diff -druNp --no-dereference linux-libre-4.1-gnu/arch/arc/include/asm/atomic.h linux-libre-4.1.6-gnu/arch/arc/include/asm/atomic.h
--- linux-libre-4.1-gnu/arch/arc/include/asm/atomic.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/arc/include/asm/atomic.h	2015-08-16 23:52:51.000000000 -0400
@@ -43,6 +43,12 @@ static inline int atomic_##op##_return(i
 {									\
 	unsigned int temp;						\
 									\
+	/*								\
+	 * Explicit full memory barrier needed before/after as		\
+	 * LLOCK/SCOND thmeselves don't provide any such semantics	\
+	 */								\
+	smp_mb();							\
+									\
 	__asm__ __volatile__(						\
 	"1:	llock   %0, [%1]	\n"				\
 	"	" #asm_op " %0, %0, %2	\n"				\
@@ -52,6 +58,8 @@ static inline int atomic_##op##_return(i
 	: "r"(&v->counter), "ir"(i)					\
 	: "cc");							\
 									\
+	smp_mb();							\
+									\
 	return temp;							\
 }
 
@@ -105,6 +113,9 @@ static inline int atomic_##op##_return(i
 	unsigned long flags;						\
 	unsigned long temp;						\
 									\
+	/*								\
+	 * spin lock/unlock provides the needed smp_mb() before/after	\
+	 */								\
 	atomic_ops_lock(flags);						\
 	temp = v->counter;						\
 	temp c_op i;							\
@@ -142,9 +153,19 @@ ATOMIC_OP(and, &=, and)
 #define __atomic_add_unless(v, a, u)					\
 ({									\
 	int c, old;							\
+									\
+	/*								\
+	 * Explicit full memory barrier needed before/after as		\
+	 * LLOCK/SCOND thmeselves don't provide any such semantics	\
+	 */								\
+	smp_mb();							\
+									\
 	c = atomic_read(v);						\
 	while (c != (u) && (old = atomic_cmpxchg((v), c, c + (a))) != c)\
 		c = old;						\
+									\
+	smp_mb();							\
+									\
 	c;								\
 })
 
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/arc/include/asm/bitops.h linux-libre-4.1.6-gnu/arch/arc/include/asm/bitops.h
--- linux-libre-4.1-gnu/arch/arc/include/asm/bitops.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/arc/include/asm/bitops.h	2015-08-16 23:52:51.000000000 -0400
@@ -18,83 +18,49 @@
 #include <linux/types.h>
 #include <linux/compiler.h>
 #include <asm/barrier.h>
+#ifndef CONFIG_ARC_HAS_LLSC
+#include <asm/smp.h>
+#endif
 
-/*
- * Hardware assisted read-modify-write using ARC700 LLOCK/SCOND insns.
- * The Kconfig glue ensures that in SMP, this is only set if the container
- * SoC/platform has cross-core coherent LLOCK/SCOND
- */
 #if defined(CONFIG_ARC_HAS_LLSC)
 
-static inline void set_bit(unsigned long nr, volatile unsigned long *m)
-{
-	unsigned int temp;
-
-	m += nr >> 5;
-
-	/*
-	 * ARC ISA micro-optimization:
-	 *
-	 * Instructions dealing with bitpos only consider lower 5 bits (0-31)
-	 * 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 it 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 constant @nr, but no code is generated due to const prop.
-	 */
-	if (__builtin_constant_p(nr))
-		nr &= 0x1f;
-
-	__asm__ __volatile__(
-	"1:	llock   %0, [%1]	\n"
-	"	bset    %0, %0, %2	\n"
-	"	scond   %0, [%1]	\n"
-	"	bnz     1b	\n"
-	: "=&r"(temp)
-	: "r"(m), "ir"(nr)
-	: "cc");
-}
-
-static inline void clear_bit(unsigned long nr, volatile unsigned long *m)
-{
-	unsigned int temp;
-
-	m += nr >> 5;
-
-	if (__builtin_constant_p(nr))
-		nr &= 0x1f;
-
-	__asm__ __volatile__(
-	"1:	llock   %0, [%1]	\n"
-	"	bclr    %0, %0, %2	\n"
-	"	scond   %0, [%1]	\n"
-	"	bnz     1b	\n"
-	: "=&r"(temp)
-	: "r"(m), "ir"(nr)
-	: "cc");
-}
-
-static inline void change_bit(unsigned long nr, volatile unsigned long *m)
-{
-	unsigned int temp;
-
-	m += nr >> 5;
-
-	if (__builtin_constant_p(nr))
-		nr &= 0x1f;
+/*
+ * Hardware assisted Atomic-R-M-W
+ */
 
-	__asm__ __volatile__(
-	"1:	llock   %0, [%1]	\n"
-	"	bxor    %0, %0, %2	\n"
-	"	scond   %0, [%1]	\n"
-	"	bnz     1b		\n"
-	: "=&r"(temp)
-	: "r"(m), "ir"(nr)
-	: "cc");
+#define BIT_OP(op, c_op, asm_op)					\
+static inline void op##_bit(unsigned long nr, volatile unsigned long *m)\
+{									\
+	unsigned int temp;						\
+									\
+	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__(						\
+	"1:	llock       %0, [%1]		\n"			\
+	"	" #asm_op " %0, %0, %2	\n"				\
+	"	scond       %0, [%1]		\n"			\
+	"	bnz         1b			\n"			\
+	: "=&r"(temp)	/* Early clobber, to prevent reg reuse */	\
+	: "r"(m),	/* Not "m": llock only supports reg direct addr mode */	\
+	  "ir"(nr)							\
+	: "cc");							\
 }
 
 /*
@@ -108,75 +74,37 @@ static inline void change_bit(unsigned l
  * Since ARC lacks a equivalent h/w primitive, the bit is set unconditionally
  * and the old value of bit is returned
  */
-static inline int test_and_set_bit(unsigned long nr, volatile unsigned long *m)
-{
-	unsigned long old, temp;
-
-	m += nr >> 5;
-
-	if (__builtin_constant_p(nr))
-		nr &= 0x1f;
-
-	__asm__ __volatile__(
-	"1:	llock   %0, [%2]	\n"
-	"	bset    %1, %0, %3	\n"
-	"	scond   %1, [%2]	\n"
-	"	bnz     1b		\n"
-	: "=&r"(old), "=&r"(temp)
-	: "r"(m), "ir"(nr)
-	: "cc");
-
-	return (old & (1 << nr)) != 0;
-}
-
-static inline int
-test_and_clear_bit(unsigned long nr, volatile unsigned long *m)
-{
-	unsigned int old, temp;
-
-	m += nr >> 5;
-
-	if (__builtin_constant_p(nr))
-		nr &= 0x1f;
-
-	__asm__ __volatile__(
-	"1:	llock   %0, [%2]	\n"
-	"	bclr    %1, %0, %3	\n"
-	"	scond   %1, [%2]	\n"
-	"	bnz     1b		\n"
-	: "=&r"(old), "=&r"(temp)
-	: "r"(m), "ir"(nr)
-	: "cc");
-
-	return (old & (1 << nr)) != 0;
-}
-
-static inline int
-test_and_change_bit(unsigned long nr, volatile unsigned long *m)
-{
-	unsigned int old, temp;
-
-	m += nr >> 5;
-
-	if (__builtin_constant_p(nr))
-		nr &= 0x1f;
-
-	__asm__ __volatile__(
-	"1:	llock   %0, [%2]	\n"
-	"	bxor    %1, %0, %3	\n"
-	"	scond   %1, [%2]	\n"
-	"	bnz     1b		\n"
-	: "=&r"(old), "=&r"(temp)
-	: "r"(m), "ir"(nr)
-	: "cc");
-
-	return (old & (1 << nr)) != 0;
+#define TEST_N_BIT_OP(op, c_op, asm_op)					\
+static inline int test_and_##op##_bit(unsigned long nr, volatile unsigned long *m)\
+{									\
+	unsigned long old, temp;					\
+									\
+	m += nr >> 5;							\
+									\
+	nr &= 0x1f;							\
+									\
+	/*								\
+	 * Explicit full memory barrier needed before/after as		\
+	 * LLOCK/SCOND themselves don't provide any such smenatic	\
+	 */								\
+	smp_mb();							\
+									\
+	__asm__ __volatile__(						\
+	"1:	llock       %0, [%2]	\n"				\
+	"	" #asm_op " %1, %0, %3	\n"				\
+	"	scond       %1, [%2]	\n"				\
+	"	bnz         1b		\n"				\
+	: "=&r"(old), "=&r"(temp)					\
+	: "r"(m), "ir"(nr)						\
+	: "cc");							\
+									\
+	smp_mb();							\
+									\
+	return (old & (1 << nr)) != 0;					\
 }
 
 #else	/* !CONFIG_ARC_HAS_LLSC */
 
-#include <asm/smp.h>
-
 /*
  * Non hardware assisted Atomic-R-M-W
  * Locking would change to irq-disabling only (UP) and spinlocks (SMP)
@@ -193,108 +121,37 @@ test_and_change_bit(unsigned long nr, vo
  *             at compile time)
  */
 
-static inline void set_bit(unsigned long nr, volatile unsigned long *m)
-{
-	unsigned long temp, flags;
-	m += nr >> 5;
-
-	if (__builtin_constant_p(nr))
-		nr &= 0x1f;
-
-	bitops_lock(flags);
-
-	temp = *m;
-	*m = temp | (1UL << nr);
-
-	bitops_unlock(flags);
-}
-
-static inline void clear_bit(unsigned long nr, volatile unsigned long *m)
-{
-	unsigned long temp, flags;
-	m += nr >> 5;
-
-	if (__builtin_constant_p(nr))
-		nr &= 0x1f;
-
-	bitops_lock(flags);
-
-	temp = *m;
-	*m = temp & ~(1UL << nr);
-
-	bitops_unlock(flags);
-}
-
-static inline void change_bit(unsigned long nr, volatile unsigned long *m)
-{
-	unsigned long temp, flags;
-	m += nr >> 5;
-
-	if (__builtin_constant_p(nr))
-		nr &= 0x1f;
-
-	bitops_lock(flags);
-
-	temp = *m;
-	*m = temp ^ (1UL << nr);
-
-	bitops_unlock(flags);
-}
-
-static inline int test_and_set_bit(unsigned long nr, volatile unsigned long *m)
-{
-	unsigned long old, flags;
-	m += nr >> 5;
-
-	if (__builtin_constant_p(nr))
-		nr &= 0x1f;
-
-	bitops_lock(flags);
-
-	old = *m;
-	*m = old | (1 << nr);
-
-	bitops_unlock(flags);
-
-	return (old & (1 << nr)) != 0;
-}
-
-static inline int
-test_and_clear_bit(unsigned long nr, volatile unsigned long *m)
-{
-	unsigned long old, flags;
-	m += nr >> 5;
-
-	if (__builtin_constant_p(nr))
-		nr &= 0x1f;
-
-	bitops_lock(flags);
-
-	old = *m;
-	*m = old & ~(1 << nr);
-
-	bitops_unlock(flags);
-
-	return (old & (1 << nr)) != 0;
+#define BIT_OP(op, c_op, asm_op)					\
+static inline void op##_bit(unsigned long nr, volatile unsigned long *m)\
+{									\
+	unsigned long temp, flags;					\
+	m += nr >> 5;							\
+									\
+	/*								\
+	 * spin lock/unlock provide the needed smp_mb() before/after	\
+	 */								\
+	bitops_lock(flags);						\
+									\
+	temp = *m;							\
+	*m = temp c_op (1UL << (nr & 0x1f));					\
+									\
+	bitops_unlock(flags);						\
 }
 
-static inline int
-test_and_change_bit(unsigned long nr, volatile unsigned long *m)
-{
-	unsigned long old, flags;
-	m += nr >> 5;
-
-	if (__builtin_constant_p(nr))
-		nr &= 0x1f;
-
-	bitops_lock(flags);
-
-	old = *m;
-	*m = old ^ (1 << nr);
-
-	bitops_unlock(flags);
-
-	return (old & (1 << nr)) != 0;
+#define TEST_N_BIT_OP(op, c_op, asm_op)					\
+static inline int test_and_##op##_bit(unsigned long nr, volatile unsigned long *m)\
+{									\
+	unsigned long old, flags;					\
+	m += nr >> 5;							\
+									\
+	bitops_lock(flags);						\
+									\
+	old = *m;							\
+	*m = old c_op (1UL << (nr & 0x1f));				\
+									\
+	bitops_unlock(flags);						\
+									\
+	return (old & (1UL << (nr & 0x1f))) != 0;			\
 }
 
 #endif /* CONFIG_ARC_HAS_LLSC */
@@ -303,86 +160,45 @@ test_and_change_bit(unsigned long nr, vo
  * Non atomic variants
  **************************************/
 
-static inline void __set_bit(unsigned long nr, volatile unsigned long *m)
-{
-	unsigned long temp;
-	m += nr >> 5;
-
-	if (__builtin_constant_p(nr))
-		nr &= 0x1f;
-
-	temp = *m;
-	*m = temp | (1UL << nr);
-}
-
-static inline void __clear_bit(unsigned long nr, volatile unsigned long *m)
-{
-	unsigned long temp;
-	m += nr >> 5;
-
-	if (__builtin_constant_p(nr))
-		nr &= 0x1f;
-
-	temp = *m;
-	*m = temp & ~(1UL << nr);
-}
-
-static inline void __change_bit(unsigned long nr, volatile unsigned long *m)
-{
-	unsigned long temp;
-	m += nr >> 5;
-
-	if (__builtin_constant_p(nr))
-		nr &= 0x1f;
-
-	temp = *m;
-	*m = temp ^ (1UL << nr);
-}
-
-static inline int
-__test_and_set_bit(unsigned long nr, volatile unsigned long *m)
-{
-	unsigned long old;
-	m += nr >> 5;
-
-	if (__builtin_constant_p(nr))
-		nr &= 0x1f;
-
-	old = *m;
-	*m = old | (1 << nr);
-
-	return (old & (1 << nr)) != 0;
+#define __BIT_OP(op, c_op, asm_op)					\
+static inline void __##op##_bit(unsigned long nr, volatile unsigned long *m)	\
+{									\
+	unsigned long temp;						\
+	m += nr >> 5;							\
+									\
+	temp = *m;							\
+	*m = temp c_op (1UL << (nr & 0x1f));				\
 }
 
-static inline int
-__test_and_clear_bit(unsigned long nr, volatile unsigned long *m)
-{
-	unsigned long old;
-	m += nr >> 5;
-
-	if (__builtin_constant_p(nr))
-		nr &= 0x1f;
-
-	old = *m;
-	*m = old & ~(1 << nr);
-
-	return (old & (1 << nr)) != 0;
+#define __TEST_N_BIT_OP(op, c_op, asm_op)				\
+static inline int __test_and_##op##_bit(unsigned long nr, volatile unsigned long *m)\
+{									\
+	unsigned long old;						\
+	m += nr >> 5;							\
+									\
+	old = *m;							\
+	*m = old c_op (1UL << (nr & 0x1f));				\
+									\
+	return (old & (1UL << (nr & 0x1f))) != 0;			\
 }
 
-static inline int
-__test_and_change_bit(unsigned long nr, volatile unsigned long *m)
-{
-	unsigned long old;
-	m += nr >> 5;
-
-	if (__builtin_constant_p(nr))
-		nr &= 0x1f;
-
-	old = *m;
-	*m = old ^ (1 << nr);
+#define BIT_OPS(op, c_op, asm_op)					\
+									\
+	/* set_bit(), clear_bit(), change_bit() */			\
+	BIT_OP(op, c_op, asm_op)					\
+									\
+	/* test_and_set_bit(), test_and_clear_bit(), test_and_change_bit() */\
+	TEST_N_BIT_OP(op, c_op, asm_op)					\
+									\
+	/* __set_bit(), __clear_bit(), __change_bit() */		\
+	__BIT_OP(op, c_op, asm_op)					\
+									\
+	/* __test_and_set_bit(), __test_and_clear_bit(), __test_and_change_bit() */\
+	__TEST_N_BIT_OP(op, c_op, asm_op)
 
-	return (old & (1 << nr)) != 0;
-}
+BIT_OPS(set, |, bset)
+BIT_OPS(clear, & ~, bclr)
+BIT_OPS(change, ^, bxor)
 
 /*
  * This routine doesn't need to be atomic.
@@ -394,10 +210,7 @@ test_bit(unsigned int nr, const volatile
 
 	addr += nr >> 5;
 
-	if (__builtin_constant_p(nr))
-		nr &= 0x1f;
-
-	mask = 1 << nr;
+	mask = 1UL << (nr & 0x1f);
 
 	return ((mask & *addr) != 0);
 }
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/arc/include/asm/cmpxchg.h linux-libre-4.1.6-gnu/arch/arc/include/asm/cmpxchg.h
--- linux-libre-4.1-gnu/arch/arc/include/asm/cmpxchg.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/arc/include/asm/cmpxchg.h	2015-08-16 23:52:51.000000000 -0400
@@ -10,6 +10,8 @@
 #define __ASM_ARC_CMPXCHG_H
 
 #include <linux/types.h>
+
+#include <asm/barrier.h>
 #include <asm/smp.h>
 
 #ifdef CONFIG_ARC_HAS_LLSC
@@ -19,16 +21,25 @@ __cmpxchg(volatile void *ptr, unsigned l
 {
 	unsigned long prev;
 
+	/*
+	 * Explicit full memory barrier needed before/after as
+	 * LLOCK/SCOND thmeselves don't provide any such semantics
+	 */
+	smp_mb();
+
 	__asm__ __volatile__(
 	"1:	llock   %0, [%1]	\n"
 	"	brne    %0, %2, 2f	\n"
 	"	scond   %3, [%1]	\n"
 	"	bnz     1b		\n"
 	"2:				\n"
-	: "=&r"(prev)
-	: "r"(ptr), "ir"(expected),
-	  "r"(new) /* can't be "ir". scond can't take limm for "b" */
-	: "cc");
+	: "=&r"(prev)	/* Early clobber, to prevent reg reuse */
+	: "r"(ptr),	/* Not "m": llock only supports reg direct addr mode */
+	  "ir"(expected),
+	  "r"(new)	/* can't be "ir". scond can't take LIMM for "b" */
+	: "cc", "memory"); /* so that gcc knows memory is being written here */
+
+	smp_mb();
 
 	return prev;
 }
@@ -42,6 +53,9 @@ __cmpxchg(volatile void *ptr, unsigned l
 	int prev;
 	volatile unsigned long *p = ptr;
 
+	/*
+	 * spin lock/unlock provide the needed smp_mb() before/after
+	 */
 	atomic_ops_lock(flags);
 	prev = *p;
 	if (prev == expected)
@@ -77,12 +91,16 @@ static inline unsigned long __xchg(unsig
 
 	switch (size) {
 	case 4:
+		smp_mb();
+
 		__asm__ __volatile__(
 		"	ex  %0, [%1]	\n"
 		: "+r"(val)
 		: "r"(ptr)
 		: "memory");
 
+		smp_mb();
+
 		return val;
 	}
 	return __xchg_bad_pointer();
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/arc/include/asm/ptrace.h linux-libre-4.1.6-gnu/arch/arc/include/asm/ptrace.h
--- linux-libre-4.1-gnu/arch/arc/include/asm/ptrace.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/arc/include/asm/ptrace.h	2015-08-16 23:52:51.000000000 -0400
@@ -63,7 +63,7 @@ struct callee_regs {
 	long r25, r24, r23, r22, r21, r20, r19, r18, r17, r16, r15, r14, r13;
 };
 
-#define instruction_pointer(regs)	((regs)->ret)
+#define instruction_pointer(regs)	(unsigned long)((regs)->ret)
 #define profile_pc(regs)		instruction_pointer(regs)
 
 /* return 1 if user mode or 0 if kernel mode */
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/arc/include/asm/spinlock.h linux-libre-4.1.6-gnu/arch/arc/include/asm/spinlock.h
--- linux-libre-4.1-gnu/arch/arc/include/asm/spinlock.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/arc/include/asm/spinlock.h	2015-08-16 23:52:51.000000000 -0400
@@ -22,24 +22,46 @@ static inline void arch_spin_lock(arch_s
 {
 	unsigned int tmp = __ARCH_SPIN_LOCK_LOCKED__;
 
+	/*
+	 * This smp_mb() is technically superfluous, we only need the one
+	 * after the lock for providing the ACQUIRE semantics.
+	 * However doing the "right" thing was regressing hackbench
+	 * so keeping this, pending further investigation
+	 */
+	smp_mb();
+
 	__asm__ __volatile__(
 	"1:	ex  %0, [%1]		\n"
 	"	breq  %0, %2, 1b	\n"
 	: "+&r" (tmp)
 	: "r"(&(lock->slock)), "ir"(__ARCH_SPIN_LOCK_LOCKED__)
 	: "memory");
+
+	/*
+	 * ACQUIRE barrier to ensure load/store after taking the lock
+	 * don't "bleed-up" out of the critical section (leak-in is allowed)
+	 * http://www.spinics.net/lists/kernel/msg2010409.html
+	 *
+	 * ARCv2 only has load-load, store-store and all-all barrier
+	 * thus need the full all-all barrier
+	 */
+	smp_mb();
 }
 
 static inline int arch_spin_trylock(arch_spinlock_t *lock)
 {
 	unsigned int tmp = __ARCH_SPIN_LOCK_LOCKED__;
 
+	smp_mb();
+
 	__asm__ __volatile__(
 	"1:	ex  %0, [%1]		\n"
 	: "+r" (tmp)
 	: "r"(&(lock->slock))
 	: "memory");
 
+	smp_mb();
+
 	return (tmp == __ARCH_SPIN_LOCK_UNLOCKED__);
 }
 
@@ -47,12 +69,22 @@ static inline void arch_spin_unlock(arch
 {
 	unsigned int tmp = __ARCH_SPIN_LOCK_UNLOCKED__;
 
+	/*
+	 * RELEASE barrier: given the instructions avail on ARCv2, full barrier
+	 * is the only option
+	 */
+	smp_mb();
+
 	__asm__ __volatile__(
 	"	ex  %0, [%1]		\n"
 	: "+r" (tmp)
 	: "r"(&(lock->slock))
 	: "memory");
 
+	/*
+	 * superfluous, but keeping for now - see pairing version in
+	 * arch_spin_lock above
+	 */
 	smp_mb();
 }
 
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/arc/kernel/perf_event.c linux-libre-4.1.6-gnu/arch/arc/kernel/perf_event.c
--- linux-libre-4.1-gnu/arch/arc/kernel/perf_event.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/arc/kernel/perf_event.c	2015-08-16 23:52:51.000000000 -0400
@@ -266,7 +266,6 @@ static int arc_pmu_add(struct perf_event
 
 static int arc_pmu_device_probe(struct platform_device *pdev)
 {
-	struct arc_pmu *arc_pmu;
 	struct arc_reg_pct_build pct_bcr;
 	struct arc_reg_cc_build cc_bcr;
 	int i, j, ret;
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/arc/Makefile linux-libre-4.1.6-gnu/arch/arc/Makefile
--- linux-libre-4.1-gnu/arch/arc/Makefile	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/arc/Makefile	2015-08-16 23:52:51.000000000 -0400
@@ -43,7 +43,8 @@ endif
 
 ifndef CONFIG_CC_OPTIMIZE_FOR_SIZE
 # Generic build system uses -O2, we want -O3
-cflags-y  += -O3
+# Note: No need to add to cflags-y as that happens anyways
+ARCH_CFLAGS += -O3
 endif
 
 # small data is default for elf32 tool-chain. If not usable, disable it
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/arm/boot/dts/am57xx-beagle-x15.dts linux-libre-4.1.6-gnu/arch/arm/boot/dts/am57xx-beagle-x15.dts
--- linux-libre-4.1-gnu/arch/arm/boot/dts/am57xx-beagle-x15.dts	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/arm/boot/dts/am57xx-beagle-x15.dts	2015-08-16 23:52:51.000000000 -0400
@@ -544,6 +544,10 @@
 	phy-supply = <&ldousb_reg>;
 };
 
+&usb2_phy2 {
+	phy-supply = <&ldousb_reg>;
+};
+
 &usb1 {
 	dr_mode = "host";
 	pinctrl-names = "default";
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/arm/boot/dts/armada-370.dtsi linux-libre-4.1.6-gnu/arch/arm/boot/dts/armada-370.dtsi
--- linux-libre-4.1-gnu/arch/arm/boot/dts/armada-370.dtsi	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/arm/boot/dts/armada-370.dtsi	2015-08-16 23:52:51.000000000 -0400
@@ -307,6 +307,14 @@
 					dmacap,memset;
 				};
 			};
+
+			ethernet@70000 {
+				compatible = "marvell,armada-370-neta";
+			};
+
+			ethernet@74000 {
+				compatible = "marvell,armada-370-neta";
+			};
 		};
 	};
 };
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/arm/boot/dts/armada-370-xp.dtsi linux-libre-4.1.6-gnu/arch/arm/boot/dts/armada-370-xp.dtsi
--- linux-libre-4.1-gnu/arch/arm/boot/dts/armada-370-xp.dtsi	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/arm/boot/dts/armada-370-xp.dtsi	2015-08-16 23:52:51.000000000 -0400
@@ -270,7 +270,6 @@
 			};
 
 			eth0: ethernet@70000 {
-				compatible = "marvell,armada-370-neta";
 				reg = <0x70000 0x4000>;
 				interrupts = <8>;
 				clocks = <&gateclk 4>;
@@ -286,7 +285,6 @@
 			};
 
 			eth1: ethernet@74000 {
-				compatible = "marvell,armada-370-neta";
 				reg = <0x74000 0x4000>;
 				interrupts = <10>;
 				clocks = <&gateclk 3>;
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/arm/boot/dts/armada-xp.dtsi linux-libre-4.1.6-gnu/arch/arm/boot/dts/armada-xp.dtsi
--- linux-libre-4.1-gnu/arch/arm/boot/dts/armada-xp.dtsi	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/arm/boot/dts/armada-xp.dtsi	2015-08-16 23:52:51.000000000 -0400
@@ -177,7 +177,7 @@
 			};
 
 			eth2: ethernet@30000 {
-				compatible = "marvell,armada-370-neta";
+				compatible = "marvell,armada-xp-neta";
 				reg = <0x30000 0x4000>;
 				interrupts = <12>;
 				clocks = <&gateclk 2>;
@@ -220,6 +220,14 @@
 				};
 			};
 
+			ethernet@70000 {
+				compatible = "marvell,armada-xp-neta";
+			};
+
+			ethernet@74000 {
+				compatible = "marvell,armada-xp-neta";
+			};
+
 			xor@f0900 {
 				compatible = "marvell,orion-xor";
 				reg = <0xF0900 0x100
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/arm/boot/dts/armada-xp-mv78260.dtsi linux-libre-4.1.6-gnu/arch/arm/boot/dts/armada-xp-mv78260.dtsi
--- linux-libre-4.1-gnu/arch/arm/boot/dts/armada-xp-mv78260.dtsi	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/arm/boot/dts/armada-xp-mv78260.dtsi	2015-08-16 23:52:51.000000000 -0400
@@ -318,7 +318,7 @@
 			};
 
 			eth3: ethernet@34000 {
-				compatible = "marvell,armada-370-neta";
+				compatible = "marvell,armada-xp-neta";
 				reg = <0x34000 0x4000>;
 				interrupts = <14>;
 				clocks = <&gateclk 1>;
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/arm/boot/dts/armada-xp-mv78460.dtsi linux-libre-4.1.6-gnu/arch/arm/boot/dts/armada-xp-mv78460.dtsi
--- linux-libre-4.1-gnu/arch/arm/boot/dts/armada-xp-mv78460.dtsi	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/arm/boot/dts/armada-xp-mv78460.dtsi	2015-08-16 23:52:51.000000000 -0400
@@ -356,7 +356,7 @@
 			};
 
 			eth3: ethernet@34000 {
-				compatible = "marvell,armada-370-neta";
+				compatible = "marvell,armada-xp-neta";
 				reg = <0x34000 0x4000>;
 				interrupts = <14>;
 				clocks = <&gateclk 1>;
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/arm/boot/dts/at91sam9g45.dtsi linux-libre-4.1.6-gnu/arch/arm/boot/dts/at91sam9g45.dtsi
--- linux-libre-4.1-gnu/arch/arm/boot/dts/at91sam9g45.dtsi	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/arm/boot/dts/at91sam9g45.dtsi	2015-08-16 23:52:51.000000000 -0400
@@ -1148,7 +1148,7 @@
 			usb2: gadget@fff78000 {
 				#address-cells = <1>;
 				#size-cells = <0>;
-				compatible = "atmel,at91sam9rl-udc";
+				compatible = "atmel,at91sam9g45-udc";
 				reg = <0x00600000 0x80000
 				       0xfff78000 0x400>;
 				interrupts = <27 IRQ_TYPE_LEVEL_HIGH 0>;
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/arm/boot/dts/at91sam9x5.dtsi linux-libre-4.1.6-gnu/arch/arm/boot/dts/at91sam9x5.dtsi
--- linux-libre-4.1-gnu/arch/arm/boot/dts/at91sam9x5.dtsi	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/arm/boot/dts/at91sam9x5.dtsi	2015-08-16 23:52:51.000000000 -0400
@@ -1062,7 +1062,7 @@
 			usb2: gadget@f803c000 {
 				#address-cells = <1>;
 				#size-cells = <0>;
-				compatible = "atmel,at91sam9rl-udc";
+				compatible = "atmel,at91sam9g45-udc";
 				reg = <0x00500000 0x80000
 				       0xf803c000 0x400>;
 				interrupts = <23 IRQ_TYPE_LEVEL_HIGH 0>;
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/arm/boot/dts/at91-sama5d4ek.dts linux-libre-4.1.6-gnu/arch/arm/boot/dts/at91-sama5d4ek.dts
--- linux-libre-4.1-gnu/arch/arm/boot/dts/at91-sama5d4ek.dts	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/arm/boot/dts/at91-sama5d4ek.dts	2015-08-16 23:52:51.000000000 -0400
@@ -108,8 +108,8 @@
 			mmc0: mmc@f8000000 {
 				pinctrl-names = "default";
 				pinctrl-0 = <&pinctrl_mmc0_clk_cmd_dat0 &pinctrl_mmc0_dat1_3 &pinctrl_mmc0_cd>;
-				slot@1 {
-					reg = <1>;
+				slot@0 {
+					reg = <0>;
 					bus-width = <4>;
 					cd-gpios = <&pioE 5 0>;
 				};
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/arm/boot/dts/dra72-evm.dts linux-libre-4.1.6-gnu/arch/arm/boot/dts/dra72-evm.dts
--- linux-libre-4.1-gnu/arch/arm/boot/dts/dra72-evm.dts	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/arm/boot/dts/dra72-evm.dts	2015-08-16 23:52:51.000000000 -0400
@@ -497,9 +497,10 @@
 
 &dcan1 {
 	status = "ok";
-	pinctrl-names = "default", "sleep";
-	pinctrl-0 = <&dcan1_pins_default>;
+	pinctrl-names = "default", "sleep", "active";
+	pinctrl-0 = <&dcan1_pins_sleep>;
 	pinctrl-1 = <&dcan1_pins_sleep>;
+	pinctrl-2 = <&dcan1_pins_default>;
 };
 
 &qspi {
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/arm/boot/dts/dra7-evm.dts linux-libre-4.1.6-gnu/arch/arm/boot/dts/dra7-evm.dts
--- linux-libre-4.1-gnu/arch/arm/boot/dts/dra7-evm.dts	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/arm/boot/dts/dra7-evm.dts	2015-08-16 23:52:51.000000000 -0400
@@ -686,7 +686,8 @@
 
 &dcan1 {
 	status = "ok";
-	pinctrl-names = "default", "sleep";
-	pinctrl-0 = <&dcan1_pins_default>;
+	pinctrl-names = "default", "sleep", "active";
+	pinctrl-0 = <&dcan1_pins_sleep>;
 	pinctrl-1 = <&dcan1_pins_sleep>;
+	pinctrl-2 = <&dcan1_pins_default>;
 };
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/arm/boot/dts/imx23.dtsi linux-libre-4.1.6-gnu/arch/arm/boot/dts/imx23.dtsi
--- linux-libre-4.1-gnu/arch/arm/boot/dts/imx23.dtsi	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/arm/boot/dts/imx23.dtsi	2015-08-16 23:52:51.000000000 -0400
@@ -435,6 +435,7 @@
 				interrupts = <36 37 38 39 40 41 42 43 44>;
 				status = "disabled";
 				clocks = <&clks 26>;
+				#io-channel-cells = <1>;
 			};
 
 			spdif@80054000 {
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/arm/boot/dts/imx35.dtsi linux-libre-4.1.6-gnu/arch/arm/boot/dts/imx35.dtsi
--- linux-libre-4.1-gnu/arch/arm/boot/dts/imx35.dtsi	2015-06-22 01:51:11.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/arm/boot/dts/imx35.dtsi	2015-08-17 08:21:31.000000000 -0400
@@ -286,8 +286,8 @@
 			can1: can@53fe4000 {
 				compatible = "fsl,imx35-flexcan", "fsl,p1010-flexcan";
 				reg = <0x53fe4000 0x1000>;
-				clocks = <&clks 33>;
-				clock-names = "ipg";
+				clocks = <&clks 33>, <&clks 33>;
+				clock-names = "ipg", "per";
 				interrupts = <43>;
 				status = "disabled";
 			};
@@ -295,8 +295,8 @@
 			can2: can@53fe8000 {
 				compatible = "fsl,imx35-flexcan", "fsl,p1010-flexcan";
 				reg = <0x53fe8000 0x1000>;
-				clocks = <&clks 34>;
-				clock-names = "ipg";
+				clocks = <&clks 34>, <&clks 34>;
+				clock-names = "ipg", "per";
 				interrupts = <44>;
 				status = "disabled";
 			};
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/arm/boot/dts/k2e-clocks.dtsi linux-libre-4.1.6-gnu/arch/arm/boot/dts/k2e-clocks.dtsi
--- linux-libre-4.1-gnu/arch/arm/boot/dts/k2e-clocks.dtsi	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/arm/boot/dts/k2e-clocks.dtsi	2015-08-16 23:52:51.000000000 -0400
@@ -13,9 +13,8 @@ clocks {
 		#clock-cells = <0>;
 		compatible = "ti,keystone,main-pll-clock";
 		clocks = <&refclksys>;
-		reg = <0x02620350 4>, <0x02310110 4>;
-		reg-names = "control", "multiplier";
-		fixed-postdiv = <2>;
+		reg = <0x02620350 4>, <0x02310110 4>, <0x02310108 4>;
+		reg-names = "control", "multiplier", "post-divider";
 	};
 
 	papllclk: papllclk@2620358 {
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/arm/boot/dts/k2hk-clocks.dtsi linux-libre-4.1.6-gnu/arch/arm/boot/dts/k2hk-clocks.dtsi
--- linux-libre-4.1-gnu/arch/arm/boot/dts/k2hk-clocks.dtsi	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/arm/boot/dts/k2hk-clocks.dtsi	2015-08-16 23:52:51.000000000 -0400
@@ -22,9 +22,8 @@ clocks {
 		#clock-cells = <0>;
 		compatible = "ti,keystone,main-pll-clock";
 		clocks = <&refclksys>;
-		reg = <0x02620350 4>, <0x02310110 4>;
-		reg-names = "control", "multiplier";
-		fixed-postdiv = <2>;
+		reg = <0x02620350 4>, <0x02310110 4>, <0x02310108 4>;
+		reg-names = "control", "multiplier", "post-divider";
 	};
 
 	papllclk: papllclk@2620358 {
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/arm/boot/dts/k2l-clocks.dtsi linux-libre-4.1.6-gnu/arch/arm/boot/dts/k2l-clocks.dtsi
--- linux-libre-4.1-gnu/arch/arm/boot/dts/k2l-clocks.dtsi	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/arm/boot/dts/k2l-clocks.dtsi	2015-08-16 23:52:51.000000000 -0400
@@ -22,9 +22,8 @@ clocks {
 		#clock-cells = <0>;
 		compatible = "ti,keystone,main-pll-clock";
 		clocks = <&refclksys>;
-		reg = <0x02620350 4>, <0x02310110 4>;
-		reg-names = "control", "multiplier";
-		fixed-postdiv = <2>;
+		reg = <0x02620350 4>, <0x02310110 4>, <0x02310108 4>;
+		reg-names = "control", "multiplier", "post-divider";
 	};
 
 	papllclk: papllclk@2620358 {
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/arm/boot/dts/sama5d3.dtsi linux-libre-4.1.6-gnu/arch/arm/boot/dts/sama5d3.dtsi
--- linux-libre-4.1-gnu/arch/arm/boot/dts/sama5d3.dtsi	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/arm/boot/dts/sama5d3.dtsi	2015-08-16 23:52:51.000000000 -0400
@@ -1321,7 +1321,7 @@
 		usb0: gadget@00500000 {
 			#address-cells = <1>;
 			#size-cells = <0>;
-			compatible = "atmel,at91sam9rl-udc";
+			compatible = "atmel,sama5d3-udc";
 			reg = <0x00500000 0x100000
 			       0xf8030000 0x4000>;
 			interrupts = <33 IRQ_TYPE_LEVEL_HIGH 2>;
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/arm/boot/dts/sama5d4.dtsi linux-libre-4.1.6-gnu/arch/arm/boot/dts/sama5d4.dtsi
--- linux-libre-4.1-gnu/arch/arm/boot/dts/sama5d4.dtsi	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/arm/boot/dts/sama5d4.dtsi	2015-08-16 23:52:51.000000000 -0400
@@ -123,7 +123,7 @@
 		usb0: gadget@00400000 {
 			#address-cells = <1>;
 			#size-cells = <0>;
-			compatible = "atmel,at91sam9rl-udc";
+			compatible = "atmel,sama5d3-udc";
 			reg = <0x00400000 0x100000
 			       0xfc02c000 0x4000>;
 			interrupts = <47 IRQ_TYPE_LEVEL_HIGH 2>;
@@ -1125,10 +1125,10 @@
 				compatible = "atmel,at91sam9g46-aes";
 				reg = <0xfc044000 0x100>;
 				interrupts = <12 IRQ_TYPE_LEVEL_HIGH 0>;
-				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(40)>;
+				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(40))>;
 				dma-names = "tx", "rx";
 				clocks = <&aes_clk>;
 				clock-names = "aes_clk";
@@ -1139,10 +1139,10 @@
 				compatible = "atmel,at91sam9g46-tdes";
 				reg = <0xfc04c000 0x100>;
 				interrupts = <14 IRQ_TYPE_LEVEL_HIGH 0>;
-				dmas = <&dma0 (AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1))
-					AT91_XDMAC_DT_PERID(42)>,
-				       <&dma0 (AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1))
-					AT91_XDMAC_DT_PERID(43)>;
+				dmas = <&dma0 (AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1)
+					| AT91_XDMAC_DT_PERID(42))>,
+				       <&dma0 (AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1)
+					| AT91_XDMAC_DT_PERID(43))>;
 				dma-names = "tx", "rx";
 				clocks = <&tdes_clk>;
 				clock-names = "tdes_clk";
@@ -1153,8 +1153,8 @@
 				compatible = "atmel,at91sam9g46-sha";
 				reg = <0xfc050000 0x100>;
 				interrupts = <15 IRQ_TYPE_LEVEL_HIGH 0>;
-				dmas = <&dma0 (AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1))
-					AT91_XDMAC_DT_PERID(44)>;
+				dmas = <&dma0 (AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1)
+					| AT91_XDMAC_DT_PERID(44))>;
 				dma-names = "tx";
 				clocks = <&sha_clk>;
 				clock-names = "sha_clk";
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/arm/boot/dts/sun5i-a10s.dtsi linux-libre-4.1.6-gnu/arch/arm/boot/dts/sun5i-a10s.dtsi
--- linux-libre-4.1-gnu/arch/arm/boot/dts/sun5i-a10s.dtsi	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/arm/boot/dts/sun5i-a10s.dtsi	2015-08-16 23:52:51.000000000 -0400
@@ -573,7 +573,7 @@
 		};
 
 		rtp: rtp@01c25000 {
-			compatible = "allwinner,sun4i-a10-ts";
+			compatible = "allwinner,sun5i-a13-ts";
 			reg = <0x01c25000 0x100>;
 			interrupts = <29>;
 			#thermal-sensor-cells = <0>;
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/arm/boot/dts/sun5i-a13.dtsi linux-libre-4.1.6-gnu/arch/arm/boot/dts/sun5i-a13.dtsi
--- linux-libre-4.1-gnu/arch/arm/boot/dts/sun5i-a13.dtsi	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/arm/boot/dts/sun5i-a13.dtsi	2015-08-16 23:52:51.000000000 -0400
@@ -555,7 +555,7 @@
 		};
 
 		rtp: rtp@01c25000 {
-			compatible = "allwinner,sun4i-a10-ts";
+			compatible = "allwinner,sun5i-a13-ts";
 			reg = <0x01c25000 0x100>;
 			interrupts = <29>;
 			#thermal-sensor-cells = <0>;
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/arm/boot/dts/sun7i-a20.dtsi linux-libre-4.1.6-gnu/arch/arm/boot/dts/sun7i-a20.dtsi
--- linux-libre-4.1-gnu/arch/arm/boot/dts/sun7i-a20.dtsi	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/arm/boot/dts/sun7i-a20.dtsi	2015-08-16 23:52:51.000000000 -0400
@@ -1042,7 +1042,7 @@
 		};
 
 		rtp: rtp@01c25000 {
-			compatible = "allwinner,sun4i-a10-ts";
+			compatible = "allwinner,sun5i-a13-ts";
 			reg = <0x01c25000 0x100>;
 			interrupts = <GIC_SPI 29 IRQ_TYPE_LEVEL_HIGH>;
 			#thermal-sensor-cells = <0>;
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/arm/kernel/smp.c linux-libre-4.1.6-gnu/arch/arm/kernel/smp.c
--- linux-libre-4.1-gnu/arch/arm/kernel/smp.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/arm/kernel/smp.c	2015-08-16 23:52:51.000000000 -0400
@@ -576,7 +576,7 @@ void handle_IPI(int ipinr, struct pt_reg
 	struct pt_regs *old_regs = set_irq_regs(regs);
 
 	if ((unsigned)ipinr < NR_IPI) {
-		trace_ipi_entry(ipi_types[ipinr]);
+		trace_ipi_entry_rcuidle(ipi_types[ipinr]);
 		__inc_irq_stat(cpu, ipi_irqs[ipinr]);
 	}
 
@@ -635,7 +635,7 @@ void handle_IPI(int ipinr, struct pt_reg
 	}
 
 	if ((unsigned)ipinr < NR_IPI)
-		trace_ipi_exit(ipi_types[ipinr]);
+		trace_ipi_exit_rcuidle(ipi_types[ipinr]);
 	set_irq_regs(old_regs);
 }
 
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/arm/kvm/interrupts_head.S linux-libre-4.1.6-gnu/arch/arm/kvm/interrupts_head.S
--- linux-libre-4.1-gnu/arch/arm/kvm/interrupts_head.S	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/arm/kvm/interrupts_head.S	2015-08-16 23:52:51.000000000 -0400
@@ -591,8 +591,13 @@ ARM_BE8(rev	r6, r6  )
 .endm
 
 /* Configures the HCPTR (Hyp Coprocessor Trap Register) on entry/return
- * (hardware reset value is 0). Keep previous value in r2. */
-.macro set_hcptr operation, mask
+ * (hardware reset value is 0). Keep previous value in r2.
+ * An ISB is emited on vmexit/vmtrap, but executed on vmexit only if
+ * VFP wasn't already enabled (always executed on vmtrap).
+ * If a label is specified with vmexit, it is branched to if VFP wasn't
+ * enabled.
+ */
+.macro set_hcptr operation, mask, label = none
 	mrc	p15, 4, r2, c1, c1, 2
 	ldr	r3, =\mask
 	.if \operation == vmentry
@@ -601,6 +606,17 @@ ARM_BE8(rev	r6, r6  )
 	bic	r3, r2, r3		@ Don't trap defined coproc-accesses
 	.endif
 	mcr	p15, 4, r3, c1, c1, 2
+	.if \operation != vmentry
+	.if \operation == vmexit
+	tst	r2, #(HCPTR_TCP(10) | HCPTR_TCP(11))
+	beq	1f
+	.endif
+	isb
+	.if \label != none
+	b	\label
+	.endif
+1:
+	.endif
 .endm
 
 /* Configures the HDCR (Hyp Debug Configuration Register) on entry/return
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/arm/kvm/interrupts.S linux-libre-4.1.6-gnu/arch/arm/kvm/interrupts.S
--- linux-libre-4.1-gnu/arch/arm/kvm/interrupts.S	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/arm/kvm/interrupts.S	2015-08-16 23:52:51.000000000 -0400
@@ -170,13 +170,9 @@ __kvm_vcpu_return:
 	@ Don't trap coprocessor accesses for host kernel
 	set_hstr vmexit
 	set_hdcr vmexit
-	set_hcptr vmexit, (HCPTR_TTA | HCPTR_TCP(10) | HCPTR_TCP(11))
+	set_hcptr vmexit, (HCPTR_TTA | HCPTR_TCP(10) | HCPTR_TCP(11)), after_vfp_restore
 
 #ifdef CONFIG_VFPv3
-	@ Save floating point registers we if let guest use them.
-	tst	r2, #(HCPTR_TCP(10) | HCPTR_TCP(11))
-	bne	after_vfp_restore
-
 	@ Switch VFP/NEON hardware state to the host's
 	add	r7, vcpu, #VCPU_VFP_GUEST
 	store_vfp_state r7
@@ -188,6 +184,8 @@ after_vfp_restore:
 	@ Restore FPEXC_EN which we clobbered on entry
 	pop	{r2}
 	VFPFMXR FPEXC, r2
+#else
+after_vfp_restore:
 #endif
 
 	@ Reset Hyp-role
@@ -483,7 +481,7 @@ switch_to_guest_vfp:
 	push	{r3-r7}
 
 	@ NEON/VFP used.  Turn on VFP access.
-	set_hcptr vmexit, (HCPTR_TCP(10) | HCPTR_TCP(11))
+	set_hcptr vmtrap, (HCPTR_TCP(10) | HCPTR_TCP(11))
 
 	@ Switch VFP/NEON hardware state to the guest's
 	add	r7, r0, #VCPU_VFP_HOST
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/arm/kvm/psci.c linux-libre-4.1.6-gnu/arch/arm/kvm/psci.c
--- linux-libre-4.1-gnu/arch/arm/kvm/psci.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/arm/kvm/psci.c	2015-08-16 23:52:51.000000000 -0400
@@ -230,10 +230,6 @@ static int kvm_psci_0_2_call(struct kvm_
 	case PSCI_0_2_FN64_AFFINITY_INFO:
 		val = kvm_psci_vcpu_affinity_info(vcpu);
 		break;
-	case PSCI_0_2_FN_MIGRATE:
-	case PSCI_0_2_FN64_MIGRATE:
-		val = PSCI_RET_NOT_SUPPORTED;
-		break;
 	case PSCI_0_2_FN_MIGRATE_INFO_TYPE:
 		/*
 		 * Trusted OS is MP hence does not require migration
@@ -242,10 +238,6 @@ static int kvm_psci_0_2_call(struct kvm_
 		 */
 		val = PSCI_0_2_TOS_MP;
 		break;
-	case PSCI_0_2_FN_MIGRATE_INFO_UP_CPU:
-	case PSCI_0_2_FN64_MIGRATE_INFO_UP_CPU:
-		val = PSCI_RET_NOT_SUPPORTED;
-		break;
 	case PSCI_0_2_FN_SYSTEM_OFF:
 		kvm_psci_system_off(vcpu);
 		/*
@@ -271,7 +263,8 @@ static int kvm_psci_0_2_call(struct kvm_
 		ret = 0;
 		break;
 	default:
-		return -EINVAL;
+		val = PSCI_RET_NOT_SUPPORTED;
+		break;
 	}
 
 	*vcpu_reg(vcpu, 0) = val;
@@ -291,12 +284,9 @@ static int kvm_psci_0_1_call(struct kvm_
 	case KVM_PSCI_FN_CPU_ON:
 		val = kvm_psci_vcpu_on(vcpu);
 		break;
-	case KVM_PSCI_FN_CPU_SUSPEND:
-	case KVM_PSCI_FN_MIGRATE:
+	default:
 		val = PSCI_RET_NOT_SUPPORTED;
 		break;
-	default:
-		return -EINVAL;
 	}
 
 	*vcpu_reg(vcpu, 0) = val;
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/arm/mach-dove/include/mach/irqs.h linux-libre-4.1.6-gnu/arch/arm/mach-dove/include/mach/irqs.h
--- linux-libre-4.1-gnu/arch/arm/mach-dove/include/mach/irqs.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/arm/mach-dove/include/mach/irqs.h	2015-08-16 23:52:51.000000000 -0400
@@ -14,73 +14,73 @@
 /*
  * Dove Low Interrupt Controller
  */
-#define IRQ_DOVE_BRIDGE		0
-#define IRQ_DOVE_H2C		1
-#define IRQ_DOVE_C2H		2
-#define IRQ_DOVE_NAND		3
-#define IRQ_DOVE_PDMA		4
-#define IRQ_DOVE_SPI1		5
-#define IRQ_DOVE_SPI0		6
-#define IRQ_DOVE_UART_0		7
-#define IRQ_DOVE_UART_1		8
-#define IRQ_DOVE_UART_2		9
-#define IRQ_DOVE_UART_3		10
-#define IRQ_DOVE_I2C		11
-#define IRQ_DOVE_GPIO_0_7	12
-#define IRQ_DOVE_GPIO_8_15	13
-#define IRQ_DOVE_GPIO_16_23	14
-#define IRQ_DOVE_PCIE0_ERR	15
-#define IRQ_DOVE_PCIE0		16
-#define IRQ_DOVE_PCIE1_ERR	17
-#define IRQ_DOVE_PCIE1		18
-#define IRQ_DOVE_I2S0		19
-#define IRQ_DOVE_I2S0_ERR	20
-#define IRQ_DOVE_I2S1		21
-#define IRQ_DOVE_I2S1_ERR	22
-#define IRQ_DOVE_USB_ERR	23
-#define IRQ_DOVE_USB0		24
-#define IRQ_DOVE_USB1		25
-#define IRQ_DOVE_GE00_RX	26
-#define IRQ_DOVE_GE00_TX	27
-#define IRQ_DOVE_GE00_MISC	28
-#define IRQ_DOVE_GE00_SUM	29
-#define IRQ_DOVE_GE00_ERR	30
-#define IRQ_DOVE_CRYPTO		31
+#define IRQ_DOVE_BRIDGE		(1 + 0)
+#define IRQ_DOVE_H2C		(1 + 1)
+#define IRQ_DOVE_C2H		(1 + 2)
+#define IRQ_DOVE_NAND		(1 + 3)
+#define IRQ_DOVE_PDMA		(1 + 4)
+#define IRQ_DOVE_SPI1		(1 + 5)
+#define IRQ_DOVE_SPI0		(1 + 6)
+#define IRQ_DOVE_UART_0		(1 + 7)
+#define IRQ_DOVE_UART_1		(1 + 8)
+#define IRQ_DOVE_UART_2		(1 + 9)
+#define IRQ_DOVE_UART_3		(1 + 10)
+#define IRQ_DOVE_I2C		(1 + 11)
+#define IRQ_DOVE_GPIO_0_7	(1 + 12)
+#define IRQ_DOVE_GPIO_8_15	(1 + 13)
+#define IRQ_DOVE_GPIO_16_23	(1 + 14)
+#define IRQ_DOVE_PCIE0_ERR	(1 + 15)
+#define IRQ_DOVE_PCIE0		(1 + 16)
+#define IRQ_DOVE_PCIE1_ERR	(1 + 17)
+#define IRQ_DOVE_PCIE1		(1 + 18)
+#define IRQ_DOVE_I2S0		(1 + 19)
+#define IRQ_DOVE_I2S0_ERR	(1 + 20)
+#define IRQ_DOVE_I2S1		(1 + 21)
+#define IRQ_DOVE_I2S1_ERR	(1 + 22)
+#define IRQ_DOVE_USB_ERR	(1 + 23)
+#define IRQ_DOVE_USB0		(1 + 24)
+#define IRQ_DOVE_USB1		(1 + 25)
+#define IRQ_DOVE_GE00_RX	(1 + 26)
+#define IRQ_DOVE_GE00_TX	(1 + 27)
+#define IRQ_DOVE_GE00_MISC	(1 + 28)
+#define IRQ_DOVE_GE00_SUM	(1 + 29)
+#define IRQ_DOVE_GE00_ERR	(1 + 30)
+#define IRQ_DOVE_CRYPTO		(1 + 31)
 
 /*
  * Dove High Interrupt Controller
  */
-#define IRQ_DOVE_AC97		32
-#define IRQ_DOVE_PMU		33
-#define IRQ_DOVE_CAM		34
-#define IRQ_DOVE_SDIO0		35
-#define IRQ_DOVE_SDIO1		36
-#define IRQ_DOVE_SDIO0_WAKEUP	37
-#define IRQ_DOVE_SDIO1_WAKEUP	38
-#define IRQ_DOVE_XOR_00		39
-#define IRQ_DOVE_XOR_01		40
-#define IRQ_DOVE_XOR0_ERR	41
-#define IRQ_DOVE_XOR_10		42
-#define IRQ_DOVE_XOR_11		43
-#define IRQ_DOVE_XOR1_ERR	44
-#define IRQ_DOVE_LCD_DCON	45
-#define IRQ_DOVE_LCD1		46
-#define IRQ_DOVE_LCD0		47
-#define IRQ_DOVE_GPU		48
-#define IRQ_DOVE_PERFORM_MNTR	49
-#define IRQ_DOVE_VPRO_DMA1	51
-#define IRQ_DOVE_SSP_TIMER	54
-#define IRQ_DOVE_SSP		55
-#define IRQ_DOVE_MC_L2_ERR	56
-#define IRQ_DOVE_CRYPTO_ERR	59
-#define IRQ_DOVE_GPIO_24_31	60
-#define IRQ_DOVE_HIGH_GPIO	61
-#define IRQ_DOVE_SATA		62
+#define IRQ_DOVE_AC97		(1 + 32)
+#define IRQ_DOVE_PMU		(1 + 33)
+#define IRQ_DOVE_CAM		(1 + 34)
+#define IRQ_DOVE_SDIO0		(1 + 35)
+#define IRQ_DOVE_SDIO1		(1 + 36)
+#define IRQ_DOVE_SDIO0_WAKEUP	(1 + 37)
+#define IRQ_DOVE_SDIO1_WAKEUP	(1 + 38)
+#define IRQ_DOVE_XOR_00		(1 + 39)
+#define IRQ_DOVE_XOR_01		(1 + 40)
+#define IRQ_DOVE_XOR0_ERR	(1 + 41)
+#define IRQ_DOVE_XOR_10		(1 + 42)
+#define IRQ_DOVE_XOR_11		(1 + 43)
+#define IRQ_DOVE_XOR1_ERR	(1 + 44)
+#define IRQ_DOVE_LCD_DCON	(1 + 45)
+#define IRQ_DOVE_LCD1		(1 + 46)
+#define IRQ_DOVE_LCD0		(1 + 47)
+#define IRQ_DOVE_GPU		(1 + 48)
+#define IRQ_DOVE_PERFORM_MNTR	(1 + 49)
+#define IRQ_DOVE_VPRO_DMA1	(1 + 51)
+#define IRQ_DOVE_SSP_TIMER	(1 + 54)
+#define IRQ_DOVE_SSP		(1 + 55)
+#define IRQ_DOVE_MC_L2_ERR	(1 + 56)
+#define IRQ_DOVE_CRYPTO_ERR	(1 + 59)
+#define IRQ_DOVE_GPIO_24_31	(1 + 60)
+#define IRQ_DOVE_HIGH_GPIO	(1 + 61)
+#define IRQ_DOVE_SATA		(1 + 62)
 
 /*
  * DOVE General Purpose Pins
  */
-#define IRQ_DOVE_GPIO_START	64
+#define IRQ_DOVE_GPIO_START	65
 #define NR_GPIO_IRQS		64
 
 /*
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/arm/mach-dove/irq.c linux-libre-4.1.6-gnu/arch/arm/mach-dove/irq.c
--- linux-libre-4.1-gnu/arch/arm/mach-dove/irq.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/arm/mach-dove/irq.c	2015-08-16 23:52:51.000000000 -0400
@@ -126,14 +126,14 @@ __exception_irq_entry dove_legacy_handle
 	stat = readl_relaxed(dove_irq_base + IRQ_CAUSE_LOW_OFF);
 	stat &= readl_relaxed(dove_irq_base + IRQ_MASK_LOW_OFF);
 	if (stat) {
-		unsigned int hwirq = __fls(stat);
+		unsigned int hwirq = 1 + __fls(stat);
 		handle_IRQ(hwirq, regs);
 		return;
 	}
 	stat = readl_relaxed(dove_irq_base + IRQ_CAUSE_HIGH_OFF);
 	stat &= readl_relaxed(dove_irq_base + IRQ_MASK_HIGH_OFF);
 	if (stat) {
-		unsigned int hwirq = 32 + __fls(stat);
+		unsigned int hwirq = 33 + __fls(stat);
 		handle_IRQ(hwirq, regs);
 		return;
 	}
@@ -144,8 +144,8 @@ void __init dove_init_irq(void)
 {
 	int i;
 
-	orion_irq_init(0, IRQ_VIRT_BASE + IRQ_MASK_LOW_OFF);
-	orion_irq_init(32, IRQ_VIRT_BASE + IRQ_MASK_HIGH_OFF);
+	orion_irq_init(1, IRQ_VIRT_BASE + IRQ_MASK_LOW_OFF);
+	orion_irq_init(33, IRQ_VIRT_BASE + IRQ_MASK_HIGH_OFF);
 
 #ifdef CONFIG_MULTI_IRQ_HANDLER
 	set_handle_irq(dove_legacy_handle_irq);
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/arm/mach-imx/clk-imx6q.c linux-libre-4.1.6-gnu/arch/arm/mach-imx/clk-imx6q.c
--- linux-libre-4.1-gnu/arch/arm/mach-imx/clk-imx6q.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/arm/mach-imx/clk-imx6q.c	2015-08-16 23:52:51.000000000 -0400
@@ -443,7 +443,7 @@ static void __init imx6q_clocks_init(str
 	clk[IMX6QDL_CLK_GPMI_IO]      = imx_clk_gate2("gpmi_io",       "enfc",              base + 0x78, 28);
 	clk[IMX6QDL_CLK_GPMI_APB]     = imx_clk_gate2("gpmi_apb",      "usdhc3",            base + 0x78, 30);
 	clk[IMX6QDL_CLK_ROM]          = imx_clk_gate2("rom",           "ahb",               base + 0x7c, 0);
-	clk[IMX6QDL_CLK_SATA]         = imx_clk_gate2("sata",          "ipg",               base + 0x7c, 4);
+	clk[IMX6QDL_CLK_SATA]         = imx_clk_gate2("sata",          "ahb",               base + 0x7c, 4);
 	clk[IMX6QDL_CLK_SDMA]         = imx_clk_gate2("sdma",          "ahb",               base + 0x7c, 6);
 	clk[IMX6QDL_CLK_SPBA]         = imx_clk_gate2("spba",          "ipg",               base + 0x7c, 12);
 	clk[IMX6QDL_CLK_SPDIF]        = imx_clk_gate2("spdif",         "spdif_podf",        base + 0x7c, 14);
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/arm/mach-imx/gpc.c linux-libre-4.1.6-gnu/arch/arm/mach-imx/gpc.c
--- linux-libre-4.1-gnu/arch/arm/mach-imx/gpc.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/arm/mach-imx/gpc.c	2015-08-16 23:52:51.000000000 -0400
@@ -291,8 +291,6 @@ void __init imx_gpc_check_dt(void)
 	}
 }
 
-#ifdef CONFIG_PM_GENERIC_DOMAINS
-
 static void _imx6q_pm_pu_power_off(struct generic_pm_domain *genpd)
 {
 	int iso, iso2sw;
@@ -399,7 +397,6 @@ static struct genpd_onecell_data imx_gpc
 static int imx_gpc_genpd_init(struct device *dev, struct regulator *pu_reg)
 {
 	struct clk *clk;
-	bool is_off;
 	int i;
 
 	imx6q_pu_domain.reg = pu_reg;
@@ -416,18 +413,13 @@ static int imx_gpc_genpd_init(struct dev
 	}
 	imx6q_pu_domain.num_clks = i;
 
-	is_off = IS_ENABLED(CONFIG_PM);
-	if (is_off) {
-		_imx6q_pm_pu_power_off(&imx6q_pu_domain.base);
-	} else {
-		/*
-		 * Enable power if compiled without CONFIG_PM in case the
-		 * bootloader disabled it.
-		 */
-		imx6q_pm_pu_power_on(&imx6q_pu_domain.base);
-	}
+	/* Enable power always in case bootloader disabled it. */
+	imx6q_pm_pu_power_on(&imx6q_pu_domain.base);
 
-	pm_genpd_init(&imx6q_pu_domain.base, NULL, is_off);
+	if (!IS_ENABLED(CONFIG_PM_GENERIC_DOMAINS))
+		return 0;
+
+	pm_genpd_init(&imx6q_pu_domain.base, NULL, false);
 	return of_genpd_add_provider_onecell(dev->of_node,
 					     &imx_gpc_onecell_data);
 
@@ -437,13 +429,6 @@ clk_err:
 	return -EINVAL;
 }
 
-#else
-static inline int imx_gpc_genpd_init(struct device *dev, struct regulator *reg)
-{
-	return 0;
-}
-#endif /* CONFIG_PM_GENERIC_DOMAINS */
-
 static int imx_gpc_probe(struct platform_device *pdev)
 {
 	struct regulator *pu_reg;
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/arm/mach-mvebu/pm-board.c linux-libre-4.1.6-gnu/arch/arm/mach-mvebu/pm-board.c
--- linux-libre-4.1-gnu/arch/arm/mach-mvebu/pm-board.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/arm/mach-mvebu/pm-board.c	2015-08-16 23:52:51.000000000 -0400
@@ -43,6 +43,9 @@ static void mvebu_armada_xp_gp_pm_enter(
 	for (i = 0; i < ARMADA_XP_GP_PIC_NR_GPIOS; i++)
 		ackcmd |= BIT(pic_raw_gpios[i]);
 
+	srcmd = cpu_to_le32(srcmd);
+	ackcmd = cpu_to_le32(ackcmd);
+
 	/*
 	 * Wait a while, the PIC needs quite a bit of time between the
 	 * two GPIO commands.
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/arm/mach-omap2/omap_hwmod.c linux-libre-4.1.6-gnu/arch/arm/mach-omap2/omap_hwmod.c
--- linux-libre-4.1-gnu/arch/arm/mach-omap2/omap_hwmod.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/arm/mach-omap2/omap_hwmod.c	2015-08-16 23:52:51.000000000 -0400
@@ -2373,6 +2373,9 @@ static int of_dev_hwmod_lookup(struct de
  * registers.  This address is needed early so the OCP registers that
  * are part of the device's address space can be ioremapped properly.
  *
+ * If SYSC access is not needed, the registers will not be remapped
+ * and non-availability of MPU access is not treated as an error.
+ *
  * Returns 0 on success, -EINVAL if an invalid hwmod is passed, and
  * -ENXIO on absent or invalid register target address space.
  */
@@ -2387,6 +2390,11 @@ static int __init _init_mpu_rt_base(stru
 
 	_save_mpu_port_index(oh);
 
+	/* if we don't need sysc access we don't need to ioremap */
+	if (!oh->class->sysc)
+		return 0;
+
+	/* we can't continue without MPU PORT if we need sysc access */
 	if (oh->_int_flags & _HWMOD_NO_MPU_PORT)
 		return -ENXIO;
 
@@ -2396,8 +2404,10 @@ static int __init _init_mpu_rt_base(stru
 			 oh->name);
 
 		/* Extract the IO space from device tree blob */
-		if (!np)
+		if (!np) {
+			pr_err("omap_hwmod: %s: no dt node\n", oh->name);
 			return -ENXIO;
+		}
 
 		va_start = of_iomap(np, index + oh->mpu_rt_idx);
 	} else {
@@ -2456,13 +2466,11 @@ static int __init _init(struct omap_hwmo
 				oh->name, np->name);
 	}
 
-	if (oh->class->sysc) {
-		r = _init_mpu_rt_base(oh, NULL, index, np);
-		if (r < 0) {
-			WARN(1, "omap_hwmod: %s: doesn't have mpu register target base\n",
-			     oh->name);
-			return 0;
-		}
+	r = _init_mpu_rt_base(oh, NULL, index, np);
+	if (r < 0) {
+		WARN(1, "omap_hwmod: %s: doesn't have mpu register target base\n",
+		     oh->name);
+		return 0;
 	}
 
 	r = _init_clocks(oh, NULL);
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/arm/mach-pxa/capc7117.c linux-libre-4.1.6-gnu/arch/arm/mach-pxa/capc7117.c
--- linux-libre-4.1-gnu/arch/arm/mach-pxa/capc7117.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/arm/mach-pxa/capc7117.c	2015-08-16 23:52:51.000000000 -0400
@@ -24,6 +24,7 @@
 #include <linux/ata_platform.h>
 #include <linux/serial_8250.h>
 #include <linux/gpio.h>
+#include <linux/regulator/machine.h>
 
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
@@ -144,6 +145,8 @@ static void __init capc7117_init(void)
 
 	capc7117_uarts_init();
 	capc7117_ide_init();
+
+	regulator_has_full_constraints();
 }
 
 MACHINE_START(CAPC7117,
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/arm/mach-pxa/cm-x2xx.c linux-libre-4.1.6-gnu/arch/arm/mach-pxa/cm-x2xx.c
--- linux-libre-4.1-gnu/arch/arm/mach-pxa/cm-x2xx.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/arm/mach-pxa/cm-x2xx.c	2015-08-16 23:52:51.000000000 -0400
@@ -13,6 +13,7 @@
 #include <linux/syscore_ops.h>
 #include <linux/irq.h>
 #include <linux/gpio.h>
+#include <linux/regulator/machine.h>
 
 #include <linux/dm9000.h>
 #include <linux/leds.h>
@@ -466,6 +467,8 @@ static void __init cmx2xx_init(void)
 	cmx2xx_init_ac97();
 	cmx2xx_init_touchscreen();
 	cmx2xx_init_leds();
+
+	regulator_has_full_constraints();
 }
 
 static void __init cmx2xx_init_irq(void)
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/arm/mach-pxa/cm-x300.c linux-libre-4.1.6-gnu/arch/arm/mach-pxa/cm-x300.c
--- linux-libre-4.1-gnu/arch/arm/mach-pxa/cm-x300.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/arm/mach-pxa/cm-x300.c	2015-08-16 23:52:51.000000000 -0400
@@ -835,6 +835,8 @@ static void __init cm_x300_init(void)
 	cm_x300_init_ac97();
 	cm_x300_init_wi2wi();
 	cm_x300_init_bl();
+
+	regulator_has_full_constraints();
 }
 
 static void __init cm_x300_fixup(struct tag *tags, char **cmdline)
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/arm/mach-pxa/colibri-pxa270.c linux-libre-4.1.6-gnu/arch/arm/mach-pxa/colibri-pxa270.c
--- linux-libre-4.1-gnu/arch/arm/mach-pxa/colibri-pxa270.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/arm/mach-pxa/colibri-pxa270.c	2015-08-16 23:52:51.000000000 -0400
@@ -18,6 +18,7 @@
 #include <linux/mtd/partitions.h>
 #include <linux/mtd/physmap.h>
 #include <linux/platform_device.h>
+#include <linux/regulator/machine.h>
 #include <linux/ucb1400.h>
 
 #include <asm/mach/arch.h>
@@ -294,6 +295,8 @@ static void __init colibri_pxa270_init(v
 		printk(KERN_ERR "Illegal colibri_pxa270_baseboard type %d\n",
 				colibri_pxa270_baseboard);
 	}
+
+	regulator_has_full_constraints();
 }
 
 /* The "Income s.r.o. SH-Dmaster PXA270 SBC" board can be booted either
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/arm/mach-pxa/em-x270.c linux-libre-4.1.6-gnu/arch/arm/mach-pxa/em-x270.c
--- linux-libre-4.1-gnu/arch/arm/mach-pxa/em-x270.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/arm/mach-pxa/em-x270.c	2015-08-16 23:52:51.000000000 -0400
@@ -1306,6 +1306,8 @@ static void __init em_x270_init(void)
 	em_x270_init_i2c();
 	em_x270_init_camera();
 	em_x270_userspace_consumers_init();
+
+	regulator_has_full_constraints();
 }
 
 MACHINE_START(EM_X270, "Compulab EM-X270")
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/arm/mach-pxa/icontrol.c linux-libre-4.1.6-gnu/arch/arm/mach-pxa/icontrol.c
--- linux-libre-4.1-gnu/arch/arm/mach-pxa/icontrol.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/arm/mach-pxa/icontrol.c	2015-08-16 23:52:51.000000000 -0400
@@ -26,6 +26,7 @@
 #include <linux/spi/spi.h>
 #include <linux/spi/pxa2xx_spi.h>
 #include <linux/can/platform/mcp251x.h>
+#include <linux/regulator/machine.h>
 
 #include "generic.h"
 
@@ -185,6 +186,8 @@ static void __init icontrol_init(void)
 	mxm_8x10_mmc_init();
 
 	icontrol_can_init();
+
+	regulator_has_full_constraints();
 }
 
 MACHINE_START(ICONTROL, "iControl/SafeTcam boards using Embedian MXM-8x10 CoM")
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/arm/mach-pxa/trizeps4.c linux-libre-4.1.6-gnu/arch/arm/mach-pxa/trizeps4.c
--- linux-libre-4.1-gnu/arch/arm/mach-pxa/trizeps4.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/arm/mach-pxa/trizeps4.c	2015-08-16 23:52:51.000000000 -0400
@@ -26,6 +26,7 @@
 #include <linux/dm9000.h>
 #include <linux/mtd/physmap.h>
 #include <linux/mtd/partitions.h>
+#include <linux/regulator/machine.h>
 #include <linux/i2c/pxa-i2c.h>
 
 #include <asm/types.h>
@@ -534,6 +535,8 @@ static void __init trizeps4_init(void)
 
 	BCR_writew(trizeps_conxs_bcr);
 	board_backlight_power(1);
+
+	regulator_has_full_constraints();
 }
 
 static void __init trizeps4_map_io(void)
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/arm/mach-pxa/vpac270.c linux-libre-4.1.6-gnu/arch/arm/mach-pxa/vpac270.c
--- linux-libre-4.1-gnu/arch/arm/mach-pxa/vpac270.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/arm/mach-pxa/vpac270.c	2015-08-16 23:52:51.000000000 -0400
@@ -24,6 +24,7 @@
 #include <linux/dm9000.h>
 #include <linux/ucb1400.h>
 #include <linux/ata_platform.h>
+#include <linux/regulator/machine.h>
 #include <linux/regulator/max1586.h>
 #include <linux/i2c/pxa-i2c.h>
 
@@ -711,6 +712,8 @@ static void __init vpac270_init(void)
 	vpac270_ts_init();
 	vpac270_rtc_init();
 	vpac270_ide_init();
+
+	regulator_has_full_constraints();
 }
 
 MACHINE_START(VPAC270, "Voipac PXA270")
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/arm/mach-pxa/zeus.c linux-libre-4.1.6-gnu/arch/arm/mach-pxa/zeus.c
--- linux-libre-4.1-gnu/arch/arm/mach-pxa/zeus.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/arm/mach-pxa/zeus.c	2015-08-16 23:52:51.000000000 -0400
@@ -868,6 +868,8 @@ static void __init zeus_init(void)
 	i2c_register_board_info(0, ARRAY_AND_SIZE(zeus_i2c_devices));
 	pxa2xx_set_spi_info(3, &pxa2xx_spi_ssp3_master_info);
 	spi_register_board_info(zeus_spi_board_info, ARRAY_SIZE(zeus_spi_board_info));
+
+	regulator_has_full_constraints();
 }
 
 static struct map_desc zeus_io_desc[] __initdata = {
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/arm/mach-tegra/cpuidle-tegra20.c linux-libre-4.1.6-gnu/arch/arm/mach-tegra/cpuidle-tegra20.c
--- linux-libre-4.1-gnu/arch/arm/mach-tegra/cpuidle-tegra20.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/arm/mach-tegra/cpuidle-tegra20.c	2015-08-16 23:52:51.000000000 -0400
@@ -34,6 +34,7 @@
 #include "iomap.h"
 #include "irq.h"
 #include "pm.h"
+#include "reset.h"
 #include "sleep.h"
 
 #ifdef CONFIG_PM_SLEEP
@@ -70,15 +71,13 @@ static struct cpuidle_driver tegra_idle_
 
 #ifdef CONFIG_PM_SLEEP
 #ifdef CONFIG_SMP
-static void __iomem *pmc = IO_ADDRESS(TEGRA_PMC_BASE);
-
 static int tegra20_reset_sleeping_cpu_1(void)
 {
 	int ret = 0;
 
 	tegra_pen_lock();
 
-	if (readl(pmc + PMC_SCRATCH41) == CPU_RESETTABLE)
+	if (readb(tegra20_cpu1_resettable_status) == CPU_RESETTABLE)
 		tegra20_cpu_shutdown(1);
 	else
 		ret = -EINVAL;
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/arm/mach-tegra/reset.h linux-libre-4.1.6-gnu/arch/arm/mach-tegra/reset.h
--- linux-libre-4.1-gnu/arch/arm/mach-tegra/reset.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/arm/mach-tegra/reset.h	2015-08-16 23:52:51.000000000 -0400
@@ -35,6 +35,7 @@ extern unsigned long __tegra_cpu_reset_h
 
 void __tegra_cpu_reset_handler_start(void);
 void __tegra_cpu_reset_handler(void);
+void __tegra20_cpu1_resettable_status_offset(void);
 void __tegra_cpu_reset_handler_end(void);
 void tegra_secondary_startup(void);
 
@@ -47,6 +48,9 @@ void tegra_secondary_startup(void);
 	(IO_ADDRESS(TEGRA_IRAM_BASE + TEGRA_IRAM_RESET_HANDLER_OFFSET + \
 	((u32)&__tegra_cpu_reset_handler_data[TEGRA_RESET_MASK_LP2] - \
 	 (u32)__tegra_cpu_reset_handler_start)))
+#define tegra20_cpu1_resettable_status \
+	(IO_ADDRESS(TEGRA_IRAM_BASE + TEGRA_IRAM_RESET_HANDLER_OFFSET + \
+	 (u32)__tegra20_cpu1_resettable_status_offset))
 #endif
 
 #define tegra_cpu_reset_handler_offset \
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/arm/mach-tegra/reset-handler.S linux-libre-4.1.6-gnu/arch/arm/mach-tegra/reset-handler.S
--- linux-libre-4.1-gnu/arch/arm/mach-tegra/reset-handler.S	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/arm/mach-tegra/reset-handler.S	2015-08-16 23:52:51.000000000 -0400
@@ -169,10 +169,10 @@ after_errata:
 	cmp	r6, #TEGRA20
 	bne	1f
 	/* If not CPU0, don't let CPU0 reset CPU1 now that CPU1 is coming up. */
-	mov32	r5, TEGRA_PMC_BASE
-	mov	r0, #0
+	mov32	r5, TEGRA_IRAM_BASE + TEGRA_IRAM_RESET_HANDLER_OFFSET
+	mov	r0, #CPU_NOT_RESETTABLE
 	cmp	r10, #0
-	strne	r0, [r5, #PMC_SCRATCH41]
+	strneb	r0, [r5, #__tegra20_cpu1_resettable_status_offset]
 1:
 #endif
 
@@ -281,6 +281,10 @@ __tegra_cpu_reset_handler_data:
 	.rept	TEGRA_RESET_DATA_SIZE
 	.long	0
 	.endr
+	.globl	__tegra20_cpu1_resettable_status_offset
+	.equ	__tegra20_cpu1_resettable_status_offset, \
+					. - __tegra_cpu_reset_handler_start
+	.byte	0
 	.align L1_CACHE_SHIFT
 
 ENTRY(__tegra_cpu_reset_handler_end)
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/arm/mach-tegra/sleep.h linux-libre-4.1.6-gnu/arch/arm/mach-tegra/sleep.h
--- linux-libre-4.1-gnu/arch/arm/mach-tegra/sleep.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/arm/mach-tegra/sleep.h	2015-08-16 23:52:51.000000000 -0400
@@ -18,6 +18,7 @@
 #define __MACH_TEGRA_SLEEP_H
 
 #include "iomap.h"
+#include "irammap.h"
 
 #define TEGRA_ARM_PERIF_VIRT (TEGRA_ARM_PERIF_BASE - IO_CPU_PHYS \
 					+ IO_CPU_VIRT)
@@ -29,6 +30,9 @@
 					+ IO_APB_VIRT)
 #define TEGRA_PMC_VIRT	(TEGRA_PMC_BASE - IO_APB_PHYS + IO_APB_VIRT)
 
+#define TEGRA_IRAM_RESET_BASE_VIRT (IO_IRAM_VIRT + \
+				TEGRA_IRAM_RESET_HANDLER_OFFSET)
+
 /* PMC_SCRATCH37-39 and 41 are used for tegra_pen_lock and idle */
 #define PMC_SCRATCH37	0x130
 #define PMC_SCRATCH38	0x134
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/arm/mach-tegra/sleep-tegra20.S linux-libre-4.1.6-gnu/arch/arm/mach-tegra/sleep-tegra20.S
--- linux-libre-4.1-gnu/arch/arm/mach-tegra/sleep-tegra20.S	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/arm/mach-tegra/sleep-tegra20.S	2015-08-16 23:52:51.000000000 -0400
@@ -97,9 +97,10 @@ ENDPROC(tegra20_hotplug_shutdown)
 ENTRY(tegra20_cpu_shutdown)
 	cmp	r0, #0
 	reteq	lr			@ must not be called for CPU 0
-	mov32	r1, TEGRA_PMC_VIRT + PMC_SCRATCH41
+	mov32	r1, TEGRA_IRAM_RESET_BASE_VIRT
+	ldr	r2, =__tegra20_cpu1_resettable_status_offset
 	mov	r12, #CPU_RESETTABLE
-	str	r12, [r1]
+	strb	r12, [r1, r2]
 
 	cpu_to_halt_reg r1, r0
 	ldr	r3, =TEGRA_FLOW_CTRL_VIRT
@@ -182,38 +183,41 @@ ENDPROC(tegra_pen_unlock)
 /*
  * tegra20_cpu_clear_resettable(void)
  *
- * Called to clear the "resettable soon" flag in PMC_SCRATCH41 when
+ * Called to clear the "resettable soon" flag in IRAM variable when
  * it is expected that the secondary CPU will be idle soon.
  */
 ENTRY(tegra20_cpu_clear_resettable)
-	mov32	r1, TEGRA_PMC_VIRT + PMC_SCRATCH41
+	mov32	r1, TEGRA_IRAM_RESET_BASE_VIRT
+	ldr	r2, =__tegra20_cpu1_resettable_status_offset
 	mov	r12, #CPU_NOT_RESETTABLE
-	str	r12, [r1]
+	strb	r12, [r1, r2]
 	ret	lr
 ENDPROC(tegra20_cpu_clear_resettable)
 
 /*
  * tegra20_cpu_set_resettable_soon(void)
  *
- * Called to set the "resettable soon" flag in PMC_SCRATCH41 when
+ * Called to set the "resettable soon" flag in IRAM variable when
  * it is expected that the secondary CPU will be idle soon.
  */
 ENTRY(tegra20_cpu_set_resettable_soon)
-	mov32	r1, TEGRA_PMC_VIRT + PMC_SCRATCH41
+	mov32	r1, TEGRA_IRAM_RESET_BASE_VIRT
+	ldr	r2, =__tegra20_cpu1_resettable_status_offset
 	mov	r12, #CPU_RESETTABLE_SOON
-	str	r12, [r1]
+	strb	r12, [r1, r2]
 	ret	lr
 ENDPROC(tegra20_cpu_set_resettable_soon)
 
 /*
  * tegra20_cpu_is_resettable_soon(void)
  *
- * Returns true if the "resettable soon" flag in PMC_SCRATCH41 has been
+ * Returns true if the "resettable soon" flag in IRAM variable has been
  * set because it is expected that the secondary CPU will be idle soon.
  */
 ENTRY(tegra20_cpu_is_resettable_soon)
-	mov32	r1, TEGRA_PMC_VIRT + PMC_SCRATCH41
-	ldr	r12, [r1]
+	mov32	r1, TEGRA_IRAM_RESET_BASE_VIRT
+	ldr	r2, =__tegra20_cpu1_resettable_status_offset
+	ldrb	r12, [r1, r2]
 	cmp	r12, #CPU_RESETTABLE_SOON
 	moveq	r0, #1
 	movne	r0, #0
@@ -256,9 +260,10 @@ ENTRY(tegra20_sleep_cpu_secondary_finish
 	mov	r0, #TEGRA_FLUSH_CACHE_LOUIS
 	bl	tegra_disable_clean_inv_dcache
 
-	mov32	r0, TEGRA_PMC_VIRT + PMC_SCRATCH41
+	mov32	r0, TEGRA_IRAM_RESET_BASE_VIRT
+	ldr	r4, =__tegra20_cpu1_resettable_status_offset
 	mov	r3, #CPU_RESETTABLE
-	str	r3, [r0]
+	strb	r3, [r0, r4]
 
 	bl	tegra_cpu_do_idle
 
@@ -274,10 +279,10 @@ ENTRY(tegra20_sleep_cpu_secondary_finish
 
 	bl	tegra_pen_lock
 
-	mov32	r3, TEGRA_PMC_VIRT
-	add	r0, r3, #PMC_SCRATCH41
+	mov32	r0, TEGRA_IRAM_RESET_BASE_VIRT
+	ldr	r4, =__tegra20_cpu1_resettable_status_offset
 	mov	r3, #CPU_NOT_RESETTABLE
-	str	r3, [r0]
+	strb	r3, [r0, r4]
 
 	bl	tegra_pen_unlock
 
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/arm/mm/dma-mapping.c linux-libre-4.1.6-gnu/arch/arm/mm/dma-mapping.c
--- linux-libre-4.1-gnu/arch/arm/mm/dma-mapping.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/arm/mm/dma-mapping.c	2015-08-16 23:52:51.000000000 -0400
@@ -1953,7 +1953,7 @@ static int extend_iommu_mapping(struct d
 {
 	int next_bitmap;
 
-	if (mapping->nr_bitmaps > mapping->extensions)
+	if (mapping->nr_bitmaps >= mapping->extensions)
 		return -EINVAL;
 
 	next_bitmap = mapping->nr_bitmaps;
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/arm/vdso/vdsomunge.c linux-libre-4.1.6-gnu/arch/arm/vdso/vdsomunge.c
--- linux-libre-4.1-gnu/arch/arm/vdso/vdsomunge.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/arm/vdso/vdsomunge.c	2015-08-16 23:52:51.000000000 -0400
@@ -45,13 +45,11 @@
  * it does.
  */
 
-#define _GNU_SOURCE
-
 #include <byteswap.h>
 #include <elf.h>
 #include <errno.h>
-#include <error.h>
 #include <fcntl.h>
+#include <stdarg.h>
 #include <stdbool.h>
 #include <stdio.h>
 #include <stdlib.h>
@@ -82,11 +80,25 @@
 #define EF_ARM_ABI_FLOAT_HARD 0x400
 #endif
 
+static int failed;
+static const char *argv0;
 static const char *outfile;
 
+static void fail(const char *fmt, ...)
+{
+	va_list ap;
+
+	failed = 1;
+	fprintf(stderr, "%s: ", argv0);
+	va_start(ap, fmt);
+	vfprintf(stderr, fmt, ap);
+	va_end(ap);
+	exit(EXIT_FAILURE);
+}
+
 static void cleanup(void)
 {
-	if (error_message_count > 0 && outfile != NULL)
+	if (failed && outfile != NULL)
 		unlink(outfile);
 }
 
@@ -119,68 +131,66 @@ int main(int argc, char **argv)
 	int infd;
 
 	atexit(cleanup);
+	argv0 = argv[0];
 
 	if (argc != 3)
-		error(EXIT_FAILURE, 0, "Usage: %s [infile] [outfile]", argv[0]);
+		fail("Usage: %s [infile] [outfile]\n", argv[0]);
 
 	infile = argv[1];
 	outfile = argv[2];
 
 	infd = open(infile, O_RDONLY);
 	if (infd < 0)
-		error(EXIT_FAILURE, errno, "Cannot open %s", infile);
+		fail("Cannot open %s: %s\n", infile, strerror(errno));
 
 	if (fstat(infd, &stat) != 0)
-		error(EXIT_FAILURE, errno, "Failed stat for %s", infile);
+		fail("Failed stat for %s: %s\n", infile, strerror(errno));
 
 	inbuf = mmap(NULL, stat.st_size, PROT_READ, MAP_PRIVATE, infd, 0);
 	if (inbuf == MAP_FAILED)
-		error(EXIT_FAILURE, errno, "Failed to map %s", infile);
+		fail("Failed to map %s: %s\n", infile, strerror(errno));
 
 	close(infd);
 
 	inhdr = inbuf;
 
 	if (memcmp(&inhdr->e_ident, ELFMAG, SELFMAG) != 0)
-		error(EXIT_FAILURE, 0, "Not an ELF file");
+		fail("Not an ELF file\n");
 
 	if (inhdr->e_ident[EI_CLASS] != ELFCLASS32)
-		error(EXIT_FAILURE, 0, "Unsupported ELF class");
+		fail("Unsupported ELF class\n");
 
 	swap = inhdr->e_ident[EI_DATA] != HOST_ORDER;
 
 	if (read_elf_half(inhdr->e_type, swap) != ET_DYN)
-		error(EXIT_FAILURE, 0, "Not a shared object");
+		fail("Not a shared object\n");
 
-	if (read_elf_half(inhdr->e_machine, swap) != EM_ARM) {
-		error(EXIT_FAILURE, 0, "Unsupported architecture %#x",
-		      inhdr->e_machine);
-	}
+	if (read_elf_half(inhdr->e_machine, swap) != EM_ARM)
+		fail("Unsupported architecture %#x\n", inhdr->e_machine);
 
 	e_flags = read_elf_word(inhdr->e_flags, swap);
 
 	if (EF_ARM_EABI_VERSION(e_flags) != EF_ARM_EABI_VER5) {
-		error(EXIT_FAILURE, 0, "Unsupported EABI version %#x",
-		      EF_ARM_EABI_VERSION(e_flags));
+		fail("Unsupported EABI version %#x\n",
+		     EF_ARM_EABI_VERSION(e_flags));
 	}
 
 	if (e_flags & EF_ARM_ABI_FLOAT_HARD)
-		error(EXIT_FAILURE, 0,
-		      "Unexpected hard-float flag set in e_flags");
+		fail("Unexpected hard-float flag set in e_flags\n");
 
 	clear_soft_float = !!(e_flags & EF_ARM_ABI_FLOAT_SOFT);
 
 	outfd = open(outfile, O_RDWR | O_CREAT | O_TRUNC, S_IRUSR | S_IWUSR);
 	if (outfd < 0)
-		error(EXIT_FAILURE, errno, "Cannot open %s", outfile);
+		fail("Cannot open %s: %s\n", outfile, strerror(errno));
 
 	if (ftruncate(outfd, stat.st_size) != 0)
-		error(EXIT_FAILURE, errno, "Cannot truncate %s", outfile);
+		fail("Cannot truncate %s: %s\n", outfile, strerror(errno));
 
 	outbuf = mmap(NULL, stat.st_size, PROT_READ | PROT_WRITE, MAP_SHARED,
 		      outfd, 0);
 	if (outbuf == MAP_FAILED)
-		error(EXIT_FAILURE, errno, "Failed to map %s", outfile);
+		fail("Failed to map %s: %s\n", outfile, strerror(errno));
 
 	close(outfd);
 
@@ -195,7 +205,7 @@ int main(int argc, char **argv)
 	}
 
 	if (msync(outbuf, stat.st_size, MS_SYNC) != 0)
-		error(EXIT_FAILURE, errno, "Failed to sync %s", outfile);
+		fail("Failed to sync %s: %s\n", outfile, strerror(errno));
 
 	return EXIT_SUCCESS;
 }
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/arm64/kernel/efi.c linux-libre-4.1.6-gnu/arch/arm64/kernel/efi.c
--- linux-libre-4.1-gnu/arch/arm64/kernel/efi.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/arm64/kernel/efi.c	2015-08-16 23:52:51.000000000 -0400
@@ -122,12 +122,12 @@ static int __init uefi_init(void)
 
 	/* Show what we know for posterity */
 	c16 = early_memremap(efi_to_phys(efi.systab->fw_vendor),
-			     sizeof(vendor));
+			     sizeof(vendor) * sizeof(efi_char16_t));
 	if (c16) {
 		for (i = 0; i < (int) sizeof(vendor) - 1 && *c16; ++i)
 			vendor[i] = c16[i];
 		vendor[i] = '\0';
-		early_memunmap(c16, sizeof(vendor));
+		early_memunmap(c16, sizeof(vendor) * sizeof(efi_char16_t));
 	}
 
 	pr_info("EFI v%u.%.02u by %s\n",
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/arm64/kernel/entry.S linux-libre-4.1.6-gnu/arch/arm64/kernel/entry.S
--- linux-libre-4.1-gnu/arch/arm64/kernel/entry.S	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/arm64/kernel/entry.S	2015-08-16 23:52:51.000000000 -0400
@@ -517,6 +517,7 @@ el0_sp_pc:
 	mrs	x26, far_el1
 	// enable interrupts before calling the main handler
 	enable_dbg_and_irq
+	ct_user_exit
 	mov	x0, x26
 	mov	x1, x25
 	mov	x2, sp
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/arm64/kernel/signal32.c linux-libre-4.1.6-gnu/arch/arm64/kernel/signal32.c
--- linux-libre-4.1-gnu/arch/arm64/kernel/signal32.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/arm64/kernel/signal32.c	2015-08-16 23:52:51.000000000 -0400
@@ -168,7 +168,8 @@ int copy_siginfo_to_user32(compat_siginf
 		 * Other callers might not initialize the si_lsb field,
 		 * so check explicitely for the right codes here.
 		 */
-		if (from->si_code == BUS_MCEERR_AR || from->si_code == BUS_MCEERR_AO)
+		if (from->si_signo == SIGBUS &&
+		    (from->si_code == BUS_MCEERR_AR || from->si_code == BUS_MCEERR_AO))
 			err |= __put_user(from->si_addr_lsb, &to->si_addr_lsb);
 #endif
 		break;
@@ -201,8 +202,6 @@ int copy_siginfo_to_user32(compat_siginf
 
 int copy_siginfo_from_user32(siginfo_t *to, compat_siginfo_t __user *from)
 {
-	memset(to, 0, sizeof *to);
-
 	if (copy_from_user(to, from, __ARCH_SI_PREAMBLE_SIZE) ||
 	    copy_from_user(to->_sifields._pad,
 			   from->_sifields._pad, SI_PAD_SIZE))
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/arm64/kernel/smp.c linux-libre-4.1.6-gnu/arch/arm64/kernel/smp.c
--- linux-libre-4.1-gnu/arch/arm64/kernel/smp.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/arm64/kernel/smp.c	2015-08-16 23:52:51.000000000 -0400
@@ -569,7 +569,7 @@ void handle_IPI(int ipinr, struct pt_reg
 	struct pt_regs *old_regs = set_irq_regs(regs);
 
 	if ((unsigned)ipinr < NR_IPI) {
-		trace_ipi_entry(ipi_types[ipinr]);
+		trace_ipi_entry_rcuidle(ipi_types[ipinr]);
 		__inc_irq_stat(cpu, ipi_irqs[ipinr]);
 	}
 
@@ -612,7 +612,7 @@ void handle_IPI(int ipinr, struct pt_reg
 	}
 
 	if ((unsigned)ipinr < NR_IPI)
-		trace_ipi_exit(ipi_types[ipinr]);
+		trace_ipi_exit_rcuidle(ipi_types[ipinr]);
 	set_irq_regs(old_regs);
 }
 
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/arm64/kernel/vdso/Makefile linux-libre-4.1.6-gnu/arch/arm64/kernel/vdso/Makefile
--- linux-libre-4.1-gnu/arch/arm64/kernel/vdso/Makefile	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/arm64/kernel/vdso/Makefile	2015-08-16 23:52:51.000000000 -0400
@@ -15,6 +15,10 @@ ccflags-y := -shared -fno-common -fno-bu
 ccflags-y += -nostdlib -Wl,-soname=linux-vdso.so.1 \
 		$(call cc-ldoption, -Wl$(comma)--hash-style=sysv)
 
+# Workaround for bare-metal (ELF) toolchains that neglect to pass -shared
+# down to collect2, resulting in silent corruption of the vDSO image.
+ccflags-y += -Wl,-shared
+
 obj-y += vdso.o
 extra-y += vdso.lds vdso-offsets.h
 CPPFLAGS_vdso.lds += -P -C -U$(ARCH)
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/arm64/mm/context.c linux-libre-4.1.6-gnu/arch/arm64/mm/context.c
--- linux-libre-4.1-gnu/arch/arm64/mm/context.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/arm64/mm/context.c	2015-08-16 23:52:51.000000000 -0400
@@ -92,6 +92,14 @@ static void reset_context(void *info)
 	unsigned int cpu = smp_processor_id();
 	struct mm_struct *mm = current->active_mm;
 
+	/*
+	 * current->active_mm could be init_mm for the idle thread immediately
+	 * after secondary CPU boot or hotplug. TTBR0_EL1 is already set to
+	 * the reserved value, so no need to reset any context.
+	 */
+	if (mm == &init_mm)
+		return;
+
 	smp_rmb();
 	asid = cpu_last_asid + cpu;
 
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/arm64/mm/hugetlbpage.c linux-libre-4.1.6-gnu/arch/arm64/mm/hugetlbpage.c
--- linux-libre-4.1-gnu/arch/arm64/mm/hugetlbpage.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/arm64/mm/hugetlbpage.c	2015-08-16 23:52:51.000000000 -0400
@@ -40,13 +40,13 @@ int huge_pmd_unshare(struct mm_struct *m
 
 int pmd_huge(pmd_t pmd)
 {
-	return !(pmd_val(pmd) & PMD_TABLE_BIT);
+	return pmd_val(pmd) && !(pmd_val(pmd) & PMD_TABLE_BIT);
 }
 
 int pud_huge(pud_t pud)
 {
 #ifndef __PAGETABLE_PMD_FOLDED
-	return !(pud_val(pud) & PUD_TABLE_BIT);
+	return pud_val(pud) && !(pud_val(pud) & PUD_TABLE_BIT);
 #else
 	return 0;
 #endif
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/arm64/mm/init.c linux-libre-4.1.6-gnu/arch/arm64/mm/init.c
--- linux-libre-4.1-gnu/arch/arm64/mm/init.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/arm64/mm/init.c	2015-08-16 23:52:51.000000000 -0400
@@ -262,7 +262,7 @@ static void __init free_unused_memmap(vo
 		 * memmap entries are valid from the bank end aligned to
 		 * MAX_ORDER_NR_PAGES.
 		 */
-		prev_end = ALIGN(start + __phys_to_pfn(reg->size),
+		prev_end = ALIGN(__phys_to_pfn(reg->base + reg->size),
 				 MAX_ORDER_NR_PAGES);
 	}
 
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/arm64/net/bpf_jit_comp.c linux-libre-4.1.6-gnu/arch/arm64/net/bpf_jit_comp.c
--- linux-libre-4.1-gnu/arch/arm64/net/bpf_jit_comp.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/arm64/net/bpf_jit_comp.c	2015-08-16 23:52:51.000000000 -0400
@@ -113,9 +113,9 @@ static inline void emit_a64_mov_i(const
 static inline int bpf2a64_offset(int bpf_to, int bpf_from,
 				 const struct jit_ctx *ctx)
 {
-	int to = ctx->offset[bpf_to + 1];
+	int to = ctx->offset[bpf_to];
 	/* -1 to account for the Branch instruction */
-	int from = ctx->offset[bpf_from + 1] - 1;
+	int from = ctx->offset[bpf_from] - 1;
 
 	return to - from;
 }
@@ -289,23 +289,41 @@ static int build_insn(const struct bpf_i
 	case BPF_ALU | BPF_END | BPF_FROM_BE:
 #ifdef CONFIG_CPU_BIG_ENDIAN
 		if (BPF_SRC(code) == BPF_FROM_BE)
-			break;
+			goto emit_bswap_uxt;
 #else /* !CONFIG_CPU_BIG_ENDIAN */
 		if (BPF_SRC(code) == BPF_FROM_LE)
-			break;
+			goto emit_bswap_uxt;
 #endif
 		switch (imm) {
 		case 16:
 			emit(A64_REV16(is64, dst, dst), ctx);
+			/* zero-extend 16 bits into 64 bits */
+			emit(A64_UXTH(is64, dst, dst), ctx);
 			break;
 		case 32:
 			emit(A64_REV32(is64, dst, dst), ctx);
+			/* upper 32 bits already cleared */
 			break;
 		case 64:
 			emit(A64_REV64(dst, dst), ctx);
 			break;
 		}
 		break;
+emit_bswap_uxt:
+		switch (imm) {
+		case 16:
+			/* zero-extend 16 bits into 64 bits */
+			emit(A64_UXTH(is64, dst, dst), ctx);
+			break;
+		case 32:
+			/* zero-extend 32 bits into 64 bits */
+			emit(A64_UXTW(is64, dst, dst), ctx);
+			break;
+		case 64:
+			/* nop */
+			break;
+		}
+		break;
 	/* dst = imm */
 	case BPF_ALU | BPF_MOV | BPF_K:
 	case BPF_ALU64 | BPF_MOV | BPF_K:
@@ -640,10 +658,11 @@ static int build_body(struct jit_ctx *ct
 		const struct bpf_insn *insn = &prog->insnsi[i];
 		int ret;
 
+		ret = build_insn(insn, ctx);
+
 		if (ctx->image == NULL)
 			ctx->offset[i] = ctx->idx;
 
-		ret = build_insn(insn, ctx);
 		if (ret > 0) {
 			i++;
 			continue;
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/arm64/net/bpf_jit.h linux-libre-4.1.6-gnu/arch/arm64/net/bpf_jit.h
--- linux-libre-4.1-gnu/arch/arm64/net/bpf_jit.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/arm64/net/bpf_jit.h	2015-08-16 23:52:51.000000000 -0400
@@ -110,6 +110,10 @@
 /* Rd = Rn >> shift; signed */
 #define A64_ASR(sf, Rd, Rn, shift) A64_SBFM(sf, Rd, Rn, shift, (sf) ? 63 : 31)
 
+/* Zero extend */
+#define A64_UXTH(sf, Rd, Rn) A64_UBFM(sf, Rd, Rn, 0, 15)
+#define A64_UXTW(sf, Rd, Rn) A64_UBFM(sf, Rd, Rn, 0, 31)
+
 /* Move wide (immediate) */
 #define A64_MOVEW(sf, Rd, imm16, shift, type) \
 	aarch64_insn_gen_movewide(Rd, imm16, shift, \
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/avr32/mach-at32ap/clock.c linux-libre-4.1.6-gnu/arch/avr32/mach-at32ap/clock.c
--- linux-libre-4.1-gnu/arch/avr32/mach-at32ap/clock.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/avr32/mach-at32ap/clock.c	2015-08-16 23:52:51.000000000 -0400
@@ -80,6 +80,9 @@ int clk_enable(struct clk *clk)
 {
 	unsigned long flags;
 
+	if (!clk)
+		return 0;
+
 	spin_lock_irqsave(&clk_lock, flags);
 	__clk_enable(clk);
 	spin_unlock_irqrestore(&clk_lock, flags);
@@ -106,6 +109,9 @@ void clk_disable(struct clk *clk)
 {
 	unsigned long flags;
 
+	if (IS_ERR_OR_NULL(clk))
+		return;
+
 	spin_lock_irqsave(&clk_lock, flags);
 	__clk_disable(clk);
 	spin_unlock_irqrestore(&clk_lock, flags);
@@ -117,6 +123,9 @@ unsigned long clk_get_rate(struct clk *c
 	unsigned long flags;
 	unsigned long rate;
 
+	if (!clk)
+		return 0;
+
 	spin_lock_irqsave(&clk_lock, flags);
 	rate = clk->get_rate(clk);
 	spin_unlock_irqrestore(&clk_lock, flags);
@@ -129,6 +138,9 @@ long clk_round_rate(struct clk *clk, uns
 {
 	unsigned long flags, actual_rate;
 
+	if (!clk)
+		return 0;
+
 	if (!clk->set_rate)
 		return -ENOSYS;
 
@@ -145,6 +157,9 @@ int clk_set_rate(struct clk *clk, unsign
 	unsigned long flags;
 	long ret;
 
+	if (!clk)
+		return 0;
+
 	if (!clk->set_rate)
 		return -ENOSYS;
 
@@ -161,6 +176,9 @@ int clk_set_parent(struct clk *clk, stru
 	unsigned long flags;
 	int ret;
 
+	if (!clk)
+		return 0;
+
 	if (!clk->set_parent)
 		return -ENOSYS;
 
@@ -174,7 +192,7 @@ EXPORT_SYMBOL(clk_set_parent);
 
 struct clk *clk_get_parent(struct clk *clk)
 {
-	return clk->parent;
+	return !clk ? NULL : clk->parent;
 }
 EXPORT_SYMBOL(clk_get_parent);
 
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/m68k/include/asm/coldfire.h linux-libre-4.1.6-gnu/arch/m68k/include/asm/coldfire.h
--- linux-libre-4.1-gnu/arch/m68k/include/asm/coldfire.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/m68k/include/asm/coldfire.h	2015-08-16 23:52:51.000000000 -0400
@@ -19,7 +19,7 @@
  *	in any case new boards come along from time to time that have yet
  *	another different clocking frequency.
  */
-#ifdef CONFIG_CLOCK_SET
+#ifdef CONFIG_CLOCK_FREQ
 #define	MCF_CLK		CONFIG_CLOCK_FREQ
 #else
 #error "Don't know what your ColdFire CPU clock frequency is??"
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/m68k/Kconfig.cpu linux-libre-4.1.6-gnu/arch/m68k/Kconfig.cpu
--- linux-libre-4.1-gnu/arch/m68k/Kconfig.cpu	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/m68k/Kconfig.cpu	2015-08-16 23:52:51.000000000 -0400
@@ -125,6 +125,13 @@ endif # M68KCLASSIC
 
 if COLDFIRE
 
+choice
+	prompt "ColdFire SoC type"
+	default M520x
+	help
+	  Select the type of ColdFire System-on-Chip (SoC) that you want
+	  to build for.
+
 config M5206
 	bool "MCF5206"
 	depends on !MMU
@@ -174,9 +181,6 @@ config M525x
 	help
 	  Freescale (Motorola) Coldfire 5251/5253 processor support.
 
-config M527x
-	bool
-
 config M5271
 	bool "MCF5271"
 	depends on !MMU
@@ -223,9 +227,6 @@ config M5307
 	help
 	  Motorola ColdFire 5307 processor support.
 
-config M53xx
-	bool
-
 config M532x
 	bool "MCF532x"
 	depends on !MMU
@@ -251,9 +252,6 @@ config M5407
 	help
 	  Motorola ColdFire 5407 processor support.
 
-config M54xx
-	bool
-
 config M547x
 	bool "MCF547x"
 	select M54xx
@@ -280,6 +278,17 @@ config M5441x
 	help
 	  Freescale Coldfire 54410/54415/54416/54417/54418 processor support.
 
+endchoice
+
+config M527x
+	bool
+
+config M53xx
+	bool
+
+config M54xx
+	bool
+
 endif # COLDFIRE
 
 
@@ -416,22 +425,10 @@ config HAVE_MBAR
 config HAVE_IPSBAR
 	bool
 
-config CLOCK_SET
-	bool "Enable setting the CPU clock frequency"
-	depends on COLDFIRE
-	default n
-	help
-	  On some CPU's you do not need to know what the core CPU clock
-	  frequency is. On these you can disable clock setting. On some
-	  traditional 68K parts, and on all ColdFire parts you need to set
-	  the appropriate CPU clock frequency. On these devices many of the
-	  onboard peripherals derive their timing from the master CPU clock
-	  frequency.
-
 config CLOCK_FREQ
 	int "Set the core clock frequency"
 	default "66666666"
-	depends on CLOCK_SET
+	depends on COLDFIRE
 	help
 	  Define the CPU clock frequency in use. This is the core clock
 	  frequency, it may or may not be the same as the external clock
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/mips/ath79/setup.c linux-libre-4.1.6-gnu/arch/mips/ath79/setup.c
--- linux-libre-4.1-gnu/arch/mips/ath79/setup.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/mips/ath79/setup.c	2015-08-16 23:52:51.000000000 -0400
@@ -186,6 +186,7 @@ int get_c0_perfcount_int(void)
 {
 	return ATH79_MISC_IRQ(5);
 }
+EXPORT_SYMBOL_GPL(get_c0_perfcount_int);
 
 unsigned int get_c0_compare_int(void)
 {
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/mips/include/asm/fpu.h linux-libre-4.1.6-gnu/arch/mips/include/asm/fpu.h
--- linux-libre-4.1-gnu/arch/mips/include/asm/fpu.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/mips/include/asm/fpu.h	2015-08-16 23:52:51.000000000 -0400
@@ -74,7 +74,7 @@ static inline int __enable_fpu(enum fpu_
 		goto fr_common;
 
 	case FPU_64BIT:
-#if !(defined(CONFIG_CPU_MIPS32_R2) || defined(CONFIG_CPU_MIPS32_R6) \
+#if !(defined(CONFIG_CPU_MIPSR2) || defined(CONFIG_CPU_MIPSR6) \
       || defined(CONFIG_64BIT))
 		/* we only have a 32-bit FPU */
 		return SIGFPE;
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/mips/include/asm/mach-bcm63xx/dma-coherence.h linux-libre-4.1.6-gnu/arch/mips/include/asm/mach-bcm63xx/dma-coherence.h
--- linux-libre-4.1-gnu/arch/mips/include/asm/mach-bcm63xx/dma-coherence.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/mips/include/asm/mach-bcm63xx/dma-coherence.h	1969-12-31 19:00:00.000000000 -0500
@@ -1,10 +0,0 @@
-#ifndef __ASM_MACH_BCM63XX_DMA_COHERENCE_H
-#define __ASM_MACH_BCM63XX_DMA_COHERENCE_H
-
-#include <asm/bmips.h>
-
-#define plat_post_dma_flush	bmips_post_dma_flush
-
-#include <asm/mach-generic/dma-coherence.h>
-
-#endif /* __ASM_MACH_BCM63XX_DMA_COHERENCE_H */
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/mips/include/asm/mach-generic/spaces.h linux-libre-4.1.6-gnu/arch/mips/include/asm/mach-generic/spaces.h
--- linux-libre-4.1-gnu/arch/mips/include/asm/mach-generic/spaces.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/mips/include/asm/mach-generic/spaces.h	2015-08-16 23:52:51.000000000 -0400
@@ -94,7 +94,11 @@
 #endif
 
 #ifndef FIXADDR_TOP
+#ifdef CONFIG_KVM_GUEST
+#define FIXADDR_TOP		((unsigned long)(long)(int)0x7ffe0000)
+#else
 #define FIXADDR_TOP		((unsigned long)(long)(int)0xfffe0000)
 #endif
+#endif
 
 #endif /* __ASM_MACH_GENERIC_SPACES_H */
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/mips/include/asm/pgtable.h linux-libre-4.1.6-gnu/arch/mips/include/asm/pgtable.h
--- linux-libre-4.1-gnu/arch/mips/include/asm/pgtable.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/mips/include/asm/pgtable.h	2015-08-16 23:52:51.000000000 -0400
@@ -182,8 +182,39 @@ static inline void set_pte(pte_t *ptep,
 		 * Make sure the buddy is global too (if it's !none,
 		 * it better already be global)
 		 */
+#ifdef CONFIG_SMP
+		/*
+		 * For SMP, multiple CPUs can race, so we need to do
+		 * this atomically.
+		 */
+#ifdef CONFIG_64BIT
+#define LL_INSN "lld"
+#define SC_INSN "scd"
+#else /* CONFIG_32BIT */
+#define LL_INSN "ll"
+#define SC_INSN "sc"
+#endif
+		unsigned long page_global = _PAGE_GLOBAL;
+		unsigned long tmp;
+
+		__asm__ __volatile__ (
+			"	.set	push\n"
+			"	.set	noreorder\n"
+			"1:	" LL_INSN "	%[tmp], %[buddy]\n"
+			"	bnez	%[tmp], 2f\n"
+			"	 or	%[tmp], %[tmp], %[global]\n"
+			"	" SC_INSN "	%[tmp], %[buddy]\n"
+			"	beqz	%[tmp], 1b\n"
+			"	 nop\n"
+			"2:\n"
+			"	.set pop"
+			: [buddy] "+m" (buddy->pte),
+			  [tmp] "=&r" (tmp)
+			: [global] "r" (page_global));
+#else /* !CONFIG_SMP */
 		if (pte_none(*buddy))
 			pte_val(*buddy) = pte_val(*buddy) | _PAGE_GLOBAL;
+#endif /* CONFIG_SMP */
 	}
 #endif
 }
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/mips/include/asm/smp.h linux-libre-4.1.6-gnu/arch/mips/include/asm/smp.h
--- linux-libre-4.1-gnu/arch/mips/include/asm/smp.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/mips/include/asm/smp.h	2015-08-16 23:52:51.000000000 -0400
@@ -23,6 +23,7 @@
 extern int smp_num_siblings;
 extern cpumask_t cpu_sibling_map[];
 extern cpumask_t cpu_core_map[];
+extern cpumask_t cpu_foreign_map;
 
 #define raw_smp_processor_id() (current_thread_info()->cpu)
 
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/mips/include/asm/stackframe.h linux-libre-4.1.6-gnu/arch/mips/include/asm/stackframe.h
--- linux-libre-4.1-gnu/arch/mips/include/asm/stackframe.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/mips/include/asm/stackframe.h	2015-08-16 23:52:51.000000000 -0400
@@ -152,6 +152,31 @@
 		.set	noreorder
 		bltz	k0, 8f
 		 move	k1, sp
+#ifdef CONFIG_EVA
+		/*
+		 * Flush interAptiv's Return Prediction Stack (RPS) by writing
+		 * EntryHi. Toggling Config7.RPS is slower and less portable.
+		 *
+		 * The RPS isn't automatically flushed when exceptions are
+		 * taken, which can result in kernel mode speculative accesses
+		 * to user addresses if the RPS mispredicts. That's harmless
+		 * when user and kernel share the same address space, but with
+		 * EVA the same user segments may be unmapped to kernel mode,
+		 * even containing sensitive MMIO regions or invalid memory.
+		 *
+		 * This can happen when the kernel sets the return address to
+		 * ret_from_* and jr's to the exception handler, which looks
+		 * more like a tail call than a function call. If nested calls
+		 * don't evict the last user address in the RPS, it will
+		 * mispredict the return and fetch from a user controlled
+		 * address into the icache.
+		 *
+		 * More recent EVA-capable cores with MAAR to restrict
+		 * speculative accesses aren't affected.
+		 */
+		MFC0	k0, CP0_ENTRYHI
+		MTC0	k0, CP0_ENTRYHI
+#endif
 		.set	reorder
 		/* Called from user mode, new stack. */
 		get_saved_sp
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/mips/Kconfig linux-libre-4.1.6-gnu/arch/mips/Kconfig
--- linux-libre-4.1-gnu/arch/mips/Kconfig	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/mips/Kconfig	2015-08-16 23:52:51.000000000 -0400
@@ -1417,6 +1417,7 @@ config CPU_MIPS64_R6
 	select CPU_SUPPORTS_HIGHMEM
 	select CPU_SUPPORTS_MSA
 	select GENERIC_CSUM
+	select MIPS_O32_FP64_SUPPORT if 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
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/mips/kernel/mips-mt-fpaff.c linux-libre-4.1.6-gnu/arch/mips/kernel/mips-mt-fpaff.c
--- linux-libre-4.1-gnu/arch/mips/kernel/mips-mt-fpaff.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/mips/kernel/mips-mt-fpaff.c	2015-08-16 23:52:51.000000000 -0400
@@ -154,7 +154,7 @@ asmlinkage long mipsmt_sys_sched_getaffi
 				      unsigned long __user *user_mask_ptr)
 {
 	unsigned int real_len;
-	cpumask_t mask;
+	cpumask_t allowed, mask;
 	int retval;
 	struct task_struct *p;
 
@@ -173,7 +173,8 @@ asmlinkage long mipsmt_sys_sched_getaffi
 	if (retval)
 		goto out_unlock;
 
-	cpumask_and(&mask, &p->thread.user_cpus_allowed, cpu_possible_mask);
+	cpumask_or(&allowed, &p->thread.user_cpus_allowed, &p->cpus_allowed);
+	cpumask_and(&mask, &allowed, cpu_active_mask);
 
 out_unlock:
 	read_unlock(&tasklist_lock);
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/mips/kernel/relocate_kernel.S linux-libre-4.1.6-gnu/arch/mips/kernel/relocate_kernel.S
--- linux-libre-4.1-gnu/arch/mips/kernel/relocate_kernel.S	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/mips/kernel/relocate_kernel.S	2015-08-16 23:52:51.000000000 -0400
@@ -24,7 +24,7 @@ LEAF(relocate_new_kernel)
 
 process_entry:
 	PTR_L		s2, (s0)
-	PTR_ADD		s0, s0, SZREG
+	PTR_ADDIU	s0, s0, SZREG
 
 	/*
 	 * In case of a kdump/crash kernel, the indirection page is not
@@ -61,9 +61,9 @@ copy_word:
 	/* copy page word by word */
 	REG_L		s5, (s2)
 	REG_S		s5, (s4)
-	PTR_ADD		s4, s4, SZREG
-	PTR_ADD		s2, s2, SZREG
-	LONG_SUB	s6, s6, 1
+	PTR_ADDIU	s4, s4, SZREG
+	PTR_ADDIU	s2, s2, SZREG
+	LONG_ADDIU	s6, s6, -1
 	beq		s6, zero, process_entry
 	b		copy_word
 	b		process_entry
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/mips/kernel/signal32.c linux-libre-4.1.6-gnu/arch/mips/kernel/signal32.c
--- linux-libre-4.1-gnu/arch/mips/kernel/signal32.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/mips/kernel/signal32.c	2015-08-16 23:52:51.000000000 -0400
@@ -409,8 +409,6 @@ int copy_siginfo_to_user32(compat_siginf
 
 int copy_siginfo_from_user32(siginfo_t *to, compat_siginfo_t __user *from)
 {
-	memset(to, 0, sizeof *to);
-
 	if (copy_from_user(to, from, 3*sizeof(int)) ||
 	    copy_from_user(to->_sifields._pad,
 			   from->_sifields._pad, SI_PAD_SIZE32))
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/mips/kernel/smp.c linux-libre-4.1.6-gnu/arch/mips/kernel/smp.c
--- linux-libre-4.1-gnu/arch/mips/kernel/smp.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/mips/kernel/smp.c	2015-08-16 23:52:51.000000000 -0400
@@ -63,6 +63,13 @@ EXPORT_SYMBOL(cpu_sibling_map);
 cpumask_t cpu_core_map[NR_CPUS] __read_mostly;
 EXPORT_SYMBOL(cpu_core_map);
 
+/*
+ * A logcal cpu mask containing only one VPE per core to
+ * reduce the number of IPIs on large MT systems.
+ */
+cpumask_t cpu_foreign_map __read_mostly;
+EXPORT_SYMBOL(cpu_foreign_map);
+
 /* representing cpus for which sibling maps can be computed */
 static cpumask_t cpu_sibling_setup_map;
 
@@ -103,6 +110,29 @@ static inline void set_cpu_core_map(int
 	}
 }
 
+/*
+ * Calculate a new cpu_foreign_map mask whenever a
+ * new cpu appears or disappears.
+ */
+static inline void calculate_cpu_foreign_map(void)
+{
+	int i, k, core_present;
+	cpumask_t temp_foreign_map;
+
+	/* Re-calculate the mask */
+	for_each_online_cpu(i) {
+		core_present = 0;
+		for_each_cpu(k, &temp_foreign_map)
+			if (cpu_data[i].package == cpu_data[k].package &&
+			    cpu_data[i].core == cpu_data[k].core)
+				core_present = 1;
+		if (!core_present)
+			cpumask_set_cpu(i, &temp_foreign_map);
+	}
+
+	cpumask_copy(&cpu_foreign_map, &temp_foreign_map);
+}
+
 struct plat_smp_ops *mp_ops;
 EXPORT_SYMBOL(mp_ops);
 
@@ -146,6 +176,8 @@ asmlinkage void start_secondary(void)
 	set_cpu_sibling_map(cpu);
 	set_cpu_core_map(cpu);
 
+	calculate_cpu_foreign_map();
+
 	cpumask_set_cpu(cpu, &cpu_callin_map);
 
 	synchronise_count_slave(cpu);
@@ -173,9 +205,18 @@ void __irq_entry smp_call_function_inter
 static void stop_this_cpu(void *dummy)
 {
 	/*
-	 * Remove this CPU:
+	 * Remove this CPU. Be a bit slow here and
+	 * set the bits for every online CPU so we don't miss
+	 * any IPI whilst taking this VPE down.
 	 */
+
+	cpumask_copy(&cpu_foreign_map, cpu_online_mask);
+
+	/* Make it visible to every other CPU */
+	smp_mb();
+
 	set_cpu_online(smp_processor_id(), false);
+	calculate_cpu_foreign_map();
 	local_irq_disable();
 	while (1);
 }
@@ -197,6 +238,7 @@ void __init smp_prepare_cpus(unsigned in
 	mp_ops->prepare_cpus(max_cpus);
 	set_cpu_sibling_map(0);
 	set_cpu_core_map(0);
+	calculate_cpu_foreign_map();
 #ifndef CONFIG_HOTPLUG_CPU
 	init_cpu_present(cpu_possible_mask);
 #endif
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/mips/kernel/traps.c linux-libre-4.1.6-gnu/arch/mips/kernel/traps.c
--- linux-libre-4.1-gnu/arch/mips/kernel/traps.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/mips/kernel/traps.c	2015-08-16 23:52:51.000000000 -0400
@@ -192,6 +192,7 @@ static void show_stacktrace(struct task_
 void show_stack(struct task_struct *task, unsigned long *sp)
 {
 	struct pt_regs regs;
+	mm_segment_t old_fs = get_fs();
 	if (sp) {
 		regs.regs[29] = (unsigned long)sp;
 		regs.regs[31] = 0;
@@ -210,7 +211,13 @@ void show_stack(struct task_struct *task
 			prepare_frametrace(&regs);
 		}
 	}
+	/*
+	 * show_stack() deals exclusively with kernel mode, so be sure to access
+	 * the stack in the kernel (not user) address space.
+	 */
+	set_fs(KERNEL_DS);
 	show_stacktrace(task, &regs);
+	set_fs(old_fs);
 }
 
 static void show_code(unsigned int __user *pc)
@@ -1518,6 +1525,7 @@ asmlinkage void do_mcheck(struct pt_regs
 	const int field = 2 * sizeof(unsigned long);
 	int multi_match = regs->cp0_status & ST0_TS;
 	enum ctx_state prev_state;
+	mm_segment_t old_fs = get_fs();
 
 	prev_state = exception_enter();
 	show_regs(regs);
@@ -1539,8 +1547,13 @@ asmlinkage void do_mcheck(struct pt_regs
 		dump_tlb_all();
 	}
 
+	if (!user_mode(regs))
+		set_fs(KERNEL_DS);
+
 	show_code((unsigned int __user *) regs->cp0_epc);
 
+	set_fs(old_fs);
+
 	/*
 	 * Some chips may have other causes of machine check (e.g. SB1
 	 * graduation timer)
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/mips/kernel/unaligned.c linux-libre-4.1.6-gnu/arch/mips/kernel/unaligned.c
--- linux-libre-4.1-gnu/arch/mips/kernel/unaligned.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/mips/kernel/unaligned.c	2015-08-16 23:52:51.000000000 -0400
@@ -438,7 +438,7 @@ do {
 		: "memory");                                \
 } while(0)
 
-#define     StoreDW(addr, value, res) \
+#define     _StoreDW(addr, value, res) \
 do {                                                        \
 		__asm__ __volatile__ (                      \
 			".set\tpush\n\t"		    \
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/mips/kvm/mips.c linux-libre-4.1.6-gnu/arch/mips/kvm/mips.c
--- linux-libre-4.1-gnu/arch/mips/kvm/mips.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/mips/kvm/mips.c	2015-08-16 23:52:51.000000000 -0400
@@ -982,7 +982,7 @@ int kvm_vm_ioctl_get_dirty_log(struct kv
 
 	/* If nothing is dirty, don't bother messing with page tables. */
 	if (is_dirty) {
-		memslot = &kvm->memslots->memslots[log->slot];
+		memslot = id_to_memslot(kvm->memslots, log->slot);
 
 		ga = memslot->base_gfn << PAGE_SHIFT;
 		ga_end = ga + (memslot->npages << PAGE_SHIFT);
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/mips/lantiq/irq.c linux-libre-4.1.6-gnu/arch/mips/lantiq/irq.c
--- linux-libre-4.1-gnu/arch/mips/lantiq/irq.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/mips/lantiq/irq.c	2015-08-16 23:52:51.000000000 -0400
@@ -466,6 +466,7 @@ int get_c0_perfcount_int(void)
 {
 	return ltq_perfcount_irq;
 }
+EXPORT_SYMBOL_GPL(get_c0_perfcount_int);
 
 unsigned int get_c0_compare_int(void)
 {
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/mips/math-emu/cp1emu.c linux-libre-4.1.6-gnu/arch/mips/math-emu/cp1emu.c
--- linux-libre-4.1-gnu/arch/mips/math-emu/cp1emu.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/mips/math-emu/cp1emu.c	2015-08-16 23:52:51.000000000 -0400
@@ -451,7 +451,7 @@ static int isBranchInstr(struct pt_regs
 			/* Fall through */
 		case jr_op:
 			/* For R6, JR already emulated in jalr_op */
-			if (NO_R6EMU && insn.r_format.opcode == jr_op)
+			if (NO_R6EMU && insn.r_format.func == jr_op)
 				break;
 			*contpc = regs->regs[insn.r_format.rs];
 			return 1;
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/mips/mm/c-r4k.c linux-libre-4.1.6-gnu/arch/mips/mm/c-r4k.c
--- linux-libre-4.1-gnu/arch/mips/mm/c-r4k.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/mips/mm/c-r4k.c	2015-08-16 23:52:51.000000000 -0400
@@ -37,6 +37,7 @@
 #include <asm/cacheflush.h> /* for run_uncached() */
 #include <asm/traps.h>
 #include <asm/dma-coherence.h>
+#include <asm/mips-cm.h>
 
 /*
  * Special Variant of smp_call_function for use by cache functions:
@@ -51,9 +52,16 @@ static inline void r4k_on_each_cpu(void
 {
 	preempt_disable();
 
-#ifndef CONFIG_MIPS_MT_SMP
-	smp_call_function(func, info, 1);
-#endif
+	/*
+	 * The Coherent Manager propagates address-based cache ops to other
+	 * cores but not index-based ops. However, r4k_on_each_cpu is used
+	 * in both cases so there is no easy way to tell what kind of op is
+	 * executed to the other cores. The best we can probably do is
+	 * to restrict that call when a CM is not present because both
+	 * CM-based SMP protocols (CMP & CPS) restrict index-based cache ops.
+	 */
+	if (!mips_cm_present())
+		smp_call_function_many(&cpu_foreign_map, func, info, 1);
 	func(info);
 	preempt_enable();
 }
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/mips/mti-malta/malta-time.c linux-libre-4.1.6-gnu/arch/mips/mti-malta/malta-time.c
--- linux-libre-4.1-gnu/arch/mips/mti-malta/malta-time.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/mips/mti-malta/malta-time.c	2015-08-16 23:52:51.000000000 -0400
@@ -148,6 +148,7 @@ int get_c0_perfcount_int(void)
 
 	return mips_cpu_perf_irq;
 }
+EXPORT_SYMBOL_GPL(get_c0_perfcount_int);
 
 unsigned int get_c0_compare_int(void)
 {
@@ -165,14 +166,17 @@ unsigned int get_c0_compare_int(void)
 
 static void __init init_rtc(void)
 {
-	/* stop the clock whilst setting it up */
-	CMOS_WRITE(RTC_SET | RTC_24H, RTC_CONTROL);
+	unsigned char freq, ctrl;
 
-	/* 32KHz time base */
-	CMOS_WRITE(RTC_REF_CLCK_32KHZ, RTC_FREQ_SELECT);
+	/* Set 32KHz time base if not already set */
+	freq = CMOS_READ(RTC_FREQ_SELECT);
+	if ((freq & RTC_DIV_CTL) != RTC_REF_CLCK_32KHZ)
+		CMOS_WRITE(RTC_REF_CLCK_32KHZ, RTC_FREQ_SELECT);
 
-	/* start the clock */
-	CMOS_WRITE(RTC_24H, RTC_CONTROL);
+	/* Ensure SET bit is clear so RTC can run */
+	ctrl = CMOS_READ(RTC_CONTROL);
+	if (ctrl & RTC_SET)
+		CMOS_WRITE(ctrl & ~RTC_SET, RTC_CONTROL);
 }
 
 void __init plat_time_init(void)
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/mips/mti-sead3/sead3-time.c linux-libre-4.1.6-gnu/arch/mips/mti-sead3/sead3-time.c
--- linux-libre-4.1-gnu/arch/mips/mti-sead3/sead3-time.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/mips/mti-sead3/sead3-time.c	2015-08-16 23:52:51.000000000 -0400
@@ -77,6 +77,7 @@ int get_c0_perfcount_int(void)
 		return MIPS_CPU_IRQ_BASE + cp0_perfcount_irq;
 	return -1;
 }
+EXPORT_SYMBOL_GPL(get_c0_perfcount_int);
 
 unsigned int get_c0_compare_int(void)
 {
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/mips/pistachio/time.c linux-libre-4.1.6-gnu/arch/mips/pistachio/time.c
--- linux-libre-4.1-gnu/arch/mips/pistachio/time.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/mips/pistachio/time.c	2015-08-16 23:52:51.000000000 -0400
@@ -26,6 +26,7 @@ int get_c0_perfcount_int(void)
 {
 	return gic_get_c0_perfcount_int();
 }
+EXPORT_SYMBOL_GPL(get_c0_perfcount_int);
 
 void __init plat_time_init(void)
 {
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/mips/ralink/irq.c linux-libre-4.1.6-gnu/arch/mips/ralink/irq.c
--- linux-libre-4.1-gnu/arch/mips/ralink/irq.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/mips/ralink/irq.c	2015-08-16 23:52:51.000000000 -0400
@@ -89,6 +89,7 @@ int get_c0_perfcount_int(void)
 {
 	return rt_perfcount_irq;
 }
+EXPORT_SYMBOL_GPL(get_c0_perfcount_int);
 
 unsigned int get_c0_compare_int(void)
 {
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/openrisc/Kconfig linux-libre-4.1.6-gnu/arch/openrisc/Kconfig
--- linux-libre-4.1-gnu/arch/openrisc/Kconfig	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/openrisc/Kconfig	2015-08-16 23:52:51.000000000 -0400
@@ -17,6 +17,7 @@ config OPENRISC
 	select GENERIC_IRQ_SHOW
 	select GENERIC_IOMAP
 	select GENERIC_CPU_DEVICES
+	select HAVE_UID16
 	select GENERIC_ATOMIC64
 	select GENERIC_CLOCKEVENTS
 	select GENERIC_STRNCPY_FROM_USER
@@ -31,9 +32,6 @@ config MMU
 config HAVE_DMA_ATTRS
 	def_bool y
 
-config UID16
-	def_bool y
-
 config RWSEM_GENERIC_SPINLOCK
 	def_bool y
 
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/parisc/include/asm/pgalloc.h linux-libre-4.1.6-gnu/arch/parisc/include/asm/pgalloc.h
--- linux-libre-4.1-gnu/arch/parisc/include/asm/pgalloc.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/parisc/include/asm/pgalloc.h	2015-08-16 23:52:51.000000000 -0400
@@ -72,7 +72,7 @@ static inline pmd_t *pmd_alloc_one(struc
 
 static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
 {
-	if(pmd_flag(*pmd) & PxD_FLAG_ATTACHED)
+	if (pmd_flag(*pmd) & PxD_FLAG_ATTACHED) {
 		/*
 		 * This is the permanent pmd attached to the pgd;
 		 * cannot free it.
@@ -81,6 +81,7 @@ static inline void pmd_free(struct mm_st
 		 */
 		mm_inc_nr_pmds(mm);
 		return;
+	}
 	free_pages((unsigned long)pmd, PMD_ORDER);
 }
 
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/parisc/include/asm/pgtable.h linux-libre-4.1.6-gnu/arch/parisc/include/asm/pgtable.h
--- linux-libre-4.1-gnu/arch/parisc/include/asm/pgtable.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/parisc/include/asm/pgtable.h	2015-08-16 23:52:51.000000000 -0400
@@ -16,7 +16,7 @@
 #include <asm/processor.h>
 #include <asm/cache.h>
 
-extern spinlock_t pa_dbit_lock;
+extern spinlock_t pa_tlb_lock;
 
 /*
  * kern_addr_valid(ADDR) tests if ADDR is pointing to valid kernel
@@ -33,6 +33,19 @@ extern spinlock_t pa_dbit_lock;
  */
 #define kern_addr_valid(addr)	(1)
 
+/* Purge data and instruction TLB entries.  Must be called holding
+ * the pa_tlb_lock.  The TLB purge instructions are slow on SMP
+ * machines since the purge must be broadcast to all CPUs.
+ */
+
+static inline void purge_tlb_entries(struct mm_struct *mm, unsigned long addr)
+{
+	mtsp(mm->context, 1);
+	pdtlb(addr);
+	if (unlikely(split_tlb))
+		pitlb(addr);
+}
+
 /* Certain architectures need to do special things when PTEs
  * within a page table are directly modified.  Thus, the following
  * hook is made available.
@@ -42,15 +55,20 @@ extern spinlock_t pa_dbit_lock;
                 *(pteptr) = (pteval);                           \
         } while(0)
 
-extern void purge_tlb_entries(struct mm_struct *, unsigned long);
+#define pte_inserted(x)						\
+	((pte_val(x) & (_PAGE_PRESENT|_PAGE_ACCESSED))		\
+	 == (_PAGE_PRESENT|_PAGE_ACCESSED))
 
-#define set_pte_at(mm, addr, ptep, pteval)                      \
-	do {                                                    \
+#define set_pte_at(mm, addr, ptep, pteval)			\
+	do {							\
+		pte_t old_pte;					\
 		unsigned long flags;				\
-		spin_lock_irqsave(&pa_dbit_lock, flags);	\
-		set_pte(ptep, pteval);                          \
-		purge_tlb_entries(mm, addr);                    \
-		spin_unlock_irqrestore(&pa_dbit_lock, 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);		\
+		spin_unlock_irqrestore(&pa_tlb_lock, flags);	\
 	} while (0)
 
 #endif /* !__ASSEMBLY__ */
@@ -268,7 +286,7 @@ extern unsigned long *empty_zero_page;
 
 #define pte_none(x)     (pte_val(x) == 0)
 #define pte_present(x)	(pte_val(x) & _PAGE_PRESENT)
-#define pte_clear(mm,addr,xp)	do { pte_val(*(xp)) = 0; } while (0)
+#define pte_clear(mm, addr, xp)  set_pte_at(mm, addr, xp, __pte(0))
 
 #define pmd_flag(x)	(pmd_val(x) & PxD_FLAG_MASK)
 #define pmd_address(x)	((unsigned long)(pmd_val(x) &~ PxD_FLAG_MASK) << PxD_VALUE_SHIFT)
@@ -435,15 +453,15 @@ static inline int ptep_test_and_clear_yo
 	if (!pte_young(*ptep))
 		return 0;
 
-	spin_lock_irqsave(&pa_dbit_lock, flags);
+	spin_lock_irqsave(&pa_tlb_lock, flags);
 	pte = *ptep;
 	if (!pte_young(pte)) {
-		spin_unlock_irqrestore(&pa_dbit_lock, flags);
+		spin_unlock_irqrestore(&pa_tlb_lock, flags);
 		return 0;
 	}
 	set_pte(ptep, pte_mkold(pte));
 	purge_tlb_entries(vma->vm_mm, addr);
-	spin_unlock_irqrestore(&pa_dbit_lock, flags);
+	spin_unlock_irqrestore(&pa_tlb_lock, flags);
 	return 1;
 }
 
@@ -453,11 +471,12 @@ static inline pte_t ptep_get_and_clear(s
 	pte_t old_pte;
 	unsigned long flags;
 
-	spin_lock_irqsave(&pa_dbit_lock, flags);
+	spin_lock_irqsave(&pa_tlb_lock, flags);
 	old_pte = *ptep;
-	pte_clear(mm,addr,ptep);
-	purge_tlb_entries(mm, addr);
-	spin_unlock_irqrestore(&pa_dbit_lock, flags);
+	set_pte(ptep, __pte(0));
+	if (pte_inserted(old_pte))
+		purge_tlb_entries(mm, addr);
+	spin_unlock_irqrestore(&pa_tlb_lock, flags);
 
 	return old_pte;
 }
@@ -465,10 +484,10 @@ static inline pte_t ptep_get_and_clear(s
 static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
 {
 	unsigned long flags;
-	spin_lock_irqsave(&pa_dbit_lock, flags);
+	spin_lock_irqsave(&pa_tlb_lock, flags);
 	set_pte(ptep, pte_wrprotect(*ptep));
 	purge_tlb_entries(mm, addr);
-	spin_unlock_irqrestore(&pa_dbit_lock, flags);
+	spin_unlock_irqrestore(&pa_tlb_lock, flags);
 }
 
 #define pte_same(A,B)	(pte_val(A) == pte_val(B))
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/parisc/include/asm/tlbflush.h linux-libre-4.1.6-gnu/arch/parisc/include/asm/tlbflush.h
--- linux-libre-4.1-gnu/arch/parisc/include/asm/tlbflush.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/parisc/include/asm/tlbflush.h	2015-08-16 23:52:51.000000000 -0400
@@ -13,6 +13,9 @@
  * active at any one time on the Merced bus.  This tlb purge
  * synchronisation is fairly lightweight and harmless so we activate
  * it on all systems not just the N class.
+
+ * It is also used to ensure PTE updates are atomic and consistent
+ * with the TLB.
  */
 extern spinlock_t pa_tlb_lock;
 
@@ -24,20 +27,24 @@ extern void flush_tlb_all_local(void *);
 
 #define smp_flush_tlb_all()	flush_tlb_all()
 
