.4-gnu/drivers/target/target_core_file.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/target/target_core_file.c	2017-12-20 04:05:01.000000000 -0500
@@ -160,25 +160,10 @@ static int fd_configure_device(struct se
 			" block_device blocks: %llu logical_block_size: %d\n",
 			dev_size, div_u64(dev_size, fd_dev->fd_block_size),
 			fd_dev->fd_block_size);
-		/*
-		 * Check if the underlying struct block_device request_queue supports
-		 * the QUEUE_FLAG_DISCARD bit for UNMAP/WRITE_SAME in SCSI + TRIM
-		 * in ATA and we need to set TPE=1
-		 */
-		if (blk_queue_discard(q)) {
-			dev->dev_attrib.max_unmap_lba_count =
-				q->limits.max_discard_sectors;
-			/*
-			 * Currently hardcoded to 1 in Linux/SCSI code..
-			 */
-			dev->dev_attrib.max_unmap_block_desc_count = 1;
-			dev->dev_attrib.unmap_granularity =
-				q->limits.discard_granularity >> 9;
-			dev->dev_attrib.unmap_granularity_alignment =
-				q->limits.discard_alignment;
+
+		if (target_configure_unmap_from_queue(&dev->dev_attrib, q))
 			pr_debug("IFILE: BLOCK Discard support available,"
-					" disabled by default\n");
-		}
+				 " disabled by default\n");
 		/*
 		 * Enable write same emulation for IBLOCK and use 0xFFFF as
 		 * the smaller WRITE_SAME(10) only has a two-byte block count.
@@ -481,6 +466,10 @@ fd_execute_unmap(struct se_cmd *cmd, sec
 	struct inode *inode = file->f_mapping->host;
 	int ret;
 
+	if (!nolb) {
+		return 0;
+	}
+
 	if (cmd->se_dev->dev_attrib.pi_prot_type) {
 		ret = fd_do_prot_unmap(cmd, lba, nolb);
 		if (ret)
@@ -490,9 +479,12 @@ fd_execute_unmap(struct se_cmd *cmd, sec
 	if (S_ISBLK(inode->i_mode)) {
 		/* The backend is block device, use discard */
 		struct block_device *bdev = inode->i_bdev;
+		struct se_device *dev = cmd->se_dev;
 
-		ret = blkdev_issue_discard(bdev, lba,
-				nolb, GFP_KERNEL, 0);
+		ret = blkdev_issue_discard(bdev,
+					   target_to_linux_sector(dev, lba),
+					   target_to_linux_sector(dev,  nolb),
+					   GFP_KERNEL, 0);
 		if (ret < 0) {
 			pr_warn("FILEIO: blkdev_issue_discard() failed: %d\n",
 				ret);
@@ -606,8 +598,7 @@ fd_execute_rw(struct se_cmd *cmd, struct
 	if (ret < 0)
 		return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
 
-	if (ret)
-		target_complete_cmd(cmd, SAM_STAT_GOOD);
+	target_complete_cmd(cmd, SAM_STAT_GOOD);
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/target/target_core_iblock.c linux-libre-4.4.107-gnu/drivers/target/target_core_iblock.c
--- linux-libre-4.4-gnu/drivers/target/target_core_iblock.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/target/target_core_iblock.c	2017-12-20 04:05:01.000000000 -0500
@@ -121,27 +121,10 @@ static int iblock_configure_device(struc
 	dev->dev_attrib.hw_max_sectors = queue_max_hw_sectors(q);
 	dev->dev_attrib.hw_queue_depth = q->nr_requests;
 
-	/*
-	 * Check if the underlying struct block_device request_queue supports
-	 * the QUEUE_FLAG_DISCARD bit for UNMAP/WRITE_SAME in SCSI + TRIM
-	 * in ATA and we need to set TPE=1
-	 */
-	if (blk_queue_discard(q)) {
-		dev->dev_attrib.max_unmap_lba_count =
-				q->limits.max_discard_sectors;
-
-		/*
-		 * Currently hardcoded to 1 in Linux/SCSI code..
-		 */
-		dev->dev_attrib.max_unmap_block_desc_count = 1;
-		dev->dev_attrib.unmap_granularity =
-				q->limits.discard_granularity >> 9;
-		dev->dev_attrib.unmap_granularity_alignment =
-				q->limits.discard_alignment;
-
+	if (target_configure_unmap_from_queue(&dev->dev_attrib, q))
 		pr_debug("IBLOCK: BLOCK Discard support available,"
-				" disabled by default\n");
-	}
+			 " disabled by default\n");
+
 	/*
 	 * Enable write same emulation for IBLOCK and use 0xFFFF as
 	 * the smaller WRITE_SAME(10) only has a two-byte block count.
@@ -413,9 +396,13 @@ static sense_reason_t
 iblock_execute_unmap(struct se_cmd *cmd, sector_t lba, sector_t nolb)
 {
 	struct block_device *bdev = IBLOCK_DEV(cmd->se_dev)->ibd_bd;
+	struct se_device *dev = cmd->se_dev;
 	int ret;
 
-	ret = blkdev_issue_discard(bdev, lba, nolb, GFP_KERNEL, 0);
+	ret = blkdev_issue_discard(bdev,
+				   target_to_linux_sector(dev, lba),
+				   target_to_linux_sector(dev,  nolb),
+				   GFP_KERNEL, 0);
 	if (ret < 0) {
 		pr_err("blkdev_issue_discard() failed: %d\n", ret);
 		return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
@@ -431,8 +418,10 @@ iblock_execute_write_same(struct se_cmd
 	struct scatterlist *sg;
 	struct bio *bio;
 	struct bio_list list;
-	sector_t block_lba = cmd->t_task_lba;
-	sector_t sectors = sbc_get_write_same_sectors(cmd);
+	struct se_device *dev = cmd->se_dev;
+	sector_t block_lba = target_to_linux_sector(dev, cmd->t_task_lba);
+	sector_t sectors = target_to_linux_sector(dev,
+					sbc_get_write_same_sectors(cmd));
 
 	if (cmd->prot_op) {
 		pr_err("WRITE_SAME: Protection information with IBLOCK"
@@ -646,12 +635,12 @@ iblock_execute_rw(struct se_cmd *cmd, st
 		  enum dma_data_direction data_direction)
 {
 	struct se_device *dev = cmd->se_dev;
+	sector_t block_lba = target_to_linux_sector(dev, cmd->t_task_lba);
 	struct iblock_req *ibr;
 	struct bio *bio, *bio_start;
 	struct bio_list list;
 	struct scatterlist *sg;
 	u32 sg_num = sgl_nents;
-	sector_t block_lba;
 	unsigned bio_cnt;
 	int rw = 0;
 	int i;
@@ -677,24 +666,6 @@ iblock_execute_rw(struct se_cmd *cmd, st
 		rw = READ;
 	}
 
-	/*
-	 * Convert the blocksize advertised to the initiator to the 512 byte
-	 * units unconditionally used by the Linux block layer.
-	 */
-	if (dev->dev_attrib.block_size == 4096)
-		block_lba = (cmd->t_task_lba << 3);
-	else if (dev->dev_attrib.block_size == 2048)
-		block_lba = (cmd->t_task_lba << 2);
-	else if (dev->dev_attrib.block_size == 1024)
-		block_lba = (cmd->t_task_lba << 1);
-	else if (dev->dev_attrib.block_size == 512)
-		block_lba = cmd->t_task_lba;
-	else {
-		pr_err("Unsupported SCSI -> BLOCK LBA conversion:"
-				" %u\n", dev->dev_attrib.block_size);
-		return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
-	}
-
 	ibr = kzalloc(sizeof(struct iblock_req), GFP_KERNEL);
 	if (!ibr)
 		goto fail;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/target/target_core_internal.h linux-libre-4.4.107-gnu/drivers/target/target_core_internal.h
--- linux-libre-4.4-gnu/drivers/target/target_core_internal.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/target/target_core_internal.h	2017-12-20 04:05:01.000000000 -0500
@@ -132,7 +132,7 @@ int	init_se_kmem_caches(void);
 void	release_se_kmem_caches(void);
 u32	scsi_get_new_index(scsi_index_t);
 void	transport_subsystem_check_init(void);
-void	transport_cmd_finish_abort(struct se_cmd *, int);
+int	transport_cmd_finish_abort(struct se_cmd *, int);
 unsigned char *transport_dump_cmd_direction(struct se_cmd *);
 void	transport_dump_dev_state(struct se_device *, char *, int *);
 void	transport_dump_dev_info(struct se_device *, struct se_lun *,
@@ -148,6 +148,7 @@ sense_reason_t	target_cmd_size_check(str
 void	target_qf_do_work(struct work_struct *work);
 bool	target_check_wce(struct se_device *dev);
 bool	target_check_fua(struct se_device *dev);
+void	__target_execute_cmd(struct se_cmd *, bool);
 
 /* target_core_stat.c */
 void	target_stat_setup_dev_default_groups(struct se_device *);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/target/target_core_pr.c linux-libre-4.4.107-gnu/drivers/target/target_core_pr.c
--- linux-libre-4.4-gnu/drivers/target/target_core_pr.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/target/target_core_pr.c	2017-12-20 04:05:01.000000000 -0500
@@ -56,8 +56,10 @@ void core_pr_dump_initiator_port(
 	char *buf,
 	u32 size)
 {
-	if (!pr_reg->isid_present_at_reg)
+	if (!pr_reg->isid_present_at_reg) {
 		buf[0] = '\0';
+		return;
+	}
 
 	snprintf(buf, size, ",i,0x%s", pr_reg->pr_reg_isid);
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/target/target_core_pscsi.c linux-libre-4.4.107-gnu/drivers/target/target_core_pscsi.c
--- linux-libre-4.4-gnu/drivers/target/target_core_pscsi.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/target/target_core_pscsi.c	2017-12-20 04:05:01.000000000 -0500
@@ -154,7 +154,7 @@ static void pscsi_tape_read_blocksize(st
 
 	buf = kzalloc(12, GFP_KERNEL);
 	if (!buf)
-		return;
+		goto out_free;
 
 	memset(cdb, 0, MAX_COMMAND_SIZE);
 	cdb[0] = MODE_SENSE;
@@ -169,9 +169,10 @@ static void pscsi_tape_read_blocksize(st
 	 * If MODE_SENSE still returns zero, set the default value to 1024.
 	 */
 	sdev->sector_size = (buf[9] << 16) | (buf[10] << 8) | (buf[11]);
+out_free:
 	if (!sdev->sector_size)
 		sdev->sector_size = 1024;
-out_free:
+
 	kfree(buf);
 }
 
@@ -314,9 +315,10 @@ static int pscsi_add_device_to_list(stru
 				sd->lun, sd->queue_depth);
 	}
 
-	dev->dev_attrib.hw_block_size = sd->sector_size;
+	dev->dev_attrib.hw_block_size =
+		min_not_zero((int)sd->sector_size, 512);
 	dev->dev_attrib.hw_max_sectors =
-		min_t(int, sd->host->max_sectors, queue_max_hw_sectors(q));
+		min_not_zero(sd->host->max_sectors, queue_max_hw_sectors(q));
 	dev->dev_attrib.hw_queue_depth = sd->queue_depth;
 
 	/*
@@ -339,8 +341,10 @@ static int pscsi_add_device_to_list(stru
 	/*
 	 * For TYPE_TAPE, attempt to determine blocksize with MODE_SENSE.
 	 */
-	if (sd->type == TYPE_TAPE)
+	if (sd->type == TYPE_TAPE) {
 		pscsi_tape_read_blocksize(dev, sd);
+		dev->dev_attrib.hw_block_size = sd->sector_size;
+	}
 	return 0;
 }
 
@@ -406,7 +410,7 @@ static int pscsi_create_type_disk(struct
 /*
  * Called with struct Scsi_Host->host_lock called.
  */
-static int pscsi_create_type_rom(struct se_device *dev, struct scsi_device *sd)
+static int pscsi_create_type_nondisk(struct se_device *dev, struct scsi_device *sd)
 	__releases(sh->host_lock)
 {
 	struct pscsi_hba_virt *phv = dev->se_hba->hba_ptr;
@@ -433,28 +437,6 @@ static int pscsi_create_type_rom(struct
 	return 0;
 }
 
-/*
- * Called with struct Scsi_Host->host_lock called.
- */
-static int pscsi_create_type_other(struct se_device *dev,
-		struct scsi_device *sd)
-	__releases(sh->host_lock)
-{
-	struct pscsi_hba_virt *phv = dev->se_hba->hba_ptr;
-	struct Scsi_Host *sh = sd->host;
-	int ret;
-
-	spin_unlock_irq(sh->host_lock);
-	ret = pscsi_add_device_to_list(dev, sd);
-	if (ret)
-		return ret;
-
-	pr_debug("CORE_PSCSI[%d] - Added Type: %s for %d:%d:%d:%llu\n",
-		phv->phv_host_id, scsi_device_type(sd->type), sh->host_no,
-		sd->channel, sd->id, sd->lun);
-	return 0;
-}
-
 static int pscsi_configure_device(struct se_device *dev)
 {
 	struct se_hba *hba = dev->se_hba;
@@ -542,11 +524,8 @@ static int pscsi_configure_device(struct
 		case TYPE_DISK:
 			ret = pscsi_create_type_disk(dev, sd);
 			break;
-		case TYPE_ROM:
-			ret = pscsi_create_type_rom(dev, sd);
-			break;
 		default:
-			ret = pscsi_create_type_other(dev, sd);
+			ret = pscsi_create_type_nondisk(dev, sd);
 			break;
 		}
 
@@ -611,8 +590,7 @@ static void pscsi_free_device(struct se_
 		else if (pdv->pdv_lld_host)
 			scsi_host_put(pdv->pdv_lld_host);
 
-		if ((sd->type == TYPE_DISK) || (sd->type == TYPE_ROM))
-			scsi_device_put(sd);
+		scsi_device_put(sd);
 
 		pdv->pdv_sd = NULL;
 	}
@@ -1088,7 +1066,6 @@ static sector_t pscsi_get_blocks(struct
 	if (pdv->pdv_bd && pdv->pdv_bd->bd_part)
 		return pdv->pdv_bd->bd_part->nr_sects;
 
-	dump_stack();
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/target/target_core_sbc.c linux-libre-4.4.107-gnu/drivers/target/target_core_sbc.c
--- linux-libre-4.4-gnu/drivers/target/target_core_sbc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/target/target_core_sbc.c	2017-12-20 04:05:01.000000000 -0500
@@ -442,6 +442,7 @@ static sense_reason_t compare_and_write_
 					     int *post_ret)
 {
 	struct se_device *dev = cmd->se_dev;
+	sense_reason_t ret = TCM_NO_SENSE;
 
 	/*
 	 * Only set SCF_COMPARE_AND_WRITE_POST to force a response fall-through
@@ -449,9 +450,12 @@ static sense_reason_t compare_and_write_
 	 * sent to the backend driver.
 	 */
 	spin_lock_irq(&cmd->t_state_lock);
-	if ((cmd->transport_state & CMD_T_SENT) && !cmd->scsi_status) {
+	if (cmd->transport_state & CMD_T_SENT) {
 		cmd->se_cmd_flags |= SCF_COMPARE_AND_WRITE_POST;
 		*post_ret = 1;
+
+		if (cmd->scsi_status == SAM_STAT_CHECK_CONDITION)
+			ret = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
 	}
 	spin_unlock_irq(&cmd->t_state_lock);
 
@@ -461,7 +465,7 @@ static sense_reason_t compare_and_write_
 	 */
 	up(&dev->caw_sem);
 
-	return TCM_NO_SENSE;
+	return ret;
 }
 
 static sense_reason_t compare_and_write_callback(struct se_cmd *cmd, bool success,
@@ -494,8 +498,11 @@ static sense_reason_t compare_and_write_
 	 * been failed with a non-zero SCSI status.
 	 */
 	if (cmd->scsi_status) {
-		pr_err("compare_and_write_callback: non zero scsi_status:"
+		pr_debug("compare_and_write_callback: non zero scsi_status:"
 			" 0x%02x\n", cmd->scsi_status);
+		*post_ret = 1;
+		if (cmd->scsi_status == SAM_STAT_CHECK_CONDITION)
+			ret = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
 		goto out;
 	}
 
@@ -594,7 +601,7 @@ static sense_reason_t compare_and_write_
 	cmd->transport_state |= CMD_T_ACTIVE|CMD_T_BUSY|CMD_T_SENT;
 	spin_unlock_irq(&cmd->t_state_lock);
 
-	__target_execute_cmd(cmd);
+	__target_execute_cmd(cmd, false);
 
 	kfree(buf);
 	return ret;
@@ -1092,9 +1099,15 @@ sbc_parse_cdb(struct se_cmd *cmd, struct
 			return ret;
 		break;
 	case VERIFY:
+	case VERIFY_16:
 		size = 0;
-		sectors = transport_get_sectors_10(cdb);
-		cmd->t_task_lba = transport_lba_32(cdb);
+		if (cdb[0] == VERIFY) {
+			sectors = transport_get_sectors_10(cdb);
+			cmd->t_task_lba = transport_lba_32(cdb);
+		} else {
+			sectors = transport_get_sectors_16(cdb);
+			cmd->t_task_lba = transport_lba_64(cdb);
+		}
 		cmd->execute_cmd = sbc_emulate_noop;
 		goto check_lba;
 	case REZERO_UNIT:
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/target/target_core_tmr.c linux-libre-4.4.107-gnu/drivers/target/target_core_tmr.c
--- linux-libre-4.4-gnu/drivers/target/target_core_tmr.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/target/target_core_tmr.c	2017-12-20 04:05:01.000000000 -0500
@@ -68,28 +68,30 @@ void core_tmr_release_req(struct se_tmr_
 
 	if (dev) {
 		spin_lock_irqsave(&dev->se_tmr_lock, flags);
-		list_del(&tmr->tmr_list);
+		list_del_init(&tmr->tmr_list);
 		spin_unlock_irqrestore(&dev->se_tmr_lock, flags);
 	}
 
 	kfree(tmr);
 }
 
-static void core_tmr_handle_tas_abort(
-	struct se_node_acl *tmr_nacl,
-	struct se_cmd *cmd,
-	int tas)
+static int core_tmr_handle_tas_abort(struct se_cmd *cmd, int tas)
 {
-	bool remove = true;
+	unsigned long flags;
+	bool remove = true, send_tas;
 	/*
 	 * TASK ABORTED status (TAS) bit support
 	 */
-	if ((tmr_nacl && (tmr_nacl != cmd->se_sess->se_node_acl)) && tas) {
+	spin_lock_irqsave(&cmd->t_state_lock, flags);
+	send_tas = (cmd->transport_state & CMD_T_TAS);
+	spin_unlock_irqrestore(&cmd->t_state_lock, flags);
+
+	if (send_tas) {
 		remove = false;
 		transport_send_task_abort(cmd);
 	}
 
-	transport_cmd_finish_abort(cmd, remove);
+	return transport_cmd_finish_abort(cmd, remove);
 }
 
 static int target_check_cdb_and_preempt(struct list_head *list,
@@ -107,6 +109,46 @@ static int target_check_cdb_and_preempt(
 	return 1;
 }
 
+static bool __target_check_io_state(struct se_cmd *se_cmd,
+				    struct se_session *tmr_sess, int tas)
+{
+	struct se_session *sess = se_cmd->se_sess;
+
+	assert_spin_locked(&sess->sess_cmd_lock);
+	WARN_ON_ONCE(!irqs_disabled());
+	/*
+	 * If command already reached CMD_T_COMPLETE state within
+	 * target_complete_cmd() or CMD_T_FABRIC_STOP due to shutdown,
+	 * this se_cmd has been passed to fabric driver and will
+	 * not be aborted.
+	 *
+	 * Otherwise, obtain a local se_cmd->cmd_kref now for TMR
+	 * ABORT_TASK + LUN_RESET for CMD_T_ABORTED processing as
+	 * long as se_cmd->cmd_kref is still active unless zero.
+	 */
+	spin_lock(&se_cmd->t_state_lock);
+	if (se_cmd->transport_state & (CMD_T_COMPLETE | CMD_T_FABRIC_STOP)) {
+		pr_debug("Attempted to abort io tag: %llu already complete or"
+			" fabric stop, skipping\n", se_cmd->tag);
+		spin_unlock(&se_cmd->t_state_lock);
+		return false;
+	}
+	if (sess->sess_tearing_down || se_cmd->cmd_wait_set) {
+		pr_debug("Attempted to abort io tag: %llu already shutdown,"
+			" skipping\n", se_cmd->tag);
+		spin_unlock(&se_cmd->t_state_lock);
+		return false;
+	}
+	se_cmd->transport_state |= CMD_T_ABORTED;
+
+	if ((tmr_sess != se_cmd->se_sess) && tas)
+		se_cmd->transport_state |= CMD_T_TAS;
+
+	spin_unlock(&se_cmd->t_state_lock);
+
+	return kref_get_unless_zero(&se_cmd->cmd_kref);
+}
+
 void core_tmr_abort_task(
 	struct se_device *dev,
 	struct se_tmr_req *tmr,
@@ -130,34 +172,21 @@ void core_tmr_abort_task(
 		if (tmr->ref_task_tag != ref_tag)
 			continue;
 
-		if (!kref_get_unless_zero(&se_cmd->cmd_kref))
-			continue;
-
 		printk("ABORT_TASK: Found referenced %s task_tag: %llu\n",
 			se_cmd->se_tfo->get_fabric_name(), ref_tag);
 
-		spin_lock(&se_cmd->t_state_lock);
-		if (se_cmd->transport_state & CMD_T_COMPLETE) {
-			printk("ABORT_TASK: ref_tag: %llu already complete,"
-			       " skipping\n", ref_tag);
-			spin_unlock(&se_cmd->t_state_lock);
+		if (!__target_check_io_state(se_cmd, se_sess, 0)) {
 			spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags);
-
-			target_put_sess_cmd(se_cmd);
-
 			goto out;
 		}
-		se_cmd->transport_state |= CMD_T_ABORTED;
-		spin_unlock(&se_cmd->t_state_lock);
-
 		list_del_init(&se_cmd->se_cmd_list);
 		spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags);
 
 		cancel_work_sync(&se_cmd->work);
 		transport_wait_for_tasks(se_cmd);
 
-		target_put_sess_cmd(se_cmd);
-		transport_cmd_finish_abort(se_cmd, true);
+		if (!transport_cmd_finish_abort(se_cmd, true))
+			target_put_sess_cmd(se_cmd);
 
 		printk("ABORT_TASK: Sending TMR_FUNCTION_COMPLETE for"
 				" ref_tag: %llu\n", ref_tag);
@@ -178,9 +207,11 @@ static void core_tmr_drain_tmr_list(
 	struct list_head *preempt_and_abort_list)
 {
 	LIST_HEAD(drain_tmr_list);
+	struct se_session *sess;
 	struct se_tmr_req *tmr_p, *tmr_pp;
 	struct se_cmd *cmd;
 	unsigned long flags;
+	bool rc;
 	/*
 	 * Release all pending and outgoing TMRs aside from the received
 	 * LUN_RESET tmr..
@@ -206,17 +237,39 @@ static void core_tmr_drain_tmr_list(
 		if (target_check_cdb_and_preempt(preempt_and_abort_list, cmd))
 			continue;
 
+		sess = cmd->se_sess;
+		if (WARN_ON_ONCE(!sess))
+			continue;
+
+		spin_lock(&sess->sess_cmd_lock);
 		spin_lock(&cmd->t_state_lock);
-		if (!(cmd->transport_state & CMD_T_ACTIVE)) {
+		if (!(cmd->transport_state & CMD_T_ACTIVE) ||
+		     (cmd->transport_state & CMD_T_FABRIC_STOP)) {
 			spin_unlock(&cmd->t_state_lock);
+			spin_unlock(&sess->sess_cmd_lock);
 			continue;
 		}
 		if (cmd->t_state == TRANSPORT_ISTATE_PROCESSING) {
 			spin_unlock(&cmd->t_state_lock);
+			spin_unlock(&sess->sess_cmd_lock);
 			continue;
 		}
+		if (sess->sess_tearing_down || cmd->cmd_wait_set) {
+			spin_unlock(&cmd->t_state_lock);
+			spin_unlock(&sess->sess_cmd_lock);
+			continue;
+		}
+		cmd->transport_state |= CMD_T_ABORTED;
 		spin_unlock(&cmd->t_state_lock);
 
+		rc = kref_get_unless_zero(&cmd->cmd_kref);
+		if (!rc) {
+			printk("LUN_RESET TMR: non-zero kref_get_unless_zero\n");
+			spin_unlock(&sess->sess_cmd_lock);
+			continue;
+		}
+		spin_unlock(&sess->sess_cmd_lock);
+
 		list_move_tail(&tmr_p->tmr_list, &drain_tmr_list);
 	}
 	spin_unlock_irqrestore(&dev->se_tmr_lock, flags);
@@ -230,20 +283,26 @@ static void core_tmr_drain_tmr_list(
 			(preempt_and_abort_list) ? "Preempt" : "", tmr_p,
 			tmr_p->function, tmr_p->response, cmd->t_state);
 
-		transport_cmd_finish_abort(cmd, 1);
+		cancel_work_sync(&cmd->work);
+		transport_wait_for_tasks(cmd);
+
+		if (!transport_cmd_finish_abort(cmd, 1))
+			target_put_sess_cmd(cmd);
 	}
 }
 
 static void core_tmr_drain_state_list(
 	struct se_device *dev,
 	struct se_cmd *prout_cmd,
-	struct se_node_acl *tmr_nacl,
+	struct se_session *tmr_sess,
 	int tas,
 	struct list_head *preempt_and_abort_list)
 {
 	LIST_HEAD(drain_task_list);
+	struct se_session *sess;
 	struct se_cmd *cmd, *next;
 	unsigned long flags;
+	int rc;
 
 	/*
 	 * Complete outstanding commands with TASK_ABORTED SAM status.
@@ -282,6 +341,16 @@ static void core_tmr_drain_state_list(
 		if (prout_cmd == cmd)
 			continue;
 
+		sess = cmd->se_sess;
+		if (WARN_ON_ONCE(!sess))
+			continue;
+
+		spin_lock(&sess->sess_cmd_lock);
+		rc = __target_check_io_state(cmd, tmr_sess, tas);
+		spin_unlock(&sess->sess_cmd_lock);
+		if (!rc)
+			continue;
+
 		list_move_tail(&cmd->state_list, &drain_task_list);
 		cmd->state_active = false;
 	}
@@ -289,7 +358,7 @@ static void core_tmr_drain_state_list(
 
 	while (!list_empty(&drain_task_list)) {
 		cmd = list_entry(drain_task_list.next, struct se_cmd, state_list);
-		list_del(&cmd->state_list);
+		list_del_init(&cmd->state_list);
 
 		pr_debug("LUN_RESET: %s cmd: %p"
 			" ITT/CmdSN: 0x%08llx/0x%08x, i_state: %d, t_state: %d"
@@ -313,16 +382,11 @@ static void core_tmr_drain_state_list(
 		 * loop above, but we do it down here given that
 		 * cancel_work_sync may block.
 		 */
-		if (cmd->t_state == TRANSPORT_COMPLETE)
-			cancel_work_sync(&cmd->work);
-
-		spin_lock_irqsave(&cmd->t_state_lock, flags);
-		target_stop_cmd(cmd, &flags);
-
-		cmd->transport_state |= CMD_T_ABORTED;
-		spin_unlock_irqrestore(&cmd->t_state_lock, flags);
+		cancel_work_sync(&cmd->work);
+		transport_wait_for_tasks(cmd);
 
-		core_tmr_handle_tas_abort(tmr_nacl, cmd, tas);
+		if (!core_tmr_handle_tas_abort(cmd, tas))
+			target_put_sess_cmd(cmd);
 	}
 }
 
@@ -334,6 +398,7 @@ int core_tmr_lun_reset(
 {
 	struct se_node_acl *tmr_nacl = NULL;
 	struct se_portal_group *tmr_tpg = NULL;
+	struct se_session *tmr_sess = NULL;
 	int tas;
         /*
 	 * TASK_ABORTED status bit, this is configurable via ConfigFS
@@ -352,8 +417,9 @@ int core_tmr_lun_reset(
 	 * or struct se_device passthrough..
 	 */
 	if (tmr && tmr->task_cmd && tmr->task_cmd->se_sess) {
-		tmr_nacl = tmr->task_cmd->se_sess->se_node_acl;
-		tmr_tpg = tmr->task_cmd->se_sess->se_tpg;
+		tmr_sess = tmr->task_cmd->se_sess;
+		tmr_nacl = tmr_sess->se_node_acl;
+		tmr_tpg = tmr_sess->se_tpg;
 		if (tmr_nacl && tmr_tpg) {
 			pr_debug("LUN_RESET: TMR caller fabric: %s"
 				" initiator port %s\n",
@@ -366,7 +432,7 @@ int core_tmr_lun_reset(
 		dev->transport->name, tas);
 
 	core_tmr_drain_tmr_list(dev, tmr, preempt_and_abort_list);
-	core_tmr_drain_state_list(dev, prout_cmd, tmr_nacl, tas,
+	core_tmr_drain_state_list(dev, prout_cmd, tmr_sess, tas,
 				preempt_and_abort_list);
 
 	/*
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/target/target_core_tpg.c linux-libre-4.4.107-gnu/drivers/target/target_core_tpg.c
--- linux-libre-4.4-gnu/drivers/target/target_core_tpg.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/target/target_core_tpg.c	2017-12-20 04:05:01.000000000 -0500
@@ -75,9 +75,21 @@ struct se_node_acl *core_tpg_get_initiat
 	unsigned char *initiatorname)
 {
 	struct se_node_acl *acl;
-
+	/*
+	 * Obtain se_node_acl->acl_kref using fabric driver provided
+	 * initiatorname[] during node acl endpoint lookup driven by
+	 * new se_session login.
+	 *
+	 * The reference is held until se_session shutdown -> release
+	 * occurs via fabric driver invoked transport_deregister_session()
+	 * or transport_free_session() code.
+	 */
 	mutex_lock(&tpg->acl_node_mutex);
 	acl = __core_tpg_get_initiator_node_acl(tpg, initiatorname);
+	if (acl) {
+		if (!kref_get_unless_zero(&acl->acl_kref))
+			acl = NULL;
+	}
 	mutex_unlock(&tpg->acl_node_mutex);
 
 	return acl;
@@ -157,28 +169,25 @@ void core_tpg_add_node_to_devs(
 	mutex_unlock(&tpg->tpg_lun_mutex);
 }
 
-/*      core_set_queue_depth_for_node():
- *
- *
- */
-static int core_set_queue_depth_for_node(
-	struct se_portal_group *tpg,
-	struct se_node_acl *acl)
+static void
+target_set_nacl_queue_depth(struct se_portal_group *tpg,
+			    struct se_node_acl *acl, u32 queue_depth)
 {
+	acl->queue_depth = queue_depth;
+
 	if (!acl->queue_depth) {
-		pr_err("Queue depth for %s Initiator Node: %s is 0,"
+		pr_warn("Queue depth for %s Initiator Node: %s is 0,"
 			"defaulting to 1.\n", tpg->se_tpg_tfo->get_fabric_name(),
 			acl->initiatorname);
 		acl->queue_depth = 1;
 	}
-
-	return 0;
 }
 
 static struct se_node_acl *target_alloc_node_acl(struct se_portal_group *tpg,
 		const unsigned char *initiatorname)
 {
 	struct se_node_acl *acl;
+	u32 queue_depth;
 
 	acl = kzalloc(max(sizeof(*acl), tpg->se_tpg_tfo->node_acl_size),
 			GFP_KERNEL);
@@ -193,24 +202,20 @@ static struct se_node_acl *target_alloc_
 	spin_lock_init(&acl->nacl_sess_lock);
 	mutex_init(&acl->lun_entry_mutex);
 	atomic_set(&acl->acl_pr_ref_count, 0);
+
 	if (tpg->se_tpg_tfo->tpg_get_default_depth)
-		acl->queue_depth = tpg->se_tpg_tfo->tpg_get_default_depth(tpg);
+		queue_depth = tpg->se_tpg_tfo->tpg_get_default_depth(tpg);
 	else
-		acl->queue_depth = 1;
+		queue_depth = 1;
+	target_set_nacl_queue_depth(tpg, acl, queue_depth);
+
 	snprintf(acl->initiatorname, TRANSPORT_IQN_LEN, "%s", initiatorname);
 	acl->se_tpg = tpg;
 	acl->acl_index = scsi_get_new_index(SCSI_AUTH_INTR_INDEX);
 
 	tpg->se_tpg_tfo->set_default_node_attributes(acl);
 
-	if (core_set_queue_depth_for_node(tpg, acl) < 0)
-		goto out_free_acl;
-
 	return acl;
-
-out_free_acl:
-	kfree(acl);
-	return NULL;
 }
 
 static void target_add_node_acl(struct se_node_acl *acl)
@@ -232,6 +237,25 @@ static void target_add_node_acl(struct s
 		acl->initiatorname);
 }
 
+bool target_tpg_has_node_acl(struct se_portal_group *tpg,
+			     const char *initiatorname)
+{
+	struct se_node_acl *acl;
+	bool found = false;
+
+	mutex_lock(&tpg->acl_node_mutex);
+	list_for_each_entry(acl, &tpg->acl_node_list, acl_list) {
+		if (!strcmp(acl->initiatorname, initiatorname)) {
+			found = true;
+			break;
+		}
+	}
+	mutex_unlock(&tpg->acl_node_mutex);
+
+	return found;
+}
+EXPORT_SYMBOL(target_tpg_has_node_acl);
+
 struct se_node_acl *core_tpg_check_initiator_node_acl(
 	struct se_portal_group *tpg,
 	unsigned char *initiatorname)
@@ -248,6 +272,15 @@ struct se_node_acl *core_tpg_check_initi
 	acl = target_alloc_node_acl(tpg, initiatorname);
 	if (!acl)
 		return NULL;
+	/*
+	 * When allocating a dynamically generated node_acl, go ahead
+	 * and take the extra kref now before returning to the fabric
+	 * driver caller.
+	 *
+	 * Note this reference will be released at session shutdown
+	 * time within transport_free_session() code.
+	 */
+	kref_get(&acl->acl_kref);
 	acl->dynamic_node_acl = 1;
 
 	/*
@@ -317,7 +350,7 @@ void core_tpg_del_initiator_node_acl(str
 	if (acl->dynamic_node_acl) {
 		acl->dynamic_node_acl = 0;
 	}
-	list_del(&acl->acl_list);
+	list_del_init(&acl->acl_list);
 	tpg->num_node_acls--;
 	mutex_unlock(&tpg->acl_node_mutex);
 
@@ -329,7 +362,8 @@ void core_tpg_del_initiator_node_acl(str
 		if (sess->sess_tearing_down != 0)
 			continue;
 
-		target_get_session(sess);
+		if (!target_get_session(sess))
+			continue;
 		list_move(&sess->sess_acl_list, &sess_list);
 	}
 	spin_unlock_irqrestore(&acl->nacl_sess_lock, flags);
@@ -366,108 +400,52 @@ void core_tpg_del_initiator_node_acl(str
  *
  */
 int core_tpg_set_initiator_node_queue_depth(
-	struct se_portal_group *tpg,
-	unsigned char *initiatorname,
-	u32 queue_depth,
-	int force)
+	struct se_node_acl *acl,
+	u32 queue_depth)
 {
-	struct se_session *sess, *init_sess = NULL;
-	struct se_node_acl *acl;
+	LIST_HEAD(sess_list);
+	struct se_portal_group *tpg = acl->se_tpg;
+	struct se_session *sess, *sess_tmp;
 	unsigned long flags;
-	int dynamic_acl = 0;
-
-	mutex_lock(&tpg->acl_node_mutex);
-	acl = __core_tpg_get_initiator_node_acl(tpg, initiatorname);
-	if (!acl) {
-		pr_err("Access Control List entry for %s Initiator"
-			" Node %s does not exists for TPG %hu, ignoring"
-			" request.\n", tpg->se_tpg_tfo->get_fabric_name(),
-			initiatorname, tpg->se_tpg_tfo->tpg_get_tag(tpg));
-		mutex_unlock(&tpg->acl_node_mutex);
-		return -ENODEV;
-	}
-	if (acl->dynamic_node_acl) {
-		acl->dynamic_node_acl = 0;
-		dynamic_acl = 1;
-	}
-	mutex_unlock(&tpg->acl_node_mutex);
-
-	spin_lock_irqsave(&tpg->session_lock, flags);
-	list_for_each_entry(sess, &tpg->tpg_sess_list, sess_list) {
-		if (sess->se_node_acl != acl)
-			continue;
-
-		if (!force) {
-			pr_err("Unable to change queue depth for %s"
-				" Initiator Node: %s while session is"
-				" operational.  To forcefully change the queue"
-				" depth and force session reinstatement"
-				" use the \"force=1\" parameter.\n",
-				tpg->se_tpg_tfo->get_fabric_name(), initiatorname);
-			spin_unlock_irqrestore(&tpg->session_lock, flags);
-
-			mutex_lock(&tpg->acl_node_mutex);
-			if (dynamic_acl)
-				acl->dynamic_node_acl = 1;
-			mutex_unlock(&tpg->acl_node_mutex);
-			return -EEXIST;
-		}
-		/*
-		 * Determine if the session needs to be closed by our context.
-		 */
-		if (!tpg->se_tpg_tfo->shutdown_session(sess))
-			continue;
-
-		init_sess = sess;
-		break;
-	}
+	int rc;
 
 	/*
 	 * User has requested to change the queue depth for a Initiator Node.
 	 * Change the value in the Node's struct se_node_acl, and call
-	 * core_set_queue_depth_for_node() to add the requested queue depth.
-	 *
-	 * Finally call  tpg->se_tpg_tfo->close_session() to force session
-	 * reinstatement to occur if there is an active session for the
-	 * $FABRIC_MOD Initiator Node in question.
+	 * target_set_nacl_queue_depth() to set the new queue depth.
 	 */
-	acl->queue_depth = queue_depth;
+	target_set_nacl_queue_depth(tpg, acl, queue_depth);
+
+	spin_lock_irqsave(&acl->nacl_sess_lock, flags);
+	list_for_each_entry_safe(sess, sess_tmp, &acl->acl_sess_list,
+				 sess_acl_list) {
+		if (sess->sess_tearing_down != 0)
+			continue;
+		if (!target_get_session(sess))
+			continue;
+		spin_unlock_irqrestore(&acl->nacl_sess_lock, flags);
 
-	if (core_set_queue_depth_for_node(tpg, acl) < 0) {
-		spin_unlock_irqrestore(&tpg->session_lock, flags);
 		/*
-		 * Force session reinstatement if
-		 * core_set_queue_depth_for_node() failed, because we assume
-		 * the $FABRIC_MOD has already the set session reinstatement
-		 * bit from tpg->se_tpg_tfo->shutdown_session() called above.
+		 * Finally call tpg->se_tpg_tfo->close_session() to force session
+		 * reinstatement to occur if there is an active session for the
+		 * $FABRIC_MOD Initiator Node in question.
 		 */
-		if (init_sess)
-			tpg->se_tpg_tfo->close_session(init_sess);
-
-		mutex_lock(&tpg->acl_node_mutex);
-		if (dynamic_acl)
-			acl->dynamic_node_acl = 1;
-		mutex_unlock(&tpg->acl_node_mutex);
-		return -EINVAL;
+		rc = tpg->se_tpg_tfo->shutdown_session(sess);
+		target_put_session(sess);
+		if (!rc) {
+			spin_lock_irqsave(&acl->nacl_sess_lock, flags);
+			continue;
+		}
+		target_put_session(sess);
+		spin_lock_irqsave(&acl->nacl_sess_lock, flags);
 	}
-	spin_unlock_irqrestore(&tpg->session_lock, flags);
-	/*
-	 * If the $FABRIC_MOD session for the Initiator Node ACL exists,
-	 * forcefully shutdown the $FABRIC_MOD session/nexus.
-	 */
-	if (init_sess)
-		tpg->se_tpg_tfo->close_session(init_sess);
+	spin_unlock_irqrestore(&acl->nacl_sess_lock, flags);
 
 	pr_debug("Successfully changed queue depth to: %d for Initiator"
-		" Node: %s on %s Target Portal Group: %u\n", queue_depth,
-		initiatorname, tpg->se_tpg_tfo->get_fabric_name(),
+		" Node: %s on %s Target Portal Group: %u\n", acl->queue_depth,
+		acl->initiatorname, tpg->se_tpg_tfo->get_fabric_name(),
 		tpg->se_tpg_tfo->tpg_get_tag(tpg));
 
-	mutex_lock(&tpg->acl_node_mutex);
-	if (dynamic_acl)
-		acl->dynamic_node_acl = 1;
-	mutex_unlock(&tpg->acl_node_mutex);
-
 	return 0;
 }
 EXPORT_SYMBOL(core_tpg_set_initiator_node_queue_depth);
@@ -499,7 +477,7 @@ static void core_tpg_lun_ref_release(str
 {
 	struct se_lun *lun = container_of(ref, struct se_lun, lun_ref);
 
-	complete(&lun->lun_ref_comp);
+	complete(&lun->lun_shutdown_comp);
 }
 
 int core_tpg_register(
@@ -594,7 +572,7 @@ int core_tpg_deregister(struct se_portal
 	 * in transport_deregister_session().
 	 */
 	list_for_each_entry_safe(nacl, nacl_tmp, &node_list, acl_list) {
-		list_del(&nacl->acl_list);
+		list_del_init(&nacl->acl_list);
 		se_tpg->num_node_acls--;
 
 		core_tpg_wait_for_nacl_pr_ref(nacl);
@@ -626,6 +604,7 @@ struct se_lun *core_tpg_alloc_lun(
 	lun->lun_link_magic = SE_LUN_LINK_MAGIC;
 	atomic_set(&lun->lun_acl_count, 0);
 	init_completion(&lun->lun_ref_comp);
+	init_completion(&lun->lun_shutdown_comp);
 	INIT_LIST_HEAD(&lun->lun_deve_list);
 	INIT_LIST_HEAD(&lun->lun_dev_link);
 	atomic_set(&lun->lun_tg_pt_secondary_offline, 0);
@@ -694,6 +673,8 @@ void core_tpg_remove_lun(
 	 */
 	struct se_device *dev = rcu_dereference_raw(lun->lun_se_dev);
 
+	lun->lun_shutdown = true;
+
 	core_clear_lun_from_tpg(lun, tpg);
 	/*
 	 * Wait for any active I/O references to percpu se_lun->lun_ref to
@@ -715,6 +696,8 @@ void core_tpg_remove_lun(
 	}
 	if (!(dev->se_hba->hba_flags & HBA_FLAGS_INTERNAL_USE))
 		hlist_del_rcu(&lun->link);
+
+	lun->lun_shutdown = false;
 	mutex_unlock(&tpg->tpg_lun_mutex);
 
 	percpu_ref_exit(&lun->lun_ref);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/target/target_core_transport.c linux-libre-4.4.107-gnu/drivers/target/target_core_transport.c
--- linux-libre-4.4-gnu/drivers/target/target_core_transport.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/target/target_core_transport.c	2017-12-20 04:05:01.000000000 -0500
@@ -341,7 +341,6 @@ void __transport_register_session(
 					&buf[0], PR_REG_ISID_LEN);
 			se_sess->sess_bin_isid = get_unaligned_be64(&buf[0]);
 		}
-		kref_get(&se_nacl->acl_kref);
 
 		spin_lock_irq(&se_nacl->nacl_sess_lock);
 		/*
@@ -384,9 +383,9 @@ static void target_release_session(struc
 	se_tpg->se_tpg_tfo->close_session(se_sess);
 }
 
-void target_get_session(struct se_session *se_sess)
+int target_get_session(struct se_session *se_sess)
 {
-	kref_get(&se_sess->sess_kref);
+	return kref_get_unless_zero(&se_sess->sess_kref);
 }
 EXPORT_SYMBOL(target_get_session);
 
@@ -424,14 +423,27 @@ static void target_complete_nacl(struct
 {
 	struct se_node_acl *nacl = container_of(kref,
 				struct se_node_acl, acl_kref);
+	struct se_portal_group *se_tpg = nacl->se_tpg;
 
-	complete(&nacl->acl_free_comp);
+	if (!nacl->dynamic_stop) {
+		complete(&nacl->acl_free_comp);
+		return;
+	}
+
+	mutex_lock(&se_tpg->acl_node_mutex);
+	list_del_init(&nacl->acl_list);
+	mutex_unlock(&se_tpg->acl_node_mutex);
+
+	core_tpg_wait_for_nacl_pr_ref(nacl);
+	core_free_device_list_for_node(nacl, se_tpg);
+	kfree(nacl);
 }
 
 void target_put_nacl(struct se_node_acl *nacl)
 {
 	kref_put(&nacl->acl_kref, target_complete_nacl);
 }
+EXPORT_SYMBOL(target_put_nacl);
 
 void transport_deregister_session_configfs(struct se_session *se_sess)
 {
@@ -464,6 +476,42 @@ EXPORT_SYMBOL(transport_deregister_sessi
 
 void transport_free_session(struct se_session *se_sess)
 {
+	struct se_node_acl *se_nacl = se_sess->se_node_acl;
+
+	/*
+	 * Drop the se_node_acl->nacl_kref obtained from within
+	 * core_tpg_get_initiator_node_acl().
+	 */
+	if (se_nacl) {
+		struct se_portal_group *se_tpg = se_nacl->se_tpg;
+		const struct target_core_fabric_ops *se_tfo = se_tpg->se_tpg_tfo;
+		unsigned long flags;
+
+		se_sess->se_node_acl = NULL;
+
+		/*
+		 * Also determine if we need to drop the extra ->cmd_kref if
+		 * it had been previously dynamically generated, and
+		 * the endpoint is not caching dynamic ACLs.
+		 */
+		mutex_lock(&se_tpg->acl_node_mutex);
+		if (se_nacl->dynamic_node_acl &&
+		    !se_tfo->tpg_check_demo_mode_cache(se_tpg)) {
+			spin_lock_irqsave(&se_nacl->nacl_sess_lock, flags);
+			if (list_empty(&se_nacl->acl_sess_list))
+				se_nacl->dynamic_stop = true;
+			spin_unlock_irqrestore(&se_nacl->nacl_sess_lock, flags);
+
+			if (se_nacl->dynamic_stop)
+				list_del_init(&se_nacl->acl_list);
+		}
+		mutex_unlock(&se_tpg->acl_node_mutex);
+
+		if (se_nacl->dynamic_stop)
+			target_put_nacl(se_nacl);
+
+		target_put_nacl(se_nacl);
+	}
 	if (se_sess->sess_cmd_map) {
 		percpu_ida_destroy(&se_sess->sess_tag_pool);
 		kvfree(se_sess->sess_cmd_map);
@@ -475,16 +523,12 @@ EXPORT_SYMBOL(transport_free_session);
 void transport_deregister_session(struct se_session *se_sess)
 {
 	struct se_portal_group *se_tpg = se_sess->se_tpg;
-	const struct target_core_fabric_ops *se_tfo;
-	struct se_node_acl *se_nacl;
 	unsigned long flags;
-	bool comp_nacl = true, drop_nacl = false;
 
 	if (!se_tpg) {
 		transport_free_session(se_sess);
 		return;
 	}
-	se_tfo = se_tpg->se_tpg_tfo;
 
 	spin_lock_irqsave(&se_tpg->session_lock, flags);
 	list_del(&se_sess->sess_list);
@@ -492,45 +536,21 @@ void transport_deregister_session(struct
 	se_sess->fabric_sess_ptr = NULL;
 	spin_unlock_irqrestore(&se_tpg->session_lock, flags);
 
-	/*
-	 * Determine if we need to do extra work for this initiator node's
-	 * struct se_node_acl if it had been previously dynamically generated.
-	 */
-	se_nacl = se_sess->se_node_acl;
-
-	mutex_lock(&se_tpg->acl_node_mutex);
-	if (se_nacl && se_nacl->dynamic_node_acl) {
-		if (!se_tfo->tpg_check_demo_mode_cache(se_tpg)) {
-			list_del(&se_nacl->acl_list);
-			se_tpg->num_node_acls--;
-			drop_nacl = true;
-		}
-	}
-	mutex_unlock(&se_tpg->acl_node_mutex);
-
-	if (drop_nacl) {
-		core_tpg_wait_for_nacl_pr_ref(se_nacl);
-		core_free_device_list_for_node(se_nacl, se_tpg);
-		kfree(se_nacl);
-		comp_nacl = false;
-	}
 	pr_debug("TARGET_CORE[%s]: Deregistered fabric_sess\n",
 		se_tpg->se_tpg_tfo->get_fabric_name());
 	/*
 	 * If last kref is dropping now for an explicit NodeACL, awake sleeping
 	 * ->acl_free_comp caller to wakeup configfs se_node_acl->acl_group
-	 * removal context.
+	 * removal context from within transport_free_session() code.
+	 *
+	 * For dynamic ACL, target_put_nacl() uses target_complete_nacl()
+	 * to release all remaining generate_node_acl=1 created ACL resources.
 	 */
-	if (se_nacl && comp_nacl)
-		target_put_nacl(se_nacl);
 
 	transport_free_session(se_sess);
 }
 EXPORT_SYMBOL(transport_deregister_session);
 
-/*
- * Called with cmd->t_state_lock held.
- */
 static void target_remove_from_state_list(struct se_cmd *cmd)
 {
 	struct se_device *dev = cmd->se_dev;
@@ -555,10 +575,6 @@ static int transport_cmd_check_stop(stru
 {
 	unsigned long flags;
 
-	spin_lock_irqsave(&cmd->t_state_lock, flags);
-	if (write_pending)
-		cmd->t_state = TRANSPORT_WRITE_PENDING;
-
 	if (remove_from_lists) {
 		target_remove_from_state_list(cmd);
 
@@ -568,6 +584,10 @@ static int transport_cmd_check_stop(stru
 		cmd->se_lun = NULL;
 	}
 
+	spin_lock_irqsave(&cmd->t_state_lock, flags);
+	if (write_pending)
+		cmd->t_state = TRANSPORT_WRITE_PENDING;
+
 	/*
 	 * Determine if frontend context caller is requesting the stopping of
 	 * this command for frontend exceptions.
@@ -619,8 +639,11 @@ static void transport_lun_remove_cmd(str
 		percpu_ref_put(&lun->lun_ref);
 }
 
-void transport_cmd_finish_abort(struct se_cmd *cmd, int remove)
+int transport_cmd_finish_abort(struct se_cmd *cmd, int remove)
 {
+	bool ack_kref = (cmd->se_cmd_flags & SCF_ACK_KREF);
+	int ret = 0;
+
 	if (cmd->se_cmd_flags & SCF_SE_LUN_CMD)
 		transport_lun_remove_cmd(cmd);
 	/*
@@ -631,9 +654,11 @@ void transport_cmd_finish_abort(struct s
 		cmd->se_tfo->aborted_task(cmd);
 
 	if (transport_cmd_check_stop_to_fabric(cmd))
-		return;
-	if (remove)
-		transport_put_cmd(cmd);
+		return 1;
+	if (remove && ack_kref)
+		ret = transport_put_cmd(cmd);
+
+	return ret;
 }
 
 static void target_complete_failure_work(struct work_struct *work)
@@ -700,9 +725,18 @@ void target_complete_cmd(struct se_cmd *
 	 * Check for case where an explicit ABORT_TASK has been received
 	 * and transport_wait_for_tasks() will be waiting for completion..
 	 */
-	if (cmd->transport_state & CMD_T_ABORTED &&
+	if (cmd->transport_state & CMD_T_ABORTED ||
 	    cmd->transport_state & CMD_T_STOP) {
 		spin_unlock_irqrestore(&cmd->t_state_lock, flags);
+		/*
+		 * If COMPARE_AND_WRITE was stopped by __transport_wait_for_tasks(),
+		 * release se_device->caw_sem obtained by sbc_compare_and_write()
+		 * since target_complete_ok_work() or target_complete_failure_work()
+		 * won't be called to invoke the normal CAW completion callbacks.
+		 */
+		if (cmd->se_cmd_flags & SCF_COMPARE_AND_WRITE) {
+			up(&dev->caw_sem);
+		}
 		complete_all(&cmd->t_transport_stop_comp);
 		return;
 	} else if (!success) {
@@ -1132,15 +1166,28 @@ target_cmd_size_check(struct se_cmd *cmd
 	if (cmd->unknown_data_length) {
 		cmd->data_length = size;
 	} else if (size != cmd->data_length) {
-		pr_warn("TARGET_CORE[%s]: Expected Transfer Length:"
+		pr_warn_ratelimited("TARGET_CORE[%s]: Expected Transfer Length:"
 			" %u does not match SCSI CDB Length: %u for SAM Opcode:"
 			" 0x%02x\n", cmd->se_tfo->get_fabric_name(),
 				cmd->data_length, size, cmd->t_task_cdb[0]);
 
-		if (cmd->data_direction == DMA_TO_DEVICE &&
-		    cmd->se_cmd_flags & SCF_SCSI_DATA_CDB) {
-			pr_err("Rejecting underflow/overflow WRITE data\n");
-			return TCM_INVALID_CDB_FIELD;
+		if (cmd->data_direction == DMA_TO_DEVICE) {
+			if (cmd->se_cmd_flags & SCF_SCSI_DATA_CDB) {
+				pr_err_ratelimited("Rejecting underflow/overflow"
+						   " for WRITE data CDB\n");
+				return TCM_INVALID_CDB_FIELD;
+			}
+			/*
+			 * Some fabric drivers like iscsi-target still expect to
+			 * always reject overflow writes.  Reject this case until
+			 * full fabric driver level support for overflow writes
+			 * is introduced tree-wide.
+			 */
+			if (size > cmd->data_length) {
+				pr_err_ratelimited("Rejecting overflow for"
+						   " WRITE control CDB\n");
+				return TCM_INVALID_CDB_FIELD;
+			}
 		}
 		/*
 		 * Reject READ_* or WRITE_* with overflow/underflow for
@@ -1271,23 +1318,6 @@ target_setup_cmd_from_cdb(struct se_cmd
 
 	trace_target_sequencer_start(cmd);
 
-	/*
-	 * Check for an existing UNIT ATTENTION condition
-	 */
-	ret = target_scsi3_ua_check(cmd);
-	if (ret)
-		return ret;
-
-	ret = target_alua_state_check(cmd);
-	if (ret)
-		return ret;
-
-	ret = target_check_reservation(cmd);
-	if (ret) {
-		cmd->scsi_status = SAM_STAT_RESERVATION_CONFLICT;
-		return ret;
-	}
-
 	ret = dev->transport->parse_cdb(cmd);
 	if (ret == TCM_UNSUPPORTED_SCSI_OPCODE)
 		pr_warn_ratelimited("%s/%s: Unsupported SCSI Opcode 0x%02x, sending CHECK_CONDITION.\n",
@@ -1698,6 +1728,7 @@ void transport_generic_request_failure(s
 	case TCM_LOGICAL_BLOCK_GUARD_CHECK_FAILED:
 	case TCM_LOGICAL_BLOCK_APP_TAG_CHECK_FAILED:
 	case TCM_LOGICAL_BLOCK_REF_TAG_CHECK_FAILED:
+	case TCM_COPY_TARGET_DEVICE_NOT_REACHABLE:
 		break;
 	case TCM_OUT_OF_RESOURCES:
 		sense_reason = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
@@ -1750,20 +1781,45 @@ queue_full:
 }
 EXPORT_SYMBOL(transport_generic_request_failure);
 
-void __target_execute_cmd(struct se_cmd *cmd)
+void __target_execute_cmd(struct se_cmd *cmd, bool do_checks)
 {
 	sense_reason_t ret;
 
-	if (cmd->execute_cmd) {
-		ret = cmd->execute_cmd(cmd);
-		if (ret) {
-			spin_lock_irq(&cmd->t_state_lock);
-			cmd->transport_state &= ~(CMD_T_BUSY|CMD_T_SENT);
-			spin_unlock_irq(&cmd->t_state_lock);
+	if (!cmd->execute_cmd) {
+		ret = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+		goto err;
+	}
+	if (do_checks) {
+		/*
+		 * Check for an existing UNIT ATTENTION condition after
+		 * target_handle_task_attr() has done SAM task attr
+		 * checking, and possibly have already defered execution
+		 * out to target_restart_delayed_cmds() context.
+		 */
+		ret = target_scsi3_ua_check(cmd);
+		if (ret)
+			goto err;
 
-			transport_generic_request_failure(cmd, ret);
+		ret = target_alua_state_check(cmd);
+		if (ret)
+			goto err;
+
+		ret = target_check_reservation(cmd);
+		if (ret) {
+			cmd->scsi_status = SAM_STAT_RESERVATION_CONFLICT;
+			goto err;
 		}
 	}
+
+	ret = cmd->execute_cmd(cmd);
+	if (!ret)
+		return;
+err:
+	spin_lock_irq(&cmd->t_state_lock);
+	cmd->transport_state &= ~(CMD_T_BUSY|CMD_T_SENT);
+	spin_unlock_irq(&cmd->t_state_lock);
+
+	transport_generic_request_failure(cmd, ret);
 }
 
 static int target_write_prot_action(struct se_cmd *cmd)
@@ -1808,6 +1864,8 @@ static bool target_handle_task_attr(stru
 	if (dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH)
 		return false;
 
+	cmd->se_cmd_flags |= SCF_TASK_ATTR_SET;
+
 	/*
 	 * Check for the existence of HEAD_OF_QUEUE, and if true return 1
 	 * to allow the passed struct se_cmd list of tasks to the front of the list.
@@ -1850,19 +1908,21 @@ static bool target_handle_task_attr(stru
 	return true;
 }
 
+static int __transport_check_aborted_status(struct se_cmd *, int);
+
 void target_execute_cmd(struct se_cmd *cmd)
 {
 	/*
-	 * If the received CDB has aleady been aborted stop processing it here.
-	 */
-	if (transport_check_aborted_status(cmd, 1))
-		return;
-
-	/*
 	 * Determine if frontend context caller is requesting the stopping of
 	 * this command for frontend exceptions.
+	 *
+	 * If the received CDB has aleady been aborted stop processing it here.
 	 */
 	spin_lock_irq(&cmd->t_state_lock);
+	if (__transport_check_aborted_status(cmd, 1)) {
+		spin_unlock_irq(&cmd->t_state_lock);
+		return;
+	}
 	if (cmd->transport_state & CMD_T_STOP) {
 		pr_debug("%s:%d CMD_T_STOP for ITT: 0x%08llx\n",
 			__func__, __LINE__, cmd->tag);
@@ -1886,7 +1946,7 @@ void target_execute_cmd(struct se_cmd *c
 		return;
 	}
 
-	__target_execute_cmd(cmd);
+	__target_execute_cmd(cmd, true);
 }
 EXPORT_SYMBOL(target_execute_cmd);
 
@@ -1910,7 +1970,9 @@ static void target_restart_delayed_cmds(
 		list_del(&cmd->se_delayed_node);
 		spin_unlock(&dev->delayed_cmd_lock);
 
-		__target_execute_cmd(cmd);
+		cmd->transport_state |= CMD_T_SENT;
+
+		__target_execute_cmd(cmd, true);
 
 		if (cmd->sam_task_attr == TCM_ORDERED_TAG)
 			break;
@@ -1928,6 +1990,9 @@ static void transport_complete_task_attr
 	if (dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH)
 		return;
 
+	if (!(cmd->se_cmd_flags & SCF_TASK_ATTR_SET))
+		goto restart;
+
 	if (cmd->sam_task_attr == TCM_SIMPLE_TAG) {
 		atomic_dec_mb(&dev->simple_cmds);
 		dev->dev_cur_ordered_id++;
@@ -1944,7 +2009,9 @@ static void transport_complete_task_attr
 		pr_debug("Incremented dev_cur_ordered_id: %u for ORDERED\n",
 			 dev->dev_cur_ordered_id);
 	}
+	cmd->se_cmd_flags &= ~SCF_TASK_ATTR_SET;
 
+restart:
 	target_restart_delayed_cmds(dev);
 }
 
@@ -2213,20 +2280,14 @@ static inline void transport_free_pages(
 }
 
 /**
- * transport_release_cmd - free a command
- * @cmd:       command to free
+ * transport_put_cmd - release a reference to a command
+ * @cmd:       command to release
  *
- * This routine unconditionally frees a command, and reference counting
- * or list removal must be done in the caller.
+ * This routine releases our reference to the command and frees it if possible.
  */
-static int transport_release_cmd(struct se_cmd *cmd)
+static int transport_put_cmd(struct se_cmd *cmd)
 {
 	BUG_ON(!cmd->se_tfo);
-
-	if (cmd->se_cmd_flags & SCF_SCSI_TMR_CDB)
-		core_tmr_release_req(cmd->se_tmr_req);
-	if (cmd->t_task_cdb != cmd->__t_task_cdb)
-		kfree(cmd->t_task_cdb);
 	/*
 	 * If this cmd has been setup with target_get_sess_cmd(), drop
 	 * the kref and call ->release_cmd() in kref callback.
@@ -2234,18 +2295,6 @@ static int transport_release_cmd(struct
 	return target_put_sess_cmd(cmd);
 }
 
-/**
- * transport_put_cmd - release a reference to a command
- * @cmd:       command to release
- *
- * This routine releases our reference to the command and frees it if possible.
- */
-static int transport_put_cmd(struct se_cmd *cmd)
-{
-	transport_free_pages(cmd);
-	return transport_release_cmd(cmd);
-}
-
 void *transport_kmap_data_sg(struct se_cmd *cmd)
 {
 	struct scatterlist *sg = cmd->t_data_sg;
@@ -2441,34 +2490,58 @@ static void transport_write_pending_qf(s
 	}
 }
 
-int transport_generic_free_cmd(struct se_cmd *cmd, int wait_for_tasks)
+static bool
+__transport_wait_for_tasks(struct se_cmd *, bool, bool *, bool *,
+			   unsigned long *flags);
+
+static void target_wait_free_cmd(struct se_cmd *cmd, bool *aborted, bool *tas)
 {
 	unsigned long flags;
+
+	spin_lock_irqsave(&cmd->t_state_lock, flags);
+	__transport_wait_for_tasks(cmd, true, aborted, tas, &flags);
+	spin_unlock_irqrestore(&cmd->t_state_lock, flags);
+}
+
+int transport_generic_free_cmd(struct se_cmd *cmd, int wait_for_tasks)
+{
 	int ret = 0;
+	bool aborted = false, tas = false;
 
 	if (!(cmd->se_cmd_flags & SCF_SE_LUN_CMD)) {
 		if (wait_for_tasks && (cmd->se_cmd_flags & SCF_SCSI_TMR_CDB))
-			 transport_wait_for_tasks(cmd);
+			target_wait_free_cmd(cmd, &aborted, &tas);
 
-		ret = transport_release_cmd(cmd);
+		if (!aborted || tas)
+			ret = transport_put_cmd(cmd);
 	} else {
 		if (wait_for_tasks)
-			transport_wait_for_tasks(cmd);
+			target_wait_free_cmd(cmd, &aborted, &tas);
 		/*
 		 * Handle WRITE failure case where transport_generic_new_cmd()
 		 * has already added se_cmd to state_list, but fabric has
 		 * failed command before I/O submission.
 		 */
-		if (cmd->state_active) {
-			spin_lock_irqsave(&cmd->t_state_lock, flags);
+		if (cmd->state_active)
 			target_remove_from_state_list(cmd);
-			spin_unlock_irqrestore(&cmd->t_state_lock, flags);
-		}
 
 		if (cmd->se_lun)
 			transport_lun_remove_cmd(cmd);
 
-		ret = transport_put_cmd(cmd);
+		if (!aborted || tas)
+			ret = transport_put_cmd(cmd);
+	}
+	/*
+	 * If the task has been internally aborted due to TMR ABORT_TASK
+	 * or LUN_RESET, target_core_tmr.c is responsible for performing
+	 * the remaining calls to target_put_sess_cmd(), and not the
+	 * callers of this function.
+	 */
+	if (aborted) {
+		pr_debug("Detected CMD_T_ABORTED for ITT: %llu\n", cmd->tag);
+		wait_for_completion(&cmd->cmd_wait_comp);
+		cmd->se_tfo->release_cmd(cmd);
+		ret = 1;
 	}
 	return ret;
 }
@@ -2489,8 +2562,10 @@ int target_get_sess_cmd(struct se_cmd *s
 	 * fabric acknowledgement that requires two target_put_sess_cmd()
 	 * invocations before se_cmd descriptor release.
 	 */
-	if (ack_kref)
+	if (ack_kref) {
 		kref_get(&se_cmd->cmd_kref);
+		se_cmd->se_cmd_flags |= SCF_ACK_KREF;
+	}
 
 	spin_lock_irqsave(&se_sess->sess_cmd_lock, flags);
 	if (se_sess->sess_tearing_down) {
@@ -2508,26 +2583,41 @@ out:
 }
 EXPORT_SYMBOL(target_get_sess_cmd);
 
+static void target_free_cmd_mem(struct se_cmd *cmd)
+{
+	transport_free_pages(cmd);
+
+	if (cmd->se_cmd_flags & SCF_SCSI_TMR_CDB)
+		core_tmr_release_req(cmd->se_tmr_req);
+	if (cmd->t_task_cdb != cmd->__t_task_cdb)
+		kfree(cmd->t_task_cdb);
+}
+
 static void target_release_cmd_kref(struct kref *kref)
 {
 	struct se_cmd *se_cmd = container_of(kref, struct se_cmd, cmd_kref);
 	struct se_session *se_sess = se_cmd->se_sess;
 	unsigned long flags;
+	bool fabric_stop;
 
 	spin_lock_irqsave(&se_sess->sess_cmd_lock, flags);
-	if (list_empty(&se_cmd->se_cmd_list)) {
-		spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags);
-		se_cmd->se_tfo->release_cmd(se_cmd);
-		return;
-	}
-	if (se_sess->sess_tearing_down && se_cmd->cmd_wait_set) {
+
+	spin_lock(&se_cmd->t_state_lock);
+	fabric_stop = (se_cmd->transport_state & CMD_T_FABRIC_STOP) &&
+		      (se_cmd->transport_state & CMD_T_ABORTED);
+	spin_unlock(&se_cmd->t_state_lock);
+
+	if (se_cmd->cmd_wait_set || fabric_stop) {
+		list_del_init(&se_cmd->se_cmd_list);
 		spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags);
+		target_free_cmd_mem(se_cmd);
 		complete(&se_cmd->cmd_wait_comp);
 		return;
 	}
-	list_del(&se_cmd->se_cmd_list);
+	list_del_init(&se_cmd->se_cmd_list);
 	spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags);
 
+	target_free_cmd_mem(se_cmd);
 	se_cmd->se_tfo->release_cmd(se_cmd);
 }
 
@@ -2539,6 +2629,7 @@ int target_put_sess_cmd(struct se_cmd *s
 	struct se_session *se_sess = se_cmd->se_sess;
 
 	if (!se_sess) {
+		target_free_cmd_mem(se_cmd);
 		se_cmd->se_tfo->release_cmd(se_cmd);
 		return 1;
 	}
@@ -2555,6 +2646,7 @@ void target_sess_cmd_list_set_waiting(st
 {
 	struct se_cmd *se_cmd;
 	unsigned long flags;
+	int rc;
 
 	spin_lock_irqsave(&se_sess->sess_cmd_lock, flags);
 	if (se_sess->sess_tearing_down) {
@@ -2564,8 +2656,15 @@ void target_sess_cmd_list_set_waiting(st
 	se_sess->sess_tearing_down = 1;
 	list_splice_init(&se_sess->sess_cmd_list, &se_sess->sess_wait_list);
 
-	list_for_each_entry(se_cmd, &se_sess->sess_wait_list, se_cmd_list)
-		se_cmd->cmd_wait_set = 1;
+	list_for_each_entry(se_cmd, &se_sess->sess_wait_list, se_cmd_list) {
+		rc = kref_get_unless_zero(&se_cmd->cmd_kref);
+		if (rc) {
+			se_cmd->cmd_wait_set = 1;
+			spin_lock(&se_cmd->t_state_lock);
+			se_cmd->transport_state |= CMD_T_FABRIC_STOP;
+			spin_unlock(&se_cmd->t_state_lock);
+		}
+	}
 
 	spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags);
 }
@@ -2578,15 +2677,23 @@ void target_wait_for_sess_cmds(struct se
 {
 	struct se_cmd *se_cmd, *tmp_cmd;
 	unsigned long flags;
+	bool tas;
 
 	list_for_each_entry_safe(se_cmd, tmp_cmd,
 				&se_sess->sess_wait_list, se_cmd_list) {
-		list_del(&se_cmd->se_cmd_list);
-
 		pr_debug("Waiting for se_cmd: %p t_state: %d, fabric state:"
 			" %d\n", se_cmd, se_cmd->t_state,
 			se_cmd->se_tfo->get_cmd_state(se_cmd));
 
+		spin_lock_irqsave(&se_cmd->t_state_lock, flags);
+		tas = (se_cmd->transport_state & CMD_T_TAS);
+		spin_unlock_irqrestore(&se_cmd->t_state_lock, flags);
+
+		if (!target_put_sess_cmd(se_cmd)) {
+			if (tas)
+				target_put_sess_cmd(se_cmd);
+		}
+
 		wait_for_completion(&se_cmd->cmd_wait_comp);
 		pr_debug("After cmd_wait_comp: se_cmd: %p t_state: %d"
 			" fabric state: %d\n", se_cmd, se_cmd->t_state,
@@ -2602,59 +2709,110 @@ void target_wait_for_sess_cmds(struct se
 }
 EXPORT_SYMBOL(target_wait_for_sess_cmds);
 
+static void target_lun_confirm(struct percpu_ref *ref)
+{
+	struct se_lun *lun = container_of(ref, struct se_lun, lun_ref);
+
+	complete(&lun->lun_ref_comp);
+}
+
 void transport_clear_lun_ref(struct se_lun *lun)
 {
-	percpu_ref_kill(&lun->lun_ref);
+	/*
+	 * Mark the percpu-ref as DEAD, switch to atomic_t mode, drop
+	 * the initial reference and schedule confirm kill to be
+	 * executed after one full RCU grace period has completed.
+	 */
+	percpu_ref_kill_and_confirm(&lun->lun_ref, target_lun_confirm);
+	/*
+	 * The first completion waits for percpu_ref_switch_to_atomic_rcu()
+	 * to call target_lun_confirm after lun->lun_ref has been marked
+	 * as __PERCPU_REF_DEAD on all CPUs, and switches to atomic_t
+	 * mode so that percpu_ref_tryget_live() lookup of lun->lun_ref
+	 * fails for all new incoming I/O.
+	 */
 	wait_for_completion(&lun->lun_ref_comp);
+	/*
+	 * The second completion waits for percpu_ref_put_many() to
+	 * invoke ->release() after lun->lun_ref has switched to
+	 * atomic_t mode, and lun->lun_ref.count has reached zero.
+	 *
+	 * At this point all target-core lun->lun_ref references have
+	 * been dropped via transport_lun_remove_cmd(), and it's safe
+	 * to proceed with the remaining LUN shutdown.
+	 */
+	wait_for_completion(&lun->lun_shutdown_comp);
 }
 
-/**
- * transport_wait_for_tasks - wait for completion to occur
- * @cmd:	command to wait
- *
- * Called from frontend fabric context to wait for storage engine
- * to pause and/or release frontend generated struct se_cmd.
- */
-bool transport_wait_for_tasks(struct se_cmd *cmd)
+static bool
+__transport_wait_for_tasks(struct se_cmd *cmd, bool fabric_stop,
+			   bool *aborted, bool *tas, unsigned long *flags)
+	__releases(&cmd->t_state_lock)
+	__acquires(&cmd->t_state_lock)
 {
-	unsigned long flags;
 
-	spin_lock_irqsave(&cmd->t_state_lock, flags);
+	assert_spin_locked(&cmd->t_state_lock);
+	WARN_ON_ONCE(!irqs_disabled());
+
+	if (fabric_stop)
+		cmd->transport_state |= CMD_T_FABRIC_STOP;
+
+	if (cmd->transport_state & CMD_T_ABORTED)
+		*aborted = true;
+
+	if (cmd->transport_state & CMD_T_TAS)
+		*tas = true;
+
 	if (!(cmd->se_cmd_flags & SCF_SE_LUN_CMD) &&
-	    !(cmd->se_cmd_flags & SCF_SCSI_TMR_CDB)) {
-		spin_unlock_irqrestore(&cmd->t_state_lock, flags);
+	    !(cmd->se_cmd_flags & SCF_SCSI_TMR_CDB))
 		return false;
-	}
 
 	if (!(cmd->se_cmd_flags & SCF_SUPPORTED_SAM_OPCODE) &&
-	    !(cmd->se_cmd_flags & SCF_SCSI_TMR_CDB)) {
-		spin_unlock_irqrestore(&cmd->t_state_lock, flags);
+	    !(cmd->se_cmd_flags & SCF_SCSI_TMR_CDB))
 		return false;
-	}
 
-	if (!(cmd->transport_state & CMD_T_ACTIVE)) {
-		spin_unlock_irqrestore(&cmd->t_state_lock, flags);
+	if (!(cmd->transport_state & CMD_T_ACTIVE))
+		return false;
+
+	if (fabric_stop && *aborted)
 		return false;
-	}
 
 	cmd->transport_state |= CMD_T_STOP;
 
-	pr_debug("wait_for_tasks: Stopping %p ITT: 0x%08llx i_state: %d, t_state: %d, CMD_T_STOP\n",
-		cmd, cmd->tag, cmd->se_tfo->get_cmd_state(cmd), cmd->t_state);
+	pr_debug("wait_for_tasks: Stopping %p ITT: 0x%08llx i_state: %d,"
+		 " t_state: %d, CMD_T_STOP\n", cmd, cmd->tag,
+		 cmd->se_tfo->get_cmd_state(cmd), cmd->t_state);
 
-	spin_unlock_irqrestore(&cmd->t_state_lock, flags);
+	spin_unlock_irqrestore(&cmd->t_state_lock, *flags);
 
 	wait_for_completion(&cmd->t_transport_stop_comp);
 
-	spin_lock_irqsave(&cmd->t_state_lock, flags);
+	spin_lock_irqsave(&cmd->t_state_lock, *flags);
 	cmd->transport_state &= ~(CMD_T_ACTIVE | CMD_T_STOP);
 
-	pr_debug("wait_for_tasks: Stopped wait_for_completion(&cmd->t_transport_stop_comp) for ITT: 0x%08llx\n",
-		cmd->tag);
+	pr_debug("wait_for_tasks: Stopped wait_for_completion(&cmd->"
+		 "t_transport_stop_comp) for ITT: 0x%08llx\n", cmd->tag);
+
+	return true;
+}
+
+/**
+ * transport_wait_for_tasks - wait for completion to occur
+ * @cmd:	command to wait
+ *
+ * Called from frontend fabric context to wait for storage engine
+ * to pause and/or release frontend generated struct se_cmd.
+ */
+bool transport_wait_for_tasks(struct se_cmd *cmd)
+{
+	unsigned long flags;
+	bool ret, aborted = false, tas = false;
 
+	spin_lock_irqsave(&cmd->t_state_lock, flags);
+	ret = __transport_wait_for_tasks(cmd, false, &aborted, &tas, &flags);
 	spin_unlock_irqrestore(&cmd->t_state_lock, flags);
 
-	return true;
+	return ret;
 }
 EXPORT_SYMBOL(transport_wait_for_tasks);
 
@@ -2759,6 +2917,12 @@ static const struct sense_info sense_inf
 		.ascq = 0x03, /* LOGICAL BLOCK REFERENCE TAG CHECK FAILED */
 		.add_sector_info = true,
 	},
+	[TCM_COPY_TARGET_DEVICE_NOT_REACHABLE] = {
+		.key = COPY_ABORTED,
+		.asc = 0x0d,
+		.ascq = 0x02, /* COPY TARGET DEVICE NOT REACHABLE */
+
+	},
 	[TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE] = {
 		/*
 		 * Returning ILLEGAL REQUEST would cause immediate IO errors on
@@ -2836,28 +3000,49 @@ transport_send_check_condition_and_sense
 }
 EXPORT_SYMBOL(transport_send_check_condition_and_sense);
 
-int transport_check_aborted_status(struct se_cmd *cmd, int send_status)
+static int __transport_check_aborted_status(struct se_cmd *cmd, int send_status)
+	__releases(&cmd->t_state_lock)
+	__acquires(&cmd->t_state_lock)
 {
+	assert_spin_locked(&cmd->t_state_lock);
+	WARN_ON_ONCE(!irqs_disabled());
+
 	if (!(cmd->transport_state & CMD_T_ABORTED))
 		return 0;
-
 	/*
 	 * If cmd has been aborted but either no status is to be sent or it has
 	 * already been sent, just return
 	 */
-	if (!send_status || !(cmd->se_cmd_flags & SCF_SEND_DELAYED_TAS))
+	if (!send_status || !(cmd->se_cmd_flags & SCF_SEND_DELAYED_TAS)) {
+		if (send_status)
+			cmd->se_cmd_flags |= SCF_SEND_DELAYED_TAS;
 		return 1;
+	}
 
-	pr_debug("Sending delayed SAM_STAT_TASK_ABORTED status for CDB: 0x%02x ITT: 0x%08llx\n",
-		 cmd->t_task_cdb[0], cmd->tag);
+	pr_debug("Sending delayed SAM_STAT_TASK_ABORTED status for CDB:"
+		" 0x%02x ITT: 0x%08llx\n", cmd->t_task_cdb[0], cmd->tag);
 
 	cmd->se_cmd_flags &= ~SCF_SEND_DELAYED_TAS;
 	cmd->scsi_status = SAM_STAT_TASK_ABORTED;
 	trace_target_cmd_complete(cmd);
+
+	spin_unlock_irq(&cmd->t_state_lock);
 	cmd->se_tfo->queue_status(cmd);
+	spin_lock_irq(&cmd->t_state_lock);
 
 	return 1;
 }
+
+int transport_check_aborted_status(struct se_cmd *cmd, int send_status)
+{
+	int ret;
+
+	spin_lock_irq(&cmd->t_state_lock);
+	ret = __transport_check_aborted_status(cmd, send_status);
+	spin_unlock_irq(&cmd->t_state_lock);
+
+	return ret;
+}
 EXPORT_SYMBOL(transport_check_aborted_status);
 
 void transport_send_task_abort(struct se_cmd *cmd)
@@ -2879,11 +3064,17 @@ void transport_send_task_abort(struct se
 	 */
 	if (cmd->data_direction == DMA_TO_DEVICE) {
 		if (cmd->se_tfo->write_pending_status(cmd) != 0) {
-			cmd->transport_state |= CMD_T_ABORTED;
+			spin_lock_irqsave(&cmd->t_state_lock, flags);
+			if (cmd->se_cmd_flags & SCF_SEND_DELAYED_TAS) {
+				spin_unlock_irqrestore(&cmd->t_state_lock, flags);
+				goto send_abort;
+			}
 			cmd->se_cmd_flags |= SCF_SEND_DELAYED_TAS;
+			spin_unlock_irqrestore(&cmd->t_state_lock, flags);
 			return;
 		}
 	}
+send_abort:
 	cmd->scsi_status = SAM_STAT_TASK_ABORTED;
 
 	transport_lun_remove_cmd(cmd);
@@ -2900,8 +3091,17 @@ static void target_tmr_work(struct work_
 	struct se_cmd *cmd = container_of(work, struct se_cmd, work);
 	struct se_device *dev = cmd->se_dev;
 	struct se_tmr_req *tmr = cmd->se_tmr_req;
+	unsigned long flags;
 	int ret;
 
+	spin_lock_irqsave(&cmd->t_state_lock, flags);
+	if (cmd->transport_state & CMD_T_ABORTED) {
+		tmr->response = TMR_FUNCTION_REJECTED;
+		spin_unlock_irqrestore(&cmd->t_state_lock, flags);
+		goto check_stop;
+	}
+	spin_unlock_irqrestore(&cmd->t_state_lock, flags);
+
 	switch (tmr->function) {
 	case TMR_ABORT_TASK:
 		core_tmr_abort_task(dev, tmr, cmd->se_sess);
@@ -2934,9 +3134,16 @@ static void target_tmr_work(struct work_
 		break;
 	}
 
-	cmd->t_state = TRANSPORT_ISTATE_PROCESSING;
+	spin_lock_irqsave(&cmd->t_state_lock, flags);
+	if (cmd->transport_state & CMD_T_ABORTED) {
+		spin_unlock_irqrestore(&cmd->t_state_lock, flags);
+		goto check_stop;
+	}
+	spin_unlock_irqrestore(&cmd->t_state_lock, flags);
+
 	cmd->se_tfo->queue_tm_rsp(cmd);
 
+check_stop:
 	transport_cmd_check_stop_to_fabric(cmd);
 }
 
@@ -2944,11 +3151,25 @@ int transport_generic_handle_tmr(
 	struct se_cmd *cmd)
 {
 	unsigned long flags;
+	bool aborted = false;
 
 	spin_lock_irqsave(&cmd->t_state_lock, flags);
-	cmd->transport_state |= CMD_T_ACTIVE;
+	if (cmd->transport_state & CMD_T_ABORTED) {
+		aborted = true;
+	} else {
+		cmd->t_state = TRANSPORT_ISTATE_PROCESSING;
+		cmd->transport_state |= CMD_T_ACTIVE;
+	}
 	spin_unlock_irqrestore(&cmd->t_state_lock, flags);
 
+	if (aborted) {
+		pr_warn_ratelimited("handle_tmr caught CMD_T_ABORTED TMR %d"
+			"ref_tag: %llu tag: %llu\n", cmd->se_tmr_req->function,
+			cmd->se_tmr_req->ref_task_tag, cmd->tag);
+		transport_cmd_check_stop_to_fabric(cmd);
+		return 0;
+	}
+
 	INIT_WORK(&cmd->work, target_tmr_work);
 	queue_work(cmd->se_dev->tmr_wq, &cmd->work);
 	return 0;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/target/target_core_user.c linux-libre-4.4.107-gnu/drivers/target/target_core_user.c
--- linux-libre-4.4-gnu/drivers/target/target_core_user.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/target/target_core_user.c	2017-12-20 04:05:01.000000000 -0500
@@ -645,8 +645,6 @@ static int tcmu_check_expired_cmd(int id
 	target_complete_cmd(cmd->se_cmd, SAM_STAT_CHECK_CONDITION);
 	cmd->se_cmd = NULL;
 
-	kmem_cache_free(tcmu_cmd_cache, cmd);
-
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/target/target_core_xcopy.c linux-libre-4.4.107-gnu/drivers/target/target_core_xcopy.c
--- linux-libre-4.4-gnu/drivers/target/target_core_xcopy.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/target/target_core_xcopy.c	2017-12-20 04:05:01.000000000 -0500
@@ -104,7 +104,7 @@ static int target_xcopy_locate_se_dev_e4
 	}
 	mutex_unlock(&g_device_mutex);
 
-	pr_err("Unable to locate 0xe4 descriptor for EXTENDED_COPY\n");
+	pr_debug_ratelimited("Unable to locate 0xe4 descriptor for EXTENDED_COPY\n");
 	return -EINVAL;
 }
 
@@ -185,7 +185,7 @@ static int target_xcopy_parse_tiddesc_e4
 
 static int target_xcopy_parse_target_descriptors(struct se_cmd *se_cmd,
 				struct xcopy_op *xop, unsigned char *p,
-				unsigned short tdll)
+				unsigned short tdll, sense_reason_t *sense_ret)
 {
 	struct se_device *local_dev = se_cmd->se_dev;
 	unsigned char *desc = p;
@@ -193,6 +193,8 @@ static int target_xcopy_parse_target_des
 	unsigned short start = 0;
 	bool src = true;
 
+	*sense_ret = TCM_INVALID_PARAMETER_LIST;
+
 	if (offset != 0) {
 		pr_err("XCOPY target descriptor list length is not"
 			" multiple of %d\n", XCOPY_TARGET_DESC_LEN);
@@ -243,9 +245,16 @@ static int target_xcopy_parse_target_des
 		rc = target_xcopy_locate_se_dev_e4(se_cmd, xop, true);
 	else
 		rc = target_xcopy_locate_se_dev_e4(se_cmd, xop, false);
-
-	if (rc < 0)
+	/*
+	 * If a matching IEEE NAA 0x83 descriptor for the requested device
+	 * is not located on this node, return COPY_ABORTED with ASQ/ASQC
+	 * 0x0d/0x02 - COPY_TARGET_DEVICE_NOT_REACHABLE to request the
+	 * initiator to fall back to normal copy method.
+	 */
+	if (rc < 0) {
+		*sense_ret = TCM_COPY_TARGET_DEVICE_NOT_REACHABLE;
 		goto out;
+	}
 
 	pr_debug("XCOPY TGT desc: Source dev: %p NAA IEEE WWN: 0x%16phN\n",
 		 xop->src_dev, &xop->src_tid_wwn[0]);
@@ -653,6 +662,7 @@ static int target_xcopy_read_source(
 	rc = target_xcopy_setup_pt_cmd(xpt_cmd, xop, src_dev, &cdb[0],
 				remote_port, true);
 	if (rc < 0) {
+		ec_cmd->scsi_status = xpt_cmd->se_cmd.scsi_status;
 		transport_generic_free_cmd(se_cmd, 0);
 		return rc;
 	}
@@ -664,6 +674,7 @@ static int target_xcopy_read_source(
 
 	rc = target_xcopy_issue_pt_cmd(xpt_cmd);
 	if (rc < 0) {
+		ec_cmd->scsi_status = xpt_cmd->se_cmd.scsi_status;
 		transport_generic_free_cmd(se_cmd, 0);
 		return rc;
 	}
@@ -714,6 +725,7 @@ static int target_xcopy_write_destinatio
 				remote_port, false);
 	if (rc < 0) {
 		struct se_cmd *src_cmd = &xop->src_pt_cmd->se_cmd;
+		ec_cmd->scsi_status = xpt_cmd->se_cmd.scsi_status;
 		/*
 		 * If the failure happened before the t_mem_list hand-off in
 		 * target_xcopy_setup_pt_cmd(), Reset memory + clear flag so that
@@ -729,6 +741,7 @@ static int target_xcopy_write_destinatio
 
 	rc = target_xcopy_issue_pt_cmd(xpt_cmd);
 	if (rc < 0) {
+		ec_cmd->scsi_status = xpt_cmd->se_cmd.scsi_status;
 		se_cmd->se_cmd_flags &= ~SCF_PASSTHROUGH_SG_TO_MEM_NOALLOC;
 		transport_generic_free_cmd(se_cmd, 0);
 		return rc;
@@ -815,10 +828,15 @@ static void target_xcopy_do_work(struct
 out:
 	xcopy_pt_undepend_remotedev(xop);
 	kfree(xop);
-
-	pr_warn("target_xcopy_do_work: Setting X-COPY CHECK_CONDITION -> sending response\n");
-	ec_cmd->scsi_status = SAM_STAT_CHECK_CONDITION;
-	target_complete_cmd(ec_cmd, SAM_STAT_CHECK_CONDITION);
+	/*
+	 * Don't override an error scsi status if it has already been set
+	 */
+	if (ec_cmd->scsi_status == SAM_STAT_GOOD) {
+		pr_warn_ratelimited("target_xcopy_do_work: rc: %d, Setting X-COPY"
+			" CHECK_CONDITION -> sending response\n", rc);
+		ec_cmd->scsi_status = SAM_STAT_CHECK_CONDITION;
+	}
+	target_complete_cmd(ec_cmd, ec_cmd->scsi_status);
 }
 
 sense_reason_t target_do_xcopy(struct se_cmd *se_cmd)
@@ -875,7 +893,7 @@ sense_reason_t target_do_xcopy(struct se
 		" tdll: %hu sdll: %u inline_dl: %u\n", list_id, list_id_usage,
 		tdll, sdll, inline_dl);
 
-	rc = target_xcopy_parse_target_descriptors(se_cmd, xop, &p[16], tdll);
+	rc = target_xcopy_parse_target_descriptors(se_cmd, xop, &p[16], tdll, &ret);
 	if (rc <= 0)
 		goto out;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/thermal/cpu_cooling.c linux-libre-4.4.107-gnu/drivers/thermal/cpu_cooling.c
--- linux-libre-4.4-gnu/drivers/thermal/cpu_cooling.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/thermal/cpu_cooling.c	2017-12-20 04:05:01.000000000 -0500
@@ -191,8 +191,10 @@ unsigned long cpufreq_cooling_get_level(
 	mutex_lock(&cooling_list_lock);
 	list_for_each_entry(cpufreq_dev, &cpufreq_dev_list, node) {
 		if (cpumask_test_cpu(cpu, &cpufreq_dev->allowed_cpus)) {
+			unsigned long level = get_level(cpufreq_dev, freq);
+
 			mutex_unlock(&cooling_list_lock);
-			return get_level(cpufreq_dev, freq);
+			return level;
 		}
 	}
 	mutex_unlock(&cooling_list_lock);
@@ -377,26 +379,28 @@ static u32 cpu_power_to_freq(struct cpuf
  * get_load() - get load for a cpu since last updated
  * @cpufreq_device:	&struct cpufreq_cooling_device for this cpu
  * @cpu:	cpu number
+ * @cpu_idx:	index of the cpu in cpufreq_device->allowed_cpus
  *
  * Return: The average load of cpu @cpu in percentage since this
  * function was last called.
  */
-static u32 get_load(struct cpufreq_cooling_device *cpufreq_device, int cpu)
+static u32 get_load(struct cpufreq_cooling_device *cpufreq_device, int cpu,
+		    int cpu_idx)
 {
 	u32 load;
 	u64 now, now_idle, delta_time, delta_idle;
 
 	now_idle = get_cpu_idle_time(cpu, &now, 0);
-	delta_idle = now_idle - cpufreq_device->time_in_idle[cpu];
-	delta_time = now - cpufreq_device->time_in_idle_timestamp[cpu];
+	delta_idle = now_idle - cpufreq_device->time_in_idle[cpu_idx];
+	delta_time = now - cpufreq_device->time_in_idle_timestamp[cpu_idx];
 
 	if (delta_time <= delta_idle)
 		load = 0;
 	else
 		load = div64_u64(100 * (delta_time - delta_idle), delta_time);
 
-	cpufreq_device->time_in_idle[cpu] = now_idle;
-	cpufreq_device->time_in_idle_timestamp[cpu] = now;
+	cpufreq_device->time_in_idle[cpu_idx] = now_idle;
+	cpufreq_device->time_in_idle_timestamp[cpu_idx] = now;
 
 	return load;
 }
@@ -598,7 +602,7 @@ static int cpufreq_get_requested_power(s
 		u32 load;
 
 		if (cpu_online(cpu))
-			load = get_load(cpufreq_device, cpu);
+			load = get_load(cpufreq_device, cpu, i);
 		else
 			load = 0;
 
@@ -855,14 +859,6 @@ __cpufreq_cooling_register(struct device
 		goto free_power_table;
 	}
 
-	snprintf(dev_name, sizeof(dev_name), "thermal-cpufreq-%d",
-		 cpufreq_dev->id);
-
-	cool_dev = thermal_of_cooling_device_register(np, dev_name, cpufreq_dev,
-						      &cpufreq_cooling_ops);
-	if (IS_ERR(cool_dev))
-		goto remove_idr;
-
 	/* Fill freq-table in descending order of frequencies */
 	for (i = 0, freq = -1; i <= cpufreq_dev->max_level; i++) {
 		freq = find_next_max(table, freq);
@@ -875,6 +871,14 @@ __cpufreq_cooling_register(struct device
 			pr_debug("%s: freq:%u KHz\n", __func__, freq);
 	}
 
+	snprintf(dev_name, sizeof(dev_name), "thermal-cpufreq-%d",
+		 cpufreq_dev->id);
+
+	cool_dev = thermal_of_cooling_device_register(np, dev_name, cpufreq_dev,
+						      &cpufreq_cooling_ops);
+	if (IS_ERR(cool_dev))
+		goto remove_idr;
+
 	cpufreq_dev->clipped_freq = cpufreq_dev->freq_table[0];
 	cpufreq_dev->cool_dev = cool_dev;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/thermal/rockchip_thermal.c linux-libre-4.4.107-gnu/drivers/thermal/rockchip_thermal.c
--- linux-libre-4.4-gnu/drivers/thermal/rockchip_thermal.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/thermal/rockchip_thermal.c	2017-12-20 04:05:01.000000000 -0500
@@ -545,15 +545,14 @@ static int rockchip_configure_from_dt(st
 			 thermal->chip->tshut_temp);
 		thermal->tshut_temp = thermal->chip->tshut_temp;
 	} else {
+		if (shut_temp > INT_MAX) {
+			dev_err(dev, "Invalid tshut temperature specified: %d\n",
+				shut_temp);
+			return -ERANGE;
+		}
 		thermal->tshut_temp = shut_temp;
 	}
 
-	if (thermal->tshut_temp > INT_MAX) {
-		dev_err(dev, "Invalid tshut temperature specified: %d\n",
-			thermal->tshut_temp);
-		return -ERANGE;
-	}
-
 	if (of_property_read_u32(np, "rockchip,hw-tshut-mode", &tshut_mode)) {
 		dev_warn(dev,
 			 "Missing tshut mode property, using default (%s)\n",
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/thermal/step_wise.c linux-libre-4.4.107-gnu/drivers/thermal/step_wise.c
--- linux-libre-4.4-gnu/drivers/thermal/step_wise.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/thermal/step_wise.c	2017-12-20 04:05:01.000000000 -0500
@@ -31,8 +31,7 @@
  * If the temperature is higher than a trip point,
  *    a. if the trend is THERMAL_TREND_RAISING, use higher cooling
  *       state for this trip point
- *    b. if the trend is THERMAL_TREND_DROPPING, use lower cooling
- *       state for this trip point
+ *    b. if the trend is THERMAL_TREND_DROPPING, do nothing
  *    c. if the trend is THERMAL_TREND_RAISE_FULL, use upper limit
  *       for this trip point
  *    d. if the trend is THERMAL_TREND_DROP_FULL, use lower limit
@@ -63,6 +62,19 @@ static unsigned long get_target_state(st
 	next_target = instance->target;
 	dev_dbg(&cdev->device, "cur_state=%ld\n", cur_state);
 
+	if (!instance->initialized) {
+		if (throttle) {
+			next_target = (cur_state + 1) >= instance->upper ?
+					instance->upper :
+					((cur_state + 1) < instance->lower ?
+					instance->lower : (cur_state + 1));
+		} else {
+			next_target = THERMAL_NO_TARGET;
+		}
+
+		return next_target;
+	}
+
 	switch (trend) {
 	case THERMAL_TREND_RAISING:
 		if (throttle) {
@@ -81,9 +93,11 @@ static unsigned long get_target_state(st
 			if (!throttle)
 				next_target = THERMAL_NO_TARGET;
 		} else {
-			next_target = cur_state - 1;
-			if (next_target > instance->upper)
-				next_target = instance->upper;
+			if (!throttle) {
+				next_target = cur_state - 1;
+				if (next_target > instance->upper)
+					next_target = instance->upper;
+			}
 		}
 		break;
 	case THERMAL_TREND_DROP_FULL:
@@ -149,7 +163,7 @@ static void thermal_zone_trip_update(str
 		dev_dbg(&instance->cdev->device, "old_target=%d, target=%d\n",
 					old_target, (int)instance->target);
 
-		if (old_target == instance->target)
+		if (instance->initialized && old_target == instance->target)
 			continue;
 
 		/* Activate a passive thermal instance */
@@ -161,7 +175,7 @@ static void thermal_zone_trip_update(str
 			instance->target == THERMAL_NO_TARGET)
 			update_passive_instance(tz, trip_type, -1);
 
-
+		instance->initialized = true;
 		instance->cdev->updated = false; /* cdev needs update */
 	}
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/thermal/thermal_core.c linux-libre-4.4.107-gnu/drivers/thermal/thermal_core.c
--- linux-libre-4.4-gnu/drivers/thermal/thermal_core.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/thermal/thermal_core.c	2017-12-20 04:05:01.000000000 -0500
@@ -37,6 +37,7 @@
 #include <linux/of.h>
 #include <net/netlink.h>
 #include <net/genetlink.h>
+#include <linux/suspend.h>
 
 #define CREATE_TRACE_POINTS
 #include <trace/events/thermal.h>
@@ -59,6 +60,8 @@ static LIST_HEAD(thermal_governor_list);
 static DEFINE_MUTEX(thermal_list_lock);
 static DEFINE_MUTEX(thermal_governor_lock);
 
+static atomic_t in_suspend;
+
 static struct thermal_governor *def_governor;
 
 static struct thermal_governor *__find_governor(const char *name)
@@ -451,6 +454,10 @@ static void handle_thermal_trip(struct t
 {
 	enum thermal_trip_type type;
 
+	/* Ignore disabled trip points */
+	if (test_bit(trip, &tz->trips_disabled))
+		return;
+
 	tz->ops->get_trip_type(tz, trip, &type);
 
 	if (type == THERMAL_TRIP_CRITICAL || type == THERMAL_TRIP_HOT)
@@ -532,14 +539,31 @@ static void update_temperature(struct th
 	mutex_unlock(&tz->lock);
 
 	trace_thermal_temperature(tz);
-	dev_dbg(&tz->device, "last_temperature=%d, current_temperature=%d\n",
-				tz->last_temperature, tz->temperature);
+	if (tz->last_temperature == THERMAL_TEMP_INVALID)
+		dev_dbg(&tz->device, "last_temperature N/A, current_temperature=%d\n",
+			tz->temperature);
+	else
+		dev_dbg(&tz->device, "last_temperature=%d, current_temperature=%d\n",
+			tz->last_temperature, tz->temperature);
+}
+
+static void thermal_zone_device_reset(struct thermal_zone_device *tz)
+{
+	struct thermal_instance *pos;
+
+	tz->temperature = THERMAL_TEMP_INVALID;
+	tz->passive = 0;
+	list_for_each_entry(pos, &tz->thermal_instances, tz_node)
+		pos->initialized = false;
 }
 
 void thermal_zone_device_update(struct thermal_zone_device *tz)
 {
 	int count;
 
+	if (atomic_read(&in_suspend))
+		return;
+
 	if (!tz->ops->get_temp)
 		return;
 
@@ -1321,6 +1345,7 @@ int thermal_zone_bind_cooling_device(str
 	if (!result) {
 		list_add_tail(&dev->tz_node, &tz->thermal_instances);
 		list_add_tail(&dev->cdev_node, &cdev->thermal_instances);
+		atomic_set(&tz->need_update, 1);
 	}
 	mutex_unlock(&cdev->lock);
 	mutex_unlock(&tz->lock);
@@ -1430,6 +1455,7 @@ __thermal_cooling_device_register(struct
 				  const struct thermal_cooling_device_ops *ops)
 {
 	struct thermal_cooling_device *cdev;
+	struct thermal_zone_device *pos = NULL;
 	int result;
 
 	if (type && strlen(type) >= THERMAL_NAME_LENGTH)
@@ -1474,6 +1500,12 @@ __thermal_cooling_device_register(struct
 	/* Update binding information for 'this' new cdev */
 	bind_cdev(cdev);
 
+	mutex_lock(&thermal_list_lock);
+	list_for_each_entry(pos, &thermal_tz_list, node)
+		if (atomic_cmpxchg(&pos->need_update, 1, 0))
+			thermal_zone_device_update(pos);
+	mutex_unlock(&thermal_list_lock);
+
 	return cdev;
 }
 
@@ -1768,6 +1800,7 @@ struct thermal_zone_device *thermal_zone
 {
 	struct thermal_zone_device *tz;
 	enum thermal_trip_type trip_type;
+	int trip_temp;
 	int result;
 	int count;
 	int passive = 0;
@@ -1806,6 +1839,8 @@ struct thermal_zone_device *thermal_zone
 	tz->trips = trips;
 	tz->passive_delay = passive_delay;
 	tz->polling_delay = polling_delay;
+	/* A new thermal zone needs to be updated anyway. */
+	atomic_set(&tz->need_update, 1);
 
 	dev_set_name(&tz->device, "thermal_zone%d", tz->id);
 	result = device_register(&tz->device);
@@ -1837,9 +1872,15 @@ struct thermal_zone_device *thermal_zone
 		goto unregister;
 
 	for (count = 0; count < trips; count++) {
-		tz->ops->get_trip_type(tz, count, &trip_type);
+		if (tz->ops->get_trip_type(tz, count, &trip_type))
+			set_bit(count, &tz->trips_disabled);
 		if (trip_type == THERMAL_TRIP_PASSIVE)
 			passive = 1;
+		if (tz->ops->get_trip_temp(tz, count, &trip_temp))
+			set_bit(count, &tz->trips_disabled);
+		/* Check for bogus trip points */
+		if (trip_temp == 0)
+			set_bit(count, &tz->trips_disabled);
 	}
 
 	if (!passive) {
@@ -1900,7 +1941,10 @@ struct thermal_zone_device *thermal_zone
 
 	INIT_DELAYED_WORK(&(tz->poll_queue), thermal_zone_device_check);
 
-	thermal_zone_device_update(tz);
+	thermal_zone_device_reset(tz);
+	/* Update the new thermal zone and mark it as already updated. */
+	if (atomic_cmpxchg(&tz->need_update, 1, 0))
+		thermal_zone_device_update(tz);
 
 	return tz;
 
@@ -2140,6 +2184,36 @@ static void thermal_unregister_governors
 	thermal_gov_power_allocator_unregister();
 }
 
+static int thermal_pm_notify(struct notifier_block *nb,
+				unsigned long mode, void *_unused)
+{
+	struct thermal_zone_device *tz;
+
+	switch (mode) {
+	case PM_HIBERNATION_PREPARE:
+	case PM_RESTORE_PREPARE:
+	case PM_SUSPEND_PREPARE:
+		atomic_set(&in_suspend, 1);
+		break;
+	case PM_POST_HIBERNATION:
+	case PM_POST_RESTORE:
+	case PM_POST_SUSPEND:
+		atomic_set(&in_suspend, 0);
+		list_for_each_entry(tz, &thermal_tz_list, node) {
+			thermal_zone_device_reset(tz);
+			thermal_zone_device_update(tz);
+		}
+		break;
+	default:
+		break;
+	}
+	return 0;
+}
+
+static struct notifier_block thermal_pm_nb = {
+	.notifier_call = thermal_pm_notify,
+};
+
 static int __init thermal_init(void)
 {
 	int result;
@@ -2160,6 +2234,11 @@ static int __init thermal_init(void)
 	if (result)
 		goto exit_netlink;
 
+	result = register_pm_notifier(&thermal_pm_nb);
+	if (result)
+		pr_warn("Thermal: Can not register suspend notifier, return %d\n",
+			result);
+
 	return 0;
 
 exit_netlink:
@@ -2179,6 +2258,7 @@ error:
 
 static void __exit thermal_exit(void)
 {
+	unregister_pm_notifier(&thermal_pm_nb);
 	of_thermal_destroy_zones();
 	genetlink_exit();
 	class_unregister(&thermal_class);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/thermal/thermal_core.h linux-libre-4.4.107-gnu/drivers/thermal/thermal_core.h
--- linux-libre-4.4-gnu/drivers/thermal/thermal_core.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/thermal/thermal_core.h	2017-12-20 04:05:01.000000000 -0500
@@ -41,6 +41,7 @@ struct thermal_instance {
 	struct thermal_zone_device *tz;
 	struct thermal_cooling_device *cdev;
 	int trip;
+	bool initialized;
 	unsigned long upper;	/* Highest cooling state for this trip point */
 	unsigned long lower;	/* Lowest cooling state for this trip point */
 	unsigned long target;	/* expected cooling state */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/thermal/thermal_hwmon.c linux-libre-4.4.107-gnu/drivers/thermal/thermal_hwmon.c
--- linux-libre-4.4-gnu/drivers/thermal/thermal_hwmon.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/thermal/thermal_hwmon.c	2017-12-20 04:05:01.000000000 -0500
@@ -98,7 +98,7 @@ temp_crit_show(struct device *dev, struc
 	int temperature;
 	int ret;
 
-	ret = tz->ops->get_trip_temp(tz, 0, &temperature);
+	ret = tz->ops->get_crit_temp(tz, &temperature);
 	if (ret)
 		return ret;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/thunderbolt/eeprom.c linux-libre-4.4.107-gnu/drivers/thunderbolt/eeprom.c
--- linux-libre-4.4-gnu/drivers/thunderbolt/eeprom.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/thunderbolt/eeprom.c	2017-12-20 04:05:01.000000000 -0500
@@ -444,6 +444,7 @@ int tb_drom_read(struct tb_switch *sw)
 	return tb_drom_parse_entries(sw);
 err:
 	kfree(sw->drom);
+	sw->drom = NULL;
 	return -EIO;
 
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/tty/n_gsm.c linux-libre-4.4.107-gnu/drivers/tty/n_gsm.c
--- linux-libre-4.4-gnu/drivers/tty/n_gsm.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/tty/n_gsm.c	2017-12-20 04:05:01.000000000 -0500
@@ -2045,7 +2045,9 @@ static void gsm_cleanup_mux(struct gsm_m
 		}
 	}
 	spin_unlock(&gsm_mux_lock);
-	WARN_ON(i == MAX_MUX);
+	/* open failed before registering => nothing to do */
+	if (i == MAX_MUX)
+		return;
 
 	/* In theory disconnecting DLCI 0 is sufficient but for some
 	   modems this is apparently not the case. */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/tty/n_hdlc.c linux-libre-4.4.107-gnu/drivers/tty/n_hdlc.c
--- linux-libre-4.4-gnu/drivers/tty/n_hdlc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/tty/n_hdlc.c	2017-12-20 04:05:01.000000000 -0500
@@ -114,7 +114,7 @@
 #define DEFAULT_TX_BUF_COUNT 3
 
 struct n_hdlc_buf {
-	struct n_hdlc_buf *link;
+	struct list_head  list_item;
 	int		  count;
 	char		  buf[1];
 };
@@ -122,8 +122,7 @@ struct n_hdlc_buf {
 #define	N_HDLC_BUF_SIZE	(sizeof(struct n_hdlc_buf) + maxframe)
 
 struct n_hdlc_buf_list {
-	struct n_hdlc_buf *head;
-	struct n_hdlc_buf *tail;
+	struct list_head  list;
 	int		  count;
 	spinlock_t	  spinlock;
 };
@@ -136,7 +135,6 @@ struct n_hdlc_buf_list {
  * @backup_tty - TTY to use if tty gets closed
  * @tbusy - reentrancy flag for tx wakeup code
  * @woke_up - FIXME: describe this field
- * @tbuf - currently transmitting tx buffer
  * @tx_buf_list - list of pending transmit frame buffers
  * @rx_buf_list - list of received frame buffers
  * @tx_free_buf_list - list unused transmit frame buffers
@@ -149,7 +147,6 @@ struct n_hdlc {
 	struct tty_struct	*backup_tty;
 	int			tbusy;
 	int			woke_up;
-	struct n_hdlc_buf	*tbuf;
 	struct n_hdlc_buf_list	tx_buf_list;
 	struct n_hdlc_buf_list	rx_buf_list;
 	struct n_hdlc_buf_list	tx_free_buf_list;
@@ -159,7 +156,8 @@ struct n_hdlc {
 /*
  * HDLC buffer list manipulation functions
  */
-static void n_hdlc_buf_list_init(struct n_hdlc_buf_list *list);
+static void n_hdlc_buf_return(struct n_hdlc_buf_list *buf_list,
+						struct n_hdlc_buf *buf);
 static void n_hdlc_buf_put(struct n_hdlc_buf_list *list,
 			   struct n_hdlc_buf *buf);
 static struct n_hdlc_buf *n_hdlc_buf_get(struct n_hdlc_buf_list *list);
@@ -209,16 +207,9 @@ static void flush_tx_queue(struct tty_st
 {
 	struct n_hdlc *n_hdlc = tty2n_hdlc(tty);
 	struct n_hdlc_buf *buf;
-	unsigned long flags;
 
 	while ((buf = n_hdlc_buf_get(&n_hdlc->tx_buf_list)))
 		n_hdlc_buf_put(&n_hdlc->tx_free_buf_list, buf);
- 	spin_lock_irqsave(&n_hdlc->tx_buf_list.spinlock, flags);
-	if (n_hdlc->tbuf) {
-		n_hdlc_buf_put(&n_hdlc->tx_free_buf_list, n_hdlc->tbuf);
-		n_hdlc->tbuf = NULL;
-	}
-	spin_unlock_irqrestore(&n_hdlc->tx_buf_list.spinlock, flags);
 }
 
 static struct tty_ldisc_ops n_hdlc_ldisc = {
@@ -284,7 +275,6 @@ static void n_hdlc_release(struct n_hdlc
 		} else
 			break;
 	}
-	kfree(n_hdlc->tbuf);
 	kfree(n_hdlc);
 	
 }	/* end of n_hdlc_release() */
@@ -403,13 +393,7 @@ static void n_hdlc_send_frames(struct n_
 	n_hdlc->woke_up = 0;
 	spin_unlock_irqrestore(&n_hdlc->tx_buf_list.spinlock, flags);
 
-	/* get current transmit buffer or get new transmit */
-	/* buffer from list of pending transmit buffers */
-		
-	tbuf = n_hdlc->tbuf;
-	if (!tbuf)
-		tbuf = n_hdlc_buf_get(&n_hdlc->tx_buf_list);
-		
+	tbuf = n_hdlc_buf_get(&n_hdlc->tx_buf_list);
 	while (tbuf) {
 		if (debuglevel >= DEBUG_LEVEL_INFO)	
 			printk("%s(%d)sending frame %p, count=%d\n",
@@ -421,7 +405,7 @@ static void n_hdlc_send_frames(struct n_
 
 		/* rollback was possible and has been done */
 		if (actual == -ERESTARTSYS) {
-			n_hdlc->tbuf = tbuf;
+			n_hdlc_buf_return(&n_hdlc->tx_buf_list, tbuf);
 			break;
 		}
 		/* if transmit error, throw frame away by */
@@ -436,10 +420,7 @@ static void n_hdlc_send_frames(struct n_
 					
 			/* free current transmit buffer */
 			n_hdlc_buf_put(&n_hdlc->tx_free_buf_list, tbuf);
-			
-			/* this tx buffer is done */
-			n_hdlc->tbuf = NULL;
-			
+
 			/* wait up sleeping writers */
 			wake_up_interruptible(&tty->write_wait);
 	
@@ -449,10 +430,12 @@ static void n_hdlc_send_frames(struct n_
 			if (debuglevel >= DEBUG_LEVEL_INFO)	
 				printk("%s(%d)frame %p pending\n",
 					__FILE__,__LINE__,tbuf);
-					
-			/* buffer not accepted by driver */
-			/* set this buffer as pending buffer */
-			n_hdlc->tbuf = tbuf;
+
+			/*
+			 * the buffer was not accepted by driver,
+			 * return it back into tx queue
+			 */
+			n_hdlc_buf_return(&n_hdlc->tx_buf_list, tbuf);
 			break;
 		}
 	}
@@ -600,7 +583,7 @@ static ssize_t n_hdlc_tty_read(struct tt
 	add_wait_queue(&tty->read_wait, &wait);
 
 	for (;;) {
-		if (test_bit(TTY_OTHER_DONE, &tty->flags)) {
+		if (test_bit(TTY_OTHER_CLOSED, &tty->flags)) {
 			ret = -EIO;
 			break;
 		}
@@ -750,7 +733,8 @@ static int n_hdlc_tty_ioctl(struct tty_s
 	int error = 0;
 	int count;
 	unsigned long flags;
-	
+	struct n_hdlc_buf *buf = NULL;
+
 	if (debuglevel >= DEBUG_LEVEL_INFO)	
 		printk("%s(%d)n_hdlc_tty_ioctl() called %d\n",
 			__FILE__,__LINE__,cmd);
@@ -764,8 +748,10 @@ static int n_hdlc_tty_ioctl(struct tty_s
 		/* report count of read data available */
 		/* in next available frame (if any) */
 		spin_lock_irqsave(&n_hdlc->rx_buf_list.spinlock,flags);
-		if (n_hdlc->rx_buf_list.head)
-			count = n_hdlc->rx_buf_list.head->count;
+		buf = list_first_entry_or_null(&n_hdlc->rx_buf_list.list,
+						struct n_hdlc_buf, list_item);
+		if (buf)
+			count = buf->count;
 		else
 			count = 0;
 		spin_unlock_irqrestore(&n_hdlc->rx_buf_list.spinlock,flags);
@@ -777,8 +763,10 @@ static int n_hdlc_tty_ioctl(struct tty_s
 		count = tty_chars_in_buffer(tty);
 		/* add size of next output frame in queue */
 		spin_lock_irqsave(&n_hdlc->tx_buf_list.spinlock,flags);
-		if (n_hdlc->tx_buf_list.head)
-			count += n_hdlc->tx_buf_list.head->count;
+		buf = list_first_entry_or_null(&n_hdlc->tx_buf_list.list,
+						struct n_hdlc_buf, list_item);
+		if (buf)
+			count += buf->count;
 		spin_unlock_irqrestore(&n_hdlc->tx_buf_list.spinlock,flags);
 		error = put_user(count, (int __user *)arg);
 		break;
@@ -826,14 +814,14 @@ static unsigned int n_hdlc_tty_poll(stru
 		poll_wait(filp, &tty->write_wait, wait);
 
 		/* set bits for operations that won't block */
-		if (n_hdlc->rx_buf_list.head)
+		if (!list_empty(&n_hdlc->rx_buf_list.list))
 			mask |= POLLIN | POLLRDNORM;	/* readable */
-		if (test_bit(TTY_OTHER_DONE, &tty->flags))
+		if (test_bit(TTY_OTHER_CLOSED, &tty->flags))
 			mask |= POLLHUP;
 		if (tty_hung_up_p(filp))
 			mask |= POLLHUP;
 		if (!tty_is_writelocked(tty) &&
-				n_hdlc->tx_free_buf_list.head)
+				!list_empty(&n_hdlc->tx_free_buf_list.list))
 			mask |= POLLOUT | POLLWRNORM;	/* writable */
 	}
 	return mask;
@@ -853,11 +841,16 @@ static struct n_hdlc *n_hdlc_alloc(void)
 	if (!n_hdlc)
 		return NULL;
 
-	n_hdlc_buf_list_init(&n_hdlc->rx_free_buf_list);
-	n_hdlc_buf_list_init(&n_hdlc->tx_free_buf_list);
-	n_hdlc_buf_list_init(&n_hdlc->rx_buf_list);
-	n_hdlc_buf_list_init(&n_hdlc->tx_buf_list);
-	
+	spin_lock_init(&n_hdlc->rx_free_buf_list.spinlock);
+	spin_lock_init(&n_hdlc->tx_free_buf_list.spinlock);
+	spin_lock_init(&n_hdlc->rx_buf_list.spinlock);
+	spin_lock_init(&n_hdlc->tx_buf_list.spinlock);
+
+	INIT_LIST_HEAD(&n_hdlc->rx_free_buf_list.list);
+	INIT_LIST_HEAD(&n_hdlc->tx_free_buf_list.list);
+	INIT_LIST_HEAD(&n_hdlc->rx_buf_list.list);
+	INIT_LIST_HEAD(&n_hdlc->tx_buf_list.list);
+
 	/* allocate free rx buffer list */
 	for(i=0;i<DEFAULT_RX_BUF_COUNT;i++) {
 		buf = kmalloc(N_HDLC_BUF_SIZE, GFP_KERNEL);
@@ -885,63 +878,65 @@ static struct n_hdlc *n_hdlc_alloc(void)
 }	/* end of n_hdlc_alloc() */
 
 /**
- * n_hdlc_buf_list_init - initialize specified HDLC buffer list
- * @list - pointer to buffer list
+ * n_hdlc_buf_return - put the HDLC buffer after the head of the specified list
+ * @buf_list - pointer to the buffer list
+ * @buf - pointer to the buffer
  */
-static void n_hdlc_buf_list_init(struct n_hdlc_buf_list *list)
+static void n_hdlc_buf_return(struct n_hdlc_buf_list *buf_list,
+						struct n_hdlc_buf *buf)
 {
-	memset(list, 0, sizeof(*list));
-	spin_lock_init(&list->spinlock);
-}	/* end of n_hdlc_buf_list_init() */
+	unsigned long flags;
+
+	spin_lock_irqsave(&buf_list->spinlock, flags);
+
+	list_add(&buf->list_item, &buf_list->list);
+	buf_list->count++;
+
+	spin_unlock_irqrestore(&buf_list->spinlock, flags);
+}
 
 /**
  * n_hdlc_buf_put - add specified HDLC buffer to tail of specified list
- * @list - pointer to buffer list
+ * @buf_list - pointer to buffer list
  * @buf	- pointer to buffer
  */
-static void n_hdlc_buf_put(struct n_hdlc_buf_list *list,
+static void n_hdlc_buf_put(struct n_hdlc_buf_list *buf_list,
 			   struct n_hdlc_buf *buf)
 {
 	unsigned long flags;
-	spin_lock_irqsave(&list->spinlock,flags);
-	
-	buf->link=NULL;
-	if (list->tail)
-		list->tail->link = buf;
-	else
-		list->head = buf;
-	list->tail = buf;
-	(list->count)++;
-	
-	spin_unlock_irqrestore(&list->spinlock,flags);
-	
+
+	spin_lock_irqsave(&buf_list->spinlock, flags);
+
+	list_add_tail(&buf->list_item, &buf_list->list);
+	buf_list->count++;
+
+	spin_unlock_irqrestore(&buf_list->spinlock, flags);
 }	/* end of n_hdlc_buf_put() */
 
 /**
  * n_hdlc_buf_get - remove and return an HDLC buffer from list
- * @list - pointer to HDLC buffer list
+ * @buf_list - pointer to HDLC buffer list
  * 
  * Remove and return an HDLC buffer from the head of the specified HDLC buffer
  * list.
  * Returns a pointer to HDLC buffer if available, otherwise %NULL.
  */
-static struct n_hdlc_buf* n_hdlc_buf_get(struct n_hdlc_buf_list *list)
+static struct n_hdlc_buf *n_hdlc_buf_get(struct n_hdlc_buf_list *buf_list)
 {
 	unsigned long flags;
 	struct n_hdlc_buf *buf;
-	spin_lock_irqsave(&list->spinlock,flags);
-	
-	buf = list->head;
+
+	spin_lock_irqsave(&buf_list->spinlock, flags);
+
+	buf = list_first_entry_or_null(&buf_list->list,
+						struct n_hdlc_buf, list_item);
 	if (buf) {
-		list->head = buf->link;
-		(list->count)--;
+		list_del(&buf->list_item);
+		buf_list->count--;
 	}
-	if (!list->head)
-		list->tail = NULL;
-	
-	spin_unlock_irqrestore(&list->spinlock,flags);
+
+	spin_unlock_irqrestore(&buf_list->spinlock, flags);
 	return buf;
-	
 }	/* end of n_hdlc_buf_get() */
 
 static char hdlc_banner[] __initdata =
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/tty/nozomi.c linux-libre-4.4.107-gnu/drivers/tty/nozomi.c
--- linux-libre-4.4-gnu/drivers/tty/nozomi.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/tty/nozomi.c	2017-12-20 04:05:01.000000000 -0500
@@ -823,7 +823,7 @@ static int receive_data(enum port_type i
 	struct tty_struct *tty = tty_port_tty_get(&port->port);
 	int i, ret;
 
-	read_mem32((u32 *) &size, addr, 4);
+	size = __le32_to_cpu(readl(addr));
 	/*  DBG1( "%d bytes port: %d", size, index); */
 
 	if (tty && test_bit(TTY_THROTTLED, &tty->flags)) {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/tty/n_tty.c linux-libre-4.4.107-gnu/drivers/tty/n_tty.c
--- linux-libre-4.4-gnu/drivers/tty/n_tty.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/tty/n_tty.c	2017-12-20 04:05:01.000000000 -0500
@@ -258,16 +258,13 @@ static void n_tty_check_throttle(struct
 
 static void n_tty_check_unthrottle(struct tty_struct *tty)
 {
-	if (tty->driver->type == TTY_DRIVER_TYPE_PTY &&
-	    tty->link->ldisc->ops->write_wakeup == n_tty_write_wakeup) {
+	if (tty->driver->type == TTY_DRIVER_TYPE_PTY) {
 		if (chars_in_buffer(tty) > TTY_THRESHOLD_UNTHROTTLE)
 			return;
 		if (!tty->count)
 			return;
 		n_tty_kick_worker(tty);
-		n_tty_write_wakeup(tty->link);
-		if (waitqueue_active(&tty->link->write_wait))
-			wake_up_interruptible_poll(&tty->link->write_wait, POLLOUT);
+		tty_wakeup(tty->link);
 		return;
 	}
 
@@ -1958,18 +1955,6 @@ static inline int input_available_p(stru
 		return ldata->commit_head - ldata->read_tail >= amt;
 }
 
-static inline int check_other_done(struct tty_struct *tty)
-{
-	int done = test_bit(TTY_OTHER_DONE, &tty->flags);
-	if (done) {
-		/* paired with cmpxchg() in check_other_closed(); ensures
-		 * read buffer head index is not stale
-		 */
-		smp_mb__after_atomic();
-	}
-	return done;
-}
-
 /**
  *	copy_from_read_buf	-	copy read data directly
  *	@tty: terminal device
@@ -2174,7 +2159,7 @@ static ssize_t n_tty_read(struct tty_str
 	struct n_tty_data *ldata = tty->disc_data;
 	unsigned char __user *b = buf;
 	DEFINE_WAIT_FUNC(wait, woken_wake_function);
-	int c, done;
+	int c;
 	int minimum, time;
 	ssize_t retval = 0;
 	long timeout;
@@ -2242,32 +2227,35 @@ static ssize_t n_tty_read(struct tty_str
 		    ((minimum - (b - buf)) >= 1))
 			ldata->minimum_to_wake = (minimum - (b - buf));
 
-		done = check_other_done(tty);
-
 		if (!input_available_p(tty, 0)) {
-			if (done) {
-				retval = -EIO;
-				break;
-			}
-			if (tty_hung_up_p(file))
-				break;
-			if (!timeout)
-				break;
-			if (file->f_flags & O_NONBLOCK) {
-				retval = -EAGAIN;
-				break;
-			}
-			if (signal_pending(current)) {
-				retval = -ERESTARTSYS;
-				break;
-			}
 			up_read(&tty->termios_rwsem);
+			tty_buffer_flush_work(tty->port);
+			down_read(&tty->termios_rwsem);
+			if (!input_available_p(tty, 0)) {
+				if (test_bit(TTY_OTHER_CLOSED, &tty->flags)) {
+					retval = -EIO;
+					break;
+				}
+				if (tty_hung_up_p(file))
+					break;
+				if (!timeout)
+					break;
+				if (file->f_flags & O_NONBLOCK) {
+					retval = -EAGAIN;
+					break;
+				}
+				if (signal_pending(current)) {
+					retval = -ERESTARTSYS;
+					break;
+				}
+				up_read(&tty->termios_rwsem);
 
-			timeout = wait_woken(&wait, TASK_INTERRUPTIBLE,
-					     timeout);
+				timeout = wait_woken(&wait, TASK_INTERRUPTIBLE,
+						timeout);
 
-			down_read(&tty->termios_rwsem);
-			continue;
+				down_read(&tty->termios_rwsem);
+				continue;
+			}
 		}
 
 		if (ldata->icanon && !L_EXTPROC(tty)) {
@@ -2449,12 +2437,17 @@ static unsigned int n_tty_poll(struct tt
 
 	poll_wait(file, &tty->read_wait, wait);
 	poll_wait(file, &tty->write_wait, wait);
-	if (check_other_done(tty))
-		mask |= POLLHUP;
 	if (input_available_p(tty, 1))
 		mask |= POLLIN | POLLRDNORM;
+	else {
+		tty_buffer_flush_work(tty->port);
+		if (input_available_p(tty, 1))
+			mask |= POLLIN | POLLRDNORM;
+	}
 	if (tty->packet && tty->link->ctrl_status)
 		mask |= POLLPRI | POLLIN | POLLRDNORM;
+	if (test_bit(TTY_OTHER_CLOSED, &tty->flags))
+		mask |= POLLHUP;
 	if (tty_hung_up_p(file))
 		mask |= POLLHUP;
 	if (!(mask & (POLLHUP | POLLIN | POLLRDNORM))) {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/tty/pty.c linux-libre-4.4.107-gnu/drivers/tty/pty.c
--- linux-libre-4.4-gnu/drivers/tty/pty.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/tty/pty.c	2017-12-20 04:05:01.000000000 -0500
@@ -59,7 +59,7 @@ static void pty_close(struct tty_struct
 	if (!tty->link)
 		return;
 	set_bit(TTY_OTHER_CLOSED, &tty->link->flags);
-	tty_flip_buffer_push(tty->link->port);
+	wake_up_interruptible(&tty->link->read_wait);
 	wake_up_interruptible(&tty->link->write_wait);
 	if (tty->driver->subtype == PTY_TYPE_MASTER) {
 		set_bit(TTY_OTHER_CLOSED, &tty->flags);
@@ -216,16 +216,11 @@ static int pty_signal(struct tty_struct
 static void pty_flush_buffer(struct tty_struct *tty)
 {
 	struct tty_struct *to = tty->link;
-	struct tty_ldisc *ld;
 
 	if (!to)
 		return;
 
-	ld = tty_ldisc_ref(to);
-	tty_buffer_flush(to, ld);
-	if (ld)
-		tty_ldisc_deref(ld);
-
+	tty_buffer_flush(to, NULL);
 	if (to->packet) {
 		spin_lock_irq(&tty->ctrl_lock);
 		tty->ctrl_status |= TIOCPKT_FLUSHWRITE;
@@ -247,9 +242,7 @@ static int pty_open(struct tty_struct *t
 		goto out;
 
 	clear_bit(TTY_IO_ERROR, &tty->flags);
-	/* TTY_OTHER_CLOSED must be cleared before TTY_OTHER_DONE */
 	clear_bit(TTY_OTHER_CLOSED, &tty->link->flags);
-	clear_bit(TTY_OTHER_DONE, &tty->link->flags);
 	set_bit(TTY_THROTTLED, &tty->flags);
 	return 0;
 
@@ -681,7 +674,14 @@ static void pty_unix98_remove(struct tty
 /* this is called once with whichever end is closed last */
 static void pty_unix98_shutdown(struct tty_struct *tty)
 {
-	devpts_kill_index(tty->driver_data, tty->index);
+	struct pts_fs_info *fsi;
+
+	if (tty->driver->subtype == PTY_TYPE_MASTER)
+		fsi = tty->driver_data;
+	else
+		fsi = tty->link->driver_data;
+	devpts_kill_index(fsi, tty->index);
+	devpts_put_ref(fsi);
 }
 
 static const struct tty_operations ptm_unix98_ops = {
@@ -733,6 +733,7 @@ static const struct tty_operations pty_u
 
 static int ptmx_open(struct inode *inode, struct file *filp)
 {
+	struct pts_fs_info *fsi;
 	struct tty_struct *tty;
 	struct inode *slave_inode;
 	int retval;
@@ -747,35 +748,41 @@ static int ptmx_open(struct inode *inode
 	if (retval)
 		return retval;
 
+	fsi = devpts_get_ref(inode, filp);
+	retval = -ENODEV;
+	if (!fsi)
+		goto out_free_file;
+
 	/* find a device that is not in use. */
 	mutex_lock(&devpts_mutex);
-	index = devpts_new_index(inode);
-	if (index < 0) {
-		retval = index;
-		mutex_unlock(&devpts_mutex);
-		goto err_file;
-	}
-
+	index = devpts_new_index(fsi);
 	mutex_unlock(&devpts_mutex);
 
-	mutex_lock(&tty_mutex);
-	tty = tty_init_dev(ptm_driver, index);
+	retval = index;
+	if (index < 0)
+		goto out_put_ref;
 
-	if (IS_ERR(tty)) {
-		retval = PTR_ERR(tty);
-		goto out;
-	}
 
+	mutex_lock(&tty_mutex);
+	tty = tty_init_dev(ptm_driver, index);
 	/* The tty returned here is locked so we can safely
 	   drop the mutex */
 	mutex_unlock(&tty_mutex);
 
+	retval = PTR_ERR(tty);
+	if (IS_ERR(tty))
+		goto out;
+
+	/*
+	 * From here on out, the tty is "live", and the index and
+	 * fsi will be killed/put by the tty_release()
+	 */
 	set_bit(TTY_PTY_LOCK, &tty->flags); /* LOCK THE SLAVE */
-	tty->driver_data = inode;
+	tty->driver_data = fsi;
 
 	tty_add_file(tty, filp);
 
-	slave_inode = devpts_pty_new(inode,
+	slave_inode = devpts_pty_new(fsi,
 			MKDEV(UNIX98_PTY_SLAVE_MAJOR, index), index,
 			tty->link);
 	if (IS_ERR(slave_inode)) {
@@ -794,12 +801,14 @@ static int ptmx_open(struct inode *inode
 	return 0;
 err_release:
 	tty_unlock(tty);
+	// This will also put-ref the fsi
 	tty_release(inode, filp);
 	return retval;
 out:
-	mutex_unlock(&tty_mutex);
-	devpts_kill_index(inode, index);
-err_file:
+	devpts_kill_index(fsi, index);
+out_put_ref:
+	devpts_put_ref(fsi);
+out_free_file:
 	tty_free_file(filp);
 	return retval;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/tty/serial/8250/8250_dw.c linux-libre-4.4.107-gnu/drivers/tty/serial/8250/8250_dw.c
--- linux-libre-4.4-gnu/drivers/tty/serial/8250/8250_dw.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/tty/serial/8250/8250_dw.c	2017-12-20 04:05:01.000000000 -0500
@@ -440,7 +440,7 @@ static int dw8250_probe(struct platform_
 	}
 
 	data->pclk = devm_clk_get(&pdev->dev, "apb_pclk");
-	if (IS_ERR(data->clk) && PTR_ERR(data->clk) == -EPROBE_DEFER) {
+	if (IS_ERR(data->pclk) && PTR_ERR(data->pclk) == -EPROBE_DEFER) {
 		err = -EPROBE_DEFER;
 		goto err_clk;
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/tty/serial/8250/8250_fintek.c linux-libre-4.4.107-gnu/drivers/tty/serial/8250/8250_fintek.c
--- linux-libre-4.4-gnu/drivers/tty/serial/8250/8250_fintek.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/tty/serial/8250/8250_fintek.c	2017-12-20 04:05:01.000000000 -0500
@@ -117,7 +117,7 @@ static int fintek_8250_rs485_config(stru
 
 	if ((!!(rs485->flags & SER_RS485_RTS_ON_SEND)) ==
 			(!!(rs485->flags & SER_RS485_RTS_AFTER_SEND)))
-		rs485->flags &= SER_RS485_ENABLED;
+		rs485->flags &= ~SER_RS485_ENABLED;
 	else
 		config |= RS485_URA;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/tty/serial/8250/8250_mid.c linux-libre-4.4.107-gnu/drivers/tty/serial/8250/8250_mid.c
--- linux-libre-4.4-gnu/drivers/tty/serial/8250/8250_mid.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/tty/serial/8250/8250_mid.c	2017-12-20 04:05:01.000000000 -0500
@@ -14,6 +14,7 @@
 #include <linux/pci.h>
 
 #include <linux/dma/hsu.h>
+#include <linux/8250_pci.h>
 
 #include "8250.h"
 
@@ -24,6 +25,7 @@
 #define PCI_DEVICE_ID_INTEL_DNV_UART	0x19d8
 
 /* Intel MID Specific registers */
+#define INTEL_MID_UART_DNV_FISR		0x08
 #define INTEL_MID_UART_PS		0x30
 #define INTEL_MID_UART_MUL		0x34
 #define INTEL_MID_UART_DIV		0x38
@@ -31,6 +33,7 @@
 struct mid8250;
 
 struct mid8250_board {
+	unsigned int flags;
 	unsigned long freq;
 	unsigned int base_baud;
 	int (*setup)(struct mid8250 *, struct uart_port *p);
@@ -88,16 +91,16 @@ static int tng_setup(struct mid8250 *mid
 static int dnv_handle_irq(struct uart_port *p)
 {
 	struct mid8250 *mid = p->private_data;
-	int ret;
-
-	ret = hsu_dma_irq(&mid->dma_chip, 0);
-	ret |= hsu_dma_irq(&mid->dma_chip, 1);
-
-	/* For now, letting the HW generate separate interrupt for the UART */
-	if (ret)
-		return ret;
+	unsigned int fisr = serial_port_in(p, INTEL_MID_UART_DNV_FISR);
+	int ret = IRQ_NONE;
 
-	return serial8250_handle_irq(p, serial_port_in(p, UART_IIR));
+	if (fisr & BIT(2))
+		ret |= hsu_dma_irq(&mid->dma_chip, 1);
+	if (fisr & BIT(1))
+		ret |= hsu_dma_irq(&mid->dma_chip, 0);
+	if (fisr & BIT(0))
+		ret |= serial8250_handle_irq(p, serial_port_in(p, UART_IIR));
+	return ret;
 }
 
 #define DNV_DMA_CHAN_OFFSET 0x80
@@ -106,12 +109,13 @@ static int dnv_setup(struct mid8250 *mid
 {
 	struct hsu_dma_chip *chip = &mid->dma_chip;
 	struct pci_dev *pdev = to_pci_dev(p->dev);
+	unsigned int bar = FL_GET_BASE(mid->board->flags);
 	int ret;
 
 	chip->dev = &pdev->dev;
 	chip->irq = pdev->irq;
 	chip->regs = p->membase;
-	chip->length = pci_resource_len(pdev, 0);
+	chip->length = pci_resource_len(pdev, bar);
 	chip->offset = DNV_DMA_CHAN_OFFSET;
 
 	/* Falling back to PIO mode if DMA probing fails */
@@ -145,6 +149,9 @@ static void mid8250_set_termios(struct u
 	unsigned long w = BIT(24) - 1;
 	unsigned long mul, div;
 
+	/* Gracefully handle the B0 case: fall back to B9600 */
+	fuart = fuart ? fuart : 9600 * 16;
+
 	if (mid->board->freq < fuart) {
 		/* Find prescaler value that satisfies Fuart < Fref */
 		if (mid->board->freq > baud)
@@ -217,6 +224,7 @@ static int mid8250_probe(struct pci_dev
 {
 	struct uart_8250_port uart;
 	struct mid8250 *mid;
+	unsigned int bar;
 	int ret;
 
 	ret = pcim_enable_device(pdev);
@@ -230,6 +238,7 @@ static int mid8250_probe(struct pci_dev
 		return -ENOMEM;
 
 	mid->board = (struct mid8250_board *)id->driver_data;
+	bar = FL_GET_BASE(mid->board->flags);
 
 	memset(&uart, 0, sizeof(struct uart_8250_port));
 
@@ -242,8 +251,8 @@ static int mid8250_probe(struct pci_dev
 	uart.port.flags = UPF_SHARE_IRQ | UPF_FIXED_PORT | UPF_FIXED_TYPE;
 	uart.port.set_termios = mid8250_set_termios;
 
-	uart.port.mapbase = pci_resource_start(pdev, 0);
-	uart.port.membase = pcim_iomap(pdev, 0, 0);
+	uart.port.mapbase = pci_resource_start(pdev, bar);
+	uart.port.membase = pcim_iomap(pdev, bar, 0);
 	if (!uart.port.membase)
 		return -ENOMEM;
 
@@ -282,18 +291,21 @@ static void mid8250_remove(struct pci_de
 }
 
 static const struct mid8250_board pnw_board = {
+	.flags = FL_BASE0,
 	.freq = 50000000,
 	.base_baud = 115200,
 	.setup = pnw_setup,
 };
 
 static const struct mid8250_board tng_board = {
+	.flags = FL_BASE0,
 	.freq = 38400000,
 	.base_baud = 1843200,
 	.setup = tng_setup,
 };
 
 static const struct mid8250_board dnv_board = {
+	.flags = FL_BASE1,
 	.freq = 133333333,
 	.base_baud = 115200,
 	.setup = dnv_setup,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/tty/serial/8250/8250_omap.c linux-libre-4.4.107-gnu/drivers/tty/serial/8250/8250_omap.c
--- linux-libre-4.4-gnu/drivers/tty/serial/8250/8250_omap.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/tty/serial/8250/8250_omap.c	2017-12-20 04:05:01.000000000 -0500
@@ -1235,7 +1235,8 @@ static int omap8250_probe(struct platfor
 	pm_runtime_put_autosuspend(&pdev->dev);
 	return 0;
 err:
-	pm_runtime_put(&pdev->dev);
+	pm_runtime_dont_use_autosuspend(&pdev->dev);
+	pm_runtime_put_sync(&pdev->dev);
 	pm_runtime_disable(&pdev->dev);
 	return ret;
 }
@@ -1244,6 +1245,7 @@ static int omap8250_remove(struct platfo
 {
 	struct omap8250_priv *priv = platform_get_drvdata(pdev);
 
+	pm_runtime_dont_use_autosuspend(&pdev->dev);
 	pm_runtime_put_sync(&pdev->dev);
 	pm_runtime_disable(&pdev->dev);
 	serial8250_unregister_port(priv->line);
@@ -1343,6 +1345,10 @@ static int omap8250_runtime_suspend(stru
 	struct omap8250_priv *priv = dev_get_drvdata(dev);
 	struct uart_8250_port *up;
 
+	/* In case runtime-pm tries this before we are setup */
+	if (!priv)
+		return 0;
+
 	up = serial8250_get_port(priv->line);
 	/*
 	 * When using 'no_console_suspend', the console UART must not be
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/tty/serial/8250/8250_pci.c linux-libre-4.4.107-gnu/drivers/tty/serial/8250/8250_pci.c
--- linux-libre-4.4-gnu/drivers/tty/serial/8250/8250_pci.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/tty/serial/8250/8250_pci.c	2017-12-20 04:05:01.000000000 -0500
@@ -57,6 +57,7 @@ struct serial_private {
 	unsigned int		nr;
 	void __iomem		*remapped_bar[PCI_NUM_BAR_RESOURCES];
 	struct pci_serial_quirk	*quirk;
+	const struct pciserial_board *board;
 	int			line[0];
 };
 
@@ -1379,6 +1380,9 @@ ce4100_serial_setup(struct serial_privat
 #define PCI_DEVICE_ID_INTEL_BSW_UART1	0x228a
 #define PCI_DEVICE_ID_INTEL_BSW_UART2	0x228c
 
+#define PCI_DEVICE_ID_INTEL_BDW_UART1	0x9ce3
+#define PCI_DEVICE_ID_INTEL_BDW_UART2	0x9ce4
+
 #define BYT_PRV_CLK			0x800
 #define BYT_PRV_CLK_EN			(1 << 0)
 #define BYT_PRV_CLK_M_VAL_SHIFT		1
@@ -1398,6 +1402,9 @@ byt_set_termios(struct uart_port *p, str
 	unsigned long m, n;
 	u32 reg;
 
+	/* Gracefully handle the B0 case: fall back to B9600 */
+	fuart = fuart ? fuart : 9600 * 16;
+
 	/* Get Fuart closer to Fref */
 	fuart *= rounddown_pow_of_two(fref / fuart);
 
@@ -1461,11 +1468,13 @@ byt_serial_setup(struct serial_private *
 	switch (pdev->device) {
 	case PCI_DEVICE_ID_INTEL_BYT_UART1:
 	case PCI_DEVICE_ID_INTEL_BSW_UART1:
+	case PCI_DEVICE_ID_INTEL_BDW_UART1:
 		rx_param->src_id = 3;
 		tx_param->dst_id = 2;
 		break;
 	case PCI_DEVICE_ID_INTEL_BYT_UART2:
 	case PCI_DEVICE_ID_INTEL_BSW_UART2:
+	case PCI_DEVICE_ID_INTEL_BDW_UART2:
 		rx_param->src_id = 5;
 		tx_param->dst_id = 4;
 		break;
@@ -1936,6 +1945,7 @@ pci_wch_ch38x_setup(struct serial_privat
 #define PCIE_VENDOR_ID_WCH		0x1c00
 #define PCIE_DEVICE_ID_WCH_CH382_2S1P	0x3250
 #define PCIE_DEVICE_ID_WCH_CH384_4S	0x3470
+#define PCIE_DEVICE_ID_WCH_CH382_2S	0x3253
 
 #define PCI_VENDOR_ID_PERICOM			0x12D8
 #define PCI_DEVICE_ID_PERICOM_PI7C9X7951	0x7951
@@ -1943,6 +1953,43 @@ pci_wch_ch38x_setup(struct serial_privat
 #define PCI_DEVICE_ID_PERICOM_PI7C9X7954	0x7954
 #define PCI_DEVICE_ID_PERICOM_PI7C9X7958	0x7958
 
+#define PCI_VENDOR_ID_ACCESIO			0x494f
+#define PCI_DEVICE_ID_ACCESIO_PCIE_COM_2SDB	0x1051
+#define PCI_DEVICE_ID_ACCESIO_MPCIE_COM_2S	0x1053
+#define PCI_DEVICE_ID_ACCESIO_PCIE_COM_4SDB	0x105C
+#define PCI_DEVICE_ID_ACCESIO_MPCIE_COM_4S	0x105E
+#define PCI_DEVICE_ID_ACCESIO_PCIE_COM232_2DB	0x1091
+#define PCI_DEVICE_ID_ACCESIO_MPCIE_COM232_2	0x1093
+#define PCI_DEVICE_ID_ACCESIO_PCIE_COM232_4DB	0x1099
+#define PCI_DEVICE_ID_ACCESIO_MPCIE_COM232_4	0x109B
+#define PCI_DEVICE_ID_ACCESIO_PCIE_COM_2SMDB	0x10D1
+#define PCI_DEVICE_ID_ACCESIO_MPCIE_COM_2SM	0x10D3
+#define PCI_DEVICE_ID_ACCESIO_PCIE_COM_4SMDB	0x10DA
+#define PCI_DEVICE_ID_ACCESIO_MPCIE_COM_4SM	0x10DC
+#define PCI_DEVICE_ID_ACCESIO_MPCIE_ICM485_1	0x1108
+#define PCI_DEVICE_ID_ACCESIO_MPCIE_ICM422_2	0x1110
+#define PCI_DEVICE_ID_ACCESIO_MPCIE_ICM485_2	0x1111
+#define PCI_DEVICE_ID_ACCESIO_MPCIE_ICM422_4	0x1118
+#define PCI_DEVICE_ID_ACCESIO_MPCIE_ICM485_4	0x1119
+#define PCI_DEVICE_ID_ACCESIO_PCIE_ICM_2S	0x1152
+#define PCI_DEVICE_ID_ACCESIO_PCIE_ICM_4S	0x115A
+#define PCI_DEVICE_ID_ACCESIO_PCIE_ICM232_2	0x1190
+#define PCI_DEVICE_ID_ACCESIO_MPCIE_ICM232_2	0x1191
+#define PCI_DEVICE_ID_ACCESIO_PCIE_ICM232_4	0x1198
+#define PCI_DEVICE_ID_ACCESIO_MPCIE_ICM232_4	0x1199
+#define PCI_DEVICE_ID_ACCESIO_PCIE_ICM_2SM	0x11D0
+#define PCI_DEVICE_ID_ACCESIO_PCIE_COM422_4	0x105A
+#define PCI_DEVICE_ID_ACCESIO_PCIE_COM485_4	0x105B
+#define PCI_DEVICE_ID_ACCESIO_PCIE_COM422_8	0x106A
+#define PCI_DEVICE_ID_ACCESIO_PCIE_COM485_8	0x106B
+#define PCI_DEVICE_ID_ACCESIO_PCIE_COM232_4	0x1098
+#define PCI_DEVICE_ID_ACCESIO_PCIE_COM232_8	0x10A9
+#define PCI_DEVICE_ID_ACCESIO_PCIE_COM_4SM	0x10D9
+#define PCI_DEVICE_ID_ACCESIO_PCIE_COM_8SM	0x10E9
+#define PCI_DEVICE_ID_ACCESIO_PCIE_ICM_4SM	0x11D8
+
+
+
 /* Unknown vendors/cards - this should not be in linux/pci_ids.h */
 #define PCI_SUBDEVICE_ID_UNKNOWN_0x1584	0x1584
 #define PCI_SUBDEVICE_ID_UNKNOWN_0x1588	0x1588
@@ -2062,6 +2109,20 @@ static struct pci_serial_quirk pci_seria
 		.subdevice	= PCI_ANY_ID,
 		.setup		= byt_serial_setup,
 	},
+	{
+		.vendor		= PCI_VENDOR_ID_INTEL,
+		.device		= PCI_DEVICE_ID_INTEL_BDW_UART1,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.setup		= byt_serial_setup,
+	},
+	{
+		.vendor		= PCI_VENDOR_ID_INTEL,
+		.device		= PCI_DEVICE_ID_INTEL_BDW_UART2,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.setup		= byt_serial_setup,
+	},
 	/*
 	 * ITE
 	 */
@@ -2618,6 +2679,14 @@ static struct pci_serial_quirk pci_seria
 		.subdevice	= PCI_ANY_ID,
 		.setup		= pci_wch_ch353_setup,
 	},
+	/* WCH CH382 2S card (16850 clone) */
+	{
+		.vendor         = PCIE_VENDOR_ID_WCH,
+		.device         = PCIE_DEVICE_ID_WCH_CH382_2S,
+		.subvendor      = PCI_ANY_ID,
+		.subdevice      = PCI_ANY_ID,
+		.setup          = pci_wch_ch38x_setup,
+	},
 	/* WCH CH382 2S1P card (16850 clone) */
 	{
 		.vendor         = PCIE_VENDOR_ID_WCH,
@@ -2812,6 +2881,8 @@ enum pci_board_num_t {
 	pbn_b0_4_1152000_200,
 	pbn_b0_8_1152000_200,
 
+	pbn_b0_4_1250000,
+
 	pbn_b0_2_1843200,
 	pbn_b0_4_1843200,
 
@@ -2936,6 +3007,7 @@ enum pci_board_num_t {
 	pbn_fintek_4,
 	pbn_fintek_8,
 	pbn_fintek_12,
+	pbn_wch382_2,
 	pbn_wch384_4,
 	pbn_pericom_PI7C9X7951,
 	pbn_pericom_PI7C9X7952,
@@ -3044,6 +3116,13 @@ static struct pciserial_board pci_boards
 		.uart_offset	= 0x200,
 	},
 
+	[pbn_b0_4_1250000] = {
+		.flags		= FL_BASE0,
+		.num_ports	= 4,
+		.base_baud	= 1250000,
+		.uart_offset	= 8,
+	},
+
 	[pbn_b0_2_1843200] = {
 		.flags		= FL_BASE0,
 		.num_ports	= 2,
@@ -3756,6 +3835,13 @@ static struct pciserial_board pci_boards
 		.base_baud	= 115200,
 		.first_offset	= 0x40,
 	},
+	[pbn_wch382_2] = {
+		.flags		= FL_BASE0,
+		.num_ports	= 2,
+		.base_baud	= 115200,
+		.uart_offset	= 8,
+		.first_offset	= 0xC0,
+	},
 	[pbn_wch384_4] = {
 		.flags		= FL_BASE0,
 		.num_ports	= 4,
@@ -3973,6 +4059,7 @@ pciserial_init_ports(struct pci_dev *dev
 		}
 	}
 	priv->nr = i;
+	priv->board = board;
 	return priv;
 
 err_deinit:
@@ -3983,7 +4070,7 @@ err_out:
 }
 EXPORT_SYMBOL_GPL(pciserial_init_ports);
 
-void pciserial_remove_ports(struct serial_private *priv)
+void pciserial_detach_ports(struct serial_private *priv)
 {
 	struct pci_serial_quirk *quirk;
 	int i;
@@ -4003,7 +4090,11 @@ void pciserial_remove_ports(struct seria
 	quirk = find_quirk(priv->dev);
 	if (quirk->exit)
 		quirk->exit(priv->dev);
+}
 
+void pciserial_remove_ports(struct serial_private *priv)
+{
+	pciserial_detach_ports(priv);
 	kfree(priv);
 }
 EXPORT_SYMBOL_GPL(pciserial_remove_ports);
@@ -5081,6 +5172,108 @@ static struct pci_device_id serial_pci_t
 		0,
 		0, pbn_pericom_PI7C9X7958 },
 	/*
+	 * ACCES I/O Products quad
+	 */
+	{	PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_PCIE_COM_2SDB,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_pericom_PI7C9X7954 },
+	{	PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_MPCIE_COM_2S,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_pericom_PI7C9X7954 },
+	{	PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_PCIE_COM_4SDB,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_pericom_PI7C9X7954 },
+	{	PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_MPCIE_COM_4S,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_pericom_PI7C9X7954 },
+	{	PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_PCIE_COM232_2DB,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_pericom_PI7C9X7954 },
+	{	PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_MPCIE_COM232_2,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_pericom_PI7C9X7954 },
+	{	PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_PCIE_COM232_4DB,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_pericom_PI7C9X7954 },
+	{	PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_MPCIE_COM232_4,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_pericom_PI7C9X7954 },
+	{	PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_PCIE_COM_2SMDB,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_pericom_PI7C9X7954 },
+	{	PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_MPCIE_COM_2SM,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_pericom_PI7C9X7954 },
+	{	PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_PCIE_COM_4SMDB,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_pericom_PI7C9X7954 },
+	{	PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_MPCIE_COM_4SM,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_pericom_PI7C9X7954 },
+	{	PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_MPCIE_ICM485_1,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_pericom_PI7C9X7954 },
+	{	PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_MPCIE_ICM422_2,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_pericom_PI7C9X7954 },
+	{	PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_MPCIE_ICM485_2,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_pericom_PI7C9X7954 },
+	{	PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_MPCIE_ICM422_4,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_pericom_PI7C9X7954 },
+	{	PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_MPCIE_ICM485_4,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_pericom_PI7C9X7954 },
+	{	PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_PCIE_ICM_2S,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_pericom_PI7C9X7954 },
+	{	PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_PCIE_ICM_4S,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_pericom_PI7C9X7954 },
+	{	PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_PCIE_ICM232_2,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_pericom_PI7C9X7954 },
+	{	PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_MPCIE_ICM232_2,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_pericom_PI7C9X7954 },
+	{	PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_PCIE_ICM232_4,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_pericom_PI7C9X7954 },
+	{	PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_MPCIE_ICM232_4,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_pericom_PI7C9X7954 },
+	{	PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_PCIE_ICM_2SM,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_pericom_PI7C9X7954 },
+	{	PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_PCIE_COM422_4,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_pericom_PI7C9X7958 },
+	{	PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_PCIE_COM485_4,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_pericom_PI7C9X7958 },
+	{	PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_PCIE_COM422_8,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_pericom_PI7C9X7958 },
+	{	PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_PCIE_COM485_8,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_pericom_PI7C9X7958 },
+	{	PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_PCIE_COM232_4,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_pericom_PI7C9X7958 },
+	{	PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_PCIE_COM232_8,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_pericom_PI7C9X7958 },
+	{	PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_PCIE_COM_4SM,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_pericom_PI7C9X7958 },
+	{	PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_PCIE_COM_8SM,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_pericom_PI7C9X7958 },
+	{	PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_PCIE_ICM_4SM,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_pericom_PI7C9X7958 },
+	/*
 	 * Topic TP560 Data/Fax/Voice 56k modem (reported by Evan Clarke)
 	 */
 	{	PCI_VENDOR_ID_TOPIC, PCI_DEVICE_ID_TOPIC_TP560,
@@ -5506,6 +5699,16 @@ static struct pci_device_id serial_pci_t
 		PCI_CLASS_COMMUNICATION_SERIAL << 8, 0xff0000,
 		pbn_byt },
 
+	/* Intel Broadwell */
+	{	PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_BDW_UART1,
+		PCI_ANY_ID,  PCI_ANY_ID,
+		PCI_CLASS_COMMUNICATION_SERIAL << 8, 0xff0000,
+		pbn_byt },
+	{	PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_BDW_UART2,
+		PCI_ANY_ID,  PCI_ANY_ID,
+		PCI_CLASS_COMMUNICATION_SERIAL << 8, 0xff0000,
+		pbn_byt },
+
 	/*
 	 * Intel Quark x1000
 	 */
@@ -5545,6 +5748,10 @@ static struct pci_device_id serial_pci_t
 		PCI_ANY_ID, PCI_ANY_ID,
 		0, 0, pbn_b0_bt_2_115200 },
 
+	{	PCIE_VENDOR_ID_WCH, PCIE_DEVICE_ID_WCH_CH382_2S,
+		PCI_ANY_ID, PCI_ANY_ID,
+		0, 0, pbn_wch382_2 },
+
 	{	PCIE_VENDOR_ID_WCH, PCIE_DEVICE_ID_WCH_CH384_4S,
 		PCI_ANY_ID, PCI_ANY_ID,
 		0, 0, pbn_wch384_4 },
@@ -5586,6 +5793,13 @@ static struct pci_device_id serial_pci_t
 	{ PCI_DEVICE(0x1c29, 0x1108), .driver_data = pbn_fintek_8 },
 	{ PCI_DEVICE(0x1c29, 0x1112), .driver_data = pbn_fintek_12 },
 
+	/* MKS Tenta SCOM-080x serial cards */
+	{ PCI_DEVICE(0x1601, 0x0800), .driver_data = pbn_b0_4_1250000 },
+	{ PCI_DEVICE(0x1601, 0xa801), .driver_data = pbn_b0_4_1250000 },
+
+	/* Amazon PCI serial device */
+	{ PCI_DEVICE(0x1d0f, 0x8250), .driver_data = pbn_b0_1_115200 },
+
 	/*
 	 * These entries match devices with class COMMUNICATION_SERIAL,
 	 * COMMUNICATION_MODEM or COMMUNICATION_MULTISERIAL
@@ -5614,7 +5828,7 @@ static pci_ers_result_t serial8250_io_er
 		return PCI_ERS_RESULT_DISCONNECT;
 
 	if (priv)
-		pciserial_suspend_ports(priv);
+		pciserial_detach_ports(priv);
 
 	pci_disable_device(dev);
 
@@ -5639,9 +5853,16 @@ static pci_ers_result_t serial8250_io_sl
 static void serial8250_io_resume(struct pci_dev *dev)
 {
 	struct serial_private *priv = pci_get_drvdata(dev);
+	struct serial_private *new;
 
-	if (priv)
-		pciserial_resume_ports(priv);
+	if (!priv)
+		return;
+
+	new = pciserial_init_ports(dev, priv->board);
+	if (!IS_ERR(new)) {
+		pci_set_drvdata(dev, new);
+		kfree(priv);
+	}
 }
 
 static const struct pci_error_handlers serial8250_err_handler = {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/tty/serial/8250/8250_port.c linux-libre-4.4.107-gnu/drivers/tty/serial/8250/8250_port.c
--- linux-libre-4.4-gnu/drivers/tty/serial/8250/8250_port.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/tty/serial/8250/8250_port.c	2017-12-20 04:05:01.000000000 -0500
@@ -713,22 +713,16 @@ static int size_fifo(struct uart_8250_po
  */
 static unsigned int autoconfig_read_divisor_id(struct uart_8250_port *p)
 {
-	unsigned char old_dll, old_dlm, old_lcr;
-	unsigned int id;
+	unsigned char old_lcr;
+	unsigned int id, old_dl;
 
 	old_lcr = serial_in(p, UART_LCR);
 	serial_out(p, UART_LCR, UART_LCR_CONF_MODE_A);
+	old_dl = serial_dl_read(p);
+	serial_dl_write(p, 0);
+	id = serial_dl_read(p);
+	serial_dl_write(p, old_dl);
 
-	old_dll = serial_in(p, UART_DLL);
-	old_dlm = serial_in(p, UART_DLM);
-
-	serial_out(p, UART_DLL, 0);
-	serial_out(p, UART_DLM, 0);
-
-	id = serial_in(p, UART_DLL) | serial_in(p, UART_DLM) << 8;
-
-	serial_out(p, UART_DLL, old_dll);
-	serial_out(p, UART_DLM, old_dlm);
 	serial_out(p, UART_LCR, old_lcr);
 
 	return id;
@@ -2229,8 +2223,11 @@ static void serial8250_set_divisor(struc
 	serial_dl_write(up, quot);
 
 	/* XR17V35x UARTs have an extra fractional divisor register (DLD) */
-	if (up->port.type == PORT_XR17V35X)
+	if (up->port.type == PORT_XR17V35X) {
+		/* Preserve bits not related to baudrate; DLD[7:4]. */
+		quot_frac |= serial_port_in(port, 0x2) & 0xf0;
 		serial_port_out(port, 0x2, quot_frac);
+	}
 }
 
 static unsigned int
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/tty/serial/atmel_serial.c linux-libre-4.4.107-gnu/drivers/tty/serial/atmel_serial.c
--- linux-libre-4.4-gnu/drivers/tty/serial/atmel_serial.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/tty/serial/atmel_serial.c	2017-12-20 04:05:01.000000000 -0500
@@ -277,6 +277,13 @@ static bool atmel_use_dma_rx(struct uart
 	return atmel_port->use_dma_rx;
 }
 
+static bool atmel_use_fifo(struct uart_port *port)
+{
+	struct atmel_uart_port *atmel_port = to_atmel_uart_port(port);
+
+	return atmel_port->fifo_size;
+}
+
 static unsigned int atmel_get_lines_status(struct uart_port *port)
 {
 	struct atmel_uart_port *atmel_port = to_atmel_uart_port(port);
@@ -463,6 +470,14 @@ static void atmel_stop_tx(struct uart_po
 		/* disable PDC transmit */
 		atmel_uart_writel(port, ATMEL_PDC_PTCR, ATMEL_PDC_TXTDIS);
 	}
+
+	/*
+	 * Disable the transmitter.
+	 * This is mandatory when DMA is used, otherwise the DMA buffer
+	 * is fully transmitted.
+	 */
+	atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_TXDIS);
+
 	/* Disable interrupts */
 	atmel_uart_writel(port, ATMEL_US_IDR, atmel_port->tx_done_mask);
 
@@ -478,21 +493,26 @@ static void atmel_start_tx(struct uart_p
 {
 	struct atmel_uart_port *atmel_port = to_atmel_uart_port(port);
 
-	if (atmel_use_pdc_tx(port)) {
-		if (atmel_uart_readl(port, ATMEL_PDC_PTSR) & ATMEL_PDC_TXTEN)
-			/* The transmitter is already running.  Yes, we
-			   really need this.*/
-			return;
+	if (atmel_use_pdc_tx(port) && (atmel_uart_readl(port, ATMEL_PDC_PTSR)
+				       & ATMEL_PDC_TXTEN))
+		/* The transmitter is already running.  Yes, we
+		   really need this.*/
+		return;
 
+	if (atmel_use_pdc_tx(port) || atmel_use_dma_tx(port))
 		if ((port->rs485.flags & SER_RS485_ENABLED) &&
 		    !(port->rs485.flags & SER_RS485_RX_DURING_TX))
 			atmel_stop_rx(port);
 
+	if (atmel_use_pdc_tx(port))
 		/* re-enable PDC transmit */
 		atmel_uart_writel(port, ATMEL_PDC_PTCR, ATMEL_PDC_TXTEN);
-	}
+
 	/* Enable interrupts */
 	atmel_uart_writel(port, ATMEL_US_IER, atmel_port->tx_done_mask);
+
+	/* re-enable the transmitter */
+	atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_TXEN);
 }
 
 /*
@@ -790,6 +810,11 @@ static void atmel_complete_tx_dma(void *
 	 */
 	if (!uart_circ_empty(xmit))
 		tasklet_schedule(&atmel_port->tasklet);
+	else if ((port->rs485.flags & SER_RS485_ENABLED) &&
+		 !(port->rs485.flags & SER_RS485_RX_DURING_TX)) {
+		/* DMA done, stop TX, start RX for RS485 */
+		atmel_start_rx(port);
+	}
 
 	spin_unlock_irqrestore(&port->lock, flags);
 }
@@ -892,12 +917,6 @@ static void atmel_tx_dma(struct uart_por
 		desc->callback = atmel_complete_tx_dma;
 		desc->callback_param = atmel_port;
 		atmel_port->cookie_tx = dmaengine_submit(desc);
-
-	} else {
-		if (port->rs485.flags & SER_RS485_ENABLED) {
-			/* DMA done, stop TX, start RX for RS485 */
-			atmel_start_rx(port);
-		}
 	}
 
 	if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)
@@ -1967,6 +1986,11 @@ static void atmel_flush_buffer(struct ua
 		atmel_uart_writel(port, ATMEL_PDC_TCR, 0);
 		atmel_port->pdc_tx.ofs = 0;
 	}
+	/*
+	 * in uart_flush_buffer(), the xmit circular buffer has just
+	 * been cleared, so we have to reset tx_len accordingly.
+	 */
+	atmel_port->tx_len = 0;
 }
 
 /*
@@ -2066,6 +2090,7 @@ static void atmel_serial_pm(struct uart_
 static void atmel_set_termios(struct uart_port *port, struct ktermios *termios,
 			      struct ktermios *old)
 {
+	struct atmel_uart_port *atmel_port = to_atmel_uart_port(port);
 	unsigned long flags;
 	unsigned int old_mode, mode, imr, quot, baud;
 
@@ -2169,7 +2194,30 @@ static void atmel_set_termios(struct uar
 		mode |= ATMEL_US_USMODE_RS485;
 	} else if (termios->c_cflag & CRTSCTS) {
 		/* RS232 with hardware handshake (RTS/CTS) */
-		mode |= ATMEL_US_USMODE_HWHS;
+		if (atmel_use_fifo(port) &&
+		    !mctrl_gpio_to_gpiod(atmel_port->gpios, UART_GPIO_CTS)) {
+			/*
+			 * with ATMEL_US_USMODE_HWHS set, the controller will
+			 * be able to drive the RTS pin high/low when the RX
+			 * FIFO is above RXFTHRES/below RXFTHRES2.
+			 * It will also disable the transmitter when the CTS
+			 * pin is high.
+			 * This mode is not activated if CTS pin is a GPIO
+			 * because in this case, the transmitter is always
+			 * disabled (there must be an internal pull-up
+			 * responsible for this behaviour).
+			 * If the RTS pin is a GPIO, the controller won't be
+			 * able to drive it according to the FIFO thresholds,
+			 * but it will be handled by the driver.
+			 */
+			mode |= ATMEL_US_USMODE_HWHS;
+		} else {
+			/*
+			 * For platforms without FIFO, the flow control is
+			 * handled by the driver.
+			 */
+			mode |= ATMEL_US_USMODE_NORMAL;
+		}
 	} else {
 		/* RS232 without hadware handshake */
 		mode |= ATMEL_US_USMODE_NORMAL;
@@ -2455,6 +2503,9 @@ static void atmel_console_write(struct c
 	pdc_tx = atmel_uart_readl(port, ATMEL_PDC_PTSR) & ATMEL_PDC_TXTEN;
 	atmel_uart_writel(port, ATMEL_PDC_PTCR, ATMEL_PDC_TXTDIS);
 
+	/* Make sure that tx path is actually able to send characters */
+	atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_TXEN);
+
 	uart_console_write(port, s, count, atmel_console_putchar);
 
 	/*
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/tty/serial/efm32-uart.c linux-libre-4.4.107-gnu/drivers/tty/serial/efm32-uart.c
--- linux-libre-4.4-gnu/drivers/tty/serial/efm32-uart.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/tty/serial/efm32-uart.c	2017-12-20 04:05:01.000000000 -0500
@@ -27,6 +27,7 @@
 #define UARTn_FRAME		0x04
 #define UARTn_FRAME_DATABITS__MASK	0x000f
 #define UARTn_FRAME_DATABITS(n)		((n) - 3)
+#define UARTn_FRAME_PARITY__MASK	0x0300
 #define UARTn_FRAME_PARITY_NONE		0x0000
 #define UARTn_FRAME_PARITY_EVEN		0x0200
 #define UARTn_FRAME_PARITY_ODD		0x0300
@@ -572,12 +573,16 @@ static void efm32_uart_console_get_optio
 			16 * (4 + (clkdiv >> 6)));
 
 	frame = efm32_uart_read32(efm_port, UARTn_FRAME);
-	if (frame & UARTn_FRAME_PARITY_ODD)
+	switch (frame & UARTn_FRAME_PARITY__MASK) {
+	case UARTn_FRAME_PARITY_ODD:
 		*parity = 'o';
-	else if (frame & UARTn_FRAME_PARITY_EVEN)
+		break;
+	case UARTn_FRAME_PARITY_EVEN:
 		*parity = 'e';
-	else
+		break;
+	default:
 		*parity = 'n';
+	}
 
 	*bits = (frame & UARTn_FRAME_DATABITS__MASK) -
 			UARTn_FRAME_DATABITS(4) + 4;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/tty/serial/ifx6x60.c linux-libre-4.4.107-gnu/drivers/tty/serial/ifx6x60.c
--- linux-libre-4.4-gnu/drivers/tty/serial/ifx6x60.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/tty/serial/ifx6x60.c	2017-12-20 04:05:01.000000000 -0500
@@ -1378,9 +1378,9 @@ static struct spi_driver ifx_spi_driver
 static void __exit ifx_spi_exit(void)
 {
 	/* unregister */
+	spi_unregister_driver(&ifx_spi_driver);
 	tty_unregister_driver(tty_drv);
 	put_tty_driver(tty_drv);
-	spi_unregister_driver(&ifx_spi_driver);
 	unregister_reboot_notifier(&ifx_modem_reboot_notifier_block);
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/tty/serial/msm_serial.c linux-libre-4.4.107-gnu/drivers/tty/serial/msm_serial.c
--- linux-libre-4.4-gnu/drivers/tty/serial/msm_serial.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/tty/serial/msm_serial.c	2017-12-20 04:05:01.000000000 -0500
@@ -726,7 +726,7 @@ static void msm_handle_tx(struct uart_po
 		return;
 	}
 
-	pio_count = CIRC_CNT(xmit->head, xmit->tail, UART_XMIT_SIZE);
+	pio_count = CIRC_CNT_TO_END(xmit->head, xmit->tail, UART_XMIT_SIZE);
 	dma_count = CIRC_CNT_TO_END(xmit->head, xmit->tail, UART_XMIT_SIZE);
 
 	dma_min = 1;	/* Always DMA */
@@ -1615,6 +1615,7 @@ static const struct of_device_id msm_mat
 	{ .compatible = "qcom,msm-uartdm" },
 	{}
 };
+MODULE_DEVICE_TABLE(of, msm_match_table);
 
 static struct platform_driver msm_platform_driver = {
 	.remove = msm_serial_remove,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/tty/serial/omap-serial.c linux-libre-4.4.107-gnu/drivers/tty/serial/omap-serial.c
--- linux-libre-4.4-gnu/drivers/tty/serial/omap-serial.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/tty/serial/omap-serial.c	2017-12-20 04:05:01.000000000 -0500
@@ -693,7 +693,7 @@ static void serial_omap_set_mctrl(struct
 	if ((mctrl & TIOCM_RTS) && (port->status & UPSTAT_AUTORTS))
 		up->efr |= UART_EFR_RTS;
 	else
-		up->efr &= UART_EFR_RTS;
+		up->efr &= ~UART_EFR_RTS;
 	serial_out(up, UART_EFR, up->efr);
 	serial_out(up, UART_LCR, lcr);
 
@@ -1343,7 +1343,7 @@ static inline void serial_omap_add_conso
 
 /* Enable or disable the rs485 support */
 static int
-serial_omap_config_rs485(struct uart_port *port, struct serial_rs485 *rs485conf)
+serial_omap_config_rs485(struct uart_port *port, struct serial_rs485 *rs485)
 {
 	struct uart_omap_port *up = to_uart_omap_port(port);
 	unsigned int mode;
@@ -1356,8 +1356,12 @@ serial_omap_config_rs485(struct uart_por
 	up->ier = 0;
 	serial_out(up, UART_IER, 0);
 
+	/* Clamp the delays to [0, 100ms] */
+	rs485->delay_rts_before_send = min(rs485->delay_rts_before_send, 100U);
+	rs485->delay_rts_after_send  = min(rs485->delay_rts_after_send, 100U);
+
 	/* store new config */
-	port->rs485 = *rs485conf;
+	port->rs485 = *rs485;
 
 	/*
 	 * Just as a precaution, only allow rs485
@@ -1708,7 +1712,8 @@ static int serial_omap_probe(struct plat
 	return 0;
 
 err_add_port:
-	pm_runtime_put(&pdev->dev);
+	pm_runtime_dont_use_autosuspend(&pdev->dev);
+	pm_runtime_put_sync(&pdev->dev);
 	pm_runtime_disable(&pdev->dev);
 	pm_qos_remove_request(&up->pm_qos_request);
 	device_init_wakeup(up->dev, false);
@@ -1721,9 +1726,13 @@ static int serial_omap_remove(struct pla
 {
 	struct uart_omap_port *up = platform_get_drvdata(dev);
 
+	pm_runtime_get_sync(up->dev);
+
+	uart_remove_one_port(&serial_omap_reg, &up->port);
+
+	pm_runtime_dont_use_autosuspend(up->dev);
 	pm_runtime_put_sync(up->dev);
 	pm_runtime_disable(up->dev);
-	uart_remove_one_port(&serial_omap_reg, &up->port);
 	pm_qos_remove_request(&up->pm_qos_request);
 	device_init_wakeup(&dev->dev, false);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/tty/serial/samsung.c linux-libre-4.4.107-gnu/drivers/tty/serial/samsung.c
--- linux-libre-4.4-gnu/drivers/tty/serial/samsung.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/tty/serial/samsung.c	2017-12-20 04:05:01.000000000 -0500
@@ -900,14 +900,13 @@ static int s3c24xx_serial_request_dma(st
 		return -ENOMEM;
 	}
 
-	dma->rx_addr = dma_map_single(dma->rx_chan->device->dev, dma->rx_buf,
+	dma->rx_addr = dma_map_single(p->port.dev, dma->rx_buf,
 				dma->rx_size, DMA_FROM_DEVICE);
 
 	spin_lock_irqsave(&p->port.lock, flags);
 
 	/* TX buffer */
-	dma->tx_addr = dma_map_single(dma->tx_chan->device->dev,
-				p->port.state->xmit.buf,
+	dma->tx_addr = dma_map_single(p->port.dev, p->port.state->xmit.buf,
 				UART_XMIT_SIZE, DMA_TO_DEVICE);
 
 	spin_unlock_irqrestore(&p->port.lock, flags);
@@ -921,7 +920,7 @@ static void s3c24xx_serial_release_dma(s
 
 	if (dma->rx_chan) {
 		dmaengine_terminate_all(dma->rx_chan);
-		dma_unmap_single(dma->rx_chan->device->dev, dma->rx_addr,
+		dma_unmap_single(p->port.dev, dma->rx_addr,
 				dma->rx_size, DMA_FROM_DEVICE);
 		kfree(dma->rx_buf);
 		dma_release_channel(dma->rx_chan);
@@ -930,7 +929,7 @@ static void s3c24xx_serial_release_dma(s
 
 	if (dma->tx_chan) {
 		dmaengine_terminate_all(dma->tx_chan);
-		dma_unmap_single(dma->tx_chan->device->dev, dma->tx_addr,
+		dma_unmap_single(p->port.dev, dma->tx_addr,
 				UART_XMIT_SIZE, DMA_TO_DEVICE);
 		dma_release_channel(dma->tx_chan);
 		dma->tx_chan = NULL;
@@ -1030,8 +1029,10 @@ static int s3c64xx_serial_startup(struct
 	if (ourport->dma) {
 		ret = s3c24xx_serial_request_dma(ourport);
 		if (ret < 0) {
-			dev_warn(port->dev, "DMA request failed\n");
-			return ret;
+			dev_warn(port->dev,
+				 "DMA request failed, DMA will not be used\n");
+			devm_kfree(port->dev, ourport->dma);
+			ourport->dma = NULL;
 		}
 	}
 
@@ -1263,6 +1264,8 @@ static void s3c24xx_serial_set_termios(s
 	/* check to see if we need  to change clock source */
 
 	if (ourport->baudclk != clk) {
+		clk_prepare_enable(clk);
+
 		s3c24xx_serial_setsource(port, clk_sel);
 
 		if (!IS_ERR(ourport->baudclk)) {
@@ -1270,8 +1273,6 @@ static void s3c24xx_serial_set_termios(s
 			ourport->baudclk = ERR_PTR(-EINVAL);
 		}
 
-		clk_prepare_enable(clk);
-
 		ourport->baudclk = clk;
 		ourport->baudclk_rate = clk ? clk_get_rate(clk) : 0;
 	}
@@ -1676,7 +1677,7 @@ static int s3c24xx_serial_init_port(stru
 		return -ENODEV;
 
 	if (port->mapbase != 0)
-		return 0;
+		return -EINVAL;
 
 	/* setup info for port */
 	port->dev	= &platdev->dev;
@@ -1730,22 +1731,25 @@ static int s3c24xx_serial_init_port(stru
 		ourport->dma = devm_kzalloc(port->dev,
 					    sizeof(*ourport->dma),
 					    GFP_KERNEL);
-		if (!ourport->dma)
-			return -ENOMEM;
+		if (!ourport->dma) {
+			ret = -ENOMEM;
+			goto err;
+		}
 	}
 
 	ourport->clk	= clk_get(&platdev->dev, "uart");
 	if (IS_ERR(ourport->clk)) {
 		pr_err("%s: Controller clock not found\n",
 				dev_name(&platdev->dev));
-		return PTR_ERR(ourport->clk);
+		ret = PTR_ERR(ourport->clk);
+		goto err;
 	}
 
 	ret = clk_prepare_enable(ourport->clk);
 	if (ret) {
 		pr_err("uart: clock failed to prepare+enable: %d\n", ret);
 		clk_put(ourport->clk);
-		return ret;
+		goto err;
 	}
 
 	/* Keep all interrupts masked and cleared */
@@ -1761,7 +1765,12 @@ static int s3c24xx_serial_init_port(stru
 
 	/* reset the fifos (and setup the uart) */
 	s3c24xx_serial_resetport(port, cfg);
+
 	return 0;
+
+err:
+	port->mapbase = 0;
+	return ret;
 }
 
 /* Device driver serial port probe */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/tty/serial/sc16is7xx.c linux-libre-4.4.107-gnu/drivers/tty/serial/sc16is7xx.c
--- linux-libre-4.4-gnu/drivers/tty/serial/sc16is7xx.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/tty/serial/sc16is7xx.c	2017-12-20 04:05:01.000000000 -0500
@@ -1230,7 +1230,7 @@ static int sc16is7xx_probe(struct device
 
 	/* Setup interrupt */
 	ret = devm_request_irq(dev, irq, sc16is7xx_irq,
-			       IRQF_ONESHOT | flags, dev_name(dev), s);
+			       flags, dev_name(dev), s);
 	if (!ret)
 		return 0;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/tty/serial/sh-sci.c linux-libre-4.4.107-gnu/drivers/tty/serial/sh-sci.c
--- linux-libre-4.4-gnu/drivers/tty/serial/sh-sci.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/tty/serial/sh-sci.c	2017-12-20 04:05:01.000000000 -0500
@@ -38,7 +38,6 @@
 #include <linux/major.h>
 #include <linux/module.h>
 #include <linux/mm.h>
-#include <linux/notifier.h>
 #include <linux/of.h>
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
@@ -116,8 +115,6 @@ struct sci_port {
 	struct timer_list		rx_timer;
 	unsigned int			rx_timeout;
 #endif
-
-	struct notifier_block		freq_transition;
 };
 
 #define SCI_NPORTS CONFIG_SERIAL_SH_SCI_NR_UARTS
@@ -166,18 +163,17 @@ static const struct plat_sci_reg sci_reg
 	},
 
 	/*
-	 * Common definitions for legacy IrDA ports, dependent on
-	 * regshift value.
+	 * Common definitions for legacy IrDA ports.
 	 */
 	[SCIx_IRDA_REGTYPE] = {
 		[SCSMR]		= { 0x00,  8 },
-		[SCBRR]		= { 0x01,  8 },
-		[SCSCR]		= { 0x02,  8 },
-		[SCxTDR]	= { 0x03,  8 },
-		[SCxSR]		= { 0x04,  8 },
-		[SCxRDR]	= { 0x05,  8 },
-		[SCFCR]		= { 0x06,  8 },
-		[SCFDR]		= { 0x07, 16 },
+		[SCBRR]		= { 0x02,  8 },
+		[SCSCR]		= { 0x04,  8 },
+		[SCxTDR]	= { 0x06,  8 },
+		[SCxSR]		= { 0x08, 16 },
+		[SCxRDR]	= { 0x0a,  8 },
+		[SCFCR]		= { 0x0c,  8 },
+		[SCFDR]		= { 0x0e, 16 },
 		[SCTFDR]	= sci_reg_invalid,
 		[SCRFDR]	= sci_reg_invalid,
 		[SCSPTR]	= sci_reg_invalid,
@@ -1606,29 +1602,6 @@ static irqreturn_t sci_mpxed_interrupt(i
 	return ret;
 }
 
-/*
- * Here we define a transition notifier so that we can update all of our
- * ports' baud rate when the peripheral clock changes.
- */
-static int sci_notifier(struct notifier_block *self,
-			unsigned long phase, void *p)
-{
-	struct sci_port *sci_port;
-	unsigned long flags;
-
-	sci_port = container_of(self, struct sci_port, freq_transition);
-
-	if (phase == CPUFREQ_POSTCHANGE) {
-		struct uart_port *port = &sci_port->port;
-
-		spin_lock_irqsave(&port->lock, flags);
-		port->uartclk = clk_get_rate(sci_port->iclk);
-		spin_unlock_irqrestore(&port->lock, flags);
-	}
-
-	return NOTIFY_OK;
-}
-
 static const struct sci_irq_desc {
 	const char	*desc;
 	irq_handler_t	handler;
@@ -1826,11 +1799,13 @@ static int sci_startup(struct uart_port
 
 	dev_dbg(port->dev, "%s(%d)\n", __func__, port->line);
 
+	sci_request_dma(port);
+
 	ret = sci_request_irq(s);
-	if (unlikely(ret < 0))
+	if (unlikely(ret < 0)) {
+		sci_free_dma(port);
 		return ret;
-
-	sci_request_dma(port);
+	}
 
 	spin_lock_irqsave(&port->lock, flags);
 	sci_start_tx(port);
@@ -1860,8 +1835,8 @@ static void sci_shutdown(struct uart_por
 	}
 #endif
 
-	sci_free_dma(port);
 	sci_free_irq(s);
+	sci_free_dma(port);
 }
 
 static unsigned int sci_scbrr_calc(struct sci_port *s, unsigned int bps,
@@ -2559,9 +2534,6 @@ static int sci_remove(struct platform_de
 {
 	struct sci_port *port = platform_get_drvdata(dev);
 
-	cpufreq_unregister_notifier(&port->freq_transition,
-				    CPUFREQ_TRANSITION_NOTIFIER);
-
 	uart_remove_one_port(&sci_uart_driver, &port->port);
 
 	sci_cleanup_single(port);
@@ -2714,16 +2686,6 @@ static int sci_probe(struct platform_dev
 	if (ret)
 		return ret;
 
-	sp->freq_transition.notifier_call = sci_notifier;
-
-	ret = cpufreq_register_notifier(&sp->freq_transition,
-					CPUFREQ_TRANSITION_NOTIFIER);
-	if (unlikely(ret < 0)) {
-		uart_remove_one_port(&sci_uart_driver, &sp->port);
-		sci_cleanup_single(sp);
-		return ret;
-	}
-
 #ifdef CONFIG_SH_STANDARD_BIOS
 	sh_bios_gdb_detach();
 #endif
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/tty/serial/sunhv.c linux-libre-4.4.107-gnu/drivers/tty/serial/sunhv.c
--- linux-libre-4.4-gnu/drivers/tty/serial/sunhv.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/tty/serial/sunhv.c	2017-12-20 04:05:01.000000000 -0500
@@ -398,6 +398,12 @@ static struct uart_driver sunhv_reg = {
 
 static struct uart_port *sunhv_port;
 
+void sunhv_migrate_hvcons_irq(int cpu)
+{
+	/* Migrate hvcons irq to param cpu */
+	irq_force_affinity(sunhv_port->irq, cpumask_of(cpu));
+}
+
 /* Copy 's' into the con_write_page, decoding "\n" into
  * "\r\n" along the way.  We have to return two lengths
  * because the caller needs to know how much to advance
@@ -490,12 +496,6 @@ static void sunhv_console_write_bychar(s
 		locked = spin_trylock_irqsave(&port->lock, flags);
 	else
 		spin_lock_irqsave(&port->lock, flags);
-	if (port->sysrq) {
-		locked = 0;
-	} else if (oops_in_progress) {
-		locked = spin_trylock(&port->lock);
-	} else
-		spin_lock(&port->lock);
 
 	for (i = 0; i < n; i++) {
 		if (*s == '\n')
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/tty/serial/ucc_uart.c linux-libre-4.4.107-gnu/drivers/tty/serial/ucc_uart.c
--- linux-libre-4.4-gnu/drivers/tty/serial/ucc_uart.c	2016-01-10 21:12:58.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/tty/serial/ucc_uart.c	2017-12-20 11:40:56.000000000 -0500
@@ -1478,6 +1478,9 @@ static const struct of_device_id ucc_uar
 		.type = "serial",
 		.compatible = "ucc_uart",
 	},
+	{
+		.compatible = "fsl,t1040-ucc-uart",
+	},
 	{},
 };
 MODULE_DEVICE_TABLE(of, ucc_uart_match);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/tty/sysrq.c linux-libre-4.4.107-gnu/drivers/tty/sysrq.c
--- linux-libre-4.4-gnu/drivers/tty/sysrq.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/tty/sysrq.c	2017-12-20 04:05:01.000000000 -0500
@@ -237,8 +237,10 @@ static void sysrq_handle_showallcpus(int
 	 * architecture has no support for it:
 	 */
 	if (!trigger_all_cpu_backtrace()) {
-		struct pt_regs *regs = get_irq_regs();
+		struct pt_regs *regs = NULL;
 
+		if (in_irq())
+			regs = get_irq_regs();
 		if (regs) {
 			pr_info("CPU%d:\n", smp_processor_id());
 			show_regs(regs);
@@ -257,7 +259,10 @@ static struct sysrq_key_op sysrq_showall
 
 static void sysrq_handle_showregs(int key)
 {
-	struct pt_regs *regs = get_irq_regs();
+	struct pt_regs *regs = NULL;
+
+	if (in_irq())
+		regs = get_irq_regs();
 	if (regs)
 		show_regs(regs);
 	perf_event_print_debug();
@@ -939,8 +944,8 @@ static const struct input_device_id sysr
 	{
 		.flags = INPUT_DEVICE_ID_MATCH_EVBIT |
 				INPUT_DEVICE_ID_MATCH_KEYBIT,
-		.evbit = { BIT_MASK(EV_KEY) },
-		.keybit = { BIT_MASK(KEY_LEFTALT) },
+		.evbit = { [BIT_WORD(EV_KEY)] = BIT_MASK(EV_KEY) },
+		.keybit = { [BIT_WORD(KEY_LEFTALT)] = BIT_MASK(KEY_LEFTALT) },
 	},
 	{ },
 };
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/tty/tty_buffer.c linux-libre-4.4.107-gnu/drivers/tty/tty_buffer.c
--- linux-libre-4.4-gnu/drivers/tty/tty_buffer.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/tty/tty_buffer.c	2017-12-20 04:05:01.000000000 -0500
@@ -37,29 +37,6 @@
 
 #define TTY_BUFFER_PAGE	(((PAGE_SIZE - sizeof(struct tty_buffer)) / 2) & ~0xFF)
 
-/*
- * If all tty flip buffers have been processed by flush_to_ldisc() or
- * dropped by tty_buffer_flush(), check if the linked pty has been closed.
- * If so, wake the reader/poll to process
- */
-static inline void check_other_closed(struct tty_struct *tty)
-{
-	unsigned long flags, old;
-
-	/* transition from TTY_OTHER_CLOSED => TTY_OTHER_DONE must be atomic */
-	for (flags = ACCESS_ONCE(tty->flags);
-	     test_bit(TTY_OTHER_CLOSED, &flags);
-	     ) {
-		old = flags;
-		__set_bit(TTY_OTHER_DONE, &flags);
-		flags = cmpxchg(&tty->flags, old, flags);
-		if (old == flags) {
-			wake_up_interruptible(&tty->read_wait);
-			break;
-		}
-	}
-}
-
 /**
  *	tty_buffer_lock_exclusive	-	gain exclusive access to buffer
  *	tty_buffer_unlock_exclusive	-	release exclusive access
@@ -254,8 +231,6 @@ void tty_buffer_flush(struct tty_struct
 	if (ld && ld->ops->flush_buffer)
 		ld->ops->flush_buffer(tty);
 
-	check_other_closed(tty);
-
 	atomic_dec(&buf->priority);
 	mutex_unlock(&buf->lock);
 }
@@ -387,6 +362,32 @@ int tty_insert_flip_string_flags(struct
 EXPORT_SYMBOL(tty_insert_flip_string_flags);
 
 /**
+ *	__tty_insert_flip_char   -	Add one character to the tty buffer
+ *	@port: tty port
+ *	@ch: character
+ *	@flag: flag byte
+ *
+ *	Queue a single byte to the tty buffering, with an optional flag.
+ *	This is the slow path of tty_insert_flip_char.
+ */
+int __tty_insert_flip_char(struct tty_port *port, unsigned char ch, char flag)
+{
+	struct tty_buffer *tb;
+	int flags = (flag == TTY_NORMAL) ? TTYB_NORMAL : 0;
+
+	if (!__tty_buffer_request_room(port, 1, flags))
+		return 0;
+
+	tb = port->buf.tail;
+	if (~tb->flags & TTYB_NORMAL)
+		*flag_buf_ptr(tb, tb->used) = flag;
+	*char_buf_ptr(tb, tb->used++) = ch;
+
+	return 1;
+}
+EXPORT_SYMBOL(__tty_insert_flip_char);
+
+/**
  *	tty_schedule_flip	-	push characters to ldisc
  *	@port: tty port to push from
  *
@@ -505,10 +506,8 @@ static void flush_to_ldisc(struct work_s
 		 */
 		count = smp_load_acquire(&head->commit) - head->read;
 		if (!count) {
-			if (next == NULL) {
-				check_other_closed(tty);
+			if (next == NULL)
 				break;
-			}
 			buf->head = next;
 			tty_buffer_free(port, head);
 			continue;
@@ -597,3 +596,8 @@ bool tty_buffer_cancel_work(struct tty_p
 {
 	return cancel_work_sync(&port->buf.work);
 }
+
+void tty_buffer_flush_work(struct tty_port *port)
+{
+	flush_work(&port->buf.work);
+}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/tty/tty_io.c linux-libre-4.4.107-gnu/drivers/tty/tty_io.c
--- linux-libre-4.4-gnu/drivers/tty/tty_io.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/tty/tty_io.c	2017-12-20 04:05:01.000000000 -0500
@@ -1462,13 +1462,13 @@ static int tty_reopen(struct tty_struct
 {
 	struct tty_driver *driver = tty->driver;
 
-	if (!tty->count)
-		return -EIO;
-
 	if (driver->type == TTY_DRIVER_TYPE_PTY &&
 	    driver->subtype == PTY_TYPE_MASTER)
 		return -EIO;
 
+	if (!tty->count)
+		return -EAGAIN;
+
 	if (test_bit(TTY_EXCLUSIVE, &tty->flags) && !capable(CAP_SYS_ADMIN))
 		return -EBUSY;
 
@@ -2069,9 +2069,13 @@ retry_open:
 
 		if (tty) {
 			mutex_unlock(&tty_mutex);
-			tty_lock(tty);
-			/* safe to drop the kref from tty_driver_lookup_tty() */
-			tty_kref_put(tty);
+			retval = tty_lock_interruptible(tty);
+			tty_kref_put(tty);  /* drop kref from tty_driver_lookup_tty() */
+			if (retval) {
+				if (retval == -EINTR)
+					retval = -ERESTARTSYS;
+				goto err_unref;
+			}
 			retval = tty_reopen(tty);
 			if (retval < 0) {
 				tty_unlock(tty);
@@ -2087,7 +2091,11 @@ retry_open:
 
 	if (IS_ERR(tty)) {
 		retval = PTR_ERR(tty);
-		goto err_file;
+		if (retval != -EAGAIN || signal_pending(current))
+			goto err_file;
+		tty_free_file(filp);
+		schedule();
+		goto retry_open;
 	}
 
 	tty_add_file(tty, filp);
@@ -2156,6 +2164,7 @@ retry_open:
 	return 0;
 err_unlock:
 	mutex_unlock(&tty_mutex);
+err_unref:
 	/* after locks to avoid deadlock */
 	if (!IS_ERR_OR_NULL(driver))
 		tty_driver_kref_put(driver);
@@ -2653,6 +2662,28 @@ static int tiocsetd(struct tty_struct *t
 }
 
 /**
+ *	tiocgetd	-	get line discipline
+ *	@tty: tty device
+ *	@p: pointer to user data
+ *
+ *	Retrieves the line discipline id directly from the ldisc.
+ *
+ *	Locking: waits for ldisc reference (in case the line discipline
+ *		is changing or the tty is being hungup)
+ */
+
+static int tiocgetd(struct tty_struct *tty, int __user *p)
+{
+	struct tty_ldisc *ld;
+	int ret;
+
+	ld = tty_ldisc_ref_wait(tty);
+	ret = put_user(ld->ops->num, p);
+	tty_ldisc_deref(ld);
+	return ret;
+}
+
+/**
  *	send_break	-	performed time break
  *	@tty: device to break on
  *	@duration: timeout in mS
@@ -2878,7 +2909,7 @@ long tty_ioctl(struct file *file, unsign
 	case TIOCGSID:
 		return tiocgsid(tty, real_tty, p);
 	case TIOCGETD:
-		return put_user(tty->ldisc->ops->num, (int __user *)p);
+		return tiocgetd(tty, p);
 	case TIOCSETD:
 		return tiocsetd(tty, p);
 	case TIOCVHANGUP:
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/tty/tty_ldisc.c linux-libre-4.4.107-gnu/drivers/tty/tty_ldisc.c
--- linux-libre-4.4-gnu/drivers/tty/tty_ldisc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/tty/tty_ldisc.c	2017-12-20 04:05:01.000000000 -0500
@@ -417,6 +417,10 @@ EXPORT_SYMBOL_GPL(tty_ldisc_flush);
  *	they are not on hot paths so a little discipline won't do
  *	any harm.
  *
+ *	The line discipline-related tty_struct fields are reset to
+ *	prevent the ldisc driver from re-using stale information for
+ *	the new ldisc instance.
+ *
  *	Locking: takes termios_rwsem
  */
 
@@ -425,6 +429,9 @@ static void tty_set_termios_ldisc(struct
 	down_write(&tty->termios_rwsem);
 	tty->termios.c_line = num;
 	up_write(&tty->termios_rwsem);
+
+	tty->disc_data = NULL;
+	tty->receive_room = 0;
 }
 
 /**
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/tty/tty_mutex.c linux-libre-4.4.107-gnu/drivers/tty/tty_mutex.c
--- linux-libre-4.4-gnu/drivers/tty/tty_mutex.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/tty/tty_mutex.c	2017-12-20 04:05:01.000000000 -0500
@@ -22,6 +22,19 @@ void __lockfunc tty_lock(struct tty_stru
 }
 EXPORT_SYMBOL(tty_lock);
 
+int tty_lock_interruptible(struct tty_struct *tty)
+{
+	int ret;
+
+	if (WARN(tty->magic != TTY_MAGIC, "L Bad %p\n", tty))
+		return -EIO;
+	tty_kref_get(tty);
+	ret = mutex_lock_interruptible(&tty->legacy_mutex);
+	if (ret)
+		tty_kref_put(tty);
+	return ret;
+}
+
 void __lockfunc tty_unlock(struct tty_struct *tty)
 {
 	if (tty->magic != TTY_MAGIC) {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/tty/vt/keyboard.c linux-libre-4.4.107-gnu/drivers/tty/vt/keyboard.c
--- linux-libre-4.4-gnu/drivers/tty/vt/keyboard.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/tty/vt/keyboard.c	2017-12-20 04:05:01.000000000 -0500
@@ -366,34 +366,22 @@ static void to_utf8(struct vc_data *vc,
 
 static void do_compute_shiftstate(void)
 {
-	unsigned int i, j, k, sym, val;
+	unsigned int k, sym, val;
 
 	shift_state = 0;
 	memset(shift_down, 0, sizeof(shift_down));
 
-	for (i = 0; i < ARRAY_SIZE(key_down); i++) {
-
-		if (!key_down[i])
+	for_each_set_bit(k, key_down, min(NR_KEYS, KEY_CNT)) {
+		sym = U(key_maps[0][k]);
+		if (KTYP(sym) != KT_SHIFT && KTYP(sym) != KT_SLOCK)
 			continue;
 
-		k = i * BITS_PER_LONG;
-
-		for (j = 0; j < BITS_PER_LONG; j++, k++) {
-
-			if (!test_bit(k, key_down))
-				continue;
-
-			sym = U(key_maps[0][k]);
-			if (KTYP(sym) != KT_SHIFT && KTYP(sym) != KT_SLOCK)
-				continue;
-
-			val = KVAL(sym);
-			if (val == KVAL(K_CAPSSHIFT))
-				val = KVAL(K_SHIFT);
+		val = KVAL(sym);
+		if (val == KVAL(K_CAPSSHIFT))
+			val = KVAL(K_SHIFT);
 
-			shift_down[val]++;
-			shift_state |= (1 << val);
-		}
+		shift_down[val]++;
+		shift_state |= BIT(val);
 	}
 }
 
@@ -994,7 +982,7 @@ static void kbd_led_trigger_activate(str
 	KBD_LED_TRIGGER((_led_bit) + 8, _name)
 
 static struct kbd_led_trigger kbd_led_triggers[] = {
-	KBD_LED_TRIGGER(VC_SCROLLOCK, "kbd-scrollock"),
+	KBD_LED_TRIGGER(VC_SCROLLOCK, "kbd-scrolllock"),
 	KBD_LED_TRIGGER(VC_NUMLOCK,   "kbd-numlock"),
 	KBD_LED_TRIGGER(VC_CAPSLOCK,  "kbd-capslock"),
 	KBD_LED_TRIGGER(VC_KANALOCK,  "kbd-kanalock"),
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/tty/vt/vt.c linux-libre-4.4.107-gnu/drivers/tty/vt/vt.c
--- linux-libre-4.4-gnu/drivers/tty/vt/vt.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/tty/vt/vt.c	2017-12-20 04:05:01.000000000 -0500
@@ -750,6 +750,7 @@ static void visual_init(struct vc_data *
 	vc->vc_complement_mask = 0;
 	vc->vc_can_do_color = 0;
 	vc->vc_panic_force_write = false;
+	vc->vc_cur_blink_ms = DEFAULT_CURSOR_BLINK_MS;
 	vc->vc_sw->con_init(vc, init);
 	if (!vc->vc_complement_mask)
 		vc->vc_complement_mask = vc->vc_can_do_color ? 0x7700 : 0x0800;
@@ -871,10 +872,15 @@ static int vc_do_resize(struct tty_struc
 	if (new_cols == vc->vc_cols && new_rows == vc->vc_rows)
 		return 0;
 
+	if (new_screen_size > (4 << 20))
+		return -EINVAL;
 	newscreen = kmalloc(new_screen_size, GFP_USER);
 	if (!newscreen)
 		return -ENOMEM;
 
+	if (vc == sel_cons)
+		clear_selection();
+
 	old_rows = vc->vc_rows;
 	old_row_size = vc->vc_size_row;
 
@@ -1172,7 +1178,7 @@ static void csi_J(struct vc_data *vc, in
 			break;
 		case 3: /* erase scroll-back buffer (and whole display) */
 			scr_memsetw(vc->vc_screenbuf, vc->vc_video_erase_char,
-				    vc->vc_screenbuf_size >> 1);
+				    vc->vc_screenbuf_size);
 			set_origin(vc);
 			if (CON_IS_VISIBLE(vc))
 				update_screen(vc);
@@ -2702,13 +2708,13 @@ int tioclinux(struct tty_struct *tty, un
 	 * related to the kernel should not use this.
 	 */
 			data = vt_get_shift_state();
-			ret = __put_user(data, p);
+			ret = put_user(data, p);
 			break;
 		case TIOCL_GETMOUSEREPORTING:
 			console_lock();	/* May be overkill */
 			data = mouse_reporting();
 			console_unlock();
-			ret = __put_user(data, p);
+			ret = put_user(data, p);
 			break;
 		case TIOCL_SETVESABLANK:
 			console_lock();
@@ -2717,7 +2723,7 @@ int tioclinux(struct tty_struct *tty, un
 			break;
 		case TIOCL_GETKMSGREDIRECT:
 			data = vt_get_kmsg_redirect();
-			ret = __put_user(data, p);
+			ret = put_user(data, p);
 			break;
 		case TIOCL_SETKMSGREDIRECT:
 			if (!capable(CAP_SYS_ADMIN)) {
@@ -3583,9 +3589,10 @@ static int do_register_con_driver(const
 		goto err;
 
 	desc = csw->con_startup();
-
-	if (!desc)
+	if (!desc) {
+		retval = -ENODEV;
 		goto err;
+	}
 
 	retval = -EINVAL;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/uio/uio_dmem_genirq.c linux-libre-4.4.107-gnu/drivers/uio/uio_dmem_genirq.c
--- linux-libre-4.4-gnu/drivers/uio/uio_dmem_genirq.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/uio/uio_dmem_genirq.c	2017-12-20 04:05:01.000000000 -0500
@@ -229,7 +229,7 @@ static int uio_dmem_genirq_probe(struct
 		++uiomem;
 	}
 
-	priv->dmem_region_start = i;
+	priv->dmem_region_start = uiomem - &uioinfo->mem[0];
 	priv->num_dmem_regions = pdata->num_dynamic_regions;
 
 	for (i = 0; i < pdata->num_dynamic_regions; ++i) {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/chipidea/ci.h linux-libre-4.4.107-gnu/drivers/usb/chipidea/ci.h
--- linux-libre-4.4-gnu/drivers/usb/chipidea/ci.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/chipidea/ci.h	2017-12-20 04:05:01.000000000 -0500
@@ -428,9 +428,6 @@ int hw_port_test_set(struct ci_hdrc *ci,
 
 u8 hw_port_test_get(struct ci_hdrc *ci);
 
-int hw_wait_reg(struct ci_hdrc *ci, enum ci_hw_regs reg, u32 mask,
-				u32 value, unsigned int timeout_ms);
-
 void ci_platform_configure(struct ci_hdrc *ci);
 
 #endif	/* __DRIVERS_USB_CHIPIDEA_CI_H */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/chipidea/ci_hdrc_imx.c linux-libre-4.4.107-gnu/drivers/usb/chipidea/ci_hdrc_imx.c
--- linux-libre-4.4-gnu/drivers/usb/chipidea/ci_hdrc_imx.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/chipidea/ci_hdrc_imx.c	2017-12-20 04:05:01.000000000 -0500
@@ -244,7 +244,6 @@ static int ci_hdrc_imx_probe(struct plat
 	struct ci_hdrc_platform_data pdata = {
 		.name		= dev_name(&pdev->dev),
 		.capoffset	= DEF_CAPOFFSET,
-		.flags		= CI_HDRC_SET_NON_ZERO_TTHA,
 	};
 	int ret;
 	const struct of_device_id *of_id;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/chipidea/core.c linux-libre-4.4.107-gnu/drivers/usb/chipidea/core.c
--- linux-libre-4.4-gnu/drivers/usb/chipidea/core.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/chipidea/core.c	2017-12-20 04:05:01.000000000 -0500
@@ -518,38 +518,6 @@ int hw_device_reset(struct ci_hdrc *ci)
 	return 0;
 }
 
-/**
- * hw_wait_reg: wait the register value
- *
- * Sometimes, it needs to wait register value before going on.
- * Eg, when switch to device mode, the vbus value should be lower
- * than OTGSC_BSV before connects to host.
- *
- * @ci: the controller
- * @reg: register index
- * @mask: mast bit
- * @value: the bit value to wait
- * @timeout_ms: timeout in millisecond
- *
- * This function returns an error code if timeout
- */
-int hw_wait_reg(struct ci_hdrc *ci, enum ci_hw_regs reg, u32 mask,
-				u32 value, unsigned int timeout_ms)
-{
-	unsigned long elapse = jiffies + msecs_to_jiffies(timeout_ms);
-
-	while (hw_read(ci, reg, mask) != value) {
-		if (time_after(jiffies, elapse)) {
-			dev_err(ci->dev, "timeout waiting for %08x in %d\n",
-					mask, reg);
-			return -ETIMEDOUT;
-		}
-		msleep(20);
-	}
-
-	return 0;
-}
-
 static irqreturn_t ci_irq(int irq, void *data)
 {
 	struct ci_hdrc *ci = data;
@@ -926,6 +894,7 @@ static int ci_hdrc_probe(struct platform
 	if (!ci)
 		return -ENOMEM;
 
+	spin_lock_init(&ci->lock);
 	ci->dev = dev;
 	ci->platdata = dev_get_platdata(dev);
 	ci->imx28_write_fix = !!(ci->platdata->flags &
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/chipidea/debug.c linux-libre-4.4.107-gnu/drivers/usb/chipidea/debug.c
--- linux-libre-4.4-gnu/drivers/usb/chipidea/debug.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/chipidea/debug.c	2017-12-20 04:05:01.000000000 -0500
@@ -295,7 +295,8 @@ static int ci_role_show(struct seq_file
 {
 	struct ci_hdrc *ci = s->private;
 
-	seq_printf(s, "%s\n", ci_role(ci)->name);
+	if (ci->role != CI_ROLE_END)
+		seq_printf(s, "%s\n", ci_role(ci)->name);
 
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/chipidea/otg.c linux-libre-4.4.107-gnu/drivers/usb/chipidea/otg.c
--- linux-libre-4.4-gnu/drivers/usb/chipidea/otg.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/chipidea/otg.c	2017-12-20 04:05:01.000000000 -0500
@@ -44,12 +44,15 @@ u32 hw_read_otgsc(struct ci_hdrc *ci, u3
 		else
 			val &= ~OTGSC_BSVIS;
 
-		cable->changed = false;
-
 		if (cable->state)
 			val |= OTGSC_BSV;
 		else
 			val &= ~OTGSC_BSV;
+
+		if (cable->enabled)
+			val |= OTGSC_BSVIE;
+		else
+			val &= ~OTGSC_BSVIE;
 	}
 
 	cable = &ci->platdata->id_extcon;
@@ -59,15 +62,18 @@ u32 hw_read_otgsc(struct ci_hdrc *ci, u3
 		else
 			val &= ~OTGSC_IDIS;
 
-		cable->changed = false;
-
 		if (cable->state)
 			val |= OTGSC_ID;
 		else
 			val &= ~OTGSC_ID;
+
+		if (cable->enabled)
+			val |= OTGSC_IDIE;
+		else
+			val &= ~OTGSC_IDIE;
 	}
 
-	return val;
+	return val & mask;
 }
 
 /**
@@ -77,6 +83,36 @@ u32 hw_read_otgsc(struct ci_hdrc *ci, u3
  */
 void hw_write_otgsc(struct ci_hdrc *ci, u32 mask, u32 data)
 {
+	struct ci_hdrc_cable *cable;
+
+	cable = &ci->platdata->vbus_extcon;
+	if (!IS_ERR(cable->edev)) {
+		if (data & mask & OTGSC_BSVIS)
+			cable->changed = false;
+
+		/* Don't enable vbus interrupt if using external notifier */
+		if (data & mask & OTGSC_BSVIE) {
+			cable->enabled = true;
+			data &= ~OTGSC_BSVIE;
+		} else if (mask & OTGSC_BSVIE) {
+			cable->enabled = false;
+		}
+	}
+
+	cable = &ci->platdata->id_extcon;
+	if (!IS_ERR(cable->edev)) {
+		if (data & mask & OTGSC_IDIS)
+			cable->changed = false;
+
+		/* Don't enable id interrupt if using external notifier */
+		if (data & mask & OTGSC_IDIE) {
+			cable->enabled = true;
+			data &= ~OTGSC_IDIE;
+		} else if (mask & OTGSC_IDIE) {
+			cable->enabled = false;
+		}
+	}
+
 	hw_write(ci, OP_OTGSC, mask | OTGSC_INT_STATUS_BITS, data);
 }
 
@@ -98,13 +134,37 @@ void ci_handle_vbus_change(struct ci_hdr
 	if (!ci->is_otg)
 		return;
 
-	if (hw_read_otgsc(ci, OTGSC_BSV))
+	if (hw_read_otgsc(ci, OTGSC_BSV) && !ci->vbus_active)
 		usb_gadget_vbus_connect(&ci->gadget);
-	else
+	else if (!hw_read_otgsc(ci, OTGSC_BSV) && ci->vbus_active)
 		usb_gadget_vbus_disconnect(&ci->gadget);
 }
 
-#define CI_VBUS_STABLE_TIMEOUT_MS 5000
+/**
+ * When we switch to device mode, the vbus value should be lower
+ * than OTGSC_BSV before connecting to host.
+ *
+ * @ci: the controller
+ *
+ * This function returns an error code if timeout
+ */
+static int hw_wait_vbus_lower_bsv(struct ci_hdrc *ci)
+{
+	unsigned long elapse = jiffies + msecs_to_jiffies(5000);
+	u32 mask = OTGSC_BSV;
+
+	while (hw_read_otgsc(ci, mask)) {
+		if (time_after(jiffies, elapse)) {
+			dev_err(ci->dev, "timeout waiting for %08x in OTGSC\n",
+					mask);
+			return -ETIMEDOUT;
+		}
+		msleep(20);
+	}
+
+	return 0;
+}
+
 static void ci_handle_id_switch(struct ci_hdrc *ci)
 {
 	enum ci_role role = ci_otg_role(ci);
@@ -115,12 +175,21 @@ static void ci_handle_id_switch(struct c
 
 		ci_role_stop(ci);
 
-		if (role == CI_ROLE_GADGET)
-			/* wait vbus lower than OTGSC_BSV */
-			hw_wait_reg(ci, OP_OTGSC, OTGSC_BSV, 0,
-					CI_VBUS_STABLE_TIMEOUT_MS);
+		if (role == CI_ROLE_GADGET &&
+				IS_ERR(ci->platdata->vbus_extcon.edev))
+			/*
+			 * Wait vbus lower than OTGSC_BSV before connecting
+			 * to host. If connecting status is from an external
+			 * connector instead of register, we don't need to
+			 * care vbus on the board, since it will not affect
+			 * external connector status.
+			 */
+			hw_wait_vbus_lower_bsv(ci);
 
 		ci_role_start(ci, role);
+		/* vbus change may have already occurred */
+		if (role == CI_ROLE_GADGET)
+			ci_handle_vbus_change(ci);
 	}
 }
 /**
@@ -158,7 +227,7 @@ static void ci_otg_work(struct work_stru
 int ci_hdrc_otg_init(struct ci_hdrc *ci)
 {
 	INIT_WORK(&ci->work, ci_otg_work);
-	ci->wq = create_singlethread_workqueue("ci_otg");
+	ci->wq = create_freezable_workqueue("ci_otg");
 	if (!ci->wq) {
 		dev_err(ci->dev, "can't create workqueue\n");
 		return -ENODEV;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/chipidea/udc.c linux-libre-4.4.107-gnu/drivers/usb/chipidea/udc.c
--- linux-libre-4.4-gnu/drivers/usb/chipidea/udc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/chipidea/udc.c	2017-12-20 04:05:01.000000000 -0500
@@ -939,6 +939,15 @@ static int isr_setup_status_phase(struct
 	int retval;
 	struct ci_hw_ep *hwep;
 
+	/*
+	 * Unexpected USB controller behavior, caused by bad signal integrity
+	 * or ground reference problems, can lead to isr_setup_status_phase
+	 * being called with ci->status equal to NULL.
+	 * If this situation occurs, you should review your USB hardware design.
+	 */
+	if (WARN_ON_ONCE(!ci->status))
+		return -EPIPE;
+
 	hwep = (ci->ep0_dir == TX) ? ci->ep0out : ci->ep0in;
 	ci->status->context = ci;
 	ci->status->complete = isr_setup_status_complete;
@@ -1585,8 +1594,11 @@ static int ci_udc_pullup(struct usb_gadg
 {
 	struct ci_hdrc *ci = container_of(_gadget, struct ci_hdrc, gadget);
 
-	/* Data+ pullup controlled by OTG state machine in OTG fsm mode */
-	if (ci_otg_is_fsm_mode(ci))
+	/*
+	 * Data+ pullup controlled by OTG state machine in OTG fsm mode;
+	 * and don't touch Data+ in host mode for dual role config.
+	 */
+	if (ci_otg_is_fsm_mode(ci) || ci->role == CI_ROLE_HOST)
 		return 0;
 
 	pm_runtime_get_sync(&ci->gadget.dev);
@@ -1872,8 +1884,6 @@ static int udc_start(struct ci_hdrc *ci)
 	struct usb_otg_caps *otg_caps = &ci->platdata->ci_otg_caps;
 	int retval = 0;
 
-	spin_lock_init(&ci->lock);
-
 	ci->gadget.ops          = &usb_gadget_ops;
 	ci->gadget.speed        = USB_SPEED_UNKNOWN;
 	ci->gadget.max_speed    = USB_SPEED_HIGH;
@@ -1972,6 +1982,7 @@ static void udc_id_switch_for_host(struc
 int ci_hdrc_gadget_init(struct ci_hdrc *ci)
 {
 	struct ci_role_driver *rdrv;
+	int ret;
 
 	if (!hw_read(ci, CAP_DCCPARAMS, DCCPARAMS_DC))
 		return -ENXIO;
@@ -1984,7 +1995,10 @@ int ci_hdrc_gadget_init(struct ci_hdrc *
 	rdrv->stop	= udc_id_switch_for_host;
 	rdrv->irq	= udc_irq;
 	rdrv->name	= "gadget";
-	ci->roles[CI_ROLE_GADGET] = rdrv;
 
-	return udc_start(ci);
+	ret = udc_start(ci);
+	if (!ret)
+		ci->roles[CI_ROLE_GADGET] = rdrv;
+
+	return ret;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/class/cdc-acm.c linux-libre-4.4.107-gnu/drivers/usb/class/cdc-acm.c
--- linux-libre-4.4-gnu/drivers/usb/class/cdc-acm.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/class/cdc-acm.c	2017-12-20 04:05:01.000000000 -0500
@@ -311,6 +311,12 @@ static void acm_ctrl_irq(struct urb *urb
 		break;
 
 	case USB_CDC_NOTIFY_SERIAL_STATE:
+		if (le16_to_cpu(dr->wLength) != 2) {
+			dev_dbg(&acm->control->dev,
+				"%s - malformed serial state\n", __func__);
+			break;
+		}
+
 		newctrl = get_unaligned_le16(data);
 
 		if (!acm->clocal && (acm->ctrlin & ~newctrl & ACM_CTRL_DCD)) {
@@ -347,11 +353,10 @@ static void acm_ctrl_irq(struct urb *urb
 
 	default:
 		dev_dbg(&acm->control->dev,
-			"%s - unknown notification %d received: index %d "
-			"len %d data0 %d data1 %d\n",
+			"%s - unknown notification %d received: index %d len %d\n",
 			__func__,
-			dr->bNotificationType, dr->wIndex,
-			dr->wLength, data[0], data[1]);
+			dr->bNotificationType, dr->wIndex, dr->wLength);
+
 		break;
 	}
 exit:
@@ -428,7 +433,8 @@ static void acm_read_bulk_callback(struc
 		set_bit(rb->index, &acm->read_urbs_free);
 		dev_dbg(&acm->data->dev, "%s - non-zero urb status: %d\n",
 							__func__, status);
-		return;
+		if ((status != -ENOENT) || (urb->actual_length == 0))
+			return;
 	}
 
 	usb_mark_last_busy(acm->dev);
@@ -876,8 +882,6 @@ static int wait_serial_change(struct acm
 	DECLARE_WAITQUEUE(wait, current);
 	struct async_icount old, new;
 
-	if (arg & (TIOCM_DSR | TIOCM_RI | TIOCM_CD ))
-		return -EINVAL;
 	do {
 		spin_lock_irq(&acm->read_lock);
 		old = acm->oldcount;
@@ -1113,6 +1117,9 @@ static int acm_probe(struct usb_interfac
 	if (quirks == NO_UNION_NORMAL) {
 		data_interface = usb_ifnum_to_if(usb_dev, 1);
 		control_interface = usb_ifnum_to_if(usb_dev, 0);
+		/* we would crash */
+		if (!data_interface || !control_interface)
+			return -ENODEV;
 		goto skip_normal_probe;
 	}
 
@@ -1332,7 +1339,6 @@ made_compressed_probe:
 	spin_lock_init(&acm->write_lock);
 	spin_lock_init(&acm->read_lock);
 	mutex_init(&acm->mutex);
-	acm->rx_endpoint = usb_rcvbulkpipe(usb_dev, epread->bEndpointAddress);
 	acm->is_int_ep = usb_endpoint_xfer_int(epread);
 	if (acm->is_int_ep)
 		acm->bInterval = epread->bInterval;
@@ -1372,14 +1378,14 @@ made_compressed_probe:
 		urb->transfer_dma = rb->dma;
 		if (acm->is_int_ep) {
 			usb_fill_int_urb(urb, acm->dev,
-					 acm->rx_endpoint,
+					 usb_rcvintpipe(usb_dev, epread->bEndpointAddress),
 					 rb->base,
 					 acm->readsize,
 					 acm_read_bulk_callback, rb,
 					 acm->bInterval);
 		} else {
 			usb_fill_bulk_urb(urb, acm->dev,
-					  acm->rx_endpoint,
+					  usb_rcvbulkpipe(usb_dev, epread->bEndpointAddress),
 					  rb->base,
 					  acm->readsize,
 					  acm_read_bulk_callback, rb);
@@ -1404,6 +1410,8 @@ made_compressed_probe:
 				usb_sndbulkpipe(usb_dev, epwrite->bEndpointAddress),
 				NULL, acm->writesize, acm_write_bulk, snd);
 		snd->urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+		if (quirks & SEND_ZERO_PACKET)
+			snd->urb->transfer_flags |= URB_ZERO_PACKET;
 		snd->instance = acm;
 	}
 
@@ -1705,6 +1713,7 @@ static const struct usb_device_id acm_id
 	{ USB_DEVICE(0x20df, 0x0001), /* Simtec Electronics Entropy Key */
 	.driver_info = QUIRK_CONTROL_LINE_STATE, },
 	{ USB_DEVICE(0x2184, 0x001c) },	/* GW Instek AFG-2225 */
+	{ USB_DEVICE(0x2184, 0x0036) },	/* GW Instek AFG-125 */
 	{ USB_DEVICE(0x22b8, 0x6425), /* Motorola MOTOMAGX phones */
 	},
 	/* Motorola H24 HSPA module: */
@@ -1750,6 +1759,12 @@ static const struct usb_device_id acm_id
 	{ USB_DEVICE(0x1576, 0x03b1), /* Maretron USB100 */
 	.driver_info = NO_UNION_NORMAL, /* reports zero length descriptor */
 	},
+	{ USB_DEVICE(0xfff0, 0x0100), /* DATECS FP-2000 */
+	.driver_info = NO_UNION_NORMAL, /* reports zero length descriptor */
+	},
+	{ USB_DEVICE(0x09d8, 0x0320), /* Elatec GmbH TWN3 */
+	.driver_info = NO_UNION_NORMAL, /* has misplaced union descriptor */
+	},
 
 	{ USB_DEVICE(0x2912, 0x0001), /* ATOL FPrint */
 	.driver_info = CLEAR_HALT_CONDITIONS,
@@ -1838,6 +1853,11 @@ static const struct usb_device_id acm_id
 	},
 #endif
 
+	/*Samsung phone in firmware update mode */
+	{ USB_DEVICE(0x04e8, 0x685d),
+	.driver_info = IGNORE_DEVICE,
+	},
+
 	/* Exclude Infineon Flash Loader utility */
 	{ USB_DEVICE(0x058b, 0x0041),
 	.driver_info = IGNORE_DEVICE,
@@ -1861,6 +1881,10 @@ static const struct usb_device_id acm_id
 	{ USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_ACM,
 		USB_CDC_ACM_PROTO_AT_CDMA) },
 
+	{ USB_DEVICE(0x1519, 0x0452), /* Intel 7260 modem */
+	.driver_info = SEND_ZERO_PACKET,
+	},
+
 	{ }
 };
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/class/cdc-acm.h linux-libre-4.4.107-gnu/drivers/usb/class/cdc-acm.h
--- linux-libre-4.4-gnu/drivers/usb/class/cdc-acm.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/class/cdc-acm.h	2017-12-20 04:05:01.000000000 -0500
@@ -95,7 +95,6 @@ struct acm {
 	struct urb *read_urbs[ACM_NR];
 	struct acm_rb read_buffers[ACM_NR];
 	int rx_buflimit;
-	int rx_endpoint;
 	spinlock_t read_lock;
 	int write_used;					/* number of non-empty write buffers */
 	int transmitting;
@@ -134,3 +133,4 @@ struct acm {
 #define IGNORE_DEVICE			BIT(5)
 #define QUIRK_CONTROL_LINE_STATE	BIT(6)
 #define CLEAR_HALT_CONDITIONS		BIT(7)
+#define SEND_ZERO_PACKET		BIT(8)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/class/usbtmc.c linux-libre-4.4.107-gnu/drivers/usb/class/usbtmc.c
--- linux-libre-4.4-gnu/drivers/usb/class/usbtmc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/class/usbtmc.c	2017-12-20 04:05:01.000000000 -0500
@@ -121,6 +121,7 @@ static void usbtmc_delete(struct kref *k
 	struct usbtmc_device_data *data = to_usbtmc_data(kref);
 
 	usb_put_dev(data->usb_dev);
+	kfree(data);
 }
 
 static int usbtmc_open(struct inode *inode, struct file *filp)
@@ -1104,7 +1105,7 @@ static int usbtmc_probe(struct usb_inter
 
 	dev_dbg(&intf->dev, "%s called\n", __func__);
 
-	data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
+	data = kzalloc(sizeof(*data), GFP_KERNEL);
 	if (!data)
 		return -ENOMEM;
 
@@ -1162,6 +1163,12 @@ static int usbtmc_probe(struct usb_inter
 		}
 	}
 
+	if (!data->bulk_out || !data->bulk_in) {
+		dev_err(&intf->dev, "bulk endpoints not found\n");
+		retcode = -ENODEV;
+		goto err_put;
+	}
+
 	retcode = get_capabilities(data);
 	if (retcode)
 		dev_err(&intf->dev, "can't read capabilities\n");
@@ -1185,6 +1192,7 @@ static int usbtmc_probe(struct usb_inter
 error_register:
 	sysfs_remove_group(&intf->dev.kobj, &capability_attr_grp);
 	sysfs_remove_group(&intf->dev.kobj, &data_attr_grp);
+err_put:
 	kref_put(&data->kref, usbtmc_delete);
 	return retcode;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/common/common.c linux-libre-4.4.107-gnu/drivers/usb/common/common.c
--- linux-libre-4.4-gnu/drivers/usb/common/common.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/common/common.c	2017-12-20 04:05:01.000000000 -0500
@@ -50,6 +50,7 @@ static const char *const speed_names[] =
 	[USB_SPEED_HIGH] = "high-speed",
 	[USB_SPEED_WIRELESS] = "wireless",
 	[USB_SPEED_SUPER] = "super-speed",
+	[USB_SPEED_SUPER_PLUS] = "super-speed-plus",
 };
 
 const char *usb_speed_string(enum usb_device_speed speed)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/common/usb-otg-fsm.c linux-libre-4.4.107-gnu/drivers/usb/common/usb-otg-fsm.c
--- linux-libre-4.4-gnu/drivers/usb/common/usb-otg-fsm.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/common/usb-otg-fsm.c	2017-12-20 04:05:01.000000000 -0500
@@ -21,6 +21,7 @@
  * 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
+#include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/types.h>
 #include <linux/mutex.h>
@@ -365,3 +366,4 @@ int otg_statemachine(struct otg_fsm *fsm
 	return state_changed;
 }
 EXPORT_SYMBOL_GPL(otg_statemachine);
+MODULE_LICENSE("GPL");
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/core/config.c linux-libre-4.4.107-gnu/drivers/usb/core/config.c
--- linux-libre-4.4-gnu/drivers/usb/core/config.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/core/config.c	2017-12-20 04:05:01.000000000 -0500
@@ -142,6 +142,31 @@ static void usb_parse_ss_endpoint_compan
 	}
 }
 