+int __flush_tlb_range(unsigned long sid,
+	unsigned long start, unsigned long end);
+
+#define flush_tlb_range(vma, start, end) \
+	__flush_tlb_range((vma)->vm_mm->context, start, end)
+
+#define flush_tlb_kernel_range(start, end) \
+	__flush_tlb_range(0, start, end)
+
 /*
  * flush_tlb_mm()
  *
- * XXX This code is NOT valid for HP-UX compatibility processes,
- * (although it will probably work 99% of the time). HP-UX
- * processes are free to play with the space id's and save them
- * over long periods of time, etc. so we have to preserve the
- * space and just flush the entire tlb. We need to check the
- * personality in order to do that, but the personality is not
- * currently being set correctly.
- *
- * Of course, Linux processes could do the same thing, but
- * we don't support that (and the compilers, dynamic linker,
- * etc. do not do that).
+ * The code to switch to a new context is NOT valid for processes
+ * which play with the space id's.  Thus, we have to preserve the
+ * space and just flush the entire tlb.  However, the compilers,
+ * dynamic linker, etc, do not manipulate space id's, so there
+ * could be a significant performance benefit in switching contexts
+ * and not flushing the whole tlb.
  */
 
 static inline void flush_tlb_mm(struct mm_struct *mm)
@@ -45,10 +52,18 @@ static inline void flush_tlb_mm(struct m
 	BUG_ON(mm == &init_mm); /* Should never happen */
 
 #if 1 || defined(CONFIG_SMP)
+	/* Except for very small threads, flushing the whole TLB is
+	 * faster than using __flush_tlb_range.  The pdtlb and pitlb
+	 * instructions are very slow because of the TLB broadcast.
+	 * It might be faster to do local range flushes on all CPUs
+	 * on PA 2.0 systems.
+	 */
 	flush_tlb_all();
 #else
 	/* FIXME: currently broken, causing space id and protection ids
-	 *  to go out of sync, resulting in faults on userspace accesses.
+	 * to go out of sync, resulting in faults on userspace accesses.
+	 * This approach needs further investigation since running many
+	 * small applications (e.g., GCC testsuite) is faster on HP-UX.
 	 */
 	if (mm) {
 		if (mm->context != 0)
@@ -65,22 +80,12 @@ static inline void flush_tlb_page(struct
 {
 	unsigned long flags, sid;
 
-	/* For one page, it's not worth testing the split_tlb variable */
-
-	mb();
 	sid = vma->vm_mm->context;
 	purge_tlb_start(flags);
 	mtsp(sid, 1);
 	pdtlb(addr);
-	pitlb(addr);
+	if (unlikely(split_tlb))
+		pitlb(addr);
 	purge_tlb_end(flags);
 }
-
-void __flush_tlb_range(unsigned long sid,
-	unsigned long start, unsigned long end);
-
-#define flush_tlb_range(vma,start,end) __flush_tlb_range((vma)->vm_mm->context,start,end)
-
-#define flush_tlb_kernel_range(start, end) __flush_tlb_range(0,start,end)
-
 #endif
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/parisc/kernel/cache.c linux-libre-4.1.6-gnu/arch/parisc/kernel/cache.c
--- linux-libre-4.1-gnu/arch/parisc/kernel/cache.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/parisc/kernel/cache.c	2015-08-16 23:52:51.000000000 -0400
@@ -342,12 +342,15 @@ EXPORT_SYMBOL(flush_data_cache_local);
 EXPORT_SYMBOL(flush_kernel_icache_range_asm);
 
 #define FLUSH_THRESHOLD 0x80000 /* 0.5MB */
-int parisc_cache_flush_threshold __read_mostly = FLUSH_THRESHOLD;
+static unsigned long parisc_cache_flush_threshold __read_mostly = FLUSH_THRESHOLD;
+
+#define FLUSH_TLB_THRESHOLD (2*1024*1024) /* 2MB initial TLB threshold */
+static unsigned long parisc_tlb_flush_threshold __read_mostly = FLUSH_TLB_THRESHOLD;
 
 void __init parisc_setup_cache_timing(void)
 {
 	unsigned long rangetime, alltime;
-	unsigned long size;
+	unsigned long size, start;
 
 	alltime = mfctl(16);
 	flush_data_cache();
@@ -364,14 +367,43 @@ void __init parisc_setup_cache_timing(vo
 	/* Racy, but if we see an intermediate value, it's ok too... */
 	parisc_cache_flush_threshold = size * alltime / rangetime;
 
-	parisc_cache_flush_threshold = (parisc_cache_flush_threshold + L1_CACHE_BYTES - 1) &~ (L1_CACHE_BYTES - 1); 
+	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 %x (%d CPUs online)\n", parisc_cache_flush_threshold, num_online_cpus());
+	printk(KERN_INFO "Setting cache flush threshold to %lu kB\n",
+		parisc_cache_flush_threshold/1024);
+
+	/* calculate TLB flush threshold */
+
+	alltime = mfctl(16);
+	flush_tlb_all();
+	alltime = mfctl(16) - alltime;
+
+	size = PAGE_SIZE;
+	start = (unsigned long) _text;
+	rangetime = mfctl(16);
+	while (start < (unsigned long) _end) {
+		flush_tlb_kernel_range(start, start + PAGE_SIZE);
+		start += PAGE_SIZE;
+		size += PAGE_SIZE;
+	}
+	rangetime = mfctl(16) - rangetime;
+
+	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;
+
+	printk(KERN_INFO "Setting TLB flush threshold to %lu kB\n",
+		parisc_tlb_flush_threshold/1024);
 }
 
 extern void purge_kernel_dcache_page_asm(unsigned long);
@@ -403,48 +435,45 @@ void copy_user_page(void *vto, void *vfr
 }
 EXPORT_SYMBOL(copy_user_page);
 
-void purge_tlb_entries(struct mm_struct *mm, unsigned long addr)
-{
-	unsigned long flags;
-
-	/* Note: purge_tlb_entries can be called at startup with
-	   no context.  */
-
-	purge_tlb_start(flags);
-	mtsp(mm->context, 1);
-	pdtlb(addr);
-	pitlb(addr);
-	purge_tlb_end(flags);
-}
-EXPORT_SYMBOL(purge_tlb_entries);
-
-void __flush_tlb_range(unsigned long sid, unsigned long start,
-		       unsigned long end)
+/* __flush_tlb_range()
+ *
+ * returns 1 if all TLBs were flushed.
+ */
+int __flush_tlb_range(unsigned long sid, unsigned long start,
+		      unsigned long end)
 {
-	unsigned long npages;
+	unsigned long flags, size;
 
-	npages = ((end - (start & PAGE_MASK)) + (PAGE_SIZE - 1)) >> PAGE_SHIFT;
-	if (npages >= 512)  /* 2MB of space: arbitrary, should be tuned */
+	size = (end - start);
+	if (size >= parisc_tlb_flush_threshold) {
 		flush_tlb_all();
-	else {
-		unsigned long flags;
+		return 1;
+	}
+
+	/* Purge TLB entries for small ranges using the pdtlb and
+	   pitlb instructions.  These instructions execute locally
+	   but cause a purge request to be broadcast to other TLBs.  */
+	if (likely(!split_tlb)) {
+		while (start < end) {
+			purge_tlb_start(flags);
+			mtsp(sid, 1);
+			pdtlb(start);
+			purge_tlb_end(flags);
+			start += PAGE_SIZE;
+		}
+		return 0;
+	}
 
+	/* split TLB case */
+	while (start < end) {
 		purge_tlb_start(flags);
 		mtsp(sid, 1);
-		if (split_tlb) {
-			while (npages--) {
-				pdtlb(start);
-				pitlb(start);
-				start += PAGE_SIZE;
-			}
-		} else {
-			while (npages--) {
-				pdtlb(start);
-				start += PAGE_SIZE;
-			}
-		}
+		pdtlb(start);
+		pitlb(start);
 		purge_tlb_end(flags);
+		start += PAGE_SIZE;
 	}
+	return 0;
 }
 
 static void cacheflush_h_tmp_function(void *dummy)
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/parisc/kernel/entry.S linux-libre-4.1.6-gnu/arch/parisc/kernel/entry.S
--- linux-libre-4.1-gnu/arch/parisc/kernel/entry.S	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/parisc/kernel/entry.S	2015-08-16 23:52:51.000000000 -0400
@@ -45,7 +45,7 @@
 	.level 2.0
 #endif
 
-	.import         pa_dbit_lock,data
+	.import		pa_tlb_lock,data
 
 	/* space_to_prot macro creates a prot id from a space id */
 
@@ -420,8 +420,8 @@
 	SHLREG		%r9,PxD_VALUE_SHIFT,\pmd
 	extru		\va,31-PAGE_SHIFT,ASM_BITS_PER_PTE,\index
 	dep		%r0,31,PAGE_SHIFT,\pmd  /* clear offset */
-	shladd		\index,BITS_PER_PTE_ENTRY,\pmd,\pmd
-	LDREG		%r0(\pmd),\pte		/* pmd is now pte */
+	shladd		\index,BITS_PER_PTE_ENTRY,\pmd,\pmd /* pmd is now pte */
+	LDREG		%r0(\pmd),\pte
 	bb,>=,n		\pte,_PAGE_PRESENT_BIT,\fault
 	.endm
 
@@ -453,57 +453,53 @@
 	L2_ptep		\pgd,\pte,\index,\va,\fault
 	.endm
 
-	/* Acquire pa_dbit_lock lock. */
-	.macro		dbit_lock	spc,tmp,tmp1
+	/* Acquire pa_tlb_lock lock and recheck page is still present. */
+	.macro		tlb_lock	spc,ptp,pte,tmp,tmp1,fault
 #ifdef CONFIG_SMP
 	cmpib,COND(=),n	0,\spc,2f
-	load32		PA(pa_dbit_lock),\tmp
+	load32		PA(pa_tlb_lock),\tmp
 1:	LDCW		0(\tmp),\tmp1
 	cmpib,COND(=)	0,\tmp1,1b
 	nop
+	LDREG		0(\ptp),\pte
+	bb,<,n		\pte,_PAGE_PRESENT_BIT,2f
+	b		\fault
+	stw		 \spc,0(\tmp)
 2:
 #endif
 	.endm
 
-	/* Release pa_dbit_lock lock without reloading lock address. */
-	.macro		dbit_unlock0	spc,tmp
+	/* Release pa_tlb_lock lock without reloading lock address. */
+	.macro		tlb_unlock0	spc,tmp
 #ifdef CONFIG_SMP
 	or,COND(=)	%r0,\spc,%r0
 	stw             \spc,0(\tmp)
 #endif
 	.endm
 
-	/* Release pa_dbit_lock lock. */
-	.macro		dbit_unlock1	spc,tmp
+	/* Release pa_tlb_lock lock. */
+	.macro		tlb_unlock1	spc,tmp
 #ifdef CONFIG_SMP
-	load32		PA(pa_dbit_lock),\tmp
-	dbit_unlock0	\spc,\tmp
+	load32		PA(pa_tlb_lock),\tmp
+	tlb_unlock0	\spc,\tmp
 #endif
 	.endm
 
 	/* Set the _PAGE_ACCESSED bit of the PTE.  Be clever and
 	 * don't needlessly dirty the cache line if it was already set */
-	.macro		update_ptep	spc,ptep,pte,tmp,tmp1
-#ifdef CONFIG_SMP
-	or,COND(=)	%r0,\spc,%r0
-	LDREG		0(\ptep),\pte
-#endif
+	.macro		update_accessed	ptp,pte,tmp,tmp1
 	ldi		_PAGE_ACCESSED,\tmp1
 	or		\tmp1,\pte,\tmp
 	and,COND(<>)	\tmp1,\pte,%r0
-	STREG		\tmp,0(\ptep)
+	STREG		\tmp,0(\ptp)
 	.endm
 
 	/* Set the dirty bit (and accessed bit).  No need to be
 	 * clever, this is only used from the dirty fault */
-	.macro		update_dirty	spc,ptep,pte,tmp
-#ifdef CONFIG_SMP
-	or,COND(=)	%r0,\spc,%r0
-	LDREG		0(\ptep),\pte
-#endif
+	.macro		update_dirty	ptp,pte,tmp
 	ldi		_PAGE_ACCESSED|_PAGE_DIRTY,\tmp
 	or		\tmp,\pte,\pte
-	STREG		\pte,0(\ptep)
+	STREG		\pte,0(\ptp)
 	.endm
 
 	/* bitshift difference between a PFN (based on kernel's PAGE_SIZE)
@@ -1148,14 +1144,14 @@ dtlb_miss_20w:
 
 	L3_ptep		ptp,pte,t0,va,dtlb_check_alias_20w
 
-	dbit_lock	spc,t0,t1
-	update_ptep	spc,ptp,pte,t0,t1
+	tlb_lock	spc,ptp,pte,t0,t1,dtlb_check_alias_20w
+	update_accessed	ptp,pte,t0,t1
 
 	make_insert_tlb	spc,pte,prot
 	
 	idtlbt          pte,prot
-	dbit_unlock1	spc,t0
 
+	tlb_unlock1	spc,t0
 	rfir
 	nop
 
@@ -1174,14 +1170,14 @@ nadtlb_miss_20w:
 
 	L3_ptep		ptp,pte,t0,va,nadtlb_check_alias_20w
 
-	dbit_lock	spc,t0,t1
-	update_ptep	spc,ptp,pte,t0,t1
+	tlb_lock	spc,ptp,pte,t0,t1,nadtlb_check_alias_20w
+	update_accessed	ptp,pte,t0,t1
 
 	make_insert_tlb	spc,pte,prot
 
 	idtlbt          pte,prot
-	dbit_unlock1	spc,t0
 
+	tlb_unlock1	spc,t0
 	rfir
 	nop
 
@@ -1202,20 +1198,20 @@ dtlb_miss_11:
 
 	L2_ptep		ptp,pte,t0,va,dtlb_check_alias_11
 
-	dbit_lock	spc,t0,t1
-	update_ptep	spc,ptp,pte,t0,t1
+	tlb_lock	spc,ptp,pte,t0,t1,dtlb_check_alias_11
+	update_accessed	ptp,pte,t0,t1
 
 	make_insert_tlb_11	spc,pte,prot
 
-	mfsp		%sr1,t0  /* Save sr1 so we can use it in tlb inserts */
+	mfsp		%sr1,t1  /* Save sr1 so we can use it in tlb inserts */
 	mtsp		spc,%sr1
 
 	idtlba		pte,(%sr1,va)
 	idtlbp		prot,(%sr1,va)
 
-	mtsp		t0, %sr1	/* Restore sr1 */
-	dbit_unlock1	spc,t0
+	mtsp		t1, %sr1	/* Restore sr1 */
 
+	tlb_unlock1	spc,t0
 	rfir
 	nop
 
@@ -1235,21 +1231,20 @@ nadtlb_miss_11:
 
 	L2_ptep		ptp,pte,t0,va,nadtlb_check_alias_11
 
-	dbit_lock	spc,t0,t1
-	update_ptep	spc,ptp,pte,t0,t1
+	tlb_lock	spc,ptp,pte,t0,t1,nadtlb_check_alias_11
+	update_accessed	ptp,pte,t0,t1
 
 	make_insert_tlb_11	spc,pte,prot
 
-
-	mfsp		%sr1,t0  /* Save sr1 so we can use it in tlb inserts */
+	mfsp		%sr1,t1  /* Save sr1 so we can use it in tlb inserts */
 	mtsp		spc,%sr1
 
 	idtlba		pte,(%sr1,va)
 	idtlbp		prot,(%sr1,va)
 
-	mtsp		t0, %sr1	/* Restore sr1 */
-	dbit_unlock1	spc,t0
+	mtsp		t1, %sr1	/* Restore sr1 */
 
+	tlb_unlock1	spc,t0
 	rfir
 	nop
 
@@ -1269,16 +1264,16 @@ dtlb_miss_20:
 
 	L2_ptep		ptp,pte,t0,va,dtlb_check_alias_20
 
-	dbit_lock	spc,t0,t1
-	update_ptep	spc,ptp,pte,t0,t1
+	tlb_lock	spc,ptp,pte,t0,t1,dtlb_check_alias_20
+	update_accessed	ptp,pte,t0,t1
 
 	make_insert_tlb	spc,pte,prot
 
-	f_extend	pte,t0
+	f_extend	pte,t1
 
 	idtlbt          pte,prot
-	dbit_unlock1	spc,t0
 
+	tlb_unlock1	spc,t0
 	rfir
 	nop
 
@@ -1297,16 +1292,16 @@ nadtlb_miss_20:
 
 	L2_ptep		ptp,pte,t0,va,nadtlb_check_alias_20
 
-	dbit_lock	spc,t0,t1
-	update_ptep	spc,ptp,pte,t0,t1
+	tlb_lock	spc,ptp,pte,t0,t1,nadtlb_check_alias_20
+	update_accessed	ptp,pte,t0,t1
 
 	make_insert_tlb	spc,pte,prot
 
-	f_extend	pte,t0
+	f_extend	pte,t1
 	
-        idtlbt          pte,prot
-	dbit_unlock1	spc,t0
+	idtlbt		pte,prot
 
+	tlb_unlock1	spc,t0
 	rfir
 	nop
 
@@ -1406,14 +1401,14 @@ itlb_miss_20w:
 
 	L3_ptep		ptp,pte,t0,va,itlb_fault
 
-	dbit_lock	spc,t0,t1
-	update_ptep	spc,ptp,pte,t0,t1
+	tlb_lock	spc,ptp,pte,t0,t1,itlb_fault
+	update_accessed	ptp,pte,t0,t1
 
 	make_insert_tlb	spc,pte,prot
 	
 	iitlbt          pte,prot
-	dbit_unlock1	spc,t0
 
+	tlb_unlock1	spc,t0
 	rfir
 	nop
 
@@ -1430,14 +1425,14 @@ naitlb_miss_20w:
 
 	L3_ptep		ptp,pte,t0,va,naitlb_check_alias_20w
 
-	dbit_lock	spc,t0,t1
-	update_ptep	spc,ptp,pte,t0,t1
+	tlb_lock	spc,ptp,pte,t0,t1,naitlb_check_alias_20w
+	update_accessed	ptp,pte,t0,t1
 
 	make_insert_tlb	spc,pte,prot
 
 	iitlbt          pte,prot
-	dbit_unlock1	spc,t0
 
+	tlb_unlock1	spc,t0
 	rfir
 	nop
 
@@ -1458,20 +1453,20 @@ itlb_miss_11:
 
 	L2_ptep		ptp,pte,t0,va,itlb_fault
 
-	dbit_lock	spc,t0,t1
-	update_ptep	spc,ptp,pte,t0,t1
+	tlb_lock	spc,ptp,pte,t0,t1,itlb_fault
+	update_accessed	ptp,pte,t0,t1
 
 	make_insert_tlb_11	spc,pte,prot
 
-	mfsp		%sr1,t0  /* Save sr1 so we can use it in tlb inserts */
+	mfsp		%sr1,t1  /* Save sr1 so we can use it in tlb inserts */
 	mtsp		spc,%sr1
 
 	iitlba		pte,(%sr1,va)
 	iitlbp		prot,(%sr1,va)
 
-	mtsp		t0, %sr1	/* Restore sr1 */
-	dbit_unlock1	spc,t0
+	mtsp		t1, %sr1	/* Restore sr1 */
 
+	tlb_unlock1	spc,t0
 	rfir
 	nop
 
@@ -1482,20 +1477,20 @@ naitlb_miss_11:
 
 	L2_ptep		ptp,pte,t0,va,naitlb_check_alias_11
 
-	dbit_lock	spc,t0,t1
-	update_ptep	spc,ptp,pte,t0,t1
+	tlb_lock	spc,ptp,pte,t0,t1,naitlb_check_alias_11
+	update_accessed	ptp,pte,t0,t1
 
 	make_insert_tlb_11	spc,pte,prot
 
-	mfsp		%sr1,t0  /* Save sr1 so we can use it in tlb inserts */
+	mfsp		%sr1,t1  /* Save sr1 so we can use it in tlb inserts */
 	mtsp		spc,%sr1
 
 	iitlba		pte,(%sr1,va)
 	iitlbp		prot,(%sr1,va)
 
-	mtsp		t0, %sr1	/* Restore sr1 */
-	dbit_unlock1	spc,t0
+	mtsp		t1, %sr1	/* Restore sr1 */
 
+	tlb_unlock1	spc,t0
 	rfir
 	nop
 
@@ -1516,16 +1511,16 @@ itlb_miss_20:
 
 	L2_ptep		ptp,pte,t0,va,itlb_fault
 
-	dbit_lock	spc,t0,t1
-	update_ptep	spc,ptp,pte,t0,t1
+	tlb_lock	spc,ptp,pte,t0,t1,itlb_fault
+	update_accessed	ptp,pte,t0,t1
 
 	make_insert_tlb	spc,pte,prot
 
-	f_extend	pte,t0	
+	f_extend	pte,t1
 
 	iitlbt          pte,prot
-	dbit_unlock1	spc,t0
 
+	tlb_unlock1	spc,t0
 	rfir
 	nop
 
@@ -1536,16 +1531,16 @@ naitlb_miss_20:
 
 	L2_ptep		ptp,pte,t0,va,naitlb_check_alias_20
 
-	dbit_lock	spc,t0,t1
-	update_ptep	spc,ptp,pte,t0,t1
+	tlb_lock	spc,ptp,pte,t0,t1,naitlb_check_alias_20
+	update_accessed	ptp,pte,t0,t1
 
 	make_insert_tlb	spc,pte,prot
 
-	f_extend	pte,t0
+	f_extend	pte,t1
 
 	iitlbt          pte,prot
-	dbit_unlock1	spc,t0
 
+	tlb_unlock1	spc,t0
 	rfir
 	nop
 
@@ -1568,14 +1563,14 @@ dbit_trap_20w:
 
 	L3_ptep		ptp,pte,t0,va,dbit_fault
 
-	dbit_lock	spc,t0,t1
-	update_dirty	spc,ptp,pte,t1
+	tlb_lock	spc,ptp,pte,t0,t1,dbit_fault
+	update_dirty	ptp,pte,t1
 
 	make_insert_tlb	spc,pte,prot
 		
 	idtlbt          pte,prot
-	dbit_unlock0	spc,t0
 
+	tlb_unlock0	spc,t0
 	rfir
 	nop
 #else
@@ -1588,8 +1583,8 @@ dbit_trap_11:
 
 	L2_ptep		ptp,pte,t0,va,dbit_fault
 
-	dbit_lock	spc,t0,t1
-	update_dirty	spc,ptp,pte,t1
+	tlb_lock	spc,ptp,pte,t0,t1,dbit_fault
+	update_dirty	ptp,pte,t1
 
 	make_insert_tlb_11	spc,pte,prot
 
@@ -1600,8 +1595,8 @@ dbit_trap_11:
 	idtlbp		prot,(%sr1,va)
 
 	mtsp            t1, %sr1     /* Restore sr1 */
-	dbit_unlock0	spc,t0
 
+	tlb_unlock0	spc,t0
 	rfir
 	nop
 
@@ -1612,16 +1607,16 @@ dbit_trap_20:
 
 	L2_ptep		ptp,pte,t0,va,dbit_fault
 
-	dbit_lock	spc,t0,t1
-	update_dirty	spc,ptp,pte,t1
+	tlb_lock	spc,ptp,pte,t0,t1,dbit_fault
+	update_dirty	ptp,pte,t1
 
 	make_insert_tlb	spc,pte,prot
 
 	f_extend	pte,t1
 	
-        idtlbt          pte,prot
-	dbit_unlock0	spc,t0
+	idtlbt		pte,prot
 
+	tlb_unlock0	spc,t0
 	rfir
 	nop
 #endif
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/parisc/kernel/traps.c linux-libre-4.1.6-gnu/arch/parisc/kernel/traps.c
--- linux-libre-4.1-gnu/arch/parisc/kernel/traps.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/parisc/kernel/traps.c	2015-08-16 23:52:51.000000000 -0400
@@ -43,10 +43,6 @@
 
 #include "../math-emu/math-emu.h"	/* for handle_fpe() */
 
-#if defined(CONFIG_SMP) || defined(CONFIG_DEBUG_SPINLOCK)
-DEFINE_SPINLOCK(pa_dbit_lock);
-#endif
-
 static void parisc_show_stack(struct task_struct *task, unsigned long *sp,
 	struct pt_regs *regs);
 
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/powerpc/kernel/idle_power7.S linux-libre-4.1.6-gnu/arch/powerpc/kernel/idle_power7.S
--- linux-libre-4.1-gnu/arch/powerpc/kernel/idle_power7.S	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/powerpc/kernel/idle_power7.S	2015-08-16 23:52:51.000000000 -0400
@@ -52,6 +52,22 @@
 	.text
 
 /*
+ * Used by threads when the lock bit of core_idle_state is set.
+ * Threads will spin in HMT_LOW until the lock bit is cleared.
+ * r14 - pointer to core_idle_state
+ * r15 - used to load contents of core_idle_state
+ */
+
+core_idle_lock_held:
+	HMT_LOW
+3:	lwz	r15,0(r14)
+	andi.   r15,r15,PNV_CORE_IDLE_LOCK_BIT
+	bne	3b
+	HMT_MEDIUM
+	lwarx	r15,0,r14
+	blr
+
+/*
  * Pass requested state in r3:
  *	r3 - PNV_THREAD_NAP/SLEEP/WINKLE
  *
@@ -150,6 +166,10 @@ power7_enter_nap_mode:
 	ld	r14,PACA_CORE_IDLE_STATE_PTR(r13)
 lwarx_loop1:
 	lwarx	r15,0,r14
+
+	andi.   r9,r15,PNV_CORE_IDLE_LOCK_BIT
+	bnel	core_idle_lock_held
+
 	andc	r15,r15,r7			/* Clear thread bit */
 
 	andi.	r15,r15,PNV_CORE_IDLE_THREAD_BITS
@@ -294,7 +314,7 @@ lwarx_loop2:
 	 * workaround undo code or resyncing timebase or restoring context
 	 * In either case loop until the lock bit is cleared.
 	 */
-	bne	core_idle_lock_held
+	bnel	core_idle_lock_held
 
 	cmpwi	cr2,r15,0
 	lbz	r4,PACA_SUBCORE_SIBLING_MASK(r13)
@@ -319,15 +339,6 @@ lwarx_loop2:
 	isync
 	b	common_exit
 
-core_idle_lock_held:
-	HMT_LOW
-core_idle_lock_loop:
-	lwz	r15,0(14)
-	andi.   r9,r15,PNV_CORE_IDLE_LOCK_BIT
-	bne	core_idle_lock_loop
-	HMT_MEDIUM
-	b	lwarx_loop2
-
 first_thread_in_subcore:
 	/* First thread in subcore to wakeup */
 	ori	r15,r15,PNV_CORE_IDLE_LOCK_BIT
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/powerpc/kernel/signal_32.c linux-libre-4.1.6-gnu/arch/powerpc/kernel/signal_32.c
--- linux-libre-4.1-gnu/arch/powerpc/kernel/signal_32.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/powerpc/kernel/signal_32.c	2015-08-16 23:52:51.000000000 -0400
@@ -966,8 +966,6 @@ int copy_siginfo_to_user32(struct compat
 
 int copy_siginfo_from_user32(siginfo_t *to, struct compat_siginfo __user *from)
 {
-	memset(to, 0, sizeof *to);
-
 	if (copy_from_user(to, from, 3*sizeof(int)) ||
 	    copy_from_user(to->_sifields._pad,
 			   from->_sifields._pad, SI_PAD_SIZE32))
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/powerpc/perf/core-book3s.c linux-libre-4.1.6-gnu/arch/powerpc/perf/core-book3s.c
--- linux-libre-4.1-gnu/arch/powerpc/perf/core-book3s.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/powerpc/perf/core-book3s.c	2015-08-16 23:52:51.000000000 -0400
@@ -131,7 +131,16 @@ static void pmao_restore_workaround(bool
 
 static bool regs_use_siar(struct pt_regs *regs)
 {
-	return !!regs->result;
+	/*
+	 * When we take a performance monitor exception the regs are setup
+	 * using perf_read_regs() which overloads some fields, in particular
+	 * regs->result to tell us whether to use SIAR.
+	 *
+	 * However if the regs are from another exception, eg. a syscall, then
+	 * they have not been setup using perf_read_regs() and so regs->result
+	 * is something random.
+	 */
+	return ((TRAP(regs) == 0xf00) && regs->result);
 }
 
 /*
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/s390/hypfs/inode.c linux-libre-4.1.6-gnu/arch/s390/hypfs/inode.c
--- linux-libre-4.1-gnu/arch/s390/hypfs/inode.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/s390/hypfs/inode.c	2015-08-16 23:52:51.000000000 -0400
@@ -456,8 +456,6 @@ static const struct super_operations hyp
 	.show_options	= hypfs_show_options,
 };
 
-static struct kobject *s390_kobj;
-
 static int __init hypfs_init(void)
 {
 	int rc;
@@ -481,18 +479,16 @@ static int __init hypfs_init(void)
 		rc = -ENODATA;
 		goto fail_hypfs_sprp_exit;
 	}
-	s390_kobj = kobject_create_and_add("s390", hypervisor_kobj);
-	if (!s390_kobj) {
-		rc = -ENOMEM;
+	rc = sysfs_create_mount_point(hypervisor_kobj, "s390");
+	if (rc)
 		goto fail_hypfs_diag0c_exit;
-	}
 	rc = register_filesystem(&hypfs_type);
 	if (rc)
 		goto fail_filesystem;
 	return 0;
 
 fail_filesystem:
-	kobject_put(s390_kobj);
+	sysfs_remove_mount_point(hypervisor_kobj, "s390");
 fail_hypfs_diag0c_exit:
 	hypfs_diag0c_exit();
 fail_hypfs_sprp_exit:
@@ -510,7 +506,7 @@ fail_dbfs_exit:
 static void __exit hypfs_exit(void)
 {
 	unregister_filesystem(&hypfs_type);
-	kobject_put(s390_kobj);
+	sysfs_remove_mount_point(hypervisor_kobj, "s390");
 	hypfs_diag0c_exit();
 	hypfs_sprp_exit();
 	hypfs_vm_exit();
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/s390/include/asm/ctl_reg.h linux-libre-4.1.6-gnu/arch/s390/include/asm/ctl_reg.h
--- linux-libre-4.1-gnu/arch/s390/include/asm/ctl_reg.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/s390/include/asm/ctl_reg.h	2015-08-16 23:52:51.000000000 -0400
@@ -57,7 +57,10 @@ union ctlreg0 {
 		unsigned long lap  : 1; /* Low-address-protection control */
 		unsigned long	   : 4;
 		unsigned long edat : 1; /* Enhanced-DAT-enablement control */
-		unsigned long	   : 23;
+		unsigned long	   : 4;
+		unsigned long afp  : 1; /* AFP-register control */
+		unsigned long vx   : 1; /* Vector enablement control */
+		unsigned long	   : 17;
 	};
 };
 
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/s390/kernel/cache.c linux-libre-4.1.6-gnu/arch/s390/kernel/cache.c
--- linux-libre-4.1-gnu/arch/s390/kernel/cache.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/s390/kernel/cache.c	2015-08-16 23:52:51.000000000 -0400
@@ -138,6 +138,8 @@ int init_cache_level(unsigned int cpu)
 	union cache_topology ct;
 	enum cache_type ctype;
 
+	if (!test_facility(34))
+		return -EOPNOTSUPP;
 	if (!this_cpu_ci)
 		return -EINVAL;
 	ct.raw = ecag(EXTRACT_TOPOLOGY, 0, 0);
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/s390/kernel/crash_dump.c linux-libre-4.1.6-gnu/arch/s390/kernel/crash_dump.c
--- linux-libre-4.1-gnu/arch/s390/kernel/crash_dump.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/s390/kernel/crash_dump.c	2015-08-16 23:52:51.000000000 -0400
@@ -415,7 +415,7 @@ static void *nt_s390_vx_low(void *ptr, _
 	ptr += len;
 	/* Copy lower halves of SIMD registers 0-15 */
 	for (i = 0; i < 16; i++) {
-		memcpy(ptr, &vx_regs[i], 8);
+		memcpy(ptr, &vx_regs[i].u[2], 8);
 		ptr += 8;
 	}
 	return ptr;
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/s390/kernel/nmi.c linux-libre-4.1.6-gnu/arch/s390/kernel/nmi.c
--- linux-libre-4.1-gnu/arch/s390/kernel/nmi.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/s390/kernel/nmi.c	2015-08-16 23:52:51.000000000 -0400
@@ -21,6 +21,7 @@
 #include <asm/nmi.h>
 #include <asm/crw.h>
 #include <asm/switch_to.h>
+#include <asm/ctl_reg.h>
 
 struct mcck_struct {
 	int kill_task;
@@ -129,26 +130,30 @@ static int notrace s390_revalidate_regis
 	} else
 		asm volatile("lfpc 0(%0)" : : "a" (fpt_creg_save_area));
 
-	asm volatile(
-		"	ld	0,0(%0)\n"
-		"	ld	1,8(%0)\n"
-		"	ld	2,16(%0)\n"
-		"	ld	3,24(%0)\n"
-		"	ld	4,32(%0)\n"
-		"	ld	5,40(%0)\n"
-		"	ld	6,48(%0)\n"
-		"	ld	7,56(%0)\n"
-		"	ld	8,64(%0)\n"
-		"	ld	9,72(%0)\n"
-		"	ld	10,80(%0)\n"
-		"	ld	11,88(%0)\n"
-		"	ld	12,96(%0)\n"
-		"	ld	13,104(%0)\n"
-		"	ld	14,112(%0)\n"
-		"	ld	15,120(%0)\n"
-		: : "a" (fpt_save_area));
-	/* Revalidate vector registers */
-	if (MACHINE_HAS_VX && current->thread.vxrs) {
+	if (!MACHINE_HAS_VX) {
+		/* Revalidate floating point registers */
+		asm volatile(
+			"	ld	0,0(%0)\n"
+			"	ld	1,8(%0)\n"
+			"	ld	2,16(%0)\n"
+			"	ld	3,24(%0)\n"
+			"	ld	4,32(%0)\n"
+			"	ld	5,40(%0)\n"
+			"	ld	6,48(%0)\n"
+			"	ld	7,56(%0)\n"
+			"	ld	8,64(%0)\n"
+			"	ld	9,72(%0)\n"
+			"	ld	10,80(%0)\n"
+			"	ld	11,88(%0)\n"
+			"	ld	12,96(%0)\n"
+			"	ld	13,104(%0)\n"
+			"	ld	14,112(%0)\n"
+			"	ld	15,120(%0)\n"
+			: : "a" (fpt_save_area));
+	} else {
+		/* Revalidate vector registers */
+		union ctlreg0 cr0;
+
 		if (!mci->vr) {
 			/*
 			 * Vector registers can't be restored and therefore
@@ -156,8 +161,12 @@ static int notrace s390_revalidate_regis
 			 */
 			kill_task = 1;
 		}
+		cr0.val = S390_lowcore.cregs_save_area[0];
+		cr0.afp = cr0.vx = 1;
+		__ctl_load(cr0.val, 0, 0);
 		restore_vx_regs((__vector128 *)
-				S390_lowcore.vector_save_area_addr);
+				&S390_lowcore.vector_save_area);
+		__ctl_load(S390_lowcore.cregs_save_area[0], 0, 0);
 	}
 	/* Revalidate access registers */
 	asm volatile(
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/s390/kernel/process.c linux-libre-4.1.6-gnu/arch/s390/kernel/process.c
--- linux-libre-4.1-gnu/arch/s390/kernel/process.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/s390/kernel/process.c	2015-08-16 23:52:51.000000000 -0400
@@ -163,7 +163,7 @@ int copy_thread(unsigned long clone_flag
 asmlinkage void execve_tail(void)
 {
 	current->thread.fp_regs.fpc = 0;
-	asm volatile("sfpc %0,%0" : : "d" (0));
+	asm volatile("sfpc %0" : : "d" (0));
 }
 
 /*
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/s390/kernel/sclp.S linux-libre-4.1.6-gnu/arch/s390/kernel/sclp.S
--- linux-libre-4.1-gnu/arch/s390/kernel/sclp.S	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/s390/kernel/sclp.S	2015-08-16 23:52:51.000000000 -0400
@@ -270,6 +270,8 @@ ENTRY(_sclp_print_early)
 	jno	.Lesa2
 	ahi	%r15,-80
 	stmh	%r6,%r15,96(%r15)		# store upper register halves
+	basr	%r13,0
+	lmh	%r0,%r15,.Lzeroes-.(%r13)	# clear upper register halves
 .Lesa2:
 	lr	%r10,%r2			# save string pointer
 	lhi	%r2,0
@@ -291,6 +293,8 @@ ENTRY(_sclp_print_early)
 .Lesa3:
 	lm	%r6,%r15,120(%r15)		# restore registers
 	br	%r14
+.Lzeroes:
+	.fill	64,4,0
 
 .LwritedataS4:
 	.long	0x00760005			# SCLP command for write data
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/s390/kvm/interrupt.c linux-libre-4.1.6-gnu/arch/s390/kvm/interrupt.c
--- linux-libre-4.1-gnu/arch/s390/kvm/interrupt.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/s390/kvm/interrupt.c	2015-08-16 23:52:51.000000000 -0400
@@ -1061,7 +1061,7 @@ static int __inject_extcall(struct kvm_v
 	if (sclp_has_sigpif())
 		return __inject_extcall_sigpif(vcpu, src_id);
 
-	if (!test_and_set_bit(IRQ_PEND_EXT_EXTERNAL, &li->pending_irqs))
+	if (test_and_set_bit(IRQ_PEND_EXT_EXTERNAL, &li->pending_irqs))
 		return -EBUSY;
 	*extcall = irq->u.extcall;
 	atomic_set_mask(CPUSTAT_EXT_INT, li->cpuflags);
@@ -1606,6 +1606,9 @@ void kvm_s390_clear_float_irqs(struct kv
 	int i;
 
 	spin_lock(&fi->lock);
+	fi->pending_irqs = 0;
+	memset(&fi->srv_signal, 0, sizeof(fi->srv_signal));
+	memset(&fi->mchk, 0, sizeof(fi->mchk));
 	for (i = 0; i < FIRQ_LIST_COUNT; i++)
 		clear_irq_list(&fi->lists[i]);
 	for (i = 0; i < FIRQ_MAX_COUNT; i++)
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/s390/net/bpf_jit_comp.c linux-libre-4.1.6-gnu/arch/s390/net/bpf_jit_comp.c
--- linux-libre-4.1-gnu/arch/s390/net/bpf_jit_comp.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/s390/net/bpf_jit_comp.c	2015-08-16 23:52:51.000000000 -0400
@@ -227,7 +227,7 @@ static inline void reg_set_seen(struct b
 ({								\
 	/* Branch instruction needs 6 bytes */			\
 	int rel = (addrs[i + off + 1] - (addrs[i + 1] - 6)) / 2;\
-	_EMIT6(op1 | reg(b1, b2) << 16 | rel, op2 | mask);	\
+	_EMIT6(op1 | reg(b1, b2) << 16 | (rel & 0xffff), op2 | mask);	\
 	REG_SET_SEEN(b1);					\
 	REG_SET_SEEN(b2);					\
 })
@@ -415,13 +415,13 @@ static void bpf_jit_prologue(struct bpf_
 		EMIT6_DISP_LH(0xe3000000, 0x0004, REG_SKB_DATA, REG_0,
 			      BPF_REG_1, offsetof(struct sk_buff, data));
 	}
-	/* BPF compatibility: clear A (%b7) and X (%b8) registers */
-	if (REG_SEEN(BPF_REG_7))
-		/* lghi %b7,0 */
-		EMIT4_IMM(0xa7090000, BPF_REG_7, 0);
-	if (REG_SEEN(BPF_REG_8))
-		/* lghi %b8,0 */
-		EMIT4_IMM(0xa7090000, BPF_REG_8, 0);
+	/* BPF compatibility: clear A (%b0) and X (%b7) registers */
+	if (REG_SEEN(BPF_REG_A))
+		/* lghi %ba,0 */
+		EMIT4_IMM(0xa7090000, BPF_REG_A, 0);
+	if (REG_SEEN(BPF_REG_X))
+		/* lghi %bx,0 */
+		EMIT4_IMM(0xa7090000, BPF_REG_X, 0);
 }
 
 /*
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/sparc/include/asm/visasm.h linux-libre-4.1.6-gnu/arch/sparc/include/asm/visasm.h
--- linux-libre-4.1-gnu/arch/sparc/include/asm/visasm.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/sparc/include/asm/visasm.h	2015-08-16 23:52:51.000000000 -0400
@@ -28,16 +28,10 @@
  * Must preserve %o5 between VISEntryHalf and VISExitHalf */
 
 #define VISEntryHalf					\
-	rd		%fprs, %o5;			\
-	andcc		%o5, FPRS_FEF, %g0;		\
-	be,pt		%icc, 297f;			\
-	 sethi		%hi(298f), %g7;			\
-	sethi		%hi(VISenterhalf), %g1;		\
-	jmpl		%g1 + %lo(VISenterhalf), %g0;	\
-	 or		%g7, %lo(298f), %g7;		\
-	clr		%o5;				\
-297:	wr		%o5, FPRS_FEF, %fprs;		\
-298:
+	VISEntry
+
+#define VISExitHalf					\
+	VISExit
 
 #define VISEntryHalfFast(fail_label)			\
 	rd		%fprs, %o5;			\
@@ -47,7 +41,7 @@
 	ba,a,pt		%xcc, fail_label;		\
 297:	wr		%o5, FPRS_FEF, %fprs;
 
-#define VISExitHalf					\
+#define VISExitHalfFast					\
 	wr		%o5, 0, %fprs;
 
 #ifndef __ASSEMBLY__
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/sparc/lib/ksyms.c linux-libre-4.1.6-gnu/arch/sparc/lib/ksyms.c
--- linux-libre-4.1-gnu/arch/sparc/lib/ksyms.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/sparc/lib/ksyms.c	2015-08-16 23:52:51.000000000 -0400
@@ -135,10 +135,6 @@ EXPORT_SYMBOL(copy_user_page);
 void VISenter(void);
 EXPORT_SYMBOL(VISenter);
 
-/* CRYPTO code needs this */
-void VISenterhalf(void);
-EXPORT_SYMBOL(VISenterhalf);
-
 extern void xor_vis_2(unsigned long, unsigned long *, unsigned long *);
 extern void xor_vis_3(unsigned long, unsigned long *, unsigned long *,
 		unsigned long *);
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/sparc/lib/NG4memcpy.S linux-libre-4.1.6-gnu/arch/sparc/lib/NG4memcpy.S
--- linux-libre-4.1-gnu/arch/sparc/lib/NG4memcpy.S	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/sparc/lib/NG4memcpy.S	2015-08-16 23:52:51.000000000 -0400
@@ -240,8 +240,11 @@ FUNC_NAME:	/* %o0=dst, %o1=src, %o2=len
 	add		%o0, 0x40, %o0
 	bne,pt		%icc, 1b
 	 LOAD(prefetch, %g1 + 0x200, #n_reads_strong)
+#ifdef NON_USER_COPY
+	VISExitHalfFast
+#else
 	VISExitHalf
-
+#endif
 	brz,pn		%o2, .Lexit
 	 cmp		%o2, 19
 	ble,pn		%icc, .Lsmall_unaligned
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/sparc/lib/VISsave.S linux-libre-4.1.6-gnu/arch/sparc/lib/VISsave.S
--- linux-libre-4.1-gnu/arch/sparc/lib/VISsave.S	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/sparc/lib/VISsave.S	2015-08-16 23:52:51.000000000 -0400
@@ -44,9 +44,8 @@ vis1:	ldub		[%g6 + TI_FPSAVED], %g3
 
 	 stx		%g3, [%g6 + TI_GSR]
 2:	add		%g6, %g1, %g3
-	cmp		%o5, FPRS_DU
-	be,pn		%icc, 6f
-	 sll		%g1, 3, %g1
+	mov		FPRS_DU | FPRS_DL | FPRS_FEF, %o5
+	sll		%g1, 3, %g1
 	stb		%o5, [%g3 + TI_FPSAVED]
 	rd		%gsr, %g2
 	add		%g6, %g1, %g3
@@ -80,65 +79,3 @@ vis1:	ldub		[%g6 + TI_FPSAVED], %g3
 	.align		32
 80:	jmpl		%g7 + %g0, %g0
 	 nop
-
-6:	ldub		[%g3 + TI_FPSAVED], %o5
-	or		%o5, FPRS_DU, %o5
-	add		%g6, TI_FPREGS+0x80, %g2
-	stb		%o5, [%g3 + TI_FPSAVED]
-
-	sll		%g1, 5, %g1
-	add		%g6, TI_FPREGS+0xc0, %g3
-	wr		%g0, FPRS_FEF, %fprs
-	membar		#Sync
-	stda		%f32, [%g2 + %g1] ASI_BLK_P
-	stda		%f48, [%g3 + %g1] ASI_BLK_P
-	membar		#Sync
-	ba,pt		%xcc, 80f
-	 nop
-
-	.align		32
-80:	jmpl		%g7 + %g0, %g0
-	 nop
-
-	.align		32
-VISenterhalf:
-	ldub		[%g6 + TI_FPDEPTH], %g1
-	brnz,a,pn	%g1, 1f
-	 cmp		%g1, 1
-	stb		%g0, [%g6 + TI_FPSAVED]
-	stx		%fsr, [%g6 + TI_XFSR]
-	clr		%o5
-	jmpl		%g7 + %g0, %g0
-	 wr		%g0, FPRS_FEF, %fprs
-
-1:	bne,pn		%icc, 2f
-	 srl		%g1, 1, %g1
-	ba,pt		%xcc, vis1
-	 sub		%g7, 8, %g7
-2:	addcc		%g6, %g1, %g3
-	sll		%g1, 3, %g1
-	andn		%o5, FPRS_DU, %g2
-	stb		%g2, [%g3 + TI_FPSAVED]
-
-	rd		%gsr, %g2
-	add		%g6, %g1, %g3
-	stx		%g2, [%g3 + TI_GSR]
-	add		%g6, %g1, %g2
-	stx		%fsr, [%g2 + TI_XFSR]
-	sll		%g1, 5, %g1
-3:	andcc		%o5, FPRS_DL, %g0
-	be,pn		%icc, 4f
-	 add		%g6, TI_FPREGS, %g2
-
-	add		%g6, TI_FPREGS+0x40, %g3
-	membar		#Sync
-	stda		%f0, [%g2 + %g1] ASI_BLK_P
-	stda		%f16, [%g3 + %g1] ASI_BLK_P
-	membar		#Sync
-	ba,pt		%xcc, 4f
-	 nop
-
-	.align		32
-4:	and		%o5, FPRS_DU, %o5
-	jmpl		%g7 + %g0, %g0
-	 wr		%o5, FPRS_FEF, %fprs
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/tile/kernel/compat_signal.c linux-libre-4.1.6-gnu/arch/tile/kernel/compat_signal.c
--- linux-libre-4.1-gnu/arch/tile/kernel/compat_signal.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/tile/kernel/compat_signal.c	2015-08-16 23:52:51.000000000 -0400
@@ -113,8 +113,6 @@ int copy_siginfo_from_user32(siginfo_t *
 	if (!access_ok(VERIFY_READ, from, sizeof(struct compat_siginfo)))
 		return -EFAULT;
 
-	memset(to, 0, sizeof(*to));
-
 	err = __get_user(to->si_signo, &from->si_signo);
 	err |= __get_user(to->si_errno, &from->si_errno);
 	err |= __get_user(to->si_code, &from->si_code);
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/tile/kernel/setup.c linux-libre-4.1.6-gnu/arch/tile/kernel/setup.c
--- linux-libre-4.1-gnu/arch/tile/kernel/setup.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/tile/kernel/setup.c	2015-08-16 23:52:51.000000000 -0400
@@ -1139,7 +1139,7 @@ static void __init load_hv_initrd(void)
 
 void __init free_initrd_mem(unsigned long begin, unsigned long end)
 {
-	free_bootmem(__pa(begin), end - begin);
+	free_bootmem_late(__pa(begin), end - begin);
 }
 
 static int __init setup_initrd(char *str)
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/x86/boot/compressed/eboot.c linux-libre-4.1.6-gnu/arch/x86/boot/compressed/eboot.c
--- linux-libre-4.1-gnu/arch/x86/boot/compressed/eboot.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/x86/boot/compressed/eboot.c	2015-08-16 23:52:51.000000000 -0400
@@ -1193,6 +1193,10 @@ static efi_status_t setup_e820(struct bo
 		unsigned int e820_type = 0;
 		unsigned long m = efi->efi_memmap;
 
+#ifdef CONFIG_X86_64
+		m |= (u64)efi->efi_memmap_hi << 32;
+#endif
+
 		d = (efi_memory_desc_t *)(m + (i * efi->efi_memdesc_size));
 		switch (d->type) {
 		case EFI_RESERVED_TYPE:
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/x86/include/asm/kasan.h linux-libre-4.1.6-gnu/arch/x86/include/asm/kasan.h
--- linux-libre-4.1-gnu/arch/x86/include/asm/kasan.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/x86/include/asm/kasan.h	2015-08-16 23:52:51.000000000 -0400
@@ -14,15 +14,11 @@
 
 #ifndef __ASSEMBLY__
 
-extern pte_t kasan_zero_pte[];
-extern pte_t kasan_zero_pmd[];
-extern pte_t kasan_zero_pud[];
-
 #ifdef CONFIG_KASAN
-void __init kasan_map_early_shadow(pgd_t *pgd);
+void __init kasan_early_init(void);
 void __init kasan_init(void);
 #else
-static inline void kasan_map_early_shadow(pgd_t *pgd) { }
+static inline void kasan_early_init(void) { }
 static inline void kasan_init(void) { }
 #endif
 
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/x86/include/asm/kvm_host.h linux-libre-4.1.6-gnu/arch/x86/include/asm/kvm_host.h
--- linux-libre-4.1-gnu/arch/x86/include/asm/kvm_host.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/x86/include/asm/kvm_host.h	2015-08-16 23:52:51.000000000 -0400
@@ -591,7 +591,7 @@ struct kvm_arch {
 	struct kvm_pic *vpic;
 	struct kvm_ioapic *vioapic;
 	struct kvm_pit *vpit;
-	int vapics_in_nmi_mode;
+	atomic_t vapics_in_nmi_mode;
 	struct mutex apic_map_lock;
 	struct kvm_apic_map *apic_map;
 
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/x86/include/asm/mmu_context.h linux-libre-4.1.6-gnu/arch/x86/include/asm/mmu_context.h
--- linux-libre-4.1-gnu/arch/x86/include/asm/mmu_context.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/x86/include/asm/mmu_context.h	2015-08-16 23:52:51.000000000 -0400
@@ -23,7 +23,7 @@ extern struct static_key rdpmc_always_av
 
 static inline void load_mm_cr4(struct mm_struct *mm)
 {
-	if (static_key_true(&rdpmc_always_available) ||
+	if (static_key_false(&rdpmc_always_available) ||
 	    atomic_read(&mm->context.perf_rdpmc_allowed))
 		cr4_set_bits(X86_CR4_PCE);
 	else
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/x86/kernel/cpu/perf_event.c linux-libre-4.1.6-gnu/arch/x86/kernel/cpu/perf_event.c
--- linux-libre-4.1-gnu/arch/x86/kernel/cpu/perf_event.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/x86/kernel/cpu/perf_event.c	2015-08-16 23:52:51.000000000 -0400
@@ -270,11 +270,7 @@ msr_fail:
 
 static void hw_perf_event_destroy(struct perf_event *event)
 {
-	if (atomic_dec_and_mutex_lock(&active_events, &pmc_reserve_mutex)) {
-		release_pmc_hardware();
-		release_ds_buffers();
-		mutex_unlock(&pmc_reserve_mutex);
-	}
+	x86_release_hardware();
 }
 
 void hw_perf_lbr_event_destroy(struct perf_event *event)
@@ -324,6 +320,35 @@ set_ext_hw_attr(struct hw_perf_event *hw
 	return x86_pmu_extra_regs(val, event);
 }
 
+int x86_reserve_hardware(void)
+{
+	int err = 0;
+
+	if (!atomic_inc_not_zero(&active_events)) {
+		mutex_lock(&pmc_reserve_mutex);
+		if (atomic_read(&active_events) == 0) {
+			if (!reserve_pmc_hardware())
+				err = -EBUSY;
+			else
+				reserve_ds_buffers();
+		}
+		if (!err)
+			atomic_inc(&active_events);
+		mutex_unlock(&pmc_reserve_mutex);
+	}
+
+	return err;
+}
+
+void x86_release_hardware(void)
+{
+	if (atomic_dec_and_mutex_lock(&active_events, &pmc_reserve_mutex)) {
+		release_pmc_hardware();
+		release_ds_buffers();
+		mutex_unlock(&pmc_reserve_mutex);
+	}
+}
+
 /*
  * Check if we can create event of a certain type (that no conflicting events
  * are present).
@@ -336,9 +361,10 @@ int x86_add_exclusive(unsigned int what)
 		return 0;
 
 	mutex_lock(&pmc_reserve_mutex);
-	for (i = 0; i < ARRAY_SIZE(x86_pmu.lbr_exclusive); i++)
+	for (i = 0; i < ARRAY_SIZE(x86_pmu.lbr_exclusive); i++) {
 		if (i != what && atomic_read(&x86_pmu.lbr_exclusive[i]))
 			goto out;
+	}
 
 	atomic_inc(&x86_pmu.lbr_exclusive[what]);
 	ret = 0;
@@ -527,19 +553,7 @@ static int __x86_pmu_event_init(struct p
 	if (!x86_pmu_initialized())
 		return -ENODEV;
 
-	err = 0;
-	if (!atomic_inc_not_zero(&active_events)) {
-		mutex_lock(&pmc_reserve_mutex);
-		if (atomic_read(&active_events) == 0) {
-			if (!reserve_pmc_hardware())
-				err = -EBUSY;
-			else
-				reserve_ds_buffers();
-		}
-		if (!err)
-			atomic_inc(&active_events);
-		mutex_unlock(&pmc_reserve_mutex);
-	}
+	err = x86_reserve_hardware();
 	if (err)
 		return err;
 
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/x86/kernel/cpu/perf_event.h linux-libre-4.1.6-gnu/arch/x86/kernel/cpu/perf_event.h
--- linux-libre-4.1-gnu/arch/x86/kernel/cpu/perf_event.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/x86/kernel/cpu/perf_event.h	2015-08-16 23:52:51.000000000 -0400
@@ -703,6 +703,10 @@ int x86_add_exclusive(unsigned int what)
 
 void x86_del_exclusive(unsigned int what);
 
+int x86_reserve_hardware(void);
+
+void x86_release_hardware(void);
+
 void hw_perf_lbr_event_destroy(struct perf_event *event);
 
 int x86_setup_perfctr(struct perf_event *event);
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/x86/kernel/cpu/perf_event_intel_bts.c linux-libre-4.1.6-gnu/arch/x86/kernel/cpu/perf_event_intel_bts.c
--- linux-libre-4.1-gnu/arch/x86/kernel/cpu/perf_event_intel_bts.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/x86/kernel/cpu/perf_event_intel_bts.c	2015-08-16 23:52:51.000000000 -0400
@@ -483,17 +483,26 @@ static int bts_event_add(struct perf_eve
 
 static void bts_event_destroy(struct perf_event *event)
 {
+	x86_release_hardware();
 	x86_del_exclusive(x86_lbr_exclusive_bts);
 }
 
 static int bts_event_init(struct perf_event *event)
 {
+	int ret;
+
 	if (event->attr.type != bts_pmu.type)
 		return -ENOENT;
 
 	if (x86_add_exclusive(x86_lbr_exclusive_bts))
 		return -EBUSY;
 
+	ret = x86_reserve_hardware();
+	if (ret) {
+		x86_del_exclusive(x86_lbr_exclusive_bts);
+		return ret;
+	}
+
 	event->destroy = bts_event_destroy;
 
 	return 0;
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/x86/kernel/cpu/perf_event_intel.c linux-libre-4.1.6-gnu/arch/x86/kernel/cpu/perf_event_intel.c
--- linux-libre-4.1-gnu/arch/x86/kernel/cpu/perf_event_intel.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/x86/kernel/cpu/perf_event_intel.c	2015-08-16 23:52:51.000000000 -0400
@@ -3253,6 +3253,8 @@ __init int intel_pmu_init(void)
 
 	case 61: /* 14nm Broadwell Core-M */
 	case 86: /* 14nm Broadwell Xeon D */
+	case 71: /* 14nm Broadwell + GT3e (Intel Iris Pro graphics) */
+	case 79: /* 14nm Broadwell Server */
 		x86_pmu.late_ack = true;
 		memcpy(hw_cache_event_ids, hsw_hw_cache_event_ids, sizeof(hw_cache_event_ids));
 		memcpy(hw_cache_extra_regs, hsw_hw_cache_extra_regs, sizeof(hw_cache_extra_regs));
@@ -3322,13 +3324,13 @@ __init int intel_pmu_init(void)
 		 * counter, so do not extend mask to generic counters
 		 */
 		for_each_event_constraint(c, x86_pmu.event_constraints) {
-			if (c->cmask != FIXED_EVENT_FLAGS
-			    || c->idxmsk64 == INTEL_PMC_MSK_FIXED_REF_CYCLES) {
-				continue;
+			if (c->cmask == FIXED_EVENT_FLAGS
+			    && c->idxmsk64 != INTEL_PMC_MSK_FIXED_REF_CYCLES) {
+				c->idxmsk64 |= (1ULL << x86_pmu.num_counters) - 1;
 			}
-
-			c->idxmsk64 |= (1ULL << x86_pmu.num_counters) - 1;
-			c->weight += x86_pmu.num_counters;
+			c->idxmsk64 &=
+				~(~0UL << (INTEL_PMC_IDX_FIXED + x86_pmu.num_counters_fixed));
+			c->weight = hweight64(c->idxmsk64);
 		}
 	}
 
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/x86/kernel/cpu/perf_event_intel_cqm.c linux-libre-4.1.6-gnu/arch/x86/kernel/cpu/perf_event_intel_cqm.c
--- linux-libre-4.1-gnu/arch/x86/kernel/cpu/perf_event_intel_cqm.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/x86/kernel/cpu/perf_event_intel_cqm.c	2015-08-16 23:52:51.000000000 -0400
@@ -934,6 +934,14 @@ static u64 intel_cqm_event_count(struct
 		return 0;
 
 	/*
+	 * Getting up-to-date values requires an SMP IPI which is not
+	 * possible if we're being called in interrupt context. Return
+	 * the cached values instead.
+	 */
+	if (unlikely(in_interrupt()))
+		goto out;
+
+	/*
 	 * Notice that we don't perform the reading of an RMID
 	 * atomically, because we can't hold a spin lock across the
 	 * IPIs.
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/x86/kernel/entry_64.S linux-libre-4.1.6-gnu/arch/x86/kernel/entry_64.S
--- linux-libre-4.1-gnu/arch/x86/kernel/entry_64.S	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/x86/kernel/entry_64.S	2015-08-16 23:52:51.000000000 -0400
@@ -793,8 +793,6 @@ retint_kernel:
 restore_c_regs_and_iret:
 	RESTORE_C_REGS
 	REMOVE_PT_GPREGS_FROM_STACK 8
-
-irq_return:
 	INTERRUPT_RETURN
 
 ENTRY(native_iret)
@@ -1413,11 +1411,12 @@ ENTRY(nmi)
 	 *  If the variable is not set and the stack is not the NMI
 	 *  stack then:
 	 *    o Set the special variable on the stack
-	 *    o Copy the interrupt frame into a "saved" location on the stack
-	 *    o Copy the interrupt frame into a "copy" location on the stack
+	 *    o Copy the interrupt frame into an "outermost" location on the
+	 *      stack
+	 *    o Copy the interrupt frame into an "iret" location on the stack
 	 *    o Continue processing the NMI
 	 *  If the variable is set or the previous stack is the NMI stack:
-	 *    o Modify the "copy" location to jump to the repeate_nmi
+	 *    o Modify the "iret" location to jump to the repeat_nmi
 	 *    o return back to the first NMI
 	 *
 	 * Now on exit of the first NMI, we first clear the stack variable
@@ -1426,32 +1425,151 @@ ENTRY(nmi)
 	 * a nested NMI that updated the copy interrupt stack frame, a
 	 * jump will be made to the repeat_nmi code that will handle the second
 	 * NMI.
+	 *
+	 * However, espfix prevents us from directly returning to userspace
+	 * with a single IRET instruction.  Similarly, IRET to user mode
+	 * can fault.  We therefore handle NMIs from user space like
+	 * other IST entries.
 	 */
 
 	/* Use %rdx as our temp variable throughout */
 	pushq_cfi %rdx
 	CFI_REL_OFFSET rdx, 0
 
+	testb	$3, CS-RIP+8(%rsp)
+	jz	.Lnmi_from_kernel
+
 	/*
-	 * If %cs was not the kernel segment, then the NMI triggered in user
-	 * space, which means it is definitely not nested.
+	 * NMI from user mode.  We need to run on the thread stack, but we
+	 * can't go through the normal entry paths: NMIs are masked, and
+	 * we don't want to enable interrupts, because then we'll end
+	 * up in an awkward situation in which IRQs are on but NMIs
+	 * are off.
 	 */
-	cmpl $__KERNEL_CS, 16(%rsp)
-	jne first_nmi
+
+	SWAPGS
+	cld
+	movq	%rsp, %rdx
+	movq	PER_CPU_VAR(kernel_stack), %rsp
+	pushq	5*8(%rdx)	/* pt_regs->ss */
+	pushq	4*8(%rdx)	/* pt_regs->rsp */
+	pushq	3*8(%rdx)	/* pt_regs->flags */
+	pushq	2*8(%rdx)	/* pt_regs->cs */
+	pushq	1*8(%rdx)	/* pt_regs->rip */
+	pushq   $-1		/* pt_regs->orig_ax */
+	pushq   %rdi		/* pt_regs->di */
+	pushq   %rsi		/* pt_regs->si */
+	pushq   (%rdx)		/* pt_regs->dx */
+	pushq   %rcx		/* pt_regs->cx */
+	pushq   %rax		/* pt_regs->ax */
+	pushq   %r8		/* pt_regs->r8 */
+	pushq   %r9		/* pt_regs->r9 */
+	pushq   %r10		/* pt_regs->r10 */
+	pushq   %r11		/* pt_regs->r11 */
+	pushq	%rbx		/* pt_regs->rbx */
+	pushq	%rbp		/* pt_regs->rbp */
+	pushq	%r12		/* pt_regs->r12 */
+	pushq	%r13		/* pt_regs->r13 */
+	pushq	%r14		/* pt_regs->r14 */
+	pushq	%r15		/* pt_regs->r15 */
 
 	/*
-	 * Check the special variable on the stack to see if NMIs are
-	 * executing.
+	 * At this point we no longer need to worry about stack damage
+	 * due to nesting -- we're on the normal thread stack and we're
+	 * done with the NMI stack.
+	 */
+	movq	%rsp, %rdi
+	movq	$-1, %rsi
+	call	do_nmi
+
+	/*
+	 * Return back to user mode.  We must *not* do the normal exit
+	 * work, because we don't want to enable interrupts.  Fortunately,
+	 * do_nmi doesn't modify pt_regs.
+	 */
+	SWAPGS
+	jmp	restore_c_regs_and_iret
+
+.Lnmi_from_kernel:
+	/*
+	 * Here's what our stack frame will look like:
+	 * +---------------------------------------------------------+
+	 * | original SS                                             |
+	 * | original Return RSP                                     |
+	 * | original RFLAGS                                         |
+	 * | original CS                                             |
+	 * | original RIP                                            |
+	 * +---------------------------------------------------------+
+	 * | temp storage for rdx                                    |
+	 * +---------------------------------------------------------+
+	 * | "NMI executing" variable                                |
+	 * +---------------------------------------------------------+
+	 * | iret SS          } Copied from "outermost" frame        |
+	 * | iret Return RSP  } on each loop iteration; overwritten  |
+	 * | iret RFLAGS      } by a nested NMI to force another     |
+	 * | iret CS          } iteration if needed.                 |
+	 * | iret RIP         }                                      |
+	 * +---------------------------------------------------------+
+	 * | outermost SS          } initialized in first_nmi;       |
+	 * | outermost Return RSP  } will not be changed before      |
+	 * | outermost RFLAGS      } NMI processing is done.         |
+	 * | outermost CS          } Copied to "iret" frame on each  |
+	 * | outermost RIP         } iteration.                      |
+	 * +---------------------------------------------------------+
+	 * | pt_regs                                                 |
+	 * +---------------------------------------------------------+
+	 *
+	 * The "original" frame is used by hardware.  Before re-enabling
+	 * NMIs, we need to be done with it, and we need to leave enough
+	 * space for the asm code here.
+	 *
+	 * We return by executing IRET while RSP points to the "iret" frame.
+	 * That will either return for real or it will loop back into NMI
+	 * processing.
+	 *
+	 * The "outermost" frame is copied to the "iret" frame on each
+	 * iteration of the loop, so each iteration starts with the "iret"
+	 * frame pointing to the final return target.
+	 */
+
+	/*
+	 * Determine whether we're a nested NMI.
+	 *
+	 * If we interrupted kernel code between repeat_nmi and
+	 * end_repeat_nmi, then we are a nested NMI.  We must not
+	 * modify the "iret" frame because it's being written by
+	 * the outer NMI.  That's okay; the outer NMI handler is
+	 * about to about to call do_nmi anyway, so we can just
+	 * resume the outer NMI.
+	 */
+
+	movq	$repeat_nmi, %rdx
+	cmpq	8(%rsp), %rdx
+	ja	1f
+	movq	$end_repeat_nmi, %rdx
+	cmpq	8(%rsp), %rdx
+	ja	nested_nmi_out
+1:
+
+	/*
+	 * Now check "NMI executing".  If it's set, then we're nested.
+	 * This will not detect if we interrupted an outer NMI just
+	 * before IRET.
 	 */
 	cmpl $1, -8(%rsp)
 	je nested_nmi
 
 	/*
-	 * Now test if the previous stack was an NMI stack.
-	 * We need the double check. We check the NMI stack to satisfy the
-	 * race when the first NMI clears the variable before returning.
-	 * We check the variable because the first NMI could be in a
-	 * breakpoint routine using a breakpoint stack.
+	 * Now test if the previous stack was an NMI stack.  This covers
+	 * the case where we interrupt an outer NMI after it clears
+	 * "NMI executing" but before IRET.  We need to be careful, though:
+	 * there is one case in which RSP could point to the NMI stack
+	 * despite there being no NMI active: naughty userspace controls
+	 * RSP at the very beginning of the SYSCALL targets.  We can
+	 * pull a fast one on naughty userspace, though: we program
+	 * SYSCALL to mask DF, so userspace cannot cause DF to be set
+	 * if it controls the kernel's RSP.  We set DF before we clear
+	 * "NMI executing".
 	 */
 	lea	6*8(%rsp), %rdx
 	/* Compare the NMI stack (rdx) with the stack we came from (4*8(%rsp)) */
@@ -1462,25 +1580,21 @@ ENTRY(nmi)
 	cmpq	%rdx, 4*8(%rsp)
 	/* If it is below the NMI stack, it is a normal NMI */
 	jb	first_nmi
-	/* Ah, it is within the NMI stack, treat it as nested */
+
+	/* Ah, it is within the NMI stack. */
+
+	testb	$(X86_EFLAGS_DF >> 8), (3*8 + 1)(%rsp)
+	jz	first_nmi	/* RSP was user controlled. */
+
+	/* This is a nested NMI. */
 
 	CFI_REMEMBER_STATE
 
 nested_nmi:
 	/*
-	 * Do nothing if we interrupted the fixup in repeat_nmi.
-	 * It's about to repeat the NMI handler, so we are fine
-	 * with ignoring this one.
+	 * Modify the "iret" frame to point to repeat_nmi, forcing another
+	 * iteration of NMI handling.
 	 */
-	movq $repeat_nmi, %rdx
-	cmpq 8(%rsp), %rdx
-	ja 1f
-	movq $end_repeat_nmi, %rdx
-	cmpq 8(%rsp), %rdx
-	ja nested_nmi_out
-
-1:
-	/* Set up the interrupted NMIs stack to jump to repeat_nmi */
 	leaq -1*8(%rsp), %rdx
 	movq %rdx, %rsp
 	CFI_ADJUST_CFA_OFFSET 1*8
@@ -1499,60 +1613,23 @@ nested_nmi_out:
 	popq_cfi %rdx
 	CFI_RESTORE rdx
 
-	/* No need to check faults here */
+	/* We are returning to kernel mode, so this cannot result in a fault. */
 	INTERRUPT_RETURN
 
 	CFI_RESTORE_STATE
 first_nmi:
-	/*
-	 * Because nested NMIs will use the pushed location that we
-	 * stored in rdx, we must keep that space available.
-	 * Here's what our stack frame will look like:
-	 * +-------------------------+
-	 * | original SS             |
-	 * | original Return RSP     |
-	 * | original RFLAGS         |
-	 * | original CS             |
-	 * | original RIP            |
-	 * +-------------------------+
-	 * | temp storage for rdx    |
-	 * +-------------------------+
-	 * | NMI executing variable  |
-	 * +-------------------------+
-	 * | copied SS               |
-	 * | copied Return RSP       |
-	 * | copied RFLAGS           |
-	 * | copied CS               |
-	 * | copied RIP              |
-	 * +-------------------------+
-	 * | Saved SS                |
-	 * | Saved Return RSP        |
-	 * | Saved RFLAGS            |
-	 * | Saved CS                |
-	 * | Saved RIP               |
-	 * +-------------------------+
-	 * | pt_regs                 |
-	 * +-------------------------+
-	 *
-	 * The saved stack frame is used to fix up the copied stack frame
-	 * that a nested NMI may change to make the interrupted NMI iret jump
-	 * to the repeat_nmi. The original stack frame and the temp storage
-	 * is also used by nested NMIs and can not be trusted on exit.
-	 */
-	/* Do not pop rdx, nested NMIs will corrupt that part of the stack */
+	/* Restore rdx. */
 	movq (%rsp), %rdx
 	CFI_RESTORE rdx
 
-	/* Set the NMI executing variable on the stack. */
+	/* Set "NMI executing" on the stack. */
 	pushq_cfi $1
 
-	/*
-	 * Leave room for the "copied" frame
-	 */
+	/* Leave room for the "iret" frame */
 	subq $(5*8), %rsp
 	CFI_ADJUST_CFA_OFFSET 5*8
 
-	/* Copy the stack frame to the Saved frame */
+	/* Copy the "original" frame to the "outermost" frame */
 	.rept 5
 	pushq_cfi 11*8(%rsp)
 	.endr
@@ -1560,6 +1637,7 @@ first_nmi:
 
 	/* Everything up to here is safe from nested NMIs */
 
+repeat_nmi:
 	/*
 	 * If there was a nested NMI, the first NMI's iret will return
 	 * here. But NMIs are still enabled and we can take another
@@ -1568,16 +1646,21 @@ first_nmi:
 	 * it will just return, as we are about to repeat an NMI anyway.
 	 * This makes it safe to copy to the stack frame that a nested
 	 * NMI will update.
-	 */
-repeat_nmi:
-	/*
-	 * Update the stack variable to say we are still in NMI (the update
-	 * is benign for the non-repeat case, where 1 was pushed just above
-	 * to this very stack slot).
+	 *
+	 * RSP is pointing to "outermost RIP".  gsbase is unknown, but, if
+	 * we're repeating an NMI, gsbase has the same value that it had on
+	 * the first iteration.  paranoid_entry will load the kernel
+	 * gsbase if needed before we call do_nmi.
+	 *
+	 * Set "NMI executing" in case we came back here via IRET.
 	 */
 	movq $1, 10*8(%rsp)
 
-	/* Make another copy, this one may be modified by nested NMIs */
+	/*
+	 * Copy the "outermost" frame to the "iret" frame.  NMIs that nest
+	 * here must not modify the "iret" frame while we're writing to
+	 * it or it will end up containing garbage.
+	 */
 	addq $(10*8), %rsp
 	CFI_ADJUST_CFA_OFFSET -10*8
 	.rept 5
@@ -1588,9 +1671,9 @@ repeat_nmi:
 end_repeat_nmi:
 
 	/*
-	 * Everything below this point can be preempted by a nested
-	 * NMI if the first NMI took an exception and reset our iret stack
-	 * so that we repeat another NMI.
+	 * Everything below this point can be preempted by a nested NMI.
+	 * If this happens, then the inner NMI will change the "iret"
+	 * frame to point back to repeat_nmi.
 	 */
 	pushq_cfi $-1		/* ORIG_RAX: no syscall to restart */
 	ALLOC_PT_GPREGS_ON_STACK
@@ -1605,29 +1688,11 @@ end_repeat_nmi:
 	call paranoid_entry
 	DEFAULT_FRAME 0
 
-	/*
-	 * Save off the CR2 register. If we take a page fault in the NMI then
-	 * it could corrupt the CR2 value. If the NMI preempts a page fault
-	 * handler before it was able to read the CR2 register, and then the
-	 * NMI itself takes a page fault, the page fault that was preempted
-	 * will read the information from the NMI page fault and not the
-	 * origin fault. Save it off and restore it if it changes.
-	 * Use the r12 callee-saved register.
-	 */
-	movq %cr2, %r12
-
 	/* paranoidentry do_nmi, 0; without TRACE_IRQS_OFF */
 	movq %rsp,%rdi
 	movq $-1,%rsi
 	call do_nmi
 
-	/* Did the NMI take a page fault? Restore cr2 if it did */
-	movq %cr2, %rcx
-	cmpq %rcx, %r12
-	je 1f
-	movq %r12, %cr2
-1:
-	
 	testl %ebx,%ebx				/* swapgs needed? */
 	jnz nmi_restore
 nmi_swapgs:
@@ -1635,12 +1700,27 @@ nmi_swapgs:
 nmi_restore:
 	RESTORE_EXTRA_REGS
 	RESTORE_C_REGS
-	/* Pop the extra iret frame at once */
+
+	/* Point RSP at the "iret" frame. */
 	REMOVE_PT_GPREGS_FROM_STACK 6*8
 
-	/* Clear the NMI executing stack variable */
-	movq $0, 5*8(%rsp)
-	jmp irq_return
+	/*
+	 * Clear "NMI executing".  Set DF first so that we can easily
+	 * distinguish the remaining code between here and IRET from
+	 * the SYSCALL entry and exit paths.  On a native kernel, we
+	 * could just inspect RIP, but, on paravirt kernels,
+	 * INTERRUPT_RETURN can translate into a jump into a
+	 * hypercall page.
+	 */
+	std
+	movq	$0, 5*8(%rsp)		/* clear "NMI executing" */
+
+	/*
+	 * INTERRUPT_RETURN reads the "iret" frame and exits the NMI
+	 * stack in a single instruction.  We are returning to kernel
+	 * mode, so this cannot result in a fault.
+	 */
+	INTERRUPT_RETURN
 	CFI_ENDPROC
 END(nmi)
 
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/x86/kernel/head_32.S linux-libre-4.1.6-gnu/arch/x86/kernel/head_32.S
--- linux-libre-4.1-gnu/arch/x86/kernel/head_32.S	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/x86/kernel/head_32.S	2015-08-16 23:52:51.000000000 -0400
@@ -62,9 +62,16 @@
 #define PAGE_TABLE_SIZE(pages) ((pages) / PTRS_PER_PGD)
 #endif
 
-/* Number of possible pages in the lowmem region */
-LOWMEM_PAGES = (((1<<32) - __PAGE_OFFSET) >> PAGE_SHIFT)
-	
+/*
+ * Number of possible pages in the lowmem region.
+ *
+ * We shift 2 by 31 instead of 1 by 32 to the left in order to avoid a
+ * gas warning about overflowing shift count when gas has been compiled
+ * with only a host target support using a 32-bit type for internal
+ * representation.
+ */
+LOWMEM_PAGES = (((2<<31) - __PAGE_OFFSET) >> PAGE_SHIFT)
+
 /* Enough space to fit pagetables for the low memory linear map */
 MAPPING_BEYOND_END = PAGE_TABLE_SIZE(LOWMEM_PAGES) << PAGE_SHIFT
 
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/x86/kernel/head64.c linux-libre-4.1.6-gnu/arch/x86/kernel/head64.c
--- linux-libre-4.1-gnu/arch/x86/kernel/head64.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/x86/kernel/head64.c	2015-08-16 23:52:51.000000000 -0400
@@ -161,11 +161,12 @@ asmlinkage __visible void __init x86_64_
 	/* Kill off the identity-map trampoline */
 	reset_early_page_tables();
 
-	kasan_map_early_shadow(early_level4_pgt);
-
-	/* clear bss before set_intr_gate with early_idt_handler */
 	clear_bss();
 
+	clear_page(init_level4_pgt);
+
+	kasan_early_init();
+
 	for (i = 0; i < NUM_EXCEPTION_VECTORS; i++)
 		set_intr_gate(i, early_idt_handler_array[i]);
 	load_idt((const struct desc_ptr *)&idt_descr);
@@ -177,12 +178,9 @@ asmlinkage __visible void __init x86_64_
 	 */
 	load_ucode_bsp();
 
-	clear_page(init_level4_pgt);
 	/* set init_level4_pgt kernel high mapping*/
 	init_level4_pgt[511] = early_level4_pgt[511];
 
-	kasan_map_early_shadow(init_level4_pgt);
-
 	x86_64_start_reservations(real_mode_data);
 }
 
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/x86/kernel/head_64.S linux-libre-4.1.6-gnu/arch/x86/kernel/head_64.S
--- linux-libre-4.1-gnu/arch/x86/kernel/head_64.S	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/x86/kernel/head_64.S	2015-08-16 23:52:51.000000000 -0400
@@ -516,38 +516,9 @@ ENTRY(phys_base)
 	/* This must match the first entry in level2_kernel_pgt */
 	.quad   0x0000000000000000
 
-#ifdef CONFIG_KASAN
-#define FILL(VAL, COUNT)				\
-	.rept (COUNT) ;					\
-	.quad	(VAL) ;					\
-	.endr
-
-NEXT_PAGE(kasan_zero_pte)
-	FILL(kasan_zero_page - __START_KERNEL_map + _KERNPG_TABLE, 512)
-NEXT_PAGE(kasan_zero_pmd)
-	FILL(kasan_zero_pte - __START_KERNEL_map + _KERNPG_TABLE, 512)
-NEXT_PAGE(kasan_zero_pud)
-	FILL(kasan_zero_pmd - __START_KERNEL_map + _KERNPG_TABLE, 512)
-
-#undef FILL
-#endif
-
-
 #include "../../x86/xen/xen-head.S"
 	
 	__PAGE_ALIGNED_BSS
 NEXT_PAGE(empty_zero_page)
 	.skip PAGE_SIZE
 
-#ifdef CONFIG_KASAN
-/*
- * This page used as early shadow. We don't use empty_zero_page
- * at early stages, stack instrumentation could write some garbage
- * to this page.
- * Latter we reuse it as zero shadow for large ranges of memory
- * that allowed to access, but not instrumented by kasan
- * (vmalloc/vmemmap ...).
- */
-NEXT_PAGE(kasan_zero_page)
-	.skip PAGE_SIZE
-#endif
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/x86/kernel/nmi.c linux-libre-4.1.6-gnu/arch/x86/kernel/nmi.c
--- linux-libre-4.1-gnu/arch/x86/kernel/nmi.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/x86/kernel/nmi.c	2015-08-16 23:52:51.000000000 -0400
@@ -408,15 +408,15 @@ static void default_do_nmi(struct pt_reg
 NOKPROBE_SYMBOL(default_do_nmi);
 
 /*
- * NMIs can hit breakpoints which will cause it to lose its
- * NMI context with the CPU when the breakpoint does an iret.
- */
-#ifdef CONFIG_X86_32
-/*
- * For i386, NMIs use the same stack as the kernel, and we can
- * add a workaround to the iret problem in C (preventing nested
- * NMIs if an NMI takes a trap). Simply have 3 states the NMI
- * can be in:
+ * NMIs can page fault or hit breakpoints which will cause it to lose
+ * its NMI context with the CPU when the breakpoint or page fault does an IRET.
+ *
+ * As a result, NMIs can nest if NMIs get unmasked due an IRET during
+ * NMI processing.  On x86_64, the asm glue protects us from nested NMIs
+ * if the outer NMI came from kernel mode, but we can still nest if the
+ * outer NMI came from user mode.
+ *
+ * To handle these nested NMIs, we have three states:
  *
  *  1) not running
  *  2) executing
@@ -430,15 +430,14 @@ NOKPROBE_SYMBOL(default_do_nmi);
  * (Note, the latch is binary, thus multiple NMIs triggering,
  *  when one is running, are ignored. Only one NMI is restarted.)
  *
- * If an NMI hits a breakpoint that executes an iret, another
- * NMI can preempt it. We do not want to allow this new NMI
- * to run, but we want to execute it when the first one finishes.
- * We set the state to "latched", and the exit of the first NMI will
- * perform a dec_return, if the result is zero (NOT_RUNNING), then
- * it will simply exit the NMI handler. If not, the dec_return
- * would have set the state to NMI_EXECUTING (what we want it to
- * be when we are running). In this case, we simply jump back
- * to rerun the NMI handler again, and restart the 'latched' NMI.
+ * If an NMI executes an iret, another NMI can preempt it. We do not
+ * want to allow this new NMI to run, but we want to execute it when the
+ * first one finishes.  We set the state to "latched", and the exit of
+ * the first NMI will perform a dec_return, if the result is zero
+ * (NOT_RUNNING), then it will simply exit the NMI handler. If not, the
+ * dec_return would have set the state to NMI_EXECUTING (what we want it
+ * to be when we are running). In this case, we simply jump back to
+ * rerun the NMI handler again, and restart the 'latched' NMI.
  *
  * No trap (breakpoint or page fault) should be hit before nmi_restart,
  * thus there is no race between the first check of state for NOT_RUNNING
@@ -461,49 +460,36 @@ enum nmi_states {
 static DEFINE_PER_CPU(enum nmi_states, nmi_state);
 static DEFINE_PER_CPU(unsigned long, nmi_cr2);
 
-#define nmi_nesting_preprocess(regs)					\
-	do {								\
-		if (this_cpu_read(nmi_state) != NMI_NOT_RUNNING) {	\
-			this_cpu_write(nmi_state, NMI_LATCHED);		\
-			return;						\
-		}							\
-		this_cpu_write(nmi_state, NMI_EXECUTING);		\
-		this_cpu_write(nmi_cr2, read_cr2());			\
-	} while (0);							\
-	nmi_restart:
-
-#define nmi_nesting_postprocess()					\
-	do {								\
-		if (unlikely(this_cpu_read(nmi_cr2) != read_cr2()))	\
-			write_cr2(this_cpu_read(nmi_cr2));		\
-		if (this_cpu_dec_return(nmi_state))			\
-			goto nmi_restart;				\
-	} while (0)
-#else /* x86_64 */
+#ifdef CONFIG_X86_64
 /*
- * In x86_64 things are a bit more difficult. This has the same problem
- * where an NMI hitting a breakpoint that calls iret will remove the
- * NMI context, allowing a nested NMI to enter. What makes this more
- * difficult is that both NMIs and breakpoints have their own stack.
- * When a new NMI or breakpoint is executed, the stack is set to a fixed
- * point. If an NMI is nested, it will have its stack set at that same
- * fixed address that the first NMI had, and will start corrupting the
- * stack. This is handled in entry_64.S, but the same problem exists with
- * the breakpoint stack.
+ * In x86_64, we need to handle breakpoint -> NMI -> breakpoint.  Without
+ * some care, the inner breakpoint will clobber the outer breakpoint's
+ * stack.
  *
- * If a breakpoint is being processed, and the debug stack is being used,
- * if an NMI comes in and also hits a breakpoint, the stack pointer
- * will be set to the same fixed address as the breakpoint that was
- * interrupted, causing that stack to be corrupted. To handle this case,
- * check if the stack that was interrupted is the debug stack, and if
- * so, change the IDT so that new breakpoints will use the current stack
- * and not switch to the fixed address. On return of the NMI, switch back
- * to the original IDT.
+ * If a breakpoint is being processed, and the debug stack is being
+ * used, if an NMI comes in and also hits a breakpoint, the stack
+ * pointer will be set to the same fixed address as the breakpoint that
+ * was interrupted, causing that stack to be corrupted. To handle this
+ * case, check if the stack that was interrupted is the debug stack, and
+ * if so, change the IDT so that new breakpoints will use the current
+ * stack and not switch to the fixed address. On return of the NMI,
+ * switch back to the original IDT.
  */
 static DEFINE_PER_CPU(int, update_debug_stack);
+#endif
 
-static inline void nmi_nesting_preprocess(struct pt_regs *regs)
+dotraplinkage notrace void
+do_nmi(struct pt_regs *regs, long error_code)
 {
+	if (this_cpu_read(nmi_state) != NMI_NOT_RUNNING) {
+		this_cpu_write(nmi_state, NMI_LATCHED);
+		return;
+	}
+	this_cpu_write(nmi_state, NMI_EXECUTING);
+	this_cpu_write(nmi_cr2, read_cr2());
+nmi_restart:
+
+#ifdef CONFIG_X86_64
 	/*
 	 * If we interrupted a breakpoint, it is possible that
 	 * the nmi handler will have breakpoints too. We need to
@@ -514,22 +500,8 @@ static inline void nmi_nesting_preproces
 		debug_stack_set_zero();
 		this_cpu_write(update_debug_stack, 1);
 	}
-}
-
-static inline void nmi_nesting_postprocess(void)
-{
-	if (unlikely(this_cpu_read(update_debug_stack))) {
-		debug_stack_reset();
-		this_cpu_write(update_debug_stack, 0);
-	}
-}
 #endif
 
-dotraplinkage notrace void
-do_nmi(struct pt_regs *regs, long error_code)
-{
-	nmi_nesting_preprocess(regs);
-
 	nmi_enter();
 
 	inc_irq_stat(__nmi_count);
@@ -539,8 +511,17 @@ do_nmi(struct pt_regs *regs, long error_
 
 	nmi_exit();
 
-	/* On i386, may loop back to preprocess */
-	nmi_nesting_postprocess();
+#ifdef CONFIG_X86_64
+	if (unlikely(this_cpu_read(update_debug_stack))) {
+		debug_stack_reset();
+		this_cpu_write(update_debug_stack, 0);
+	}
+#endif
+
+	if (unlikely(this_cpu_read(nmi_cr2) != read_cr2()))
+		write_cr2(this_cpu_read(nmi_cr2));
+	if (this_cpu_dec_return(nmi_state))
+		goto nmi_restart;
 }
 NOKPROBE_SYMBOL(do_nmi);
 
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/x86/kvm/i8254.c linux-libre-4.1.6-gnu/arch/x86/kvm/i8254.c
--- linux-libre-4.1-gnu/arch/x86/kvm/i8254.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/x86/kvm/i8254.c	2015-08-16 23:52:51.000000000 -0400
@@ -305,7 +305,7 @@ static void pit_do_work(struct kthread_w
 		 * LVT0 to NMI delivery. Other PIC interrupts are just sent to
 		 * VCPU0, and only if its LVT0 is in EXTINT mode.
 		 */
-		if (kvm->arch.vapics_in_nmi_mode > 0)
+		if (atomic_read(&kvm->arch.vapics_in_nmi_mode) > 0)
 			kvm_for_each_vcpu(i, vcpu, kvm)
 				kvm_apic_nmi_wd_deliver(vcpu);
 	}
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/x86/kvm/lapic.c linux-libre-4.1.6-gnu/arch/x86/kvm/lapic.c
--- linux-libre-4.1-gnu/arch/x86/kvm/lapic.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/x86/kvm/lapic.c	2015-08-16 23:52:51.000000000 -0400
@@ -1250,10 +1250,10 @@ static void apic_manage_nmi_watchdog(str
 		if (!nmi_wd_enabled) {
 			apic_debug("Receive NMI setting on APIC_LVT0 "
 				   "for cpu %d\n", apic->vcpu->vcpu_id);
-			apic->vcpu->kvm->arch.vapics_in_nmi_mode++;
+			atomic_inc(&apic->vcpu->kvm->arch.vapics_in_nmi_mode);
 		}
 	} else if (nmi_wd_enabled)
-		apic->vcpu->kvm->arch.vapics_in_nmi_mode--;
+		atomic_dec(&apic->vcpu->kvm->arch.vapics_in_nmi_mode);
 }
 
 static int apic_reg_write(struct kvm_lapic *apic, u32 reg, u32 val)
@@ -1808,6 +1808,7 @@ void kvm_apic_post_state_restore(struct
 	apic_update_ppr(apic);
 	hrtimer_cancel(&apic->lapic_timer.timer);
 	apic_update_lvtt(apic);
+	apic_manage_nmi_watchdog(apic, kvm_apic_get_reg(apic, APIC_LVT0));
 	update_divide_count(apic);
 	start_apic_timer(apic);
 	apic->irr_pending = true;
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/x86/kvm/lapic.h linux-libre-4.1.6-gnu/arch/x86/kvm/lapic.h
--- linux-libre-4.1-gnu/arch/x86/kvm/lapic.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/x86/kvm/lapic.h	2015-08-16 23:52:51.000000000 -0400
@@ -150,7 +150,7 @@ static inline bool kvm_apic_vid_enabled(
 
 static inline bool kvm_apic_has_events(struct kvm_vcpu *vcpu)
 {
-	return vcpu->arch.apic->pending_events;
+	return kvm_vcpu_has_lapic(vcpu) && vcpu->arch.apic->pending_events;
 }
 
 bool kvm_apic_pending_eoi(struct kvm_vcpu *vcpu, int vector);
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/x86/kvm/svm.c linux-libre-4.1.6-gnu/arch/x86/kvm/svm.c
--- linux-libre-4.1-gnu/arch/x86/kvm/svm.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/x86/kvm/svm.c	2015-08-16 23:52:51.000000000 -0400
@@ -511,8 +511,10 @@ static void skip_emulated_instruction(st
 {
 	struct vcpu_svm *svm = to_svm(vcpu);
 
-	if (svm->vmcb->control.next_rip != 0)
+	if (svm->vmcb->control.next_rip != 0) {
+		WARN_ON(!static_cpu_has(X86_FEATURE_NRIPS));
 		svm->next_rip = svm->vmcb->control.next_rip;
+	}
 
 	if (!svm->next_rip) {
 		if (emulate_instruction(vcpu, EMULTYPE_SKIP) !=
@@ -4317,7 +4319,9 @@ static int svm_check_intercept(struct kv
 		break;
 	}
 
-	vmcb->control.next_rip  = info->next_rip;
+	/* TODO: Advertise NRIPS to guest hypervisor unconditionally */
+	if (static_cpu_has(X86_FEATURE_NRIPS))
+		vmcb->control.next_rip  = info->next_rip;
 	vmcb->control.exit_code = icpt_info.exit_code;
 	vmexit = nested_svm_exit_handled(svm);
 
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/x86/mm/kasan_init_64.c linux-libre-4.1.6-gnu/arch/x86/mm/kasan_init_64.c
--- linux-libre-4.1-gnu/arch/x86/mm/kasan_init_64.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/x86/mm/kasan_init_64.c	2015-08-16 23:52:51.000000000 -0400
@@ -11,7 +11,19 @@
 extern pgd_t early_level4_pgt[PTRS_PER_PGD];
 extern struct range pfn_mapped[E820_X_MAX];
 
-extern unsigned char kasan_zero_page[PAGE_SIZE];
+static pud_t kasan_zero_pud[PTRS_PER_PUD] __page_aligned_bss;
+static pmd_t kasan_zero_pmd[PTRS_PER_PMD] __page_aligned_bss;
+static pte_t kasan_zero_pte[PTRS_PER_PTE] __page_aligned_bss;
+
+/*
+ * This page used as early shadow. We don't use empty_zero_page
+ * at early stages, stack instrumentation could write some garbage
+ * to this page.
+ * Latter we reuse it as zero shadow for large ranges of memory
+ * that allowed to access, but not instrumented by kasan
+ * (vmalloc/vmemmap ...).
+ */
+static unsigned char kasan_zero_page[PAGE_SIZE] __page_aligned_bss;
 
 static int __init map_range(struct range *range)
 {
@@ -36,7 +48,7 @@ static void __init clear_pgds(unsigned l
 		pgd_clear(pgd_offset_k(start));
 }
 
-void __init kasan_map_early_shadow(pgd_t *pgd)
+static void __init kasan_map_early_shadow(pgd_t *pgd)
 {
 	int i;
 	unsigned long start = KASAN_SHADOW_START;
@@ -73,7 +85,7 @@ static int __init zero_pmd_populate(pud_
 	while (IS_ALIGNED(addr, PMD_SIZE) && addr + PMD_SIZE <= end) {
 		WARN_ON(!pmd_none(*pmd));
 		set_pmd(pmd, __pmd(__pa_nodebug(kasan_zero_pte)
-					| __PAGE_KERNEL_RO));
+					| _KERNPG_TABLE));
 		addr += PMD_SIZE;
 		pmd = pmd_offset(pud, addr);
 	}
@@ -99,7 +111,7 @@ static int __init zero_pud_populate(pgd_
 	while (IS_ALIGNED(addr, PUD_SIZE) && addr + PUD_SIZE <= end) {
 		WARN_ON(!pud_none(*pud));
 		set_pud(pud, __pud(__pa_nodebug(kasan_zero_pmd)
-					| __PAGE_KERNEL_RO));
+					| _KERNPG_TABLE));
 		addr += PUD_SIZE;
 		pud = pud_offset(pgd, addr);
 	}
@@ -124,7 +136,7 @@ static int __init zero_pgd_populate(unsi
 	while (IS_ALIGNED(addr, PGDIR_SIZE) && addr + PGDIR_SIZE <= end) {
 		WARN_ON(!pgd_none(*pgd));
 		set_pgd(pgd, __pgd(__pa_nodebug(kasan_zero_pud)
-					| __PAGE_KERNEL_RO));
+					| _KERNPG_TABLE));
 		addr += PGDIR_SIZE;
 		pgd = pgd_offset_k(addr);
 	}
@@ -166,6 +178,26 @@ static struct notifier_block kasan_die_n
 };
 #endif
 
+void __init kasan_early_init(void)
+{
+	int i;
+	pteval_t pte_val = __pa_nodebug(kasan_zero_page) | __PAGE_KERNEL;
+	pmdval_t pmd_val = __pa_nodebug(kasan_zero_pte) | _KERNPG_TABLE;
+	pudval_t pud_val = __pa_nodebug(kasan_zero_pmd) | _KERNPG_TABLE;
+
+	for (i = 0; i < PTRS_PER_PTE; i++)
+		kasan_zero_pte[i] = __pte(pte_val);
+
+	for (i = 0; i < PTRS_PER_PMD; i++)
+		kasan_zero_pmd[i] = __pmd(pmd_val);
+
+	for (i = 0; i < PTRS_PER_PUD; i++)
+		kasan_zero_pud[i] = __pud(pud_val);
+
+	kasan_map_early_shadow(early_level4_pgt);
+	kasan_map_early_shadow(init_level4_pgt);
+}
+
 void __init kasan_init(void)
 {
 	int i;
@@ -176,6 +208,7 @@ void __init kasan_init(void)
 
 	memcpy(early_level4_pgt, init_level4_pgt, sizeof(early_level4_pgt));
 	load_cr3(early_level4_pgt);
+	__flush_tlb_all();
 
 	clear_pgds(KASAN_SHADOW_START, KASAN_SHADOW_END);
 
@@ -202,5 +235,6 @@ void __init kasan_init(void)
 	memset(kasan_zero_page, 0, PAGE_SIZE);
 
 	load_cr3(init_level4_pgt);
+	__flush_tlb_all();
 	init_task.kasan_depth = 0;
 }
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/x86/mm/mmap.c linux-libre-4.1.6-gnu/arch/x86/mm/mmap.c
--- linux-libre-4.1-gnu/arch/x86/mm/mmap.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/x86/mm/mmap.c	2015-08-16 23:52:51.000000000 -0400
@@ -126,3 +126,10 @@ void arch_pick_mmap_layout(struct mm_str
 		mm->get_unmapped_area = arch_get_unmapped_area_topdown;
 	}
 }
+
+const char *arch_vma_name(struct vm_area_struct *vma)
+{
+	if (vma->vm_flags & VM_MPX)
+		return "[mpx]";
+	return NULL;
+}
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/x86/mm/mpx.c linux-libre-4.1.6-gnu/arch/x86/mm/mpx.c
--- linux-libre-4.1-gnu/arch/x86/mm/mpx.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/x86/mm/mpx.c	2015-08-16 23:52:51.000000000 -0400
@@ -18,26 +18,9 @@
 #include <asm/processor.h>
 #include <asm/fpu-internal.h>
 
-static const char *mpx_mapping_name(struct vm_area_struct *vma)
-{
-	return "[mpx]";
-}
-
-static struct vm_operations_struct mpx_vma_ops = {
-	.name = mpx_mapping_name,
-};
-
-static int is_mpx_vma(struct vm_area_struct *vma)
-{
-	return (vma->vm_ops == &mpx_vma_ops);
-}
-
 /*
  * This is really a simplified "vm_mmap". it only handles MPX
  * bounds tables (the bounds directory is user-allocated).
- *
- * Later on, we use the vma->vm_ops to uniquely identify these
- * VMAs.
  */
 static unsigned long mpx_mmap(unsigned long len)
 {
@@ -83,7 +66,6 @@ static unsigned long mpx_mmap(unsigned l
 		ret = -ENOMEM;
 		goto out;
 	}
-	vma->vm_ops = &mpx_vma_ops;
 
 	if (vm_flags & VM_LOCKED) {
 		up_write(&mm->mmap_sem);
@@ -661,7 +643,7 @@ static int zap_bt_entries(struct mm_stru
 		 * so stop immediately and return an error.  This
 		 * probably results in a SIGSEGV.
 		 */
-		if (!is_mpx_vma(vma))
+		if (!(vma->vm_flags & VM_MPX))
 			return -EINVAL;
 
 		len = min(vma->vm_end, end) - addr;
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/x86/mm/tlb.c linux-libre-4.1.6-gnu/arch/x86/mm/tlb.c
--- linux-libre-4.1-gnu/arch/x86/mm/tlb.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/x86/mm/tlb.c	2015-08-16 23:52:51.000000000 -0400
@@ -117,7 +117,7 @@ static void flush_tlb_func(void *info)
 		} else {
 			unsigned long addr;
 			unsigned long nr_pages =
-				f->flush_end - f->flush_start / PAGE_SIZE;
+				(f->flush_end - f->flush_start) / PAGE_SIZE;
 			addr = f->flush_start;
 			while (addr < f->flush_end) {
 				__flush_tlb_single(addr);
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/x86/pci/acpi.c linux-libre-4.1.6-gnu/arch/x86/pci/acpi.c
--- linux-libre-4.1-gnu/arch/x86/pci/acpi.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/x86/pci/acpi.c	2015-08-16 23:52:51.000000000 -0400
@@ -81,6 +81,17 @@ static const struct dmi_system_id pci_cr
 			DMI_MATCH(DMI_BIOS_VENDOR, "Phoenix Technologies, LTD"),
 		},
 	},
+	/* https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/931368 */
+	/* https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1033299 */
+	{
+		.callback = set_use_crs,
+		.ident = "Foxconn K8M890-8237A",
+		.matches = {
+			DMI_MATCH(DMI_BOARD_VENDOR, "Foxconn"),
+			DMI_MATCH(DMI_BOARD_NAME, "K8M890-8237A"),
+			DMI_MATCH(DMI_BIOS_VENDOR, "Phoenix Technologies, LTD"),
+		},
+	},
 
 	/* Now for the blacklist.. */
 
@@ -121,8 +132,10 @@ void __init pci_acpi_crs_quirks(void)
 {
 	int year;
 
-	if (dmi_get_date(DMI_BIOS_DATE, &year, NULL, NULL) && year < 2008)
-		pci_use_crs = false;
+	if (dmi_get_date(DMI_BIOS_DATE, &year, NULL, NULL) && year < 2008) {
+		if (iomem_resource.end <= 0xffffffff)
+			pci_use_crs = false;
+	}
 
 	dmi_check_system(pci_crs_quirks);
 
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/x86/platform/efi/efi.c linux-libre-4.1.6-gnu/arch/x86/platform/efi/efi.c
--- linux-libre-4.1-gnu/arch/x86/platform/efi/efi.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/x86/platform/efi/efi.c	2015-08-16 23:52:51.000000000 -0400
@@ -946,6 +946,11 @@ u64 efi_mem_attributes(unsigned long phy
 
 static int __init arch_parse_efi_cmdline(char *str)
 {
+	if (!str) {
+		pr_warn("need at least one option\n");
+		return -EINVAL;
+	}
+
 	if (parse_option_str(str, "old_map"))
 		set_bit(EFI_OLD_MEMMAP, &efi.flags);
 	if (parse_option_str(str, "debug"))
diff -druNp --no-dereference linux-libre-4.1-gnu/arch/x86/xen/enlighten.c linux-libre-4.1.6-gnu/arch/x86/xen/enlighten.c
--- linux-libre-4.1-gnu/arch/x86/xen/enlighten.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/arch/x86/xen/enlighten.c	2015-08-16 23:52:51.000000000 -0400
@@ -483,6 +483,7 @@ static void set_aliased_prot(void *v, pg
 	pte_t pte;
 	unsigned long pfn;
 	struct page *page;
+	unsigned char dummy;
 
 	ptep = lookup_address((unsigned long)v, &level);
 	BUG_ON(ptep == NULL);
@@ -492,6 +493,32 @@ static void set_aliased_prot(void *v, pg
 
 	pte = pfn_pte(pfn, prot);
 
+	/*
+	 * Careful: update_va_mapping() will fail if the virtual address
+	 * we're poking isn't populated in the page tables.  We don't
+	 * need to worry about the direct map (that's always in the page
+	 * tables), but we need to be careful about vmap space.  In
+	 * particular, the top level page table can lazily propagate
+	 * entries between processes, so if we've switched mms since we
+	 * vmapped the target in the first place, we might not have the
+	 * top-level page table entry populated.
+	 *
+	 * We disable preemption because we want the same mm active when
+	 * we probe the target and when we issue the hypercall.  We'll
+	 * have the same nominal mm, but if we're a kernel thread, lazy
+	 * mm dropping could change our pgd.
+	 *
+	 * Out of an abundance of caution, this uses __get_user() to fault
+	 * in the target address just in case there's some obscure case
+	 * in which the target address isn't readable.
+	 */
+
+	preempt_disable();
+
+	pagefault_disable();	/* Avoid warnings due to being atomic. */
+	__get_user(dummy, (unsigned char __user __force *)v);
+	pagefault_enable();
+
 	if (HYPERVISOR_update_va_mapping((unsigned long)v, pte, 0))
 		BUG();
 
@@ -503,6 +530,8 @@ static void set_aliased_prot(void *v, pg
 				BUG();
 	} else
 		kmap_flush_unused();
+
+	preempt_enable();
 }
 
 static void xen_alloc_ldt(struct desc_struct *ldt, unsigned entries)
@@ -510,6 +539,17 @@ static void xen_alloc_ldt(struct desc_st
 	const unsigned entries_per_page = PAGE_SIZE / LDT_ENTRY_SIZE;
 	int i;
 
+	/*
+	 * We need to mark the all aliases of the LDT pages RO.  We
+	 * don't need to call vm_flush_aliases(), though, since that's
+	 * only responsible for flushing aliases out the TLBs, not the
+	 * page tables, and Xen will flush the TLB for us if needed.
+	 *
+	 * To avoid confusing future readers: none of this is necessary
+	 * to load the LDT.  The hypervisor only checks this when the
+	 * LDT is faulted in due to subsequent descriptor access.
+	 */
+
 	for(i = 0; i < entries; i += entries_per_page)
 		set_aliased_prot(ldt + i, PAGE_KERNEL_RO);
 }
diff -druNp --no-dereference linux-libre-4.1-gnu/block/bio.c linux-libre-4.1.6-gnu/block/bio.c
--- linux-libre-4.1-gnu/block/bio.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/block/bio.c	2015-08-16 23:52:51.000000000 -0400
@@ -1814,8 +1814,9 @@ EXPORT_SYMBOL(bio_endio_nodec);
  * Allocates and returns a new bio which represents @sectors from the start of
  * @bio, and updates @bio to represent the remaining sectors.
  *
- * The newly allocated bio will point to @bio's bi_io_vec; it is the caller's
- * responsibility to ensure that @bio is not freed before the split.
+ * Unless this is a discard request the newly allocated bio will point
+ * to @bio's bi_io_vec; it is the caller's responsibility to ensure that
+ * @bio is not freed before the split.
  */
 struct bio *bio_split(struct bio *bio, int sectors,
 		      gfp_t gfp, struct bio_set *bs)
@@ -1825,7 +1826,15 @@ struct bio *bio_split(struct bio *bio, i
 	BUG_ON(sectors <= 0);
 	BUG_ON(sectors >= bio_sectors(bio));
 
-	split = bio_clone_fast(bio, gfp, bs);
+	/*
+	 * Discards need a mutable bio_vec to accommodate the payload
+	 * required by the DSM TRIM and UNMAP commands.
+	 */
+	if (bio->bi_rw & REQ_DISCARD)
+		split = bio_clone_bioset(bio, gfp, bs);
+	else
+		split = bio_clone_fast(bio, gfp, bs);
+
 	if (!split)
 		return NULL;
 
diff -druNp --no-dereference linux-libre-4.1-gnu/block/bio-integrity.c linux-libre-4.1.6-gnu/block/bio-integrity.c
--- linux-libre-4.1-gnu/block/bio-integrity.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/block/bio-integrity.c	2015-08-16 23:52:51.000000000 -0400
@@ -51,7 +51,7 @@ struct bio_integrity_payload *bio_integr
 	unsigned long idx = BIO_POOL_NONE;
 	unsigned inline_vecs;
 
-	if (!bs) {
+	if (!bs || !bs->bio_integrity_pool) {
 		bip = kmalloc(sizeof(struct bio_integrity_payload) +
 			      sizeof(struct bio_vec) * nr_vecs, gfp_mask);
 		inline_vecs = nr_vecs;
@@ -104,7 +104,7 @@ void bio_integrity_free(struct bio *bio)
 		kfree(page_address(bip->bip_vec->bv_page) +
 		      bip->bip_vec->bv_offset);
 
-	if (bs) {
+	if (bs && bs->bio_integrity_pool) {
 		if (bip->bip_slab != BIO_POOL_NONE)
 			bvec_free(bs->bvec_integrity_pool, bip->bip_vec,
 				  bip->bip_slab);
diff -druNp --no-dereference linux-libre-4.1-gnu/block/blk-cgroup.c linux-libre-4.1.6-gnu/block/blk-cgroup.c
--- linux-libre-4.1-gnu/block/blk-cgroup.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/block/blk-cgroup.c	2015-08-16 23:52:51.000000000 -0400
@@ -716,8 +716,12 @@ int blkg_conf_prep(struct blkcg *blkcg,
 		return -EINVAL;
 
 	disk = get_gendisk(MKDEV(major, minor), &part);
-	if (!disk || part)
+	if (!disk)
+		return -EINVAL;
+	if (part) {
+		put_disk(disk);
 		return -EINVAL;
+	}
 
 	rcu_read_lock();
 	spin_lock_irq(disk->queue->queue_lock);
diff -druNp --no-dereference linux-libre-4.1-gnu/block/blk-mq.c linux-libre-4.1.6-gnu/block/blk-mq.c
--- linux-libre-4.1-gnu/block/blk-mq.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/block/blk-mq.c	2015-08-16 23:52:51.000000000 -0400
@@ -1968,7 +1968,7 @@ struct request_queue *blk_mq_init_alloca
 		goto err_hctxs;
 
 	setup_timer(&q->timeout, blk_mq_rq_timer, (unsigned long) q);
-	blk_queue_rq_timeout(q, set->timeout ? set->timeout : 30000);
+	blk_queue_rq_timeout(q, set->timeout ? set->timeout : 30 * HZ);
 
 	q->nr_queues = nr_cpu_ids;
 	q->nr_hw_queues = set->nr_hw_queues;
diff -druNp --no-dereference linux-libre-4.1-gnu/crypto/asymmetric_keys/asymmetric_keys.h linux-libre-4.1.6-gnu/crypto/asymmetric_keys/asymmetric_keys.h
--- linux-libre-4.1-gnu/crypto/asymmetric_keys/asymmetric_keys.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/crypto/asymmetric_keys/asymmetric_keys.h	2015-08-16 23:52:51.000000000 -0400
@@ -11,6 +11,9 @@
 
 extern struct asymmetric_key_id *asymmetric_key_hex_to_key_id(const char *id);
 
+extern int __asymmetric_key_hex_to_key_id(const char *id,
+					  struct asymmetric_key_id *match_id,
+					  size_t hexlen);
 static inline
 const struct asymmetric_key_ids *asymmetric_key_ids(const struct key *key)
 {
diff -druNp --no-dereference linux-libre-4.1-gnu/crypto/asymmetric_keys/asymmetric_type.c linux-libre-4.1.6-gnu/crypto/asymmetric_keys/asymmetric_type.c
--- linux-libre-4.1-gnu/crypto/asymmetric_keys/asymmetric_type.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/crypto/asymmetric_keys/asymmetric_type.c	2015-08-16 23:52:51.000000000 -0400
@@ -104,6 +104,15 @@ static bool asymmetric_match_key_ids(
 	return false;
 }
 
+/* helper function can be called directly with pre-allocated memory */
+inline int __asymmetric_key_hex_to_key_id(const char *id,
+				   struct asymmetric_key_id *match_id,
+				   size_t hexlen)
+{
+	match_id->len = hexlen;
+	return hex2bin(match_id->data, id, hexlen);
+}
+
 /**
  * asymmetric_key_hex_to_key_id - Convert a hex string into a key ID.
  * @id: The ID as a hex string.
@@ -111,21 +120,20 @@ static bool asymmetric_match_key_ids(
 struct asymmetric_key_id *asymmetric_key_hex_to_key_id(const char *id)
 {
 	struct asymmetric_key_id *match_id;
-	size_t hexlen;
+	size_t asciihexlen;
 	int ret;
 
 	if (!*id)
 		return ERR_PTR(-EINVAL);
-	hexlen = strlen(id);
-	if (hexlen & 1)
+	asciihexlen = strlen(id);
+	if (asciihexlen & 1)
 		return ERR_PTR(-EINVAL);
 
-	match_id = kmalloc(sizeof(struct asymmetric_key_id) + hexlen / 2,
+	match_id = kmalloc(sizeof(struct asymmetric_key_id) + asciihexlen / 2,
 			   GFP_KERNEL);
 	if (!match_id)
 		return ERR_PTR(-ENOMEM);
-	match_id->len = hexlen / 2;
-	ret = hex2bin(match_id->data, id, hexlen / 2);
+	ret = __asymmetric_key_hex_to_key_id(id, match_id, asciihexlen / 2);
 	if (ret < 0) {
 		kfree(match_id);
 		return ERR_PTR(-EINVAL);
diff -druNp --no-dereference linux-libre-4.1-gnu/crypto/asymmetric_keys/x509_public_key.c linux-libre-4.1.6-gnu/crypto/asymmetric_keys/x509_public_key.c
--- linux-libre-4.1-gnu/crypto/asymmetric_keys/x509_public_key.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/crypto/asymmetric_keys/x509_public_key.c	2015-08-16 23:52:51.000000000 -0400
@@ -28,17 +28,30 @@ static bool use_builtin_keys;
 static struct asymmetric_key_id *ca_keyid;
 
 #ifndef MODULE
+static struct {
+	struct asymmetric_key_id id;
+	unsigned char data[10];
+} cakey;
+
 static int __init ca_keys_setup(char *str)
 {
 	if (!str)		/* default system keyring */
 		return 1;
 
 	if (strncmp(str, "id:", 3) == 0) {
-		struct asymmetric_key_id *p;
-		p = asymmetric_key_hex_to_key_id(str + 3);
-		if (p == ERR_PTR(-EINVAL))
-			pr_err("Unparsable hex string in ca_keys\n");
-		else if (!IS_ERR(p))
+		struct asymmetric_key_id *p = &cakey.id;
+		size_t hexlen = (strlen(str) - 3) / 2;
+		int ret;
+
+		if (hexlen == 0 || hexlen > sizeof(cakey.data)) {
+			pr_err("Missing or invalid ca_keys id\n");
+			return 1;
+		}
+
+		ret = __asymmetric_key_hex_to_key_id(str + 3, p, hexlen);
+		if (ret < 0)
+			pr_err("Unparsable ca_keys id hex string\n");
+		else
 			ca_keyid = p;	/* owner key 'id:xxxxxx' */
 	} else if (strcmp(str, "builtin") == 0) {
 		use_builtin_keys = true;
diff -druNp --no-dereference linux-libre-4.1-gnu/Documentation/ABI/testing/ima_policy linux-libre-4.1.6-gnu/Documentation/ABI/testing/ima_policy
--- linux-libre-4.1-gnu/Documentation/ABI/testing/ima_policy	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/Documentation/ABI/testing/ima_policy	2015-08-16 23:52:51.000000000 -0400
@@ -20,17 +20,19 @@ Description:
 		action: measure | dont_measure | appraise | dont_appraise | audit
 		condition:= base | lsm  [option]
 			base:	[[func=] [mask=] [fsmagic=] [fsuuid=] [uid=]
-				 [fowner]]
+				[euid=] [fowner=]]
 			lsm:	[[subj_user=] [subj_role=] [subj_type=]
 				 [obj_user=] [obj_role=] [obj_type=]]
 			option:	[[appraise_type=]] [permit_directio]
 
 		base: 	func:= [BPRM_CHECK][MMAP_CHECK][FILE_CHECK][MODULE_CHECK]
 				[FIRMWARE_CHECK]
-			mask:= [MAY_READ] [MAY_WRITE] [MAY_APPEND] [MAY_EXEC]
+			mask:= [[^]MAY_READ] [[^]MAY_WRITE] [[^]MAY_APPEND]
+			       [[^]MAY_EXEC]
 			fsmagic:= hex value
 			fsuuid:= file system UUID (e.g 8bcbe394-4f13-4144-be8e-5aa9ea2ce2f6)
 			uid:= decimal value
+			euid:= decimal value
 			fowner:=decimal value
 		lsm:  	are LSM specific
 		option:	appraise_type:= [imasig]
@@ -49,11 +51,25 @@ Description:
 			dont_measure fsmagic=0x01021994
 			dont_appraise fsmagic=0x01021994
 			# RAMFS_MAGIC
-			dont_measure fsmagic=0x858458f6
 			dont_appraise fsmagic=0x858458f6
+			# DEVPTS_SUPER_MAGIC
+			dont_measure fsmagic=0x1cd1
+			dont_appraise fsmagic=0x1cd1
+			# BINFMTFS_MAGIC
+			dont_measure fsmagic=0x42494e4d
+			dont_appraise fsmagic=0x42494e4d
 			# SECURITYFS_MAGIC
 			dont_measure fsmagic=0x73636673
 			dont_appraise fsmagic=0x73636673
+			# SELINUX_MAGIC
+			dont_measure fsmagic=0xf97cff8c
+			dont_appraise fsmagic=0xf97cff8c
+			# CGROUP_SUPER_MAGIC
+			dont_measure fsmagic=0x27e0eb
+			dont_appraise fsmagic=0x27e0eb
+			# NSFS_MAGIC
+			dont_measure fsmagic=0x6e736673
+			dont_appraise fsmagic=0x6e736673
 
 			measure func=BPRM_CHECK
 			measure func=FILE_MMAP mask=MAY_EXEC
@@ -70,10 +86,6 @@ Description:
 		Examples of LSM specific definitions:
 
 		SELinux:
-			# SELINUX_MAGIC
-			dont_measure fsmagic=0xf97cff8c
-			dont_appraise fsmagic=0xf97cff8c
-
 			dont_measure obj_type=var_log_t
 			dont_appraise obj_type=var_log_t
 			dont_measure obj_type=auditd_log_t
diff -druNp --no-dereference linux-libre-4.1-gnu/Documentation/ABI/testing/sysfs-ata linux-libre-4.1.6-gnu/Documentation/ABI/testing/sysfs-ata
--- linux-libre-4.1-gnu/Documentation/ABI/testing/sysfs-ata	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/Documentation/ABI/testing/sysfs-ata	2015-08-16 23:52:51.000000000 -0400
@@ -90,6 +90,17 @@ gscr
 	130:	SATA_PMP_GSCR_SII_GPIO
 	Only valid if the device is a PM.
 
+trim
+
+	Shows the DSM TRIM mode currently used by the device. Valid
+	values are:
+	unsupported:		Drive does not support DSM TRIM
+	unqueued:		Drive supports unqueued DSM TRIM only
+	queued:			Drive supports queued DSM TRIM
+	forced_unqueued:	Drive's unqueued DSM support is known to be
+				buggy and only unqueued TRIM commands
+				are sent
+
 spdn_cnt
 
 	Number of time libata decided to lower the speed of link due to errors.
diff -druNp --no-dereference linux-libre-4.1-gnu/Documentation/ABI/testing/sysfs-bus-iio linux-libre-4.1.6-gnu/Documentation/ABI/testing/sysfs-bus-iio
--- linux-libre-4.1-gnu/Documentation/ABI/testing/sysfs-bus-iio	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/Documentation/ABI/testing/sysfs-bus-iio	2015-08-16 23:52:51.000000000 -0400
@@ -1165,10 +1165,8 @@ Description:
 		object is near the sensor, usually be observing
 		reflectivity of infrared or ultrasound emitted.
 		Often these sensors are unit less and as such conversion
-		to SI units is not possible.  Where it is, the units should
-		be meters.  If such a conversion is not possible, the reported
-		values should behave in the same way as a distance, i.e. lower
-		values indicate something is closer to the sensor.
+		to SI units is not possible. Higher proximity measurements
+		indicate closer objects, and vice versa.
 
 What:		/sys/.../iio:deviceX/in_illuminance_input
 What:		/sys/.../iio:deviceX/in_illuminance_raw
diff -druNp --no-dereference linux-libre-4.1-gnu/Documentation/devicetree/bindings/clock/keystone-pll.txt linux-libre-4.1.6-gnu/Documentation/devicetree/bindings/clock/keystone-pll.txt
--- linux-libre-4.1-gnu/Documentation/devicetree/bindings/clock/keystone-pll.txt	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/Documentation/devicetree/bindings/clock/keystone-pll.txt	2015-08-16 23:52:51.000000000 -0400
@@ -15,8 +15,8 @@ Required properties:
 - compatible : shall be "ti,keystone,main-pll-clock" or "ti,keystone,pll-clock"
 - clocks : parent clock phandle
 - reg - pll control0 and pll multipler registers
-- reg-names : control and multiplier. The multiplier is applicable only for
-		main pll clock
+- reg-names : control, multiplier and post-divider. The multiplier and
+		post-divider registers are applicable only for main pll clock
 - fixed-postdiv : fixed post divider value. If absent, use clkod register bits
 		for postdiv
 
@@ -25,8 +25,8 @@ Example:
 		#clock-cells = <0>;
 		compatible = "ti,keystone,main-pll-clock";
 		clocks = <&refclksys>;
-		reg = <0x02620350 4>, <0x02310110 4>;
-		reg-names = "control", "multiplier";
+		reg = <0x02620350 4>, <0x02310110 4>, <0x02310108 4>;
+		reg-names = "control", "multiplier", "post-divider";
 		fixed-postdiv = <2>;
 	};
 
diff -druNp --no-dereference linux-libre-4.1-gnu/Documentation/devicetree/bindings/net/marvell-armada-370-neta.txt linux-libre-4.1.6-gnu/Documentation/devicetree/bindings/net/marvell-armada-370-neta.txt
--- linux-libre-4.1-gnu/Documentation/devicetree/bindings/net/marvell-armada-370-neta.txt	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/Documentation/devicetree/bindings/net/marvell-armada-370-neta.txt	2015-08-16 23:52:51.000000000 -0400
@@ -1,7 +1,7 @@
 * Marvell Armada 370 / Armada XP Ethernet Controller (NETA)
 
 Required properties:
-- compatible: should be "marvell,armada-370-neta".
+- compatible: "marvell,armada-370-neta" or "marvell,armada-xp-neta".
 - reg: address and length of the register set for the device.
 - interrupts: interrupt for the device
 - phy: See ethernet.txt file in the same directory.
diff -druNp --no-dereference linux-libre-4.1-gnu/Documentation/devicetree/bindings/pinctrl/marvell,armada-370-pinctrl.txt linux-libre-4.1.6-gnu/Documentation/devicetree/bindings/pinctrl/marvell,armada-370-pinctrl.txt
--- linux-libre-4.1-gnu/Documentation/devicetree/bindings/pinctrl/marvell,armada-370-pinctrl.txt	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/Documentation/devicetree/bindings/pinctrl/marvell,armada-370-pinctrl.txt	2015-08-16 23:52:51.000000000 -0400
@@ -92,5 +92,5 @@ mpp61         61       gpo, dev(wen1), u
 mpp62         62       gpio, dev(a2), uart1(cts), tdm(drx), pcie(clkreq0),
                        audio(mclk), uart0(cts)
 mpp63         63       gpo, spi0(sck), tclk
-mpp64         64       gpio, spi0(miso), spi0-1(cs1)
-mpp65         65       gpio, spi0(mosi), spi0-1(cs2)
+mpp64         64       gpio, spi0(miso), spi0(cs1)
+mpp65         65       gpio, spi0(mosi), spi0(cs2)
diff -druNp --no-dereference linux-libre-4.1-gnu/Documentation/devicetree/bindings/pinctrl/marvell,armada-375-pinctrl.txt linux-libre-4.1.6-gnu/Documentation/devicetree/bindings/pinctrl/marvell,armada-375-pinctrl.txt
--- linux-libre-4.1-gnu/Documentation/devicetree/bindings/pinctrl/marvell,armada-375-pinctrl.txt	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/Documentation/devicetree/bindings/pinctrl/marvell,armada-375-pinctrl.txt	2015-08-16 23:52:51.000000000 -0400
@@ -22,8 +22,8 @@ mpp5          5        gpio, dev(ad7), s
 mpp6          6        gpio, dev(ad0), led(p1), audio(rclk)
 mpp7          7        gpio, dev(ad1), ptp(clk), led(p2), audio(extclk)
 mpp8          8        gpio, dev (bootcs), spi0(cs0), spi1(cs0)
-mpp9          9        gpio, nf(wen), spi0(sck), spi1(sck)
-mpp10        10        gpio, nf(ren), dram(vttctrl), led(c1)
+mpp9          9        gpio, spi0(sck), spi1(sck), nand(we)
+mpp10        10        gpio, dram(vttctrl), led(c1), nand(re)
 mpp11        11        gpio, dev(a0), led(c2), audio(sdo)
 mpp12        12        gpio, dev(a1), audio(bclk)
 mpp13        13        gpio, dev(readyn), pcie0(rstoutn), pcie1(rstoutn)
diff -druNp --no-dereference linux-libre-4.1-gnu/Documentation/devicetree/bindings/pinctrl/marvell,armada-38x-pinctrl.txt linux-libre-4.1.6-gnu/Documentation/devicetree/bindings/pinctrl/marvell,armada-38x-pinctrl.txt
--- linux-libre-4.1-gnu/Documentation/devicetree/bindings/pinctrl/marvell,armada-38x-pinctrl.txt	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/Documentation/devicetree/bindings/pinctrl/marvell,armada-38x-pinctrl.txt	2015-08-16 23:52:51.000000000 -0400
@@ -27,15 +27,15 @@ mpp8          8        gpio, ge0(txd1),
 mpp9          9        gpio, ge0(txd2), dev(ad11)
 mpp10         10       gpio, ge0(txd3), dev(ad12)
 mpp11         11       gpio, ge0(txctl), dev(ad13)
-mpp12         12       gpio, ge0(rxd0), pcie0(rstout), pcie1(rstout) [1], spi0(cs1), dev(ad14)
-mpp13         13       gpio, ge0(rxd1), pcie0(clkreq), pcie1(clkreq) [1], spi0(cs2), dev(ad15)
-mpp14         14       gpio, ge0(rxd2), ptp(clk), m(vtt_ctrl), spi0(cs3), dev(wen1)
-mpp15         15       gpio, ge0(rxd3), ge(mdc slave), pcie0(rstout), spi0(mosi), pcie1(rstout) [1]
-mpp16         16       gpio, ge0(rxctl), ge(mdio slave), m(decc_err), spi0(miso), pcie0(clkreq)
+mpp12         12       gpio, ge0(rxd0), pcie0(rstout), spi0(cs1), dev(ad14), pcie3(clkreq)
+mpp13         13       gpio, ge0(rxd1), pcie0(clkreq), pcie1(clkreq) [1], spi0(cs2), dev(ad15), pcie2(clkreq)
+mpp14         14       gpio, ge0(rxd2), ptp(clk), m(vtt_ctrl), spi0(cs3), dev(wen1), pcie3(clkreq)
+mpp15         15       gpio, ge0(rxd3), ge(mdc slave), pcie0(rstout), spi0(mosi)
+mpp16         16       gpio, ge0(rxctl), ge(mdio slave), m(decc_err), spi0(miso), pcie0(clkreq), pcie1(clkreq) [1]
 mpp17         17       gpio, ge0(rxclk), ptp(clk), ua1(rxd), spi0(sck), sata1(prsnt)
-mpp18         18       gpio, ge0(rxerr), ptp(trig_gen), ua1(txd), spi0(cs0), pcie1(rstout) [1]
-mpp19         19       gpio, ge0(col), ptp(event_req), pcie0(clkreq), sata1(prsnt), ua0(cts)
-mpp20         20       gpio, ge0(txclk), ptp(clk), pcie1(rstout) [1], sata0(prsnt), ua0(rts)
+mpp18         18       gpio, ge0(rxerr), ptp(trig_gen), ua1(txd), spi0(cs0)
+mpp19         19       gpio, ge0(col), ptp(event_req), ge0(txerr), sata1(prsnt), ua0(cts)
+mpp20         20       gpio, ge0(txclk), ptp(clk), sata0(prsnt), ua0(rts)
 mpp21         21       gpio, spi0(cs1), ge1(rxd0), sata0(prsnt), sd0(cmd), dev(bootcs)
 mpp22         22       gpio, spi0(mosi), dev(ad0)
 mpp23         23       gpio, spi0(sck), dev(ad2)
@@ -58,23 +58,23 @@ mpp39         39       gpio, i2c1(sck),
 mpp40         40       gpio, i2c1(sda), ge1(rxd3), ua0(rts), sd0(d2), dev(ad6)
 mpp41         41       gpio, ua1(rxd), ge1(rxctl), ua0(cts), spi1(cs3), dev(burst/last)
 mpp42         42       gpio, ua1(txd), ua0(rts), dev(ad7)
-mpp43         43       gpio, pcie0(clkreq), m(vtt_ctrl), m(decc_err), pcie0(rstout), dev(clkout)
-mpp44         44       gpio, sata0(prsnt), sata1(prsnt), sata2(prsnt) [2], sata3(prsnt) [3], pcie0(rstout)
-mpp45         45       gpio, ref(clk_out0), pcie0(rstout), pcie1(rstout) [1], pcie2(rstout), pcie3(rstout)
-mpp46         46       gpio, ref(clk_out1), pcie0(rstout), pcie1(rstout) [1], pcie2(rstout), pcie3(rstout)
-mpp47         47       gpio, sata0(prsnt), sata1(prsnt), sata2(prsnt) [2], spi1(cs2), sata3(prsnt) [2]
-mpp48         48       gpio, sata0(prsnt), m(vtt_ctrl), tdm2c(pclk), audio(mclk), sd0(d4)
-mpp49         49       gpio, sata2(prsnt) [2], sata3(prsnt) [2], tdm2c(fsync), audio(lrclk), sd0(d5)
-mpp50         50       gpio, pcie0(rstout), pcie1(rstout) [1], tdm2c(drx), audio(extclk), sd0(cmd)
+mpp43         43       gpio, pcie0(clkreq), m(vtt_ctrl), m(decc_err), spi1(cs2), dev(clkout)
+mpp44         44       gpio, sata0(prsnt), sata1(prsnt), sata2(prsnt) [2], sata3(prsnt) [3]
+mpp45         45       gpio, ref(clk_out0), pcie0(rstout)
+mpp46         46       gpio, ref(clk_out1), pcie0(rstout)
+mpp47         47       gpio, sata0(prsnt), sata1(prsnt), sata2(prsnt) [2], sata3(prsnt) [2]
+mpp48         48       gpio, sata0(prsnt), m(vtt_ctrl), tdm2c(pclk), audio(mclk), sd0(d4), pcie0(clkreq)
+mpp49         49       gpio, sata2(prsnt) [2], sata3(prsnt) [2], tdm2c(fsync), audio(lrclk), sd0(d5), pcie1(clkreq)
+mpp50         50       gpio, pcie0(rstout), tdm2c(drx), audio(extclk), sd0(cmd)
 mpp51         51       gpio, tdm2c(dtx), audio(sdo), m(decc_err)
-mpp52         52       gpio, pcie0(rstout), pcie1(rstout) [1], tdm2c(intn), audio(sdi), sd0(d6)
+mpp52         52       gpio, pcie0(rstout), tdm2c(intn), audio(sdi), sd0(d6)
 mpp53         53       gpio, sata1(prsnt), sata0(prsnt), tdm2c(rstn), audio(bclk), sd0(d7)
-mpp54         54       gpio, sata0(prsnt), sata1(prsnt), pcie0(rstout), pcie1(rstout) [1], sd0(d3)
+mpp54         54       gpio, sata0(prsnt), sata1(prsnt), pcie0(rstout), ge0(txerr), sd0(d3)
 mpp55         55       gpio, ua1(cts), ge(mdio), pcie1(clkreq) [1], spi1(cs1), sd0(d0)
 mpp56         56       gpio, ua1(rts), ge(mdc), m(decc_err), spi1(mosi)
 mpp57         57       gpio, spi1(sck), sd0(clk)
 mpp58         58       gpio, pcie1(clkreq) [1], i2c1(sck), pcie2(clkreq), spi1(miso), sd0(d1)
-mpp59         59       gpio, pcie0(rstout), i2c1(sda), pcie1(rstout) [1], spi1(cs0), sd0(d2)
+mpp59         59       gpio, pcie0(rstout), i2c1(sda), spi1(cs0), sd0(d2)
 
 [1]: only available on 88F6820 and 88F6828
 [2]: only available on 88F6828
diff -druNp --no-dereference linux-libre-4.1-gnu/Documentation/devicetree/bindings/pinctrl/marvell,armada-xp-pinctrl.txt linux-libre-4.1.6-gnu/Documentation/devicetree/bindings/pinctrl/marvell,armada-xp-pinctrl.txt
--- linux-libre-4.1-gnu/Documentation/devicetree/bindings/pinctrl/marvell,armada-xp-pinctrl.txt	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/Documentation/devicetree/bindings/pinctrl/marvell,armada-xp-pinctrl.txt	2015-08-16 23:52:51.000000000 -0400
@@ -42,15 +42,15 @@ mpp20         20       gpio, ge0(rxd4),
 mpp21         21       gpio, ge0(rxd5), ge1(rxd3), lcd(d21), mem(bat)
 mpp22         22       gpio, ge0(rxd6), ge1(rxctl), lcd(d22), sata0(prsnt)
 mpp23         23       gpio, ge0(rxd7), ge1(rxclk), lcd(d23), sata1(prsnt)
-mpp24         24       gpio, lcd(hsync), sata1(prsnt), nf(bootcs-re), tdm(rst)
-mpp25         25       gpio, lcd(vsync), sata0(prsnt), nf(bootcs-we), tdm(pclk)
-mpp26         26       gpio, lcd(clk), tdm(fsync), vdd(cpu1-pd)
+mpp24         24       gpio, lcd(hsync), sata1(prsnt), tdm(rst)
+mpp25         25       gpio, lcd(vsync), sata0(prsnt), tdm(pclk)
+mpp26         26       gpio, lcd(clk), tdm(fsync)
 mpp27         27       gpio, lcd(e), tdm(dtx), ptp(trig)
 mpp28         28       gpio, lcd(pwm), tdm(drx), ptp(evreq)
-mpp29         29       gpio, lcd(ref-clk), tdm(int0), ptp(clk), vdd(cpu0-pd)
+mpp29         29       gpio, lcd(ref-clk), tdm(int0), ptp(clk)
 mpp30         30       gpio, tdm(int1), sd0(clk)
-mpp31         31       gpio, tdm(int2), sd0(cmd), vdd(cpu0-pd)
-mpp32         32       gpio, tdm(int3), sd0(d0), vdd(cpu1-pd)
+mpp31         31       gpio, tdm(int2), sd0(cmd)
+mpp32         32       gpio, tdm(int3), sd0(d0)
 mpp33         33       gpio, tdm(int4), sd0(d1), mem(bat)
 mpp34         34       gpio, tdm(int5), sd0(d2), sata0(prsnt)
 mpp35         35       gpio, tdm(int6), sd0(d3), sata1(prsnt)
@@ -58,21 +58,18 @@ mpp36         36       gpio, spi(mosi)
 mpp37         37       gpio, spi(miso)
 mpp38         38       gpio, spi(sck)
 mpp39         39       gpio, spi(cs0)
-mpp40         40       gpio, spi(cs1), uart2(cts), lcd(vga-hsync), vdd(cpu1-pd),
-                       pcie(clkreq0)
+mpp40         40       gpio, spi(cs1), uart2(cts), lcd(vga-hsync), pcie(clkreq0)
 mpp41         41       gpio, spi(cs2), uart2(rts), lcd(vga-vsync), sata1(prsnt),
                        pcie(clkreq1)
-mpp42         42       gpio, uart2(rxd), uart0(cts), tdm(int7), tdm-1(timer),
-                       vdd(cpu0-pd)
-mpp43         43       gpio, uart2(txd), uart0(rts), spi(cs3), pcie(rstout),
-                       vdd(cpu2-3-pd){1}
+mpp42         42       gpio, uart2(rxd), uart0(cts), tdm(int7), tdm-1(timer)
+mpp43         43       gpio, uart2(txd), uart0(rts), spi(cs3), pcie(rstout)
 mpp44         44       gpio, uart2(cts), uart3(rxd), spi(cs4), pcie(clkreq2),
                        mem(bat)
 mpp45         45       gpio, uart2(rts), uart3(txd), spi(cs5), sata1(prsnt)
 mpp46         46       gpio, uart3(rts), uart1(rts), spi(cs6), sata0(prsnt)
 mpp47         47       gpio, uart3(cts), uart1(cts), spi(cs7), pcie(clkreq3),
                        ref(clkout)
-mpp48         48       gpio, tclk, dev(burst/last)
+mpp48         48       gpio, dev(clkout), dev(burst/last)
 
 * Marvell Armada XP (mv78260 and mv78460 only)
 
@@ -84,9 +81,9 @@ mpp51         51       gpio, dev(ad16)
 mpp52         52       gpio, dev(ad17)
 mpp53         53       gpio, dev(ad18)
 mpp54         54       gpio, dev(ad19)
-mpp55         55       gpio, dev(ad20), vdd(cpu0-pd)
-mpp56         56       gpio, dev(ad21), vdd(cpu1-pd)
-mpp57         57       gpio, dev(ad22), vdd(cpu2-3-pd){1}
+mpp55         55       gpio, dev(ad20)
+mpp56         56       gpio, dev(ad21)
+mpp57         57       gpio, dev(ad22)
 mpp58         58       gpio, dev(ad23)
 mpp59         59       gpio, dev(ad24)
 mpp60         60       gpio, dev(ad25)
@@ -96,6 +93,3 @@ mpp63         63       gpio, dev(ad28)
 mpp64         64       gpio, dev(ad29)
 mpp65         65       gpio, dev(ad30)
 mpp66         66       gpio, dev(ad31)
-
-Notes:
-* {1} vdd(cpu2-3-pd) only available on mv78460.
diff -druNp --no-dereference linux-libre-4.1-gnu/Documentation/devicetree/bindings/spi/spi_pl022.txt linux-libre-4.1.6-gnu/Documentation/devicetree/bindings/spi/spi_pl022.txt
--- linux-libre-4.1-gnu/Documentation/devicetree/bindings/spi/spi_pl022.txt	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/Documentation/devicetree/bindings/spi/spi_pl022.txt	2015-08-16 23:52:51.000000000 -0400
@@ -4,9 +4,9 @@ Required properties:
 - compatible : "arm,pl022", "arm,primecell"
 - reg : Offset and length of the register set for the device
 - interrupts : Should contain SPI controller interrupt
+- num-cs : total number of chipselects
 
 Optional properties:
-- num-cs : total number of chipselects
 - cs-gpios : should specify GPIOs used for chipselects.
   The gpios will be referred to as reg = <index> in the SPI child nodes.
   If unspecified, a single SPI device without a chip select can be used.
diff -druNp --no-dereference linux-libre-4.1-gnu/Documentation/devicetree/bindings/usb/atmel-usb.txt linux-libre-4.1.6-gnu/Documentation/devicetree/bindings/usb/atmel-usb.txt
--- linux-libre-4.1-gnu/Documentation/devicetree/bindings/usb/atmel-usb.txt	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/Documentation/devicetree/bindings/usb/atmel-usb.txt	2015-08-16 23:52:51.000000000 -0400
@@ -60,9 +60,9 @@ Atmel High-Speed USB device controller
 
 Required properties:
  - compatible: Should be one of the following
-	       "at91sam9rl-udc"
-	       "at91sam9g45-udc"
-	       "sama5d3-udc"
+	       "atmel,at91sam9rl-udc"
+	       "atmel,at91sam9g45-udc"
+	       "atmel,sama5d3-udc"
  - reg: Address and length of the register set for the device
  - interrupts: Should contain usba interrupt
  - ep childnode: To specify the number of endpoints and their properties.
diff -druNp --no-dereference linux-libre-4.1-gnu/Documentation/DMA-API-HOWTO.txt linux-libre-4.1.6-gnu/Documentation/DMA-API-HOWTO.txt
--- linux-libre-4.1-gnu/Documentation/DMA-API-HOWTO.txt	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/Documentation/DMA-API-HOWTO.txt	2015-08-16 23:52:51.000000000 -0400
@@ -25,13 +25,18 @@ physical addresses.  These are the addre
 address is not directly useful to a driver; it must use ioremap() to map
 the space and produce a virtual address.
 