+static const unsigned short low_speed_maxpacket_maxes[4] = {
+	[USB_ENDPOINT_XFER_CONTROL] = 8,
+	[USB_ENDPOINT_XFER_ISOC] = 0,
+	[USB_ENDPOINT_XFER_BULK] = 0,
+	[USB_ENDPOINT_XFER_INT] = 8,
+};
+static const unsigned short full_speed_maxpacket_maxes[4] = {
+	[USB_ENDPOINT_XFER_CONTROL] = 64,
+	[USB_ENDPOINT_XFER_ISOC] = 1023,
+	[USB_ENDPOINT_XFER_BULK] = 64,
+	[USB_ENDPOINT_XFER_INT] = 64,
+};
+static const unsigned short high_speed_maxpacket_maxes[4] = {
+	[USB_ENDPOINT_XFER_CONTROL] = 64,
+	[USB_ENDPOINT_XFER_ISOC] = 1024,
+	[USB_ENDPOINT_XFER_BULK] = 512,
+	[USB_ENDPOINT_XFER_INT] = 1024,
+};
+static const unsigned short super_speed_maxpacket_maxes[4] = {
+	[USB_ENDPOINT_XFER_CONTROL] = 512,
+	[USB_ENDPOINT_XFER_ISOC] = 1024,
+	[USB_ENDPOINT_XFER_BULK] = 1024,
+	[USB_ENDPOINT_XFER_INT] = 1024,
+};
+
 static int usb_parse_endpoint(struct device *ddev, int cfgno, int inum,
     int asnum, struct usb_host_interface *ifp, int num_ep,
     unsigned char *buffer, int size)
@@ -150,6 +175,8 @@ static int usb_parse_endpoint(struct dev
 	struct usb_endpoint_descriptor *d;
 	struct usb_host_endpoint *endpoint;
 	int n, i, j, retval;
+	unsigned int maxp;
+	const unsigned short *maxpacket_maxes;
 
 	d = (struct usb_endpoint_descriptor *) buffer;
 	buffer += d->bLength;
@@ -178,32 +205,57 @@ static int usb_parse_endpoint(struct dev
 	if (ifp->desc.bNumEndpoints >= num_ep)
 		goto skip_to_next_endpoint_or_interface_descriptor;
 
+	/* Check for duplicate endpoint addresses */
+	for (i = 0; i < ifp->desc.bNumEndpoints; ++i) {
+		if (ifp->endpoint[i].desc.bEndpointAddress ==
+		    d->bEndpointAddress) {
+			dev_warn(ddev, "config %d interface %d altsetting %d has a duplicate endpoint with address 0x%X, skipping\n",
+			    cfgno, inum, asnum, d->bEndpointAddress);
+			goto skip_to_next_endpoint_or_interface_descriptor;
+		}
+	}
+
 	endpoint = &ifp->endpoint[ifp->desc.bNumEndpoints];
 	++ifp->desc.bNumEndpoints;
 
 	memcpy(&endpoint->desc, d, n);
 	INIT_LIST_HEAD(&endpoint->urb_list);
 
-	/* Fix up bInterval values outside the legal range. Use 32 ms if no
-	 * proper value can be guessed. */
+	/*
+	 * Fix up bInterval values outside the legal range.
+	 * Use 10 or 8 ms if no proper value can be guessed.
+	 */
 	i = 0;		/* i = min, j = max, n = default */
 	j = 255;
 	if (usb_endpoint_xfer_int(d)) {
 		i = 1;
 		switch (to_usb_device(ddev)->speed) {
+		case USB_SPEED_SUPER_PLUS:
 		case USB_SPEED_SUPER:
 		case USB_SPEED_HIGH:
-			/* Many device manufacturers are using full-speed
+			/*
+			 * Many device manufacturers are using full-speed
 			 * bInterval values in high-speed interrupt endpoint
-			 * descriptors. Try to fix those and fall back to a
-			 * 32 ms default value otherwise. */
+			 * descriptors. Try to fix those and fall back to an
+			 * 8-ms default value otherwise.
+			 */
 			n = fls(d->bInterval*8);
 			if (n == 0)
-				n = 9;	/* 32 ms = 2^(9-1) uframes */
+				n = 7;	/* 8 ms = 2^(7-1) uframes */
 			j = 16;
 
 			/*
 			 * Adjust bInterval for quirked devices.
+			 */
+			/*
+			 * This quirk fixes bIntervals reported in ms.
+			 */
+			if (to_usb_device(ddev)->quirks &
+				USB_QUIRK_LINEAR_FRAME_INTR_BINTERVAL) {
+				n = clamp(fls(d->bInterval) + 3, i, j);
+				i = j = n;
+			}
+			/*
 			 * This quirk fixes bIntervals reported in
 			 * linear microframes.
 			 */
@@ -214,10 +266,12 @@ static int usb_parse_endpoint(struct dev
 			}
 			break;
 		default:		/* USB_SPEED_FULL or _LOW */
-			/* For low-speed, 10 ms is the official minimum.
+			/*
+			 * For low-speed, 10 ms is the official minimum.
 			 * But some "overclocked" devices might want faster
-			 * polling so we'll allow it. */
-			n = 32;
+			 * polling so we'll allow it.
+			 */
+			n = 10;
 			break;
 		}
 	} else if (usb_endpoint_xfer_isoc(d)) {
@@ -225,10 +279,10 @@ static int usb_parse_endpoint(struct dev
 		j = 16;
 		switch (to_usb_device(ddev)->speed) {
 		case USB_SPEED_HIGH:
-			n = 9;		/* 32 ms = 2^(9-1) uframes */
+			n = 7;		/* 8 ms = 2^(7-1) uframes */
 			break;
 		default:		/* USB_SPEED_FULL */
-			n = 6;		/* 32 ms = 2^(6-1) frames */
+			n = 4;		/* 8 ms = 2^(4-1) frames */
 			break;
 		}
 	}
@@ -256,6 +310,42 @@ static int usb_parse_endpoint(struct dev
 			endpoint->desc.wMaxPacketSize = cpu_to_le16(8);
 	}
 
+	/* Validate the wMaxPacketSize field */
+	maxp = usb_endpoint_maxp(&endpoint->desc);
+
+	/* Find the highest legal maxpacket size for this endpoint */
+	i = 0;		/* additional transactions per microframe */
+	switch (to_usb_device(ddev)->speed) {
+	case USB_SPEED_LOW:
+		maxpacket_maxes = low_speed_maxpacket_maxes;
+		break;
+	case USB_SPEED_FULL:
+		maxpacket_maxes = full_speed_maxpacket_maxes;
+		break;
+	case USB_SPEED_HIGH:
+		/* Bits 12..11 are allowed only for HS periodic endpoints */
+		if (usb_endpoint_xfer_int(d) || usb_endpoint_xfer_isoc(d)) {
+			i = maxp & (BIT(12) | BIT(11));
+			maxp &= ~i;
+		}
+		/* fallthrough */
+	default:
+		maxpacket_maxes = high_speed_maxpacket_maxes;
+		break;
+	case USB_SPEED_SUPER:
+	case USB_SPEED_SUPER_PLUS:
+		maxpacket_maxes = super_speed_maxpacket_maxes;
+		break;
+	}
+	j = maxpacket_maxes[usb_endpoint_type(&endpoint->desc)];
+
+	if (maxp > j) {
+		dev_warn(ddev, "config %d interface %d altsetting %d endpoint 0x%X has invalid maxpacket %d, setting to %d\n",
+		    cfgno, inum, asnum, d->bEndpointAddress, maxp, j);
+		maxp = j;
+		endpoint->desc.wMaxPacketSize = cpu_to_le16(i | maxp);
+	}
+
 	/*
 	 * Some buggy high speed devices have bulk endpoints using
 	 * maxpacket sizes other than 512.  High speed HCDs may not
@@ -263,9 +353,6 @@ static int usb_parse_endpoint(struct dev
 	 */
 	if (to_usb_device(ddev)->speed == USB_SPEED_HIGH
 			&& usb_endpoint_xfer_bulk(d)) {
-		unsigned maxp;
-
-		maxp = usb_endpoint_maxp(&endpoint->desc) & 0x07ff;
 		if (maxp != 512)
 			dev_warn(ddev, "config %d interface %d altsetting %d "
 				"bulk endpoint 0x%X has invalid maxpacket %d\n",
@@ -274,7 +361,7 @@ static int usb_parse_endpoint(struct dev
 	}
 
 	/* Parse a possible SuperSpeed endpoint companion descriptor */
-	if (to_usb_device(ddev)->speed == USB_SPEED_SUPER)
+	if (to_usb_device(ddev)->speed >= USB_SPEED_SUPER)
 		usb_parse_ss_endpoint_companion(ddev, cfgno,
 				inum, asnum, endpoint, buffer, size);
 
@@ -434,6 +521,9 @@ static int usb_parse_configuration(struc
 	unsigned iad_num = 0;
 
 	memcpy(&config->desc, buffer, USB_DT_CONFIG_SIZE);
+	nintf = nintf_orig = config->desc.bNumInterfaces;
+	config->desc.bNumInterfaces = 0;	// Adjusted later
+
 	if (config->desc.bDescriptorType != USB_DT_CONFIG ||
 	    config->desc.bLength < USB_DT_CONFIG_SIZE ||
 	    config->desc.bLength > size) {
@@ -447,7 +537,6 @@ static int usb_parse_configuration(struc
 	buffer += config->desc.bLength;
 	size -= config->desc.bLength;
 
-	nintf = nintf_orig = config->desc.bNumInterfaces;
 	if (nintf > USB_MAXINTERFACES) {
 		dev_warn(ddev, "config %d has too many interfaces: %d, "
 		    "using maximum allowed: %d\n",
@@ -522,15 +611,23 @@ static int usb_parse_configuration(struc
 
 		} else if (header->bDescriptorType ==
 				USB_DT_INTERFACE_ASSOCIATION) {
+			struct usb_interface_assoc_descriptor *d;
+
+			d = (struct usb_interface_assoc_descriptor *)header;
+			if (d->bLength < USB_DT_INTERFACE_ASSOCIATION_SIZE) {
+				dev_warn(ddev,
+					 "config %d has an invalid interface association descriptor of length %d, skipping\n",
+					 cfgno, d->bLength);
+				continue;
+			}
+
 			if (iad_num == USB_MAXIADS) {
 				dev_warn(ddev, "found more Interface "
 					       "Association Descriptors "
 					       "than allocated for in "
 					       "configuration %d\n", cfgno);
 			} else {
-				config->intf_assoc[iad_num] =
-					(struct usb_interface_assoc_descriptor
-					*)header;
+				config->intf_assoc[iad_num] = d;
 				iad_num++;
 			}
 
@@ -731,7 +828,7 @@ int usb_get_configuration(struct usb_dev
 		}
 
 		if (dev->quirks & USB_QUIRK_DELAY_INIT)
-			msleep(100);
+			msleep(200);
 
 		result = usb_get_descriptor(dev, USB_DT_CONFIG, cfgno,
 		    bigbuffer, length);
@@ -776,14 +873,25 @@ void usb_release_bos_descriptor(struct u
 	}
 }
 
+static const __u8 bos_desc_len[256] = {
+	[USB_CAP_TYPE_WIRELESS_USB] = USB_DT_USB_WIRELESS_CAP_SIZE,
+	[USB_CAP_TYPE_EXT]          = USB_DT_USB_EXT_CAP_SIZE,
+	[USB_SS_CAP_TYPE]           = USB_DT_USB_SS_CAP_SIZE,
+	[USB_SSP_CAP_TYPE]          = USB_DT_USB_SSP_CAP_SIZE(1),
+	[CONTAINER_ID_TYPE]         = USB_DT_USB_SS_CONTN_ID_SIZE,
+	[USB_PTM_CAP_TYPE]          = USB_DT_USB_PTM_ID_SIZE,
+};
+
 /* Get BOS descriptor set */
 int usb_get_bos_descriptor(struct usb_device *dev)
 {
 	struct device *ddev = &dev->dev;
 	struct usb_bos_descriptor *bos;
 	struct usb_dev_cap_header *cap;
+	struct usb_ssp_cap_descriptor *ssp_cap;
 	unsigned char *buffer;
-	int length, total_len, num, i;
+	int length, total_len, num, i, ssac;
+	__u8 cap_type;
 	int ret;
 
 	bos = kzalloc(sizeof(struct usb_bos_descriptor), GFP_KERNEL);
@@ -831,10 +939,18 @@ int usb_get_bos_descriptor(struct usb_de
 	for (i = 0; i < num; i++) {
 		buffer += length;
 		cap = (struct usb_dev_cap_header *)buffer;
-		length = cap->bLength;
 
-		if (total_len < length)
+		if (total_len < sizeof(*cap) || total_len < cap->bLength) {
+			dev->bos->desc->bNumDeviceCaps = i;
 			break;
+		}
+		cap_type = cap->bDevCapabilityType;
+		length = cap->bLength;
+		if (bos_desc_len[cap_type] && length < bos_desc_len[cap_type]) {
+			dev->bos->desc->bNumDeviceCaps = i;
+			break;
+		}
+
 		total_len -= length;
 
 		if (cap->bDescriptorType != USB_DT_DEVICE_CAPABILITY) {
@@ -842,7 +958,7 @@ int usb_get_bos_descriptor(struct usb_de
 			continue;
 		}
 
-		switch (cap->bDevCapabilityType) {
+		switch (cap_type) {
 		case USB_CAP_TYPE_WIRELESS_USB:
 			/* Wireless USB cap descriptor is handled by wusb */
 			break;
@@ -855,13 +971,19 @@ int usb_get_bos_descriptor(struct usb_de
 				(struct usb_ss_cap_descriptor *)buffer;
 			break;
 		case USB_SSP_CAP_TYPE:
-			dev->bos->ssp_cap =
-				(struct usb_ssp_cap_descriptor *)buffer;
+			ssp_cap = (struct usb_ssp_cap_descriptor *)buffer;
+			ssac = (le32_to_cpu(ssp_cap->bmAttributes) &
+				USB_SSP_SUBLINK_SPEED_ATTRIBS) + 1;
+			if (length >= USB_DT_USB_SSP_CAP_SIZE(ssac))
+				dev->bos->ssp_cap = ssp_cap;
 			break;
 		case CONTAINER_ID_TYPE:
 			dev->bos->ss_id =
 				(struct usb_ss_container_id_descriptor *)buffer;
 			break;
+		case USB_PTM_CAP_TYPE:
+			dev->bos->ptm_cap =
+				(struct usb_ptm_cap_descriptor *)buffer;
 		default:
 			break;
 		}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/core/devices.c linux-libre-4.4.107-gnu/drivers/usb/core/devices.c
--- linux-libre-4.4-gnu/drivers/usb/core/devices.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/core/devices.c	2017-12-20 04:05:01.000000000 -0500
@@ -221,7 +221,7 @@ static char *usb_dump_endpoint_descripto
 		break;
 	case USB_ENDPOINT_XFER_INT:
 		type = "Int.";
-		if (speed == USB_SPEED_HIGH || speed == USB_SPEED_SUPER)
+		if (speed == USB_SPEED_HIGH || speed >= USB_SPEED_SUPER)
 			interval = 1 << (desc->bInterval - 1);
 		else
 			interval = desc->bInterval;
@@ -230,7 +230,7 @@ static char *usb_dump_endpoint_descripto
 		return start;
 	}
 	interval *= (speed == USB_SPEED_HIGH ||
-		     speed == USB_SPEED_SUPER) ? 125 : 1000;
+		     speed >= USB_SPEED_SUPER) ? 125 : 1000;
 	if (interval % 1000)
 		unit = 'u';
 	else {
@@ -322,7 +322,7 @@ static char *usb_dump_config_descriptor(
 
 	if (start > end)
 		return start;
-	if (speed == USB_SPEED_SUPER)
+	if (speed >= USB_SPEED_SUPER)
 		mul = 8;
 	else
 		mul = 2;
@@ -534,6 +534,8 @@ static ssize_t usb_device_dump(char __us
 		speed = "480"; break;
 	case USB_SPEED_SUPER:
 		speed = "5000"; break;
+	case USB_SPEED_SUPER_PLUS:
+		speed = "10000"; break;
 	default:
 		speed = "??";
 	}
@@ -553,7 +555,7 @@ static ssize_t usb_device_dump(char __us
 
 		/* super/high speed reserves 80%, full/low reserves 90% */
 		if (usbdev->speed == USB_SPEED_HIGH ||
-		    usbdev->speed == USB_SPEED_SUPER)
+		    usbdev->speed >= USB_SPEED_SUPER)
 			max = 800;
 		else
 			max = FRAME_TIME_MAX_USECS_ALLOC;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/core/devio.c linux-libre-4.4.107-gnu/drivers/usb/core/devio.c
--- linux-libre-4.4-gnu/drivers/usb/core/devio.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/core/devio.c	2017-12-20 04:05:01.000000000 -0500
@@ -113,42 +113,38 @@ enum snoop_when {
 #define USB_DEVICE_DEV		MKDEV(USB_DEVICE_MAJOR, 0)
 
 /* Limit on the total amount of memory we can allocate for transfers */
-static unsigned usbfs_memory_mb = 16;
+static u32 usbfs_memory_mb = 16;
 module_param(usbfs_memory_mb, uint, 0644);
 MODULE_PARM_DESC(usbfs_memory_mb,
 		"maximum MB allowed for usbfs buffers (0 = no limit)");
 
 /* Hard limit, necessary to avoid arithmetic overflow */
-#define USBFS_XFER_MAX		(UINT_MAX / 2 - 1000000)
+#define USBFS_XFER_MAX         (UINT_MAX / 2 - 1000000)
 
-static atomic_t usbfs_memory_usage;	/* Total memory currently allocated */
+static atomic64_t usbfs_memory_usage;	/* Total memory currently allocated */
 
 /* Check whether it's okay to allocate more memory for a transfer */
-static int usbfs_increase_memory_usage(unsigned amount)
+static int usbfs_increase_memory_usage(u64 amount)
 {
-	unsigned lim;
+	u64 lim;
 
-	/*
-	 * Convert usbfs_memory_mb to bytes, avoiding overflows.
-	 * 0 means use the hard limit (effectively unlimited).
-	 */
 	lim = ACCESS_ONCE(usbfs_memory_mb);
-	if (lim == 0 || lim > (USBFS_XFER_MAX >> 20))
-		lim = USBFS_XFER_MAX;
-	else
-		lim <<= 20;
+	lim <<= 20;
 
-	atomic_add(amount, &usbfs_memory_usage);
-	if (atomic_read(&usbfs_memory_usage) <= lim)
-		return 0;
-	atomic_sub(amount, &usbfs_memory_usage);
-	return -ENOMEM;
+	atomic64_add(amount, &usbfs_memory_usage);
+
+	if (lim > 0 && atomic64_read(&usbfs_memory_usage) > lim) {
+		atomic64_sub(amount, &usbfs_memory_usage);
+		return -ENOMEM;
+	}
+
+	return 0;
 }
 
 /* Memory for a transfer is being deallocated */
-static void usbfs_decrease_memory_usage(unsigned amount)
+static void usbfs_decrease_memory_usage(u64 amount)
 {
-	atomic_sub(amount, &usbfs_memory_usage);
+	atomic64_sub(amount, &usbfs_memory_usage);
 }
 
 static int connected(struct usb_dev_state *ps)
@@ -373,11 +369,11 @@ static void snoop_urb(struct usb_device
 
 	if (userurb) {		/* Async */
 		if (when == SUBMIT)
-			dev_info(&udev->dev, "userurb %p, ep%d %s-%s, "
+			dev_info(&udev->dev, "userurb %pK, ep%d %s-%s, "
 					"length %u\n",
 					userurb, ep, t, d, length);
 		else
-			dev_info(&udev->dev, "userurb %p, ep%d %s-%s, "
+			dev_info(&udev->dev, "userurb %pK, ep%d %s-%s, "
 					"actual_length %u status %d\n",
 					userurb, ep, t, d, length,
 					timeout_or_status);
@@ -519,6 +515,8 @@ static void async_completed(struct urb *
 	if (as->status < 0 && as->bulk_addr && as->status != -ECONNRESET &&
 			as->status != -ENOENT)
 		cancel_bulk_urbs(ps, as->bulk_addr);
+
+	wake_up(&ps->wait);
 	spin_unlock(&ps->lock);
 
 	if (signr) {
@@ -526,8 +524,6 @@ static void async_completed(struct urb *
 		put_pid(pid);
 		put_cred(cred);
 	}
-
-	wake_up(&ps->wait);
 }
 
 static void destroy_async(struct usb_dev_state *ps, struct list_head *list)
@@ -1077,7 +1073,7 @@ static int proc_bulk(struct usb_dev_stat
 	if (!usb_maxpacket(dev, pipe, !(bulk.ep & USB_DIR_IN)))
 		return -EINVAL;
 	len1 = bulk.len;
-	if (len1 >= USBFS_XFER_MAX)
+	if (len1 >= (INT_MAX - sizeof(struct urb)))
 		return -EINVAL;
 	ret = usbfs_increase_memory_usage(len1 + sizeof(struct urb));
 	if (ret)
@@ -1203,10 +1199,11 @@ static int proc_getdriver(struct usb_dev
 
 static int proc_connectinfo(struct usb_dev_state *ps, void __user *arg)
 {
-	struct usbdevfs_connectinfo ci = {
-		.devnum = ps->dev->devnum,
-		.slow = ps->dev->speed == USB_SPEED_LOW
-	};
+	struct usbdevfs_connectinfo ci;
+
+	memset(&ci, 0, sizeof(ci));
+	ci.devnum = ps->dev->devnum;
+	ci.slow = ps->dev->speed == USB_SPEED_LOW;
 
 	if (copy_to_user(arg, &ci, sizeof(ci)))
 		return -EFAULT;
@@ -1296,13 +1293,19 @@ static int proc_do_submiturb(struct usb_
 	int number_of_packets = 0;
 	unsigned int stream_id = 0;
 	void *buf;
-
-	if (uurb->flags & ~(USBDEVFS_URB_ISO_ASAP |
-				USBDEVFS_URB_SHORT_NOT_OK |
+	unsigned long mask =	USBDEVFS_URB_SHORT_NOT_OK |
 				USBDEVFS_URB_BULK_CONTINUATION |
 				USBDEVFS_URB_NO_FSBR |
 				USBDEVFS_URB_ZERO_PACKET |
-				USBDEVFS_URB_NO_INTERRUPT))
+				USBDEVFS_URB_NO_INTERRUPT;
+	/* USBDEVFS_URB_ISO_ASAP is a special case */
+	if (uurb->type == USBDEVFS_URB_TYPE_ISO)
+		mask |= USBDEVFS_URB_ISO_ASAP;
+
+	if (uurb->flags & ~mask)
+			return -EINVAL;
+
+	if ((unsigned int)uurb->buffer_length >= USBFS_XFER_MAX)
 		return -EINVAL;
 	if (uurb->buffer_length > 0 && !uurb->buffer)
 		return -EINVAL;
@@ -1423,10 +1426,6 @@ static int proc_do_submiturb(struct usb_
 		return -EINVAL;
 	}
 
-	if (uurb->buffer_length >= USBFS_XFER_MAX) {
-		ret = -EINVAL;
-		goto error;
-	}
 	if (uurb->buffer_length > 0 &&
 			!access_ok(is_in ? VERIFY_WRITE : VERIFY_READ,
 				uurb->buffer, uurb->buffer_length)) {
@@ -1529,11 +1528,17 @@ static int proc_do_submiturb(struct usb_
 	as->urb->start_frame = uurb->start_frame;
 	as->urb->number_of_packets = number_of_packets;
 	as->urb->stream_id = stream_id;
-	if (uurb->type == USBDEVFS_URB_TYPE_ISO ||
-			ps->dev->speed == USB_SPEED_HIGH)
-		as->urb->interval = 1 << min(15, ep->desc.bInterval - 1);
-	else
-		as->urb->interval = ep->desc.bInterval;
+
+	if (ep->desc.bInterval) {
+		if (uurb->type == USBDEVFS_URB_TYPE_ISO ||
+				ps->dev->speed == USB_SPEED_HIGH ||
+				ps->dev->speed >= USB_SPEED_SUPER)
+			as->urb->interval = 1 <<
+					min(15, ep->desc.bInterval - 1);
+		else
+			as->urb->interval = ep->desc.bInterval;
+	}
+
 	as->urb->context = as;
 	as->urb->complete = async_completed;
 	for (totlen = u = 0; u < number_of_packets; u++) {
@@ -1646,6 +1651,18 @@ static int proc_unlinkurb(struct usb_dev
 	return 0;
 }
 
+static void compute_isochronous_actual_length(struct urb *urb)
+{
+	unsigned int i;
+
+	if (urb->number_of_packets > 0) {
+		urb->actual_length = 0;
+		for (i = 0; i < urb->number_of_packets; i++)
+			urb->actual_length +=
+					urb->iso_frame_desc[i].actual_length;
+	}
+}
+
 static int processcompl(struct async *as, void __user * __user *arg)
 {
 	struct urb *urb = as->urb;
@@ -1653,6 +1670,7 @@ static int processcompl(struct async *as
 	void __user *addr = as->userurb;
 	unsigned int i;
 
+	compute_isochronous_actual_length(urb);
 	if (as->userbuffer && urb->actual_length) {
 		if (copy_urb_data_to_user(as->userbuffer, urb))
 			goto err_out;
@@ -1822,6 +1840,7 @@ static int processcompl_compat(struct as
 	void __user *addr = as->userurb;
 	unsigned int i;
 
+	compute_isochronous_actual_length(urb);
 	if (as->userbuffer && urb->actual_length) {
 		if (copy_urb_data_to_user(as->userbuffer, urb))
 			return -EFAULT;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/core/driver.c linux-libre-4.4.107-gnu/drivers/usb/core/driver.c
--- linux-libre-4.4-gnu/drivers/usb/core/driver.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/core/driver.c	2017-12-20 04:05:01.000000000 -0500
@@ -284,7 +284,7 @@ static int usb_probe_interface(struct de
 	struct usb_device *udev = interface_to_usbdev(intf);
 	const struct usb_device_id *id;
 	int error = -ENODEV;
-	int lpm_disable_error;
+	int lpm_disable_error = -ENODEV;
 
 	dev_dbg(dev, "%s\n", __func__);
 
@@ -336,12 +336,14 @@ static int usb_probe_interface(struct de
 	 * setting during probe, that should also be fine.  usb_set_interface()
 	 * will attempt to disable LPM, and fail if it can't disable it.
 	 */
-	lpm_disable_error = usb_unlocked_disable_lpm(udev);
-	if (lpm_disable_error && driver->disable_hub_initiated_lpm) {
-		dev_err(&intf->dev, "%s Failed to disable LPM for driver %s\n.",
-				__func__, driver->name);
-		error = lpm_disable_error;
-		goto err;
+	if (driver->disable_hub_initiated_lpm) {
+		lpm_disable_error = usb_unlocked_disable_lpm(udev);
+		if (lpm_disable_error) {
+			dev_err(&intf->dev, "%s Failed to disable LPM for driver %s\n.",
+					__func__, driver->name);
+			error = lpm_disable_error;
+			goto err;
+		}
 	}
 
 	/* Carry out a deferred switch to altsetting 0 */
@@ -391,7 +393,8 @@ static int usb_unbind_interface(struct d
 	struct usb_interface *intf = to_usb_interface(dev);
 	struct usb_host_endpoint *ep, **eps = NULL;
 	struct usb_device *udev;
-	int i, j, error, r, lpm_disable_error;
+	int i, j, error, r;
+	int lpm_disable_error = -ENODEV;
 
 	intf->condition = USB_INTERFACE_UNBINDING;
 
@@ -399,12 +402,13 @@ static int usb_unbind_interface(struct d
 	udev = interface_to_usbdev(intf);
 	error = usb_autoresume_device(udev);
 
-	/* Hub-initiated LPM policy may change, so attempt to disable LPM until
+	/* If hub-initiated LPM policy may change, attempt to disable LPM until
 	 * the driver is unbound.  If LPM isn't disabled, that's fine because it
 	 * wouldn't be enabled unless all the bound interfaces supported
 	 * hub-initiated LPM.
 	 */
-	lpm_disable_error = usb_unlocked_disable_lpm(udev);
+	if (driver->disable_hub_initiated_lpm)
+		lpm_disable_error = usb_unlocked_disable_lpm(udev);
 
 	/*
 	 * Terminate all URBs for this interface unless the driver
@@ -502,11 +506,15 @@ static int usb_unbind_interface(struct d
 int usb_driver_claim_interface(struct usb_driver *driver,
 				struct usb_interface *iface, void *priv)
 {
-	struct device *dev = &iface->dev;
+	struct device *dev;
 	struct usb_device *udev;
 	int retval = 0;
-	int lpm_disable_error;
+	int lpm_disable_error = -ENODEV;
+
+	if (!iface)
+		return -ENODEV;
 
+	dev = &iface->dev;
 	if (dev->driver)
 		return -EBUSY;
 
@@ -522,12 +530,14 @@ int usb_driver_claim_interface(struct us
 
 	iface->condition = USB_INTERFACE_BOUND;
 
-	/* Disable LPM until this driver is bound. */
-	lpm_disable_error = usb_unlocked_disable_lpm(udev);
-	if (lpm_disable_error && driver->disable_hub_initiated_lpm) {
-		dev_err(&iface->dev, "%s Failed to disable LPM for driver %s\n.",
-				__func__, driver->name);
-		return -ENOMEM;
+	/* See the comment about disabling LPM in usb_probe_interface(). */
+	if (driver->disable_hub_initiated_lpm) {
+		lpm_disable_error = usb_unlocked_disable_lpm(udev);
+		if (lpm_disable_error) {
+			dev_err(&iface->dev, "%s Failed to disable LPM for driver %s\n.",
+					__func__, driver->name);
+			return -ENOMEM;
+		}
 	}
 
 	/* Claimed interfaces are initially inactive (suspended) and
@@ -1318,6 +1328,24 @@ static int usb_suspend_both(struct usb_d
 		 */
 		if (udev->parent && !PMSG_IS_AUTO(msg))
 			status = 0;
+
+		/*
+		 * If the device is inaccessible, don't try to resume
+		 * suspended interfaces and just return the error.
+		 */
+		if (status && status != -EBUSY) {
+			int err;
+			u16 devstat;
+
+			err = usb_get_status(udev, USB_RECIP_DEVICE, 0,
+					     &devstat);
+			if (err) {
+				dev_err(&udev->dev,
+					"Failed to suspend device, error %d\n",
+					status);
+				goto done;
+			}
+		}
 	}
 
 	/* If the suspend failed, resume interfaces that did get suspended */
@@ -1750,6 +1778,9 @@ static int autosuspend_check(struct usb_
 	int			w, i;
 	struct usb_interface	*intf;
 
+	if (udev->state == USB_STATE_NOTATTACHED)
+		return -ENODEV;
+
 	/* Fail if autosuspend is disabled, or any interfaces are in use, or
 	 * any interface drivers require remote wakeup but it isn't available.
 	 */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/core/file.c linux-libre-4.4.107-gnu/drivers/usb/core/file.c
--- linux-libre-4.4-gnu/drivers/usb/core/file.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/core/file.c	2017-12-20 04:05:01.000000000 -0500
@@ -26,6 +26,7 @@
 #define MAX_USB_MINORS	256
 static const struct file_operations *usb_minors[MAX_USB_MINORS];
 static DECLARE_RWSEM(minor_rwsem);
+static DEFINE_MUTEX(init_usb_class_mutex);
 
 static int usb_open(struct inode *inode, struct file *file)
 {
@@ -108,8 +109,9 @@ static void release_usb_class(struct kre
 
 static void destroy_usb_class(void)
 {
-	if (usb_class)
-		kref_put(&usb_class->kref, release_usb_class);
+	mutex_lock(&init_usb_class_mutex);
+	kref_put(&usb_class->kref, release_usb_class);
+	mutex_unlock(&init_usb_class_mutex);
 }
 
 int usb_major_init(void)
@@ -171,7 +173,10 @@ int usb_register_dev(struct usb_interfac
 	if (intf->minor >= 0)
 		return -EADDRINUSE;
 
+	mutex_lock(&init_usb_class_mutex);
 	retval = init_usb_class();
+	mutex_unlock(&init_usb_class_mutex);
+
 	if (retval)
 		return retval;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/core/hcd.c linux-libre-4.4.107-gnu/drivers/usb/core/hcd.c
--- linux-libre-4.4-gnu/drivers/usb/core/hcd.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/core/hcd.c	2017-12-20 04:05:01.000000000 -0500
@@ -499,8 +499,10 @@ static int rh_call_control (struct usb_h
 	 */
 	tbuf_size =  max_t(u16, sizeof(struct usb_hub_descriptor), wLength);
 	tbuf = kzalloc(tbuf_size, GFP_KERNEL);
-	if (!tbuf)
-		return -ENOMEM;
+	if (!tbuf) {
+		status = -ENOMEM;
+		goto err_alloc;
+	}
 
 	bufp = tbuf;
 
@@ -705,6 +707,7 @@ error:
 	}
 
 	kfree(tbuf);
+ err_alloc:
 
 	/* any errors get returned through the urb completion */
 	spin_lock_irq(&hcd_root_hub_lock);
@@ -966,7 +969,7 @@ static void usb_bus_init (struct usb_bus
 	bus->bandwidth_allocated = 0;
 	bus->bandwidth_int_reqs  = 0;
 	bus->bandwidth_isoc_reqs = 0;
-	mutex_init(&bus->usb_address0_mutex);
+	mutex_init(&bus->devnum_next_mutex);
 
 	INIT_LIST_HEAD (&bus->bus_list);
 }
@@ -1078,7 +1081,7 @@ static int register_root_hub(struct usb_
 		retval = usb_get_bos_descriptor(usb_dev);
 		if (!retval) {
 			usb_dev->lpm_capable = usb_device_supports_lpm(usb_dev);
-		} else if (usb_dev->speed == USB_SPEED_SUPER) {
+		} else if (usb_dev->speed >= USB_SPEED_SUPER) {
 			mutex_unlock(&usb_bus_list_lock);
 			dev_dbg(parent_dev, "can't read %s bos descriptor %d\n",
 					dev_name(&usb_dev->dev), retval);
@@ -1693,7 +1696,7 @@ int usb_hcd_unlink_urb (struct urb *urb,
 		if (retval == 0)
 			retval = -EINPROGRESS;
 		else if (retval != -EIDRM && retval != -EBUSY)
-			dev_dbg(&udev->dev, "hcd_unlink_urb %p fail %d\n",
+			dev_dbg(&udev->dev, "hcd_unlink_urb %pK fail %d\n",
 					urb, retval);
 		usb_put_dev(udev);
 	}
@@ -1848,7 +1851,7 @@ void usb_hcd_flush_endpoint(struct usb_d
 	/* No more submits can occur */
 	spin_lock_irq(&hcd_urb_list_lock);
 rescan:
-	list_for_each_entry (urb, &ep->urb_list, urb_list) {
+	list_for_each_entry_reverse(urb, &ep->urb_list, urb_list) {
 		int	is_in;
 
 		if (urb->unlinked)
@@ -1860,7 +1863,7 @@ rescan:
 		/* kick hcd */
 		unlink1(hcd, urb, -ESHUTDOWN);
 		dev_dbg (hcd->self.controller,
-			"shutdown urb %p ep%d%s%s\n",
+			"shutdown urb %pK ep%d%s%s\n",
 			urb, usb_endpoint_num(&ep->desc),
 			is_in ? "in" : "out",
 			({	char *s;
@@ -2112,7 +2115,7 @@ int usb_alloc_streams(struct usb_interfa
 	hcd = bus_to_hcd(dev->bus);
 	if (!hcd->driver->alloc_streams || !hcd->driver->free_streams)
 		return -EINVAL;
-	if (dev->speed != USB_SPEED_SUPER)
+	if (dev->speed < USB_SPEED_SUPER)
 		return -EINVAL;
 	if (dev->state < USB_STATE_CONFIGURED)
 		return -ENODEV;
@@ -2160,7 +2163,7 @@ int usb_free_streams(struct usb_interfac
 
 	dev = interface_to_usbdev(interface);
 	hcd = bus_to_hcd(dev->bus);
-	if (dev->speed != USB_SPEED_SUPER)
+	if (dev->speed < USB_SPEED_SUPER)
 		return -EINVAL;
 
 	/* Double-free is not allowed */
@@ -2445,6 +2448,8 @@ void usb_hc_died (struct usb_hcd *hcd)
 	}
 	if (usb_hcd_is_primary_hcd(hcd) && hcd->shared_hcd) {
 		hcd = hcd->shared_hcd;
+		clear_bit(HCD_FLAG_RH_RUNNING, &hcd->flags);
+		set_bit(HCD_FLAG_DEAD, &hcd->flags);
 		if (hcd->rh_registered) {
 			clear_bit(HCD_FLAG_POLL_RH, &hcd->flags);
 
@@ -2497,9 +2502,18 @@ struct usb_hcd *usb_create_shared_hcd(co
 		return NULL;
 	}
 	if (primary_hcd == NULL) {
+		hcd->address0_mutex = kmalloc(sizeof(*hcd->address0_mutex),
+				GFP_KERNEL);
+		if (!hcd->address0_mutex) {
+			kfree(hcd);
+			dev_dbg(dev, "hcd address0 mutex alloc failed\n");
+			return NULL;
+		}
+		mutex_init(hcd->address0_mutex);
 		hcd->bandwidth_mutex = kmalloc(sizeof(*hcd->bandwidth_mutex),
 				GFP_KERNEL);
 		if (!hcd->bandwidth_mutex) {
+			kfree(hcd->address0_mutex);
 			kfree(hcd);
 			dev_dbg(dev, "hcd bandwidth mutex alloc failed\n");
 			return NULL;
@@ -2508,6 +2522,7 @@ struct usb_hcd *usb_create_shared_hcd(co
 		dev_set_drvdata(dev, hcd);
 	} else {
 		mutex_lock(&usb_port_peer_mutex);
+		hcd->address0_mutex = primary_hcd->address0_mutex;
 		hcd->bandwidth_mutex = primary_hcd->bandwidth_mutex;
 		hcd->primary_hcd = primary_hcd;
 		primary_hcd->primary_hcd = primary_hcd;
@@ -2564,24 +2579,23 @@ EXPORT_SYMBOL_GPL(usb_create_hcd);
  * Don't deallocate the bandwidth_mutex until the last shared usb_hcd is
  * deallocated.
  *
- * Make sure to only deallocate the bandwidth_mutex when the primary HCD is
- * freed.  When hcd_release() is called for either hcd in a peer set
- * invalidate the peer's ->shared_hcd and ->primary_hcd pointers to
- * block new peering attempts
+ * Make sure to deallocate the bandwidth_mutex only when the last HCD is
+ * freed.  When hcd_release() is called for either hcd in a peer set,
+ * invalidate the peer's ->shared_hcd and ->primary_hcd pointers.
  */
 static void hcd_release(struct kref *kref)
 {
 	struct usb_hcd *hcd = container_of (kref, struct usb_hcd, kref);
 
 	mutex_lock(&usb_port_peer_mutex);
-	if (usb_hcd_is_primary_hcd(hcd))
-		kfree(hcd->bandwidth_mutex);
 	if (hcd->shared_hcd) {
 		struct usb_hcd *peer = hcd->shared_hcd;
 
 		peer->shared_hcd = NULL;
-		if (peer->primary_hcd == hcd)
-			peer->primary_hcd = NULL;
+		peer->primary_hcd = NULL;
+	} else {
+		kfree(hcd->address0_mutex);
+		kfree(hcd->bandwidth_mutex);
 	}
 	mutex_unlock(&usb_port_peer_mutex);
 	kfree(hcd);
@@ -2983,6 +2997,7 @@ void usb_remove_hcd(struct usb_hcd *hcd)
 	}
 
 	usb_put_invalidate_rhdev(hcd);
+	hcd->flags = 0;
 }
 EXPORT_SYMBOL_GPL(usb_remove_hcd);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/core/hcd-pci.c linux-libre-4.4.107-gnu/drivers/usb/core/hcd-pci.c
--- linux-libre-4.4-gnu/drivers/usb/core/hcd-pci.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/core/hcd-pci.c	2017-12-20 04:05:01.000000000 -0500
@@ -74,6 +74,15 @@ static void for_each_companion(struct pc
 		if (companion->bus != pdev->bus ||
 				PCI_SLOT(companion->devfn) != slot)
 			continue;
+
+		/*
+		 * Companion device should be either UHCI,OHCI or EHCI host
+		 * controller, otherwise skip.
+		 */
+		if (companion->class != CL_UHCI && companion->class != CL_OHCI &&
+				companion->class != CL_EHCI)
+			continue;
+
 		companion_hcd = pci_get_drvdata(companion);
 		if (!companion_hcd || !companion_hcd->self.root_hub)
 			continue;
@@ -197,7 +206,7 @@ int usb_hcd_pci_probe(struct pci_dev *de
 	 * The xHCI driver has its own irq management
 	 * make sure irq setup is not touched for xhci in generic hcd code
 	 */
-	if ((driver->flags & HCD_MASK) != HCD_USB3) {
+	if ((driver->flags & HCD_MASK) < HCD_USB3) {
 		if (!dev->irq) {
 			dev_err(&dev->dev,
 			"Found HC with no IRQ. Check BIOS/PCI %s setup!\n",
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/core/hub.c linux-libre-4.4.107-gnu/drivers/usb/core/hub.c
--- linux-libre-4.4-gnu/drivers/usb/core/hub.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/core/hub.c	2017-12-20 04:05:01.000000000 -0500
@@ -101,6 +101,7 @@ EXPORT_SYMBOL_GPL(ehci_cf_port_reset_rws
 
 static void hub_release(struct kref *kref);
 static int usb_reset_and_verify_device(struct usb_device *udev);
+static int hub_port_disable(struct usb_hub *hub, int port1, int set_state);
 
 static inline char *portspeed(struct usb_hub *hub, int portstatus)
 {
@@ -298,7 +299,7 @@ static void usb_set_lpm_parameters(struc
 	unsigned int hub_u1_del;
 	unsigned int hub_u2_del;
 
-	if (!udev->lpm_capable || udev->speed != USB_SPEED_SUPER)
+	if (!udev->lpm_capable || udev->speed < USB_SPEED_SUPER)
 		return;
 
 	hub = usb_hub_to_struct_hub(udev->parent);
@@ -357,7 +358,8 @@ static void usb_set_lpm_parameters(struc
 }
 
 /* USB 2.0 spec Section 11.24.4.5 */
-static int get_hub_descriptor(struct usb_device *hdev, void *data)
+static int get_hub_descriptor(struct usb_device *hdev,
+		struct usb_hub_descriptor *desc)
 {
 	int i, ret, size;
 	unsigned dtype;
@@ -373,10 +375,18 @@ static int get_hub_descriptor(struct usb
 	for (i = 0; i < 3; i++) {
 		ret = usb_control_msg(hdev, usb_rcvctrlpipe(hdev, 0),
 			USB_REQ_GET_DESCRIPTOR, USB_DIR_IN | USB_RT_HUB,
-			dtype << 8, 0, data, size,
+			dtype << 8, 0, desc, size,
 			USB_CTRL_GET_TIMEOUT);
-		if (ret >= (USB_DT_HUB_NONVAR_SIZE + 2))
+		if (hub_is_superspeed(hdev)) {
+			if (ret == size)
+				return ret;
+		} else if (ret >= USB_DT_HUB_NONVAR_SIZE + 2) {
+			/* Make sure we have the DeviceRemovable field. */
+			size = USB_DT_HUB_NONVAR_SIZE + desc->bNbrPorts / 8 + 1;
+			if (ret < size)
+				return -EMSGSIZE;
 			return ret;
+		}
 	}
 	return -EINVAL;
 }
@@ -883,88 +893,6 @@ static int hub_set_port_link_state(struc
 }
 
 /*
- * If USB 3.0 ports are placed into the Disabled state, they will no longer
- * detect any device connects or disconnects.  This is generally not what the
- * USB core wants, since it expects a disabled port to produce a port status
- * change event when a new device connects.
- *
- * Instead, set the link state to Disabled, wait for the link to settle into
- * that state, clear any change bits, and then put the port into the RxDetect
- * state.
- */
-static int hub_usb3_port_disable(struct usb_hub *hub, int port1)
-{
-	int ret;
-	int total_time;
-	u16 portchange, portstatus;
-
-	if (!hub_is_superspeed(hub->hdev))
-		return -EINVAL;
-
-	ret = hub_port_status(hub, port1, &portstatus, &portchange);
-	if (ret < 0)
-		return ret;
-
-	/*
-	 * USB controller Advanced Micro Devices, Inc. [AMD] FCH USB XHCI
-	 * Controller [1022:7814] will have spurious result making the following
-	 * usb 3.0 device hotplugging route to the 2.0 root hub and recognized
-	 * as high-speed device if we set the usb 3.0 port link state to
-	 * Disabled. Since it's already in USB_SS_PORT_LS_RX_DETECT state, we
-	 * check the state here to avoid the bug.
-	 */
-	if ((portstatus & USB_PORT_STAT_LINK_STATE) ==
-				USB_SS_PORT_LS_RX_DETECT) {
-		dev_dbg(&hub->ports[port1 - 1]->dev,
-			 "Not disabling port; link state is RxDetect\n");
-		return ret;
-	}
-
-	ret = hub_set_port_link_state(hub, port1, USB_SS_PORT_LS_SS_DISABLED);
-	if (ret)
-		return ret;
-
-	/* Wait for the link to enter the disabled state. */
-	for (total_time = 0; ; total_time += HUB_DEBOUNCE_STEP) {
-		ret = hub_port_status(hub, port1, &portstatus, &portchange);
-		if (ret < 0)
-			return ret;
-
-		if ((portstatus & USB_PORT_STAT_LINK_STATE) ==
-				USB_SS_PORT_LS_SS_DISABLED)
-			break;
-		if (total_time >= HUB_DEBOUNCE_TIMEOUT)
-			break;
-		msleep(HUB_DEBOUNCE_STEP);
-	}
-	if (total_time >= HUB_DEBOUNCE_TIMEOUT)
-		dev_warn(&hub->ports[port1 - 1]->dev,
-				"Could not disable after %d ms\n", total_time);
-
-	return hub_set_port_link_state(hub, port1, USB_SS_PORT_LS_RX_DETECT);
-}
-
-static int hub_port_disable(struct usb_hub *hub, int port1, int set_state)
-{
-	struct usb_port *port_dev = hub->ports[port1 - 1];
-	struct usb_device *hdev = hub->hdev;
-	int ret = 0;
-
-	if (port_dev->child && set_state)
-		usb_set_device_state(port_dev->child, USB_STATE_NOTATTACHED);
-	if (!hub->error) {
-		if (hub_is_superspeed(hub->hdev))
-			ret = hub_usb3_port_disable(hub, port1);
-		else
-			ret = usb_clear_port_feature(hdev, port1,
-					USB_PORT_FEAT_ENABLE);
-	}
-	if (ret && ret != -ENODEV)
-		dev_err(&port_dev->dev, "cannot disable (err = %d)\n", ret);
-	return ret;
-}
-
-/*
  * Disable a port and mark a logical connect-change event, so that some
  * time later hub_wq will disconnect() any existing usb_device on the port
  * and will re-enumerate if there actually is a device attached.
@@ -1036,14 +964,11 @@ static void hub_activate(struct usb_hub
 
 	/* Continue a partial initialization */
 	if (type == HUB_INIT2 || type == HUB_INIT3) {
-		device_lock(hub->intfdev);
+		device_lock(&hdev->dev);
 
 		/* Was the hub disconnected while we were waiting? */
-		if (hub->disconnected) {
-			device_unlock(hub->intfdev);
-			kref_put(&hub->kref, hub_release);
-			return;
-		}
+		if (hub->disconnected)
+			goto disconnected;
 		if (type == HUB_INIT2)
 			goto init2;
 		goto init3;
@@ -1132,6 +1057,9 @@ static void hub_activate(struct usb_hub
 
 		portstatus = portchange = 0;
 		status = hub_port_status(hub, port1, &portstatus, &portchange);
+		if (status)
+			goto abort;
+
 		if (udev || (portstatus & USB_PORT_STAT_CONNECTION))
 			dev_dbg(&port_dev->dev, "status %04x change %04x\n",
 					portstatus, portchange);
@@ -1246,7 +1174,7 @@ static void hub_activate(struct usb_hub
 			queue_delayed_work(system_power_efficient_wq,
 					&hub->init_work,
 					msecs_to_jiffies(delay));
-			device_unlock(hub->intfdev);
+			device_unlock(&hdev->dev);
 			return;		/* Continues at init3: below */
 		} else {
 			msleep(delay);
@@ -1264,13 +1192,13 @@ static void hub_activate(struct usb_hub
 
 	/* Scan all ports that need attention */
 	kick_hub_wq(hub);
-
-	/* Allow autosuspend if it was suppressed */
-	if (type <= HUB_INIT3)
+ abort:
+	if (type == HUB_INIT2 || type == HUB_INIT3) {
+		/* Allow autosuspend if it was suppressed */
+ disconnected:
 		usb_autopm_put_interface_async(to_usb_interface(hub->intfdev));
-
-	if (type == HUB_INIT2 || type == HUB_INIT3)
-		device_unlock(hub->intfdev);
+		device_unlock(&hdev->dev);
+	}
 
 	kref_put(&hub->kref, hub_release);
 }
@@ -1299,8 +1227,6 @@ static void hub_quiesce(struct usb_hub *
 	struct usb_device *hdev = hub->hdev;
 	int i;
 
-	cancel_delayed_work_sync(&hub->init_work);
-
 	/* hub_wq and related activity won't re-trigger */
 	hub->quiescing = 1;
 
@@ -1378,7 +1304,7 @@ static int hub_configure(struct usb_hub
 	}
 	mutex_init(&hub->status_mutex);
 
-	hub->descriptor = kmalloc(sizeof(*hub->descriptor), GFP_KERNEL);
+	hub->descriptor = kzalloc(sizeof(*hub->descriptor), GFP_KERNEL);
 	if (!hub->descriptor) {
 		ret = -ENOMEM;
 		goto fail;
@@ -1386,13 +1312,19 @@ static int hub_configure(struct usb_hub
 
 	/* Request the entire hub descriptor.
 	 * hub->descriptor can handle USB_MAXCHILDREN ports,
-	 * but the hub can/will return fewer bytes here.
+	 * but a (non-SS) hub can/will return fewer bytes here.
 	 */
 	ret = get_hub_descriptor(hdev, hub->descriptor);
 	if (ret < 0) {
 		message = "can't read hub descriptor";
 		goto fail;
-	} else if (hub->descriptor->bNbrPorts > USB_MAXCHILDREN) {
+	}
+
+	maxchild = USB_MAXCHILDREN;
+	if (hub_is_superspeed(hdev))
+		maxchild = min_t(unsigned, maxchild, USB_SS_MAXPORTS);
+
+	if (hub->descriptor->bNbrPorts > maxchild) {
 		message = "hub has too many ports!";
 		ret = -ENODEV;
 		goto fail;
@@ -2066,7 +1998,7 @@ static void choose_devnum(struct usb_dev
 	struct usb_bus	*bus = udev->bus;
 
 	/* be safe when more hub events are proceed in parallel */
-	mutex_lock(&bus->usb_address0_mutex);
+	mutex_lock(&bus->devnum_next_mutex);
 	if (udev->wusb) {
 		devnum = udev->portnum + 1;
 		BUG_ON(test_bit(devnum, bus->devmap.devicemap));
@@ -2084,7 +2016,7 @@ static void choose_devnum(struct usb_dev
 		set_bit(devnum, bus->devmap.devicemap);
 		udev->devnum = devnum;
 	}
-	mutex_unlock(&bus->usb_address0_mutex);
+	mutex_unlock(&bus->devnum_next_mutex);
 }
 
 static void release_devnum(struct usb_device *udev)
@@ -2154,6 +2086,12 @@ void usb_disconnect(struct usb_device **
 	dev_info(&udev->dev, "USB disconnect, device number %d\n",
 			udev->devnum);
 
+	/*
+	 * Ensure that the pm runtime code knows that the USB device
+	 * is in the process of being disconnected.
+	 */
+	pm_runtime_barrier(&udev->dev);
+
 	usb_lock_device(udev);
 
 	hub_disconnect_children(udev);
@@ -2645,7 +2583,7 @@ static unsigned hub_is_wusb(struct usb_h
  */
 static bool use_new_scheme(struct usb_device *udev, int retry)
 {
-	if (udev->speed == USB_SPEED_SUPER)
+	if (udev->speed >= USB_SPEED_SUPER)
 		return false;
 
 	return USE_NEW_SCHEME(retry);
@@ -2688,8 +2626,15 @@ static int hub_port_wait_reset(struct us
 		if (ret < 0)
 			return ret;
 
-		/* The port state is unknown until the reset completes. */
-		if (!(portstatus & USB_PORT_STAT_RESET))
+		/*
+		 * The port state is unknown until the reset completes.
+		 *
+		 * On top of that, some chips may require additional time
+		 * to re-establish a connection after the reset is complete,
+		 * so also wait for the connection to be re-established.
+		 */
+		if (!(portstatus & USB_PORT_STAT_RESET) &&
+		    (portstatus & USB_PORT_STAT_CONNECTION))
 			break;
 
 		/* switch to the long delay after two short delay failures */
@@ -2711,13 +2656,16 @@ static int hub_port_wait_reset(struct us
 	if (!(portstatus & USB_PORT_STAT_CONNECTION))
 		return -ENOTCONN;
 
-	/* bomb out completely if the connection bounced.  A USB 3.0
-	 * connection may bounce if multiple warm resets were issued,
+	/* Retry if connect change is set but status is still connected.
+	 * A USB 3.0 connection may bounce if multiple warm resets were issued,
 	 * but the device may have successfully re-connected. Ignore it.
 	 */
 	if (!hub_is_superspeed(hub->hdev) &&
-			(portchange & USB_PORT_STAT_C_CONNECTION))
-		return -ENOTCONN;
+	    (portchange & USB_PORT_STAT_C_CONNECTION)) {
+		usb_clear_port_feature(hub->hdev, port1,
+				       USB_PORT_FEAT_C_CONNECTION);
+		return -EAGAIN;
+	}
 
 	if (!(portstatus & USB_PORT_STAT_ENABLE))
 		return -EBUSY;
@@ -3895,17 +3843,30 @@ static void usb_enable_link_state(struct
 		return;
 	}
 
-	if (usb_set_lpm_timeout(udev, state, timeout))
+	if (usb_set_lpm_timeout(udev, state, timeout)) {
 		/* If we can't set the parent hub U1/U2 timeout,
 		 * device-initiated LPM won't be allowed either, so let the xHCI
 		 * host know that this link state won't be enabled.
 		 */
 		hcd->driver->disable_usb3_lpm_timeout(hcd, udev, state);
+	} else {
+		/* Only a configured device will accept the Set Feature
+		 * U1/U2_ENABLE
+		 */
+		if (udev->actconfig)
+			usb_set_device_initiated_lpm(udev, state, true);
 
-	/* Only a configured device will accept the Set Feature U1/U2_ENABLE */
-	else if (udev->actconfig)
-		usb_set_device_initiated_lpm(udev, state, true);
-
+		/* As soon as usb_set_lpm_timeout(timeout) returns 0, the
+		 * hub-initiated LPM is enabled. Thus, LPM is enabled no
+		 * matter the result of usb_set_device_initiated_lpm().
+		 * The only difference is whether device is able to initiate
+		 * LPM.
+		 */
+		if (state == USB3_LPM_U1)
+			udev->usb3_lpm_u1_enabled = 1;
+		else if (state == USB3_LPM_U2)
+			udev->usb3_lpm_u2_enabled = 1;
+	}
 }
 
 /*
@@ -3945,6 +3906,18 @@ static int usb_disable_link_state(struct
 		dev_warn(&udev->dev, "Could not disable xHCI %s timeout, "
 				"bus schedule bandwidth may be impacted.\n",
 				usb3_lpm_names[state]);
+
+	/* As soon as usb_set_lpm_timeout(0) return 0, hub initiated LPM
+	 * is disabled. Hub will disallows link to enter U1/U2 as well,
+	 * even device is initiating LPM. Hence LPM is disabled if hub LPM
+	 * timeout set to 0, no matter device-initiated LPM is disabled or
+	 * not.
+	 */
+	if (state == USB3_LPM_U1)
+		udev->usb3_lpm_u1_enabled = 0;
+	else if (state == USB3_LPM_U2)
+		udev->usb3_lpm_u2_enabled = 0;
+
 	return 0;
 }
 
@@ -3960,7 +3933,7 @@ int usb_disable_lpm(struct usb_device *u
 	struct usb_hcd *hcd;
 
 	if (!udev || !udev->parent ||
-			udev->speed != USB_SPEED_SUPER ||
+			udev->speed < USB_SPEED_SUPER ||
 			!udev->lpm_capable ||
 			udev->state < USB_STATE_DEFAULT)
 		return 0;
@@ -3979,8 +3952,6 @@ int usb_disable_lpm(struct usb_device *u
 	if (usb_disable_link_state(hcd, udev, USB3_LPM_U2))
 		goto enable_lpm;
 
-	udev->usb3_lpm_enabled = 0;
-
 	return 0;
 
 enable_lpm:
@@ -4019,7 +3990,7 @@ void usb_enable_lpm(struct usb_device *u
 	struct usb_hcd *hcd;
 
 	if (!udev || !udev->parent ||
-			udev->speed != USB_SPEED_SUPER ||
+			udev->speed < USB_SPEED_SUPER ||
 			!udev->lpm_capable ||
 			udev->state < USB_STATE_DEFAULT)
 		return;
@@ -4038,8 +4009,6 @@ void usb_enable_lpm(struct usb_device *u
 
 	usb_enable_link_state(hcd, udev, USB3_LPM_U1);
 	usb_enable_link_state(hcd, udev, USB3_LPM_U2);
-
-	udev->usb3_lpm_enabled = 1;
 }
 EXPORT_SYMBOL_GPL(usb_enable_lpm);
 
@@ -4057,6 +4026,26 @@ void usb_unlocked_enable_lpm(struct usb_
 }
 EXPORT_SYMBOL_GPL(usb_unlocked_enable_lpm);
 
+/* usb3 devices use U3 for disabled, make sure remote wakeup is disabled */
+static void hub_usb3_port_prepare_disable(struct usb_hub *hub,
+					  struct usb_port *port_dev)
+{
+	struct usb_device *udev = port_dev->child;
+	int ret;
+
+	if (udev && udev->port_is_suspended && udev->do_remote_wakeup) {
+		ret = hub_set_port_link_state(hub, port_dev->portnum,
+					      USB_SS_PORT_LS_U0);
+		if (!ret) {
+			msleep(USB_RESUME_TIMEOUT);
+			ret = usb_disable_remote_wakeup(udev);
+		}
+		if (ret)
+			dev_warn(&udev->dev,
+				 "Port disable: can't disable remote wake\n");
+		udev->do_remote_wakeup = 0;
+	}
+}
 
 #else	/* CONFIG_PM */
 
@@ -4064,6 +4053,9 @@ EXPORT_SYMBOL_GPL(usb_unlocked_enable_lp
 #define hub_resume		NULL
 #define hub_reset_resume	NULL
 
+static inline void hub_usb3_port_prepare_disable(struct usb_hub *hub,
+						 struct usb_port *port_dev) { }
+
 int usb_disable_lpm(struct usb_device *udev)
 {
 	return 0;
@@ -4099,6 +4091,34 @@ static int hub_handle_remote_wakeup(stru
 
 #endif	/* CONFIG_PM */
 
+/*
+ * USB-3 does not have a similar link state as USB-2 that will avoid negotiating
+ * a connection with a plugged-in cable but will signal the host when the cable
+ * is unplugged. Disable remote wake and set link state to U3 for USB-3 devices
+ */
+static int hub_port_disable(struct usb_hub *hub, int port1, int set_state)
+{
+	struct usb_port *port_dev = hub->ports[port1 - 1];
+	struct usb_device *hdev = hub->hdev;
+	int ret = 0;
+
+	if (!hub->error) {
+		if (hub_is_superspeed(hub->hdev)) {
+			hub_usb3_port_prepare_disable(hub, port_dev);
+			ret = hub_set_port_link_state(hub, port_dev->portnum,
+						      USB_SS_PORT_LS_U3);
+		} else {
+			ret = usb_clear_port_feature(hdev, port1,
+					USB_PORT_FEAT_ENABLE);
+		}
+	}
+	if (port_dev->child && set_state)
+		usb_set_device_state(port_dev->child, USB_STATE_NOTATTACHED);
+	if (ret && ret != -ENODEV)
+		dev_err(&port_dev->dev, "cannot disable (err = %d)\n", ret);
+	return ret;
+}
+
 
 /* USB 2.0 spec, 7.1.7.3 / fig 7-29:
  *
@@ -4213,7 +4233,7 @@ static void hub_set_initial_usb2_lpm_pol
 	struct usb_hub *hub = usb_hub_to_struct_hub(udev->parent);
 	int connect_type = USB_PORT_CONNECT_TYPE_UNKNOWN;
 
-	if (!udev->usb2_hw_lpm_capable)
+	if (!udev->usb2_hw_lpm_capable || !udev->bos)
 		return;
 
 	if (hub)
@@ -4256,7 +4276,7 @@ hub_port_init(struct usb_hub *hub, struc
 {
 	struct usb_device	*hdev = hub->hdev;
 	struct usb_hcd		*hcd = bus_to_hcd(hdev->bus);
-	int			i, j, retval;
+	int			retries, operations, retval, i;
 	unsigned		delay = HUB_SHORT_RESET_TIME;
 	enum usb_device_speed	oldspeed = udev->speed;
 	const char		*speed;
@@ -4276,7 +4296,7 @@ hub_port_init(struct usb_hub *hub, struc
 	if (oldspeed == USB_SPEED_LOW)
 		delay = HUB_LONG_RESET_TIME;
 
-	mutex_lock(&hdev->bus->usb_address0_mutex);
+	mutex_lock(hcd->address0_mutex);
 
 	/* Reset the device; full speed may morph to high speed */
 	/* FIXME a USB 2.0 device may morph into SuperSpeed on reset. */
@@ -4287,7 +4307,9 @@ hub_port_init(struct usb_hub *hub, struc
 
 	retval = -ENODEV;
 
-	if (oldspeed != USB_SPEED_UNKNOWN && oldspeed != udev->speed) {
+	/* Don't allow speed changes at reset, except usb 3.0 to faster */
+	if (oldspeed != USB_SPEED_UNKNOWN && oldspeed != udev->speed &&
+	    !(oldspeed == USB_SPEED_SUPER && udev->speed > oldspeed)) {
 		dev_dbg(&udev->dev, "device reset changed speed!\n");
 		goto fail;
 	}
@@ -4299,6 +4321,7 @@ hub_port_init(struct usb_hub *hub, struc
 	 * reported as 0xff in the device descriptor). WUSB1.0[4.8.1].
 	 */
 	switch (udev->speed) {
+	case USB_SPEED_SUPER_PLUS:
 	case USB_SPEED_SUPER:
 	case USB_SPEED_WIRELESS:	/* fixed at 512 */
 		udev->ep0.desc.wMaxPacketSize = cpu_to_le16(512);
@@ -4325,7 +4348,7 @@ hub_port_init(struct usb_hub *hub, struc
 	else
 		speed = usb_speed_string(udev->speed);
 
-	if (udev->speed != USB_SPEED_SUPER)
+	if (udev->speed < USB_SPEED_SUPER)
 		dev_info(&udev->dev,
 				"%s %s USB device number %d using %s\n",
 				(udev->config) ? "reset" : "new", speed,
@@ -4358,7 +4381,7 @@ hub_port_init(struct usb_hub *hub, struc
 	 * first 8 bytes of the device descriptor to get the ep0 maxpacket
 	 * value.
 	 */
-	for (i = 0; i < GET_DESCRIPTOR_TRIES; (++i, msleep(100))) {
+	for (retries = 0; retries < GET_DESCRIPTOR_TRIES; (++retries, msleep(100))) {
 		bool did_new_scheme = false;
 
 		if (use_new_scheme(udev, retry_counter)) {
@@ -4385,7 +4408,7 @@ hub_port_init(struct usb_hub *hub, struc
 			 * 255 is for WUSB devices, we actually need to use
 			 * 512 (WUSB1.0[4.8.1]).
 			 */
-			for (j = 0; j < 3; ++j) {
+			for (operations = 0; operations < 3; ++operations) {
 				buf->bMaxPacketSize0 = 0;
 				r = usb_control_msg(udev, usb_rcvaddr0pipe(),
 					USB_REQ_GET_DESCRIPTOR, USB_DIR_IN,
@@ -4405,7 +4428,13 @@ hub_port_init(struct usb_hub *hub, struc
 						r = -EPROTO;
 					break;
 				}
-				if (r == 0)
+				/*
+				 * Some devices time out if they are powered on
+				 * when already connected. They need a second
+				 * reset. But only on the first attempt,
+				 * lest we get into a time out/reset loop
+				 */
+				if (r == 0  || (r == -ETIMEDOUT && retries == 0))
 					break;
 			}
 			udev->descriptor.bMaxPacketSize0 =
@@ -4437,7 +4466,7 @@ hub_port_init(struct usb_hub *hub, struc
 		 * authorization will assign the final address.
 		 */
 		if (udev->wusb == 0) {
-			for (j = 0; j < SET_ADDRESS_TRIES; ++j) {
+			for (operations = 0; operations < SET_ADDRESS_TRIES; ++operations) {
 				retval = hub_set_address(udev, devnum);
 				if (retval >= 0)
 					break;
@@ -4449,11 +4478,12 @@ hub_port_init(struct usb_hub *hub, struc
 							devnum, retval);
 				goto fail;
 			}
-			if (udev->speed == USB_SPEED_SUPER) {
+			if (udev->speed >= USB_SPEED_SUPER) {
 				devnum = udev->devnum;
 				dev_info(&udev->dev,
-						"%s SuperSpeed USB device number %d using %s\n",
+						"%s SuperSpeed%s USB device number %d using %s\n",
 						(udev->config) ? "reset" : "new",
+					 (udev->speed == USB_SPEED_SUPER_PLUS) ? "Plus" : "",
 						devnum, udev->bus->controller->driver->name);
 			}
 
@@ -4492,7 +4522,7 @@ hub_port_init(struct usb_hub *hub, struc
 	 * got from those devices show they aren't superspeed devices. Warm
 	 * reset the port attached by the devices can fix them.
 	 */
-	if ((udev->speed == USB_SPEED_SUPER) &&
+	if ((udev->speed >= USB_SPEED_SUPER) &&
 			(le16_to_cpu(udev->descriptor.bcdUSB) < 0x0300)) {
 		dev_err(&udev->dev, "got a wrong device descriptor, "
 				"warm reset device\n");
@@ -4503,7 +4533,7 @@ hub_port_init(struct usb_hub *hub, struc
 	}
 
 	if (udev->descriptor.bMaxPacketSize0 == 0xff ||
-			udev->speed == USB_SPEED_SUPER)
+			udev->speed >= USB_SPEED_SUPER)
 		i = 512;
 	else
 		i = udev->descriptor.bMaxPacketSize0;
@@ -4552,7 +4582,7 @@ fail:
 		hub_port_disable(hub, port1, 0);
 		update_devnum(udev, devnum);	/* for disconnect processing */
 	}
-	mutex_unlock(&hdev->bus->usb_address0_mutex);
+	mutex_unlock(hcd->address0_mutex);
 	return retval;
 }
 
@@ -4634,7 +4664,8 @@ hub_power_remaining(struct usb_hub *hub)
 static void hub_port_connect(struct usb_hub *hub, int port1, u16 portstatus,
 		u16 portchange)
 {
-	int status, i;
+	int status = -ENODEV;
+	int i;
 	unsigned unit_load;
 	struct usb_device *hdev = hub->hdev;
 	struct usb_hcd *hcd = bus_to_hcd(hdev->bus);
@@ -4713,7 +4744,7 @@ static void hub_port_connect(struct usb_
 		udev->level = hdev->level + 1;
 		udev->wusb = hub_is_wusb(hub);
 
-		/* Only USB 3.0 devices are connected to SuperSpeed hubs. */
+		/* Devices connected to SuperSpeed hubs are USB 3.0 or later */
 		if (hub_is_superspeed(hub->hdev))
 			udev->speed = USB_SPEED_SUPER;
 		else
@@ -4733,7 +4764,7 @@ static void hub_port_connect(struct usb_
 			goto loop;
 
 		if (udev->quirks & USB_QUIRK_DELAY_INIT)
-			msleep(1000);
+			msleep(2000);
 
 		/* consecutive bus-powered hubs aren't reliable; they can
 		 * violate the voltage drop budget.  if the new child has
@@ -4827,6 +4858,15 @@ loop:
 		usb_put_dev(udev);
 		if ((status == -ENOTCONN) || (status == -ENOTSUPP))
 			break;
+
+		/* When halfway through our retry count, power-cycle the port */
+		if (i == (SET_CONFIG_TRIES / 2) - 1) {
+			dev_info(&port_dev->dev, "attempt power cycle\n");
+			usb_hub_set_port_power(hdev, hub, port1, false);
+			msleep(2 * hub_power_on_good_delay(hub));
+			usb_hub_set_port_power(hdev, hub, port1, true);
+			msleep(hub_power_on_good_delay(hub));
+		}
 	}
 	if (hub->hdev->parent ||
 			!hcd->driver->port_handed_over ||
@@ -4838,9 +4878,10 @@ loop:
 
 done:
 	hub_port_disable(hub, port1, 1);
-	if (hcd->driver->relinquish_port && !hub->hdev->parent)
-		hcd->driver->relinquish_port(hcd, port1);
-
+	if (hcd->driver->relinquish_port && !hub->hdev->parent) {
+		if (status != -ENOTCONN && status != -ENODEV)
+			hcd->driver->relinquish_port(hcd, port1);
+	}
 }
 
 /* Handle physical or logical connection change events.
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/core/quirks.c linux-libre-4.4.107-gnu/drivers/usb/core/quirks.c
--- linux-libre-4.4-gnu/drivers/usb/core/quirks.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/core/quirks.c	2017-12-20 04:05:01.000000000 -0500
@@ -37,6 +37,10 @@ static const struct usb_device_id usb_qu
 	/* CBM - Flash disk */
 	{ USB_DEVICE(0x0204, 0x6025), .driver_info = USB_QUIRK_RESET_RESUME },
 
+	/* WORLDE easy key (easykey.25) MIDI controller  */
+	{ USB_DEVICE(0x0218, 0x0401), .driver_info =
+			USB_QUIRK_CONFIG_INTF_STRINGS },
+
 	/* HP 5300/5370C scanner */
 	{ USB_DEVICE(0x03f0, 0x0701), .driver_info =
 			USB_QUIRK_STRING_FETCH_255 },
@@ -44,14 +48,18 @@ static const struct usb_device_id usb_qu
 	/* Creative SB Audigy 2 NX */
 	{ USB_DEVICE(0x041e, 0x3020), .driver_info = USB_QUIRK_RESET_RESUME },
 
+	/* USB3503 */
+	{ USB_DEVICE(0x0424, 0x3503), .driver_info = USB_QUIRK_RESET_RESUME },
+
 	/* Microsoft Wireless Laser Mouse 6000 Receiver */
 	{ USB_DEVICE(0x045e, 0x00e1), .driver_info = USB_QUIRK_RESET_RESUME },
 
 	/* Microsoft LifeCam-VX700 v2.0 */
 	{ USB_DEVICE(0x045e, 0x0770), .driver_info = USB_QUIRK_RESET_RESUME },
 
-	/* Logitech HD Pro Webcams C920 and C930e */
+	/* Logitech HD Pro Webcams C920, C920-C and C930e */
 	{ USB_DEVICE(0x046d, 0x082d), .driver_info = USB_QUIRK_DELAY_INIT },
+	{ USB_DEVICE(0x046d, 0x0841), .driver_info = USB_QUIRK_DELAY_INIT },
 	{ USB_DEVICE(0x046d, 0x0843), .driver_info = USB_QUIRK_DELAY_INIT },
 
 	/* Logitech ConferenceCam CC3000e */
@@ -125,6 +133,9 @@ static const struct usb_device_id usb_qu
 	{ USB_DEVICE(0x04f3, 0x016f), .driver_info =
 			USB_QUIRK_DEVICE_QUALIFIER },
 
+	{ USB_DEVICE(0x04f3, 0x0381), .driver_info =
+			USB_QUIRK_NO_LPM },
+
 	{ USB_DEVICE(0x04f3, 0x21b8), .driver_info =
 			USB_QUIRK_DEVICE_QUALIFIER },
 
@@ -140,6 +151,12 @@ static const struct usb_device_id usb_qu
 	/* appletouch */
 	{ USB_DEVICE(0x05ac, 0x021a), .driver_info = USB_QUIRK_RESET_RESUME },
 
+	/* Genesys Logic hub, internally used by KY-688 USB 3.1 Type-C Hub */
+	{ USB_DEVICE(0x05e3, 0x0612), .driver_info = USB_QUIRK_NO_LPM },
+
+	/* Genesys Logic hub, internally used by Moshi USB to Ethernet Adapter */
+	{ USB_DEVICE(0x05e3, 0x0616), .driver_info = USB_QUIRK_NO_LPM },
+
 	/* Avision AV600U */
 	{ USB_DEVICE(0x0638, 0x0a13), .driver_info =
 	  USB_QUIRK_STRING_FETCH_255 },
@@ -160,6 +177,14 @@ static const struct usb_device_id usb_qu
 	/* M-Systems Flash Disk Pioneers */
 	{ USB_DEVICE(0x08ec, 0x1000), .driver_info = USB_QUIRK_RESET_RESUME },
 
+	/* Baum Vario Ultra */
+	{ USB_DEVICE(0x0904, 0x6101), .driver_info =
+			USB_QUIRK_LINEAR_FRAME_INTR_BINTERVAL },
+	{ USB_DEVICE(0x0904, 0x6102), .driver_info =
+			USB_QUIRK_LINEAR_FRAME_INTR_BINTERVAL },
+	{ USB_DEVICE(0x0904, 0x6103), .driver_info =
+			USB_QUIRK_LINEAR_FRAME_INTR_BINTERVAL },
+
 	/* Keytouch QWERTY Panel keyboard */
 	{ USB_DEVICE(0x0926, 0x3333), .driver_info =
 			USB_QUIRK_CONFIG_INTF_STRINGS },
@@ -173,6 +198,10 @@ static const struct usb_device_id usb_qu
 	/* MAYA44USB sound device */
 	{ USB_DEVICE(0x0a92, 0x0091), .driver_info = USB_QUIRK_RESET_RESUME },
 
+	/* ASUS Base Station(T100) */
+	{ USB_DEVICE(0x0b05, 0x17e0), .driver_info =
+			USB_QUIRK_IGNORE_REMOTE_WAKEUP },
+
 	/* Action Semiconductor flash disk */
 	{ USB_DEVICE(0x10d6, 0x2200), .driver_info =
 			USB_QUIRK_STRING_FETCH_255 },
@@ -188,26 +217,36 @@ static const struct usb_device_id usb_qu
 	{ USB_DEVICE(0x1908, 0x1315), .driver_info =
 			USB_QUIRK_HONOR_BNUMINTERFACES },
 
-	/* INTEL VALUE SSD */
-	{ USB_DEVICE(0x8086, 0xf1a5), .driver_info = USB_QUIRK_RESET_RESUME },
-
-	/* USB3503 */
-	{ USB_DEVICE(0x0424, 0x3503), .driver_info = USB_QUIRK_RESET_RESUME },
-
-	/* ASUS Base Station(T100) */
-	{ USB_DEVICE(0x0b05, 0x17e0), .driver_info =
-			USB_QUIRK_IGNORE_REMOTE_WAKEUP },
-
 	/* Protocol and OTG Electrical Test Device */
 	{ USB_DEVICE(0x1a0a, 0x0200), .driver_info =
 			USB_QUIRK_LINEAR_UFRAME_INTR_BINTERVAL },
 
+	/* Corsair Strafe RGB */
+	{ USB_DEVICE(0x1b1c, 0x1b20), .driver_info = USB_QUIRK_DELAY_INIT },
+
+	/* Corsair K70 LUX */
+	{ USB_DEVICE(0x1b1c, 0x1b36), .driver_info = USB_QUIRK_DELAY_INIT },
+
+	/* MIDI keyboard WORLDE MINI */
+	{ USB_DEVICE(0x1c75, 0x0204), .driver_info =
+			USB_QUIRK_CONFIG_INTF_STRINGS },
+
+	/* Acer C120 LED Projector */
+	{ USB_DEVICE(0x1de1, 0xc102), .driver_info = USB_QUIRK_NO_LPM },
+
 	/* Blackmagic Design Intensity Shuttle */
 	{ USB_DEVICE(0x1edb, 0xbd3b), .driver_info = USB_QUIRK_NO_LPM },
 
 	/* Blackmagic Design UltraStudio SDI */
 	{ USB_DEVICE(0x1edb, 0xbd4f), .driver_info = USB_QUIRK_NO_LPM },
 
+	/* Hauppauge HVR-950q */
+	{ USB_DEVICE(0x2040, 0x7200), .driver_info =
+			USB_QUIRK_CONFIG_INTF_STRINGS },
+
+	/* INTEL VALUE SSD */
+	{ USB_DEVICE(0x8086, 0xf1a5), .driver_info = USB_QUIRK_RESET_RESUME },
+
 	{ }  /* terminating entry must be last */
 };
 
@@ -227,6 +266,7 @@ static const struct usb_device_id usb_am
 	{ USB_DEVICE(0x093a, 0x2500), .driver_info = USB_QUIRK_RESET_RESUME },
 	{ USB_DEVICE(0x093a, 0x2510), .driver_info = USB_QUIRK_RESET_RESUME },
 	{ USB_DEVICE(0x093a, 0x2521), .driver_info = USB_QUIRK_RESET_RESUME },
+	{ USB_DEVICE(0x03f0, 0x2b4a), .driver_info = USB_QUIRK_RESET_RESUME },
 
 	/* Logitech Optical Mouse M90/M100 */
 	{ USB_DEVICE(0x046d, 0xc05a), .driver_info = USB_QUIRK_RESET_RESUME },
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/core/sysfs.c linux-libre-4.4.107-gnu/drivers/usb/core/sysfs.c
--- linux-libre-4.4-gnu/drivers/usb/core/sysfs.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/core/sysfs.c	2017-12-20 04:05:01.000000000 -0500
@@ -531,7 +531,7 @@ static ssize_t usb2_lpm_besl_store(struc
 }
 static DEVICE_ATTR_RW(usb2_lpm_besl);
 
-static ssize_t usb3_hardware_lpm_show(struct device *dev,
+static ssize_t usb3_hardware_lpm_u1_show(struct device *dev,
 				      struct device_attribute *attr, char *buf)
 {
 	struct usb_device *udev = to_usb_device(dev);
@@ -539,7 +539,7 @@ static ssize_t usb3_hardware_lpm_show(st
 
 	usb_lock_device(udev);
 
-	if (udev->usb3_lpm_enabled)
+	if (udev->usb3_lpm_u1_enabled)
 		p = "enabled";
 	else
 		p = "disabled";
@@ -548,7 +548,26 @@ static ssize_t usb3_hardware_lpm_show(st
 
 	return sprintf(buf, "%s\n", p);
 }
-static DEVICE_ATTR_RO(usb3_hardware_lpm);
+static DEVICE_ATTR_RO(usb3_hardware_lpm_u1);
+
+static ssize_t usb3_hardware_lpm_u2_show(struct device *dev,
+				      struct device_attribute *attr, char *buf)
+{
+	struct usb_device *udev = to_usb_device(dev);
+	const char *p;
+
+	usb_lock_device(udev);
+
+	if (udev->usb3_lpm_u2_enabled)
+		p = "enabled";
+	else
+		p = "disabled";
+
+	usb_unlock_device(udev);
+
+	return sprintf(buf, "%s\n", p);
+}
+static DEVICE_ATTR_RO(usb3_hardware_lpm_u2);
 
 static struct attribute *usb2_hardware_lpm_attr[] = {
 	&dev_attr_usb2_hardware_lpm.attr,
@@ -562,7 +581,8 @@ static struct attribute_group usb2_hardw
 };
 
 static struct attribute *usb3_hardware_lpm_attr[] = {
-	&dev_attr_usb3_hardware_lpm.attr,
+	&dev_attr_usb3_hardware_lpm_u1.attr,
+	&dev_attr_usb3_hardware_lpm_u2.attr,
 	NULL,
 };
 static struct attribute_group usb3_hardware_lpm_attr_group = {
@@ -592,7 +612,8 @@ static int add_power_attributes(struct d
 		if (udev->usb2_hw_lpm_capable == 1)
 			rc = sysfs_merge_group(&dev->kobj,
 					&usb2_hardware_lpm_attr_group);
-		if (udev->lpm_capable == 1)
+		if (udev->speed == USB_SPEED_SUPER &&
+				udev->lpm_capable == 1)
 			rc = sysfs_merge_group(&dev->kobj,
 					&usb3_hardware_lpm_attr_group);
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/core/urb.c linux-libre-4.4.107-gnu/drivers/usb/core/urb.c
--- linux-libre-4.4-gnu/drivers/usb/core/urb.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/core/urb.c	2017-12-20 04:05:01.000000000 -0500
@@ -335,7 +335,7 @@ int usb_submit_urb(struct urb *urb, gfp_
 	if (!urb || !urb->complete)
 		return -EINVAL;
 	if (urb->hcpriv) {
-		WARN_ONCE(1, "URB %p submitted while active\n", urb);
+		WARN_ONCE(1, "URB %pK submitted while active\n", urb);
 		return -EBUSY;
 	}
 
@@ -401,7 +401,7 @@ int usb_submit_urb(struct urb *urb, gfp_
 		/* SuperSpeed isoc endpoints have up to 16 bursts of up to
 		 * 3 packets each
 		 */
-		if (dev->speed == USB_SPEED_SUPER) {
+		if (dev->speed >= USB_SPEED_SUPER) {
 			int     burst = 1 + ep->ss_ep_comp.bMaxBurst;
 			int     mult = USB_SS_MULT(ep->ss_ep_comp.bmAttributes);
 			max *= burst;
@@ -499,6 +499,7 @@ int usb_submit_urb(struct urb *urb, gfp_
 		}
 		/* too big? */
 		switch (dev->speed) {
+		case USB_SPEED_SUPER_PLUS:
 		case USB_SPEED_SUPER:	/* units are 125us */
 			/* Handle up to 2^(16-1) microframes */
 			if (urb->interval > (1 << 15))
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/core/usb-acpi.c linux-libre-4.4.107-gnu/drivers/usb/core/usb-acpi.c
--- linux-libre-4.4-gnu/drivers/usb/core/usb-acpi.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/core/usb-acpi.c	2017-12-20 04:05:01.000000000 -0500
@@ -127,6 +127,22 @@ out:
  */
 #define USB_ACPI_LOCATION_VALID (1 << 31)
 
+static struct acpi_device *usb_acpi_find_port(struct acpi_device *parent,
+					      int raw)
+{
+	struct acpi_device *adev;
+
+	if (!parent)
+		return NULL;
+
+	list_for_each_entry(adev, &parent->children, node) {
+		if (acpi_device_adr(adev) == raw)
+			return adev;
+	}
+
+	return acpi_find_child_device(parent, raw, false);
+}
+
 static struct acpi_device *usb_acpi_find_companion(struct device *dev)
 {
 	struct usb_device *udev;
@@ -174,8 +190,10 @@ static struct acpi_device *usb_acpi_find
 			int raw;
 
 			raw = usb_hcd_find_raw_port_number(hcd, port1);
-			adev = acpi_find_child_device(ACPI_COMPANION(&udev->dev),
-					raw, false);
+
+			adev = usb_acpi_find_port(ACPI_COMPANION(&udev->dev),
+						  raw);
+
 			if (!adev)
 				return NULL;
 		} else {
@@ -186,7 +204,9 @@ static struct acpi_device *usb_acpi_find
 				return NULL;
 
 			acpi_bus_get_device(parent_handle, &adev);
-			adev = acpi_find_child_device(adev, port1, false);
+
+			adev = usb_acpi_find_port(adev, port1);
+
 			if (!adev)
 				return NULL;
 		}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/core/usb.h linux-libre-4.4.107-gnu/drivers/usb/core/usb.h
--- linux-libre-4.4-gnu/drivers/usb/core/usb.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/core/usb.h	2017-12-20 04:05:01.000000000 -0500
@@ -45,7 +45,7 @@ static inline unsigned usb_get_max_power
 		struct usb_host_config *c)
 {
 	/* SuperSpeed power is in 8 mA units; others are in 2 mA units */
-	unsigned mul = (udev->speed == USB_SPEED_SUPER ? 8 : 2);
+	unsigned mul = (udev->speed >= USB_SPEED_SUPER ? 8 : 2);
 
 	return c->desc.bMaxPower * mul;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/dwc2/core.h linux-libre-4.4.107-gnu/drivers/usb/dwc2/core.h
--- linux-libre-4.4-gnu/drivers/usb/dwc2/core.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/dwc2/core.h	2017-12-20 04:05:01.000000000 -0500
@@ -44,6 +44,17 @@
 #include <linux/usb/phy.h>
 #include "hw.h"
 
+#ifdef CONFIG_MIPS
+/*
+ * There are some MIPS machines that can run in either big-endian
+ * or little-endian mode and that use the dwc2 register without
+ * a byteswap in both ways.
+ * Unlike other architectures, MIPS apparently does not require a
+ * barrier before the __raw_writel() to synchronize with DMA but does
+ * require the barrier after the __raw_writel() to serialize a set of
+ * writes. This set of operations was added specifically for MIPS and
+ * should only be used there.
+ */
 static inline u32 dwc2_readl(const void __iomem *addr)
 {
 	u32 value = __raw_readl(addr);
@@ -70,6 +81,22 @@ static inline void dwc2_writel(u32 value
 	pr_info("INFO:: wrote %08x to %p\n", value, addr);
 #endif
 }
+#else
+/* Normal architectures just use readl/write */
+static inline u32 dwc2_readl(const void __iomem *addr)
+{
+	return readl(addr);
+}
+
+static inline void dwc2_writel(u32 value, void __iomem *addr)
+{
+	writel(value, addr);
+
+#ifdef DWC2_LOG_WRITES
+	pr_info("info:: wrote %08x to %p\n", value, addr);
+#endif
+}
+#endif
 
 /* Maximum number of Endpoints/HostChannels */
 #define MAX_EPS_CHANNELS	16
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/dwc3/core.h linux-libre-4.4.107-gnu/drivers/usb/dwc3/core.h
--- linux-libre-4.4-gnu/drivers/usb/dwc3/core.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/dwc3/core.h	2017-12-20 04:05:01.000000000 -0500
@@ -42,9 +42,7 @@
 #define DWC3_XHCI_RESOURCES_NUM	2
 
 #define DWC3_SCRATCHBUF_SIZE	4096	/* each buffer is assumed to be 4KiB */
-#define DWC3_EVENT_SIZE		4	/* bytes */
-#define DWC3_EVENT_MAX_NUM	64	/* 2 events/endpoint */
-#define DWC3_EVENT_BUFFERS_SIZE	(DWC3_EVENT_SIZE * DWC3_EVENT_MAX_NUM)
+#define DWC3_EVENT_BUFFERS_SIZE	4096
 #define DWC3_EVENT_TYPE_MASK	0xfe
 
 #define DWC3_EVENT_TYPE_DEV	0
@@ -853,7 +851,6 @@ struct dwc3 {
 	unsigned		pullups_connected:1;
 	unsigned		resize_fifos:1;
 	unsigned		setup_packet_pending:1;
-	unsigned		start_config_issued:1;
 	unsigned		three_stage_setup:1;
 	unsigned		usb3_lpm_capable:1;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/dwc3/dwc3-exynos.c linux-libre-4.4.107-gnu/drivers/usb/dwc3/dwc3-exynos.c
--- linux-libre-4.4-gnu/drivers/usb/dwc3/dwc3-exynos.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/dwc3/dwc3-exynos.c	2017-12-20 04:05:01.000000000 -0500
@@ -128,12 +128,6 @@ static int dwc3_exynos_probe(struct plat
 
 	platform_set_drvdata(pdev, exynos);
 
-	ret = dwc3_exynos_register_phys(exynos);
-	if (ret) {
-		dev_err(dev, "couldn't register PHYs\n");
-		return ret;
-	}
-
 	exynos->dev	= dev;
 
 	exynos->clk = devm_clk_get(dev, "usbdrd30");
@@ -154,7 +148,8 @@ static int dwc3_exynos_probe(struct plat
 		exynos->axius_clk = devm_clk_get(dev, "usbdrd30_axius_clk");
 		if (IS_ERR(exynos->axius_clk)) {
 			dev_err(dev, "no AXI UpScaler clk specified\n");
-			return -ENODEV;
+			ret = -ENODEV;
+			goto axius_clk_err;
 		}
 		clk_prepare_enable(exynos->axius_clk);
 	} else {
@@ -183,26 +178,36 @@ static int dwc3_exynos_probe(struct plat
 		goto err3;
 	}
 
+	ret = dwc3_exynos_register_phys(exynos);
+	if (ret) {
+		dev_err(dev, "couldn't register PHYs\n");
+		goto err4;
+	}
+
 	if (node) {
 		ret = of_platform_populate(node, NULL, NULL, dev);
 		if (ret) {
 			dev_err(dev, "failed to add dwc3 core\n");
-			goto err4;
+			goto err5;
 		}
 	} else {
 		dev_err(dev, "no device node, failed to add dwc3 core\n");
 		ret = -ENODEV;
-		goto err4;
+		goto err5;
 	}
 
 	return 0;
 
+err5:
+	platform_device_unregister(exynos->usb2_phy);
+	platform_device_unregister(exynos->usb3_phy);
 err4:
 	regulator_disable(exynos->vdd10);
 err3:
 	regulator_disable(exynos->vdd33);
 err2:
 	clk_disable_unprepare(exynos->axius_clk);
+axius_clk_err:
 	clk_disable_unprepare(exynos->susp_clk);
 	clk_disable_unprepare(exynos->clk);
 	return ret;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/dwc3/dwc3-pci.c linux-libre-4.4.107-gnu/drivers/usb/dwc3/dwc3-pci.c
--- linux-libre-4.4-gnu/drivers/usb/dwc3/dwc3-pci.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/dwc3/dwc3-pci.c	2017-12-20 04:05:01.000000000 -0500
@@ -36,6 +36,8 @@
 #define PCI_DEVICE_ID_INTEL_SPTH		0xa130
 #define PCI_DEVICE_ID_INTEL_BXT			0x0aaa
 #define PCI_DEVICE_ID_INTEL_APL			0x5aaa
+#define PCI_DEVICE_ID_INTEL_KBP			0xa2b0
+#define PCI_DEVICE_ID_INTEL_GLK			0x31aa
 
 static const struct acpi_gpio_params reset_gpios = { 0, 0, false };
 static const struct acpi_gpio_params cs_gpios = { 1, 0, false };
@@ -214,6 +216,8 @@ static const struct pci_device_id dwc3_p
 	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_SPTH), },
 	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_BXT), },
 	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_APL), },
+	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_KBP), },
+	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_GLK), },
 	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_NL_USB), },
 	{  }	/* Terminating Entry */
 };
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/dwc3/dwc3-st.c linux-libre-4.4.107-gnu/drivers/usb/dwc3/dwc3-st.c
--- linux-libre-4.4-gnu/drivers/usb/dwc3/dwc3-st.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/dwc3/dwc3-st.c	2017-12-20 04:05:01.000000000 -0500
@@ -224,7 +224,7 @@ static int st_dwc3_probe(struct platform
 
 	dwc3_data->syscfg_reg_off = res->start;
 
-	dev_vdbg(&pdev->dev, "glue-logic addr 0x%p, syscfg-reg offset 0x%x\n",
+	dev_vdbg(&pdev->dev, "glue-logic addr 0x%pK, syscfg-reg offset 0x%x\n",
 		 dwc3_data->glue_base, dwc3_data->syscfg_reg_off);
 
 	dwc3_data->rstc_pwrdn = devm_reset_control_get(dev, "powerdown");
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/dwc3/ep0.c linux-libre-4.4.107-gnu/drivers/usb/dwc3/ep0.c
--- linux-libre-4.4-gnu/drivers/usb/dwc3/ep0.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/dwc3/ep0.c	2017-12-20 04:05:01.000000000 -0500
@@ -55,20 +55,13 @@ static const char *dwc3_ep0_state_string
 	}
 }
 
-static int dwc3_ep0_start_trans(struct dwc3 *dwc, u8 epnum, dma_addr_t buf_dma,
-		u32 len, u32 type, bool chain)
+static void dwc3_ep0_prepare_one_trb(struct dwc3 *dwc, u8 epnum,
+		dma_addr_t buf_dma, u32 len, u32 type, bool chain)
 {
-	struct dwc3_gadget_ep_cmd_params params;
 	struct dwc3_trb			*trb;
 	struct dwc3_ep			*dep;
 
-	int				ret;
-
 	dep = dwc->eps[epnum];
-	if (dep->flags & DWC3_EP_BUSY) {
-		dwc3_trace(trace_dwc3_ep0, "%s still busy", dep->name);
-		return 0;
-	}
 
 	trb = &dwc->ep0_trb[dep->free_slot];
 
@@ -89,15 +82,25 @@ static int dwc3_ep0_start_trans(struct d
 		trb->ctrl |= (DWC3_TRB_CTRL_IOC
 				| DWC3_TRB_CTRL_LST);
 
-	if (chain)
+	trace_dwc3_prepare_trb(dep, trb);
+}
+
+static int dwc3_ep0_start_trans(struct dwc3 *dwc, u8 epnum)
+{
+	struct dwc3_gadget_ep_cmd_params params;
+	struct dwc3_ep			*dep;
+	int				ret;
+
+	dep = dwc->eps[epnum];
+	if (dep->flags & DWC3_EP_BUSY) {
+		dwc3_trace(trace_dwc3_ep0, "%s still busy", dep->name);
 		return 0;
+	}
 
 	memset(&params, 0, sizeof(params));
 	params.param0 = upper_32_bits(dwc->ep0_trb_addr);
 	params.param1 = lower_32_bits(dwc->ep0_trb_addr);
 
-	trace_dwc3_prepare_trb(dep, trb);
-
 	ret = dwc3_send_gadget_ep_cmd(dwc, dep->number,
 			DWC3_DEPCMD_STARTTRANSFER, &params);
 	if (ret < 0) {
@@ -311,8 +314,9 @@ void dwc3_ep0_out_start(struct dwc3 *dwc
 {
 	int				ret;
 
-	ret = dwc3_ep0_start_trans(dwc, 0, dwc->ctrl_req_addr, 8,
+	dwc3_ep0_prepare_one_trb(dwc, 0, dwc->ctrl_req_addr, 8,
 			DWC3_TRBCTL_CONTROL_SETUP, false);
+	ret = dwc3_ep0_start_trans(dwc, 0);
 	WARN_ON(ret < 0);
 }
 
@@ -555,7 +559,6 @@ static int dwc3_ep0_set_config(struct dw
 	int ret;
 	u32 reg;
 
-	dwc->start_config_issued = false;
 	cfg = le16_to_cpu(ctrl->wValue);
 
 	switch (state) {
@@ -737,10 +740,6 @@ static int dwc3_ep0_std_request(struct d
 		dwc3_trace(trace_dwc3_ep0, "USB_REQ_SET_ISOCH_DELAY");
 		ret = dwc3_ep0_set_isoch_delay(dwc, ctrl);
 		break;
-	case USB_REQ_SET_INTERFACE:
-		dwc3_trace(trace_dwc3_ep0, "USB_REQ_SET_INTERFACE");
-		dwc->start_config_issued = false;
-		/* Fall through */
 	default:
 		dwc3_trace(trace_dwc3_ep0, "Forwarding to gadget driver");
 		ret = dwc3_ep0_delegate_req(dwc, ctrl);
@@ -876,9 +875,9 @@ static void dwc3_ep0_complete_data(struc
 
 			dwc->ep0_next_event = DWC3_EP0_COMPLETE;
 
-			ret = dwc3_ep0_start_trans(dwc, epnum,
-					dwc->ctrl_req_addr, 0,
-					DWC3_TRBCTL_CONTROL_DATA, false);
+			dwc3_ep0_prepare_one_trb(dwc, epnum, dwc->ctrl_req_addr,
+					0, DWC3_TRBCTL_CONTROL_DATA, false);
+			ret = dwc3_ep0_start_trans(dwc, epnum);
 			WARN_ON(ret < 0);
 		}
 	}
@@ -960,9 +959,10 @@ static void __dwc3_ep0_do_control_data(s
 	req->direction = !!dep->number;
 
 	if (req->request.length == 0) {
-		ret = dwc3_ep0_start_trans(dwc, dep->number,
+		dwc3_ep0_prepare_one_trb(dwc, dep->number,
 				dwc->ctrl_req_addr, 0,
 				DWC3_TRBCTL_CONTROL_DATA, false);
+		ret = dwc3_ep0_start_trans(dwc, dep->number);
 	} else if (!IS_ALIGNED(req->request.length, dep->endpoint.maxpacket)
 			&& (dep->number == 0)) {
 		u32	transfer_size = 0;
@@ -980,7 +980,7 @@ static void __dwc3_ep0_do_control_data(s
 		if (req->request.length > DWC3_EP0_BOUNCE_SIZE) {
 			transfer_size = ALIGN(req->request.length - maxpacket,
 					      maxpacket);
-			ret = dwc3_ep0_start_trans(dwc, dep->number,
+			dwc3_ep0_prepare_one_trb(dwc, dep->number,
 						   req->request.dma,
 						   transfer_size,
 						   DWC3_TRBCTL_CONTROL_DATA,
@@ -992,9 +992,10 @@ static void __dwc3_ep0_do_control_data(s
 
 		dwc->ep0_bounced = true;
 
-		ret = dwc3_ep0_start_trans(dwc, dep->number,
+		dwc3_ep0_prepare_one_trb(dwc, dep->number,
 				dwc->ep0_bounce_addr, transfer_size,
 				DWC3_TRBCTL_CONTROL_DATA, false);
+		ret = dwc3_ep0_start_trans(dwc, dep->number);
 	} else {
 		ret = usb_gadget_map_request(&dwc->gadget, &req->request,
 				dep->number);
@@ -1003,9 +1004,10 @@ static void __dwc3_ep0_do_control_data(s
 			return;
 		}
 
-		ret = dwc3_ep0_start_trans(dwc, dep->number, req->request.dma,
+		dwc3_ep0_prepare_one_trb(dwc, dep->number, req->request.dma,
 				req->request.length, DWC3_TRBCTL_CONTROL_DATA,
 				false);
+		ret = dwc3_ep0_start_trans(dwc, dep->number);
 	}
 
 	WARN_ON(ret < 0);
@@ -1019,8 +1021,9 @@ static int dwc3_ep0_start_control_status
 	type = dwc->three_stage_setup ? DWC3_TRBCTL_CONTROL_STATUS3
 		: DWC3_TRBCTL_CONTROL_STATUS2;
 
-	return dwc3_ep0_start_trans(dwc, dep->number,
+	dwc3_ep0_prepare_one_trb(dwc, dep->number,
 			dwc->ctrl_req_addr, 0, type, false);
+	return dwc3_ep0_start_trans(dwc, dep->number);
 }
 
 static void __dwc3_ep0_do_control_status(struct dwc3 *dwc, struct dwc3_ep *dep)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/dwc3/gadget.c linux-libre-4.4.107-gnu/drivers/usb/dwc3/gadget.c
--- linux-libre-4.4-gnu/drivers/usb/dwc3/gadget.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/dwc3/gadget.c	2017-12-20 04:05:01.000000000 -0500
@@ -235,6 +235,7 @@ void dwc3_gadget_giveback(struct dwc3_ep
 		int status)
 {
 	struct dwc3			*dwc = dep->dwc;
+	unsigned int			unmap_after_complete = false;
 	int				i;
 
 	if (req->queued) {
@@ -259,11 +260,19 @@ void dwc3_gadget_giveback(struct dwc3_ep
 	if (req->request.status == -EINPROGRESS)
 		req->request.status = status;
 
-	if (dwc->ep0_bounced && dep->number == 0)
+	/*
+	 * NOTICE we don't want to unmap before calling ->complete() if we're
+	 * dealing with a bounced ep0 request. If we unmap it here, we would end
+	 * up overwritting the contents of req->buf and this could confuse the
+	 * gadget driver.
+	 */
+	if (dwc->ep0_bounced && dep->number <= 1) {
 		dwc->ep0_bounced = false;
-	else
-		usb_gadget_unmap_request(&dwc->gadget, &req->request,
-				req->direction);
+		unmap_after_complete = true;
+	} else {
+		usb_gadget_unmap_request(&dwc->gadget,
+				&req->request, req->direction);
+	}
 
 	dev_dbg(dwc->dev, "request %p from %s completed %d/%d ===> %d\n",
 			req, dep->name, req->request.actual,
@@ -273,6 +282,10 @@ void dwc3_gadget_giveback(struct dwc3_ep
 	spin_unlock(&dwc->lock);
 	usb_gadget_giveback_request(&dep->endpoint, &req->request);
 	spin_lock(&dwc->lock);
+
+	if (unmap_after_complete)
+		usb_gadget_unmap_request(&dwc->gadget,
+				&req->request, req->direction);
 }
 
 int dwc3_send_gadget_generic_command(struct dwc3 *dwc, unsigned cmd, u32 param)
@@ -388,24 +401,66 @@ static void dwc3_free_trb_pool(struct dw
 	dep->trb_pool_dma = 0;
 }
 
+static int dwc3_gadget_set_xfer_resource(struct dwc3 *dwc, struct dwc3_ep *dep);
+
+/**
+ * dwc3_gadget_start_config - Configure EP resources
+ * @dwc: pointer to our controller context structure
+ * @dep: endpoint that is being enabled
+ *
+ * The assignment of transfer resources cannot perfectly follow the
+ * data book due to the fact that the controller driver does not have
+ * all knowledge of the configuration in advance. It is given this
+ * information piecemeal by the composite gadget framework after every
+ * SET_CONFIGURATION and SET_INTERFACE. Trying to follow the databook
+ * programming model in this scenario can cause errors. For two
+ * reasons:
+ *
+ * 1) The databook says to do DEPSTARTCFG for every SET_CONFIGURATION
+ * and SET_INTERFACE (8.1.5). This is incorrect in the scenario of
+ * multiple interfaces.
+ *
+ * 2) The databook does not mention doing more DEPXFERCFG for new
+ * endpoint on alt setting (8.1.6).
+ *
+ * The following simplified method is used instead:
+ *
+ * All hardware endpoints can be assigned a transfer resource and this
+ * setting will stay persistent until either a core reset or
+ * hibernation. So whenever we do a DEPSTARTCFG(0) we can go ahead and
+ * do DEPXFERCFG for every hardware endpoint as well. We are
+ * guaranteed that there are as many transfer resources as endpoints.
+ *
+ * This function is called for each endpoint when it is being enabled
+ * but is triggered only when called for EP0-out, which always happens
+ * first, and which should only happen in one of the above conditions.
+ */
 static int dwc3_gadget_start_config(struct dwc3 *dwc, struct dwc3_ep *dep)
 {
 	struct dwc3_gadget_ep_cmd_params params;
 	u32			cmd;
+	int			i;
+	int			ret;
+
+	if (dep->number)
+		return 0;
 
 	memset(&params, 0x00, sizeof(params));
+	cmd = DWC3_DEPCMD_DEPSTARTCFG;
 
-	if (dep->number != 1) {
-		cmd = DWC3_DEPCMD_DEPSTARTCFG;
-		/* XferRscIdx == 0 for ep0 and 2 for the remaining */
-		if (dep->number > 1) {
-			if (dwc->start_config_issued)
-				return 0;
-			dwc->start_config_issued = true;
-			cmd |= DWC3_DEPCMD_PARAM(2);
-		}
+	ret = dwc3_send_gadget_ep_cmd(dwc, 0, cmd, &params);
+	if (ret)
+		return ret;
 
-		return dwc3_send_gadget_ep_cmd(dwc, 0, cmd, &params);
+	for (i = 0; i < DWC3_ENDPOINTS_NUM; i++) {
+		struct dwc3_ep *dep = dwc->eps[i];
+
+		if (!dep)
+			continue;
+
+		ret = dwc3_gadget_set_xfer_resource(dwc, dep);
+		if (ret)
+			return ret;
 	}
 
 	return 0;
@@ -519,10 +574,6 @@ static int __dwc3_gadget_ep_enable(struc
 		struct dwc3_trb	*trb_st_hw;
 		struct dwc3_trb	*trb_link;
 
-		ret = dwc3_gadget_set_xfer_resource(dwc, dep);
-		if (ret)
-			return ret;
-
 		dep->endpoint.desc = desc;
 		dep->comp_desc = comp_desc;
 		dep->type = usb_endpoint_type(desc);
@@ -1168,7 +1219,7 @@ static int dwc3_gadget_ep_queue(struct u
 		goto out;
 	}
 
-	if (WARN(req->dep != dep, "request %p belongs to '%s'\n",
+	if (WARN(req->dep != dep, "request %pK belongs to '%s'\n",
 				request, req->dep->name)) {
 		ret = -EINVAL;
 		goto out;
@@ -1213,7 +1264,7 @@ static int dwc3_gadget_ep_dequeue(struct
 			dwc3_stop_active_transfer(dwc, dep->number, true);
 			goto out1;
 		}
-		dev_err(dwc->dev, "request %p was not queued to %s\n",
+		dev_err(dwc->dev, "request %pK was not queued to %s\n",
 				request, ep->name);
 		ret = -EINVAL;
 		goto out0;
@@ -1604,8 +1655,6 @@ static int dwc3_gadget_start(struct usb_
 	}
 	dwc3_writel(dwc->regs, DWC3_DCFG, reg);
 
-	dwc->start_config_issued = false;
-
 	/* Start with SuperSpeed Default */
 	dwc3_gadget_ep0_desc.wMaxPacketSize = cpu_to_le16(512);
 
@@ -1817,7 +1866,7 @@ static int __dwc3_cleanup_done_trbs(stru
 		 * would help. Lets hope that if this occurs, someone
 		 * fixes the root cause instead of looking away :)
 		 */
-		dev_err(dwc->dev, "%s's TRB (%p) still owned by HW\n",
+		dev_err(dwc->dev, "%s's TRB (%pK) still owned by HW\n",
 				dep->name, trb);
 	count = trb->size & DWC3_TRB_SIZE_MASK;
 
@@ -1856,14 +1905,6 @@ static int __dwc3_cleanup_done_trbs(stru
 			s_pkt = 1;
 	}
 
-	/*
-	 * We assume here we will always receive the entire data block
-	 * which we should receive. Meaning, if we program RX to
-	 * receive 4K but we receive only 2K, we assume that's all we
-	 * should receive and we simply bounce the request back to the
-	 * gadget driver for further processing.
-	 */
-	req->request.actual += req->request.length - count;
 	if (s_pkt)
 		return 1;
 	if ((event->status & DEPEVT_STATUS_LST) &&
@@ -1883,6 +1924,7 @@ static int dwc3_cleanup_done_reqs(struct
 	struct dwc3_trb		*trb;
 	unsigned int		slot;
 	unsigned int		i;
+	int			count = 0;
 	int			ret;
 
 	do {
@@ -1899,6 +1941,8 @@ static int dwc3_cleanup_done_reqs(struct
 				slot++;
 			slot %= DWC3_TRB_NUM;
 			trb = &dep->trb_pool[slot];
+			count += trb->size & DWC3_TRB_SIZE_MASK;
+
 
 			ret = __dwc3_cleanup_done_trbs(dwc, dep, req, trb,
 					event, status);
@@ -1906,6 +1950,14 @@ static int dwc3_cleanup_done_reqs(struct
 				break;
 		} while (++i < req->request.num_mapped_sgs);
 
+		/*
+		 * We assume here we will always receive the entire data block
+		 * which we should receive. Meaning, if we program RX to
+		 * receive 4K but we receive only 2K, we assume that's all we
+		 * should receive and we simply bounce the request back to the
+		 * gadget driver for further processing.
+		 */
+		req->request.actual += req->request.length - count;
 		dwc3_gadget_giveback(dep, req, status);
 
 		if (ret)
@@ -1929,6 +1981,10 @@ static int dwc3_cleanup_done_reqs(struct
 		return 1;
 	}
 
+	if (usb_endpoint_xfer_isoc(dep->endpoint.desc))
+		if ((event->status & DEPEVT_STATUS_IOC) &&
+				(trb->ctrl & DWC3_TRB_CTRL_IOC))
+			return 0;
 	return 1;
 }
 
@@ -2202,7 +2258,6 @@ static void dwc3_gadget_disconnect_inter
 	dwc3_writel(dwc->regs, DWC3_DCTL, reg);
 
 	dwc3_disconnect_gadget(dwc);
-	dwc->start_config_issued = false;
 
 	dwc->gadget.speed = USB_SPEED_UNKNOWN;
 	dwc->setup_packet_pending = false;
@@ -2253,7 +2308,6 @@ static void dwc3_gadget_reset_interrupt(
 
 	dwc3_stop_active_transfers(dwc);
 	dwc3_clear_stall_all_ep(dwc);
-	dwc->start_config_issued = false;
 
 	/* Reset device address to zero */
 	reg = dwc3_readl(dwc->regs, DWC3_DCFG);
@@ -2804,7 +2858,7 @@ err3:
 	kfree(dwc->setup_buf);
 
 err2:
-	dma_free_coherent(dwc->dev, sizeof(*dwc->ep0_trb),
+	dma_free_coherent(dwc->dev, sizeof(*dwc->ep0_trb) * 2,
 			dwc->ep0_trb, dwc->ep0_trb_addr);
 
 err1:
@@ -2828,7 +2882,7 @@ void dwc3_gadget_exit(struct dwc3 *dwc)
 
 	kfree(dwc->setup_buf);
 
-	dma_free_coherent(dwc->dev, sizeof(*dwc->ep0_trb),
+	dma_free_coherent(dwc->dev, sizeof(*dwc->ep0_trb) * 2,
 			dwc->ep0_trb, dwc->ep0_trb_addr);
 
 	dma_free_coherent(dwc->dev, sizeof(*dwc->ctrl_req),
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/dwc3/gadget.h linux-libre-4.4.107-gnu/drivers/usb/dwc3/gadget.h
--- linux-libre-4.4-gnu/drivers/usb/dwc3/gadget.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/dwc3/gadget.h	2017-12-20 04:05:01.000000000 -0500
@@ -28,23 +28,23 @@ struct dwc3;
 #define gadget_to_dwc(g)	(container_of(g, struct dwc3, gadget))
 
 /* DEPCFG parameter 1 */
-#define DWC3_DEPCFG_INT_NUM(n)		((n) << 0)
+#define DWC3_DEPCFG_INT_NUM(n)		(((n) & 0x1f) << 0)
 #define DWC3_DEPCFG_XFER_COMPLETE_EN	(1 << 8)
 #define DWC3_DEPCFG_XFER_IN_PROGRESS_EN	(1 << 9)
 #define DWC3_DEPCFG_XFER_NOT_READY_EN	(1 << 10)
 #define DWC3_DEPCFG_FIFO_ERROR_EN	(1 << 11)
 #define DWC3_DEPCFG_STREAM_EVENT_EN	(1 << 13)
-#define DWC3_DEPCFG_BINTERVAL_M1(n)	((n) << 16)
+#define DWC3_DEPCFG_BINTERVAL_M1(n)	(((n) & 0xff) << 16)
 #define DWC3_DEPCFG_STREAM_CAPABLE	(1 << 24)
-#define DWC3_DEPCFG_EP_NUMBER(n)	((n) << 25)
+#define DWC3_DEPCFG_EP_NUMBER(n)	(((n) & 0x1f) << 25)
 #define DWC3_DEPCFG_BULK_BASED		(1 << 30)
 #define DWC3_DEPCFG_FIFO_BASED		(1 << 31)
 
 /* DEPCFG parameter 0 */
-#define DWC3_DEPCFG_EP_TYPE(n)		((n) << 1)
-#define DWC3_DEPCFG_MAX_PACKET_SIZE(n)	((n) << 3)
-#define DWC3_DEPCFG_FIFO_NUMBER(n)	((n) << 17)
-#define DWC3_DEPCFG_BURST_SIZE(n)	((n) << 22)
+#define DWC3_DEPCFG_EP_TYPE(n)		(((n) & 0x3) << 1)
+#define DWC3_DEPCFG_MAX_PACKET_SIZE(n)	(((n) & 0x7ff) << 3)
+#define DWC3_DEPCFG_FIFO_NUMBER(n)	(((n) & 0x1f) << 17)
+#define DWC3_DEPCFG_BURST_SIZE(n)	(((n) & 0xf) << 22)
 #define DWC3_DEPCFG_DATA_SEQ_NUM(n)	((n) << 26)
 /* This applies for core versions earlier than 1.94a */
 #define DWC3_DEPCFG_IGN_SEQ_NUM		(1 << 31)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/gadget/composite.c linux-libre-4.4.107-gnu/drivers/usb/gadget/composite.c
--- linux-libre-4.4-gnu/drivers/usb/gadget/composite.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/gadget/composite.c	2017-12-20 04:05:01.000000000 -0500
@@ -144,11 +144,16 @@ int config_ep_by_speed(struct usb_gadget
 
 ep_found:
 	/* commit results */
-	_ep->maxpacket = usb_endpoint_maxp(chosen_desc);
+	_ep->maxpacket = usb_endpoint_maxp(chosen_desc) & 0x7ff;
 	_ep->desc = chosen_desc;
 	_ep->comp_desc = NULL;
 	_ep->maxburst = 0;
-	_ep->mult = 0;
+	_ep->mult = 1;
+
+	if (g->speed == USB_SPEED_HIGH && (usb_endpoint_xfer_isoc(_ep->desc) ||
+				usb_endpoint_xfer_int(_ep->desc)))
+		_ep->mult = ((usb_endpoint_maxp(_ep->desc) & 0x1800) >> 11) + 1;
+
 	if (!want_comp_desc)
 		return 0;
 
@@ -165,7 +170,7 @@ ep_found:
 		switch (usb_endpoint_type(_ep->desc)) {
 		case USB_ENDPOINT_XFER_ISOC:
 			/* mult: bits 1:0 of bmAttributes */
-			_ep->mult = comp_desc->bmAttributes & 0x3;
+			_ep->mult = (comp_desc->bmAttributes & 0x3) + 1;
 		case USB_ENDPOINT_XFER_BULK:
 		case USB_ENDPOINT_XFER_INT:
 			_ep->maxburst = comp_desc->bMaxBurst + 1;
@@ -1596,9 +1601,7 @@ composite_setup(struct usb_gadget *gadge
 		value = min(w_length, (u16) 1);
 		break;
 
-	/* function drivers must handle get/set altsetting; if there's
-	 * no get() method, we know only altsetting zero works.
-	 */
+	/* function drivers must handle get/set altsetting */
 	case USB_REQ_SET_INTERFACE:
 		if (ctrl->bRequestType != USB_RECIP_INTERFACE)
 			goto unknown;
@@ -1607,7 +1610,13 @@ composite_setup(struct usb_gadget *gadge
 		f = cdev->config->interface[intf];
 		if (!f)
 			break;
-		if (w_value && !f->set_alt)
+
+		/*
+		 * If there's no get_alt() method, we know only altsetting zero
+		 * works. There is no need to check if set_alt() is not NULL
+		 * as we check this in usb_add_function().
+		 */
+		if (w_value && !f->get_alt)
 			break;
 		value = f->set_alt(f, w_index, w_value);
 		if (value == USB_GADGET_DELAYED_STATUS) {
@@ -1896,6 +1905,8 @@ static DEVICE_ATTR_RO(suspended);
 static void __composite_unbind(struct usb_gadget *gadget, bool unbind_driver)
 {
 	struct usb_composite_dev	*cdev = get_gadget_data(gadget);
+	struct usb_gadget_strings	*gstr = cdev->driver->strings[0];
+	struct usb_string		*dev_str = gstr->strings;
 
 	/* composite_disconnect() must already have been called
 	 * by the underlying peripheral controller driver!
@@ -1915,6 +1926,9 @@ static void __composite_unbind(struct us
 
 	composite_dev_cleanup(cdev);
 
+	if (dev_str[USB_GADGET_MANUFACTURER_IDX].s == cdev->def_manufacturer)
+		dev_str[USB_GADGET_MANUFACTURER_IDX].s = "";
+
 	kfree(cdev->def_manufacturer);
 	kfree(cdev);
 	set_gadget_data(gadget, NULL);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/gadget/configfs.c linux-libre-4.4.107-gnu/drivers/usb/gadget/configfs.c
--- linux-libre-4.4-gnu/drivers/usb/gadget/configfs.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/gadget/configfs.c	2017-12-20 04:05:01.000000000 -0500
@@ -270,6 +270,7 @@ static ssize_t gadget_dev_desc_UDC_store
 		ret = unregister_gadget(gi);
 		if (ret)
 			goto err;
+		kfree(name);
 	} else {
 		if (gi->udc_name) {
 			ret = -EBUSY;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/gadget/function/f_acm.c linux-libre-4.4.107-gnu/drivers/usb/gadget/function/f_acm.c
--- linux-libre-4.4-gnu/drivers/usb/gadget/function/f_acm.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/gadget/function/f_acm.c	2017-12-20 04:05:01.000000000 -0500
@@ -535,13 +535,15 @@ static int acm_notify_serial_state(struc
 {
 	struct usb_composite_dev *cdev = acm->port.func.config->cdev;
 	int			status;
+	__le16			serial_state;
 
 	spin_lock(&acm->lock);
 	if (acm->notify_req) {
 		dev_dbg(&cdev->gadget->dev, "acm ttyGS%d serial state %04x\n",
 			acm->port_num, acm->serial_state);
+		serial_state = cpu_to_le16(acm->serial_state);
 		status = acm_cdc_notify(acm, USB_CDC_NOTIFY_SERIAL_STATE,
-				0, &acm->serial_state, sizeof(acm->serial_state));
+				0, &serial_state, sizeof(acm->serial_state));
 	} else {
 		acm->pending = true;
 		status = 0;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/gadget/function/f_fs.c linux-libre-4.4.107-gnu/drivers/usb/gadget/function/f_fs.c
--- linux-libre-4.4-gnu/drivers/usb/gadget/function/f_fs.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/gadget/function/f_fs.c	2017-12-20 04:05:01.000000000 -0500
@@ -646,24 +646,23 @@ static void ffs_user_copy_worker(struct
 						   work);
 	int ret = io_data->req->status ? io_data->req->status :
 					 io_data->req->actual;
+	bool kiocb_has_eventfd = io_data->kiocb->ki_flags & IOCB_EVENTFD;
 
 	if (io_data->read && ret > 0) {
 		use_mm(io_data->mm);
 		ret = copy_to_iter(io_data->buf, ret, &io_data->data);
-		if (iov_iter_count(&io_data->data))
+		if (ret != io_data->req->actual && iov_iter_count(&io_data->data))
 			ret = -EFAULT;
 		unuse_mm(io_data->mm);
 	}
 
 	io_data->kiocb->ki_complete(io_data->kiocb, ret, ret);
 
-	if (io_data->ffs->ffs_eventfd &&
-	    !(io_data->kiocb->ki_flags & IOCB_EVENTFD))
+	if (io_data->ffs->ffs_eventfd && !kiocb_has_eventfd)
 		eventfd_signal(io_data->ffs->ffs_eventfd, 1);
 
 	usb_ep_free_request(io_data->ep, io_data->req);
 
-	io_data->kiocb->private = NULL;
 	if (io_data->read)
 		kfree(io_data->to_free);
 	kfree(io_data->buf);
@@ -792,7 +791,7 @@ static ssize_t ffs_epfile_io(struct file
 		}
 
 		if (io_data->aio) {
-			req = usb_ep_alloc_request(ep->ep, GFP_KERNEL);
+			req = usb_ep_alloc_request(ep->ep, GFP_ATOMIC);
 			if (unlikely(!req))
 				goto error_lock;
 
@@ -1644,11 +1643,14 @@ static int ffs_func_eps_enable(struct ff
 	spin_lock_irqsave(&func->ffs->eps_lock, flags);
 	do {
 		struct usb_endpoint_descriptor *ds;
+		struct usb_ss_ep_comp_descriptor *comp_desc = NULL;
+		int needs_comp_desc = false;
 		int desc_idx;
 
-		if (ffs->gadget->speed == USB_SPEED_SUPER)
+		if (ffs->gadget->speed == USB_SPEED_SUPER) {
 			desc_idx = 2;
-		else if (ffs->gadget->speed == USB_SPEED_HIGH)
+			needs_comp_desc = true;
+		} else if (ffs->gadget->speed == USB_SPEED_HIGH)
 			desc_idx = 1;
 		else
 			desc_idx = 0;
@@ -1665,6 +1667,14 @@ static int ffs_func_eps_enable(struct ff
 
 		ep->ep->driver_data = ep;
 		ep->ep->desc = ds;
+
+		if (needs_comp_desc) {
+			comp_desc = (struct usb_ss_ep_comp_descriptor *)(ds +
+					USB_DT_ENDPOINT_SIZE);
+			ep->ep->maxburst = comp_desc->bMaxBurst + 1;
+			ep->ep->comp_desc = comp_desc;
+		}
+
 		ret = usb_ep_enable(ep->ep);
 		if (likely(!ret)) {
 			epfile->ep = ep;
@@ -2080,6 +2090,8 @@ static int __ffs_data_do_os_desc(enum ff
 		if (len < sizeof(*d) || h->interface >= ffs->interfaces_count)
 			return -EINVAL;
 		length = le32_to_cpu(d->dwSize);
+		if (len < length)
+			return -EINVAL;
 		type = le32_to_cpu(d->dwPropertyDataType);
 		if (type < USB_EXT_PROP_UNICODE ||
 		    type > USB_EXT_PROP_UNICODE_MULTI) {
@@ -2088,6 +2100,11 @@ static int __ffs_data_do_os_desc(enum ff
 			return -EINVAL;
 		}
 		pnl = le16_to_cpu(d->wPropertyNameLength);
+		if (length < 14 + pnl) {
+			pr_vdebug("invalid os descriptor length: %d pnl:%d (descriptor %d)\n",
+				  length, pnl, type);
+			return -EINVAL;
+		}
 		pdl = le32_to_cpu(*(u32 *)((u8 *)data + 10 + pnl));
 		if (length != 14 + pnl + pdl) {
 			pr_vdebug("invalid os descriptor length: %d pnl:%d pdl:%d (descriptor %d)\n",
@@ -2172,6 +2189,9 @@ static int __ffs_data_got_descs(struct f
 		}
 	}
 	if (flags & (1 << i)) {
+		if (len < 4) {
+			goto error;
+		}
 		os_descs_count = get_unaligned_le32(data);
 		data += 4;
 		len -= 4;
@@ -2244,7 +2264,8 @@ static int __ffs_data_got_strings(struct
 
 	ENTER();
 
-	if (unlikely(get_unaligned_le32(data) != FUNCTIONFS_STRINGS_MAGIC ||
+	if (unlikely(len < 16 ||
+		     get_unaligned_le32(data) != FUNCTIONFS_STRINGS_MAGIC ||
 		     get_unaligned_le32(data + 4) != len))
 		goto error;
 	str_count  = get_unaligned_le32(data + 8);
@@ -2741,6 +2762,7 @@ static int _ffs_func_bind(struct usb_con
 		func->ffs->ss_descs_count;
 
 	int fs_len, hs_len, ss_len, ret, i;
+	struct ffs_ep *eps_ptr;
 
 	/* Make it a single chunk, less management later on */
 	vla_group(d);
@@ -2789,12 +2811,9 @@ static int _ffs_func_bind(struct usb_con
 	       ffs->raw_descs_length);
 
 	memset(vla_ptr(vlabuf, d, inums), 0xff, d_inums__sz);
-	for (ret = ffs->eps_count; ret; --ret) {
-		struct ffs_ep *ptr;
-
-		ptr = vla_ptr(vlabuf, d, eps);
-		ptr[ret].num = -1;
-	}
+	eps_ptr = vla_ptr(vlabuf, d, eps);
+	for (i = 0; i < ffs->eps_count; i++)
+		eps_ptr[i].num = -1;
 
 	/* Save pointers
 	 * d_eps == vlabuf, func->eps used to kfree vlabuf later
@@ -3444,6 +3463,7 @@ static void ffs_closed(struct ffs_data *
 {
 	struct ffs_dev *ffs_obj;
 	struct f_fs_opts *opts;
+	struct config_item *ci;
 
 	ENTER();
 	ffs_dev_lock();
@@ -3467,8 +3487,11 @@ static void ffs_closed(struct ffs_data *
 	    || !atomic_read(&opts->func_inst.group.cg_item.ci_kref.refcount))
 		goto done;
 
-	unregister_gadget_item(ffs_obj->opts->
-			       func_inst.group.cg_item.ci_parent->ci_parent);
+	ci = opts->func_inst.group.cg_item.ci_parent->ci_parent;
+	ffs_dev_unlock();
+
+	unregister_gadget_item(ci);
+	return;
 done:
 	ffs_dev_unlock();
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/gadget/function/f_hid.c linux-libre-4.4.107-gnu/drivers/usb/gadget/function/f_hid.c
--- linux-libre-4.4-gnu/drivers/usb/gadget/function/f_hid.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/gadget/function/f_hid.c	2017-12-20 04:05:01.000000000 -0500
@@ -539,7 +539,7 @@ static int hidg_set_alt(struct usb_funct
 		}
 		status = usb_ep_enable(hidg->out_ep);
 		if (status < 0) {
-			ERROR(cdev, "Enable IN endpoint FAILED!\n");
+			ERROR(cdev, "Enable OUT endpoint FAILED!\n");
 			goto fail;
 		}
 		hidg->out_ep->driver_data = hidg;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/gadget/function/f_mass_storage.c linux-libre-4.4.107-gnu/drivers/usb/gadget/function/f_mass_storage.c
--- linux-libre-4.4-gnu/drivers/usb/gadget/function/f_mass_storage.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/gadget/function/f_mass_storage.c	2017-12-20 04:05:01.000000000 -0500
@@ -306,8 +306,6 @@ struct fsg_common {
 	struct completion	thread_notifier;
 	struct task_struct	*thread_task;
 
-	/* Callback functions. */
-	const struct fsg_operations	*ops;
 	/* Gadget's private data. */
 	void			*private_data;
 
@@ -399,7 +397,11 @@ static int fsg_set_halt(struct fsg_dev *
 /* Caller must hold fsg->lock */
 static void wakeup_thread(struct fsg_common *common)
 {
-	smp_wmb();	/* ensure the write of bh->state is complete */
+	/*
+	 * Ensure the reading of thread_wakeup_needed
+	 * and the writing of bh->state are completed
+	 */
+	smp_mb();
 	/* Tell the main thread that something has happened */
 	common->thread_wakeup_needed = 1;
 	if (common->thread_task)
@@ -630,7 +632,12 @@ static int sleep_thread(struct fsg_commo
 	}
 	__set_current_state(TASK_RUNNING);
 	common->thread_wakeup_needed = 0;
-	smp_rmb();	/* ensure the latest bh->state is visible */
+
+	/*
+	 * Ensure the writing of thread_wakeup_needed
+	 * and the reading of bh->state are completed
+	 */
+	smp_mb();
 	return rc;
 }
 
@@ -2495,6 +2502,7 @@ static void handle_exception(struct fsg_
 static int fsg_main_thread(void *common_)
 {
 	struct fsg_common	*common = common_;
+	int			i;
 
 	/*
 	 * Allow the thread to be killed by a signal, but set the signal mask
@@ -2556,21 +2564,16 @@ static int fsg_main_thread(void *common_
 	common->thread_task = NULL;
 	spin_unlock_irq(&common->lock);
 
-	if (!common->ops || !common->ops->thread_exits
-	 || common->ops->thread_exits(common) < 0) {
-		int i;
+	/* Eject media from all LUNs */
 
-		down_write(&common->filesem);
-		for (i = 0; i < ARRAY_SIZE(common->luns); --i) {
-			struct fsg_lun *curlun = common->luns[i];
-			if (!curlun || !fsg_lun_is_open(curlun))
-				continue;
+	down_write(&common->filesem);
+	for (i = 0; i < ARRAY_SIZE(common->luns); i++) {
+		struct fsg_lun *curlun = common->luns[i];
 
+		if (curlun && fsg_lun_is_open(curlun))
 			fsg_lun_close(curlun);
-			curlun->unit_attention_data = SS_MEDIUM_NOT_PRESENT;
-		}
-		up_write(&common->filesem);
 	}
+	up_write(&common->filesem);
 
 	/* Let fsg_unbind() know the thread has exited */
 	complete_and_exit(&common->thread_notifier, 0);
@@ -2776,13 +2779,6 @@ void fsg_common_remove_luns(struct fsg_c
 }
 EXPORT_SYMBOL_GPL(fsg_common_remove_luns);
 
-void fsg_common_set_ops(struct fsg_common *common,
-			const struct fsg_operations *ops)
-{
-	common->ops = ops;
-}
-EXPORT_SYMBOL_GPL(fsg_common_set_ops);
-
 void fsg_common_free_buffers(struct fsg_common *common)
 {
 	_fsg_common_free_buffers(common->buffhds, common->fsg_num_buffers);
@@ -2977,25 +2973,6 @@ void fsg_common_set_inquiry_string(struc
 }
 EXPORT_SYMBOL_GPL(fsg_common_set_inquiry_string);
 
-int fsg_common_run_thread(struct fsg_common *common)
-{
-	common->state = FSG_STATE_IDLE;
-	/* Tell the thread to start working */
-	common->thread_task =
-		kthread_create(fsg_main_thread, common, "file-storage");
-	if (IS_ERR(common->thread_task)) {
-		common->state = FSG_STATE_TERMINATED;
-		return PTR_ERR(common->thread_task);
-	}
-
-	DBG(common, "I/O thread pid: %d\n", task_pid_nr(common->thread_task));
-
-	wake_up_process(common->thread_task);
-
-	return 0;
-}
-EXPORT_SYMBOL_GPL(fsg_common_run_thread);
-
 static void fsg_common_release(struct kref *ref)
 {
 	struct fsg_common *common = container_of(ref, struct fsg_common, ref);
@@ -3005,6 +2982,7 @@ static void fsg_common_release(struct kr
 	if (common->state != FSG_STATE_TERMINATED) {
 		raise_exception(common, FSG_STATE_EXIT);
 		wait_for_completion(&common->thread_notifier);
+		common->thread_task = NULL;
 	}
 
 	for (i = 0; i < ARRAY_SIZE(common->luns); ++i) {
@@ -3050,9 +3028,21 @@ static int fsg_bind(struct usb_configura
 		if (ret)
 			return ret;
 		fsg_common_set_inquiry_string(fsg->common, NULL, NULL);
-		ret = fsg_common_run_thread(fsg->common);
-		if (ret)
+	}
+
+	if (!common->thread_task) {
+		common->state = FSG_STATE_IDLE;
+		common->thread_task =
+			kthread_create(fsg_main_thread, common, "file-storage");
+		if (IS_ERR(common->thread_task)) {
+			int ret = PTR_ERR(common->thread_task);
+			common->thread_task = NULL;
+			common->state = FSG_STATE_TERMINATED;
 			return ret;
+		}
+		DBG(common, "I/O thread pid: %d\n",
+		    task_pid_nr(common->thread_task));
+		wake_up_process(common->thread_task);
 	}
 
 	fsg->gadget = gadget;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/gadget/function/f_mass_storage.h linux-libre-4.4.107-gnu/drivers/usb/gadget/function/f_mass_storage.h
--- linux-libre-4.4-gnu/drivers/usb/gadget/function/f_mass_storage.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/gadget/function/f_mass_storage.h	2017-12-20 04:05:01.000000000 -0500
@@ -60,17 +60,6 @@ struct fsg_module_parameters {
 struct fsg_common;
 
 /* FSF callback functions */
-struct fsg_operations {
-	/*
-	 * Callback function to call when thread exits.  If no
-	 * callback is set or it returns value lower then zero MSF
-	 * will force eject all LUNs it operates on (including those
-	 * marked as non-removable or with prevent_medium_removal flag
-	 * set).
-	 */
-	int (*thread_exits)(struct fsg_common *common);
-};
-
 struct fsg_lun_opts {
 	struct config_group group;
 	struct fsg_lun *lun;
@@ -141,9 +130,6 @@ void fsg_common_remove_lun(struct fsg_lu
 
 void fsg_common_remove_luns(struct fsg_common *common);
 
-void fsg_common_set_ops(struct fsg_common *common,
-			const struct fsg_operations *ops);
-
 int fsg_common_create_lun(struct fsg_common *common, struct fsg_lun_config *cfg,
 			  unsigned int id, const char *name,
 			  const char **name_pfx);
@@ -153,8 +139,6 @@ int fsg_common_create_luns(struct fsg_co
 void fsg_common_set_inquiry_string(struct fsg_common *common, const char *vn,
 				   const char *pn);
 
-int fsg_common_run_thread(struct fsg_common *common);
-
 void fsg_config_from_params(struct fsg_config *cfg,
 			    const struct fsg_module_parameters *params,
 			    unsigned int fsg_num_buffers);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/gadget/function/f_midi.c linux-libre-4.4.107-gnu/drivers/usb/gadget/function/f_midi.c
--- linux-libre-4.4-gnu/drivers/usb/gadget/function/f_midi.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/gadget/function/f_midi.c	2017-12-20 04:05:01.000000000 -0500
@@ -361,7 +361,9 @@ static int f_midi_set_alt(struct usb_fun
 	/* allocate a bunch of read buffers and queue them all at once. */
 	for (i = 0; i < midi->qlen && err == 0; i++) {
 		struct usb_request *req =
-			midi_alloc_ep_req(midi->out_ep, midi->buflen);
+			midi_alloc_ep_req(midi->out_ep,
+				max_t(unsigned, midi->buflen,
+					bulk_out_desc.wMaxPacketSize));
 		if (req == NULL)
 			return -ENOMEM;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/gadget/function/f_uac2.c linux-libre-4.4.107-gnu/drivers/usb/gadget/function/f_uac2.c
--- linux-libre-4.4-gnu/drivers/usb/gadget/function/f_uac2.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/gadget/function/f_uac2.c	2017-12-20 04:05:01.000000000 -0500
@@ -1079,13 +1079,13 @@ afunc_bind(struct usb_configuration *cfg
 	agdev->out_ep = usb_ep_autoconfig(gadget, &fs_epout_desc);
 	if (!agdev->out_ep) {
 		dev_err(dev, "%s:%d Error!\n", __func__, __LINE__);
-		goto err;
+		return ret;
 	}
 
 	agdev->in_ep = usb_ep_autoconfig(gadget, &fs_epin_desc);
 	if (!agdev->in_ep) {
 		dev_err(dev, "%s:%d Error!\n", __func__, __LINE__);
-		goto err;
+		return ret;
 	}
 
 	uac2->p_prm.uac2 = uac2;
@@ -1102,7 +1102,7 @@ afunc_bind(struct usb_configuration *cfg
 
 	ret = usb_assign_descriptors(fn, fs_audio_desc, hs_audio_desc, NULL);
 	if (ret)
-		goto err;
+		return ret;
 
 	prm = &agdev->uac2.c_prm;
 	prm->max_psize = hs_epout_desc.wMaxPacketSize;
@@ -1117,19 +1117,19 @@ afunc_bind(struct usb_configuration *cfg
 	prm->rbuf = kzalloc(prm->max_psize * USB_XFERS, GFP_KERNEL);
 	if (!prm->rbuf) {
 		prm->max_psize = 0;
-		goto err_free_descs;
+		goto err;
 	}
 
 	ret = alsa_uac2_init(agdev);
 	if (ret)
-		goto err_free_descs;
+		goto err;
 	return 0;
 
-err_free_descs:
-	usb_free_all_descriptors(fn);
 err:
 	kfree(agdev->uac2.p_prm.rbuf);
 	kfree(agdev->uac2.c_prm.rbuf);
+err_free_descs:
+	usb_free_all_descriptors(fn);
 	return -EINVAL;
 }
 
@@ -1291,6 +1291,7 @@ in_rq_cur(struct usb_function *fn, const
 
 	if (control_selector == UAC2_CS_CONTROL_SAM_FREQ) {
 		struct cntrl_cur_lay3 c;
+		memset(&c, 0, sizeof(struct cntrl_cur_lay3));
 
 		if (entity_id == USB_IN_CLK_ID)
 			c.dCUR = p_srate;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/gadget/function/f_uvc.c linux-libre-4.4.107-gnu/drivers/usb/gadget/function/f_uvc.c
--- linux-libre-4.4-gnu/drivers/usb/gadget/function/f_uvc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/gadget/function/f_uvc.c	2017-12-20 04:05:01.000000000 -0500
@@ -625,7 +625,7 @@ uvc_function_bind(struct usb_configurati
 	uvc_ss_streaming_comp.bMaxBurst = opts->streaming_maxburst;
 	uvc_ss_streaming_comp.wBytesPerInterval =
 		cpu_to_le16(max_packet_size * max_packet_mult *
-			    opts->streaming_maxburst);
+			    (opts->streaming_maxburst + 1));
 
 	/* Allocate endpoints. */
 	ep = usb_ep_autoconfig(cdev->gadget, &uvc_control_ep);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/gadget/function/u_ether.c linux-libre-4.4.107-gnu/drivers/usb/gadget/function/u_ether.c
--- linux-libre-4.4-gnu/drivers/usb/gadget/function/u_ether.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/gadget/function/u_ether.c	2017-12-20 04:05:01.000000000 -0500
@@ -594,13 +594,6 @@ static netdev_tx_t eth_start_xmit(struct
 
 	req->length = length;
 
-	/* throttle high/super speed IRQ rate back slightly */
-	if (gadget_is_dualspeed(dev->gadget))
-		req->no_interrupt = (dev->gadget->speed == USB_SPEED_HIGH ||
-				     dev->gadget->speed == USB_SPEED_SUPER)
-			? ((atomic_read(&dev->tx_qlen) % dev->qmult) != 0)
-			: 0;
-
 	retval = usb_ep_queue(in, req, GFP_ATOMIC);
 	switch (retval) {
 	default:
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/gadget/function/uvc_video.c linux-libre-4.4.107-gnu/drivers/usb/gadget/function/uvc_video.c
--- linux-libre-4.4-gnu/drivers/usb/gadget/function/uvc_video.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/gadget/function/uvc_video.c	2017-12-20 04:05:01.000000000 -0500
@@ -243,7 +243,7 @@ uvc_video_alloc_requests(struct uvc_vide
 
 	req_size = video->ep->maxpacket
 		 * max_t(unsigned int, video->ep->maxburst, 1)
-		 * (video->ep->mult + 1);
+		 * (video->ep->mult);
 
 	for (i = 0; i < UVC_NUM_REQUESTS; ++i) {
 		video->req_buffer[i] = kmalloc(req_size, GFP_KERNEL);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/gadget/legacy/acm_ms.c linux-libre-4.4.107-gnu/drivers/usb/gadget/legacy/acm_ms.c
--- linux-libre-4.4-gnu/drivers/usb/gadget/legacy/acm_ms.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/gadget/legacy/acm_ms.c	2017-12-20 04:05:01.000000000 -0500
@@ -133,10 +133,6 @@ static int acm_ms_do_config(struct usb_c
 	if (status < 0)
 		goto put_msg;
 
-	status = fsg_common_run_thread(opts->common);
-	if (status)
-		goto remove_acm;
-
 	status = usb_add_function(c, f_msg);
 	if (status)
 		goto remove_acm;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/gadget/legacy/inode.c linux-libre-4.4.107-gnu/drivers/usb/gadget/legacy/inode.c
--- linux-libre-4.4-gnu/drivers/usb/gadget/legacy/inode.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/gadget/legacy/inode.c	2017-12-20 04:05:01.000000000 -0500
@@ -27,7 +27,7 @@
 #include <linux/mmu_context.h>
 #include <linux/aio.h>
 #include <linux/uio.h>
-
+#include <linux/delay.h>
 #include <linux/device.h>
 #include <linux/moduleparam.h>
 
@@ -116,6 +116,7 @@ enum ep0_state {
 struct dev_data {
 	spinlock_t			lock;
 	atomic_t			count;
+	int				udc_usage;
 	enum ep0_state			state;		/* P: lock */
 	struct usb_gadgetfs_event	event [N_EVENT];
 	unsigned			ev_next;
@@ -512,9 +513,9 @@ static void ep_aio_complete(struct usb_e
 		INIT_WORK(&priv->work, ep_user_copy_worker);
 		schedule_work(&priv->work);
 	}
-	spin_unlock(&epdata->dev->lock);
 
 	usb_ep_free_request(ep, req);
+	spin_unlock(&epdata->dev->lock);
 	put_ep(epdata);
 }
 
@@ -541,7 +542,7 @@ static ssize_t ep_aio(struct kiocb *iocb
 	 */
 	spin_lock_irq(&epdata->dev->lock);
 	value = -ENODEV;
-	if (unlikely(epdata->ep))
+	if (unlikely(epdata->ep == NULL))
 		goto fail;
 
 	req = usb_ep_alloc_request(epdata->ep, GFP_ATOMIC);
@@ -937,8 +938,13 @@ ep0_read (struct file *fd, char __user *
 			struct usb_ep		*ep = dev->gadget->ep0;
 			struct usb_request	*req = dev->req;
 
-			if ((retval = setup_req (ep, req, 0)) == 0)
-				retval = usb_ep_queue (ep, req, GFP_ATOMIC);
+			if ((retval = setup_req (ep, req, 0)) == 0) {
+				++dev->udc_usage;
+				spin_unlock_irq (&dev->lock);
+				retval = usb_ep_queue (ep, req, GFP_KERNEL);
+				spin_lock_irq (&dev->lock);
+				--dev->udc_usage;
+			}
 			dev->state = STATE_DEV_CONNECTED;
 
 			/* assume that was SET_CONFIGURATION */
@@ -979,11 +985,14 @@ ep0_read (struct file *fd, char __user *
 				retval = -EIO;
 			else {
 				len = min (len, (size_t)dev->req->actual);
-// FIXME don't call this with the spinlock held ...
+				++dev->udc_usage;
+				spin_unlock_irq(&dev->lock);
 				if (copy_to_user (buf, dev->req->buf, len))
 					retval = -EFAULT;
 				else
 					retval = len;
+				spin_lock_irq(&dev->lock);
+				--dev->udc_usage;
 				clean_req (dev->gadget->ep0, dev->req);
 				/* NOTE userspace can't yet choose to stall */
 			}
@@ -1122,11 +1131,12 @@ ep0_write (struct file *fd, const char _
 	/* data and/or status stage for control request */
 	} else if (dev->state == STATE_DEV_SETUP) {
 
-		/* IN DATA+STATUS caller makes len <= wLength */
+		len = min_t(size_t, len, dev->setup_wLength);
 		if (dev->setup_in) {
 			retval = setup_req (dev->gadget->ep0, dev->req, len);
 			if (retval == 0) {
 				dev->state = STATE_DEV_CONNECTED;
+				++dev->udc_usage;
 				spin_unlock_irq (&dev->lock);
 				if (copy_from_user (dev->req->buf, buf, len))
 					retval = -EFAULT;
@@ -1137,10 +1147,10 @@ ep0_write (struct file *fd, const char _
 						dev->gadget->ep0, dev->req,
 						GFP_KERNEL);
 				}
+				spin_lock_irq(&dev->lock);
+				--dev->udc_usage;
 				if (retval < 0) {
-					spin_lock_irq (&dev->lock);
 					clean_req (dev->gadget->ep0, dev->req);
-					spin_unlock_irq (&dev->lock);
 				} else
 					retval = len;
 
@@ -1237,9 +1247,21 @@ static long dev_ioctl (struct file *fd,
 	struct usb_gadget	*gadget = dev->gadget;
 	long ret = -ENOTTY;
 
-	if (gadget->ops->ioctl)
+	spin_lock_irq(&dev->lock);
+	if (dev->state == STATE_DEV_OPENED ||
+			dev->state == STATE_DEV_UNBOUND) {
+		/* Not bound to a UDC */
+	} else if (gadget->ops->ioctl) {
+		++dev->udc_usage;
+		spin_unlock_irq(&dev->lock);
+
 		ret = gadget->ops->ioctl (gadget, code, value);
 
+		spin_lock_irq(&dev->lock);
+		--dev->udc_usage;
+	}
+	spin_unlock_irq(&dev->lock);
+
 	return ret;
 }
 
@@ -1456,8 +1478,13 @@ delegate:
 							w_length);
 				if (value < 0)
 					break;
+
+				++dev->udc_usage;
+				spin_unlock (&dev->lock);
 				value = usb_ep_queue (gadget->ep0, dev->req,
-							GFP_ATOMIC);
+							GFP_KERNEL);
+				spin_lock (&dev->lock);
+				--dev->udc_usage;
 				if (value < 0) {
 					clean_req (gadget->ep0, dev->req);
 					break;
@@ -1480,11 +1507,18 @@ delegate:
 	if (value >= 0 && dev->state != STATE_DEV_SETUP) {
 		req->length = value;
 		req->zero = value < w_length;
-		value = usb_ep_queue (gadget->ep0, req, GFP_ATOMIC);
+
+		++dev->udc_usage;
+		spin_unlock (&dev->lock);
+		value = usb_ep_queue (gadget->ep0, req, GFP_KERNEL);
+		spin_lock(&dev->lock);
+		--dev->udc_usage;
+		spin_unlock(&dev->lock);
 		if (value < 0) {
 			DBG (dev, "ep_queue --> %d\n", value);
 			req->status = 0;
 		}
+		return value;
 	}
 
 	/* device stalls when value < 0 */
@@ -1506,21 +1540,24 @@ static void destroy_ep_files (struct dev
 		/* break link to FS */
 		ep = list_first_entry (&dev->epfiles, struct ep_data, epfiles);
 		list_del_init (&ep->epfiles);
+		spin_unlock_irq (&dev->lock);
+
 		dentry = ep->dentry;
 		ep->dentry = NULL;
 		parent = d_inode(dentry->d_parent);
 
 		/* break link to controller */
+		mutex_lock(&ep->lock);
 		if (ep->state == STATE_EP_ENABLED)
 			(void) usb_ep_disable (ep->ep);
 		ep->state = STATE_EP_UNBOUND;
 		usb_ep_free_request (ep->ep, ep->req);
 		ep->ep = NULL;
+		mutex_unlock(&ep->lock);
+
 		wake_up (&ep->wait);
 		put_ep (ep);
 
-		spin_unlock_irq (&dev->lock);
-
 		/* break link to dcache */
 		mutex_lock (&parent->i_mutex);
 		d_delete (dentry);
@@ -1591,6 +1628,11 @@ gadgetfs_unbind (struct usb_gadget *gadg
 
 	spin_lock_irq (&dev->lock);
 	dev->state = STATE_DEV_UNBOUND;
+	while (dev->udc_usage > 0) {
+		spin_unlock_irq(&dev->lock);
+		usleep_range(1000, 2000);
+		spin_lock_irq(&dev->lock);
+	}
 	spin_unlock_irq (&dev->lock);
 
 	destroy_ep_files (dev);
@@ -1667,9 +1709,10 @@ static void
 gadgetfs_suspend (struct usb_gadget *gadget)
 {
 	struct dev_data		*dev = get_gadget_data (gadget);
+	unsigned long		flags;
 
 	INFO (dev, "suspended from state %d\n", dev->state);
-	spin_lock (&dev->lock);
+	spin_lock_irqsave(&dev->lock, flags);
 	switch (dev->state) {
 	case STATE_DEV_SETUP:		// VERY odd... host died??
 	case STATE_DEV_CONNECTED:
@@ -1680,7 +1723,7 @@ gadgetfs_suspend (struct usb_gadget *gad
 	default:
 		break;
 	}
-	spin_unlock (&dev->lock);
+	spin_unlock_irqrestore(&dev->lock, flags);
 }
 
 static struct usb_gadget_driver gadgetfs_driver = {
@@ -1746,10 +1789,12 @@ static struct usb_gadget_driver probe_dr
  * such as configuration notifications.
  */
 
-static int is_valid_config (struct usb_config_descriptor *config)
+static int is_valid_config(struct usb_config_descriptor *config,
+		unsigned int total)
 {
 	return config->bDescriptorType == USB_DT_CONFIG
 		&& config->bLength == USB_DT_CONFIG_SIZE
+		&& total >= USB_DT_CONFIG_SIZE
 		&& config->bConfigurationValue != 0
 		&& (config->bmAttributes & USB_CONFIG_ATT_ONE) != 0
 		&& (config->bmAttributes & USB_CONFIG_ATT_WAKEUP) == 0;
@@ -1774,7 +1819,8 @@ dev_config (struct file *fd, const char
 	}
 	spin_unlock_irq(&dev->lock);
 
-	if (len < (USB_DT_CONFIG_SIZE + USB_DT_DEVICE_SIZE + 4))
+	if ((len < (USB_DT_CONFIG_SIZE + USB_DT_DEVICE_SIZE + 4)) ||
+	    (len > PAGE_SIZE * 4))
 		return -EINVAL;
 
 	/* we might need to change message format someday */
@@ -1791,14 +1837,17 @@ dev_config (struct file *fd, const char
 
 	spin_lock_irq (&dev->lock);
 	value = -EINVAL;
-	if (dev->buf)
+	if (dev->buf) {
+		kfree(kbuf);
 		goto fail;
+	}
 	dev->buf = kbuf;
 
 	/* full or low speed config */
 	dev->config = (void *) kbuf;
 	total = le16_to_cpu(dev->config->wTotalLength);
-	if (!is_valid_config (dev->config) || total >= length)
+	if (!is_valid_config(dev->config, total) ||
+			total > length - USB_DT_DEVICE_SIZE)
 		goto fail;
 	kbuf += total;
 	length -= total;
@@ -1807,10 +1856,13 @@ dev_config (struct file *fd, const char
 	if (kbuf [1] == USB_DT_CONFIG) {
 		dev->hs_config = (void *) kbuf;
 		total = le16_to_cpu(dev->hs_config->wTotalLength);
-		if (!is_valid_config (dev->hs_config) || total >= length)
+		if (!is_valid_config(dev->hs_config, total) ||
+				total > length - USB_DT_DEVICE_SIZE)
 			goto fail;
 		kbuf += total;
 		length -= total;
+	} else {
+		dev->hs_config = NULL;
 	}
 
 	/* could support multiple configs, using another encoding! */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/gadget/legacy/mass_storage.c linux-libre-4.4.107-gnu/drivers/usb/gadget/legacy/mass_storage.c
--- linux-libre-4.4-gnu/drivers/usb/gadget/legacy/mass_storage.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/gadget/legacy/mass_storage.c	2017-12-20 04:05:01.000000000 -0500
@@ -107,15 +107,6 @@ static unsigned int fsg_num_buffers = CO
 
 FSG_MODULE_PARAMETERS(/* no prefix */, mod_data);
 
-static unsigned long msg_registered;
-static void msg_cleanup(void);
-
-static int msg_thread_exits(struct fsg_common *common)
-{
-	msg_cleanup();
-	return 0;
-}
-
 static int msg_do_config(struct usb_configuration *c)
 {
 	struct fsg_opts *opts;
@@ -132,10 +123,6 @@ static int msg_do_config(struct usb_conf
 	if (IS_ERR(f_msg))
 		return PTR_ERR(f_msg);
 
-	ret = fsg_common_run_thread(opts->common);
-	if (ret)
-		goto put_func;
-
 	ret = usb_add_function(c, f_msg);
 	if (ret)
 		goto put_func;
@@ -158,9 +145,6 @@ static struct usb_configuration msg_conf
 
 static int msg_bind(struct usb_composite_dev *cdev)
 {
-	static const struct fsg_operations ops = {
-		.thread_exits = msg_thread_exits,
-	};
 	struct fsg_opts *opts;
 	struct fsg_config config;
 	int status;
@@ -177,8 +161,6 @@ static int msg_bind(struct usb_composite
 	if (status)
 		goto fail;
 
-	fsg_common_set_ops(opts->common, &ops);
-
 	status = fsg_common_set_cdev(opts->common, cdev, config.can_stall);
 	if (status)
 		goto fail_set_cdev;
@@ -214,7 +196,6 @@ static int msg_bind(struct usb_composite
 	usb_composite_overwrite_options(cdev, &coverwrite);
 	dev_info(&cdev->gadget->dev,
 		 DRIVER_DESC ", version: " DRIVER_VERSION "\n");
-	set_bit(0, &msg_registered);
 	return 0;
 
 fail_otg_desc:
@@ -265,9 +246,8 @@ static int __init msg_init(void)
 }
 module_init(msg_init);
 
-static void msg_cleanup(void)
+static void __exit msg_cleanup(void)
 {
-	if (test_and_clear_bit(0, &msg_registered))
-		usb_composite_unregister(&msg_driver);
+	usb_composite_unregister(&msg_driver);
 }
 module_exit(msg_cleanup);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/gadget/legacy/multi.c linux-libre-4.4.107-gnu/drivers/usb/gadget/legacy/multi.c
--- linux-libre-4.4-gnu/drivers/usb/gadget/legacy/multi.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/gadget/legacy/multi.c	2017-12-20 04:05:01.000000000 -0500
@@ -137,7 +137,6 @@ static struct usb_function *f_msg_rndis;
 
 static int rndis_do_config(struct usb_configuration *c)
 {
-	struct fsg_opts *fsg_opts;
 	int ret;
 
 	if (gadget_is_otg(c->cdev->gadget)) {
@@ -169,11 +168,6 @@ static int rndis_do_config(struct usb_co
 		goto err_fsg;
 	}
 
-	fsg_opts = fsg_opts_from_func_inst(fi_msg);
-	ret = fsg_common_run_thread(fsg_opts->common);
-	if (ret)
-		goto err_run;
-
 	ret = usb_add_function(c, f_msg_rndis);
 	if (ret)
 		goto err_run;
@@ -225,7 +219,6 @@ static struct usb_function *f_msg_multi;
 
 static int cdc_do_config(struct usb_configuration *c)
 {
-	struct fsg_opts *fsg_opts;
 	int ret;
 
 	if (gadget_is_otg(c->cdev->gadget)) {
@@ -258,11 +251,6 @@ static int cdc_do_config(struct usb_conf
 		goto err_fsg;
 	}
 
-	fsg_opts = fsg_opts_from_func_inst(fi_msg);
-	ret = fsg_common_run_thread(fsg_opts->common);
-	if (ret)
-		goto err_run;
-
 	ret = usb_add_function(c, f_msg_multi);
 	if (ret)
 		goto err_run;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/gadget/legacy/nokia.c linux-libre-4.4.107-gnu/drivers/usb/gadget/legacy/nokia.c
--- linux-libre-4.4-gnu/drivers/usb/gadget/legacy/nokia.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/gadget/legacy/nokia.c	2017-12-20 04:05:01.000000000 -0500
@@ -152,7 +152,6 @@ static int nokia_bind_config(struct usb_
 	struct usb_function *f_ecm;
 	struct usb_function *f_obex2 = NULL;
 	struct usb_function *f_msg;
-	struct fsg_opts *fsg_opts;
 	int status = 0;
 	int obex1_stat = -1;
 	int obex2_stat = -1;
@@ -222,12 +221,6 @@ static int nokia_bind_config(struct usb_
 		goto err_ecm;
 	}
 
-	fsg_opts = fsg_opts_from_func_inst(fi_msg);
-
-	status = fsg_common_run_thread(fsg_opts->common);
-	if (status)
-		goto err_msg;
-
 	status = usb_add_function(c, f_msg);
 	if (status)
 		goto err_msg;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/gadget/udc/atmel_usba_udc.c linux-libre-4.4.107-gnu/drivers/usb/gadget/udc/atmel_usba_udc.c
--- linux-libre-4.4-gnu/drivers/usb/gadget/udc/atmel_usba_udc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/gadget/udc/atmel_usba_udc.c	2017-12-20 04:05:01.000000000 -0500
@@ -28,6 +28,8 @@
 #include <asm/gpio.h>
 
 #include "atmel_usba_udc.h"
+#define USBA_VBUS_IRQFLAGS (IRQF_ONESHOT \
+			   | IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING)
 
 #ifdef CONFIG_USB_GADGET_DEBUG_FS
 #include <linux/debugfs.h>
@@ -2185,7 +2187,7 @@ static int usba_udc_probe(struct platfor
 					IRQ_NOAUTOEN);
 			ret = devm_request_threaded_irq(&pdev->dev,
 					gpio_to_irq(udc->vbus_pin), NULL,
-					usba_vbus_irq_thread, IRQF_ONESHOT,
+					usba_vbus_irq_thread, USBA_VBUS_IRQFLAGS,
 					"atmel_usba_udc", udc);
 			if (ret) {
 				udc->vbus_pin = -ENODEV;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/gadget/udc/dummy_hcd.c linux-libre-4.4.107-gnu/drivers/usb/gadget/udc/dummy_hcd.c
--- linux-libre-4.4-gnu/drivers/usb/gadget/udc/dummy_hcd.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/gadget/udc/dummy_hcd.c	2017-12-20 04:05:01.000000000 -0500
@@ -237,6 +237,8 @@ struct dummy_hcd {
 
 	struct usb_device		*udev;
 	struct list_head		urbp_list;
+	struct urbp			*next_frame_urbp;
+
 	u32				stream_en_ep;
 	u8				num_stream[30 / 2];
 
@@ -253,11 +255,13 @@ struct dummy {
 	 */
 	struct dummy_ep			ep[DUMMY_ENDPOINTS];
 	int				address;
+	int				callback_usage;
 	struct usb_gadget		gadget;
 	struct usb_gadget_driver	*driver;
 	struct dummy_request		fifo_req;
 	u8				fifo_buf[FIFO_SIZE];
 	u16				devstatus;
+	unsigned			ints_enabled:1;
 	unsigned			udc_suspended:1;
 	unsigned			pullup:1;
 
@@ -330,7 +334,7 @@ static void nuke(struct dummy *dum, stru
 /* caller must hold lock */
 static void stop_activity(struct dummy *dum)
 {
-	struct dummy_ep	*ep;
+	int i;
 
 	/* prevent any more requests */
 	dum->address = 0;
@@ -338,8 +342,8 @@ static void stop_activity(struct dummy *
 	/* The timer is left running so that outstanding URBs can fail */
 
 	/* nuke any pending requests first, so driver i/o is quiesced */
-	list_for_each_entry(ep, &dum->gadget.ep_list, ep.ep_list)
-		nuke(dum, ep);
+	for (i = 0; i < DUMMY_ENDPOINTS; ++i)
+		nuke(dum, &dum->ep[i]);
 
 	/* driver now does any non-usb quiescing necessary */
 }
@@ -416,6 +420,7 @@ static void set_link_state_by_speed(stru
 static void set_link_state(struct dummy_hcd *dum_hcd)
 {
 	struct dummy *dum = dum_hcd->dum;
+	unsigned int power_bit;
 
 	dum_hcd->active = 0;
 	if (dum->pullup)
@@ -426,39 +431,43 @@ static void set_link_state(struct dummy_
 			return;
 
 	set_link_state_by_speed(dum_hcd);
+	power_bit = (dummy_hcd_to_hcd(dum_hcd)->speed == HCD_USB3 ?
+			USB_SS_PORT_STAT_POWER : USB_PORT_STAT_POWER);
 
 	if ((dum_hcd->port_status & USB_PORT_STAT_ENABLE) == 0 ||
 	     dum_hcd->active)
 		dum_hcd->resuming = 0;
 
 	/* Currently !connected or in reset */
-	if ((dum_hcd->port_status & USB_PORT_STAT_CONNECTION) == 0 ||
+	if ((dum_hcd->port_status & power_bit) == 0 ||
 			(dum_hcd->port_status & USB_PORT_STAT_RESET) != 0) {
-		unsigned disconnect = USB_PORT_STAT_CONNECTION &
+		unsigned int disconnect = power_bit &
 				dum_hcd->old_status & (~dum_hcd->port_status);
-		unsigned reset = USB_PORT_STAT_RESET &
+		unsigned int reset = USB_PORT_STAT_RESET &
 				(~dum_hcd->old_status) & dum_hcd->port_status;
 
 		/* Report reset and disconnect events to the driver */
-		if (dum->driver && (disconnect || reset)) {
+		if (dum->ints_enabled && (disconnect || reset)) {
 			stop_activity(dum);
+			++dum->callback_usage;
 			spin_unlock(&dum->lock);
 			if (reset)
 				usb_gadget_udc_reset(&dum->gadget, dum->driver);
 			else
 				dum->driver->disconnect(&dum->gadget);
 			spin_lock(&dum->lock);
+			--dum->callback_usage;
 		}
-	} else if (dum_hcd->active != dum_hcd->old_active) {
-		if (dum_hcd->old_active && dum->driver->suspend) {
-			spin_unlock(&dum->lock);
+	} else if (dum_hcd->active != dum_hcd->old_active &&
+			dum->ints_enabled) {
+		++dum->callback_usage;
+		spin_unlock(&dum->lock);
+		if (dum_hcd->old_active && dum->driver->suspend)
 			dum->driver->suspend(&dum->gadget);
-			spin_lock(&dum->lock);
-		} else if (!dum_hcd->old_active &&  dum->driver->resume) {
-			spin_unlock(&dum->lock);
+		else if (!dum_hcd->old_active &&  dum->driver->resume)
 			dum->driver->resume(&dum->gadget);
-			spin_lock(&dum->lock);
-		}
+		spin_lock(&dum->lock);
+		--dum->callback_usage;
 	}
 
 	dum_hcd->old_status = dum_hcd->port_status;
@@ -974,8 +983,11 @@ static int dummy_udc_start(struct usb_ga
 	 * can't enumerate without help from the driver we're binding.
 	 */
 
+	spin_lock_irq(&dum->lock);
 	dum->devstatus = 0;
 	dum->driver = driver;
+	dum->ints_enabled = 1;
+	spin_unlock_irq(&dum->lock);
 
 	return 0;
 }
@@ -985,7 +997,19 @@ static int dummy_udc_stop(struct usb_gad
 	struct dummy_hcd	*dum_hcd = gadget_to_dummy_hcd(g);
 	struct dummy		*dum = dum_hcd->dum;
 
+	spin_lock_irq(&dum->lock);
+	dum->ints_enabled = 0;
+	stop_activity(dum);
+
+	/* emulate synchronize_irq(): wait for callbacks to finish */
+	while (dum->callback_usage > 0) {
+		spin_unlock_irq(&dum->lock);
+		usleep_range(1000, 2000);
+		spin_lock_irq(&dum->lock);
+	}
+
 	dum->driver = NULL;
+	spin_unlock_irq(&dum->lock);
 
 	return 0;
 }
@@ -1033,9 +1057,16 @@ static int dummy_udc_probe(struct platfo
 	int		rc;
 
 	dum = *((void **)dev_get_platdata(&pdev->dev));
+	/* Clear usb_gadget region for new registration to udc-core */
+	memzero_explicit(&dum->gadget, sizeof(struct usb_gadget));
 	dum->gadget.name = gadget_name;
 	dum->gadget.ops = &dummy_ops;
-	dum->gadget.max_speed = USB_SPEED_SUPER;
+	if (mod_data.is_super_speed)
+		dum->gadget.max_speed = USB_SPEED_SUPER;
+	else if (mod_data.is_high_speed)
+		dum->gadget.max_speed = USB_SPEED_HIGH;
+	else
+		dum->gadget.max_speed = USB_SPEED_FULL;
 
 	dum->gadget.dev.parent = &pdev->dev;
 	init_dummy_udc_hw(dum);
@@ -1244,6 +1275,8 @@ static int dummy_urb_enqueue(
 
 	list_add_tail(&urbp->urbp_list, &dum_hcd->urbp_list);
 	urb->hcpriv = urbp;
+	if (!dum_hcd->next_frame_urbp)
+		dum_hcd->next_frame_urbp = urbp;
 	if (usb_pipetype(urb->pipe) == PIPE_CONTROL)
 		urb->error_count = 1;		/* mark as a new urb */
 
@@ -1520,6 +1553,8 @@ static struct dummy_ep *find_endpoint(st
 	if (!is_active((dum->gadget.speed == USB_SPEED_SUPER ?
 			dum->ss_hcd : dum->hs_hcd)))
 		return NULL;
+	if (!dum->ints_enabled)
+		return NULL;
 	if ((address & ~USB_DIR_IN) == 0)
 		return &dum->ep[0];
 	for (i = 1; i < DUMMY_ENDPOINTS; i++) {
@@ -1761,6 +1796,7 @@ static void dummy_timer(unsigned long _d
 		spin_unlock_irqrestore(&dum->lock, flags);
 		return;
 	}
+	dum_hcd->next_frame_urbp = NULL;
 
 	for (i = 0; i < DUMMY_ENDPOINTS; i++) {
 		if (!ep_info[i].name)
@@ -1777,6 +1813,10 @@ restart:
 		int			type;
 		int			status = -EINPROGRESS;
 
+		/* stop when we reach URBs queued after the timer interrupt */
+		if (urbp == dum_hcd->next_frame_urbp)
+			break;
+
 		urb = urbp->urb;
 		if (urb->unlinked)
 			goto return_urb;
@@ -1856,10 +1896,12 @@ restart:
 			 * until setup() returns; no reentrancy issues etc.
 			 */
 			if (value > 0) {
+				++dum->callback_usage;
 				spin_unlock(&dum->lock);
 				value = dum->driver->setup(&dum->gadget,
 						&setup);
 				spin_lock(&dum->lock);
+				--dum->callback_usage;
 
 				if (value >= 0) {
 					/* no delays (max 64KB data stage) */
@@ -2009,7 +2051,7 @@ ss_hub_descriptor(struct usb_hub_descrip
 			HUB_CHAR_COMMON_OCPM);
 	desc->bNbrPorts = 1;
 	desc->u.ss.bHubHdrDecLat = 0x04; /* Worst case: 0.4 micro sec*/
-	desc->u.ss.DeviceRemovable = 0xffff;
+	desc->u.ss.DeviceRemovable = 0;
 }
 
 static inline void hub_descriptor(struct usb_hub_descriptor *desc)
@@ -2021,8 +2063,8 @@ static inline void hub_descriptor(struct
 			HUB_CHAR_INDV_PORT_LPSM |
 			HUB_CHAR_COMMON_OCPM);
 	desc->bNbrPorts = 1;
-	desc->u.hs.DeviceRemovable[0] = 0xff;
-	desc->u.hs.DeviceRemovable[1] = 0xff;
+	desc->u.hs.DeviceRemovable[0] = 0;
+	desc->u.hs.DeviceRemovable[1] = 0xff;	/* PortPwrCtrlMask */
 }
 
 static int dummy_hub_control(
@@ -2567,8 +2609,6 @@ static struct hc_driver dummy_hcd = {
 	.product_desc =		"Dummy host controller",
 	.hcd_priv_size =	sizeof(struct dummy_hcd),
 
-	.flags =		HCD_USB3 | HCD_SHARED,
-
 	.reset =		dummy_setup,
 	.start =		dummy_start,
 	.stop =			dummy_stop,
@@ -2597,8 +2637,12 @@ static int dummy_hcd_probe(struct platfo
 	dev_info(&pdev->dev, "%s, driver " DRIVER_VERSION "\n", driver_desc);
 	dum = *((void **)dev_get_platdata(&pdev->dev));
 
-	if (!mod_data.is_super_speed)
+	if (mod_data.is_super_speed)
+		dummy_hcd.flags = HCD_USB3 | HCD_SHARED;
+	else if (mod_data.is_high_speed)
 		dummy_hcd.flags = HCD_USB2;
+	else
+		dummy_hcd.flags = HCD_USB11;
 	hs_hcd = usb_create_hcd(&dummy_hcd, &pdev->dev, dev_name(&pdev->dev));
 	if (!hs_hcd)
 		return -ENOMEM;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/gadget/udc/fsl_qe_udc.c linux-libre-4.4.107-gnu/drivers/usb/gadget/udc/fsl_qe_udc.c
--- linux-libre-4.4-gnu/drivers/usb/gadget/udc/fsl_qe_udc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/gadget/udc/fsl_qe_udc.c	2017-12-20 04:05:01.000000000 -0500
@@ -1878,11 +1878,8 @@ static int qe_get_frame(struct usb_gadge
 
 	tmp = in_be16(&udc->usb_param->frame_n);
 	if (tmp & 0x8000)
-		tmp = tmp & 0x07ff;
-	else
-		tmp = -EINVAL;
-
-	return (int)tmp;
+		return tmp & 0x07ff;
+	return -EINVAL;
 }
 
 static int fsl_qe_start(struct usb_gadget *gadget,
@@ -2053,7 +2050,7 @@ static void setup_received_handle(struct
 			struct qe_ep *ep;
 
 			if (wValue != 0 || wLength != 0
-				|| pipe > USB_MAX_ENDPOINTS)
+				|| pipe >= USB_MAX_ENDPOINTS)
 				break;
 			ep = &udc->eps[pipe];
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/gadget/udc/fsl_udc_core.c linux-libre-4.4.107-gnu/drivers/usb/gadget/udc/fsl_udc_core.c
--- linux-libre-4.4-gnu/drivers/usb/gadget/udc/fsl_udc_core.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/gadget/udc/fsl_udc_core.c	2017-12-20 04:05:01.000000000 -0500
@@ -1249,6 +1249,12 @@ static const struct usb_gadget_ops fsl_g
 	.udc_stop = fsl_udc_stop,
 };
 
+/*
+ * Empty complete function used by this driver to fill in the req->complete
+ * field when creating a request since the complete field is mandatory.
+ */
+static void fsl_noop_complete(struct usb_ep *ep, struct usb_request *req) { }
+
 /* Set protocol stall on ep0, protocol stall will automatically be cleared
    on new transaction */
 static void ep0stall(struct fsl_udc *udc)
@@ -1283,7 +1289,7 @@ static int ep0_prime_status(struct fsl_u
 	req->req.length = 0;
 	req->req.status = -EINPROGRESS;
 	req->req.actual = 0;
-	req->req.complete = NULL;
+	req->req.complete = fsl_noop_complete;
 	req->dtd_count = 0;
 
 	ret = usb_gadget_map_request(&ep->udc->gadget, &req->req, ep_is_in(ep));
@@ -1366,7 +1372,7 @@ static void ch9getstatus(struct fsl_udc
 	req->req.length = 2;
 	req->req.status = -EINPROGRESS;
 	req->req.actual = 0;
-	req->req.complete = NULL;
+	req->req.complete = fsl_noop_complete;
 	req->dtd_count = 0;
 
 	ret = usb_gadget_map_request(&ep->udc->gadget, &req->req, ep_is_in(ep));
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/gadget/udc/net2280.c linux-libre-4.4.107-gnu/drivers/usb/gadget/udc/net2280.c
--- linux-libre-4.4-gnu/drivers/usb/gadget/udc/net2280.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/gadget/udc/net2280.c	2017-12-20 04:05:01.000000000 -0500
@@ -2425,11 +2425,8 @@ static void stop_activity(struct net2280
 		nuke(&dev->ep[i]);
 
 	/* report disconnect; the driver is already quiesced */
-	if (driver) {
-		spin_unlock(&dev->lock);
+	if (driver)
 		driver->disconnect(&dev->gadget);
-		spin_lock(&dev->lock);
-	}
 
 	usb_reinit(dev);
 }
@@ -3275,8 +3272,6 @@ next_endpoints:
 		BIT(PCI_RETRY_ABORT_INTERRUPT))
 
 static void handle_stat1_irqs(struct net2280 *dev, u32 stat)
-__releases(dev->lock)
-__acquires(dev->lock)
 {
 	struct net2280_ep	*ep;
 	u32			tmp, num, mask, scratch;
@@ -3317,14 +3312,12 @@ __acquires(dev->lock)
 			if (disconnect || reset) {
 				stop_activity(dev, dev->driver);
 				ep0_start(dev);
-				spin_unlock(&dev->lock);
 				if (reset)
 					usb_gadget_udc_reset
 						(&dev->gadget, dev->driver);
 				else
 					(dev->driver->disconnect)
 						(&dev->gadget);
-				spin_lock(&dev->lock);
 				return;
 			}
 		}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/gadget/udc/udc-core.c linux-libre-4.4.107-gnu/drivers/usb/gadget/udc/udc-core.c
--- linux-libre-4.4-gnu/drivers/usb/gadget/udc/udc-core.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/gadget/udc/udc-core.c	2017-12-20 04:05:01.000000000 -0500
@@ -71,7 +71,7 @@ int usb_gadget_map_request(struct usb_ga
 		mapped = dma_map_sg(dev, req->sg, req->num_sgs,
 				is_in ? DMA_TO_DEVICE : DMA_FROM_DEVICE);
 		if (mapped == 0) {
-			dev_err(&gadget->dev, "failed to map SGs\n");
+			dev_err(dev, "failed to map SGs\n");
 			return -EFAULT;
 		}
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/host/ehci-dbg.c linux-libre-4.4.107-gnu/drivers/usb/host/ehci-dbg.c
--- linux-libre-4.4-gnu/drivers/usb/host/ehci-dbg.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/host/ehci-dbg.c	2017-12-20 04:05:01.000000000 -0500
@@ -851,7 +851,7 @@ static ssize_t fill_registers_buffer(str
 			default:		/* unknown */
 				break;
 			}
-			temp = (cap >> 8) & 0xff;
+			offset = (cap >> 8) & 0xff;
 		}
 	}
 #endif
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/host/ehci-exynos.c linux-libre-4.4.107-gnu/drivers/usb/host/ehci-exynos.c
--- linux-libre-4.4-gnu/drivers/usb/host/ehci-exynos.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/host/ehci-exynos.c	2017-12-20 04:05:01.000000000 -0500
@@ -77,10 +77,12 @@ static int exynos_ehci_get_phy(struct de
 		if (IS_ERR(phy)) {
 			ret = PTR_ERR(phy);
 			if (ret == -EPROBE_DEFER) {
+				of_node_put(child);
 				return ret;
 			} else if (ret != -ENOSYS && ret != -ENODEV) {
 				dev_err(dev,
 					"Error retrieving usb2 phy: %d\n", ret);
+				of_node_put(child);
 				return ret;
 			}
 		}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/host/ehci-hcd.c linux-libre-4.4.107-gnu/drivers/usb/host/ehci-hcd.c
--- linux-libre-4.4-gnu/drivers/usb/host/ehci-hcd.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/host/ehci-hcd.c	2017-12-20 04:05:01.000000000 -0500
@@ -332,11 +332,11 @@ static void ehci_turn_off_all_ports(stru
 	int	port = HCS_N_PORTS(ehci->hcs_params);
 
 	while (port--) {
-		ehci_writel(ehci, PORT_RWC_BITS,
-				&ehci->regs->port_status[port]);
 		spin_unlock_irq(&ehci->lock);
 		ehci_port_power(ehci, port, false);
 		spin_lock_irq(&ehci->lock);
+		ehci_writel(ehci, PORT_RWC_BITS,
+				&ehci->regs->port_status[port]);
 	}
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/host/ehci-tegra.c linux-libre-4.4.107-gnu/drivers/usb/host/ehci-tegra.c
--- linux-libre-4.4-gnu/drivers/usb/host/ehci-tegra.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/host/ehci-tegra.c	2017-12-20 04:05:01.000000000 -0500
@@ -89,7 +89,7 @@ static int tegra_reset_usb_controller(st
 	if (!usb1_reset_attempted) {
 		struct reset_control *usb1_reset;
 
-		usb1_reset = of_reset_control_get(phy_np, "usb");
+		usb1_reset = of_reset_control_get(phy_np, "utmi-pads");
 		if (IS_ERR(usb1_reset)) {
 			dev_warn(&pdev->dev,
 				 "can't get utmi-pads reset from the PHY\n");
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/host/ohci-exynos.c linux-libre-4.4.107-gnu/drivers/usb/host/ohci-exynos.c
--- linux-libre-4.4-gnu/drivers/usb/host/ohci-exynos.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/host/ohci-exynos.c	2017-12-20 04:05:01.000000000 -0500
@@ -66,10 +66,12 @@ static int exynos_ohci_get_phy(struct de
 		if (IS_ERR(phy)) {
 			ret = PTR_ERR(phy);
 			if (ret == -EPROBE_DEFER) {
+				of_node_put(child);
 				return ret;
 			} else if (ret != -ENOSYS && ret != -ENODEV) {
 				dev_err(dev,
 					"Error retrieving usb2 phy: %d\n", ret);
+				of_node_put(child);
 				return ret;
 			}
 		}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/host/ohci-hcd.c linux-libre-4.4.107-gnu/drivers/usb/host/ohci-hcd.c
--- linux-libre-4.4-gnu/drivers/usb/host/ohci-hcd.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/host/ohci-hcd.c	2017-12-20 04:05:01.000000000 -0500
@@ -72,7 +72,7 @@
 static const char	hcd_name [] = "ohci_hcd";
 
 #define	STATECHANGE_DELAY	msecs_to_jiffies(300)
-#define	IO_WATCHDOG_DELAY	msecs_to_jiffies(250)
+#define	IO_WATCHDOG_DELAY	msecs_to_jiffies(275)
 
 #include "ohci.h"
 #include "pci-quirks.h"
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/host/ohci-q.c linux-libre-4.4.107-gnu/drivers/usb/host/ohci-q.c
--- linux-libre-4.4-gnu/drivers/usb/host/ohci-q.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/host/ohci-q.c	2017-12-20 04:05:01.000000000 -0500
@@ -183,7 +183,6 @@ static int ed_schedule (struct ohci_hcd
 {
 	int	branch;
 
-	ed->state = ED_OPER;
 	ed->ed_prev = NULL;
 	ed->ed_next = NULL;
 	ed->hwNextED = 0;
@@ -259,6 +258,8 @@ static int ed_schedule (struct ohci_hcd
 	/* the HC may not see the schedule updates yet, but if it does
 	 * then they'll be properly ordered.
 	 */
+
+	ed->state = ED_OPER;
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/host/pci-quirks.c linux-libre-4.4.107-gnu/drivers/usb/host/pci-quirks.c
--- linux-libre-4.4-gnu/drivers/usb/host/pci-quirks.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/host/pci-quirks.c	2017-12-20 04:05:01.000000000 -0500
@@ -89,6 +89,7 @@ enum amd_chipset_gen {
 	AMD_CHIPSET_HUDSON2,
 	AMD_CHIPSET_BOLTON,
 	AMD_CHIPSET_YANGTZE,
+	AMD_CHIPSET_TAISHAN,
 	AMD_CHIPSET_UNKNOWN,
 };
 
@@ -136,20 +137,26 @@ static int amd_chipset_sb_type_init(stru
 		pinfo->smbus_dev = pci_get_device(PCI_VENDOR_ID_AMD,
 				PCI_DEVICE_ID_AMD_HUDSON2_SMBUS, NULL);
 
-		if (!pinfo->smbus_dev) {
-			pinfo->sb_type.gen = NOT_AMD_CHIPSET;
-			return 0;
+		if (pinfo->smbus_dev) {
+			rev = pinfo->smbus_dev->revision;
+			if (rev >= 0x11 && rev <= 0x14)
+				pinfo->sb_type.gen = AMD_CHIPSET_HUDSON2;
+			else if (rev >= 0x15 && rev <= 0x18)
+				pinfo->sb_type.gen = AMD_CHIPSET_BOLTON;
+			else if (rev >= 0x39 && rev <= 0x3a)
+				pinfo->sb_type.gen = AMD_CHIPSET_YANGTZE;
+		} else {
+			pinfo->smbus_dev = pci_get_device(PCI_VENDOR_ID_AMD,
+							  0x145c, NULL);
+			if (pinfo->smbus_dev) {
+				rev = pinfo->smbus_dev->revision;
+				pinfo->sb_type.gen = AMD_CHIPSET_TAISHAN;
+			} else {
+				pinfo->sb_type.gen = NOT_AMD_CHIPSET;
+				return 0;
+			}
 		}
-
-		rev = pinfo->smbus_dev->revision;
-		if (rev >= 0x11 && rev <= 0x14)
-			pinfo->sb_type.gen = AMD_CHIPSET_HUDSON2;
-		else if (rev >= 0x15 && rev <= 0x18)
-			pinfo->sb_type.gen = AMD_CHIPSET_BOLTON;
-		else if (rev >= 0x39 && rev <= 0x3a)
-			pinfo->sb_type.gen = AMD_CHIPSET_YANGTZE;
 	}
-
 	pinfo->sb_type.rev = rev;
 	return 1;
 }
@@ -251,11 +258,12 @@ int usb_hcd_amd_remote_wakeup_quirk(stru
 {
 	/* Make sure amd chipset type has already been initialized */
 	usb_amd_find_chipset_info();
-	if (amd_chipset.sb_type.gen != AMD_CHIPSET_YANGTZE)
-		return 0;
-
-	dev_dbg(&pdev->dev, "QUIRK: Enable AMD remote wakeup fix\n");
-	return 1;
+	if (amd_chipset.sb_type.gen == AMD_CHIPSET_YANGTZE ||
+	    amd_chipset.sb_type.gen == AMD_CHIPSET_TAISHAN) {
+		dev_dbg(&pdev->dev, "QUIRK: Enable AMD remote wakeup fix\n");
+		return 1;
+	}
+	return 0;
 }
 EXPORT_SYMBOL_GPL(usb_hcd_amd_remote_wakeup_quirk);
 
@@ -961,7 +969,7 @@ EXPORT_SYMBOL_GPL(usb_disable_xhci_ports
  *
  * Takes care of the handoff between the Pre-OS (i.e. BIOS) and the OS.
  * It signals to the BIOS that the OS wants control of the host controller,
- * and then waits 5 seconds for the BIOS to hand over control.
+ * and then waits 1 second for the BIOS to hand over control.
  * If we timeout, assume the BIOS is broken and take control anyway.
  */
 static void quirk_usb_handoff_xhci(struct pci_dev *pdev)
@@ -1007,9 +1015,9 @@ static void quirk_usb_handoff_xhci(struc
 	if (val & XHCI_HC_BIOS_OWNED) {
 		writel(val | XHCI_HC_OS_OWNED, base + ext_cap_offset);
 
-		/* Wait for 5 seconds with 10 microsecond polling interval */
+		/* Wait for 1 second with 10 microsecond polling interval */
 		timeout = handshake(base + ext_cap_offset, XHCI_HC_BIOS_OWNED,
-				0, 5000, 10);
+				0, 1000000, 10);
 
 		/* Assume a buggy BIOS and take HC ownership anyway */
 		if (timeout) {
@@ -1038,7 +1046,7 @@ hc_init:
 	 * operational or runtime registers.  Wait 5 seconds and no more.
 	 */
 	timeout = handshake(op_reg_base + XHCI_STS_OFFSET, XHCI_STS_CNR, 0,
-			5000, 10);
+			5000000, 10);
 	/* Assume a buggy HC and start HC initialization anyway */
 	if (timeout) {
 		val = readl(op_reg_base + XHCI_STS_OFFSET);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/host/r8a66597-hcd.c linux-libre-4.4.107-gnu/drivers/usb/host/r8a66597-hcd.c
--- linux-libre-4.4-gnu/drivers/usb/host/r8a66597-hcd.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/host/r8a66597-hcd.c	2017-12-20 04:05:01.000000000 -0500
@@ -1269,7 +1269,7 @@ static void set_td_timer(struct r8a66597
 			time = 30;
 			break;
 		default:
-			time = 300;
+			time = 50;
 			break;
 		}
 
@@ -1785,6 +1785,7 @@ static void r8a66597_td_timer(unsigned l
 		pipe = td->pipe;
 		pipe_stop(r8a66597, pipe);
 
+		/* Select a different address or endpoint */
 		new_td = td;
 		do {
 			list_move_tail(&new_td->queue,
@@ -1794,7 +1795,8 @@ static void r8a66597_td_timer(unsigned l
 				new_td = td;
 				break;
 			}
-		} while (td != new_td && td->address == new_td->address);
+		} while (td != new_td && td->address == new_td->address &&
+			td->pipe->info.epnum == new_td->pipe->info.epnum);
 
 		start_transfer(r8a66597, new_td);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/host/uhci-pci.c linux-libre-4.4.107-gnu/drivers/usb/host/uhci-pci.c
--- linux-libre-4.4-gnu/drivers/usb/host/uhci-pci.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/host/uhci-pci.c	2017-12-20 04:05:01.000000000 -0500
@@ -129,6 +129,10 @@ static int uhci_pci_init(struct usb_hcd
 	if (to_pci_dev(uhci_dev(uhci))->vendor == PCI_VENDOR_ID_HP)
 		uhci->wait_for_hp = 1;
 
+	/* Intel controllers use non-PME wakeup signalling */
+	if (to_pci_dev(uhci_dev(uhci))->vendor == PCI_VENDOR_ID_INTEL)
+		device_set_run_wake(uhci_dev(uhci), 1);
+
 	/* Set up pointers to PCI-specific functions */
 	uhci->reset_hc = uhci_pci_reset_hc;
 	uhci->check_and_reset_hc = uhci_pci_check_and_reset_hc;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/host/xhci.c linux-libre-4.4.107-gnu/drivers/usb/host/xhci.c
--- linux-libre-4.4-gnu/drivers/usb/host/xhci.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/host/xhci.c	2017-12-20 04:05:01.000000000 -0500
@@ -146,7 +146,8 @@ static int xhci_start(struct xhci_hcd *x
 				"waited %u microseconds.\n",
 				XHCI_MAX_HALT_USEC);
 	if (!ret)
-		xhci->xhc_state &= ~(XHCI_STATE_HALTED | XHCI_STATE_DYING);
+		/* clear state flags. Including dying, halted or removing */
+		xhci->xhc_state = 0;
 
 	return ret;
 }
@@ -679,20 +680,23 @@ void xhci_stop(struct usb_hcd *hcd)
 	u32 temp;
 	struct xhci_hcd *xhci = hcd_to_xhci(hcd);
 
-	if (xhci->xhc_state & XHCI_STATE_HALTED)
-		return;
-
 	mutex_lock(&xhci->mutex);
-	spin_lock_irq(&xhci->lock);
-	xhci->xhc_state |= XHCI_STATE_HALTED;
-	xhci->cmd_ring_state = CMD_RING_STATE_STOPPED;
 
-	/* Make sure the xHC is halted for a USB3 roothub
-	 * (xhci_stop() could be called as part of failed init).
-	 */
-	xhci_halt(xhci);
-	xhci_reset(xhci);
-	spin_unlock_irq(&xhci->lock);
+	if (!(xhci->xhc_state & XHCI_STATE_HALTED)) {
+		spin_lock_irq(&xhci->lock);
+
+		xhci->xhc_state |= XHCI_STATE_HALTED;
+		xhci->cmd_ring_state = CMD_RING_STATE_STOPPED;
+		xhci_halt(xhci);
+		xhci_reset(xhci);
+
+		spin_unlock_irq(&xhci->lock);
+	}
+
+	if (!usb_hcd_is_primary_hcd(hcd)) {
+		mutex_unlock(&xhci->mutex);
+		return;
+	}
 
 	xhci_cleanup_msix(xhci);
 
@@ -1103,8 +1107,8 @@ int xhci_resume(struct xhci_hcd *xhci, b
 		/* Resume root hubs only when have pending events. */
 		status = readl(&xhci->op_regs->status);
 		if (status & STS_EINT) {
-			usb_hcd_resume_root_hub(hcd);
 			usb_hcd_resume_root_hub(xhci->shared_hcd);
+			usb_hcd_resume_root_hub(hcd);
 		}
 	}
 
@@ -1119,10 +1123,10 @@ int xhci_resume(struct xhci_hcd *xhci, b
 
 	/* Re-enable port polling. */
 	xhci_dbg(xhci, "%s: starting port polling.\n", __func__);
-	set_bit(HCD_FLAG_POLL_RH, &hcd->flags);
-	usb_hcd_poll_rh_status(hcd);
 	set_bit(HCD_FLAG_POLL_RH, &xhci->shared_hcd->flags);
 	usb_hcd_poll_rh_status(xhci->shared_hcd);
+	set_bit(HCD_FLAG_POLL_RH, &hcd->flags);
+	usb_hcd_poll_rh_status(hcd);
 
 	return retval;
 }
@@ -1549,7 +1553,9 @@ int xhci_urb_dequeue(struct usb_hcd *hcd
 		xhci_dbg_trace(xhci, trace_xhci_dbg_cancel_urb,
 				"HW died, freeing TD.");
 		urb_priv = urb->hcpriv;
-		for (i = urb_priv->td_cnt; i < urb_priv->length; i++) {
+		for (i = urb_priv->td_cnt;
+		     i < urb_priv->length && xhci->devs[urb->dev->slot_id];
+		     i++) {
 			td = urb_priv->td[i];
 			if (!list_empty(&td->td_list))
 				list_del_init(&td->td_list);
@@ -1563,19 +1569,6 @@ int xhci_urb_dequeue(struct usb_hcd *hcd
 		xhci_urb_free_priv(urb_priv);
 		return ret;
 	}
-	if ((xhci->xhc_state & XHCI_STATE_DYING) ||
-			(xhci->xhc_state & XHCI_STATE_HALTED)) {
-		xhci_dbg_trace(xhci, trace_xhci_dbg_cancel_urb,
-				"Ep 0x%x: URB %p to be canceled on "
-				"non-responsive xHCI host.",
-				urb->ep->desc.bEndpointAddress, urb);
-		/* Let the stop endpoint command watchdog timer (which set this
-		 * state) finish cleaning up the endpoint TD lists.  We must
-		 * have caught it in the middle of dropping a lock and giving
-		 * back an URB.
-		 */
-		goto done;
-	}
 
 	ep_index = xhci_get_endpoint_index(&urb->ep->desc);
 	ep = &xhci->devs[urb->dev->slot_id]->eps[ep_index];
@@ -2067,6 +2060,7 @@ static unsigned int xhci_get_block_size(
 	case USB_SPEED_HIGH:
 		return HS_BLOCK;
 	case USB_SPEED_SUPER:
+	case USB_SPEED_SUPER_PLUS:
 		return SS_BLOCK;
 	case USB_SPEED_UNKNOWN:
 	case USB_SPEED_WIRELESS:
@@ -2192,7 +2186,7 @@ static int xhci_check_bw_table(struct xh
 	unsigned int packets_remaining = 0;
 	unsigned int i;
 
-	if (virt_dev->udev->speed == USB_SPEED_SUPER)
+	if (virt_dev->udev->speed >= USB_SPEED_SUPER)
 		return xhci_check_ss_bw(xhci, virt_dev);
 
 	if (virt_dev->udev->speed == USB_SPEED_HIGH) {
@@ -2393,7 +2387,7 @@ void xhci_drop_ep_from_interval_table(st
 	if (xhci_is_async_ep(ep_bw->type))
 		return;
 
-	if (udev->speed == USB_SPEED_SUPER) {
+	if (udev->speed >= USB_SPEED_SUPER) {
 		if (xhci_is_sync_in_ep(ep_bw->type))
 			xhci->devs[udev->slot_id]->bw_table->ss_bw_in -=
 				xhci_get_ss_bw_consumed(ep_bw);
@@ -2431,6 +2425,7 @@ void xhci_drop_ep_from_interval_table(st
 		interval_bw->overhead[HS_OVERHEAD_TYPE] -= 1;
 		break;
 	case USB_SPEED_SUPER:
+	case USB_SPEED_SUPER_PLUS:
 	case USB_SPEED_UNKNOWN:
 	case USB_SPEED_WIRELESS:
 		/* Should never happen because only LS/FS/HS endpoints will get
@@ -2490,6 +2485,7 @@ static void xhci_add_ep_to_interval_tabl
 		interval_bw->overhead[HS_OVERHEAD_TYPE] += 1;
 		break;
 	case USB_SPEED_SUPER:
+	case USB_SPEED_SUPER_PLUS:
 	case USB_SPEED_UNKNOWN:
 	case USB_SPEED_WIRELESS:
 		/* Should never happen because only LS/FS/HS endpoints will get
@@ -2751,7 +2747,8 @@ int xhci_check_bandwidth(struct usb_hcd
 	if (ret <= 0)
 		return ret;
 	xhci = hcd_to_xhci(hcd);
-	if (xhci->xhc_state & XHCI_STATE_DYING)
+	if ((xhci->xhc_state & XHCI_STATE_DYING) ||
+		(xhci->xhc_state & XHCI_STATE_REMOVING))
 		return -ENODEV;
 
 	xhci_dbg(xhci, "%s called for udev %p\n", __func__, udev);
@@ -3798,8 +3795,10 @@ static int xhci_setup_device(struct usb_
 
 	mutex_lock(&xhci->mutex);
 
-	if (xhci->xhc_state)	/* dying or halted */
+	if (xhci->xhc_state) {	/* dying, removing or halted */
+		ret = -ESHUTDOWN;
 		goto out;
+	}
 
 	if (!udev->slot_id) {
 		xhci_dbg_trace(xhci, trace_xhci_dbg_address,
@@ -5059,6 +5058,10 @@ static int __init xhci_hcd_init(void)
 	BUILD_BUG_ON(sizeof(struct xhci_intr_reg) != 8*32/8);
 	/* xhci_run_regs has eight fields and embeds 128 xhci_intr_regs */
 	BUILD_BUG_ON(sizeof(struct xhci_run_regs) != (8+8*128)*32/8);
+
+	if (usb_disabled())
+		return -ENODEV;
+
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/host/xhci-dbg.c linux-libre-4.4.107-gnu/drivers/usb/host/xhci-dbg.c
--- linux-libre-4.4-gnu/drivers/usb/host/xhci-dbg.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/host/xhci-dbg.c	2017-12-20 04:05:01.000000000 -0500
@@ -111,7 +111,7 @@ static void xhci_print_cap_regs(struct x
 	xhci_dbg(xhci, "RTSOFF 0x%x:\n", temp & RTSOFF_MASK);
 
 	/* xhci 1.1 controllers have the HCCPARAMS2 register */
-	if (hci_version > 100) {
+	if (hci_version > 0x100) {
 		temp = readl(&xhci->cap_regs->hcc_params2);
 		xhci_dbg(xhci, "HCC PARAMS2 0x%x:\n", (unsigned int) temp);
 		xhci_dbg(xhci, "  HC %s Force save context capability",
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/host/xhci.h linux-libre-4.4.107-gnu/drivers/usb/host/xhci.h
--- linux-libre-4.4-gnu/drivers/usb/host/xhci.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/host/xhci.h	2017-12-20 04:05:01.000000000 -0500
@@ -312,6 +312,8 @@ struct xhci_op_regs {
 #define XDEV_U2		(0x2 << 5)
 #define XDEV_U3		(0x3 << 5)
 #define XDEV_INACTIVE	(0x6 << 5)
+#define XDEV_POLLING	(0x7 << 5)
+#define XDEV_COMP_MODE  (0xa << 5)
 #define XDEV_RESUME	(0xf << 5)
 /* true: port has power (see HCC_PPC) */
 #define PORT_POWER	(1 << 9)
@@ -1488,7 +1490,7 @@ struct xhci_bus_state {
 
 static inline unsigned int hcd_index(struct usb_hcd *hcd)
 {
-	if (hcd->speed == HCD_USB3)
+	if (hcd->speed >= HCD_USB3)
 		return 0;
 	else
 		return 1;
@@ -1550,7 +1552,8 @@ struct xhci_hcd {
 #define CMD_RING_STATE_STOPPED         (1 << 2)
 	struct list_head        cmd_list;
 	unsigned int		cmd_ring_reserved_trbs;
-	struct timer_list	cmd_timer;
+	struct delayed_work	cmd_timer;
+	struct completion	cmd_ring_stop_completion;
 	struct xhci_command	*current_cmd;
 	struct xhci_ring	*event_ring;
 	struct xhci_erst	erst;
@@ -1596,6 +1599,7 @@ struct xhci_hcd {
  */
 #define XHCI_STATE_DYING	(1 << 0)
 #define XHCI_STATE_HALTED	(1 << 1)
+#define XHCI_STATE_REMOVING	(1 << 2)
 	/* Statistics */
 	int			error_bitmask;
 	unsigned int		quirks;
@@ -1630,6 +1634,7 @@ struct xhci_hcd {
 /* For controllers with a broken beyond repair streams implementation */
 #define XHCI_BROKEN_STREAMS	(1 << 19)
 #define XHCI_PME_STUCK_QUIRK	(1 << 20)
+#define XHCI_MISSING_CAS	(1 << 24)
 	unsigned int		num_active_eps;
 	unsigned int		limit_active_eps;
 	/* There are two roothubs to keep track of bus suspend info for */
@@ -1911,7 +1916,7 @@ void xhci_queue_config_ep_quirk(struct x
 		unsigned int slot_id, unsigned int ep_index,
 		struct xhci_dequeue_state *deq_state);
 void xhci_stop_endpoint_command_watchdog(unsigned long arg);
-void xhci_handle_command_timeout(unsigned long data);
+void xhci_handle_command_timeout(struct work_struct *work);
 
 void xhci_ring_ep_doorbell(struct xhci_hcd *xhci, unsigned int slot_id,
 		unsigned int ep_index, unsigned int stream_id);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/host/xhci-hub.c linux-libre-4.4.107-gnu/drivers/usb/host/xhci-hub.c
--- linux-libre-4.4-gnu/drivers/usb/host/xhci-hub.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/host/xhci-hub.c	2017-12-20 04:05:01.000000000 -0500
@@ -377,6 +377,9 @@ static int xhci_stop_device(struct xhci_
 
 	ret = 0;
 	virt_dev = xhci->devs[slot_id];
+	if (!virt_dev)
+		return -ENODEV;
+
 	cmd = xhci_alloc_command(xhci, false, true, GFP_NOIO);
 	if (!cmd) {
 		xhci_dbg(xhci, "Couldn't allocate command structure.\n");
@@ -391,15 +394,25 @@ static int xhci_stop_device(struct xhci_
 						     GFP_NOWAIT);
 			if (!command) {
 				spin_unlock_irqrestore(&xhci->lock, flags);
-				xhci_free_command(xhci, cmd);
-				return -ENOMEM;
+				ret = -ENOMEM;
+				goto cmd_cleanup;
+			}
 
+			ret = xhci_queue_stop_endpoint(xhci, command, slot_id,
+						       i, suspend);
+			if (ret) {
+				spin_unlock_irqrestore(&xhci->lock, flags);
+				xhci_free_command(xhci, command);
+				goto cmd_cleanup;
 			}
-			xhci_queue_stop_endpoint(xhci, command, slot_id, i,
-						 suspend);
 		}
 	}
-	xhci_queue_stop_endpoint(xhci, cmd, slot_id, 0, suspend);
+	ret = xhci_queue_stop_endpoint(xhci, cmd, slot_id, 0, suspend);
+	if (ret) {
+		spin_unlock_irqrestore(&xhci->lock, flags);
+		goto cmd_cleanup;
+	}
+
 	xhci_ring_cmd_db(xhci);
 	spin_unlock_irqrestore(&xhci->lock, flags);
 
@@ -410,6 +423,8 @@ static int xhci_stop_device(struct xhci_
 		xhci_warn(xhci, "Timeout while waiting for stop endpoint command\n");
 		ret = -ETIME;
 	}
+
+cmd_cleanup:
 	xhci_free_command(xhci, cmd);
 	return ret;
 }
@@ -765,6 +780,9 @@ static u32 xhci_get_port_status(struct u
 			clear_bit(wIndex, &bus_state->resuming_ports);
 
 			set_bit(wIndex, &bus_state->rexit_ports);
+
+			xhci_test_and_clear_bit(xhci, port_array, wIndex,
+						PORT_PLC);
 			xhci_set_link_state(xhci, port_array, wIndex,
 					XDEV_U0);
 
@@ -1154,7 +1172,7 @@ int xhci_hub_control(struct usb_hcd *hcd
 				xhci_set_link_state(xhci, port_array, wIndex,
 							XDEV_RESUME);
 				spin_unlock_irqrestore(&xhci->lock, flags);
-				msleep(20);
+				msleep(USB_RESUME_TIMEOUT);
 				spin_lock_irqsave(&xhci->lock, flags);
 				xhci_set_link_state(xhci, port_array, wIndex,
 							XDEV_U0);
@@ -1343,6 +1361,35 @@ int xhci_bus_suspend(struct usb_hcd *hcd
 	return 0;
 }
 
+/*
+ * Workaround for missing Cold Attach Status (CAS) if device re-plugged in S3.
+ * warm reset a USB3 device stuck in polling or compliance mode after resume.
+ * See Intel 100/c230 series PCH specification update Doc #332692-006 Errata #8
+ */
+static bool xhci_port_missing_cas_quirk(int port_index,
+					     __le32 __iomem **port_array)
+{
+	u32 portsc;
+
+	portsc = readl(port_array[port_index]);
+
+	/* if any of these are set we are not stuck */
+	if (portsc & (PORT_CONNECT | PORT_CAS))
+		return false;
+
+	if (((portsc & PORT_PLS_MASK) != XDEV_POLLING) &&
+	    ((portsc & PORT_PLS_MASK) != XDEV_COMP_MODE))
+		return false;
+
+	/* clear wakeup/change bits, and do a warm port reset */
+	portsc &= ~(PORT_RWC_BITS | PORT_CEC | PORT_WAKE_BITS);
+	portsc |= PORT_WR;
+	writel(portsc, port_array[port_index]);
+	/* flush write */
+	readl(port_array[port_index]);
+	return true;
+}
+
 int xhci_bus_resume(struct usb_hcd *hcd)
 {
 	struct xhci_hcd	*xhci = hcd_to_xhci(hcd);
@@ -1380,6 +1427,14 @@ int xhci_bus_resume(struct usb_hcd *hcd)
 		u32 temp;
 
 		temp = readl(port_array[port_index]);
+
+		/* warm reset CAS limited ports stuck in polling/compliance */
+		if ((xhci->quirks & XHCI_MISSING_CAS) &&
+		    (hcd->speed >= HCD_USB3) &&
+		    xhci_port_missing_cas_quirk(port_index, port_array)) {
+			xhci_dbg(xhci, "reset stuck port %d\n", port_index);
+			continue;
+		}
 		if (DEV_SUPERSPEED_ANY(temp))
 			temp &= ~(PORT_RWC_BITS | PORT_CEC | PORT_WAKE_BITS);
 		else
@@ -1398,7 +1453,7 @@ int xhci_bus_resume(struct usb_hcd *hcd)
 
 	if (need_usb2_u3_exit) {
 		spin_unlock_irqrestore(&xhci->lock, flags);
-		msleep(20);
+		msleep(USB_RESUME_TIMEOUT);
 		spin_lock_irqsave(&xhci->lock, flags);
 	}
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/host/xhci-mem.c linux-libre-4.4.107-gnu/drivers/usb/host/xhci-mem.c
--- linux-libre-4.4-gnu/drivers/usb/host/xhci-mem.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/host/xhci-mem.c	2017-12-20 04:05:01.000000000 -0500
@@ -964,6 +964,47 @@ void xhci_free_virt_device(struct xhci_h
 	xhci->devs[slot_id] = NULL;
 }
 
+/*
+ * Free a virt_device structure.
+ * If the virt_device added a tt_info (a hub) and has children pointing to
+ * that tt_info, then free the child first. Recursive.
+ * We can't rely on udev at this point to find child-parent relationships.
+ */
+void xhci_free_virt_devices_depth_first(struct xhci_hcd *xhci, int slot_id)
+{
+	struct xhci_virt_device *vdev;
+	struct list_head *tt_list_head;
+	struct xhci_tt_bw_info *tt_info, *next;
+	int i;
+
+	vdev = xhci->devs[slot_id];
+	if (!vdev)
+		return;
+
+	if (vdev->real_port == 0 ||
+			vdev->real_port > HCS_MAX_PORTS(xhci->hcs_params1)) {
+		xhci_dbg(xhci, "Bad vdev->real_port.\n");
+		goto out;
+	}
+
+	tt_list_head = &(xhci->rh_bw[vdev->real_port - 1].tts);
+	list_for_each_entry_safe(tt_info, next, tt_list_head, tt_list) {
+		/* is this a hub device that added a tt_info to the tts list */
+		if (tt_info->slot_id == slot_id) {
+			/* are any devices using this tt_info? */
+			for (i = 1; i < HCS_MAX_SLOTS(xhci->hcs_params1); i++) {
+				vdev = xhci->devs[i];
+				if (vdev && (vdev->tt_info == tt_info))
+					xhci_free_virt_devices_depth_first(
+						xhci, i);
+			}
+		}
+	}
+out:
+	/* we are now at a leaf device */
+	xhci_free_virt_device(xhci, slot_id);
+}
+
 int xhci_alloc_virt_device(struct xhci_hcd *xhci, int slot_id,
 		struct usb_device *udev, gfp_t flags)
 {
@@ -976,10 +1017,9 @@ int xhci_alloc_virt_device(struct xhci_h
 		return 0;
 	}
 
-	xhci->devs[slot_id] = kzalloc(sizeof(*xhci->devs[slot_id]), flags);
-	if (!xhci->devs[slot_id])
+	dev = kzalloc(sizeof(*dev), flags);
+	if (!dev)
 		return 0;
-	dev = xhci->devs[slot_id];
 
 	/* Allocate the (output) device context that will be used in the HC. */
 	dev->out_ctx = xhci_alloc_container_ctx(xhci, XHCI_CTX_TYPE_DEVICE, flags);
@@ -1027,9 +1067,17 @@ int xhci_alloc_virt_device(struct xhci_h
 		 &xhci->dcbaa->dev_context_ptrs[slot_id],
 		 le64_to_cpu(xhci->dcbaa->dev_context_ptrs[slot_id]));
 
+	xhci->devs[slot_id] = dev;
+
 	return 1;
 fail:
-	xhci_free_virt_device(xhci, slot_id);
+
+	if (dev->in_ctx)
+		xhci_free_container_ctx(xhci, dev->in_ctx);
+	if (dev->out_ctx)
+		xhci_free_container_ctx(xhci, dev->out_ctx);
+	kfree(dev);
+
 	return 0;
 }
 
@@ -1072,7 +1120,7 @@ static u32 xhci_find_real_port_number(st
 	struct usb_device *top_dev;
 	struct usb_hcd *hcd;
 
-	if (udev->speed == USB_SPEED_SUPER)
+	if (udev->speed >= USB_SPEED_SUPER)
 		hcd = xhci->shared_hcd;
 	else
 		hcd = xhci->main_hcd;
@@ -1107,6 +1155,7 @@ int xhci_setup_addressable_virt_dev(stru
 	/* 3) Only the control endpoint is valid - one endpoint context */
 	slot_ctx->dev_info |= cpu_to_le32(LAST_CTX(1) | udev->route);
 	switch (udev->speed) {
+	case USB_SPEED_SUPER_PLUS:
 	case USB_SPEED_SUPER:
 		slot_ctx->dev_info |= cpu_to_le32(SLOT_SPEED_SS);
 		max_packets = MAX_PACKET(512);
@@ -1294,6 +1343,7 @@ static unsigned int xhci_get_endpoint_in
 		}
 		/* Fall through - SS and HS isoc/int have same decoding */
 
+	case USB_SPEED_SUPER_PLUS:
 	case USB_SPEED_SUPER:
 		if (usb_endpoint_xfer_int(&ep->desc) ||
 		    usb_endpoint_xfer_isoc(&ep->desc)) {
@@ -1334,7 +1384,7 @@ static unsigned int xhci_get_endpoint_in
 static u32 xhci_get_endpoint_mult(struct usb_device *udev,
 		struct usb_host_endpoint *ep)
 {
-	if (udev->speed != USB_SPEED_SUPER ||
+	if (udev->speed < USB_SPEED_SUPER ||
 			!usb_endpoint_xfer_isoc(&ep->desc))
 		return 0;
 	return ep->ss_ep_comp.bmAttributes;
@@ -1384,7 +1434,7 @@ static u32 xhci_get_max_esit_payload(str
 			usb_endpoint_xfer_bulk(&ep->desc))
 		return 0;
 
-	if (udev->speed == USB_SPEED_SUPER)
+	if (udev->speed >= USB_SPEED_SUPER)
 		return le16_to_cpu(ep->ss_ep_comp.wBytesPerInterval);
 
 	max_packet = GET_MAX_PACKET(usb_endpoint_maxp(&ep->desc));
@@ -1455,6 +1505,7 @@ int xhci_endpoint_init(struct xhci_hcd *
 	max_packet = GET_MAX_PACKET(usb_endpoint_maxp(&ep->desc));
 	max_burst = 0;
 	switch (udev->speed) {
+	case USB_SPEED_SUPER_PLUS:
 	case USB_SPEED_SUPER:
 		/* dig out max burst from ep companion desc */
 		max_burst = ep->ss_ep_comp.bMaxBurst;
@@ -1672,7 +1723,7 @@ static int scratchpad_alloc(struct xhci_
 	xhci->dcbaa->dev_context_ptrs[0] = cpu_to_le64(xhci->scratchpad->sp_dma);
 	for (i = 0; i < num_sp; i++) {
 		dma_addr_t dma;
-		void *buf = dma_alloc_coherent(dev, xhci->page_size, &dma,
+		void *buf = dma_zalloc_coherent(dev, xhci->page_size, &dma,
 				flags);
 		if (!buf)
 			goto fail_sp5;
@@ -1792,7 +1843,7 @@ void xhci_mem_cleanup(struct xhci_hcd *x
 	int size;
 	int i, j, num_ports;
 
-	del_timer_sync(&xhci->cmd_timer);
+	cancel_delayed_work_sync(&xhci->cmd_timer);
 
 	/* Free the Event Ring Segment Table and the actual Event Ring */
 	size = sizeof(struct xhci_erst_entry)*(xhci->erst.num_entries);
@@ -1825,8 +1876,8 @@ void xhci_mem_cleanup(struct xhci_hcd *x
 		}
 	}
 
-	for (i = 1; i < MAX_HC_SLOTS; ++i)
-		xhci_free_virt_device(xhci, i);
+	for (i = HCS_MAX_SLOTS(xhci->hcs_params1); i > 0; i--)
+		xhci_free_virt_devices_depth_first(xhci, i);
 
 	dma_pool_destroy(xhci->segment_pool);
 	xhci->segment_pool = NULL;
@@ -1875,6 +1926,12 @@ no_bw:
 	kfree(xhci->rh_bw);
 	kfree(xhci->ext_caps);
 
+	xhci->usb2_ports = NULL;
+	xhci->usb3_ports = NULL;
+	xhci->port_array = NULL;
+	xhci->rh_bw = NULL;
+	xhci->ext_caps = NULL;
+
 	xhci->page_size = 0;
 	xhci->page_shift = 0;
 	xhci->bus_state[0].bus_suspended = 0;
@@ -2352,9 +2409,9 @@ int xhci_mem_init(struct xhci_hcd *xhci,
 
 	INIT_LIST_HEAD(&xhci->cmd_list);
 
-	/* init command timeout timer */
-	setup_timer(&xhci->cmd_timer, xhci_handle_command_timeout,
-		    (unsigned long)xhci);
+	/* init command timeout work */
+	INIT_DELAYED_WORK(&xhci->cmd_timer, xhci_handle_command_timeout);
+	init_completion(&xhci->cmd_ring_stop_completion);
 
 	page_size = readl(&xhci->op_regs->page_size);
 	xhci_dbg_trace(xhci, trace_xhci_dbg_init,
@@ -2393,7 +2450,7 @@ int xhci_mem_init(struct xhci_hcd *xhci,
 	 * "physically contiguous and 64-byte (cache line) aligned".
 	 */
 	xhci->dcbaa = dma_alloc_coherent(dev, sizeof(*xhci->dcbaa), &dma,
-			GFP_KERNEL);
+			flags);
 	if (!xhci->dcbaa)
 		goto fail;
 	memset(xhci->dcbaa, 0, sizeof *(xhci->dcbaa));
@@ -2450,7 +2507,7 @@ int xhci_mem_init(struct xhci_hcd *xhci,
 		(xhci->cmd_ring->first_seg->dma & (u64) ~CMD_RING_RSVD_BITS) |
 		xhci->cmd_ring->cycle_state;
 	xhci_dbg_trace(xhci, trace_xhci_dbg_init,
-			"// Setting command ring address to 0x%x", val);
+			"// Setting command ring address to 0x%016llx", val_64);
 	xhci_write_64(xhci, val_64, &xhci->op_regs->cmd_ring);
 	xhci_dbg_cmd_ptrs(xhci);
 
@@ -2489,7 +2546,7 @@ int xhci_mem_init(struct xhci_hcd *xhci,
 
 	xhci->erst.entries = dma_alloc_coherent(dev,
 			sizeof(struct xhci_erst_entry) * ERST_NUM_SEGS, &dma,
-			GFP_KERNEL);
+			flags);
 	if (!xhci->erst.entries)
 		goto fail;
 	xhci_dbg_trace(xhci, trace_xhci_dbg_init,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/host/xhci-pci.c linux-libre-4.4.107-gnu/drivers/usb/host/xhci-pci.c
--- linux-libre-4.4-gnu/drivers/usb/host/xhci-pci.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/host/xhci-pci.c	2017-12-20 04:05:01.000000000 -0500
@@ -28,13 +28,16 @@
 #include "xhci.h"
 #include "xhci-trace.h"
 
-#define PORT2_SSIC_CONFIG_REG2	0x883c
+#define SSIC_PORT_NUM		2
+#define SSIC_PORT_CFG2		0x880c
+#define SSIC_PORT_CFG2_OFFSET	0x30
 #define PROG_DONE		(1 << 30)
 #define SSIC_PORT_UNUSED	(1 << 31)
 
 /* Device for a quirk */
 #define PCI_VENDOR_ID_FRESCO_LOGIC	0x1b73
 #define PCI_DEVICE_ID_FRESCO_LOGIC_PDK	0x1000
+#define PCI_DEVICE_ID_FRESCO_LOGIC_FL1009	0x1009
 #define PCI_DEVICE_ID_FRESCO_LOGIC_FL1400	0x1400
 
 #define PCI_VENDOR_ID_ETRON		0x1b6f
@@ -42,9 +45,14 @@
 
 #define PCI_DEVICE_ID_INTEL_LYNXPOINT_XHCI	0x8c31
 #define PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_XHCI	0x9c31
+#define PCI_DEVICE_ID_INTEL_WILDCATPOINT_LP_XHCI	0x9cb1
 #define PCI_DEVICE_ID_INTEL_CHERRYVIEW_XHCI		0x22b5
 #define PCI_DEVICE_ID_INTEL_SUNRISEPOINT_H_XHCI		0xa12f
 #define PCI_DEVICE_ID_INTEL_SUNRISEPOINT_LP_XHCI	0x9d2f
+#define PCI_DEVICE_ID_INTEL_BROXTON_M_XHCI		0x0aa8
+#define PCI_DEVICE_ID_INTEL_BROXTON_B_XHCI		0x1aa8
+#define PCI_DEVICE_ID_INTEL_APL_XHCI			0x5aa8
+#define PCI_DEVICE_ID_INTEL_DNV_XHCI			0x19d0
 
 static const char hcd_name[] = "xhci_hcd";
 
@@ -111,6 +119,10 @@ static void xhci_pci_quirks(struct devic
 		xhci->quirks |= XHCI_TRUST_TX_LENGTH;
 	}
 
+	if (pdev->vendor == PCI_VENDOR_ID_FRESCO_LOGIC &&
+			pdev->device == PCI_DEVICE_ID_FRESCO_LOGIC_FL1009)
+		xhci->quirks |= XHCI_BROKEN_STREAMS;
+
 	if (pdev->vendor == PCI_VENDOR_ID_NEC)
 		xhci->quirks |= XHCI_NEC_HOST;
 
@@ -145,16 +157,27 @@ static void xhci_pci_quirks(struct devic
 		xhci->quirks |= XHCI_SPURIOUS_REBOOT;
 	}
 	if (pdev->vendor == PCI_VENDOR_ID_INTEL &&
-		pdev->device == PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_XHCI) {
+		(pdev->device == PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_XHCI ||
+		 pdev->device == PCI_DEVICE_ID_INTEL_WILDCATPOINT_LP_XHCI)) {
 		xhci->quirks |= XHCI_SPURIOUS_REBOOT;
 		xhci->quirks |= XHCI_SPURIOUS_WAKEUP;
 	}
 	if (pdev->vendor == PCI_VENDOR_ID_INTEL &&
 		(pdev->device == PCI_DEVICE_ID_INTEL_SUNRISEPOINT_LP_XHCI ||
 		 pdev->device == PCI_DEVICE_ID_INTEL_SUNRISEPOINT_H_XHCI ||
-		 pdev->device == PCI_DEVICE_ID_INTEL_CHERRYVIEW_XHCI)) {
+		 pdev->device == PCI_DEVICE_ID_INTEL_CHERRYVIEW_XHCI ||
+		 pdev->device == PCI_DEVICE_ID_INTEL_BROXTON_M_XHCI ||
+		 pdev->device == PCI_DEVICE_ID_INTEL_BROXTON_B_XHCI ||
+		 pdev->device == PCI_DEVICE_ID_INTEL_APL_XHCI ||
+		 pdev->device == PCI_DEVICE_ID_INTEL_DNV_XHCI)) {
 		xhci->quirks |= XHCI_PME_STUCK_QUIRK;
 	}
+	if (pdev->vendor == PCI_VENDOR_ID_INTEL &&
+	    (pdev->device == PCI_DEVICE_ID_INTEL_CHERRYVIEW_XHCI ||
+	     pdev->device == PCI_DEVICE_ID_INTEL_APL_XHCI ||
+	     pdev->device == PCI_DEVICE_ID_INTEL_DNV_XHCI))
+		xhci->quirks |= XHCI_MISSING_CAS;
+
 	if (pdev->vendor == PCI_VENDOR_ID_ETRON &&
 			pdev->device == PCI_DEVICE_ID_EJ168) {
 		xhci->quirks |= XHCI_RESET_ON_RESUME;
@@ -175,6 +198,9 @@ static void xhci_pci_quirks(struct devic
 	if (pdev->vendor == PCI_VENDOR_ID_ASMEDIA &&
 			pdev->device == 0x1042)
 		xhci->quirks |= XHCI_BROKEN_STREAMS;
+	if (pdev->vendor == PCI_VENDOR_ID_ASMEDIA &&
+			pdev->device == 0x1142)
+		xhci->quirks |= XHCI_TRUST_TX_LENGTH;
 
 	if (xhci->quirks & XHCI_RESET_ON_RESUME)
 		xhci_dbg_trace(xhci, trace_xhci_dbg_quirks,
@@ -295,15 +321,17 @@ static void xhci_pci_remove(struct pci_d
 	struct xhci_hcd *xhci;
 
 	xhci = hcd_to_xhci(pci_get_drvdata(dev));
+	xhci->xhc_state |= XHCI_STATE_REMOVING;
 	if (xhci->shared_hcd) {
 		usb_remove_hcd(xhci->shared_hcd);
 		usb_put_hcd(xhci->shared_hcd);
 	}
-	usb_hcd_pci_remove(dev);
 
 	/* Workaround for spurious wakeups at shutdown with HSW */
 	if (xhci->quirks & XHCI_SPURIOUS_WAKEUP)
 		pci_set_power_state(dev, PCI_D3hot);
+
+	usb_hcd_pci_remove(dev);
 }
 
 #ifdef CONFIG_PM
@@ -322,28 +350,36 @@ static void xhci_pme_quirk(struct usb_hc
 	struct pci_dev		*pdev = to_pci_dev(hcd->self.controller);
 	u32 val;
 	void __iomem *reg;
+	int i;
 
 	if (pdev->vendor == PCI_VENDOR_ID_INTEL &&
 		 pdev->device == PCI_DEVICE_ID_INTEL_CHERRYVIEW_XHCI) {
 
-		reg = (void __iomem *) xhci->cap_regs + PORT2_SSIC_CONFIG_REG2;
+		for (i = 0; i < SSIC_PORT_NUM; i++) {
+			reg = (void __iomem *) xhci->cap_regs +
+					SSIC_PORT_CFG2 +
+					i * SSIC_PORT_CFG2_OFFSET;
 
-		/* Notify SSIC that SSIC profile programming is not done */
-		val = readl(reg) & ~PROG_DONE;
-		writel(val, reg);
+			/*
+			 * Notify SSIC that SSIC profile programming
+			 * is not done.
+			 */
+			val = readl(reg) & ~PROG_DONE;
+			writel(val, reg);
 
-		/* Mark SSIC port as unused(suspend) or used(resume) */
-		val = readl(reg);
-		if (suspend)
-			val |= SSIC_PORT_UNUSED;
-		else
-			val &= ~SSIC_PORT_UNUSED;
-		writel(val, reg);
+			/* Mark SSIC port as unused(suspend) or used(resume) */
+			val = readl(reg);
+			if (suspend)
+				val |= SSIC_PORT_UNUSED;
+			else
+				val &= ~SSIC_PORT_UNUSED;
+			writel(val, reg);
 
-		/* Notify SSIC that SSIC profile programming is done */
-		val = readl(reg) | PROG_DONE;
-		writel(val, reg);
-		readl(reg);
+			/* Notify SSIC that SSIC profile programming is done */
+			val = readl(reg) | PROG_DONE;
+			writel(val, reg);
+			readl(reg);
+		}
 	}
 
 	reg = (void __iomem *) xhci->cap_regs + 0x80a4;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/host/xhci-plat.c linux-libre-4.4.107-gnu/drivers/usb/host/xhci-plat.c
--- linux-libre-4.4-gnu/drivers/usb/host/xhci-plat.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/host/xhci-plat.c	2017-12-20 04:05:01.000000000 -0500
@@ -92,7 +92,7 @@ static int xhci_plat_probe(struct platfo
 
 	irq = platform_get_irq(pdev, 0);
 	if (irq < 0)
-		return -ENODEV;
+		return irq;
 
 	/* Try to set 64-bit DMA first */
 	if (WARN_ON(!pdev->dev.dma_mask))
@@ -132,6 +132,9 @@ static int xhci_plat_probe(struct platfo
 		ret = clk_prepare_enable(clk);
 		if (ret)
 			goto put_hcd;
+	} else if (PTR_ERR(clk) == -EPROBE_DEFER) {
+		ret = -EPROBE_DEFER;
+		goto put_hcd;
 	}
 
 	if (of_device_is_compatible(pdev->dev.of_node,
@@ -159,9 +162,6 @@ static int xhci_plat_probe(struct platfo
 			(pdata && pdata->usb3_lpm_capable))
 		xhci->quirks |= XHCI_LPM_SUPPORT;
 
-	if (HCC_MAX_PSA(xhci->hcc_params) >= 4)
-		xhci->shared_hcd->can_do_streams = 1;
-
 	hcd->usb_phy = devm_usb_get_phy_by_phandle(&pdev->dev, "usb-phy", 0);
 	if (IS_ERR(hcd->usb_phy)) {
 		ret = PTR_ERR(hcd->usb_phy);
@@ -178,6 +178,9 @@ static int xhci_plat_probe(struct platfo
 	if (ret)
 		goto disable_usb_phy;
 
+	if (HCC_MAX_PSA(xhci->hcc_params) >= 4)
+		xhci->shared_hcd->can_do_streams = 1;
+
 	ret = usb_add_hcd(xhci->shared_hcd, irq, IRQF_SHARED);
 	if (ret)
 		goto dealloc_usb2_hcd;
@@ -210,6 +213,8 @@ static int xhci_plat_remove(struct platf
 	struct xhci_hcd	*xhci = hcd_to_xhci(hcd);
 	struct clk *clk = xhci->clk;
 
+	xhci->xhc_state |= XHCI_STATE_REMOVING;
+
 	usb_remove_hcd(xhci->shared_hcd);
 	usb_phy_shutdown(hcd->usb_phy);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/host/xhci-ring.c linux-libre-4.4.107-gnu/drivers/usb/host/xhci-ring.c
--- linux-libre-4.4-gnu/drivers/usb/host/xhci-ring.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/host/xhci-ring.c	2017-12-20 04:05:01.000000000 -0500
@@ -280,15 +280,76 @@ void xhci_ring_cmd_db(struct xhci_hcd *x
 	readl(&xhci->dba->doorbell[0]);
 }
 
-static int xhci_abort_cmd_ring(struct xhci_hcd *xhci)
+static bool xhci_mod_cmd_timer(struct xhci_hcd *xhci, unsigned long delay)
+{
+	return mod_delayed_work(system_wq, &xhci->cmd_timer, delay);
+}
+
+static struct xhci_command *xhci_next_queued_cmd(struct xhci_hcd *xhci)
+{
+	return list_first_entry_or_null(&xhci->cmd_list, struct xhci_command,
+					cmd_list);
+}
+
+/*
+ * Turn all commands on command ring with status set to "aborted" to no-op trbs.
+ * If there are other commands waiting then restart the ring and kick the timer.
+ * This must be called with command ring stopped and xhci->lock held.
+ */
+static void xhci_handle_stopped_cmd_ring(struct xhci_hcd *xhci,
+					 struct xhci_command *cur_cmd)
+{
+	struct xhci_command *i_cmd;
+	u32 cycle_state;
+
+	/* Turn all aborted commands in list to no-ops, then restart */
+	list_for_each_entry(i_cmd, &xhci->cmd_list, cmd_list) {
+
+		if (i_cmd->status != COMP_CMD_ABORT)
+			continue;
+
+		i_cmd->status = COMP_CMD_STOP;
+
+		xhci_dbg(xhci, "Turn aborted command %p to no-op\n",
+			 i_cmd->command_trb);
+		/* get cycle state from the original cmd trb */
+		cycle_state = le32_to_cpu(
+			i_cmd->command_trb->generic.field[3]) &	TRB_CYCLE;
+		/* modify the command trb to no-op command */
+		i_cmd->command_trb->generic.field[0] = 0;
+		i_cmd->command_trb->generic.field[1] = 0;
+		i_cmd->command_trb->generic.field[2] = 0;
+		i_cmd->command_trb->generic.field[3] = cpu_to_le32(
+			TRB_TYPE(TRB_CMD_NOOP) | cycle_state);
+
+		/*
+		 * caller waiting for completion is called when command
+		 *  completion event is received for these no-op commands
+		 */
+	}
+
+	xhci->cmd_ring_state = CMD_RING_STATE_RUNNING;
+
+	/* ring command ring doorbell to restart the command ring */
+	if ((xhci->cmd_ring->dequeue != xhci->cmd_ring->enqueue) &&
+	    !(xhci->xhc_state & XHCI_STATE_DYING)) {
+		xhci->current_cmd = cur_cmd;
+		xhci_mod_cmd_timer(xhci, XHCI_CMD_DEFAULT_TIMEOUT);
+		xhci_ring_cmd_db(xhci);
+	}
+}
+
+/* Must be called with xhci->lock held, releases and aquires lock back */
+static int xhci_abort_cmd_ring(struct xhci_hcd *xhci, unsigned long flags)
 {
 	u64 temp_64;
 	int ret;
 
 	xhci_dbg(xhci, "Abort command ring\n");
 
+	reinit_completion(&xhci->cmd_ring_stop_completion);
+
 	temp_64 = xhci_read_64(xhci, &xhci->op_regs->cmd_ring);
-	xhci->cmd_ring_state = CMD_RING_STATE_ABORTED;
 	xhci_write_64(xhci, temp_64 | CMD_RING_ABORT,
 			&xhci->op_regs->cmd_ring);
 
@@ -308,15 +369,30 @@ static int xhci_abort_cmd_ring(struct xh
 		udelay(1000);
 		ret = xhci_handshake(&xhci->op_regs->cmd_ring,
 				     CMD_RING_RUNNING, 0, 3 * 1000 * 1000);
-		if (ret == 0)
-			return 0;
-
-		xhci_err(xhci, "Stopped the command ring failed, "
-				"maybe the host is dead\n");
-		xhci->xhc_state |= XHCI_STATE_DYING;
-		xhci_quiesce(xhci);
-		xhci_halt(xhci);
-		return -ESHUTDOWN;
+		if (ret < 0) {
+			xhci_err(xhci, "Stopped the command ring failed, "
+				 "maybe the host is dead\n");
+			xhci->xhc_state |= XHCI_STATE_DYING;
+			xhci_quiesce(xhci);
+			xhci_halt(xhci);
+			return -ESHUTDOWN;
+		}
+	}
+	/*
+	 * Writing the CMD_RING_ABORT bit should cause a cmd completion event,
+	 * however on some host hw the CMD_RING_RUNNING bit is correctly cleared
+	 * but the completion event in never sent. Wait 2 secs (arbitrary
+	 * number) to handle those cases after negation of CMD_RING_RUNNING.
+	 */
+	spin_unlock_irqrestore(&xhci->lock, flags);
+	ret = wait_for_completion_timeout(&xhci->cmd_ring_stop_completion,
+					  msecs_to_jiffies(2000));
+	spin_lock_irqsave(&xhci->lock, flags);
+	if (!ret) {
+		xhci_dbg(xhci, "No stop event for abort, ring start fail?\n");
+		xhci_cleanup_command_queue(xhci);
+	} else {
+		xhci_handle_stopped_cmd_ring(xhci, xhci_next_queued_cmd(xhci));
 	}
 
 	return 0;
@@ -780,13 +856,16 @@ static void xhci_kill_endpoint_urbs(stru
 			(ep->ep_state & EP_GETTING_NO_STREAMS)) {
 		int stream_id;
 
-		for (stream_id = 0; stream_id < ep->stream_info->num_streams;
+		for (stream_id = 1; stream_id < ep->stream_info->num_streams;
 				stream_id++) {
+			ring = ep->stream_info->stream_rings[stream_id];
+			if (!ring)
+				continue;
+
 			xhci_dbg_trace(xhci, trace_xhci_dbg_cancel_urb,
 					"Killing URBs for slot ID %u, ep index %u, stream %u",
-					slot_id, ep_index, stream_id + 1);
-			xhci_kill_ring_urbs(xhci,
-					ep->stream_info->stream_rings[stream_id]);
+					slot_id, ep_index, stream_id);
+			xhci_kill_ring_urbs(xhci, ring);
 		}
 	} else {
 		ring = ep->ring;
@@ -837,13 +916,6 @@ void xhci_stop_endpoint_command_watchdog
 	spin_lock_irqsave(&xhci->lock, flags);
 
 	ep->stop_cmds_pending--;
-	if (xhci->xhc_state & XHCI_STATE_DYING) {
-		xhci_dbg_trace(xhci, trace_xhci_dbg_cancel_urb,
-				"Stop EP timer ran, but another timer marked "
-				"xHCI as DYING, exiting.");
-		spin_unlock_irqrestore(&xhci->lock, flags);
-		return;
-	}
 	if (!(ep->stop_cmds_pending == 0 && (ep->ep_state & EP_HALT_PENDING))) {
 		xhci_dbg_trace(xhci, trace_xhci_dbg_cancel_urb,
 				"Stop EP timer ran, but no command pending, "
@@ -890,7 +962,7 @@ void xhci_stop_endpoint_command_watchdog
 	spin_unlock_irqrestore(&xhci->lock, flags);
 	xhci_dbg_trace(xhci, trace_xhci_dbg_cancel_urb,
 			"Calling usb_hc_died()");
-	usb_hc_died(xhci_to_hcd(xhci)->primary_hcd);
+	usb_hc_died(xhci_to_hcd(xhci));
 	xhci_dbg_trace(xhci, trace_xhci_dbg_cancel_urb,
 			"xHCI host controller is dead.");
 }
@@ -1195,93 +1267,62 @@ void xhci_cleanup_command_queue(struct x
 		xhci_complete_del_and_free_cmd(cur_cmd, COMP_CMD_ABORT);
 }
 
-/*
- * Turn all commands on command ring with status set to "aborted" to no-op trbs.
- * If there are other commands waiting then restart the ring and kick the timer.
- * This must be called with command ring stopped and xhci->lock held.
- */
-static void xhci_handle_stopped_cmd_ring(struct xhci_hcd *xhci,
-					 struct xhci_command *cur_cmd)
-{
-	struct xhci_command *i_cmd, *tmp_cmd;
-	u32 cycle_state;
-
-	/* Turn all aborted commands in list to no-ops, then restart */
-	list_for_each_entry_safe(i_cmd, tmp_cmd, &xhci->cmd_list,
-				 cmd_list) {
-
-		if (i_cmd->status != COMP_CMD_ABORT)
-			continue;
-
-		i_cmd->status = COMP_CMD_STOP;
-
-		xhci_dbg(xhci, "Turn aborted command %p to no-op\n",
-			 i_cmd->command_trb);
-		/* get cycle state from the original cmd trb */
-		cycle_state = le32_to_cpu(
-			i_cmd->command_trb->generic.field[3]) &	TRB_CYCLE;
-		/* modify the command trb to no-op command */
-		i_cmd->command_trb->generic.field[0] = 0;
-		i_cmd->command_trb->generic.field[1] = 0;
-		i_cmd->command_trb->generic.field[2] = 0;
-		i_cmd->command_trb->generic.field[3] = cpu_to_le32(
-			TRB_TYPE(TRB_CMD_NOOP) | cycle_state);
-
-		/*
-		 * caller waiting for completion is called when command
-		 *  completion event is received for these no-op commands
-		 */
-	}
-
-	xhci->cmd_ring_state = CMD_RING_STATE_RUNNING;
-
-	/* ring command ring doorbell to restart the command ring */
-	if ((xhci->cmd_ring->dequeue != xhci->cmd_ring->enqueue) &&
-	    !(xhci->xhc_state & XHCI_STATE_DYING)) {
-		xhci->current_cmd = cur_cmd;
-		mod_timer(&xhci->cmd_timer, jiffies + XHCI_CMD_DEFAULT_TIMEOUT);
-		xhci_ring_cmd_db(xhci);
-	}
-	return;
-}
-
-
-void xhci_handle_command_timeout(unsigned long data)
+void xhci_handle_command_timeout(struct work_struct *work)
 {
 	struct xhci_hcd *xhci;
 	int ret;
 	unsigned long flags;
 	u64 hw_ring_state;
-	struct xhci_command *cur_cmd = NULL;
-	xhci = (struct xhci_hcd *) data;
 
-	/* mark this command to be cancelled */
+	xhci = container_of(to_delayed_work(work), struct xhci_hcd, cmd_timer);
+
 	spin_lock_irqsave(&xhci->lock, flags);
-	if (xhci->current_cmd) {
-		cur_cmd = xhci->current_cmd;
-		cur_cmd->status = COMP_CMD_ABORT;
-	}
 
+	/*
+	 * If timeout work is pending, or current_cmd is NULL, it means we
+	 * raced with command completion. Command is handled so just return.
+	 */
+	if (!xhci->current_cmd || delayed_work_pending(&xhci->cmd_timer)) {
+		spin_unlock_irqrestore(&xhci->lock, flags);
+		return;
+	}
+	/* mark this command to be cancelled */
+	xhci->current_cmd->status = COMP_CMD_ABORT;
 
 	/* Make sure command ring is running before aborting it */
 	hw_ring_state = xhci_read_64(xhci, &xhci->op_regs->cmd_ring);
 	if ((xhci->cmd_ring_state & CMD_RING_STATE_RUNNING) &&
 	    (hw_ring_state & CMD_RING_RUNNING))  {
-
-		spin_unlock_irqrestore(&xhci->lock, flags);
+		/* Prevent new doorbell, and start command abort */
+		xhci->cmd_ring_state = CMD_RING_STATE_ABORTED;
 		xhci_dbg(xhci, "Command timeout\n");
-		ret = xhci_abort_cmd_ring(xhci);
+		ret = xhci_abort_cmd_ring(xhci, flags);
 		if (unlikely(ret == -ESHUTDOWN)) {
 			xhci_err(xhci, "Abort command ring failed\n");
 			xhci_cleanup_command_queue(xhci);
+			spin_unlock_irqrestore(&xhci->lock, flags);
 			usb_hc_died(xhci_to_hcd(xhci)->primary_hcd);
 			xhci_dbg(xhci, "xHCI host controller is dead.\n");
+
+			return;
 		}
-		return;
+
+		goto time_out_completed;
 	}
+
+	/* host removed. Bail out */
+	if (xhci->xhc_state & XHCI_STATE_REMOVING) {
+		xhci_dbg(xhci, "host removed, ring start fail?\n");
+		xhci_cleanup_command_queue(xhci);
+
+		goto time_out_completed;
+	}
+
 	/* command timeout on stopped ring, ring can't be aborted */
 	xhci_dbg(xhci, "Command timeout on stopped ring\n");
 	xhci_handle_stopped_cmd_ring(xhci, xhci->current_cmd);
+
+time_out_completed:
 	spin_unlock_irqrestore(&xhci->lock, flags);
 	return;
 }
@@ -1314,13 +1355,7 @@ static void handle_cmd_completion(struct
 
 	cmd = list_entry(xhci->cmd_list.next, struct xhci_command, cmd_list);
 
-	if (cmd->command_trb != xhci->cmd_ring->dequeue) {
-		xhci_err(xhci,
-			 "Command completion event does not match command\n");
-		return;
-	}
-
-	del_timer(&xhci->cmd_timer);
+	cancel_delayed_work(&xhci->cmd_timer);
 
 	trace_xhci_cmd_completion(cmd_trb, (struct xhci_generic_trb *) event);
 
@@ -1328,9 +1363,16 @@ static void handle_cmd_completion(struct
 
 	/* If CMD ring stopped we own the trbs between enqueue and dequeue */
 	if (cmd_comp_code == COMP_CMD_STOP) {
-		xhci_handle_stopped_cmd_ring(xhci, cmd);
+		complete_all(&xhci->cmd_ring_stop_completion);
+		return;
+	}
+
+	if (cmd->command_trb != xhci->cmd_ring->dequeue) {
+		xhci_err(xhci,
+			 "Command completion event does not match command\n");
 		return;
 	}
+
 	/*
 	 * Host aborted the command ring, check if the current command was
 	 * supposed to be aborted, otherwise continue normally.
@@ -1339,8 +1381,11 @@ static void handle_cmd_completion(struct
 	 */
 	if (cmd_comp_code == COMP_CMD_ABORT) {
 		xhci->cmd_ring_state = CMD_RING_STATE_STOPPED;
-		if (cmd->status == COMP_CMD_ABORT)
+		if (cmd->status == COMP_CMD_ABORT) {
+			if (xhci->current_cmd == cmd)
+				xhci->current_cmd = NULL;
 			goto event_handled;
+		}
 	}
 
 	cmd_type = TRB_FIELD_TO_TYPE(le32_to_cpu(cmd_trb->generic.field[3]));
@@ -1401,7 +1446,9 @@ static void handle_cmd_completion(struct
 	if (cmd->cmd_list.next != &xhci->cmd_list) {
 		xhci->current_cmd = list_entry(cmd->cmd_list.next,
 					       struct xhci_command, cmd_list);
-		mod_timer(&xhci->cmd_timer, jiffies + XHCI_CMD_DEFAULT_TIMEOUT);
+		xhci_mod_cmd_timer(xhci, XHCI_CMD_DEFAULT_TIMEOUT);
+	} else if (xhci->current_cmd == cmd) {
+		xhci->current_cmd = NULL;
 	}
 
 event_handled:
@@ -2192,10 +2239,6 @@ static int process_bulk_intr_td(struct x
 		}
 	/* Fast path - was this the last TRB in the TD for this URB? */
 	} else if (event_trb == td->last_trb) {
-		if (td->urb_length_set && trb_comp_code == COMP_SHORT_TX)
-			return finish_td(xhci, td, event_trb, event, ep,
-					 status, false);
-
 		if (EVENT_TRB_LEN(le32_to_cpu(event->transfer_len)) != 0) {
 			td->urb->actual_length =
 				td->urb->transfer_buffer_length -
@@ -2247,12 +2290,6 @@ static int process_bulk_intr_td(struct x
 			td->urb->actual_length +=
 				TRB_LEN(le32_to_cpu(cur_trb->generic.field[2])) -
 				EVENT_TRB_LEN(le32_to_cpu(event->transfer_len));
-
-		if (trb_comp_code == COMP_SHORT_TX) {
-			xhci_dbg(xhci, "mid bulk/intr SP, wait for last TRB event\n");
-			td->urb_length_set = true;
-			return 0;
-		}
 	}
 
 	return finish_td(xhci, td, event_trb, event, ep, status, false);
@@ -2737,7 +2774,8 @@ hw_died:
 		writel(irq_pending, &xhci->ir_set->irq_pending);
 	}
 
-	if (xhci->xhc_state & XHCI_STATE_DYING) {
+	if (xhci->xhc_state & XHCI_STATE_DYING ||
+	    xhci->xhc_state & XHCI_STATE_HALTED) {
 		xhci_dbg(xhci, "xHCI dying, ignoring interrupt. "
 				"Shouldn't IRQs be disabled?\n");
 		/* Clear the event handler busy flag (RW1C);
@@ -3567,7 +3605,7 @@ static unsigned int xhci_get_burst_count
 {
 	unsigned int max_burst;
 
-	if (xhci->hci_version < 0x100 || udev->speed != USB_SPEED_SUPER)
+	if (xhci->hci_version < 0x100 || udev->speed < USB_SPEED_SUPER)
 		return 0;
 
 	max_burst = urb->ep->ss_ep_comp.bMaxBurst;
@@ -3593,6 +3631,7 @@ static unsigned int xhci_get_last_burst_
 		return 0;
 
 	switch (udev->speed) {
+	case USB_SPEED_SUPER_PLUS:
 	case USB_SPEED_SUPER:
 		/* bMaxBurst is zero based: 0 means 1 packet per burst */
 		max_burst = urb->ep->ss_ep_comp.bMaxBurst;
@@ -4018,7 +4057,8 @@ static int queue_command(struct xhci_hcd
 	int reserved_trbs = xhci->cmd_ring_reserved_trbs;
 	int ret;
 
-	if (xhci->xhc_state) {
+	if ((xhci->xhc_state & XHCI_STATE_DYING) ||
+		(xhci->xhc_state & XHCI_STATE_HALTED)) {
 		xhci_dbg(xhci, "xHCI dying or halted, can't queue_command\n");
 		return -ESHUTDOWN;
 	}
@@ -4041,9 +4081,9 @@ static int queue_command(struct xhci_hcd
 
 	/* if there are no other commands queued we start the timeout timer */
 	if (xhci->cmd_list.next == &cmd->cmd_list &&
-	    !timer_pending(&xhci->cmd_timer)) {
+	    !delayed_work_pending(&xhci->cmd_timer)) {
 		xhci->current_cmd = cmd;
-		mod_timer(&xhci->cmd_timer, jiffies + XHCI_CMD_DEFAULT_TIMEOUT);
+		xhci_mod_cmd_timer(xhci, XHCI_CMD_DEFAULT_TIMEOUT);
 	}
 
 	queue_trb(xhci, xhci->cmd_ring, false, field1, field2, field3,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/misc/idmouse.c linux-libre-4.4.107-gnu/drivers/usb/misc/idmouse.c
--- linux-libre-4.4-gnu/drivers/usb/misc/idmouse.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/misc/idmouse.c	2017-12-20 04:05:01.000000000 -0500
@@ -346,6 +346,9 @@ static int idmouse_probe(struct usb_inte
 	if (iface_desc->desc.bInterfaceClass != 0x0A)
 		return -ENODEV;
 
+	if (iface_desc->desc.bNumEndpoints < 1)
+		return -ENODEV;
+
 	/* allocate memory for our device state and initialize it */
 	dev = kzalloc(sizeof(*dev), GFP_KERNEL);
 	if (dev == NULL)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/misc/iowarrior.c linux-libre-4.4.107-gnu/drivers/usb/misc/iowarrior.c
--- linux-libre-4.4-gnu/drivers/usb/misc/iowarrior.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/misc/iowarrior.c	2017-12-20 04:05:01.000000000 -0500
@@ -557,7 +557,7 @@ static long iowarrior_ioctl(struct file
 			info.revision = le16_to_cpu(dev->udev->descriptor.bcdDevice);
 
 			/* 0==UNKNOWN, 1==LOW(usb1.1) ,2=FULL(usb1.1), 3=HIGH(usb2.0) */
-			info.speed = le16_to_cpu(dev->udev->speed);
+			info.speed = dev->udev->speed;
 			info.if_num = dev->interface->cur_altsetting->desc.bInterfaceNumber;
 			info.report_size = dev->report_size;
 
@@ -797,6 +797,21 @@ static int iowarrior_probe(struct usb_in
 			/* this one will match for the IOWarrior56 only */
 			dev->int_out_endpoint = endpoint;
 	}
+
+	if (!dev->int_in_endpoint) {
+		dev_err(&interface->dev, "no interrupt-in endpoint found\n");
+		retval = -ENODEV;
+		goto error;
+	}
+
+	if (dev->product_id == USB_DEVICE_ID_CODEMERCS_IOW56) {
+		if (!dev->int_out_endpoint) {
+			dev_err(&interface->dev, "no interrupt-out endpoint found\n");
+			retval = -ENODEV;
+			goto error;
+		}
+	}
+
 	/* we have to check the report_size often, so remember it in the endianness suitable for our machine */
 	dev->report_size = usb_endpoint_maxp(dev->int_in_endpoint);
 	if ((dev->interface->cur_altsetting->desc.bInterfaceNumber == 0) &&
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/misc/legousbtower.c linux-libre-4.4.107-gnu/drivers/usb/misc/legousbtower.c
--- linux-libre-4.4-gnu/drivers/usb/misc/legousbtower.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/misc/legousbtower.c	2017-12-20 04:05:01.000000000 -0500
@@ -317,9 +317,16 @@ static int tower_open (struct inode *ino
 	int subminor;
 	int retval = 0;
 	struct usb_interface *interface;
-	struct tower_reset_reply reset_reply;
+	struct tower_reset_reply *reset_reply;
 	int result;
 
+	reset_reply = kmalloc(sizeof(*reset_reply), GFP_KERNEL);
+
+	if (!reset_reply) {
+		retval = -ENOMEM;
+		goto exit;
+	}
+
 	nonseekable_open(inode, file);
 	subminor = iminor(inode);
 
@@ -364,8 +371,8 @@ static int tower_open (struct inode *ino
 				  USB_TYPE_VENDOR | USB_DIR_IN | USB_RECIP_DEVICE,
 				  0,
 				  0,
-				  &reset_reply,
-				  sizeof(reset_reply),
+				  reset_reply,
+				  sizeof(*reset_reply),
 				  1000);
 	if (result < 0) {
 		dev_err(&dev->udev->dev,
@@ -406,6 +413,7 @@ unlock_exit:
 	mutex_unlock(&dev->lock);
 
 exit:
+	kfree(reset_reply);
 	return retval;
 }
 
@@ -808,7 +816,7 @@ static int tower_probe (struct usb_inter
 	struct lego_usb_tower *dev = NULL;
 	struct usb_host_interface *iface_desc;
 	struct usb_endpoint_descriptor* endpoint;
-	struct tower_get_version_reply get_version_reply;
+	struct tower_get_version_reply *get_version_reply = NULL;
 	int i;
 	int retval = -ENOMEM;
 	int result;
@@ -898,23 +906,12 @@ static int tower_probe (struct usb_inter
 	dev->interrupt_in_interval = interrupt_in_interval ? interrupt_in_interval : dev->interrupt_in_endpoint->bInterval;
 	dev->interrupt_out_interval = interrupt_out_interval ? interrupt_out_interval : dev->interrupt_out_endpoint->bInterval;
 
-	/* we can register the device now, as it is ready */
-	usb_set_intfdata (interface, dev);
-
-	retval = usb_register_dev (interface, &tower_class);
+	get_version_reply = kmalloc(sizeof(*get_version_reply), GFP_KERNEL);
 
-	if (retval) {
-		/* something prevented us from registering this driver */
-		dev_err(idev, "Not able to get a minor for this device.\n");
-		usb_set_intfdata (interface, NULL);
+	if (!get_version_reply) {
+		retval = -ENOMEM;
 		goto error;
 	}
-	dev->minor = interface->minor;
-
-	/* let the user know what node this device is now attached to */
-	dev_info(&interface->dev, "LEGO USB Tower #%d now attached to major "
-		 "%d minor %d\n", (dev->minor - LEGO_USB_TOWER_MINOR_BASE),
-		 USB_MAJOR, dev->minor);
 
 	/* get the firmware version and log it */
 	result = usb_control_msg (udev,
@@ -923,24 +920,44 @@ static int tower_probe (struct usb_inter
 				  USB_TYPE_VENDOR | USB_DIR_IN | USB_RECIP_DEVICE,
 				  0,
 				  0,
-				  &get_version_reply,
-				  sizeof(get_version_reply),
+				  get_version_reply,
+				  sizeof(*get_version_reply),
 				  1000);
 	if (result < 0) {
 		dev_err(idev, "LEGO USB Tower get version control request failed\n");
 		retval = result;
 		goto error;
 	}
-	dev_info(&interface->dev, "LEGO USB Tower firmware version is %d.%d "
-		 "build %d\n", get_version_reply.major,
-		 get_version_reply.minor,
-		 le16_to_cpu(get_version_reply.build_no));
+	dev_info(&interface->dev,
+		 "LEGO USB Tower firmware version is %d.%d build %d\n",
+		 get_version_reply->major,
+		 get_version_reply->minor,
+		 le16_to_cpu(get_version_reply->build_no));
+
+	/* we can register the device now, as it is ready */
+	usb_set_intfdata (interface, dev);
 
+	retval = usb_register_dev (interface, &tower_class);
+
+	if (retval) {
+		/* something prevented us from registering this driver */
+		dev_err(idev, "Not able to get a minor for this device.\n");
+		usb_set_intfdata (interface, NULL);
+		goto error;
+	}
+	dev->minor = interface->minor;
+
+	/* let the user know what node this device is now attached to */
+	dev_info(&interface->dev, "LEGO USB Tower #%d now attached to major "
+		 "%d minor %d\n", (dev->minor - LEGO_USB_TOWER_MINOR_BASE),
+		 USB_MAJOR, dev->minor);
 
 exit:
+	kfree(get_version_reply);
 	return retval;
 
 error:
+	kfree(get_version_reply);
 	tower_delete(dev);
 	return retval;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/misc/lvstest.c linux-libre-4.4.107-gnu/drivers/usb/misc/lvstest.c
--- linux-libre-4.4-gnu/drivers/usb/misc/lvstest.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/misc/lvstest.c	2017-12-20 04:05:01.000000000 -0500
@@ -370,6 +370,10 @@ static int lvs_rh_probe(struct usb_inter
 
 	hdev = interface_to_usbdev(intf);
 	desc = intf->cur_altsetting;
+
+	if (desc->desc.bNumEndpoints < 1)
+		return -ENODEV;
+
 	endpoint = &desc->endpoint[0].desc;
 
 	/* valid only for SS root hub */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/misc/usbtest.c linux-libre-4.4.107-gnu/drivers/usb/misc/usbtest.c
--- linux-libre-4.4-gnu/drivers/usb/misc/usbtest.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/misc/usbtest.c	2017-12-20 04:05:01.000000000 -0500
@@ -135,6 +135,7 @@ get_endpoints(struct usbtest_dev *dev, s
 			case USB_ENDPOINT_XFER_INT:
 				if (dev->info->intr)
 					goto try_intr;
+				continue;
 			case USB_ENDPOINT_XFER_ISOC:
 				if (dev->info->iso)
 					goto try_iso;
@@ -184,12 +185,13 @@ found:
 			return tmp;
 	}
 
-	if (in) {
+	if (in)
 		dev->in_pipe = usb_rcvbulkpipe(udev,
 			in->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
+	if (out)
 		dev->out_pipe = usb_sndbulkpipe(udev,
 			out->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
-	}
+
 	if (iso_in) {
 		dev->iso_in = &iso_in->desc;
 		dev->in_iso_pipe = usb_rcvisocpipe(udev,
@@ -505,6 +507,7 @@ static struct scatterlist *
 alloc_sglist(int nents, int max, int vary, struct usbtest_dev *dev, int pipe)
 {
 	struct scatterlist	*sg;
+	unsigned int		n_size = 0;
 	unsigned		i;
 	unsigned		size = max;
 	unsigned		maxpacket =
@@ -537,7 +540,8 @@ alloc_sglist(int nents, int max, int var
 			break;
 		case 1:
 			for (j = 0; j < size; j++)
-				*buf++ = (u8) ((j % maxpacket) % 63);
+				*buf++ = (u8) (((j + n_size) % maxpacket) % 63);
+			n_size += size;
 			break;
 		}
 
@@ -556,7 +560,6 @@ static void sg_timeout(unsigned long _re
 {
 	struct usb_sg_request	*req = (struct usb_sg_request *) _req;
 
-	req->status = -ETIMEDOUT;
 	usb_sg_cancel(req);
 }
 
@@ -587,8 +590,10 @@ static int perform_sglist(
 		mod_timer(&sg_timer, jiffies +
 				msecs_to_jiffies(SIMPLE_IO_TIMEOUT));
 		usb_sg_wait(req);
-		del_timer_sync(&sg_timer);
-		retval = req->status;
+		if (!del_timer_sync(&sg_timer))
+			retval = -ETIMEDOUT;
+		else
+			retval = req->status;
 
 		/* FIXME check resulting data pattern */
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/misc/uss720.c linux-libre-4.4.107-gnu/drivers/usb/misc/uss720.c
--- linux-libre-4.4-gnu/drivers/usb/misc/uss720.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/misc/uss720.c	2017-12-20 04:05:01.000000000 -0500
@@ -711,6 +711,11 @@ static int uss720_probe(struct usb_inter
 
 	interface = intf->cur_altsetting;
 
+	if (interface->desc.bNumEndpoints < 3) {
+		usb_put_dev(usbdev);
+		return -ENODEV;
+	}
+
 	/*
 	 * Allocate parport interface 
 	 */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/musb/blackfin.c linux-libre-4.4.107-gnu/drivers/usb/musb/blackfin.c
--- linux-libre-4.4-gnu/drivers/usb/musb/blackfin.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/musb/blackfin.c	2017-12-20 04:05:01.000000000 -0500
@@ -469,6 +469,7 @@ static const struct musb_platform_ops bf
 	.init		= bfin_musb_init,
 	.exit		= bfin_musb_exit,
 
+	.fifo_offset	= bfin_fifo_offset,
 	.readb		= bfin_readb,
 	.writeb		= bfin_writeb,
 	.readw		= bfin_readw,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/musb/da8xx.c linux-libre-4.4.107-gnu/drivers/usb/musb/da8xx.c
--- linux-libre-4.4-gnu/drivers/usb/musb/da8xx.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/musb/da8xx.c	2017-12-20 04:05:01.000000000 -0500
@@ -350,7 +350,15 @@ static irqreturn_t da8xx_musb_interrupt(
 			musb->xceiv->otg->state = OTG_STATE_A_WAIT_VRISE;
 			portstate(musb->port1_status |= USB_PORT_STAT_POWER);
 			del_timer(&otg_workaround);
-		} else {
+		} else if (!(musb->int_usb & MUSB_INTR_BABBLE)){
+			/*
+			 * When babble condition happens, drvvbus interrupt
+			 * is also generated. Ignore this drvvbus interrupt
+			 * and let babble interrupt handler recovers the
+			 * controller; otherwise, the host-mode flag is lost
+			 * due to the MUSB_DEV_MODE() call below and babble
+			 * recovery logic will not called.
+			 */
 			musb->is_active = 0;
 			MUSB_DEV_MODE(musb);
 			otg->default_a = 0;
@@ -458,15 +466,11 @@ static int da8xx_musb_exit(struct musb *
 }
 
 static const struct musb_platform_ops da8xx_ops = {
-	.quirks		= MUSB_DMA_CPPI | MUSB_INDEXED_EP,
+	.quirks		= MUSB_INDEXED_EP,
 	.init		= da8xx_musb_init,
 	.exit		= da8xx_musb_exit,
 
 	.fifo_mode	= 2,
-#ifdef CONFIG_USB_TI_CPPI_DMA
-	.dma_init	= cppi_dma_controller_create,
-	.dma_exit	= cppi_dma_controller_destroy,
-#endif
 	.enable		= da8xx_musb_enable,
 	.disable	= da8xx_musb_disable,
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/musb/musb_core.c linux-libre-4.4.107-gnu/drivers/usb/musb/musb_core.c
--- linux-libre-4.4-gnu/drivers/usb/musb/musb_core.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/musb/musb_core.c	2017-12-20 04:05:01.000000000 -0500
@@ -877,7 +877,7 @@ b_host:
 	 */
 	if (int_usb & MUSB_INTR_RESET) {
 		handled = IRQ_HANDLED;
-		if (devctl & MUSB_DEVCTL_HM) {
+		if (is_host_active(musb)) {
 			/*
 			 * When BABBLE happens what we can depends on which
 			 * platform MUSB is running, because some platforms
@@ -887,9 +887,7 @@ b_host:
 			 * drop the session.
 			 */
 			dev_err(musb->controller, "Babble\n");
-
-			if (is_host_active(musb))
-				musb_recover_from_babble(musb);
+			musb_recover_from_babble(musb);
 		} else {
 			dev_dbg(musb->controller, "BUS RESET as %s\n",
 				usb_otg_state_string(musb->xceiv->otg->state));
@@ -2401,7 +2399,8 @@ static void musb_restore_context(struct
 	musb_writew(musb_base, MUSB_INTRTXE, musb->intrtxe);
 	musb_writew(musb_base, MUSB_INTRRXE, musb->intrrxe);
 	musb_writeb(musb_base, MUSB_INTRUSBE, musb->context.intrusbe);
-	musb_writeb(musb_base, MUSB_DEVCTL, musb->context.devctl);
+	if (musb->context.devctl & MUSB_DEVCTL_SESSION)
+		musb_writeb(musb_base, MUSB_DEVCTL, musb->context.devctl);
 
 	for (i = 0; i < musb->config->num_eps; ++i) {
 		struct musb_hw_ep	*hw_ep;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/musb/musb_core.h linux-libre-4.4.107-gnu/drivers/usb/musb/musb_core.h
--- linux-libre-4.4-gnu/drivers/usb/musb/musb_core.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/musb/musb_core.h	2017-12-20 04:05:01.000000000 -0500
@@ -214,6 +214,7 @@ struct musb_platform_ops {
 				dma_addr_t *dma_addr, u32 *len);
 	void	(*pre_root_reset_end)(struct musb *musb);
 	void	(*post_root_reset_end)(struct musb *musb);
+	void	(*clear_ep_rxintr)(struct musb *musb, int epnum);
 };
 
 /*
@@ -612,4 +613,10 @@ static inline void musb_platform_post_ro
 		musb->ops->post_root_reset_end(musb);
 }
 
+static inline void musb_platform_clear_ep_rxintr(struct musb *musb, int epnum)
+{
+	if (musb->ops->clear_ep_rxintr)
+		musb->ops->clear_ep_rxintr(musb, epnum);
+}
+
 #endif	/* __MUSB_CORE_H__ */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/musb/musb_cppi41.c linux-libre-4.4.107-gnu/drivers/usb/musb/musb_cppi41.c
--- linux-libre-4.4-gnu/drivers/usb/musb/musb_cppi41.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/musb/musb_cppi41.c	2017-12-20 04:05:01.000000000 -0500
@@ -250,8 +250,27 @@ static void cppi41_dma_callback(void *pr
 			transferred < cppi41_channel->packet_sz)
 		cppi41_channel->prog_len = 0;
 
-	if (cppi41_channel->is_tx)
-		empty = musb_is_tx_fifo_empty(hw_ep);
+	if (cppi41_channel->is_tx) {
+		u8 type;
+
+		if (is_host_active(musb))
+			type = hw_ep->out_qh->type;
+		else
+			type = hw_ep->ep_in.type;
+
+		if (type == USB_ENDPOINT_XFER_ISOC)
+			/*
+			 * Don't use the early-TX-interrupt workaround below
+			 * for Isoch transfter. Since Isoch are periodic
+			 * transfer, by the time the next transfer is
+			 * scheduled, the current one should be done already.
+			 *
+			 * This avoids audio playback underrun issue.
+			 */
+			empty = true;
+		else
+			empty = musb_is_tx_fifo_empty(hw_ep);
+	}
 
 	if (!cppi41_channel->is_tx || empty) {
 		cppi41_trans_done(cppi41_channel);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/musb/musb_dsps.c linux-libre-4.4.107-gnu/drivers/usb/musb/musb_dsps.c
--- linux-libre-4.4-gnu/drivers/usb/musb/musb_dsps.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/musb/musb_dsps.c	2017-12-20 04:05:01.000000000 -0500
@@ -301,6 +301,17 @@ static void otg_timer(unsigned long _mus
 	spin_unlock_irqrestore(&musb->lock, flags);
 }
 
+void dsps_musb_clear_ep_rxintr(struct musb *musb, int epnum)
+{
+	u32 epintr;
+	struct dsps_glue *glue = dev_get_drvdata(musb->controller->parent);
+	const struct dsps_musb_wrapper *wrp = glue->wrp;
+
+	/* musb->lock might already been held */
+	epintr = (1 << epnum) << wrp->rxep_shift;
+	musb_writel(musb->ctrl_base, wrp->epintr_status, epintr);
+}
+
 static irqreturn_t dsps_interrupt(int irq, void *hci)
 {
 	struct musb  *musb = hci;
@@ -647,6 +658,7 @@ static struct musb_platform_ops dsps_ops
 	.try_idle	= dsps_musb_try_idle,
 	.set_mode	= dsps_musb_set_mode,
 	.recover	= dsps_musb_recover,
+	.clear_ep_rxintr = dsps_musb_clear_ep_rxintr,
 };
 
 static u64 musb_dmamask = DMA_BIT_MASK(32);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/musb/musb_host.c linux-libre-4.4.107-gnu/drivers/usb/musb/musb_host.c
--- linux-libre-4.4-gnu/drivers/usb/musb/musb_host.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/musb/musb_host.c	2017-12-20 04:05:01.000000000 -0500
@@ -138,6 +138,7 @@ static void musb_h_tx_flush_fifo(struct
 				"Could not flush host TX%d fifo: csr: %04x\n",
 				ep->epnum, csr))
 			return;
+		mdelay(1);
 	}
 }
 
@@ -594,14 +595,13 @@ musb_rx_reinit(struct musb *musb, struct
 		musb_writew(ep->regs, MUSB_TXCSR, 0);
 
 	/* scrub all previous state, clearing toggle */
-	} else {
-		csr = musb_readw(ep->regs, MUSB_RXCSR);
-		if (csr & MUSB_RXCSR_RXPKTRDY)
-			WARNING("rx%d, packet/%d ready?\n", ep->epnum,
-				musb_readw(ep->regs, MUSB_RXCOUNT));
-
-		musb_h_flush_rxfifo(ep, MUSB_RXCSR_CLRDATATOG);
 	}
+	csr = musb_readw(ep->regs, MUSB_RXCSR);
+	if (csr & MUSB_RXCSR_RXPKTRDY)
+		WARNING("rx%d, packet/%d ready?\n", ep->epnum,
+			musb_readw(ep->regs, MUSB_RXCOUNT));
+
+	musb_h_flush_rxfifo(ep, MUSB_RXCSR_CLRDATATOG);
 
 	/* target addr and (for multipoint) hub addr/port */
 	if (musb->is_multipoint) {
@@ -662,7 +662,7 @@ static int musb_tx_dma_set_mode_mentor(s
 		csr &= ~(MUSB_TXCSR_AUTOSET | MUSB_TXCSR_DMAMODE);
 		csr |= MUSB_TXCSR_DMAENAB; /* against programmer's guide */
 	}
-	channel->desired_mode = mode;
+	channel->desired_mode = *mode;
 	musb_writew(epio, MUSB_TXCSR, csr);
 
 	return 0;
@@ -995,9 +995,15 @@ static void musb_bulk_nak_timeout(struct
 	if (is_in) {
 		dma = is_dma_capable() ? ep->rx_channel : NULL;
 
-		/* clear nak timeout bit */
+		/*
+		 * Need to stop the transaction by clearing REQPKT first
+		 * then the NAK Timeout bit ref MUSBMHDRC USB 2.0 HIGH-SPEED
+		 * DUAL-ROLE CONTROLLER Programmer's Guide, section 9.2.2
+		 */
 		rx_csr = musb_readw(epio, MUSB_RXCSR);
 		rx_csr |= MUSB_RXCSR_H_WZC_BITS;
+		rx_csr &= ~MUSB_RXCSR_H_REQPKT;
+		musb_writew(epio, MUSB_RXCSR, rx_csr);
 		rx_csr &= ~MUSB_RXCSR_DATAERROR;
 		musb_writew(epio, MUSB_RXCSR, rx_csr);
 
@@ -1551,7 +1557,7 @@ static int musb_rx_dma_iso_cppi41(struct
 				  struct urb *urb,
 				  size_t len)
 {
-	struct dma_channel *channel = hw_ep->tx_channel;
+	struct dma_channel *channel = hw_ep->rx_channel;
 	void __iomem *epio = hw_ep->regs;
 	dma_addr_t *buf;
 	u32 length, res;
@@ -2003,10 +2009,8 @@ void musb_host_rx(struct musb *musb, u8
 				qh->offset,
 				urb->transfer_buffer_length);
 
-			done = musb_rx_dma_in_inventra_cppi41(c, hw_ep, qh,
-							      urb, xfer_len,
-							      iso_err);
-			if (done)
+			if (musb_rx_dma_in_inventra_cppi41(c, hw_ep, qh, urb,
+							   xfer_len, iso_err))
 				goto finish;
 			else
 				dev_err(musb->controller, "error: rx_dma failed\n");
@@ -2387,12 +2391,11 @@ static int musb_cleanup_urb(struct urb *
 	int			is_in = usb_pipein(urb->pipe);
 	int			status = 0;
 	u16			csr;
+	struct dma_channel	*dma = NULL;
 
 	musb_ep_select(regs, hw_end);
 
 	if (is_dma_capable()) {
-		struct dma_channel	*dma;
-
 		dma = is_in ? ep->rx_channel : ep->tx_channel;
 		if (dma) {
 			status = ep->musb->dma_controller->channel_abort(dma);
@@ -2409,10 +2412,9 @@ static int musb_cleanup_urb(struct urb *
 		/* giveback saves bulk toggle */
 		csr = musb_h_flush_rxfifo(ep, 0);
 
-		/* REVISIT we still get an irq; should likely clear the
-		 * endpoint's irq status here to avoid bogus irqs.
-		 * clearing that status is platform-specific...
-		 */
+		/* clear the endpoint's irq status here to avoid bogus irqs */
+		if (is_dma_capable() && dma)
+			musb_platform_clear_ep_rxintr(musb, ep->epnum);
 	} else if (ep->epnum) {
 		musb_h_tx_flush_fifo(ep);
 		csr = musb_readw(epio, MUSB_TXCSR);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/musb/musbhsdma.h linux-libre-4.4.107-gnu/drivers/usb/musb/musbhsdma.h
--- linux-libre-4.4-gnu/drivers/usb/musb/musbhsdma.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/musb/musbhsdma.h	2017-12-20 04:05:01.000000000 -0500
@@ -157,5 +157,5 @@ struct musb_dma_controller {
 	void __iomem			*base;
 	u8				channel_count;
 	u8				used_channels;
-	u8				irq;
+	int				irq;
 };
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/musb/sunxi.c linux-libre-4.4.107-gnu/drivers/usb/musb/sunxi.c
--- linux-libre-4.4-gnu/drivers/usb/musb/sunxi.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/musb/sunxi.c	2017-12-20 04:05:01.000000000 -0500
@@ -320,6 +320,8 @@ static int sunxi_musb_exit(struct musb *
 	if (test_bit(SUNXI_MUSB_FL_HAS_SRAM, &glue->flags))
 		sunxi_sram_release(musb->controller->parent);
 
+	devm_usb_put_phy(glue->dev, glue->xceiv);
+
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/musb/tusb6010_omap.c linux-libre-4.4.107-gnu/drivers/usb/musb/tusb6010_omap.c
--- linux-libre-4.4-gnu/drivers/usb/musb/tusb6010_omap.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/musb/tusb6010_omap.c	2017-12-20 04:05:01.000000000 -0500
@@ -220,6 +220,7 @@ static int tusb_omap_dma_program(struct
 	u32				dma_remaining;
 	int				src_burst, dst_burst;
 	u16				csr;
+	u32				psize;
 	int				ch;
 	s8				dmareq;
 	s8				sync_dev;
@@ -391,15 +392,19 @@ static int tusb_omap_dma_program(struct
 
 	if (chdat->tx) {
 		/* Send transfer_packet_sz packets at a time */
-		musb_writel(ep_conf, TUSB_EP_MAX_PACKET_SIZE_OFFSET,
-			chdat->transfer_packet_sz);
+		psize = musb_readl(ep_conf, TUSB_EP_MAX_PACKET_SIZE_OFFSET);
+		psize &= ~0x7ff;
+		psize |= chdat->transfer_packet_sz;
+		musb_writel(ep_conf, TUSB_EP_MAX_PACKET_SIZE_OFFSET, psize);
 
 		musb_writel(ep_conf, TUSB_EP_TX_OFFSET,
 			TUSB_EP_CONFIG_XFR_SIZE(chdat->transfer_len));
 	} else {
 		/* Receive transfer_packet_sz packets at a time */
-		musb_writel(ep_conf, TUSB_EP_MAX_PACKET_SIZE_OFFSET,
-			chdat->transfer_packet_sz << 16);
+		psize = musb_readl(ep_conf, TUSB_EP_MAX_PACKET_SIZE_OFFSET);
+		psize &= ~(0x7ff << 16);
+		psize |= (chdat->transfer_packet_sz << 16);
+		musb_writel(ep_conf, TUSB_EP_MAX_PACKET_SIZE_OFFSET, psize);
 
 		musb_writel(ep_conf, TUSB_EP_RX_OFFSET,
 			TUSB_EP_CONFIG_XFR_SIZE(chdat->transfer_len));
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/phy/phy-am335x-control.c linux-libre-4.4.107-gnu/drivers/usb/phy/phy-am335x-control.c
--- linux-libre-4.4-gnu/drivers/usb/phy/phy-am335x-control.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/phy/phy-am335x-control.c	2017-12-20 04:05:01.000000000 -0500
@@ -126,10 +126,12 @@ struct phy_control *am335x_get_phy_contr
 		return NULL;
 
 	dev = bus_find_device(&platform_bus_type, NULL, node, match);
+	of_node_put(node);
 	if (!dev)
 		return NULL;
 
 	ctrl_usb = dev_get_drvdata(dev);
+	put_device(dev);
 	if (!ctrl_usb)
 		return NULL;
 	return &ctrl_usb->phy_ctrl;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/phy/phy-isp1301.c linux-libre-4.4.107-gnu/drivers/usb/phy/phy-isp1301.c
--- linux-libre-4.4-gnu/drivers/usb/phy/phy-isp1301.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/phy/phy-isp1301.c	2017-12-20 04:05:01.000000000 -0500
@@ -33,6 +33,12 @@ static const struct i2c_device_id isp130
 };
 MODULE_DEVICE_TABLE(i2c, isp1301_id);
 
+static const struct of_device_id isp1301_of_match[] = {
+	{.compatible = "nxp,isp1301" },
+	{ },
+};
+MODULE_DEVICE_TABLE(of, isp1301_of_match);
+
 static struct i2c_client *isp1301_i2c_client;
 
 static int __isp1301_write(struct isp1301 *isp, u8 reg, u8 value, u8 clear)
@@ -130,6 +136,7 @@ static int isp1301_remove(struct i2c_cli
 static struct i2c_driver isp1301_driver = {
 	.driver = {
 		.name = DRV_NAME,
+		.of_match_table = of_match_ptr(isp1301_of_match),
 	},
 	.probe = isp1301_probe,
 	.remove = isp1301_remove,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/phy/phy-msm-usb.c linux-libre-4.4.107-gnu/drivers/usb/phy/phy-msm-usb.c
--- linux-libre-4.4-gnu/drivers/usb/phy/phy-msm-usb.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/phy/phy-msm-usb.c	2017-12-20 04:05:01.000000000 -0500
@@ -1599,6 +1599,8 @@ static int msm_otg_read_dt(struct platfo
 						&motg->id.nb);
 		if (ret < 0) {
 			dev_err(&pdev->dev, "register ID notifier failed\n");
+			extcon_unregister_notifier(motg->vbus.extcon,
+						   EXTCON_USB, &motg->vbus.nb);
 			return ret;
 		}
 
@@ -1660,15 +1662,6 @@ static int msm_otg_probe(struct platform
 	if (!motg)
 		return -ENOMEM;
 
-	pdata = dev_get_platdata(&pdev->dev);
-	if (!pdata) {
-		if (!np)
-			return -ENXIO;
-		ret = msm_otg_read_dt(pdev, motg);
-		if (ret)
-			return ret;
-	}
-
 	motg->phy.otg = devm_kzalloc(&pdev->dev, sizeof(struct usb_otg),
 				     GFP_KERNEL);
 	if (!motg->phy.otg)
@@ -1710,6 +1703,15 @@ static int msm_otg_probe(struct platform
 	if (!motg->regs)
 		return -ENOMEM;
 
+	pdata = dev_get_platdata(&pdev->dev);
+	if (!pdata) {
+		if (!np)
+			return -ENXIO;
+		ret = msm_otg_read_dt(pdev, motg);
+		if (ret)
+			return ret;
+	}
+
 	/*
 	 * NOTE: The PHYs can be multiplexed between the chipidea controller
 	 * and the dwc3 controller, using a single bit. It is important that
@@ -1717,8 +1719,10 @@ static int msm_otg_probe(struct platform
 	 */
 	if (motg->phy_number) {
 		phy_select = devm_ioremap_nocache(&pdev->dev, USB2_PHY_SEL, 4);
-		if (!phy_select)
-			return -ENOMEM;
+		if (!phy_select) {
+			ret = -ENOMEM;
+			goto unregister_extcon;
+		}
 		/* Enable second PHY with the OTG port */
 		writel(0x1, phy_select);
 	}
@@ -1728,7 +1732,8 @@ static int msm_otg_probe(struct platform
 	motg->irq = platform_get_irq(pdev, 0);
 	if (motg->irq < 0) {
 		dev_err(&pdev->dev, "platform_get_irq failed\n");
-		return motg->irq;
+		ret = motg->irq;
+		goto unregister_extcon;
 	}
 
 	regs[0].supply = "vddcx";
@@ -1737,7 +1742,7 @@ static int msm_otg_probe(struct platform
 
 	ret = devm_regulator_bulk_get(motg->phy.dev, ARRAY_SIZE(regs), regs);
 	if (ret)
-		return ret;
+		goto unregister_extcon;
 
 	motg->vddcx = regs[0].consumer;
 	motg->v3p3  = regs[1].consumer;
@@ -1834,6 +1839,12 @@ disable_clks:
 	clk_disable_unprepare(motg->clk);
 	if (!IS_ERR(motg->core_clk))
 		clk_disable_unprepare(motg->core_clk);
+unregister_extcon:
+	extcon_unregister_notifier(motg->id.extcon,
+				   EXTCON_USB_HOST, &motg->id.nb);
+	extcon_unregister_notifier(motg->vbus.extcon,
+				   EXTCON_USB, &motg->vbus.nb);
+
 	return ret;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/phy/phy-tahvo.c linux-libre-4.4.107-gnu/drivers/usb/phy/phy-tahvo.c
--- linux-libre-4.4-gnu/drivers/usb/phy/phy-tahvo.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/phy/phy-tahvo.c	2017-12-20 04:05:01.000000000 -0500
@@ -368,7 +368,8 @@ static int tahvo_usb_probe(struct platfo
 	tu->extcon = devm_extcon_dev_allocate(&pdev->dev, tahvo_cable);
 	if (IS_ERR(tu->extcon)) {
 		dev_err(&pdev->dev, "failed to allocate memory for extcon\n");
-		return -ENOMEM;
+		ret = PTR_ERR(tu->extcon);
+		goto err_disable_clk;
 	}
 
 	ret = devm_extcon_dev_register(&pdev->dev, tu->extcon);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/renesas_usbhs/common.c linux-libre-4.4.107-gnu/drivers/usb/renesas_usbhs/common.c
--- linux-libre-4.4-gnu/drivers/usb/renesas_usbhs/common.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/renesas_usbhs/common.c	2017-12-20 04:05:01.000000000 -0500
@@ -733,8 +733,10 @@ static int usbhsc_resume(struct device *
 	struct usbhs_priv *priv = dev_get_drvdata(dev);
 	struct platform_device *pdev = usbhs_priv_to_pdev(priv);
 
-	if (!usbhsc_flags_has(priv, USBHSF_RUNTIME_PWCTRL))
+	if (!usbhsc_flags_has(priv, USBHSF_RUNTIME_PWCTRL)) {
 		usbhsc_power_ctrl(priv, 1);
+		usbhs_mod_autonomy_mode(priv);
+	}
 
 	usbhs_platform_call(priv, phy_reset, pdev);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/renesas_usbhs/fifo.c linux-libre-4.4.107-gnu/drivers/usb/renesas_usbhs/fifo.c
--- linux-libre-4.4-gnu/drivers/usb/renesas_usbhs/fifo.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/renesas_usbhs/fifo.c	2017-12-20 04:05:01.000000000 -0500
@@ -190,7 +190,8 @@ static int usbhsf_pkt_handler(struct usb
 		goto __usbhs_pkt_handler_end;
 	}
 
-	ret = func(pkt, &is_done);
+	if (likely(func))
+		ret = func(pkt, &is_done);
 
 	if (is_done)
 		__usbhsf_pkt_del(pkt);
@@ -284,11 +285,26 @@ static void usbhsf_fifo_clear(struct usb
 			      struct usbhs_fifo *fifo)
 {
 	struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe);
+	int ret = 0;
 
-	if (!usbhs_pipe_is_dcp(pipe))
-		usbhsf_fifo_barrier(priv, fifo);
+	if (!usbhs_pipe_is_dcp(pipe)) {
+		/*
+		 * This driver checks the pipe condition first to avoid -EBUSY
+		 * from usbhsf_fifo_barrier() with about 10 msec delay in
+		 * the interrupt handler if the pipe is RX direction and empty.
+		 */
+		if (usbhs_pipe_is_dir_in(pipe))
+			ret = usbhs_pipe_is_accessible(pipe);
+		if (!ret)
+			ret = usbhsf_fifo_barrier(priv, fifo);
+	}
 
-	usbhs_write(priv, fifo->ctr, BCLR);
+	/*
+	 * if non-DCP pipe, this driver should set BCLR when
+	 * usbhsf_fifo_barrier() returns 0.
+	 */
+	if (!ret)
+		usbhs_write(priv, fifo->ctr, BCLR);
 }
 
 static int usbhsf_fifo_rcv_len(struct usbhs_priv *priv,
@@ -807,20 +823,27 @@ static void xfer_work(struct work_struct
 {
 	struct usbhs_pkt *pkt = container_of(work, struct usbhs_pkt, work);
 	struct usbhs_pipe *pipe = pkt->pipe;
-	struct usbhs_fifo *fifo = usbhs_pipe_to_fifo(pipe);
+	struct usbhs_fifo *fifo;
 	struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe);
 	struct dma_async_tx_descriptor *desc;
-	struct dma_chan *chan = usbhsf_dma_chan_get(fifo, pkt);
+	struct dma_chan *chan;
 	struct device *dev = usbhs_priv_to_dev(priv);
 	enum dma_transfer_direction dir;
+	unsigned long flags;
+
+	usbhs_lock(priv, flags);
+	fifo = usbhs_pipe_to_fifo(pipe);
+	if (!fifo)
+		goto xfer_work_end;
 
+	chan = usbhsf_dma_chan_get(fifo, pkt);
 	dir = usbhs_pipe_is_dir_in(pipe) ? DMA_DEV_TO_MEM : DMA_MEM_TO_DEV;
 
 	desc = dmaengine_prep_slave_single(chan, pkt->dma + pkt->actual,
 					pkt->trans, dir,
 					DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
 	if (!desc)
-		return;
+		goto xfer_work_end;
 
 	desc->callback		= usbhsf_dma_complete;
 	desc->callback_param	= pipe;
@@ -828,17 +851,20 @@ static void xfer_work(struct work_struct
 	pkt->cookie = dmaengine_submit(desc);
 	if (pkt->cookie < 0) {
 		dev_err(dev, "Failed to submit dma descriptor\n");
-		return;
+		goto xfer_work_end;
 	}
 
 	dev_dbg(dev, "  %s %d (%d/ %d)\n",
 		fifo->name, usbhs_pipe_number(pipe), pkt->length, pkt->zero);
 
 	usbhs_pipe_running(pipe, 1);
-	usbhsf_dma_start(pipe, fifo);
 	usbhs_pipe_set_trans_count_if_bulk(pipe, pkt->trans);
 	dma_async_issue_pending(chan);
+	usbhsf_dma_start(pipe, fifo);
 	usbhs_pipe_enable(pipe);
+
+xfer_work_end:
+	usbhs_unlock(priv, flags);
 }
 
 /*
@@ -858,7 +884,7 @@ static int usbhsf_dma_prepare_push(struc
 
 	/* use PIO if packet is less than pio_dma_border or pipe is DCP */
 	if ((len < usbhs_get_dparam(priv, pio_dma_border)) ||
-	    usbhs_pipe_is_dcp(pipe))
+	    usbhs_pipe_type_is(pipe, USB_ENDPOINT_XFER_ISOC))
 		goto usbhsf_pio_prepare_push;
 
 	/* check data length if this driver don't use USB-DMAC */
@@ -889,6 +915,7 @@ static int usbhsf_dma_prepare_push(struc
 
 	pkt->trans = len;
 
+	usbhsf_tx_irq_ctrl(pipe, 0);
 	INIT_WORK(&pkt->work, xfer_work);
 	schedule_work(&pkt->work);
 
@@ -962,7 +989,7 @@ static int usbhsf_dma_prepare_pop_with_u
 
 	/* use PIO if packet is less than pio_dma_border or pipe is DCP */
 	if ((pkt->length < usbhs_get_dparam(priv, pio_dma_border)) ||
-	    usbhs_pipe_is_dcp(pipe))
+	    usbhs_pipe_type_is(pipe, USB_ENDPOINT_XFER_ISOC))
 		goto usbhsf_pio_prepare_pop;
 
 	fifo = usbhsf_get_dma_fifo(priv, pkt);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/renesas_usbhs/mod.c linux-libre-4.4.107-gnu/drivers/usb/renesas_usbhs/mod.c
--- linux-libre-4.4-gnu/drivers/usb/renesas_usbhs/mod.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/renesas_usbhs/mod.c	2017-12-20 04:05:01.000000000 -0500
@@ -282,9 +282,16 @@ static irqreturn_t usbhs_interrupt(int i
 	if (usbhs_mod_is_host(priv))
 		usbhs_write(priv, INTSTS1, ~irq_state.intsts1 & INTSTS1_MAGIC);
 
-	usbhs_write(priv, BRDYSTS, ~irq_state.brdysts);
+	/*
+	 * The driver should not clear the xxxSTS after the line of
+	 * "call irq callback functions" because each "if" statement is
+	 * possible to call the callback function for avoiding any side effects.
+	 */
+	if (irq_state.intsts0 & BRDY)
+		usbhs_write(priv, BRDYSTS, ~irq_state.brdysts);
 	usbhs_write(priv, NRDYSTS, ~irq_state.nrdysts);
-	usbhs_write(priv, BEMPSTS, ~irq_state.bempsts);
+	if (irq_state.intsts0 & BEMP)
+		usbhs_write(priv, BEMPSTS, ~irq_state.bempsts);
 
 	/*
 	 * call irq callback functions
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/renesas_usbhs/mod_gadget.c linux-libre-4.4.107-gnu/drivers/usb/renesas_usbhs/mod_gadget.c
--- linux-libre-4.4-gnu/drivers/usb/renesas_usbhs/mod_gadget.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/renesas_usbhs/mod_gadget.c	2017-12-20 04:05:01.000000000 -0500
@@ -37,6 +37,7 @@ struct usbhsg_gpriv;
 struct usbhsg_uep {
 	struct usb_ep		 ep;
 	struct usbhs_pipe	*pipe;
+	spinlock_t		lock;	/* protect the pipe */
 
 	char ep_name[EP_NAME_SIZE];
 
@@ -158,10 +159,14 @@ static void usbhsg_queue_done(struct usb
 	struct usbhs_pipe *pipe = pkt->pipe;
 	struct usbhsg_uep *uep = usbhsg_pipe_to_uep(pipe);
 	struct usbhsg_request *ureq = usbhsg_pkt_to_ureq(pkt);
+	unsigned long flags;
 
 	ureq->req.actual = pkt->actual;
 
-	usbhsg_queue_pop(uep, ureq, 0);
+	usbhs_lock(priv, flags);
+	if (uep)
+		__usbhsg_queue_pop(uep, ureq, 0);
+	usbhs_unlock(priv, flags);
 }
 
 static void usbhsg_queue_push(struct usbhsg_uep *uep,
@@ -582,6 +587,9 @@ static int usbhsg_ep_enable(struct usb_e
 	struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv);
 	struct usbhs_pipe *pipe;
 	int ret = -EIO;
+	unsigned long flags;
+
+	usbhs_lock(priv, flags);
 
 	/*
 	 * if it already have pipe,
@@ -590,7 +598,8 @@ static int usbhsg_ep_enable(struct usb_e
 	if (uep->pipe) {
 		usbhs_pipe_clear(uep->pipe);
 		usbhs_pipe_sequence_data0(uep->pipe);
-		return 0;
+		ret = 0;
+		goto usbhsg_ep_enable_end;
 	}
 
 	pipe = usbhs_pipe_malloc(priv,
@@ -610,24 +619,36 @@ static int usbhsg_ep_enable(struct usb_e
 		 * use dmaengine if possible.
 		 * It will use pio handler if impossible.
 		 */
-		if (usb_endpoint_dir_in(desc))
+		if (usb_endpoint_dir_in(desc)) {
 			pipe->handler = &usbhs_fifo_dma_push_handler;
-		else
+		} else {
 			pipe->handler = &usbhs_fifo_dma_pop_handler;
+			usbhs_xxxsts_clear(priv, BRDYSTS,
+					   usbhs_pipe_number(pipe));
+		}
 
 		ret = 0;
 	}
 
+usbhsg_ep_enable_end:
+	usbhs_unlock(priv, flags);
+
 	return ret;
 }
 
 static int usbhsg_ep_disable(struct usb_ep *ep)
 {
 	struct usbhsg_uep *uep = usbhsg_ep_to_uep(ep);
-	struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep);
+	struct usbhs_pipe *pipe;
+	unsigned long flags;
+	int ret = 0;
 
-	if (!pipe)
-		return -EINVAL;
+	spin_lock_irqsave(&uep->lock, flags);
+	pipe = usbhsg_uep_to_pipe(uep);
+	if (!pipe) {
+		ret = -EINVAL;
+		goto out;
+	}
 
 	usbhsg_pipe_disable(uep);
 	usbhs_pipe_free(pipe);
@@ -635,6 +656,9 @@ static int usbhsg_ep_disable(struct usb_
 	uep->pipe->mod_private	= NULL;
 	uep->pipe		= NULL;
 
+out:
+	spin_unlock_irqrestore(&uep->lock, flags);
+
 	return 0;
 }
 
@@ -684,8 +708,11 @@ static int usbhsg_ep_dequeue(struct usb_
 {
 	struct usbhsg_uep *uep = usbhsg_ep_to_uep(ep);
 	struct usbhsg_request *ureq = usbhsg_req_to_ureq(req);
-	struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep);
+	struct usbhs_pipe *pipe;
+	unsigned long flags;
 
+	spin_lock_irqsave(&uep->lock, flags);
+	pipe = usbhsg_uep_to_pipe(uep);
 	if (pipe)
 		usbhs_pkt_pop(pipe, usbhsg_ureq_to_pkt(ureq));
 
@@ -694,6 +721,7 @@ static int usbhsg_ep_dequeue(struct usb_
 	 * even if the pipe is NULL.
 	 */
 	usbhsg_queue_pop(uep, ureq, -ECONNRESET);
+	spin_unlock_irqrestore(&uep->lock, flags);
 
 	return 0;
 }
@@ -840,10 +868,10 @@ static int usbhsg_try_stop(struct usbhs_
 {
 	struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv);
 	struct usbhs_mod *mod = usbhs_mod_get_current(priv);
-	struct usbhsg_uep *dcp = usbhsg_gpriv_to_dcp(gpriv);
+	struct usbhsg_uep *uep;
 	struct device *dev = usbhs_priv_to_dev(priv);
 	unsigned long flags;
-	int ret = 0;
+	int ret = 0, i;
 
 	/********************  spin lock ********************/
 	usbhs_lock(priv, flags);
@@ -875,7 +903,9 @@ static int usbhsg_try_stop(struct usbhs_
 	usbhs_sys_set_test_mode(priv, 0);
 	usbhs_sys_function_ctrl(priv, 0);
 
-	usbhsg_ep_disable(&dcp->ep);
+	/* disable all eps */
+	usbhsg_for_each_uep_with_dcp(uep, gpriv, i)
+		usbhsg_ep_disable(&uep->ep);
 
 	dev_dbg(dev, "stop gadget\n");
 
@@ -1058,10 +1088,11 @@ int usbhs_mod_gadget_probe(struct usbhs_
 		ret = -ENOMEM;
 		goto usbhs_mod_gadget_probe_err_gpriv;
 	}
+	spin_lock_init(&uep->lock);
 
 	gpriv->transceiver = usb_get_phy(USB_PHY_TYPE_UNDEFINED);
 	dev_info(dev, "%stransceiver found\n",
-		 gpriv->transceiver ? "" : "no ");
+		 !IS_ERR(gpriv->transceiver) ? "" : "no ");
 
 	/*
 	 * CAUTION
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/serial/ark3116.c linux-libre-4.4.107-gnu/drivers/usb/serial/ark3116.c
--- linux-libre-4.4-gnu/drivers/usb/serial/ark3116.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/serial/ark3116.c	2017-12-20 04:05:01.000000000 -0500
@@ -99,10 +99,17 @@ static int ark3116_read_reg(struct usb_s
 				 usb_rcvctrlpipe(serial->dev, 0),
 				 0xfe, 0xc0, 0, reg,
 				 buf, 1, ARK_TIMEOUT);
-	if (result < 0)
+	if (result < 1) {
+		dev_err(&serial->interface->dev,
+				"failed to read register %u: %d\n",
+				reg, result);
+		if (result >= 0)
+			result = -EIO;
+
 		return result;
-	else
-		return buf[0];
+	}
+
+	return buf[0];
 }
 
 static inline int calc_divisor(int bps)
@@ -366,23 +373,29 @@ static int ark3116_open(struct tty_struc
 		dev_dbg(&port->dev,
 			"%s - usb_serial_generic_open failed: %d\n",
 			__func__, result);
-		goto err_out;
+		goto err_free;
 	}
 
 	/* remove any data still left: also clears error state */
 	ark3116_read_reg(serial, UART_RX, buf);
 
 	/* read modem status */
-	priv->msr = ark3116_read_reg(serial, UART_MSR, buf);
+	result = ark3116_read_reg(serial, UART_MSR, buf);
+	if (result < 0)
+		goto err_close;
+	priv->msr = *buf;
+
 	/* read line status */
-	priv->lsr = ark3116_read_reg(serial, UART_LSR, buf);
+	result = ark3116_read_reg(serial, UART_LSR, buf);
+	if (result < 0)
+		goto err_close;
+	priv->lsr = *buf;
 
 	result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
 	if (result) {
 		dev_err(&port->dev, "submit irq_in urb failed %d\n",
 			result);
-		ark3116_close(port);
-		goto err_out;
+		goto err_close;
 	}
 
 	/* activate interrupts */
@@ -395,8 +408,15 @@ static int ark3116_open(struct tty_struc
 	if (tty)
 		ark3116_set_termios(tty, port, NULL);
 
-err_out:
 	kfree(buf);
+
+	return 0;
+
+err_close:
+	usb_serial_generic_close(port);
+err_free:
+	kfree(buf);
+
 	return result;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/serial/ch341.c linux-libre-4.4.107-gnu/drivers/usb/serial/ch341.c
--- linux-libre-4.4-gnu/drivers/usb/serial/ch341.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/serial/ch341.c	2017-12-20 04:05:01.000000000 -0500
@@ -99,6 +99,8 @@ static int ch341_control_out(struct usb_
 	r = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), request,
 			    USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT,
 			    value, index, NULL, 0, DEFAULT_TIMEOUT);
+	if (r < 0)
+		dev_err(&dev->dev, "failed to send control message: %d\n", r);
 
 	return r;
 }
@@ -116,7 +118,20 @@ static int ch341_control_in(struct usb_d
 	r = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), request,
 			    USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
 			    value, index, buf, bufsize, DEFAULT_TIMEOUT);
-	return r;
+	if (r < bufsize) {
+		if (r >= 0) {
+			dev_err(&dev->dev,
+				"short control message received (%d < %u)\n",
+				r, bufsize);
+			r = -EIO;
+		}
+
+		dev_err(&dev->dev, "failed to receive control message: %d\n",
+			r);
+		return r;
+	}
+
+	return 0;
 }
 
 static int ch341_set_baudrate(struct usb_device *dev,
@@ -158,9 +173,9 @@ static int ch341_set_handshake(struct us
 
 static int ch341_get_status(struct usb_device *dev, struct ch341_private *priv)
 {
+	const unsigned int size = 2;
 	char *buffer;
 	int r;
-	const unsigned size = 8;
 	unsigned long flags;
 
 	buffer = kmalloc(size, GFP_KERNEL);
@@ -171,14 +186,9 @@ static int ch341_get_status(struct usb_d
 	if (r < 0)
 		goto out;
 
-	/* setup the private status if available */
-	if (r == 2) {
-		r = 0;
-		spin_lock_irqsave(&priv->lock, flags);
-		priv->line_status = (~(*buffer)) & CH341_BITS_MODEM_STAT;
-		spin_unlock_irqrestore(&priv->lock, flags);
-	} else
-		r = -EPROTO;
+	spin_lock_irqsave(&priv->lock, flags);
+	priv->line_status = (~(*buffer)) & CH341_BITS_MODEM_STAT;
+	spin_unlock_irqrestore(&priv->lock, flags);
 
 out:	kfree(buffer);
 	return r;
@@ -188,9 +198,9 @@ out:	kfree(buffer);
 
 static int ch341_configure(struct usb_device *dev, struct ch341_private *priv)
 {
+	const unsigned int size = 2;
 	char *buffer;
 	int r;
-	const unsigned size = 8;
 
 	buffer = kmalloc(size, GFP_KERNEL);
 	if (!buffer)
@@ -253,7 +263,6 @@ static int ch341_port_probe(struct usb_s
 
 	spin_lock_init(&priv->lock);
 	priv->baud_rate = DEFAULT_BAUD_RATE;
-	priv->line_control = CH341_BIT_RTS | CH341_BIT_DTR;
 
 	r = ch341_configure(port->serial->dev, priv);
 	if (r < 0)
@@ -315,7 +324,7 @@ static int ch341_open(struct tty_struct
 
 	r = ch341_configure(serial->dev, priv);
 	if (r)
-		goto out;
+		return r;
 
 	if (tty)
 		ch341_set_termios(tty, port, NULL);
@@ -325,12 +334,19 @@ static int ch341_open(struct tty_struct
 	if (r) {
 		dev_err(&port->dev, "%s - failed to submit interrupt urb: %d\n",
 			__func__, r);
-		goto out;
+		return r;
 	}
 
 	r = usb_serial_generic_open(tty, port);
+	if (r)
+		goto err_kill_interrupt_urb;
 
-out:	return r;
+	return 0;
+
+err_kill_interrupt_urb:
+	usb_kill_urb(port->interrupt_in_urb);
+
+	return r;
 }
 
 /* Old_termios contains the original termios settings and
@@ -345,26 +361,25 @@ static void ch341_set_termios(struct tty
 
 	baud_rate = tty_get_baud_rate(tty);
 
-	priv->baud_rate = baud_rate;
-
 	if (baud_rate) {
-		spin_lock_irqsave(&priv->lock, flags);
-		priv->line_control |= (CH341_BIT_DTR | CH341_BIT_RTS);
-		spin_unlock_irqrestore(&priv->lock, flags);
+		priv->baud_rate = baud_rate;
 		ch341_set_baudrate(port->serial->dev, priv);
-	} else {
-		spin_lock_irqsave(&priv->lock, flags);
-		priv->line_control &= ~(CH341_BIT_DTR | CH341_BIT_RTS);
-		spin_unlock_irqrestore(&priv->lock, flags);
 	}
 
-	ch341_set_handshake(port->serial->dev, priv->line_control);
-
 	/* Unimplemented:
 	 * (cflag & CSIZE) : data bits [5, 8]
 	 * (cflag & PARENB) : parity {NONE, EVEN, ODD}
 	 * (cflag & CSTOPB) : stop bits [1, 2]
 	 */
+
+	spin_lock_irqsave(&priv->lock, flags);
+	if (C_BAUD(tty) == B0)
+		priv->line_control &= ~(CH341_BIT_DTR | CH341_BIT_RTS);
+	else if (old_termios && (old_termios->c_cflag & CBAUD) == B0)
+		priv->line_control |= (CH341_BIT_DTR | CH341_BIT_RTS);
+	spin_unlock_irqrestore(&priv->lock, flags);
+
+	ch341_set_handshake(port->serial->dev, priv->line_control);
 }
 
 static void ch341_break_ctl(struct tty_struct *tty, int break_state)
@@ -539,14 +554,23 @@ static int ch341_tiocmget(struct tty_str
 
 static int ch341_reset_resume(struct usb_serial *serial)
 {
-	struct ch341_private *priv;
-
-	priv = usb_get_serial_port_data(serial->port[0]);
+	struct usb_serial_port *port = serial->port[0];
+	struct ch341_private *priv = usb_get_serial_port_data(port);
+	int ret;
 
 	/* reconfigure ch341 serial port after bus-reset */
 	ch341_configure(serial->dev, priv);
 
-	return 0;
+	if (test_bit(ASYNCB_INITIALIZED, &port->port.flags)) {
+		ret = usb_submit_urb(port->interrupt_in_urb, GFP_NOIO);
+		if (ret) {
+			dev_err(&port->dev, "failed to submit interrupt urb: %d\n",
+				ret);
+			return ret;
+		}
+	}
+
+	return usb_serial_generic_resume(serial);
 }
 
 static struct usb_serial_driver ch341_device = {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/serial/console.c linux-libre-4.4.107-gnu/drivers/usb/serial/console.c
--- linux-libre-4.4-gnu/drivers/usb/serial/console.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/serial/console.c	2017-12-20 04:05:01.000000000 -0500
@@ -189,6 +189,7 @@ static int usb_console_setup(struct cons
 	tty_kref_put(tty);
  reset_open_count:
 	port->port.count = 0;
+	info->port = NULL;
 	usb_autopm_put_interface(serial->interface);
  error_get_interface:
 	usb_serial_put(serial);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/serial/cp210x.c linux-libre-4.4.107-gnu/drivers/usb/serial/cp210x.c
--- linux-libre-4.4-gnu/drivers/usb/serial/cp210x.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/serial/cp210x.c	2017-12-20 04:05:01.000000000 -0500
@@ -98,6 +98,7 @@ static const struct usb_device_id id_tab
 	{ USB_DEVICE(0x10C4, 0x81AC) }, /* MSD Dash Hawk */
 	{ USB_DEVICE(0x10C4, 0x81AD) }, /* INSYS USB Modem */
 	{ USB_DEVICE(0x10C4, 0x81C8) }, /* Lipowsky Industrie Elektronik GmbH, Baby-JTAG */
+	{ USB_DEVICE(0x10C4, 0x81D7) }, /* IAI Corp. RCB-CV-USB USB to RS485 Adaptor */
 	{ USB_DEVICE(0x10C4, 0x81E2) }, /* Lipowsky Industrie Elektronik GmbH, Baby-LIN */
 	{ USB_DEVICE(0x10C4, 0x81E7) }, /* Aerocomm Radio */
 	{ USB_DEVICE(0x10C4, 0x81E8) }, /* Zephyr Bioharness */
@@ -107,6 +108,7 @@ static const struct usb_device_id id_tab
 	{ USB_DEVICE(0x10C4, 0x826B) }, /* Cygnal Integrated Products, Inc., Fasttrax GPS demonstration module */
 	{ USB_DEVICE(0x10C4, 0x8281) }, /* Nanotec Plug & Drive */
 	{ USB_DEVICE(0x10C4, 0x8293) }, /* Telegesis ETRX2USB */
+	{ USB_DEVICE(0x10C4, 0x82F4) }, /* Starizona MicroTouch */
 	{ USB_DEVICE(0x10C4, 0x82F9) }, /* Procyon AVS */
 	{ USB_DEVICE(0x10C4, 0x8341) }, /* Siemens MC35PU GPRS Modem */
 	{ USB_DEVICE(0x10C4, 0x8382) }, /* Cygnal Integrated Products, Inc. */
@@ -115,7 +117,9 @@ static const struct usb_device_id id_tab
 	{ USB_DEVICE(0x10C4, 0x8411) }, /* Kyocera GPS Module */
 	{ USB_DEVICE(0x10C4, 0x8418) }, /* IRZ Automation Teleport SG-10 GSM/GPRS Modem */
 	{ USB_DEVICE(0x10C4, 0x846E) }, /* BEI USB Sensor Interface (VCP) */
+	{ USB_DEVICE(0x10C4, 0x8470) }, /* Juniper Networks BX Series System Console */
 	{ USB_DEVICE(0x10C4, 0x8477) }, /* Balluff RFID */
+	{ USB_DEVICE(0x10C4, 0x84B6) }, /* Starizona Hyperion */
 	{ USB_DEVICE(0x10C4, 0x85EA) }, /* AC-Services IBUS-IF */
 	{ USB_DEVICE(0x10C4, 0x85EB) }, /* AC-Services CIS-IBUS */
 	{ USB_DEVICE(0x10C4, 0x85F8) }, /* Virtenio Preon32 */
@@ -126,9 +130,12 @@ static const struct usb_device_id id_tab
 	{ USB_DEVICE(0x10C4, 0x88A4) }, /* MMB Networks ZigBee USB Device */
 	{ USB_DEVICE(0x10C4, 0x88A5) }, /* Planet Innovation Ingeni ZigBee USB Device */
 	{ USB_DEVICE(0x10C4, 0x8946) }, /* Ketra N1 Wireless Interface */
+	{ USB_DEVICE(0x10C4, 0x8962) }, /* Brim Brothers charging dock */
 	{ USB_DEVICE(0x10C4, 0x8977) },	/* CEL MeshWorks DevKit Device */
 	{ USB_DEVICE(0x10C4, 0x8998) }, /* KCF Technologies PRN */
 	{ USB_DEVICE(0x10C4, 0x8A2A) }, /* HubZ dual ZigBee and Z-Wave dongle */
+	{ USB_DEVICE(0x10C4, 0x8A5E) }, /* CEL EM3588 ZigBee USB Stick Long Range */
+	{ USB_DEVICE(0x10C4, 0x8B34) }, /* Qivicon ZigBee USB Radio Stick */
 	{ USB_DEVICE(0x10C4, 0xEA60) }, /* Silicon Labs factory default */
 	{ USB_DEVICE(0x10C4, 0xEA61) }, /* Silicon Labs factory default */
 	{ USB_DEVICE(0x10C4, 0xEA70) }, /* Silicon Labs factory default */
@@ -139,6 +146,8 @@ static const struct usb_device_id id_tab
 	{ USB_DEVICE(0x10C4, 0xF004) }, /* Elan Digital Systems USBcount50 */
 	{ USB_DEVICE(0x10C5, 0xEA61) }, /* Silicon Labs MobiData GPRS USB Modem */
 	{ USB_DEVICE(0x10CE, 0xEA6A) }, /* Silicon Labs MobiData GPRS USB Modem 100EU */
+	{ USB_DEVICE(0x12B8, 0xEC60) }, /* Link G4 ECU */
+	{ USB_DEVICE(0x12B8, 0xEC62) }, /* Link G4+ ECU */
 	{ USB_DEVICE(0x13AD, 0x9999) }, /* Baltech card reader */
 	{ USB_DEVICE(0x1555, 0x0004) }, /* Owen AC4 USB-RS485 Converter */
 	{ USB_DEVICE(0x166A, 0x0201) }, /* Clipsal 5500PACA C-Bus Pascal Automation Controller */
@@ -160,6 +169,14 @@ static const struct usb_device_id id_tab
 	{ USB_DEVICE(0x17F4, 0xAAAA) }, /* Wavesense Jazz blood glucose meter */
 	{ USB_DEVICE(0x1843, 0x0200) }, /* Vaisala USB Instrument Cable */
 	{ USB_DEVICE(0x18EF, 0xE00F) }, /* ELV USB-I2C-Interface */
+	{ USB_DEVICE(0x18EF, 0xE025) }, /* ELV Marble Sound Board 1 */
+	{ USB_DEVICE(0x18EF, 0xE032) }, /* ELV TFD500 Data Logger */
+	{ USB_DEVICE(0x1901, 0x0190) }, /* GE B850 CP2105 Recorder interface */
+	{ USB_DEVICE(0x1901, 0x0193) }, /* GE B650 CP2104 PMC interface */
+	{ USB_DEVICE(0x1901, 0x0194) },	/* GE Healthcare Remote Alarm Box */
+	{ USB_DEVICE(0x1901, 0x0195) },	/* GE B850/B650/B450 CP2104 DP UART interface */
+	{ USB_DEVICE(0x1901, 0x0196) },	/* GE B850 CP2105 DP UART interface */
+	{ USB_DEVICE(0x19CF, 0x3000) }, /* Parrot NMEA GPS Flight Recorder */
 	{ USB_DEVICE(0x1ADB, 0x0001) }, /* Schweitzer Engineering C662 Cable */
 	{ USB_DEVICE(0x1B1C, 0x1C00) }, /* Corsair USB Dongle */
 	{ USB_DEVICE(0x1BA4, 0x0002) },	/* Silicon Labs 358x factory default */
@@ -774,7 +791,7 @@ static void cp210x_set_termios(struct tt
 		} else {
 			modem_ctl[0] &= ~0x7B;
 			modem_ctl[0] |= 0x01;
-			modem_ctl[1] |= 0x40;
+			modem_ctl[1] = 0x40;
 			dev_dbg(dev, "%s - flow control = NONE\n", __func__);
 		}
 
@@ -834,7 +851,9 @@ static int cp210x_tiocmget(struct tty_st
 	unsigned int control;
 	int result;
 
-	cp210x_get_config(port, CP210X_GET_MDMSTS, &control, 1);
+	result = cp210x_get_config(port, CP210X_GET_MDMSTS, &control, 1);
+	if (result)
+		return result;
 
 	result = ((control & CONTROL_DTR) ? TIOCM_DTR : 0)
 		|((control & CONTROL_RTS) ? TIOCM_RTS : 0)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/serial/cyberjack.c linux-libre-4.4.107-gnu/drivers/usb/serial/cyberjack.c
--- linux-libre-4.4-gnu/drivers/usb/serial/cyberjack.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/serial/cyberjack.c	2017-12-20 04:05:01.000000000 -0500
@@ -50,6 +50,7 @@
 #define CYBERJACK_PRODUCT_ID	0x0100
 
 /* Function prototypes */
+static int cyberjack_attach(struct usb_serial *serial);
 static int cyberjack_port_probe(struct usb_serial_port *port);
 static int cyberjack_port_remove(struct usb_serial_port *port);
 static int  cyberjack_open(struct tty_struct *tty,
@@ -77,6 +78,7 @@ static struct usb_serial_driver cyberjac
 	.description =		"Reiner SCT Cyberjack USB card reader",
 	.id_table =		id_table,
 	.num_ports =		1,
+	.attach =		cyberjack_attach,
 	.port_probe =		cyberjack_port_probe,
 	.port_remove =		cyberjack_port_remove,
 	.open =			cyberjack_open,
@@ -100,6 +102,14 @@ struct cyberjack_private {
 	short		wrsent;		/* Data already sent */
 };
 
+static int cyberjack_attach(struct usb_serial *serial)
+{
+	if (serial->num_bulk_out < serial->num_ports)
+		return -ENODEV;
+
+	return 0;
+}
+
 static int cyberjack_port_probe(struct usb_serial_port *port)
 {
 	struct cyberjack_private *priv;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/serial/cypress_m8.c linux-libre-4.4.107-gnu/drivers/usb/serial/cypress_m8.c
--- linux-libre-4.4-gnu/drivers/usb/serial/cypress_m8.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/serial/cypress_m8.c	2017-12-20 04:05:01.000000000 -0500
@@ -447,6 +447,11 @@ static int cypress_generic_port_probe(st
 	struct usb_serial *serial = port->serial;
 	struct cypress_private *priv;
 
+	if (!port->interrupt_out_urb || !port->interrupt_in_urb) {
+		dev_err(&port->dev, "required endpoint is missing\n");
+		return -ENODEV;
+	}
+
 	priv = kzalloc(sizeof(struct cypress_private), GFP_KERNEL);
 	if (!priv)
 		return -ENOMEM;
@@ -606,12 +611,6 @@ static int cypress_open(struct tty_struc
 		cypress_set_termios(tty, port, &priv->tmp_termios);
 
 	/* setup the port and start reading from the device */
-	if (!port->interrupt_in_urb) {
-		dev_err(&port->dev, "%s - interrupt_in_urb is empty!\n",
-			__func__);
-		return -1;
-	}
-
 	usb_fill_int_urb(port->interrupt_in_urb, serial->dev,
 		usb_rcvintpipe(serial->dev, port->interrupt_in_endpointAddress),
 		port->interrupt_in_urb->transfer_buffer,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/serial/digi_acceleport.c linux-libre-4.4.107-gnu/drivers/usb/serial/digi_acceleport.c
--- linux-libre-4.4-gnu/drivers/usb/serial/digi_acceleport.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/serial/digi_acceleport.c	2017-12-20 04:05:01.000000000 -0500
@@ -1251,8 +1251,27 @@ static int digi_port_init(struct usb_ser
 
 static int digi_startup(struct usb_serial *serial)
 {
+	struct device *dev = &serial->interface->dev;
 	struct digi_serial *serial_priv;
 	int ret;
+	int i;
+
+	/* check whether the device has the expected number of endpoints */
+	if (serial->num_port_pointers < serial->type->num_ports + 1) {
+		dev_err(dev, "OOB endpoints missing\n");
+		return -ENODEV;
+	}
+
+	for (i = 0; i < serial->type->num_ports + 1 ; i++) {
+		if (!serial->port[i]->read_urb) {
+			dev_err(dev, "bulk-in endpoint missing\n");
+			return -ENODEV;
+		}
+		if (!serial->port[i]->write_urb) {
+			dev_err(dev, "bulk-out endpoint missing\n");
+			return -ENODEV;
+		}
+	}
 
 	serial_priv = kzalloc(sizeof(*serial_priv), GFP_KERNEL);
 	if (!serial_priv)
@@ -1380,25 +1399,30 @@ static int digi_read_inb_callback(struct
 {
 	struct usb_serial_port *port = urb->context;
 	struct digi_port *priv = usb_get_serial_port_data(port);
-	int opcode = ((unsigned char *)urb->transfer_buffer)[0];
-	int len = ((unsigned char *)urb->transfer_buffer)[1];
-	int port_status = ((unsigned char *)urb->transfer_buffer)[2];
-	unsigned char *data = ((unsigned char *)urb->transfer_buffer) + 3;
+	unsigned char *buf = urb->transfer_buffer;
+	int opcode;
+	int len;
+	int port_status;
+	unsigned char *data;
 	int flag, throttled;
-	int status = urb->status;
-
-	/* do not process callbacks on closed ports */
-	/* but do continue the read chain */
-	if (urb->status == -ENOENT)
-		return 0;
 
 	/* short/multiple packet check */
+	if (urb->actual_length < 2) {
+		dev_warn(&port->dev, "short packet received\n");
+		return -1;
+	}
+
+	opcode = buf[0];
+	len = buf[1];
+
 	if (urb->actual_length != len + 2) {
-		dev_err(&port->dev, "%s: INCOMPLETE OR MULTIPLE PACKET, "
-			"status=%d, port=%d, opcode=%d, len=%d, "
-			"actual_length=%d, status=%d\n", __func__, status,
-			priv->dp_port_num, opcode, len, urb->actual_length,
-			port_status);
+		dev_err(&port->dev, "malformed packet received: port=%d, opcode=%d, len=%d, actual_length=%u\n",
+			priv->dp_port_num, opcode, len, urb->actual_length);
+		return -1;
+	}
+
+	if (opcode == DIGI_CMD_RECEIVE_DATA && len < 1) {
+		dev_err(&port->dev, "malformed data packet received\n");
 		return -1;
 	}
 
@@ -1412,6 +1436,9 @@ static int digi_read_inb_callback(struct
 
 	/* receive data */
 	if (opcode == DIGI_CMD_RECEIVE_DATA) {
+		port_status = buf[2];
+		data = &buf[3];
+
 		/* get flag from port_status */
 		flag = 0;
 
@@ -1464,16 +1491,20 @@ static int digi_read_oob_callback(struct
 	struct usb_serial *serial = port->serial;
 	struct tty_struct *tty;
 	struct digi_port *priv = usb_get_serial_port_data(port);
+	unsigned char *buf = urb->transfer_buffer;
 	int opcode, line, status, val;
 	int i;
 	unsigned int rts;
 
+	if (urb->actual_length < 4)
+		return -1;
+
 	/* handle each oob command */
-	for (i = 0; i < urb->actual_length - 3;) {
-		opcode = ((unsigned char *)urb->transfer_buffer)[i++];
-		line = ((unsigned char *)urb->transfer_buffer)[i++];
-		status = ((unsigned char *)urb->transfer_buffer)[i++];
-		val = ((unsigned char *)urb->transfer_buffer)[i++];
+	for (i = 0; i < urb->actual_length - 3; i += 4) {
+		opcode = buf[i];
+		line = buf[i + 1];
+		status = buf[i + 2];
+		val = buf[i + 3];
 
 		dev_dbg(&port->dev, "digi_read_oob_callback: opcode=%d, line=%d, status=%d, val=%d\n",
 			opcode, line, status, val);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/serial/ftdi_sio.c linux-libre-4.4.107-gnu/drivers/usb/serial/ftdi_sio.c
--- linux-libre-4.4-gnu/drivers/usb/serial/ftdi_sio.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/serial/ftdi_sio.c	2017-12-20 04:05:01.000000000 -0500
@@ -648,6 +648,8 @@ static const struct usb_device_id id_tab
 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_TFD128_PID) },
 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_FM3RX_PID) },
 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_WS777_PID) },
+	{ USB_DEVICE(FTDI_VID, FTDI_PALMSENS_PID) },
+	{ USB_DEVICE(FTDI_VID, FTDI_IVIUM_XSTAT_PID) },
 	{ USB_DEVICE(FTDI_VID, LINX_SDMUSBQSS_PID) },
 	{ USB_DEVICE(FTDI_VID, LINX_MASTERDEVEL2_PID) },
 	{ USB_DEVICE(FTDI_VID, LINX_FUTURE_0_PID) },
@@ -807,10 +809,10 @@ static const struct usb_device_id id_tab
 	{ USB_DEVICE(FTDI_VID, FTDI_PROPOX_ISPCABLEIII_PID) },
 	{ USB_DEVICE(FTDI_VID, CYBER_CORTEX_AV_PID),
 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
-	{ USB_DEVICE(OLIMEX_VID, OLIMEX_ARM_USB_OCD_PID),
-		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
-	{ USB_DEVICE(OLIMEX_VID, OLIMEX_ARM_USB_OCD_H_PID),
-		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
+	{ USB_DEVICE_INTERFACE_NUMBER(OLIMEX_VID, OLIMEX_ARM_USB_OCD_PID, 1) },
+	{ USB_DEVICE_INTERFACE_NUMBER(OLIMEX_VID, OLIMEX_ARM_USB_OCD_H_PID, 1) },
+	{ USB_DEVICE_INTERFACE_NUMBER(OLIMEX_VID, OLIMEX_ARM_USB_TINY_PID, 1) },
+	{ USB_DEVICE_INTERFACE_NUMBER(OLIMEX_VID, OLIMEX_ARM_USB_TINY_H_PID, 1) },
 	{ USB_DEVICE(FIC_VID, FIC_NEO1973_DEBUG_PID),
 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
 	{ USB_DEVICE(FTDI_VID, FTDI_OOCDLINK_PID),
@@ -824,6 +826,7 @@ static const struct usb_device_id id_tab
 	{ USB_DEVICE(FTDI_VID, FTDI_TURTELIZER_PID),
 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
 	{ USB_DEVICE(RATOC_VENDOR_ID, RATOC_PRODUCT_ID_USB60F) },
+	{ USB_DEVICE(RATOC_VENDOR_ID, RATOC_PRODUCT_ID_SCU18) },
 	{ USB_DEVICE(FTDI_VID, FTDI_REU_TINY_PID) },
 
 	/* Papouch devices based on FTDI chip */
@@ -870,6 +873,7 @@ static const struct usb_device_id id_tab
 	{ USB_DEVICE_AND_INTERFACE_INFO(MICROCHIP_VID, MICROCHIP_USB_BOARD_PID,
 					USB_CLASS_VENDOR_SPEC,
 					USB_SUBCLASS_VENDOR_SPEC, 0x00) },
+	{ USB_DEVICE_INTERFACE_NUMBER(ACTEL_VID, MICROSEMI_ARROW_SF2PLUS_BOARD_PID, 2) },
 	{ USB_DEVICE(JETI_VID, JETI_SPC1201_PID) },
 	{ USB_DEVICE(MARVELL_VID, MARVELL_SHEEVAPLUG_PID),
 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
@@ -983,7 +987,8 @@ static const struct usb_device_id id_tab
 	/* ekey Devices */
 	{ USB_DEVICE(FTDI_VID, FTDI_EKEY_CONV_USB_PID) },
 	/* Infineon Devices */
-	{ USB_DEVICE_INTERFACE_NUMBER(INFINEON_VID, INFINEON_TRIBOARD_PID, 1) },
+	{ USB_DEVICE_INTERFACE_NUMBER(INFINEON_VID, INFINEON_TRIBOARD_TC1798_PID, 1) },
+	{ USB_DEVICE_INTERFACE_NUMBER(INFINEON_VID, INFINEON_TRIBOARD_TC2X7_PID, 1) },
 	/* GE Healthcare devices */
 	{ USB_DEVICE(GE_HEALTHCARE_VID, GE_HEALTHCARE_NEMO_TRACKER_PID) },
 	/* Active Research (Actisense) devices */
@@ -1003,6 +1008,15 @@ static const struct usb_device_id id_tab
 	{ USB_DEVICE(FTDI_VID, CHETCO_SEASMART_DISPLAY_PID) },
 	{ USB_DEVICE(FTDI_VID, CHETCO_SEASMART_LITE_PID) },
 	{ USB_DEVICE(FTDI_VID, CHETCO_SEASMART_ANALOG_PID) },
+	/* ICP DAS I-756xU devices */
+	{ USB_DEVICE(ICPDAS_VID, ICPDAS_I7560U_PID) },
+	{ USB_DEVICE(ICPDAS_VID, ICPDAS_I7561U_PID) },
+	{ USB_DEVICE(ICPDAS_VID, ICPDAS_I7563U_PID) },
+	{ USB_DEVICE(WICED_VID, WICED_USB20706V2_PID) },
+	{ USB_DEVICE(TI_VID, TI_CC3200_LAUNCHPAD_PID),
+		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
+	{ USB_DEVICE(CYPRESS_VID, CYPRESS_WICED_BT_USB_PID) },
+	{ USB_DEVICE(CYPRESS_VID, CYPRESS_WICED_WL_USB_PID) },
 	{ }					/* Terminating entry */
 };
 
@@ -1428,10 +1442,13 @@ static int read_latency_timer(struct usb
 			     FTDI_SIO_GET_LATENCY_TIMER_REQUEST_TYPE,
 			     0, priv->interface,
 			     buf, 1, WDR_TIMEOUT);
-	if (rv < 0)
+	if (rv < 1) {
 		dev_err(&port->dev, "Unable to read latency timer: %i\n", rv);
-	else
+		if (rv >= 0)
+			rv = -EIO;
+	} else {
 		priv->latency = buf[0];
+	}
 
 	kfree(buf);
 
@@ -1493,9 +1510,9 @@ static int set_serial_info(struct tty_st
 					(new_serial.flags & ASYNC_FLAGS));
 	priv->custom_divisor = new_serial.custom_divisor;
 
+check_and_exit:
 	write_latency_timer(port);
 
-check_and_exit:
 	if ((old_priv.flags & ASYNC_SPD_MASK) !=
 	     (priv->flags & ASYNC_SPD_MASK)) {
 		if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
@@ -1796,8 +1813,6 @@ static int ftdi_sio_port_probe(struct us
 
 	mutex_init(&priv->cfg_lock);
 
-	priv->flags = ASYNC_LOW_LATENCY;
-
 	if (quirk && quirk->port_probe)
 		quirk->port_probe(priv);
 
@@ -2061,6 +2076,20 @@ static int ftdi_process_packet(struct us
 		priv->prev_status = status;
 	}
 
+	/* save if the transmitter is empty or not */
+	if (packet[1] & FTDI_RS_TEMT)
+		priv->transmit_empty = 1;
+	else
+		priv->transmit_empty = 0;
+
+	len -= 2;
+	if (!len)
+		return 0;	/* status only */
+
+	/*
+	 * Break and error status must only be processed for packets with
+	 * data payload to avoid over-reporting.
+	 */
 	flag = TTY_NORMAL;
 	if (packet[1] & FTDI_RS_ERR_MASK) {
 		/* Break takes precedence over parity, which takes precedence
@@ -2083,15 +2112,6 @@ static int ftdi_process_packet(struct us
 		}
 	}
 
-	/* save if the transmitter is empty or not */
-	if (packet[1] & FTDI_RS_TEMT)
-		priv->transmit_empty = 1;
-	else
-		priv->transmit_empty = 0;
-
-	len -= 2;
-	if (!len)
-		return 0;	/* status only */
 	port->icount.rx += len;
 	ch = packet + 2;
 
@@ -2422,8 +2442,12 @@ static int ftdi_get_modem_status(struct
 			FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE,
 			0, priv->interface,
 			buf, len, WDR_TIMEOUT);
-	if (ret < 0) {
+
+	/* NOTE: We allow short responses and handle that below. */
+	if (ret < 1) {
 		dev_err(&port->dev, "failed to get modem status: %d\n", ret);
+		if (ret >= 0)
+			ret = -EIO;
 		ret = usb_translate_errors(ret);
 		goto out;
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/serial/ftdi_sio_ids.h linux-libre-4.4.107-gnu/drivers/usb/serial/ftdi_sio_ids.h
--- linux-libre-4.4-gnu/drivers/usb/serial/ftdi_sio_ids.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/serial/ftdi_sio_ids.h	2017-12-20 04:05:01.000000000 -0500
@@ -406,6 +406,12 @@
 #define FTDI_4N_GALAXY_DE_3_PID	0xF3C2
 
 /*
+ * Ivium Technologies product IDs
+ */
+#define FTDI_PALMSENS_PID	0xf440
+#define FTDI_IVIUM_XSTAT_PID	0xf441
+
+/*
  * Linx Technologies product ids
  */
 #define LINX_SDMUSBQSS_PID	0xF448	/* Linx SDM-USB-QS-S */
@@ -590,6 +596,12 @@
 #define STK541_PID		0x2109 /* Zigbee Controller */
 
 /*
+ * Texas Instruments
+ */
+#define TI_VID			0x0451
+#define TI_CC3200_LAUNCHPAD_PID	0xC32A /* SimpleLink Wi-Fi CC3200 LaunchPad */
+
+/*
  * Blackfin gnICE JTAG
  * http://docs.blackfin.uclinux.org/doku.php?id=hw:jtag:gnice
  */
@@ -598,6 +610,13 @@
 #define ADI_GNICEPLUS_PID	0xF001
 
 /*
+ * Cypress WICED USB UART
+ */
+#define CYPRESS_VID			0x04B4
+#define CYPRESS_WICED_BT_USB_PID	0x009B
+#define CYPRESS_WICED_WL_USB_PID	0xF900
+
+/*
  * Microchip Technology, Inc.
  *
  * MICROCHIP_VID (0x04D8) and MICROCHIP_USB_BOARD_PID (0x000A) are
@@ -615,12 +634,14 @@
  */
 #define RATOC_VENDOR_ID		0x0584
 #define RATOC_PRODUCT_ID_USB60F	0xb020
+#define RATOC_PRODUCT_ID_SCU18	0xb03a
 
 /*
  * Infineon Technologies
  */
-#define INFINEON_VID		0x058b
-#define INFINEON_TRIBOARD_PID	0x0028 /* DAS JTAG TriBoard TC1798 V1.0 */
+#define INFINEON_VID		        0x058b
+#define INFINEON_TRIBOARD_TC1798_PID	0x0028 /* DAS JTAG TriBoard TC1798 V1.0 */
+#define INFINEON_TRIBOARD_TC2X7_PID	0x0043 /* DAS JTAG TriBoard TC2X7 V1.0 */
 
 /*
  * Acton Research Corp.
@@ -672,6 +693,12 @@
 #define INTREPID_NEOVI_PID	0x0701
 
 /*
+ * WICED USB UART
+ */
+#define WICED_VID		0x0A5C
+#define WICED_USB20706V2_PID	0x6422
+
+/*
  * Definitions for ID TECH (www.idt-net.com) devices
  */
 #define IDTECH_VID		0x0ACD	/* ID TECH Vendor ID */
@@ -853,9 +880,17 @@
 #define	FIC_VID			0x1457
 #define	FIC_NEO1973_DEBUG_PID	0x5118
 
+/*
+ * Actel / Microsemi
+ */
+#define ACTEL_VID				0x1514
+#define MICROSEMI_ARROW_SF2PLUS_BOARD_PID	0x2008
+
 /* Olimex */
 #define OLIMEX_VID			0x15BA
 #define OLIMEX_ARM_USB_OCD_PID		0x0003
+#define OLIMEX_ARM_USB_TINY_PID	0x0004
+#define OLIMEX_ARM_USB_TINY_H_PID	0x002a
 #define OLIMEX_ARM_USB_OCD_H_PID	0x002b
 
 /*
@@ -871,6 +906,14 @@
 #define NOVITUS_BONO_E_PID		0x6010
 
 /*
+ * ICPDAS I-756*U devices
+ */
+#define ICPDAS_VID			0x1b5c
+#define ICPDAS_I7560U_PID		0x0103
+#define ICPDAS_I7561U_PID		0x0104
+#define ICPDAS_I7563U_PID		0x0105
+
+/*
  * RT Systems programming cables for various ham radios
  */
 #define RTSYSTEMS_VID		0x2100	/* Vendor ID */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/serial/garmin_gps.c linux-libre-4.4.107-gnu/drivers/usb/serial/garmin_gps.c
--- linux-libre-4.4-gnu/drivers/usb/serial/garmin_gps.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/serial/garmin_gps.c	2017-12-20 04:05:01.000000000 -0500
@@ -138,6 +138,7 @@ struct garmin_data {
 	__u8   privpkt[4*6];
 	spinlock_t lock;
 	struct list_head pktlist;
+	struct usb_anchor write_urbs;
 };
 
 
@@ -906,7 +907,7 @@ static int garmin_init_session(struct us
 					sizeof(GARMIN_START_SESSION_REQ), 0);
 
 			if (status < 0)
-				break;
+				goto err_kill_urbs;
 		}
 
 		if (status > 0)
@@ -914,6 +915,12 @@ static int garmin_init_session(struct us
 	}
 
 	return status;
+
+err_kill_urbs:
+	usb_kill_anchored_urbs(&garmin_data_p->write_urbs);
+	usb_kill_urb(port->interrupt_in_urb);
+
+	return status;
 }
 
 
@@ -931,7 +938,6 @@ static int garmin_open(struct tty_struct
 	spin_unlock_irqrestore(&garmin_data_p->lock, flags);
 
 	/* shutdown any bulk reads that might be going on */
-	usb_kill_urb(port->write_urb);
 	usb_kill_urb(port->read_urb);
 
 	if (garmin_data_p->state == STATE_RESET)
@@ -954,7 +960,7 @@ static void garmin_close(struct usb_seri
 
 	/* shutdown our urbs */
 	usb_kill_urb(port->read_urb);
-	usb_kill_urb(port->write_urb);
+	usb_kill_anchored_urbs(&garmin_data_p->write_urbs);
 
 	/* keep reset state so we know that we must start a new session */
 	if (garmin_data_p->state != STATE_RESET)
@@ -1038,12 +1044,15 @@ static int garmin_write_bulk(struct usb_
 	}
 
 	/* send it down the pipe */
+	usb_anchor_urb(urb, &garmin_data_p->write_urbs);
 	status = usb_submit_urb(urb, GFP_ATOMIC);
 	if (status) {
 		dev_err(&port->dev,
 		   "%s - usb_submit_urb(write bulk) failed with status = %d\n",
 				__func__, status);
 		count = status;
+		usb_unanchor_urb(urb);
+		kfree(buffer);
 	}
 
 	/* we are done with this urb, so let the host driver
@@ -1401,9 +1410,16 @@ static int garmin_port_probe(struct usb_
 	garmin_data_p->state = 0;
 	garmin_data_p->flags = 0;
 	garmin_data_p->count = 0;
+	init_usb_anchor(&garmin_data_p->write_urbs);
 	usb_set_serial_port_data(port, garmin_data_p);
 
 	status = garmin_init_session(port);
+	if (status)
+		goto err_free;
+
+	return 0;
+err_free:
+	kfree(garmin_data_p);
 
 	return status;
 }
@@ -1413,6 +1429,7 @@ static int garmin_port_remove(struct usb
 {
 	struct garmin_data *garmin_data_p = usb_get_serial_port_data(port);
 
+	usb_kill_anchored_urbs(&garmin_data_p->write_urbs);
 	usb_kill_urb(port->interrupt_in_urb);
 	del_timer_sync(&garmin_data_p->timer);
 	kfree(garmin_data_p);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/serial/io_edgeport.c linux-libre-4.4.107-gnu/drivers/usb/serial/io_edgeport.c
--- linux-libre-4.4-gnu/drivers/usb/serial/io_edgeport.c	2016-01-10 21:15:39.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/serial/io_edgeport.c	2017-12-20 11:44:51.000000000 -0500
@@ -492,20 +492,24 @@ static int get_epic_descriptor(struct ed
 	int result;
 	struct usb_serial *serial = ep->serial;
 	struct edgeport_product_info *product_info = &ep->product_info;
-	struct edge_compatibility_descriptor *epic = &ep->epic_descriptor;
+	struct edge_compatibility_descriptor *epic;
 	struct edge_compatibility_bits *bits;
 	struct device *dev = &serial->dev->dev;
 
 	ep->is_epic = 0;
+
+	epic = kmalloc(sizeof(*epic), GFP_KERNEL);
+	if (!epic)
+		return -ENOMEM;
+
 	result = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),
 				 USB_REQUEST_ION_GET_EPIC_DESC,
 				 0xC0, 0x00, 0x00,
-				 &ep->epic_descriptor,
-				 sizeof(struct edge_compatibility_descriptor),
+				 epic, sizeof(*epic),
 				 300);
-
-	if (result > 0) {
+	if (result == sizeof(*epic)) {
 		ep->is_epic = 1;
+		memcpy(&ep->epic_descriptor, epic, sizeof(*epic));
 		memset(product_info, 0, sizeof(struct edgeport_product_info));
 
 		product_info->NumPorts = epic->NumPorts;
@@ -534,8 +538,16 @@ static int get_epic_descriptor(struct ed
 		dev_dbg(dev, "  IOSPWriteLCR     : %s\n", bits->IOSPWriteLCR	? "TRUE": "FALSE");
 		dev_dbg(dev, "  IOSPSetBaudRate  : %s\n", bits->IOSPSetBaudRate	? "TRUE": "FALSE");
 		dev_dbg(dev, "  TrueEdgeport     : %s\n", bits->TrueEdgeport	? "TRUE": "FALSE");
+
+		result = 0;
+	} else if (result >= 0) {
+		dev_warn(&serial->interface->dev, "short epic descriptor received: %d\n",
+			 result);
+		result = -EIO;
 	}
 
+	kfree(epic);
+
 	return result;
 }
 
@@ -2097,8 +2109,7 @@ static int rom_write(struct usb_serial *
  * rom_read
  *	reads a number of bytes from the Edgeport device starting at the given
  *	address.
- *	If successful returns the number of bytes read, otherwise it returns
- *	a negative error number of the problem.
+ *	Returns zero on success or a negative error number.
  ****************************************************************************/
 static int rom_read(struct usb_serial *serial, __u16 extAddr,
 					__u16 addr, __u16 length, __u8 *data)
@@ -2123,12 +2134,17 @@ static int rom_read(struct usb_serial *s
 					USB_REQUEST_ION_READ_ROM,
 					0xC0, addr, extAddr, transfer_buffer,
 					current_length, 300);
-		if (result < 0)
+		if (result < current_length) {
+			if (result >= 0)
+				result = -EIO;
 			break;
+		}
 		memcpy(data, transfer_buffer, current_length);
 		length -= current_length;
 		addr += current_length;
 		data += current_length;
+
+		result = 0;
 	}
 
 	kfree(transfer_buffer);
@@ -2585,9 +2601,10 @@ static void get_manufacturing_desc(struc
 				EDGE_MANUF_DESC_LEN,
 				(__u8 *)(&edge_serial->manuf_descriptor));
 
-	if (response < 1)
-		dev_err(dev, "error in getting manufacturer descriptor\n");
-	else {
+	if (response < 0) {
+		dev_err(dev, "error in getting manufacturer descriptor: %d\n",
+				response);
+	} else {
 		char string[30];
 		dev_dbg(dev, "**Manufacturer Descriptor\n");
 		dev_dbg(dev, "  RomSize:        %dK\n",
@@ -2644,9 +2661,10 @@ static void get_boot_desc(struct edgepor
 				EDGE_BOOT_DESC_LEN,
 				(__u8 *)(&edge_serial->boot_descriptor));
 
-	if (response < 1)
-		dev_err(dev, "error in getting boot descriptor\n");
-	else {
+	if (response < 0) {
+		dev_err(dev, "error in getting boot descriptor: %d\n",
+				response);
+	} else {
 		dev_dbg(dev, "**Boot Descriptor:\n");
 		dev_dbg(dev, "  BootCodeLength: %d\n",
 			le16_to_cpu(edge_serial->boot_descriptor.BootCodeLength));
@@ -2761,6 +2779,11 @@ static int edge_startup(struct usb_seria
 					EDGE_COMPATIBILITY_MASK1,
 					EDGE_COMPATIBILITY_MASK2 };
 
+	if (serial->num_bulk_in < 1 || serial->num_interrupt_in < 1) {
+		dev_err(&serial->interface->dev, "missing endpoints\n");
+		return -ENODEV;
+	}
+
 	dev = serial->dev;
 
 	/* create our private serial structure */
@@ -2784,7 +2807,7 @@ static int edge_startup(struct usb_seria
 	dev_info(&serial->dev->dev, "%s detected\n", edge_serial->name);
 
 	/* Read the epic descriptor */
-	if (get_epic_descriptor(edge_serial) <= 0) {
+	if (get_epic_descriptor(edge_serial) < 0) {
 		/* memcpy descriptor to Supports structures */
 		memcpy(&edge_serial->epic_descriptor.Supports, descriptor,
 		       sizeof(struct edge_compatibility_bits));
@@ -2856,14 +2879,16 @@ static int edge_startup(struct usb_seria
 				/* not set up yet, so do it now */
 				edge_serial->interrupt_read_urb =
 						usb_alloc_urb(0, GFP_KERNEL);
-				if (!edge_serial->interrupt_read_urb)
-					return -ENOMEM;
+				if (!edge_serial->interrupt_read_urb) {
+					response = -ENOMEM;
+					break;
+				}
 
 				edge_serial->interrupt_in_buffer =
 					kmalloc(buffer_size, GFP_KERNEL);
 				if (!edge_serial->interrupt_in_buffer) {
-					usb_free_urb(edge_serial->interrupt_read_urb);
-					return -ENOMEM;
+					response = -ENOMEM;
+					break;
 				}
 				edge_serial->interrupt_in_endpoint =
 						endpoint->bEndpointAddress;
@@ -2891,14 +2916,16 @@ static int edge_startup(struct usb_seria
 				/* not set up yet, so do it now */
 				edge_serial->read_urb =
 						usb_alloc_urb(0, GFP_KERNEL);
-				if (!edge_serial->read_urb)
-					return -ENOMEM;
+				if (!edge_serial->read_urb) {
+					response = -ENOMEM;
+					break;
+				}
 
 				edge_serial->bulk_in_buffer =
 					kmalloc(buffer_size, GFP_KERNEL);
 				if (!edge_serial->bulk_in_buffer) {
-					usb_free_urb(edge_serial->read_urb);
-					return -ENOMEM;
+					response = -ENOMEM;
+					break;
 				}
 				edge_serial->bulk_in_endpoint =
 						endpoint->bEndpointAddress;
@@ -2924,9 +2951,22 @@ static int edge_startup(struct usb_seria
 			}
 		}
 
-		if (!interrupt_in_found || !bulk_in_found || !bulk_out_found) {
-			dev_err(ddev, "Error - the proper endpoints were not found!\n");
-			return -ENODEV;
+		if (response || !interrupt_in_found || !bulk_in_found ||
+							!bulk_out_found) {
+			if (!response) {
+				dev_err(ddev, "expected endpoints not found\n");
+				response = -ENODEV;
+			}
+
+			usb_free_urb(edge_serial->interrupt_read_urb);
+			kfree(edge_serial->interrupt_in_buffer);
+
+			usb_free_urb(edge_serial->read_urb);
+			kfree(edge_serial->bulk_in_buffer);
+
+			kfree(edge_serial);
+
+			return response;
 		}
 
 		/* start interrupt read for this edgeport this interrupt will
@@ -2949,16 +2989,9 @@ static void edge_disconnect(struct usb_s
 {
 	struct edgeport_serial *edge_serial = usb_get_serial_data(serial);
 
-	/* stop reads and writes on all ports */
-	/* free up our endpoint stuff */
 	if (edge_serial->is_epic) {
 		usb_kill_urb(edge_serial->interrupt_read_urb);
-		usb_free_urb(edge_serial->interrupt_read_urb);
-		kfree(edge_serial->interrupt_in_buffer);
-
 		usb_kill_urb(edge_serial->read_urb);
-		usb_free_urb(edge_serial->read_urb);
-		kfree(edge_serial->bulk_in_buffer);
 	}
 }
 
@@ -2971,6 +3004,16 @@ static void edge_release(struct usb_seri
 {
 	struct edgeport_serial *edge_serial = usb_get_serial_data(serial);
 
+	if (edge_serial->is_epic) {
+		usb_kill_urb(edge_serial->interrupt_read_urb);
+		usb_free_urb(edge_serial->interrupt_read_urb);
+		kfree(edge_serial->interrupt_in_buffer);
+
+		usb_kill_urb(edge_serial->read_urb);
+		usb_free_urb(edge_serial->read_urb);
+		kfree(edge_serial->bulk_in_buffer);
+	}
+
 	kfree(edge_serial);
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/serial/io_ti.c linux-libre-4.4.107-gnu/drivers/usb/serial/io_ti.c
--- linux-libre-4.4-gnu/drivers/usb/serial/io_ti.c	2016-01-10 21:15:45.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/serial/io_ti.c	2017-12-20 11:45:05.000000000 -0500
@@ -1499,8 +1499,7 @@ static int do_boot_mode(struct edgeport_
 
 		dev_dbg(dev, "%s - Download successful -- Device rebooting...\n", __func__);
 
-		/* return an error on purpose */
-		return -ENODEV;
+		return 1;
 	}
 
 stayinbootmode:
@@ -1508,7 +1507,7 @@ stayinbootmode:
 	dev_dbg(dev, "%s - STAYING IN BOOT MODE\n", __func__);
 	serial->product_info.TiMode = TI_MODE_BOOT;
 
-	return 0;
+	return 1;
 }
 
 static int ti_do_config(struct edgeport_port *port, int feature, int on)
@@ -1675,6 +1674,12 @@ static void edge_interrupt_callback(stru
 	function    = TIUMP_GET_FUNC_FROM_CODE(data[0]);
 	dev_dbg(dev, "%s - port_number %d, function %d, info 0x%x\n", __func__,
 		port_number, function, data[1]);
+
+	if (port_number >= edge_serial->serial->num_ports) {
+		dev_err(dev, "bad port number %d\n", port_number);
+		goto exit;
+	}
+
 	port = edge_serial->serial->port[port_number];
 	edge_port = usb_get_serial_port_data(port);
 	if (!edge_port) {
@@ -1756,7 +1761,7 @@ static void edge_bulk_in_callback(struct
 
 	port_number = edge_port->port->port_number;
 
-	if (edge_port->lsr_event) {
+	if (urb->actual_length > 0 && edge_port->lsr_event) {
 		edge_port->lsr_event = 0;
 		dev_dbg(dev, "%s ===== Port %u LSR Status = %02x, Data = %02x ======\n",
 			__func__, port_number, edge_port->lsr_mask, *data);
@@ -2344,8 +2349,11 @@ static void change_port_settings(struct
 	if (!baud) {
 		/* pick a default, any default... */
 		baud = 9600;
-	} else
+	} else {
+		/* Avoid a zero divisor. */
+		baud = min(baud, 461550);
 		tty_encode_baud_rate(tty, baud, baud);
+	}
 
 	edge_port->baud_rate = baud;
 	config->wBaudRate = (__u16)((461550L + baud/2) / baud);
@@ -2549,6 +2557,13 @@ static int edge_startup(struct usb_seria
 	int status;
 	u16 product_id;
 
+	/* Make sure we have the required endpoints when in download mode. */
+	if (serial->interface->cur_altsetting->desc.bNumEndpoints > 1) {
+		if (serial->num_bulk_in < serial->num_ports ||
+				serial->num_bulk_out < serial->num_ports)
+			return -ENODEV;
+	}
+
 	/* create our private serial structure */
 	edge_serial = kzalloc(sizeof(struct edgeport_serial), GFP_KERNEL);
 	if (!edge_serial)
@@ -2556,14 +2571,18 @@ static int edge_startup(struct usb_seria
 
 	mutex_init(&edge_serial->es_lock);
 	edge_serial->serial = serial;
+	INIT_DELAYED_WORK(&edge_serial->heartbeat_work, edge_heartbeat_work);
 	usb_set_serial_data(serial, edge_serial);
 
 	status = download_fw(edge_serial);
-	if (status) {
+	if (status < 0) {
 		kfree(edge_serial);
 		return status;
 	}
 
+	if (status > 0)
+		return 1;	/* bind but do not register any ports */
+
 	product_id = le16_to_cpu(
 			edge_serial->serial->dev->descriptor.idProduct);
 
@@ -2575,7 +2594,6 @@ static int edge_startup(struct usb_seria
 		}
 	}
 
-	INIT_DELAYED_WORK(&edge_serial->heartbeat_work, edge_heartbeat_work);
 	edge_heartbeat_schedule(edge_serial);
 
 	return 0;
@@ -2583,6 +2601,9 @@ static int edge_startup(struct usb_seria
 
 static void edge_disconnect(struct usb_serial *serial)
 {
+	struct edgeport_serial *edge_serial = usb_get_serial_data(serial);
+
+	cancel_delayed_work_sync(&edge_serial->heartbeat_work);
 }
 
 static void edge_release(struct usb_serial *serial)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/serial/iuu_phoenix.c linux-libre-4.4.107-gnu/drivers/usb/serial/iuu_phoenix.c
--- linux-libre-4.4-gnu/drivers/usb/serial/iuu_phoenix.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/serial/iuu_phoenix.c	2017-12-20 04:05:01.000000000 -0500
@@ -68,6 +68,16 @@ struct iuu_private {
 	u32 clk;
 };
 
+static int iuu_attach(struct usb_serial *serial)
+{
+	unsigned char num_ports = serial->num_ports;
+
+	if (serial->num_bulk_in < num_ports || serial->num_bulk_out < num_ports)
+		return -ENODEV;
+
+	return 0;
+}
+
 static int iuu_port_probe(struct usb_serial_port *port)
 {
 	struct iuu_private *priv;
@@ -1196,6 +1206,7 @@ static struct usb_serial_driver iuu_devi
 	.tiocmset = iuu_tiocmset,
 	.set_termios = iuu_set_termios,
 	.init_termios = iuu_init_termios,
+	.attach = iuu_attach,
 	.port_probe = iuu_port_probe,
 	.port_remove = iuu_port_remove,
 };
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/serial/keyspan.c linux-libre-4.4.107-gnu/drivers/usb/serial/keyspan.c
--- linux-libre-4.4-gnu/drivers/usb/serial/keyspan.c	2016-01-10 21:15:16.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/serial/keyspan.c	2017-12-20 11:44:34.000000000 -0500
@@ -2376,6 +2376,10 @@ static void keyspan_release(struct usb_s
 
 	s_priv = usb_get_serial_data(serial);
 
+	/* Make sure to unlink the URBs submitted in attach. */
+	usb_kill_urb(s_priv->instat_urb);
+	usb_kill_urb(s_priv->indat_urb);
+
 	usb_free_urb(s_priv->instat_urb);
 	usb_free_urb(s_priv->indat_urb);
 	usb_free_urb(s_priv->glocont_urb);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/serial/keyspan_pda.c linux-libre-4.4.107-gnu/drivers/usb/serial/keyspan_pda.c
--- linux-libre-4.4-gnu/drivers/usb/serial/keyspan_pda.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/serial/keyspan_pda.c	2017-12-20 04:05:01.000000000 -0500
@@ -139,6 +139,7 @@ static void keyspan_pda_rx_interrupt(str
 {
 	struct usb_serial_port *port = urb->context;
 	unsigned char *data = urb->transfer_buffer;
+	unsigned int len = urb->actual_length;
 	int retval;
 	int status = urb->status;
 	struct keyspan_pda_private *priv;
@@ -159,18 +160,26 @@ static void keyspan_pda_rx_interrupt(str
 		goto exit;
 	}
 
+	if (len < 1) {
+		dev_warn(&port->dev, "short message received\n");
+		goto exit;
+	}
+
 	/* see if the message is data or a status interrupt */
 	switch (data[0]) {
 	case 0:
 		 /* rest of message is rx data */
-		if (urb->actual_length) {
-			tty_insert_flip_string(&port->port, data + 1,
-						urb->actual_length - 1);
-			tty_flip_buffer_push(&port->port);
-		}
+		if (len < 2)
+			break;
+		tty_insert_flip_string(&port->port, data + 1, len - 1);
+		tty_flip_buffer_push(&port->port);
 		break;
 	case 1:
 		/* status interrupt */
+		if (len < 3) {
+			dev_warn(&port->dev, "short interrupt message received\n");
+			break;
+		}
 		dev_dbg(&port->dev, "rx int, d1=%d, d2=%d\n", data[1], data[2]);
 		switch (data[1]) {
 		case 1: /* modemline change */
@@ -699,6 +708,19 @@ MODULE_FIRMWARE("keyspan_pda/keyspan_pda
 MODULE_FIRMWARE("keyspan_pda/xircom_pgs.fw");
 #endif
 
+static int keyspan_pda_attach(struct usb_serial *serial)
+{
+	unsigned char num_ports = serial->num_ports;
+
+	if (serial->num_bulk_out < num_ports ||
+			serial->num_interrupt_in < num_ports) {
+		dev_err(&serial->interface->dev, "missing endpoints\n");
+		return -ENODEV;
+	}
+
+	return 0;
+}
+
 static int keyspan_pda_port_probe(struct usb_serial_port *port)
 {
 
@@ -776,6 +798,7 @@ static struct usb_serial_driver keyspan_
 	.break_ctl =		keyspan_pda_break_ctl,
 	.tiocmget =		keyspan_pda_tiocmget,
 	.tiocmset =		keyspan_pda_tiocmset,
+	.attach =		keyspan_pda_attach,
 	.port_probe =		keyspan_pda_port_probe,
 	.port_remove =		keyspan_pda_port_remove,
 };
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/serial/kl5kusb105.c linux-libre-4.4.107-gnu/drivers/usb/serial/kl5kusb105.c
--- linux-libre-4.4-gnu/drivers/usb/serial/kl5kusb105.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/serial/kl5kusb105.c	2017-12-20 04:05:01.000000000 -0500
@@ -192,10 +192,11 @@ static int klsi_105_get_line_state(struc
 			     status_buf, KLSI_STATUSBUF_LEN,
 			     10000
 			     );
-	if (rc < 0)
-		dev_err(&port->dev, "Reading line status failed (error = %d)\n",
-			rc);
-	else {
+	if (rc != KLSI_STATUSBUF_LEN) {
+		dev_err(&port->dev, "reading line status failed: %d\n", rc);
+		if (rc >= 0)
+			rc = -EIO;
+	} else {
 		status = get_unaligned_le16(status_buf);
 
 		dev_info(&port->serial->dev->dev, "read status %x %x\n",
@@ -296,7 +297,7 @@ static int  klsi_105_open(struct tty_str
 	rc = usb_serial_generic_open(tty, port);
 	if (rc) {
 		retval = rc;
-		goto exit;
+		goto err_free_cfg;
 	}
 
 	rc = usb_control_msg(port->serial->dev,
@@ -311,21 +312,38 @@ static int  klsi_105_open(struct tty_str
 	if (rc < 0) {
 		dev_err(&port->dev, "Enabling read failed (error = %d)\n", rc);
 		retval = rc;
+		goto err_generic_close;
 	} else
 		dev_dbg(&port->dev, "%s - enabled reading\n", __func__);
 
 	rc = klsi_105_get_line_state(port, &line_state);
-	if (rc >= 0) {
-		spin_lock_irqsave(&priv->lock, flags);
-		priv->line_state = line_state;
-		spin_unlock_irqrestore(&priv->lock, flags);
-		dev_dbg(&port->dev, "%s - read line state 0x%lx\n", __func__, line_state);
-		retval = 0;
-	} else
+	if (rc < 0) {
 		retval = rc;
+		goto err_disable_read;
+	}
 
-exit:
+	spin_lock_irqsave(&priv->lock, flags);
+	priv->line_state = line_state;
+	spin_unlock_irqrestore(&priv->lock, flags);
+	dev_dbg(&port->dev, "%s - read line state 0x%lx\n", __func__,
+			line_state);
+
+	return 0;
+
+err_disable_read:
+	usb_control_msg(port->serial->dev,
+			     usb_sndctrlpipe(port->serial->dev, 0),
+			     KL5KUSB105A_SIO_CONFIGURE,
+			     USB_TYPE_VENDOR | USB_DIR_OUT,
+			     KL5KUSB105A_SIO_CONFIGURE_READ_OFF,
+			     0, /* index */
+			     NULL, 0,
+			     KLSI_TIMEOUT);
+err_generic_close:
+	usb_serial_generic_close(port);
+err_free_cfg:
 	kfree(cfg);
+
 	return retval;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/serial/kobil_sct.c linux-libre-4.4.107-gnu/drivers/usb/serial/kobil_sct.c
--- linux-libre-4.4-gnu/drivers/usb/serial/kobil_sct.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/serial/kobil_sct.c	2017-12-20 04:05:01.000000000 -0500
@@ -51,6 +51,7 @@
 
 
 /* Function prototypes */
+static int kobil_attach(struct usb_serial *serial);
 static int kobil_port_probe(struct usb_serial_port *probe);
 static int kobil_port_remove(struct usb_serial_port *probe);
 static int  kobil_open(struct tty_struct *tty, struct usb_serial_port *port);
@@ -86,6 +87,7 @@ static struct usb_serial_driver kobil_de
 	.description =		"KOBIL USB smart card terminal",
 	.id_table =		id_table,
 	.num_ports =		1,
+	.attach =		kobil_attach,
 	.port_probe =		kobil_port_probe,
 	.port_remove =		kobil_port_remove,
 	.ioctl =		kobil_ioctl,
@@ -113,6 +115,16 @@ struct kobil_private {
 };
 
 
+static int kobil_attach(struct usb_serial *serial)
+{
+	if (serial->num_interrupt_out < serial->num_ports) {
+		dev_err(&serial->interface->dev, "missing interrupt-out endpoint\n");
+		return -ENODEV;
+	}
+
+	return 0;
+}
+
 static int kobil_port_probe(struct usb_serial_port *port)
 {
 	struct usb_serial *serial = port->serial;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/serial/mct_u232.c linux-libre-4.4.107-gnu/drivers/usb/serial/mct_u232.c
--- linux-libre-4.4-gnu/drivers/usb/serial/mct_u232.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/serial/mct_u232.c	2017-12-20 04:05:01.000000000 -0500
@@ -189,7 +189,7 @@ static int mct_u232_set_baud_rate(struct
 		return -ENOMEM;
 
 	divisor = mct_u232_calculate_baud_rate(serial, value, &speed);
-	put_unaligned_le32(cpu_to_le32(divisor), buf);
+	put_unaligned_le32(divisor, buf);
 	rc = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0),
 				MCT_U232_SET_BAUD_RATE_REQUEST,
 				MCT_U232_SET_REQUEST_TYPE,
@@ -322,8 +322,12 @@ static int mct_u232_get_modem_stat(struc
 			MCT_U232_GET_REQUEST_TYPE,
 			0, 0, buf, MCT_U232_GET_MODEM_STAT_SIZE,
 			WDR_TIMEOUT);
-	if (rc < 0) {
+	if (rc < MCT_U232_GET_MODEM_STAT_SIZE) {
 		dev_err(&port->dev, "Get MODEM STATus failed (error = %d)\n", rc);
+
+		if (rc >= 0)
+			rc = -EIO;
+
 		*msr = 0;
 	} else {
 		*msr = buf[0];
@@ -376,14 +380,21 @@ static void mct_u232_msr_to_state(struct
 
 static int mct_u232_port_probe(struct usb_serial_port *port)
 {
+	struct usb_serial *serial = port->serial;
 	struct mct_u232_private *priv;
 
+	/* check first to simplify error handling */
+	if (!serial->port[1] || !serial->port[1]->interrupt_in_urb) {
+		dev_err(&port->dev, "expected endpoint missing\n");
+		return -ENODEV;
+	}
+
 	priv = kzalloc(sizeof(*priv), GFP_KERNEL);
 	if (!priv)
 		return -ENOMEM;
 
 	/* Use second interrupt-in endpoint for reading. */
-	priv->read_urb = port->serial->port[1]->interrupt_in_urb;
+	priv->read_urb = serial->port[1]->interrupt_in_urb;
 	priv->read_urb->context = port;
 
 	spin_lock_init(&priv->lock);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/serial/metro-usb.c linux-libre-4.4.107-gnu/drivers/usb/serial/metro-usb.c
--- linux-libre-4.4-gnu/drivers/usb/serial/metro-usb.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/serial/metro-usb.c	2017-12-20 04:05:01.000000000 -0500
@@ -45,6 +45,7 @@ struct metrousb_private {
 static const struct usb_device_id id_table[] = {
 	{ USB_DEVICE(FOCUS_VENDOR_ID, FOCUS_PRODUCT_ID_BI) },
 	{ USB_DEVICE(FOCUS_VENDOR_ID, FOCUS_PRODUCT_ID_UNI) },
+	{ USB_DEVICE_INTERFACE_CLASS(0x0c2e, 0x0730, 0xff) },	/* MS7820 */
 	{ }, /* Terminating entry. */
 };
 MODULE_DEVICE_TABLE(usb, id_table);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/serial/mos7720.c linux-libre-4.4.107-gnu/drivers/usb/serial/mos7720.c
--- linux-libre-4.4-gnu/drivers/usb/serial/mos7720.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/serial/mos7720.c	2017-12-20 04:05:01.000000000 -0500
@@ -65,8 +65,6 @@ struct moschip_port {
 	struct urb		*write_urb_pool[NUM_URBS];
 };
 
-static struct usb_serial_driver moschip7720_2port_driver;
-
 #define USB_VENDOR_ID_MOSCHIP		0x9710
 #define MOSCHIP_DEVICE_ID_7720		0x7720
 #define MOSCHIP_DEVICE_ID_7715		0x7715
@@ -236,11 +234,16 @@ static int read_mos_reg(struct usb_seria
 
 	status = usb_control_msg(usbdev, pipe, request, requesttype, value,
 				     index, buf, 1, MOS_WDR_TIMEOUT);
-	if (status == 1)
+	if (status == 1) {
 		*data = *buf;
-	else if (status < 0)
+	} else {
 		dev_err(&usbdev->dev,
 			"mos7720: usb_control_msg() failed: %d\n", status);
+		if (status >= 0)
+			status = -EIO;
+		*data = 0;
+	}
+
 	kfree(buf);
 
 	return status;
@@ -970,25 +973,6 @@ static void mos7720_bulk_out_data_callba
 		tty_port_tty_wakeup(&mos7720_port->port->port);
 }
 
-/*
- * mos77xx_probe
- *	this function installs the appropriate read interrupt endpoint callback
- *	depending on whether the device is a 7720 or 7715, thus avoiding costly
- *	run-time checks in the high-frequency callback routine itself.
- */
-static int mos77xx_probe(struct usb_serial *serial,
-			 const struct usb_device_id *id)
-{
-	if (id->idProduct == MOSCHIP_DEVICE_ID_7715)
-		moschip7720_2port_driver.read_int_callback =
-			mos7715_interrupt_callback;
-	else
-		moschip7720_2port_driver.read_int_callback =
-			mos7720_interrupt_callback;
-
-	return 0;
-}
-
 static int mos77xx_calc_num_ports(struct usb_serial *serial)
 {
 	u16 product = le16_to_cpu(serial->dev->descriptor.idProduct);
@@ -1252,7 +1236,7 @@ static int mos7720_write(struct tty_stru
 
 	if (urb->transfer_buffer == NULL) {
 		urb->transfer_buffer = kmalloc(URB_TRANSFER_BUFFER_SIZE,
-					       GFP_KERNEL);
+					       GFP_ATOMIC);
 		if (!urb->transfer_buffer)
 			goto exit;
 	}
@@ -1920,6 +1904,11 @@ static int mos7720_startup(struct usb_se
 	u16 product;
 	int ret_val;
 
+	if (serial->num_bulk_in < 2 || serial->num_bulk_out < 2) {
+		dev_err(&serial->interface->dev, "missing bulk endpoints\n");
+		return -ENODEV;
+	}
+
 	product = le16_to_cpu(serial->dev->descriptor.idProduct);
 	dev = serial->dev;
 
@@ -1944,19 +1933,18 @@ static int mos7720_startup(struct usb_se
 			tmp->interrupt_in_endpointAddress;
 		serial->port[1]->interrupt_in_urb = NULL;
 		serial->port[1]->interrupt_in_buffer = NULL;
+
+		if (serial->port[0]->interrupt_in_urb) {
+			struct urb *urb = serial->port[0]->interrupt_in_urb;
+
+			urb->complete = mos7715_interrupt_callback;
+		}
 	}
 
 	/* setting configuration feature to one */
 	usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0),
 			(__u8)0x03, 0x00, 0x01, 0x00, NULL, 0x00, 5000);
 
-	/* start the interrupt urb */
-	ret_val = usb_submit_urb(serial->port[0]->interrupt_in_urb, GFP_KERNEL);
-	if (ret_val)
-		dev_err(&dev->dev,
-			"%s - Error %d submitting control urb\n",
-			__func__, ret_val);
-
 #ifdef CONFIG_USB_SERIAL_MOS7715_PARPORT
 	if (product == MOSCHIP_DEVICE_ID_7715) {
 		ret_val = mos7715_parport_init(serial);
@@ -1964,6 +1952,13 @@ static int mos7720_startup(struct usb_se
 			return ret_val;
 	}
 #endif
+	/* start the interrupt urb */
+	ret_val = usb_submit_urb(serial->port[0]->interrupt_in_urb, GFP_KERNEL);
+	if (ret_val) {
+		dev_err(&dev->dev, "failed to submit interrupt urb: %d\n",
+			ret_val);
+	}
+
 	/* LSR For Port 1 */
 	read_mos_reg(serial, 0, MOS7720_LSR, &data);
 	dev_dbg(&dev->dev, "LSR:%x\n", data);
@@ -1973,6 +1968,8 @@ static int mos7720_startup(struct usb_se
 
 static void mos7720_release(struct usb_serial *serial)
 {
+	usb_kill_urb(serial->port[0]->interrupt_in_urb);
+
 #ifdef CONFIG_USB_SERIAL_MOS7715_PARPORT
 	/* close the parallel port */
 
@@ -2007,6 +2004,7 @@ static void mos7720_release(struct usb_s
 				    urblist_entry)
 			usb_unlink_urb(urbtrack->urb);
 		spin_unlock_irqrestore(&mos_parport->listlock, flags);
+		parport_del_port(mos_parport->pp);
 
 		kref_put(&mos_parport->ref_count, destroy_mos_parport);
 	}
@@ -2055,7 +2053,6 @@ static struct usb_serial_driver moschip7
 	.close			= mos7720_close,
 	.throttle		= mos7720_throttle,
 	.unthrottle		= mos7720_unthrottle,
-	.probe			= mos77xx_probe,
 	.attach			= mos7720_startup,
 	.release		= mos7720_release,
 	.port_probe		= mos7720_port_probe,
@@ -2069,7 +2066,7 @@ static struct usb_serial_driver moschip7
 	.chars_in_buffer	= mos7720_chars_in_buffer,
 	.break_ctl		= mos7720_break,
 	.read_bulk_callback	= mos7720_bulk_in_callback,
-	.read_int_callback	= NULL  /* dynamically assigned in probe() */
+	.read_int_callback	= mos7720_interrupt_callback,
 };
 
 static struct usb_serial_driver * const serial_drivers[] = {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/serial/mos7840.c linux-libre-4.4.107-gnu/drivers/usb/serial/mos7840.c
--- linux-libre-4.4-gnu/drivers/usb/serial/mos7840.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/serial/mos7840.c	2017-12-20 04:05:01.000000000 -0500
@@ -285,9 +285,15 @@ static int mos7840_get_reg_sync(struct u
 	ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), MCS_RDREQ,
 			      MCS_RD_RTYPE, 0, reg, buf, VENDOR_READ_LENGTH,
 			      MOS_WDR_TIMEOUT);
+	if (ret < VENDOR_READ_LENGTH) {
+		if (ret >= 0)
+			ret = -EIO;
+		goto out;
+	}
+
 	*val = buf[0];
 	dev_dbg(&port->dev, "%s offset is %x, return val %x\n", __func__, reg, *val);
-
+out:
 	kfree(buf);
 	return ret;
 }
@@ -353,8 +359,13 @@ static int mos7840_get_uart_reg(struct u
 	ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), MCS_RDREQ,
 			      MCS_RD_RTYPE, Wval, reg, buf, VENDOR_READ_LENGTH,
 			      MOS_WDR_TIMEOUT);
+	if (ret < VENDOR_READ_LENGTH) {
+		if (ret >= 0)
+			ret = -EIO;
+		goto out;
+	}
 	*val = buf[0];
-
+out:
 	kfree(buf);
 	return ret;
 }
@@ -1024,6 +1035,7 @@ static int mos7840_open(struct tty_struc
 	 * (can't set it up in mos7840_startup as the structures *
 	 * were not set up at that time.)                        */
 	if (port0->open_ports == 1) {
+		/* FIXME: Buffer never NULL, so URB is not submitted. */
 		if (serial->port[0]->interrupt_in_buffer == NULL) {
 			/* set up interrupt urb */
 			usb_fill_int_urb(serial->port[0]->interrupt_in_urb,
@@ -1340,8 +1352,8 @@ static int mos7840_write(struct tty_stru
 	}
 
 	if (urb->transfer_buffer == NULL) {
-		urb->transfer_buffer =
-		    kmalloc(URB_TRANSFER_BUFFER_SIZE, GFP_KERNEL);
+		urb->transfer_buffer = kmalloc(URB_TRANSFER_BUFFER_SIZE,
+					       GFP_ATOMIC);
 		if (!urb->transfer_buffer)
 			goto exit;
 	}
@@ -1489,10 +1501,10 @@ static int mos7840_tiocmget(struct tty_s
 		return -ENODEV;
 
 	status = mos7840_get_uart_reg(port, MODEM_STATUS_REGISTER, &msr);
-	if (status != 1)
+	if (status < 0)
 		return -EIO;
 	status = mos7840_get_uart_reg(port, MODEM_CONTROL_REGISTER, &mcr);
-	if (status != 1)
+	if (status < 0)
 		return -EIO;
 	result = ((mcr & MCR_DTR) ? TIOCM_DTR : 0)
 	    | ((mcr & MCR_RTS) ? TIOCM_RTS : 0)
@@ -2116,6 +2128,18 @@ static int mos7840_calc_num_ports(struct
 	return mos7840_num_ports;
 }
 
+static int mos7840_attach(struct usb_serial *serial)
+{
+	if (serial->num_bulk_in < serial->num_ports ||
+			serial->num_bulk_out < serial->num_ports ||
+			serial->num_interrupt_in < 1) {
+		dev_err(&serial->interface->dev, "missing endpoints\n");
+		return -ENODEV;
+	}
+
+	return 0;
+}
+
 static int mos7840_port_probe(struct usb_serial_port *port)
 {
 	struct usb_serial *serial = port->serial;
@@ -2391,6 +2415,7 @@ static struct usb_serial_driver moschip7
 	.tiocmset = mos7840_tiocmset,
 	.tiocmiwait = usb_serial_generic_tiocmiwait,
 	.get_icount = usb_serial_generic_get_icount,
+	.attach = mos7840_attach,
 	.port_probe = mos7840_port_probe,
 	.port_remove = mos7840_port_remove,
 	.read_bulk_callback = mos7840_bulk_in_callback,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/serial/mxuport.c linux-libre-4.4.107-gnu/drivers/usb/serial/mxuport.c
--- linux-libre-4.4-gnu/drivers/usb/serial/mxuport.c	2016-01-10 21:15:48.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/serial/mxuport.c	2017-12-20 11:45:12.000000000 -0500
@@ -1259,6 +1259,15 @@ static int mxuport_attach(struct usb_ser
 	return 0;
 }
 
+static void mxuport_release(struct usb_serial *serial)
+{
+	struct usb_serial_port *port0 = serial->port[0];
+	struct usb_serial_port *port1 = serial->port[1];
+
+	usb_serial_generic_close(port1);
+	usb_serial_generic_close(port0);
+}
+
 static int mxuport_open(struct tty_struct *tty, struct usb_serial_port *port)
 {
 	struct mxuport_port *mxport = usb_get_serial_port_data(port);
@@ -1361,6 +1370,7 @@ static struct usb_serial_driver mxuport_
 	.probe			= mxuport_probe,
 	.port_probe		= mxuport_port_probe,
 	.attach			= mxuport_attach,
+	.release		= mxuport_release,
 	.calc_num_ports		= mxuport_calc_num_ports,
 	.open			= mxuport_open,
 	.close			= mxuport_close,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/serial/omninet.c linux-libre-4.4.107-gnu/drivers/usb/serial/omninet.c
--- linux-libre-4.4-gnu/drivers/usb/serial/omninet.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/serial/omninet.c	2017-12-20 04:05:01.000000000 -0500
@@ -38,6 +38,7 @@ static int  omninet_write(struct tty_str
 				const unsigned char *buf, int count);
 static int  omninet_write_room(struct tty_struct *tty);
 static void omninet_disconnect(struct usb_serial *serial);
+static int omninet_attach(struct usb_serial *serial);
 static int omninet_port_probe(struct usb_serial_port *port);
 static int omninet_port_remove(struct usb_serial_port *port);
 
@@ -56,6 +57,7 @@ static struct usb_serial_driver zyxel_om
 	.description =		"ZyXEL - omni.net lcd plus usb",
 	.id_table =		id_table,
 	.num_ports =		1,
+	.attach =		omninet_attach,
 	.port_probe =		omninet_port_probe,
 	.port_remove =		omninet_port_remove,
 	.open =			omninet_open,
@@ -104,6 +106,17 @@ struct omninet_data {
 	__u8	od_outseq;	/* Sequence number for bulk_out URBs */
 };
 
+static int omninet_attach(struct usb_serial *serial)
+{
+	/* The second bulk-out endpoint is used for writing. */
+	if (serial->num_bulk_out < 2) {
+		dev_err(&serial->interface->dev, "missing endpoints\n");
+		return -ENODEV;
+	}
+
+	return 0;
+}
+
 static int omninet_port_probe(struct usb_serial_port *port)
 {
 	struct omninet_data *od;
@@ -129,12 +142,6 @@ static int omninet_port_remove(struct us
 
 static int omninet_open(struct tty_struct *tty, struct usb_serial_port *port)
 {
-	struct usb_serial	*serial = port->serial;
-	struct usb_serial_port	*wport;
-
-	wport = serial->port[1];
-	tty_port_tty_set(&wport->port, tty);
-
 	return usb_serial_generic_open(tty, port);
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/serial/opticon.c linux-libre-4.4.107-gnu/drivers/usb/serial/opticon.c
--- linux-libre-4.4-gnu/drivers/usb/serial/opticon.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/serial/opticon.c	2017-12-20 04:05:01.000000000 -0500
@@ -142,7 +142,7 @@ static int opticon_open(struct tty_struc
 	usb_clear_halt(port->serial->dev, port->read_urb->pipe);
 
 	res = usb_serial_generic_open(tty, port);
-	if (!res)
+	if (res)
 		return res;
 
 	/* Request CTS line state, sometimes during opening the current
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/serial/option.c linux-libre-4.4.107-gnu/drivers/usb/serial/option.c
--- linux-libre-4.4-gnu/drivers/usb/serial/option.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/serial/option.c	2017-12-20 04:05:01.000000000 -0500
@@ -233,6 +233,15 @@ static void option_instat_callback(struc
 #define BANDRICH_PRODUCT_1012			0x1012
 
 #define QUALCOMM_VENDOR_ID			0x05C6
+/* These Quectel products use Qualcomm's vendor ID */
+#define QUECTEL_PRODUCT_UC20			0x9003
+#define QUECTEL_PRODUCT_UC15			0x9090
+
+#define QUECTEL_VENDOR_ID			0x2c7c
+/* These Quectel products use Quectel's vendor ID */
+#define QUECTEL_PRODUCT_EC21			0x0121
+#define QUECTEL_PRODUCT_EC25			0x0125
+#define QUECTEL_PRODUCT_BG96			0x0296
 
 #define CMOTECH_VENDOR_ID			0x16d8
 #define CMOTECH_PRODUCT_6001			0x6001
@@ -268,8 +277,21 @@ static void option_instat_callback(struc
 #define TELIT_PRODUCT_CC864_SINGLE		0x1006
 #define TELIT_PRODUCT_DE910_DUAL		0x1010
 #define TELIT_PRODUCT_UE910_V2			0x1012
+#define TELIT_PRODUCT_LE922_USBCFG1		0x1040
+#define TELIT_PRODUCT_LE922_USBCFG2		0x1041
+#define TELIT_PRODUCT_LE922_USBCFG0		0x1042
+#define TELIT_PRODUCT_LE922_USBCFG3		0x1043
+#define TELIT_PRODUCT_LE922_USBCFG5		0x1045
+#define TELIT_PRODUCT_ME910			0x1100
 #define TELIT_PRODUCT_LE920			0x1200
 #define TELIT_PRODUCT_LE910			0x1201
+#define TELIT_PRODUCT_LE910_USBCFG4		0x1206
+#define TELIT_PRODUCT_LE920A4_1207		0x1207
+#define TELIT_PRODUCT_LE920A4_1208		0x1208
+#define TELIT_PRODUCT_LE920A4_1211		0x1211
+#define TELIT_PRODUCT_LE920A4_1212		0x1212
+#define TELIT_PRODUCT_LE920A4_1213		0x1213
+#define TELIT_PRODUCT_LE920A4_1214		0x1214
 
 /* ZTE PRODUCTS */
 #define ZTE_VENDOR_ID				0x19d2
@@ -313,6 +335,7 @@ static void option_instat_callback(struc
 #define TOSHIBA_PRODUCT_G450			0x0d45
 
 #define ALINK_VENDOR_ID				0x1e0e
+#define SIMCOM_PRODUCT_SIM7100E			0x9001 /* Yes, ALINK_VENDOR_ID */
 #define ALINK_PRODUCT_PH300			0x9100
 #define ALINK_PRODUCT_3GU			0x9200
 
@@ -371,18 +394,22 @@ static void option_instat_callback(struc
 #define HAIER_PRODUCT_CE81B			0x10f8
 #define HAIER_PRODUCT_CE100			0x2009
 
-/* Cinterion (formerly Siemens) products */
-#define SIEMENS_VENDOR_ID				0x0681
-#define CINTERION_VENDOR_ID				0x1e2d
+/* Gemalto's Cinterion products (formerly Siemens) */
+#define SIEMENS_VENDOR_ID			0x0681
+#define CINTERION_VENDOR_ID			0x1e2d
+#define CINTERION_PRODUCT_HC25_MDMNET		0x0040
 #define CINTERION_PRODUCT_HC25_MDM		0x0047
-#define CINTERION_PRODUCT_HC25_MDMNET	0x0040
+#define CINTERION_PRODUCT_HC28_MDMNET		0x004A /* same for HC28J */
 #define CINTERION_PRODUCT_HC28_MDM		0x004C
-#define CINTERION_PRODUCT_HC28_MDMNET	0x004A /* same for HC28J */
 #define CINTERION_PRODUCT_EU3_E			0x0051
 #define CINTERION_PRODUCT_EU3_P			0x0052
 #define CINTERION_PRODUCT_PH8			0x0053
 #define CINTERION_PRODUCT_AHXX			0x0055
 #define CINTERION_PRODUCT_PLXX			0x0060
+#define CINTERION_PRODUCT_PH8_2RMNET		0x0082
+#define CINTERION_PRODUCT_PH8_AUDIO		0x0083
+#define CINTERION_PRODUCT_AHXX_2RMNET		0x0084
+#define CINTERION_PRODUCT_AHXX_AUDIO		0x0085
 
 /* Olivetti products */
 #define OLIVETTI_VENDOR_ID			0x0b3c
@@ -496,6 +523,7 @@ static void option_instat_callback(struc
 
 /* TP-LINK Incorporated products */
 #define TPLINK_VENDOR_ID			0x2357
+#define TPLINK_PRODUCT_LTE			0x000D
 #define TPLINK_PRODUCT_MA180			0x0201
 
 /* Changhong products */
@@ -510,6 +538,12 @@ static void option_instat_callback(struc
 #define VIATELECOM_VENDOR_ID			0x15eb
 #define VIATELECOM_PRODUCT_CDS7			0x0001
 
+/* WeTelecom products */
+#define WETELECOM_VENDOR_ID			0x22de
+#define WETELECOM_PRODUCT_WMD200		0x6801
+#define WETELECOM_PRODUCT_6802			0x6802
+#define WETELECOM_PRODUCT_WMD300		0x6803
+
 struct option_blacklist_info {
 	/* bitmask of interface numbers blacklisted for send_setup */
 	const unsigned long sendsetup;
@@ -605,6 +639,15 @@ static const struct option_blacklist_inf
 	.reserved = BIT(3) | BIT(4),
 };
 
+static const struct option_blacklist_info simcom_sim7100e_blacklist = {
+	.reserved = BIT(5) | BIT(6),
+};
+
+static const struct option_blacklist_info telit_me910_blacklist = {
+	.sendsetup = BIT(0),
+	.reserved = BIT(1) | BIT(3),
+};
+
 static const struct option_blacklist_info telit_le910_blacklist = {
 	.sendsetup = BIT(0),
 	.reserved = BIT(1) | BIT(2),
@@ -615,6 +658,25 @@ static const struct option_blacklist_inf
 	.reserved = BIT(1) | BIT(5),
 };
 
+static const struct option_blacklist_info telit_le920a4_blacklist_1 = {
+	.sendsetup = BIT(0),
+	.reserved = BIT(1),
+};
+
+static const struct option_blacklist_info telit_le922_blacklist_usbcfg0 = {
+	.sendsetup = BIT(2),
+	.reserved = BIT(0) | BIT(1) | BIT(3),
+};
+
+static const struct option_blacklist_info telit_le922_blacklist_usbcfg3 = {
+	.sendsetup = BIT(0),
+	.reserved = BIT(1) | BIT(2) | BIT(3),
+};
+
+static const struct option_blacklist_info cinterion_rmnet2_blacklist = {
+	.reserved = BIT(4) | BIT(5),
+};
+
 static const struct usb_device_id option_ids[] = {
 	{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COLT) },
 	{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA) },
@@ -1110,9 +1172,22 @@ static const struct usb_device_id option
 	{ USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_PRODUCT_KPC650) },
 	{ USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_PRODUCT_KPC680) },
 	{ USB_DEVICE(QUALCOMM_VENDOR_ID, 0x6000)}, /* ZTE AC8700 */
+	{ USB_DEVICE_AND_INTERFACE_INFO(QUALCOMM_VENDOR_ID, 0x6001, 0xff, 0xff, 0xff), /* 4G LTE usb-modem U901 */
+	  .driver_info = (kernel_ulong_t)&net_intf3_blacklist },
 	{ USB_DEVICE(QUALCOMM_VENDOR_ID, 0x6613)}, /* Onda H600/ZTE MF330 */
 	{ USB_DEVICE(QUALCOMM_VENDOR_ID, 0x0023)}, /* ONYX 3G device */
 	{ USB_DEVICE(QUALCOMM_VENDOR_ID, 0x9000)}, /* SIMCom SIM5218 */
+	/* Quectel products using Qualcomm vendor ID */
+	{ USB_DEVICE(QUALCOMM_VENDOR_ID, QUECTEL_PRODUCT_UC15)},
+	{ USB_DEVICE(QUALCOMM_VENDOR_ID, QUECTEL_PRODUCT_UC20),
+	  .driver_info = (kernel_ulong_t)&net_intf4_blacklist },
+	/* Quectel products using Quectel vendor ID */
+	{ USB_DEVICE(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EC21),
+	  .driver_info = (kernel_ulong_t)&net_intf4_blacklist },
+	{ USB_DEVICE(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EC25),
+	  .driver_info = (kernel_ulong_t)&net_intf4_blacklist },
+	{ USB_DEVICE(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_BG96),
+	  .driver_info = (kernel_ulong_t)&net_intf4_blacklist },
 	{ USB_DEVICE(CMOTECH_VENDOR_ID, CMOTECH_PRODUCT_6001) },
 	{ USB_DEVICE(CMOTECH_VENDOR_ID, CMOTECH_PRODUCT_CMU_300) },
 	{ USB_DEVICE(CMOTECH_VENDOR_ID, CMOTECH_PRODUCT_6003),
@@ -1160,10 +1235,34 @@ static const struct usb_device_id option
 	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_CC864_SINGLE) },
 	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_DE910_DUAL) },
 	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_UE910_V2) },
+	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE922_USBCFG0),
+		.driver_info = (kernel_ulong_t)&telit_le922_blacklist_usbcfg0 },
+	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE922_USBCFG1),
+		.driver_info = (kernel_ulong_t)&telit_le910_blacklist },
+	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE922_USBCFG2),
+		.driver_info = (kernel_ulong_t)&telit_le922_blacklist_usbcfg3 },
+	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE922_USBCFG3),
+		.driver_info = (kernel_ulong_t)&telit_le922_blacklist_usbcfg3 },
+	{ USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, TELIT_PRODUCT_LE922_USBCFG5, 0xff),
+		.driver_info = (kernel_ulong_t)&telit_le922_blacklist_usbcfg0 },
+	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_ME910),
+		.driver_info = (kernel_ulong_t)&telit_me910_blacklist },
 	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE910),
 		.driver_info = (kernel_ulong_t)&telit_le910_blacklist },
+	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE910_USBCFG4),
+		.driver_info = (kernel_ulong_t)&telit_le922_blacklist_usbcfg3 },
 	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE920),
 		.driver_info = (kernel_ulong_t)&telit_le920_blacklist },
+	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE920A4_1207) },
+	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE920A4_1208),
+		.driver_info = (kernel_ulong_t)&telit_le920a4_blacklist_1 },
+	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE920A4_1211),
+		.driver_info = (kernel_ulong_t)&telit_le922_blacklist_usbcfg3 },
+	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE920A4_1212),
+		.driver_info = (kernel_ulong_t)&telit_le920a4_blacklist_1 },
+	{ USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, TELIT_PRODUCT_LE920A4_1213, 0xff) },
+	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE920A4_1214),
+		.driver_info = (kernel_ulong_t)&telit_le922_blacklist_usbcfg3 },
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, ZTE_PRODUCT_MF622, 0xff, 0xff, 0xff) }, /* ZTE WCDMA products */
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0002, 0xff, 0xff, 0xff),
 		.driver_info = (kernel_ulong_t)&net_intf1_blacklist },
@@ -1574,7 +1673,79 @@ static const struct usb_device_id option
 		.driver_info = (kernel_ulong_t)&net_intf3_blacklist },
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0178, 0xff, 0xff, 0xff),
 		.driver_info = (kernel_ulong_t)&net_intf3_blacklist },
-	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xffe9, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff42, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff43, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff44, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff45, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff46, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff47, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff48, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff49, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff4a, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff4b, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff4c, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff4d, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff4e, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff4f, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff50, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff51, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff52, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff53, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff54, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff55, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff56, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff57, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff58, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff59, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff5a, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff5b, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff5c, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff5d, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff5e, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff5f, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff60, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff61, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff62, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff63, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff64, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff65, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff66, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff67, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff68, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff69, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff6a, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff6b, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff6c, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff6d, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff6e, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff6f, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff70, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff71, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff72, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff73, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff74, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff75, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff76, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff77, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff78, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff79, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff7a, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff7b, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff7c, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff7d, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff7e, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff7f, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff80, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff81, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff82, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff83, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff84, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff85, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff86, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff87, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff88, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff89, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff8a, 0xff, 0xff, 0xff) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff8b, 0xff, 0xff, 0xff) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff8c, 0xff, 0xff, 0xff) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff8d, 0xff, 0xff, 0xff) },
@@ -1585,6 +1756,61 @@ static const struct usb_device_id option
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff92, 0xff, 0xff, 0xff) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff93, 0xff, 0xff, 0xff) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff94, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff9f, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xffa0, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xffa1, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xffa2, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xffa3, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xffa4, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xffa5, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xffa6, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xffa7, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xffa8, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xffa9, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xffaa, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xffab, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xffac, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xffae, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xffaf, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xffb0, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xffb1, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xffb2, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xffb3, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xffb4, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xffb5, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xffb6, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xffb7, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xffb8, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xffb9, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xffba, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xffbb, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xffbc, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xffbd, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xffbe, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xffbf, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xffc0, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xffc1, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xffc2, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xffc3, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xffc4, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xffc5, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xffc6, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xffc7, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xffc8, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xffc9, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xffca, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xffcb, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xffcc, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xffcd, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xffce, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xffcf, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xffd0, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xffd1, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xffd2, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xffd3, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xffd4, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xffd5, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xffe9, 0xff, 0xff, 0xff) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xffec, 0xff, 0xff, 0xff) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xffee, 0xff, 0xff, 0xff) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xfff6, 0xff, 0xff, 0xff) },
@@ -1629,6 +1855,8 @@ static const struct usb_device_id option
 	{ USB_DEVICE(ALINK_VENDOR_ID, 0x9000) },
 	{ USB_DEVICE(ALINK_VENDOR_ID, ALINK_PRODUCT_PH300) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(ALINK_VENDOR_ID, ALINK_PRODUCT_3GU, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE(ALINK_VENDOR_ID, SIMCOM_PRODUCT_SIM7100E),
+	  .driver_info = (kernel_ulong_t)&simcom_sim7100e_blacklist },
 	{ USB_DEVICE(ALCATEL_VENDOR_ID, ALCATEL_PRODUCT_X060S_X200),
 	  .driver_info = (kernel_ulong_t)&alcatel_x200_blacklist
 	},
@@ -1653,6 +1881,10 @@ static const struct usb_device_id option
 	  .driver_info = (kernel_ulong_t)&four_g_w100_blacklist
 	},
 	{ USB_DEVICE_INTERFACE_CLASS(LONGCHEER_VENDOR_ID, SPEEDUP_PRODUCT_SU9800, 0xff) },
+	{ USB_DEVICE_INTERFACE_CLASS(LONGCHEER_VENDOR_ID, 0x9801, 0xff),
+	  .driver_info = (kernel_ulong_t)&net_intf3_blacklist },
+	{ USB_DEVICE_INTERFACE_CLASS(LONGCHEER_VENDOR_ID, 0x9803, 0xff),
+	  .driver_info = (kernel_ulong_t)&net_intf4_blacklist },
 	{ USB_DEVICE(LONGCHEER_VENDOR_ID, ZOOM_PRODUCT_4597) },
 	{ USB_DEVICE(LONGCHEER_VENDOR_ID, IBALL_3_5G_CONNECT) },
 	{ USB_DEVICE(HAIER_VENDOR_ID, HAIER_PRODUCT_CE100) },
@@ -1679,10 +1911,16 @@ static const struct usb_device_id option
 	{ USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_EU3_P) },
 	{ USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_PH8),
 		.driver_info = (kernel_ulong_t)&net_intf4_blacklist },
-	{ USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_AHXX) },
+	{ USB_DEVICE_INTERFACE_CLASS(CINTERION_VENDOR_ID, CINTERION_PRODUCT_AHXX, 0xff) },
 	{ USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_PLXX),
 		.driver_info = (kernel_ulong_t)&net_intf4_blacklist },
-	{ USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_HC28_MDM) }, 
+	{ USB_DEVICE_INTERFACE_CLASS(CINTERION_VENDOR_ID, CINTERION_PRODUCT_PH8_2RMNET, 0xff),
+		.driver_info = (kernel_ulong_t)&cinterion_rmnet2_blacklist },
+	{ USB_DEVICE_INTERFACE_CLASS(CINTERION_VENDOR_ID, CINTERION_PRODUCT_PH8_AUDIO, 0xff),
+		.driver_info = (kernel_ulong_t)&net_intf4_blacklist },
+	{ USB_DEVICE_INTERFACE_CLASS(CINTERION_VENDOR_ID, CINTERION_PRODUCT_AHXX_2RMNET, 0xff) },
+	{ USB_DEVICE_INTERFACE_CLASS(CINTERION_VENDOR_ID, CINTERION_PRODUCT_AHXX_AUDIO, 0xff) },
+	{ USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_HC28_MDM) },
 	{ USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_HC28_MDMNET) },
 	{ USB_DEVICE(SIEMENS_VENDOR_ID, CINTERION_PRODUCT_HC25_MDM) },
 	{ USB_DEVICE(SIEMENS_VENDOR_ID, CINTERION_PRODUCT_HC25_MDMNET) },
@@ -1777,6 +2015,7 @@ static const struct usb_device_id option
 	{ USB_DEVICE(CELLIENT_VENDOR_ID, CELLIENT_PRODUCT_MEN200) },
 	{ USB_DEVICE(PETATEL_VENDOR_ID, PETATEL_PRODUCT_NP10T_600A) },
 	{ USB_DEVICE(PETATEL_VENDOR_ID, PETATEL_PRODUCT_NP10T_600E) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(TPLINK_VENDOR_ID, TPLINK_PRODUCT_LTE, 0xff, 0x00, 0x00) },	/* TP-Link LTE Module */
 	{ USB_DEVICE(TPLINK_VENDOR_ID, TPLINK_PRODUCT_MA180),
 	  .driver_info = (kernel_ulong_t)&net_intf4_blacklist },
 	{ USB_DEVICE(TPLINK_VENDOR_ID, 0x9000),					/* TP-Link MA260 */
@@ -1788,11 +2027,22 @@ static const struct usb_device_id option
 	{ USB_DEVICE_AND_INTERFACE_INFO(0x2001, 0x7d02, 0xff, 0x00, 0x00) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(0x2001, 0x7d03, 0xff, 0x02, 0x01) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(0x2001, 0x7d03, 0xff, 0x00, 0x00) },
+	{ USB_DEVICE_INTERFACE_CLASS(0x2001, 0x7d04, 0xff) },			/* D-Link DWM-158 */
+	{ USB_DEVICE_INTERFACE_CLASS(0x2001, 0x7d0e, 0xff) },			/* D-Link DWM-157 C1 */
+	{ USB_DEVICE_INTERFACE_CLASS(0x2001, 0x7e19, 0xff),			/* D-Link DWM-221 B1 */
+	  .driver_info = (kernel_ulong_t)&net_intf4_blacklist },
+	{ USB_DEVICE_INTERFACE_CLASS(0x2001, 0x7e35, 0xff),			/* D-Link DWM-222 */
+	  .driver_info = (kernel_ulong_t)&net_intf4_blacklist },
 	{ USB_DEVICE_AND_INTERFACE_INFO(0x07d1, 0x3e01, 0xff, 0xff, 0xff) }, /* D-Link DWM-152/C1 */
 	{ USB_DEVICE_AND_INTERFACE_INFO(0x07d1, 0x3e02, 0xff, 0xff, 0xff) }, /* D-Link DWM-156/C1 */
+	{ USB_DEVICE_AND_INTERFACE_INFO(0x07d1, 0x7e11, 0xff, 0xff, 0xff) }, /* D-Link DWM-156/A3 */
 	{ USB_DEVICE_INTERFACE_CLASS(0x2020, 0x4000, 0xff) },                /* OLICARD300 - MT6225 */
 	{ USB_DEVICE(INOVIA_VENDOR_ID, INOVIA_SEW858) },
 	{ USB_DEVICE(VIATELECOM_VENDOR_ID, VIATELECOM_PRODUCT_CDS7) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(WETELECOM_VENDOR_ID, WETELECOM_PRODUCT_WMD200, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(WETELECOM_VENDOR_ID, WETELECOM_PRODUCT_6802, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(WETELECOM_VENDOR_ID, WETELECOM_PRODUCT_WMD300, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(0x03f0, 0x421d, 0xff, 0xff, 0xff) }, /* HP lt2523 (Novatel E371) */
 	{ } /* Terminating entry */
 };
 MODULE_DEVICE_TABLE(usb, option_ids);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/serial/oti6858.c linux-libre-4.4.107-gnu/drivers/usb/serial/oti6858.c
--- linux-libre-4.4-gnu/drivers/usb/serial/oti6858.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/serial/oti6858.c	2017-12-20 04:05:01.000000000 -0500
@@ -134,6 +134,7 @@ static int oti6858_chars_in_buffer(struc
 static int oti6858_tiocmget(struct tty_struct *tty);
 static int oti6858_tiocmset(struct tty_struct *tty,
 				unsigned int set, unsigned int clear);
+static int oti6858_attach(struct usb_serial *serial);
 static int oti6858_port_probe(struct usb_serial_port *port);
 static int oti6858_port_remove(struct usb_serial_port *port);
 
@@ -158,6 +159,7 @@ static struct usb_serial_driver oti6858_
 	.write_bulk_callback =	oti6858_write_bulk_callback,
 	.write_room =		oti6858_write_room,
 	.chars_in_buffer =	oti6858_chars_in_buffer,
+	.attach =		oti6858_attach,
 	.port_probe =		oti6858_port_probe,
 	.port_remove =		oti6858_port_remove,
 };
@@ -324,6 +326,20 @@ static void send_data(struct work_struct
 	usb_serial_port_softint(port);
 }
 
+static int oti6858_attach(struct usb_serial *serial)
+{
+	unsigned char num_ports = serial->num_ports;
+
+	if (serial->num_bulk_in < num_ports ||
+			serial->num_bulk_out < num_ports ||
+			serial->num_interrupt_in < num_ports) {
+		dev_err(&serial->interface->dev, "missing endpoints\n");
+		return -ENODEV;
+	}
+
+	return 0;
+}
+
 static int oti6858_port_probe(struct usb_serial_port *port)
 {
 	struct oti6858_private *priv;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/serial/pl2303.c linux-libre-4.4.107-gnu/drivers/usb/serial/pl2303.c
--- linux-libre-4.4-gnu/drivers/usb/serial/pl2303.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/serial/pl2303.c	2017-12-20 04:05:01.000000000 -0500
@@ -49,6 +49,8 @@ static const struct usb_device_id id_tab
 	{ USB_DEVICE(IODATA_VENDOR_ID, IODATA_PRODUCT_ID) },
 	{ USB_DEVICE(IODATA_VENDOR_ID, IODATA_PRODUCT_ID_RSAQ5) },
 	{ USB_DEVICE(ATEN_VENDOR_ID, ATEN_PRODUCT_ID) },
+	{ USB_DEVICE(ATEN_VENDOR_ID, ATEN_PRODUCT_UC485) },
+	{ USB_DEVICE(ATEN_VENDOR_ID, ATEN_PRODUCT_ID2) },
 	{ USB_DEVICE(ATEN_VENDOR_ID2, ATEN_PRODUCT_ID) },
 	{ USB_DEVICE(ELCOM_VENDOR_ID, ELCOM_PRODUCT_ID) },
 	{ USB_DEVICE(ELCOM_VENDOR_ID, ELCOM_PRODUCT_ID_UCSGT) },
@@ -220,9 +222,17 @@ static int pl2303_probe(struct usb_seria
 static int pl2303_startup(struct usb_serial *serial)
 {
 	struct pl2303_serial_private *spriv;
+	unsigned char num_ports = serial->num_ports;
 	enum pl2303_type type = TYPE_01;
 	unsigned char *buf;
 
+	if (serial->num_bulk_in < num_ports ||
+			serial->num_bulk_out < num_ports ||
+			serial->num_interrupt_in < num_ports) {
+		dev_err(&serial->interface->dev, "missing endpoints\n");
+		return -ENODEV;
+	}
+
 	spriv = kzalloc(sizeof(*spriv), GFP_KERNEL);
 	if (!spriv)
 		return -ENOMEM;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/serial/pl2303.h linux-libre-4.4.107-gnu/drivers/usb/serial/pl2303.h
--- linux-libre-4.4-gnu/drivers/usb/serial/pl2303.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/serial/pl2303.h	2017-12-20 04:05:01.000000000 -0500
@@ -27,6 +27,8 @@
 #define ATEN_VENDOR_ID		0x0557
 #define ATEN_VENDOR_ID2		0x0547
 #define ATEN_PRODUCT_ID		0x2008
+#define ATEN_PRODUCT_UC485	0x2021
+#define ATEN_PRODUCT_ID2	0x2118
 
 #define IODATA_VENDOR_ID	0x04bb
 #define IODATA_PRODUCT_ID	0x0a03
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/serial/qcserial.c linux-libre-4.4.107-gnu/drivers/usb/serial/qcserial.c
--- linux-libre-4.4-gnu/drivers/usb/serial/qcserial.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/serial/qcserial.c	2017-12-20 04:05:01.000000000 -0500
@@ -124,6 +124,7 @@ static const struct usb_device_id id_tab
 	{USB_DEVICE(0x1410, 0xa021)},	/* Novatel Gobi 3000 Composite */
 	{USB_DEVICE(0x413c, 0x8193)},	/* Dell Gobi 3000 QDL */
 	{USB_DEVICE(0x413c, 0x8194)},	/* Dell Gobi 3000 Composite */
+	{USB_DEVICE(0x413c, 0x81a6)},	/* Dell DW5570 QDL (MC8805) */
 	{USB_DEVICE(0x1199, 0x68a4)},	/* Sierra Wireless QDL */
 	{USB_DEVICE(0x1199, 0x68a5)},	/* Sierra Wireless Modem */
 	{USB_DEVICE(0x1199, 0x68a8)},	/* Sierra Wireless QDL */
@@ -147,6 +148,7 @@ static const struct usb_device_id id_tab
 	{DEVICE_SWI(0x1199, 0x68a2)},	/* Sierra Wireless MC7710 */
 	{DEVICE_SWI(0x1199, 0x68c0)},	/* Sierra Wireless MC7304/MC7354 */
 	{DEVICE_SWI(0x1199, 0x901c)},	/* Sierra Wireless EM7700 */
+	{DEVICE_SWI(0x1199, 0x901e)},	/* Sierra Wireless EM7355 QDL */
 	{DEVICE_SWI(0x1199, 0x901f)},	/* Sierra Wireless EM7355 */
 	{DEVICE_SWI(0x1199, 0x9040)},	/* Sierra Wireless Modem */
 	{DEVICE_SWI(0x1199, 0x9041)},	/* Sierra Wireless MC7305/MC7355 */
@@ -157,14 +159,26 @@ static const struct usb_device_id id_tab
 	{DEVICE_SWI(0x1199, 0x9056)},	/* Sierra Wireless Modem */
 	{DEVICE_SWI(0x1199, 0x9060)},	/* Sierra Wireless Modem */
 	{DEVICE_SWI(0x1199, 0x9061)},	/* Sierra Wireless Modem */
-	{DEVICE_SWI(0x1199, 0x9070)},	/* Sierra Wireless MC74xx/EM74xx */
-	{DEVICE_SWI(0x1199, 0x9071)},	/* Sierra Wireless MC74xx/EM74xx */
+	{DEVICE_SWI(0x1199, 0x9063)},	/* Sierra Wireless EM7305 */
+	{DEVICE_SWI(0x1199, 0x9070)},	/* Sierra Wireless MC74xx */
+	{DEVICE_SWI(0x1199, 0x9071)},	/* Sierra Wireless MC74xx */
+	{DEVICE_SWI(0x1199, 0x9078)},	/* Sierra Wireless EM74xx */
+	{DEVICE_SWI(0x1199, 0x9079)},	/* Sierra Wireless EM74xx */
+	{DEVICE_SWI(0x1199, 0x907a)},	/* Sierra Wireless EM74xx QDL */
+	{DEVICE_SWI(0x1199, 0x907b)},	/* Sierra Wireless EM74xx */
 	{DEVICE_SWI(0x413c, 0x81a2)},	/* Dell Wireless 5806 Gobi(TM) 4G LTE Mobile Broadband Card */
 	{DEVICE_SWI(0x413c, 0x81a3)},	/* Dell Wireless 5570 HSPA+ (42Mbps) Mobile Broadband Card */
 	{DEVICE_SWI(0x413c, 0x81a4)},	/* Dell Wireless 5570e HSPA+ (42Mbps) Mobile Broadband Card */
 	{DEVICE_SWI(0x413c, 0x81a8)},	/* Dell Wireless 5808 Gobi(TM) 4G LTE Mobile Broadband Card */
 	{DEVICE_SWI(0x413c, 0x81a9)},	/* Dell Wireless 5808e Gobi(TM) 4G LTE Mobile Broadband Card */
 	{DEVICE_SWI(0x413c, 0x81b1)},	/* Dell Wireless 5809e Gobi(TM) 4G LTE Mobile Broadband Card */
+	{DEVICE_SWI(0x413c, 0x81b3)},	/* Dell Wireless 5809e Gobi(TM) 4G LTE Mobile Broadband Card (rev3) */
+	{DEVICE_SWI(0x413c, 0x81b5)},	/* Dell Wireless 5811e QDL */
+	{DEVICE_SWI(0x413c, 0x81b6)},	/* Dell Wireless 5811e QDL */
+	{DEVICE_SWI(0x413c, 0x81cf)},   /* Dell Wireless 5819 */
+	{DEVICE_SWI(0x413c, 0x81d0)},   /* Dell Wireless 5819 */
+	{DEVICE_SWI(0x413c, 0x81d1)},   /* Dell Wireless 5818 */
+	{DEVICE_SWI(0x413c, 0x81d2)},   /* Dell Wireless 5818 */
 
 	/* Huawei devices */
 	{DEVICE_HWI(0x03f0, 0x581d)},	/* HP lt4112 LTE/HSPA+ Gobi 4G Modem (Huawei me906e) */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/serial/quatech2.c linux-libre-4.4.107-gnu/drivers/usb/serial/quatech2.c
--- linux-libre-4.4-gnu/drivers/usb/serial/quatech2.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/serial/quatech2.c	2017-12-20 04:05:01.000000000 -0500
@@ -141,6 +141,7 @@ static void qt2_release(struct usb_seria
 
 	serial_priv = usb_get_serial_data(serial);
 
+	usb_kill_urb(serial_priv->read_urb);
 	usb_free_urb(serial_priv->read_urb);
 	kfree(serial_priv->read_buffer);
 	kfree(serial_priv);
@@ -187,22 +188,22 @@ static inline int qt2_setdevice(struct u
 }
 
 
-static inline int qt2_getdevice(struct usb_device *dev, u8 *data)
-{
-	return usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
-			       QT_SET_GET_DEVICE, 0xc0, 0, 0,
-			       data, 3, QT2_USB_TIMEOUT);
-}
-
 static inline int qt2_getregister(struct usb_device *dev,
 				  u8 uart,
 				  u8 reg,
 				  u8 *data)
 {
-	return usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
-			       QT_SET_GET_REGISTER, 0xc0, reg,
-			       uart, data, sizeof(*data), QT2_USB_TIMEOUT);
+	int ret;
 
+	ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
+			      QT_SET_GET_REGISTER, 0xc0, reg,
+			      uart, data, sizeof(*data), QT2_USB_TIMEOUT);
+	if (ret < sizeof(*data)) {
+		if (ret >= 0)
+			ret = -EIO;
+	}
+
+	return ret;
 }
 
 static inline int qt2_setregister(struct usb_device *dev,
@@ -371,9 +372,11 @@ static int qt2_open(struct tty_struct *t
 				 0xc0, 0,
 				 device_port, data, 2, QT2_USB_TIMEOUT);
 
-	if (status < 0) {
+	if (status < 2) {
 		dev_err(&port->dev, "%s - open port failed %i\n", __func__,
 			status);
+		if (status >= 0)
+			status = -EIO;
 		kfree(data);
 		return status;
 	}
@@ -407,16 +410,12 @@ static void qt2_close(struct usb_serial_
 {
 	struct usb_serial *serial;
 	struct qt2_port_private *port_priv;
-	unsigned long flags;
 	int i;
 
 	serial = port->serial;
 	port_priv = usb_get_serial_port_data(port);
 
-	spin_lock_irqsave(&port_priv->urb_lock, flags);
 	usb_kill_urb(port_priv->write_urb);
-	port_priv->urb_in_use = false;
-	spin_unlock_irqrestore(&port_priv->urb_lock, flags);
 
 	/* flush the port transmit buffer */
 	i = usb_control_msg(serial->dev,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/serial/safe_serial.c linux-libre-4.4.107-gnu/drivers/usb/serial/safe_serial.c
--- linux-libre-4.4-gnu/drivers/usb/serial/safe_serial.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/serial/safe_serial.c	2017-12-20 04:05:01.000000000 -0500
@@ -205,6 +205,11 @@ static void safe_process_read_urb(struct
 	if (!safe)
 		goto out;
 
+	if (length < 2) {
+		dev_err(&port->dev, "malformed packet\n");
+		return;
+	}
+
 	fcs = fcs_compute10(data, length, CRC10_INITFCS);
 	if (fcs) {
 		dev_err(&port->dev, "%s - bad CRC %x\n", __func__, fcs);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/serial/spcp8x5.c linux-libre-4.4.107-gnu/drivers/usb/serial/spcp8x5.c
--- linux-libre-4.4-gnu/drivers/usb/serial/spcp8x5.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/serial/spcp8x5.c	2017-12-20 04:05:01.000000000 -0500
@@ -154,6 +154,19 @@ static int spcp8x5_probe(struct usb_seri
 	return 0;
 }
 
+static int spcp8x5_attach(struct usb_serial *serial)
+{
+	unsigned char num_ports = serial->num_ports;
+
+	if (serial->num_bulk_in < num_ports ||
+			serial->num_bulk_out < num_ports) {
+		dev_err(&serial->interface->dev, "missing endpoints\n");
+		return -ENODEV;
+	}
+
+	return 0;
+}
+
 static int spcp8x5_port_probe(struct usb_serial_port *port)
 {
 	const struct usb_device_id *id = usb_get_serial_data(port->serial);
@@ -219,11 +232,17 @@ static int spcp8x5_get_msr(struct usb_se
 	ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
 			      GET_UART_STATUS, GET_UART_STATUS_TYPE,
 			      0, GET_UART_STATUS_MSR, buf, 1, 100);
-	if (ret < 0)
+	if (ret < 1) {
 		dev_err(&port->dev, "failed to get modem status: %d\n", ret);
+		if (ret >= 0)
+			ret = -EIO;
+		goto out;
+	}
 
 	dev_dbg(&port->dev, "0xc0:0x22:0:6  %d - 0x02%x\n", ret, *buf);
 	*status = *buf;
+	ret = 0;
+out:
 	kfree(buf);
 
 	return ret;
@@ -477,6 +496,7 @@ static struct usb_serial_driver spcp8x5_
 	.tiocmget		= spcp8x5_tiocmget,
 	.tiocmset		= spcp8x5_tiocmset,
 	.probe			= spcp8x5_probe,
+	.attach			= spcp8x5_attach,
 	.port_probe		= spcp8x5_port_probe,
 	.port_remove		= spcp8x5_port_remove,
 };
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/serial/ssu100.c linux-libre-4.4.107-gnu/drivers/usb/serial/ssu100.c
--- linux-libre-4.4-gnu/drivers/usb/serial/ssu100.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/serial/ssu100.c	2017-12-20 04:05:01.000000000 -0500
@@ -80,9 +80,17 @@ static inline int ssu100_setdevice(struc
 
 static inline int ssu100_getdevice(struct usb_device *dev, u8 *data)
 {
-	return usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
-			       QT_SET_GET_DEVICE, 0xc0, 0, 0,
-			       data, 3, 300);
+	int ret;
+
+	ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
+			      QT_SET_GET_DEVICE, 0xc0, 0, 0,
+			      data, 3, 300);
+	if (ret < 3) {
+		if (ret >= 0)
+			ret = -EIO;
+	}
+
+	return ret;
 }
 
 static inline int ssu100_getregister(struct usb_device *dev,
@@ -90,10 +98,17 @@ static inline int ssu100_getregister(str
 				     unsigned short reg,
 				     u8 *data)
 {
-	return usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
-			       QT_SET_GET_REGISTER, 0xc0, reg,
-			       uart, data, sizeof(*data), 300);
+	int ret;
 
+	ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
+			      QT_SET_GET_REGISTER, 0xc0, reg,
+			      uart, data, sizeof(*data), 300);
+	if (ret < sizeof(*data)) {
+		if (ret >= 0)
+			ret = -EIO;
+	}
+
+	return ret;
 }
 
 
@@ -289,8 +304,10 @@ static int ssu100_open(struct tty_struct
 				 QT_OPEN_CLOSE_CHANNEL,
 				 QT_TRANSFER_IN, 0x01,
 				 0, data, 2, 300);
-	if (result < 0) {
+	if (result < 2) {
 		dev_dbg(&port->dev, "%s - open failed %i\n", __func__, result);
+		if (result >= 0)
+			result = -EIO;
 		kfree(data);
 		return result;
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/serial/ti_usb_3410_5052.c linux-libre-4.4.107-gnu/drivers/usb/serial/ti_usb_3410_5052.c
--- linux-libre-4.4-gnu/drivers/usb/serial/ti_usb_3410_5052.c	2016-01-10 21:15:51.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/serial/ti_usb_3410_5052.c	2017-12-20 11:45:18.000000000 -0500
@@ -333,6 +333,13 @@ static int ti_startup(struct usb_serial
 		goto free_tdev;
 	}
 
+	if (serial->num_bulk_in < serial->num_ports ||
+			serial->num_bulk_out < serial->num_ports) {
+		dev_err(&serial->interface->dev, "missing endpoints\n");
+		status = -ENODEV;
+		goto free_tdev;
+	}
+
 	return 0;
 
 free_tdev:
@@ -1339,13 +1346,10 @@ static int ti_command_out_sync(struct ti
 		(USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT),
 		value, moduleid, data, size, 1000);
 
-	if (status == size)
-		status = 0;
-
-	if (status > 0)
-		status = -ECOMM;
+	if (status < 0)
+		return status;
 
-	return status;
+	return 0;
 }
 
 
@@ -1361,8 +1365,7 @@ static int ti_command_in_sync(struct ti_
 
 	if (status == size)
 		status = 0;
-
-	if (status > 0)
+	else if (status >= 0)
 		status = -ECOMM;
 
 	return status;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/serial/usb-serial.c linux-libre-4.4.107-gnu/drivers/usb/serial/usb-serial.c
--- linux-libre-4.4-gnu/drivers/usb/serial/usb-serial.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/serial/usb-serial.c	2017-12-20 04:05:01.000000000 -0500
@@ -1077,7 +1077,8 @@ static int usb_serial_probe(struct usb_i
 
 	serial->disconnected = 0;
 
-	usb_serial_console_init(serial->port[0]->minor);
+	if (num_ports > 0)
+		usb_serial_console_init(serial->port[0]->minor);
 exit:
 	module_put(type->driver.owner);
 	return 0;
@@ -1432,7 +1433,7 @@ int usb_serial_register_drivers(struct u
 
 	rc = usb_register(udriver);
 	if (rc)
-		return rc;
+		goto failed_usb_register;
 
 	for (sd = serial_drivers; *sd; ++sd) {
 		(*sd)->usb_driver = udriver;
@@ -1450,6 +1451,8 @@ int usb_serial_register_drivers(struct u
 	while (sd-- > serial_drivers)
 		usb_serial_deregister(*sd);
 	usb_deregister(udriver);
+failed_usb_register:
+	kfree(udriver);
 	return rc;
 }
 EXPORT_SYMBOL_GPL(usb_serial_register_drivers);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/serial/usb-serial-simple.c linux-libre-4.4.107-gnu/drivers/usb/serial/usb-serial-simple.c
--- linux-libre-4.4-gnu/drivers/usb/serial/usb-serial-simple.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/serial/usb-serial-simple.c	2017-12-20 04:05:01.000000000 -0500
@@ -54,7 +54,8 @@ DEVICE(funsoft, FUNSOFT_IDS);
 /* Infineon Flashloader driver */
 #define FLASHLOADER_IDS()		\
 	{ USB_DEVICE_INTERFACE_CLASS(0x058b, 0x0041, USB_CLASS_CDC_DATA) }, \
-	{ USB_DEVICE(0x8087, 0x0716) }
+	{ USB_DEVICE(0x8087, 0x0716) }, \
+	{ USB_DEVICE(0x8087, 0x0801) }
 DEVICE(flashloader, FLASHLOADER_IDS);
 
 /* Google Serial USB SubClass */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/serial/visor.c linux-libre-4.4.107-gnu/drivers/usb/serial/visor.c
--- linux-libre-4.4-gnu/drivers/usb/serial/visor.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/serial/visor.c	2017-12-20 04:05:01.000000000 -0500
@@ -544,6 +544,11 @@ static int treo_attach(struct usb_serial
 		(serial->num_interrupt_in == 0))
 		return 0;
 
+	if (serial->num_bulk_in < 2 || serial->num_interrupt_in < 2) {
+		dev_err(&serial->interface->dev, "missing endpoints\n");
+		return -ENODEV;
+	}
+
 	/*
 	* It appears that Treos and Kyoceras want to use the
 	* 1st bulk in endpoint to communicate with the 2nd bulk out endpoint,
@@ -597,8 +602,10 @@ static int clie_5_attach(struct usb_seri
 	 */
 
 	/* some sanity check */
-	if (serial->num_ports < 2)
-		return -1;
+	if (serial->num_bulk_out < 2) {
+		dev_err(&serial->interface->dev, "missing bulk out endpoints\n");
+		return -ENODEV;
+	}
 
 	/* port 0 now uses the modified endpoint Address */
 	port = serial->port[0];
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/storage/ene_ub6250.c linux-libre-4.4.107-gnu/drivers/usb/storage/ene_ub6250.c
--- linux-libre-4.4-gnu/drivers/usb/storage/ene_ub6250.c	2016-01-10 21:14:50.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/storage/ene_ub6250.c	2017-12-20 11:44:28.000000000 -0500
@@ -441,6 +441,10 @@ struct ms_lib_ctrl {
 #define SD_BLOCK_LEN  9
 
 struct ene_ub6250_info {
+
+	/* I/O bounce buffer */
+	u8		*bbuf;
+
 	/* for 6250 code */
 	struct SD_STATUS	SD_Status;
 	struct MS_STATUS	MS_Status;
@@ -488,8 +492,11 @@ static int ene_load_bincode(struct us_da
 
 static void ene_ub6250_info_destructor(void *extra)
 {
+	struct ene_ub6250_info *info = (struct ene_ub6250_info *) extra;
+
 	if (!extra)
 		return;
+	kfree(info->bbuf);
 }
 
 static int ene_send_scsi_cmd(struct us_data *us, u8 fDir, void *buf, int use_sg)
@@ -853,8 +860,9 @@ static int ms_read_readpage(struct us_da
 		u8 PageNum, u32 *PageBuf, struct ms_lib_type_extdat *ExtraDat)
 {
 	struct bulk_cb_wrap *bcb = (struct bulk_cb_wrap *) us->iobuf;
+	struct ene_ub6250_info *info = (struct ene_ub6250_info *) us->extra;
+	u8 *bbuf = info->bbuf;
 	int result;
-	u8 ExtBuf[4];
 	u32 bn = PhyBlockAddr * 0x20 + PageNum;
 
 	/* printk(KERN_INFO "MS --- MS_ReaderReadPage,
@@ -897,7 +905,7 @@ static int ms_read_readpage(struct us_da
 	bcb->CDB[2]     = (unsigned char)(PhyBlockAddr>>16);
 	bcb->CDB[6]     = 0x01;
 
-	result = ene_send_scsi_cmd(us, FDIR_READ, &ExtBuf, 0);
+	result = ene_send_scsi_cmd(us, FDIR_READ, bbuf, 0);
 	if (result != USB_STOR_XFER_GOOD)
 		return USB_STOR_TRANSPORT_ERROR;
 
@@ -906,9 +914,9 @@ static int ms_read_readpage(struct us_da
 	ExtraDat->status0  = 0x10;  /* Not yet,fireware support */
 
 	ExtraDat->status1  = 0x00;  /* Not yet,fireware support */
-	ExtraDat->ovrflg   = ExtBuf[0];
-	ExtraDat->mngflg   = ExtBuf[1];
-	ExtraDat->logadr   = memstick_logaddr(ExtBuf[2], ExtBuf[3]);
+	ExtraDat->ovrflg   = bbuf[0];
+	ExtraDat->mngflg   = bbuf[1];
+	ExtraDat->logadr   = memstick_logaddr(bbuf[2], bbuf[3]);
 
 	return USB_STOR_TRANSPORT_GOOD;
 }
@@ -1334,8 +1342,9 @@ static int ms_lib_read_extra(struct us_d
 				u8 PageNum, struct ms_lib_type_extdat *ExtraDat)
 {
 	struct bulk_cb_wrap *bcb = (struct bulk_cb_wrap *) us->iobuf;
+	struct ene_ub6250_info *info = (struct ene_ub6250_info *) us->extra;
+	u8 *bbuf = info->bbuf;
 	int result;
-	u8 ExtBuf[4];
 
 	/* printk("MS_LibReadExtra --- PhyBlock = %x, PageNum = %x\n", PhyBlock, PageNum); */
 	memset(bcb, 0, sizeof(struct bulk_cb_wrap));
@@ -1350,7 +1359,7 @@ static int ms_lib_read_extra(struct us_d
 	bcb->CDB[2]     = (unsigned char)(PhyBlock>>16);
 	bcb->CDB[6]     = 0x01;
 
-	result = ene_send_scsi_cmd(us, FDIR_READ, &ExtBuf, 0);
+	result = ene_send_scsi_cmd(us, FDIR_READ, bbuf, 0);
 	if (result != USB_STOR_XFER_GOOD)
 		return USB_STOR_TRANSPORT_ERROR;
 
@@ -1358,9 +1367,9 @@ static int ms_lib_read_extra(struct us_d
 	ExtraDat->intr     = 0x80;  /* Not yet, waiting for fireware support */
 	ExtraDat->status0  = 0x10;  /* Not yet, waiting for fireware support */
 	ExtraDat->status1  = 0x00;  /* Not yet, waiting for fireware support */
-	ExtraDat->ovrflg   = ExtBuf[0];
-	ExtraDat->mngflg   = ExtBuf[1];
-	ExtraDat->logadr   = memstick_logaddr(ExtBuf[2], ExtBuf[3]);
+	ExtraDat->ovrflg   = bbuf[0];
+	ExtraDat->mngflg   = bbuf[1];
+	ExtraDat->logadr   = memstick_logaddr(bbuf[2], bbuf[3]);
 
 	return USB_STOR_TRANSPORT_GOOD;
 }
@@ -1564,9 +1573,9 @@ static int ms_lib_scan_logicalblocknumbe
 	u16 PhyBlock, newblk, i;
 	u16 LogStart, LogEnde;
 	struct ms_lib_type_extdat extdat;
-	u8 buf[0x200];
 	u32 count = 0, index = 0;
 	struct ene_ub6250_info *info = (struct ene_ub6250_info *) us->extra;
+	u8 *bbuf = info->bbuf;
 
 	for (PhyBlock = 0; PhyBlock < info->MS_Lib.NumberOfPhyBlock;) {
 		ms_lib_phy_to_log_range(PhyBlock, &LogStart, &LogEnde);
@@ -1580,14 +1589,16 @@ static int ms_lib_scan_logicalblocknumbe
 			}
 
 			if (count == PhyBlock) {
-				ms_lib_read_extrablock(us, PhyBlock, 0, 0x80, &buf);
+				ms_lib_read_extrablock(us, PhyBlock, 0, 0x80,
+						bbuf);
 				count += 0x80;
 			}
 			index = (PhyBlock % 0x80) * 4;
 
-			extdat.ovrflg = buf[index];
-			extdat.mngflg = buf[index+1];
-			extdat.logadr = memstick_logaddr(buf[index+2], buf[index+3]);
+			extdat.ovrflg = bbuf[index];
+			extdat.mngflg = bbuf[index+1];
+			extdat.logadr = memstick_logaddr(bbuf[index+2],
+					bbuf[index+3]);
 
 			if ((extdat.ovrflg & MS_REG_OVR_BKST) != MS_REG_OVR_BKST_OK) {
 				ms_lib_setacquired_errorblock(us, PhyBlock);
@@ -2070,9 +2081,9 @@ static int ene_ms_init(struct us_data *u
 {
 	struct bulk_cb_wrap *bcb = (struct bulk_cb_wrap *) us->iobuf;
 	int result;
-	u8 buf[0x200];
 	u16 MSP_BlockSize, MSP_UserAreaBlocks;
 	struct ene_ub6250_info *info = (struct ene_ub6250_info *) us->extra;
+	u8 *bbuf = info->bbuf;
 
 	printk(KERN_INFO "transport --- ENE_MSInit\n");
 
@@ -2091,13 +2102,13 @@ static int ene_ms_init(struct us_data *u
 	bcb->CDB[0]     = 0xF1;
 	bcb->CDB[1]     = 0x01;
 
-	result = ene_send_scsi_cmd(us, FDIR_READ, &buf, 0);
+	result = ene_send_scsi_cmd(us, FDIR_READ, bbuf, 0);
 	if (result != USB_STOR_XFER_GOOD) {
 		printk(KERN_ERR "Execution MS Init Code Fail !!\n");
 		return USB_STOR_TRANSPORT_ERROR;
 	}
 	/* the same part to test ENE */
-	info->MS_Status = *(struct MS_STATUS *)&buf[0];
+	info->MS_Status = *(struct MS_STATUS *) bbuf;
 
 	if (info->MS_Status.Insert && info->MS_Status.Ready) {
 		printk(KERN_INFO "Insert     = %x\n", info->MS_Status.Insert);
@@ -2106,15 +2117,15 @@ static int ene_ms_init(struct us_data *u
 		printk(KERN_INFO "IsMSPHG    = %x\n", info->MS_Status.IsMSPHG);
 		printk(KERN_INFO "WtP= %x\n", info->MS_Status.WtP);
 		if (info->MS_Status.IsMSPro) {
-			MSP_BlockSize      = (buf[6] << 8) | buf[7];
-			MSP_UserAreaBlocks = (buf[10] << 8) | buf[11];
+			MSP_BlockSize      = (bbuf[6] << 8) | bbuf[7];
+			MSP_UserAreaBlocks = (bbuf[10] << 8) | bbuf[11];
 			info->MSP_TotalBlock = MSP_BlockSize * MSP_UserAreaBlocks;
 		} else {
 			ms_card_init(us); /* Card is MS (to ms.c)*/
 		}
 		usb_stor_dbg(us, "MS Init Code OK !!\n");
 	} else {
-		usb_stor_dbg(us, "MS Card Not Ready --- %x\n", buf[0]);
+		usb_stor_dbg(us, "MS Card Not Ready --- %x\n", bbuf[0]);
 		return USB_STOR_TRANSPORT_ERROR;
 	}
 
@@ -2124,9 +2135,9 @@ static int ene_ms_init(struct us_data *u
 static int ene_sd_init(struct us_data *us)
 {
 	int result;
-	u8  buf[0x200];
 	struct bulk_cb_wrap *bcb = (struct bulk_cb_wrap *) us->iobuf;
 	struct ene_ub6250_info *info = (struct ene_ub6250_info *) us->extra;
+	u8 *bbuf = info->bbuf;
 
 	usb_stor_dbg(us, "transport --- ENE_SDInit\n");
 	/* SD Init Part-1 */
@@ -2160,17 +2171,17 @@ static int ene_sd_init(struct us_data *u
 	bcb->Flags              = US_BULK_FLAG_IN;
 	bcb->CDB[0]             = 0xF1;
 
-	result = ene_send_scsi_cmd(us, FDIR_READ, &buf, 0);
+	result = ene_send_scsi_cmd(us, FDIR_READ, bbuf, 0);
 	if (result != USB_STOR_XFER_GOOD) {
 		usb_stor_dbg(us, "Execution SD Init Code Fail !!\n");
 		return USB_STOR_TRANSPORT_ERROR;
 	}
 
-	info->SD_Status =  *(struct SD_STATUS *)&buf[0];
+	info->SD_Status =  *(struct SD_STATUS *) bbuf;
 	if (info->SD_Status.Insert && info->SD_Status.Ready) {
 		struct SD_STATUS *s = &info->SD_Status;
 
-		ene_get_card_status(us, (unsigned char *)&buf);
+		ene_get_card_status(us, bbuf);
 		usb_stor_dbg(us, "Insert     = %x\n", s->Insert);
 		usb_stor_dbg(us, "Ready      = %x\n", s->Ready);
 		usb_stor_dbg(us, "IsMMC      = %x\n", s->IsMMC);
@@ -2178,7 +2189,7 @@ static int ene_sd_init(struct us_data *u
 		usb_stor_dbg(us, "HiSpeed    = %x\n", s->HiSpeed);
 		usb_stor_dbg(us, "WtP        = %x\n", s->WtP);
 	} else {
-		usb_stor_dbg(us, "SD Card Not Ready --- %x\n", buf[0]);
+		usb_stor_dbg(us, "SD Card Not Ready --- %x\n", bbuf[0]);
 		return USB_STOR_TRANSPORT_ERROR;
 	}
 	return USB_STOR_TRANSPORT_GOOD;
@@ -2188,13 +2199,15 @@ static int ene_sd_init(struct us_data *u
 static int ene_init(struct us_data *us)
 {
 	int result;
-	u8  misc_reg03 = 0;
+	u8  misc_reg03;
 	struct ene_ub6250_info *info = (struct ene_ub6250_info *)(us->extra);
+	u8 *bbuf = info->bbuf;
 
-	result = ene_get_card_type(us, REG_CARD_STATUS, &misc_reg03);
+	result = ene_get_card_type(us, REG_CARD_STATUS, bbuf);
 	if (result != USB_STOR_XFER_GOOD)
 		return USB_STOR_TRANSPORT_ERROR;
 
+	misc_reg03 = bbuf[0];
 	if (misc_reg03 & 0x01) {
 		if (!info->SD_Status.Ready) {
 			result = ene_sd_init(us);
@@ -2311,8 +2324,9 @@ static int ene_ub6250_probe(struct usb_i
 			 const struct usb_device_id *id)
 {
 	int result;
-	u8  misc_reg03 = 0;
+	u8  misc_reg03;
 	struct us_data *us;
+	struct ene_ub6250_info *info;
 
 	result = usb_stor_probe1(&us, intf, id,
 		   (id - ene_ub6250_usb_ids) + ene_ub6250_unusual_dev_list,
@@ -2321,11 +2335,16 @@ static int ene_ub6250_probe(struct usb_i
 		return result;
 
 	/* FIXME: where should the code alloc extra buf ? */
-	if (!us->extra) {
-		us->extra = kzalloc(sizeof(struct ene_ub6250_info), GFP_KERNEL);
-		if (!us->extra)
-			return -ENOMEM;
-		us->extra_destructor = ene_ub6250_info_destructor;
+	us->extra = kzalloc(sizeof(struct ene_ub6250_info), GFP_KERNEL);
+	if (!us->extra)
+		return -ENOMEM;
+	us->extra_destructor = ene_ub6250_info_destructor;
+
+	info = (struct ene_ub6250_info *)(us->extra);
+	info->bbuf = kmalloc(512, GFP_KERNEL);
+	if (!info->bbuf) {
+		kfree(us->extra);
+		return -ENOMEM;
 	}
 
 	us->transport_name = "ene_ub6250";
@@ -2337,12 +2356,13 @@ static int ene_ub6250_probe(struct usb_i
 		return result;
 
 	/* probe card type */
-	result = ene_get_card_type(us, REG_CARD_STATUS, &misc_reg03);
+	result = ene_get_card_type(us, REG_CARD_STATUS, info->bbuf);
 	if (result != USB_STOR_XFER_GOOD) {
 		usb_stor_disconnect(intf);
 		return USB_STOR_TRANSPORT_ERROR;
 	}
 
+	misc_reg03 = info->bbuf[0];
 	if (!(misc_reg03 & 0x01)) {
 		pr_info("ums_eneub6250: This driver only supports SD/MS cards. "
 			"It does not support SM cards.\n");
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/storage/isd200.c linux-libre-4.4.107-gnu/drivers/usb/storage/isd200.c
--- linux-libre-4.4-gnu/drivers/usb/storage/isd200.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/storage/isd200.c	2017-12-20 04:05:01.000000000 -0500
@@ -1520,8 +1520,11 @@ static void isd200_ata_command(struct sc
 
 	/* Make sure driver was initialized */
 
-	if (us->extra == NULL)
+	if (us->extra == NULL) {
 		usb_stor_dbg(us, "ERROR Driver not initialized\n");
+		srb->result = DID_ERROR << 16;
+		return;
+	}
 
 	scsi_set_resid(srb, 0);
 	/* scsi_bufflen might change in protocol translation to ata */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/storage/transport.c linux-libre-4.4.107-gnu/drivers/usb/storage/transport.c
--- linux-libre-4.4-gnu/drivers/usb/storage/transport.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/storage/transport.c	2017-12-20 04:05:01.000000000 -0500
@@ -919,10 +919,15 @@ int usb_stor_CB_transport(struct scsi_cm
 
 	/* COMMAND STAGE */
 	/* let's send the command via the control pipe */
+	/*
+	 * Command is sometime (f.e. after scsi_eh_prep_cmnd) on the stack.
+	 * Stack may be vmallocated.  So no DMA for us.  Make a copy.
+	 */
+	memcpy(us->iobuf, srb->cmnd, srb->cmd_len);
 	result = usb_stor_ctrl_transfer(us, us->send_ctrl_pipe,
 				      US_CBI_ADSC, 
 				      USB_TYPE_CLASS | USB_RECIP_INTERFACE, 0, 
-				      us->ifnum, srb->cmnd, srb->cmd_len);
+				      us->ifnum, us->iobuf, srb->cmd_len);
 
 	/* check the return code for the command */
 	usb_stor_dbg(us, "Call to usb_stor_ctrl_transfer() returned %d\n",
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/storage/uas.c linux-libre-4.4.107-gnu/drivers/usb/storage/uas.c
--- linux-libre-4.4-gnu/drivers/usb/storage/uas.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/storage/uas.c	2017-12-20 04:05:01.000000000 -0500
@@ -2,7 +2,7 @@
  * USB Attached SCSI
  * Note that this is not the same as the USB Mass Storage driver
  *
- * Copyright Hans de Goede <hdegoede@redhat.com> for Red Hat, Inc. 2013 - 2014
+ * Copyright Hans de Goede <hdegoede@redhat.com> for Red Hat, Inc. 2013 - 2016
  * Copyright Matthew Wilcox for Intel Corp, 2010
  * Copyright Sarah Sharp for Intel Corp, 2010
  *
@@ -757,6 +757,17 @@ static int uas_eh_bus_reset_handler(stru
 	return SUCCESS;
 }
 
+static int uas_target_alloc(struct scsi_target *starget)
+{
+	struct uas_dev_info *devinfo = (struct uas_dev_info *)
+			dev_to_shost(starget->dev.parent)->hostdata;
+
+	if (devinfo->flags & US_FL_NO_REPORT_LUNS)
+		starget->no_report_luns = 1;
+
+	return 0;
+}
+
 static int uas_slave_alloc(struct scsi_device *sdev)
 {
 	struct uas_dev_info *devinfo =
@@ -808,11 +819,12 @@ static struct scsi_host_template uas_hos
 	.module = THIS_MODULE,
 	.name = "uas",
 	.queuecommand = uas_queuecommand,
+	.target_alloc = uas_target_alloc,
 	.slave_alloc = uas_slave_alloc,
 	.slave_configure = uas_slave_configure,
 	.eh_abort_handler = uas_eh_abort_handler,
 	.eh_bus_reset_handler = uas_eh_bus_reset_handler,
-	.can_queue = 65536,	/* Is there a limit on the _host_ ? */
+	.can_queue = MAX_CMNDS,
 	.this_id = -1,
 	.sg_tablesize = SG_NONE,
 	.skip_settle_delay = 1,
@@ -837,14 +849,14 @@ MODULE_DEVICE_TABLE(usb, uas_usb_ids);
 static int uas_switch_interface(struct usb_device *udev,
 				struct usb_interface *intf)
 {
-	int alt;
+	struct usb_host_interface *alt;
 
 	alt = uas_find_uas_alt_setting(intf);
-	if (alt < 0)
-		return alt;
+	if (!alt)
+		return -ENODEV;
 
-	return usb_set_interface(udev,
-			intf->altsetting[0].desc.bInterfaceNumber, alt);
+	return usb_set_interface(udev, alt->desc.bInterfaceNumber,
+			alt->desc.bAlternateSetting);
 }
 
 static int uas_configure_endpoints(struct uas_dev_info *devinfo)
@@ -932,6 +944,12 @@ static int uas_probe(struct usb_interfac
 	if (result)
 		goto set_alt0;
 
+	/*
+	 * 1 tag is reserved for untagged commands +
+	 * 1 tag to avoid off by one errors in some bridge firmwares
+	 */
+	shost->can_queue = devinfo->qdepth - 2;
+
 	usb_set_intfdata(intf, shost);
 	result = scsi_add_host(shost, &intf->dev);
 	if (result)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/storage/uas-detect.h linux-libre-4.4.107-gnu/drivers/usb/storage/uas-detect.h
--- linux-libre-4.4-gnu/drivers/usb/storage/uas-detect.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/storage/uas-detect.h	2017-12-20 04:05:01.000000000 -0500
@@ -9,7 +9,8 @@ static int uas_is_interface(struct usb_h
 		intf->desc.bInterfaceProtocol == USB_PR_UAS);
 }
 
-static int uas_find_uas_alt_setting(struct usb_interface *intf)
+static struct usb_host_interface *uas_find_uas_alt_setting(
+		struct usb_interface *intf)
 {
 	int i;
 
@@ -17,10 +18,10 @@ static int uas_find_uas_alt_setting(stru
 		struct usb_host_interface *alt = &intf->altsetting[i];
 
 		if (uas_is_interface(alt))
-			return alt->desc.bAlternateSetting;
+			return alt;
 	}
 
-	return -ENODEV;
+	return NULL;
 }
 
 static int uas_find_endpoints(struct usb_host_interface *alt,
@@ -58,14 +59,14 @@ static int uas_use_uas_driver(struct usb
 	struct usb_device *udev = interface_to_usbdev(intf);
 	struct usb_hcd *hcd = bus_to_hcd(udev->bus);
 	unsigned long flags = id->driver_info;
-	int r, alt;
-
+	struct usb_host_interface *alt;
+	int r;
 
 	alt = uas_find_uas_alt_setting(intf);
-	if (alt < 0)
+	if (!alt)
 		return 0;
 
-	r = uas_find_endpoints(&intf->altsetting[alt], eps);
+	r = uas_find_endpoints(alt, eps);
 	if (r < 0)
 		return 0;
 
@@ -110,6 +111,10 @@ static int uas_use_uas_driver(struct usb
 		}
 	}
 
+	/* All Seagate disk enclosures have broken ATA pass-through support */
+	if (le16_to_cpu(udev->descriptor.idVendor) == 0x0bc2)
+		flags |= US_FL_NO_ATA_1X;
+
 	usb_stor_adjust_quirks(udev, &flags);
 
 	if (flags & US_FL_IGNORE_UAS) {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/storage/unusual_devs.h linux-libre-4.4.107-gnu/drivers/usb/storage/unusual_devs.h
--- linux-libre-4.4-gnu/drivers/usb/storage/unusual_devs.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/storage/unusual_devs.h	2017-12-20 04:05:01.000000000 -0500
@@ -1379,6 +1379,13 @@ UNUSUAL_DEV( 0x0bc2, 0x3010, 0x0000, 0x0
 		USB_SC_DEVICE, USB_PR_DEVICE, NULL,
 		US_FL_SANE_SENSE ),
 
+/* Reported by Kris Lindgren <kris.lindgren@gmail.com> */
+UNUSUAL_DEV( 0x0bc2, 0x3332, 0x0000, 0x9999,
+		"Seagate",
+		"External",
+		USB_SC_DEVICE, USB_PR_DEVICE, NULL,
+		US_FL_NO_WP_DETECT ),
+
 UNUSUAL_DEV(  0x0d49, 0x7310, 0x0000, 0x9999,
 		"Maxtor",
 		"USB to SATA",
@@ -2135,6 +2142,20 @@ UNUSUAL_DEV(  0x22b8, 0x3010, 0x0001, 0x
 		USB_SC_DEVICE, USB_PR_DEVICE, NULL,
 		US_FL_FIX_CAPACITY | US_FL_IGNORE_RESIDUE ),
 
+/* Reported-by George Cherian <george.cherian@cavium.com> */
+UNUSUAL_DEV(0x152d, 0x9561, 0x0000, 0x9999,
+		"JMicron",
+		"JMS56x",
+		USB_SC_DEVICE, USB_PR_DEVICE, NULL,
+		US_FL_NO_REPORT_OPCODES),
+
+/* Reported by David Kozub <zub@linux.fjfi.cvut.cz> */
+UNUSUAL_DEV(0x152d, 0x0578, 0x0000, 0x9999,
+		"JMicron",
+		"JMS567",
+		USB_SC_DEVICE, USB_PR_DEVICE, NULL,
+		US_FL_BROKEN_FUA),
+
 /*
  * Patch by Constantin Baranov <const@tltsu.ru>
  * Report by Andreas Koenecke.
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/storage/unusual_uas.h linux-libre-4.4.107-gnu/drivers/usb/storage/unusual_uas.h
--- linux-libre-4.4-gnu/drivers/usb/storage/unusual_uas.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/storage/unusual_uas.h	2017-12-20 04:05:01.000000000 -0500
@@ -64,6 +64,13 @@ UNUSUAL_DEV(0x0bc2, 0x3312, 0x0000, 0x99
 		USB_SC_DEVICE, USB_PR_DEVICE, NULL,
 		US_FL_NO_ATA_1X),
 
+/* Reported-by: David Webb <djw@noc.ac.uk> */
+UNUSUAL_DEV(0x0bc2, 0x331a, 0x0000, 0x9999,
+		"Seagate",
+		"Expansion Desk",
+		USB_SC_DEVICE, USB_PR_DEVICE, NULL,
+		US_FL_NO_REPORT_LUNS),
+
 /* Reported-by: Hans de Goede <hdegoede@redhat.com> */
 UNUSUAL_DEV(0x0bc2, 0x3320, 0x0000, 0x9999,
 		"Seagate",
@@ -116,9 +123,9 @@ UNUSUAL_DEV(0x0bc2, 0xab2a, 0x0000, 0x99
 /* Reported-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> */
 UNUSUAL_DEV(0x13fd, 0x3940, 0x0000, 0x9999,
 		"Initio Corporation",
-		"",
+		"INIC-3069",
 		USB_SC_DEVICE, USB_PR_DEVICE, NULL,
-		US_FL_NO_ATA_1X),
+		US_FL_NO_ATA_1X | US_FL_IGNORE_RESIDUE),
 
 /* Reported-by: Tom Arild Naess <tanaess@gmail.com> */
 UNUSUAL_DEV(0x152d, 0x0539, 0x0000, 0x9999,
@@ -134,6 +141,13 @@ UNUSUAL_DEV(0x152d, 0x0567, 0x0000, 0x99
 		USB_SC_DEVICE, USB_PR_DEVICE, NULL,
 		US_FL_BROKEN_FUA | US_FL_NO_REPORT_OPCODES),
 
+/* Reported-by: David Kozub <zub@linux.fjfi.cvut.cz> */
+UNUSUAL_DEV(0x152d, 0x0578, 0x0000, 0x9999,
+		"JMicron",
+		"JMS567",
+		USB_SC_DEVICE, USB_PR_DEVICE, NULL,
+		US_FL_BROKEN_FUA),
+
 /* Reported-by: Hans de Goede <hdegoede@redhat.com> */
 UNUSUAL_DEV(0x2109, 0x0711, 0x0000, 0x9999,
 		"VIA",
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/storage/usb.c linux-libre-4.4.107-gnu/drivers/usb/storage/usb.c
--- linux-libre-4.4-gnu/drivers/usb/storage/usb.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/storage/usb.c	2017-12-20 04:05:01.000000000 -0500
@@ -482,7 +482,7 @@ void usb_stor_adjust_quirks(struct usb_d
 			US_FL_NO_READ_DISC_INFO | US_FL_NO_READ_CAPACITY_16 |
 			US_FL_INITIAL_READ10 | US_FL_WRITE_CACHE |
 			US_FL_NO_ATA_1X | US_FL_NO_REPORT_OPCODES |
-			US_FL_MAX_SECTORS_240);
+			US_FL_MAX_SECTORS_240 | US_FL_NO_REPORT_LUNS);
 
 	p = quirks;
 	while (*p) {
@@ -532,6 +532,9 @@ void usb_stor_adjust_quirks(struct usb_d
 		case 'i':
 			f |= US_FL_IGNORE_DEVICE;
 			break;
+		case 'j':
+			f |= US_FL_NO_REPORT_LUNS;
+			break;
 		case 'l':
 			f |= US_FL_NOT_LOCKABLE;
 			break;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/usbip/stub_main.c linux-libre-4.4.107-gnu/drivers/usb/usbip/stub_main.c
--- linux-libre-4.4-gnu/drivers/usb/usbip/stub_main.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/usbip/stub_main.c	2017-12-20 04:05:01.000000000 -0500
@@ -262,7 +262,11 @@ void stub_device_cleanup_urbs(struct stu
 		kmem_cache_free(stub_priv_cache, priv);
 
 		kfree(urb->transfer_buffer);
+		urb->transfer_buffer = NULL;
+
 		kfree(urb->setup_packet);
+		urb->setup_packet = NULL;
+
 		usb_free_urb(urb);
 	}
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/usbip/stub_tx.c linux-libre-4.4.107-gnu/drivers/usb/usbip/stub_tx.c
--- linux-libre-4.4-gnu/drivers/usb/usbip/stub_tx.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/usbip/stub_tx.c	2017-12-20 04:05:01.000000000 -0500
@@ -28,7 +28,11 @@ static void stub_free_priv_and_urb(struc
 	struct urb *urb = priv->urb;
 
 	kfree(urb->setup_packet);
+	urb->setup_packet = NULL;
+
 	kfree(urb->transfer_buffer);
+	urb->transfer_buffer = NULL;
+
 	list_del(&priv->list);
 	kmem_cache_free(stub_priv_cache, priv);
 	usb_free_urb(urb);
@@ -174,6 +178,13 @@ static int stub_send_ret_submit(struct s
 		memset(&pdu_header, 0, sizeof(pdu_header));
 		memset(&msg, 0, sizeof(msg));
 
+		if (urb->actual_length > 0 && !urb->transfer_buffer) {
+			dev_err(&sdev->udev->dev,
+				"urb: actual_length %d transfer_buffer null\n",
+				urb->actual_length);
+			return -1;
+		}
+
 		if (usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS)
 			iovnum = 2 + urb->number_of_packets;
 		else
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/usbip/usbip_common.c linux-libre-4.4.107-gnu/drivers/usb/usbip/usbip_common.c
--- linux-libre-4.4-gnu/drivers/usb/usbip/usbip_common.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/usbip/usbip_common.c	2017-12-20 04:05:01.000000000 -0500
@@ -741,6 +741,17 @@ int usbip_recv_xbuff(struct usbip_device
 	if (!(size > 0))
 		return 0;
 
+	if (size > urb->transfer_buffer_length) {
+		/* should not happen, probably malicious packet */
+		if (ud->side == USBIP_STUB) {
+			usbip_event_add(ud, SDEV_EVENT_ERROR_TCP);
+			return 0;
+		} else {
+			usbip_event_add(ud, VDEV_EVENT_ERROR_TCP);
+			return -EPIPE;
+		}
+	}
+
 	ret = usbip_recv(ud->tcp_socket, urb->transfer_buffer, size);
 	if (ret != size) {
 		dev_err(&urb->dev->dev, "recv xbuf, %d\n", ret);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/usbip/vhci_hcd.c linux-libre-4.4.107-gnu/drivers/usb/usbip/vhci_hcd.c
--- linux-libre-4.4-gnu/drivers/usb/usbip/vhci_hcd.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/usbip/vhci_hcd.c	2017-12-20 04:05:01.000000000 -0500
@@ -215,14 +215,19 @@ done:
 
 static inline void hub_descriptor(struct usb_hub_descriptor *desc)
 {
+	int width;
+
 	memset(desc, 0, sizeof(*desc));
 	desc->bDescriptorType = USB_DT_HUB;
-	desc->bDescLength = 9;
 	desc->wHubCharacteristics = cpu_to_le16(
 		HUB_CHAR_INDV_PORT_LPSM | HUB_CHAR_COMMON_OCPM);
+
 	desc->bNbrPorts = VHCI_NPORTS;
-	desc->u.hs.DeviceRemovable[0] = 0xff;
-	desc->u.hs.DeviceRemovable[1] = 0xff;
+	BUILD_BUG_ON(VHCI_NPORTS > USB_MAXCHILDREN);
+	width = desc->bNbrPorts / 8 + 1;
+	desc->bDescLength = USB_DT_HUB_NONVAR_SIZE + 2 * width;
+	memset(&desc->u.hs.DeviceRemovable[0], 0, width);
+	memset(&desc->u.hs.DeviceRemovable[width], 0xff, width);
 }
 
 static int vhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/usb/wusbcore/wa-hc.c linux-libre-4.4.107-gnu/drivers/usb/wusbcore/wa-hc.c
--- linux-libre-4.4-gnu/drivers/usb/wusbcore/wa-hc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/usb/wusbcore/wa-hc.c	2017-12-20 04:05:01.000000000 -0500
@@ -39,6 +39,9 @@ int wa_create(struct wahc *wa, struct us
 	int result;
 	struct device *dev = &iface->dev;
 