-I/O devices use a third kind of address: a "bus address" or "DMA address".
-If a device has registers at an MMIO address, or if it performs DMA to read
-or write system memory, the addresses used by the device are bus addresses.
-In some systems, bus addresses are identical to CPU physical addresses, but
-in general they are not.  IOMMUs and host bridges can produce arbitrary
+I/O devices use a third kind of address: a "bus address".  If a device has
+registers at an MMIO address, or if it performs DMA to read or write system
+memory, the addresses used by the device are bus addresses.  In some
+systems, bus addresses are identical to CPU physical addresses, but in
+general they are not.  IOMMUs and host bridges can produce arbitrary
 mappings between physical and bus addresses.
 
+From a device's point of view, DMA uses the bus address space, but it may
+be restricted to a subset of that space.  For example, even if a system
+supports 64-bit addresses for main memory and PCI BARs, it may use an IOMMU
+so devices only need to use 32-bit DMA addresses.
+
 Here's a picture and some examples:
 
                CPU                  CPU                  Bus
@@ -72,11 +77,11 @@ can use virtual address X to access the
 cannot because DMA doesn't go through the CPU virtual memory system.
 
 In some simple systems, the device can do DMA directly to physical address
-Y.  But in many others, there is IOMMU hardware that translates bus
+Y.  But in many others, there is IOMMU hardware that translates DMA
 addresses to physical addresses, e.g., it translates Z to Y.  This is part
 of the reason for the DMA API: the driver can give a virtual address X to
 an interface like dma_map_single(), which sets up any required IOMMU
-mapping and returns the bus address Z.  The driver then tells the device to
+mapping and returns the DMA address Z.  The driver then tells the device to
 do DMA to Z, and the IOMMU maps it to the buffer at address Y in system
 RAM.
 
@@ -98,7 +103,7 @@ First of all, you should make sure
 #include <linux/dma-mapping.h>
 
 is in your driver, which provides the definition of dma_addr_t.  This type
-can hold any valid DMA or bus address for the platform and should be used
+can hold any valid DMA address for the platform and should be used
 everywhere you hold a DMA address returned from the DMA mapping functions.
 
 			 What memory is DMA'able?
@@ -316,7 +321,7 @@ There are two types of DMA mappings:
   Think of "consistent" as "synchronous" or "coherent".
 
   The current default is to return consistent memory in the low 32
-  bits of the bus space.  However, for future compatibility you should
+  bits of the DMA space.  However, for future compatibility you should
   set the consistent mask even if this default is fine for your
   driver.
 
@@ -403,7 +408,7 @@ dma_alloc_coherent() returns two values:
 can use to access it from the CPU and dma_handle which you pass to the
 card.
 
-The CPU virtual address and the DMA bus address are both
+The CPU virtual address and the DMA address are both
 guaranteed to be aligned to the smallest PAGE_SIZE order which
 is greater than or equal to the requested size.  This invariant
 exists (for example) to guarantee that if you allocate a chunk
@@ -645,8 +650,8 @@ PLEASE NOTE:  The 'nents' argument to th
               dma_map_sg call.
 
 Every dma_map_{single,sg}() call should have its dma_unmap_{single,sg}()
-counterpart, because the bus address space is a shared resource and
-you could render the machine unusable by consuming all bus addresses.
+counterpart, because the DMA address space is a shared resource and
+you could render the machine unusable by consuming all DMA addresses.
 
 If you need to use the same streaming DMA region multiple times and touch
 the data in between the DMA transfers, the buffer needs to be synced
diff -druNp --no-dereference linux-libre-4.1-gnu/Documentation/DMA-API.txt linux-libre-4.1.6-gnu/Documentation/DMA-API.txt
--- linux-libre-4.1-gnu/Documentation/DMA-API.txt	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/Documentation/DMA-API.txt	2015-08-16 23:52:51.000000000 -0400
@@ -18,10 +18,10 @@ Part I - dma_ API
 To get the dma_ API, you must #include <linux/dma-mapping.h>.  This
 provides dma_addr_t and the interfaces described below.
 
-A dma_addr_t can hold any valid DMA or bus address for the platform.  It
-can be given to a device to use as a DMA source or target.  A CPU cannot
-reference a dma_addr_t directly because there may be translation between
-its physical address space and the bus address space.
+A dma_addr_t can hold any valid DMA address for the platform.  It can be
+given to a device to use as a DMA source or target.  A CPU cannot reference
+a dma_addr_t directly because there may be translation between its physical
+address space and the DMA address space.
 
 Part Ia - Using large DMA-coherent buffers
 ------------------------------------------
@@ -42,7 +42,7 @@ It returns a pointer to the allocated re
 address space) or NULL if the allocation failed.
 
 It also returns a <dma_handle> which may be cast to an unsigned integer the
-same width as the bus and given to the device as the bus address base of
+same width as the bus and given to the device as the DMA address base of
 the region.
 
 Note: consistent memory can be expensive on some platforms, and the
@@ -193,7 +193,7 @@ dma_map_single(struct device *dev, void
 		      enum dma_data_direction direction)
 
 Maps a piece of processor virtual memory so it can be accessed by the
-device and returns the bus address of the memory.
+device and returns the DMA address of the memory.
 
 The direction for both APIs may be converted freely by casting.
 However the dma_ API uses a strongly typed enumerator for its
@@ -212,20 +212,20 @@ contiguous piece of memory.  For this re
 this API should be obtained from sources which guarantee it to be
 physically contiguous (like kmalloc).
 
-Further, the bus address of the memory must be within the
+Further, the DMA address of the memory must be within the
 dma_mask of the device (the dma_mask is a bit mask of the
-addressable region for the device, i.e., if the bus address of
-the memory ANDed with the dma_mask is still equal to the bus
+addressable region for the device, i.e., if the DMA address of
+the memory ANDed with the dma_mask is still equal to the DMA
 address, then the device can perform DMA to the memory).  To
 ensure that the memory allocated by kmalloc is within the dma_mask,
 the driver may specify various platform-dependent flags to restrict
-the bus address range of the allocation (e.g., on x86, GFP_DMA
-guarantees to be within the first 16MB of available bus addresses,
+the DMA address range of the allocation (e.g., on x86, GFP_DMA
+guarantees to be within the first 16MB of available DMA addresses,
 as required by ISA devices).
 
 Note also that the above constraints on physical contiguity and
 dma_mask may not apply if the platform has an IOMMU (a device which
-maps an I/O bus address to a physical memory address).  However, to be
+maps an I/O DMA address to a physical memory address).  However, to be
 portable, device driver writers may *not* assume that such an IOMMU
 exists.
 
@@ -296,7 +296,7 @@ reduce current DMA mapping usage or dela
 	dma_map_sg(struct device *dev, struct scatterlist *sg,
 		int nents, enum dma_data_direction direction)
 
-Returns: the number of bus address segments mapped (this may be shorter
+Returns: the number of DMA address segments mapped (this may be shorter
 than <nents> passed in if some elements of the scatter/gather list are
 physically or virtually adjacent and an IOMMU maps them with a single
 entry).
@@ -340,7 +340,7 @@ must be the same as those and passed in
 API.
 
 Note: <nents> must be the number you passed in, *not* the number of
-bus address entries returned.
+DMA address entries returned.
 
 void
 dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle, size_t size,
@@ -507,7 +507,7 @@ it's asked for coherent memory for this
 phys_addr is the CPU physical address to which the memory is currently
 assigned (this will be ioremapped so the CPU can access the region).
 
-device_addr is the bus address the device needs to be programmed
+device_addr is the DMA address the device needs to be programmed
 with to actually address this memory (this will be handed out as the
 dma_addr_t in dma_alloc_coherent()).
 
diff -druNp --no-dereference linux-libre-4.1-gnu/Documentation/hwmon/nct7904 linux-libre-4.1.6-gnu/Documentation/hwmon/nct7904
--- linux-libre-4.1-gnu/Documentation/hwmon/nct7904	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/Documentation/hwmon/nct7904	2015-08-16 23:52:51.000000000 -0400
@@ -35,11 +35,11 @@ temp1_input		Local temperature (1/1000 d
 temp[2-9]_input		CPU temperatures (1/1000 degree,
 			0.125 degree resolution)
 
-fan[1-4]_mode		R/W, 0/1 for manual or SmartFan mode
+pwm[1-4]_enable		R/W, 1/2 for manual or SmartFan mode
 			Setting SmartFan mode is supported only if it has been
 			previously configured by BIOS (or configuration EEPROM)
 
-fan[1-4]_pwm		R/O in SmartFan mode, R/W in manual control mode
+pwm[1-4]		R/O in SmartFan mode, R/W in manual control mode
 
 The driver checks sensor control registers and does not export the sensors
 that are not enabled. Anyway, a sensor that is enabled may actually be not
diff -druNp --no-dereference linux-libre-4.1-gnu/Documentation/input/alps.txt linux-libre-4.1.6-gnu/Documentation/input/alps.txt
--- linux-libre-4.1-gnu/Documentation/input/alps.txt	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/Documentation/input/alps.txt	2015-08-16 23:52:51.000000000 -0400
@@ -119,8 +119,10 @@ ALPS Absolute Mode - Protocol Version 2
  byte 5:  0   z6   z5   z4   z3   z2   z1   z0
 
 Protocol Version 2 DualPoint devices send standard PS/2 mouse packets for
-the DualPoint Stick. For non interleaved dualpoint devices the pointingstick
-buttons get reported separately in the PSM, PSR and PSL bits.
+the DualPoint Stick. The M, R and L bits signal the combined status of both
+the pointingstick and touchpad buttons, except for Dell dualpoint devices
+where the pointingstick buttons get reported separately in the PSM, PSR
+and PSL bits.
 
 Dualpoint device -- interleaved packet format
 ---------------------------------------------
diff -druNp --no-dereference linux-libre-4.1-gnu/Documentation/kbuild/makefiles.txt linux-libre-4.1.6-gnu/Documentation/kbuild/makefiles.txt
--- linux-libre-4.1-gnu/Documentation/kbuild/makefiles.txt	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/Documentation/kbuild/makefiles.txt	2015-08-16 23:52:51.000000000 -0400
@@ -952,6 +952,14 @@ When kbuild executes, the following step
 	$(KBUILD_ARFLAGS) set by the top level Makefile to "D" (deterministic
 	mode) if this option is supported by $(AR).
 
+    ARCH_CPPFLAGS, ARCH_AFLAGS, ARCH_CFLAGS   Overrides the kbuild defaults
+
+	These variables are appended to the KBUILD_CPPFLAGS,
+	KBUILD_AFLAGS, and KBUILD_CFLAGS, respectively, after the
+	top-level Makefile has set any other flags. This provides a
+	means for an architecture to override the defaults.
+
+
 --- 6.2 Add prerequisites to archheaders:
 
 	The archheaders: rule is used to generate header files that
diff -druNp --no-dereference linux-libre-4.1-gnu/Documentation/kernel-parameters.txt linux-libre-4.1.6-gnu/Documentation/kernel-parameters.txt
--- linux-libre-4.1-gnu/Documentation/kernel-parameters.txt	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/Documentation/kernel-parameters.txt	2015-08-16 23:52:51.000000000 -0400
@@ -1398,7 +1398,15 @@ bytes respectively. Such letter suffixes
 			The list of supported hash algorithms is defined
 			in crypto/hash_info.h.
 
-	ima_tcb		[IMA]
+	ima_policy=	[IMA]
+			The builtin measurement policy to load during IMA
+			setup.  Specyfing "tcb" as the value, measures all
+			programs exec'd, files mmap'd for exec, and all files
+			opened with the read mode bit set by either the
+			effective uid (euid=0) or uid=0.
+			Format: "tcb"
+
+	ima_tcb		[IMA] Deprecated.  Use ima_policy= instead.
 			Load a policy which meets the needs of the Trusted
 			Computing Base.  This means IMA will measure all
 			programs exec'd, files mmap'd for exec, and all files
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/acpi/acpica/aclocal.h linux-libre-4.1.6-gnu/drivers/acpi/acpica/aclocal.h
--- linux-libre-4.1-gnu/drivers/acpi/acpica/aclocal.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/acpi/acpica/aclocal.h	2015-08-16 23:52:51.000000000 -0400
@@ -213,6 +213,7 @@ struct acpi_table_list {
 
 #define ACPI_TABLE_INDEX_DSDT           (0)
 #define ACPI_TABLE_INDEX_FACS           (1)
+#define ACPI_TABLE_INDEX_X_FACS         (2)
 
 struct acpi_find_context {
 	char *search_for;
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/acpi/acpica/tbfadt.c linux-libre-4.1.6-gnu/drivers/acpi/acpica/tbfadt.c
--- linux-libre-4.1-gnu/drivers/acpi/acpica/tbfadt.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/acpi/acpica/tbfadt.c	2015-08-16 23:52:51.000000000 -0400
@@ -350,9 +350,18 @@ void acpi_tb_parse_fadt(u32 table_index)
 	/* If Hardware Reduced flag is set, there is no FACS */
 
 	if (!acpi_gbl_reduced_hardware) {
-		acpi_tb_install_fixed_table((acpi_physical_address)
-					    acpi_gbl_FADT.Xfacs, ACPI_SIG_FACS,
-					    ACPI_TABLE_INDEX_FACS);
+		if (acpi_gbl_FADT.facs) {
+			acpi_tb_install_fixed_table((acpi_physical_address)
+						    acpi_gbl_FADT.facs,
+						    ACPI_SIG_FACS,
+						    ACPI_TABLE_INDEX_FACS);
+		}
+		if (acpi_gbl_FADT.Xfacs) {
+			acpi_tb_install_fixed_table((acpi_physical_address)
+						    acpi_gbl_FADT.Xfacs,
+						    ACPI_SIG_FACS,
+						    ACPI_TABLE_INDEX_X_FACS);
+		}
 	}
 }
 
@@ -491,13 +500,9 @@ static void acpi_tb_convert_fadt(void)
 	acpi_gbl_FADT.header.length = sizeof(struct acpi_table_fadt);
 
 	/*
-	 * Expand the 32-bit FACS and DSDT addresses to 64-bit as necessary.
+	 * Expand the 32-bit DSDT addresses to 64-bit as necessary.
 	 * Later ACPICA code will always use the X 64-bit field.
 	 */
-	acpi_gbl_FADT.Xfacs = acpi_tb_select_address("FACS",
-						     acpi_gbl_FADT.facs,
-						     acpi_gbl_FADT.Xfacs);
-
 	acpi_gbl_FADT.Xdsdt = acpi_tb_select_address("DSDT",
 						     acpi_gbl_FADT.dsdt,
 						     acpi_gbl_FADT.Xdsdt);
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/acpi/acpica/tbutils.c linux-libre-4.1.6-gnu/drivers/acpi/acpica/tbutils.c
--- linux-libre-4.1-gnu/drivers/acpi/acpica/tbutils.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/acpi/acpica/tbutils.c	2015-08-16 23:52:51.000000000 -0400
@@ -68,7 +68,8 @@ acpi_tb_get_root_table_entry(u8 *table_e
 
 acpi_status acpi_tb_initialize_facs(void)
 {
-	acpi_status status;
+	struct acpi_table_facs *facs32;
+	struct acpi_table_facs *facs64;
 
 	/* If Hardware Reduced flag is set, there is no FACS */
 
@@ -77,11 +78,22 @@ acpi_status acpi_tb_initialize_facs(void
 		return (AE_OK);
 	}
 
-	status = acpi_get_table_by_index(ACPI_TABLE_INDEX_FACS,
-					 ACPI_CAST_INDIRECT_PTR(struct
-								acpi_table_header,
-								&acpi_gbl_FACS));
-	return (status);
+	(void)acpi_get_table_by_index(ACPI_TABLE_INDEX_FACS,
+				      ACPI_CAST_INDIRECT_PTR(struct
+							     acpi_table_header,
+							     &facs32));
+	(void)acpi_get_table_by_index(ACPI_TABLE_INDEX_X_FACS,
+				      ACPI_CAST_INDIRECT_PTR(struct
+							     acpi_table_header,
+							     &facs64));
+
+	if (acpi_gbl_use32_bit_facs_addresses) {
+		acpi_gbl_FACS = facs32 ? facs32 : facs64;
+	} else {
+		acpi_gbl_FACS = facs64 ? facs64 : facs32;
+	}
+
+	return (AE_OK);
 }
 #endif				/* !ACPI_REDUCED_HARDWARE */
 
@@ -101,7 +113,7 @@ acpi_status acpi_tb_initialize_facs(void
 u8 acpi_tb_tables_loaded(void)
 {
 
-	if (acpi_gbl_root_table_list.current_table_count >= 3) {
+	if (acpi_gbl_root_table_list.current_table_count >= 4) {
 		return (TRUE);
 	}
 
@@ -357,11 +369,11 @@ acpi_status __init acpi_tb_parse_root_ta
 	table_entry = ACPI_ADD_PTR(u8, table, sizeof(struct acpi_table_header));
 
 	/*
-	 * First two entries in the table array are reserved for the DSDT
-	 * and FACS, which are not actually present in the RSDT/XSDT - they
-	 * come from the FADT
+	 * First three entries in the table array are reserved for the DSDT
+	 * and 32bit/64bit FACS, which are not actually present in the
+	 * RSDT/XSDT - they come from the FADT
 	 */
-	acpi_gbl_root_table_list.current_table_count = 2;
+	acpi_gbl_root_table_list.current_table_count = 3;
 
 	/* Initialize the root table array from the RSDT/XSDT */
 
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/acpi/acpica/tbxfload.c linux-libre-4.1.6-gnu/drivers/acpi/acpica/tbxfload.c
--- linux-libre-4.1-gnu/drivers/acpi/acpica/tbxfload.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/acpi/acpica/tbxfload.c	2015-08-16 23:52:51.000000000 -0400
@@ -166,7 +166,8 @@ static acpi_status acpi_tb_load_namespac
 
 	(void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
 	for (i = 0; i < acpi_gbl_root_table_list.current_table_count; ++i) {
-		if ((!ACPI_COMPARE_NAME
+		if (!acpi_gbl_root_table_list.tables[i].address ||
+		    (!ACPI_COMPARE_NAME
 		     (&(acpi_gbl_root_table_list.tables[i].signature),
 		      ACPI_SIG_SSDT)
 		     &&
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/acpi/acpica/utxfinit.c linux-libre-4.1.6-gnu/drivers/acpi/acpica/utxfinit.c
--- linux-libre-4.1-gnu/drivers/acpi/acpica/utxfinit.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/acpi/acpica/utxfinit.c	2015-08-16 23:52:51.000000000 -0400
@@ -179,10 +179,12 @@ acpi_status __init acpi_enable_subsystem
 	 * Obtain a permanent mapping for the FACS. This is required for the
 	 * Global Lock and the Firmware Waking Vector
 	 */
-	status = acpi_tb_initialize_facs();
-	if (ACPI_FAILURE(status)) {
-		ACPI_WARNING((AE_INFO, "Could not map the FACS table"));
-		return_ACPI_STATUS(status);
+	if (!(flags & ACPI_NO_FACS_INIT)) {
+		status = acpi_tb_initialize_facs();
+		if (ACPI_FAILURE(status)) {
+			ACPI_WARNING((AE_INFO, "Could not map the FACS table"));
+			return_ACPI_STATUS(status);
+		}
 	}
 #endif				/* !ACPI_REDUCED_HARDWARE */
 
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/acpi/acpi_lpss.c linux-libre-4.1.6-gnu/drivers/acpi/acpi_lpss.c
--- linux-libre-4.1-gnu/drivers/acpi/acpi_lpss.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/acpi/acpi_lpss.c	2015-08-16 23:52:51.000000000 -0400
@@ -352,13 +352,16 @@ static int acpi_lpss_create_device(struc
 				pdata->mmio_size = resource_size(rentry->res);
 			pdata->mmio_base = ioremap(rentry->res->start,
 						   pdata->mmio_size);
-			if (!pdata->mmio_base)
-				goto err_out;
 			break;
 		}
 
 	acpi_dev_free_resource_list(&resource_list);
 
+	if (!pdata->mmio_base) {
+		ret = -ENOMEM;
+		goto err_out;
+	}
+
 	pdata->dev_desc = dev_desc;
 
 	if (dev_desc->setup)
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/acpi/bus.c linux-libre-4.1.6-gnu/drivers/acpi/bus.c
--- linux-libre-4.1-gnu/drivers/acpi/bus.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/acpi/bus.c	2015-08-16 23:52:51.000000000 -0400
@@ -470,6 +470,16 @@ static int __init acpi_bus_init_irq(void
 	return 0;
 }
 
+/**
+ * acpi_early_init - Initialize ACPICA and populate the ACPI namespace.
+ *
+ * The ACPI tables are accessible after this, but the handling of events has not
+ * been initialized and the global lock is not available yet, so AML should not
+ * be executed at this point.
+ *
+ * Doing this before switching the EFI runtime services to virtual mode allows
+ * the EfiBootServices memory to be freed slightly earlier on boot.
+ */
 void __init acpi_early_init(void)
 {
 	acpi_status status;
@@ -533,26 +543,42 @@ void __init acpi_early_init(void)
 		acpi_gbl_FADT.sci_interrupt = acpi_sci_override_gsi;
 	}
 #endif
+	return;
+
+ error0:
+	disable_acpi();
+}
+
+/**
+ * acpi_subsystem_init - Finalize the early initialization of ACPI.
+ *
+ * Switch over the platform to the ACPI mode (if possible), initialize the
+ * handling of ACPI events, install the interrupt and global lock handlers.
+ *
+ * Doing this too early is generally unsafe, but at the same time it needs to be
+ * done before all things that really depend on ACPI.  The right spot appears to
+ * be before finalizing the EFI initialization.
+ */
+void __init acpi_subsystem_init(void)
+{
+	acpi_status status;
+
+	if (acpi_disabled)
+		return;
 
 	status = acpi_enable_subsystem(~ACPI_NO_ACPI_ENABLE);
 	if (ACPI_FAILURE(status)) {
 		printk(KERN_ERR PREFIX "Unable to enable ACPI\n");
-		goto error0;
+		disable_acpi();
+	} else {
+		/*
+		 * If the system is using ACPI then we can be reasonably
+		 * confident that any regulators are managed by the firmware
+		 * so tell the regulator core it has everything it needs to
+		 * know.
+		 */
+		regulator_has_full_constraints();
 	}
-
-	/*
-	 * If the system is using ACPI then we can be reasonably
-	 * confident that any regulators are managed by the firmware
-	 * so tell the regulator core it has everything it needs to
-	 * know.
-	 */
-	regulator_has_full_constraints();
-
-	return;
-
-      error0:
-	disable_acpi();
-	return;
 }
 
 static int __init acpi_bus_init(void)
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/acpi/device_pm.c linux-libre-4.1.6-gnu/drivers/acpi/device_pm.c
--- linux-libre-4.1-gnu/drivers/acpi/device_pm.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/acpi/device_pm.c	2015-08-16 23:52:51.000000000 -0400
@@ -953,6 +953,7 @@ EXPORT_SYMBOL_GPL(acpi_subsys_prepare);
  */
 void acpi_subsys_complete(struct device *dev)
 {
+	pm_generic_complete(dev);
 	/*
 	 * If the device had been runtime-suspended before the system went into
 	 * the sleep state it is going out of and it has never been resumed till
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/acpi/osl.c linux-libre-4.1.6-gnu/drivers/acpi/osl.c
--- linux-libre-4.1-gnu/drivers/acpi/osl.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/acpi/osl.c	2015-08-16 23:52:51.000000000 -0400
@@ -182,7 +182,7 @@ static void __init acpi_request_region (
 		request_mem_region(addr, length, desc);
 }
 
-static void __init acpi_reserve_resources(void)
+static int __init acpi_reserve_resources(void)
 {
 	acpi_request_region(&acpi_gbl_FADT.xpm1a_event_block, acpi_gbl_FADT.pm1_event_length,
 		"ACPI PM1a_EVT_BLK");
@@ -211,7 +211,10 @@ static void __init acpi_reserve_resource
 	if (!(acpi_gbl_FADT.gpe1_block_length & 0x1))
 		acpi_request_region(&acpi_gbl_FADT.xgpe1_block,
 			       acpi_gbl_FADT.gpe1_block_length, "ACPI GPE1_BLK");
+
+	return 0;
 }
+fs_initcall_sync(acpi_reserve_resources);
 
 void acpi_os_printf(const char *fmt, ...)
 {
@@ -1842,7 +1845,6 @@ acpi_status __init acpi_os_initialize(vo
 
 acpi_status __init acpi_os_initialize1(void)
 {
-	acpi_reserve_resources();
 	kacpid_wq = alloc_workqueue("kacpid", 0, 1);
 	kacpi_notify_wq = alloc_workqueue("kacpi_notify", 0, 1);
 	kacpi_hotplug_wq = alloc_ordered_workqueue("kacpi_hotplug", 0);
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/acpi/resource.c linux-libre-4.1.6-gnu/drivers/acpi/resource.c
--- linux-libre-4.1-gnu/drivers/acpi/resource.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/acpi/resource.c	2015-08-16 23:52:51.000000000 -0400
@@ -193,6 +193,7 @@ static bool acpi_decode_space(struct res
 	u8 iodec = attr->granularity == 0xfff ? ACPI_DECODE_10 : ACPI_DECODE_16;
 	bool wp = addr->info.mem.write_protect;
 	u64 len = attr->address_length;
+	u64 start, end, offset = 0;
 	struct resource *res = &win->res;
 
 	/*
@@ -204,9 +205,6 @@ static bool acpi_decode_space(struct res
 		pr_debug("ACPI: Invalid address space min_addr_fix %d, max_addr_fix %d, len %llx\n",
 			 addr->min_address_fixed, addr->max_address_fixed, len);
 
-	res->start = attr->minimum;
-	res->end = attr->maximum;
-
 	/*
 	 * For bridges that translate addresses across the bridge,
 	 * translation_offset is the offset that must be added to the
@@ -214,12 +212,22 @@ static bool acpi_decode_space(struct res
 	 * primary side. Non-bridge devices must list 0 for all Address
 	 * Translation offset bits.
 	 */
-	if (addr->producer_consumer == ACPI_PRODUCER) {
-		res->start += attr->translation_offset;
-		res->end += attr->translation_offset;
-	} else if (attr->translation_offset) {
+	if (addr->producer_consumer == ACPI_PRODUCER)
+		offset = attr->translation_offset;
+	else if (attr->translation_offset)
 		pr_debug("ACPI: translation_offset(%lld) is invalid for non-bridge device.\n",
 			 attr->translation_offset);
+	start = attr->minimum + offset;
+	end = attr->maximum + offset;
+
+	win->offset = offset;
+	res->start = start;
+	res->end = end;
+	if (sizeof(resource_size_t) < sizeof(u64) &&
+	    (offset != win->offset || start != res->start || end != res->end)) {
+		pr_warn("acpi resource window ([%#llx-%#llx] ignored, not CPU addressable)\n",
+			attr->minimum, attr->maximum);
+		return false;
 	}
 
 	switch (addr->resource_type) {
@@ -236,8 +244,6 @@ static bool acpi_decode_space(struct res
 		return false;
 	}
 
-	win->offset = attr->translation_offset;
-
 	if (addr->producer_consumer == ACPI_PRODUCER)
 		res->flags |= IORESOURCE_WINDOW;
 
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/ata/libata-core.c linux-libre-4.1.6-gnu/drivers/ata/libata-core.c
--- linux-libre-4.1-gnu/drivers/ata/libata-core.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/ata/libata-core.c	2015-08-16 23:52:51.000000000 -0400
@@ -2478,6 +2478,10 @@ int ata_dev_configure(struct ata_device
 		dev->max_sectors = min_t(unsigned int, ATA_MAX_SECTORS_128,
 					 dev->max_sectors);
 
+	if (dev->horkage & ATA_HORKAGE_MAX_SEC_1024)
+		dev->max_sectors = min_t(unsigned int, ATA_MAX_SECTORS_1024,
+					 dev->max_sectors);
+
 	if (dev->horkage & ATA_HORKAGE_MAX_SEC_LBA48)
 		dev->max_sectors = ATA_MAX_SECTORS_LBA48;
 
@@ -4146,6 +4150,12 @@ static const struct ata_blacklist_entry
 	{ "Slimtype DVD A  DS8A8SH", NULL,	ATA_HORKAGE_MAX_SEC_LBA48 },
 	{ "Slimtype DVD A  DS8A9SH", NULL,	ATA_HORKAGE_MAX_SEC_LBA48 },
 
+	/*
+	 * Causes silent data corruption with higher max sects.
+	 * http://lkml.kernel.org/g/x49wpy40ysk.fsf@segfault.boston.devel.redhat.com
+	 */
+	{ "ST380013AS",		"3.20",		ATA_HORKAGE_MAX_SEC_1024 },
+
 	/* Devices we expect to fail diagnostics */
 
 	/* Devices where NCQ should be avoided */
@@ -4174,9 +4184,10 @@ static const struct ata_blacklist_entry
 	{ "ST3320[68]13AS",	"SD1[5-9]",	ATA_HORKAGE_NONCQ |
 						ATA_HORKAGE_FIRMWARE_WARN },
 
-	/* Seagate Momentus SpinPoint M8 seem to have FPMDA_AA issues */
+	/* drives which fail FPDMA_AA activation (some may freeze afterwards) */
 	{ "ST1000LM024 HN-M101MBB", "2AR10001",	ATA_HORKAGE_BROKEN_FPDMA_AA },
 	{ "ST1000LM024 HN-M101MBB", "2BA30001",	ATA_HORKAGE_BROKEN_FPDMA_AA },
+	{ "VB0250EAVER",	"HPG7",		ATA_HORKAGE_BROKEN_FPDMA_AA },
 
 	/* Blacklist entries taken from Silicon Image 3124/3132
 	   Windows driver .inf file - also several Linux problem reports */
@@ -4225,11 +4236,11 @@ static const struct ata_blacklist_entry
 	{ "PIONEER DVD-RW  DVR-216D",	NULL,	ATA_HORKAGE_NOSETXFER },
 
 	/* devices that don't properly handle queued TRIM commands */
-	{ "Micron_M500*",		NULL,	ATA_HORKAGE_NO_NCQ_TRIM |
+	{ "Micron_M500_*",		NULL,	ATA_HORKAGE_NO_NCQ_TRIM |
 						ATA_HORKAGE_ZERO_AFTER_TRIM, },
 	{ "Crucial_CT*M500*",		NULL,	ATA_HORKAGE_NO_NCQ_TRIM |
 						ATA_HORKAGE_ZERO_AFTER_TRIM, },
-	{ "Micron_M5[15]0*",		"MU01",	ATA_HORKAGE_NO_NCQ_TRIM |
+	{ "Micron_M5[15]0_*",		"MU01",	ATA_HORKAGE_NO_NCQ_TRIM |
 						ATA_HORKAGE_ZERO_AFTER_TRIM, },
 	{ "Crucial_CT*M550*",		"MU01",	ATA_HORKAGE_NO_NCQ_TRIM |
 						ATA_HORKAGE_ZERO_AFTER_TRIM, },
@@ -4238,6 +4249,9 @@ static const struct ata_blacklist_entry
 	{ "Samsung SSD 8*",		NULL,	ATA_HORKAGE_NO_NCQ_TRIM |
 						ATA_HORKAGE_ZERO_AFTER_TRIM, },
 
+	/* devices that don't properly handle TRIM commands */
+	{ "SuperSSpeed S238*",		NULL,	ATA_HORKAGE_NOTRIM, },
+
 	/*
 	 * As defined, the DRAT (Deterministic Read After Trim) and RZAT
 	 * (Return Zero After Trim) flags in the ATA Command Set are
@@ -4501,7 +4515,8 @@ static unsigned int ata_dev_set_xfermode
 	else /* In the ancient relic department - skip all of this */
 		return 0;
 
-	err_mask = ata_exec_internal(dev, &tf, NULL, DMA_NONE, NULL, 0, 0);
+	/* On some disks, this command causes spin-up, so we need longer timeout */
+	err_mask = ata_exec_internal(dev, &tf, NULL, DMA_NONE, NULL, 0, 15000);
 
 	DPRINTK("EXIT, err_mask=%x\n", err_mask);
 	return err_mask;
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/ata/libata-eh.c linux-libre-4.1.6-gnu/drivers/ata/libata-eh.c
--- linux-libre-4.1-gnu/drivers/ata/libata-eh.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/ata/libata-eh.c	2015-08-16 23:52:51.000000000 -0400
@@ -1507,16 +1507,21 @@ unsigned int ata_read_log_page(struct at
 {
 	struct ata_taskfile tf;
 	unsigned int err_mask;
+	bool dma = false;
 
 	DPRINTK("read log page - log 0x%x, page 0x%x\n", log, page);
 
+retry:
 	ata_tf_init(dev, &tf);
-	if (dev->dma_mode && ata_id_has_read_log_dma_ext(dev->id)) {
+	if (dev->dma_mode && ata_id_has_read_log_dma_ext(dev->id) &&
+	    !(dev->horkage & ATA_HORKAGE_NO_NCQ_LOG)) {
 		tf.command = ATA_CMD_READ_LOG_DMA_EXT;
 		tf.protocol = ATA_PROT_DMA;
+		dma = true;
 	} else {
 		tf.command = ATA_CMD_READ_LOG_EXT;
 		tf.protocol = ATA_PROT_PIO;
+		dma = false;
 	}
 	tf.lbal = log;
 	tf.lbam = page;
@@ -1527,6 +1532,12 @@ unsigned int ata_read_log_page(struct at
 	err_mask = ata_exec_internal(dev, &tf, NULL, DMA_FROM_DEVICE,
 				     buf, sectors * ATA_SECT_SIZE, 0);
 
+	if (err_mask && dma) {
+		dev->horkage |= ATA_HORKAGE_NO_NCQ_LOG;
+		ata_dev_warn(dev, "READ LOG DMA EXT failed, trying unqueued\n");
+		goto retry;
+	}
+
 	DPRINTK("EXIT, err_mask=%x\n", err_mask);
 	return err_mask;
 }
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/ata/libata-pmp.c linux-libre-4.1.6-gnu/drivers/ata/libata-pmp.c
--- linux-libre-4.1-gnu/drivers/ata/libata-pmp.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/ata/libata-pmp.c	2015-08-16 23:52:51.000000000 -0400
@@ -460,6 +460,13 @@ static void sata_pmp_quirks(struct ata_p
 				       ATA_LFLAG_NO_SRST |
 				       ATA_LFLAG_ASSUME_ATA;
 		}
+	} else if (vendor == 0x11ab && devid == 0x4140) {
+		/* Marvell 4140 quirks */
+		ata_for_each_link(link, ap, EDGE) {
+			/* port 4 is for SEMB device and it doesn't like SRST */
+			if (link->pmp == 4)
+				link->flags |= ATA_LFLAG_DISABLED;
+		}
 	}
 }
 
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/ata/libata-scsi.c linux-libre-4.1.6-gnu/drivers/ata/libata-scsi.c
--- linux-libre-4.1-gnu/drivers/ata/libata-scsi.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/ata/libata-scsi.c	2015-08-16 23:52:51.000000000 -0400
@@ -2568,7 +2568,8 @@ static unsigned int ata_scsiop_read_cap(
 		rbuf[14] = (lowest_aligned >> 8) & 0x3f;
 		rbuf[15] = lowest_aligned;
 
-		if (ata_id_has_trim(args->id)) {
+		if (ata_id_has_trim(args->id) &&
+		    !(dev->horkage & ATA_HORKAGE_NOTRIM)) {
 			rbuf[14] |= 0x80; /* LBPME */
 
 			if (ata_id_has_zero_after_trim(args->id) &&
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/ata/libata-transport.c linux-libre-4.1.6-gnu/drivers/ata/libata-transport.c
--- linux-libre-4.1-gnu/drivers/ata/libata-transport.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/ata/libata-transport.c	2015-08-16 23:52:51.000000000 -0400
@@ -560,6 +560,29 @@ show_ata_dev_gscr(struct device *dev,
 
 static DEVICE_ATTR(gscr, S_IRUGO, show_ata_dev_gscr, NULL);
 
+static ssize_t
+show_ata_dev_trim(struct device *dev,
+		  struct device_attribute *attr, char *buf)
+{
+	struct ata_device *ata_dev = transport_class_to_dev(dev);
+	unsigned char *mode;
+
+	if (!ata_id_has_trim(ata_dev->id))
+		mode = "unsupported";
+	else if (ata_dev->horkage & ATA_HORKAGE_NOTRIM)
+		mode = "forced_unsupported";
+	else if (ata_dev->horkage & ATA_HORKAGE_NO_NCQ_TRIM)
+			mode = "forced_unqueued";
+	else if (ata_fpdma_dsm_supported(ata_dev))
+		mode = "queued";
+	else
+		mode = "unqueued";
+
+	return snprintf(buf, 20, "%s\n", mode);
+}
+
+static DEVICE_ATTR(trim, S_IRUGO, show_ata_dev_trim, NULL);
+
 static DECLARE_TRANSPORT_CLASS(ata_dev_class,
 			       "ata_device", NULL, NULL, NULL);
 
@@ -733,6 +756,7 @@ struct scsi_transport_template *ata_atta
 	SETUP_DEV_ATTRIBUTE(ering);
 	SETUP_DEV_ATTRIBUTE(id);
 	SETUP_DEV_ATTRIBUTE(gscr);
+	SETUP_DEV_ATTRIBUTE(trim);
 	BUG_ON(count > ATA_DEV_ATTRS);
 	i->dev_attrs[count] = NULL;
 
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/base/firmware_class.c linux-libre-4.1.6-gnu/drivers/base/firmware_class.c
--- linux-libre-4.1-gnu/drivers/base/firmware_class.c	2015-06-22 01:47:29.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/base/firmware_class.c	2015-08-17 08:18:20.000000000 -0400
@@ -544,10 +544,8 @@ static void fw_dev_release(struct device
 	kfree(fw_priv);
 }
 
-static int firmware_uevent(struct device *dev, struct kobj_uevent_env *env)
+static int do_firmware_uevent(struct firmware_priv *fw_priv, struct kobj_uevent_env *env)
 {
-	struct firmware_priv *fw_priv = to_firmware_priv(dev);
-
 	if (add_uevent_var(env, "FIRMWARE=%s", fw_priv->buf->fw_id))
 		return -ENOMEM;
 	if (add_uevent_var(env, "TIMEOUT=%i", loading_timeout))
@@ -558,6 +556,18 @@ static int firmware_uevent(struct device
 	return 0;
 }
 
+static int firmware_uevent(struct device *dev, struct kobj_uevent_env *env)
+{
+	struct firmware_priv *fw_priv = to_firmware_priv(dev);
+	int err = 0;
+
+	mutex_lock(&fw_lock);
+	if (fw_priv->buf)
+		err = do_firmware_uevent(fw_priv, env);
+	mutex_unlock(&fw_lock);
+	return err;
+}
+
 static struct class firmware_class = {
 	.name		= "firmware",
 	.class_attrs	= firmware_class_attrs,
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/base/power/clock_ops.c linux-libre-4.1.6-gnu/drivers/base/power/clock_ops.c
--- linux-libre-4.1-gnu/drivers/base/power/clock_ops.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/base/power/clock_ops.c	2015-08-16 23:52:51.000000000 -0400
@@ -93,7 +93,7 @@ static int __pm_clk_add(struct device *d
 			return -ENOMEM;
 		}
 	} else {
-		if (IS_ERR(ce->clk) || !__clk_get(clk)) {
+		if (IS_ERR(clk) || !__clk_get(clk)) {
 			kfree(ce);
 			return -ENOENT;
 		}
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/base/regmap/regmap.c linux-libre-4.1.6-gnu/drivers/base/regmap/regmap.c
--- linux-libre-4.1-gnu/drivers/base/regmap/regmap.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/base/regmap/regmap.c	2015-08-16 23:52:51.000000000 -0400
@@ -945,11 +945,10 @@ EXPORT_SYMBOL_GPL(devm_regmap_init);
 static void regmap_field_init(struct regmap_field *rm_field,
 	struct regmap *regmap, struct reg_field reg_field)
 {
-	int field_bits = reg_field.msb - reg_field.lsb + 1;
 	rm_field->regmap = regmap;
 	rm_field->reg = reg_field.reg;
 	rm_field->shift = reg_field.lsb;
-	rm_field->mask = ((BIT(field_bits) - 1) << reg_field.lsb);
+	rm_field->mask = GENMASK(reg_field.msb, reg_field.lsb);
 	rm_field->id_size = reg_field.id_size;
 	rm_field->id_offset = reg_field.id_offset;
 }
@@ -2318,7 +2317,7 @@ int regmap_bulk_read(struct regmap *map,
 					  &ival);
 			if (ret != 0)
 				return ret;
-			memcpy(val + (i * val_bytes), &ival, val_bytes);
+			map->format.format_val(val + (i * val_bytes), ival, 0);
 		}
 	}
 
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/block/loop.c linux-libre-4.1.6-gnu/drivers/block/loop.c
--- linux-libre-4.1-gnu/drivers/block/loop.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/block/loop.c	2015-08-16 23:52:51.000000000 -0400
@@ -86,8 +86,6 @@ static DEFINE_MUTEX(loop_index_mutex);
 static int max_part;
 static int part_shift;
 
-static struct workqueue_struct *loop_wq;
-
 static int transfer_xor(struct loop_device *lo, int cmd,
 			struct page *raw_page, unsigned raw_off,
 			struct page *loop_page, unsigned loop_off,
@@ -725,6 +723,12 @@ static int loop_set_fd(struct loop_devic
 	size = get_loop_size(lo, file);
 	if ((loff_t)(sector_t)size != size)
 		goto out_putf;
+	error = -ENOMEM;
+	lo->wq = alloc_workqueue("kloopd%d",
+			WQ_MEM_RECLAIM | WQ_HIGHPRI | WQ_UNBOUND, 16,
+			lo->lo_number);
+	if (!lo->wq)
+		goto out_putf;
 
 	error = 0;
 
@@ -872,6 +876,8 @@ static int loop_clr_fd(struct loop_devic
 	lo->lo_flags = 0;
 	if (!part_shift)
 		lo->lo_disk->flags |= GENHD_FL_NO_PART_SCAN;
+	destroy_workqueue(lo->wq);
+	lo->wq = NULL;
 	mutex_unlock(&lo->lo_ctl_mutex);
 	/*
 	 * Need not hold lo_ctl_mutex to fput backing file.
@@ -1425,9 +1431,13 @@ static int loop_queue_rq(struct blk_mq_h
 		const struct blk_mq_queue_data *bd)
 {
 	struct loop_cmd *cmd = blk_mq_rq_to_pdu(bd->rq);
+	struct loop_device *lo = cmd->rq->q->queuedata;
 
 	blk_mq_start_request(bd->rq);
 
+	if (lo->lo_state != Lo_bound)
+		return -EIO;
+
 	if (cmd->rq->cmd_flags & REQ_WRITE) {
 		struct loop_device *lo = cmd->rq->q->queuedata;
 		bool need_sched = true;
@@ -1441,9 +1451,9 @@ static int loop_queue_rq(struct blk_mq_h
 		spin_unlock_irq(&lo->lo_lock);
 
 		if (need_sched)
-			queue_work(loop_wq, &lo->write_work);
+			queue_work(lo->wq, &lo->write_work);
 	} else {
-		queue_work(loop_wq, &cmd->read_work);
+		queue_work(lo->wq, &cmd->read_work);
 	}
 
 	return BLK_MQ_RQ_QUEUE_OK;
@@ -1455,9 +1465,6 @@ static void loop_handle_cmd(struct loop_
 	struct loop_device *lo = cmd->rq->q->queuedata;
 	int ret = -EIO;
 
-	if (lo->lo_state != Lo_bound)
-		goto failed;
-
 	if (write && (lo->lo_flags & LO_FLAGS_READ_ONLY))
 		goto failed;
 
@@ -1806,13 +1813,6 @@ static int __init loop_init(void)
 		goto misc_out;
 	}
 
-	loop_wq = alloc_workqueue("kloopd",
-			WQ_MEM_RECLAIM | WQ_HIGHPRI | WQ_UNBOUND, 0);
-	if (!loop_wq) {
-		err = -ENOMEM;
-		goto misc_out;
-	}
-
 	blk_register_region(MKDEV(LOOP_MAJOR, 0), range,
 				  THIS_MODULE, loop_probe, NULL, NULL);
 
@@ -1850,8 +1850,6 @@ static void __exit loop_exit(void)
 	blk_unregister_region(MKDEV(LOOP_MAJOR, 0), range);
 	unregister_blkdev(LOOP_MAJOR, "loop");
 
-	destroy_workqueue(loop_wq);
-
 	misc_deregister(&loop_misc);
 }
 
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/block/loop.h linux-libre-4.1.6-gnu/drivers/block/loop.h
--- linux-libre-4.1-gnu/drivers/block/loop.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/block/loop.h	2015-08-16 23:52:51.000000000 -0400
@@ -54,6 +54,7 @@ struct loop_device {
 	gfp_t		old_gfp_mask;
 
 	spinlock_t		lo_lock;
+	struct workqueue_struct *wq;
 	struct list_head	write_cmd_head;
 	struct work_struct	write_work;
 	bool			write_started;
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/block/rbd.c linux-libre-4.1.6-gnu/drivers/block/rbd.c
--- linux-libre-4.1-gnu/drivers/block/rbd.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/block/rbd.c	2015-08-16 23:52:51.000000000 -0400
@@ -522,6 +522,7 @@ void rbd_warn(struct rbd_device *rbd_dev
 #  define rbd_assert(expr)	((void) 0)
 #endif /* !RBD_DEBUG */
 
+static void rbd_osd_copyup_callback(struct rbd_obj_request *obj_request);
 static int rbd_img_obj_request_submit(struct rbd_obj_request *obj_request);
 static void rbd_img_parent_read(struct rbd_obj_request *obj_request);
 static void rbd_dev_remove_parent(struct rbd_device *rbd_dev);
@@ -1797,6 +1798,16 @@ static void rbd_osd_stat_callback(struct
 	obj_request_done_set(obj_request);
 }
 
+static void rbd_osd_call_callback(struct rbd_obj_request *obj_request)
+{
+	dout("%s: obj %p\n", __func__, obj_request);
+
+	if (obj_request_img_data_test(obj_request))
+		rbd_osd_copyup_callback(obj_request);
+	else
+		obj_request_done_set(obj_request);
+}
+
 static void rbd_osd_req_callback(struct ceph_osd_request *osd_req,
 				struct ceph_msg *msg)
 {
@@ -1845,6 +1856,8 @@ static void rbd_osd_req_callback(struct
 		rbd_osd_discard_callback(obj_request);
 		break;
 	case CEPH_OSD_OP_CALL:
+		rbd_osd_call_callback(obj_request);
+		break;
 	case CEPH_OSD_OP_NOTIFY_ACK:
 	case CEPH_OSD_OP_WATCH:
 		rbd_osd_trivial_callback(obj_request);
@@ -2001,11 +2014,11 @@ static struct rbd_obj_request *rbd_obj_r
 	rbd_assert(obj_request_type_valid(type));
 
 	size = strlen(object_name) + 1;
-	name = kmalloc(size, GFP_KERNEL);
+	name = kmalloc(size, GFP_NOIO);
 	if (!name)
 		return NULL;
 
-	obj_request = kmem_cache_zalloc(rbd_obj_request_cache, GFP_KERNEL);
+	obj_request = kmem_cache_zalloc(rbd_obj_request_cache, GFP_NOIO);
 	if (!obj_request) {
 		kfree(name);
 		return NULL;
@@ -2509,13 +2522,15 @@ out_unwind:
 }
 
 static void
-rbd_img_obj_copyup_callback(struct rbd_obj_request *obj_request)
+rbd_osd_copyup_callback(struct rbd_obj_request *obj_request)
 {
 	struct rbd_img_request *img_request;
 	struct rbd_device *rbd_dev;
 	struct page **pages;
 	u32 page_count;
 
+	dout("%s: obj %p\n", __func__, obj_request);
+
 	rbd_assert(obj_request->type == OBJ_REQUEST_BIO ||
 		obj_request->type == OBJ_REQUEST_NODATA);
 	rbd_assert(obj_request_img_data_test(obj_request));
@@ -2542,9 +2557,7 @@ rbd_img_obj_copyup_callback(struct rbd_o
 	if (!obj_request->result)
 		obj_request->xferred = obj_request->length;
 
-	/* Finish up with the normal image object callback */
-
-	rbd_img_obj_callback(obj_request);
+	obj_request_done_set(obj_request);
 }
 
 static void
@@ -2629,7 +2642,6 @@ rbd_img_obj_parent_read_full_callback(st
 
 	/* All set, send it off. */
 
-	orig_request->callback = rbd_img_obj_copyup_callback;
 	osdc = &rbd_dev->rbd_client->client->osdc;
 	img_result = rbd_obj_request_submit(osdc, orig_request);
 	if (!img_result)
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/bluetooth/ath3k.c linux-libre-4.1.6-gnu/drivers/bluetooth/ath3k.c
--- linux-libre-4.1-gnu/drivers/bluetooth/ath3k.c	2015-06-22 02:03:38.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/bluetooth/ath3k.c	2015-08-17 08:35:36.000000000 -0400
@@ -80,6 +80,7 @@ static const struct usb_device_id ath3k_
 	{ USB_DEVICE(0x0489, 0xe057) },
 	{ USB_DEVICE(0x0489, 0xe056) },
 	{ USB_DEVICE(0x0489, 0xe05f) },
+	{ USB_DEVICE(0x0489, 0xe076) },
 	{ USB_DEVICE(0x0489, 0xe078) },
 	{ USB_DEVICE(0x04c5, 0x1330) },
 	{ USB_DEVICE(0x04CA, 0x3004) },
@@ -88,6 +89,7 @@ static const struct usb_device_id ath3k_
 	{ USB_DEVICE(0x04CA, 0x3007) },
 	{ USB_DEVICE(0x04CA, 0x3008) },
 	{ USB_DEVICE(0x04CA, 0x300b) },
+	{ USB_DEVICE(0x04CA, 0x300d) },
 	{ USB_DEVICE(0x04CA, 0x300f) },
 	{ USB_DEVICE(0x04CA, 0x3010) },
 	{ USB_DEVICE(0x0930, 0x0219) },
@@ -113,6 +115,7 @@ static const struct usb_device_id ath3k_
 	{ USB_DEVICE(0x13d3, 0x3408) },
 	{ USB_DEVICE(0x13d3, 0x3423) },
 	{ USB_DEVICE(0x13d3, 0x3432) },
+	{ USB_DEVICE(0x13d3, 0x3474) },
 
 	/* Atheros AR5BBU12 with sflash firmware */
 	{ USB_DEVICE(0x0489, 0xE02C) },
@@ -137,6 +140,7 @@ static const struct usb_device_id ath3k_
 	{ USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
 	{ 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(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
@@ -145,6 +149,7 @@ static const struct usb_device_id ath3k_
 	{ USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
+	{ 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(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
@@ -170,6 +175,7 @@ static const struct usb_device_id ath3k_
 	{ 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, 0x3474), .driver_info = BTUSB_ATH3012 },
 
 	/* Atheros AR5BBU22 with sflash firmware */
 	{ USB_DEVICE(0x0489, 0xE036), .driver_info = BTUSB_ATH3012 },
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/bluetooth/btbcm.c linux-libre-4.1.6-gnu/drivers/bluetooth/btbcm.c
--- linux-libre-4.1-gnu/drivers/bluetooth/btbcm.c	2015-06-22 02:03:41.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/bluetooth/btbcm.c	2015-08-17 08:35:39.000000000 -0400
@@ -378,12 +378,11 @@ int btbcm_setup_apple(struct hci_dev *hd
 
 	/* Read Verbose Config Version Info */
 	skb = btbcm_read_verbose_config(hdev);
-	if (IS_ERR(skb))
-		return PTR_ERR(skb);
-
-	BT_INFO("%s: BCM: chip id %u build %4.4u", hdev->name, skb->data[1],
-		get_unaligned_le16(skb->data + 5));
-	kfree_skb(skb);
+	if (!IS_ERR(skb)) {
+		BT_INFO("%s: BCM: chip id %u build %4.4u", hdev->name, skb->data[1],
+			get_unaligned_le16(skb->data + 5));
+		kfree_skb(skb);
+	}
 
 	set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
 
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/bluetooth/btusb.c linux-libre-4.1.6-gnu/drivers/bluetooth/btusb.c
--- linux-libre-4.1-gnu/drivers/bluetooth/btusb.c	2015-06-22 02:03:52.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/bluetooth/btusb.c	2015-08-17 08:35:59.000000000 -0400
@@ -178,6 +178,7 @@ static const struct usb_device_id blackl
 	{ USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
 	{ 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(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
@@ -186,6 +187,7 @@ static const struct usb_device_id blackl
 	{ USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
+	{ 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(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
@@ -211,6 +213,7 @@ static const struct usb_device_id blackl
 	{ 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, 0x3474), .driver_info = BTUSB_ATH3012 },
 
 	/* Atheros AR5BBU12 with sflash firmware */
 	{ USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
@@ -265,7 +268,7 @@ static const struct usb_device_id blackl
 	{ USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
 
 	/* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */
-	{ USB_DEVICE(0x1300, 0x0001), .driver_info = BTUSB_SWAVE },
+	{ USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE },
 
 	/* Digianswer devices */
 	{ USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
@@ -1990,6 +1993,8 @@ static int btusb_setup_intel(struct hci_
 	}
 	fw_ptr = fw->data;
 
+	kfree_skb(skb);
+
 	/* This Intel specific command enables the manufacturer mode of the
 	 * controller.
 	 *
@@ -2331,6 +2336,7 @@ static int btusb_setup_intel_new(struct
 	struct intel_boot_params *params;
 	const struct firmware *fw;
 	const u8 *fw_ptr;
+	u32 frag_len;
 	char fwname[64];
 	ktime_t calltime, delta, rettime;
 	unsigned long long duration;
@@ -2537,24 +2543,33 @@ static int btusb_setup_intel_new(struct
 	}
 
 	fw_ptr = fw->data + 644;
+	frag_len = 0;
 
 	while (fw_ptr - fw->data < fw->size) {
-		struct hci_command_hdr *cmd = (void *)fw_ptr;
-		u8 cmd_len;
+		struct hci_command_hdr *cmd = (void *)(fw_ptr + frag_len);
 
-		cmd_len = sizeof(*cmd) + cmd->plen;
+		frag_len += sizeof(*cmd) + cmd->plen;
 
-		/* Send each command from the firmware data buffer as
-		 * a single Data fragment.
+		/* The paramter length of the secure send command requires
+		 * a 4 byte alignment. It happens so that the firmware file
+		 * contains proper Intel_NOP commands to align the fragments
+		 * as needed.
+		 *
+		 * Send set of commands with 4 byte alignment from the
+		 * firmware data buffer as a single Data fragement.
 		 */
-		err = btusb_intel_secure_send(hdev, 0x01, cmd_len, fw_ptr);
-		if (err < 0) {
-			BT_ERR("%s: Failed to send firmware data (%d)",
-			       hdev->name, err);
-			goto done;
-		}
+		if (!(frag_len % 4)) {
+			err = btusb_intel_secure_send(hdev, 0x01, frag_len,
+						      fw_ptr);
+			if (err < 0) {
+				BT_ERR("%s: Failed to send firmware data (%d)",
+				       hdev->name, err);
+				goto done;
+			}
 
-		fw_ptr += cmd_len;
+			fw_ptr += frag_len;
+			frag_len = 0;
+		}
 	}
 
 	set_bit(BTUSB_FIRMWARE_LOADED, &data->flags);
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/bus/arm-ccn.c linux-libre-4.1.6-gnu/drivers/bus/arm-ccn.c
--- linux-libre-4.1-gnu/drivers/bus/arm-ccn.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/bus/arm-ccn.c	2015-08-16 23:52:51.000000000 -0400
@@ -212,7 +212,7 @@ static int arm_ccn_node_to_xp_port(int n
 
 static void arm_ccn_pmu_config_set(u64 *config, u32 node_xp, u32 type, u32 port)
 {
-	*config &= ~((0xff << 0) | (0xff << 8) | (0xff << 24));
+	*config &= ~((0xff << 0) | (0xff << 8) | (0x3 << 24));
 	*config |= (node_xp << 0) | (type << 8) | (port << 24);
 }
 
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/char/agp/intel-gtt.c linux-libre-4.1.6-gnu/drivers/char/agp/intel-gtt.c
--- linux-libre-4.1-gnu/drivers/char/agp/intel-gtt.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/char/agp/intel-gtt.c	2015-08-16 23:52:51.000000000 -0400
@@ -581,7 +581,7 @@ static inline int needs_ilk_vtd_wa(void)
 	/* Query intel_iommu to see if we need the workaround. Presumably that
 	 * was loaded first.
 	 */
-	if ((gpu_devid == PCI_DEVICE_ID_INTEL_IRONLAKE_M_HB ||
+	if ((gpu_devid == PCI_DEVICE_ID_INTEL_IRONLAKE_D_IG ||
 	     gpu_devid == PCI_DEVICE_ID_INTEL_IRONLAKE_M_IG) &&
 	     intel_iommu_gfx_mapped)
 		return 1;
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/char/hw_random/core.c linux-libre-4.1.6-gnu/drivers/char/hw_random/core.c
--- linux-libre-4.1-gnu/drivers/char/hw_random/core.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/char/hw_random/core.c	2015-08-16 23:52:51.000000000 -0400
@@ -429,7 +429,7 @@ static int hwrng_fillfn(void *unused)
 static void start_khwrngd(void)
 {
 	hwrng_fill = kthread_run(hwrng_fillfn, NULL, "hwrng");
-	if (hwrng_fill == ERR_PTR(-ENOMEM)) {
+	if (IS_ERR(hwrng_fill)) {
 		pr_err("hwrng_fill thread creation failed");
 		hwrng_fill = NULL;
 	}
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/char/i8k.c linux-libre-4.1.6-gnu/drivers/char/i8k.c
--- linux-libre-4.1-gnu/drivers/char/i8k.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/char/i8k.c	2015-08-16 23:52:51.000000000 -0400
@@ -900,6 +900,21 @@ 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 = {
+	{
+		/*
+		 * 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"),
+		},
+	},
+	{ }
+};
+
 /*
  * Probe for the presence of a supported laptop.
  */
@@ -911,7 +926,8 @@ static int __init i8k_probe(void)
 	/*
 	 * Get DMI information
 	 */
-	if (!dmi_check_system(i8k_dmi_table)) {
+	if (!dmi_check_system(i8k_dmi_table) ||
+	    dmi_check_system(i8k_blacklist_dmi_table)) {
 		if (!ignore_dmi && !force)
 			return -ENODEV;
 
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/char/tpm/tpm-chip.c linux-libre-4.1.6-gnu/drivers/char/tpm/tpm-chip.c
--- linux-libre-4.1-gnu/drivers/char/tpm/tpm-chip.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/char/tpm/tpm-chip.c	2015-08-16 23:52:51.000000000 -0400
@@ -129,8 +129,9 @@ struct tpm_chip *tpmm_chip_alloc(struct
 
 	device_initialize(&chip->dev);
 
-	chip->cdev.owner = chip->pdev->driver->owner;
 	cdev_init(&chip->cdev, &tpm_fops);
+	chip->cdev.owner = chip->pdev->driver->owner;
+	chip->cdev.kobj.parent = &chip->dev.kobj;
 
 	return chip;
 }
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/char/tpm/tpm_crb.c linux-libre-4.1.6-gnu/drivers/char/tpm/tpm_crb.c
--- linux-libre-4.1-gnu/drivers/char/tpm/tpm_crb.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/char/tpm/tpm_crb.c	2015-08-16 23:52:51.000000000 -0400
@@ -233,6 +233,14 @@ static int crb_acpi_add(struct acpi_devi
 		return -ENODEV;
 	}
 
+	/* At least some versions of AMI BIOS have a bug that TPM2 table has
+	 * zero address for the control area and therefore we must fail.
+	*/
+	if (!buf->control_area_pa) {
+		dev_err(dev, "TPM2 ACPI table has a zero address for the control area\n");
+		return -EINVAL;
+	}
+
 	if (buf->hdr.length < sizeof(struct acpi_tpm2)) {
 		dev_err(dev, "TPM2 ACPI table has wrong size");
 		return -EINVAL;
@@ -267,7 +275,7 @@ static int crb_acpi_add(struct acpi_devi
 
 	memcpy_fromio(&pa, &priv->cca->cmd_pa, 8);
 	pa = le64_to_cpu(pa);
-	priv->cmd = devm_ioremap_nocache(dev, le64_to_cpu(pa),
+	priv->cmd = devm_ioremap_nocache(dev, pa,
 					 ioread32(&priv->cca->cmd_size));
 	if (!priv->cmd) {
 		dev_err(dev, "ioremap of the command buffer failed\n");
@@ -276,7 +284,7 @@ static int crb_acpi_add(struct acpi_devi
 
 	memcpy_fromio(&pa, &priv->cca->rsp_pa, 8);
 	pa = le64_to_cpu(pa);
-	priv->rsp = devm_ioremap_nocache(dev, le64_to_cpu(pa),
+	priv->rsp = devm_ioremap_nocache(dev, pa,
 					 ioread32(&priv->cca->rsp_size));
 	if (!priv->rsp) {
 		dev_err(dev, "ioremap of the response buffer failed\n");
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/char/tpm/tpm_ibmvtpm.c linux-libre-4.1.6-gnu/drivers/char/tpm/tpm_ibmvtpm.c
--- linux-libre-4.1-gnu/drivers/char/tpm/tpm_ibmvtpm.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/char/tpm/tpm_ibmvtpm.c	2015-08-16 23:52:51.000000000 -0400
@@ -578,6 +578,9 @@ static int tpm_ibmvtpm_probe(struct vio_
 		goto cleanup;
 	}
 
+	ibmvtpm->dev = dev;
+	ibmvtpm->vdev = vio_dev;
+
 	crq_q = &ibmvtpm->crq_queue;
 	crq_q->crq_addr = (struct ibmvtpm_crq *)get_zeroed_page(GFP_KERNEL);
 	if (!crq_q->crq_addr) {
@@ -622,8 +625,6 @@ static int tpm_ibmvtpm_probe(struct vio_
 
 	crq_q->index = 0;
 
-	ibmvtpm->dev = dev;
-	ibmvtpm->vdev = vio_dev;
 	TPM_VPRIV(chip) = (void *)ibmvtpm;
 
 	spin_lock_init(&ibmvtpm->rtce_lock);
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/clk/clk.c linux-libre-4.1.6-gnu/drivers/clk/clk.c
--- linux-libre-4.1-gnu/drivers/clk/clk.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/clk/clk.c	2015-08-16 23:52:51.000000000 -0400
@@ -230,11 +230,12 @@ static void clk_dump_one(struct seq_file
 	if (!c)
 		return;
 
+	/* This should be JSON format, i.e. elements separated with a comma */
 	seq_printf(s, "\"%s\": { ", c->name);
 	seq_printf(s, "\"enable_count\": %d,", c->enable_count);
 	seq_printf(s, "\"prepare_count\": %d,", c->prepare_count);
-	seq_printf(s, "\"rate\": %lu", clk_core_get_rate(c));
-	seq_printf(s, "\"accuracy\": %lu", clk_core_get_accuracy(c));
+	seq_printf(s, "\"rate\": %lu,", clk_core_get_rate(c));
+	seq_printf(s, "\"accuracy\": %lu,", clk_core_get_accuracy(c));
 	seq_printf(s, "\"phase\": %d", clk_core_get_phase(c));
 }
 
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/clk/keystone/pll.c linux-libre-4.1.6-gnu/drivers/clk/keystone/pll.c
--- linux-libre-4.1-gnu/drivers/clk/keystone/pll.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/clk/keystone/pll.c	2015-08-16 23:52:51.000000000 -0400
@@ -37,7 +37,8 @@
  *	Main PLL or any other PLLs in the device such as ARM PLL, DDR PLL
  *	or PA PLL available on keystone2. These PLLs are controlled by
  *	this register. Main PLL is controlled by a PLL controller.
- * @pllm: PLL register map address
+ * @pllm: PLL register map address for multiplier bits
+ * @pllod: PLL register map address for post divider bits
  * @pll_ctl0: PLL controller map address
  * @pllm_lower_mask: multiplier lower mask
  * @pllm_upper_mask: multiplier upper mask
@@ -53,6 +54,7 @@ struct clk_pll_data {
 	u32 phy_pllm;
 	u32 phy_pll_ctl0;
 	void __iomem *pllm;
+	void __iomem *pllod;
 	void __iomem *pll_ctl0;
 	u32 pllm_lower_mask;
 	u32 pllm_upper_mask;
@@ -102,7 +104,11 @@ static unsigned long clk_pllclk_recalc(s
 		/* read post divider from od bits*/
 		postdiv = ((val & pll_data->clkod_mask) >>
 				 pll_data->clkod_shift) + 1;
-	else
+	else if (pll_data->pllod) {
+		postdiv = readl(pll_data->pllod);
+		postdiv = ((postdiv & pll_data->clkod_mask) >>
+				pll_data->clkod_shift) + 1;
+	} else
 		postdiv = pll_data->postdiv;
 
 	rate /= (prediv + 1);
@@ -172,12 +178,21 @@ static void __init _of_pll_clk_init(stru
 		/* assume the PLL has output divider register bits */
 		pll_data->clkod_mask = CLKOD_MASK;
 		pll_data->clkod_shift = CLKOD_SHIFT;
+
+		/*
+		 * Check if there is an post-divider register. If not
+		 * assume od bits are part of control register.
+		 */
+		i = of_property_match_string(node, "reg-names",
+					     "post-divider");
+		pll_data->pllod = of_iomap(node, i);
 	}
 
 	i = of_property_match_string(node, "reg-names", "control");
 	pll_data->pll_ctl0 = of_iomap(node, i);
 	if (!pll_data->pll_ctl0) {
 		pr_err("%s: ioremap failed\n", __func__);
+		iounmap(pll_data->pllod);
 		goto out;
 	}
 
@@ -193,6 +208,7 @@ static void __init _of_pll_clk_init(stru
 		pll_data->pllm = of_iomap(node, i);
 		if (!pll_data->pllm) {
 			iounmap(pll_data->pll_ctl0);
+			iounmap(pll_data->pllod);
 			goto out;
 		}
 	}
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/clk/qcom/clk-rcg2.c linux-libre-4.1.6-gnu/drivers/clk/qcom/clk-rcg2.c
--- linux-libre-4.1-gnu/drivers/clk/qcom/clk-rcg2.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/clk/qcom/clk-rcg2.c	2015-08-16 23:52:51.000000000 -0400
@@ -530,19 +530,16 @@ static int clk_pixel_set_rate(struct clk
 	struct clk_rcg2 *rcg = to_clk_rcg2(hw);
 	struct freq_tbl f = *rcg->freq_tbl;
 	const struct frac_entry *frac = frac_table_pixel;
-	unsigned long request, src_rate;
+	unsigned long request;
 	int delta = 100000;
 	u32 mask = BIT(rcg->hid_width) - 1;
 	u32 hid_div;
-	int index = qcom_find_src_index(hw, rcg->parent_map, f.src);
-	struct clk *parent = clk_get_parent_by_index(hw->clk, index);
 
 	for (; frac->num; frac++) {
 		request = (rate * frac->den) / frac->num;
 
-		src_rate = __clk_round_rate(parent, request);
-		if ((src_rate < (request - delta)) ||
-			(src_rate > (request + delta)))
+		if ((parent_rate < (request - delta)) ||
+			(parent_rate > (request + delta)))
 			continue;
 
 		regmap_read(rcg->clkr.regmap, rcg->cmd_rcgr + CFG_REG,
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/clk/st/clk-flexgen.c linux-libre-4.1.6-gnu/drivers/clk/st/clk-flexgen.c
--- linux-libre-4.1-gnu/drivers/clk/st/clk-flexgen.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/clk/st/clk-flexgen.c	2015-08-16 23:52:51.000000000 -0400
@@ -303,6 +303,8 @@ void __init st_of_flexgen_setup(struct d
 	if (!rlock)
 		goto err;
 
+	spin_lock_init(rlock);
+
 	for (i = 0; i < clk_data->clk_num; i++) {
 		struct clk *clk;
 		const char *clk_name;
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/clk/st/clkgen-fsyn.c linux-libre-4.1.6-gnu/drivers/clk/st/clkgen-fsyn.c
--- linux-libre-4.1-gnu/drivers/clk/st/clkgen-fsyn.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/clk/st/clkgen-fsyn.c	2015-08-16 23:52:51.000000000 -0400
@@ -340,7 +340,7 @@ static const struct clkgen_quadfs_data s
 		    CLKGEN_FIELD(0x30c, 0xf, 20),
 		    CLKGEN_FIELD(0x310, 0xf, 20) },
 	.lockstatus_present = true,
-	.lock_status = CLKGEN_FIELD(0x2A0, 0x1, 24),
+	.lock_status = CLKGEN_FIELD(0x2f0, 0x1, 24),
 	.powerup_polarity = 1,
 	.standby_polarity = 1,
 	.pll_ops	= &st_quadfs_pll_c32_ops,
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/clk/st/clkgen-mux.c linux-libre-4.1.6-gnu/drivers/clk/st/clkgen-mux.c
--- linux-libre-4.1-gnu/drivers/clk/st/clkgen-mux.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/clk/st/clkgen-mux.c	2015-08-16 23:52:51.000000000 -0400
@@ -582,7 +582,7 @@ static struct clkgen_mux_data stih416_a9
 };
 static struct clkgen_mux_data stih407_a9_mux_data = {
 	.offset = 0x1a4,
-	.shift = 1,
+	.shift = 0,
 	.width = 2,
 };
 
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/clk/ti/clk-dra7-atl.c linux-libre-4.1.6-gnu/drivers/clk/ti/clk-dra7-atl.c
--- linux-libre-4.1-gnu/drivers/clk/ti/clk-dra7-atl.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/clk/ti/clk-dra7-atl.c	2015-08-16 23:52:51.000000000 -0400
@@ -252,6 +252,11 @@ static int of_dra7_atl_clk_probe(struct
 		}
 
 		clk = of_clk_get_from_provider(&clkspec);
+		if (IS_ERR(clk)) {
+			pr_err("%s: failed to get atl clock %d from provider\n",
+			       __func__, i);
+			return PTR_ERR(clk);
+		}
 
 		cdesc = to_atl_desc(__clk_get_hw(clk));
 		cdesc->cinfo = cinfo;
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/clocksource/exynos_mct.c linux-libre-4.1.6-gnu/drivers/clocksource/exynos_mct.c
--- linux-libre-4.1-gnu/drivers/clocksource/exynos_mct.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/clocksource/exynos_mct.c	2015-08-16 23:52:51.000000000 -0400
@@ -466,15 +466,12 @@ static int exynos4_local_timer_setup(str
 	exynos4_mct_write(TICK_BASE_CNT, mevt->base + MCT_L_TCNTB_OFFSET);
 
 	if (mct_int_type == MCT_INT_SPI) {
-		evt->irq = mct_irqs[MCT_L0_IRQ + cpu];
-		if (request_irq(evt->irq, exynos4_mct_tick_isr,
-				IRQF_TIMER | IRQF_NOBALANCING,
-				evt->name, mevt)) {
-			pr_err("exynos-mct: cannot register IRQ %d\n",
-				evt->irq);
+
+		if (evt->irq == -1)
 			return -EIO;
-		}
-		irq_force_affinity(mct_irqs[MCT_L0_IRQ + cpu], cpumask_of(cpu));
+
+		irq_force_affinity(evt->irq, cpumask_of(cpu));
+		enable_irq(evt->irq);
 	} else {
 		enable_percpu_irq(mct_irqs[MCT_L0_IRQ], 0);
 	}
@@ -487,10 +484,12 @@ static int exynos4_local_timer_setup(str
 static void exynos4_local_timer_stop(struct clock_event_device *evt)
 {
 	evt->set_mode(CLOCK_EVT_MODE_UNUSED, evt);
-	if (mct_int_type == MCT_INT_SPI)
-		free_irq(evt->irq, this_cpu_ptr(&percpu_mct_tick));
-	else
+	if (mct_int_type == MCT_INT_SPI) {
+		if (evt->irq != -1)
+			disable_irq_nosync(evt->irq);
+	} else {
 		disable_percpu_irq(mct_irqs[MCT_L0_IRQ]);
+	}
 }
 
 static int exynos4_mct_cpu_notify(struct notifier_block *self,
@@ -522,7 +521,7 @@ static struct notifier_block exynos4_mct
 
 static void __init exynos4_timer_resources(struct device_node *np, void __iomem *base)
 {
-	int err;
+	int err, cpu;
 	struct mct_clock_event_device *mevt = this_cpu_ptr(&percpu_mct_tick);
 	struct clk *mct_clk, *tick_clk;
 
@@ -549,7 +548,25 @@ static void __init exynos4_timer_resourc
 		WARN(err, "MCT: can't request IRQ %d (%d)\n",
 		     mct_irqs[MCT_L0_IRQ], err);
 	} else {
-		irq_set_affinity(mct_irqs[MCT_L0_IRQ], cpumask_of(0));
+		for_each_possible_cpu(cpu) {
+			int mct_irq = mct_irqs[MCT_L0_IRQ + cpu];
+			struct mct_clock_event_device *pcpu_mevt =
+				per_cpu_ptr(&percpu_mct_tick, cpu);
+
+			pcpu_mevt->evt.irq = -1;
+
+			irq_set_status_flags(mct_irq, IRQ_NOAUTOEN);
+			if (request_irq(mct_irq,
+					exynos4_mct_tick_isr,
+					IRQF_TIMER | IRQF_NOBALANCING,
+					pcpu_mevt->name, pcpu_mevt)) {
+				pr_err("exynos-mct: cannot register IRQ (cpu%d)\n",
+									cpu);
+
+				continue;
+			}
+			pcpu_mevt->evt.irq = mct_irq;
+		}
 	}
 
 	err = register_cpu_notifier(&exynos4_mct_cpu_nb);
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/cpufreq/intel_pstate.c linux-libre-4.1.6-gnu/drivers/cpufreq/intel_pstate.c
--- linux-libre-4.1-gnu/drivers/cpufreq/intel_pstate.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/cpufreq/intel_pstate.c	2015-08-16 23:52:51.000000000 -0400
@@ -535,7 +535,7 @@ static void byt_set_pstate(struct cpudat
 
 	val |= vid;
 
-	wrmsrl(MSR_IA32_PERF_CTL, val);
+	wrmsrl_on_cpu(cpudata->cpu, MSR_IA32_PERF_CTL, val);
 }
 
 #define BYT_BCLK_FREQS 5
@@ -678,6 +678,7 @@ static struct cpu_defaults knl_params =
 		.get_max = core_get_max_pstate,
 		.get_min = core_get_min_pstate,
 		.get_turbo = knl_get_turbo_pstate,
+		.get_scaling = core_get_scaling,
 		.set = core_set_pstate,
 	},
 };
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/cpuidle/cpuidle-powernv.c linux-libre-4.1.6-gnu/drivers/cpuidle/cpuidle-powernv.c
--- linux-libre-4.1-gnu/drivers/cpuidle/cpuidle-powernv.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/cpuidle/cpuidle-powernv.c	2015-08-16 23:52:51.000000000 -0400
@@ -60,6 +60,8 @@ static int nap_loop(struct cpuidle_devic
 	return index;
 }
 
+/* Register for fastsleep only in oneshot mode of broadcast */
+#ifdef CONFIG_TICK_ONESHOT
 static int fastsleep_loop(struct cpuidle_device *dev,
 				struct cpuidle_driver *drv,
 				int index)
@@ -83,7 +85,7 @@ static int fastsleep_loop(struct cpuidle
 
 	return index;
 }
-
+#endif
 /*
  * States for dedicated partition case.
  */
@@ -209,7 +211,14 @@ static int powernv_add_idle_states(void)
 			powernv_states[nr_idle_states].flags = 0;
 			powernv_states[nr_idle_states].target_residency = 100;
 			powernv_states[nr_idle_states].enter = &nap_loop;
-		} else if (flags[i] & OPAL_PM_SLEEP_ENABLED ||
+		}
+
+		/*
+		 * All cpuidle states with CPUIDLE_FLAG_TIMER_STOP set must come
+		 * within this config dependency check.
+		 */
+#ifdef CONFIG_TICK_ONESHOT
+		if (flags[i] & OPAL_PM_SLEEP_ENABLED ||
 			flags[i] & OPAL_PM_SLEEP_ENABLED_ER1) {
 			/* Add FASTSLEEP state */
 			strcpy(powernv_states[nr_idle_states].name, "FastSleep");
@@ -218,7 +227,7 @@ static int powernv_add_idle_states(void)
 			powernv_states[nr_idle_states].target_residency = 300000;
 			powernv_states[nr_idle_states].enter = &fastsleep_loop;
 		}
-
+#endif
 		powernv_states[nr_idle_states].exit_latency =
 				((unsigned int)latency_ns[i]) / 1000;
 
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/crypto/ixp4xx_crypto.c linux-libre-4.1.6-gnu/drivers/crypto/ixp4xx_crypto.c
--- linux-libre-4.1-gnu/drivers/crypto/ixp4xx_crypto.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/crypto/ixp4xx_crypto.c	2015-08-16 23:52:51.000000000 -0400
@@ -904,7 +904,6 @@ static int ablk_perform(struct ablkciphe
 		crypt->mode |= NPE_OP_NOT_IN_PLACE;
 		/* This was never tested by Intel
 		 * for more than one dst buffer, I think. */
-		BUG_ON(req->dst->length < nbytes);
 		req_ctx->dst = NULL;
 		if (!chainup_buffers(dev, req->dst, nbytes, &dst_hook,
 					flags, DMA_FROM_DEVICE))
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/crypto/nx/nx-aes-ccm.c linux-libre-4.1.6-gnu/drivers/crypto/nx/nx-aes-ccm.c
--- linux-libre-4.1-gnu/drivers/crypto/nx/nx-aes-ccm.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/crypto/nx/nx-aes-ccm.c	2015-08-16 23:52:51.000000000 -0400
@@ -494,8 +494,9 @@ out:
 static int ccm4309_aes_nx_encrypt(struct aead_request *req)
 {
 	struct nx_crypto_ctx *nx_ctx = crypto_tfm_ctx(req->base.tfm);
+	struct nx_gcm_rctx *rctx = aead_request_ctx(req);
 	struct blkcipher_desc desc;
-	u8 *iv = nx_ctx->priv.ccm.iv;
+	u8 *iv = rctx->iv;
 
 	iv[0] = 3;
 	memcpy(iv + 1, nx_ctx->priv.ccm.nonce, 3);
@@ -525,8 +526,9 @@ static int ccm_aes_nx_encrypt(struct aea
 static int ccm4309_aes_nx_decrypt(struct aead_request *req)
 {
 	struct nx_crypto_ctx *nx_ctx = crypto_tfm_ctx(req->base.tfm);
+	struct nx_gcm_rctx *rctx = aead_request_ctx(req);
 	struct blkcipher_desc desc;
-	u8 *iv = nx_ctx->priv.ccm.iv;
+	u8 *iv = rctx->iv;
 
 	iv[0] = 3;
 	memcpy(iv + 1, nx_ctx->priv.ccm.nonce, 3);
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/crypto/nx/nx-aes-ctr.c linux-libre-4.1.6-gnu/drivers/crypto/nx/nx-aes-ctr.c
--- linux-libre-4.1-gnu/drivers/crypto/nx/nx-aes-ctr.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/crypto/nx/nx-aes-ctr.c	2015-08-16 23:52:51.000000000 -0400
@@ -72,7 +72,7 @@ static int ctr3686_aes_nx_set_key(struct
 	if (key_len < CTR_RFC3686_NONCE_SIZE)
 		return -EINVAL;
 
-	memcpy(nx_ctx->priv.ctr.iv,
+	memcpy(nx_ctx->priv.ctr.nonce,
 	       in_key + key_len - CTR_RFC3686_NONCE_SIZE,
 	       CTR_RFC3686_NONCE_SIZE);
 
@@ -131,14 +131,15 @@ static int ctr3686_aes_nx_crypt(struct b
 				unsigned int           nbytes)
 {
 	struct nx_crypto_ctx *nx_ctx = crypto_blkcipher_ctx(desc->tfm);
-	u8 *iv = nx_ctx->priv.ctr.iv;
+	u8 iv[16];
 
+	memcpy(iv, nx_ctx->priv.ctr.nonce, CTR_RFC3686_IV_SIZE);
 	memcpy(iv + CTR_RFC3686_NONCE_SIZE,
 	       desc->info, CTR_RFC3686_IV_SIZE);
 	iv[12] = iv[13] = iv[14] = 0;
 	iv[15] = 1;
 
-	desc->info = nx_ctx->priv.ctr.iv;
+	desc->info = iv;
 
 	return ctr_aes_nx_crypt(desc, dst, src, nbytes);
 }
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/crypto/nx/nx-aes-gcm.c linux-libre-4.1.6-gnu/drivers/crypto/nx/nx-aes-gcm.c
--- linux-libre-4.1-gnu/drivers/crypto/nx/nx-aes-gcm.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/crypto/nx/nx-aes-gcm.c	2015-08-16 23:52:51.000000000 -0400
@@ -330,6 +330,7 @@ out:
 static int gcm_aes_nx_crypt(struct aead_request *req, int enc)
 {
 	struct nx_crypto_ctx *nx_ctx = crypto_tfm_ctx(req->base.tfm);
+	struct nx_gcm_rctx *rctx = aead_request_ctx(req);
 	struct nx_csbcpb *csbcpb = nx_ctx->csbcpb;
 	struct blkcipher_desc desc;
 	unsigned int nbytes = req->cryptlen;
@@ -339,7 +340,7 @@ static int gcm_aes_nx_crypt(struct aead_
 
 	spin_lock_irqsave(&nx_ctx->lock, irq_flags);
 
-	desc.info = nx_ctx->priv.gcm.iv;
+	desc.info = rctx->iv;
 	/* initialize the counter */
 	*(u32 *)(desc.info + NX_GCM_CTR_OFFSET) = 1;
 
@@ -434,8 +435,8 @@ out:
 
 static int gcm_aes_nx_encrypt(struct aead_request *req)
 {
-	struct nx_crypto_ctx *nx_ctx = crypto_tfm_ctx(req->base.tfm);
-	char *iv = nx_ctx->priv.gcm.iv;
+	struct nx_gcm_rctx *rctx = aead_request_ctx(req);
+	char *iv = rctx->iv;
 
 	memcpy(iv, req->iv, 12);
 
@@ -444,8 +445,8 @@ static int gcm_aes_nx_encrypt(struct aea
 
 static int gcm_aes_nx_decrypt(struct aead_request *req)
 {
-	struct nx_crypto_ctx *nx_ctx = crypto_tfm_ctx(req->base.tfm);
-	char *iv = nx_ctx->priv.gcm.iv;
+	struct nx_gcm_rctx *rctx = aead_request_ctx(req);
+	char *iv = rctx->iv;
 
 	memcpy(iv, req->iv, 12);
 
@@ -455,7 +456,8 @@ static int gcm_aes_nx_decrypt(struct aea
 static int gcm4106_aes_nx_encrypt(struct aead_request *req)
 {
 	struct nx_crypto_ctx *nx_ctx = crypto_tfm_ctx(req->base.tfm);
-	char *iv = nx_ctx->priv.gcm.iv;
+	struct nx_gcm_rctx *rctx = aead_request_ctx(req);
+	char *iv = rctx->iv;
 	char *nonce = nx_ctx->priv.gcm.nonce;
 
 	memcpy(iv, nonce, NX_GCM4106_NONCE_LEN);
@@ -467,7 +469,8 @@ static int gcm4106_aes_nx_encrypt(struct
 static int gcm4106_aes_nx_decrypt(struct aead_request *req)
 {
 	struct nx_crypto_ctx *nx_ctx = crypto_tfm_ctx(req->base.tfm);
-	char *iv = nx_ctx->priv.gcm.iv;
+	struct nx_gcm_rctx *rctx = aead_request_ctx(req);
+	char *iv = rctx->iv;
 	char *nonce = nx_ctx->priv.gcm.nonce;
 
 	memcpy(iv, nonce, NX_GCM4106_NONCE_LEN);
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/crypto/nx/nx-aes-xcbc.c linux-libre-4.1.6-gnu/drivers/crypto/nx/nx-aes-xcbc.c
--- linux-libre-4.1-gnu/drivers/crypto/nx/nx-aes-xcbc.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/crypto/nx/nx-aes-xcbc.c	2015-08-16 23:52:51.000000000 -0400
@@ -42,6 +42,7 @@ static int nx_xcbc_set_key(struct crypto
 			   unsigned int         key_len)
 {
 	struct nx_crypto_ctx *nx_ctx = crypto_shash_ctx(desc);
+	struct nx_csbcpb *csbcpb = nx_ctx->csbcpb;
 
 	switch (key_len) {
 	case AES_KEYSIZE_128:
@@ -51,7 +52,7 @@ static int nx_xcbc_set_key(struct crypto
 		return -EINVAL;
 	}
 
-	memcpy(nx_ctx->priv.xcbc.key, in_key, key_len);
+	memcpy(csbcpb->cpb.aes_xcbc.key, in_key, key_len);
 
 	return 0;
 }
@@ -148,32 +149,29 @@ out:
 	return rc;
 }
 
-static int nx_xcbc_init(struct shash_desc *desc)
+static int nx_crypto_ctx_aes_xcbc_init2(struct crypto_tfm *tfm)
 {
-	struct xcbc_state *sctx = shash_desc_ctx(desc);
-	struct nx_crypto_ctx *nx_ctx = crypto_tfm_ctx(&desc->tfm->base);
+	struct nx_crypto_ctx *nx_ctx = crypto_tfm_ctx(tfm);
 	struct nx_csbcpb *csbcpb = nx_ctx->csbcpb;
-	struct nx_sg *out_sg;
-	int len;
+	int err;
 
-	nx_ctx_init(nx_ctx, HCOP_FC_AES);
+	err = nx_crypto_ctx_aes_xcbc_init(tfm);
+	if (err)
+		return err;
 
-	memset(sctx, 0, sizeof *sctx);
+	nx_ctx_init(nx_ctx, HCOP_FC_AES);
 
 	NX_CPB_SET_KEY_SIZE(csbcpb, NX_KS_AES_128);
 	csbcpb->cpb.hdr.mode = NX_MODE_AES_XCBC_MAC;
 
-	memcpy(csbcpb->cpb.aes_xcbc.key, nx_ctx->priv.xcbc.key, AES_BLOCK_SIZE);
-	memset(nx_ctx->priv.xcbc.key, 0, sizeof *nx_ctx->priv.xcbc.key);
-
-	len = AES_BLOCK_SIZE;
-	out_sg = nx_build_sg_list(nx_ctx->out_sg, (u8 *)sctx->state,
-				  &len, nx_ctx->ap->sglen);
+	return 0;
+}
 
-	if (len != AES_BLOCK_SIZE)
-		return -EINVAL;
+static int nx_xcbc_init(struct shash_desc *desc)
+{
+	struct xcbc_state *sctx = shash_desc_ctx(desc);
 
-	nx_ctx->op.outlen = (nx_ctx->out_sg - out_sg) * sizeof(struct nx_sg);
+	memset(sctx, 0, sizeof *sctx);
 
 	return 0;
 }
@@ -186,6 +184,7 @@ static int nx_xcbc_update(struct shash_d
 	struct nx_crypto_ctx *nx_ctx = crypto_tfm_ctx(&desc->tfm->base);
 	struct nx_csbcpb *csbcpb = nx_ctx->csbcpb;
 	struct nx_sg *in_sg;
+	struct nx_sg *out_sg;
 	u32 to_process = 0, leftover, total;
 	unsigned int max_sg_len;
 	unsigned long irq_flags;
@@ -213,6 +212,17 @@ static int nx_xcbc_update(struct shash_d
 	max_sg_len = min_t(u64, max_sg_len,
 				nx_ctx->ap->databytelen/NX_PAGE_SIZE);
 
+	data_len = AES_BLOCK_SIZE;
+	out_sg = nx_build_sg_list(nx_ctx->out_sg, (u8 *)sctx->state,
+				  &len, nx_ctx->ap->sglen);
+
+	if (data_len != AES_BLOCK_SIZE) {
+		rc = -EINVAL;
+		goto out;
+	}
+
+	nx_ctx->op.outlen = (nx_ctx->out_sg - out_sg) * sizeof(struct nx_sg);
+
 	do {
 		to_process = total - to_process;
 		to_process = to_process & ~(AES_BLOCK_SIZE - 1);
@@ -235,8 +245,10 @@ static int nx_xcbc_update(struct shash_d
 						(u8 *) sctx->buffer,
 						&data_len,
 						max_sg_len);
-			if (data_len != sctx->count)
-				return -EINVAL;
+			if (data_len != sctx->count) {
+				rc = -EINVAL;
+				goto out;
+			}
 		}
 
 		data_len = to_process - sctx->count;
@@ -245,8 +257,10 @@ static int nx_xcbc_update(struct shash_d
 					&data_len,
 					max_sg_len);
 
-		if (data_len != to_process - sctx->count)
-			return -EINVAL;
+		if (data_len != to_process - sctx->count) {
+			rc = -EINVAL;
+			goto out;
+		}
 
 		nx_ctx->op.inlen = (nx_ctx->in_sg - in_sg) *
 					sizeof(struct nx_sg);
@@ -325,15 +339,19 @@ static int nx_xcbc_final(struct shash_de
 	in_sg = nx_build_sg_list(nx_ctx->in_sg, (u8 *)sctx->buffer,
 				 &len, nx_ctx->ap->sglen);
 
-	if (len != sctx->count)
-		return -EINVAL;
+	if (len != sctx->count) {
+		rc = -EINVAL;
+		goto out;
+	}
 
 	len = AES_BLOCK_SIZE;
 	out_sg = nx_build_sg_list(nx_ctx->out_sg, out, &len,
 				  nx_ctx->ap->sglen);
 
-	if (len != AES_BLOCK_SIZE)
-		return -EINVAL;
+	if (len != AES_BLOCK_SIZE) {
+		rc = -EINVAL;
+		goto out;
+	}
 
 	nx_ctx->op.inlen = (nx_ctx->in_sg - in_sg) * sizeof(struct nx_sg);
 	nx_ctx->op.outlen = (nx_ctx->out_sg - out_sg) * sizeof(struct nx_sg);
@@ -372,7 +390,7 @@ struct shash_alg nx_shash_aes_xcbc_alg =
 		.cra_blocksize   = AES_BLOCK_SIZE,
 		.cra_module      = THIS_MODULE,
 		.cra_ctxsize     = sizeof(struct nx_crypto_ctx),
-		.cra_init        = nx_crypto_ctx_aes_xcbc_init,
+		.cra_init        = nx_crypto_ctx_aes_xcbc_init2,
 		.cra_exit        = nx_crypto_ctx_exit,
 	}
 };
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/crypto/nx/nx.c linux-libre-4.1.6-gnu/drivers/crypto/nx/nx.c
--- linux-libre-4.1-gnu/drivers/crypto/nx/nx.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/crypto/nx/nx.c	2015-08-16 23:52:51.000000000 -0400
@@ -215,8 +215,15 @@ struct nx_sg *nx_walk_and_build(struct n
  * @delta:  is the amount we need to crop in order to bound the list.
  *
  */
-static long int trim_sg_list(struct nx_sg *sg, struct nx_sg *end, unsigned int delta)
+static long int trim_sg_list(struct nx_sg *sg,
+			     struct nx_sg *end,
+			     unsigned int delta,
+			     unsigned int *nbytes)
 {
+	long int oplen;
+	long int data_back;
+	unsigned int is_delta = delta;
+
 	while (delta && end > sg) {
 		struct nx_sg *last = end - 1;
 
@@ -228,54 +235,20 @@ static long int trim_sg_list(struct nx_s
 			delta -= last->len;
 		}
 	}
-	return (sg - end) * sizeof(struct nx_sg);
-}
-
-/**
- * nx_sha_build_sg_list - walk and build sg list to sha modes
- *			  using right bounds and limits.
- * @nx_ctx: NX crypto context for the lists we're building
- * @nx_sg: current sg list in or out list
- * @op_len: current op_len to be used in order to build a sg list
- * @nbytes:  number or bytes to be processed
- * @offset: buf offset
- * @mode: SHA256 or SHA512
- */
-int nx_sha_build_sg_list(struct nx_crypto_ctx *nx_ctx,
-			  struct nx_sg 	      *nx_in_outsg,
-			  s64		      *op_len,
-			  unsigned int        *nbytes,
-			  u8 		      *offset,
-			  u32		      mode)
-{
-	unsigned int delta = 0;
-	unsigned int total = *nbytes;
-	struct nx_sg *nx_insg = nx_in_outsg;
-	unsigned int max_sg_len;
 
-	max_sg_len = min_t(u64, nx_ctx->ap->sglen,
-			nx_driver.of.max_sg_len/sizeof(struct nx_sg));
-	max_sg_len = min_t(u64, max_sg_len,
-			nx_ctx->ap->databytelen/NX_PAGE_SIZE);
-
-	*nbytes = min_t(u64, *nbytes, nx_ctx->ap->databytelen);
-	nx_insg = nx_build_sg_list(nx_insg, offset, nbytes, max_sg_len);
-
-	switch (mode) {
-	case NX_DS_SHA256:
-		if (*nbytes < total)
-			delta = *nbytes - (*nbytes & ~(SHA256_BLOCK_SIZE - 1));
-		break;
-	case NX_DS_SHA512:
-		if (*nbytes < total)
-			delta = *nbytes - (*nbytes & ~(SHA512_BLOCK_SIZE - 1));
-		break;
-	default:
-		return -EINVAL;
+	/* There are cases where we need to crop list in order to make it
+	 * a block size multiple, but we also need to align data. In order to
+	 * that we need to calculate how much we need to put back to be
+	 * processed
+	 */
+	oplen = (sg - end) * sizeof(struct nx_sg);
+	if (is_delta) {
+		data_back = (abs(oplen) / AES_BLOCK_SIZE) *  sg->len;
+		data_back = *nbytes - (data_back & ~(AES_BLOCK_SIZE - 1));
+		*nbytes -= data_back;
 	}
-	*op_len = trim_sg_list(nx_in_outsg, nx_insg, delta);
 
-	return 0;
+	return oplen;
 }
 
 /**
@@ -330,8 +303,8 @@ int nx_build_sg_lists(struct nx_crypto_c
 	/* these lengths should be negative, which will indicate to phyp that
 	 * the input and output parameters are scatterlists, not linear
 	 * buffers */
-	nx_ctx->op.inlen = trim_sg_list(nx_ctx->in_sg, nx_insg, delta);
-	nx_ctx->op.outlen = trim_sg_list(nx_ctx->out_sg, nx_outsg, delta);
+	nx_ctx->op.inlen = trim_sg_list(nx_ctx->in_sg, nx_insg, delta, nbytes);
+	nx_ctx->op.outlen = trim_sg_list(nx_ctx->out_sg, nx_outsg, delta, nbytes);
 
 	return 0;
 }
@@ -662,12 +635,14 @@ static int nx_crypto_ctx_init(struct nx_
 /* entry points from the crypto tfm initializers */
 int nx_crypto_ctx_aes_ccm_init(struct crypto_tfm *tfm)
 {
+	tfm->crt_aead.reqsize = sizeof(struct nx_ccm_rctx);
 	return nx_crypto_ctx_init(crypto_tfm_ctx(tfm), NX_FC_AES,
 				  NX_MODE_AES_CCM);
 }
 
 int nx_crypto_ctx_aes_gcm_init(struct crypto_tfm *tfm)
 {
+	tfm->crt_aead.reqsize = sizeof(struct nx_gcm_rctx);
 	return nx_crypto_ctx_init(crypto_tfm_ctx(tfm), NX_FC_AES,
 				  NX_MODE_AES_GCM);
 }
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/crypto/nx/nx.h linux-libre-4.1.6-gnu/drivers/crypto/nx/nx.h
--- linux-libre-4.1-gnu/drivers/crypto/nx/nx.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/crypto/nx/nx.h	2015-08-16 23:52:51.000000000 -0400
@@ -2,6 +2,8 @@
 #ifndef __NX_H__
 #define __NX_H__
 
+#include <crypto/ctr.h>
+
 #define NX_NAME		"nx-crypto"
 #define NX_STRING	"IBM Power7+ Nest Accelerator Crypto Driver"
 #define NX_VERSION	"1.0"
@@ -91,8 +93,11 @@ struct nx_crypto_driver {
 
 #define NX_GCM4106_NONCE_LEN		(4)
 #define NX_GCM_CTR_OFFSET		(12)
-struct nx_gcm_priv {
+struct nx_gcm_rctx {
 	u8 iv[16];
+};
+
+struct nx_gcm_priv {
 	u8 iauth_tag[16];
 	u8 nonce[NX_GCM4106_NONCE_LEN];
 };
@@ -100,8 +105,11 @@ struct nx_gcm_priv {
 #define NX_CCM_AES_KEY_LEN		(16)
 #define NX_CCM4309_AES_KEY_LEN		(19)
 #define NX_CCM4309_NONCE_LEN		(3)
-struct nx_ccm_priv {
+struct nx_ccm_rctx {
 	u8 iv[16];
+};
+
+struct nx_ccm_priv {
 	u8 b0[16];
 	u8 iauth_tag[16];
 	u8 oauth_tag[16];
@@ -113,7 +121,7 @@ struct nx_xcbc_priv {
 };
 
 struct nx_ctr_priv {
-	u8 iv[16];
+	u8 nonce[CTR_RFC3686_NONCE_SIZE];
 };
 
 struct nx_crypto_ctx {
@@ -153,8 +161,6 @@ void nx_crypto_ctx_exit(struct crypto_tf
 void nx_ctx_init(struct nx_crypto_ctx *nx_ctx, unsigned int function);
 int nx_hcall_sync(struct nx_crypto_ctx *ctx, struct vio_pfo_op *op,
 		  u32 may_sleep);
-int nx_sha_build_sg_list(struct nx_crypto_ctx *, struct nx_sg *,
-			 s64 *, unsigned int *, u8 *, u32);
 struct nx_sg *nx_build_sg_list(struct nx_sg *, u8 *, unsigned int *, u32);
 int nx_build_sg_lists(struct nx_crypto_ctx *, struct blkcipher_desc *,
 		      struct scatterlist *, struct scatterlist *, unsigned int *,
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/crypto/nx/nx-sha256.c linux-libre-4.1.6-gnu/drivers/crypto/nx/nx-sha256.c
--- linux-libre-4.1-gnu/drivers/crypto/nx/nx-sha256.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/crypto/nx/nx-sha256.c	2015-08-16 23:52:51.000000000 -0400
@@ -29,30 +29,28 @@
 #include "nx.h"
 
 
-static int nx_sha256_init(struct shash_desc *desc)
+static int nx_crypto_ctx_sha256_init(struct crypto_tfm *tfm)
 {
-	struct sha256_state *sctx = shash_desc_ctx(desc);
-	struct nx_crypto_ctx *nx_ctx = crypto_tfm_ctx(&desc->tfm->base);
-	int len;
-	int rc;
+	struct nx_crypto_ctx *nx_ctx = crypto_tfm_ctx(tfm);
+	int err;
 
-	nx_ctx_init(nx_ctx, HCOP_FC_SHA);
+	err = nx_crypto_ctx_sha_init(tfm);
+	if (err)
+		return err;
 
-	memset(sctx, 0, sizeof *sctx);
+	nx_ctx_init(nx_ctx, HCOP_FC_SHA);
 
 	nx_ctx->ap = &nx_ctx->props[NX_PROPS_SHA256];
 
 	NX_CPB_SET_DIGEST_SIZE(nx_ctx->csbcpb, NX_DS_SHA256);
 
-	len = SHA256_DIGEST_SIZE;
-	rc = nx_sha_build_sg_list(nx_ctx, nx_ctx->out_sg,
-				  &nx_ctx->op.outlen,
-				  &len,
-				  (u8 *) sctx->state,
-				  NX_DS_SHA256);
+	return 0;
+}
 
-	if (rc)
-		goto out;
+static int nx_sha256_init(struct shash_desc *desc) {
+	struct sha256_state *sctx = shash_desc_ctx(desc);
+
+	memset(sctx, 0, sizeof *sctx);
 
 	sctx->state[0] = __cpu_to_be32(SHA256_H0);
 	sctx->state[1] = __cpu_to_be32(SHA256_H1);
@@ -64,7 +62,6 @@ static int nx_sha256_init(struct shash_d
 	sctx->state[7] = __cpu_to_be32(SHA256_H7);
 	sctx->count = 0;
 
-out:
 	return 0;
 }
 
@@ -74,10 +71,13 @@ static int nx_sha256_update(struct shash
 	struct sha256_state *sctx = shash_desc_ctx(desc);
 	struct nx_crypto_ctx *nx_ctx = crypto_tfm_ctx(&desc->tfm->base);
 	struct nx_csbcpb *csbcpb = (struct nx_csbcpb *)nx_ctx->csbcpb;
+	struct nx_sg *in_sg;
+	struct nx_sg *out_sg;
 	u64 to_process = 0, leftover, total;
 	unsigned long irq_flags;
 	int rc = 0;
 	int data_len;
+	u32 max_sg_len;
 	u64 buf_len = (sctx->count % SHA256_BLOCK_SIZE);
 
 	spin_lock_irqsave(&nx_ctx->lock, irq_flags);
@@ -97,6 +97,22 @@ static int nx_sha256_update(struct shash
 	NX_CPB_FDM(csbcpb) |= NX_FDM_INTERMEDIATE;
 	NX_CPB_FDM(csbcpb) |= NX_FDM_CONTINUATION;
 
+	in_sg = nx_ctx->in_sg;
+	max_sg_len = min_t(u64, nx_ctx->ap->sglen,
+			nx_driver.of.max_sg_len/sizeof(struct nx_sg));
+	max_sg_len = min_t(u64, max_sg_len,
+			nx_ctx->ap->databytelen/NX_PAGE_SIZE);
+
+	data_len = SHA256_DIGEST_SIZE;
+	out_sg = nx_build_sg_list(nx_ctx->out_sg, (u8 *)sctx->state,
+				  &data_len, max_sg_len);
+	nx_ctx->op.outlen = (nx_ctx->out_sg - out_sg) * sizeof(struct nx_sg);
+
+	if (data_len != SHA256_DIGEST_SIZE) {
+		rc = -EINVAL;
+		goto out;
+	}
+
 	do {
 		/*
 		 * to_process: the SHA256_BLOCK_SIZE data chunk to process in
@@ -108,25 +124,22 @@ static int nx_sha256_update(struct shash
 
 		if (buf_len) {
 			data_len = buf_len;
-			rc = nx_sha_build_sg_list(nx_ctx, nx_ctx->in_sg,
-						  &nx_ctx->op.inlen,
-						  &data_len,
-						  (u8 *) sctx->buf,
-						  NX_DS_SHA256);
+			in_sg = nx_build_sg_list(nx_ctx->in_sg,
+						 (u8 *) sctx->buf,
+						 &data_len,
+						 max_sg_len);
 
-			if (rc || data_len != buf_len)
+			if (data_len != buf_len) {
+				rc = -EINVAL;
 				goto out;
+			}
 		}
 
 		data_len = to_process - buf_len;
-		rc = nx_sha_build_sg_list(nx_ctx, nx_ctx->in_sg,
-					  &nx_ctx->op.inlen,
-					  &data_len,
-					  (u8 *) data,
-					  NX_DS_SHA256);
+		in_sg = nx_build_sg_list(in_sg, (u8 *) data,
+					 &data_len, max_sg_len);
 
-		if (rc)
-			goto out;
+		nx_ctx->op.inlen = (nx_ctx->in_sg - in_sg) * sizeof(struct nx_sg);
 
 		to_process = (data_len + buf_len);
 		leftover = total - to_process;
@@ -173,12 +186,19 @@ static int nx_sha256_final(struct shash_
 	struct sha256_state *sctx = shash_desc_ctx(desc);
 	struct nx_crypto_ctx *nx_ctx = crypto_tfm_ctx(&desc->tfm->base);
 	struct nx_csbcpb *csbcpb = (struct nx_csbcpb *)nx_ctx->csbcpb;
+	struct nx_sg *in_sg, *out_sg;
 	unsigned long irq_flags;
-	int rc;
+	u32 max_sg_len;
+	int rc = 0;
 	int len;
 
 	spin_lock_irqsave(&nx_ctx->lock, irq_flags);
 
+	max_sg_len = min_t(u64, nx_ctx->ap->sglen,
+			nx_driver.of.max_sg_len/sizeof(struct nx_sg));
+	max_sg_len = min_t(u64, max_sg_len,
+			nx_ctx->ap->databytelen/NX_PAGE_SIZE);
+
 	/* final is represented by continuing the operation and indicating that
 	 * this is not an intermediate operation */
 	if (sctx->count >= SHA256_BLOCK_SIZE) {
@@ -195,25 +215,24 @@ static int nx_sha256_final(struct shash_
 	csbcpb->cpb.sha256.message_bit_length = (u64) (sctx->count * 8);
 
 	len = sctx->count & (SHA256_BLOCK_SIZE - 1);
-	rc = nx_sha_build_sg_list(nx_ctx, nx_ctx->in_sg,
-				  &nx_ctx->op.inlen,
-				  &len,
-				  (u8 *) sctx->buf,
-				  NX_DS_SHA256);
+	in_sg = nx_build_sg_list(nx_ctx->in_sg, (u8 *) sctx->buf,
+				 &len, max_sg_len);
 
-	if (rc || len != (sctx->count & (SHA256_BLOCK_SIZE - 1)))
+	if (len != (sctx->count & (SHA256_BLOCK_SIZE - 1))) {
+		rc = -EINVAL;
 		goto out;
+	}
 
 	len = SHA256_DIGEST_SIZE;
-	rc = nx_sha_build_sg_list(nx_ctx, nx_ctx->out_sg,
-				  &nx_ctx->op.outlen,
-				  &len,
-				  out,
-				  NX_DS_SHA256);
+	out_sg = nx_build_sg_list(nx_ctx->out_sg, out, &len, max_sg_len);
 
-	if (rc || len != SHA256_DIGEST_SIZE)
+	if (len != SHA256_DIGEST_SIZE) {
+		rc = -EINVAL;
 		goto out;
+	}
 
+	nx_ctx->op.inlen = (nx_ctx->in_sg - in_sg) * sizeof(struct nx_sg);
+	nx_ctx->op.outlen = (nx_ctx->out_sg - out_sg) * sizeof(struct nx_sg);
 	if (!nx_ctx->op.outlen) {
 		rc = -EINVAL;
 		goto out;
@@ -268,7 +287,7 @@ struct shash_alg nx_shash_sha256_alg = {
 		.cra_blocksize   = SHA256_BLOCK_SIZE,
 		.cra_module      = THIS_MODULE,
 		.cra_ctxsize     = sizeof(struct nx_crypto_ctx),
-		.cra_init        = nx_crypto_ctx_sha_init,
+		.cra_init        = nx_crypto_ctx_sha256_init,
 		.cra_exit        = nx_crypto_ctx_exit,
 	}
 };
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/crypto/nx/nx-sha512.c linux-libre-4.1.6-gnu/drivers/crypto/nx/nx-sha512.c
--- linux-libre-4.1-gnu/drivers/crypto/nx/nx-sha512.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/crypto/nx/nx-sha512.c	2015-08-16 23:52:51.000000000 -0400
@@ -28,30 +28,29 @@
 #include "nx.h"
 
 
-static int nx_sha512_init(struct shash_desc *desc)
+static int nx_crypto_ctx_sha512_init(struct crypto_tfm *tfm)
 {
-	struct sha512_state *sctx = shash_desc_ctx(desc);
-	struct nx_crypto_ctx *nx_ctx = crypto_tfm_ctx(&desc->tfm->base);
-	int len;
-	int rc;
+	struct nx_crypto_ctx *nx_ctx = crypto_tfm_ctx(tfm);
+	int err;
 
-	nx_ctx_init(nx_ctx, HCOP_FC_SHA);
+	err = nx_crypto_ctx_sha_init(tfm);
+	if (err)
+		return err;
 
-	memset(sctx, 0, sizeof *sctx);
+	nx_ctx_init(nx_ctx, HCOP_FC_SHA);
 
 	nx_ctx->ap = &nx_ctx->props[NX_PROPS_SHA512];
 
 	NX_CPB_SET_DIGEST_SIZE(nx_ctx->csbcpb, NX_DS_SHA512);
 
-	len = SHA512_DIGEST_SIZE;
-	rc = nx_sha_build_sg_list(nx_ctx, nx_ctx->out_sg,
-				  &nx_ctx->op.outlen,
-				  &len,
-				  (u8 *)sctx->state,
-				  NX_DS_SHA512);
+	return 0;
+}
 
-	if (rc || len != SHA512_DIGEST_SIZE)
-		goto out;
+static int nx_sha512_init(struct shash_desc *desc)
+{
+	struct sha512_state *sctx = shash_desc_ctx(desc);
+
+	memset(sctx, 0, sizeof *sctx);
 
 	sctx->state[0] = __cpu_to_be64(SHA512_H0);
 	sctx->state[1] = __cpu_to_be64(SHA512_H1);
@@ -63,7 +62,6 @@ static int nx_sha512_init(struct shash_d
 	sctx->state[7] = __cpu_to_be64(SHA512_H7);
 	sctx->count[0] = 0;
 
-out:
 	return 0;
 }
 
@@ -73,10 +71,13 @@ static int nx_sha512_update(struct shash
 	struct sha512_state *sctx = shash_desc_ctx(desc);
 	struct nx_crypto_ctx *nx_ctx = crypto_tfm_ctx(&desc->tfm->base);
 	struct nx_csbcpb *csbcpb = (struct nx_csbcpb *)nx_ctx->csbcpb;
+	struct nx_sg *in_sg;
+	struct nx_sg *out_sg;
 	u64 to_process, leftover = 0, total;
 	unsigned long irq_flags;
 	int rc = 0;
 	int data_len;
+	u32 max_sg_len;
 	u64 buf_len = (sctx->count[0] % SHA512_BLOCK_SIZE);
 
 	spin_lock_irqsave(&nx_ctx->lock, irq_flags);
@@ -96,6 +97,22 @@ static int nx_sha512_update(struct shash
 	NX_CPB_FDM(csbcpb) |= NX_FDM_INTERMEDIATE;
 	NX_CPB_FDM(csbcpb) |= NX_FDM_CONTINUATION;
 
+	in_sg = nx_ctx->in_sg;
+	max_sg_len = min_t(u64, nx_ctx->ap->sglen,
+			nx_driver.of.max_sg_len/sizeof(struct nx_sg));
+	max_sg_len = min_t(u64, max_sg_len,
+			nx_ctx->ap->databytelen/NX_PAGE_SIZE);
+
+	data_len = SHA512_DIGEST_SIZE;
+	out_sg = nx_build_sg_list(nx_ctx->out_sg, (u8 *)sctx->state,
+				  &data_len, max_sg_len);
+	nx_ctx->op.outlen = (nx_ctx->out_sg - out_sg) * sizeof(struct nx_sg);
+
+	if (data_len != SHA512_DIGEST_SIZE) {
+		rc = -EINVAL;
+		goto out;
+	}
+
 	do {
 		/*
 		 * to_process: the SHA512_BLOCK_SIZE data chunk to process in
@@ -108,25 +125,26 @@ static int nx_sha512_update(struct shash
 
 		if (buf_len) {
 			data_len = buf_len;
-			rc = nx_sha_build_sg_list(nx_ctx, nx_ctx->in_sg,
-						  &nx_ctx->op.inlen,
-						  &data_len,
-						  (u8 *) sctx->buf,
-						  NX_DS_SHA512);
+			in_sg = nx_build_sg_list(nx_ctx->in_sg,
+						 (u8 *) sctx->buf,
+						 &data_len, max_sg_len);
 
-			if (rc || data_len != buf_len)
+			if (data_len != buf_len) {
+				rc = -EINVAL;
 				goto out;
+			}
 		}
 
 		data_len = to_process - buf_len;
-		rc = nx_sha_build_sg_list(nx_ctx, nx_ctx->in_sg,
-					  &nx_ctx->op.inlen,
-					  &data_len,
-					  (u8 *) data,
-					  NX_DS_SHA512);
+		in_sg = nx_build_sg_list(in_sg, (u8 *) data,
+					 &data_len, max_sg_len);
 
-		if (rc || data_len != (to_process - buf_len))
+		nx_ctx->op.inlen = (nx_ctx->in_sg - in_sg) * sizeof(struct nx_sg);
+
+		if (data_len != (to_process - buf_len)) {
+			rc = -EINVAL;
 			goto out;
+		}
 
 		to_process = (data_len + buf_len);
 		leftover = total - to_process;
@@ -172,13 +190,20 @@ static int nx_sha512_final(struct shash_
 	struct sha512_state *sctx = shash_desc_ctx(desc);
 	struct nx_crypto_ctx *nx_ctx = crypto_tfm_ctx(&desc->tfm->base);
 	struct nx_csbcpb *csbcpb = (struct nx_csbcpb *)nx_ctx->csbcpb;
+	struct nx_sg *in_sg, *out_sg;
+	u32 max_sg_len;
 	u64 count0;
 	unsigned long irq_flags;
-	int rc;
+	int rc = 0;
 	int len;
 
 	spin_lock_irqsave(&nx_ctx->lock, irq_flags);
 
+	max_sg_len = min_t(u64, nx_ctx->ap->sglen,
+			nx_driver.of.max_sg_len/sizeof(struct nx_sg));
+	max_sg_len = min_t(u64, max_sg_len,
+			nx_ctx->ap->databytelen/NX_PAGE_SIZE);
+
 	/* final is represented by continuing the operation and indicating that
 	 * this is not an intermediate operation */
 	if (sctx->count[0] >= SHA512_BLOCK_SIZE) {
@@ -200,24 +225,20 @@ static int nx_sha512_final(struct shash_
 	csbcpb->cpb.sha512.message_bit_length_lo = count0;
 
 	len = sctx->count[0] & (SHA512_BLOCK_SIZE - 1);
-	rc = nx_sha_build_sg_list(nx_ctx, nx_ctx->in_sg,
-				  &nx_ctx->op.inlen,
-				  &len,
-				  (u8 *)sctx->buf,
-				  NX_DS_SHA512);
+	in_sg = nx_build_sg_list(nx_ctx->in_sg, sctx->buf, &len,
+				 max_sg_len);
 
-	if (rc || len != (sctx->count[0] & (SHA512_BLOCK_SIZE - 1)))
+	if (len != (sctx->count[0] & (SHA512_BLOCK_SIZE - 1))) {
+		rc = -EINVAL;
 		goto out;
+	}
 
 	len = SHA512_DIGEST_SIZE;
-	rc = nx_sha_build_sg_list(nx_ctx, nx_ctx->out_sg,
-				  &nx_ctx->op.outlen,
-				  &len,
-				  out,
-				  NX_DS_SHA512);
+	out_sg = nx_build_sg_list(nx_ctx->out_sg, out, &len,
+				 max_sg_len);
 
-	if (rc)
-		goto out;
+	nx_ctx->op.inlen = (nx_ctx->in_sg - in_sg) * sizeof(struct nx_sg);
+	nx_ctx->op.outlen = (nx_ctx->out_sg - out_sg) * sizeof(struct nx_sg);
 
 	if (!nx_ctx->op.outlen) {
 		rc = -EINVAL;
@@ -273,7 +294,7 @@ struct shash_alg nx_shash_sha512_alg = {
 		.cra_blocksize   = SHA512_BLOCK_SIZE,
 		.cra_module      = THIS_MODULE,
 		.cra_ctxsize     = sizeof(struct nx_crypto_ctx),
-		.cra_init        = nx_crypto_ctx_sha_init,
+		.cra_init        = nx_crypto_ctx_sha512_init,
 		.cra_exit        = nx_crypto_ctx_exit,
 	}
 };
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/crypto/omap-des.c linux-libre-4.1.6-gnu/drivers/crypto/omap-des.c
--- linux-libre-4.1-gnu/drivers/crypto/omap-des.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/crypto/omap-des.c	2015-08-16 23:52:51.000000000 -0400
@@ -536,9 +536,6 @@ static int omap_des_crypt_dma_stop(struc
 	dmaengine_terminate_all(dd->dma_lch_in);
 	dmaengine_terminate_all(dd->dma_lch_out);
 
-	dma_unmap_sg(dd->dev, dd->in_sg, dd->in_sg_len, DMA_TO_DEVICE);
-	dma_unmap_sg(dd->dev, dd->out_sg, dd->out_sg_len, DMA_FROM_DEVICE);
-
 	return err;
 }
 
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/crypto/qat/qat_common/qat_algs.c linux-libre-4.1.6-gnu/drivers/crypto/qat/qat_common/qat_algs.c
--- linux-libre-4.1-gnu/drivers/crypto/qat/qat_common/qat_algs.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/crypto/qat/qat_common/qat_algs.c	2015-08-16 23:52:51.000000000 -0400
@@ -73,7 +73,8 @@
 				       ICP_QAT_HW_CIPHER_KEY_CONVERT, \
 				       ICP_QAT_HW_CIPHER_DECRYPT)
 
-static atomic_t active_dev;
+static DEFINE_MUTEX(algs_lock);
+static unsigned int active_devs;
 
 struct qat_alg_buf {
 	uint32_t len;
@@ -1271,7 +1272,10 @@ static struct crypto_alg qat_algs[] = {
 
 int qat_algs_register(void)
 {
-	if (atomic_add_return(1, &active_dev) == 1) {
+	int ret = 0;
+
+	mutex_lock(&algs_lock);
+	if (++active_devs == 1) {
 		int i;
 
 		for (i = 0; i < ARRAY_SIZE(qat_algs); i++)
@@ -1280,21 +1284,25 @@ int qat_algs_register(void)
 				CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_ASYNC :
 				CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC;
 
-		return crypto_register_algs(qat_algs, ARRAY_SIZE(qat_algs));
+		ret = crypto_register_algs(qat_algs, ARRAY_SIZE(qat_algs));
 	}
-	return 0;
+	mutex_unlock(&algs_lock);
+	return ret;
 }
 
 int qat_algs_unregister(void)
 {
-	if (atomic_sub_return(1, &active_dev) == 0)
-		return crypto_unregister_algs(qat_algs, ARRAY_SIZE(qat_algs));
-	return 0;
+	int ret = 0;
+
+	mutex_lock(&algs_lock);
+	if (--active_devs == 0)
+		ret = crypto_unregister_algs(qat_algs, ARRAY_SIZE(qat_algs));
+	mutex_unlock(&algs_lock);
+	return ret;
 }
 
 int qat_algs_init(void)
 {
-	atomic_set(&active_dev, 0);
 	crypto_get_default_rng();
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/crypto/talitos.c linux-libre-4.1.6-gnu/drivers/crypto/talitos.c
--- linux-libre-4.1-gnu/drivers/crypto/talitos.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/crypto/talitos.c	2015-08-16 23:52:51.000000000 -0400
@@ -925,7 +925,8 @@ static int sg_to_link_tbl(struct scatter
 		sg_count--;
 		link_tbl_ptr--;
 	}
-	be16_add_cpu(&link_tbl_ptr->len, cryptlen);
+	link_tbl_ptr->len = cpu_to_be16(be16_to_cpu(link_tbl_ptr->len)
+					+ cryptlen);
 
 	/* tag end of link table */
 	link_tbl_ptr->j_extent = DESC_PTR_LNKTBL_RETURN;
@@ -2561,6 +2562,7 @@ static struct talitos_crypto_alg *talito
 		break;
 	default:
 		dev_err(dev, "unknown algorithm type %d\n", t_alg->algt.type);
+		kfree(t_alg);
 		return ERR_PTR(-EINVAL);
 	}
 
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/dma/at_xdmac.c linux-libre-4.1.6-gnu/drivers/dma/at_xdmac.c
--- linux-libre-4.1-gnu/drivers/dma/at_xdmac.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/dma/at_xdmac.c	2015-08-16 23:52:51.000000000 -0400
@@ -648,16 +648,17 @@ at_xdmac_prep_slave_sg(struct dma_chan *
 			desc->lld.mbr_sa = mem;
 			desc->lld.mbr_da = atchan->sconfig.dst_addr;
 		}
-		desc->lld.mbr_cfg = atchan->cfg;
-		dwidth = at_xdmac_get_dwidth(desc->lld.mbr_cfg);
+		dwidth = at_xdmac_get_dwidth(atchan->cfg);
 		fixed_dwidth = IS_ALIGNED(len, 1 << dwidth)
-			       ? at_xdmac_get_dwidth(desc->lld.mbr_cfg)
+			       ? dwidth
 			       : AT_XDMAC_CC_DWIDTH_BYTE;
 		desc->lld.mbr_ubc = AT_XDMAC_MBR_UBC_NDV2			/* next descriptor view */
 			| AT_XDMAC_MBR_UBC_NDEN					/* next descriptor dst parameter update */
 			| AT_XDMAC_MBR_UBC_NSEN					/* next descriptor src parameter update */
 			| (i == sg_len - 1 ? 0 : AT_XDMAC_MBR_UBC_NDE)		/* descriptor fetch */
 			| (len >> fixed_dwidth);				/* microblock length */
+		desc->lld.mbr_cfg = (atchan->cfg & ~AT_XDMAC_CC_DWIDTH_MASK) |
+				    AT_XDMAC_CC_DWIDTH(fixed_dwidth);
 		dev_dbg(chan2dev(chan),
 			 "%s: lld: mbr_sa=%pad, mbr_da=%pad, mbr_ubc=0x%08x\n",
 			 __func__, &desc->lld.mbr_sa, &desc->lld.mbr_da, desc->lld.mbr_ubc);
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/dma/mv_xor.c linux-libre-4.1.6-gnu/drivers/dma/mv_xor.c
--- linux-libre-4.1-gnu/drivers/dma/mv_xor.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/dma/mv_xor.c	2015-08-16 23:52:51.000000000 -0400
@@ -273,7 +273,8 @@ static void mv_xor_slot_cleanup(struct m
 	dma_cookie_t cookie = 0;
 	int busy = mv_chan_is_busy(mv_chan);
 	u32 current_desc = mv_chan_get_current_desc(mv_chan);
-	int seen_current = 0;
+	int current_cleaned = 0;
+	struct mv_xor_desc *hw_desc;
 
 	dev_dbg(mv_chan_to_devp(mv_chan), "%s %d\n", __func__, __LINE__);
 	dev_dbg(mv_chan_to_devp(mv_chan), "current_desc %x\n", current_desc);
@@ -285,38 +286,57 @@ static void mv_xor_slot_cleanup(struct m
 
 	list_for_each_entry_safe(iter, _iter, &mv_chan->chain,
 					chain_node) {
-		prefetch(_iter);
-		prefetch(&_iter->async_tx);
 
-		/* do not advance past the current descriptor loaded into the
-		 * hardware channel, subsequent descriptors are either in
-		 * process or have not been submitted
-		 */
-		if (seen_current)
-			break;
+		/* clean finished descriptors */
+		hw_desc = iter->hw_desc;
+		if (hw_desc->status & XOR_DESC_SUCCESS) {
+			cookie = mv_xor_run_tx_complete_actions(iter, mv_chan,
+								cookie);
 
-		/* stop the search if we reach the current descriptor and the
-		 * channel is busy
-		 */
-		if (iter->async_tx.phys == current_desc) {
-			seen_current = 1;
-			if (busy)
+			/* done processing desc, clean slot */
+			mv_xor_clean_slot(iter, mv_chan);
+
+			/* break if we did cleaned the current */
+			if (iter->async_tx.phys == current_desc) {
+				current_cleaned = 1;
 				break;
+			}
+		} else {
+			if (iter->async_tx.phys == current_desc) {
+				current_cleaned = 0;
+				break;
+			}
 		}
-
-		cookie = mv_xor_run_tx_complete_actions(iter, mv_chan, cookie);
-
-		if (mv_xor_clean_slot(iter, mv_chan))
-			break;
 	}
 
 	if ((busy == 0) && !list_empty(&mv_chan->chain)) {
-		struct mv_xor_desc_slot *chain_head;
-		chain_head = list_entry(mv_chan->chain.next,
-					struct mv_xor_desc_slot,
-					chain_node);
-
-		mv_xor_start_new_chain(mv_chan, chain_head);
+		if (current_cleaned) {
+			/*
+			 * current descriptor cleaned and removed, run
+			 * from list head
+			 */
+			iter = list_entry(mv_chan->chain.next,
+					  struct mv_xor_desc_slot,
+					  chain_node);
+			mv_xor_start_new_chain(mv_chan, iter);
+		} else {
+			if (!list_is_last(&iter->chain_node, &mv_chan->chain)) {
+				/*
+				 * descriptors are still waiting after
+				 * current, trigger them
+				 */
+				iter = list_entry(iter->chain_node.next,
+						  struct mv_xor_desc_slot,
+						  chain_node);
+				mv_xor_start_new_chain(mv_chan, iter);
+			} else {
+				/*
+				 * some descriptors are still waiting
+				 * to be cleaned
+				 */
+				tasklet_schedule(&mv_chan->irq_tasklet);
+			}
+		}
 	}
 
 	if (cookie > 0)
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/dma/mv_xor.h linux-libre-4.1.6-gnu/drivers/dma/mv_xor.h
--- linux-libre-4.1-gnu/drivers/dma/mv_xor.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/dma/mv_xor.h	2015-08-16 23:52:51.000000000 -0400
@@ -31,6 +31,7 @@
 #define XOR_OPERATION_MODE_XOR		0
 #define XOR_OPERATION_MODE_MEMCPY	2
 #define XOR_DESCRIPTOR_SWAP		BIT(14)
+#define XOR_DESC_SUCCESS		0x40000000
 
 #define XOR_DESC_DMA_OWNED		BIT(31)
 #define XOR_DESC_EOD_INT_EN		BIT(31)
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/dma/pl330.c linux-libre-4.1.6-gnu/drivers/dma/pl330.c
--- linux-libre-4.1-gnu/drivers/dma/pl330.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/dma/pl330.c	2015-08-16 23:52:51.000000000 -0400
@@ -2328,7 +2328,7 @@ static dma_cookie_t pl330_tx_submit(stru
 			desc->txd.callback = last->txd.callback;
 			desc->txd.callback_param = last->txd.callback_param;
 		}
-		last->last = false;
+		desc->last = false;
 
 		dma_cookie_assign(&desc->txd);
 
@@ -2621,6 +2621,7 @@ pl330_prep_dma_memcpy(struct dma_chan *c
 		desc->rqcfg.brst_len = 1;
 
 	desc->rqcfg.brst_len = get_burst_len(desc, len);
+	desc->bytes_requested = len;
 
 	desc->txd.flags = flags;
 
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/edac/octeon_edac-l2c.c linux-libre-4.1.6-gnu/drivers/edac/octeon_edac-l2c.c
--- linux-libre-4.1-gnu/drivers/edac/octeon_edac-l2c.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/edac/octeon_edac-l2c.c	2015-08-16 23:52:51.000000000 -0400
@@ -151,7 +151,7 @@ static int octeon_l2c_probe(struct platf
 	l2c->ctl_name = "octeon_l2c_err";
 
 
-	if (OCTEON_IS_MODEL(OCTEON_FAM_1_PLUS)) {
+	if (OCTEON_IS_OCTEON1PLUS()) {
 		union cvmx_l2t_err l2t_err;
 		union cvmx_l2d_err l2d_err;
 
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/edac/octeon_edac-lmc.c linux-libre-4.1.6-gnu/drivers/edac/octeon_edac-lmc.c
--- linux-libre-4.1-gnu/drivers/edac/octeon_edac-lmc.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/edac/octeon_edac-lmc.c	2015-08-16 23:52:51.000000000 -0400
@@ -234,7 +234,7 @@ static int octeon_lmc_edac_probe(struct
 	layers[0].size = 1;
 	layers[0].is_virt_csrow = false;
 
-	if (OCTEON_IS_MODEL(OCTEON_FAM_1_PLUS)) {
+	if (OCTEON_IS_OCTEON1PLUS()) {
 		union cvmx_lmcx_mem_cfg0 cfg0;
 
 		cfg0.u64 = cvmx_read_csr(CVMX_LMCX_MEM_CFG0(0));
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/edac/octeon_edac-pc.c linux-libre-4.1.6-gnu/drivers/edac/octeon_edac-pc.c
--- linux-libre-4.1-gnu/drivers/edac/octeon_edac-pc.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/edac/octeon_edac-pc.c	2015-08-16 23:52:51.000000000 -0400
@@ -73,7 +73,7 @@ static int  co_cache_error_event(struct
 			edac_device_handle_ce(p->ed, cpu, 0, "dcache");
 
 		/* Clear the error indication */
-		if (OCTEON_IS_MODEL(OCTEON_FAM_2))
+		if (OCTEON_IS_OCTEON2())
 			write_octeon_c0_dcacheerr(1);
 		else
 			write_octeon_c0_dcacheerr(0);
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/firmware/dmi_scan.c linux-libre-4.1.6-gnu/drivers/firmware/dmi_scan.c
--- linux-libre-4.1-gnu/drivers/firmware/dmi_scan.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/firmware/dmi_scan.c	2015-08-16 23:52:51.000000000 -0400
@@ -89,9 +89,9 @@ static void dmi_table(u8 *buf,
 
 	/*
 	 * Stop when we have seen all the items the table claimed to have
-	 * (SMBIOS < 3.0 only) OR we reach an end-of-table marker OR we run
-	 * off the end of the table (should never happen but sometimes does
-	 * on bogus implementations.)
+	 * (SMBIOS < 3.0 only) OR we reach an end-of-table marker (SMBIOS
+	 * >= 3.0 only) OR we run off the end of the table (should never
+	 * happen but sometimes does on bogus implementations.)
 	 */
 	while ((!dmi_num || i < dmi_num) &&
 	       (data - buf + sizeof(struct dmi_header)) <= dmi_len) {
@@ -110,8 +110,13 @@ static void dmi_table(u8 *buf,
 
 		/*
 		 * 7.45 End-of-Table (Type 127) [SMBIOS reference spec v3.0.0]
+		 * For tables behind a 64-bit entry point, we have no item
+		 * count and no exact table length, so stop on end-of-table
+		 * marker. For tables behind a 32-bit entry point, we have
+		 * seen OEM structures behind the end-of-table marker on
+		 * some systems, so don't trust it.
 		 */
-		if (dm->type == DMI_ENTRY_END_OF_TABLE)
+		if (!dmi_num && dm->type == DMI_ENTRY_END_OF_TABLE)
 			break;
 
 		data += 2;
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/firmware/efi/cper.c linux-libre-4.1.6-gnu/drivers/firmware/efi/cper.c
--- linux-libre-4.1-gnu/drivers/firmware/efi/cper.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/firmware/efi/cper.c	2015-08-16 23:52:51.000000000 -0400
@@ -305,10 +305,17 @@ const char *cper_mem_err_unpack(struct t
 	return ret;
 }
 
-static void cper_print_mem(const char *pfx, const struct cper_sec_mem_err *mem)
+static void cper_print_mem(const char *pfx, const struct cper_sec_mem_err *mem,
+	int len)
 {
 	struct cper_mem_err_compact cmem;
 
+	/* Don't trust UEFI 2.1/2.2 structure with bad validation bits */
+	if (len == sizeof(struct cper_sec_mem_err_old) &&
+	    (mem->validation_bits & ~(CPER_MEM_VALID_RANK_NUMBER - 1))) {
+		pr_err(FW_WARN "valid bits set for fields beyond structure\n");
+		return;
+	}
 	if (mem->validation_bits & CPER_MEM_VALID_ERROR_STATUS)
 		printk("%s""error_status: 0x%016llx\n", pfx, mem->error_status);
 	if (mem->validation_bits & CPER_MEM_VALID_PA)
@@ -405,8 +412,10 @@ static void cper_estatus_print_section(
 	} else if (!uuid_le_cmp(*sec_type, CPER_SEC_PLATFORM_MEM)) {
 		struct cper_sec_mem_err *mem_err = (void *)(gdata + 1);
 		printk("%s""section_type: memory error\n", newpfx);
-		if (gdata->error_data_length >= sizeof(*mem_err))
-			cper_print_mem(newpfx, mem_err);
+		if (gdata->error_data_length >=
+		    sizeof(struct cper_sec_mem_err_old))
+			cper_print_mem(newpfx, mem_err,
+				       gdata->error_data_length);
 		else
 			goto err_section_too_small;
 	} else if (!uuid_le_cmp(*sec_type, CPER_SEC_PCIE)) {
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/firmware/efi/efi.c linux-libre-4.1.6-gnu/drivers/firmware/efi/efi.c
--- linux-libre-4.1-gnu/drivers/firmware/efi/efi.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/firmware/efi/efi.c	2015-08-16 23:52:51.000000000 -0400
@@ -57,6 +57,11 @@ bool efi_runtime_disabled(void)
 
 static int __init parse_efi_cmdline(char *str)
 {
+	if (!str) {
+		pr_warn("need at least one option\n");
+		return -EINVAL;
+	}
+
 	if (parse_option_str(str, "noruntime"))
 		disable_runtime = true;
 
@@ -65,7 +70,6 @@ static int __init parse_efi_cmdline(char
 early_param("efi", parse_efi_cmdline);
 
 static struct kobject *efi_kobj;
-static struct kobject *efivars_kobj;
 
 /*
  * Let's not leave out systab information that snuck into
@@ -212,10 +216,9 @@ static int __init efisubsys_init(void)
 		goto err_remove_group;
 
 	/* and the standard mountpoint for efivarfs */
-	efivars_kobj = kobject_create_and_add("efivars", efi_kobj);
-	if (!efivars_kobj) {
+	error = sysfs_create_mount_point(efi_kobj, "efivars");
+	if (error) {
 		pr_err("efivars: Subsystem registration failed.\n");
-		error = -ENOMEM;
 		goto err_remove_group;
 	}
 
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/gpio/gpio-crystalcove.c linux-libre-4.1.6-gnu/drivers/gpio/gpio-crystalcove.c
--- linux-libre-4.1-gnu/drivers/gpio/gpio-crystalcove.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/gpio/gpio-crystalcove.c	2015-08-16 23:52:51.000000000 -0400
@@ -255,6 +255,7 @@ static struct irq_chip crystalcove_irqch
 	.irq_set_type		= crystalcove_irq_type,
 	.irq_bus_lock		= crystalcove_bus_lock,
 	.irq_bus_sync_unlock	= crystalcove_bus_sync_unlock,
+	.flags			= IRQCHIP_SKIP_SET_WAKE,
 };
 
 static irqreturn_t crystalcove_gpio_irq_handler(int irq, void *data)
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/gpio/gpio-rcar.c linux-libre-4.1.6-gnu/drivers/gpio/gpio-rcar.c
--- linux-libre-4.1-gnu/drivers/gpio/gpio-rcar.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/gpio/gpio-rcar.c	2015-08-16 23:52:51.000000000 -0400
@@ -177,8 +177,17 @@ static int gpio_rcar_irq_set_wake(struct
 	struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
 	struct gpio_rcar_priv *p = container_of(gc, struct gpio_rcar_priv,
 						gpio_chip);
+	int error;
 
-	irq_set_irq_wake(p->irq_parent, on);
+	if (p->irq_parent) {
+		error = irq_set_irq_wake(p->irq_parent, on);
+		if (error) {
+			dev_dbg(&p->pdev->dev,
+				"irq %u doesn't support irq_set_wake\n",
+				p->irq_parent);
+			p->irq_parent = 0;
+		}
+	}
 
 	if (!p->clk)
 		return 0;
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/gpu/drm/bridge/ptn3460.c linux-libre-4.1.6-gnu/drivers/gpu/drm/bridge/ptn3460.c
--- linux-libre-4.1-gnu/drivers/gpu/drm/bridge/ptn3460.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/gpu/drm/bridge/ptn3460.c	2015-08-16 23:52:51.000000000 -0400
@@ -15,6 +15,7 @@
 
 #include <linux/delay.h>
 #include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
 #include <linux/i2c.h>
 #include <linux/module.h>
 #include <linux/of.h>
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/gpu/drm/drm_crtc.c linux-libre-4.1.6-gnu/drivers/gpu/drm/drm_crtc.c
--- linux-libre-4.1-gnu/drivers/gpu/drm/drm_crtc.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/gpu/drm/drm_crtc.c	2015-08-16 23:52:51.000000000 -0400
@@ -2749,8 +2749,11 @@ int drm_mode_setcrtc(struct drm_device *
 	if (!drm_core_check_feature(dev, DRIVER_MODESET))
 		return -EINVAL;
 
-	/* For some reason crtc x/y offsets are signed internally. */
-	if (crtc_req->x > INT_MAX || crtc_req->y > INT_MAX)
+	/*
+	 * Universal plane src offsets are only 16.16, prevent havoc for
+	 * drivers using universal plane code internally.
+	 */
+	if (crtc_req->x & 0xffff0000 || crtc_req->y & 0xffff0000)
 		return -ERANGE;
 
 	drm_modeset_lock_all(dev);
@@ -5048,12 +5051,9 @@ void drm_mode_config_reset(struct drm_de
 		if (encoder->funcs->reset)
 			encoder->funcs->reset(encoder);
 
-	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
-		connector->status = connector_status_unknown;
-
+	list_for_each_entry(connector, &dev->mode_config.connector_list, head)
 		if (connector->funcs->reset)
 			connector->funcs->reset(connector);
-	}
 }
 EXPORT_SYMBOL(drm_mode_config_reset);
 
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/gpu/drm/drm_dp_mst_topology.c linux-libre-4.1.6-gnu/drivers/gpu/drm/drm_dp_mst_topology.c
--- linux-libre-4.1-gnu/drivers/gpu/drm/drm_dp_mst_topology.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/gpu/drm/drm_dp_mst_topology.c	2015-08-16 23:52:51.000000000 -0400
@@ -867,8 +867,16 @@ static void drm_dp_destroy_port(struct k
 		port->vcpi.num_slots = 0;
 
 		kfree(port->cached_edid);
-		if (port->connector)
-			(*port->mgr->cbs->destroy_connector)(mgr, port->connector);
+
+		/* we can't destroy the connector here, as
+		   we might be holding the mode_config.mutex
+		   from an EDID retrieval */
+		if (port->connector) {
+			mutex_lock(&mgr->destroy_connector_lock);
+			list_add(&port->connector->destroy_list, &mgr->destroy_connector_list);
+			mutex_unlock(&mgr->destroy_connector_lock);
+			schedule_work(&mgr->destroy_connector_work);
+		}
 		drm_dp_port_teardown_pdt(port, port->pdt);
 
 		if (!port->input && port->vcpi.vcpi > 0)
@@ -1163,6 +1171,8 @@ static struct drm_dp_mst_branch *drm_dp_
 	struct drm_dp_mst_port *port;
 	int i;
 	/* find the port by iterating down */
+
+	mutex_lock(&mgr->lock);
 	mstb = mgr->mst_primary;
 
 	for (i = 0; i < lct - 1; i++) {
@@ -1182,6 +1192,7 @@ static struct drm_dp_mst_branch *drm_dp_
 		}
 	}
 	kref_get(&mstb->kref);
+	mutex_unlock(&mgr->lock);
 	return mstb;
 }
 
@@ -1189,7 +1200,7 @@ static void drm_dp_check_and_send_link_a
 					       struct drm_dp_mst_branch *mstb)
 {
 	struct drm_dp_mst_port *port;
-
+	struct drm_dp_mst_branch *mstb_child;
 	if (!mstb->link_address_sent) {
 		drm_dp_send_link_address(mgr, mstb);
 		mstb->link_address_sent = true;
@@ -1204,17 +1215,31 @@ static void drm_dp_check_and_send_link_a
 		if (!port->available_pbn)
 			drm_dp_send_enum_path_resources(mgr, mstb, port);
 
-		if (port->mstb)
-			drm_dp_check_and_send_link_address(mgr, port->mstb);
+		if (port->mstb) {
+			mstb_child = drm_dp_get_validated_mstb_ref(mgr, port->mstb);
+			if (mstb_child) {
+				drm_dp_check_and_send_link_address(mgr, mstb_child);
+				drm_dp_put_mst_branch_device(mstb_child);
+			}
+		}
 	}
 }
 
 static void drm_dp_mst_link_probe_work(struct work_struct *work)
 {
 	struct drm_dp_mst_topology_mgr *mgr = container_of(work, struct drm_dp_mst_topology_mgr, work);
+	struct drm_dp_mst_branch *mstb;
 
-	drm_dp_check_and_send_link_address(mgr, mgr->mst_primary);
-
+	mutex_lock(&mgr->lock);
+	mstb = mgr->mst_primary;
+	if (mstb) {
+		kref_get(&mstb->kref);
+	}
+	mutex_unlock(&mgr->lock);
+	if (mstb) {
+		drm_dp_check_and_send_link_address(mgr, mstb);
+		drm_dp_put_mst_branch_device(mstb);
+	}
 }
 
 static bool drm_dp_validate_guid(struct drm_dp_mst_topology_mgr *mgr,
@@ -1269,7 +1294,6 @@ retry:
 				goto retry;
 			}
 			DRM_DEBUG_KMS("failed to dpcd write %d %d\n", tosend, ret);
-			WARN(1, "fail\n");
 
 			return -EIO;
 		}
@@ -2632,6 +2656,30 @@ static void drm_dp_tx_work(struct work_s
 	mutex_unlock(&mgr->qlock);
 }
 
+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);
+	struct drm_connector *connector;
+
+	/*
+	 * Not a regular list traverse as we have to drop the destroy
+	 * connector lock before destroying the connector, to avoid AB->BA
+	 * ordering between this lock and the config mutex.
+	 */
+	for (;;) {
+		mutex_lock(&mgr->destroy_connector_lock);
+		connector = list_first_entry_or_null(&mgr->destroy_connector_list, struct drm_connector, destroy_list);
+		if (!connector) {
+			mutex_unlock(&mgr->destroy_connector_lock);
+			break;
+		}
+		list_del(&connector->destroy_list);
+		mutex_unlock(&mgr->destroy_connector_lock);
+
+		mgr->cbs->destroy_connector(mgr, connector);
+	}
+}
+
 /**
  * drm_dp_mst_topology_mgr_init - initialise a topology manager
  * @mgr: manager struct to initialise
@@ -2651,10 +2699,13 @@ int drm_dp_mst_topology_mgr_init(struct
 	mutex_init(&mgr->lock);
 	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);
 	INIT_WORK(&mgr->tx_work, drm_dp_tx_work);
+	INIT_WORK(&mgr->destroy_connector_work, drm_dp_destroy_connector_work);
 	init_waitqueue_head(&mgr->tx_waitq);
 	mgr->dev = dev;
 	mgr->aux = aux;
@@ -2679,6 +2730,7 @@ EXPORT_SYMBOL(drm_dp_mst_topology_mgr_in
  */
 void drm_dp_mst_topology_mgr_destroy(struct drm_dp_mst_topology_mgr *mgr)
 {
+	flush_work(&mgr->destroy_connector_work);
 	mutex_lock(&mgr->payload_lock);
 	kfree(mgr->payloads);
 	mgr->payloads = NULL;
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/gpu/drm/drm_ioc32.c linux-libre-4.1.6-gnu/drivers/gpu/drm/drm_ioc32.c
--- linux-libre-4.1-gnu/drivers/gpu/drm/drm_ioc32.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/gpu/drm/drm_ioc32.c	2015-08-16 23:52:51.000000000 -0400
@@ -70,6 +70,8 @@
 
 #define DRM_IOCTL_WAIT_VBLANK32		DRM_IOWR(0x3a, drm_wait_vblank32_t)
 
+#define DRM_IOCTL_MODE_ADDFB232		DRM_IOWR(0xb8, drm_mode_fb_cmd232_t)
+
 typedef struct drm_version_32 {
 	int version_major;	  /**< Major version */
 	int version_minor;	  /**< Minor version */
@@ -1016,6 +1018,63 @@ static int compat_drm_wait_vblank(struct
 	return 0;
 }
 
+typedef struct drm_mode_fb_cmd232 {
+	u32 fb_id;
+	u32 width;
+	u32 height;
+	u32 pixel_format;
+	u32 flags;
+	u32 handles[4];
+	u32 pitches[4];
+	u32 offsets[4];
+	u64 modifier[4];
+} __attribute__((packed)) drm_mode_fb_cmd232_t;
+
+static int compat_drm_mode_addfb2(struct file *file, unsigned int cmd,
+				  unsigned long arg)
+{
+	struct drm_mode_fb_cmd232 __user *argp = (void __user *)arg;
+	struct drm_mode_fb_cmd232 req32;
+	struct drm_mode_fb_cmd2 __user *req64;
+	int i;
+	int err;
+
+	if (copy_from_user(&req32, argp, sizeof(req32)))
+		return -EFAULT;
+
+	req64 = compat_alloc_user_space(sizeof(*req64));
+
+	if (!access_ok(VERIFY_WRITE, req64, sizeof(*req64))
+	    || __put_user(req32.width, &req64->width)
+	    || __put_user(req32.height, &req64->height)
+	    || __put_user(req32.pixel_format, &req64->pixel_format)
+	    || __put_user(req32.flags, &req64->flags))
+		return -EFAULT;
+
+	for (i = 0; i < 4; i++) {
+		if (__put_user(req32.handles[i], &req64->handles[i]))
+			return -EFAULT;
+		if (__put_user(req32.pitches[i], &req64->pitches[i]))
+			return -EFAULT;
+		if (__put_user(req32.offsets[i], &req64->offsets[i]))
+			return -EFAULT;
+		if (__put_user(req32.modifier[i], &req64->modifier[i]))
+			return -EFAULT;
+	}
+
+	err = drm_ioctl(file, DRM_IOCTL_MODE_ADDFB2, (unsigned long)req64);
+	if (err)
+		return err;
+
+	if (__get_user(req32.fb_id, &req64->fb_id))
+		return -EFAULT;
+
+	if (copy_to_user(argp, &req32, sizeof(req32)))
+		return -EFAULT;
+
+	return 0;
+}
+
 static drm_ioctl_compat_t *drm_compat_ioctls[] = {
 	[DRM_IOCTL_NR(DRM_IOCTL_VERSION32)] = compat_drm_version,
 	[DRM_IOCTL_NR(DRM_IOCTL_GET_UNIQUE32)] = compat_drm_getunique,
@@ -1048,6 +1107,7 @@ 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,
+	[DRM_IOCTL_NR(DRM_IOCTL_MODE_ADDFB232)] = compat_drm_mode_addfb2,
 };
 
 /**
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/gpu/drm/i915/i915_drv.h linux-libre-4.1.6-gnu/drivers/gpu/drm/i915/i915_drv.h
--- linux-libre-4.1-gnu/drivers/gpu/drm/i915/i915_drv.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/gpu/drm/i915/i915_drv.h	2015-08-16 23:52:51.000000000 -0400
@@ -3190,15 +3190,14 @@ int intel_freq_opcode(struct drm_i915_pr
 #define I915_READ64(reg)	dev_priv->uncore.funcs.mmio_readq(dev_priv, (reg), true)
 
 #define I915_READ64_2x32(lower_reg, upper_reg) ({			\
-		u32 upper = I915_READ(upper_reg);			\
-		u32 lower = I915_READ(lower_reg);			\
-		u32 tmp = I915_READ(upper_reg);				\
-		if (upper != tmp) {					\
-			upper = tmp;					\
-			lower = I915_READ(lower_reg);			\
-			WARN_ON(I915_READ(upper_reg) != upper);		\
-		}							\
-		(u64)upper << 32 | lower; })
+	u32 upper, lower, tmp;						\
+	tmp = I915_READ(upper_reg);					\
+	do {								\
+		upper = tmp;						\
+		lower = I915_READ(lower_reg);				\
+		tmp = I915_READ(upper_reg);				\
+	} while (upper != tmp);						\
+	(u64)upper << 32 | lower; })
 
 #define POSTING_READ(reg)	(void)I915_READ_NOTRACE(reg)
 #define POSTING_READ16(reg)	(void)I915_READ16_NOTRACE(reg)
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/gpu/drm/i915/i915_gem.c linux-libre-4.1.6-gnu/drivers/gpu/drm/i915/i915_gem.c
--- linux-libre-4.1-gnu/drivers/gpu/drm/i915/i915_gem.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/gpu/drm/i915/i915_gem.c	2015-08-16 23:52:51.000000000 -0400
@@ -2401,6 +2401,7 @@ int __i915_add_request(struct intel_engi
 	}
 
 	request->emitted_jiffies = jiffies;
+	ring->last_submitted_seqno = request->seqno;
 	list_add_tail(&request->list, &ring->request_list);
 	request->file_priv = NULL;
 
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/gpu/drm/i915/i915_gem_gtt.c linux-libre-4.1.6-gnu/drivers/gpu/drm/i915/i915_gem_gtt.c
--- linux-libre-4.1-gnu/drivers/gpu/drm/i915/i915_gem_gtt.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/gpu/drm/i915/i915_gem_gtt.c	2015-08-16 23:52:51.000000000 -0400
@@ -502,17 +502,17 @@ static void gen8_ppgtt_clear_range(struc
 		struct page *page_table;
 
 		if (WARN_ON(!ppgtt->pdp.page_directory[pdpe]))
-			continue;
+			break;
 
 		pd = ppgtt->pdp.page_directory[pdpe];
 
 		if (WARN_ON(!pd->page_table[pde]))
-			continue;
+			break;
 
 		pt = pd->page_table[pde];
 
 		if (WARN_ON(!pt->page))
-			continue;
+			break;
 
 		page_table = pt->page;
 
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/gpu/drm/i915/i915_gem_tiling.c linux-libre-4.1.6-gnu/drivers/gpu/drm/i915/i915_gem_tiling.c
--- linux-libre-4.1-gnu/drivers/gpu/drm/i915/i915_gem_tiling.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/gpu/drm/i915/i915_gem_tiling.c	2015-08-16 23:52:51.000000000 -0400
@@ -464,7 +464,10 @@ i915_gem_get_tiling(struct drm_device *d
 	}
 
 	/* Hide bit 17 from the user -- see comment in i915_gem_set_tiling */
-	args->phys_swizzle_mode = args->swizzle_mode;
+	if (dev_priv->quirks & QUIRK_PIN_SWIZZLED_PAGES)
+		args->phys_swizzle_mode = I915_BIT_6_SWIZZLE_UNKNOWN;
+	else
+		args->phys_swizzle_mode = args->swizzle_mode;
 	if (args->swizzle_mode == I915_BIT_6_SWIZZLE_9_17)
 		args->swizzle_mode = I915_BIT_6_SWIZZLE_9;
 	if (args->swizzle_mode == I915_BIT_6_SWIZZLE_9_10_17)
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/gpu/drm/i915/i915_ioc32.c linux-libre-4.1.6-gnu/drivers/gpu/drm/i915/i915_ioc32.c
--- linux-libre-4.1-gnu/drivers/gpu/drm/i915/i915_ioc32.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/gpu/drm/i915/i915_ioc32.c	2015-08-16 23:52:51.000000000 -0400
@@ -204,7 +204,7 @@ long i915_compat_ioctl(struct file *filp
 	drm_ioctl_compat_t *fn = NULL;
 	int ret;
 
-	if (nr < DRM_COMMAND_BASE)
+	if (nr < DRM_COMMAND_BASE || nr >= DRM_COMMAND_END)
 		return drm_compat_ioctl(filp, cmd, arg);
 
 	if (nr < DRM_COMMAND_BASE + ARRAY_SIZE(i915_compat_ioctls))
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/gpu/drm/i915/i915_irq.c linux-libre-4.1.6-gnu/drivers/gpu/drm/i915/i915_irq.c
--- linux-libre-4.1-gnu/drivers/gpu/drm/i915/i915_irq.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/gpu/drm/i915/i915_irq.c	2015-08-16 23:52:51.000000000 -0400
@@ -2650,18 +2650,11 @@ static void gen8_disable_vblank(struct d
 	spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags);
 }
 
-static struct drm_i915_gem_request *
-ring_last_request(struct intel_engine_cs *ring)
-{
-	return list_entry(ring->request_list.prev,
-			  struct drm_i915_gem_request, list);
-}
-
 static bool
-ring_idle(struct intel_engine_cs *ring)
+ring_idle(struct intel_engine_cs *ring, u32 seqno)
 {
 	return (list_empty(&ring->request_list) ||
-		i915_gem_request_completed(ring_last_request(ring), false));
+		i915_seqno_passed(seqno, ring->last_submitted_seqno));
 }
 
 static bool
@@ -2883,7 +2876,7 @@ static void i915_hangcheck_elapsed(struc
 		acthd = intel_ring_get_active_head(ring);
 
 		if (ring->hangcheck.seqno == seqno) {
-			if (ring_idle(ring)) {
+			if (ring_idle(ring, seqno)) {
 				ring->hangcheck.action = HANGCHECK_IDLE;
 
 				if (waitqueue_active(&ring->irq_queue)) {
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/gpu/drm/i915/i915_reg.h linux-libre-4.1.6-gnu/drivers/gpu/drm/i915/i915_reg.h
--- linux-libre-4.1-gnu/drivers/gpu/drm/i915/i915_reg.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/gpu/drm/i915/i915_reg.h	2015-08-16 23:52:51.000000000 -0400
@@ -3209,6 +3209,7 @@ enum skl_disp_power_wells {
 #define   BLM_POLARITY_PNV			(1 << 0) /* pnv only */
 
 #define BLC_HIST_CTL	(dev_priv->info.display_mmio_offset + 0x61260)
+#define  BLM_HISTOGRAM_ENABLE			(1 << 31)
 
 /* New registers for PCH-split platforms. Safe where new bits show up, the
  * register layout machtes with gen4 BLC_PWM_CTL[12]. */
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/gpu/drm/i915/intel_display.c linux-libre-4.1.6-gnu/drivers/gpu/drm/i915/intel_display.c
--- linux-libre-4.1-gnu/drivers/gpu/drm/i915/intel_display.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/gpu/drm/i915/intel_display.c	2015-08-16 23:52:51.000000000 -0400
@@ -12499,6 +12499,16 @@ intel_check_primary_plane(struct drm_pla
 				intel_crtc->atomic.wait_vblank = true;
 		}
 
+		/*
+		 * FIXME: Actually if we will still have any other plane enabled
+		 * on the pipe we could let IPS enabled still, but for
+		 * now lets consider that when we make primary invisible
+		 * by setting DSPCNTR to 0 on update_primary_plane function
+		 * IPS needs to be disable.
+		 */
+		if (!state->visible || !fb)
+			intel_crtc->atomic.disable_ips = true;
+
 		intel_crtc->atomic.fb_bits |=
 			INTEL_FRONTBUFFER_PRIMARY(intel_crtc->pipe);
 
@@ -12590,6 +12600,9 @@ static void intel_begin_crtc_commit(stru
 	if (intel_crtc->atomic.disable_fbc)
 		intel_fbc_disable(dev);
 
+	if (intel_crtc->atomic.disable_ips)
+		hsw_disable_ips(intel_crtc);
+
 	if (intel_crtc->atomic.pre_disable_primary)
 		intel_pre_disable_primary(crtc);
 
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/gpu/drm/i915/intel_drv.h linux-libre-4.1.6-gnu/drivers/gpu/drm/i915/intel_drv.h
--- linux-libre-4.1-gnu/drivers/gpu/drm/i915/intel_drv.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/gpu/drm/i915/intel_drv.h	2015-08-16 23:52:51.000000000 -0400
@@ -424,6 +424,7 @@ struct intel_crtc_atomic_commit {
 	/* Sleepable operations to perform before commit */
 	bool wait_for_flips;
 	bool disable_fbc;
+	bool disable_ips;
 	bool pre_disable_primary;
 	bool update_wm;
 	unsigned disabled_planes;
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/gpu/drm/i915/intel_panel.c linux-libre-4.1.6-gnu/drivers/gpu/drm/i915/intel_panel.c
--- linux-libre-4.1-gnu/drivers/gpu/drm/i915/intel_panel.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/gpu/drm/i915/intel_panel.c	2015-08-16 23:52:51.000000000 -0400
@@ -879,6 +879,14 @@ static void i9xx_enable_backlight(struct
 
 	/* XXX: combine this into above write? */
 	intel_panel_actually_set_backlight(connector, panel->backlight.level);
+
+	/*
+	 * Needed to enable backlight on some 855gm models. BLC_HIST_CTL is
+	 * 855gm only, but checking for gen2 is safe, as 855gm is the only gen2
+	 * that has backlight.
+	 */
+	if (IS_GEN2(dev))
+		I915_WRITE(BLC_HIST_CTL, BLM_HISTOGRAM_ENABLE);
 }
 
 static void i965_enable_backlight(struct intel_connector *connector)
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/gpu/drm/i915/intel_ringbuffer.h linux-libre-4.1.6-gnu/drivers/gpu/drm/i915/intel_ringbuffer.h
--- linux-libre-4.1-gnu/drivers/gpu/drm/i915/intel_ringbuffer.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/gpu/drm/i915/intel_ringbuffer.h	2015-08-16 23:52:51.000000000 -0400
@@ -266,6 +266,13 @@ struct  intel_engine_cs {
 	 * Do we have some not yet emitted requests outstanding?
 	 */
 	struct drm_i915_gem_request *outstanding_lazy_request;
+	/**
+	 * Seqno of request most recently submitted to request_list.
+	 * Used exclusively by hang checker to avoid grabbing lock while
+	 * inspecting request list.
+	 */
+	u32 last_submitted_seqno;
+
 	bool gpu_caches_dirty;
 
 	wait_queue_head_t irq_queue;
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/gpu/drm/i915/intel_uncore.c linux-libre-4.1.6-gnu/drivers/gpu/drm/i915/intel_uncore.c
--- linux-libre-4.1-gnu/drivers/gpu/drm/i915/intel_uncore.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/gpu/drm/i915/intel_uncore.c	2015-08-16 23:52:51.000000000 -0400
@@ -1220,10 +1220,12 @@ int i915_reg_read_ioctl(struct drm_devic
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct drm_i915_reg_read *reg = data;
 	struct register_whitelist const *entry = whitelist;
+	unsigned size;
+	u64 offset;
 	int i, ret = 0;
 
 	for (i = 0; i < ARRAY_SIZE(whitelist); i++, entry++) {
-		if (entry->offset == reg->offset &&
+		if (entry->offset == (reg->offset & -entry->size) &&
 		    (1 << INTEL_INFO(dev)->gen & entry->gen_bitmask))
 			break;
 	}
@@ -1231,23 +1233,33 @@ int i915_reg_read_ioctl(struct drm_devic
 	if (i == ARRAY_SIZE(whitelist))
 		return -EINVAL;
 
+	/* We use the low bits to encode extra flags as the register should
+	 * be naturally aligned (and those that are not so aligned merely
+	 * limit the available flags for that register).
+	 */
+	offset = entry->offset;
+	size = entry->size;
+	size |= reg->offset ^ offset;
+
 	intel_runtime_pm_get(dev_priv);
 
-	switch (entry->size) {
+	switch (size) {
+	case 8 | 1:
+		reg->val = I915_READ64_2x32(offset, offset+4);
+		break;
 	case 8:
-		reg->val = I915_READ64(reg->offset);
+		reg->val = I915_READ64(offset);
 		break;
 	case 4:
-		reg->val = I915_READ(reg->offset);
+		reg->val = I915_READ(offset);
 		break;
 	case 2:
-		reg->val = I915_READ16(reg->offset);
+		reg->val = I915_READ16(offset);
 		break;
 	case 1:
-		reg->val = I915_READ8(reg->offset);
+		reg->val = I915_READ8(offset);
 		break;
 	default:
-		MISSING_CASE(entry->size);
 		ret = -EINVAL;
 		goto out;
 	}
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/gpu/drm/nouveau/nouveau_drm.c linux-libre-4.1.6-gnu/drivers/gpu/drm/nouveau/nouveau_drm.c
--- linux-libre-4.1-gnu/drivers/gpu/drm/nouveau/nouveau_drm.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/gpu/drm/nouveau/nouveau_drm.c	2015-08-16 23:52:51.000000000 -0400
@@ -863,8 +863,10 @@ nouveau_drm_preclose(struct drm_device *
 
 	pm_runtime_get_sync(dev->dev);
 
+	mutex_lock(&cli->mutex);
 	if (cli->abi16)
 		nouveau_abi16_fini(cli->abi16);
+	mutex_unlock(&cli->mutex);
 
 	mutex_lock(&drm->client.mutex);
 	list_del(&cli->head);
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/gpu/drm/nouveau/nv04_fbcon.c linux-libre-4.1.6-gnu/drivers/gpu/drm/nouveau/nv04_fbcon.c
--- linux-libre-4.1-gnu/drivers/gpu/drm/nouveau/nv04_fbcon.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/gpu/drm/nouveau/nv04_fbcon.c	2015-08-16 23:52:51.000000000 -0400
@@ -203,7 +203,7 @@ nv04_fbcon_accel_init(struct fb_info *in
 	if (ret)
 		return ret;
 
-	if (RING_SPACE(chan, 49)) {
+	if (RING_SPACE(chan, 49 + (device->info.chipset >= 0x11 ? 4 : 0))) {
 		nouveau_fbcon_gpu_lockup(info);
 		return 0;
 	}
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/gpu/drm/nouveau/nv50_display.c linux-libre-4.1.6-gnu/drivers/gpu/drm/nouveau/nv50_display.c
--- linux-libre-4.1-gnu/drivers/gpu/drm/nouveau/nv50_display.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/gpu/drm/nouveau/nv50_display.c	2015-08-16 23:52:51.000000000 -0400
@@ -979,7 +979,7 @@ nv50_crtc_cursor_show_hide(struct nouvea
 {
 	struct nv50_mast *mast = nv50_mast(nv_crtc->base.dev);
 
-	if (show && nv_crtc->cursor.nvbo)
+	if (show && nv_crtc->cursor.nvbo && nv_crtc->base.enabled)
 		nv50_crtc_cursor_show(nv_crtc);
 	else
 		nv50_crtc_cursor_hide(nv_crtc);
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/instmem/nv04.c linux-libre-4.1.6-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/instmem/nv04.c
--- linux-libre-4.1-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/instmem/nv04.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/instmem/nv04.c	2015-08-16 23:52:51.000000000 -0400
@@ -50,7 +50,12 @@ nv04_instobj_dtor(struct nvkm_object *ob
 {
 	struct nv04_instmem_priv *priv = (void *)nvkm_instmem(object);
 	struct nv04_instobj_priv *node = (void *)object;
+	struct nvkm_subdev *subdev = (void *)priv;
+
+	mutex_lock(&subdev->mutex);
 	nvkm_mm_free(&priv->heap, &node->mem);
+	mutex_unlock(&subdev->mutex);
+
 	nvkm_instobj_destroy(&node->base);
 }
 
@@ -62,6 +67,7 @@ nv04_instobj_ctor(struct nvkm_object *pa
 	struct nv04_instmem_priv *priv = (void *)nvkm_instmem(parent);
 	struct nv04_instobj_priv *node;
 	struct nvkm_instobj_args *args = data;
+	struct nvkm_subdev *subdev = (void *)priv;
 	int ret;
 
 	if (!args->align)
@@ -72,8 +78,10 @@ nv04_instobj_ctor(struct nvkm_object *pa
 	if (ret)
 		return ret;
 
+	mutex_lock(&subdev->mutex);
 	ret = nvkm_mm_head(&priv->heap, 0, 1, args->size, args->size,
 			   args->align, &node->mem);
+	mutex_unlock(&subdev->mutex);
 	if (ret)
 		return ret;
 
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/gpu/drm/qxl/qxl_cmd.c linux-libre-4.1.6-gnu/drivers/gpu/drm/qxl/qxl_cmd.c
--- linux-libre-4.1-gnu/drivers/gpu/drm/qxl/qxl_cmd.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/gpu/drm/qxl/qxl_cmd.c	2015-08-16 23:52:51.000000000 -0400
@@ -505,6 +505,7 @@ int qxl_hw_surface_alloc(struct qxl_devi
 
 	cmd = (struct qxl_surface_cmd *)qxl_release_map(qdev, release);
 	cmd->type = QXL_SURFACE_CMD_CREATE;
+	cmd->flags = QXL_SURF_FLAG_KEEP_DATA;
 	cmd->u.surface_create.format = surf->surf.format;
 	cmd->u.surface_create.width = surf->surf.width;
 	cmd->u.surface_create.height = surf->surf.height;
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/gpu/drm/qxl/qxl_ioctl.c linux-libre-4.1.6-gnu/drivers/gpu/drm/qxl/qxl_ioctl.c
--- linux-libre-4.1-gnu/drivers/gpu/drm/qxl/qxl_ioctl.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/gpu/drm/qxl/qxl_ioctl.c	2015-08-16 23:52:51.000000000 -0400
@@ -122,8 +122,10 @@ static struct qxl_bo *qxlhw_handle_to_bo
 	qobj = gem_to_qxl_bo(gobj);
 
 	ret = qxl_release_list_add(release, qobj);
-	if (ret)
+	if (ret) {
+		drm_gem_object_unreference_unlocked(gobj);
 		return NULL;
+	}
 
 	return qobj;
 }
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/gpu/drm/radeon/ci_dpm.c linux-libre-4.1.6-gnu/drivers/gpu/drm/radeon/ci_dpm.c
--- linux-libre-4.1-gnu/drivers/gpu/drm/radeon/ci_dpm.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/gpu/drm/radeon/ci_dpm.c	2015-08-16 23:52:51.000000000 -0400
@@ -5818,7 +5818,7 @@ int ci_dpm_init(struct radeon_device *rd
 			tmp |= DPM_ENABLED;
 			break;
 		default:
-			DRM_ERROR("Invalid PCC GPIO: %u!\n", gpio.shift);
+			DRM_DEBUG("Invalid PCC GPIO: %u!\n", gpio.shift);
 			break;
 		}
 		WREG32_SMC(CNB_PWRMGT_CNTL, tmp);
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/gpu/drm/radeon/cik.c linux-libre-4.1.6-gnu/drivers/gpu/drm/radeon/cik.c
--- linux-libre-4.1-gnu/drivers/gpu/drm/radeon/cik.c	2015-06-22 01:50:55.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/gpu/drm/radeon/cik.c	2015-08-17 08:21:15.000000000 -0400
@@ -4500,6 +4500,31 @@ void cik_compute_set_wptr(struct radeon_
 	WDOORBELL32(ring->doorbell_index, ring->wptr);
 }
 
+static void cik_compute_stop(struct radeon_device *rdev,
+			     struct radeon_ring *ring)
+{
+	u32 j, tmp;
+
+	cik_srbm_select(rdev, ring->me, ring->pipe, ring->queue, 0);
+	/* Disable wptr polling. */
+	tmp = RREG32(CP_PQ_WPTR_POLL_CNTL);
+	tmp &= ~WPTR_POLL_EN;
+	WREG32(CP_PQ_WPTR_POLL_CNTL, tmp);
+	/* Disable HQD. */
+	if (RREG32(CP_HQD_ACTIVE) & 1) {
+		WREG32(CP_HQD_DEQUEUE_REQUEST, 1);
+		for (j = 0; j < rdev->usec_timeout; j++) {
+			if (!(RREG32(CP_HQD_ACTIVE) & 1))
+				break;
+			udelay(1);
+		}
+		WREG32(CP_HQD_DEQUEUE_REQUEST, 0);
+		WREG32(CP_HQD_PQ_RPTR, 0);
+		WREG32(CP_HQD_PQ_WPTR, 0);
+	}
+	cik_srbm_select(rdev, 0, 0, 0, 0);
+}
+
 /**
  * cik_cp_compute_enable - enable/disable the compute CP MEs
  *
@@ -4513,6 +4538,15 @@ static void cik_cp_compute_enable(struct
 	if (enable)
 		WREG32(CP_MEC_CNTL, 0);
 	else {
+		/*
+		 * To make hibernation reliable we need to clear compute ring
+		 * configuration before halting the compute ring.
+		 */
+		mutex_lock(&rdev->srbm_mutex);
+		cik_compute_stop(rdev,&rdev->ring[CAYMAN_RING_TYPE_CP1_INDEX]);
+		cik_compute_stop(rdev,&rdev->ring[CAYMAN_RING_TYPE_CP2_INDEX]);
+		mutex_unlock(&rdev->srbm_mutex);
+
 		WREG32(CP_MEC_CNTL, (MEC_ME1_HALT | MEC_ME2_HALT));
 		rdev->ring[CAYMAN_RING_TYPE_CP1_INDEX].ready = false;
 		rdev->ring[CAYMAN_RING_TYPE_CP2_INDEX].ready = false;
@@ -7826,23 +7860,27 @@ restart_ih:
 		case 1: /* D1 vblank/vline */
 			switch (src_data) {
 			case 0: /* D1 vblank */
-				if (rdev->irq.stat_regs.cik.disp_int & LB_D1_VBLANK_INTERRUPT) {
-					if (rdev->irq.crtc_vblank_int[0]) {
-						drm_handle_vblank(rdev->ddev, 0);
-						rdev->pm.vblank_sync = true;
-						wake_up(&rdev->irq.vblank_queue);
-					}
-					if (atomic_read(&rdev->irq.pflip[0]))
-						radeon_crtc_handle_vblank(rdev, 0);
-					rdev->irq.stat_regs.cik.disp_int &= ~LB_D1_VBLANK_INTERRUPT;
-					DRM_DEBUG("IH: D1 vblank\n");
+				if (!(rdev->irq.stat_regs.cik.disp_int & LB_D1_VBLANK_INTERRUPT))
+					DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+				if (rdev->irq.crtc_vblank_int[0]) {
+					drm_handle_vblank(rdev->ddev, 0);
+					rdev->pm.vblank_sync = true;
+					wake_up(&rdev->irq.vblank_queue);
 				}
+				if (atomic_read(&rdev->irq.pflip[0]))
+					radeon_crtc_handle_vblank(rdev, 0);
+				rdev->irq.stat_regs.cik.disp_int &= ~LB_D1_VBLANK_INTERRUPT;
+				DRM_DEBUG("IH: D1 vblank\n");
+
 				break;
 			case 1: /* D1 vline */
-				if (rdev->irq.stat_regs.cik.disp_int & LB_D1_VLINE_INTERRUPT) {
-					rdev->irq.stat_regs.cik.disp_int &= ~LB_D1_VLINE_INTERRUPT;
-					DRM_DEBUG("IH: D1 vline\n");
-				}
+				if (!(rdev->irq.stat_regs.cik.disp_int & LB_D1_VLINE_INTERRUPT))
+					DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+				rdev->irq.stat_regs.cik.disp_int &= ~LB_D1_VLINE_INTERRUPT;
+				DRM_DEBUG("IH: D1 vline\n");
+
 				break;
 			default:
 				DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
@@ -7852,23 +7890,27 @@ restart_ih:
 		case 2: /* D2 vblank/vline */
 			switch (src_data) {
 			case 0: /* D2 vblank */
-				if (rdev->irq.stat_regs.cik.disp_int_cont & LB_D2_VBLANK_INTERRUPT) {
-					if (rdev->irq.crtc_vblank_int[1]) {
-						drm_handle_vblank(rdev->ddev, 1);
-						rdev->pm.vblank_sync = true;
-						wake_up(&rdev->irq.vblank_queue);
-					}
-					if (atomic_read(&rdev->irq.pflip[1]))
-						radeon_crtc_handle_vblank(rdev, 1);
-					rdev->irq.stat_regs.cik.disp_int_cont &= ~LB_D2_VBLANK_INTERRUPT;
-					DRM_DEBUG("IH: D2 vblank\n");
+				if (!(rdev->irq.stat_regs.cik.disp_int_cont & LB_D2_VBLANK_INTERRUPT))
+					DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+				if (rdev->irq.crtc_vblank_int[1]) {
+					drm_handle_vblank(rdev->ddev, 1);
+					rdev->pm.vblank_sync = true;
+					wake_up(&rdev->irq.vblank_queue);
 				}
+				if (atomic_read(&rdev->irq.pflip[1]))
+					radeon_crtc_handle_vblank(rdev, 1);
+				rdev->irq.stat_regs.cik.disp_int_cont &= ~LB_D2_VBLANK_INTERRUPT;
+				DRM_DEBUG("IH: D2 vblank\n");
+
 				break;
 			case 1: /* D2 vline */
-				if (rdev->irq.stat_regs.cik.disp_int_cont & LB_D2_VLINE_INTERRUPT) {
-					rdev->irq.stat_regs.cik.disp_int_cont &= ~LB_D2_VLINE_INTERRUPT;
-					DRM_DEBUG("IH: D2 vline\n");
-				}
+				if (!(rdev->irq.stat_regs.cik.disp_int_cont & LB_D2_VLINE_INTERRUPT))
+					DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+				rdev->irq.stat_regs.cik.disp_int_cont &= ~LB_D2_VLINE_INTERRUPT;
+				DRM_DEBUG("IH: D2 vline\n");
+
 				break;
 			default:
 				DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
@@ -7878,23 +7920,27 @@ restart_ih:
 		case 3: /* D3 vblank/vline */
 			switch (src_data) {
 			case 0: /* D3 vblank */
-				if (rdev->irq.stat_regs.cik.disp_int_cont2 & LB_D3_VBLANK_INTERRUPT) {
-					if (rdev->irq.crtc_vblank_int[2]) {
-						drm_handle_vblank(rdev->ddev, 2);
-						rdev->pm.vblank_sync = true;
-						wake_up(&rdev->irq.vblank_queue);
-					}
-					if (atomic_read(&rdev->irq.pflip[2]))
-						radeon_crtc_handle_vblank(rdev, 2);
-					rdev->irq.stat_regs.cik.disp_int_cont2 &= ~LB_D3_VBLANK_INTERRUPT;
-					DRM_DEBUG("IH: D3 vblank\n");
+				if (!(rdev->irq.stat_regs.cik.disp_int_cont2 & LB_D3_VBLANK_INTERRUPT))
+					DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+				if (rdev->irq.crtc_vblank_int[2]) {
+					drm_handle_vblank(rdev->ddev, 2);
+					rdev->pm.vblank_sync = true;
+					wake_up(&rdev->irq.vblank_queue);
 				}
+				if (atomic_read(&rdev->irq.pflip[2]))
+					radeon_crtc_handle_vblank(rdev, 2);
+				rdev->irq.stat_regs.cik.disp_int_cont2 &= ~LB_D3_VBLANK_INTERRUPT;
+				DRM_DEBUG("IH: D3 vblank\n");
+
 				break;
 			case 1: /* D3 vline */
-				if (rdev->irq.stat_regs.cik.disp_int_cont2 & LB_D3_VLINE_INTERRUPT) {
-					rdev->irq.stat_regs.cik.disp_int_cont2 &= ~LB_D3_VLINE_INTERRUPT;
-					DRM_DEBUG("IH: D3 vline\n");
-				}
+				if (!(rdev->irq.stat_regs.cik.disp_int_cont2 & LB_D3_VLINE_INTERRUPT))
+					DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+				rdev->irq.stat_regs.cik.disp_int_cont2 &= ~LB_D3_VLINE_INTERRUPT;
+				DRM_DEBUG("IH: D3 vline\n");
+
 				break;
 			default:
 				DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
@@ -7904,23 +7950,27 @@ restart_ih:
 		case 4: /* D4 vblank/vline */
 			switch (src_data) {
 			case 0: /* D4 vblank */
-				if (rdev->irq.stat_regs.cik.disp_int_cont3 & LB_D4_VBLANK_INTERRUPT) {
-					if (rdev->irq.crtc_vblank_int[3]) {
-						drm_handle_vblank(rdev->ddev, 3);
-						rdev->pm.vblank_sync = true;
-						wake_up(&rdev->irq.vblank_queue);
-					}
-					if (atomic_read(&rdev->irq.pflip[3]))
-						radeon_crtc_handle_vblank(rdev, 3);
-					rdev->irq.stat_regs.cik.disp_int_cont3 &= ~LB_D4_VBLANK_INTERRUPT;
-					DRM_DEBUG("IH: D4 vblank\n");
+				if (!(rdev->irq.stat_regs.cik.disp_int_cont3 & LB_D4_VBLANK_INTERRUPT))
+					DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+				if (rdev->irq.crtc_vblank_int[3]) {
+					drm_handle_vblank(rdev->ddev, 3);
+					rdev->pm.vblank_sync = true;
+					wake_up(&rdev->irq.vblank_queue);
 				}
+				if (atomic_read(&rdev->irq.pflip[3]))
+					radeon_crtc_handle_vblank(rdev, 3);
+				rdev->irq.stat_regs.cik.disp_int_cont3 &= ~LB_D4_VBLANK_INTERRUPT;
+				DRM_DEBUG("IH: D4 vblank\n");
+
 				break;
 			case 1: /* D4 vline */
-				if (rdev->irq.stat_regs.cik.disp_int_cont3 & LB_D4_VLINE_INTERRUPT) {
-					rdev->irq.stat_regs.cik.disp_int_cont3 &= ~LB_D4_VLINE_INTERRUPT;
-					DRM_DEBUG("IH: D4 vline\n");
-				}
+				if (!(rdev->irq.stat_regs.cik.disp_int_cont3 & LB_D4_VLINE_INTERRUPT))
+					DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+				rdev->irq.stat_regs.cik.disp_int_cont3 &= ~LB_D4_VLINE_INTERRUPT;
+				DRM_DEBUG("IH: D4 vline\n");
+
 				break;
 			default:
 				DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
@@ -7930,23 +7980,27 @@ restart_ih:
 		case 5: /* D5 vblank/vline */
 			switch (src_data) {
 			case 0: /* D5 vblank */
-				if (rdev->irq.stat_regs.cik.disp_int_cont4 & LB_D5_VBLANK_INTERRUPT) {
-					if (rdev->irq.crtc_vblank_int[4]) {
-						drm_handle_vblank(rdev->ddev, 4);
-						rdev->pm.vblank_sync = true;
-						wake_up(&rdev->irq.vblank_queue);
-					}
-					if (atomic_read(&rdev->irq.pflip[4]))
-						radeon_crtc_handle_vblank(rdev, 4);
-					rdev->irq.stat_regs.cik.disp_int_cont4 &= ~LB_D5_VBLANK_INTERRUPT;
-					DRM_DEBUG("IH: D5 vblank\n");
+				if (!(rdev->irq.stat_regs.cik.disp_int_cont4 & LB_D5_VBLANK_INTERRUPT))
+					DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+				if (rdev->irq.crtc_vblank_int[4]) {
+					drm_handle_vblank(rdev->ddev, 4);
+					rdev->pm.vblank_sync = true;
+					wake_up(&rdev->irq.vblank_queue);
 				}
+				if (atomic_read(&rdev->irq.pflip[4]))
+					radeon_crtc_handle_vblank(rdev, 4);
+				rdev->irq.stat_regs.cik.disp_int_cont4 &= ~LB_D5_VBLANK_INTERRUPT;
+				DRM_DEBUG("IH: D5 vblank\n");
+
 				break;
 			case 1: /* D5 vline */
-				if (rdev->irq.stat_regs.cik.disp_int_cont4 & LB_D5_VLINE_INTERRUPT) {
-					rdev->irq.stat_regs.cik.disp_int_cont4 &= ~LB_D5_VLINE_INTERRUPT;
-					DRM_DEBUG("IH: D5 vline\n");
-				}
+				if (!(rdev->irq.stat_regs.cik.disp_int_cont4 & LB_D5_VLINE_INTERRUPT))
+					DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+				rdev->irq.stat_regs.cik.disp_int_cont4 &= ~LB_D5_VLINE_INTERRUPT;
+				DRM_DEBUG("IH: D5 vline\n");
+
 				break;
 			default:
 				DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
@@ -7956,23 +8010,27 @@ restart_ih:
 		case 6: /* D6 vblank/vline */
 			switch (src_data) {
 			case 0: /* D6 vblank */
-				if (rdev->irq.stat_regs.cik.disp_int_cont5 & LB_D6_VBLANK_INTERRUPT) {
-					if (rdev->irq.crtc_vblank_int[5]) {
-						drm_handle_vblank(rdev->ddev, 5);
-						rdev->pm.vblank_sync = true;
-						wake_up(&rdev->irq.vblank_queue);
-					}
-					if (atomic_read(&rdev->irq.pflip[5]))
-						radeon_crtc_handle_vblank(rdev, 5);
-					rdev->irq.stat_regs.cik.disp_int_cont5 &= ~LB_D6_VBLANK_INTERRUPT;
-					DRM_DEBUG("IH: D6 vblank\n");
+				if (!(rdev->irq.stat_regs.cik.disp_int_cont5 & LB_D6_VBLANK_INTERRUPT))
+					DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+				if (rdev->irq.crtc_vblank_int[5]) {
+					drm_handle_vblank(rdev->ddev, 5);
+					rdev->pm.vblank_sync = true;
+					wake_up(&rdev->irq.vblank_queue);
 				}
+				if (atomic_read(&rdev->irq.pflip[5]))
+					radeon_crtc_handle_vblank(rdev, 5);
+				rdev->irq.stat_regs.cik.disp_int_cont5 &= ~LB_D6_VBLANK_INTERRUPT;
+				DRM_DEBUG("IH: D6 vblank\n");
+
 				break;
 			case 1: /* D6 vline */
-				if (rdev->irq.stat_regs.cik.disp_int_cont5 & LB_D6_VLINE_INTERRUPT) {
-					rdev->irq.stat_regs.cik.disp_int_cont5 &= ~LB_D6_VLINE_INTERRUPT;
-					DRM_DEBUG("IH: D6 vline\n");
-				}
+				if (!(rdev->irq.stat_regs.cik.disp_int_cont5 & LB_D6_VLINE_INTERRUPT))
+					DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+				rdev->irq.stat_regs.cik.disp_int_cont5 &= ~LB_D6_VLINE_INTERRUPT;
+				DRM_DEBUG("IH: D6 vline\n");
+
 				break;
 			default:
 				DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
@@ -7992,88 +8050,112 @@ restart_ih:
 		case 42: /* HPD hotplug */
 			switch (src_data) {
 			case 0:
-				if (rdev->irq.stat_regs.cik.disp_int & DC_HPD1_INTERRUPT) {
-					rdev->irq.stat_regs.cik.disp_int &= ~DC_HPD1_INTERRUPT;
-					queue_hotplug = true;
-					DRM_DEBUG("IH: HPD1\n");
-				}
+				if (!(rdev->irq.stat_regs.cik.disp_int & DC_HPD1_INTERRUPT))
+					DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+				rdev->irq.stat_regs.cik.disp_int &= ~DC_HPD1_INTERRUPT;
+				queue_hotplug = true;
+				DRM_DEBUG("IH: HPD1\n");
+
 				break;
 			case 1:
-				if (rdev->irq.stat_regs.cik.disp_int_cont & DC_HPD2_INTERRUPT) {
-					rdev->irq.stat_regs.cik.disp_int_cont &= ~DC_HPD2_INTERRUPT;
-					queue_hotplug = true;
-					DRM_DEBUG("IH: HPD2\n");
-				}
+				if (!(rdev->irq.stat_regs.cik.disp_int_cont & DC_HPD2_INTERRUPT))
+					DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+				rdev->irq.stat_regs.cik.disp_int_cont &= ~DC_HPD2_INTERRUPT;
+				queue_hotplug = true;
+				DRM_DEBUG("IH: HPD2\n");
+
 				break;
 			case 2:
-				if (rdev->irq.stat_regs.cik.disp_int_cont2 & DC_HPD3_INTERRUPT) {
-					rdev->irq.stat_regs.cik.disp_int_cont2 &= ~DC_HPD3_INTERRUPT;
-					queue_hotplug = true;
-					DRM_DEBUG("IH: HPD3\n");
-				}
+				if (!(rdev->irq.stat_regs.cik.disp_int_cont2 & DC_HPD3_INTERRUPT))
+					DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+				rdev->irq.stat_regs.cik.disp_int_cont2 &= ~DC_HPD3_INTERRUPT;
+				queue_hotplug = true;
+				DRM_DEBUG("IH: HPD3\n");
+
 				break;
 			case 3:
-				if (rdev->irq.stat_regs.cik.disp_int_cont3 & DC_HPD4_INTERRUPT) {
-					rdev->irq.stat_regs.cik.disp_int_cont3 &= ~DC_HPD4_INTERRUPT;
-					queue_hotplug = true;
-					DRM_DEBUG("IH: HPD4\n");
-				}
+				if (!(rdev->irq.stat_regs.cik.disp_int_cont3 & DC_HPD4_INTERRUPT))
+					DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+				rdev->irq.stat_regs.cik.disp_int_cont3 &= ~DC_HPD4_INTERRUPT;
+				queue_hotplug = true;
+				DRM_DEBUG("IH: HPD4\n");
+
 				break;
 			case 4:
-				if (rdev->irq.stat_regs.cik.disp_int_cont4 & DC_HPD5_INTERRUPT) {
-					rdev->irq.stat_regs.cik.disp_int_cont4 &= ~DC_HPD5_INTERRUPT;
-					queue_hotplug = true;
-					DRM_DEBUG("IH: HPD5\n");
-				}
+				if (!(rdev->irq.stat_regs.cik.disp_int_cont4 & DC_HPD5_INTERRUPT))
+					DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+				rdev->irq.stat_regs.cik.disp_int_cont4 &= ~DC_HPD5_INTERRUPT;
+				queue_hotplug = true;
+				DRM_DEBUG("IH: HPD5\n");
+
 				break;
 			case 5:
-				if (rdev->irq.stat_regs.cik.disp_int_cont5 & DC_HPD6_INTERRUPT) {
-					rdev->irq.stat_regs.cik.disp_int_cont5 &= ~DC_HPD6_INTERRUPT;
-					queue_hotplug = true;
-					DRM_DEBUG("IH: HPD6\n");
-				}
+				if (!(rdev->irq.stat_regs.cik.disp_int_cont5 & DC_HPD6_INTERRUPT))
+					DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+				rdev->irq.stat_regs.cik.disp_int_cont5 &= ~DC_HPD6_INTERRUPT;
+				queue_hotplug = true;
+				DRM_DEBUG("IH: HPD6\n");
+
 				break;
 			case 6:
-				if (rdev->irq.stat_regs.cik.disp_int & DC_HPD1_RX_INTERRUPT) {
-					rdev->irq.stat_regs.cik.disp_int &= ~DC_HPD1_RX_INTERRUPT;
-					queue_dp = true;
-					DRM_DEBUG("IH: HPD_RX 1\n");
-				}
+				if (!(rdev->irq.stat_regs.cik.disp_int & DC_HPD1_RX_INTERRUPT))
+					DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+				rdev->irq.stat_regs.cik.disp_int &= ~DC_HPD1_RX_INTERRUPT;
+				queue_dp = true;
+				DRM_DEBUG("IH: HPD_RX 1\n");
+
 				break;
 			case 7:
-				if (rdev->irq.stat_regs.cik.disp_int_cont & DC_HPD2_RX_INTERRUPT) {
-					rdev->irq.stat_regs.cik.disp_int_cont &= ~DC_HPD2_RX_INTERRUPT;
-					queue_dp = true;
-					DRM_DEBUG("IH: HPD_RX 2\n");
-				}
+				if (!(rdev->irq.stat_regs.cik.disp_int_cont & DC_HPD2_RX_INTERRUPT))
+					DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+				rdev->irq.stat_regs.cik.disp_int_cont &= ~DC_HPD2_RX_INTERRUPT;
+				queue_dp = true;
+				DRM_DEBUG("IH: HPD_RX 2\n");
+
 				break;
 			case 8:
-				if (rdev->irq.stat_regs.cik.disp_int_cont2 & DC_HPD3_RX_INTERRUPT) {
-					rdev->irq.stat_regs.cik.disp_int_cont2 &= ~DC_HPD3_RX_INTERRUPT;
-					queue_dp = true;
-					DRM_DEBUG("IH: HPD_RX 3\n");
-				}
+				if (!(rdev->irq.stat_regs.cik.disp_int_cont2 & DC_HPD3_RX_INTERRUPT))
+					DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+				rdev->irq.stat_regs.cik.disp_int_cont2 &= ~DC_HPD3_RX_INTERRUPT;
+				queue_dp = true;
+				DRM_DEBUG("IH: HPD_RX 3\n");
+
 				break;
 			case 9:
-				if (rdev->irq.stat_regs.cik.disp_int_cont3 & DC_HPD4_RX_INTERRUPT) {
-					rdev->irq.stat_regs.cik.disp_int_cont3 &= ~DC_HPD4_RX_INTERRUPT;
-					queue_dp = true;
-					DRM_DEBUG("IH: HPD_RX 4\n");
-				}
+				if (!(rdev->irq.stat_regs.cik.disp_int_cont3 & DC_HPD4_RX_INTERRUPT))
+					DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+				rdev->irq.stat_regs.cik.disp_int_cont3 &= ~DC_HPD4_RX_INTERRUPT;
+				queue_dp = true;
+				DRM_DEBUG("IH: HPD_RX 4\n");
+
 				break;
 			case 10:
-				if (rdev->irq.stat_regs.cik.disp_int_cont4 & DC_HPD5_RX_INTERRUPT) {
-					rdev->irq.stat_regs.cik.disp_int_cont4 &= ~DC_HPD5_RX_INTERRUPT;
-					queue_dp = true;
-					DRM_DEBUG("IH: HPD_RX 5\n");
-				}
+				if (!(rdev->irq.stat_regs.cik.disp_int_cont4 & DC_HPD5_RX_INTERRUPT))
+					DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+				rdev->irq.stat_regs.cik.disp_int_cont4 &= ~DC_HPD5_RX_INTERRUPT;
+				queue_dp = true;
+				DRM_DEBUG("IH: HPD_RX 5\n");
+
 				break;
 			case 11:
-				if (rdev->irq.stat_regs.cik.disp_int_cont5 & DC_HPD6_RX_INTERRUPT) {
-					rdev->irq.stat_regs.cik.disp_int_cont5 &= ~DC_HPD6_RX_INTERRUPT;
-					queue_dp = true;
-					DRM_DEBUG("IH: HPD_RX 6\n");
-				}
+				if (!(rdev->irq.stat_regs.cik.disp_int_cont5 & DC_HPD6_RX_INTERRUPT))
+					DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+				rdev->irq.stat_regs.cik.disp_int_cont5 &= ~DC_HPD6_RX_INTERRUPT;
+				queue_dp = true;
+				DRM_DEBUG("IH: HPD_RX 6\n");
+
 				break;
 			default:
 				DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/gpu/drm/radeon/cik_sdma.c linux-libre-4.1.6-gnu/drivers/gpu/drm/radeon/cik_sdma.c
--- linux-libre-4.1-gnu/drivers/gpu/drm/radeon/cik_sdma.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/gpu/drm/radeon/cik_sdma.c	2015-08-16 23:52:51.000000000 -0400
@@ -268,6 +268,17 @@ static void cik_sdma_gfx_stop(struct rad
 	}
 	rdev->ring[R600_RING_TYPE_DMA_INDEX].ready = false;
 	rdev->ring[CAYMAN_RING_TYPE_DMA1_INDEX].ready = false;
+
+	/* FIXME use something else than big hammer but after few days can not
+	 * seem to find good combination so reset SDMA blocks as it seems we
+	 * do not shut them down properly. This fix hibernation and does not
+	 * affect suspend to ram.
+	 */
+	WREG32(SRBM_SOFT_RESET, SOFT_RESET_SDMA | SOFT_RESET_SDMA1);
+	(void)RREG32(SRBM_SOFT_RESET);
+	udelay(50);
+	WREG32(SRBM_SOFT_RESET, 0);
+	(void)RREG32(SRBM_SOFT_RESET);
 }
 
 /**
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/gpu/drm/radeon/dce6_afmt.c linux-libre-4.1.6-gnu/drivers/gpu/drm/radeon/dce6_afmt.c
--- linux-libre-4.1-gnu/drivers/gpu/drm/radeon/dce6_afmt.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/gpu/drm/radeon/dce6_afmt.c	2015-08-16 23:52:51.000000000 -0400
@@ -93,30 +93,26 @@ void dce6_afmt_select_pin(struct drm_enc
 	struct radeon_device *rdev = encoder->dev->dev_private;
 	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 	struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
-	u32 offset;
 
-	if (!dig || !dig->afmt || !dig->afmt->pin)
+	if (!dig || !dig->afmt || !dig->pin)
 		return;
 
-	offset = dig->afmt->offset;
-
-	WREG32(AFMT_AUDIO_SRC_CONTROL + offset,
-	       AFMT_AUDIO_SRC_SELECT(dig->afmt->pin->id));
+	WREG32(AFMT_AUDIO_SRC_CONTROL +  dig->afmt->offset,
+	       AFMT_AUDIO_SRC_SELECT(dig->pin->id));
 }
 
 void dce6_afmt_write_latency_fields(struct drm_encoder *encoder,
-		struct drm_connector *connector, struct drm_display_mode *mode)
+				    struct drm_connector *connector,
+				    struct drm_display_mode *mode)
 {
 	struct radeon_device *rdev = encoder->dev->dev_private;
 	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 	struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
-	u32 tmp = 0, offset;
+	u32 tmp = 0;
 
-	if (!dig || !dig->afmt || !dig->afmt->pin)
+	if (!dig || !dig->afmt || !dig->pin)
 		return;
 
-	offset = dig->afmt->pin->offset;
-
 	if (mode->flags & DRM_MODE_FLAG_INTERLACE) {
 		if (connector->latency_present[1])
 			tmp = VIDEO_LIPSYNC(connector->video_latency[1]) |
@@ -130,24 +126,24 @@ void dce6_afmt_write_latency_fields(stru
 		else
 			tmp = VIDEO_LIPSYNC(0) | AUDIO_LIPSYNC(0);
 	}
-	WREG32_ENDPOINT(offset, AZ_F0_CODEC_PIN_CONTROL_RESPONSE_LIPSYNC, tmp);
+	WREG32_ENDPOINT(dig->pin->offset,
+			AZ_F0_CODEC_PIN_CONTROL_RESPONSE_LIPSYNC, tmp);
 }
 
 void dce6_afmt_hdmi_write_speaker_allocation(struct drm_encoder *encoder,
-	u8 *sadb, int sad_count)
+					     u8 *sadb, int sad_count)
 {
 	struct radeon_device *rdev = encoder->dev->dev_private;
 	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 	struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
-	u32 offset, tmp;
+	u32 tmp;
 
-	if (!dig || !dig->afmt || !dig->afmt->pin)
+	if (!dig || !dig->afmt || !dig->pin)
 		return;
 
-	offset = dig->afmt->pin->offset;
-
 	/* program the speaker allocation */
-	tmp = RREG32_ENDPOINT(offset, AZ_F0_CODEC_PIN_CONTROL_CHANNEL_SPEAKER);
+	tmp = RREG32_ENDPOINT(dig->pin->offset,
+			      AZ_F0_CODEC_PIN_CONTROL_CHANNEL_SPEAKER);
 	tmp &= ~(DP_CONNECTION | SPEAKER_ALLOCATION_MASK);
 	/* set HDMI mode */
 	tmp |= HDMI_CONNECTION;
@@ -155,24 +151,24 @@ void dce6_afmt_hdmi_write_speaker_alloca
 		tmp |= SPEAKER_ALLOCATION(sadb[0]);
 	else
 		tmp |= SPEAKER_ALLOCATION(5); /* stereo */
-	WREG32_ENDPOINT(offset, AZ_F0_CODEC_PIN_CONTROL_CHANNEL_SPEAKER, tmp);
+	WREG32_ENDPOINT(dig->pin->offset,
+			AZ_F0_CODEC_PIN_CONTROL_CHANNEL_SPEAKER, tmp);
 }
 
 void dce6_afmt_dp_write_speaker_allocation(struct drm_encoder *encoder,
-	u8 *sadb, int sad_count)
+					   u8 *sadb, int sad_count)
 {
 	struct radeon_device *rdev = encoder->dev->dev_private;
 	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 	struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
-	u32 offset, tmp;
+	u32 tmp;
 
-	if (!dig || !dig->afmt || !dig->afmt->pin)
+	if (!dig || !dig->afmt || !dig->pin)
 		return;
 
-	offset = dig->afmt->pin->offset;
-
 	/* program the speaker allocation */
-	tmp = RREG32_ENDPOINT(offset, AZ_F0_CODEC_PIN_CONTROL_CHANNEL_SPEAKER);
+	tmp = RREG32_ENDPOINT(dig->pin->offset,
+			      AZ_F0_CODEC_PIN_CONTROL_CHANNEL_SPEAKER);
 	tmp &= ~(HDMI_CONNECTION | SPEAKER_ALLOCATION_MASK);
 	/* set DP mode */
 	tmp |= DP_CONNECTION;
@@ -180,13 +176,13 @@ void dce6_afmt_dp_write_speaker_allocati
 		tmp |= SPEAKER_ALLOCATION(sadb[0]);
 	else
 		tmp |= SPEAKER_ALLOCATION(5); /* stereo */
-	WREG32_ENDPOINT(offset, AZ_F0_CODEC_PIN_CONTROL_CHANNEL_SPEAKER, tmp);
+	WREG32_ENDPOINT(dig->pin->offset,
+			AZ_F0_CODEC_PIN_CONTROL_CHANNEL_SPEAKER, tmp);
 }
 
 void dce6_afmt_write_sad_regs(struct drm_encoder *encoder,
-	struct cea_sad *sads, int sad_count)
+			      struct cea_sad *sads, int sad_count)
 {
-	u32 offset;
 	int i;
 	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 	struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
@@ -206,11 +202,9 @@ void dce6_afmt_write_sad_regs(struct drm
 		{ AZ_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR13, HDMI_AUDIO_CODING_TYPE_WMA_PRO },
 	};
 
-	if (!dig || !dig->afmt || !dig->afmt->pin)
+	if (!dig || !dig->afmt || !dig->pin)
 		return;
 
-	offset = dig->afmt->pin->offset;
-
 	for (i = 0; i < ARRAY_SIZE(eld_reg_to_type); i++) {
 		u32 value = 0;
 		u8 stereo_freqs = 0;
@@ -237,7 +231,7 @@ void dce6_afmt_write_sad_regs(struct drm
 
 		value |= SUPPORTED_FREQUENCIES_STEREO(stereo_freqs);
 
-		WREG32_ENDPOINT(offset, eld_reg_to_type[i][0], value);
+		WREG32_ENDPOINT(dig->pin->offset, eld_reg_to_type[i][0], value);
 	}
 }
 
@@ -253,7 +247,7 @@ void dce6_audio_enable(struct radeon_dev
 }
 
 void dce6_hdmi_audio_set_dto(struct radeon_device *rdev,
-	struct radeon_crtc *crtc, unsigned int clock)
+			     struct radeon_crtc *crtc, unsigned int clock)
 {
 	/* Two dtos; generally use dto0 for HDMI */
 	u32 value = 0;
@@ -272,7 +266,7 @@ void dce6_hdmi_audio_set_dto(struct rade
 }
 
 void dce6_dp_audio_set_dto(struct radeon_device *rdev,
-	struct radeon_crtc *crtc, unsigned int clock)
+			   struct radeon_crtc *crtc, unsigned int clock)
 {
 	/* Two dtos; generally use dto1 for DP */
 	u32 value = 0;
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/gpu/drm/radeon/evergreen.c linux-libre-4.1.6-gnu/drivers/gpu/drm/radeon/evergreen.c
--- linux-libre-4.1-gnu/drivers/gpu/drm/radeon/evergreen.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/gpu/drm/radeon/evergreen.c	2015-08-16 23:52:51.000000000 -0400
@@ -4855,7 +4855,7 @@ restart_ih:
 		return IRQ_NONE;
 
 	rptr = rdev->ih.rptr;
-	DRM_DEBUG("r600_irq_process start: rptr %d, wptr %d\n", rptr, wptr);
+	DRM_DEBUG("evergreen_irq_process start: rptr %d, wptr %d\n", rptr, wptr);
 
 	/* Order reading of wptr vs. reading of IH ring data */
 	rmb();
@@ -4873,23 +4873,27 @@ restart_ih:
 		case 1: /* D1 vblank/vline */
 			switch (src_data) {
 			case 0: /* D1 vblank */
-				if (rdev->irq.stat_regs.evergreen.disp_int & LB_D1_VBLANK_INTERRUPT) {
-					if (rdev->irq.crtc_vblank_int[0]) {
-						drm_handle_vblank(rdev->ddev, 0);
-						rdev->pm.vblank_sync = true;
-						wake_up(&rdev->irq.vblank_queue);
-					}
-					if (atomic_read(&rdev->irq.pflip[0]))
-						radeon_crtc_handle_vblank(rdev, 0);
-					rdev->irq.stat_regs.evergreen.disp_int &= ~LB_D1_VBLANK_INTERRUPT;
-					DRM_DEBUG("IH: D1 vblank\n");
+				if (!(rdev->irq.stat_regs.evergreen.disp_int & LB_D1_VBLANK_INTERRUPT))
+					DRM_DEBUG("IH: D1 vblank - IH event w/o asserted irq bit?\n");
+
+				if (rdev->irq.crtc_vblank_int[0]) {
+					drm_handle_vblank(rdev->ddev, 0);
+					rdev->pm.vblank_sync = true;
+					wake_up(&rdev->irq.vblank_queue);
 				}
+				if (atomic_read(&rdev->irq.pflip[0]))
+					radeon_crtc_handle_vblank(rdev, 0);
+				rdev->irq.stat_regs.evergreen.disp_int &= ~LB_D1_VBLANK_INTERRUPT;
+				DRM_DEBUG("IH: D1 vblank\n");
+
 				break;
 			case 1: /* D1 vline */
-				if (rdev->irq.stat_regs.evergreen.disp_int & LB_D1_VLINE_INTERRUPT) {
-					rdev->irq.stat_regs.evergreen.disp_int &= ~LB_D1_VLINE_INTERRUPT;
-					DRM_DEBUG("IH: D1 vline\n");
-				}
+				if (!(rdev->irq.stat_regs.evergreen.disp_int & LB_D1_VLINE_INTERRUPT))
+					DRM_DEBUG("IH: D1 vline - IH event w/o asserted irq bit?\n");
+
+				rdev->irq.stat_regs.evergreen.disp_int &= ~LB_D1_VLINE_INTERRUPT;
+				DRM_DEBUG("IH: D1 vline\n");
+
 				break;
 			default:
 				DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
@@ -4899,23 +4903,27 @@ restart_ih:
 		case 2: /* D2 vblank/vline */
 			switch (src_data) {
 			case 0: /* D2 vblank */
-				if (rdev->irq.stat_regs.evergreen.disp_int_cont & LB_D2_VBLANK_INTERRUPT) {
-					if (rdev->irq.crtc_vblank_int[1]) {
-						drm_handle_vblank(rdev->ddev, 1);
-						rdev->pm.vblank_sync = true;
-						wake_up(&rdev->irq.vblank_queue);
-					}
-					if (atomic_read(&rdev->irq.pflip[1]))
-						radeon_crtc_handle_vblank(rdev, 1);
-					rdev->irq.stat_regs.evergreen.disp_int_cont &= ~LB_D2_VBLANK_INTERRUPT;
-					DRM_DEBUG("IH: D2 vblank\n");
+				if (!(rdev->irq.stat_regs.evergreen.disp_int_cont & LB_D2_VBLANK_INTERRUPT))
+					DRM_DEBUG("IH: D2 vblank - IH event w/o asserted irq bit?\n");
+
+				if (rdev->irq.crtc_vblank_int[1]) {
+					drm_handle_vblank(rdev->ddev, 1);
+					rdev->pm.vblank_sync = true;
+					wake_up(&rdev->irq.vblank_queue);
 				}
+				if (atomic_read(&rdev->irq.pflip[1]))
+					radeon_crtc_handle_vblank(rdev, 1);
+				rdev->irq.stat_regs.evergreen.disp_int_cont &= ~LB_D2_VBLANK_INTERRUPT;
+				DRM_DEBUG("IH: D2 vblank\n");
+
 				break;
 			case 1: /* D2 vline */
-				if (rdev->irq.stat_regs.evergreen.disp_int_cont & LB_D2_VLINE_INTERRUPT) {
-					rdev->irq.stat_regs.evergreen.disp_int_cont &= ~LB_D2_VLINE_INTERRUPT;
-					DRM_DEBUG("IH: D2 vline\n");
-				}
+				if (!(rdev->irq.stat_regs.evergreen.disp_int_cont & LB_D2_VLINE_INTERRUPT))
+					DRM_DEBUG("IH: D2 vline - IH event w/o asserted irq bit?\n");
+
+				rdev->irq.stat_regs.evergreen.disp_int_cont &= ~LB_D2_VLINE_INTERRUPT;
+				DRM_DEBUG("IH: D2 vline\n");
+
 				break;
 			default:
 				DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
@@ -4925,23 +4933,27 @@ restart_ih:
 		case 3: /* D3 vblank/vline */
 			switch (src_data) {
 			case 0: /* D3 vblank */
-				if (rdev->irq.stat_regs.evergreen.disp_int_cont2 & LB_D3_VBLANK_INTERRUPT) {
-					if (rdev->irq.crtc_vblank_int[2]) {
-						drm_handle_vblank(rdev->ddev, 2);
-						rdev->pm.vblank_sync = true;
-						wake_up(&rdev->irq.vblank_queue);
-					}
-					if (atomic_read(&rdev->irq.pflip[2]))
-						radeon_crtc_handle_vblank(rdev, 2);
-					rdev->irq.stat_regs.evergreen.disp_int_cont2 &= ~LB_D3_VBLANK_INTERRUPT;
-					DRM_DEBUG("IH: D3 vblank\n");
+				if (!(rdev->irq.stat_regs.evergreen.disp_int_cont2 & LB_D3_VBLANK_INTERRUPT))
+					DRM_DEBUG("IH: D3 vblank - IH event w/o asserted irq bit?\n");
+
+				if (rdev->irq.crtc_vblank_int[2]) {
+					drm_handle_vblank(rdev->ddev, 2);
+					rdev->pm.vblank_sync = true;
+					wake_up(&rdev->irq.vblank_queue);
 				}
+				if (atomic_read(&rdev->irq.pflip[2]))
+					radeon_crtc_handle_vblank(rdev, 2);
+				rdev->irq.stat_regs.evergreen.disp_int_cont2 &= ~LB_D3_VBLANK_INTERRUPT;
+				DRM_DEBUG("IH: D3 vblank\n");
+
 				break;
 			case 1: /* D3 vline */
-				if (rdev->irq.stat_regs.evergreen.disp_int_cont2 & LB_D3_VLINE_INTERRUPT) {
-					rdev->irq.stat_regs.evergreen.disp_int_cont2 &= ~LB_D3_VLINE_INTERRUPT;
-					DRM_DEBUG("IH: D3 vline\n");
-				}
+				if (!(rdev->irq.stat_regs.evergreen.disp_int_cont2 & LB_D3_VLINE_INTERRUPT))
+					DRM_DEBUG("IH: D3 vline - IH event w/o asserted irq bit?\n");
+
+				rdev->irq.stat_regs.evergreen.disp_int_cont2 &= ~LB_D3_VLINE_INTERRUPT;
+				DRM_DEBUG("IH: D3 vline\n");
+
 				break;
 			default:
 				DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
@@ -4951,23 +4963,27 @@ restart_ih:
 		case 4: /* D4 vblank/vline */
 			switch (src_data) {
 			case 0: /* D4 vblank */
-				if (rdev->irq.stat_regs.evergreen.disp_int_cont3 & LB_D4_VBLANK_INTERRUPT) {
-					if (rdev->irq.crtc_vblank_int[3]) {
-						drm_handle_vblank(rdev->ddev, 3);
-						rdev->pm.vblank_sync = true;
-						wake_up(&rdev->irq.vblank_queue);
-					}
-					if (atomic_read(&rdev->irq.pflip[3]))
-						radeon_crtc_handle_vblank(rdev, 3);
-					rdev->irq.stat_regs.evergreen.disp_int_cont3 &= ~LB_D4_VBLANK_INTERRUPT;
-					DRM_DEBUG("IH: D4 vblank\n");
+				if (!(rdev->irq.stat_regs.evergreen.disp_int_cont3 & LB_D4_VBLANK_INTERRUPT))
+					DRM_DEBUG("IH: D4 vblank - IH event w/o asserted irq bit?\n");
+
+				if (rdev->irq.crtc_vblank_int[3]) {
+					drm_handle_vblank(rdev->ddev, 3);
+					rdev->pm.vblank_sync = true;
+					wake_up(&rdev->irq.vblank_queue);
 				}
+				if (atomic_read(&rdev->irq.pflip[3]))
+					radeon_crtc_handle_vblank(rdev, 3);
+				rdev->irq.stat_regs.evergreen.disp_int_cont3 &= ~LB_D4_VBLANK_INTERRUPT;
+				DRM_DEBUG("IH: D4 vblank\n");
+
 				break;
 			case 1: /* D4 vline */
-				if (rdev->irq.stat_regs.evergreen.disp_int_cont3 & LB_D4_VLINE_INTERRUPT) {
-					rdev->irq.stat_regs.evergreen.disp_int_cont3 &= ~LB_D4_VLINE_INTERRUPT;
-					DRM_DEBUG("IH: D4 vline\n");
-				}
+				if (!(rdev->irq.stat_regs.evergreen.disp_int_cont3 & LB_D4_VLINE_INTERRUPT))
+					DRM_DEBUG("IH: D4 vline - IH event w/o asserted irq bit?\n");
+
+				rdev->irq.stat_regs.evergreen.disp_int_cont3 &= ~LB_D4_VLINE_INTERRUPT;
+				DRM_DEBUG("IH: D4 vline\n");
+
 				break;
 			default:
 				DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
@@ -4977,23 +4993,27 @@ restart_ih:
 		case 5: /* D5 vblank/vline */
 			switch (src_data) {
 			case 0: /* D5 vblank */
-				if (rdev->irq.stat_regs.evergreen.disp_int_cont4 & LB_D5_VBLANK_INTERRUPT) {
-					if (rdev->irq.crtc_vblank_int[4]) {
-						drm_handle_vblank(rdev->ddev, 4);
-						rdev->pm.vblank_sync = true;
-						wake_up(&rdev->irq.vblank_queue);
-					}
-					if (atomic_read(&rdev->irq.pflip[4]))
-						radeon_crtc_handle_vblank(rdev, 4);
-					rdev->irq.stat_regs.evergreen.disp_int_cont4 &= ~LB_D5_VBLANK_INTERRUPT;
-					DRM_DEBUG("IH: D5 vblank\n");
+				if (!(rdev->irq.stat_regs.evergreen.disp_int_cont4 & LB_D5_VBLANK_INTERRUPT))
+					DRM_DEBUG("IH: D5 vblank - IH event w/o asserted irq bit?\n");
+
+				if (rdev->irq.crtc_vblank_int[4]) {
+					drm_handle_vblank(rdev->ddev, 4);
+					rdev->pm.vblank_sync = true;
+					wake_up(&rdev->irq.vblank_queue);
 				}
+				if (atomic_read(&rdev->irq.pflip[4]))
+					radeon_crtc_handle_vblank(rdev, 4);
+				rdev->irq.stat_regs.evergreen.disp_int_cont4 &= ~LB_D5_VBLANK_INTERRUPT;
+				DRM_DEBUG("IH: D5 vblank\n");
+
 				break;
 			case 1: /* D5 vline */
-				if (rdev->irq.stat_regs.evergreen.disp_int_cont4 & LB_D5_VLINE_INTERRUPT) {
-					rdev->irq.stat_regs.evergreen.disp_int_cont4 &= ~LB_D5_VLINE_INTERRUPT;
-					DRM_DEBUG("IH: D5 vline\n");
-				}
+				if (!(rdev->irq.stat_regs.evergreen.disp_int_cont4 & LB_D5_VLINE_INTERRUPT))
+					DRM_DEBUG("IH: D5 vline - IH event w/o asserted irq bit?\n");
+
+				rdev->irq.stat_regs.evergreen.disp_int_cont4 &= ~LB_D5_VLINE_INTERRUPT;
+				DRM_DEBUG("IH: D5 vline\n");
+
 				break;
 			default:
 				DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
@@ -5003,23 +5023,27 @@ restart_ih:
 		case 6: /* D6 vblank/vline */
 			switch (src_data) {
 			case 0: /* D6 vblank */
-				if (rdev->irq.stat_regs.evergreen.disp_int_cont5 & LB_D6_VBLANK_INTERRUPT) {
-					if (rdev->irq.crtc_vblank_int[5]) {
-						drm_handle_vblank(rdev->ddev, 5);
-						rdev->pm.vblank_sync = true;
-						wake_up(&rdev->irq.vblank_queue);
-					}
-					if (atomic_read(&rdev->irq.pflip[5]))
-						radeon_crtc_handle_vblank(rdev, 5);
-					rdev->irq.stat_regs.evergreen.disp_int_cont5 &= ~LB_D6_VBLANK_INTERRUPT;
-					DRM_DEBUG("IH: D6 vblank\n");
+				if (!(rdev->irq.stat_regs.evergreen.disp_int_cont5 & LB_D6_VBLANK_INTERRUPT))
+					DRM_DEBUG("IH: D6 vblank - IH event w/o asserted irq bit?\n");
+
+				if (rdev->irq.crtc_vblank_int[5]) {
+					drm_handle_vblank(rdev->ddev, 5);
+					rdev->pm.vblank_sync = true;
+					wake_up(&rdev->irq.vblank_queue);
 				}
+				if (atomic_read(&rdev->irq.pflip[5]))
+					radeon_crtc_handle_vblank(rdev, 5);
+				rdev->irq.stat_regs.evergreen.disp_int_cont5 &= ~LB_D6_VBLANK_INTERRUPT;
+				DRM_DEBUG("IH: D6 vblank\n");
+
 				break;
 			case 1: /* D6 vline */
-				if (rdev->irq.stat_regs.evergreen.disp_int_cont5 & LB_D6_VLINE_INTERRUPT) {
-					rdev->irq.stat_regs.evergreen.disp_int_cont5 &= ~LB_D6_VLINE_INTERRUPT;
-					DRM_DEBUG("IH: D6 vline\n");
-				}
+				if (!(rdev->irq.stat_regs.evergreen.disp_int_cont5 & LB_D6_VLINE_INTERRUPT))
+					DRM_DEBUG("IH: D6 vline - IH event w/o asserted irq bit?\n");
+
+				rdev->irq.stat_regs.evergreen.disp_int_cont5 &= ~LB_D6_VLINE_INTERRUPT;
+				DRM_DEBUG("IH: D6 vline\n");
+
 				break;
 			default:
 				DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
@@ -5039,88 +5063,100 @@ restart_ih:
 		case 42: /* HPD hotplug */
 			switch (src_data) {
 			case 0:
-				if (rdev->irq.stat_regs.evergreen.disp_int & DC_HPD1_INTERRUPT) {
-					rdev->irq.stat_regs.evergreen.disp_int &= ~DC_HPD1_INTERRUPT;
-					queue_hotplug = true;
-					DRM_DEBUG("IH: HPD1\n");
-				}
+				if (!(rdev->irq.stat_regs.evergreen.disp_int & DC_HPD1_INTERRUPT))
+					DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+				rdev->irq.stat_regs.evergreen.disp_int &= ~DC_HPD1_INTERRUPT;
+				queue_hotplug = true;
+				DRM_DEBUG("IH: HPD1\n");
 				break;
 			case 1:
-				if (rdev->irq.stat_regs.evergreen.disp_int_cont & DC_HPD2_INTERRUPT) {
-					rdev->irq.stat_regs.evergreen.disp_int_cont &= ~DC_HPD2_INTERRUPT;
-					queue_hotplug = true;
-					DRM_DEBUG("IH: HPD2\n");
-				}
+				if (!(rdev->irq.stat_regs.evergreen.disp_int_cont & DC_HPD2_INTERRUPT))
+					DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+				rdev->irq.stat_regs.evergreen.disp_int_cont &= ~DC_HPD2_INTERRUPT;
+				queue_hotplug = true;
+				DRM_DEBUG("IH: HPD2\n");
 				break;
 			case 2:
-				if (rdev->irq.stat_regs.evergreen.disp_int_cont2 & DC_HPD3_INTERRUPT) {
-					rdev->irq.stat_regs.evergreen.disp_int_cont2 &= ~DC_HPD3_INTERRUPT;
-					queue_hotplug = true;
-					DRM_DEBUG("IH: HPD3\n");
-				}
+				if (!(rdev->irq.stat_regs.evergreen.disp_int_cont2 & DC_HPD3_INTERRUPT))
+					DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+				rdev->irq.stat_regs.evergreen.disp_int_cont2 &= ~DC_HPD3_INTERRUPT;
+				queue_hotplug = true;
+				DRM_DEBUG("IH: HPD3\n");
 				break;
 			case 3:
-				if (rdev->irq.stat_regs.evergreen.disp_int_cont3 & DC_HPD4_INTERRUPT) {
-					rdev->irq.stat_regs.evergreen.disp_int_cont3 &= ~DC_HPD4_INTERRUPT;
-					queue_hotplug = true;
-					DRM_DEBUG("IH: HPD4\n");
-				}
+				if (!(rdev->irq.stat_regs.evergreen.disp_int_cont3 & DC_HPD4_INTERRUPT))
+					DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+				rdev->irq.stat_regs.evergreen.disp_int_cont3 &= ~DC_HPD4_INTERRUPT;
+				queue_hotplug = true;
+				DRM_DEBUG("IH: HPD4\n");
 				break;
 			case 4:
-				if (rdev->irq.stat_regs.evergreen.disp_int_cont4 & DC_HPD5_INTERRUPT) {
-					rdev->irq.stat_regs.evergreen.disp_int_cont4 &= ~DC_HPD5_INTERRUPT;
-					queue_hotplug = true;
-					DRM_DEBUG("IH: HPD5\n");
-				}
+				if (!(rdev->irq.stat_regs.evergreen.disp_int_cont4 & DC_HPD5_INTERRUPT))
+					DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+				rdev->irq.stat_regs.evergreen.disp_int_cont4 &= ~DC_HPD5_INTERRUPT;
+				queue_hotplug = true;
+				DRM_DEBUG("IH: HPD5\n");
 				break;
 			case 5:
-				if (rdev->irq.stat_regs.evergreen.disp_int_cont5 & DC_HPD6_INTERRUPT) {
-					rdev->irq.stat_regs.evergreen.disp_int_cont5 &= ~DC_HPD6_INTERRUPT;
-					queue_hotplug = true;
-					DRM_DEBUG("IH: HPD6\n");
-				}
+				if (!(rdev->irq.stat_regs.evergreen.disp_int_cont5 & DC_HPD6_INTERRUPT))
+					DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+				rdev->irq.stat_regs.evergreen.disp_int_cont5 &= ~DC_HPD6_INTERRUPT;
+				queue_hotplug = true;
+				DRM_DEBUG("IH: HPD6\n");
 				break;
 			case 6:
-				if (rdev->irq.stat_regs.evergreen.disp_int & DC_HPD1_RX_INTERRUPT) {
-					rdev->irq.stat_regs.evergreen.disp_int &= ~DC_HPD1_RX_INTERRUPT;
-					queue_dp = true;
-					DRM_DEBUG("IH: HPD_RX 1\n");
-				}
+				if (!(rdev->irq.stat_regs.evergreen.disp_int & DC_HPD1_RX_INTERRUPT))
+					DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+				rdev->irq.stat_regs.evergreen.disp_int &= ~DC_HPD1_RX_INTERRUPT;
+				queue_dp = true;
+				DRM_DEBUG("IH: HPD_RX 1\n");
 				break;
 			case 7:
-				if (rdev->irq.stat_regs.evergreen.disp_int_cont & DC_HPD2_RX_INTERRUPT) {
-					rdev->irq.stat_regs.evergreen.disp_int_cont &= ~DC_HPD2_RX_INTERRUPT;
-					queue_dp = true;
-					DRM_DEBUG("IH: HPD_RX 2\n");
-				}
+				if (!(rdev->irq.stat_regs.evergreen.disp_int_cont & DC_HPD2_RX_INTERRUPT))
+					DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+				rdev->irq.stat_regs.evergreen.disp_int_cont &= ~DC_HPD2_RX_INTERRUPT;
+				queue_dp = true;
+				DRM_DEBUG("IH: HPD_RX 2\n");
 				break;
 			case 8:
-				if (rdev->irq.stat_regs.evergreen.disp_int_cont2 & DC_HPD3_RX_INTERRUPT) {
-					rdev->irq.stat_regs.evergreen.disp_int_cont2 &= ~DC_HPD3_RX_INTERRUPT;
-					queue_dp = true;
-					DRM_DEBUG("IH: HPD_RX 3\n");
-				}
+				if (!(rdev->irq.stat_regs.evergreen.disp_int_cont2 & DC_HPD3_RX_INTERRUPT))
+					DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+				rdev->irq.stat_regs.evergreen.disp_int_cont2 &= ~DC_HPD3_RX_INTERRUPT;
+				queue_dp = true;
+				DRM_DEBUG("IH: HPD_RX 3\n");
 				break;
 			case 9:
-				if (rdev->irq.stat_regs.evergreen.disp_int_cont3 & DC_HPD4_RX_INTERRUPT) {
-					rdev->irq.stat_regs.evergreen.disp_int_cont3 &= ~DC_HPD4_RX_INTERRUPT;
-					queue_dp = true;
-					DRM_DEBUG("IH: HPD_RX 4\n");
-				}
+				if (!(rdev->irq.stat_regs.evergreen.disp_int_cont3 & DC_HPD4_RX_INTERRUPT))
+					DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+				rdev->irq.stat_regs.evergreen.disp_int_cont3 &= ~DC_HPD4_RX_INTERRUPT;
+				queue_dp = true;
+				DRM_DEBUG("IH: HPD_RX 4\n");
 				break;
 			case 10:
-				if (rdev->irq.stat_regs.evergreen.disp_int_cont4 & DC_HPD5_RX_INTERRUPT) {
-					rdev->irq.stat_regs.evergreen.disp_int_cont4 &= ~DC_HPD5_RX_INTERRUPT;
-					queue_dp = true;
-					DRM_DEBUG("IH: HPD_RX 5\n");
-				}
+				if (!(rdev->irq.stat_regs.evergreen.disp_int_cont4 & DC_HPD5_RX_INTERRUPT))
+					DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+				rdev->irq.stat_regs.evergreen.disp_int_cont4 &= ~DC_HPD5_RX_INTERRUPT;
+				queue_dp = true;
+				DRM_DEBUG("IH: HPD_RX 5\n");
 				break;
 			case 11:
-				if (rdev->irq.stat_regs.evergreen.disp_int_cont5 & DC_HPD6_RX_INTERRUPT) {
-					rdev->irq.stat_regs.evergreen.disp_int_cont5 &= ~DC_HPD6_RX_INTERRUPT;
-					queue_dp = true;
-					DRM_DEBUG("IH: HPD_RX 6\n");
-				}
+				if (!(rdev->irq.stat_regs.evergreen.disp_int_cont5 & DC_HPD6_RX_INTERRUPT))
+					DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+				rdev->irq.stat_regs.evergreen.disp_int_cont5 &= ~DC_HPD6_RX_INTERRUPT;
+				queue_dp = true;
+				DRM_DEBUG("IH: HPD_RX 6\n");
 				break;
 			default:
 				DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
@@ -5130,46 +5166,52 @@ restart_ih:
 		case 44: /* hdmi */
 			switch (src_data) {
 			case 0:
-				if (rdev->irq.stat_regs.evergreen.afmt_status1 & AFMT_AZ_FORMAT_WTRIG) {
-					rdev->irq.stat_regs.evergreen.afmt_status1 &= ~AFMT_AZ_FORMAT_WTRIG;
-					queue_hdmi = true;
-					DRM_DEBUG("IH: HDMI0\n");
-				}
+				if (!(rdev->irq.stat_regs.evergreen.afmt_status1 & AFMT_AZ_FORMAT_WTRIG))
+					DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+				rdev->irq.stat_regs.evergreen.afmt_status1 &= ~AFMT_AZ_FORMAT_WTRIG;
+				queue_hdmi = true;
+				DRM_DEBUG("IH: HDMI0\n");
 				break;
 			case 1:
-				if (rdev->irq.stat_regs.evergreen.afmt_status2 & AFMT_AZ_FORMAT_WTRIG) {
-					rdev->irq.stat_regs.evergreen.afmt_status2 &= ~AFMT_AZ_FORMAT_WTRIG;
-					queue_hdmi = true;
-					DRM_DEBUG("IH: HDMI1\n");
-				}
+				if (!(rdev->irq.stat_regs.evergreen.afmt_status2 & AFMT_AZ_FORMAT_WTRIG))
+					DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+				rdev->irq.stat_regs.evergreen.afmt_status2 &= ~AFMT_AZ_FORMAT_WTRIG;
+				queue_hdmi = true;
+				DRM_DEBUG("IH: HDMI1\n");
 				break;
 			case 2:
-				if (rdev->irq.stat_regs.evergreen.afmt_status3 & AFMT_AZ_FORMAT_WTRIG) {
-					rdev->irq.stat_regs.evergreen.afmt_status3 &= ~AFMT_AZ_FORMAT_WTRIG;
-					queue_hdmi = true;
-					DRM_DEBUG("IH: HDMI2\n");
-				}
+				if (!(rdev->irq.stat_regs.evergreen.afmt_status3 & AFMT_AZ_FORMAT_WTRIG))
+					DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+				rdev->irq.stat_regs.evergreen.afmt_status3 &= ~AFMT_AZ_FORMAT_WTRIG;
+				queue_hdmi = true;
+				DRM_DEBUG("IH: HDMI2\n");
 				break;
 			case 3:
-				if (rdev->irq.stat_regs.evergreen.afmt_status4 & AFMT_AZ_FORMAT_WTRIG) {
-					rdev->irq.stat_regs.evergreen.afmt_status4 &= ~AFMT_AZ_FORMAT_WTRIG;
-					queue_hdmi = true;
-					DRM_DEBUG("IH: HDMI3\n");
-				}
+				if (!(rdev->irq.stat_regs.evergreen.afmt_status4 & AFMT_AZ_FORMAT_WTRIG))
+					DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+				rdev->irq.stat_regs.evergreen.afmt_status4 &= ~AFMT_AZ_FORMAT_WTRIG;
+				queue_hdmi = true;
+				DRM_DEBUG("IH: HDMI3\n");
 				break;
 			case 4:
-				if (rdev->irq.stat_regs.evergreen.afmt_status5 & AFMT_AZ_FORMAT_WTRIG) {
-					rdev->irq.stat_regs.evergreen.afmt_status5 &= ~AFMT_AZ_FORMAT_WTRIG;
-					queue_hdmi = true;
-					DRM_DEBUG("IH: HDMI4\n");
-				}
+				if (!(rdev->irq.stat_regs.evergreen.afmt_status5 & AFMT_AZ_FORMAT_WTRIG))
+					DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+				rdev->irq.stat_regs.evergreen.afmt_status5 &= ~AFMT_AZ_FORMAT_WTRIG;
+				queue_hdmi = true;
+				DRM_DEBUG("IH: HDMI4\n");
 				break;
 			case 5:
-				if (rdev->irq.stat_regs.evergreen.afmt_status6 & AFMT_AZ_FORMAT_WTRIG) {
-					rdev->irq.stat_regs.evergreen.afmt_status6 &= ~AFMT_AZ_FORMAT_WTRIG;
-					queue_hdmi = true;
-					DRM_DEBUG("IH: HDMI5\n");
-				}
+				if (!(rdev->irq.stat_regs.evergreen.afmt_status6 & AFMT_AZ_FORMAT_WTRIG))
+					DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+				rdev->irq.stat_regs.evergreen.afmt_status6 &= ~AFMT_AZ_FORMAT_WTRIG;
+				queue_hdmi = true;
+				DRM_DEBUG("IH: HDMI5\n");
 				break;
 			default:
 				DRM_ERROR("Unhandled interrupt: %d %d\n", src_id, src_data);
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/gpu/drm/radeon/r600.c linux-libre-4.1.6-gnu/drivers/gpu/drm/radeon/r600.c
--- linux-libre-4.1-gnu/drivers/gpu/drm/radeon/r600.c	2015-06-22 01:50:36.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/gpu/drm/radeon/r600.c	2015-08-17 08:20:53.000000000 -0400
@@ -3991,23 +3991,27 @@ restart_ih:
 		case 1: /* D1 vblank/vline */
 			switch (src_data) {
 			case 0: /* D1 vblank */
-				if (rdev->irq.stat_regs.r600.disp_int & LB_D1_VBLANK_INTERRUPT) {
-					if (rdev->irq.crtc_vblank_int[0]) {
-						drm_handle_vblank(rdev->ddev, 0);
-						rdev->pm.vblank_sync = true;
-						wake_up(&rdev->irq.vblank_queue);
-					}
-					if (atomic_read(&rdev->irq.pflip[0]))
-						radeon_crtc_handle_vblank(rdev, 0);
-					rdev->irq.stat_regs.r600.disp_int &= ~LB_D1_VBLANK_INTERRUPT;
-					DRM_DEBUG("IH: D1 vblank\n");
+				if (!(rdev->irq.stat_regs.r600.disp_int & LB_D1_VBLANK_INTERRUPT))
+					DRM_DEBUG("IH: D1 vblank - IH event w/o asserted irq bit?\n");
+
+				if (rdev->irq.crtc_vblank_int[0]) {
+					drm_handle_vblank(rdev->ddev, 0);
+					rdev->pm.vblank_sync = true;
+					wake_up(&rdev->irq.vblank_queue);
 				}
+				if (atomic_read(&rdev->irq.pflip[0]))
+					radeon_crtc_handle_vblank(rdev, 0);
+				rdev->irq.stat_regs.r600.disp_int &= ~LB_D1_VBLANK_INTERRUPT;
+				DRM_DEBUG("IH: D1 vblank\n");
+
 				break;
 			case 1: /* D1 vline */
-				if (rdev->irq.stat_regs.r600.disp_int & LB_D1_VLINE_INTERRUPT) {
-					rdev->irq.stat_regs.r600.disp_int &= ~LB_D1_VLINE_INTERRUPT;
-					DRM_DEBUG("IH: D1 vline\n");
-				}
+				if (!(rdev->irq.stat_regs.r600.disp_int & LB_D1_VLINE_INTERRUPT))
+				    DRM_DEBUG("IH: D1 vline - IH event w/o asserted irq bit?\n");
+
+				rdev->irq.stat_regs.r600.disp_int &= ~LB_D1_VLINE_INTERRUPT;
+				DRM_DEBUG("IH: D1 vline\n");
+
 				break;
 			default:
 				DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
@@ -4017,23 +4021,27 @@ restart_ih:
 		case 5: /* D2 vblank/vline */
 			switch (src_data) {
 			case 0: /* D2 vblank */
-				if (rdev->irq.stat_regs.r600.disp_int & LB_D2_VBLANK_INTERRUPT) {
-					if (rdev->irq.crtc_vblank_int[1]) {
-						drm_handle_vblank(rdev->ddev, 1);
-						rdev->pm.vblank_sync = true;
-						wake_up(&rdev->irq.vblank_queue);
-					}
-					if (atomic_read(&rdev->irq.pflip[1]))
-						radeon_crtc_handle_vblank(rdev, 1);
-					rdev->irq.stat_regs.r600.disp_int &= ~LB_D2_VBLANK_INTERRUPT;
-					DRM_DEBUG("IH: D2 vblank\n");
+				if (!(rdev->irq.stat_regs.r600.disp_int & LB_D2_VBLANK_INTERRUPT))
+					DRM_DEBUG("IH: D2 vblank - IH event w/o asserted irq bit?\n");
+
+				if (rdev->irq.crtc_vblank_int[1]) {
+					drm_handle_vblank(rdev->ddev, 1);
+					rdev->pm.vblank_sync = true;
+					wake_up(&rdev->irq.vblank_queue);
 				}
+				if (atomic_read(&rdev->irq.pflip[1]))
+					radeon_crtc_handle_vblank(rdev, 1);
+				rdev->irq.stat_regs.r600.disp_int &= ~LB_D2_VBLANK_INTERRUPT;
+				DRM_DEBUG("IH: D2 vblank\n");
+
 				break;
 			case 1: /* D1 vline */
-				if (rdev->irq.stat_regs.r600.disp_int & LB_D2_VLINE_INTERRUPT) {
-					rdev->irq.stat_regs.r600.disp_int &= ~LB_D2_VLINE_INTERRUPT;
-					DRM_DEBUG("IH: D2 vline\n");
-				}
+				if (!(rdev->irq.stat_regs.r600.disp_int & LB_D2_VLINE_INTERRUPT))
+					DRM_DEBUG("IH: D2 vline - IH event w/o asserted irq bit?\n");
+
+				rdev->irq.stat_regs.r600.disp_int &= ~LB_D2_VLINE_INTERRUPT;
+				DRM_DEBUG("IH: D2 vline\n");
+
 				break;
 			default:
 				DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
@@ -4053,46 +4061,53 @@ restart_ih:
 		case 19: /* HPD/DAC hotplug */
 			switch (src_data) {
 			case 0:
-				if (rdev->irq.stat_regs.r600.disp_int & DC_HPD1_INTERRUPT) {
-					rdev->irq.stat_regs.r600.disp_int &= ~DC_HPD1_INTERRUPT;
-					queue_hotplug = true;
-					DRM_DEBUG("IH: HPD1\n");
-				}
+				if (!(rdev->irq.stat_regs.r600.disp_int & DC_HPD1_INTERRUPT))
+					DRM_DEBUG("IH: HPD1 - IH event w/o asserted irq bit?\n");
+
+				rdev->irq.stat_regs.r600.disp_int &= ~DC_HPD1_INTERRUPT;
+				queue_hotplug = true;
+				DRM_DEBUG("IH: HPD1\n");
 				break;
 			case 1:
-				if (rdev->irq.stat_regs.r600.disp_int & DC_HPD2_INTERRUPT) {
-					rdev->irq.stat_regs.r600.disp_int &= ~DC_HPD2_INTERRUPT;
-					queue_hotplug = true;
-					DRM_DEBUG("IH: HPD2\n");
-				}
+				if (!(rdev->irq.stat_regs.r600.disp_int & DC_HPD2_INTERRUPT))
+					DRM_DEBUG("IH: HPD2 - IH event w/o asserted irq bit?\n");
+
+				rdev->irq.stat_regs.r600.disp_int &= ~DC_HPD2_INTERRUPT;
+				queue_hotplug = true;
+				DRM_DEBUG("IH: HPD2\n");
 				break;
 			case 4:
-				if (rdev->irq.stat_regs.r600.disp_int_cont & DC_HPD3_INTERRUPT) {
-					rdev->irq.stat_regs.r600.disp_int_cont &= ~DC_HPD3_INTERRUPT;
-					queue_hotplug = true;
-					DRM_DEBUG("IH: HPD3\n");
-				}
+				if (!(rdev->irq.stat_regs.r600.disp_int_cont & DC_HPD3_INTERRUPT))
+					DRM_DEBUG("IH: HPD3 - IH event w/o asserted irq bit?\n");
+
+				rdev->irq.stat_regs.r600.disp_int_cont &= ~DC_HPD3_INTERRUPT;
+				queue_hotplug = true;
+				DRM_DEBUG("IH: HPD3\n");
 				break;
 			case 5:
-				if (rdev->irq.stat_regs.r600.disp_int_cont & DC_HPD4_INTERRUPT) {
-					rdev->irq.stat_regs.r600.disp_int_cont &= ~DC_HPD4_INTERRUPT;
-					queue_hotplug = true;
-					DRM_DEBUG("IH: HPD4\n");
-				}
+				if (!(rdev->irq.stat_regs.r600.disp_int_cont & DC_HPD4_INTERRUPT))
+					DRM_DEBUG("IH: HPD4 - IH event w/o asserted irq bit?\n");
+
+				rdev->irq.stat_regs.r600.disp_int_cont &= ~DC_HPD4_INTERRUPT;
+				queue_hotplug = true;
+				DRM_DEBUG("IH: HPD4\n");
 				break;
 			case 10:
-				if (rdev->irq.stat_regs.r600.disp_int_cont2 & DC_HPD5_INTERRUPT) {
-					rdev->irq.stat_regs.r600.disp_int_cont2 &= ~DC_HPD5_INTERRUPT;
-					queue_hotplug = true;
-					DRM_DEBUG("IH: HPD5\n");
-				}
+				if (!(rdev->irq.stat_regs.r600.disp_int_cont2 & DC_HPD5_INTERRUPT))
+					DRM_DEBUG("IH: HPD5 - IH event w/o asserted irq bit?\n");
+
+				rdev->irq.stat_regs.r600.disp_int_cont2 &= ~DC_HPD5_INTERRUPT;
+				queue_hotplug = true;
+				DRM_DEBUG("IH: HPD5\n");
 				break;
 			case 12:
-				if (rdev->irq.stat_regs.r600.disp_int_cont2 & DC_HPD6_INTERRUPT) {
-					rdev->irq.stat_regs.r600.disp_int_cont2 &= ~DC_HPD6_INTERRUPT;
-					queue_hotplug = true;
-					DRM_DEBUG("IH: HPD6\n");
-				}
+				if (!(rdev->irq.stat_regs.r600.disp_int_cont2 & DC_HPD6_INTERRUPT))
+					DRM_DEBUG("IH: HPD6 - IH event w/o asserted irq bit?\n");
+
+				rdev->irq.stat_regs.r600.disp_int_cont2 &= ~DC_HPD6_INTERRUPT;
+				queue_hotplug = true;
+				DRM_DEBUG("IH: HPD6\n");
+
 				break;
 			default:
 				DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
@@ -4102,18 +4117,22 @@ restart_ih:
 		case 21: /* hdmi */
 			switch (src_data) {
 			case 4:
-				if (rdev->irq.stat_regs.r600.hdmi0_status & HDMI0_AZ_FORMAT_WTRIG) {
-					rdev->irq.stat_regs.r600.hdmi0_status &= ~HDMI0_AZ_FORMAT_WTRIG;
-					queue_hdmi = true;
-					DRM_DEBUG("IH: HDMI0\n");
-				}
+				if (!(rdev->irq.stat_regs.r600.hdmi0_status & HDMI0_AZ_FORMAT_WTRIG))
+					DRM_DEBUG("IH: HDMI0 - IH event w/o asserted irq bit?\n");
+
+				rdev->irq.stat_regs.r600.hdmi0_status &= ~HDMI0_AZ_FORMAT_WTRIG;
+				queue_hdmi = true;
+				DRM_DEBUG("IH: HDMI0\n");
+
 				break;
 			case 5:
-				if (rdev->irq.stat_regs.r600.hdmi1_status & HDMI0_AZ_FORMAT_WTRIG) {
-					rdev->irq.stat_regs.r600.hdmi1_status &= ~HDMI0_AZ_FORMAT_WTRIG;
-					queue_hdmi = true;
-					DRM_DEBUG("IH: HDMI1\n");
-				}
+				if (!(rdev->irq.stat_regs.r600.hdmi1_status & HDMI0_AZ_FORMAT_WTRIG))
+					DRM_DEBUG("IH: HDMI1 - IH event w/o asserted irq bit?\n");
+
+				rdev->irq.stat_regs.r600.hdmi1_status &= ~HDMI0_AZ_FORMAT_WTRIG;
+				queue_hdmi = true;
+				DRM_DEBUG("IH: HDMI1\n");
+
 				break;
 			default:
 				DRM_ERROR("Unhandled interrupt: %d %d\n", src_id, src_data);
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/gpu/drm/radeon/radeon_audio.c linux-libre-4.1.6-gnu/drivers/gpu/drm/radeon/radeon_audio.c
--- linux-libre-4.1-gnu/drivers/gpu/drm/radeon/radeon_audio.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/gpu/drm/radeon/radeon_audio.c	2015-08-16 23:52:51.000000000 -0400
@@ -242,6 +242,35 @@ static struct radeon_audio_funcs dce6_dp
 	.dpms = evergreen_dp_enable,
 };
 
+static void radeon_audio_enable(struct radeon_device *rdev,
+				struct r600_audio_pin *pin, u8 enable_mask)
+{
+	struct drm_encoder *encoder;
+	struct radeon_encoder *radeon_encoder;
+	struct radeon_encoder_atom_dig *dig;
+	int pin_count = 0;
+
+	if (!pin)
+		return;
+
+	if (rdev->mode_info.mode_config_initialized) {
+		list_for_each_entry(encoder, &rdev->ddev->mode_config.encoder_list, head) {
+			if (radeon_encoder_is_digital(encoder)) {
+				radeon_encoder = to_radeon_encoder(encoder);
+				dig = radeon_encoder->enc_priv;
+				if (dig->pin == pin)
+					pin_count++;
+			}
+		}
+
+		if ((pin_count > 1) && (enable_mask == 0))
+			return;
+	}
+
+	if (rdev->audio.funcs->enable)
+		rdev->audio.funcs->enable(rdev, pin, enable_mask);
+}
+
 static void radeon_audio_interface_init(struct radeon_device *rdev)
 {
 	if (ASIC_IS_DCE6(rdev)) {
@@ -307,7 +336,7 @@ int radeon_audio_init(struct radeon_devi
 
 	/* disable audio.  it will be set up later */
 	for (i = 0; i < rdev->audio.num_pins; i++)
-		radeon_audio_enable(rdev, &rdev->audio.pin[i], false);
+		radeon_audio_enable(rdev, &rdev->audio.pin[i], 0);
 
 	return 0;
 }
@@ -329,24 +358,13 @@ void radeon_audio_endpoint_wreg(struct r
 
 static void radeon_audio_write_sad_regs(struct drm_encoder *encoder)
 {
-	struct radeon_encoder *radeon_encoder;
-	struct drm_connector *connector;
-	struct radeon_connector *radeon_connector = NULL;
+	struct drm_connector *connector = radeon_get_connector_for_encoder(encoder);
+	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 	struct cea_sad *sads;
 	int sad_count;
 
-	list_for_each_entry(connector,
-		&encoder->dev->mode_config.connector_list, head) {
-		if (connector->encoder == encoder) {
-			radeon_connector = to_radeon_connector(connector);
-			break;
-		}
-	}
-
-	if (!radeon_connector) {
-		DRM_ERROR("Couldn't find encoder's connector\n");
+	if (!connector)
 		return;
-	}
 
 	sad_count = drm_edid_to_sad(radeon_connector_edid(connector), &sads);
 	if (sad_count <= 0) {
@@ -355,8 +373,6 @@ static void radeon_audio_write_sad_regs(
 	}
 	BUG_ON(!sads);
 
-	radeon_encoder = to_radeon_encoder(encoder);
-
 	if (radeon_encoder->audio && radeon_encoder->audio->write_sad_regs)
 		radeon_encoder->audio->write_sad_regs(encoder, sads, sad_count);
 
@@ -365,27 +381,16 @@ static void radeon_audio_write_sad_regs(
 
 static void radeon_audio_write_speaker_allocation(struct drm_encoder *encoder)
 {
+	struct drm_connector *connector = radeon_get_connector_for_encoder(encoder);
 	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
-	struct drm_connector *connector;
-	struct radeon_connector *radeon_connector = NULL;
 	u8 *sadb = NULL;
 	int sad_count;
 
-	list_for_each_entry(connector,
-			    &encoder->dev->mode_config.connector_list, head) {
-		if (connector->encoder == encoder) {
-			radeon_connector = to_radeon_connector(connector);
-			break;
-		}
-	}
-
-	if (!radeon_connector) {
-		DRM_ERROR("Couldn't find encoder's connector\n");
+	if (!connector)
 		return;
-	}
 
-	sad_count = drm_edid_to_speaker_allocation(
-		radeon_connector_edid(connector), &sadb);
+	sad_count = drm_edid_to_speaker_allocation(radeon_connector_edid(connector),
+						   &sadb);
 	if (sad_count < 0) {
 		DRM_DEBUG("Couldn't read Speaker Allocation Data Block: %d\n",
 			  sad_count);
@@ -399,26 +404,13 @@ static void radeon_audio_write_speaker_a
 }
 
 static void radeon_audio_write_latency_fields(struct drm_encoder *encoder,
-	struct drm_display_mode *mode)
+					      struct drm_display_mode *mode)
 {
-	struct radeon_encoder *radeon_encoder;
-	struct drm_connector *connector;
-	struct radeon_connector *radeon_connector = 0;
-
-	list_for_each_entry(connector,
-		&encoder->dev->mode_config.connector_list, head) {
-		if (connector->encoder == encoder) {
-			radeon_connector = to_radeon_connector(connector);
-			break;
-		}
-	}
+	struct drm_connector *connector = radeon_get_connector_for_encoder(encoder);
+	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 
-	if (!radeon_connector) {
-		DRM_ERROR("Couldn't find encoder's connector\n");
+	if (!connector)
 		return;
-	}
-
-	radeon_encoder = to_radeon_encoder(encoder);
 
 	if (radeon_encoder->audio && radeon_encoder->audio->write_latency_fields)
 		radeon_encoder->audio->write_latency_fields(encoder, connector, mode);
@@ -443,54 +435,47 @@ static void radeon_audio_select_pin(stru
 		radeon_encoder->audio->select_pin(encoder);
 }
 
-void radeon_audio_enable(struct radeon_device *rdev,
-	struct r600_audio_pin *pin, u8 enable_mask)
-{
-	if (rdev->audio.funcs->enable)
-		rdev->audio.funcs->enable(rdev, pin, enable_mask);
-}
-
 void radeon_audio_detect(struct drm_connector *connector,
+			 struct drm_encoder *encoder,
 			 enum drm_connector_status status)
 {
-	struct radeon_device *rdev;
-	struct radeon_encoder *radeon_encoder;
+	struct drm_device *dev = connector->dev;
+	struct radeon_device *rdev = dev->dev_private;
+	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 	struct radeon_encoder_atom_dig *dig;
 
-	if (!connector || !connector->encoder)
+	if (!radeon_audio_chipset_supported(rdev))
 		return;
 
-	rdev = connector->encoder->dev->dev_private;
-
-	if (!radeon_audio_chipset_supported(rdev))
+	if (!radeon_encoder_is_digital(encoder))
 		return;
 
-	radeon_encoder = to_radeon_encoder(connector->encoder);
 	dig = radeon_encoder->enc_priv;
 
 	if (status == connector_status_connected) {
-		struct radeon_connector *radeon_connector;
-		int sink_type;
-
-		if (!drm_detect_monitor_audio(radeon_connector_edid(connector))) {
-			radeon_encoder->audio = NULL;
-			return;
-		}
-
-		radeon_connector = to_radeon_connector(connector);
-		sink_type = radeon_dp_getsinktype(radeon_connector);
+		if (connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort) {
+			struct radeon_connector *radeon_connector = to_radeon_connector(connector);
 
-		if (connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort &&
-			sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT)
-			radeon_encoder->audio = rdev->audio.dp_funcs;
-		else
+			if (radeon_dp_getsinktype(radeon_connector) ==
+			    CONNECTOR_OBJECT_ID_DISPLAYPORT)
+				radeon_encoder->audio = rdev->audio.dp_funcs;
+			else
+				radeon_encoder->audio = rdev->audio.hdmi_funcs;
+		} else {
 			radeon_encoder->audio = rdev->audio.hdmi_funcs;
+		}
 
-		dig->afmt->pin = radeon_audio_get_pin(connector->encoder);
-		radeon_audio_enable(rdev, dig->afmt->pin, 0xf);
+		if (drm_detect_monitor_audio(radeon_connector_edid(connector))) {
+			if (!dig->pin)
+				dig->pin = radeon_audio_get_pin(encoder);
+			radeon_audio_enable(rdev, dig->pin, 0xf);
+		} else {
+			radeon_audio_enable(rdev, dig->pin, 0);
+			dig->pin = NULL;
+		}
 	} else {
-		radeon_audio_enable(rdev, dig->afmt->pin, 0);
-		dig->afmt->pin = NULL;
+		radeon_audio_enable(rdev, dig->pin, 0);
+		dig->pin = NULL;
 	}
 }
 
@@ -502,7 +487,7 @@ void radeon_audio_fini(struct radeon_dev
 		return;
 
 	for (i = 0; i < rdev->audio.num_pins; i++)
-		radeon_audio_enable(rdev, &rdev->audio.pin[i], false);
+		radeon_audio_enable(rdev, &rdev->audio.pin[i], 0);
 
 	rdev->audio.enabled = false;
 }
@@ -518,29 +503,18 @@ static void radeon_audio_set_dto(struct
 }
 
 static int radeon_audio_set_avi_packet(struct drm_encoder *encoder,
-	struct drm_display_mode *mode)
+				       struct drm_display_mode *mode)
 {
 	struct radeon_device *rdev = encoder->dev->dev_private;
 	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 	struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
-	struct drm_connector *connector;
-	struct radeon_connector *radeon_connector = NULL;
+	struct drm_connector *connector = radeon_get_connector_for_encoder(encoder);
 	u8 buffer[HDMI_INFOFRAME_HEADER_SIZE + HDMI_AVI_INFOFRAME_SIZE];
 	struct hdmi_avi_infoframe frame;
 	int err;
 
-	list_for_each_entry(connector,
-		&encoder->dev->mode_config.connector_list, head) {
-		if (connector->encoder == encoder) {
-			radeon_connector = to_radeon_connector(connector);
-			break;
-		}
-	}
-
-	if (!radeon_connector) {
-		DRM_ERROR("Couldn't find encoder's connector\n");
-		return -ENOENT;
-	}
+	if (!connector)
+		return -EINVAL;
 
 	err = drm_hdmi_avi_infoframe_from_display_mode(&frame, mode);
 	if (err < 0) {
@@ -563,8 +537,8 @@ static int radeon_audio_set_avi_packet(s
 		return err;
 	}
 
-	if (dig && dig->afmt &&
-		radeon_encoder->audio && radeon_encoder->audio->set_avi_packet)
+	if (dig && dig->afmt && radeon_encoder->audio &&
+	    radeon_encoder->audio->set_avi_packet)
 		radeon_encoder->audio->set_avi_packet(rdev, dig->afmt->offset,
 			buffer, sizeof(buffer));
 
@@ -745,7 +719,7 @@ static void radeon_audio_hdmi_mode_set(s
 }
 
 static void radeon_audio_dp_mode_set(struct drm_encoder *encoder,
-	struct drm_display_mode *mode)
+				     struct drm_display_mode *mode)
 {
 	struct drm_device *dev = encoder->dev;
 	struct radeon_device *rdev = dev->dev_private;
@@ -756,6 +730,9 @@ static void radeon_audio_dp_mode_set(str
 	struct radeon_connector_atom_dig *dig_connector =
 		radeon_connector->con_priv;
 
+	if (!connector)
+		return;
+
 	if (!dig || !dig->afmt)
 		return;
 
@@ -774,7 +751,7 @@ static void radeon_audio_dp_mode_set(str
 }
 
 void radeon_audio_mode_set(struct drm_encoder *encoder,
-	struct drm_display_mode *mode)
+			   struct drm_display_mode *mode)
 {
 	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/gpu/drm/radeon/radeon_audio.h linux-libre-4.1.6-gnu/drivers/gpu/drm/radeon/radeon_audio.h
--- linux-libre-4.1-gnu/drivers/gpu/drm/radeon/radeon_audio.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/gpu/drm/radeon/radeon_audio.h	2015-08-16 23:52:51.000000000 -0400
@@ -68,14 +68,13 @@ struct radeon_audio_funcs
 
 int radeon_audio_init(struct radeon_device *rdev);
 void radeon_audio_detect(struct drm_connector *connector,
-	enum drm_connector_status status);
+			 struct drm_encoder *encoder,
+			 enum drm_connector_status status);
 u32 radeon_audio_endpoint_rreg(struct radeon_device *rdev,
 	u32 offset, u32 reg);
 void radeon_audio_endpoint_wreg(struct radeon_device *rdev,
 	u32 offset,	u32 reg, u32 v);
 struct r600_audio_pin *radeon_audio_get_pin(struct drm_encoder *encoder);
-void radeon_audio_enable(struct radeon_device *rdev,
-	struct r600_audio_pin *pin, u8 enable_mask);
 void radeon_audio_fini(struct radeon_device *rdev);
 void radeon_audio_mode_set(struct drm_encoder *encoder,
 	struct drm_display_mode *mode);
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/gpu/drm/radeon/radeon_combios.c linux-libre-4.1.6-gnu/drivers/gpu/drm/radeon/radeon_combios.c
--- linux-libre-4.1-gnu/drivers/gpu/drm/radeon/radeon_combios.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/gpu/drm/radeon/radeon_combios.c	2015-08-16 23:52:51.000000000 -0400
@@ -1255,10 +1255,15 @@ struct radeon_encoder_lvds *radeon_combi
 
 			if ((RBIOS16(tmp) == lvds->native_mode.hdisplay) &&
 			    (RBIOS16(tmp + 2) == lvds->native_mode.vdisplay)) {
+				u32 hss = (RBIOS16(tmp + 21) - RBIOS16(tmp + 19) - 1) * 8;
+
+				if (hss > lvds->native_mode.hdisplay)
+					hss = (10 - 1) * 8;
+
 				lvds->native_mode.htotal = lvds->native_mode.hdisplay +
 					(RBIOS16(tmp + 17) - RBIOS16(tmp + 19)) * 8;
 				lvds->native_mode.hsync_start = lvds->native_mode.hdisplay +
-					(RBIOS16(tmp + 21) - RBIOS16(tmp + 19) - 1) * 8;
+					hss;
 				lvds->native_mode.hsync_end = lvds->native_mode.hsync_start +
 					(RBIOS8(tmp + 23) * 8);
 
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/gpu/drm/radeon/radeon_connectors.c linux-libre-4.1.6-gnu/drivers/gpu/drm/radeon/radeon_connectors.c
--- linux-libre-4.1-gnu/drivers/gpu/drm/radeon/radeon_connectors.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/gpu/drm/radeon/radeon_connectors.c	2015-08-16 23:52:51.000000000 -0400
@@ -1379,8 +1379,16 @@ out:
 	/* updated in get modes as well since we need to know if it's analog or digital */
 	radeon_connector_update_scratch_regs(connector, ret);
 
-	if (radeon_audio != 0)
-		radeon_audio_detect(connector, ret);
+	if ((radeon_audio != 0) && radeon_connector->use_digital) {
+		const struct drm_connector_helper_funcs *connector_funcs =
+			connector->helper_private;
+
+		encoder = connector_funcs->best_encoder(connector);
+		if (encoder && (encoder->encoder_type == DRM_MODE_ENCODER_TMDS)) {
+			radeon_connector_get_edid(connector);
+			radeon_audio_detect(connector, encoder, ret);
+		}
+	}
 
 exit:
 	pm_runtime_mark_last_busy(connector->dev->dev);
@@ -1717,8 +1725,10 @@ radeon_dp_detect(struct drm_connector *c
 
 	radeon_connector_update_scratch_regs(connector, ret);
 
-	if (radeon_audio != 0)
-		radeon_audio_detect(connector, ret);
+	if ((radeon_audio != 0) && encoder) {
+		radeon_connector_get_edid(connector);
+		radeon_audio_detect(connector, encoder, ret);
+	}
 
 out:
 	pm_runtime_mark_last_busy(connector->dev->dev);
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/gpu/drm/radeon/radeon_cursor.c linux-libre-4.1.6-gnu/drivers/gpu/drm/radeon/radeon_cursor.c
--- linux-libre-4.1-gnu/drivers/gpu/drm/radeon/radeon_cursor.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/gpu/drm/radeon/radeon_cursor.c	2015-08-16 23:52:51.000000000 -0400
@@ -205,8 +205,9 @@ static int radeon_cursor_move_locked(str
 			| (x << 16)
 			| y));
 		/* offset is from DISP(2)_BASE_ADDRESS */
-		WREG32(RADEON_CUR_OFFSET + radeon_crtc->crtc_offset, (radeon_crtc->legacy_cursor_offset +
-								      (yorigin * 256)));
+		WREG32(RADEON_CUR_OFFSET + radeon_crtc->crtc_offset,
+		       radeon_crtc->cursor_addr - radeon_crtc->legacy_display_base_addr +
+		       yorigin * 256);
 	}
 
 	radeon_crtc->cursor_x = x;
@@ -227,51 +228,32 @@ int radeon_crtc_cursor_move(struct drm_c
 	return ret;
 }
 
-static int radeon_set_cursor(struct drm_crtc *crtc, struct drm_gem_object *obj)
+static void radeon_set_cursor(struct drm_crtc *crtc)
 {
 	struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
 	struct radeon_device *rdev = crtc->dev->dev_private;
-	struct radeon_bo *robj = gem_to_radeon_bo(obj);
-	uint64_t gpu_addr;
-	int ret;
-
-	ret = radeon_bo_reserve(robj, false);
-	if (unlikely(ret != 0))
-		goto fail;
-	/* Only 27 bit offset for legacy cursor */
-	ret = radeon_bo_pin_restricted(robj, RADEON_GEM_DOMAIN_VRAM,
-				       ASIC_IS_AVIVO(rdev) ? 0 : 1 << 27,
-				       &gpu_addr);
-	radeon_bo_unreserve(robj);
-	if (ret)
-		goto fail;
 
 	if (ASIC_IS_DCE4(rdev)) {
 		WREG32(EVERGREEN_CUR_SURFACE_ADDRESS_HIGH + radeon_crtc->crtc_offset,
-		       upper_32_bits(gpu_addr));
+		       upper_32_bits(radeon_crtc->cursor_addr));
 		WREG32(EVERGREEN_CUR_SURFACE_ADDRESS + radeon_crtc->crtc_offset,
-		       gpu_addr & 0xffffffff);
+		       lower_32_bits(radeon_crtc->cursor_addr));
 	} else if (ASIC_IS_AVIVO(rdev)) {
 		if (rdev->family >= CHIP_RV770) {
 			if (radeon_crtc->crtc_id)
-				WREG32(R700_D2CUR_SURFACE_ADDRESS_HIGH, upper_32_bits(gpu_addr));
+				WREG32(R700_D2CUR_SURFACE_ADDRESS_HIGH,
+				       upper_32_bits(radeon_crtc->cursor_addr));
 			else
-				WREG32(R700_D1CUR_SURFACE_ADDRESS_HIGH, upper_32_bits(gpu_addr));
+				WREG32(R700_D1CUR_SURFACE_ADDRESS_HIGH,
+				       upper_32_bits(radeon_crtc->cursor_addr));
 		}
 		WREG32(AVIVO_D1CUR_SURFACE_ADDRESS + radeon_crtc->crtc_offset,
-		       gpu_addr & 0xffffffff);
+		       lower_32_bits(radeon_crtc->cursor_addr));
 	} else {
-		radeon_crtc->legacy_cursor_offset = gpu_addr - radeon_crtc->legacy_display_base_addr;
 		/* offset is from DISP(2)_BASE_ADDRESS */
-		WREG32(RADEON_CUR_OFFSET + radeon_crtc->crtc_offset, radeon_crtc->legacy_cursor_offset);
+		WREG32(RADEON_CUR_OFFSET + radeon_crtc->crtc_offset,
+		       radeon_crtc->cursor_addr - radeon_crtc->legacy_display_base_addr);
 	}
-
-	return 0;
-
-fail:
-	drm_gem_object_unreference_unlocked(obj);
-
-	return ret;
 }
 
 int radeon_crtc_cursor_set2(struct drm_crtc *crtc,
@@ -283,7 +265,9 @@ int radeon_crtc_cursor_set2(struct drm_c
 			    int32_t hot_y)
 {
 	struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
+	struct radeon_device *rdev = crtc->dev->dev_private;
 	struct drm_gem_object *obj;
+	struct radeon_bo *robj;
 	int ret;
 
 	if (!handle) {
@@ -305,6 +289,23 @@ int radeon_crtc_cursor_set2(struct drm_c
 		return -ENOENT;
 	}
 
+	robj = gem_to_radeon_bo(obj);
+	ret = radeon_bo_reserve(robj, false);
+	if (ret != 0) {
+		drm_gem_object_unreference_unlocked(obj);
+		return ret;
+	}
+	/* Only 27 bit offset for legacy cursor */
+	ret = radeon_bo_pin_restricted(robj, RADEON_GEM_DOMAIN_VRAM,
+				       ASIC_IS_AVIVO(rdev) ? 0 : 1 << 27,
+				       &radeon_crtc->cursor_addr);
+	radeon_bo_unreserve(robj);
+	if (ret) {
+		DRM_ERROR("Failed to pin new cursor BO (%d)\n", ret);
+		drm_gem_object_unreference_unlocked(obj);
+		return ret;
+	}
+
 	radeon_crtc->cursor_width = width;
 	radeon_crtc->cursor_height = height;
 
@@ -323,13 +324,8 @@ int radeon_crtc_cursor_set2(struct drm_c
 		radeon_crtc->cursor_hot_y = hot_y;
 	}
 
-	ret = radeon_set_cursor(crtc, obj);
-
-	if (ret)
-		DRM_ERROR("radeon_set_cursor returned %d, not changing cursor\n",
-			  ret);
-	else
-		radeon_show_cursor(crtc);
+	radeon_set_cursor(crtc);
+	radeon_show_cursor(crtc);
 
 	radeon_lock_cursor(crtc, false);
 
@@ -341,8 +337,7 @@ unpin:
 			radeon_bo_unpin(robj);
 			radeon_bo_unreserve(robj);
 		}
-		if (radeon_crtc->cursor_bo != obj)
-			drm_gem_object_unreference_unlocked(radeon_crtc->cursor_bo);
+		drm_gem_object_unreference_unlocked(radeon_crtc->cursor_bo);
 	}
 
 	radeon_crtc->cursor_bo = obj;
@@ -360,7 +355,6 @@ unpin:
 void radeon_cursor_reset(struct drm_crtc *crtc)
 {
 	struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
-	int ret;
 
 	if (radeon_crtc->cursor_bo) {
 		radeon_lock_cursor(crtc, true);
@@ -368,12 +362,8 @@ void radeon_cursor_reset(struct drm_crtc
 		radeon_cursor_move_locked(crtc, radeon_crtc->cursor_x,
 					  radeon_crtc->cursor_y);
 
-		ret = radeon_set_cursor(crtc, radeon_crtc->cursor_bo);
-		if (ret)
-			DRM_ERROR("radeon_set_cursor returned %d, not showing "
-				  "cursor\n", ret);
-		else
-			radeon_show_cursor(crtc);
+		radeon_set_cursor(crtc);
+		radeon_show_cursor(crtc);
 
 		radeon_lock_cursor(crtc, false);
 	}
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/gpu/drm/radeon/radeon_device.c linux-libre-4.1.6-gnu/drivers/gpu/drm/radeon/radeon_device.c
--- linux-libre-4.1-gnu/drivers/gpu/drm/radeon/radeon_device.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/gpu/drm/radeon/radeon_device.c	2015-08-16 23:52:51.000000000 -0400
@@ -1572,11 +1572,21 @@ int radeon_suspend_kms(struct drm_device
 		drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF);
 	}
 
-	/* unpin the front buffers */
+	/* unpin the front buffers and cursors */
 	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
+		struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
 		struct radeon_framebuffer *rfb = to_radeon_framebuffer(crtc->primary->fb);
 		struct radeon_bo *robj;
 
+		if (radeon_crtc->cursor_bo) {
+			struct radeon_bo *robj = gem_to_radeon_bo(radeon_crtc->cursor_bo);
+			r = radeon_bo_reserve(robj, false);
+			if (r == 0) {
+				radeon_bo_unpin(robj);
+				radeon_bo_unreserve(robj);
+			}
+		}
+
 		if (rfb == NULL || rfb->obj == NULL) {
 			continue;
 		}
@@ -1639,6 +1649,7 @@ int radeon_resume_kms(struct drm_device
 {
 	struct drm_connector *connector;
 	struct radeon_device *rdev = dev->dev_private;
+	struct drm_crtc *crtc;
 	int r;
 
 	if (dev->switch_power_state == DRM_SWITCH_POWER_OFF)
@@ -1678,6 +1689,27 @@ int radeon_resume_kms(struct drm_device
 
 	radeon_restore_bios_scratch_regs(rdev);
 
+	/* pin cursors */
+	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
+		struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
+
+		if (radeon_crtc->cursor_bo) {
+			struct radeon_bo *robj = gem_to_radeon_bo(radeon_crtc->cursor_bo);
+			r = radeon_bo_reserve(robj, false);
+			if (r == 0) {
+				/* Only 27 bit offset for legacy cursor */
+				r = radeon_bo_pin_restricted(robj,
+							     RADEON_GEM_DOMAIN_VRAM,
+							     ASIC_IS_AVIVO(rdev) ?
+							     0 : 1 << 27,
+							     &radeon_crtc->cursor_addr);
+				if (r != 0)
+					DRM_ERROR("Failed to pin cursor BO (%d)\n", r);
+				radeon_bo_unreserve(robj);
+			}
+		}
+	}
+
 	/* init dig PHYs, disp eng pll */
 	if (rdev->is_atom_bios) {
 		radeon_atom_encoder_init(rdev);
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/gpu/drm/radeon/radeon_fb.c linux-libre-4.1.6-gnu/drivers/gpu/drm/radeon/radeon_fb.c
--- linux-libre-4.1-gnu/drivers/gpu/drm/radeon/radeon_fb.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/gpu/drm/radeon/radeon_fb.c	2015-08-16 23:52:51.000000000 -0400
@@ -257,7 +257,6 @@ 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-4.1-gnu/drivers/gpu/drm/radeon/radeon_gart.c linux-libre-4.1.6-gnu/drivers/gpu/drm/radeon/radeon_gart.c
--- linux-libre-4.1-gnu/drivers/gpu/drm/radeon/radeon_gart.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/gpu/drm/radeon/radeon_gart.c	2015-08-16 23:52:51.000000000 -0400
@@ -260,8 +260,10 @@ void radeon_gart_unbind(struct radeon_de
 			}
 		}
 	}
-	mb();
-	radeon_gart_tlb_flush(rdev);
+	if (rdev->gart.ptr) {
+		mb();
+		radeon_gart_tlb_flush(rdev);
+	}
 }
 
 /**
@@ -306,8 +308,10 @@ int radeon_gart_bind(struct radeon_devic
 			page_base += RADEON_GPU_PAGE_SIZE;
 		}
 	}
-	mb();
-	radeon_gart_tlb_flush(rdev);
+	if (rdev->gart.ptr) {
+		mb();
+		radeon_gart_tlb_flush(rdev);
+	}
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/gpu/drm/radeon/radeon_gem.c linux-libre-4.1.6-gnu/drivers/gpu/drm/radeon/radeon_gem.c
--- linux-libre-4.1-gnu/drivers/gpu/drm/radeon/radeon_gem.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/gpu/drm/radeon/radeon_gem.c	2015-08-16 23:52:51.000000000 -0400
@@ -36,6 +36,7 @@ void radeon_gem_object_free(struct drm_g
 	if (robj) {
 		if (robj->gem_base.import_attach)
 			drm_prime_gem_destroy(&robj->gem_base, robj->tbo.sg);
+		radeon_mn_unregister(robj);
 		radeon_bo_unref(&robj);
 	}
 }
@@ -471,6 +472,7 @@ int radeon_gem_wait_idle_ioctl(struct dr
 		r = ret;
 
 	/* Flush HDP cache via MMIO if necessary */
+	cur_placement = ACCESS_ONCE(robj->tbo.mem.mem_type);
 	if (rdev->asic->mmio_hdp_flush &&
 	    radeon_mem_type_to_domain(cur_placement) == RADEON_GEM_DOMAIN_VRAM)
 		robj->rdev->asic->mmio_hdp_flush(rdev);
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/gpu/drm/radeon/radeon_irq_kms.c linux-libre-4.1.6-gnu/drivers/gpu/drm/radeon/radeon_irq_kms.c
--- linux-libre-4.1-gnu/drivers/gpu/drm/radeon/radeon_irq_kms.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/gpu/drm/radeon/radeon_irq_kms.c	2015-08-16 23:52:51.000000000 -0400
@@ -79,10 +79,12 @@ static void radeon_hotplug_work_func(str
 	struct drm_mode_config *mode_config = &dev->mode_config;
 	struct drm_connector *connector;
 