+	if (iface->cur_altsetting->desc.bNumEndpoints < 3)
+		return -ENODEV;
+
 	result = wa_rpipes_create(wa);
 	if (result < 0)
 		goto error_rpipes_create;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/uwb/hwa-rc.c linux-libre-4.4.107-gnu/drivers/uwb/hwa-rc.c
--- linux-libre-4.4-gnu/drivers/uwb/hwa-rc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/uwb/hwa-rc.c	2017-12-20 04:05:01.000000000 -0500
@@ -825,6 +825,11 @@ static int hwarc_probe(struct usb_interf
 	struct hwarc *hwarc;
 	struct device *dev = &iface->dev;
 
+	if (iface->cur_altsetting->desc.bNumEndpoints < 1)
+		return -ENODEV;
+	if (!usb_endpoint_xfer_int(&iface->cur_altsetting->endpoint[0].desc))
+		return -ENODEV;
+
 	result = -ENOMEM;
 	uwb_rc = uwb_rc_alloc();
 	if (uwb_rc == NULL) {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/uwb/i1480/dfu/usb.c linux-libre-4.4.107-gnu/drivers/uwb/i1480/dfu/usb.c
--- linux-libre-4.4-gnu/drivers/uwb/i1480/dfu/usb.c	2016-01-10 21:16:03.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/uwb/i1480/dfu/usb.c	2017-12-20 11:45:37.000000000 -0500
@@ -341,6 +341,7 @@ error_submit_ep1:
 static
 int i1480_usb_probe(struct usb_interface *iface, const struct usb_device_id *id)
 {
+	struct usb_device *udev = interface_to_usbdev(iface);
 	struct i1480_usb *i1480_usb;
 	struct i1480 *i1480;
 	struct device *dev = &iface->dev;
@@ -352,8 +353,8 @@ int i1480_usb_probe(struct usb_interface
 			iface->cur_altsetting->desc.bInterfaceNumber);
 		goto error;
 	}
-	if (iface->num_altsetting > 1
-	    && interface_to_usbdev(iface)->descriptor.idProduct == 0xbabe) {
+	if (iface->num_altsetting > 1 &&
+			le16_to_cpu(udev->descriptor.idProduct) == 0xbabe) {
 		/* Need altsetting #1 [HW QUIRK] or EP1 won't work */
 		result = usb_set_interface(interface_to_usbdev(iface), 0, 1);
 		if (result < 0)
@@ -362,6 +363,9 @@ int i1480_usb_probe(struct usb_interface
 				 result);
 	}
 
+	if (iface->cur_altsetting->desc.bNumEndpoints < 1)
+		return -ENODEV;
+
 	result = -ENOMEM;
 	i1480_usb = kzalloc(sizeof(*i1480_usb), GFP_KERNEL);
 	if (i1480_usb == NULL) {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/uwb/lc-rc.c linux-libre-4.4.107-gnu/drivers/uwb/lc-rc.c
--- linux-libre-4.4-gnu/drivers/uwb/lc-rc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/uwb/lc-rc.c	2017-12-20 04:05:01.000000000 -0500
@@ -56,8 +56,11 @@ static struct uwb_rc *uwb_rc_find_by_ind
 	struct uwb_rc *rc = NULL;
 
 	dev = class_find_device(&uwb_rc_class, NULL, &index, uwb_rc_index_match);
-	if (dev)
+	if (dev) {
 		rc = dev_get_drvdata(dev);
+		put_device(dev);
+	}
+
 	return rc;
 }
 
@@ -467,7 +470,9 @@ struct uwb_rc *__uwb_rc_try_get(struct u
 	if (dev) {
 		rc = dev_get_drvdata(dev);
 		__uwb_rc_get(rc);
+		put_device(dev);
 	}
+
 	return rc;
 }
 EXPORT_SYMBOL_GPL(__uwb_rc_try_get);
@@ -520,8 +525,11 @@ struct uwb_rc *uwb_rc_get_by_grandpa(con
 
 	dev = class_find_device(&uwb_rc_class, NULL, grandpa_dev,
 				find_rc_grandpa);
-	if (dev)
+	if (dev) {
 		rc = dev_get_drvdata(dev);
+		put_device(dev);
+	}
+
 	return rc;
 }
 EXPORT_SYMBOL_GPL(uwb_rc_get_by_grandpa);
@@ -553,8 +561,10 @@ struct uwb_rc *uwb_rc_get_by_dev(const s
 	struct uwb_rc *rc = NULL;
 
 	dev = class_find_device(&uwb_rc_class, NULL, addr, find_rc_dev);
-	if (dev)
+	if (dev) {
 		rc = dev_get_drvdata(dev);
+		put_device(dev);
+	}
 
 	return rc;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/uwb/pal.c linux-libre-4.4.107-gnu/drivers/uwb/pal.c
--- linux-libre-4.4-gnu/drivers/uwb/pal.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/uwb/pal.c	2017-12-20 04:05:01.000000000 -0500
@@ -97,6 +97,8 @@ static bool uwb_rc_class_device_exists(s
 
 	dev = class_find_device(&uwb_rc_class, NULL, target_rc,	find_rc);
 
+	put_device(dev);
+
 	return (dev != NULL);
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/uwb/uwbd.c linux-libre-4.4.107-gnu/drivers/uwb/uwbd.c
--- linux-libre-4.4-gnu/drivers/uwb/uwbd.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/uwb/uwbd.c	2017-12-20 04:05:01.000000000 -0500
@@ -303,18 +303,22 @@ static int uwbd(void *param)
 /** Start the UWB daemon */
 void uwbd_start(struct uwb_rc *rc)
 {
-	rc->uwbd.task = kthread_run(uwbd, rc, "uwbd");
-	if (rc->uwbd.task == NULL)
+	struct task_struct *task = kthread_run(uwbd, rc, "uwbd");
+	if (IS_ERR(task)) {
+		rc->uwbd.task = NULL;
 		printk(KERN_ERR "UWB: Cannot start management daemon; "
 		       "UWB won't work\n");
-	else
+	} else {
+		rc->uwbd.task = task;
 		rc->uwbd.pid = rc->uwbd.task->pid;
+	}
 }
 
 /* Stop the UWB daemon and free any unprocessed events */
 void uwbd_stop(struct uwb_rc *rc)
 {
-	kthread_stop(rc->uwbd.task);
+	if (rc->uwbd.task)
+		kthread_stop(rc->uwbd.task);
 	uwbd_flush(rc);
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/vfio/pci/vfio_pci.c linux-libre-4.4.107-gnu/drivers/vfio/pci/vfio_pci.c
--- linux-libre-4.4-gnu/drivers/vfio/pci/vfio_pci.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/vfio/pci/vfio_pci.c	2017-12-20 04:05:01.000000000 -0500
@@ -446,7 +446,8 @@ static long vfio_pci_ioctl(void *device_
 		info.num_regions = VFIO_PCI_NUM_REGIONS;
 		info.num_irqs = VFIO_PCI_NUM_IRQS;
 
-		return copy_to_user((void __user *)arg, &info, minsz);
+		return copy_to_user((void __user *)arg, &info, minsz) ?
+			-EFAULT : 0;
 
 	} else if (cmd == VFIO_DEVICE_GET_REGION_INFO) {
 		struct pci_dev *pdev = vdev->pdev;
@@ -520,7 +521,8 @@ static long vfio_pci_ioctl(void *device_
 			return -EINVAL;
 		}
 
-		return copy_to_user((void __user *)arg, &info, minsz);
+		return copy_to_user((void __user *)arg, &info, minsz) ?
+			-EFAULT : 0;
 
 	} else if (cmd == VFIO_DEVICE_GET_IRQ_INFO) {
 		struct vfio_irq_info info;
@@ -555,12 +557,14 @@ static long vfio_pci_ioctl(void *device_
 		else
 			info.flags |= VFIO_IRQ_INFO_NORESIZE;
 
-		return copy_to_user((void __user *)arg, &info, minsz);
+		return copy_to_user((void __user *)arg, &info, minsz) ?
+			-EFAULT : 0;
 
 	} else if (cmd == VFIO_DEVICE_SET_IRQS) {
 		struct vfio_irq_set hdr;
+		size_t size;
 		u8 *data = NULL;
-		int ret = 0;
+		int max, ret = 0;
 
 		minsz = offsetofend(struct vfio_irq_set, count);
 
@@ -568,23 +572,31 @@ static long vfio_pci_ioctl(void *device_
 			return -EFAULT;
 
 		if (hdr.argsz < minsz || hdr.index >= VFIO_PCI_NUM_IRQS ||
+		    hdr.count >= (U32_MAX - hdr.start) ||
 		    hdr.flags & ~(VFIO_IRQ_SET_DATA_TYPE_MASK |
 				  VFIO_IRQ_SET_ACTION_TYPE_MASK))
 			return -EINVAL;
 
-		if (!(hdr.flags & VFIO_IRQ_SET_DATA_NONE)) {
-			size_t size;
-			int max = vfio_pci_get_irq_count(vdev, hdr.index);
+		max = vfio_pci_get_irq_count(vdev, hdr.index);
+		if (hdr.start >= max || hdr.start + hdr.count > max)
+			return -EINVAL;
 
-			if (hdr.flags & VFIO_IRQ_SET_DATA_BOOL)
-				size = sizeof(uint8_t);
-			else if (hdr.flags & VFIO_IRQ_SET_DATA_EVENTFD)
-				size = sizeof(int32_t);
-			else
-				return -EINVAL;
+		switch (hdr.flags & VFIO_IRQ_SET_DATA_TYPE_MASK) {
+		case VFIO_IRQ_SET_DATA_NONE:
+			size = 0;
+			break;
+		case VFIO_IRQ_SET_DATA_BOOL:
+			size = sizeof(uint8_t);
+			break;
+		case VFIO_IRQ_SET_DATA_EVENTFD:
+			size = sizeof(int32_t);
+			break;
+		default:
+			return -EINVAL;
+		}
 
-			if (hdr.argsz - minsz < hdr.count * size ||
-			    hdr.start >= max || hdr.start + hdr.count > max)
+		if (size) {
+			if (hdr.argsz - minsz < hdr.count * size)
 				return -EINVAL;
 
 			data = memdup_user((void __user *)(arg + minsz),
@@ -890,6 +902,10 @@ static int vfio_pci_mmap(void *device_da
 			return ret;
 
 		vdev->barmap[index] = pci_iomap(pdev, index, 0);
+		if (!vdev->barmap[index]) {
+			pci_release_selected_regions(pdev, 1 << index);
+			return -ENOMEM;
+		}
 	}
 
 	vma->vm_private_data = vdev;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/vfio/pci/vfio_pci_intrs.c linux-libre-4.4.107-gnu/drivers/vfio/pci/vfio_pci_intrs.c
--- linux-libre-4.4-gnu/drivers/vfio/pci/vfio_pci_intrs.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/vfio/pci/vfio_pci_intrs.c	2017-12-20 04:05:01.000000000 -0500
@@ -255,7 +255,7 @@ static int vfio_msi_enable(struct vfio_p
 	if (!is_irq_none(vdev))
 		return -EINVAL;
 
-	vdev->ctx = kzalloc(nvec * sizeof(struct vfio_pci_irq_ctx), GFP_KERNEL);
+	vdev->ctx = kcalloc(nvec, sizeof(struct vfio_pci_irq_ctx), GFP_KERNEL);
 	if (!vdev->ctx)
 		return -ENOMEM;
 
@@ -563,67 +563,80 @@ static int vfio_pci_set_msi_trigger(stru
 }
 
 static int vfio_pci_set_ctx_trigger_single(struct eventfd_ctx **ctx,
-					   uint32_t flags, void *data)
+					   unsigned int count, uint32_t flags,
+					   void *data)
 {
-	int32_t fd = *(int32_t *)data;
-
-	if (!(flags & VFIO_IRQ_SET_DATA_TYPE_MASK))
-		return -EINVAL;
-
 	/* DATA_NONE/DATA_BOOL enables loopback testing */
 	if (flags & VFIO_IRQ_SET_DATA_NONE) {
-		if (*ctx)
-			eventfd_signal(*ctx, 1);
-		return 0;
+		if (*ctx) {
+			if (count) {
+				eventfd_signal(*ctx, 1);
+			} else {
+				eventfd_ctx_put(*ctx);
+				*ctx = NULL;
+			}
+			return 0;
+		}
 	} else if (flags & VFIO_IRQ_SET_DATA_BOOL) {
-		uint8_t trigger = *(uint8_t *)data;
+		uint8_t trigger;
+
+		if (!count)
+			return -EINVAL;
+
+		trigger = *(uint8_t *)data;
 		if (trigger && *ctx)
 			eventfd_signal(*ctx, 1);
-		return 0;
-	}
 
-	/* Handle SET_DATA_EVENTFD */
-	if (fd == -1) {
-		if (*ctx)
-			eventfd_ctx_put(*ctx);
-		*ctx = NULL;
 		return 0;
-	} else if (fd >= 0) {
-		struct eventfd_ctx *efdctx;
-		efdctx = eventfd_ctx_fdget(fd);
-		if (IS_ERR(efdctx))
-			return PTR_ERR(efdctx);
-		if (*ctx)
-			eventfd_ctx_put(*ctx);
-		*ctx = efdctx;
+	} else if (flags & VFIO_IRQ_SET_DATA_EVENTFD) {
+		int32_t fd;
+
+		if (!count)
+			return -EINVAL;
+
+		fd = *(int32_t *)data;
+		if (fd == -1) {
+			if (*ctx)
+				eventfd_ctx_put(*ctx);
+			*ctx = NULL;
+		} else if (fd >= 0) {
+			struct eventfd_ctx *efdctx;
+
+			efdctx = eventfd_ctx_fdget(fd);
+			if (IS_ERR(efdctx))
+				return PTR_ERR(efdctx);
+
+			if (*ctx)
+				eventfd_ctx_put(*ctx);
+
+			*ctx = efdctx;
+		}
 		return 0;
-	} else
-		return -EINVAL;
+	}
+
+	return -EINVAL;
 }
 
 static int vfio_pci_set_err_trigger(struct vfio_pci_device *vdev,
 				    unsigned index, unsigned start,
 				    unsigned count, uint32_t flags, void *data)
 {
-	if (index != VFIO_PCI_ERR_IRQ_INDEX)
+	if (index != VFIO_PCI_ERR_IRQ_INDEX || start != 0 || count > 1)
 		return -EINVAL;
 
-	/*
-	 * We should sanitize start & count, but that wasn't caught
-	 * originally, so this IRQ index must forever ignore them :-(
-	 */
-
-	return vfio_pci_set_ctx_trigger_single(&vdev->err_trigger, flags, data);
+	return vfio_pci_set_ctx_trigger_single(&vdev->err_trigger,
+					       count, flags, data);
 }
 
 static int vfio_pci_set_req_trigger(struct vfio_pci_device *vdev,
 				    unsigned index, unsigned start,
 				    unsigned count, uint32_t flags, void *data)
 {
-	if (index != VFIO_PCI_REQ_IRQ_INDEX || start != 0 || count != 1)
+	if (index != VFIO_PCI_REQ_IRQ_INDEX || start != 0 || count > 1)
 		return -EINVAL;
 
-	return vfio_pci_set_ctx_trigger_single(&vdev->req_trigger, flags, data);
+	return vfio_pci_set_ctx_trigger_single(&vdev->req_trigger,
+					       count, flags, data);
 }
 
 int vfio_pci_set_irqs_ioctl(struct vfio_pci_device *vdev, uint32_t flags,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/vfio/pci/vfio_pci_rdwr.c linux-libre-4.4.107-gnu/drivers/vfio/pci/vfio_pci_rdwr.c
--- linux-libre-4.4-gnu/drivers/vfio/pci/vfio_pci_rdwr.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/vfio/pci/vfio_pci_rdwr.c	2017-12-20 04:05:01.000000000 -0500
@@ -190,7 +190,10 @@ ssize_t vfio_pci_vga_rw(struct vfio_pci_
 	if (!vdev->has_vga)
 		return -EINVAL;
 
-	switch (pos) {
+	if (pos > 0xbfffful)
+		return -EINVAL;
+
+	switch ((u32)pos) {
 	case 0xa0000 ... 0xbffff:
 		count = min(count, (size_t)(0xc0000 - pos));
 		iomem = ioremap_nocache(0xa0000, 0xbffff - 0xa0000 + 1);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/vfio/platform/vfio_platform_common.c linux-libre-4.4.107-gnu/drivers/vfio/platform/vfio_platform_common.c
--- linux-libre-4.4-gnu/drivers/vfio/platform/vfio_platform_common.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/vfio/platform/vfio_platform_common.c	2017-12-20 04:05:01.000000000 -0500
@@ -219,7 +219,8 @@ static long vfio_platform_ioctl(void *de
 		info.num_regions = vdev->num_regions;
 		info.num_irqs = vdev->num_irqs;
 
-		return copy_to_user((void __user *)arg, &info, minsz);
+		return copy_to_user((void __user *)arg, &info, minsz) ?
+			-EFAULT : 0;
 
 	} else if (cmd == VFIO_DEVICE_GET_REGION_INFO) {
 		struct vfio_region_info info;
@@ -240,7 +241,8 @@ static long vfio_platform_ioctl(void *de
 		info.size = vdev->regions[info.index].size;
 		info.flags = vdev->regions[info.index].flags;
 
-		return copy_to_user((void __user *)arg, &info, minsz);
+		return copy_to_user((void __user *)arg, &info, minsz) ?
+			-EFAULT : 0;
 
 	} else if (cmd == VFIO_DEVICE_GET_IRQ_INFO) {
 		struct vfio_irq_info info;
@@ -259,7 +261,8 @@ static long vfio_platform_ioctl(void *de
 		info.flags = vdev->irqs[info.index].flags;
 		info.count = vdev->irqs[info.index].count;
 
-		return copy_to_user((void __user *)arg, &info, minsz);
+		return copy_to_user((void __user *)arg, &info, minsz) ?
+			-EFAULT : 0;
 
 	} else if (cmd == VFIO_DEVICE_SET_IRQS) {
 		struct vfio_irq_set hdr;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/vfio/vfio.c linux-libre-4.4.107-gnu/drivers/vfio/vfio.c
--- linux-libre-4.4-gnu/drivers/vfio/vfio.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/vfio/vfio.c	2017-12-20 04:05:01.000000000 -0500
@@ -296,6 +296,34 @@ static void vfio_group_put(struct vfio_g
 	kref_put_mutex(&group->kref, vfio_group_release, &vfio.group_lock);
 }
 
+struct vfio_group_put_work {
+	struct work_struct work;
+	struct vfio_group *group;
+};
+
+static void vfio_group_put_bg(struct work_struct *work)
+{
+	struct vfio_group_put_work *do_work;
+
+	do_work = container_of(work, struct vfio_group_put_work, work);
+
+	vfio_group_put(do_work->group);
+	kfree(do_work);
+}
+
+static void vfio_group_schedule_put(struct vfio_group *group)
+{
+	struct vfio_group_put_work *do_work;
+
+	do_work = kmalloc(sizeof(*do_work), GFP_KERNEL);
+	if (WARN_ON(!do_work))
+		return;
+
+	INIT_WORK(&do_work->work, vfio_group_put_bg);
+	do_work->group = group;
+	schedule_work(&do_work->work);
+}
+
 /* Assume group_lock or group reference is held */
 static void vfio_group_get(struct vfio_group *group)
 {
@@ -620,7 +648,14 @@ static int vfio_iommu_group_notifier(str
 		break;
 	}
 
-	vfio_group_put(group);
+	/*
+	 * If we're the last reference to the group, the group will be
+	 * released, which includes unregistering the iommu group notifier.
+	 * We hold a read-lock on that notifier list, unregistering needs
+	 * a write-lock... deadlock.  Release our reference asynchronously
+	 * to avoid that situation.
+	 */
+	vfio_group_schedule_put(group);
 	return NOTIFY_OK;
 }
 
@@ -1552,6 +1587,15 @@ void vfio_group_put_external_user(struct
 }
 EXPORT_SYMBOL_GPL(vfio_group_put_external_user);
 
+bool vfio_external_group_match_file(struct vfio_group *test_group,
+				    struct file *filep)
+{
+	struct vfio_group *group = filep->private_data;
+
+	return (filep->f_op == &vfio_group_fops) && (group == test_group);
+}
+EXPORT_SYMBOL_GPL(vfio_external_group_match_file);
+
 int vfio_external_user_iommu_id(struct vfio_group *group)
 {
 	return iommu_group_id(group->iommu_group);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/vfio/vfio_iommu_spapr_tce.c linux-libre-4.4.107-gnu/drivers/vfio/vfio_iommu_spapr_tce.c
--- linux-libre-4.4-gnu/drivers/vfio/vfio_iommu_spapr_tce.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/vfio/vfio_iommu_spapr_tce.c	2017-12-20 04:05:01.000000000 -0500
@@ -511,6 +511,12 @@ static long tce_iommu_build_v2(struct tc
 	unsigned long hpa;
 	enum dma_data_direction dirtmp;
 
+	if (!tbl->it_userspace) {
+		ret = tce_iommu_userspace_view_alloc(tbl);
+		if (ret)
+			return ret;
+	}
+
 	for (i = 0; i < pages; ++i) {
 		struct mm_iommu_table_group_mem_t *mem = NULL;
 		unsigned long *pua = IOMMU_TABLE_USERSPACE_ENTRY(tbl,
@@ -584,15 +590,6 @@ static long tce_iommu_create_table(struc
 	WARN_ON(!ret && !(*ptbl)->it_ops->free);
 	WARN_ON(!ret && ((*ptbl)->it_allocated_size != table_size));
 
-	if (!ret && container->v2) {
-		ret = tce_iommu_userspace_view_alloc(*ptbl);
-		if (ret)
-			(*ptbl)->it_ops->free(*ptbl);
-	}
-
-	if (ret)
-		decrement_locked_vm(table_size >> PAGE_SHIFT);
-
 	return ret;
 }
 
@@ -1064,10 +1061,7 @@ static int tce_iommu_take_ownership(stru
 		if (!tbl || !tbl->it_map)
 			continue;
 
-		rc = tce_iommu_userspace_view_alloc(tbl);
-		if (!rc)
-			rc = iommu_take_ownership(tbl);
-
+		rc = iommu_take_ownership(tbl);
 		if (rc) {
 			for (j = 0; j < i; ++j)
 				iommu_release_ownership(
@@ -1169,6 +1163,10 @@ static int tce_iommu_attach_group(void *
 	/* pr_debug("tce_vfio: Attaching group #%u to iommu %p\n",
 			iommu_group_id(iommu_group), iommu_group); */
 	table_group = iommu_group_get_iommudata(iommu_group);
+	if (!table_group) {
+		ret = -ENODEV;
+		goto unlock_exit;
+	}
 
 	if (tce_groups_attached(container) && (!table_group->ops ||
 			!table_group->ops->take_ownership ||
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/vfio/vfio_iommu_type1.c linux-libre-4.4.107-gnu/drivers/vfio/vfio_iommu_type1.c
--- linux-libre-4.4-gnu/drivers/vfio/vfio_iommu_type1.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/vfio/vfio_iommu_type1.c	2017-12-20 04:05:01.000000000 -0500
@@ -130,57 +130,34 @@ static void vfio_unlink_dma(struct vfio_
 	rb_erase(&old->node, &iommu->dma_list);
 }
 
-struct vwork {
-	struct mm_struct	*mm;
-	long			npage;
-	struct work_struct	work;
-};
-
-/* delayed decrement/increment for locked_vm */
-static void vfio_lock_acct_bg(struct work_struct *work)
+static int vfio_lock_acct(long npage, bool *lock_cap)
 {
-	struct vwork *vwork = container_of(work, struct vwork, work);
-	struct mm_struct *mm;
+	int ret = 0;
 
-	mm = vwork->mm;
-	down_write(&mm->mmap_sem);
-	mm->locked_vm += vwork->npage;
-	up_write(&mm->mmap_sem);
-	mmput(mm);
-	kfree(vwork);
-}
+	if (!npage)
+		return 0;
 
-static void vfio_lock_acct(long npage)
-{
-	struct vwork *vwork;
-	struct mm_struct *mm;
+	if (!current->mm)
+		return -ESRCH; /* process exited */
 
-	if (!current->mm || !npage)
-		return; /* process exited or nothing to do */
+	down_write(&current->mm->mmap_sem);
+	if (npage > 0) {
+		if (lock_cap ? !*lock_cap : !capable(CAP_IPC_LOCK)) {
+			unsigned long limit;
 
-	if (down_write_trylock(&current->mm->mmap_sem)) {
-		current->mm->locked_vm += npage;
-		up_write(&current->mm->mmap_sem);
-		return;
-	}
+			limit = rlimit(RLIMIT_MEMLOCK) >> PAGE_SHIFT;
 
-	/*
-	 * Couldn't get mmap_sem lock, so must setup to update
-	 * mm->locked_vm later. If locked_vm were atomic, we
-	 * wouldn't need this silliness
-	 */
-	vwork = kmalloc(sizeof(struct vwork), GFP_KERNEL);
-	if (!vwork)
-		return;
-	mm = get_task_mm(current);
-	if (!mm) {
-		kfree(vwork);
-		return;
+			if (current->mm->locked_vm + npage > limit)
+				ret = -ENOMEM;
+		}
 	}
-	INIT_WORK(&vwork->work, vfio_lock_acct_bg);
-	vwork->mm = mm;
-	vwork->npage = npage;
-	schedule_work(&vwork->work);
+
+	if (!ret)
+		current->mm->locked_vm += npage;
+
+	up_write(&current->mm->mmap_sem);
+
+	return ret;
 }
 
 /*
@@ -262,9 +239,9 @@ static int vaddr_get_pfn(unsigned long v
 static long vfio_pin_pages(unsigned long vaddr, long npage,
 			   int prot, unsigned long *pfn_base)
 {
-	unsigned long limit = rlimit(RLIMIT_MEMLOCK) >> PAGE_SHIFT;
+	unsigned long pfn = 0, limit = rlimit(RLIMIT_MEMLOCK) >> PAGE_SHIFT;
 	bool lock_cap = capable(CAP_IPC_LOCK);
-	long ret, i;
+	long ret, i = 1;
 	bool rsvd;
 
 	if (!current->mm)
@@ -283,16 +260,11 @@ static long vfio_pin_pages(unsigned long
 		return -ENOMEM;
 	}
 
-	if (unlikely(disable_hugepages)) {
-		if (!rsvd)
-			vfio_lock_acct(1);
-		return 1;
-	}
+	if (unlikely(disable_hugepages))
+		goto out;
 
 	/* Lock all the consecutive pages from pfn_base */
-	for (i = 1, vaddr += PAGE_SIZE; i < npage; i++, vaddr += PAGE_SIZE) {
-		unsigned long pfn = 0;
-
+	for (vaddr += PAGE_SIZE; i < npage; i++, vaddr += PAGE_SIZE) {
 		ret = vaddr_get_pfn(vaddr, prot, &pfn);
 		if (ret)
 			break;
@@ -308,12 +280,24 @@ static long vfio_pin_pages(unsigned long
 			put_pfn(pfn, prot);
 			pr_warn("%s: RLIMIT_MEMLOCK (%ld) exceeded\n",
 				__func__, limit << PAGE_SHIFT);
-			break;
+			ret = -ENOMEM;
+			goto unpin_out;
 		}
 	}
 
+out:
 	if (!rsvd)
-		vfio_lock_acct(i);
+		ret = vfio_lock_acct(i, &lock_cap);
+
+unpin_out:
+	if (ret) {
+		if (!rsvd) {
+			for (pfn = *pfn_base ; i ; pfn++, i--)
+				put_pfn(pfn, prot);
+		}
+
+		return ret;
+	}
 
 	return i;
 }
@@ -328,7 +312,7 @@ static long vfio_unpin_pages(unsigned lo
 		unlocked += put_pfn(pfn++, prot);
 
 	if (do_accounting)
-		vfio_lock_acct(-unlocked);
+		vfio_lock_acct(-unlocked, NULL);
 
 	return unlocked;
 }
@@ -390,7 +374,7 @@ static void vfio_unmap_unpin(struct vfio
 		cond_resched();
 	}
 
-	vfio_lock_acct(-unlocked);
+	vfio_lock_acct(-unlocked, NULL);
 }
 
 static void vfio_remove_dma(struct vfio_iommu *iommu, struct vfio_dma *dma)
@@ -999,7 +983,8 @@ static long vfio_iommu_type1_ioctl(void
 
 		info.iova_pgsizes = vfio_pgsize_bitmap(iommu);
 
-		return copy_to_user((void __user *)arg, &info, minsz);
+		return copy_to_user((void __user *)arg, &info, minsz) ?
+			-EFAULT : 0;
 
 	} else if (cmd == VFIO_IOMMU_MAP_DMA) {
 		struct vfio_iommu_type1_dma_map map;
@@ -1032,7 +1017,8 @@ static long vfio_iommu_type1_ioctl(void
 		if (ret)
 			return ret;
 
-		return copy_to_user((void __user *)arg, &unmap, minsz);
+		return copy_to_user((void __user *)arg, &unmap, minsz) ?
+			-EFAULT : 0;
 	}
 
 	return -ENOTTY;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/vhost/scsi.c linux-libre-4.4.107-gnu/drivers/vhost/scsi.c
--- linux-libre-4.4-gnu/drivers/vhost/scsi.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/vhost/scsi.c	2017-12-20 04:05:01.000000000 -0500
@@ -88,7 +88,7 @@ struct vhost_scsi_cmd {
 	struct scatterlist *tvc_prot_sgl;
 	struct page **tvc_upages;
 	/* Pointer to response header iovec */
-	struct iovec *tvc_resp_iov;
+	struct iovec tvc_resp_iov;
 	/* Pointer to vhost_scsi for our device */
 	struct vhost_scsi *tvc_vhost;
 	/* Pointer to vhost_virtqueue for the cmd */
@@ -557,7 +557,7 @@ static void vhost_scsi_complete_cmd_work
 		memcpy(v_rsp.sense, cmd->tvc_sense_buf,
 		       se_cmd->scsi_sense_length);
 
-		iov_iter_init(&iov_iter, READ, cmd->tvc_resp_iov,
+		iov_iter_init(&iov_iter, READ, &cmd->tvc_resp_iov,
 			      cmd->tvc_in_iovs, sizeof(v_rsp));
 		ret = copy_to_iter(&v_rsp, sizeof(v_rsp), &iov_iter);
 		if (likely(ret == sizeof(v_rsp))) {
@@ -703,6 +703,7 @@ vhost_scsi_iov_to_sgl(struct vhost_scsi_
 		      struct scatterlist *sg, int sg_count)
 {
 	size_t off = iter->iov_offset;
+	struct scatterlist *p = sg;
 	int i, ret;
 
 	for (i = 0; i < iter->nr_segs; i++) {
@@ -711,8 +712,8 @@ vhost_scsi_iov_to_sgl(struct vhost_scsi_
 
 		ret = vhost_scsi_map_to_sgl(cmd, base, len, sg, write);
 		if (ret < 0) {
-			for (i = 0; i < sg_count; i++) {
-				struct page *page = sg_page(&sg[i]);
+			while (p < sg) {
+				struct page *page = sg_page(p++);
 				if (page)
 					put_page(page);
 			}
@@ -1054,7 +1055,7 @@ vhost_scsi_handle_vq(struct vhost_scsi *
 		}
 		cmd->tvc_vhost = vs;
 		cmd->tvc_vq = vq;
-		cmd->tvc_resp_iov = &vq->iov[out];
+		cmd->tvc_resp_iov = vq->iov[out];
 		cmd->tvc_in_iovs = in;
 
 		pr_debug("vhost_scsi got command opcode: %#02x, lun: %d\n",
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/video/backlight/adp5520_bl.c linux-libre-4.4.107-gnu/drivers/video/backlight/adp5520_bl.c
--- linux-libre-4.4-gnu/drivers/video/backlight/adp5520_bl.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/video/backlight/adp5520_bl.c	2017-12-20 04:05:01.000000000 -0500
@@ -332,10 +332,18 @@ static int adp5520_bl_probe(struct platf
 	}
 
 	platform_set_drvdata(pdev, bl);
-	ret |= adp5520_bl_setup(bl);
+	ret = adp5520_bl_setup(bl);
+	if (ret) {
+		dev_err(&pdev->dev, "failed to setup\n");
+		if (data->pdata->en_ambl_sens)
+			sysfs_remove_group(&bl->dev.kobj,
+					&adp5520_bl_attr_group);
+		return ret;
+	}
+
 	backlight_update_status(bl);
 
-	return ret;
+	return 0;
 }
 
 static int adp5520_bl_remove(struct platform_device *pdev)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/video/backlight/lcd.c linux-libre-4.4.107-gnu/drivers/video/backlight/lcd.c
--- linux-libre-4.4-gnu/drivers/video/backlight/lcd.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/video/backlight/lcd.c	2017-12-20 04:05:01.000000000 -0500
@@ -226,6 +226,8 @@ struct lcd_device *lcd_device_register(c
 	dev_set_name(&new_ld->dev, "%s", name);
 	dev_set_drvdata(&new_ld->dev, devdata);
 
+	new_ld->ops = ops;
+
 	rc = device_register(&new_ld->dev);
 	if (rc) {
 		put_device(&new_ld->dev);
@@ -238,8 +240,6 @@ struct lcd_device *lcd_device_register(c
 		return ERR_PTR(rc);
 	}
 
-	new_ld->ops = ops;
-
 	return new_ld;
 }
 EXPORT_SYMBOL(lcd_device_register);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/video/console/fbcon.c linux-libre-4.4.107-gnu/drivers/video/console/fbcon.c
--- linux-libre-4.4-gnu/drivers/video/console/fbcon.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/video/console/fbcon.c	2017-12-20 04:05:01.000000000 -0500
@@ -709,6 +709,7 @@ static int con2fb_acquire_newinfo(struct
 	}
 
 	if (!err) {
+		ops->cur_blink_jiffies = HZ / 5;
 		info->fbcon_par = ops;
 
 		if (vc)
@@ -956,6 +957,7 @@ static const char *fbcon_startup(void)
 	ops->currcon = -1;
 	ops->graphics = 1;
 	ops->cur_rotate = -1;
+	ops->cur_blink_jiffies = HZ / 5;
 	info->fbcon_par = ops;
 	p->con_rotate = initial_rotation;
 	set_blitting_type(vc, info);
@@ -1166,6 +1168,8 @@ static void fbcon_free_font(struct displ
 	p->userfont = 0;
 }
 
+static void set_vc_hi_font(struct vc_data *vc, bool set);
+
 static void fbcon_deinit(struct vc_data *vc)
 {
 	struct display *p = &fb_display[vc->vc_num];
@@ -1201,6 +1205,9 @@ finished:
 	if (free_font)
 		vc->vc_font.data = NULL;
 
+	if (vc->vc_hi_font_mask)
+		set_vc_hi_font(vc, false);
+
 	if (!con_is_bound(&fb_con))
 		fbcon_exit();
 
@@ -2437,32 +2444,10 @@ static int fbcon_get_font(struct vc_data
 	return 0;
 }
 
-static int fbcon_do_set_font(struct vc_data *vc, int w, int h,
-			     const u8 * data, int userfont)
+/* set/clear vc_hi_font_mask and update vc attrs accordingly */
+static void set_vc_hi_font(struct vc_data *vc, bool set)
 {
-	struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]];
-	struct fbcon_ops *ops = info->fbcon_par;
-	struct display *p = &fb_display[vc->vc_num];
-	int resize;
-	int cnt;
-	char *old_data = NULL;
-
-	if (CON_IS_VISIBLE(vc) && softback_lines)
-		fbcon_set_origin(vc);
-
-	resize = (w != vc->vc_font.width) || (h != vc->vc_font.height);
-	if (p->userfont)
-		old_data = vc->vc_font.data;
-	if (userfont)
-		cnt = FNTCHARCNT(data);
-	else
-		cnt = 256;
-	vc->vc_font.data = (void *)(p->fontdata = data);
-	if ((p->userfont = userfont))
-		REFCOUNT(data)++;
-	vc->vc_font.width = w;
-	vc->vc_font.height = h;
-	if (vc->vc_hi_font_mask && cnt == 256) {
+	if (!set) {
 		vc->vc_hi_font_mask = 0;
 		if (vc->vc_can_do_color) {
 			vc->vc_complement_mask >>= 1;
@@ -2485,7 +2470,7 @@ static int fbcon_do_set_font(struct vc_d
 			    ((c & 0xfe00) >> 1) | (c & 0xff);
 			vc->vc_attr >>= 1;
 		}
-	} else if (!vc->vc_hi_font_mask && cnt == 512) {
+	} else {
 		vc->vc_hi_font_mask = 0x100;
 		if (vc->vc_can_do_color) {
 			vc->vc_complement_mask <<= 1;
@@ -2517,8 +2502,38 @@ static int fbcon_do_set_font(struct vc_d
 			} else
 				vc->vc_video_erase_char = c & ~0x100;
 		}
-
 	}
+}
+
+static int fbcon_do_set_font(struct vc_data *vc, int w, int h,
+			     const u8 * data, int userfont)
+{
+	struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]];
+	struct fbcon_ops *ops = info->fbcon_par;
+	struct display *p = &fb_display[vc->vc_num];
+	int resize;
+	int cnt;
+	char *old_data = NULL;
+
+	if (CON_IS_VISIBLE(vc) && softback_lines)
+		fbcon_set_origin(vc);
+
+	resize = (w != vc->vc_font.width) || (h != vc->vc_font.height);
+	if (p->userfont)
+		old_data = vc->vc_font.data;
+	if (userfont)
+		cnt = FNTCHARCNT(data);
+	else
+		cnt = 256;
+	vc->vc_font.data = (void *)(p->fontdata = data);
+	if ((p->userfont = userfont))
+		REFCOUNT(data)++;
+	vc->vc_font.width = w;
+	vc->vc_font.height = h;
+	if (vc->vc_hi_font_mask && cnt == 256)
+		set_vc_hi_font(vc, false);
+	else if (!vc->vc_hi_font_mask && cnt == 512)
+		set_vc_hi_font(vc, true);
 
 	if (resize) {
 		int cols, rows;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/video/fbdev/aty/atyfb_base.c linux-libre-4.4.107-gnu/drivers/video/fbdev/aty/atyfb_base.c
--- linux-libre-4.4-gnu/drivers/video/fbdev/aty/atyfb_base.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/video/fbdev/aty/atyfb_base.c	2017-12-20 04:05:01.000000000 -0500
@@ -1861,7 +1861,7 @@ static int atyfb_ioctl(struct fb_info *i
 #if defined(DEBUG) && defined(CONFIG_FB_ATY_CT)
 	case ATYIO_CLKR:
 		if (M64_HAS(INTEGRATED)) {
-			struct atyclk clk;
+			struct atyclk clk = { 0 };
 			union aty_pll *pll = &par->pll;
 			u32 dsp_config = pll->ct.dsp_config;
 			u32 dsp_on_off = pll->ct.dsp_on_off;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/video/fbdev/au1200fb.c linux-libre-4.4.107-gnu/drivers/video/fbdev/au1200fb.c
--- linux-libre-4.4-gnu/drivers/video/fbdev/au1200fb.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/video/fbdev/au1200fb.c	2017-12-20 04:05:01.000000000 -0500
@@ -1680,8 +1680,10 @@ static int au1200fb_drv_probe(struct pla
 
 		fbi = framebuffer_alloc(sizeof(struct au1200fb_device),
 					&dev->dev);
-		if (!fbi)
+		if (!fbi) {
+			ret = -ENOMEM;
 			goto failed;
+		}
 
 		_au1200fb_infos[plane] = fbi;
 		fbdev = fbi->par;
@@ -1699,7 +1701,8 @@ static int au1200fb_drv_probe(struct pla
 		if (!fbdev->fb_mem) {
 			print_err("fail to allocate frambuffer (size: %dK))",
 				  fbdev->fb_len / 1024);
-			return -ENOMEM;
+			ret = -ENOMEM;
+			goto failed;
 		}
 
 		/*
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/video/fbdev/cobalt_lcdfb.c linux-libre-4.4.107-gnu/drivers/video/fbdev/cobalt_lcdfb.c
--- linux-libre-4.4-gnu/drivers/video/fbdev/cobalt_lcdfb.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/video/fbdev/cobalt_lcdfb.c	2017-12-20 04:05:01.000000000 -0500
@@ -350,6 +350,11 @@ static int cobalt_lcdfb_probe(struct pla
 	info->screen_size = resource_size(res);
 	info->screen_base = devm_ioremap(&dev->dev, res->start,
 					 info->screen_size);
+	if (!info->screen_base) {
+		framebuffer_release(info);
+		return -ENOMEM;
+	}
+
 	info->fbops = &cobalt_lcd_fbops;
 	info->fix = cobalt_lcdfb_fix;
 	info->fix.smem_start = res->start;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/video/fbdev/controlfb.h linux-libre-4.4.107-gnu/drivers/video/fbdev/controlfb.h
--- linux-libre-4.4-gnu/drivers/video/fbdev/controlfb.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/video/fbdev/controlfb.h	2017-12-20 04:05:01.000000000 -0500
@@ -141,5 +141,7 @@ static struct max_cmodes control_mac_mod
 	{{ 1, 2}},	/* 1152x870, 75Hz */
 	{{ 0, 1}},	/* 1280x960, 75Hz */
 	{{ 0, 1}},	/* 1280x1024, 75Hz */
+	{{ 1, 2}},	/* 1152x768, 60Hz */
+	{{ 0, 1}},	/* 1600x1024, 60Hz */
 };
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/video/fbdev/core/fbcmap.c linux-libre-4.4.107-gnu/drivers/video/fbdev/core/fbcmap.c
--- linux-libre-4.4-gnu/drivers/video/fbdev/core/fbcmap.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/video/fbdev/core/fbcmap.c	2017-12-20 04:05:01.000000000 -0500
@@ -163,17 +163,18 @@ void fb_dealloc_cmap(struct fb_cmap *cma
 
 int fb_copy_cmap(const struct fb_cmap *from, struct fb_cmap *to)
 {
-	int tooff = 0, fromoff = 0;
-	int size;
+	unsigned int tooff = 0, fromoff = 0;
+	size_t size;
 
 	if (to->start > from->start)
 		fromoff = to->start - from->start;
 	else
 		tooff = from->start - to->start;
-	size = to->len - tooff;
-	if (size > (int) (from->len - fromoff))
-		size = from->len - fromoff;
-	if (size <= 0)
+	if (fromoff >= from->len || tooff >= to->len)
+		return -EINVAL;
+
+	size = min_t(size_t, to->len - tooff, from->len - fromoff);
+	if (size == 0)
 		return -EINVAL;
 	size *= sizeof(u16);
 
@@ -187,17 +188,18 @@ int fb_copy_cmap(const struct fb_cmap *f
 
 int fb_cmap_to_user(const struct fb_cmap *from, struct fb_cmap_user *to)
 {
-	int tooff = 0, fromoff = 0;
-	int size;
+	unsigned int tooff = 0, fromoff = 0;
+	size_t size;
 
 	if (to->start > from->start)
 		fromoff = to->start - from->start;
 	else
 		tooff = from->start - to->start;
-	size = to->len - tooff;
-	if (size > (int) (from->len - fromoff))
-		size = from->len - fromoff;
-	if (size <= 0)
+	if (fromoff >= from->len || tooff >= to->len)
+		return -EINVAL;
+
+	size = min_t(size_t, to->len - tooff, from->len - fromoff);
+	if (size == 0)
 		return -EINVAL;
 	size *= sizeof(u16);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/video/fbdev/da8xx-fb.c linux-libre-4.4.107-gnu/drivers/video/fbdev/da8xx-fb.c
--- linux-libre-4.4-gnu/drivers/video/fbdev/da8xx-fb.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/video/fbdev/da8xx-fb.c	2017-12-20 04:05:01.000000000 -0500
@@ -209,8 +209,7 @@ static struct fb_videomode known_lcd_pan
 		.lower_margin   = 2,
 		.hsync_len      = 0,
 		.vsync_len      = 0,
-		.sync           = FB_SYNC_CLK_INVERT |
-			FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
+		.sync           = FB_SYNC_CLK_INVERT,
 	},
 	/* Sharp LK043T1DG01 */
 	[1] = {
@@ -224,7 +223,7 @@ static struct fb_videomode known_lcd_pan
 		.lower_margin   = 2,
 		.hsync_len      = 41,
 		.vsync_len      = 10,
-		.sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
+		.sync           = 0,
 		.flag           = 0,
 	},
 	[2] = {
@@ -239,7 +238,7 @@ static struct fb_videomode known_lcd_pan
 		.lower_margin   = 10,
 		.hsync_len      = 10,
 		.vsync_len      = 10,
-		.sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
+		.sync           = 0,
 		.flag           = 0,
 	},
 	[3] = {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/video/fbdev/efifb.c linux-libre-4.4.107-gnu/drivers/video/fbdev/efifb.c
--- linux-libre-4.4-gnu/drivers/video/fbdev/efifb.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/video/fbdev/efifb.c	2017-12-20 04:05:01.000000000 -0500
@@ -52,9 +52,9 @@ static int efifb_setcolreg(unsigned regn
 		return 1;
 
 	if (regno < 16) {
-		red   >>= 8;
-		green >>= 8;
-		blue  >>= 8;
+		red   >>= 16 - info->var.red.length;
+		green >>= 16 - info->var.green.length;
+		blue  >>= 16 - info->var.blue.length;
 		((u32 *)(info->pseudo_palette))[regno] =
 			(red   << info->var.red.offset)   |
 			(green << info->var.green.offset) |
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/video/fbdev/Kconfig linux-libre-4.4.107-gnu/drivers/video/fbdev/Kconfig
--- linux-libre-4.4-gnu/drivers/video/fbdev/Kconfig	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/video/fbdev/Kconfig	2017-12-20 04:05:01.000000000 -0500
@@ -2249,7 +2249,6 @@ config XEN_FBDEV_FRONTEND
 	select FB_SYS_IMAGEBLIT
 	select FB_SYS_FOPS
 	select FB_DEFERRED_IO
-	select INPUT_XEN_KBDDEV_FRONTEND if INPUT_MISC
 	select XEN_XENBUS_FRONTEND
 	default y
 	help
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/video/fbdev/pmag-ba-fb.c linux-libre-4.4.107-gnu/drivers/video/fbdev/pmag-ba-fb.c
--- linux-libre-4.4-gnu/drivers/video/fbdev/pmag-ba-fb.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/video/fbdev/pmag-ba-fb.c	2017-12-20 04:05:01.000000000 -0500
@@ -129,7 +129,7 @@ static struct fb_ops pmagbafb_ops = {
 /*
  * Turn the hardware cursor off.
  */
-static void __init pmagbafb_erase_cursor(struct fb_info *info)
+static void pmagbafb_erase_cursor(struct fb_info *info)
 {
 	struct pmagbafb_par *par = info->par;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/video/fbdev/udlfb.c linux-libre-4.4.107-gnu/drivers/video/fbdev/udlfb.c
--- linux-libre-4.4-gnu/drivers/video/fbdev/udlfb.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/video/fbdev/udlfb.c	2017-12-20 04:05:01.000000000 -0500
@@ -769,11 +769,11 @@ static int dlfb_get_edid(struct dlfb_dat
 
 	for (i = 0; i < len; i++) {
 		ret = usb_control_msg(dev->udev,
-				    usb_rcvctrlpipe(dev->udev, 0), (0x02),
-				    (0x80 | (0x02 << 5)), i << 8, 0xA1, rbuf, 2,
-				    HZ);
-		if (ret < 1) {
-			pr_err("Read EDID byte %d failed err %x\n", i, ret);
+				      usb_rcvctrlpipe(dev->udev, 0), 0x02,
+				      (0x80 | (0x02 << 5)), i << 8, 0xA1,
+				      rbuf, 2, USB_CTRL_GET_TIMEOUT);
+		if (ret < 2) {
+			pr_err("Read EDID byte %d failed: %d\n", i, ret);
 			i--;
 			break;
 		}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/video/fbdev/xen-fbfront.c linux-libre-4.4.107-gnu/drivers/video/fbdev/xen-fbfront.c
--- linux-libre-4.4-gnu/drivers/video/fbdev/xen-fbfront.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/video/fbdev/xen-fbfront.c	2017-12-20 04:05:01.000000000 -0500
@@ -644,7 +644,6 @@ static void xenfb_backend_changed(struct
 		break;
 
 	case XenbusStateInitWait:
-InitWait:
 		xenbus_switch_state(dev, XenbusStateConnected);
 		break;
 
@@ -655,7 +654,8 @@ InitWait:
 		 * get Connected twice here.
 		 */
 		if (dev->state != XenbusStateConnected)
-			goto InitWait; /* no InitWait seen yet, fudge it */
+			/* no InitWait seen yet, fudge it */
+			xenbus_switch_state(dev, XenbusStateConnected);
 
 		if (xenbus_scanf(XBT_NIL, info->xbdev->otherend,
 				 "request-update", "%d", &val) < 0)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/virtio/virtio_balloon.c linux-libre-4.4.107-gnu/drivers/virtio/virtio_balloon.c
--- linux-libre-4.4-gnu/drivers/virtio/virtio_balloon.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/virtio/virtio_balloon.c	2017-12-20 04:05:01.000000000 -0500
@@ -73,7 +73,7 @@ struct virtio_balloon {
 
 	/* The array of pfns we tell the Host about. */
 	unsigned int num_pfns;
-	u32 pfns[VIRTIO_BALLOON_ARRAY_PFNS_MAX];
+	__virtio32 pfns[VIRTIO_BALLOON_ARRAY_PFNS_MAX];
 
 	/* Memory statistics */
 	int need_stats_update;
@@ -125,14 +125,16 @@ static void tell_host(struct virtio_ball
 	wait_event(vb->acked, virtqueue_get_buf(vq, &len));
 }
 
-static void set_page_pfns(u32 pfns[], struct page *page)
+static void set_page_pfns(struct virtio_balloon *vb,
+			  __virtio32 pfns[], struct page *page)
 {
 	unsigned int i;
 
 	/* Set balloon pfns pointing at this page.
 	 * Note that the first pfn points at start of the page. */
 	for (i = 0; i < VIRTIO_BALLOON_PAGES_PER_PAGE; i++)
-		pfns[i] = page_to_balloon_pfn(page) + i;
+		pfns[i] = cpu_to_virtio32(vb->vdev,
+					  page_to_balloon_pfn(page) + i);
 }
 
 static void fill_balloon(struct virtio_balloon *vb, size_t num)
@@ -155,7 +157,7 @@ static void fill_balloon(struct virtio_b
 			msleep(200);
 			break;
 		}
-		set_page_pfns(vb->pfns + vb->num_pfns, page);
+		set_page_pfns(vb, vb->pfns + vb->num_pfns, page);
 		vb->num_pages += VIRTIO_BALLOON_PAGES_PER_PAGE;
 		if (!virtio_has_feature(vb->vdev,
 					VIRTIO_BALLOON_F_DEFLATE_ON_OOM))
@@ -171,10 +173,12 @@ static void fill_balloon(struct virtio_b
 static void release_pages_balloon(struct virtio_balloon *vb)
 {
 	unsigned int i;
+	struct page *page;
 
 	/* Find pfns pointing at start of each page, get pages and free them. */
 	for (i = 0; i < vb->num_pfns; i += VIRTIO_BALLOON_PAGES_PER_PAGE) {
-		struct page *page = balloon_pfn_to_page(vb->pfns[i]);
+		page = balloon_pfn_to_page(virtio32_to_cpu(vb->vdev,
+							   vb->pfns[i]));
 		if (!virtio_has_feature(vb->vdev,
 					VIRTIO_BALLOON_F_DEFLATE_ON_OOM))
 			adjust_managed_page_count(page, 1);
@@ -192,12 +196,14 @@ static unsigned leak_balloon(struct virt
 	num = min(num, ARRAY_SIZE(vb->pfns));
 
 	mutex_lock(&vb->balloon_lock);
+	/* We can't release more pages than taken */
+	num = min(num, (size_t)vb->num_pages);
 	for (vb->num_pfns = 0; vb->num_pfns < num;
 	     vb->num_pfns += VIRTIO_BALLOON_PAGES_PER_PAGE) {
 		page = balloon_page_dequeue(vb_dev_info);
 		if (!page)
 			break;
-		set_page_pfns(vb->pfns + vb->num_pfns, page);
+		set_page_pfns(vb, vb->pfns + vb->num_pfns, page);
 		vb->num_pages -= VIRTIO_BALLOON_PAGES_PER_PAGE;
 	}
 
@@ -209,8 +215,8 @@ static unsigned leak_balloon(struct virt
 	 */
 	if (vb->num_pfns != 0)
 		tell_host(vb, vb->deflate_vq);
-	mutex_unlock(&vb->balloon_lock);
 	release_pages_balloon(vb);
+	mutex_unlock(&vb->balloon_lock);
 	return num_freed_pages;
 }
 
@@ -410,6 +416,8 @@ static int init_vqs(struct virtio_balloo
 		 * Prime this virtqueue with one buffer so the hypervisor can
 		 * use it to signal us later (it can't be broken yet!).
 		 */
+		update_balloon_stats(vb);
+
 		sg_init_one(&sg, vb->stats, sizeof vb->stats);
 		if (virtqueue_add_outbuf(vb->stats_vq, &sg, 1, vb, GFP_KERNEL)
 		    < 0)
@@ -465,13 +473,13 @@ static int virtballoon_migratepage(struc
 	__count_vm_event(BALLOON_MIGRATE);
 	spin_unlock_irqrestore(&vb_dev_info->pages_lock, flags);
 	vb->num_pfns = VIRTIO_BALLOON_PAGES_PER_PAGE;
-	set_page_pfns(vb->pfns, newpage);
+	set_page_pfns(vb, vb->pfns, newpage);
 	tell_host(vb, vb->inflate_vq);
 
 	/* balloon's page migration 2nd step -- deflate "page" */
 	balloon_page_delete(page);
 	vb->num_pfns = VIRTIO_BALLOON_PAGES_PER_PAGE;
-	set_page_pfns(vb->pfns, page);
+	set_page_pfns(vb, vb->pfns, page);
 	tell_host(vb, vb->deflate_vq);
 
 	mutex_unlock(&vb->balloon_lock);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/virtio/virtio.c linux-libre-4.4.107-gnu/drivers/virtio/virtio.c
--- linux-libre-4.4-gnu/drivers/virtio/virtio.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/virtio/virtio.c	2017-12-20 04:05:01.000000000 -0500
@@ -323,6 +323,8 @@ int register_virtio_device(struct virtio
 	/* device_register() causes the bus infrastructure to look for a
 	 * matching driver. */
 	err = device_register(&dev->dev);
+	if (err)
+		ida_simple_remove(&virtio_index_ida, dev->index);
 out:
 	if (err)
 		add_status(dev, VIRTIO_CONFIG_S_FAILED);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/virtio/virtio_pci_common.c linux-libre-4.4.107-gnu/drivers/virtio/virtio_pci_common.c
--- linux-libre-4.4-gnu/drivers/virtio/virtio_pci_common.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/virtio/virtio_pci_common.c	2017-12-20 04:05:01.000000000 -0500
@@ -545,6 +545,7 @@ err_enable_device:
 static void virtio_pci_remove(struct pci_dev *pci_dev)
 {
 	struct virtio_pci_device *vp_dev = pci_get_drvdata(pci_dev);
+	struct device *dev = get_device(&vp_dev->vdev.dev);
 
 	unregister_virtio_device(&vp_dev->vdev);
 
@@ -554,6 +555,7 @@ static void virtio_pci_remove(struct pci
 		virtio_pci_modern_remove(vp_dev);
 
 	pci_disable_device(pci_dev);
+	put_device(dev);
 }
 
 static struct pci_driver virtio_pci_driver = {
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/virtio/virtio_pci_modern.c linux-libre-4.4.107-gnu/drivers/virtio/virtio_pci_modern.c
--- linux-libre-4.4-gnu/drivers/virtio/virtio_pci_modern.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/virtio/virtio_pci_modern.c	2017-12-20 04:05:01.000000000 -0500
@@ -17,6 +17,7 @@
  *
  */
 
+#include <linux/delay.h>
 #define VIRTIO_PCI_NO_LEGACY
 #include "virtio_pci_common.h"
 
@@ -271,9 +272,13 @@ static void vp_reset(struct virtio_devic
 	struct virtio_pci_device *vp_dev = to_vp_device(vdev);
 	/* 0 status means a reset. */
 	vp_iowrite8(0, &vp_dev->common->device_status);
-	/* Flush out the status write, and flush in device writes,
-	 * including MSI-X interrupts, if any. */
-	vp_ioread8(&vp_dev->common->device_status);
+	/* After writing 0 to device_status, the driver MUST wait for a read of
+	 * device_status to return 0 before reinitializing the device.
+	 * This will flush out the status write, and flush in device writes,
+	 * including MSI-X interrupts, if any.
+	 */
+	while (vp_ioread8(&vp_dev->common->device_status))
+		msleep(1);
 	/* Flush pending VQ/configuration callbacks. */
 	vp_synchronize_vectors(vdev);
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/virtio/virtio_ring.c linux-libre-4.4.107-gnu/drivers/virtio/virtio_ring.c
--- linux-libre-4.4-gnu/drivers/virtio/virtio_ring.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/virtio/virtio_ring.c	2017-12-20 04:05:01.000000000 -0500
@@ -202,6 +202,8 @@ static inline int virtqueue_add(struct v
 		 * host should service the ring ASAP. */
 		if (out_sgs)
 			vq->notify(&vq->vq);
+		if (indirect)
+			kfree(desc);
 		END_USE(vq);
 		return -ENOSPC;
 	}
@@ -546,7 +548,8 @@ void virtqueue_disable_cb(struct virtque
 
 	if (!(vq->avail_flags_shadow & VRING_AVAIL_F_NO_INTERRUPT)) {
 		vq->avail_flags_shadow |= VRING_AVAIL_F_NO_INTERRUPT;
-		vq->vring.avail->flags = cpu_to_virtio16(_vq->vdev, vq->avail_flags_shadow);
+		if (!vq->event)
+			vq->vring.avail->flags = cpu_to_virtio16(_vq->vdev, vq->avail_flags_shadow);
 	}
 
 }
@@ -578,7 +581,8 @@ unsigned virtqueue_enable_cb_prepare(str
 	 * entry. Always do both to keep code simple. */
 	if (vq->avail_flags_shadow & VRING_AVAIL_F_NO_INTERRUPT) {
 		vq->avail_flags_shadow &= ~VRING_AVAIL_F_NO_INTERRUPT;
-		vq->vring.avail->flags = cpu_to_virtio16(_vq->vdev, vq->avail_flags_shadow);
+		if (!vq->event)
+			vq->vring.avail->flags = cpu_to_virtio16(_vq->vdev, vq->avail_flags_shadow);
 	}
 	vring_used_event(&vq->vring) = cpu_to_virtio16(_vq->vdev, last_used_idx = vq->last_used_idx);
 	END_USE(vq);
@@ -646,10 +650,11 @@ bool virtqueue_enable_cb_delayed(struct
 	 * more to do. */
 	/* Depending on the VIRTIO_RING_F_USED_EVENT_IDX feature, we need to
 	 * either clear the flags bit or point the event index at the next
-	 * entry. Always do both to keep code simple. */
+	 * entry. Always update the event index to keep code simple. */
 	if (vq->avail_flags_shadow & VRING_AVAIL_F_NO_INTERRUPT) {
 		vq->avail_flags_shadow &= ~VRING_AVAIL_F_NO_INTERRUPT;
-		vq->vring.avail->flags = cpu_to_virtio16(_vq->vdev, vq->avail_flags_shadow);
+		if (!vq->event)
+			vq->vring.avail->flags = cpu_to_virtio16(_vq->vdev, vq->avail_flags_shadow);
 	}
 	/* TODO: tune this threshold */
 	bufs = (u16)(vq->avail_idx_shadow - vq->last_used_idx) * 3 / 4;
@@ -768,7 +773,8 @@ struct virtqueue *vring_new_virtqueue(un
 	/* No callback?  Tell other side not to bother us. */
 	if (!callback) {
 		vq->avail_flags_shadow |= VRING_AVAIL_F_NO_INTERRUPT;
-		vq->vring.avail->flags = cpu_to_virtio16(vdev, vq->avail_flags_shadow);
+		if (!vq->event)
+			vq->vring.avail->flags = cpu_to_virtio16(vdev, vq->avail_flags_shadow);
 	}
 
 	/* Put everything in free lists. */
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/vme/bridges/vme_ca91cx42.c linux-libre-4.4.107-gnu/drivers/vme/bridges/vme_ca91cx42.c
--- linux-libre-4.4-gnu/drivers/vme/bridges/vme_ca91cx42.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/vme/bridges/vme_ca91cx42.c	2017-12-20 04:05:01.000000000 -0500
@@ -467,7 +467,7 @@ static int ca91cx42_slave_get(struct vme
 	vme_bound = ioread32(bridge->base + CA91CX42_VSI_BD[i]);
 	pci_offset = ioread32(bridge->base + CA91CX42_VSI_TO[i]);
 
-	*pci_base = (dma_addr_t)vme_base + pci_offset;
+	*pci_base = (dma_addr_t)*vme_base + pci_offset;
 	*size = (unsigned long long)((vme_bound - *vme_base) + granularity);
 
 	*enabled = 0;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/w1/masters/ds2490.c linux-libre-4.4.107-gnu/drivers/w1/masters/ds2490.c
--- linux-libre-4.4-gnu/drivers/w1/masters/ds2490.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/w1/masters/ds2490.c	2017-12-20 04:05:01.000000000 -0500
@@ -153,6 +153,9 @@ struct ds_device
 	 */
 	u16			spu_bit;
 
+	u8			st_buf[ST_SIZE];
+	u8			byte_buf;
+
 	struct w1_bus_master	master;
 };
 
@@ -174,7 +177,6 @@ struct ds_status
 	u8			data_in_buffer_status;
 	u8			reserved1;
 	u8			reserved2;
-
 };
 
 static struct usb_device_id ds_id_table [] = {
@@ -244,28 +246,6 @@ static int ds_send_control(struct ds_dev
 	return err;
 }
 
-static int ds_recv_status_nodump(struct ds_device *dev, struct ds_status *st,
-				 unsigned char *buf, int size)
-{
-	int count, err;
-
-	memset(st, 0, sizeof(*st));
-
-	count = 0;
-	err = usb_interrupt_msg(dev->udev, usb_rcvintpipe(dev->udev,
-		dev->ep[EP_STATUS]), buf, size, &count, 1000);
-	if (err < 0) {
-		pr_err("Failed to read 1-wire data from 0x%x: err=%d.\n",
-		       dev->ep[EP_STATUS], err);
-		return err;
-	}
-
-	if (count >= sizeof(*st))
-		memcpy(st, buf, sizeof(*st));
-
-	return count;
-}
-
 static inline void ds_print_msg(unsigned char *buf, unsigned char *str, int off)
 {
 	pr_info("%45s: %8x\n", str, buf[off]);
@@ -324,6 +304,35 @@ static void ds_dump_status(struct ds_dev
 	}
 }
 
+static int ds_recv_status(struct ds_device *dev, struct ds_status *st,
+			  bool dump)
+{
+	int count, err;
+
+	if (st)
+		memset(st, 0, sizeof(*st));
+
+	count = 0;
+	err = usb_interrupt_msg(dev->udev,
+				usb_rcvintpipe(dev->udev,
+					       dev->ep[EP_STATUS]),
+				dev->st_buf, sizeof(dev->st_buf),
+				&count, 1000);
+	if (err < 0) {
+		pr_err("Failed to read 1-wire data from 0x%x: err=%d.\n",
+		       dev->ep[EP_STATUS], err);
+		return err;
+	}
+
+	if (dump)
+		ds_dump_status(dev, dev->st_buf, count);
+
+	if (st && count >= sizeof(*st))
+		memcpy(st, dev->st_buf, sizeof(*st));
+
+	return count;
+}
+
 static void ds_reset_device(struct ds_device *dev)
 {
 	ds_send_control_cmd(dev, CTL_RESET_DEVICE, 0);
@@ -344,7 +353,6 @@ static void ds_reset_device(struct ds_de
 static int ds_recv_data(struct ds_device *dev, unsigned char *buf, int size)
 {
 	int count, err;
-	struct ds_status st;
 
 	/* Careful on size.  If size is less than what is available in
 	 * the input buffer, the device fails the bulk transfer and
@@ -359,14 +367,9 @@ static int ds_recv_data(struct ds_device
 	err = usb_bulk_msg(dev->udev, usb_rcvbulkpipe(dev->udev, dev->ep[EP_DATA_IN]),
 				buf, size, &count, 1000);
 	if (err < 0) {
-		u8 buf[ST_SIZE];
-		int count;
-
 		pr_info("Clearing ep0x%x.\n", dev->ep[EP_DATA_IN]);
 		usb_clear_halt(dev->udev, usb_rcvbulkpipe(dev->udev, dev->ep[EP_DATA_IN]));
-
-		count = ds_recv_status_nodump(dev, &st, buf, sizeof(buf));
-		ds_dump_status(dev, buf, count);
+		ds_recv_status(dev, NULL, true);
 		return err;
 	}
 
@@ -404,7 +407,6 @@ int ds_stop_pulse(struct ds_device *dev,
 {
 	struct ds_status st;
 	int count = 0, err = 0;
-	u8 buf[ST_SIZE];
 
 	do {
 		err = ds_send_control(dev, CTL_HALT_EXE_IDLE, 0);
@@ -413,7 +415,7 @@ int ds_stop_pulse(struct ds_device *dev,
 		err = ds_send_control(dev, CTL_RESUME_EXE, 0);
 		if (err)
 			break;
-		err = ds_recv_status_nodump(dev, &st, buf, sizeof(buf));
+		err = ds_recv_status(dev, &st, false);
 		if (err)
 			break;
 
@@ -456,18 +458,17 @@ int ds_detect(struct ds_device *dev, str
 
 static int ds_wait_status(struct ds_device *dev, struct ds_status *st)
 {
-	u8 buf[ST_SIZE];
 	int err, count = 0;
 
 	do {
 		st->status = 0;
-		err = ds_recv_status_nodump(dev, st, buf, sizeof(buf));
+		err = ds_recv_status(dev, st, false);
 #if 0
 		if (err >= 0) {
 			int i;
 			printk("0x%x: count=%d, status: ", dev->ep[EP_STATUS], err);
 			for (i=0; i<err; ++i)
-				printk("%02x ", buf[i]);
+				printk("%02x ", dev->st_buf[i]);
 			printk("\n");
 		}
 #endif
@@ -485,7 +486,7 @@ static int ds_wait_status(struct ds_devi
 	 * can do something with it).
 	 */
 	if (err > 16 || count >= 100 || err < 0)
-		ds_dump_status(dev, buf, err);
+		ds_dump_status(dev, dev->st_buf, err);
 
 	/* Extended data isn't an error.  Well, a short is, but the dump
 	 * would have already told the user that and we can't do anything
@@ -608,7 +609,6 @@ static int ds_write_byte(struct ds_devic
 {
 	int err;
 	struct ds_status st;
-	u8 rbyte;
 
 	err = ds_send_control(dev, COMM_BYTE_IO | COMM_IM | dev->spu_bit, byte);
 	if (err)
@@ -621,11 +621,11 @@ static int ds_write_byte(struct ds_devic
 	if (err)
 		return err;
 
-	err = ds_recv_data(dev, &rbyte, sizeof(rbyte));
+	err = ds_recv_data(dev, &dev->byte_buf, 1);
 	if (err < 0)
 		return err;
 
-	return !(byte == rbyte);
+	return !(byte == dev->byte_buf);
 }
 
 static int ds_read_byte(struct ds_device *dev, u8 *byte)
@@ -712,7 +712,6 @@ static void ds9490r_search(void *data, s
 	int err;
 	u16 value, index;
 	struct ds_status st;
-	u8 st_buf[ST_SIZE];
 	int search_limit;
 	int found = 0;
 	int i;
@@ -724,7 +723,12 @@ static void ds9490r_search(void *data, s
 	/* FIFO 128 bytes, bulk packet size 64, read a multiple of the
 	 * packet size.
 	 */
-	u64 buf[2*64/8];
+	const size_t bufsize = 2 * 64;
+	u64 *buf;
+
+	buf = kmalloc(bufsize, GFP_KERNEL);
+	if (!buf)
+		return;
 
 	mutex_lock(&master->bus_mutex);
 
@@ -745,10 +749,9 @@ static void ds9490r_search(void *data, s
 	do {
 		schedule_timeout(jtime);
 
-		if (ds_recv_status_nodump(dev, &st, st_buf, sizeof(st_buf)) <
-			sizeof(st)) {
+		err = ds_recv_status(dev, &st, false);
+		if (err < 0 || err < sizeof(st))
 			break;
-		}
 
 		if (st.data_in_buffer_status) {
 			/* Bulk in can receive partial ids, but when it does
@@ -758,7 +761,7 @@ static void ds9490r_search(void *data, s
 			 * bulk without first checking if status says there
 			 * is data to read.
 			 */
-			err = ds_recv_data(dev, (u8 *)buf, sizeof(buf));
+			err = ds_recv_data(dev, (u8 *)buf, bufsize);
 			if (err < 0)
 				break;
 			for (i = 0; i < err/8; ++i) {
@@ -794,9 +797,14 @@ static void ds9490r_search(void *data, s
 	}
 search_out:
 	mutex_unlock(&master->bus_mutex);
+	kfree(buf);
 }
 
 #if 0
+/*
+ * FIXME: if this disabled code is ever used in the future all ds_send_data()
+ * calls must be changed to use a DMAable buffer.
+ */
 static int ds_match_access(struct ds_device *dev, u64 init)
 {
 	int err;
@@ -845,13 +853,12 @@ static int ds_set_path(struct ds_device
 
 static u8 ds9490r_touch_bit(void *data, u8 bit)
 {
-	u8 ret;
 	struct ds_device *dev = data;
 
-	if (ds_touch_bit(dev, bit, &ret))
+	if (ds_touch_bit(dev, bit, &dev->byte_buf))
 		return 0;
 
-	return ret;
+	return dev->byte_buf;
 }
 
 #if 0
@@ -866,13 +873,12 @@ static u8 ds9490r_read_bit(void *data)
 {
 	struct ds_device *dev = data;
 	int err;
-	u8 bit = 0;
 
-	err = ds_touch_bit(dev, 1, &bit);
+	err = ds_touch_bit(dev, 1, &dev->byte_buf);
 	if (err)
 		return 0;
 
-	return bit & 1;
+	return dev->byte_buf & 1;
 }
 #endif
 
@@ -887,32 +893,52 @@ static u8 ds9490r_read_byte(void *data)
 {
 	struct ds_device *dev = data;
 	int err;
-	u8 byte = 0;
 
-	err = ds_read_byte(dev, &byte);
+	err = ds_read_byte(dev, &dev->byte_buf);
 	if (err)
 		return 0;
 
-	return byte;
+	return dev->byte_buf;
 }
 
 static void ds9490r_write_block(void *data, const u8 *buf, int len)
 {
 	struct ds_device *dev = data;
+	u8 *tbuf;
 
-	ds_write_block(dev, (u8 *)buf, len);
+	if (len <= 0)
+		return;
+
+	tbuf = kmalloc(len, GFP_KERNEL);
+	if (!tbuf)
+		return;
+
+	memcpy(tbuf, buf, len);
+	ds_write_block(dev, tbuf, len);
+
+	kfree(tbuf);
 }
 
 static u8 ds9490r_read_block(void *data, u8 *buf, int len)
 {
 	struct ds_device *dev = data;
 	int err;
+	u8 *tbuf;
 
-	err = ds_read_block(dev, buf, len);
-	if (err < 0)
+	if (len <= 0)
 		return 0;
 
-	return len;
+	tbuf = kmalloc(len, GFP_KERNEL);
+	if (!tbuf)
+		return 0;
+
+	err = ds_read_block(dev, tbuf, len);
+	if (err >= 0)
+		memcpy(buf, tbuf, len);
+
+	kfree(tbuf);
+
+	return err >= 0 ? len : 0;
 }
 
 static u8 ds9490r_reset(void *data)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/w1/masters/omap_hdq.c linux-libre-4.4.107-gnu/drivers/w1/masters/omap_hdq.c
--- linux-libre-4.4-gnu/drivers/w1/masters/omap_hdq.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/w1/masters/omap_hdq.c	2017-12-20 04:05:01.000000000 -0500
@@ -390,8 +390,6 @@ static int hdq_read_byte(struct hdq_data
 		goto out;
 	}
 
-	hdq_data->hdq_irqstatus = 0;
-
 	if (!(hdq_data->hdq_irqstatus & OMAP_HDQ_INT_STATUS_RXCOMPLETE)) {
 		hdq_reg_merge(hdq_data, OMAP_HDQ_CTRL_STATUS,
 			OMAP_HDQ_CTRL_STATUS_DIR | OMAP_HDQ_CTRL_STATUS_GO,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/w1/w1.c linux-libre-4.4.107-gnu/drivers/w1/w1.c
--- linux-libre-4.4-gnu/drivers/w1/w1.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/w1/w1.c	2017-12-20 04:05:01.000000000 -0500
@@ -763,6 +763,7 @@ int w1_attach_slave_device(struct w1_mas
 		dev_err(&dev->dev, "%s: Attaching %s failed.\n", __func__,
 			 sl->name);
 		w1_family_put(sl->family);
+		atomic_dec(&sl->master->refcnt);
 		kfree(sl);
 		return err;
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/watchdog/bcm_kona_wdt.c linux-libre-4.4.107-gnu/drivers/watchdog/bcm_kona_wdt.c
--- linux-libre-4.4-gnu/drivers/watchdog/bcm_kona_wdt.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/watchdog/bcm_kona_wdt.c	2017-12-20 04:05:01.000000000 -0500
@@ -304,6 +304,8 @@ static int bcm_kona_wdt_probe(struct pla
 	if (!wdt)
 		return -ENOMEM;
 
+	spin_lock_init(&wdt->lock);
+
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	wdt->base = devm_ioremap_resource(dev, res);
 	if (IS_ERR(wdt->base))
@@ -316,7 +318,6 @@ static int bcm_kona_wdt_probe(struct pla
 		return ret;
 	}
 
-	spin_lock_init(&wdt->lock);
 	platform_set_drvdata(pdev, wdt);
 	watchdog_set_drvdata(&bcm_kona_wdt_wdd, wdt);
 	bcm_kona_wdt_wdd.parent = &pdev->dev;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/watchdog/kempld_wdt.c linux-libre-4.4.107-gnu/drivers/watchdog/kempld_wdt.c
--- linux-libre-4.4-gnu/drivers/watchdog/kempld_wdt.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/watchdog/kempld_wdt.c	2017-12-20 04:05:01.000000000 -0500
@@ -140,12 +140,19 @@ static int kempld_wdt_set_stage_timeout(
 					unsigned int timeout)
 {
 	struct kempld_device_data *pld = wdt_data->pld;
-	u32 prescaler = kempld_prescaler[PRESCALER_21];
+	u32 prescaler;
 	u64 stage_timeout64;
 	u32 stage_timeout;
 	u32 remainder;
 	u8 stage_cfg;
 
+#if GCC_VERSION < 40400
+	/* work around a bug compiling do_div() */
+	prescaler = READ_ONCE(kempld_prescaler[PRESCALER_21]);
+#else
+	prescaler = kempld_prescaler[PRESCALER_21];
+#endif
+
 	if (!stage)
 		return -EINVAL;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/watchdog/pcwd_usb.c linux-libre-4.4.107-gnu/drivers/watchdog/pcwd_usb.c
--- linux-libre-4.4-gnu/drivers/watchdog/pcwd_usb.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/watchdog/pcwd_usb.c	2017-12-20 04:05:01.000000000 -0500
@@ -630,6 +630,9 @@ static int usb_pcwd_probe(struct usb_int
 		return -ENODEV;
 	}
 
+	if (iface_desc->desc.bNumEndpoints < 1)
+		return -ENODEV;
+
 	/* check out the endpoint: it has to be Interrupt & IN */
 	endpoint = &iface_desc->endpoint[0].desc;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/watchdog/rc32434_wdt.c linux-libre-4.4.107-gnu/drivers/watchdog/rc32434_wdt.c
--- linux-libre-4.4-gnu/drivers/watchdog/rc32434_wdt.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/watchdog/rc32434_wdt.c	2017-12-20 04:05:01.000000000 -0500
@@ -237,7 +237,7 @@ static long rc32434_wdt_ioctl(struct fil
 			return -EINVAL;
 		/* Fall through */
 	case WDIOC_GETTIMEOUT:
-		return copy_to_user(argp, &timeout, sizeof(int));
+		return copy_to_user(argp, &timeout, sizeof(int)) ? -EFAULT : 0;
 	default:
 		return -ENOTTY;
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/xen/balloon.c linux-libre-4.4.107-gnu/drivers/xen/balloon.c
--- linux-libre-4.4-gnu/drivers/xen/balloon.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/xen/balloon.c	2017-12-20 04:05:01.000000000 -0500
@@ -247,6 +247,19 @@ static enum bp_state update_schedule(enu
 }
 
 #ifdef CONFIG_XEN_BALLOON_MEMORY_HOTPLUG
+static void release_memory_resource(struct resource *resource)
+{
+	if (!resource)
+		return;
+
+	/*
+	 * No need to reset region to identity mapped since we now
+	 * know that no I/O can be in this region
+	 */
+	release_resource(resource);
+	kfree(resource);
+}
+
 static struct resource *additional_memory_resource(phys_addr_t size)
 {
 	struct resource *res;
@@ -268,20 +281,21 @@ static struct resource *additional_memor
 		return NULL;
 	}
 
-	return res;
-}
+#ifdef CONFIG_SPARSEMEM
+	{
+		unsigned long limit = 1UL << (MAX_PHYSMEM_BITS - PAGE_SHIFT);
+		unsigned long pfn = res->start >> PAGE_SHIFT;
 
-static void release_memory_resource(struct resource *resource)
-{
-	if (!resource)
-		return;
+		if (pfn > limit) {
+			pr_err("New System RAM resource outside addressable RAM (%lu > %lu)\n",
+			       pfn, limit);
+			release_memory_resource(res);
+			return NULL;
+		}
+	}
+#endif
 
-	/*
-	 * No need to reset region to identity mapped since we now
-	 * know that no I/O can be in this region
-	 */
-	release_resource(resource);
-	kfree(resource);
+	return res;
 }
 
 static enum bp_state reserve_additional_memory(void)
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/xen/biomerge.c linux-libre-4.4.107-gnu/drivers/xen/biomerge.c
--- linux-libre-4.4-gnu/drivers/xen/biomerge.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/xen/biomerge.c	2017-12-20 04:05:01.000000000 -0500
@@ -10,8 +10,7 @@ bool xen_biovec_phys_mergeable(const str
 	unsigned long bfn1 = pfn_to_bfn(page_to_pfn(vec1->bv_page));
 	unsigned long bfn2 = pfn_to_bfn(page_to_pfn(vec2->bv_page));
 
-	return __BIOVEC_PHYS_MERGEABLE(vec1, vec2) &&
-		((bfn1 == bfn2) || ((bfn1+1) == bfn2));
+	return bfn1 + PFN_DOWN(vec1->bv_offset + vec1->bv_len) == bfn2;
 #else
 	/*
 	 * XXX: Add support for merging bio_vec when using different page
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/xen/events/events_base.c linux-libre-4.4.107-gnu/drivers/xen/events/events_base.c
--- linux-libre-4.4-gnu/drivers/xen/events/events_base.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/xen/events/events_base.c	2017-12-20 04:05:01.000000000 -0500
@@ -484,9 +484,20 @@ static void eoi_pirq(struct irq_data *da
 	struct physdev_eoi eoi = { .irq = pirq_from_irq(data->irq) };
 	int rc = 0;
 
-	irq_move_irq(data);
+	if (!VALID_EVTCHN(evtchn))
+		return;
 
-	if (VALID_EVTCHN(evtchn))
+	if (unlikely(irqd_is_setaffinity_pending(data)) &&
+	    likely(!irqd_irq_disabled(data))) {
+		int masked = test_and_set_mask(evtchn);
+
+		clear_evtchn(evtchn);
+
+		irq_move_masked_irq(data);
+
+		if (!masked)
+			unmask_evtchn(evtchn);
+	} else
 		clear_evtchn(evtchn);
 
 	if (pirq_needs_eoi(data->irq)) {
@@ -1357,9 +1368,20 @@ static void ack_dynirq(struct irq_data *
 {
 	int evtchn = evtchn_from_irq(data->irq);
 
-	irq_move_irq(data);
+	if (!VALID_EVTCHN(evtchn))
+		return;
 
-	if (VALID_EVTCHN(evtchn))
+	if (unlikely(irqd_is_setaffinity_pending(data)) &&
+	    likely(!irqd_irq_disabled(data))) {
+		int masked = test_and_set_mask(evtchn);
+
+		clear_evtchn(evtchn);
+
+		irq_move_masked_irq(data);
+
+		if (!masked)
+			unmask_evtchn(evtchn);
+	} else
 		clear_evtchn(evtchn);
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/xen/evtchn.c linux-libre-4.4.107-gnu/drivers/xen/evtchn.c
--- linux-libre-4.4-gnu/drivers/xen/evtchn.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/xen/evtchn.c	2017-12-20 04:05:01.000000000 -0500
@@ -316,7 +316,6 @@ static int evtchn_resize_ring(struct per
 {
 	unsigned int new_size;
 	evtchn_port_t *new_ring, *old_ring;
-	unsigned int p, c;
 
 	/*
 	 * Ensure the ring is large enough to capture all possible
@@ -346,20 +345,17 @@ static int evtchn_resize_ring(struct per
 	/*
 	 * Copy the old ring contents to the new ring.
 	 *
-	 * If the ring contents crosses the end of the current ring,
-	 * it needs to be copied in two chunks.
+	 * To take care of wrapping, a full ring, and the new index
+	 * pointing into the second half, simply copy the old contents
+	 * twice.
 	 *
 	 * +---------+    +------------------+
-	 * |34567  12| -> |       1234567    |
-	 * +-----p-c-+    +------------------+
+	 * |34567  12| -> |34567  1234567  12|
+	 * +-----p-c-+    +-------c------p---+
 	 */
-	p = evtchn_ring_offset(u, u->ring_prod);
-	c = evtchn_ring_offset(u, u->ring_cons);
-	if (p < c) {
-		memcpy(new_ring + c, u->ring + c, (u->ring_size - c) * sizeof(*u->ring));
-		memcpy(new_ring + u->ring_size, u->ring, p * sizeof(*u->ring));
-	} else
-		memcpy(new_ring + c, u->ring + c, (p - c) * sizeof(*u->ring));
+	memcpy(new_ring, old_ring, u->ring_size * sizeof(*u->ring));
+	memcpy(new_ring + u->ring_size, old_ring,
+	       u->ring_size * sizeof(*u->ring));
 
 	u->ring = new_ring;
 	u->ring_size = new_size;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/xen/gntdev.c linux-libre-4.4.107-gnu/drivers/xen/gntdev.c
--- linux-libre-4.4-gnu/drivers/xen/gntdev.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/xen/gntdev.c	2017-12-20 04:05:01.000000000 -0500
@@ -804,7 +804,7 @@ static int gntdev_mmap(struct file *flip
 
 	vma->vm_ops = &gntdev_vmops;
 
-	vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP | VM_IO;
+	vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP | VM_MIXEDMAP;
 
 	if (use_ptemod)
 		vma->vm_flags |= VM_DONTCOPY;
@@ -827,6 +827,7 @@ static int gntdev_mmap(struct file *flip
 	mutex_unlock(&priv->lock);
 
 	if (use_ptemod) {
+		map->pages_vm_start = vma->vm_start;
 		err = apply_to_page_range(vma->vm_mm, vma->vm_start,
 					  vma->vm_end - vma->vm_start,
 					  find_grant_ptes, map);
@@ -864,7 +865,6 @@ static int gntdev_mmap(struct file *flip
 					    set_grant_ptes_as_special, NULL);
 		}
 #endif
-		map->pages_vm_start = vma->vm_start;
 	}
 
 	return 0;
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/xen/manage.c linux-libre-4.4.107-gnu/drivers/xen/manage.c
--- linux-libre-4.4-gnu/drivers/xen/manage.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/xen/manage.c	2017-12-20 04:05:01.000000000 -0500
@@ -275,8 +275,16 @@ static void sysrq_handler(struct xenbus_
 	err = xenbus_transaction_start(&xbt);
 	if (err)
 		return;
-	if (!xenbus_scanf(xbt, "control", "sysrq", "%c", &sysrq_key)) {
-		pr_err("Unable to read sysrq code in control/sysrq\n");
+	err = xenbus_scanf(xbt, "control", "sysrq", "%c", &sysrq_key);
+	if (err < 0) {
+		/*
+		 * The Xenstore watch fires directly after registering it and
+		 * after a suspend/resume cycle. So ENOENT is no error but
+		 * might happen in those cases.
+		 */
+		if (err != -ENOENT)
+			pr_err("Error %d reading sysrq code in control/sysrq\n",
+			       err);
 		xenbus_transaction_end(xbt, 1);
 		return;
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/xen/privcmd.c linux-libre-4.4.107-gnu/drivers/xen/privcmd.c
--- linux-libre-4.4-gnu/drivers/xen/privcmd.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/xen/privcmd.c	2017-12-20 04:05:01.000000000 -0500
@@ -335,8 +335,8 @@ static int mmap_batch_fn(void *data, int
 				st->global_error = 1;
 		}
 	}
-	st->va += PAGE_SIZE * nr;
-	st->index += nr;
+	st->va += XEN_PAGE_SIZE * nr;
+	st->index += nr / XEN_PFN_PER_PAGE;
 
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/xen/swiotlb-xen.c linux-libre-4.4.107-gnu/drivers/xen/swiotlb-xen.c
--- linux-libre-4.4-gnu/drivers/xen/swiotlb-xen.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/xen/swiotlb-xen.c	2017-12-20 04:05:01.000000000 -0500
@@ -409,9 +409,9 @@ dma_addr_t xen_swiotlb_map_page(struct d
 	if (map == SWIOTLB_MAP_ERROR)
 		return DMA_ERROR_CODE;
 
+	dev_addr = xen_phys_to_bus(map);
 	xen_dma_map_page(dev, pfn_to_page(map >> PAGE_SHIFT),
 					dev_addr, map & ~PAGE_MASK, size, dir, attrs);
-	dev_addr = xen_phys_to_bus(map);
 
 	/*
 	 * Ensure that the address returned is DMA'ble
@@ -567,13 +567,14 @@ xen_swiotlb_map_sg_attrs(struct device *
 				sg_dma_len(sgl) = 0;
 				return 0;
 			}
+			dev_addr = xen_phys_to_bus(map);
 			xen_dma_map_page(hwdev, pfn_to_page(map >> PAGE_SHIFT),
 						dev_addr,
 						map & ~PAGE_MASK,
 						sg->length,
 						dir,
 						attrs);
-			sg->dma_address = xen_phys_to_bus(map);
+			sg->dma_address = dev_addr;
 		} else {
 			/* we are not interested in the dma_addr returned by
 			 * xen_dma_map_page, only in the potential cache flushes executed
@@ -679,3 +680,22 @@ xen_swiotlb_set_dma_mask(struct device *
 	return 0;
 }
 EXPORT_SYMBOL_GPL(xen_swiotlb_set_dma_mask);
+
+/*
+ * Create userspace mapping for the DMA-coherent memory.
+ * This function should be called with the pages from the current domain only,
+ * passing pages mapped from other domains would lead to memory corruption.
+ */
+int
+xen_swiotlb_dma_mmap(struct device *dev, struct vm_area_struct *vma,
+		     void *cpu_addr, dma_addr_t dma_addr, size_t size,
+		     struct dma_attrs *attrs)
+{
+#if defined(CONFIG_ARM) || defined(CONFIG_ARM64)
+	if (__generic_dma_ops(dev)->mmap)
+		return __generic_dma_ops(dev)->mmap(dev, vma, cpu_addr,
+						    dma_addr, size, attrs);
+#endif
+	return dma_common_mmap(dev, vma, cpu_addr, dma_addr, size);
+}
+EXPORT_SYMBOL_GPL(xen_swiotlb_dma_mmap);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/xen/xen-acpi-processor.c linux-libre-4.4.107-gnu/drivers/xen/xen-acpi-processor.c
--- linux-libre-4.4-gnu/drivers/xen/xen-acpi-processor.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/xen/xen-acpi-processor.c	2017-12-20 04:05:01.000000000 -0500
@@ -27,10 +27,10 @@
 #include <linux/init.h>
 #include <linux/module.h>
 #include <linux/types.h>
+#include <linux/syscore_ops.h>
 #include <linux/acpi.h>
 #include <acpi/processor.h>
 #include <xen/xen.h>
-#include <xen/xen-ops.h>
 #include <xen/interface/platform.h>
 #include <asm/xen/hypercall.h>
 
@@ -423,36 +423,7 @@ upload:
 
 	return 0;
 }
-static int __init check_prereq(void)
-{
-	struct cpuinfo_x86 *c = &cpu_data(0);
-
-	if (!xen_initial_domain())
-		return -ENODEV;
-
-	if (!acpi_gbl_FADT.smi_command)
-		return -ENODEV;
 
-	if (c->x86_vendor == X86_VENDOR_INTEL) {
-		if (!cpu_has(c, X86_FEATURE_EST))
-			return -ENODEV;
-
-		return 0;
-	}
-	if (c->x86_vendor == X86_VENDOR_AMD) {
-		/* Copied from powernow-k8.h, can't include ../cpufreq/powernow
-		 * as we get compile warnings for the static functions.
-		 */
-#define CPUID_FREQ_VOLT_CAPABILITIES    0x80000007
-#define USE_HW_PSTATE                   0x00000080
-		u32 eax, ebx, ecx, edx;
-		cpuid(CPUID_FREQ_VOLT_CAPABILITIES, &eax, &ebx, &ecx, &edx);
-		if ((edx & USE_HW_PSTATE) != USE_HW_PSTATE)
-			return -ENODEV;
-		return 0;
-	}
-	return -ENODEV;
-}
 /* acpi_perf_data is a pointer to percpu data. */
 static struct acpi_processor_performance __percpu *acpi_perf_data;
 
@@ -495,24 +466,42 @@ static int xen_upload_processor_pm_data(
 	return rc;
 }
 
-static int xen_acpi_processor_resume(struct notifier_block *nb,
-				     unsigned long action, void *data)
+static void xen_acpi_processor_resume_worker(struct work_struct *dummy)
 {
+	int rc;
+
 	bitmap_zero(acpi_ids_done, nr_acpi_bits);
-	return xen_upload_processor_pm_data();
+
+	rc = xen_upload_processor_pm_data();
+	if (rc != 0)
+		pr_info("ACPI data upload failed, error = %d\n", rc);
 }
 
-struct notifier_block xen_acpi_processor_resume_nb = {
-	.notifier_call = xen_acpi_processor_resume,
+static void xen_acpi_processor_resume(void)
+{
+	static DECLARE_WORK(wq, xen_acpi_processor_resume_worker);
+
+	/*
+	 * xen_upload_processor_pm_data() calls non-atomic code.
+	 * However, the context for xen_acpi_processor_resume is syscore
+	 * with only the boot CPU online and in an atomic context.
+	 *
+	 * So defer the upload for some point safer.
+	 */
+	schedule_work(&wq);
+}
+
+static struct syscore_ops xap_syscore_ops = {
+	.resume	= xen_acpi_processor_resume,
 };
 
 static int __init xen_acpi_processor_init(void)
 {
 	unsigned int i;
-	int rc = check_prereq();
+	int rc;
 
-	if (rc)
-		return rc;
+	if (!xen_initial_domain())
+		return -ENODEV;
 
 	nr_acpi_bits = get_max_acpi_id() + 1;
 	acpi_ids_done = kcalloc(BITS_TO_LONGS(nr_acpi_bits), sizeof(unsigned long), GFP_KERNEL);
@@ -556,7 +545,7 @@ static int __init xen_acpi_processor_ini
 	if (rc)
 		goto err_unregister;
 
-	xen_resume_notifier_register(&xen_acpi_processor_resume_nb);
+	register_syscore_ops(&xap_syscore_ops);
 
 	return 0;
 err_unregister:
@@ -573,7 +562,7 @@ static void __exit xen_acpi_processor_ex
 {
 	int i;
 
-	xen_resume_notifier_unregister(&xen_acpi_processor_resume_nb);
+	unregister_syscore_ops(&xap_syscore_ops);
 	kfree(acpi_ids_done);
 	kfree(acpi_id_present);
 	kfree(acpi_id_cst_present);
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/xen/xenbus/xenbus_dev_frontend.c linux-libre-4.4.107-gnu/drivers/xen/xenbus/xenbus_dev_frontend.c
--- linux-libre-4.4-gnu/drivers/xen/xenbus/xenbus_dev_frontend.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/xen/xenbus/xenbus_dev_frontend.c	2017-12-20 04:05:01.000000000 -0500
@@ -316,11 +316,18 @@ static int xenbus_write_transaction(unsi
 			rc = -ENOMEM;
 			goto out;
 		}
+	} else if (u->u.msg.tx_id != 0) {
+		list_for_each_entry(trans, &u->transactions, list)
+			if (trans->handle.id == u->u.msg.tx_id)
+				break;
+		if (&trans->list == &u->transactions)
+			return -ESRCH;
 	}
 
 	reply = xenbus_dev_request_and_reply(&u->u.msg);
 	if (IS_ERR(reply)) {
-		kfree(trans);
+		if (msg_type == XS_TRANSACTION_START)
+			kfree(trans);
 		rc = PTR_ERR(reply);
 		goto out;
 	}
@@ -333,12 +340,7 @@ static int xenbus_write_transaction(unsi
 			list_add(&trans->list, &u->transactions);
 		}
 	} else if (u->u.msg.type == XS_TRANSACTION_END) {
-		list_for_each_entry(trans, &u->transactions, list)
-			if (trans->handle.id == u->u.msg.tx_id)
-				break;
-		BUG_ON(&trans->list == &u->transactions);
 		list_del(&trans->list);
-
 		kfree(trans);
 	}
 
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/xen/xenbus/xenbus_xs.c linux-libre-4.4.107-gnu/drivers/xen/xenbus/xenbus_xs.c
--- linux-libre-4.4-gnu/drivers/xen/xenbus/xenbus_xs.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/xen/xenbus/xenbus_xs.c	2017-12-20 04:05:01.000000000 -0500
@@ -250,9 +250,6 @@ void *xenbus_dev_request_and_reply(struc
 
 	mutex_unlock(&xs_state.request_mutex);
 
-	if (IS_ERR(ret))
-		return ret;
-
 	if ((msg->type == XS_TRANSACTION_END) ||
 	    ((req_msg.type == XS_TRANSACTION_START) &&
 	     (msg->type == XS_ERROR)))
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/xen/xen-pciback/conf_space.c linux-libre-4.4.107-gnu/drivers/xen/xen-pciback/conf_space.c
--- linux-libre-4.4-gnu/drivers/xen/xen-pciback/conf_space.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/xen/xen-pciback/conf_space.c	2017-12-20 04:05:01.000000000 -0500
@@ -183,8 +183,7 @@ int xen_pcibk_config_read(struct pci_dev
 		field_start = OFFSET(cfg_entry);
 		field_end = OFFSET(cfg_entry) + field->size;
 
-		if ((req_start >= field_start && req_start < field_end)
-		    || (req_end > field_start && req_end <= field_end)) {
+		 if (req_end > field_start && field_end > req_start) {
 			err = conf_space_read(dev, cfg_entry, field_start,
 					      &tmp_val);
 			if (err)
@@ -230,8 +229,7 @@ int xen_pcibk_config_write(struct pci_de
 		field_start = OFFSET(cfg_entry);
 		field_end = OFFSET(cfg_entry) + field->size;
 
-		if ((req_start >= field_start && req_start < field_end)
-		    || (req_end > field_start && req_end <= field_end)) {
+		 if (req_end > field_start && field_end > req_start) {
 			tmp_val = 0;
 
 			err = xen_pcibk_config_read(dev, field_start,
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/xen/xen-pciback/pciback_ops.c linux-libre-4.4.107-gnu/drivers/xen/xen-pciback/pciback_ops.c
--- linux-libre-4.4-gnu/drivers/xen/xen-pciback/pciback_ops.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/xen/xen-pciback/pciback_ops.c	2017-12-20 04:05:01.000000000 -0500
@@ -227,8 +227,9 @@ int xen_pcibk_enable_msix(struct xen_pci
 	/*
 	 * PCI_COMMAND_MEMORY must be enabled, otherwise we may not be able
 	 * to access the BARs where the MSI-X entries reside.
+	 * But VF devices are unique in which the PF needs to be checked.
 	 */
-	pci_read_config_word(dev, PCI_COMMAND, &cmd);
+	pci_read_config_word(pci_physfn(dev), PCI_COMMAND, &cmd);
 	if (dev->msi_enabled || !(cmd & PCI_COMMAND_MEMORY))
 		return -ENXIO;
 
@@ -332,6 +333,9 @@ void xen_pcibk_do_op(struct work_struct
 	struct xen_pcibk_dev_data *dev_data = NULL;
 	struct xen_pci_op *op = &pdev->op;
 	int test_intx = 0;
+#ifdef CONFIG_PCI_MSI
+	unsigned int nr = 0;
+#endif
 
 	*op = pdev->sh_info->op;
 	barrier();
@@ -360,6 +364,7 @@ void xen_pcibk_do_op(struct work_struct
 			op->err = xen_pcibk_disable_msi(pdev, dev, op);
 			break;
 		case XEN_PCI_OP_enable_msix:
+			nr = op->value;
 			op->err = xen_pcibk_enable_msix(pdev, dev, op);
 			break;
 		case XEN_PCI_OP_disable_msix:
@@ -382,7 +387,7 @@ void xen_pcibk_do_op(struct work_struct
 	if (op->cmd == XEN_PCI_OP_enable_msix && op->err == 0) {
 		unsigned int i;
 
-		for (i = 0; i < op->value; i++)
+		for (i = 0; i < nr; i++)
 			pdev->sh_info->op.msix_entries[i].vector =
 				op->msix_entries[i].vector;
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/drivers/xen/xen-scsiback.c linux-libre-4.4.107-gnu/drivers/xen/xen-scsiback.c
--- linux-libre-4.4-gnu/drivers/xen/xen-scsiback.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/drivers/xen/xen-scsiback.c	2017-12-20 04:05:01.000000000 -0500
@@ -939,12 +939,12 @@ out:
 	spin_unlock_irqrestore(&info->v2p_lock, flags);
 
 out_free:
-	mutex_lock(&tpg->tv_tpg_mutex);
-	tpg->tv_tpg_fe_count--;
-	mutex_unlock(&tpg->tv_tpg_mutex);
-
-	if (err)
+	if (err) {
+		mutex_lock(&tpg->tv_tpg_mutex);
+		tpg->tv_tpg_fe_count--;
+		mutex_unlock(&tpg->tv_tpg_mutex);
 		kfree(new);
+	}
 
 	return err;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/9p/acl.c linux-libre-4.4.107-gnu/fs/9p/acl.c
--- linux-libre-4.4-gnu/fs/9p/acl.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/9p/acl.c	2017-12-20 04:05:01.000000000 -0500
@@ -282,32 +282,28 @@ static int v9fs_xattr_set_acl(const stru
 	switch (handler->flags) {
 	case ACL_TYPE_ACCESS:
 		if (acl) {
-			umode_t mode = inode->i_mode;
-			retval = posix_acl_equiv_mode(acl, &mode);
-			if (retval < 0)
+			struct iattr iattr;
+			struct posix_acl *old_acl = acl;
+
+			retval = posix_acl_update_mode(inode, &iattr.ia_mode, &acl);
+			if (retval)
 				goto err_out;
-			else {
-				struct iattr iattr;
-				if (retval == 0) {
-					/*
-					 * ACL can be represented
-					 * by the mode bits. So don't
-					 * update ACL.
-					 */
-					acl = NULL;
-					value = NULL;
-					size = 0;
-				}
-				/* Updte the mode bits */
-				iattr.ia_mode = ((mode & S_IALLUGO) |
-						 (inode->i_mode & ~S_IALLUGO));
-				iattr.ia_valid = ATTR_MODE;
-				/* FIXME should we update ctime ?
-				 * What is the following setxattr update the
-				 * mode ?
+			if (!acl) {
+				/*
+				 * ACL can be represented
+				 * by the mode bits. So don't
+				 * update ACL.
 				 */
-				v9fs_vfs_setattr_dotl(dentry, &iattr);
+				posix_acl_release(old_acl);
+				value = NULL;
+				size = 0;
 			}
+			iattr.ia_valid = ATTR_MODE;
+			/* FIXME should we update ctime ?
+			 * What is the following setxattr update the
+			 * mode ?
+			 */
+			v9fs_vfs_setattr_dotl(dentry, &iattr);
 		}
 		break;
 	case ACL_TYPE_DEFAULT:
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/9p/vfs_file.c linux-libre-4.4.107-gnu/fs/9p/vfs_file.c
--- linux-libre-4.4-gnu/fs/9p/vfs_file.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/9p/vfs_file.c	2017-12-20 04:05:01.000000000 -0500
@@ -74,7 +74,7 @@ int v9fs_file_open(struct inode *inode,
 					v9fs_proto_dotu(v9ses));
 	fid = file->private_data;
 	if (!fid) {
-		fid = v9fs_fid_clone(file->f_path.dentry);
+		fid = v9fs_fid_clone(file_dentry(file));
 		if (IS_ERR(fid))
 			return PTR_ERR(fid);
 
@@ -100,7 +100,7 @@ int v9fs_file_open(struct inode *inode,
 		 * because we want write after unlink usecase
 		 * to work.
 		 */
-		fid = v9fs_writeback_fid(file->f_path.dentry);
+		fid = v9fs_writeback_fid(file_dentry(file));
 		if (IS_ERR(fid)) {
 			err = PTR_ERR(fid);
 			mutex_unlock(&v9inode->v_mutex);
@@ -516,7 +516,7 @@ v9fs_mmap_file_mmap(struct file *filp, s
 		 * because we want write after unlink usecase
 		 * to work.
 		 */
-		fid = v9fs_writeback_fid(filp->f_path.dentry);
+		fid = v9fs_writeback_fid(file_dentry(filp));
 		if (IS_ERR(fid)) {
 			retval = PTR_ERR(fid);
 			mutex_unlock(&v9inode->v_mutex);
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/9p/vfs_inode.c linux-libre-4.4.107-gnu/fs/9p/vfs_inode.c
--- linux-libre-4.4-gnu/fs/9p/vfs_inode.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/9p/vfs_inode.c	2017-12-20 04:05:01.000000000 -0500
@@ -483,6 +483,9 @@ static int v9fs_test_inode(struct inode
 
 	if (v9inode->qid.type != st->qid.type)
 		return 0;
+
+	if (v9inode->qid.path != st->qid.path)
+		return 0;
 	return 1;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/9p/vfs_inode_dotl.c linux-libre-4.4.107-gnu/fs/9p/vfs_inode_dotl.c
--- linux-libre-4.4-gnu/fs/9p/vfs_inode_dotl.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/9p/vfs_inode_dotl.c	2017-12-20 04:05:01.000000000 -0500
@@ -87,6 +87,9 @@ static int v9fs_test_inode_dotl(struct i
 
 	if (v9inode->qid.type != st->qid.type)
 		return 0;
+
+	if (v9inode->qid.path != st->qid.path)
+		return 0;
 	return 1;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/affs/super.c linux-libre-4.4.107-gnu/fs/affs/super.c
--- linux-libre-4.4-gnu/fs/affs/super.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/affs/super.c	2017-12-20 04:05:01.000000000 -0500
@@ -528,7 +528,7 @@ affs_remount(struct super_block *sb, int
 	char			*prefix = NULL;
 
 	new_opts = kstrdup(data, GFP_KERNEL);
-	if (!new_opts)
+	if (data && !new_opts)
 		return -ENOMEM;
 
 	pr_debug("%s(flags=0x%x,opts=\"%s\")\n", __func__, *flags, data);
@@ -546,7 +546,8 @@ affs_remount(struct super_block *sb, int
 	}
 
 	flush_delayed_work(&sbi->sb_work);
-	replace_mount_options(sb, new_opts);
+	if (new_opts)
+		replace_mount_options(sb, new_opts);
 
 	sbi->s_flags = mount_flags;
 	sbi->s_mode  = mode;
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/afs/callback.c linux-libre-4.4.107-gnu/fs/afs/callback.c
--- linux-libre-4.4-gnu/fs/afs/callback.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/afs/callback.c	2017-12-20 04:05:01.000000000 -0500
@@ -362,7 +362,7 @@ static void afs_callback_updater(struct
 {
 	struct afs_server *server;
 	struct afs_vnode *vnode, *xvnode;
-	time_t now;
+	time64_t now;
 	long timeout;
 	int ret;
 
@@ -370,7 +370,7 @@ static void afs_callback_updater(struct
 
 	_enter("");
 
-	now = get_seconds();
+	now = ktime_get_real_seconds();
 
 	/* find the first vnode to update */
 	spin_lock(&server->cb_lock);
@@ -424,7 +424,8 @@ static void afs_callback_updater(struct
 
 	/* and then reschedule */
 	_debug("reschedule");
-	vnode->update_at = get_seconds() + afs_vnode_update_timeout;
+	vnode->update_at = ktime_get_real_seconds() +
+			afs_vnode_update_timeout;
 
 	spin_lock(&server->cb_lock);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/afs/cmservice.c linux-libre-4.4.107-gnu/fs/afs/cmservice.c
--- linux-libre-4.4-gnu/fs/afs/cmservice.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/afs/cmservice.c	2017-12-20 04:05:01.000000000 -0500
@@ -115,6 +115,9 @@ bool afs_cm_incoming_call(struct afs_cal
 	case CBProbe:
 		call->type = &afs_SRXCBProbe;
 		return true;
+	case CBProbeUuid:
+		call->type = &afs_SRXCBProbeUuid;
+		return true;
 	case CBTellMeAboutYourself:
 		call->type = &afs_SRXCBTellMeAboutYourself;
 		return true;
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/afs/file.c linux-libre-4.4.107-gnu/fs/afs/file.c
--- linux-libre-4.4-gnu/fs/afs/file.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/afs/file.c	2017-12-20 04:05:01.000000000 -0500
@@ -29,6 +29,7 @@ static int afs_readpages(struct file *fi
 
 const struct file_operations afs_file_operations = {
 	.open		= afs_open,
+	.flush		= afs_flush,
 	.release	= afs_release,
 	.llseek		= generic_file_llseek,
 	.read_iter	= generic_file_read_iter,
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/afs/fsclient.c linux-libre-4.4.107-gnu/fs/afs/fsclient.c
--- linux-libre-4.4-gnu/fs/afs/fsclient.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/afs/fsclient.c	2017-12-20 04:05:01.000000000 -0500
@@ -105,7 +105,7 @@ static void xdr_decode_AFSFetchStatus(co
 			vnode->vfs_inode.i_mode = mode;
 		}
 
-		vnode->vfs_inode.i_ctime.tv_sec	= status->mtime_server;
+		vnode->vfs_inode.i_ctime.tv_sec	= status->mtime_client;
 		vnode->vfs_inode.i_mtime	= vnode->vfs_inode.i_ctime;
 		vnode->vfs_inode.i_atime	= vnode->vfs_inode.i_ctime;
 		vnode->vfs_inode.i_version	= data_version;
@@ -139,7 +139,7 @@ static void xdr_decode_AFSCallBack(const
 	vnode->cb_version	= ntohl(*bp++);
 	vnode->cb_expiry	= ntohl(*bp++);
 	vnode->cb_type		= ntohl(*bp++);
-	vnode->cb_expires	= vnode->cb_expiry + get_seconds();
+	vnode->cb_expires	= vnode->cb_expiry + ktime_get_real_seconds();
 	*_bp = bp;
 }
 
@@ -703,8 +703,8 @@ int afs_fs_create(struct afs_server *ser
 		memset(bp, 0, padsz);
 		bp = (void *) bp + padsz;
 	}
-	*bp++ = htonl(AFS_SET_MODE);
-	*bp++ = 0; /* mtime */
+	*bp++ = htonl(AFS_SET_MODE | AFS_SET_MTIME);
+	*bp++ = htonl(vnode->vfs_inode.i_mtime.tv_sec); /* mtime */
 	*bp++ = 0; /* owner */
 	*bp++ = 0; /* group */
 	*bp++ = htonl(mode & S_IALLUGO); /* unix mode */
@@ -981,8 +981,8 @@ int afs_fs_symlink(struct afs_server *se
 		memset(bp, 0, c_padsz);
 		bp = (void *) bp + c_padsz;
 	}
-	*bp++ = htonl(AFS_SET_MODE);
-	*bp++ = 0; /* mtime */
+	*bp++ = htonl(AFS_SET_MODE | AFS_SET_MTIME);
+	*bp++ = htonl(vnode->vfs_inode.i_mtime.tv_sec); /* mtime */
 	*bp++ = 0; /* owner */
 	*bp++ = 0; /* group */
 	*bp++ = htonl(S_IRWXUGO); /* unix mode */
@@ -1192,8 +1192,8 @@ static int afs_fs_store_data64(struct af
 	*bp++ = htonl(vnode->fid.vnode);
 	*bp++ = htonl(vnode->fid.unique);
 
-	*bp++ = 0; /* mask */
-	*bp++ = 0; /* mtime */
+	*bp++ = htonl(AFS_SET_MTIME); /* mask */
+	*bp++ = htonl(vnode->vfs_inode.i_mtime.tv_sec); /* mtime */
 	*bp++ = 0; /* owner */
 	*bp++ = 0; /* group */
 	*bp++ = 0; /* unix mode */
@@ -1225,7 +1225,7 @@ int afs_fs_store_data(struct afs_server
 	_enter(",%x,{%x:%u},,",
 	       key_serial(wb->key), vnode->fid.vid, vnode->fid.vnode);
 
-	size = to - offset;
+	size = (loff_t)to - (loff_t)offset;
 	if (first != last)
 		size += (loff_t)(last - first) << PAGE_SHIFT;
 	pos = (loff_t)first << PAGE_SHIFT;
@@ -1269,8 +1269,8 @@ int afs_fs_store_data(struct afs_server
 	*bp++ = htonl(vnode->fid.vnode);
 	*bp++ = htonl(vnode->fid.unique);
 
-	*bp++ = 0; /* mask */
-	*bp++ = 0; /* mtime */
+	*bp++ = htonl(AFS_SET_MTIME); /* mask */
+	*bp++ = htonl(vnode->vfs_inode.i_mtime.tv_sec); /* mtime */
 	*bp++ = 0; /* owner */
 	*bp++ = 0; /* group */
 	*bp++ = 0; /* unix mode */
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/afs/inode.c linux-libre-4.4.107-gnu/fs/afs/inode.c
--- linux-libre-4.4-gnu/fs/afs/inode.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/afs/inode.c	2017-12-20 04:05:01.000000000 -0500
@@ -69,9 +69,9 @@ static int afs_inode_map_status(struct a
 
 	set_nlink(inode, vnode->status.nlink);
 	inode->i_uid		= vnode->status.owner;
-	inode->i_gid		= GLOBAL_ROOT_GID;
+	inode->i_gid            = vnode->status.group;
 	inode->i_size		= vnode->status.size;
-	inode->i_ctime.tv_sec	= vnode->status.mtime_server;
+	inode->i_ctime.tv_sec	= vnode->status.mtime_client;
 	inode->i_ctime.tv_nsec	= 0;
 	inode->i_atime		= inode->i_mtime = inode->i_ctime;
 	inode->i_blocks		= 0;
@@ -244,12 +244,13 @@ struct inode *afs_iget(struct super_bloc
 			vnode->cb_version = 0;
 			vnode->cb_expiry = 0;
 			vnode->cb_type = 0;
-			vnode->cb_expires = get_seconds();
+			vnode->cb_expires = ktime_get_real_seconds();
 		} else {
 			vnode->cb_version = cb->version;
 			vnode->cb_expiry = cb->expiry;
 			vnode->cb_type = cb->type;
-			vnode->cb_expires = vnode->cb_expiry + get_seconds();
+			vnode->cb_expires = vnode->cb_expiry +
+				ktime_get_real_seconds();
 		}
 	}
 
@@ -322,7 +323,7 @@ int afs_validate(struct afs_vnode *vnode
 	    !test_bit(AFS_VNODE_CB_BROKEN, &vnode->flags) &&
 	    !test_bit(AFS_VNODE_MODIFIED, &vnode->flags) &&
 	    !test_bit(AFS_VNODE_ZAP_DATA, &vnode->flags)) {
-		if (vnode->cb_expires < get_seconds() + 10) {
+		if (vnode->cb_expires < ktime_get_real_seconds() + 10) {
 			_debug("callback expired");
 			set_bit(AFS_VNODE_CB_BROKEN, &vnode->flags);
 		} else {
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/afs/internal.h linux-libre-4.4.107-gnu/fs/afs/internal.h
--- linux-libre-4.4-gnu/fs/afs/internal.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/afs/internal.h	2017-12-20 04:05:01.000000000 -0500
@@ -11,6 +11,7 @@
 
 #include <linux/compiler.h>
 #include <linux/kernel.h>
+#include <linux/ktime.h>
 #include <linux/fs.h>
 #include <linux/pagemap.h>
 #include <linux/skbuff.h>
@@ -247,7 +248,7 @@ struct afs_cache_vhash {
  */
 struct afs_vlocation {
 	atomic_t		usage;
-	time_t			time_of_death;	/* time at which put reduced usage to 0 */
+	time64_t		time_of_death;	/* time at which put reduced usage to 0 */
 	struct list_head	link;		/* link in cell volume location list */
 	struct list_head	grave;		/* link in master graveyard list */
 	struct list_head	update;		/* link in master update list */
@@ -258,7 +259,7 @@ struct afs_vlocation {
 	struct afs_cache_vlocation vldb;	/* volume information DB record */
 	struct afs_volume	*vols[3];	/* volume access record pointer (index by type) */
 	wait_queue_head_t	waitq;		/* status change waitqueue */
-	time_t			update_at;	/* time at which record should be updated */
+	time64_t		update_at;	/* time at which record should be updated */
 	spinlock_t		lock;		/* access lock */
 	afs_vlocation_state_t	state;		/* volume location state */
 	unsigned short		upd_rej_cnt;	/* ENOMEDIUM count during update */
@@ -271,7 +272,7 @@ struct afs_vlocation {
  */
 struct afs_server {
 	atomic_t		usage;
-	time_t			time_of_death;	/* time at which put reduced usage to 0 */
+	time64_t		time_of_death;	/* time at which put reduced usage to 0 */
 	struct in_addr		addr;		/* server address */
 	struct afs_cell		*cell;		/* cell in which server resides */
 	struct list_head	link;		/* link in cell's server list */
@@ -374,8 +375,8 @@ struct afs_vnode {
 	struct rb_node		server_rb;	/* link in server->fs_vnodes */
 	struct rb_node		cb_promise;	/* link in server->cb_promises */
 	struct work_struct	cb_broken_work;	/* work to be done on callback break */
-	time_t			cb_expires;	/* time at which callback expires */
-	time_t			cb_expires_at;	/* time used to order cb_promise */
+	time64_t		cb_expires;	/* time at which callback expires */
+	time64_t		cb_expires_at;	/* time used to order cb_promise */
 	unsigned		cb_version;	/* callback version */
 	unsigned		cb_expiry;	/* callback expiry time */
 	afs_callback_type_t	cb_type;	/* type of callback */
@@ -749,6 +750,7 @@ extern int afs_writepages(struct address
 extern void afs_pages_written_back(struct afs_vnode *, struct afs_call *);
 extern ssize_t afs_file_write(struct kiocb *, struct iov_iter *);
 extern int afs_writeback_all(struct afs_vnode *);
+extern int afs_flush(struct file *, fl_owner_t);
 extern int afs_fsync(struct file *, loff_t, loff_t, int);
 
 
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/afs/security.c linux-libre-4.4.107-gnu/fs/afs/security.c
--- linux-libre-4.4-gnu/fs/afs/security.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/afs/security.c	2017-12-20 04:05:01.000000000 -0500
@@ -340,17 +340,22 @@ int afs_permission(struct inode *inode,
 	} else {
 		if (!(access & AFS_ACE_LOOKUP))
 			goto permission_denied;
+		if ((mask & MAY_EXEC) && !(inode->i_mode & S_IXUSR))
+			goto permission_denied;
 		if (mask & (MAY_EXEC | MAY_READ)) {
 			if (!(access & AFS_ACE_READ))
 				goto permission_denied;
+			if (!(inode->i_mode & S_IRUSR))
+				goto permission_denied;
 		} else if (mask & MAY_WRITE) {
 			if (!(access & AFS_ACE_WRITE))
 				goto permission_denied;
+			if (!(inode->i_mode & S_IWUSR))
+				goto permission_denied;
 		}
 	}
 
 	key_put(key);
-	ret = generic_permission(inode, mask);
 	_leave(" = %d", ret);
 	return ret;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/afs/server.c linux-libre-4.4.107-gnu/fs/afs/server.c
--- linux-libre-4.4-gnu/fs/afs/server.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/afs/server.c	2017-12-20 04:05:01.000000000 -0500
@@ -237,7 +237,7 @@ void afs_put_server(struct afs_server *s
 	spin_lock(&afs_server_graveyard_lock);
 	if (atomic_read(&server->usage) == 0) {
 		list_move_tail(&server->grave, &afs_server_graveyard);
-		server->time_of_death = get_seconds();
+		server->time_of_death = ktime_get_real_seconds();
 		queue_delayed_work(afs_wq, &afs_server_reaper,
 				   afs_server_timeout * HZ);
 	}
@@ -272,9 +272,9 @@ static void afs_reap_server(struct work_
 	LIST_HEAD(corpses);
 	struct afs_server *server;
 	unsigned long delay, expiry;
-	time_t now;
+	time64_t now;
 
-	now = get_seconds();
+	now = ktime_get_real_seconds();
 	spin_lock(&afs_server_graveyard_lock);
 
 	while (!list_empty(&afs_server_graveyard)) {
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/afs/vlocation.c linux-libre-4.4.107-gnu/fs/afs/vlocation.c
--- linux-libre-4.4-gnu/fs/afs/vlocation.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/afs/vlocation.c	2017-12-20 04:05:01.000000000 -0500
@@ -340,7 +340,8 @@ static void afs_vlocation_queue_for_upda
 	struct afs_vlocation *xvl;
 
 	/* wait at least 10 minutes before updating... */
-	vl->update_at = get_seconds() + afs_vlocation_update_timeout;
+	vl->update_at = ktime_get_real_seconds() +
+			afs_vlocation_update_timeout;
 
 	spin_lock(&afs_vlocation_updates_lock);
 
@@ -506,7 +507,7 @@ void afs_put_vlocation(struct afs_vlocat
 	if (atomic_read(&vl->usage) == 0) {
 		_debug("buried");
 		list_move_tail(&vl->grave, &afs_vlocation_graveyard);
-		vl->time_of_death = get_seconds();
+		vl->time_of_death = ktime_get_real_seconds();
 		queue_delayed_work(afs_wq, &afs_vlocation_reap,
 				   afs_vlocation_timeout * HZ);
 
@@ -543,11 +544,11 @@ static void afs_vlocation_reaper(struct
 	LIST_HEAD(corpses);
 	struct afs_vlocation *vl;
 	unsigned long delay, expiry;
-	time_t now;
+	time64_t now;
 
 	_enter("");
 
-	now = get_seconds();
+	now = ktime_get_real_seconds();
 	spin_lock(&afs_vlocation_graveyard_lock);
 
 	while (!list_empty(&afs_vlocation_graveyard)) {
@@ -622,13 +623,13 @@ static void afs_vlocation_updater(struct
 {
 	struct afs_cache_vlocation vldb;
 	struct afs_vlocation *vl, *xvl;
-	time_t now;
+	time64_t now;
 	long timeout;
 	int ret;
 
 	_enter("");
 
-	now = get_seconds();
+	now = ktime_get_real_seconds();
 
 	/* find a record to update */
 	spin_lock(&afs_vlocation_updates_lock);
@@ -684,7 +685,8 @@ static void afs_vlocation_updater(struct
 
 	/* and then reschedule */
 	_debug("reschedule");
-	vl->update_at = get_seconds() + afs_vlocation_update_timeout;
+	vl->update_at = ktime_get_real_seconds() +
+			afs_vlocation_update_timeout;
 
 	spin_lock(&afs_vlocation_updates_lock);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/afs/write.c linux-libre-4.4.107-gnu/fs/afs/write.c
--- linux-libre-4.4-gnu/fs/afs/write.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/afs/write.c	2017-12-20 04:05:01.000000000 -0500
@@ -148,12 +148,12 @@ int afs_write_begin(struct file *file, s
 		kfree(candidate);
 		return -ENOMEM;
 	}
-	*pagep = page;
-	/* page won't leak in error case: it eventually gets cleaned off LRU */
 
 	if (!PageUptodate(page) && len != PAGE_CACHE_SIZE) {
 		ret = afs_fill_page(vnode, key, index << PAGE_CACHE_SHIFT, page);
 		if (ret < 0) {
+			unlock_page(page);
+			put_page(page);
 			kfree(candidate);
 			_leave(" = %d [prep]", ret);
 			return ret;
@@ -161,6 +161,9 @@ int afs_write_begin(struct file *file, s
 		SetPageUptodate(page);
 	}
 
+	/* page won't leak in error case: it eventually gets cleaned off LRU */
+	*pagep = page;
+
 try_again:
 	spin_lock(&vnode->writeback_lock);
 
@@ -296,10 +299,14 @@ static void afs_kill_pages(struct afs_vn
 		ASSERTCMP(pv.nr, ==, count);
 
 		for (loop = 0; loop < count; loop++) {
-			ClearPageUptodate(pv.pages[loop]);
+			struct page *page = pv.pages[loop];
+			ClearPageUptodate(page);
 			if (error)
-				SetPageError(pv.pages[loop]);
-			end_page_writeback(pv.pages[loop]);
+				SetPageError(page);
+			if (PageWriteback(page))
+				end_page_writeback(page);
+			if (page->index >= first)
+				first = page->index + 1;
 		}
 
 		__pagevec_release(&pv);
@@ -503,6 +510,7 @@ static int afs_writepages_region(struct
 
 		if (PageWriteback(page) || !PageDirty(page)) {
 			unlock_page(page);
+			put_page(page);
 			continue;
 		}
 
@@ -740,6 +748,20 @@ out:
 }
 
 /*
+ * Flush out all outstanding writes on a file opened for writing when it is
+ * closed.
+ */
+int afs_flush(struct file *file, fl_owner_t id)
+{
+	_enter("");
+
+	if ((file->f_mode & FMODE_WRITE) == 0)
+		return 0;
+
+	return vfs_fsync(file, 0);
+}
+
+/*
  * notification that a previously read-only page is about to become writable
  * - if it returns an error, the caller will deliver a bus error signal
  */
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/aio.c linux-libre-4.4.107-gnu/fs/aio.c
--- linux-libre-4.4-gnu/fs/aio.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/aio.c	2017-12-20 04:05:01.000000000 -0500
@@ -239,7 +239,12 @@ static struct dentry *aio_mount(struct f
 	static const struct dentry_operations ops = {
 		.d_dname	= simple_dname,
 	};
-	return mount_pseudo(fs_type, "aio:", NULL, &ops, AIO_RING_MAGIC);
+	struct dentry *root = mount_pseudo(fs_type, "aio:", NULL, &ops,
+					   AIO_RING_MAGIC);
+
+	if (!IS_ERR(root))
+		root->d_sb->s_iflags |= SB_I_NOEXEC;
+	return root;
 }
 
 /* aio_setup
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/attr.c linux-libre-4.4.107-gnu/fs/attr.c
--- linux-libre-4.4-gnu/fs/attr.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/attr.c	2017-12-20 04:05:01.000000000 -0500
@@ -202,6 +202,21 @@ int notify_change(struct dentry * dentry
 			return -EPERM;
 	}
 
+	/*
+	 * If utimes(2) and friends are called with times == NULL (or both
+	 * times are UTIME_NOW), then we need to check for write permission
+	 */
+	if (ia_valid & ATTR_TOUCH) {
+		if (IS_IMMUTABLE(inode))
+			return -EPERM;
+
+		if (!inode_owner_or_capable(inode)) {
+			error = inode_permission(inode, MAY_WRITE);
+			if (error)
+				return error;
+		}
+	}
+
 	if ((ia_valid & ATTR_MODE)) {
 		umode_t amode = attr->ia_mode;
 		/* Flag setting protected by i_mutex */
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/autofs4/autofs_i.h linux-libre-4.4.107-gnu/fs/autofs4/autofs_i.h
--- linux-libre-4.4-gnu/fs/autofs4/autofs_i.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/autofs4/autofs_i.h	2017-12-20 04:05:01.000000000 -0500
@@ -79,9 +79,13 @@ struct autofs_info {
 };
 
 #define AUTOFS_INF_EXPIRING	(1<<0) /* dentry is in the process of expiring */
-#define AUTOFS_INF_NO_RCU	(1<<1) /* the dentry is being considered
+#define AUTOFS_INF_WANT_EXPIRE	(1<<1) /* the dentry is being considered
 					* for expiry, so RCU_walk is
-					* not permitted
+					* not permitted.  If it progresses to
+					* actual expiry attempt, the flag is
+					* not cleared when EXPIRING is set -
+					* in that case it gets cleared only
+					* when it comes to clearing EXPIRING.
 					*/
 #define AUTOFS_INF_PENDING	(1<<2) /* dentry pending mount */
 
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/autofs4/dev-ioctl.c linux-libre-4.4.107-gnu/fs/autofs4/dev-ioctl.c
--- linux-libre-4.4-gnu/fs/autofs4/dev-ioctl.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/autofs4/dev-ioctl.c	2017-12-20 04:05:01.000000000 -0500
@@ -331,7 +331,7 @@ static int autofs_dev_ioctl_fail(struct
 	int status;
 
 	token = (autofs_wqt_t) param->fail.token;
-	status = param->fail.status ? param->fail.status : -ENOENT;
+	status = param->fail.status < 0 ? param->fail.status : -ENOENT;
 	return autofs4_wait_release(sbi, token, status);
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/autofs4/expire.c linux-libre-4.4.107-gnu/fs/autofs4/expire.c
--- linux-libre-4.4-gnu/fs/autofs4/expire.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/autofs4/expire.c	2017-12-20 04:05:01.000000000 -0500
@@ -315,19 +315,17 @@ struct dentry *autofs4_expire_direct(str
 	if (ino->flags & AUTOFS_INF_PENDING)
 		goto out;
 	if (!autofs4_direct_busy(mnt, root, timeout, do_now)) {
-		ino->flags |= AUTOFS_INF_NO_RCU;
+		ino->flags |= AUTOFS_INF_WANT_EXPIRE;
 		spin_unlock(&sbi->fs_lock);
 		synchronize_rcu();
 		spin_lock(&sbi->fs_lock);
 		if (!autofs4_direct_busy(mnt, root, timeout, do_now)) {
 			ino->flags |= AUTOFS_INF_EXPIRING;
-			smp_mb();
-			ino->flags &= ~AUTOFS_INF_NO_RCU;
 			init_completion(&ino->expire_complete);
 			spin_unlock(&sbi->fs_lock);
 			return root;
 		}
-		ino->flags &= ~AUTOFS_INF_NO_RCU;
+		ino->flags &= ~AUTOFS_INF_WANT_EXPIRE;
 	}
 out:
 	spin_unlock(&sbi->fs_lock);
@@ -417,6 +415,7 @@ static struct dentry *should_expire(stru
 	}
 	return NULL;
 }
+
 /*
  * Find an eligible tree to time-out
  * A tree is eligible if :-
@@ -432,6 +431,7 @@ struct dentry *autofs4_expire_indirect(s
 	struct dentry *root = sb->s_root;
 	struct dentry *dentry;
 	struct dentry *expired;
+	struct dentry *found;
 	struct autofs_info *ino;
 
 	if (!root)
@@ -442,48 +442,54 @@ struct dentry *autofs4_expire_indirect(s
 
 	dentry = NULL;
 	while ((dentry = get_next_positive_subdir(dentry, root))) {
+		int flags = how;
+
 		spin_lock(&sbi->fs_lock);
 		ino = autofs4_dentry_ino(dentry);
-		if (ino->flags & AUTOFS_INF_NO_RCU)
-			expired = NULL;
-		else
-			expired = should_expire(dentry, mnt, timeout, how);
-		if (!expired) {
+		if (ino->flags & AUTOFS_INF_WANT_EXPIRE) {
 			spin_unlock(&sbi->fs_lock);
 			continue;
 		}
+		spin_unlock(&sbi->fs_lock);
+
+		expired = should_expire(dentry, mnt, timeout, flags);
+		if (!expired)
+			continue;
+
+		spin_lock(&sbi->fs_lock);
 		ino = autofs4_dentry_ino(expired);
-		ino->flags |= AUTOFS_INF_NO_RCU;
+		ino->flags |= AUTOFS_INF_WANT_EXPIRE;
 		spin_unlock(&sbi->fs_lock);
 		synchronize_rcu();
-		spin_lock(&sbi->fs_lock);
-		if (should_expire(expired, mnt, timeout, how)) {
-			if (expired != dentry)
-				dput(dentry);
-			goto found;
-		}
 
-		ino->flags &= ~AUTOFS_INF_NO_RCU;
+		/* Make sure a reference is not taken on found if
+		 * things have changed.
+		 */
+		flags &= ~AUTOFS_EXP_LEAVES;
+		found = should_expire(expired, mnt, timeout, how);
+		if (!found || found != expired)
+			/* Something has changed, continue */
+			goto next;
+
 		if (expired != dentry)
-			dput(expired);
+			dput(dentry);
+
+		spin_lock(&sbi->fs_lock);
+		goto found;
+next:
+		spin_lock(&sbi->fs_lock);
+		ino->flags &= ~AUTOFS_INF_WANT_EXPIRE;
 		spin_unlock(&sbi->fs_lock);
+		if (expired != dentry)
+			dput(expired);
 	}
 	return NULL;
 
 found:
 	DPRINTK("returning %p %pd", expired, expired);
 	ino->flags |= AUTOFS_INF_EXPIRING;
-	smp_mb();
-	ino->flags &= ~AUTOFS_INF_NO_RCU;
 	init_completion(&ino->expire_complete);
 	spin_unlock(&sbi->fs_lock);
-	spin_lock(&sbi->lookup_lock);
-	spin_lock(&expired->d_parent->d_lock);
-	spin_lock_nested(&expired->d_lock, DENTRY_D_LOCK_NESTED);
-	list_move(&expired->d_parent->d_subdirs, &expired->d_child);
-	spin_unlock(&expired->d_lock);
-	spin_unlock(&expired->d_parent->d_lock);
-	spin_unlock(&sbi->lookup_lock);
 	return expired;
 }
 
@@ -492,15 +498,27 @@ int autofs4_expire_wait(struct dentry *d
 	struct autofs_sb_info *sbi = autofs4_sbi(dentry->d_sb);
 	struct autofs_info *ino = autofs4_dentry_ino(dentry);
 	int status;
+	int state;
 
 	/* Block on any pending expire */
-	if (!(ino->flags & (AUTOFS_INF_EXPIRING | AUTOFS_INF_NO_RCU)))
+	if (!(ino->flags & AUTOFS_INF_WANT_EXPIRE))
 		return 0;
 	if (rcu_walk)
 		return -ECHILD;
 
+retry:
 	spin_lock(&sbi->fs_lock);
-	if (ino->flags & AUTOFS_INF_EXPIRING) {
+	state = ino->flags & (AUTOFS_INF_WANT_EXPIRE | AUTOFS_INF_EXPIRING);
+	if (state == AUTOFS_INF_WANT_EXPIRE) {
+		spin_unlock(&sbi->fs_lock);
+		/*
+		 * Possibly being selected for expire, wait until
+		 * it's selected or not.
+		 */
+		schedule_timeout_uninterruptible(HZ/10);
+		goto retry;
+	}
+	if (state & AUTOFS_INF_EXPIRING) {
 		spin_unlock(&sbi->fs_lock);
 
 		DPRINTK("waiting for expire %p name=%pd", dentry, dentry);
@@ -551,7 +569,7 @@ int autofs4_expire_run(struct super_bloc
 	ino = autofs4_dentry_ino(dentry);
 	/* avoid rapid-fire expire attempts if expiry fails */
 	ino->last_used = now;
-	ino->flags &= ~AUTOFS_INF_EXPIRING;
+	ino->flags &= ~(AUTOFS_INF_EXPIRING|AUTOFS_INF_WANT_EXPIRE);
 	complete_all(&ino->expire_complete);
 	spin_unlock(&sbi->fs_lock);
 
@@ -579,7 +597,7 @@ int autofs4_do_expire_multi(struct super
 		spin_lock(&sbi->fs_lock);
 		/* avoid rapid-fire expire attempts if expiry fails */
 		ino->last_used = now;
-		ino->flags &= ~AUTOFS_INF_EXPIRING;
+		ino->flags &= ~(AUTOFS_INF_EXPIRING|AUTOFS_INF_WANT_EXPIRE);
 		complete_all(&ino->expire_complete);
 		spin_unlock(&sbi->fs_lock);
 		dput(dentry);
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/autofs4/root.c linux-libre-4.4.107-gnu/fs/autofs4/root.c
--- linux-libre-4.4-gnu/fs/autofs4/root.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/autofs4/root.c	2017-12-20 04:05:01.000000000 -0500
@@ -455,7 +455,7 @@ static int autofs4_d_manage(struct dentr
 		 * a mount-trap.
 		 */
 		struct inode *inode;
-		if (ino->flags & (AUTOFS_INF_EXPIRING | AUTOFS_INF_NO_RCU))
+		if (ino->flags & AUTOFS_INF_WANT_EXPIRE)
 			return 0;
 		if (d_mountpoint(dentry))
 			return 0;
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/autofs4/waitq.c linux-libre-4.4.107-gnu/fs/autofs4/waitq.c
--- linux-libre-4.4-gnu/fs/autofs4/waitq.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/autofs4/waitq.c	2017-12-20 04:05:01.000000000 -0500
@@ -87,7 +87,8 @@ static int autofs4_write(struct autofs_s
 		spin_unlock_irqrestore(&current->sighand->siglock, flags);
 	}
 
-	return (bytes > 0);
+	/* if 'wr' returned 0 (impossible) we assume -EIO (safe) */
+	return bytes == 0 ? 0 : wr < 0 ? wr : -EIO;
 }
 	
 static void autofs4_notify_daemon(struct autofs_sb_info *sbi,
@@ -101,6 +102,7 @@ static void autofs4_notify_daemon(struct
 	} pkt;
 	struct file *pipe = NULL;
 	size_t pktsz;
+	int ret;
 
 	DPRINTK("wait id = 0x%08lx, name = %.*s, type=%d",
 		(unsigned long) wq->wait_queue_token, wq->name.len, wq->name.name, type);
@@ -172,8 +174,18 @@ static void autofs4_notify_daemon(struct
 
 	mutex_unlock(&sbi->wq_mutex);
 
-	if (autofs4_write(sbi, pipe, &pkt, pktsz))
+	switch (ret = autofs4_write(sbi, pipe, &pkt, pktsz)) {
+	case 0:
+		break;
+	case -ENOMEM:
+	case -ERESTARTSYS:
+		/* Just fail this one */
+		autofs4_wait_release(sbi, wq->wait_queue_token, ret);
+		break;
+	default:
 		autofs4_catatonic_mode(sbi);
+		break;
+	}
 	fput(pipe);
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/binfmt_elf.c linux-libre-4.4.107-gnu/fs/binfmt_elf.c
--- linux-libre-4.4-gnu/fs/binfmt_elf.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/binfmt_elf.c	2017-12-20 04:05:01.000000000 -0500
@@ -905,17 +905,60 @@ static int load_elf_binary(struct linux_
 		elf_flags = MAP_PRIVATE | MAP_DENYWRITE | MAP_EXECUTABLE;
 
 		vaddr = elf_ppnt->p_vaddr;
+		/*
+		 * If we are loading ET_EXEC or we have already performed
+		 * the ET_DYN load_addr calculations, proceed normally.
+		 */
 		if (loc->elf_ex.e_type == ET_EXEC || load_addr_set) {
 			elf_flags |= MAP_FIXED;
 		} else if (loc->elf_ex.e_type == ET_DYN) {
-			/* Try and get dynamic programs out of the way of the
-			 * default mmap base, as well as whatever program they
-			 * might try to exec.  This is because the brk will
-			 * follow the loader, and is not movable.  */
-			load_bias = ELF_ET_DYN_BASE - vaddr;
-			if (current->flags & PF_RANDOMIZE)
-				load_bias += arch_mmap_rnd();
-			load_bias = ELF_PAGESTART(load_bias);
+			/*
+			 * This logic is run once for the first LOAD Program
+			 * Header for ET_DYN binaries to calculate the
+			 * randomization (load_bias) for all the LOAD
+			 * Program Headers, and to calculate the entire
+			 * size of the ELF mapping (total_size). (Note that
+			 * load_addr_set is set to true later once the
+			 * initial mapping is performed.)
+			 *
+			 * There are effectively two types of ET_DYN
+			 * binaries: programs (i.e. PIE: ET_DYN with INTERP)
+			 * and loaders (ET_DYN without INTERP, since they
+			 * _are_ the ELF interpreter). The loaders must
+			 * be loaded away from programs since the program
+			 * may otherwise collide with the loader (especially
+			 * for ET_EXEC which does not have a randomized
+			 * position). For example to handle invocations of
+			 * "./ld.so someprog" to test out a new version of
+			 * the loader, the subsequent program that the
+			 * loader loads must avoid the loader itself, so
+			 * they cannot share the same load range. Sufficient
+			 * room for the brk must be allocated with the
+			 * loader as well, since brk must be available with
+			 * the loader.
+			 *
+			 * Therefore, programs are loaded offset from
+			 * ELF_ET_DYN_BASE and loaders are loaded into the
+			 * independently randomized mmap region (0 load_bias
+			 * without MAP_FIXED).
+			 */
+			if (elf_interpreter) {
+				load_bias = ELF_ET_DYN_BASE;
+				if (current->flags & PF_RANDOMIZE)
+					load_bias += arch_mmap_rnd();
+				elf_flags |= MAP_FIXED;
+			} else
+				load_bias = 0;
+
+			/*
+			 * Since load_bias is used for all subsequent loading
+			 * calculations, we must lower it by the first vaddr
+			 * so that the remaining calculations based on the
+			 * ELF vaddrs will be correctly offset. The result
+			 * is then page aligned.
+			 */
+			load_bias = ELF_PAGESTART(load_bias - vaddr);
+
 			total_size = total_mapping_size(elf_phdata,
 							loc->elf_ex.e_phnum);
 			if (!total_size) {
@@ -2295,6 +2338,7 @@ static int elf_core_dump(struct coredump
 				goto end_coredump;
 		}
 	}
+	dump_truncate(cprm);
 
 	if (!elf_core_write_extra_data(cprm))
 		goto end_coredump;
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/block_dev.c linux-libre-4.4.107-gnu/fs/block_dev.c
--- linux-libre-4.4-gnu/fs/block_dev.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/block_dev.c	2017-12-20 04:05:01.000000000 -0500
@@ -88,12 +88,11 @@ void invalidate_bdev(struct block_device
 {
 	struct address_space *mapping = bdev->bd_inode->i_mapping;
 
-	if (mapping->nrpages == 0)
-		return;
-
-	invalidate_bh_lrus();
-	lru_add_drain_all();	/* make sure all lru add caches are flushed */
-	invalidate_mapping_pages(mapping, 0, -1);
+	if (mapping->nrpages) {
+		invalidate_bh_lrus();
+		lru_add_drain_all();	/* make sure all lru add caches are flushed */
+		invalidate_mapping_pages(mapping, 0, -1);
+	}
 	/* 99% of the time, we don't need to flush the cleancache on the bdev.
 	 * But, for the strange corners, lets be cautious
 	 */
@@ -759,7 +758,7 @@ static bool bd_may_claim(struct block_de
 		return true;	 /* already a holder */
 	else if (bdev->bd_holder != NULL)
 		return false; 	 /* held by someone else */
-	else if (bdev->bd_contains == bdev)
+	else if (whole == bdev)
 		return true;  	 /* is a whole device which isn't held */
 
 	else if (whole->bd_holder == bd_may_claim)
@@ -1098,7 +1097,6 @@ int revalidate_disk(struct gendisk *disk
 
 	if (disk->fops->revalidate_disk)
 		ret = disk->fops->revalidate_disk(disk);
-	blk_integrity_revalidate(disk);
 	bdev = bdget_disk(disk, 0);
 	if (!bdev)
 		return ret;
@@ -1806,6 +1804,7 @@ void iterate_bdevs(void (*func)(struct b
 	spin_lock(&blockdev_superblock->s_inode_list_lock);
 	list_for_each_entry(inode, &blockdev_superblock->s_inodes, i_sb_list) {
 		struct address_space *mapping = inode->i_mapping;
+		struct block_device *bdev;
 
 		spin_lock(&inode->i_lock);
 		if (inode->i_state & (I_FREEING|I_WILL_FREE|I_NEW) ||
@@ -1826,8 +1825,12 @@ void iterate_bdevs(void (*func)(struct b
 		 */
 		iput(old_inode);
 		old_inode = inode;
+		bdev = I_BDEV(inode);
 
-		func(I_BDEV(inode), arg);
+		mutex_lock(&bdev->bd_mutex);
+		if (bdev->bd_openers)
+			func(bdev, arg);
+		mutex_unlock(&bdev->bd_mutex);
 
 		spin_lock(&blockdev_superblock->s_inode_list_lock);
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/btrfs/acl.c linux-libre-4.4.107-gnu/fs/btrfs/acl.c
--- linux-libre-4.4-gnu/fs/btrfs/acl.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/btrfs/acl.c	2017-12-20 04:05:01.000000000 -0500
@@ -83,11 +83,9 @@ static int __btrfs_set_acl(struct btrfs_
 	case ACL_TYPE_ACCESS:
 		name = POSIX_ACL_XATTR_ACCESS;
 		if (acl) {
-			ret = posix_acl_equiv_mode(acl, &inode->i_mode);
-			if (ret < 0)
+			ret = posix_acl_update_mode(inode, &inode->i_mode, &acl);
+			if (ret)
 				return ret;
-			if (ret == 0)
-				acl = NULL;
 		}
 		ret = 0;
 		break;
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/btrfs/async-thread.c linux-libre-4.4.107-gnu/fs/btrfs/async-thread.c
--- linux-libre-4.4-gnu/fs/btrfs/async-thread.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/btrfs/async-thread.c	2017-12-20 04:05:01.000000000 -0500
@@ -70,6 +70,20 @@ void btrfs_##name(struct work_struct *ar
 	normal_work_helper(work);					\
 }
 
+bool btrfs_workqueue_normal_congested(struct btrfs_workqueue *wq)
+{
+	/*
+	 * We could compare wq->normal->pending with num_online_cpus()
+	 * to support "thresh == NO_THRESHOLD" case, but it requires
+	 * moving up atomic_inc/dec in thresh_queue/exec_hook. Let's
+	 * postpone it until someone needs the support of that case.
+	 */
+	if (wq->normal->thresh == NO_THRESHOLD)
+		return false;
+
+	return atomic_read(&wq->normal->pending) > wq->normal->thresh * 2;
+}
+
 BTRFS_WORK_HELPER(worker_helper);
 BTRFS_WORK_HELPER(delalloc_helper);
 BTRFS_WORK_HELPER(flush_delalloc_helper);
@@ -328,8 +342,8 @@ static inline void __btrfs_queue_work(st
 		list_add_tail(&work->ordered_list, &wq->ordered_list);
 		spin_unlock_irqrestore(&wq->list_lock, flags);
 	}
-	queue_work(wq->normal_wq, &work->normal_work);
 	trace_btrfs_work_queued(work);
+	queue_work(wq->normal_wq, &work->normal_work);
 }
 
 void btrfs_queue_work(struct btrfs_workqueue *wq,
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/btrfs/async-thread.h linux-libre-4.4.107-gnu/fs/btrfs/async-thread.h
--- linux-libre-4.4-gnu/fs/btrfs/async-thread.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/btrfs/async-thread.h	2017-12-20 04:05:01.000000000 -0500
@@ -80,4 +80,5 @@ void btrfs_queue_work(struct btrfs_workq
 void btrfs_destroy_workqueue(struct btrfs_workqueue *wq);
 void btrfs_workqueue_set_max(struct btrfs_workqueue *wq, int max);
 void btrfs_set_work_high_priority(struct btrfs_work *work);
+bool btrfs_workqueue_normal_congested(struct btrfs_workqueue *wq);
 #endif
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/btrfs/backref.c linux-libre-4.4.107-gnu/fs/btrfs/backref.c
--- linux-libre-4.4-gnu/fs/btrfs/backref.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/btrfs/backref.c	2017-12-20 04:05:01.000000000 -0500
@@ -1417,7 +1417,8 @@ char *btrfs_ref_to_path(struct btrfs_roo
 			read_extent_buffer(eb, dest + bytes_left,
 					   name_off, name_len);
 		if (eb != eb_in) {
-			btrfs_tree_read_unlock_blocking(eb);
+			if (!path->skip_locking)
+				btrfs_tree_read_unlock_blocking(eb);
 			free_extent_buffer(eb);
 		}
 		ret = btrfs_find_item(fs_root, path, parent, 0,
@@ -1437,9 +1438,10 @@ char *btrfs_ref_to_path(struct btrfs_roo
 		eb = path->nodes[0];
 		/* make sure we can use eb after releasing the path */
 		if (eb != eb_in) {
-			atomic_inc(&eb->refs);
-			btrfs_tree_read_lock(eb);
-			btrfs_set_lock_blocking_rw(eb, BTRFS_READ_LOCK);
+			if (!path->skip_locking)
+				btrfs_set_lock_blocking_rw(eb, BTRFS_READ_LOCK);
+			path->nodes[0] = NULL;
+			path->locks[0] = 0;
 		}
 		btrfs_release_path(path);
 		iref = btrfs_item_ptr(eb, slot, struct btrfs_inode_ref);
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/btrfs/compression.c linux-libre-4.4.107-gnu/fs/btrfs/compression.c
--- linux-libre-4.4-gnu/fs/btrfs/compression.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/btrfs/compression.c	2017-12-20 04:05:01.000000000 -0500
@@ -694,7 +694,7 @@ int btrfs_submit_compressed_read(struct
 			ret = btrfs_map_bio(root, READ, comp_bio,
 					    mirror_num, 0);
 			if (ret) {
-				bio->bi_error = ret;
+				comp_bio->bi_error = ret;
 				bio_endio(comp_bio);
 			}
 
@@ -723,7 +723,7 @@ int btrfs_submit_compressed_read(struct
 
 	ret = btrfs_map_bio(root, READ, comp_bio, mirror_num, 0);
 	if (ret) {
-		bio->bi_error = ret;
+		comp_bio->bi_error = ret;
 		bio_endio(comp_bio);
 	}
 
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/btrfs/ctree.c linux-libre-4.4.107-gnu/fs/btrfs/ctree.c
--- linux-libre-4.4-gnu/fs/btrfs/ctree.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/btrfs/ctree.c	2017-12-20 04:05:01.000000000 -0500
@@ -1551,6 +1551,7 @@ noinline int btrfs_cow_block(struct btrf
 		       trans->transid, root->fs_info->generation);
 
 	if (!should_cow_block(trans, root, buf)) {
+		trans->dirty = true;
 		*cow_ret = buf;
 		return 0;
 	}
@@ -2773,8 +2774,10 @@ again:
 			 * then we don't want to set the path blocking,
 			 * so we test it here
 			 */
-			if (!should_cow_block(trans, root, b))
+			if (!should_cow_block(trans, root, b)) {
+				trans->dirty = true;
 				goto cow_done;
+			}
 
 			/*
 			 * must have write locks on this node and the
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/btrfs/ctree.h linux-libre-4.4.107-gnu/fs/btrfs/ctree.h
--- linux-libre-4.4-gnu/fs/btrfs/ctree.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/btrfs/ctree.h	2017-12-20 04:05:01.000000000 -0500
@@ -1572,7 +1572,7 @@ struct btrfs_fs_info {
 
 	spinlock_t delayed_iput_lock;
 	struct list_head delayed_iputs;
-	struct rw_semaphore delayed_iput_sem;
+	struct mutex cleaner_delayed_iput_mutex;
 
 	/* this protects tree_mod_seq_list */
 	spinlock_t tree_mod_seq_lock;
@@ -1770,6 +1770,7 @@ struct btrfs_fs_info {
 	struct btrfs_workqueue *qgroup_rescan_workers;
 	struct completion qgroup_rescan_completion;
 	struct btrfs_work qgroup_rescan_work;
+	bool qgroup_rescan_running;	/* protected by qgroup_rescan_lock */
 
 	/* filesystem state */
 	unsigned long fs_state;
@@ -3069,6 +3070,8 @@ btrfs_disk_balance_args_to_cpu(struct bt
 	cpu->target = le64_to_cpu(disk->target);
 	cpu->flags = le64_to_cpu(disk->flags);
 	cpu->limit = le64_to_cpu(disk->limit);
+	cpu->stripes_min = le32_to_cpu(disk->stripes_min);
+	cpu->stripes_max = le32_to_cpu(disk->stripes_max);
 }
 
 static inline void
@@ -3087,6 +3090,8 @@ btrfs_cpu_balance_args_to_disk(struct bt
 	disk->target = cpu_to_le64(cpu->target);
 	disk->flags = cpu_to_le64(cpu->flags);
 	disk->limit = cpu_to_le64(cpu->limit);
+	disk->stripes_min = cpu_to_le32(cpu->stripes_min);
+	disk->stripes_max = cpu_to_le32(cpu->stripes_max);
 }
 
 /* struct btrfs_super_block */
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/btrfs/delayed-inode.c linux-libre-4.4.107-gnu/fs/btrfs/delayed-inode.c
--- linux-libre-4.4-gnu/fs/btrfs/delayed-inode.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/btrfs/delayed-inode.c	2017-12-20 04:05:01.000000000 -0500
@@ -1375,7 +1375,8 @@ release_path:
 	total_done++;
 
 	btrfs_release_prepared_delayed_node(delayed_node);
-	if (async_work->nr == 0 || total_done < async_work->nr)
+	if ((async_work->nr == 0 && total_done < BTRFS_DELAYED_WRITEBACK) ||
+	    total_done < async_work->nr)
 		goto again;
 
 free_path:
@@ -1391,7 +1392,8 @@ static int btrfs_wq_run_delayed_node(str
 {
 	struct btrfs_async_delayed_work *async_work;
 
-	if (atomic_read(&delayed_root->items) < BTRFS_DELAYED_BACKGROUND)
+	if (atomic_read(&delayed_root->items) < BTRFS_DELAYED_BACKGROUND ||
+	    btrfs_workqueue_normal_congested(fs_info->delayed_workers))
 		return 0;
 
 	async_work = kmalloc(sizeof(*async_work), GFP_NOFS);
@@ -1694,7 +1696,7 @@ int btrfs_should_delete_dir_index(struct
  *
  */
 int btrfs_readdir_delayed_dir_index(struct dir_context *ctx,
-				    struct list_head *ins_list)
+				    struct list_head *ins_list, bool *emitted)
 {
 	struct btrfs_dir_item *di;
 	struct btrfs_delayed_item *curr, *next;
@@ -1738,6 +1740,7 @@ int btrfs_readdir_delayed_dir_index(stru
 
 		if (over)
 			return 1;
+		*emitted = true;
 	}
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/btrfs/delayed-inode.h linux-libre-4.4.107-gnu/fs/btrfs/delayed-inode.h
--- linux-libre-4.4-gnu/fs/btrfs/delayed-inode.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/btrfs/delayed-inode.h	2017-12-20 04:05:01.000000000 -0500
@@ -144,7 +144,7 @@ void btrfs_put_delayed_items(struct list
 int btrfs_should_delete_dir_index(struct list_head *del_list,
 				  u64 index);
 int btrfs_readdir_delayed_dir_index(struct dir_context *ctx,
-				    struct list_head *ins_list);
+				    struct list_head *ins_list, bool *emitted);
 
 /* for init */
 int __init btrfs_delayed_inode_init(void);
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/btrfs/disk-io.c linux-libre-4.4.107-gnu/fs/btrfs/disk-io.c
--- linux-libre-4.4-gnu/fs/btrfs/disk-io.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/btrfs/disk-io.c	2017-12-20 04:05:01.000000000 -0500
@@ -1582,8 +1582,23 @@ int btrfs_init_fs_root(struct btrfs_root
 	ret = get_anon_bdev(&root->anon_dev);
 	if (ret)
 		goto free_writers;
+
+	mutex_lock(&root->objectid_mutex);
+	ret = btrfs_find_highest_objectid(root,
+					&root->highest_objectid);
+	if (ret) {
+		mutex_unlock(&root->objectid_mutex);
+		goto free_root_dev;
+	}
+
+	ASSERT(root->highest_objectid <= BTRFS_LAST_FREE_OBJECTID);
+
+	mutex_unlock(&root->objectid_mutex);
+
 	return 0;
 
+free_root_dev:
+	free_anon_bdev(root->anon_dev);
 free_writers:
 	btrfs_free_subvolume_writers(root->subv_writers);
 fail:
@@ -1762,7 +1777,6 @@ static int cleaner_kthread(void *arg)
 	int again;
 	struct btrfs_trans_handle *trans;
 
-	set_freezable();
 	do {
 		again = 0;
 
@@ -1782,7 +1796,10 @@ static int cleaner_kthread(void *arg)
 			goto sleep;
 		}
 
+		mutex_lock(&root->fs_info->cleaner_delayed_iput_mutex);
 		btrfs_run_delayed_iputs(root);
+		mutex_unlock(&root->fs_info->cleaner_delayed_iput_mutex);
+
 		again = btrfs_clean_one_deleted_snapshot(root);
 		mutex_unlock(&root->fs_info->cleaner_mutex);
 
@@ -2259,6 +2276,7 @@ static void btrfs_init_qgroup(struct btr
 	fs_info->quota_enabled = 0;
 	fs_info->pending_quota_state = 0;
 	fs_info->qgroup_ulist = NULL;
+	fs_info->qgroup_rescan_running = false;
 	mutex_init(&fs_info->qgroup_rescan_lock);
 }
 
@@ -2542,8 +2560,8 @@ int open_ctree(struct super_block *sb,
 	mutex_init(&fs_info->delete_unused_bgs_mutex);
 	mutex_init(&fs_info->reloc_mutex);
 	mutex_init(&fs_info->delalloc_root_mutex);
+	mutex_init(&fs_info->cleaner_delayed_iput_mutex);
 	seqlock_init(&fs_info->profiles_lock);
-	init_rwsem(&fs_info->delayed_iput_sem);
 
 	INIT_LIST_HEAD(&fs_info->dirty_cowonly_roots);
 	INIT_LIST_HEAD(&fs_info->space_info);
@@ -2668,6 +2686,7 @@ int open_ctree(struct super_block *sb,
 	if (btrfs_check_super_csum(bh->b_data)) {
 		printk(KERN_ERR "BTRFS: superblock checksum mismatch\n");
 		err = -EINVAL;
+		brelse(bh);
 		goto fail_alloc;
 	}
 
@@ -2900,6 +2919,18 @@ retry_root_backup:
 	tree_root->commit_root = btrfs_root_node(tree_root);
 	btrfs_set_root_refs(&tree_root->root_item, 1);
 
+	mutex_lock(&tree_root->objectid_mutex);
+	ret = btrfs_find_highest_objectid(tree_root,
+					&tree_root->highest_objectid);
+	if (ret) {
+		mutex_unlock(&tree_root->objectid_mutex);
+		goto recovery_tree_root;
+	}
+
+	ASSERT(tree_root->highest_objectid <= BTRFS_LAST_FREE_OBJECTID);
+
+	mutex_unlock(&tree_root->objectid_mutex);
+
 	ret = btrfs_read_roots(fs_info, tree_root);
 	if (ret)
 		goto recovery_tree_root;
@@ -3781,7 +3812,7 @@ void close_ctree(struct btrfs_root *root
 	smp_mb();
 
 	/* wait for the qgroup rescan worker to stop */
-	btrfs_qgroup_wait_for_completion(fs_info);
+	btrfs_qgroup_wait_for_completion(fs_info, false);
 
 	/* wait for the uuid_scan task to finish */
 	down(&fs_info->uuid_tree_rescan_sem);
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/btrfs/extent_io.c linux-libre-4.4.107-gnu/fs/btrfs/extent_io.c
--- linux-libre-4.4-gnu/fs/btrfs/extent_io.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/btrfs/extent_io.c	2017-12-20 04:05:01.000000000 -0500
@@ -2786,12 +2786,6 @@ struct bio *btrfs_bio_clone(struct bio *
 		btrfs_bio->csum = NULL;
 		btrfs_bio->csum_allocated = NULL;
 		btrfs_bio->end_io = NULL;
-
-#ifdef CONFIG_BLK_CGROUP
-		/* FIXME, put this into bio_clone_bioset */
-		if (bio->bi_css)
-			bio_associate_blkcg(new, bio->bi_css);
-#endif
 	}
 	return new;
 }
@@ -5300,11 +5294,20 @@ int read_extent_buffer_pages(struct exte
 			lock_page(page);
 		}
 		locked_pages++;
+	}
+	/*
+	 * We need to firstly lock all pages to make sure that
+	 * the uptodate bit of our pages won't be affected by
+	 * clear_extent_buffer_uptodate().
+	 */
+	for (i = start_i; i < num_pages; i++) {
+		page = eb->pages[i];
 		if (!PageUptodate(page)) {
 			num_reads++;
 			all_uptodate = 0;
 		}
 	}
+
 	if (all_uptodate) {
 		if (start_i == 0)
 			set_bit(EXTENT_BUFFER_UPTODATE, &eb->bflags);
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/btrfs/extent-tree.c linux-libre-4.4.107-gnu/fs/btrfs/extent-tree.c
--- linux-libre-4.4-gnu/fs/btrfs/extent-tree.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/btrfs/extent-tree.c	2017-12-20 04:05:01.000000000 -0500
@@ -2520,11 +2520,11 @@ static noinline int __btrfs_run_delayed_
 		if (ref && ref->seq &&
 		    btrfs_check_delayed_seq(fs_info, delayed_refs, ref->seq)) {
 			spin_unlock(&locked_ref->lock);
-			btrfs_delayed_ref_unlock(locked_ref);
 			spin_lock(&delayed_refs->lock);
 			locked_ref->processing = 0;
 			delayed_refs->num_heads_ready++;
 			spin_unlock(&delayed_refs->lock);
+			btrfs_delayed_ref_unlock(locked_ref);
 			locked_ref = NULL;
 			cond_resched();
 			count++;
@@ -2570,7 +2570,10 @@ static noinline int __btrfs_run_delayed_
 					 */
 					if (must_insert_reserved)
 						locked_ref->must_insert_reserved = 1;
+					spin_lock(&delayed_refs->lock);
 					locked_ref->processing = 0;
+					delayed_refs->num_heads_ready++;
+					spin_unlock(&delayed_refs->lock);
 					btrfs_debug(fs_info, "run_delayed_extent_op returned %d", ret);
 					btrfs_delayed_ref_unlock(locked_ref);
 					return ret;
@@ -3358,13 +3361,6 @@ again:
 		goto again;
 	}
 
-	/* We've already setup this transaction, go ahead and exit */
-	if (block_group->cache_generation == trans->transid &&
-	    i_size_read(inode)) {
-		dcs = BTRFS_DC_SETUP;
-		goto out_put;
-	}
-
 	/*
 	 * We want to set the generation to 0, that way if anything goes wrong
 	 * from here on out we know not to trust this cache when we load up next
@@ -3388,6 +3384,13 @@ again:
 	}
 	WARN_ON(ret);
 
+	/* We've already setup this transaction, go ahead and exit */
+	if (block_group->cache_generation == trans->transid &&
+	    i_size_read(inode)) {
+		dcs = BTRFS_DC_SETUP;
+		goto out_put;
+	}
+
 	if (i_size_read(inode) > 0) {
 		ret = btrfs_check_trunc_cache_free_space(root,
 					&root->fs_info->global_block_rsv);
@@ -3851,6 +3854,7 @@ static int update_space_info(struct btrf
 				    info->space_info_kobj, "%s",
 				    alloc_name(found->flags));
 	if (ret) {
+		percpu_counter_destroy(&found->total_bytes_pinned);
 		kfree(found);
 		return ret;
 	}
@@ -4086,8 +4090,10 @@ commit_trans:
 		    !atomic_read(&root->fs_info->open_ioctl_trans)) {
 			need_commit--;
 
-			if (need_commit > 0)
+			if (need_commit > 0) {
+				btrfs_start_delalloc_roots(fs_info, 0, -1);
 				btrfs_wait_ordered_roots(fs_info, -1);
+			}
 
 			trans = btrfs_join_transaction(root);
 			if (IS_ERR(trans))
@@ -4100,11 +4106,12 @@ commit_trans:
 				if (ret)
 					return ret;
 				/*
-				 * make sure that all running delayed iput are
-				 * done
+				 * The cleaner kthread might still be doing iput
+				 * operations. Wait for it to finish so that
+				 * more space is released.
 				 */
-				down_write(&root->fs_info->delayed_iput_sem);
-				up_write(&root->fs_info->delayed_iput_sem);
+				mutex_lock(&root->fs_info->cleaner_delayed_iput_mutex);
+				mutex_unlock(&root->fs_info->cleaner_delayed_iput_mutex);
 				goto again;
 			} else {
 				btrfs_end_transaction(trans, root);
@@ -7853,7 +7860,7 @@ btrfs_init_new_buffer(struct btrfs_trans
 		set_extent_dirty(&trans->transaction->dirty_pages, buf->start,
 			 buf->start + buf->len - 1, GFP_NOFS);
 	}
-	trans->blocks_used++;
+	trans->dirty = true;
 	/* this returns a buffer locked for blocking */
 	return buf;
 }
@@ -8483,14 +8490,13 @@ static noinline int do_walk_down(struct
 	ret = btrfs_lookup_extent_info(trans, root, bytenr, level - 1, 1,
 				       &wc->refs[level - 1],
 				       &wc->flags[level - 1]);
-	if (ret < 0) {
-		btrfs_tree_unlock(next);
-		return ret;
-	}
+	if (ret < 0)
+		goto out_unlock;
 
 	if (unlikely(wc->refs[level - 1] == 0)) {
 		btrfs_err(root->fs_info, "Missing references.");
-		BUG();
+		ret = -EIO;
+		goto out_unlock;
 	}
 	*lookup_info = 0;
 
@@ -8542,7 +8548,12 @@ static noinline int do_walk_down(struct
 	}
 
 	level--;
-	BUG_ON(level != btrfs_header_level(next));
+	ASSERT(level == btrfs_header_level(next));
+	if (level != btrfs_header_level(next)) {
+		btrfs_err(root->fs_info, "mismatched level");
+		ret = -EIO;
+		goto out_unlock;
+	}
 	path->nodes[level] = next;
 	path->slots[level] = 0;
 	path->locks[level] = BTRFS_WRITE_LOCK_BLOCKING;
@@ -8557,8 +8568,15 @@ skip:
 		if (wc->flags[level] & BTRFS_BLOCK_FLAG_FULL_BACKREF) {
 			parent = path->nodes[level]->start;
 		} else {
-			BUG_ON(root->root_key.objectid !=
+			ASSERT(root->root_key.objectid ==
 			       btrfs_header_owner(path->nodes[level]));
+			if (root->root_key.objectid !=
+			    btrfs_header_owner(path->nodes[level])) {
+				btrfs_err(root->fs_info,
+						"mismatched block owner");
+				ret = -EIO;
+				goto out_unlock;
+			}
 			parent = 0;
 		}
 
@@ -8575,12 +8593,18 @@ skip:
 		}
 		ret = btrfs_free_extent(trans, root, bytenr, blocksize, parent,
 				root->root_key.objectid, level - 1, 0);
-		BUG_ON(ret); /* -ENOMEM */
+		if (ret)
+			goto out_unlock;
 	}
+
+	*lookup_info = 1;
+	ret = 1;
+
+out_unlock:
 	btrfs_tree_unlock(next);
 	free_extent_buffer(next);
-	*lookup_info = 1;
-	return 1;
+
+	return ret;
 }
 
 /*
@@ -9683,6 +9707,11 @@ int btrfs_read_block_groups(struct btrfs
 	struct extent_buffer *leaf;
 	int need_clear = 0;
 	u64 cache_gen;
+	u64 feature;
+	int mixed;
+
+	feature = btrfs_super_incompat_flags(info->super_copy);
+	mixed = !!(feature & BTRFS_FEATURE_INCOMPAT_MIXED_GROUPS);
 
 	root = info->extent_root;
 	key.objectid = 0;
@@ -9736,6 +9765,15 @@ int btrfs_read_block_groups(struct btrfs
 				   btrfs_item_ptr_offset(leaf, path->slots[0]),
 				   sizeof(cache->item));
 		cache->flags = btrfs_block_group_flags(&cache->item);
+		if (!mixed &&
+		    ((cache->flags & BTRFS_BLOCK_GROUP_METADATA) &&
+		    (cache->flags & BTRFS_BLOCK_GROUP_DATA))) {
+			btrfs_err(info,
+"bg %llu is a mixed block group but filesystem hasn't enabled mixed block groups",
+				  cache->key.objectid);
+			ret = -EINVAL;
+			goto error;
+		}
 
 		key.objectid = found_key.objectid + found_key.offset;
 		btrfs_release_path(path);
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/btrfs/file.c linux-libre-4.4.107-gnu/fs/btrfs/file.c
--- linux-libre-4.4-gnu/fs/btrfs/file.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/btrfs/file.c	2017-12-20 04:05:01.000000000 -0500
@@ -1526,27 +1526,24 @@ static noinline ssize_t __btrfs_buffered
 
 		reserve_bytes = num_pages << PAGE_CACHE_SHIFT;
 
-		if (BTRFS_I(inode)->flags & (BTRFS_INODE_NODATACOW |
-					     BTRFS_INODE_PREALLOC)) {
-			ret = check_can_nocow(inode, pos, &write_bytes);
-			if (ret < 0)
-				break;
-			if (ret > 0) {
-				/*
-				 * For nodata cow case, no need to reserve
-				 * data space.
-				 */
-				only_release_metadata = true;
-				/*
-				 * our prealloc extent may be smaller than
-				 * write_bytes, so scale down.
-				 */
-				num_pages = DIV_ROUND_UP(write_bytes + offset,
-							 PAGE_CACHE_SIZE);
-				reserve_bytes = num_pages << PAGE_CACHE_SHIFT;
-				goto reserve_metadata;
-			}
+		if ((BTRFS_I(inode)->flags & (BTRFS_INODE_NODATACOW |
+					      BTRFS_INODE_PREALLOC)) &&
+		    check_can_nocow(inode, pos, &write_bytes) > 0) {
+			/*
+			 * For nodata cow case, no need to reserve
+			 * data space.
+			 */
+			only_release_metadata = true;
+			/*
+			 * our prealloc extent may be smaller than
+			 * write_bytes, so scale down.
+			 */
+			num_pages = DIV_ROUND_UP(write_bytes + offset,
+						 PAGE_CACHE_SIZE);
+			reserve_bytes = num_pages << PAGE_CACHE_SHIFT;
+			goto reserve_metadata;
 		}
+
 		ret = btrfs_check_data_free_space(inode, pos, write_bytes);
 		if (ret < 0)
 			break;
@@ -1885,7 +1882,7 @@ static int start_ordered_ops(struct inod
  */
 int btrfs_sync_file(struct file *file, loff_t start, loff_t end, int datasync)
 {
-	struct dentry *dentry = file->f_path.dentry;
+	struct dentry *dentry = file_dentry(file);
 	struct inode *inode = d_inode(dentry);
 	struct btrfs_root *root = BTRFS_I(inode)->root;
 	struct btrfs_trans_handle *trans;
@@ -2774,7 +2771,7 @@ static long btrfs_fallocate(struct file
 		if (!ret)
 			ret = btrfs_prealloc_file_range(inode, mode,
 					range->start,
-					range->len, 1 << inode->i_blkbits,
+					range->len, i_blocksize(inode),
 					offset + len, &alloc_hint);
 		list_del(&range->list);
 		kfree(range);
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/btrfs/inode.c linux-libre-4.4.107-gnu/fs/btrfs/inode.c
--- linux-libre-4.4-gnu/fs/btrfs/inode.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/btrfs/inode.c	2017-12-20 04:05:01.000000000 -0500
@@ -3142,8 +3142,6 @@ void btrfs_run_delayed_iputs(struct btrf
 	if (empty)
 		return;
 
-	down_read(&fs_info->delayed_iput_sem);
-
 	spin_lock(&fs_info->delayed_iput_lock);
 	list_splice_init(&fs_info->delayed_iputs, &list);
 	spin_unlock(&fs_info->delayed_iput_lock);
@@ -3154,8 +3152,6 @@ void btrfs_run_delayed_iputs(struct btrf
 		iput(delayed->inode);
 		kfree(delayed);
 	}
-
-	up_read(&root->fs_info->delayed_iput_sem);
 }
 
 /*
@@ -4401,8 +4397,19 @@ search_again:
 		if (found_type > min_type) {
 			del_item = 1;
 		} else {
-			if (item_end < new_size)
+			if (item_end < new_size) {
+				/*
+				 * With NO_HOLES mode, for the following mapping
+				 *
+				 * [0-4k][hole][8k-12k]
+				 *
+				 * if truncating isize down to 6k, it ends up
+				 * isize being 8k.
+				 */
+				if (btrfs_fs_incompat(root->fs_info, NO_HOLES))
+					last_size = new_size;
 				break;
+			}
 			if (found_key.offset >= new_size)
 				del_item = 1;
 			else
@@ -5741,6 +5748,7 @@ static int btrfs_real_readdir(struct fil
 	char *name_ptr;
 	int name_len;
 	int is_curr = 0;	/* ctx->pos points to the current index? */
+	bool emitted;
 
 	/* FIXME, use a real flag for deciding about the key type */
 	if (root->fs_info->tree_root == root)
@@ -5769,6 +5777,7 @@ static int btrfs_real_readdir(struct fil
 	if (ret < 0)
 		goto err;
 
+	emitted = false;
 	while (1) {
 		leaf = path->nodes[0];
 		slot = path->slots[0];
@@ -5848,6 +5857,7 @@ skip:
 
 			if (over)
 				goto nopos;
+			emitted = true;
 			di_len = btrfs_dir_name_len(leaf, di) +
 				 btrfs_dir_data_len(leaf, di) + sizeof(*di);
 			di_cur += di_len;
@@ -5860,11 +5870,20 @@ next:
 	if (key_type == BTRFS_DIR_INDEX_KEY) {
 		if (is_curr)
 			ctx->pos++;
-		ret = btrfs_readdir_delayed_dir_index(ctx, &ins_list);
+		ret = btrfs_readdir_delayed_dir_index(ctx, &ins_list, &emitted);
 		if (ret)
 			goto nopos;
 	}
 
+	/*
+	 * If we haven't emitted any dir entry, we must not touch ctx->pos as
+	 * it was was set to the termination value in previous call. We assume
+	 * that "." and ".." were emitted if we reach this point and set the
+	 * termination value as well for an empty directory.
+	 */
+	if (ctx->pos > 2 && !emitted)
+		goto nopos;
+
 	/* Reached end of directory/root. Bump pos past the last item. */
 	ctx->pos++;
 
@@ -6481,7 +6500,7 @@ out_unlock_inode:
 static int btrfs_link(struct dentry *old_dentry, struct inode *dir,
 		      struct dentry *dentry)
 {
-	struct btrfs_trans_handle *trans;
+	struct btrfs_trans_handle *trans = NULL;
 	struct btrfs_root *root = BTRFS_I(dir)->root;
 	struct inode *inode = d_inode(old_dentry);
 	u64 index;
@@ -6507,6 +6526,7 @@ static int btrfs_link(struct dentry *old
 	trans = btrfs_start_transaction(root, 5);
 	if (IS_ERR(trans)) {
 		err = PTR_ERR(trans);
+		trans = NULL;
 		goto fail;
 	}
 
@@ -6540,9 +6560,10 @@ static int btrfs_link(struct dentry *old
 		btrfs_log_new_name(trans, inode, NULL, parent);
 	}
 
-	btrfs_end_transaction(trans, root);
 	btrfs_balance_delayed_items(root);
 fail:
+	if (trans)
+		btrfs_end_transaction(trans, root);
 	if (drop_inode) {
 		inode_dec_link_count(inode);
 		iput(inode);
@@ -6714,6 +6735,20 @@ static noinline int uncompress_inline(st
 	max_size = min_t(unsigned long, PAGE_CACHE_SIZE, max_size);
 	ret = btrfs_decompress(compress_type, tmp, page,
 			       extent_offset, inline_size, max_size);
+
+	/*
+	 * decompression code contains a memset to fill in any space between the end
+	 * of the uncompressed data and the end of max_size in case the decompressed
+	 * data ends up shorter than ram_bytes.  That doesn't cover the hole between
+	 * the end of an inline extent and the beginning of the next block, so we
+	 * cover that region here.
+	 */
+
+	if (max_size + pg_offset < PAGE_SIZE) {
+		char *map = kmap(page);
+		memset(map + pg_offset + max_size, 0, PAGE_SIZE - max_size - pg_offset);
+		kunmap(page);
+	}
 	kfree(tmp);
 	return ret;
 }
@@ -7308,8 +7343,8 @@ bool btrfs_page_exists_in_range(struct i
 	int found = false;
 	void **pagep = NULL;
 	struct page *page = NULL;
-	int start_idx;
-	int end_idx;
+	unsigned long start_idx;
+	unsigned long end_idx;
 
 	start_idx = start >> PAGE_CACHE_SHIFT;
 
@@ -7500,11 +7535,18 @@ static void adjust_dio_outstanding_exten
 	 * within our reservation, otherwise we need to adjust our inode
 	 * counter appropriately.
 	 */
-	if (dio_data->outstanding_extents) {
+	if (dio_data->outstanding_extents >= num_extents) {
 		dio_data->outstanding_extents -= num_extents;
 	} else {
+		/*
+		 * If dio write length has been split due to no large enough
+		 * contiguous space, we need to compensate our inode counter
+		 * appropriately.
+		 */
+		u64 num_needed = num_extents - dio_data->outstanding_extents;
+
 		spin_lock(&BTRFS_I(inode)->lock);
-		BTRFS_I(inode)->outstanding_extents += num_extents;
+		BTRFS_I(inode)->outstanding_extents += num_needed;
 		spin_unlock(&BTRFS_I(inode)->lock);
 	}
 }
@@ -7985,6 +8027,7 @@ static void btrfs_endio_direct_read(stru
 
 	kfree(dip);
 
+	dio_bio->bi_error = bio->bi_error;
 	dio_end_io(dio_bio, bio->bi_error);
 
 	if (io_bio->end_io)
@@ -8030,6 +8073,7 @@ out_test:
 
 	kfree(dip);
 
+	dio_bio->bi_error = bio->bi_error;
 	dio_end_io(dio_bio, bio->bi_error);
 	bio_put(bio);
 }
@@ -8534,15 +8578,28 @@ int btrfs_readpage(struct file *file, st
 static int btrfs_writepage(struct page *page, struct writeback_control *wbc)
 {
 	struct extent_io_tree *tree;
-
+	struct inode *inode = page->mapping->host;
+	int ret;
 
 	if (current->flags & PF_MEMALLOC) {
 		redirty_page_for_writepage(wbc, page);
 		unlock_page(page);
 		return 0;
 	}
+
+	/*
+	 * If we are under memory pressure we will call this directly from the
+	 * VM, we need to make sure we have the inode referenced for the ordered
+	 * extent.  If not just return like we didn't do anything.
+	 */
+	if (!igrab(inode)) {
+		redirty_page_for_writepage(wbc, page);
+		return AOP_WRITEPAGE_ACTIVATE;
+	}
 	tree = &BTRFS_I(page->mapping->host)->io_tree;
-	return extent_write_full_page(tree, page, btrfs_get_extent, wbc);
+	ret = extent_write_full_page(tree, page, btrfs_get_extent, wbc);
+	btrfs_add_delayed_iput(inode);
+	return ret;
 }
 
 static int btrfs_writepages(struct address_space *mapping,
@@ -8666,9 +8723,14 @@ static void btrfs_invalidatepage(struct
 	 *    So even we call qgroup_free_data(), it won't decrease reserved
 	 *    space.
 	 * 2) Not written to disk
-	 *    This means the reserved space should be freed here.
+	 *    This means the reserved space should be freed here. However,
+	 *    if a truncate invalidates the page (by clearing PageDirty)
+	 *    and the page is accounted for while allocating extent
+	 *    in btrfs_check_data_free_space() we let delayed_ref to
+	 *    free the entire extent.
 	 */
-	btrfs_qgroup_free_data(inode, page_start, PAGE_CACHE_SIZE);
+	if (PageDirty(page))
+		btrfs_qgroup_free_data(inode, page_start, PAGE_SIZE);
 	if (!inode_evicting) {
 		clear_extent_bit(tree, page_start, page_end,
 				 EXTENT_LOCKED | EXTENT_DIRTY |
@@ -9636,9 +9698,11 @@ static int btrfs_symlink(struct inode *d
 	/*
 	 * 2 items for inode item and ref
 	 * 2 items for dir items
+	 * 1 item for updating parent inode item
+	 * 1 item for the inline extent item
 	 * 1 item for xattr if selinux is on
 	 */
-	trans = btrfs_start_transaction(root, 5);
+	trans = btrfs_start_transaction(root, 7);
 	if (IS_ERR(trans))
 		return PTR_ERR(trans);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/btrfs/inode-map.c linux-libre-4.4.107-gnu/fs/btrfs/inode-map.c
--- linux-libre-4.4-gnu/fs/btrfs/inode-map.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/btrfs/inode-map.c	2017-12-20 04:05:01.000000000 -0500
@@ -515,7 +515,7 @@ out:
 	return ret;
 }
 
-static int btrfs_find_highest_objectid(struct btrfs_root *root, u64 *objectid)
+int btrfs_find_highest_objectid(struct btrfs_root *root, u64 *objectid)
 {
 	struct btrfs_path *path;
 	int ret;
@@ -555,13 +555,6 @@ int btrfs_find_free_objectid(struct btrf
 	int ret;
 	mutex_lock(&root->objectid_mutex);
 
-	if (unlikely(root->highest_objectid < BTRFS_FIRST_FREE_OBJECTID)) {
-		ret = btrfs_find_highest_objectid(root,
-						  &root->highest_objectid);
-		if (ret)
-			goto out;
-	}
-
 	if (unlikely(root->highest_objectid >= BTRFS_LAST_FREE_OBJECTID)) {
 		ret = -ENOSPC;
 		goto out;
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/btrfs/inode-map.h linux-libre-4.4.107-gnu/fs/btrfs/inode-map.h
--- linux-libre-4.4-gnu/fs/btrfs/inode-map.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/btrfs/inode-map.h	2017-12-20 04:05:01.000000000 -0500
@@ -9,5 +9,6 @@ int btrfs_save_ino_cache(struct btrfs_ro
 			 struct btrfs_trans_handle *trans);
 
 int btrfs_find_free_objectid(struct btrfs_root *root, u64 *objectid);
+int btrfs_find_highest_objectid(struct btrfs_root *root, u64 *objectid);
 
 #endif
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/btrfs/ioctl.c linux-libre-4.4.107-gnu/fs/btrfs/ioctl.c
--- linux-libre-4.4-gnu/fs/btrfs/ioctl.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/btrfs/ioctl.c	2017-12-20 04:05:01.000000000 -0500
@@ -568,6 +568,10 @@ static noinline int create_subvol(struct
 		goto fail;
 	}
 
+	mutex_lock(&new_root->objectid_mutex);
+	new_root->highest_objectid = new_dirid;
+	mutex_unlock(&new_root->objectid_mutex);
+
 	/*
 	 * insert the directory item
 	 */
@@ -1615,6 +1619,9 @@ static noinline int btrfs_ioctl_snap_cre
 	int namelen;
 	int ret = 0;
 
+	if (!S_ISDIR(file_inode(file)->i_mode))
+		return -ENOTDIR;
+
 	ret = mnt_want_write_file(file);
 	if (ret)
 		goto out;
@@ -1644,7 +1651,7 @@ static noinline int btrfs_ioctl_snap_cre
 
 		src_inode = file_inode(src.file);
 		if (src_inode->i_sb != file_inode(file)->i_sb) {
-			btrfs_info(BTRFS_I(src_inode)->root->fs_info,
+			btrfs_info(BTRFS_I(file_inode(file))->root->fs_info,
 				   "Snapshot src from another FS");
 			ret = -EXDEV;
 		} else if (!inode_owner_or_capable(src_inode)) {
@@ -1672,6 +1679,9 @@ static noinline int btrfs_ioctl_snap_cre
 	struct btrfs_ioctl_vol_args *vol_args;
 	int ret;
 
+	if (!S_ISDIR(file_inode(file)->i_mode))
+		return -ENOTDIR;
+
 	vol_args = memdup_user(arg, sizeof(*vol_args));
 	if (IS_ERR(vol_args))
 		return PTR_ERR(vol_args);
@@ -1695,6 +1705,9 @@ static noinline int btrfs_ioctl_snap_cre
 	bool readonly = false;
 	struct btrfs_qgroup_inherit *inherit = NULL;
 
+	if (!S_ISDIR(file_inode(file)->i_mode))
+		return -ENOTDIR;
+
 	vol_args = memdup_user(arg, sizeof(*vol_args));
 	if (IS_ERR(vol_args))
 		return PTR_ERR(vol_args);
@@ -2341,6 +2354,9 @@ static noinline int btrfs_ioctl_snap_des
 	int ret;
 	int err = 0;
 
+	if (!S_ISDIR(dir->i_mode))
+		return -ENOTDIR;
+
 	vol_args = memdup_user(arg, sizeof(*vol_args));
 	if (IS_ERR(vol_args))
 		return PTR_ERR(vol_args);
@@ -2782,24 +2798,29 @@ out:
 static struct page *extent_same_get_page(struct inode *inode, pgoff_t index)
 {
 	struct page *page;
-	struct extent_io_tree *tree = &BTRFS_I(inode)->io_tree;
 
 	page = grab_cache_page(inode->i_mapping, index);
 	if (!page)
-		return NULL;
+		return ERR_PTR(-ENOMEM);
 
 	if (!PageUptodate(page)) {
-		if (extent_read_full_page_nolock(tree, page, btrfs_get_extent,
-						 0))
-			return NULL;
+		int ret;
+
+		ret = btrfs_readpage(NULL, page);
+		if (ret)
+			return ERR_PTR(ret);
 		lock_page(page);
 		if (!PageUptodate(page)) {
 			unlock_page(page);
 			page_cache_release(page);
-			return NULL;
+			return ERR_PTR(-EIO);
+		}
+		if (page->mapping != inode->i_mapping) {
+			unlock_page(page);
+			page_cache_release(page);
+			return ERR_PTR(-EAGAIN);
 		}
 	}
-	unlock_page(page);
 
 	return page;
 }
@@ -2811,17 +2832,31 @@ static int gather_extent_pages(struct in
 	pgoff_t index = off >> PAGE_CACHE_SHIFT;
 
 	for (i = 0; i < num_pages; i++) {
+again:
 		pages[i] = extent_same_get_page(inode, index + i);
-		if (!pages[i])
-			return -ENOMEM;
+		if (IS_ERR(pages[i])) {
+			int err = PTR_ERR(pages[i]);
+
+			if (err == -EAGAIN)
+				goto again;
+			pages[i] = NULL;
+			return err;
+		}
 	}
 	return 0;
 }
 
-static inline void lock_extent_range(struct inode *inode, u64 off, u64 len)
+static int lock_extent_range(struct inode *inode, u64 off, u64 len,
+			     bool retry_range_locking)
 {
-	/* do any pending delalloc/csum calc on src, one way or
-	   another, and lock file content */
+	/*
+	 * Do any pending delalloc/csum calculations on inode, one way or
+	 * another, and lock file content.
+	 * The locking order is:
+	 *
+	 *   1) pages
+	 *   2) range in the inode's io tree
+	 */
 	while (1) {
 		struct btrfs_ordered_extent *ordered;
 		lock_extent(&BTRFS_I(inode)->io_tree, off, off + len - 1);
@@ -2839,8 +2874,11 @@ static inline void lock_extent_range(str
 		unlock_extent(&BTRFS_I(inode)->io_tree, off, off + len - 1);
 		if (ordered)
 			btrfs_put_ordered_extent(ordered);
+		if (!retry_range_locking)
+			return -EAGAIN;
 		btrfs_wait_ordered_range(inode, off, len);
 	}
+	return 0;
 }
 
 static void btrfs_double_inode_unlock(struct inode *inode1, struct inode *inode2)
@@ -2865,15 +2903,24 @@ static void btrfs_double_extent_unlock(s
 	unlock_extent(&BTRFS_I(inode2)->io_tree, loff2, loff2 + len - 1);
 }
 
-static void btrfs_double_extent_lock(struct inode *inode1, u64 loff1,
-				     struct inode *inode2, u64 loff2, u64 len)
+static int btrfs_double_extent_lock(struct inode *inode1, u64 loff1,
+				    struct inode *inode2, u64 loff2, u64 len,
+				    bool retry_range_locking)
 {
+	int ret;
+
 	if (inode1 < inode2) {
 		swap(inode1, inode2);
 		swap(loff1, loff2);
 	}
-	lock_extent_range(inode1, loff1, len);
-	lock_extent_range(inode2, loff2, len);
+	ret = lock_extent_range(inode1, loff1, len, retry_range_locking);
+	if (ret)
+		return ret;
+	ret = lock_extent_range(inode2, loff2, len, retry_range_locking);
+	if (ret)
+		unlock_extent(&BTRFS_I(inode1)->io_tree, loff1,
+			      loff1 + len - 1);
+	return ret;
 }
 
 struct cmp_pages {
@@ -2889,11 +2936,15 @@ static void btrfs_cmp_data_free(struct c
 
 	for (i = 0; i < cmp->num_pages; i++) {
 		pg = cmp->src_pages[i];
-		if (pg)
+		if (pg) {
+			unlock_page(pg);
 			page_cache_release(pg);
+		}
 		pg = cmp->dst_pages[i];
-		if (pg)
+		if (pg) {
+			unlock_page(pg);
 			page_cache_release(pg);
+		}
 	}
 	kfree(cmp->src_pages);
 	kfree(cmp->dst_pages);
@@ -2933,7 +2984,7 @@ static int btrfs_cmp_data_prepare(struct
 out:
 	if (ret)
 		btrfs_cmp_data_free(cmp);
-	return 0;
+	return ret;
 }
 
 static int btrfs_cmp_data(struct inode *src, u64 loff, struct inode *dst,
@@ -2954,6 +3005,8 @@ static int btrfs_cmp_data(struct inode *
 
 		src_page = cmp->src_pages[i];
 		dst_page = cmp->dst_pages[i];
+		ASSERT(PageLocked(src_page));
+		ASSERT(PageLocked(dst_page));
 
 		addr = kmap_atomic(src_page);
 		dst_addr = kmap_atomic(dst_page);
@@ -3066,14 +3119,46 @@ static int btrfs_extent_same(struct inod
 		goto out_unlock;
 	}
 
+again:
 	ret = btrfs_cmp_data_prepare(src, loff, dst, dst_loff, olen, &cmp);
 	if (ret)
 		goto out_unlock;
 
 	if (same_inode)
-		lock_extent_range(src, same_lock_start, same_lock_len);
+		ret = lock_extent_range(src, same_lock_start, same_lock_len,
+					false);
 	else
-		btrfs_double_extent_lock(src, loff, dst, dst_loff, len);
+		ret = btrfs_double_extent_lock(src, loff, dst, dst_loff, len,
+					       false);
+	/*
+	 * If one of the inodes has dirty pages in the respective range or
+	 * ordered extents, we need to flush dellaloc and wait for all ordered
+	 * extents in the range. We must unlock the pages and the ranges in the
+	 * io trees to avoid deadlocks when flushing delalloc (requires locking
+	 * pages) and when waiting for ordered extents to complete (they require
+	 * range locking).
+	 */
+	if (ret == -EAGAIN) {
+		/*
+		 * Ranges in the io trees already unlocked. Now unlock all
+		 * pages before waiting for all IO to complete.
+		 */
+		btrfs_cmp_data_free(&cmp);
+		if (same_inode) {
+			btrfs_wait_ordered_range(src, same_lock_start,
+						 same_lock_len);
+		} else {
+			btrfs_wait_ordered_range(src, loff, len);
+			btrfs_wait_ordered_range(dst, dst_loff, len);
+		}
+		goto again;
+	}
+	ASSERT(ret == 0);
+	if (WARN_ON(ret)) {
+		/* ranges in the io trees already unlocked */
+		btrfs_cmp_data_free(&cmp);
+		return ret;
+	}
 
 	/* pass original length for comparison so we stay within i_size */
 	ret = btrfs_cmp_data(src, loff, dst, dst_loff, olen, &cmp);
@@ -3740,6 +3825,11 @@ process_slot:
 		}
 		btrfs_release_path(path);
 		key.offset = next_key_min_offset;
+
+		if (fatal_signal_pending(current)) {
+			ret = -EINTR;
+			goto out;
+		}
 	}
 	ret = 0;
 
@@ -3895,9 +3985,15 @@ static noinline long btrfs_ioctl_clone(s
 		u64 lock_start = min_t(u64, off, destoff);
 		u64 lock_len = max_t(u64, off, destoff) + len - lock_start;
 
-		lock_extent_range(src, lock_start, lock_len);
+		ret = lock_extent_range(src, lock_start, lock_len, true);
 	} else {
-		btrfs_double_extent_lock(src, off, inode, destoff, len);
+		ret = btrfs_double_extent_lock(src, off, inode, destoff, len,
+					       true);
+	}
+	ASSERT(ret == 0);
+	if (WARN_ON(ret)) {
+		/* ranges in the io trees already unlocked */
+		goto out_unlock;
 	}
 
 	ret = btrfs_clone(src, inode, off, olen, len, destoff, 0);
@@ -4022,6 +4118,10 @@ static long btrfs_ioctl_default_subvol(s
 		ret = PTR_ERR(new_root);
 		goto out;
 	}
+	if (!is_fstree(new_root->objectid)) {
+		ret = -ENOENT;
+		goto out;
+	}
 
 	path = btrfs_alloc_path();
 	if (!path) {
@@ -5042,7 +5142,7 @@ static long btrfs_ioctl_quota_rescan_wai
 	if (!capable(CAP_SYS_ADMIN))
 		return -EPERM;
 
-	return btrfs_qgroup_wait_for_completion(root->fs_info);
+	return btrfs_qgroup_wait_for_completion(root->fs_info, true);
 }
 
 static long _btrfs_ioctl_set_received_subvol(struct file *file,
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/btrfs/qgroup.c linux-libre-4.4.107-gnu/fs/btrfs/qgroup.c
--- linux-libre-4.4-gnu/fs/btrfs/qgroup.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/btrfs/qgroup.c	2017-12-20 04:05:01.000000000 -0500
@@ -995,7 +995,7 @@ int btrfs_quota_disable(struct btrfs_tra
 		goto out;
 	fs_info->quota_enabled = 0;
 	fs_info->pending_quota_state = 0;
-	btrfs_qgroup_wait_for_completion(fs_info);
+	btrfs_qgroup_wait_for_completion(fs_info, false);
 	spin_lock(&fs_info->qgroup_lock);
 	quota_root = fs_info->quota_root;
 	fs_info->quota_root = NULL;
@@ -2349,6 +2349,9 @@ out:
 	}
 
 done:
+	mutex_lock(&fs_info->qgroup_rescan_lock);
+	fs_info->qgroup_rescan_running = false;
+	mutex_unlock(&fs_info->qgroup_rescan_lock);
 	complete_all(&fs_info->qgroup_rescan_completion);
 }
 
@@ -2390,6 +2393,7 @@ qgroup_rescan_init(struct btrfs_fs_info
 		sizeof(fs_info->qgroup_rescan_progress));
 	fs_info->qgroup_rescan_progress.objectid = progress_objectid;
 	init_completion(&fs_info->qgroup_rescan_completion);
+	fs_info->qgroup_rescan_running = true;
 
 	spin_unlock(&fs_info->qgroup_lock);
 	mutex_unlock(&fs_info->qgroup_rescan_lock);
@@ -2467,20 +2471,26 @@ btrfs_qgroup_rescan(struct btrfs_fs_info
 	return 0;
 }
 
-int btrfs_qgroup_wait_for_completion(struct btrfs_fs_info *fs_info)
+int btrfs_qgroup_wait_for_completion(struct btrfs_fs_info *fs_info,
+				     bool interruptible)
 {
 	int running;
 	int ret = 0;
 
 	mutex_lock(&fs_info->qgroup_rescan_lock);
 	spin_lock(&fs_info->qgroup_lock);
-	running = fs_info->qgroup_flags & BTRFS_QGROUP_STATUS_FLAG_RESCAN;
+	running = fs_info->qgroup_rescan_running;
 	spin_unlock(&fs_info->qgroup_lock);
 	mutex_unlock(&fs_info->qgroup_rescan_lock);
 
-	if (running)
+	if (!running)
+		return 0;
+
+	if (interruptible)
 		ret = wait_for_completion_interruptible(
 					&fs_info->qgroup_rescan_completion);
+	else
+		wait_for_completion(&fs_info->qgroup_rescan_completion);
 
 	return ret;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/btrfs/qgroup.h linux-libre-4.4.107-gnu/fs/btrfs/qgroup.h
--- linux-libre-4.4-gnu/fs/btrfs/qgroup.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/btrfs/qgroup.h	2017-12-20 04:05:01.000000000 -0500
@@ -46,7 +46,8 @@ int btrfs_quota_disable(struct btrfs_tra
 			struct btrfs_fs_info *fs_info);
 int btrfs_qgroup_rescan(struct btrfs_fs_info *fs_info);
 void btrfs_qgroup_rescan_resume(struct btrfs_fs_info *fs_info);
-int btrfs_qgroup_wait_for_completion(struct btrfs_fs_info *fs_info);
+int btrfs_qgroup_wait_for_completion(struct btrfs_fs_info *fs_info,
+				     bool interruptible);
 int btrfs_add_qgroup_relation(struct btrfs_trans_handle *trans,
 			      struct btrfs_fs_info *fs_info, u64 src, u64 dst);
 int btrfs_del_qgroup_relation(struct btrfs_trans_handle *trans,
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/btrfs/relocation.c linux-libre-4.4.107-gnu/fs/btrfs/relocation.c
--- linux-libre-4.4-gnu/fs/btrfs/relocation.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/btrfs/relocation.c	2017-12-20 04:05:01.000000000 -0500
@@ -921,9 +921,16 @@ again:
 			path2->slots[level]--;
 
 		eb = path2->nodes[level];
-		WARN_ON(btrfs_node_blockptr(eb, path2->slots[level]) !=
-			cur->bytenr);
-
+		if (btrfs_node_blockptr(eb, path2->slots[level]) !=
+		    cur->bytenr) {
+			btrfs_err(root->fs_info,
+	"couldn't find block (%llu) (level %d) in tree (%llu) with key (%llu %u %llu)",
+				  cur->bytenr, level - 1, root->objectid,
+				  node_key->objectid, node_key->type,
+				  node_key->offset);
+			err = -ENOENT;
+			goto out;
+		}
 		lower = cur;
 		need_check = true;
 		for (; level < BTRFS_MAX_LEVEL; level++) {
@@ -2344,6 +2351,10 @@ void free_reloc_roots(struct list_head *
 		reloc_root = list_entry(list->next, struct btrfs_root,
 					root_list);
 		__del_reloc_root(reloc_root);
+		free_extent_buffer(reloc_root->node);
+		free_extent_buffer(reloc_root->commit_root);
+		reloc_root->node = NULL;
+		reloc_root->commit_root = NULL;
 	}
 }
 
@@ -2676,11 +2687,15 @@ static int do_relocation(struct btrfs_tr
 
 		if (!upper->eb) {
 			ret = btrfs_search_slot(trans, root, key, path, 0, 1);
-			if (ret < 0) {
-				err = ret;
+			if (ret) {
+				if (ret < 0)
+					err = ret;
+				else
+					err = -ENOENT;
+
+				btrfs_release_path(path);
 				break;
 			}
-			BUG_ON(ret > 0);
 
 			if (!upper->eb) {
 				upper->eb = path->nodes[upper->level];
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/btrfs/root-tree.c linux-libre-4.4.107-gnu/fs/btrfs/root-tree.c
--- linux-libre-4.4-gnu/fs/btrfs/root-tree.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/btrfs/root-tree.c	2017-12-20 04:05:01.000000000 -0500
@@ -310,8 +310,16 @@ int btrfs_find_orphan_roots(struct btrfs
 		set_bit(BTRFS_ROOT_ORPHAN_ITEM_INSERTED, &root->state);
 
 		err = btrfs_insert_fs_root(root->fs_info, root);
+		/*
+		 * The root might have been inserted already, as before we look
+		 * for orphan roots, log replay might have happened, which
+		 * triggers a transaction commit and qgroup accounting, which
+		 * in turn reads and inserts fs roots while doing backref
+		 * walking.
+		 */
+		if (err == -EEXIST)
+			err = 0;
 		if (err) {
-			BUG_ON(err == -EEXIST);
 			btrfs_free_fs_root(root);
 			break;
 		}
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/btrfs/send.c linux-libre-4.4.107-gnu/fs/btrfs/send.c
--- linux-libre-4.4-gnu/fs/btrfs/send.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/btrfs/send.c	2017-12-20 04:05:01.000000000 -0500
@@ -1469,7 +1469,21 @@ static int read_symlink(struct btrfs_roo
 	ret = btrfs_search_slot(NULL, root, &key, path, 0, 0);
 	if (ret < 0)
 		goto out;
-	BUG_ON(ret);
+	if (ret) {
+		/*
+		 * An empty symlink inode. Can happen in rare error paths when
+		 * creating a symlink (transaction committed before the inode
+		 * eviction handler removed the symlink inode items and a crash
+		 * happened in between or the subvol was snapshoted in between).
+		 * Print an informative message to dmesg/syslog so that the user
+		 * can delete the symlink.
+		 */
+		btrfs_err(root->fs_info,
+			  "Found empty symlink inode %llu at root %llu",
+			  ino, root->root_key.objectid);
+		ret = -EIO;
+		goto out;
+	}
 
 	ei = btrfs_item_ptr(path->nodes[0], path->slots[0],
 			struct btrfs_file_extent_item);
@@ -1634,6 +1648,9 @@ static int is_inode_existent(struct send
 {
 	int ret;
 
+	if (ino == BTRFS_FIRST_FREE_OBJECTID)
+		return 1;
+
 	ret = get_cur_inode_state(sctx, ino, gen);
 	if (ret < 0)
 		goto out;
@@ -1819,7 +1836,7 @@ static int will_overwrite_ref(struct sen
 	 * not delted and then re-created, if it was then we have no overwrite
 	 * and we can just unlink this entry.
 	 */
-	if (sctx->parent_root) {
+	if (sctx->parent_root && dir != BTRFS_FIRST_FREE_OBJECTID) {
 		ret = get_inode_info(sctx->parent_root, dir, NULL, &gen, NULL,
 				     NULL, NULL, NULL);
 		if (ret < 0 && ret != -ENOENT)
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/btrfs/super.c linux-libre-4.4.107-gnu/fs/btrfs/super.c
--- linux-libre-4.4-gnu/fs/btrfs/super.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/btrfs/super.c	2017-12-20 04:05:01.000000000 -0500
@@ -239,7 +239,7 @@ void __btrfs_abort_transaction(struct bt
 	trans->aborted = errno;
 	/* Nothing used. The other threads that have joined this
 	 * transaction may be able to continue. */
-	if (!trans->blocks_used && list_empty(&trans->new_bgs)) {
+	if (!trans->dirty && list_empty(&trans->new_bgs)) {
 		const char *errstr;
 
 		errstr = btrfs_decode_error(errno);
@@ -1727,6 +1727,8 @@ static int btrfs_remount(struct super_bl
 			goto restore;
 		}
 
+		btrfs_qgroup_rescan_resume(fs_info);
+
 		if (!fs_info->uuid_root) {
 			btrfs_info(fs_info, "creating UUID tree");
 			ret = btrfs_create_uuid_tree(fs_info);
@@ -1956,6 +1958,8 @@ static int btrfs_calc_avail_data_space(s
  * there are other factors that may change the result (like a new metadata
  * chunk).
  *
+ * If metadata is exhausted, f_bavail will be 0.
+ *
  * FIXME: not accurate for mixed block groups, total and free/used are ok,
  * available appears slightly larger.
  */
@@ -1967,11 +1971,13 @@ static int btrfs_statfs(struct dentry *d
 	struct btrfs_space_info *found;
 	u64 total_used = 0;
 	u64 total_free_data = 0;
+	u64 total_free_meta = 0;
 	int bits = dentry->d_sb->s_blocksize_bits;
 	__be32 *fsid = (__be32 *)fs_info->fsid;
 	unsigned factor = 1;
 	struct btrfs_block_rsv *block_rsv = &fs_info->global_block_rsv;
 	int ret;
+	u64 thresh = 0;
 
 	/*
 	 * holding chunk_muext to avoid allocating new chunks, holding
@@ -1997,6 +2003,8 @@ static int btrfs_statfs(struct dentry *d
 				}
 			}
 		}
+		if (found->flags & BTRFS_BLOCK_GROUP_METADATA)
+			total_free_meta += found->disk_total - found->disk_used;
 
 		total_used += found->disk_used;
 	}
@@ -2019,6 +2027,24 @@ static int btrfs_statfs(struct dentry *d
 	buf->f_bavail += div_u64(total_free_data, factor);
 	buf->f_bavail = buf->f_bavail >> bits;
 
+	/*
+	 * We calculate the remaining metadata space minus global reserve. If
+	 * this is (supposedly) smaller than zero, there's no space. But this
+	 * does not hold in practice, the exhausted state happens where's still
+	 * some positive delta. So we apply some guesswork and compare the
+	 * delta to a 4M threshold.  (Practically observed delta was ~2M.)
+	 *
+	 * We probably cannot calculate the exact threshold value because this
+	 * depends on the internal reservations requested by various
+	 * operations, so some operations that consume a few metadata will
+	 * succeed even if the Avail is zero. But this is better than the other
+	 * way around.
+	 */
+	thresh = 4 * 1024 * 1024;
+
+	if (total_free_meta - thresh < block_rsv->size)
+		buf->f_bavail = 0;
+
 	buf->f_type = BTRFS_SUPER_MAGIC;
 	buf->f_bsize = dentry->d_sb->s_blocksize;
 	buf->f_namelen = BTRFS_NAME_LEN;
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/btrfs/transaction.h linux-libre-4.4.107-gnu/fs/btrfs/transaction.h
--- linux-libre-4.4-gnu/fs/btrfs/transaction.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/btrfs/transaction.h	2017-12-20 04:05:01.000000000 -0500
@@ -110,7 +110,6 @@ struct btrfs_trans_handle {
 	u64 chunk_bytes_reserved;
 	unsigned long use_count;
 	unsigned long blocks_reserved;
-	unsigned long blocks_used;
 	unsigned long delayed_ref_updates;
 	struct btrfs_transaction *transaction;
 	struct btrfs_block_rsv *block_rsv;
@@ -121,6 +120,7 @@ struct btrfs_trans_handle {
 	bool can_flush_pending_bgs;
 	bool reloc_reserved;
 	bool sync;
+	bool dirty;
 	unsigned int type;
 	/*
 	 * this root is only needed to validate that the root passed to
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/btrfs/tree-log.c linux-libre-4.4.107-gnu/fs/btrfs/tree-log.c
--- linux-libre-4.4-gnu/fs/btrfs/tree-log.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/btrfs/tree-log.c	2017-12-20 04:05:01.000000000 -0500
@@ -1923,12 +1923,11 @@ static noinline int find_dir_range(struc
 next:
 	/* check the next slot in the tree to see if it is a valid item */
 	nritems = btrfs_header_nritems(path->nodes[0]);
+	path->slots[0]++;
 	if (path->slots[0] >= nritems) {
 		ret = btrfs_next_leaf(root, path);
 		if (ret)
 			goto out;
-	} else {
-		path->slots[0]++;
 	}
 
 	btrfs_item_key_to_cpu(path->nodes[0], &key, path->slots[0]);
@@ -2696,14 +2695,12 @@ static inline void btrfs_remove_all_log_
 					     int index, int error)
 {
 	struct btrfs_log_ctx *ctx;
+	struct btrfs_log_ctx *safe;
 
-	if (!error) {
-		INIT_LIST_HEAD(&root->log_ctxs[index]);
-		return;
-	}
-
-	list_for_each_entry(ctx, &root->log_ctxs[index], list)
+	list_for_each_entry_safe(ctx, safe, &root->log_ctxs[index], list) {
+		list_del_init(&ctx->list);
 		ctx->log_ret = error;
+	}
 
 	INIT_LIST_HEAD(&root->log_ctxs[index]);
 }
@@ -2850,6 +2847,7 @@ int btrfs_sync_log(struct btrfs_trans_ha
 
 	if (log_root_tree->log_transid_committed >= root_log_ctx.log_transid) {
 		blk_finish_plug(&plug);
+		list_del_init(&root_log_ctx.list);
 		mutex_unlock(&log_root_tree->log_mutex);
 		ret = root_log_ctx.log_ret;
 		goto out;
@@ -2943,13 +2941,9 @@ int btrfs_sync_log(struct btrfs_trans_ha
 	mutex_unlock(&root->log_mutex);
 
 out_wake_log_root:
-	/*
-	 * We needn't get log_mutex here because we are sure all
-	 * the other tasks are blocked.
-	 */
+	mutex_lock(&log_root_tree->log_mutex);
 	btrfs_remove_all_log_ctxs(log_root_tree, index2, ret);
 
-	mutex_lock(&log_root_tree->log_mutex);
 	log_root_tree->log_transid_committed++;
 	atomic_set(&log_root_tree->log_commit[index2], 0);
 	mutex_unlock(&log_root_tree->log_mutex);
@@ -2960,10 +2954,8 @@ out_wake_log_root:
 	if (waitqueue_active(&log_root_tree->log_commit_wait[index2]))
 		wake_up(&log_root_tree->log_commit_wait[index2]);
 out:
-	/* See above. */
-	btrfs_remove_all_log_ctxs(root, index1, ret);
-
 	mutex_lock(&root->log_mutex);
+	btrfs_remove_all_log_ctxs(root, index1, ret);
 	root->log_transid_committed++;
 	atomic_set(&root->log_commit[index1], 0);
 	mutex_unlock(&root->log_mutex);
@@ -4406,6 +4398,127 @@ static int btrfs_log_trailing_hole(struc
 	return ret;
 }
 
+/*
+ * When we are logging a new inode X, check if it doesn't have a reference that
+ * matches the reference from some other inode Y created in a past transaction
+ * and that was renamed in the current transaction. If we don't do this, then at
+ * log replay time we can lose inode Y (and all its files if it's a directory):
+ *
+ * mkdir /mnt/x
+ * echo "hello world" > /mnt/x/foobar
+ * sync
+ * mv /mnt/x /mnt/y
+ * mkdir /mnt/x                 # or touch /mnt/x
+ * xfs_io -c fsync /mnt/x
+ * <power fail>
+ * mount fs, trigger log replay
+ *
+ * After the log replay procedure, we would lose the first directory and all its
+ * files (file foobar).
+ * For the case where inode Y is not a directory we simply end up losing it:
+ *
+ * echo "123" > /mnt/foo
+ * sync
+ * mv /mnt/foo /mnt/bar
+ * echo "abc" > /mnt/foo
+ * xfs_io -c fsync /mnt/foo
+ * <power fail>
+ *
+ * We also need this for cases where a snapshot entry is replaced by some other
+ * entry (file or directory) otherwise we end up with an unreplayable log due to
+ * attempts to delete the snapshot entry (entry of type BTRFS_ROOT_ITEM_KEY) as
+ * if it were a regular entry:
+ *
+ * mkdir /mnt/x
+ * btrfs subvolume snapshot /mnt /mnt/x/snap
+ * btrfs subvolume delete /mnt/x/snap
+ * rmdir /mnt/x
+ * mkdir /mnt/x
+ * fsync /mnt/x or fsync some new file inside it
+ * <power fail>
+ *
+ * The snapshot delete, rmdir of x, mkdir of a new x and the fsync all happen in
+ * the same transaction.
+ */
+static int btrfs_check_ref_name_override(struct extent_buffer *eb,
+					 const int slot,
+					 const struct btrfs_key *key,
+					 struct inode *inode)
+{
+	int ret;
+	struct btrfs_path *search_path;
+	char *name = NULL;
+	u32 name_len = 0;
+	u32 item_size = btrfs_item_size_nr(eb, slot);
+	u32 cur_offset = 0;
+	unsigned long ptr = btrfs_item_ptr_offset(eb, slot);
+
+	search_path = btrfs_alloc_path();
+	if (!search_path)
+		return -ENOMEM;
+	search_path->search_commit_root = 1;
+	search_path->skip_locking = 1;
+
+	while (cur_offset < item_size) {
+		u64 parent;
+		u32 this_name_len;
+		u32 this_len;
+		unsigned long name_ptr;
+		struct btrfs_dir_item *di;
+
+		if (key->type == BTRFS_INODE_REF_KEY) {
+			struct btrfs_inode_ref *iref;
+
+			iref = (struct btrfs_inode_ref *)(ptr + cur_offset);
+			parent = key->offset;
+			this_name_len = btrfs_inode_ref_name_len(eb, iref);
+			name_ptr = (unsigned long)(iref + 1);
+			this_len = sizeof(*iref) + this_name_len;
+		} else {
+			struct btrfs_inode_extref *extref;
+
+			extref = (struct btrfs_inode_extref *)(ptr +
+							       cur_offset);
+			parent = btrfs_inode_extref_parent(eb, extref);
+			this_name_len = btrfs_inode_extref_name_len(eb, extref);
+			name_ptr = (unsigned long)&extref->name;
+			this_len = sizeof(*extref) + this_name_len;
+		}
+
+		if (this_name_len > name_len) {
+			char *new_name;
+
+			new_name = krealloc(name, this_name_len, GFP_NOFS);
+			if (!new_name) {
+				ret = -ENOMEM;
+				goto out;
+			}
+			name_len = this_name_len;
+			name = new_name;
+		}
+
+		read_extent_buffer(eb, name, name_ptr, this_name_len);
+		di = btrfs_lookup_dir_item(NULL, BTRFS_I(inode)->root,
+					   search_path, parent,
+					   name, this_name_len, 0);
+		if (di && !IS_ERR(di)) {
+			ret = 1;
+			goto out;
+		} else if (IS_ERR(di)) {
+			ret = PTR_ERR(di);
+			goto out;
+		}
+		btrfs_release_path(search_path);
+
+		cur_offset += this_len;
+	}
+	ret = 0;
+out:
+	btrfs_free_path(search_path);
+	kfree(name);
+	return ret;
+}
+
 /* log a single inode in the tree log.
  * At least one parent directory for this inode must exist in the tree
  * or be logged already.
@@ -4578,6 +4691,22 @@ again:
 		if (min_key.type == BTRFS_INODE_ITEM_KEY)
 			need_log_inode_item = false;
 
+		if ((min_key.type == BTRFS_INODE_REF_KEY ||
+		     min_key.type == BTRFS_INODE_EXTREF_KEY) &&
+		    BTRFS_I(inode)->generation == trans->transid) {
+			ret = btrfs_check_ref_name_override(path->nodes[0],
+							    path->slots[0],
+							    &min_key, inode);
+			if (ret < 0) {
+				err = ret;
+				goto out_unlock;
+			} else if (ret > 0) {
+				err = 1;
+				btrfs_set_log_full_commit(root->fs_info, trans);
+				goto out_unlock;
+			}
+		}
+
 		/* Skip xattrs, we log them later with btrfs_log_all_xattrs() */
 		if (min_key.type == BTRFS_XATTR_ITEM_KEY) {
 			if (ins_nr == 0)
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/btrfs/uuid-tree.c linux-libre-4.4.107-gnu/fs/btrfs/uuid-tree.c
--- linux-libre-4.4-gnu/fs/btrfs/uuid-tree.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/btrfs/uuid-tree.c	2017-12-20 04:05:01.000000000 -0500
@@ -348,7 +348,5 @@ skip:
 
 out:
 	btrfs_free_path(path);
-	if (ret)
-		btrfs_warn(fs_info, "btrfs_uuid_tree_iterate failed %d", ret);
-	return 0;
+	return ret;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/btrfs/volumes.c linux-libre-4.4.107-gnu/fs/btrfs/volumes.c
--- linux-libre-4.4-gnu/fs/btrfs/volumes.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/btrfs/volumes.c	2017-12-20 04:05:01.000000000 -0500
@@ -108,7 +108,7 @@ const struct btrfs_raid_attr btrfs_raid_
 	},
 };
 
-const u64 const btrfs_raid_group[BTRFS_NR_RAID_TYPES] = {
+const u64 btrfs_raid_group[BTRFS_NR_RAID_TYPES] = {
 	[BTRFS_RAID_RAID10] = BTRFS_BLOCK_GROUP_RAID10,
 	[BTRFS_RAID_RAID1]  = BTRFS_BLOCK_GROUP_RAID1,
 	[BTRFS_RAID_DUP]    = BTRFS_BLOCK_GROUP_DUP,
@@ -232,6 +232,7 @@ static struct btrfs_device *__alloc_devi
 	spin_lock_init(&dev->reada_lock);
 	atomic_set(&dev->reada_in_flight, 0);
 	atomic_set(&dev->dev_stats_ccnt, 0);
+	btrfs_device_data_ordered_init(dev);
 	INIT_RADIX_TREE(&dev->reada_zones, GFP_NOFS & ~__GFP_DIRECT_RECLAIM);
 	INIT_RADIX_TREE(&dev->reada_extents, GFP_NOFS & ~__GFP_DIRECT_RECLAIM);
 
@@ -1257,6 +1258,15 @@ int find_free_dev_extent_start(struct bt
 	int ret;
 	int slot;
 	struct extent_buffer *l;
+	u64 min_search_start;
+
+	/*
+	 * We don't want to overwrite the superblock on the drive nor any area
+	 * used by the boot loader (grub for example), so we make sure to start
+	 * at an offset of at least 1MB.
+	 */
+	min_search_start = max(root->fs_info->alloc_start, 1024ull * 1024);
+	search_start = max(search_start, min_search_start);
 
 	path = btrfs_alloc_path();
 	if (!path)
@@ -1397,18 +1407,9 @@ int find_free_dev_extent(struct btrfs_tr
 			 struct btrfs_device *device, u64 num_bytes,
 			 u64 *start, u64 *len)
 {
-	struct btrfs_root *root = device->dev_root;
-	u64 search_start;
-
 	/* FIXME use last free of some kind */
-
-	/*
-	 * we don't want to overwrite the superblock on the drive,
-	 * so we make sure to start at an offset of at least 1MB
-	 */
-	search_start = max(root->fs_info->alloc_start, 1024ull * 1024);
 	return find_free_dev_extent_start(trans->transaction, device,
-					  num_bytes, search_start, start, len);
+					  num_bytes, 0, start, len);
 }
 
 static int btrfs_free_dev_extent(struct btrfs_trans_handle *trans,
@@ -6512,6 +6513,14 @@ int btrfs_read_sys_array(struct btrfs_ro
 				goto out_short_read;
 
 			num_stripes = btrfs_chunk_num_stripes(sb, chunk);
+			if (!num_stripes) {
+				printk(KERN_ERR
+	    "BTRFS: invalid number of stripes %u in sys_array at offset %u\n",
+					num_stripes, cur_offset);
+				ret = -EIO;
+				break;
+			}
+
 			len = btrfs_chunk_item_size(num_stripes);
 			if (cur_offset + len > array_size)
 				goto out_short_read;
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/buffer.c linux-libre-4.4.107-gnu/fs/buffer.c
--- linux-libre-4.4-gnu/fs/buffer.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/buffer.c	2017-12-20 04:05:01.000000000 -0500
@@ -2298,7 +2298,7 @@ static int cont_expand_zero(struct file
 			    loff_t pos, loff_t *bytes)
 {
 	struct inode *inode = mapping->host;
-	unsigned blocksize = 1 << inode->i_blkbits;
+	unsigned int blocksize = i_blocksize(inode);
 	struct page *page;
 	void *fsdata;
 	pgoff_t index, curidx;
@@ -2378,8 +2378,8 @@ int cont_write_begin(struct file *file,
 			get_block_t *get_block, loff_t *bytes)
 {
 	struct inode *inode = mapping->host;
-	unsigned blocksize = 1 << inode->i_blkbits;
-	unsigned zerofrom;
+	unsigned int blocksize = i_blocksize(inode);
+	unsigned int zerofrom;
 	int err;
 
 	err = cont_expand_zero(file, mapping, pos, bytes);
@@ -2741,7 +2741,7 @@ int nobh_truncate_page(struct address_sp
 	struct buffer_head map_bh;
 	int err;
 
-	blocksize = 1 << inode->i_blkbits;
+	blocksize = i_blocksize(inode);
 	length = offset & (blocksize - 1);
 
 	/* Block boundary? Nothing to do */
@@ -2819,7 +2819,7 @@ int block_truncate_page(struct address_s
 	struct buffer_head *bh;
 	int err;
 
-	blocksize = 1 << inode->i_blkbits;
+	blocksize = i_blocksize(inode);
 	length = offset & (blocksize - 1);
 
 	/* Block boundary? Nothing to do */
@@ -2931,7 +2931,7 @@ sector_t generic_block_bmap(struct addre
 	struct inode *inode = mapping->host;
 	tmp.b_state = 0;
 	tmp.b_blocknr = 0;
-	tmp.b_size = 1 << inode->i_blkbits;
+	tmp.b_size = i_blocksize(inode);
 	get_block(inode, block, &tmp, 0);
 	return tmp.b_blocknr;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ceph/acl.c linux-libre-4.4.107-gnu/fs/ceph/acl.c
--- linux-libre-4.4-gnu/fs/ceph/acl.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/ceph/acl.c	2017-12-20 04:05:01.000000000 -0500
@@ -94,11 +94,9 @@ int ceph_set_acl(struct inode *inode, st
 	case ACL_TYPE_ACCESS:
 		name = POSIX_ACL_XATTR_ACCESS;
 		if (acl) {
-			ret = posix_acl_equiv_mode(acl, &new_mode);
-			if (ret < 0)
+			ret = posix_acl_update_mode(inode, &new_mode, &acl);
+			if (ret)
 				goto out;
-			if (ret == 0)
-				acl = NULL;
 		}
 		break;
 	case ACL_TYPE_DEFAULT:
@@ -130,7 +128,7 @@ int ceph_set_acl(struct inode *inode, st
 	if (new_mode != old_mode) {
 		newattrs.ia_mode = new_mode;
 		newattrs.ia_valid = ATTR_MODE;
-		ret = ceph_setattr(dentry, &newattrs);
+		ret = __ceph_setattr(dentry, &newattrs);
 		if (ret)
 			goto out_dput;
 	}
@@ -140,7 +138,7 @@ int ceph_set_acl(struct inode *inode, st
 		if (new_mode != old_mode) {
 			newattrs.ia_mode = old_mode;
 			newattrs.ia_valid = ATTR_MODE;
-			ceph_setattr(dentry, &newattrs);
+			__ceph_setattr(dentry, &newattrs);
 		}
 		goto out_dput;
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ceph/addr.c linux-libre-4.4.107-gnu/fs/ceph/addr.c
--- linux-libre-4.4-gnu/fs/ceph/addr.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/ceph/addr.c	2017-12-20 04:05:01.000000000 -0500
@@ -189,7 +189,7 @@ static int ceph_releasepage(struct page
 /*
  * read a single page, without unlocking it.
  */
-static int readpage_nounlock(struct file *filp, struct page *page)
+static int ceph_do_readpage(struct file *filp, struct page *page)
 {
 	struct inode *inode = file_inode(filp);
 	struct ceph_inode_info *ci = ceph_inode(inode);
@@ -219,7 +219,7 @@ static int readpage_nounlock(struct file
 
 	err = ceph_readpage_from_fscache(inode, page);
 	if (err == 0)
-		goto out;
+		return -EINPROGRESS;
 
 	dout("readpage inode %p file %p page %p index %lu\n",
 	     inode, filp, page, page->index);
@@ -249,8 +249,11 @@ out:
 
 static int ceph_readpage(struct file *filp, struct page *page)
 {
-	int r = readpage_nounlock(filp, page);
-	unlock_page(page);
+	int r = ceph_do_readpage(filp, page);
+	if (r != -EINPROGRESS)
+		unlock_page(page);
+	else
+		r = 0;
 	return r;
 }
 
@@ -697,7 +700,7 @@ static int ceph_writepages_start(struct
 	struct pagevec pvec;
 	int done = 0;
 	int rc = 0;
-	unsigned wsize = 1 << inode->i_blkbits;
+	unsigned int wsize = i_blocksize(inode);
 	struct ceph_osd_request *req = NULL;
 	int do_sync = 0;
 	loff_t snap_size, i_size;
@@ -1094,7 +1097,7 @@ retry_locked:
 			goto retry_locked;
 		r = writepage_nounlock(page, NULL);
 		if (r < 0)
-			goto fail_nosnap;
+			goto fail_unlock;
 		goto retry_locked;
 	}
 