+	mutex_lock(&mode_config->mutex);
 	if (mode_config->num_connector) {
 		list_for_each_entry(connector, &mode_config->connector_list, head)
 			radeon_connector_hotplug(connector);
 	}
+	mutex_unlock(&mode_config->mutex);
 	/* Just fire off a uevent and let userspace tell us what to do */
 	drm_helper_hpd_irq_event(dev);
 }
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/gpu/drm/radeon/radeon_mode.h linux-libre-4.1.6-gnu/drivers/gpu/drm/radeon/radeon_mode.h
--- linux-libre-4.1-gnu/drivers/gpu/drm/radeon/radeon_mode.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/gpu/drm/radeon/radeon_mode.h	2015-08-16 23:52:51.000000000 -0400
@@ -237,7 +237,6 @@ struct radeon_afmt {
 	int offset;
 	bool last_buffer_filled_status;
 	int id;
-	struct r600_audio_pin *pin;
 };
 
 struct radeon_mode_info {
@@ -343,7 +342,6 @@ struct radeon_crtc {
 	int max_cursor_width;
 	int max_cursor_height;
 	uint32_t legacy_display_base_addr;
-	uint32_t legacy_cursor_offset;
 	enum radeon_rmx_type rmx_type;
 	u8 h_border;
 	u8 v_border;
@@ -440,6 +438,7 @@ struct radeon_encoder_atom_dig {
 	uint8_t backlight_level;
 	int panel_mode;
 	struct radeon_afmt *afmt;
+	struct r600_audio_pin *pin;
 	int active_mst_links;
 };
 
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/gpu/drm/radeon/radeon_object.c linux-libre-4.1.6-gnu/drivers/gpu/drm/radeon/radeon_object.c
--- linux-libre-4.1-gnu/drivers/gpu/drm/radeon/radeon_object.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/gpu/drm/radeon/radeon_object.c	2015-08-16 23:52:51.000000000 -0400
@@ -75,7 +75,6 @@ static void radeon_ttm_bo_destroy(struct
 	bo = container_of(tbo, struct radeon_bo, tbo);
 
 	radeon_update_memory_usage(bo, bo->tbo.mem.mem_type, -1);
-	radeon_mn_unregister(bo);
 
 	mutex_lock(&bo->rdev->gem.mutex);
 	list_del_init(&bo->list);
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/gpu/drm/radeon/si.c linux-libre-4.1.6-gnu/drivers/gpu/drm/radeon/si.c
--- linux-libre-4.1-gnu/drivers/gpu/drm/radeon/si.c	2015-06-22 01:50:48.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/gpu/drm/radeon/si.c	2015-08-17 08:21:08.000000000 -0400
@@ -6393,23 +6393,27 @@ restart_ih:
 		case 1: /* D1 vblank/vline */
 			switch (src_data) {
 			case 0: /* D1 vblank */
-				if (rdev->irq.stat_regs.evergreen.disp_int & LB_D1_VBLANK_INTERRUPT) {
-					if (rdev->irq.crtc_vblank_int[0]) {
-						drm_handle_vblank(rdev->ddev, 0);
-						rdev->pm.vblank_sync = true;
-						wake_up(&rdev->irq.vblank_queue);
-					}
-					if (atomic_read(&rdev->irq.pflip[0]))
-						radeon_crtc_handle_vblank(rdev, 0);
-					rdev->irq.stat_regs.evergreen.disp_int &= ~LB_D1_VBLANK_INTERRUPT;
-					DRM_DEBUG("IH: D1 vblank\n");
+				if (!(rdev->irq.stat_regs.evergreen.disp_int & LB_D1_VBLANK_INTERRUPT))
+					DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+				if (rdev->irq.crtc_vblank_int[0]) {
+					drm_handle_vblank(rdev->ddev, 0);
+					rdev->pm.vblank_sync = true;
+					wake_up(&rdev->irq.vblank_queue);
 				}
+				if (atomic_read(&rdev->irq.pflip[0]))
+					radeon_crtc_handle_vblank(rdev, 0);
+				rdev->irq.stat_regs.evergreen.disp_int &= ~LB_D1_VBLANK_INTERRUPT;
+				DRM_DEBUG("IH: D1 vblank\n");
+
 				break;
 			case 1: /* D1 vline */
-				if (rdev->irq.stat_regs.evergreen.disp_int & LB_D1_VLINE_INTERRUPT) {
-					rdev->irq.stat_regs.evergreen.disp_int &= ~LB_D1_VLINE_INTERRUPT;
-					DRM_DEBUG("IH: D1 vline\n");
-				}
+				if (!(rdev->irq.stat_regs.evergreen.disp_int & LB_D1_VLINE_INTERRUPT))
+					DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+				rdev->irq.stat_regs.evergreen.disp_int &= ~LB_D1_VLINE_INTERRUPT;
+				DRM_DEBUG("IH: D1 vline\n");
+
 				break;
 			default:
 				DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
@@ -6419,23 +6423,27 @@ restart_ih:
 		case 2: /* D2 vblank/vline */
 			switch (src_data) {
 			case 0: /* D2 vblank */
-				if (rdev->irq.stat_regs.evergreen.disp_int_cont & LB_D2_VBLANK_INTERRUPT) {
-					if (rdev->irq.crtc_vblank_int[1]) {
-						drm_handle_vblank(rdev->ddev, 1);
-						rdev->pm.vblank_sync = true;
-						wake_up(&rdev->irq.vblank_queue);
-					}
-					if (atomic_read(&rdev->irq.pflip[1]))
-						radeon_crtc_handle_vblank(rdev, 1);
-					rdev->irq.stat_regs.evergreen.disp_int_cont &= ~LB_D2_VBLANK_INTERRUPT;
-					DRM_DEBUG("IH: D2 vblank\n");
+				if (!(rdev->irq.stat_regs.evergreen.disp_int_cont & LB_D2_VBLANK_INTERRUPT))
+					DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+				if (rdev->irq.crtc_vblank_int[1]) {
+					drm_handle_vblank(rdev->ddev, 1);
+					rdev->pm.vblank_sync = true;
+					wake_up(&rdev->irq.vblank_queue);
 				}
+				if (atomic_read(&rdev->irq.pflip[1]))
+					radeon_crtc_handle_vblank(rdev, 1);
+				rdev->irq.stat_regs.evergreen.disp_int_cont &= ~LB_D2_VBLANK_INTERRUPT;
+				DRM_DEBUG("IH: D2 vblank\n");
+
 				break;
 			case 1: /* D2 vline */
-				if (rdev->irq.stat_regs.evergreen.disp_int_cont & LB_D2_VLINE_INTERRUPT) {
-					rdev->irq.stat_regs.evergreen.disp_int_cont &= ~LB_D2_VLINE_INTERRUPT;
-					DRM_DEBUG("IH: D2 vline\n");
-				}
+				if (!(rdev->irq.stat_regs.evergreen.disp_int_cont & LB_D2_VLINE_INTERRUPT))
+					DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+				rdev->irq.stat_regs.evergreen.disp_int_cont &= ~LB_D2_VLINE_INTERRUPT;
+				DRM_DEBUG("IH: D2 vline\n");
+
 				break;
 			default:
 				DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
@@ -6445,23 +6453,27 @@ restart_ih:
 		case 3: /* D3 vblank/vline */
 			switch (src_data) {
 			case 0: /* D3 vblank */
-				if (rdev->irq.stat_regs.evergreen.disp_int_cont2 & LB_D3_VBLANK_INTERRUPT) {
-					if (rdev->irq.crtc_vblank_int[2]) {
-						drm_handle_vblank(rdev->ddev, 2);
-						rdev->pm.vblank_sync = true;
-						wake_up(&rdev->irq.vblank_queue);
-					}
-					if (atomic_read(&rdev->irq.pflip[2]))
-						radeon_crtc_handle_vblank(rdev, 2);
-					rdev->irq.stat_regs.evergreen.disp_int_cont2 &= ~LB_D3_VBLANK_INTERRUPT;
-					DRM_DEBUG("IH: D3 vblank\n");
+				if (!(rdev->irq.stat_regs.evergreen.disp_int_cont2 & LB_D3_VBLANK_INTERRUPT))
+					DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+				if (rdev->irq.crtc_vblank_int[2]) {
+					drm_handle_vblank(rdev->ddev, 2);
+					rdev->pm.vblank_sync = true;
+					wake_up(&rdev->irq.vblank_queue);
 				}
+				if (atomic_read(&rdev->irq.pflip[2]))
+					radeon_crtc_handle_vblank(rdev, 2);
+				rdev->irq.stat_regs.evergreen.disp_int_cont2 &= ~LB_D3_VBLANK_INTERRUPT;
+				DRM_DEBUG("IH: D3 vblank\n");
+
 				break;
 			case 1: /* D3 vline */
-				if (rdev->irq.stat_regs.evergreen.disp_int_cont2 & LB_D3_VLINE_INTERRUPT) {
-					rdev->irq.stat_regs.evergreen.disp_int_cont2 &= ~LB_D3_VLINE_INTERRUPT;
-					DRM_DEBUG("IH: D3 vline\n");
-				}
+				if (!(rdev->irq.stat_regs.evergreen.disp_int_cont2 & LB_D3_VLINE_INTERRUPT))
+					DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+				rdev->irq.stat_regs.evergreen.disp_int_cont2 &= ~LB_D3_VLINE_INTERRUPT;
+				DRM_DEBUG("IH: D3 vline\n");
+
 				break;
 			default:
 				DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
@@ -6471,23 +6483,27 @@ restart_ih:
 		case 4: /* D4 vblank/vline */
 			switch (src_data) {
 			case 0: /* D4 vblank */
-				if (rdev->irq.stat_regs.evergreen.disp_int_cont3 & LB_D4_VBLANK_INTERRUPT) {
-					if (rdev->irq.crtc_vblank_int[3]) {
-						drm_handle_vblank(rdev->ddev, 3);
-						rdev->pm.vblank_sync = true;
-						wake_up(&rdev->irq.vblank_queue);
-					}
-					if (atomic_read(&rdev->irq.pflip[3]))
-						radeon_crtc_handle_vblank(rdev, 3);
-					rdev->irq.stat_regs.evergreen.disp_int_cont3 &= ~LB_D4_VBLANK_INTERRUPT;
-					DRM_DEBUG("IH: D4 vblank\n");
+				if (!(rdev->irq.stat_regs.evergreen.disp_int_cont3 & LB_D4_VBLANK_INTERRUPT))
+					DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+				if (rdev->irq.crtc_vblank_int[3]) {
+					drm_handle_vblank(rdev->ddev, 3);
+					rdev->pm.vblank_sync = true;
+					wake_up(&rdev->irq.vblank_queue);
 				}
+				if (atomic_read(&rdev->irq.pflip[3]))
+					radeon_crtc_handle_vblank(rdev, 3);
+				rdev->irq.stat_regs.evergreen.disp_int_cont3 &= ~LB_D4_VBLANK_INTERRUPT;
+				DRM_DEBUG("IH: D4 vblank\n");
+
 				break;
 			case 1: /* D4 vline */
-				if (rdev->irq.stat_regs.evergreen.disp_int_cont3 & LB_D4_VLINE_INTERRUPT) {
-					rdev->irq.stat_regs.evergreen.disp_int_cont3 &= ~LB_D4_VLINE_INTERRUPT;
-					DRM_DEBUG("IH: D4 vline\n");
-				}
+				if (!(rdev->irq.stat_regs.evergreen.disp_int_cont3 & LB_D4_VLINE_INTERRUPT))
+					DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+				rdev->irq.stat_regs.evergreen.disp_int_cont3 &= ~LB_D4_VLINE_INTERRUPT;
+				DRM_DEBUG("IH: D4 vline\n");
+
 				break;
 			default:
 				DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
@@ -6497,23 +6513,27 @@ restart_ih:
 		case 5: /* D5 vblank/vline */
 			switch (src_data) {
 			case 0: /* D5 vblank */
-				if (rdev->irq.stat_regs.evergreen.disp_int_cont4 & LB_D5_VBLANK_INTERRUPT) {
-					if (rdev->irq.crtc_vblank_int[4]) {
-						drm_handle_vblank(rdev->ddev, 4);
-						rdev->pm.vblank_sync = true;
-						wake_up(&rdev->irq.vblank_queue);
-					}
-					if (atomic_read(&rdev->irq.pflip[4]))
-						radeon_crtc_handle_vblank(rdev, 4);
-					rdev->irq.stat_regs.evergreen.disp_int_cont4 &= ~LB_D5_VBLANK_INTERRUPT;
-					DRM_DEBUG("IH: D5 vblank\n");
+				if (!(rdev->irq.stat_regs.evergreen.disp_int_cont4 & LB_D5_VBLANK_INTERRUPT))
+					DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+				if (rdev->irq.crtc_vblank_int[4]) {
+					drm_handle_vblank(rdev->ddev, 4);
+					rdev->pm.vblank_sync = true;
+					wake_up(&rdev->irq.vblank_queue);
 				}
+				if (atomic_read(&rdev->irq.pflip[4]))
+					radeon_crtc_handle_vblank(rdev, 4);
+				rdev->irq.stat_regs.evergreen.disp_int_cont4 &= ~LB_D5_VBLANK_INTERRUPT;
+				DRM_DEBUG("IH: D5 vblank\n");
+
 				break;
 			case 1: /* D5 vline */
-				if (rdev->irq.stat_regs.evergreen.disp_int_cont4 & LB_D5_VLINE_INTERRUPT) {
-					rdev->irq.stat_regs.evergreen.disp_int_cont4 &= ~LB_D5_VLINE_INTERRUPT;
-					DRM_DEBUG("IH: D5 vline\n");
-				}
+				if (!(rdev->irq.stat_regs.evergreen.disp_int_cont4 & LB_D5_VLINE_INTERRUPT))
+					DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+				rdev->irq.stat_regs.evergreen.disp_int_cont4 &= ~LB_D5_VLINE_INTERRUPT;
+				DRM_DEBUG("IH: D5 vline\n");
+
 				break;
 			default:
 				DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
@@ -6523,23 +6543,27 @@ restart_ih:
 		case 6: /* D6 vblank/vline */
 			switch (src_data) {
 			case 0: /* D6 vblank */
-				if (rdev->irq.stat_regs.evergreen.disp_int_cont5 & LB_D6_VBLANK_INTERRUPT) {
-					if (rdev->irq.crtc_vblank_int[5]) {
-						drm_handle_vblank(rdev->ddev, 5);
-						rdev->pm.vblank_sync = true;
-						wake_up(&rdev->irq.vblank_queue);
-					}
-					if (atomic_read(&rdev->irq.pflip[5]))
-						radeon_crtc_handle_vblank(rdev, 5);
-					rdev->irq.stat_regs.evergreen.disp_int_cont5 &= ~LB_D6_VBLANK_INTERRUPT;
-					DRM_DEBUG("IH: D6 vblank\n");
+				if (!(rdev->irq.stat_regs.evergreen.disp_int_cont5 & LB_D6_VBLANK_INTERRUPT))
+					DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+				if (rdev->irq.crtc_vblank_int[5]) {
+					drm_handle_vblank(rdev->ddev, 5);
+					rdev->pm.vblank_sync = true;
+					wake_up(&rdev->irq.vblank_queue);
 				}
+				if (atomic_read(&rdev->irq.pflip[5]))
+					radeon_crtc_handle_vblank(rdev, 5);
+				rdev->irq.stat_regs.evergreen.disp_int_cont5 &= ~LB_D6_VBLANK_INTERRUPT;
+				DRM_DEBUG("IH: D6 vblank\n");
+
 				break;
 			case 1: /* D6 vline */
-				if (rdev->irq.stat_regs.evergreen.disp_int_cont5 & LB_D6_VLINE_INTERRUPT) {
-					rdev->irq.stat_regs.evergreen.disp_int_cont5 &= ~LB_D6_VLINE_INTERRUPT;
-					DRM_DEBUG("IH: D6 vline\n");
-				}
+				if (!(rdev->irq.stat_regs.evergreen.disp_int_cont5 & LB_D6_VLINE_INTERRUPT))
+					DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+				rdev->irq.stat_regs.evergreen.disp_int_cont5 &= ~LB_D6_VLINE_INTERRUPT;
+				DRM_DEBUG("IH: D6 vline\n");
+
 				break;
 			default:
 				DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
@@ -6559,88 +6583,112 @@ restart_ih:
 		case 42: /* HPD hotplug */
 			switch (src_data) {
 			case 0:
-				if (rdev->irq.stat_regs.evergreen.disp_int & DC_HPD1_INTERRUPT) {
-					rdev->irq.stat_regs.evergreen.disp_int &= ~DC_HPD1_INTERRUPT;
-					queue_hotplug = true;
-					DRM_DEBUG("IH: HPD1\n");
-				}
+				if (!(rdev->irq.stat_regs.evergreen.disp_int & DC_HPD1_INTERRUPT))
+					DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+				rdev->irq.stat_regs.evergreen.disp_int &= ~DC_HPD1_INTERRUPT;
+				queue_hotplug = true;
+				DRM_DEBUG("IH: HPD1\n");
+
 				break;
 			case 1:
-				if (rdev->irq.stat_regs.evergreen.disp_int_cont & DC_HPD2_INTERRUPT) {
-					rdev->irq.stat_regs.evergreen.disp_int_cont &= ~DC_HPD2_INTERRUPT;
-					queue_hotplug = true;
-					DRM_DEBUG("IH: HPD2\n");
-				}
+				if (!(rdev->irq.stat_regs.evergreen.disp_int_cont & DC_HPD2_INTERRUPT))
+					DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+				rdev->irq.stat_regs.evergreen.disp_int_cont &= ~DC_HPD2_INTERRUPT;
+				queue_hotplug = true;
+				DRM_DEBUG("IH: HPD2\n");
+
 				break;
 			case 2:
-				if (rdev->irq.stat_regs.evergreen.disp_int_cont2 & DC_HPD3_INTERRUPT) {
-					rdev->irq.stat_regs.evergreen.disp_int_cont2 &= ~DC_HPD3_INTERRUPT;
-					queue_hotplug = true;
-					DRM_DEBUG("IH: HPD3\n");
-				}
+				if (!(rdev->irq.stat_regs.evergreen.disp_int_cont2 & DC_HPD3_INTERRUPT))
+					DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+				rdev->irq.stat_regs.evergreen.disp_int_cont2 &= ~DC_HPD3_INTERRUPT;
+				queue_hotplug = true;
+				DRM_DEBUG("IH: HPD3\n");
+
 				break;
 			case 3:
-				if (rdev->irq.stat_regs.evergreen.disp_int_cont3 & DC_HPD4_INTERRUPT) {
-					rdev->irq.stat_regs.evergreen.disp_int_cont3 &= ~DC_HPD4_INTERRUPT;
-					queue_hotplug = true;
-					DRM_DEBUG("IH: HPD4\n");
-				}
+				if (!(rdev->irq.stat_regs.evergreen.disp_int_cont3 & DC_HPD4_INTERRUPT))
+					DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+				rdev->irq.stat_regs.evergreen.disp_int_cont3 &= ~DC_HPD4_INTERRUPT;
+				queue_hotplug = true;
+				DRM_DEBUG("IH: HPD4\n");
+
 				break;
 			case 4:
-				if (rdev->irq.stat_regs.evergreen.disp_int_cont4 & DC_HPD5_INTERRUPT) {
-					rdev->irq.stat_regs.evergreen.disp_int_cont4 &= ~DC_HPD5_INTERRUPT;
-					queue_hotplug = true;
-					DRM_DEBUG("IH: HPD5\n");
-				}
+				if (!(rdev->irq.stat_regs.evergreen.disp_int_cont4 & DC_HPD5_INTERRUPT))
+					DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+				rdev->irq.stat_regs.evergreen.disp_int_cont4 &= ~DC_HPD5_INTERRUPT;
+				queue_hotplug = true;
+				DRM_DEBUG("IH: HPD5\n");
+
 				break;
 			case 5:
-				if (rdev->irq.stat_regs.evergreen.disp_int_cont5 & DC_HPD6_INTERRUPT) {
-					rdev->irq.stat_regs.evergreen.disp_int_cont5 &= ~DC_HPD6_INTERRUPT;
-					queue_hotplug = true;
-					DRM_DEBUG("IH: HPD6\n");
-				}
+				if (!(rdev->irq.stat_regs.evergreen.disp_int_cont5 & DC_HPD6_INTERRUPT))
+					DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+				rdev->irq.stat_regs.evergreen.disp_int_cont5 &= ~DC_HPD6_INTERRUPT;
+				queue_hotplug = true;
+				DRM_DEBUG("IH: HPD6\n");
+
 				break;
 			case 6:
-				if (rdev->irq.stat_regs.evergreen.disp_int & DC_HPD1_RX_INTERRUPT) {
-					rdev->irq.stat_regs.evergreen.disp_int &= ~DC_HPD1_RX_INTERRUPT;
-					queue_dp = true;
-					DRM_DEBUG("IH: HPD_RX 1\n");
-				}
+				if (!(rdev->irq.stat_regs.evergreen.disp_int & DC_HPD1_RX_INTERRUPT))
+					DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+				rdev->irq.stat_regs.evergreen.disp_int &= ~DC_HPD1_RX_INTERRUPT;
+				queue_dp = true;
+				DRM_DEBUG("IH: HPD_RX 1\n");
+
 				break;
 			case 7:
-				if (rdev->irq.stat_regs.evergreen.disp_int_cont & DC_HPD2_RX_INTERRUPT) {
-					rdev->irq.stat_regs.evergreen.disp_int_cont &= ~DC_HPD2_RX_INTERRUPT;
-					queue_dp = true;
-					DRM_DEBUG("IH: HPD_RX 2\n");
-				}
+				if (!(rdev->irq.stat_regs.evergreen.disp_int_cont & DC_HPD2_RX_INTERRUPT))
+					DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+				rdev->irq.stat_regs.evergreen.disp_int_cont &= ~DC_HPD2_RX_INTERRUPT;
+				queue_dp = true;
+				DRM_DEBUG("IH: HPD_RX 2\n");
+
 				break;
 			case 8:
-				if (rdev->irq.stat_regs.evergreen.disp_int_cont2 & DC_HPD3_RX_INTERRUPT) {
-					rdev->irq.stat_regs.evergreen.disp_int_cont2 &= ~DC_HPD3_RX_INTERRUPT;
-					queue_dp = true;
-					DRM_DEBUG("IH: HPD_RX 3\n");
-				}
+				if (!(rdev->irq.stat_regs.evergreen.disp_int_cont2 & DC_HPD3_RX_INTERRUPT))
+					DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+				rdev->irq.stat_regs.evergreen.disp_int_cont2 &= ~DC_HPD3_RX_INTERRUPT;
+				queue_dp = true;
+				DRM_DEBUG("IH: HPD_RX 3\n");
+
 				break;
 			case 9:
-				if (rdev->irq.stat_regs.evergreen.disp_int_cont3 & DC_HPD4_RX_INTERRUPT) {
-					rdev->irq.stat_regs.evergreen.disp_int_cont3 &= ~DC_HPD4_RX_INTERRUPT;
-					queue_dp = true;
-					DRM_DEBUG("IH: HPD_RX 4\n");
-				}
+				if (!(rdev->irq.stat_regs.evergreen.disp_int_cont3 & DC_HPD4_RX_INTERRUPT))
+					DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+				rdev->irq.stat_regs.evergreen.disp_int_cont3 &= ~DC_HPD4_RX_INTERRUPT;
+				queue_dp = true;
+				DRM_DEBUG("IH: HPD_RX 4\n");
+
 				break;
 			case 10:
-				if (rdev->irq.stat_regs.evergreen.disp_int_cont4 & DC_HPD5_RX_INTERRUPT) {
-					rdev->irq.stat_regs.evergreen.disp_int_cont4 &= ~DC_HPD5_RX_INTERRUPT;
-					queue_dp = true;
-					DRM_DEBUG("IH: HPD_RX 5\n");
-				}
+				if (!(rdev->irq.stat_regs.evergreen.disp_int_cont4 & DC_HPD5_RX_INTERRUPT))
+					DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+				rdev->irq.stat_regs.evergreen.disp_int_cont4 &= ~DC_HPD5_RX_INTERRUPT;
+				queue_dp = true;
+				DRM_DEBUG("IH: HPD_RX 5\n");
+
 				break;
 			case 11:
-				if (rdev->irq.stat_regs.evergreen.disp_int_cont5 & DC_HPD6_RX_INTERRUPT) {
-					rdev->irq.stat_regs.evergreen.disp_int_cont5 &= ~DC_HPD6_RX_INTERRUPT;
-					queue_dp = true;
-					DRM_DEBUG("IH: HPD_RX 6\n");
-				}
+				if (!(rdev->irq.stat_regs.evergreen.disp_int_cont5 & DC_HPD6_RX_INTERRUPT))
+					DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
+
+				rdev->irq.stat_regs.evergreen.disp_int_cont5 &= ~DC_HPD6_RX_INTERRUPT;
+				queue_dp = true;
+				DRM_DEBUG("IH: HPD_RX 6\n");
+
 				break;
 			default:
 				DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/gpu/drm/radeon/si_dpm.c linux-libre-4.1.6-gnu/drivers/gpu/drm/radeon/si_dpm.c
--- linux-libre-4.1-gnu/drivers/gpu/drm/radeon/si_dpm.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/gpu/drm/radeon/si_dpm.c	2015-08-16 23:52:51.000000000 -0400
@@ -2925,6 +2925,7 @@ 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, 0x6810, 0x174b, 0xe271, 85000, 90000 },
 	{ 0, 0, 0, 0 },
 };
 
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/gpu/drm/rockchip/rockchip_drm_gem.c linux-libre-4.1.6-gnu/drivers/gpu/drm/rockchip/rockchip_drm_gem.c
--- linux-libre-4.1-gnu/drivers/gpu/drm/rockchip/rockchip_drm_gem.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/gpu/drm/rockchip/rockchip_drm_gem.c	2015-08-16 23:52:51.000000000 -0400
@@ -54,55 +54,56 @@ static void rockchip_gem_free_buf(struct
 		       &rk_obj->dma_attrs);
 }
 
-int rockchip_gem_mmap_buf(struct drm_gem_object *obj,
-			  struct vm_area_struct *vma)
+static int rockchip_drm_gem_object_mmap(struct drm_gem_object *obj,
+					struct vm_area_struct *vma)
+
 {
+	int ret;
 	struct rockchip_gem_object *rk_obj = to_rockchip_obj(obj);
 	struct drm_device *drm = obj->dev;
-	unsigned long vm_size;
 
-	vma->vm_flags |= VM_IO | VM_DONTEXPAND | VM_DONTDUMP;
-	vm_size = vma->vm_end - vma->vm_start;
-
-	if (vm_size > obj->size)
-		return -EINVAL;
+	/*
+	 * dma_alloc_attrs() allocated a struct page table for rk_obj, so clear
+	 * VM_PFNMAP flag that was set by drm_gem_mmap_obj()/drm_gem_mmap().
+	 */
+	vma->vm_flags &= ~VM_PFNMAP;
 
-	return dma_mmap_attrs(drm->dev, vma, rk_obj->kvaddr, rk_obj->dma_addr,
+	ret = dma_mmap_attrs(drm->dev, vma, rk_obj->kvaddr, rk_obj->dma_addr,
 			     obj->size, &rk_obj->dma_attrs);
+	if (ret)
+		drm_gem_vm_close(vma);
+
+	return ret;
 }
 
-/* drm driver mmap file operations */
-int rockchip_gem_mmap(struct file *filp, struct vm_area_struct *vma)
+int rockchip_gem_mmap_buf(struct drm_gem_object *obj,
+			  struct vm_area_struct *vma)
 {
-	struct drm_file *priv = filp->private_data;
-	struct drm_device *dev = priv->minor->dev;
-	struct drm_gem_object *obj;
-	struct drm_vma_offset_node *node;
+	struct drm_device *drm = obj->dev;
 	int ret;
 
-	if (drm_device_is_unplugged(dev))
-		return -ENODEV;
+	mutex_lock(&drm->struct_mutex);
+	ret = drm_gem_mmap_obj(obj, obj->size, vma);
+	mutex_unlock(&drm->struct_mutex);
+	if (ret)
+		return ret;
 
-	mutex_lock(&dev->struct_mutex);
+	return rockchip_drm_gem_object_mmap(obj, vma);
+}
 
-	node = drm_vma_offset_exact_lookup(dev->vma_offset_manager,
-					   vma->vm_pgoff,
-					   vma_pages(vma));
-	if (!node) {
-		mutex_unlock(&dev->struct_mutex);
-		DRM_ERROR("failed to find vma node.\n");
-		return -EINVAL;
-	} else if (!drm_vma_node_is_allowed(node, filp)) {
-		mutex_unlock(&dev->struct_mutex);
-		return -EACCES;
-	}
+/* drm driver mmap file operations */
+int rockchip_gem_mmap(struct file *filp, struct vm_area_struct *vma)
+{
+	struct drm_gem_object *obj;
+	int ret;
 
-	obj = container_of(node, struct drm_gem_object, vma_node);
-	ret = rockchip_gem_mmap_buf(obj, vma);
+	ret = drm_gem_mmap(filp, vma);
+	if (ret)
+		return ret;
 
-	mutex_unlock(&dev->struct_mutex);
+	obj = vma->vm_private_data;
 
-	return ret;
+	return rockchip_drm_gem_object_mmap(obj, vma);
 }
 
 struct rockchip_gem_object *
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/gpu/drm/tegra/dpaux.c linux-libre-4.1.6-gnu/drivers/gpu/drm/tegra/dpaux.c
--- linux-libre-4.1-gnu/drivers/gpu/drm/tegra/dpaux.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/gpu/drm/tegra/dpaux.c	2015-08-16 23:52:51.000000000 -0400
@@ -72,34 +72,32 @@ static inline void tegra_dpaux_writel(st
 static void tegra_dpaux_write_fifo(struct tegra_dpaux *dpaux, const u8 *buffer,
 				   size_t size)
 {
-	unsigned long offset = DPAUX_DP_AUXDATA_WRITE(0);
 	size_t i, j;
 
-	for (i = 0; i < size; i += 4) {
-		size_t num = min_t(size_t, size - i, 4);
+	for (i = 0; i < DIV_ROUND_UP(size, 4); i++) {
+		size_t num = min_t(size_t, size - i * 4, 4);
 		unsigned long value = 0;
 
 		for (j = 0; j < num; j++)
-			value |= buffer[i + j] << (j * 8);
+			value |= buffer[i * 4 + j] << (j * 8);
 
-		tegra_dpaux_writel(dpaux, value, offset++);
+		tegra_dpaux_writel(dpaux, value, DPAUX_DP_AUXDATA_WRITE(i));
 	}
 }
 
 static void tegra_dpaux_read_fifo(struct tegra_dpaux *dpaux, u8 *buffer,
 				  size_t size)
 {
-	unsigned long offset = DPAUX_DP_AUXDATA_READ(0);
 	size_t i, j;
 
-	for (i = 0; i < size; i += 4) {
-		size_t num = min_t(size_t, size - i, 4);
+	for (i = 0; i < DIV_ROUND_UP(size, 4); i++) {
+		size_t num = min_t(size_t, size - i * 4, 4);
 		unsigned long value;
 
-		value = tegra_dpaux_readl(dpaux, offset++);
+		value = tegra_dpaux_readl(dpaux, DPAUX_DP_AUXDATA_READ(i));
 
 		for (j = 0; j < num; j++)
-			buffer[i + j] = value >> (j * 8);
+			buffer[i * 4 + j] = value >> (j * 8);
 	}
 }
 
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/gpu/drm/vgem/vgem_drv.c linux-libre-4.1.6-gnu/drivers/gpu/drm/vgem/vgem_drv.c
--- linux-libre-4.1-gnu/drivers/gpu/drm/vgem/vgem_drv.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/gpu/drm/vgem/vgem_drv.c	2015-08-16 23:52:51.000000000 -0400
@@ -328,6 +328,8 @@ static int __init vgem_init(void)
 		goto out;
 	}
 
+	drm_dev_set_unique(vgem_device, "vgem");
+
 	ret  = drm_dev_register(vgem_device, 0);
 
 	if (ret)
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/hid/hid-cp2112.c linux-libre-4.1.6-gnu/drivers/hid/hid-cp2112.c
--- linux-libre-4.1-gnu/drivers/hid/hid-cp2112.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/hid/hid-cp2112.c	2015-08-16 23:52:51.000000000 -0400
@@ -356,6 +356,8 @@ static int cp2112_read(struct cp2112_dev
 	struct cp2112_force_read_report report;
 	int ret;
 
+	if (size > sizeof(dev->read_data))
+		size = sizeof(dev->read_data);
 	report.report = CP2112_DATA_READ_FORCE_SEND;
 	report.length = cpu_to_be16(size);
 
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/hwmon/mcp3021.c linux-libre-4.1.6-gnu/drivers/hwmon/mcp3021.c
--- linux-libre-4.1-gnu/drivers/hwmon/mcp3021.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/hwmon/mcp3021.c	2015-08-16 23:52:51.000000000 -0400
@@ -31,14 +31,11 @@
 /* output format */
 #define MCP3021_SAR_SHIFT	2
 #define MCP3021_SAR_MASK	0x3ff
-
 #define MCP3021_OUTPUT_RES	10	/* 10-bit resolution */
-#define MCP3021_OUTPUT_SCALE	4
 
 #define MCP3221_SAR_SHIFT	0
 #define MCP3221_SAR_MASK	0xfff
 #define MCP3221_OUTPUT_RES	12	/* 12-bit resolution */
-#define MCP3221_OUTPUT_SCALE	1
 
 enum chips {
 	mcp3021,
@@ -54,7 +51,6 @@ struct mcp3021_data {
 	u16 sar_shift;
 	u16 sar_mask;
 	u8 output_res;
-	u8 output_scale;
 };
 
 static int mcp3021_read16(struct i2c_client *client)
@@ -84,13 +80,7 @@ static int mcp3021_read16(struct i2c_cli
 
 static inline u16 volts_from_reg(struct mcp3021_data *data, u16 val)
 {
-	if (val == 0)
-		return 0;
-
-	val = val * data->output_scale - data->output_scale / 2;
-
-	return val * DIV_ROUND_CLOSEST(data->vdd,
-			(1 << data->output_res) * data->output_scale);
+	return DIV_ROUND_CLOSEST(data->vdd * val, 1 << data->output_res);
 }
 
 static ssize_t show_in_input(struct device *dev, struct device_attribute *attr,
@@ -132,14 +122,12 @@ static int mcp3021_probe(struct i2c_clie
 		data->sar_shift = MCP3021_SAR_SHIFT;
 		data->sar_mask = MCP3021_SAR_MASK;
 		data->output_res = MCP3021_OUTPUT_RES;
-		data->output_scale = MCP3021_OUTPUT_SCALE;
 		break;
 
 	case mcp3221:
 		data->sar_shift = MCP3221_SAR_SHIFT;
 		data->sar_mask = MCP3221_SAR_MASK;
 		data->output_res = MCP3221_OUTPUT_RES;
-		data->output_scale = MCP3221_OUTPUT_SCALE;
 		break;
 	}
 
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/hwmon/nct7802.c linux-libre-4.1.6-gnu/drivers/hwmon/nct7802.c
--- linux-libre-4.1-gnu/drivers/hwmon/nct7802.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/hwmon/nct7802.c	2015-08-16 23:52:51.000000000 -0400
@@ -195,7 +195,7 @@ abort:
 }
 
 static int nct7802_write_voltage(struct nct7802_data *data, int nr, int index,
-				 unsigned int voltage)
+				 unsigned long voltage)
 {
 	int shift = 8 - REG_VOLTAGE_LIMIT_MSB_SHIFT[index - 1][nr];
 	int err;
@@ -547,7 +547,7 @@ static umode_t nct7802_temp_is_visible(s
 	if (index >= 9 && index < 18 &&
 	    (reg & 0x0c) != 0x04 && (reg & 0x0c) != 0x08)	/* RD2 */
 		return 0;
-	if (index >= 18 && index < 27 && (reg & 0x30) != 0x10)	/* RD3 */
+	if (index >= 18 && index < 27 && (reg & 0x30) != 0x20)	/* RD3 */
 		return 0;
 	if (index >= 27 && index < 35)				/* local */
 		return attr->mode;
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/hwmon/nct7904.c linux-libre-4.1.6-gnu/drivers/hwmon/nct7904.c
--- linux-libre-4.1-gnu/drivers/hwmon/nct7904.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/hwmon/nct7904.c	2015-08-16 23:52:51.000000000 -0400
@@ -412,8 +412,9 @@ static ssize_t show_pwm(struct device *d
 	return sprintf(buf, "%d\n", val);
 }
 
-static ssize_t store_mode(struct device *dev, struct device_attribute *devattr,
-			  const char *buf, size_t count)
+static ssize_t store_enable(struct device *dev,
+			    struct device_attribute *devattr,
+			    const char *buf, size_t count)
 {
 	int index = to_sensor_dev_attr(devattr)->index;
 	struct nct7904_data *data = dev_get_drvdata(dev);
@@ -422,18 +423,18 @@ static ssize_t store_mode(struct device
 
 	if (kstrtoul(buf, 10, &val) < 0)
 		return -EINVAL;
-	if (val > 1 || (val && !data->fan_mode[index]))
+	if (val < 1 || val > 2 || (val == 2 && !data->fan_mode[index]))
 		return -EINVAL;
 
 	ret = nct7904_write_reg(data, BANK_3, FANCTL1_FMR_REG + index,
-				val ? data->fan_mode[index] : 0);
+				val == 2 ? data->fan_mode[index] : 0);
 
 	return ret ? ret : count;
 }
 
-/* Return 0 for manual mode or 1 for SmartFan mode */
-static ssize_t show_mode(struct device *dev,
-			 struct device_attribute *devattr, char *buf)
+/* Return 1 for manual mode or 2 for SmartFan mode */
+static ssize_t show_enable(struct device *dev,
+			   struct device_attribute *devattr, char *buf)
 {
 	int index = to_sensor_dev_attr(devattr)->index;
 	struct nct7904_data *data = dev_get_drvdata(dev);
@@ -443,36 +444,36 @@ static ssize_t show_mode(struct device *
 	if (val < 0)
 		return val;
 
-	return sprintf(buf, "%d\n", val ? 1 : 0);
+	return sprintf(buf, "%d\n", val ? 2 : 1);
 }
 
 /* 2 attributes per channel: pwm and mode */
-static SENSOR_DEVICE_ATTR(fan1_pwm, S_IRUGO | S_IWUSR,
+static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR,
 			show_pwm, store_pwm, 0);
-static SENSOR_DEVICE_ATTR(fan1_mode, S_IRUGO | S_IWUSR,
-			show_mode, store_mode, 0);
-static SENSOR_DEVICE_ATTR(fan2_pwm, S_IRUGO | S_IWUSR,
+static SENSOR_DEVICE_ATTR(pwm1_enable, S_IRUGO | S_IWUSR,
+			show_enable, store_enable, 0);
+static SENSOR_DEVICE_ATTR(pwm2, S_IRUGO | S_IWUSR,
 			show_pwm, store_pwm, 1);
-static SENSOR_DEVICE_ATTR(fan2_mode, S_IRUGO | S_IWUSR,
-			show_mode, store_mode, 1);
-static SENSOR_DEVICE_ATTR(fan3_pwm, S_IRUGO | S_IWUSR,
+static SENSOR_DEVICE_ATTR(pwm2_enable, S_IRUGO | S_IWUSR,
+			show_enable, store_enable, 1);
+static SENSOR_DEVICE_ATTR(pwm3, S_IRUGO | S_IWUSR,
 			show_pwm, store_pwm, 2);
-static SENSOR_DEVICE_ATTR(fan3_mode, S_IRUGO | S_IWUSR,
-			show_mode, store_mode, 2);
-static SENSOR_DEVICE_ATTR(fan4_pwm, S_IRUGO | S_IWUSR,
+static SENSOR_DEVICE_ATTR(pwm3_enable, S_IRUGO | S_IWUSR,
+			show_enable, store_enable, 2);
+static SENSOR_DEVICE_ATTR(pwm4, S_IRUGO | S_IWUSR,
 			show_pwm, store_pwm, 3);
-static SENSOR_DEVICE_ATTR(fan4_mode, S_IRUGO | S_IWUSR,
-			show_mode, store_mode, 3);
+static SENSOR_DEVICE_ATTR(pwm4_enable, S_IRUGO | S_IWUSR,
+			show_enable, store_enable, 3);
 
 static struct attribute *nct7904_fanctl_attrs[] = {
-	&sensor_dev_attr_fan1_pwm.dev_attr.attr,
-	&sensor_dev_attr_fan1_mode.dev_attr.attr,
-	&sensor_dev_attr_fan2_pwm.dev_attr.attr,
-	&sensor_dev_attr_fan2_mode.dev_attr.attr,
-	&sensor_dev_attr_fan3_pwm.dev_attr.attr,
-	&sensor_dev_attr_fan3_mode.dev_attr.attr,
-	&sensor_dev_attr_fan4_pwm.dev_attr.attr,
-	&sensor_dev_attr_fan4_mode.dev_attr.attr,
+	&sensor_dev_attr_pwm1.dev_attr.attr,
+	&sensor_dev_attr_pwm1_enable.dev_attr.attr,
+	&sensor_dev_attr_pwm2.dev_attr.attr,
+	&sensor_dev_attr_pwm2_enable.dev_attr.attr,
+	&sensor_dev_attr_pwm3.dev_attr.attr,
+	&sensor_dev_attr_pwm3_enable.dev_attr.attr,
+	&sensor_dev_attr_pwm4.dev_attr.attr,
+	&sensor_dev_attr_pwm4_enable.dev_attr.attr,
 	NULL
 };
 
@@ -574,6 +575,7 @@ static const struct i2c_device_id nct790
 	{"nct7904", 0},
 	{}
 };
+MODULE_DEVICE_TABLE(i2c, nct7904_id);
 
 static struct i2c_driver nct7904_driver = {
 	.class = I2C_CLASS_HWMON,
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/i2c/busses/i2c-at91.c linux-libre-4.1.6-gnu/drivers/i2c/busses/i2c-at91.c
--- linux-libre-4.1-gnu/drivers/i2c/busses/i2c-at91.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/i2c/busses/i2c-at91.c	2015-08-16 23:52:51.000000000 -0400
@@ -65,6 +65,9 @@
 #define	AT91_TWI_UNRE		0x0080	/* Underrun Error */
 #define	AT91_TWI_NACK		0x0100	/* Not Acknowledged */
 
+#define	AT91_TWI_INT_MASK \
+	(AT91_TWI_TXCOMP | AT91_TWI_RXRDY | AT91_TWI_TXRDY | AT91_TWI_NACK)
+
 #define	AT91_TWI_IER		0x0024	/* Interrupt Enable Register */
 #define	AT91_TWI_IDR		0x0028	/* Interrupt Disable Register */
 #define	AT91_TWI_IMR		0x002c	/* Interrupt Mask Register */
@@ -119,13 +122,12 @@ static void at91_twi_write(struct at91_t
 
 static void at91_disable_twi_interrupts(struct at91_twi_dev *dev)
 {
-	at91_twi_write(dev, AT91_TWI_IDR,
-		       AT91_TWI_TXCOMP | AT91_TWI_RXRDY | AT91_TWI_TXRDY);
+	at91_twi_write(dev, AT91_TWI_IDR, AT91_TWI_INT_MASK);
 }
 
 static void at91_twi_irq_save(struct at91_twi_dev *dev)
 {
-	dev->imr = at91_twi_read(dev, AT91_TWI_IMR) & 0x7;
+	dev->imr = at91_twi_read(dev, AT91_TWI_IMR) & AT91_TWI_INT_MASK;
 	at91_disable_twi_interrupts(dev);
 }
 
@@ -215,6 +217,14 @@ static void at91_twi_write_data_dma_call
 	dma_unmap_single(dev->dev, sg_dma_address(&dev->dma.sg),
 			 dev->buf_len, DMA_TO_DEVICE);
 
+	/*
+	 * When this callback is called, THR/TX FIFO is likely not to be empty
+	 * yet. So we have to wait for TXCOMP or NACK bits to be set into the
+	 * Status Register to be sure that the STOP bit has been sent and the
+	 * transfer is completed. The NACK interrupt has already been enabled,
+	 * we just have to enable TXCOMP one.
+	 */
+	at91_twi_write(dev, AT91_TWI_IER, AT91_TWI_TXCOMP);
 	at91_twi_write(dev, AT91_TWI_CR, AT91_TWI_STOP);
 }
 
@@ -309,7 +319,7 @@ static void at91_twi_read_data_dma_callb
 	/* The last two bytes have to be read without using dma */
 	dev->buf += dev->buf_len - 2;
 	dev->buf_len = 2;
-	at91_twi_write(dev, AT91_TWI_IER, AT91_TWI_RXRDY);
+	at91_twi_write(dev, AT91_TWI_IER, AT91_TWI_RXRDY | AT91_TWI_TXCOMP);
 }
 
 static void at91_twi_read_data_dma(struct at91_twi_dev *dev)
@@ -370,7 +380,7 @@ static irqreturn_t atmel_twi_interrupt(i
 	/* catch error flags */
 	dev->transfer_status |= status;
 
-	if (irqstatus & AT91_TWI_TXCOMP) {
+	if (irqstatus & (AT91_TWI_TXCOMP | AT91_TWI_NACK)) {
 		at91_disable_twi_interrupts(dev);
 		complete(&dev->cmd_complete);
 	}
@@ -384,6 +394,34 @@ static int at91_do_twi_transfer(struct a
 	unsigned long time_left;
 	bool has_unre_flag = dev->pdata->has_unre_flag;
 
+	/*
+	 * WARNING: the TXCOMP bit in the Status Register is NOT a clear on
+	 * read flag but shows the state of the transmission at the time the
+	 * Status Register is read. According to the programmer datasheet,
+	 * TXCOMP is set when both holding register and internal shifter are
+	 * empty and STOP condition has been sent.
+	 * Consequently, we should enable NACK interrupt rather than TXCOMP to
+	 * detect transmission failure.
+	 *
+	 * Besides, the TXCOMP bit is already set before the i2c transaction
+	 * has been started. For read transactions, this bit is cleared when
+	 * writing the START bit into the Control Register. So the
+	 * corresponding interrupt can safely be enabled just after.
+	 * However for write transactions managed by the CPU, we first write
+	 * into THR, so TXCOMP is cleared. Then we can safely enable TXCOMP
+	 * interrupt. If TXCOMP interrupt were enabled before writing into THR,
+	 * the interrupt handler would be called immediately and the i2c command
+	 * would be reported as completed.
+	 * Also when a write transaction is managed by the DMA controller,
+	 * enabling the TXCOMP interrupt in this function may lead to a race
+	 * condition since we don't know whether the TXCOMP interrupt is enabled
+	 * before or after the DMA has started to write into THR. So the TXCOMP
+	 * interrupt is enabled later by at91_twi_write_data_dma_callback().
+	 * Immediately after in that DMA callback, we still need to send the
+	 * STOP condition manually writing the corresponding bit into the
+	 * Control Register.
+	 */
+
 	dev_dbg(dev->dev, "transfer: %s %d bytes.\n",
 		(dev->msg->flags & I2C_M_RD) ? "read" : "write", dev->buf_len);
 
@@ -414,26 +452,24 @@ static int at91_do_twi_transfer(struct a
 		 * seems to be the best solution.
 		 */
 		if (dev->use_dma && (dev->buf_len > AT91_I2C_DMA_THRESHOLD)) {
+			at91_twi_write(dev, AT91_TWI_IER, AT91_TWI_NACK);
 			at91_twi_read_data_dma(dev);
-			/*
-			 * It is important to enable TXCOMP irq here because
-			 * doing it only when transferring the last two bytes
-			 * will mask NACK errors since TXCOMP is set when a
-			 * NACK occurs.
-			 */
-			at91_twi_write(dev, AT91_TWI_IER,
-			       AT91_TWI_TXCOMP);
-		} else
+		} else {
 			at91_twi_write(dev, AT91_TWI_IER,
-			       AT91_TWI_TXCOMP | AT91_TWI_RXRDY);
+				       AT91_TWI_TXCOMP |
+				       AT91_TWI_NACK |
+				       AT91_TWI_RXRDY);
+		}
 	} else {
 		if (dev->use_dma && (dev->buf_len > AT91_I2C_DMA_THRESHOLD)) {
+			at91_twi_write(dev, AT91_TWI_IER, AT91_TWI_NACK);
 			at91_twi_write_data_dma(dev);
-			at91_twi_write(dev, AT91_TWI_IER, AT91_TWI_TXCOMP);
 		} else {
 			at91_twi_write_next_byte(dev);
 			at91_twi_write(dev, AT91_TWI_IER,
-				AT91_TWI_TXCOMP | AT91_TWI_TXRDY);
+				       AT91_TWI_TXCOMP |
+				       AT91_TWI_NACK |
+				       AT91_TWI_TXRDY);
 		}
 	}
 
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/i2c/i2c-mux.c linux-libre-4.1.6-gnu/drivers/i2c/i2c-mux.c
--- linux-libre-4.1-gnu/drivers/i2c/i2c-mux.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/i2c/i2c-mux.c	2015-08-16 23:52:51.000000000 -0400
@@ -51,7 +51,7 @@ static int i2c_mux_master_xfer(struct i2
 
 	ret = priv->select(parent, priv->mux_priv, priv->chan_id);
 	if (ret >= 0)
-		ret = parent->algo->master_xfer(parent, msgs, num);
+		ret = __i2c_transfer(parent, msgs, num);
 	if (priv->deselect)
 		priv->deselect(parent, priv->mux_priv, priv->chan_id);
 
@@ -144,6 +144,7 @@ struct i2c_adapter *i2c_add_mux_adapter(
 	priv->adap.dev.parent = &parent->dev;
 	priv->adap.retries = parent->retries;
 	priv->adap.timeout = parent->timeout;
+	priv->adap.quirks = parent->quirks;
 
 	/* Sanity check on class */
 	if (i2c_mux_parent_classes(parent) & class)
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/i2c/muxes/i2c-mux-pca9541.c linux-libre-4.1.6-gnu/drivers/i2c/muxes/i2c-mux-pca9541.c
--- linux-libre-4.1-gnu/drivers/i2c/muxes/i2c-mux-pca9541.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/i2c/muxes/i2c-mux-pca9541.c	2015-08-16 23:52:51.000000000 -0400
@@ -104,7 +104,7 @@ static int pca9541_reg_write(struct i2c_
 		buf[0] = command;
 		buf[1] = val;
 		msg.buf = buf;
-		ret = adap->algo->master_xfer(adap, &msg, 1);
+		ret = __i2c_transfer(adap, &msg, 1);
 	} else {
 		union i2c_smbus_data data;
 
@@ -144,7 +144,7 @@ static int pca9541_reg_read(struct i2c_c
 				.buf = &val
 			}
 		};
-		ret = adap->algo->master_xfer(adap, msg, 2);
+		ret = __i2c_transfer(adap, msg, 2);
 		if (ret == 2)
 			ret = val;
 		else if (ret >= 0)
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/i2c/muxes/i2c-mux-pca954x.c linux-libre-4.1.6-gnu/drivers/i2c/muxes/i2c-mux-pca954x.c
--- linux-libre-4.1-gnu/drivers/i2c/muxes/i2c-mux-pca954x.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/i2c/muxes/i2c-mux-pca954x.c	2015-08-16 23:52:51.000000000 -0400
@@ -134,7 +134,7 @@ static int pca954x_reg_write(struct i2c_
 		msg.len = 1;
 		buf[0] = val;
 		msg.buf = buf;
-		ret = adap->algo->master_xfer(adap, &msg, 1);
+		ret = __i2c_transfer(adap, &msg, 1);
 	} else {
 		union i2c_smbus_data data;
 		ret = adap->algo->smbus_xfer(adap, client->addr,
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/iio/accel/bmc150-accel.c linux-libre-4.1.6-gnu/drivers/iio/accel/bmc150-accel.c
--- linux-libre-4.1-gnu/drivers/iio/accel/bmc150-accel.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/iio/accel/bmc150-accel.c	2015-08-16 23:52:51.000000000 -0400
@@ -1465,7 +1465,7 @@ static void bmc150_accel_unregister_trig
 {
 	int i;
 
-	for (i = from; i >= 0; i++) {
+	for (i = from; i >= 0; i--) {
 		if (data->triggers[i].indio_trig) {
 			iio_trigger_unregister(data->triggers[i].indio_trig);
 			data->triggers[i].indio_trig = NULL;
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/iio/accel/kxcjk-1013.c linux-libre-4.1.6-gnu/drivers/iio/accel/kxcjk-1013.c
--- linux-libre-4.1-gnu/drivers/iio/accel/kxcjk-1013.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/iio/accel/kxcjk-1013.c	2015-08-16 23:52:51.000000000 -0400
@@ -1418,6 +1418,7 @@ static const struct dev_pm_ops kxcjk1013
 static const struct acpi_device_id kx_acpi_match[] = {
 	{"KXCJ1013", KXCJK1013},
 	{"KXCJ1008", KXCJ91008},
+	{"KXCJ9000", KXCJ91008},
 	{"KXTJ1009", KXTJ21009},
 	{"SMO8500",  KXCJ91008},
 	{ },
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/iio/adc/at91_adc.c linux-libre-4.1.6-gnu/drivers/iio/adc/at91_adc.c
--- linux-libre-4.1-gnu/drivers/iio/adc/at91_adc.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/iio/adc/at91_adc.c	2015-08-16 23:52:51.000000000 -0400
@@ -182,7 +182,7 @@ struct at91_adc_caps {
 	u8	ts_pen_detect_sensitivity;
 
 	/* startup time calculate function */
-	u32 (*calc_startup_ticks)(u8 startup_time, u32 adc_clk_khz);
+	u32 (*calc_startup_ticks)(u32 startup_time, u32 adc_clk_khz);
 
 	u8	num_channels;
 	struct at91_adc_reg_desc registers;
@@ -201,7 +201,7 @@ struct at91_adc_state {
 	u8			num_channels;
 	void __iomem		*reg_base;
 	struct at91_adc_reg_desc *registers;
-	u8			startup_time;
+	u32			startup_time;
 	u8			sample_hold_time;
 	bool			sleep_mode;
 	struct iio_trigger	**trig;
@@ -779,7 +779,7 @@ ret:
 	return ret;
 }
 
-static u32 calc_startup_ticks_9260(u8 startup_time, u32 adc_clk_khz)
+static u32 calc_startup_ticks_9260(u32 startup_time, u32 adc_clk_khz)
 {
 	/*
 	 * Number of ticks needed to cover the startup time of the ADC
@@ -790,7 +790,7 @@ static u32 calc_startup_ticks_9260(u8 st
 	return round_up((startup_time * adc_clk_khz / 1000) - 1, 8) / 8;
 }
 
-static u32 calc_startup_ticks_9x5(u8 startup_time, u32 adc_clk_khz)
+static u32 calc_startup_ticks_9x5(u32 startup_time, u32 adc_clk_khz)
 {
 	/*
 	 * For sama5d3x and at91sam9x5, the formula changes to:
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/iio/adc/Kconfig linux-libre-4.1.6-gnu/drivers/iio/adc/Kconfig
--- linux-libre-4.1-gnu/drivers/iio/adc/Kconfig	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/iio/adc/Kconfig	2015-08-16 23:52:51.000000000 -0400
@@ -146,8 +146,7 @@ config DA9150_GPADC
 
 config CC10001_ADC
 	tristate "Cosmic Circuits 10001 ADC driver"
-	depends on HAVE_CLK || REGULATOR
-	depends on HAS_IOMEM
+	depends on HAS_IOMEM && HAVE_CLK && REGULATOR
 	select IIO_BUFFER
 	select IIO_TRIGGERED_BUFFER
 	help
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/iio/adc/rockchip_saradc.c linux-libre-4.1.6-gnu/drivers/iio/adc/rockchip_saradc.c
--- linux-libre-4.1-gnu/drivers/iio/adc/rockchip_saradc.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/iio/adc/rockchip_saradc.c	2015-08-16 23:52:51.000000000 -0400
@@ -349,3 +349,7 @@ static struct platform_driver rockchip_s
 };
 
 module_platform_driver(rockchip_saradc_driver);
+
+MODULE_AUTHOR("Heiko Stuebner <heiko@sntech.de>");
+MODULE_DESCRIPTION("Rockchip SARADC driver");
+MODULE_LICENSE("GPL v2");
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/iio/adc/twl4030-madc.c linux-libre-4.1.6-gnu/drivers/iio/adc/twl4030-madc.c
--- linux-libre-4.1-gnu/drivers/iio/adc/twl4030-madc.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/iio/adc/twl4030-madc.c	2015-08-16 23:52:51.000000000 -0400
@@ -835,7 +835,8 @@ static int twl4030_madc_probe(struct pla
 	irq = platform_get_irq(pdev, 0);
 	ret = devm_request_threaded_irq(&pdev->dev, irq, NULL,
 				   twl4030_madc_threaded_irq_handler,
-				   IRQF_TRIGGER_RISING, "twl4030_madc", madc);
+				   IRQF_TRIGGER_RISING | IRQF_ONESHOT,
+				   "twl4030_madc", madc);
 	if (ret) {
 		dev_err(&pdev->dev, "could not request irq\n");
 		goto err_i2c;
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/iio/common/hid-sensors/hid-sensor-trigger.c linux-libre-4.1.6-gnu/drivers/iio/common/hid-sensors/hid-sensor-trigger.c
--- linux-libre-4.1-gnu/drivers/iio/common/hid-sensors/hid-sensor-trigger.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/iio/common/hid-sensors/hid-sensor-trigger.c	2015-08-16 23:52:51.000000000 -0400
@@ -36,6 +36,8 @@ 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;
 
@@ -52,8 +54,12 @@ static int _hid_sensor_power_state(struc
 
 		poll_value = hid_sensor_read_poll_value(st);
 	} else {
-		if (!atomic_dec_and_test(&st->data_ready))
+		int val;
+
+		val = atomic_dec_if_positive(&st->data_ready);
+		if (val < 0)
 			return 0;
+
 		sensor_hub_device_close(st->hsdev);
 		state_val = hid_sensor_get_usage_index(st->hsdev,
 			st->power_state.report_id,
@@ -92,9 +98,11 @@ EXPORT_SYMBOL(hid_sensor_power_state);
 
 int hid_sensor_power_state(struct hid_sensor_common *st, bool state)
 {
+
 #ifdef CONFIG_PM
 	int ret;
 
+	atomic_set(&st->user_requested_state, state);
 	if (state)
 		ret = pm_runtime_get_sync(&st->pdev->dev);
 	else {
@@ -109,6 +117,7 @@ int hid_sensor_power_state(struct hid_se
 
  	return 0;
 #else
+	atomic_set(&st->user_requested_state, state);
 	return _hid_sensor_power_state(st, state);
 #endif
 }
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/iio/dac/ad5624r_spi.c linux-libre-4.1.6-gnu/drivers/iio/dac/ad5624r_spi.c
--- linux-libre-4.1-gnu/drivers/iio/dac/ad5624r_spi.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/iio/dac/ad5624r_spi.c	2015-08-16 23:52:51.000000000 -0400
@@ -22,7 +22,7 @@
 #include "ad5624r.h"
 
 static int ad5624r_spi_write(struct spi_device *spi,
-			     u8 cmd, u8 addr, u16 val, u8 len)
+			     u8 cmd, u8 addr, u16 val, u8 shift)
 {
 	u32 data;
 	u8 msg[3];
@@ -35,7 +35,7 @@ static int ad5624r_spi_write(struct spi_
 	 * 14-, 12-bit input code followed by 0, 2, or 4 don't care bits,
 	 * for the AD5664R, AD5644R, and AD5624R, respectively.
 	 */
-	data = (0 << 22) | (cmd << 19) | (addr << 16) | (val << (16 - len));
+	data = (0 << 22) | (cmd << 19) | (addr << 16) | (val << shift);
 	msg[0] = data >> 16;
 	msg[1] = data >> 8;
 	msg[2] = data;
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c linux-libre-4.1.6-gnu/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c
--- linux-libre-4.1-gnu/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c	2015-08-16 23:52:51.000000000 -0400
@@ -431,6 +431,23 @@ static int inv_mpu6050_write_gyro_scale(
 	return -EINVAL;
 }
 
+static int inv_write_raw_get_fmt(struct iio_dev *indio_dev,
+				 struct iio_chan_spec const *chan, long mask)
+{
+	switch (mask) {
+	case IIO_CHAN_INFO_SCALE:
+		switch (chan->type) {
+		case IIO_ANGL_VEL:
+			return IIO_VAL_INT_PLUS_NANO;
+		default:
+			return IIO_VAL_INT_PLUS_MICRO;
+		}
+	default:
+		return IIO_VAL_INT_PLUS_MICRO;
+	}
+
+	return -EINVAL;
+}
 static int inv_mpu6050_write_accel_scale(struct inv_mpu6050_state *st, int val)
 {
 	int result, i;
@@ -696,6 +713,7 @@ static const struct iio_info mpu_info =
 	.driver_module = THIS_MODULE,
 	.read_raw = &inv_mpu6050_read_raw,
 	.write_raw = &inv_mpu6050_write_raw,
+	.write_raw_get_fmt = &inv_write_raw_get_fmt,
 	.attrs = &inv_attribute_group,
 	.validate_trigger = inv_mpu6050_validate_trigger,
 };
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/iio/light/cm3323.c linux-libre-4.1.6-gnu/drivers/iio/light/cm3323.c
--- linux-libre-4.1-gnu/drivers/iio/light/cm3323.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/iio/light/cm3323.c	2015-08-16 23:52:51.000000000 -0400
@@ -123,7 +123,7 @@ static int cm3323_set_it_bits(struct cm3
 	for (i = 0; i < ARRAY_SIZE(cm3323_int_time); i++) {
 		if (val == cm3323_int_time[i].val &&
 		    val2 == cm3323_int_time[i].val2) {
-			reg_conf = data->reg_conf;
+			reg_conf = data->reg_conf & ~CM3323_CONF_IT_MASK;
 			reg_conf |= i << CM3323_CONF_IT_SHIFT;
 
 			ret = i2c_smbus_write_word_data(data->client,
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/iio/light/tcs3414.c linux-libre-4.1.6-gnu/drivers/iio/light/tcs3414.c
--- linux-libre-4.1-gnu/drivers/iio/light/tcs3414.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/iio/light/tcs3414.c	2015-08-16 23:52:51.000000000 -0400
@@ -185,7 +185,7 @@ static int tcs3414_write_raw(struct iio_
 		if (val != 0)
 			return -EINVAL;
 		for (i = 0; i < ARRAY_SIZE(tcs3414_times); i++) {
-			if (val == tcs3414_times[i] * 1000) {
+			if (val2 == tcs3414_times[i] * 1000) {
 				data->timing &= ~TCS3414_INTEG_MASK;
 				data->timing |= i;
 				return i2c_smbus_write_byte_data(
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/iio/proximity/sx9500.c linux-libre-4.1.6-gnu/drivers/iio/proximity/sx9500.c
--- linux-libre-4.1-gnu/drivers/iio/proximity/sx9500.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/iio/proximity/sx9500.c	2015-08-16 23:52:51.000000000 -0400
@@ -206,7 +206,7 @@ static int sx9500_read_proximity(struct
 	if (ret < 0)
 		return ret;
 
-	*val = 32767 - (s16)be16_to_cpu(regval);
+	*val = be16_to_cpu(regval);
 
 	return IIO_VAL_INT;
 }
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/iio/temperature/tmp006.c linux-libre-4.1.6-gnu/drivers/iio/temperature/tmp006.c
--- linux-libre-4.1-gnu/drivers/iio/temperature/tmp006.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/iio/temperature/tmp006.c	2015-08-16 23:52:51.000000000 -0400
@@ -132,6 +132,9 @@ static int tmp006_write_raw(struct iio_d
 	struct tmp006_data *data = iio_priv(indio_dev);
 	int i;
 
+	if (mask != IIO_CHAN_INFO_SAMP_FREQ)
+		return -EINVAL;
+
 	for (i = 0; i < ARRAY_SIZE(tmp006_freqs); i++)
 		if ((val == tmp006_freqs[i][0]) &&
 		    (val2 == tmp006_freqs[i][1])) {
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c linux-libre-4.1.6-gnu/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
--- linux-libre-4.1-gnu/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c	2015-08-16 23:52:51.000000000 -0400
@@ -679,7 +679,6 @@ err:
 		ocrdma_release_ucontext_pd(uctx);
 	} else {
 		status = _ocrdma_dealloc_pd(dev, pd);
-		kfree(pd);
 	}
 exit:
 	return ERR_PTR(status);
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/infiniband/ulp/ipoib/ipoib_verbs.c linux-libre-4.1.6-gnu/drivers/infiniband/ulp/ipoib/ipoib_verbs.c
--- linux-libre-4.1-gnu/drivers/infiniband/ulp/ipoib/ipoib_verbs.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/infiniband/ulp/ipoib/ipoib_verbs.c	2015-08-16 23:52:51.000000000 -0400
@@ -176,7 +176,8 @@ int ipoib_transport_dev_init(struct net_
 		else
 			size += ipoib_recvq_size * ipoib_max_conn_qp;
 	} else
-		goto out_free_wq;
+		if (ret != -ENOSYS)
+			goto out_free_wq;
 
 	priv->recv_cq = ib_create_cq(priv->ca, ipoib_ib_completion, NULL, dev, size, 0);
 	if (IS_ERR(priv->recv_cq)) {
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/infiniband/ulp/srp/ib_srp.c linux-libre-4.1.6-gnu/drivers/infiniband/ulp/srp/ib_srp.c
--- linux-libre-4.1-gnu/drivers/infiniband/ulp/srp/ib_srp.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/infiniband/ulp/srp/ib_srp.c	2015-08-16 23:52:51.000000000 -0400
@@ -465,14 +465,13 @@ static struct srp_fr_pool *srp_alloc_fr_
  */
 static void srp_destroy_qp(struct srp_rdma_ch *ch)
 {
-	struct srp_target_port *target = ch->target;
 	static struct ib_qp_attr attr = { .qp_state = IB_QPS_ERR };
 	static struct ib_recv_wr wr = { .wr_id = SRP_LAST_WR_ID };
 	struct ib_recv_wr *bad_wr;
 	int ret;
 
 	/* Destroying a QP and reusing ch->done is only safe if not connected */
-	WARN_ON_ONCE(target->connected);
+	WARN_ON_ONCE(ch->connected);
 
 	ret = ib_modify_qp(ch->qp, &attr, IB_QP_STATE);
 	WARN_ONCE(ret, "ib_cm_init_qp_attr() returned %d\n", ret);
@@ -811,35 +810,19 @@ static bool srp_queue_remove_work(struct
 	return changed;
 }
 
-static bool srp_change_conn_state(struct srp_target_port *target,
-				  bool connected)
-{
-	bool changed = false;
-
-	spin_lock_irq(&target->lock);
-	if (target->connected != connected) {
-		target->connected = connected;
-		changed = true;
-	}
-	spin_unlock_irq(&target->lock);
-
-	return changed;
-}
-
 static void srp_disconnect_target(struct srp_target_port *target)
 {
 	struct srp_rdma_ch *ch;
 	int i;
 
-	if (srp_change_conn_state(target, false)) {
-		/* XXX should send SRP_I_LOGOUT request */
+	/* XXX should send SRP_I_LOGOUT request */
 
-		for (i = 0; i < target->ch_count; i++) {
-			ch = &target->ch[i];
-			if (ch->cm_id && ib_send_cm_dreq(ch->cm_id, NULL, 0)) {
-				shost_printk(KERN_DEBUG, target->scsi_host,
-					     PFX "Sending CM DREQ failed\n");
-			}
+	for (i = 0; i < target->ch_count; i++) {
+		ch = &target->ch[i];
+		ch->connected = false;
+		if (ch->cm_id && ib_send_cm_dreq(ch->cm_id, NULL, 0)) {
+			shost_printk(KERN_DEBUG, target->scsi_host,
+				     PFX "Sending CM DREQ failed\n");
 		}
 	}
 }
@@ -986,14 +969,26 @@ static void srp_rport_delete(struct srp_
 	srp_queue_remove_work(target);
 }
 
+/**
+ * srp_connected_ch() - number of connected channels
+ * @target: SRP target port.
+ */
+static int srp_connected_ch(struct srp_target_port *target)
+{
+	int i, c = 0;
+
+	for (i = 0; i < target->ch_count; i++)
+		c += target->ch[i].connected;
+
+	return c;
+}
+
 static int srp_connect_ch(struct srp_rdma_ch *ch, bool multich)
 {
 	struct srp_target_port *target = ch->target;
 	int ret;
 
-	WARN_ON_ONCE(!multich && target->connected);
-
-	target->qp_in_error = false;
+	WARN_ON_ONCE(!multich && srp_connected_ch(target) > 0);
 
 	ret = srp_lookup_path(ch);
 	if (ret)
@@ -1016,7 +1011,7 @@ static int srp_connect_ch(struct srp_rdm
 		 */
 		switch (ch->status) {
 		case 0:
-			srp_change_conn_state(target, true);
+			ch->connected = true;
 			return 0;
 
 		case SRP_PORT_REDIRECT:
@@ -1243,13 +1238,13 @@ static int srp_rport_reconnect(struct sr
 		for (j = 0; j < target->queue_size; ++j)
 			list_add(&ch->tx_ring[j]->list, &ch->free_tx);
 	}
+
+	target->qp_in_error = false;
+
 	for (i = 0; i < target->ch_count; i++) {
 		ch = &target->ch[i];
-		if (ret || !ch->target) {
-			if (i > 1)
-				ret = 0;
+		if (ret || !ch->target)
 			break;
-		}
 		ret = srp_connect_ch(ch, multich);
 		multich = true;
 	}
@@ -1929,7 +1924,7 @@ static void srp_handle_qp_err(u64 wr_id,
 		return;
 	}
 
-	if (target->connected && !target->qp_in_error) {
+	if (ch->connected && !target->qp_in_error) {
 		if (wr_id & LOCAL_INV_WR_ID_MASK) {
 			shost_printk(KERN_ERR, target->scsi_host, PFX
 				     "LOCAL_INV failed with status %d\n",
@@ -2367,7 +2362,7 @@ static int srp_cm_handler(struct ib_cm_i
 	case IB_CM_DREQ_RECEIVED:
 		shost_printk(KERN_WARNING, target->scsi_host,
 			     PFX "DREQ received - connection closed\n");
-		srp_change_conn_state(target, false);
+		ch->connected = false;
 		if (ib_send_cm_drep(cm_id, NULL, 0))
 			shost_printk(KERN_ERR, target->scsi_host,
 				     PFX "Sending CM DREP failed\n");
@@ -2423,7 +2418,7 @@ static int srp_send_tsk_mgmt(struct srp_
 	struct srp_iu *iu;
 	struct srp_tsk_mgmt *tsk_mgmt;
 
-	if (!target->connected || target->qp_in_error)
+	if (!ch->connected || target->qp_in_error)
 		return -1;
 
 	init_completion(&ch->tsk_mgmt_done);
@@ -2797,7 +2792,8 @@ static int srp_add_target(struct srp_hos
 	scsi_scan_target(&target->scsi_host->shost_gendev,
 			 0, target->scsi_id, SCAN_WILD_CARD, 0);
 
-	if (!target->connected || target->qp_in_error) {
+	if (srp_connected_ch(target) < target->ch_count ||
+	    target->qp_in_error) {
 		shost_printk(KERN_INFO, target->scsi_host,
 			     PFX "SCSI scan failed - removing SCSI host\n");
 		srp_queue_remove_work(target);
@@ -3172,11 +3168,11 @@ static ssize_t srp_create_target(struct
 
 	ret = srp_parse_options(buf, target);
 	if (ret)
-		goto err;
+		goto out;
 
 	ret = scsi_init_shared_tag_map(target_host, target_host->can_queue);
 	if (ret)
-		goto err;
+		goto out;
 
 	target->req_ring_size = target->queue_size - SRP_TSK_MGMT_SQ_SIZE;
 
@@ -3187,7 +3183,7 @@ static ssize_t srp_create_target(struct
 			     be64_to_cpu(target->ioc_guid),
 			     be64_to_cpu(target->initiator_ext));
 		ret = -EEXIST;
-		goto err;
+		goto out;
 	}
 
 	if (!srp_dev->has_fmr && !srp_dev->has_fr && !target->allow_ext_sg &&
@@ -3208,7 +3204,7 @@ static ssize_t srp_create_target(struct
 	spin_lock_init(&target->lock);
 	ret = ib_query_gid(ibdev, host->port, 0, &target->sgid);
 	if (ret)
-		goto err;
+		goto out;
 
 	ret = -ENOMEM;
 	target->ch_count = max_t(unsigned, num_online_nodes(),
@@ -3219,7 +3215,7 @@ static ssize_t srp_create_target(struct
 	target->ch = kcalloc(target->ch_count, sizeof(*target->ch),
 			     GFP_KERNEL);
 	if (!target->ch)
-		goto err;
+		goto out;
 
 	node_idx = 0;
 	for_each_online_node(node) {
@@ -3315,9 +3311,6 @@ err_disconnect:
 	}
 
 	kfree(target->ch);
-
-err:
-	scsi_host_put(target_host);
 	goto out;
 }
 
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/infiniband/ulp/srp/ib_srp.h linux-libre-4.1.6-gnu/drivers/infiniband/ulp/srp/ib_srp.h
--- linux-libre-4.1-gnu/drivers/infiniband/ulp/srp/ib_srp.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/infiniband/ulp/srp/ib_srp.h	2015-08-16 23:52:51.000000000 -0400
@@ -170,6 +170,7 @@ struct srp_rdma_ch {
 
 	struct completion	tsk_mgmt_done;
 	u8			tsk_mgmt_status;
+	bool			connected;
 };
 
 /**
@@ -214,7 +215,6 @@ struct srp_target_port {
 	__be16			pkey;
 
 	u32			rq_tmo_jiffies;
-	bool			connected;
 
 	int			zero_req_lim;
 
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/input/mouse/alps.c linux-libre-4.1.6-gnu/drivers/input/mouse/alps.c
--- linux-libre-4.1-gnu/drivers/input/mouse/alps.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/input/mouse/alps.c	2015-08-16 23:52:51.000000000 -0400
@@ -20,6 +20,7 @@
 #include <linux/input/mt.h>
 #include <linux/serio.h>
 #include <linux/libps2.h>
+#include <linux/dmi.h>
 
 #include "psmouse.h"
 #include "alps.h"
@@ -99,6 +100,7 @@ static const struct alps_nibble_commands
 #define ALPS_FOUR_BUTTONS	0x40	/* 4 direction button present */
 #define ALPS_PS2_INTERLEAVED	0x80	/* 3-byte PS/2 packet interleaved with
 					   6-byte ALPS packet */
+#define ALPS_DELL		0x100	/* device is a Dell laptop */
 #define ALPS_BUTTONPAD		0x200	/* device is a clickpad */
 
 static const struct alps_model_info alps_model_data[] = {
@@ -251,9 +253,9 @@ static void alps_process_packet_v1_v2(st
 		return;
 	}
 
-	/* Non interleaved V2 dualpoint has separate stick button bits */
+	/* Dell non interleaved V2 dualpoint has separate stick button bits */
 	if (priv->proto_version == ALPS_PROTO_V2 &&
-	    priv->flags == (ALPS_PASS | ALPS_DUALPOINT)) {
+	    priv->flags == (ALPS_DELL | ALPS_PASS | ALPS_DUALPOINT)) {
 		left |= packet[0] & 1;
 		right |= packet[0] & 2;
 		middle |= packet[0] & 4;
@@ -2542,6 +2544,8 @@ static int alps_set_protocol(struct psmo
 	priv->byte0 = protocol->byte0;
 	priv->mask0 = protocol->mask0;
 	priv->flags = protocol->flags;
+	if (dmi_name_in_vendors("Dell"))
+		priv->flags |= ALPS_DELL;
 
 	priv->x_max = 2000;
 	priv->y_max = 1400;
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/input/mouse/synaptics.c linux-libre-4.1.6-gnu/drivers/input/mouse/synaptics.c
--- linux-libre-4.1-gnu/drivers/input/mouse/synaptics.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/input/mouse/synaptics.c	2015-08-16 23:52:51.000000000 -0400
@@ -1199,7 +1199,7 @@ static void set_input_params(struct psmo
 					ABS_MT_POSITION_Y);
 		/* Image sensors can report per-contact pressure */
 		input_set_abs_params(dev, ABS_MT_PRESSURE, 0, 255, 0, 0);
-		input_mt_init_slots(dev, 3, INPUT_MT_POINTER | INPUT_MT_TRACK);
+		input_mt_init_slots(dev, 2, INPUT_MT_POINTER | INPUT_MT_TRACK);
 
 		/* Image sensors can signal 4 and 5 finger clicks */
 		__set_bit(BTN_TOOL_QUADTAP, dev->keybit);
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/input/touchscreen/pixcir_i2c_ts.c linux-libre-4.1.6-gnu/drivers/input/touchscreen/pixcir_i2c_ts.c
--- linux-libre-4.1-gnu/drivers/input/touchscreen/pixcir_i2c_ts.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/input/touchscreen/pixcir_i2c_ts.c	2015-08-16 23:52:51.000000000 -0400
@@ -78,7 +78,7 @@ static void pixcir_ts_parse(struct pixci
 	}
 
 	ret = i2c_master_recv(tsdata->client, rdbuf, readsize);
-	if (ret != sizeof(rdbuf)) {
+	if (ret != readsize) {
 		dev_err(&tsdata->client->dev,
 			"%s: i2c_master_recv failed(), ret=%d\n",
 			__func__, ret);
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/input/touchscreen/usbtouchscreen.c linux-libre-4.1.6-gnu/drivers/input/touchscreen/usbtouchscreen.c
--- linux-libre-4.1-gnu/drivers/input/touchscreen/usbtouchscreen.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/input/touchscreen/usbtouchscreen.c	2015-08-16 23:52:51.000000000 -0400
@@ -627,6 +627,9 @@ static int dmc_tsc10_init(struct usbtouc
 		goto err_out;
 	}
 
+	/* TSC-25 data sheet specifies a delay after the RESET command */
+	msleep(150);
+
 	/* set coordinate output rate */
 	buf[0] = buf[1] = 0xFF;
 	ret = usb_control_msg(dev, usb_rcvctrlpipe (dev, 0),
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/iommu/amd_iommu.c linux-libre-4.1.6-gnu/drivers/iommu/amd_iommu.c
--- linux-libre-4.1-gnu/drivers/iommu/amd_iommu.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/iommu/amd_iommu.c	2015-08-16 23:52:51.000000000 -0400
@@ -1869,9 +1869,15 @@ static void free_pt_##LVL (unsigned long
 	pt = (u64 *)__pt;					\
 								\
 	for (i = 0; i < 512; ++i) {				\
+		/* PTE present? */				\
 		if (!IOMMU_PTE_PRESENT(pt[i]))			\
 			continue;				\
 								\
+		/* Large PTE? */				\
+		if (PM_PTE_LEVEL(pt[i]) == 0 ||			\
+		    PM_PTE_LEVEL(pt[i]) == 7)			\
+			continue;				\
+								\
 		p = (unsigned long)IOMMU_PTE_PAGE(pt[i]);	\
 		FN(p);						\
 	}							\
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/iommu/arm-smmu.c linux-libre-4.1.6-gnu/drivers/iommu/arm-smmu.c
--- linux-libre-4.1-gnu/drivers/iommu/arm-smmu.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/iommu/arm-smmu.c	2015-08-16 23:52:51.000000000 -0400
@@ -1567,7 +1567,7 @@ static int arm_smmu_device_cfg_probe(str
 		return -ENODEV;
 	}
 
-	if ((id & ID0_S1TS) && ((smmu->version == 1) || (id & ID0_ATOSNS))) {
+	if ((id & ID0_S1TS) && ((smmu->version == 1) || !(id & ID0_ATOSNS))) {
 		smmu->features |= ARM_SMMU_FEAT_TRANS_OPS;
 		dev_notice(smmu->dev, "\taddress translation ops\n");
 	}
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/iommu/intel-iommu.c linux-libre-4.1.6-gnu/drivers/iommu/intel-iommu.c
--- linux-libre-4.1-gnu/drivers/iommu/intel-iommu.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/iommu/intel-iommu.c	2015-08-16 23:52:51.000000000 -0400
@@ -1756,8 +1756,9 @@ static int domain_init(struct dmar_domai
 
 static void domain_exit(struct dmar_domain *domain)
 {
+	struct dmar_drhd_unit *drhd;
+	struct intel_iommu *iommu;
 	struct page *freelist = NULL;
-	int i;
 
 	/* Domain 0 is reserved, so dont process it */
 	if (!domain)
@@ -1777,8 +1778,10 @@ static void domain_exit(struct dmar_doma
 
 	/* clear attached or cached domains */
 	rcu_read_lock();
-	for_each_set_bit(i, domain->iommu_bmp, g_num_of_iommus)
-		iommu_detach_domain(domain, g_iommus[i]);
+	for_each_active_iommu(iommu, drhd)
+		if (domain_type_is_vm(domain) ||
+		    test_bit(iommu->seq_id, domain->iommu_bmp))
+			iommu_detach_domain(domain, iommu);
 	rcu_read_unlock();
 
 	dma_free_pagelist(freelist);
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/irqchip/irq-gic-v3-its.c linux-libre-4.1.6-gnu/drivers/irqchip/irq-gic-v3-its.c
--- linux-libre-4.1-gnu/drivers/irqchip/irq-gic-v3-its.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/irqchip/irq-gic-v3-its.c	2015-08-16 23:52:51.000000000 -0400
@@ -75,6 +75,13 @@ struct its_node {
 
 #define ITS_ITT_ALIGN		SZ_256
 
+struct event_lpi_map {
+	unsigned long		*lpi_map;
+	u16			*col_map;
+	irq_hw_number_t		lpi_base;
+	int			nr_lpis;
+};
+
 /*
  * The ITS view of a device - belongs to an ITS, a collection, owns an
  * interrupt translation table, and a list of interrupts.
@@ -82,11 +89,8 @@ struct its_node {
 struct its_device {
 	struct list_head	entry;
 	struct its_node		*its;
-	struct its_collection	*collection;
+	struct event_lpi_map	event_map;
 	void			*itt;
-	unsigned long		*lpi_map;
-	irq_hw_number_t		lpi_base;
-	int			nr_lpis;
 	u32			nr_ites;
 	u32			device_id;
 };
@@ -99,6 +103,14 @@ static struct rdists *gic_rdists;
 #define gic_data_rdist()		(raw_cpu_ptr(gic_rdists->rdist))
 #define gic_data_rdist_rd_base()	(gic_data_rdist()->rd_base)
 
+static struct its_collection *dev_event_to_col(struct its_device *its_dev,
+					       u32 event)
+{
+	struct its_node *its = its_dev->its;
+
+	return its->collections + its_dev->event_map.col_map[event];
+}
+
 /*
  * ITS command descriptors - parameters to be encoded in a command
  * block.
@@ -134,7 +146,7 @@ struct its_cmd_desc {
 		struct {
 			struct its_device *dev;
 			struct its_collection *col;
-			u32 id;
+			u32 event_id;
 		} its_movi_cmd;
 
 		struct {
@@ -241,7 +253,7 @@ static struct its_collection *its_build_
 
 	its_fixup_cmd(cmd);
 
-	return desc->its_mapd_cmd.dev->collection;
+	return NULL;
 }
 
 static struct its_collection *its_build_mapc_cmd(struct its_cmd_block *cmd,
@@ -260,52 +272,72 @@ static struct its_collection *its_build_
 static struct its_collection *its_build_mapvi_cmd(struct its_cmd_block *cmd,
 						  struct its_cmd_desc *desc)
 {
+	struct its_collection *col;
+
+	col = dev_event_to_col(desc->its_mapvi_cmd.dev,
+			       desc->its_mapvi_cmd.event_id);
+
 	its_encode_cmd(cmd, GITS_CMD_MAPVI);
 	its_encode_devid(cmd, desc->its_mapvi_cmd.dev->device_id);
 	its_encode_event_id(cmd, desc->its_mapvi_cmd.event_id);
 	its_encode_phys_id(cmd, desc->its_mapvi_cmd.phys_id);
-	its_encode_collection(cmd, desc->its_mapvi_cmd.dev->collection->col_id);
+	its_encode_collection(cmd, col->col_id);
 
 	its_fixup_cmd(cmd);
 
-	return desc->its_mapvi_cmd.dev->collection;
+	return col;
 }
 
 static struct its_collection *its_build_movi_cmd(struct its_cmd_block *cmd,
 						 struct its_cmd_desc *desc)
 {
+	struct its_collection *col;
+
+	col = dev_event_to_col(desc->its_movi_cmd.dev,
+			       desc->its_movi_cmd.event_id);
+
 	its_encode_cmd(cmd, GITS_CMD_MOVI);
 	its_encode_devid(cmd, desc->its_movi_cmd.dev->device_id);
-	its_encode_event_id(cmd, desc->its_movi_cmd.id);
+	its_encode_event_id(cmd, desc->its_movi_cmd.event_id);
 	its_encode_collection(cmd, desc->its_movi_cmd.col->col_id);
 
 	its_fixup_cmd(cmd);
 
-	return desc->its_movi_cmd.dev->collection;
+	return col;
 }
 
 static struct its_collection *its_build_discard_cmd(struct its_cmd_block *cmd,
 						    struct its_cmd_desc *desc)
 {
+	struct its_collection *col;
+
+	col = dev_event_to_col(desc->its_discard_cmd.dev,
+			       desc->its_discard_cmd.event_id);
+
 	its_encode_cmd(cmd, GITS_CMD_DISCARD);
 	its_encode_devid(cmd, desc->its_discard_cmd.dev->device_id);
 	its_encode_event_id(cmd, desc->its_discard_cmd.event_id);
 
 	its_fixup_cmd(cmd);
 
-	return desc->its_discard_cmd.dev->collection;
+	return col;
 }
 
 static struct its_collection *its_build_inv_cmd(struct its_cmd_block *cmd,
 						struct its_cmd_desc *desc)
 {
+	struct its_collection *col;
+
+	col = dev_event_to_col(desc->its_inv_cmd.dev,
+			       desc->its_inv_cmd.event_id);
+
 	its_encode_cmd(cmd, GITS_CMD_INV);
 	its_encode_devid(cmd, desc->its_inv_cmd.dev->device_id);
 	its_encode_event_id(cmd, desc->its_inv_cmd.event_id);
 
 	its_fixup_cmd(cmd);
 
-	return desc->its_inv_cmd.dev->collection;
+	return col;
 }
 
 static struct its_collection *its_build_invall_cmd(struct its_cmd_block *cmd,
@@ -497,7 +529,7 @@ static void its_send_movi(struct its_dev
 
 	desc.its_movi_cmd.dev = dev;
 	desc.its_movi_cmd.col = col;
-	desc.its_movi_cmd.id = id;
+	desc.its_movi_cmd.event_id = id;
 
 	its_send_single_command(dev->its, its_build_movi_cmd, &desc);
 }
@@ -528,7 +560,7 @@ static void its_send_invall(struct its_n
 static inline u32 its_get_event_id(struct irq_data *d)
 {
 	struct its_device *its_dev = irq_data_get_irq_chip_data(d);
-	return d->hwirq - its_dev->lpi_base;
+	return d->hwirq - its_dev->event_map.lpi_base;
 }
 
 static void lpi_set_config(struct irq_data *d, bool enable)
@@ -583,7 +615,7 @@ static int its_set_affinity(struct irq_d
 
 	target_col = &its_dev->its->collections[cpu];
 	its_send_movi(its_dev, target_col, id);
-	its_dev->collection = target_col;
+	its_dev->event_map.col_map[id] = cpu;
 
 	return IRQ_SET_MASK_OK_DONE;
 }
@@ -713,8 +745,10 @@ out:
 	return bitmap;
 }
 
-static void its_lpi_free(unsigned long *bitmap, int base, int nr_ids)
+static void its_lpi_free(struct event_lpi_map *map)
 {
+	int base = map->lpi_base;
+	int nr_ids = map->nr_lpis;
 	int lpi;
 
 	spin_lock(&lpi_lock);
@@ -731,7 +765,8 @@ static void its_lpi_free(unsigned long *
 
 	spin_unlock(&lpi_lock);
 
-	kfree(bitmap);
+	kfree(map->lpi_map);
+	kfree(map->col_map);
 }
 
 /*
@@ -1099,11 +1134,11 @@ static struct its_device *its_create_dev
 	struct its_device *dev;
 	unsigned long *lpi_map;
 	unsigned long flags;
+	u16 *col_map = NULL;
 	void *itt;
 	int lpi_base;
 	int nr_lpis;
 	int nr_ites;
-	int cpu;
 	int sz;
 
 	dev = kzalloc(sizeof(*dev), GFP_KERNEL);
@@ -1117,20 +1152,24 @@ static struct its_device *its_create_dev
 	sz = max(sz, ITS_ITT_ALIGN) + ITS_ITT_ALIGN - 1;
 	itt = kzalloc(sz, GFP_KERNEL);
 	lpi_map = its_lpi_alloc_chunks(nvecs, &lpi_base, &nr_lpis);
+	if (lpi_map)
+		col_map = kzalloc(sizeof(*col_map) * nr_lpis, GFP_KERNEL);
 
-	if (!dev || !itt || !lpi_map) {
+	if (!dev || !itt || !lpi_map || !col_map) {
 		kfree(dev);
 		kfree(itt);
 		kfree(lpi_map);
+		kfree(col_map);
 		return NULL;
 	}
 
 	dev->its = its;
 	dev->itt = itt;
 	dev->nr_ites = nr_ites;
-	dev->lpi_map = lpi_map;
-	dev->lpi_base = lpi_base;
-	dev->nr_lpis = nr_lpis;
+	dev->event_map.lpi_map = lpi_map;
+	dev->event_map.col_map = col_map;
+	dev->event_map.lpi_base = lpi_base;
+	dev->event_map.nr_lpis = nr_lpis;
 	dev->device_id = dev_id;
 	INIT_LIST_HEAD(&dev->entry);
 
@@ -1138,10 +1177,6 @@ static struct its_device *its_create_dev
 	list_add(&dev->entry, &its->its_device_list);
 	raw_spin_unlock_irqrestore(&its->lock, flags);
 
-	/* Bind the device to the first possible CPU */
-	cpu = cpumask_first(cpu_online_mask);
-	dev->collection = &its->collections[cpu];
-
 	/* Map device to its ITT */
 	its_send_mapd(dev, 1);
 
@@ -1163,12 +1198,13 @@ static int its_alloc_device_irq(struct i
 {
 	int idx;
 
-	idx = find_first_zero_bit(dev->lpi_map, dev->nr_lpis);
-	if (idx == dev->nr_lpis)
+	idx = find_first_zero_bit(dev->event_map.lpi_map,
+				  dev->event_map.nr_lpis);
+	if (idx == dev->event_map.nr_lpis)
 		return -ENOSPC;
 
-	*hwirq = dev->lpi_base + idx;
-	set_bit(idx, dev->lpi_map);
+	*hwirq = dev->event_map.lpi_base + idx;
+	set_bit(idx, dev->event_map.lpi_map);
 
 	return 0;
 }
@@ -1288,7 +1324,8 @@ static int its_irq_domain_alloc(struct i
 		irq_domain_set_hwirq_and_chip(domain, virq + i,
 					      hwirq, &its_irq_chip, its_dev);
 		dev_dbg(info->scratchpad[1].ptr, "ID:%d pID:%d vID:%d\n",
-			(int)(hwirq - its_dev->lpi_base), (int)hwirq, virq + i);
+			(int)(hwirq - its_dev->event_map.lpi_base),
+			(int)hwirq, virq + i);
 	}
 
 	return 0;
@@ -1300,6 +1337,9 @@ 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);
 
+	/* Bind the LPI to the first possible CPU */
+	its_dev->event_map.col_map[event] = cpumask_first(cpu_online_mask);
+
 	/* Map the GIC IRQ and event to the device */
 	its_send_mapvi(its_dev, d->hwirq, event);
 }
@@ -1327,17 +1367,16 @@ static void its_irq_domain_free(struct i
 		u32 event = its_get_event_id(data);
 
 		/* Mark interrupt index as unused */
-		clear_bit(event, its_dev->lpi_map);
+		clear_bit(event, its_dev->event_map.lpi_map);
 
 		/* Nuke the entry in the domain */
 		irq_domain_reset_irq_data(data);
 	}
 
 	/* If all interrupts have been freed, start mopping the floor */
-	if (bitmap_empty(its_dev->lpi_map, its_dev->nr_lpis)) {
-		its_lpi_free(its_dev->lpi_map,
-			     its_dev->lpi_base,
-			     its_dev->nr_lpis);
+	if (bitmap_empty(its_dev->event_map.lpi_map,
+			 its_dev->event_map.nr_lpis)) {
+		its_lpi_free(&its_dev->event_map);
 
 		/* Unmap device/itt */
 		its_send_mapd(its_dev, 0);
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/leds/led-class.c linux-libre-4.1.6-gnu/drivers/leds/led-class.c
--- linux-libre-4.1-gnu/drivers/leds/led-class.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/leds/led-class.c	2015-08-16 23:52:51.000000000 -0400
@@ -187,6 +187,7 @@ void led_classdev_resume(struct led_clas
 }
 EXPORT_SYMBOL_GPL(led_classdev_resume);
 
+#ifdef CONFIG_PM_SLEEP
 static int led_suspend(struct device *dev)
 {
 	struct led_classdev *led_cdev = dev_get_drvdata(dev);
@@ -206,11 +207,9 @@ static int led_resume(struct device *dev
 
 	return 0;
 }
+#endif
 
-static const struct dev_pm_ops leds_class_dev_pm_ops = {
-	.suspend        = led_suspend,
-	.resume         = led_resume,
-};
+static SIMPLE_DEV_PM_OPS(leds_class_dev_pm_ops, led_suspend, led_resume);
 
 static int match_name(struct device *dev, const void *data)
 {
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/md/bitmap.c linux-libre-4.1.6-gnu/drivers/md/bitmap.c
--- linux-libre-4.1-gnu/drivers/md/bitmap.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/md/bitmap.c	2015-08-16 23:52:51.000000000 -0400
@@ -494,7 +494,7 @@ static int bitmap_new_disk_sb(struct bit
 	bitmap_super_t *sb;
 	unsigned long chunksize, daemon_sleep, write_behind;
 
-	bitmap->storage.sb_page = alloc_page(GFP_KERNEL);
+	bitmap->storage.sb_page = alloc_page(GFP_KERNEL | __GFP_ZERO);
 	if (bitmap->storage.sb_page == NULL)
 		return -ENOMEM;
 	bitmap->storage.sb_page->index = 0;
@@ -541,6 +541,7 @@ static int bitmap_new_disk_sb(struct bit
 	sb->state = cpu_to_le32(bitmap->flags);
 	bitmap->events_cleared = bitmap->mddev->events;
 	sb->events_cleared = cpu_to_le64(bitmap->mddev->events);
+	bitmap->mddev->bitmap_info.nodes = 0;
 
 	kunmap_atomic(sb);
 
@@ -611,8 +612,16 @@ re_read:
 	daemon_sleep = le32_to_cpu(sb->daemon_sleep) * HZ;
 	write_behind = le32_to_cpu(sb->write_behind);
 	sectors_reserved = le32_to_cpu(sb->sectors_reserved);
-	nodes = le32_to_cpu(sb->nodes);
-	strlcpy(bitmap->mddev->bitmap_info.cluster_name, sb->cluster_name, 64);
+	/* XXX: This is a hack to ensure that we don't use clustering
+	 *  in case:
+	 *	- dm-raid is in use and
+	 *	- the nodes written in bitmap_sb is erroneous.
+	 */
+	if (!bitmap->mddev->sync_super) {
+		nodes = le32_to_cpu(sb->nodes);
+		strlcpy(bitmap->mddev->bitmap_info.cluster_name,
+				sb->cluster_name, 64);
+	}
 
 	/* verify that the bitmap-specific fields are valid */
 	if (sb->magic != cpu_to_le32(BITMAP_MAGIC))
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/md/dm.c linux-libre-4.1.6-gnu/drivers/md/dm.c
--- linux-libre-4.1-gnu/drivers/md/dm.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/md/dm.c	2015-08-16 23:52:51.000000000 -0400
@@ -1053,13 +1053,10 @@ static struct dm_rq_target_io *tio_from_
  */
 static void rq_completed(struct mapped_device *md, int rw, bool run_queue)
 {
-	int nr_requests_pending;
-
 	atomic_dec(&md->pending[rw]);
 
 	/* nudge anyone waiting on suspend queue */
-	nr_requests_pending = md_in_flight(md);
-	if (!nr_requests_pending)
+	if (!md_in_flight(md))
 		wake_up(&md->wait);
 
 	/*
@@ -1071,8 +1068,7 @@ static void rq_completed(struct mapped_d
 	if (run_queue) {
 		if (md->queue->mq_ops)
 			blk_mq_run_hw_queues(md->queue, true);
-		else if (!nr_requests_pending ||
-			 (nr_requests_pending >= md->queue->nr_congestion_on))
+		else
 			blk_run_queue_async(md->queue);
 	}
 
@@ -1723,7 +1719,8 @@ static int dm_merge_bvec(struct request_
 	struct mapped_device *md = q->queuedata;
 	struct dm_table *map = dm_get_live_table_fast(md);
 	struct dm_target *ti;
-	sector_t max_sectors, max_size = 0;
+	sector_t max_sectors;
+	int max_size = 0;
 
 	if (unlikely(!map))
 		goto out;
@@ -1736,18 +1733,10 @@ static int dm_merge_bvec(struct request_
 	 * Find maximum amount of I/O that won't need splitting
 	 */
 	max_sectors = min(max_io_len(bvm->bi_sector, ti),
-			  (sector_t) queue_max_sectors(q));
+			  (sector_t) BIO_MAX_SECTORS);
 	max_size = (max_sectors << SECTOR_SHIFT) - bvm->bi_size;
-
-	/*
-	 * FIXME: this stop-gap fix _must_ be cleaned up (by passing a sector_t
-	 * to the targets' merge function since it holds sectors not bytes).
-	 * Just doing this as an interim fix for stable@ because the more
-	 * comprehensive cleanup of switching to sector_t will impact every
-	 * DM target that implements a ->merge hook.
-	 */
-	if (max_size > INT_MAX)
-		max_size = INT_MAX;
+	if (max_size < 0)
+		max_size = 0;
 
 	/*
 	 * merge_bvec_fn() returns number of bytes
@@ -1755,13 +1744,13 @@ static int dm_merge_bvec(struct request_
 	 * max is precomputed maximal io size
 	 */
 	if (max_size && ti->type->merge)
-		max_size = ti->type->merge(ti, bvm, biovec, (int) max_size);
+		max_size = ti->type->merge(ti, bvm, biovec, max_size);
 	/*
 	 * If the target doesn't support merge method and some of the devices
-	 * provided their merge_bvec method (we know this by looking for the
-	 * max_hw_sectors that dm_set_device_limits may set), then we can't
-	 * allow bios with multiple vector entries.  So always set max_size
-	 * to 0, and the code below allows just one page.
+	 * provided their merge_bvec method (we know this by looking at
+	 * queue_max_hw_sectors), then we can't allow bios with multiple vector
+	 * entries.  So always set max_size to 0, and the code below allows
+	 * just one page.
 	 */
 	else if (queue_max_hw_sectors(q) <= PAGE_SIZE >> 9)
 		max_size = 0;
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/md/dm-cache-policy-cleaner.c linux-libre-4.1.6-gnu/drivers/md/dm-cache-policy-cleaner.c
--- linux-libre-4.1-gnu/drivers/md/dm-cache-policy-cleaner.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/md/dm-cache-policy-cleaner.c	2015-08-16 23:52:51.000000000 -0400
@@ -171,7 +171,8 @@ static void remove_cache_hash_entry(stru
 /* Public interface (see dm-cache-policy.h */
 static int wb_map(struct dm_cache_policy *pe, dm_oblock_t oblock,
 		  bool can_block, bool can_migrate, bool discarded_oblock,
-		  struct bio *bio, struct policy_result *result)
+		  struct bio *bio, struct policy_locker *locker,
+		  struct policy_result *result)
 {
 	struct policy *p = to_policy(pe);
 	struct wb_cache_entry *e;
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/md/dm-cache-policy.h linux-libre-4.1.6-gnu/drivers/md/dm-cache-policy.h
--- linux-libre-4.1-gnu/drivers/md/dm-cache-policy.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/md/dm-cache-policy.h	2015-08-16 23:52:51.000000000 -0400
@@ -70,6 +70,18 @@ enum policy_operation {
 };
 
 /*
+ * When issuing a POLICY_REPLACE the policy needs to make a callback to
+ * lock the block being demoted.  This doesn't need to occur during a
+ * writeback operation since the block remains in the cache.
+ */
+struct policy_locker;
+typedef int (*policy_lock_fn)(struct policy_locker *l, dm_oblock_t oblock);
+
+struct policy_locker {
+	policy_lock_fn fn;
+};
+
+/*
  * This is the instruction passed back to the core target.
  */
 struct policy_result {
@@ -122,7 +134,8 @@ struct dm_cache_policy {
 	 */
 	int (*map)(struct dm_cache_policy *p, dm_oblock_t oblock,
 		   bool can_block, bool can_migrate, bool discarded_oblock,
-		   struct bio *bio, struct policy_result *result);
+		   struct bio *bio, struct policy_locker *locker,
+		   struct policy_result *result);
 
 	/*
 	 * Sometimes we want to see if a block is in the cache, without
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/md/dm-cache-policy-internal.h linux-libre-4.1.6-gnu/drivers/md/dm-cache-policy-internal.h
--- linux-libre-4.1-gnu/drivers/md/dm-cache-policy-internal.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/md/dm-cache-policy-internal.h	2015-08-16 23:52:51.000000000 -0400
@@ -16,9 +16,10 @@
  */
 static inline int policy_map(struct dm_cache_policy *p, dm_oblock_t oblock,
 			     bool can_block, bool can_migrate, bool discarded_oblock,
-			     struct bio *bio, struct policy_result *result)
+			     struct bio *bio, struct policy_locker *locker,
+			     struct policy_result *result)
 {
-	return p->map(p, oblock, can_block, can_migrate, discarded_oblock, bio, result);
+	return p->map(p, oblock, can_block, can_migrate, discarded_oblock, bio, locker, result);
 }
 
 static inline int policy_lookup(struct dm_cache_policy *p, dm_oblock_t oblock, dm_cblock_t *cblock)
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/md/dm-cache-policy-mq.c linux-libre-4.1.6-gnu/drivers/md/dm-cache-policy-mq.c
--- linux-libre-4.1-gnu/drivers/md/dm-cache-policy-mq.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/md/dm-cache-policy-mq.c	2015-08-16 23:52:51.000000000 -0400
@@ -693,9 +693,10 @@ static void requeue(struct mq_policy *mq
  * - set the hit count to a hard coded value other than 1, eg, is it better
  *   if it goes in at level 2?
  */
-static int demote_cblock(struct mq_policy *mq, dm_oblock_t *oblock)
+static int demote_cblock(struct mq_policy *mq,
+			 struct policy_locker *locker, dm_oblock_t *oblock)
 {
-	struct entry *demoted = pop(mq, &mq->cache_clean);
+	struct entry *demoted = peek(&mq->cache_clean);
 
 	if (!demoted)
 		/*
@@ -707,6 +708,13 @@ static int demote_cblock(struct mq_polic
 		 */
 		return -ENOSPC;
 
+	if (locker->fn(locker, demoted->oblock))
+		/*
+		 * We couldn't lock the demoted block.
+		 */
+		return -EBUSY;
+
+	del(mq, demoted);
 	*oblock = demoted->oblock;
 	free_entry(&mq->cache_pool, demoted);
 
@@ -795,6 +803,7 @@ static int cache_entry_found(struct mq_p
  * finding which cache block to use.
  */
 static int pre_cache_to_cache(struct mq_policy *mq, struct entry *e,
+			      struct policy_locker *locker,
 			      struct policy_result *result)
 {
 	int r;
@@ -803,11 +812,12 @@ static int pre_cache_to_cache(struct mq_
 	/* Ensure there's a free cblock in the cache */
 	if (epool_empty(&mq->cache_pool)) {
 		result->op = POLICY_REPLACE;
-		r = demote_cblock(mq, &result->old_oblock);
+		r = demote_cblock(mq, locker, &result->old_oblock);
 		if (r) {
 			result->op = POLICY_MISS;
 			return 0;
 		}
+
 	} else
 		result->op = POLICY_NEW;
 
@@ -829,7 +839,8 @@ static int pre_cache_to_cache(struct mq_
 
 static int pre_cache_entry_found(struct mq_policy *mq, struct entry *e,
 				 bool can_migrate, bool discarded_oblock,
-				 int data_dir, struct policy_result *result)
+				 int data_dir, struct policy_locker *locker,
+				 struct policy_result *result)
 {
 	int r = 0;
 
@@ -842,7 +853,7 @@ static int pre_cache_entry_found(struct
 
 	else {
 		requeue(mq, e);
-		r = pre_cache_to_cache(mq, e, result);
+		r = pre_cache_to_cache(mq, e, locker, result);
 	}
 
 	return r;
@@ -872,6 +883,7 @@ static void insert_in_pre_cache(struct m
 }
 
 static void insert_in_cache(struct mq_policy *mq, dm_oblock_t oblock,
+			    struct policy_locker *locker,
 			    struct policy_result *result)
 {
 	int r;
@@ -879,7 +891,7 @@ static void insert_in_cache(struct mq_po
 
 	if (epool_empty(&mq->cache_pool)) {
 		result->op = POLICY_REPLACE;
-		r = demote_cblock(mq, &result->old_oblock);
+		r = demote_cblock(mq, locker, &result->old_oblock);
 		if (unlikely(r)) {
 			result->op = POLICY_MISS;
 			insert_in_pre_cache(mq, oblock);
@@ -907,11 +919,12 @@ static void insert_in_cache(struct mq_po
 
 static int no_entry_found(struct mq_policy *mq, dm_oblock_t oblock,
 			  bool can_migrate, bool discarded_oblock,
-			  int data_dir, struct policy_result *result)
+			  int data_dir, struct policy_locker *locker,
+			  struct policy_result *result)
 {
 	if (adjusted_promote_threshold(mq, discarded_oblock, data_dir) <= 1) {
 		if (can_migrate)
-			insert_in_cache(mq, oblock, result);
+			insert_in_cache(mq, oblock, locker, result);
 		else
 			return -EWOULDBLOCK;
 	} else {
@@ -928,7 +941,8 @@ static int no_entry_found(struct mq_poli
  */
 static int map(struct mq_policy *mq, dm_oblock_t oblock,
 	       bool can_migrate, bool discarded_oblock,
-	       int data_dir, struct policy_result *result)
+	       int data_dir, struct policy_locker *locker,
+	       struct policy_result *result)
 {
 	int r = 0;
 	struct entry *e = hash_lookup(mq, oblock);
@@ -942,11 +956,11 @@ static int map(struct mq_policy *mq, dm_
 
 	else if (e)
 		r = pre_cache_entry_found(mq, e, can_migrate, discarded_oblock,
-					  data_dir, result);
+					  data_dir, locker, result);
 
 	else
 		r = no_entry_found(mq, oblock, can_migrate, discarded_oblock,
-				   data_dir, result);
+				   data_dir, locker, result);
 
 	if (r == -EWOULDBLOCK)
 		result->op = POLICY_MISS;
@@ -1012,7 +1026,8 @@ static void copy_tick(struct mq_policy *
 
 static int mq_map(struct dm_cache_policy *p, dm_oblock_t oblock,
 		  bool can_block, bool can_migrate, bool discarded_oblock,
-		  struct bio *bio, struct policy_result *result)
+		  struct bio *bio, struct policy_locker *locker,
+		  struct policy_result *result)
 {
 	int r;
 	struct mq_policy *mq = to_mq_policy(p);
@@ -1028,7 +1043,7 @@ static int mq_map(struct dm_cache_policy
 
 	iot_examine_bio(&mq->tracker, bio);
 	r = map(mq, oblock, can_migrate, discarded_oblock,
-		bio_data_dir(bio), result);
+		bio_data_dir(bio), locker, result);
 
 	mutex_unlock(&mq->lock);
 
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/md/dm-cache-target.c linux-libre-4.1.6-gnu/drivers/md/dm-cache-target.c
--- linux-libre-4.1-gnu/drivers/md/dm-cache-target.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/md/dm-cache-target.c	2015-08-16 23:52:51.000000000 -0400
@@ -1445,16 +1445,43 @@ static void inc_miss_counter(struct cach
 		   &cache->stats.read_miss : &cache->stats.write_miss);
 }
 
+/*----------------------------------------------------------------*/
+
+struct old_oblock_lock {
+	struct policy_locker locker;
+	struct cache *cache;
+	struct prealloc *structs;
+	struct dm_bio_prison_cell *cell;
+};
+
+static int null_locker(struct policy_locker *locker, dm_oblock_t b)
+{
+	/* This should never be called */
+	BUG();
+	return 0;
+}
+
+static int cell_locker(struct policy_locker *locker, dm_oblock_t b)
+{
+	struct old_oblock_lock *l = container_of(locker, struct old_oblock_lock, locker);
+	struct dm_bio_prison_cell *cell_prealloc = prealloc_get_cell(l->structs);
+
+	return bio_detain(l->cache, b, NULL, cell_prealloc,
+			  (cell_free_fn) prealloc_put_cell,
+			  l->structs, &l->cell);
+}
+
 static void process_bio(struct cache *cache, struct prealloc *structs,
 			struct bio *bio)
 {
 	int r;
 	bool release_cell = true;
 	dm_oblock_t block = get_bio_block(cache, bio);
-	struct dm_bio_prison_cell *cell_prealloc, *old_ocell, *new_ocell;
+	struct dm_bio_prison_cell *cell_prealloc, *new_ocell;
 	struct policy_result lookup_result;
 	bool passthrough = passthrough_mode(&cache->features);
 	bool discarded_block, can_migrate;
+	struct old_oblock_lock ool;
 
 	/*
 	 * Check to see if that block is currently migrating.
@@ -1469,8 +1496,12 @@ static void process_bio(struct cache *ca
 	discarded_block = is_discarded_oblock(cache, block);
 	can_migrate = !passthrough && (discarded_block || spare_migration_bandwidth(cache));
 
+	ool.locker.fn = cell_locker;
+	ool.cache = cache;
+	ool.structs = structs;
+	ool.cell = NULL;
 	r = policy_map(cache->policy, block, true, can_migrate, discarded_block,
-		       bio, &lookup_result);
+		       bio, &ool.locker, &lookup_result);
 
 	if (r == -EWOULDBLOCK)
 		/* migration has been denied */
@@ -1527,27 +1558,11 @@ static void process_bio(struct cache *ca
 		break;
 
 	case POLICY_REPLACE:
-		cell_prealloc = prealloc_get_cell(structs);
-		r = bio_detain(cache, lookup_result.old_oblock, bio, cell_prealloc,
-			       (cell_free_fn) prealloc_put_cell,
-			       structs, &old_ocell);
-		if (r > 0) {
-			/*
-			 * We have to be careful to avoid lock inversion of
-			 * the cells.  So we back off, and wait for the
-			 * old_ocell to become free.
-			 */
-			policy_force_mapping(cache->policy, block,
-					     lookup_result.old_oblock);
-			atomic_inc(&cache->stats.cache_cell_clash);
-			break;
-		}
 		atomic_inc(&cache->stats.demotion);
 		atomic_inc(&cache->stats.promotion);
-
 		demote_then_promote(cache, structs, lookup_result.old_oblock,
 				    block, lookup_result.cblock,
-				    old_ocell, new_ocell);
+				    ool.cell, new_ocell);
 		release_cell = false;
 		break;
 
@@ -2595,6 +2610,9 @@ static int __cache_map(struct cache *cac
 	bool discarded_block;
 	struct policy_result lookup_result;
 	struct per_bio_data *pb = init_per_bio_data(bio, pb_data_size);
+	struct old_oblock_lock ool;
+
+	ool.locker.fn = null_locker;
 
 	if (unlikely(from_oblock(block) >= from_oblock(cache->origin_blocks))) {
 		/*
@@ -2633,7 +2651,7 @@ static int __cache_map(struct cache *cac
 	discarded_block = is_discarded_oblock(cache, block);
 
 	r = policy_map(cache->policy, block, false, can_migrate, discarded_block,
-		       bio, &lookup_result);
+		       bio, &ool.locker, &lookup_result);
 	if (r == -EWOULDBLOCK) {
 		cell_defer(cache, *cell, true);
 		return DM_MAPIO_SUBMITTED;
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/md/dm-stats.c linux-libre-4.1.6-gnu/drivers/md/dm-stats.c
--- linux-libre-4.1-gnu/drivers/md/dm-stats.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/md/dm-stats.c	2015-08-16 23:52:51.000000000 -0400
@@ -795,6 +795,8 @@ static int message_stats_create(struct m
 		return -EINVAL;
 
 	if (sscanf(argv[2], "/%u%c", &divisor, &dummy) == 1) {
+		if (!divisor)
+			return -EINVAL;
 		step = end - start;
 		if (do_div(step, divisor))
 			step++;
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/md/dm-thin.c linux-libre-4.1.6-gnu/drivers/md/dm-thin.c
--- linux-libre-4.1-gnu/drivers/md/dm-thin.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/md/dm-thin.c	2015-08-16 23:52:51.000000000 -0400
@@ -18,6 +18,7 @@
 #include <linux/init.h>
 #include <linux/module.h>
 #include <linux/slab.h>
+#include <linux/vmalloc.h>
 #include <linux/sort.h>
 #include <linux/rbtree.h>
 
@@ -260,7 +261,7 @@ struct pool {
 	process_mapping_fn process_prepared_mapping;
 	process_mapping_fn process_prepared_discard;
 
-	struct dm_bio_prison_cell *cell_sort_array[CELL_SORT_ARRAY_SIZE];
+	struct dm_bio_prison_cell **cell_sort_array;
 };
 
 static enum pool_mode get_pool_mode(struct pool *pool);
@@ -2499,6 +2500,7 @@ static void __pool_destroy(struct pool *
 {
 	__pool_table_remove(pool);
 
+	vfree(pool->cell_sort_array);
 	if (dm_pool_metadata_close(pool->pmd) < 0)
 		DMWARN("%s: dm_pool_metadata_close() failed.", __func__);
 
@@ -2611,6 +2613,13 @@ static struct pool *pool_create(struct m
 		goto bad_mapping_pool;
 	}
 
+	pool->cell_sort_array = vmalloc(sizeof(*pool->cell_sort_array) * CELL_SORT_ARRAY_SIZE);
+	if (!pool->cell_sort_array) {
+		*error = "Error allocating cell sort array";
+		err_p = ERR_PTR(-ENOMEM);
+		goto bad_sort_array;
+	}
+
 	pool->ref_count = 1;
 	pool->last_commit_jiffies = jiffies;
 	pool->pool_md = pool_md;
@@ -2619,6 +2628,8 @@ static struct pool *pool_create(struct m
 
 	return pool;
 
+bad_sort_array:
+	mempool_destroy(pool->mapping_pool);
 bad_mapping_pool:
 	dm_deferred_set_destroy(pool->all_io_ds);
 bad_all_io_ds:
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/md/md.c linux-libre-4.1.6-gnu/drivers/md/md.c
--- linux-libre-4.1-gnu/drivers/md/md.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/md/md.c	2015-08-16 23:52:51.000000000 -0400
@@ -4005,8 +4005,10 @@ new_dev_store(struct mddev *mddev, const
 	else
 		rdev = md_import_device(dev, -1, -1);
 
-	if (IS_ERR(rdev))
+	if (IS_ERR(rdev)) {
+		mddev_unlock(mddev);
 		return PTR_ERR(rdev);
+	}
 	err = bind_rdev_to_array(rdev, mddev);
  out:
 	if (err)
@@ -5159,6 +5161,7 @@ int md_run(struct mddev *mddev)
 		mddev_detach(mddev);
 		if (mddev->private)
 			pers->free(mddev, mddev->private);
+		mddev->private = NULL;
 		module_put(pers->owner);
 		bitmap_destroy(mddev);
 		return err;
@@ -5294,6 +5297,7 @@ static void md_clean(struct mddev *mddev
 	mddev->changed = 0;
 	mddev->degraded = 0;
 	mddev->safemode = 0;
+	mddev->private = NULL;
 	mddev->merge_check_needed = 0;
 	mddev->bitmap_info.offset = 0;
 	mddev->bitmap_info.default_offset = 0;
@@ -5366,6 +5370,7 @@ static void __md_stop(struct mddev *mdde
 	mddev->pers = NULL;
 	spin_unlock(&mddev->lock);
 	pers->free(mddev, mddev->private);
+	mddev->private = NULL;
 	if (pers->sync_request && mddev->to_remove == NULL)
 		mddev->to_remove = &md_redundancy_group;
 	module_put(pers->owner);
@@ -5735,7 +5740,7 @@ static int get_bitmap_file(struct mddev
 	char *ptr;
 	int err;
 
-	file = kmalloc(sizeof(*file), GFP_NOIO);
+	file = kzalloc(sizeof(*file), GFP_NOIO);
 	if (!file)
 		return -ENOMEM;
 
@@ -6375,7 +6380,7 @@ static int update_array_info(struct mdde
 	    mddev->ctime         != info->ctime         ||
 	    mddev->level         != info->level         ||
 /*	    mddev->layout        != info->layout        || */
-	    !mddev->persistent	 != info->not_persistent||
+	    mddev->persistent	 != !info->not_persistent ||
 	    mddev->chunk_sectors != info->chunk_size >> 9 ||
 	    /* ignore bottom 8 bits of state, and allow SB_BITMAP_PRESENT to change */
 	    ((state^info->state) & 0xfffffe00)
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/md/persistent-data/dm-btree.c linux-libre-4.1.6-gnu/drivers/md/persistent-data/dm-btree.c
--- linux-libre-4.1-gnu/drivers/md/persistent-data/dm-btree.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/md/persistent-data/dm-btree.c	2015-08-16 23:52:51.000000000 -0400
@@ -255,7 +255,7 @@ int dm_btree_del(struct dm_btree_info *i
 	int r;
 	struct del_stack *s;
 
-	s = kmalloc(sizeof(*s), GFP_KERNEL);
+	s = kmalloc(sizeof(*s), GFP_NOIO);
 	if (!s)
 		return -ENOMEM;
 	s->info = info;
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/md/persistent-data/dm-btree-remove.c linux-libre-4.1.6-gnu/drivers/md/persistent-data/dm-btree-remove.c
--- linux-libre-4.1-gnu/drivers/md/persistent-data/dm-btree-remove.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/md/persistent-data/dm-btree-remove.c	2015-08-16 23:52:51.000000000 -0400
@@ -309,8 +309,8 @@ static void redistribute3(struct dm_btre
 
 		if (s < 0 && nr_center < -s) {
 			/* not enough in central node */
-			shift(left, center, nr_center);
-			s = nr_center - target;
+			shift(left, center, -nr_center);
+			s += nr_center;
 			shift(left, right, s);
 			nr_right += s;
 		} else
@@ -323,7 +323,7 @@ static void redistribute3(struct dm_btre
 		if (s > 0 && nr_center < s) {
 			/* not enough in central node */
 			shift(center, right, nr_center);
-			s = target - nr_center;
+			s -= nr_center;
 			shift(left, right, s);
 			nr_left -= s;
 		} else
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/md/persistent-data/dm-space-map-metadata.c linux-libre-4.1.6-gnu/drivers/md/persistent-data/dm-space-map-metadata.c
--- linux-libre-4.1-gnu/drivers/md/persistent-data/dm-space-map-metadata.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/md/persistent-data/dm-space-map-metadata.c	2015-08-16 23:52:51.000000000 -0400
@@ -204,6 +204,27 @@ static void in(struct sm_metadata *smm)
 	smm->recursion_count++;
 }
 
+static int apply_bops(struct sm_metadata *smm)
+{
+	int r = 0;
+
+	while (!brb_empty(&smm->uncommitted)) {
+		struct block_op bop;
+
+		r = brb_pop(&smm->uncommitted, &bop);
+		if (r) {
+			DMERR("bug in bop ring buffer");
+			break;
+		}
+
+		r = commit_bop(smm, &bop);
+		if (r)
+			break;
+	}
+
+	return r;
+}
+
 static int out(struct sm_metadata *smm)
 {
 	int r = 0;
@@ -216,21 +237,8 @@ static int out(struct sm_metadata *smm)
 		return -ENOMEM;
 	}
 
-	if (smm->recursion_count == 1) {
-		while (!brb_empty(&smm->uncommitted)) {
-			struct block_op bop;
-
-			r = brb_pop(&smm->uncommitted, &bop);
-			if (r) {
-				DMERR("bug in bop ring buffer");
-				break;
-			}
-
-			r = commit_bop(smm, &bop);
-			if (r)
-				break;
-		}
-	}
+	if (smm->recursion_count == 1)
+		apply_bops(smm);
 
 	smm->recursion_count--;
 
@@ -704,6 +712,12 @@ static int sm_metadata_extend(struct dm_
 		}
 		old_len = smm->begin;
 
+		r = apply_bops(smm);
+		if (r) {
+			DMERR("%s: apply_bops failed", __func__);
+			goto out;
+		}
+
 		r = sm_ll_commit(&smm->ll);
 		if (r)
 			goto out;
@@ -773,6 +787,12 @@ int dm_sm_metadata_create(struct dm_spac
 	if (r)
 		return r;
 
+	r = apply_bops(smm);
+	if (r) {
+		DMERR("%s: apply_bops failed", __func__);
+		return r;
+	}
+
 	return sm_metadata_commit(sm);
 }
 
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/md/raid1.c linux-libre-4.1.6-gnu/drivers/md/raid1.c
--- linux-libre-4.1-gnu/drivers/md/raid1.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/md/raid1.c	2015-08-16 23:52:51.000000000 -0400
@@ -336,7 +336,7 @@ static void raid1_end_read_request(struc
 		spin_lock_irqsave(&conf->device_lock, flags);
 		if (r1_bio->mddev->degraded == conf->raid_disks ||
 		    (r1_bio->mddev->degraded == conf->raid_disks-1 &&
-		     !test_bit(Faulty, &conf->mirrors[mirror].rdev->flags)))
+		     test_bit(In_sync, &conf->mirrors[mirror].rdev->flags)))
 			uptodate = 1;
 		spin_unlock_irqrestore(&conf->device_lock, flags);
 	}
@@ -1475,6 +1475,7 @@ static void error(struct mddev *mddev, s
 {
 	char b[BDEVNAME_SIZE];
 	struct r1conf *conf = mddev->private;
+	unsigned long flags;
 
 	/*
 	 * If it is not operational, then we have already marked it as dead
@@ -1494,14 +1495,13 @@ static void error(struct mddev *mddev, s
 		return;
 	}
 	set_bit(Blocked, &rdev->flags);
+	spin_lock_irqsave(&conf->device_lock, flags);
 	if (test_and_clear_bit(In_sync, &rdev->flags)) {
-		unsigned long flags;
-		spin_lock_irqsave(&conf->device_lock, flags);
 		mddev->degraded++;
 		set_bit(Faulty, &rdev->flags);
-		spin_unlock_irqrestore(&conf->device_lock, flags);
 	} else
 		set_bit(Faulty, &rdev->flags);
+	spin_unlock_irqrestore(&conf->device_lock, flags);
 	/*
 	 * if recovery is running, make sure it aborts.
 	 */
@@ -1567,7 +1567,10 @@ static int raid1_spare_active(struct mdd
 	 * Find all failed disks within the RAID1 configuration
 	 * and mark them readable.
 	 * Called under mddev lock, so rcu protection not needed.
+	 * device_lock used to avoid races with raid1_end_read_request
+	 * which expects 'In_sync' flags and ->degraded to be consistent.
 	 */
+	spin_lock_irqsave(&conf->device_lock, flags);
 	for (i = 0; i < conf->raid_disks; i++) {
 		struct md_rdev *rdev = conf->mirrors[i].rdev;
 		struct md_rdev *repl = conf->mirrors[conf->raid_disks + i].rdev;
@@ -1598,7 +1601,6 @@ static int raid1_spare_active(struct mdd
 			sysfs_notify_dirent_safe(rdev->sysfs_state);
 		}
 	}
-	spin_lock_irqsave(&conf->device_lock, flags);
 	mddev->degraded -= count;
 	spin_unlock_irqrestore(&conf->device_lock, flags);
 
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/media/dvb-frontends/af9013.c linux-libre-4.1.6-gnu/drivers/media/dvb-frontends/af9013.c
--- linux-libre-4.1-gnu/drivers/media/dvb-frontends/af9013.c	2015-06-22 01:53:13.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/media/dvb-frontends/af9013.c	2015-08-17 08:23:53.000000000 -0400
@@ -605,6 +605,10 @@ static int af9013_set_frontend(struct dv
 			}
 		}
 
+		/* Return an error if can't find bandwidth or the right clock */
+		if (i == ARRAY_SIZE(coeff_lut))
+			return -EINVAL;
+
 		ret = af9013_wr_regs(state, 0xae00, coeff_lut[i].val,
 			sizeof(coeff_lut[i].val));
 	}
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/media/dvb-frontends/cx24116.c linux-libre-4.1.6-gnu/drivers/media/dvb-frontends/cx24116.c
--- linux-libre-4.1-gnu/drivers/media/dvb-frontends/cx24116.c	2015-06-22 01:53:15.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/media/dvb-frontends/cx24116.c	2015-08-17 08:23:56.000000000 -0400
@@ -963,6 +963,10 @@ static int cx24116_send_diseqc_msg(struc
 	struct cx24116_state *state = fe->demodulator_priv;
 	int i, ret;
 
+	/* Validate length */
+	if (d->msg_len > sizeof(d->msg))
+                return -EINVAL;
+
 	/* Dump DiSEqC message */
 	if (debug) {
 		printk(KERN_INFO "cx24116: %s(", __func__);
@@ -974,10 +978,6 @@ static int cx24116_send_diseqc_msg(struc
 		printk(") toneburst=%d\n", toneburst);
 	}
 
-	/* Validate length */
-	if (d->msg_len > (CX24116_ARGLEN - CX24116_DISEQC_MSGOFS))
-		return -EINVAL;
-
 	/* DiSEqC message */
 	for (i = 0; i < d->msg_len; i++)
 		state->dsec_cmd.args[CX24116_DISEQC_MSGOFS + i] = d->msg[i];
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/media/dvb-frontends/cx24117.c linux-libre-4.1.6-gnu/drivers/media/dvb-frontends/cx24117.c
--- linux-libre-4.1-gnu/drivers/media/dvb-frontends/cx24117.c	2015-06-22 01:53:18.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/media/dvb-frontends/cx24117.c	2015-08-17 08:23:59.000000000 -0400
@@ -1043,7 +1043,7 @@ static int cx24117_send_diseqc_msg(struc
 	dev_dbg(&state->priv->i2c->dev, ")\n");
 
 	/* Validate length */
-	if (d->msg_len > 15)
+	if (d->msg_len > sizeof(d->msg))
 		return -EINVAL;
 
 	/* DiSEqC message */
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/media/dvb-frontends/s5h1420.c linux-libre-4.1.6-gnu/drivers/media/dvb-frontends/s5h1420.c
--- linux-libre-4.1-gnu/drivers/media/dvb-frontends/s5h1420.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/media/dvb-frontends/s5h1420.c	2015-08-16 23:52:51.000000000 -0400
@@ -180,7 +180,7 @@ static int s5h1420_send_master_cmd (stru
 	int result = 0;
 
 	dprintk("enter %s\n", __func__);
-	if (cmd->msg_len > 8)
+	if (cmd->msg_len > sizeof(cmd->msg))
 		return -EINVAL;
 
 	/* setup for DISEQC */
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/media/pci/cx18/cx18-streams.c linux-libre-4.1.6-gnu/drivers/media/pci/cx18/cx18-streams.c
--- linux-libre-4.1-gnu/drivers/media/pci/cx18/cx18-streams.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/media/pci/cx18/cx18-streams.c	2015-08-16 23:52:51.000000000 -0400
@@ -90,6 +90,7 @@ static struct {
 		"encoder PCM audio",
 		VFL_TYPE_GRABBER, CX18_V4L2_ENC_PCM_OFFSET,
 		PCI_DMA_FROMDEVICE,
+		V4L2_CAP_TUNER | V4L2_CAP_AUDIO | V4L2_CAP_READWRITE,
 	},
 	{	/* CX18_ENC_STREAM_TYPE_IDX */
 		"encoder IDX",
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/media/pci/saa7164/saa7164-encoder.c linux-libre-4.1.6-gnu/drivers/media/pci/saa7164/saa7164-encoder.c
--- linux-libre-4.1-gnu/drivers/media/pci/saa7164/saa7164-encoder.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/media/pci/saa7164/saa7164-encoder.c	2015-08-16 23:52:51.000000000 -0400
@@ -721,13 +721,14 @@ static int vidioc_querycap(struct file *
 		sizeof(cap->card));
 	sprintf(cap->bus_info, "PCI:%s", pci_name(dev->pci));
 
-	cap->capabilities =
+	cap->device_caps =
 		V4L2_CAP_VIDEO_CAPTURE |
-		V4L2_CAP_READWRITE     |
-		0;
+		V4L2_CAP_READWRITE |
+		V4L2_CAP_TUNER;
 
-	cap->capabilities |= V4L2_CAP_TUNER;
-	cap->version = 0;
+	cap->capabilities = cap->device_caps |
+		V4L2_CAP_VBI_CAPTURE |
+		V4L2_CAP_DEVICE_CAPS;
 
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/media/pci/saa7164/saa7164-vbi.c linux-libre-4.1.6-gnu/drivers/media/pci/saa7164/saa7164-vbi.c
--- linux-libre-4.1-gnu/drivers/media/pci/saa7164/saa7164-vbi.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/media/pci/saa7164/saa7164-vbi.c	2015-08-16 23:52:51.000000000 -0400
@@ -660,13 +660,14 @@ static int vidioc_querycap(struct file *
 		sizeof(cap->card));
 	sprintf(cap->bus_info, "PCI:%s", pci_name(dev->pci));
 
-	cap->capabilities =
+	cap->device_caps =
 		V4L2_CAP_VBI_CAPTURE |
-		V4L2_CAP_READWRITE     |
-		0;
+		V4L2_CAP_READWRITE |
+		V4L2_CAP_TUNER;
 
-	cap->capabilities |= V4L2_CAP_TUNER;
-	cap->version = 0;
+	cap->capabilities = cap->device_caps |
+		V4L2_CAP_VIDEO_CAPTURE |
+		V4L2_CAP_DEVICE_CAPS;
 
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/media/usb/dvb-usb/dib0700_core.c linux-libre-4.1.6-gnu/drivers/media/usb/dvb-usb/dib0700_core.c
--- linux-libre-4.1-gnu/drivers/media/usb/dvb-usb/dib0700_core.c	2015-06-22 01:52:27.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/media/usb/dvb-usb/dib0700_core.c	2015-08-17 08:23:07.000000000 -0400
@@ -655,10 +655,20 @@ out:
 struct dib0700_rc_response {
 	u8 report_id;
 	u8 data_state;
-	u8 system;
-	u8 not_system;
-	u8 data;
-	u8 not_data;
+	union {
+		struct {
+			u8 system;
+			u8 not_system;
+			u8 data;
+			u8 not_data;
+		} nec;
+		struct {
+			u8 not_used;
+			u8 system;
+			u8 data;
+			u8 not_data;
+		} rc5;
+	};
 };
 #define RC_MSG_SIZE_V1_20 6
 
@@ -694,8 +704,8 @@ static void dib0700_rc_urb_completion(st
 
 	deb_data("IR ID = %02X state = %02X System = %02X %02X Cmd = %02X %02X (len %d)\n",
 		 poll_reply->report_id, poll_reply->data_state,
-		 poll_reply->system, poll_reply->not_system,
-		 poll_reply->data, poll_reply->not_data,
+		 poll_reply->nec.system, poll_reply->nec.not_system,
+		 poll_reply->nec.data, poll_reply->nec.not_data,
 		 purb->actual_length);
 
 	switch (d->props.rc.core.protocol) {
@@ -704,30 +714,30 @@ static void dib0700_rc_urb_completion(st
 		toggle = 0;
 
 		/* NEC protocol sends repeat code as 0 0 0 FF */
-		if (poll_reply->system     == 0x00 &&
-		    poll_reply->not_system == 0x00 &&
-		    poll_reply->data       == 0x00 &&
-		    poll_reply->not_data   == 0xff) {
+		if (poll_reply->nec.system     == 0x00 &&
+		    poll_reply->nec.not_system == 0x00 &&
+		    poll_reply->nec.data       == 0x00 &&
+		    poll_reply->nec.not_data   == 0xff) {
 			poll_reply->data_state = 2;
 			break;
 		}
 
-		if ((poll_reply->data ^ poll_reply->not_data) != 0xff) {
+		if ((poll_reply->nec.data ^ poll_reply->nec.not_data) != 0xff) {
 			deb_data("NEC32 protocol\n");
-			keycode = RC_SCANCODE_NEC32(poll_reply->system     << 24 |
-						     poll_reply->not_system << 16 |
-						     poll_reply->data       << 8  |
-						     poll_reply->not_data);
-		} else if ((poll_reply->system ^ poll_reply->not_system) != 0xff) {
+			keycode = RC_SCANCODE_NEC32(poll_reply->nec.system     << 24 |
+						     poll_reply->nec.not_system << 16 |
+						     poll_reply->nec.data       << 8  |
+						     poll_reply->nec.not_data);
+		} else if ((poll_reply->nec.system ^ poll_reply->nec.not_system) != 0xff) {
 			deb_data("NEC extended protocol\n");
-			keycode = RC_SCANCODE_NECX(poll_reply->system << 8 |
-						    poll_reply->not_system,
-						    poll_reply->data);
+			keycode = RC_SCANCODE_NECX(poll_reply->nec.system << 8 |
+						    poll_reply->nec.not_system,
+						    poll_reply->nec.data);
 
 		} else {
 			deb_data("NEC normal protocol\n");
-			keycode = RC_SCANCODE_NEC(poll_reply->system,
-						   poll_reply->data);
+			keycode = RC_SCANCODE_NEC(poll_reply->nec.system,
+						   poll_reply->nec.data);
 		}
 
 		break;
@@ -735,17 +745,17 @@ static void dib0700_rc_urb_completion(st
 		deb_data("RC5 protocol\n");
 		protocol = RC_TYPE_RC5;
 		toggle = poll_reply->report_id;
-		keycode = RC_SCANCODE_RC5(poll_reply->system, poll_reply->data);
+		keycode = RC_SCANCODE_RC5(poll_reply->rc5.system, poll_reply->rc5.data);
 
-		break;
-	}
+		if ((poll_reply->rc5.data ^ poll_reply->rc5.not_data) != 0xff) {
+			/* Key failed integrity check */
+			err("key failed integrity check: %02x %02x %02x %02x",
+			    poll_reply->rc5.not_used, poll_reply->rc5.system,
+			    poll_reply->rc5.data, poll_reply->rc5.not_data);
+			goto resubmit;
+		}
 
-	if ((poll_reply->data + poll_reply->not_data) != 0xff) {
-		/* Key failed integrity check */
-		err("key failed integrity check: %02x %02x %02x %02x",
-		    poll_reply->system,  poll_reply->not_system,
-		    poll_reply->data, poll_reply->not_data);
-		goto resubmit;
+		break;
 	}
 
 	rc_keydown(d->rc_dev, protocol, keycode, toggle);
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/media/usb/dvb-usb/dib0700_devices.c linux-libre-4.1.6-gnu/drivers/media/usb/dvb-usb/dib0700_devices.c
--- linux-libre-4.1-gnu/drivers/media/usb/dvb-usb/dib0700_devices.c	2015-06-22 01:52:22.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/media/usb/dvb-usb/dib0700_devices.c	2015-08-17 08:23:04.000000000 -0400
@@ -3944,6 +3944,8 @@ struct dvb_usb_device_properties dib0700
 