@@ -1122,11 +1125,14 @@ retry_locked:
 	}
 
 	/* we need to read it. */
-	r = readpage_nounlock(file, page);
-	if (r < 0)
-		goto fail_nosnap;
+	r = ceph_do_readpage(file, page);
+	if (r < 0) {
+		if (r == -EINPROGRESS)
+			return -EAGAIN;
+		goto fail_unlock;
+	}
 	goto retry_locked;
-fail_nosnap:
+fail_unlock:
 	unlock_page(page);
 	return r;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ceph/cache.c linux-libre-4.4.107-gnu/fs/ceph/cache.c
--- linux-libre-4.4-gnu/fs/ceph/cache.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/ceph/cache.c	2017-12-20 04:05:01.000000000 -0500
@@ -224,13 +224,7 @@ void ceph_fscache_unregister_inode_cooki
 	fscache_relinquish_cookie(cookie, 0);
 }
 
-static void ceph_vfs_readpage_complete(struct page *page, void *data, int error)
-{
-	if (!error)
-		SetPageUptodate(page);
-}
-
-static void ceph_vfs_readpage_complete_unlock(struct page *page, void *data, int error)
+static void ceph_readpage_from_fscache_complete(struct page *page, void *data, int error)
 {
 	if (!error)
 		SetPageUptodate(page);
@@ -259,7 +253,7 @@ int ceph_readpage_from_fscache(struct in
 		return -ENOBUFS;
 
 	ret = fscache_read_or_alloc_page(ci->fscache, page,
-					 ceph_vfs_readpage_complete, NULL,
+					 ceph_readpage_from_fscache_complete, NULL,
 					 GFP_KERNEL);
 
 	switch (ret) {
@@ -288,7 +282,7 @@ int ceph_readpages_from_fscache(struct i
 		return -ENOBUFS;
 
 	ret = fscache_read_or_alloc_pages(ci->fscache, mapping, pages, nr_pages,
-					  ceph_vfs_readpage_complete_unlock,
+					  ceph_readpage_from_fscache_complete,
 					  NULL, mapping_gfp_mask(mapping));
 
 	switch (ret) {
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ceph/caps.c linux-libre-4.4.107-gnu/fs/ceph/caps.c
--- linux-libre-4.4-gnu/fs/ceph/caps.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/ceph/caps.c	2017-12-20 04:05:01.000000000 -0500
@@ -1850,6 +1850,7 @@ static int try_flush_caps(struct inode *
 retry:
 	spin_lock(&ci->i_ceph_lock);
 	if (ci->i_ceph_flags & CEPH_I_NOFLUSH) {
+		spin_unlock(&ci->i_ceph_lock);
 		dout("try_flush_caps skipping %p I_NOFLUSH set\n", inode);
 		goto out;
 	}
@@ -1867,8 +1868,10 @@ retry:
 			mutex_lock(&session->s_mutex);
 			goto retry;
 		}
-		if (cap->session->s_state < CEPH_MDS_SESSION_OPEN)
+		if (cap->session->s_state < CEPH_MDS_SESSION_OPEN) {
+			spin_unlock(&ci->i_ceph_lock);
 			goto out;
+		}
 
 		flushing = __mark_caps_flushing(inode, session, &flush_tid,
 						&oldest_flush_tid);
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ceph/dir.c linux-libre-4.4.107-gnu/fs/ceph/dir.c
--- linux-libre-4.4-gnu/fs/ceph/dir.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/ceph/dir.c	2017-12-20 04:05:01.000000000 -0500
@@ -247,6 +247,11 @@ static int __dcache_readdir(struct file
 		if (ret < 0)
 			err = ret;
 		dput(last);
+		/* last_name no longer match cache index */
+		if (fi->readdir_cache_idx >= 0) {
+			fi->readdir_cache_idx = -1;
+			fi->dir_release_count = 0;
+		}
 	}
 	return err;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ceph/file.c linux-libre-4.4.107-gnu/fs/ceph/file.c
--- linux-libre-4.4-gnu/fs/ceph/file.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/ceph/file.c	2017-12-20 04:05:01.000000000 -0500
@@ -929,7 +929,8 @@ again:
 		statret = __ceph_do_getattr(inode, page,
 					    CEPH_STAT_CAP_INLINE_DATA, !!page);
 		if (statret < 0) {
-			 __free_page(page);
+			if (page)
+				__free_page(page);
 			if (statret == -ENODATA) {
 				BUG_ON(retry_op != READ_INLINE);
 				goto again;
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ceph/inode.c linux-libre-4.4.107-gnu/fs/ceph/inode.c
--- linux-libre-4.4-gnu/fs/ceph/inode.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/ceph/inode.c	2017-12-20 04:05:01.000000000 -0500
@@ -1358,15 +1358,20 @@ static int fill_readdir_cache(struct ino
 
 	if (!ctl->page || pgoff != page_index(ctl->page)) {
 		ceph_readdir_cache_release(ctl);
-		ctl->page  = grab_cache_page(&dir->i_data, pgoff);
+		if (idx == 0)
+			ctl->page = grab_cache_page(&dir->i_data, pgoff);
+		else
+			ctl->page = find_lock_page(&dir->i_data, pgoff);
 		if (!ctl->page) {
 			ctl->index = -1;
-			return -ENOMEM;
+			return idx == 0 ? -ENOMEM : 0;
 		}
 		/* reading/filling the cache are serialized by
 		 * i_mutex, no need to use page lock */
 		unlock_page(ctl->page);
 		ctl->dentries = kmap(ctl->page);
+		if (idx == 0)
+			memset(ctl->dentries, 0, PAGE_CACHE_SIZE);
 	}
 
 	if (req->r_dir_release_cnt == atomic64_read(&ci->i_release_count) &&
@@ -1768,7 +1773,7 @@ static const struct inode_operations cep
 /*
  * setattr
  */
-int ceph_setattr(struct dentry *dentry, struct iattr *attr)
+int __ceph_setattr(struct dentry *dentry, struct iattr *attr)
 {
 	struct inode *inode = d_inode(dentry);
 	struct ceph_inode_info *ci = ceph_inode(inode);
@@ -1970,11 +1975,6 @@ int ceph_setattr(struct dentry *dentry,
 	if (inode_dirty_flags)
 		__mark_inode_dirty(inode, inode_dirty_flags);
 
-	if (ia_valid & ATTR_MODE) {
-		err = posix_acl_chmod(inode, attr->ia_mode);
-		if (err)
-			goto out_put;
-	}
 
 	if (mask) {
 		req->r_inode = inode;
@@ -1988,13 +1988,23 @@ int ceph_setattr(struct dentry *dentry,
 	     ceph_cap_string(dirtied), mask);
 
 	ceph_mdsc_put_request(req);
-	if (mask & CEPH_SETATTR_SIZE)
-		__ceph_do_pending_vmtruncate(inode);
 	ceph_free_cap_flush(prealloc_cf);
+
+	if (err >= 0 && (mask & CEPH_SETATTR_SIZE))
+		__ceph_do_pending_vmtruncate(inode);
+
 	return err;
-out_put:
-	ceph_mdsc_put_request(req);
-	ceph_free_cap_flush(prealloc_cf);
+}
+
+int ceph_setattr(struct dentry *dentry, struct iattr *attr)
+{
+	int err;
+
+	err = __ceph_setattr(dentry, attr);
+
+	if (err >= 0 && (attr->ia_valid & ATTR_MODE))
+		err = posix_acl_chmod(d_inode(dentry), attr->ia_mode);
+
 	return err;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ceph/mds_client.c linux-libre-4.4.107-gnu/fs/ceph/mds_client.c
--- linux-libre-4.4-gnu/fs/ceph/mds_client.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/ceph/mds_client.c	2017-12-20 04:05:01.000000000 -0500
@@ -274,12 +274,13 @@ static int parse_reply_info_extra(void *
 				  struct ceph_mds_reply_info_parsed *info,
 				  u64 features)
 {
-	if (info->head->op == CEPH_MDS_OP_GETFILELOCK)
+	u32 op = le32_to_cpu(info->head->op);
+
+	if (op == CEPH_MDS_OP_GETFILELOCK)
 		return parse_reply_info_filelock(p, end, info, features);
-	else if (info->head->op == CEPH_MDS_OP_READDIR ||
-		 info->head->op == CEPH_MDS_OP_LSSNAP)
+	else if (op == CEPH_MDS_OP_READDIR || op == CEPH_MDS_OP_LSSNAP)
 		return parse_reply_info_dir(p, end, info, features);
-	else if (info->head->op == CEPH_MDS_OP_CREATE)
+	else if (op == CEPH_MDS_OP_CREATE)
 		return parse_reply_info_create(p, end, info, features);
 	else
 		return -EIO;
@@ -643,6 +644,9 @@ static void __unregister_request(struct
 {
 	dout("__unregister_request %p tid %lld\n", req, req->r_tid);
 
+	/* Never leave an unregistered request on an unsafe list! */
+	list_del_init(&req->r_unsafe_item);
+
 	if (req->r_tid == mdsc->oldest_tid) {
 		struct rb_node *p = rb_next(&req->r_node);
 		mdsc->oldest_tid = 0;
@@ -1050,7 +1054,6 @@ static void cleanup_session_requests(str
 	while (!list_empty(&session->s_unsafe)) {
 		req = list_first_entry(&session->s_unsafe,
 				       struct ceph_mds_request, r_unsafe_item);
-		list_del_init(&req->r_unsafe_item);
 		pr_warn_ratelimited(" dropping unsafe request %llu\n",
 				    req->r_tid);
 		__unregister_request(mdsc, req);
@@ -1397,6 +1400,29 @@ static int __close_session(struct ceph_m
 	return request_close_session(mdsc, session);
 }
 
+static bool drop_negative_children(struct dentry *dentry)
+{
+	struct dentry *child;
+	bool all_negative = true;
+
+	if (!d_is_dir(dentry))
+		goto out;
+
+	spin_lock(&dentry->d_lock);
+	list_for_each_entry(child, &dentry->d_subdirs, d_child) {
+		if (d_really_is_positive(child)) {
+			all_negative = false;
+			break;
+		}
+	}
+	spin_unlock(&dentry->d_lock);
+
+	if (all_negative)
+		shrink_dcache_parent(dentry);
+out:
+	return all_negative;
+}
+
 /*
  * Trim old(er) caps.
  *
@@ -1442,16 +1468,27 @@ static int trim_caps_cb(struct inode *in
 	if ((used | wanted) & ~oissued & mine)
 		goto out;   /* we need these caps */
 
-	session->s_trim_caps--;
 	if (oissued) {
 		/* we aren't the only cap.. just remove us */
 		__ceph_remove_cap(cap, true);
+		session->s_trim_caps--;
 	} else {
+		struct dentry *dentry;
 		/* try dropping referring dentries */
 		spin_unlock(&ci->i_ceph_lock);
-		d_prune_aliases(inode);
-		dout("trim_caps_cb %p cap %p  pruned, count now %d\n",
-		     inode, cap, atomic_read(&inode->i_count));
+		dentry = d_find_any_alias(inode);
+		if (dentry && drop_negative_children(dentry)) {
+			int count;
+			dput(dentry);
+			d_prune_aliases(inode);
+			count = atomic_read(&inode->i_count);
+			if (count == 1)
+				session->s_trim_caps--;
+			dout("trim_caps_cb %p cap %p pruned, count now %d\n",
+			     inode, cap, count);
+		} else {
+			dput(dentry);
+		}
 		return 0;
 	}
 
@@ -1842,13 +1879,18 @@ static int build_dentry_path(struct dent
 			     int *pfreepath)
 {
 	char *path;
+	struct inode *dir;
 
-	if (ceph_snap(d_inode(dentry->d_parent)) == CEPH_NOSNAP) {
-		*pino = ceph_ino(d_inode(dentry->d_parent));
+	rcu_read_lock();
+	dir = d_inode_rcu(dentry->d_parent);
+	if (dir && ceph_snap(dir) == CEPH_NOSNAP) {
+		*pino = ceph_ino(dir);
+		rcu_read_unlock();
 		*ppath = dentry->d_name.name;
 		*ppathlen = dentry->d_name.len;
 		return 0;
 	}
+	rcu_read_unlock();
 	path = ceph_mdsc_build_path(dentry, ppathlen, pino, 1);
 	if (IS_ERR(path))
 		return PTR_ERR(path);
@@ -2476,7 +2518,6 @@ static void handle_reply(struct ceph_mds
 			 * useful we could do with a revised return value.
 			 */
 			dout("got safe reply %llu, mds%d\n", tid, mds);
-			list_del_init(&req->r_unsafe_item);
 
 			/* last unsafe request during umount? */
 			if (mdsc->stopping && !__get_oldest_req(mdsc))
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ceph/super.h linux-libre-4.4.107-gnu/fs/ceph/super.h
--- linux-libre-4.4-gnu/fs/ceph/super.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/ceph/super.h	2017-12-20 04:05:01.000000000 -0500
@@ -788,6 +788,7 @@ static inline int ceph_do_getattr(struct
 	return __ceph_do_getattr(inode, NULL, mask, force);
 }
 extern int ceph_permission(struct inode *inode, int mask);
+extern int __ceph_setattr(struct dentry *dentry, struct iattr *attr);
 extern int ceph_setattr(struct dentry *dentry, struct iattr *attr);
 extern int ceph_getattr(struct vfsmount *mnt, struct dentry *dentry,
 			struct kstat *stat);
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ceph/xattr.c linux-libre-4.4.107-gnu/fs/ceph/xattr.c
--- linux-libre-4.4-gnu/fs/ceph/xattr.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/ceph/xattr.c	2017-12-20 04:05:01.000000000 -0500
@@ -369,6 +369,7 @@ static int __set_xattr(struct ceph_inode
 
 	if (update_xattr) {
 		int err = 0;
+
 		if (xattr && (flags & XATTR_CREATE))
 			err = -EEXIST;
 		else if (!xattr && (flags & XATTR_REPLACE))
@@ -376,12 +377,14 @@ static int __set_xattr(struct ceph_inode
 		if (err) {
 			kfree(name);
 			kfree(val);
+			kfree(*newxattr);
 			return err;
 		}
 		if (update_xattr < 0) {
 			if (xattr)
 				__remove_xattr(ci, xattr);
 			kfree(name);
+			kfree(*newxattr);
 			return 0;
 		}
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/cifs/cifs_debug.c linux-libre-4.4.107-gnu/fs/cifs/cifs_debug.c
--- linux-libre-4.4-gnu/fs/cifs/cifs_debug.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/cifs/cifs_debug.c	2017-12-20 04:05:01.000000000 -0500
@@ -50,7 +50,7 @@ void cifs_vfs_err(const char *fmt, ...)
 	vaf.fmt = fmt;
 	vaf.va = &args;
 
-	pr_err("CIFS VFS: %pV", &vaf);
+	pr_err_ratelimited("CIFS VFS: %pV", &vaf);
 
 	va_end(args);
 }
@@ -152,6 +152,7 @@ static int cifs_debug_data_proc_show(str
 	list_for_each(tmp1, &cifs_tcp_ses_list) {
 		server = list_entry(tmp1, struct TCP_Server_Info,
 				    tcp_ses_list);
+		seq_printf(m, "\nNumber of credits: %d", server->credits);
 		i++;
 		list_for_each(tmp2, &server->smb_ses_list) {
 			ses = list_entry(tmp2, struct cifs_ses,
@@ -255,7 +256,6 @@ static const struct file_operations cifs
 static ssize_t cifs_stats_proc_write(struct file *file,
 		const char __user *buffer, size_t count, loff_t *ppos)
 {
-	char c;
 	bool bv;
 	int rc;
 	struct list_head *tmp1, *tmp2, *tmp3;
@@ -263,11 +263,8 @@ static ssize_t cifs_stats_proc_write(str
 	struct cifs_ses *ses;
 	struct cifs_tcon *tcon;
 
-	rc = get_user(c, buffer);
-	if (rc)
-		return rc;
-
-	if (strtobool(&c, &bv) == 0) {
+	rc = kstrtobool_from_user(buffer, count, &bv);
+	if (rc == 0) {
 #ifdef CONFIG_CIFS_STATS2
 		atomic_set(&totBufAllocCount, 0);
 		atomic_set(&totSmBufAllocCount, 0);
@@ -290,6 +287,8 @@ static ssize_t cifs_stats_proc_write(str
 			}
 		}
 		spin_unlock(&cifs_tcp_ses_lock);
+	} else {
+		return rc;
 	}
 
 	return count;
@@ -433,17 +432,17 @@ static int cifsFYI_proc_open(struct inod
 static ssize_t cifsFYI_proc_write(struct file *file, const char __user *buffer,
 		size_t count, loff_t *ppos)
 {
-	char c;
+	char c[2] = { '\0' };
 	bool bv;
 	int rc;
 
-	rc = get_user(c, buffer);
+	rc = get_user(c[0], buffer);
 	if (rc)
 		return rc;
-	if (strtobool(&c, &bv) == 0)
+	if (strtobool(c, &bv) == 0)
 		cifsFYI = bv;
-	else if ((c > '1') && (c <= '9'))
-		cifsFYI = (int) (c - '0'); /* see cifs_debug.h for meanings */
+	else if ((c[0] > '1') && (c[0] <= '9'))
+		cifsFYI = (int) (c[0] - '0'); /* see cifs_debug.h for meanings */
 
 	return count;
 }
@@ -471,20 +470,12 @@ static int cifs_linux_ext_proc_open(stru
 static ssize_t cifs_linux_ext_proc_write(struct file *file,
 		const char __user *buffer, size_t count, loff_t *ppos)
 {
-	char c;
-	bool bv;
 	int rc;
 
-	rc = get_user(c, buffer);
-	if (rc)
-		return rc;
-
-	rc = strtobool(&c, &bv);
+	rc = kstrtobool_from_user(buffer, count, &linuxExtEnabled);
 	if (rc)
 		return rc;
 
-	linuxExtEnabled = bv;
-
 	return count;
 }
 
@@ -511,20 +502,12 @@ static int cifs_lookup_cache_proc_open(s
 static ssize_t cifs_lookup_cache_proc_write(struct file *file,
 		const char __user *buffer, size_t count, loff_t *ppos)
 {
-	char c;
-	bool bv;
 	int rc;
 
-	rc = get_user(c, buffer);
-	if (rc)
-		return rc;
-
-	rc = strtobool(&c, &bv);
+	rc = kstrtobool_from_user(buffer, count, &lookupCacheEnabled);
 	if (rc)
 		return rc;
 
-	lookupCacheEnabled = bv;
-
 	return count;
 }
 
@@ -551,20 +534,12 @@ static int traceSMB_proc_open(struct ino
 static ssize_t traceSMB_proc_write(struct file *file, const char __user *buffer,
 		size_t count, loff_t *ppos)
 {
-	char c;
-	bool bv;
 	int rc;
 
-	rc = get_user(c, buffer);
-	if (rc)
-		return rc;
-
-	rc = strtobool(&c, &bv);
+	rc = kstrtobool_from_user(buffer, count, &traceSMB);
 	if (rc)
 		return rc;
 
-	traceSMB = bv;
-
 	return count;
 }
 
@@ -622,7 +597,6 @@ static ssize_t cifs_security_flags_proc_
 	int rc;
 	unsigned int flags;
 	char flags_string[12];
-	char c;
 	bool bv;
 
 	if ((count < 1) || (count > 11))
@@ -635,11 +609,10 @@ static ssize_t cifs_security_flags_proc_
 
 	if (count < 3) {
 		/* single char or single char followed by null */
-		c = flags_string[0];
-		if (strtobool(&c, &bv) == 0) {
+		if (strtobool(flags_string, &bv) == 0) {
 			global_secflags = bv ? CIFSSEC_MAX : CIFSSEC_DEF;
 			return count;
-		} else if (!isdigit(c)) {
+		} else if (!isdigit(flags_string[0])) {
 			cifs_dbg(VFS, "Invalid SecurityFlags: %s\n",
 					flags_string);
 			return -EINVAL;
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/cifs/cifs_debug.h linux-libre-4.4.107-gnu/fs/cifs/cifs_debug.h
--- linux-libre-4.4-gnu/fs/cifs/cifs_debug.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/cifs/cifs_debug.h	2017-12-20 04:05:01.000000000 -0500
@@ -25,7 +25,7 @@
 void cifs_dump_mem(char *label, void *data, int length);
 void cifs_dump_detail(void *);
 void cifs_dump_mids(struct TCP_Server_Info *);
-extern int traceSMB;		/* flag which enables the function below */
+extern bool traceSMB;		/* flag which enables the function below */
 void dump_smb(void *, int);
 #define CIFS_INFO	0x01
 #define CIFS_RC		0x02
@@ -51,14 +51,13 @@ __printf(1, 2) void cifs_vfs_err(const c
 /* information message: e.g., configuration, major event */
 #define cifs_dbg(type, fmt, ...)					\
 do {									\
-	if (type == FYI) {						\
-		if (cifsFYI & CIFS_INFO) {				\
-			pr_debug("%s: " fmt, __FILE__, ##__VA_ARGS__);	\
-		}							\
+	if (type == FYI && cifsFYI & CIFS_INFO) {			\
+		pr_debug_ratelimited("%s: "				\
+			    fmt, __FILE__, ##__VA_ARGS__);		\
 	} else if (type == VFS) {					\
 		cifs_vfs_err(fmt, ##__VA_ARGS__);			\
 	} else if (type == NOISY && type != 0) {			\
-		pr_debug(fmt, ##__VA_ARGS__);				\
+		pr_debug_ratelimited(fmt, ##__VA_ARGS__);		\
 	}								\
 } while (0)
 
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/cifs/cifsencrypt.c linux-libre-4.4.107-gnu/fs/cifs/cifsencrypt.c
--- linux-libre-4.4-gnu/fs/cifs/cifsencrypt.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/cifs/cifsencrypt.c	2017-12-20 04:05:01.000000000 -0500
@@ -714,7 +714,7 @@ setup_ntlmv2_rsp(struct cifs_ses *ses, c
 
 	ses->auth_key.response = kmalloc(baselen + tilen, GFP_KERNEL);
 	if (!ses->auth_key.response) {
-		rc = ENOMEM;
+		rc = -ENOMEM;
 		ses->auth_key.len = 0;
 		goto setup_ntlmv2_rsp_ret;
 	}
@@ -731,24 +731,26 @@ setup_ntlmv2_rsp(struct cifs_ses *ses, c
 
 	memcpy(ses->auth_key.response + baselen, tiblob, tilen);
 
+	mutex_lock(&ses->server->srv_mutex);
+
 	rc = crypto_hmacmd5_alloc(ses->server);
 	if (rc) {
 		cifs_dbg(VFS, "could not crypto alloc hmacmd5 rc %d\n", rc);
-		goto setup_ntlmv2_rsp_ret;
+		goto unlock;
 	}
 
 	/* calculate ntlmv2_hash */
 	rc = calc_ntlmv2_hash(ses, ntlmv2_hash, nls_cp);
 	if (rc) {
 		cifs_dbg(VFS, "could not get v2 hash rc %d\n", rc);
-		goto setup_ntlmv2_rsp_ret;
+		goto unlock;
 	}
 
 	/* calculate first part of the client response (CR1) */
 	rc = CalcNTLMv2_response(ses, ntlmv2_hash);
 	if (rc) {
 		cifs_dbg(VFS, "Could not calculate CR1 rc: %d\n", rc);
-		goto setup_ntlmv2_rsp_ret;
+		goto unlock;
 	}
 
 	/* now calculate the session key for NTLMv2 */
@@ -757,13 +759,13 @@ setup_ntlmv2_rsp(struct cifs_ses *ses, c
 	if (rc) {
 		cifs_dbg(VFS, "%s: Could not set NTLMV2 Hash as a key\n",
 			 __func__);
-		goto setup_ntlmv2_rsp_ret;
+		goto unlock;
 	}
 
 	rc = crypto_shash_init(&ses->server->secmech.sdeschmacmd5->shash);
 	if (rc) {
 		cifs_dbg(VFS, "%s: Could not init hmacmd5\n", __func__);
-		goto setup_ntlmv2_rsp_ret;
+		goto unlock;
 	}
 
 	rc = crypto_shash_update(&ses->server->secmech.sdeschmacmd5->shash,
@@ -771,7 +773,7 @@ setup_ntlmv2_rsp(struct cifs_ses *ses, c
 		CIFS_HMAC_MD5_HASH_SIZE);
 	if (rc) {
 		cifs_dbg(VFS, "%s: Could not update with response\n", __func__);
-		goto setup_ntlmv2_rsp_ret;
+		goto unlock;
 	}
 
 	rc = crypto_shash_final(&ses->server->secmech.sdeschmacmd5->shash,
@@ -779,6 +781,8 @@ setup_ntlmv2_rsp(struct cifs_ses *ses, c
 	if (rc)
 		cifs_dbg(VFS, "%s: Could not generate md5 hash\n", __func__);
 
+unlock:
+	mutex_unlock(&ses->server->srv_mutex);
 setup_ntlmv2_rsp_ret:
 	kfree(tiblob);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/cifs/cifsfs.c linux-libre-4.4.107-gnu/fs/cifs/cifsfs.c
--- linux-libre-4.4-gnu/fs/cifs/cifsfs.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/cifs/cifsfs.c	2017-12-20 04:05:01.000000000 -0500
@@ -54,10 +54,10 @@
 #endif
 
 int cifsFYI = 0;
-int traceSMB = 0;
+bool traceSMB;
 bool enable_oplocks = true;
-unsigned int linuxExtEnabled = 1;
-unsigned int lookupCacheEnabled = 1;
+bool linuxExtEnabled = true;
+bool lookupCacheEnabled = true;
 unsigned int global_secflags = CIFSSEC_DEF;
 /* unsigned int ntlmv2_support = 0; */
 unsigned int sign_CIFS_PDUs = 1;
@@ -268,7 +268,7 @@ cifs_alloc_inode(struct super_block *sb)
 	cifs_inode->createtime = 0;
 	cifs_inode->epoch = 0;
 #ifdef CONFIG_CIFS_SMB2
-	get_random_bytes(cifs_inode->lease_key, SMB2_LEASE_KEY_SIZE);
+	generate_random_uuid(cifs_inode->lease_key);
 #endif
 	/*
 	 * Can not set i_flags here - they get immediately overwritten to zero
@@ -686,6 +686,14 @@ cifs_do_mount(struct file_system_type *f
 		goto out_cifs_sb;
 	}
 
+	if (volume_info->prepath) {
+		cifs_sb->prepath = kstrdup(volume_info->prepath, GFP_KERNEL);
+		if (cifs_sb->prepath == NULL) {
+			root = ERR_PTR(-ENOMEM);
+			goto out_cifs_sb;
+		}
+	}
+
 	cifs_setup_cifs_sb(volume_info, cifs_sb);
 
 	rc = cifs_mount(cifs_sb, volume_info);
@@ -724,7 +732,11 @@ cifs_do_mount(struct file_system_type *f
 		sb->s_flags |= MS_ACTIVE;
 	}
 
-	root = cifs_get_root(volume_info, sb);
+	if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_USE_PREFIX_PATH)
+		root = dget(sb->s_root);
+	else
+		root = cifs_get_root(volume_info, sb);
+
 	if (IS_ERR(root))
 		goto out_super;
 
@@ -1198,7 +1210,6 @@ init_cifs(void)
 	GlobalTotalActiveXid = 0;
 	GlobalMaxActiveXid = 0;
 	spin_lock_init(&cifs_tcp_ses_lock);
-	spin_lock_init(&cifs_file_list_lock);
 	spin_lock_init(&GlobalMid_Lock);
 
 	if (cifs_max_pending < 2) {
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/cifs/cifsfs.h linux-libre-4.4.107-gnu/fs/cifs/cifsfs.h
--- linux-libre-4.4-gnu/fs/cifs/cifsfs.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/cifs/cifsfs.h	2017-12-20 04:05:01.000000000 -0500
@@ -31,19 +31,15 @@
  * so that it will fit. We use hash_64 to convert the value to 31 bits, and
  * then add 1, to ensure that we don't end up with a 0 as the value.
  */
-#if BITS_PER_LONG == 64
 static inline ino_t
 cifs_uniqueid_to_ino_t(u64 fileid)
 {
+	if ((sizeof(ino_t)) < (sizeof(u64)))
+		return (ino_t)hash_64(fileid, (sizeof(ino_t) * 8) - 1) + 1;
+
 	return (ino_t)fileid;
+
 }
-#else
-static inline ino_t
-cifs_uniqueid_to_ino_t(u64 fileid)
-{
-	return (ino_t)hash_64(fileid, (sizeof(ino_t) * 8) - 1) + 1;
-}
-#endif
 
 extern struct file_system_type cifs_fs_type;
 extern const struct address_space_operations cifs_addr_ops;
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/cifs/cifs_fs_sb.h linux-libre-4.4.107-gnu/fs/cifs/cifs_fs_sb.h
--- linux-libre-4.4-gnu/fs/cifs/cifs_fs_sb.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/cifs/cifs_fs_sb.h	2017-12-20 04:05:01.000000000 -0500
@@ -46,6 +46,9 @@
 #define CIFS_MOUNT_CIFS_BACKUPUID 0x200000 /* backup intent bit for a user */
 #define CIFS_MOUNT_CIFS_BACKUPGID 0x400000 /* backup intent bit for a group */
 #define CIFS_MOUNT_MAP_SFM_CHR	0x800000 /* SFM/MAC mapping for illegal chars */
+#define CIFS_MOUNT_USE_PREFIX_PATH 0x1000000 /* make subpath with unaccessible
+					      * root mountable
+					      */
 
 struct cifs_sb_info {
 	struct rb_root tlink_tree;
@@ -67,5 +70,6 @@ struct cifs_sb_info {
 	struct backing_dev_info bdi;
 	struct delayed_work prune_tlinks;
 	struct rcu_head rcu;
+	char *prepath;
 };
 #endif				/* _CIFS_FS_SB_H */
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/cifs/cifsglob.h linux-libre-4.4.107-gnu/fs/cifs/cifsglob.h
--- linux-libre-4.4-gnu/fs/cifs/cifsglob.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/cifs/cifsglob.h	2017-12-20 04:05:01.000000000 -0500
@@ -227,6 +227,7 @@ struct smb_version_operations {
 	/* verify the message */
 	int (*check_message)(char *, unsigned int);
 	bool (*is_oplock_break)(char *, struct TCP_Server_Info *);
+	int (*handle_cancelled_mid)(char *, struct TCP_Server_Info *);
 	void (*downgrade_oplock)(struct TCP_Server_Info *,
 					struct cifsInodeInfo *, bool);
 	/* process transaction2 response */
@@ -350,6 +351,8 @@ struct smb_version_operations {
 	unsigned int (*calc_smb_size)(void *);
 	/* check for STATUS_PENDING and process it in a positive case */
 	bool (*is_status_pending)(char *, struct TCP_Server_Info *, int);
+	/* check for STATUS_NETWORK_SESSION_EXPIRED */
+	bool (*is_session_expired)(char *);
 	/* send oplock break response */
 	int (*oplock_response)(struct cifs_tcon *, struct cifs_fid *,
 			       struct cifsInodeInfo *);
@@ -627,6 +630,8 @@ struct TCP_Server_Info {
 #ifdef CONFIG_CIFS_SMB2
 	unsigned int	max_read;
 	unsigned int	max_write;
+	struct delayed_work reconnect; /* reconnect workqueue job */
+	struct mutex reconnect_mutex; /* prevent simultaneous reconnects */
 #endif /* CONFIG_CIFS_SMB2 */
 };
 
@@ -826,7 +831,9 @@ cap_unix(struct cifs_ses *ses)
 struct cifs_tcon {
 	struct list_head tcon_list;
 	int tc_count;
+	struct list_head rlist; /* reconnect list */
 	struct list_head openFileList;
+	spinlock_t open_file_lock; /* protects list above */
 	struct cifs_ses *ses;	/* pointer to session associated with */
 	char treeName[MAX_TREE_SIZE + 1]; /* UNC name of resource in ASCII */
 	char *nativeFileSystem;
@@ -883,7 +890,7 @@ struct cifs_tcon {
 #endif /* CONFIG_CIFS_STATS2 */
 	__u64    bytes_read;
 	__u64    bytes_written;
-	spinlock_t stat_lock;
+	spinlock_t stat_lock;  /* protects the two fields above */
 #endif /* CONFIG_CIFS_STATS */
 	FILE_SYSTEM_DEVICE_INFO fsDevInfo;
 	FILE_SYSTEM_ATTRIBUTE_INFO fsAttrInfo; /* ok if fs name truncated */
@@ -902,7 +909,6 @@ struct cifs_tcon {
 	bool use_persistent:1; /* use persistent instead of durable handles */
 #ifdef CONFIG_CIFS_SMB2
 	bool print:1;		/* set if connection to printer share */
-	bool bad_network_name:1; /* set if ret status STATUS_BAD_NETWORK_NAME */
 	__le32 capabilities;
 	__u32 share_flags;
 	__u32 maximal_access;
@@ -1034,8 +1040,10 @@ struct cifs_fid_locks {
 };
 
 struct cifsFileInfo {
+	/* following two lists are protected by tcon->open_file_lock */
 	struct list_head tlist;	/* pointer to next fid owned by tcon */
 	struct list_head flist;	/* next fid (file instance) for this inode */
+	/* lock list below protected by cifsi->lock_sem */
 	struct cifs_fid_locks *llist;	/* brlocks held by this fid */
 	kuid_t uid;		/* allows finding which FileInfo structure */
 	__u32 pid;		/* process id who opened file */
@@ -1043,11 +1051,12 @@ struct cifsFileInfo {
 	/* BB add lock scope info here if needed */ ;
 	/* lock scope id (0 if none) */
 	struct dentry *dentry;
-	unsigned int f_flags;
 	struct tcon_link *tlink;
+	unsigned int f_flags;
 	bool invalidHandle:1;	/* file closed via session abend */
 	bool oplock_break_cancelled:1;
-	int count;		/* refcount protected by cifs_file_list_lock */
+	int count;
+	spinlock_t file_info_lock; /* protects four flag/count fields above */
 	struct mutex fh_mutex; /* prevents reopen race after dead ses*/
 	struct cifs_search_info srch_inf;
 	struct work_struct oplock_break; /* work for oplock breaks */
@@ -1114,7 +1123,7 @@ struct cifs_writedata {
 
 /*
  * Take a reference on the file private data. Must be called with
- * cifs_file_list_lock held.
+ * cfile->file_info_lock held.
  */
 static inline void
 cifsFileInfo_get_locked(struct cifsFileInfo *cifs_file)
@@ -1283,12 +1292,19 @@ struct mid_q_entry {
 	void *callback_data;	  /* general purpose pointer for callback */
 	void *resp_buf;		/* pointer to received SMB header */
 	int mid_state;	/* wish this were enum but can not pass to wait_event */
+	unsigned int mid_flags;
 	__le16 command;		/* smb command code */
 	bool large_buf:1;	/* if valid response, is pointer to large buf */
 	bool multiRsp:1;	/* multiple trans2 responses for one request  */
 	bool multiEnd:1;	/* both received */
 };
 
+struct close_cancelled_open {
+	struct cifs_fid         fid;
+	struct cifs_tcon        *tcon;
+	struct work_struct      work;
+};
+
 /*	Make code in transport.c a little cleaner by moving
 	update of optional stats into function below */
 #ifdef CONFIG_CIFS_STATS2
@@ -1420,6 +1436,9 @@ static inline void free_dfs_info_array(s
 #define   MID_RESPONSE_MALFORMED 0x10
 #define   MID_SHUTDOWN		 0x20
 
+/* Flags */
+#define   MID_WAIT_CANCELLED	 1 /* Cancelled while waiting for response */
+
 /* Types of response buffer returned from SendReceive2 */
 #define   CIFS_NO_BUFFER        0    /* Response buffer not returned */
 #define   CIFS_SMALL_BUFFER     1
@@ -1508,8 +1527,10 @@ require use of the stronger protocol */
  *  GlobalMid_Lock protects:
  *	list operations on pending_mid_q and oplockQ
  *      updates to XID counters, multiplex id  and SMB sequence numbers
- *  cifs_file_list_lock protects:
- *	list operations on tcp and SMB session lists and tCon lists
+ *  tcp_ses_lock protects:
+ *	list operations on tcp and SMB session lists
+ *  tcon->open_file_lock protects the list of open files hanging off the tcon
+ *  cfile->file_info_lock protects counters and fields in cifs file struct
  *  f_owner.lock protects certain per file struct operations
  *  mapping->page_lock protects certain per page operations
  *
@@ -1541,18 +1562,12 @@ GLOBAL_EXTERN struct list_head		cifs_tcp
  * tcp session, and the list of tcon's per smb session. It also protects
  * the reference counters for the server, smb session, and tcon. Finally,
  * changes to the tcon->tidStatus should be done while holding this lock.
+ * generally the locks should be taken in order tcp_ses_lock before
+ * tcon->open_file_lock and that before file->file_info_lock since the
+ * structure order is cifs_socket-->cifs_ses-->cifs_tcon-->cifs_file
  */
 GLOBAL_EXTERN spinlock_t		cifs_tcp_ses_lock;
 
-/*
- * This lock protects the cifs_file->llist and cifs_file->flist
- * list operations, and updates to some flags (cifs_file->invalidHandle)
- * It will be moved to either use the tcon->stat_lock or equivalent later.
- * If cifs_tcp_ses_lock and the lock below are both needed to be held, then
- * the cifs_tcp_ses_lock must be grabbed first and released last.
- */
-GLOBAL_EXTERN spinlock_t	cifs_file_list_lock;
-
 #ifdef CONFIG_CIFS_DNOTIFY_EXPERIMENTAL /* unused temporarily */
 /* Outstanding dir notify requests */
 GLOBAL_EXTERN struct list_head GlobalDnotifyReqList;
@@ -1588,11 +1603,11 @@ GLOBAL_EXTERN atomic_t midCount;
 
 /* Misc globals */
 GLOBAL_EXTERN bool enable_oplocks; /* enable or disable oplocks */
-GLOBAL_EXTERN unsigned int lookupCacheEnabled;
+GLOBAL_EXTERN bool lookupCacheEnabled;
 GLOBAL_EXTERN unsigned int global_secflags;	/* if on, session setup sent
 				with more secure ntlmssp2 challenge/resp */
 GLOBAL_EXTERN unsigned int sign_CIFS_PDUs;  /* enable smb packet signing */
-GLOBAL_EXTERN unsigned int linuxExtEnabled;/*enable Linux/Unix CIFS extensions*/
+GLOBAL_EXTERN bool linuxExtEnabled;/*enable Linux/Unix CIFS extensions*/
 GLOBAL_EXTERN unsigned int CIFSMaxBufSize;  /* max size not including hdr */
 GLOBAL_EXTERN unsigned int cifs_min_rcv;    /* min size of big ntwrk buf pool */
 GLOBAL_EXTERN unsigned int cifs_min_small;  /* min size of small buf pool */
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/cifs/cifsproto.h linux-libre-4.4.107-gnu/fs/cifs/cifsproto.h
--- linux-libre-4.4-gnu/fs/cifs/cifsproto.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/cifs/cifsproto.h	2017-12-20 04:05:01.000000000 -0500
@@ -205,6 +205,9 @@ extern void cifs_add_pending_open_locked
 					 struct tcon_link *tlink,
 					 struct cifs_pending_open *open);
 extern void cifs_del_pending_open(struct cifs_pending_open *open);
+extern void cifs_put_tcp_session(struct TCP_Server_Info *server,
+				 int from_reconnect);
+extern void cifs_put_tcon(struct cifs_tcon *tcon);
 
 #if IS_ENABLED(CONFIG_CIFS_DFS_UPCALL)
 extern void cifs_dfs_release_automount_timer(void);
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/cifs/cifssmb.c linux-libre-4.4.107-gnu/fs/cifs/cifssmb.c
--- linux-libre-4.4-gnu/fs/cifs/cifssmb.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/cifs/cifssmb.c	2017-12-20 04:05:01.000000000 -0500
@@ -98,13 +98,13 @@ cifs_mark_open_files_invalid(struct cifs
 	struct list_head *tmp1;
 
 	/* list all files open on tree connection and mark them invalid */
-	spin_lock(&cifs_file_list_lock);
+	spin_lock(&tcon->open_file_lock);
 	list_for_each_safe(tmp, tmp1, &tcon->openFileList) {
 		open_file = list_entry(tmp, struct cifsFileInfo, tlist);
 		open_file->invalidHandle = true;
 		open_file->oplock_break_cancelled = true;
 	}
-	spin_unlock(&cifs_file_list_lock);
+	spin_unlock(&tcon->open_file_lock);
 	/*
 	 * BB Add call to invalidate_inodes(sb) for all superblocks mounted
 	 * to this tcon.
@@ -717,6 +717,9 @@ CIFSSMBEcho(struct TCP_Server_Info *serv
 	if (rc)
 		return rc;
 
+	if (server->capabilities & CAP_UNICODE)
+		smb->hdr.Flags2 |= SMBFLG2_UNICODE;
+
 	/* set up echo request */
 	smb->hdr.Tid = 0xffff;
 	smb->hdr.WordCount = 1;
@@ -1396,11 +1399,10 @@ openRetry:
  * current bigbuf.
  */
 static int
-cifs_readv_discard(struct TCP_Server_Info *server, struct mid_q_entry *mid)
+discard_remaining_data(struct TCP_Server_Info *server)
 {
 	unsigned int rfclen = get_rfc1002_length(server->smallbuf);
 	int remaining = rfclen + 4 - server->total_read;
-	struct cifs_readdata *rdata = mid->callback_data;
 
 	while (remaining > 0) {
 		int length;
@@ -1414,10 +1416,22 @@ cifs_readv_discard(struct TCP_Server_Inf
 		remaining -= length;
 	}
 
-	dequeue_mid(mid, rdata->result);
 	return 0;
 }
 
+static int
+cifs_readv_discard(struct TCP_Server_Info *server, struct mid_q_entry *mid)
+{
+	int length;
+	struct cifs_readdata *rdata = mid->callback_data;
+
+	length = discard_remaining_data(server);
+	dequeue_mid(mid, rdata->result);
+	mid->resp_buf = server->smallbuf;
+	server->smallbuf = NULL;
+	return length;
+}
+
 int
 cifs_readv_receive(struct TCP_Server_Info *server, struct mid_q_entry *mid)
 {
@@ -1446,6 +1460,19 @@ cifs_readv_receive(struct TCP_Server_Inf
 		return length;
 	server->total_read += length;
 
+	if (server->ops->is_session_expired &&
+	    server->ops->is_session_expired(buf)) {
+		cifs_reconnect(server);
+		wake_up(&server->response_q);
+		return -1;
+	}
+
+	if (server->ops->is_status_pending &&
+	    server->ops->is_status_pending(buf, server, 0)) {
+		discard_remaining_data(server);
+		return -1;
+	}
+
 	/* Was the SMB read successful? */
 	rdata->result = server->ops->map_error(buf, false);
 	if (rdata->result != 0) {
@@ -1523,6 +1550,8 @@ cifs_readv_receive(struct TCP_Server_Inf
 		return cifs_readv_discard(server, mid);
 
 	dequeue_mid(mid, false);
+	mid->resp_buf = server->smallbuf;
+	server->smallbuf = NULL;
 	return length;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/cifs/cifs_unicode.c linux-libre-4.4.107-gnu/fs/cifs/cifs_unicode.c
--- linux-libre-4.4-gnu/fs/cifs/cifs_unicode.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/cifs/cifs_unicode.c	2017-12-20 04:05:01.000000000 -0500
@@ -83,6 +83,9 @@ convert_sfm_char(const __u16 src_char, c
 	case SFM_COLON:
 		*target = ':';
 		break;
+	case SFM_DOUBLEQUOTE:
+		*target = '"';
+		break;
 	case SFM_ASTERISK:
 		*target = '*';
 		break;
@@ -101,6 +104,12 @@ convert_sfm_char(const __u16 src_char, c
 	case SFM_SLASH:
 		*target = '\\';
 		break;
+	case SFM_SPACE:
+		*target = ' ';
+		break;
+	case SFM_PERIOD:
+		*target = '.';
+		break;
 	default:
 		return false;
 	}
@@ -404,7 +413,7 @@ static __le16 convert_to_sfu_char(char s
 	return dest_char;
 }
 
-static __le16 convert_to_sfm_char(char src_char)
+static __le16 convert_to_sfm_char(char src_char, bool end_of_string)
 {
 	__le16 dest_char;
 
@@ -412,6 +421,9 @@ static __le16 convert_to_sfm_char(char s
 	case ':':
 		dest_char = cpu_to_le16(SFM_COLON);
 		break;
+	case '"':
+		dest_char = cpu_to_le16(SFM_DOUBLEQUOTE);
+		break;
 	case '*':
 		dest_char = cpu_to_le16(SFM_ASTERISK);
 		break;
@@ -427,6 +439,18 @@ static __le16 convert_to_sfm_char(char s
 	case '|':
 		dest_char = cpu_to_le16(SFM_PIPE);
 		break;
+	case '.':
+		if (end_of_string)
+			dest_char = cpu_to_le16(SFM_PERIOD);
+		else
+			dest_char = 0;
+		break;
+	case ' ':
+		if (end_of_string)
+			dest_char = cpu_to_le16(SFM_SPACE);
+		else
+			dest_char = 0;
+		break;
 	default:
 		dest_char = 0;
 	}
@@ -469,9 +493,16 @@ cifsConvertToUTF16(__le16 *target, const
 		/* see if we must remap this char */
 		if (map_chars == SFU_MAP_UNI_RSVD)
 			dst_char = convert_to_sfu_char(src_char);
-		else if (map_chars == SFM_MAP_UNI_RSVD)
-			dst_char = convert_to_sfm_char(src_char);
-		else
+		else if (map_chars == SFM_MAP_UNI_RSVD) {
+			bool end_of_string;
+
+			if (i == srclen - 1)
+				end_of_string = true;
+			else
+				end_of_string = false;
+
+			dst_char = convert_to_sfm_char(src_char, end_of_string);
+		} else
 			dst_char = 0;
 		/*
 		 * FIXME: We can not handle remapping backslash (UNI_SLASH)
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/cifs/cifs_unicode.h linux-libre-4.4.107-gnu/fs/cifs/cifs_unicode.h
--- linux-libre-4.4-gnu/fs/cifs/cifs_unicode.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/cifs/cifs_unicode.h	2017-12-20 04:05:01.000000000 -0500
@@ -57,6 +57,7 @@
  * not conflict (although almost does) with the mapping above.
  */
 
+#define SFM_DOUBLEQUOTE ((__u16) 0xF020)
 #define SFM_ASTERISK    ((__u16) 0xF021)
 #define SFM_QUESTION    ((__u16) 0xF025)
 #define SFM_COLON       ((__u16) 0xF022)
@@ -64,6 +65,8 @@
 #define SFM_LESSTHAN    ((__u16) 0xF023)
 #define SFM_PIPE        ((__u16) 0xF027)
 #define SFM_SLASH       ((__u16) 0xF026)
+#define SFM_SPACE	((__u16) 0xF028)
+#define SFM_PERIOD	((__u16) 0xF029)
 
 /*
  * Mapping mechanism to use when one of the seven reserved characters is
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/cifs/connect.c linux-libre-4.4.107-gnu/fs/cifs/connect.c
--- linux-libre-4.4-gnu/fs/cifs/connect.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/cifs/connect.c	2017-12-20 04:05:01.000000000 -0500
@@ -52,6 +52,9 @@
 #include "nterr.h"
 #include "rfc1002pdu.h"
 #include "fscache.h"
+#ifdef CONFIG_CIFS_SMB2
+#include "smb2proto.h"
+#endif
 
 #define CIFS_PORT 445
 #define RFC1001_PORT 139
@@ -368,7 +371,6 @@ cifs_reconnect(struct TCP_Server_Info *s
 	server->session_key.response = NULL;
 	server->session_key.len = 0;
 	server->lstrp = jiffies;
-	mutex_unlock(&server->srv_mutex);
 
 	/* mark submitted MIDs for retry and issue callback */
 	INIT_LIST_HEAD(&retry_list);
@@ -381,6 +383,7 @@ cifs_reconnect(struct TCP_Server_Info *s
 		list_move(&mid_entry->qhead, &retry_list);
 	}
 	spin_unlock(&GlobalMid_Lock);
+	mutex_unlock(&server->srv_mutex);
 
 	cifs_dbg(FYI, "%s: issuing mid callbacks\n", __func__);
 	list_for_each_safe(tmp, tmp2, &retry_list) {
@@ -409,6 +412,9 @@ cifs_reconnect(struct TCP_Server_Info *s
 		}
 	} while (server->tcpStatus == CifsNeedReconnect);
 
+	if (server->tcpStatus == CifsNeedNegotiate)
+		mod_delayed_work(cifsiod_wq, &server->echo, 0);
+
 	return rc;
 }
 
@@ -418,16 +424,27 @@ cifs_echo_request(struct work_struct *wo
 	int rc;
 	struct TCP_Server_Info *server = container_of(work,
 					struct TCP_Server_Info, echo.work);
+	unsigned long echo_interval;
 
 	/*
-	 * We cannot send an echo if it is disabled or until the
-	 * NEGOTIATE_PROTOCOL request is done, which is indicated by
-	 * server->ops->need_neg() == true. Also, no need to ping if
-	 * we got a response recently.
+	 * If we need to renegotiate, set echo interval to zero to
+	 * immediately call echo service where we can renegotiate.
 	 */
-	if (!server->ops->need_neg || server->ops->need_neg(server) ||
+	if (server->tcpStatus == CifsNeedNegotiate)
+		echo_interval = 0;
+	else
+		echo_interval = SMB_ECHO_INTERVAL;
+
+	/*
+	 * We cannot send an echo if it is disabled.
+	 * Also, no need to ping if we got a response recently.
+	 */
+
+	if (server->tcpStatus == CifsNeedReconnect ||
+	    server->tcpStatus == CifsExiting ||
+	    server->tcpStatus == CifsNew ||
 	    (server->ops->can_echo && !server->ops->can_echo(server)) ||
-	    time_before(jiffies, server->lstrp + SMB_ECHO_INTERVAL - HZ))
+	    time_before(jiffies, server->lstrp + echo_interval - HZ))
 		goto requeue_echo;
 
 	rc = server->ops->echo ? server->ops->echo(server) : -ENOSYS;
@@ -833,6 +850,13 @@ standard_receive3(struct TCP_Server_Info
 		cifs_dump_mem("Bad SMB: ", buf,
 			min_t(unsigned int, server->total_read, 48));
 
+	if (server->ops->is_session_expired &&
+	    server->ops->is_session_expired(buf)) {
+		cifs_reconnect(server);
+		wake_up(&server->response_q);
+		return -1;
+	}
+
 	if (server->ops->is_status_pending &&
 	    server->ops->is_status_pending(buf, server, length))
 		return -1;
@@ -919,10 +943,19 @@ cifs_demultiplex_thread(void *p)
 
 		server->lstrp = jiffies;
 		if (mid_entry != NULL) {
+			if ((mid_entry->mid_flags & MID_WAIT_CANCELLED) &&
+			     mid_entry->mid_state == MID_RESPONSE_RECEIVED &&
+					server->ops->handle_cancelled_mid)
+				server->ops->handle_cancelled_mid(
+							mid_entry->resp_buf,
+							server);
+
 			if (!mid_entry->multiRsp || mid_entry->multiEnd)
 				mid_entry->callback(mid_entry);
-		} else if (!server->ops->is_oplock_break ||
-			   !server->ops->is_oplock_break(buf, server)) {
+		} else if (server->ops->is_oplock_break &&
+			   server->ops->is_oplock_break(buf, server)) {
+			cifs_dbg(FYI, "Received oplock break\n");
+		} else {
 			cifs_dbg(VFS, "No task to wake, unknown frame received! NumMids %d\n",
 				 atomic_read(&midCount));
 			cifs_dump_mem("Received Data is: ", buf,
@@ -2111,8 +2144,8 @@ cifs_find_tcp_session(struct smb_vol *vo
 	return NULL;
 }
 
-static void
-cifs_put_tcp_session(struct TCP_Server_Info *server)
+void
+cifs_put_tcp_session(struct TCP_Server_Info *server, int from_reconnect)
 {
 	struct task_struct *task;
 
@@ -2129,6 +2162,19 @@ cifs_put_tcp_session(struct TCP_Server_I
 
 	cancel_delayed_work_sync(&server->echo);
 
+#ifdef CONFIG_CIFS_SMB2
+	if (from_reconnect)
+		/*
+		 * Avoid deadlock here: reconnect work calls
+		 * cifs_put_tcp_session() at its end. Need to be sure
+		 * that reconnect work does nothing with server pointer after
+		 * that step.
+		 */
+		cancel_delayed_work(&server->reconnect);
+	else
+		cancel_delayed_work_sync(&server->reconnect);
+#endif
+
 	spin_lock(&GlobalMid_Lock);
 	server->tcpStatus = CifsExiting;
 	spin_unlock(&GlobalMid_Lock);
@@ -2193,12 +2239,16 @@ cifs_get_tcp_session(struct smb_vol *vol
 	INIT_LIST_HEAD(&tcp_ses->tcp_ses_list);
 	INIT_LIST_HEAD(&tcp_ses->smb_ses_list);
 	INIT_DELAYED_WORK(&tcp_ses->echo, cifs_echo_request);
+#ifdef CONFIG_CIFS_SMB2
+	INIT_DELAYED_WORK(&tcp_ses->reconnect, smb2_reconnect_server);
+	mutex_init(&tcp_ses->reconnect_mutex);
+#endif
 	memcpy(&tcp_ses->srcaddr, &volume_info->srcaddr,
 	       sizeof(tcp_ses->srcaddr));
 	memcpy(&tcp_ses->dstaddr, &volume_info->dstaddr,
 		sizeof(tcp_ses->dstaddr));
 #ifdef CONFIG_CIFS_SMB2
-	get_random_bytes(tcp_ses->client_guid, SMB2_CLIENT_GUID_SIZE);
+	generate_random_uuid(tcp_ses->client_guid);
 #endif
 	/*
 	 * at this point we are the only ones with the pointer
@@ -2345,7 +2395,7 @@ cifs_put_smb_ses(struct cifs_ses *ses)
 	spin_unlock(&cifs_tcp_ses_lock);
 
 	sesInfoFree(ses);
-	cifs_put_tcp_session(server);
+	cifs_put_tcp_session(server, 0);
 }
 
 #ifdef CONFIG_KEYS
@@ -2519,7 +2569,7 @@ cifs_get_smb_ses(struct TCP_Server_Info
 		mutex_unlock(&ses->session_mutex);
 
 		/* existing SMB ses has a server reference already */
-		cifs_put_tcp_session(server);
+		cifs_put_tcp_session(server, 0);
 		free_xid(xid);
 		return ses;
 	}
@@ -2609,7 +2659,7 @@ cifs_find_tcon(struct cifs_ses *ses, con
 	return NULL;
 }
 
-static void
+void
 cifs_put_tcon(struct cifs_tcon *tcon)
 {
 	unsigned int xid;
@@ -3515,6 +3565,44 @@ cifs_get_volume_info(char *mount_data, c
 	return volume_info;
 }
 
+static int
+cifs_are_all_path_components_accessible(struct TCP_Server_Info *server,
+					unsigned int xid,
+					struct cifs_tcon *tcon,
+					struct cifs_sb_info *cifs_sb,
+					char *full_path)
+{
+	int rc;
+	char *s;
+	char sep, tmp;
+
+	sep = CIFS_DIR_SEP(cifs_sb);
+	s = full_path;
+
+	rc = server->ops->is_path_accessible(xid, tcon, cifs_sb, "");
+	while (rc == 0) {
+		/* skip separators */
+		while (*s == sep)
+			s++;
+		if (!*s)
+			break;
+		/* next separator */
+		while (*s && *s != sep)
+			s++;
+
+		/*
+		 * temporarily null-terminate the path at the end of
+		 * the current component
+		 */
+		tmp = *s;
+		*s = 0;
+		rc = server->ops->is_path_accessible(xid, tcon, cifs_sb,
+						     full_path);
+		*s = tmp;
+	}
+	return rc;
+}
+
 int
 cifs_mount(struct cifs_sb_info *cifs_sb, struct smb_vol *volume_info)
 {
@@ -3652,6 +3740,18 @@ remote_path_check:
 			kfree(full_path);
 			goto mount_fail_check;
 		}
+
+		if (rc != -EREMOTE) {
+			rc = cifs_are_all_path_components_accessible(server,
+							     xid, tcon, cifs_sb,
+							     full_path);
+			if (rc != 0) {
+				cifs_dbg(VFS, "cannot query dirs between root and final path, "
+					 "enabling CIFS_MOUNT_USE_PREFIX_PATH\n");
+				cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_USE_PREFIX_PATH;
+				rc = 0;
+			}
+		}
 		kfree(full_path);
 	}
 
@@ -3715,7 +3815,7 @@ mount_fail_check:
 		else if (ses)
 			cifs_put_smb_ses(ses);
 		else
-			cifs_put_tcp_session(server);
+			cifs_put_tcp_session(server, 0);
 		bdi_destroy(&cifs_sb->bdi);
 	}
 
@@ -3921,6 +4021,7 @@ cifs_umount(struct cifs_sb_info *cifs_sb
 
 	bdi_destroy(&cifs_sb->bdi);
 	kfree(cifs_sb->mountdata);
+	kfree(cifs_sb->prepath);
 	call_rcu(&cifs_sb->rcu, delayed_free);
 }
 
@@ -3966,6 +4067,14 @@ cifs_setup_session(const unsigned int xi
 	cifs_dbg(FYI, "Security Mode: 0x%x Capabilities: 0x%x TimeAdjust: %d\n",
 		 server->sec_mode, server->capabilities, server->timeAdj);
 
+	if (ses->auth_key.response) {
+		cifs_dbg(VFS, "Free previous auth_key.response = %p\n",
+			 ses->auth_key.response);
+		kfree(ses->auth_key.response);
+		ses->auth_key.response = NULL;
+		ses->auth_key.len = 0;
+	}
+
 	if (server->ops->sess_setup)
 		rc = server->ops->sess_setup(xid, ses, nls_info);
 
@@ -4025,7 +4134,7 @@ cifs_construct_tcon(struct cifs_sb_info
 	ses = cifs_get_smb_ses(master_tcon->ses->server, vol_info);
 	if (IS_ERR(ses)) {
 		tcon = (struct cifs_tcon *)ses;
-		cifs_put_tcp_session(master_tcon->ses->server);
+		cifs_put_tcp_session(master_tcon->ses->server, 0);
 		goto out;
 	}
 
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/cifs/dir.c linux-libre-4.4.107-gnu/fs/cifs/dir.c
--- linux-libre-4.4-gnu/fs/cifs/dir.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/cifs/dir.c	2017-12-20 04:05:01.000000000 -0500
@@ -84,6 +84,7 @@ build_path_from_dentry(struct dentry *di
 	struct dentry *temp;
 	int namelen;
 	int dfsplen;
+	int pplen = 0;
 	char *full_path;
 	char dirsep;
 	struct cifs_sb_info *cifs_sb = CIFS_SB(direntry->d_sb);
@@ -95,8 +96,12 @@ build_path_from_dentry(struct dentry *di
 		dfsplen = strnlen(tcon->treeName, MAX_TREE_SIZE + 1);
 	else
 		dfsplen = 0;
+
+	if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_USE_PREFIX_PATH)
+		pplen = cifs_sb->prepath ? strlen(cifs_sb->prepath) + 1 : 0;
+
 cifs_bp_rename_retry:
-	namelen = dfsplen;
+	namelen = dfsplen + pplen;
 	seq = read_seqbegin(&rename_lock);
 	rcu_read_lock();
 	for (temp = direntry; !IS_ROOT(temp);) {
@@ -137,7 +142,7 @@ cifs_bp_rename_retry:
 		}
 	}
 	rcu_read_unlock();
-	if (namelen != dfsplen || read_seqretry(&rename_lock, seq)) {
+	if (namelen != dfsplen + pplen || read_seqretry(&rename_lock, seq)) {
 		cifs_dbg(FYI, "did not end path lookup where expected. namelen=%ddfsplen=%d\n",
 			 namelen, dfsplen);
 		/* presumably this is only possible if racing with a rename
@@ -153,6 +158,17 @@ cifs_bp_rename_retry:
 	   those safely to '/' if any are found in the middle of the prepath */
 	/* BB test paths to Windows with '/' in the midst of prepath */
 
+	if (pplen) {
+		int i;
+
+		cifs_dbg(FYI, "using cifs_sb prepath <%s>\n", cifs_sb->prepath);
+		memcpy(full_path+dfsplen+1, cifs_sb->prepath, pplen-1);
+		full_path[dfsplen] = '\\';
+		for (i = 0; i < pplen-1; i++)
+			if (full_path[dfsplen+1+i] == '/')
+				full_path[dfsplen+1+i] = CIFS_DIR_SEP(cifs_sb);
+	}
+
 	if (dfsplen) {
 		strncpy(full_path, tcon->treeName, dfsplen);
 		if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_POSIX_PATHS) {
@@ -167,15 +183,21 @@ cifs_bp_rename_retry:
 }
 
 /*
+ * Don't allow path components longer than the server max.
  * Don't allow the separator character in a path component.
  * The VFS will not allow "/", but "\" is allowed by posix.
  */
 static int
-check_name(struct dentry *direntry)
+check_name(struct dentry *direntry, struct cifs_tcon *tcon)
 {
 	struct cifs_sb_info *cifs_sb = CIFS_SB(direntry->d_sb);
 	int i;
 
+	if (unlikely(tcon->fsAttrInfo.MaxPathNameComponentLength &&
+		     direntry->d_name.len >
+		     le32_to_cpu(tcon->fsAttrInfo.MaxPathNameComponentLength)))
+		return -ENAMETOOLONG;
+
 	if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_POSIX_PATHS)) {
 		for (i = 0; i < direntry->d_name.len; i++) {
 			if (direntry->d_name.name[i] == '\\') {
@@ -229,6 +251,13 @@ cifs_do_create(struct inode *inode, stru
 				goto cifs_create_get_file_info;
 			}
 
+			if (S_ISDIR(newinode->i_mode)) {
+				CIFSSMBClose(xid, tcon, fid->netfid);
+				iput(newinode);
+				rc = -EISDIR;
+				goto out;
+			}
+
 			if (!S_ISREG(newinode->i_mode)) {
 				/*
 				 * The server may allow us to open things like
@@ -399,10 +428,14 @@ cifs_create_set_dentry:
 	if (rc != 0) {
 		cifs_dbg(FYI, "Create worked, get_inode_info failed rc = %d\n",
 			 rc);
-		if (server->ops->close)
-			server->ops->close(xid, tcon, fid);
-		goto out;
+		goto out_err;
+	}
+
+	if (S_ISDIR(newinode->i_mode)) {
+		rc = -EISDIR;
+		goto out_err;
 	}
+
 	d_drop(direntry);
 	d_add(direntry, newinode);
 
@@ -410,6 +443,13 @@ out:
 	kfree(buf);
 	kfree(full_path);
 	return rc;
+
+out_err:
+	if (server->ops->close)
+		server->ops->close(xid, tcon, fid);
+	if (newinode)
+		iput(newinode);
+	goto out;
 }
 
 int
@@ -455,10 +495,6 @@ cifs_atomic_open(struct inode *inode, st
 		return finish_no_open(file, res);
 	}
 
-	rc = check_name(direntry);
-	if (rc)
-		return rc;
-
 	xid = get_xid();
 
 	cifs_dbg(FYI, "parent inode = 0x%p name is: %pd and dentry = 0x%p\n",
@@ -471,6 +507,11 @@ cifs_atomic_open(struct inode *inode, st
 	}
 
 	tcon = tlink_tcon(tlink);
+
+	rc = check_name(direntry, tcon);
+	if (rc)
+		goto out;
+
 	server = tcon->ses->server;
 
 	if (server->ops->new_lease_key)
@@ -731,7 +772,7 @@ cifs_lookup(struct inode *parent_dir_ino
 	}
 	pTcon = tlink_tcon(tlink);
 
-	rc = check_name(direntry);
+	rc = check_name(direntry, pTcon);
 	if (rc)
 		goto lookup_out;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/cifs/file.c linux-libre-4.4.107-gnu/fs/cifs/file.c
--- linux-libre-4.4-gnu/fs/cifs/file.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/cifs/file.c	2017-12-20 04:05:01.000000000 -0500
@@ -224,6 +224,13 @@ cifs_nt_open(char *full_path, struct ino
 	if (backup_cred(cifs_sb))
 		create_options |= CREATE_OPEN_BACKUP_INTENT;
 
+	/* O_SYNC also has bit for O_DSYNC so following check picks up either */
+	if (f_flags & O_SYNC)
+		create_options |= CREATE_WRITE_THROUGH;
+
+	if (f_flags & O_DIRECT)
+		create_options |= CREATE_NO_BUFFER;
+
 	oparms.tcon = tcon;
 	oparms.cifs_sb = cifs_sb;
 	oparms.desired_access = desired_access;
@@ -305,6 +312,7 @@ cifs_new_fileinfo(struct cifs_fid *fid,
 	cfile->tlink = cifs_get_tlink(tlink);
 	INIT_WORK(&cfile->oplock_break, cifs_oplock_break);
 	mutex_init(&cfile->fh_mutex);
+	spin_lock_init(&cfile->file_info_lock);
 
 	cifs_sb_active(inode->i_sb);
 
@@ -317,7 +325,7 @@ cifs_new_fileinfo(struct cifs_fid *fid,
 		oplock = 0;
 	}
 
-	spin_lock(&cifs_file_list_lock);
+	spin_lock(&tcon->open_file_lock);
 	if (fid->pending_open->oplock != CIFS_OPLOCK_NO_CHANGE && oplock)
 		oplock = fid->pending_open->oplock;
 	list_del(&fid->pending_open->olist);
@@ -326,12 +334,13 @@ cifs_new_fileinfo(struct cifs_fid *fid,
 	server->ops->set_fid(cfile, fid, oplock);
 
 	list_add(&cfile->tlist, &tcon->openFileList);
+
 	/* if readable file instance put first in list*/
 	if (file->f_mode & FMODE_READ)
 		list_add(&cfile->flist, &cinode->openFileList);
 	else
 		list_add_tail(&cfile->flist, &cinode->openFileList);
-	spin_unlock(&cifs_file_list_lock);
+	spin_unlock(&tcon->open_file_lock);
 
 	if (fid->purge_cache)
 		cifs_zap_mapping(inode);
@@ -343,16 +352,16 @@ cifs_new_fileinfo(struct cifs_fid *fid,
 struct cifsFileInfo *
 cifsFileInfo_get(struct cifsFileInfo *cifs_file)
 {
-	spin_lock(&cifs_file_list_lock);
+	spin_lock(&cifs_file->file_info_lock);
 	cifsFileInfo_get_locked(cifs_file);
-	spin_unlock(&cifs_file_list_lock);
+	spin_unlock(&cifs_file->file_info_lock);
 	return cifs_file;
 }
 
 /*
  * Release a reference on the file private data. This may involve closing
  * the filehandle out on the server. Must be called without holding
- * cifs_file_list_lock.
+ * tcon->open_file_lock and cifs_file->file_info_lock.
  */
 void cifsFileInfo_put(struct cifsFileInfo *cifs_file)
 {
@@ -367,11 +376,15 @@ void cifsFileInfo_put(struct cifsFileInf
 	struct cifs_pending_open open;
 	bool oplock_break_cancelled;
 
-	spin_lock(&cifs_file_list_lock);
+	spin_lock(&tcon->open_file_lock);
+
+	spin_lock(&cifs_file->file_info_lock);
 	if (--cifs_file->count > 0) {
-		spin_unlock(&cifs_file_list_lock);
+		spin_unlock(&cifs_file->file_info_lock);
+		spin_unlock(&tcon->open_file_lock);
 		return;
 	}
+	spin_unlock(&cifs_file->file_info_lock);
 
 	if (server->ops->get_lease_key)
 		server->ops->get_lease_key(inode, &fid);
@@ -395,7 +408,8 @@ void cifsFileInfo_put(struct cifsFileInf
 			set_bit(CIFS_INO_INVALID_MAPPING, &cifsi->flags);
 		cifs_set_oplock_level(cifsi, 0);
 	}
-	spin_unlock(&cifs_file_list_lock);
+
+	spin_unlock(&tcon->open_file_lock);
 
 	oplock_break_cancelled = cancel_work_sync(&cifs_file->oplock_break);
 
@@ -772,10 +786,10 @@ int cifs_closedir(struct inode *inode, s
 	server = tcon->ses->server;
 
 	cifs_dbg(FYI, "Freeing private data in close dir\n");
-	spin_lock(&cifs_file_list_lock);
+	spin_lock(&cfile->file_info_lock);
 	if (server->ops->dir_needs_close(cfile)) {
 		cfile->invalidHandle = true;
-		spin_unlock(&cifs_file_list_lock);
+		spin_unlock(&cfile->file_info_lock);
 		if (server->ops->close_dir)
 			rc = server->ops->close_dir(xid, tcon, &cfile->fid);
 		else
@@ -784,7 +798,7 @@ int cifs_closedir(struct inode *inode, s
 		/* not much we can do if it fails anyway, ignore rc */
 		rc = 0;
 	} else
-		spin_unlock(&cifs_file_list_lock);
+		spin_unlock(&cfile->file_info_lock);
 
 	buf = cfile->srch_inf.ntwrk_buf_start;
 	if (buf) {
@@ -1720,12 +1734,13 @@ struct cifsFileInfo *find_readable_file(
 {
 	struct cifsFileInfo *open_file = NULL;
 	struct cifs_sb_info *cifs_sb = CIFS_SB(cifs_inode->vfs_inode.i_sb);
+	struct cifs_tcon *tcon = cifs_sb_master_tcon(cifs_sb);
 
 	/* only filter by fsuid on multiuser mounts */
 	if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MULTIUSER))
 		fsuid_only = false;
 
-	spin_lock(&cifs_file_list_lock);
+	spin_lock(&tcon->open_file_lock);
 	/* we could simply get the first_list_entry since write-only entries
 	   are always at the end of the list but since the first entry might
 	   have a close pending, we go through the whole list */
@@ -1736,8 +1751,8 @@ struct cifsFileInfo *find_readable_file(
 			if (!open_file->invalidHandle) {
 				/* found a good file */
 				/* lock it so it will not be closed on us */
-				cifsFileInfo_get_locked(open_file);
-				spin_unlock(&cifs_file_list_lock);
+				cifsFileInfo_get(open_file);
+				spin_unlock(&tcon->open_file_lock);
 				return open_file;
 			} /* else might as well continue, and look for
 			     another, or simply have the caller reopen it
@@ -1745,7 +1760,7 @@ struct cifsFileInfo *find_readable_file(
 		} else /* write only file */
 			break; /* write only files are last so must be done */
 	}
-	spin_unlock(&cifs_file_list_lock);
+	spin_unlock(&tcon->open_file_lock);
 	return NULL;
 }
 
@@ -1754,6 +1769,7 @@ struct cifsFileInfo *find_writable_file(
 {
 	struct cifsFileInfo *open_file, *inv_file = NULL;
 	struct cifs_sb_info *cifs_sb;
+	struct cifs_tcon *tcon;
 	bool any_available = false;
 	int rc;
 	unsigned int refind = 0;
@@ -1769,15 +1785,16 @@ struct cifsFileInfo *find_writable_file(
 	}
 
 	cifs_sb = CIFS_SB(cifs_inode->vfs_inode.i_sb);
+	tcon = cifs_sb_master_tcon(cifs_sb);
 
 	/* only filter by fsuid on multiuser mounts */
 	if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MULTIUSER))
 		fsuid_only = false;
 
-	spin_lock(&cifs_file_list_lock);
+	spin_lock(&tcon->open_file_lock);
 refind_writable:
 	if (refind > MAX_REOPEN_ATT) {
-		spin_unlock(&cifs_file_list_lock);
+		spin_unlock(&tcon->open_file_lock);
 		return NULL;
 	}
 	list_for_each_entry(open_file, &cifs_inode->openFileList, flist) {
@@ -1788,8 +1805,8 @@ refind_writable:
 		if (OPEN_FMODE(open_file->f_flags) & FMODE_WRITE) {
 			if (!open_file->invalidHandle) {
 				/* found a good writable file */
-				cifsFileInfo_get_locked(open_file);
-				spin_unlock(&cifs_file_list_lock);
+				cifsFileInfo_get(open_file);
+				spin_unlock(&tcon->open_file_lock);
 				return open_file;
 			} else {
 				if (!inv_file)
@@ -1805,24 +1822,24 @@ refind_writable:
 
 	if (inv_file) {
 		any_available = false;
-		cifsFileInfo_get_locked(inv_file);
+		cifsFileInfo_get(inv_file);
 	}
 
-	spin_unlock(&cifs_file_list_lock);
+	spin_unlock(&tcon->open_file_lock);
 
 	if (inv_file) {
 		rc = cifs_reopen_file(inv_file, false);
 		if (!rc)
 			return inv_file;
 		else {
-			spin_lock(&cifs_file_list_lock);
+			spin_lock(&tcon->open_file_lock);
 			list_move_tail(&inv_file->flist,
 					&cifs_inode->openFileList);
-			spin_unlock(&cifs_file_list_lock);
+			spin_unlock(&tcon->open_file_lock);
 			cifsFileInfo_put(inv_file);
-			spin_lock(&cifs_file_list_lock);
 			++refind;
 			inv_file = NULL;
+			spin_lock(&tcon->open_file_lock);
 			goto refind_writable;
 		}
 	}
@@ -2535,7 +2552,7 @@ cifs_write_from_iter(loff_t offset, size
 		wdata->credits = credits;
 
 		if (!wdata->cfile->invalidHandle ||
-		    !cifs_reopen_file(wdata->cfile, false))
+		    !(rc = cifs_reopen_file(wdata->cfile, false)))
 			rc = server->ops->async_writev(wdata,
 					cifs_uncached_writedata_release);
 		if (rc) {
@@ -2948,7 +2965,7 @@ cifs_send_async_read(loff_t offset, size
 		rdata->credits = credits;
 
 		if (!rdata->cfile->invalidHandle ||
-		    !cifs_reopen_file(rdata->cfile, true))
+		    !(rc = cifs_reopen_file(rdata->cfile, true)))
 			rc = server->ops->async_readv(rdata);
 error:
 		if (rc) {
@@ -3534,7 +3551,7 @@ static int cifs_readpages(struct file *f
 		}
 
 		if (!rdata->cfile->invalidHandle ||
-		    !cifs_reopen_file(rdata->cfile, true))
+		    !(rc = cifs_reopen_file(rdata->cfile, true)))
 			rc = server->ops->async_readv(rdata);
 		if (rc) {
 			add_credits_and_wake_if(server, rdata->credits, 0);
@@ -3632,15 +3649,17 @@ static int cifs_readpage(struct file *fi
 static int is_inode_writable(struct cifsInodeInfo *cifs_inode)
 {
 	struct cifsFileInfo *open_file;
+	struct cifs_tcon *tcon =
+		cifs_sb_master_tcon(CIFS_SB(cifs_inode->vfs_inode.i_sb));
 
-	spin_lock(&cifs_file_list_lock);
+	spin_lock(&tcon->open_file_lock);
 	list_for_each_entry(open_file, &cifs_inode->openFileList, flist) {
 		if (OPEN_FMODE(open_file->f_flags) & FMODE_WRITE) {
-			spin_unlock(&cifs_file_list_lock);
+			spin_unlock(&tcon->open_file_lock);
 			return 1;
 		}
 	}
-	spin_unlock(&cifs_file_list_lock);
+	spin_unlock(&tcon->open_file_lock);
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/cifs/inode.c linux-libre-4.4.107-gnu/fs/cifs/inode.c
--- linux-libre-4.4-gnu/fs/cifs/inode.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/cifs/inode.c	2017-12-20 04:05:01.000000000 -0500
@@ -982,10 +982,26 @@ struct inode *cifs_root_iget(struct supe
 	struct inode *inode = NULL;
 	long rc;
 	struct cifs_tcon *tcon = cifs_sb_master_tcon(cifs_sb);
+	char *path = NULL;
+	int len;
+
+	if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_USE_PREFIX_PATH)
+	    && cifs_sb->prepath) {
+		len = strlen(cifs_sb->prepath);
+		path = kzalloc(len + 2 /* leading sep + null */, GFP_KERNEL);
+		if (path == NULL)
+			return ERR_PTR(-ENOMEM);
+		path[0] = '/';
+		memcpy(path+1, cifs_sb->prepath, len);
+	} else {
+		path = kstrdup("", GFP_KERNEL);
+		if (path == NULL)
+			return ERR_PTR(-ENOMEM);
+	}
 
 	xid = get_xid();
 	if (tcon->unix_ext) {
-		rc = cifs_get_inode_info_unix(&inode, "", sb, xid);
+		rc = cifs_get_inode_info_unix(&inode, path, sb, xid);
 		/* some servers mistakenly claim POSIX support */
 		if (rc != -EOPNOTSUPP)
 			goto iget_no_retry;
@@ -993,7 +1009,8 @@ struct inode *cifs_root_iget(struct supe
 		tcon->unix_ext = false;
 	}
 
-	rc = cifs_get_inode_info(&inode, "", NULL, sb, xid, NULL);
+	convert_delimiter(path, CIFS_DIR_SEP(cifs_sb));
+	rc = cifs_get_inode_info(&inode, path, NULL, sb, xid, NULL);
 
 iget_no_retry:
 	if (!inode) {
@@ -1022,6 +1039,7 @@ iget_no_retry:
 	}
 
 out:
+	kfree(path);
 	/* can not call macro free_xid here since in a void func
 	 * TODO: This is no longer true
 	 */
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/cifs/ioctl.c linux-libre-4.4.107-gnu/fs/cifs/ioctl.c
--- linux-libre-4.4-gnu/fs/cifs/ioctl.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/cifs/ioctl.c	2017-12-20 04:05:01.000000000 -0500
@@ -272,6 +272,8 @@ long cifs_ioctl(struct file *filep, unsi
 				rc = -EOPNOTSUPP;
 			break;
 		case CIFS_IOC_GET_MNT_INFO:
+			if (pSMBFile == NULL)
+				break;
 			tcon = tlink_tcon(pSMBFile->tlink);
 			rc = smb_mnt_get_fsinfo(xid, tcon, (void __user *)arg);
 			break;
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/cifs/misc.c linux-libre-4.4.107-gnu/fs/cifs/misc.c
--- linux-libre-4.4-gnu/fs/cifs/misc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/cifs/misc.c	2017-12-20 04:05:01.000000000 -0500
@@ -120,6 +120,7 @@ tconInfoAlloc(void)
 		++ret_buf->tc_count;
 		INIT_LIST_HEAD(&ret_buf->openFileList);
 		INIT_LIST_HEAD(&ret_buf->tcon_list);
+		spin_lock_init(&ret_buf->open_file_lock);
 #ifdef CONFIG_CIFS_STATS
 		spin_lock_init(&ret_buf->stat_lock);
 #endif
@@ -465,7 +466,7 @@ is_valid_oplock_break(char *buffer, stru
 				continue;
 
 			cifs_stats_inc(&tcon->stats.cifs_stats.num_oplock_brks);
-			spin_lock(&cifs_file_list_lock);
+			spin_lock(&tcon->open_file_lock);
 			list_for_each(tmp2, &tcon->openFileList) {
 				netfile = list_entry(tmp2, struct cifsFileInfo,
 						     tlist);
@@ -495,11 +496,11 @@ is_valid_oplock_break(char *buffer, stru
 					   &netfile->oplock_break);
 				netfile->oplock_break_cancelled = false;
 
-				spin_unlock(&cifs_file_list_lock);
+				spin_unlock(&tcon->open_file_lock);
 				spin_unlock(&cifs_tcp_ses_lock);
 				return true;
 			}
-			spin_unlock(&cifs_file_list_lock);
+			spin_unlock(&tcon->open_file_lock);
 			spin_unlock(&cifs_tcp_ses_lock);
 			cifs_dbg(FYI, "No matching file for oplock break\n");
 			return true;
@@ -613,9 +614,9 @@ backup_cred(struct cifs_sb_info *cifs_sb
 void
 cifs_del_pending_open(struct cifs_pending_open *open)
 {
-	spin_lock(&cifs_file_list_lock);
+	spin_lock(&tlink_tcon(open->tlink)->open_file_lock);
 	list_del(&open->olist);
-	spin_unlock(&cifs_file_list_lock);
+	spin_unlock(&tlink_tcon(open->tlink)->open_file_lock);
 }
 
 void
@@ -635,7 +636,7 @@ void
 cifs_add_pending_open(struct cifs_fid *fid, struct tcon_link *tlink,
 		      struct cifs_pending_open *open)
 {
-	spin_lock(&cifs_file_list_lock);
+	spin_lock(&tlink_tcon(tlink)->open_file_lock);
 	cifs_add_pending_open_locked(fid, tlink, open);
-	spin_unlock(&cifs_file_list_lock);
+	spin_unlock(&tlink_tcon(open->tlink)->open_file_lock);
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/cifs/ntlmssp.h linux-libre-4.4.107-gnu/fs/cifs/ntlmssp.h
--- linux-libre-4.4-gnu/fs/cifs/ntlmssp.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/cifs/ntlmssp.h	2017-12-20 04:05:01.000000000 -0500
@@ -133,6 +133,6 @@ typedef struct _AUTHENTICATE_MESSAGE {
 
 int decode_ntlmssp_challenge(char *bcc_ptr, int blob_len, struct cifs_ses *ses);
 void build_ntlmssp_negotiate_blob(unsigned char *pbuffer, struct cifs_ses *ses);
-int build_ntlmssp_auth_blob(unsigned char *pbuffer, u16 *buflen,
+int build_ntlmssp_auth_blob(unsigned char **pbuffer, u16 *buflen,
 			struct cifs_ses *ses,
 			const struct nls_table *nls_cp);
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/cifs/readdir.c linux-libre-4.4.107-gnu/fs/cifs/readdir.c
--- linux-libre-4.4-gnu/fs/cifs/readdir.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/cifs/readdir.c	2017-12-20 04:05:01.000000000 -0500
@@ -282,6 +282,7 @@ initiate_cifs_search(const unsigned int
 			rc = -ENOMEM;
 			goto error_exit;
 		}
+		spin_lock_init(&cifsFile->file_info_lock);
 		file->private_data = cifsFile;
 		cifsFile->tlink = cifs_get_tlink(tlink);
 		tcon = tlink_tcon(tlink);
@@ -594,14 +595,14 @@ find_cifs_entry(const unsigned int xid,
 	     is_dir_changed(file)) || (index_to_find < first_entry_in_buffer)) {
 		/* close and restart search */
 		cifs_dbg(FYI, "search backing up - close and restart search\n");
-		spin_lock(&cifs_file_list_lock);
+		spin_lock(&cfile->file_info_lock);
 		if (server->ops->dir_needs_close(cfile)) {
 			cfile->invalidHandle = true;
-			spin_unlock(&cifs_file_list_lock);
+			spin_unlock(&cfile->file_info_lock);
 			if (server->ops->close_dir)
 				server->ops->close_dir(xid, tcon, &cfile->fid);
 		} else
-			spin_unlock(&cifs_file_list_lock);
+			spin_unlock(&cfile->file_info_lock);
 		if (cfile->srch_inf.ntwrk_buf_start) {
 			cifs_dbg(FYI, "freeing SMB ff cache buf on search rewind\n");
 			if (cfile->srch_inf.smallBuf)
@@ -847,6 +848,7 @@ int cifs_readdir(struct file *file, stru
 		 * if buggy server returns . and .. late do we want to
 		 * check for that here?
 		 */
+		*tmp_buf = 0;
 		rc = cifs_filldir(current_entry, file, ctx,
 				  tmp_buf, max_len);
 		if (rc) {
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/cifs/sess.c linux-libre-4.4.107-gnu/fs/cifs/sess.c
--- linux-libre-4.4-gnu/fs/cifs/sess.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/cifs/sess.c	2017-12-20 04:05:01.000000000 -0500
@@ -364,19 +364,43 @@ void build_ntlmssp_negotiate_blob(unsign
 	sec_blob->DomainName.MaximumLength = 0;
 }
 
-/* We do not malloc the blob, it is passed in pbuffer, because its
-   maximum possible size is fixed and small, making this approach cleaner.
-   This function returns the length of the data in the blob */
-int build_ntlmssp_auth_blob(unsigned char *pbuffer,
+static int size_of_ntlmssp_blob(struct cifs_ses *ses)
+{
+	int sz = sizeof(AUTHENTICATE_MESSAGE) + ses->auth_key.len
+		- CIFS_SESS_KEY_SIZE + CIFS_CPHTXT_SIZE + 2;
+
+	if (ses->domainName)
+		sz += 2 * strnlen(ses->domainName, CIFS_MAX_DOMAINNAME_LEN);
+	else
+		sz += 2;
+
+	if (ses->user_name)
+		sz += 2 * strnlen(ses->user_name, CIFS_MAX_USERNAME_LEN);
+	else
+		sz += 2;
+
+	return sz;
+}
+
+int build_ntlmssp_auth_blob(unsigned char **pbuffer,
 					u16 *buflen,
 				   struct cifs_ses *ses,
 				   const struct nls_table *nls_cp)
 {
 	int rc;
-	AUTHENTICATE_MESSAGE *sec_blob = (AUTHENTICATE_MESSAGE *)pbuffer;
+	AUTHENTICATE_MESSAGE *sec_blob;
 	__u32 flags;
 	unsigned char *tmp;
 
+	rc = setup_ntlmv2_rsp(ses, nls_cp);
+	if (rc) {
+		cifs_dbg(VFS, "Error %d during NTLMSSP authentication\n", rc);
+		*buflen = 0;
+		goto setup_ntlmv2_ret;
+	}
+	*pbuffer = kmalloc(size_of_ntlmssp_blob(ses), GFP_KERNEL);
+	sec_blob = (AUTHENTICATE_MESSAGE *)*pbuffer;
+
 	memcpy(sec_blob->Signature, NTLMSSP_SIGNATURE, 8);
 	sec_blob->MessageType = NtLmAuthenticate;
 
@@ -391,7 +415,7 @@ int build_ntlmssp_auth_blob(unsigned cha
 			flags |= NTLMSSP_NEGOTIATE_KEY_XCH;
 	}
 
-	tmp = pbuffer + sizeof(AUTHENTICATE_MESSAGE);
+	tmp = *pbuffer + sizeof(AUTHENTICATE_MESSAGE);
 	sec_blob->NegotiateFlags = cpu_to_le32(flags);
 
 	sec_blob->LmChallengeResponse.BufferOffset =
@@ -399,23 +423,27 @@ int build_ntlmssp_auth_blob(unsigned cha
 	sec_blob->LmChallengeResponse.Length = 0;
 	sec_blob->LmChallengeResponse.MaximumLength = 0;
 
-	sec_blob->NtChallengeResponse.BufferOffset = cpu_to_le32(tmp - pbuffer);
-	rc = setup_ntlmv2_rsp(ses, nls_cp);
-	if (rc) {
-		cifs_dbg(VFS, "Error %d during NTLMSSP authentication\n", rc);
-		goto setup_ntlmv2_ret;
-	}
-	memcpy(tmp, ses->auth_key.response + CIFS_SESS_KEY_SIZE,
-			ses->auth_key.len - CIFS_SESS_KEY_SIZE);
-	tmp += ses->auth_key.len - CIFS_SESS_KEY_SIZE;
+	sec_blob->NtChallengeResponse.BufferOffset =
+				cpu_to_le32(tmp - *pbuffer);
+	if (ses->user_name != NULL) {
+		memcpy(tmp, ses->auth_key.response + CIFS_SESS_KEY_SIZE,
+				ses->auth_key.len - CIFS_SESS_KEY_SIZE);
+		tmp += ses->auth_key.len - CIFS_SESS_KEY_SIZE;
 
-	sec_blob->NtChallengeResponse.Length =
-			cpu_to_le16(ses->auth_key.len - CIFS_SESS_KEY_SIZE);
-	sec_blob->NtChallengeResponse.MaximumLength =
-			cpu_to_le16(ses->auth_key.len - CIFS_SESS_KEY_SIZE);
+		sec_blob->NtChallengeResponse.Length =
+				cpu_to_le16(ses->auth_key.len - CIFS_SESS_KEY_SIZE);
+		sec_blob->NtChallengeResponse.MaximumLength =
+				cpu_to_le16(ses->auth_key.len - CIFS_SESS_KEY_SIZE);
+	} else {
+		/*
+		 * don't send an NT Response for anonymous access
+		 */
+		sec_blob->NtChallengeResponse.Length = 0;
+		sec_blob->NtChallengeResponse.MaximumLength = 0;
+	}
 
 	if (ses->domainName == NULL) {
-		sec_blob->DomainName.BufferOffset = cpu_to_le32(tmp - pbuffer);
+		sec_blob->DomainName.BufferOffset = cpu_to_le32(tmp - *pbuffer);
 		sec_blob->DomainName.Length = 0;
 		sec_blob->DomainName.MaximumLength = 0;
 		tmp += 2;
@@ -424,14 +452,14 @@ int build_ntlmssp_auth_blob(unsigned cha
 		len = cifs_strtoUTF16((__le16 *)tmp, ses->domainName,
 				      CIFS_MAX_USERNAME_LEN, nls_cp);
 		len *= 2; /* unicode is 2 bytes each */
-		sec_blob->DomainName.BufferOffset = cpu_to_le32(tmp - pbuffer);
+		sec_blob->DomainName.BufferOffset = cpu_to_le32(tmp - *pbuffer);
 		sec_blob->DomainName.Length = cpu_to_le16(len);
 		sec_blob->DomainName.MaximumLength = cpu_to_le16(len);
 		tmp += len;
 	}
 
 	if (ses->user_name == NULL) {
-		sec_blob->UserName.BufferOffset = cpu_to_le32(tmp - pbuffer);
+		sec_blob->UserName.BufferOffset = cpu_to_le32(tmp - *pbuffer);
 		sec_blob->UserName.Length = 0;
 		sec_blob->UserName.MaximumLength = 0;
 		tmp += 2;
@@ -440,13 +468,13 @@ int build_ntlmssp_auth_blob(unsigned cha
 		len = cifs_strtoUTF16((__le16 *)tmp, ses->user_name,
 				      CIFS_MAX_USERNAME_LEN, nls_cp);
 		len *= 2; /* unicode is 2 bytes each */
-		sec_blob->UserName.BufferOffset = cpu_to_le32(tmp - pbuffer);
+		sec_blob->UserName.BufferOffset = cpu_to_le32(tmp - *pbuffer);
 		sec_blob->UserName.Length = cpu_to_le16(len);
 		sec_blob->UserName.MaximumLength = cpu_to_le16(len);
 		tmp += len;
 	}
 
-	sec_blob->WorkstationName.BufferOffset = cpu_to_le32(tmp - pbuffer);
+	sec_blob->WorkstationName.BufferOffset = cpu_to_le32(tmp - *pbuffer);
 	sec_blob->WorkstationName.Length = 0;
 	sec_blob->WorkstationName.MaximumLength = 0;
 	tmp += 2;
@@ -455,19 +483,19 @@ int build_ntlmssp_auth_blob(unsigned cha
 		(ses->ntlmssp->server_flags & NTLMSSP_NEGOTIATE_EXTENDED_SEC))
 			&& !calc_seckey(ses)) {
 		memcpy(tmp, ses->ntlmssp->ciphertext, CIFS_CPHTXT_SIZE);
-		sec_blob->SessionKey.BufferOffset = cpu_to_le32(tmp - pbuffer);
+		sec_blob->SessionKey.BufferOffset = cpu_to_le32(tmp - *pbuffer);
 		sec_blob->SessionKey.Length = cpu_to_le16(CIFS_CPHTXT_SIZE);
 		sec_blob->SessionKey.MaximumLength =
 				cpu_to_le16(CIFS_CPHTXT_SIZE);
 		tmp += CIFS_CPHTXT_SIZE;
 	} else {
-		sec_blob->SessionKey.BufferOffset = cpu_to_le32(tmp - pbuffer);
+		sec_blob->SessionKey.BufferOffset = cpu_to_le32(tmp - *pbuffer);
 		sec_blob->SessionKey.Length = 0;
 		sec_blob->SessionKey.MaximumLength = 0;
 	}
 
+	*buflen = tmp - *pbuffer;
 setup_ntlmv2_ret:
-	*buflen = tmp - pbuffer;
 	return rc;
 }
 
@@ -670,20 +698,24 @@ sess_auth_lanman(struct sess_data *sess_
 
 	pSMB->req.hdr.Flags2 &= ~SMBFLG2_UNICODE;
 
-	/* no capabilities flags in old lanman negotiation */
-	pSMB->old_req.PasswordLength = cpu_to_le16(CIFS_AUTH_RESP_SIZE);
+	if (ses->user_name != NULL) {
+		/* no capabilities flags in old lanman negotiation */
+		pSMB->old_req.PasswordLength = cpu_to_le16(CIFS_AUTH_RESP_SIZE);
 
-	/* Calculate hash with password and copy into bcc_ptr.
-	 * Encryption Key (stored as in cryptkey) gets used if the
-	 * security mode bit in Negottiate Protocol response states
-	 * to use challenge/response method (i.e. Password bit is 1).
-	 */
-	rc = calc_lanman_hash(ses->password, ses->server->cryptkey,
-			      ses->server->sec_mode & SECMODE_PW_ENCRYPT ?
-			      true : false, lnm_session_key);
+		/* Calculate hash with password and copy into bcc_ptr.
+		 * Encryption Key (stored as in cryptkey) gets used if the
+		 * security mode bit in Negottiate Protocol response states
+		 * to use challenge/response method (i.e. Password bit is 1).
+		 */
+		rc = calc_lanman_hash(ses->password, ses->server->cryptkey,
+				      ses->server->sec_mode & SECMODE_PW_ENCRYPT ?
+				      true : false, lnm_session_key);
 
-	memcpy(bcc_ptr, (char *)lnm_session_key, CIFS_AUTH_RESP_SIZE);
-	bcc_ptr += CIFS_AUTH_RESP_SIZE;
+		memcpy(bcc_ptr, (char *)lnm_session_key, CIFS_AUTH_RESP_SIZE);
+		bcc_ptr += CIFS_AUTH_RESP_SIZE;
+	} else {
+		pSMB->old_req.PasswordLength = 0;
+	}
 
 	/*
 	 * can not sign if LANMAN negotiated so no need
@@ -769,26 +801,31 @@ sess_auth_ntlm(struct sess_data *sess_da
 	capabilities = cifs_ssetup_hdr(ses, pSMB);
 
 	pSMB->req_no_secext.Capabilities = cpu_to_le32(capabilities);
-	pSMB->req_no_secext.CaseInsensitivePasswordLength =
-			cpu_to_le16(CIFS_AUTH_RESP_SIZE);
-	pSMB->req_no_secext.CaseSensitivePasswordLength =
-			cpu_to_le16(CIFS_AUTH_RESP_SIZE);
+	if (ses->user_name != NULL) {
+		pSMB->req_no_secext.CaseInsensitivePasswordLength =
+				cpu_to_le16(CIFS_AUTH_RESP_SIZE);
+		pSMB->req_no_secext.CaseSensitivePasswordLength =
+				cpu_to_le16(CIFS_AUTH_RESP_SIZE);
 
-	/* calculate ntlm response and session key */
-	rc = setup_ntlm_response(ses, sess_data->nls_cp);
-	if (rc) {
-		cifs_dbg(VFS, "Error %d during NTLM authentication\n",
-				 rc);
-		goto out;
-	}
+		/* calculate ntlm response and session key */
+		rc = setup_ntlm_response(ses, sess_data->nls_cp);
+		if (rc) {
+			cifs_dbg(VFS, "Error %d during NTLM authentication\n",
+					 rc);
+			goto out;
+		}
 
-	/* copy ntlm response */
-	memcpy(bcc_ptr, ses->auth_key.response + CIFS_SESS_KEY_SIZE,
-			CIFS_AUTH_RESP_SIZE);
-	bcc_ptr += CIFS_AUTH_RESP_SIZE;
-	memcpy(bcc_ptr, ses->auth_key.response + CIFS_SESS_KEY_SIZE,
-			CIFS_AUTH_RESP_SIZE);
-	bcc_ptr += CIFS_AUTH_RESP_SIZE;
+		/* copy ntlm response */
+		memcpy(bcc_ptr, ses->auth_key.response + CIFS_SESS_KEY_SIZE,
+				CIFS_AUTH_RESP_SIZE);
+		bcc_ptr += CIFS_AUTH_RESP_SIZE;
+		memcpy(bcc_ptr, ses->auth_key.response + CIFS_SESS_KEY_SIZE,
+				CIFS_AUTH_RESP_SIZE);
+		bcc_ptr += CIFS_AUTH_RESP_SIZE;
+	} else {
+		pSMB->req_no_secext.CaseInsensitivePasswordLength = 0;
+		pSMB->req_no_secext.CaseSensitivePasswordLength = 0;
+	}
 
 	if (ses->capabilities & CAP_UNICODE) {
 		/* unicode strings must be word aligned */
@@ -878,22 +915,26 @@ sess_auth_ntlmv2(struct sess_data *sess_
 	/* LM2 password would be here if we supported it */
 	pSMB->req_no_secext.CaseInsensitivePasswordLength = 0;
 
-	/* calculate nlmv2 response and session key */
-	rc = setup_ntlmv2_rsp(ses, sess_data->nls_cp);
-	if (rc) {
-		cifs_dbg(VFS, "Error %d during NTLMv2 authentication\n", rc);
-		goto out;
-	}
+	if (ses->user_name != NULL) {
+		/* calculate nlmv2 response and session key */
+		rc = setup_ntlmv2_rsp(ses, sess_data->nls_cp);
+		if (rc) {
+			cifs_dbg(VFS, "Error %d during NTLMv2 authentication\n", rc);
+			goto out;
+		}
 
-	memcpy(bcc_ptr, ses->auth_key.response + CIFS_SESS_KEY_SIZE,
-			ses->auth_key.len - CIFS_SESS_KEY_SIZE);
-	bcc_ptr += ses->auth_key.len - CIFS_SESS_KEY_SIZE;
+		memcpy(bcc_ptr, ses->auth_key.response + CIFS_SESS_KEY_SIZE,
+				ses->auth_key.len - CIFS_SESS_KEY_SIZE);
+		bcc_ptr += ses->auth_key.len - CIFS_SESS_KEY_SIZE;
 
-	/* set case sensitive password length after tilen may get
-	 * assigned, tilen is 0 otherwise.
-	 */
-	pSMB->req_no_secext.CaseSensitivePasswordLength =
-		cpu_to_le16(ses->auth_key.len - CIFS_SESS_KEY_SIZE);
+		/* set case sensitive password length after tilen may get
+		 * assigned, tilen is 0 otherwise.
+		 */
+		pSMB->req_no_secext.CaseSensitivePasswordLength =
+			cpu_to_le16(ses->auth_key.len - CIFS_SESS_KEY_SIZE);
+	} else {
+		pSMB->req_no_secext.CaseSensitivePasswordLength = 0;
+	}
 
 	if (ses->capabilities & CAP_UNICODE) {
 		if (sess_data->iov[0].iov_len % 2) {
@@ -1245,7 +1286,7 @@ sess_auth_rawntlmssp_authenticate(struct
 	struct cifs_ses *ses = sess_data->ses;
 	__u16 bytes_remaining;
 	char *bcc_ptr;
-	char *ntlmsspblob = NULL;
+	unsigned char *ntlmsspblob = NULL;
 	u16 blob_len;
 
 	cifs_dbg(FYI, "rawntlmssp session setup authenticate phase\n");
@@ -1258,19 +1299,7 @@ sess_auth_rawntlmssp_authenticate(struct
 	/* Build security blob before we assemble the request */
 	pSMB = (SESSION_SETUP_ANDX *)sess_data->iov[0].iov_base;
 	smb_buf = (struct smb_hdr *)pSMB;
-	/*
-	 * 5 is an empirical value, large enough to hold
-	 * authenticate message plus max 10 of av paris,
-	 * domain, user, workstation names, flags, etc.
-	 */
-	ntlmsspblob = kzalloc(5*sizeof(struct _AUTHENTICATE_MESSAGE),
-				GFP_KERNEL);
-	if (!ntlmsspblob) {
-		rc = -ENOMEM;
-		goto out;
-	}
-
-	rc = build_ntlmssp_auth_blob(ntlmsspblob,
+	rc = build_ntlmssp_auth_blob(&ntlmsspblob,
 					&blob_len, ses, sess_data->nls_cp);
 	if (rc)
 		goto out_free_ntlmsspblob;
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/cifs/smb1ops.c linux-libre-4.4.107-gnu/fs/cifs/smb1ops.c
--- linux-libre-4.4-gnu/fs/cifs/smb1ops.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/cifs/smb1ops.c	2017-12-20 04:05:01.000000000 -0500
@@ -849,8 +849,13 @@ cifs_query_dir_first(const unsigned int
 		     struct cifs_fid *fid, __u16 search_flags,
 		     struct cifs_search_info *srch_inf)
 {
-	return CIFSFindFirst(xid, tcon, path, cifs_sb,
-			     &fid->netfid, search_flags, srch_inf, true);
+	int rc;
+
+	rc = CIFSFindFirst(xid, tcon, path, cifs_sb,
+			   &fid->netfid, search_flags, srch_inf, true);
+	if (rc)
+		cifs_dbg(FYI, "find first failed=%d\n", rc);
+	return rc;
 }
 
 static int
@@ -1015,6 +1020,15 @@ cifs_dir_needs_close(struct cifsFileInfo
 	return !cfile->srch_inf.endOfSearch && !cfile->invalidHandle;
 }
 
+static bool
+cifs_can_echo(struct TCP_Server_Info *server)
+{
+	if (server->tcpStatus == CifsGood)
+		return true;
+
+	return false;
+}
+
 struct smb_version_operations smb1_operations = {
 	.send_cancel = send_nt_cancel,
 	.compare_fids = cifs_compare_fids,
@@ -1049,6 +1063,7 @@ struct smb_version_operations smb1_opera
 	.get_dfs_refer = CIFSGetDFSRefer,
 	.qfs_tcon = cifs_qfs_tcon,
 	.is_path_accessible = cifs_is_path_accessible,
+	.can_echo = cifs_can_echo,
 	.query_path_info = cifs_query_path_info,
 	.query_file_info = cifs_query_file_info,
 	.get_srv_inum = cifs_get_srv_inum,
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/cifs/smb2file.c linux-libre-4.4.107-gnu/fs/cifs/smb2file.c
--- linux-libre-4.4-gnu/fs/cifs/smb2file.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/cifs/smb2file.c	2017-12-20 04:05:01.000000000 -0500
@@ -260,7 +260,7 @@ smb2_push_mandatory_locks(struct cifsFil
 	 * and check it for zero before using.
 	 */
 	max_buf = tlink_tcon(cfile->tlink)->ses->server->maxBuf;
-	if (!max_buf) {
+	if (max_buf < sizeof(struct smb2_lock_element)) {
 		free_xid(xid);
 		return -EINVAL;
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/cifs/smb2glob.h linux-libre-4.4.107-gnu/fs/cifs/smb2glob.h
--- linux-libre-4.4-gnu/fs/cifs/smb2glob.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/cifs/smb2glob.h	2017-12-20 04:05:01.000000000 -0500
@@ -44,6 +44,7 @@
 #define SMB2_OP_DELETE 7
 #define SMB2_OP_HARDLINK 8
 #define SMB2_OP_SET_EOF 9
+#define SMB2_OP_RMDIR 10
 
 /* Used when constructing chained read requests. */
 #define CHAINED_REQUEST 1
@@ -60,4 +61,14 @@
 /* Maximum buffer size value we can send with 1 credit */
 #define SMB2_MAX_BUFFER_SIZE 65536
 
+/*
+ * Maximum number of credits to keep available.
+ * This value is chosen somewhat arbitrarily. The Windows client
+ * defaults to 128 credits, the Windows server allows clients up to
+ * 512 credits, and the NetApp server does not limit clients at all.
+ * Choose a high enough value such that the client shouldn't limit
+ * performance.
+ */
+#define SMB2_MAX_CREDITS_AVAILABLE 32000
+
 #endif	/* _SMB2_GLOB_H */
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/cifs/smb2inode.c linux-libre-4.4.107-gnu/fs/cifs/smb2inode.c
--- linux-libre-4.4-gnu/fs/cifs/smb2inode.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/cifs/smb2inode.c	2017-12-20 04:05:01.000000000 -0500
@@ -80,6 +80,10 @@ smb2_open_op_close(const unsigned int xi
 		 * SMB2_open() call.
 		 */
 		break;
+	case SMB2_OP_RMDIR:
+		tmprc = SMB2_rmdir(xid, tcon, fid.persistent_fid,
+				   fid.volatile_fid);
+		break;
 	case SMB2_OP_RENAME:
 		tmprc = SMB2_rename(xid, tcon, fid.persistent_fid,
 				    fid.volatile_fid, (__le16 *)data);
@@ -191,8 +195,8 @@ smb2_rmdir(const unsigned int xid, struc
 	   struct cifs_sb_info *cifs_sb)
 {
 	return smb2_open_op_close(xid, tcon, cifs_sb, name, DELETE, FILE_OPEN,
-				  CREATE_NOT_FILE | CREATE_DELETE_ON_CLOSE,
-				  NULL, SMB2_OP_DELETE);
+				  CREATE_NOT_FILE,
+				  NULL, SMB2_OP_RMDIR);
 }
 
 int
@@ -262,9 +266,15 @@ smb2_set_file_info(struct inode *inode,
 	struct tcon_link *tlink;
 	int rc;
 
+	if ((buf->CreationTime == 0) && (buf->LastAccessTime == 0) &&
+	    (buf->LastWriteTime == 0) && (buf->ChangeTime) &&
+	    (buf->Attributes == 0))
+		return 0; /* would be a no op, no sense sending this */
+
 	tlink = cifs_sb_tlink(cifs_sb);
 	if (IS_ERR(tlink))
 		return PTR_ERR(tlink);
+
 	rc = smb2_open_op_close(xid, tlink_tcon(tlink), cifs_sb, full_path,
 				FILE_WRITE_ATTRIBUTES, FILE_OPEN, 0, buf,
 				SMB2_OP_SET_INFO);
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/cifs/smb2misc.c linux-libre-4.4.107-gnu/fs/cifs/smb2misc.c
--- linux-libre-4.4-gnu/fs/cifs/smb2misc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/cifs/smb2misc.c	2017-12-20 04:05:01.000000000 -0500
@@ -525,19 +525,19 @@ smb2_is_valid_lease_break(char *buffer)
 		list_for_each(tmp1, &server->smb_ses_list) {
 			ses = list_entry(tmp1, struct cifs_ses, smb_ses_list);
 
-			spin_lock(&cifs_file_list_lock);
 			list_for_each(tmp2, &ses->tcon_list) {
 				tcon = list_entry(tmp2, struct cifs_tcon,
 						  tcon_list);
+				spin_lock(&tcon->open_file_lock);
 				cifs_stats_inc(
 				    &tcon->stats.cifs_stats.num_oplock_brks);
 				if (smb2_tcon_has_lease(tcon, rsp, lw)) {
-					spin_unlock(&cifs_file_list_lock);
+					spin_unlock(&tcon->open_file_lock);
 					spin_unlock(&cifs_tcp_ses_lock);
 					return true;
 				}
+				spin_unlock(&tcon->open_file_lock);
 			}
-			spin_unlock(&cifs_file_list_lock);
 		}
 	}
 	spin_unlock(&cifs_tcp_ses_lock);
@@ -579,7 +579,7 @@ smb2_is_valid_oplock_break(char *buffer,
 			tcon = list_entry(tmp1, struct cifs_tcon, tcon_list);
 
 			cifs_stats_inc(&tcon->stats.cifs_stats.num_oplock_brks);
-			spin_lock(&cifs_file_list_lock);
+			spin_lock(&tcon->open_file_lock);
 			list_for_each(tmp2, &tcon->openFileList) {
 				cfile = list_entry(tmp2, struct cifsFileInfo,
 						     tlist);
@@ -591,7 +591,7 @@ smb2_is_valid_oplock_break(char *buffer,
 
 				cifs_dbg(FYI, "file id match, oplock break\n");
 				cinode = CIFS_I(d_inode(cfile->dentry));
-
+				spin_lock(&cfile->file_info_lock);
 				if (!CIFS_CACHE_WRITE(cinode) &&
 				    rsp->OplockLevel == SMB2_OPLOCK_LEVEL_NONE)
 					cfile->oplock_break_cancelled = true;
@@ -613,14 +613,14 @@ smb2_is_valid_oplock_break(char *buffer,
 					clear_bit(
 					   CIFS_INODE_DOWNGRADE_OPLOCK_TO_L2,
 					   &cinode->flags);
-
+				spin_unlock(&cfile->file_info_lock);
 				queue_work(cifsiod_wq, &cfile->oplock_break);
 
-				spin_unlock(&cifs_file_list_lock);
+				spin_unlock(&tcon->open_file_lock);
 				spin_unlock(&cifs_tcp_ses_lock);
 				return true;
 			}
-			spin_unlock(&cifs_file_list_lock);
+			spin_unlock(&tcon->open_file_lock);
 			spin_unlock(&cifs_tcp_ses_lock);
 			cifs_dbg(FYI, "No matching file for oplock break\n");
 			return true;
@@ -630,3 +630,47 @@ smb2_is_valid_oplock_break(char *buffer,
 	cifs_dbg(FYI, "Can not process oplock break for non-existent connection\n");
 	return false;
 }
+
+void
+smb2_cancelled_close_fid(struct work_struct *work)
+{
+	struct close_cancelled_open *cancelled = container_of(work,
+					struct close_cancelled_open, work);
+
+	cifs_dbg(VFS, "Close unmatched open\n");
+
+	SMB2_close(0, cancelled->tcon, cancelled->fid.persistent_fid,
+		   cancelled->fid.volatile_fid);
+	cifs_put_tcon(cancelled->tcon);
+	kfree(cancelled);
+}
+
+int
+smb2_handle_cancelled_mid(char *buffer, struct TCP_Server_Info *server)
+{
+	struct smb2_hdr *hdr = (struct smb2_hdr *)buffer;
+	struct smb2_create_rsp *rsp = (struct smb2_create_rsp *)buffer;
+	struct cifs_tcon *tcon;
+	struct close_cancelled_open *cancelled;
+
+	if (hdr->Command != SMB2_CREATE || hdr->Status != STATUS_SUCCESS)
+		return 0;
+
+	cancelled = kzalloc(sizeof(*cancelled), GFP_KERNEL);
+	if (!cancelled)
+		return -ENOMEM;
+
+	tcon = smb2_find_smb_tcon(server, hdr->SessionId, hdr->TreeId);
+	if (!tcon) {
+		kfree(cancelled);
+		return -ENOENT;
+	}
+
+	cancelled->fid.persistent_fid = rsp->PersistentFileId;
+	cancelled->fid.volatile_fid = rsp->VolatileFileId;
+	cancelled->tcon = tcon;
+	INIT_WORK(&cancelled->work, smb2_cancelled_close_fid);
+	queue_work(cifsiod_wq, &cancelled->work);
+
+	return 0;
+}
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/cifs/smb2ops.c linux-libre-4.4.107-gnu/fs/cifs/smb2ops.c
--- linux-libre-4.4-gnu/fs/cifs/smb2ops.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/cifs/smb2ops.c	2017-12-20 04:05:01.000000000 -0500
@@ -282,7 +282,7 @@ SMB3_request_interfaces(const unsigned i
 		cifs_dbg(FYI, "Link Speed %lld\n",
 			le64_to_cpu(out_buf->LinkSpeed));
 	}
-
+	kfree(out_buf);
 	return rc;
 }
 #endif /* STATS2 */
@@ -536,6 +536,7 @@ smb2_set_fid(struct cifsFileInfo *cfile,
 	server->ops->set_oplock_level(cinode, oplock, fid->epoch,
 				      &fid->purge_cache);
 	cinode->can_cache_brlcks = CIFS_CACHE_WRITE(cinode);
+	memcpy(cfile->fid.create_guid, fid->create_guid, 16);
 }
 
 static void
@@ -694,6 +695,7 @@ smb2_clone_range(const unsigned int xid,
 
 cchunk_out:
 	kfree(pcchunk);
+	kfree(retbuf);
 	return rc;
 }
 
@@ -818,7 +820,6 @@ smb2_duplicate_extents(const unsigned in
 {
 	int rc;
 	unsigned int ret_data_len;
-	char *retbuf = NULL;
 	struct duplicate_extents_to_file dup_ext_buf;
 	struct cifs_tcon *tcon = tlink_tcon(trgtfile->tlink);
 
@@ -844,7 +845,7 @@ smb2_duplicate_extents(const unsigned in
 			FSCTL_DUPLICATE_EXTENTS_TO_FILE,
 			true /* is_fsctl */, (char *)&dup_ext_buf,
 			sizeof(struct duplicate_extents_to_file),
-			(char **)&retbuf,
+			NULL,
 			&ret_data_len);
 
 	if (ret_data_len > 0)
@@ -867,7 +868,6 @@ smb3_set_integrity(const unsigned int xi
 		   struct cifsFileInfo *cfile)
 {
 	struct fsctl_set_integrity_information_req integr_info;
-	char *retbuf = NULL;
 	unsigned int ret_data_len;
 
 	integr_info.ChecksumAlgorithm = cpu_to_le16(CHECKSUM_TYPE_UNCHANGED);
@@ -879,7 +879,7 @@ smb3_set_integrity(const unsigned int xi
 			FSCTL_SET_INTEGRITY_INFORMATION,
 			true /* is_fsctl */, (char *)&integr_info,
 			sizeof(struct fsctl_set_integrity_information_req),
-			(char **)&retbuf,
+			NULL,
 			&ret_data_len);
 
 }
@@ -909,7 +909,7 @@ smb2_query_dir_first(const unsigned int
 	rc = SMB2_open(xid, &oparms, utf16_path, &oplock, NULL, NULL);
 	kfree(utf16_path);
 	if (rc) {
-		cifs_dbg(VFS, "open dir failed\n");
+		cifs_dbg(FYI, "open dir failed rc=%d\n", rc);
 		return rc;
 	}
 
@@ -919,7 +919,7 @@ smb2_query_dir_first(const unsigned int
 	rc = SMB2_query_directory(xid, tcon, fid->persistent_fid,
 				  fid->volatile_fid, 0, srch_inf);
 	if (rc) {
-		cifs_dbg(VFS, "query directory failed\n");
+		cifs_dbg(FYI, "query directory failed rc=%d\n", rc);
 		SMB2_close(xid, tcon, fid->persistent_fid, fid->volatile_fid);
 	}
 	return rc;
@@ -963,6 +963,18 @@ smb2_is_status_pending(char *buf, struct
 	return true;
 }
 
+static bool
+smb2_is_session_expired(char *buf)
+{
+	struct smb2_hdr *hdr = (struct smb2_hdr *)buf;
+
+	if (hdr->Status != STATUS_NETWORK_SESSION_EXPIRED)
+		return false;
+
+	cifs_dbg(FYI, "Session expired\n");
+	return true;
+}
+
 static int
 smb2_oplock_response(struct cifs_tcon *tcon, struct cifs_fid *fid,
 		     struct cifsInodeInfo *cinode)
@@ -1036,9 +1048,12 @@ smb2_set_lease_key(struct inode *inode,
 static void
 smb2_new_lease_key(struct cifs_fid *fid)
 {
-	get_random_bytes(fid->lease_key, SMB2_LEASE_KEY_SIZE);
+	generate_random_uuid(fid->lease_key);
 }
 
+#define SMB2_SYMLINK_STRUCT_SIZE \
+	(sizeof(struct smb2_err_rsp) - 1 + sizeof(struct smb2_symlink_err_rsp))
+
 static int
 smb2_query_symlink(const unsigned int xid, struct cifs_tcon *tcon,
 		   const char *full_path, char **target_path,
@@ -1051,7 +1066,10 @@ smb2_query_symlink(const unsigned int xi
 	struct cifs_fid fid;
 	struct smb2_err_rsp *err_buf = NULL;
 	struct smb2_symlink_err_rsp *symlink;
-	unsigned int sub_len, sub_offset;
+	unsigned int sub_len;
+	unsigned int sub_offset;
+	unsigned int print_len;
+	unsigned int print_offset;
 
 	cifs_dbg(FYI, "%s: path: %s\n", __func__, full_path);
 
@@ -1072,11 +1090,33 @@ smb2_query_symlink(const unsigned int xi
 		kfree(utf16_path);
 		return -ENOENT;
 	}
+
+	if (le32_to_cpu(err_buf->ByteCount) < sizeof(struct smb2_symlink_err_rsp) ||
+	    get_rfc1002_length(err_buf) + 4 < SMB2_SYMLINK_STRUCT_SIZE) {
+		kfree(utf16_path);
+		return -ENOENT;
+	}
+
 	/* open must fail on symlink - reset rc */
 	rc = 0;
 	symlink = (struct smb2_symlink_err_rsp *)err_buf->ErrorData;
 	sub_len = le16_to_cpu(symlink->SubstituteNameLength);
 	sub_offset = le16_to_cpu(symlink->SubstituteNameOffset);
+	print_len = le16_to_cpu(symlink->PrintNameLength);
+	print_offset = le16_to_cpu(symlink->PrintNameOffset);
+
+	if (get_rfc1002_length(err_buf) + 4 <
+			SMB2_SYMLINK_STRUCT_SIZE + sub_offset + sub_len) {
+		kfree(utf16_path);
+		return -ENOENT;
+	}
+
+	if (get_rfc1002_length(err_buf) + 4 <
+			SMB2_SYMLINK_STRUCT_SIZE + print_offset + print_len) {
+		kfree(utf16_path);
+		return -ENOENT;
+	}
+
 	*target_path = cifs_strndup_from_utf16(
 				(char *)symlink->PathBuffer + sub_offset,
 				sub_len, true, cifs_sb->local_nls);
@@ -1483,6 +1523,7 @@ struct smb_version_operations smb20_oper
 	.clear_stats = smb2_clear_stats,
 	.print_stats = smb2_print_stats,
 	.is_oplock_break = smb2_is_valid_oplock_break,
+	.handle_cancelled_mid = smb2_handle_cancelled_mid,
 	.downgrade_oplock = smb2_downgrade_oplock,
 	.need_neg = smb2_need_neg,
 	.negotiate = smb2_negotiate,
@@ -1523,6 +1564,7 @@ struct smb_version_operations smb20_oper
 	.close_dir = smb2_close_dir,
 	.calc_smb_size = smb2_calc_size,
 	.is_status_pending = smb2_is_status_pending,
+	.is_session_expired = smb2_is_session_expired,
 	.oplock_response = smb2_oplock_response,
 	.queryfs = smb2_queryfs,
 	.mand_lock = smb2_mand_lock,
@@ -1561,6 +1603,7 @@ struct smb_version_operations smb21_oper
 	.clear_stats = smb2_clear_stats,
 	.print_stats = smb2_print_stats,
 	.is_oplock_break = smb2_is_valid_oplock_break,
+	.handle_cancelled_mid = smb2_handle_cancelled_mid,
 	.downgrade_oplock = smb2_downgrade_oplock,
 	.need_neg = smb2_need_neg,
 	.negotiate = smb2_negotiate,
@@ -1603,6 +1646,7 @@ struct smb_version_operations smb21_oper
 	.close_dir = smb2_close_dir,
 	.calc_smb_size = smb2_calc_size,
 	.is_status_pending = smb2_is_status_pending,
+	.is_session_expired = smb2_is_session_expired,
 	.oplock_response = smb2_oplock_response,
 	.queryfs = smb2_queryfs,
 	.mand_lock = smb2_mand_lock,
@@ -1642,6 +1686,7 @@ struct smb_version_operations smb30_oper
 	.print_stats = smb2_print_stats,
 	.dump_share_caps = smb2_dump_share_caps,
 	.is_oplock_break = smb2_is_valid_oplock_break,
+	.handle_cancelled_mid = smb2_handle_cancelled_mid,
 	.downgrade_oplock = smb2_downgrade_oplock,
 	.need_neg = smb2_need_neg,
 	.negotiate = smb2_negotiate,
@@ -1684,6 +1729,7 @@ struct smb_version_operations smb30_oper
 	.close_dir = smb2_close_dir,
 	.calc_smb_size = smb2_calc_size,
 	.is_status_pending = smb2_is_status_pending,
+	.is_session_expired = smb2_is_session_expired,
 	.oplock_response = smb2_oplock_response,
 	.queryfs = smb2_queryfs,
 	.mand_lock = smb2_mand_lock,
@@ -1729,6 +1775,7 @@ struct smb_version_operations smb311_ope
 	.print_stats = smb2_print_stats,
 	.dump_share_caps = smb2_dump_share_caps,
 	.is_oplock_break = smb2_is_valid_oplock_break,
+	.handle_cancelled_mid = smb2_handle_cancelled_mid,
 	.downgrade_oplock = smb2_downgrade_oplock,
 	.need_neg = smb2_need_neg,
 	.negotiate = smb2_negotiate,
@@ -1771,6 +1818,7 @@ struct smb_version_operations smb311_ope
 	.close_dir = smb2_close_dir,
 	.calc_smb_size = smb2_calc_size,
 	.is_status_pending = smb2_is_status_pending,
+	.is_session_expired = smb2_is_session_expired,
 	.oplock_response = smb2_oplock_response,
 	.queryfs = smb2_queryfs,
 	.mand_lock = smb2_mand_lock,
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/cifs/smb2pdu.c linux-libre-4.4.107-gnu/fs/cifs/smb2pdu.c
--- linux-libre-4.4-gnu/fs/cifs/smb2pdu.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/cifs/smb2pdu.c	2017-12-20 04:05:01.000000000 -0500
@@ -103,7 +103,21 @@ smb2_hdr_assemble(struct smb2_hdr *hdr,
 	hdr->ProtocolId[3] = 'B';
 	hdr->StructureSize = cpu_to_le16(64);
 	hdr->Command = smb2_cmd;
-	hdr->CreditRequest = cpu_to_le16(2); /* BB make this dynamic */
+	if (tcon && tcon->ses && tcon->ses->server) {
+		struct TCP_Server_Info *server = tcon->ses->server;
+
+		spin_lock(&server->req_lock);
+		/* Request up to 2 credits but don't go over the limit. */
+		if (server->credits >= SMB2_MAX_CREDITS_AVAILABLE)
+			hdr->CreditRequest = cpu_to_le16(0);
+		else
+			hdr->CreditRequest = cpu_to_le16(
+				min_t(int, SMB2_MAX_CREDITS_AVAILABLE -
+						server->credits, 2));
+		spin_unlock(&server->req_lock);
+	} else {
+		hdr->CreditRequest = cpu_to_le16(2);
+	}
 	hdr->ProcessId = cpu_to_le32((__u16)current->tgid);
 
 	if (!tcon)
@@ -264,7 +278,7 @@ out:
 	case SMB2_CHANGE_NOTIFY:
 	case SMB2_QUERY_INFO:
 	case SMB2_SET_INFO:
-		return -EAGAIN;
+		rc = -EAGAIN;
 	}
 	unload_nls(nls_codepage);
 	return rc;
@@ -347,7 +361,7 @@ assemble_neg_contexts(struct smb2_negoti
 	build_encrypt_ctxt((struct smb2_encryption_neg_context *)pneg_ctxt);
 	req->NegotiateContextOffset = cpu_to_le32(OFFSET_OF_NEG_CONTEXT);
 	req->NegotiateContextCount = cpu_to_le16(2);
-	inc_rfc1001_len(req, 4 + sizeof(struct smb2_preauth_neg_context) + 2
+	inc_rfc1001_len(req, 4 + sizeof(struct smb2_preauth_neg_context)
 			+ sizeof(struct smb2_encryption_neg_context)); /* calculate hash */
 }
 #else
@@ -512,15 +526,22 @@ int smb3_validate_negotiate(const unsign
 
 	/*
 	 * validation ioctl must be signed, so no point sending this if we
-	 * can not sign it.  We could eventually change this to selectively
+	 * can not sign it (ie are not known user).  Even if signing is not
+	 * required (enabled but not negotiated), in those cases we selectively
 	 * sign just this, the first and only signed request on a connection.
-	 * This is good enough for now since a user who wants better security
-	 * would also enable signing on the mount. Having validation of
-	 * negotiate info for signed connections helps reduce attack vectors
+	 * Having validation of negotiate info  helps reduce attack vectors.
 	 */
-	if (tcon->ses->server->sign == false)
+	if (tcon->ses->session_flags & SMB2_SESSION_FLAG_IS_GUEST)
 		return 0; /* validation requires signing */
 
+	if (tcon->ses->user_name == NULL) {
+		cifs_dbg(FYI, "Can't validate negotiate: null user mount\n");
+		return 0; /* validation requires signing */
+	}
+
+	if (tcon->ses->session_flags & SMB2_SESSION_FLAG_IS_NULL)
+		cifs_dbg(VFS, "Unexpected null user (anonymous) auth flag sent by server\n");
+
 	vneg_inbuf.Capabilities =
 			cpu_to_le32(tcon->ses->server->vals->req_capabilities);
 	memcpy(vneg_inbuf.Guid, tcon->ses->server->client_guid,
@@ -550,8 +571,12 @@ int smb3_validate_negotiate(const unsign
 	}
 
 	if (rsplen != sizeof(struct validate_negotiate_info_rsp)) {
-		cifs_dbg(VFS, "invalid size of protocol negotiate response\n");
-		return -EIO;
+		cifs_dbg(VFS, "invalid protocol negotiate response size: %d\n",
+			 rsplen);
+
+		/* relax check since Mac returns max bufsize allowed on ioctl */
+		if (rsplen > CIFSMaxBufSize)
+			return -EIO;
 	}
 
 	/* check validate negotiate info response matches what we got earlier */
@@ -591,8 +616,9 @@ SMB2_sess_setup(const unsigned int xid,
 	u16 blob_length = 0;
 	struct key *spnego_key = NULL;
 	char *security_blob = NULL;
-	char *ntlmssp_blob = NULL;
+	unsigned char *ntlmssp_blob = NULL;
 	bool use_spnego = false; /* else use raw ntlmssp */
+	u64 previous_session = ses->Suid;
 
 	cifs_dbg(FYI, "Session Setup\n");
 
@@ -630,6 +656,10 @@ ssetup_ntlmssp_authenticate:
 		return rc;
 
 	req->hdr.SessionId = 0; /* First session, not a reauthenticate */
+
+	/* if reconnect, we need to send previous sess id, otherwise it is 0 */
+	req->PreviousSessionId = previous_session;
+
 	req->Flags = 0; /* MBZ */
 	/* to enable echos and oplocks */
 	req->hdr.CreditRequest = cpu_to_le16(3);
@@ -716,13 +746,7 @@ ssetup_ntlmssp_authenticate:
 		iov[1].iov_len = blob_length;
 	} else if (phase == NtLmAuthenticate) {
 		req->hdr.SessionId = ses->Suid;
-		ntlmssp_blob = kzalloc(sizeof(struct _NEGOTIATE_MESSAGE) + 500,
-				       GFP_KERNEL);
-		if (ntlmssp_blob == NULL) {
-			rc = -ENOMEM;
-			goto ssetup_exit;
-		}
-		rc = build_ntlmssp_auth_blob(ntlmssp_blob, &blob_length, ses,
+		rc = build_ntlmssp_auth_blob(&ntlmssp_blob, &blob_length, ses,
 					     nls_cp);
 		if (rc) {
 			cifs_dbg(FYI, "build_ntlmssp_auth_blob failed %d\n",
@@ -919,9 +943,6 @@ SMB2_tcon(const unsigned int xid, struct
 	else
 		return -EIO;
 
-	if (tcon && tcon->bad_network_name)
-		return -ENOENT;
-
 	if ((tcon && tcon->seal) &&
 	    ((ses->server->capabilities & SMB2_GLOBAL_CAP_ENCRYPTION) == 0)) {
 		cifs_dbg(VFS, "encryption requested but no server support");
@@ -939,6 +960,10 @@ SMB2_tcon(const unsigned int xid, struct
 		return -EINVAL;
 	}
 
+	/* SMB2 TREE_CONNECT request must be called with TreeId == 0 */
+	if (tcon)
+		tcon->tid = 0;
+
 	rc = small_smb2_init(SMB2_TREE_CONNECT, tcon, (void **) &req);
 	if (rc) {
 		kfree(unc_path);
@@ -1019,8 +1044,6 @@ tcon_exit:
 tcon_error_exit:
 	if (rsp->hdr.Status == STATUS_BAD_NETWORK_NAME) {
 		cifs_dbg(VFS, "BAD_NETWORK_NAME: %s\n", tree);
-		if (tcon)
-			tcon->bad_network_name = true;
 	}
 	goto tcon_exit;
 }
@@ -1109,21 +1132,25 @@ parse_lease_state(struct TCP_Server_Info
 {
 	char *data_offset;
 	struct create_context *cc;
-	unsigned int next = 0;
+	unsigned int next;
+	unsigned int remaining;
 	char *name;
 
 	data_offset = (char *)rsp + 4 + le32_to_cpu(rsp->CreateContextsOffset);
+	remaining = le32_to_cpu(rsp->CreateContextsLength);
 	cc = (struct create_context *)data_offset;
-	do {
-		cc = (struct create_context *)((char *)cc + next);
+	while (remaining >= sizeof(struct create_context)) {
 		name = le16_to_cpu(cc->NameOffset) + (char *)cc;
-		if (le16_to_cpu(cc->NameLength) != 4 ||
-		    strncmp(name, "RqLs", 4)) {
-			next = le32_to_cpu(cc->Next);
-			continue;
-		}
-		return server->ops->parse_lease_buf(cc, epoch);
-	} while (next != 0);
+		if (le16_to_cpu(cc->NameLength) == 4 &&
+		    strncmp(name, "RqLs", 4) == 0)
+			return server->ops->parse_lease_buf(cc, epoch);
+
+		next = le32_to_cpu(cc->Next);
+		if (!next)
+			break;
+		remaining -= next;
+		cc = (struct create_context *)((char *)cc + next);
+	}
 
 	return 0;
 }
@@ -1169,7 +1196,7 @@ create_durable_v2_buf(struct cifs_fid *p
 
 	buf->dcontext.Timeout = 0; /* Should this be configurable by workload */
 	buf->dcontext.Flags = cpu_to_le32(SMB2_DHANDLE_FLAG_PERSISTENT);
-	get_random_bytes(buf->dcontext.CreateGuid, 16);
+	generate_random_uuid(buf->dcontext.CreateGuid);
 	memcpy(pfid->create_guid, buf->dcontext.CreateGuid, 16);
 
 	/* SMB2_CREATE_DURABLE_HANDLE_REQUEST is "DH2Q" */
@@ -1502,8 +1529,12 @@ SMB2_ioctl(const unsigned int xid, struc
 	 * than one credit. Windows typically sets this smaller, but for some
 	 * ioctls it may be useful to allow server to send more. No point
 	 * limiting what the server can send as long as fits in one credit
+	 * Unfortunately - we can not handle more than CIFS_MAX_MSG_SIZE
+	 * (by default, note that it can be overridden to make max larger)
+	 * in responses (except for read responses which can be bigger.
+	 * We may want to bump this limit up
 	 */
-	req->MaxOutputResponse = cpu_to_le32(0xFF00); /* < 64K uses 1 credit */
+	req->MaxOutputResponse = cpu_to_le32(CIFSMaxBufSize);
 
 	if (is_fsctl)
 		req->Flags = cpu_to_le32(SMB2_0_IOCTL_IS_FSCTL);
@@ -1805,6 +1836,54 @@ smb2_echo_callback(struct mid_q_entry *m
 	add_credits(server, credits_received, CIFS_ECHO_OP);
 }
 
+void smb2_reconnect_server(struct work_struct *work)
+{
+	struct TCP_Server_Info *server = container_of(work,
+					struct TCP_Server_Info, reconnect.work);
+	struct cifs_ses *ses;
+	struct cifs_tcon *tcon, *tcon2;
+	struct list_head tmp_list;
+	int tcon_exist = false;
+
+	/* Prevent simultaneous reconnects that can corrupt tcon->rlist list */
+	mutex_lock(&server->reconnect_mutex);
+
+	INIT_LIST_HEAD(&tmp_list);
+	cifs_dbg(FYI, "Need negotiate, reconnecting tcons\n");
+
+	spin_lock(&cifs_tcp_ses_lock);
+	list_for_each_entry(ses, &server->smb_ses_list, smb_ses_list) {
+		list_for_each_entry(tcon, &ses->tcon_list, tcon_list) {
+			if (tcon->need_reconnect) {
+				tcon->tc_count++;
+				list_add_tail(&tcon->rlist, &tmp_list);
+				tcon_exist = true;
+			}
+		}
+	}
+	/*
+	 * Get the reference to server struct to be sure that the last call of
+	 * cifs_put_tcon() in the loop below won't release the server pointer.
+	 */
+	if (tcon_exist)
+		server->srv_count++;
+
+	spin_unlock(&cifs_tcp_ses_lock);
+
+	list_for_each_entry_safe(tcon, tcon2, &tmp_list, rlist) {
+		smb2_reconnect(SMB2_ECHO, tcon);
+		list_del_init(&tcon->rlist);
+		cifs_put_tcon(tcon);
+	}
+
+	cifs_dbg(FYI, "Reconnecting tcons finished\n");
+	mutex_unlock(&server->reconnect_mutex);
+
+	/* now we can safely release srv struct */
+	if (tcon_exist)
+		cifs_put_tcp_session(server, 1);
+}
+
 int
 SMB2_echo(struct TCP_Server_Info *server)
 {
@@ -1816,6 +1895,12 @@ SMB2_echo(struct TCP_Server_Info *server
 
 	cifs_dbg(FYI, "In echo request\n");
 
+	if (server->tcpStatus == CifsNeedNegotiate) {
+		/* No need to send echo on newly established connections */
+		queue_delayed_work(cifsiod_wq, &server->reconnect, 0);
+		return rc;
+	}
+
 	rc = small_smb2_init(SMB2_ECHO, NULL, (void **)&req);
 	if (rc)
 		return rc;
@@ -2034,6 +2119,7 @@ smb2_async_readv(struct cifs_readdata *r
 	if (rdata->credits) {
 		buf->CreditCharge = cpu_to_le16(DIV_ROUND_UP(rdata->bytes,
 						SMB2_MAX_BUFFER_SIZE));
+		buf->CreditRequest = buf->CreditCharge;
 		spin_lock(&server->req_lock);
 		server->credits += rdata->credits -
 						le16_to_cpu(buf->CreditCharge);
@@ -2220,6 +2306,7 @@ smb2_async_writev(struct cifs_writedata
 	if (wdata->credits) {
 		req->hdr.CreditCharge = cpu_to_le16(DIV_ROUND_UP(wdata->bytes,
 						    SMB2_MAX_BUFFER_SIZE));
+		req->hdr.CreditRequest = req->hdr.CreditCharge;
 		spin_lock(&server->req_lock);
 		server->credits += wdata->credits -
 					le16_to_cpu(req->hdr.CreditCharge);
@@ -2573,6 +2660,22 @@ SMB2_rename(const unsigned int xid, stru
 }
 
 int
+SMB2_rmdir(const unsigned int xid, struct cifs_tcon *tcon,
+		  u64 persistent_fid, u64 volatile_fid)
+{
+	__u8 delete_pending = 1;
+	void *data;
+	unsigned int size;
+
+	data = &delete_pending;
+	size = 1; /* sizeof __u8 */
+
+	return send_set_info(xid, tcon, persistent_fid, volatile_fid,
+			current->tgid, FILE_DISPOSITION_INFORMATION, 1, &data,
+			&size);
+}
+
+int
 SMB2_set_hardlink(const unsigned int xid, struct cifs_tcon *tcon,
 		  u64 persistent_fid, u64 volatile_fid, __le16 *target_file)
 {
@@ -2672,8 +2775,8 @@ copy_fs_info_to_kstatfs(struct smb2_fs_f
 	kst->f_bsize = le32_to_cpu(pfs_inf->BytesPerSector) *
 			  le32_to_cpu(pfs_inf->SectorsPerAllocationUnit);
 	kst->f_blocks = le64_to_cpu(pfs_inf->TotalAllocationUnits);
-	kst->f_bfree  = le64_to_cpu(pfs_inf->ActualAvailableAllocationUnits);
-	kst->f_bavail = le64_to_cpu(pfs_inf->CallerAvailableAllocationUnits);
+	kst->f_bfree  = kst->f_bavail =
+			le64_to_cpu(pfs_inf->CallerAvailableAllocationUnits);
 	return;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/cifs/smb2pdu.h linux-libre-4.4.107-gnu/fs/cifs/smb2pdu.h
--- linux-libre-4.4-gnu/fs/cifs/smb2pdu.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/cifs/smb2pdu.h	2017-12-20 04:05:01.000000000 -0500
@@ -82,8 +82,8 @@
 
 #define NUMBER_OF_SMB2_COMMANDS	0x0013
 
-/* BB FIXME - analyze following length BB */
-#define MAX_SMB2_HDR_SIZE 0x78 /* 4 len + 64 hdr + (2*24 wct) + 2 bct + 2 pad */
+/* 4 len + 52 transform hdr + 64 hdr + 56 create rsp */
+#define MAX_SMB2_HDR_SIZE 0x00b0
 
 #define SMB2_PROTO_NUMBER cpu_to_le32(0x424d53fe)
 
@@ -276,7 +276,7 @@ struct smb2_sess_setup_req {
 	__le32 Channel;
 	__le16 SecurityBufferOffset;
 	__le16 SecurityBufferLength;
-	__le64 PreviousSessionId;
+	__u64 PreviousSessionId;
 	__u8   Buffer[1];	/* variable length GSS security buffer */
 } __packed;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/cifs/smb2proto.h linux-libre-4.4.107-gnu/fs/cifs/smb2proto.h
--- linux-libre-4.4-gnu/fs/cifs/smb2proto.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/cifs/smb2proto.h	2017-12-20 04:05:01.000000000 -0500
@@ -47,6 +47,10 @@ extern struct mid_q_entry *smb2_setup_re
 			      struct smb_rqst *rqst);
 extern struct mid_q_entry *smb2_setup_async_request(
 			struct TCP_Server_Info *server, struct smb_rqst *rqst);
+extern struct cifs_ses *smb2_find_smb_ses(struct TCP_Server_Info *server,
+					   __u64 ses_id);
+extern struct cifs_tcon *smb2_find_smb_tcon(struct TCP_Server_Info *server,
+						__u64 ses_id, __u32  tid);
 extern int smb2_calc_signature(struct smb_rqst *rqst,
 				struct TCP_Server_Info *server);
 extern int smb3_calc_signature(struct smb_rqst *rqst,
@@ -95,6 +99,7 @@ extern int smb2_open_file(const unsigned
 extern int smb2_unlock_range(struct cifsFileInfo *cfile,
 			     struct file_lock *flock, const unsigned int xid);
 extern int smb2_push_mandatory_locks(struct cifsFileInfo *cfile);
+extern void smb2_reconnect_server(struct work_struct *work);
 
 /*
  * SMB2 Worker functions - most of protocol specific implementation details
@@ -140,6 +145,8 @@ extern int SMB2_query_directory(const un
 extern int SMB2_rename(const unsigned int xid, struct cifs_tcon *tcon,
 		       u64 persistent_fid, u64 volatile_fid,
 		       __le16 *target_file);
+extern int SMB2_rmdir(const unsigned int xid, struct cifs_tcon *tcon,
+		      u64 persistent_fid, u64 volatile_fid);
 extern int SMB2_set_hardlink(const unsigned int xid, struct cifs_tcon *tcon,
 			     u64 persistent_fid, u64 volatile_fid,
 			     __le16 *target_file);
@@ -154,6 +161,9 @@ extern int SMB2_set_compression(const un
 extern int SMB2_oplock_break(const unsigned int xid, struct cifs_tcon *tcon,
 			     const u64 persistent_fid, const u64 volatile_fid,
 			     const __u8 oplock_level);
+extern int smb2_handle_cancelled_mid(char *buffer,
+					struct TCP_Server_Info *server);
+void smb2_cancelled_close_fid(struct work_struct *work);
 extern int SMB2_QFS_info(const unsigned int xid, struct cifs_tcon *tcon,
 			 u64 persistent_file_id, u64 volatile_file_id,
 			 struct kstatfs *FSData);
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/cifs/smb2transport.c linux-libre-4.4.107-gnu/fs/cifs/smb2transport.c
--- linux-libre-4.4-gnu/fs/cifs/smb2transport.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/cifs/smb2transport.c	2017-12-20 04:05:01.000000000 -0500
@@ -115,22 +115,68 @@ smb3_crypto_shash_allocate(struct TCP_Se
 }
 
 static struct cifs_ses *
-smb2_find_smb_ses(struct smb2_hdr *smb2hdr, struct TCP_Server_Info *server)
+smb2_find_smb_ses_unlocked(struct TCP_Server_Info *server, __u64 ses_id)
 {
 	struct cifs_ses *ses;
 
-	spin_lock(&cifs_tcp_ses_lock);
 	list_for_each_entry(ses, &server->smb_ses_list, smb_ses_list) {
-		if (ses->Suid != smb2hdr->SessionId)
+		if (ses->Suid != ses_id)
 			continue;
-		spin_unlock(&cifs_tcp_ses_lock);
 		return ses;
 	}
+
+	return NULL;
+}
+
+struct cifs_ses *
+smb2_find_smb_ses(struct TCP_Server_Info *server, __u64 ses_id)
+{
+	struct cifs_ses *ses;
+
+	spin_lock(&cifs_tcp_ses_lock);
+	ses = smb2_find_smb_ses_unlocked(server, ses_id);
 	spin_unlock(&cifs_tcp_ses_lock);
 
+	return ses;
+}
+
+static struct cifs_tcon *
+smb2_find_smb_sess_tcon_unlocked(struct cifs_ses *ses, __u32  tid)
+{
+	struct cifs_tcon *tcon;
+
+	list_for_each_entry(tcon, &ses->tcon_list, tcon_list) {
+		if (tcon->tid != tid)
+			continue;
+		++tcon->tc_count;
+		return tcon;
+	}
+
 	return NULL;
 }
 
+/*
+ * Obtain tcon corresponding to the tid in the given
+ * cifs_ses
+ */
+
+struct cifs_tcon *
+smb2_find_smb_tcon(struct TCP_Server_Info *server, __u64 ses_id, __u32 tid)
+{
+	struct cifs_ses *ses;
+	struct cifs_tcon *tcon;
+
+	spin_lock(&cifs_tcp_ses_lock);
+	ses = smb2_find_smb_ses_unlocked(server, ses_id);
+	if (!ses) {
+		spin_unlock(&cifs_tcp_ses_lock);
+		return NULL;
+	}
+	tcon = smb2_find_smb_sess_tcon_unlocked(ses, tid);
+	spin_unlock(&cifs_tcp_ses_lock);
+
+	return tcon;
+}
 
 int
 smb2_calc_signature(struct smb_rqst *rqst, struct TCP_Server_Info *server)
@@ -143,7 +189,7 @@ smb2_calc_signature(struct smb_rqst *rqs
 	struct smb2_hdr *smb2_pdu = (struct smb2_hdr *)iov[0].iov_base;
 	struct cifs_ses *ses;
 
-	ses = smb2_find_smb_ses(smb2_pdu, server);
+	ses = smb2_find_smb_ses(server, smb2_pdu->SessionId);
 	if (!ses) {
 		cifs_dbg(VFS, "%s: Could not find session\n", __func__);
 		return 0;
@@ -314,7 +360,7 @@ smb3_calc_signature(struct smb_rqst *rqs
 	struct smb2_hdr *smb2_pdu = (struct smb2_hdr *)iov[0].iov_base;
 	struct cifs_ses *ses;
 
-	ses = smb2_find_smb_ses(smb2_pdu, server);
+	ses = smb2_find_smb_ses(server, smb2_pdu->SessionId);
 	if (!ses) {
 		cifs_dbg(VFS, "%s: Could not find session\n", __func__);
 		return 0;
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/cifs/transport.c linux-libre-4.4.107-gnu/fs/cifs/transport.c
--- linux-libre-4.4-gnu/fs/cifs/transport.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/cifs/transport.c	2017-12-20 04:05:01.000000000 -0500
@@ -576,14 +576,16 @@ cifs_call_async(struct TCP_Server_Info *
 	cifs_in_send_dec(server);
 	cifs_save_when_sent(mid);
 
-	if (rc < 0)
+	if (rc < 0) {
 		server->sequence_number -= 2;
+		cifs_delete_mid(mid);
+	}
+
 	mutex_unlock(&server->srv_mutex);
 
 	if (rc == 0)
 		return 0;
 
-	cifs_delete_mid(mid);
 	add_credits_and_wake_if(server, credits, optype);
 	return rc;
 }
@@ -784,9 +786,11 @@ SendReceive2(const unsigned int xid, str
 
 	rc = wait_for_response(ses->server, midQ);
 	if (rc != 0) {
+		cifs_dbg(FYI, "Cancelling wait for mid %llu\n",	midQ->mid);
 		send_cancel(ses->server, buf, midQ);
 		spin_lock(&GlobalMid_Lock);
 		if (midQ->mid_state == MID_REQUEST_SUBMITTED) {
+			midQ->mid_flags |= MID_WAIT_CANCELLED;
 			midQ->callback = DeleteMidQEntry;
 			spin_unlock(&GlobalMid_Lock);
 			cifs_small_buf_release(buf);
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/coda/upcall.c linux-libre-4.4.107-gnu/fs/coda/upcall.c
--- linux-libre-4.4-gnu/fs/coda/upcall.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/coda/upcall.c	2017-12-20 04:05:01.000000000 -0500
@@ -446,8 +446,7 @@ int venus_fsync(struct super_block *sb,
 	UPARG(CODA_FSYNC);
 
 	inp->coda_fsync.VFid = *fid;
-	error = coda_upcall(coda_vcp(sb), sizeof(union inputArgs),
-			    &outsize, inp);
+	error = coda_upcall(coda_vcp(sb), insize, &outsize, inp);
 
 	CODA_FREE(inp, insize);
 	return error;
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/configfs/symlink.c linux-libre-4.4.107-gnu/fs/configfs/symlink.c
--- linux-libre-4.4-gnu/fs/configfs/symlink.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/configfs/symlink.c	2017-12-20 04:05:01.000000000 -0500
@@ -83,14 +83,13 @@ static int create_link(struct config_ite
 	ret = -ENOMEM;
 	sl = kmalloc(sizeof(struct configfs_symlink), GFP_KERNEL);
 	if (sl) {
-		sl->sl_target = config_item_get(item);
 		spin_lock(&configfs_dirent_lock);
 		if (target_sd->s_type & CONFIGFS_USET_DROPPING) {
 			spin_unlock(&configfs_dirent_lock);
-			config_item_put(item);
 			kfree(sl);
 			return -ENOENT;
 		}
+		sl->sl_target = config_item_get(item);
 		list_add(&sl->sl_list, &target_sd->s_links);
 		spin_unlock(&configfs_dirent_lock);
 		ret = configfs_create_link(sl, parent_item->ci_dentry,
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/coredump.c linux-libre-4.4.107-gnu/fs/coredump.c
--- linux-libre-4.4-gnu/fs/coredump.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/coredump.c	2017-12-20 04:05:01.000000000 -0500
@@ -1,6 +1,7 @@
 #include <linux/slab.h>
 #include <linux/file.h>
 #include <linux/fdtable.h>
+#include <linux/freezer.h>
 #include <linux/mm.h>
 #include <linux/stat.h>
 #include <linux/fcntl.h>
@@ -32,6 +33,9 @@
 #include <linux/pipe_fs_i.h>
 #include <linux/oom.h>
 #include <linux/compat.h>
+#include <linux/sched.h>
+#include <linux/fs.h>
+#include <linux/path.h>
 
 #include <asm/uaccess.h>
 #include <asm/mmu_context.h>
@@ -396,7 +400,9 @@ static int coredump_wait(int exit_code,
 	if (core_waiters > 0) {
 		struct core_thread *ptr;
 
+		freezer_do_not_count();
 		wait_for_completion(&core_state->startup);
+		freezer_count();
 		/*
 		 * Wait for all the threads to become inactive, so that
 		 * all the thread context (extended register state, like
@@ -627,6 +633,8 @@ void do_coredump(const siginfo_t *siginf
 		}
 	} else {
 		struct inode *inode;
+		int open_flags = O_CREAT | O_RDWR | O_NOFOLLOW |
+				 O_LARGEFILE | O_EXCL;
 
 		if (cprm.limit < binfmt->min_coredump)
 			goto fail_unlock;
@@ -665,10 +673,27 @@ void do_coredump(const siginfo_t *siginf
 		 * what matters is that at least one of the two processes
 		 * writes its coredump successfully, not which one.
 		 */
-		cprm.file = filp_open(cn.corename,
-				 O_CREAT | 2 | O_NOFOLLOW |
-				 O_LARGEFILE | O_EXCL,
-				 0600);
+		if (need_suid_safe) {
+			/*
+			 * Using user namespaces, normal user tasks can change
+			 * their current->fs->root to point to arbitrary
+			 * directories. Since the intention of the "only dump
+			 * with a fully qualified path" rule is to control where
+			 * coredumps may be placed using root privileges,
+			 * current->fs->root must not be used. Instead, use the
+			 * root directory of init_task.
+			 */
+			struct path root;
+
+			task_lock(&init_task);
+			get_fs_root(init_task.fs, &root);
+			task_unlock(&init_task);
+			cprm.file = file_open_root(root.dentry, root.mnt,
+				cn.corename, open_flags, 0600);
+			path_put(&root);
+		} else {
+			cprm.file = filp_open(cn.corename, open_flags, 0600);
+		}
 		if (IS_ERR(cprm.file))
 			goto fail_unlock;
 
@@ -785,3 +810,21 @@ int dump_align(struct coredump_params *c
 	return mod ? dump_skip(cprm, align - mod) : 1;
 }
 EXPORT_SYMBOL(dump_align);
+
+/*
+ * Ensures that file size is big enough to contain the current file
+ * postion. This prevents gdb from complaining about a truncated file
+ * if the last "write" to the file was dump_skip.
+ */
+void dump_truncate(struct coredump_params *cprm)
+{
+	struct file *file = cprm->file;
+	loff_t offset;
+
+	if (file->f_op->llseek && file->f_op->llseek != no_llseek) {
+		offset = file->f_op->llseek(file, 0, SEEK_CUR);
+		if (i_size_read(file->f_mapping->host) < offset)
+			do_truncate(file->f_path.dentry, offset, 0, file);
+	}
+}
+EXPORT_SYMBOL(dump_truncate);
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/dcache.c linux-libre-4.4.107-gnu/fs/dcache.c
--- linux-libre-4.4-gnu/fs/dcache.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/dcache.c	2017-12-20 04:05:01.000000000 -0500
@@ -269,9 +269,33 @@ static inline int dname_external(const s
 	return dentry->d_name.name != dentry->d_iname;
 }
 
-/*
- * Make sure other CPUs see the inode attached before the type is set.
- */
+void take_dentry_name_snapshot(struct name_snapshot *name, struct dentry *dentry)
+{
+	spin_lock(&dentry->d_lock);
+	if (unlikely(dname_external(dentry))) {
+		struct external_name *p = external_name(dentry);
+		atomic_inc(&p->u.count);
+		spin_unlock(&dentry->d_lock);
+		name->name = p->name;
+	} else {
+		memcpy(name->inline_name, dentry->d_iname, DNAME_INLINE_LEN);
+		spin_unlock(&dentry->d_lock);
+		name->name = name->inline_name;
+	}
+}
+EXPORT_SYMBOL(take_dentry_name_snapshot);
+
+void release_dentry_name_snapshot(struct name_snapshot *name)
+{
+	if (unlikely(name->name != name->inline_name)) {
+		struct external_name *p;
+		p = container_of(name->name, struct external_name, name[0]);
+		if (unlikely(atomic_dec_and_test(&p->u.count)))
+			kfree_rcu(p, u.head);
+	}
+}
+EXPORT_SYMBOL(release_dentry_name_snapshot);
+
 static inline void __d_set_inode_and_type(struct dentry *dentry,
 					  struct inode *inode,
 					  unsigned type_flags)
@@ -279,28 +303,18 @@ static inline void __d_set_inode_and_typ
 	unsigned flags;
 
 	dentry->d_inode = inode;
-	smp_wmb();
 	flags = READ_ONCE(dentry->d_flags);
 	flags &= ~(DCACHE_ENTRY_TYPE | DCACHE_FALLTHRU);
 	flags |= type_flags;
 	WRITE_ONCE(dentry->d_flags, flags);
 }
 
-/*
- * Ideally, we want to make sure that other CPUs see the flags cleared before
- * the inode is detached, but this is really a violation of RCU principles
- * since the ordering suggests we should always set inode before flags.
- *
- * We should instead replace or discard the entire dentry - but that sucks
- * performancewise on mass deletion/rename.
- */
 static inline void __d_clear_type_and_inode(struct dentry *dentry)
 {
 	unsigned flags = READ_ONCE(dentry->d_flags);
 
 	flags &= ~(DCACHE_ENTRY_TYPE | DCACHE_FALLTHRU);
 	WRITE_ONCE(dentry->d_flags, flags);
-	smp_wmb();
 	dentry->d_inode = NULL;
 }
 
@@ -370,9 +384,11 @@ static void dentry_unlink_inode(struct d
 	__releases(dentry->d_inode->i_lock)
 {
 	struct inode *inode = dentry->d_inode;
+
+	raw_write_seqcount_begin(&dentry->d_seq);
 	__d_clear_type_and_inode(dentry);
 	hlist_del_init(&dentry->d_u.d_alias);
-	dentry_rcuwalk_invalidate(dentry);
+	raw_write_seqcount_end(&dentry->d_seq);
 	spin_unlock(&dentry->d_lock);
 	spin_unlock(&inode->i_lock);
 	if (!inode->i_nlink)
@@ -589,7 +605,6 @@ static struct dentry *dentry_kill(struct
 
 failed:
 	spin_unlock(&dentry->d_lock);
-	cpu_relax();
 	return dentry; /* try again with same dentry */
 }
 
@@ -763,6 +778,8 @@ void dput(struct dentry *dentry)
 		return;
 
 repeat:
+	might_sleep();
+
 	rcu_read_lock();
 	if (likely(fast_dput(dentry))) {
 		rcu_read_unlock();
@@ -794,8 +811,10 @@ repeat:
 
 kill_it:
 	dentry = dentry_kill(dentry);
-	if (dentry)
+	if (dentry) {
+		cond_resched();
 		goto repeat;
+	}
 }
 EXPORT_SYMBOL(dput);
 
@@ -1136,11 +1155,12 @@ void shrink_dcache_sb(struct super_block
 		LIST_HEAD(dispose);
 
 		freed = list_lru_walk(&sb->s_dentry_lru,
-			dentry_lru_isolate_shrink, &dispose, UINT_MAX);
+			dentry_lru_isolate_shrink, &dispose, 1024);
 
 		this_cpu_sub(nr_dentry_unused, freed);
 		shrink_dentry_list(&dispose);
-	} while (freed > 0);
+		cond_resched();
+	} while (list_lru_count(&sb->s_dentry_lru) > 0);
 }
 EXPORT_SYMBOL(shrink_dcache_sb);
 
@@ -1330,8 +1350,11 @@ int d_set_mounted(struct dentry *dentry)
 	}
 	spin_lock(&dentry->d_lock);
 	if (!d_unlinked(dentry)) {
-		dentry->d_flags |= DCACHE_MOUNTED;
-		ret = 0;
+		ret = -EBUSY;
+		if (!d_mountpoint(dentry)) {
+			dentry->d_flags |= DCACHE_MOUNTED;
+			ret = 0;
+		}
 	}
  	spin_unlock(&dentry->d_lock);
 out:
@@ -1629,7 +1652,7 @@ struct dentry *d_alloc(struct dentry * p
 	struct dentry *dentry = __d_alloc(parent->d_sb, name);
 	if (!dentry)
 		return NULL;
-
+	dentry->d_flags |= DCACHE_RCUACCESS;
 	spin_lock(&parent->d_lock);
 	/*
 	 * don't need child lock because it is not subject
@@ -1677,7 +1700,8 @@ void d_set_d_op(struct dentry *dentry, c
 				DCACHE_OP_REVALIDATE	|
 				DCACHE_OP_WEAK_REVALIDATE	|
 				DCACHE_OP_DELETE	|
-				DCACHE_OP_SELECT_INODE));
+				DCACHE_OP_SELECT_INODE	|
+				DCACHE_OP_REAL));
 	dentry->d_op = op;
 	if (!op)
 		return;
@@ -1695,6 +1719,8 @@ void d_set_d_op(struct dentry *dentry, c
 		dentry->d_flags |= DCACHE_OP_PRUNE;
 	if (op->d_select_inode)
 		dentry->d_flags |= DCACHE_OP_SELECT_INODE;
+	if (op->d_real)
+		dentry->d_flags |= DCACHE_OP_REAL;
 
 }
 EXPORT_SYMBOL(d_set_d_op);
@@ -1757,8 +1783,9 @@ static void __d_instantiate(struct dentr
 	spin_lock(&dentry->d_lock);
 	if (inode)
 		hlist_add_head(&dentry->d_u.d_alias, &inode->i_dentry);
+	raw_write_seqcount_begin(&dentry->d_seq);
 	__d_set_inode_and_type(dentry, inode, add_flags);
-	dentry_rcuwalk_invalidate(dentry);
+	raw_write_seqcount_end(&dentry->d_seq);
 	spin_unlock(&dentry->d_lock);
 	fsnotify_d_instantiate(dentry, inode);
 }
@@ -2420,7 +2447,6 @@ static void __d_rehash(struct dentry * e
 {
 	BUG_ON(!d_unhashed(entry));
 	hlist_bl_lock(b);
-	entry->d_flags |= DCACHE_RCUACCESS;
 	hlist_bl_add_head_rcu(&entry->d_hash, b);
 	hlist_bl_unlock(b);
 }
@@ -2639,6 +2665,7 @@ static void __d_move(struct dentry *dent
 	/* ... and switch them in the tree */
 	if (IS_ROOT(dentry)) {
 		/* splicing a tree */
+		dentry->d_flags |= DCACHE_RCUACCESS;
 		dentry->d_parent = target->d_parent;
 		target->d_parent = target;
 		list_del_init(&target->d_child);
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/debugfs/inode.c linux-libre-4.4.107-gnu/fs/debugfs/inode.c
--- linux-libre-4.4-gnu/fs/debugfs/inode.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/debugfs/inode.c	2017-12-20 04:05:01.000000000 -0500
@@ -457,7 +457,7 @@ struct dentry *debugfs_create_automount(
 	if (unlikely(!inode))
 		return failed_creating(dentry);
 
-	inode->i_mode = S_IFDIR | S_IRWXU | S_IRUGO | S_IXUGO;
+	make_empty_dir_inode(inode);
 	inode->i_flags |= S_AUTOMOUNT;
 	inode->i_private = data;
 	dentry->d_fsdata = (void *)f;
@@ -669,7 +669,7 @@ struct dentry *debugfs_rename(struct den
 {
 	int error;
 	struct dentry *dentry = NULL, *trap;
-	const char *old_name;
+	struct name_snapshot old_name;
 
 	trap = lock_rename(new_dir, old_dir);
 	/* Source or destination directories don't exist? */
@@ -684,19 +684,19 @@ struct dentry *debugfs_rename(struct den
 	if (IS_ERR(dentry) || dentry == trap || d_really_is_positive(dentry))
 		goto exit;
 
-	old_name = fsnotify_oldname_init(old_dentry->d_name.name);
+	take_dentry_name_snapshot(&old_name, old_dentry);
 
 	error = simple_rename(d_inode(old_dir), old_dentry, d_inode(new_dir),
 		dentry);
 	if (error) {
-		fsnotify_oldname_free(old_name);
+		release_dentry_name_snapshot(&old_name);
 		goto exit;
 	}
 	d_move(old_dentry, dentry);
-	fsnotify_move(d_inode(old_dir), d_inode(new_dir), old_name,
+	fsnotify_move(d_inode(old_dir), d_inode(new_dir), old_name.name,
 		d_is_dir(old_dentry),
 		NULL, old_dentry);
-	fsnotify_oldname_free(old_name);
+	release_dentry_name_snapshot(&old_name);
 	unlock_rename(new_dir, old_dir);
 	dput(dentry);
 	return old_dentry;
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/devpts/inode.c linux-libre-4.4.107-gnu/fs/devpts/inode.c
--- linux-libre-4.4-gnu/fs/devpts/inode.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/devpts/inode.c	2017-12-20 04:05:01.000000000 -0500
@@ -128,6 +128,7 @@ static const match_table_t tokens = {
 struct pts_fs_info {
 	struct ida allocated_ptys;
 	struct pts_mount_opts mount_opts;
+	struct super_block *sb;
 	struct dentry *ptmx_dentry;
 };
 
@@ -358,7 +359,7 @@ static const struct super_operations dev
 	.show_options	= devpts_show_options,
 };
 
-static void *new_pts_fs_info(void)
+static void *new_pts_fs_info(struct super_block *sb)
 {
 	struct pts_fs_info *fsi;
 
@@ -369,6 +370,7 @@ static void *new_pts_fs_info(void)
 	ida_init(&fsi->allocated_ptys);
 	fsi->mount_opts.mode = DEVPTS_DEFAULT_MODE;
 	fsi->mount_opts.ptmxmode = DEVPTS_DEFAULT_PTMX_MODE;
+	fsi->sb = sb;
 
 	return fsi;
 }
@@ -384,7 +386,7 @@ devpts_fill_super(struct super_block *s,
 	s->s_op = &devpts_sops;
 	s->s_time_gran = 1;
 
-	s->s_fs_info = new_pts_fs_info();
+	s->s_fs_info = new_pts_fs_info(s);
 	if (!s->s_fs_info)
 		goto fail;
 
@@ -524,17 +526,14 @@ static struct file_system_type devpts_fs
  * to the System V naming convention
  */
 
-int devpts_new_index(struct inode *ptmx_inode)
+int devpts_new_index(struct pts_fs_info *fsi)
 {
-	struct super_block *sb = pts_sb_from_inode(ptmx_inode);
-	struct pts_fs_info *fsi;
 	int index;
 	int ida_ret;
 
-	if (!sb)
+	if (!fsi)
 		return -ENODEV;
 
-	fsi = DEVPTS_SB(sb);
 retry:
 	if (!ida_pre_get(&fsi->allocated_ptys, GFP_KERNEL))
 		return -ENOMEM;
@@ -564,17 +563,38 @@ retry:
 	return index;
 }
 
-void devpts_kill_index(struct inode *ptmx_inode, int idx)
+void devpts_kill_index(struct pts_fs_info *fsi, int idx)
 {
-	struct super_block *sb = pts_sb_from_inode(ptmx_inode);
-	struct pts_fs_info *fsi = DEVPTS_SB(sb);
-
 	mutex_lock(&allocated_ptys_lock);
 	ida_remove(&fsi->allocated_ptys, idx);
 	pty_count--;
 	mutex_unlock(&allocated_ptys_lock);
 }
 
+/*
+ * pty code needs to hold extra references in case of last /dev/tty close
+ */
+struct pts_fs_info *devpts_get_ref(struct inode *ptmx_inode, struct file *file)
+{
+	struct super_block *sb;
+	struct pts_fs_info *fsi;
+
+	sb = pts_sb_from_inode(ptmx_inode);
+	if (!sb)
+		return NULL;
+	fsi = DEVPTS_SB(sb);
+	if (!fsi)
+		return NULL;
+
+	atomic_inc(&sb->s_active);
+	return fsi;
+}
+
+void devpts_put_ref(struct pts_fs_info *fsi)
+{
+	deactivate_super(fsi->sb);
+}
+
 /**
  * devpts_pty_new -- create a new inode in /dev/pts/
  * @ptmx_inode: inode of the master
@@ -584,22 +604,21 @@ void devpts_kill_index(struct inode *ptm
  *
  * The created inode is returned. Remove it from /dev/pts/ by devpts_pty_kill.
  */
-struct inode *devpts_pty_new(struct inode *ptmx_inode, dev_t device, int index,
+struct inode *devpts_pty_new(struct pts_fs_info *fsi, dev_t device, int index,
 		void *priv)
 {
 	struct dentry *dentry;
-	struct super_block *sb = pts_sb_from_inode(ptmx_inode);
+	struct super_block *sb;
 	struct inode *inode;
 	struct dentry *root;
-	struct pts_fs_info *fsi;
 	struct pts_mount_opts *opts;
 	char s[12];
 
-	if (!sb)
+	if (!fsi)
 		return ERR_PTR(-ENODEV);
 
+	sb = fsi->sb;
 	root = sb->s_root;
-	fsi = DEVPTS_SB(sb);
 	opts = &fsi->mount_opts;
 
 	inode = new_inode(sb);
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/direct-io.c linux-libre-4.4.107-gnu/fs/direct-io.c
--- linux-libre-4.4-gnu/fs/direct-io.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/direct-io.c	2017-12-20 04:05:01.000000000 -0500
@@ -472,8 +472,8 @@ static int dio_bio_complete(struct dio *
 		dio->io_error = -EIO;
 
 	if (dio->is_async && dio->rw == READ && dio->should_dirty) {
-		bio_check_pages_dirty(bio);	/* transfers ownership */
 		err = bio->bi_error;
+		bio_check_pages_dirty(bio);	/* transfers ownership */
 	} else {
 		bio_for_each_segment_all(bvec, bio, i) {
 			struct page *page = bvec->bv_page;
@@ -575,7 +575,7 @@ static int dio_set_defer_completion(stru
 /*
  * Call into the fs to map some more disk blocks.  We record the current number
  * of available blocks at sdio->blocks_available.  These are in units of the
- * fs blocksize, (1 << inode->i_blkbits).
+ * fs blocksize, i_blocksize(inode).
  *
  * The fs is allowed to map lots of blocks at once.  If it wants to do that,
  * it uses the passed inode-relative block number as the file offset, as usual.
@@ -823,7 +823,8 @@ out:
 	 */
 	if (sdio->boundary) {
 		ret = dio_send_cur_page(dio, sdio, map_bh);
-		dio_bio_submit(dio, sdio);
+		if (sdio->bio)
+			dio_bio_submit(dio, sdio);
 		page_cache_release(sdio->cur_page);
 		sdio->cur_page = NULL;
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/dlm/lowcomms.c linux-libre-4.4.107-gnu/fs/dlm/lowcomms.c
--- linux-libre-4.4-gnu/fs/dlm/lowcomms.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/dlm/lowcomms.c	2017-12-20 04:05:01.000000000 -0500
@@ -1607,16 +1607,12 @@ void dlm_lowcomms_stop(void)
 	mutex_lock(&connections_lock);
 	dlm_allow_conn = 0;
 	foreach_conn(stop_conn);
+	clean_writequeues();
+	foreach_conn(free_conn);
 	mutex_unlock(&connections_lock);
 
 	work_stop();
 
-	mutex_lock(&connections_lock);
-	clean_writequeues();
-
-	foreach_conn(free_conn);
-
-	mutex_unlock(&connections_lock);
 	kmem_cache_destroy(con_cache);
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/dlm/user.c linux-libre-4.4.107-gnu/fs/dlm/user.c
--- linux-libre-4.4-gnu/fs/dlm/user.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/dlm/user.c	2017-12-20 04:05:01.000000000 -0500
@@ -355,6 +355,10 @@ static int dlm_device_register(struct dl
 	error = misc_register(&ls->ls_device);
 	if (error) {
 		kfree(ls->ls_device.name);
+		/* this has to be set to NULL
+		 * to avoid a double-free in dlm_device_deregister
+		 */
+		ls->ls_device.name = NULL;
 	}
 fail:
 	return error;
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ecryptfs/ecryptfs_kernel.h linux-libre-4.4.107-gnu/fs/ecryptfs/ecryptfs_kernel.h
--- linux-libre-4.4-gnu/fs/ecryptfs/ecryptfs_kernel.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/ecryptfs/ecryptfs_kernel.h	2017-12-20 04:05:01.000000000 -0500
@@ -84,11 +84,16 @@ struct ecryptfs_page_crypt_context {
 static inline struct ecryptfs_auth_tok *
 ecryptfs_get_encrypted_key_payload_data(struct key *key)
 {
-	if (key->type == &key_type_encrypted)
-		return (struct ecryptfs_auth_tok *)
-			(&((struct encrypted_key_payload *)key->payload.data[0])->payload_data);
-	else
+	struct encrypted_key_payload *payload;
+
+	if (key->type != &key_type_encrypted)
 		return NULL;
+
+	payload = key->payload.data[0];
+	if (!payload)
+		return ERR_PTR(-EKEYREVOKED);
+
+	return (struct ecryptfs_auth_tok *)payload->payload_data;
 }
 
 static inline struct key *ecryptfs_get_encrypted_key(char *sig)
@@ -114,12 +119,17 @@ static inline struct ecryptfs_auth_tok *
 ecryptfs_get_key_payload_data(struct key *key)
 {
 	struct ecryptfs_auth_tok *auth_tok;
+	const struct user_key_payload *ukp;
 
 	auth_tok = ecryptfs_get_encrypted_key_payload_data(key);
-	if (!auth_tok)
-		return (struct ecryptfs_auth_tok *)user_key_payload(key)->data;
-	else
+	if (auth_tok)
 		return auth_tok;
+
+	ukp = user_key_payload(key);
+	if (!ukp)
+		return ERR_PTR(-EKEYREVOKED);
+
+	return (struct ecryptfs_auth_tok *)ukp->data;
 }
 
 #define ECRYPTFS_MAX_KEYSET_SIZE 1024
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ecryptfs/file.c linux-libre-4.4.107-gnu/fs/ecryptfs/file.c
--- linux-libre-4.4-gnu/fs/ecryptfs/file.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/ecryptfs/file.c	2017-12-20 04:05:01.000000000 -0500
@@ -112,7 +112,6 @@ static int ecryptfs_readdir(struct file
 		.sb = inode->i_sb,
 	};
 	lower_file = ecryptfs_file_to_lower(file);
-	lower_file->f_pos = ctx->pos;
 	rc = iterate_dir(lower_file, &buf.ctx);
 	ctx->pos = buf.ctx.pos;
 	if (rc < 0)
@@ -170,6 +169,19 @@ out:
 	return rc;
 }
 
+static int ecryptfs_mmap(struct file *file, struct vm_area_struct *vma)
+{
+	struct file *lower_file = ecryptfs_file_to_lower(file);
+	/*
+	 * Don't allow mmap on top of file systems that don't support it
+	 * natively.  If FILESYSTEM_MAX_STACK_DEPTH > 2 or ecryptfs
+	 * allows recursive mounting, this will need to be extended.
+	 */
+	if (!lower_file->f_op->mmap)
+		return -ENODEV;
+	return generic_file_mmap(file, vma);
+}
+
 /**
  * ecryptfs_open
  * @inode: inode speciying file to open
@@ -223,14 +235,6 @@ static int ecryptfs_open(struct inode *i
 	}
 	ecryptfs_set_file_lower(
 		file, ecryptfs_inode_to_private(inode)->lower_file);
-	if (d_is_dir(ecryptfs_dentry)) {
-		ecryptfs_printk(KERN_DEBUG, "This is a directory\n");
-		mutex_lock(&crypt_stat->cs_mutex);
-		crypt_stat->flags &= ~(ECRYPTFS_ENCRYPTED);
-		mutex_unlock(&crypt_stat->cs_mutex);
-		rc = 0;
-		goto out;
-	}
 	rc = read_or_initialize_metadata(ecryptfs_dentry);
 	if (rc)
 		goto out_put;
@@ -247,6 +251,45 @@ out:
 	return rc;
 }
 
+/**
+ * ecryptfs_dir_open
+ * @inode: inode speciying file to open
+ * @file: Structure to return filled in
+ *
+ * Opens the file specified by inode.
+ *
+ * Returns zero on success; non-zero otherwise
+ */
+static int ecryptfs_dir_open(struct inode *inode, struct file *file)
+{
+	struct dentry *ecryptfs_dentry = file->f_path.dentry;
+	/* Private value of ecryptfs_dentry allocated in
+	 * ecryptfs_lookup() */
+	struct ecryptfs_file_info *file_info;
+	struct file *lower_file;
+
+	/* Released in ecryptfs_release or end of function if failure */
+	file_info = kmem_cache_zalloc(ecryptfs_file_info_cache, GFP_KERNEL);
+	ecryptfs_set_file_private(file, file_info);
+	if (unlikely(!file_info)) {
+		ecryptfs_printk(KERN_ERR,
+				"Error attempting to allocate memory\n");
+		return -ENOMEM;
+	}
+	lower_file = dentry_open(ecryptfs_dentry_to_lower_path(ecryptfs_dentry),
+				 file->f_flags, current_cred());
+	if (IS_ERR(lower_file)) {
+		printk(KERN_ERR "%s: Error attempting to initialize "
+			"the lower file for the dentry with name "
+			"[%pd]; rc = [%ld]\n", __func__,
+			ecryptfs_dentry, PTR_ERR(lower_file));
+		kmem_cache_free(ecryptfs_file_info_cache, file_info);
+		return PTR_ERR(lower_file);
+	}
+	ecryptfs_set_file_lower(file, lower_file);
+	return 0;
+}
+
 static int ecryptfs_flush(struct file *file, fl_owner_t td)
 {
 	struct file *lower_file = ecryptfs_file_to_lower(file);
@@ -267,6 +310,19 @@ static int ecryptfs_release(struct inode
 	return 0;
 }
 
+static int ecryptfs_dir_release(struct inode *inode, struct file *file)
+{
+	fput(ecryptfs_file_to_lower(file));
+	kmem_cache_free(ecryptfs_file_info_cache,
+			ecryptfs_file_to_private(file));
+	return 0;
+}
+
+static loff_t ecryptfs_dir_llseek(struct file *file, loff_t offset, int whence)
+{
+	return vfs_llseek(ecryptfs_file_to_lower(file), offset, whence);
+}
+
 static int
 ecryptfs_fsync(struct file *file, loff_t start, loff_t end, int datasync)
 {
@@ -346,25 +402,21 @@ const struct file_operations ecryptfs_di
 #ifdef CONFIG_COMPAT
 	.compat_ioctl = ecryptfs_compat_ioctl,
 #endif
-	.open = ecryptfs_open,
-	.flush = ecryptfs_flush,
-	.release = ecryptfs_release,
+	.open = ecryptfs_dir_open,
+	.release = ecryptfs_dir_release,
 	.fsync = ecryptfs_fsync,
-	.fasync = ecryptfs_fasync,
-	.splice_read = generic_file_splice_read,
-	.llseek = default_llseek,
+	.llseek = ecryptfs_dir_llseek,
 };
 
 const struct file_operations ecryptfs_main_fops = {
 	.llseek = generic_file_llseek,
 	.read_iter = ecryptfs_read_update_atime,
 	.write_iter = generic_file_write_iter,
-	.iterate = ecryptfs_readdir,
 	.unlocked_ioctl = ecryptfs_unlocked_ioctl,
 #ifdef CONFIG_COMPAT
 	.compat_ioctl = ecryptfs_compat_ioctl,
 #endif
-	.mmap = generic_file_mmap,
+	.mmap = ecryptfs_mmap,
 	.open = ecryptfs_open,
 	.flush = ecryptfs_flush,
 	.release = ecryptfs_release,
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ecryptfs/keystore.c linux-libre-4.4.107-gnu/fs/ecryptfs/keystore.c
--- linux-libre-4.4-gnu/fs/ecryptfs/keystore.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/ecryptfs/keystore.c	2017-12-20 04:05:01.000000000 -0500
@@ -458,7 +458,8 @@ out:
  * @auth_tok_key: key containing the authentication token
  * @auth_tok: authentication token
  *
- * Returns zero on valid auth tok; -EINVAL otherwise
+ * Returns zero on valid auth tok; -EINVAL if the payload is invalid; or
+ * -EKEYREVOKED if the key was revoked before we acquired its semaphore.
  */
 static int
 ecryptfs_verify_auth_tok_from_key(struct key *auth_tok_key,
@@ -467,6 +468,12 @@ ecryptfs_verify_auth_tok_from_key(struct
 	int rc = 0;
 
 	(*auth_tok) = ecryptfs_get_key_payload_data(auth_tok_key);
+	if (IS_ERR(*auth_tok)) {
+		rc = PTR_ERR(*auth_tok);
+		*auth_tok = NULL;
+		goto out;
+	}
+
 	if (ecryptfs_verify_version((*auth_tok)->version)) {
 		printk(KERN_ERR "Data structure version mismatch. Userspace "
 		       "tools must match eCryptfs kernel module with major "
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ecryptfs/messaging.c linux-libre-4.4.107-gnu/fs/ecryptfs/messaging.c
--- linux-libre-4.4-gnu/fs/ecryptfs/messaging.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/ecryptfs/messaging.c	2017-12-20 04:05:01.000000000 -0500
@@ -442,15 +442,16 @@ void ecryptfs_release_messaging(void)
 	}
 	if (ecryptfs_daemon_hash) {
 		struct ecryptfs_daemon *daemon;
+		struct hlist_node *n;
 		int i;
 
 		mutex_lock(&ecryptfs_daemon_hash_mux);
 		for (i = 0; i < (1 << ecryptfs_hash_bits); i++) {
 			int rc;
 
-			hlist_for_each_entry(daemon,
-					     &ecryptfs_daemon_hash[i],
-					     euid_chain) {
+			hlist_for_each_entry_safe(daemon, n,
+						  &ecryptfs_daemon_hash[i],
+						  euid_chain) {
 				rc = ecryptfs_exorcise_daemon(daemon);
 				if (rc)
 					printk(KERN_ERR "%s: Error whilst "
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/efivarfs/file.c linux-libre-4.4.107-gnu/fs/efivarfs/file.c
--- linux-libre-4.4-gnu/fs/efivarfs/file.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/efivarfs/file.c	2017-12-20 04:05:01.000000000 -0500
@@ -10,6 +10,7 @@
 #include <linux/efi.h>
 #include <linux/fs.h>
 #include <linux/slab.h>
+#include <linux/mount.h>
 
 #include "internal.h"
 
@@ -103,9 +104,78 @@ out_free:
 	return size;
 }
 
+static int
+efivarfs_ioc_getxflags(struct file *file, void __user *arg)
+{
+	struct inode *inode = file->f_mapping->host;
+	unsigned int i_flags;
+	unsigned int flags = 0;
+
+	i_flags = inode->i_flags;
+	if (i_flags & S_IMMUTABLE)
+		flags |= FS_IMMUTABLE_FL;
+
+	if (copy_to_user(arg, &flags, sizeof(flags)))
+		return -EFAULT;
+	return 0;
+}
+
+static int
+efivarfs_ioc_setxflags(struct file *file, void __user *arg)
+{
+	struct inode *inode = file->f_mapping->host;
+	unsigned int flags;
+	unsigned int i_flags = 0;
+	int error;
+
+	if (!inode_owner_or_capable(inode))
+		return -EACCES;
+
+	if (copy_from_user(&flags, arg, sizeof(flags)))
+		return -EFAULT;
+
+	if (flags & ~FS_IMMUTABLE_FL)
+		return -EOPNOTSUPP;
+
+	if (!capable(CAP_LINUX_IMMUTABLE))
+		return -EPERM;
+
+	if (flags & FS_IMMUTABLE_FL)
+		i_flags |= S_IMMUTABLE;
+
+
+	error = mnt_want_write_file(file);
+	if (error)
+		return error;
+
+	mutex_lock(&inode->i_mutex);
+	inode_set_flags(inode, i_flags, S_IMMUTABLE);
+	mutex_unlock(&inode->i_mutex);
+
+	mnt_drop_write_file(file);
+
+	return 0;
+}
+
+long
+efivarfs_file_ioctl(struct file *file, unsigned int cmd, unsigned long p)
+{
+	void __user *arg = (void __user *)p;
+
+	switch (cmd) {
+	case FS_IOC_GETFLAGS:
+		return efivarfs_ioc_getxflags(file, arg);
+	case FS_IOC_SETFLAGS:
+		return efivarfs_ioc_setxflags(file, arg);
+	}
+
+	return -ENOTTY;
+}
+
 const struct file_operations efivarfs_file_operations = {
 	.open	= simple_open,
 	.read	= efivarfs_file_read,
 	.write	= efivarfs_file_write,
 	.llseek	= no_llseek,
+	.unlocked_ioctl = efivarfs_file_ioctl,
 };
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/efivarfs/inode.c linux-libre-4.4.107-gnu/fs/efivarfs/inode.c
--- linux-libre-4.4-gnu/fs/efivarfs/inode.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/efivarfs/inode.c	2017-12-20 04:05:01.000000000 -0500
@@ -15,7 +15,8 @@
 #include "internal.h"
 
 struct inode *efivarfs_get_inode(struct super_block *sb,
-				const struct inode *dir, int mode, dev_t dev)
+				const struct inode *dir, int mode,
+				dev_t dev, bool is_removable)
 {
 	struct inode *inode = new_inode(sb);
 
@@ -23,6 +24,7 @@ struct inode *efivarfs_get_inode(struct
 		inode->i_ino = get_next_ino();
 		inode->i_mode = mode;
 		inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME;
+		inode->i_flags = is_removable ? 0 : S_IMMUTABLE;
 		switch (mode & S_IFMT) {
 		case S_IFREG:
 			inode->i_fop = &efivarfs_file_operations;
@@ -102,22 +104,17 @@ static void efivarfs_hex_to_guid(const c
 static int efivarfs_create(struct inode *dir, struct dentry *dentry,
 			  umode_t mode, bool excl)
 {
-	struct inode *inode;
+	struct inode *inode = NULL;
 	struct efivar_entry *var;
 	int namelen, i = 0, err = 0;
+	bool is_removable = false;
 
 	if (!efivarfs_valid_name(dentry->d_name.name, dentry->d_name.len))
 		return -EINVAL;
 
-	inode = efivarfs_get_inode(dir->i_sb, dir, mode, 0);
-	if (!inode)
-		return -ENOMEM;
-
 	var = kzalloc(sizeof(struct efivar_entry), GFP_KERNEL);
-	if (!var) {
-		err = -ENOMEM;
-		goto out;
-	}
+	if (!var)
+		return -ENOMEM;
 
 	/* length of the variable name itself: remove GUID and separator */
 	namelen = dentry->d_name.len - EFI_VARIABLE_GUID_LEN - 1;
@@ -125,6 +122,16 @@ static int efivarfs_create(struct inode
 	efivarfs_hex_to_guid(dentry->d_name.name + namelen + 1,
 			&var->var.VendorGuid);
 
+	if (efivar_variable_is_removable(var->var.VendorGuid,
+					 dentry->d_name.name, namelen))
+		is_removable = true;
+
+	inode = efivarfs_get_inode(dir->i_sb, dir, mode, 0, is_removable);
+	if (!inode) {
+		err = -ENOMEM;
+		goto out;
+	}
+
 	for (i = 0; i < namelen; i++)
 		var->var.VariableName[i] = dentry->d_name.name[i];
 
@@ -138,7 +145,8 @@ static int efivarfs_create(struct inode
 out:
 	if (err) {
 		kfree(var);
-		iput(inode);
+		if (inode)
+			iput(inode);
 	}
 	return err;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/efivarfs/internal.h linux-libre-4.4.107-gnu/fs/efivarfs/internal.h
--- linux-libre-4.4-gnu/fs/efivarfs/internal.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/efivarfs/internal.h	2017-12-20 04:05:01.000000000 -0500
@@ -15,7 +15,8 @@ extern const struct file_operations efiv
 extern const struct inode_operations efivarfs_dir_inode_operations;
 extern bool efivarfs_valid_name(const char *str, int len);
 extern struct inode *efivarfs_get_inode(struct super_block *sb,
-			const struct inode *dir, int mode, dev_t dev);
+			const struct inode *dir, int mode, dev_t dev,
+			bool is_removable);
 
 extern struct list_head efivarfs_list;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/efivarfs/super.c linux-libre-4.4.107-gnu/fs/efivarfs/super.c
--- linux-libre-4.4-gnu/fs/efivarfs/super.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/efivarfs/super.c	2017-12-20 04:05:01.000000000 -0500
@@ -118,8 +118,9 @@ static int efivarfs_callback(efi_char16_
 	struct dentry *dentry, *root = sb->s_root;
 	unsigned long size = 0;
 	char *name;
-	int len, i;
+	int len;
 	int err = -ENOMEM;
+	bool is_removable = false;
 
 	entry = kzalloc(sizeof(*entry), GFP_KERNEL);
 	if (!entry)
@@ -128,15 +129,17 @@ static int efivarfs_callback(efi_char16_
 	memcpy(entry->var.VariableName, name16, name_size);
 	memcpy(&(entry->var.VendorGuid), &vendor, sizeof(efi_guid_t));
 
-	len = ucs2_strlen(entry->var.VariableName);
+	len = ucs2_utf8size(entry->var.VariableName);
 
 	/* name, plus '-', plus GUID, plus NUL*/
 	name = kmalloc(len + 1 + EFI_VARIABLE_GUID_LEN + 1, GFP_KERNEL);
 	if (!name)
 		goto fail;
 
-	for (i = 0; i < len; i++)
-		name[i] = entry->var.VariableName[i] & 0xFF;
+	ucs2_as_utf8(name, entry->var.VariableName, len);
+
+	if (efivar_variable_is_removable(entry->var.VendorGuid, name, len))
+		is_removable = true;
 
 	name[len] = '-';
 
@@ -144,7 +147,8 @@ static int efivarfs_callback(efi_char16_
 
 	name[len + EFI_VARIABLE_GUID_LEN+1] = '\0';
 
-	inode = efivarfs_get_inode(sb, d_inode(root), S_IFREG | 0644, 0);
+	inode = efivarfs_get_inode(sb, d_inode(root), S_IFREG | 0644, 0,
+				   is_removable);
 	if (!inode)
 		goto fail_name;
 
@@ -200,7 +204,7 @@ static int efivarfs_fill_super(struct su
 	sb->s_d_op		= &efivarfs_d_ops;
 	sb->s_time_gran         = 1;
 
-	inode = efivarfs_get_inode(sb, NULL, S_IFDIR | 0755, 0);
+	inode = efivarfs_get_inode(sb, NULL, S_IFDIR | 0755, 0, true);
 	if (!inode)
 		return -ENOMEM;
 	inode->i_op = &efivarfs_dir_inode_operations;
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/eventpoll.c linux-libre-4.4.107-gnu/fs/eventpoll.c
--- linux-libre-4.4-gnu/fs/eventpoll.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/eventpoll.c	2017-12-20 04:05:01.000000000 -0500
@@ -518,8 +518,13 @@ static void ep_remove_wait_queue(struct
 	wait_queue_head_t *whead;
 
 	rcu_read_lock();
-	/* If it is cleared by POLLFREE, it should be rcu-safe */
-	whead = rcu_dereference(pwq->whead);
+	/*
+	 * If it is cleared by POLLFREE, it should be rcu-safe.
+	 * If we read NULL we need a barrier paired with
+	 * smp_store_release() in ep_poll_callback(), otherwise
+	 * we rely on whead->lock.
+	 */
+	whead = smp_load_acquire(&pwq->whead);
 	if (whead)
 		remove_wait_queue(whead, &pwq->wait);
 	rcu_read_unlock();
@@ -1003,17 +1008,6 @@ static int ep_poll_callback(wait_queue_t
 	struct epitem *epi = ep_item_from_wait(wait);
 	struct eventpoll *ep = epi->ep;
 
-	if ((unsigned long)key & POLLFREE) {
-		ep_pwq_from_wait(wait)->whead = NULL;
-		/*
-		 * whead = NULL above can race with ep_remove_wait_queue()
-		 * which can do another remove_wait_queue() after us, so we
-		 * can't use __remove_wait_queue(). whead->lock is held by
-		 * the caller.
-		 */
-		list_del_init(&wait->task_list);
-	}
-
 	spin_lock_irqsave(&ep->lock, flags);
 
 	/*
@@ -1078,6 +1072,23 @@ out_unlock:
 	if (pwake)
 		ep_poll_safewake(&ep->poll_wait);
 
+
+	if ((unsigned long)key & POLLFREE) {
+		/*
+		 * If we race with ep_remove_wait_queue() it can miss
+		 * ->whead = NULL and do another remove_wait_queue() after
+		 * us, so we can't use __remove_wait_queue().
+		 */
+		list_del_init(&wait->task_list);
+		/*
+		 * ->whead != NULL protects us from the race with ep_free()
+		 * or ep_remove(), ep_remove_wait_queue() takes whead->lock
+		 * held by the caller. Once we nullify it, nothing protects
+		 * ep/epi or even wait.
+		 */
+		smp_store_release(&ep_pwq_from_wait(wait)->whead, NULL);
+	}
+
 	return 1;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/exec.c linux-libre-4.4.107-gnu/fs/exec.c
--- linux-libre-4.4-gnu/fs/exec.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/exec.c	2017-12-20 04:05:01.000000000 -0500
@@ -19,7 +19,7 @@
  * current->executable is only used by the procfs.  This allows a dispatch
  * table to check for several different types  of binary formats.  We keep
  * trying until we recognize the file or we run out of supported binary
- * formats. 
+ * formats.
  */
 
 #include <linux/slab.h>
@@ -56,6 +56,7 @@
 #include <linux/pipe_fs_i.h>
 #include <linux/oom.h>
 #include <linux/compat.h>
+#include <linux/user_namespace.h>
 
 #include <asm/uaccess.h>
 #include <asm/mmu_context.h>
@@ -205,7 +206,24 @@ static struct page *get_arg_page(struct
 
 	if (write) {
 		unsigned long size = bprm->vma->vm_end - bprm->vma->vm_start;
-		struct rlimit *rlim;
+		unsigned long ptr_size, limit;
+
+		/*
+		 * Since the stack will hold pointers to the strings, we
+		 * must account for them as well.
+		 *
+		 * The size calculation is the entire vma while each arg page is
+		 * built, so each time we get here it's calculating how far it
+		 * is currently (rather than each call being just the newly
+		 * added size from the arg page).  As a result, we need to
+		 * always add the entire size of the pointers, so that on the
+		 * last call to get_arg_page() we'll actually have the entire
+		 * correct size.
+		 */
+		ptr_size = (bprm->argc + bprm->envc) * sizeof(void *);
+		if (ptr_size > ULONG_MAX - size)
+			goto fail;
+		size += ptr_size;
 
 		acct_arg_size(bprm, size / PAGE_SIZE);
 
@@ -217,20 +235,24 @@ static struct page *get_arg_page(struct
 			return page;
 
 		/*
-		 * Limit to 1/4-th the stack size for the argv+env strings.
+		 * Limit to 1/4 of the max stack size or 3/4 of _STK_LIM
+		 * (whichever is smaller) for the argv+env strings.
 		 * This ensures that:
 		 *  - the remaining binfmt code will not run out of stack space,
 		 *  - the program will have a reasonable amount of stack left
 		 *    to work from.
 		 */
-		rlim = current->signal->rlim;
-		if (size > ACCESS_ONCE(rlim[RLIMIT_STACK].rlim_cur) / 4) {
-			put_page(page);
-			return NULL;
-		}
+		limit = _STK_LIM / 4 * 3;
+		limit = min(limit, rlimit(RLIMIT_STACK) / 4);
+		if (size > limit)
+			goto fail;
 	}
 
 	return page;
+
+fail:
+	put_page(page);
+	return NULL;
 }
 
 static void put_arg_page(struct page *page)
@@ -1114,6 +1136,13 @@ int flush_old_exec(struct linux_binprm *
 	flush_thread();
 	current->personality &= ~bprm->per_clear;
 
+	/*
+	 * We have to apply CLOEXEC before we change whether the process is
+	 * dumpable (in setup_new_exec) to avoid a race with a process in userspace
+	 * trying to access the should-be-closed file descriptors of a process
+	 * undergoing exec(2).
+	 */
+	do_close_on_exec(current->files);
 	return 0;
 
 out:
@@ -1123,8 +1152,22 @@ EXPORT_SYMBOL(flush_old_exec);
 
 void would_dump(struct linux_binprm *bprm, struct file *file)
 {
-	if (inode_permission(file_inode(file), MAY_READ) < 0)
+	struct inode *inode = file_inode(file);
+	if (inode_permission(inode, MAY_READ) < 0) {
+		struct user_namespace *old, *user_ns;
 		bprm->interp_flags |= BINPRM_FLAGS_ENFORCE_NONDUMP;
+
+		/* Ensure mm->user_ns contains the executable */
+		user_ns = old = bprm->mm->user_ns;
+		while ((user_ns != &init_user_ns) &&
+		       !privileged_wrt_inode_uidgid(user_ns, inode))
+			user_ns = user_ns->parent;
+
+		if (old != user_ns) {
+			bprm->mm->user_ns = get_user_ns(user_ns);
+			put_user_ns(old);
+		}
+	}
 }
 EXPORT_SYMBOL(would_dump);
 
@@ -1154,7 +1197,6 @@ void setup_new_exec(struct linux_binprm
 	    !gid_eq(bprm->cred->gid, current_egid())) {
 		current->pdeath_signal = 0;
 	} else {
-		would_dump(bprm, bprm->file);
 		if (bprm->interp_flags & BINPRM_FLAGS_ENFORCE_NONDUMP)
 			set_dumpable(current->mm, suid_dumpable);
 	}
@@ -1163,7 +1205,6 @@ void setup_new_exec(struct linux_binprm
 	   group */
 	current->self_exec_id++;
 	flush_signal_handlers(current, 0);
-	do_close_on_exec(current->files);
 }
 EXPORT_SYMBOL(setup_new_exec);
 
@@ -1254,7 +1295,7 @@ static void check_unsafe_exec(struct lin
 	unsigned n_fs;
 
 	if (p->ptrace) {
-		if (p->ptrace & PT_PTRACE_CAP)
+		if (ptracer_capable(p, current_user_ns()))
 			bprm->unsafe |= LSM_UNSAFE_PTRACE_CAP;
 		else
 			bprm->unsafe |= LSM_UNSAFE_PTRACE;
@@ -1587,6 +1628,8 @@ static int do_execveat_common(int fd, st
 	if (retval < 0)
 		goto out;
 
+	would_dump(bprm, bprm->file);
+
 	retval = exec_binprm(bprm);
 	if (retval < 0)
 		goto out;
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ext2/acl.c linux-libre-4.4.107-gnu/fs/ext2/acl.c
--- linux-libre-4.4-gnu/fs/ext2/acl.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/ext2/acl.c	2017-12-20 04:05:01.000000000 -0500
@@ -193,15 +193,11 @@ ext2_set_acl(struct inode *inode, struct
 		case ACL_TYPE_ACCESS:
 			name_index = EXT2_XATTR_INDEX_POSIX_ACL_ACCESS;
 			if (acl) {
-				error = posix_acl_equiv_mode(acl, &inode->i_mode);
-				if (error < 0)
+				error = posix_acl_update_mode(inode, &inode->i_mode, &acl);
+				if (error)
 					return error;
-				else {
-					inode->i_ctime = CURRENT_TIME_SEC;
-					mark_inode_dirty(inode);
-					if (error == 0)
-						acl = NULL;
-				}
+				inode->i_ctime = CURRENT_TIME_SEC;
+				mark_inode_dirty(inode);
 			}
 			break;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ext4/acl.c linux-libre-4.4.107-gnu/fs/ext4/acl.c
--- linux-libre-4.4-gnu/fs/ext4/acl.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/ext4/acl.c	2017-12-20 04:05:01.000000000 -0500
@@ -195,17 +195,6 @@ __ext4_set_acl(handle_t *handle, struct
 	switch (type) {
 	case ACL_TYPE_ACCESS:
 		name_index = EXT4_XATTR_INDEX_POSIX_ACL_ACCESS;
-		if (acl) {
-			error = posix_acl_equiv_mode(acl, &inode->i_mode);
-			if (error < 0)
-				return error;
-			else {
-				inode->i_ctime = ext4_current_time(inode);
-				ext4_mark_inode_dirty(handle, inode);
-				if (error == 0)
-					acl = NULL;
-			}
-		}
 		break;
 
 	case ACL_TYPE_DEFAULT:
@@ -238,6 +227,8 @@ ext4_set_acl(struct inode *inode, struct
 {
 	handle_t *handle;
 	int error, retries = 0;
+	umode_t mode = inode->i_mode;
+	int update_mode = 0;
 
 retry:
 	handle = ext4_journal_start(inode, EXT4_HT_XATTR,
@@ -245,7 +236,20 @@ retry:
 	if (IS_ERR(handle))
 		return PTR_ERR(handle);
 
+	if ((type == ACL_TYPE_ACCESS) && acl) {
+		error = posix_acl_update_mode(inode, &mode, &acl);
+		if (error)
+			goto out_stop;
+		update_mode = 1;
+	}
+
 	error = __ext4_set_acl(handle, inode, type, acl);
+	if (!error && update_mode) {
+		inode->i_mode = mode;
+		inode->i_ctime = ext4_current_time(inode);
+		ext4_mark_inode_dirty(handle, inode);
+	}
+out_stop:
 	ext4_journal_stop(handle);
 	if (error == -ENOSPC && ext4_should_retry_alloc(inode->i_sb, &retries))
 		goto retry;
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ext4/balloc.c linux-libre-4.4.107-gnu/fs/ext4/balloc.c
--- linux-libre-4.4-gnu/fs/ext4/balloc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/ext4/balloc.c	2017-12-20 04:05:01.000000000 -0500
@@ -191,7 +191,6 @@ static int ext4_init_block_bitmap(struct
 	/* If checksum is bad mark all blocks used to prevent allocation
 	 * essentially implementing a per-group read-only flag. */
 	if (!ext4_group_desc_csum_verify(sb, block_group, gdp)) {
-		ext4_error(sb, "Checksum bad for group %u", block_group);
 		grp = ext4_get_group_info(sb, block_group);
 		if (!EXT4_MB_GRP_BBITMAP_CORRUPT(grp))
 			percpu_counter_sub(&sbi->s_freeclusters_counter,
@@ -209,6 +208,9 @@ static int ext4_init_block_bitmap(struct
 	memset(bh->b_data, 0, sb->s_blocksize);
 
 	bit_max = ext4_num_base_meta_clusters(sb, block_group);
+	if ((bit_max >> 3) >= bh->b_size)
+		return -EFSCORRUPTED;
+
 	for (bit = 0; bit < bit_max; bit++)
 		ext4_set_bit(bit, bh->b_data);
 
@@ -442,14 +444,16 @@ ext4_read_block_bitmap_nowait(struct sup
 	}
 	ext4_lock_group(sb, block_group);
 	if (desc->bg_flags & cpu_to_le16(EXT4_BG_BLOCK_UNINIT)) {
-
 		err = ext4_init_block_bitmap(sb, bh, block_group, desc);
 		set_bitmap_uptodate(bh);
 		set_buffer_uptodate(bh);
 		ext4_unlock_group(sb, block_group);
 		unlock_buffer(bh);
-		if (err)
+		if (err) {
+			ext4_error(sb, "Failed to init block bitmap for group "
+				   "%u: %d", block_group, err);
 			goto out;
+		}
 		goto verify;
 	}
 	ext4_unlock_group(sb, block_group);
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ext4/crypto.c linux-libre-4.4.107-gnu/fs/ext4/crypto.c
--- linux-libre-4.4-gnu/fs/ext4/crypto.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/ext4/crypto.c	2017-12-20 04:05:01.000000000 -0500
@@ -34,6 +34,7 @@
 #include <linux/random.h>
 #include <linux/scatterlist.h>
 #include <linux/spinlock_types.h>
+#include <linux/namei.h>
 
 #include "ext4_extents.h"
 #include "xattr.h"
@@ -93,7 +94,8 @@ void ext4_release_crypto_ctx(struct ext4
  * Return: An allocated and initialized encryption context on success; error
  * value or NULL otherwise.
  */
-struct ext4_crypto_ctx *ext4_get_crypto_ctx(struct inode *inode)
+struct ext4_crypto_ctx *ext4_get_crypto_ctx(struct inode *inode,
+					    gfp_t gfp_flags)
 {
 	struct ext4_crypto_ctx *ctx = NULL;
 	int res = 0;
@@ -120,7 +122,7 @@ struct ext4_crypto_ctx *ext4_get_crypto_
 		list_del(&ctx->free_list);
 	spin_unlock_irqrestore(&ext4_crypto_ctx_lock, flags);
 	if (!ctx) {
-		ctx = kmem_cache_zalloc(ext4_crypto_ctx_cachep, GFP_NOFS);
+		ctx = kmem_cache_zalloc(ext4_crypto_ctx_cachep, gfp_flags);
 		if (!ctx) {
 			res = -ENOMEM;
 			goto out;
@@ -257,7 +259,8 @@ static int ext4_page_crypto(struct inode
 			    ext4_direction_t rw,
 			    pgoff_t index,
 			    struct page *src_page,
-			    struct page *dest_page)
+			    struct page *dest_page,
+			    gfp_t gfp_flags)
 
 {
 	u8 xts_tweak[EXT4_XTS_TWEAK_SIZE];
@@ -268,7 +271,7 @@ static int ext4_page_crypto(struct inode
 	struct crypto_ablkcipher *tfm = ci->ci_ctfm;
 	int res = 0;
 
-	req = ablkcipher_request_alloc(tfm, GFP_NOFS);
+	req = ablkcipher_request_alloc(tfm, gfp_flags);
 	if (!req) {
 		printk_ratelimited(KERN_ERR
 				   "%s: crypto_request_alloc() failed\n",
@@ -309,9 +312,10 @@ static int ext4_page_crypto(struct inode
 	return 0;
 }
 
-static struct page *alloc_bounce_page(struct ext4_crypto_ctx *ctx)
+static struct page *alloc_bounce_page(struct ext4_crypto_ctx *ctx,
+				      gfp_t gfp_flags)
 {
-	ctx->w.bounce_page = mempool_alloc(ext4_bounce_page_pool, GFP_NOWAIT);
+	ctx->w.bounce_page = mempool_alloc(ext4_bounce_page_pool, gfp_flags);
 	if (ctx->w.bounce_page == NULL)
 		return ERR_PTR(-ENOMEM);
 	ctx->flags |= EXT4_WRITE_PATH_FL;
@@ -334,7 +338,8 @@ static struct page *alloc_bounce_page(st
  * error value or NULL.
  */
 struct page *ext4_encrypt(struct inode *inode,
-			  struct page *plaintext_page)
+			  struct page *plaintext_page,
+			  gfp_t gfp_flags)
 {
 	struct ext4_crypto_ctx *ctx;
 	struct page *ciphertext_page = NULL;
@@ -342,17 +347,17 @@ struct page *ext4_encrypt(struct inode *
 
 	BUG_ON(!PageLocked(plaintext_page));
 
-	ctx = ext4_get_crypto_ctx(inode);
+	ctx = ext4_get_crypto_ctx(inode, gfp_flags);
 	if (IS_ERR(ctx))
 		return (struct page *) ctx;
 
 	/* The encryption operation will require a bounce page. */
-	ciphertext_page = alloc_bounce_page(ctx);
+	ciphertext_page = alloc_bounce_page(ctx, gfp_flags);
 	if (IS_ERR(ciphertext_page))
 		goto errout;
 	ctx->w.control_page = plaintext_page;
 	err = ext4_page_crypto(inode, EXT4_ENCRYPT, plaintext_page->index,
-			       plaintext_page, ciphertext_page);
+			       plaintext_page, ciphertext_page, gfp_flags);
 	if (err) {
 		ciphertext_page = ERR_PTR(err);
 	errout:
@@ -380,8 +385,8 @@ int ext4_decrypt(struct page *page)
 {
 	BUG_ON(!PageLocked(page));
 
-	return ext4_page_crypto(page->mapping->host,
-				EXT4_DECRYPT, page->index, page, page);
+	return ext4_page_crypto(page->mapping->host, EXT4_DECRYPT,
+				page->index, page, page, GFP_NOFS);
 }
 
 int ext4_encrypted_zeroout(struct inode *inode, struct ext4_extent *ex)
@@ -402,11 +407,11 @@ int ext4_encrypted_zeroout(struct inode
 
 	BUG_ON(inode->i_sb->s_blocksize != PAGE_CACHE_SIZE);
 
-	ctx = ext4_get_crypto_ctx(inode);
+	ctx = ext4_get_crypto_ctx(inode, GFP_NOFS);
 	if (IS_ERR(ctx))
 		return PTR_ERR(ctx);
 
-	ciphertext_page = alloc_bounce_page(ctx);
+	ciphertext_page = alloc_bounce_page(ctx, GFP_NOWAIT);
 	if (IS_ERR(ciphertext_page)) {
 		err = PTR_ERR(ciphertext_page);
 		goto errout;
@@ -414,11 +419,12 @@ int ext4_encrypted_zeroout(struct inode
 
 	while (len--) {
 		err = ext4_page_crypto(inode, EXT4_ENCRYPT, lblk,
-				       ZERO_PAGE(0), ciphertext_page);
+				       ZERO_PAGE(0), ciphertext_page,
+				       GFP_NOFS);
 		if (err)
 			goto errout;
 
-		bio = bio_alloc(GFP_KERNEL, 1);
+		bio = bio_alloc(GFP_NOWAIT, 1);
 		if (!bio) {
 			err = -ENOMEM;
 			goto errout;
@@ -469,3 +475,61 @@ uint32_t ext4_validate_encryption_key_si
 		return size;
 	return 0;
 }
+
+/*
+ * Validate dentries for encrypted directories to make sure we aren't
+ * potentially caching stale data after a key has been added or
+ * removed.
+ */
+static int ext4_d_revalidate(struct dentry *dentry, unsigned int flags)
+{
+	struct dentry *dir;
+	struct ext4_crypt_info *ci;
+	int dir_has_key, cached_with_key;
+
+	if (flags & LOOKUP_RCU)
+		return -ECHILD;
+
+	dir = dget_parent(dentry);
+	if (!ext4_encrypted_inode(d_inode(dir))) {
+		dput(dir);
+		return 0;
+	}
+	ci = EXT4_I(d_inode(dir))->i_crypt_info;
+
+	/* this should eventually be an flag in d_flags */
+	cached_with_key = dentry->d_fsdata != NULL;
+	dir_has_key = (ci != NULL);
+	dput(dir);
+
+	/*
+	 * If the dentry was cached without the key, and it is a
+	 * negative dentry, it might be a valid name.  We can't check
+	 * if the key has since been made available due to locking
+	 * reasons, so we fail the validation so ext4_lookup() can do
+	 * this check.
+	 *
+	 * We also fail the validation if the dentry was created with
+	 * the key present, but we no longer have the key, or vice versa.
+	 */
+	if ((!cached_with_key && d_is_negative(dentry)) ||
+	    (!cached_with_key && dir_has_key) ||
+	    (cached_with_key && !dir_has_key)) {
+#if 0				/* Revalidation debug */
+		char buf[80];
+		char *cp = simple_dname(dentry, buf, sizeof(buf));
+
+		if (IS_ERR(cp))
+			cp = (char *) "???";
+		pr_err("revalidate: %s %p %d %d %d\n", cp, dentry->d_fsdata,
+		       cached_with_key, d_is_negative(dentry),
+		       dir_has_key);
+#endif
+		return 0;
+	}
+	return 1;
+}
+
+const struct dentry_operations ext4_encrypted_d_ops = {
+	.d_revalidate = ext4_d_revalidate,
+};
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ext4/crypto_fname.c linux-libre-4.4.107-gnu/fs/ext4/crypto_fname.c
--- linux-libre-4.4-gnu/fs/ext4/crypto_fname.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/ext4/crypto_fname.c	2017-12-20 04:05:01.000000000 -0500
@@ -343,7 +343,7 @@ int _ext4_fname_disk_to_usr(struct inode
 		memcpy(buf+4, &hinfo->minor_hash, 4);
 	} else
 		memset(buf, 0, 8);
-	memcpy(buf + 8, iname->name + iname->len - 16, 16);
+	memcpy(buf + 8, iname->name + ((iname->len - 17) & ~15), 16);
 	oname->name[0] = '_';
 	ret = digest_encode(buf, 24, oname->name+1);
 	oname->len = ret + 1;
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ext4/crypto_key.c linux-libre-4.4.107-gnu/fs/ext4/crypto_key.c
--- linux-libre-4.4-gnu/fs/ext4/crypto_key.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/ext4/crypto_key.c	2017-12-20 04:05:01.000000000 -0500
@@ -88,8 +88,6 @@ void ext4_free_crypt_info(struct ext4_cr
 	if (!ci)
 		return;
 
-	if (ci->ci_keyring_key)
-		key_put(ci->ci_keyring_key);
 	crypto_free_ablkcipher(ci->ci_ctfm);
 	kmem_cache_free(ext4_crypt_info_cachep, ci);
 }
@@ -111,7 +109,7 @@ void ext4_free_encryption_info(struct in
 	ext4_free_crypt_info(ci);
 }
 
-int _ext4_get_encryption_info(struct inode *inode)
+int ext4_get_encryption_info(struct inode *inode)
 {
 	struct ext4_inode_info *ei = EXT4_I(inode);
 	struct ext4_crypt_info *crypt_info;
@@ -128,21 +126,12 @@ int _ext4_get_encryption_info(struct ino
 	char mode;
 	int res;
 
-	if (!ext4_read_workqueue) {
-		res = ext4_init_crypto();
-		if (res)
-			return res;
-	}
+	if (ei->i_crypt_info)
+		return 0;
 
-retry:
-	crypt_info = ACCESS_ONCE(ei->i_crypt_info);
-	if (crypt_info) {
-		if (!crypt_info->ci_keyring_key ||
-		    key_validate(crypt_info->ci_keyring_key) == 0)
-			return 0;
-		ext4_free_encryption_info(inode, crypt_info);
-		goto retry;
-	}
+	res = ext4_init_crypto();
+	if (res)
+		return res;
 
 	res = ext4_xattr_get(inode, EXT4_XATTR_INDEX_ENCRYPTION,
 				 EXT4_XATTR_NAME_ENCRYPTION_CONTEXT,
@@ -166,7 +155,6 @@ retry:
 	crypt_info->ci_data_mode = ctx.contents_encryption_mode;
 	crypt_info->ci_filename_mode = ctx.filenames_encryption_mode;
 	crypt_info->ci_ctfm = NULL;
-	crypt_info->ci_keyring_key = NULL;
 	memcpy(crypt_info->ci_master_key, ctx.master_key_descriptor,
 	       sizeof(crypt_info->ci_master_key));
 	if (S_ISREG(inode->i_mode))
@@ -206,16 +194,23 @@ retry:
 		keyring_key = NULL;
 		goto out;
 	}
-	crypt_info->ci_keyring_key = keyring_key;
 	if (keyring_key->type != &key_type_logon) {
 		printk_once(KERN_WARNING
 			    "ext4: key type must be logon\n");
 		res = -ENOKEY;
 		goto out;
 	}
+	down_read(&keyring_key->sem);
 	ukp = user_key_payload(keyring_key);
+	if (!ukp) {
+		/* key was revoked before we acquired its semaphore */
+		res = -EKEYREVOKED;
+		up_read(&keyring_key->sem);
+		goto out;
+	}
 	if (ukp->datalen != sizeof(struct ext4_encryption_key)) {
 		res = -EINVAL;
+		up_read(&keyring_key->sem);
 		goto out;
 	}
 	master_key = (struct ext4_encryption_key *)ukp->data;
@@ -226,10 +221,12 @@ retry:
 			    "ext4: key size incorrect: %d\n",
 			    master_key->size);
 		res = -ENOKEY;
+		up_read(&keyring_key->sem);
 		goto out;
 	}
 	res = ext4_derive_key_aes(ctx.nonce, master_key->raw,
 				  raw_key);
+	up_read(&keyring_key->sem);
 	if (res)
 		goto out;
 got_key:
@@ -249,16 +246,13 @@ got_key:
 				       ext4_encryption_key_size(mode));
 	if (res)
 		goto out;
-	memzero_explicit(raw_key, sizeof(raw_key));
-	if (cmpxchg(&ei->i_crypt_info, NULL, crypt_info) != NULL) {
-		ext4_free_crypt_info(crypt_info);
-		goto retry;
-	}
-	return 0;
 
+	if (cmpxchg(&ei->i_crypt_info, NULL, crypt_info) == NULL)
+		crypt_info = NULL;
 out:
 	if (res == -ENOKEY)
 		res = 0;
+	key_put(keyring_key);
 	ext4_free_crypt_info(crypt_info);
 	memzero_explicit(raw_key, sizeof(raw_key));
 	return res;
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ext4/crypto_policy.c linux-libre-4.4.107-gnu/fs/ext4/crypto_policy.c
--- linux-libre-4.4-gnu/fs/ext4/crypto_policy.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/ext4/crypto_policy.c	2017-12-20 04:05:01.000000000 -0500
@@ -102,6 +102,9 @@ static int ext4_create_encryption_contex
 int ext4_process_policy(const struct ext4_encryption_policy *policy,
 			struct inode *inode)
 {
+	if (!inode_owner_or_capable(inode))
+		return -EACCES;
+
 	if (policy->version != 0)
 		return -EINVAL;
 
@@ -145,20 +148,38 @@ int ext4_get_policy(struct inode *inode,
 int ext4_is_child_context_consistent_with_parent(struct inode *parent,
 						 struct inode *child)
 {
-	struct ext4_crypt_info *parent_ci, *child_ci;
+	const struct ext4_crypt_info *parent_ci, *child_ci;
+	struct ext4_encryption_context parent_ctx, child_ctx;
 	int res;
 
-	if ((parent == NULL) || (child == NULL)) {
-		pr_err("parent %p child %p\n", parent, child);
-		WARN_ON(1);	/* Should never happen */
-		return 0;
-	}
-	/* no restrictions if the parent directory is not encrypted */
+	/* No restrictions on file types which are never encrypted */
+	if (!S_ISREG(child->i_mode) && !S_ISDIR(child->i_mode) &&
+	    !S_ISLNK(child->i_mode))
+		return 1;
+
+	/* No restrictions if the parent directory is unencrypted */
 	if (!ext4_encrypted_inode(parent))
 		return 1;
-	/* if the child directory is not encrypted, this is always a problem */
+
+	/* Encrypted directories must not contain unencrypted files */
 	if (!ext4_encrypted_inode(child))
 		return 0;
+
+	/*
+	 * Both parent and child are encrypted, so verify they use the same
+	 * encryption policy.  Compare the fscrypt_info structs if the keys are
+	 * available, otherwise retrieve and compare the fscrypt_contexts.
+	 *
+	 * Note that the fscrypt_context retrieval will be required frequently
+	 * when accessing an encrypted directory tree without the key.
+	 * Performance-wise this is not a big deal because we already don't
+	 * really optimize for file access without the key (to the extent that
+	 * such access is even possible), given that any attempted access
+	 * already causes a fscrypt_context retrieval and keyring search.
+	 *
+	 * In any case, if an unexpected error occurs, fall back to "forbidden".
+	 */
+
 	res = ext4_get_encryption_info(parent);
 	if (res)
 		return 0;
@@ -167,17 +188,35 @@ int ext4_is_child_context_consistent_wit
 		return 0;
 	parent_ci = EXT4_I(parent)->i_crypt_info;
 	child_ci = EXT4_I(child)->i_crypt_info;
-	if (!parent_ci && !child_ci)
-		return 1;
-	if (!parent_ci || !child_ci)
+	if (parent_ci && child_ci) {
+		return memcmp(parent_ci->ci_master_key, child_ci->ci_master_key,
+			      EXT4_KEY_DESCRIPTOR_SIZE) == 0 &&
+			(parent_ci->ci_data_mode == child_ci->ci_data_mode) &&
+			(parent_ci->ci_filename_mode ==
+			 child_ci->ci_filename_mode) &&
+			(parent_ci->ci_flags == child_ci->ci_flags);
+	}
+
+	res = ext4_xattr_get(parent, EXT4_XATTR_INDEX_ENCRYPTION,
+			     EXT4_XATTR_NAME_ENCRYPTION_CONTEXT,
+			     &parent_ctx, sizeof(parent_ctx));
+	if (res != sizeof(parent_ctx))
 		return 0;
 
-	return (memcmp(parent_ci->ci_master_key,
-		       child_ci->ci_master_key,
-		       EXT4_KEY_DESCRIPTOR_SIZE) == 0 &&
-		(parent_ci->ci_data_mode == child_ci->ci_data_mode) &&
-		(parent_ci->ci_filename_mode == child_ci->ci_filename_mode) &&
-		(parent_ci->ci_flags == child_ci->ci_flags));
+	res = ext4_xattr_get(child, EXT4_XATTR_INDEX_ENCRYPTION,
+			     EXT4_XATTR_NAME_ENCRYPTION_CONTEXT,
+			     &child_ctx, sizeof(child_ctx));
+	if (res != sizeof(child_ctx))
+		return 0;
+
+	return memcmp(parent_ctx.master_key_descriptor,
+		      child_ctx.master_key_descriptor,
+		      EXT4_KEY_DESCRIPTOR_SIZE) == 0 &&
+		(parent_ctx.contents_encryption_mode ==
+		 child_ctx.contents_encryption_mode) &&
+		(parent_ctx.filenames_encryption_mode ==
+		 child_ctx.filenames_encryption_mode) &&
+		(parent_ctx.flags == child_ctx.flags);
 }
 
 /**
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ext4/dir.c linux-libre-4.4.107-gnu/fs/ext4/dir.c
--- linux-libre-4.4-gnu/fs/ext4/dir.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/ext4/dir.c	2017-12-20 04:05:01.000000000 -0500
@@ -111,6 +111,12 @@ static int ext4_readdir(struct file *fil
 	int dir_has_error = 0;
 	struct ext4_str fname_crypto_str = {.name = NULL, .len = 0};
 
+	if (ext4_encrypted_inode(inode)) {
+		err = ext4_get_encryption_info(inode);
+		if (err && err != -ENOKEY)
+			return err;
+	}
+
 	if (is_dx_dir(inode)) {
 		err = ext4_dx_readdir(file, ctx);
 		if (err != ERR_BAD_DX_DIR) {
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ext4/ext4_crypto.h linux-libre-4.4.107-gnu/fs/ext4/ext4_crypto.h
--- linux-libre-4.4-gnu/fs/ext4/ext4_crypto.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/ext4/ext4_crypto.h	2017-12-20 04:05:01.000000000 -0500
@@ -78,7 +78,6 @@ struct ext4_crypt_info {
 	char		ci_filename_mode;
 	char		ci_flags;
 	struct crypto_ablkcipher *ci_ctfm;
-	struct key	*ci_keyring_key;
 	char		ci_master_key[EXT4_KEY_DESCRIPTOR_SIZE];
 };
 
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ext4/ext4.h linux-libre-4.4.107-gnu/fs/ext4/ext4.h
--- linux-libre-4.4-gnu/fs/ext4/ext4.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/ext4/ext4.h	2017-12-20 04:05:01.000000000 -0500
@@ -221,6 +221,7 @@ struct ext4_io_submit {
 #define	EXT4_MAX_BLOCK_SIZE		65536
 #define EXT4_MIN_BLOCK_LOG_SIZE		10
 #define EXT4_MAX_BLOCK_LOG_SIZE		16
+#define EXT4_MAX_CLUSTER_LOG_SIZE	30
 #ifdef __KERNEL__
 # define EXT4_BLOCK_SIZE(s)		((s)->s_blocksize)
 #else
@@ -850,6 +851,29 @@ do {									       \
 #include "extents_status.h"
 
 /*
+ * Lock subclasses for i_data_sem in the ext4_inode_info structure.
+ *
+ * These are needed to avoid lockdep false positives when we need to
+ * allocate blocks to the quota inode during ext4_map_blocks(), while
+ * holding i_data_sem for a normal (non-quota) inode.  Since we don't
+ * do quota tracking for the quota inode, this avoids deadlock (as
+ * well as infinite recursion, since it isn't turtles all the way
+ * down...)
+ *
+ *  I_DATA_SEM_NORMAL - Used for most inodes
+ *  I_DATA_SEM_OTHER  - Used by move_inode.c for the second normal inode
+ *			  where the second inode has larger inode number
+ *			  than the first
+ *  I_DATA_SEM_QUOTA  - Used for quota inodes only
+ */
+enum {
+	I_DATA_SEM_NORMAL = 0,
+	I_DATA_SEM_OTHER,
+	I_DATA_SEM_QUOTA,
+};
+
+
+/*
  * fourth extended file system inode data in memory
  */
 struct ext4_inode_info {
@@ -910,6 +934,15 @@ struct ext4_inode_info {
 	 * by other means, so we have i_data_sem.
 	 */
 	struct rw_semaphore i_data_sem;
+	/*
+	 * i_mmap_sem is for serializing page faults with truncate / punch hole
+	 * operations. We have to make sure that new page cannot be faulted in
+	 * a section of the inode that is being punched. We cannot easily use
+	 * i_data_sem for this since we need protection for the whole punch
+	 * operation and i_data_sem ranks below transaction start so we have
+	 * to occasionally drop it.
+	 */
+	struct rw_semaphore i_mmap_sem;
 	struct inode vfs_inode;
 	struct jbd2_inode *jinode;
 
@@ -2228,13 +2261,16 @@ extern struct kmem_cache *ext4_crypt_inf
 bool ext4_valid_contents_enc_mode(uint32_t mode);
 uint32_t ext4_validate_encryption_key_size(uint32_t mode, uint32_t size);
 extern struct workqueue_struct *ext4_read_workqueue;
-struct ext4_crypto_ctx *ext4_get_crypto_ctx(struct inode *inode);
+struct ext4_crypto_ctx *ext4_get_crypto_ctx(struct inode *inode,
+					    gfp_t gfp_flags);
 void ext4_release_crypto_ctx(struct ext4_crypto_ctx *ctx);
 void ext4_restore_control_page(struct page *data_page);
 struct page *ext4_encrypt(struct inode *inode,
-			  struct page *plaintext_page);
+			  struct page *plaintext_page,
+			  gfp_t gfp_flags);
 int ext4_decrypt(struct page *page);
 int ext4_encrypted_zeroout(struct inode *inode, struct ext4_extent *ex);
+extern const struct dentry_operations ext4_encrypted_d_ops;
 