 				DIB0700_DEFAULT_STREAMING_CONFIG(0x02),
 			}},
+				.size_of_priv = sizeof(struct
+						dib0700_adapter_state),
 			}, {
 			.num_frontends = 1,
 			.fe = {{
@@ -3956,6 +3958,8 @@ struct dvb_usb_device_properties dib0700
 
 				DIB0700_DEFAULT_STREAMING_CONFIG(0x03),
 			}},
+				.size_of_priv = sizeof(struct
+						dib0700_adapter_state),
 			}
 		},
 
@@ -4009,6 +4013,8 @@ struct dvb_usb_device_properties dib0700
 
 				DIB0700_DEFAULT_STREAMING_CONFIG(0x02),
 			}},
+				.size_of_priv = sizeof(struct
+						dib0700_adapter_state),
 			},
 		},
 
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/media/v4l2-core/videobuf2-core.c linux-libre-4.1.6-gnu/drivers/media/v4l2-core/videobuf2-core.c
--- linux-libre-4.1-gnu/drivers/media/v4l2-core/videobuf2-core.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/media/v4l2-core/videobuf2-core.c	2015-08-16 23:52:51.000000000 -0400
@@ -1237,6 +1237,23 @@ void vb2_discard_done(struct vb2_queue *
 }
 EXPORT_SYMBOL_GPL(vb2_discard_done);
 
+static void vb2_warn_zero_bytesused(struct vb2_buffer *vb)
+{
+	static bool __check_once __read_mostly;
+
+	if (__check_once)
+		return;
+
+	__check_once = true;
+	__WARN();
+
+	pr_warn_once("use of bytesused == 0 is deprecated and will be removed in the future,\n");
+	if (vb->vb2_queue->allow_zero_bytesused)
+		pr_warn_once("use VIDIOC_DECODER_CMD(V4L2_DEC_CMD_STOP) instead.\n");
+	else
+		pr_warn_once("use the actual size instead.\n");
+}
+
 /**
  * __fill_vb2_buffer() - fill a vb2_buffer with information provided in a
  * v4l2_buffer by the userspace. The caller has already verified that struct
@@ -1247,16 +1264,6 @@ static void __fill_vb2_buffer(struct vb2
 {
 	unsigned int plane;
 
-	if (V4L2_TYPE_IS_OUTPUT(b->type)) {
-		if (WARN_ON_ONCE(b->bytesused == 0)) {
-			pr_warn_once("use of bytesused == 0 is deprecated and will be removed in the future,\n");
-			if (vb->vb2_queue->allow_zero_bytesused)
-				pr_warn_once("use VIDIOC_DECODER_CMD(V4L2_DEC_CMD_STOP) instead.\n");
-			else
-				pr_warn_once("use the actual size instead.\n");
-		}
-	}
-
 	if (V4L2_TYPE_IS_MULTIPLANAR(b->type)) {
 		if (b->memory == V4L2_MEMORY_USERPTR) {
 			for (plane = 0; plane < vb->num_planes; ++plane) {
@@ -1297,6 +1304,9 @@ static void __fill_vb2_buffer(struct vb2
 				struct v4l2_plane *pdst = &v4l2_planes[plane];
 				struct v4l2_plane *psrc = &b->m.planes[plane];
 
+				if (psrc->bytesused == 0)
+					vb2_warn_zero_bytesused(vb);
+
 				if (vb->vb2_queue->allow_zero_bytesused)
 					pdst->bytesused = psrc->bytesused;
 				else
@@ -1331,6 +1341,9 @@ static void __fill_vb2_buffer(struct vb2
 		}
 
 		if (V4L2_TYPE_IS_OUTPUT(b->type)) {
+			if (b->bytesused == 0)
+				vb2_warn_zero_bytesused(vb);
+
 			if (vb->vb2_queue->allow_zero_bytesused)
 				v4l2_planes[0].bytesused = b->bytesused;
 			else
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/misc/cxl/context.c linux-libre-4.1.6-gnu/drivers/misc/cxl/context.c
--- linux-libre-4.1-gnu/drivers/misc/cxl/context.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/misc/cxl/context.c	2015-08-16 23:52:51.000000000 -0400
@@ -113,11 +113,11 @@ static int cxl_mmap_fault(struct vm_area
 
 	if (ctx->afu->current_mode == CXL_MODE_DEDICATED) {
 		area = ctx->afu->psn_phys;
-		if (offset > ctx->afu->adapter->ps_size)
+		if (offset >= ctx->afu->adapter->ps_size)
 			return VM_FAULT_SIGBUS;
 	} else {
 		area = ctx->psn_phys;
-		if (offset > ctx->psn_size)
+		if (offset >= ctx->psn_size)
 			return VM_FAULT_SIGBUS;
 	}
 
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/misc/cxl/main.c linux-libre-4.1.6-gnu/drivers/misc/cxl/main.c
--- linux-libre-4.1-gnu/drivers/misc/cxl/main.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/misc/cxl/main.c	2015-08-16 23:52:51.000000000 -0400
@@ -73,7 +73,7 @@ static inline void cxl_slbia_core(struct
 		spin_lock(&adapter->afu_list_lock);
 		for (slice = 0; slice < adapter->slices; slice++) {
 			afu = adapter->afu[slice];
-			if (!afu->enabled)
+			if (!afu || !afu->enabled)
 				continue;
 			rcu_read_lock();
 			idr_for_each_entry(&afu->contexts_idr, ctx, id)
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/misc/mei/client.c linux-libre-4.1.6-gnu/drivers/misc/mei/client.c
--- linux-libre-4.1-gnu/drivers/misc/mei/client.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/misc/mei/client.c	2015-08-16 23:52:51.000000000 -0400
@@ -699,7 +699,7 @@ void mei_host_client_init(struct work_st
 bool mei_hbuf_acquire(struct mei_device *dev)
 {
 	if (mei_pg_state(dev) == MEI_PG_ON ||
-	    dev->pg_event == MEI_PG_EVENT_WAIT) {
+	    mei_pg_in_transition(dev)) {
 		dev_dbg(dev->dev, "device is in pg\n");
 		return false;
 	}
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/misc/mei/hw-me.c linux-libre-4.1.6-gnu/drivers/misc/mei/hw-me.c
--- linux-libre-4.1-gnu/drivers/misc/mei/hw-me.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/misc/mei/hw-me.c	2015-08-16 23:52:51.000000000 -0400
@@ -663,11 +663,27 @@ int mei_me_pg_exit_sync(struct mei_devic
 	mutex_lock(&dev->device_lock);
 
 reply:
-	if (dev->pg_event == MEI_PG_EVENT_RECEIVED)
-		ret = mei_hbm_pg(dev, MEI_PG_ISOLATION_EXIT_RES_CMD);
+	if (dev->pg_event != MEI_PG_EVENT_RECEIVED) {
+		ret = -ETIME;
+		goto out;
+	}
+
+	dev->pg_event = MEI_PG_EVENT_INTR_WAIT;
+	ret = mei_hbm_pg(dev, MEI_PG_ISOLATION_EXIT_RES_CMD);
+	if (ret)
+		return ret;
+
+	mutex_unlock(&dev->device_lock);
+	wait_event_timeout(dev->wait_pg,
+		dev->pg_event == MEI_PG_EVENT_INTR_RECEIVED, timeout);
+	mutex_lock(&dev->device_lock);
+
+	if (dev->pg_event == MEI_PG_EVENT_INTR_RECEIVED)
+		ret = 0;
 	else
 		ret = -ETIME;
 
+out:
 	dev->pg_event = MEI_PG_EVENT_IDLE;
 	hw->pg_state = MEI_PG_OFF;
 
@@ -675,6 +691,19 @@ reply:
 }
 
 /**
+ * mei_me_pg_in_transition - is device now in pg transition
+ *
+ * @dev: the device structure
+ *
+ * Return: true if in pg transition, false otherwise
+ */
+static bool mei_me_pg_in_transition(struct mei_device *dev)
+{
+	return dev->pg_event >= MEI_PG_EVENT_WAIT &&
+	       dev->pg_event <= MEI_PG_EVENT_INTR_WAIT;
+}
+
+/**
  * mei_me_pg_is_enabled - detect if PG is supported by HW
  *
  * @dev: the device structure
@@ -705,6 +734,24 @@ notsupported:
 }
 
 /**
+ * mei_me_pg_intr - perform pg processing in interrupt thread handler
+ *
+ * @dev: the device structure
+ */
+static void mei_me_pg_intr(struct mei_device *dev)
+{
+	struct mei_me_hw *hw = to_me_hw(dev);
+
+	if (dev->pg_event != MEI_PG_EVENT_INTR_WAIT)
+		return;
+
+	dev->pg_event = MEI_PG_EVENT_INTR_RECEIVED;
+	hw->pg_state = MEI_PG_OFF;
+	if (waitqueue_active(&dev->wait_pg))
+		wake_up(&dev->wait_pg);
+}
+
+/**
  * mei_me_irq_quick_handler - The ISR of the MEI device
  *
  * @irq: The irq number
@@ -761,6 +808,8 @@ irqreturn_t mei_me_irq_thread_handler(in
 		goto end;
 	}
 
+	mei_me_pg_intr(dev);
+
 	/*  check if we need to start the dev */
 	if (!mei_host_is_ready(dev)) {
 		if (mei_hw_is_ready(dev)) {
@@ -797,9 +846,10 @@ irqreturn_t mei_me_irq_thread_handler(in
 	/*
 	 * During PG handshake only allowed write is the replay to the
 	 * PG exit message, so block calling write function
-	 * if the pg state is not idle
+	 * if the pg event is in PG handshake
 	 */
-	if (dev->pg_event == MEI_PG_EVENT_IDLE) {
+	if (dev->pg_event != MEI_PG_EVENT_WAIT &&
+	    dev->pg_event != MEI_PG_EVENT_RECEIVED) {
 		rets = mei_irq_write_handler(dev, &complete_list);
 		dev->hbuf_is_ready = mei_hbuf_is_ready(dev);
 	}
@@ -824,6 +874,7 @@ static const struct mei_hw_ops mei_me_hw
 	.hw_config = mei_me_hw_config,
 	.hw_start = mei_me_hw_start,
 
+	.pg_in_transition = mei_me_pg_in_transition,
 	.pg_is_enabled = mei_me_pg_is_enabled,
 
 	.intr_clear = mei_me_intr_clear,
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/misc/mei/hw-txe.c linux-libre-4.1.6-gnu/drivers/misc/mei/hw-txe.c
--- linux-libre-4.1-gnu/drivers/misc/mei/hw-txe.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/misc/mei/hw-txe.c	2015-08-16 23:52:51.000000000 -0400
@@ -16,6 +16,7 @@
 
 #include <linux/pci.h>
 #include <linux/jiffies.h>
+#include <linux/ktime.h>
 #include <linux/delay.h>
 #include <linux/kthread.h>
 #include <linux/irqreturn.h>
@@ -218,26 +219,25 @@ static u32 mei_txe_aliveness_get(struct
  *
  * Polls for HICR_HOST_ALIVENESS_RESP.ALIVENESS_RESP to be set
  *
- * Return: > 0 if the expected value was received, -ETIME otherwise
+ * Return: 0 if the expected value was received, -ETIME otherwise
  */
 static int mei_txe_aliveness_poll(struct mei_device *dev, u32 expected)
 {
 	struct mei_txe_hw *hw = to_txe_hw(dev);
-	int t = 0;
+	ktime_t stop, start;
 
+	start = ktime_get();
+	stop = ktime_add(start, ms_to_ktime(SEC_ALIVENESS_WAIT_TIMEOUT));
 	do {
 		hw->aliveness = mei_txe_aliveness_get(dev);
 		if (hw->aliveness == expected) {
 			dev->pg_event = MEI_PG_EVENT_IDLE;
-			dev_dbg(dev->dev,
-				"aliveness settled after %d msecs\n", t);
-			return t;
+			dev_dbg(dev->dev, "aliveness settled after %lld usecs\n",
+				ktime_to_us(ktime_sub(ktime_get(), start)));
+			return 0;
 		}
-		mutex_unlock(&dev->device_lock);
-		msleep(MSEC_PER_SEC / 5);
-		mutex_lock(&dev->device_lock);
-		t += MSEC_PER_SEC / 5;
-	} while (t < SEC_ALIVENESS_WAIT_TIMEOUT);
+		usleep_range(20, 50);
+	} while (ktime_before(ktime_get(), stop));
 
 	dev->pg_event = MEI_PG_EVENT_IDLE;
 	dev_err(dev->dev, "aliveness timed out\n");
@@ -302,6 +302,18 @@ int mei_txe_aliveness_set_sync(struct me
 }
 
 /**
+ * mei_txe_pg_in_transition - is device now in pg transition
+ *
+ * @dev: the device structure
+ *
+ * Return: true if in pg transition, false otherwise
+ */
+static bool mei_txe_pg_in_transition(struct mei_device *dev)
+{
+	return dev->pg_event == MEI_PG_EVENT_WAIT;
+}
+
+/**
  * mei_txe_pg_is_enabled - detect if PG is supported by HW
  *
  * @dev: the device structure
@@ -1138,6 +1150,7 @@ static const struct mei_hw_ops mei_txe_h
 	.hw_config = mei_txe_hw_config,
 	.hw_start = mei_txe_hw_start,
 
+	.pg_in_transition = mei_txe_pg_in_transition,
 	.pg_is_enabled = mei_txe_pg_is_enabled,
 
 	.intr_clear = mei_txe_intr_clear,
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/misc/mei/main.c linux-libre-4.1.6-gnu/drivers/misc/mei/main.c
--- linux-libre-4.1-gnu/drivers/misc/mei/main.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/misc/mei/main.c	2015-08-16 23:52:51.000000000 -0400
@@ -685,7 +685,7 @@ int mei_register(struct mei_device *dev,
 	/* Fill in the data structures */
 	devno = MKDEV(MAJOR(mei_devt), dev->minor);
 	cdev_init(&dev->cdev, &mei_fops);
-	dev->cdev.owner = mei_fops.owner;
+	dev->cdev.owner = parent->driver->owner;
 
 	/* Add the device */
 	ret = cdev_add(&dev->cdev, devno, 1);
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/misc/mei/mei_dev.h linux-libre-4.1.6-gnu/drivers/misc/mei/mei_dev.h
--- linux-libre-4.1-gnu/drivers/misc/mei/mei_dev.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/misc/mei/mei_dev.h	2015-08-16 23:52:51.000000000 -0400
@@ -271,6 +271,7 @@ struct mei_cl {
 
  * @fw_status        : get fw status registers
  * @pg_state         : power gating state of the device
+ * @pg_in_transition : is device now in pg transition
  * @pg_is_enabled    : is power gating enabled
 
  * @intr_clear       : clear pending interrupts
@@ -300,6 +301,7 @@ struct mei_hw_ops {
 
 	int (*fw_status)(struct mei_device *dev, struct mei_fw_status *fw_sts);
 	enum mei_pg_state (*pg_state)(struct mei_device *dev);
+	bool (*pg_in_transition)(struct mei_device *dev);
 	bool (*pg_is_enabled)(struct mei_device *dev);
 
 	void (*intr_clear)(struct mei_device *dev);
@@ -398,11 +400,15 @@ struct mei_cl_device {
  * @MEI_PG_EVENT_IDLE: the driver is not in power gating transition
  * @MEI_PG_EVENT_WAIT: the driver is waiting for a pg event to complete
  * @MEI_PG_EVENT_RECEIVED: the driver received pg event
+ * @MEI_PG_EVENT_INTR_WAIT: the driver is waiting for a pg event interrupt
+ * @MEI_PG_EVENT_INTR_RECEIVED: the driver received pg event interrupt
  */
 enum mei_pg_event {
 	MEI_PG_EVENT_IDLE,
 	MEI_PG_EVENT_WAIT,
 	MEI_PG_EVENT_RECEIVED,
+	MEI_PG_EVENT_INTR_WAIT,
+	MEI_PG_EVENT_INTR_RECEIVED,
 };
 
 /**
@@ -717,6 +723,11 @@ static inline enum mei_pg_state mei_pg_s
 	return dev->ops->pg_state(dev);
 }
 
+static inline bool mei_pg_in_transition(struct mei_device *dev)
+{
+	return dev->ops->pg_in_transition(dev);
+}
+
 static inline bool mei_pg_is_enabled(struct mei_device *dev)
 {
 	return dev->ops->pg_is_enabled(dev);
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/mmc/card/block.c linux-libre-4.1.6-gnu/drivers/mmc/card/block.c
--- linux-libre-4.1-gnu/drivers/mmc/card/block.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/mmc/card/block.c	2015-08-16 23:52:51.000000000 -0400
@@ -208,6 +208,8 @@ static ssize_t power_ro_lock_show(struct
 
 	ret = snprintf(buf, PAGE_SIZE, "%d\n", locked);
 
+	mmc_blk_put(md);
+
 	return ret;
 }
 
@@ -1910,9 +1912,11 @@ static int mmc_blk_issue_rw_rq(struct mm
 			break;
 		case MMC_BLK_CMD_ERR:
 			ret = mmc_blk_cmd_err(md, card, brq, req, ret);
-			if (!mmc_blk_reset(md, card->host, type))
-				break;
-			goto cmd_abort;
+			if (mmc_blk_reset(md, card->host, type))
+				goto cmd_abort;
+			if (!ret)
+				goto start_new_req;
+			break;
 		case MMC_BLK_RETRY:
 			if (retry++ < 5)
 				break;
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/mmc/host/omap_hsmmc.c linux-libre-4.1.6-gnu/drivers/mmc/host/omap_hsmmc.c
--- linux-libre-4.1-gnu/drivers/mmc/host/omap_hsmmc.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/mmc/host/omap_hsmmc.c	2015-08-16 23:52:51.000000000 -0400
@@ -1062,6 +1062,10 @@ static void omap_hsmmc_do_irq(struct oma
 
 		if (status & (CTO_EN | CCRC_EN))
 			end_cmd = 1;
+		if (host->data || host->response_busy) {
+			end_trans = !end_cmd;
+			host->response_busy = 0;
+		}
 		if (status & (CTO_EN | DTO_EN))
 			hsmmc_command_incomplete(host, -ETIMEDOUT, end_cmd);
 		else if (status & (CCRC_EN | DCRC_EN))
@@ -1081,10 +1085,6 @@ static void omap_hsmmc_do_irq(struct oma
 			}
 			dev_dbg(mmc_dev(host->mmc), "AC12 err: 0x%x\n", ac12);
 		}
-		if (host->data || host->response_busy) {
-			end_trans = !end_cmd;
-			host->response_busy = 0;
-		}
 	}
 
 	OMAP_HSMMC_WRITE(host->base, STAT, status);
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/mmc/host/sdhci.c linux-libre-4.1.6-gnu/drivers/mmc/host/sdhci.c
--- linux-libre-4.1-gnu/drivers/mmc/host/sdhci.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/mmc/host/sdhci.c	2015-08-16 23:52:51.000000000 -0400
@@ -848,7 +848,7 @@ static void sdhci_prepare_data(struct sd
 			int sg_cnt;
 
 			sg_cnt = sdhci_pre_dma_transfer(host, data, NULL);
-			if (sg_cnt == 0) {
+			if (sg_cnt <= 0) {
 				/*
 				 * This only happens when someone fed
 				 * us an invalid request.
@@ -3037,8 +3037,11 @@ int sdhci_add_host(struct sdhci_host *ho
 						      GFP_KERNEL);
 		host->align_buffer = kmalloc(host->align_buffer_sz, GFP_KERNEL);
 		if (!host->adma_table || !host->align_buffer) {
-			dma_free_coherent(mmc_dev(mmc), host->adma_table_sz,
-					  host->adma_table, host->adma_addr);
+			if (host->adma_table)
+				dma_free_coherent(mmc_dev(mmc),
+						  host->adma_table_sz,
+						  host->adma_table,
+						  host->adma_addr);
 			kfree(host->align_buffer);
 			pr_warn("%s: Unable to allocate ADMA buffers - falling back to standard DMA\n",
 				mmc_hostname(mmc));
@@ -3315,13 +3318,14 @@ int sdhci_add_host(struct sdhci_host *ho
 				   SDHCI_MAX_CURRENT_MULTIPLIER;
 	}
 
-	/* If OCR set by external regulators, use it instead */
+	/* If OCR set by host, use it instead. */
+	if (host->ocr_mask)
+		ocr_avail = host->ocr_mask;
+
+	/* If OCR set by external regulators, give it highest prio. */
 	if (mmc->ocr_avail)
 		ocr_avail = mmc->ocr_avail;
 
-	if (host->ocr_mask)
-		ocr_avail &= host->ocr_mask;
-
 	mmc->ocr_avail = ocr_avail;
 	mmc->ocr_avail_sdio = ocr_avail;
 	if (host->ocr_avail_sdio)
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/mmc/host/sdhci-esdhc.h linux-libre-4.1.6-gnu/drivers/mmc/host/sdhci-esdhc.h
--- linux-libre-4.1-gnu/drivers/mmc/host/sdhci-esdhc.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/mmc/host/sdhci-esdhc.h	2015-08-16 23:52:51.000000000 -0400
@@ -45,6 +45,6 @@
 #define ESDHC_DMA_SYSCTL	0x40c
 #define ESDHC_DMA_SNOOP		0x00000040
 
-#define ESDHC_HOST_CONTROL_RES	0x05
+#define ESDHC_HOST_CONTROL_RES	0x01
 
 #endif /* _DRIVERS_MMC_SDHCI_ESDHC_H */
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/mmc/host/sdhci-pxav3.c linux-libre-4.1.6-gnu/drivers/mmc/host/sdhci-pxav3.c
--- linux-libre-4.1-gnu/drivers/mmc/host/sdhci-pxav3.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/mmc/host/sdhci-pxav3.c	2015-08-16 23:52:51.000000000 -0400
@@ -411,6 +411,7 @@ static int sdhci_pxav3_probe(struct plat
 			goto err_of_parse;
 		sdhci_get_of_property(pdev);
 		pdata = pxav3_get_mmc_pdata(dev);
+		pdev->dev.platform_data = pdata;
 	} else if (pdata) {
 		/* on-chip device */
 		if (pdata->flags & PXA_FLAG_CARD_PERMANENT)
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/mtd/maps/dc21285.c linux-libre-4.1.6-gnu/drivers/mtd/maps/dc21285.c
--- linux-libre-4.1-gnu/drivers/mtd/maps/dc21285.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/mtd/maps/dc21285.c	2015-08-16 23:52:51.000000000 -0400
@@ -38,9 +38,9 @@ static void nw_en_write(void)
 	 * we want to write a bit pattern XXX1 to Xilinx to enable
 	 * the write gate, which will be open for about the next 2ms.
 	 */
-	spin_lock_irqsave(&nw_gpio_lock, flags);
+	raw_spin_lock_irqsave(&nw_gpio_lock, flags);
 	nw_cpld_modify(CPLD_FLASH_WR_ENABLE, CPLD_FLASH_WR_ENABLE);
-	spin_unlock_irqrestore(&nw_gpio_lock, flags);
+	raw_spin_unlock_irqrestore(&nw_gpio_lock, flags);
 
 	/*
 	 * let the ISA bus to catch on...
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/mtd/mtd_blkdevs.c linux-libre-4.1.6-gnu/drivers/mtd/mtd_blkdevs.c
--- linux-libre-4.1-gnu/drivers/mtd/mtd_blkdevs.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/mtd/mtd_blkdevs.c	2015-08-16 23:52:51.000000000 -0400
@@ -197,6 +197,7 @@ static int blktrans_open(struct block_de
 		return -ERESTARTSYS; /* FIXME: busy loop! -arnd*/
 
 	mutex_lock(&dev->lock);
+	mutex_lock(&mtd_table_mutex);
 
 	if (dev->open)
 		goto unlock;
@@ -220,6 +221,7 @@ static int blktrans_open(struct block_de
 
 unlock:
 	dev->open++;
+	mutex_unlock(&mtd_table_mutex);
 	mutex_unlock(&dev->lock);
 	blktrans_dev_put(dev);
 	return ret;
@@ -230,6 +232,7 @@ error_release:
 error_put:
 	module_put(dev->tr->owner);
 	kref_put(&dev->ref, blktrans_dev_release);
+	mutex_unlock(&mtd_table_mutex);
 	mutex_unlock(&dev->lock);
 	blktrans_dev_put(dev);
 	return ret;
@@ -243,6 +246,7 @@ static void blktrans_release(struct gend
 		return;
 
 	mutex_lock(&dev->lock);
+	mutex_lock(&mtd_table_mutex);
 
 	if (--dev->open)
 		goto unlock;
@@ -256,6 +260,7 @@ static void blktrans_release(struct gend
 		__put_mtd_device(dev->mtd);
 	}
 unlock:
+	mutex_unlock(&mtd_table_mutex);
 	mutex_unlock(&dev->lock);
 	blktrans_dev_put(dev);
 }
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/net/can/c_can/c_can.c linux-libre-4.1.6-gnu/drivers/net/can/c_can/c_can.c
--- linux-libre-4.1-gnu/drivers/net/can/c_can/c_can.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/net/can/c_can/c_can.c	2015-08-16 23:52:51.000000000 -0400
@@ -592,6 +592,7 @@ static int c_can_start(struct net_device
 {
 	struct c_can_priv *priv = netdev_priv(dev);
 	int err;
+	struct pinctrl *p;
 
 	/* basic c_can configuration */
 	err = c_can_chip_config(dev);
@@ -604,8 +605,13 @@ static int c_can_start(struct net_device
 
 	priv->can.state = CAN_STATE_ERROR_ACTIVE;
 
-	/* activate pins */
-	pinctrl_pm_select_default_state(dev->dev.parent);
+	/* Attempt to use "active" if available else use "default" */
+	p = pinctrl_get_select(priv->device, "active");
+	if (!IS_ERR(p))
+		pinctrl_put(p);
+	else
+		pinctrl_pm_select_default_state(priv->device);
+
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/net/can/dev.c linux-libre-4.1.6-gnu/drivers/net/can/dev.c
--- linux-libre-4.1-gnu/drivers/net/can/dev.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/net/can/dev.c	2015-08-16 23:52:51.000000000 -0400
@@ -585,6 +585,7 @@ struct sk_buff *alloc_can_skb(struct net
 
 	can_skb_reserve(skb);
 	can_skb_prv(skb)->ifindex = dev->ifindex;
+	can_skb_prv(skb)->skbcnt = 0;
 
 	*cf = (struct can_frame *)skb_put(skb, sizeof(struct can_frame));
 	memset(*cf, 0, sizeof(struct can_frame));
@@ -613,6 +614,7 @@ struct sk_buff *alloc_canfd_skb(struct n
 
 	can_skb_reserve(skb);
 	can_skb_prv(skb)->ifindex = dev->ifindex;
+	can_skb_prv(skb)->skbcnt = 0;
 
 	*cfd = (struct canfd_frame *)skb_put(skb, sizeof(struct canfd_frame));
 	memset(*cfd, 0, sizeof(struct canfd_frame));
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/net/can/rcar_can.c linux-libre-4.1.6-gnu/drivers/net/can/rcar_can.c
--- linux-libre-4.1-gnu/drivers/net/can/rcar_can.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/net/can/rcar_can.c	2015-08-16 23:52:51.000000000 -0400
@@ -526,7 +526,7 @@ static int rcar_can_open(struct net_devi
 	napi_enable(&priv->napi);
 	err = request_irq(ndev->irq, rcar_can_interrupt, 0, ndev->name, ndev);
 	if (err) {
-		netdev_err(ndev, "error requesting interrupt %x\n", ndev->irq);
+		netdev_err(ndev, "error requesting interrupt %d\n", ndev->irq);
 		goto out_close;
 	}
 	can_led_event(ndev, CAN_LED_EVENT_OPEN);
@@ -758,8 +758,9 @@ static int rcar_can_probe(struct platfor
 	}
 
 	irq = platform_get_irq(pdev, 0);
-	if (!irq) {
+	if (irq < 0) {
 		dev_err(&pdev->dev, "No IRQ resource\n");
+		err = irq;
 		goto fail;
 	}
 
@@ -823,7 +824,7 @@ static int rcar_can_probe(struct platfor
 
 	devm_can_led_init(ndev);
 
-	dev_info(&pdev->dev, "device registered (reg_base=%p, irq=%u)\n",
+	dev_info(&pdev->dev, "device registered (regs @ %p, IRQ%d)\n",
 		 priv->regs, ndev->irq);
 
 	return 0;
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/net/can/slcan.c linux-libre-4.1.6-gnu/drivers/net/can/slcan.c
--- linux-libre-4.1-gnu/drivers/net/can/slcan.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/net/can/slcan.c	2015-08-16 23:52:51.000000000 -0400
@@ -214,6 +214,7 @@ static void slc_bump(struct slcan *sl)
 
 	can_skb_reserve(skb);
 	can_skb_prv(skb)->ifindex = sl->dev->ifindex;
+	can_skb_prv(skb)->skbcnt = 0;
 
 	memcpy(skb_put(skb, sizeof(struct can_frame)),
 	       &cf, sizeof(struct can_frame));
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/net/can/spi/mcp251x.c linux-libre-4.1.6-gnu/drivers/net/can/spi/mcp251x.c
--- linux-libre-4.1-gnu/drivers/net/can/spi/mcp251x.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/net/can/spi/mcp251x.c	2015-08-16 23:52:51.000000000 -0400
@@ -1221,17 +1221,16 @@ static int __maybe_unused mcp251x_can_re
 	struct spi_device *spi = to_spi_device(dev);
 	struct mcp251x_priv *priv = spi_get_drvdata(spi);
 
-	if (priv->after_suspend & AFTER_SUSPEND_POWER) {
+	if (priv->after_suspend & AFTER_SUSPEND_POWER)
 		mcp251x_power_enable(priv->power, 1);
+
+	if (priv->after_suspend & AFTER_SUSPEND_UP) {
+		mcp251x_power_enable(priv->transceiver, 1);
 		queue_work(priv->wq, &priv->restart_work);
 	} else {
-		if (priv->after_suspend & AFTER_SUSPEND_UP) {
-			mcp251x_power_enable(priv->transceiver, 1);
-			queue_work(priv->wq, &priv->restart_work);
-		} else {
-			priv->after_suspend = 0;
-		}
+		priv->after_suspend = 0;
 	}
+
 	priv->force_quit = 0;
 	enable_irq(spi->irq);
 	return 0;
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/net/ethernet/amd/xgbe/xgbe-desc.c linux-libre-4.1.6-gnu/drivers/net/ethernet/amd/xgbe/xgbe-desc.c
--- linux-libre-4.1-gnu/drivers/net/ethernet/amd/xgbe/xgbe-desc.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/net/ethernet/amd/xgbe/xgbe-desc.c	2015-08-16 23:52:51.000000000 -0400
@@ -263,7 +263,7 @@ static int xgbe_alloc_pages(struct xgbe_
 	int ret;
 
 	/* Try to obtain pages, decreasing order if necessary */
-	gfp |= __GFP_COLD | __GFP_COMP;
+	gfp |= __GFP_COLD | __GFP_COMP | __GFP_NOWARN;
 	while (order >= 0) {
 		pages = alloc_pages(gfp, order);
 		if (pages)
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c linux-libre-4.1.6-gnu/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
--- linux-libre-4.1-gnu/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c	2015-06-22 01:57:06.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c	2015-08-17 08:27:55.000000000 -0400
@@ -9317,7 +9317,8 @@ unload_error:
 	 * function stop ramrod is sent, since as part of this ramrod FW access
 	 * PTP registers.
 	 */
-	bnx2x_stop_ptp(bp);
+	if (bp->flags & PTP_SUPPORTED)
+		bnx2x_stop_ptp(bp);
 
 	/* Disable HW interrupts, NAPI */
 	bnx2x_netif_stop(bp, 1);
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/net/ethernet/intel/e1000e/82571.c linux-libre-4.1.6-gnu/drivers/net/ethernet/intel/e1000e/82571.c
--- linux-libre-4.1-gnu/drivers/net/ethernet/intel/e1000e/82571.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/net/ethernet/intel/e1000e/82571.c	2015-08-16 23:52:51.000000000 -0400
@@ -2010,7 +2010,7 @@ const struct e1000_info e1000_82573_info
 	.flags2			= FLAG2_DISABLE_ASPM_L1
 				  | FLAG2_DISABLE_ASPM_L0S,
 	.pba			= 20,
-	.max_hw_frame_size	= ETH_FRAME_LEN + ETH_FCS_LEN,
+	.max_hw_frame_size	= VLAN_ETH_FRAME_LEN + ETH_FCS_LEN,
 	.get_variants		= e1000_get_variants_82571,
 	.mac_ops		= &e82571_mac_ops,
 	.phy_ops		= &e82_phy_ops_m88,
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/net/ethernet/intel/e1000e/ich8lan.c linux-libre-4.1.6-gnu/drivers/net/ethernet/intel/e1000e/ich8lan.c
--- linux-libre-4.1-gnu/drivers/net/ethernet/intel/e1000e/ich8lan.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/net/ethernet/intel/e1000e/ich8lan.c	2015-08-16 23:52:51.000000000 -0400
@@ -1563,7 +1563,7 @@ static s32 e1000_get_variants_ich8lan(st
 	    ((adapter->hw.mac.type >= e1000_pch2lan) &&
 	     (!(er32(CTRL_EXT) & E1000_CTRL_EXT_LSECCK)))) {
 		adapter->flags &= ~FLAG_HAS_JUMBO_FRAMES;
-		adapter->max_hw_frame_size = ETH_FRAME_LEN + ETH_FCS_LEN;
+		adapter->max_hw_frame_size = VLAN_ETH_FRAME_LEN + ETH_FCS_LEN;
 
 		hw->mac.ops.blink_led = NULL;
 	}
@@ -5681,7 +5681,7 @@ const struct e1000_info e1000_ich8_info
 				  | FLAG_HAS_FLASH
 				  | FLAG_APME_IN_WUC,
 	.pba			= 8,
-	.max_hw_frame_size	= ETH_FRAME_LEN + ETH_FCS_LEN,
+	.max_hw_frame_size	= VLAN_ETH_FRAME_LEN + ETH_FCS_LEN,
 	.get_variants		= e1000_get_variants_ich8lan,
 	.mac_ops		= &ich8_mac_ops,
 	.phy_ops		= &ich8_phy_ops,
@@ -5754,7 +5754,7 @@ const struct e1000_info e1000_pch2_info
 	.flags2			= FLAG2_HAS_PHY_STATS
 				  | FLAG2_HAS_EEE,
 	.pba			= 26,
-	.max_hw_frame_size	= 9018,
+	.max_hw_frame_size	= 9022,
 	.get_variants		= e1000_get_variants_ich8lan,
 	.mac_ops		= &ich8_mac_ops,
 	.phy_ops		= &ich8_phy_ops,
@@ -5774,7 +5774,7 @@ const struct e1000_info e1000_pch_lpt_in
 	.flags2			= FLAG2_HAS_PHY_STATS
 				  | FLAG2_HAS_EEE,
 	.pba			= 26,
-	.max_hw_frame_size	= 9018,
+	.max_hw_frame_size	= 9022,
 	.get_variants		= e1000_get_variants_ich8lan,
 	.mac_ops		= &ich8_mac_ops,
 	.phy_ops		= &ich8_phy_ops,
@@ -5794,7 +5794,7 @@ const struct e1000_info e1000_pch_spt_in
 	.flags2			= FLAG2_HAS_PHY_STATS
 				  | FLAG2_HAS_EEE,
 	.pba			= 26,
-	.max_hw_frame_size	= 9018,
+	.max_hw_frame_size	= 9022,
 	.get_variants		= e1000_get_variants_ich8lan,
 	.mac_ops		= &ich8_mac_ops,
 	.phy_ops		= &ich8_phy_ops,
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/net/ethernet/intel/e1000e/netdev.c linux-libre-4.1.6-gnu/drivers/net/ethernet/intel/e1000e/netdev.c
--- linux-libre-4.1-gnu/drivers/net/ethernet/intel/e1000e/netdev.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/net/ethernet/intel/e1000e/netdev.c	2015-08-16 23:52:51.000000000 -0400
@@ -3807,7 +3807,7 @@ void e1000e_reset(struct e1000_adapter *
 	/* reset Packet Buffer Allocation to default */
 	ew32(PBA, pba);
 
-	if (adapter->max_frame_size > ETH_FRAME_LEN + ETH_FCS_LEN) {
+	if (adapter->max_frame_size > (VLAN_ETH_FRAME_LEN + ETH_FCS_LEN)) {
 		/* To maintain wire speed transmits, the Tx FIFO should be
 		 * large enough to accommodate two full transmit packets,
 		 * rounded up to the next 1KB and expressed in KB.  Likewise,
@@ -4196,9 +4196,9 @@ static int e1000_sw_init(struct e1000_ad
 {
 	struct net_device *netdev = adapter->netdev;
 
-	adapter->rx_buffer_len = ETH_FRAME_LEN + VLAN_HLEN + ETH_FCS_LEN;
+	adapter->rx_buffer_len = VLAN_ETH_FRAME_LEN + ETH_FCS_LEN;
 	adapter->rx_ps_bsize0 = 128;
-	adapter->max_frame_size = netdev->mtu + ETH_HLEN + ETH_FCS_LEN;
+	adapter->max_frame_size = netdev->mtu + VLAN_ETH_HLEN + ETH_FCS_LEN;
 	adapter->min_frame_size = ETH_ZLEN + ETH_FCS_LEN;
 	adapter->tx_ring_count = E1000_DEFAULT_TXD;
 	adapter->rx_ring_count = E1000_DEFAULT_RXD;
@@ -5781,17 +5781,17 @@ struct rtnl_link_stats64 *e1000e_get_sta
 static int e1000_change_mtu(struct net_device *netdev, int new_mtu)
 {
 	struct e1000_adapter *adapter = netdev_priv(netdev);
-	int max_frame = new_mtu + VLAN_HLEN + ETH_HLEN + ETH_FCS_LEN;
+	int max_frame = new_mtu + VLAN_ETH_HLEN + ETH_FCS_LEN;
 
 	/* Jumbo frame support */
-	if ((max_frame > ETH_FRAME_LEN + ETH_FCS_LEN) &&
+	if ((max_frame > (VLAN_ETH_FRAME_LEN + ETH_FCS_LEN)) &&
 	    !(adapter->flags & FLAG_HAS_JUMBO_FRAMES)) {
 		e_err("Jumbo Frames not supported.\n");
 		return -EINVAL;
 	}
 
 	/* Supported frame sizes */
-	if ((new_mtu < ETH_ZLEN + ETH_FCS_LEN + VLAN_HLEN) ||
+	if ((new_mtu < (VLAN_ETH_ZLEN + ETH_FCS_LEN)) ||
 	    (max_frame > adapter->max_hw_frame_size)) {
 		e_err("Unsupported MTU setting\n");
 		return -EINVAL;
@@ -5831,10 +5831,8 @@ static int e1000_change_mtu(struct net_d
 		adapter->rx_buffer_len = 4096;
 
 	/* adjust allocation if LPE protects us, and we aren't using SBP */
-	if ((max_frame == ETH_FRAME_LEN + ETH_FCS_LEN) ||
-	    (max_frame == ETH_FRAME_LEN + VLAN_HLEN + ETH_FCS_LEN))
-		adapter->rx_buffer_len = ETH_FRAME_LEN + VLAN_HLEN
-		    + ETH_FCS_LEN;
+	if (max_frame <= (VLAN_ETH_FRAME_LEN + ETH_FCS_LEN))
+		adapter->rx_buffer_len = VLAN_ETH_FRAME_LEN + ETH_FCS_LEN;
 
 	if (netif_running(netdev))
 		e1000e_up(adapter);
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/net/ethernet/marvell/mvneta.c linux-libre-4.1.6-gnu/drivers/net/ethernet/marvell/mvneta.c
--- linux-libre-4.1-gnu/drivers/net/ethernet/marvell/mvneta.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/net/ethernet/marvell/mvneta.c	2015-08-16 23:52:51.000000000 -0400
@@ -310,6 +310,7 @@ struct mvneta_port {
 	unsigned int link;
 	unsigned int duplex;
 	unsigned int speed;
+	unsigned int tx_csum_limit;
 	int use_inband_status:1;
 };
 
@@ -1013,6 +1014,12 @@ static void mvneta_defaults_set(struct m
 		val = mvreg_read(pp, MVNETA_GMAC_CLOCK_DIVIDER);
 		val |= MVNETA_GMAC_1MS_CLOCK_ENABLE;
 		mvreg_write(pp, MVNETA_GMAC_CLOCK_DIVIDER, val);
+	} else {
+		val = mvreg_read(pp, MVNETA_GMAC_AUTONEG_CONFIG);
+		val &= ~(MVNETA_GMAC_INBAND_AN_ENABLE |
+		       MVNETA_GMAC_AN_SPEED_EN |
+		       MVNETA_GMAC_AN_DUPLEX_EN);
+		mvreg_write(pp, MVNETA_GMAC_AUTONEG_CONFIG, val);
 	}
 
 	mvneta_set_ucast_table(pp, -1);
@@ -2502,8 +2509,10 @@ static int mvneta_change_mtu(struct net_
 
 	dev->mtu = mtu;
 
-	if (!netif_running(dev))
+	if (!netif_running(dev)) {
+		netdev_update_features(dev);
 		return 0;
+	}
 
 	/* The interface is running, so we have to force a
 	 * reallocation of the queues
@@ -2532,9 +2541,26 @@ static int mvneta_change_mtu(struct net_
 	mvneta_start_dev(pp);
 	mvneta_port_up(pp);
 
+	netdev_update_features(dev);
+
 	return 0;
 }
 
+static netdev_features_t mvneta_fix_features(struct net_device *dev,
+					     netdev_features_t features)
+{
+	struct mvneta_port *pp = netdev_priv(dev);
+
+	if (pp->tx_csum_limit && dev->mtu > pp->tx_csum_limit) {
+		features &= ~(NETIF_F_IP_CSUM | NETIF_F_TSO);
+		netdev_info(dev,
+			    "Disable IP checksum for MTU greater than %dB\n",
+			    pp->tx_csum_limit);
+	}
+
+	return features;
+}
+
 /* Get mac address */
 static void mvneta_get_mac_addr(struct mvneta_port *pp, unsigned char *addr)
 {
@@ -2856,6 +2882,7 @@ static const struct net_device_ops mvnet
 	.ndo_set_rx_mode     = mvneta_set_rx_mode,
 	.ndo_set_mac_address = mvneta_set_mac_addr,
 	.ndo_change_mtu      = mvneta_change_mtu,
+	.ndo_fix_features    = mvneta_fix_features,
 	.ndo_get_stats64     = mvneta_get_stats64,
 	.ndo_do_ioctl        = mvneta_ioctl,
 };
@@ -3101,6 +3128,9 @@ static int mvneta_probe(struct platform_
 		}
 	}
 
+	if (of_device_is_compatible(dn, "marvell,armada-370-neta"))
+		pp->tx_csum_limit = 1600;
+
 	pp->tx_ring_size = MVNETA_MAX_TXD;
 	pp->rx_ring_size = MVNETA_MAX_RXD;
 
@@ -3179,6 +3209,7 @@ static int mvneta_remove(struct platform
 
 static const struct of_device_id mvneta_match[] = {
 	{ .compatible = "marvell,armada-370-neta" },
+	{ .compatible = "marvell,armada-xp-neta" },
 	{ }
 };
 MODULE_DEVICE_TABLE(of, mvneta_match);
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/net/ethernet/mellanox/mlx4/en_netdev.c linux-libre-4.1.6-gnu/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
--- linux-libre-4.1-gnu/drivers/net/ethernet/mellanox/mlx4/en_netdev.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/net/ethernet/mellanox/mlx4/en_netdev.c	2015-08-16 23:52:51.000000000 -0400
@@ -1973,10 +1973,6 @@ void mlx4_en_free_resources(struct mlx4_
 			mlx4_en_destroy_cq(priv, &priv->rx_cq[i]);
 	}
 
-	if (priv->base_tx_qpn) {
-		mlx4_qp_release_range(priv->mdev->dev, priv->base_tx_qpn, priv->tx_ring_num);
-		priv->base_tx_qpn = 0;
-	}
 }
 
 int mlx4_en_alloc_resources(struct mlx4_en_priv *priv)
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/net/ethernet/mellanox/mlx4/en_rx.c linux-libre-4.1.6-gnu/drivers/net/ethernet/mellanox/mlx4/en_rx.c
--- linux-libre-4.1-gnu/drivers/net/ethernet/mellanox/mlx4/en_rx.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/net/ethernet/mellanox/mlx4/en_rx.c	2015-08-16 23:52:51.000000000 -0400
@@ -723,7 +723,7 @@ static int get_fixed_ipv6_csum(__wsum hw
 }
 #endif
 static int check_csum(struct mlx4_cqe *cqe, struct sk_buff *skb, void *va,
-		      int hwtstamp_rx_filter)
+		      netdev_features_t dev_features)
 {
 	__wsum hw_checksum = 0;
 
@@ -731,14 +731,8 @@ static int check_csum(struct mlx4_cqe *c
 
 	hw_checksum = csum_unfold((__force __sum16)cqe->checksum);
 
-	if (((struct ethhdr *)va)->h_proto == htons(ETH_P_8021Q) &&
-	    hwtstamp_rx_filter != HWTSTAMP_FILTER_NONE) {
-		/* next protocol non IPv4 or IPv6 */
-		if (((struct vlan_hdr *)hdr)->h_vlan_encapsulated_proto
-		    != htons(ETH_P_IP) &&
-		    ((struct vlan_hdr *)hdr)->h_vlan_encapsulated_proto
-		    != htons(ETH_P_IPV6))
-			return -1;
+	if (cqe->vlan_my_qpn & cpu_to_be32(MLX4_CQE_VLAN_PRESENT_MASK) &&
+	    !(dev_features & NETIF_F_HW_VLAN_CTAG_RX)) {
 		hw_checksum = get_fixed_vlan_csum(hw_checksum, hdr);
 		hdr += sizeof(struct vlan_hdr);
 	}
@@ -901,7 +895,8 @@ int mlx4_en_process_rx_cq(struct net_dev
 
 			if (ip_summed == CHECKSUM_COMPLETE) {
 				void *va = skb_frag_address(skb_shinfo(gro_skb)->frags);
-				if (check_csum(cqe, gro_skb, va, ring->hwtstamp_rx_filter)) {
+				if (check_csum(cqe, gro_skb, va,
+					       dev->features)) {
 					ip_summed = CHECKSUM_NONE;
 					ring->csum_none++;
 					ring->csum_complete--;
@@ -956,7 +951,7 @@ int mlx4_en_process_rx_cq(struct net_dev
 		}
 
 		if (ip_summed == CHECKSUM_COMPLETE) {
-			if (check_csum(cqe, skb, skb->data, ring->hwtstamp_rx_filter)) {
+			if (check_csum(cqe, skb, skb->data, dev->features)) {
 				ip_summed = CHECKSUM_NONE;
 				ring->csum_complete--;
 				ring->csum_none++;
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/net/ethernet/mellanox/mlx4/en_tx.c linux-libre-4.1.6-gnu/drivers/net/ethernet/mellanox/mlx4/en_tx.c
--- linux-libre-4.1-gnu/drivers/net/ethernet/mellanox/mlx4/en_tx.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/net/ethernet/mellanox/mlx4/en_tx.c	2015-08-16 23:52:51.000000000 -0400
@@ -66,6 +66,7 @@ int mlx4_en_create_tx_ring(struct mlx4_e
 	ring->size = size;
 	ring->size_mask = size - 1;
 	ring->stride = stride;
+	ring->full_size = ring->size - HEADROOM - MAX_DESC_TXBBS;
 
 	tmp = size * sizeof(struct mlx4_en_tx_info);
 	ring->tx_info = kmalloc_node(tmp, GFP_KERNEL | __GFP_NOWARN, node);
@@ -180,6 +181,7 @@ void mlx4_en_destroy_tx_ring(struct mlx4
 		mlx4_bf_free(mdev->dev, &ring->bf);
 	mlx4_qp_remove(mdev->dev, &ring->qp);
 	mlx4_qp_free(mdev->dev, &ring->qp);
+	mlx4_qp_release_range(priv->mdev->dev, ring->qpn, 1);
 	mlx4_en_unmap_buffer(&ring->wqres.buf);
 	mlx4_free_hwq_res(mdev->dev, &ring->wqres, ring->buf_size);
 	kfree(ring->bounce_buf);
@@ -231,6 +233,11 @@ void mlx4_en_deactivate_tx_ring(struct m
 		       MLX4_QP_STATE_RST, NULL, 0, 0, &ring->qp);
 }
 
+static inline bool mlx4_en_is_tx_ring_full(struct mlx4_en_tx_ring *ring)
+{
+	return ring->prod - ring->cons > ring->full_size;
+}
+
 static void mlx4_en_stamp_wqe(struct mlx4_en_priv *priv,
 			      struct mlx4_en_tx_ring *ring, int index,
 			      u8 owner)
@@ -473,11 +480,10 @@ static bool mlx4_en_process_tx_cq(struct
 
 	netdev_tx_completed_queue(ring->tx_queue, packets, bytes);
 
-	/*
-	 * Wakeup Tx queue if this stopped, and at least 1 packet
-	 * was completed
+	/* Wakeup Tx queue if this stopped, and ring is not full.
 	 */
-	if (netif_tx_queue_stopped(ring->tx_queue) && txbbs_skipped > 0) {
+	if (netif_tx_queue_stopped(ring->tx_queue) &&
+	    !mlx4_en_is_tx_ring_full(ring)) {
 		netif_tx_wake_queue(ring->tx_queue);
 		ring->wake_queue++;
 	}
@@ -921,8 +927,7 @@ netdev_tx_t mlx4_en_xmit(struct sk_buff
 	skb_tx_timestamp(skb);
 
 	/* Check available TXBBs And 2K spare for prefetch */
-	stop_queue = (int)(ring->prod - ring_cons) >
-		      ring->size - HEADROOM - MAX_DESC_TXBBS;
+	stop_queue = mlx4_en_is_tx_ring_full(ring);
 	if (unlikely(stop_queue)) {
 		netif_tx_stop_queue(ring->tx_queue);
 		ring->queue_stopped++;
@@ -991,8 +996,7 @@ netdev_tx_t mlx4_en_xmit(struct sk_buff
 		smp_rmb();
 
 		ring_cons = ACCESS_ONCE(ring->cons);
-		if (unlikely(((int)(ring->prod - ring_cons)) <=
-			     ring->size - HEADROOM - MAX_DESC_TXBBS)) {
+		if (unlikely(!mlx4_en_is_tx_ring_full(ring))) {
 			netif_tx_wake_queue(ring->tx_queue);
 			ring->wake_queue++;
 		}
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/net/ethernet/mellanox/mlx4/intf.c linux-libre-4.1.6-gnu/drivers/net/ethernet/mellanox/mlx4/intf.c
--- linux-libre-4.1-gnu/drivers/net/ethernet/mellanox/mlx4/intf.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/net/ethernet/mellanox/mlx4/intf.c	2015-08-16 23:52:51.000000000 -0400
@@ -93,8 +93,14 @@ int mlx4_register_interface(struct mlx4_
 	mutex_lock(&intf_mutex);
 
 	list_add_tail(&intf->list, &intf_list);
-	list_for_each_entry(priv, &dev_list, dev_list)
+	list_for_each_entry(priv, &dev_list, dev_list) {
+		if (mlx4_is_mfunc(&priv->dev) && (intf->flags & MLX4_INTFF_BONDING)) {
+			mlx4_dbg(&priv->dev,
+				 "SRIOV, disabling HA mode for intf proto %d\n", intf->protocol);
+			intf->flags &= ~MLX4_INTFF_BONDING;
+		}
 		mlx4_add_device(intf, priv);
+	}
 
 	mutex_unlock(&intf_mutex);
 
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h linux-libre-4.1.6-gnu/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
--- linux-libre-4.1-gnu/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h	2015-08-16 23:52:51.000000000 -0400
@@ -279,6 +279,7 @@ struct mlx4_en_tx_ring {
 	u32			size; /* number of TXBBs */
 	u32			size_mask;
 	u16			stride;
+	u32			full_size;
 	u16			cqn;	/* index of port CQ associated with this ring */
 	u32			buf_size;
 	__be32			doorbell_qpn;
@@ -579,7 +580,6 @@ struct mlx4_en_priv {
 	int vids[128];
 	bool wol;
 	struct device *ddev;
-	int base_tx_qpn;
 	struct hlist_head mac_hash[MLX4_EN_MAC_HASH_SIZE];
 	struct hwtstamp_config hwtstamp_config;
 
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/net/phy/phy_device.c linux-libre-4.1.6-gnu/drivers/net/phy/phy_device.c
--- linux-libre-4.1-gnu/drivers/net/phy/phy_device.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/net/phy/phy_device.c	2015-08-16 23:52:51.000000000 -0400
@@ -796,10 +796,11 @@ static int genphy_config_advert(struct p
 	if (phydev->supported & (SUPPORTED_1000baseT_Half |
 				 SUPPORTED_1000baseT_Full)) {
 		adv |= ethtool_adv_to_mii_ctrl1000_t(advertise);
-		if (adv != oldadv)
-			changed = 1;
 	}
 
+	if (adv != oldadv)
+		changed = 1;
+
 	err = phy_write(phydev, MII_CTRL1000, adv);
 	if (err < 0)
 		return err;
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/net/wireless/ath/ath10k/pci.c linux-libre-4.1.6-gnu/drivers/net/wireless/ath/ath10k/pci.c
--- linux-libre-4.1-gnu/drivers/net/wireless/ath/ath10k/pci.c	2015-06-22 02:01:26.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/net/wireless/ath/ath10k/pci.c	2015-08-17 08:32:53.000000000 -0400
@@ -1524,12 +1524,11 @@ static int ath10k_pci_get_num_banks(stru
 		switch (MS(ar->chip_id, SOC_CHIP_ID_REV)) {
 		case QCA6174_HW_1_0_CHIP_ID_REV:
 		case QCA6174_HW_1_1_CHIP_ID_REV:
+		case QCA6174_HW_2_1_CHIP_ID_REV:
+		case QCA6174_HW_2_2_CHIP_ID_REV:
 			return 3;
 		case QCA6174_HW_1_3_CHIP_ID_REV:
 			return 2;
-		case QCA6174_HW_2_1_CHIP_ID_REV:
-		case QCA6174_HW_2_2_CHIP_ID_REV:
-			return 6;
 		case QCA6174_HW_3_0_CHIP_ID_REV:
 		case QCA6174_HW_3_1_CHIP_ID_REV:
 		case QCA6174_HW_3_2_CHIP_ID_REV:
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/net/wireless/ath/ath9k/htc.h linux-libre-4.1.6-gnu/drivers/net/wireless/ath/ath9k/htc.h
--- linux-libre-4.1-gnu/drivers/net/wireless/ath/ath9k/htc.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/net/wireless/ath/ath9k/htc.h	2015-08-16 23:52:51.000000000 -0400
@@ -440,9 +440,9 @@ static inline void ath9k_htc_stop_btcoex
 }
 #endif /* CONFIG_ATH9K_BTCOEX_SUPPORT */
 
-#define OP_BT_PRIORITY_DETECTED    BIT(3)
-#define OP_BT_SCAN                 BIT(4)
-#define OP_TSF_RESET               BIT(6)
+#define OP_BT_PRIORITY_DETECTED    3
+#define OP_BT_SCAN                 4
+#define OP_TSF_RESET               6
 
 enum htc_op_flags {
 	HTC_FWFLAG_NO_RMW,
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/net/wireless/ath/ath9k/main.c linux-libre-4.1.6-gnu/drivers/net/wireless/ath/ath9k/main.c
--- linux-libre-4.1-gnu/drivers/net/wireless/ath/ath9k/main.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/net/wireless/ath/ath9k/main.c	2015-08-16 23:52:51.000000000 -0400
@@ -216,11 +216,13 @@ static bool ath_prepare_reset(struct ath
 	ath_stop_ani(sc);
 	ath9k_hw_disable_interrupts(ah);
 
-	if (!ath_drain_all_txq(sc))
-		ret = false;
-
-	if (!ath_stoprecv(sc))
-		ret = false;
+	if (AR_SREV_9300_20_OR_LATER(ah)) {
+		ret &= ath_stoprecv(sc);
+		ret &= ath_drain_all_txq(sc);
+	} else {
+		ret &= ath_drain_all_txq(sc);
+		ret &= ath_stoprecv(sc);
+	}
 
 	return ret;
 }
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/net/wireless/b43/main.c linux-libre-4.1.6-gnu/drivers/net/wireless/b43/main.c
--- linux-libre-4.1-gnu/drivers/net/wireless/b43/main.c	2015-06-22 01:59:10.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/net/wireless/b43/main.c	2015-08-17 08:30:07.000000000 -0400
@@ -5361,6 +5361,10 @@ static void b43_supported_bands(struct b
 		*have_5ghz_phy = true;
 		return;
 	case 0x4321: /* BCM4306 */
+		/* There are 14e4:4321 PCI devs with 2.4 GHz BCM4321 (N-PHY) */
+		if (dev->phy.type != B43_PHYTYPE_G)
+			break;
+		/* fall through */
 	case 0x4313: /* BCM4311 */
 	case 0x431a: /* BCM4318 */
 	case 0x432a: /* BCM4321 */
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/net/wireless/iwlwifi/iwl-nvm-parse.c linux-libre-4.1.6-gnu/drivers/net/wireless/iwlwifi/iwl-nvm-parse.c
--- linux-libre-4.1-gnu/drivers/net/wireless/iwlwifi/iwl-nvm-parse.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/net/wireless/iwlwifi/iwl-nvm-parse.c	2015-08-16 23:52:51.000000000 -0400
@@ -540,13 +540,11 @@ static void iwl_set_hw_address_family_80
 		hw_addr = (const u8 *)(mac_override +
 				 MAC_ADDRESS_OVERRIDE_FAMILY_8000);
 
-		/* The byte order is little endian 16 bit, meaning 214365 */
-		data->hw_addr[0] = hw_addr[1];
-		data->hw_addr[1] = hw_addr[0];
-		data->hw_addr[2] = hw_addr[3];
-		data->hw_addr[3] = hw_addr[2];
-		data->hw_addr[4] = hw_addr[5];
-		data->hw_addr[5] = hw_addr[4];
+		/*
+		 * Store the MAC address from MAO section.
+		 * No byte swapping is required in MAO section
+		 */
+		memcpy(data->hw_addr, hw_addr, ETH_ALEN);
 
 		/*
 		 * Force the use of the OTP MAC address in case of reserved MAC
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/net/wireless/iwlwifi/mvm/debugfs.c linux-libre-4.1.6-gnu/drivers/net/wireless/iwlwifi/mvm/debugfs.c
--- linux-libre-4.1-gnu/drivers/net/wireless/iwlwifi/mvm/debugfs.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/net/wireless/iwlwifi/mvm/debugfs.c	2015-08-16 23:52:51.000000000 -0400
@@ -6,7 +6,7 @@
  * GPL LICENSE SUMMARY
  *
  * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
- * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
+ * Copyright(c) 2013 - 2015 Intel Mobile Communications 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
@@ -32,7 +32,7 @@
  * BSD LICENSE
  *
  * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
- * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
+ * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -1356,6 +1356,7 @@ static ssize_t iwl_dbgfs_d0i3_refs_read(
 	PRINT_MVM_REF(IWL_MVM_REF_UCODE_DOWN);
 	PRINT_MVM_REF(IWL_MVM_REF_SCAN);
 	PRINT_MVM_REF(IWL_MVM_REF_ROC);
+	PRINT_MVM_REF(IWL_MVM_REF_ROC_AUX);
 	PRINT_MVM_REF(IWL_MVM_REF_P2P_CLIENT);
 	PRINT_MVM_REF(IWL_MVM_REF_AP_IBSS);
 	PRINT_MVM_REF(IWL_MVM_REF_USER);
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/net/wireless/iwlwifi/mvm/mac80211.c linux-libre-4.1.6-gnu/drivers/net/wireless/iwlwifi/mvm/mac80211.c
--- linux-libre-4.1-gnu/drivers/net/wireless/iwlwifi/mvm/mac80211.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/net/wireless/iwlwifi/mvm/mac80211.c	2015-08-16 23:52:51.000000000 -0400
@@ -1404,7 +1404,7 @@ void __iwl_mvm_mac_stop(struct iwl_mvm *
 	 * The work item could be running or queued if the
 	 * ROC time event stops just as we get here.
 	 */
-	cancel_work_sync(&mvm->roc_done_wk);
+	flush_work(&mvm->roc_done_wk);
 
 	iwl_trans_stop_device(mvm->trans);
 
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/net/wireless/iwlwifi/mvm/mvm.h linux-libre-4.1.6-gnu/drivers/net/wireless/iwlwifi/mvm/mvm.h
--- linux-libre-4.1-gnu/drivers/net/wireless/iwlwifi/mvm/mvm.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/net/wireless/iwlwifi/mvm/mvm.h	2015-08-16 23:52:51.000000000 -0400
@@ -275,6 +275,7 @@ enum iwl_mvm_ref_type {
 	IWL_MVM_REF_UCODE_DOWN,
 	IWL_MVM_REF_SCAN,
 	IWL_MVM_REF_ROC,
+	IWL_MVM_REF_ROC_AUX,
 	IWL_MVM_REF_P2P_CLIENT,
 	IWL_MVM_REF_AP_IBSS,
 	IWL_MVM_REF_USER,
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/net/wireless/iwlwifi/mvm/time-event.c linux-libre-4.1.6-gnu/drivers/net/wireless/iwlwifi/mvm/time-event.c
--- linux-libre-4.1-gnu/drivers/net/wireless/iwlwifi/mvm/time-event.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/net/wireless/iwlwifi/mvm/time-event.c	2015-08-16 23:52:51.000000000 -0400
@@ -6,7 +6,7 @@
  * GPL LICENSE SUMMARY
  *
  * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
- * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
+ * Copyright(c) 2013 - 2015 Intel Mobile Communications 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
@@ -32,7 +32,7 @@
  * BSD LICENSE
  *
  * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
- * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
+ * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -108,12 +108,14 @@ void iwl_mvm_roc_done_wk(struct work_str
 	 * in the case that the time event actually completed in the firmware
 	 * (which is handled in iwl_mvm_te_handle_notif).
 	 */
-	if (test_and_clear_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status))
+	if (test_and_clear_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status)) {
 		queues |= BIT(IWL_MVM_OFFCHANNEL_QUEUE);
-	if (test_and_clear_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status))
+		iwl_mvm_unref(mvm, IWL_MVM_REF_ROC);
+	}
+	if (test_and_clear_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status)) {
 		queues |= BIT(mvm->aux_queue);
-
-	iwl_mvm_unref(mvm, IWL_MVM_REF_ROC);
+		iwl_mvm_unref(mvm, IWL_MVM_REF_ROC_AUX);
+	}
 
 	synchronize_net();
 
@@ -393,6 +395,7 @@ static int iwl_mvm_aux_roc_te_handle_not
 	} else if (le32_to_cpu(notif->action) == TE_V2_NOTIF_HOST_EVENT_START) {
 		set_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status);
 		te_data->running = true;
+		iwl_mvm_ref(mvm, IWL_MVM_REF_ROC_AUX);
 		ieee80211_ready_on_channel(mvm->hw); /* Start TE */
 	} else {
 		IWL_DEBUG_TE(mvm,
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/net/wireless/iwlwifi/mvm/tx.c linux-libre-4.1.6-gnu/drivers/net/wireless/iwlwifi/mvm/tx.c
--- linux-libre-4.1-gnu/drivers/net/wireless/iwlwifi/mvm/tx.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/net/wireless/iwlwifi/mvm/tx.c	2015-08-16 23:52:51.000000000 -0400
@@ -225,7 +225,7 @@ void iwl_mvm_set_tx_cmd_rate(struct iwl_
 
 	if (info->band == IEEE80211_BAND_2GHZ &&
 	    !iwl_mvm_bt_coex_is_shared_ant_avail(mvm))
-		rate_flags = BIT(mvm->cfg->non_shared_ant) << RATE_MCS_ANT_POS;
+		rate_flags = mvm->cfg->non_shared_ant << RATE_MCS_ANT_POS;
 	else
 		rate_flags =
 			BIT(mvm->mgmt_last_antenna_idx) << RATE_MCS_ANT_POS;
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/net/wireless/iwlwifi/pcie/trans.c linux-libre-4.1.6-gnu/drivers/net/wireless/iwlwifi/pcie/trans.c
--- linux-libre-4.1-gnu/drivers/net/wireless/iwlwifi/pcie/trans.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/net/wireless/iwlwifi/pcie/trans.c	2015-08-16 23:52:51.000000000 -0400
@@ -2515,6 +2515,12 @@ struct iwl_trans *iwl_trans_pcie_alloc(s
 		trans->hw_rev = (trans->hw_rev & 0xfff0) |
 				(CSR_HW_REV_STEP(trans->hw_rev << 2) << 2);
 
+		ret = iwl_pcie_prepare_card_hw(trans);
+		if (ret) {
+			IWL_WARN(trans, "Exit HW not ready\n");
+			goto out_pci_disable_msi;
+		}
+
 		/*
 		 * in-order to recognize C step driver should read chip version
 		 * id located at the AUX bus MISC address space.
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/net/wireless/rtlwifi/rtl8188ee/hw.c linux-libre-4.1.6-gnu/drivers/net/wireless/rtlwifi/rtl8188ee/hw.c
--- linux-libre-4.1-gnu/drivers/net/wireless/rtlwifi/rtl8188ee/hw.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/net/wireless/rtlwifi/rtl8188ee/hw.c	2015-08-16 23:52:51.000000000 -0400
@@ -1354,27 +1354,11 @@ void rtl88ee_set_qos(struct ieee80211_hw
 	}
 }
 
-static void rtl88ee_clear_interrupt(struct ieee80211_hw *hw)
-{
-	struct rtl_priv *rtlpriv = rtl_priv(hw);
-	u32 tmp;
-
-	tmp = rtl_read_dword(rtlpriv, REG_HISR);
-	rtl_write_dword(rtlpriv, REG_HISR, tmp);
-
-	tmp = rtl_read_dword(rtlpriv, REG_HISRE);
-	rtl_write_dword(rtlpriv, REG_HISRE, tmp);
-
-	tmp = rtl_read_dword(rtlpriv, REG_HSISR);
-	rtl_write_dword(rtlpriv, REG_HSISR, tmp);
-}
-
 void rtl88ee_enable_interrupt(struct ieee80211_hw *hw)
 {
 	struct rtl_priv *rtlpriv = rtl_priv(hw);
 	struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 
-	rtl88ee_clear_interrupt(hw);/*clear it here first*/
 	rtl_write_dword(rtlpriv, REG_HIMR,
 			rtlpci->irq_mask[0] & 0xFFFFFFFF);
 	rtl_write_dword(rtlpriv, REG_HIMRE,
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/net/wireless/rtlwifi/rtl8192ee/hw.c linux-libre-4.1.6-gnu/drivers/net/wireless/rtlwifi/rtl8192ee/hw.c
--- linux-libre-4.1-gnu/drivers/net/wireless/rtlwifi/rtl8192ee/hw.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/net/wireless/rtlwifi/rtl8192ee/hw.c	2015-08-16 23:52:51.000000000 -0400
@@ -1584,28 +1584,11 @@ void rtl92ee_set_qos(struct ieee80211_hw
 	}
 }
 
-static void rtl92ee_clear_interrupt(struct ieee80211_hw *hw)
-{
-	struct rtl_priv *rtlpriv = rtl_priv(hw);
-	u32 tmp;
-
-	tmp = rtl_read_dword(rtlpriv, REG_HISR);
-	rtl_write_dword(rtlpriv, REG_HISR, tmp);
-
-	tmp = rtl_read_dword(rtlpriv, REG_HISRE);
-	rtl_write_dword(rtlpriv, REG_HISRE, tmp);
-
-	tmp = rtl_read_dword(rtlpriv, REG_HSISR);
-	rtl_write_dword(rtlpriv, REG_HSISR, tmp);
-}
-
 void rtl92ee_enable_interrupt(struct ieee80211_hw *hw)
 {
 	struct rtl_priv *rtlpriv = rtl_priv(hw);
 	struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 
-	rtl92ee_clear_interrupt(hw);/*clear it here first*/
-
 	rtl_write_dword(rtlpriv, REG_HIMR, rtlpci->irq_mask[0] & 0xFFFFFFFF);
 	rtl_write_dword(rtlpriv, REG_HIMRE, rtlpci->irq_mask[1] & 0xFFFFFFFF);
 	rtlpci->irq_enabled = true;
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/net/wireless/rtlwifi/rtl8723ae/hw.c linux-libre-4.1.6-gnu/drivers/net/wireless/rtlwifi/rtl8723ae/hw.c
--- linux-libre-4.1-gnu/drivers/net/wireless/rtlwifi/rtl8723ae/hw.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/net/wireless/rtlwifi/rtl8723ae/hw.c	2015-08-16 23:52:51.000000000 -0400
@@ -1258,18 +1258,6 @@ void rtl8723e_set_qos(struct ieee80211_h
 	}
 }
 
-static void rtl8723e_clear_interrupt(struct ieee80211_hw *hw)
-{
-	struct rtl_priv *rtlpriv = rtl_priv(hw);
-	u32 tmp;
-
-	tmp = rtl_read_dword(rtlpriv, REG_HISR);
-	rtl_write_dword(rtlpriv, REG_HISR, tmp);
-
-	tmp = rtl_read_dword(rtlpriv, REG_HISRE);
-	rtl_write_dword(rtlpriv, REG_HISRE, tmp);
-}
-
 void rtl8723e_enable_interrupt(struct ieee80211_hw *hw)
 {
 	struct rtl_priv *rtlpriv = rtl_priv(hw);
@@ -1284,7 +1272,6 @@ void rtl8723e_disable_interrupt(struct i
 {
 	struct rtl_priv *rtlpriv = rtl_priv(hw);
 	struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
-	rtl8723e_clear_interrupt(hw);/*clear it here first*/
 	rtl_write_dword(rtlpriv, 0x3a8, IMR8190_DISABLED);
 	rtl_write_dword(rtlpriv, 0x3ac, IMR8190_DISABLED);
 	rtlpci->irq_enabled = false;
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/net/wireless/rtlwifi/rtl8723be/hw.c linux-libre-4.1.6-gnu/drivers/net/wireless/rtlwifi/rtl8723be/hw.c
--- linux-libre-4.1-gnu/drivers/net/wireless/rtlwifi/rtl8723be/hw.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/net/wireless/rtlwifi/rtl8723be/hw.c	2015-08-16 23:52:51.000000000 -0400
@@ -1634,28 +1634,11 @@ void rtl8723be_set_qos(struct ieee80211_
 	}
 }
 
-static void rtl8723be_clear_interrupt(struct ieee80211_hw *hw)
-{
-	struct rtl_priv *rtlpriv = rtl_priv(hw);
-	u32 tmp;
-
-	tmp = rtl_read_dword(rtlpriv, REG_HISR);
-	rtl_write_dword(rtlpriv, REG_HISR, tmp);
-
-	tmp = rtl_read_dword(rtlpriv, REG_HISRE);
-	rtl_write_dword(rtlpriv, REG_HISRE, tmp);
-
-	tmp = rtl_read_dword(rtlpriv, REG_HSISR);
-	rtl_write_dword(rtlpriv, REG_HSISR, tmp);
-}
-
 void rtl8723be_enable_interrupt(struct ieee80211_hw *hw)
 {
 	struct rtl_priv *rtlpriv = rtl_priv(hw);
 	struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 
-	rtl8723be_clear_interrupt(hw);/*clear it here first*/
-
 	rtl_write_dword(rtlpriv, REG_HIMR, rtlpci->irq_mask[0] & 0xFFFFFFFF);
 	rtl_write_dword(rtlpriv, REG_HIMRE, rtlpci->irq_mask[1] & 0xFFFFFFFF);
 	rtlpci->irq_enabled = true;
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/net/wireless/rtlwifi/rtl8821ae/hw.c linux-libre-4.1.6-gnu/drivers/net/wireless/rtlwifi/rtl8821ae/hw.c
--- linux-libre-4.1-gnu/drivers/net/wireless/rtlwifi/rtl8821ae/hw.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/net/wireless/rtlwifi/rtl8821ae/hw.c	2015-08-16 23:52:51.000000000 -0400
@@ -2253,31 +2253,11 @@ void rtl8821ae_set_qos(struct ieee80211_
 	}
 }
 
-static void rtl8821ae_clear_interrupt(struct ieee80211_hw *hw)
-{
-	struct rtl_priv *rtlpriv = rtl_priv(hw);
-	u32 tmp;
-	tmp = rtl_read_dword(rtlpriv, REG_HISR);
-	/*printk("clear interrupt first:\n");
-	printk("0x%x = 0x%08x\n",REG_HISR, tmp);*/
-	rtl_write_dword(rtlpriv, REG_HISR, tmp);
-
-	tmp = rtl_read_dword(rtlpriv, REG_HISRE);
-	/*printk("0x%x = 0x%08x\n",REG_HISRE, tmp);*/
-	rtl_write_dword(rtlpriv, REG_HISRE, tmp);
-
-	tmp = rtl_read_dword(rtlpriv, REG_HSISR);
-	/*printk("0x%x = 0x%08x\n",REG_HSISR, tmp);*/
-	rtl_write_dword(rtlpriv, REG_HSISR, tmp);
-}
-
 void rtl8821ae_enable_interrupt(struct ieee80211_hw *hw)
 {
 	struct rtl_priv *rtlpriv = rtl_priv(hw);
 	struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 
-	rtl8821ae_clear_interrupt(hw);/*clear it here first*/
-
 	rtl_write_dword(rtlpriv, REG_HIMR, rtlpci->irq_mask[0] & 0xFFFFFFFF);
 	rtl_write_dword(rtlpriv, REG_HIMRE, rtlpci->irq_mask[1] & 0xFFFFFFFF);
 	rtlpci->irq_enabled = true;
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/net/xen-netback/xenbus.c linux-libre-4.1.6-gnu/drivers/net/xen-netback/xenbus.c
--- linux-libre-4.1-gnu/drivers/net/xen-netback/xenbus.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/net/xen-netback/xenbus.c	2015-08-16 23:52:51.000000000 -0400
@@ -681,6 +681,9 @@ static int xen_register_watchers(struct
 	char *node;
 	unsigned maxlen = strlen(dev->nodename) + sizeof("/rate");
 
+	if (vif->credit_watch.node)
+		return -EADDRINUSE;
+
 	node = kmalloc(maxlen, GFP_KERNEL);
 	if (!node)
 		return -ENOMEM;
@@ -770,6 +773,7 @@ static void connect(struct backend_info
 	}
 
 	xen_net_read_rate(dev, &credit_bytes, &credit_usec);
+	xen_unregister_watchers(be->vif);
 	xen_register_watchers(dev, be->vif);
 	read_xenbus_vif_flags(be);
 
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/nfc/st21nfcb/i2c.c linux-libre-4.1.6-gnu/drivers/nfc/st21nfcb/i2c.c
--- linux-libre-4.1-gnu/drivers/nfc/st21nfcb/i2c.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/nfc/st21nfcb/i2c.c	2015-08-16 23:52:51.000000000 -0400
@@ -87,11 +87,6 @@ static void st21nfcb_nci_i2c_disable(voi
 	gpio_set_value(phy->gpio_reset, 1);
 }
 
-static void st21nfcb_nci_remove_header(struct sk_buff *skb)
-{
-	skb_pull(skb, ST21NFCB_FRAME_HEADROOM);
-}
-
 /*
  * Writing a frame must not return the number of written bytes.
  * It must return either zero for success, or <0 for error.
@@ -121,8 +116,6 @@ static int st21nfcb_nci_i2c_write(void *
 			r = 0;
 	}
 
-	st21nfcb_nci_remove_header(skb);
-
 	return r;
 }
 
@@ -366,9 +359,6 @@ static int st21nfcb_nci_i2c_remove(struc
 
 	ndlc_remove(phy->ndlc);
 
-	if (phy->powered)
-		st21nfcb_nci_i2c_disable(phy);
-
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/nfc/st21nfcb/st21nfcb.c linux-libre-4.1.6-gnu/drivers/nfc/st21nfcb/st21nfcb.c
--- linux-libre-4.1-gnu/drivers/nfc/st21nfcb/st21nfcb.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/nfc/st21nfcb/st21nfcb.c	2015-08-16 23:52:51.000000000 -0400
@@ -131,11 +131,8 @@ EXPORT_SYMBOL_GPL(st21nfcb_nci_probe);
 
 void st21nfcb_nci_remove(struct nci_dev *ndev)
 {
-	struct st21nfcb_nci_info *info = nci_get_drvdata(ndev);
-
 	nci_unregister_device(ndev);
 	nci_free_device(ndev);
-	kfree(info);
 }
 EXPORT_SYMBOL_GPL(st21nfcb_nci_remove);
 
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/of/address.c linux-libre-4.1.6-gnu/drivers/of/address.c
--- linux-libre-4.1-gnu/drivers/of/address.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/of/address.c	2015-08-16 23:52:51.000000000 -0400
@@ -712,7 +712,7 @@ int __weak pci_register_io_range(phys_ad
 	}
 
 	/* add the range to the list */
-	range = kzalloc(sizeof(*range), GFP_KERNEL);
+	range = kzalloc(sizeof(*range), GFP_ATOMIC);
 	if (!range) {
 		err = -ENOMEM;
 		goto end_register;
@@ -765,7 +765,7 @@ unsigned long __weak pci_address_to_pio(
 	spin_lock(&io_range_lock);
 	list_for_each_entry(res, &io_range_list, list) {
 		if (address >= res->start && address < res->start + res->size) {
-			addr = res->start - address + offset;
+			addr = address - res->start + offset;
 			break;
 		}
 		offset += res->size;
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/of/base.c linux-libre-4.1.6-gnu/drivers/of/base.c
--- linux-libre-4.1-gnu/drivers/of/base.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/of/base.c	2015-08-16 23:52:51.000000000 -0400
@@ -89,7 +89,7 @@ EXPORT_SYMBOL(of_n_size_cells);
 #ifdef CONFIG_NUMA
 int __weak of_node_to_nid(struct device_node *np)
 {
-	return numa_node_id();
+	return NUMA_NO_NODE;
 }
 #endif
 
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/pci/bus.c linux-libre-4.1.6-gnu/drivers/pci/bus.c
--- linux-libre-4.1-gnu/drivers/pci/bus.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/pci/bus.c	2015-08-16 23:52:51.000000000 -0400
@@ -92,11 +92,11 @@ void pci_bus_remove_resources(struct pci
 }
 
 static struct pci_bus_region pci_32_bit = {0, 0xffffffffULL};
-#ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT
+#ifdef CONFIG_PCI_BUS_ADDR_T_64BIT
 static struct pci_bus_region pci_64_bit = {0,
-				(dma_addr_t) 0xffffffffffffffffULL};
-static struct pci_bus_region pci_high = {(dma_addr_t) 0x100000000ULL,
-				(dma_addr_t) 0xffffffffffffffffULL};
+				(pci_bus_addr_t) 0xffffffffffffffffULL};
+static struct pci_bus_region pci_high = {(pci_bus_addr_t) 0x100000000ULL,
+				(pci_bus_addr_t) 0xffffffffffffffffULL};
 #endif
 
 /*
@@ -200,7 +200,7 @@ int pci_bus_alloc_resource(struct pci_bu
 					  resource_size_t),
 		void *alignf_data)
 {
-#ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT
+#ifdef CONFIG_PCI_BUS_ADDR_T_64BIT
 	int rc;
 
 	if (res->flags & IORESOURCE_MEM_64) {
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/pci/hotplug/pciehp_hpc.c linux-libre-4.1.6-gnu/drivers/pci/hotplug/pciehp_hpc.c
--- linux-libre-4.1-gnu/drivers/pci/hotplug/pciehp_hpc.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/pci/hotplug/pciehp_hpc.c	2015-08-16 23:52:51.000000000 -0400
@@ -176,20 +176,17 @@ static void pcie_wait_cmd(struct control
 			  jiffies_to_msecs(jiffies - ctrl->cmd_started));
 }
 
-/**
- * pcie_write_cmd - Issue controller command
- * @ctrl: controller to which the command is issued
- * @cmd:  command value written to slot control register
- * @mask: bitmask of slot control register to be modified
- */
-static void pcie_write_cmd(struct controller *ctrl, u16 cmd, u16 mask)
+static void pcie_do_write_cmd(struct controller *ctrl, u16 cmd,
+			      u16 mask, bool wait)
 {
 	struct pci_dev *pdev = ctrl_dev(ctrl);
 	u16 slot_ctrl;
 
 	mutex_lock(&ctrl->ctrl_lock);
 
-	/* Wait for any previous command that might still be in progress */
+	/*
+	 * Always wait for any previous command that might still be in progress
+	 */
 	pcie_wait_cmd(ctrl);
 
 	pcie_capability_read_word(pdev, PCI_EXP_SLTCTL, &slot_ctrl);
@@ -201,9 +198,33 @@ static void pcie_write_cmd(struct contro
 	ctrl->cmd_started = jiffies;
 	ctrl->slot_ctrl = slot_ctrl;
 
+	/*
+	 * Optionally wait for the hardware to be ready for a new command,
+	 * indicating completion of the above issued command.
+	 */
+	if (wait)
+		pcie_wait_cmd(ctrl);
+
 	mutex_unlock(&ctrl->ctrl_lock);
 }
 
+/**
+ * pcie_write_cmd - Issue controller command
+ * @ctrl: controller to which the command is issued
+ * @cmd:  command value written to slot control register
+ * @mask: bitmask of slot control register to be modified
+ */
+static void pcie_write_cmd(struct controller *ctrl, u16 cmd, u16 mask)
+{
+	pcie_do_write_cmd(ctrl, cmd, mask, true);
+}
+
+/* Same as above without waiting for the hardware to latch */
+static void pcie_write_cmd_nowait(struct controller *ctrl, u16 cmd, u16 mask)
+{
+	pcie_do_write_cmd(ctrl, cmd, mask, false);
+}
+
 bool pciehp_check_link_active(struct controller *ctrl)
 {
 	struct pci_dev *pdev = ctrl_dev(ctrl);
@@ -422,7 +443,7 @@ void pciehp_set_attention_status(struct
 	default:
 		return;
 	}
-	pcie_write_cmd(ctrl, slot_cmd, PCI_EXP_SLTCTL_AIC);
+	pcie_write_cmd_nowait(ctrl, slot_cmd, PCI_EXP_SLTCTL_AIC);
 	ctrl_dbg(ctrl, "%s: SLOTCTRL %x write cmd %x\n", __func__,
 		 pci_pcie_cap(ctrl->pcie->port) + PCI_EXP_SLTCTL, slot_cmd);
 }
@@ -434,7 +455,8 @@ void pciehp_green_led_on(struct slot *sl
 	if (!PWR_LED(ctrl))
 		return;
 
-	pcie_write_cmd(ctrl, PCI_EXP_SLTCTL_PWR_IND_ON, PCI_EXP_SLTCTL_PIC);
+	pcie_write_cmd_nowait(ctrl, PCI_EXP_SLTCTL_PWR_IND_ON,
+			      PCI_EXP_SLTCTL_PIC);
 	ctrl_dbg(ctrl, "%s: SLOTCTRL %x write cmd %x\n", __func__,
 		 pci_pcie_cap(ctrl->pcie->port) + PCI_EXP_SLTCTL,
 		 PCI_EXP_SLTCTL_PWR_IND_ON);
@@ -447,7 +469,8 @@ void pciehp_green_led_off(struct slot *s
 	if (!PWR_LED(ctrl))
 		return;
 
-	pcie_write_cmd(ctrl, PCI_EXP_SLTCTL_PWR_IND_OFF, PCI_EXP_SLTCTL_PIC);
+	pcie_write_cmd_nowait(ctrl, PCI_EXP_SLTCTL_PWR_IND_OFF,
+			      PCI_EXP_SLTCTL_PIC);
 	ctrl_dbg(ctrl, "%s: SLOTCTRL %x write cmd %x\n", __func__,
 		 pci_pcie_cap(ctrl->pcie->port) + PCI_EXP_SLTCTL,
 		 PCI_EXP_SLTCTL_PWR_IND_OFF);
@@ -460,7 +483,8 @@ void pciehp_green_led_blink(struct slot
 	if (!PWR_LED(ctrl))
 		return;
 
-	pcie_write_cmd(ctrl, PCI_EXP_SLTCTL_PWR_IND_BLINK, PCI_EXP_SLTCTL_PIC);
+	pcie_write_cmd_nowait(ctrl, PCI_EXP_SLTCTL_PWR_IND_BLINK,
+			      PCI_EXP_SLTCTL_PIC);
 	ctrl_dbg(ctrl, "%s: SLOTCTRL %x write cmd %x\n", __func__,
 		 pci_pcie_cap(ctrl->pcie->port) + PCI_EXP_SLTCTL,
 		 PCI_EXP_SLTCTL_PWR_IND_BLINK);
@@ -613,7 +637,7 @@ void pcie_enable_notification(struct con
 		PCI_EXP_SLTCTL_HPIE | PCI_EXP_SLTCTL_CCIE |
 		PCI_EXP_SLTCTL_DLLSCE);
 
-	pcie_write_cmd(ctrl, cmd, mask);
+	pcie_write_cmd_nowait(ctrl, cmd, mask);
 	ctrl_dbg(ctrl, "%s: SLOTCTRL %x write cmd %x\n", __func__,
 		 pci_pcie_cap(ctrl->pcie->port) + PCI_EXP_SLTCTL, cmd);
 }
@@ -664,7 +688,7 @@ int pciehp_reset_slot(struct slot *slot,
 	pci_reset_bridge_secondary_bus(ctrl->pcie->port);
 
 	pcie_capability_write_word(pdev, PCI_EXP_SLTSTA, stat_mask);
-	pcie_write_cmd(ctrl, ctrl_mask, ctrl_mask);
+	pcie_write_cmd_nowait(ctrl, ctrl_mask, ctrl_mask);
 	ctrl_dbg(ctrl, "%s: SLOTCTRL %x write cmd %x\n", __func__,
 		 pci_pcie_cap(ctrl->pcie->port) + PCI_EXP_SLTCTL, ctrl_mask);
 	if (pciehp_poll_mode)
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/pci/Kconfig linux-libre-4.1.6-gnu/drivers/pci/Kconfig
--- linux-libre-4.1-gnu/drivers/pci/Kconfig	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/pci/Kconfig	2015-08-16 23:52:51.000000000 -0400
@@ -1,6 +1,10 @@
 #
 # PCI configuration
 #
+config PCI_BUS_ADDR_T_64BIT
+	def_bool y if (ARCH_DMA_ADDR_T_64BIT || 64BIT)
+	depends on PCI
+
 config PCI_MSI
 	bool "Message Signaled Interrupts (MSI and MSI-X)"
 	depends on PCI
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/pci/pci.c linux-libre-4.1.6-gnu/drivers/pci/pci.c
--- linux-libre-4.1-gnu/drivers/pci/pci.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/pci/pci.c	2015-08-16 23:52:51.000000000 -0400
@@ -4324,6 +4324,17 @@ bool pci_device_is_present(struct pci_de
 }
 EXPORT_SYMBOL_GPL(pci_device_is_present);
 
+void pci_ignore_hotplug(struct pci_dev *dev)
+{
+	struct pci_dev *bridge = dev->bus->self;
+
+	dev->ignore_hotplug = 1;
+	/* Propagate the "ignore hotplug" setting to the parent bridge. */
+	if (bridge)
+		bridge->ignore_hotplug = 1;
+}
+EXPORT_SYMBOL_GPL(pci_ignore_hotplug);
+
 #define RESOURCE_ALIGNMENT_PARAM_SIZE COMMAND_LINE_SIZE
 static char resource_alignment_param[RESOURCE_ALIGNMENT_PARAM_SIZE] = {0};
 static DEFINE_SPINLOCK(resource_alignment_lock);
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/pci/probe.c linux-libre-4.1.6-gnu/drivers/pci/probe.c
--- linux-libre-4.1-gnu/drivers/pci/probe.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/pci/probe.c	2015-08-16 23:52:51.000000000 -0400
@@ -254,8 +254,8 @@ int __pci_read_base(struct pci_dev *dev,
 	}
 
 	if (res->flags & IORESOURCE_MEM_64) {
-		if ((sizeof(dma_addr_t) < 8 || sizeof(resource_size_t) < 8) &&
-		    sz64 > 0x100000000ULL) {
+		if ((sizeof(pci_bus_addr_t) < 8 || sizeof(resource_size_t) < 8)
+		    && sz64 > 0x100000000ULL) {
 			res->flags |= IORESOURCE_UNSET | IORESOURCE_DISABLED;
 			res->start = 0;
 			res->end = 0;
@@ -264,7 +264,7 @@ int __pci_read_base(struct pci_dev *dev,
 			goto out;
 		}
 
-		if ((sizeof(dma_addr_t) < 8) && l) {
+		if ((sizeof(pci_bus_addr_t) < 8) && l) {
 			/* Above 32-bit boundary; try to reallocate */
 			res->flags |= IORESOURCE_UNSET;
 			res->start = 0;
@@ -399,7 +399,7 @@ static void pci_read_bridge_mmio_pref(st
 	struct pci_dev *dev = child->self;
 	u16 mem_base_lo, mem_limit_lo;
 	u64 base64, limit64;
-	dma_addr_t base, limit;
+	pci_bus_addr_t base, limit;
 	struct pci_bus_region region;
 	struct resource *res;
 
@@ -426,8 +426,8 @@ static void pci_read_bridge_mmio_pref(st
 		}
 	}
 
-	base = (dma_addr_t) base64;
-	limit = (dma_addr_t) limit64;
+	base = (pci_bus_addr_t) base64;
+	limit = (pci_bus_addr_t) limit64;
 
 	if (base != base64) {
 		dev_err(&dev->dev, "can't handle bridge window above 4GB (bus address %#010llx)\n",
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/pcmcia/topic.h linux-libre-4.1.6-gnu/drivers/pcmcia/topic.h
--- linux-libre-4.1-gnu/drivers/pcmcia/topic.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/pcmcia/topic.h	2015-08-16 23:52:51.000000000 -0400
@@ -104,6 +104,9 @@
 #define TOPIC_EXCA_IF_CONTROL		0x3e	/* 8 bit */
 #define TOPIC_EXCA_IFC_33V_ENA		0x01
 
+#define TOPIC_PCI_CFG_PPBCN		0x3e	/* 16-bit */
+#define TOPIC_PCI_CFG_PPBCN_WBEN	0x0400
+
 static void topic97_zoom_video(struct pcmcia_socket *sock, int onoff)
 {
 	struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket);
@@ -138,6 +141,7 @@ static int topic97_override(struct yenta
 static int topic95_override(struct yenta_socket *socket)
 {
 	u8 fctrl;
+	u16 ppbcn;
 
 	/* enable 3.3V support for 16bit cards */
 	fctrl = exca_readb(socket, TOPIC_EXCA_IF_CONTROL);
@@ -146,6 +150,18 @@ static int topic95_override(struct yenta
 	/* tell yenta to use exca registers to power 16bit cards */
 	socket->flags |= YENTA_16BIT_POWER_EXCA | YENTA_16BIT_POWER_DF;
 
+	/* Disable write buffers to prevent lockups under load with numerous
+	   Cardbus cards, observed on Tecra 500CDT and reported elsewhere on the
+	   net.  This is not a power-on default according to the datasheet
+	   but some BIOSes seem to set it. */
+	if (pci_read_config_word(socket->dev, TOPIC_PCI_CFG_PPBCN, &ppbcn) == 0
+	    && socket->dev->revision <= 7
+	    && (ppbcn & TOPIC_PCI_CFG_PPBCN_WBEN)) {
+		ppbcn &= ~TOPIC_PCI_CFG_PPBCN_WBEN;
+		pci_write_config_word(socket->dev, TOPIC_PCI_CFG_PPBCN, ppbcn);
+		dev_info(&socket->dev->dev, "Disabled ToPIC95 Cardbus write buffers.\n");
+	}
+
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/phy/phy-berlin-usb.c linux-libre-4.1.6-gnu/drivers/phy/phy-berlin-usb.c
--- linux-libre-4.1-gnu/drivers/phy/phy-berlin-usb.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/phy/phy-berlin-usb.c	2015-08-16 23:52:51.000000000 -0400
@@ -106,8 +106,8 @@
 static const u32 phy_berlin_pll_dividers[] = {
 	/* Berlin 2 */
 	CLK_REF_DIV(0xc) | FEEDBACK_CLK_DIV(0x54),
-	/* Berlin 2CD */
-	CLK_REF_DIV(0x6) | FEEDBACK_CLK_DIV(0x55),
+	/* Berlin 2CD/Q */
+	CLK_REF_DIV(0xc) | FEEDBACK_CLK_DIV(0x54),
 };
 
 struct phy_berlin_usb_priv {
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/phy/phy-twl4030-usb.c linux-libre-4.1.6-gnu/drivers/phy/phy-twl4030-usb.c
--- linux-libre-4.1-gnu/drivers/phy/phy-twl4030-usb.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/phy/phy-twl4030-usb.c	2015-08-16 23:52:51.000000000 -0400
@@ -144,6 +144,16 @@
 #define PMBR1				0x0D
 #define GPIO_USB_4PIN_ULPI_2430C	(3 << 0)
 
+/*
+ * If VBUS is valid or ID is ground, then we know a
+ * cable is present and we need to be runtime-enabled
+ */
+static inline bool cable_present(enum omap_musb_vbus_id_status stat)
+{
+	return stat == OMAP_MUSB_VBUS_VALID ||
+		stat == OMAP_MUSB_ID_GROUND;
+}
+
 struct twl4030_usb {
 	struct usb_phy		phy;
 	struct device		*dev;
@@ -536,8 +546,10 @@ static irqreturn_t twl4030_usb_irq(int i
 
 	mutex_lock(&twl->lock);
 	if (status >= 0 && status != twl->linkstat) {
+		status_changed =
+			cable_present(twl->linkstat) !=
+			cable_present(status);
 		twl->linkstat = status;
-		status_changed = true;
 	}
 	mutex_unlock(&twl->lock);
 
@@ -553,15 +565,11 @@ static irqreturn_t twl4030_usb_irq(int i
 		 * USB_LINK_VBUS state.  musb_hdrc won't care until it
 		 * starts to handle softconnect right.
 		 */
-		if ((status == OMAP_MUSB_VBUS_VALID) ||
-		    (status == OMAP_MUSB_ID_GROUND)) {
-			if (pm_runtime_suspended(twl->dev))
-				pm_runtime_get_sync(twl->dev);
+		if (cable_present(status)) {
+			pm_runtime_get_sync(twl->dev);
 		} else {
-			if (pm_runtime_active(twl->dev)) {
-				pm_runtime_mark_last_busy(twl->dev);
-				pm_runtime_put_autosuspend(twl->dev);
-			}
+			pm_runtime_mark_last_busy(twl->dev);
+			pm_runtime_put_autosuspend(twl->dev);
 		}
 		omap_musb_mailbox(status);
 	}
@@ -711,7 +719,6 @@ 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.
@@ -767,6 +774,9 @@ 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);
 
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/pinctrl/freescale/pinctrl-imx1-core.c linux-libre-4.1.6-gnu/drivers/pinctrl/freescale/pinctrl-imx1-core.c
--- linux-libre-4.1-gnu/drivers/pinctrl/freescale/pinctrl-imx1-core.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/pinctrl/freescale/pinctrl-imx1-core.c	2015-08-16 23:52:51.000000000 -0400
@@ -403,14 +403,13 @@ static int imx1_pinconf_set(struct pinct
 			     unsigned num_configs)
 {
 	struct imx1_pinctrl *ipctl = pinctrl_dev_get_drvdata(pctldev);
-	const struct imx1_pinctrl_soc_info *info = ipctl->info;
 	int i;
 
 	for (i = 0; i != num_configs; ++i) {
 		imx1_write_bit(ipctl, pin_id, configs[i] & 0x01, MX1_PUEN);
 
 		dev_dbg(ipctl->dev, "pinconf set pullup pin %s\n",
-			info->pins[pin_id].name);
+			pin_desc_get(pctldev, pin_id)->name);
 	}
 
 	return 0;
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/pinctrl/mvebu/pinctrl-armada-370.c linux-libre-4.1.6-gnu/drivers/pinctrl/mvebu/pinctrl-armada-370.c
--- linux-libre-4.1-gnu/drivers/pinctrl/mvebu/pinctrl-armada-370.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/pinctrl/mvebu/pinctrl-armada-370.c	2015-08-16 23:52:51.000000000 -0400
@@ -370,11 +370,11 @@ static struct mvebu_mpp_mode mv88f6710_m
 	MPP_MODE(64,
 	   MPP_FUNCTION(0x0, "gpio", NULL),
 	   MPP_FUNCTION(0x1, "spi0", "miso"),
-	   MPP_FUNCTION(0x2, "spi0-1", "cs1")),
+	   MPP_FUNCTION(0x2, "spi0", "cs1")),
 	MPP_MODE(65,
 	   MPP_FUNCTION(0x0, "gpio", NULL),
 	   MPP_FUNCTION(0x1, "spi0", "mosi"),
-	   MPP_FUNCTION(0x2, "spi0-1", "cs2")),
+	   MPP_FUNCTION(0x2, "spi0", "cs2")),
 };
 
 static struct mvebu_pinctrl_soc_info armada_370_pinctrl_info;
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/pinctrl/mvebu/pinctrl-armada-375.c linux-libre-4.1.6-gnu/drivers/pinctrl/mvebu/pinctrl-armada-375.c
--- linux-libre-4.1-gnu/drivers/pinctrl/mvebu/pinctrl-armada-375.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/pinctrl/mvebu/pinctrl-armada-375.c	2015-08-16 23:52:51.000000000 -0400
@@ -92,19 +92,17 @@ static struct mvebu_mpp_mode mv88f6720_m
 		 MPP_FUNCTION(0x5, "nand", "io1")),
 	MPP_MODE(8,
 		 MPP_FUNCTION(0x0, "gpio", NULL),
-		 MPP_FUNCTION(0x1, "dev ", "bootcs"),
+		 MPP_FUNCTION(0x1, "dev", "bootcs"),
 		 MPP_FUNCTION(0x2, "spi0", "cs0"),
 		 MPP_FUNCTION(0x3, "spi1", "cs0"),
 		 MPP_FUNCTION(0x5, "nand", "ce")),
 	MPP_MODE(9,
 		 MPP_FUNCTION(0x0, "gpio", NULL),
-		 MPP_FUNCTION(0x1, "nf", "wen"),
 		 MPP_FUNCTION(0x2, "spi0", "sck"),
 		 MPP_FUNCTION(0x3, "spi1", "sck"),
 		 MPP_FUNCTION(0x5, "nand", "we")),
 	MPP_MODE(10,
 		 MPP_FUNCTION(0x0, "gpio", NULL),
-		 MPP_FUNCTION(0x1, "nf", "ren"),
 		 MPP_FUNCTION(0x2, "dram", "vttctrl"),
 		 MPP_FUNCTION(0x3, "led", "c1"),
 		 MPP_FUNCTION(0x5, "nand", "re"),
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/pinctrl/mvebu/pinctrl-armada-38x.c linux-libre-4.1.6-gnu/drivers/pinctrl/mvebu/pinctrl-armada-38x.c
--- linux-libre-4.1-gnu/drivers/pinctrl/mvebu/pinctrl-armada-38x.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/pinctrl/mvebu/pinctrl-armada-38x.c	2015-08-16 23:52:51.000000000 -0400
@@ -94,37 +94,39 @@ static struct mvebu_mpp_mode armada_38x_
 		 MPP_VAR_FUNCTION(0, "gpio",  NULL,         V_88F6810_PLUS),
 		 MPP_VAR_FUNCTION(1, "ge0",   "rxd0",       V_88F6810_PLUS),
 		 MPP_VAR_FUNCTION(2, "pcie0", "rstout",     V_88F6810_PLUS),
-		 MPP_VAR_FUNCTION(3, "pcie1", "rstout",     V_88F6820_PLUS),
 		 MPP_VAR_FUNCTION(4, "spi0",  "cs1",        V_88F6810_PLUS),
-		 MPP_VAR_FUNCTION(5, "dev",   "ad14",       V_88F6810_PLUS)),
+		 MPP_VAR_FUNCTION(5, "dev",   "ad14",       V_88F6810_PLUS),
+		 MPP_VAR_FUNCTION(6, "pcie3", "clkreq",     V_88F6810_PLUS)),
 	MPP_MODE(13,
 		 MPP_VAR_FUNCTION(0, "gpio",  NULL,         V_88F6810_PLUS),
 		 MPP_VAR_FUNCTION(1, "ge0",   "rxd1",       V_88F6810_PLUS),
 		 MPP_VAR_FUNCTION(2, "pcie0", "clkreq",     V_88F6810_PLUS),
 		 MPP_VAR_FUNCTION(3, "pcie1", "clkreq",     V_88F6820_PLUS),
 		 MPP_VAR_FUNCTION(4, "spi0",  "cs2",        V_88F6810_PLUS),
-		 MPP_VAR_FUNCTION(5, "dev",   "ad15",       V_88F6810_PLUS)),
+		 MPP_VAR_FUNCTION(5, "dev",   "ad15",       V_88F6810_PLUS),
+		 MPP_VAR_FUNCTION(6, "pcie2", "clkreq",     V_88F6810_PLUS)),
 	MPP_MODE(14,
 		 MPP_VAR_FUNCTION(0, "gpio",  NULL,         V_88F6810_PLUS),
 		 MPP_VAR_FUNCTION(1, "ge0",   "rxd2",       V_88F6810_PLUS),
 		 MPP_VAR_FUNCTION(2, "ptp",   "clk",        V_88F6810_PLUS),
 		 MPP_VAR_FUNCTION(3, "m",     "vtt_ctrl",   V_88F6810_PLUS),
 		 MPP_VAR_FUNCTION(4, "spi0",  "cs3",        V_88F6810_PLUS),
-		 MPP_VAR_FUNCTION(5, "dev",   "wen1",       V_88F6810_PLUS)),
+		 MPP_VAR_FUNCTION(5, "dev",   "wen1",       V_88F6810_PLUS),
+		 MPP_VAR_FUNCTION(6, "pcie3", "clkreq",     V_88F6810_PLUS)),
 	MPP_MODE(15,
 		 MPP_VAR_FUNCTION(0, "gpio",  NULL,         V_88F6810_PLUS),
 		 MPP_VAR_FUNCTION(1, "ge0",   "rxd3",       V_88F6810_PLUS),
 		 MPP_VAR_FUNCTION(2, "ge",    "mdc slave",  V_88F6810_PLUS),
 		 MPP_VAR_FUNCTION(3, "pcie0", "rstout",     V_88F6810_PLUS),
-		 MPP_VAR_FUNCTION(4, "spi0",  "mosi",       V_88F6810_PLUS),
-		 MPP_VAR_FUNCTION(5, "pcie1", "rstout",     V_88F6820_PLUS)),
+		 MPP_VAR_FUNCTION(4, "spi0",  "mosi",       V_88F6810_PLUS)),
 	MPP_MODE(16,
 		 MPP_VAR_FUNCTION(0, "gpio",  NULL,         V_88F6810_PLUS),
 		 MPP_VAR_FUNCTION(1, "ge0",   "rxctl",      V_88F6810_PLUS),
 		 MPP_VAR_FUNCTION(2, "ge",    "mdio slave", V_88F6810_PLUS),
 		 MPP_VAR_FUNCTION(3, "m",     "decc_err",   V_88F6810_PLUS),
 		 MPP_VAR_FUNCTION(4, "spi0",  "miso",       V_88F6810_PLUS),
-		 MPP_VAR_FUNCTION(5, "pcie0", "clkreq",     V_88F6810_PLUS)),
+		 MPP_VAR_FUNCTION(5, "pcie0", "clkreq",     V_88F6810_PLUS),
+		 MPP_VAR_FUNCTION(6, "pcie1", "clkreq",     V_88F6820_PLUS)),
 	MPP_MODE(17,
 		 MPP_VAR_FUNCTION(0, "gpio",  NULL,         V_88F6810_PLUS),
 		 MPP_VAR_FUNCTION(1, "ge0",   "rxclk",      V_88F6810_PLUS),
@@ -137,13 +139,12 @@ static struct mvebu_mpp_mode armada_38x_
 		 MPP_VAR_FUNCTION(1, "ge0",   "rxerr",      V_88F6810_PLUS),
 		 MPP_VAR_FUNCTION(2, "ptp",   "trig_gen",   V_88F6810_PLUS),
 		 MPP_VAR_FUNCTION(3, "ua1",   "txd",        V_88F6810_PLUS),
-		 MPP_VAR_FUNCTION(4, "spi0",  "cs0",        V_88F6810_PLUS),
-		 MPP_VAR_FUNCTION(5, "pcie1", "rstout",     V_88F6820_PLUS)),
+		 MPP_VAR_FUNCTION(4, "spi0",  "cs0",        V_88F6810_PLUS)),
 	MPP_MODE(19,
 		 MPP_VAR_FUNCTION(0, "gpio",  NULL,         V_88F6810_PLUS),
 		 MPP_VAR_FUNCTION(1, "ge0",   "col",        V_88F6810_PLUS),
 		 MPP_VAR_FUNCTION(2, "ptp",   "event_req",  V_88F6810_PLUS),
-		 MPP_VAR_FUNCTION(3, "pcie0", "clkreq",     V_88F6810_PLUS),
+		 MPP_VAR_FUNCTION(3, "ge0",   "txerr",      V_88F6810_PLUS),
 		 MPP_VAR_FUNCTION(4, "sata1", "prsnt",      V_88F6810_PLUS),
 		 MPP_VAR_FUNCTION(5, "ua0",   "cts",        V_88F6810_PLUS),
 		 MPP_VAR_FUNCTION(6, "ua1",   "rxd",        V_88F6810_PLUS)),
@@ -151,7 +152,6 @@ static struct mvebu_mpp_mode armada_38x_
 		 MPP_VAR_FUNCTION(0, "gpio",  NULL,         V_88F6810_PLUS),
 		 MPP_VAR_FUNCTION(1, "ge0",   "txclk",      V_88F6810_PLUS),
 		 MPP_VAR_FUNCTION(2, "ptp",   "clk",        V_88F6810_PLUS),
-		 MPP_VAR_FUNCTION(3, "pcie1", "rstout",     V_88F6820_PLUS),
 		 MPP_VAR_FUNCTION(4, "sata0", "prsnt",      V_88F6810_PLUS),
 		 MPP_VAR_FUNCTION(5, "ua0",   "rts",        V_88F6810_PLUS),
 		 MPP_VAR_FUNCTION(6, "ua1",   "txd",        V_88F6810_PLUS)),
@@ -277,35 +277,27 @@ static struct mvebu_mpp_mode armada_38x_
 		 MPP_VAR_FUNCTION(1, "pcie0", "clkreq",     V_88F6810_PLUS),
 		 MPP_VAR_FUNCTION(2, "m",     "vtt_ctrl",   V_88F6810_PLUS),
 		 MPP_VAR_FUNCTION(3, "m",     "decc_err",   V_88F6810_PLUS),
-		 MPP_VAR_FUNCTION(4, "pcie0", "rstout",     V_88F6810_PLUS),
+		 MPP_VAR_FUNCTION(4, "spi1",  "cs2",        V_88F6810_PLUS),
 		 MPP_VAR_FUNCTION(5, "dev",   "clkout",     V_88F6810_PLUS)),
 	MPP_MODE(44,
 		 MPP_VAR_FUNCTION(0, "gpio",  NULL,         V_88F6810_PLUS),
 		 MPP_VAR_FUNCTION(1, "sata0", "prsnt",      V_88F6810_PLUS),
 		 MPP_VAR_FUNCTION(2, "sata1", "prsnt",      V_88F6810_PLUS),
 		 MPP_VAR_FUNCTION(3, "sata2", "prsnt",      V_88F6828),
-		 MPP_VAR_FUNCTION(4, "sata3", "prsnt",      V_88F6828),
-		 MPP_VAR_FUNCTION(5, "pcie0", "rstout",     V_88F6810_PLUS)),
+		 MPP_VAR_FUNCTION(4, "sata3", "prsnt",      V_88F6828)),
 	MPP_MODE(45,
 		 MPP_VAR_FUNCTION(0, "gpio",  NULL,         V_88F6810_PLUS),
 		 MPP_VAR_FUNCTION(1, "ref",   "clk_out0",   V_88F6810_PLUS),
-		 MPP_VAR_FUNCTION(2, "pcie0", "rstout",     V_88F6810_PLUS),
-		 MPP_VAR_FUNCTION(3, "pcie1", "rstout",     V_88F6820_PLUS),
-		 MPP_VAR_FUNCTION(4, "pcie2", "rstout",     V_88F6810_PLUS),
-		 MPP_VAR_FUNCTION(5, "pcie3", "rstout",     V_88F6810_PLUS)),
+		 MPP_VAR_FUNCTION(2, "pcie0", "rstout",     V_88F6810_PLUS)),
 	MPP_MODE(46,
 		 MPP_VAR_FUNCTION(0, "gpio",  NULL,         V_88F6810_PLUS),
 		 MPP_VAR_FUNCTION(1, "ref",   "clk_out1",   V_88F6810_PLUS),
-		 MPP_VAR_FUNCTION(2, "pcie0", "rstout",     V_88F6810_PLUS),
-		 MPP_VAR_FUNCTION(3, "pcie1", "rstout",     V_88F6820_PLUS),
-		 MPP_VAR_FUNCTION(4, "pcie2", "rstout",     V_88F6810_PLUS),
-		 MPP_VAR_FUNCTION(5, "pcie3", "rstout",     V_88F6810_PLUS)),
+		 MPP_VAR_FUNCTION(2, "pcie0", "rstout",     V_88F6810_PLUS)),
 	MPP_MODE(47,
 		 MPP_VAR_FUNCTION(0, "gpio",  NULL,         V_88F6810_PLUS),
 		 MPP_VAR_FUNCTION(1, "sata0", "prsnt",      V_88F6810_PLUS),
 		 MPP_VAR_FUNCTION(2, "sata1", "prsnt",      V_88F6810_PLUS),
 		 MPP_VAR_FUNCTION(3, "sata2", "prsnt",      V_88F6828),
-		 MPP_VAR_FUNCTION(4, "spi1",  "cs2",        V_88F6810_PLUS),
 		 MPP_VAR_FUNCTION(5, "sata3", "prsnt",      V_88F6828)),
 	MPP_MODE(48,
 		 MPP_VAR_FUNCTION(0, "gpio",  NULL,         V_88F6810_PLUS),
@@ -313,18 +305,19 @@ static struct mvebu_mpp_mode armada_38x_
 		 MPP_VAR_FUNCTION(2, "m",     "vtt_ctrl",   V_88F6810_PLUS),
 		 MPP_VAR_FUNCTION(3, "tdm2c", "pclk",       V_88F6810_PLUS),
 		 MPP_VAR_FUNCTION(4, "audio", "mclk",       V_88F6810_PLUS),
-		 MPP_VAR_FUNCTION(5, "sd0",   "d4",         V_88F6810_PLUS)),
+		 MPP_VAR_FUNCTION(5, "sd0",   "d4",         V_88F6810_PLUS),
+		 MPP_VAR_FUNCTION(6, "pcie0", "clkreq",     V_88F6810_PLUS)),
 	MPP_MODE(49,
 		 MPP_VAR_FUNCTION(0, "gpio",  NULL,         V_88F6810_PLUS),
 		 MPP_VAR_FUNCTION(1, "sata2", "prsnt",      V_88F6828),
 		 MPP_VAR_FUNCTION(2, "sata3", "prsnt",      V_88F6828),
 		 MPP_VAR_FUNCTION(3, "tdm2c", "fsync",      V_88F6810_PLUS),
 		 MPP_VAR_FUNCTION(4, "audio", "lrclk",      V_88F6810_PLUS),
-		 MPP_VAR_FUNCTION(5, "sd0",   "d5",         V_88F6810_PLUS)),
+		 MPP_VAR_FUNCTION(5, "sd0",   "d5",         V_88F6810_PLUS),
+		 MPP_VAR_FUNCTION(6, "pcie1", "clkreq",     V_88F6820_PLUS)),
 	MPP_MODE(50,
 		 MPP_VAR_FUNCTION(0, "gpio",  NULL,         V_88F6810_PLUS),
 		 MPP_VAR_FUNCTION(1, "pcie0", "rstout",     V_88F6810_PLUS),
-		 MPP_VAR_FUNCTION(2, "pcie1", "rstout",     V_88F6820_PLUS),
 		 MPP_VAR_FUNCTION(3, "tdm2c", "drx",        V_88F6810_PLUS),
 		 MPP_VAR_FUNCTION(4, "audio", "extclk",     V_88F6810_PLUS),
 		 MPP_VAR_FUNCTION(5, "sd0",   "cmd",        V_88F6810_PLUS)),
@@ -336,7 +329,6 @@ static struct mvebu_mpp_mode armada_38x_
 	MPP_MODE(52,
 		 MPP_VAR_FUNCTION(0, "gpio",  NULL,         V_88F6810_PLUS),
 		 MPP_VAR_FUNCTION(1, "pcie0", "rstout",     V_88F6810_PLUS),
-		 MPP_VAR_FUNCTION(2, "pcie1", "rstout",     V_88F6820_PLUS),
 		 MPP_VAR_FUNCTION(3, "tdm2c", "intn",       V_88F6810_PLUS),
 		 MPP_VAR_FUNCTION(4, "audio", "sdi",        V_88F6810_PLUS),
 		 MPP_VAR_FUNCTION(5, "sd0",   "d6",         V_88F6810_PLUS)),
@@ -352,7 +344,7 @@ static struct mvebu_mpp_mode armada_38x_
 		 MPP_VAR_FUNCTION(1, "sata0", "prsnt",      V_88F6810_PLUS),
 		 MPP_VAR_FUNCTION(2, "sata1", "prsnt",      V_88F6810_PLUS),
 		 MPP_VAR_FUNCTION(3, "pcie0", "rstout",     V_88F6810_PLUS),
-		 MPP_VAR_FUNCTION(4, "pcie1", "rstout",     V_88F6820_PLUS),
+		 MPP_VAR_FUNCTION(4, "ge0",   "txerr",      V_88F6810_PLUS),
 		 MPP_VAR_FUNCTION(5, "sd0",   "d3",         V_88F6810_PLUS)),
 	MPP_MODE(55,
 		 MPP_VAR_FUNCTION(0, "gpio",  NULL,         V_88F6810_PLUS),
@@ -382,7 +374,6 @@ static struct mvebu_mpp_mode armada_38x_
 		 MPP_VAR_FUNCTION(0, "gpio",  NULL,         V_88F6810_PLUS),
 		 MPP_VAR_FUNCTION(1, "pcie0", "rstout",     V_88F6810_PLUS),
 		 MPP_VAR_FUNCTION(2, "i2c1",  "sda",        V_88F6810_PLUS),
-		 MPP_VAR_FUNCTION(3, "pcie1", "rstout",     V_88F6820_PLUS),
 		 MPP_VAR_FUNCTION(4, "spi1",  "cs0",        V_88F6810_PLUS),
 		 MPP_VAR_FUNCTION(5, "sd0",   "d2",         V_88F6810_PLUS)),
 };
@@ -411,7 +402,7 @@ static struct mvebu_mpp_ctrl armada_38x_
 
 static struct pinctrl_gpio_range armada_38x_mpp_gpio_ranges[] = {
 	MPP_GPIO_RANGE(0,   0,  0, 32),
-	MPP_GPIO_RANGE(1,  32, 32, 27),
+	MPP_GPIO_RANGE(1,  32, 32, 28),
 };
 
 static int armada_38x_pinctrl_probe(struct platform_device *pdev)
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/pinctrl/mvebu/pinctrl-armada-39x.c linux-libre-4.1.6-gnu/drivers/pinctrl/mvebu/pinctrl-armada-39x.c
--- linux-libre-4.1-gnu/drivers/pinctrl/mvebu/pinctrl-armada-39x.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/pinctrl/mvebu/pinctrl-armada-39x.c	2015-08-16 23:52:51.000000000 -0400
@@ -380,7 +380,7 @@ static struct mvebu_mpp_ctrl armada_39x_
 
 static struct pinctrl_gpio_range armada_39x_mpp_gpio_ranges[] = {
 	MPP_GPIO_RANGE(0,   0,  0, 32),
-	MPP_GPIO_RANGE(1,  32, 32, 27),
+	MPP_GPIO_RANGE(1,  32, 32, 28),
 };
 
 static int armada_39x_pinctrl_probe(struct platform_device *pdev)
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/pinctrl/mvebu/pinctrl-armada-xp.c linux-libre-4.1.6-gnu/drivers/pinctrl/mvebu/pinctrl-armada-xp.c
--- linux-libre-4.1-gnu/drivers/pinctrl/mvebu/pinctrl-armada-xp.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/pinctrl/mvebu/pinctrl-armada-xp.c	2015-08-16 23:52:51.000000000 -0400
@@ -14,10 +14,7 @@
  * available: mv78230, mv78260 and mv78460. From a pin muxing
  * perspective, the mv78230 has 49 MPP pins. The mv78260 and mv78460
  * both have 67 MPP pins (more GPIOs and address lines for the memory
- * bus mainly). The only difference between the mv78260 and the
- * mv78460 in terms of pin muxing is the addition of two functions on
- * pins 43 and 56 to access the VDD of the CPU2 and 3 (mv78260 has two
- * cores, mv78460 has four cores).
+ * bus mainly).
  */
 
 #include <linux/err.h>
@@ -172,20 +169,17 @@ static struct mvebu_mpp_mode armada_xp_m
 	MPP_MODE(24,
 		 MPP_VAR_FUNCTION(0x0, "gpio", NULL,        V_MV78230_PLUS),
 		 MPP_VAR_FUNCTION(0x1, "sata1", "prsnt",    V_MV78230_PLUS),
-		 MPP_VAR_FUNCTION(0x2, "nf", "bootcs-re",   V_MV78230_PLUS),
 		 MPP_VAR_FUNCTION(0x3, "tdm", "rst",        V_MV78230_PLUS),
 		 MPP_VAR_FUNCTION(0x4, "lcd", "hsync",      V_MV78230_PLUS)),
 	MPP_MODE(25,
 		 MPP_VAR_FUNCTION(0x0, "gpio", NULL,        V_MV78230_PLUS),
 		 MPP_VAR_FUNCTION(0x1, "sata0", "prsnt",    V_MV78230_PLUS),
-		 MPP_VAR_FUNCTION(0x2, "nf", "bootcs-we",   V_MV78230_PLUS),
 		 MPP_VAR_FUNCTION(0x3, "tdm", "pclk",       V_MV78230_PLUS),
 		 MPP_VAR_FUNCTION(0x4, "lcd", "vsync",      V_MV78230_PLUS)),
 	MPP_MODE(26,
 		 MPP_VAR_FUNCTION(0x0, "gpio", NULL,        V_MV78230_PLUS),
 		 MPP_VAR_FUNCTION(0x3, "tdm", "fsync",      V_MV78230_PLUS),
-		 MPP_VAR_FUNCTION(0x4, "lcd", "clk",        V_MV78230_PLUS),
-		 MPP_VAR_FUNCTION(0x5, "vdd", "cpu1-pd",    V_MV78230_PLUS)),
+		 MPP_VAR_FUNCTION(0x4, "lcd", "clk",        V_MV78230_PLUS)),
 	MPP_MODE(27,
 		 MPP_VAR_FUNCTION(0x0, "gpio", NULL,        V_MV78230_PLUS),
 		 MPP_VAR_FUNCTION(0x1, "ptp", "trig",       V_MV78230_PLUS),
@@ -200,8 +194,7 @@ static struct mvebu_mpp_mode armada_xp_m
 		 MPP_VAR_FUNCTION(0x0, "gpio", NULL,        V_MV78230_PLUS),
 		 MPP_VAR_FUNCTION(0x1, "ptp", "clk",        V_MV78230_PLUS),
 		 MPP_VAR_FUNCTION(0x3, "tdm", "int0",       V_MV78230_PLUS),
-		 MPP_VAR_FUNCTION(0x4, "lcd", "ref-clk",    V_MV78230_PLUS),
-		 MPP_VAR_FUNCTION(0x5, "vdd", "cpu0-pd",    V_MV78230_PLUS)),
+		 MPP_VAR_FUNCTION(0x4, "lcd", "ref-clk",    V_MV78230_PLUS)),
 	MPP_MODE(30,
 		 MPP_VAR_FUNCTION(0x0, "gpio", NULL,        V_MV78230_PLUS),
 		 MPP_VAR_FUNCTION(0x1, "sd0", "clk",        V_MV78230_PLUS),
@@ -209,13 +202,11 @@ static struct mvebu_mpp_mode armada_xp_m
 	MPP_MODE(31,
 		 MPP_VAR_FUNCTION(0x0, "gpio", NULL,        V_MV78230_PLUS),
 		 MPP_VAR_FUNCTION(0x1, "sd0", "cmd",        V_MV78230_PLUS),
-		 MPP_VAR_FUNCTION(0x3, "tdm", "int2",       V_MV78230_PLUS),
-		 MPP_VAR_FUNCTION(0x5, "vdd", "cpu0-pd",    V_MV78230_PLUS)),
+		 MPP_VAR_FUNCTION(0x3, "tdm", "int2",       V_MV78230_PLUS)),
 	MPP_MODE(32,
 		 MPP_VAR_FUNCTION(0x0, "gpio", NULL,        V_MV78230_PLUS),
 		 MPP_VAR_FUNCTION(0x1, "sd0", "d0",         V_MV78230_PLUS),
-		 MPP_VAR_FUNCTION(0x3, "tdm", "int3",       V_MV78230_PLUS),
-		 MPP_VAR_FUNCTION(0x5, "vdd", "cpu1-pd",    V_MV78230_PLUS)),
+		 MPP_VAR_FUNCTION(0x3, "tdm", "int3",       V_MV78230_PLUS)),
 	MPP_MODE(33,
 		 MPP_VAR_FUNCTION(0x0, "gpio", NULL,        V_MV78230_PLUS),
 		 MPP_VAR_FUNCTION(0x1, "sd0", "d1",         V_MV78230_PLUS),
@@ -247,7 +238,6 @@ static struct mvebu_mpp_mode armada_xp_m
 		 MPP_VAR_FUNCTION(0x0, "gpio", NULL,        V_MV78230_PLUS),
 		 MPP_VAR_FUNCTION(0x1, "spi", "cs1",        V_MV78230_PLUS),
 		 MPP_VAR_FUNCTION(0x2, "uart2", "cts",      V_MV78230_PLUS),
-		 MPP_VAR_FUNCTION(0x3, "vdd", "cpu1-pd",    V_MV78230_PLUS),
 		 MPP_VAR_FUNCTION(0x4, "lcd", "vga-hsync",  V_MV78230_PLUS),
 		 MPP_VAR_FUNCTION(0x5, "pcie", "clkreq0",   V_MV78230_PLUS)),
 	MPP_MODE(41,
@@ -262,15 +252,13 @@ static struct mvebu_mpp_mode armada_xp_m
 		 MPP_VAR_FUNCTION(0x1, "uart2", "rxd",      V_MV78230_PLUS),
 		 MPP_VAR_FUNCTION(0x2, "uart0", "cts",      V_MV78230_PLUS),
 		 MPP_VAR_FUNCTION(0x3, "tdm", "int7",       V_MV78230_PLUS),
-		 MPP_VAR_FUNCTION(0x4, "tdm-1", "timer",    V_MV78230_PLUS),
-		 MPP_VAR_FUNCTION(0x5, "vdd", "cpu0-pd",    V_MV78230_PLUS)),
+		 MPP_VAR_FUNCTION(0x4, "tdm-1", "timer",    V_MV78230_PLUS)),
 	MPP_MODE(43,
 		 MPP_VAR_FUNCTION(0x0, "gpio", NULL,        V_MV78230_PLUS),
 		 MPP_VAR_FUNCTION(0x1, "uart2", "txd",      V_MV78230_PLUS),
 		 MPP_VAR_FUNCTION(0x2, "uart0", "rts",      V_MV78230_PLUS),
 		 MPP_VAR_FUNCTION(0x3, "spi", "cs3",        V_MV78230_PLUS),
-		 MPP_VAR_FUNCTION(0x4, "pcie", "rstout",    V_MV78230_PLUS),
-		 MPP_VAR_FUNCTION(0x5, "vdd", "cpu2-3-pd",  V_MV78460)),
+		 MPP_VAR_FUNCTION(0x4, "pcie", "rstout",    V_MV78230_PLUS)),
 	MPP_MODE(44,
 		 MPP_VAR_FUNCTION(0x0, "gpio", NULL,        V_MV78230_PLUS),
 		 MPP_VAR_FUNCTION(0x1, "uart2", "cts",      V_MV78230_PLUS),
@@ -299,7 +287,7 @@ static struct mvebu_mpp_mode armada_xp_m
 		 MPP_VAR_FUNCTION(0x5, "pcie", "clkreq3",   V_MV78230_PLUS)),
 	MPP_MODE(48,
 		 MPP_VAR_FUNCTION(0x0, "gpio", NULL,        V_MV78230_PLUS),
-		 MPP_VAR_FUNCTION(0x1, "tclk", NULL,        V_MV78230_PLUS),
+		 MPP_VAR_FUNCTION(0x1, "dev", "clkout",     V_MV78230_PLUS),
 		 MPP_VAR_FUNCTION(0x2, "dev", "burst/last", V_MV78230_PLUS)),
 	MPP_MODE(49,
 		 MPP_VAR_FUNCTION(0x0, "gpio", NULL,        V_MV78260_PLUS),
@@ -321,16 +309,13 @@ static struct mvebu_mpp_mode armada_xp_m
 		 MPP_VAR_FUNCTION(0x1, "dev", "ad19",       V_MV78260_PLUS)),
 	MPP_MODE(55,
 		 MPP_VAR_FUNCTION(0x0, "gpio", NULL,        V_MV78260_PLUS),
-		 MPP_VAR_FUNCTION(0x1, "dev", "ad20",       V_MV78260_PLUS),
-		 MPP_VAR_FUNCTION(0x2, "vdd", "cpu0-pd",    V_MV78260_PLUS)),
+		 MPP_VAR_FUNCTION(0x1, "dev", "ad20",       V_MV78260_PLUS)),
 	MPP_MODE(56,
 		 MPP_VAR_FUNCTION(0x0, "gpio", NULL,        V_MV78260_PLUS),
-		 MPP_VAR_FUNCTION(0x1, "dev", "ad21",       V_MV78260_PLUS),
-		 MPP_VAR_FUNCTION(0x2, "vdd", "cpu1-pd",    V_MV78260_PLUS)),
+		 MPP_VAR_FUNCTION(0x1, "dev", "ad21",       V_MV78260_PLUS)),
 	MPP_MODE(57,
 		 MPP_VAR_FUNCTION(0x0, "gpio", NULL,        V_MV78260_PLUS),
-		 MPP_VAR_FUNCTION(0x1, "dev", "ad22",       V_MV78260_PLUS),
-		 MPP_VAR_FUNCTION(0x2, "vdd", "cpu2-3-pd",  V_MV78460)),
+		 MPP_VAR_FUNCTION(0x1, "dev", "ad22",       V_MV78260_PLUS)),
 	MPP_MODE(58,
 		 MPP_VAR_FUNCTION(0x0, "gpio", NULL,        V_MV78260_PLUS),
 		 MPP_VAR_FUNCTION(0x1, "dev", "ad23",       V_MV78260_PLUS)),
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/pinctrl/pinctrl-zynq.c linux-libre-4.1.6-gnu/drivers/pinctrl/pinctrl-zynq.c
--- linux-libre-4.1-gnu/drivers/pinctrl/pinctrl-zynq.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/pinctrl/pinctrl-zynq.c	2015-08-16 23:52:51.000000000 -0400
@@ -714,12 +714,13 @@ static const char * const gpio0_groups[]
 		.mux_val = mval,			\
 	}
 
-#define DEFINE_ZYNQ_PINMUX_FUNCTION_MUX(fname, mval, mux, mask, shift)	\
+#define DEFINE_ZYNQ_PINMUX_FUNCTION_MUX(fname, mval, offset, mask, shift)\
 	[ZYNQ_PMUX_##fname] = {				\
 		.name = #fname,				\
 		.groups = fname##_groups,		\
 		.ngroups = ARRAY_SIZE(fname##_groups),	\
 		.mux_val = mval,			\
+		.mux = offset,				\
 		.mux_mask = mask,			\
 		.mux_shift = shift,			\
 	}
@@ -744,15 +745,15 @@ static const struct zynq_pinmux_function
 	DEFINE_ZYNQ_PINMUX_FUNCTION(spi1, 0x50),
 	DEFINE_ZYNQ_PINMUX_FUNCTION(sdio0, 0x40),
 	DEFINE_ZYNQ_PINMUX_FUNCTION(sdio0_pc, 0xc),
-	DEFINE_ZYNQ_PINMUX_FUNCTION_MUX(sdio0_wp, 0, 130, ZYNQ_SDIO_WP_MASK,
+	DEFINE_ZYNQ_PINMUX_FUNCTION_MUX(sdio0_wp, 0, 0x130, ZYNQ_SDIO_WP_MASK,
 					ZYNQ_SDIO_WP_SHIFT),
-	DEFINE_ZYNQ_PINMUX_FUNCTION_MUX(sdio0_cd, 0, 130, ZYNQ_SDIO_CD_MASK,
+	DEFINE_ZYNQ_PINMUX_FUNCTION_MUX(sdio0_cd, 0, 0x130, ZYNQ_SDIO_CD_MASK,
 					ZYNQ_SDIO_CD_SHIFT),
 	DEFINE_ZYNQ_PINMUX_FUNCTION(sdio1, 0x40),
 	DEFINE_ZYNQ_PINMUX_FUNCTION(sdio1_pc, 0xc),
-	DEFINE_ZYNQ_PINMUX_FUNCTION_MUX(sdio1_wp, 0, 134, ZYNQ_SDIO_WP_MASK,
+	DEFINE_ZYNQ_PINMUX_FUNCTION_MUX(sdio1_wp, 0, 0x134, ZYNQ_SDIO_WP_MASK,
 					ZYNQ_SDIO_WP_SHIFT),
-	DEFINE_ZYNQ_PINMUX_FUNCTION_MUX(sdio1_cd, 0, 134, ZYNQ_SDIO_CD_MASK,
+	DEFINE_ZYNQ_PINMUX_FUNCTION_MUX(sdio1_cd, 0, 0x134, ZYNQ_SDIO_CD_MASK,
 					ZYNQ_SDIO_CD_SHIFT),
 	DEFINE_ZYNQ_PINMUX_FUNCTION(smc0_nor, 4),
 	DEFINE_ZYNQ_PINMUX_FUNCTION(smc0_nor_cs1, 8),
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/platform/x86/dell-laptop.c linux-libre-4.1.6-gnu/drivers/platform/x86/dell-laptop.c
--- linux-libre-4.1-gnu/drivers/platform/x86/dell-laptop.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/platform/x86/dell-laptop.c	2015-08-16 23:52:51.000000000 -0400
@@ -305,7 +305,6 @@ static const struct dmi_system_id dell_q
 };
 
 static struct calling_interface_buffer *buffer;
-static struct page *bufferpage;
 static DEFINE_MUTEX(buffer_mutex);
 
 static int hwswitch_state;
@@ -1896,12 +1895,11 @@ static int __init dell_init(void)
 	 * Allocate buffer below 4GB for SMI data--only 32-bit physical addr
 	 * is passed to SMI handler.
 	 */
-	bufferpage = alloc_page(GFP_KERNEL | GFP_DMA32);
-	if (!bufferpage) {
+	buffer = (void *)__get_free_page(GFP_KERNEL | GFP_DMA32);
+	if (!buffer) {
 		ret = -ENOMEM;
 		goto fail_buffer;
 	}
-	buffer = page_address(bufferpage);
 
 	ret = dell_setup_rfkill();
 
@@ -1965,7 +1963,7 @@ fail_backlight:
 	cancel_delayed_work_sync(&dell_rfkill_work);
 	dell_cleanup_rfkill();
 fail_rfkill:
-	free_page((unsigned long)bufferpage);
+	free_page((unsigned long)buffer);
 fail_buffer:
 	platform_device_del(platform_device);
 fail_platform_device2:
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/platform/x86/ideapad-laptop.c linux-libre-4.1.6-gnu/drivers/platform/x86/ideapad-laptop.c
--- linux-libre-4.1-gnu/drivers/platform/x86/ideapad-laptop.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/platform/x86/ideapad-laptop.c	2015-08-16 23:52:51.000000000 -0400
@@ -464,8 +464,9 @@ static const struct ideapad_rfk_data ide
 static int ideapad_rfk_set(void *data, bool blocked)
 {
 	struct ideapad_rfk_priv *priv = data;
+	int opcode = ideapad_rfk_data[priv->dev].opcode;
 
-	return write_ec_cmd(priv->priv->adev->handle, priv->dev, !blocked);
+	return write_ec_cmd(priv->priv->adev->handle, opcode, !blocked);
 }
 
 static struct rfkill_ops ideapad_rfk_ops = {
@@ -837,6 +838,13 @@ static const struct dmi_system_id no_hw_
 		},
 	},
 	{
+		.ident = "Lenovo G50-30",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo G50-30"),
+		},
+	},
+	{
 		.ident = "Lenovo Yoga 2 11 / 13 / Pro",
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/power/power_supply_core.c linux-libre-4.1.6-gnu/drivers/power/power_supply_core.c
--- linux-libre-4.1-gnu/drivers/power/power_supply_core.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/power/power_supply_core.c	2015-08-16 23:52:51.000000000 -0400
@@ -30,6 +30,8 @@ EXPORT_SYMBOL_GPL(power_supply_notifier)
 
 static struct device_type power_supply_dev_type;
 
+#define POWER_SUPPLY_DEFERRED_REGISTER_TIME	msecs_to_jiffies(10)
+
 static bool __power_supply_is_supplied_by(struct power_supply *supplier,
 					 struct power_supply *supply)
 {
@@ -121,6 +123,30 @@ void power_supply_changed(struct power_s
 }
 EXPORT_SYMBOL_GPL(power_supply_changed);
 
+/*
+ * Notify that power supply was registered after parent finished the probing.
+ *
+ * Often power supply is registered from driver's probe function. However
+ * calling power_supply_changed() directly from power_supply_register()
+ * would lead to execution of get_property() function provided by the driver
+ * too early - before the probe ends.
+ *
+ * Avoid that by waiting on parent's mutex.
+ */
+static void power_supply_deferred_register_work(struct work_struct *work)
+{
+	struct power_supply *psy = container_of(work, struct power_supply,
+						deferred_register_work.work);
+
+	if (psy->dev.parent)
+		mutex_lock(&psy->dev.parent->mutex);
+
+	power_supply_changed(psy);
+
+	if (psy->dev.parent)
+		mutex_unlock(&psy->dev.parent->mutex);
+}
+
 #ifdef CONFIG_OF
 #include <linux/of.h>
 
@@ -645,6 +671,10 @@ __power_supply_register(struct device *p
 	struct power_supply *psy;
 	int rc;
 