 #ifdef CONFIG_EXT4_FS_ENCRYPTION
 int ext4_init_crypto(void);
@@ -2297,23 +2333,11 @@ static inline void ext4_fname_free_filen
 /* crypto_key.c */
 void ext4_free_crypt_info(struct ext4_crypt_info *ci);
 void ext4_free_encryption_info(struct inode *inode, struct ext4_crypt_info *ci);
-int _ext4_get_encryption_info(struct inode *inode);
 
 #ifdef CONFIG_EXT4_FS_ENCRYPTION
 int ext4_has_encryption_key(struct inode *inode);
 
-static inline int ext4_get_encryption_info(struct inode *inode)
-{
-	struct ext4_crypt_info *ci = EXT4_I(inode)->i_crypt_info;
-
-	if (!ci ||
-	    (ci->ci_keyring_key &&
-	     (ci->ci_keyring_key->flags & ((1 << KEY_FLAG_INVALIDATED) |
-					   (1 << KEY_FLAG_REVOKED) |
-					   (1 << KEY_FLAG_DEAD)))))
-		return _ext4_get_encryption_info(inode);
-	return 0;
-}
+int ext4_get_encryption_info(struct inode *inode);
 
 static inline struct ext4_crypt_info *ext4_encryption_info(struct inode *inode)
 {
@@ -2484,6 +2508,7 @@ extern int ext4_chunk_trans_blocks(struc
 extern int ext4_zero_partial_blocks(handle_t *handle, struct inode *inode,
 			     loff_t lstart, loff_t lend);
 extern int ext4_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf);
+extern int ext4_filemap_fault(struct vm_area_struct *vma, struct vm_fault *vmf);
 extern qsize_t *ext4_get_reserved_space(struct inode *inode);
 extern void ext4_da_update_reserve_space(struct inode *inode,
 					int used, int quota_claim);
@@ -2848,6 +2873,9 @@ static inline int ext4_update_inode_size
 	return changed;
 }
 
+int ext4_update_disksize_before_punch(struct inode *inode, loff_t offset,
+				      loff_t len);
+
 struct ext4_group_info {
 	unsigned long   bb_state;
 	struct rb_root  bb_free_root;
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ext4/ext4_jbd2.h linux-libre-4.4.107-gnu/fs/ext4/ext4_jbd2.h
--- linux-libre-4.4-gnu/fs/ext4/ext4_jbd2.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/ext4/ext4_jbd2.h	2017-12-20 04:05:01.000000000 -0500
@@ -395,17 +395,19 @@ static inline int ext4_inode_journal_mod
 		return EXT4_INODE_WRITEBACK_DATA_MODE;	/* writeback */
 	/* We do not support data journalling with delayed allocation */
 	if (!S_ISREG(inode->i_mode) ||
-	    test_opt(inode->i_sb, DATA_FLAGS) == EXT4_MOUNT_JOURNAL_DATA)
-		return EXT4_INODE_JOURNAL_DATA_MODE;	/* journal data */
-	if (ext4_test_inode_flag(inode, EXT4_INODE_JOURNAL_DATA) &&
-	    !test_opt(inode->i_sb, DELALLOC))
+	    test_opt(inode->i_sb, DATA_FLAGS) == EXT4_MOUNT_JOURNAL_DATA ||
+	    (ext4_test_inode_flag(inode, EXT4_INODE_JOURNAL_DATA) &&
+	    !test_opt(inode->i_sb, DELALLOC))) {
+		/* We do not support data journalling for encrypted data */
+		if (S_ISREG(inode->i_mode) && ext4_encrypted_inode(inode))
+			return EXT4_INODE_ORDERED_DATA_MODE;  /* ordered */
 		return EXT4_INODE_JOURNAL_DATA_MODE;	/* journal data */
+	}
 	if (test_opt(inode->i_sb, DATA_FLAGS) == EXT4_MOUNT_ORDERED_DATA)
 		return EXT4_INODE_ORDERED_DATA_MODE;	/* ordered */
 	if (test_opt(inode->i_sb, DATA_FLAGS) == EXT4_MOUNT_WRITEBACK_DATA)
 		return EXT4_INODE_WRITEBACK_DATA_MODE;	/* writeback */
-	else
-		BUG();
+	BUG();
 }
 
 static inline int ext4_should_journal_data(struct inode *inode)
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ext4/extents.c linux-libre-4.4.107-gnu/fs/ext4/extents.c
--- linux-libre-4.4-gnu/fs/ext4/extents.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/ext4/extents.c	2017-12-20 04:05:01.000000000 -0500
@@ -376,9 +376,13 @@ static int ext4_valid_extent(struct inod
 	ext4_fsblk_t block = ext4_ext_pblock(ext);
 	int len = ext4_ext_get_actual_len(ext);
 	ext4_lblk_t lblock = le32_to_cpu(ext->ee_block);
-	ext4_lblk_t last = lblock + len - 1;
 
-	if (len == 0 || lblock > last)
+	/*
+	 * We allow neither:
+	 *  - zero length
+	 *  - overflow/wrap-around
+	 */
+	if (lblock + len <= lblock)
 		return 0;
 	return ext4_data_block_valid(EXT4_SB(inode->i_sb), block, len);
 }
@@ -469,6 +473,10 @@ static int __ext4_ext_check(const char *
 		error_msg = "invalid extent entries";
 		goto corrupted;
 	}
+	if (unlikely(depth > 32)) {
+		error_msg = "too large eh_depth";
+		goto corrupted;
+	}
 	/* Verify checksum on non-root extent tree nodes */
 	if (ext_depth(inode) != depth &&
 	    !ext4_extent_block_csum_verify(inode, eh)) {
@@ -4685,10 +4693,6 @@ static int ext4_alloc_file_blocks(struct
 	if (len <= EXT_UNWRITTEN_MAX_LEN)
 		flags |= EXT4_GET_BLOCKS_NO_NORMALIZE;
 
-	/* Wait all existing dio workers, newcomers will block on i_mutex */
-	ext4_inode_block_unlocked_dio(inode);
-	inode_dio_wait(inode);
-
 	/*
 	 * credits to insert 1 extent into extent tree
 	 */
@@ -4742,6 +4746,7 @@ retry:
 						    EXT4_INODE_EOFBLOCKS);
 		}
 		ext4_mark_inode_dirty(handle, inode);
+		ext4_update_inode_fsync_trans(handle, inode, 1);
 		ret2 = ext4_journal_stop(handle);
 		if (ret2)
 			break;
@@ -4752,8 +4757,6 @@ retry:
 		goto retry;
 	}
 
-	ext4_inode_resume_unlocked_dio(inode);
-
 	return ret > 0 ? ret2 : ret;
 }
 
@@ -4770,7 +4773,6 @@ static long ext4_zero_range(struct file
 	int partial_begin, partial_end;
 	loff_t start, end;
 	ext4_lblk_t lblk;
-	struct address_space *mapping = inode->i_mapping;
 	unsigned int blkbits = inode->i_blkbits;
 
 	trace_ext4_zero_range(inode, offset, len, mode);
@@ -4786,17 +4788,6 @@ static long ext4_zero_range(struct file
 	}
 
 	/*
-	 * Write out all dirty pages to avoid race conditions
-	 * Then release them.
-	 */
-	if (mapping->nrpages && mapping_tagged(mapping, PAGECACHE_TAG_DIRTY)) {
-		ret = filemap_write_and_wait_range(mapping, offset,
-						   offset + len - 1);
-		if (ret)
-			return ret;
-	}
-
-	/*
 	 * Round up offset. This is not fallocate, we neet to zero out
 	 * blocks, so convert interior block aligned part of the range to
 	 * unwritten and possibly manually zero out unaligned parts of the
@@ -4828,7 +4819,8 @@ static long ext4_zero_range(struct file
 	}
 
 	if (!(mode & FALLOC_FL_KEEP_SIZE) &&
-	     offset + len > i_size_read(inode)) {
+	    (offset + len > i_size_read(inode) ||
+	     offset + len > EXT4_I(inode)->i_disksize)) {
 		new_size = offset + len;
 		ret = inode_newsize_ok(inode, new_size);
 		if (ret)
@@ -4839,6 +4831,10 @@ static long ext4_zero_range(struct file
 	if (mode & FALLOC_FL_KEEP_SIZE)
 		flags |= EXT4_GET_BLOCKS_KEEP_SIZE;
 
+	/* Wait all existing dio workers, newcomers will block on i_mutex */
+	ext4_inode_block_unlocked_dio(inode);
+	inode_dio_wait(inode);
+
 	/* Preallocate the range including the unaligned edges */
 	if (partial_begin || partial_end) {
 		ret = ext4_alloc_file_blocks(file,
@@ -4847,7 +4843,7 @@ static long ext4_zero_range(struct file
 				 round_down(offset, 1 << blkbits)) >> blkbits,
 				new_size, flags, mode);
 		if (ret)
-			goto out_mutex;
+			goto out_dio;
 
 	}
 
@@ -4856,16 +4852,23 @@ static long ext4_zero_range(struct file
 		flags |= (EXT4_GET_BLOCKS_CONVERT_UNWRITTEN |
 			  EXT4_EX_NOCACHE);
 
-		/* Now release the pages and zero block aligned part of pages*/
+		/*
+		 * Prevent page faults from reinstantiating pages we have
+		 * released from page cache.
+		 */
+		down_write(&EXT4_I(inode)->i_mmap_sem);
+		ret = ext4_update_disksize_before_punch(inode, offset, len);
+		if (ret) {
+			up_write(&EXT4_I(inode)->i_mmap_sem);
+			goto out_dio;
+		}
+		/* Now release the pages and zero block aligned part of pages */
 		truncate_pagecache_range(inode, start, end - 1);
 		inode->i_mtime = inode->i_ctime = ext4_current_time(inode);
 
-		/* Wait all existing dio workers, newcomers will block on i_mutex */
-		ext4_inode_block_unlocked_dio(inode);
-		inode_dio_wait(inode);
-
 		ret = ext4_alloc_file_blocks(file, lblk, max_blocks, new_size,
 					     flags, mode);
+		up_write(&EXT4_I(inode)->i_mmap_sem);
 		if (ret)
 			goto out_dio;
 	}
@@ -4901,6 +4904,8 @@ static long ext4_zero_range(struct file
 
 	/* Zero out partial block at the edges of the range */
 	ret = ext4_zero_partial_blocks(handle, inode, offset, len);
+	if (ret >= 0)
+		ext4_update_inode_fsync_trans(handle, inode, 1);
 
 	if (file->f_flags & O_SYNC)
 		ext4_handle_sync(handle);
@@ -4991,15 +4996,21 @@ long ext4_fallocate(struct file *file, i
 	}
 
 	if (!(mode & FALLOC_FL_KEEP_SIZE) &&
-	     offset + len > i_size_read(inode)) {
+	    (offset + len > i_size_read(inode) ||
+	     offset + len > EXT4_I(inode)->i_disksize)) {
 		new_size = offset + len;
 		ret = inode_newsize_ok(inode, new_size);
 		if (ret)
 			goto out;
 	}
 
+	/* Wait all existing dio workers, newcomers will block on i_mutex */
+	ext4_inode_block_unlocked_dio(inode);
+	inode_dio_wait(inode);
+
 	ret = ext4_alloc_file_blocks(file, lblk, max_blocks, new_size,
 				     flags, mode);
+	ext4_inode_resume_unlocked_dio(inode);
 	if (ret)
 		goto out;
 
@@ -5356,7 +5367,8 @@ ext4_ext_shift_extents(struct inode *ino
 	ext4_lblk_t stop, *iterator, ex_start, ex_end;
 
 	/* Let path point to the last extent */
-	path = ext4_find_extent(inode, EXT_MAX_BLOCKS - 1, NULL, 0);
+	path = ext4_find_extent(inode, EXT_MAX_BLOCKS - 1, NULL,
+				EXT4_EX_NOCACHE);
 	if (IS_ERR(path))
 		return PTR_ERR(path);
 
@@ -5365,15 +5377,15 @@ ext4_ext_shift_extents(struct inode *ino
 	if (!extent)
 		goto out;
 
-	stop = le32_to_cpu(extent->ee_block) +
-			ext4_ext_get_actual_len(extent);
+	stop = le32_to_cpu(extent->ee_block);
 
        /*
 	 * In case of left shift, Don't start shifting extents until we make
 	 * sure the hole is big enough to accommodate the shift.
 	*/
 	if (SHIFT == SHIFT_LEFT) {
-		path = ext4_find_extent(inode, start - 1, &path, 0);
+		path = ext4_find_extent(inode, start - 1, &path,
+					EXT4_EX_NOCACHE);
 		if (IS_ERR(path))
 			return PTR_ERR(path);
 		depth = path->p_depth;
@@ -5405,9 +5417,14 @@ ext4_ext_shift_extents(struct inode *ino
 	else
 		iterator = &stop;
 
-	/* Its safe to start updating extents */
-	while (start < stop) {
-		path = ext4_find_extent(inode, *iterator, &path, 0);
+	/*
+	 * Its safe to start updating extents.  Start and stop are unsigned, so
+	 * in case of right shift if extent with 0 block is reached, iterator
+	 * becomes NULL to indicate the end of the loop.
+	 */
+	while (iterator && start <= stop) {
+		path = ext4_find_extent(inode, *iterator, &path,
+					EXT4_EX_NOCACHE);
 		if (IS_ERR(path))
 			return PTR_ERR(path);
 		depth = path->p_depth;
@@ -5434,8 +5451,11 @@ ext4_ext_shift_extents(struct inode *ino
 					ext4_ext_get_actual_len(extent);
 		} else {
 			extent = EXT_FIRST_EXTENT(path[depth].p_hdr);
-			*iterator =  le32_to_cpu(extent->ee_block) > 0 ?
-				le32_to_cpu(extent->ee_block) - 1 : 0;
+			if (le32_to_cpu(extent->ee_block) > 0)
+				*iterator = le32_to_cpu(extent->ee_block) - 1;
+			else
+				/* Beginning is reached, end of the loop */
+				iterator = NULL;
 			/* Update path extent in case we need to stop */
 			while (le32_to_cpu(extent->ee_block) < start)
 				extent++;
@@ -5494,21 +5514,7 @@ int ext4_collapse_range(struct inode *in
 			return ret;
 	}
 
-	/*
-	 * Need to round down offset to be aligned with page size boundary
-	 * for page size > block size.
-	 */
-	ioffset = round_down(offset, PAGE_SIZE);
-
-	/* Write out all dirty pages */
-	ret = filemap_write_and_wait_range(inode->i_mapping, ioffset,
-					   LLONG_MAX);
-	if (ret)
-		return ret;
-
-	/* Take mutex lock */
 	mutex_lock(&inode->i_mutex);
-
 	/*
 	 * There is no need to overlap collapse range with EOF, in which case
 	 * it is effectively a truncate operation
@@ -5524,17 +5530,43 @@ int ext4_collapse_range(struct inode *in
 		goto out_mutex;
 	}
 
-	truncate_pagecache(inode, ioffset);
-
 	/* Wait for existing dio to complete */
 	ext4_inode_block_unlocked_dio(inode);
 	inode_dio_wait(inode);
 
+	/*
+	 * Prevent page faults from reinstantiating pages we have released from
+	 * page cache.
+	 */
+	down_write(&EXT4_I(inode)->i_mmap_sem);
+	/*
+	 * Need to round down offset to be aligned with page size boundary
+	 * for page size > block size.
+	 */
+	ioffset = round_down(offset, PAGE_SIZE);
+	/*
+	 * Write tail of the last page before removed range since it will get
+	 * removed from the page cache below.
+	 */
+	ret = filemap_write_and_wait_range(inode->i_mapping, ioffset, offset);
+	if (ret)
+		goto out_mmap;
+	/*
+	 * Write data that will be shifted to preserve them when discarding
+	 * page cache below. We are also protected from pages becoming dirty
+	 * by i_mmap_sem.
+	 */
+	ret = filemap_write_and_wait_range(inode->i_mapping, offset + len,
+					   LLONG_MAX);
+	if (ret)
+		goto out_mmap;
+	truncate_pagecache(inode, ioffset);
+
 	credits = ext4_writepage_trans_blocks(inode);
 	handle = ext4_journal_start(inode, EXT4_HT_TRUNCATE, credits);
 	if (IS_ERR(handle)) {
 		ret = PTR_ERR(handle);
-		goto out_dio;
+		goto out_mmap;
 	}
 
 	down_write(&EXT4_I(inode)->i_data_sem);
@@ -5570,10 +5602,12 @@ int ext4_collapse_range(struct inode *in
 		ext4_handle_sync(handle);
 	inode->i_mtime = inode->i_ctime = ext4_current_time(inode);
 	ext4_mark_inode_dirty(handle, inode);
+	ext4_update_inode_fsync_trans(handle, inode, 1);
 
 out_stop:
 	ext4_journal_stop(handle);
-out_dio:
+out_mmap:
+	up_write(&EXT4_I(inode)->i_mmap_sem);
 	ext4_inode_resume_unlocked_dio(inode);
 out_mutex:
 	mutex_unlock(&inode->i_mutex);
@@ -5627,21 +5661,7 @@ int ext4_insert_range(struct inode *inod
 			return ret;
 	}
 
-	/*
-	 * Need to round down to align start offset to page size boundary
-	 * for page size > block size.
-	 */
-	ioffset = round_down(offset, PAGE_SIZE);
-
-	/* Write out all dirty pages */
-	ret = filemap_write_and_wait_range(inode->i_mapping, ioffset,
-			LLONG_MAX);
-	if (ret)
-		return ret;
-
-	/* Take mutex lock */
 	mutex_lock(&inode->i_mutex);
-
 	/* Currently just for extent based files */
 	if (!ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS)) {
 		ret = -EOPNOTSUPP;
@@ -5660,17 +5680,32 @@ int ext4_insert_range(struct inode *inod
 		goto out_mutex;
 	}
 
-	truncate_pagecache(inode, ioffset);
-
 	/* Wait for existing dio to complete */
 	ext4_inode_block_unlocked_dio(inode);
 	inode_dio_wait(inode);
 
+	/*
+	 * Prevent page faults from reinstantiating pages we have released from
+	 * page cache.
+	 */
+	down_write(&EXT4_I(inode)->i_mmap_sem);
+	/*
+	 * Need to round down to align start offset to page size boundary
+	 * for page size > block size.
+	 */
+	ioffset = round_down(offset, PAGE_SIZE);
+	/* Write out all dirty pages */
+	ret = filemap_write_and_wait_range(inode->i_mapping, ioffset,
+			LLONG_MAX);
+	if (ret)
+		goto out_mmap;
+	truncate_pagecache(inode, ioffset);
+
 	credits = ext4_writepage_trans_blocks(inode);
 	handle = ext4_journal_start(inode, EXT4_HT_TRUNCATE, credits);
 	if (IS_ERR(handle)) {
 		ret = PTR_ERR(handle);
-		goto out_dio;
+		goto out_mmap;
 	}
 
 	/* Expand file to avoid data loss if there is error while shifting */
@@ -5718,6 +5753,9 @@ int ext4_insert_range(struct inode *inod
 			up_write(&EXT4_I(inode)->i_data_sem);
 			goto out_stop;
 		}
+	} else {
+		ext4_ext_drop_refs(path);
+		kfree(path);
 	}
 
 	ret = ext4_es_remove_extent(inode, offset_lblk,
@@ -5738,10 +5776,13 @@ int ext4_insert_range(struct inode *inod
 	up_write(&EXT4_I(inode)->i_data_sem);
 	if (IS_SYNC(inode))
 		ext4_handle_sync(handle);
+	if (ret >= 0)
+		ext4_update_inode_fsync_trans(handle, inode, 1);
 
 out_stop:
 	ext4_journal_stop(handle);
-out_dio:
+out_mmap:
+	up_write(&EXT4_I(inode)->i_mmap_sem);
 	ext4_inode_resume_unlocked_dio(inode);
 out_mutex:
 	mutex_unlock(&inode->i_mutex);
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ext4/file.c linux-libre-4.4.107-gnu/fs/ext4/file.c
--- linux-libre-4.4-gnu/fs/ext4/file.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/ext4/file.c	2017-12-20 04:05:01.000000000 -0500
@@ -209,15 +209,18 @@ static int ext4_dax_fault(struct vm_area
 {
 	int result;
 	handle_t *handle = NULL;
-	struct super_block *sb = file_inode(vma->vm_file)->i_sb;
+	struct inode *inode = file_inode(vma->vm_file);
+	struct super_block *sb = inode->i_sb;
 	bool write = vmf->flags & FAULT_FLAG_WRITE;
 
 	if (write) {
 		sb_start_pagefault(sb);
 		file_update_time(vma->vm_file);
+		down_read(&EXT4_I(inode)->i_mmap_sem);
 		handle = ext4_journal_start_sb(sb, EXT4_HT_WRITE_PAGE,
 						EXT4_DATA_TRANS_BLOCKS(sb));
-	}
+	} else
+		down_read(&EXT4_I(inode)->i_mmap_sem);
 
 	if (IS_ERR(handle))
 		result = VM_FAULT_SIGBUS;
@@ -228,8 +231,10 @@ static int ext4_dax_fault(struct vm_area
 	if (write) {
 		if (!IS_ERR(handle))
 			ext4_journal_stop(handle);
+		up_read(&EXT4_I(inode)->i_mmap_sem);
 		sb_end_pagefault(sb);
-	}
+	} else
+		up_read(&EXT4_I(inode)->i_mmap_sem);
 
 	return result;
 }
@@ -246,10 +251,12 @@ static int ext4_dax_pmd_fault(struct vm_
 	if (write) {
 		sb_start_pagefault(sb);
 		file_update_time(vma->vm_file);
+		down_read(&EXT4_I(inode)->i_mmap_sem);
 		handle = ext4_journal_start_sb(sb, EXT4_HT_WRITE_PAGE,
 				ext4_chunk_trans_blocks(inode,
 							PMD_SIZE / PAGE_SIZE));
-	}
+	} else
+		down_read(&EXT4_I(inode)->i_mmap_sem);
 
 	if (IS_ERR(handle))
 		result = VM_FAULT_SIGBUS;
@@ -260,30 +267,71 @@ static int ext4_dax_pmd_fault(struct vm_
 	if (write) {
 		if (!IS_ERR(handle))
 			ext4_journal_stop(handle);
+		up_read(&EXT4_I(inode)->i_mmap_sem);
 		sb_end_pagefault(sb);
-	}
+	} else
+		up_read(&EXT4_I(inode)->i_mmap_sem);
 
 	return result;
 }
 
 static int ext4_dax_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf)
 {
-	return dax_mkwrite(vma, vmf, ext4_get_block_dax,
-				ext4_end_io_unwritten);
+	int err;
+	struct inode *inode = file_inode(vma->vm_file);
+
+	sb_start_pagefault(inode->i_sb);
+	file_update_time(vma->vm_file);
+	down_read(&EXT4_I(inode)->i_mmap_sem);
+	err = __dax_mkwrite(vma, vmf, ext4_get_block_dax,
+			    ext4_end_io_unwritten);
+	up_read(&EXT4_I(inode)->i_mmap_sem);
+	sb_end_pagefault(inode->i_sb);
+
+	return err;
+}
+
+/*
+ * Handle write fault for VM_MIXEDMAP mappings. Similarly to ext4_dax_mkwrite()
+ * handler we check for races agaist truncate. Note that since we cycle through
+ * i_mmap_sem, we are sure that also any hole punching that began before we
+ * were called is finished by now and so if it included part of the file we
+ * are working on, our pte will get unmapped and the check for pte_same() in
+ * wp_pfn_shared() fails. Thus fault gets retried and things work out as
+ * desired.
+ */
+static int ext4_dax_pfn_mkwrite(struct vm_area_struct *vma,
+				struct vm_fault *vmf)
+{
+	struct inode *inode = file_inode(vma->vm_file);
+	struct super_block *sb = inode->i_sb;
+	int ret = VM_FAULT_NOPAGE;
+	loff_t size;
+
+	sb_start_pagefault(sb);
+	file_update_time(vma->vm_file);
+	down_read(&EXT4_I(inode)->i_mmap_sem);
+	size = (i_size_read(inode) + PAGE_SIZE - 1) >> PAGE_SHIFT;
+	if (vmf->pgoff >= size)
+		ret = VM_FAULT_SIGBUS;
+	up_read(&EXT4_I(inode)->i_mmap_sem);
+	sb_end_pagefault(sb);
+
+	return ret;
 }
 
 static const struct vm_operations_struct ext4_dax_vm_ops = {
 	.fault		= ext4_dax_fault,
 	.pmd_fault	= ext4_dax_pmd_fault,
 	.page_mkwrite	= ext4_dax_mkwrite,
-	.pfn_mkwrite	= dax_pfn_mkwrite,
+	.pfn_mkwrite	= ext4_dax_pfn_mkwrite,
 };
 #else
 #define ext4_dax_vm_ops	ext4_file_vm_ops
 #endif
 
 static const struct vm_operations_struct ext4_file_vm_ops = {
-	.fault		= filemap_fault,
+	.fault		= ext4_filemap_fault,
 	.map_pages	= filemap_map_pages,
 	.page_mkwrite   = ext4_page_mkwrite,
 };
@@ -415,47 +463,27 @@ static int ext4_find_unwritten_pgoff(str
 		num = min_t(pgoff_t, end - index, PAGEVEC_SIZE);
 		nr_pages = pagevec_lookup(&pvec, inode->i_mapping, index,
 					  (pgoff_t)num);
-		if (nr_pages == 0) {
-			if (whence == SEEK_DATA)
-				break;
-
-			BUG_ON(whence != SEEK_HOLE);
-			/*
-			 * If this is the first time to go into the loop and
-			 * offset is not beyond the end offset, it will be a
-			 * hole at this offset
-			 */
-			if (lastoff == startoff || lastoff < endoff)
-				found = 1;
-			break;
-		}
-
-		/*
-		 * If this is the first time to go into the loop and
-		 * offset is smaller than the first page offset, it will be a
-		 * hole at this offset.
-		 */
-		if (lastoff == startoff && whence == SEEK_HOLE &&
-		    lastoff < page_offset(pvec.pages[0])) {
-			found = 1;
+		if (nr_pages == 0)
 			break;
-		}
 
 		for (i = 0; i < nr_pages; i++) {
 			struct page *page = pvec.pages[i];
 			struct buffer_head *bh, *head;
 
 			/*
-			 * If the current offset is not beyond the end of given
-			 * range, it will be a hole.
+			 * If current offset is smaller than the page offset,
+			 * there is a hole at this offset.
 			 */
-			if (lastoff < endoff && whence == SEEK_HOLE &&
-			    page->index > end) {
+			if (whence == SEEK_HOLE && lastoff < endoff &&
+			    lastoff < page_offset(pvec.pages[i])) {
 				found = 1;
 				*offset = lastoff;
 				goto out;
 			}
 
+			if (page->index > end)
+				goto out;
+
 			lock_page(page);
 
 			if (unlikely(page->mapping != inode->i_mapping)) {
@@ -472,6 +500,8 @@ static int ext4_find_unwritten_pgoff(str
 				lastoff = page_offset(page);
 				bh = head = page_buffers(page);
 				do {
+					if (lastoff + bh->b_size <= startoff)
+						goto next;
 					if (buffer_uptodate(bh) ||
 					    buffer_unwritten(bh)) {
 						if (whence == SEEK_DATA)
@@ -486,6 +516,7 @@ static int ext4_find_unwritten_pgoff(str
 						unlock_page(page);
 						goto out;
 					}
+next:
 					lastoff += bh->b_size;
 					bh = bh->b_this_page;
 				} while (bh != head);
@@ -495,20 +526,18 @@ static int ext4_find_unwritten_pgoff(str
 			unlock_page(page);
 		}
 
-		/*
-		 * The no. of pages is less than our desired, that would be a
-		 * hole in there.
-		 */
-		if (nr_pages < num && whence == SEEK_HOLE) {
-			found = 1;
-			*offset = lastoff;
+		/* The no. of pages is less than our desired, we are done. */
+		if (nr_pages < num)
 			break;
-		}
 
 		index = pvec.pages[i - 1]->index + 1;
 		pagevec_release(&pvec);
 	} while (index <= end);
 
+	if (whence == SEEK_HOLE && lastoff < endoff) {
+		found = 1;
+		*offset = lastoff;
+	}
 out:
 	pagevec_release(&pvec);
 	return found;
@@ -530,7 +559,7 @@ static loff_t ext4_seek_data(struct file
 	mutex_lock(&inode->i_mutex);
 
 	isize = i_size_read(inode);
-	if (offset >= isize) {
+	if (offset < 0 || offset >= isize) {
 		mutex_unlock(&inode->i_mutex);
 		return -ENXIO;
 	}
@@ -603,7 +632,7 @@ static loff_t ext4_seek_hole(struct file
 	mutex_lock(&inode->i_mutex);
 
 	isize = i_size_read(inode);
-	if (offset >= isize) {
+	if (offset < 0 || offset >= isize) {
 		mutex_unlock(&inode->i_mutex);
 		return -ENXIO;
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ext4/ialloc.c linux-libre-4.4.107-gnu/fs/ext4/ialloc.c
--- linux-libre-4.4-gnu/fs/ext4/ialloc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/ext4/ialloc.c	2017-12-20 04:05:01.000000000 -0500
@@ -76,7 +76,6 @@ static int ext4_init_inode_bitmap(struct
 	/* If checksum is bad mark all blocks and inodes use to prevent
 	 * allocation, essentially implementing a per-group read-only flag. */
 	if (!ext4_group_desc_csum_verify(sb, block_group, gdp)) {
-		ext4_error(sb, "Checksum bad for group %u", block_group);
 		grp = ext4_get_group_info(sb, block_group);
 		if (!EXT4_MB_GRP_BBITMAP_CORRUPT(grp))
 			percpu_counter_sub(&sbi->s_freeclusters_counter,
@@ -191,8 +190,11 @@ ext4_read_inode_bitmap(struct super_bloc
 		set_buffer_verified(bh);
 		ext4_unlock_group(sb, block_group);
 		unlock_buffer(bh);
-		if (err)
+		if (err) {
+			ext4_error(sb, "Failed to init inode bitmap for group "
+				   "%u: %d", block_group, err);
 			goto out;
+		}
 		return bh;
 	}
 	ext4_unlock_group(sb, block_group);
@@ -1141,25 +1143,20 @@ struct inode *ext4_orphan_get(struct sup
 	unsigned long max_ino = le32_to_cpu(EXT4_SB(sb)->s_es->s_inodes_count);
 	ext4_group_t block_group;
 	int bit;
-	struct buffer_head *bitmap_bh;
+	struct buffer_head *bitmap_bh = NULL;
 	struct inode *inode = NULL;
-	long err = -EIO;
+	int err = -EFSCORRUPTED;
 
-	/* Error cases - e2fsck has already cleaned up for us */
-	if (ino > max_ino) {
-		ext4_warning(sb, "bad orphan ino %lu!  e2fsck was run?", ino);
-		err = -EFSCORRUPTED;
-		goto error;
-	}
+	if (ino < EXT4_FIRST_INO(sb) || ino > max_ino)
+		goto bad_orphan;
 
 	block_group = (ino - 1) / EXT4_INODES_PER_GROUP(sb);
 	bit = (ino - 1) % EXT4_INODES_PER_GROUP(sb);
 	bitmap_bh = ext4_read_inode_bitmap(sb, block_group);
 	if (IS_ERR(bitmap_bh)) {
-		err = PTR_ERR(bitmap_bh);
-		ext4_warning(sb, "inode bitmap error %ld for orphan %lu",
-			     ino, err);
-		goto error;
+		ext4_error(sb, "inode bitmap error %ld for orphan %lu",
+			   ino, PTR_ERR(bitmap_bh));
+		return (struct inode *) bitmap_bh;
 	}
 
 	/* Having the inode bit set should be a 100% indicator that this
@@ -1170,15 +1167,21 @@ struct inode *ext4_orphan_get(struct sup
 		goto bad_orphan;
 
 	inode = ext4_iget(sb, ino);
-	if (IS_ERR(inode))
-		goto iget_failed;
+	if (IS_ERR(inode)) {
+		err = PTR_ERR(inode);
+		ext4_error(sb, "couldn't read orphan inode %lu (err %d)",
+			   ino, err);
+		return inode;
+	}
 
 	/*
-	 * If the orphans has i_nlinks > 0 then it should be able to be
-	 * truncated, otherwise it won't be removed from the orphan list
-	 * during processing and an infinite loop will result.
+	 * If the orphans has i_nlinks > 0 then it should be able to
+	 * be truncated, otherwise it won't be removed from the orphan
+	 * list during processing and an infinite loop will result.
+	 * Similarly, it must not be a bad inode.
 	 */
-	if (inode->i_nlink && !ext4_can_truncate(inode))
+	if ((inode->i_nlink && !ext4_can_truncate(inode)) ||
+	    is_bad_inode(inode))
 		goto bad_orphan;
 
 	if (NEXT_ORPHAN(inode) > max_ino)
@@ -1186,29 +1189,25 @@ struct inode *ext4_orphan_get(struct sup
 	brelse(bitmap_bh);
 	return inode;
 
-iget_failed:
-	err = PTR_ERR(inode);
-	inode = NULL;
 bad_orphan:
-	ext4_warning(sb, "bad orphan inode %lu!  e2fsck was run?", ino);
-	printk(KERN_WARNING "ext4_test_bit(bit=%d, block=%llu) = %d\n",
-	       bit, (unsigned long long)bitmap_bh->b_blocknr,
-	       ext4_test_bit(bit, bitmap_bh->b_data));
-	printk(KERN_WARNING "inode=%p\n", inode);
+	ext4_error(sb, "bad orphan inode %lu", ino);
+	if (bitmap_bh)
+		printk(KERN_ERR "ext4_test_bit(bit=%d, block=%llu) = %d\n",
+		       bit, (unsigned long long)bitmap_bh->b_blocknr,
+		       ext4_test_bit(bit, bitmap_bh->b_data));
 	if (inode) {
-		printk(KERN_WARNING "is_bad_inode(inode)=%d\n",
+		printk(KERN_ERR "is_bad_inode(inode)=%d\n",
 		       is_bad_inode(inode));
-		printk(KERN_WARNING "NEXT_ORPHAN(inode)=%u\n",
+		printk(KERN_ERR "NEXT_ORPHAN(inode)=%u\n",
 		       NEXT_ORPHAN(inode));
-		printk(KERN_WARNING "max_ino=%lu\n", max_ino);
-		printk(KERN_WARNING "i_nlink=%u\n", inode->i_nlink);
+		printk(KERN_ERR "max_ino=%lu\n", max_ino);
+		printk(KERN_ERR "i_nlink=%u\n", inode->i_nlink);
 		/* Avoid freeing blocks if we got a bad deleted inode */
 		if (inode->i_nlink == 0)
 			inode->i_blocks = 0;
 		iput(inode);
 	}
 	brelse(bitmap_bh);
-error:
 	return ERR_PTR(err);
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ext4/inline.c linux-libre-4.4.107-gnu/fs/ext4/inline.c
--- linux-libre-4.4-gnu/fs/ext4/inline.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/ext4/inline.c	2017-12-20 04:05:01.000000000 -0500
@@ -336,8 +336,10 @@ static int ext4_update_inline_data(handl
 
 	len -= EXT4_MIN_INLINE_DATA_SIZE;
 	value = kzalloc(len, GFP_NOFS);
-	if (!value)
+	if (!value) {
+		error = -ENOMEM;
 		goto out;
+	}
 
 	error = ext4_xattr_ibody_get(inode, i.name_index, i.name,
 				     value, len);
@@ -931,8 +933,15 @@ int ext4_da_write_inline_data_end(struct
 				  struct page *page)
 {
 	int i_size_changed = 0;
+	int ret;
 
-	copied = ext4_write_inline_data_end(inode, pos, len, copied, page);
+	ret = ext4_write_inline_data_end(inode, pos, len, copied, page);
+	if (ret < 0) {
+		unlock_page(page);
+		put_page(page);
+		return ret;
+	}
+	copied = ret;
 
 	/*
 	 * No need to use i_size_read() here, the i_size
@@ -1149,10 +1158,9 @@ static int ext4_finish_convert_inline_di
 	set_buffer_uptodate(dir_block);
 	err = ext4_handle_dirty_dirent_node(handle, inode, dir_block);
 	if (err)
-		goto out;
+		return err;
 	set_buffer_verified(dir_block);
-out:
-	return err;
+	return ext4_mark_inode_dirty(handle, inode);
 }
 
 static int ext4_convert_inline_data_nolock(handle_t *handle,
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ext4/inode.c linux-libre-4.4.107-gnu/fs/ext4/inode.c
--- linux-libre-4.4-gnu/fs/ext4/inode.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/ext4/inode.c	2017-12-20 04:05:01.000000000 -0500
@@ -51,25 +51,30 @@ static __u32 ext4_inode_csum(struct inod
 			      struct ext4_inode_info *ei)
 {
 	struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb);
-	__u16 csum_lo;
-	__u16 csum_hi = 0;
 	__u32 csum;
+	__u16 dummy_csum = 0;
+	int offset = offsetof(struct ext4_inode, i_checksum_lo);
+	unsigned int csum_size = sizeof(dummy_csum);
 
-	csum_lo = le16_to_cpu(raw->i_checksum_lo);
-	raw->i_checksum_lo = 0;
-	if (EXT4_INODE_SIZE(inode->i_sb) > EXT4_GOOD_OLD_INODE_SIZE &&
-	    EXT4_FITS_IN_INODE(raw, ei, i_checksum_hi)) {
-		csum_hi = le16_to_cpu(raw->i_checksum_hi);
-		raw->i_checksum_hi = 0;
-	}
-
-	csum = ext4_chksum(sbi, ei->i_csum_seed, (__u8 *)raw,
-			   EXT4_INODE_SIZE(inode->i_sb));
+	csum = ext4_chksum(sbi, ei->i_csum_seed, (__u8 *)raw, offset);
+	csum = ext4_chksum(sbi, csum, (__u8 *)&dummy_csum, csum_size);
+	offset += csum_size;
+	csum = ext4_chksum(sbi, csum, (__u8 *)raw + offset,
+			   EXT4_GOOD_OLD_INODE_SIZE - offset);
 
-	raw->i_checksum_lo = cpu_to_le16(csum_lo);
-	if (EXT4_INODE_SIZE(inode->i_sb) > EXT4_GOOD_OLD_INODE_SIZE &&
-	    EXT4_FITS_IN_INODE(raw, ei, i_checksum_hi))
-		raw->i_checksum_hi = cpu_to_le16(csum_hi);
+	if (EXT4_INODE_SIZE(inode->i_sb) > EXT4_GOOD_OLD_INODE_SIZE) {
+		offset = offsetof(struct ext4_inode, i_checksum_hi);
+		csum = ext4_chksum(sbi, csum, (__u8 *)raw +
+				   EXT4_GOOD_OLD_INODE_SIZE,
+				   offset - EXT4_GOOD_OLD_INODE_SIZE);
+		if (EXT4_FITS_IN_INODE(raw, ei, i_checksum_hi)) {
+			csum = ext4_chksum(sbi, csum, (__u8 *)&dummy_csum,
+					   csum_size);
+			offset += csum_size;
+		}
+		csum = ext4_chksum(sbi, csum, (__u8 *)raw + offset,
+				   EXT4_INODE_SIZE(inode->i_sb) - offset);
+	}
 
 	return csum;
 }
@@ -205,9 +210,9 @@ void ext4_evict_inode(struct inode *inod
 		 * Note that directories do not have this problem because they
 		 * don't use page cache.
 		 */
-		if (ext4_should_journal_data(inode) &&
-		    (S_ISLNK(inode->i_mode) || S_ISREG(inode->i_mode)) &&
-		    inode->i_ino != EXT4_JOURNAL_INO) {
+		if (inode->i_ino != EXT4_JOURNAL_INO &&
+		    ext4_should_journal_data(inode) &&
+		    (S_ISLNK(inode->i_mode) || S_ISREG(inode->i_mode))) {
 			journal_t *journal = EXT4_SB(inode->i_sb)->s_journal;
 			tid_t commit_tid = EXT4_I(inode)->i_datasync_tid;
 
@@ -653,10 +658,52 @@ has_zeroout:
 		ret = check_block_validity(inode, map);
 		if (ret != 0)
 			return ret;
+
+		/*
+		 * Inodes with freshly allocated blocks where contents will be
+		 * visible after transaction commit must be on transaction's
+		 * ordered data list.
+		 */
+		if (map->m_flags & EXT4_MAP_NEW &&
+		    !(map->m_flags & EXT4_MAP_UNWRITTEN) &&
+		    !IS_NOQUOTA(inode) &&
+		    ext4_should_order_data(inode)) {
+			ret = ext4_jbd2_file_inode(handle, inode);
+			if (ret)
+				return ret;
+		}
 	}
 	return retval;
 }
 
+/*
+ * Update EXT4_MAP_FLAGS in bh->b_state. For buffer heads attached to pages
+ * we have to be careful as someone else may be manipulating b_state as well.
+ */
+static void ext4_update_bh_state(struct buffer_head *bh, unsigned long flags)
+{
+	unsigned long old_state;
+	unsigned long new_state;
+
+	flags &= EXT4_MAP_FLAGS;
+
+	/* Dummy buffer_head? Set non-atomically. */
+	if (!bh->b_page) {
+		bh->b_state = (bh->b_state & ~EXT4_MAP_FLAGS) | flags;
+		return;
+	}
+	/*
+	 * Someone else may be modifying b_state. Be careful! This is ugly but
+	 * once we get rid of using bh as a container for mapping information
+	 * to pass to / from get_block functions, this can go away.
+	 */
+	do {
+		old_state = READ_ONCE(bh->b_state);
+		new_state = (old_state & ~EXT4_MAP_FLAGS) | flags;
+	} while (unlikely(
+		 cmpxchg(&bh->b_state, old_state, new_state) != old_state));
+}
+
 /* Maximum number of blocks we map for direct IO at once. */
 #define DIO_MAX_BLOCKS 4096
 
@@ -693,7 +740,7 @@ static int _ext4_get_block(struct inode
 		ext4_io_end_t *io_end = ext4_inode_aio(inode);
 
 		map_bh(bh, inode->i_sb, map.m_pblk);
-		bh->b_state = (bh->b_state & ~EXT4_MAP_FLAGS) | map.m_flags;
+		ext4_update_bh_state(bh, map.m_flags);
 		if (IS_DAX(inode) && buffer_unwritten(bh)) {
 			/*
 			 * dgc: I suspect unwritten conversion on ext4+DAX is
@@ -1119,20 +1166,14 @@ static int ext4_write_end(struct file *f
 	int i_size_changed = 0;
 
 	trace_ext4_write_end(inode, pos, len, copied);
-	if (ext4_test_inode_state(inode, EXT4_STATE_ORDERED_MODE)) {
-		ret = ext4_jbd2_file_inode(handle, inode);
-		if (ret) {
-			unlock_page(page);
-			page_cache_release(page);
-			goto errout;
-		}
-	}
-
 	if (ext4_has_inline_data(inode)) {
 		ret = ext4_write_inline_data_end(inode, pos, len,
 						 copied, page);
-		if (ret < 0)
+		if (ret < 0) {
+			unlock_page(page);
+			put_page(page);
 			goto errout;
+		}
 		copied = ret;
 	} else
 		copied = block_write_end(file, mapping, pos,
@@ -1186,7 +1227,9 @@ errout:
  * set the buffer to be dirty, since in data=journalled mode we need
  * to call ext4_handle_dirty_metadata() instead.
  */
-static void zero_new_buffers(struct page *page, unsigned from, unsigned to)
+static void ext4_journalled_zero_new_buffers(handle_t *handle,
+					    struct page *page,
+					    unsigned from, unsigned to)
 {
 	unsigned int block_start = 0, block_end;
 	struct buffer_head *head, *bh;
@@ -1203,7 +1246,7 @@ static void zero_new_buffers(struct page
 					size = min(to, block_end) - start;
 
 					zero_user(page, start, size);
-					set_buffer_uptodate(bh);
+					write_end_fn(handle, bh);
 				}
 				clear_buffer_new(bh);
 			}
@@ -1232,18 +1275,25 @@ static int ext4_journalled_write_end(str
 
 	BUG_ON(!ext4_handle_valid(handle));
 
-	if (ext4_has_inline_data(inode))
-		copied = ext4_write_inline_data_end(inode, pos, len,
-						    copied, page);
-	else {
-		if (copied < len) {
-			if (!PageUptodate(page))
-				copied = 0;
-			zero_new_buffers(page, from+copied, to);
+	if (ext4_has_inline_data(inode)) {
+		ret = ext4_write_inline_data_end(inode, pos, len,
+						 copied, page);
+		if (ret < 0) {
+			unlock_page(page);
+			put_page(page);
+			goto errout;
 		}
-
+		copied = ret;
+	} else if (unlikely(copied < len) && !PageUptodate(page)) {
+		copied = 0;
+		ext4_journalled_zero_new_buffers(handle, page, from, to);
+	} else {
+		if (unlikely(copied < len))
+			ext4_journalled_zero_new_buffers(handle, page,
+							 from + copied, to);
 		ret = ext4_walk_page_buffers(handle, page_buffers(page), from,
-					     to, &partial, write_end_fn);
+					     from + copied, &partial,
+					     write_end_fn);
 		if (!partial)
 			SetPageUptodate(page);
 	}
@@ -1269,6 +1319,7 @@ static int ext4_journalled_write_end(str
 		 */
 		ext4_orphan_add(handle, inode);
 
+errout:
 	ret2 = ext4_journal_stop(handle);
 	if (!ret)
 		ret = ret2;
@@ -1669,7 +1720,7 @@ int ext4_da_get_block_prep(struct inode
 		return ret;
 
 	map_bh(bh, inode->i_sb, map.m_pblk);
-	bh->b_state = (bh->b_state & ~EXT4_MAP_FLAGS) | map.m_flags;
+	ext4_update_bh_state(bh, map.m_flags);
 
 	if (buffer_unwritten(bh)) {
 		/* A delayed write to unwritten bh should be marked
@@ -1900,15 +1951,29 @@ static int ext4_writepage(struct page *p
 static int mpage_submit_page(struct mpage_da_data *mpd, struct page *page)
 {
 	int len;
-	loff_t size = i_size_read(mpd->inode);
+	loff_t size;
 	int err;
 
 	BUG_ON(page->index != mpd->first_page);
-	if (page->index == size >> PAGE_CACHE_SHIFT)
-		len = size & ~PAGE_CACHE_MASK;
-	else
-		len = PAGE_CACHE_SIZE;
 	clear_page_dirty_for_io(page);
+	/*
+	 * We have to be very careful here!  Nothing protects writeback path
+	 * against i_size changes and the page can be writeably mapped into
+	 * page tables. So an application can be growing i_size and writing
+	 * data through mmap while writeback runs. clear_page_dirty_for_io()
+	 * write-protects our page in page tables and the page cannot get
+	 * written to again until we release page lock. So only after
+	 * clear_page_dirty_for_io() we are safe to sample i_size for
+	 * ext4_bio_write_page() to zero-out tail of the written page. We rely
+	 * on the barrier provided by TestClearPageDirty in
+	 * clear_page_dirty_for_io() to make sure i_size is really sampled only
+	 * after page tables are updated.
+	 */
+	size = i_size_read(mpd->inode);
+	if (page->index == size >> PAGE_SHIFT)
+		len = size & ~PAGE_MASK;
+	else
+		len = PAGE_SIZE;
 	err = ext4_bio_write_page(&mpd->io_submit, page, len, mpd->wbc, false);
 	if (!err)
 		mpd->wbc->nr_to_write--;
@@ -1998,7 +2063,7 @@ static int mpage_process_page_bufs(struc
 {
 	struct inode *inode = mpd->inode;
 	int err;
-	ext4_lblk_t blocks = (i_size_read(inode) + (1 << inode->i_blkbits) - 1)
+	ext4_lblk_t blocks = (i_size_read(inode) + i_blocksize(inode) - 1)
 							>> inode->i_blkbits;
 
 	do {
@@ -2561,13 +2626,36 @@ retry:
 				done = true;
 			}
 		}
-		ext4_journal_stop(handle);
+		/*
+		 * Caution: If the handle is synchronous,
+		 * ext4_journal_stop() can wait for transaction commit
+		 * to finish which may depend on writeback of pages to
+		 * complete or on page lock to be released.  In that
+		 * case, we have to wait until after after we have
+		 * submitted all the IO, released page locks we hold,
+		 * and dropped io_end reference (for extent conversion
+		 * to be able to complete) before stopping the handle.
+		 */
+		if (!ext4_handle_valid(handle) || handle->h_sync == 0) {
+			ext4_journal_stop(handle);
+			handle = NULL;
+		}
 		/* Submit prepared bio */
 		ext4_io_submit(&mpd.io_submit);
 		/* Unlock pages we didn't use */
 		mpage_release_unused_pages(&mpd, give_up_on_write);
-		/* Drop our io_end reference we got from init */
-		ext4_put_io_end(mpd.io_submit.io_end);
+		/*
+		 * Drop our io_end reference we got from init. We have
+		 * to be careful and use deferred io_end finishing if
+		 * we are still holding the transaction as we can
+		 * release the last reference to io_end which may end
+		 * up doing unwritten extent conversion.
+		 */
+		if (handle) {
+			ext4_put_io_end_defer(mpd.io_submit.io_end);
+			ext4_journal_stop(handle);
+		} else
+			ext4_put_io_end(mpd.io_submit.io_end);
 
 		if (ret == -ENOSPC && sbi->s_journal) {
 			/*
@@ -3503,6 +3591,10 @@ static int ext4_block_truncate_page(hand
 	unsigned blocksize;
 	struct inode *inode = mapping->host;
 
+	/* If we are processing an encrypted inode during orphan list handling */
+	if (ext4_encrypted_inode(inode) && !ext4_has_encryption_key(inode))
+		return 0;
+
 	blocksize = inode->i_sb->s_blocksize;
 	length = blocksize - (offset & (blocksize - 1));
 
@@ -3559,7 +3651,36 @@ int ext4_can_truncate(struct inode *inod
 }
 
 /*
- * ext4_punch_hole: punches a hole in a file by releaseing the blocks
+ * We have to make sure i_disksize gets properly updated before we truncate
+ * page cache due to hole punching or zero range. Otherwise i_disksize update
+ * can get lost as it may have been postponed to submission of writeback but
+ * that will never happen after we truncate page cache.
+ */
+int ext4_update_disksize_before_punch(struct inode *inode, loff_t offset,
+				      loff_t len)
+{
+	handle_t *handle;
+	loff_t size = i_size_read(inode);
+
+	WARN_ON(!mutex_is_locked(&inode->i_mutex));
+	if (offset > size || offset + len < size)
+		return 0;
+
+	if (EXT4_I(inode)->i_disksize >= size)
+		return 0;
+
+	handle = ext4_journal_start(inode, EXT4_HT_MISC, 1);
+	if (IS_ERR(handle))
+		return PTR_ERR(handle);
+	ext4_update_i_disksize(inode, size);
+	ext4_mark_inode_dirty(handle, inode);
+	ext4_journal_stop(handle);
+
+	return 0;
+}
+
+/*
+ * ext4_punch_hole: punches a hole in a file by releasing the blocks
  * associated with the given offset and length
  *
  * @inode:  File inode
@@ -3588,7 +3709,7 @@ int ext4_punch_hole(struct inode *inode,
 	 * Write out all dirty pages to avoid race conditions
 	 * Then release them.
 	 */
-	if (mapping->nrpages && mapping_tagged(mapping, PAGECACHE_TAG_DIRTY)) {
+	if (mapping_tagged(mapping, PAGECACHE_TAG_DIRTY)) {
 		ret = filemap_write_and_wait_range(mapping, offset,
 						   offset + length - 1);
 		if (ret)
@@ -3623,17 +3744,26 @@ int ext4_punch_hole(struct inode *inode,
 
 	}
 
+	/* Wait all existing dio workers, newcomers will block on i_mutex */
+	ext4_inode_block_unlocked_dio(inode);
+	inode_dio_wait(inode);
+
+	/*
+	 * Prevent page faults from reinstantiating pages we have released from
+	 * page cache.
+	 */
+	down_write(&EXT4_I(inode)->i_mmap_sem);
 	first_block_offset = round_up(offset, sb->s_blocksize);
 	last_block_offset = round_down((offset + length), sb->s_blocksize) - 1;
 
 	/* Now release the pages and zero block aligned part of pages*/
-	if (last_block_offset > first_block_offset)
+	if (last_block_offset > first_block_offset) {
+		ret = ext4_update_disksize_before_punch(inode, offset, length);
+		if (ret)
+			goto out_dio;
 		truncate_pagecache_range(inode, first_block_offset,
 					 last_block_offset);
-
-	/* Wait all existing dio workers, newcomers will block on i_mutex */
-	ext4_inode_block_unlocked_dio(inode);
-	inode_dio_wait(inode);
+	}
 
 	if (ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS))
 		credits = ext4_writepage_trans_blocks(inode);
@@ -3680,16 +3810,14 @@ int ext4_punch_hole(struct inode *inode,
 	if (IS_SYNC(inode))
 		ext4_handle_sync(handle);
 
-	/* Now release the pages again to reduce race window */
-	if (last_block_offset > first_block_offset)
-		truncate_pagecache_range(inode, first_block_offset,
-					 last_block_offset);
-
 	inode->i_mtime = inode->i_ctime = ext4_current_time(inode);
 	ext4_mark_inode_dirty(handle, inode);
+	if (ret >= 0)
+		ext4_update_inode_fsync_trans(handle, inode, 1);
 out_stop:
 	ext4_journal_stop(handle);
 out_dio:
+	up_write(&EXT4_I(inode)->i_mmap_sem);
 	ext4_inode_resume_unlocked_dio(inode);
 out_mutex:
 	mutex_unlock(&inode->i_mutex);
@@ -4084,6 +4212,7 @@ struct inode *ext4_iget(struct super_blo
 	struct inode *inode;
 	journal_t *journal = EXT4_SB(sb)->s_journal;
 	long ret;
+	loff_t size;
 	int block;
 	uid_t i_uid;
 	gid_t i_gid;
@@ -4175,6 +4304,11 @@ struct inode *ext4_iget(struct super_blo
 		ei->i_file_acl |=
 			((__u64)le16_to_cpu(raw_inode->i_file_acl_high)) << 32;
 	inode->i_size = ext4_isize(raw_inode);
+	if ((size = i_size_read(inode)) < 0) {
+		EXT4_ERROR_INODE(inode, "bad i_size value: %lld", size);
+		ret = -EFSCORRUPTED;
+		goto bad_inode;
+	}
 	ei->i_disksize = inode->i_size;
 #ifdef CONFIG_QUOTA
 	ei->i_reserved_quota = 0;
@@ -4458,14 +4592,14 @@ static int ext4_do_update_inode(handle_t
  * Fix up interoperability with old kernels. Otherwise, old inodes get
  * re-used with the upper 16 bits of the uid/gid intact
  */
-		if (!ei->i_dtime) {
+		if (ei->i_dtime && list_empty(&ei->i_orphan)) {
+			raw_inode->i_uid_high = 0;
+			raw_inode->i_gid_high = 0;
+		} else {
 			raw_inode->i_uid_high =
 				cpu_to_le16(high_16_bits(i_uid));
 			raw_inode->i_gid_high =
 				cpu_to_le16(high_16_bits(i_gid));
-		} else {
-			raw_inode->i_uid_high = 0;
-			raw_inode->i_gid_high = 0;
 		}
 	} else {
 		raw_inode->i_uid_low = cpu_to_le16(fs_high2lowuid(i_uid));
@@ -4823,6 +4957,7 @@ int ext4_setattr(struct dentry *dentry,
 			} else
 				ext4_wait_for_tail_page_commit(inode);
 		}
+		down_write(&EXT4_I(inode)->i_mmap_sem);
 		/*
 		 * Truncate pagecache after we've waited for commit
 		 * in data=journal mode to make pages freeable.
@@ -4830,6 +4965,7 @@ int ext4_setattr(struct dentry *dentry,
 		truncate_pagecache(inode, inode->i_size);
 		if (shrink)
 			ext4_truncate(inode);
+		up_write(&EXT4_I(inode)->i_mmap_sem);
 	}
 
 	if (!rc) {
@@ -5047,8 +5183,9 @@ static int ext4_expand_extra_isize(struc
 	/* No extended attributes present */
 	if (!ext4_test_inode_state(inode, EXT4_STATE_XATTR) ||
 	    header->h_magic != cpu_to_le32(EXT4_XATTR_MAGIC)) {
-		memset((void *)raw_inode + EXT4_GOOD_OLD_INODE_SIZE, 0,
-			new_extra_isize);
+		memset((void *)raw_inode + EXT4_GOOD_OLD_INODE_SIZE +
+		       EXT4_I(inode)->i_extra_isize, 0,
+		       new_extra_isize - EXT4_I(inode)->i_extra_isize);
 		EXT4_I(inode)->i_extra_isize = new_extra_isize;
 		return 0;
 	}
@@ -5081,6 +5218,8 @@ int ext4_mark_inode_dirty(handle_t *hand
 	might_sleep();
 	trace_ext4_mark_inode_dirty(inode, _RET_IP_);
 	err = ext4_reserve_inode_write(handle, inode, &iloc);
+	if (err)
+		return err;
 	if (ext4_handle_valid(handle) &&
 	    EXT4_I(inode)->i_extra_isize < sbi->s_want_extra_isize &&
 	    !ext4_test_inode_state(inode, EXT4_STATE_NO_EXPAND)) {
@@ -5097,8 +5236,6 @@ int ext4_mark_inode_dirty(handle_t *hand
 						      sbi->s_want_extra_isize,
 						      iloc, handle);
 			if (ret) {
-				ext4_set_inode_state(inode,
-						     EXT4_STATE_NO_EXPAND);
 				if (mnt_count !=
 					le16_to_cpu(sbi->s_es->s_mnt_count)) {
 					ext4_warning(inode->i_sb,
@@ -5111,9 +5248,7 @@ int ext4_mark_inode_dirty(handle_t *hand
 			}
 		}
 	}
-	if (!err)
-		err = ext4_mark_iloc_dirty(handle, inode, &iloc);
-	return err;
+	return ext4_mark_iloc_dirty(handle, inode, &iloc);
 }
 
 /*
@@ -5278,6 +5413,13 @@ int ext4_page_mkwrite(struct vm_area_str
 
 	sb_start_pagefault(inode->i_sb);
 	file_update_time(vma->vm_file);
+
+	down_read(&EXT4_I(inode)->i_mmap_sem);
+
+	ret = ext4_convert_inline_data(inode);
+	if (ret)
+		goto out_ret;
+
 	/* Delalloc case is easy... */
 	if (test_opt(inode->i_sb, DELALLOC) &&
 	    !ext4_should_journal_data(inode) &&
@@ -5347,6 +5489,19 @@ retry_alloc:
 out_ret:
 	ret = block_page_mkwrite_return(ret);
 out:
+	up_read(&EXT4_I(inode)->i_mmap_sem);
 	sb_end_pagefault(inode->i_sb);
 	return ret;
 }
+
+int ext4_filemap_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
+{
+	struct inode *inode = file_inode(vma->vm_file);
+	int err;
+
+	down_read(&EXT4_I(inode)->i_mmap_sem);
+	err = filemap_fault(vma, vmf);
+	up_read(&EXT4_I(inode)->i_mmap_sem);
+
+	return err;
+}
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ext4/ioctl.c linux-libre-4.4.107-gnu/fs/ext4/ioctl.c
--- linux-libre-4.4-gnu/fs/ext4/ioctl.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/ext4/ioctl.c	2017-12-20 04:05:01.000000000 -0500
@@ -622,6 +622,9 @@ resizefs_out:
 		struct ext4_encryption_policy policy;
 		int err = 0;
 
+		if (!ext4_has_feature_encrypt(sb))
+			return -EOPNOTSUPP;
+
 		if (copy_from_user(&policy,
 				   (struct ext4_encryption_policy __user *)arg,
 				   sizeof(policy))) {
@@ -629,7 +632,17 @@ resizefs_out:
 			goto encryption_policy_out;
 		}
 
+		err = mnt_want_write_file(filp);
+		if (err)
+			goto encryption_policy_out;
+
+		mutex_lock(&inode->i_mutex);
+
 		err = ext4_process_policy(&policy, inode);
+
+		mutex_unlock(&inode->i_mutex);
+
+		mnt_drop_write_file(filp);
 encryption_policy_out:
 		return err;
 #else
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ext4/mballoc.c linux-libre-4.4.107-gnu/fs/ext4/mballoc.c
--- linux-libre-4.4-gnu/fs/ext4/mballoc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/ext4/mballoc.c	2017-12-20 04:05:01.000000000 -0500
@@ -669,7 +669,7 @@ static void ext4_mb_mark_free_simple(str
 	ext4_grpblk_t min;
 	ext4_grpblk_t max;
 	ext4_grpblk_t chunk;
-	unsigned short border;
+	unsigned int border;
 
 	BUG_ON(len > EXT4_CLUSTERS_PER_GROUP(sb));
 
@@ -815,7 +815,7 @@ static void mb_regenerate_buddy(struct e
  * for this page; do not hold this lock when calling this routine!
  */
 
-static int ext4_mb_init_cache(struct page *page, char *incore)
+static int ext4_mb_init_cache(struct page *page, char *incore, gfp_t gfp)
 {
 	ext4_group_t ngroups;
 	int blocksize;
@@ -848,7 +848,7 @@ static int ext4_mb_init_cache(struct pag
 	/* allocate buffer_heads to read bitmaps */
 	if (groups_per_page > 1) {
 		i = sizeof(struct buffer_head *) * groups_per_page;
-		bh = kzalloc(i, GFP_NOFS);
+		bh = kzalloc(i, gfp);
 		if (bh == NULL) {
 			err = -ENOMEM;
 			goto out;
@@ -983,7 +983,7 @@ out:
  * are on the same page e4b->bd_buddy_page is NULL and return value is 0.
  */
 static int ext4_mb_get_buddy_page_lock(struct super_block *sb,
-		ext4_group_t group, struct ext4_buddy *e4b)
+		ext4_group_t group, struct ext4_buddy *e4b, gfp_t gfp)
 {
 	struct inode *inode = EXT4_SB(sb)->s_buddy_cache;
 	int block, pnum, poff;
@@ -1002,7 +1002,7 @@ static int ext4_mb_get_buddy_page_lock(s
 	block = group * 2;
 	pnum = block / blocks_per_page;
 	poff = block % blocks_per_page;
-	page = find_or_create_page(inode->i_mapping, pnum, GFP_NOFS);
+	page = find_or_create_page(inode->i_mapping, pnum, gfp);
 	if (!page)
 		return -ENOMEM;
 	BUG_ON(page->mapping != inode->i_mapping);
@@ -1016,7 +1016,7 @@ static int ext4_mb_get_buddy_page_lock(s
 
 	block++;
 	pnum = block / blocks_per_page;
-	page = find_or_create_page(inode->i_mapping, pnum, GFP_NOFS);
+	page = find_or_create_page(inode->i_mapping, pnum, gfp);
 	if (!page)
 		return -ENOMEM;
 	BUG_ON(page->mapping != inode->i_mapping);
@@ -1042,7 +1042,7 @@ static void ext4_mb_put_buddy_page_lock(
  * calling this routine!
  */
 static noinline_for_stack
-int ext4_mb_init_group(struct super_block *sb, ext4_group_t group)
+int ext4_mb_init_group(struct super_block *sb, ext4_group_t group, gfp_t gfp)
 {
 
 	struct ext4_group_info *this_grp;
@@ -1062,7 +1062,7 @@ int ext4_mb_init_group(struct super_bloc
 	 * The call to ext4_mb_get_buddy_page_lock will mark the
 	 * page accessed.
 	 */
-	ret = ext4_mb_get_buddy_page_lock(sb, group, &e4b);
+	ret = ext4_mb_get_buddy_page_lock(sb, group, &e4b, gfp);
 	if (ret || !EXT4_MB_GRP_NEED_INIT(this_grp)) {
 		/*
 		 * somebody initialized the group
@@ -1072,7 +1072,7 @@ int ext4_mb_init_group(struct super_bloc
 	}
 
 	page = e4b.bd_bitmap_page;
-	ret = ext4_mb_init_cache(page, NULL);
+	ret = ext4_mb_init_cache(page, NULL, gfp);
 	if (ret)
 		goto err;
 	if (!PageUptodate(page)) {
@@ -1091,7 +1091,7 @@ int ext4_mb_init_group(struct super_bloc
 	}
 	/* init buddy cache */
 	page = e4b.bd_buddy_page;
-	ret = ext4_mb_init_cache(page, e4b.bd_bitmap);
+	ret = ext4_mb_init_cache(page, e4b.bd_bitmap, gfp);
 	if (ret)
 		goto err;
 	if (!PageUptodate(page)) {
@@ -1109,8 +1109,8 @@ err:
  * calling this routine!
  */
 static noinline_for_stack int
-ext4_mb_load_buddy(struct super_block *sb, ext4_group_t group,
-					struct ext4_buddy *e4b)
+ext4_mb_load_buddy_gfp(struct super_block *sb, ext4_group_t group,
+		       struct ext4_buddy *e4b, gfp_t gfp)
 {
 	int blocks_per_page;
 	int block;
@@ -1140,7 +1140,7 @@ ext4_mb_load_buddy(struct super_block *s
 		 * we need full data about the group
 		 * to make a good selection
 		 */
-		ret = ext4_mb_init_group(sb, group);
+		ret = ext4_mb_init_group(sb, group, gfp);
 		if (ret)
 			return ret;
 	}
@@ -1168,11 +1168,11 @@ ext4_mb_load_buddy(struct super_block *s
 			 * wait for it to initialize.
 			 */
 			page_cache_release(page);
-		page = find_or_create_page(inode->i_mapping, pnum, GFP_NOFS);
+		page = find_or_create_page(inode->i_mapping, pnum, gfp);
 		if (page) {
 			BUG_ON(page->mapping != inode->i_mapping);
 			if (!PageUptodate(page)) {
-				ret = ext4_mb_init_cache(page, NULL);
+				ret = ext4_mb_init_cache(page, NULL, gfp);
 				if (ret) {
 					unlock_page(page);
 					goto err;
@@ -1204,11 +1204,12 @@ ext4_mb_load_buddy(struct super_block *s
 	if (page == NULL || !PageUptodate(page)) {
 		if (page)
 			page_cache_release(page);
-		page = find_or_create_page(inode->i_mapping, pnum, GFP_NOFS);
+		page = find_or_create_page(inode->i_mapping, pnum, gfp);
 		if (page) {
 			BUG_ON(page->mapping != inode->i_mapping);
 			if (!PageUptodate(page)) {
-				ret = ext4_mb_init_cache(page, e4b->bd_bitmap);
+				ret = ext4_mb_init_cache(page, e4b->bd_bitmap,
+							 gfp);
 				if (ret) {
 					unlock_page(page);
 					goto err;
@@ -1247,6 +1248,12 @@ err:
 	return ret;
 }
 
+static int ext4_mb_load_buddy(struct super_block *sb, ext4_group_t group,
+			      struct ext4_buddy *e4b)
+{
+	return ext4_mb_load_buddy_gfp(sb, group, e4b, GFP_NOFS);
+}
+
 static void ext4_mb_unload_buddy(struct ext4_buddy *e4b)
 {
 	if (e4b->bd_bitmap_page)
@@ -1259,6 +1266,7 @@ static void ext4_mb_unload_buddy(struct
 static int mb_find_order_for_block(struct ext4_buddy *e4b, int block)
 {
 	int order = 1;
+	int bb_incr = 1 << (e4b->bd_blkbits - 1);
 	void *bb;
 
 	BUG_ON(e4b->bd_bitmap == e4b->bd_buddy);
@@ -1271,7 +1279,8 @@ static int mb_find_order_for_block(struc
 			/* this block is part of buddy of order 'order' */
 			return order;
 		}
-		bb += 1 << (e4b->bd_blkbits - order);
+		bb += bb_incr;
+		bb_incr >>= 1;
 		order++;
 	}
 	return 0;
@@ -2045,7 +2054,7 @@ static int ext4_mb_good_group(struct ext
 
 	/* We only do this if the grp has never been initialized */
 	if (unlikely(EXT4_MB_GRP_NEED_INIT(grp))) {
-		int ret = ext4_mb_init_group(ac->ac_sb, group);
+		int ret = ext4_mb_init_group(ac->ac_sb, group, GFP_NOFS);
 		if (ret)
 			return ret;
 	}
@@ -2127,8 +2136,10 @@ ext4_mb_regular_allocator(struct ext4_al
 	 * We search using buddy data only if the order of the request
 	 * is greater than equal to the sbi_s_mb_order2_reqs
 	 * You can tune it via /sys/fs/ext4/<partition>/mb_order2_req
+	 * We also support searching for power-of-two requests only for
+	 * requests upto maximum buddy size we have constructed.
 	 */
-	if (i >= sbi->s_mb_order2_reqs) {
+	if (i >= sbi->s_mb_order2_reqs && i <= sb->s_blocksize_bits + 2) {
 		/*
 		 * This should tell if fe_len is exactly power of 2
 		 */
@@ -2198,7 +2209,7 @@ repeat:
 			}
 
 			ac->ac_groups_scanned++;
-			if (cr == 0 && ac->ac_2order < sb->s_blocksize_bits+2)
+			if (cr == 0)
 				ext4_mb_simple_scan_group(ac, &e4b);
 			else if (cr == 1 && sbi->s_stripe &&
 					!(ac->ac_g_ex.fe_len % sbi->s_stripe))
@@ -2278,7 +2289,7 @@ static int ext4_mb_seq_groups_show(struc
 	struct ext4_group_info *grinfo;
 	struct sg {
 		struct ext4_group_info info;
-		ext4_grpblk_t counters[16];
+		ext4_grpblk_t counters[EXT4_MAX_BLOCK_LOG_SIZE + 2];
 	} sg;
 
 	group--;
@@ -2576,7 +2587,7 @@ int ext4_mb_init(struct super_block *sb)
 {
 	struct ext4_sb_info *sbi = EXT4_SB(sb);
 	unsigned i, j;
-	unsigned offset;
+	unsigned offset, offset_incr;
 	unsigned max;
 	int ret;
 
@@ -2605,11 +2616,13 @@ int ext4_mb_init(struct super_block *sb)
 
 	i = 1;
 	offset = 0;
+	offset_incr = 1 << (sb->s_blocksize_bits - 1);
 	max = sb->s_blocksize << 2;
 	do {
 		sbi->s_mb_offsets[i] = offset;
 		sbi->s_mb_maxs[i] = max;
-		offset += 1 << (sb->s_blocksize_bits - i);
+		offset += offset_incr;
+		offset_incr = offset_incr >> 1;
 		max = max >> 1;
 		i++;
 	} while (i <= sb->s_blocksize_bits + 1);
@@ -2928,7 +2941,7 @@ ext4_mb_mark_diskspace_used(struct ext4_
 		ext4_error(sb, "Allocating blocks %llu-%llu which overlap "
 			   "fs metadata", block, block+len);
 		/* File system mounted not to panic on error
-		 * Fix the bitmap and repeat the block allocation
+		 * Fix the bitmap and return EFSCORRUPTED
 		 * We leak some of the blocks here.
 		 */
 		ext4_lock_group(sb, ac->ac_b_ex.fe_group);
@@ -2937,7 +2950,7 @@ ext4_mb_mark_diskspace_used(struct ext4_
 		ext4_unlock_group(sb, ac->ac_b_ex.fe_group);
 		err = ext4_handle_dirty_metadata(handle, NULL, bitmap_bh);
 		if (!err)
-			err = -EAGAIN;
+			err = -EFSCORRUPTED;
 		goto out_err;
 	}
 
@@ -3109,6 +3122,13 @@ ext4_mb_normalize_request(struct ext4_al
 	if (ar->pright && start + size - 1 >= ar->lright)
 		size -= start + size - ar->lright;
 
+	/*
+	 * Trim allocation request for filesystems with artificially small
+	 * groups.
+	 */
+	if (size > EXT4_BLOCKS_PER_GROUP(ac->ac_sb))
+		size = EXT4_BLOCKS_PER_GROUP(ac->ac_sb);
+
 	end = start + size;
 
 	/* check we don't cross already preallocated blocks */
@@ -4502,18 +4522,7 @@ repeat:
 	}
 	if (likely(ac->ac_status == AC_STATUS_FOUND)) {
 		*errp = ext4_mb_mark_diskspace_used(ac, handle, reserv_clstrs);
-		if (*errp == -EAGAIN) {
-			/*
-			 * drop the reference that we took
-			 * in ext4_mb_use_best_found
-			 */
-			ext4_mb_release_context(ac);
-			ac->ac_b_ex.fe_group = 0;
-			ac->ac_b_ex.fe_start = 0;
-			ac->ac_b_ex.fe_len = 0;
-			ac->ac_status = AC_STATUS_CONTINUE;
-			goto repeat;
-		} else if (*errp) {
+		if (*errp) {
 			ext4_discard_allocated_blocks(ac);
 			goto errout;
 		} else {
@@ -4815,7 +4824,9 @@ do_more:
 #endif
 	trace_ext4_mballoc_free(sb, inode, block_group, bit, count_clusters);
 
-	err = ext4_mb_load_buddy(sb, block_group, &e4b);
+	/* __GFP_NOFAIL: retry infinitely, ignore TIF_MEMDIE and memcg limit. */
+	err = ext4_mb_load_buddy_gfp(sb, block_group, &e4b,
+				     GFP_NOFS|__GFP_NOFAIL);
 	if (err)
 		goto error_return;
 
@@ -5217,7 +5228,7 @@ int ext4_trim_fs(struct super_block *sb,
 		grp = ext4_get_group_info(sb, group);
 		/* We only do this if the grp has never been initialized */
 		if (unlikely(EXT4_MB_GRP_NEED_INIT(grp))) {
-			ret = ext4_mb_init_group(sb, group);
+			ret = ext4_mb_init_group(sb, group, GFP_NOFS);
 			if (ret)
 				break;
 		}
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ext4/move_extent.c linux-libre-4.4.107-gnu/fs/ext4/move_extent.c
--- linux-libre-4.4-gnu/fs/ext4/move_extent.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/ext4/move_extent.c	2017-12-20 04:05:01.000000000 -0500
@@ -60,10 +60,10 @@ ext4_double_down_write_data_sem(struct i
 {
 	if (first < second) {
 		down_write(&EXT4_I(first)->i_data_sem);
-		down_write_nested(&EXT4_I(second)->i_data_sem, SINGLE_DEPTH_NESTING);
+		down_write_nested(&EXT4_I(second)->i_data_sem, I_DATA_SEM_OTHER);
 	} else {
 		down_write(&EXT4_I(second)->i_data_sem);
-		down_write_nested(&EXT4_I(first)->i_data_sem, SINGLE_DEPTH_NESTING);
+		down_write_nested(&EXT4_I(first)->i_data_sem, I_DATA_SEM_OTHER);
 
 	}
 }
@@ -187,7 +187,7 @@ mext_page_mkuptodate(struct page *page,
 	if (PageUptodate(page))
 		return 0;
 
-	blocksize = 1 << inode->i_blkbits;
+	blocksize = i_blocksize(inode);
 	if (!page_has_buffers(page))
 		create_empty_buffers(page, blocksize, 0);
 
@@ -265,11 +265,12 @@ move_extent_per_page(struct file *o_filp
 	ext4_lblk_t orig_blk_offset, donor_blk_offset;
 	unsigned long blocksize = orig_inode->i_sb->s_blocksize;
 	unsigned int tmp_data_size, data_size, replaced_size;
-	int err2, jblocks, retries = 0;
+	int i, err2, jblocks, retries = 0;
 	int replaced_count = 0;
 	int from = data_offset_in_page << orig_inode->i_blkbits;
 	int blocks_per_page = PAGE_CACHE_SIZE >> orig_inode->i_blkbits;
 	struct super_block *sb = orig_inode->i_sb;
+	struct buffer_head *bh = NULL;
 
 	/*
 	 * It needs twice the amount of ordinary journal buffers because
@@ -380,8 +381,17 @@ data_copy:
 	}
 	/* Perform all necessary steps similar write_begin()/write_end()
 	 * but keeping in mind that i_size will not change */
-	*err = __block_write_begin(pagep[0], from, replaced_size,
-				   ext4_get_block);
+	if (!page_has_buffers(pagep[0]))
+		create_empty_buffers(pagep[0], 1 << orig_inode->i_blkbits, 0);
+	bh = page_buffers(pagep[0]);
+	for (i = 0; i < data_offset_in_page; i++)
+		bh = bh->b_this_page;
+	for (i = 0; i < block_len_in_page; i++) {
+		*err = ext4_get_block(orig_inode, orig_blk_offset + i, bh, 0);
+		if (*err < 0)
+			break;
+		bh = bh->b_this_page;
+	}
 	if (!*err)
 		*err = block_commit_write(pagep[0], from, from + replaced_size);
 
@@ -474,6 +484,13 @@ mext_check_arguments(struct inode *orig_
 		return -EBUSY;
 	}
 
+	if (IS_NOQUOTA(orig_inode) || IS_NOQUOTA(donor_inode)) {
+		ext4_debug("ext4 move extent: The argument files should "
+			"not be quota files [ino:orig %lu, donor %lu]\n",
+			orig_inode->i_ino, donor_inode->i_ino);
+		return -EBUSY;
+	}
+
 	/* Ext4 move extent supports only extent based file */
 	if (!(ext4_test_inode_flag(orig_inode, EXT4_INODE_EXTENTS))) {
 		ext4_debug("ext4 move extent: orig file is not extents "
@@ -581,6 +598,13 @@ ext4_move_extents(struct file *o_filp, s
 		return -EOPNOTSUPP;
 	}
 
+	if (ext4_encrypted_inode(orig_inode) ||
+	    ext4_encrypted_inode(donor_inode)) {
+		ext4_msg(orig_inode->i_sb, KERN_ERR,
+			 "Online defrag not supported for encrypted files");
+		return -EOPNOTSUPP;
+	}
+
 	/* Protect orig and donor inodes against a truncate */
 	lock_two_nondirectories(orig_inode, donor_inode);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ext4/namei.c linux-libre-4.4.107-gnu/fs/ext4/namei.c
--- linux-libre-4.4-gnu/fs/ext4/namei.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/ext4/namei.c	2017-12-20 04:05:01.000000000 -0500
@@ -420,15 +420,14 @@ static __le32 ext4_dx_csum(struct inode
 	struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb);
 	struct ext4_inode_info *ei = EXT4_I(inode);
 	__u32 csum;
-	__le32 save_csum;
 	int size;
+	__u32 dummy_csum = 0;
+	int offset = offsetof(struct dx_tail, dt_checksum);
 
 	size = count_offset + (count * sizeof(struct dx_entry));
-	save_csum = t->dt_checksum;
-	t->dt_checksum = 0;
 	csum = ext4_chksum(sbi, ei->i_csum_seed, (__u8 *)dirent, size);
-	csum = ext4_chksum(sbi, csum, (__u8 *)t, sizeof(struct dx_tail));
-	t->dt_checksum = save_csum;
+	csum = ext4_chksum(sbi, csum, (__u8 *)t, offset);
+	csum = ext4_chksum(sbi, csum, (__u8 *)&dummy_csum, sizeof(dummy_csum));
 
 	return cpu_to_le32(csum);
 }
@@ -1244,9 +1243,9 @@ static inline int ext4_match(struct ext4
 	if (unlikely(!name)) {
 		if (fname->usr_fname->name[0] == '_') {
 			int ret;
-			if (de->name_len < 16)
+			if (de->name_len <= 32)
 				return 0;
-			ret = memcmp(de->name + de->name_len - 16,
+			ret = memcmp(de->name + ((de->name_len - 17) & ~15),
 				     fname->crypto_buf.name + 8, 16);
 			return (ret == 0) ? 1 : 0;
 		}
@@ -1404,6 +1403,10 @@ static struct buffer_head * ext4_find_en
 			       "falling back\n"));
 	}
 	nblocks = dir->i_size >> EXT4_BLOCK_SIZE_BITS(sb);
+	if (!nblocks) {
+		ret = NULL;
+		goto cleanup_and_exit;
+	}
 	start = EXT4_I(dir)->i_dir_start_lookup;
 	if (start >= nblocks)
 		start = 0;
@@ -1558,6 +1561,24 @@ static struct dentry *ext4_lookup(struct
 	struct ext4_dir_entry_2 *de;
 	struct buffer_head *bh;
 
+       if (ext4_encrypted_inode(dir)) {
+               int res = ext4_get_encryption_info(dir);
+
+		/*
+		 * This should be a properly defined flag for
+		 * dentry->d_flags when we uplift this to the VFS.
+		 * d_fsdata is set to (void *) 1 if if the dentry is
+		 * created while the directory was encrypted and we
+		 * don't have access to the key.
+		 */
+	       dentry->d_fsdata = NULL;
+	       if (ext4_encryption_info(dir))
+		       dentry->d_fsdata = (void *) 1;
+	       d_set_d_op(dentry, &ext4_encrypted_d_ops);
+	       if (res && res != -ENOKEY)
+		       return ERR_PTR(res);
+       }
+
 	if (dentry->d_name.len > EXT4_NAME_LEN)
 		return ERR_PTR(-ENAMETOOLONG);
 
@@ -2018,33 +2039,31 @@ static int make_indexed_dir(handle_t *ha
 	frame->entries = entries;
 	frame->at = entries;
 	frame->bh = bh;
-	bh = bh2;
 
 	retval = ext4_handle_dirty_dx_node(handle, dir, frame->bh);
 	if (retval)
 		goto out_frames;	
-	retval = ext4_handle_dirty_dirent_node(handle, dir, bh);
+	retval = ext4_handle_dirty_dirent_node(handle, dir, bh2);
 	if (retval)
 		goto out_frames;	
 
-	de = do_split(handle,dir, &bh, frame, &fname->hinfo);
+	de = do_split(handle,dir, &bh2, frame, &fname->hinfo);
 	if (IS_ERR(de)) {
 		retval = PTR_ERR(de);
 		goto out_frames;
 	}
-	dx_release(frames);
 
-	retval = add_dirent_to_buf(handle, fname, dir, inode, de, bh);
-	brelse(bh);
-	return retval;
+	retval = add_dirent_to_buf(handle, fname, dir, inode, de, bh2);
 out_frames:
 	/*
 	 * Even if the block split failed, we have to properly write
 	 * out all the changes we did so far. Otherwise we can end up
 	 * with corrupted filesystem.
 	 */
-	ext4_mark_inode_dirty(handle, dir);
+	if (retval)
+		ext4_mark_inode_dirty(handle, dir);
 	dx_release(frames);
+	brelse(bh2);
 	return retval;
 }
 
@@ -2809,7 +2828,7 @@ int ext4_orphan_add(handle_t *handle, st
 			 * list entries can cause panics at unmount time.
 			 */
 			mutex_lock(&sbi->s_orphan_lock);
-			list_del(&EXT4_I(inode)->i_orphan);
+			list_del_init(&EXT4_I(inode)->i_orphan);
 			mutex_unlock(&sbi->s_orphan_lock);
 		}
 	}
@@ -3491,6 +3510,12 @@ static int ext4_rename(struct inode *old
 	int credits;
 	u8 old_file_type;
 
+	if ((ext4_encrypted_inode(old_dir) &&
+	     !ext4_has_encryption_key(old_dir)) ||
+	    (ext4_encrypted_inode(new_dir) &&
+	     !ext4_has_encryption_key(new_dir)))
+		return -ENOKEY;
+
 	retval = dquot_initialize(old.dir);
 	if (retval)
 		return retval;
@@ -3691,6 +3716,12 @@ static int ext4_cross_rename(struct inod
 	u8 new_file_type;
 	int retval;
 
+	if ((ext4_encrypted_inode(old_dir) &&
+	     !ext4_has_encryption_key(old_dir)) ||
+	    (ext4_encrypted_inode(new_dir) &&
+	     !ext4_has_encryption_key(new_dir)))
+		return -ENOKEY;
+
 	if ((ext4_encrypted_inode(old_dir) ||
 	     ext4_encrypted_inode(new_dir)) &&
 	    (old_dir != new_dir) &&
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ext4/page-io.c linux-libre-4.4.107-gnu/fs/ext4/page-io.c
--- linux-libre-4.4-gnu/fs/ext4/page-io.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/ext4/page-io.c	2017-12-20 04:05:01.000000000 -0500
@@ -23,6 +23,7 @@
 #include <linux/kernel.h>
 #include <linux/slab.h>
 #include <linux/mm.h>
+#include <linux/backing-dev.h>
 
 #include "ext4_jbd2.h"
 #include "xattr.h"
@@ -485,9 +486,20 @@ int ext4_bio_write_page(struct ext4_io_s
 
 	if (ext4_encrypted_inode(inode) && S_ISREG(inode->i_mode) &&
 	    nr_to_submit) {
-		data_page = ext4_encrypt(inode, page);
+		gfp_t gfp_flags = GFP_NOFS;
+
+	retry_encrypt:
+		data_page = ext4_encrypt(inode, page, gfp_flags);
 		if (IS_ERR(data_page)) {
 			ret = PTR_ERR(data_page);
+			if (ret == -ENOMEM && wbc->sync_mode == WB_SYNC_ALL) {
+				if (io->io_bio) {
+					ext4_io_submit(io);
+					congestion_wait(BLK_RW_ASYNC, HZ/50);
+				}
+				gfp_flags |= __GFP_NOFAIL;
+				goto retry_encrypt;
+			}
 			data_page = NULL;
 			goto out;
 		}
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ext4/readpage.c linux-libre-4.4.107-gnu/fs/ext4/readpage.c
--- linux-libre-4.4-gnu/fs/ext4/readpage.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/ext4/readpage.c	2017-12-20 04:05:01.000000000 -0500
@@ -279,7 +279,7 @@ int ext4_mpage_readpages(struct address_
 
 			if (ext4_encrypted_inode(inode) &&
 			    S_ISREG(inode->i_mode)) {
-				ctx = ext4_get_crypto_ctx(inode);
+				ctx = ext4_get_crypto_ctx(inode, GFP_NOFS);
 				if (IS_ERR(ctx))
 					goto set_error_page;
 			}
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ext4/resize.c linux-libre-4.4.107-gnu/fs/ext4/resize.c
--- linux-libre-4.4-gnu/fs/ext4/resize.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/ext4/resize.c	2017-12-20 04:05:01.000000000 -0500
@@ -198,7 +198,7 @@ static struct ext4_new_flex_group_data *
 	if (flex_gd == NULL)
 		goto out3;
 
-	if (flexbg_size >= UINT_MAX / sizeof(struct ext4_new_flex_group_data))
+	if (flexbg_size >= UINT_MAX / sizeof(struct ext4_new_group_data))
 		goto out2;
 	flex_gd->count = flexbg_size;
 
@@ -1926,7 +1926,8 @@ retry:
 			n_desc_blocks = o_desc_blocks +
 				le16_to_cpu(es->s_reserved_gdt_blocks);
 			n_group = n_desc_blocks * EXT4_DESC_PER_BLOCK(sb);
-			n_blocks_count = n_group * EXT4_BLOCKS_PER_GROUP(sb);
+			n_blocks_count = (ext4_fsblk_t)n_group *
+				EXT4_BLOCKS_PER_GROUP(sb);
 			n_group--; /* set to last group number */
 		}
 
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ext4/super.c linux-libre-4.4.107-gnu/fs/ext4/super.c
--- linux-libre-4.4-gnu/fs/ext4/super.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/ext4/super.c	2017-12-20 04:05:01.000000000 -0500
@@ -793,6 +793,7 @@ static void ext4_put_super(struct super_
 {
 	struct ext4_sb_info *sbi = EXT4_SB(sb);
 	struct ext4_super_block *es = sbi->s_es;
+	int aborted = 0;
 	int i, err;
 
 	ext4_unregister_li_request(sb);
@@ -802,9 +803,10 @@ static void ext4_put_super(struct super_
 	destroy_workqueue(sbi->rsv_conversion_wq);
 
 	if (sbi->s_journal) {
+		aborted = is_journal_aborted(sbi->s_journal);
 		err = jbd2_journal_destroy(sbi->s_journal);
 		sbi->s_journal = NULL;
-		if (err < 0)
+		if ((err < 0) && !aborted)
 			ext4_abort(sb, "Couldn't clean up the journal");
 	}
 
@@ -816,7 +818,7 @@ static void ext4_put_super(struct super_
 	ext4_ext_release(sb);
 	ext4_xattr_put_super(sb);
 
-	if (!(sb->s_flags & MS_RDONLY)) {
+	if (!(sb->s_flags & MS_RDONLY) && !aborted) {
 		ext4_clear_feature_journal_needs_recovery(sb);
 		es->s_state = cpu_to_le16(sbi->s_mount_state);
 	}
@@ -958,6 +960,7 @@ static void init_once(void *foo)
 	INIT_LIST_HEAD(&ei->i_orphan);
 	init_rwsem(&ei->xattr_sem);
 	init_rwsem(&ei->i_data_sem);
+	init_rwsem(&ei->i_mmap_sem);
 	inode_init_once(&ei->vfs_inode);
 }
 
@@ -1292,9 +1295,9 @@ static int set_qf_name(struct super_bloc
 		return -1;
 	}
 	if (ext4_has_feature_quota(sb)) {
-		ext4_msg(sb, KERN_ERR, "Cannot set journaled quota options "
-			 "when QUOTA feature is enabled");
-		return -1;
+		ext4_msg(sb, KERN_INFO, "Journaled quota options "
+			 "ignored when QUOTA feature is enabled");
+		return 1;
 	}
 	qname = match_strdup(args);
 	if (!qname) {
@@ -1657,10 +1660,10 @@ static int handle_mount_opt(struct super
 			return -1;
 		}
 		if (ext4_has_feature_quota(sb)) {
-			ext4_msg(sb, KERN_ERR,
-				 "Cannot set journaled quota options "
+			ext4_msg(sb, KERN_INFO,
+				 "Quota format mount options ignored "
 				 "when QUOTA feature is enabled");
-			return -1;
+			return 1;
 		}
 		sbi->s_jquota_fmt = m->mount_opt;
 #endif
@@ -1721,11 +1724,11 @@ static int parse_options(char *options,
 #ifdef CONFIG_QUOTA
 	if (ext4_has_feature_quota(sb) &&
 	    (test_opt(sb, USRQUOTA) || test_opt(sb, GRPQUOTA))) {
-		ext4_msg(sb, KERN_ERR, "Cannot set quota options when QUOTA "
-			 "feature is enabled");
-		return 0;
-	}
-	if (sbi->s_qf_names[USRQUOTA] || sbi->s_qf_names[GRPQUOTA]) {
+		ext4_msg(sb, KERN_INFO, "Quota feature enabled, usrquota and grpquota "
+			 "mount options ignored.");
+		clear_opt(sb, USRQUOTA);
+		clear_opt(sb, GRPQUOTA);
+	} else if (sbi->s_qf_names[USRQUOTA] || sbi->s_qf_names[GRPQUOTA]) {
 		if (test_opt(sb, USRQUOTA) && sbi->s_qf_names[USRQUOTA])
 			clear_opt(sb, USRQUOTA);
 
@@ -2029,23 +2032,25 @@ failed:
 static __le16 ext4_group_desc_csum(struct super_block *sb, __u32 block_group,
 				   struct ext4_group_desc *gdp)
 {
-	int offset;
+	int offset = offsetof(struct ext4_group_desc, bg_checksum);
 	__u16 crc = 0;
 	__le32 le_group = cpu_to_le32(block_group);
 	struct ext4_sb_info *sbi = EXT4_SB(sb);
 
 	if (ext4_has_metadata_csum(sbi->s_sb)) {
 		/* Use new metadata_csum algorithm */
-		__le16 save_csum;
 		__u32 csum32;
+		__u16 dummy_csum = 0;
 
-		save_csum = gdp->bg_checksum;
-		gdp->bg_checksum = 0;
 		csum32 = ext4_chksum(sbi, sbi->s_csum_seed, (__u8 *)&le_group,
 				     sizeof(le_group));
-		csum32 = ext4_chksum(sbi, csum32, (__u8 *)gdp,
-				     sbi->s_desc_size);
-		gdp->bg_checksum = save_csum;
+		csum32 = ext4_chksum(sbi, csum32, (__u8 *)gdp, offset);
+		csum32 = ext4_chksum(sbi, csum32, (__u8 *)&dummy_csum,
+				     sizeof(dummy_csum));
+		offset += sizeof(dummy_csum);
+		if (offset < sbi->s_desc_size)
+			csum32 = ext4_chksum(sbi, csum32, (__u8 *)gdp + offset,
+					     sbi->s_desc_size - offset);
 
 		crc = csum32 & 0xFFFF;
 		goto out;
@@ -2055,8 +2060,6 @@ static __le16 ext4_group_desc_csum(struc
 	if (!ext4_has_feature_gdt_csum(sb))
 		return 0;
 
-	offset = offsetof(struct ext4_group_desc, bg_checksum);
-
 	crc = crc16(~0, sbi->s_es->s_uuid, sizeof(sbi->s_es->s_uuid));
 	crc = crc16(crc, (__u8 *)&le_group, sizeof(le_group));
 	crc = crc16(crc, (__u8 *)gdp, offset);
@@ -2092,6 +2095,7 @@ void ext4_group_desc_csum_set(struct sup
 
 /* Called at mount-time, super-block is locked */
 static int ext4_check_descriptors(struct super_block *sb,
+				  ext4_fsblk_t sb_block,
 				  ext4_group_t *first_not_zeroed)
 {
 	struct ext4_sb_info *sbi = EXT4_SB(sb);
@@ -2122,6 +2126,11 @@ static int ext4_check_descriptors(struct
 			grp = i;
 
 		block_bitmap = ext4_block_bitmap(sb, gdp);
+		if (block_bitmap == sb_block) {
+			ext4_msg(sb, KERN_ERR, "ext4_check_descriptors: "
+				 "Block bitmap for group %u overlaps "
+				 "superblock", i);
+		}
 		if (block_bitmap < first_block || block_bitmap > last_block) {
 			ext4_msg(sb, KERN_ERR, "ext4_check_descriptors: "
 			       "Block bitmap for group %u not in group "
@@ -2129,6 +2138,11 @@ static int ext4_check_descriptors(struct
 			return 0;
 		}
 		inode_bitmap = ext4_inode_bitmap(sb, gdp);
+		if (inode_bitmap == sb_block) {
+			ext4_msg(sb, KERN_ERR, "ext4_check_descriptors: "
+				 "Inode bitmap for group %u overlaps "
+				 "superblock", i);
+		}
 		if (inode_bitmap < first_block || inode_bitmap > last_block) {
 			ext4_msg(sb, KERN_ERR, "ext4_check_descriptors: "
 			       "Inode bitmap for group %u not in group "
@@ -2136,6 +2150,11 @@ static int ext4_check_descriptors(struct
 			return 0;
 		}
 		inode_table = ext4_inode_table(sb, gdp);
+		if (inode_table == sb_block) {
+			ext4_msg(sb, KERN_ERR, "ext4_check_descriptors: "
+				 "Inode table for group %u overlaps "
+				 "superblock", i);
+		}
 		if (inode_table < first_block ||
 		    inode_table + sbi->s_itb_per_group - 1 > last_block) {
 			ext4_msg(sb, KERN_ERR, "ext4_check_descriptors: "
@@ -2186,6 +2205,7 @@ static void ext4_orphan_cleanup(struct s
 	unsigned int s_flags = sb->s_flags;
 	int nr_orphans = 0, nr_truncates = 0;
 #ifdef CONFIG_QUOTA
+	int quota_update = 0;
 	int i;
 #endif
 	if (!es->s_last_orphan) {
@@ -2224,14 +2244,32 @@ static void ext4_orphan_cleanup(struct s
 #ifdef CONFIG_QUOTA
 	/* Needed for iput() to work correctly and not trash data */
 	sb->s_flags |= MS_ACTIVE;
-	/* Turn on quotas so that they are updated correctly */
+
+	/*
+	 * Turn on quotas which were not enabled for read-only mounts if
+	 * filesystem has quota feature, so that they are updated correctly.
+	 */
+	if (ext4_has_feature_quota(sb) && (s_flags & MS_RDONLY)) {
+		int ret = ext4_enable_quotas(sb);
+
+		if (!ret)
+			quota_update = 1;
+		else
+			ext4_msg(sb, KERN_ERR,
+				"Cannot turn on quotas: error %d", ret);
+	}
+
+	/* Turn on journaled quotas used for old sytle */
 	for (i = 0; i < EXT4_MAXQUOTAS; i++) {
 		if (EXT4_SB(sb)->s_qf_names[i]) {
 			int ret = ext4_quota_on_mount(sb, i);
-			if (ret < 0)
+
+			if (!ret)
+				quota_update = 1;
+			else
 				ext4_msg(sb, KERN_ERR,
 					"Cannot turn on journaled "
-					"quota: error %d", ret);
+					"quota: type %d: error %d", i, ret);
 		}
 	}
 #endif
@@ -2239,6 +2277,16 @@ static void ext4_orphan_cleanup(struct s
 	while (es->s_last_orphan) {
 		struct inode *inode;
 
+		/*
+		 * We may have encountered an error during cleanup; if
+		 * so, skip the rest.
+		 */
+		if (EXT4_SB(sb)->s_mount_state & EXT4_ERROR_FS) {
+			jbd_debug(1, "Skipping orphan recovery on fs with errors.\n");
+			es->s_last_orphan = 0;
+			break;
+		}
+
 		inode = ext4_orphan_get(sb, le32_to_cpu(es->s_last_orphan));
 		if (IS_ERR(inode)) {
 			es->s_last_orphan = 0;
@@ -2280,10 +2328,12 @@ static void ext4_orphan_cleanup(struct s
 		ext4_msg(sb, KERN_INFO, "%d truncate%s cleaned up",
 		       PLURAL(nr_truncates));
 #ifdef CONFIG_QUOTA
-	/* Turn quotas off */
-	for (i = 0; i < EXT4_MAXQUOTAS; i++) {
-		if (sb_dqopt(sb)->files[i])
-			dquot_quota_off(sb, i);
+	/* Turn off quotas if they were enabled for orphan cleanup */
+	if (quota_update) {
+		for (i = 0; i < EXT4_MAXQUOTAS; i++) {
+			if (sb_dqopt(sb)->files[i])
+				dquot_quota_off(sb, i);
+		}
 	}
 #endif
 	sb->s_flags = s_flags; /* Restore MS_RDONLY status */
@@ -2449,9 +2499,9 @@ static unsigned long ext4_get_stripe_siz
 
 	if (sbi->s_stripe && sbi->s_stripe <= sbi->s_blocks_per_group)
 		ret = sbi->s_stripe;
-	else if (stripe_width <= sbi->s_blocks_per_group)
+	else if (stripe_width && stripe_width <= sbi->s_blocks_per_group)
 		ret = stripe_width;
-	else if (stride <= sbi->s_blocks_per_group)
+	else if (stride && stride <= sbi->s_blocks_per_group)
 		ret = stride;
 	else
 		ret = 0;
@@ -3010,10 +3060,15 @@ static int count_overhead(struct super_b
 			ext4_set_bit(s++, buf);
 			count++;
 		}
-		for (j = ext4_bg_num_gdb(sb, grp); j > 0; j--) {
-			ext4_set_bit(EXT4_B2C(sbi, s++), buf);
-			count++;
+		j = ext4_bg_num_gdb(sb, grp);
+		if (s + j > EXT4_BLOCKS_PER_GROUP(sb)) {
+			ext4_error(sb, "Invalid number of block group "
+				   "descriptor blocks: %d", j);
+			j = EXT4_BLOCKS_PER_GROUP(sb) - s;
 		}
+		count += j;
+		for (; j > 0; j--)
+			ext4_set_bit(EXT4_B2C(sbi, s++), buf);
 	}
 	if (!count)
 		return 0;
@@ -3103,7 +3158,7 @@ static int ext4_fill_super(struct super_
 	char *orig_data = kstrdup(data, GFP_KERNEL);
 	struct buffer_head *bh;
 	struct ext4_super_block *es = NULL;
-	struct ext4_sb_info *sbi;
+	struct ext4_sb_info *sbi = kzalloc(sizeof(*sbi), GFP_KERNEL);
 	ext4_fsblk_t block;
 	ext4_fsblk_t sb_block = get_sb_block(&data);
 	ext4_fsblk_t logical_sb_block;
@@ -3122,16 +3177,14 @@ static int ext4_fill_super(struct super_
 	unsigned int journal_ioprio = DEFAULT_JOURNAL_IOPRIO;
 	ext4_group_t first_not_zeroed;
 
-	sbi = kzalloc(sizeof(*sbi), GFP_KERNEL);
-	if (!sbi)
-		goto out_free_orig;
+	if ((data && !orig_data) || !sbi)
+		goto out_free_base;
 
 	sbi->s_blockgroup_lock =
 		kzalloc(sizeof(struct blockgroup_lock), GFP_KERNEL);
-	if (!sbi->s_blockgroup_lock) {
-		kfree(sbi);
-		goto out_free_orig;
-	}
+	if (!sbi->s_blockgroup_lock)
+		goto out_free_base;
+
 	sb->s_fs_info = sbi;
 	sbi->s_sb = sb;
 	sbi->s_inode_readahead_blks = EXT4_DEF_INODE_READAHEAD_BLKS;
@@ -3277,11 +3330,19 @@ static int ext4_fill_super(struct super_
 	 */
 	sbi->s_li_wait_mult = EXT4_DEF_LI_WAIT_MULT;
 
-	if (!parse_options((char *) sbi->s_es->s_mount_opts, sb,
-			   &journal_devnum, &journal_ioprio, 0)) {
-		ext4_msg(sb, KERN_WARNING,
-			 "failed to parse options in superblock: %s",
-			 sbi->s_es->s_mount_opts);
+	if (sbi->s_es->s_mount_opts[0]) {
+		char *s_mount_opts = kstrndup(sbi->s_es->s_mount_opts,
+					      sizeof(sbi->s_es->s_mount_opts),
+					      GFP_KERNEL);
+		if (!s_mount_opts)
+			goto failed_mount;
+		if (!parse_options(s_mount_opts, sb, &journal_devnum,
+				   &journal_ioprio, 0)) {
+			ext4_msg(sb, KERN_WARNING,
+				 "failed to parse options in superblock: %s",
+				 s_mount_opts);
+		}
+		kfree(s_mount_opts);
 	}
 	sbi->s_def_mount_opt = sbi->s_mount_opt;
 	if (!parse_options((char *) data, sb, &journal_devnum,
@@ -3307,6 +3368,11 @@ static int ext4_fill_super(struct super_
 				 "both data=journal and dax");
 			goto failed_mount;
 		}
+		if (ext4_has_feature_encrypt(sb)) {
+			ext4_msg(sb, KERN_WARNING,
+				 "encrypted files will use data=ordered "
+				 "instead of data journaling mode");
+		}
 		if (test_opt(sb, DELALLOC))
 			clear_opt(sb, DELALLOC);
 	} else {
@@ -3367,7 +3433,22 @@ static int ext4_fill_super(struct super_
 	if (blocksize < EXT4_MIN_BLOCK_SIZE ||
 	    blocksize > EXT4_MAX_BLOCK_SIZE) {
 		ext4_msg(sb, KERN_ERR,
-		       "Unsupported filesystem blocksize %d", blocksize);
+		       "Unsupported filesystem blocksize %d (%d log_block_size)",
+			 blocksize, le32_to_cpu(es->s_log_block_size));
+		goto failed_mount;
+	}
+	if (le32_to_cpu(es->s_log_block_size) >
+	    (EXT4_MAX_BLOCK_LOG_SIZE - EXT4_MIN_BLOCK_LOG_SIZE)) {
+		ext4_msg(sb, KERN_ERR,
+			 "Invalid log block size: %u",
+			 le32_to_cpu(es->s_log_block_size));
+		goto failed_mount;
+	}
+
+	if (le16_to_cpu(sbi->s_es->s_reserved_gdt_blocks) > (blocksize / 4)) {
+		ext4_msg(sb, KERN_ERR,
+			 "Number of reserved GDT blocks insanely large: %d",
+			 le16_to_cpu(sbi->s_es->s_reserved_gdt_blocks));
 		goto failed_mount;
 	}
 
@@ -3454,12 +3535,16 @@ static int ext4_fill_super(struct super_
 
 	sbi->s_blocks_per_group = le32_to_cpu(es->s_blocks_per_group);
 	sbi->s_inodes_per_group = le32_to_cpu(es->s_inodes_per_group);
-	if (EXT4_INODE_SIZE(sb) == 0 || EXT4_INODES_PER_GROUP(sb) == 0)
-		goto cantfind_ext4;
 
 	sbi->s_inodes_per_block = blocksize / EXT4_INODE_SIZE(sb);
 	if (sbi->s_inodes_per_block == 0)
 		goto cantfind_ext4;
+	if (sbi->s_inodes_per_group < sbi->s_inodes_per_block ||
+	    sbi->s_inodes_per_group > blocksize * 8) {
+		ext4_msg(sb, KERN_ERR, "invalid inodes per group: %lu\n",
+			 sbi->s_blocks_per_group);
+		goto failed_mount;
+	}
 	sbi->s_itb_per_group = sbi->s_inodes_per_group /
 					sbi->s_inodes_per_block;
 	sbi->s_desc_per_block = blocksize / EXT4_DESC_SIZE(sb);
@@ -3499,6 +3584,13 @@ static int ext4_fill_super(struct super_
 				 "block size (%d)", clustersize, blocksize);
 			goto failed_mount;
 		}
+		if (le32_to_cpu(es->s_log_cluster_size) >
+		    (EXT4_MAX_CLUSTER_LOG_SIZE - EXT4_MIN_BLOCK_LOG_SIZE)) {
+			ext4_msg(sb, KERN_ERR,
+				 "Invalid log cluster size: %u",
+				 le32_to_cpu(es->s_log_cluster_size));
+			goto failed_mount;
+		}
 		sbi->s_cluster_bits = le32_to_cpu(es->s_log_cluster_size) -
 			le32_to_cpu(es->s_log_block_size);
 		sbi->s_clusters_per_group =
@@ -3535,13 +3627,6 @@ static int ext4_fill_super(struct super_
 	}
 	sbi->s_cluster_ratio = clustersize / blocksize;
 
-	if (sbi->s_inodes_per_group > blocksize * 8) {
-		ext4_msg(sb, KERN_ERR,
-		       "#inodes per group too big: %lu",
-		       sbi->s_inodes_per_group);
-		goto failed_mount;
-	}
-
 	/* Do we have standard group size of clustersize * 8 blocks ? */
 	if (sbi->s_blocks_per_group == clustersize << 3)
 		set_opt2(sb, STD_GROUP_SIZE);
@@ -3601,6 +3686,15 @@ static int ext4_fill_super(struct super_
 			(EXT4_MAX_BLOCK_FILE_PHYS / EXT4_BLOCKS_PER_GROUP(sb)));
 	db_count = (sbi->s_groups_count + EXT4_DESC_PER_BLOCK(sb) - 1) /
 		   EXT4_DESC_PER_BLOCK(sb);
+	if (ext4_has_feature_meta_bg(sb)) {
+		if (le32_to_cpu(es->s_first_meta_bg) > db_count) {
+			ext4_msg(sb, KERN_WARNING,
+				 "first meta block group too large: %u "
+				 "(group descriptor block count %u)",
+				 le32_to_cpu(es->s_first_meta_bg), db_count);
+			goto failed_mount;
+		}
+	}
 	sbi->s_group_desc = ext4_kvmalloc(db_count *
 					  sizeof(struct buffer_head *),
 					  GFP_KERNEL);
@@ -3622,7 +3716,7 @@ static int ext4_fill_super(struct super_
 			goto failed_mount2;
 		}
 	}
-	if (!ext4_check_descriptors(sb, &first_not_zeroed)) {
+	if (!ext4_check_descriptors(sb, logical_sb_block, &first_not_zeroed)) {
 		ext4_msg(sb, KERN_ERR, "group descriptors corrupted!");
 		ret = -EFSCORRUPTED;
 		goto failed_mount2;
@@ -3675,7 +3769,8 @@ static int ext4_fill_super(struct super_
 	 * root first: it may be modified in the journal!
 	 */
 	if (!test_opt(sb, NOLOAD) && ext4_has_feature_journal(sb)) {
-		if (ext4_load_journal(sb, es, journal_devnum))
+		err = ext4_load_journal(sb, es, journal_devnum);
+		if (err)
 			goto failed_mount3a;
 	} else if (test_opt(sb, NOLOAD) && !(sb->s_flags & MS_RDONLY) &&
 		   ext4_has_feature_journal_needs_recovery(sb)) {
@@ -3945,7 +4040,9 @@ no_journal:
 
 	if (___ratelimit(&ext4_mount_msg_ratelimit, "EXT4-fs mount"))
 		ext4_msg(sb, KERN_INFO, "mounted filesystem with%s. "
-			 "Opts: %s%s%s", descr, sbi->s_es->s_mount_opts,
+			 "Opts: %.*s%s%s", descr,
+			 (int) sizeof(sbi->s_es->s_mount_opts),
+			 sbi->s_es->s_mount_opts,
 			 *sbi->s_es->s_mount_opts ? "; " : "", orig_data);
 
 	if (es->s_error_count)
@@ -4015,8 +4112,8 @@ failed_mount:
 out_fail:
 	sb->s_fs_info = NULL;
 	kfree(sbi->s_blockgroup_lock);
+out_free_base:
 	kfree(sbi);
-out_free_orig:
 	kfree(orig_data);
 	return err ? err : ret;
 }
@@ -4936,6 +5033,20 @@ static int ext4_quota_on_mount(struct su
 					EXT4_SB(sb)->s_jquota_fmt, type);
 }
 
+static void lockdep_set_quota_inode(struct inode *inode, int subclass)
+{
+	struct ext4_inode_info *ei = EXT4_I(inode);
+
+	/* The first argument of lockdep_set_subclass has to be
+	 * *exactly* the same as the argument to init_rwsem() --- in
+	 * this case, in init_once() --- or lockdep gets unhappy
+	 * because the name of the lock is set using the
+	 * stringification of the argument to init_rwsem().
+	 */
+	(void) ei;	/* shut up clang warning if !CONFIG_LOCKDEP */
+	lockdep_set_subclass(&ei->i_data_sem, subclass);
+}
+
 /*
  * Standard function to be called on quota_on
  */
@@ -4975,8 +5086,12 @@ static int ext4_quota_on(struct super_bl
 		if (err)
 			return err;
 	}
-
-	return dquot_quota_on(sb, type, format_id, path);
+	lockdep_set_quota_inode(path->dentry->d_inode, I_DATA_SEM_QUOTA);
+	err = dquot_quota_on(sb, type, format_id, path);
+	if (err)
+		lockdep_set_quota_inode(path->dentry->d_inode,
+					     I_DATA_SEM_NORMAL);
+	return err;
 }
 
 static int ext4_quota_enable(struct super_block *sb, int type, int format_id,
@@ -5002,8 +5117,11 @@ static int ext4_quota_enable(struct supe
 
 	/* Don't account quota for quota files to avoid recursion */
 	qf_inode->i_flags |= S_NOQUOTA;
+	lockdep_set_quota_inode(qf_inode, I_DATA_SEM_QUOTA);
 	err = dquot_enable(qf_inode, type, format_id, flags);
 	iput(qf_inode);
+	if (err)
+		lockdep_set_quota_inode(qf_inode, I_DATA_SEM_NORMAL);
 
 	return err;
 }
@@ -5023,6 +5141,9 @@ static int ext4_enable_quotas(struct sup
 			err = ext4_quota_enable(sb, type, QFMT_VFS_V1,
 						DQUOT_USAGE_ENABLED);
 			if (err) {
+				for (type--; type >= 0; type--)
+					dquot_quota_off(sb, type);
+
 				ext4_warning(sb,
 					"Failed to enable quota tracking "
 					"(type=%d, err=%d). Please run "
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ext4/sysfs.c linux-libre-4.4.107-gnu/fs/ext4/sysfs.c
--- linux-libre-4.4-gnu/fs/ext4/sysfs.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/ext4/sysfs.c	2017-12-20 04:05:01.000000000 -0500
@@ -100,7 +100,7 @@ static ssize_t reserved_clusters_store(s
 	int ret;
 
 	ret = kstrtoull(skip_spaces(buf), 0, &val);
-	if (!ret || val >= clusters)
+	if (ret || val >= clusters)
 		return -EINVAL;
 
 	atomic64_set(&sbi->s_resv_clusters, val);
@@ -223,14 +223,18 @@ static struct attribute *ext4_attrs[] =
 EXT4_ATTR_FEATURE(lazy_itable_init);
 EXT4_ATTR_FEATURE(batched_discard);
 EXT4_ATTR_FEATURE(meta_bg_resize);
+#ifdef CONFIG_EXT4_FS_ENCRYPTION
 EXT4_ATTR_FEATURE(encryption);
+#endif
 EXT4_ATTR_FEATURE(metadata_csum_seed);
 
 static struct attribute *ext4_feat_attrs[] = {
 	ATTR_LIST(lazy_itable_init),
 	ATTR_LIST(batched_discard),
 	ATTR_LIST(meta_bg_resize),
+#ifdef CONFIG_EXT4_FS_ENCRYPTION
 	ATTR_LIST(encryption),
+#endif
 	ATTR_LIST(metadata_csum_seed),
 	NULL,
 };
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ext4/truncate.h linux-libre-4.4.107-gnu/fs/ext4/truncate.h
--- linux-libre-4.4-gnu/fs/ext4/truncate.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/ext4/truncate.h	2017-12-20 04:05:01.000000000 -0500
@@ -10,8 +10,10 @@
  */
 static inline void ext4_truncate_failed_write(struct inode *inode)
 {
+	down_write(&EXT4_I(inode)->i_mmap_sem);
 	truncate_inode_pages(inode->i_mapping, inode->i_size);
 	ext4_truncate(inode);
+	up_write(&EXT4_I(inode)->i_mmap_sem);
 }
 
 /*
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ext4/xattr.c linux-libre-4.4.107-gnu/fs/ext4/xattr.c
--- linux-libre-4.4-gnu/fs/ext4/xattr.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/ext4/xattr.c	2017-12-20 04:05:01.000000000 -0500
@@ -123,17 +123,18 @@ static __le32 ext4_xattr_block_csum(stru
 {
 	struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb);
 	__u32 csum;
-	__le32 save_csum;
 	__le64 dsk_block_nr = cpu_to_le64(block_nr);
+	__u32 dummy_csum = 0;
+	int offset = offsetof(struct ext4_xattr_header, h_checksum);
 
-	save_csum = hdr->h_checksum;
-	hdr->h_checksum = 0;
 	csum = ext4_chksum(sbi, sbi->s_csum_seed, (__u8 *)&dsk_block_nr,
 			   sizeof(dsk_block_nr));
-	csum = ext4_chksum(sbi, csum, (__u8 *)hdr,
-			   EXT4_BLOCK_SIZE(inode->i_sb));
+	csum = ext4_chksum(sbi, csum, (__u8 *)hdr, offset);
+	csum = ext4_chksum(sbi, csum, (__u8 *)&dummy_csum, sizeof(dummy_csum));
+	offset += sizeof(dummy_csum);
+	csum = ext4_chksum(sbi, csum, (__u8 *)hdr + offset,
+			   EXT4_BLOCK_SIZE(inode->i_sb) - offset);
 
-	hdr->h_checksum = save_csum;
 	return cpu_to_le32(csum);
 }
 
@@ -232,6 +233,27 @@ ext4_xattr_check_block(struct inode *ino
 	return error;
 }
 
+static int
+__xattr_check_inode(struct inode *inode, struct ext4_xattr_ibody_header *header,
+			 void *end, const char *function, unsigned int line)
+{
+	struct ext4_xattr_entry *entry = IFIRST(header);
+	int error = -EFSCORRUPTED;
+
+	if (((void *) header >= end) ||
+	    (header->h_magic != le32_to_cpu(EXT4_XATTR_MAGIC)))
+		goto errout;
+	error = ext4_xattr_check_names(entry, end, entry);
+errout:
+	if (error)
+		__ext4_error_inode(inode, function, line, 0,
+				   "corrupted in-inode xattr");
+	return error;
+}
+
+#define xattr_check_inode(inode, header, end) \
+	__xattr_check_inode((inode), (header), (end), __func__, __LINE__)
+
 static inline int
 ext4_xattr_check_entry(struct ext4_xattr_entry *entry, size_t size)
 {
@@ -343,7 +365,7 @@ ext4_xattr_ibody_get(struct inode *inode
 	header = IHDR(inode, raw_inode);
 	entry = IFIRST(header);
 	end = (void *)raw_inode + EXT4_SB(inode->i_sb)->s_inode_size;
-	error = ext4_xattr_check_names(entry, end, entry);
+	error = xattr_check_inode(inode, header, end);
 	if (error)
 		goto cleanup;
 	error = ext4_xattr_find_entry(&entry, name_index, name,
@@ -474,7 +496,7 @@ ext4_xattr_ibody_list(struct dentry *den
 	raw_inode = ext4_raw_inode(&iloc);
 	header = IHDR(inode, raw_inode);
 	end = (void *)raw_inode + EXT4_SB(inode->i_sb)->s_inode_size;
-	error = ext4_xattr_check_names(IFIRST(header), end, IFIRST(header));
+	error = xattr_check_inode(inode, header, end);
 	if (error)
 		goto cleanup;
 	error = ext4_xattr_list_entries(dentry, IFIRST(header),
@@ -990,8 +1012,7 @@ int ext4_xattr_ibody_find(struct inode *
 	is->s.here = is->s.first;
 	is->s.end = (void *)raw_inode + EXT4_SB(inode->i_sb)->s_inode_size;
 	if (ext4_test_inode_state(inode, EXT4_STATE_XATTR)) {
-		error = ext4_xattr_check_names(IFIRST(header), is->s.end,
-					       IFIRST(header));
+		error = xattr_check_inode(inode, header, is->s.end);
 		if (error)
 			return error;
 		/* Find the named attribute. */
@@ -1264,15 +1285,19 @@ int ext4_expand_extra_isize_ea(struct in
 	size_t min_offs, free;
 	int total_ino;
 	void *base, *start, *end;
-	int extra_isize = 0, error = 0, tried_min_extra_isize = 0;
+	int error = 0, tried_min_extra_isize = 0;
 	int s_min_extra_isize = le16_to_cpu(EXT4_SB(inode->i_sb)->s_es->s_min_extra_isize);
+	int isize_diff;	/* How much do we need to grow i_extra_isize */
 
 	down_write(&EXT4_I(inode)->xattr_sem);
+	/*
+	 * Set EXT4_STATE_NO_EXPAND to avoid recursion when marking inode dirty
+	 */
+	ext4_set_inode_state(inode, EXT4_STATE_NO_EXPAND);
 retry:
-	if (EXT4_I(inode)->i_extra_isize >= new_extra_isize) {
-		up_write(&EXT4_I(inode)->xattr_sem);
-		return 0;
-	}
+	isize_diff = new_extra_isize - EXT4_I(inode)->i_extra_isize;
+	if (EXT4_I(inode)->i_extra_isize >= new_extra_isize)
+		goto out;
 
 	header = IHDR(inode, raw_inode);
 	entry = IFIRST(header);
@@ -1288,8 +1313,12 @@ retry:
 	last = entry;
 	total_ino = sizeof(struct ext4_xattr_ibody_header);
 
+	error = xattr_check_inode(inode, header, end);
+	if (error)
+		goto cleanup;
+
 	free = ext4_xattr_free_space(last, &min_offs, base, &total_ino);
-	if (free >= new_extra_isize) {
+	if (free >= isize_diff) {
 		entry = IFIRST(header);
 		ext4_xattr_shift_entries(entry,	EXT4_I(inode)->i_extra_isize
 				- new_extra_isize, (void *)raw_inode +
@@ -1297,8 +1326,7 @@ retry:
 				(void *)header, total_ino,
 				inode->i_sb->s_blocksize);
 		EXT4_I(inode)->i_extra_isize = new_extra_isize;
-		error = 0;
-		goto cleanup;
+		goto out;
 	}
 
 	/*
@@ -1321,7 +1349,7 @@ retry:
 		end = bh->b_data + bh->b_size;
 		min_offs = end - base;
 		free = ext4_xattr_free_space(first, &min_offs, base, NULL);
-		if (free < new_extra_isize) {
+		if (free < isize_diff) {
 			if (!tried_min_extra_isize && s_min_extra_isize) {
 				tried_min_extra_isize++;
 				new_extra_isize = s_min_extra_isize;
@@ -1335,7 +1363,7 @@ retry:
 		free = inode->i_sb->s_blocksize;
 	}
 
-	while (new_extra_isize > 0) {
+	while (isize_diff > 0) {
 		size_t offs, size, entry_size;
 		struct ext4_xattr_entry *small_entry = NULL;
 		struct ext4_xattr_info i = {
@@ -1366,7 +1394,7 @@ retry:
 			EXT4_XATTR_SIZE(le32_to_cpu(last->e_value_size)) +
 					EXT4_XATTR_LEN(last->e_name_len);
 			if (total_size <= free && total_size < min_total_size) {
-				if (total_size < new_extra_isize) {
+				if (total_size < isize_diff) {
 					small_entry = last;
 				} else {
 					entry = last;
@@ -1421,22 +1449,22 @@ retry:
 		error = ext4_xattr_ibody_set(handle, inode, &i, is);
 		if (error)
 			goto cleanup;
+		total_ino -= entry_size;
 
 		entry = IFIRST(header);
-		if (entry_size + EXT4_XATTR_SIZE(size) >= new_extra_isize)
-			shift_bytes = new_extra_isize;
+		if (entry_size + EXT4_XATTR_SIZE(size) >= isize_diff)
+			shift_bytes = isize_diff;
 		else
-			shift_bytes = entry_size + size;
+			shift_bytes = entry_size + EXT4_XATTR_SIZE(size);
 		/* Adjust the offsets and shift the remaining entries ahead */
-		ext4_xattr_shift_entries(entry, EXT4_I(inode)->i_extra_isize -
-			shift_bytes, (void *)raw_inode +
-			EXT4_GOOD_OLD_INODE_SIZE + extra_isize + shift_bytes,
-			(void *)header, total_ino - entry_size,
-			inode->i_sb->s_blocksize);
+		ext4_xattr_shift_entries(entry, -shift_bytes,
+			(void *)raw_inode + EXT4_GOOD_OLD_INODE_SIZE +
+			EXT4_I(inode)->i_extra_isize + shift_bytes,
+			(void *)header, total_ino, inode->i_sb->s_blocksize);
 
-		extra_isize += shift_bytes;
-		new_extra_isize -= shift_bytes;
-		EXT4_I(inode)->i_extra_isize = extra_isize;
+		isize_diff -= shift_bytes;
+		EXT4_I(inode)->i_extra_isize += shift_bytes;
+		header = IHDR(inode, raw_inode);
 
 		i.name = b_entry_name;
 		i.value = buffer;
@@ -1458,6 +1486,8 @@ retry:
 		kfree(bs);
 	}
 	brelse(bh);
+out:
+	ext4_clear_inode_state(inode, EXT4_STATE_NO_EXPAND);
 	up_write(&EXT4_I(inode)->xattr_sem);
 	return 0;
 
@@ -1469,6 +1499,10 @@ cleanup:
 	kfree(is);
 	kfree(bs);
 	brelse(bh);
+	/*
+	 * We deliberately leave EXT4_STATE_NO_EXPAND set here since inode
+	 * size expansion failed.
+	 */
 	up_write(&EXT4_I(inode)->xattr_sem);
 	return error;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/f2fs/acl.c linux-libre-4.4.107-gnu/fs/f2fs/acl.c
--- linux-libre-4.4-gnu/fs/f2fs/acl.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/f2fs/acl.c	2017-12-20 04:05:01.000000000 -0500
@@ -213,13 +213,11 @@ static int __f2fs_set_acl(struct inode *
 	switch (type) {
 	case ACL_TYPE_ACCESS:
 		name_index = F2FS_XATTR_INDEX_POSIX_ACL_ACCESS;
-		if (acl) {
-			error = posix_acl_equiv_mode(acl, &inode->i_mode);
-			if (error < 0)
+		if (acl && !ipage) {
+			error = posix_acl_update_mode(inode, &inode->i_mode, &acl);
+			if (error)
 				return error;
 			set_acl_inode(fi, inode->i_mode);
-			if (error == 0)
-				acl = NULL;
 		}
 		break;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/f2fs/crypto.c linux-libre-4.4.107-gnu/fs/f2fs/crypto.c
--- linux-libre-4.4-gnu/fs/f2fs/crypto.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/f2fs/crypto.c	2017-12-20 04:05:01.000000000 -0500
@@ -362,7 +362,6 @@ static int f2fs_page_crypto(struct f2fs_
 	else
 		res = crypto_ablkcipher_encrypt(req);
 	if (res == -EINPROGRESS || res == -EBUSY) {
-		BUG_ON(req->base.data != &ecr);
 		wait_for_completion(&ecr.completion);
 		res = ecr.res;
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/f2fs/crypto_fname.c linux-libre-4.4.107-gnu/fs/f2fs/crypto_fname.c
--- linux-libre-4.4-gnu/fs/f2fs/crypto_fname.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/f2fs/crypto_fname.c	2017-12-20 04:05:01.000000000 -0500
@@ -124,7 +124,6 @@ static int f2fs_fname_encrypt(struct ino
 	ablkcipher_request_set_crypt(req, &src_sg, &dst_sg, ciphertext_len, iv);
 	res = crypto_ablkcipher_encrypt(req);
 	if (res == -EINPROGRESS || res == -EBUSY) {
-		BUG_ON(req->base.data != &ecr);
 		wait_for_completion(&ecr.completion);
 		res = ecr.res;
 	}
@@ -180,7 +179,6 @@ static int f2fs_fname_decrypt(struct ino
 	ablkcipher_request_set_crypt(req, &src_sg, &dst_sg, iname->len, iv);
 	res = crypto_ablkcipher_decrypt(req);
 	if (res == -EINPROGRESS || res == -EBUSY) {
-		BUG_ON(req->base.data != &ecr);
 		wait_for_completion(&ecr.completion);
 		res = ecr.res;
 	}
@@ -333,7 +331,7 @@ int f2fs_fname_disk_to_usr(struct inode
 		memset(buf + 4, 0, 4);
 	} else
 		memset(buf, 0, 8);
-	memcpy(buf + 8, iname->name + iname->len - 16, 16);
+	memcpy(buf + 8, iname->name + ((iname->len - 17) & ~15), 16);
 	oname->name[0] = '_';
 	ret = digest_encode(buf, 24, oname->name + 1);
 	oname->len = ret + 1;
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/f2fs/crypto_key.c linux-libre-4.4.107-gnu/fs/f2fs/crypto_key.c
--- linux-libre-4.4-gnu/fs/f2fs/crypto_key.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/f2fs/crypto_key.c	2017-12-20 04:05:01.000000000 -0500
@@ -75,7 +75,6 @@ static int f2fs_derive_key_aes(char deri
 					F2FS_AES_256_XTS_KEY_SIZE, NULL);
 	res = crypto_ablkcipher_encrypt(req);
 	if (res == -EINPROGRESS || res == -EBUSY) {
-		BUG_ON(req->base.data != &ecr);
 		wait_for_completion(&ecr.completion);
 		res = ecr.res;
 	}
@@ -92,7 +91,6 @@ static void f2fs_free_crypt_info(struct
 	if (!ci)
 		return;
 
-	key_put(ci->ci_keyring_key);
 	crypto_free_ablkcipher(ci->ci_ctfm);
 	kmem_cache_free(f2fs_crypt_info_cachep, ci);
 }
@@ -113,7 +111,7 @@ void f2fs_free_encryption_info(struct in
 	f2fs_free_crypt_info(ci);
 }
 
-int _f2fs_get_encryption_info(struct inode *inode)
+int f2fs_get_encryption_info(struct inode *inode)
 {
 	struct f2fs_inode_info *fi = F2FS_I(inode);
 	struct f2fs_crypt_info *crypt_info;
@@ -129,18 +127,12 @@ int _f2fs_get_encryption_info(struct ino
 	char mode;
 	int res;
 
+	if (fi->i_crypt_info)
+		return 0;
+
 	res = f2fs_crypto_initialize();
 	if (res)
 		return res;
-retry:
-	crypt_info = ACCESS_ONCE(fi->i_crypt_info);
-	if (crypt_info) {
-		if (!crypt_info->ci_keyring_key ||
-				key_validate(crypt_info->ci_keyring_key) == 0)
-			return 0;
-		f2fs_free_encryption_info(inode, crypt_info);
-		goto retry;
-	}
 
 	res = f2fs_getxattr(inode, F2FS_XATTR_INDEX_ENCRYPTION,
 				F2FS_XATTR_NAME_ENCRYPTION_CONTEXT,
@@ -159,7 +151,6 @@ retry:
 	crypt_info->ci_data_mode = ctx.contents_encryption_mode;
 	crypt_info->ci_filename_mode = ctx.filenames_encryption_mode;
 	crypt_info->ci_ctfm = NULL;
-	crypt_info->ci_keyring_key = NULL;
 	memcpy(crypt_info->ci_master_key, ctx.master_key_descriptor,
 				sizeof(crypt_info->ci_master_key));
 	if (S_ISREG(inode->i_mode))
@@ -197,19 +188,38 @@ retry:
 		keyring_key = NULL;
 		goto out;
 	}
-	crypt_info->ci_keyring_key = keyring_key;
-	BUG_ON(keyring_key->type != &key_type_logon);
+	if (keyring_key->type != &key_type_logon) {
+		printk_once(KERN_WARNING "f2fs: key type must be logon\n");
+		res = -ENOKEY;
+		goto out;
+	}
+	down_read(&keyring_key->sem);
 	ukp = user_key_payload(keyring_key);
+	if (!ukp) {
+		/* key was revoked before we acquired its semaphore */
+		res = -EKEYREVOKED;
+		up_read(&keyring_key->sem);
+		goto out;
+	}
 	if (ukp->datalen != sizeof(struct f2fs_encryption_key)) {
 		res = -EINVAL;
+		up_read(&keyring_key->sem);
 		goto out;
 	}
 	master_key = (struct f2fs_encryption_key *)ukp->data;
 	BUILD_BUG_ON(F2FS_AES_128_ECB_KEY_SIZE !=
 				F2FS_KEY_DERIVATION_NONCE_SIZE);
-	BUG_ON(master_key->size != F2FS_AES_256_XTS_KEY_SIZE);
+	if (master_key->size != F2FS_AES_256_XTS_KEY_SIZE) {
+		printk_once(KERN_WARNING
+				"f2fs: key size incorrect: %d\n",
+				master_key->size);
+		res = -ENOKEY;
+		up_read(&keyring_key->sem);
+		goto out;
+	}
 	res = f2fs_derive_key_aes(ctx.nonce, master_key->raw,
 				  raw_key);
+	up_read(&keyring_key->sem);
 	if (res)
 		goto out;
 
@@ -230,17 +240,12 @@ retry:
 	if (res)
 		goto out;
 
-	memzero_explicit(raw_key, sizeof(raw_key));
-	if (cmpxchg(&fi->i_crypt_info, NULL, crypt_info) != NULL) {
-		f2fs_free_crypt_info(crypt_info);
-		goto retry;
-	}
-	return 0;
-
+	if (cmpxchg(&fi->i_crypt_info, NULL, crypt_info) == NULL)
+		crypt_info = NULL;
 out:
 	if (res == -ENOKEY && !S_ISREG(inode->i_mode))
 		res = 0;
-
+	key_put(keyring_key);
 	f2fs_free_crypt_info(crypt_info);
 	memzero_explicit(raw_key, sizeof(raw_key));
 	return res;
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/f2fs/crypto_policy.c linux-libre-4.4.107-gnu/fs/f2fs/crypto_policy.c
--- linux-libre-4.4-gnu/fs/f2fs/crypto_policy.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/f2fs/crypto_policy.c	2017-12-20 04:05:01.000000000 -0500
@@ -89,6 +89,9 @@ static int f2fs_create_encryption_contex
 int f2fs_process_policy(const struct f2fs_encryption_policy *policy,
 			struct inode *inode)
 {
+	if (!inode_owner_or_capable(inode))
+		return -EACCES;
+
 	if (policy->version != 0)
 		return -EINVAL;
 
@@ -138,20 +141,38 @@ int f2fs_get_policy(struct inode *inode,
 int f2fs_is_child_context_consistent_with_parent(struct inode *parent,
 						struct inode *child)
 {
-	struct f2fs_crypt_info *parent_ci, *child_ci;
+	const struct f2fs_crypt_info *parent_ci, *child_ci;
+	struct f2fs_encryption_context parent_ctx, child_ctx;
 	int res;
 
-	if ((parent == NULL) || (child == NULL)) {
-		pr_err("parent %p child %p\n", parent, child);
-		BUG_ON(1);
-	}
+	/* No restrictions on file types which are never encrypted */
+	if (!S_ISREG(child->i_mode) && !S_ISDIR(child->i_mode) &&
+	    !S_ISLNK(child->i_mode))
+		return 1;
 
-	/* no restrictions if the parent directory is not encrypted */
+	/* No restrictions if the parent directory is unencrypted */
 	if (!f2fs_encrypted_inode(parent))
 		return 1;
-	/* if the child directory is not encrypted, this is always a problem */
+
+	/* Encrypted directories must not contain unencrypted files */
 	if (!f2fs_encrypted_inode(child))
 		return 0;
+
+	/*
+	 * Both parent and child are encrypted, so verify they use the same
+	 * encryption policy.  Compare the fscrypt_info structs if the keys are
+	 * available, otherwise retrieve and compare the fscrypt_contexts.
+	 *
+	 * Note that the fscrypt_context retrieval will be required frequently
+	 * when accessing an encrypted directory tree without the key.
+	 * Performance-wise this is not a big deal because we already don't
+	 * really optimize for file access without the key (to the extent that
+	 * such access is even possible), given that any attempted access
+	 * already causes a fscrypt_context retrieval and keyring search.
+	 *
+	 * In any case, if an unexpected error occurs, fall back to "forbidden".
+	 */
+
 	res = f2fs_get_encryption_info(parent);
 	if (res)
 		return 0;
@@ -160,17 +181,35 @@ int f2fs_is_child_context_consistent_wit
 		return 0;
 	parent_ci = F2FS_I(parent)->i_crypt_info;
 	child_ci = F2FS_I(child)->i_crypt_info;
-	if (!parent_ci && !child_ci)
-		return 1;
-	if (!parent_ci || !child_ci)
+	if (parent_ci && child_ci) {
+		return memcmp(parent_ci->ci_master_key, child_ci->ci_master_key,
+			      F2FS_KEY_DESCRIPTOR_SIZE) == 0 &&
+			(parent_ci->ci_data_mode == child_ci->ci_data_mode) &&
+			(parent_ci->ci_filename_mode ==
+			 child_ci->ci_filename_mode) &&
+			(parent_ci->ci_flags == child_ci->ci_flags);
+	}
+
+	res = f2fs_getxattr(parent, F2FS_XATTR_INDEX_ENCRYPTION,
+			    F2FS_XATTR_NAME_ENCRYPTION_CONTEXT,
+			    &parent_ctx, sizeof(parent_ctx), NULL);
+	if (res != sizeof(parent_ctx))
 		return 0;
 
-	return (memcmp(parent_ci->ci_master_key,
-			child_ci->ci_master_key,
-			F2FS_KEY_DESCRIPTOR_SIZE) == 0 &&
-		(parent_ci->ci_data_mode == child_ci->ci_data_mode) &&
-		(parent_ci->ci_filename_mode == child_ci->ci_filename_mode) &&
-		(parent_ci->ci_flags == child_ci->ci_flags));
+	res = f2fs_getxattr(child, F2FS_XATTR_INDEX_ENCRYPTION,
+			    F2FS_XATTR_NAME_ENCRYPTION_CONTEXT,
+			    &child_ctx, sizeof(child_ctx), NULL);
+	if (res != sizeof(child_ctx))
+		return 0;
+
+	return memcmp(parent_ctx.master_key_descriptor,
+		      child_ctx.master_key_descriptor,
+		      F2FS_KEY_DESCRIPTOR_SIZE) == 0 &&
+		(parent_ctx.contents_encryption_mode ==
+		 child_ctx.contents_encryption_mode) &&
+		(parent_ctx.filenames_encryption_mode ==
+		 child_ctx.filenames_encryption_mode) &&
+		(parent_ctx.flags == child_ctx.flags);
 }
 
 /**
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/f2fs/data.c linux-libre-4.4.107-gnu/fs/f2fs/data.c
--- linux-libre-4.4-gnu/fs/f2fs/data.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/f2fs/data.c	2017-12-20 04:05:01.000000000 -0500
@@ -1416,7 +1416,12 @@ static int f2fs_write_begin(struct file
 			goto fail;
 	}
 repeat:
-	page = grab_cache_page_write_begin(mapping, index, flags);
+	/*
+	 * Do not use grab_cache_page_write_begin() to avoid deadlock due to
+	 * wait_for_stable_page. Will wait that below with our IO control.
+	 */
+	page = pagecache_get_page(mapping, index,
+				FGP_LOCK | FGP_WRITE | FGP_CREAT, GFP_NOFS);
 	if (!page) {
 		err = -ENOMEM;
 		goto fail;
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/f2fs/debug.c linux-libre-4.4.107-gnu/fs/f2fs/debug.c
--- linux-libre-4.4-gnu/fs/f2fs/debug.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/f2fs/debug.c	2017-12-20 04:05:01.000000000 -0500
@@ -352,6 +352,7 @@ static int stat_open(struct inode *inode
 }
 
 static const struct file_operations stat_fops = {
+	.owner = THIS_MODULE,
 	.open = stat_open,
 	.read = seq_read,
 	.llseek = seq_lseek,
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/f2fs/dir.c linux-libre-4.4.107-gnu/fs/f2fs/dir.c
--- linux-libre-4.4-gnu/fs/f2fs/dir.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/f2fs/dir.c	2017-12-20 04:05:01.000000000 -0500
@@ -124,19 +124,29 @@ struct f2fs_dir_entry *find_target_dentr
 
 		de = &d->dentry[bit_pos];
 
-		/* encrypted case */
+		if (de->hash_code != namehash)
+			goto not_match;
+
 		de_name.name = d->filename[bit_pos];
 		de_name.len = le16_to_cpu(de->name_len);
 
-		/* show encrypted name */
-		if (fname->hash) {
-			if (de->hash_code == fname->hash)
-				goto found;
-		} else if (de_name.len == name->len &&
-			de->hash_code == namehash &&
-			!memcmp(de_name.name, name->name, name->len))
+#ifdef CONFIG_F2FS_FS_ENCRYPTION
+		if (unlikely(!name->name)) {
+			if (fname->usr_fname->name[0] == '_') {
+				if (de_name.len > 32 &&
+					!memcmp(de_name.name + ((de_name.len - 17) & ~15),
+						fname->crypto_buf.name + 8, 16))
+					goto found;
+				goto not_match;
+			}
+			name->name = fname->crypto_buf.name;
+			name->len = fname->crypto_buf.len;
+		}
+#endif
+		if (de_name.len == name->len &&
+				!memcmp(de_name.name, name->name, name->len))
 			goto found;
-
+not_match:
 		if (max_slots && max_len > *max_slots)
 			*max_slots = max_len;
 		max_len = 0;
@@ -170,7 +180,7 @@ static struct f2fs_dir_entry *find_in_le
 	int max_slots;
 	f2fs_hash_t namehash;
 
-	namehash = f2fs_dentry_hash(&name);
+	namehash = f2fs_dentry_hash(&name, fname);
 
 	f2fs_bug_on(F2FS_I_SB(dir), level > MAX_DIR_HASH_DEPTH);
 
@@ -547,7 +557,7 @@ int __f2fs_add_link(struct inode *dir, c
 
 	level = 0;
 	slots = GET_DENTRY_SLOTS(new_name.len);
-	dentry_hash = f2fs_dentry_hash(&new_name);
+	dentry_hash = f2fs_dentry_hash(&new_name, NULL);
 
 	current_depth = F2FS_I(dir)->i_current_depth;
 	if (F2FS_I(dir)->chash == dentry_hash) {
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/f2fs/f2fs_crypto.h linux-libre-4.4.107-gnu/fs/f2fs/f2fs_crypto.h
--- linux-libre-4.4-gnu/fs/f2fs/f2fs_crypto.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/f2fs/f2fs_crypto.h	2017-12-20 04:05:01.000000000 -0500
@@ -79,7 +79,6 @@ struct f2fs_crypt_info {
 	char		ci_filename_mode;
 	char		ci_flags;
 	struct crypto_ablkcipher *ci_ctfm;
-	struct key	*ci_keyring_key;
 	char		ci_master_key[F2FS_KEY_DESCRIPTOR_SIZE];
 };
 
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/f2fs/f2fs.h linux-libre-4.4.107-gnu/fs/f2fs/f2fs.h
--- linux-libre-4.4-gnu/fs/f2fs/f2fs.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/f2fs/f2fs.h	2017-12-20 04:05:01.000000000 -0500
@@ -1722,7 +1722,8 @@ void f2fs_msg(struct super_block *, cons
 /*
  * hash.c
  */
-f2fs_hash_t f2fs_dentry_hash(const struct qstr *);
+f2fs_hash_t f2fs_dentry_hash(const struct qstr *name_info,
+				struct f2fs_filename *fname);
 
 /*
  * node.c
@@ -2149,7 +2150,6 @@ void f2fs_end_io_crypto_work(struct f2fs
 
 /* crypto_key.c */
 void f2fs_free_encryption_info(struct inode *, struct f2fs_crypt_info *);
-int _f2fs_get_encryption_info(struct inode *inode);
 
 /* crypto_fname.c */
 bool f2fs_valid_filenames_enc_mode(uint32_t);
@@ -2170,18 +2170,7 @@ void f2fs_exit_crypto(void);
 
 int f2fs_has_encryption_key(struct inode *);
 
-static inline int f2fs_get_encryption_info(struct inode *inode)
-{
-	struct f2fs_crypt_info *ci = F2FS_I(inode)->i_crypt_info;
-
-	if (!ci ||
-		(ci->ci_keyring_key &&
-		 (ci->ci_keyring_key->flags & ((1 << KEY_FLAG_INVALIDATED) |
-					       (1 << KEY_FLAG_REVOKED) |
-					       (1 << KEY_FLAG_DEAD)))))
-		return _f2fs_get_encryption_info(inode);
-	return 0;
-}
+int f2fs_get_encryption_info(struct inode *inode);
 
 void f2fs_fname_crypto_free_buffer(struct f2fs_str *);
 int f2fs_fname_setup_filename(struct inode *, const struct qstr *,
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/f2fs/file.c linux-libre-4.4.107-gnu/fs/f2fs/file.c
--- linux-libre-4.4-gnu/fs/f2fs/file.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/f2fs/file.c	2017-12-20 04:05:01.000000000 -0500
@@ -1535,12 +1535,25 @@ static int f2fs_ioc_set_encryption_polic
 #ifdef CONFIG_F2FS_FS_ENCRYPTION
 	struct f2fs_encryption_policy policy;
 	struct inode *inode = file_inode(filp);
+	int err;
 
 	if (copy_from_user(&policy, (struct f2fs_encryption_policy __user *)arg,
 				sizeof(policy)))
 		return -EFAULT;
 
-	return f2fs_process_policy(&policy, inode);
+	err = mnt_want_write_file(filp);
+	if (err)
+		return err;
+
+	mutex_lock(&inode->i_mutex);
+
+	err = f2fs_process_policy(&policy, inode);
+
+	mutex_unlock(&inode->i_mutex);
+
+	mnt_drop_write_file(filp);
+
+	return err;
 #else
 	return -EOPNOTSUPP;
 #endif
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/f2fs/hash.c linux-libre-4.4.107-gnu/fs/f2fs/hash.c
--- linux-libre-4.4-gnu/fs/f2fs/hash.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/f2fs/hash.c	2017-12-20 04:05:01.000000000 -0500
@@ -70,7 +70,8 @@ static void str2hashbuf(const unsigned c
 		*buf++ = pad;
 }
 
-f2fs_hash_t f2fs_dentry_hash(const struct qstr *name_info)
+f2fs_hash_t f2fs_dentry_hash(const struct qstr *name_info,
+				struct f2fs_filename *fname)
 {
 	__u32 hash;
 	f2fs_hash_t f2fs_hash;
@@ -79,6 +80,10 @@ f2fs_hash_t f2fs_dentry_hash(const struc
 	const unsigned char *name = name_info->name;
 	size_t len = name_info->len;
 
+	/* encrypted bigname case */
+	if (fname && !fname->disk_name.name)
+		return cpu_to_le32(fname->hash);
+
 	if (is_dot_dotdot(name_info))
 		return 0;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/f2fs/inline.c linux-libre-4.4.107-gnu/fs/f2fs/inline.c
--- linux-libre-4.4-gnu/fs/f2fs/inline.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/f2fs/inline.c	2017-12-20 04:05:01.000000000 -0500
@@ -303,7 +303,7 @@ struct f2fs_dir_entry *find_in_inline_di
 	if (IS_ERR(ipage))
 		return NULL;
 
-	namehash = f2fs_dentry_hash(&name);
+	namehash = f2fs_dentry_hash(&name, fname);
 
 	inline_dentry = inline_data_addr(ipage);
 
@@ -468,7 +468,7 @@ int f2fs_add_inline_entry(struct inode *
 
 	f2fs_wait_on_page_writeback(ipage, NODE);
 
-	name_hash = f2fs_dentry_hash(name);
+	name_hash = f2fs_dentry_hash(name, NULL);
 	make_dentry_ptr(NULL, &d, (void *)dentry_blk, 2);
 	f2fs_update_dentry(ino, mode, &d, name, name_hash, bit_pos);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/f2fs/recovery.c linux-libre-4.4.107-gnu/fs/f2fs/recovery.c
--- linux-libre-4.4-gnu/fs/f2fs/recovery.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/f2fs/recovery.c	2017-12-20 04:05:01.000000000 -0500
@@ -276,7 +276,7 @@ static int check_index_in_prev_nodes(str
 		return 0;
 
 	/* Get the previous summary */
-	for (i = CURSEG_WARM_DATA; i <= CURSEG_COLD_DATA; i++) {
+	for (i = CURSEG_HOT_DATA; i <= CURSEG_COLD_DATA; i++) {
 		struct curseg_info *curseg = CURSEG_I(sbi, i);
 		if (curseg->segno == segno) {
 			sum = curseg->sum_blk->entries[blkoff];
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/f2fs/super.c linux-libre-4.4.107-gnu/fs/f2fs/super.c
--- linux-libre-4.4-gnu/fs/f2fs/super.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/f2fs/super.c	2017-12-20 04:05:01.000000000 -0500
@@ -918,6 +918,79 @@ static loff_t max_file_size(unsigned bit
 	return result;
 }
 
+static inline bool sanity_check_area_boundary(struct super_block *sb,
+					struct f2fs_super_block *raw_super)
+{
+	u32 segment0_blkaddr = le32_to_cpu(raw_super->segment0_blkaddr);
+	u32 cp_blkaddr = le32_to_cpu(raw_super->cp_blkaddr);
+	u32 sit_blkaddr = le32_to_cpu(raw_super->sit_blkaddr);
+	u32 nat_blkaddr = le32_to_cpu(raw_super->nat_blkaddr);
+	u32 ssa_blkaddr = le32_to_cpu(raw_super->ssa_blkaddr);
+	u32 main_blkaddr = le32_to_cpu(raw_super->main_blkaddr);
+	u32 segment_count_ckpt = le32_to_cpu(raw_super->segment_count_ckpt);
+	u32 segment_count_sit = le32_to_cpu(raw_super->segment_count_sit);
+	u32 segment_count_nat = le32_to_cpu(raw_super->segment_count_nat);
+	u32 segment_count_ssa = le32_to_cpu(raw_super->segment_count_ssa);
+	u32 segment_count_main = le32_to_cpu(raw_super->segment_count_main);
+	u32 segment_count = le32_to_cpu(raw_super->segment_count);
+	u32 log_blocks_per_seg = le32_to_cpu(raw_super->log_blocks_per_seg);
+
+	if (segment0_blkaddr != cp_blkaddr) {
+		f2fs_msg(sb, KERN_INFO,
+			"Mismatch start address, segment0(%u) cp_blkaddr(%u)",
+			segment0_blkaddr, cp_blkaddr);
+		return true;
+	}
+
+	if (cp_blkaddr + (segment_count_ckpt << log_blocks_per_seg) !=
+							sit_blkaddr) {
+		f2fs_msg(sb, KERN_INFO,
+			"Wrong CP boundary, start(%u) end(%u) blocks(%u)",
+			cp_blkaddr, sit_blkaddr,
+			segment_count_ckpt << log_blocks_per_seg);
+		return true;
+	}
+
+	if (sit_blkaddr + (segment_count_sit << log_blocks_per_seg) !=
+							nat_blkaddr) {
+		f2fs_msg(sb, KERN_INFO,
+			"Wrong SIT boundary, start(%u) end(%u) blocks(%u)",
+			sit_blkaddr, nat_blkaddr,
+			segment_count_sit << log_blocks_per_seg);
+		return true;
+	}
+
+	if (nat_blkaddr + (segment_count_nat << log_blocks_per_seg) !=
+							ssa_blkaddr) {
+		f2fs_msg(sb, KERN_INFO,
+			"Wrong NAT boundary, start(%u) end(%u) blocks(%u)",
+			nat_blkaddr, ssa_blkaddr,
+			segment_count_nat << log_blocks_per_seg);
+		return true;
+	}
+
+	if (ssa_blkaddr + (segment_count_ssa << log_blocks_per_seg) !=
+							main_blkaddr) {
+		f2fs_msg(sb, KERN_INFO,
+			"Wrong SSA boundary, start(%u) end(%u) blocks(%u)",
+			ssa_blkaddr, main_blkaddr,
+			segment_count_ssa << log_blocks_per_seg);
+		return true;
+	}
+
+	if (main_blkaddr + (segment_count_main << log_blocks_per_seg) !=
+		segment0_blkaddr + (segment_count << log_blocks_per_seg)) {
+		f2fs_msg(sb, KERN_INFO,
+			"Wrong MAIN_AREA boundary, start(%u) end(%u) blocks(%u)",
+			main_blkaddr,
+			segment0_blkaddr + (segment_count << log_blocks_per_seg),
+			segment_count_main << log_blocks_per_seg);
+		return true;
+	}
+
+	return false;
+}
+
 static int sanity_check_raw_super(struct super_block *sb,
 			struct f2fs_super_block *raw_super)
 {
@@ -947,6 +1020,14 @@ static int sanity_check_raw_super(struct
 		return 1;
 	}
 
+	/* check log blocks per segment */
+	if (le32_to_cpu(raw_super->log_blocks_per_seg) != 9) {
+		f2fs_msg(sb, KERN_INFO,
+			"Invalid log blocks per segment (%u)\n",
+			le32_to_cpu(raw_super->log_blocks_per_seg));
+		return 1;
+	}
+
 	/* Currently, support 512/1024/2048/4096 bytes sector size */
 	if (le32_to_cpu(raw_super->log_sectorsize) >
 				F2FS_MAX_LOG_SECTOR_SIZE ||
@@ -965,6 +1046,30 @@ static int sanity_check_raw_super(struct
 			le32_to_cpu(raw_super->log_sectorsize));
 		return 1;
 	}
+
+	/* check reserved ino info */
+	if (le32_to_cpu(raw_super->node_ino) != 1 ||
+		le32_to_cpu(raw_super->meta_ino) != 2 ||
+		le32_to_cpu(raw_super->root_ino) != 3) {
+		f2fs_msg(sb, KERN_INFO,
+			"Invalid Fs Meta Ino: node(%u) meta(%u) root(%u)",
+			le32_to_cpu(raw_super->node_ino),
+			le32_to_cpu(raw_super->meta_ino),
+			le32_to_cpu(raw_super->root_ino));
+		return 1;
+	}
+
+	if (le32_to_cpu(raw_super->segment_count) > F2FS_MAX_SEGMENT) {
+		f2fs_msg(sb, KERN_INFO,
+			"Invalid segment count (%u)",
+			le32_to_cpu(raw_super->segment_count));
+		return 1;
+	}
+
+	/* check CP/SIT/NAT/SSA/MAIN_AREA area boundary */
+	if (sanity_check_area_boundary(sb, raw_super))
+		return 1;
+
 	return 0;
 }
 
@@ -973,6 +1078,8 @@ static int sanity_check_ckpt(struct f2fs
 	unsigned int total, fsmeta;
 	struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi);
 	struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
+	unsigned int main_segs, blocks_per_seg;
+	int i;
 
 	total = le32_to_cpu(raw_super->segment_count);
 	fsmeta = le32_to_cpu(raw_super->segment_count_ckpt);
@@ -984,6 +1091,20 @@ static int sanity_check_ckpt(struct f2fs
 	if (unlikely(fsmeta >= total))
 		return 1;
 
+	main_segs = le32_to_cpu(raw_super->segment_count_main);
+	blocks_per_seg = sbi->blocks_per_seg;
+
+	for (i = 0; i < NR_CURSEG_NODE_TYPE; i++) {
+		if (le32_to_cpu(ckpt->cur_node_segno[i]) >= main_segs ||
+			le16_to_cpu(ckpt->cur_node_blkoff[i]) >= blocks_per_seg)
+			return 1;
+	}
+	for (i = 0; i < NR_CURSEG_DATA_TYPE; i++) {
+		if (le32_to_cpu(ckpt->cur_data_segno[i]) >= main_segs ||
+			le16_to_cpu(ckpt->cur_data_blkoff[i]) >= blocks_per_seg)
+			return 1;
+	}
+
 	if (unlikely(f2fs_cp_error(sbi))) {
 		f2fs_msg(sbi->sb, KERN_ERR, "A bug case: need to run fsck");
 		return 1;
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/fat/inode.c linux-libre-4.4.107-gnu/fs/fat/inode.c
--- linux-libre-4.4-gnu/fs/fat/inode.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/fat/inode.c	2017-12-20 04:05:01.000000000 -0500
@@ -1269,6 +1269,16 @@ out:
 	return 0;
 }
 
+static void fat_dummy_inode_init(struct inode *inode)
+{
+	/* Initialize this dummy inode to work as no-op. */
+	MSDOS_I(inode)->mmu_private = 0;
+	MSDOS_I(inode)->i_start = 0;
+	MSDOS_I(inode)->i_logstart = 0;
+	MSDOS_I(inode)->i_attrs = 0;
+	MSDOS_I(inode)->i_pos = 0;
+}
+
 static int fat_read_root(struct inode *inode)
 {
 	struct msdos_sb_info *sbi = MSDOS_SB(inode->i_sb);
@@ -1713,12 +1723,13 @@ int fat_fill_super(struct super_block *s
 	fat_inode = new_inode(sb);
 	if (!fat_inode)
 		goto out_fail;
-	MSDOS_I(fat_inode)->i_pos = 0;
+	fat_dummy_inode_init(fat_inode);
 	sbi->fat_inode = fat_inode;
 
 	fsinfo_inode = new_inode(sb);
 	if (!fsinfo_inode)
 		goto out_fail;
+	fat_dummy_inode_init(fsinfo_inode);
 	fsinfo_inode->i_ino = MSDOS_FSINFO_INO;
 	sbi->fsinfo_inode = fsinfo_inode;
 	insert_inode_hash(fsinfo_inode);
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/fcntl.c linux-libre-4.4.107-gnu/fs/fcntl.c
--- linux-libre-4.4-gnu/fs/fcntl.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/fcntl.c	2017-12-20 04:05:01.000000000 -0500
@@ -740,16 +740,10 @@ static int __init fcntl_init(void)
 	 * Exceptions: O_NONBLOCK is a two bit define on parisc; O_NDELAY
 	 * is defined as O_NONBLOCK on some platforms and not on others.
 	 */
-	BUILD_BUG_ON(21 - 1 /* for O_RDONLY being 0 */ != HWEIGHT32(
-		O_RDONLY	| O_WRONLY	| O_RDWR	|
-		O_CREAT		| O_EXCL	| O_NOCTTY	|
-		O_TRUNC		| O_APPEND	| /* O_NONBLOCK	| */
-		__O_SYNC	| O_DSYNC	| FASYNC	|
-		O_DIRECT	| O_LARGEFILE	| O_DIRECTORY	|
-		O_NOFOLLOW	| O_NOATIME	| O_CLOEXEC	|
-		__FMODE_EXEC	| O_PATH	| __O_TMPFILE	|
-		__FMODE_NONOTIFY
-		));
+	BUILD_BUG_ON(21 - 1 /* for O_RDONLY being 0 */ !=
+		HWEIGHT32(
+			(VALID_OPEN_FLAGS & ~(O_NONBLOCK | O_NDELAY)) |
+			__FMODE_EXEC | __FMODE_NONOTIFY));
 
 	fasync_cache = kmem_cache_create("fasync_cache",
 		sizeof(struct fasync_struct), 0, SLAB_PANIC, NULL);
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/fhandle.c linux-libre-4.4.107-gnu/fs/fhandle.c
--- linux-libre-4.4-gnu/fs/fhandle.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/fhandle.c	2017-12-20 04:05:01.000000000 -0500
@@ -228,7 +228,7 @@ long do_handle_open(int mountdirfd,
 		path_put(&path);
 		return fd;
 	}
-	file = file_open_root(path.dentry, path.mnt, "", open_flag);
+	file = file_open_root(path.dentry, path.mnt, "", open_flag, 0);
 	if (IS_ERR(file)) {
 		put_unused_fd(fd);
 		retval =  PTR_ERR(file);
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/fscache/cookie.c linux-libre-4.4.107-gnu/fs/fscache/cookie.c
--- linux-libre-4.4-gnu/fs/fscache/cookie.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/fscache/cookie.c	2017-12-20 04:05:01.000000000 -0500
@@ -542,6 +542,7 @@ void __fscache_disable_cookie(struct fsc
 		hlist_for_each_entry(object, &cookie->backing_objects, cookie_link) {
 			if (invalidate)
 				set_bit(FSCACHE_OBJECT_RETIRED, &object->flags);
+			clear_bit(FSCACHE_OBJECT_PENDING_WRITE, &object->flags);
 			fscache_raise_event(object, FSCACHE_OBJECT_EV_KILL);
 		}
 	} else {
@@ -560,6 +561,10 @@ void __fscache_disable_cookie(struct fsc
 		wait_on_atomic_t(&cookie->n_active, fscache_wait_atomic_t,
 				 TASK_UNINTERRUPTIBLE);
 
+	/* Make sure any pending writes are cancelled. */
+	if (cookie->def->type != FSCACHE_COOKIE_TYPE_INDEX)
+		fscache_invalidate_writes(cookie);
+
 	/* Reset the cookie state if it wasn't relinquished */
 	if (!test_bit(FSCACHE_COOKIE_RELINQUISHED, &cookie->flags)) {
 		atomic_inc(&cookie->n_active);
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/fscache/netfs.c linux-libre-4.4.107-gnu/fs/fscache/netfs.c
--- linux-libre-4.4-gnu/fs/fscache/netfs.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/fscache/netfs.c	2017-12-20 04:05:01.000000000 -0500
@@ -48,6 +48,7 @@ int __fscache_register_netfs(struct fsca
 	cookie->flags		= 1 << FSCACHE_COOKIE_ENABLED;
 
 	spin_lock_init(&cookie->lock);
+	spin_lock_init(&cookie->stores_lock);
 	INIT_HLIST_HEAD(&cookie->backing_objects);
 
 	/* check the netfs type is not already present */
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/fscache/object.c linux-libre-4.4.107-gnu/fs/fscache/object.c
--- linux-libre-4.4-gnu/fs/fscache/object.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/fscache/object.c	2017-12-20 04:05:01.000000000 -0500
@@ -30,6 +30,7 @@ static const struct fscache_state *fscac
 static const struct fscache_state *fscache_object_available(struct fscache_object *, int);
 static const struct fscache_state *fscache_parent_ready(struct fscache_object *, int);
 static const struct fscache_state *fscache_update_object(struct fscache_object *, int);
+static const struct fscache_state *fscache_object_dead(struct fscache_object *, int);
 
 #define __STATE_NAME(n) fscache_osm_##n
 #define STATE(n) (&__STATE_NAME(n))
@@ -91,7 +92,7 @@ static WORK_STATE(LOOKUP_FAILURE,	"LCFL"
 static WORK_STATE(KILL_OBJECT,		"KILL", fscache_kill_object);
 static WORK_STATE(KILL_DEPENDENTS,	"KDEP", fscache_kill_dependents);
 static WORK_STATE(DROP_OBJECT,		"DROP", fscache_drop_object);
-static WORK_STATE(OBJECT_DEAD,		"DEAD", (void*)2UL);
+static WORK_STATE(OBJECT_DEAD,		"DEAD", fscache_object_dead);
 
 static WAIT_STATE(WAIT_FOR_INIT,	"?INI",
 		  TRANSIT_TO(INIT_OBJECT,	1 << FSCACHE_OBJECT_EV_NEW_CHILD));
@@ -229,6 +230,10 @@ execute_work_state:
 	event = -1;
 	if (new_state == NO_TRANSIT) {
 		_debug("{OBJ%x} %s notrans", object->debug_id, state->name);
+		if (unlikely(state == STATE(OBJECT_DEAD))) {
+			_leave(" [dead]");
+			return;
+		}
 		fscache_enqueue_object(object);
 		event_mask = object->oob_event_mask;
 		goto unmask_events;
@@ -239,7 +244,7 @@ execute_work_state:
 	object->state = state = new_state;
 
 	if (state->work) {
-		if (unlikely(state->work == ((void *)2UL))) {
+		if (unlikely(state == STATE(OBJECT_DEAD))) {
 			_leave(" [dead]");
 			return;
 		}
@@ -645,6 +650,12 @@ static const struct fscache_state *fscac
 	fscache_mark_object_dead(object);
 	object->oob_event_mask = 0;
 
+	if (test_bit(FSCACHE_OBJECT_RETIRED, &object->flags)) {
+		/* Reject any new read/write ops and abort any that are pending. */
+		clear_bit(FSCACHE_OBJECT_PENDING_WRITE, &object->flags);
+		fscache_cancel_all_ops(object);
+	}
+
 	if (list_empty(&object->dependents) &&
 	    object->n_ops == 0 &&
 	    object->n_children == 0)
@@ -1077,3 +1088,20 @@ void fscache_object_mark_killed(struct f
 	}
 }
 EXPORT_SYMBOL(fscache_object_mark_killed);
+
+/*
+ * The object is dead.  We can get here if an object gets queued by an event
+ * that would lead to its death (such as EV_KILL) when the dispatcher is
+ * already running (and so can be requeued) but hasn't yet cleared the event
+ * mask.
+ */
+static const struct fscache_state *fscache_object_dead(struct fscache_object *object,
+						       int event)
+{
+	if (!test_and_set_bit(FSCACHE_OBJECT_RUN_AFTER_DEAD,
+			      &object->flags))
+		return NO_TRANSIT;
+
+	WARN(true, "FS-Cache object redispatched after death");
+	return NO_TRANSIT;
+}
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/fscache/object-list.c linux-libre-4.4.107-gnu/fs/fscache/object-list.c
--- linux-libre-4.4-gnu/fs/fscache/object-list.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/fscache/object-list.c	2017-12-20 04:05:01.000000000 -0500
@@ -330,6 +330,13 @@ static void fscache_objlist_config(struc
 	rcu_read_lock();
 
 	confkey = user_key_payload(key);
+	if (!confkey) {
+		/* key was revoked */
+		rcu_read_unlock();
+		key_put(key);
+		goto no_config;
+	}
+
 	buf = confkey->data;
 
 	for (len = confkey->datalen - 1; len >= 0; len--) {
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/fs-writeback.c linux-libre-4.4.107-gnu/fs/fs-writeback.c
--- linux-libre-4.4-gnu/fs/fs-writeback.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/fs-writeback.c	2017-12-20 04:05:01.000000000 -0500
@@ -173,19 +173,33 @@ static void wb_wakeup(struct bdi_writeba
 	spin_unlock_bh(&wb->work_lock);
 }
 
+static void finish_writeback_work(struct bdi_writeback *wb,
+				  struct wb_writeback_work *work)
+{
+	struct wb_completion *done = work->done;
+
+	if (work->auto_free)
+		kfree(work);
+	if (done && atomic_dec_and_test(&done->cnt))
+		wake_up_all(&wb->bdi->wb_waitq);
+}
+
 static void wb_queue_work(struct bdi_writeback *wb,
 			  struct wb_writeback_work *work)
 {
 	trace_writeback_queue(wb, work);
 
-	spin_lock_bh(&wb->work_lock);
-	if (!test_bit(WB_registered, &wb->state))
-		goto out_unlock;
 	if (work->done)
 		atomic_inc(&work->done->cnt);
-	list_add_tail(&work->list, &wb->work_list);
-	mod_delayed_work(bdi_wq, &wb->dwork, 0);
-out_unlock:
+
+	spin_lock_bh(&wb->work_lock);
+
+	if (test_bit(WB_registered, &wb->state)) {
+		list_add_tail(&work->list, &wb->work_list);
+		mod_delayed_work(bdi_wq, &wb->dwork, 0);
+	} else
+		finish_writeback_work(wb, work);
+
 	spin_unlock_bh(&wb->work_lock);
 }
 
@@ -223,6 +237,9 @@ static void wb_wait_for_completion(struc
 #define WB_FRN_HIST_MAX_SLOTS	(WB_FRN_HIST_THR_SLOTS / 2 + 1)
 					/* one round can affect upto 5 slots */
 
+static atomic_t isw_nr_in_flight = ATOMIC_INIT(0);
+static struct workqueue_struct *isw_wq;
+
 void __inode_attach_wb(struct inode *inode, struct page *page)
 {
 	struct backing_dev_info *bdi = inode_to_bdi(inode);
@@ -278,13 +295,15 @@ locked_inode_to_wb_and_lock_list(struct
 		wb_get(wb);
 		spin_unlock(&inode->i_lock);
 		spin_lock(&wb->list_lock);
-		wb_put(wb);		/* not gonna deref it anymore */
 
 		/* i_wb may have changed inbetween, can't use inode_to_wb() */
-		if (likely(wb == inode->i_wb))
-			return wb;	/* @inode already has ref */
+		if (likely(wb == inode->i_wb)) {
+			wb_put(wb);	/* @inode already has ref */
+			return wb;
+		}
 
 		spin_unlock(&wb->list_lock);
+		wb_put(wb);
 		cpu_relax();
 		spin_lock(&inode->i_lock);
 	}
@@ -424,6 +443,8 @@ skip_switch:
 
 	iput(inode);
 	kfree(isw);
+
+	atomic_dec(&isw_nr_in_flight);
 }
 
 static void inode_switch_wbs_rcu_fn(struct rcu_head *rcu_head)
@@ -433,7 +454,7 @@ static void inode_switch_wbs_rcu_fn(stru
 
 	/* needs to grab bh-unsafe locks, bounce to work item */
 	INIT_WORK(&isw->work, inode_switch_wbs_work_fn);
-	schedule_work(&isw->work);
+	queue_work(isw_wq, &isw->work);
 }
 
 /**
@@ -469,7 +490,8 @@ static void inode_switch_wbs(struct inod
 
 	/* while holding I_WB_SWITCH, no one else can update the association */
 	spin_lock(&inode->i_lock);
-	if (inode->i_state & (I_WB_SWITCH | I_FREEING) ||
+	if (!(inode->i_sb->s_flags & MS_ACTIVE) ||
+	    inode->i_state & (I_WB_SWITCH | I_FREEING) ||
 	    inode_to_wb(inode) == isw->new_wb) {
 		spin_unlock(&inode->i_lock);
 		goto out_free;
@@ -480,6 +502,8 @@ static void inode_switch_wbs(struct inod
 	ihold(inode);
 	isw->inode = inode;
 
+	atomic_inc(&isw_nr_in_flight);
+
 	/*
 	 * In addition to synchronizing among switchers, I_WB_SWITCH tells
 	 * the RCU protected stat update paths to grab the mapping's
@@ -842,6 +866,33 @@ restart:
 		wb_put(last_wb);
 }
 
+/**
+ * cgroup_writeback_umount - flush inode wb switches for umount
+ *
+ * This function is called when a super_block is about to be destroyed and
+ * flushes in-flight inode wb switches.  An inode wb switch goes through
+ * RCU and then workqueue, so the two need to be flushed in order to ensure
+ * that all previously scheduled switches are finished.  As wb switches are
+ * rare occurrences and synchronize_rcu() can take a while, perform
+ * flushing iff wb switches are in flight.
+ */
+void cgroup_writeback_umount(void)
+{
+	if (atomic_read(&isw_nr_in_flight)) {
+		synchronize_rcu();
+		flush_workqueue(isw_wq);
+	}
+}
+
+static int __init cgroup_writeback_init(void)
+{
+	isw_wq = alloc_workqueue("inode_switch_wbs", 0, 0);
+	if (!isw_wq)
+		return -ENOMEM;
+	return 0;
+}
+fs_initcall(cgroup_writeback_init);
+
 #else	/* CONFIG_CGROUP_WRITEBACK */
 
 static struct bdi_writeback *
@@ -1304,10 +1355,10 @@ __writeback_single_inode(struct inode *i
  * we go e.g. from filesystem. Flusher thread uses __writeback_single_inode()
  * and does more profound writeback list handling in writeback_sb_inodes().
  */
-static int
-writeback_single_inode(struct inode *inode, struct bdi_writeback *wb,
-		       struct writeback_control *wbc)
+static int writeback_single_inode(struct inode *inode,
+				  struct writeback_control *wbc)
 {
+	struct bdi_writeback *wb;
 	int ret = 0;
 
 	spin_lock(&inode->i_lock);
@@ -1345,7 +1396,8 @@ writeback_single_inode(struct inode *ino
 	ret = __writeback_single_inode(inode, wbc);
 
 	wbc_detach_inode(wbc);
-	spin_lock(&wb->list_lock);
+
+	wb = inode_to_wb_and_lock_list(inode);
 	spin_lock(&inode->i_lock);
 	/*
 	 * If inode is clean, remove it from writeback lists. Otherwise don't
@@ -1420,6 +1472,7 @@ static long writeback_sb_inodes(struct s
 
 	while (!list_empty(&wb->b_io)) {
 		struct inode *inode = wb_inode(wb->b_io.prev);
+		struct bdi_writeback *tmp_wb;
 
 		if (inode->i_sb != sb) {
 			if (work->sb) {
@@ -1510,15 +1563,23 @@ static long writeback_sb_inodes(struct s
 			cond_resched();
 		}
 
-
-		spin_lock(&wb->list_lock);
+		/*
+		 * Requeue @inode if still dirty.  Be careful as @inode may
+		 * have been switched to another wb in the meantime.
+		 */
+		tmp_wb = inode_to_wb_and_lock_list(inode);
 		spin_lock(&inode->i_lock);
 		if (!(inode->i_state & I_DIRTY_ALL))
 			wrote++;
-		requeue_inode(inode, wb, &wbc);
+		requeue_inode(inode, tmp_wb, &wbc);
 		inode_sync_complete(inode);
 		spin_unlock(&inode->i_lock);
 
+		if (unlikely(tmp_wb != wb)) {
+			spin_unlock(&tmp_wb->list_lock);
+			spin_lock(&wb->list_lock);
+		}
+
 		/*
 		 * bail out to wb_writeback() often enough to check
 		 * background threshold and other termination conditions.
@@ -1792,16 +1853,9 @@ static long wb_do_writeback(struct bdi_w
 
 	set_bit(WB_writeback_running, &wb->state);
 	while ((work = get_next_work_item(wb)) != NULL) {
-		struct wb_completion *done = work->done;
-
 		trace_writeback_exec(wb, work);
-
 		wrote += wb_writeback(wb, work);
-
-		if (work->auto_free)
-			kfree(work);
-		if (done && atomic_dec_and_test(&done->cnt))
-			wake_up_all(&wb->bdi->wb_waitq);
+		finish_writeback_work(wb, work);
 	}
 
 	/*
@@ -2305,7 +2359,6 @@ EXPORT_SYMBOL(sync_inodes_sb);
  */
 int write_inode_now(struct inode *inode, int sync)
 {
-	struct bdi_writeback *wb = &inode_to_bdi(inode)->wb;
 	struct writeback_control wbc = {
 		.nr_to_write = LONG_MAX,
 		.sync_mode = sync ? WB_SYNC_ALL : WB_SYNC_NONE,
@@ -2317,7 +2370,7 @@ int write_inode_now(struct inode *inode,
 		wbc.nr_to_write = 0;
 
 	might_sleep();
-	return writeback_single_inode(inode, wb, &wbc);
+	return writeback_single_inode(inode, &wbc);
 }
 EXPORT_SYMBOL(write_inode_now);
 
@@ -2334,7 +2387,7 @@ EXPORT_SYMBOL(write_inode_now);
  */
 int sync_inode(struct inode *inode, struct writeback_control *wbc)
 {
-	return writeback_single_inode(inode, &inode_to_bdi(inode)->wb, wbc);
+	return writeback_single_inode(inode, wbc);
 }
 EXPORT_SYMBOL(sync_inode);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/fuse/cuse.c linux-libre-4.4.107-gnu/fs/fuse/cuse.c
--- linux-libre-4.4-gnu/fs/fuse/cuse.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/fuse/cuse.c	2017-12-20 04:05:01.000000000 -0500
@@ -90,7 +90,7 @@ static struct list_head *cuse_conntbl_he
 
 static ssize_t cuse_read_iter(struct kiocb *kiocb, struct iov_iter *to)
 {
-	struct fuse_io_priv io = { .async = 0, .file = kiocb->ki_filp };
+	struct fuse_io_priv io = FUSE_IO_PRIV_SYNC(kiocb->ki_filp);
 	loff_t pos = 0;
 
 	return fuse_direct_io(&io, to, &pos, FUSE_DIO_CUSE);
@@ -98,7 +98,7 @@ static ssize_t cuse_read_iter(struct kio
 
 static ssize_t cuse_write_iter(struct kiocb *kiocb, struct iov_iter *from)
 {
-	struct fuse_io_priv io = { .async = 0, .file = kiocb->ki_filp };
+	struct fuse_io_priv io = FUSE_IO_PRIV_SYNC(kiocb->ki_filp);
 	loff_t pos = 0;
 	/*
 	 * No locking or generic_write_checks(), the server is
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/fuse/dev.c linux-libre-4.4.107-gnu/fs/fuse/dev.c
--- linux-libre-4.4-gnu/fs/fuse/dev.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/fuse/dev.c	2017-12-20 04:05:01.000000000 -0500
@@ -418,6 +418,10 @@ static void request_end(struct fuse_conn
 static void queue_interrupt(struct fuse_iqueue *fiq, struct fuse_req *req)
 {
 	spin_lock(&fiq->waitq.lock);
+	if (test_bit(FR_FINISHED, &req->flags)) {
+		spin_unlock(&fiq->waitq.lock);
+		return;
+	}
 	if (list_empty(&req->intr_entry)) {
 		list_add_tail(&req->intr_entry, &fiq->interrupts);
 		wake_up_locked(&fiq->waitq);
@@ -2083,7 +2087,6 @@ static void end_requests(struct fuse_con
 		struct fuse_req *req;
 		req = list_entry(head->next, struct fuse_req, list);
 		req->out.h.error = -ECONNABORTED;
-		clear_bit(FR_PENDING, &req->flags);
 		clear_bit(FR_SENT, &req->flags);
 		list_del_init(&req->list);
 		request_end(fc, req);
@@ -2161,6 +2164,8 @@ void fuse_abort_conn(struct fuse_conn *f
 		spin_lock(&fiq->waitq.lock);
 		fiq->connected = 0;
 		list_splice_init(&fiq->pending, &to_end2);
+		list_for_each_entry(req, &to_end2, list)
+			clear_bit(FR_PENDING, &req->flags);
 		while (forget_pending(fiq))
 			kfree(dequeue_forget(fiq, 1, NULL));
 		wake_up_all_locked(&fiq->waitq);
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/fuse/dir.c linux-libre-4.4.107-gnu/fs/fuse/dir.c
--- linux-libre-4.4-gnu/fs/fuse/dir.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/fuse/dir.c	2017-12-20 04:05:01.000000000 -0500
@@ -1295,7 +1295,8 @@ static int parse_dirplusfile(char *buf,
 			*/
 			over = !dir_emit(ctx, dirent->name, dirent->namelen,
 				       dirent->ino, dirent->type);
-			ctx->pos = dirent->off;
+			if (!over)
+				ctx->pos = dirent->off;
 		}
 
 		buf += reclen;
@@ -1697,14 +1698,46 @@ error:
 static int fuse_setattr(struct dentry *entry, struct iattr *attr)
 {
 	struct inode *inode = d_inode(entry);
+	struct file *file = (attr->ia_valid & ATTR_FILE) ? attr->ia_file : NULL;
+	int ret;
 
 	if (!fuse_allow_current_process(get_fuse_conn(inode)))
 		return -EACCES;
 
-	if (attr->ia_valid & ATTR_FILE)
-		return fuse_do_setattr(inode, attr, attr->ia_file);
-	else
-		return fuse_do_setattr(inode, attr, NULL);
+	if (attr->ia_valid & (ATTR_KILL_SUID | ATTR_KILL_SGID)) {
+		int kill;
+
+		attr->ia_valid &= ~(ATTR_KILL_SUID | ATTR_KILL_SGID |
+				    ATTR_MODE);
+		/*
+		 * ia_mode calculation may have used stale i_mode.  Refresh and
+		 * recalculate.
+		 */
+		ret = fuse_do_getattr(inode, NULL, file);
+		if (ret)
+			return ret;
+
+		attr->ia_mode = inode->i_mode;
+		kill = should_remove_suid(entry);
+		if (kill & ATTR_KILL_SUID) {
+			attr->ia_valid |= ATTR_MODE;
+			attr->ia_mode &= ~S_ISUID;
+		}
+		if (kill & ATTR_KILL_SGID) {
+			attr->ia_valid |= ATTR_MODE;
+			attr->ia_mode &= ~S_ISGID;
+		}
+	}
+	if (!attr->ia_valid)
+		return 0;
+
+	ret = fuse_do_setattr(inode, attr, file);
+	if (!ret) {
+		/* Directory mode changed, may need to revalidate access */
+		if (d_is_dir(entry) && (attr->ia_valid & ATTR_MODE))
+			fuse_invalidate_entry_cache(entry);
+	}
+	return ret;
 }
 
 static int fuse_getattr(struct vfsmount *mnt, struct dentry *entry,
@@ -1797,6 +1830,23 @@ static ssize_t fuse_getxattr(struct dent
 	return ret;
 }
 
+static int fuse_verify_xattr_list(char *list, size_t size)
+{
+	size_t origsize = size;
+
+	while (size) {
+		size_t thislen = strnlen(list, size);
+
+		if (!thislen || thislen == size)
+			return -EIO;
+
+		size -= thislen + 1;
+		list += thislen + 1;
+	}
+
+	return origsize;
+}
+
 static ssize_t fuse_listxattr(struct dentry *entry, char *list, size_t size)
 {
 	struct inode *inode = d_inode(entry);
@@ -1832,6 +1882,8 @@ static ssize_t fuse_listxattr(struct den
 	ret = fuse_simple_request(fc, &args);
 	if (!ret && !size)
 		ret = outarg.size;
+	if (ret > 0 && size)
+		ret = fuse_verify_xattr_list(list, ret);
 	if (ret == -ENOSYS) {
 		fc->no_listxattr = 1;
 		ret = -EOPNOTSUPP;
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/fuse/file.c linux-libre-4.4.107-gnu/fs/fuse/file.c
--- linux-libre-4.4-gnu/fs/fuse/file.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/fuse/file.c	2017-12-20 04:05:01.000000000 -0500
@@ -46,7 +46,7 @@ struct fuse_file *fuse_file_alloc(struct
 {
 	struct fuse_file *ff;
 
-	ff = kmalloc(sizeof(struct fuse_file), GFP_KERNEL);
+	ff = kzalloc(sizeof(struct fuse_file), GFP_KERNEL);
 	if (unlikely(!ff))
 		return NULL;
 
@@ -100,6 +100,7 @@ static void fuse_file_put(struct fuse_fi
 			iput(req->misc.release.inode);
 			fuse_put_request(ff->fc, req);
 		} else if (sync) {
+			__set_bit(FR_FORCE, &req->flags);
 			__clear_bit(FR_BACKGROUND, &req->flags);
 			fuse_request_send(ff->fc, req);
 			iput(req->misc.release.inode);
@@ -417,6 +418,15 @@ static int fuse_flush(struct file *file,
 	fuse_sync_writes(inode);
 	mutex_unlock(&inode->i_mutex);
 
+	if (test_bit(AS_ENOSPC, &file->f_mapping->flags) &&
+	    test_and_clear_bit(AS_ENOSPC, &file->f_mapping->flags))
+		err = -ENOSPC;
+	if (test_bit(AS_EIO, &file->f_mapping->flags) &&
+	    test_and_clear_bit(AS_EIO, &file->f_mapping->flags))
+		err = -EIO;
+	if (err)
+		return err;
+
 	req = fuse_get_req_nofail_nopages(fc, file);
 	memset(&inarg, 0, sizeof(inarg));
 	inarg.fh = ff->fh;
@@ -462,6 +472,21 @@ int fuse_fsync_common(struct file *file,
 		goto out;
 
 	fuse_sync_writes(inode);
+
+	/*
+	 * Due to implementation of fuse writeback
+	 * filemap_write_and_wait_range() does not catch errors.
+	 * We have to do this directly after fuse_sync_writes()
+	 */
+	if (test_bit(AS_ENOSPC, &file->f_mapping->flags) &&
+	    test_and_clear_bit(AS_ENOSPC, &file->f_mapping->flags))
+		err = -ENOSPC;
+	if (test_bit(AS_EIO, &file->f_mapping->flags) &&
+	    test_and_clear_bit(AS_EIO, &file->f_mapping->flags))
+		err = -EIO;
+	if (err)
+		goto out;
+
 	err = sync_inode_metadata(inode, 1);
 	if (err)
 		goto out;
@@ -516,18 +541,23 @@ void fuse_read_fill(struct fuse_req *req
 	req->out.args[0].size = count;
 }
 
-static void fuse_release_user_pages(struct fuse_req *req, int write)
+static void fuse_release_user_pages(struct fuse_req *req, bool should_dirty)
 {
 	unsigned i;
 
 	for (i = 0; i < req->num_pages; i++) {
 		struct page *page = req->pages[i];
-		if (write)
+		if (should_dirty)
 			set_page_dirty_lock(page);
 		put_page(page);
 	}
 }
 
+static void fuse_io_release(struct kref *kref)
+{
+	kfree(container_of(kref, struct fuse_io_priv, refcnt));
+}
+
 static ssize_t fuse_get_res_by_io(struct fuse_io_priv *io)
 {
 	if (io->err)
@@ -585,8 +615,9 @@ static void fuse_aio_complete(struct fus
 		}
 
 		io->iocb->ki_complete(io->iocb, res, 0);
-		kfree(io);
 	}
+
+	kref_put(&io->refcnt, fuse_io_release);
 }
 
 static void fuse_aio_complete_req(struct fuse_conn *fc, struct fuse_req *req)
@@ -613,6 +644,7 @@ static size_t fuse_async_req_send(struct
 		size_t num_bytes, struct fuse_io_priv *io)
 {
 	spin_lock(&io->lock);
+	kref_get(&io->refcnt);
 	io->size += num_bytes;
 	io->reqs++;
 	spin_unlock(&io->lock);
@@ -691,7 +723,7 @@ static void fuse_short_read(struct fuse_
 
 static int fuse_do_readpage(struct file *file, struct page *page)
 {
-	struct fuse_io_priv io = { .async = 0, .file = file };
+	struct fuse_io_priv io = FUSE_IO_PRIV_SYNC(file);
 	struct inode *inode = page->mapping->host;
 	struct fuse_conn *fc = get_fuse_conn(inode);
 	struct fuse_req *req;
@@ -984,7 +1016,7 @@ static size_t fuse_send_write_pages(stru
 	size_t res;
 	unsigned offset;
 	unsigned i;
-	struct fuse_io_priv io = { .async = 0, .file = file };
+	struct fuse_io_priv io = FUSE_IO_PRIV_SYNC(file);
 
 	for (i = 0; i < req->num_pages; i++)
 		fuse_wait_on_page_writeback(inode, req->pages[i]->index);
@@ -1300,6 +1332,7 @@ ssize_t fuse_direct_io(struct fuse_io_pr
 		       loff_t *ppos, int flags)
 {
 	int write = flags & FUSE_DIO_WRITE;
+	bool should_dirty = !write && iter_is_iovec(iter);
 	int cuse = flags & FUSE_DIO_CUSE;
 	struct file *file = io->file;
 	struct inode *inode = file->f_mapping->host;
@@ -1344,7 +1377,7 @@ ssize_t fuse_direct_io(struct fuse_io_pr
 			nres = fuse_send_read(req, io, pos, nbytes, owner);
 
 		if (!io->async)
-			fuse_release_user_pages(req, !write);
+			fuse_release_user_pages(req, should_dirty);
 		if (req->out.h.error) {
 			if (!res)
 				res = req->out.h.error;
@@ -1398,7 +1431,7 @@ static ssize_t __fuse_direct_read(struct
 
 static ssize_t fuse_direct_read_iter(struct kiocb *iocb, struct iov_iter *to)
 {
-	struct fuse_io_priv io = { .async = 0, .file = iocb->ki_filp };
+	struct fuse_io_priv io = FUSE_IO_PRIV_SYNC(iocb->ki_filp);
 	return __fuse_direct_read(&io, to, &iocb->ki_pos);
 }
 
@@ -1406,7 +1439,7 @@ static ssize_t fuse_direct_write_iter(st
 {
 	struct file *file = iocb->ki_filp;
 	struct inode *inode = file_inode(file);
-	struct fuse_io_priv io = { .async = 0, .file = file };
+	struct fuse_io_priv io = FUSE_IO_PRIV_SYNC(file);
 	ssize_t res;
 
 	if (is_bad_inode(inode))
@@ -1965,6 +1998,10 @@ static int fuse_write_end(struct file *f
 {
 	struct inode *inode = page->mapping->host;
 
+	/* Haven't copied anything?  Skip zeroing, size extending, dirtying. */
+	if (!copied)
+		goto unlock;
+
 	if (!PageUptodate(page)) {
 		/* Zero any unwritten bytes at the end of the page */
 		size_t endoff = (pos + copied) & ~PAGE_CACHE_MASK;
@@ -1975,6 +2012,8 @@ static int fuse_write_end(struct file *f
 
 	fuse_write_update_size(inode, pos + copied);
 	set_page_dirty(page);
+
+unlock:
 	unlock_page(page);
 	page_cache_release(page);
 
@@ -2786,6 +2825,7 @@ fuse_direct_IO(struct kiocb *iocb, struc
 	loff_t i_size;
 	size_t count = iov_iter_count(iter);
 	struct fuse_io_priv *io;
+	bool is_sync = is_sync_kiocb(iocb);
 
 	pos = offset;
 	inode = file->f_mapping->host;
@@ -2806,6 +2846,7 @@ fuse_direct_IO(struct kiocb *iocb, struc
 	if (!io)
 		return -ENOMEM;
 	spin_lock_init(&io->lock);
+	kref_init(&io->refcnt);
 	io->reqs = 1;
 	io->bytes = -1;
 	io->size = 0;
@@ -2825,12 +2866,18 @@ fuse_direct_IO(struct kiocb *iocb, struc
 	 * to wait on real async I/O requests, so we must submit this request
 	 * synchronously.
 	 */
-	if (!is_sync_kiocb(iocb) && (offset + count > i_size) &&
+	if (!is_sync && (offset + count > i_size) &&
 	    iov_iter_rw(iter) == WRITE)
 		io->async = false;
 
-	if (io->async && is_sync_kiocb(iocb))
+	if (io->async && is_sync) {
+		/*
+		 * Additional reference to keep io around after
+		 * calling fuse_aio_complete()
+		 */
+		kref_get(&io->refcnt);
 		io->done = &wait;
+	}
 
 	if (iov_iter_rw(iter) == WRITE) {
 		ret = fuse_direct_io(io, iter, &pos, FUSE_DIO_WRITE);
@@ -2843,14 +2890,14 @@ fuse_direct_IO(struct kiocb *iocb, struc
 		fuse_aio_complete(io, ret < 0 ? ret : 0, -1);
 
 		/* we have a non-extending, async request, so return */
-		if (!is_sync_kiocb(iocb))
+		if (!is_sync)
 			return -EIOCBQUEUED;
 
 		wait_for_completion(&wait);
 		ret = fuse_get_res_by_io(io);
 	}
 
-	kfree(io);
+	kref_put(&io->refcnt, fuse_io_release);
 
 	if (iov_iter_rw(iter) == WRITE) {
 		if (ret > 0)
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/fuse/fuse_i.h linux-libre-4.4.107-gnu/fs/fuse/fuse_i.h
--- linux-libre-4.4-gnu/fs/fuse/fuse_i.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/fuse/fuse_i.h	2017-12-20 04:05:01.000000000 -0500
@@ -22,6 +22,7 @@
 #include <linux/rbtree.h>
 #include <linux/poll.h>
 #include <linux/workqueue.h>
+#include <linux/kref.h>
 
 /** Max number of pages that can be used in a single read request */
 #define FUSE_MAX_PAGES_PER_REQ 32
@@ -243,6 +244,7 @@ struct fuse_args {
 
 /** The request IO state (for asynchronous processing) */
 struct fuse_io_priv {
+	struct kref refcnt;
 	int async;
 	spinlock_t lock;
 	unsigned reqs;
@@ -256,6 +258,13 @@ struct fuse_io_priv {
 	struct completion *done;
 };
 
+#define FUSE_IO_PRIV_SYNC(f) \
+{					\
+	.refcnt = { ATOMIC_INIT(1) },	\
+	.async = 0,			\
+	.file = f,			\
+}
+
 /**
  * Request flags
  *
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/fuse/inode.c linux-libre-4.4.107-gnu/fs/fuse/inode.c
--- linux-libre-4.4-gnu/fs/fuse/inode.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/fuse/inode.c	2017-12-20 04:05:01.000000000 -0500
@@ -926,7 +926,7 @@ static void fuse_send_init(struct fuse_c
 	arg->flags |= FUSE_ASYNC_READ | FUSE_POSIX_LOCKS | FUSE_ATOMIC_O_TRUNC |
 		FUSE_EXPORT_SUPPORT | FUSE_BIG_WRITES | FUSE_DONT_MASK |
 		FUSE_SPLICE_WRITE | FUSE_SPLICE_MOVE | FUSE_SPLICE_READ |
-		FUSE_FLOCK_LOCKS | FUSE_IOCTL_DIR | FUSE_AUTO_INVAL_DATA |
+		FUSE_FLOCK_LOCKS | FUSE_HAS_IOCTL_DIR | FUSE_AUTO_INVAL_DATA |
 		FUSE_DO_READDIRPLUS | FUSE_READDIRPLUS_AUTO | FUSE_ASYNC_DIO |
 		FUSE_WRITEBACK_CACHE | FUSE_NO_OPEN_SUPPORT;
 	req->in.h.opcode = FUSE_INIT;
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/gfs2/acl.c linux-libre-4.4.107-gnu/fs/gfs2/acl.c
--- linux-libre-4.4-gnu/fs/gfs2/acl.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/gfs2/acl.c	2017-12-20 04:05:01.000000000 -0500
@@ -79,17 +79,11 @@ int gfs2_set_acl(struct inode *inode, st
 	if (type == ACL_TYPE_ACCESS) {
 		umode_t mode = inode->i_mode;
 
-		error = posix_acl_equiv_mode(acl, &mode);
-		if (error < 0)
+		error = posix_acl_update_mode(inode, &inode->i_mode, &acl);
+		if (error)
 			return error;
-
-		if (error == 0)
-			acl = NULL;
-
-		if (mode != inode->i_mode) {
-			inode->i_mode = mode;
+		if (mode != inode->i_mode)
 			mark_inode_dirty(inode);
-		}
 	}
 
 	if (acl) {
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/gfs2/dir.c linux-libre-4.4.107-gnu/fs/gfs2/dir.c
--- linux-libre-4.4-gnu/fs/gfs2/dir.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/gfs2/dir.c	2017-12-20 04:05:01.000000000 -0500
@@ -760,7 +760,7 @@ static int get_first_leaf(struct gfs2_in
 	int error;
 
 	error = get_leaf_nr(dip, index, &leaf_no);
-	if (!error)
+	if (!IS_ERR_VALUE(error))
 		error = get_leaf(dip, leaf_no, bh_out);
 
 	return error;
@@ -976,7 +976,7 @@ static int dir_split_leaf(struct inode *
 
 	index = name->hash >> (32 - dip->i_depth);
 	error = get_leaf_nr(dip, index, &leaf_no);
-	if (error)
+	if (IS_ERR_VALUE(error))
 		return error;
 
 	/*  Get the old leaf block  */
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/gfs2/file.c linux-libre-4.4.107-gnu/fs/gfs2/file.c
--- linux-libre-4.4-gnu/fs/gfs2/file.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/gfs2/file.c	2017-12-20 04:05:01.000000000 -0500
@@ -255,7 +255,7 @@ static int do_gfs2_set_flags(struct file
 			goto out;
 	}
 	if ((flags ^ new_flags) & GFS2_DIF_JDATA) {
-		if (flags & GFS2_DIF_JDATA)
+		if (new_flags & GFS2_DIF_JDATA)
 			gfs2_log_flush(sdp, ip->i_gl, NORMAL_FLUSH);
 		error = filemap_fdatawrite(inode->i_mapping);
 		if (error)
@@ -263,6 +263,8 @@ static int do_gfs2_set_flags(struct file
 		error = filemap_fdatawait(inode->i_mapping);
 		if (error)
 			goto out;
+		if (new_flags & GFS2_DIF_JDATA)
+			gfs2_ordered_del_inode(ip);
 	}
 	error = gfs2_trans_begin(sdp, RES_DINODE, 0);
 	if (error)
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/gfs2/glock.c linux-libre-4.4.107-gnu/fs/gfs2/glock.c
--- linux-libre-4.4-gnu/fs/gfs2/glock.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/gfs2/glock.c	2017-12-20 04:05:01.000000000 -0500
@@ -80,9 +80,9 @@ static struct rhashtable_params ht_parms
 
 static struct rhashtable gl_hash_table;
 
-void gfs2_glock_free(struct gfs2_glock *gl)
+static void gfs2_glock_dealloc(struct rcu_head *rcu)
 {
-	struct gfs2_sbd *sdp = gl->gl_name.ln_sbd;
+	struct gfs2_glock *gl = container_of(rcu, struct gfs2_glock, gl_rcu);
 
 	if (gl->gl_ops->go_flags & GLOF_ASPACE) {
 		kmem_cache_free(gfs2_glock_aspace_cachep, gl);
@@ -90,6 +90,13 @@ void gfs2_glock_free(struct gfs2_glock *
 		kfree(gl->gl_lksb.sb_lvbptr);
 		kmem_cache_free(gfs2_glock_cachep, gl);
 	}
+}
+
+void gfs2_glock_free(struct gfs2_glock *gl)
+{
+	struct gfs2_sbd *sdp = gl->gl_name.ln_sbd;
+
+	call_rcu(&gl->gl_rcu, gfs2_glock_dealloc);
 	if (atomic_dec_and_test(&sdp->sd_glock_disposal))
 		wake_up(&sdp->sd_glock_wait);
 }
@@ -651,9 +658,11 @@ int gfs2_glock_get(struct gfs2_sbd *sdp,
 	struct kmem_cache *cachep;
 	int ret, tries = 0;
 
+	rcu_read_lock();
 	gl = rhashtable_lookup_fast(&gl_hash_table, &name, ht_parms);
 	if (gl && !lockref_get_not_dead(&gl->gl_lockref))
 		gl = NULL;
+	rcu_read_unlock();
 
 	*glp = gl;
 	if (gl)
@@ -721,15 +730,18 @@ again:
 
 	if (ret == -EEXIST) {
 		ret = 0;
+		rcu_read_lock();
 		tmp = rhashtable_lookup_fast(&gl_hash_table, &name, ht_parms);
 		if (tmp == NULL || !lockref_get_not_dead(&tmp->gl_lockref)) {
 			if (++tries < 100) {
+				rcu_read_unlock();
 				cond_resched();
 				goto again;
 			}
 			tmp = NULL;
 			ret = -ENOMEM;
 		}
+		rcu_read_unlock();
 	} else {
 		WARN_ON_ONCE(ret);
 	}
@@ -1786,29 +1798,28 @@ void gfs2_glock_exit(void)
 
 static void gfs2_glock_iter_next(struct gfs2_glock_iter *gi)
 {
-	do {
-		gi->gl = rhashtable_walk_next(&gi->hti);
+	while ((gi->gl = rhashtable_walk_next(&gi->hti))) {
 		if (IS_ERR(gi->gl)) {
 			if (PTR_ERR(gi->gl) == -EAGAIN)
 				continue;
 			gi->gl = NULL;
+			return;
 		}
-	/* Skip entries for other sb and dead entries */
-	} while ((gi->gl) && ((gi->sdp != gi->gl->gl_name.ln_sbd) ||
-			      __lockref_is_dead(&gi->gl->gl_lockref)));
+		/* Skip entries for other sb and dead entries */
+		if (gi->sdp == gi->gl->gl_name.ln_sbd &&
+		    !__lockref_is_dead(&gi->gl->gl_lockref))
+			return;
+	}
 }
 
 static void *gfs2_glock_seq_start(struct seq_file *seq, loff_t *pos)
 {
 	struct gfs2_glock_iter *gi = seq->private;
 	loff_t n = *pos;
-	int ret;
-
-	if (gi->last_pos <= *pos)
-		n = (*pos - gi->last_pos);
 
-	ret = rhashtable_walk_start(&gi->hti);
-	if (ret)
+	if (rhashtable_walk_init(&gl_hash_table, &gi->hti) != 0)
+		return NULL;
+	if (rhashtable_walk_start(&gi->hti) != 0)
 		return NULL;
 
 	do {
@@ -1816,6 +1827,7 @@ static void *gfs2_glock_seq_start(struct
 	} while (gi->gl && n--);
 
 	gi->last_pos = *pos;
+
 	return gi->gl;
 }
 
@@ -1827,6 +1839,7 @@ static void *gfs2_glock_seq_next(struct
 	(*pos)++;
 	gi->last_pos = *pos;
 	gfs2_glock_iter_next(gi);
+
 	return gi->gl;
 }
 
@@ -1835,7 +1848,10 @@ static void gfs2_glock_seq_stop(struct s
 	struct gfs2_glock_iter *gi = seq->private;
 
 	gi->gl = NULL;
-	rhashtable_walk_stop(&gi->hti);
+	if (gi->hti.walker) {
+		rhashtable_walk_stop(&gi->hti);
+		rhashtable_walk_exit(&gi->hti);
+	}
 }
 
 static int gfs2_glock_seq_show(struct seq_file *seq, void *iter_ptr)
@@ -1898,12 +1914,10 @@ static int gfs2_glocks_open(struct inode
 		struct gfs2_glock_iter *gi = seq->private;
 
 		gi->sdp = inode->i_private;
-		gi->last_pos = 0;
 		seq->buf = kmalloc(GFS2_SEQ_GOODSIZE, GFP_KERNEL | __GFP_NOWARN);
 		if (seq->buf)
 			seq->size = GFS2_SEQ_GOODSIZE;
 		gi->gl = NULL;
-		ret = rhashtable_walk_init(&gl_hash_table, &gi->hti);
 	}
 	return ret;
 }
@@ -1914,7 +1928,6 @@ static int gfs2_glocks_release(struct in
 	struct gfs2_glock_iter *gi = seq->private;
 
 	gi->gl = NULL;
-	rhashtable_walk_exit(&gi->hti);
 	return seq_release_private(inode, file);
 }
 
@@ -1926,12 +1939,10 @@ static int gfs2_glstats_open(struct inod
 		struct seq_file *seq = file->private_data;
 		struct gfs2_glock_iter *gi = seq->private;
 		gi->sdp = inode->i_private;
-		gi->last_pos = 0;
 		seq->buf = kmalloc(GFS2_SEQ_GOODSIZE, GFP_KERNEL | __GFP_NOWARN);
 		if (seq->buf)
 			seq->size = GFS2_SEQ_GOODSIZE;
 		gi->gl = NULL;
-		ret = rhashtable_walk_init(&gl_hash_table, &gi->hti);
 	}
 	return ret;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/gfs2/incore.h linux-libre-4.4.107-gnu/fs/gfs2/incore.h
--- linux-libre-4.4-gnu/fs/gfs2/incore.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/gfs2/incore.h	2017-12-20 04:05:01.000000000 -0500
@@ -207,7 +207,7 @@ struct lm_lockname {
 	struct gfs2_sbd *ln_sbd;
 	u64 ln_number;
 	unsigned int ln_type;
-};
+} __packed __aligned(sizeof(int));
 
 #define lm_name_equal(name1, name2) \
         (((name1)->ln_number == (name2)->ln_number) &&	\
@@ -367,6 +367,7 @@ struct gfs2_glock {
 			loff_t end;
 		} gl_vm;
 	};
+	struct rcu_head gl_rcu;
 	struct rhash_head gl_node;
 };
 
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/hfsplus/posix_acl.c linux-libre-4.4.107-gnu/fs/hfsplus/posix_acl.c
--- linux-libre-4.4-gnu/fs/hfsplus/posix_acl.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/hfsplus/posix_acl.c	2017-12-20 04:05:01.000000000 -0500
@@ -68,8 +68,8 @@ int hfsplus_set_posix_acl(struct inode *
 	case ACL_TYPE_ACCESS:
 		xattr_name = POSIX_ACL_XATTR_ACCESS;
 		if (acl) {
-			err = posix_acl_equiv_mode(acl, &inode->i_mode);
-			if (err < 0)
+			err = posix_acl_update_mode(inode, &inode->i_mode, &acl);
+			if (err)
 				return err;
 		}
 		err = 0;
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/hostfs/hostfs_kern.c linux-libre-4.4.107-gnu/fs/hostfs/hostfs_kern.c
--- linux-libre-4.4-gnu/fs/hostfs/hostfs_kern.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/hostfs/hostfs_kern.c	2017-12-20 04:05:01.000000000 -0500
@@ -730,15 +730,13 @@ static int hostfs_mknod(struct inode *di
 
 	init_special_inode(inode, mode, dev);
 	err = do_mknod(name, mode, MAJOR(dev), MINOR(dev));
-	if (!err)
+	if (err)
 		goto out_free;
 
 	err = read_name(inode, name);
 	__putname(name);
 	if (err)
 		goto out_put;
-	if (err)
-		goto out_put;
 
 	d_instantiate(dentry, inode);
 	return 0;
@@ -961,10 +959,11 @@ static int hostfs_fill_sb_common(struct
 
 	if (S_ISLNK(root_inode->i_mode)) {
 		char *name = follow_link(host_root_path);
-		if (IS_ERR(name))
+		if (IS_ERR(name)) {
 			err = PTR_ERR(name);
-		else
-			err = read_name(root_inode, name);
+			goto out_put;
+		}
+		err = read_name(root_inode, name);
 		kfree(name);
 		if (err)
 			goto out_put;
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/hpfs/namei.c linux-libre-4.4.107-gnu/fs/hpfs/namei.c
--- linux-libre-4.4-gnu/fs/hpfs/namei.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/hpfs/namei.c	2017-12-20 04:05:01.000000000 -0500
@@ -375,12 +375,11 @@ static int hpfs_unlink(struct inode *dir
 	struct inode *inode = d_inode(dentry);
 	dnode_secno dno;
 	int r;
-	int rep = 0;
 	int err;
 
 	hpfs_lock(dir->i_sb);
 	hpfs_adjust_length(name, &len);
-again:
+
 	err = -ENOENT;
 	de = map_dirent(dir, hpfs_i(dir)->i_dno, name, len, &dno, &qbh);
 	if (!de)
@@ -400,33 +399,9 @@ again:
 		hpfs_error(dir->i_sb, "there was error when removing dirent");
 		err = -EFSERROR;
 		break;
-	case 2:		/* no space for deleting, try to truncate file */
-
+	case 2:		/* no space for deleting */
 		err = -ENOSPC;
-		if (rep++)
-			break;
-
-		dentry_unhash(dentry);
-		if (!d_unhashed(dentry)) {
-			hpfs_unlock(dir->i_sb);
-			return -ENOSPC;
-		}
-		if (generic_permission(inode, MAY_WRITE) ||
-		    !S_ISREG(inode->i_mode) ||
-		    get_write_access(inode)) {
-			d_rehash(dentry);
-		} else {
-			struct iattr newattrs;
-			/*pr_info("truncating file before delete.\n");*/
-			newattrs.ia_size = 0;
-			newattrs.ia_valid = ATTR_SIZE | ATTR_CTIME;
-			err = notify_change(dentry, &newattrs, NULL);
-			put_write_access(inode);
-			if (!err)
-				goto again;
-		}
-		hpfs_unlock(dir->i_sb);
-		return -ENOSPC;
+		break;
 	default:
 		drop_nlink(inode);
 		err = 0;
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/hpfs/super.c linux-libre-4.4.107-gnu/fs/hpfs/super.c
--- linux-libre-4.4-gnu/fs/hpfs/super.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/hpfs/super.c	2017-12-20 04:05:01.000000000 -0500
@@ -15,6 +15,7 @@
 #include <linux/sched.h>
 #include <linux/bitmap.h>
 #include <linux/slab.h>
+#include <linux/seq_file.h>
 
 /* Mark the filesystem dirty, so that chkdsk checks it when os/2 booted */
 
@@ -453,10 +454,6 @@ static int hpfs_remount_fs(struct super_
 	int lowercase, eas, chk, errs, chkdsk, timeshift;
 	int o;
 	struct hpfs_sb_info *sbi = hpfs_sb(s);
-	char *new_opts = kstrdup(data, GFP_KERNEL);
-
-	if (!new_opts)
-		return -ENOMEM;
 
 	sync_filesystem(s);
 
@@ -493,17 +490,44 @@ static int hpfs_remount_fs(struct super_
 
 	if (!(*flags & MS_RDONLY)) mark_dirty(s, 1);
 
-	replace_mount_options(s, new_opts);
-
 	hpfs_unlock(s);
 	return 0;
 
 out_err:
 	hpfs_unlock(s);
-	kfree(new_opts);
 	return -EINVAL;
 }
 
+static int hpfs_show_options(struct seq_file *seq, struct dentry *root)
+{
+	struct hpfs_sb_info *sbi = hpfs_sb(root->d_sb);
+
+	seq_printf(seq, ",uid=%u", from_kuid_munged(&init_user_ns, sbi->sb_uid));
+	seq_printf(seq, ",gid=%u", from_kgid_munged(&init_user_ns, sbi->sb_gid));
+	seq_printf(seq, ",umask=%03o", (~sbi->sb_mode & 0777));
+	if (sbi->sb_lowercase)
+		seq_printf(seq, ",case=lower");
+	if (!sbi->sb_chk)
+		seq_printf(seq, ",check=none");
+	if (sbi->sb_chk == 2)
+		seq_printf(seq, ",check=strict");
+	if (!sbi->sb_err)
+		seq_printf(seq, ",errors=continue");
+	if (sbi->sb_err == 2)
+		seq_printf(seq, ",errors=panic");
+	if (!sbi->sb_chkdsk)
+		seq_printf(seq, ",chkdsk=no");
+	if (sbi->sb_chkdsk == 2)
+		seq_printf(seq, ",chkdsk=always");
+	if (!sbi->sb_eas)
+		seq_printf(seq, ",eas=no");
+	if (sbi->sb_eas == 1)
+		seq_printf(seq, ",eas=ro");
+	if (sbi->sb_timeshift)
+		seq_printf(seq, ",timeshift=%d", sbi->sb_timeshift);
+	return 0;
+}
+
 /* Super operations */
 
 static const struct super_operations hpfs_sops =
@@ -514,7 +538,7 @@ static const struct super_operations hpf
 	.put_super	= hpfs_put_super,
 	.statfs		= hpfs_statfs,
 	.remount_fs	= hpfs_remount_fs,
-	.show_options	= generic_show_options,
+	.show_options	= hpfs_show_options,
 };
 
 static int hpfs_fill_super(struct super_block *s, void *options, int silent)
@@ -537,8 +561,6 @@ static int hpfs_fill_super(struct super_
 
 	int o;
 
-	save_mount_options(s, options);
-
 	sbi = kzalloc(sizeof(*sbi), GFP_KERNEL);
 	if (!sbi) {
 		return -ENOMEM;
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/hugetlbfs/inode.c linux-libre-4.4.107-gnu/fs/hugetlbfs/inode.c
--- linux-libre-4.4-gnu/fs/hugetlbfs/inode.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/hugetlbfs/inode.c	2017-12-20 04:05:01.000000000 -0500
@@ -191,7 +191,7 @@ hugetlb_get_unmapped_area(struct file *f
 		addr = ALIGN(addr, huge_page_size(h));
 		vma = find_vma(mm, addr);
 		if (TASK_SIZE - len >= addr &&
-		    (!vma || addr + len <= vma->vm_start))
+		    (!vma || addr + len <= vm_start_gap(vma)))
 			return addr;
 	}
 
@@ -463,6 +463,7 @@ hugetlb_vmdelete_list(struct rb_root *ro
 	 */
 	vma_interval_tree_foreach(vma, root, start, end ? end : ULONG_MAX) {
 		unsigned long v_offset;
+		unsigned long v_end;
 
 		/*
 		 * Can the expression below overflow on 32-bit arches?
@@ -475,15 +476,17 @@ hugetlb_vmdelete_list(struct rb_root *ro
 		else
 			v_offset = 0;
 
-		if (end) {
-			end = ((end - start) << PAGE_SHIFT) +
-			       vma->vm_start + v_offset;
-			if (end > vma->vm_end)
-				end = vma->vm_end;
-		} else
-			end = vma->vm_end;
+		if (!end)
+			v_end = vma->vm_end;
+		else {
+			v_end = ((end - vma->vm_pgoff) << PAGE_SHIFT)
+							+ vma->vm_start;
+			if (v_end > vma->vm_end)
+				v_end = vma->vm_end;
+		}
 
-		unmap_hugepage_range(vma, vma->vm_start + v_offset, end, NULL);
+		unmap_hugepage_range(vma, vma->vm_start + v_offset, v_end,
+									NULL);
 	}
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/inode.c linux-libre-4.4.107-gnu/fs/inode.c
--- linux-libre-4.4-gnu/fs/inode.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/inode.c	2017-12-20 04:05:01.000000000 -0500
@@ -1733,8 +1733,8 @@ static int __remove_privs(struct dentry
  */
 int file_remove_privs(struct file *file)
 {
-	struct dentry *dentry = file->f_path.dentry;
-	struct inode *inode = d_inode(dentry);
+	struct dentry *dentry = file_dentry(file);
+	struct inode *inode = file_inode(file);
 	int kill;
 	int error = 0;
 
@@ -1742,7 +1742,7 @@ int file_remove_privs(struct file *file)
 	if (IS_NOSEC(inode))
 		return 0;
 
-	kill = file_needs_remove_privs(file);
+	kill = dentry_needs_remove_privs(dentry);
 	if (kill < 0)
 		return kill;
 	if (kill)
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/isofs/inode.c linux-libre-4.4.107-gnu/fs/isofs/inode.c
--- linux-libre-4.4-gnu/fs/isofs/inode.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/isofs/inode.c	2017-12-20 04:05:01.000000000 -0500
@@ -690,6 +690,11 @@ static int isofs_fill_super(struct super
 	pri_bh = NULL;
 
 root_found:
+	/* We don't support read-write mounts */
+	if (!(s->s_flags & MS_RDONLY)) {
+		error = -EACCES;
+		goto out_freebh;
+	}
 
 	if (joliet_level && (pri == NULL || !opt.rock)) {
 		/* This is the case of Joliet with the norock mount flag.
@@ -1503,9 +1508,6 @@ struct inode *__isofs_iget(struct super_
 static struct dentry *isofs_mount(struct file_system_type *fs_type,
 	int flags, const char *dev_name, void *data)
 {
-	/* We don't support read-write mounts */
-	if (!(flags & MS_RDONLY))
-		return ERR_PTR(-EACCES);
 	return mount_bdev(fs_type, flags, dev_name, data, isofs_fill_super);
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/isofs/isofs.h linux-libre-4.4.107-gnu/fs/isofs/isofs.h
--- linux-libre-4.4-gnu/fs/isofs/isofs.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/isofs/isofs.h	2017-12-20 04:05:01.000000000 -0500
@@ -103,7 +103,7 @@ static inline unsigned int isonum_733(ch
 	/* Ignore bigendian datum due to broken mastering programs */
 	return get_unaligned_le32(p);
 }
-extern int iso_date(char *, int);
+extern int iso_date(u8 *, int);
 
 struct inode;		/* To make gcc happy */
 
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/isofs/rock.c linux-libre-4.4.107-gnu/fs/isofs/rock.c
--- linux-libre-4.4-gnu/fs/isofs/rock.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/isofs/rock.c	2017-12-20 04:05:01.000000000 -0500
@@ -203,6 +203,8 @@ int get_rock_ridge_filename(struct iso_d
 	int retnamlen = 0;
 	int truncate = 0;
 	int ret = 0;
+	char *p;
+	int len;
 
 	if (!ISOFS_SB(inode->i_sb)->s_rock)
 		return 0;
@@ -267,12 +269,17 @@ repeat:
 					rr->u.NM.flags);
 				break;
 			}
-			if ((strlen(retname) + rr->len - 5) >= 254) {
+			len = rr->len - 5;
+			if (retnamlen + len >= 254) {
 				truncate = 1;
 				break;
 			}
-			strncat(retname, rr->u.NM.name, rr->len - 5);
-			retnamlen += rr->len - 5;
+			p = memchr(rr->u.NM.name, '\0', len);
+			if (unlikely(p))
+				len = p - rr->u.NM.name;
+			memcpy(retname + retnamlen, rr->u.NM.name, len);
+			retnamlen += len;
+			retname[retnamlen] = '\0';
 			break;
 		case SIG('R', 'E'):
 			kfree(rs.buffer);
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/isofs/rock.h linux-libre-4.4.107-gnu/fs/isofs/rock.h
--- linux-libre-4.4-gnu/fs/isofs/rock.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/isofs/rock.h	2017-12-20 04:05:01.000000000 -0500
@@ -65,7 +65,7 @@ struct RR_PL_s {
 };
 
 struct stamp {
-	char time[7];
+	__u8 time[7];		/* actually 6 unsigned, 1 signed */
 } __attribute__ ((packed));
 
 struct RR_TF_s {
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/isofs/util.c linux-libre-4.4.107-gnu/fs/isofs/util.c
--- linux-libre-4.4-gnu/fs/isofs/util.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/isofs/util.c	2017-12-20 04:05:01.000000000 -0500
@@ -15,7 +15,7 @@
  * to GMT.  Thus  we should always be correct.
  */
 
-int iso_date(char * p, int flag)
+int iso_date(u8 *p, int flag)
 {
 	int year, month, day, hour, minute, second, tz;
 	int crtime;
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/jbd2/commit.c linux-libre-4.4.107-gnu/fs/jbd2/commit.c
--- linux-libre-4.4-gnu/fs/jbd2/commit.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/jbd2/commit.c	2017-12-20 04:05:01.000000000 -0500
@@ -124,7 +124,7 @@ static int journal_submit_commit_record(
 	struct commit_header *tmp;
 	struct buffer_head *bh;
 	int ret;
-	struct timespec now = current_kernel_time();
+	struct timespec64 now = current_kernel_time64();
 
 	*cbh = NULL;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/jbd2/journal.c linux-libre-4.4.107-gnu/fs/jbd2/journal.c
--- linux-libre-4.4-gnu/fs/jbd2/journal.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/jbd2/journal.c	2017-12-20 04:05:01.000000000 -0500
@@ -1408,11 +1408,12 @@ out:
 /**
  * jbd2_mark_journal_empty() - Mark on disk journal as empty.
  * @journal: The journal to update.
+ * @write_op: With which operation should we write the journal sb
  *
  * Update a journal's dynamic superblock fields to show that journal is empty.
  * Write updated superblock to disk waiting for IO to complete.
  */
-static void jbd2_mark_journal_empty(journal_t *journal)
+static void jbd2_mark_journal_empty(journal_t *journal, int write_op)
 {
 	journal_superblock_t *sb = journal->j_superblock;
 
@@ -1430,7 +1431,7 @@ static void jbd2_mark_journal_empty(jour
 	sb->s_start    = cpu_to_be32(0);
 	read_unlock(&journal->j_state_lock);
 
-	jbd2_write_superblock(journal, WRITE_FUA);
+	jbd2_write_superblock(journal, write_op);
 
 	/* Log is no longer empty */
 	write_lock(&journal->j_state_lock);
@@ -1716,7 +1717,13 @@ int jbd2_journal_destroy(journal_t *jour
 	if (journal->j_sb_buffer) {
 		if (!is_journal_aborted(journal)) {
 			mutex_lock(&journal->j_checkpoint_mutex);
-			jbd2_mark_journal_empty(journal);
+
+			write_lock(&journal->j_state_lock);
+			journal->j_tail_sequence =
+				++journal->j_transaction_sequence;
+			write_unlock(&journal->j_state_lock);
+
+			jbd2_mark_journal_empty(journal, WRITE_FLUSH_FUA);
 			mutex_unlock(&journal->j_checkpoint_mutex);
 		} else
 			err = -EIO;
@@ -1975,7 +1982,7 @@ int jbd2_journal_flush(journal_t *journa
 	 * the magic code for a fully-recovered superblock.  Any future
 	 * commits of data to the journal will restore the current
 	 * s_start value. */
-	jbd2_mark_journal_empty(journal);
+	jbd2_mark_journal_empty(journal, WRITE_FUA);
 	mutex_unlock(&journal->j_checkpoint_mutex);
 	write_lock(&journal->j_state_lock);
 	J_ASSERT(!journal->j_running_transaction);
@@ -2021,7 +2028,7 @@ int jbd2_journal_wipe(journal_t *journal
 	if (write) {
 		/* Lock to make assertions happy... */
 		mutex_lock(&journal->j_checkpoint_mutex);
-		jbd2_mark_journal_empty(journal);
+		jbd2_mark_journal_empty(journal, WRITE_FUA);
 		mutex_unlock(&journal->j_checkpoint_mutex);
 	}
 
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/jbd2/transaction.c linux-libre-4.4.107-gnu/fs/jbd2/transaction.c
--- linux-libre-4.4-gnu/fs/jbd2/transaction.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/jbd2/transaction.c	2017-12-20 04:05:01.000000000 -0500
@@ -1156,6 +1156,7 @@ int jbd2_journal_get_create_access(handl
 		JBUFFER_TRACE(jh, "file as BJ_Reserved");
 		spin_lock(&journal->j_list_lock);
 		__jbd2_journal_file_buffer(jh, transaction, BJ_Reserved);
+		spin_unlock(&journal->j_list_lock);
 	} else if (jh->b_transaction == journal->j_committing_transaction) {
 		/* first access by this transaction */
 		jh->b_modified = 0;
@@ -1163,8 +1164,8 @@ int jbd2_journal_get_create_access(handl
 		JBUFFER_TRACE(jh, "set next transaction");
 		spin_lock(&journal->j_list_lock);
 		jh->b_next_transaction = transaction;
+		spin_unlock(&journal->j_list_lock);
 	}
-	spin_unlock(&journal->j_list_lock);
 	jbd_unlock_bh_state(bh);
 
 	/*
@@ -1875,7 +1876,9 @@ static void __jbd2_journal_temp_unlink_b
 
 	__blist_del_buffer(list, jh);
 	jh->b_jlist = BJ_None;
-	if (test_clear_buffer_jbddirty(bh))
+	if (transaction && is_journal_aborted(transaction->t_journal))
+		clear_buffer_jbddirty(bh);
+	else if (test_clear_buffer_jbddirty(bh))
 		mark_buffer_dirty(bh);	/* Expose it to the VM */
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/jffs2/acl.c linux-libre-4.4.107-gnu/fs/jffs2/acl.c
--- linux-libre-4.4-gnu/fs/jffs2/acl.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/jffs2/acl.c	2017-12-20 04:05:01.000000000 -0500
@@ -235,9 +235,10 @@ int jffs2_set_acl(struct inode *inode, s
 	case ACL_TYPE_ACCESS:
 		xprefix = JFFS2_XPREFIX_ACL_ACCESS;
 		if (acl) {
-			umode_t mode = inode->i_mode;
-			rc = posix_acl_equiv_mode(acl, &mode);
-			if (rc < 0)
+			umode_t mode;
+
+			rc = posix_acl_update_mode(inode, &mode, &acl);
+			if (rc)
 				return rc;
 			if (inode->i_mode != mode) {
 				struct iattr attr;
@@ -249,8 +250,6 @@ int jffs2_set_acl(struct inode *inode, s
 				if (rc < 0)
 					return rc;
 			}
-			if (rc == 0)
-				acl = NULL;
 		}
 		break;
 	case ACL_TYPE_DEFAULT:
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/jffs2/build.c linux-libre-4.4.107-gnu/fs/jffs2/build.c
--- linux-libre-4.4-gnu/fs/jffs2/build.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/jffs2/build.c	2017-12-20 04:05:01.000000000 -0500
@@ -49,7 +49,8 @@ next_inode(int *i, struct jffs2_inode_ca
 
 
 static void jffs2_build_inode_pass1(struct jffs2_sb_info *c,
-				    struct jffs2_inode_cache *ic)
+				    struct jffs2_inode_cache *ic,
+				    int *dir_hardlinks)
 {
 	struct jffs2_full_dirent *fd;
 