+	if (!parent)
+		pr_warn("%s: Expected proper parent device for '%s'\n",
+			__func__, desc->name);
+
 	psy = kzalloc(sizeof(*psy), GFP_KERNEL);
 	if (!psy)
 		return ERR_PTR(-ENOMEM);
@@ -659,7 +689,6 @@ __power_supply_register(struct device *p
 	dev->release = power_supply_dev_release;
 	dev_set_drvdata(dev, psy);
 	psy->desc = desc;
-	atomic_inc(&psy->use_cnt);
 	if (cfg) {
 		psy->drv_data = cfg->drv_data;
 		psy->of_node = cfg->of_node;
@@ -672,6 +701,8 @@ __power_supply_register(struct device *p
 		goto dev_set_name_failed;
 
 	INIT_WORK(&psy->changed_work, power_supply_changed_work);
+	INIT_DELAYED_WORK(&psy->deferred_register_work,
+			  power_supply_deferred_register_work);
 
 	rc = power_supply_check_supplies(psy);
 	if (rc) {
@@ -700,7 +731,20 @@ __power_supply_register(struct device *p
 	if (rc)
 		goto create_triggers_failed;
 
-	power_supply_changed(psy);
+	/*
+	 * Update use_cnt after any uevents (most notably from device_add()).
+	 * We are here still during driver's probe but
+	 * the power_supply_uevent() calls back driver's get_property
+	 * method so:
+	 * 1. Driver did not assigned the returned struct power_supply,
+	 * 2. Driver could not finish initialization (anything in its probe
+	 *    after calling power_supply_register()).
+	 */
+	atomic_inc(&psy->use_cnt);
+
+	queue_delayed_work(system_power_efficient_wq,
+			   &psy->deferred_register_work,
+			   POWER_SUPPLY_DEFERRED_REGISTER_TIME);
 
 	return psy;
 
@@ -720,7 +764,8 @@ dev_set_name_failed:
 
 /**
  * power_supply_register() - Register new power supply
- * @parent:	Device to be a parent of power supply's device
+ * @parent:	Device to be a parent of power supply's device, usually
+ *		the device which probe function calls this
  * @desc:	Description of power supply, must be valid through whole
  *		lifetime of this power supply
  * @cfg:	Run-time specific configuration accessed during registering,
@@ -741,7 +786,8 @@ EXPORT_SYMBOL_GPL(power_supply_register)
 
 /**
  * power_supply_register() - Register new non-waking-source power supply
- * @parent:	Device to be a parent of power supply's device
+ * @parent:	Device to be a parent of power supply's device, usually
+ *		the device which probe function calls this
  * @desc:	Description of power supply, must be valid through whole
  *		lifetime of this power supply
  * @cfg:	Run-time specific configuration accessed during registering,
@@ -770,7 +816,8 @@ static void devm_power_supply_release(st
 
 /**
  * power_supply_register() - Register managed power supply
- * @parent:	Device to be a parent of power supply's device
+ * @parent:	Device to be a parent of power supply's device, usually
+ *		the device which probe function calls this
  * @desc:	Description of power supply, must be valid through whole
  *		lifetime of this power supply
  * @cfg:	Run-time specific configuration accessed during registering,
@@ -805,7 +852,8 @@ EXPORT_SYMBOL_GPL(devm_power_supply_regi
 
 /**
  * power_supply_register() - Register managed non-waking-source power supply
- * @parent:	Device to be a parent of power supply's device
+ * @parent:	Device to be a parent of power supply's device, usually
+ *		the device which probe function calls this
  * @desc:	Description of power supply, must be valid through whole
  *		lifetime of this power supply
  * @cfg:	Run-time specific configuration accessed during registering,
@@ -849,6 +897,7 @@ void power_supply_unregister(struct powe
 {
 	WARN_ON(atomic_dec_return(&psy->use_cnt));
 	cancel_work_sync(&psy->changed_work);
+	cancel_delayed_work_sync(&psy->deferred_register_work);
 	sysfs_remove_link(&psy->dev.kobj, "powers");
 	power_supply_remove_triggers(psy);
 	psy_unregister_cooler(psy);
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/regulator/core.c linux-libre-4.1.6-gnu/drivers/regulator/core.c
--- linux-libre-4.1-gnu/drivers/regulator/core.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/regulator/core.c	2015-08-16 23:52:51.000000000 -0400
@@ -779,7 +779,7 @@ static int suspend_prepare(struct regula
 static void print_constraints(struct regulator_dev *rdev)
 {
 	struct regulation_constraints *constraints = rdev->constraints;
-	char buf[80] = "";
+	char buf[160] = "";
 	int count = 0;
 	int ret;
 
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/regulator/max77686.c linux-libre-4.1.6-gnu/drivers/regulator/max77686.c
--- linux-libre-4.1-gnu/drivers/regulator/max77686.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/regulator/max77686.c	2015-08-16 23:52:51.000000000 -0400
@@ -88,7 +88,7 @@ enum max77686_ramp_rate {
 };
 
 struct max77686_data {
-	u64 gpio_enabled:MAX77686_REGULATORS;
+	DECLARE_BITMAP(gpio_enabled, MAX77686_REGULATORS);
 
 	/* Array indexed by regulator id */
 	unsigned int opmode[MAX77686_REGULATORS];
@@ -121,7 +121,7 @@ static unsigned int max77686_map_normal_
 	case MAX77686_BUCK8:
 	case MAX77686_BUCK9:
 	case MAX77686_LDO20 ... MAX77686_LDO22:
-		if (max77686->gpio_enabled & (1 << id))
+		if (test_bit(id, max77686->gpio_enabled))
 			return MAX77686_GPIO_CONTROL;
 	}
 
@@ -277,7 +277,7 @@ static int max77686_of_parse_cb(struct d
 	}
 
 	if (gpio_is_valid(config->ena_gpio)) {
-		max77686->gpio_enabled |= (1 << desc->id);
+		set_bit(desc->id, max77686->gpio_enabled);
 
 		return regmap_update_bits(config->regmap, desc->enable_reg,
 					  desc->enable_mask,
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/regulator/s2mps11.c linux-libre-4.1.6-gnu/drivers/regulator/s2mps11.c
--- linux-libre-4.1-gnu/drivers/regulator/s2mps11.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/regulator/s2mps11.c	2015-08-16 23:52:51.000000000 -0400
@@ -34,6 +34,8 @@
 #include <linux/mfd/samsung/s2mps14.h>
 #include <linux/mfd/samsung/s2mpu02.h>
 
+/* The highest number of possible regulators for supported devices. */
+#define S2MPS_REGULATOR_MAX		S2MPS13_REGULATOR_MAX
 struct s2mps11_info {
 	unsigned int rdev_num;
 	int ramp_delay2;
@@ -49,7 +51,7 @@ struct s2mps11_info {
 	 * One bit for each S2MPS13/S2MPS14/S2MPU02 regulator whether
 	 * the suspend mode was enabled.
 	 */
-	unsigned long long s2mps14_suspend_state:50;
+	DECLARE_BITMAP(suspend_state, S2MPS_REGULATOR_MAX);
 
 	/* Array of size rdev_num with GPIO-s for external sleep control */
 	int *ext_control_gpio;
@@ -500,7 +502,7 @@ static int s2mps14_regulator_enable(stru
 	switch (s2mps11->dev_type) {
 	case S2MPS13X:
 	case S2MPS14X:
-		if (s2mps11->s2mps14_suspend_state & (1 << rdev_get_id(rdev)))
+		if (test_bit(rdev_get_id(rdev), s2mps11->suspend_state))
 			val = S2MPS14_ENABLE_SUSPEND;
 		else if (gpio_is_valid(s2mps11->ext_control_gpio[rdev_get_id(rdev)]))
 			val = S2MPS14_ENABLE_EXT_CONTROL;
@@ -508,7 +510,7 @@ static int s2mps14_regulator_enable(stru
 			val = rdev->desc->enable_mask;
 		break;
 	case S2MPU02:
-		if (s2mps11->s2mps14_suspend_state & (1 << rdev_get_id(rdev)))
+		if (test_bit(rdev_get_id(rdev), s2mps11->suspend_state))
 			val = S2MPU02_ENABLE_SUSPEND;
 		else
 			val = rdev->desc->enable_mask;
@@ -562,7 +564,7 @@ static int s2mps14_regulator_set_suspend
 	if (ret < 0)
 		return ret;
 
-	s2mps11->s2mps14_suspend_state |= (1 << rdev_get_id(rdev));
+	set_bit(rdev_get_id(rdev), s2mps11->suspend_state);
 	/*
 	 * Don't enable suspend mode if regulator is already disabled because
 	 * this would effectively for a short time turn on the regulator after
@@ -960,18 +962,22 @@ static int s2mps11_pmic_probe(struct pla
 	case S2MPS11X:
 		s2mps11->rdev_num = ARRAY_SIZE(s2mps11_regulators);
 		regulators = s2mps11_regulators;
+		BUILD_BUG_ON(S2MPS_REGULATOR_MAX < s2mps11->rdev_num);
 		break;
 	case S2MPS13X:
 		s2mps11->rdev_num = ARRAY_SIZE(s2mps13_regulators);
 		regulators = s2mps13_regulators;
+		BUILD_BUG_ON(S2MPS_REGULATOR_MAX < s2mps11->rdev_num);
 		break;
 	case S2MPS14X:
 		s2mps11->rdev_num = ARRAY_SIZE(s2mps14_regulators);
 		regulators = s2mps14_regulators;
+		BUILD_BUG_ON(S2MPS_REGULATOR_MAX < s2mps11->rdev_num);
 		break;
 	case S2MPU02:
 		s2mps11->rdev_num = ARRAY_SIZE(s2mpu02_regulators);
 		regulators = s2mpu02_regulators;
+		BUILD_BUG_ON(S2MPS_REGULATOR_MAX < s2mps11->rdev_num);
 		break;
 	default:
 		dev_err(&pdev->dev, "Invalid device type: %u\n",
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/rtc/rtc-snvs.c linux-libre-4.1.6-gnu/drivers/rtc/rtc-snvs.c
--- linux-libre-4.1-gnu/drivers/rtc/rtc-snvs.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/rtc/rtc-snvs.c	2015-08-16 23:52:51.000000000 -0400
@@ -322,6 +322,13 @@ static int snvs_rtc_suspend(struct devic
 	if (device_may_wakeup(dev))
 		enable_irq_wake(data->irq);
 
+	return 0;
+}
+
+static int snvs_rtc_suspend_noirq(struct device *dev)
+{
+	struct snvs_rtc_data *data = dev_get_drvdata(dev);
+
 	if (data->clk)
 		clk_disable_unprepare(data->clk);
 
@@ -331,23 +338,28 @@ static int snvs_rtc_suspend(struct devic
 static int snvs_rtc_resume(struct device *dev)
 {
 	struct snvs_rtc_data *data = dev_get_drvdata(dev);
-	int ret;
 
 	if (device_may_wakeup(dev))
-		disable_irq_wake(data->irq);
+		return disable_irq_wake(data->irq);
 
-	if (data->clk) {
-		ret = clk_prepare_enable(data->clk);
-		if (ret)
-			return ret;
-	}
+	return 0;
+}
+
+static int snvs_rtc_resume_noirq(struct device *dev)
+{
+	struct snvs_rtc_data *data = dev_get_drvdata(dev);
+
+	if (data->clk)
+		return clk_prepare_enable(data->clk);
 
 	return 0;
 }
 
 static const struct dev_pm_ops snvs_rtc_pm_ops = {
-	.suspend_noirq = snvs_rtc_suspend,
-	.resume_noirq = snvs_rtc_resume,
+	.suspend = snvs_rtc_suspend,
+	.suspend_noirq = snvs_rtc_suspend_noirq,
+	.resume = snvs_rtc_resume,
+	.resume_noirq = snvs_rtc_resume_noirq,
 };
 
 #define SNVS_RTC_PM_OPS	(&snvs_rtc_pm_ops)
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/s390/kvm/virtio_ccw.c linux-libre-4.1.6-gnu/drivers/s390/kvm/virtio_ccw.c
--- linux-libre-4.1-gnu/drivers/s390/kvm/virtio_ccw.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/s390/kvm/virtio_ccw.c	2015-08-16 23:52:51.000000000 -0400
@@ -65,6 +65,7 @@ struct virtio_ccw_device {
 	bool is_thinint;
 	bool going_away;
 	bool device_lost;
+	unsigned int config_ready;
 	void *airq_info;
 };
 
@@ -833,8 +834,11 @@ static void virtio_ccw_get_config(struct
 	if (ret)
 		goto out_free;
 
-	memcpy(vcdev->config, config_area, sizeof(vcdev->config));
-	memcpy(buf, &vcdev->config[offset], len);
+	memcpy(vcdev->config, config_area, offset + len);
+	if (buf)
+		memcpy(buf, &vcdev->config[offset], len);
+	if (vcdev->config_ready < offset + len)
+		vcdev->config_ready = offset + len;
 
 out_free:
 	kfree(config_area);
@@ -857,6 +861,9 @@ static void virtio_ccw_set_config(struct
 	if (!config_area)
 		goto out_free;
 
+	/* Make sure we don't overwrite fields. */
+	if (vcdev->config_ready < offset)
+		virtio_ccw_get_config(vdev, 0, NULL, offset);
 	memcpy(&vcdev->config[offset], buf, len);
 	/* Write the config area to the host. */
 	memcpy(config_area, vcdev->config, sizeof(vcdev->config));
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/scsi/ipr.c linux-libre-4.1.6-gnu/drivers/scsi/ipr.c
--- linux-libre-4.1-gnu/drivers/scsi/ipr.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/scsi/ipr.c	2015-08-16 23:52:51.000000000 -0400
@@ -599,9 +599,10 @@ static void ipr_trc_hook(struct ipr_cmnd
 {
 	struct ipr_trace_entry *trace_entry;
 	struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
+	unsigned int trace_index;
 
-	trace_entry = &ioa_cfg->trace[atomic_add_return
-			(1, &ioa_cfg->trace_index)%IPR_NUM_TRACE_ENTRIES];
+	trace_index = atomic_add_return(1, &ioa_cfg->trace_index) & IPR_TRACE_INDEX_MASK;
+	trace_entry = &ioa_cfg->trace[trace_index];
 	trace_entry->time = jiffies;
 	trace_entry->op_code = ipr_cmd->ioarcb.cmd_pkt.cdb[0];
 	trace_entry->type = type;
@@ -1051,10 +1052,15 @@ static void ipr_send_blocking_cmd(struct
 
 static int ipr_get_hrrq_index(struct ipr_ioa_cfg *ioa_cfg)
 {
+	unsigned int hrrq;
+
 	if (ioa_cfg->hrrq_num == 1)
-		return 0;
-	else
-		return (atomic_add_return(1, &ioa_cfg->hrrq_index) % (ioa_cfg->hrrq_num - 1)) + 1;
+		hrrq = 0;
+	else {
+		hrrq = atomic_add_return(1, &ioa_cfg->hrrq_index);
+		hrrq = (hrrq % (ioa_cfg->hrrq_num - 1)) + 1;
+	}
+	return hrrq;
 }
 
 /**
@@ -6263,21 +6269,23 @@ static void ipr_scsi_done(struct ipr_cmn
 	struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
 	struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
 	u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
-	unsigned long hrrq_flags;
+	unsigned long lock_flags;
 
 	scsi_set_resid(scsi_cmd, be32_to_cpu(ipr_cmd->s.ioasa.hdr.residual_data_len));
 
 	if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) {
 		scsi_dma_unmap(scsi_cmd);
 
-		spin_lock_irqsave(ipr_cmd->hrrq->lock, hrrq_flags);
+		spin_lock_irqsave(ipr_cmd->hrrq->lock, lock_flags);
 		list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
 		scsi_cmd->scsi_done(scsi_cmd);
-		spin_unlock_irqrestore(ipr_cmd->hrrq->lock, hrrq_flags);
+		spin_unlock_irqrestore(ipr_cmd->hrrq->lock, lock_flags);
 	} else {
-		spin_lock_irqsave(ipr_cmd->hrrq->lock, hrrq_flags);
+		spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
+		spin_lock(&ipr_cmd->hrrq->_lock);
 		ipr_erp_start(ioa_cfg, ipr_cmd);
-		spin_unlock_irqrestore(ipr_cmd->hrrq->lock, hrrq_flags);
+		spin_unlock(&ipr_cmd->hrrq->_lock);
+		spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
 	}
 }
 
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/scsi/ipr.h linux-libre-4.1.6-gnu/drivers/scsi/ipr.h
--- linux-libre-4.1-gnu/drivers/scsi/ipr.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/scsi/ipr.h	2015-08-16 23:52:51.000000000 -0400
@@ -272,7 +272,7 @@
 #define IPR_RUNTIME_RESET				0x40000000
 
 #define IPR_IPL_INIT_MIN_STAGE_TIME			5
-#define IPR_IPL_INIT_DEFAULT_STAGE_TIME                 15
+#define IPR_IPL_INIT_DEFAULT_STAGE_TIME                 30
 #define IPR_IPL_INIT_STAGE_UNKNOWN			0x0
 #define IPR_IPL_INIT_STAGE_TRANSOP			0xB0000000
 #define IPR_IPL_INIT_STAGE_MASK				0xff000000
@@ -1486,6 +1486,7 @@ struct ipr_ioa_cfg {
 
 #define IPR_NUM_TRACE_INDEX_BITS	8
 #define IPR_NUM_TRACE_ENTRIES		(1 << IPR_NUM_TRACE_INDEX_BITS)
+#define IPR_TRACE_INDEX_MASK		(IPR_NUM_TRACE_ENTRIES - 1)
 #define IPR_TRACE_SIZE	(sizeof(struct ipr_trace_entry) * IPR_NUM_TRACE_ENTRIES)
 	char trace_start[8];
 #define IPR_TRACE_START_LABEL			"trace"
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/scsi/qla2xxx/qla_dbg.c linux-libre-4.1.6-gnu/drivers/scsi/qla2xxx/qla_dbg.c
--- linux-libre-4.1-gnu/drivers/scsi/qla2xxx/qla_dbg.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/scsi/qla2xxx/qla_dbg.c	2015-08-16 23:52:51.000000000 -0400
@@ -68,7 +68,7 @@
  * |                              |                    | 0xd101-0xd1fe	|
  * |                              |                    | 0xd214-0xd2fe	|
  * | Target Mode		  |	  0xe079       |		|
- * | Target Mode Management	  |	  0xf072       | 0xf002		|
+ * | Target Mode Management	  |	  0xf080       | 0xf002		|
  * |                              |                    | 0xf046-0xf049  |
  * | Target Mode Task Management  |	  0x1000b      |		|
  * ----------------------------------------------------------------------
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/scsi/qla2xxx/qla_init.c linux-libre-4.1.6-gnu/drivers/scsi/qla2xxx/qla_init.c
--- linux-libre-4.1-gnu/drivers/scsi/qla2xxx/qla_init.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/scsi/qla2xxx/qla_init.c	2015-08-16 23:52:51.000000000 -0400
@@ -2924,6 +2924,7 @@ qla2x00_rport_del(void *data)
 	struct fc_rport *rport;
 	scsi_qla_host_t *vha = fcport->vha;
 	unsigned long flags;
+	unsigned long vha_flags;
 
 	spin_lock_irqsave(fcport->vha->host->host_lock, flags);
 	rport = fcport->drport ? fcport->drport: fcport->rport;
@@ -2935,7 +2936,9 @@ qla2x00_rport_del(void *data)
 		 * Release the target mode FC NEXUS in qla_target.c code
 		 * if target mod is enabled.
 		 */
+		spin_lock_irqsave(&vha->hw->hardware_lock, vha_flags);
 		qlt_fc_port_deleted(vha, fcport);
+		spin_unlock_irqrestore(&vha->hw->hardware_lock, vha_flags);
 	}
 }
 
@@ -3303,6 +3306,7 @@ qla2x00_reg_remote_port(scsi_qla_host_t
 	 * Create target mode FC NEXUS in qla_target.c if target mode is
 	 * enabled..
 	 */
+
 	qlt_fc_port_added(vha, fcport);
 
 	spin_lock_irqsave(fcport->vha->host->host_lock, flags);
@@ -3460,20 +3464,43 @@ qla2x00_configure_fabric(scsi_qla_host_t
 			if ((fcport->flags & FCF_FABRIC_DEVICE) == 0)
 				continue;
 
-			if (fcport->scan_state == QLA_FCPORT_SCAN &&
-			    atomic_read(&fcport->state) == FCS_ONLINE) {
-				qla2x00_mark_device_lost(vha, fcport,
-				    ql2xplogiabsentdevice, 0);
-				if (fcport->loop_id != FC_NO_LOOP_ID &&
-				    (fcport->flags & FCF_FCP2_DEVICE) == 0 &&
-				    fcport->port_type != FCT_INITIATOR &&
-				    fcport->port_type != FCT_BROADCAST) {
-					ha->isp_ops->fabric_logout(vha,
-					    fcport->loop_id,
-					    fcport->d_id.b.domain,
-					    fcport->d_id.b.area,
-					    fcport->d_id.b.al_pa);
-					qla2x00_clear_loop_id(fcport);
+			if (fcport->scan_state == QLA_FCPORT_SCAN) {
+				if (qla_ini_mode_enabled(base_vha) &&
+				    atomic_read(&fcport->state) == FCS_ONLINE) {
+					qla2x00_mark_device_lost(vha, fcport,
+					    ql2xplogiabsentdevice, 0);
+					if (fcport->loop_id != FC_NO_LOOP_ID &&
+					    (fcport->flags & FCF_FCP2_DEVICE) == 0 &&
+					    fcport->port_type != FCT_INITIATOR &&
+					    fcport->port_type != FCT_BROADCAST) {
+						ha->isp_ops->fabric_logout(vha,
+						    fcport->loop_id,
+						    fcport->d_id.b.domain,
+						    fcport->d_id.b.area,
+						    fcport->d_id.b.al_pa);
+						qla2x00_clear_loop_id(fcport);
+					}
+				} else if (!qla_ini_mode_enabled(base_vha)) {
+					/*
+					 * In target mode, explicitly kill
+					 * sessions and log out of devices
+					 * that are gone, so that we don't
+					 * end up with an initiator using the
+					 * wrong ACL (if the fabric recycles
+					 * an FC address and we have a stale
+					 * session around) and so that we don't
+					 * report initiators that are no longer
+					 * on the fabric.
+					 */
+					ql_dbg(ql_dbg_tgt_mgt, vha, 0xf077,
+					    "port gone, logging out/killing session: "
+					    "%8phC state 0x%x flags 0x%x fc4_type 0x%x "
+					    "scan_state %d\n",
+					    fcport->port_name,
+					    atomic_read(&fcport->state),
+					    fcport->flags, fcport->fc4_type,
+					    fcport->scan_state);
+					qlt_fc_port_deleted(vha, fcport);
 				}
 			}
 		}
@@ -3494,6 +3521,28 @@ qla2x00_configure_fabric(scsi_qla_host_t
 			    (fcport->flags & FCF_LOGIN_NEEDED) == 0)
 				continue;
 
+			/*
+			 * If we're not an initiator, skip looking for devices
+			 * and logging in.  There's no reason for us to do it,
+			 * and it seems to actively cause problems in target
+			 * mode if we race with the initiator logging into us
+			 * (we might get the "port ID used" status back from
+			 * our login command and log out the initiator, which
+			 * seems to cause havoc).
+			 */
+			if (!qla_ini_mode_enabled(base_vha)) {
+				if (fcport->scan_state == QLA_FCPORT_FOUND) {
+					ql_dbg(ql_dbg_tgt_mgt, vha, 0xf078,
+					    "port %8phC state 0x%x flags 0x%x fc4_type 0x%x "
+					    "scan_state %d (initiator mode disabled; skipping "
+					    "login)\n", fcport->port_name,
+					    atomic_read(&fcport->state),
+					    fcport->flags, fcport->fc4_type,
+					    fcport->scan_state);
+				}
+				continue;
+			}
+
 			if (fcport->loop_id == FC_NO_LOOP_ID) {
 				fcport->loop_id = next_loopid;
 				rval = qla2x00_find_new_loop_id(
@@ -3520,16 +3569,38 @@ qla2x00_configure_fabric(scsi_qla_host_t
 			    test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
 				break;
 
-			/* Find a new loop ID to use. */
-			fcport->loop_id = next_loopid;
-			rval = qla2x00_find_new_loop_id(base_vha, fcport);
-			if (rval != QLA_SUCCESS) {
-				/* Ran out of IDs to use */
-				break;
-			}
+			/*
+			 * If we're not an initiator, skip looking for devices
+			 * and logging in.  There's no reason for us to do it,
+			 * and it seems to actively cause problems in target
+			 * mode if we race with the initiator logging into us
+			 * (we might get the "port ID used" status back from
+			 * our login command and log out the initiator, which
+			 * seems to cause havoc).
+			 */
+			if (qla_ini_mode_enabled(base_vha)) {
+				/* Find a new loop ID to use. */
+				fcport->loop_id = next_loopid;
+				rval = qla2x00_find_new_loop_id(base_vha,
+				    fcport);
+				if (rval != QLA_SUCCESS) {
+					/* Ran out of IDs to use */
+					break;
+				}
 
-			/* Login and update database */
-			qla2x00_fabric_dev_login(vha, fcport, &next_loopid);
+				/* Login and update database */
+				qla2x00_fabric_dev_login(vha, fcport,
+				    &next_loopid);
+			} else {
+				ql_dbg(ql_dbg_tgt_mgt, vha, 0xf079,
+					"new port %8phC state 0x%x flags 0x%x fc4_type "
+					"0x%x scan_state %d (initiator mode disabled; "
+					"skipping login)\n",
+					fcport->port_name,
+					atomic_read(&fcport->state),
+					fcport->flags, fcport->fc4_type,
+					fcport->scan_state);
+			}
 
 			list_move_tail(&fcport->list, &vha->vp_fcports);
 		}
@@ -3725,11 +3796,12 @@ qla2x00_find_all_fabric_devs(scsi_qla_ho
 			fcport->fp_speed = new_fcport->fp_speed;
 
 			/*
-			 * If address the same and state FCS_ONLINE, nothing
-			 * changed.
+			 * If address the same and state FCS_ONLINE
+			 * (or in target mode), nothing changed.
 			 */
 			if (fcport->d_id.b24 == new_fcport->d_id.b24 &&
-			    atomic_read(&fcport->state) == FCS_ONLINE) {
+			    (atomic_read(&fcport->state) == FCS_ONLINE ||
+			     !qla_ini_mode_enabled(base_vha))) {
 				break;
 			}
 
@@ -3749,6 +3821,22 @@ qla2x00_find_all_fabric_devs(scsi_qla_ho
 			 * Log it out if still logged in and mark it for
 			 * relogin later.
 			 */
+			if (!qla_ini_mode_enabled(base_vha)) {
+				ql_dbg(ql_dbg_tgt_mgt, vha, 0xf080,
+					 "port changed FC ID, %8phC"
+					 " old %x:%x:%x (loop_id 0x%04x)-> new %x:%x:%x\n",
+					 fcport->port_name,
+					 fcport->d_id.b.domain,
+					 fcport->d_id.b.area,
+					 fcport->d_id.b.al_pa,
+					 fcport->loop_id,
+					 new_fcport->d_id.b.domain,
+					 new_fcport->d_id.b.area,
+					 new_fcport->d_id.b.al_pa);
+				fcport->d_id.b24 = new_fcport->d_id.b24;
+				break;
+			}
+
 			fcport->d_id.b24 = new_fcport->d_id.b24;
 			fcport->flags |= FCF_LOGIN_NEEDED;
 			if (fcport->loop_id != FC_NO_LOOP_ID &&
@@ -3768,6 +3856,7 @@ qla2x00_find_all_fabric_devs(scsi_qla_ho
 		if (found)
 			continue;
 		/* If device was not in our fcports list, then add it. */
+		new_fcport->scan_state = QLA_FCPORT_FOUND;
 		list_add_tail(&new_fcport->list, new_fcports);
 
 		/* Allocate a new replacement fcport. */
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/scsi/qla2xxx/qla_target.c linux-libre-4.1.6-gnu/drivers/scsi/qla2xxx/qla_target.c
--- linux-libre-4.1-gnu/drivers/scsi/qla2xxx/qla_target.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/scsi/qla2xxx/qla_target.c	2015-08-16 23:52:51.000000000 -0400
@@ -113,6 +113,7 @@ static void qlt_abort_cmd_on_host_reset(
 static void qlt_alloc_qfull_cmd(struct scsi_qla_host *vha,
 	struct atio_from_isp *atio, uint16_t status, int qfull);
 static void qlt_disable_vha(struct scsi_qla_host *vha);
+static void qlt_clear_tgt_db(struct qla_tgt *tgt);
 /*
  * Global Variables
  */
@@ -431,10 +432,10 @@ static int qlt_reset(struct scsi_qla_hos
 
 	loop_id = le16_to_cpu(n->u.isp24.nport_handle);
 	if (loop_id == 0xFFFF) {
-#if 0 /* FIXME: Re-enable Global event handling.. */
 		/* Global event */
-		atomic_inc(&ha->tgt.qla_tgt->tgt_global_resets_count);
-		qlt_clear_tgt_db(ha->tgt.qla_tgt);
+		atomic_inc(&vha->vha_tgt.qla_tgt->tgt_global_resets_count);
+		qlt_clear_tgt_db(vha->vha_tgt.qla_tgt);
+#if 0 /* FIXME: do we need to choose a session here? */
 		if (!list_empty(&ha->tgt.qla_tgt->sess_list)) {
 			sess = list_entry(ha->tgt.qla_tgt->sess_list.next,
 			    typeof(*sess), sess_list_entry);
@@ -782,25 +783,20 @@ void qlt_fc_port_added(struct scsi_qla_h
 
 void qlt_fc_port_deleted(struct scsi_qla_host *vha, fc_port_t *fcport)
 {
-	struct qla_hw_data *ha = vha->hw;
 	struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
 	struct qla_tgt_sess *sess;
-	unsigned long flags;
 
 	if (!vha->hw->tgt.tgt_ops)
 		return;
 
-	if (!tgt || (fcport->port_type != FCT_INITIATOR))
+	if (!tgt)
 		return;
 
-	spin_lock_irqsave(&ha->hardware_lock, flags);
 	if (tgt->tgt_stop) {
-		spin_unlock_irqrestore(&ha->hardware_lock, flags);
 		return;
 	}
 	sess = qlt_find_sess_by_port_name(tgt, fcport->port_name);
 	if (!sess) {
-		spin_unlock_irqrestore(&ha->hardware_lock, flags);
 		return;
 	}
 
@@ -808,7 +804,6 @@ void qlt_fc_port_deleted(struct scsi_qla
 
 	sess->local = 1;
 	qlt_schedule_sess_for_deletion(sess, false);
-	spin_unlock_irqrestore(&ha->hardware_lock, flags);
 }
 
 static inline int test_tgt_sess_count(struct qla_tgt *tgt)
@@ -2347,9 +2342,10 @@ int qlt_xmit_response(struct qla_tgt_cmd
 		res = qlt_build_ctio_crc2_pkt(&prm, vha);
 	else
 		res = qlt_24xx_build_ctio_pkt(&prm, vha);
-	if (unlikely(res != 0))
+	if (unlikely(res != 0)) {
+		vha->req->cnt += full_req_cnt;
 		goto out_unmap_unlock;
-
+	}
 
 	pkt = (struct ctio7_to_24xx *)prm.pkt;
 
@@ -2487,8 +2483,11 @@ int qlt_rdy_to_xfer(struct qla_tgt_cmd *
 	else
 		res = qlt_24xx_build_ctio_pkt(&prm, vha);
 
-	if (unlikely(res != 0))
+	if (unlikely(res != 0)) {
+		vha->req->cnt += prm.req_cnt;
 		goto out_unlock_free_unmap;
+	}
+
 	pkt = (struct ctio7_to_24xx *)prm.pkt;
 	pkt->u.status0.flags |= __constant_cpu_to_le16(CTIO7_FLAGS_DATA_OUT |
 	    CTIO7_FLAGS_STATUS_MODE_0);
@@ -2717,7 +2716,7 @@ static int __qlt_send_term_exchange(stru
 static void qlt_send_term_exchange(struct scsi_qla_host *vha,
 	struct qla_tgt_cmd *cmd, struct atio_from_isp *atio, int ha_locked)
 {
-	unsigned long flags;
+	unsigned long flags = 0;
 	int rc;
 
 	if (qlt_issue_marker(vha, ha_locked) < 0)
@@ -2733,17 +2732,18 @@ static void qlt_send_term_exchange(struc
 	rc = __qlt_send_term_exchange(vha, cmd, atio);
 	if (rc == -ENOMEM)
 		qlt_alloc_qfull_cmd(vha, atio, 0, 0);
-	spin_unlock_irqrestore(&vha->hw->hardware_lock, flags);
 
 done:
 	if (cmd && ((cmd->state != QLA_TGT_STATE_ABORTED) ||
 	    !cmd->cmd_sent_to_fw)) {
-		if (!ha_locked && !in_interrupt())
-			msleep(250); /* just in case */
-
-		qlt_unmap_sg(vha, cmd);
+		if (cmd->sg_mapped)
+			qlt_unmap_sg(vha, cmd);
 		vha->hw->tgt.tgt_ops->free_cmd(cmd);
 	}
+
+	if (!ha_locked)
+		spin_unlock_irqrestore(&vha->hw->hardware_lock, flags);
+
 	return;
 }
 
@@ -3347,6 +3347,11 @@ static struct qla_tgt_cmd *qlt_get_tag(s
 	cmd->loop_id = sess->loop_id;
 	cmd->conf_compl_supported = sess->conf_compl_supported;
 
+	cmd->cmd_flags = 0;
+	cmd->jiffies_at_alloc = get_jiffies_64();
+
+	cmd->reset_count = vha->hw->chip_reset;
+
 	return cmd;
 }
 
@@ -3453,11 +3458,6 @@ static int qlt_handle_cmd_for_atio(struc
 		return -ENOMEM;
 	}
 
-	cmd->cmd_flags = 0;
-	cmd->jiffies_at_alloc = get_jiffies_64();
-
-	cmd->reset_count = vha->hw->chip_reset;
-
 	cmd->cmd_in_wq = 1;
 	cmd->cmd_flags |= BIT_0;
 	INIT_WORK(&cmd->work, qlt_do_work);
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/scsi/scsi_error.c linux-libre-4.1.6-gnu/drivers/scsi/scsi_error.c
--- linux-libre-4.1-gnu/drivers/scsi/scsi_error.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/scsi/scsi_error.c	2015-08-16 23:52:51.000000000 -0400
@@ -944,7 +944,7 @@ void scsi_eh_prep_cmnd(struct scsi_cmnd
 			    scmd->sdb.length);
 		scmd->sdb.table.sgl = &ses->sense_sgl;
 		scmd->sc_data_direction = DMA_FROM_DEVICE;
-		scmd->sdb.table.nents = 1;
+		scmd->sdb.table.nents = scmd->sdb.table.orig_nents = 1;
 		scmd->cmnd[0] = REQUEST_SENSE;
 		scmd->cmnd[4] = scmd->sdb.length;
 		scmd->cmd_len = COMMAND_SIZE(scmd->cmnd[0]);
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/scsi/scsi_lib.c linux-libre-4.1.6-gnu/drivers/scsi/scsi_lib.c
--- linux-libre-4.1-gnu/drivers/scsi/scsi_lib.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/scsi/scsi_lib.c	2015-08-16 23:52:51.000000000 -0400
@@ -583,7 +583,7 @@ static struct scatterlist *scsi_sg_alloc
 
 static void scsi_free_sgtable(struct scsi_data_buffer *sdb, bool mq)
 {
-	if (mq && sdb->table.nents <= SCSI_MAX_SG_SEGMENTS)
+	if (mq && sdb->table.orig_nents <= SCSI_MAX_SG_SEGMENTS)
 		return;
 	__sg_free_table(&sdb->table, SCSI_MAX_SG_SEGMENTS, mq, scsi_sg_free);
 }
@@ -597,8 +597,8 @@ static int scsi_alloc_sgtable(struct scs
 
 	if (mq) {
 		if (nents <= SCSI_MAX_SG_SEGMENTS) {
-			sdb->table.nents = nents;
-			sg_init_table(sdb->table.sgl, sdb->table.nents);
+			sdb->table.nents = sdb->table.orig_nents = nents;
+			sg_init_table(sdb->table.sgl, nents);
 			return 0;
 		}
 		first_chunk = sdb->table.sgl;
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/scsi/scsi_sysfs.c linux-libre-4.1.6-gnu/drivers/scsi/scsi_sysfs.c
--- linux-libre-4.1-gnu/drivers/scsi/scsi_sysfs.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/scsi/scsi_sysfs.c	2015-08-16 23:52:51.000000000 -0400
@@ -859,7 +859,7 @@ sdev_store_queue_depth(struct device *de
 
 	depth = simple_strtoul(buf, NULL, 0);
 
-	if (depth < 1 || depth > sht->can_queue)
+	if (depth < 1 || depth > sdev->host->can_queue)
 		return -EINVAL;
 
 	retval = sht->change_queue_depth(sdev, depth);
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/scsi/scsi_transport_srp.c linux-libre-4.1.6-gnu/drivers/scsi/scsi_transport_srp.c
--- linux-libre-4.1-gnu/drivers/scsi/scsi_transport_srp.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/scsi/scsi_transport_srp.c	2015-08-16 23:52:51.000000000 -0400
@@ -396,6 +396,36 @@ static void srp_reconnect_work(struct wo
 	}
 }
 
+/**
+ * scsi_request_fn_active() - number of kernel threads inside scsi_request_fn()
+ * @shost: SCSI host for which to count the number of scsi_request_fn() callers.
+ *
+ * To do: add support for scsi-mq in this function.
+ */
+static int scsi_request_fn_active(struct Scsi_Host *shost)
+{
+	struct scsi_device *sdev;
+	struct request_queue *q;
+	int request_fn_active = 0;
+
+	shost_for_each_device(sdev, shost) {
+		q = sdev->request_queue;
+
+		spin_lock_irq(q->queue_lock);
+		request_fn_active += q->request_fn_active;
+		spin_unlock_irq(q->queue_lock);
+	}
+
+	return request_fn_active;
+}
+
+/* Wait until ongoing shost->hostt->queuecommand() calls have finished. */
+static void srp_wait_for_queuecommand(struct Scsi_Host *shost)
+{
+	while (scsi_request_fn_active(shost))
+		msleep(20);
+}
+
 static void __rport_fail_io_fast(struct srp_rport *rport)
 {
 	struct Scsi_Host *shost = rport_to_shost(rport);
@@ -409,8 +439,10 @@ static void __rport_fail_io_fast(struct
 
 	/* Involve the LLD if possible to terminate all I/O on the rport. */
 	i = to_srp_internal(shost->transportt);
-	if (i->f->terminate_rport_io)
+	if (i->f->terminate_rport_io) {
+		srp_wait_for_queuecommand(shost);
 		i->f->terminate_rport_io(rport);
+	}
 }
 
 /**
@@ -504,27 +536,6 @@ void srp_start_tl_fail_timers(struct srp
 EXPORT_SYMBOL(srp_start_tl_fail_timers);
 
 /**
- * scsi_request_fn_active() - number of kernel threads inside scsi_request_fn()
- * @shost: SCSI host for which to count the number of scsi_request_fn() callers.
- */
-static int scsi_request_fn_active(struct Scsi_Host *shost)
-{
-	struct scsi_device *sdev;
-	struct request_queue *q;
-	int request_fn_active = 0;
-
-	shost_for_each_device(sdev, shost) {
-		q = sdev->request_queue;
-
-		spin_lock_irq(q->queue_lock);
-		request_fn_active += q->request_fn_active;
-		spin_unlock_irq(q->queue_lock);
-	}
-
-	return request_fn_active;
-}
-
-/**
  * srp_reconnect_rport() - reconnect to an SRP target port
  * @rport: SRP target port.
  *
@@ -559,8 +570,7 @@ int srp_reconnect_rport(struct srp_rport
 	if (res)
 		goto out;
 	scsi_target_block(&shost->shost_gendev);
-	while (scsi_request_fn_active(shost))
-		msleep(20);
+	srp_wait_for_queuecommand(shost);
 	res = rport->state != SRP_RPORT_LOST ? i->f->reconnect(rport) : -ENODEV;
 	pr_debug("%s (state %d): transport.reconnect() returned %d\n",
 		 dev_name(&shost->shost_gendev), rport->state, res);
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/scsi/st.c linux-libre-4.1.6-gnu/drivers/scsi/st.c
--- linux-libre-4.1-gnu/drivers/scsi/st.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/scsi/st.c	2015-08-16 23:52:51.000000000 -0400
@@ -1274,9 +1274,9 @@ static int st_open(struct inode *inode,
 	spin_lock(&st_use_lock);
 	STp->in_use = 0;
 	spin_unlock(&st_use_lock);
-	scsi_tape_put(STp);
 	if (resumed)
 		scsi_autopm_put_device(STp->device);
+	scsi_tape_put(STp);
 	return retval;
 
 }
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/spi/spi.c linux-libre-4.1.6-gnu/drivers/spi/spi.c
--- linux-libre-4.1-gnu/drivers/spi/spi.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/spi/spi.c	2015-08-16 23:52:51.000000000 -0400
@@ -988,9 +988,6 @@ void spi_finalize_current_message(struct
 
 	spin_lock_irqsave(&master->queue_lock, flags);
 	mesg = master->cur_msg;
-	master->cur_msg = NULL;
-
-	queue_kthread_work(&master->kworker, &master->pump_messages);
 	spin_unlock_irqrestore(&master->queue_lock, flags);
 
 	spi_unmap_msg(master, mesg);
@@ -1003,9 +1000,13 @@ void spi_finalize_current_message(struct
 		}
 	}
 
-	trace_spi_message_done(mesg);
-
+	spin_lock_irqsave(&master->queue_lock, flags);
+	master->cur_msg = NULL;
 	master->cur_msg_prepared = false;
+	queue_kthread_work(&master->kworker, &master->pump_messages);
+	spin_unlock_irqrestore(&master->queue_lock, flags);
+
+	trace_spi_message_done(mesg);
 
 	mesg->state = NULL;
 	if (mesg->complete)
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/spi/spi-img-spfi.c linux-libre-4.1.6-gnu/drivers/spi/spi-img-spfi.c
--- linux-libre-4.1-gnu/drivers/spi/spi-img-spfi.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/spi/spi-img-spfi.c	2015-08-16 23:52:51.000000000 -0400
@@ -40,6 +40,7 @@
 #define SPFI_CONTROL_SOFT_RESET			BIT(11)
 #define SPFI_CONTROL_SEND_DMA			BIT(10)
 #define SPFI_CONTROL_GET_DMA			BIT(9)
+#define SPFI_CONTROL_SE			BIT(8)
 #define SPFI_CONTROL_TMODE_SHIFT		5
 #define SPFI_CONTROL_TMODE_MASK			0x7
 #define SPFI_CONTROL_TMODE_SINGLE		0
@@ -491,6 +492,7 @@ static void img_spfi_config(struct spi_m
 	else if (xfer->tx_nbits == SPI_NBITS_QUAD &&
 		 xfer->rx_nbits == SPI_NBITS_QUAD)
 		val |= SPFI_CONTROL_TMODE_QUAD << SPFI_CONTROL_TMODE_SHIFT;
+	val |= SPFI_CONTROL_SE;
 	spfi_writel(spfi, val, SPFI_CONTROL);
 }
 
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/spi/spi-imx.c linux-libre-4.1.6-gnu/drivers/spi/spi-imx.c
--- linux-libre-4.1-gnu/drivers/spi/spi-imx.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/spi/spi-imx.c	2015-08-16 23:52:51.000000000 -0400
@@ -201,8 +201,9 @@ static bool spi_imx_can_dma(struct spi_m
 {
 	struct spi_imx_data *spi_imx = spi_master_get_devdata(master);
 
-	if (spi_imx->dma_is_inited && (transfer->len > spi_imx->rx_wml)
-	    && (transfer->len > spi_imx->tx_wml))
+	if (spi_imx->dma_is_inited
+	    && transfer->len > spi_imx->rx_wml * sizeof(u32)
+	    && transfer->len > spi_imx->tx_wml * sizeof(u32))
 		return true;
 	return false;
 }
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/spi/spi-orion.c linux-libre-4.1.6-gnu/drivers/spi/spi-orion.c
--- linux-libre-4.1-gnu/drivers/spi/spi-orion.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/spi/spi-orion.c	2015-08-16 23:52:51.000000000 -0400
@@ -61,6 +61,12 @@ enum orion_spi_type {
 
 struct orion_spi_dev {
 	enum orion_spi_type	typ;
+	/*
+	 * min_divisor and max_hz should be exclusive, the only we can
+	 * have both is for managing the armada-370-spi case with old
+	 * device tree
+	 */
+	unsigned long		max_hz;
 	unsigned int		min_divisor;
 	unsigned int		max_divisor;
 	u32			prescale_mask;
@@ -387,8 +393,9 @@ static const struct orion_spi_dev orion_
 
 static const struct orion_spi_dev armada_spi_dev_data = {
 	.typ = ARMADA_SPI,
-	.min_divisor = 1,
+	.min_divisor = 4,
 	.max_divisor = 1920,
+	.max_hz = 50000000,
 	.prescale_mask = ARMADA_SPI_CLK_PRESCALE_MASK,
 };
 
@@ -454,7 +461,21 @@ static int orion_spi_probe(struct platfo
 		goto out;
 
 	tclk_hz = clk_get_rate(spi->clk);
-	master->max_speed_hz = DIV_ROUND_UP(tclk_hz, devdata->min_divisor);
+
+	/*
+	 * With old device tree, armada-370-spi could be used with
+	 * Armada XP, however for this SoC the maximum frequency is
+	 * 50MHz instead of tclk/4. On Armada 370, tclk cannot be
+	 * higher than 200MHz. So, in order to be able to handle both
+	 * SoCs, we can take the minimum of 50MHz and tclk/4.
+	 */
+	if (of_device_is_compatible(pdev->dev.of_node,
+					"marvell,armada-370-spi"))
+		master->max_speed_hz = min(devdata->max_hz,
+				DIV_ROUND_UP(tclk_hz, devdata->min_divisor));
+	else
+		master->max_speed_hz =
+			DIV_ROUND_UP(tclk_hz, devdata->min_divisor);
 	master->min_speed_hz = DIV_ROUND_UP(tclk_hz, devdata->max_divisor);
 
 	r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/staging/comedi/drivers/cb_pcimdas.c linux-libre-4.1.6-gnu/drivers/staging/comedi/drivers/cb_pcimdas.c
--- linux-libre-4.1-gnu/drivers/staging/comedi/drivers/cb_pcimdas.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/staging/comedi/drivers/cb_pcimdas.c	2015-08-16 23:52:51.000000000 -0400
@@ -243,7 +243,7 @@ static int cb_pcimdas_ao_insn_write(stru
 	return insn->n;
 }
 
-static int cb_pcimdas_di_insn_read(struct comedi_device *dev,
+static int cb_pcimdas_di_insn_bits(struct comedi_device *dev,
 				   struct comedi_subdevice *s,
 				   struct comedi_insn *insn,
 				   unsigned int *data)
@@ -258,7 +258,7 @@ static int cb_pcimdas_di_insn_read(struc
 	return insn->n;
 }
 
-static int cb_pcimdas_do_insn_write(struct comedi_device *dev,
+static int cb_pcimdas_do_insn_bits(struct comedi_device *dev,
 				    struct comedi_subdevice *s,
 				    struct comedi_insn *insn,
 				    unsigned int *data)
@@ -424,7 +424,7 @@ static int cb_pcimdas_auto_attach(struct
 	s->n_chan	= 4;
 	s->maxdata	= 1;
 	s->range_table	= &range_digital;
-	s->insn_read	= cb_pcimdas_di_insn_read;
+	s->insn_bits	= cb_pcimdas_di_insn_bits;
 
 	/* Digital Output subdevice (main connector) */
 	s = &dev->subdevices[4];
@@ -433,7 +433,7 @@ static int cb_pcimdas_auto_attach(struct
 	s->n_chan	= 4;
 	s->maxdata	= 1;
 	s->range_table	= &range_digital;
-	s->insn_write	= cb_pcimdas_do_insn_write;
+	s->insn_bits	= cb_pcimdas_do_insn_bits;
 
 	/* Counter subdevice (8254) */
 	s = &dev->subdevices[5];
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/staging/lustre/lustre/obdclass/debug.c linux-libre-4.1.6-gnu/drivers/staging/lustre/lustre/obdclass/debug.c
--- linux-libre-4.1-gnu/drivers/staging/lustre/lustre/obdclass/debug.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/staging/lustre/lustre/obdclass/debug.c	2015-08-16 23:52:51.000000000 -0400
@@ -40,7 +40,7 @@
 
 #define DEBUG_SUBSYSTEM D_OTHER
 
-#include <linux/unaligned/access_ok.h>
+#include <asm/unaligned.h>
 
 #include "../include/obd_support.h"
 #include "../include/lustre_debug.h"
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/staging/rtl8712/rtl8712_recv.c linux-libre-4.1.6-gnu/drivers/staging/rtl8712/rtl8712_recv.c
--- linux-libre-4.1-gnu/drivers/staging/rtl8712/rtl8712_recv.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/staging/rtl8712/rtl8712_recv.c	2015-08-16 23:52:51.000000000 -0400
@@ -1056,7 +1056,8 @@ static int recvbuf2recvframe(struct _ada
 		/* for first fragment packet, driver need allocate 1536 +
 		 * drvinfo_sz + RXDESC_SIZE to defrag packet. */
 		if ((mf == 1) && (frag == 0))
-			alloc_sz = 1658;/*1658+6=1664, 1664 is 128 alignment.*/
+			/*1658+6=1664, 1664 is 128 alignment.*/
+			alloc_sz = max_t(u16, tmp_len, 1658);
 		else
 			alloc_sz = tmp_len;
 		/* 2 is for IP header 4 bytes alignment in QoS packet case.
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/staging/vt6655/device_main.c linux-libre-4.1.6-gnu/drivers/staging/vt6655/device_main.c
--- linux-libre-4.1-gnu/drivers/staging/vt6655/device_main.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/staging/vt6655/device_main.c	2015-08-16 23:52:51.000000000 -0400
@@ -807,6 +807,10 @@ static int device_rx_srv(struct vnt_priv
 	     pRD = pRD->next) {
 		if (works++ > 15)
 			break;
+
+		if (!pRD->pRDInfo->skb)
+			break;
+
 		if (vnt_receive_frame(pDevice, pRD)) {
 			if (!device_alloc_rx_buf(pDevice, pRD)) {
 				dev_err(&pDevice->pcid->dev,
@@ -1417,7 +1421,7 @@ static void vnt_bss_info_changed(struct
 
 	priv->current_aid = conf->aid;
 
-	if (changed & BSS_CHANGED_BSSID) {
+	if (changed & BSS_CHANGED_BSSID && conf->bssid) {
 		unsigned long flags;
 
 		spin_lock_irqsave(&priv->lock, flags);
@@ -1482,8 +1486,9 @@ static void vnt_bss_info_changed(struct
 		}
 	}
 
-	if (changed & BSS_CHANGED_ASSOC && priv->op_mode != NL80211_IFTYPE_AP) {
-		if (conf->assoc) {
+	if (changed & (BSS_CHANGED_ASSOC | BSS_CHANGED_BEACON_INFO) &&
+	    priv->op_mode != NL80211_IFTYPE_AP) {
+		if (conf->assoc && conf->beacon_rate) {
 			CARDbUpdateTSF(priv, conf->beacon_rate->hw_value,
 				       conf->sync_tsf);
 
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/staging/vt6656/main_usb.c linux-libre-4.1.6-gnu/drivers/staging/vt6656/main_usb.c
--- linux-libre-4.1-gnu/drivers/staging/vt6656/main_usb.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/staging/vt6656/main_usb.c	2015-08-16 23:52:51.000000000 -0400
@@ -701,7 +701,7 @@ static void vnt_bss_info_changed(struct
 
 	priv->current_aid = conf->aid;
 
-	if (changed & BSS_CHANGED_BSSID)
+	if (changed & BSS_CHANGED_BSSID && conf->bssid)
 		vnt_mac_set_bssid_addr(priv, (u8 *)conf->bssid);
 
 
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/target/iscsi/iscsi_target.c linux-libre-4.1.6-gnu/drivers/target/iscsi/iscsi_target.c
--- linux-libre-4.1-gnu/drivers/target/iscsi/iscsi_target.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/target/iscsi/iscsi_target.c	2015-08-16 23:52:51.000000000 -0400
@@ -4001,7 +4001,13 @@ get_immediate:
 	}
 
 transport_err:
-	iscsit_take_action_for_connection_exit(conn);
+	/*
+	 * Avoid the normal connection failure code-path if this connection
+	 * is still within LOGIN mode, and iscsi_np process context is
+	 * responsible for cleaning up the early connection failure.
+	 */
+	if (conn->conn_state != TARG_CONN_STATE_IN_LOGIN)
+		iscsit_take_action_for_connection_exit(conn);
 out:
 	return 0;
 }
@@ -4093,7 +4099,7 @@ reject:
 
 int iscsi_target_rx_thread(void *arg)
 {
-	int ret;
+	int ret, rc;
 	u8 buffer[ISCSI_HDR_LEN], opcode;
 	u32 checksum = 0, digest = 0;
 	struct iscsi_conn *conn = arg;
@@ -4103,10 +4109,16 @@ int iscsi_target_rx_thread(void *arg)
 	 * connection recovery / failure event can be triggered externally.
 	 */
 	allow_signal(SIGINT);
+	/*
+	 * Wait for iscsi_post_login_handler() to complete before allowing
+	 * incoming iscsi/tcp socket I/O, and/or failing the connection.
+	 */
+	rc = wait_for_completion_interruptible(&conn->rx_login_comp);
+	if (rc < 0)
+		return 0;
 
 	if (conn->conn_transport->transport_type == ISCSI_INFINIBAND) {
 		struct completion comp;
-		int rc;
 
 		init_completion(&comp);
 		rc = wait_for_completion_interruptible(&comp);
@@ -4543,7 +4555,18 @@ static void iscsit_logout_post_handler_c
 	struct iscsi_conn *conn)
 {
 	struct iscsi_session *sess = conn->sess;
-	int sleep = cmpxchg(&conn->tx_thread_active, true, false);
+	int sleep = 1;
+	/*
+	 * Traditional iscsi/tcp will invoke this logic from TX thread
+	 * context during session logout, so clear tx_thread_active and
+	 * sleep if iscsit_close_connection() has not already occured.
+	 *
+	 * Since iser-target invokes this logic from it's own workqueue,
+	 * always sleep waiting for RX/TX thread shutdown to complete
+	 * within iscsit_close_connection().
+	 */
+	if (conn->conn_transport->transport_type == ISCSI_TCP)
+		sleep = cmpxchg(&conn->tx_thread_active, true, false);
 
 	atomic_set(&conn->conn_logout_remove, 0);
 	complete(&conn->conn_logout_comp);
@@ -4557,7 +4580,10 @@ static void iscsit_logout_post_handler_c
 static void iscsit_logout_post_handler_samecid(
 	struct iscsi_conn *conn)
 {
-	int sleep = cmpxchg(&conn->tx_thread_active, true, false);
+	int sleep = 1;
+
+	if (conn->conn_transport->transport_type == ISCSI_TCP)
+		sleep = cmpxchg(&conn->tx_thread_active, true, false);
 
 	atomic_set(&conn->conn_logout_remove, 0);
 	complete(&conn->conn_logout_comp);
@@ -4776,6 +4802,7 @@ int iscsit_release_sessions_for_tpg(stru
 	struct iscsi_session *sess;
 	struct se_portal_group *se_tpg = &tpg->tpg_se_tpg;
 	struct se_session *se_sess, *se_sess_tmp;
+	LIST_HEAD(free_list);
 	int session_count = 0;
 
 	spin_lock_bh(&se_tpg->session_lock);
@@ -4797,14 +4824,17 @@ int iscsit_release_sessions_for_tpg(stru
 		}
 		atomic_set(&sess->session_reinstatement, 1);
 		spin_unlock(&sess->conn_lock);
-		spin_unlock_bh(&se_tpg->session_lock);
 
-		iscsit_free_session(sess);
-		spin_lock_bh(&se_tpg->session_lock);
+		list_move_tail(&se_sess->sess_list, &free_list);
+	}
+	spin_unlock_bh(&se_tpg->session_lock);
+
+	list_for_each_entry_safe(se_sess, se_sess_tmp, &free_list, sess_list) {
+		sess = (struct iscsi_session *)se_sess->fabric_sess_ptr;
 
+		iscsit_free_session(sess);
 		session_count++;
 	}
-	spin_unlock_bh(&se_tpg->session_lock);
 
 	pr_debug("Released %d iSCSI Session(s) from Target Portal"
 			" Group: %hu\n", session_count, tpg->tpgt);
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/target/iscsi/iscsi_target_login.c linux-libre-4.1.6-gnu/drivers/target/iscsi/iscsi_target_login.c
--- linux-libre-4.1-gnu/drivers/target/iscsi/iscsi_target_login.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/target/iscsi/iscsi_target_login.c	2015-08-16 23:52:51.000000000 -0400
@@ -82,6 +82,7 @@ static struct iscsi_login *iscsi_login_i
 	init_completion(&conn->conn_logout_comp);
 	init_completion(&conn->rx_half_close_comp);
 	init_completion(&conn->tx_half_close_comp);
+	init_completion(&conn->rx_login_comp);
 	spin_lock_init(&conn->cmd_lock);
 	spin_lock_init(&conn->conn_usage_lock);
 	spin_lock_init(&conn->immed_queue_lock);
@@ -699,7 +700,7 @@ static void iscsi_post_login_start_timer
 		iscsit_start_nopin_timer(conn);
 }
 
-static int iscsit_start_kthreads(struct iscsi_conn *conn)
+int iscsit_start_kthreads(struct iscsi_conn *conn)
 {
 	int ret = 0;
 
@@ -734,6 +735,7 @@ static int iscsit_start_kthreads(struct
 
 	return 0;
 out_tx:
+	send_sig(SIGINT, conn->tx_thread, 1);
 	kthread_stop(conn->tx_thread);
 	conn->tx_thread_active = false;
 out_bitmap:
@@ -744,7 +746,7 @@ out_bitmap:
 	return ret;
 }
 
-int iscsi_post_login_handler(
+void iscsi_post_login_handler(
 	struct iscsi_np *np,
 	struct iscsi_conn *conn,
 	u8 zero_tsih)
@@ -754,7 +756,6 @@ int iscsi_post_login_handler(
 	struct se_session *se_sess = sess->se_sess;
 	struct iscsi_portal_group *tpg = sess->tpg;
 	struct se_portal_group *se_tpg = &tpg->tpg_se_tpg;
-	int rc;
 
 	iscsit_inc_conn_usage_count(conn);
 
@@ -795,10 +796,6 @@ int iscsi_post_login_handler(
 			sess->sess_ops->InitiatorName);
 		spin_unlock_bh(&sess->conn_lock);
 
-		rc = iscsit_start_kthreads(conn);
-		if (rc)
-			return rc;
-
 		iscsi_post_login_start_timers(conn);
 		/*
 		 * Determine CPU mask to ensure connection's RX and TX kthreads
@@ -807,15 +804,20 @@ int iscsi_post_login_handler(
 		iscsit_thread_get_cpumask(conn);
 		conn->conn_rx_reset_cpumask = 1;
 		conn->conn_tx_reset_cpumask = 1;
-
+		/*
+		 * Wakeup the sleeping iscsi_target_rx_thread() now that
+		 * iscsi_conn is in TARG_CONN_STATE_LOGGED_IN state.
+		 */
+		complete(&conn->rx_login_comp);
 		iscsit_dec_conn_usage_count(conn);
+
 		if (stop_timer) {
 			spin_lock_bh(&se_tpg->session_lock);
 			iscsit_stop_time2retain_timer(sess);
 			spin_unlock_bh(&se_tpg->session_lock);
 		}
 		iscsit_dec_session_usage_count(sess);
-		return 0;
+		return;
 	}
 
 	iscsi_set_session_parameters(sess->sess_ops, conn->param_list, 1);
@@ -856,10 +858,6 @@ int iscsi_post_login_handler(
 		" iSCSI Target Portal Group: %hu\n", tpg->nsessions, tpg->tpgt);
 	spin_unlock_bh(&se_tpg->session_lock);
 
-	rc = iscsit_start_kthreads(conn);
-	if (rc)
-		return rc;
-
 	iscsi_post_login_start_timers(conn);
 	/*
 	 * Determine CPU mask to ensure connection's RX and TX kthreads
@@ -868,10 +866,12 @@ int iscsi_post_login_handler(
 	iscsit_thread_get_cpumask(conn);
 	conn->conn_rx_reset_cpumask = 1;
 	conn->conn_tx_reset_cpumask = 1;
-
+	/*
+	 * Wakeup the sleeping iscsi_target_rx_thread() now that
+	 * iscsi_conn is in TARG_CONN_STATE_LOGGED_IN state.
+	 */
+	complete(&conn->rx_login_comp);
 	iscsit_dec_conn_usage_count(conn);
-
-	return 0;
 }
 
 static void iscsi_handle_login_thread_timeout(unsigned long data)
@@ -1436,23 +1436,12 @@ static int __iscsi_target_login_thread(s
 	if (ret < 0)
 		goto new_sess_out;
 
-	if (!conn->sess) {
-		pr_err("struct iscsi_conn session pointer is NULL!\n");
-		goto new_sess_out;
-	}
-
 	iscsi_stop_login_thread_timer(np);
 
-	if (signal_pending(current))
-		goto new_sess_out;
-
 	if (ret == 1) {
 		tpg_np = conn->tpg_np;
 
-		ret = iscsi_post_login_handler(np, conn, zero_tsih);
-		if (ret < 0)
-			goto new_sess_out;
-
+		iscsi_post_login_handler(np, conn, zero_tsih);
 		iscsit_deaccess_np(np, tpg, tpg_np);
 	}
 
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/target/iscsi/iscsi_target_login.h linux-libre-4.1.6-gnu/drivers/target/iscsi/iscsi_target_login.h
--- linux-libre-4.1-gnu/drivers/target/iscsi/iscsi_target_login.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/target/iscsi/iscsi_target_login.h	2015-08-16 23:52:51.000000000 -0400
@@ -12,7 +12,8 @@ extern int iscsit_accept_np(struct iscsi
 extern int iscsit_get_login_rx(struct iscsi_conn *, struct iscsi_login *);
 extern int iscsit_put_login_tx(struct iscsi_conn *, struct iscsi_login *, u32);
 extern void iscsit_free_conn(struct iscsi_np *, struct iscsi_conn *);
-extern int iscsi_post_login_handler(struct iscsi_np *, struct iscsi_conn *, u8);
+extern int iscsit_start_kthreads(struct iscsi_conn *);
+extern void iscsi_post_login_handler(struct iscsi_np *, struct iscsi_conn *, u8);
 extern void iscsi_target_login_sess_out(struct iscsi_conn *, struct iscsi_np *,
 				bool, bool);
 extern int iscsi_target_login_thread(void *);
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/target/iscsi/iscsi_target_nego.c linux-libre-4.1.6-gnu/drivers/target/iscsi/iscsi_target_nego.c
--- linux-libre-4.1-gnu/drivers/target/iscsi/iscsi_target_nego.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/target/iscsi/iscsi_target_nego.c	2015-08-16 23:52:51.000000000 -0400
@@ -17,6 +17,7 @@
  ******************************************************************************/
 
 #include <linux/ctype.h>
+#include <linux/kthread.h>
 #include <scsi/iscsi_proto.h>
 #include <target/target_core_base.h>
 #include <target/target_core_fabric.h>
@@ -361,10 +362,24 @@ static int iscsi_target_do_tx_login_io(s
 		ntohl(login_rsp->statsn), login->rsp_length);
 
 	padding = ((-login->rsp_length) & 3);
+	/*
+	 * Before sending the last login response containing the transition
+	 * bit for full-feature-phase, go ahead and start up TX/RX threads
+	 * now to avoid potential resource allocation failures after the
+	 * final login response has been sent.
+	 */
+	if (login->login_complete) {
+		int rc = iscsit_start_kthreads(conn);
+		if (rc) {
+			iscsit_tx_login_rsp(conn, ISCSI_STATUS_CLS_TARGET_ERR,
+					    ISCSI_LOGIN_STATUS_NO_RESOURCES);
+			return -1;
+		}
+	}
 
 	if (conn->conn_transport->iscsit_put_login_tx(conn, login,
 					login->rsp_length + padding) < 0)
-		return -1;
+		goto err;
 
 	login->rsp_length		= 0;
 	mutex_lock(&sess->cmdsn_mutex);
@@ -373,6 +388,23 @@ static int iscsi_target_do_tx_login_io(s
 	mutex_unlock(&sess->cmdsn_mutex);
 
 	return 0;
+
+err:
+	if (login->login_complete) {
+		if (conn->rx_thread && conn->rx_thread_active) {
+			send_sig(SIGINT, conn->rx_thread, 1);
+			kthread_stop(conn->rx_thread);
+		}
+		if (conn->tx_thread && conn->tx_thread_active) {
+			send_sig(SIGINT, conn->tx_thread, 1);
+			kthread_stop(conn->tx_thread);
+		}
+		spin_lock(&iscsit_global->ts_bitmap_lock);
+		bitmap_release_region(iscsit_global->ts_bitmap, conn->bitmap_id,
+				      get_order(1));
+		spin_unlock(&iscsit_global->ts_bitmap_lock);
+	}
+	return -1;
 }
 
 static void iscsi_target_sk_data_ready(struct sock *sk)
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/thermal/samsung/exynos_tmu.c linux-libre-4.1.6-gnu/drivers/thermal/samsung/exynos_tmu.c
--- linux-libre-4.1-gnu/drivers/thermal/samsung/exynos_tmu.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/thermal/samsung/exynos_tmu.c	2015-08-16 23:52:51.000000000 -0400
@@ -1209,6 +1209,8 @@ err_clk_sec:
 	if (!IS_ERR(data->clk_sec))
 		clk_unprepare(data->clk_sec);
 err_sensor:
+	if (!IS_ERR_OR_NULL(data->regulator))
+		regulator_disable(data->regulator);
 	thermal_zone_of_sensor_unregister(&pdev->dev, data->tzd);
 
 	return ret;
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/tty/n_tty.c linux-libre-4.1.6-gnu/drivers/tty/n_tty.c
--- linux-libre-4.1-gnu/drivers/tty/n_tty.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/tty/n_tty.c	2015-08-16 23:52:51.000000000 -0400
@@ -1108,19 +1108,29 @@ static void eraser(unsigned char c, stru
  *	Locking: ctrl_lock
  */
 
-static void isig(int sig, struct tty_struct *tty)
+static void __isig(int sig, struct tty_struct *tty)
 {
-	struct n_tty_data *ldata = tty->disc_data;
 	struct pid *tty_pgrp = tty_get_pgrp(tty);
 	if (tty_pgrp) {
 		kill_pgrp(tty_pgrp, sig, 1);
 		put_pid(tty_pgrp);
 	}
+}
 
-	if (!L_NOFLSH(tty)) {
+static void isig(int sig, struct tty_struct *tty)
+{
+	struct n_tty_data *ldata = tty->disc_data;
+
+	if (L_NOFLSH(tty)) {
+		/* signal only */
+		__isig(sig, tty);
+
+	} else { /* signal and flush */
 		up_read(&tty->termios_rwsem);
 		down_write(&tty->termios_rwsem);
 
+		__isig(sig, tty);
+
 		/* clear echo buffer */
 		mutex_lock(&ldata->output_lock);
 		ldata->echo_head = ldata->echo_tail = 0;
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/tty/serial/atmel_serial.c linux-libre-4.1.6-gnu/drivers/tty/serial/atmel_serial.c
--- linux-libre-4.1-gnu/drivers/tty/serial/atmel_serial.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/tty/serial/atmel_serial.c	2015-08-16 23:52:51.000000000 -0400
@@ -315,8 +315,7 @@ static int atmel_config_rs485(struct uar
 	if (rs485conf->flags & SER_RS485_ENABLED) {
 		dev_dbg(port->dev, "Setting UART to RS485\n");
 		atmel_port->tx_done_mask = ATMEL_US_TXEMPTY;
-		if ((rs485conf->delay_rts_after_send) > 0)
-			UART_PUT_TTGR(port, rs485conf->delay_rts_after_send);
+		UART_PUT_TTGR(port, rs485conf->delay_rts_after_send);
 		mode |= ATMEL_US_USMODE_RS485;
 	} else {
 		dev_dbg(port->dev, "Setting UART to RS232\n");
@@ -354,8 +353,7 @@ static void atmel_set_mctrl(struct uart_
 
 	/* override mode to RS485 if needed, otherwise keep the current mode */
 	if (port->rs485.flags & SER_RS485_ENABLED) {
-		if ((port->rs485.delay_rts_after_send) > 0)
-			UART_PUT_TTGR(port, port->rs485.delay_rts_after_send);
+		UART_PUT_TTGR(port, port->rs485.delay_rts_after_send);
 		mode &= ~ATMEL_US_USMODE;
 		mode |= ATMEL_US_USMODE_RS485;
 	}
@@ -2061,8 +2059,7 @@ static void atmel_set_termios(struct uar
 
 	/* mode */
 	if (port->rs485.flags & SER_RS485_ENABLED) {
-		if ((port->rs485.delay_rts_after_send) > 0)
-			UART_PUT_TTGR(port, port->rs485.delay_rts_after_send);
+		UART_PUT_TTGR(port, port->rs485.delay_rts_after_send);
 		mode |= ATMEL_US_USMODE_RS485;
 	} else if (termios->c_cflag & CRTSCTS) {
 		/* RS232 with hardware handshake (RTS/CTS) */
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/tty/serial/imx.c linux-libre-4.1.6-gnu/drivers/tty/serial/imx.c
--- linux-libre-4.1-gnu/drivers/tty/serial/imx.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/tty/serial/imx.c	2015-08-16 23:52:51.000000000 -0400
@@ -1132,11 +1132,6 @@ static int imx_startup(struct uart_port
 	while (!(readl(sport->port.membase + UCR2) & UCR2_SRST) && (--i > 0))
 		udelay(1);
 
-	/* Can we enable the DMA support? */
-	if (is_imx6q_uart(sport) && !uart_console(port) &&
-	    !sport->dma_is_inited)
-		imx_uart_dma_init(sport);
-
 	spin_lock_irqsave(&sport->port.lock, flags);
 
 	/*
@@ -1145,9 +1140,6 @@ static int imx_startup(struct uart_port
 	writel(USR1_RTSD, sport->port.membase + USR1);
 	writel(USR2_ORE, sport->port.membase + USR2);
 
-	if (sport->dma_is_inited && !sport->dma_is_enabled)
-		imx_enable_dma(sport);
-
 	temp = readl(sport->port.membase + UCR1);
 	temp |= UCR1_RRDYEN | UCR1_RTSDEN | UCR1_UARTEN;
 
@@ -1318,6 +1310,11 @@ imx_set_termios(struct uart_port *port,
 			} else {
 				ucr2 |= UCR2_CTSC;
 			}
+
+			/* Can we enable the DMA support? */
+			if (is_imx6q_uart(sport) && !uart_console(port)
+				&& !sport->dma_is_inited)
+				imx_uart_dma_init(sport);
 		} else {
 			termios->c_cflag &= ~CRTSCTS;
 		}
@@ -1434,6 +1431,8 @@ imx_set_termios(struct uart_port *port,
 	if (UART_ENABLE_MS(&sport->port, termios->c_cflag))
 		imx_enable_ms(&sport->port);
 
+	if (sport->dma_is_inited && !sport->dma_is_enabled)
+		imx_enable_dma(sport);
 	spin_unlock_irqrestore(&sport->port.lock, flags);
 }
 
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/tty/serial/Kconfig linux-libre-4.1.6-gnu/drivers/tty/serial/Kconfig
--- linux-libre-4.1-gnu/drivers/tty/serial/Kconfig	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/tty/serial/Kconfig	2015-08-16 23:52:51.000000000 -0400
@@ -241,7 +241,6 @@ config SERIAL_SAMSUNG
 	tristate "Samsung SoC serial support"
 	depends on PLAT_SAMSUNG || ARCH_EXYNOS
 	select SERIAL_CORE
-	select SERIAL_EARLYCON
 	help
 	  Support for the on-chip UARTs on the Samsung S3C24XX series CPUs,
 	  providing /dev/ttySAC0, 1 and 2 (note, some machines may not
@@ -277,6 +276,7 @@ config SERIAL_SAMSUNG_CONSOLE
 	bool "Support for console on Samsung SoC serial port"
 	depends on SERIAL_SAMSUNG=y
 	select SERIAL_CORE_CONSOLE
+	select SERIAL_EARLYCON
 	help
 	  Allow selection of the S3C24XX on-board serial ports for use as
 	  an virtual console.
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/tty/serial/serial_core.c linux-libre-4.1.6-gnu/drivers/tty/serial/serial_core.c
--- linux-libre-4.1-gnu/drivers/tty/serial/serial_core.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/tty/serial/serial_core.c	2015-08-16 23:52:51.000000000 -0400
@@ -1409,7 +1409,7 @@ static void uart_close(struct tty_struct
 	mutex_lock(&port->mutex);
 	uart_shutdown(tty, state);
 	tty_port_tty_set(port, NULL);
-	tty->closing = 0;
+
 	spin_lock_irqsave(&port->lock, flags);
 
 	if (port->blocked_open) {
@@ -1435,6 +1435,7 @@ static void uart_close(struct tty_struct
 	mutex_unlock(&port->mutex);
 
 	tty_ldisc_flush(tty);
+	tty->closing = 0;
 }
 
 static void uart_wait_until_sent(struct tty_struct *tty, int timeout)
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/tty/sysrq.c linux-libre-4.1.6-gnu/drivers/tty/sysrq.c
--- linux-libre-4.1-gnu/drivers/tty/sysrq.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/tty/sysrq.c	2015-08-16 23:52:51.000000000 -0400
@@ -55,9 +55,6 @@
 static int __read_mostly sysrq_enabled = CONFIG_MAGIC_SYSRQ_DEFAULT_ENABLE;
 static bool __read_mostly sysrq_always_enabled;
 
-unsigned short platform_sysrq_reset_seq[] __weak = { KEY_RESERVED };
-int sysrq_reset_downtime_ms __weak;
-
 static bool sysrq_on(void)
 {
 	return sysrq_enabled || sysrq_always_enabled;
@@ -569,6 +566,7 @@ void handle_sysrq(int key)
 EXPORT_SYMBOL(handle_sysrq);
 
 #ifdef CONFIG_INPUT
+static int sysrq_reset_downtime_ms;
 
 /* Simple translation table for the SysRq keys */
 static const unsigned char sysrq_xlate[KEY_CNT] =
@@ -949,23 +947,8 @@ static bool sysrq_handler_registered;
 
 static inline void sysrq_register_handler(void)
 {
-	unsigned short key;
 	int error;
-	int i;
 
-	/* First check if a __weak interface was instantiated. */
-	for (i = 0; i < ARRAY_SIZE(sysrq_reset_seq); i++) {
-		key = platform_sysrq_reset_seq[i];
-		if (key == KEY_RESERVED || key > KEY_MAX)
-			break;
-
-		sysrq_reset_seq[sysrq_reset_seq_len++] = key;
-	}
-
-	/*
-	 * DT configuration takes precedence over anything that would
-	 * have been defined via the __weak interface.
-	 */
 	sysrq_of_get_keyreset_config();
 
 	error = input_register_handler(&sysrq_handler);
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/usb/chipidea/core.c linux-libre-4.1.6-gnu/drivers/usb/chipidea/core.c
--- linux-libre-4.1-gnu/drivers/usb/chipidea/core.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/usb/chipidea/core.c	2015-08-16 23:52:51.000000000 -0400
@@ -1024,7 +1024,18 @@ static struct platform_driver ci_hdrc_dr
 	},
 };
 
-module_platform_driver(ci_hdrc_driver);
+static int __init ci_hdrc_platform_register(void)
+{
+	ci_hdrc_host_driver_init();
+	return platform_driver_register(&ci_hdrc_driver);
+}
+module_init(ci_hdrc_platform_register);
+
+static void __exit ci_hdrc_platform_unregister(void)
+{
+	platform_driver_unregister(&ci_hdrc_driver);
+}
+module_exit(ci_hdrc_platform_unregister);
 
 MODULE_ALIAS("platform:ci_hdrc");
 MODULE_LICENSE("GPL v2");
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/usb/chipidea/host.c linux-libre-4.1.6-gnu/drivers/usb/chipidea/host.c
--- linux-libre-4.1-gnu/drivers/usb/chipidea/host.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/usb/chipidea/host.c	2015-08-16 23:52:51.000000000 -0400
@@ -237,9 +237,12 @@ int ci_hdrc_host_init(struct ci_hdrc *ci
 	rdrv->name	= "host";
 	ci->roles[CI_ROLE_HOST] = rdrv;
 
+	return 0;
+}
+
+void ci_hdrc_host_driver_init(void)
+{
 	ehci_init_driver(&ci_ehci_hc_driver, &ehci_ci_overrides);
 	orig_bus_suspend = ci_ehci_hc_driver.bus_suspend;
 	ci_ehci_hc_driver.bus_suspend = ci_ehci_bus_suspend;
-
-	return 0;
 }
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/usb/chipidea/host.h linux-libre-4.1.6-gnu/drivers/usb/chipidea/host.h
--- linux-libre-4.1-gnu/drivers/usb/chipidea/host.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/usb/chipidea/host.h	2015-08-16 23:52:51.000000000 -0400
@@ -5,6 +5,7 @@
 
 int ci_hdrc_host_init(struct ci_hdrc *ci);
 void ci_hdrc_host_destroy(struct ci_hdrc *ci);
+void ci_hdrc_host_driver_init(void);
 
 #else
 
@@ -17,6 +18,11 @@ static inline void ci_hdrc_host_destroy(
 {
 
 }
+
+static void ci_hdrc_host_driver_init(void)
+{
+
+}
 
 #endif
 
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/usb/class/cdc-acm.c linux-libre-4.1.6-gnu/drivers/usb/class/cdc-acm.c
--- linux-libre-4.1-gnu/drivers/usb/class/cdc-acm.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/usb/class/cdc-acm.c	2015-08-16 23:52:51.000000000 -0400
@@ -1477,6 +1477,11 @@ skip_countries:
 		goto alloc_fail8;
 	}
 
+	if (quirks & CLEAR_HALT_CONDITIONS) {
+		usb_clear_halt(usb_dev, usb_rcvbulkpipe(usb_dev, epread->bEndpointAddress));
+		usb_clear_halt(usb_dev, usb_sndbulkpipe(usb_dev, epwrite->bEndpointAddress));
+	}
+
 	return 0;
 alloc_fail8:
 	if (acm->country_codes) {
@@ -1756,6 +1761,10 @@ static const struct usb_device_id acm_id
 	.driver_info = NO_UNION_NORMAL, /* reports zero length descriptor */
 	},
 
+	{ USB_DEVICE(0x2912, 0x0001), /* ATOL FPrint */
+	.driver_info = CLEAR_HALT_CONDITIONS,
+	},
+
 	/* Nokia S60 phones expose two ACM channels. The first is
 	 * a modem and is picked up by the standard AT-command
 	 * information below. The second is 'vendor-specific' but
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/usb/class/cdc-acm.h linux-libre-4.1.6-gnu/drivers/usb/class/cdc-acm.h
--- linux-libre-4.1-gnu/drivers/usb/class/cdc-acm.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/usb/class/cdc-acm.h	2015-08-16 23:52:51.000000000 -0400
@@ -133,3 +133,4 @@ struct acm {
 #define NO_DATA_INTERFACE		BIT(4)
 #define IGNORE_DEVICE			BIT(5)
 #define QUIRK_CONTROL_LINE_STATE	BIT(6)
+#define CLEAR_HALT_CONDITIONS		BIT(7)
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/usb/core/devio.c linux-libre-4.1.6-gnu/drivers/usb/core/devio.c
--- linux-libre-4.1-gnu/drivers/usb/core/devio.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/usb/core/devio.c	2015-08-16 23:52:51.000000000 -0400
@@ -513,7 +513,7 @@ static void async_completed(struct urb *
 	snoop(&urb->dev->dev, "urb complete\n");
 	snoop_urb(urb->dev, as->userurb, urb->pipe, urb->actual_length,
 			as->status, COMPLETE, NULL, 0);
-	if ((urb->transfer_flags & URB_DIR_MASK) == USB_DIR_IN)
+	if ((urb->transfer_flags & URB_DIR_MASK) == URB_DIR_IN)
 		snoop_urb_data(urb, urb->actual_length);
 
 	if (as->status < 0 && as->bulk_addr && as->status != -ECONNRESET &&
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/usb/core/hcd.c linux-libre-4.1.6-gnu/drivers/usb/core/hcd.c
--- linux-libre-4.1-gnu/drivers/usb/core/hcd.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/usb/core/hcd.c	2015-08-16 23:52:51.000000000 -0400
@@ -1022,9 +1022,12 @@ static int register_root_hub(struct usb_
 				dev_name(&usb_dev->dev), retval);
 		return (retval < 0) ? retval : -EMSGSIZE;
 	}
-	if (usb_dev->speed == USB_SPEED_SUPER) {
+
+	if (le16_to_cpu(usb_dev->descriptor.bcdUSB) >= 0x0201) {
 		retval = usb_get_bos_descriptor(usb_dev);
-		if (retval < 0) {
+		if (!retval) {
+			usb_dev->lpm_capable = usb_device_supports_lpm(usb_dev);
+		} 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);
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/usb/core/hub.c linux-libre-4.1.6-gnu/drivers/usb/core/hub.c
--- linux-libre-4.1-gnu/drivers/usb/core/hub.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/usb/core/hub.c	2015-08-16 23:52:51.000000000 -0400
@@ -122,7 +122,7 @@ struct usb_hub *usb_hub_to_struct_hub(st
 	return usb_get_intfdata(hdev->actconfig->interface[0]);
 }
 
-static int usb_device_supports_lpm(struct usb_device *udev)
+int usb_device_supports_lpm(struct usb_device *udev)
 {
 	/* USB 2.1 (and greater) devices indicate LPM support through
 	 * their USB 2.0 Extended Capabilities BOS descriptor.
@@ -2616,9 +2616,6 @@ static bool use_new_scheme(struct usb_de
 	return USE_NEW_SCHEME(retry);
 }
 
-static int hub_port_reset(struct usb_hub *hub, int port1,
-			struct usb_device *udev, unsigned int delay, bool warm);
-
 /* Is a USB 3.0 port in the Inactive or Compliance Mode state?
  * Port worm reset is required to recover
  */
@@ -2706,44 +2703,6 @@ static int hub_port_wait_reset(struct us
 	return 0;
 }
 
-static void hub_port_finish_reset(struct usb_hub *hub, int port1,
-			struct usb_device *udev, int *status)
-{
-	switch (*status) {
-	case 0:
-		/* TRSTRCY = 10 ms; plus some extra */
-		msleep(10 + 40);
-		if (udev) {
-			struct usb_hcd *hcd = bus_to_hcd(udev->bus);
-
-			update_devnum(udev, 0);
-			/* The xHC may think the device is already reset,
-			 * so ignore the status.
-			 */
-			if (hcd->driver->reset_device)
-				hcd->driver->reset_device(hcd, udev);
-		}
-		/* FALL THROUGH */
-	case -ENOTCONN:
-	case -ENODEV:
-		usb_clear_port_feature(hub->hdev,
-				port1, USB_PORT_FEAT_C_RESET);
-		if (hub_is_superspeed(hub->hdev)) {
-			usb_clear_port_feature(hub->hdev, port1,
-					USB_PORT_FEAT_C_BH_PORT_RESET);
-			usb_clear_port_feature(hub->hdev, port1,
-					USB_PORT_FEAT_C_PORT_LINK_STATE);
-			usb_clear_port_feature(hub->hdev, port1,
-					USB_PORT_FEAT_C_CONNECTION);
-		}
-		if (udev)
-			usb_set_device_state(udev, *status
-					? USB_STATE_NOTATTACHED
-					: USB_STATE_DEFAULT);
-		break;
-	}
-}
-
 /* Handle port reset and port warm(BH) reset (for USB3 protocol ports) */
 static int hub_port_reset(struct usb_hub *hub, int port1,
 			struct usb_device *udev, unsigned int delay, bool warm)
@@ -2767,13 +2726,10 @@ static int hub_port_reset(struct usb_hub
 		 * If the caller hasn't explicitly requested a warm reset,
 		 * double check and see if one is needed.
 		 */
-		status = hub_port_status(hub, port1,
-					&portstatus, &portchange);
-		if (status < 0)
-			goto done;
-
-		if (hub_port_warm_reset_required(hub, port1, portstatus))
-			warm = true;
+		if (hub_port_status(hub, port1, &portstatus, &portchange) == 0)
+			if (hub_port_warm_reset_required(hub, port1,
+							portstatus))
+				warm = true;
 	}
 	clear_bit(port1, hub->warm_reset_bits);
 
@@ -2799,11 +2755,19 @@ static int hub_port_reset(struct usb_hub
 
 		/* Check for disconnect or reset */
 		if (status == 0 || status == -ENOTCONN || status == -ENODEV) {
-			hub_port_finish_reset(hub, port1, udev, &status);
+			usb_clear_port_feature(hub->hdev, port1,
+					USB_PORT_FEAT_C_RESET);
 
 			if (!hub_is_superspeed(hub->hdev))
 				goto done;
 
+			usb_clear_port_feature(hub->hdev, port1,
+					USB_PORT_FEAT_C_BH_PORT_RESET);
+			usb_clear_port_feature(hub->hdev, port1,
+					USB_PORT_FEAT_C_PORT_LINK_STATE);
+			usb_clear_port_feature(hub->hdev, port1,
+					USB_PORT_FEAT_C_CONNECTION);
+
 			/*
 			 * If a USB 3.0 device migrates from reset to an error
 			 * state, re-issue the warm reset.
@@ -2836,6 +2800,26 @@ static int hub_port_reset(struct usb_hub
 	dev_err(&port_dev->dev, "Cannot enable. Maybe the USB cable is bad?\n");
 
 done:
+	if (status == 0) {
+		/* TRSTRCY = 10 ms; plus some extra */
+		msleep(10 + 40);
+		if (udev) {
+			struct usb_hcd *hcd = bus_to_hcd(udev->bus);
+
+			update_devnum(udev, 0);
+			/* The xHC may think the device is already reset,
+			 * so ignore the status.
+			 */
+			if (hcd->driver->reset_device)
+				hcd->driver->reset_device(hcd, udev);
+
+			usb_set_device_state(udev, USB_STATE_DEFAULT);
+		}
+	} else {
+		if (udev)
+			usb_set_device_state(udev, USB_STATE_NOTATTACHED);
+	}
+
 	if (!hub_is_superspeed(hub->hdev))
 		up_read(&ehci_cf_port_reset_rwsem);
 
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/usb/core/usb.h linux-libre-4.1.6-gnu/drivers/usb/core/usb.h
--- linux-libre-4.1-gnu/drivers/usb/core/usb.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/usb/core/usb.h	2015-08-16 23:52:51.000000000 -0400
@@ -65,6 +65,7 @@ extern int  usb_hub_init(void);
 extern void usb_hub_cleanup(void);
 extern int usb_major_init(void);
 extern void usb_major_cleanup(void);
+extern int usb_device_supports_lpm(struct usb_device *udev);
 
 #ifdef	CONFIG_PM
 
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/usb/dwc3/ep0.c linux-libre-4.1.6-gnu/drivers/usb/dwc3/ep0.c
--- linux-libre-4.1-gnu/drivers/usb/dwc3/ep0.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/usb/dwc3/ep0.c	2015-08-16 23:52:51.000000000 -0400
@@ -727,6 +727,10 @@ 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);
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/usb/dwc3/gadget.c linux-libre-4.1.6-gnu/drivers/usb/dwc3/gadget.c
--- linux-libre-4.1-gnu/drivers/usb/dwc3/gadget.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/usb/dwc3/gadget.c	2015-08-16 23:52:51.000000000 -0400
@@ -291,6 +291,8 @@ int dwc3_send_gadget_generic_command(str
 			dwc3_trace(trace_dwc3_gadget,
 					"Command Complete --> %d",
 					DWC3_DGCMD_STATUS(reg));
+			if (DWC3_DGCMD_STATUS(reg))
+				return -EINVAL;
 			return 0;
 		}
 
@@ -328,6 +330,8 @@ int dwc3_send_gadget_ep_cmd(struct dwc3
 			dwc3_trace(trace_dwc3_gadget,
 					"Command Complete --> %d",
 					DWC3_DEPCMD_STATUS(reg));
+			if (DWC3_DEPCMD_STATUS(reg))
+				return -EINVAL;
 			return 0;
 		}
 
@@ -1902,12 +1906,16 @@ static void dwc3_endpoint_transfer_compl
 {
 	unsigned		status = 0;
 	int			clean_busy;
+	u32			is_xfer_complete;
+
+	is_xfer_complete = (event->endpoint_event == DWC3_DEPEVT_XFERCOMPLETE);
 
 	if (event->status & DEPEVT_STATUS_BUSERR)
 		status = -ECONNRESET;
 
 	clean_busy = dwc3_cleanup_done_reqs(dwc, dep, event, status);
-	if (clean_busy)
+	if (clean_busy && (is_xfer_complete ||
+				usb_endpoint_xfer_isoc(dep->endpoint.desc)))
 		dep->flags &= ~DWC3_EP_BUSY;
 
 	/*
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/usb/gadget/composite.c linux-libre-4.1.6-gnu/drivers/usb/gadget/composite.c
--- linux-libre-4.1-gnu/drivers/usb/gadget/composite.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/usb/gadget/composite.c	2015-08-16 23:52:51.000000000 -0400
@@ -1758,10 +1758,13 @@ unknown:
 		 * take such requests too, if that's ever needed:  to work
 		 * in config 0, etc.
 		 */
-		list_for_each_entry(f, &cdev->config->functions, list)
-			if (f->req_match && f->req_match(f, ctrl))
-				goto try_fun_setup;
-		f = NULL;
+		if (cdev->config) {
+			list_for_each_entry(f, &cdev->config->functions, list)
+				if (f->req_match && f->req_match(f, ctrl))
+					goto try_fun_setup;
+			f = NULL;
+		}
+
 		switch (ctrl->bRequestType & USB_RECIP_MASK) {
 		case USB_RECIP_INTERFACE:
 			if (!cdev->config || intf >= MAX_CONFIG_INTERFACES)
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/usb/gadget/function/f_fs.c linux-libre-4.1.6-gnu/drivers/usb/gadget/function/f_fs.c
--- linux-libre-4.1-gnu/drivers/usb/gadget/function/f_fs.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/usb/gadget/function/f_fs.c	2015-08-16 23:52:51.000000000 -0400
@@ -924,7 +924,8 @@ static ssize_t ffs_epfile_write_iter(str
 
 	kiocb->private = p;
 
-	kiocb_set_cancel_fn(kiocb, ffs_aio_cancel);
+	if (p->aio)
+		kiocb_set_cancel_fn(kiocb, ffs_aio_cancel);
 
 	res = ffs_epfile_io(kiocb->ki_filp, p);
 	if (res == -EIOCBQUEUED)
@@ -968,7 +969,8 @@ static ssize_t ffs_epfile_read_iter(stru
 
 	kiocb->private = p;
 
-	kiocb_set_cancel_fn(kiocb, ffs_aio_cancel);
+	if (p->aio)
+		kiocb_set_cancel_fn(kiocb, ffs_aio_cancel);
 
 	res = ffs_epfile_io(kiocb->ki_filp, p);
 	if (res == -EIOCBQUEUED)
@@ -3435,6 +3437,7 @@ done:
 static void ffs_closed(struct ffs_data *ffs)
 {
 	struct ffs_dev *ffs_obj;
+	struct f_fs_opts *opts;
 
 	ENTER();
 	ffs_dev_lock();
@@ -3449,8 +3452,13 @@ static void ffs_closed(struct ffs_data *
 	    ffs_obj->ffs_closed_callback)
 		ffs_obj->ffs_closed_callback(ffs);
 
-	if (!ffs_obj->opts || ffs_obj->opts->no_configfs
-	    || !ffs_obj->opts->func_inst.group.cg_item.ci_parent)
+	if (ffs_obj->opts)
+		opts = ffs_obj->opts;
+	else
+		goto done;
+
+	if (opts->no_configfs || !opts->func_inst.group.cg_item.ci_parent
+	    || !atomic_read(&opts->func_inst.group.cg_item.ci_kref.refcount))
 		goto done;
 
 	unregister_gadget_item(ffs_obj->opts->
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/usb/gadget/function/f_mass_storage.c linux-libre-4.1.6-gnu/drivers/usb/gadget/function/f_mass_storage.c
--- linux-libre-4.1-gnu/drivers/usb/gadget/function/f_mass_storage.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/usb/gadget/function/f_mass_storage.c	2015-08-16 23:52:51.000000000 -0400
@@ -2786,7 +2786,7 @@ int fsg_common_set_nluns(struct fsg_comm
 		return -EINVAL;
 	}
 
-	curlun = kcalloc(nluns, sizeof(*curlun), GFP_KERNEL);
+	curlun = kcalloc(FSG_MAX_LUNS, sizeof(*curlun), GFP_KERNEL);
 	if (unlikely(!curlun))
 		return -ENOMEM;
 
@@ -2796,8 +2796,6 @@ int fsg_common_set_nluns(struct fsg_comm
 	common->luns = curlun;
 	common->nluns = nluns;
 
-	pr_info("Number of LUNs=%d\n", common->nluns);
-
 	return 0;
 }
 EXPORT_SYMBOL_GPL(fsg_common_set_nluns);
@@ -3563,14 +3561,26 @@ static struct usb_function *fsg_alloc(st
 	struct fsg_opts *opts = fsg_opts_from_func_inst(fi);
 	struct fsg_common *common = opts->common;
 	struct fsg_dev *fsg;
+	unsigned nluns, i;
 
 	fsg = kzalloc(sizeof(*fsg), GFP_KERNEL);
 	if (unlikely(!fsg))
 		return ERR_PTR(-ENOMEM);
 
 	mutex_lock(&opts->lock);
+	if (!opts->refcnt) {
+		for (nluns = i = 0; i < FSG_MAX_LUNS; ++i)
+			if (common->luns[i])
+				nluns = i + 1;
+		if (!nluns)
+			pr_warn("No LUNS defined, continuing anyway\n");
+		else
+			common->nluns = nluns;
+		pr_info("Number of LUNs=%u\n", common->nluns);
+	}
 	opts->refcnt++;
 	mutex_unlock(&opts->lock);
+
 	fsg->function.name	= FSG_DRIVER_DESC;
 	fsg->function.bind	= fsg_bind;
 	fsg->function.unbind	= fsg_unbind;
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/usb/gadget/function/f_uac2.c linux-libre-4.1.6-gnu/drivers/usb/gadget/function/f_uac2.c
--- linux-libre-4.1-gnu/drivers/usb/gadget/function/f_uac2.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/usb/gadget/function/f_uac2.c	2015-08-16 23:52:51.000000000 -0400
@@ -1162,14 +1162,14 @@ afunc_set_alt(struct usb_function *fn, u
 			factor = 1000;
 		} else {
 			ep_desc = &hs_epin_desc;
-			factor = 125;
+			factor = 8000;
 		}
 
 		/* pre-compute some values for iso_complete() */
 		uac2->p_framesize = opts->p_ssize *
 				    num_channels(opts->p_chmask);
 		rate = opts->p_srate * uac2->p_framesize;
-		uac2->p_interval = (1 << (ep_desc->bInterval - 1)) * factor;
+		uac2->p_interval = factor / (1 << (ep_desc->bInterval - 1));
 		uac2->p_pktsize = min_t(unsigned int, rate / uac2->p_interval,
 					prm->max_psize);
 
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/usb/gadget/udc/mv_udc_core.c linux-libre-4.1.6-gnu/drivers/usb/gadget/udc/mv_udc_core.c
--- linux-libre-4.1-gnu/drivers/usb/gadget/udc/mv_udc_core.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/usb/gadget/udc/mv_udc_core.c	2015-08-16 23:52:51.000000000 -0400
@@ -2167,7 +2167,7 @@ static int mv_udc_probe(struct platform_
 		return -ENODEV;
 	}
 
-	udc->phy_regs = ioremap(r->start, resource_size(r));
+	udc->phy_regs = devm_ioremap(&pdev->dev, r->start, resource_size(r));
 	if (udc->phy_regs == NULL) {
 		dev_err(&pdev->dev, "failed to map phy I/O memory\n");
 		return -EBUSY;
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/usb/gadget/udc/udc-core.c linux-libre-4.1.6-gnu/drivers/usb/gadget/udc/udc-core.c
--- linux-libre-4.1-gnu/drivers/usb/gadget/udc/udc-core.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/usb/gadget/udc/udc-core.c	2015-08-16 23:52:51.000000000 -0400
@@ -321,6 +321,7 @@ err4:
 
 err3:
 	put_device(&udc->dev);
+	device_del(&gadget->dev);
 
 err2:
 	put_device(&gadget->dev);
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/usb/host/ohci-q.c linux-libre-4.1.6-gnu/drivers/usb/host/ohci-q.c
--- linux-libre-4.1-gnu/drivers/usb/host/ohci-q.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/usb/host/ohci-q.c	2015-08-16 23:52:51.000000000 -0400
@@ -980,10 +980,6 @@ rescan_all:
 		int			completed, modified;
 		__hc32			*prev;
 
-		/* Is this ED already invisible to the hardware? */
-		if (ed->state == ED_IDLE)
-			goto ed_idle;
-
 		/* only take off EDs that the HC isn't using, accounting for
 		 * frame counter wraps and EDs with partially retired TDs
 		 */
@@ -1011,12 +1007,10 @@ skip_ed:
 		}
 
 		/* ED's now officially unlinked, hc doesn't see */
-		ed->state = ED_IDLE;
 		ed->hwHeadP &= ~cpu_to_hc32(ohci, ED_H);
 		ed->hwNextED = 0;
 		wmb();
 		ed->hwINFO &= ~cpu_to_hc32(ohci, ED_SKIP | ED_DEQUEUE);
-ed_idle:
 
 		/* reentrancy:  if we drop the schedule lock, someone might
 		 * have modified this list.  normally it's just prepending
@@ -1087,6 +1081,7 @@ rescan_this:
 		if (list_empty(&ed->td_list)) {
 			*last = ed->ed_next;
 			ed->ed_next = NULL;
+			ed->state = ED_IDLE;
 			list_del(&ed->in_use_list);
 		} else if (ohci->rh_state == OHCI_RH_RUNNING) {
 			*last = ed->ed_next;
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/usb/host/xhci.c linux-libre-4.1.6-gnu/drivers/usb/host/xhci.c
--- linux-libre-4.1-gnu/drivers/usb/host/xhci.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/usb/host/xhci.c	2015-08-16 23:52:51.000000000 -0400
@@ -3453,6 +3453,9 @@ int xhci_discover_or_reset_device(struct
 			return -EINVAL;
 	}
 
+	if (virt_dev->tt_info)
+		old_active_eps = virt_dev->tt_info->active_eps;
+
 	if (virt_dev->udev != udev) {
 		/* If the virt_dev and the udev does not match, this virt_dev
 		 * may belong to another udev.
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/usb/host/xhci.h linux-libre-4.1.6-gnu/drivers/usb/host/xhci.h
--- linux-libre-4.1-gnu/drivers/usb/host/xhci.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/usb/host/xhci.h	2015-08-16 23:52:51.000000000 -0400
@@ -285,6 +285,7 @@ struct xhci_op_regs {
 #define XDEV_U0		(0x0 << 5)
 #define XDEV_U2		(0x2 << 5)
 #define XDEV_U3		(0x3 << 5)
+#define XDEV_INACTIVE	(0x6 << 5)
 #define XDEV_RESUME	(0xf << 5)
 /* true: port has power (see HCC_PPC) */
 #define PORT_POWER	(1 << 9)
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/usb/host/xhci-hub.c linux-libre-4.1.6-gnu/drivers/usb/host/xhci-hub.c
--- linux-libre-4.1-gnu/drivers/usb/host/xhci-hub.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/usb/host/xhci-hub.c	2015-08-16 23:52:51.000000000 -0400
@@ -484,10 +484,13 @@ static void xhci_hub_report_usb3_link_st
 	u32 pls = status_reg & PORT_PLS_MASK;
 
 	/* resume state is a xHCI internal state.
-	 * Do not report it to usb core.
+	 * Do not report it to usb core, instead, pretend to be U3,
+	 * thus usb core knows it's not ready for transfer
 	 */
-	if (pls == XDEV_RESUME)
+	if (pls == XDEV_RESUME) {
+		*status |= USB_SS_PORT_LS_U3;
 		return;
+	}
 
 	/* When the CAS bit is set then warm reset
 	 * should be performed on port
@@ -588,7 +591,14 @@ static u32 xhci_get_port_status(struct u
 		status |= USB_PORT_STAT_C_RESET << 16;
 	/* USB3.0 only */
 	if (hcd->speed == HCD_USB3) {
-		if ((raw_port_status & PORT_PLC))
+		/* Port link change with port in resume state should not be
+		 * reported to usbcore, as this is an internal state to be
+		 * handled by xhci driver. Reporting PLC to usbcore may
+		 * cause usbcore clearing PLC first and port change event
+		 * irq won't be generated.
+		 */
+		if ((raw_port_status & PORT_PLC) &&
+			(raw_port_status & PORT_PLS_MASK) != XDEV_RESUME)
 			status |= USB_PORT_STAT_C_LINK_STATE << 16;
 		if ((raw_port_status & PORT_WRC))
 			status |= USB_PORT_STAT_C_BH_RESET << 16;
@@ -1120,10 +1130,10 @@ int xhci_bus_suspend(struct usb_hcd *hcd
 	spin_lock_irqsave(&xhci->lock, flags);
 
 	if (hcd->self.root_hub->do_remote_wakeup) {
-		if (bus_state->resuming_ports) {
+		if (bus_state->resuming_ports ||	/* USB2 */
+		    bus_state->port_remote_wakeup) {	/* USB3 */
 			spin_unlock_irqrestore(&xhci->lock, flags);
-			xhci_dbg(xhci, "suspend failed because "
-						"a port is resuming\n");
+			xhci_dbg(xhci, "suspend failed because a port is resuming\n");
 			return -EBUSY;
 		}
 	}
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/usb/host/xhci-mem.c linux-libre-4.1.6-gnu/drivers/usb/host/xhci-mem.c
--- linux-libre-4.1-gnu/drivers/usb/host/xhci-mem.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/usb/host/xhci-mem.c	2015-08-16 23:52:51.000000000 -0400
@@ -1427,10 +1427,10 @@ int xhci_endpoint_init(struct xhci_hcd *
 		/* Attempt to use the ring cache */
 		if (virt_dev->num_rings_cached == 0)
 			return -ENOMEM;
+		virt_dev->num_rings_cached--;
 		virt_dev->eps[ep_index].new_ring =
 			virt_dev->ring_cache[virt_dev->num_rings_cached];
 		virt_dev->ring_cache[virt_dev->num_rings_cached] = NULL;
-		virt_dev->num_rings_cached--;
 		xhci_reinit_cached_ring(xhci, virt_dev->eps[ep_index].new_ring,
 					1, type);
 	}
@@ -1792,7 +1792,8 @@ void xhci_mem_cleanup(struct xhci_hcd *x
 	int size;
 	int i, j, num_ports;
 
-	del_timer_sync(&xhci->cmd_timer);
+	if (timer_pending(&xhci->cmd_timer))
+		del_timer_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);
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/usb/host/xhci-ring.c linux-libre-4.1.6-gnu/drivers/usb/host/xhci-ring.c
--- linux-libre-4.1-gnu/drivers/usb/host/xhci-ring.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/usb/host/xhci-ring.c	2015-08-16 23:52:51.000000000 -0400
@@ -82,7 +82,7 @@ dma_addr_t xhci_trb_virt_to_dma(struct x
 		return 0;
 	/* offset in TRBs */
 	segment_offset = trb - seg->trbs;
-	if (segment_offset > TRBS_PER_SEGMENT)
+	if (segment_offset >= TRBS_PER_SEGMENT)
 		return 0;
 	return seg->dma + (segment_offset * sizeof(*trb));
 }
@@ -1546,6 +1546,9 @@ static void handle_port_status(struct xh
 		usb_hcd_resume_root_hub(hcd);
 	}
 
+	if (hcd->speed == HCD_USB3 && (temp & PORT_PLS_MASK) == XDEV_INACTIVE)
+		bus_state->port_remote_wakeup &= ~(1 << faked_port_index);
+
 	if ((temp & PORT_PLC) && (temp & PORT_PLS_MASK) == XDEV_RESUME) {
 		xhci_dbg(xhci, "port resume event for port %d\n", port_id);
 
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/usb/musb/musb_virthub.c linux-libre-4.1.6-gnu/drivers/usb/musb/musb_virthub.c
--- linux-libre-4.1-gnu/drivers/usb/musb/musb_virthub.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/usb/musb/musb_virthub.c	2015-08-16 23:52:51.000000000 -0400
@@ -273,9 +273,7 @@ static int musb_has_gadget(struct musb *
 #ifdef CONFIG_USB_MUSB_HOST
 	return 1;
 #else
-	if (musb->port_mode == MUSB_PORT_MODE_HOST)
-		return 1;
-	return musb->g.dev.driver != NULL;
+	return musb->port_mode == MUSB_PORT_MODE_HOST;
 #endif
 }
 
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/usb/phy/phy-mxs-usb.c linux-libre-4.1.6-gnu/drivers/usb/phy/phy-mxs-usb.c
--- linux-libre-4.1-gnu/drivers/usb/phy/phy-mxs-usb.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/usb/phy/phy-mxs-usb.c	2015-08-16 23:52:51.000000000 -0400
@@ -217,6 +217,9 @@ static bool mxs_phy_get_vbus_status(stru
 {
 	unsigned int vbus_value;
 
+	if (!mxs_phy->regmap_anatop)
+		return false;
+
 	if (mxs_phy->port_id == 0)
 		regmap_read(mxs_phy->regmap_anatop,
 			ANADIG_USB1_VBUS_DET_STAT,
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/usb/serial/cp210x.c linux-libre-4.1.6-gnu/drivers/usb/serial/cp210x.c
--- linux-libre-4.1-gnu/drivers/usb/serial/cp210x.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/usb/serial/cp210x.c	2015-08-16 23:52:51.000000000 -0400
@@ -187,6 +187,7 @@ static const struct usb_device_id id_tab
 	{ USB_DEVICE(0x1FB9, 0x0602) }, /* Lake Shore Model 648 Magnet Power Supply */
 	{ USB_DEVICE(0x1FB9, 0x0700) }, /* Lake Shore Model 737 VSM Controller */
 	{ USB_DEVICE(0x1FB9, 0x0701) }, /* Lake Shore Model 776 Hall Matrix */
+	{ USB_DEVICE(0x2626, 0xEA60) }, /* Aruba Networks 7xxx USB Serial Console */
 	{ USB_DEVICE(0x3195, 0xF190) }, /* Link Instruments MSO-19 */
 	{ USB_DEVICE(0x3195, 0xF280) }, /* Link Instruments MSO-28 */
 	{ USB_DEVICE(0x3195, 0xF281) }, /* Link Instruments MSO-28 */
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/usb/serial/option.c linux-libre-4.1.6-gnu/drivers/usb/serial/option.c
--- linux-libre-4.1-gnu/drivers/usb/serial/option.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/usb/serial/option.c	2015-08-16 23:52:51.000000000 -0400
@@ -1099,6 +1099,8 @@ static const struct usb_device_id option
 	{ USB_DEVICE(QUALCOMM_VENDOR_ID, 0x9000)}, /* SIMCom SIM5218 */
 	{ USB_DEVICE_INTERFACE_CLASS(SIERRA_VENDOR_ID, 0x68c0, 0xff),
 	  .driver_info = (kernel_ulong_t)&sierra_mc73xx_blacklist }, /* MC73xx */
+	{ USB_DEVICE_INTERFACE_CLASS(SIERRA_VENDOR_ID, 0x9041, 0xff),
+	  .driver_info = (kernel_ulong_t)&sierra_mc73xx_blacklist }, /* MC7305/MC7355 */
 	{ 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),
@@ -1765,6 +1767,7 @@ static const struct usb_device_id option
 	{ USB_DEVICE_AND_INTERFACE_INFO(0x2001, 0x7d03, 0xff, 0x00, 0x00) },
 	{ 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_INTERFACE_CLASS(0x2020, 0x4000, 0xff) },                /* OLICARD300 - MT6225 */
 	{ USB_DEVICE(INOVIA_VENDOR_ID, INOVIA_SEW858) },
 	{ USB_DEVICE(VIATELECOM_VENDOR_ID, VIATELECOM_PRODUCT_CDS7) },
 	{ } /* Terminating entry */
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/usb/serial/qcserial.c linux-libre-4.1.6-gnu/drivers/usb/serial/qcserial.c
--- linux-libre-4.1-gnu/drivers/usb/serial/qcserial.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/usb/serial/qcserial.c	2015-08-16 23:52:51.000000000 -0400
@@ -145,7 +145,6 @@ static const struct usb_device_id id_tab
 	{DEVICE_SWI(0x1199, 0x901c)},	/* Sierra Wireless EM7700 */
 	{DEVICE_SWI(0x1199, 0x901f)},	/* Sierra Wireless EM7355 */
 	{DEVICE_SWI(0x1199, 0x9040)},	/* Sierra Wireless Modem */
-	{DEVICE_SWI(0x1199, 0x9041)},	/* Sierra Wireless MC7305/MC7355 */
 	{DEVICE_SWI(0x1199, 0x9051)},	/* Netgear AirCard 340U */
 	{DEVICE_SWI(0x1199, 0x9053)},	/* Sierra Wireless Modem */
 	{DEVICE_SWI(0x1199, 0x9054)},	/* Sierra Wireless Modem */
@@ -158,6 +157,7 @@ static const struct usb_device_id id_tab
 	{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 */
 
 	/* Huawei devices */
 	{DEVICE_HWI(0x03f0, 0x581d)},	/* HP lt4112 LTE/HSPA+ Gobi 4G Modem (Huawei me906e) */
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/usb/serial/sierra.c linux-libre-4.1.6-gnu/drivers/usb/serial/sierra.c
--- linux-libre-4.1-gnu/drivers/usb/serial/sierra.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/usb/serial/sierra.c	2015-08-16 23:52:51.000000000 -0400
@@ -289,6 +289,7 @@ static const struct usb_device_id id_tab
 	{ USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x68AA, 0xFF, 0xFF, 0xFF),
 	  .driver_info = (kernel_ulong_t)&direct_ip_interface_blacklist
 	},
+	{ USB_DEVICE(0x1199, 0x68AB) }, /* Sierra Wireless AR8550 */
 	/* AT&T Direct IP LTE modems */
 	{ USB_DEVICE_AND_INTERFACE_INFO(0x0F3D, 0x68AA, 0xFF, 0xFF, 0xFF),
 	  .driver_info = (kernel_ulong_t)&direct_ip_interface_blacklist
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/usb/serial/usb-serial.c linux-libre-4.1.6-gnu/drivers/usb/serial/usb-serial.c
--- linux-libre-4.1-gnu/drivers/usb/serial/usb-serial.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/usb/serial/usb-serial.c	2015-08-16 23:52:51.000000000 -0400
@@ -1306,6 +1306,7 @@ static void __exit usb_serial_exit(void)
 	tty_unregister_driver(usb_serial_tty_driver);
 	put_tty_driver(usb_serial_tty_driver);
 	bus_unregister(&usb_serial_bus_type);
+	idr_destroy(&serial_minors);
 }
 
 
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/usb/storage/unusual_devs.h linux-libre-4.1.6-gnu/drivers/usb/storage/unusual_devs.h
--- linux-libre-4.1-gnu/drivers/usb/storage/unusual_devs.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/usb/storage/unusual_devs.h	2015-08-16 23:52:51.000000000 -0400
@@ -2065,6 +2065,18 @@ UNUSUAL_DEV( 0x1908, 0x3335, 0x0200, 0x0
 		USB_SC_DEVICE, USB_PR_DEVICE, NULL,
 		US_FL_NO_READ_DISC_INFO ),
 
+/* Reported by Oliver Neukum <oneukum@suse.com>
+ * This device morphes spontaneously into another device if the access
+ * pattern of Windows isn't followed. Thus writable media would be dirty
+ * if the initial instance is used. So the device is limited to its
+ * virtual CD.
+ * And yes, the concept that BCD goes up to 9 is not heeded */
+UNUSUAL_DEV( 0x19d2, 0x1225, 0x0000, 0xffff,
+		"ZTE,Incorporated",
+		"ZTE WCDMA Technologies MSM",
+		USB_SC_DEVICE, USB_PR_DEVICE, NULL,
+		US_FL_SINGLE_LUN ),
+
 /* Reported by Sven Geggus <sven-usbst@geggus.net>
  * This encrypted pen drive returns bogus data for the initial READ(10).
  */
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/vhost/vhost.c linux-libre-4.1.6-gnu/drivers/vhost/vhost.c
--- linux-libre-4.1-gnu/drivers/vhost/vhost.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/vhost/vhost.c	2015-08-16 23:52:51.000000000 -0400
@@ -886,6 +886,7 @@ long vhost_dev_ioctl(struct vhost_dev *d
 		}
 		if (eventfp != d->log_file) {
 			filep = d->log_file;
+			d->log_file = eventfp;
 			ctx = d->log_ctx;
 			d->log_ctx = eventfp ?
 				eventfd_ctx_fileget(eventfp) : NULL;
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/video/fbdev/mxsfb.c linux-libre-4.1.6-gnu/drivers/video/fbdev/mxsfb.c
--- linux-libre-4.1-gnu/drivers/video/fbdev/mxsfb.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/video/fbdev/mxsfb.c	2015-08-16 23:52:51.000000000 -0400
@@ -316,6 +316,18 @@ static int mxsfb_check_var(struct fb_var
 	return 0;
 }
 
+static inline void mxsfb_enable_axi_clk(struct mxsfb_info *host)
+{
+	if (host->clk_axi)
+		clk_prepare_enable(host->clk_axi);
+}
+
+static inline void mxsfb_disable_axi_clk(struct mxsfb_info *host)
+{
+	if (host->clk_axi)
+		clk_disable_unprepare(host->clk_axi);
+}
+
 static void mxsfb_enable_controller(struct fb_info *fb_info)
 {
 	struct mxsfb_info *host = to_imxfb_host(fb_info);
@@ -333,14 +345,13 @@ static void mxsfb_enable_controller(stru
 		}
 	}
 
-	if (host->clk_axi)
-		clk_prepare_enable(host->clk_axi);
-
 	if (host->clk_disp_axi)
 		clk_prepare_enable(host->clk_disp_axi);
 	clk_prepare_enable(host->clk);
 	clk_set_rate(host->clk, PICOS2KHZ(fb_info->var.pixclock) * 1000U);
 
+	mxsfb_enable_axi_clk(host);
+
 	/* if it was disabled, re-enable the mode again */
 	writel(CTRL_DOTCLK_MODE, host->base + LCDC_CTRL + REG_SET);
 
@@ -380,11 +391,11 @@ static void mxsfb_disable_controller(str
 	reg = readl(host->base + LCDC_VDCTRL4);
 	writel(reg & ~VDCTRL4_SYNC_SIGNALS_ON, host->base + LCDC_VDCTRL4);
 
+	mxsfb_disable_axi_clk(host);
+
 	clk_disable_unprepare(host->clk);
 	if (host->clk_disp_axi)
 		clk_disable_unprepare(host->clk_disp_axi);
-	if (host->clk_axi)
-		clk_disable_unprepare(host->clk_axi);
 
 	host->enabled = 0;
 
@@ -421,6 +432,8 @@ static int mxsfb_set_par(struct fb_info
 		mxsfb_disable_controller(fb_info);
 	}
 
+	mxsfb_enable_axi_clk(host);
+
 	/* clear the FIFOs */
 	writel(CTRL1_FIFO_CLEAR, host->base + LCDC_CTRL1 + REG_SET);
 
@@ -438,6 +451,7 @@ static int mxsfb_set_par(struct fb_info
 		ctrl |= CTRL_SET_WORD_LENGTH(3);
 		switch (host->ld_intf_width) {
 		case STMLCDIF_8BIT:
+			mxsfb_disable_axi_clk(host);
 			dev_err(&host->pdev->dev,
 					"Unsupported LCD bus width mapping\n");
 			return -EINVAL;
@@ -451,6 +465,7 @@ static int mxsfb_set_par(struct fb_info
 		writel(CTRL1_SET_BYTE_PACKAGING(0x7), host->base + LCDC_CTRL1);
 		break;
 	default:
+		mxsfb_disable_axi_clk(host);
 		dev_err(&host->pdev->dev, "Unhandled color depth of %u\n",
 				fb_info->var.bits_per_pixel);
 		return -EINVAL;
@@ -504,6 +519,8 @@ static int mxsfb_set_par(struct fb_info
 			fb_info->fix.line_length * fb_info->var.yoffset,
 			host->base + host->devdata->next_buf);
 
+	mxsfb_disable_axi_clk(host);
+
 	if (reenable)
 		mxsfb_enable_controller(fb_info);
 
@@ -582,10 +599,14 @@ static int mxsfb_pan_display(struct fb_v
 
 	offset = fb_info->fix.line_length * var->yoffset;
 
+	mxsfb_enable_axi_clk(host);
+
 	/* update on next VSYNC */
 	writel(fb_info->fix.smem_start + offset,
 			host->base + host->devdata->next_buf);
 
+	mxsfb_disable_axi_clk(host);
+
 	return 0;
 }
 
@@ -608,13 +629,17 @@ static int mxsfb_restore_mode(struct mxs
 	unsigned line_count;
 	unsigned period;
 	unsigned long pa, fbsize;
-	int bits_per_pixel, ofs;
+	int bits_per_pixel, ofs, ret = 0;
 	u32 transfer_count, vdctrl0, vdctrl2, vdctrl3, vdctrl4, ctrl;
 
+	mxsfb_enable_axi_clk(host);
+
 	/* Only restore the mode when the controller is running */
 	ctrl = readl(host->base + LCDC_CTRL);
-	if (!(ctrl & CTRL_RUN))
-		return -EINVAL;
+	if (!(ctrl & CTRL_RUN)) {
+		ret = -EINVAL;
+		goto err;
+	}
 
 	vdctrl0 = readl(host->base + LCDC_VDCTRL0);
 	vdctrl2 = readl(host->base + LCDC_VDCTRL2);
@@ -635,7 +660,8 @@ static int mxsfb_restore_mode(struct mxs
 		break;
 	case 1:
 	default:
-		return -EINVAL;
+		ret = -EINVAL;
+		goto err;
 	}
 
 	fb_info->var.bits_per_pixel = bits_per_pixel;
@@ -673,10 +699,14 @@ static int mxsfb_restore_mode(struct mxs
 
 	pa = readl(host->base + host->devdata->cur_buf);
 	fbsize = fb_info->fix.line_length * vmode->yres;
-	if (pa < fb_info->fix.smem_start)
-		return -EINVAL;
-	if (pa + fbsize > fb_info->fix.smem_start + fb_info->fix.smem_len)
-		return -EINVAL;
+	if (pa < fb_info->fix.smem_start) {
+		ret = -EINVAL;
+		goto err;
+	}
+	if (pa + fbsize > fb_info->fix.smem_start + fb_info->fix.smem_len) {
+		ret = -EINVAL;
+		goto err;
+	}
 	ofs = pa - fb_info->fix.smem_start;
 	if (ofs) {
 		memmove(fb_info->screen_base, fb_info->screen_base + ofs, fbsize);
@@ -689,7 +719,11 @@ static int mxsfb_restore_mode(struct mxs
 	clk_prepare_enable(host->clk);
 	host->enabled = 1;
 
-	return 0;
+err:
+	if (ret)
+		mxsfb_disable_axi_clk(host);
+
+	return ret;
 }
 
 static int mxsfb_init_fbinfo_dt(struct mxsfb_info *host,
@@ -915,7 +949,9 @@ static int mxsfb_probe(struct platform_d
 	}
 
 	if (!host->enabled) {
+		mxsfb_enable_axi_clk(host);
 		writel(0, host->base + LCDC_CTRL);
+		mxsfb_disable_axi_clk(host);
 		mxsfb_set_par(fb_info);
 		mxsfb_enable_controller(fb_info);
 	}
@@ -954,11 +990,15 @@ static void mxsfb_shutdown(struct platfo
 	struct fb_info *fb_info = platform_get_drvdata(pdev);
 	struct mxsfb_info *host = to_imxfb_host(fb_info);
 
+	mxsfb_enable_axi_clk(host);
+
 	/*
 	 * Force stop the LCD controller as keeping it running during reboot
 	 * might interfere with the BootROM's boot mode pads sampling.
 	 */
 	writel(CTRL_RUN, host->base + LCDC_CTRL + REG_CLR);
+
+	mxsfb_disable_axi_clk(host);
 }
 
 static struct platform_driver mxsfb_driver = {
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/w1/slaves/w1_therm.c linux-libre-4.1.6-gnu/drivers/w1/slaves/w1_therm.c
--- linux-libre-4.1-gnu/drivers/w1/slaves/w1_therm.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/w1/slaves/w1_therm.c	2015-08-16 23:52:51.000000000 -0400
@@ -59,16 +59,32 @@ MODULE_ALIAS("w1-family-" __stringify(W1
 static int w1_strong_pullup = 1;
 module_param_named(strong_pullup, w1_strong_pullup, int, 0);
 
+struct w1_therm_family_data {
+	uint8_t rom[9];
+	atomic_t refcnt;
+};
+
+/* return the address of the refcnt in the family data */
+#define THERM_REFCNT(family_data) \
+	(&((struct w1_therm_family_data*)family_data)->refcnt)
+
 static int w1_therm_add_slave(struct w1_slave *sl)
 {
-	sl->family_data = kzalloc(9, GFP_KERNEL);
+	sl->family_data = kzalloc(sizeof(struct w1_therm_family_data),
+		GFP_KERNEL);
 	if (!sl->family_data)
 		return -ENOMEM;
+	atomic_set(THERM_REFCNT(sl->family_data), 1);
 	return 0;
 }
 
 static void w1_therm_remove_slave(struct w1_slave *sl)
 {
+	int refcnt = atomic_sub_return(1, THERM_REFCNT(sl->family_data));
+	while(refcnt) {
+		msleep(1000);
+		refcnt = atomic_read(THERM_REFCNT(sl->family_data));
+	}
 	kfree(sl->family_data);
 	sl->family_data = NULL;
 }
@@ -194,13 +210,22 @@ static ssize_t w1_slave_show(struct devi
 	struct w1_slave *sl = dev_to_w1_slave(device);
 	struct w1_master *dev = sl->master;
 	u8 rom[9], crc, verdict, external_power;
-	int i, max_trying = 10;
+	int i, ret, max_trying = 10;
 	ssize_t c = PAGE_SIZE;
+	u8 *family_data = sl->family_data;
 
-	i = mutex_lock_interruptible(&dev->bus_mutex);
-	if (i != 0)
-		return i;
+	ret = mutex_lock_interruptible(&dev->bus_mutex);
+	if (ret != 0)
+		goto post_unlock;
+
+	if(!sl->family_data)
+	{
+		ret = -ENODEV;
+		goto pre_unlock;
+	}
 
+	/* prevent the slave from going away in sleep */
+	atomic_inc(THERM_REFCNT(family_data));
 	memset(rom, 0, sizeof(rom));
 
 	while (max_trying--) {
@@ -230,17 +255,19 @@ static ssize_t w1_slave_show(struct devi
 				mutex_unlock(&dev->bus_mutex);
 
 				sleep_rem = msleep_interruptible(tm);
-				if (sleep_rem != 0)
-					return -EINTR;
+				if (sleep_rem != 0) {
+					ret = -EINTR;
+					goto post_unlock;
+				}
 
-				i = mutex_lock_interruptible(&dev->bus_mutex);
-				if (i != 0)
-					return i;
+				ret = mutex_lock_interruptible(&dev->bus_mutex);
+				if (ret != 0)
+					goto post_unlock;
 			} else if (!w1_strong_pullup) {
 				sleep_rem = msleep_interruptible(tm);
 				if (sleep_rem != 0) {
-					mutex_unlock(&dev->bus_mutex);
-					return -EINTR;
+					ret = -EINTR;
+					goto pre_unlock;
 				}
 			}
 
@@ -269,19 +296,24 @@ static ssize_t w1_slave_show(struct devi
 	c -= snprintf(buf + PAGE_SIZE - c, c, ": crc=%02x %s\n",
 			   crc, (verdict) ? "YES" : "NO");
 	if (verdict)
-		memcpy(sl->family_data, rom, sizeof(rom));
+		memcpy(family_data, rom, sizeof(rom));
 	else
 		dev_warn(device, "Read failed CRC check\n");
 
 	for (i = 0; i < 9; ++i)
 		c -= snprintf(buf + PAGE_SIZE - c, c, "%02x ",
-			      ((u8 *)sl->family_data)[i]);
+			      ((u8 *)family_data)[i]);
 
 	c -= snprintf(buf + PAGE_SIZE - c, c, "t=%d\n",
 		w1_convert_temp(rom, sl->family->fid));
+	ret = PAGE_SIZE - c;
+
+pre_unlock:
 	mutex_unlock(&dev->bus_mutex);
 
-	return PAGE_SIZE - c;
+post_unlock:
+	atomic_dec(THERM_REFCNT(family_data));
+	return ret;
 }
 
 static int __init w1_therm_init(void)
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/watchdog/omap_wdt.c linux-libre-4.1.6-gnu/drivers/watchdog/omap_wdt.c
--- linux-libre-4.1-gnu/drivers/watchdog/omap_wdt.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/watchdog/omap_wdt.c	2015-08-16 23:52:51.000000000 -0400
@@ -132,6 +132,13 @@ static int omap_wdt_start(struct watchdo
 
 	pm_runtime_get_sync(wdev->dev);
 
+	/*
+	 * Make sure the watchdog is disabled. This is unfortunately required
+	 * because writing to various registers with the watchdog running has no
+	 * effect.
+	 */
+	omap_wdt_disable(wdev);
+
 	/* initialize prescaler */
 	while (readl_relaxed(base + OMAP_WATCHDOG_WPS) & 0x01)
 		cpu_relax();
diff -druNp --no-dereference linux-libre-4.1-gnu/drivers/xen/gntdev.c linux-libre-4.1.6-gnu/drivers/xen/gntdev.c
--- linux-libre-4.1-gnu/drivers/xen/gntdev.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/drivers/xen/gntdev.c	2015-08-16 23:52:51.000000000 -0400
@@ -568,12 +568,14 @@ static int gntdev_release(struct inode *
 
 	pr_debug("priv %p\n", priv);
 
+	mutex_lock(&priv->lock);
 	while (!list_empty(&priv->maps)) {
 		map = list_entry(priv->maps.next, struct grant_map, next);
 		list_del(&map->next);
 		gntdev_put_map(NULL /* already removed */, map);
 	}
 	WARN_ON(!list_empty(&priv->freeable_maps));
+	mutex_unlock(&priv->lock);
 
 	if (use_ptemod)
 		mmu_notifier_unregister(&priv->mn, priv->mm);
diff -druNp --no-dereference linux-libre-4.1-gnu/fs/9p/vfs_inode.c linux-libre-4.1.6-gnu/fs/9p/vfs_inode.c
--- linux-libre-4.1-gnu/fs/9p/vfs_inode.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/fs/9p/vfs_inode.c	2015-08-16 23:52:51.000000000 -0400
@@ -540,8 +540,7 @@ static struct inode *v9fs_qid_iget(struc
 	unlock_new_inode(inode);
 	return inode;
 error:
-	unlock_new_inode(inode);
-	iput(inode);
+	iget_failed(inode);
 	return ERR_PTR(retval);
 
 }
diff -druNp --no-dereference linux-libre-4.1-gnu/fs/9p/vfs_inode_dotl.c linux-libre-4.1.6-gnu/fs/9p/vfs_inode_dotl.c
--- linux-libre-4.1-gnu/fs/9p/vfs_inode_dotl.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/fs/9p/vfs_inode_dotl.c	2015-08-16 23:52:51.000000000 -0400
@@ -149,8 +149,7 @@ static struct inode *v9fs_qid_iget_dotl(
 	unlock_new_inode(inode);
 	return inode;
 error:
-	unlock_new_inode(inode);
-	iput(inode);
+	iget_failed(inode);
 	return ERR_PTR(retval);
 
 }
diff -druNp --no-dereference linux-libre-4.1-gnu/fs/btrfs/inode-map.c linux-libre-4.1.6-gnu/fs/btrfs/inode-map.c
--- linux-libre-4.1-gnu/fs/btrfs/inode-map.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/fs/btrfs/inode-map.c	2015-08-16 23:52:51.000000000 -0400
@@ -246,6 +246,7 @@ void btrfs_unpin_free_ino(struct btrfs_r
 {
 	struct btrfs_free_space_ctl *ctl = root->free_ino_ctl;
 	struct rb_root *rbroot = &root->free_ino_pinned->free_space_offset;
+	spinlock_t *rbroot_lock = &root->free_ino_pinned->tree_lock;
 	struct btrfs_free_space *info;
 	struct rb_node *n;
 	u64 count;
@@ -254,24 +255,30 @@ void btrfs_unpin_free_ino(struct btrfs_r
 		return;
 
 	while (1) {
+		bool add_to_ctl = true;
+
+		spin_lock(rbroot_lock);
 		n = rb_first(rbroot);
-		if (!n)
+		if (!n) {
+			spin_unlock(rbroot_lock);
 			break;
+		}
 
 		info = rb_entry(n, struct btrfs_free_space, offset_index);
 		BUG_ON(info->bitmap); /* Logic error */
 
 		if (info->offset > root->ino_cache_progress)
-			goto free;
+			add_to_ctl = false;
 		else if (info->offset + info->bytes > root->ino_cache_progress)
 			count = root->ino_cache_progress - info->offset + 1;
 		else
 			count = info->bytes;
 
-		__btrfs_add_free_space(ctl, info->offset, count);
-free:
 		rb_erase(&info->offset_index, rbroot);
-		kfree(info);
+		spin_unlock(rbroot_lock);
+		if (add_to_ctl)
+			__btrfs_add_free_space(ctl, info->offset, count);
+		kmem_cache_free(btrfs_free_space_cachep, info);
 	}
 }
 
diff -druNp --no-dereference linux-libre-4.1-gnu/fs/btrfs/ioctl.c linux-libre-4.1.6-gnu/fs/btrfs/ioctl.c
--- linux-libre-4.1-gnu/fs/btrfs/ioctl.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/fs/btrfs/ioctl.c	2015-08-16 23:52:51.000000000 -0400
@@ -2413,8 +2413,6 @@ static noinline int btrfs_ioctl_snap_des
 		goto out_unlock_inode;
 	}
 
-	d_invalidate(dentry);
-
 	down_write(&root->fs_info->subvol_sem);
 
 	err = may_destroy_subvol(dest);
@@ -2508,7 +2506,7 @@ out_up_write:
 out_unlock_inode:
 	mutex_unlock(&inode->i_mutex);
 	if (!err) {
-		shrink_dcache_sb(root->fs_info->sb);
+		d_invalidate(dentry);
 		btrfs_invalidate_inodes(dest);
 		d_delete(dentry);
 		ASSERT(dest->send_in_progress == 0);
@@ -2940,7 +2938,7 @@ out_unlock:
 static long btrfs_ioctl_file_extent_same(struct file *file,
 			struct btrfs_ioctl_same_args __user *argp)
 {
-	struct btrfs_ioctl_same_args *same;
+	struct btrfs_ioctl_same_args *same = NULL;
 	struct btrfs_ioctl_same_extent_info *info;
 	struct inode *src = file_inode(file);
 	u64 off;
@@ -2970,6 +2968,7 @@ static long btrfs_ioctl_file_extent_same
 
 	if (IS_ERR(same)) {
 		ret = PTR_ERR(same);
+		same = NULL;
 		goto out;
 	}
 
@@ -3040,6 +3039,7 @@ static long btrfs_ioctl_file_extent_same
 
 out:
 	mnt_drop_write_file(file);
+	kfree(same);
 	return ret;
 }
 
@@ -3434,6 +3434,20 @@ process_slot:
 				u64 trim = 0;
 				u64 aligned_end = 0;
 
+				/*
+				 * Don't copy an inline extent into an offset
+				 * greater than zero. Having an inline extent
+				 * at such an offset results in chaos as btrfs
+				 * isn't prepared for such cases. Just skip
+				 * this case for the same reasons as commented
+				 * at btrfs_ioctl_clone().
+				 */
+				if (last_dest_end > 0) {
+					ret = -EOPNOTSUPP;
+					btrfs_end_transaction(trans, root);
+					goto out;
+				}
+
 				if (off > key.offset) {
 					skip = off - key.offset;
 					new_key.offset += skip;
diff -druNp --no-dereference linux-libre-4.1-gnu/fs/btrfs/transaction.c linux-libre-4.1.6-gnu/fs/btrfs/transaction.c
--- linux-libre-4.1-gnu/fs/btrfs/transaction.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/fs/btrfs/transaction.c	2015-08-16 23:52:51.000000000 -0400
@@ -758,7 +758,7 @@ static int __btrfs_end_transaction(struc
 
 	if (!list_empty(&trans->ordered)) {
 		spin_lock(&info->trans_lock);
-		list_splice(&trans->ordered, &cur_trans->pending_ordered);
+		list_splice_init(&trans->ordered, &cur_trans->pending_ordered);
 		spin_unlock(&info->trans_lock);
 	}
 
@@ -1848,7 +1848,7 @@ int btrfs_commit_transaction(struct btrf
 	}
 
 	spin_lock(&root->fs_info->trans_lock);
-	list_splice(&trans->ordered, &cur_trans->pending_ordered);
+	list_splice_init(&trans->ordered, &cur_trans->pending_ordered);
 	if (cur_trans->state >= TRANS_STATE_COMMIT_START) {
 		spin_unlock(&root->fs_info->trans_lock);
 		atomic_inc(&cur_trans->use_count);
diff -druNp --no-dereference linux-libre-4.1-gnu/fs/btrfs/tree-log.c linux-libre-4.1.6-gnu/fs/btrfs/tree-log.c
--- linux-libre-4.1-gnu/fs/btrfs/tree-log.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/fs/btrfs/tree-log.c	2015-08-16 23:52:51.000000000 -0400
@@ -4161,6 +4161,7 @@ static int btrfs_log_inode(struct btrfs_
 	u64 ino = btrfs_ino(inode);
 	struct extent_map_tree *em_tree = &BTRFS_I(inode)->extent_tree;
 	u64 logged_isize = 0;
+	bool need_log_inode_item = true;
 
 	path = btrfs_alloc_path();
 	if (!path)
@@ -4269,11 +4270,6 @@ static int btrfs_log_inode(struct btrfs_
 		} else {
 			if (inode_only == LOG_INODE_ALL)
 				fast_search = true;
-			ret = log_inode_item(trans, log, dst_path, inode);
-			if (ret) {
-				err = ret;
-				goto out_unlock;
-			}
 			goto log_extents;
 		}
 
@@ -4296,6 +4292,9 @@ again:
 		if (min_key.type > max_key.type)
 			break;
 