@@ -68,19 +69,21 @@ static void jffs2_build_inode_pass1(stru
 			dbg_fsbuild("child \"%s\" (ino #%u) of dir ino #%u doesn't exist!\n",
 				  fd->name, fd->ino, ic->ino);
 			jffs2_mark_node_obsolete(c, fd->raw);
+			/* Clear the ic/raw union so it doesn't cause problems later. */
+			fd->ic = NULL;
 			continue;
 		}
 
+		/* From this point, fd->raw is no longer used so we can set fd->ic */
+		fd->ic = child_ic;
+		child_ic->pino_nlink++;
+		/* If we appear (at this stage) to have hard-linked directories,
+		 * set a flag to trigger a scan later */
 		if (fd->type == DT_DIR) {
-			if (child_ic->pino_nlink) {
-				JFFS2_ERROR("child dir \"%s\" (ino #%u) of dir ino #%u appears to be a hard link\n",
-					    fd->name, fd->ino, ic->ino);
-				/* TODO: What do we do about it? */
-			} else {
-				child_ic->pino_nlink = ic->ino;
-			}
-		} else
-			child_ic->pino_nlink++;
+			child_ic->flags |= INO_FLAGS_IS_DIR;
+			if (child_ic->pino_nlink > 1)
+				*dir_hardlinks = 1;
+		}
 
 		dbg_fsbuild("increased nlink for child \"%s\" (ino #%u)\n", fd->name, fd->ino);
 		/* Can't free scan_dents so far. We might need them in pass 2 */
@@ -94,8 +97,7 @@ static void jffs2_build_inode_pass1(stru
 */
 static int jffs2_build_filesystem(struct jffs2_sb_info *c)
 {
-	int ret;
-	int i;
+	int ret, i, dir_hardlinks = 0;
 	struct jffs2_inode_cache *ic;
 	struct jffs2_full_dirent *fd;
 	struct jffs2_full_dirent *dead_fds = NULL;
@@ -119,7 +121,7 @@ static int jffs2_build_filesystem(struct
 	/* Now scan the directory tree, increasing nlink according to every dirent found. */
 	for_each_inode(i, c, ic) {
 		if (ic->scan_dents) {
-			jffs2_build_inode_pass1(c, ic);
+			jffs2_build_inode_pass1(c, ic, &dir_hardlinks);
 			cond_resched();
 		}
 	}
@@ -155,6 +157,20 @@ static int jffs2_build_filesystem(struct
 	}
 
 	dbg_fsbuild("pass 2a complete\n");
+
+	if (dir_hardlinks) {
+		/* If we detected directory hardlinks earlier, *hopefully*
+		 * they are gone now because some of the links were from
+		 * dead directories which still had some old dirents lying
+		 * around and not yet garbage-collected, but which have
+		 * been discarded above. So clear the pino_nlink field
+		 * in each directory, so that the final scan below can
+		 * print appropriate warnings. */
+		for_each_inode(i, c, ic) {
+			if (ic->flags & INO_FLAGS_IS_DIR)
+				ic->pino_nlink = 0;
+		}
+	}
 	dbg_fsbuild("freeing temporary data structures\n");
 
 	/* Finally, we can scan again and free the dirent structs */
@@ -162,6 +178,33 @@ static int jffs2_build_filesystem(struct
 		while(ic->scan_dents) {
 			fd = ic->scan_dents;
 			ic->scan_dents = fd->next;
+			/* We do use the pino_nlink field to count nlink of
+			 * directories during fs build, so set it to the
+			 * parent ino# now. Now that there's hopefully only
+			 * one. */
+			if (fd->type == DT_DIR) {
+				if (!fd->ic) {
+					/* We'll have complained about it and marked the coresponding
+					   raw node obsolete already. Just skip it. */
+					continue;
+				}
+
+				/* We *have* to have set this in jffs2_build_inode_pass1() */
+				BUG_ON(!(fd->ic->flags & INO_FLAGS_IS_DIR));
+
+				/* We clear ic->pino_nlink ∀ directories' ic *only* if dir_hardlinks
+				 * is set. Otherwise, we know this should never trigger anyway, so
+				 * we don't do the check. And ic->pino_nlink still contains the nlink
+				 * value (which is 1). */
+				if (dir_hardlinks && fd->ic->pino_nlink) {
+					JFFS2_ERROR("child dir \"%s\" (ino #%u) of dir ino #%u is also hard linked from dir ino #%u\n",
+						    fd->name, fd->ino, ic->ino, fd->ic->pino_nlink);
+					/* Should we unlink it from its previous parent? */
+				}
+
+				/* For directories, ic->pino_nlink holds that parent inode # */
+				fd->ic->pino_nlink = ic->ino;
+			}
 			jffs2_free_full_dirent(fd);
 		}
 		ic->scan_dents = NULL;
@@ -240,11 +283,7 @@ static void jffs2_build_remove_unlinked_
 
 			/* Reduce nlink of the child. If it's now zero, stick it on the
 			   dead_fds list to be cleaned up later. Else just free the fd */
-
-			if (fd->type == DT_DIR)
-				child_ic->pino_nlink = 0;
-			else
-				child_ic->pino_nlink--;
+			child_ic->pino_nlink--;
 
 			if (!child_ic->pino_nlink) {
 				dbg_fsbuild("inode #%u (\"%s\") now has no links; adding to dead_fds list.\n",
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/jffs2/dir.c linux-libre-4.4.107-gnu/fs/jffs2/dir.c
--- linux-libre-4.4-gnu/fs/jffs2/dir.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/jffs2/dir.c	2017-12-20 04:05:01.000000000 -0500
@@ -843,9 +843,14 @@ static int jffs2_rename (struct inode *o
 
 		pr_notice("%s(): Link succeeded, unlink failed (err %d). You now have a hard link\n",
 			  __func__, ret);
-		/* Might as well let the VFS know */
-		d_instantiate(new_dentry, d_inode(old_dentry));
-		ihold(d_inode(old_dentry));
+		/*
+		 * We can't keep the target in dcache after that.
+		 * For one thing, we can't afford dentry aliases for directories.
+		 * For another, if there was a victim, we _can't_ set new inode
+		 * for that sucker and we have to trigger mount eviction - the
+		 * caller won't do it on its own since we are returning an error.
+		 */
+		d_invalidate(new_dentry);
 		new_dir_i->i_mtime = new_dir_i->i_ctime = ITIME(now);
 		return ret;
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/jffs2/file.c linux-libre-4.4.107-gnu/fs/jffs2/file.c
--- linux-libre-4.4-gnu/fs/jffs2/file.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/jffs2/file.c	2017-12-20 04:05:01.000000000 -0500
@@ -137,39 +137,33 @@ static int jffs2_write_begin(struct file
 	struct page *pg;
 	struct inode *inode = mapping->host;
 	struct jffs2_inode_info *f = JFFS2_INODE_INFO(inode);
-	struct jffs2_sb_info *c = JFFS2_SB_INFO(inode->i_sb);
-	struct jffs2_raw_inode ri;
-	uint32_t alloc_len = 0;
 	pgoff_t index = pos >> PAGE_CACHE_SHIFT;
 	uint32_t pageofs = index << PAGE_CACHE_SHIFT;
 	int ret = 0;
 
-	jffs2_dbg(1, "%s()\n", __func__);
-
-	if (pageofs > inode->i_size) {
-		ret = jffs2_reserve_space(c, sizeof(ri), &alloc_len,
-					  ALLOC_NORMAL, JFFS2_SUMMARY_INODE_SIZE);
-		if (ret)
-			return ret;
-	}
-
-	mutex_lock(&f->sem);
 	pg = grab_cache_page_write_begin(mapping, index, flags);
-	if (!pg) {
-		if (alloc_len)
-			jffs2_complete_reservation(c);
-		mutex_unlock(&f->sem);
+	if (!pg)
 		return -ENOMEM;
-	}
 	*pagep = pg;
 
-	if (alloc_len) {
+	jffs2_dbg(1, "%s()\n", __func__);
+
+	if (pageofs > inode->i_size) {
 		/* Make new hole frag from old EOF to new page */
+		struct jffs2_sb_info *c = JFFS2_SB_INFO(inode->i_sb);
+		struct jffs2_raw_inode ri;
 		struct jffs2_full_dnode *fn;
+		uint32_t alloc_len;
 
 		jffs2_dbg(1, "Writing new hole frag 0x%x-0x%x between current EOF and new page\n",
 			  (unsigned int)inode->i_size, pageofs);
 
+		ret = jffs2_reserve_space(c, sizeof(ri), &alloc_len,
+					  ALLOC_NORMAL, JFFS2_SUMMARY_INODE_SIZE);
+		if (ret)
+			goto out_page;
+
+		mutex_lock(&f->sem);
 		memset(&ri, 0, sizeof(ri));
 
 		ri.magic = cpu_to_je16(JFFS2_MAGIC_BITMASK);
@@ -196,6 +190,7 @@ static int jffs2_write_begin(struct file
 		if (IS_ERR(fn)) {
 			ret = PTR_ERR(fn);
 			jffs2_complete_reservation(c);
+			mutex_unlock(&f->sem);
 			goto out_page;
 		}
 		ret = jffs2_add_full_dnode_to_inode(c, f, fn);
@@ -210,10 +205,12 @@ static int jffs2_write_begin(struct file
 			jffs2_mark_node_obsolete(c, fn->raw);
 			jffs2_free_full_dnode(fn);
 			jffs2_complete_reservation(c);
+			mutex_unlock(&f->sem);
 			goto out_page;
 		}
 		jffs2_complete_reservation(c);
 		inode->i_size = pageofs;
+		mutex_unlock(&f->sem);
 	}
 
 	/*
@@ -222,18 +219,18 @@ static int jffs2_write_begin(struct file
 	 * case of a short-copy.
 	 */
 	if (!PageUptodate(pg)) {
+		mutex_lock(&f->sem);
 		ret = jffs2_do_readpage_nolock(inode, pg);
+		mutex_unlock(&f->sem);
 		if (ret)
 			goto out_page;
 	}
-	mutex_unlock(&f->sem);
 	jffs2_dbg(1, "end write_begin(). pg->flags %lx\n", pg->flags);
 	return ret;
 
 out_page:
 	unlock_page(pg);
 	page_cache_release(pg);
-	mutex_unlock(&f->sem);
 	return ret;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/jffs2/gc.c linux-libre-4.4.107-gnu/fs/jffs2/gc.c
--- linux-libre-4.4-gnu/fs/jffs2/gc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/jffs2/gc.c	2017-12-20 04:05:01.000000000 -0500
@@ -1296,14 +1296,17 @@ static int jffs2_garbage_collect_dnode(s
 		BUG_ON(start > orig_start);
 	}
 
-	/* First, use readpage() to read the appropriate page into the page cache */
-	/* Q: What happens if we actually try to GC the _same_ page for which commit_write()
-	 *    triggered garbage collection in the first place?
-	 * A: I _think_ it's OK. read_cache_page shouldn't deadlock, we'll write out the
-	 *    page OK. We'll actually write it out again in commit_write, which is a little
-	 *    suboptimal, but at least we're correct.
-	 */
+	/* The rules state that we must obtain the page lock *before* f->sem, so
+	 * drop f->sem temporarily. Since we also hold c->alloc_sem, nothing's
+	 * actually going to *change* so we're safe; we only allow reading.
+	 *
+	 * It is important to note that jffs2_write_begin() will ensure that its
+	 * page is marked Uptodate before allocating space. That means that if we
+	 * end up here trying to GC the *same* page that jffs2_write_begin() is
+	 * trying to write out, read_cache_page() will not deadlock. */
+	mutex_unlock(&f->sem);
 	pg_ptr = jffs2_gc_fetch_page(c, f, start, &pg);
+	mutex_lock(&f->sem);
 
 	if (IS_ERR(pg_ptr)) {
 		pr_warn("read_cache_page() returned error: %ld\n",
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/jffs2/nodelist.h linux-libre-4.4.107-gnu/fs/jffs2/nodelist.h
--- linux-libre-4.4-gnu/fs/jffs2/nodelist.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/jffs2/nodelist.h	2017-12-20 04:05:01.000000000 -0500
@@ -194,6 +194,7 @@ struct jffs2_inode_cache {
 #define INO_STATE_CLEARING	6	/* In clear_inode() */
 
 #define INO_FLAGS_XATTR_CHECKED	0x01	/* has no duplicate xattr_ref */
+#define INO_FLAGS_IS_DIR	0x02	/* is a directory */
 
 #define RAWNODE_CLASS_INODE_CACHE	0
 #define RAWNODE_CLASS_XATTR_DATUM	1
@@ -249,7 +250,10 @@ struct jffs2_readinode_info
 
 struct jffs2_full_dirent
 {
-	struct jffs2_raw_node_ref *raw;
+	union {
+		struct jffs2_raw_node_ref *raw;
+		struct jffs2_inode_cache *ic; /* Just during part of build */
+	};
 	struct jffs2_full_dirent *next;
 	uint32_t version;
 	uint32_t ino; /* == zero for unlink */
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/jffs2/README.Locking linux-libre-4.4.107-gnu/fs/jffs2/README.Locking
--- linux-libre-4.4-gnu/fs/jffs2/README.Locking	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/jffs2/README.Locking	2017-12-20 04:05:01.000000000 -0500
@@ -2,10 +2,6 @@
 	JFFS2 LOCKING DOCUMENTATION
 	---------------------------
 
-At least theoretically, JFFS2 does not require the Big Kernel Lock
-(BKL), which was always helpfully obtained for it by Linux 2.4 VFS
-code. It has its own locking, as described below.
-
 This document attempts to describe the existing locking rules for
 JFFS2. It is not expected to remain perfectly up to date, but ought to
 be fairly close.
@@ -69,6 +65,7 @@ Ordering constraints:
 	   any f->sem held.
 	2. Never attempt to lock two file mutexes in one thread.
 	   No ordering rules have been made for doing so.
+	3. Never lock a page cache page with f->sem held.
 
 
 	erase_completion_lock spinlock
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/jfs/acl.c linux-libre-4.4.107-gnu/fs/jfs/acl.c
--- linux-libre-4.4-gnu/fs/jfs/acl.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/jfs/acl.c	2017-12-20 04:05:01.000000000 -0500
@@ -84,13 +84,11 @@ static int __jfs_set_acl(tid_t tid, stru
 	case ACL_TYPE_ACCESS:
 		ea_name = POSIX_ACL_XATTR_ACCESS;
 		if (acl) {
-			rc = posix_acl_equiv_mode(acl, &inode->i_mode);
-			if (rc < 0)
+			rc = posix_acl_update_mode(inode, &inode->i_mode, &acl);
+			if (rc)
 				return rc;
 			inode->i_ctime = CURRENT_TIME;
 			mark_inode_dirty(inode);
-			if (rc == 0)
-				acl = NULL;
 		}
 		break;
 	case ACL_TYPE_DEFAULT:
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/jfs/super.c linux-libre-4.4.107-gnu/fs/jfs/super.c
--- linux-libre-4.4-gnu/fs/jfs/super.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/jfs/super.c	2017-12-20 04:05:01.000000000 -0500
@@ -758,7 +758,7 @@ static ssize_t jfs_quota_read(struct sup
 				sb->s_blocksize - offset : toread;
 
 		tmp_bh.b_state = 0;
-		tmp_bh.b_size = 1 << inode->i_blkbits;
+		tmp_bh.b_size = i_blocksize(inode);
 		err = jfs_get_block(inode, blk, &tmp_bh, 0);
 		if (err)
 			return err;
@@ -798,7 +798,7 @@ static ssize_t jfs_quota_write(struct su
 				sb->s_blocksize - offset : towrite;
 
 		tmp_bh.b_state = 0;
-		tmp_bh.b_size = 1 << inode->i_blkbits;
+		tmp_bh.b_size = i_blocksize(inode);
 		err = jfs_get_block(inode, blk, &tmp_bh, 1);
 		if (err)
 			goto out;
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/kernfs/file.c linux-libre-4.4.107-gnu/fs/kernfs/file.c
--- linux-libre-4.4-gnu/fs/kernfs/file.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/kernfs/file.c	2017-12-20 04:05:01.000000000 -0500
@@ -833,21 +833,35 @@ repeat:
 	mutex_lock(&kernfs_mutex);
 
 	list_for_each_entry(info, &kernfs_root(kn)->supers, node) {
+		struct kernfs_node *parent;
 		struct inode *inode;
-		struct dentry *dentry;
 
+		/*
+		 * We want fsnotify_modify() on @kn but as the
+		 * modifications aren't originating from userland don't
+		 * have the matching @file available.  Look up the inodes
+		 * and generate the events manually.
+		 */
 		inode = ilookup(info->sb, kn->ino);
 		if (!inode)
 			continue;
 
-		dentry = d_find_any_alias(inode);
-		if (dentry) {
-			fsnotify_parent(NULL, dentry, FS_MODIFY);
-			fsnotify(inode, FS_MODIFY, inode, FSNOTIFY_EVENT_INODE,
-				 NULL, 0);
-			dput(dentry);
+		parent = kernfs_get_parent(kn);
+		if (parent) {
+			struct inode *p_inode;
+
+			p_inode = ilookup(info->sb, parent->ino);
+			if (p_inode) {
+				fsnotify(p_inode, FS_MODIFY | FS_EVENT_ON_CHILD,
+					 inode, FSNOTIFY_EVENT_INODE, kn->name, 0);
+				iput(p_inode);
+			}
+
+			kernfs_put(parent);
 		}
 
+		fsnotify(inode, FS_MODIFY, inode, FSNOTIFY_EVENT_INODE,
+			 kn->name, 0);
 		iput(inode);
 	}
 
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/locks.c linux-libre-4.4.107-gnu/fs/locks.c
--- linux-libre-4.4-gnu/fs/locks.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/locks.c	2017-12-20 04:05:01.000000000 -0500
@@ -1602,7 +1602,7 @@ generic_add_lease(struct file *filp, lon
 {
 	struct file_lock *fl, *my_fl = NULL, *lease;
 	struct dentry *dentry = filp->f_path.dentry;
-	struct inode *inode = dentry->d_inode;
+	struct inode *inode = file_inode(filp);
 	struct file_lock_context *ctx;
 	bool is_deleg = (*flp)->fl_flags & FL_DELEG;
 	int error;
@@ -2182,7 +2182,6 @@ int fcntl_setlk(unsigned int fd, struct
 		goto out;
 	}
 
-again:
 	error = flock_to_posix_lock(filp, file_lock, &flock);
 	if (error)
 		goto out;
@@ -2224,19 +2223,22 @@ again:
 	 * Attempt to detect a close/fcntl race and recover by
 	 * releasing the lock that was just acquired.
 	 */
-	/*
-	 * we need that spin_lock here - it prevents reordering between
-	 * update of i_flctx->flc_posix and check for it done in close().
-	 * rcu_read_lock() wouldn't do.
-	 */
-	spin_lock(&current->files->file_lock);
-	f = fcheck(fd);
-	spin_unlock(&current->files->file_lock);
-	if (!error && f != filp && flock.l_type != F_UNLCK) {
-		flock.l_type = F_UNLCK;
-		goto again;
+	if (!error && file_lock->fl_type != F_UNLCK) {
+		/*
+		 * We need that spin_lock here - it prevents reordering between
+		 * update of i_flctx->flc_posix and check for it done in
+		 * close(). rcu_read_lock() wouldn't do.
+		 */
+		spin_lock(&current->files->file_lock);
+		f = fcheck(fd);
+		spin_unlock(&current->files->file_lock);
+		if (f != filp) {
+			file_lock->fl_type = F_UNLCK;
+			error = do_lock_file_wait(filp, cmd, file_lock);
+			WARN_ON_ONCE(error);
+			error = -EBADF;
+		}
 	}
-
 out:
 	locks_free_lock(file_lock);
 	return error;
@@ -2322,7 +2324,6 @@ int fcntl_setlk64(unsigned int fd, struc
 		goto out;
 	}
 
-again:
 	error = flock64_to_posix_lock(filp, file_lock, &flock);
 	if (error)
 		goto out;
@@ -2364,14 +2365,22 @@ again:
 	 * Attempt to detect a close/fcntl race and recover by
 	 * releasing the lock that was just acquired.
 	 */
-	spin_lock(&current->files->file_lock);
-	f = fcheck(fd);
-	spin_unlock(&current->files->file_lock);
-	if (!error && f != filp && flock.l_type != F_UNLCK) {
-		flock.l_type = F_UNLCK;
-		goto again;
+	if (!error && file_lock->fl_type != F_UNLCK) {
+		/*
+		 * We need that spin_lock here - it prevents reordering between
+		 * update of i_flctx->flc_posix and check for it done in
+		 * close(). rcu_read_lock() wouldn't do.
+		 */
+		spin_lock(&current->files->file_lock);
+		f = fcheck(fd);
+		spin_unlock(&current->files->file_lock);
+		if (f != filp) {
+			file_lock->fl_type = F_UNLCK;
+			error = do_lock_file_wait(filp, cmd, file_lock);
+			WARN_ON_ONCE(error);
+			error = -EBADF;
+		}
 	}
-
 out:
 	locks_free_lock(file_lock);
 	return error;
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/mount.h linux-libre-4.4.107-gnu/fs/mount.h
--- linux-libre-4.4-gnu/fs/mount.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/mount.h	2017-12-20 04:05:01.000000000 -0500
@@ -13,6 +13,8 @@ struct mnt_namespace {
 	u64			seq;	/* Sequence number to prevent loops */
 	wait_queue_head_t poll;
 	u64 event;
+	unsigned int		mounts; /* # of mounts in the namespace */
+	unsigned int		pending_mounts;
 };
 
 struct mnt_pcp {
@@ -55,6 +57,7 @@ struct mount {
 	struct mnt_namespace *mnt_ns;	/* containing namespace */
 	struct mountpoint *mnt_mp;	/* where is it mounted */
 	struct hlist_node mnt_mp_list;	/* list mounts with the same mountpoint */
+	struct list_head mnt_umounting; /* list entry for umount propagation */
 #ifdef CONFIG_FSNOTIFY
 	struct hlist_head mnt_fsnotify_marks;
 	__u32 mnt_fsnotify_mask;
@@ -86,7 +89,6 @@ static inline int is_mounted(struct vfsm
 }
 
 extern struct mount *__lookup_mnt(struct vfsmount *, struct dentry *);
-extern struct mount *__lookup_mnt_last(struct vfsmount *, struct dentry *);
 
 extern int __legitimize_mnt(struct vfsmount *, unsigned);
 extern bool legitimize_mnt(struct vfsmount *, unsigned);
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/mpage.c linux-libre-4.4.107-gnu/fs/mpage.c
--- linux-libre-4.4-gnu/fs/mpage.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/mpage.c	2017-12-20 04:05:01.000000000 -0500
@@ -111,7 +111,7 @@ map_buffer_to_page(struct page *page, st
 			SetPageUptodate(page);    
 			return;
 		}
-		create_empty_buffers(page, 1 << inode->i_blkbits, 0);
+		create_empty_buffers(page, i_blocksize(inode), 0);
 	}
 	head = page_buffers(page);
 	page_bh = head;
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/namei.c linux-libre-4.4.107-gnu/fs/namei.c
--- linux-libre-4.4-gnu/fs/namei.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/namei.c	2017-12-20 04:05:01.000000000 -0500
@@ -887,6 +887,7 @@ static inline int may_follow_link(struct
 {
 	const struct inode *inode;
 	const struct inode *parent;
+	kuid_t puid;
 
 	if (!sysctl_protected_symlinks)
 		return 0;
@@ -902,7 +903,8 @@ static inline int may_follow_link(struct
 		return 0;
 
 	/* Allowed if parent directory and link owner match. */
-	if (uid_eq(parent->i_uid, inode->i_uid))
+	puid = parent->i_uid;
+	if (uid_valid(puid) && uid_eq(puid, inode->i_uid))
 		return 0;
 
 	if (nd->flags & LOOKUP_RCU)
@@ -1711,6 +1713,11 @@ static inline int should_follow_link(str
 		return 0;
 	if (!follow)
 		return 0;
+	/* make sure that d_is_symlink above matches inode */
+	if (nd->flags & LOOKUP_RCU) {
+		if (read_seqcount_retry(&link->dentry->d_seq, seq))
+			return -ECHILD;
+	}
 	return pick_link(nd, link, inode, seq);
 }
 
@@ -1742,11 +1749,11 @@ static int walk_component(struct nameida
 		if (err < 0)
 			return err;
 
-		inode = d_backing_inode(path.dentry);
 		seq = 0;	/* we are already out of RCU mode */
 		err = -ENOENT;
 		if (d_is_negative(path.dentry))
 			goto out_path_put;
+		inode = d_backing_inode(path.dentry);
 	}
 
 	if (flags & WALK_PUT)
@@ -2901,22 +2908,10 @@ no_open:
 		dentry = lookup_real(dir, dentry, nd->flags);
 		if (IS_ERR(dentry))
 			return PTR_ERR(dentry);
-
-		if (create_error) {
-			int open_flag = op->open_flag;
-
-			error = create_error;
-			if ((open_flag & O_EXCL)) {
-				if (!dentry->d_inode)
-					goto out;
-			} else if (!dentry->d_inode) {
-				goto out;
-			} else if ((open_flag & O_TRUNC) &&
-				   d_is_reg(dentry)) {
-				goto out;
-			}
-			/* will fail later, go on to get the right error */
-		}
+	}
+	if (create_error && !dentry->d_inode) {
+		error = create_error;
+		goto out;
 	}
 looked_up:
 	path->dentry = dentry;
@@ -3130,12 +3125,12 @@ retry_lookup:
 		return error;
 
 	BUG_ON(nd->flags & LOOKUP_RCU);
-	inode = d_backing_inode(path.dentry);
 	seq = 0;	/* out of RCU mode, so the value doesn't matter */
 	if (unlikely(d_is_negative(path.dentry))) {
 		path_to_nameidata(&path, nd);
 		return -ENOENT;
 	}
+	inode = d_backing_inode(path.dentry);
 finish_lookup:
 	if (nd->depth)
 		put_link(nd);
@@ -3144,11 +3139,6 @@ finish_lookup:
 	if (unlikely(error))
 		return error;
 
-	if (unlikely(d_is_symlink(path.dentry)) && !(open_flag & O_PATH)) {
-		path_to_nameidata(&path, nd);
-		return -ELOOP;
-	}
-
 	if ((nd->flags & LOOKUP_RCU) || nd->path.mnt != path.mnt) {
 		path_to_nameidata(&path, nd);
 	} else {
@@ -3167,6 +3157,10 @@ finish_open:
 		return error;
 	}
 	audit_inode(nd->name, nd->path.dentry, 0);
+	if (unlikely(d_is_symlink(nd->path.dentry)) && !(open_flag & O_PATH)) {
+		error = -ELOOP;
+		goto out;
+	}
 	error = -EISDIR;
 	if ((open_flag & O_CREAT) && d_is_dir(nd->path.dentry))
 		goto out;
@@ -3210,6 +3204,10 @@ opened:
 			goto exit_fput;
 	}
 out:
+	if (unlikely(error > 0)) {
+		WARN_ON(1);
+		error = -EINVAL;
+	}
 	if (got_write)
 		mnt_drop_write(nd->path.mnt);
 	path_put(&save_parent);
@@ -4181,13 +4179,17 @@ int vfs_rename(struct inode *old_dir, st
 {
 	int error;
 	bool is_dir = d_is_dir(old_dentry);
-	const unsigned char *old_name;
 	struct inode *source = old_dentry->d_inode;
 	struct inode *target = new_dentry->d_inode;
 	bool new_is_dir = false;
 	unsigned max_links = new_dir->i_sb->s_max_links;
+	struct name_snapshot old_name;
 
-	if (source == target)
+	/*
+	 * Check source == target.
+	 * On overlayfs need to look at underlying inodes.
+	 */
+	if (vfs_select_inode(old_dentry, 0) == vfs_select_inode(new_dentry, 0))
 		return 0;
 
 	error = may_delete(old_dir, old_dentry, is_dir);
@@ -4235,7 +4237,7 @@ int vfs_rename(struct inode *old_dir, st
 	if (error)
 		return error;
 
-	old_name = fsnotify_oldname_init(old_dentry->d_name.name);
+	take_dentry_name_snapshot(&old_name, old_dentry);
 	dget(new_dentry);
 	if (!is_dir || (flags & RENAME_EXCHANGE))
 		lock_two_nondirectories(source, target);
@@ -4296,14 +4298,14 @@ out:
 		mutex_unlock(&target->i_mutex);
 	dput(new_dentry);
 	if (!error) {
-		fsnotify_move(old_dir, new_dir, old_name, is_dir,
+		fsnotify_move(old_dir, new_dir, old_name.name, is_dir,
 			      !(flags & RENAME_EXCHANGE) ? target : NULL, old_dentry);
 		if (flags & RENAME_EXCHANGE) {
 			fsnotify_move(new_dir, old_dir, old_dentry->d_name.name,
 				      new_is_dir, NULL, new_dentry);
 		}
 	}
-	fsnotify_oldname_free(old_name);
+	release_dentry_name_snapshot(&old_name);
 
 	return error;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/namespace.c linux-libre-4.4.107-gnu/fs/namespace.c
--- linux-libre-4.4-gnu/fs/namespace.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/namespace.c	2017-12-20 04:05:01.000000000 -0500
@@ -27,6 +27,9 @@
 #include "pnode.h"
 #include "internal.h"
 
+/* Maximum number of mounts in a mount namespace */
+unsigned int sysctl_mount_max __read_mostly = 100000;
+
 static unsigned int m_hash_mask __read_mostly;
 static unsigned int m_hash_shift __read_mostly;
 static unsigned int mp_hash_mask __read_mostly;
@@ -234,6 +237,7 @@ static struct mount *alloc_vfsmnt(const
 		INIT_LIST_HEAD(&mnt->mnt_slave_list);
 		INIT_LIST_HEAD(&mnt->mnt_slave);
 		INIT_HLIST_NODE(&mnt->mnt_mp_list);
+		INIT_LIST_HEAD(&mnt->mnt_umounting);
 #ifdef CONFIG_FSNOTIFY
 		INIT_HLIST_HEAD(&mnt->mnt_fsnotify_marks);
 #endif
@@ -638,28 +642,6 @@ struct mount *__lookup_mnt(struct vfsmou
 }
 
 /*
- * find the last mount at @dentry on vfsmount @mnt.
- * mount_lock must be held.
- */
-struct mount *__lookup_mnt_last(struct vfsmount *mnt, struct dentry *dentry)
-{
-	struct mount *p, *res = NULL;
-	p = __lookup_mnt(mnt, dentry);
-	if (!p)
-		goto out;
-	if (!(p->mnt.mnt_flags & MNT_UMOUNT))
-		res = p;
-	hlist_for_each_entry_continue(p, mnt_hash) {
-		if (&p->mnt_parent->mnt != mnt || p->mnt_mountpoint != dentry)
-			break;
-		if (!(p->mnt.mnt_flags & MNT_UMOUNT))
-			res = p;
-	}
-out:
-	return res;
-}
-
-/*
  * lookup_mnt - Return the first child mount mounted at path
  *
  * "First" means first mounted chronologically.  If you create the
@@ -743,26 +725,50 @@ static struct mountpoint *lookup_mountpo
 	return NULL;
 }
 
-static struct mountpoint *new_mountpoint(struct dentry *dentry)
+static struct mountpoint *get_mountpoint(struct dentry *dentry)
 {
-	struct hlist_head *chain = mp_hash(dentry);
-	struct mountpoint *mp;
+	struct mountpoint *mp, *new = NULL;
 	int ret;
 
-	mp = kmalloc(sizeof(struct mountpoint), GFP_KERNEL);
-	if (!mp)
+	if (d_mountpoint(dentry)) {
+mountpoint:
+		read_seqlock_excl(&mount_lock);
+		mp = lookup_mountpoint(dentry);
+		read_sequnlock_excl(&mount_lock);
+		if (mp)
+			goto done;
+	}
+
+	if (!new)
+		new = kmalloc(sizeof(struct mountpoint), GFP_KERNEL);
+	if (!new)
 		return ERR_PTR(-ENOMEM);
 
+
+	/* Exactly one processes may set d_mounted */
 	ret = d_set_mounted(dentry);
-	if (ret) {
-		kfree(mp);
-		return ERR_PTR(ret);
-	}
 
-	mp->m_dentry = dentry;
-	mp->m_count = 1;
-	hlist_add_head(&mp->m_hash, chain);
-	INIT_HLIST_HEAD(&mp->m_list);
+	/* Someone else set d_mounted? */
+	if (ret == -EBUSY)
+		goto mountpoint;
+
+	/* The dentry is not available as a mountpoint? */
+	mp = ERR_PTR(ret);
+	if (ret)
+		goto done;
+
+	/* Add the new mountpoint to the hash table */
+	read_seqlock_excl(&mount_lock);
+	new->m_dentry = dentry;
+	new->m_count = 1;
+	hlist_add_head(&new->m_hash, mp_hash(dentry));
+	INIT_HLIST_HEAD(&new->m_list);
+	read_sequnlock_excl(&mount_lock);
+
+	mp = new;
+	new = NULL;
+done:
+	kfree(new);
 	return mp;
 }
 
@@ -855,6 +861,13 @@ void mnt_set_mountpoint(struct mount *mn
 	hlist_add_head(&child_mnt->mnt_mp_list, &mp->m_list);
 }
 
+static void __attach_mnt(struct mount *mnt, struct mount *parent)
+{
+	hlist_add_head_rcu(&mnt->mnt_hash,
+			   m_hash(&parent->mnt, mnt->mnt_mountpoint));
+	list_add_tail(&mnt->mnt_child, &parent->mnt_mounts);
+}
+
 /*
  * vfsmount lock must be held for write
  */
@@ -863,28 +876,45 @@ static void attach_mnt(struct mount *mnt
 			struct mountpoint *mp)
 {
 	mnt_set_mountpoint(parent, mp, mnt);
-	hlist_add_head_rcu(&mnt->mnt_hash, m_hash(&parent->mnt, mp->m_dentry));
-	list_add_tail(&mnt->mnt_child, &parent->mnt_mounts);
+	__attach_mnt(mnt, parent);
 }
 
-static void attach_shadowed(struct mount *mnt,
-			struct mount *parent,
-			struct mount *shadows)
+void mnt_change_mountpoint(struct mount *parent, struct mountpoint *mp, struct mount *mnt)
 {
-	if (shadows) {
-		hlist_add_behind_rcu(&mnt->mnt_hash, &shadows->mnt_hash);
-		list_add(&mnt->mnt_child, &shadows->mnt_child);
-	} else {
-		hlist_add_head_rcu(&mnt->mnt_hash,
-				m_hash(&parent->mnt, mnt->mnt_mountpoint));
-		list_add_tail(&mnt->mnt_child, &parent->mnt_mounts);
-	}
+	struct mountpoint *old_mp = mnt->mnt_mp;
+	struct dentry *old_mountpoint = mnt->mnt_mountpoint;
+	struct mount *old_parent = mnt->mnt_parent;
+
+	list_del_init(&mnt->mnt_child);
+	hlist_del_init(&mnt->mnt_mp_list);
+	hlist_del_init_rcu(&mnt->mnt_hash);
+
+	attach_mnt(mnt, parent, mp);
+
+	put_mountpoint(old_mp);
+
+	/*
+	 * Safely avoid even the suggestion this code might sleep or
+	 * lock the mount hash by taking advantage of the knowledge that
+	 * mnt_change_mountpoint will not release the final reference
+	 * to a mountpoint.
+	 *
+	 * During mounting, the mount passed in as the parent mount will
+	 * continue to use the old mountpoint and during unmounting, the
+	 * old mountpoint will continue to exist until namespace_unlock,
+	 * which happens well after mnt_change_mountpoint.
+	 */
+	spin_lock(&old_mountpoint->d_lock);
+	old_mountpoint->d_lockref.count--;
+	spin_unlock(&old_mountpoint->d_lock);
+
+	mnt_add_count(old_parent, -1);
 }
 
 /*
  * vfsmount lock must be held for write
  */
-static void commit_tree(struct mount *mnt, struct mount *shadows)
+static void commit_tree(struct mount *mnt)
 {
 	struct mount *parent = mnt->mnt_parent;
 	struct mount *m;
@@ -899,7 +929,10 @@ static void commit_tree(struct mount *mn
 
 	list_splice(&head, n->list.prev);
 
-	attach_shadowed(mnt, parent, shadows);
+	n->mounts += n->pending_mounts;
+	n->pending_mounts = 0;
+
+	__attach_mnt(mnt, parent);
 	touch_mnt_namespace(n);
 }
 
@@ -1419,11 +1452,16 @@ static void umount_tree(struct mount *mn
 		propagate_umount(&tmp_list);
 
 	while (!list_empty(&tmp_list)) {
+		struct mnt_namespace *ns;
 		bool disconnect;
 		p = list_first_entry(&tmp_list, struct mount, mnt_list);
 		list_del_init(&p->mnt_expire);
 		list_del_init(&p->mnt_list);
-		__touch_mnt_namespace(p->mnt_ns);
+		ns = p->mnt_ns;
+		if (ns) {
+			ns->mounts--;
+			__touch_mnt_namespace(ns);
+		}
 		p->mnt_ns = NULL;
 		if (how & UMOUNT_SYNC)
 			p->mnt.mnt_flags |= MNT_SYNC_UMOUNT;
@@ -1557,11 +1595,12 @@ void __detach_mounts(struct dentry *dent
 	struct mount *mnt;
 
 	namespace_lock();
+	lock_mount_hash();
 	mp = lookup_mountpoint(dentry);
 	if (IS_ERR_OR_NULL(mp))
 		goto out_unlock;
 
-	lock_mount_hash();
+	event++;
 	while (!hlist_empty(&mp->m_list)) {
 		mnt = hlist_entry(mp->m_list.first, struct mount, mnt_mp_list);
 		if (mnt->mnt.mnt_flags & MNT_UMOUNT) {
@@ -1570,9 +1609,9 @@ void __detach_mounts(struct dentry *dent
 		}
 		else umount_tree(mnt, UMOUNT_CONNECTED);
 	}
-	unlock_mount_hash();
 	put_mountpoint(mp);
 out_unlock:
+	unlock_mount_hash();
 	namespace_unlock();
 }
 
@@ -1693,7 +1732,6 @@ struct mount *copy_tree(struct mount *mn
 			continue;
 
 		for (s = r; s; s = next_mnt(s, r)) {
-			struct mount *t = NULL;
 			if (!(flag & CL_COPY_UNBINDABLE) &&
 			    IS_MNT_UNBINDABLE(s)) {
 				s = skip_mnt_tree(s);
@@ -1715,14 +1753,7 @@ struct mount *copy_tree(struct mount *mn
 				goto out;
 			lock_mount_hash();
 			list_add_tail(&q->mnt_list, &res->mnt_list);
-			mnt_set_mountpoint(parent, p->mnt_mp, q);
-			if (!list_empty(&parent->mnt_mounts)) {
-				t = list_last_entry(&parent->mnt_mounts,
-					struct mount, mnt_child);
-				if (t->mnt_mp != p->mnt_mp)
-					t = NULL;
-			}
-			attach_shadowed(q, parent, t);
+			attach_mnt(q, parent, p->mnt_mp);
 			unlock_mount_hash();
 		}
 	}
@@ -1831,6 +1862,28 @@ static int invent_group_ids(struct mount
 	return 0;
 }
 
+int count_mounts(struct mnt_namespace *ns, struct mount *mnt)
+{
+	unsigned int max = READ_ONCE(sysctl_mount_max);
+	unsigned int mounts = 0, old, pending, sum;
+	struct mount *p;
+
+	for (p = mnt; p; p = next_mnt(p, mnt))
+		mounts++;
+
+	old = ns->mounts;
+	pending = ns->pending_mounts;
+	sum = old + pending;
+	if ((old > sum) ||
+	    (pending > sum) ||
+	    (max < sum) ||
+	    (mounts > (max - sum)))
+		return -ENOSPC;
+
+	ns->pending_mounts = pending + mounts;
+	return 0;
+}
+
 /*
  *  @source_mnt : mount tree to be attached
  *  @nd         : place the mount tree @source_mnt is attached
@@ -1900,10 +1953,26 @@ static int attach_recursive_mnt(struct m
 			struct path *parent_path)
 {
 	HLIST_HEAD(tree_list);
+	struct mnt_namespace *ns = dest_mnt->mnt_ns;
+	struct mountpoint *smp;
 	struct mount *child, *p;
 	struct hlist_node *n;
 	int err;
 
+	/* Preallocate a mountpoint in case the new mounts need
+	 * to be tucked under other mounts.
+	 */
+	smp = get_mountpoint(source_mnt->mnt.mnt_root);
+	if (IS_ERR(smp))
+		return PTR_ERR(smp);
+
+	/* Is there space to add these mounts to the mount namespace? */
+	if (!parent_path) {
+		err = count_mounts(ns, source_mnt);
+		if (err)
+			goto out;
+	}
+
 	if (IS_MNT_SHARED(dest_mnt)) {
 		err = invent_group_ids(source_mnt, true);
 		if (err)
@@ -1923,16 +1992,19 @@ static int attach_recursive_mnt(struct m
 		touch_mnt_namespace(source_mnt->mnt_ns);
 	} else {
 		mnt_set_mountpoint(dest_mnt, dest_mp, source_mnt);
-		commit_tree(source_mnt, NULL);
+		commit_tree(source_mnt);
 	}
 
 	hlist_for_each_entry_safe(child, n, &tree_list, mnt_hash) {
 		struct mount *q;
 		hlist_del_init(&child->mnt_hash);
-		q = __lookup_mnt_last(&child->mnt_parent->mnt,
-				      child->mnt_mountpoint);
-		commit_tree(child, q);
+		q = __lookup_mnt(&child->mnt_parent->mnt,
+				 child->mnt_mountpoint);
+		if (q)
+			mnt_change_mountpoint(child, smp, q);
+		commit_tree(child);
 	}
+	put_mountpoint(smp);
 	unlock_mount_hash();
 
 	return 0;
@@ -1940,11 +2012,18 @@ static int attach_recursive_mnt(struct m
  out_cleanup_ids:
 	while (!hlist_empty(&tree_list)) {
 		child = hlist_entry(tree_list.first, struct mount, mnt_hash);
+		child->mnt_parent->mnt_ns->pending_mounts = 0;
 		umount_tree(child, UMOUNT_SYNC);
 	}
 	unlock_mount_hash();
 	cleanup_group_ids(source_mnt, NULL);
  out:
+	ns->pending_mounts = 0;
+
+	read_seqlock_excl(&mount_lock);
+	put_mountpoint(smp);
+	read_sequnlock_excl(&mount_lock);
+
 	return err;
 }
 
@@ -1961,9 +2040,7 @@ retry:
 	namespace_lock();
 	mnt = lookup_mnt(path);
 	if (likely(!mnt)) {
-		struct mountpoint *mp = lookup_mountpoint(dentry);
-		if (!mp)
-			mp = new_mountpoint(dentry);
+		struct mountpoint *mp = get_mountpoint(dentry);
 		if (IS_ERR(mp)) {
 			namespace_unlock();
 			mutex_unlock(&dentry->d_inode->i_mutex);
@@ -1982,7 +2059,11 @@ retry:
 static void unlock_mount(struct mountpoint *where)
 {
 	struct dentry *dentry = where->m_dentry;
+
+	read_seqlock_excl(&mount_lock);
 	put_mountpoint(where);
+	read_sequnlock_excl(&mount_lock);
+
 	namespace_unlock();
 	mutex_unlock(&dentry->d_inode->i_mutex);
 }
@@ -2401,8 +2482,10 @@ static int do_new_mount(struct path *pat
 			mnt_flags |= MNT_NODEV | MNT_LOCK_NODEV;
 		}
 		if (type->fs_flags & FS_USERNS_VISIBLE) {
-			if (!fs_fully_visible(type, &mnt_flags))
+			if (!fs_fully_visible(type, &mnt_flags)) {
+				put_filesystem(type);
 				return -EPERM;
+			}
 		}
 	}
 
@@ -2766,6 +2849,8 @@ static struct mnt_namespace *alloc_mnt_n
 	init_waitqueue_head(&new_ns->poll);
 	new_ns->event = 0;
 	new_ns->user_ns = get_user_ns(user_ns);
+	new_ns->mounts = 0;
+	new_ns->pending_mounts = 0;
 	return new_ns;
 }
 
@@ -2815,6 +2900,7 @@ struct mnt_namespace *copy_mnt_ns(unsign
 	q = new;
 	while (p) {
 		q->mnt_ns = new_ns;
+		new_ns->mounts++;
 		if (new_fs) {
 			if (&p->mnt == new_fs->root.mnt) {
 				new_fs->root.mnt = mntget(&q->mnt);
@@ -2853,6 +2939,7 @@ static struct mnt_namespace *create_mnt_
 		struct mount *mnt = real_mount(m);
 		mnt->mnt_ns = new_ns;
 		new_ns->root = mnt;
+		new_ns->mounts++;
 		list_add(&mnt->mnt_list, &new_ns->list);
 	} else {
 		mntput(m);
@@ -3052,9 +3139,9 @@ SYSCALL_DEFINE2(pivot_root, const char _
 	touch_mnt_namespace(current->nsproxy->mnt_ns);
 	/* A moved mount should not expire automatically */
 	list_del_init(&new_mnt->mnt_expire);
+	put_mountpoint(root_mp);
 	unlock_mount_hash();
 	chroot_fs_refs(&root, &new);
-	put_mountpoint(root_mp);
 	error = 0;
 out4:
 	unlock_mount(old_mp);
@@ -3236,6 +3323,10 @@ static bool fs_fully_visible(struct file
 		if (mnt->mnt.mnt_sb->s_iflags & SB_I_NOEXEC)
 			mnt_flags &= ~(MNT_LOCK_NOSUID | MNT_LOCK_NOEXEC);
 
+		/* Don't miss readonly hidden in the superblock flags */
+		if (mnt->mnt.mnt_sb->s_flags & MS_RDONLY)
+			mnt_flags |= MNT_LOCK_READONLY;
+
 		/* Verify the mount flags are equal to or more permissive
 		 * than the proposed new mount.
 		 */
@@ -3262,7 +3353,7 @@ static bool fs_fully_visible(struct file
 		list_for_each_entry(child, &mnt->mnt_mounts, mnt_child) {
 			struct inode *inode = child->mnt_mountpoint->d_inode;
 			/* Only worry about locked mounts */
-			if (!(mnt_flags & MNT_LOCKED))
+			if (!(child->mnt.mnt_flags & MNT_LOCKED))
 				continue;
 			/* Is the directory permanetly empty? */
 			if (!is_empty_dir_inode(inode))
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ncpfs/dir.c linux-libre-4.4.107-gnu/fs/ncpfs/dir.c
--- linux-libre-4.4-gnu/fs/ncpfs/dir.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/ncpfs/dir.c	2017-12-20 04:05:01.000000000 -0500
@@ -633,7 +633,7 @@ ncp_fill_cache(struct file *file, struct
 				d_rehash(newdent);
 		} else {
 			spin_lock(&dentry->d_lock);
-			NCP_FINFO(inode)->flags &= ~NCPI_DIR_CACHE;
+			NCP_FINFO(dir)->flags &= ~NCPI_DIR_CACHE;
 			spin_unlock(&dentry->d_lock);
 		}
 	} else {
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/nfs/callback.c linux-libre-4.4.107-gnu/fs/nfs/callback.c
--- linux-libre-4.4-gnu/fs/nfs/callback.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/nfs/callback.c	2017-12-20 04:05:01.000000000 -0500
@@ -261,7 +261,7 @@ static int nfs_callback_up_net(int minor
 	}
 
 	ret = -EPROTONOSUPPORT;
-	if (minorversion == 0)
+	if (!IS_ENABLED(CONFIG_NFS_V4_1) || minorversion == 0)
 		ret = nfs4_callback_up_net(serv, net);
 	else if (xprt->ops->bc_up)
 		ret = xprt->ops->bc_up(serv, net);
@@ -275,6 +275,7 @@ static int nfs_callback_up_net(int minor
 err_socks:
 	svc_rpcb_cleanup(serv, net);
 err_bind:
+	nn->cb_users[minorversion]--;
 	dprintk("NFS: Couldn't create callback socket: err = %d; "
 			"net = %p\n", ret, net);
 	return ret;
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/nfs/callback_xdr.c linux-libre-4.4.107-gnu/fs/nfs/callback_xdr.c
--- linux-libre-4.4-gnu/fs/nfs/callback_xdr.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/nfs/callback_xdr.c	2017-12-20 04:05:01.000000000 -0500
@@ -912,7 +912,7 @@ static __be32 nfs4_callback_compound(str
 	if (hdr_arg.minorversion == 0) {
 		cps.clp = nfs4_find_client_ident(SVC_NET(rqstp), hdr_arg.cb_ident);
 		if (!cps.clp || !check_gss_callback_principal(cps.clp, rqstp))
-			return rpc_drop_reply;
+			goto out_invalidcred;
 	}
 
 	cps.minorversion = hdr_arg.minorversion;
@@ -940,6 +940,10 @@ static __be32 nfs4_callback_compound(str
 	nfs_put_client(cps.clp);
 	dprintk("%s: done, status = %u\n", __func__, ntohl(status));
 	return rpc_success;
+
+out_invalidcred:
+	pr_warn_ratelimited("NFS: NFSv4 callback contains invalid cred\n");
+	return rpc_autherr_badcred;
 }
 
 /*
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/nfs/delegation.c linux-libre-4.4.107-gnu/fs/nfs/delegation.c
--- linux-libre-4.4-gnu/fs/nfs/delegation.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/nfs/delegation.c	2017-12-20 04:05:01.000000000 -0500
@@ -41,6 +41,17 @@ void nfs_mark_delegation_referenced(stru
 	set_bit(NFS_DELEGATION_REFERENCED, &delegation->flags);
 }
 
+static bool
+nfs4_is_valid_delegation(const struct nfs_delegation *delegation,
+		fmode_t flags)
+{
+	if (delegation != NULL && (delegation->type & flags) == flags &&
+	    !test_bit(NFS_DELEGATION_REVOKED, &delegation->flags) &&
+	    !test_bit(NFS_DELEGATION_RETURNING, &delegation->flags))
+		return true;
+	return false;
+}
+
 static int
 nfs4_do_check_delegation(struct inode *inode, fmode_t flags, bool mark)
 {
@@ -50,8 +61,7 @@ nfs4_do_check_delegation(struct inode *i
 	flags &= FMODE_READ|FMODE_WRITE;
 	rcu_read_lock();
 	delegation = rcu_dereference(NFS_I(inode)->delegation);
-	if (delegation != NULL && (delegation->type & flags) == flags &&
-	    !test_bit(NFS_DELEGATION_RETURNING, &delegation->flags)) {
+	if (nfs4_is_valid_delegation(delegation, flags)) {
 		if (mark)
 			nfs_mark_delegation_referenced(delegation);
 		ret = 1;
@@ -892,7 +902,7 @@ bool nfs4_copy_delegation_stateid(nfs4_s
 	flags &= FMODE_READ|FMODE_WRITE;
 	rcu_read_lock();
 	delegation = rcu_dereference(nfsi->delegation);
-	ret = (delegation != NULL && (delegation->type & flags) == flags);
+	ret = nfs4_is_valid_delegation(delegation, flags);
 	if (ret) {
 		nfs4_stateid_copy(dst, &delegation->stateid);
 		nfs_mark_delegation_referenced(delegation);
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/nfs/dir.c linux-libre-4.4.107-gnu/fs/nfs/dir.c
--- linux-libre-4.4-gnu/fs/nfs/dir.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/nfs/dir.c	2017-12-20 04:05:01.000000000 -0500
@@ -377,7 +377,7 @@ int nfs_readdir_xdr_filler(struct page *
  again:
 	timestamp = jiffies;
 	gencount = nfs_inc_attr_generation_counter();
-	error = NFS_PROTO(inode)->readdir(file->f_path.dentry, cred, entry->cookie, pages,
+	error = NFS_PROTO(inode)->readdir(file_dentry(file), cred, entry->cookie, pages,
 					  NFS_SERVER(inode)->dtsize, desc->plus);
 	if (error < 0) {
 		/* We requested READDIRPLUS, but the server doesn't grok it */
@@ -462,7 +462,7 @@ void nfs_force_use_readdirplus(struct in
 {
 	if (!list_empty(&NFS_I(dir)->open_files)) {
 		nfs_advise_use_readdirplus(dir);
-		nfs_zap_mapping(dir, dir->i_mapping);
+		invalidate_mapping_pages(dir->i_mapping, 0, -1);
 	}
 }
 
@@ -560,7 +560,7 @@ int nfs_readdir_page_filler(nfs_readdir_
 		count++;
 
 		if (desc->plus != 0)
-			nfs_prime_dcache(desc->file->f_path.dentry, entry);
+			nfs_prime_dcache(file_dentry(desc->file), entry);
 
 		status = nfs_readdir_add_to_array(entry, page);
 		if (status != 0)
@@ -847,24 +847,13 @@ int uncached_readdir(nfs_readdir_descrip
 	goto out;
 }
 
-static bool nfs_dir_mapping_need_revalidate(struct inode *dir)
-{
-	struct nfs_inode *nfsi = NFS_I(dir);
-
-	if (nfs_attribute_cache_expired(dir))
-		return true;
-	if (nfsi->cache_validity & NFS_INO_INVALID_DATA)
-		return true;
-	return false;
-}
-
 /* The file offset position represents the dirent entry number.  A
    last cookie cache takes care of the common case of reading the
    whole directory.
  */
 static int nfs_readdir(struct file *file, struct dir_context *ctx)
 {
-	struct dentry	*dentry = file->f_path.dentry;
+	struct dentry	*dentry = file_dentry(file);
 	struct inode	*inode = d_inode(dentry);
 	nfs_readdir_descriptor_t my_desc,
 			*desc = &my_desc;
@@ -890,7 +879,7 @@ static int nfs_readdir(struct file *file
 	desc->plus = nfs_use_readdirplus(inode, ctx) ? 1 : 0;
 
 	nfs_block_sillyrename(dentry);
-	if (ctx->pos == 0 || nfs_dir_mapping_need_revalidate(inode))
+	if (ctx->pos == 0 || nfs_attribute_cache_expired(inode))
 		res = nfs_revalidate_mapping(inode, file->f_mapping);
 	if (res < 0)
 		goto out;
@@ -1146,11 +1135,13 @@ static int nfs_lookup_revalidate(struct
 	/* Force a full look up iff the parent directory has changed */
 	if (!nfs_is_exclusive_create(dir, flags) &&
 	    nfs_check_verifier(dir, dentry, flags & LOOKUP_RCU)) {
-
-		if (nfs_lookup_verify_inode(inode, flags)) {
+		error = nfs_lookup_verify_inode(inode, flags);
+		if (error) {
 			if (flags & LOOKUP_RCU)
 				return -ECHILD;
-			goto out_zap_parent;
+			if (error == -ESTALE)
+				goto out_zap_parent;
+			goto out_error;
 		}
 		goto out_valid;
 	}
@@ -1174,8 +1165,10 @@ static int nfs_lookup_revalidate(struct
 	trace_nfs_lookup_revalidate_enter(dir, dentry, flags);
 	error = NFS_PROTO(dir)->lookup(dir, &dentry->d_name, fhandle, fattr, label);
 	trace_nfs_lookup_revalidate_exit(dir, dentry, flags, error);
-	if (error)
+	if (error == -ESTALE || error == -ENOENT)
 		goto out_bad;
+	if (error)
+		goto out_error;
 	if (nfs_compare_fh(NFS_FH(inode), fhandle))
 		goto out_bad;
 	if ((error = nfs_refresh_inode(inode, fattr)) != 0)
@@ -1267,7 +1260,7 @@ static int nfs_weak_revalidate(struct de
 		return 0;
 	}
 
-	error = nfs_revalidate_inode(NFS_SERVER(inode), inode);
+	error = nfs_lookup_verify_inode(inode, flags);
 	dfprintk(LOOKUPCACHE, "NFS: %s: inode %lu is %s\n",
 			__func__, inode->i_ino, error ? "invalid" : "valid");
 	return !error;
@@ -1427,6 +1420,7 @@ static int nfs4_lookup_revalidate(struct
 
 const struct dentry_operations nfs4_dentry_operations = {
 	.d_revalidate	= nfs4_lookup_revalidate,
+	.d_weak_revalidate	= nfs_weak_revalidate,
 	.d_delete	= nfs_dentry_delete,
 	.d_iput		= nfs_dentry_iput,
 	.d_automount	= nfs_d_automount,
@@ -1531,9 +1525,9 @@ int nfs_atomic_open(struct inode *dir, s
 		err = PTR_ERR(inode);
 		trace_nfs_atomic_open_exit(dir, ctx, open_flags, err);
 		put_nfs_open_context(ctx);
+		d_drop(dentry);
 		switch (err) {
 		case -ENOENT:
-			d_drop(dentry);
 			d_add(dentry, NULL);
 			nfs_set_verifier(dentry, nfs_save_change_attribute(dir));
 			break;
@@ -2057,7 +2051,7 @@ out:
 		if (new_inode != NULL)
 			nfs_drop_nlink(new_inode);
 		d_move(old_dentry, new_dentry);
-		nfs_set_verifier(new_dentry,
+		nfs_set_verifier(old_dentry,
 					nfs_save_change_attribute(new_dir));
 	} else if (error == -ENOENT)
 		nfs_dentry_handle_enoent(old_dentry);
@@ -2432,6 +2426,20 @@ int nfs_may_open(struct inode *inode, st
 }
 EXPORT_SYMBOL_GPL(nfs_may_open);
 
+static int nfs_execute_ok(struct inode *inode, int mask)
+{
+	struct nfs_server *server = NFS_SERVER(inode);
+	int ret;
+
+	if (mask & MAY_NOT_BLOCK)
+		ret = nfs_revalidate_inode_rcu(server, inode);
+	else
+		ret = nfs_revalidate_inode(server, inode);
+	if (ret == 0 && !execute_ok(inode))
+		ret = -EACCES;
+	return ret;
+}
+
 int nfs_permission(struct inode *inode, int mask)
 {
 	struct rpc_cred *cred;
@@ -2449,6 +2457,9 @@ int nfs_permission(struct inode *inode,
 		case S_IFLNK:
 			goto out;
 		case S_IFREG:
+			if ((mask & MAY_OPEN) &&
+			   nfs_server_capable(inode, NFS_CAP_ATOMIC_OPEN))
+				return 0;
 			break;
 		case S_IFDIR:
 			/*
@@ -2481,8 +2492,8 @@ force_lookup:
 			res = PTR_ERR(cred);
 	}
 out:
-	if (!res && (mask & MAY_EXEC) && !execute_ok(inode))
-		res = -EACCES;
+	if (!res && (mask & MAY_EXEC))
+		res = nfs_execute_ok(inode, mask);
 
 	dfprintk(VFS, "NFS: permission(%s/%lu), mask=0x%x, res=%d\n",
 		inode->i_sb->s_id, inode->i_ino, mask, res);
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/nfs/file.c linux-libre-4.4.107-gnu/fs/nfs/file.c
--- linux-libre-4.4-gnu/fs/nfs/file.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/nfs/file.c	2017-12-20 04:05:01.000000000 -0500
@@ -407,7 +407,7 @@ static int nfs_write_end(struct file *fi
 	 */
 	if (!PageUptodate(page)) {
 		unsigned pglen = nfs_page_length(page);
-		unsigned end = offset + len;
+		unsigned end = offset + copied;
 
 		if (pglen == 0) {
 			zero_user_segments(page, 0, offset,
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/nfs/filelayout/filelayout.c linux-libre-4.4.107-gnu/fs/nfs/filelayout/filelayout.c
--- linux-libre-4.4-gnu/fs/nfs/filelayout/filelayout.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/nfs/filelayout/filelayout.c	2017-12-20 04:05:01.000000000 -0500
@@ -374,8 +374,7 @@ static int filelayout_commit_done_cb(str
 		return -EAGAIN;
 	}
 
-	if (data->verf.committed == NFS_UNSTABLE)
-		pnfs_set_layoutcommit(data->inode, data->lseg, data->lwb);
+	pnfs_set_layoutcommit(data->inode, data->lseg, data->lwb);
 
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/nfs/filelayout/filelayoutdev.c linux-libre-4.4.107-gnu/fs/nfs/filelayout/filelayoutdev.c
--- linux-libre-4.4-gnu/fs/nfs/filelayout/filelayoutdev.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/nfs/filelayout/filelayoutdev.c	2017-12-20 04:05:01.000000000 -0500
@@ -283,7 +283,8 @@ nfs4_fl_prepare_ds(struct pnfs_layout_se
 			     s->nfs_client->cl_rpcclient->cl_auth->au_flavor);
 
 out_test_devid:
-	if (filelayout_test_devid_unavailable(devid))
+	if (ret->ds_clp == NULL ||
+	    filelayout_test_devid_unavailable(devid))
 		ret = NULL;
 out:
 	return ret;
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/nfs/flexfilelayout/flexfilelayout.c linux-libre-4.4.107-gnu/fs/nfs/flexfilelayout/flexfilelayout.c
--- linux-libre-4.4-gnu/fs/nfs/flexfilelayout/flexfilelayout.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/nfs/flexfilelayout/flexfilelayout.c	2017-12-20 04:05:01.000000000 -0500
@@ -145,7 +145,7 @@ static bool ff_mirror_match_fh(const str
 		return false;
 	for (i = 0; i < m1->fh_versions_cnt; i++) {
 		bool found_fh = false;
-		for (j = 0; j < m2->fh_versions_cnt; i++) {
+		for (j = 0; j < m2->fh_versions_cnt; j++) {
 			if (nfs_compare_fh(&m1->fh_versions[i],
 					&m2->fh_versions[j]) == 0) {
 				found_fh = true;
@@ -1414,8 +1414,7 @@ static int ff_layout_commit_done_cb(stru
 		return -EAGAIN;
 	}
 
-	if (data->verf.committed == NFS_UNSTABLE
-	    && ff_layout_need_layoutcommit(data->lseg))
+	if (ff_layout_need_layoutcommit(data->lseg))
 		pnfs_set_layoutcommit(data->inode, data->lseg, data->lwb);
 
 	return 0;
@@ -1859,11 +1858,9 @@ ff_layout_encode_layoutreturn(struct pnf
 	start = xdr_reserve_space(xdr, 4);
 	BUG_ON(!start);
 
-	if (ff_layout_encode_ioerr(flo, xdr, args))
-		goto out;
-
+	ff_layout_encode_ioerr(flo, xdr, args);
 	ff_layout_encode_iostats(flo, xdr, args);
-out:
+
 	*start = cpu_to_be32((xdr->p - start - 1) * 4);
 	dprintk("%s: Return\n", __func__);
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/nfs/flexfilelayout/flexfilelayoutdev.c linux-libre-4.4.107-gnu/fs/nfs/flexfilelayout/flexfilelayoutdev.c
--- linux-libre-4.4-gnu/fs/nfs/flexfilelayout/flexfilelayoutdev.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/nfs/flexfilelayout/flexfilelayoutdev.c	2017-12-20 04:05:01.000000000 -0500
@@ -30,6 +30,7 @@ void nfs4_ff_layout_free_deviceid(struct
 {
 	nfs4_print_deviceid(&mirror_ds->id_node.deviceid);
 	nfs4_pnfs_ds_put(mirror_ds->ds);
+	kfree(mirror_ds->ds_versions);
 	kfree_rcu(mirror_ds, id_node.rcu);
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/nfs/inode.c linux-libre-4.4.107-gnu/fs/nfs/inode.c
--- linux-libre-4.4-gnu/fs/nfs/inode.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/nfs/inode.c	2017-12-20 04:05:01.000000000 -0500
@@ -927,7 +927,7 @@ int nfs_open(struct inode *inode, struct
 {
 	struct nfs_open_context *ctx;
 
-	ctx = alloc_nfs_open_context(filp->f_path.dentry, filp->f_mode);
+	ctx = alloc_nfs_open_context(file_dentry(filp), filp->f_mode);
 	if (IS_ERR(ctx))
 		return PTR_ERR(ctx);
 	nfs_file_set_open_context(filp, ctx);
@@ -1241,9 +1241,9 @@ static int nfs_check_inode_attributes(st
 		return 0;
 	/* Has the inode gone and changed behind our back? */
 	if ((fattr->valid & NFS_ATTR_FATTR_FILEID) && nfsi->fileid != fattr->fileid)
-		return -EIO;
+		return -ESTALE;
 	if ((fattr->valid & NFS_ATTR_FATTR_TYPE) && (inode->i_mode & S_IFMT) != (fattr->mode & S_IFMT))
-		return -EIO;
+		return -ESTALE;
 
 	if ((fattr->valid & NFS_ATTR_FATTR_CHANGE) != 0 &&
 			inode->i_version != fattr->change_attr)
@@ -1641,6 +1641,7 @@ static int nfs_update_inode(struct inode
 	unsigned long invalid = 0;
 	unsigned long now = jiffies;
 	unsigned long save_cache_validity;
+	bool cache_revalidated = true;
 
 	dfprintk(VFS, "NFS: %s(%s/%lu fh_crc=0x%08x ct=%d info=0x%x)\n",
 			__func__, inode->i_sb->s_id, inode->i_ino,
@@ -1702,22 +1703,28 @@ static int nfs_update_inode(struct inode
 				nfs_force_lookup_revalidate(inode);
 			inode->i_version = fattr->change_attr;
 		}
-	} else
+	} else {
 		nfsi->cache_validity |= save_cache_validity;
+		cache_revalidated = false;
+	}
 
 	if (fattr->valid & NFS_ATTR_FATTR_MTIME) {
 		memcpy(&inode->i_mtime, &fattr->mtime, sizeof(inode->i_mtime));
-	} else if (server->caps & NFS_CAP_MTIME)
+	} else if (server->caps & NFS_CAP_MTIME) {
 		nfsi->cache_validity |= save_cache_validity &
 				(NFS_INO_INVALID_ATTR
 				| NFS_INO_REVAL_FORCED);
+		cache_revalidated = false;
+	}
 
 	if (fattr->valid & NFS_ATTR_FATTR_CTIME) {
 		memcpy(&inode->i_ctime, &fattr->ctime, sizeof(inode->i_ctime));
-	} else if (server->caps & NFS_CAP_CTIME)
+	} else if (server->caps & NFS_CAP_CTIME) {
 		nfsi->cache_validity |= save_cache_validity &
 				(NFS_INO_INVALID_ATTR
 				| NFS_INO_REVAL_FORCED);
+		cache_revalidated = false;
+	}
 
 	/* Check if our cached file size is stale */
 	if (fattr->valid & NFS_ATTR_FATTR_SIZE) {
@@ -1737,19 +1744,23 @@ static int nfs_update_inode(struct inode
 					(long long)cur_isize,
 					(long long)new_isize);
 		}
-	} else
+	} else {
 		nfsi->cache_validity |= save_cache_validity &
 				(NFS_INO_INVALID_ATTR
 				| NFS_INO_REVAL_PAGECACHE
 				| NFS_INO_REVAL_FORCED);
+		cache_revalidated = false;
+	}
 
 
 	if (fattr->valid & NFS_ATTR_FATTR_ATIME)
 		memcpy(&inode->i_atime, &fattr->atime, sizeof(inode->i_atime));
-	else if (server->caps & NFS_CAP_ATIME)
+	else if (server->caps & NFS_CAP_ATIME) {
 		nfsi->cache_validity |= save_cache_validity &
 				(NFS_INO_INVALID_ATIME
 				| NFS_INO_REVAL_FORCED);
+		cache_revalidated = false;
+	}
 
 	if (fattr->valid & NFS_ATTR_FATTR_MODE) {
 		if ((inode->i_mode & S_IALLUGO) != (fattr->mode & S_IALLUGO)) {
@@ -1758,36 +1769,42 @@ static int nfs_update_inode(struct inode
 			inode->i_mode = newmode;
 			invalid |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL;
 		}
-	} else if (server->caps & NFS_CAP_MODE)
+	} else if (server->caps & NFS_CAP_MODE) {
 		nfsi->cache_validity |= save_cache_validity &
 				(NFS_INO_INVALID_ATTR
 				| NFS_INO_INVALID_ACCESS
 				| NFS_INO_INVALID_ACL
 				| NFS_INO_REVAL_FORCED);
+		cache_revalidated = false;
+	}
 
 	if (fattr->valid & NFS_ATTR_FATTR_OWNER) {
 		if (!uid_eq(inode->i_uid, fattr->uid)) {
 			invalid |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL;
 			inode->i_uid = fattr->uid;
 		}
-	} else if (server->caps & NFS_CAP_OWNER)
+	} else if (server->caps & NFS_CAP_OWNER) {
 		nfsi->cache_validity |= save_cache_validity &
 				(NFS_INO_INVALID_ATTR
 				| NFS_INO_INVALID_ACCESS
 				| NFS_INO_INVALID_ACL
 				| NFS_INO_REVAL_FORCED);
+		cache_revalidated = false;
+	}
 
 	if (fattr->valid & NFS_ATTR_FATTR_GROUP) {
 		if (!gid_eq(inode->i_gid, fattr->gid)) {
 			invalid |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL;
 			inode->i_gid = fattr->gid;
 		}
-	} else if (server->caps & NFS_CAP_OWNER_GROUP)
+	} else if (server->caps & NFS_CAP_OWNER_GROUP) {
 		nfsi->cache_validity |= save_cache_validity &
 				(NFS_INO_INVALID_ATTR
 				| NFS_INO_INVALID_ACCESS
 				| NFS_INO_INVALID_ACL
 				| NFS_INO_REVAL_FORCED);
+		cache_revalidated = false;
+	}
 
 	if (fattr->valid & NFS_ATTR_FATTR_NLINK) {
 		if (inode->i_nlink != fattr->nlink) {
@@ -1796,19 +1813,22 @@ static int nfs_update_inode(struct inode
 				invalid |= NFS_INO_INVALID_DATA;
 			set_nlink(inode, fattr->nlink);
 		}
-	} else if (server->caps & NFS_CAP_NLINK)
+	} else if (server->caps & NFS_CAP_NLINK) {
 		nfsi->cache_validity |= save_cache_validity &
 				(NFS_INO_INVALID_ATTR
 				| NFS_INO_REVAL_FORCED);
+		cache_revalidated = false;
+	}
 
 	if (fattr->valid & NFS_ATTR_FATTR_SPACE_USED) {
 		/*
 		 * report the blocks in 512byte units
 		 */
 		inode->i_blocks = nfs_calc_block_size(fattr->du.nfs3.used);
- 	}
-	if (fattr->valid & NFS_ATTR_FATTR_BLOCKS_USED)
+	} else if (fattr->valid & NFS_ATTR_FATTR_BLOCKS_USED)
 		inode->i_blocks = fattr->du.nfs2.blocks;
+	else
+		cache_revalidated = false;
 
 	/* Update attrtimeo value if we're out of the unstable period */
 	if (invalid & NFS_INO_INVALID_ATTR) {
@@ -1818,9 +1838,13 @@ static int nfs_update_inode(struct inode
 		/* Set barrier to be more recent than all outstanding updates */
 		nfsi->attr_gencount = nfs_inc_attr_generation_counter();
 	} else {
-		if (!time_in_range_open(now, nfsi->attrtimeo_timestamp, nfsi->attrtimeo_timestamp + nfsi->attrtimeo)) {
-			if ((nfsi->attrtimeo <<= 1) > NFS_MAXATTRTIMEO(inode))
-				nfsi->attrtimeo = NFS_MAXATTRTIMEO(inode);
+		if (cache_revalidated) {
+			if (!time_in_range_open(now, nfsi->attrtimeo_timestamp,
+				nfsi->attrtimeo_timestamp + nfsi->attrtimeo)) {
+				nfsi->attrtimeo <<= 1;
+				if (nfsi->attrtimeo > NFS_MAXATTRTIMEO(inode))
+					nfsi->attrtimeo = NFS_MAXATTRTIMEO(inode);
+			}
 			nfsi->attrtimeo_timestamp = now;
 		}
 		/* Set the barrier to be more recent than this fattr */
@@ -1829,7 +1853,7 @@ static int nfs_update_inode(struct inode
 	}
 
 	/* Don't declare attrcache up to date if there were no attrs! */
-	if (fattr->valid != 0)
+	if (cache_revalidated)
 		invalid &= ~NFS_INO_INVALID_ATTR;
 
 	/* Don't invalidate the data if we were to blame */
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/nfs/internal.h linux-libre-4.4.107-gnu/fs/nfs/internal.h
--- linux-libre-4.4-gnu/fs/nfs/internal.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/nfs/internal.h	2017-12-20 04:05:01.000000000 -0500
@@ -243,7 +243,6 @@ int nfs_iocounter_wait(struct nfs_io_cou
 extern const struct nfs_pageio_ops nfs_pgio_rw_ops;
 struct nfs_pgio_header *nfs_pgio_header_alloc(const struct nfs_rw_ops *);
 void nfs_pgio_header_free(struct nfs_pgio_header *);
-void nfs_pgio_data_destroy(struct nfs_pgio_header *);
 int nfs_generic_pgio(struct nfs_pageio_descriptor *, struct nfs_pgio_header *);
 int nfs_initiate_pgio(struct rpc_clnt *clnt, struct nfs_pgio_header *hdr,
 		      struct rpc_cred *cred, const struct nfs_rpc_ops *rpc_ops,
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/nfs/Kconfig linux-libre-4.4.107-gnu/fs/nfs/Kconfig
--- linux-libre-4.4-gnu/fs/nfs/Kconfig	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/nfs/Kconfig	2017-12-20 04:05:01.000000000 -0500
@@ -121,6 +121,7 @@ config PNFS_FILE_LAYOUT
 config PNFS_BLOCK
 	tristate
 	depends on NFS_V4_1 && BLK_DEV_DM
+	depends on 64BIT || LBDAF
 	default NFS_V4
 
 config PNFS_OBJLAYOUT
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/nfs/nfs42proc.c linux-libre-4.4.107-gnu/fs/nfs/nfs42proc.c
--- linux-libre-4.4-gnu/fs/nfs/nfs42proc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/nfs/nfs42proc.c	2017-12-20 04:05:01.000000000 -0500
@@ -269,6 +269,7 @@ int nfs42_proc_layoutstats_generic(struc
 	task = rpc_run_task(&task_setup);
 	if (IS_ERR(task))
 		return PTR_ERR(task);
+	rpc_put_task(task);
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/nfs/nfs4client.c linux-libre-4.4.107-gnu/fs/nfs/nfs4client.c
--- linux-libre-4.4-gnu/fs/nfs/nfs4client.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/nfs/nfs4client.c	2017-12-20 04:05:01.000000000 -0500
@@ -895,9 +895,9 @@ static void nfs4_session_set_rwsize(stru
 	server_resp_sz = sess->fc_attrs.max_resp_sz - nfs41_maxread_overhead;
 	server_rqst_sz = sess->fc_attrs.max_rqst_sz - nfs41_maxwrite_overhead;
 
-	if (server->rsize > server_resp_sz)
+	if (!server->rsize || server->rsize > server_resp_sz)
 		server->rsize = server_resp_sz;
-	if (server->wsize > server_rqst_sz)
+	if (!server->wsize || server->wsize > server_rqst_sz)
 		server->wsize = server_rqst_sz;
 #endif /* CONFIG_NFS_V4_1 */
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/nfs/nfs4file.c linux-libre-4.4.107-gnu/fs/nfs/nfs4file.c
--- linux-libre-4.4-gnu/fs/nfs/nfs4file.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/nfs/nfs4file.c	2017-12-20 04:05:01.000000000 -0500
@@ -26,7 +26,7 @@ static int
 nfs4_file_open(struct inode *inode, struct file *filp)
 {
 	struct nfs_open_context *ctx;
-	struct dentry *dentry = filp->f_path.dentry;
+	struct dentry *dentry = file_dentry(filp);
 	struct dentry *parent = NULL;
 	struct inode *dir;
 	unsigned openflags = filp->f_flags;
@@ -57,7 +57,7 @@ nfs4_file_open(struct inode *inode, stru
 	parent = dget_parent(dentry);
 	dir = d_inode(parent);
 
-	ctx = alloc_nfs_open_context(filp->f_path.dentry, filp->f_mode);
+	ctx = alloc_nfs_open_context(file_dentry(filp), filp->f_mode);
 	err = PTR_ERR(ctx);
 	if (IS_ERR(ctx))
 		goto out;
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/nfs/nfs4proc.c linux-libre-4.4.107-gnu/fs/nfs/nfs4proc.c
--- linux-libre-4.4-gnu/fs/nfs/nfs4proc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/nfs/nfs4proc.c	2017-12-20 04:05:01.000000000 -0500
@@ -38,7 +38,6 @@
 #include <linux/mm.h>
 #include <linux/delay.h>
 #include <linux/errno.h>
-#include <linux/file.h>
 #include <linux/string.h>
 #include <linux/ratelimit.h>
 #include <linux/printk.h>
@@ -242,15 +241,12 @@ const u32 nfs4_fsinfo_bitmap[3] = { FATT
 };
 
 const u32 nfs4_fs_locations_bitmap[3] = {
-	FATTR4_WORD0_TYPE
-	| FATTR4_WORD0_CHANGE
+	FATTR4_WORD0_CHANGE
 	| FATTR4_WORD0_SIZE
 	| FATTR4_WORD0_FSID
 	| FATTR4_WORD0_FILEID
 	| FATTR4_WORD0_FS_LOCATIONS,
-	FATTR4_WORD1_MODE
-	| FATTR4_WORD1_NUMLINKS
-	| FATTR4_WORD1_OWNER
+	FATTR4_WORD1_OWNER
 	| FATTR4_WORD1_OWNER_GROUP
 	| FATTR4_WORD1_RAWDEV
 	| FATTR4_WORD1_SPACE_USED
@@ -1385,6 +1381,7 @@ static void __update_open_stateid(struct
 	 * Protect the call to nfs4_state_set_mode_locked and
 	 * serialise the stateid update
 	 */
+	spin_lock(&state->owner->so_lock);
 	write_seqlock(&state->seqlock);
 	if (deleg_stateid != NULL) {
 		nfs4_stateid_copy(&state->stateid, deleg_stateid);
@@ -1393,7 +1390,6 @@ static void __update_open_stateid(struct
 	if (open_stateid != NULL)
 		nfs_set_open_stateid_locked(state, open_stateid, fmode);
 	write_sequnlock(&state->seqlock);
-	spin_lock(&state->owner->so_lock);
 	update_open_stateflags(state, fmode);
 	spin_unlock(&state->owner->so_lock);
 }
@@ -2188,8 +2184,6 @@ static int nfs4_opendata_access(struct r
 	if ((mask & ~cache.mask & (MAY_READ | MAY_EXEC)) == 0)
 		return 0;
 
-	/* even though OPEN succeeded, access is denied. Close the file */
-	nfs4_close_state(state, fmode);
 	return -EACCES;
 }
 
@@ -2422,7 +2416,8 @@ static inline void nfs4_exclusive_attrse
 		sattr->ia_valid |= ATTR_MTIME;
 
 	/* Except MODE, it seems harmless of setting twice. */
-	if ((attrset[1] & FATTR4_WORD1_MODE))
+	if (opendata->o_arg.createmode != NFS4_CREATE_EXCLUSIVE &&
+		attrset[1] & FATTR4_WORD1_MODE)
 		sattr->ia_valid &= ~ATTR_MODE;
 
 	if (attrset[2] & FATTR4_WORD2_SECURITY_LABEL)
@@ -2451,6 +2446,7 @@ static int _nfs4_open_and_get_state(stru
 	ret = PTR_ERR(state);
 	if (IS_ERR(state))
 		goto out;
+	ctx->state = state;
 	if (server->caps & NFS_CAP_POSIX_LOCK)
 		set_bit(NFS_STATE_POSIX_LOCKS, &state->flags);
 
@@ -2461,9 +2457,9 @@ static int _nfs4_open_and_get_state(stru
 		dentry = d_add_unique(dentry, igrab(state->inode));
 		if (dentry == NULL) {
 			dentry = opendata->dentry;
-		} else if (dentry != ctx->dentry) {
+		} else {
 			dput(ctx->dentry);
-			ctx->dentry = dget(dentry);
+			ctx->dentry = dentry;
 		}
 		nfs_set_verifier(dentry,
 				nfs_save_change_attribute(d_inode(opendata->dir)));
@@ -2473,7 +2469,6 @@ static int _nfs4_open_and_get_state(stru
 	if (ret != 0)
 		goto out;
 
-	ctx->state = state;
 	if (d_inode(dentry) == state->inode) {
 		nfs_inode_attach_open_context(ctx);
 		if (read_seqcount_retry(&sp->so_reclaim_seqcount, seq))
@@ -2854,12 +2849,11 @@ static void nfs4_close_prepare(struct rp
 			call_close |= is_wronly;
 		else if (is_wronly)
 			calldata->arg.fmode |= FMODE_WRITE;
+		if (calldata->arg.fmode != (FMODE_READ|FMODE_WRITE))
+			call_close |= is_rdwr;
 	} else if (is_rdwr)
 		calldata->arg.fmode |= FMODE_READ|FMODE_WRITE;
 
-	if (calldata->arg.fmode == 0)
-		call_close |= is_rdwr;
-
 	if (!nfs4_valid_open_stateid(state))
 		call_close = 0;
 	spin_unlock(&state->owner->so_lock);
@@ -4711,7 +4705,7 @@ out:
  */
 static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t buflen)
 {
-	struct page *pages[NFS4ACL_MAXPAGES] = {NULL, };
+	struct page *pages[NFS4ACL_MAXPAGES + 1] = {NULL, };
 	struct nfs_getaclargs args = {
 		.fh = NFS_FH(inode),
 		.acl_pages = pages,
@@ -4725,13 +4719,9 @@ static ssize_t __nfs4_get_acl_uncached(s
 		.rpc_argp = &args,
 		.rpc_resp = &res,
 	};
-	unsigned int npages = DIV_ROUND_UP(buflen, PAGE_SIZE);
+	unsigned int npages = DIV_ROUND_UP(buflen, PAGE_SIZE) + 1;
 	int ret = -ENOMEM, i;
 
-	/* As long as we're doing a round trip to the server anyway,
-	 * let's be prepared for a page of acl data. */
-	if (npages == 0)
-		npages = 1;
 	if (npages > ARRAY_SIZE(pages))
 		return -ERANGE;
 
@@ -5747,7 +5737,6 @@ static struct nfs4_lockdata *nfs4_alloc_
 	p->server = server;
 	atomic_inc(&lsp->ls_count);
 	p->ctx = get_nfs_open_context(ctx);
-	get_file(fl->fl_file);
 	memcpy(&p->fl, fl, sizeof(p->fl));
 	return p;
 out_free_seqid:
@@ -5860,7 +5849,6 @@ static void nfs4_lock_release(void *call
 		nfs_free_seqid(data->arg.lock_seqid);
 	nfs4_put_lock_state(data->lsp);
 	put_nfs_open_context(data->ctx);
-	fput(data->fl.fl_file);
 	kfree(data);
 	dprintk("%s: done!\n", __func__);
 }
@@ -6357,9 +6345,7 @@ static int _nfs4_proc_fs_locations(struc
 				   struct page *page)
 {
 	struct nfs_server *server = NFS_SERVER(dir);
-	u32 bitmask[3] = {
-		[0] = FATTR4_WORD0_FSID | FATTR4_WORD0_FS_LOCATIONS,
-	};
+	u32 bitmask[3];
 	struct nfs4_fs_locations_arg args = {
 		.dir_fh = NFS_FH(dir),
 		.name = name,
@@ -6378,12 +6364,15 @@ static int _nfs4_proc_fs_locations(struc
 
 	dprintk("%s: start\n", __func__);
 
+	bitmask[0] = nfs4_fattr_bitmap[0] | FATTR4_WORD0_FS_LOCATIONS;
+	bitmask[1] = nfs4_fattr_bitmap[1];
+
 	/* Ask for the fileid of the absent filesystem if mounted_on_fileid
 	 * is not supported */
 	if (NFS_SERVER(dir)->attr_bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)
-		bitmask[1] |= FATTR4_WORD1_MOUNTED_ON_FILEID;
+		bitmask[0] &= ~FATTR4_WORD0_FILEID;
 	else
-		bitmask[0] |= FATTR4_WORD0_FILEID;
+		bitmask[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID;
 
 	nfs_fattr_init(&fs_locations->fattr);
 	fs_locations->server = server;
@@ -7425,12 +7414,20 @@ static int _nfs4_proc_create_session(str
 	status = rpc_call_sync(session->clp->cl_rpcclient, &msg, RPC_TASK_TIMEOUT);
 	trace_nfs4_create_session(clp, status);
 
+	switch (status) {
+	case -NFS4ERR_STALE_CLIENTID:
+	case -NFS4ERR_DELAY:
+	case -ETIMEDOUT:
+	case -EACCES:
+	case -EAGAIN:
+		goto out;
+	};
+
+	clp->cl_seqid++;
 	if (!status) {
 		/* Verify the session's negotiated channel_attrs values */
 		status = nfs4_verify_channel_attrs(&args, &res);
 		/* Increment the clientid slot sequence id */
-		if (clp->cl_seqid == res.seqid)
-			clp->cl_seqid++;
 		if (status)
 			goto out;
 		nfs4_update_session(session, &res);
@@ -8054,7 +8051,6 @@ static void nfs4_layoutreturn_release(vo
 		pnfs_set_layout_stateid(lo, &lrp->res.stateid, true);
 	pnfs_mark_matching_lsegs_invalid(lo, &freeme, &lrp->args.range);
 	pnfs_clear_layoutreturn_waitbit(lo);
-	lo->plh_block_lgets--;
 	spin_unlock(&lo->plh_inode->i_lock);
 	pnfs_free_lseg_list(&freeme);
 	pnfs_put_layout_hdr(lrp->args.layout);
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/nfs/nfs4state.c linux-libre-4.4.107-gnu/fs/nfs/nfs4state.c
--- linux-libre-4.4-gnu/fs/nfs/nfs4state.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/nfs/nfs4state.c	2017-12-20 04:05:01.000000000 -0500
@@ -1072,6 +1072,7 @@ static void nfs_increment_seqid(int stat
 		case -NFS4ERR_BADXDR:
 		case -NFS4ERR_RESOURCE:
 		case -NFS4ERR_NOFILEHANDLE:
+		case -NFS4ERR_MOVED:
 			/* Non-seqid mutating errors */
 			return;
 	};
@@ -1493,6 +1494,9 @@ restart:
 					__func__, status);
 			case -ENOENT:
 			case -ENOMEM:
+			case -EACCES:
+			case -EROFS:
+			case -EIO:
 			case -ESTALE:
 				/* Open state on this file cannot be recovered */
 				nfs4_state_mark_recovery_failed(state, status);
@@ -1676,7 +1680,6 @@ static int nfs4_recovery_handle_error(st
 			break;
 		case -NFS4ERR_STALE_CLIENTID:
 			set_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state);
-			nfs4_state_clear_reclaim_reboot(clp);
 			nfs4_state_start_reclaim_reboot(clp);
 			break;
 		case -NFS4ERR_EXPIRED:
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/nfs/nfs4xdr.c linux-libre-4.4.107-gnu/fs/nfs/nfs4xdr.c
--- linux-libre-4.4-gnu/fs/nfs/nfs4xdr.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/nfs/nfs4xdr.c	2017-12-20 04:05:01.000000000 -0500
@@ -2487,7 +2487,7 @@ static void nfs4_xdr_enc_getacl(struct r
 	encode_compound_hdr(xdr, req, &hdr);
 	encode_sequence(xdr, &args->seq_args, &hdr);
 	encode_putfh(xdr, args->fh, &hdr);
-	replen = hdr.replen + op_decode_hdr_maxsz + 1;
+	replen = hdr.replen + op_decode_hdr_maxsz;
 	encode_getattr_two(xdr, FATTR4_WORD0_ACL, 0, &hdr);
 
 	xdr_inline_pages(&req->rq_rcv_buf, replen << 2,
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/nfs/pagelist.c linux-libre-4.4.107-gnu/fs/nfs/pagelist.c
--- linux-libre-4.4-gnu/fs/nfs/pagelist.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/nfs/pagelist.c	2017-12-20 04:05:01.000000000 -0500
@@ -528,16 +528,6 @@ struct nfs_pgio_header *nfs_pgio_header_
 }
 EXPORT_SYMBOL_GPL(nfs_pgio_header_alloc);
 
-/*
- * nfs_pgio_header_free - Free a read or write header
- * @hdr: The header to free
- */
-void nfs_pgio_header_free(struct nfs_pgio_header *hdr)
-{
-	hdr->rw_ops->rw_free_header(hdr);
-}
-EXPORT_SYMBOL_GPL(nfs_pgio_header_free);
-
 /**
  * nfs_pgio_data_destroy - make @hdr suitable for reuse
  *
@@ -546,14 +536,24 @@ EXPORT_SYMBOL_GPL(nfs_pgio_header_free);
  *
  * @hdr: A header that has had nfs_generic_pgio called
  */
-void nfs_pgio_data_destroy(struct nfs_pgio_header *hdr)
+static void nfs_pgio_data_destroy(struct nfs_pgio_header *hdr)
 {
 	if (hdr->args.context)
 		put_nfs_open_context(hdr->args.context);
 	if (hdr->page_array.pagevec != hdr->page_array.page_array)
 		kfree(hdr->page_array.pagevec);
 }
-EXPORT_SYMBOL_GPL(nfs_pgio_data_destroy);
+
+/*
+ * nfs_pgio_header_free - Free a read or write header
+ * @hdr: The header to free
+ */
+void nfs_pgio_header_free(struct nfs_pgio_header *hdr)
+{
+	nfs_pgio_data_destroy(hdr);
+	hdr->rw_ops->rw_free_header(hdr);
+}
+EXPORT_SYMBOL_GPL(nfs_pgio_header_free);
 
 /**
  * nfs_pgio_rpcsetup - Set up arguments for a pageio call
@@ -671,7 +671,6 @@ static int nfs_pgio_error(struct nfs_pag
 	u32 midx;
 
 	set_bit(NFS_IOHDR_REDO, &hdr->flags);
-	nfs_pgio_data_destroy(hdr);
 	hdr->completion_ops->completion(hdr);
 	/* TODO: Make sure it's right to clean up all mirrors here
 	 *       and not just hdr->pgio_mirror_idx */
@@ -689,7 +688,6 @@ static int nfs_pgio_error(struct nfs_pag
 static void nfs_pgio_release(void *calldata)
 {
 	struct nfs_pgio_header *hdr = calldata;
-	nfs_pgio_data_destroy(hdr);
 	hdr->completion_ops->completion(hdr);
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/nfs/pnfs.c linux-libre-4.4.107-gnu/fs/nfs/pnfs.c
--- linux-libre-4.4-gnu/fs/nfs/pnfs.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/nfs/pnfs.c	2017-12-20 04:05:01.000000000 -0500
@@ -365,6 +365,9 @@ pnfs_layout_need_return(struct pnfs_layo
 static bool
 pnfs_prepare_layoutreturn(struct pnfs_layout_hdr *lo)
 {
+	/* Serialise LAYOUTGET/LAYOUTRETURN */
+	if (atomic_read(&lo->plh_outstanding) != 0)
+		return false;
 	if (test_and_set_bit(NFS_LAYOUT_RETURN, &lo->plh_flags))
 		return false;
 	lo->plh_return_iomode = 0;
@@ -1182,13 +1185,11 @@ bool pnfs_wait_on_layoutreturn(struct in
 	 * i_lock */
         spin_lock(&ino->i_lock);
         lo = nfsi->layout;
-        if (lo && test_bit(NFS_LAYOUT_RETURN, &lo->plh_flags))
+        if (lo && test_bit(NFS_LAYOUT_RETURN, &lo->plh_flags)) {
+                rpc_sleep_on(&NFS_SERVER(ino)->roc_rpcwaitq, task, NULL);
                 sleep = true;
+	}
         spin_unlock(&ino->i_lock);
-
-        if (sleep)
-                rpc_sleep_on(&NFS_SERVER(ino)->roc_rpcwaitq, task, NULL);
-
         return sleep;
 }
 
@@ -1530,6 +1531,7 @@ pnfs_update_layout(struct inode *ino,
 		goto out;
 
 lookup_again:
+	nfs4_client_recover_expired_lease(clp);
 	first = false;
 	spin_lock(&ino->i_lock);
 	lo = pnfs_find_alloc_layout(ino, ctx, gfp_flags);
@@ -1941,7 +1943,6 @@ pnfs_write_through_mds(struct nfs_pageio
 		nfs_pageio_reset_write_mds(desc);
 		mirror->pg_recoalesce = 1;
 	}
-	nfs_pgio_data_destroy(hdr);
 	hdr->release(hdr);
 }
 
@@ -2057,7 +2058,6 @@ pnfs_read_through_mds(struct nfs_pageio_
 		nfs_pageio_reset_read_mds(desc);
 		mirror->pg_recoalesce = 1;
 	}
-	nfs_pgio_data_destroy(hdr);
 	hdr->release(hdr);
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/nfs/super.c linux-libre-4.4.107-gnu/fs/nfs/super.c
--- linux-libre-4.4-gnu/fs/nfs/super.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/nfs/super.c	2017-12-20 04:05:01.000000000 -0500
@@ -1322,7 +1322,7 @@ static int nfs_parse_mount_options(char
 			mnt->options |= NFS_OPTION_MIGRATION;
 			break;
 		case Opt_nomigration:
-			mnt->options &= NFS_OPTION_MIGRATION;
+			mnt->options &= ~NFS_OPTION_MIGRATION;
 			break;
 
 		/*
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/nfs/write.c linux-libre-4.4.107-gnu/fs/nfs/write.c
--- linux-libre-4.4-gnu/fs/nfs/write.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/nfs/write.c	2017-12-20 04:05:01.000000000 -0500
@@ -1261,6 +1261,9 @@ int nfs_updatepage(struct file *file, st
 	dprintk("NFS:       nfs_updatepage(%pD2 %d@%lld)\n",
 		file, count, (long long)(page_file_offset(page) + offset));
 
+	if (!count)
+		goto out;
+
 	if (nfs_can_extend_write(file, page, inode)) {
 		count = max(count + offset, nfs_page_length(page));
 		offset = 0;
@@ -1271,7 +1274,7 @@ int nfs_updatepage(struct file *file, st
 		nfs_set_pageerror(page);
 	else
 		__set_page_dirty_nobuffers(page);
-
+out:
 	dprintk("NFS:       nfs_updatepage returns %d (isize %lld)\n",
 			status, (long long)i_size_read(inode));
 	return status;
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/nfsd/blocklayout.c linux-libre-4.4.107-gnu/fs/nfsd/blocklayout.c
--- linux-libre-4.4-gnu/fs/nfsd/blocklayout.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/nfsd/blocklayout.c	2017-12-20 04:05:01.000000000 -0500
@@ -50,7 +50,7 @@ nfsd4_block_proc_layoutget(struct inode
 {
 	struct nfsd4_layout_seg *seg = &args->lg_seg;
 	struct super_block *sb = inode->i_sb;
-	u32 block_size = (1 << inode->i_blkbits);
+	u32 block_size = i_blocksize(inode);
 	struct pnfs_block_extent *bex;
 	struct iomap iomap;
 	u32 device_generation = 0;
@@ -151,7 +151,7 @@ nfsd4_block_proc_layoutcommit(struct ino
 	int error;
 
 	nr_iomaps = nfsd4_block_decode_layoutupdate(lcp->lc_up_layout,
-			lcp->lc_up_len, &iomaps, 1 << inode->i_blkbits);
+			lcp->lc_up_len, &iomaps, i_blocksize(inode));
 	if (nr_iomaps < 0)
 		return nfserrno(nr_iomaps);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/nfsd/nfs2acl.c linux-libre-4.4.107-gnu/fs/nfsd/nfs2acl.c
--- linux-libre-4.4-gnu/fs/nfsd/nfs2acl.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/nfsd/nfs2acl.c	2017-12-20 04:05:01.000000000 -0500
@@ -104,22 +104,21 @@ static __be32 nfsacld_proc_setacl(struct
 		goto out;
 
 	inode = d_inode(fh->fh_dentry);
-	if (!IS_POSIXACL(inode) || !inode->i_op->set_acl) {
-		error = -EOPNOTSUPP;
-		goto out_errno;
-	}
 
 	error = fh_want_write(fh);
 	if (error)
 		goto out_errno;
 
-	error = inode->i_op->set_acl(inode, argp->acl_access, ACL_TYPE_ACCESS);
+	fh_lock(fh);
+
+	error = set_posix_acl(inode, ACL_TYPE_ACCESS, argp->acl_access);
 	if (error)
-		goto out_drop_write;
-	error = inode->i_op->set_acl(inode, argp->acl_default,
-				     ACL_TYPE_DEFAULT);
+		goto out_drop_lock;
+	error = set_posix_acl(inode, ACL_TYPE_DEFAULT, argp->acl_default);
 	if (error)
-		goto out_drop_write;
+		goto out_drop_lock;
+
+	fh_unlock(fh);
 
 	fh_drop_write(fh);
 
@@ -131,7 +130,8 @@ out:
 	posix_acl_release(argp->acl_access);
 	posix_acl_release(argp->acl_default);
 	return nfserr;
-out_drop_write:
+out_drop_lock:
+	fh_unlock(fh);
 	fh_drop_write(fh);
 out_errno:
 	nfserr = nfserrno(error);
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/nfsd/nfs3acl.c linux-libre-4.4.107-gnu/fs/nfsd/nfs3acl.c
--- linux-libre-4.4-gnu/fs/nfsd/nfs3acl.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/nfsd/nfs3acl.c	2017-12-20 04:05:01.000000000 -0500
@@ -95,22 +95,20 @@ static __be32 nfsd3_proc_setacl(struct s
 		goto out;
 
 	inode = d_inode(fh->fh_dentry);
-	if (!IS_POSIXACL(inode) || !inode->i_op->set_acl) {
-		error = -EOPNOTSUPP;
-		goto out_errno;
-	}
 
 	error = fh_want_write(fh);
 	if (error)
 		goto out_errno;
 
-	error = inode->i_op->set_acl(inode, argp->acl_access, ACL_TYPE_ACCESS);
+	fh_lock(fh);
+
+	error = set_posix_acl(inode, ACL_TYPE_ACCESS, argp->acl_access);
 	if (error)
-		goto out_drop_write;
-	error = inode->i_op->set_acl(inode, argp->acl_default,
-				     ACL_TYPE_DEFAULT);
+		goto out_drop_lock;
+	error = set_posix_acl(inode, ACL_TYPE_DEFAULT, argp->acl_default);
 
-out_drop_write:
+out_drop_lock:
+	fh_unlock(fh);
 	fh_drop_write(fh);
 out_errno:
 	nfserr = nfserrno(error);
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/nfsd/nfs3xdr.c linux-libre-4.4.107-gnu/fs/nfsd/nfs3xdr.c
--- linux-libre-4.4-gnu/fs/nfsd/nfs3xdr.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/nfsd/nfs3xdr.c	2017-12-20 04:05:01.000000000 -0500
@@ -358,6 +358,7 @@ nfs3svc_decode_writeargs(struct svc_rqst
 {
 	unsigned int len, v, hdr, dlen;
 	u32 max_blocksize = svc_max_payload(rqstp);
+	struct kvec *head = rqstp->rq_arg.head;
 
 	p = decode_fh(p, &args->fh);
 	if (!p)
@@ -367,6 +368,8 @@ nfs3svc_decode_writeargs(struct svc_rqst
 	args->count = ntohl(*p++);
 	args->stable = ntohl(*p++);
 	len = args->len = ntohl(*p++);
+	if ((void *)p > head->iov_base + head->iov_len)
+		return 0;
 	/*
 	 * The count must equal the amount of data passed.
 	 */
@@ -377,9 +380,8 @@ nfs3svc_decode_writeargs(struct svc_rqst
 	 * Check to make sure that we got the right number of
 	 * bytes.
 	 */
-	hdr = (void*)p - rqstp->rq_arg.head[0].iov_base;
-	dlen = rqstp->rq_arg.head[0].iov_len + rqstp->rq_arg.page_len
-		- hdr;
+	hdr = (void*)p - head->iov_base;
+	dlen = head->iov_len + rqstp->rq_arg.page_len - hdr;
 	/*
 	 * Round the length of the data which was specified up to
 	 * the next multiple of XDR units and then compare that
@@ -396,7 +398,7 @@ nfs3svc_decode_writeargs(struct svc_rqst
 		len = args->len = max_blocksize;
 	}
 	rqstp->rq_vec[0].iov_base = (void*)p;
-	rqstp->rq_vec[0].iov_len = rqstp->rq_arg.head[0].iov_len - hdr;
+	rqstp->rq_vec[0].iov_len = head->iov_len - hdr;
 	v = 0;
 	while (len > rqstp->rq_vec[v].iov_len) {
 		len -= rqstp->rq_vec[v].iov_len;
@@ -471,6 +473,8 @@ nfs3svc_decode_symlinkargs(struct svc_rq
 	/* first copy and check from the first page */
 	old = (char*)p;
 	vec = &rqstp->rq_arg.head[0];
+	if ((void *)old > vec->iov_base + vec->iov_len)
+		return 0;
 	avail = vec->iov_len - (old - (char*)vec->iov_base);
 	while (len && avail && *old) {
 		*new++ = *old++;
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/nfsd/nfs4acl.c linux-libre-4.4.107-gnu/fs/nfsd/nfs4acl.c
--- linux-libre-4.4-gnu/fs/nfsd/nfs4acl.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/nfsd/nfs4acl.c	2017-12-20 04:05:01.000000000 -0500
@@ -770,9 +770,6 @@ nfsd4_set_nfs4_acl(struct svc_rqst *rqst
 	dentry = fhp->fh_dentry;
 	inode = d_inode(dentry);
 
-	if (!inode->i_op->set_acl || !IS_POSIXACL(inode))
-		return nfserr_attrnotsupp;
-
 	if (S_ISDIR(inode->i_mode))
 		flags = NFS4_ACL_DIR;
 
@@ -782,16 +779,19 @@ nfsd4_set_nfs4_acl(struct svc_rqst *rqst
 	if (host_error < 0)
 		goto out_nfserr;
 
-	host_error = inode->i_op->set_acl(inode, pacl, ACL_TYPE_ACCESS);
+	fh_lock(fhp);
+
+	host_error = set_posix_acl(inode, ACL_TYPE_ACCESS, pacl);
 	if (host_error < 0)
-		goto out_release;
+		goto out_drop_lock;
 
 	if (S_ISDIR(inode->i_mode)) {
-		host_error = inode->i_op->set_acl(inode, dpacl,
-						  ACL_TYPE_DEFAULT);
+		host_error = set_posix_acl(inode, ACL_TYPE_DEFAULT, dpacl);
 	}
 
-out_release:
+out_drop_lock:
+	fh_unlock(fhp);
+
 	posix_acl_release(pacl);
 	posix_acl_release(dpacl);
 out_nfserr:
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/nfsd/nfs4callback.c linux-libre-4.4.107-gnu/fs/nfsd/nfs4callback.c
--- linux-libre-4.4-gnu/fs/nfsd/nfs4callback.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/nfsd/nfs4callback.c	2017-12-20 04:05:01.000000000 -0500
@@ -696,6 +696,14 @@ int set_callback_cred(void)
 	return 0;
 }
 
+void cleanup_callback_cred(void)
+{
+	if (callback_cred) {
+		put_rpccred(callback_cred);
+		callback_cred = NULL;
+	}
+}
+
 static struct rpc_cred *get_backchannel_cred(struct nfs4_client *clp, struct rpc_clnt *client, struct nfsd4_session *ses)
 {
 	if (clp->cl_minorversion == 0) {
@@ -710,22 +718,6 @@ static struct rpc_cred *get_backchannel_
 	}
 }
 
-static struct rpc_clnt *create_backchannel_client(struct rpc_create_args *args)
-{
-	struct rpc_xprt *xprt;
-
-	if (args->protocol != XPRT_TRANSPORT_BC_TCP)
-		return rpc_create(args);
-
-	xprt = args->bc_xprt->xpt_bc_xprt;
-	if (xprt) {
-		xprt_get(xprt);
-		return rpc_create_xprt(args, xprt);
-	}
-
-	return rpc_create(args);
-}
-
 static int setup_callback_client(struct nfs4_client *clp, struct nfs4_cb_conn *conn, struct nfsd4_session *ses)
 {
 	int maxtime = max_cb_time(clp->net);
@@ -768,7 +760,7 @@ static int setup_callback_client(struct
 		args.authflavor = ses->se_cb_sec.flavor;
 	}
 	/* Create RPC client */
-	client = create_backchannel_client(&args);
+	client = rpc_create(&args);
 	if (IS_ERR(client)) {
 		dprintk("NFSD: couldn't create callback client: %ld\n",
 			PTR_ERR(client));
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/nfsd/nfs4layouts.c linux-libre-4.4.107-gnu/fs/nfsd/nfs4layouts.c
--- linux-libre-4.4-gnu/fs/nfsd/nfs4layouts.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/nfsd/nfs4layouts.c	2017-12-20 04:05:01.000000000 -0500
@@ -189,10 +189,11 @@ nfsd4_alloc_layout_stateid(struct nfsd4_
 	struct nfs4_layout_stateid *ls;
 	struct nfs4_stid *stp;
 
-	stp = nfs4_alloc_stid(cstate->clp, nfs4_layout_stateid_cache);
+	stp = nfs4_alloc_stid(cstate->clp, nfs4_layout_stateid_cache,
+					nfsd4_free_layout_stateid);
 	if (!stp)
 		return NULL;
-	stp->sc_free = nfsd4_free_layout_stateid;
+
 	get_nfs4_file(fp);
 	stp->sc_file = fp;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/nfsd/nfs4proc.c linux-libre-4.4.107-gnu/fs/nfsd/nfs4proc.c
--- linux-libre-4.4-gnu/fs/nfsd/nfs4proc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/nfsd/nfs4proc.c	2017-12-20 04:05:01.000000000 -0500
@@ -877,6 +877,7 @@ nfsd4_secinfo(struct svc_rqst *rqstp, st
 				    &exp, &dentry);
 	if (err)
 		return err;
+	fh_unlock(&cstate->current_fh);
 	if (d_really_is_negative(dentry)) {
 		exp_put(exp);
 		err = nfserr_noent;
@@ -1689,6 +1690,12 @@ nfsd4_proc_compound(struct svc_rqst *rqs
 			opdesc->op_get_currentstateid(cstate, &op->u);
 		op->status = opdesc->op_func(rqstp, cstate, &op->u);
 
+		/* Only from SEQUENCE */
+		if (cstate->status == nfserr_replay_cache) {
+			dprintk("%s NFS4.1 replay from cache\n", __func__);
+			status = op->status;
+			goto out;
+		}
 		if (!op->status) {
 			if (opdesc->op_set_currentstateid)
 				opdesc->op_set_currentstateid(cstate, &op->u);
@@ -1699,14 +1706,7 @@ nfsd4_proc_compound(struct svc_rqst *rqs
 			if (need_wrongsec_check(rqstp))
 				op->status = check_nfsd_access(current_fh->fh_export, rqstp);
 		}
-
 encode_op:
-		/* Only from SEQUENCE */
-		if (cstate->status == nfserr_replay_cache) {
-			dprintk("%s NFS4.1 replay from cache\n", __func__);
-			status = op->status;
-			goto out;
-		}
 		if (op->status == nfserr_replay_me) {
 			op->replay = &cstate->replay_owner->so_replay;
 			nfsd4_encode_replay(&resp->xdr, op);
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/nfsd/nfs4state.c linux-libre-4.4.107-gnu/fs/nfsd/nfs4state.c
--- linux-libre-4.4-gnu/fs/nfsd/nfs4state.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/nfsd/nfs4state.c	2017-12-20 04:05:01.000000000 -0500
@@ -553,8 +553,8 @@ out:
 	return co;
 }
 
-struct nfs4_stid *nfs4_alloc_stid(struct nfs4_client *cl,
-					 struct kmem_cache *slab)
+struct nfs4_stid *nfs4_alloc_stid(struct nfs4_client *cl, struct kmem_cache *slab,
+				  void (*sc_free)(struct nfs4_stid *))
 {
 	struct nfs4_stid *stid;
 	int new_id;
@@ -570,6 +570,8 @@ struct nfs4_stid *nfs4_alloc_stid(struct
 	idr_preload_end();
 	if (new_id < 0)
 		goto out_free;
+
+	stid->sc_free = sc_free;
 	stid->sc_client = cl;
 	stid->sc_stateid.si_opaque.so_id = new_id;
 	stid->sc_stateid.si_opaque.so_clid = cl->cl_clientid;
@@ -595,15 +597,12 @@ out_free:
 static struct nfs4_ol_stateid * nfs4_alloc_open_stateid(struct nfs4_client *clp)
 {
 	struct nfs4_stid *stid;
-	struct nfs4_ol_stateid *stp;
 
-	stid = nfs4_alloc_stid(clp, stateid_slab);
+	stid = nfs4_alloc_stid(clp, stateid_slab, nfs4_free_ol_stateid);
 	if (!stid)
 		return NULL;
 
-	stp = openlockstateid(stid);
-	stp->st_stid.sc_free = nfs4_free_ol_stateid;
-	return stp;
+	return openlockstateid(stid);
 }
 
 static void nfs4_free_deleg(struct nfs4_stid *stid)
@@ -701,11 +700,10 @@ alloc_init_deleg(struct nfs4_client *clp
 		goto out_dec;
 	if (delegation_blocked(&current_fh->fh_handle))
 		goto out_dec;
-	dp = delegstateid(nfs4_alloc_stid(clp, deleg_slab));
+	dp = delegstateid(nfs4_alloc_stid(clp, deleg_slab, nfs4_free_deleg));
 	if (dp == NULL)
 		goto out_dec;
 
-	dp->dl_stid.sc_free = nfs4_free_deleg;
 	/*
 	 * delegation seqid's are never incremented.  The 4.1 special
 	 * meaning of seqid 0 isn't meaningful, really, but let's avoid
@@ -1147,9 +1145,7 @@ static void put_ol_stateid_locked(struct
 
 static bool unhash_lock_stateid(struct nfs4_ol_stateid *stp)
 {
-	struct nfs4_openowner *oo = openowner(stp->st_openstp->st_stateowner);
-
-	lockdep_assert_held(&oo->oo_owner.so_client->cl_lock);
+	lockdep_assert_held(&stp->st_stid.sc_client->cl_lock);
 
 	list_del_init(&stp->st_locks);
 	nfs4_unhash_stid(&stp->st_stid);
@@ -1158,12 +1154,12 @@ static bool unhash_lock_stateid(struct n
 
 static void release_lock_stateid(struct nfs4_ol_stateid *stp)
 {
-	struct nfs4_openowner *oo = openowner(stp->st_openstp->st_stateowner);
+	struct nfs4_client *clp = stp->st_stid.sc_client;
 	bool unhashed;
 
-	spin_lock(&oo->oo_owner.so_client->cl_lock);
+	spin_lock(&clp->cl_lock);
 	unhashed = unhash_lock_stateid(stp);
-	spin_unlock(&oo->oo_owner.so_client->cl_lock);
+	spin_unlock(&clp->cl_lock);
 	if (unhashed)
 		nfs4_put_stid(&stp->st_stid);
 }
@@ -1200,27 +1196,6 @@ free_ol_stateid_reaplist(struct list_hea
 	}
 }
 
-static void release_lockowner(struct nfs4_lockowner *lo)
-{
-	struct nfs4_client *clp = lo->lo_owner.so_client;
-	struct nfs4_ol_stateid *stp;
-	struct list_head reaplist;
-
-	INIT_LIST_HEAD(&reaplist);
-
-	spin_lock(&clp->cl_lock);
-	unhash_lockowner_locked(lo);
-	while (!list_empty(&lo->lo_owner.so_stateids)) {
-		stp = list_first_entry(&lo->lo_owner.so_stateids,
-				struct nfs4_ol_stateid, st_perstateowner);
-		WARN_ON(!unhash_lock_stateid(stp));
-		put_ol_stateid_locked(stp, &reaplist);
-	}
-	spin_unlock(&clp->cl_lock);
-	free_ol_stateid_reaplist(&reaplist);
-	nfs4_put_stateowner(&lo->lo_owner);
-}
-
 static void release_open_stateid_locks(struct nfs4_ol_stateid *open_stp,
 				       struct list_head *reaplist)
 {
@@ -3404,7 +3379,9 @@ nfsd4_find_existing_open(struct nfs4_fil
 		/* ignore lock owners */
 		if (local->st_stateowner->so_is_open_owner == 0)
 			continue;
-		if (local->st_stateowner == &oo->oo_owner) {
+		if (local->st_stateowner != &oo->oo_owner)
+			continue;
+		if (local->st_stid.sc_type == NFS4_OPEN_STID) {
 			ret = local;
 			atomic_inc(&ret->st_stid.sc_count);
 			break;
@@ -3413,6 +3390,52 @@ nfsd4_find_existing_open(struct nfs4_fil
 	return ret;
 }
 
+static __be32
+nfsd4_verify_open_stid(struct nfs4_stid *s)
+{
+	__be32 ret = nfs_ok;
+
+	switch (s->sc_type) {
+	default:
+		break;
+	case NFS4_CLOSED_STID:
+	case NFS4_CLOSED_DELEG_STID:
+		ret = nfserr_bad_stateid;
+		break;
+	case NFS4_REVOKED_DELEG_STID:
+		ret = nfserr_deleg_revoked;
+	}
+	return ret;
+}
+
+/* Lock the stateid st_mutex, and deal with races with CLOSE */
+static __be32
+nfsd4_lock_ol_stateid(struct nfs4_ol_stateid *stp)
+{
+	__be32 ret;
+
+	mutex_lock(&stp->st_mutex);
+	ret = nfsd4_verify_open_stid(&stp->st_stid);
+	if (ret != nfs_ok)
+		mutex_unlock(&stp->st_mutex);
+	return ret;
+}
+
+static struct nfs4_ol_stateid *
+nfsd4_find_and_lock_existing_open(struct nfs4_file *fp, struct nfsd4_open *open)
+{
+	struct nfs4_ol_stateid *stp;
+	for (;;) {
+		spin_lock(&fp->fi_lock);
+		stp = nfsd4_find_existing_open(fp, open);
+		spin_unlock(&fp->fi_lock);
+		if (!stp || nfsd4_lock_ol_stateid(stp) == nfs_ok)
+			break;
+		nfs4_put_stid(&stp->st_stid);
+	}
+	return stp;
+}
+
 static struct nfs4_openowner *
 alloc_init_open_stateowner(unsigned int strhashval, struct nfsd4_open *open,
 			   struct nfsd4_compound_state *cstate)
@@ -3445,19 +3468,27 @@ alloc_init_open_stateowner(unsigned int
 }
 
 static struct nfs4_ol_stateid *
-init_open_stateid(struct nfs4_ol_stateid *stp, struct nfs4_file *fp,
-		struct nfsd4_open *open)
+init_open_stateid(struct nfs4_file *fp, struct nfsd4_open *open)
 {
 
 	struct nfs4_openowner *oo = open->op_openowner;
 	struct nfs4_ol_stateid *retstp = NULL;
+	struct nfs4_ol_stateid *stp;
+
+	stp = open->op_stp;
+	/* We are moving these outside of the spinlocks to avoid the warnings */
+	mutex_init(&stp->st_mutex);
+	mutex_lock(&stp->st_mutex);
 
+retry:
 	spin_lock(&oo->oo_owner.so_client->cl_lock);
 	spin_lock(&fp->fi_lock);
 
 	retstp = nfsd4_find_existing_open(fp, open);
 	if (retstp)
 		goto out_unlock;
+
+	open->op_stp = NULL;
 	atomic_inc(&stp->st_stid.sc_count);
 	stp->st_stid.sc_type = NFS4_OPEN_STID;
 	INIT_LIST_HEAD(&stp->st_locks);
@@ -3467,14 +3498,23 @@ init_open_stateid(struct nfs4_ol_stateid
 	stp->st_access_bmap = 0;
 	stp->st_deny_bmap = 0;
 	stp->st_openstp = NULL;
-	init_rwsem(&stp->st_rwsem);
 	list_add(&stp->st_perstateowner, &oo->oo_owner.so_stateids);
 	list_add(&stp->st_perfile, &fp->fi_stateids);
 
 out_unlock:
 	spin_unlock(&fp->fi_lock);
 	spin_unlock(&oo->oo_owner.so_client->cl_lock);
-	return retstp;
+	if (retstp) {
+		/* Handle races with CLOSE */
+		if (nfsd4_lock_ol_stateid(retstp) != nfs_ok) {
+			nfs4_put_stid(&retstp->st_stid);
+			goto retry;
+		}
+		/* To keep mutex tracking happy */
+		mutex_unlock(&stp->st_mutex);
+		stp = retstp;
+	}
+	return stp;
 }
 
 /*
@@ -3846,7 +3886,8 @@ static struct nfs4_delegation *find_dele
 {
 	struct nfs4_stid *ret;
 
-	ret = find_stateid_by_type(cl, s, NFS4_DELEG_STID);
+	ret = find_stateid_by_type(cl, s,
+				NFS4_DELEG_STID|NFS4_REVOKED_DELEG_STID);
 	if (!ret)
 		return NULL;
 	return delegstateid(ret);
@@ -3869,6 +3910,12 @@ nfs4_check_deleg(struct nfs4_client *cl,
 	deleg = find_deleg_stateid(cl, &open->op_delegate_stateid);
 	if (deleg == NULL)
 		goto out;
+	if (deleg->dl_stid.sc_type == NFS4_REVOKED_DELEG_STID) {
+		nfs4_put_stid(&deleg->dl_stid);
+		if (cl->cl_minorversion)
+			status = nfserr_deleg_revoked;
+		goto out;
+	}
 	flags = share_access_to_flags(open->op_share_access);
 	status = nfs4_check_delegmode(deleg, flags);
 	if (status) {
@@ -4270,9 +4317,9 @@ nfsd4_process_open2(struct svc_rqst *rqs
 	struct nfs4_client *cl = open->op_openowner->oo_owner.so_client;
 	struct nfs4_file *fp = NULL;
 	struct nfs4_ol_stateid *stp = NULL;
-	struct nfs4_ol_stateid *swapstp = NULL;
 	struct nfs4_delegation *dp = NULL;
 	__be32 status;
+	bool new_stp = false;
 
 	/*
 	 * Lookup file; if found, lookup stateid and check open request,
@@ -4284,9 +4331,7 @@ nfsd4_process_open2(struct svc_rqst *rqs
 		status = nfs4_check_deleg(cl, open, &dp);
 		if (status)
 			goto out;
-		spin_lock(&fp->fi_lock);
-		stp = nfsd4_find_existing_open(fp, open);
-		spin_unlock(&fp->fi_lock);
+		stp = nfsd4_find_and_lock_existing_open(fp, open);
 	} else {
 		open->op_file = NULL;
 		status = nfserr_bad_stateid;
@@ -4294,39 +4339,31 @@ nfsd4_process_open2(struct svc_rqst *rqs
 			goto out;
 	}
 
+	if (!stp) {
+		stp = init_open_stateid(fp, open);
+		if (!open->op_stp)
+			new_stp = true;
+	}
+
 	/*
 	 * OPEN the file, or upgrade an existing OPEN.
 	 * If truncate fails, the OPEN fails.
+	 *
+	 * stp is already locked.
 	 */
-	if (stp) {
+	if (!new_stp) {
 		/* Stateid was found, this is an OPEN upgrade */
-		down_read(&stp->st_rwsem);
 		status = nfs4_upgrade_open(rqstp, fp, current_fh, stp, open);
 		if (status) {
-			up_read(&stp->st_rwsem);
+			mutex_unlock(&stp->st_mutex);
 			goto out;
 		}
 	} else {
-		stp = open->op_stp;
-		open->op_stp = NULL;
-		swapstp = init_open_stateid(stp, fp, open);
-		if (swapstp) {
-			nfs4_put_stid(&stp->st_stid);
-			stp = swapstp;
-			down_read(&stp->st_rwsem);
-			status = nfs4_upgrade_open(rqstp, fp, current_fh,
-						stp, open);
-			if (status) {
-				up_read(&stp->st_rwsem);
-				goto out;
-			}
-			goto upgrade_out;
-		}
-		down_read(&stp->st_rwsem);
 		status = nfs4_get_vfs_file(rqstp, fp, current_fh, stp, open);
 		if (status) {
-			up_read(&stp->st_rwsem);
+			stp->st_stid.sc_type = NFS4_CLOSED_STID;
 			release_open_stateid(stp);
+			mutex_unlock(&stp->st_mutex);
 			goto out;
 		}
 
@@ -4335,9 +4372,9 @@ nfsd4_process_open2(struct svc_rqst *rqs
 		if (stp->st_clnt_odstate == open->op_odstate)
 			open->op_odstate = NULL;
 	}
-upgrade_out:
+
 	nfs4_inc_and_copy_stateid(&open->op_stateid, &stp->st_stid);
-	up_read(&stp->st_rwsem);
+	mutex_unlock(&stp->st_mutex);
 
 	if (nfsd4_has_session(&resp->cstate)) {
 		if (open->op_deleg_want & NFS4_SHARE_WANT_NO_DELEG) {
@@ -4711,6 +4748,16 @@ nfsd4_lookup_stateid(struct nfsd4_compou
 		     struct nfs4_stid **s, struct nfsd_net *nn)
 {
 	__be32 status;
+	bool return_revoked = false;
+
+	/*
+	 *  only return revoked delegations if explicitly asked.
+	 *  otherwise we report revoked or bad_stateid status.
+	 */
+	if (typemask & NFS4_REVOKED_DELEG_STID)
+		return_revoked = true;
+	else if (typemask & NFS4_DELEG_STID)
+		typemask |= NFS4_REVOKED_DELEG_STID;
 
 	if (ZERO_STATEID(stateid) || ONE_STATEID(stateid))
 		return nfserr_bad_stateid;
@@ -4725,6 +4772,12 @@ nfsd4_lookup_stateid(struct nfsd4_compou
 	*s = find_stateid_by_type(cstate->clp, stateid, typemask);
 	if (!*s)
 		return nfserr_bad_stateid;
+	if (((*s)->sc_type == NFS4_REVOKED_DELEG_STID) && !return_revoked) {
+		nfs4_put_stid(*s);
+		if (cstate->minorversion)
+			return nfserr_deleg_revoked;
+		return nfserr_bad_stateid;
+	}
 	return nfs_ok;
 }
 
@@ -4872,6 +4925,32 @@ nfsd4_test_stateid(struct svc_rqst *rqst
 	return nfs_ok;
 }
 
+static __be32
+nfsd4_free_lock_stateid(stateid_t *stateid, struct nfs4_stid *s)
+{
+	struct nfs4_ol_stateid *stp = openlockstateid(s);
+	__be32 ret;
+
+	mutex_lock(&stp->st_mutex);
+
+	ret = check_stateid_generation(stateid, &s->sc_stateid, 1);
+	if (ret)
+		goto out;
+
+	ret = nfserr_locks_held;
+	if (check_for_locks(stp->st_stid.sc_file,
+			    lockowner(stp->st_stateowner)))
+		goto out;
+
+	release_lock_stateid(stp);
+	ret = nfs_ok;
+
+out:
+	mutex_unlock(&stp->st_mutex);
+	nfs4_put_stid(s);
+	return ret;
+}
+
 __be32
 nfsd4_free_stateid(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
 		   struct nfsd4_free_stateid *free_stateid)
@@ -4879,7 +4958,6 @@ nfsd4_free_stateid(struct svc_rqst *rqst
 	stateid_t *stateid = &free_stateid->fr_stateid;
 	struct nfs4_stid *s;
 	struct nfs4_delegation *dp;
-	struct nfs4_ol_stateid *stp;
 	struct nfs4_client *cl = cstate->session->se_client;
 	__be32 ret = nfserr_bad_stateid;
 
@@ -4898,18 +4976,9 @@ nfsd4_free_stateid(struct svc_rqst *rqst
 		ret = nfserr_locks_held;
 		break;
 	case NFS4_LOCK_STID:
-		ret = check_stateid_generation(stateid, &s->sc_stateid, 1);
-		if (ret)
-			break;
-		stp = openlockstateid(s);
-		ret = nfserr_locks_held;
-		if (check_for_locks(stp->st_stid.sc_file,
-				    lockowner(stp->st_stateowner)))
-			break;
-		WARN_ON(!unhash_lock_stateid(stp));
+		atomic_inc(&s->sc_count);
 		spin_unlock(&cl->cl_lock);
-		nfs4_put_stid(s);
-		ret = nfs_ok;
+		ret = nfsd4_free_lock_stateid(stateid, s);
 		goto out;
 	case NFS4_REVOKED_DELEG_STID:
 		dp = delegstateid(s);
@@ -4950,12 +5019,12 @@ static __be32 nfs4_seqid_op_checks(struc
 		 * revoked delegations are kept only for free_stateid.
 		 */
 		return nfserr_bad_stateid;
-	down_write(&stp->st_rwsem);
+	mutex_lock(&stp->st_mutex);
 	status = check_stateid_generation(stateid, &stp->st_stid.sc_stateid, nfsd4_has_session(cstate));
 	if (status == nfs_ok)
 		status = nfs4_check_fh(current_fh, &stp->st_stid);
 	if (status != nfs_ok)
-		up_write(&stp->st_rwsem);
+		mutex_unlock(&stp->st_mutex);
 	return status;
 }
 
@@ -5003,7 +5072,7 @@ static __be32 nfs4_preprocess_confirmed_
 		return status;
 	oo = openowner(stp->st_stateowner);
 	if (!(oo->oo_flags & NFS4_OO_CONFIRMED)) {
-		up_write(&stp->st_rwsem);
+		mutex_unlock(&stp->st_mutex);
 		nfs4_put_stid(&stp->st_stid);
 		return nfserr_bad_stateid;
 	}
@@ -5035,12 +5104,12 @@ nfsd4_open_confirm(struct svc_rqst *rqst
 	oo = openowner(stp->st_stateowner);
 	status = nfserr_bad_stateid;
 	if (oo->oo_flags & NFS4_OO_CONFIRMED) {
-		up_write(&stp->st_rwsem);
+		mutex_unlock(&stp->st_mutex);
 		goto put_stateid;
 	}
 	oo->oo_flags |= NFS4_OO_CONFIRMED;
 	nfs4_inc_and_copy_stateid(&oc->oc_resp_stateid, &stp->st_stid);
-	up_write(&stp->st_rwsem);
+	mutex_unlock(&stp->st_mutex);
 	dprintk("NFSD: %s: success, seqid=%d stateid=" STATEID_FMT "\n",
 		__func__, oc->oc_seqid, STATEID_VAL(&stp->st_stid.sc_stateid));
 
@@ -5116,7 +5185,7 @@ nfsd4_open_downgrade(struct svc_rqst *rq
 	nfs4_inc_and_copy_stateid(&od->od_stateid, &stp->st_stid);
 	status = nfs_ok;
 put_stateid:
-	up_write(&stp->st_rwsem);
+	mutex_unlock(&stp->st_mutex);
 	nfs4_put_stid(&stp->st_stid);
 out:
 	nfsd4_bump_seqid(cstate, status);
@@ -5129,7 +5198,6 @@ static void nfsd4_close_open_stateid(str
 	bool unhashed;
 	LIST_HEAD(reaplist);
 
-	s->st_stid.sc_type = NFS4_CLOSED_STID;
 	spin_lock(&clp->cl_lock);
 	unhashed = unhash_open_stateid(s, &reaplist);
 
@@ -5168,10 +5236,12 @@ nfsd4_close(struct svc_rqst *rqstp, stru
 	nfsd4_bump_seqid(cstate, status);
 	if (status)
 		goto out; 
+
+	stp->st_stid.sc_type = NFS4_CLOSED_STID;
 	nfs4_inc_and_copy_stateid(&close->cl_stateid, &stp->st_stid);
-	up_write(&stp->st_rwsem);
 
 	nfsd4_close_open_stateid(stp);
+	mutex_unlock(&stp->st_mutex);
 
 	/* put reference from nfs4_preprocess_seqid_op */
 	nfs4_put_stid(&stp->st_stid);
@@ -5391,11 +5461,10 @@ init_lock_stateid(struct nfs4_ol_stateid
 	stp->st_stateowner = nfs4_get_stateowner(&lo->lo_owner);
 	get_nfs4_file(fp);
 	stp->st_stid.sc_file = fp;
-	stp->st_stid.sc_free = nfs4_free_lock_stateid;
 	stp->st_access_bmap = 0;
 	stp->st_deny_bmap = open_stp->st_deny_bmap;
 	stp->st_openstp = open_stp;
-	init_rwsem(&stp->st_rwsem);
+	mutex_init(&stp->st_mutex);
 	list_add(&stp->st_locks, &open_stp->st_locks);
 	list_add(&stp->st_perstateowner, &lo->lo_owner.so_stateids);
 	spin_lock(&fp->fi_lock);
@@ -5434,7 +5503,7 @@ find_or_create_lock_stateid(struct nfs4_
 	lst = find_lock_stateid(lo, fi);
 	if (lst == NULL) {
 		spin_unlock(&clp->cl_lock);
-		ns = nfs4_alloc_stid(clp, stateid_slab);
+		ns = nfs4_alloc_stid(clp, stateid_slab, nfs4_free_lock_stateid);
 		if (ns == NULL)
 			return NULL;
 
@@ -5476,7 +5545,7 @@ static __be32
 lookup_or_create_lock_state(struct nfsd4_compound_state *cstate,
 			    struct nfs4_ol_stateid *ost,
 			    struct nfsd4_lock *lock,
-			    struct nfs4_ol_stateid **lst, bool *new)
+			    struct nfs4_ol_stateid **plst, bool *new)
 {
 	__be32 status;
 	struct nfs4_file *fi = ost->st_stid.sc_file;
@@ -5484,7 +5553,9 @@ lookup_or_create_lock_state(struct nfsd4
 	struct nfs4_client *cl = oo->oo_owner.so_client;
 	struct inode *inode = d_inode(cstate->current_fh.fh_dentry);
 	struct nfs4_lockowner *lo;
+	struct nfs4_ol_stateid *lst;
 	unsigned int strhashval;
+	bool hashed;
 
 	lo = find_lockowner_str(cl, &lock->lk_new_owner);
 	if (!lo) {
@@ -5500,12 +5571,27 @@ lookup_or_create_lock_state(struct nfsd4
 			goto out;
 	}
 
-	*lst = find_or_create_lock_stateid(lo, fi, inode, ost, new);
-	if (*lst == NULL) {
+retry:
+	lst = find_or_create_lock_stateid(lo, fi, inode, ost, new);
+	if (lst == NULL) {
 		status = nfserr_jukebox;
 		goto out;
 	}
+
+	mutex_lock(&lst->st_mutex);
+
+	/* See if it's still hashed to avoid race with FREE_STATEID */
+	spin_lock(&cl->cl_lock);
+	hashed = !list_empty(&lst->st_perfile);
+	spin_unlock(&cl->cl_lock);
+
+	if (!hashed) {
+		mutex_unlock(&lst->st_mutex);
+		nfs4_put_stid(&lst->st_stid);
+		goto retry;
+	}
 	status = nfs_ok;
+	*plst = lst;
 out:
 	nfs4_put_stateowner(&lo->lo_owner);
 	return status;
@@ -5564,7 +5650,7 @@ nfsd4_lock(struct svc_rqst *rqstp, struc
 					&open_stp, nn);
 		if (status)
 			goto out;
-		up_write(&open_stp->st_rwsem);
+		mutex_unlock(&open_stp->st_mutex);
 		open_sop = openowner(open_stp->st_stateowner);
 		status = nfserr_bad_stateid;
 		if (!same_clid(&open_sop->oo_owner.so_client->cl_clientid,
@@ -5572,8 +5658,6 @@ nfsd4_lock(struct svc_rqst *rqstp, struc
 			goto out;
 		status = lookup_or_create_lock_state(cstate, open_stp, lock,
 							&lock_stp, &new);
-		if (status == nfs_ok)
-			down_write(&lock_stp->st_rwsem);
 	} else {
 		status = nfs4_preprocess_seqid_op(cstate,
 				       lock->lk_old_lock_seqid,
@@ -5677,7 +5761,7 @@ out:
 		    seqid_mutating_err(ntohl(status)))
 			lock_sop->lo_owner.so_seqid++;
 
-		up_write(&lock_stp->st_rwsem);
+		mutex_unlock(&lock_stp->st_mutex);
 
 		/*
 		 * If this is a new, never-before-used stateid, and we are
@@ -5847,7 +5931,7 @@ nfsd4_locku(struct svc_rqst *rqstp, stru
 fput:
 	fput(filp);
 put_stateid:
-	up_write(&stp->st_rwsem);
+	mutex_unlock(&stp->st_mutex);
 	nfs4_put_stid(&stp->st_stid);
 out:
 	nfsd4_bump_seqid(cstate, status);
@@ -5911,6 +5995,7 @@ nfsd4_release_lockowner(struct svc_rqst
 	__be32 status;
 	struct nfsd_net *nn = net_generic(SVC_NET(rqstp), nfsd_net_id);
 	struct nfs4_client *clp;
+	LIST_HEAD (reaplist);
 
 	dprintk("nfsd4_release_lockowner clientid: (%08x/%08x):\n",
 		clid->cl_boot, clid->cl_id);
@@ -5941,9 +6026,23 @@ nfsd4_release_lockowner(struct svc_rqst
 		nfs4_get_stateowner(sop);
 		break;
 	}
+	if (!lo) {
+		spin_unlock(&clp->cl_lock);
+		return status;
+	}
+
+	unhash_lockowner_locked(lo);
+	while (!list_empty(&lo->lo_owner.so_stateids)) {
+		stp = list_first_entry(&lo->lo_owner.so_stateids,
+				       struct nfs4_ol_stateid,
+				       st_perstateowner);
+		WARN_ON(!unhash_lock_stateid(stp));
+		put_ol_stateid_locked(stp, &reaplist);
+	}
 	spin_unlock(&clp->cl_lock);
-	if (lo)
-		release_lockowner(lo);
+	free_ol_stateid_reaplist(&reaplist);
+	nfs4_put_stateowner(&lo->lo_owner);
+
 	return status;
 }
 
@@ -6762,23 +6861,24 @@ nfs4_state_start(void)
 
 	ret = set_callback_cred();
 	if (ret)
-		return -ENOMEM;
+		return ret;
+
 	laundry_wq = alloc_workqueue("%s", WQ_UNBOUND, 0, "nfsd4");
 	if (laundry_wq == NULL) {
 		ret = -ENOMEM;
-		goto out_recovery;
+		goto out_cleanup_cred;
 	}
 	ret = nfsd4_create_callback_queue();
 	if (ret)
 		goto out_free_laundry;
 
 	set_max_delegations();
-
 	return 0;
 
 out_free_laundry:
 	destroy_workqueue(laundry_wq);
-out_recovery:
+out_cleanup_cred:
+	cleanup_callback_cred();
 	return ret;
 }
 
@@ -6817,6 +6917,7 @@ nfs4_state_shutdown(void)
 {
 	destroy_workqueue(laundry_wq);
 	nfsd4_destroy_callback_queue();
+	cleanup_callback_cred();
 }
 
 static void
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/nfsd/nfs4xdr.c linux-libre-4.4.107-gnu/fs/nfsd/nfs4xdr.c
--- linux-libre-4.4-gnu/fs/nfsd/nfs4xdr.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/nfsd/nfs4xdr.c	2017-12-20 04:05:01.000000000 -0500
@@ -129,7 +129,7 @@ static void next_decode_page(struct nfsd
 	argp->p = page_address(argp->pagelist[0]);
 	argp->pagelist++;
 	if (argp->pagelen < PAGE_SIZE) {
-		argp->end = argp->p + (argp->pagelen>>2);
+		argp->end = argp->p + XDR_QUADLEN(argp->pagelen);
 		argp->pagelen = 0;
 	} else {
 		argp->end = argp->p + (PAGE_SIZE>>2);
@@ -1072,8 +1072,9 @@ nfsd4_decode_rename(struct nfsd4_compoun
 
 	READ_BUF(4);
 	rename->rn_snamelen = be32_to_cpup(p++);
-	READ_BUF(rename->rn_snamelen + 4);
+	READ_BUF(rename->rn_snamelen);
 	SAVEMEM(rename->rn_sname, rename->rn_snamelen);
+	READ_BUF(4);
 	rename->rn_tnamelen = be32_to_cpup(p++);
 	READ_BUF(rename->rn_tnamelen);
 	SAVEMEM(rename->rn_tname, rename->rn_tnamelen);
@@ -1155,13 +1156,14 @@ nfsd4_decode_setclientid(struct nfsd4_co
 	READ_BUF(8);
 	setclientid->se_callback_prog = be32_to_cpup(p++);
 	setclientid->se_callback_netid_len = be32_to_cpup(p++);
-
-	READ_BUF(setclientid->se_callback_netid_len + 4);
+	READ_BUF(setclientid->se_callback_netid_len);
 	SAVEMEM(setclientid->se_callback_netid_val, setclientid->se_callback_netid_len);
+	READ_BUF(4);
 	setclientid->se_callback_addr_len = be32_to_cpup(p++);
 
-	READ_BUF(setclientid->se_callback_addr_len + 4);
+	READ_BUF(setclientid->se_callback_addr_len);
 	SAVEMEM(setclientid->se_callback_addr_val, setclientid->se_callback_addr_len);
+	READ_BUF(4);
 	setclientid->se_callback_ident = be32_to_cpup(p++);
 
 	DECODE_TAIL;
@@ -1244,9 +1246,7 @@ nfsd4_decode_write(struct nfsd4_compound
 		argp->pagelen -= pages * PAGE_SIZE;
 		len -= pages * PAGE_SIZE;
 
-		argp->p = (__be32 *)page_address(argp->pagelist[0]);
-		argp->pagelist++;
-		argp->end = argp->p + XDR_QUADLEN(PAGE_SIZE);
+		next_decode_page(argp);
 	}
 	argp->p += XDR_QUADLEN(len);
 
@@ -1815,8 +1815,9 @@ nfsd4_decode_compound(struct nfsd4_compo
 
 	READ_BUF(4);
 	argp->taglen = be32_to_cpup(p++);
-	READ_BUF(argp->taglen + 8);
+	READ_BUF(argp->taglen);
 	SAVEMEM(argp->tag, argp->taglen);
+	READ_BUF(8);
 	argp->minorversion = be32_to_cpup(p++);
 	argp->opcnt = be32_to_cpup(p++);
 	max_reply += 4 + (XDR_QUADLEN(argp->taglen) << 2);
@@ -2750,9 +2751,16 @@ out_acl:
 	}
 #endif /* CONFIG_NFSD_PNFS */
 	if (bmval2 & FATTR4_WORD2_SUPPATTR_EXCLCREAT) {
-		status = nfsd4_encode_bitmap(xdr, NFSD_SUPPATTR_EXCLCREAT_WORD0,
-						  NFSD_SUPPATTR_EXCLCREAT_WORD1,
-						  NFSD_SUPPATTR_EXCLCREAT_WORD2);
+		u32 supp[3];
+
+		supp[0] = nfsd_suppattrs0(minorversion);
+		supp[1] = nfsd_suppattrs1(minorversion);
+		supp[2] = nfsd_suppattrs2(minorversion);
+		supp[0] &= NFSD_SUPPATTR_EXCLCREAT_WORD0;
+		supp[1] &= NFSD_SUPPATTR_EXCLCREAT_WORD1;
+		supp[2] &= NFSD_SUPPATTR_EXCLCREAT_WORD2;
+
+		status = nfsd4_encode_bitmap(xdr, supp[0], supp[1], supp[2]);
 		if (status)
 			goto out;
 	}
@@ -4038,8 +4046,7 @@ nfsd4_encode_getdeviceinfo(struct nfsd4_
 		struct nfsd4_getdeviceinfo *gdev)
 {
 	struct xdr_stream *xdr = &resp->xdr;
-	const struct nfsd4_layout_ops *ops =
-		nfsd4_layout_ops[gdev->gd_layout_type];
+	const struct nfsd4_layout_ops *ops;
 	u32 starting_len = xdr->buf->len, needed_len;
 	__be32 *p;
 
@@ -4056,6 +4063,7 @@ nfsd4_encode_getdeviceinfo(struct nfsd4_
 
 	/* If maxcount is 0 then just update notifications */
 	if (gdev->gd_maxcount != 0) {
+		ops = nfsd4_layout_ops[gdev->gd_layout_type];
 		nfserr = ops->encode_getdeviceinfo(xdr, gdev);
 		if (nfserr) {
 			/*
@@ -4108,8 +4116,7 @@ nfsd4_encode_layoutget(struct nfsd4_comp
 		struct nfsd4_layoutget *lgp)
 {
 	struct xdr_stream *xdr = &resp->xdr;
-	const struct nfsd4_layout_ops *ops =
-		nfsd4_layout_ops[lgp->lg_layout_type];
+	const struct nfsd4_layout_ops *ops;
 	__be32 *p;
 
 	dprintk("%s: err %d\n", __func__, nfserr);
@@ -4132,6 +4139,7 @@ nfsd4_encode_layoutget(struct nfsd4_comp
 	*p++ = cpu_to_be32(lgp->lg_seg.iomode);
 	*p++ = cpu_to_be32(lgp->lg_layout_type);
 
+	ops = nfsd4_layout_ops[lgp->lg_layout_type];
 	nfserr = ops->encode_layoutget(xdr, lgp);
 out:
 	kfree(lgp->lg_content);
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/nfsd/nfssvc.c linux-libre-4.4.107-gnu/fs/nfsd/nfssvc.c
--- linux-libre-4.4-gnu/fs/nfsd/nfssvc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/nfsd/nfssvc.c	2017-12-20 04:05:01.000000000 -0500
@@ -151,7 +151,8 @@ int nfsd_vers(int vers, enum vers_op cha
 
 int nfsd_minorversion(u32 minorversion, enum vers_op change)
 {
-	if (minorversion > NFSD_SUPPORTED_MINOR_VERSION)
+	if (minorversion > NFSD_SUPPORTED_MINOR_VERSION &&
+	    change != NFSD_AVAIL)
 		return -1;
 	switch(change) {
 	case NFSD_SET:
@@ -329,23 +330,20 @@ static void nfsd_last_thread(struct svc_
 
 void nfsd_reset_versions(void)
 {
-	int found_one = 0;
 	int i;
 
-	for (i = NFSD_MINVERS; i < NFSD_NRVERS; i++) {
-		if (nfsd_program.pg_vers[i])
-			found_one = 1;
-	}
+	for (i = 0; i < NFSD_NRVERS; i++)
+		if (nfsd_vers(i, NFSD_TEST))
+			return;
 
-	if (!found_one) {
-		for (i = NFSD_MINVERS; i < NFSD_NRVERS; i++)
-			nfsd_program.pg_vers[i] = nfsd_version[i];
-#if defined(CONFIG_NFSD_V2_ACL) || defined(CONFIG_NFSD_V3_ACL)
-		for (i = NFSD_ACL_MINVERS; i < NFSD_ACL_NRVERS; i++)
-			nfsd_acl_program.pg_vers[i] =
-				nfsd_acl_version[i];
-#endif
-	}
+	for (i = 0; i < NFSD_NRVERS; i++)
+		if (i != 4)
+			nfsd_vers(i, NFSD_SET);
+		else {
+			int minor = 0;
+			while (nfsd_minorversion(minor, NFSD_SET) >= 0)
+				minor++;
+		}
 }
 
 /*
@@ -656,6 +654,37 @@ static __be32 map_new_errors(u32 vers, _
 	return nfserr;
 }
 
+/*
+ * A write procedure can have a large argument, and a read procedure can
+ * have a large reply, but no NFSv2 or NFSv3 procedure has argument and
+ * reply that can both be larger than a page.  The xdr code has taken
+ * advantage of this assumption to be a sloppy about bounds checking in
+ * some cases.  Pending a rewrite of the NFSv2/v3 xdr code to fix that
+ * problem, we enforce these assumptions here:
+ */
+static bool nfs_request_too_big(struct svc_rqst *rqstp,
+				struct svc_procedure *proc)
+{
+	/*
+	 * The ACL code has more careful bounds-checking and is not
+	 * susceptible to this problem:
+	 */
+	if (rqstp->rq_prog != NFS_PROGRAM)
+		return false;
+	/*
+	 * Ditto NFSv4 (which can in theory have argument and reply both
+	 * more than a page):
+	 */
+	if (rqstp->rq_vers >= 4)
+		return false;
+	/* The reply will be small, we're OK: */
+	if (proc->pc_xdrressize > 0 &&
+	    proc->pc_xdrressize < XDR_QUADLEN(PAGE_SIZE))
+		return false;
+
+	return rqstp->rq_arg.len > PAGE_SIZE;
+}
+
 int
 nfsd_dispatch(struct svc_rqst *rqstp, __be32 *statp)
 {
@@ -668,6 +697,11 @@ nfsd_dispatch(struct svc_rqst *rqstp, __
 				rqstp->rq_vers, rqstp->rq_proc);
 	proc = rqstp->rq_procinfo;
 
+	if (nfs_request_too_big(rqstp, proc)) {
+		dprintk("nfsd: NFSv%d argument too large\n", rqstp->rq_vers);
+		*statp = rpc_garbage_args;
+		return 1;
+	}
 	/*
 	 * Give the xdr decoder a chance to change this if it wants
 	 * (necessary in the NFSv4.0 compound case)
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/nfsd/nfsxdr.c linux-libre-4.4.107-gnu/fs/nfsd/nfsxdr.c
--- linux-libre-4.4-gnu/fs/nfsd/nfsxdr.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/nfsd/nfsxdr.c	2017-12-20 04:05:01.000000000 -0500
@@ -280,6 +280,7 @@ nfssvc_decode_writeargs(struct svc_rqst
 					struct nfsd_writeargs *args)
 {
 	unsigned int len, hdr, dlen;
+	struct kvec *head = rqstp->rq_arg.head;
 	int v;
 
 	p = decode_fh(p, &args->fh);
@@ -300,9 +301,10 @@ nfssvc_decode_writeargs(struct svc_rqst
 	 * Check to make sure that we got the right number of
 	 * bytes.
 	 */
-	hdr = (void*)p - rqstp->rq_arg.head[0].iov_base;
-	dlen = rqstp->rq_arg.head[0].iov_len + rqstp->rq_arg.page_len
-		- hdr;
+	hdr = (void*)p - head->iov_base;
+	if (hdr > head->iov_len)
+		return 0;
+	dlen = head->iov_len + rqstp->rq_arg.page_len - hdr;
 
 	/*
 	 * Round the length of the data which was specified up to
@@ -316,7 +318,7 @@ nfssvc_decode_writeargs(struct svc_rqst
 		return 0;
 
 	rqstp->rq_vec[0].iov_base = (void*)p;
-	rqstp->rq_vec[0].iov_len = rqstp->rq_arg.head[0].iov_len - hdr;
+	rqstp->rq_vec[0].iov_len = head->iov_len - hdr;
 	v = 0;
 	while (len > rqstp->rq_vec[v].iov_len) {
 		len -= rqstp->rq_vec[v].iov_len;
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/nfsd/state.h linux-libre-4.4.107-gnu/fs/nfsd/state.h
--- linux-libre-4.4-gnu/fs/nfsd/state.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/nfsd/state.h	2017-12-20 04:05:01.000000000 -0500
@@ -535,7 +535,7 @@ struct nfs4_ol_stateid {
 	unsigned char			st_access_bmap;
 	unsigned char			st_deny_bmap;
 	struct nfs4_ol_stateid		*st_openstp;
-	struct rw_semaphore		st_rwsem;
+	struct mutex			st_mutex;
 };
 
 static inline struct nfs4_ol_stateid *openlockstateid(struct nfs4_stid *s)
@@ -583,8 +583,8 @@ extern __be32 nfs4_preprocess_stateid_op
 __be32 nfsd4_lookup_stateid(struct nfsd4_compound_state *cstate,
 		     stateid_t *stateid, unsigned char typemask,
 		     struct nfs4_stid **s, struct nfsd_net *nn);
-struct nfs4_stid *nfs4_alloc_stid(struct nfs4_client *cl,
-		struct kmem_cache *slab);
+struct nfs4_stid *nfs4_alloc_stid(struct nfs4_client *cl, struct kmem_cache *slab,
+				  void (*sc_free)(struct nfs4_stid *));
 void nfs4_unhash_stid(struct nfs4_stid *s);
 void nfs4_put_stid(struct nfs4_stid *s);
 void nfs4_inc_and_copy_stateid(stateid_t *dst, struct nfs4_stid *stid);
@@ -595,6 +595,7 @@ extern struct nfs4_client_reclaim *nfsd4
 extern __be32 nfs4_check_open_reclaim(clientid_t *clid,
 		struct nfsd4_compound_state *cstate, struct nfsd_net *nn);
 extern int set_callback_cred(void);
+extern void cleanup_callback_cred(void);
 extern void nfsd4_probe_callback(struct nfs4_client *clp);
 extern void nfsd4_probe_callback_sync(struct nfs4_client *clp);
 extern void nfsd4_change_callback(struct nfs4_client *clp, struct nfs4_cb_conn *);
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/nfsd/vfs.c linux-libre-4.4.107-gnu/fs/nfsd/vfs.c
--- linux-libre-4.4-gnu/fs/nfsd/vfs.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/nfsd/vfs.c	2017-12-20 04:05:01.000000000 -0500
@@ -369,7 +369,7 @@ nfsd_setattr(struct svc_rqst *rqstp, str
 	__be32		err;
 	int		host_err;
 	bool		get_write_count;
-	int		size_change = 0;
+	bool		size_change = (iap->ia_valid & ATTR_SIZE);
 
 	if (iap->ia_valid & (ATTR_ATIME | ATTR_MTIME | ATTR_SIZE))
 		accmode |= NFSD_MAY_WRITE|NFSD_MAY_OWNER_OVERRIDE;
@@ -382,11 +382,11 @@ nfsd_setattr(struct svc_rqst *rqstp, str
 	/* Get inode */
 	err = fh_verify(rqstp, fhp, ftype, accmode);
 	if (err)
-		goto out;
+		return err;
 	if (get_write_count) {
 		host_err = fh_want_write(fhp);
 		if (host_err)
-			return nfserrno(host_err);
+			goto out;
 	}
 
 	dentry = fhp->fh_dentry;
@@ -397,20 +397,28 @@ nfsd_setattr(struct svc_rqst *rqstp, str
 		iap->ia_valid &= ~ATTR_MODE;
 
 	if (!iap->ia_valid)
-		goto out;
+		return 0;
 
 	nfsd_sanitize_attrs(inode, iap);
 
+	if (check_guard && guardtime != inode->i_ctime.tv_sec)
+		return nfserr_notsync;
+
 	/*
 	 * The size case is special, it changes the file in addition to the
-	 * attributes.
+	 * attributes, and file systems don't expect it to be mixed with
+	 * "random" attribute changes.  We thus split out the size change
+	 * into a separate call to ->setattr, and do the rest as a separate
+	 * setattr call.
 	 */
-	if (iap->ia_valid & ATTR_SIZE) {
+	if (size_change) {
 		err = nfsd_get_write_access(rqstp, fhp, iap);
 		if (err)
-			goto out;
-		size_change = 1;
+			return err;
+	}
 
+	fh_lock(fhp);
+	if (size_change) {
 		/*
 		 * RFC5661, Section 18.30.4:
 		 *   Changing the size of a file with SETATTR indirectly
@@ -418,29 +426,36 @@ nfsd_setattr(struct svc_rqst *rqstp, str
 		 *
 		 * (and similar for the older RFCs)
 		 */
-		if (iap->ia_size != i_size_read(inode))
-			iap->ia_valid |= ATTR_MTIME;
-	}
+		struct iattr size_attr = {
+			.ia_valid	= ATTR_SIZE | ATTR_CTIME | ATTR_MTIME,
+			.ia_size	= iap->ia_size,
+		};
 
-	iap->ia_valid |= ATTR_CTIME;
+		host_err = notify_change(dentry, &size_attr, NULL);
+		if (host_err)
+			goto out_unlock;
+		iap->ia_valid &= ~ATTR_SIZE;
 
-	if (check_guard && guardtime != inode->i_ctime.tv_sec) {
-		err = nfserr_notsync;
-		goto out_put_write_access;
+		/*
+		 * Avoid the additional setattr call below if the only other
+		 * attribute that the client sends is the mtime, as we update
+		 * it as part of the size change above.
+		 */
+		if ((iap->ia_valid & ~ATTR_MTIME) == 0)
+			goto out_unlock;
 	}
 
-	fh_lock(fhp);
+	iap->ia_valid |= ATTR_CTIME;
 	host_err = notify_change(dentry, iap, NULL);
-	fh_unlock(fhp);
-	err = nfserrno(host_err);
 
-out_put_write_access:
+out_unlock:
+	fh_unlock(fhp);
 	if (size_change)
 		put_write_access(inode);
-	if (!err)
-		err = nfserrno(commit_metadata(fhp));
 out:
-	return err;
+	if (!host_err)
+		host_err = commit_metadata(fhp);
+	return nfserrno(host_err);
 }
 
 #if defined(CONFIG_NFSD_V4)
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/nilfs2/btnode.c linux-libre-4.4.107-gnu/fs/nilfs2/btnode.c
--- linux-libre-4.4-gnu/fs/nilfs2/btnode.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/nilfs2/btnode.c	2017-12-20 04:05:01.000000000 -0500
@@ -55,7 +55,7 @@ nilfs_btnode_create_block(struct address
 		brelse(bh);
 		BUG();
 	}
-	memset(bh->b_data, 0, 1 << inode->i_blkbits);
+	memset(bh->b_data, 0, i_blocksize(inode));
 	bh->b_bdev = inode->i_sb->s_bdev;
 	bh->b_blocknr = blocknr;
 	set_buffer_mapped(bh);
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/nilfs2/inode.c linux-libre-4.4.107-gnu/fs/nilfs2/inode.c
--- linux-libre-4.4-gnu/fs/nilfs2/inode.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/nilfs2/inode.c	2017-12-20 04:05:01.000000000 -0500
@@ -55,7 +55,7 @@ void nilfs_inode_add_blocks(struct inode
 {
 	struct nilfs_root *root = NILFS_I(inode)->i_root;
 
-	inode_add_bytes(inode, (1 << inode->i_blkbits) * n);
+	inode_add_bytes(inode, i_blocksize(inode) * n);
 	if (root)
 		atomic64_add(n, &root->blocks_count);
 }
@@ -64,7 +64,7 @@ void nilfs_inode_sub_blocks(struct inode
 {
 	struct nilfs_root *root = NILFS_I(inode)->i_root;
 
-	inode_sub_bytes(inode, (1 << inode->i_blkbits) * n);
+	inode_sub_bytes(inode, i_blocksize(inode) * n);
 	if (root)
 		atomic64_sub(n, &root->blocks_count);
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/nilfs2/mdt.c linux-libre-4.4.107-gnu/fs/nilfs2/mdt.c
--- linux-libre-4.4-gnu/fs/nilfs2/mdt.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/nilfs2/mdt.c	2017-12-20 04:05:01.000000000 -0500
@@ -60,7 +60,7 @@ nilfs_mdt_insert_new_block(struct inode
 	set_buffer_mapped(bh);
 
 	kaddr = kmap_atomic(bh->b_page);
-	memset(kaddr + bh_offset(bh), 0, 1 << inode->i_blkbits);
+	memset(kaddr + bh_offset(bh), 0, i_blocksize(inode));
 	if (init_block)
 		init_block(inode, bh, kaddr);
 	flush_dcache_page(bh->b_page);
@@ -503,7 +503,7 @@ void nilfs_mdt_set_entry_size(struct ino
 	struct nilfs_mdt_info *mi = NILFS_MDT(inode);
 
 	mi->mi_entry_size = entry_size;
-	mi->mi_entries_per_block = (1 << inode->i_blkbits) / entry_size;
+	mi->mi_entries_per_block = i_blocksize(inode) / entry_size;
 	mi->mi_first_entry_offset = DIV_ROUND_UP(header_size, entry_size);
 }
 
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/nilfs2/segment.c linux-libre-4.4.107-gnu/fs/nilfs2/segment.c
--- linux-libre-4.4-gnu/fs/nilfs2/segment.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/nilfs2/segment.c	2017-12-20 04:05:01.000000000 -0500
@@ -719,7 +719,7 @@ static size_t nilfs_lookup_dirty_data_bu
 
 		lock_page(page);
 		if (!page_has_buffers(page))
-			create_empty_buffers(page, 1 << inode->i_blkbits, 0);
+			create_empty_buffers(page, i_blocksize(inode), 0);
 		unlock_page(page);
 
 		bh = head = page_buffers(page);
@@ -1945,8 +1945,6 @@ static int nilfs_segctor_collect_dirty_f
 					      "failed to get inode block.\n");
 				return err;
 			}
-			mark_buffer_dirty(ibh);
-			nilfs_mdt_mark_dirty(ifile);
 			spin_lock(&nilfs->ns_inode_lock);
 			if (likely(!ii->i_bh))
 				ii->i_bh = ibh;
@@ -1955,6 +1953,10 @@ static int nilfs_segctor_collect_dirty_f
 			goto retry;
 		}
 
+		// Always redirty the buffer to avoid race condition
+		mark_buffer_dirty(ii->i_bh);
+		nilfs_mdt_mark_dirty(ifile);
+
 		clear_bit(NILFS_I_QUEUED, &ii->i_state);
 		set_bit(NILFS_I_BUSY, &ii->i_state);
 		list_move_tail(&ii->i_dirty, &sci->sc_dirty_files);
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/nilfs2/the_nilfs.c linux-libre-4.4.107-gnu/fs/nilfs2/the_nilfs.c
--- linux-libre-4.4-gnu/fs/nilfs2/the_nilfs.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/nilfs2/the_nilfs.c	2017-12-20 04:05:01.000000000 -0500
@@ -443,7 +443,7 @@ static int nilfs_valid_sb(struct nilfs_s
 	if (!sbp || le16_to_cpu(sbp->s_magic) != NILFS_SUPER_MAGIC)
 		return 0;
 	bytes = le16_to_cpu(sbp->s_bytes);
-	if (bytes > BLOCK_SIZE)
+	if (bytes < sumoff + 4 || bytes > BLOCK_SIZE)
 		return 0;
 	crc = crc32_le(le32_to_cpu(sbp->s_crc_seed), (unsigned char *)sbp,
 		       sumoff);
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/notify/fanotify/fanotify.c linux-libre-4.4.107-gnu/fs/notify/fanotify/fanotify.c
--- linux-libre-4.4-gnu/fs/notify/fanotify/fanotify.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/notify/fanotify/fanotify.c	2017-12-20 04:05:01.000000000 -0500
@@ -67,18 +67,7 @@ static int fanotify_get_response(struct
 
 	pr_debug("%s: group=%p event=%p\n", __func__, group, event);
 
-	wait_event(group->fanotify_data.access_waitq, event->response ||
-				atomic_read(&group->fanotify_data.bypass_perm));
-
-	if (!event->response) {	/* bypass_perm set */
-		/*
-		 * Event was canceled because group is being destroyed. Remove
-		 * it from group's event list because we are responsible for
-		 * freeing the permission event.
-		 */
-		fsnotify_remove_event(group, &event->fae.fse);
-		return 0;
-	}
+	wait_event(group->fanotify_data.access_waitq, event->response);
 
 	/* userspace responded, convert to something usable */
 	switch (event->response) {
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/notify/fanotify/fanotify_user.c linux-libre-4.4.107-gnu/fs/notify/fanotify/fanotify_user.c
--- linux-libre-4.4-gnu/fs/notify/fanotify/fanotify_user.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/notify/fanotify/fanotify_user.c	2017-12-20 04:05:01.000000000 -0500
@@ -358,16 +358,20 @@ static int fanotify_release(struct inode
 
 #ifdef CONFIG_FANOTIFY_ACCESS_PERMISSIONS
 	struct fanotify_perm_event_info *event, *next;
+	struct fsnotify_event *fsn_event;
 
 	/*
-	 * There may be still new events arriving in the notification queue
-	 * but since userspace cannot use fanotify fd anymore, no event can
-	 * enter or leave access_list by now.
+	 * Stop new events from arriving in the notification queue. since
+	 * userspace cannot use fanotify fd anymore, no event can enter or
+	 * leave access_list by now either.
 	 */
-	spin_lock(&group->fanotify_data.access_lock);
-
-	atomic_inc(&group->fanotify_data.bypass_perm);
+	fsnotify_group_stop_queueing(group);
 
+	/*
+	 * Process all permission events on access_list and notification queue
+	 * and simulate reply from userspace.
+	 */
+	spin_lock(&group->fanotify_data.access_lock);
 	list_for_each_entry_safe(event, next, &group->fanotify_data.access_list,
 				 fae.fse.list) {
 		pr_debug("%s: found group=%p event=%p\n", __func__, group,
@@ -379,12 +383,21 @@ static int fanotify_release(struct inode
 	spin_unlock(&group->fanotify_data.access_lock);
 
 	/*
-	 * Since bypass_perm is set, newly queued events will not wait for
-	 * access response. Wake up the already sleeping ones now.
-	 * synchronize_srcu() in fsnotify_destroy_group() will wait for all
-	 * processes sleeping in fanotify_handle_event() waiting for access
-	 * response and thus also for all permission events to be freed.
+	 * Destroy all non-permission events. For permission events just
+	 * dequeue them and set the response. They will be freed once the
+	 * response is consumed and fanotify_get_response() returns.
 	 */
+	mutex_lock(&group->notification_mutex);
+	while (!fsnotify_notify_queue_is_empty(group)) {
+		fsn_event = fsnotify_remove_first_event(group);
+		if (!(fsn_event->mask & FAN_ALL_PERM_EVENTS))
+			fsnotify_destroy_event(group, fsn_event);
+		else
+			FANOTIFY_PE(fsn_event)->response = FAN_ALLOW;
+	}
+	mutex_unlock(&group->notification_mutex);
+
+	/* Response for all permission events it set, wakeup waiters */
 	wake_up(&group->fanotify_data.access_waitq);
 #endif
 
@@ -755,7 +768,6 @@ SYSCALL_DEFINE2(fanotify_init, unsigned
 	spin_lock_init(&group->fanotify_data.access_lock);
 	init_waitqueue_head(&group->fanotify_data.access_waitq);
 	INIT_LIST_HEAD(&group->fanotify_data.access_list);
-	atomic_set(&group->fanotify_data.bypass_perm, 0);
 #endif
 	switch (flags & FAN_ALL_CLASS_BITS) {
 	case FAN_CLASS_NOTIF:
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/notify/fsnotify.c linux-libre-4.4.107-gnu/fs/notify/fsnotify.c
--- linux-libre-4.4-gnu/fs/notify/fsnotify.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/notify/fsnotify.c	2017-12-20 04:05:01.000000000 -0500
@@ -104,16 +104,20 @@ int __fsnotify_parent(struct path *path,
 	if (unlikely(!fsnotify_inode_watches_children(p_inode)))
 		__fsnotify_update_child_dentry_flags(p_inode);
 	else if (p_inode->i_fsnotify_mask & mask) {
+		struct name_snapshot name;
+
 		/* we are notifying a parent so come up with the new mask which
 		 * specifies these are events which came from a child. */
 		mask |= FS_EVENT_ON_CHILD;
 
+		take_dentry_name_snapshot(&name, dentry);
 		if (path)
 			ret = fsnotify(p_inode, mask, path, FSNOTIFY_EVENT_PATH,
-				       dentry->d_name.name, 0);
+				       name.name, 0);
 		else
 			ret = fsnotify(p_inode, mask, dentry->d_inode, FSNOTIFY_EVENT_INODE,
-				       dentry->d_name.name, 0);
+				       name.name, 0);
+		release_dentry_name_snapshot(&name);
 	}
 
 	dput(parent);
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/notify/group.c linux-libre-4.4.107-gnu/fs/notify/group.c
--- linux-libre-4.4-gnu/fs/notify/group.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/notify/group.c	2017-12-20 04:05:01.000000000 -0500
@@ -40,6 +40,17 @@ static void fsnotify_final_destroy_group
 }
 
 /*
+ * Stop queueing new events for this group. Once this function returns
+ * fsnotify_add_event() will not add any new events to the group's queue.
+ */
+void fsnotify_group_stop_queueing(struct fsnotify_group *group)
+{
+	mutex_lock(&group->notification_mutex);
+	group->shutdown = true;
+	mutex_unlock(&group->notification_mutex);
+}
+
+/*
  * Trying to get rid of a group. Remove all marks, flush all events and release
  * the group reference.
  * Note that another thread calling fsnotify_clear_marks_by_group() may still
@@ -47,6 +58,14 @@ static void fsnotify_final_destroy_group
  */
 void fsnotify_destroy_group(struct fsnotify_group *group)
 {
+	/*
+	 * Stop queueing new events. The code below is careful enough to not
+	 * require this but fanotify needs to stop queuing events even before
+	 * fsnotify_destroy_group() is called and this makes the other callers
+	 * of fsnotify_destroy_group() to see the same behavior.
+	 */
+	fsnotify_group_stop_queueing(group);
+
 	/* clear all inode marks for this group */
 	fsnotify_clear_marks_by_group(group);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/notify/notification.c linux-libre-4.4.107-gnu/fs/notify/notification.c
--- linux-libre-4.4-gnu/fs/notify/notification.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/notify/notification.c	2017-12-20 04:05:01.000000000 -0500
@@ -82,7 +82,8 @@ void fsnotify_destroy_event(struct fsnot
  * Add an event to the group notification queue.  The group can later pull this
  * event off the queue to deal with.  The function returns 0 if the event was
  * added to the queue, 1 if the event was merged with some other queued event,
- * 2 if the queue of events has overflown.
+ * 2 if the event was not queued - either the queue of events has overflown
+ * or the group is shutting down.
  */
 int fsnotify_add_event(struct fsnotify_group *group,
 		       struct fsnotify_event *event,
@@ -96,6 +97,11 @@ int fsnotify_add_event(struct fsnotify_g
 
 	mutex_lock(&group->notification_mutex);
 
+	if (group->shutdown) {
+		mutex_unlock(&group->notification_mutex);
+		return 2;
+	}
+
 	if (group->q_len >= group->max_events) {
 		ret = 2;
 		/* Queue overflow event only if it isn't already queued */
@@ -126,21 +132,6 @@ queue:
 }
 
 /*
- * Remove @event from group's notification queue. It is the responsibility of
- * the caller to destroy the event.
- */
-void fsnotify_remove_event(struct fsnotify_group *group,
-			   struct fsnotify_event *event)
-{
-	mutex_lock(&group->notification_mutex);
-	if (!list_empty(&event->list)) {
-		list_del_init(&event->list);
-		group->q_len--;
-	}
-	mutex_unlock(&group->notification_mutex);
-}
-
-/*
  * Remove and return the first event from the notification list.  It is the
  * responsibility of the caller to destroy the obtained event
  */
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ocfs2/acl.c linux-libre-4.4.107-gnu/fs/ocfs2/acl.c
--- linux-libre-4.4-gnu/fs/ocfs2/acl.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/ocfs2/acl.c	2017-12-20 04:05:01.000000000 -0500
@@ -241,13 +241,11 @@ int ocfs2_set_acl(handle_t *handle,
 	case ACL_TYPE_ACCESS:
 		name_index = OCFS2_XATTR_INDEX_POSIX_ACL_ACCESS;
 		if (acl) {
-			umode_t mode = inode->i_mode;
-			ret = posix_acl_equiv_mode(acl, &mode);
-			if (ret < 0)
-				return ret;
+			umode_t mode;
 
-			if (ret == 0)
-				acl = NULL;
+			ret = posix_acl_update_mode(inode, &mode, &acl);
+			if (ret)
+				return ret;
 
 			ret = ocfs2_acl_set_mode(inode, di_bh,
 						 handle, mode);
@@ -322,3 +320,90 @@ struct posix_acl *ocfs2_iop_get_acl(stru
 	brelse(di_bh);
 	return acl;
 }
+
+int ocfs2_acl_chmod(struct inode *inode, struct buffer_head *bh)
+{
+	struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
+	struct posix_acl *acl;
+	int ret;
+
+	if (S_ISLNK(inode->i_mode))
+		return -EOPNOTSUPP;
+
+	if (!(osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL))
+		return 0;
+
+	acl = ocfs2_get_acl_nolock(inode, ACL_TYPE_ACCESS, bh);
+	if (IS_ERR(acl) || !acl)
+		return PTR_ERR(acl);
+	ret = __posix_acl_chmod(&acl, GFP_KERNEL, inode->i_mode);
+	if (ret)
+		return ret;
+	ret = ocfs2_set_acl(NULL, inode, NULL, ACL_TYPE_ACCESS,
+			    acl, NULL, NULL);
+	posix_acl_release(acl);
+	return ret;
+}
+
+/*
+ * Initialize the ACLs of a new inode. If parent directory has default ACL,
+ * then clone to new inode. Called from ocfs2_mknod.
+ */
+int ocfs2_init_acl(handle_t *handle,
+		   struct inode *inode,
+		   struct inode *dir,
+		   struct buffer_head *di_bh,
+		   struct buffer_head *dir_bh,
+		   struct ocfs2_alloc_context *meta_ac,
+		   struct ocfs2_alloc_context *data_ac)
+{
+	struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
+	struct posix_acl *acl = NULL;
+	int ret = 0, ret2;
+	umode_t mode;
+
+	if (!S_ISLNK(inode->i_mode)) {
+		if (osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL) {
+			acl = ocfs2_get_acl_nolock(dir, ACL_TYPE_DEFAULT,
+						   dir_bh);
+			if (IS_ERR(acl))
+				return PTR_ERR(acl);
+		}
+		if (!acl) {
+			mode = inode->i_mode & ~current_umask();
+			ret = ocfs2_acl_set_mode(inode, di_bh, handle, mode);
+			if (ret) {
+				mlog_errno(ret);
+				goto cleanup;
+			}
+		}
+	}
+	if ((osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL) && acl) {
+		if (S_ISDIR(inode->i_mode)) {
+			ret = ocfs2_set_acl(handle, inode, di_bh,
+					    ACL_TYPE_DEFAULT, acl,
+					    meta_ac, data_ac);
+			if (ret)
+				goto cleanup;
+		}
+		mode = inode->i_mode;
+		ret = __posix_acl_create(&acl, GFP_NOFS, &mode);
+		if (ret < 0)
+			return ret;
+
+		ret2 = ocfs2_acl_set_mode(inode, di_bh, handle, mode);
+		if (ret2) {
+			mlog_errno(ret2);
+			ret = ret2;
+			goto cleanup;
+		}
+		if (ret > 0) {
+			ret = ocfs2_set_acl(handle, inode,
+					    di_bh, ACL_TYPE_ACCESS,
+					    acl, meta_ac, data_ac);
+		}
+	}
+cleanup:
+	posix_acl_release(acl);
+	return ret;
+}
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ocfs2/acl.h linux-libre-4.4.107-gnu/fs/ocfs2/acl.h
--- linux-libre-4.4-gnu/fs/ocfs2/acl.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/ocfs2/acl.h	2017-12-20 04:05:01.000000000 -0500
@@ -35,5 +35,10 @@ int ocfs2_set_acl(handle_t *handle,
 			 struct posix_acl *acl,
 			 struct ocfs2_alloc_context *meta_ac,
 			 struct ocfs2_alloc_context *data_ac);
+extern int ocfs2_acl_chmod(struct inode *, struct buffer_head *);
+extern int ocfs2_init_acl(handle_t *, struct inode *, struct inode *,
+			  struct buffer_head *, struct buffer_head *,
+			  struct ocfs2_alloc_context *,
+			  struct ocfs2_alloc_context *);
 
 #endif /* OCFS2_ACL_H */
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ocfs2/alloc.c linux-libre-4.4.107-gnu/fs/ocfs2/alloc.c
--- linux-libre-4.4-gnu/fs/ocfs2/alloc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/ocfs2/alloc.c	2017-12-20 04:05:01.000000000 -0500
@@ -7270,13 +7270,24 @@ out:
 
 static int ocfs2_trim_extent(struct super_block *sb,
 			     struct ocfs2_group_desc *gd,
-			     u32 start, u32 count)
+			     u64 group, u32 start, u32 count)
 {
 	u64 discard, bcount;
+	struct ocfs2_super *osb = OCFS2_SB(sb);
 
 	bcount = ocfs2_clusters_to_blocks(sb, count);
-	discard = le64_to_cpu(gd->bg_blkno) +
-			ocfs2_clusters_to_blocks(sb, start);
+	discard = ocfs2_clusters_to_blocks(sb, start);
+
+	/*
+	 * For the first cluster group, the gd->bg_blkno is not at the start
+	 * of the group, but at an offset from the start. If we add it while
+	 * calculating discard for first group, we will wrongly start fstrim a
+	 * few blocks after the desried start block and the range can cross
+	 * over into the next cluster group. So, add it only if this is not
+	 * the first cluster group.
+	 */
+	if (group != osb->first_cluster_group_blkno)
+		discard += le64_to_cpu(gd->bg_blkno);
 
 	trace_ocfs2_trim_extent(sb, (unsigned long long)discard, bcount);
 
@@ -7284,7 +7295,7 @@ static int ocfs2_trim_extent(struct supe
 }
 
 static int ocfs2_trim_group(struct super_block *sb,
-			    struct ocfs2_group_desc *gd,
+			    struct ocfs2_group_desc *gd, u64 group,
 			    u32 start, u32 max, u32 minbits)
 {
 	int ret = 0, count = 0, next;
@@ -7303,7 +7314,7 @@ static int ocfs2_trim_group(struct super
 		next = ocfs2_find_next_bit(bitmap, max, start);
 
 		if ((next - start) >= minbits) {
-			ret = ocfs2_trim_extent(sb, gd,
+			ret = ocfs2_trim_extent(sb, gd, group,
 						start, next - start);
 			if (ret < 0) {
 				mlog_errno(ret);
@@ -7401,7 +7412,8 @@ int ocfs2_trim_fs(struct super_block *sb
 		}
 
 		gd = (struct ocfs2_group_desc *)gd_bh->b_data;
-		cnt = ocfs2_trim_group(sb, gd, first_bit, last_bit, minlen);
+		cnt = ocfs2_trim_group(sb, gd, group,
+				       first_bit, last_bit, minlen);
 		brelse(gd_bh);
 		gd_bh = NULL;
 		if (cnt < 0) {
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ocfs2/aops.c linux-libre-4.4.107-gnu/fs/ocfs2/aops.c
--- linux-libre-4.4-gnu/fs/ocfs2/aops.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/ocfs2/aops.c	2017-12-20 04:05:01.000000000 -0500
@@ -956,6 +956,7 @@ clean_orphan:
 		tmp_ret = ocfs2_del_inode_from_orphan(osb, inode, di_bh,
 				update_isize, end);
 		if (tmp_ret < 0) {
+			ocfs2_inode_unlock(inode, 1);
 			ret = tmp_ret;
 			mlog_errno(ret);
 			brelse(di_bh);
@@ -1102,7 +1103,7 @@ int ocfs2_map_page_blocks(struct page *p
 	int ret = 0;
 	struct buffer_head *head, *bh, *wait[2], **wait_bh = wait;
 	unsigned int block_end, block_start;
-	unsigned int bsize = 1 << inode->i_blkbits;
+	unsigned int bsize = i_blocksize(inode);
 
 	if (!page_has_buffers(page))
 		create_empty_buffers(page, bsize, 0);
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ocfs2/cluster/heartbeat.c linux-libre-4.4.107-gnu/fs/ocfs2/cluster/heartbeat.c
--- linux-libre-4.4-gnu/fs/ocfs2/cluster/heartbeat.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/ocfs2/cluster/heartbeat.c	2017-12-20 04:05:01.000000000 -0500
@@ -2070,13 +2070,13 @@ unlock:
 	spin_unlock(&o2hb_live_lock);
 }
 
-static ssize_t o2hb_heartbeat_group_threshold_show(struct config_item *item,
+static ssize_t o2hb_heartbeat_group_dead_threshold_show(struct config_item *item,
 		char *page)
 {
 	return sprintf(page, "%u\n", o2hb_dead_threshold);
 }
 
-static ssize_t o2hb_heartbeat_group_threshold_store(struct config_item *item,
+static ssize_t o2hb_heartbeat_group_dead_threshold_store(struct config_item *item,
 		const char *page, size_t count)
 {
 	unsigned long tmp;
@@ -2125,11 +2125,11 @@ static ssize_t o2hb_heartbeat_group_mode
 
 }
 
-CONFIGFS_ATTR(o2hb_heartbeat_group_, threshold);
+CONFIGFS_ATTR(o2hb_heartbeat_group_, dead_threshold);
 CONFIGFS_ATTR(o2hb_heartbeat_group_, mode);
 
 static struct configfs_attribute *o2hb_heartbeat_group_attrs[] = {
-	&o2hb_heartbeat_group_attr_threshold,
+	&o2hb_heartbeat_group_attr_dead_threshold,
 	&o2hb_heartbeat_group_attr_mode,
 	NULL,
 };
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ocfs2/dlm/dlmconvert.c linux-libre-4.4.107-gnu/fs/ocfs2/dlm/dlmconvert.c
--- linux-libre-4.4-gnu/fs/ocfs2/dlm/dlmconvert.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/ocfs2/dlm/dlmconvert.c	2017-12-20 04:05:01.000000000 -0500
@@ -287,6 +287,19 @@ enum dlm_status dlmconvert_remote(struct
 		status = DLM_DENIED;
 		goto bail;
 	}
+
+	if (lock->ml.type == type && lock->ml.convert_type == LKM_IVMODE) {
+		mlog(0, "last convert request returned DLM_RECOVERING, but "
+		     "owner has already queued and sent ast to me. res %.*s, "
+		     "(cookie=%u:%llu, type=%d, conv=%d)\n",
+		     res->lockname.len, res->lockname.name,
+		     dlm_get_lock_cookie_node(be64_to_cpu(lock->ml.cookie)),
+		     dlm_get_lock_cookie_seq(be64_to_cpu(lock->ml.cookie)),
+		     lock->ml.type, lock->ml.convert_type);
+		status = DLM_NORMAL;
+		goto bail;
+	}
+
 	res->state |= DLM_LOCK_RES_IN_PROGRESS;
 	/* move lock to local convert queue */
 	/* do not alter lock refcount.  switching lists. */
@@ -315,13 +328,22 @@ enum dlm_status dlmconvert_remote(struct
 
 	spin_lock(&res->spinlock);
 	res->state &= ~DLM_LOCK_RES_IN_PROGRESS;
-	lock->convert_pending = 0;
-	/* if it failed, move it back to granted queue */
+	/* if it failed, move it back to granted queue.
+	 * if master returns DLM_NORMAL and then down before sending ast,
+	 * it may have already been moved to granted queue, reset to
+	 * DLM_RECOVERING and retry convert */
 	if (status != DLM_NORMAL) {
 		if (status != DLM_NOTQUEUED)
 			dlm_error(status);
 		dlm_revert_pending_convert(res, lock);
+	} else if (!lock->convert_pending) {
+		mlog(0, "%s: res %.*s, owner died and lock has been moved back "
+				"to granted list, retry convert.\n",
+				dlm->name, res->lockname.len, res->lockname.name);
+		status = DLM_RECOVERING;
 	}
+
+	lock->convert_pending = 0;
 bail:
 	spin_unlock(&res->spinlock);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ocfs2/dlm/dlmmaster.c linux-libre-4.4.107-gnu/fs/ocfs2/dlm/dlmmaster.c
--- linux-libre-4.4-gnu/fs/ocfs2/dlm/dlmmaster.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/ocfs2/dlm/dlmmaster.c	2017-12-20 04:05:01.000000000 -0500
@@ -2519,6 +2519,11 @@ static int dlm_migrate_lockres(struct dl
 	spin_lock(&dlm->master_lock);
 	ret = dlm_add_migration_mle(dlm, res, mle, &oldmle, name,
 				    namelen, target, dlm->node_num);
+	/* get an extra reference on the mle.
+	 * otherwise the assert_master from the new
+	 * master will destroy this.
+	 */
+	dlm_get_mle_inuse(mle);
 	spin_unlock(&dlm->master_lock);
 	spin_unlock(&dlm->spinlock);
 
@@ -2554,6 +2559,7 @@ fail:
 		if (mle_added) {
 			dlm_mle_detach_hb_events(dlm, mle);
 			dlm_put_mle(mle);
+			dlm_put_mle_inuse(mle);
 		} else if (mle) {
 			kmem_cache_free(dlm_mle_cache, mle);
 			mle = NULL;
@@ -2571,17 +2577,6 @@ fail:
 	 * ensure that all assert_master work is flushed. */
 	flush_workqueue(dlm->dlm_worker);
 
-	/* get an extra reference on the mle.
-	 * otherwise the assert_master from the new
-	 * master will destroy this.
-	 * also, make sure that all callers of dlm_get_mle
-	 * take both dlm->spinlock and dlm->master_lock */
-	spin_lock(&dlm->spinlock);
-	spin_lock(&dlm->master_lock);
-	dlm_get_mle_inuse(mle);
-	spin_unlock(&dlm->master_lock);
-	spin_unlock(&dlm->spinlock);
-
 	/* notify new node and send all lock state */
 	/* call send_one_lockres with migration flag.
 	 * this serves as notice to the target node that a
@@ -3312,6 +3307,15 @@ top:
 			    mle->new_master != dead_node)
 				continue;
 
+			if (mle->new_master == dead_node && mle->inuse) {
+				mlog(ML_NOTICE, "%s: target %u died during "
+						"migration from %u, the MLE is "
+						"still keep used, ignore it!\n",
+						dlm->name, dead_node,
+						mle->master);
+				continue;
+			}
+
 			/* If we have reached this point, this mle needs to be
 			 * removed from the list and freed. */
 			dlm_clean_migration_mle(dlm, mle);
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ocfs2/dlm/dlmrecovery.c linux-libre-4.4.107-gnu/fs/ocfs2/dlm/dlmrecovery.c
--- linux-libre-4.4-gnu/fs/ocfs2/dlm/dlmrecovery.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/ocfs2/dlm/dlmrecovery.c	2017-12-20 04:05:01.000000000 -0500
@@ -2064,7 +2064,6 @@ void dlm_move_lockres_to_recovery_list(s
 			dlm_lock_get(lock);
 			if (lock->convert_pending) {
 				/* move converting lock back to granted */
-				BUG_ON(i != DLM_CONVERTING_LIST);
 				mlog(0, "node died with convert pending "
 				     "on %.*s. move back to granted list.\n",
 				     res->lockname.len, res->lockname.name);
@@ -2360,6 +2359,8 @@ static void dlm_do_local_recovery_cleanu
 						break;
 					}
 				}
+				dlm_lockres_clear_refmap_bit(dlm, res,
+						dead_node);
 				spin_unlock(&res->spinlock);
 				continue;
 			}
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ocfs2/dlmglue.c linux-libre-4.4.107-gnu/fs/ocfs2/dlmglue.c
--- linux-libre-4.4-gnu/fs/ocfs2/dlmglue.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/ocfs2/dlmglue.c	2017-12-20 04:05:01.000000000 -0500
@@ -531,6 +531,7 @@ void ocfs2_lock_res_init_once(struct ocf
 	init_waitqueue_head(&res->l_event);
 	INIT_LIST_HEAD(&res->l_blocked_list);
 	INIT_LIST_HEAD(&res->l_mask_waiters);
+	INIT_LIST_HEAD(&res->l_holders);
 }
 
 void ocfs2_inode_lock_res_init(struct ocfs2_lock_res *res,
@@ -748,6 +749,50 @@ void ocfs2_lock_res_free(struct ocfs2_lo
 	res->l_flags = 0UL;
 }
 
+/*
+ * Keep a list of processes who have interest in a lockres.
+ * Note: this is now only uesed for check recursive cluster locking.
+ */
+static inline void ocfs2_add_holder(struct ocfs2_lock_res *lockres,
+				   struct ocfs2_lock_holder *oh)
+{
+	INIT_LIST_HEAD(&oh->oh_list);
+	oh->oh_owner_pid = get_pid(task_pid(current));
+
+	spin_lock(&lockres->l_lock);
+	list_add_tail(&oh->oh_list, &lockres->l_holders);
+	spin_unlock(&lockres->l_lock);
+}
+
+static inline void ocfs2_remove_holder(struct ocfs2_lock_res *lockres,
+				       struct ocfs2_lock_holder *oh)
+{
+	spin_lock(&lockres->l_lock);
+	list_del(&oh->oh_list);
+	spin_unlock(&lockres->l_lock);
+
+	put_pid(oh->oh_owner_pid);
+}
+
+static inline int ocfs2_is_locked_by_me(struct ocfs2_lock_res *lockres)
+{
+	struct ocfs2_lock_holder *oh;
+	struct pid *pid;
+
+	/* look in the list of holders for one with the current task as owner */
+	spin_lock(&lockres->l_lock);
+	pid = task_pid(current);
+	list_for_each_entry(oh, &lockres->l_holders, oh_list) {
+		if (oh->oh_owner_pid == pid) {
+			spin_unlock(&lockres->l_lock);
+			return 1;
+		}
+	}
+	spin_unlock(&lockres->l_lock);
+
+	return 0;
+}
+
 static inline void ocfs2_inc_holders(struct ocfs2_lock_res *lockres,
 				     int level)
 {
@@ -1390,6 +1435,7 @@ static int __ocfs2_cluster_lock(struct o
 	unsigned int gen;
 	int noqueue_attempted = 0;
 	int dlm_locked = 0;
+	int kick_dc = 0;
 
 	if (!(lockres->l_flags & OCFS2_LOCK_INITIALIZED)) {
 		mlog_errno(-EINVAL);
@@ -1524,7 +1570,12 @@ update_holders:
 unlock:
 	lockres_clear_flags(lockres, OCFS2_LOCK_UPCONVERT_FINISHING);
 
+	/* ocfs2_unblock_lock reques on seeing OCFS2_LOCK_UPCONVERT_FINISHING */
+	kick_dc = (lockres->l_flags & OCFS2_LOCK_BLOCKED);
+
 	spin_unlock_irqrestore(&lockres->l_lock, flags);
+	if (kick_dc)
+		ocfs2_wake_downconvert_thread(osb);
 out:
 	/*
 	 * This is helping work around a lock inversion between the page lock
@@ -2337,8 +2388,9 @@ int ocfs2_inode_lock_full_nested(struct
 		goto getbh;
 	}
 
-	if (ocfs2_mount_local(osb))
-		goto local;
+	if ((arg_flags & OCFS2_META_LOCK_GETBH) ||
+	    ocfs2_mount_local(osb))
+		goto update;
 
 	if (!(arg_flags & OCFS2_META_LOCK_RECOVERY))
 		ocfs2_wait_for_recovery(osb);
@@ -2367,7 +2419,7 @@ int ocfs2_inode_lock_full_nested(struct
 	if (!(arg_flags & OCFS2_META_LOCK_RECOVERY))
 		ocfs2_wait_for_recovery(osb);
 
-local:
+update:
 	/*
 	 * We only see this flag if we're being called from
 	 * ocfs2_read_locked_inode(). It means we're locking an inode
@@ -2509,6 +2561,59 @@ void ocfs2_inode_unlock(struct inode *in
 		ocfs2_cluster_unlock(OCFS2_SB(inode->i_sb), lockres, level);
 }
 
+/*
+ * This _tracker variantes are introduced to deal with the recursive cluster
+ * locking issue. The idea is to keep track of a lock holder on the stack of
+ * the current process. If there's a lock holder on the stack, we know the
+ * task context is already protected by cluster locking. Currently, they're
+ * used in some VFS entry routines.
+ *
+ * return < 0 on error, return == 0 if there's no lock holder on the stack
+ * before this call, return == 1 if this call would be a recursive locking.
+ */
+int ocfs2_inode_lock_tracker(struct inode *inode,
+			     struct buffer_head **ret_bh,
+			     int ex,
+			     struct ocfs2_lock_holder *oh)
+{
+	int status;
+	int arg_flags = 0, has_locked;
+	struct ocfs2_lock_res *lockres;
+
+	lockres = &OCFS2_I(inode)->ip_inode_lockres;
+	has_locked = ocfs2_is_locked_by_me(lockres);
+	/* Just get buffer head if the cluster lock has been taken */
+	if (has_locked)
+		arg_flags = OCFS2_META_LOCK_GETBH;
+
+	if (likely(!has_locked || ret_bh)) {
+		status = ocfs2_inode_lock_full(inode, ret_bh, ex, arg_flags);
+		if (status < 0) {
+			if (status != -ENOENT)
+				mlog_errno(status);
+			return status;
+		}
+	}
+	if (!has_locked)
+		ocfs2_add_holder(lockres, oh);
+
+	return has_locked;
+}
+
+void ocfs2_inode_unlock_tracker(struct inode *inode,
+				int ex,
+				struct ocfs2_lock_holder *oh,
+				int had_lock)
+{
+	struct ocfs2_lock_res *lockres;
+
+	lockres = &OCFS2_I(inode)->ip_inode_lockres;
+	if (!had_lock) {
+		ocfs2_remove_holder(lockres, oh);
+		ocfs2_inode_unlock(inode, ex);
+	}
+}
+
 int ocfs2_orphan_scan_lock(struct ocfs2_super *osb, u32 *seqno)
 {
 	struct ocfs2_lock_res *lockres;
@@ -3315,6 +3420,16 @@ static int ocfs2_downconvert_lock(struct
 	mlog(ML_BASTS, "lockres %s, level %d => %d\n", lockres->l_name,
 	     lockres->l_level, new_level);
 
+	/*
+	 * On DLM_LKF_VALBLK, fsdlm behaves differently with o2cb. It always
+	 * expects DLM_LKF_VALBLK being set if the LKB has LVB, so that
+	 * we can recover correctly from node failure. Otherwise, we may get
+	 * invalid LVB in LKB, but without DLM_SBF_VALNOTVALID being set.
+	 */
+	if (!ocfs2_is_o2cb_active() &&
+	    lockres->l_ops->flags & LOCK_TYPE_USES_LVB)
+		lvb = 1;
+
 	if (lvb)
 		dlm_flags |= DLM_LKF_VALBLK;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ocfs2/dlmglue.h linux-libre-4.4.107-gnu/fs/ocfs2/dlmglue.h
--- linux-libre-4.4-gnu/fs/ocfs2/dlmglue.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/ocfs2/dlmglue.h	2017-12-20 04:05:01.000000000 -0500
@@ -70,6 +70,11 @@ struct ocfs2_orphan_scan_lvb {
 	__be32	lvb_os_seqno;
 };
 
+struct ocfs2_lock_holder {
+	struct list_head oh_list;
+	struct pid *oh_owner_pid;
+};
+
 /* ocfs2_inode_lock_full() 'arg_flags' flags */
 /* don't wait on recovery. */
 #define OCFS2_META_LOCK_RECOVERY	(0x01)
@@ -77,6 +82,8 @@ struct ocfs2_orphan_scan_lvb {
 #define OCFS2_META_LOCK_NOQUEUE		(0x02)
 /* don't block waiting for the downconvert thread, instead return -EAGAIN */
 #define OCFS2_LOCK_NONBLOCK		(0x04)
+/* just get back disk inode bh if we've got cluster lock. */
+#define OCFS2_META_LOCK_GETBH		(0x08)
 
 /* Locking subclasses of inode cluster lock */
 enum {
@@ -170,4 +177,15 @@ void ocfs2_put_dlm_debug(struct ocfs2_dl
 
 /* To set the locking protocol on module initialization */
 void ocfs2_set_locking_protocol(void);
+
+/* The _tracker pair is used to avoid cluster recursive locking */
+int ocfs2_inode_lock_tracker(struct inode *inode,
+			     struct buffer_head **ret_bh,
+			     int ex,
+			     struct ocfs2_lock_holder *oh);
+void ocfs2_inode_unlock_tracker(struct inode *inode,
+				int ex,
+				struct ocfs2_lock_holder *oh,
+				int had_lock);
+
 #endif	/* DLMGLUE_H */
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ocfs2/file.c linux-libre-4.4.107-gnu/fs/ocfs2/file.c
--- linux-libre-4.4-gnu/fs/ocfs2/file.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/ocfs2/file.c	2017-12-20 04:05:01.000000000 -0500
@@ -808,7 +808,7 @@ static int ocfs2_write_zero_page(struct
 	/* We know that zero_from is block aligned */
 	for (block_start = zero_from; block_start < zero_to;
 	     block_start = block_end) {
-		block_end = block_start + (1 << inode->i_blkbits);
+		block_end = block_start + i_blocksize(inode);
 
 		/*
 		 * block_start is block-aligned.  Bump it by one to force
@@ -1268,20 +1268,20 @@ bail_unlock_rw:
 	if (size_change)
 		ocfs2_rw_unlock(inode, 1);
 bail:
-	brelse(bh);
 
 	/* Release quota pointers in case we acquired them */
 	for (qtype = 0; qtype < OCFS2_MAXQUOTAS; qtype++)
 		dqput(transfer_to[qtype]);
 
 	if (!status && attr->ia_valid & ATTR_MODE) {
-		status = posix_acl_chmod(inode, inode->i_mode);
+		status = ocfs2_acl_chmod(inode, bh);
 		if (status < 0)
 			mlog_errno(status);
 	}
 	if (inode_locked)
 		ocfs2_inode_unlock(inode, 1);
 
+	brelse(bh);
 	return status;
 }
 
@@ -1536,7 +1536,8 @@ static int ocfs2_zero_partial_clusters(s
 				       u64 start, u64 len)
 {
 	int ret = 0;
-	u64 tmpend, end = start + len;
+	u64 tmpend = 0;
+	u64 end = start + len;
 	struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
 	unsigned int csize = osb->s_clustersize;
 	handle_t *handle;
@@ -1568,18 +1569,31 @@ static int ocfs2_zero_partial_clusters(s
 	}
 
 	/*
-	 * We want to get the byte offset of the end of the 1st cluster.
+	 * If start is on a cluster boundary and end is somewhere in another
+	 * cluster, we have not COWed the cluster starting at start, unless
+	 * end is also within the same cluster. So, in this case, we skip this
+	 * first call to ocfs2_zero_range_for_truncate() truncate and move on
+	 * to the next one.
 	 */
-	tmpend = (u64)osb->s_clustersize + (start & ~(osb->s_clustersize - 1));
-	if (tmpend > end)
-		tmpend = end;
+	if ((start & (csize - 1)) != 0) {
+		/*
+		 * We want to get the byte offset of the end of the 1st
+		 * cluster.
+		 */
+		tmpend = (u64)osb->s_clustersize +
+			(start & ~(osb->s_clustersize - 1));
+		if (tmpend > end)
+			tmpend = end;
 
-	trace_ocfs2_zero_partial_clusters_range1((unsigned long long)start,
-						 (unsigned long long)tmpend);
+		trace_ocfs2_zero_partial_clusters_range1(
+			(unsigned long long)start,
+			(unsigned long long)tmpend);
 
-	ret = ocfs2_zero_range_for_truncate(inode, handle, start, tmpend);
-	if (ret)
-		mlog_errno(ret);
+		ret = ocfs2_zero_range_for_truncate(inode, handle, start,
+						    tmpend);
+		if (ret)
+			mlog_errno(ret);
+	}
 
 	if (tmpend < end) {
 		/*
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ocfs2/namei.c linux-libre-4.4.107-gnu/fs/ocfs2/namei.c
--- linux-libre-4.4-gnu/fs/ocfs2/namei.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/ocfs2/namei.c	2017-12-20 04:05:01.000000000 -0500
@@ -259,7 +259,6 @@ static int ocfs2_mknod(struct inode *dir
 	struct ocfs2_dir_lookup_result lookup = { NULL, };
 	sigset_t oldset;
 	int did_block_signals = 0;
-	struct posix_acl *default_acl = NULL, *acl = NULL;
 	struct ocfs2_dentry_lock *dl = NULL;
 
 	trace_ocfs2_mknod(dir, dentry, dentry->d_name.len, dentry->d_name.name,
@@ -367,12 +366,6 @@ static int ocfs2_mknod(struct inode *dir
 		goto leave;
 	}
 
-	status = posix_acl_create(dir, &inode->i_mode, &default_acl, &acl);
-	if (status) {
-		mlog_errno(status);
-		goto leave;
-	}
-
 	handle = ocfs2_start_trans(osb, ocfs2_mknod_credits(osb->sb,
 							    S_ISDIR(mode),
 							    xattr_credits));
@@ -421,16 +414,8 @@ static int ocfs2_mknod(struct inode *dir
 		inc_nlink(dir);
 	}
 
-	if (default_acl) {
-		status = ocfs2_set_acl(handle, inode, new_fe_bh,
-				       ACL_TYPE_DEFAULT, default_acl,
-				       meta_ac, data_ac);
-	}
-	if (!status && acl) {
-		status = ocfs2_set_acl(handle, inode, new_fe_bh,
-				       ACL_TYPE_ACCESS, acl,
-				       meta_ac, data_ac);
-	}
+	status = ocfs2_init_acl(handle, inode, dir, new_fe_bh, parent_fe_bh,
+			 meta_ac, data_ac);
 
 	if (status < 0) {
 		mlog_errno(status);
@@ -472,10 +457,6 @@ static int ocfs2_mknod(struct inode *dir
 	d_instantiate(dentry, inode);
 	status = 0;
 leave:
-	if (default_acl)
-		posix_acl_release(default_acl);
-	if (acl)
-		posix_acl_release(acl);
 	if (status < 0 && did_quota_inode)
 		dquot_free_inode(inode);
 	if (handle)
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ocfs2/ocfs2.h linux-libre-4.4.107-gnu/fs/ocfs2/ocfs2.h
--- linux-libre-4.4-gnu/fs/ocfs2/ocfs2.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/ocfs2/ocfs2.h	2017-12-20 04:05:01.000000000 -0500
@@ -172,6 +172,7 @@ struct ocfs2_lock_res {
 
 	struct list_head         l_blocked_list;
 	struct list_head         l_mask_waiters;
+	struct list_head	 l_holders;
 
 	unsigned long		 l_flags;
 	char                     l_name[OCFS2_LOCK_ID_MAX_LEN];
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ocfs2/refcounttree.c linux-libre-4.4.107-gnu/fs/ocfs2/refcounttree.c
--- linux-libre-4.4-gnu/fs/ocfs2/refcounttree.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/ocfs2/refcounttree.c	2017-12-20 04:05:01.000000000 -0500
@@ -4248,20 +4248,12 @@ static int ocfs2_reflink(struct dentry *
 	struct inode *inode = d_inode(old_dentry);
 	struct buffer_head *old_bh = NULL;
 	struct inode *new_orphan_inode = NULL;
-	struct posix_acl *default_acl, *acl;
-	umode_t mode;
 
 	if (!ocfs2_refcount_tree(OCFS2_SB(inode->i_sb)))
 		return -EOPNOTSUPP;
 
-	mode = inode->i_mode;
-	error = posix_acl_create(dir, &mode, &default_acl, &acl);
-	if (error) {
-		mlog_errno(error);
-		return error;
-	}
 
-	error = ocfs2_create_inode_in_orphan(dir, mode,
+	error = ocfs2_create_inode_in_orphan(dir, inode->i_mode,
 					     &new_orphan_inode);
 	if (error) {
 		mlog_errno(error);
@@ -4300,16 +4292,11 @@ static int ocfs2_reflink(struct dentry *
 	/* If the security isn't preserved, we need to re-initialize them. */
 	if (!preserve) {
 		error = ocfs2_init_security_and_acl(dir, new_orphan_inode,
-						    &new_dentry->d_name,
-						    default_acl, acl);
+						    &new_dentry->d_name);
 		if (error)
 			mlog_errno(error);
 	}
 out:
-	if (default_acl)
-		posix_acl_release(default_acl);
-	if (acl)
-		posix_acl_release(acl);
 	if (!error) {
 		error = ocfs2_mv_orphaned_inode_to_new(dir, new_orphan_inode,
 						       new_dentry);
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ocfs2/stackglue.c linux-libre-4.4.107-gnu/fs/ocfs2/stackglue.c
--- linux-libre-4.4-gnu/fs/ocfs2/stackglue.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/ocfs2/stackglue.c	2017-12-20 04:05:01.000000000 -0500
@@ -48,6 +48,12 @@ static char ocfs2_hb_ctl_path[OCFS2_MAX_
  */
 static struct ocfs2_stack_plugin *active_stack;
 
+inline int ocfs2_is_o2cb_active(void)
+{
+	return !strcmp(active_stack->sp_name, OCFS2_STACK_PLUGIN_O2CB);
+}
+EXPORT_SYMBOL_GPL(ocfs2_is_o2cb_active);
+
 static struct ocfs2_stack_plugin *ocfs2_stack_lookup(const char *name)
 {
 	struct ocfs2_stack_plugin *p;
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ocfs2/stackglue.h linux-libre-4.4.107-gnu/fs/ocfs2/stackglue.h
--- linux-libre-4.4-gnu/fs/ocfs2/stackglue.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/ocfs2/stackglue.h	2017-12-20 04:05:01.000000000 -0500
@@ -298,4 +298,7 @@ void ocfs2_stack_glue_set_max_proto_vers
 int ocfs2_stack_glue_register(struct ocfs2_stack_plugin *plugin);
 void ocfs2_stack_glue_unregister(struct ocfs2_stack_plugin *plugin);
 
+/* In ocfs2_downconvert_lock(), we need to know which stack we are using */
+int ocfs2_is_o2cb_active(void);
+
 #endif  /* STACKGLUE_H */
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ocfs2/xattr.c linux-libre-4.4.107-gnu/fs/ocfs2/xattr.c
--- linux-libre-4.4-gnu/fs/ocfs2/xattr.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/ocfs2/xattr.c	2017-12-20 04:05:01.000000000 -0500
@@ -7197,12 +7197,10 @@ out:
  */
 int ocfs2_init_security_and_acl(struct inode *dir,
 				struct inode *inode,
-				const struct qstr *qstr,
-				struct posix_acl *default_acl,
-				struct posix_acl *acl)
+				const struct qstr *qstr)
 {
-	struct buffer_head *dir_bh = NULL;
 	int ret = 0;
+	struct buffer_head *dir_bh = NULL;
 
 	ret = ocfs2_init_security_get(inode, dir, qstr, NULL);
 	if (ret) {
@@ -7215,11 +7213,9 @@ int ocfs2_init_security_and_acl(struct i
 		mlog_errno(ret);
 		goto leave;
 	}
-
-	if (!ret && default_acl)
-		ret = ocfs2_iop_set_acl(inode, default_acl, ACL_TYPE_DEFAULT);
-	if (!ret && acl)
-		ret = ocfs2_iop_set_acl(inode, acl, ACL_TYPE_ACCESS);
+	ret = ocfs2_init_acl(NULL, inode, dir, NULL, dir_bh, NULL, NULL);
+	if (ret)
+		mlog_errno(ret);
 
 	ocfs2_inode_unlock(dir, 0);
 	brelse(dir_bh);
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ocfs2/xattr.h linux-libre-4.4.107-gnu/fs/ocfs2/xattr.h
--- linux-libre-4.4-gnu/fs/ocfs2/xattr.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/ocfs2/xattr.h	2017-12-20 04:05:01.000000000 -0500
@@ -94,7 +94,5 @@ int ocfs2_reflink_xattrs(struct inode *o
 			 bool preserve_security);
 int ocfs2_init_security_and_acl(struct inode *dir,
 				struct inode *inode,
-				const struct qstr *qstr,
-				struct posix_acl *default_acl,
-				struct posix_acl *acl);
+				const struct qstr *qstr);
 #endif /* OCFS2_XATTR_H */
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/open.c linux-libre-4.4.107-gnu/fs/open.c
--- linux-libre-4.4-gnu/fs/open.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/open.c	2017-12-20 04:05:01.000000000 -0500
@@ -840,16 +840,12 @@ EXPORT_SYMBOL(file_path);
 int vfs_open(const struct path *path, struct file *file,
 	     const struct cred *cred)
 {
-	struct dentry *dentry = path->dentry;
-	struct inode *inode = dentry->d_inode;
+	struct inode *inode = vfs_select_inode(path->dentry, file->f_flags);
 
-	file->f_path = *path;
-	if (dentry->d_flags & DCACHE_OP_SELECT_INODE) {
-		inode = dentry->d_op->d_select_inode(dentry, file->f_flags);
-		if (IS_ERR(inode))
-			return PTR_ERR(inode);
-	}
+	if (IS_ERR(inode))
+		return PTR_ERR(inode);
 
+	file->f_path = *path;
 	return do_dentry_open(file, inode, NULL, cred);
 }
 
@@ -889,6 +885,12 @@ static inline int build_open_flags(int f
 	int lookup_flags = 0;
 	int acc_mode;
 
+	/*
+	 * Clear out all open flags we don't know about so that we don't report
+	 * them in fcntl(F_GETFD) or similar interfaces.
+	 */
+	flags &= VALID_OPEN_FLAGS;
+
 	if (flags & (O_CREAT | __O_TMPFILE))
 		op->mode = (mode & S_IALLUGO) | S_IFREG;
 	else
@@ -995,14 +997,12 @@ struct file *filp_open(const char *filen
 EXPORT_SYMBOL(filp_open);
 
 struct file *file_open_root(struct dentry *dentry, struct vfsmount *mnt,
-			    const char *filename, int flags)
+			    const char *filename, int flags, umode_t mode)
 {
 	struct open_flags op;
-	int err = build_open_flags(flags, 0, &op);
+	int err = build_open_flags(flags, mode, &op);
 	if (err)
 		return ERR_PTR(err);
-	if (flags & O_CREAT)
-		return ERR_PTR(-EINVAL);
 	return do_file_open_root(dentry, mnt, filename, &op);
 }
 EXPORT_SYMBOL(file_open_root);
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/overlayfs/copy_up.c linux-libre-4.4.107-gnu/fs/overlayfs/copy_up.c
--- linux-libre-4.4-gnu/fs/overlayfs/copy_up.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/overlayfs/copy_up.c	2017-12-20 04:05:01.000000000 -0500
@@ -22,9 +22,10 @@
 
 int ovl_copy_xattr(struct dentry *old, struct dentry *new)
 {
-	ssize_t list_size, size;
-	char *buf, *name, *value;
-	int error;
+	ssize_t list_size, size, value_size = 0;
+	char *buf, *name, *value = NULL;
+	int uninitialized_var(error);
+	size_t slen;
 
 	if (!old->d_inode->i_op->getxattr ||
 	    !new->d_inode->i_op->getxattr)
@@ -41,29 +42,51 @@ int ovl_copy_xattr(struct dentry *old, s
 	if (!buf)
 		return -ENOMEM;
 
-	error = -ENOMEM;
-	value = kmalloc(XATTR_SIZE_MAX, GFP_KERNEL);
-	if (!value)
-		goto out;
-
 	list_size = vfs_listxattr(old, buf, list_size);
 	if (list_size <= 0) {
 		error = list_size;
-		goto out_free_value;
+		goto out;
 	}
 
-	for (name = buf; name < (buf + list_size); name += strlen(name) + 1) {
-		size = vfs_getxattr(old, name, value, XATTR_SIZE_MAX);
-		if (size <= 0) {
+	for (name = buf; list_size; name += slen) {
+		slen = strnlen(name, list_size) + 1;
+
+		/* underlying fs providing us with an broken xattr list? */
+		if (WARN_ON(slen > list_size)) {
+			error = -EIO;
+			break;
+		}
+		list_size -= slen;
+
+		if (ovl_is_private_xattr(name))
+			continue;
+retry:
+		size = vfs_getxattr(old, name, value, value_size);
+		if (size == -ERANGE)
+			size = vfs_getxattr(old, name, NULL, 0);
+
+		if (size < 0) {
 			error = size;
-			goto out_free_value;
+			break;
+		}
+
+		if (size > value_size) {
+			void *new;
+
+			new = krealloc(value, size, GFP_KERNEL);
+			if (!new) {
+				error = -ENOMEM;
+				break;
+			}
+			value = new;
+			value_size = size;
+			goto retry;
 		}
+
 		error = vfs_setxattr(new, name, value, size, 0);
 		if (error)
-			goto out_free_value;
+			break;
 	}
-
-out_free_value:
 	kfree(value);
 out:
 	kfree(buf);
@@ -116,6 +139,8 @@ static int ovl_copy_up_data(struct path
 		len -= bytes;
 	}
 
+	if (!error)
+		error = vfs_fsync(new_file, 0);
 	fput(new_file);
 out_fput:
 	fput(old_file);
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/overlayfs/dir.c linux-libre-4.4.107-gnu/fs/overlayfs/dir.c
--- linux-libre-4.4-gnu/fs/overlayfs/dir.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/overlayfs/dir.c	2017-12-20 04:05:01.000000000 -0500
@@ -12,6 +12,7 @@
 #include <linux/xattr.h>
 #include <linux/security.h>
 #include <linux/cred.h>
+#include <linux/atomic.h>
 #include "overlayfs.h"
 
 void ovl_cleanup(struct inode *wdir, struct dentry *wdentry)
@@ -35,8 +36,10 @@ struct dentry *ovl_lookup_temp(struct de
 {
 	struct dentry *temp;
 	char name[20];
+	static atomic_t temp_id = ATOMIC_INIT(0);
 
-	snprintf(name, sizeof(name), "#%lx", (unsigned long) dentry);
+	/* counter is allowed to wrap, since temp dentries are ephemeral */
+	snprintf(name, sizeof(name), "#%x", atomic_inc_return(&temp_id));
 
 	temp = lookup_one_len(name, workdir, strlen(name));
 	if (!IS_ERR(temp) && temp->d_inode) {
@@ -511,6 +514,7 @@ static int ovl_remove_and_whiteout(struc
 	struct dentry *upper;
 	struct dentry *opaquedir = NULL;
 	int err;
+	int flags = 0;
 
 	if (WARN_ON(!workdir))
 		return -EROFS;
@@ -540,46 +544,39 @@ static int ovl_remove_and_whiteout(struc
 	if (err)
 		goto out_dput;
 
-	whiteout = ovl_whiteout(workdir, dentry);
-	err = PTR_ERR(whiteout);
-	if (IS_ERR(whiteout))
+	upper = lookup_one_len(dentry->d_name.name, upperdir,
+			       dentry->d_name.len);
+	err = PTR_ERR(upper);
+	if (IS_ERR(upper))
 		goto out_unlock;
 
-	upper = ovl_dentry_upper(dentry);
-	if (!upper) {
-		upper = lookup_one_len(dentry->d_name.name, upperdir,
-				       dentry->d_name.len);
-		err = PTR_ERR(upper);
-		if (IS_ERR(upper))
-			goto kill_whiteout;
-
-		err = ovl_do_rename(wdir, whiteout, udir, upper, 0);
-		dput(upper);
-		if (err)
-			goto kill_whiteout;
-	} else {
-		int flags = 0;
+	err = -ESTALE;
+	if ((opaquedir && upper != opaquedir) ||
+	    (!opaquedir && ovl_dentry_upper(dentry) &&
+	     upper != ovl_dentry_upper(dentry))) {
+		goto out_dput_upper;
+	}
 
-		if (opaquedir)
-			upper = opaquedir;
-		err = -ESTALE;
-		if (upper->d_parent != upperdir)
-			goto kill_whiteout;
+	whiteout = ovl_whiteout(workdir, dentry);
+	err = PTR_ERR(whiteout);
+	if (IS_ERR(whiteout))
+		goto out_dput_upper;
 
-		if (is_dir)
-			flags |= RENAME_EXCHANGE;
+	if (d_is_dir(upper))
+		flags = RENAME_EXCHANGE;
 
-		err = ovl_do_rename(wdir, whiteout, udir, upper, flags);
-		if (err)
-			goto kill_whiteout;
+	err = ovl_do_rename(wdir, whiteout, udir, upper, flags);
+	if (err)
+		goto kill_whiteout;
+	if (flags)
+		ovl_cleanup(wdir, upper);
 
-		if (is_dir)
-			ovl_cleanup(wdir, upper);
-	}
 	ovl_dentry_version_inc(dentry->d_parent);
 out_d_drop:
 	d_drop(dentry);
 	dput(whiteout);
+out_dput_upper:
+	dput(upper);
 out_unlock:
 	unlock_rename(workdir, upperdir);
 out_dput:
@@ -596,21 +593,25 @@ static int ovl_remove_upper(struct dentr
 {
 	struct dentry *upperdir = ovl_dentry_upper(dentry->d_parent);
 	struct inode *dir = upperdir->d_inode;
-	struct dentry *upper = ovl_dentry_upper(dentry);
+	struct dentry *upper;
 	int err;
 
 	mutex_lock_nested(&dir->i_mutex, I_MUTEX_PARENT);
+	upper = lookup_one_len(dentry->d_name.name, upperdir,
+			       dentry->d_name.len);
+	err = PTR_ERR(upper);
+	if (IS_ERR(upper))
+		goto out_unlock;
+
 	err = -ESTALE;
-	if (upper->d_parent == upperdir) {
-		/* Don't let d_delete() think it can reset d_inode */
-		dget(upper);
+	if (upper == ovl_dentry_upper(dentry)) {
 		if (is_dir)
 			err = vfs_rmdir(dir, upper);
 		else
 			err = vfs_unlink(dir, upper, NULL);
-		dput(upper);
 		ovl_dentry_version_inc(dentry->d_parent);
 	}
+	dput(upper);
 
 	/*
 	 * Keeping this dentry hashed would mean having to release
@@ -618,7 +619,9 @@ static int ovl_remove_upper(struct dentr
 	 * sole user of this dentry.  Too tricky...  Just unhash for
 	 * now.
 	 */
-	d_drop(dentry);
+	if (!err)
+		d_drop(dentry);
+out_unlock:
 	mutex_unlock(&dir->i_mutex);
 
 	return err;
@@ -839,29 +842,39 @@ static int ovl_rename2(struct inode *old
 
 	trap = lock_rename(new_upperdir, old_upperdir);
 
-	olddentry = ovl_dentry_upper(old);
-	newdentry = ovl_dentry_upper(new);
-	if (newdentry) {
+
+	olddentry = lookup_one_len(old->d_name.name, old_upperdir,
+				   old->d_name.len);
+	err = PTR_ERR(olddentry);
+	if (IS_ERR(olddentry))
+		goto out_unlock;
+
+	err = -ESTALE;
+	if (olddentry != ovl_dentry_upper(old))
+		goto out_dput_old;
+
+	newdentry = lookup_one_len(new->d_name.name, new_upperdir,
+				   new->d_name.len);
+	err = PTR_ERR(newdentry);
+	if (IS_ERR(newdentry))
+		goto out_dput_old;
+
+	err = -ESTALE;
+	if (ovl_dentry_upper(new)) {
 		if (opaquedir) {
-			newdentry = opaquedir;
-			opaquedir = NULL;
+			if (newdentry != opaquedir)
+				goto out_dput;
 		} else {
-			dget(newdentry);
+			if (newdentry != ovl_dentry_upper(new))
+				goto out_dput;
 		}
 	} else {
 		new_create = true;
-		newdentry = lookup_one_len(new->d_name.name, new_upperdir,
-					   new->d_name.len);
-		err = PTR_ERR(newdentry);
-		if (IS_ERR(newdentry))
-			goto out_unlock;
+		if (!d_is_negative(newdentry) &&
+		    (!new_opaque || !ovl_is_whiteout(newdentry)))
+			goto out_dput;
 	}
 
-	err = -ESTALE;
-	if (olddentry->d_parent != old_upperdir)
-		goto out_dput;
-	if (newdentry->d_parent != new_upperdir)
-		goto out_dput;
 	if (olddentry == trap)
 		goto out_dput;
 	if (newdentry == trap)
@@ -903,6 +916,13 @@ static int ovl_rename2(struct inode *old
 	if (!overwrite && new_is_dir && !old_opaque && new_opaque)
 		ovl_remove_opaque(newdentry);
 
+	/*
+	 * Old dentry now lives in different location. Dentries in
+	 * lowerstack are stale. We cannot drop them here because
+	 * access to them is lockless. This could be only pure upper
+	 * or opaque directory - numlower is zero. Or upper non-dir
+	 * entry - its pureness is tracked by flag opaque.
+	 */
 	if (old_opaque != new_opaque) {
 		ovl_dentry_set_opaque(old, new_opaque);
 		if (!overwrite)
@@ -917,6 +937,8 @@ static int ovl_rename2(struct inode *old
 
 out_dput:
 	dput(newdentry);
+out_dput_old:
+	dput(olddentry);
 out_unlock:
 	unlock_rename(new_upperdir, old_upperdir);
 out_revert_creds:
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/overlayfs/inode.c linux-libre-4.4.107-gnu/fs/overlayfs/inode.c
--- linux-libre-4.4-gnu/fs/overlayfs/inode.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/overlayfs/inode.c	2017-12-20 04:05:01.000000000 -0500
@@ -42,6 +42,19 @@ int ovl_setattr(struct dentry *dentry, s
 	int err;
 	struct dentry *upperdentry;
 
+	/*
+	 * Check for permissions before trying to copy-up.  This is redundant
+	 * since it will be rechecked later by ->setattr() on upper dentry.  But
+	 * without this, copy-up can be triggered by just about anybody.
+	 *
+	 * We don't initialize inode->size, which just means that
+	 * inode_newsize_ok() will always check against MAX_LFS_FILESIZE and not
+	 * check for a swapfile (which this won't be anyway).
+	 */
+	err = inode_change_ok(dentry->d_inode, attr);
+	if (err)
+		return err;
+
 	err = ovl_want_write(dentry);
 	if (err)
 		goto out;
@@ -50,8 +63,13 @@ int ovl_setattr(struct dentry *dentry, s
 	if (!err) {
 		upperdentry = ovl_dentry_upper(dentry);
 
+		if (attr->ia_valid & (ATTR_KILL_SUID|ATTR_KILL_SGID))
+			attr->ia_valid &= ~ATTR_MODE;
+
 		mutex_lock(&upperdentry->d_inode->i_mutex);
 		err = notify_change(upperdentry, attr, NULL);
+		if (!err)
+			ovl_copyattr(upperdentry->d_inode, dentry->d_inode);
 		mutex_unlock(&upperdentry->d_inode->i_mutex);
 	}
 	ovl_drop_write(dentry);
@@ -201,7 +219,7 @@ static int ovl_readlink(struct dentry *d
 }
 
 
-static bool ovl_is_private_xattr(const char *name)
+bool ovl_is_private_xattr(const char *name)
 {
 	return strncmp(name, OVL_XATTR_PRE_NAME, OVL_XATTR_PRE_LEN) == 0;
 }
@@ -259,7 +277,8 @@ ssize_t ovl_listxattr(struct dentry *den
 	struct path realpath;
 	enum ovl_path_type type = ovl_path_real(dentry, &realpath);
 	ssize_t res;
-	int off;
+	size_t len;
+	char *s;
 
 	res = vfs_listxattr(realpath.dentry, list, size);
 	if (res <= 0 || size == 0)
@@ -269,17 +288,19 @@ ssize_t ovl_listxattr(struct dentry *den
 		return res;
 
 	/* filter out private xattrs */
-	for (off = 0; off < res;) {
-		char *s = list + off;
-		size_t slen = strlen(s) + 1;
+	for (s = list, len = res; len;) {
+		size_t slen = strnlen(s, len) + 1;
 
-		BUG_ON(off + slen > res);
+		/* underlying fs providing us with an broken xattr list? */
+		if (WARN_ON(slen > len))
+			return -EIO;
 
+		len -= slen;
 		if (ovl_is_private_xattr(s)) {
 			res -= slen;
-			memmove(s, s + slen, res - off);
+			memmove(s, s + slen, len);
 		} else {
-			off += slen;
+			s += slen;
 		}
 	}
 
@@ -397,12 +418,11 @@ struct inode *ovl_new_inode(struct super
 	if (!inode)
 		return NULL;
 
-	mode &= S_IFMT;
-
 	inode->i_ino = get_next_ino();
 	inode->i_mode = mode;
 	inode->i_flags |= S_NOATIME | S_NOCMTIME;
 
+	mode &= S_IFMT;
 	switch (mode) {
 	case S_IFDIR:
 		inode->i_private = oe;
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/overlayfs/overlayfs.h linux-libre-4.4.107-gnu/fs/overlayfs/overlayfs.h
--- linux-libre-4.4-gnu/fs/overlayfs/overlayfs.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/overlayfs/overlayfs.h	2017-12-20 04:05:01.000000000 -0500
@@ -174,6 +174,7 @@ ssize_t ovl_getxattr(struct dentry *dent
 ssize_t ovl_listxattr(struct dentry *dentry, char *list, size_t size);
 int ovl_removexattr(struct dentry *dentry, const char *name);
 struct inode *ovl_d_select_inode(struct dentry *dentry, unsigned file_flags);
+bool ovl_is_private_xattr(const char *name);
 
 struct inode *ovl_new_inode(struct super_block *sb, umode_t mode,
 			    struct ovl_entry *oe);
@@ -181,6 +182,7 @@ static inline void ovl_copyattr(struct i
 {
 	to->i_uid = from->i_uid;
 	to->i_gid = from->i_gid;
+	to->i_mode = from->i_mode;
 }
 
 /* dir.c */
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/overlayfs/readdir.c linux-libre-4.4.107-gnu/fs/overlayfs/readdir.c
--- linux-libre-4.4-gnu/fs/overlayfs/readdir.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/overlayfs/readdir.c	2017-12-20 04:05:01.000000000 -0500
@@ -571,7 +571,8 @@ void ovl_cleanup_whiteouts(struct dentry
 			       (int) PTR_ERR(dentry));
 			continue;
 		}
-		ovl_cleanup(upper->d_inode, dentry);
+		if (dentry->d_inode)
+			ovl_cleanup(upper->d_inode, dentry);
 		dput(dentry);
 	}
 	mutex_unlock(&upper->d_inode->i_mutex);
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/overlayfs/super.c linux-libre-4.4.107-gnu/fs/overlayfs/super.c
--- linux-libre-4.4-gnu/fs/overlayfs/super.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/overlayfs/super.c	2017-12-20 04:05:01.000000000 -0500
@@ -9,6 +9,7 @@
 
 #include <linux/fs.h>
 #include <linux/namei.h>
+#include <linux/pagemap.h>
 #include <linux/xattr.h>
 #include <linux/security.h>
 #include <linux/mount.h>
@@ -75,12 +76,14 @@ enum ovl_path_type ovl_path_type(struct
 	if (oe->__upperdentry) {
 		type = __OVL_PATH_UPPER;
 
-		if (oe->numlower) {
-			if (S_ISDIR(dentry->d_inode->i_mode))
-				type |= __OVL_PATH_MERGE;
-		} else if (!oe->opaque) {
+		/*
+		 * Non-dir dentry can hold lower dentry from previous
+		 * location. Its purity depends only on opaque flag.
+		 */
+		if (oe->numlower && S_ISDIR(dentry->d_inode->i_mode))
+			type |= __OVL_PATH_MERGE;
+		else if (!oe->opaque)
 			type |= __OVL_PATH_PURE;
-		}
 	} else {
 		if (oe->numlower > 1)
 			type |= __OVL_PATH_MERGE;
@@ -273,6 +276,37 @@ static void ovl_dentry_release(struct de
 	}
 }
 
+static struct dentry *ovl_d_real(struct dentry *dentry, struct inode *inode)
+{
+	struct dentry *real;
+
+	if (d_is_dir(dentry)) {
+		if (!inode || inode == d_inode(dentry))
+			return dentry;
+		goto bug;
+	}
+
+	real = ovl_dentry_upper(dentry);
+	if (real && (!inode || inode == d_inode(real)))
+		return real;
+
+	real = ovl_dentry_lower(dentry);
+	if (!real)
+		goto bug;
+
+	if (!inode || inode == d_inode(real))
+		return real;
+
+	/* Handle recursion */
+	if (real->d_flags & DCACHE_OP_REAL)
+		return real->d_op->d_real(real, inode);
+
+bug:
+	WARN(1, "ovl_d_real(%pd4, %s:%lu\n): real dentry not found\n", dentry,
+	     inode ? inode->i_sb->s_id : "NULL", inode ? inode->i_ino : 0);
+	return dentry;
+}
+
 static int ovl_dentry_revalidate(struct dentry *dentry, unsigned int flags)
 {
 	struct ovl_entry *oe = dentry->d_fsdata;
@@ -317,10 +351,13 @@ static int ovl_dentry_weak_revalidate(st
 static const struct dentry_operations ovl_dentry_operations = {
 	.d_release = ovl_dentry_release,
 	.d_select_inode = ovl_d_select_inode,
+	.d_real = ovl_d_real,
 };
 
 static const struct dentry_operations ovl_reval_dentry_operations = {
 	.d_release = ovl_dentry_release,
+	.d_select_inode = ovl_d_select_inode,
+	.d_real = ovl_d_real,
 	.d_revalidate = ovl_dentry_revalidate,
 	.d_weak_revalidate = ovl_dentry_weak_revalidate,
 };
@@ -339,7 +376,8 @@ static struct ovl_entry *ovl_alloc_entry
 static bool ovl_dentry_remote(struct dentry *dentry)
 {
 	return dentry->d_flags &
-		(DCACHE_OP_REVALIDATE | DCACHE_OP_WEAK_REVALIDATE);
+		(DCACHE_OP_REVALIDATE | DCACHE_OP_WEAK_REVALIDATE |
+		 DCACHE_OP_REAL);
 }
 
 static bool ovl_dentry_weird(struct dentry *dentry)
@@ -725,6 +763,10 @@ retry:
 		struct kstat stat = {
 			.mode = S_IFDIR | 0,
 		};
+		struct iattr attr = {
+			.ia_valid = ATTR_MODE,
+			.ia_mode = stat.mode,
+		};
 
 		if (work->d_inode) {
 			err = -EEXIST;
@@ -740,6 +782,21 @@ retry:
 		err = ovl_create_real(dir, work, &stat, NULL, NULL, true);
 		if (err)
 			goto out_dput;
+
+		err = vfs_removexattr(work, XATTR_NAME_POSIX_ACL_DEFAULT);
+		if (err && err != -ENODATA && err != -EOPNOTSUPP)
+			goto out_dput;
+
+		err = vfs_removexattr(work, XATTR_NAME_POSIX_ACL_ACCESS);
+		if (err && err != -ENODATA && err != -EOPNOTSUPP)
+			goto out_dput;
+
+		/* Clear any inherited mode bits */
+		inode_lock(work->d_inode);
+		err = notify_change(work, &attr, NULL);
+		inode_unlock(work->d_inode);
+		if (err)
+			goto out_dput;
 	}
 out_unlock:
 	mutex_unlock(&dir->i_mutex);
@@ -910,6 +967,7 @@ static int ovl_fill_super(struct super_b
 	}
 
 	sb->s_stack_depth = 0;
+	sb->s_maxbytes = MAX_LFS_FILESIZE;
 	if (ufs->config.upperdir) {
 		if (!ufs->config.workdir) {
 			pr_err("overlayfs: missing 'workdir'\n");
@@ -1053,6 +1111,9 @@ static int ovl_fill_super(struct super_b
 
 	root_dentry->d_fsdata = oe;
 
+	ovl_copyattr(ovl_dentry_real(root_dentry)->d_inode,
+		     root_dentry->d_inode);
+
 	sb->s_magic = OVERLAYFS_SUPER_MAGIC;
 	sb->s_op = &ovl_super_operations;
 	sb->s_root = root_dentry;
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/pipe.c linux-libre-4.4.107-gnu/fs/pipe.c
--- linux-libre-4.4-gnu/fs/pipe.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/pipe.c	2017-12-20 04:05:01.000000000 -0500
@@ -38,6 +38,12 @@ unsigned int pipe_max_size = 1048576;
  */
 unsigned int pipe_min_size = PAGE_SIZE;
 
+/* Maximum allocatable pages per user. Hard limit is unset by default, soft
+ * matches default values.
+ */
+unsigned long pipe_user_pages_hard;
+unsigned long pipe_user_pages_soft = PIPE_DEF_BUFFERS * INR_OPEN_CUR;
+
 /*
  * We use a start+len construction, which provides full use of the 
  * allocated memory.
@@ -583,20 +589,49 @@ pipe_fasync(int fd, struct file *filp, i
 	return retval;
 }
 
+static void account_pipe_buffers(struct pipe_inode_info *pipe,
+                                 unsigned long old, unsigned long new)
+{
+	atomic_long_add(new - old, &pipe->user->pipe_bufs);
+}
+
+static bool too_many_pipe_buffers_soft(struct user_struct *user)
+{
+	return pipe_user_pages_soft &&
+	       atomic_long_read(&user->pipe_bufs) >= pipe_user_pages_soft;
+}
+
+static bool too_many_pipe_buffers_hard(struct user_struct *user)
+{
+	return pipe_user_pages_hard &&
+	       atomic_long_read(&user->pipe_bufs) >= pipe_user_pages_hard;
+}
+
 struct pipe_inode_info *alloc_pipe_info(void)
 {
 	struct pipe_inode_info *pipe;
 
 	pipe = kzalloc(sizeof(struct pipe_inode_info), GFP_KERNEL);
 	if (pipe) {
-		pipe->bufs = kzalloc(sizeof(struct pipe_buffer) * PIPE_DEF_BUFFERS, GFP_KERNEL);
+		unsigned long pipe_bufs = PIPE_DEF_BUFFERS;
+		struct user_struct *user = get_current_user();
+
+		if (!too_many_pipe_buffers_hard(user)) {
+			if (too_many_pipe_buffers_soft(user))
+				pipe_bufs = 1;
+			pipe->bufs = kzalloc(sizeof(struct pipe_buffer) * pipe_bufs, GFP_KERNEL);
+		}
+
 		if (pipe->bufs) {
 			init_waitqueue_head(&pipe->wait);
 			pipe->r_counter = pipe->w_counter = 1;
-			pipe->buffers = PIPE_DEF_BUFFERS;
+			pipe->buffers = pipe_bufs;
+			pipe->user = user;
+			account_pipe_buffers(pipe, 0, pipe_bufs);
 			mutex_init(&pipe->mutex);
 			return pipe;
 		}
+		free_uid(user);
 		kfree(pipe);
 	}
 
@@ -607,6 +642,8 @@ void free_pipe_info(struct pipe_inode_in
 {
 	int i;
 
+	account_pipe_buffers(pipe, pipe->buffers, 0);
+	free_uid(pipe->user);
 	for (i = 0; i < pipe->buffers; i++) {
 		struct pipe_buffer *buf = pipe->bufs + i;
 		if (buf->ops)
@@ -998,6 +1035,7 @@ static long pipe_set_size(struct pipe_in
 			memcpy(bufs + head, pipe->bufs, tail * sizeof(struct pipe_buffer));
 	}
 
+	account_pipe_buffers(pipe, pipe->buffers, nr_pages);
 	pipe->curbuf = 0;
 	kfree(pipe->bufs);
 	pipe->bufs = bufs;
@@ -1069,6 +1107,11 @@ long pipe_fcntl(struct file *file, unsig
 		if (!capable(CAP_SYS_RESOURCE) && size > pipe_max_size) {
 			ret = -EPERM;
 			goto out;
+		} else if ((too_many_pipe_buffers_hard(pipe->user) ||
+			    too_many_pipe_buffers_soft(pipe->user)) &&
+		           !capable(CAP_SYS_RESOURCE) && !capable(CAP_SYS_ADMIN)) {
+			ret = -EPERM;
+			goto out;
 		}
 		ret = pipe_set_size(pipe, nr_pages);
 		break;
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/pnode.c linux-libre-4.4.107-gnu/fs/pnode.c
--- linux-libre-4.4-gnu/fs/pnode.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/pnode.c	2017-12-20 04:05:01.000000000 -0500
@@ -24,6 +24,11 @@ static inline struct mount *first_slave(
 	return list_entry(p->mnt_slave_list.next, struct mount, mnt_slave);
 }
 
+static inline struct mount *last_slave(struct mount *p)
+{
+	return list_entry(p->mnt_slave_list.prev, struct mount, mnt_slave);
+}
+
 static inline struct mount *next_slave(struct mount *p)
 {
 	return list_entry(p->mnt_slave.next, struct mount, mnt_slave);
@@ -164,6 +169,19 @@ static struct mount *propagation_next(st
 	}
 }
 
+static struct mount *skip_propagation_subtree(struct mount *m,
+						struct mount *origin)
+{
+	/*
+	 * Advance m such that propagation_next will not return
+	 * the slaves of m.
+	 */
+	if (!IS_MNT_NEW(m) && !list_empty(&m->mnt_slave_list))
+		m = last_slave(m);
+
+	return m;
+}
+
 static struct mount *next_group(struct mount *m, struct mount *origin)
 {
 	while (1) {
@@ -198,10 +216,15 @@ static struct mount *next_group(struct m
 
 /* all accesses are serialized by namespace_sem */
 static struct user_namespace *user_ns;
-static struct mount *last_dest, *last_source, *dest_master;
+static struct mount *last_dest, *first_source, *last_source, *dest_master;
 static struct mountpoint *mp;
 static struct hlist_head *list;
 
+static inline bool peers(struct mount *m1, struct mount *m2)
+{
+	return m1->mnt_group_id == m2->mnt_group_id && m1->mnt_group_id;
+}
+
 static int propagate_one(struct mount *m)
 {
 	struct mount *child;
@@ -212,24 +235,26 @@ static int propagate_one(struct mount *m
 	/* skip if mountpoint isn't covered by it */
 	if (!is_subdir(mp->m_dentry, m->mnt.mnt_root))
 		return 0;
-	if (m->mnt_group_id == last_dest->mnt_group_id) {
+	if (peers(m, last_dest)) {
 		type = CL_MAKE_SHARED;
 	} else {
 		struct mount *n, *p;
+		bool done;
 		for (n = m; ; n = p) {
 			p = n->mnt_master;
-			if (p == dest_master || IS_MNT_MARKED(p)) {
-				while (last_dest->mnt_master != p) {
-					last_source = last_source->mnt_master;
-					last_dest = last_source->mnt_parent;
-				}
-				if (n->mnt_group_id != last_dest->mnt_group_id) {
-					last_source = last_source->mnt_master;
-					last_dest = last_source->mnt_parent;
-				}
+			if (p == dest_master || IS_MNT_MARKED(p))
 				break;
-			}
 		}
+		do {
+			struct mount *parent = last_source->mnt_parent;
+			if (last_source == first_source)
+				break;
+			done = parent->mnt_master == p;
+			if (done && peers(n, parent))
+				break;
+			last_source = last_source->mnt_master;
+		} while (!done);
+
 		type = CL_SLAVE;
 		/* beginning of peer group among the slaves? */
 		if (IS_MNT_SHARED(m))
@@ -252,7 +277,7 @@ static int propagate_one(struct mount *m
 		read_sequnlock_excl(&mount_lock);
 	}
 	hlist_add_head(&child->mnt_hash, list);
-	return 0;
+	return count_mounts(m->mnt_ns, child);
 }
 
 /*
@@ -281,6 +306,7 @@ int propagate_mnt(struct mount *dest_mnt
 	 */
 	user_ns = current->nsproxy->mnt_ns->user_ns;
 	last_dest = dest_mnt;
+	first_source = source_mnt;
 	last_source = source_mnt;
 	mp = dest_mp;
 	list = tree_list;
@@ -316,6 +342,21 @@ out:
 	return ret;
 }
 
+static struct mount *find_topper(struct mount *mnt)
+{
+	/* If there is exactly one mount covering mnt completely return it. */
+	struct mount *child;
+
+	if (!list_is_singular(&mnt->mnt_mounts))
+		return NULL;
+
+	child = list_first_entry(&mnt->mnt_mounts, struct mount, mnt_child);
+	if (child->mnt_mountpoint != mnt->mnt.mnt_root)
+		return NULL;
+
+	return child;
+}
+
 /*
  * return true if the refcount is greater than count
  */
@@ -336,9 +377,8 @@ static inline int do_refcount_check(stru
  */
 int propagate_mount_busy(struct mount *mnt, int refcnt)
 {
-	struct mount *m, *child;
+	struct mount *m, *child, *topper;
 	struct mount *parent = mnt->mnt_parent;
-	int ret = 0;
 
 	if (mnt == parent)
 		return do_refcount_check(mnt, refcnt);
@@ -353,12 +393,24 @@ int propagate_mount_busy(struct mount *m
 
 	for (m = propagation_next(parent, parent); m;
 	     		m = propagation_next(m, parent)) {
-		child = __lookup_mnt_last(&m->mnt, mnt->mnt_mountpoint);
-		if (child && list_empty(&child->mnt_mounts) &&
-		    (ret = do_refcount_check(child, 1)))
-			break;
+		int count = 1;
+		child = __lookup_mnt(&m->mnt, mnt->mnt_mountpoint);
+		if (!child)
+			continue;
+
+		/* Is there exactly one mount on the child that covers
+		 * it completely whose reference should be ignored?
+		 */
+		topper = find_topper(child);
+		if (topper)
+			count += 1;
+		else if (!list_empty(&child->mnt_mounts))
+			continue;
+
+		if (do_refcount_check(child, count))
+			return 1;
 	}
-	return ret;
+	return 0;
 }
 
 /*
@@ -375,60 +427,110 @@ void propagate_mount_unlock(struct mount
 
 	for (m = propagation_next(parent, parent); m;
 			m = propagation_next(m, parent)) {
-		child = __lookup_mnt_last(&m->mnt, mnt->mnt_mountpoint);
+		child = __lookup_mnt(&m->mnt, mnt->mnt_mountpoint);
 		if (child)
 			child->mnt.mnt_flags &= ~MNT_LOCKED;
 	}
 }
 
+static void umount_one(struct mount *mnt, struct list_head *to_umount)
+{
+	CLEAR_MNT_MARK(mnt);
+	mnt->mnt.mnt_flags |= MNT_UMOUNT;
+	list_del_init(&mnt->mnt_child);
+	list_del_init(&mnt->mnt_umounting);
+	list_move_tail(&mnt->mnt_list, to_umount);
+}
+
 /*
- * Mark all mounts that the MNT_LOCKED logic will allow to be unmounted.
+ * NOTE: unmounting 'mnt' naturally propagates to all other mounts its
+ * parent propagates to.
  */
-static void mark_umount_candidates(struct mount *mnt)
+static bool __propagate_umount(struct mount *mnt,
+			       struct list_head *to_umount,
+			       struct list_head *to_restore)
 {
-	struct mount *parent = mnt->mnt_parent;
-	struct mount *m;
+	bool progress = false;
+	struct mount *child;
 
-	BUG_ON(parent == mnt);
+	/*
+	 * The state of the parent won't change if this mount is
+	 * already unmounted or marked as without children.
+	 */
+	if (mnt->mnt.mnt_flags & (MNT_UMOUNT | MNT_MARKED))
+		goto out;
 
-	for (m = propagation_next(parent, parent); m;
-			m = propagation_next(m, parent)) {
-		struct mount *child = __lookup_mnt_last(&m->mnt,
-						mnt->mnt_mountpoint);
-		if (child && (!IS_MNT_LOCKED(child) || IS_MNT_MARKED(m))) {
-			SET_MNT_MARK(child);
-		}
+	/* Verify topper is the only grandchild that has not been
+	 * speculatively unmounted.
+	 */
+	list_for_each_entry(child, &mnt->mnt_mounts, mnt_child) {
+		if (child->mnt_mountpoint == mnt->mnt.mnt_root)
+			continue;
+		if (!list_empty(&child->mnt_umounting) && IS_MNT_MARKED(child))
+			continue;
+		/* Found a mounted child */
+		goto children;
 	}
+
+	/* Mark mounts that can be unmounted if not locked */
+	SET_MNT_MARK(mnt);
+	progress = true;
+
+	/* If a mount is without children and not locked umount it. */
+	if (!IS_MNT_LOCKED(mnt)) {
+		umount_one(mnt, to_umount);
+	} else {
+children:
+		list_move_tail(&mnt->mnt_umounting, to_restore);
+	}
+out:
+	return progress;
 }
 
-/*
- * NOTE: unmounting 'mnt' naturally propagates to all other mounts its
- * parent propagates to.
- */
-static void __propagate_umount(struct mount *mnt)
+static void umount_list(struct list_head *to_umount,
+			struct list_head *to_restore)
 {
-	struct mount *parent = mnt->mnt_parent;
-	struct mount *m;
+	struct mount *mnt, *child, *tmp;
+	list_for_each_entry(mnt, to_umount, mnt_list) {
+		list_for_each_entry_safe(child, tmp, &mnt->mnt_mounts, mnt_child) {
+			/* topper? */
+			if (child->mnt_mountpoint == mnt->mnt.mnt_root)
+				list_move_tail(&child->mnt_umounting, to_restore);
+			else
+				umount_one(child, to_umount);
+		}
+	}
+}
 
-	BUG_ON(parent == mnt);
+static void restore_mounts(struct list_head *to_restore)
+{
+	/* Restore mounts to a clean working state */
+	while (!list_empty(to_restore)) {
+		struct mount *mnt, *parent;
+		struct mountpoint *mp;
 
-	for (m = propagation_next(parent, parent); m;
-			m = propagation_next(m, parent)) {
+		mnt = list_first_entry(to_restore, struct mount, mnt_umounting);
+		CLEAR_MNT_MARK(mnt);
+		list_del_init(&mnt->mnt_umounting);
 
-		struct mount *child = __lookup_mnt_last(&m->mnt,
-						mnt->mnt_mountpoint);
-		/*
-		 * umount the child only if the child has no children
-		 * and the child is marked safe to unmount.
-		 */
-		if (!child || !IS_MNT_MARKED(child))
-			continue;
-		CLEAR_MNT_MARK(child);
-		if (list_empty(&child->mnt_mounts)) {
-			list_del_init(&child->mnt_child);
-			child->mnt.mnt_flags |= MNT_UMOUNT;
-			list_move_tail(&child->mnt_list, &mnt->mnt_list);
+		/* Should this mount be reparented? */
+		mp = mnt->mnt_mp;
+		parent = mnt->mnt_parent;
+		while (parent->mnt.mnt_flags & MNT_UMOUNT) {
+			mp = parent->mnt_mp;
+			parent = parent->mnt_parent;
 		}
+		if (parent != mnt->mnt_parent)
+			mnt_change_mountpoint(parent, mp, mnt);
+	}
+}
+
+static void cleanup_umount_visitations(struct list_head *visited)
+{
+	while (!list_empty(visited)) {
+		struct mount *mnt =
+			list_first_entry(visited, struct mount, mnt_umounting);
+		list_del_init(&mnt->mnt_umounting);
 	}
 }
 
@@ -442,11 +544,68 @@ static void __propagate_umount(struct mo
 int propagate_umount(struct list_head *list)
 {
 	struct mount *mnt;
+	LIST_HEAD(to_restore);
+	LIST_HEAD(to_umount);
+	LIST_HEAD(visited);
 
-	list_for_each_entry_reverse(mnt, list, mnt_list)
-		mark_umount_candidates(mnt);
+	/* Find candidates for unmounting */
+	list_for_each_entry_reverse(mnt, list, mnt_list) {
+		struct mount *parent = mnt->mnt_parent;
+		struct mount *m;
+
+		/*
+		 * If this mount has already been visited it is known that it's
+		 * entire peer group and all of their slaves in the propagation
+		 * tree for the mountpoint has already been visited and there is
+		 * no need to visit them again.
+		 */
+		if (!list_empty(&mnt->mnt_umounting))
+			continue;
+
+		list_add_tail(&mnt->mnt_umounting, &visited);
+		for (m = propagation_next(parent, parent); m;
+		     m = propagation_next(m, parent)) {
+			struct mount *child = __lookup_mnt(&m->mnt,
+							   mnt->mnt_mountpoint);
+			if (!child)
+				continue;
+
+			if (!list_empty(&child->mnt_umounting)) {
+				/*
+				 * If the child has already been visited it is
+				 * know that it's entire peer group and all of
+				 * their slaves in the propgation tree for the
+				 * mountpoint has already been visited and there
+				 * is no need to visit this subtree again.
+				 */
+				m = skip_propagation_subtree(m, parent);
+				continue;
+			} else if (child->mnt.mnt_flags & MNT_UMOUNT) {
+				/*
+				 * We have come accross an partially unmounted
+				 * mount in list that has not been visited yet.
+				 * Remember it has been visited and continue
+				 * about our merry way.
+				 */
+				list_add_tail(&child->mnt_umounting, &visited);
+				continue;
+			}
+
+			/* Check the child and parents while progress is made */
+			while (__propagate_umount(child,
+						  &to_umount, &to_restore)) {
+				/* Is the parent a umount candidate? */
+				child = child->mnt_parent;
+				if (list_empty(&child->mnt_umounting))
+					break;
+			}
+		}
+	}
+
+	umount_list(&to_umount, &to_restore);
+	restore_mounts(&to_restore);
+	cleanup_umount_visitations(&visited);
+	list_splice_tail(&to_umount, list);
 
-	list_for_each_entry(mnt, list, mnt_list)
-		__propagate_umount(mnt);
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/pnode.h linux-libre-4.4.107-gnu/fs/pnode.h
--- linux-libre-4.4-gnu/fs/pnode.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/pnode.h	2017-12-20 04:05:01.000000000 -0500
@@ -49,7 +49,10 @@ int get_dominating_id(struct mount *mnt,
 unsigned int mnt_get_count(struct mount *mnt);
 void mnt_set_mountpoint(struct mount *, struct mountpoint *,
 			struct mount *);
+void mnt_change_mountpoint(struct mount *parent, struct mountpoint *mp,
+			   struct mount *mnt);
 struct mount *copy_tree(struct mount *, struct dentry *, int);
 bool is_path_reachable(struct mount *, struct dentry *,
 			 const struct path *root);
+int count_mounts(struct mnt_namespace *ns, struct mount *mnt);
 #endif /* _LINUX_PNODE_H */
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/posix_acl.c linux-libre-4.4.107-gnu/fs/posix_acl.c
--- linux-libre-4.4-gnu/fs/posix_acl.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/posix_acl.c	2017-12-20 04:05:01.000000000 -0500
@@ -592,6 +592,37 @@ no_mem:
 }
 EXPORT_SYMBOL_GPL(posix_acl_create);
 
+/**
+ * posix_acl_update_mode  -  update mode in set_acl
+ *
+ * Update the file mode when setting an ACL: compute the new file permission
+ * bits based on the ACL.  In addition, if the ACL is equivalent to the new
+ * file mode, set *acl to NULL to indicate that no ACL should be set.
+ *
+ * As with chmod, clear the setgit bit if the caller is not in the owning group
+ * or capable of CAP_FSETID (see inode_change_ok).
+ *
+ * Called from set_acl inode operations.
+ */
+int posix_acl_update_mode(struct inode *inode, umode_t *mode_p,
+			  struct posix_acl **acl)
+{
+	umode_t mode = inode->i_mode;
+	int error;
+
+	error = posix_acl_equiv_mode(*acl, &mode);
+	if (error < 0)
+		return error;
+	if (error == 0)
+		*acl = NULL;
+	if (!in_group_p(inode->i_gid) &&
+	    !capable_wrt_inode_uidgid(inode, CAP_FSETID))
+		mode &= ~S_ISGID;
+	*mode_p = mode;
+	return 0;
+}
+EXPORT_SYMBOL(posix_acl_update_mode);
+
 /*
  * Fix up the uids and gids in posix acl extended attributes in place.
  */
@@ -788,6 +819,28 @@ posix_acl_xattr_get(const struct xattr_h
 	return error;
 }
 
+int
+set_posix_acl(struct inode *inode, int type, struct posix_acl *acl)
+{
+	if (!IS_POSIXACL(inode))
+		return -EOPNOTSUPP;
+	if (!inode->i_op->set_acl)
+		return -EOPNOTSUPP;
+
+	if (type == ACL_TYPE_DEFAULT && !S_ISDIR(inode->i_mode))
+		return acl ? -EACCES : 0;
+	if (!inode_owner_or_capable(inode))
+		return -EPERM;
+
+	if (acl) {
+		int ret = posix_acl_valid(acl);
+		if (ret)
+			return ret;
+	}
+	return inode->i_op->set_acl(inode, acl, type);
+}
+EXPORT_SYMBOL(set_posix_acl);
+
 static int
 posix_acl_xattr_set(const struct xattr_handler *handler,
 		    struct dentry *dentry, const char *name,
@@ -799,30 +852,13 @@ posix_acl_xattr_set(const struct xattr_h
 
 	if (strcmp(name, "") != 0)
 		return -EINVAL;
-	if (!IS_POSIXACL(inode))
-		return -EOPNOTSUPP;
-	if (!inode->i_op->set_acl)
-		return -EOPNOTSUPP;
-
-	if (handler->flags == ACL_TYPE_DEFAULT && !S_ISDIR(inode->i_mode))
-		return value ? -EACCES : 0;
-	if (!inode_owner_or_capable(inode))
-		return -EPERM;
 
 	if (value) {
 		acl = posix_acl_from_xattr(&init_user_ns, value, size);
 		if (IS_ERR(acl))
 			return PTR_ERR(acl);
-
-		if (acl) {
-			ret = posix_acl_valid(acl);
-			if (ret)
-				goto out;
-		}
 	}
-
-	ret = inode->i_op->set_acl(inode, acl, handler->flags);
-out:
+	ret = set_posix_acl(inode, handler->flags, acl);
 	posix_acl_release(acl);
 	return ret;
 }
@@ -867,11 +903,10 @@ int simple_set_acl(struct inode *inode,
 	int error;
 
 	if (type == ACL_TYPE_ACCESS) {
-		error = posix_acl_equiv_mode(acl, &inode->i_mode);
-		if (error < 0)
-			return 0;
-		if (error == 0)
-			acl = NULL;
+		error = posix_acl_update_mode(inode,
+				&inode->i_mode, &acl);
+		if (error)
+			return error;
 	}
 
 	inode->i_ctime = CURRENT_TIME;
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/proc/array.c linux-libre-4.4.107-gnu/fs/proc/array.c
--- linux-libre-4.4-gnu/fs/proc/array.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/proc/array.c	2017-12-20 04:05:01.000000000 -0500
@@ -395,7 +395,7 @@ static int do_task_stat(struct seq_file
 
 	state = *get_task_state(task);
 	vsize = eip = esp = 0;
-	permitted = ptrace_may_access(task, PTRACE_MODE_READ | PTRACE_MODE_NOAUDIT);
+	permitted = ptrace_may_access(task, PTRACE_MODE_READ_FSCREDS | PTRACE_MODE_NOAUDIT);
 	mm = get_task_mm(task);
 	if (mm) {
 		vsize = task_vsize(mm);
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/proc/base.c linux-libre-4.4.107-gnu/fs/proc/base.c
--- linux-libre-4.4-gnu/fs/proc/base.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/proc/base.c	2017-12-20 04:05:01.000000000 -0500
@@ -403,7 +403,7 @@ static const struct file_operations proc
 static int proc_pid_auxv(struct seq_file *m, struct pid_namespace *ns,
 			 struct pid *pid, struct task_struct *task)
 {
-	struct mm_struct *mm = mm_access(task, PTRACE_MODE_READ);
+	struct mm_struct *mm = mm_access(task, PTRACE_MODE_READ_FSCREDS);
 	if (mm && !IS_ERR(mm)) {
 		unsigned int nwords = 0;
 		do {
@@ -430,7 +430,8 @@ static int proc_pid_wchan(struct seq_fil
 
 	wchan = get_wchan(task);
 
-	if (wchan && ptrace_may_access(task, PTRACE_MODE_READ) && !lookup_symbol_name(wchan, symname))
+	if (wchan && ptrace_may_access(task, PTRACE_MODE_READ_FSCREDS)
+			&& !lookup_symbol_name(wchan, symname))
 		seq_printf(m, "%s", symname);
 	else
 		seq_putc(m, '0');
@@ -444,7 +445,7 @@ static int lock_trace(struct task_struct
 	int err = mutex_lock_killable(&task->signal->cred_guard_mutex);
 	if (err)
 		return err;
-	if (!ptrace_may_access(task, PTRACE_MODE_ATTACH)) {
+	if (!ptrace_may_access(task, PTRACE_MODE_ATTACH_FSCREDS)) {
 		mutex_unlock(&task->signal->cred_guard_mutex);
 		return -EPERM;
 	}
@@ -697,7 +698,7 @@ static int proc_fd_access_allowed(struct
 	 */
 	task = get_proc_task(inode);
 	if (task) {
-		allowed = ptrace_may_access(task, PTRACE_MODE_READ);
+		allowed = ptrace_may_access(task, PTRACE_MODE_READ_FSCREDS);
 		put_task_struct(task);
 	}
 	return allowed;
@@ -732,7 +733,7 @@ static bool has_pid_permissions(struct p
 		return true;
 	if (in_group_p(pid->pid_gid))
 		return true;
-	return ptrace_may_access(task, PTRACE_MODE_READ);
+	return ptrace_may_access(task, PTRACE_MODE_READ_FSCREDS);
 }
 
 
@@ -809,7 +810,7 @@ struct mm_struct *proc_mem_open(struct i
 	struct mm_struct *mm = ERR_PTR(-ESRCH);
 
 	if (task) {
-		mm = mm_access(task, mode);
+		mm = mm_access(task, mode | PTRACE_MODE_FSCREDS);
 		put_task_struct(task);
 
 		if (!IS_ERR_OR_NULL(mm)) {
@@ -953,7 +954,8 @@ static ssize_t environ_read(struct file
 	int ret = 0;
 	struct mm_struct *mm = file->private_data;
 
-	if (!mm)
+	/* Ensure the process spawned far enough to have an environment. */
+	if (!mm || !mm->env_end)
 		return 0;
 
 	page = (char *)__get_free_page(GFP_TEMPORARY);
@@ -1543,18 +1545,13 @@ static const struct file_operations proc
 static int proc_exe_link(struct dentry *dentry, struct path *exe_path)
 {
 	struct task_struct *task;
-	struct mm_struct *mm;
 	struct file *exe_file;
 
 	task = get_proc_task(d_inode(dentry));
 	if (!task)
 		return -ENOENT;
-	mm = get_task_mm(task);
+	exe_file = get_task_exe_file(task);
 	put_task_struct(task);
-	if (!mm)
-		return -ENOENT;
-	exe_file = get_mm_exe_file(mm);
-	mmput(mm);
 	if (exe_file) {
 		*exe_path = exe_file->f_path;
 		path_get(&exe_file->f_path);
@@ -1856,7 +1853,7 @@ static int map_files_d_revalidate(struct
 	if (!task)
 		goto out_notask;
 
-	mm = mm_access(task, PTRACE_MODE_READ);
+	mm = mm_access(task, PTRACE_MODE_READ_FSCREDS);
 	if (IS_ERR_OR_NULL(mm))
 		goto out;
 
@@ -2007,7 +2004,7 @@ static struct dentry *proc_map_files_loo
 		goto out;
 
 	result = -EACCES;
-	if (!ptrace_may_access(task, PTRACE_MODE_READ))
+	if (!ptrace_may_access(task, PTRACE_MODE_READ_FSCREDS))
 		goto out_put_task;
 
 	result = -ENOENT;
@@ -2060,7 +2057,7 @@ proc_map_files_readdir(struct file *file
 		goto out;
 
 	ret = -EACCES;
-	if (!ptrace_may_access(task, PTRACE_MODE_READ))
+	if (!ptrace_may_access(task, PTRACE_MODE_READ_FSCREDS))
 		goto out_put_task;
 
 	ret = 0;
@@ -2530,7 +2527,7 @@ static int do_io_accounting(struct task_
 	if (result)
 		return result;
 
-	if (!ptrace_may_access(task, PTRACE_MODE_READ)) {
+	if (!ptrace_may_access(task, PTRACE_MODE_READ_FSCREDS)) {
 		result = -EACCES;
 		goto out_unlock;
 	}
@@ -3061,6 +3058,8 @@ int proc_pid_readdir(struct file *file,
 	     iter.tgid += 1, iter = next_tgid(ns, iter)) {
 		char name[PROC_NUMBUF];
 		int len;
+
+		cond_resched();
 		if (!has_pid_permissions(ns, iter.task, 2))
 			continue;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/proc/generic.c linux-libre-4.4.107-gnu/fs/proc/generic.c
--- linux-libre-4.4-gnu/fs/proc/generic.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/proc/generic.c	2017-12-20 04:05:01.000000000 -0500
@@ -469,6 +469,7 @@ struct proc_dir_entry *proc_create_mount
 		ent->data = NULL;
 		ent->proc_fops = NULL;
 		ent->proc_iops = NULL;
+		parent->nlink++;
 		if (proc_register(parent, ent) < 0) {
 			kfree(ent);
 			parent->nlink--;
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/proc/namespaces.c linux-libre-4.4.107-gnu/fs/proc/namespaces.c
--- linux-libre-4.4-gnu/fs/proc/namespaces.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/proc/namespaces.c	2017-12-20 04:05:01.000000000 -0500
@@ -42,7 +42,7 @@ static const char *proc_ns_follow_link(s
 	if (!task)
 		return error;
 
-	if (ptrace_may_access(task, PTRACE_MODE_READ)) {
+	if (ptrace_may_access(task, PTRACE_MODE_READ_FSCREDS)) {
 		error = ns_get_path(&ns_path, task, ns_ops);
 		if (!error)
 			nd_jump_link(&ns_path);
@@ -63,7 +63,7 @@ static int proc_ns_readlink(struct dentr
 	if (!task)
 		return res;
 
-	if (ptrace_may_access(task, PTRACE_MODE_READ)) {
+	if (ptrace_may_access(task, PTRACE_MODE_READ_FSCREDS)) {
 		res = ns_get_name(name, sizeof(name), task, ns_ops);
 		if (res >= 0)
 			res = readlink_copy(buffer, buflen, name);
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/proc/proc_sysctl.c linux-libre-4.4.107-gnu/fs/proc/proc_sysctl.c
--- linux-libre-4.4-gnu/fs/proc/proc_sysctl.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/proc/proc_sysctl.c	2017-12-20 04:05:01.000000000 -0500
@@ -703,7 +703,7 @@ static int proc_sys_readdir(struct file
 	ctl_dir = container_of(head, struct ctl_dir, header);
 
 	if (!dir_emit_dots(file, ctx))
-		return 0;
+		goto out;
 
 	pos = 2;
 
@@ -713,6 +713,7 @@ static int proc_sys_readdir(struct file
 			break;
 		}
 	}
+out:
 	sysctl_head_finish(head);
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/proc/proc_tty.c linux-libre-4.4.107-gnu/fs/proc/proc_tty.c
--- linux-libre-4.4-gnu/fs/proc/proc_tty.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/proc/proc_tty.c	2017-12-20 04:05:01.000000000 -0500
@@ -14,6 +14,7 @@
 #include <linux/tty.h>
 #include <linux/seq_file.h>
 #include <linux/bitops.h>
+#include "internal.h"
 
 /*
  * The /proc/tty directory inodes...
@@ -164,7 +165,7 @@ void proc_tty_unregister_driver(struct t
 	if (!ent)
 		return;
 		
-	remove_proc_entry(driver->driver_name, proc_tty_driver);
+	remove_proc_entry(ent->name, proc_tty_driver);
 	
 	driver->proc_entry = NULL;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/proc/root.c linux-libre-4.4.107-gnu/fs/proc/root.c
--- linux-libre-4.4-gnu/fs/proc/root.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/proc/root.c	2017-12-20 04:05:01.000000000 -0500
@@ -121,6 +121,13 @@ static struct dentry *proc_mount(struct
 	if (IS_ERR(sb))
 		return ERR_CAST(sb);
 
+	/*
+	 * procfs isn't actually a stacking filesystem; however, there is
+	 * too much magic going on inside it to permit stacking things on
+	 * top of it
+	 */
+	sb->s_stack_depth = FILESYSTEM_MAX_STACK_DEPTH;
+
 	if (!proc_parse_options(options, ns)) {
 		deactivate_locked_super(sb);
 		return ERR_PTR(-EINVAL);
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/proc/task_mmu.c linux-libre-4.4.107-gnu/fs/proc/task_mmu.c
--- linux-libre-4.4-gnu/fs/proc/task_mmu.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/proc/task_mmu.c	2017-12-20 04:05:01.000000000 -0500
@@ -248,23 +248,29 @@ static int do_maps_open(struct inode *in
 				sizeof(struct proc_maps_private));
 }
 
-static pid_t pid_of_stack(struct proc_maps_private *priv,
-				struct vm_area_struct *vma, bool is_pid)
+/*
+ * Indicate if the VMA is a stack for the given task; for
+ * /proc/PID/maps that is the stack of the main task.
+ */
+static int is_stack(struct proc_maps_private *priv,
+		    struct vm_area_struct *vma, int is_pid)
 {
-	struct inode *inode = priv->inode;
-	struct task_struct *task;
-	pid_t ret = 0;
+	int stack = 0;
 
-	rcu_read_lock();
-	task = pid_task(proc_pid(inode), PIDTYPE_PID);
-	if (task) {
-		task = task_of_stack(task, vma, is_pid);
+	if (is_pid) {
+		stack = vma->vm_start <= vma->vm_mm->start_stack &&
+			vma->vm_end >= vma->vm_mm->start_stack;
+	} else {
+		struct inode *inode = priv->inode;
+		struct task_struct *task;
+
+		rcu_read_lock();
+		task = pid_task(proc_pid(inode), PIDTYPE_PID);
 		if (task)
-			ret = task_pid_nr_ns(task, inode->i_sb->s_fs_info);
+			stack = vma_is_stack_for_task(vma, task);
+		rcu_read_unlock();
 	}
-	rcu_read_unlock();
-
-	return ret;
+	return stack;
 }
 
 static void
@@ -289,11 +295,7 @@ show_map_vma(struct seq_file *m, struct
 
 	/* We don't show the stack guard page in /proc/maps */
 	start = vma->vm_start;
-	if (stack_guard_page_start(vma, start))
-		start += PAGE_SIZE;
 	end = vma->vm_end;
-	if (stack_guard_page_end(vma, end))
-		end -= PAGE_SIZE;
 
 	seq_setwidth(m, 25 + sizeof(void *) * 6 - 1);
 	seq_printf(m, "%08lx-%08lx %c%c%c%c %08llx %02x:%02x %lu ",
@@ -324,8 +326,6 @@ show_map_vma(struct seq_file *m, struct
 
 	name = arch_vma_name(vma);
 	if (!name) {
-		pid_t tid;
-
 		if (!mm) {
 			name = "[vdso]";
 			goto done;
@@ -337,21 +337,8 @@ show_map_vma(struct seq_file *m, struct
 			goto done;
 		}
 
-		tid = pid_of_stack(priv, vma, is_pid);
-		if (tid != 0) {
-			/*
-			 * Thread stack in /proc/PID/task/TID/maps or
-			 * the main process stack.
-			 */
-			if (!is_pid || (vma->vm_start <= mm->start_stack &&
-			    vma->vm_end >= mm->start_stack)) {
-				name = "[stack]";
-			} else {
-				/* Thread stack in /proc/PID/maps */
-				seq_pad(m, ' ');
-				seq_printf(m, "[stack:%d]", tid);
-			}
-		}
+		if (is_stack(priv, vma, is_pid))
+			name = "[stack]";
 	}
 
 done:
@@ -812,7 +799,14 @@ static inline void clear_soft_dirty(stru
 static inline void clear_soft_dirty_pmd(struct vm_area_struct *vma,
 		unsigned long addr, pmd_t *pmdp)
 {
-	pmd_t pmd = pmdp_huge_get_and_clear(vma->vm_mm, addr, pmdp);
+	pmd_t pmd = *pmdp;
+
+	/* See comment in change_huge_pmd() */
+	pmdp_invalidate(vma, addr, pmdp);
+	if (pmd_dirty(*pmdp))
+		pmd = pmd_mkdirty(pmd);
+	if (pmd_young(*pmdp))
+		pmd = pmd_mkyoung(pmd);
 
 	pmd = pmd_wrprotect(pmd);
 	pmd = pmd_clear_soft_dirty(pmd);
@@ -1435,6 +1429,32 @@ static struct page *can_gather_numa_stat
 	return page;
 }
 
+#ifdef CONFIG_TRANSPARENT_HUGEPAGE
+static struct page *can_gather_numa_stats_pmd(pmd_t pmd,
+					      struct vm_area_struct *vma,
+					      unsigned long addr)
+{
+	struct page *page;
+	int nid;
+
+	if (!pmd_present(pmd))
+		return NULL;
+
+	page = vm_normal_page_pmd(vma, addr, pmd);
+	if (!page)
+		return NULL;
+
+	if (PageReserved(page))
+		return NULL;
+
+	nid = page_to_nid(page);
+	if (!node_isset(nid, node_states[N_MEMORY]))
+		return NULL;
+
+	return page;
+}
+#endif
+
 static int gather_pte_stats(pmd_t *pmd, unsigned long addr,
 		unsigned long end, struct mm_walk *walk)
 {
@@ -1444,13 +1464,13 @@ static int gather_pte_stats(pmd_t *pmd,
 	pte_t *orig_pte;
 	pte_t *pte;
 
+#ifdef CONFIG_TRANSPARENT_HUGEPAGE
 	if (pmd_trans_huge_lock(pmd, vma, &ptl) == 1) {
-		pte_t huge_pte = *(pte_t *)pmd;
 		struct page *page;
 
-		page = can_gather_numa_stats(huge_pte, vma, addr);
+		page = can_gather_numa_stats_pmd(*pmd, vma, addr);
 		if (page)
-			gather_stats(page, md, pte_dirty(huge_pte),
+			gather_stats(page, md, pmd_dirty(*pmd),
 				     HPAGE_PMD_SIZE/PAGE_SIZE);
 		spin_unlock(ptl);
 		return 0;
@@ -1458,6 +1478,7 @@ static int gather_pte_stats(pmd_t *pmd,
 
 	if (pmd_trans_unstable(pmd))
 		return 0;
+#endif
 	orig_pte = pte = pte_offset_map_lock(walk->mm, pmd, addr, &ptl);
 	do {
 		struct page *page = can_gather_numa_stats(*pte, vma, addr);
@@ -1473,18 +1494,19 @@ static int gather_pte_stats(pmd_t *pmd,
 static int gather_hugetlb_stats(pte_t *pte, unsigned long hmask,
 		unsigned long addr, unsigned long end, struct mm_walk *walk)
 {
+	pte_t huge_pte = huge_ptep_get(pte);
 	struct numa_maps *md;
 	struct page *page;
 
-	if (!pte_present(*pte))
+	if (!pte_present(huge_pte))
 		return 0;
 
-	page = pte_page(*pte);
+	page = pte_page(huge_pte);
 	if (!page)
 		return 0;
 
 	md = walk->private;
-	gather_stats(page, md, pte_dirty(*pte), 1);
+	gather_stats(page, md, pte_dirty(huge_pte), 1);
 	return 0;
 }
 
@@ -1538,19 +1560,8 @@ static int show_numa_map(struct seq_file
 		seq_file_path(m, file, "\n\t= ");
 	} else if (vma->vm_start <= mm->brk && vma->vm_end >= mm->start_brk) {
 		seq_puts(m, " heap");
-	} else {
-		pid_t tid = pid_of_stack(proc_priv, vma, is_pid);
-		if (tid != 0) {
-			/*
-			 * Thread stack in /proc/PID/task/TID/maps or
-			 * the main process stack.
-			 */
-			if (!is_pid || (vma->vm_start <= mm->start_stack &&
-			    vma->vm_end >= mm->start_stack))
-				seq_puts(m, " stack");
-			else
-				seq_printf(m, " stack:%d", tid);
-		}
+	} else if (is_stack(proc_priv, vma, is_pid)) {
+		seq_puts(m, " stack");
 	}
 
 	if (is_vm_hugetlb_page(vma))
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/proc/task_nommu.c linux-libre-4.4.107-gnu/fs/proc/task_nommu.c
--- linux-libre-4.4-gnu/fs/proc/task_nommu.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/proc/task_nommu.c	2017-12-20 04:05:01.000000000 -0500
@@ -123,23 +123,26 @@ unsigned long task_statm(struct mm_struc
 	return size;
 }
 
-static pid_t pid_of_stack(struct proc_maps_private *priv,
-				struct vm_area_struct *vma, bool is_pid)
+static int is_stack(struct proc_maps_private *priv,
+		    struct vm_area_struct *vma, int is_pid)
 {
-	struct inode *inode = priv->inode;
-	struct task_struct *task;
-	pid_t ret = 0;
+	struct mm_struct *mm = vma->vm_mm;
+	int stack = 0;
 
-	rcu_read_lock();
-	task = pid_task(proc_pid(inode), PIDTYPE_PID);
-	if (task) {
-		task = task_of_stack(task, vma, is_pid);
+	if (is_pid) {
+		stack = vma->vm_start <= mm->start_stack &&
+			vma->vm_end >= mm->start_stack;
+	} else {
+		struct inode *inode = priv->inode;
+		struct task_struct *task;
+
+		rcu_read_lock();
+		task = pid_task(proc_pid(inode), PIDTYPE_PID);
 		if (task)
-			ret = task_pid_nr_ns(task, inode->i_sb->s_fs_info);
+			stack = vma_is_stack_for_task(vma, task);
+		rcu_read_unlock();
 	}
-	rcu_read_unlock();
-
-	return ret;
+	return stack;
 }
 
 /*
@@ -181,21 +184,9 @@ static int nommu_vma_show(struct seq_fil
 	if (file) {
 		seq_pad(m, ' ');
 		seq_file_path(m, file, "");
-	} else if (mm) {
-		pid_t tid = pid_of_stack(priv, vma, is_pid);
-
-		if (tid != 0) {
-			seq_pad(m, ' ');
-			/*
-			 * Thread stack in /proc/PID/task/TID/maps or
-			 * the main process stack.
-			 */
-			if (!is_pid || (vma->vm_start <= mm->start_stack &&
-			    vma->vm_end >= mm->start_stack))
-				seq_printf(m, "[stack]");
-			else
-				seq_printf(m, "[stack:%d]", tid);
-		}
+	} else if (mm && is_stack(priv, vma, is_pid)) {
+		seq_pad(m, ' ');
+		seq_printf(m, "[stack]");
 	}
 
 	seq_putc(m, '\n');
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/proc_namespace.c linux-libre-4.4.107-gnu/fs/proc_namespace.c
--- linux-libre-4.4-gnu/fs/proc_namespace.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/proc_namespace.c	2017-12-20 04:05:01.000000000 -0500
@@ -197,6 +197,8 @@ static int show_vfsstat(struct seq_file
 	if (sb->s_op->show_devname) {
 		seq_puts(m, "device ");
 		err = sb->s_op->show_devname(m, mnt_path.dentry);
+		if (err)
+			goto out;
 	} else {
 		if (r->mnt_devname) {
 			seq_puts(m, "device ");
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/pstore/inode.c linux-libre-4.4.107-gnu/fs/pstore/inode.c
--- linux-libre-4.4-gnu/fs/pstore/inode.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/pstore/inode.c	2017-12-20 04:05:01.000000000 -0500
@@ -178,7 +178,6 @@ static loff_t pstore_file_llseek(struct
 }
 
 static const struct file_operations pstore_file_operations = {
-	.owner		= THIS_MODULE,
 	.open		= pstore_file_open,
 	.read		= pstore_file_read,
 	.llseek		= pstore_file_llseek,
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/pstore/ram.c linux-libre-4.4.107-gnu/fs/pstore/ram.c
--- linux-libre-4.4-gnu/fs/pstore/ram.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/pstore/ram.c	2017-12-20 04:05:01.000000000 -0500
@@ -375,13 +375,14 @@ static void ramoops_free_przs(struct ram
 {
 	int i;
 
-	cxt->max_dump_cnt = 0;
 	if (!cxt->przs)
 		return;
 
-	for (i = 0; !IS_ERR_OR_NULL(cxt->przs[i]); i++)
+	for (i = 0; i < cxt->max_dump_cnt; i++)
 		persistent_ram_free(cxt->przs[i]);
+
 	kfree(cxt->przs);
+	cxt->max_dump_cnt = 0;
 }
 
 static int ramoops_init_przs(struct device *dev, struct ramoops_context *cxt,
@@ -406,17 +407,22 @@ static int ramoops_init_przs(struct devi
 			     GFP_KERNEL);
 	if (!cxt->przs) {
 		dev_err(dev, "failed to initialize a prz array for dumps\n");
-		goto fail_prz;
+		goto fail_mem;
 	}
 
 	for (i = 0; i < cxt->max_dump_cnt; i++) {
 		cxt->przs[i] = persistent_ram_new(*paddr, cxt->record_size, 0,
 						  &cxt->ecc_info,
-						  cxt->memtype);
+						  cxt->memtype, 0);
 		if (IS_ERR(cxt->przs[i])) {
 			err = PTR_ERR(cxt->przs[i]);
 			dev_err(dev, "failed to request mem region (0x%zx@0x%llx): %d\n",
 				cxt->record_size, (unsigned long long)*paddr, err);
+
+			while (i > 0) {
+				i--;
+				persistent_ram_free(cxt->przs[i]);
+			}
 			goto fail_prz;
 		}
 		*paddr += cxt->record_size;
@@ -424,7 +430,9 @@ static int ramoops_init_przs(struct devi
 
 	return 0;
 fail_prz:
-	ramoops_free_przs(cxt);
+	kfree(cxt->przs);
+fail_mem:
+	cxt->max_dump_cnt = 0;
 	return err;
 }
 
@@ -442,7 +450,8 @@ static int ramoops_init_prz(struct devic
 		return -ENOMEM;
 	}
 
-	*prz = persistent_ram_new(*paddr, sz, sig, &cxt->ecc_info, cxt->memtype);
+	*prz = persistent_ram_new(*paddr, sz, sig, &cxt->ecc_info,
+				  cxt->memtype, 0);
 	if (IS_ERR(*prz)) {
 		int err = PTR_ERR(*prz);
 
@@ -583,7 +592,6 @@ static int ramoops_remove(struct platfor
 	struct ramoops_context *cxt = &oops_cxt;
 
 	pstore_unregister(&cxt->pstore);
-	cxt->max_dump_cnt = 0;
 
 	kfree(cxt->pstore.buf);
 	cxt->pstore.bufsize = 0;
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/pstore/ram_core.c linux-libre-4.4.107-gnu/fs/pstore/ram_core.c
--- linux-libre-4.4-gnu/fs/pstore/ram_core.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/pstore/ram_core.c	2017-12-20 04:05:01.000000000 -0500
@@ -48,48 +48,14 @@ static inline size_t buffer_start(struct
 }
 
 /* increase and wrap the start pointer, returning the old value */
-static size_t buffer_start_add_atomic(struct persistent_ram_zone *prz, size_t a)
-{
-	int old;
-	int new;
-
-	do {
-		old = atomic_read(&prz->buffer->start);
-		new = old + a;
-		while (unlikely(new >= prz->buffer_size))
-			new -= prz->buffer_size;
-	} while (atomic_cmpxchg(&prz->buffer->start, old, new) != old);
-
-	return old;
-}
-
-/* increase the size counter until it hits the max size */
-static void buffer_size_add_atomic(struct persistent_ram_zone *prz, size_t a)
-{
-	size_t old;
-	size_t new;
-
-	if (atomic_read(&prz->buffer->size) == prz->buffer_size)
-		return;
-
-	do {
-		old = atomic_read(&prz->buffer->size);
-		new = old + a;
-		if (new > prz->buffer_size)
-			new = prz->buffer_size;
-	} while (atomic_cmpxchg(&prz->buffer->size, old, new) != old);
-}
-
-static DEFINE_RAW_SPINLOCK(buffer_lock);
-
-/* increase and wrap the start pointer, returning the old value */
-static size_t buffer_start_add_locked(struct persistent_ram_zone *prz, size_t a)
+static size_t buffer_start_add(struct persistent_ram_zone *prz, size_t a)
 {
 	int old;
 	int new;
-	unsigned long flags;
+	unsigned long flags = 0;
 
-	raw_spin_lock_irqsave(&buffer_lock, flags);
+	if (!(prz->flags & PRZ_FLAG_NO_LOCK))
+		raw_spin_lock_irqsave(&prz->buffer_lock, flags);
 
 	old = atomic_read(&prz->buffer->start);
 	new = old + a;
@@ -97,19 +63,21 @@ static size_t buffer_start_add_locked(st
 		new -= prz->buffer_size;
 	atomic_set(&prz->buffer->start, new);
 
-	raw_spin_unlock_irqrestore(&buffer_lock, flags);
+	if (!(prz->flags & PRZ_FLAG_NO_LOCK))
+		raw_spin_unlock_irqrestore(&prz->buffer_lock, flags);
 
 	return old;
 }
 
 /* increase the size counter until it hits the max size */
-static void buffer_size_add_locked(struct persistent_ram_zone *prz, size_t a)
+static void buffer_size_add(struct persistent_ram_zone *prz, size_t a)
 {
 	size_t old;
 	size_t new;
-	unsigned long flags;
+	unsigned long flags = 0;
 
-	raw_spin_lock_irqsave(&buffer_lock, flags);
+	if (!(prz->flags & PRZ_FLAG_NO_LOCK))
+		raw_spin_lock_irqsave(&prz->buffer_lock, flags);
 
 	old = atomic_read(&prz->buffer->size);
 	if (old == prz->buffer_size)
@@ -121,12 +89,10 @@ static void buffer_size_add_locked(struc
 	atomic_set(&prz->buffer->size, new);
 
 exit:
-	raw_spin_unlock_irqrestore(&buffer_lock, flags);
+	if (!(prz->flags & PRZ_FLAG_NO_LOCK))
+		raw_spin_unlock_irqrestore(&prz->buffer_lock, flags);
 }
 
-static size_t (*buffer_start_add)(struct persistent_ram_zone *, size_t) = buffer_start_add_atomic;
-static void (*buffer_size_add)(struct persistent_ram_zone *, size_t) = buffer_size_add_atomic;
-
 static void notrace persistent_ram_encode_rs8(struct persistent_ram_zone *prz,
 	uint8_t *data, size_t len, uint8_t *ecc)
 {
@@ -299,7 +265,7 @@ static void notrace persistent_ram_updat
 	const void *s, unsigned int start, unsigned int count)
 {
 	struct persistent_ram_buffer *buffer = prz->buffer;
-	memcpy(buffer->data + start, s, count);
+	memcpy_toio(buffer->data + start, s, count);
 	persistent_ram_update_ecc(prz, start, count);
 }
 
@@ -322,8 +288,8 @@ void persistent_ram_save_old(struct pers
 	}
 
 	prz->old_log_size = size;
-	memcpy(prz->old_log, &buffer->data[start], size - start);
-	memcpy(prz->old_log + size - start, &buffer->data[0], start);
+	memcpy_fromio(prz->old_log, &buffer->data[start], size - start);
+	memcpy_fromio(prz->old_log + size - start, &buffer->data[0], start);
 }
 
 int notrace persistent_ram_write(struct persistent_ram_zone *prz,
@@ -426,9 +392,6 @@ static void *persistent_ram_iomap(phys_a
 		return NULL;
 	}
 
-	buffer_start_add = buffer_start_add_locked;
-	buffer_size_add = buffer_size_add_locked;
-
 	if (memtype)
 		va = ioremap(start, size);
 	else
@@ -487,6 +450,7 @@ static int persistent_ram_post_init(stru
 			 prz->buffer->sig);
 	}
 
+	/* Rewind missing or invalid memory area. */
 	prz->buffer->sig = sig;
 	persistent_ram_zap(prz);
 
@@ -513,7 +477,7 @@ void persistent_ram_free(struct persiste
 
 struct persistent_ram_zone *persistent_ram_new(phys_addr_t start, size_t size,
 			u32 sig, struct persistent_ram_ecc_info *ecc_info,
-			unsigned int memtype)
+			unsigned int memtype, u32 flags)
 {
 	struct persistent_ram_zone *prz;
 	int ret = -ENOMEM;
@@ -524,6 +488,10 @@ struct persistent_ram_zone *persistent_r
 		goto err;
 	}
 
+	/* Initialize general buffer state. */
+	raw_spin_lock_init(&prz->buffer_lock);
+	prz->flags = flags;
+
 	ret = persistent_ram_buffer_map(start, size, prz, memtype);
 	if (ret)
 		goto err;
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/quota/dquot.c linux-libre-4.4.107-gnu/fs/quota/dquot.c
--- linux-libre-4.4-gnu/fs/quota/dquot.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/quota/dquot.c	2017-12-20 04:05:01.000000000 -0500
@@ -1398,7 +1398,7 @@ static int dquot_active(const struct ino
 static int __dquot_initialize(struct inode *inode, int type)
 {
 	int cnt, init_needed = 0;
-	struct dquot **dquots, *got[MAXQUOTAS];
+	struct dquot **dquots, *got[MAXQUOTAS] = {};
 	struct super_block *sb = inode->i_sb;
 	qsize_t rsv;
 	int ret = 0;
@@ -1415,7 +1415,6 @@ static int __dquot_initialize(struct ino
 		int rc;
 		struct dquot *dquot;
 
-		got[cnt] = NULL;
 		if (type != -1 && cnt != type)
 			continue;
 		/*
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/read_write.c linux-libre-4.4.107-gnu/fs/read_write.c
--- linux-libre-4.4-gnu/fs/read_write.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/read_write.c	2017-12-20 04:05:01.000000000 -0500
@@ -112,7 +112,7 @@ generic_file_llseek_size(struct file *fi
 		 * In the generic case the entire file is data, so as long as
 		 * offset isn't at the end of the file then the offset is data.
 		 */
-		if (offset >= eof)
+		if ((unsigned long long)offset >= eof)
 			return -ENXIO;
 		break;
 	case SEEK_HOLE:
@@ -120,7 +120,7 @@ generic_file_llseek_size(struct file *fi
 		 * There is a virtual hole at the end of the file, so as long as
 		 * offset isn't i_size or larger, return i_size.
 		 */
-		if (offset >= eof)
+		if ((unsigned long long)offset >= eof)
 			return -ENXIO;
 		offset = eof;
 		break;
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/reiserfs/file.c linux-libre-4.4.107-gnu/fs/reiserfs/file.c
--- linux-libre-4.4-gnu/fs/reiserfs/file.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/reiserfs/file.c	2017-12-20 04:05:01.000000000 -0500
@@ -189,7 +189,7 @@ int reiserfs_commit_page(struct inode *i
 	int ret = 0;
 
 	th.t_trans_id = 0;
-	blocksize = 1 << inode->i_blkbits;
+	blocksize = i_blocksize(inode);
 
 	if (logit) {
 		reiserfs_write_lock(s);
@@ -260,10 +260,10 @@ const struct file_operations reiserfs_fi
 
 const struct inode_operations reiserfs_file_inode_operations = {
 	.setattr = reiserfs_setattr,
-	.setxattr = reiserfs_setxattr,
-	.getxattr = reiserfs_getxattr,
+	.setxattr = generic_setxattr,
+	.getxattr = generic_getxattr,
 	.listxattr = reiserfs_listxattr,
-	.removexattr = reiserfs_removexattr,
+	.removexattr = generic_removexattr,
 	.permission = reiserfs_permission,
 	.get_acl = reiserfs_get_acl,
 	.set_acl = reiserfs_set_acl,
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/reiserfs/ibalance.c linux-libre-4.4.107-gnu/fs/reiserfs/ibalance.c
--- linux-libre-4.4-gnu/fs/reiserfs/ibalance.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/reiserfs/ibalance.c	2017-12-20 04:05:01.000000000 -0500
@@ -1153,8 +1153,9 @@ int balance_internal(struct tree_balance
 				       insert_ptr);
 	}
 
-	memcpy(new_insert_key_addr, &new_insert_key, KEY_SIZE);
 	insert_ptr[0] = new_insert_ptr;
+	if (new_insert_ptr)
+		memcpy(new_insert_key_addr, &new_insert_key, KEY_SIZE);
 
 	return order;
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/reiserfs/inode.c linux-libre-4.4.107-gnu/fs/reiserfs/inode.c
--- linux-libre-4.4-gnu/fs/reiserfs/inode.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/reiserfs/inode.c	2017-12-20 04:05:01.000000000 -0500
@@ -524,7 +524,7 @@ static int reiserfs_get_blocks_direct_io
 	 * referenced in convert_tail_for_hole() that may be called from
 	 * reiserfs_get_block()
 	 */
-	bh_result->b_size = (1 << inode->i_blkbits);
+	bh_result->b_size = i_blocksize(inode);
 
 	ret = reiserfs_get_block(inode, iblock, bh_result,
 				 create | GET_BLOCK_NO_DANGLE);
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/reiserfs/namei.c linux-libre-4.4.107-gnu/fs/reiserfs/namei.c
--- linux-libre-4.4-gnu/fs/reiserfs/namei.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/reiserfs/namei.c	2017-12-20 04:05:01.000000000 -0500
@@ -1649,10 +1649,10 @@ const struct inode_operations reiserfs_d
 	.mknod = reiserfs_mknod,
 	.rename = reiserfs_rename,
 	.setattr = reiserfs_setattr,
-	.setxattr = reiserfs_setxattr,
-	.getxattr = reiserfs_getxattr,
+	.setxattr = generic_setxattr,
+	.getxattr = generic_getxattr,
 	.listxattr = reiserfs_listxattr,
-	.removexattr = reiserfs_removexattr,
+	.removexattr = generic_removexattr,
 	.permission = reiserfs_permission,
 	.get_acl = reiserfs_get_acl,
 	.set_acl = reiserfs_set_acl,
@@ -1667,10 +1667,10 @@ const struct inode_operations reiserfs_s
 	.follow_link = page_follow_link_light,
 	.put_link = page_put_link,
 	.setattr = reiserfs_setattr,
-	.setxattr = reiserfs_setxattr,
-	.getxattr = reiserfs_getxattr,
+	.setxattr = generic_setxattr,
+	.getxattr = generic_getxattr,
 	.listxattr = reiserfs_listxattr,
-	.removexattr = reiserfs_removexattr,
+	.removexattr = generic_removexattr,
 	.permission = reiserfs_permission,
 };
 
@@ -1679,10 +1679,10 @@ const struct inode_operations reiserfs_s
  */
 const struct inode_operations reiserfs_special_inode_operations = {
 	.setattr = reiserfs_setattr,
-	.setxattr = reiserfs_setxattr,
-	.getxattr = reiserfs_getxattr,
+	.setxattr = generic_setxattr,
+	.getxattr = generic_getxattr,
 	.listxattr = reiserfs_listxattr,
-	.removexattr = reiserfs_removexattr,
+	.removexattr = generic_removexattr,
 	.permission = reiserfs_permission,
 	.get_acl = reiserfs_get_acl,
 	.set_acl = reiserfs_set_acl,
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/reiserfs/super.c linux-libre-4.4.107-gnu/fs/reiserfs/super.c
--- linux-libre-4.4-gnu/fs/reiserfs/super.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/reiserfs/super.c	2017-12-20 04:05:01.000000000 -0500
@@ -190,7 +190,15 @@ static int remove_save_link_only(struct
 static int reiserfs_quota_on_mount(struct super_block *, int);
 #endif
 
-/* look for uncompleted unlinks and truncates and complete them */
+/*
+ * Look for uncompleted unlinks and truncates and complete them
+ *
+ * Called with superblock write locked.  If quotas are enabled, we have to
+ * release/retake lest we call dquot_quota_on_mount(), proceed to
+ * schedule_on_each_cpu() in invalidate_bdev() and deadlock waiting for the per
+ * cpu worklets to complete flush_async_commits() that in turn wait for the
+ * superblock write lock.
+ */
 static int finish_unfinished(struct super_block *s)
 {
 	INITIALIZE_PATH(path);
@@ -237,7 +245,9 @@ static int finish_unfinished(struct supe
 				quota_enabled[i] = 0;
 				continue;
 			}
+			reiserfs_write_unlock(s);
 			ret = reiserfs_quota_on_mount(s, i);
+			reiserfs_write_lock(s);
 			if (ret < 0)
 				reiserfs_warning(s, "reiserfs-2500",
 						 "cannot turn on journaled "
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/reiserfs/xattr_acl.c linux-libre-4.4.107-gnu/fs/reiserfs/xattr_acl.c
--- linux-libre-4.4-gnu/fs/reiserfs/xattr_acl.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/reiserfs/xattr_acl.c	2017-12-20 04:05:01.000000000 -0500
@@ -246,13 +246,9 @@ __reiserfs_set_acl(struct reiserfs_trans
 	case ACL_TYPE_ACCESS:
 		name = POSIX_ACL_XATTR_ACCESS;
 		if (acl) {
-			error = posix_acl_equiv_mode(acl, &inode->i_mode);
-			if (error < 0)
+			error = posix_acl_update_mode(inode, &inode->i_mode, &acl);
+			if (error)
 				return error;
-			else {
-				if (error == 0)
-					acl = NULL;
-			}
 		}
 		break;
 	case ACL_TYPE_DEFAULT:
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/reiserfs/xattr.c linux-libre-4.4.107-gnu/fs/reiserfs/xattr.c
--- linux-libre-4.4-gnu/fs/reiserfs/xattr.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/reiserfs/xattr.c	2017-12-20 04:05:01.000000000 -0500
@@ -763,60 +763,6 @@ find_xattr_handler_prefix(const struct x
 	return xah;
 }
 
-
-/*
- * Inode operation getxattr()
- */
-ssize_t
-reiserfs_getxattr(struct dentry * dentry, const char *name, void *buffer,
-		  size_t size)
-{
-	const struct xattr_handler *handler;
-
-	handler = find_xattr_handler_prefix(dentry->d_sb->s_xattr, name);
-
-	if (!handler || get_inode_sd_version(d_inode(dentry)) == STAT_DATA_V1)
-		return -EOPNOTSUPP;
-
-	return handler->get(handler, dentry, name, buffer, size);
-}
-
-/*
- * Inode operation setxattr()
- *
- * d_inode(dentry)->i_mutex down
- */
-int
-reiserfs_setxattr(struct dentry *dentry, const char *name, const void *value,
-		  size_t size, int flags)
-{
-	const struct xattr_handler *handler;
-
-	handler = find_xattr_handler_prefix(dentry->d_sb->s_xattr, name);
-
-	if (!handler || get_inode_sd_version(d_inode(dentry)) == STAT_DATA_V1)
-		return -EOPNOTSUPP;
-
-	return handler->set(handler, dentry, name, value, size, flags);
-}
-
-/*
- * Inode operation removexattr()
- *
- * d_inode(dentry)->i_mutex down
- */
-int reiserfs_removexattr(struct dentry *dentry, const char *name)
-{
-	const struct xattr_handler *handler;
-
-	handler = find_xattr_handler_prefix(dentry->d_sb->s_xattr, name);
-
-	if (!handler || get_inode_sd_version(d_inode(dentry)) == STAT_DATA_V1)
-		return -EOPNOTSUPP;
-
-	return handler->set(handler, dentry, name, NULL, 0, XATTR_REPLACE);
-}
-
 struct listxattr_buf {
 	struct dir_context ctx;
 	size_t size;
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/reiserfs/xattr.h linux-libre-4.4.107-gnu/fs/reiserfs/xattr.h
--- linux-libre-4.4-gnu/fs/reiserfs/xattr.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/reiserfs/xattr.h	2017-12-20 04:05:01.000000000 -0500
@@ -2,6 +2,7 @@
 #include <linux/init.h>
 #include <linux/list.h>
 #include <linux/rwsem.h>
+#include <linux/xattr.h>
 
 struct inode;
 struct dentry;
@@ -18,12 +19,7 @@ int reiserfs_permission(struct inode *in
 
 #ifdef CONFIG_REISERFS_FS_XATTR
 #define has_xattr_dir(inode) (REISERFS_I(inode)->i_flags & i_has_xattr_dir)
-ssize_t reiserfs_getxattr(struct dentry *dentry, const char *name,
-			  void *buffer, size_t size);
-int reiserfs_setxattr(struct dentry *dentry, const char *name,
-		      const void *value, size_t size, int flags);
 ssize_t reiserfs_listxattr(struct dentry *dentry, char *buffer, size_t size);
-int reiserfs_removexattr(struct dentry *dentry, const char *name);
 
 int reiserfs_xattr_get(struct inode *, const char *, void *, size_t);
 int reiserfs_xattr_set(struct inode *, const char *, const void *, size_t, int);
@@ -92,10 +88,7 @@ static inline void reiserfs_init_xattr_r
 
 #else
 
-#define reiserfs_getxattr NULL
-#define reiserfs_setxattr NULL
 #define reiserfs_listxattr NULL
-#define reiserfs_removexattr NULL
 
 static inline void reiserfs_init_xattr_rwsem(struct inode *inode)
 {
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/reiserfs/xattr_security.c linux-libre-4.4.107-gnu/fs/reiserfs/xattr_security.c
--- linux-libre-4.4-gnu/fs/reiserfs/xattr_security.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/reiserfs/xattr_security.c	2017-12-20 04:05:01.000000000 -0500
@@ -12,26 +12,24 @@ static int
 security_get(const struct xattr_handler *handler, struct dentry *dentry,
 	     const char *name, void *buffer, size_t size)
 {
-	if (strlen(name) < sizeof(XATTR_SECURITY_PREFIX))
-		return -EINVAL;
-
 	if (IS_PRIVATE(d_inode(dentry)))
 		return -EPERM;
 
-	return reiserfs_xattr_get(d_inode(dentry), name, buffer, size);
+	return reiserfs_xattr_get(d_inode(dentry),
+				  xattr_full_name(handler, name),
+				  buffer, size);
 }
 
 static int
 security_set(const struct xattr_handler *handler, struct dentry *dentry,
 	     const char *name, const void *buffer, size_t size, int flags)
 {
-	if (strlen(name) < sizeof(XATTR_SECURITY_PREFIX))
-		return -EINVAL;
-
 	if (IS_PRIVATE(d_inode(dentry)))
 		return -EPERM;
 
-	return reiserfs_xattr_set(d_inode(dentry), name, buffer, size, flags);
+	return reiserfs_xattr_set(d_inode(dentry),
+				  xattr_full_name(handler, name),
+				  buffer, size, flags);
 }
 
 static size_t security_list(const struct xattr_handler *handler,
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/reiserfs/xattr_trusted.c linux-libre-4.4.107-gnu/fs/reiserfs/xattr_trusted.c
--- linux-libre-4.4-gnu/fs/reiserfs/xattr_trusted.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/reiserfs/xattr_trusted.c	2017-12-20 04:05:01.000000000 -0500
@@ -11,26 +11,24 @@ static int
 trusted_get(const struct xattr_handler *handler, struct dentry *dentry,
 	    const char *name, void *buffer, size_t size)
 {
-	if (strlen(name) < sizeof(XATTR_TRUSTED_PREFIX))
-		return -EINVAL;
-
 	if (!capable(CAP_SYS_ADMIN) || IS_PRIVATE(d_inode(dentry)))
 		return -EPERM;
 
-	return reiserfs_xattr_get(d_inode(dentry), name, buffer, size);
+	return reiserfs_xattr_get(d_inode(dentry),
+				  xattr_full_name(handler, name),
+				  buffer, size);
 }
 
 static int
 trusted_set(const struct xattr_handler *handler, struct dentry *dentry,
 	    const char *name, const void *buffer, size_t size, int flags)
 {
-	if (strlen(name) < sizeof(XATTR_TRUSTED_PREFIX))
-		return -EINVAL;
-
 	if (!capable(CAP_SYS_ADMIN) || IS_PRIVATE(d_inode(dentry)))
 		return -EPERM;
 
-	return reiserfs_xattr_set(d_inode(dentry), name, buffer, size, flags);
+	return reiserfs_xattr_set(d_inode(dentry),
+				  xattr_full_name(handler, name),
+				  buffer, size, flags);
 }
 
 static size_t trusted_list(const struct xattr_handler *handler,
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/reiserfs/xattr_user.c linux-libre-4.4.107-gnu/fs/reiserfs/xattr_user.c
--- linux-libre-4.4-gnu/fs/reiserfs/xattr_user.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/reiserfs/xattr_user.c	2017-12-20 04:05:01.000000000 -0500
@@ -10,24 +10,22 @@ static int
 user_get(const struct xattr_handler *handler, struct dentry *dentry,
 	 const char *name, void *buffer, size_t size)
 {
-
-	if (strlen(name) < sizeof(XATTR_USER_PREFIX))
-		return -EINVAL;
 	if (!reiserfs_xattrs_user(dentry->d_sb))
 		return -EOPNOTSUPP;
-	return reiserfs_xattr_get(d_inode(dentry), name, buffer, size);
+	return reiserfs_xattr_get(d_inode(dentry),
+				  xattr_full_name(handler, name),
+				  buffer, size);
 }
 
 static int
 user_set(const struct xattr_handler *handler, struct dentry *dentry,
 	 const char *name, const void *buffer, size_t size, int flags)
 {
-	if (strlen(name) < sizeof(XATTR_USER_PREFIX))
-		return -EINVAL;
-
 	if (!reiserfs_xattrs_user(dentry->d_sb))
 		return -EOPNOTSUPP;
-	return reiserfs_xattr_set(d_inode(dentry), name, buffer, size, flags);
+	return reiserfs_xattr_set(d_inode(dentry),
+				  xattr_full_name(handler, name),
+				  buffer, size, flags);
 }
 
 static size_t user_list(const struct xattr_handler *handler,
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/romfs/super.c linux-libre-4.4.107-gnu/fs/romfs/super.c
--- linux-libre-4.4-gnu/fs/romfs/super.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/romfs/super.c	2017-12-20 04:05:01.000000000 -0500
@@ -74,6 +74,7 @@
 #include <linux/highmem.h>
 #include <linux/pagemap.h>
 #include <linux/uaccess.h>
+#include <linux/major.h>
 #include "internal.h"
 
 static struct kmem_cache *romfs_inode_cachep;
@@ -415,7 +416,22 @@ static void romfs_destroy_inode(struct i
 static int romfs_statfs(struct dentry *dentry, struct kstatfs *buf)
 {
 	struct super_block *sb = dentry->d_sb;
-	u64 id = huge_encode_dev(sb->s_bdev->bd_dev);
+	u64 id = 0;
+
+	/* When calling huge_encode_dev(),
+	 * use sb->s_bdev->bd_dev when,
+	 *   - CONFIG_ROMFS_ON_BLOCK defined
+	 * use sb->s_dev when,
+	 *   - CONFIG_ROMFS_ON_BLOCK undefined and
+	 *   - CONFIG_ROMFS_ON_MTD defined
+	 * leave id as 0 when,
+	 *   - CONFIG_ROMFS_ON_BLOCK undefined and
+	 *   - CONFIG_ROMFS_ON_MTD undefined
+	 */
+	if (sb->s_bdev)
+		id = huge_encode_dev(sb->s_bdev->bd_dev);
+	else if (sb->s_dev)
+		id = huge_encode_dev(sb->s_dev);
 
 	buf->f_type = ROMFS_MAGIC;
 	buf->f_namelen = ROMFS_MAXFN;
@@ -488,6 +504,11 @@ static int romfs_fill_super(struct super
 	sb->s_flags |= MS_RDONLY | MS_NOATIME;
 	sb->s_op = &romfs_super_ops;
 
+#ifdef CONFIG_ROMFS_ON_MTD
+	/* Use same dev ID from the underlying mtdblock device */
+	if (sb->s_mtd)
+		sb->s_dev = MKDEV(MTD_BLOCK_MAJOR, sb->s_mtd->index);
+#endif
 	/* read the image superblock and check it */
 	rsb = kmalloc(512, GFP_KERNEL);
 	if (!rsb)
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/seq_file.c linux-libre-4.4.107-gnu/fs/seq_file.c
--- linux-libre-4.4-gnu/fs/seq_file.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/seq_file.c	2017-12-20 04:05:01.000000000 -0500
@@ -72,9 +72,10 @@ int seq_open(struct file *file, const st
 
 	mutex_init(&p->lock);
 	p->op = op;
-#ifdef CONFIG_USER_NS
-	p->user_ns = file->f_cred->user_ns;
-#endif
+
+	// No refcounting: the lifetime of 'p' is constrained
+	// to the lifetime of the file.
+	p->file = file;
 
 	/*
 	 * Wrappers around seq_open(e.g. swaps_open) need to be
@@ -222,8 +223,10 @@ ssize_t seq_read(struct file *file, char
 		size -= n;
 		buf += n;
 		copied += n;
-		if (!m->count)
+		if (!m->count) {
+			m->from = 0;
 			m->index++;
+		}
 		if (!size)
 			goto Done;
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/splice.c linux-libre-4.4.107-gnu/fs/splice.c
--- linux-libre-4.4-gnu/fs/splice.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/splice.c	2017-12-20 04:05:01.000000000 -0500
@@ -185,6 +185,9 @@ ssize_t splice_to_pipe(struct pipe_inode
 	unsigned int spd_pages = spd->nr_pages;
 	int ret, do_wakeup, page_nr;
 
+	if (!spd_pages)
+		return 0;
+
 	ret = 0;
 	do_wakeup = 0;
 	page_nr = 0;
@@ -208,6 +211,7 @@ ssize_t splice_to_pipe(struct pipe_inode
 			buf->len = spd->partial[page_nr].len;
 			buf->private = spd->partial[page_nr].private;
 			buf->ops = spd->ops;
+			buf->flags = 0;
 			if (spd->flags & SPLICE_F_GIFT)
 				buf->flags |= PIPE_BUF_FLAG_GIFT;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/stat.c linux-libre-4.4.107-gnu/fs/stat.c
--- linux-libre-4.4-gnu/fs/stat.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/stat.c	2017-12-20 04:05:01.000000000 -0500
@@ -31,7 +31,7 @@ void generic_fillattr(struct inode *inod
 	stat->atime = inode->i_atime;
 	stat->mtime = inode->i_mtime;
 	stat->ctime = inode->i_ctime;
-	stat->blksize = (1 << inode->i_blkbits);
+	stat->blksize = i_blocksize(inode);
 	stat->blocks = inode->i_blocks;
 }
 
@@ -454,6 +454,7 @@ void __inode_add_bytes(struct inode *ino
 		inode->i_bytes -= 512;
 	}
 }
+EXPORT_SYMBOL(__inode_add_bytes);
 
 void inode_add_bytes(struct inode *inode, loff_t bytes)
 {
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/super.c linux-libre-4.4.107-gnu/fs/super.c
--- linux-libre-4.4-gnu/fs/super.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/super.c	2017-12-20 04:05:01.000000000 -0500
@@ -415,6 +415,7 @@ void generic_shutdown_super(struct super
 		sb->s_flags &= ~MS_ACTIVE;
 
 		fsnotify_unmount_inodes(sb);
+		cgroup_writeback_umount();
 
 		evict_inodes(sb);
 
@@ -1325,8 +1326,8 @@ int freeze_super(struct super_block *sb)
 		}
 	}
 	/*
-	 * This is just for debugging purposes so that fs can warn if it
-	 * sees write activity when frozen is set to SB_FREEZE_COMPLETE.
+	 * For debugging purposes so that fs can warn if it sees write activity
+	 * when frozen is set to SB_FREEZE_COMPLETE, and for thaw_super().
 	 */
 	sb->s_writers.frozen = SB_FREEZE_COMPLETE;
 	up_write(&sb->s_umount);
@@ -1345,7 +1346,7 @@ int thaw_super(struct super_block *sb)
 	int error;
 
 	down_write(&sb->s_umount);
-	if (sb->s_writers.frozen == SB_UNFROZEN) {
+	if (sb->s_writers.frozen != SB_FREEZE_COMPLETE) {
 		up_write(&sb->s_umount);
 		return -EINVAL;
 	}
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/sysfs/file.c linux-libre-4.4.107-gnu/fs/sysfs/file.c
--- linux-libre-4.4-gnu/fs/sysfs/file.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/sysfs/file.c	2017-12-20 04:05:01.000000000 -0500
@@ -108,16 +108,24 @@ static ssize_t sysfs_kf_read(struct kern
 {
 	const struct sysfs_ops *ops = sysfs_file_ops(of->kn);
 	struct kobject *kobj = of->kn->parent->priv;
-	size_t len;
+	ssize_t len;
 
 	/*
 	 * If buf != of->prealloc_buf, we don't know how
 	 * large it is, so cannot safely pass it to ->show
 	 */
-	if (pos || WARN_ON_ONCE(buf != of->prealloc_buf))
+	if (WARN_ON_ONCE(buf != of->prealloc_buf))
 		return 0;
 	len = ops->show(kobj, of->kn->priv, buf);
-	return min(count, len);
+	if (len < 0)
+		return len;
+	if (pos) {
+		if (len <= pos)
+			return 0;
+		len -= pos;
+		memmove(buf, buf + pos, len);
+	}
+	return min_t(ssize_t, count, len);
 }
 
 /* kernfs write callback for regular sysfs files */
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/timerfd.c linux-libre-4.4.107-gnu/fs/timerfd.c
--- linux-libre-4.4-gnu/fs/timerfd.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/timerfd.c	2017-12-20 04:05:01.000000000 -0500
@@ -40,6 +40,7 @@ struct timerfd_ctx {
 	short unsigned settime_flags;	/* to show in fdinfo */
 	struct rcu_head rcu;
 	struct list_head clist;
+	spinlock_t cancel_lock;
 	bool might_cancel;
 };
 
@@ -112,7 +113,7 @@ void timerfd_clock_was_set(void)
 	rcu_read_unlock();
 }
 
-static void timerfd_remove_cancel(struct timerfd_ctx *ctx)
+static void __timerfd_remove_cancel(struct timerfd_ctx *ctx)
 {
 	if (ctx->might_cancel) {
 		ctx->might_cancel = false;
@@ -122,6 +123,13 @@ static void timerfd_remove_cancel(struct
 	}
 }
 
+static void timerfd_remove_cancel(struct timerfd_ctx *ctx)
+{
+	spin_lock(&ctx->cancel_lock);
+	__timerfd_remove_cancel(ctx);
+	spin_unlock(&ctx->cancel_lock);
+}
+
 static bool timerfd_canceled(struct timerfd_ctx *ctx)
 {
 	if (!ctx->might_cancel || ctx->moffs.tv64 != KTIME_MAX)
@@ -132,6 +140,7 @@ static bool timerfd_canceled(struct time
 
 static void timerfd_setup_cancel(struct timerfd_ctx *ctx, int flags)
 {
+	spin_lock(&ctx->cancel_lock);
 	if ((ctx->clockid == CLOCK_REALTIME ||
 	     ctx->clockid == CLOCK_REALTIME_ALARM) &&
 	    (flags & TFD_TIMER_ABSTIME) && (flags & TFD_TIMER_CANCEL_ON_SET)) {
@@ -141,9 +150,10 @@ static void timerfd_setup_cancel(struct
 			list_add_rcu(&ctx->clist, &cancel_list);
 			spin_unlock(&cancel_lock);
 		}
-	} else if (ctx->might_cancel) {
-		timerfd_remove_cancel(ctx);
+	} else {
+		__timerfd_remove_cancel(ctx);
 	}
+	spin_unlock(&ctx->cancel_lock);
 }
 
 static ktime_t timerfd_get_remaining(struct timerfd_ctx *ctx)
@@ -153,7 +163,7 @@ static ktime_t timerfd_get_remaining(str
 	if (isalarm(ctx))
 		remaining = alarm_expires_remaining(&ctx->t.alarm);
 	else
-		remaining = hrtimer_expires_remaining(&ctx->t.tmr);
+		remaining = hrtimer_expires_remaining_adjusted(&ctx->t.tmr);
 
 	return remaining.tv64 < 0 ? ktime_set(0, 0): remaining;
 }
@@ -395,6 +405,7 @@ SYSCALL_DEFINE2(timerfd_create, int, clo
 		return -ENOMEM;
 
 	init_waitqueue_head(&ctx->wqh);
+	spin_lock_init(&ctx->cancel_lock);
 	ctx->clockid = clockid;
 
 	if (isalarm(ctx))
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ubifs/dir.c linux-libre-4.4.107-gnu/fs/ubifs/dir.c
--- linux-libre-4.4-gnu/fs/ubifs/dir.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/ubifs/dir.c	2017-12-20 04:05:01.000000000 -0500
@@ -350,7 +350,7 @@ static unsigned int vfs_dent_type(uint8_
  */
 static int ubifs_readdir(struct file *file, struct dir_context *ctx)
 {
-	int err;
+	int err = 0;
 	struct qstr nm;
 	union ubifs_key key;
 	struct ubifs_dent_node *dent;
@@ -452,14 +452,20 @@ out:
 	kfree(file->private_data);
 	file->private_data = NULL;
 
-	if (err != -ENOENT) {
+	if (err != -ENOENT)
 		ubifs_err(c, "cannot find next direntry, error %d", err);
-		return err;
-	}
+	else
+		/*
+		 * -ENOENT is a non-fatal error in this context, the TNC uses
+		 * it to indicate that the cursor moved past the current directory
+		 * and readdir() has to stop.
+		 */
+		err = 0;
+
 
 	/* 2 is a special value indicating that there are no more direntries */
 	ctx->pos = 2;
-	return 0;
+	return err;
 }
 
 /* Free saved readdir() state when the directory is closed */
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ubifs/file.c linux-libre-4.4.107-gnu/fs/ubifs/file.c
--- linux-libre-4.4-gnu/fs/ubifs/file.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/ubifs/file.c	2017-12-20 04:05:01.000000000 -0500
@@ -52,6 +52,7 @@
 #include "ubifs.h"
 #include <linux/mount.h>
 #include <linux/slab.h>
+#include <linux/migrate.h>
 
 static int read_block(struct inode *inode, void *addr, unsigned int block,
 		      struct ubifs_data_node *dn)
@@ -1452,6 +1453,26 @@ static int ubifs_set_page_dirty(struct p
 	return ret;
 }
 
+#ifdef CONFIG_MIGRATION
+static int ubifs_migrate_page(struct address_space *mapping,
+		struct page *newpage, struct page *page, enum migrate_mode mode)
+{
+	int rc;
+
+	rc = migrate_page_move_mapping(mapping, newpage, page, NULL, mode, 0);
+	if (rc != MIGRATEPAGE_SUCCESS)
+		return rc;
+
+	if (PagePrivate(page)) {
+		ClearPagePrivate(page);
+		SetPagePrivate(newpage);
+	}
+
+	migrate_page_copy(newpage, page);
+	return MIGRATEPAGE_SUCCESS;
+}
+#endif
+
 static int ubifs_releasepage(struct page *page, gfp_t unused_gfp_flags)
 {
 	/*
@@ -1591,6 +1612,9 @@ const struct address_space_operations ub
 	.write_end      = ubifs_write_end,
 	.invalidatepage = ubifs_invalidatepage,
 	.set_page_dirty = ubifs_set_page_dirty,
+#ifdef CONFIG_MIGRATION
+	.migratepage	= ubifs_migrate_page,
+#endif
 	.releasepage    = ubifs_releasepage,
 };
 
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ubifs/tnc.c linux-libre-4.4.107-gnu/fs/ubifs/tnc.c
--- linux-libre-4.4-gnu/fs/ubifs/tnc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/ubifs/tnc.c	2017-12-20 04:05:01.000000000 -0500
@@ -34,6 +34,11 @@
 #include <linux/slab.h>
 #include "ubifs.h"
 
+static int try_read_node(const struct ubifs_info *c, void *buf, int type,
+			 int len, int lnum, int offs);
+static int fallible_read_node(struct ubifs_info *c, const union ubifs_key *key,
+			      struct ubifs_zbranch *zbr, void *node);
+
 /*
  * Returned codes of 'matches_name()' and 'fallible_matches_name()' functions.
  * @NAME_LESS: name corresponding to the first argument is less than second
@@ -402,7 +407,19 @@ static int tnc_read_node_nm(struct ubifs
 		return 0;
 	}
 
-	err = ubifs_tnc_read_node(c, zbr, node);
+	if (c->replaying) {
+		err = fallible_read_node(c, &zbr->key, zbr, node);
+		/*
+		 * When the node was not found, return -ENOENT, 0 otherwise.
+		 * Negative return codes stay as-is.
+		 */
+		if (err == 0)
+			err = -ENOENT;
+		else if (err == 1)
+			err = 0;
+	} else {
+		err = ubifs_tnc_read_node(c, zbr, node);
+	}
 	if (err)
 		return err;
 
@@ -2766,7 +2783,11 @@ struct ubifs_dent_node *ubifs_tnc_next_e
 	if (nm->name) {
 		if (err) {
 			/* Handle collisions */
-			err = resolve_collision(c, key, &znode, &n, nm);
+			if (c->replaying)
+				err = fallible_resolve_collision(c, key, &znode, &n,
+							 nm, 0);
+			else
+				err = resolve_collision(c, key, &znode, &n, nm);
 			dbg_tnc("rc returned %d, znode %p, n %d",
 				err, znode, n);
 			if (unlikely(err < 0))
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ubifs/tnc_commit.c linux-libre-4.4.107-gnu/fs/ubifs/tnc_commit.c
--- linux-libre-4.4-gnu/fs/ubifs/tnc_commit.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/ubifs/tnc_commit.c	2017-12-20 04:05:01.000000000 -0500
@@ -370,7 +370,7 @@ static int layout_in_gaps(struct ubifs_i
 
 	p = c->gap_lebs;
 	do {
-		ubifs_assert(p < c->gap_lebs + sizeof(int) * c->lst.idx_lebs);
+		ubifs_assert(p < c->gap_lebs + c->lst.idx_lebs);
 		written = layout_leb_in_gaps(c, p);
 		if (written < 0) {
 			err = written;
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ubifs/xattr.c linux-libre-4.4.107-gnu/fs/ubifs/xattr.c
--- linux-libre-4.4-gnu/fs/ubifs/xattr.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/ubifs/xattr.c	2017-12-20 04:05:01.000000000 -0500
@@ -173,6 +173,7 @@ out_cancel:
 	host_ui->xattr_cnt -= 1;
 	host_ui->xattr_size -= CALC_DENT_SIZE(nm->len);
 	host_ui->xattr_size -= CALC_XATTR_BYTES(size);
+	host_ui->xattr_names -= nm->len;
 	mutex_unlock(&host_ui->ui_mutex);
 out_free:
 	make_bad_inode(inode);
@@ -533,6 +534,7 @@ out_cancel:
 	host_ui->xattr_cnt += 1;
 	host_ui->xattr_size += CALC_DENT_SIZE(nm->len);
 	host_ui->xattr_size += CALC_XATTR_BYTES(ui->data_len);
+	host_ui->xattr_names += nm->len;
 	mutex_unlock(&host_ui->ui_mutex);
 	ubifs_release_budget(c, &req);
 	make_bad_inode(inode);
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/udf/inode.c linux-libre-4.4.107-gnu/fs/udf/inode.c
--- linux-libre-4.4-gnu/fs/udf/inode.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/udf/inode.c	2017-12-20 04:05:01.000000000 -0500
@@ -1206,7 +1206,7 @@ int udf_setsize(struct inode *inode, lof
 {
 	int err;
 	struct udf_inode_info *iinfo;
-	int bsize = 1 << inode->i_blkbits;
+	int bsize = i_blocksize(inode);
 
 	if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) ||
 	      S_ISLNK(inode->i_mode)))
@@ -1235,8 +1235,8 @@ int udf_setsize(struct inode *inode, lof
 			return err;
 		}
 set_size:
-		truncate_setsize(inode, newsize);
 		up_write(&iinfo->i_data_sem);
+		truncate_setsize(inode, newsize);
 	} else {
 		if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB) {
 			down_write(&iinfo->i_data_sem);
@@ -1253,9 +1253,9 @@ set_size:
 					  udf_get_block);
 		if (err)
 			return err;
+		truncate_setsize(inode, newsize);
 		down_write(&iinfo->i_data_sem);
 		udf_clear_extent_cache(inode);
-		truncate_setsize(inode, newsize);
 		udf_truncate_extents(inode);
 		up_write(&iinfo->i_data_sem);
 	}
@@ -2047,14 +2047,29 @@ void udf_write_aext(struct inode *inode,
 		epos->offset += adsize;
 }
 
+/*
+ * Only 1 indirect extent in a row really makes sense but allow upto 16 in case
+ * someone does some weird stuff.
+ */
+#define UDF_MAX_INDIR_EXTS 16
+
 int8_t udf_next_aext(struct inode *inode, struct extent_position *epos,
 		     struct kernel_lb_addr *eloc, uint32_t *elen, int inc)
 {
 	int8_t etype;
+	unsigned int indirections = 0;
 
 	while ((etype = udf_current_aext(inode, epos, eloc, elen, inc)) ==
 	       (EXT_NEXT_EXTENT_ALLOCDECS >> 30)) {
 		int block;
+
+		if (++indirections > UDF_MAX_INDIR_EXTS) {
+			udf_err(inode->i_sb,
+				"too many indirect extents in inode %lu\n",
+				inode->i_ino);
+			return -1;
+		}
+
 		epos->block = *eloc;
 		epos->offset = sizeof(struct allocExtDesc);
 		brelse(epos->bh);
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/udf/super.c linux-libre-4.4.107-gnu/fs/udf/super.c
--- linux-libre-4.4-gnu/fs/udf/super.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/udf/super.c	2017-12-20 04:05:01.000000000 -0500
@@ -705,7 +705,7 @@ static loff_t udf_check_vsd(struct super
 	else
 		sectorsize = sb->s_blocksize;
 
-	sector += (sbi->s_session << sb->s_blocksize_bits);
+	sector += (((loff_t)sbi->s_session) << sb->s_blocksize_bits);
 
 	udf_debug("Starting at sector %u (%ld byte sectors)\n",
 		  (unsigned int)(sector >> sb->s_blocksize_bits),
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/udf/unicode.c linux-libre-4.4.107-gnu/fs/udf/unicode.c
--- linux-libre-4.4-gnu/fs/udf/unicode.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/udf/unicode.c	2017-12-20 04:05:01.000000000 -0500
@@ -128,11 +128,15 @@ int udf_CS0toUTF8(struct ustr *utf_o, co
 		if (c < 0x80U)
 			utf_o->u_name[utf_o->u_len++] = (uint8_t)c;
 		else if (c < 0x800U) {
+			if (utf_o->u_len > (UDF_NAME_LEN - 4))
+				break;
 			utf_o->u_name[utf_o->u_len++] =
 						(uint8_t)(0xc0 | (c >> 6));
 			utf_o->u_name[utf_o->u_len++] =
 						(uint8_t)(0x80 | (c & 0x3f));
 		} else {
+			if (utf_o->u_len > (UDF_NAME_LEN - 5))
+				break;
 			utf_o->u_name[utf_o->u_len++] =
 						(uint8_t)(0xe0 | (c >> 12));
 			utf_o->u_name[utf_o->u_len++] =
@@ -173,17 +177,22 @@ int udf_CS0toUTF8(struct ustr *utf_o, co
 static int udf_UTF8toCS0(dstring *ocu, struct ustr *utf, int length)
 {
 	unsigned c, i, max_val, utf_char;
-	int utf_cnt, u_len;
+	int utf_cnt, u_len, u_ch;
 
 	memset(ocu, 0, sizeof(dstring) * length);
 	ocu[0] = 8;
 	max_val = 0xffU;
+	u_ch = 1;
 
 try_again:
 	u_len = 0U;
 	utf_char = 0U;
 	utf_cnt = 0U;
 	for (i = 0U; i < utf->u_len; i++) {
+		/* Name didn't fit? */
+		if (u_len + 1 + u_ch >= length)
+			return 0;
+
 		c = (uint8_t)utf->u_name[i];
 
 		/* Complete a multi-byte UTF-8 character */
@@ -225,6 +234,7 @@ try_again:
 			if (max_val == 0xffU) {
 				max_val = 0xffffU;
 				ocu[0] = (uint8_t)0x10U;
+				u_ch = 2;
 				goto try_again;
 			}
 			goto error_out;
@@ -277,7 +287,7 @@ static int udf_CS0toNLS(struct nls_table
 			c = (c << 8) | ocu[i++];
 
 		len = nls->uni2char(c, &utf_o->u_name[utf_o->u_len],
-				    UDF_NAME_LEN - utf_o->u_len);
+				    UDF_NAME_LEN - 2 - utf_o->u_len);
 		/* Valid character? */
 		if (len >= 0)
 			utf_o->u_len += len;
@@ -295,15 +305,19 @@ static int udf_NLStoCS0(struct nls_table
 	int len;
 	unsigned i, max_val;
 	uint16_t uni_char;
-	int u_len;
+	int u_len, u_ch;
 
 	memset(ocu, 0, sizeof(dstring) * length);
 	ocu[0] = 8;
 	max_val = 0xffU;
+	u_ch = 1;
 
 try_again:
 	u_len = 0U;
 	for (i = 0U; i < uni->u_len; i++) {
+		/* Name didn't fit? */
+		if (u_len + 1 + u_ch >= length)
+			return 0;
 		len = nls->char2uni(&uni->u_name[i], uni->u_len - i, &uni_char);
 		if (!len)
 			continue;
@@ -316,6 +330,7 @@ try_again:
 		if (uni_char > max_val) {
 			max_val = 0xffffU;
 			ocu[0] = (uint8_t)0x10U;
+			u_ch = 2;
 			goto try_again;
 		}
 
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ufs/balloc.c linux-libre-4.4.107-gnu/fs/ufs/balloc.c
--- linux-libre-4.4-gnu/fs/ufs/balloc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/ufs/balloc.c	2017-12-20 04:05:01.000000000 -0500
@@ -81,7 +81,8 @@ void ufs_free_fragments(struct inode *in
 			ufs_error (sb, "ufs_free_fragments",
 				   "bit already cleared for fragment %u", i);
 	}
-	
+
+	inode_sub_bytes(inode, count << uspi->s_fshift);
 	fs32_add(sb, &ucg->cg_cs.cs_nffree, count);
 	uspi->cs_total.cs_nffree += count;
 	fs32_add(sb, &UFS_SB(sb)->fs_cs(cgno).cs_nffree, count);
@@ -183,6 +184,7 @@ do_more:
 			ufs_error(sb, "ufs_free_blocks", "freeing free fragment");
 		}
 		ubh_setblock(UCPI_UBH(ucpi), ucpi->c_freeoff, blkno);
+		inode_sub_bytes(inode, uspi->s_fpb << uspi->s_fshift);
 		if ((UFS_SB(sb)->s_flags & UFS_CG_MASK) == UFS_CG_44BSD)
 			ufs_clusteracct (sb, ucpi, blkno, 1);
 
@@ -494,6 +496,20 @@ u64 ufs_new_fragments(struct inode *inod
 	return 0;
 }		
 
+static bool try_add_frags(struct inode *inode, unsigned frags)
+{
+	unsigned size = frags * i_blocksize(inode);
+	spin_lock(&inode->i_lock);
+	__inode_add_bytes(inode, size);
+	if (unlikely((u32)inode->i_blocks != inode->i_blocks)) {
+		__inode_sub_bytes(inode, size);
+		spin_unlock(&inode->i_lock);
+		return false;
+	}
+	spin_unlock(&inode->i_lock);
+	return true;
+}
+
 static u64 ufs_add_fragments(struct inode *inode, u64 fragment,
 			     unsigned oldcount, unsigned newcount)
 {
@@ -530,6 +546,9 @@ static u64 ufs_add_fragments(struct inod
 	for (i = oldcount; i < newcount; i++)
 		if (ubh_isclr (UCPI_UBH(ucpi), ucpi->c_freeoff, fragno + i))
 			return 0;
+
+	if (!try_add_frags(inode, count))
+		return 0;
 	/*
 	 * Block can be extended
 	 */
@@ -647,6 +666,7 @@ cg_found:
 			ubh_setbit (UCPI_UBH(ucpi), ucpi->c_freeoff, goal + i);
 		i = uspi->s_fpb - count;
 
+		inode_sub_bytes(inode, i << uspi->s_fshift);
 		fs32_add(sb, &ucg->cg_cs.cs_nffree, i);
 		uspi->cs_total.cs_nffree += i;
 		fs32_add(sb, &UFS_SB(sb)->fs_cs(cgno).cs_nffree, i);
@@ -657,6 +677,8 @@ cg_found:
 	result = ufs_bitmap_search (sb, ucpi, goal, allocsize);
 	if (result == INVBLOCK)
 		return 0;
+	if (!try_add_frags(inode, count))
+		return 0;
 	for (i = 0; i < count; i++)
 		ubh_clrbit (UCPI_UBH(ucpi), ucpi->c_freeoff, result + i);
 	
@@ -716,6 +738,8 @@ norot:
 		return INVBLOCK;
 	ucpi->c_rotor = result;
 gotit:
+	if (!try_add_frags(inode, uspi->s_fpb))
+		return 0;
 	blkno = ufs_fragstoblks(result);
 	ubh_clrblock (UCPI_UBH(ucpi), ucpi->c_freeoff, blkno);
 	if ((UFS_SB(sb)->s_flags & UFS_CG_MASK) == UFS_CG_44BSD)
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ufs/inode.c linux-libre-4.4.107-gnu/fs/ufs/inode.c
--- linux-libre-4.4-gnu/fs/ufs/inode.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/ufs/inode.c	2017-12-20 04:05:01.000000000 -0500
@@ -235,7 +235,8 @@ ufs_extend_tail(struct inode *inode, u64
 
 	p = ufs_get_direct_data_ptr(uspi, ufsi, block);
 	tmp = ufs_new_fragments(inode, p, lastfrag, ufs_data_ptr_to_cpu(sb, p),
-				new_size, err, locked_page);
+				new_size - (lastfrag & uspi->s_fpbmask), err,
+				locked_page);
 	return tmp != 0;
 }
 
@@ -284,7 +285,7 @@ ufs_inode_getfrag(struct inode *inode, u
 			goal += uspi->s_fpb;
 	}
 	tmp = ufs_new_fragments(inode, p, ufs_blknum(new_fragment),
-				goal, uspi->s_fpb, err, locked_page);
+				goal, nfrags, err, locked_page);
 
 	if (!tmp) {
 		*err = -ENOSPC;
@@ -402,7 +403,9 @@ static int ufs_getfrag_block(struct inod
 
 	if (!create) {
 		phys64 = ufs_frag_map(inode, offsets, depth);
-		goto out;
+		if (phys64)
+			map_bh(bh_result, sb, phys64 + frag);
+		return 0;
 	}
 
         /* This code entered only while writing ....? */
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ufs/super.c linux-libre-4.4.107-gnu/fs/ufs/super.c
--- linux-libre-4.4-gnu/fs/ufs/super.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/ufs/super.c	2017-12-20 04:05:01.000000000 -0500
@@ -746,6 +746,23 @@ static void ufs_put_super(struct super_b
 	return;
 }
 
+static u64 ufs_max_bytes(struct super_block *sb)
+{
+	struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi;
+	int bits = uspi->s_apbshift;
+	u64 res;
+
+	if (bits > 21)
+		res = ~0ULL;
+	else
+		res = UFS_NDADDR + (1LL << bits) + (1LL << (2*bits)) +
+			(1LL << (3*bits));
+
+	if (res >= (MAX_LFS_FILESIZE >> uspi->s_bshift))
+		return MAX_LFS_FILESIZE;
+	return res << uspi->s_bshift;
+}
+
 static int ufs_fill_super(struct super_block *sb, void *data, int silent)
 {
 	struct ufs_sb_info * sbi;
@@ -1212,6 +1229,7 @@ magic_found:
 			    "fast symlink size (%u)\n", uspi->s_maxsymlinklen);
 		uspi->s_maxsymlinklen = maxsymlen;
 	}
+	sb->s_maxbytes = ufs_max_bytes(sb);
 	sb->s_max_links = UFS_LINK_MAX;
 
 	inode = ufs_iget(sb, UFS_ROOTINO);
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/ufs/util.h linux-libre-4.4.107-gnu/fs/ufs/util.h
--- linux-libre-4.4-gnu/fs/ufs/util.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/ufs/util.h	2017-12-20 04:05:01.000000000 -0500
@@ -473,15 +473,19 @@ static inline unsigned _ubh_find_last_ze
 static inline int _ubh_isblockset_(struct ufs_sb_private_info * uspi,
 	struct ufs_buffer_head * ubh, unsigned begin, unsigned block)
 {
+	u8 mask;
 	switch (uspi->s_fpb) {
 	case 8:
 	    	return (*ubh_get_addr (ubh, begin + block) == 0xff);
 	case 4:
-		return (*ubh_get_addr (ubh, begin + (block >> 1)) == (0x0f << ((block & 0x01) << 2)));
+		mask = 0x0f << ((block & 0x01) << 2);
+		return (*ubh_get_addr (ubh, begin + (block >> 1)) & mask) == mask;
 	case 2:
-		return (*ubh_get_addr (ubh, begin + (block >> 2)) == (0x03 << ((block & 0x03) << 1)));
+		mask = 0x03 << ((block & 0x03) << 1);
+		return (*ubh_get_addr (ubh, begin + (block >> 2)) & mask) == mask;
 	case 1:
-		return (*ubh_get_addr (ubh, begin + (block >> 3)) == (0x01 << (block & 0x07)));
+		mask = 0x01 << (block & 0x07);
+		return (*ubh_get_addr (ubh, begin + (block >> 3)) & mask) == mask;
 	}
 	return 0;	
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/userfaultfd.c linux-libre-4.4.107-gnu/fs/userfaultfd.c
--- linux-libre-4.4-gnu/fs/userfaultfd.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/userfaultfd.c	2017-12-20 04:05:01.000000000 -0500
@@ -287,6 +287,12 @@ int handle_userfault(struct vm_area_stru
 		goto out;
 
 	/*
+	 * We don't do userfault handling for the final child pid update.
+	 */
+	if (current->flags & PF_EXITING)
+		goto out;
+
+	/*
 	 * Check that we can return VM_FAULT_RETRY.
 	 *
 	 * NOTE: it should become possible to return VM_FAULT_RETRY
@@ -380,7 +386,7 @@ int handle_userfault(struct vm_area_stru
 			 * in such case.
 			 */
 			down_read(&mm->mmap_sem);
-			ret = 0;
+			ret = VM_FAULT_NOPAGE;
 		}
 	}
 
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/utimes.c linux-libre-4.4.107-gnu/fs/utimes.c
--- linux-libre-4.4-gnu/fs/utimes.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/utimes.c	2017-12-20 04:05:01.000000000 -0500
@@ -87,20 +87,7 @@ static int utimes_common(struct path *pa
 		 */
 		newattrs.ia_valid |= ATTR_TIMES_SET;
 	} else {
-		/*
-		 * If times is NULL (or both times are UTIME_NOW),
-		 * then we need to check permissions, because
-		 * inode_change_ok() won't do it.
-		 */
-		error = -EACCES;
-                if (IS_IMMUTABLE(inode))
-			goto mnt_drop_write_and_out;
-
-		if (!inode_owner_or_capable(inode)) {
-			error = inode_permission(inode, MAY_WRITE);
-			if (error)
-				goto mnt_drop_write_and_out;
-		}
+		newattrs.ia_valid |= ATTR_TOUCH;
 	}
 retry_deleg:
 	mutex_lock(&inode->i_mutex);
@@ -112,7 +99,6 @@ retry_deleg:
 			goto retry_deleg;
 	}
 
-mnt_drop_write_and_out:
 	mnt_drop_write(path->mnt);
 out:
 	return error;
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/xattr.c linux-libre-4.4.107-gnu/fs/xattr.c
--- linux-libre-4.4-gnu/fs/xattr.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/xattr.c	2017-12-20 04:05:01.000000000 -0500
@@ -163,7 +163,7 @@ xattr_getsecurity(struct inode *inode, c
 	}
 	memcpy(value, buffer, len);
 out:
-	security_release_secctx(buffer, len);
+	kfree(buffer);
 out_noalloc:
 	return len;
 }
@@ -442,7 +442,7 @@ getxattr(struct dentry *d, const char __
 			size = XATTR_SIZE_MAX;
 		kvalue = kzalloc(size, GFP_KERNEL | __GFP_NOWARN);
 		if (!kvalue) {
-			vvalue = vmalloc(size);
+			vvalue = vzalloc(size);
 			if (!vvalue)
 				return -ENOMEM;
 			kvalue = vvalue;
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/xfs/kmem.c linux-libre-4.4.107-gnu/fs/xfs/kmem.c
--- linux-libre-4.4-gnu/fs/xfs/kmem.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/xfs/kmem.c	2017-12-20 04:05:01.000000000 -0500
@@ -24,24 +24,6 @@
 #include "kmem.h"
 #include "xfs_message.h"
 
-/*
- * Greedy allocation.  May fail and may return vmalloced memory.
- */
-void *
-kmem_zalloc_greedy(size_t *size, size_t minsize, size_t maxsize)
-{
-	void		*ptr;
-	size_t		kmsize = maxsize;
-
-	while (!(ptr = vzalloc(kmsize))) {
-		if ((kmsize >>= 1) <= minsize)
-			kmsize = minsize;
-	}
-	if (ptr)
-		*size = kmsize;
-	return ptr;
-}
-
 void *
 kmem_alloc(size_t size, xfs_km_flags_t flags)
 {
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/xfs/kmem.h linux-libre-4.4.107-gnu/fs/xfs/kmem.h
--- linux-libre-4.4-gnu/fs/xfs/kmem.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/xfs/kmem.h	2017-12-20 04:05:01.000000000 -0500
@@ -69,8 +69,6 @@ static inline void  kmem_free(const void
 }
 
 
-extern void *kmem_zalloc_greedy(size_t *, size_t, size_t);
-
 static inline void *
 kmem_zalloc(size_t size, xfs_km_flags_t flags)
 {
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/xfs/libxfs/xfs_alloc_btree.c linux-libre-4.4.107-gnu/fs/xfs/libxfs/xfs_alloc_btree.c
--- linux-libre-4.4-gnu/fs/xfs/libxfs/xfs_alloc_btree.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/xfs/libxfs/xfs_alloc_btree.c	2017-12-20 04:05:01.000000000 -0500
@@ -379,6 +379,7 @@ xfs_allocbt_write_verify(
 }
 
 const struct xfs_buf_ops xfs_allocbt_buf_ops = {
+	.name = "xfs_allocbt",
 	.verify_read = xfs_allocbt_read_verify,
 	.verify_write = xfs_allocbt_write_verify,
 };
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/xfs/libxfs/xfs_alloc.c linux-libre-4.4.107-gnu/fs/xfs/libxfs/xfs_alloc.c
--- linux-libre-4.4-gnu/fs/xfs/libxfs/xfs_alloc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/xfs/libxfs/xfs_alloc.c	2017-12-20 04:05:01.000000000 -0500
@@ -535,6 +535,7 @@ xfs_agfl_write_verify(
 }
 
 const struct xfs_buf_ops xfs_agfl_buf_ops = {
+	.name = "xfs_agfl",
 	.verify_read = xfs_agfl_read_verify,
 	.verify_write = xfs_agfl_write_verify,
 };
@@ -2339,6 +2340,7 @@ xfs_agf_write_verify(
 }
 
 const struct xfs_buf_ops xfs_agf_buf_ops = {
+	.name = "xfs_agf",
 	.verify_read = xfs_agf_read_verify,
 	.verify_write = xfs_agf_write_verify,
 };
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/xfs/libxfs/xfs_attr_leaf.c linux-libre-4.4.107-gnu/fs/xfs/libxfs/xfs_attr_leaf.c
--- linux-libre-4.4-gnu/fs/xfs/libxfs/xfs_attr_leaf.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/xfs/libxfs/xfs_attr_leaf.c	2017-12-20 04:05:01.000000000 -0500
@@ -328,6 +328,7 @@ xfs_attr3_leaf_read_verify(
 }
 
 const struct xfs_buf_ops xfs_attr3_leaf_buf_ops = {
+	.name = "xfs_attr3_leaf",
 	.verify_read = xfs_attr3_leaf_read_verify,
 	.verify_write = xfs_attr3_leaf_write_verify,
 };
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/xfs/libxfs/xfs_attr_remote.c linux-libre-4.4.107-gnu/fs/xfs/libxfs/xfs_attr_remote.c
--- linux-libre-4.4-gnu/fs/xfs/libxfs/xfs_attr_remote.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/xfs/libxfs/xfs_attr_remote.c	2017-12-20 04:05:01.000000000 -0500
@@ -201,6 +201,7 @@ xfs_attr3_rmt_write_verify(
 }
 
 const struct xfs_buf_ops xfs_attr3_rmt_buf_ops = {
+	.name = "xfs_attr3_rmt",
 	.verify_read = xfs_attr3_rmt_read_verify,
 	.verify_write = xfs_attr3_rmt_write_verify,
 };
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/xfs/libxfs/xfs_bmap_btree.c linux-libre-4.4.107-gnu/fs/xfs/libxfs/xfs_bmap_btree.c
--- linux-libre-4.4-gnu/fs/xfs/libxfs/xfs_bmap_btree.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/xfs/libxfs/xfs_bmap_btree.c	2017-12-20 04:05:01.000000000 -0500
@@ -720,6 +720,7 @@ xfs_bmbt_write_verify(
 }
 
 const struct xfs_buf_ops xfs_bmbt_buf_ops = {
+	.name = "xfs_bmbt",
 	.verify_read = xfs_bmbt_read_verify,
 	.verify_write = xfs_bmbt_write_verify,
 };
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/xfs/libxfs/xfs_bmap.c linux-libre-4.4.107-gnu/fs/xfs/libxfs/xfs_bmap.c
--- linux-libre-4.4-gnu/fs/xfs/libxfs/xfs_bmap.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/xfs/libxfs/xfs_bmap.c	2017-12-20 04:05:01.000000000 -0500
@@ -2179,8 +2179,10 @@ xfs_bmap_add_extent_delay_real(
 		}
 		temp = xfs_bmap_worst_indlen(bma->ip, temp);
 		temp2 = xfs_bmap_worst_indlen(bma->ip, temp2);
-		diff = (int)(temp + temp2 - startblockval(PREV.br_startblock) -
-			(bma->cur ? bma->cur->bc_private.b.allocated : 0));
+		diff = (int)(temp + temp2 -
+			     (startblockval(PREV.br_startblock) -
+			      (bma->cur ?
+			       bma->cur->bc_private.b.allocated : 0)));
 		if (diff > 0) {
 			error = xfs_mod_fdblocks(bma->ip->i_mount,
 						 -((int64_t)diff), false);
@@ -2232,7 +2234,6 @@ xfs_bmap_add_extent_delay_real(
 		temp = da_new;
 		if (bma->cur)
 			temp += bma->cur->bc_private.b.allocated;
-		ASSERT(temp <= da_old);
 		if (temp < da_old)
 			xfs_mod_fdblocks(bma->ip->i_mount,
 					(int64_t)(da_old - temp), false);
@@ -2669,7 +2670,7 @@ xfs_bmap_add_extent_unwritten_real(
 					&i)))
 				goto done;
 			XFS_WANT_CORRUPTED_GOTO(mp, i == 0, done);
-			cur->bc_rec.b.br_state = XFS_EXT_NORM;
+			cur->bc_rec.b.br_state = new->br_state;
 			if ((error = xfs_btree_insert(cur, &i)))
 				goto done;
 			XFS_WANT_CORRUPTED_GOTO(mp, i == 1, done);
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/xfs/libxfs/xfs_btree.c linux-libre-4.4.107-gnu/fs/xfs/libxfs/xfs_btree.c
--- linux-libre-4.4-gnu/fs/xfs/libxfs/xfs_btree.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/xfs/libxfs/xfs_btree.c	2017-12-20 04:05:01.000000000 -0500
@@ -4064,7 +4064,7 @@ xfs_btree_change_owner(
 			xfs_btree_readahead_ptr(cur, ptr, 1);
 
 			/* save for the next iteration of the loop */
-			lptr = *ptr;
+			xfs_btree_copy_ptrs(cur, &lptr, ptr, 1);
 		}
 
 		/* for each buffer in the level */
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/xfs/libxfs/xfs_da_btree.c linux-libre-4.4.107-gnu/fs/xfs/libxfs/xfs_da_btree.c
--- linux-libre-4.4-gnu/fs/xfs/libxfs/xfs_da_btree.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/xfs/libxfs/xfs_da_btree.c	2017-12-20 04:05:01.000000000 -0500
@@ -245,6 +245,7 @@ xfs_da3_node_read_verify(
 }
 
 const struct xfs_buf_ops xfs_da3_node_buf_ops = {
+	.name = "xfs_da3_node",
 	.verify_read = xfs_da3_node_read_verify,
 	.verify_write = xfs_da3_node_write_verify,
 };
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/xfs/libxfs/xfs_dir2_block.c linux-libre-4.4.107-gnu/fs/xfs/libxfs/xfs_dir2_block.c
--- linux-libre-4.4-gnu/fs/xfs/libxfs/xfs_dir2_block.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/xfs/libxfs/xfs_dir2_block.c	2017-12-20 04:05:01.000000000 -0500
@@ -123,6 +123,7 @@ xfs_dir3_block_write_verify(
 }
 
 const struct xfs_buf_ops xfs_dir3_block_buf_ops = {
+	.name = "xfs_dir3_block",
 	.verify_read = xfs_dir3_block_read_verify,
 	.verify_write = xfs_dir3_block_write_verify,
 };
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/xfs/libxfs/xfs_dir2_data.c linux-libre-4.4.107-gnu/fs/xfs/libxfs/xfs_dir2_data.c
--- linux-libre-4.4-gnu/fs/xfs/libxfs/xfs_dir2_data.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/xfs/libxfs/xfs_dir2_data.c	2017-12-20 04:05:01.000000000 -0500
@@ -305,11 +305,13 @@ xfs_dir3_data_write_verify(
 }
 
 const struct xfs_buf_ops xfs_dir3_data_buf_ops = {
+	.name = "xfs_dir3_data",
 	.verify_read = xfs_dir3_data_read_verify,
 	.verify_write = xfs_dir3_data_write_verify,
 };
 
 static const struct xfs_buf_ops xfs_dir3_data_reada_buf_ops = {
+	.name = "xfs_dir3_data_reada",
 	.verify_read = xfs_dir3_data_reada_verify,
 	.verify_write = xfs_dir3_data_write_verify,
 };
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/xfs/libxfs/xfs_dir2_leaf.c linux-libre-4.4.107-gnu/fs/xfs/libxfs/xfs_dir2_leaf.c
--- linux-libre-4.4-gnu/fs/xfs/libxfs/xfs_dir2_leaf.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/xfs/libxfs/xfs_dir2_leaf.c	2017-12-20 04:05:01.000000000 -0500
@@ -245,11 +245,13 @@ xfs_dir3_leafn_write_verify(
 }
 
 const struct xfs_buf_ops xfs_dir3_leaf1_buf_ops = {
+	.name = "xfs_dir3_leaf1",
 	.verify_read = xfs_dir3_leaf1_read_verify,
 	.verify_write = xfs_dir3_leaf1_write_verify,
 };
 
 const struct xfs_buf_ops xfs_dir3_leafn_buf_ops = {
+	.name = "xfs_dir3_leafn",
 	.verify_read = xfs_dir3_leafn_read_verify,
 	.verify_write = xfs_dir3_leafn_write_verify,
 };
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/xfs/libxfs/xfs_dir2_node.c linux-libre-4.4.107-gnu/fs/xfs/libxfs/xfs_dir2_node.c
--- linux-libre-4.4-gnu/fs/xfs/libxfs/xfs_dir2_node.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/xfs/libxfs/xfs_dir2_node.c	2017-12-20 04:05:01.000000000 -0500
@@ -150,6 +150,7 @@ xfs_dir3_free_write_verify(
 }
 
 const struct xfs_buf_ops xfs_dir3_free_buf_ops = {
+	.name = "xfs_dir3_free",
 	.verify_read = xfs_dir3_free_read_verify,
 	.verify_write = xfs_dir3_free_write_verify,
 };
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/xfs/libxfs/xfs_dquot_buf.c linux-libre-4.4.107-gnu/fs/xfs/libxfs/xfs_dquot_buf.c
--- linux-libre-4.4-gnu/fs/xfs/libxfs/xfs_dquot_buf.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/xfs/libxfs/xfs_dquot_buf.c	2017-12-20 04:05:01.000000000 -0500
@@ -54,7 +54,7 @@ xfs_dqcheck(
 	xfs_dqid_t	 id,
 	uint		 type,	  /* used only when IO_dorepair is true */
 	uint		 flags,
-	char		 *str)
+	const char	 *str)
 {
 	xfs_dqblk_t	 *d = (xfs_dqblk_t *)ddq;
 	int		errs = 0;
@@ -191,8 +191,7 @@ xfs_dquot_buf_verify_crc(
 	if (mp->m_quotainfo)
 		ndquots = mp->m_quotainfo->qi_dqperchunk;
 	else
-		ndquots = xfs_calc_dquots_per_chunk(
-					XFS_BB_TO_FSB(mp, bp->b_length));
+		ndquots = xfs_calc_dquots_per_chunk(bp->b_length);
 
 	for (i = 0; i < ndquots; i++, d++) {
 		if (!xfs_verify_cksum((char *)d, sizeof(struct xfs_dqblk),
@@ -207,7 +206,8 @@ xfs_dquot_buf_verify_crc(
 STATIC bool
 xfs_dquot_buf_verify(
 	struct xfs_mount	*mp,
-	struct xfs_buf		*bp)
+	struct xfs_buf		*bp,
+	int			warn)
 {
 	struct xfs_dqblk	*d = (struct xfs_dqblk *)bp->b_addr;
 	xfs_dqid_t		id = 0;
@@ -240,8 +240,7 @@ xfs_dquot_buf_verify(
 		if (i == 0)
 			id = be32_to_cpu(ddq->d_id);
 
-		error = xfs_dqcheck(mp, ddq, id + i, 0, XFS_QMOPT_DOWARN,
-				       "xfs_dquot_buf_verify");
+		error = xfs_dqcheck(mp, ddq, id + i, 0, warn, __func__);
 		if (error)
 			return false;
 	}
@@ -256,7 +255,7 @@ xfs_dquot_buf_read_verify(
 
 	if (!xfs_dquot_buf_verify_crc(mp, bp))
 		xfs_buf_ioerror(bp, -EFSBADCRC);
-	else if (!xfs_dquot_buf_verify(mp, bp))
+	else if (!xfs_dquot_buf_verify(mp, bp, XFS_QMOPT_DOWARN))
 		xfs_buf_ioerror(bp, -EFSCORRUPTED);
 
 	if (bp->b_error)
@@ -264,6 +263,25 @@ xfs_dquot_buf_read_verify(
 }
 
 /*
+ * readahead errors are silent and simply leave the buffer as !done so a real
+ * read will then be run with the xfs_dquot_buf_ops verifier. See
+ * xfs_inode_buf_verify() for why we use EIO and ~XBF_DONE here rather than
+ * reporting the failure.
+ */
+static void
+xfs_dquot_buf_readahead_verify(
+	struct xfs_buf	*bp)
+{
+	struct xfs_mount	*mp = bp->b_target->bt_mount;
+
+	if (!xfs_dquot_buf_verify_crc(mp, bp) ||
+	    !xfs_dquot_buf_verify(mp, bp, 0)) {
+		xfs_buf_ioerror(bp, -EIO);
+		bp->b_flags &= ~XBF_DONE;
+	}
+}
+
+/*
  * we don't calculate the CRC here as that is done when the dquot is flushed to
  * the buffer after the update is done. This ensures that the dquot in the
  * buffer always has an up-to-date CRC value.
@@ -274,7 +292,7 @@ xfs_dquot_buf_write_verify(
 {
 	struct xfs_mount	*mp = bp->b_target->bt_mount;
 
-	if (!xfs_dquot_buf_verify(mp, bp)) {
+	if (!xfs_dquot_buf_verify(mp, bp, XFS_QMOPT_DOWARN)) {
 		xfs_buf_ioerror(bp, -EFSCORRUPTED);
 		xfs_verifier_error(bp);
 		return;
@@ -282,7 +300,13 @@ xfs_dquot_buf_write_verify(
 }
 
 const struct xfs_buf_ops xfs_dquot_buf_ops = {
+	.name = "xfs_dquot",
 	.verify_read = xfs_dquot_buf_read_verify,
 	.verify_write = xfs_dquot_buf_write_verify,
 };
 
+const struct xfs_buf_ops xfs_dquot_buf_ra_ops = {
+	.name = "xfs_dquot_ra",
+	.verify_read = xfs_dquot_buf_readahead_verify,
+	.verify_write = xfs_dquot_buf_write_verify,
+};
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/xfs/libxfs/xfs_format.h linux-libre-4.4.107-gnu/fs/xfs/libxfs/xfs_format.h
--- linux-libre-4.4-gnu/fs/xfs/libxfs/xfs_format.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/xfs/libxfs/xfs_format.h	2017-12-20 04:05:01.000000000 -0500
@@ -786,7 +786,7 @@ typedef struct xfs_agfl {
 	__be64		agfl_lsn;
 	__be32		agfl_crc;
 	__be32		agfl_bno[];	/* actually XFS_AGFL_SIZE(mp) */
-} xfs_agfl_t;
+} __attribute__((packed)) xfs_agfl_t;
 
 #define XFS_AGFL_CRC_OFF	offsetof(struct xfs_agfl, agfl_crc)
 
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/xfs/libxfs/xfs_ialloc_btree.c linux-libre-4.4.107-gnu/fs/xfs/libxfs/xfs_ialloc_btree.c
--- linux-libre-4.4-gnu/fs/xfs/libxfs/xfs_ialloc_btree.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/xfs/libxfs/xfs_ialloc_btree.c	2017-12-20 04:05:01.000000000 -0500
@@ -304,6 +304,7 @@ xfs_inobt_write_verify(
 }
 
 const struct xfs_buf_ops xfs_inobt_buf_ops = {
+	.name = "xfs_inobt",
 	.verify_read = xfs_inobt_read_verify,
 	.verify_write = xfs_inobt_write_verify,
 };
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/xfs/libxfs/xfs_ialloc.c linux-libre-4.4.107-gnu/fs/xfs/libxfs/xfs_ialloc.c
--- linux-libre-4.4-gnu/fs/xfs/libxfs/xfs_ialloc.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/xfs/libxfs/xfs_ialloc.c	2017-12-20 04:05:01.000000000 -0500
@@ -2572,6 +2572,7 @@ xfs_agi_write_verify(
 }
 
 const struct xfs_buf_ops xfs_agi_buf_ops = {
+	.name = "xfs_agi",
 	.verify_read = xfs_agi_read_verify,
 	.verify_write = xfs_agi_write_verify,
 };
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/xfs/libxfs/xfs_inode_buf.c linux-libre-4.4.107-gnu/fs/xfs/libxfs/xfs_inode_buf.c
--- linux-libre-4.4-gnu/fs/xfs/libxfs/xfs_inode_buf.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/xfs/libxfs/xfs_inode_buf.c	2017-12-20 04:05:01.000000000 -0500
@@ -62,11 +62,14 @@ xfs_inobp_check(
  * has not had the inode cores stamped into it. Hence for readahead, the buffer
  * may be potentially invalid.
  *
- * If the readahead buffer is invalid, we don't want to mark it with an error,
- * but we do want to clear the DONE status of the buffer so that a followup read
- * will re-read it from disk. This will ensure that we don't get an unnecessary
- * warnings during log recovery and we don't get unnecssary panics on debug
- * kernels.
+ * If the readahead buffer is invalid, we need to mark it with an error and
+ * clear the DONE status of the buffer so that a followup read will re-read it
+ * from disk. We don't report the error otherwise to avoid warnings during log
+ * recovery and we don't get unnecssary panics on debug kernels. We use EIO here
+ * because all we want to do is say readahead failed; there is no-one to report
+ * the error to, so this will distinguish it from a non-ra verifier failure.
+ * Changes to this readahead error behavour also need to be reflected in
+ * xfs_dquot_buf_readahead_verify().
  */
 static void
 xfs_inode_buf_verify(
@@ -93,6 +96,7 @@ xfs_inode_buf_verify(
 						XFS_RANDOM_ITOBP_INOTOBP))) {
 			if (readahead) {
 				bp->b_flags &= ~XBF_DONE;
+				xfs_buf_ioerror(bp, -EIO);
 				return;
 			}
 
@@ -132,11 +136,13 @@ xfs_inode_buf_write_verify(
 }
 
 const struct xfs_buf_ops xfs_inode_buf_ops = {
+	.name = "xfs_inode",
 	.verify_read = xfs_inode_buf_read_verify,
 	.verify_write = xfs_inode_buf_write_verify,
 };
 
 const struct xfs_buf_ops xfs_inode_buf_ra_ops = {
+	.name = "xxfs_inode_ra",
 	.verify_read = xfs_inode_buf_readahead_verify,
 	.verify_write = xfs_inode_buf_write_verify,
 };
@@ -293,6 +299,14 @@ xfs_dinode_verify(
 	if (dip->di_magic != cpu_to_be16(XFS_DINODE_MAGIC))
 		return false;
 
+	/* don't allow invalid i_size */
+	if (be64_to_cpu(dip->di_size) & (1ULL << 63))
+		return false;
+
+	/* No zero-length symlinks. */
+	if (S_ISLNK(be16_to_cpu(dip->di_mode)) && dip->di_size == 0)
+		return false;
+
 	/* only version 3 or greater inodes are extensively verified here */
 	if (dip->di_version < 3)
 		return true;
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/xfs/libxfs/xfs_quota_defs.h linux-libre-4.4.107-gnu/fs/xfs/libxfs/xfs_quota_defs.h
--- linux-libre-4.4-gnu/fs/xfs/libxfs/xfs_quota_defs.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/xfs/libxfs/xfs_quota_defs.h	2017-12-20 04:05:01.000000000 -0500
@@ -153,7 +153,7 @@ typedef __uint16_t	xfs_qwarncnt_t;
 #define XFS_QMOPT_RESBLK_MASK	(XFS_QMOPT_RES_REGBLKS | XFS_QMOPT_RES_RTBLKS)
 
 extern int xfs_dqcheck(struct xfs_mount *mp, xfs_disk_dquot_t *ddq,
-		       xfs_dqid_t id, uint type, uint flags, char *str);
+		       xfs_dqid_t id, uint type, uint flags, const char *str);
 extern int xfs_calc_dquots_per_chunk(unsigned int nbblks);
 
 #endif	/* __XFS_QUOTA_H__ */
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/xfs/libxfs/xfs_sb.c linux-libre-4.4.107-gnu/fs/xfs/libxfs/xfs_sb.c
--- linux-libre-4.4-gnu/fs/xfs/libxfs/xfs_sb.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/xfs/libxfs/xfs_sb.c	2017-12-20 04:05:01.000000000 -0500
@@ -581,7 +581,8 @@ xfs_sb_verify(
 	 * Only check the in progress field for the primary superblock as
 	 * mkfs.xfs doesn't clear it from secondary superblocks.
 	 */
-	return xfs_mount_validate_sb(mp, &sb, bp->b_bn == XFS_SB_DADDR,
+	return xfs_mount_validate_sb(mp, &sb,
+				     bp->b_maps[0].bm_bn == XFS_SB_DADDR,
 				     check_version);
 }
 
@@ -679,11 +680,13 @@ xfs_sb_write_verify(
 }
 
 const struct xfs_buf_ops xfs_sb_buf_ops = {
+	.name = "xfs_sb",
 	.verify_read = xfs_sb_read_verify,
 	.verify_write = xfs_sb_write_verify,
 };
 
 const struct xfs_buf_ops xfs_sb_quiet_buf_ops = {
+	.name = "xfs_sb_quiet",
 	.verify_read = xfs_sb_quiet_read_verify,
 	.verify_write = xfs_sb_write_verify,
 };
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/xfs/libxfs/xfs_shared.h linux-libre-4.4.107-gnu/fs/xfs/libxfs/xfs_shared.h
--- linux-libre-4.4-gnu/fs/xfs/libxfs/xfs_shared.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/xfs/libxfs/xfs_shared.h	2017-12-20 04:05:01.000000000 -0500
@@ -49,6 +49,7 @@ extern const struct xfs_buf_ops xfs_inob
 extern const struct xfs_buf_ops xfs_inode_buf_ops;
 extern const struct xfs_buf_ops xfs_inode_buf_ra_ops;
 extern const struct xfs_buf_ops xfs_dquot_buf_ops;
+extern const struct xfs_buf_ops xfs_dquot_buf_ra_ops;
 extern const struct xfs_buf_ops xfs_sb_buf_ops;
 extern const struct xfs_buf_ops xfs_sb_quiet_buf_ops;
 extern const struct xfs_buf_ops xfs_symlink_buf_ops;
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/xfs/libxfs/xfs_symlink_remote.c linux-libre-4.4.107-gnu/fs/xfs/libxfs/xfs_symlink_remote.c
--- linux-libre-4.4-gnu/fs/xfs/libxfs/xfs_symlink_remote.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/xfs/libxfs/xfs_symlink_remote.c	2017-12-20 04:05:01.000000000 -0500
@@ -168,6 +168,7 @@ xfs_symlink_write_verify(
 }
 
 const struct xfs_buf_ops xfs_symlink_buf_ops = {
+	.name = "xfs_symlink",
 	.verify_read = xfs_symlink_read_verify,
 	.verify_write = xfs_symlink_write_verify,
 };
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/xfs/xfs_acl.c linux-libre-4.4.107-gnu/fs/xfs/xfs_acl.c
--- linux-libre-4.4-gnu/fs/xfs/xfs_acl.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/xfs/xfs_acl.c	2017-12-20 04:05:01.000000000 -0500
@@ -288,16 +288,11 @@ xfs_set_acl(struct inode *inode, struct
 		return error;
 
 	if (type == ACL_TYPE_ACCESS) {
-		umode_t mode = inode->i_mode;
-		error = posix_acl_equiv_mode(acl, &mode);
-
-		if (error <= 0) {
-			acl = NULL;
-
-			if (error < 0)
-				return error;
-		}
+		umode_t mode;
 
+		error = posix_acl_update_mode(inode, &mode, &acl);
+		if (error)
+			return error;
 		error = xfs_set_mode(inode, mode);
 		if (error)
 			return error;
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/xfs/xfs_aops.c linux-libre-4.4.107-gnu/fs/xfs/xfs_aops.c
--- linux-libre-4.4-gnu/fs/xfs/xfs_aops.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/xfs/xfs_aops.c	2017-12-20 04:05:01.000000000 -0500
@@ -288,7 +288,7 @@ xfs_map_blocks(
 {
 	struct xfs_inode	*ip = XFS_I(inode);
 	struct xfs_mount	*mp = ip->i_mount;
-	ssize_t			count = 1 << inode->i_blkbits;
+	ssize_t			count = i_blocksize(inode);
 	xfs_fileoff_t		offset_fsb, end_fsb;
 	int			error = 0;
 	int			bmapi_flags = XFS_BMAPI_ENTIRE;
@@ -921,7 +921,7 @@ xfs_aops_discard_page(
 			break;
 		}
 next_buffer:
-		offset += 1 << inode->i_blkbits;
+		offset += i_blocksize(inode);
 
 	} while ((bh = bh->b_this_page) != head);
 
@@ -1363,7 +1363,7 @@ xfs_map_trim_size(
 	    offset + mapping_size >= i_size_read(inode)) {
 		/* limit mapping to block that spans EOF */
 		mapping_size = roundup_64(i_size_read(inode) - offset,
-					  1 << inode->i_blkbits);
+					  i_blocksize(inode));
 	}
 	if (mapping_size > LONG_MAX)
 		mapping_size = LONG_MAX;
@@ -1395,7 +1395,7 @@ __xfs_get_blocks(
 		return -EIO;
 
 	offset = (xfs_off_t)iblock << inode->i_blkbits;
-	ASSERT(bh_result->b_size >= (1 << inode->i_blkbits));
+	ASSERT(bh_result->b_size >= i_blocksize(inode));
 	size = bh_result->b_size;
 
 	if (!create && direct && offset >= i_size_read(inode))
@@ -1426,6 +1426,26 @@ __xfs_get_blocks(
 	if (error)
 		goto out_unlock;
 
+	/*
+	 * The only time we can ever safely find delalloc blocks on direct I/O
+	 * is a dio write to post-eof speculative preallocation. All other
+	 * scenarios are indicative of a problem or misuse (such as mixing
+	 * direct and mapped I/O).
+	 *
+	 * The file may be unmapped by the time we get here so we cannot
+	 * reliably fail the I/O based on mapping. Instead, fail the I/O if this
+	 * is a read or a write within eof. Otherwise, carry on but warn as a
+	 * precuation if the file happens to be mapped.
+	 */
+	if (direct && imap.br_startblock == DELAYSTARTBLOCK) {
+	        if (!create || offset < i_size_read(VFS_I(ip))) {
+	                WARN_ON_ONCE(1);
+	                error = -EIO;
+	                goto out_unlock;
+	        }
+	        WARN_ON_ONCE(mapping_mapped(VFS_I(ip)->i_mapping));
+	}
+
 	/* for DAX, we convert unwritten extents directly */
 	if (create &&
 	    (!nimaps ||
@@ -1525,7 +1545,6 @@ __xfs_get_blocks(
 		set_buffer_new(bh_result);
 
 	if (imap.br_startblock == DELAYSTARTBLOCK) {
-		BUG_ON(direct);
 		if (create) {
 			set_buffer_uptodate(bh_result);
 			set_buffer_mapped(bh_result);
@@ -1968,7 +1987,7 @@ xfs_vm_set_page_dirty(
 			if (offset < end_offset)
 				set_buffer_dirty(bh);
 			bh = bh->b_this_page;
-			offset += 1 << inode->i_blkbits;
+			offset += i_blocksize(inode);
 		} while (bh != head);
 	}
 	/*
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/xfs/xfs_attr.h linux-libre-4.4.107-gnu/fs/xfs/xfs_attr.h
--- linux-libre-4.4-gnu/fs/xfs/xfs_attr.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/xfs/xfs_attr.h	2017-12-20 04:05:01.000000000 -0500
@@ -112,6 +112,7 @@ typedef struct attrlist_cursor_kern {
  *========================================================================*/
 
 
+/* Return 0 on success, or -errno; other state communicated via *context */
 typedef int (*put_listent_func_t)(struct xfs_attr_list_context *, int,
 			      unsigned char *, int, int, unsigned char *);
 
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/xfs/xfs_attr_list.c linux-libre-4.4.107-gnu/fs/xfs/xfs_attr_list.c
--- linux-libre-4.4-gnu/fs/xfs/xfs_attr_list.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/xfs/xfs_attr_list.c	2017-12-20 04:05:01.000000000 -0500
@@ -108,16 +108,14 @@ xfs_attr_shortform_list(xfs_attr_list_co
 					   (int)sfe->namelen,
 					   (int)sfe->valuelen,
 					   &sfe->nameval[sfe->namelen]);
-
+			if (error)
+				return error;
 			/*
 			 * Either search callback finished early or
 			 * didn't fit it all in the buffer after all.
 			 */
 			if (context->seen_enough)
 				break;
-
-			if (error)
-				return error;
 			sfe = XFS_ATTR_SF_NEXTENTRY(sfe);
 		}
 		trace_xfs_attr_list_sf_all(context);
@@ -202,8 +200,10 @@ xfs_attr_shortform_list(xfs_attr_list_co
 					sbp->namelen,
 					sbp->valuelen,
 					&sbp->name[sbp->namelen]);
-		if (error)
+		if (error) {
+			kmem_free(sbuf);
 			return error;
+		}
 		if (context->seen_enough)
 			break;
 		cursor->offset++;
@@ -454,14 +454,13 @@ xfs_attr3_leaf_list_int(
 				args.rmtblkcnt = xfs_attr3_rmt_blocks(
 							args.dp->i_mount, valuelen);
 				retval = xfs_attr_rmtval_get(&args);
-				if (retval)
-					return retval;
-				retval = context->put_listent(context,
-						entry->flags,
-						name_rmt->name,
-						(int)name_rmt->namelen,
-						valuelen,
-						args.value);
+				if (!retval)
+					retval = context->put_listent(context,
+							entry->flags,
+							name_rmt->name,
+							(int)name_rmt->namelen,
+							valuelen,
+							args.value);
 				kmem_free(args.value);
 			} else {
 				retval = context->put_listent(context,
@@ -580,7 +579,7 @@ xfs_attr_put_listent(
 		trace_xfs_attr_list_full(context);
 		alist->al_more = 1;
 		context->seen_enough = 1;
-		return 1;
+		return 0;
 	}
 
 	aep = (attrlist_ent_t *)&context->alist[context->firstu];
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/xfs/xfs_bmap_util.c linux-libre-4.4.107-gnu/fs/xfs/xfs_bmap_util.c
--- linux-libre-4.4-gnu/fs/xfs/xfs_bmap_util.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/xfs/xfs_bmap_util.c	2017-12-20 04:05:01.000000000 -0500
@@ -682,7 +682,7 @@ xfs_getbmap(
 			 * extents.
 			 */
 			if (map[i].br_startblock == DELAYSTARTBLOCK &&
-			    map[i].br_startoff <= XFS_B_TO_FSB(mp, XFS_ISIZE(ip)))
+			    map[i].br_startoff < XFS_B_TO_FSB(mp, XFS_ISIZE(ip)))
 				ASSERT((iflags & BMV_IF_DELALLOC) != 0);
 
                         if (map[i].br_startblock == HOLESTARTBLOCK &&
@@ -1713,6 +1713,7 @@ xfs_swap_extents(
 	xfs_trans_t	*tp;
 	xfs_bstat_t	*sbp = &sxp->sx_stat;
 	xfs_ifork_t	*tempifp, *ifp, *tifp;
+	xfs_extnum_t	nextents;
 	int		src_log_flags, target_log_flags;
 	int		error = 0;
 	int		aforkblks = 0;
@@ -1899,7 +1900,8 @@ xfs_swap_extents(
 		 * pointer.  Otherwise it's already NULL or
 		 * pointing to the extent.
 		 */
-		if (ip->i_d.di_nextents <= XFS_INLINE_EXTS) {
+		nextents = ip->i_df.if_bytes / (uint)sizeof(xfs_bmbt_rec_t);
+		if (nextents <= XFS_INLINE_EXTS) {
 			ifp->if_u1.if_extents =
 				ifp->if_u2.if_inline_ext;
 		}
@@ -1918,7 +1920,8 @@ xfs_swap_extents(
 		 * pointer.  Otherwise it's already NULL or
 		 * pointing to the extent.
 		 */
-		if (tip->i_d.di_nextents <= XFS_INLINE_EXTS) {
+		nextents = tip->i_df.if_bytes / (uint)sizeof(xfs_bmbt_rec_t);
+		if (nextents <= XFS_INLINE_EXTS) {
 			tifp->if_u1.if_extents =
 				tifp->if_u2.if_inline_ext;
 		}
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/xfs/xfs_buf.c linux-libre-4.4.107-gnu/fs/xfs/xfs_buf.c
--- linux-libre-4.4-gnu/fs/xfs/xfs_buf.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/xfs/xfs_buf.c	2017-12-20 04:05:01.000000000 -0500
@@ -375,6 +375,7 @@ retry:
 out_free_pages:
 	for (i = 0; i < bp->b_page_count; i++)
 		__free_page(bp->b_pages[i]);
+	bp->b_flags &= ~_XBF_PAGES;
 	return error;
 }
 
@@ -604,6 +605,13 @@ found:
 		}
 	}
 
+	/*
+	 * Clear b_error if this is a lookup from a caller that doesn't expect
+	 * valid data to be found in the buffer.
+	 */
+	if (!(flags & XBF_READ))
+		xfs_buf_ioerror(bp, 0);
+
 	XFS_STATS_INC(target->bt_mount, xb_get);
 	trace_xfs_buf_get(bp, flags, _RET_IP_);
 	return bp;
@@ -971,6 +979,8 @@ void
 xfs_buf_unlock(
 	struct xfs_buf		*bp)
 {
+	ASSERT(xfs_buf_islocked(bp));
+
 	XB_CLEAR_OWNER(bp);
 	up(&bp->b_sema);
 
@@ -1520,6 +1530,16 @@ xfs_wait_buftarg(
 	LIST_HEAD(dispose);
 	int loop = 0;
 
+	/*
+	 * We need to flush the buffer workqueue to ensure that all IO
+	 * completion processing is 100% done. Just waiting on buffer locks is
+	 * not sufficient for async IO as the reference count held over IO is
+	 * not released until after the buffer lock is dropped. Hence we need to
+	 * ensure here that all reference counts have been dropped before we
+	 * start walking the LRU list.
+	 */
+	flush_workqueue(btp->bt_mount->m_buf_workqueue);
+
 	/* loop until there is nothing left on the lru list. */
 	while (list_lru_count(&btp->bt_lru)) {
 		list_lru_walk(&btp->bt_lru, xfs_buftarg_wait_rele,
@@ -1695,6 +1715,28 @@ error:
 }
 
 /*
+ * Cancel a delayed write list.
+ *
+ * Remove each buffer from the list, clear the delwri queue flag and drop the
+ * associated buffer reference.
+ */
+void
+xfs_buf_delwri_cancel(
+	struct list_head	*list)
+{
+	struct xfs_buf		*bp;
+
+	while (!list_empty(list)) {
+		bp = list_first_entry(list, struct xfs_buf, b_list);
+
+		xfs_buf_lock(bp);
+		bp->b_flags &= ~_XBF_DELWRI_Q;
+		list_del_init(&bp->b_list);
+		xfs_buf_relse(bp);
+	}
+}
+
+/*
  * Add a buffer to the delayed write list.
  *
  * This queues a buffer for writeout if it hasn't already been.  Note that
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/xfs/xfs_buf.h linux-libre-4.4.107-gnu/fs/xfs/xfs_buf.h
--- linux-libre-4.4-gnu/fs/xfs/xfs_buf.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/xfs/xfs_buf.h	2017-12-20 04:05:01.000000000 -0500
@@ -132,6 +132,7 @@ struct xfs_buf_map {
 	struct xfs_buf_map (map) = { .bm_bn = (blkno), .bm_len = (numblk) };
 
 struct xfs_buf_ops {
+	char *name;
 	void (*verify_read)(struct xfs_buf *);
 	void (*verify_write)(struct xfs_buf *);
 };
@@ -303,6 +304,7 @@ extern void xfs_buf_iomove(xfs_buf_t *,
 extern void *xfs_buf_offset(struct xfs_buf *, size_t);
 
 /* Delayed Write Buffer Routines */
+extern void xfs_buf_delwri_cancel(struct list_head *);
 extern bool xfs_buf_delwri_queue(struct xfs_buf *, struct list_head *);
 extern int xfs_buf_delwri_submit(struct list_head *);
 extern int xfs_buf_delwri_submit_nowait(struct list_head *);
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/xfs/xfs_dir2_readdir.c linux-libre-4.4.107-gnu/fs/xfs/xfs_dir2_readdir.c
--- linux-libre-4.4-gnu/fs/xfs/xfs_dir2_readdir.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/xfs/xfs_dir2_readdir.c	2017-12-20 04:05:01.000000000 -0500
@@ -406,6 +406,7 @@ xfs_dir2_leaf_readbuf(
 
 	/*
 	 * Do we need more readahead?
+	 * Each loop tries to process 1 full dir blk; last may be partial.
 	 */
 	blk_start_plug(&plug);
 	for (mip->ra_index = mip->ra_offset = i = 0;
@@ -416,7 +417,8 @@ xfs_dir2_leaf_readbuf(
 		 * Read-ahead a contiguous directory block.
 		 */
 		if (i > mip->ra_current &&
-		    map[mip->ra_index].br_blockcount >= geo->fsbcount) {
+		    (map[mip->ra_index].br_blockcount - mip->ra_offset) >=
+		    geo->fsbcount) {
 			xfs_dir3_data_readahead(dp,
 				map[mip->ra_index].br_startoff + mip->ra_offset,
 				XFS_FSB_TO_DADDR(dp->i_mount,
@@ -437,14 +439,19 @@ xfs_dir2_leaf_readbuf(
 		}
 
 		/*
-		 * Advance offset through the mapping table.
+		 * Advance offset through the mapping table, processing a full
+		 * dir block even if it is fragmented into several extents.
+		 * But stop if we have consumed all valid mappings, even if
+		 * it's not yet a full directory block.
 		 */
-		for (j = 0; j < geo->fsbcount; j += length ) {
+		for (j = 0;
+		     j < geo->fsbcount && mip->ra_index < mip->map_valid;
+		     j += length ) {
 			/*
 			 * The rest of this extent but not more than a dir
 			 * block.
 			 */
-			length = min_t(int, geo->fsbcount,
+			length = min_t(int, geo->fsbcount - j,
 					map[mip->ra_index].br_blockcount -
 							mip->ra_offset);
 			mip->ra_offset += length;
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/xfs/xfs_error.c linux-libre-4.4.107-gnu/fs/xfs/xfs_error.c
--- linux-libre-4.4-gnu/fs/xfs/xfs_error.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/xfs/xfs_error.c	2017-12-20 04:05:01.000000000 -0500
@@ -164,9 +164,9 @@ xfs_verifier_error(
 {
 	struct xfs_mount *mp = bp->b_target->bt_mount;
 
-	xfs_alert(mp, "Metadata %s detected at %pF, block 0x%llx",
+	xfs_alert(mp, "Metadata %s detected at %pF, %s block 0x%llx",
 		  bp->b_error == -EFSBADCRC ? "CRC error" : "corruption",
-		  __return_address, bp->b_bn);
+		  __return_address, bp->b_ops->name, bp->b_bn);
 
 	xfs_alert(mp, "Unmount and run xfs_repair");
 
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/xfs/xfs_file.c linux-libre-4.4.107-gnu/fs/xfs/xfs_file.c
--- linux-libre-4.4-gnu/fs/xfs/xfs_file.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/xfs/xfs_file.c	2017-12-20 04:05:01.000000000 -0500
@@ -947,7 +947,7 @@ xfs_file_fallocate(
 		if (error)
 			goto out_unlock;
 	} else if (mode & FALLOC_FL_COLLAPSE_RANGE) {
-		unsigned blksize_mask = (1 << inode->i_blkbits) - 1;
+		unsigned int blksize_mask = i_blocksize(inode) - 1;
 
 		if (offset & blksize_mask || len & blksize_mask) {
 			error = -EINVAL;
@@ -969,7 +969,7 @@ xfs_file_fallocate(
 		if (error)
 			goto out_unlock;
 	} else if (mode & FALLOC_FL_INSERT_RANGE) {
-		unsigned blksize_mask = (1 << inode->i_blkbits) - 1;
+		unsigned int blksize_mask = i_blocksize(inode) - 1;
 
 		new_size = i_size_read(inode) + len;
 		if (offset & blksize_mask || len & blksize_mask) {
@@ -1208,7 +1208,7 @@ xfs_find_get_desired_pgoff(
 		unsigned	nr_pages;
 		unsigned int	i;
 
-		want = min_t(pgoff_t, end - index, PAGEVEC_SIZE);
+		want = min_t(pgoff_t, end - index, PAGEVEC_SIZE - 1) + 1;
 		nr_pages = pagevec_lookup(&pvec, inode->i_mapping, index,
 					  want);
 		/*
@@ -1235,17 +1235,6 @@ xfs_find_get_desired_pgoff(
 			break;
 		}
 
-		/*
-		 * At lease we found one page.  If this is the first time we
-		 * step into the loop, and if the first page index offset is
-		 * greater than the given search offset, a hole was found.
-		 */
-		if (type == HOLE_OFF && lastoff == startoff &&
-		    lastoff < page_offset(pvec.pages[0])) {
-			found = true;
-			break;
-		}
-
 		for (i = 0; i < nr_pages; i++) {
 			struct page	*page = pvec.pages[i];
 			loff_t		b_offset;
@@ -1257,18 +1246,18 @@ xfs_find_get_desired_pgoff(
 			 * file mapping. However, page->index will not change
 			 * because we have a reference on the page.
 			 *
-			 * Searching done if the page index is out of range.
-			 * If the current offset is not reaches the end of
-			 * the specified search range, there should be a hole
-			 * between them.
+			 * If current page offset is beyond where we've ended,
+			 * we've found a hole.
 			 */
-			if (page->index > end) {
-				if (type == HOLE_OFF && lastoff < endoff) {
-					*offset = lastoff;
-					found = true;
-				}
+			if (type == HOLE_OFF && lastoff < endoff &&
+			    lastoff < page_offset(pvec.pages[i])) {
+				found = true;
+				*offset = lastoff;
 				goto out;
 			}
+			/* Searching done if the page index is out of range. */
+			if (page->index > end)
+				goto out;
 
 			lock_page(page);
 			/*
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/xfs/xfs_fsops.c linux-libre-4.4.107-gnu/fs/xfs/xfs_fsops.c
--- linux-libre-4.4-gnu/fs/xfs/xfs_fsops.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/xfs/xfs_fsops.c	2017-12-20 04:05:01.000000000 -0500
@@ -243,8 +243,8 @@ xfs_growfs_data_private(
 		agf->agf_roots[XFS_BTNUM_CNTi] = cpu_to_be32(XFS_CNT_BLOCK(mp));
 		agf->agf_levels[XFS_BTNUM_BNOi] = cpu_to_be32(1);
 		agf->agf_levels[XFS_BTNUM_CNTi] = cpu_to_be32(1);
-		agf->agf_flfirst = 0;
-		agf->agf_fllast = cpu_to_be32(XFS_AGFL_SIZE(mp) - 1);
+		agf->agf_flfirst = cpu_to_be32(1);
+		agf->agf_fllast = 0;
 		agf->agf_flcount = 0;
 		tmpsize = agsize - XFS_PREALLOC_BLOCKS(mp);
 		agf->agf_freeblks = cpu_to_be32(tmpsize);
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/xfs/xfs_icache.c linux-libre-4.4.107-gnu/fs/xfs/xfs_icache.c
--- linux-libre-4.4-gnu/fs/xfs/xfs_icache.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/xfs/xfs_icache.c	2017-12-20 04:05:01.000000000 -0500
@@ -210,14 +210,17 @@ xfs_iget_cache_hit(
 
 		error = inode_init_always(mp->m_super, inode);
 		if (error) {
+			bool wake;
 			/*
 			 * Re-initializing the inode failed, and we are in deep
 			 * trouble.  Try to re-add it to the reclaim list.
 			 */
 			rcu_read_lock();
 			spin_lock(&ip->i_flags_lock);
-
+			wake = !!__xfs_iflags_test(ip, XFS_INEW);
 			ip->i_flags &= ~(XFS_INEW | XFS_IRECLAIM);
+			if (wake)
+				wake_up_bit(&ip->i_flags, __XFS_INEW_BIT);
 			ASSERT(ip->i_flags & XFS_IRECLAIMABLE);
 			trace_xfs_iget_reclaim_fail(ip);
 			goto out_error;
@@ -363,6 +366,22 @@ out_destroy:
 	return error;
 }
 
+static void
+xfs_inew_wait(
+	struct xfs_inode	*ip)
+{
+	wait_queue_head_t *wq = bit_waitqueue(&ip->i_flags, __XFS_INEW_BIT);
+	DEFINE_WAIT_BIT(wait, &ip->i_flags, __XFS_INEW_BIT);
+
+	do {
+		prepare_to_wait(wq, &wait.wait, TASK_UNINTERRUPTIBLE);
+		if (!xfs_iflags_test(ip, XFS_INEW))
+			break;
+		schedule();
+	} while (true);
+	finish_wait(wq, &wait.wait);
+}
+
 /*
  * Look up an inode by number in the given file system.
  * The inode is looked up in the cache held in each AG.
@@ -467,9 +486,11 @@ out_error_or_again:
 
 STATIC int
 xfs_inode_ag_walk_grab(
-	struct xfs_inode	*ip)
+	struct xfs_inode	*ip,
+	int			flags)
 {
 	struct inode		*inode = VFS_I(ip);
+	bool			newinos = !!(flags & XFS_AGITER_INEW_WAIT);
 
 	ASSERT(rcu_read_lock_held());
 
@@ -487,7 +508,8 @@ xfs_inode_ag_walk_grab(
 		goto out_unlock_noent;
 
 	/* avoid new or reclaimable inodes. Leave for reclaim code to flush */
-	if (__xfs_iflags_test(ip, XFS_INEW | XFS_IRECLAIMABLE | XFS_IRECLAIM))
+	if ((!newinos && __xfs_iflags_test(ip, XFS_INEW)) ||
+	    __xfs_iflags_test(ip, XFS_IRECLAIMABLE | XFS_IRECLAIM))
 		goto out_unlock_noent;
 	spin_unlock(&ip->i_flags_lock);
 
@@ -515,7 +537,8 @@ xfs_inode_ag_walk(
 					   void *args),
 	int			flags,
 	void			*args,
-	int			tag)
+	int			tag,
+	int			iter_flags)
 {
 	uint32_t		first_index;
 	int			last_error = 0;
@@ -557,7 +580,7 @@ restart:
 		for (i = 0; i < nr_found; i++) {
 			struct xfs_inode *ip = batch[i];
 
-			if (done || xfs_inode_ag_walk_grab(ip))
+			if (done || xfs_inode_ag_walk_grab(ip, iter_flags))
 				batch[i] = NULL;
 
 			/*
@@ -585,6 +608,9 @@ restart:
 		for (i = 0; i < nr_found; i++) {
 			if (!batch[i])
 				continue;
+			if ((iter_flags & XFS_AGITER_INEW_WAIT) &&
+			    xfs_iflags_test(batch[i], XFS_INEW))
+				xfs_inew_wait(batch[i]);
 			error = execute(batch[i], flags, args);
 			IRELE(batch[i]);
 			if (error == -EAGAIN) {
@@ -637,12 +663,13 @@ xfs_eofblocks_worker(
 }
 
 int
-xfs_inode_ag_iterator(
+xfs_inode_ag_iterator_flags(
 	struct xfs_mount	*mp,
 	int			(*execute)(struct xfs_inode *ip, int flags,
 					   void *args),
 	int			flags,
-	void			*args)
+	void			*args,
+	int			iter_flags)
 {
 	struct xfs_perag	*pag;
 	int			error = 0;
@@ -652,7 +679,8 @@ xfs_inode_ag_iterator(
 	ag = 0;
 	while ((pag = xfs_perag_get(mp, ag))) {
 		ag = pag->pag_agno + 1;
-		error = xfs_inode_ag_walk(mp, pag, execute, flags, args, -1);
+		error = xfs_inode_ag_walk(mp, pag, execute, flags, args, -1,
+					  iter_flags);
 		xfs_perag_put(pag);
 		if (error) {
 			last_error = error;
@@ -664,6 +692,17 @@ xfs_inode_ag_iterator(
 }
 
 int
+xfs_inode_ag_iterator(
+	struct xfs_mount	*mp,
+	int			(*execute)(struct xfs_inode *ip, int flags,
+					   void *args),
+	int			flags,
+	void			*args)
+{
+	return xfs_inode_ag_iterator_flags(mp, execute, flags, args, 0);
+}
+
+int
 xfs_inode_ag_iterator_tag(
 	struct xfs_mount	*mp,
 	int			(*execute)(struct xfs_inode *ip, int flags,
@@ -680,7 +719,8 @@ xfs_inode_ag_iterator_tag(
 	ag = 0;
 	while ((pag = xfs_perag_get_tag(mp, ag, tag))) {
 		ag = pag->pag_agno + 1;
-		error = xfs_inode_ag_walk(mp, pag, execute, flags, args, tag);
+		error = xfs_inode_ag_walk(mp, pag, execute, flags, args, tag,
+					  0);
 		xfs_perag_put(pag);
 		if (error) {
 			last_error = error;
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/xfs/xfs_icache.h linux-libre-4.4.107-gnu/fs/xfs/xfs_icache.h
--- linux-libre-4.4-gnu/fs/xfs/xfs_icache.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/xfs/xfs_icache.h	2017-12-20 04:05:01.000000000 -0500
@@ -48,6 +48,11 @@ struct xfs_eofblocks {
 #define XFS_IGET_UNTRUSTED	0x2
 #define XFS_IGET_DONTCACHE	0x4
 
+/*
+ * flags for AG inode iterator
+ */
+#define XFS_AGITER_INEW_WAIT	0x1	/* wait on new inodes */
+
 int xfs_iget(struct xfs_mount *mp, struct xfs_trans *tp, xfs_ino_t ino,
 	     uint flags, uint lock_flags, xfs_inode_t **ipp);
 
@@ -72,6 +77,9 @@ void xfs_eofblocks_worker(struct work_st
 int xfs_inode_ag_iterator(struct xfs_mount *mp,
 	int (*execute)(struct xfs_inode *ip, int flags, void *args),
 	int flags, void *args);
+int xfs_inode_ag_iterator_flags(struct xfs_mount *mp,
+	int (*execute)(struct xfs_inode *ip, int flags, void *args),
+	int flags, void *args, int iter_flags);
 int xfs_inode_ag_iterator_tag(struct xfs_mount *mp,
 	int (*execute)(struct xfs_inode *ip, int flags, void *args),
 	int flags, void *args, int tag);
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/xfs/xfs_inode.c linux-libre-4.4.107-gnu/fs/xfs/xfs_inode.c
--- linux-libre-4.4-gnu/fs/xfs/xfs_inode.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/xfs/xfs_inode.c	2017-12-20 04:05:01.000000000 -0500
@@ -3220,13 +3220,14 @@ xfs_iflush_cluster(
 		 * We need to check under the i_flags_lock for a valid inode
 		 * here. Skip it if it is not valid or the wrong inode.
 		 */
-		spin_lock(&ip->i_flags_lock);
-		if (!ip->i_ino ||
+		spin_lock(&iq->i_flags_lock);
+		if (!iq->i_ino ||
+		    __xfs_iflags_test(iq, XFS_ISTALE) ||
 		    (XFS_INO_TO_AGINO(mp, iq->i_ino) & mask) != first_index) {
-			spin_unlock(&ip->i_flags_lock);
+			spin_unlock(&iq->i_flags_lock);
 			continue;
 		}
-		spin_unlock(&ip->i_flags_lock);
+		spin_unlock(&iq->i_flags_lock);
 
 		/*
 		 * Do an un-protected check to see if the inode is dirty and
@@ -3342,7 +3343,7 @@ xfs_iflush(
 	struct xfs_buf		**bpp)
 {
 	struct xfs_mount	*mp = ip->i_mount;
-	struct xfs_buf		*bp;
+	struct xfs_buf		*bp = NULL;
 	struct xfs_dinode	*dip;
 	int			error;
 
@@ -3384,14 +3385,22 @@ xfs_iflush(
 	}
 
 	/*
-	 * Get the buffer containing the on-disk inode.
+	 * Get the buffer containing the on-disk inode. We are doing a try-lock
+	 * operation here, so we may get  an EAGAIN error. In that case, we
+	 * simply want to return with the inode still dirty.
+	 *
+	 * If we get any other error, we effectively have a corruption situation
+	 * and we cannot flush the inode, so we treat it the same as failing
+	 * xfs_iflush_int().
 	 */
 	error = xfs_imap_to_bp(mp, NULL, &ip->i_imap, &dip, &bp, XBF_TRYLOCK,
 			       0);
-	if (error || !bp) {
+	if (error == -EAGAIN) {
 		xfs_ifunlock(ip);
 		return error;
 	}
+	if (error)
+		goto corrupt_out;
 
 	/*
 	 * First flush out the inode that xfs_iflush was called with.
@@ -3419,7 +3428,8 @@ xfs_iflush(
 	return 0;
 
 corrupt_out:
-	xfs_buf_relse(bp);
+	if (bp)
+		xfs_buf_relse(bp);
 	xfs_force_shutdown(mp, SHUTDOWN_CORRUPT_INCORE);
 cluster_corrupt_out:
 	error = -EFSCORRUPTED;
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/xfs/xfs_inode.h linux-libre-4.4.107-gnu/fs/xfs/xfs_inode.h
--- linux-libre-4.4-gnu/fs/xfs/xfs_inode.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/xfs/xfs_inode.h	2017-12-20 04:05:01.000000000 -0500
@@ -208,7 +208,8 @@ xfs_get_initial_prid(struct xfs_inode *d
 #define XFS_IRECLAIM		(1 << 0) /* started reclaiming this inode */
 #define XFS_ISTALE		(1 << 1) /* inode has been staled */
 #define XFS_IRECLAIMABLE	(1 << 2) /* inode can be reclaimed */
-#define XFS_INEW		(1 << 3) /* inode has just been allocated */
+#define __XFS_INEW_BIT		3	 /* inode has just been allocated */
+#define XFS_INEW		(1 << __XFS_INEW_BIT)
 #define XFS_ITRUNCATED		(1 << 5) /* truncated down so flush-on-close */
 #define XFS_IDIRTY_RELEASE	(1 << 6) /* dirty release already seen */
 #define __XFS_IFLOCK_BIT	7	 /* inode is being flushed right now */
@@ -453,6 +454,7 @@ static inline void xfs_finish_inode_setu
 	xfs_iflags_clear(ip, XFS_INEW);
 	barrier();
 	unlock_new_inode(VFS_I(ip));
+	wake_up_bit(&ip->i_flags, __XFS_INEW_BIT);
 }
 
 static inline void xfs_setup_existing_inode(struct xfs_inode *ip)
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/xfs/xfs_ioctl.c linux-libre-4.4.107-gnu/fs/xfs/xfs_ioctl.c
--- linux-libre-4.4-gnu/fs/xfs/xfs_ioctl.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/xfs/xfs_ioctl.c	2017-12-20 04:05:01.000000000 -0500
@@ -403,6 +403,7 @@ xfs_attrlist_by_handle(
 {
 	int			error = -ENOMEM;
 	attrlist_cursor_kern_t	*cursor;
+	struct xfs_fsop_attrlist_handlereq __user	*p = arg;
 	xfs_fsop_attrlist_handlereq_t al_hreq;
 	struct dentry		*dentry;
 	char			*kbuf;
@@ -435,6 +436,11 @@ xfs_attrlist_by_handle(
 	if (error)
 		goto out_kfree;
 
+	if (copy_to_user(&p->pos, cursor, sizeof(attrlist_cursor_kern_t))) {
+		error = -EFAULT;
+		goto out_kfree;
+	}
+
 	if (copy_to_user(al_hreq.buffer, kbuf, al_hreq.buflen))
 		error = -EFAULT;
 
@@ -1379,10 +1385,11 @@ xfs_ioc_getbmap(
 	unsigned int		cmd,
 	void			__user *arg)
 {
-	struct getbmapx		bmx;
+	struct getbmapx		bmx = { 0 };
 	int			error;
 
-	if (copy_from_user(&bmx, arg, sizeof(struct getbmapx)))
+	/* struct getbmap is a strict subset of struct getbmapx. */
+	if (copy_from_user(&bmx, arg, offsetof(struct getbmapx, bmv_iflags)))
 		return -EFAULT;
 
 	if (bmx.bmv_count < 2)
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/xfs/xfs_itable.c linux-libre-4.4.107-gnu/fs/xfs/xfs_itable.c
--- linux-libre-4.4-gnu/fs/xfs/xfs_itable.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/xfs/xfs_itable.c	2017-12-20 04:05:01.000000000 -0500
@@ -351,7 +351,6 @@ xfs_bulkstat(
 	xfs_agino_t		agino;	/* inode # in allocation group */
 	xfs_agnumber_t		agno;	/* allocation group number */
 	xfs_btree_cur_t		*cur;	/* btree cursor for ialloc btree */
-	size_t			irbsize; /* size of irec buffer in bytes */
 	xfs_inobt_rec_incore_t	*irbuf;	/* start of irec buffer */
 	int			nirbuf;	/* size of irbuf */
 	int			ubcount; /* size of user's buffer */
@@ -378,11 +377,10 @@ xfs_bulkstat(
 	*ubcountp = 0;
 	*done = 0;
 
-	irbuf = kmem_zalloc_greedy(&irbsize, PAGE_SIZE, PAGE_SIZE * 4);
+	irbuf = kmem_zalloc_large(PAGE_SIZE * 4, KM_SLEEP);
 	if (!irbuf)
 		return -ENOMEM;
-
-	nirbuf = irbsize / sizeof(*irbuf);
+	nirbuf = (PAGE_SIZE * 4) / sizeof(*irbuf);
 
 	/*
 	 * Loop over the allocation groups, starting from the last
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/xfs/xfs_linux.h linux-libre-4.4.107-gnu/fs/xfs/xfs_linux.h
--- linux-libre-4.4-gnu/fs/xfs/xfs_linux.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/xfs/xfs_linux.h	2017-12-20 04:05:01.000000000 -0500
@@ -369,7 +369,14 @@ static inline __uint64_t howmany_64(__ui
 #endif /* DEBUG */
 
 #ifdef CONFIG_XFS_RT
-#define XFS_IS_REALTIME_INODE(ip) ((ip)->i_d.di_flags & XFS_DIFLAG_REALTIME)
+
+/*
+ * make sure we ignore the inode flag if the filesystem doesn't have a
+ * configured realtime device.
+ */
+#define XFS_IS_REALTIME_INODE(ip)			\
+	(((ip)->i_d.di_flags & XFS_DIFLAG_REALTIME) &&	\
+	 (ip)->i_mount->m_rtdev_targp)
 #else
 #define XFS_IS_REALTIME_INODE(ip) (0)
 #endif
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/xfs/xfs_log_recover.c linux-libre-4.4.107-gnu/fs/xfs/xfs_log_recover.c
--- linux-libre-4.4-gnu/fs/xfs/xfs_log_recover.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/xfs/xfs_log_recover.c	2017-12-20 04:05:01.000000000 -0500
@@ -738,7 +738,7 @@ xlog_find_head(
 	 * in the in-core log.  The following number can be made tighter if
 	 * we actually look at the block size of the filesystem.
 	 */
-	num_scan_bblks = XLOG_TOTAL_REC_SHIFT(log);
+	num_scan_bblks = min_t(int, log_bbnum, XLOG_TOTAL_REC_SHIFT(log));
 	if (head_blk >= num_scan_bblks) {
 		/*
 		 * We are guaranteed that the entire check can be performed
@@ -3204,6 +3204,7 @@ xlog_recover_dquot_ra_pass2(
 	struct xfs_disk_dquot	*recddq;
 	struct xfs_dq_logformat	*dq_f;
 	uint			type;
+	int			len;
 
 
 	if (mp->m_qflags == 0)
@@ -3224,8 +3225,12 @@ xlog_recover_dquot_ra_pass2(
 	ASSERT(dq_f);
 	ASSERT(dq_f->qlf_len == 1);
 
-	xfs_buf_readahead(mp->m_ddev_targp, dq_f->qlf_blkno,
-			  XFS_FSB_TO_BB(mp, dq_f->qlf_len), NULL);
+	len = XFS_FSB_TO_BB(mp, dq_f->qlf_len);
+	if (xlog_peek_buffer_cancelled(log, dq_f->qlf_blkno, len, 0))
+		return;
+
+	xfs_buf_readahead(mp->m_ddev_targp, dq_f->qlf_blkno, len,
+			  &xfs_dquot_buf_ra_ops);
 }
 
 STATIC void
@@ -3975,6 +3980,7 @@ xlog_recover_clear_agi_bucket(
 	agi->agi_unlinked[bucket] = cpu_to_be32(NULLAGINO);
 	offset = offsetof(xfs_agi_t, agi_unlinked) +
 		 (sizeof(xfs_agino_t) * bucket);
+	xfs_trans_buf_set_type(tp, agibp, XFS_BLFT_AGI_BUF);
 	xfs_trans_log_buf(tp, agibp, offset,
 			  (offset + sizeof(xfs_agino_t) - 1));
 
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/xfs/xfs_qm.c linux-libre-4.4.107-gnu/fs/xfs/xfs_qm.c
--- linux-libre-4.4-gnu/fs/xfs/xfs_qm.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/xfs/xfs_qm.c	2017-12-20 04:05:01.000000000 -0500
@@ -1355,12 +1355,7 @@ xfs_qm_quotacheck(
 	mp->m_qflags |= flags;
 
  error_return:
-	while (!list_empty(&buffer_list)) {
-		struct xfs_buf *bp =
-			list_first_entry(&buffer_list, struct xfs_buf, b_list);
-		list_del_init(&bp->b_list);
-		xfs_buf_relse(bp);
-	}
+	xfs_buf_delwri_cancel(&buffer_list);
 
 	if (error) {
 		xfs_warn(mp,
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/xfs/xfs_qm_syscalls.c linux-libre-4.4.107-gnu/fs/xfs/xfs_qm_syscalls.c
--- linux-libre-4.4-gnu/fs/xfs/xfs_qm_syscalls.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/xfs/xfs_qm_syscalls.c	2017-12-20 04:05:01.000000000 -0500
@@ -764,5 +764,6 @@ xfs_qm_dqrele_all_inodes(
 	uint		 flags)
 {
 	ASSERT(mp->m_quotainfo);
-	xfs_inode_ag_iterator(mp, xfs_dqrele_inode, flags, NULL);
+	xfs_inode_ag_iterator_flags(mp, xfs_dqrele_inode, flags, NULL,
+				    XFS_AGITER_INEW_WAIT);
 }
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/xfs/xfs_super.c linux-libre-4.4.107-gnu/fs/xfs/xfs_super.c
--- linux-libre-4.4-gnu/fs/xfs/xfs_super.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/xfs/xfs_super.c	2017-12-20 04:05:01.000000000 -0500
@@ -1233,6 +1233,16 @@ xfs_fs_remount(
 			return -EINVAL;
 		}
 
+		if (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_5 &&
+		    xfs_sb_has_ro_compat_feature(sbp,
+					XFS_SB_FEAT_RO_COMPAT_UNKNOWN)) {
+			xfs_warn(mp,
+"ro->rw transition prohibited on unknown (0x%x) ro-compat filesystem",
+				(sbp->sb_features_ro_compat &
+					XFS_SB_FEAT_RO_COMPAT_UNKNOWN));
+			return -EINVAL;
+		}
+
 		mp->m_flags &= ~XFS_MOUNT_RDONLY;
 
 		/*
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/xfs/xfs_trans_ail.c linux-libre-4.4.107-gnu/fs/xfs/xfs_trans_ail.c
--- linux-libre-4.4-gnu/fs/xfs/xfs_trans_ail.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/xfs/xfs_trans_ail.c	2017-12-20 04:05:01.000000000 -0500
@@ -497,7 +497,6 @@ xfsaild(
 	long		tout = 0;	/* milliseconds */
 
 	current->flags |= PF_MEMALLOC;
-	set_freezable();
 
 	while (!kthread_should_stop()) {
 		if (tout && tout <= 20)
diff -druNp --no-dereference linux-libre-4.4-gnu/fs/xfs/xfs_xattr.c linux-libre-4.4.107-gnu/fs/xfs/xfs_xattr.c
--- linux-libre-4.4-gnu/fs/xfs/xfs_xattr.c	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/fs/xfs/xfs_xattr.c	2017-12-20 04:05:01.000000000 -0500
@@ -180,7 +180,8 @@ xfs_xattr_put_listent(
 	arraytop = context->count + prefix_len + namelen + 1;
 	if (arraytop > context->firstu) {
 		context->count = -1;	/* insufficient space */
-		return 1;
+		context->seen_enough = 1;
+		return 0;
 	}
 	offset = (char *)context->alist + context->count;
 	strncpy(offset, xfs_xattr_prefix(flags), prefix_len);
@@ -222,12 +223,15 @@ list_one_attr(const char *name, const si
 }
 
 ssize_t
-xfs_vn_listxattr(struct dentry *dentry, char *data, size_t size)
+xfs_vn_listxattr(
+	struct dentry	*dentry,
+	char		*data,
+	size_t		size)
 {
 	struct xfs_attr_list_context context;
 	struct attrlist_cursor_kern cursor = { 0 };
-	struct inode		*inode = d_inode(dentry);
-	int			error;
+	struct inode	*inode = d_inode(dentry);
+	int		error;
 
 	/*
 	 * First read the regular on-disk attributes.
@@ -245,7 +249,9 @@ xfs_vn_listxattr(struct dentry *dentry,
 	else
 		context.put_listent = xfs_xattr_put_listent_sizes;
 
-	xfs_attr_list_int(&context);
+	error = xfs_attr_list_int(&context);
+	if (error)
+		return error;
 	if (context.count < 0)
 		return -ERANGE;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/include/asm-generic/bitops/lock.h linux-libre-4.4.107-gnu/include/asm-generic/bitops/lock.h
--- linux-libre-4.4-gnu/include/asm-generic/bitops/lock.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/include/asm-generic/bitops/lock.h	2017-12-20 04:05:01.000000000 -0500
@@ -29,16 +29,16 @@ do {					\
  * @nr: the bit to set
  * @addr: the address to start counting from
  *
- * This operation is like clear_bit_unlock, however it is not atomic.
- * It does provide release barrier semantics so it can be used to unlock
- * a bit lock, however it would only be used if no other CPU can modify
- * any bits in the memory until the lock is released (a good example is
- * if the bit lock itself protects access to the other bits in the word).
+ * A weaker form of clear_bit_unlock() as used by __bit_lock_unlock(). If all
+ * the bits in the word are protected by this lock some archs can use weaker
+ * ops to safely unlock.
+ *
+ * See for example x86's implementation.
  */
 #define __clear_bit_unlock(nr, addr)	\
 do {					\
-	smp_mb();			\
-	__clear_bit(nr, addr);		\
+	smp_mb__before_atomic();	\
+	clear_bit(nr, addr);		\
 } while (0)
 
 #endif /* _ASM_GENERIC_BITOPS_LOCK_H_ */
diff -druNp --no-dereference linux-libre-4.4-gnu/include/asm-generic/cputime_nsecs.h linux-libre-4.4.107-gnu/include/asm-generic/cputime_nsecs.h
--- linux-libre-4.4-gnu/include/asm-generic/cputime_nsecs.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/include/asm-generic/cputime_nsecs.h	2017-12-20 04:05:01.000000000 -0500
@@ -75,7 +75,7 @@ typedef u64 __nocast cputime64_t;
  */
 static inline cputime_t timespec_to_cputime(const struct timespec *val)
 {
-	u64 ret = val->tv_sec * NSEC_PER_SEC + val->tv_nsec;
+	u64 ret = (u64)val->tv_sec * NSEC_PER_SEC + val->tv_nsec;
 	return (__force cputime_t) ret;
 }
 static inline void cputime_to_timespec(const cputime_t ct, struct timespec *val)
@@ -91,7 +91,8 @@ static inline void cputime_to_timespec(c
  */
 static inline cputime_t timeval_to_cputime(const struct timeval *val)
 {
-	u64 ret = val->tv_sec * NSEC_PER_SEC + val->tv_usec * NSEC_PER_USEC;
+	u64 ret = (u64)val->tv_sec * NSEC_PER_SEC +
+			val->tv_usec * NSEC_PER_USEC;
 	return (__force cputime_t) ret;
 }
 static inline void cputime_to_timeval(const cputime_t ct, struct timeval *val)
diff -druNp --no-dereference linux-libre-4.4-gnu/include/asm-generic/futex.h linux-libre-4.4.107-gnu/include/asm-generic/futex.h
--- linux-libre-4.4-gnu/include/asm-generic/futex.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/include/asm-generic/futex.h	2017-12-20 04:05:01.000000000 -0500
@@ -108,11 +108,15 @@ futex_atomic_cmpxchg_inatomic(u32 *uval,
 	u32 val;
 
 	preempt_disable();
-	if (unlikely(get_user(val, uaddr) != 0))
+	if (unlikely(get_user(val, uaddr) != 0)) {
+		preempt_enable();
 		return -EFAULT;
+	}
 
-	if (val == oldval && unlikely(put_user(newval, uaddr) != 0))
+	if (val == oldval && unlikely(put_user(newval, uaddr) != 0)) {
+		preempt_enable();
 		return -EFAULT;
+	}
 
 	*uval = val;
 	preempt_enable();
diff -druNp --no-dereference linux-libre-4.4-gnu/include/asm-generic/memory_model.h linux-libre-4.4.107-gnu/include/asm-generic/memory_model.h
--- linux-libre-4.4-gnu/include/asm-generic/memory_model.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/include/asm-generic/memory_model.h	2017-12-20 04:05:01.000000000 -0500
@@ -1,6 +1,8 @@
 #ifndef __ASM_MEMORY_MODEL_H
 #define __ASM_MEMORY_MODEL_H
 
+#include <linux/pfn.h>
+
 #ifndef __ASSEMBLY__
 
 #if defined(CONFIG_FLATMEM)
@@ -72,7 +74,7 @@
 /*
  * Convert a physical address to a Page Frame Number and back
  */
-#define	__phys_to_pfn(paddr)	((unsigned long)((paddr) >> PAGE_SHIFT))
+#define	__phys_to_pfn(paddr)	PHYS_PFN(paddr)
 #define	__pfn_to_phys(pfn)	PFN_PHYS(pfn)
 
 #define page_to_pfn __page_to_pfn
diff -druNp --no-dereference linux-libre-4.4-gnu/include/asm-generic/percpu.h linux-libre-4.4.107-gnu/include/asm-generic/percpu.h
--- linux-libre-4.4-gnu/include/asm-generic/percpu.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/include/asm-generic/percpu.h	2017-12-20 04:05:01.000000000 -0500
@@ -105,15 +105,35 @@ do {									\
 	(__ret);							\
 })
 
-#define this_cpu_generic_read(pcp)					\
+#define __this_cpu_generic_read_nopreempt(pcp)				\
 ({									\
 	typeof(pcp) __ret;						\
 	preempt_disable();						\
-	__ret = *this_cpu_ptr(&(pcp));					\
+	__ret = READ_ONCE(*raw_cpu_ptr(&(pcp)));			\
 	preempt_enable();						\
 	__ret;								\
 })
 
+#define __this_cpu_generic_read_noirq(pcp)				\
+({									\
+	typeof(pcp) __ret;						\
+	unsigned long __flags;						\
+	raw_local_irq_save(__flags);					\
+	__ret = *raw_cpu_ptr(&(pcp));					\
+	raw_local_irq_restore(__flags);					\
+	__ret;								\
+})
+
+#define this_cpu_generic_read(pcp)					\
+({									\
+	typeof(pcp) __ret;						\
+	if (__native_word(pcp))						\
+		__ret = __this_cpu_generic_read_nopreempt(pcp);		\
+	else								\
+		__ret = __this_cpu_generic_read_noirq(pcp);		\
+	__ret;								\
+})
+
 #define this_cpu_generic_to_op(pcp, val, op)				\
 do {									\
 	unsigned long __flags;						\
diff -druNp --no-dereference linux-libre-4.4-gnu/include/asm-generic/qspinlock.h linux-libre-4.4.107-gnu/include/asm-generic/qspinlock.h
--- linux-libre-4.4-gnu/include/asm-generic/qspinlock.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/include/asm-generic/qspinlock.h	2017-12-20 04:05:01.000000000 -0500
@@ -21,14 +21,33 @@
 #include <asm-generic/qspinlock_types.h>
 
 /**
+ * queued_spin_unlock_wait - wait until the _current_ lock holder releases the lock
+ * @lock : Pointer to queued spinlock structure
+ *
+ * There is a very slight possibility of live-lock if the lockers keep coming
+ * and the waiter is just unfortunate enough to not see any unlock state.
+ */
+#ifndef queued_spin_unlock_wait
+extern void queued_spin_unlock_wait(struct qspinlock *lock);
+#endif
+
+/**
  * queued_spin_is_locked - is the spinlock locked?
  * @lock: Pointer to queued spinlock structure
  * Return: 1 if it is locked, 0 otherwise
  */
+#ifndef queued_spin_is_locked
 static __always_inline int queued_spin_is_locked(struct qspinlock *lock)
 {
+	/*
+	 * See queued_spin_unlock_wait().
+	 *
+	 * Any !0 state indicates it is locked, even if _Q_LOCKED_VAL
+	 * isn't immediately observable.
+	 */
 	return atomic_read(&lock->val);
 }
+#endif
 
 /**
  * queued_spin_value_unlocked - is the spinlock structure unlocked?
@@ -98,19 +117,6 @@ static __always_inline void queued_spin_
 }
 #endif
 
-/**
- * queued_spin_unlock_wait - wait until current lock holder releases the lock
- * @lock : Pointer to queued spinlock structure
- *
- * There is a very slight possibility of live-lock if the lockers keep coming
- * and the waiter is just unfortunate enough to not see any unlock state.
- */
-static inline void queued_spin_unlock_wait(struct qspinlock *lock)
-{
-	while (atomic_read(&lock->val) & _Q_LOCKED_MASK)
-		cpu_relax();
-}
-
 #ifndef virt_spin_lock
 static __always_inline bool virt_spin_lock(struct qspinlock *lock)
 {
diff -druNp --no-dereference linux-libre-4.4-gnu/include/asm-generic/siginfo.h linux-libre-4.4.107-gnu/include/asm-generic/siginfo.h
--- linux-libre-4.4-gnu/include/asm-generic/siginfo.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/include/asm-generic/siginfo.h	2017-12-20 04:05:01.000000000 -0500
@@ -17,21 +17,6 @@
 struct siginfo;
 void do_schedule_next_timer(struct siginfo *info);
 
-#ifndef HAVE_ARCH_COPY_SIGINFO
-
-#include <linux/string.h>
-
-static inline void copy_siginfo(struct siginfo *to, struct siginfo *from)
-{
-	if (from->si_code < 0)
-		memcpy(to, from, sizeof(*to));
-	else
-		/* _sigchld is currently the largest know union member */
-		memcpy(to, from, __ARCH_SI_PREAMBLE_SIZE + sizeof(from->_sifields._sigchld));
-}
-
-#endif
-
 extern int copy_siginfo_to_user(struct siginfo __user *to, const struct siginfo *from);
 
 #endif
diff -druNp --no-dereference linux-libre-4.4-gnu/include/asm-generic/topology.h linux-libre-4.4.107-gnu/include/asm-generic/topology.h
--- linux-libre-4.4-gnu/include/asm-generic/topology.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/include/asm-generic/topology.h	2017-12-20 04:05:01.000000000 -0500
@@ -48,7 +48,11 @@
 #define parent_node(node)	((void)(node),0)
 #endif
 #ifndef cpumask_of_node
-#define cpumask_of_node(node)	((void)node, cpu_online_mask)
+  #ifdef CONFIG_NEED_MULTIPLE_NODES
+    #define cpumask_of_node(node)	((node) == 0 ? cpu_online_mask : cpu_none_mask)
+  #else
+    #define cpumask_of_node(node)	((void)node, cpu_online_mask)
+  #endif
 #endif
 #ifndef pcibus_to_node
 #define pcibus_to_node(bus)	((void)(bus), -1)
diff -druNp --no-dereference linux-libre-4.4-gnu/include/asm-generic/uaccess.h linux-libre-4.4.107-gnu/include/asm-generic/uaccess.h
--- linux-libre-4.4-gnu/include/asm-generic/uaccess.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/include/asm-generic/uaccess.h	2017-12-20 04:05:01.000000000 -0500
@@ -230,14 +230,18 @@ extern int __put_user_bad(void) __attrib
 	might_fault();						\
 	access_ok(VERIFY_READ, __p, sizeof(*ptr)) ?		\
 		__get_user((x), (__typeof__(*(ptr)) *)__p) :	\
-		-EFAULT;					\
+		((x) = (__typeof__(*(ptr)))0,-EFAULT);		\
 })
 
 #ifndef __get_user_fn
 static inline int __get_user_fn(size_t size, const void __user *ptr, void *x)
 {
-	size = __copy_from_user(x, ptr, size);
-	return size ? -EFAULT : size;
+	size_t n = __copy_from_user(x, ptr, size);
+	if (unlikely(n)) {
+		memset(x + (size - n), 0, n);
+		return -EFAULT;
+	}
+	return 0;
 }
 
 #define __get_user_fn(sz, u, k)	__get_user_fn(sz, u, k)
@@ -257,11 +261,13 @@ extern int __get_user_bad(void) __attrib
 static inline long copy_from_user(void *to,
 		const void __user * from, unsigned long n)
 {
+	unsigned long res = n;
 	might_fault();
-	if (access_ok(VERIFY_READ, from, n))
-		return __copy_from_user(to, from, n);
-	else
-		return n;
+	if (likely(access_ok(VERIFY_READ, from, n)))
+		res = __copy_from_user(to, from, n);
+	if (unlikely(res))
+		memset(to + (n - res), 0, res);
+	return res;
 }
 
 static inline long copy_to_user(void __user *to,
diff -druNp --no-dereference linux-libre-4.4-gnu/include/asm-generic/vmlinux.lds.h linux-libre-4.4.107-gnu/include/asm-generic/vmlinux.lds.h
--- linux-libre-4.4-gnu/include/asm-generic/vmlinux.lds.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/include/asm-generic/vmlinux.lds.h	2017-12-20 04:05:01.000000000 -0500
@@ -531,15 +531,19 @@
 
 #define INIT_TEXT							\
 	*(.init.text)							\
+	*(.text.startup)						\
 	MEM_DISCARD(init.text)
 
 #define EXIT_DATA							\
 	*(.exit.data)							\
+	*(.fini_array)							\
+	*(.dtors)							\
 	MEM_DISCARD(exit.data)						\
 	MEM_DISCARD(exit.rodata)
 
 #define EXIT_TEXT							\
 	*(.exit.text)							\
+	*(.text.exit)							\
 	MEM_DISCARD(exit.text)
 
 #define EXIT_CALL							\
diff -druNp --no-dereference linux-libre-4.4-gnu/include/crypto/ghash.h linux-libre-4.4.107-gnu/include/crypto/ghash.h
--- linux-libre-4.4-gnu/include/crypto/ghash.h	1969-12-31 19:00:00.000000000 -0500
+++ linux-libre-4.4.107-gnu/include/crypto/ghash.h	2017-12-20 04:05:01.000000000 -0500
@@ -0,0 +1,23 @@
+/*
+ * Common values for GHASH algorithms
+ */
+
+#ifndef __CRYPTO_GHASH_H__
+#define __CRYPTO_GHASH_H__
+
+#include <linux/types.h>
+#include <crypto/gf128mul.h>
+
+#define GHASH_BLOCK_SIZE	16
+#define GHASH_DIGEST_SIZE	16
+
+struct ghash_ctx {
+	struct gf128mul_4k *gf128;
+};
+
+struct ghash_desc_ctx {
+	u8 buffer[GHASH_BLOCK_SIZE];
+	u32 bytes;
+};
+
+#endif
diff -druNp --no-dereference linux-libre-4.4-gnu/include/crypto/hash.h linux-libre-4.4.107-gnu/include/crypto/hash.h
--- linux-libre-4.4-gnu/include/crypto/hash.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/include/crypto/hash.h	2017-12-20 04:05:01.000000000 -0500
@@ -204,6 +204,7 @@ struct crypto_ahash {
 		      unsigned int keylen);
 
 	unsigned int reqsize;
+	bool has_setkey;
 	struct crypto_tfm base;
 };
 
@@ -375,6 +376,11 @@ static inline void *ahash_request_ctx(st
 int crypto_ahash_setkey(struct crypto_ahash *tfm, const u8 *key,
 			unsigned int keylen);
 
+static inline bool crypto_ahash_has_setkey(struct crypto_ahash *tfm)
+{
+	return tfm->has_setkey;
+}
+
 /**
  * crypto_ahash_finup() - update and finalize message digest
  * @req: reference to the ahash_request handle that holds all information
diff -druNp --no-dereference linux-libre-4.4-gnu/include/crypto/if_alg.h linux-libre-4.4.107-gnu/include/crypto/if_alg.h
--- linux-libre-4.4-gnu/include/crypto/if_alg.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/include/crypto/if_alg.h	2017-12-20 04:05:01.000000000 -0500
@@ -30,6 +30,9 @@ struct alg_sock {
 
 	struct sock *parent;
 
+	unsigned int refcnt;
+	unsigned int nokey_refcnt;
+
 	const struct af_alg_type *type;
 	void *private;
 };
@@ -50,9 +53,11 @@ struct af_alg_type {
 	void (*release)(void *private);
 	int (*setkey)(void *private, const u8 *key, unsigned int keylen);
 	int (*accept)(void *private, struct sock *sk);
+	int (*accept_nokey)(void *private, struct sock *sk);
 	int (*setauthsize)(void *private, unsigned int authsize);
 
 	struct proto_ops *ops;
+	struct proto_ops *ops_nokey;
 	struct module *owner;
 	char name[14];
 };
@@ -67,6 +72,7 @@ int af_alg_register_type(const struct af
 int af_alg_unregister_type(const struct af_alg_type *type);
 
 int af_alg_release(struct socket *sock);
+void af_alg_release_parent(struct sock *sk);
 int af_alg_accept(struct sock *sk, struct socket *newsock);
 
 int af_alg_make_sg(struct af_alg_sgl *sgl, struct iov_iter *iter, int len);
@@ -83,11 +89,6 @@ static inline struct alg_sock *alg_sk(st
 	return (struct alg_sock *)sk;
 }
 
-static inline void af_alg_release_parent(struct sock *sk)
-{
-	sock_put(alg_sk(sk)->parent);
-}
-
 static inline void af_alg_init_completion(struct af_alg_completion *completion)
 {
 	init_completion(&completion->completion);
diff -druNp --no-dereference linux-libre-4.4-gnu/include/crypto/internal/hash.h linux-libre-4.4.107-gnu/include/crypto/internal/hash.h
--- linux-libre-4.4-gnu/include/crypto/internal/hash.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/include/crypto/internal/hash.h	2017-12-20 04:05:01.000000000 -0500
@@ -83,6 +83,14 @@ int ahash_register_instance(struct crypt
 			    struct ahash_instance *inst);
 void ahash_free_instance(struct crypto_instance *inst);
 
+int shash_no_setkey(struct crypto_shash *tfm, const u8 *key,
+		    unsigned int keylen);
+
+static inline bool crypto_shash_alg_has_setkey(struct shash_alg *alg)
+{
+	return alg->setkey != shash_no_setkey;
+}
+
 int crypto_init_ahash_spawn(struct crypto_ahash_spawn *spawn,
 			    struct hash_alg_common *alg,
 			    struct crypto_instance *inst);
@@ -173,6 +181,16 @@ static inline struct ahash_instance *aha
 	return crypto_alloc_instance2(name, alg, ahash_instance_headroom());
 }
 
+static inline void ahash_request_complete(struct ahash_request *req, int err)
+{
+	req->base.complete(&req->base, err);
+}
+
+static inline u32 ahash_request_flags(struct ahash_request *req)
+{
+	return req->base.flags;
+}
+
 static inline struct crypto_ahash *crypto_spawn_ahash(
 	struct crypto_ahash_spawn *spawn)
 {
diff -druNp --no-dereference linux-libre-4.4-gnu/include/crypto/skcipher.h linux-libre-4.4.107-gnu/include/crypto/skcipher.h
--- linux-libre-4.4-gnu/include/crypto/skcipher.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/include/crypto/skcipher.h	2017-12-20 04:05:01.000000000 -0500
@@ -61,6 +61,8 @@ struct crypto_skcipher {
 	unsigned int ivsize;
 	unsigned int reqsize;
 
+	bool has_setkey;
+
 	struct crypto_tfm base;
 };
 
@@ -305,6 +307,11 @@ static inline int crypto_skcipher_setkey
 	return tfm->setkey(tfm, key, keylen);
 }
 
+static inline bool crypto_skcipher_has_setkey(struct crypto_skcipher *tfm)
+{
+	return tfm->has_setkey;
+}
+
 /**
  * crypto_skcipher_reqtfm() - obtain cipher handle from request
  * @req: skcipher_request out of which the cipher handle is to be obtained
diff -druNp --no-dereference linux-libre-4.4-gnu/include/drm/drm_cache.h linux-libre-4.4.107-gnu/include/drm/drm_cache.h
--- linux-libre-4.4-gnu/include/drm/drm_cache.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/include/drm/drm_cache.h	2017-12-20 04:05:01.000000000 -0500
@@ -35,4 +35,15 @@
 
 void drm_clflush_pages(struct page *pages[], unsigned long num_pages);
 
+static inline bool drm_arch_can_wc_memory(void)
+{
+#if defined(CONFIG_PPC) && !defined(CONFIG_NOT_COHERENT_CACHE)
+	return false;
+#elif defined(CONFIG_MIPS) && defined(CONFIG_CPU_LOONGSON3)
+	return false;
+#else
+	return true;
+#endif
+}
+
 #endif
diff -druNp --no-dereference linux-libre-4.4-gnu/include/drm/drm_dp_mst_helper.h linux-libre-4.4.107-gnu/include/drm/drm_dp_mst_helper.h
--- linux-libre-4.4-gnu/include/drm/drm_dp_mst_helper.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/include/drm/drm_dp_mst_helper.h	2017-12-20 04:05:01.000000000 -0500
@@ -44,8 +44,6 @@ struct drm_dp_vcpi {
 /**
  * struct drm_dp_mst_port - MST port
  * @kref: reference count for this port.
- * @guid_valid: for DP 1.2 devices if we have validated the GUID.
- * @guid: guid for DP 1.2 device on this port.
  * @port_num: port number
  * @input: if this port is an input port.
  * @mcs: message capability status - DP 1.2 spec.
@@ -70,10 +68,6 @@ struct drm_dp_vcpi {
 struct drm_dp_mst_port {
 	struct kref kref;
 
-	/* if dpcd 1.2 device is on this port - its GUID info */
-	bool guid_valid;
-	u8 guid[16];
-
 	u8 port_num;
 	bool input;
 	bool mcs;
@@ -109,10 +103,12 @@ struct drm_dp_mst_port {
  * @tx_slots: transmission slots for this device.
  * @last_seqno: last sequence number used to talk to this.
  * @link_address_sent: if a link address message has been sent to this device yet.
+ * @guid: guid for DP 1.2 branch device. port under this branch can be
+ * identified by port #.
  *
  * This structure represents an MST branch device, there is one
- * primary branch device at the root, along with any others connected
- * to downstream ports
+ * primary branch device at the root, along with any other branches connected
+ * to downstream port of parent branches.
  */
 struct drm_dp_mst_branch {
 	struct kref kref;
@@ -131,6 +127,9 @@ struct drm_dp_mst_branch {
 	struct drm_dp_sideband_msg_tx *tx_slots[2];
 	int last_seqno;
 	bool link_address_sent;
+
+	/* global unique identifier to identify branch devices */
+	u8 guid[16];
 };
 
 
@@ -405,11 +404,9 @@ struct drm_dp_payload {
  * @conn_base_id: DRM connector ID this mgr is connected to.
  * @down_rep_recv: msg receiver state for down replies.
  * @up_req_recv: msg receiver state for up requests.
- * @lock: protects mst state, primary, guid, dpcd.
+ * @lock: protects mst state, primary, dpcd.
  * @mst_state: if this manager is enabled for an MST capable port.
  * @mst_primary: pointer to the primary branch device.
- * @guid_valid: GUID valid for the primary branch device.
- * @guid: GUID for primary port.
  * @dpcd: cache of DPCD for primary port.
  * @pbn_div: PBN to slots divisor.
  *
@@ -431,13 +428,11 @@ struct drm_dp_mst_topology_mgr {
 	struct drm_dp_sideband_msg_rx up_req_recv;
 
 	/* pointer to info about the initial MST device */
-	struct mutex lock; /* protects mst_state + primary + guid + dpcd */
+	struct mutex lock; /* protects mst_state + primary + dpcd */
 
 	bool mst_state;
 	struct drm_dp_mst_branch *mst_primary;
-	/* primary MST device GUID */
-	bool guid_valid;
-	u8 guid[16];
+
 	u8 dpcd[DP_RECEIVER_CAP_SIZE];
 	u8 sink_count;
 	int pbn_div;
@@ -450,9 +445,7 @@ struct drm_dp_mst_topology_mgr {
 	   the mstb tx_slots and txmsg->state once they are queued */
 	struct mutex qlock;
 	struct list_head tx_msg_downq;
-	struct list_head tx_msg_upq;
 	bool tx_down_in_progress;
-	bool tx_up_in_progress;
 
 	/* payload info + lock for it */
 	struct mutex payload_lock;
diff -druNp --no-dereference linux-libre-4.4-gnu/include/drm/drm_fixed.h linux-libre-4.4.107-gnu/include/drm/drm_fixed.h
--- linux-libre-4.4-gnu/include/drm/drm_fixed.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/include/drm/drm_fixed.h	2017-12-20 04:05:01.000000000 -0500
@@ -73,18 +73,28 @@ static inline u32 dfixed_div(fixed20_12
 #define DRM_FIXED_ONE		(1ULL << DRM_FIXED_POINT)
 #define DRM_FIXED_DECIMAL_MASK	(DRM_FIXED_ONE - 1)
 #define DRM_FIXED_DIGITS_MASK	(~DRM_FIXED_DECIMAL_MASK)
+#define DRM_FIXED_EPSILON	1LL
+#define DRM_FIXED_ALMOST_ONE	(DRM_FIXED_ONE - DRM_FIXED_EPSILON)
 
 static inline s64 drm_int2fixp(int a)
 {
 	return ((s64)a) << DRM_FIXED_POINT;
 }
 
-static inline int drm_fixp2int(int64_t a)
+static inline int drm_fixp2int(s64 a)
 {
 	return ((s64)a) >> DRM_FIXED_POINT;
 }
 
-static inline unsigned drm_fixp_msbset(int64_t a)
+static inline int drm_fixp2int_ceil(s64 a)
+{
+	if (a > 0)
+		return drm_fixp2int(a + DRM_FIXED_ALMOST_ONE);
+	else
+		return drm_fixp2int(a - DRM_FIXED_ALMOST_ONE);
+}
+
+static inline unsigned drm_fixp_msbset(s64 a)
 {
 	unsigned shift, sign = (a >> 63) & 1;
 
@@ -136,6 +146,45 @@ static inline s64 drm_fixp_div(s64 a, s6
 	return result;
 }
 
+static inline s64 drm_fixp_from_fraction(s64 a, s64 b)
+{
+	s64 res;
+	bool a_neg = a < 0;
+	bool b_neg = b < 0;
+	u64 a_abs = a_neg ? -a : a;
+	u64 b_abs = b_neg ? -b : b;
+	u64 rem;
+
+	/* determine integer part */
+	u64 res_abs  = div64_u64_rem(a_abs, b_abs, &rem);
+
+	/* determine fractional part */
+	{
+		u32 i = DRM_FIXED_POINT;
+
+		do {
+			rem <<= 1;
+			res_abs <<= 1;
+			if (rem >= b_abs) {
+				res_abs |= 1;
+				rem -= b_abs;
+			}
+		} while (--i != 0);
+	}
+
+	/* round up LSB */
+	{
+		u64 summand = (rem << 1) >= b_abs;
+
+		res_abs += summand;
+	}
+
+	res = (s64) res_abs;
+	if (a_neg ^ b_neg)
+		res = -res;
+	return res;
+}
+
 static inline s64 drm_fixp_exp(s64 x)
 {
 	s64 tolerance = div64_s64(DRM_FIXED_ONE, 1000000);
diff -druNp --no-dereference linux-libre-4.4-gnu/include/drm/drmP.h linux-libre-4.4.107-gnu/include/drm/drmP.h
--- linux-libre-4.4-gnu/include/drm/drmP.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/include/drm/drmP.h	2017-12-20 04:05:01.000000000 -0500
@@ -158,6 +158,26 @@ void drm_err(const char *format, ...);
 /** \name Macros to make printk easier */
 /*@{*/
 
+#define _DRM_PRINTK(once, level, fmt, ...)				\
+	do {								\
+		printk##once(KERN_##level "[" DRM_NAME "] " fmt,	\
+			     ##__VA_ARGS__);				\
+	} while (0)
+
+#define DRM_INFO(fmt, ...)						\
+	_DRM_PRINTK(, INFO, fmt, ##__VA_ARGS__)
+#define DRM_NOTE(fmt, ...)						\
+	_DRM_PRINTK(, NOTICE, fmt, ##__VA_ARGS__)
+#define DRM_WARN(fmt, ...)						\
+	_DRM_PRINTK(, WARNING, fmt, ##__VA_ARGS__)
+
+#define DRM_INFO_ONCE(fmt, ...)						\
+	_DRM_PRINTK(_once, INFO, fmt, ##__VA_ARGS__)
+#define DRM_NOTE_ONCE(fmt, ...)						\
+	_DRM_PRINTK(_once, NOTICE, fmt, ##__VA_ARGS__)
+#define DRM_WARN_ONCE(fmt, ...)						\
+	_DRM_PRINTK(_once, WARNING, fmt, ##__VA_ARGS__)
+
 /**
  * Error output.
  *
@@ -183,12 +203,6 @@ void drm_err(const char *format, ...);
 		drm_err(fmt, ##__VA_ARGS__);				\
 })
 
-#define DRM_INFO(fmt, ...)				\
-	printk(KERN_INFO "[" DRM_NAME "] " fmt, ##__VA_ARGS__)
-
-#define DRM_INFO_ONCE(fmt, ...)				\
-	printk_once(KERN_INFO "[" DRM_NAME "] " fmt, ##__VA_ARGS__)
-
 /**
  * Debug output.
  *
@@ -1029,7 +1043,8 @@ static inline int drm_debugfs_remove_fil
 #endif
 
 extern struct dma_buf *drm_gem_prime_export(struct drm_device *dev,
-		struct drm_gem_object *obj, int flags);
+					    struct drm_gem_object *obj,
+					    int flags);
 extern int drm_gem_prime_handle_to_fd(struct drm_device *dev,
 		struct drm_file *file_priv, uint32_t handle, uint32_t flags,
 		int *prime_fd);
diff -druNp --no-dereference linux-libre-4.4-gnu/include/drm/i915_pciids.h linux-libre-4.4.107-gnu/include/drm/i915_pciids.h
--- linux-libre-4.4-gnu/include/drm/i915_pciids.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/include/drm/i915_pciids.h	2017-12-20 04:05:01.000000000 -0500
@@ -277,7 +277,9 @@
 	INTEL_VGA_DEVICE(0x191D, info)  /* WKS GT2 */
 
 #define INTEL_SKL_GT3_IDS(info) \
+	INTEL_VGA_DEVICE(0x1923, info), /* ULT GT3 */ \
 	INTEL_VGA_DEVICE(0x1926, info), /* ULT GT3 */ \
+	INTEL_VGA_DEVICE(0x1927, info), /* ULT GT3 */ \
 	INTEL_VGA_DEVICE(0x192B, info), /* Halo GT3 */ \
 	INTEL_VGA_DEVICE(0x192A, info) /* SRV GT3 */ \
 
@@ -289,6 +291,8 @@
 #define INTEL_BXT_IDS(info) \
 	INTEL_VGA_DEVICE(0x0A84, info), \
 	INTEL_VGA_DEVICE(0x1A84, info), \
-	INTEL_VGA_DEVICE(0x5A84, info)
+	INTEL_VGA_DEVICE(0x1A85, info), \
+	INTEL_VGA_DEVICE(0x5A84, info), /* APL HD Graphics 505 */ \
+	INTEL_VGA_DEVICE(0x5A85, info)  /* APL HD Graphics 500 */
 
 #endif /* _I915_PCIIDS_H */
diff -druNp --no-dereference linux-libre-4.4-gnu/include/drm/ttm/ttm_bo_api.h linux-libre-4.4.107-gnu/include/drm/ttm/ttm_bo_api.h
--- linux-libre-4.4-gnu/include/drm/ttm/ttm_bo_api.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/include/drm/ttm/ttm_bo_api.h	2017-12-20 04:05:01.000000000 -0500
@@ -316,6 +316,20 @@ ttm_bo_reference(struct ttm_buffer_objec
  */
 extern int ttm_bo_wait(struct ttm_buffer_object *bo, bool lazy,
 		       bool interruptible, bool no_wait);
+
+/**
+ * ttm_bo_mem_compat - Check if proposed placement is compatible with a bo
+ *
+ * @placement:  Return immediately if buffer is busy.
+ * @mem:  The struct ttm_mem_reg indicating the region where the bo resides
+ * @new_flags: Describes compatible placement found
+ *
+ * Returns true if the placement is compatible
+ */
+extern bool ttm_bo_mem_compat(struct ttm_placement *placement,
+			      struct ttm_mem_reg *mem,
+			      uint32_t *new_flags);
+
 /**
  * ttm_bo_validate
  *
diff -druNp --no-dereference linux-libre-4.4-gnu/include/drm/ttm/ttm_object.h linux-libre-4.4.107-gnu/include/drm/ttm/ttm_object.h
--- linux-libre-4.4-gnu/include/drm/ttm/ttm_object.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/include/drm/ttm/ttm_object.h	2017-12-20 04:05:01.000000000 -0500
@@ -229,6 +229,8 @@ extern void ttm_base_object_unref(struct
  * @ref_type: The type of reference.
  * @existed: Upon completion, indicates that an identical reference object
  * already existed, and the refcount was upped on that object instead.
+ * @require_existed: Fail with -EPERM if an identical ref object didn't
+ * already exist.
  *
  * Checks that the base object is shareable and adds a ref object to it.
  *
@@ -243,7 +245,8 @@ extern void ttm_base_object_unref(struct
  */
 extern int ttm_ref_object_add(struct ttm_object_file *tfile,
 			      struct ttm_base_object *base,
-			      enum ttm_ref_type ref_type, bool *existed);
+			      enum ttm_ref_type ref_type, bool *existed,
+			      bool require_existed);
 
 extern bool ttm_ref_object_exists(struct ttm_object_file *tfile,
 				  struct ttm_base_object *base);
diff -druNp --no-dereference linux-libre-4.4-gnu/include/dt-bindings/pinctrl/omap.h linux-libre-4.4.107-gnu/include/dt-bindings/pinctrl/omap.h
--- linux-libre-4.4-gnu/include/dt-bindings/pinctrl/omap.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/include/dt-bindings/pinctrl/omap.h	2017-12-20 04:05:01.000000000 -0500
@@ -45,8 +45,8 @@
 #define PIN_OFF_NONE		0
 #define PIN_OFF_OUTPUT_HIGH	(OFF_EN | OFFOUT_EN | OFFOUT_VAL)
 #define PIN_OFF_OUTPUT_LOW	(OFF_EN | OFFOUT_EN)
-#define PIN_OFF_INPUT_PULLUP	(OFF_EN | OFF_PULL_EN | OFF_PULL_UP)
-#define PIN_OFF_INPUT_PULLDOWN	(OFF_EN | OFF_PULL_EN)
+#define PIN_OFF_INPUT_PULLUP	(OFF_EN | OFFOUT_EN | OFF_PULL_EN | OFF_PULL_UP)
+#define PIN_OFF_INPUT_PULLDOWN	(OFF_EN | OFFOUT_EN | OFF_PULL_EN)
 #define PIN_OFF_WAKEUPENABLE	WAKEUP_EN
 
 /*
diff -druNp --no-dereference linux-libre-4.4-gnu/include/linux/acpi.h linux-libre-4.4.107-gnu/include/linux/acpi.h
--- linux-libre-4.4-gnu/include/linux/acpi.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/include/linux/acpi.h	2017-12-20 04:05:01.000000000 -0500
@@ -920,7 +920,7 @@ static inline struct fwnode_handle *acpi
 	return NULL;
 }
 
-#define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, validate, data, fn) \
+#define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \
 	static const void * __acpi_table_##name[]			\
 		__attribute__((unused))					\
 		 = { (void *) table_id,					\
diff -druNp --no-dereference linux-libre-4.4-gnu/include/linux/ata.h linux-libre-4.4.107-gnu/include/linux/ata.h
--- linux-libre-4.4-gnu/include/linux/ata.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/include/linux/ata.h	2017-12-20 04:05:01.000000000 -0500
@@ -487,8 +487,8 @@ enum ata_tf_protocols {
 };
 
 enum ata_ioctls {
-	ATA_IOC_GET_IO32	= 0x309,
-	ATA_IOC_SET_IO32	= 0x324,
+	ATA_IOC_GET_IO32	= 0x309, /* HDIO_GET_32BIT */
+	ATA_IOC_SET_IO32	= 0x324, /* HDIO_SET_32BIT */
 };
 
 /* core structures */
diff -druNp --no-dereference linux-libre-4.4-gnu/include/linux/audit.h linux-libre-4.4.107-gnu/include/linux/audit.h
--- linux-libre-4.4-gnu/include/linux/audit.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/include/linux/audit.h	2017-12-20 04:05:01.000000000 -0500
@@ -281,6 +281,20 @@ static inline int audit_socketcall(int n
 		return __audit_socketcall(nargs, args);
 	return 0;
 }
+
+static inline int audit_socketcall_compat(int nargs, u32 *args)
+{
+	unsigned long a[AUDITSC_ARGS];
+	int i;
+
+	if (audit_dummy_context())
+		return 0;
+
+	for (i = 0; i < nargs; i++)
+		a[i] = (unsigned long)args[i];
+	return __audit_socketcall(nargs, a);
+}
+
 static inline int audit_sockaddr(int len, void *addr)
 {
 	if (unlikely(!audit_dummy_context()))
@@ -407,6 +421,12 @@ static inline int audit_socketcall(int n
 {
 	return 0;
 }
+
+static inline int audit_socketcall_compat(int nargs, u32 *args)
+{
+	return 0;
+}
+
 static inline void audit_fd_pair(int fd1, int fd2)
 { }
 static inline int audit_sockaddr(int len, void *addr)
diff -druNp --no-dereference linux-libre-4.4-gnu/include/linux/backing-dev-defs.h linux-libre-4.4.107-gnu/include/linux/backing-dev-defs.h
--- linux-libre-4.4-gnu/include/linux/backing-dev-defs.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/include/linux/backing-dev-defs.h	2017-12-20 04:05:01.000000000 -0500
@@ -163,6 +163,7 @@ struct backing_dev_info {
 	wait_queue_head_t wb_waitq;
 
 	struct device *dev;
+	struct device *owner;
 
 	struct timer_list laptop_mode_wb_timer;
 
diff -druNp --no-dereference linux-libre-4.4-gnu/include/linux/backing-dev.h linux-libre-4.4.107-gnu/include/linux/backing-dev.h
--- linux-libre-4.4-gnu/include/linux/backing-dev.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/include/linux/backing-dev.h	2017-12-20 04:05:01.000000000 -0500
@@ -24,6 +24,7 @@ __printf(3, 4)
 int bdi_register(struct backing_dev_info *bdi, struct device *parent,
 		const char *fmt, ...);
 int bdi_register_dev(struct backing_dev_info *bdi, dev_t dev);
+int bdi_register_owner(struct backing_dev_info *bdi, struct device *owner);
 void bdi_unregister(struct backing_dev_info *bdi);
 
 int __must_check bdi_setup_and_register(struct backing_dev_info *, char *);
diff -druNp --no-dereference linux-libre-4.4-gnu/include/linux/bcma/bcma.h linux-libre-4.4.107-gnu/include/linux/bcma/bcma.h
--- linux-libre-4.4-gnu/include/linux/bcma/bcma.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/include/linux/bcma/bcma.h	2017-12-20 04:05:01.000000000 -0500
@@ -156,6 +156,7 @@ struct bcma_host_ops {
 #define BCMA_CORE_DEFAULT		0xFFF
 
 #define BCMA_MAX_NR_CORES		16
+#define BCMA_CORE_SIZE			0x1000
 
 /* Chip IDs of PCIe devices */
 #define BCMA_CHIP_ID_BCM4313	0x4313
diff -druNp --no-dereference linux-libre-4.4-gnu/include/linux/bio.h linux-libre-4.4.107-gnu/include/linux/bio.h
--- linux-libre-4.4-gnu/include/linux/bio.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/include/linux/bio.h	2017-12-20 04:05:01.000000000 -0500
@@ -310,6 +310,38 @@ static inline void bio_clear_flag(struct
 	bio->bi_flags &= ~(1U << bit);
 }
 
+static inline void bio_get_first_bvec(struct bio *bio, struct bio_vec *bv)
+{
+	*bv = bio_iovec(bio);
+}
+
+static inline void bio_get_last_bvec(struct bio *bio, struct bio_vec *bv)
+{
+	struct bvec_iter iter = bio->bi_iter;
+	int idx;
+
+	if (unlikely(!bio_multiple_segments(bio))) {
+		*bv = bio_iovec(bio);
+		return;
+	}
+
+	bio_advance_iter(bio, &iter, iter.bi_size);
+
+	if (!iter.bi_bvec_done)
+		idx = iter.bi_idx - 1;
+	else	/* in the middle of bvec */
+		idx = iter.bi_idx;
+
+	*bv = bio->bi_io_vec[idx];
+
+	/*
+	 * iter.bi_bvec_done records actual length of the last bvec
+	 * if this bio ends in the middle of one io vector
+	 */
+	if (iter.bi_bvec_done)
+		bv->bv_len = iter.bi_bvec_done;
+}
+
 enum bip_flags {
 	BIP_BLOCK_INTEGRITY	= 1 << 0, /* block layer owns integrity data */
 	BIP_MAPPED_INTEGRITY	= 1 << 1, /* ref tag has been remapped */
@@ -495,11 +527,14 @@ extern unsigned int bvec_nr_vecs(unsigne
 int bio_associate_blkcg(struct bio *bio, struct cgroup_subsys_state *blkcg_css);
 int bio_associate_current(struct bio *bio);
 void bio_disassociate_task(struct bio *bio);
+void bio_clone_blkcg_association(struct bio *dst, struct bio *src);
 #else	/* CONFIG_BLK_CGROUP */
 static inline int bio_associate_blkcg(struct bio *bio,
 			struct cgroup_subsys_state *blkcg_css) { return 0; }
 static inline int bio_associate_current(struct bio *bio) { return -ENOENT; }
 static inline void bio_disassociate_task(struct bio *bio) { }
+static inline void bio_clone_blkcg_association(struct bio *dst,
+			struct bio *src) { }
 #endif	/* CONFIG_BLK_CGROUP */
 
 #ifdef CONFIG_HIGHMEM
diff -druNp --no-dereference linux-libre-4.4-gnu/include/linux/blkdev.h linux-libre-4.4.107-gnu/include/linux/blkdev.h
--- linux-libre-4.4-gnu/include/linux/blkdev.h	2016-01-10 18:01:32.000000000 -0500
+++ linux-libre-4.4.107-gnu/include/linux/blkdev.h	2017-12-20 04:05:01.000000000 -0500
@@ -890,7 +890,7 @@ static inline unsigned int blk_rq_get_ma
 {
 	struct request_queue *q = rq->q;
 
-	if (unlikely(rq->cmd_type == REQ_TYPE_BLOCK_PC))
+	if (unlikely(rq->cmd_type != REQ_TYPE_FS))
 		return q->limits.max_hw_sectors;
 
 	if (!q->limits.chunk_sectors || (rq->cmd_flags & REQ_DISCARD))
@@ -1367,6 +1367,13 @@ static inline void put_dev_sector(Sector
 	page_cache_release(p.v);
 }
 
+static inline bool __bvec_gap_to_prev(struct request_queue *q,
+				struct bio_vec *bprv, unsigned int offset)
+{
+	return offset ||
+		((bprv->bv_offset + bprv->bv_len) & queue_virt_boundary(q));
+}
+
 /*
  * Check if adding a bio_vec after bprv with offse