+		if (min_key.type == BTRFS_INODE_ITEM_KEY)
+			need_log_inode_item = false;
+
 		src = path->nodes[0];
 		if (ins_nr && ins_start_slot + ins_nr == path->slots[0]) {
 			ins_nr++;
@@ -4366,6 +4365,11 @@ next_slot:
 log_extents:
 	btrfs_release_path(path);
 	btrfs_release_path(dst_path);
+	if (need_log_inode_item) {
+		err = log_inode_item(trans, log, dst_path, inode);
+		if (err)
+			goto out_unlock;
+	}
 	if (fast_search) {
 		/*
 		 * Some ordered extents started by fsync might have completed
diff -druNp --no-dereference linux-libre-4.1-gnu/fs/configfs/mount.c linux-libre-4.1.6-gnu/fs/configfs/mount.c
--- linux-libre-4.1-gnu/fs/configfs/mount.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/fs/configfs/mount.c	2015-08-16 23:52:51.000000000 -0400
@@ -129,8 +129,6 @@ void configfs_release_fs(void)
 }
 
 
-static struct kobject *config_kobj;
-
 static int __init configfs_init(void)
 {
 	int err = -ENOMEM;
@@ -141,8 +139,8 @@ static int __init configfs_init(void)
 	if (!configfs_dir_cachep)
 		goto out;
 
-	config_kobj = kobject_create_and_add("config", kernel_kobj);
-	if (!config_kobj)
+	err = sysfs_create_mount_point(kernel_kobj, "config");
+	if (err)
 		goto out2;
 
 	err = register_filesystem(&configfs_fs_type);
@@ -152,7 +150,7 @@ static int __init configfs_init(void)
 	return 0;
 out3:
 	pr_err("Unable to register filesystem!\n");
-	kobject_put(config_kobj);
+	sysfs_remove_mount_point(kernel_kobj, "config");
 out2:
 	kmem_cache_destroy(configfs_dir_cachep);
 	configfs_dir_cachep = NULL;
@@ -163,7 +161,7 @@ out:
 static void __exit configfs_exit(void)
 {
 	unregister_filesystem(&configfs_fs_type);
-	kobject_put(config_kobj);
+	sysfs_remove_mount_point(kernel_kobj, "config");
 	kmem_cache_destroy(configfs_dir_cachep);
 	configfs_dir_cachep = NULL;
 }
diff -druNp --no-dereference linux-libre-4.1-gnu/fs/dcache.c linux-libre-4.1.6-gnu/fs/dcache.c
--- linux-libre-4.1-gnu/fs/dcache.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/fs/dcache.c	2015-08-16 23:52:51.000000000 -0400
@@ -642,7 +642,7 @@ static inline bool fast_dput(struct dent
 
 	/*
 	 * If we have a d_op->d_delete() operation, we sould not
-	 * let the dentry count go to zero, so use "put__or_lock".
+	 * let the dentry count go to zero, so use "put_or_lock".
 	 */
 	if (unlikely(dentry->d_flags & DCACHE_OP_DELETE))
 		return lockref_put_or_lock(&dentry->d_lockref);
@@ -697,7 +697,7 @@ static inline bool fast_dput(struct dent
 	 */
 	smp_rmb();
 	d_flags = ACCESS_ONCE(dentry->d_flags);
-	d_flags &= DCACHE_REFERENCED | DCACHE_LRU_LIST;
+	d_flags &= DCACHE_REFERENCED | DCACHE_LRU_LIST | DCACHE_DISCONNECTED;
 
 	/* Nothing to do? Dropping the reference was all we needed? */
 	if (d_flags == (DCACHE_REFERENCED | DCACHE_LRU_LIST) && !d_unhashed(dentry))
@@ -776,6 +776,9 @@ repeat:
 	if (unlikely(d_unhashed(dentry)))
 		goto kill_it;
 
+	if (unlikely(dentry->d_flags & DCACHE_DISCONNECTED))
+		goto kill_it;
+
 	if (unlikely(dentry->d_flags & DCACHE_OP_DELETE)) {
 		if (dentry->d_op->d_delete(dentry))
 			goto kill_it;
@@ -2927,17 +2930,6 @@ restart:
 				vfsmnt = &mnt->mnt;
 				continue;
 			}
-			/*
-			 * Filesystems needing to implement special "root names"
-			 * should do so with ->d_dname()
-			 */
-			if (IS_ROOT(dentry) &&
-			   (dentry->d_name.len != 1 ||
-			    dentry->d_name.name[0] != '/')) {
-				WARN(1, "Root dentry has weird name <%.*s>\n",
-				     (int) dentry->d_name.len,
-				     dentry->d_name.name);
-			}
 			if (!error)
 				error = is_mounted(vfsmnt) ? 1 : 2;
 			break;
diff -druNp --no-dereference linux-libre-4.1-gnu/fs/debugfs/inode.c linux-libre-4.1.6-gnu/fs/debugfs/inode.c
--- linux-libre-4.1-gnu/fs/debugfs/inode.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/fs/debugfs/inode.c	2015-08-16 23:52:51.000000000 -0400
@@ -716,20 +716,17 @@ bool debugfs_initialized(void)
 }
 EXPORT_SYMBOL_GPL(debugfs_initialized);
 
-
-static struct kobject *debug_kobj;
-
 static int __init debugfs_init(void)
 {
 	int retval;
 
-	debug_kobj = kobject_create_and_add("debug", kernel_kobj);
-	if (!debug_kobj)
-		return -EINVAL;
+	retval = sysfs_create_mount_point(kernel_kobj, "debug");
+	if (retval)
+		return retval;
 
 	retval = register_filesystem(&debug_fs_type);
 	if (retval)
-		kobject_put(debug_kobj);
+		sysfs_remove_mount_point(kernel_kobj, "debug");
 	else
 		debugfs_registered = true;
 
diff -druNp --no-dereference linux-libre-4.1-gnu/fs/ext4/extents.c linux-libre-4.1.6-gnu/fs/ext4/extents.c
--- linux-libre-4.1-gnu/fs/ext4/extents.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/fs/ext4/extents.c	2015-08-16 23:52:51.000000000 -0400
@@ -503,7 +503,7 @@ __read_extent_tree_block(const char *fun
 	struct buffer_head		*bh;
 	int				err;
 
-	bh = sb_getblk(inode->i_sb, pblk);
+	bh = sb_getblk_gfp(inode->i_sb, pblk, __GFP_MOVABLE | GFP_NOFS);
 	if (unlikely(!bh))
 		return ERR_PTR(-ENOMEM);
 
@@ -1088,7 +1088,7 @@ static int ext4_ext_split(handle_t *hand
 		err = -EIO;
 		goto cleanup;
 	}
-	bh = sb_getblk(inode->i_sb, newblock);
+	bh = sb_getblk_gfp(inode->i_sb, newblock, __GFP_MOVABLE | GFP_NOFS);
 	if (unlikely(!bh)) {
 		err = -ENOMEM;
 		goto cleanup;
@@ -1282,7 +1282,7 @@ static int ext4_ext_grow_indepth(handle_
 	if (newblock == 0)
 		return err;
 
-	bh = sb_getblk(inode->i_sb, newblock);
+	bh = sb_getblk_gfp(inode->i_sb, newblock, __GFP_MOVABLE | GFP_NOFS);
 	if (unlikely(!bh))
 		return -ENOMEM;
 	lock_buffer(bh);
diff -druNp --no-dereference linux-libre-4.1-gnu/fs/ext4/indirect.c linux-libre-4.1.6-gnu/fs/ext4/indirect.c
--- linux-libre-4.1-gnu/fs/ext4/indirect.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/fs/ext4/indirect.c	2015-08-16 23:52:51.000000000 -0400
@@ -565,7 +565,7 @@ int ext4_ind_map_blocks(handle_t *handle
 				       EXT4_FEATURE_RO_COMPAT_BIGALLOC)) {
 		EXT4_ERROR_INODE(inode, "Can't allocate blocks for "
 				 "non-extent mapped inodes with bigalloc");
-		return -ENOSPC;
+		return -EUCLEAN;
 	}
 
 	/* Set up for the direct block allocation */
diff -druNp --no-dereference linux-libre-4.1-gnu/fs/ext4/inode.c linux-libre-4.1.6-gnu/fs/ext4/inode.c
--- linux-libre-4.1-gnu/fs/ext4/inode.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/fs/ext4/inode.c	2015-08-16 23:52:51.000000000 -0400
@@ -1342,7 +1342,7 @@ static void ext4_da_page_release_reserva
 					     unsigned int offset,
 					     unsigned int length)
 {
-	int to_release = 0;
+	int to_release = 0, contiguous_blks = 0;
 	struct buffer_head *head, *bh;
 	unsigned int curr_off = 0;
 	struct inode *inode = page->mapping->host;
@@ -1363,14 +1363,23 @@ static void ext4_da_page_release_reserva
 
 		if ((offset <= curr_off) && (buffer_delay(bh))) {
 			to_release++;
+			contiguous_blks++;
 			clear_buffer_delay(bh);
+		} else if (contiguous_blks) {
+			lblk = page->index <<
+			       (PAGE_CACHE_SHIFT - inode->i_blkbits);
+			lblk += (curr_off >> inode->i_blkbits) -
+				contiguous_blks;
+			ext4_es_remove_extent(inode, lblk, contiguous_blks);
+			contiguous_blks = 0;
 		}
 		curr_off = next_off;
 	} while ((bh = bh->b_this_page) != head);
 
-	if (to_release) {
+	if (contiguous_blks) {
 		lblk = page->index << (PAGE_CACHE_SHIFT - inode->i_blkbits);
-		ext4_es_remove_extent(inode, lblk, to_release);
+		lblk += (curr_off >> inode->i_blkbits) - contiguous_blks;
+		ext4_es_remove_extent(inode, lblk, contiguous_blks);
 	}
 
 	/* If we have released all the blocks belonging to a cluster, then we
@@ -1701,19 +1710,32 @@ static int __ext4_journalled_writepage(s
 		ext4_walk_page_buffers(handle, page_bufs, 0, len,
 				       NULL, bget_one);
 	}
-	/* As soon as we unlock the page, it can go away, but we have
-	 * references to buffers so we are safe */
+	/*
+	 * We need to release the page lock before we start the
+	 * journal, so grab a reference so the page won't disappear
+	 * out from under us.
+	 */
+	get_page(page);
 	unlock_page(page);
 
 	handle = ext4_journal_start(inode, EXT4_HT_WRITE_PAGE,
 				    ext4_writepage_trans_blocks(inode));
 	if (IS_ERR(handle)) {
 		ret = PTR_ERR(handle);
-		goto out;
+		put_page(page);
+		goto out_no_pagelock;
 	}
-
 	BUG_ON(!ext4_handle_valid(handle));
 
+	lock_page(page);
+	put_page(page);
+	if (page->mapping != mapping) {
+		/* The page got truncated from under us */
+		ext4_journal_stop(handle);
+		ret = 0;
+		goto out;
+	}
+
 	if (inline_data) {
 		BUFFER_TRACE(inode_bh, "get write access");
 		ret = ext4_journal_get_write_access(handle, inode_bh);
@@ -1739,6 +1761,8 @@ static int __ext4_journalled_writepage(s
 				       NULL, bput_one);
 	ext4_set_inode_state(inode, EXT4_STATE_JDATA);
 out:
+	unlock_page(page);
+out_no_pagelock:
 	brelse(inode_bh);
 	return ret;
 }
@@ -4345,7 +4369,12 @@ static void ext4_update_other_inodes_tim
 	int inode_size = EXT4_INODE_SIZE(sb);
 
 	oi.orig_ino = orig_ino;
-	ino = (orig_ino & ~(inodes_per_block - 1)) + 1;
+	/*
+	 * Calculate the first inode in the inode table block.  Inode
+	 * numbers are one-based.  That is, the first inode in a block
+	 * (assuming 4k blocks and 256 byte inodes) is (n*16 + 1).
+	 */
+	ino = ((orig_ino - 1) & ~(inodes_per_block - 1)) + 1;
 	for (i = 0; i < inodes_per_block; i++, ino++, buf += inode_size) {
 		if (ino == orig_ino)
 			continue;
diff -druNp --no-dereference linux-libre-4.1-gnu/fs/ext4/mballoc.c linux-libre-4.1.6-gnu/fs/ext4/mballoc.c
--- linux-libre-4.1-gnu/fs/ext4/mballoc.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/fs/ext4/mballoc.c	2015-08-16 23:52:51.000000000 -0400
@@ -4800,18 +4800,12 @@ do_more:
 		/*
 		 * blocks being freed are metadata. these blocks shouldn't
 		 * be used until this transaction is committed
+		 *
+		 * We use __GFP_NOFAIL because ext4_free_blocks() is not allowed
+		 * to fail.
 		 */
-	retry:
-		new_entry = kmem_cache_alloc(ext4_free_data_cachep, GFP_NOFS);
-		if (!new_entry) {
-			/*
-			 * We use a retry loop because
-			 * ext4_free_blocks() is not allowed to fail.
-			 */
-			cond_resched();
-			congestion_wait(BLK_RW_ASYNC, HZ/50);
-			goto retry;
-		}
+		new_entry = kmem_cache_alloc(ext4_free_data_cachep,
+				GFP_NOFS|__GFP_NOFAIL);
 		new_entry->efd_start_cluster = bit;
 		new_entry->efd_group = block_group;
 		new_entry->efd_count = count_clusters;
diff -druNp --no-dereference linux-libre-4.1-gnu/fs/ext4/migrate.c linux-libre-4.1.6-gnu/fs/ext4/migrate.c
--- linux-libre-4.1-gnu/fs/ext4/migrate.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/fs/ext4/migrate.c	2015-08-16 23:52:51.000000000 -0400
@@ -620,6 +620,7 @@ int ext4_ind_migrate(struct inode *inode
 	struct ext4_inode_info		*ei = EXT4_I(inode);
 	struct ext4_extent		*ex;
 	unsigned int			i, len;
+	ext4_lblk_t			start, end;
 	ext4_fsblk_t			blk;
 	handle_t			*handle;
 	int				ret;
@@ -633,6 +634,14 @@ int ext4_ind_migrate(struct inode *inode
 				       EXT4_FEATURE_RO_COMPAT_BIGALLOC))
 		return -EOPNOTSUPP;
 
+	/*
+	 * In order to get correct extent info, force all delayed allocation
+	 * blocks to be allocated, otherwise delayed allocation blocks may not
+	 * be reflected and bypass the checks on extent header.
+	 */
+	if (test_opt(inode->i_sb, DELALLOC))
+		ext4_alloc_da_blocks(inode);
+
 	handle = ext4_journal_start(inode, EXT4_HT_MIGRATE, 1);
 	if (IS_ERR(handle))
 		return PTR_ERR(handle);
@@ -650,11 +659,13 @@ int ext4_ind_migrate(struct inode *inode
 		goto errout;
 	}
 	if (eh->eh_entries == 0)
-		blk = len = 0;
+		blk = len = start = end = 0;
 	else {
 		len = le16_to_cpu(ex->ee_len);
 		blk = ext4_ext_pblock(ex);
-		if (len > EXT4_NDIR_BLOCKS) {
+		start = le32_to_cpu(ex->ee_block);
+		end = start + len - 1;
+		if (end >= EXT4_NDIR_BLOCKS) {
 			ret = -EOPNOTSUPP;
 			goto errout;
 		}
@@ -662,7 +673,7 @@ int ext4_ind_migrate(struct inode *inode
 
 	ext4_clear_inode_flag(inode, EXT4_INODE_EXTENTS);
 	memset(ei->i_data, 0, sizeof(ei->i_data));
-	for (i=0; i < len; i++)
+	for (i = start; i <= end; i++)
 		ei->i_data[i] = cpu_to_le32(blk++);
 	ext4_mark_inode_dirty(handle, inode);
 errout:
diff -druNp --no-dereference linux-libre-4.1-gnu/fs/ext4/super.c linux-libre-4.1.6-gnu/fs/ext4/super.c
--- linux-libre-4.1-gnu/fs/ext4/super.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/fs/ext4/super.c	2015-08-16 23:52:51.000000000 -0400
@@ -807,6 +807,7 @@ static void ext4_put_super(struct super_
 		dump_orphan_list(sb, sbi);
 	J_ASSERT(list_empty(&sbi->s_orphan));
 
+	sync_blockdev(sb->s_bdev);
 	invalidate_bdev(sb->s_bdev);
 	if (sbi->journal_bdev && sbi->journal_bdev != sb->s_bdev) {
 		/*
@@ -4943,6 +4944,9 @@ static int ext4_remount(struct super_blo
 		set_task_ioprio(sbi->s_journal->j_task, journal_ioprio);
 	}
 
+	if (*flags & MS_LAZYTIME)
+		sb->s_flags |= MS_LAZYTIME;
+
 	if ((*flags & MS_RDONLY) != (sb->s_flags & MS_RDONLY)) {
 		if (sbi->s_mount_flags & EXT4_MF_FS_ABORTED) {
 			err = -EROFS;
diff -druNp --no-dereference linux-libre-4.1-gnu/fs/fuse/inode.c linux-libre-4.1.6-gnu/fs/fuse/inode.c
--- linux-libre-4.1-gnu/fs/fuse/inode.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/fs/fuse/inode.c	2015-08-16 23:52:51.000000000 -0400
@@ -1026,6 +1026,7 @@ static int fuse_fill_super(struct super_
 		goto err_fput;
 
 	fuse_conn_init(fc);
+	fc->release = fuse_free_conn;
 
 	fc->dev = sb->s_dev;
 	fc->sb = sb;
@@ -1040,7 +1041,6 @@ static int fuse_fill_super(struct super_
 		fc->dont_mask = 1;
 	sb->s_flags |= MS_POSIXACL;
 
-	fc->release = fuse_free_conn;
 	fc->flags = d.flags;
 	fc->user_id = d.user_id;
 	fc->group_id = d.group_id;
@@ -1238,7 +1238,6 @@ static void fuse_fs_cleanup(void)
 }
 
 static struct kobject *fuse_kobj;
-static struct kobject *connections_kobj;
 
 static int fuse_sysfs_init(void)
 {
@@ -1250,11 +1249,9 @@ static int fuse_sysfs_init(void)
 		goto out_err;
 	}
 
-	connections_kobj = kobject_create_and_add("connections", fuse_kobj);
-	if (!connections_kobj) {
-		err = -ENOMEM;
+	err = sysfs_create_mount_point(fuse_kobj, "connections");
+	if (err)
 		goto out_fuse_unregister;
-	}
 
 	return 0;
 
@@ -1266,7 +1263,7 @@ static int fuse_sysfs_init(void)
 
 static void fuse_sysfs_cleanup(void)
 {
-	kobject_put(connections_kobj);
+	sysfs_remove_mount_point(fuse_kobj, "connections");
 	kobject_put(fuse_kobj);
 }
 
diff -druNp --no-dereference linux-libre-4.1-gnu/fs/hpfs/super.c linux-libre-4.1.6-gnu/fs/hpfs/super.c
--- linux-libre-4.1-gnu/fs/hpfs/super.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/fs/hpfs/super.c	2015-08-16 23:52:51.000000000 -0400
@@ -52,17 +52,20 @@ static void unmark_dirty(struct super_bl
 }
 
 /* Filesystem error... */
-static char err_buf[1024];
-
 void hpfs_error(struct super_block *s, const char *fmt, ...)
 {
+	struct va_format vaf;
 	va_list args;
 
 	va_start(args, fmt);
-	vsnprintf(err_buf, sizeof(err_buf), fmt, args);
+
+	vaf.fmt = fmt;
+	vaf.va = &args;
+
+	pr_err("filesystem error: %pV", &vaf);
+
 	va_end(args);
 
-	pr_err("filesystem error: %s", err_buf);
 	if (!hpfs_sb(s)->sb_was_error) {
 		if (hpfs_sb(s)->sb_err == 2) {
 			pr_cont("; crashing the system because you wanted it\n");
@@ -424,11 +427,14 @@ static int hpfs_remount_fs(struct super_
 	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);
 
 	*flags |= MS_NOATIME;
-	
+
 	hpfs_lock(s);
 	uid = sbi->sb_uid; gid = sbi->sb_gid;
 	umask = 0777 & ~sbi->sb_mode;
diff -druNp --no-dereference linux-libre-4.1-gnu/fs/inode.c linux-libre-4.1.6-gnu/fs/inode.c
--- linux-libre-4.1-gnu/fs/inode.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/fs/inode.c	2015-08-16 23:52:51.000000000 -0400
@@ -1693,8 +1693,8 @@ int file_remove_suid(struct file *file)
 		error = security_inode_killpriv(dentry);
 	if (!error && killsuid)
 		error = __remove_suid(dentry, killsuid);
-	if (!error && (inode->i_sb->s_flags & MS_NOSEC))
-		inode->i_flags |= S_NOSEC;
+	if (!error)
+		inode_has_no_xattr(inode);
 
 	return error;
 }
diff -druNp --no-dereference linux-libre-4.1-gnu/fs/jbd2/checkpoint.c linux-libre-4.1.6-gnu/fs/jbd2/checkpoint.c
--- linux-libre-4.1-gnu/fs/jbd2/checkpoint.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/fs/jbd2/checkpoint.c	2015-08-16 23:52:51.000000000 -0400
@@ -390,7 +390,7 @@ int jbd2_cleanup_journal_tail(journal_t
 	unsigned long	blocknr;
 
 	if (is_journal_aborted(journal))
-		return 1;
+		return -EIO;
 
 	if (!jbd2_journal_get_log_tail(journal, &first_tid, &blocknr))
 		return 1;
@@ -405,10 +405,9 @@ int jbd2_cleanup_journal_tail(journal_t
 	 * jbd2_cleanup_journal_tail() doesn't get called all that often.
 	 */
 	if (journal->j_flags & JBD2_BARRIER)
-		blkdev_issue_flush(journal->j_fs_dev, GFP_KERNEL, NULL);
+		blkdev_issue_flush(journal->j_fs_dev, GFP_NOFS, NULL);
 
-	__jbd2_update_log_tail(journal, first_tid, blocknr);
-	return 0;
+	return __jbd2_update_log_tail(journal, first_tid, blocknr);
 }
 
 
diff -druNp --no-dereference linux-libre-4.1-gnu/fs/jbd2/journal.c linux-libre-4.1.6-gnu/fs/jbd2/journal.c
--- linux-libre-4.1-gnu/fs/jbd2/journal.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/fs/jbd2/journal.c	2015-08-16 23:52:51.000000000 -0400
@@ -885,9 +885,10 @@ int jbd2_journal_get_log_tail(journal_t
  *
  * Requires j_checkpoint_mutex
  */
-void __jbd2_update_log_tail(journal_t *journal, tid_t tid, unsigned long block)
+int __jbd2_update_log_tail(journal_t *journal, tid_t tid, unsigned long block)
 {
 	unsigned long freed;
+	int ret;
 
 	BUG_ON(!mutex_is_locked(&journal->j_checkpoint_mutex));
 
@@ -897,7 +898,10 @@ void __jbd2_update_log_tail(journal_t *j
 	 * space and if we lose sb update during power failure we'd replay
 	 * old transaction with possibly newly overwritten data.
 	 */
-	jbd2_journal_update_sb_log_tail(journal, tid, block, WRITE_FUA);
+	ret = jbd2_journal_update_sb_log_tail(journal, tid, block, WRITE_FUA);
+	if (ret)
+		goto out;
+
 	write_lock(&journal->j_state_lock);
 	freed = block - journal->j_tail;
 	if (block < journal->j_tail)
@@ -913,6 +917,9 @@ void __jbd2_update_log_tail(journal_t *j
 	journal->j_tail_sequence = tid;
 	journal->j_tail = block;
 	write_unlock(&journal->j_state_lock);
+
+out:
+	return ret;
 }
 
 /*
@@ -1331,7 +1338,7 @@ static int journal_reset(journal_t *jour
 	return jbd2_journal_start_thread(journal);
 }
 
-static void jbd2_write_superblock(journal_t *journal, int write_op)
+static int jbd2_write_superblock(journal_t *journal, int write_op)
 {
 	struct buffer_head *bh = journal->j_sb_buffer;
 	journal_superblock_t *sb = journal->j_superblock;
@@ -1370,7 +1377,10 @@ static void jbd2_write_superblock(journa
 		printk(KERN_ERR "JBD2: Error %d detected when updating "
 		       "journal superblock for %s.\n", ret,
 		       journal->j_devname);
+		jbd2_journal_abort(journal, ret);
 	}
+
+	return ret;
 }
 
 /**
@@ -1383,10 +1393,11 @@ static void jbd2_write_superblock(journa
  * Update a journal's superblock information about log tail and write it to
  * disk, waiting for the IO to complete.
  */
-void jbd2_journal_update_sb_log_tail(journal_t *journal, tid_t tail_tid,
+int jbd2_journal_update_sb_log_tail(journal_t *journal, tid_t tail_tid,
 				     unsigned long tail_block, int write_op)
 {
 	journal_superblock_t *sb = journal->j_superblock;
+	int ret;
 
 	BUG_ON(!mutex_is_locked(&journal->j_checkpoint_mutex));
 	jbd_debug(1, "JBD2: updating superblock (start %lu, seq %u)\n",
@@ -1395,13 +1406,18 @@ void jbd2_journal_update_sb_log_tail(jou
 	sb->s_sequence = cpu_to_be32(tail_tid);
 	sb->s_start    = cpu_to_be32(tail_block);
 
-	jbd2_write_superblock(journal, write_op);
+	ret = jbd2_write_superblock(journal, write_op);
+	if (ret)
+		goto out;
 
 	/* Log is no longer empty */
 	write_lock(&journal->j_state_lock);
 	WARN_ON(!sb->s_sequence);
 	journal->j_flags &= ~JBD2_FLUSHED;
 	write_unlock(&journal->j_state_lock);
+
+out:
+	return ret;
 }
 
 /**
@@ -1950,7 +1966,14 @@ int jbd2_journal_flush(journal_t *journa
 		return -EIO;
 
 	mutex_lock(&journal->j_checkpoint_mutex);
-	jbd2_cleanup_journal_tail(journal);
+	if (!err) {
+		err = jbd2_cleanup_journal_tail(journal);
+		if (err < 0) {
+			mutex_unlock(&journal->j_checkpoint_mutex);
+			goto out;
+		}
+		err = 0;
+	}
 
 	/* Finally, mark the journal as really needing no recovery.
 	 * This sets s_start==0 in the underlying superblock, which is
@@ -1966,7 +1989,8 @@ int jbd2_journal_flush(journal_t *journa
 	J_ASSERT(journal->j_head == journal->j_tail);
 	J_ASSERT(journal->j_tail_sequence == journal->j_transaction_sequence);
 	write_unlock(&journal->j_state_lock);
-	return 0;
+out:
+	return err;
 }
 
 /**
diff -druNp --no-dereference linux-libre-4.1-gnu/fs/kernfs/dir.c linux-libre-4.1.6-gnu/fs/kernfs/dir.c
--- linux-libre-4.1-gnu/fs/kernfs/dir.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/fs/kernfs/dir.c	2015-08-16 23:52:51.000000000 -0400
@@ -592,6 +592,9 @@ int kernfs_add_one(struct kernfs_node *k
 		goto out_unlock;
 
 	ret = -ENOENT;
+	if (parent->flags & KERNFS_EMPTY_DIR)
+		goto out_unlock;
+
 	if ((parent->flags & KERNFS_ACTIVATED) && !kernfs_active(parent))
 		goto out_unlock;
 
@@ -783,6 +786,38 @@ struct kernfs_node *kernfs_create_dir_ns
 	return ERR_PTR(rc);
 }
 
+/**
+ * kernfs_create_empty_dir - create an always empty directory
+ * @parent: parent in which to create a new directory
+ * @name: name of the new directory
+ *
+ * Returns the created node on success, ERR_PTR() value on failure.
+ */
+struct kernfs_node *kernfs_create_empty_dir(struct kernfs_node *parent,
+					    const char *name)
+{
+	struct kernfs_node *kn;
+	int rc;
+
+	/* allocate */
+	kn = kernfs_new_node(parent, name, S_IRUGO|S_IXUGO|S_IFDIR, KERNFS_DIR);
+	if (!kn)
+		return ERR_PTR(-ENOMEM);
+
+	kn->flags |= KERNFS_EMPTY_DIR;
+	kn->dir.root = parent->dir.root;
+	kn->ns = NULL;
+	kn->priv = NULL;
+
+	/* link in */
+	rc = kernfs_add_one(kn);
+	if (!rc)
+		return kn;
+
+	kernfs_put(kn);
+	return ERR_PTR(rc);
+}
+
 static struct dentry *kernfs_iop_lookup(struct inode *dir,
 					struct dentry *dentry,
 					unsigned int flags)
@@ -1254,7 +1289,8 @@ int kernfs_rename_ns(struct kernfs_node
 	mutex_lock(&kernfs_mutex);
 
 	error = -ENOENT;
-	if (!kernfs_active(kn) || !kernfs_active(new_parent))
+	if (!kernfs_active(kn) || !kernfs_active(new_parent) ||
+	    (new_parent->flags & KERNFS_EMPTY_DIR))
 		goto out;
 
 	error = 0;
diff -druNp --no-dereference linux-libre-4.1-gnu/fs/kernfs/inode.c linux-libre-4.1.6-gnu/fs/kernfs/inode.c
--- linux-libre-4.1-gnu/fs/kernfs/inode.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/fs/kernfs/inode.c	2015-08-16 23:52:51.000000000 -0400
@@ -296,6 +296,8 @@ static void kernfs_init_inode(struct ker
 	case KERNFS_DIR:
 		inode->i_op = &kernfs_dir_iops;
 		inode->i_fop = &kernfs_dir_fops;
+		if (kn->flags & KERNFS_EMPTY_DIR)
+			make_empty_dir_inode(inode);
 		break;
 	case KERNFS_FILE:
 		inode->i_size = kn->attr.size;
diff -druNp --no-dereference linux-libre-4.1-gnu/fs/libfs.c linux-libre-4.1.6-gnu/fs/libfs.c
--- linux-libre-4.1-gnu/fs/libfs.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/fs/libfs.c	2015-08-16 23:52:51.000000000 -0400
@@ -1093,3 +1093,99 @@ simple_nosetlease(struct file *filp, lon
 	return -EINVAL;
 }
 EXPORT_SYMBOL(simple_nosetlease);
+
+
+/*
+ * Operations for a permanently empty directory.
+ */
+static struct dentry *empty_dir_lookup(struct inode *dir, struct dentry *dentry, unsigned int flags)
+{
+	return ERR_PTR(-ENOENT);
+}
+
+static int empty_dir_getattr(struct vfsmount *mnt, struct dentry *dentry,
+				 struct kstat *stat)
+{
+	struct inode *inode = d_inode(dentry);
+	generic_fillattr(inode, stat);
+	return 0;
+}
+
+static int empty_dir_setattr(struct dentry *dentry, struct iattr *attr)
+{
+	return -EPERM;
+}
+
+static int empty_dir_setxattr(struct dentry *dentry, const char *name,
+			      const void *value, size_t size, int flags)
+{
+	return -EOPNOTSUPP;
+}
+
+static ssize_t empty_dir_getxattr(struct dentry *dentry, const char *name,
+				  void *value, size_t size)
+{
+	return -EOPNOTSUPP;
+}
+
+static int empty_dir_removexattr(struct dentry *dentry, const char *name)
+{
+	return -EOPNOTSUPP;
+}
+
+static ssize_t empty_dir_listxattr(struct dentry *dentry, char *list, size_t size)
+{
+	return -EOPNOTSUPP;
+}
+
+static const struct inode_operations empty_dir_inode_operations = {
+	.lookup		= empty_dir_lookup,
+	.permission	= generic_permission,
+	.setattr	= empty_dir_setattr,
+	.getattr	= empty_dir_getattr,
+	.setxattr	= empty_dir_setxattr,
+	.getxattr	= empty_dir_getxattr,
+	.removexattr	= empty_dir_removexattr,
+	.listxattr	= empty_dir_listxattr,
+};
+
+static loff_t empty_dir_llseek(struct file *file, loff_t offset, int whence)
+{
+	/* An empty directory has two entries . and .. at offsets 0 and 1 */
+	return generic_file_llseek_size(file, offset, whence, 2, 2);
+}
+
+static int empty_dir_readdir(struct file *file, struct dir_context *ctx)
+{
+	dir_emit_dots(file, ctx);
+	return 0;
+}
+
+static const struct file_operations empty_dir_operations = {
+	.llseek		= empty_dir_llseek,
+	.read		= generic_read_dir,
+	.iterate	= empty_dir_readdir,
+	.fsync		= noop_fsync,
+};
+
+
+void make_empty_dir_inode(struct inode *inode)
+{
+	set_nlink(inode, 2);
+	inode->i_mode = S_IFDIR | S_IRUGO | S_IXUGO;
+	inode->i_uid = GLOBAL_ROOT_UID;
+	inode->i_gid = GLOBAL_ROOT_GID;
+	inode->i_rdev = 0;
+	inode->i_size = 2;
+	inode->i_blkbits = PAGE_SHIFT;
+	inode->i_blocks = 0;
+
+	inode->i_op = &empty_dir_inode_operations;
+	inode->i_fop = &empty_dir_operations;
+}
+
+bool is_empty_dir_inode(struct inode *inode)
+{
+	return (inode->i_fop == &empty_dir_operations) &&
+		(inode->i_op == &empty_dir_inode_operations);
+}
diff -druNp --no-dereference linux-libre-4.1-gnu/fs/namespace.c linux-libre-4.1.6-gnu/fs/namespace.c
--- linux-libre-4.1-gnu/fs/namespace.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/fs/namespace.c	2015-08-16 23:52:51.000000000 -0400
@@ -1350,6 +1350,36 @@ enum umount_tree_flags {
 	UMOUNT_PROPAGATE = 2,
 	UMOUNT_CONNECTED = 4,
 };
+
+static bool disconnect_mount(struct mount *mnt, enum umount_tree_flags how)
+{
+	/* Leaving mounts connected is only valid for lazy umounts */
+	if (how & UMOUNT_SYNC)
+		return true;
+
+	/* A mount without a parent has nothing to be connected to */
+	if (!mnt_has_parent(mnt))
+		return true;
+
+	/* Because the reference counting rules change when mounts are
+	 * unmounted and connected, umounted mounts may not be
+	 * connected to mounted mounts.
+	 */
+	if (!(mnt->mnt_parent->mnt.mnt_flags & MNT_UMOUNT))
+		return true;
+
+	/* Has it been requested that the mount remain connected? */
+	if (how & UMOUNT_CONNECTED)
+		return false;
+
+	/* Is the mount locked such that it needs to remain connected? */
+	if (IS_MNT_LOCKED(mnt))
+		return false;
+
+	/* By default disconnect the mount */
+	return true;
+}
+
 /*
  * mount_lock must be held
  * namespace_sem must be held for write
@@ -1387,10 +1417,7 @@ static void umount_tree(struct mount *mn
 		if (how & UMOUNT_SYNC)
 			p->mnt.mnt_flags |= MNT_SYNC_UMOUNT;
 
-		disconnect = !(((how & UMOUNT_CONNECTED) &&
-				mnt_has_parent(p) &&
-				(p->mnt_parent->mnt.mnt_flags & MNT_UMOUNT)) ||
-			       IS_MNT_LOCKED_AND_LAZY(p));
+		disconnect = disconnect_mount(p, how);
 
 		pin_insert_group(&p->mnt_umount, &p->mnt_parent->mnt,
 				 disconnect ? &unmounted : NULL);
@@ -1527,11 +1554,8 @@ void __detach_mounts(struct dentry *dent
 	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) {
-			struct mount *p, *tmp;
-			list_for_each_entry_safe(p, tmp, &mnt->mnt_mounts,  mnt_child) {
-				hlist_add_head(&p->mnt_umount.s_list, &unmounted);
-				umount_mnt(p);
-			}
+			hlist_add_head(&mnt->mnt_umount.s_list, &unmounted);
+			umount_mnt(mnt);
 		}
 		else umount_tree(mnt, UMOUNT_CONNECTED);
 	}
@@ -2332,6 +2356,8 @@ unlock:
 	return err;
 }
 
+static bool fs_fully_visible(struct file_system_type *fs_type, int *new_mnt_flags);
+
 /*
  * create a new mount for userspace and request it to be added into the
  * namespace's tree
@@ -2363,6 +2389,10 @@ static int do_new_mount(struct path *pat
 			flags |= MS_NODEV;
 			mnt_flags |= MNT_NODEV | MNT_LOCK_NODEV;
 		}
+		if (type->fs_flags & FS_USERNS_VISIBLE) {
+			if (!fs_fully_visible(type, &mnt_flags))
+				return -EPERM;
+		}
 	}
 
 	mnt = vfs_kern_mount(type, flags, name, data);
@@ -3164,9 +3194,10 @@ bool current_chrooted(void)
 	return chrooted;
 }
 
-bool fs_fully_visible(struct file_system_type *type)
+static bool fs_fully_visible(struct file_system_type *type, int *new_mnt_flags)
 {
 	struct mnt_namespace *ns = current->nsproxy->mnt_ns;
+	int new_flags = *new_mnt_flags;
 	struct mount *mnt;
 	bool visible = false;
 
@@ -3185,16 +3216,36 @@ bool fs_fully_visible(struct file_system
 		if (mnt->mnt.mnt_root != mnt->mnt.mnt_sb->s_root)
 			continue;
 
-		/* This mount is not fully visible if there are any child mounts
-		 * that cover anything except for empty directories.
+		/* Verify the mount flags are equal to or more permissive
+		 * than the proposed new mount.
+		 */
+		if ((mnt->mnt.mnt_flags & MNT_LOCK_READONLY) &&
+		    !(new_flags & MNT_READONLY))
+			continue;
+		if ((mnt->mnt.mnt_flags & MNT_LOCK_NODEV) &&
+		    !(new_flags & MNT_NODEV))
+			continue;
+		if ((mnt->mnt.mnt_flags & MNT_LOCK_ATIME) &&
+		    ((mnt->mnt.mnt_flags & MNT_ATIME_MASK) != (new_flags & MNT_ATIME_MASK)))
+			continue;
+
+		/* This mount is not fully visible if there are any
+		 * locked child mounts that cover anything except for
+		 * empty directories.
 		 */
 		list_for_each_entry(child, &mnt->mnt_mounts, mnt_child) {
 			struct inode *inode = child->mnt_mountpoint->d_inode;
-			if (!S_ISDIR(inode->i_mode))
-				goto next;
-			if (inode->i_nlink > 2)
+			/* Only worry about locked mounts */
+			if (!(mnt->mnt.mnt_flags & MNT_LOCKED))
+				continue;
+			/* Is the directory permanetly empty? */
+			if (!is_empty_dir_inode(inode))
 				goto next;
 		}
+		/* Preserve the locked attributes */
+		*new_mnt_flags |= mnt->mnt.mnt_flags & (MNT_LOCK_READONLY | \
+							MNT_LOCK_NODEV    | \
+							MNT_LOCK_ATIME);
 		visible = true;
 		goto found;
 	next:	;
diff -druNp --no-dereference linux-libre-4.1-gnu/fs/nfs/flexfilelayout/flexfilelayout.c linux-libre-4.1.6-gnu/fs/nfs/flexfilelayout/flexfilelayout.c
--- linux-libre-4.1-gnu/fs/nfs/flexfilelayout/flexfilelayout.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/fs/nfs/flexfilelayout/flexfilelayout.c	2015-08-16 23:52:51.000000000 -0400
@@ -631,7 +631,7 @@ static void ff_layout_reset_write(struct
 			nfs_direct_set_resched_writes(hdr->dreq);
 			/* fake unstable write to let common nfs resend pages */
 			hdr->verf.committed = NFS_UNSTABLE;
-			hdr->good_bytes = 0;
+			hdr->good_bytes = hdr->args.count;
 		}
 		return;
 	}
diff -druNp --no-dereference linux-libre-4.1-gnu/fs/nfs/flexfilelayout/flexfilelayoutdev.c linux-libre-4.1.6-gnu/fs/nfs/flexfilelayout/flexfilelayoutdev.c
--- linux-libre-4.1-gnu/fs/nfs/flexfilelayout/flexfilelayoutdev.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/fs/nfs/flexfilelayout/flexfilelayoutdev.c	2015-08-16 23:52:51.000000000 -0400
@@ -324,7 +324,8 @@ static int ff_layout_update_mirror_cred(
 				__func__, PTR_ERR(cred));
 			return PTR_ERR(cred);
 		} else {
-			mirror->cred = cred;
+			if (cmpxchg(&mirror->cred, NULL, cred))
+				put_rpccred(cred);
 		}
 	}
 	return 0;
@@ -386,7 +387,7 @@ nfs4_ff_layout_prepare_ds(struct pnfs_la
 	/* matching smp_wmb() in _nfs4_pnfs_v3/4_ds_connect */
 	smp_rmb();
 	if (ds->ds_clp)
-		goto out;
+		goto out_update_creds;
 
 	flavor = nfs4_ff_layout_choose_authflavor(mirror);
 
@@ -430,7 +431,7 @@ nfs4_ff_layout_prepare_ds(struct pnfs_la
 			}
 		}
 	}
-
+out_update_creds:
 	if (ff_layout_update_mirror_cred(mirror, ds))
 		ds = NULL;
 out:
diff -druNp --no-dereference linux-libre-4.1-gnu/fs/nfs/inode.c linux-libre-4.1.6-gnu/fs/nfs/inode.c
--- linux-libre-4.1-gnu/fs/nfs/inode.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/fs/nfs/inode.c	2015-08-16 23:52:51.000000000 -0400
@@ -1242,9 +1242,11 @@ static int nfs_check_inode_attributes(st
 	if (fattr->valid & NFS_ATTR_FATTR_SIZE) {
 		cur_size = i_size_read(inode);
 		new_isize = nfs_size_to_loff_t(fattr->size);
-		if (cur_size != new_isize && nfsi->nrequests == 0)
+		if (cur_size != new_isize)
 			invalid |= NFS_INO_INVALID_ATTR|NFS_INO_REVAL_PAGECACHE;
 	}
+	if (nfsi->nrequests != 0)
+		invalid &= ~NFS_INO_REVAL_PAGECACHE;
 
 	/* Have any file permissions changed? */
 	if ((fattr->valid & NFS_ATTR_FATTR_MODE) && (inode->i_mode & S_IALLUGO) != (fattr->mode & S_IALLUGO))
@@ -1682,8 +1684,7 @@ static int nfs_update_inode(struct inode
 			invalid |= NFS_INO_INVALID_ATTR
 				| NFS_INO_INVALID_DATA
 				| NFS_INO_INVALID_ACCESS
-				| NFS_INO_INVALID_ACL
-				| NFS_INO_REVAL_PAGECACHE;
+				| NFS_INO_INVALID_ACL;
 			if (S_ISDIR(inode->i_mode))
 				nfs_force_lookup_revalidate(inode);
 			inode->i_version = fattr->change_attr;
@@ -1715,7 +1716,6 @@ static int nfs_update_inode(struct inode
 			if ((nfsi->nrequests == 0) || new_isize > cur_isize) {
 				i_size_write(inode, new_isize);
 				invalid |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_DATA;
-				invalid &= ~NFS_INO_REVAL_PAGECACHE;
 			}
 			dprintk("NFS: isize change on server for file %s/%ld "
 					"(%Ld to %Ld)\n",
diff -druNp --no-dereference linux-libre-4.1-gnu/fs/nfs/nfs3xdr.c linux-libre-4.1.6-gnu/fs/nfs/nfs3xdr.c
--- linux-libre-4.1-gnu/fs/nfs/nfs3xdr.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/fs/nfs/nfs3xdr.c	2015-08-16 23:52:51.000000000 -0400
@@ -1342,7 +1342,7 @@ static void nfs3_xdr_enc_setacl3args(str
 	if (args->npages != 0)
 		xdr_write_pages(xdr, args->pages, 0, args->len);
 	else
-		xdr_reserve_space(xdr, NFS_ACL_INLINE_BUFSIZE);
+		xdr_reserve_space(xdr, args->len);
 
 	error = nfsacl_encode(xdr->buf, base, args->inode,
 			    (args->mask & NFS_ACL) ?
diff -druNp --no-dereference linux-libre-4.1-gnu/fs/nfs/nfs4proc.c linux-libre-4.1.6-gnu/fs/nfs/nfs4proc.c
--- linux-libre-4.1-gnu/fs/nfs/nfs4proc.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/fs/nfs/nfs4proc.c	2015-08-16 23:52:51.000000000 -0400
@@ -1204,12 +1204,15 @@ static bool nfs_need_update_open_stateid
 
 static void nfs_resync_open_stateid_locked(struct nfs4_state *state)
 {
+	if (!(state->n_wronly || state->n_rdonly || state->n_rdwr))
+		return;
 	if (state->n_wronly)
 		set_bit(NFS_O_WRONLY_STATE, &state->flags);
 	if (state->n_rdonly)
 		set_bit(NFS_O_RDONLY_STATE, &state->flags);
 	if (state->n_rdwr)
 		set_bit(NFS_O_RDWR_STATE, &state->flags);
+	set_bit(NFS_OPEN_STATE, &state->flags);
 }
 
 static void nfs_clear_open_stateid_locked(struct nfs4_state *state,
diff -druNp --no-dereference linux-libre-4.1-gnu/fs/nfs/nfs4state.c linux-libre-4.1.6-gnu/fs/nfs/nfs4state.c
--- linux-libre-4.1-gnu/fs/nfs/nfs4state.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/fs/nfs/nfs4state.c	2015-08-16 23:52:51.000000000 -0400
@@ -1482,6 +1482,8 @@ restart:
 					spin_unlock(&state->state_lock);
 				}
 				nfs4_put_open_state(state);
+				clear_bit(NFS4CLNT_RECLAIM_NOGRACE,
+					&state->flags);
 				spin_lock(&sp->so_lock);
 				goto restart;
 			}
diff -druNp --no-dereference linux-libre-4.1-gnu/fs/nfs/pagelist.c linux-libre-4.1.6-gnu/fs/nfs/pagelist.c
--- linux-libre-4.1-gnu/fs/nfs/pagelist.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/fs/nfs/pagelist.c	2015-08-16 23:52:51.000000000 -0400
@@ -1110,8 +1110,11 @@ static int nfs_do_recoalesce(struct nfs_
 			nfs_list_remove_request(req);
 			if (__nfs_pageio_add_request(desc, req))
 				continue;
-			if (desc->pg_error < 0)
+			if (desc->pg_error < 0) {
+				list_splice_tail(&head, &mirror->pg_list);
+				mirror->pg_recoalesce = 1;
 				return 0;
+			}
 			break;
 		}
 	} while (mirror->pg_recoalesce);
diff -druNp --no-dereference linux-libre-4.1-gnu/fs/nfs/pnfs.c linux-libre-4.1.6-gnu/fs/nfs/pnfs.c
--- linux-libre-4.1-gnu/fs/nfs/pnfs.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/fs/nfs/pnfs.c	2015-08-16 23:52:51.000000000 -0400
@@ -1821,6 +1821,7 @@ int pnfs_write_done_resend_to_mds(struct
 	/* Resend all requests through the MDS */
 	nfs_pageio_init_write(&pgio, hdr->inode, FLUSH_STABLE, true,
 			      hdr->completion_ops);
+	set_bit(NFS_CONTEXT_RESEND_WRITES, &hdr->args.context->flags);
 	return nfs_pageio_resend(&pgio, hdr);
 }
 EXPORT_SYMBOL_GPL(pnfs_write_done_resend_to_mds);
@@ -1865,6 +1866,7 @@ pnfs_write_through_mds(struct nfs_pageio
 		mirror->pg_recoalesce = 1;
 	}
 	nfs_pgio_data_destroy(hdr);
+	hdr->release(hdr);
 }
 
 static enum pnfs_try_status
@@ -1979,6 +1981,7 @@ pnfs_read_through_mds(struct nfs_pageio_
 		mirror->pg_recoalesce = 1;
 	}
 	nfs_pgio_data_destroy(hdr);
+	hdr->release(hdr);
 }
 
 /*
diff -druNp --no-dereference linux-libre-4.1-gnu/fs/nfs/write.c linux-libre-4.1.6-gnu/fs/nfs/write.c
--- linux-libre-4.1-gnu/fs/nfs/write.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/fs/nfs/write.c	2015-08-16 23:52:51.000000000 -0400
@@ -1289,6 +1289,7 @@ static void nfs_initiate_write(struct nf
 static void nfs_redirty_request(struct nfs_page *req)
 {
 	nfs_mark_request_dirty(req);
+	set_bit(NFS_CONTEXT_RESEND_WRITES, &req->wb_context->flags);
 	nfs_unlock_request(req);
 	nfs_end_page_writeback(req);
 	nfs_release_request(req);
diff -druNp --no-dereference linux-libre-4.1-gnu/fs/nfsd/nfs4state.c linux-libre-4.1.6-gnu/fs/nfsd/nfs4state.c
--- linux-libre-4.1-gnu/fs/nfsd/nfs4state.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/fs/nfsd/nfs4state.c	2015-08-16 23:52:51.000000000 -0400
@@ -4397,9 +4397,9 @@ laundromat_main(struct work_struct *laun
 	queue_delayed_work(laundry_wq, &nn->laundromat_work, t*HZ);
 }
 
-static inline __be32 nfs4_check_fh(struct svc_fh *fhp, struct nfs4_ol_stateid *stp)
+static inline __be32 nfs4_check_fh(struct svc_fh *fhp, struct nfs4_stid *stp)
 {
-	if (!fh_match(&fhp->fh_handle, &stp->st_stid.sc_file->fi_fhandle))
+	if (!fh_match(&fhp->fh_handle, &stp->sc_file->fi_fhandle))
 		return nfserr_bad_stateid;
 	return nfs_ok;
 }
@@ -4574,20 +4574,48 @@ nfsd4_lookup_stateid(struct nfsd4_compou
 	return nfs_ok;
 }
 
+static struct file *
+nfs4_find_file(struct nfs4_stid *s, int flags)
+{
+	switch (s->sc_type) {
+	case NFS4_DELEG_STID:
+		if (WARN_ON_ONCE(!s->sc_file->fi_deleg_file))
+			return NULL;
+		return get_file(s->sc_file->fi_deleg_file);
+	case NFS4_OPEN_STID:
+	case NFS4_LOCK_STID:
+		if (flags & RD_STATE)
+			return find_readable_file(s->sc_file);
+		else
+			return find_writeable_file(s->sc_file);
+		break;
+	}
+
+	return NULL;
+}
+
+static __be32
+nfs4_check_olstateid(struct svc_fh *fhp, struct nfs4_ol_stateid *ols, int flags)
+{
+	__be32 status;
+
+	status = nfsd4_check_openowner_confirmed(ols);
+	if (status)
+		return status;
+	return nfs4_check_openmode(ols, flags);
+}
+
 /*
-* Checks for stateid operations
-*/
+ * Checks for stateid operations
+ */
 __be32
 nfs4_preprocess_stateid_op(struct net *net, struct nfsd4_compound_state *cstate,
 			   stateid_t *stateid, int flags, struct file **filpp)
 {
-	struct nfs4_stid *s;
-	struct nfs4_ol_stateid *stp = NULL;
-	struct nfs4_delegation *dp = NULL;
-	struct svc_fh *current_fh = &cstate->current_fh;
-	struct inode *ino = d_inode(current_fh->fh_dentry);
+	struct svc_fh *fhp = &cstate->current_fh;
+	struct inode *ino = d_inode(fhp->fh_dentry);
 	struct nfsd_net *nn = net_generic(net, nfsd_net_id);
-	struct file *file = NULL;
+	struct nfs4_stid *s;
 	__be32 status;
 
 	if (filpp)
@@ -4597,60 +4625,39 @@ nfs4_preprocess_stateid_op(struct net *n
 		return nfserr_grace;
 
 	if (ZERO_STATEID(stateid) || ONE_STATEID(stateid))
-		return check_special_stateids(net, current_fh, stateid, flags);
+		return check_special_stateids(net, fhp, stateid, flags);
 
 	status = nfsd4_lookup_stateid(cstate, stateid,
 				NFS4_DELEG_STID|NFS4_OPEN_STID|NFS4_LOCK_STID,
 				&s, nn);
 	if (status)
 		return status;
-	status = check_stateid_generation(stateid, &s->sc_stateid, nfsd4_has_session(cstate));
+	status = check_stateid_generation(stateid, &s->sc_stateid,
+			nfsd4_has_session(cstate));
 	if (status)
 		goto out;
+
 	switch (s->sc_type) {
 	case NFS4_DELEG_STID:
-		dp = delegstateid(s);
-		status = nfs4_check_delegmode(dp, flags);
-		if (status)
-			goto out;
-		if (filpp) {
-			file = dp->dl_stid.sc_file->fi_deleg_file;
-			if (!file) {
-				WARN_ON_ONCE(1);
-				status = nfserr_serverfault;
-				goto out;
-			}
-			get_file(file);
-		}
+		status = nfs4_check_delegmode(delegstateid(s), flags);
 		break;
 	case NFS4_OPEN_STID:
 	case NFS4_LOCK_STID:
-		stp = openlockstateid(s);
-		status = nfs4_check_fh(current_fh, stp);
-		if (status)
-			goto out;
-		status = nfsd4_check_openowner_confirmed(stp);
-		if (status)
-			goto out;
-		status = nfs4_check_openmode(stp, flags);
-		if (status)
-			goto out;
-		if (filpp) {
-			struct nfs4_file *fp = stp->st_stid.sc_file;
-
-			if (flags & RD_STATE)
-				file = find_readable_file(fp);
-			else
-				file = find_writeable_file(fp);
-		}
+		status = nfs4_check_olstateid(fhp, openlockstateid(s), flags);
 		break;
 	default:
 		status = nfserr_bad_stateid;
+		break;
+	}
+	if (status)
 		goto out;
+	status = nfs4_check_fh(fhp, s);
+
+	if (!status && filpp) {
+		*filpp = nfs4_find_file(s, flags);
+		if (!*filpp)
+			status = nfserr_serverfault;
 	}
-	status = nfs_ok;
-	if (file)
-		*filpp = file;
 out:
 	nfs4_put_stid(s);
 	return status;
@@ -4754,7 +4761,7 @@ static __be32 nfs4_seqid_op_checks(struc
 	status = check_stateid_generation(stateid, &stp->st_stid.sc_stateid, nfsd4_has_session(cstate));
 	if (status)
 		return status;
-	return nfs4_check_fh(current_fh, stp);
+	return nfs4_check_fh(current_fh, &stp->st_stid);
 }
 
 /* 
diff -druNp --no-dereference linux-libre-4.1-gnu/fs/nfsd/nfs4xdr.c linux-libre-4.1.6-gnu/fs/nfsd/nfs4xdr.c
--- linux-libre-4.1-gnu/fs/nfsd/nfs4xdr.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/fs/nfsd/nfs4xdr.c	2015-08-16 23:52:51.000000000 -0400
@@ -2142,6 +2142,7 @@ nfsd4_encode_aclname(struct xdr_stream *
 #define WORD0_ABSENT_FS_ATTRS (FATTR4_WORD0_FS_LOCATIONS | FATTR4_WORD0_FSID | \
 			      FATTR4_WORD0_RDATTR_ERROR)
 #define WORD1_ABSENT_FS_ATTRS FATTR4_WORD1_MOUNTED_ON_FILEID
+#define WORD2_ABSENT_FS_ATTRS 0
 
 #ifdef CONFIG_NFSD_V4_SECURITY_LABEL
 static inline __be32
@@ -2170,7 +2171,7 @@ nfsd4_encode_security_label(struct xdr_s
 { return 0; }
 #endif
 
-static __be32 fattr_handle_absent_fs(u32 *bmval0, u32 *bmval1, u32 *rdattr_err)
+static __be32 fattr_handle_absent_fs(u32 *bmval0, u32 *bmval1, u32 *bmval2, u32 *rdattr_err)
 {
 	/* As per referral draft:  */
 	if (*bmval0 & ~WORD0_ABSENT_FS_ATTRS ||
@@ -2183,6 +2184,7 @@ static __be32 fattr_handle_absent_fs(u32
 	}
 	*bmval0 &= WORD0_ABSENT_FS_ATTRS;
 	*bmval1 &= WORD1_ABSENT_FS_ATTRS;
+	*bmval2 &= WORD2_ABSENT_FS_ATTRS;
 	return 0;
 }
 
@@ -2246,8 +2248,7 @@ nfsd4_encode_fattr(struct xdr_stream *xd
 	BUG_ON(bmval2 & ~nfsd_suppattrs2(minorversion));
 
 	if (exp->ex_fslocs.migrated) {
-		BUG_ON(bmval[2]);
-		status = fattr_handle_absent_fs(&bmval0, &bmval1, &rdattr_err);
+		status = fattr_handle_absent_fs(&bmval0, &bmval1, &bmval2, &rdattr_err);
 		if (status)
 			goto out;
 	}
@@ -2290,8 +2291,8 @@ nfsd4_encode_fattr(struct xdr_stream *xd
 	}
 
 #ifdef CONFIG_NFSD_V4_SECURITY_LABEL
-	if ((bmval[2] & FATTR4_WORD2_SECURITY_LABEL) ||
-			bmval[0] & FATTR4_WORD0_SUPPORTED_ATTRS) {
+	if ((bmval2 & FATTR4_WORD2_SECURITY_LABEL) ||
+	     bmval0 & FATTR4_WORD0_SUPPORTED_ATTRS) {
 		err = security_inode_getsecctx(d_inode(dentry),
 						&context, &contextlen);
 		contextsupport = (err == 0);
diff -druNp --no-dereference linux-libre-4.1-gnu/fs/notify/mark.c linux-libre-4.1.6-gnu/fs/notify/mark.c
--- linux-libre-4.1-gnu/fs/notify/mark.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/fs/notify/mark.c	2015-08-16 23:52:51.000000000 -0400
@@ -412,16 +412,36 @@ void fsnotify_clear_marks_by_group_flags
 					 unsigned int flags)
 {
 	struct fsnotify_mark *lmark, *mark;
+	LIST_HEAD(to_free);
 
+	/*
+	 * We have to be really careful here. Anytime we drop mark_mutex, e.g.
+	 * fsnotify_clear_marks_by_inode() can come and free marks. Even in our
+	 * to_free list so we have to use mark_mutex even when accessing that
+	 * list. And freeing mark requires us to drop mark_mutex. So we can
+	 * reliably free only the first mark in the list. That's why we first
+	 * move marks to free to to_free list in one go and then free marks in
+	 * to_free list one by one.
+	 */
 	mutex_lock_nested(&group->mark_mutex, SINGLE_DEPTH_NESTING);
 	list_for_each_entry_safe(mark, lmark, &group->marks_list, g_list) {
-		if (mark->flags & flags) {
-			fsnotify_get_mark(mark);
-			fsnotify_destroy_mark_locked(mark, group);
-			fsnotify_put_mark(mark);
-		}
+		if (mark->flags & flags)
+			list_move(&mark->g_list, &to_free);
 	}
 	mutex_unlock(&group->mark_mutex);
+
+	while (1) {
+		mutex_lock_nested(&group->mark_mutex, SINGLE_DEPTH_NESTING);
+		if (list_empty(&to_free)) {
+			mutex_unlock(&group->mark_mutex);
+			break;
+		}
+		mark = list_first_entry(&to_free, struct fsnotify_mark, g_list);
+		fsnotify_get_mark(mark);
+		fsnotify_destroy_mark_locked(mark, group);
+		mutex_unlock(&group->mark_mutex);
+		fsnotify_put_mark(mark);
+	}
 }
 
 /*
diff -druNp --no-dereference linux-libre-4.1-gnu/fs/ocfs2/aops.c linux-libre-4.1.6-gnu/fs/ocfs2/aops.c
--- linux-libre-4.1-gnu/fs/ocfs2/aops.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/fs/ocfs2/aops.c	2015-08-16 23:52:51.000000000 -0400
@@ -686,7 +686,7 @@ static int ocfs2_direct_IO_zero_extend(s
 
 	if (p_cpos && !(ext_flags & OCFS2_EXT_UNWRITTEN)) {
 		u64 s = i_size_read(inode);
-		sector_t sector = (p_cpos << (osb->s_clustersize_bits - 9)) +
+		sector_t sector = ((u64)p_cpos << (osb->s_clustersize_bits - 9)) +
 			(do_div(s, osb->s_clustersize) >> 9);
 
 		ret = blkdev_issue_zeroout(osb->sb->s_bdev, sector,
@@ -911,7 +911,7 @@ static ssize_t ocfs2_direct_IO_write(str
 		BUG_ON(!p_cpos || (ext_flags & OCFS2_EXT_UNWRITTEN));
 
 		ret = blkdev_issue_zeroout(osb->sb->s_bdev,
-				p_cpos << (osb->s_clustersize_bits - 9),
+				(u64)p_cpos << (osb->s_clustersize_bits - 9),
 				zero_len_head >> 9, GFP_NOFS, false);
 		if (ret < 0)
 			mlog_errno(ret);
diff -druNp --no-dereference linux-libre-4.1-gnu/fs/ocfs2/dlmglue.c linux-libre-4.1.6-gnu/fs/ocfs2/dlmglue.c
--- linux-libre-4.1-gnu/fs/ocfs2/dlmglue.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/fs/ocfs2/dlmglue.c	2015-08-16 23:52:51.000000000 -0400
@@ -4025,9 +4025,13 @@ static void ocfs2_downconvert_thread_do_
 	osb->dc_work_sequence = osb->dc_wake_sequence;
 
 	processed = osb->blocked_lock_count;
-	while (processed) {
-		BUG_ON(list_empty(&osb->blocked_lock_list));
-
+	/*
+	 * blocked lock processing in this loop might call iput which can
+	 * remove items off osb->blocked_lock_list. Downconvert up to
+	 * 'processed' number of locks, but stop short if we had some
+	 * removed in ocfs2_mark_lockres_freeing when downconverting.
+	 */
+	while (processed && !list_empty(&osb->blocked_lock_list)) {
 		lockres = list_entry(osb->blocked_lock_list.next,
 				     struct ocfs2_lock_res, l_blocked_list);
 		list_del_init(&lockres->l_blocked_list);
diff -druNp --no-dereference linux-libre-4.1-gnu/fs/overlayfs/readdir.c linux-libre-4.1.6-gnu/fs/overlayfs/readdir.c
--- linux-libre-4.1-gnu/fs/overlayfs/readdir.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/fs/overlayfs/readdir.c	2015-08-16 23:52:51.000000000 -0400
@@ -23,6 +23,7 @@ struct ovl_cache_entry {
 	u64 ino;
 	struct list_head l_node;
 	struct rb_node node;
+	struct ovl_cache_entry *next_maybe_whiteout;
 	bool is_whiteout;
 	char name[];
 };
@@ -39,7 +40,7 @@ struct ovl_readdir_data {
 	struct rb_root root;
 	struct list_head *list;
 	struct list_head middle;
-	struct dentry *dir;
+	struct ovl_cache_entry *first_maybe_whiteout;
 	int count;
 	int err;
 };
@@ -79,7 +80,7 @@ static struct ovl_cache_entry *ovl_cache
 	return NULL;
 }
 
-static struct ovl_cache_entry *ovl_cache_entry_new(struct dentry *dir,
+static struct ovl_cache_entry *ovl_cache_entry_new(struct ovl_readdir_data *rdd,
 						   const char *name, int len,
 						   u64 ino, unsigned int d_type)
 {
@@ -98,29 +99,8 @@ static struct ovl_cache_entry *ovl_cache
 	p->is_whiteout = false;
 
 	if (d_type == DT_CHR) {
-		struct dentry *dentry;
-		const struct cred *old_cred;
-		struct cred *override_cred;
-
-		override_cred = prepare_creds();
-		if (!override_cred) {
-			kfree(p);
-			return NULL;
-		}
-
-		/*
-		 * CAP_DAC_OVERRIDE for lookup
-		 */
-		cap_raise(override_cred->cap_effective, CAP_DAC_OVERRIDE);
-		old_cred = override_creds(override_cred);
-
-		dentry = lookup_one_len(name, dir, len);
-		if (!IS_ERR(dentry)) {
-			p->is_whiteout = ovl_is_whiteout(dentry);
-			dput(dentry);
-		}
-		revert_creds(old_cred);
-		put_cred(override_cred);
+		p->next_maybe_whiteout = rdd->first_maybe_whiteout;
+		rdd->first_maybe_whiteout = p;
 	}
 	return p;
 }
@@ -148,7 +128,7 @@ static int ovl_cache_entry_add_rb(struct
 			return 0;
 	}
 
-	p = ovl_cache_entry_new(rdd->dir, name, len, ino, d_type);
+	p = ovl_cache_entry_new(rdd, name, len, ino, d_type);
 	if (p == NULL)
 		return -ENOMEM;
 
@@ -169,7 +149,7 @@ static int ovl_fill_lower(struct ovl_rea
 	if (p) {
 		list_move_tail(&p->l_node, &rdd->middle);
 	} else {
-		p = ovl_cache_entry_new(rdd->dir, name, namelen, ino, d_type);
+		p = ovl_cache_entry_new(rdd, name, namelen, ino, d_type);
 		if (p == NULL)
 			rdd->err = -ENOMEM;
 		else
@@ -219,6 +199,43 @@ static int ovl_fill_merge(struct dir_con
 		return ovl_fill_lower(rdd, name, namelen, offset, ino, d_type);
 }
 
+static int ovl_check_whiteouts(struct dentry *dir, struct ovl_readdir_data *rdd)
+{
+	int err;
+	struct ovl_cache_entry *p;
+	struct dentry *dentry;
+	const struct cred *old_cred;
+	struct cred *override_cred;
+
+	override_cred = prepare_creds();
+	if (!override_cred)
+		return -ENOMEM;
+
+	/*
+	 * CAP_DAC_OVERRIDE for lookup
+	 */
+	cap_raise(override_cred->cap_effective, CAP_DAC_OVERRIDE);
+	old_cred = override_creds(override_cred);
+
+	err = mutex_lock_killable(&dir->d_inode->i_mutex);
+	if (!err) {
+		while (rdd->first_maybe_whiteout) {
+			p = rdd->first_maybe_whiteout;
+			rdd->first_maybe_whiteout = p->next_maybe_whiteout;
+			dentry = lookup_one_len(p->name, dir, p->len);
+			if (!IS_ERR(dentry)) {
+				p->is_whiteout = ovl_is_whiteout(dentry);
+				dput(dentry);
+			}
+		}
+		mutex_unlock(&dir->d_inode->i_mutex);
+	}
+	revert_creds(old_cred);
+	put_cred(override_cred);
+
+	return err;
+}
+
 static inline int ovl_dir_read(struct path *realpath,
 			       struct ovl_readdir_data *rdd)
 {
@@ -229,7 +246,7 @@ static inline int ovl_dir_read(struct pa
 	if (IS_ERR(realfile))
 		return PTR_ERR(realfile);
 
-	rdd->dir = realpath->dentry;
+	rdd->first_maybe_whiteout = NULL;
 	rdd->ctx.pos = 0;
 	do {
 		rdd->count = 0;
@@ -238,6 +255,10 @@ static inline int ovl_dir_read(struct pa
 		if (err >= 0)
 			err = rdd->err;
 	} while (!err && rdd->count);
+
+	if (!err && rdd->first_maybe_whiteout)
+		err = ovl_check_whiteouts(realpath->dentry, rdd);
+
 	fput(realfile);
 
 	return err;
diff -druNp --no-dereference linux-libre-4.1-gnu/fs/pnode.h linux-libre-4.1.6-gnu/fs/pnode.h
--- linux-libre-4.1-gnu/fs/pnode.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/fs/pnode.h	2015-08-16 23:52:51.000000000 -0400
@@ -20,8 +20,6 @@
 #define SET_MNT_MARK(m) ((m)->mnt.mnt_flags |= MNT_MARKED)
 #define CLEAR_MNT_MARK(m) ((m)->mnt.mnt_flags &= ~MNT_MARKED)
 #define IS_MNT_LOCKED(m) ((m)->mnt.mnt_flags & MNT_LOCKED)
-#define IS_MNT_LOCKED_AND_LAZY(m) \
-	(((m)->mnt.mnt_flags & (MNT_LOCKED|MNT_SYNC_UMOUNT)) == MNT_LOCKED)
 
 #define CL_EXPIRE    		0x01
 #define CL_SLAVE     		0x02
diff -druNp --no-dereference linux-libre-4.1-gnu/fs/proc/generic.c linux-libre-4.1.6-gnu/fs/proc/generic.c
--- linux-libre-4.1-gnu/fs/proc/generic.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/fs/proc/generic.c	2015-08-16 23:52:51.000000000 -0400
@@ -373,6 +373,10 @@ static struct proc_dir_entry *__proc_cre
 		WARN(1, "create '/proc/%s' by hand\n", qstr.name);
 		return NULL;
 	}
+	if (is_empty_pde(*parent)) {
+		WARN(1, "attempt to add to permanently empty directory");
+		return NULL;
+	}
 
 	ent = kzalloc(sizeof(struct proc_dir_entry) + qstr.len + 1, GFP_KERNEL);
 	if (!ent)
@@ -455,6 +459,25 @@ struct proc_dir_entry *proc_mkdir(const
 }
 EXPORT_SYMBOL(proc_mkdir);
 
+struct proc_dir_entry *proc_create_mount_point(const char *name)
+{
+	umode_t mode = S_IFDIR | S_IRUGO | S_IXUGO;
+	struct proc_dir_entry *ent, *parent = NULL;
+
+	ent = __proc_create(&parent, name, mode, 2);
+	if (ent) {
+		ent->data = NULL;
+		ent->proc_fops = NULL;
+		ent->proc_iops = NULL;
+		if (proc_register(parent, ent) < 0) {
+			kfree(ent);
+			parent->nlink--;
+			ent = NULL;
+		}
+	}
+	return ent;
+}
+
 struct proc_dir_entry *proc_create_data(const char *name, umode_t mode,
 					struct proc_dir_entry *parent,
 					const struct file_operations *proc_fops,
diff -druNp --no-dereference linux-libre-4.1-gnu/fs/proc/inode.c linux-libre-4.1.6-gnu/fs/proc/inode.c
--- linux-libre-4.1-gnu/fs/proc/inode.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/fs/proc/inode.c	2015-08-16 23:52:51.000000000 -0400
@@ -423,6 +423,10 @@ struct inode *proc_get_inode(struct supe
 		inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
 		PROC_I(inode)->pde = de;
 
+		if (is_empty_pde(de)) {
+			make_empty_dir_inode(inode);
+			return inode;
+		}
 		if (de->mode) {
 			inode->i_mode = de->mode;
 			inode->i_uid = de->uid;
diff -druNp --no-dereference linux-libre-4.1-gnu/fs/proc/internal.h linux-libre-4.1.6-gnu/fs/proc/internal.h
--- linux-libre-4.1-gnu/fs/proc/internal.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/fs/proc/internal.h	2015-08-16 23:52:51.000000000 -0400
@@ -191,6 +191,12 @@ static inline struct proc_dir_entry *pde
 }
 extern void pde_put(struct proc_dir_entry *);
 
+static inline bool is_empty_pde(const struct proc_dir_entry *pde)
+{
+	return S_ISDIR(pde->mode) && !pde->proc_iops;
+}
+struct proc_dir_entry *proc_create_mount_point(const char *name);
+
 /*
  * inode.c
  */
diff -druNp --no-dereference linux-libre-4.1-gnu/fs/proc/proc_sysctl.c linux-libre-4.1.6-gnu/fs/proc/proc_sysctl.c
--- linux-libre-4.1-gnu/fs/proc/proc_sysctl.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/fs/proc/proc_sysctl.c	2015-08-16 23:52:51.000000000 -0400
@@ -19,6 +19,28 @@ static const struct inode_operations pro
 static const struct file_operations proc_sys_dir_file_operations;
 static const struct inode_operations proc_sys_dir_operations;
 
+/* Support for permanently empty directories */
+
+struct ctl_table sysctl_mount_point[] = {
+	{ }
+};
+
+static bool is_empty_dir(struct ctl_table_header *head)
+{
+	return head->ctl_table[0].child == sysctl_mount_point;
+}
+
+static void set_empty_dir(struct ctl_dir *dir)
+{
+	dir->header.ctl_table[0].child = sysctl_mount_point;
+}
+
+static void clear_empty_dir(struct ctl_dir *dir)
+
+{
+	dir->header.ctl_table[0].child = NULL;
+}
+
 void proc_sys_poll_notify(struct ctl_table_poll *poll)
 {
 	if (!poll)
@@ -187,6 +209,17 @@ static int insert_header(struct ctl_dir
 	struct ctl_table *entry;
 	int err;
 
+	/* Is this a permanently empty directory? */
+	if (is_empty_dir(&dir->header))
+		return -EROFS;
+
+	/* Am I creating a permanently empty directory? */
+	if (header->ctl_table == sysctl_mount_point) {
+		if (!RB_EMPTY_ROOT(&dir->root))
+			return -EINVAL;
+		set_empty_dir(dir);
+	}
+
 	dir->header.nreg++;
 	header->parent = dir;
 	err = insert_links(header);
@@ -202,6 +235,8 @@ fail:
 	erase_header(header);
 	put_links(header);
 fail_links:
+	if (header->ctl_table == sysctl_mount_point)
+		clear_empty_dir(dir);
 	header->parent = NULL;
 	drop_sysctl_table(&dir->header);
 	return err;
@@ -419,6 +454,8 @@ static struct inode *proc_sys_make_inode
 		inode->i_mode |= S_IFDIR;
 		inode->i_op = &proc_sys_dir_operations;
 		inode->i_fop = &proc_sys_dir_file_operations;
+		if (is_empty_dir(head))
+			make_empty_dir_inode(inode);
 	}
 out:
 	return inode;
diff -druNp --no-dereference linux-libre-4.1-gnu/fs/proc/root.c linux-libre-4.1.6-gnu/fs/proc/root.c
--- linux-libre-4.1-gnu/fs/proc/root.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/fs/proc/root.c	2015-08-16 23:52:51.000000000 -0400
@@ -112,9 +112,6 @@ static struct dentry *proc_mount(struct
 		ns = task_active_pid_ns(current);
 		options = data;
 
-		if (!capable(CAP_SYS_ADMIN) && !fs_fully_visible(fs_type))
-			return ERR_PTR(-EPERM);
-
 		/* Does the mounter have privilege over the pid namespace? */
 		if (!ns_capable(ns->user_ns, CAP_SYS_ADMIN))
 			return ERR_PTR(-EPERM);
@@ -159,7 +156,7 @@ static struct file_system_type proc_fs_t
 	.name		= "proc",
 	.mount		= proc_mount,
 	.kill_sb	= proc_kill_sb,
-	.fs_flags	= FS_USERNS_MOUNT,
+	.fs_flags	= FS_USERNS_VISIBLE | FS_USERNS_MOUNT,
 };
 
 void __init proc_root_init(void)
@@ -182,10 +179,10 @@ void __init proc_root_init(void)
 #endif
 	proc_mkdir("fs", NULL);
 	proc_mkdir("driver", NULL);
-	proc_mkdir("fs/nfsd", NULL); /* somewhere for the nfsd filesystem to be mounted */
+	proc_create_mount_point("fs/nfsd"); /* somewhere for the nfsd filesystem to be mounted */
 #if defined(CONFIG_SUN_OPENPROMFS) || defined(CONFIG_SUN_OPENPROMFS_MODULE)
 	/* just give it a mountpoint */
-	proc_mkdir("openprom", NULL);
+	proc_create_mount_point("openprom");
 #endif
 	proc_tty_init();
 	proc_mkdir("bus", NULL);
diff -druNp --no-dereference linux-libre-4.1-gnu/fs/pstore/inode.c linux-libre-4.1.6-gnu/fs/pstore/inode.c
--- linux-libre-4.1-gnu/fs/pstore/inode.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/fs/pstore/inode.c	2015-08-16 23:52:51.000000000 -0400
@@ -461,22 +461,18 @@ static struct file_system_type pstore_fs
 	.kill_sb	= pstore_kill_sb,
 };
 
-static struct kobject *pstore_kobj;
-
 static int __init init_pstore_fs(void)
 {
-	int err = 0;
+	int err;
 
 	/* Create a convenient mount point for people to access pstore */
-	pstore_kobj = kobject_create_and_add("pstore", fs_kobj);
-	if (!pstore_kobj) {
-		err = -ENOMEM;
+	err = sysfs_create_mount_point(fs_kobj, "pstore");
+	if (err)
 		goto out;
-	}
 
 	err = register_filesystem(&pstore_fs_type);
 	if (err < 0)
-		kobject_put(pstore_kobj);
+		sysfs_remove_mount_point(fs_kobj, "pstore");
 
 out:
 	return err;
diff -druNp --no-dereference linux-libre-4.1-gnu/fs/signalfd.c linux-libre-4.1.6-gnu/fs/signalfd.c
--- linux-libre-4.1-gnu/fs/signalfd.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/fs/signalfd.c	2015-08-16 23:52:51.000000000 -0400
@@ -121,8 +121,9 @@ static int signalfd_copyinfo(struct sign
 		 * Other callers might not initialize the si_lsb field,
 		 * so check explicitly for the right codes here.
 		 */
-		if (kinfo->si_code == BUS_MCEERR_AR ||
-		    kinfo->si_code == BUS_MCEERR_AO)
+		if (kinfo->si_signo == SIGBUS &&
+		    (kinfo->si_code == BUS_MCEERR_AR ||
+		     kinfo->si_code == BUS_MCEERR_AO))
 			err |= __put_user((short) kinfo->si_addr_lsb,
 					  &uinfo->ssi_addr_lsb);
 #endif
diff -druNp --no-dereference linux-libre-4.1-gnu/fs/sysfs/dir.c linux-libre-4.1.6-gnu/fs/sysfs/dir.c
--- linux-libre-4.1-gnu/fs/sysfs/dir.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/fs/sysfs/dir.c	2015-08-16 23:52:51.000000000 -0400
@@ -121,3 +121,37 @@ int sysfs_move_dir_ns(struct kobject *ko
 
 	return kernfs_rename_ns(kn, new_parent, kn->name, new_ns);
 }
+
+/**
+ * sysfs_create_mount_point - create an always empty directory
+ * @parent_kobj:  kobject that will contain this always empty directory
+ * @name: The name of the always empty directory to add
+ */
+int sysfs_create_mount_point(struct kobject *parent_kobj, const char *name)
+{
+	struct kernfs_node *kn, *parent = parent_kobj->sd;
+
+	kn = kernfs_create_empty_dir(parent, name);
+	if (IS_ERR(kn)) {
+		if (PTR_ERR(kn) == -EEXIST)
+			sysfs_warn_dup(parent, name);
+		return PTR_ERR(kn);
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(sysfs_create_mount_point);
+
+/**
+ *	sysfs_remove_mount_point - remove an always empty directory.
+ *	@parent_kobj: kobject that will contain this always empty directory
+ *	@name: The name of the always empty directory to remove
+ *
+ */
+void sysfs_remove_mount_point(struct kobject *parent_kobj, const char *name)
+{
+	struct kernfs_node *parent = parent_kobj->sd;
+
+	kernfs_remove_by_name_ns(parent, name, NULL);
+}
+EXPORT_SYMBOL_GPL(sysfs_remove_mount_point);
diff -druNp --no-dereference linux-libre-4.1-gnu/fs/sysfs/mount.c linux-libre-4.1.6-gnu/fs/sysfs/mount.c
--- linux-libre-4.1-gnu/fs/sysfs/mount.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/fs/sysfs/mount.c	2015-08-16 23:52:51.000000000 -0400
@@ -31,9 +31,6 @@ static struct dentry *sysfs_mount(struct
 	bool new_sb;
 
 	if (!(flags & MS_KERNMOUNT)) {
-		if (!capable(CAP_SYS_ADMIN) && !fs_fully_visible(fs_type))
-			return ERR_PTR(-EPERM);
-
 		if (!kobj_ns_current_may_mount(KOBJ_NS_TYPE_NET))
 			return ERR_PTR(-EPERM);
 	}
@@ -58,7 +55,7 @@ static struct file_system_type sysfs_fs_
 	.name		= "sysfs",
 	.mount		= sysfs_mount,
 	.kill_sb	= sysfs_kill_sb,
-	.fs_flags	= FS_USERNS_MOUNT,
+	.fs_flags	= FS_USERNS_VISIBLE | FS_USERNS_MOUNT,
 };
 
 int __init sysfs_init(void)
diff -druNp --no-dereference linux-libre-4.1-gnu/fs/tracefs/inode.c linux-libre-4.1.6-gnu/fs/tracefs/inode.c
--- linux-libre-4.1-gnu/fs/tracefs/inode.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/fs/tracefs/inode.c	2015-08-16 23:52:51.000000000 -0400
@@ -631,14 +631,12 @@ bool tracefs_initialized(void)
 	return tracefs_registered;
 }
 
-static struct kobject *trace_kobj;
-
 static int __init tracefs_init(void)
 {
 	int retval;
 
-	trace_kobj = kobject_create_and_add("tracing", kernel_kobj);
-	if (!trace_kobj)
+	retval = sysfs_create_mount_point(kernel_kobj, "tracing");
+	if (retval)
 		return -EINVAL;
 
 	retval = register_filesystem(&trace_fs_type);
diff -druNp --no-dereference linux-libre-4.1-gnu/fs/ufs/balloc.c linux-libre-4.1.6-gnu/fs/ufs/balloc.c
--- linux-libre-4.1-gnu/fs/ufs/balloc.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/fs/ufs/balloc.c	2015-08-16 23:52:51.000000000 -0400
@@ -51,8 +51,8 @@ void ufs_free_fragments(struct inode *in
 	
 	if (ufs_fragnum(fragment) + count > uspi->s_fpg)
 		ufs_error (sb, "ufs_free_fragments", "internal error");
-	
-	lock_ufs(sb);
+
+	mutex_lock(&UFS_SB(sb)->s_lock);
 	
 	cgno = ufs_dtog(uspi, fragment);
 	bit = ufs_dtogd(uspi, fragment);
@@ -115,13 +115,13 @@ void ufs_free_fragments(struct inode *in
 	if (sb->s_flags & MS_SYNCHRONOUS)
 		ubh_sync_block(UCPI_UBH(ucpi));
 	ufs_mark_sb_dirty(sb);
-	
-	unlock_ufs(sb);
+
+	mutex_unlock(&UFS_SB(sb)->s_lock);
 	UFSD("EXIT\n");
 	return;
 
 failed:
-	unlock_ufs(sb);
+	mutex_unlock(&UFS_SB(sb)->s_lock);
 	UFSD("EXIT (FAILED)\n");
 	return;
 }
@@ -151,7 +151,7 @@ void ufs_free_blocks(struct inode *inode
 		goto failed;
 	}
 
-	lock_ufs(sb);
+	mutex_lock(&UFS_SB(sb)->s_lock);
 	
 do_more:
 	overflow = 0;
@@ -211,12 +211,12 @@ do_more:
 	}
 
 	ufs_mark_sb_dirty(sb);
-	unlock_ufs(sb);
+	mutex_unlock(&UFS_SB(sb)->s_lock);
 	UFSD("EXIT\n");
 	return;
 
 failed_unlock:
-	unlock_ufs(sb);
+	mutex_unlock(&UFS_SB(sb)->s_lock);
 failed:
 	UFSD("EXIT (FAILED)\n");
 	return;
@@ -357,7 +357,7 @@ u64 ufs_new_fragments(struct inode *inod
 	usb1 = ubh_get_usb_first(uspi);
 	*err = -ENOSPC;
 
-	lock_ufs(sb);
+	mutex_lock(&UFS_SB(sb)->s_lock);
 	tmp = ufs_data_ptr_to_cpu(sb, p);
 
 	if (count + ufs_fragnum(fragment) > uspi->s_fpb) {
@@ -378,19 +378,19 @@ u64 ufs_new_fragments(struct inode *inod
 				  "fragment %llu, tmp %llu\n",
 				  (unsigned long long)fragment,
 				  (unsigned long long)tmp);
-			unlock_ufs(sb);
+			mutex_unlock(&UFS_SB(sb)->s_lock);
 			return INVBLOCK;
 		}
 		if (fragment < UFS_I(inode)->i_lastfrag) {
 			UFSD("EXIT (ALREADY ALLOCATED)\n");
-			unlock_ufs(sb);
+			mutex_unlock(&UFS_SB(sb)->s_lock);
 			return 0;
 		}
 	}
 	else {
 		if (tmp) {
 			UFSD("EXIT (ALREADY ALLOCATED)\n");
-			unlock_ufs(sb);
+			mutex_unlock(&UFS_SB(sb)->s_lock);
 			return 0;
 		}
 	}
@@ -399,7 +399,7 @@ u64 ufs_new_fragments(struct inode *inod
 	 * There is not enough space for user on the device
 	 */
 	if (!capable(CAP_SYS_RESOURCE) && ufs_freespace(uspi, UFS_MINFREE) <= 0) {
-		unlock_ufs(sb);
+		mutex_unlock(&UFS_SB(sb)->s_lock);
 		UFSD("EXIT (FAILED)\n");
 		return 0;
 	}
@@ -424,7 +424,7 @@ u64 ufs_new_fragments(struct inode *inod
 			ufs_clear_frags(inode, result + oldcount,
 					newcount - oldcount, locked_page != NULL);
 		}
-		unlock_ufs(sb);
+		mutex_unlock(&UFS_SB(sb)->s_lock);
 		UFSD("EXIT, result %llu\n", (unsigned long long)result);
 		return result;
 	}
@@ -439,7 +439,7 @@ u64 ufs_new_fragments(struct inode *inod
 						fragment + count);
 		ufs_clear_frags(inode, result + oldcount, newcount - oldcount,
 				locked_page != NULL);
-		unlock_ufs(sb);
+		mutex_unlock(&UFS_SB(sb)->s_lock);
 		UFSD("EXIT, result %llu\n", (unsigned long long)result);
 		return result;
 	}
@@ -477,7 +477,7 @@ u64 ufs_new_fragments(struct inode *inod
 		*err = 0;
 		UFS_I(inode)->i_lastfrag = max(UFS_I(inode)->i_lastfrag,
 						fragment + count);
-		unlock_ufs(sb);
+		mutex_unlock(&UFS_SB(sb)->s_lock);
 		if (newcount < request)
 			ufs_free_fragments (inode, result + newcount, request - newcount);
 		ufs_free_fragments (inode, tmp, oldcount);
@@ -485,7 +485,7 @@ u64 ufs_new_fragments(struct inode *inod
 		return result;
 	}
 
-	unlock_ufs(sb);
+	mutex_unlock(&UFS_SB(sb)->s_lock);
 	UFSD("EXIT (FAILED)\n");
 	return 0;
 }		
diff -druNp --no-dereference linux-libre-4.1-gnu/fs/ufs/ialloc.c linux-libre-4.1.6-gnu/fs/ufs/ialloc.c
--- linux-libre-4.1-gnu/fs/ufs/ialloc.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/fs/ufs/ialloc.c	2015-08-16 23:52:51.000000000 -0400
@@ -69,11 +69,11 @@ void ufs_free_inode (struct inode * inod
 	
 	ino = inode->i_ino;
 
-	lock_ufs(sb);
+	mutex_lock(&UFS_SB(sb)->s_lock);
 
 	if (!((ino > 1) && (ino < (uspi->s_ncg * uspi->s_ipg )))) {
 		ufs_warning(sb, "ufs_free_inode", "reserved inode or nonexistent inode %u\n", ino);
-		unlock_ufs(sb);
+		mutex_unlock(&UFS_SB(sb)->s_lock);
 		return;
 	}
 	
@@ -81,7 +81,7 @@ void ufs_free_inode (struct inode * inod
 	bit = ufs_inotocgoff (ino);
 	ucpi = ufs_load_cylinder (sb, cg);
 	if (!ucpi) {
-		unlock_ufs(sb);
+		mutex_unlock(&UFS_SB(sb)->s_lock);
 		return;
 	}
 	ucg = ubh_get_ucg(UCPI_UBH(ucpi));
@@ -115,7 +115,7 @@ void ufs_free_inode (struct inode * inod
 		ubh_sync_block(UCPI_UBH(ucpi));
 	
 	ufs_mark_sb_dirty(sb);
-	unlock_ufs(sb);
+	mutex_unlock(&UFS_SB(sb)->s_lock);
 	UFSD("EXIT\n");
 }
 
@@ -193,7 +193,7 @@ struct inode *ufs_new_inode(struct inode
 	sbi = UFS_SB(sb);
 	uspi = sbi->s_uspi;
 
-	lock_ufs(sb);
+	mutex_lock(&sbi->s_lock);
 
 	/*
 	 * Try to place the inode in its parent directory
@@ -331,21 +331,21 @@ cg_found:
 			sync_dirty_buffer(bh);
 		brelse(bh);
 	}
-	unlock_ufs(sb);
+	mutex_unlock(&sbi->s_lock);
 
 	UFSD("allocating inode %lu\n", inode->i_ino);
 	UFSD("EXIT\n");
 	return inode;
 
 fail_remove_inode:
-	unlock_ufs(sb);
+	mutex_unlock(&sbi->s_lock);
 	clear_nlink(inode);
 	unlock_new_inode(inode);
 	iput(inode);
 	UFSD("EXIT (FAILED): err %d\n", err);
 	return ERR_PTR(err);
 failed:
-	unlock_ufs(sb);
+	mutex_unlock(&sbi->s_lock);
 	make_bad_inode(inode);
 	iput (inode);
 	UFSD("EXIT (FAILED): err %d\n", err);
diff -druNp --no-dereference linux-libre-4.1-gnu/fs/ufs/inode.c linux-libre-4.1.6-gnu/fs/ufs/inode.c
--- linux-libre-4.1-gnu/fs/ufs/inode.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/fs/ufs/inode.c	2015-08-16 23:52:51.000000000 -0400
@@ -902,6 +902,9 @@ void ufs_evict_inode(struct inode * inod
 	invalidate_inode_buffers(inode);
 	clear_inode(inode);
 
-	if (want_delete)
+	if (want_delete) {
+		lock_ufs(inode->i_sb);
 		ufs_free_inode(inode);
+		unlock_ufs(inode->i_sb);
+	}
 }
diff -druNp --no-dereference linux-libre-4.1-gnu/fs/ufs/namei.c linux-libre-4.1.6-gnu/fs/ufs/namei.c
--- linux-libre-4.1-gnu/fs/ufs/namei.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/fs/ufs/namei.c	2015-08-16 23:52:51.000000000 -0400
@@ -128,12 +128,12 @@ static int ufs_symlink (struct inode * d
 	if (l > sb->s_blocksize)
 		goto out_notlocked;
 
+	lock_ufs(dir->i_sb);
 	inode = ufs_new_inode(dir, S_IFLNK | S_IRWXUGO);
 	err = PTR_ERR(inode);
 	if (IS_ERR(inode))
-		goto out_notlocked;
+		goto out;
 
-	lock_ufs(dir->i_sb);
 	if (l > UFS_SB(sb)->s_uspi->s_maxsymlinklen) {
 		/* slow symlink */
 		inode->i_op = &ufs_symlink_inode_operations;
@@ -174,7 +174,12 @@ static int ufs_link (struct dentry * old
 	inode_inc_link_count(inode);
 	ihold(inode);
 
-	error = ufs_add_nondir(dentry, inode);
+	error = ufs_add_link(dentry, inode);
+	if (error) {
+		inode_dec_link_count(inode);
+		iput(inode);
+	} else
+		d_instantiate(dentry, inode);
 	unlock_ufs(dir->i_sb);
 	return error;
 }
@@ -184,9 +189,13 @@ static int ufs_mkdir(struct inode * dir,
 	struct inode * inode;
 	int err;
 
+	lock_ufs(dir->i_sb);
+	inode_inc_link_count(dir);
+
 	inode = ufs_new_inode(dir, S_IFDIR|mode);
+	err = PTR_ERR(inode);
 	if (IS_ERR(inode))
-		return PTR_ERR(inode);
+		goto out_dir;
 
 	inode->i_op = &ufs_dir_inode_operations;
 	inode->i_fop = &ufs_dir_operations;
@@ -194,9 +203,6 @@ static int ufs_mkdir(struct inode * dir,
 
 	inode_inc_link_count(inode);
 
-	lock_ufs(dir->i_sb);
-	inode_inc_link_count(dir);
-
 	err = ufs_make_empty(inode, dir);
 	if (err)
 		goto out_fail;
@@ -206,6 +212,7 @@ static int ufs_mkdir(struct inode * dir,
 		goto out_fail;
 	unlock_ufs(dir->i_sb);
 
+	unlock_new_inode(inode);
 	d_instantiate(dentry, inode);
 out:
 	return err;
@@ -215,6 +222,7 @@ out_fail:
 	inode_dec_link_count(inode);
 	unlock_new_inode(inode);
 	iput (inode);
+out_dir:
 	inode_dec_link_count(dir);
 	unlock_ufs(dir->i_sb);
 	goto out;
diff -druNp --no-dereference linux-libre-4.1-gnu/fs/ufs/super.c linux-libre-4.1.6-gnu/fs/ufs/super.c
--- linux-libre-4.1-gnu/fs/ufs/super.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/fs/ufs/super.c	2015-08-16 23:52:51.000000000 -0400
@@ -694,6 +694,7 @@ static int ufs_sync_fs(struct super_bloc
 	unsigned flags;
 
 	lock_ufs(sb);
+	mutex_lock(&UFS_SB(sb)->s_lock);
 
 	UFSD("ENTER\n");
 
@@ -711,6 +712,7 @@ static int ufs_sync_fs(struct super_bloc
 	ufs_put_cstotal(sb);
 
 	UFSD("EXIT\n");
+	mutex_unlock(&UFS_SB(sb)->s_lock);
 	unlock_ufs(sb);
 
 	return 0;
@@ -799,6 +801,7 @@ static int ufs_fill_super(struct super_b
 	UFSD("flag %u\n", (int)(sb->s_flags & MS_RDONLY));
 	
 	mutex_init(&sbi->mutex);
+	mutex_init(&sbi->s_lock);
 	spin_lock_init(&sbi->work_lock);
 	INIT_DELAYED_WORK(&sbi->sync_work, delayed_sync_fs);
 	/*
@@ -1277,6 +1280,7 @@ static int ufs_remount (struct super_blo
 
 	sync_filesystem(sb);
 	lock_ufs(sb);
+	mutex_lock(&UFS_SB(sb)->s_lock);
 	uspi = UFS_SB(sb)->s_uspi;
 	flags = UFS_SB(sb)->s_flags;
 	usb1 = ubh_get_usb_first(uspi);
@@ -1290,6 +1294,7 @@ static int ufs_remount (struct super_blo
 	new_mount_opt = 0;
 	ufs_set_opt (new_mount_opt, ONERROR_LOCK);
 	if (!ufs_parse_options (data, &new_mount_opt)) {
+		mutex_unlock(&UFS_SB(sb)->s_lock);
 		unlock_ufs(sb);
 		return -EINVAL;
 	}
@@ -1297,12 +1302,14 @@ static int ufs_remount (struct super_blo
 		new_mount_opt |= ufstype;
 	} else if ((new_mount_opt & UFS_MOUNT_UFSTYPE) != ufstype) {
 		pr_err("ufstype can't be changed during remount\n");
+		mutex_unlock(&UFS_SB(sb)->s_lock);
 		unlock_ufs(sb);
 		return -EINVAL;
 	}
 
 	if ((*mount_flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY)) {
 		UFS_SB(sb)->s_mount_opt = new_mount_opt;
+		mutex_unlock(&UFS_SB(sb)->s_lock);
 		unlock_ufs(sb);
 		return 0;
 	}
@@ -1326,6 +1333,7 @@ static int ufs_remount (struct super_blo
 	 */
 #ifndef CONFIG_UFS_FS_WRITE
 		pr_err("ufs was compiled with read-only support, can't be mounted as read-write\n");
+		mutex_unlock(&UFS_SB(sb)->s_lock);
 		unlock_ufs(sb);
 		return -EINVAL;
 #else
@@ -1335,11 +1343,13 @@ static int ufs_remount (struct super_blo
 		    ufstype != UFS_MOUNT_UFSTYPE_SUNx86 &&
 		    ufstype != UFS_MOUNT_UFSTYPE_UFS2) {
 			pr_err("this ufstype is read-only supported\n");
+			mutex_unlock(&UFS_SB(sb)->s_lock);
 			unlock_ufs(sb);
 			return -EINVAL;
 		}
 		if (!ufs_read_cylinder_structures(sb)) {
 			pr_err("failed during remounting\n");
+			mutex_unlock(&UFS_SB(sb)->s_lock);
 			unlock_ufs(sb);
 			return -EPERM;
 		}
@@ -1347,6 +1357,7 @@ static int ufs_remount (struct super_blo
 #endif
 	}
 	UFS_SB(sb)->s_mount_opt = new_mount_opt;
+	mutex_unlock(&UFS_SB(sb)->s_lock);
 	unlock_ufs(sb);
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.1-gnu/fs/ufs/ufs.h linux-libre-4.1.6-gnu/fs/ufs/ufs.h
--- linux-libre-4.1-gnu/fs/ufs/ufs.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/fs/ufs/ufs.h	2015-08-16 23:52:51.000000000 -0400
@@ -30,6 +30,7 @@ struct ufs_sb_info {
 	int work_queued; /* non-zero if the delayed work is queued */
 	struct delayed_work sync_work; /* FS sync delayed work */
 	spinlock_t work_lock; /* protects sync_work and work_queued */
+	struct mutex s_lock;
 };
 
 struct ufs_inode_info {
diff -druNp --no-dereference linux-libre-4.1-gnu/fs/xfs/libxfs/xfs_attr_remote.c linux-libre-4.1.6-gnu/fs/xfs/libxfs/xfs_attr_remote.c
--- linux-libre-4.1-gnu/fs/xfs/libxfs/xfs_attr_remote.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/fs/xfs/libxfs/xfs_attr_remote.c	2015-08-16 23:52:51.000000000 -0400
@@ -159,11 +159,10 @@ xfs_attr3_rmt_write_verify(
 	struct xfs_buf	*bp)
 {
 	struct xfs_mount *mp = bp->b_target->bt_mount;
-	struct xfs_buf_log_item	*bip = bp->b_fspriv;
+	int		blksize = mp->m_attr_geo->blksize;
 	char		*ptr;
 	int		len;
 	xfs_daddr_t	bno;
-	int		blksize = mp->m_attr_geo->blksize;
 
 	/* no verification of non-crc buffers */
 	if (!xfs_sb_version_hascrc(&mp->m_sb))
@@ -175,16 +174,22 @@ xfs_attr3_rmt_write_verify(
 	ASSERT(len >= blksize);
 
 	while (len > 0) {
+		struct xfs_attr3_rmt_hdr *rmt = (struct xfs_attr3_rmt_hdr *)ptr;
+
 		if (!xfs_attr3_rmt_verify(mp, ptr, blksize, bno)) {
 			xfs_buf_ioerror(bp, -EFSCORRUPTED);
 			xfs_verifier_error(bp);
 			return;
 		}
-		if (bip) {
-			struct xfs_attr3_rmt_hdr *rmt;
 
-			rmt = (struct xfs_attr3_rmt_hdr *)ptr;
-			rmt->rm_lsn = cpu_to_be64(bip->bli_item.li_lsn);
+		/*
+		 * Ensure we aren't writing bogus LSNs to disk. See
+		 * xfs_attr3_rmt_hdr_set() for the explanation.
+		 */
+		if (rmt->rm_lsn != cpu_to_be64(NULLCOMMITLSN)) {
+			xfs_buf_ioerror(bp, -EFSCORRUPTED);
+			xfs_verifier_error(bp);
+			return;
 		}
 		xfs_update_cksum(ptr, blksize, XFS_ATTR3_RMT_CRC_OFF);
 
@@ -221,6 +226,18 @@ xfs_attr3_rmt_hdr_set(
 	rmt->rm_owner = cpu_to_be64(ino);
 	rmt->rm_blkno = cpu_to_be64(bno);
 
+	/*
+	 * Remote attribute blocks are written synchronously, so we don't
+	 * have an LSN that we can stamp in them that makes any sense to log
+	 * recovery. To ensure that log recovery handles overwrites of these
+	 * blocks sanely (i.e. once they've been freed and reallocated as some
+	 * other type of metadata) we need to ensure that the LSN has a value
+	 * that tells log recovery to ignore the LSN and overwrite the buffer
+	 * with whatever is in it's log. To do this, we use the magic
+	 * NULLCOMMITLSN to indicate that the LSN is invalid.
+	 */
+	rmt->rm_lsn = cpu_to_be64(NULLCOMMITLSN);
+
 	return sizeof(struct xfs_attr3_rmt_hdr);
 }
 
@@ -434,14 +451,21 @@ xfs_attr_rmtval_set(
 
 		/*
 		 * Allocate a single extent, up to the size of the value.
+		 *
+		 * Note that we have to consider this a data allocation as we
+		 * write the remote attribute without logging the contents.
+		 * Hence we must ensure that we aren't using blocks that are on
+		 * the busy list so that we don't overwrite blocks which have
+		 * recently been freed but their transactions are not yet
+		 * committed to disk. If we overwrite the contents of a busy
+		 * extent and then crash then the block may not contain the
+		 * correct metadata after log recovery occurs.
 		 */
 		xfs_bmap_init(args->flist, args->firstblock);
 		nmap = 1;
 		error = xfs_bmapi_write(args->trans, dp, (xfs_fileoff_t)lblkno,
-				  blkcnt,
-				  XFS_BMAPI_ATTRFORK | XFS_BMAPI_METADATA,
-				  args->firstblock, args->total, &map, &nmap,
-				  args->flist);
+				  blkcnt, XFS_BMAPI_ATTRFORK, args->firstblock,
+				  args->total, &map, &nmap, args->flist);
 		if (!error) {
 			error = xfs_bmap_finish(&args->trans, args->flist,
 						&committed);
diff -druNp --no-dereference linux-libre-4.1-gnu/fs/xfs/xfs_attr_inactive.c linux-libre-4.1.6-gnu/fs/xfs/xfs_attr_inactive.c
--- linux-libre-4.1-gnu/fs/xfs/xfs_attr_inactive.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/fs/xfs/xfs_attr_inactive.c	2015-08-16 23:52:51.000000000 -0400
@@ -435,8 +435,14 @@ xfs_attr_inactive(
 	 */
 	xfs_trans_ijoin(trans, dp, 0);
 
-	/* invalidate and truncate the attribute fork extents */
-	if (dp->i_d.di_aformat != XFS_DINODE_FMT_LOCAL) {
+	/*
+	 * Invalidate and truncate the attribute fork extents. Make sure the
+	 * fork actually has attributes as otherwise the invalidation has no
+	 * blocks to read and returns an error. In this case, just do the fork
+	 * removal below.
+	 */
+	if (xfs_inode_hasattr(dp) &&
+	    dp->i_d.di_aformat != XFS_DINODE_FMT_LOCAL) {
 		error = xfs_attr3_root_inactive(&trans, dp);
 		if (error)
 			goto out_cancel;
diff -druNp --no-dereference linux-libre-4.1-gnu/fs/xfs/xfs_log_recover.c linux-libre-4.1.6-gnu/fs/xfs/xfs_log_recover.c
--- linux-libre-4.1-gnu/fs/xfs/xfs_log_recover.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/fs/xfs/xfs_log_recover.c	2015-08-16 23:52:51.000000000 -0400
@@ -1887,9 +1887,14 @@ xlog_recover_get_buf_lsn(
 		uuid = &((struct xfs_dir3_blk_hdr *)blk)->uuid;
 		break;
 	case XFS_ATTR3_RMT_MAGIC:
-		lsn = be64_to_cpu(((struct xfs_attr3_rmt_hdr *)blk)->rm_lsn);
-		uuid = &((struct xfs_attr3_rmt_hdr *)blk)->rm_uuid;
-		break;
+		/*
+		 * Remote attr blocks are written synchronously, rather than
+		 * being logged. That means they do not contain a valid LSN
+		 * (i.e. transactionally ordered) in them, and hence any time we
+		 * see a buffer to replay over the top of a remote attribute
+		 * block we should simply do so.
+		 */
+		goto recover_immediately;
 	case XFS_SB_MAGIC:
 		lsn = be64_to_cpu(((struct xfs_dsb *)blk)->sb_lsn);
 		uuid = &((struct xfs_dsb *)blk)->sb_uuid;
diff -druNp --no-dereference linux-libre-4.1-gnu/fs/xfs/xfs_symlink.c linux-libre-4.1.6-gnu/fs/xfs/xfs_symlink.c
--- linux-libre-4.1-gnu/fs/xfs/xfs_symlink.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/fs/xfs/xfs_symlink.c	2015-08-16 23:52:51.000000000 -0400
@@ -104,7 +104,7 @@ xfs_readlink_bmap(
 			cur_chunk += sizeof(struct xfs_dsymlink_hdr);
 		}
 
-		memcpy(link + offset, bp->b_addr, byte_cnt);
+		memcpy(link + offset, cur_chunk, byte_cnt);
 
 		pathlen -= byte_cnt;
 		offset += byte_cnt;
diff -druNp --no-dereference linux-libre-4.1-gnu/include/acpi/acpixf.h linux-libre-4.1.6-gnu/include/acpi/acpixf.h
--- linux-libre-4.1-gnu/include/acpi/acpixf.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/include/acpi/acpixf.h	2015-08-16 23:52:51.000000000 -0400
@@ -195,9 +195,18 @@ ACPI_INIT_GLOBAL(u8, acpi_gbl_do_not_use
  * address. Although ACPICA adheres to the ACPI specification which
  * requires the use of the corresponding 64-bit address if it is non-zero,
  * some machines have been found to have a corrupted non-zero 64-bit
- * address. Default is TRUE, favor the 32-bit addresses.
+ * address. Default is FALSE, do not favor the 32-bit addresses.
  */
-ACPI_INIT_GLOBAL(u8, acpi_gbl_use32_bit_fadt_addresses, TRUE);
+ACPI_INIT_GLOBAL(u8, acpi_gbl_use32_bit_fadt_addresses, FALSE);
+
+/*
+ * Optionally use 32-bit FACS table addresses.
+ * It is reported that some platforms fail to resume from system suspending
+ * if 64-bit FACS table address is selected:
+ * https://bugzilla.kernel.org/show_bug.cgi?id=74021
+ * Default is TRUE, favor the 32-bit addresses.
+ */
+ACPI_INIT_GLOBAL(u8, acpi_gbl_use32_bit_facs_addresses, TRUE);
 
 /*
  * Optionally truncate I/O addresses to 16 bits. Provides compatibility
diff -druNp --no-dereference linux-libre-4.1-gnu/include/acpi/actypes.h linux-libre-4.1.6-gnu/include/acpi/actypes.h
--- linux-libre-4.1-gnu/include/acpi/actypes.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/include/acpi/actypes.h	2015-08-16 23:52:51.000000000 -0400
@@ -572,6 +572,7 @@ typedef u64 acpi_integer;
 #define ACPI_NO_ACPI_ENABLE             0x10
 #define ACPI_NO_DEVICE_INIT             0x20
 #define ACPI_NO_OBJECT_INIT             0x40
+#define ACPI_NO_FACS_INIT               0x80
 
 /*
  * Initialization state
diff -druNp --no-dereference linux-libre-4.1-gnu/include/drm/drm_atomic.h linux-libre-4.1.6-gnu/include/drm/drm_atomic.h
--- linux-libre-4.1-gnu/include/drm/drm_atomic.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/include/drm/drm_atomic.h	2015-08-16 23:52:51.000000000 -0400
@@ -77,26 +77,26 @@ int __must_check drm_atomic_async_commit
 
 #define for_each_connector_in_state(state, connector, connector_state, __i) \
 	for ((__i) = 0;							\
-	     (connector) = (state)->connectors[__i],			\
-	     (connector_state) = (state)->connector_states[__i],	\
-	     (__i) < (state)->num_connector;				\
+	     (__i) < (state)->num_connector &&				\
+	     ((connector) = (state)->connectors[__i],			\
+	     (connector_state) = (state)->connector_states[__i], 1); 	\
 	     (__i)++)							\
 		if (connector)
 
 #define for_each_crtc_in_state(state, crtc, crtc_state, __i)	\
 	for ((__i) = 0;						\
-	     (crtc) = (state)->crtcs[__i],			\
-	     (crtc_state) = (state)->crtc_states[__i],		\
-	     (__i) < (state)->dev->mode_config.num_crtc;	\
+	     (__i) < (state)->dev->mode_config.num_crtc &&	\
+	     ((crtc) = (state)->crtcs[__i],			\
+	     (crtc_state) = (state)->crtc_states[__i], 1);	\
 	     (__i)++)						\
 		if (crtc_state)
 
-#define for_each_plane_in_state(state, plane, plane_state, __i)	\
-	for ((__i) = 0;						\
-	     (plane) = (state)->planes[__i],			\
-	     (plane_state) = (state)->plane_states[__i],	\
-	     (__i) < (state)->dev->mode_config.num_total_plane;	\
-	     (__i)++)						\
+#define for_each_plane_in_state(state, plane, plane_state, __i)		\
+	for ((__i) = 0;							\
+	     (__i) < (state)->dev->mode_config.num_total_plane &&	\
+	     ((plane) = (state)->planes[__i],				\
+	     (plane_state) = (state)->plane_states[__i], 1);		\
+	     (__i)++)							\
 		if (plane_state)
 
 #endif /* DRM_ATOMIC_H_ */
diff -druNp --no-dereference linux-libre-4.1-gnu/include/drm/drm_crtc.h linux-libre-4.1.6-gnu/include/drm/drm_crtc.h
--- linux-libre-4.1-gnu/include/drm/drm_crtc.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/include/drm/drm_crtc.h	2015-08-16 23:52:51.000000000 -0400
@@ -731,6 +731,8 @@ struct drm_connector {
 	uint8_t num_h_tile, num_v_tile;
 	uint8_t tile_h_loc, tile_v_loc;
 	uint16_t tile_h_size, tile_v_size;
+
+	struct list_head destroy_list;
 };
 
 /**
diff -druNp --no-dereference linux-libre-4.1-gnu/include/drm/drm_dp_mst_helper.h linux-libre-4.1.6-gnu/include/drm/drm_dp_mst_helper.h
--- linux-libre-4.1-gnu/include/drm/drm_dp_mst_helper.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/include/drm/drm_dp_mst_helper.h	2015-08-16 23:52:51.000000000 -0400
@@ -463,6 +463,10 @@ struct drm_dp_mst_topology_mgr {
 	struct work_struct work;
 
 	struct work_struct tx_work;
+
+	struct list_head destroy_connector_list;
+	struct mutex destroy_connector_lock;
+	struct work_struct destroy_connector_work;
 };
 
 int drm_dp_mst_topology_mgr_init(struct drm_dp_mst_topology_mgr *mgr, struct device *dev, struct drm_dp_aux *aux, int max_dpcd_transaction_bytes, int max_payloads, int conn_base_id);
diff -druNp --no-dereference linux-libre-4.1-gnu/include/linux/acpi.h linux-libre-4.1.6-gnu/include/linux/acpi.h
--- linux-libre-4.1-gnu/include/linux/acpi.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/include/linux/acpi.h	2015-08-16 23:52:51.000000000 -0400
@@ -440,6 +440,7 @@ extern acpi_status acpi_pci_osc_control_
 #define ACPI_OST_SC_INSERT_NOT_SUPPORTED	0x82
 
 extern void acpi_early_init(void);
+extern void acpi_subsystem_init(void);
 
 extern int acpi_nvs_register(__u64 start, __u64 size);
 
@@ -494,6 +495,7 @@ static inline const char *acpi_dev_name(
 }
 
 static inline void acpi_early_init(void) { }
+static inline void acpi_subsystem_init(void) { }
 
 static inline int early_acpi_boot_init(void)
 {
diff -druNp --no-dereference linux-libre-4.1-gnu/include/linux/ata.h linux-libre-4.1.6-gnu/include/linux/ata.h
--- linux-libre-4.1-gnu/include/linux/ata.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/include/linux/ata.h	2015-08-16 23:52:51.000000000 -0400
@@ -45,6 +45,7 @@ enum {
 	ATA_SECT_SIZE		= 512,
 	ATA_MAX_SECTORS_128	= 128,
 	ATA_MAX_SECTORS		= 256,
+	ATA_MAX_SECTORS_1024    = 1024,
 	ATA_MAX_SECTORS_LBA48	= 65535,/* TODO: 65536? */
 	ATA_MAX_SECTORS_TAPE	= 65535,
 
diff -druNp --no-dereference linux-libre-4.1-gnu/include/linux/buffer_head.h linux-libre-4.1.6-gnu/include/linux/buffer_head.h
--- linux-libre-4.1-gnu/include/linux/buffer_head.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/include/linux/buffer_head.h	2015-08-16 23:52:51.000000000 -0400
@@ -317,6 +317,13 @@ sb_getblk(struct super_block *sb, sector
 	return __getblk_gfp(sb->s_bdev, block, sb->s_blocksize, __GFP_MOVABLE);
 }
 
+
+static inline struct buffer_head *
+sb_getblk_gfp(struct super_block *sb, sector_t block, gfp_t gfp)
+{
+	return __getblk_gfp(sb->s_bdev, block, sb->s_blocksize, gfp);
+}
+
 static inline struct buffer_head *
 sb_find_get_block(struct super_block *sb, sector_t block)
 {
diff -druNp --no-dereference linux-libre-4.1-gnu/include/linux/can/skb.h linux-libre-4.1.6-gnu/include/linux/can/skb.h
--- linux-libre-4.1-gnu/include/linux/can/skb.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/include/linux/can/skb.h	2015-08-16 23:52:51.000000000 -0400
@@ -27,10 +27,12 @@
 /**
  * struct can_skb_priv - private additional data inside CAN sk_buffs
  * @ifindex:	ifindex of the first interface the CAN frame appeared on
+ * @skbcnt:	atomic counter to have an unique id together with skb pointer
  * @cf:		align to the following CAN frame at skb->data
  */
 struct can_skb_priv {
 	int ifindex;
+	int skbcnt;
 	struct can_frame cf[0];
 };
 
diff -druNp --no-dereference linux-libre-4.1-gnu/include/linux/compiler-intel.h linux-libre-4.1.6-gnu/include/linux/compiler-intel.h
--- linux-libre-4.1-gnu/include/linux/compiler-intel.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/include/linux/compiler-intel.h	2015-08-16 23:52:51.000000000 -0400
@@ -13,10 +13,12 @@
 /* Intel ECC compiler doesn't support gcc specific asm stmts.
  * It uses intrinsics to do the equivalent things.
  */
+#undef barrier
 #undef barrier_data
 #undef RELOC_HIDE
 #undef OPTIMIZER_HIDE_VAR
 
+#define barrier() __memory_barrier()
 #define barrier_data(ptr) barrier()
 
 #define RELOC_HIDE(ptr, off)					\
diff -druNp --no-dereference linux-libre-4.1-gnu/include/linux/cper.h linux-libre-4.1.6-gnu/include/linux/cper.h
--- linux-libre-4.1-gnu/include/linux/cper.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/include/linux/cper.h	2015-08-16 23:52:51.000000000 -0400
@@ -340,7 +340,27 @@ struct cper_ia_proc_ctx {
 	__u64	mm_reg_addr;
 };
 
-/* Memory Error Section */
+/* Old Memory Error Section UEFI 2.1, 2.2 */
+struct cper_sec_mem_err_old {
+	__u64	validation_bits;
+	__u64	error_status;
+	__u64	physical_addr;
+	__u64	physical_addr_mask;
+	__u16	node;
+	__u16	card;
+	__u16	module;
+	__u16	bank;
+	__u16	device;
+	__u16	row;
+	__u16	column;
+	__u16	bit_pos;
+	__u64	requestor_id;
+	__u64	responder_id;
+	__u64	target_id;
+	__u8	error_type;
+};
+
+/* Memory Error Section UEFI >= 2.3 */
 struct cper_sec_mem_err {
 	__u64	validation_bits;
 	__u64	error_status;
diff -druNp --no-dereference linux-libre-4.1-gnu/include/linux/fs.h linux-libre-4.1.6-gnu/include/linux/fs.h
--- linux-libre-4.1-gnu/include/linux/fs.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/include/linux/fs.h	2015-08-16 23:52:51.000000000 -0400
@@ -1897,6 +1897,7 @@ struct file_system_type {
 #define FS_HAS_SUBTYPE		4
 #define FS_USERNS_MOUNT		8	/* Can be mounted by userns root */
 #define FS_USERNS_DEV_MOUNT	16 /* A userns mount does not imply MNT_NODEV */
+#define FS_USERNS_VISIBLE	32	/* FS must already be visible */
 #define FS_RENAME_DOES_D_MOVE	32768	/* FS will handle d_move() during rename() internally. */
 	struct dentry *(*mount) (struct file_system_type *, int,
 		       const char *, void *);
@@ -1984,7 +1985,6 @@ extern int vfs_ustat(dev_t, struct kstat
 extern int freeze_super(struct super_block *super);
 extern int thaw_super(struct super_block *super);
 extern bool our_mnt(struct vfsmount *mnt);
-extern bool fs_fully_visible(struct file_system_type *);
 
 extern int current_umask(void);
 
@@ -2780,6 +2780,8 @@ extern struct dentry *simple_lookup(stru
 extern ssize_t generic_read_dir(struct file *, char __user *, size_t, loff_t *);
 extern const struct file_operations simple_dir_operations;
 extern const struct inode_operations simple_dir_inode_operations;
+extern void make_empty_dir_inode(struct inode *inode);
+extern bool is_empty_dir_inode(struct inode *inode);
 struct tree_descr { char *name; const struct file_operations *ops; int mode; };
 struct dentry *d_alloc_name(struct dentry *, const char *);
 extern int simple_fill_super(struct super_block *, unsigned long, struct tree_descr *);
diff -druNp --no-dereference linux-libre-4.1-gnu/include/linux/ftrace.h linux-libre-4.1.6-gnu/include/linux/ftrace.h
--- linux-libre-4.1-gnu/include/linux/ftrace.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/include/linux/ftrace.h	2015-08-16 23:52:51.000000000 -0400
@@ -116,6 +116,7 @@ ftrace_func_t ftrace_ops_get_func(struct
  *            SAVE_REGS. If another ops with this flag set is already registered
  *            for any of the functions that this ops will be registered for, then
  *            this ops will fail to register or set_filter_ip.
+ * PID     - Is affected by set_ftrace_pid (allows filtering on those pids)
  */
 enum {
 	FTRACE_OPS_FL_ENABLED			= 1 << 0,
@@ -132,6 +133,7 @@ enum {
 	FTRACE_OPS_FL_MODIFYING			= 1 << 11,
 	FTRACE_OPS_FL_ALLOC_TRAMP		= 1 << 12,
 	FTRACE_OPS_FL_IPMODIFY			= 1 << 13,
+	FTRACE_OPS_FL_PID			= 1 << 14,
 };
 
 #ifdef CONFIG_DYNAMIC_FTRACE
@@ -159,6 +161,7 @@ struct ftrace_ops {
 	struct ftrace_ops		*next;
 	unsigned long			flags;
 	void				*private;
+	ftrace_func_t			saved_func;
 	int __percpu			*disabled;
 #ifdef CONFIG_DYNAMIC_FTRACE
 	int				nr_trampolines;
diff -druNp --no-dereference linux-libre-4.1-gnu/include/linux/gpio/consumer.h linux-libre-4.1.6-gnu/include/linux/gpio/consumer.h
--- linux-libre-4.1-gnu/include/linux/gpio/consumer.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/include/linux/gpio/consumer.h	2015-08-16 23:52:51.000000000 -0400
@@ -406,6 +406,21 @@ static inline int desc_to_gpio(const str
 	return -EINVAL;
 }
 
+/* Child properties interface */
+struct fwnode_handle;
+
+static inline struct gpio_desc *fwnode_get_named_gpiod(
+	struct fwnode_handle *fwnode, const char *propname)
+{
+	return ERR_PTR(-ENOSYS);
+}
+
+static inline struct gpio_desc *devm_get_gpiod_from_child(
+	struct device *dev, const char *con_id, struct fwnode_handle *child)
+{
+	return ERR_PTR(-ENOSYS);
+}
+
 #endif /* CONFIG_GPIOLIB */
 
 /*
diff -druNp --no-dereference linux-libre-4.1-gnu/include/linux/hid-sensor-hub.h linux-libre-4.1.6-gnu/include/linux/hid-sensor-hub.h
--- linux-libre-4.1-gnu/include/linux/hid-sensor-hub.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/include/linux/hid-sensor-hub.h	2015-08-16 23:52:51.000000000 -0400
@@ -230,6 +230,7 @@ struct hid_sensor_common {
 	struct platform_device *pdev;
 	unsigned usage_id;
 	atomic_t data_ready;
+	atomic_t user_requested_state;
 	struct iio_trigger *trigger;
 	struct hid_sensor_hub_attribute_info poll;
 	struct hid_sensor_hub_attribute_info report_state;
diff -druNp --no-dereference linux-libre-4.1-gnu/include/linux/jbd2.h linux-libre-4.1.6-gnu/include/linux/jbd2.h
--- linux-libre-4.1-gnu/include/linux/jbd2.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/include/linux/jbd2.h	2015-08-16 23:52:51.000000000 -0400
@@ -1035,7 +1035,7 @@ struct buffer_head *jbd2_journal_get_des
 int jbd2_journal_next_log_block(journal_t *, unsigned long long *);
 int jbd2_journal_get_log_tail(journal_t *journal, tid_t *tid,
 			      unsigned long *block);
-void __jbd2_update_log_tail(journal_t *journal, tid_t tid, unsigned long block);
+int __jbd2_update_log_tail(journal_t *journal, tid_t tid, unsigned long block);
 void jbd2_update_log_tail(journal_t *journal, tid_t tid, unsigned long block);
 
 /* Commit management */
@@ -1157,7 +1157,7 @@ extern int	   jbd2_journal_recover    (j
 extern int	   jbd2_journal_wipe       (journal_t *, int);
 extern int	   jbd2_journal_skip_recovery	(journal_t *);
 extern void	   jbd2_journal_update_sb_errno(journal_t *);
-extern void	   jbd2_journal_update_sb_log_tail	(journal_t *, tid_t,
+extern int	   jbd2_journal_update_sb_log_tail	(journal_t *, tid_t,
 				unsigned long, int);
 extern void	   __jbd2_journal_abort_hard	(journal_t *);
 extern void	   jbd2_journal_abort      (journal_t *, int);
diff -druNp --no-dereference linux-libre-4.1-gnu/include/linux/kernfs.h linux-libre-4.1.6-gnu/include/linux/kernfs.h
--- linux-libre-4.1-gnu/include/linux/kernfs.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/include/linux/kernfs.h	2015-08-16 23:52:51.000000000 -0400
@@ -45,6 +45,7 @@ enum kernfs_node_flag {
 	KERNFS_LOCKDEP		= 0x0100,
 	KERNFS_SUICIDAL		= 0x0400,
 	KERNFS_SUICIDED		= 0x0800,
+	KERNFS_EMPTY_DIR	= 0x1000,
 };
 
 /* @flags for kernfs_create_root() */
@@ -285,6 +286,8 @@ void kernfs_destroy_root(struct kernfs_r
 struct kernfs_node *kernfs_create_dir_ns(struct kernfs_node *parent,
 					 const char *name, umode_t mode,
 					 void *priv, const void *ns);
+struct kernfs_node *kernfs_create_empty_dir(struct kernfs_node *parent,
+					    const char *name);
 struct kernfs_node *__kernfs_create_file(struct kernfs_node *parent,
 					 const char *name,
 					 umode_t mode, loff_t size,
diff -druNp --no-dereference linux-libre-4.1-gnu/include/linux/kmemleak.h linux-libre-4.1.6-gnu/include/linux/kmemleak.h
--- linux-libre-4.1-gnu/include/linux/kmemleak.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/include/linux/kmemleak.h	2015-08-16 23:52:51.000000000 -0400
@@ -28,7 +28,8 @@
 extern void kmemleak_init(void) __ref;
 extern void kmemleak_alloc(const void *ptr, size_t size, int min_count,
 			   gfp_t gfp) __ref;
-extern void kmemleak_alloc_percpu(const void __percpu *ptr, size_t size) __ref;
+extern void kmemleak_alloc_percpu(const void __percpu *ptr, size_t size,
+				  gfp_t gfp) __ref;
 extern void kmemleak_free(const void *ptr) __ref;
 extern void kmemleak_free_part(const void *ptr, size_t size) __ref;
 extern void kmemleak_free_percpu(const void __percpu *ptr) __ref;
@@ -71,7 +72,8 @@ static inline void kmemleak_alloc_recurs
 					    gfp_t gfp)
 {
 }
-static inline void kmemleak_alloc_percpu(const void __percpu *ptr, size_t size)
+static inline void kmemleak_alloc_percpu(const void __percpu *ptr, size_t size,
+					 gfp_t gfp)
 {
 }
 static inline void kmemleak_free(const void *ptr)
diff -druNp --no-dereference linux-libre-4.1-gnu/include/linux/libata.h linux-libre-4.1.6-gnu/include/linux/libata.h
--- linux-libre-4.1-gnu/include/linux/libata.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/include/linux/libata.h	2015-08-16 23:52:51.000000000 -0400
@@ -431,6 +431,9 @@ enum {
 	ATA_HORKAGE_NOLPM	= (1 << 20),	/* don't use LPM */
 	ATA_HORKAGE_WD_BROKEN_LPM = (1 << 21),	/* some WDs have broken LPM */
 	ATA_HORKAGE_ZERO_AFTER_TRIM = (1 << 22),/* guarantees zero after trim */
+	ATA_HORKAGE_NO_NCQ_LOG	= (1 << 23),	/* don't use NCQ for log read */
+	ATA_HORKAGE_NOTRIM	= (1 << 24),	/* don't use TRIM */
+	ATA_HORKAGE_MAX_SEC_1024 = (1 << 25),	/* Limit max sects to 1024 */
 
 	 /* DMA mask for user DMA control: User visible values; DO NOT
 	    renumber */
diff -druNp --no-dereference linux-libre-4.1-gnu/include/linux/mtd/nand.h linux-libre-4.1.6-gnu/include/linux/mtd/nand.h
--- linux-libre-4.1-gnu/include/linux/mtd/nand.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/include/linux/mtd/nand.h	2015-08-16 23:52:51.000000000 -0400
@@ -176,17 +176,17 @@ typedef enum {
 /* Chip may not exist, so silence any errors in scan */
 #define NAND_SCAN_SILENT_NODEV	0x00040000
 /*
- * This option could be defined by controller drivers to protect against
- * kmap'ed, vmalloc'ed highmem buffers being passed from upper layers
- */
-#define NAND_USE_BOUNCE_BUFFER	0x00080000
-/*
  * Autodetect nand buswidth with readid/onfi.
  * This suppose the driver will configure the hardware in 8 bits mode
  * when calling nand_scan_ident, and update its configuration
  * before calling nand_scan_tail.
  */
 #define NAND_BUSWIDTH_AUTO      0x00080000
+/*
+ * This option could be defined by controller drivers to protect against
+ * kmap'ed, vmalloc'ed highmem buffers being passed from upper layers
+ */
+#define NAND_USE_BOUNCE_BUFFER	0x00100000
 
 /* Options set by nand scan */
 /* Nand scan has allocated controller struct */
diff -druNp --no-dereference linux-libre-4.1-gnu/include/linux/nfs_xdr.h linux-libre-4.1.6-gnu/include/linux/nfs_xdr.h
--- linux-libre-4.1-gnu/include/linux/nfs_xdr.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/include/linux/nfs_xdr.h	2015-08-16 23:52:51.000000000 -0400
@@ -1142,7 +1142,7 @@ struct nfs41_state_protection {
 	struct nfs4_op_map allow;
 };
 
-#define NFS4_EXCHANGE_ID_LEN	(48)
+#define NFS4_EXCHANGE_ID_LEN	(127)
 struct nfs41_exchange_id_args {
 	struct nfs_client		*client;
 	nfs4_verifier			*verifier;
diff -druNp --no-dereference linux-libre-4.1-gnu/include/linux/of.h linux-libre-4.1.6-gnu/include/linux/of.h
--- linux-libre-4.1-gnu/include/linux/of.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/include/linux/of.h	2015-08-16 23:52:51.000000000 -0400
@@ -673,7 +673,10 @@ static inline void of_property_clear_fla
 #if defined(CONFIG_OF) && defined(CONFIG_NUMA)
 extern int of_node_to_nid(struct device_node *np);
 #else
-static inline int of_node_to_nid(struct device_node *device) { return 0; }
+static inline int of_node_to_nid(struct device_node *device)
+{
+	return NUMA_NO_NODE;
+}
 #endif
 
 static inline struct device_node *of_find_matching_node(
diff -druNp --no-dereference linux-libre-4.1-gnu/include/linux/pci.h linux-libre-4.1.6-gnu/include/linux/pci.h
--- linux-libre-4.1-gnu/include/linux/pci.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/include/linux/pci.h	2015-08-16 23:52:51.000000000 -0400
@@ -577,9 +577,15 @@ int raw_pci_read(unsigned int domain, un
 int raw_pci_write(unsigned int domain, unsigned int bus, unsigned int devfn,
 		  int reg, int len, u32 val);
 
+#ifdef CONFIG_PCI_BUS_ADDR_T_64BIT
+typedef u64 pci_bus_addr_t;
+#else
+typedef u32 pci_bus_addr_t;
+#endif
+
 struct pci_bus_region {
-	dma_addr_t start;
-	dma_addr_t end;
+	pci_bus_addr_t start;
+	pci_bus_addr_t end;
 };
 
 struct pci_dynids {
@@ -1006,6 +1012,7 @@ int __must_check pci_assign_resource(str
 int __must_check pci_reassign_resource(struct pci_dev *dev, int i, resource_size_t add_size, resource_size_t align);
 int pci_select_bars(struct pci_dev *dev, unsigned long flags);
 bool pci_device_is_present(struct pci_dev *pdev);
+void pci_ignore_hotplug(struct pci_dev *dev);
 
 /* ROM control related routines */
 int pci_enable_rom(struct pci_dev *pdev);
@@ -1043,11 +1050,6 @@ bool pci_dev_run_wake(struct pci_dev *de
 bool pci_check_pme_status(struct pci_dev *dev);
 void pci_pme_wakeup_bus(struct pci_bus *bus);
 
-static inline void pci_ignore_hotplug(struct pci_dev *dev)
-{
-	dev->ignore_hotplug = 1;
-}
-
 static inline int pci_enable_wake(struct pci_dev *dev, pci_power_t state,
 				  bool enable)
 {
@@ -1128,7 +1130,7 @@ int __must_check pci_bus_alloc_resource(
 
 int pci_remap_iospace(const struct resource *res, phys_addr_t phys_addr);
 
-static inline dma_addr_t pci_bus_address(struct pci_dev *pdev, int bar)
+static inline pci_bus_addr_t pci_bus_address(struct pci_dev *pdev, int bar)
 {
 	struct pci_bus_region region;
 
diff -druNp --no-dereference linux-libre-4.1-gnu/include/linux/power_supply.h linux-libre-4.1.6-gnu/include/linux/power_supply.h
--- linux-libre-4.1-gnu/include/linux/power_supply.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/include/linux/power_supply.h	2015-08-16 23:52:51.000000000 -0400
@@ -237,6 +237,7 @@ struct power_supply {
 	/* private */
 	struct device dev;
 	struct work_struct changed_work;
+	struct delayed_work deferred_register_work;
 	spinlock_t changed_lock;
 	bool changed;
 	atomic_t use_cnt;
diff -druNp --no-dereference linux-libre-4.1-gnu/include/linux/sysctl.h linux-libre-4.1.6-gnu/include/linux/sysctl.h
--- linux-libre-4.1-gnu/include/linux/sysctl.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/include/linux/sysctl.h	2015-08-16 23:52:51.000000000 -0400
@@ -188,6 +188,9 @@ struct ctl_table_header *register_sysctl
 void unregister_sysctl_table(struct ctl_table_header * table);
 
 extern int sysctl_init(void);
+
+extern struct ctl_table sysctl_mount_point[];
+
 #else /* CONFIG_SYSCTL */
 static inline struct ctl_table_header *register_sysctl_table(struct ctl_table * table)
 {
diff -druNp --no-dereference linux-libre-4.1-gnu/include/linux/sysfs.h linux-libre-4.1.6-gnu/include/linux/sysfs.h
--- linux-libre-4.1-gnu/include/linux/sysfs.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/include/linux/sysfs.h	2015-08-16 23:52:51.000000000 -0400
@@ -210,6 +210,10 @@ int __must_check sysfs_rename_dir_ns(str
 int __must_check sysfs_move_dir_ns(struct kobject *kobj,
 				   struct kobject *new_parent_kobj,
 				   const void *new_ns);
+int __must_check sysfs_create_mount_point(struct kobject *parent_kobj,
+					  const char *name);
+void sysfs_remove_mount_point(struct kobject *parent_kobj,
+			      const char *name);
 
 int __must_check sysfs_create_file_ns(struct kobject *kobj,
 				      const struct attribute *attr,
@@ -298,6 +302,17 @@ static inline int sysfs_move_dir_ns(stru
 	return 0;
 }
 
+static inline int sysfs_create_mount_point(struct kobject *parent_kobj,
+					   const char *name)
+{
+	return 0;
+}
+
+static inline void sysfs_remove_mount_point(struct kobject *parent_kobj,
+					    const char *name)
+{
+}
+
 static inline int sysfs_create_file_ns(struct kobject *kobj,
 				       const struct attribute *attr,
 				       const void *ns)
diff -druNp --no-dereference linux-libre-4.1-gnu/include/linux/types.h linux-libre-4.1.6-gnu/include/linux/types.h
--- linux-libre-4.1-gnu/include/linux/types.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/include/linux/types.h	2015-08-16 23:52:51.000000000 -0400
@@ -139,12 +139,20 @@ typedef unsigned long blkcnt_t;
  */
 #define pgoff_t unsigned long
 
-/* A dma_addr_t can hold any valid DMA or bus address for the platform */
+/*
+ * A dma_addr_t can hold any valid DMA address, i.e., any address returned
+ * by the DMA API.
+ *
+ * If the DMA API only uses 32-bit addresses, dma_addr_t need only be 32
+ * bits wide.  Bus addresses, e.g., PCI BARs, may be wider than 32 bits,
+ * but drivers do memory-mapped I/O to ioremapped kernel virtual addresses,
+ * so they don't care about the size of the actual bus addresses.
+ */
 #ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT
 typedef u64 dma_addr_t;
 #else
 typedef u32 dma_addr_t;
-#endif /* dma_addr_t */
+#endif
 
 typedef unsigned __bitwise__ gfp_t;
 typedef unsigned __bitwise__ fmode_t;
diff -druNp --no-dereference linux-libre-4.1-gnu/include/net/netns/sctp.h linux-libre-4.1.6-gnu/include/net/netns/sctp.h
--- linux-libre-4.1-gnu/include/net/netns/sctp.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/include/net/netns/sctp.h	2015-08-16 23:52:51.000000000 -0400
@@ -31,6 +31,7 @@ struct netns_sctp {
 	struct list_head addr_waitq;
 	struct timer_list addr_wq_timer;
 	struct list_head auto_asconf_splist;
+	/* Lock that protects both addr_waitq and auto_asconf_splist */
 	spinlock_t addr_wq_lock;
 
 	/* Lock that protects the local_addr_list writers */
diff -druNp --no-dereference linux-libre-4.1-gnu/include/net/sctp/structs.h linux-libre-4.1.6-gnu/include/net/sctp/structs.h
--- linux-libre-4.1-gnu/include/net/sctp/structs.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/include/net/sctp/structs.h	2015-08-16 23:52:51.000000000 -0400
@@ -223,6 +223,10 @@ struct sctp_sock {
 	atomic_t pd_mode;
 	/* Receive to here while partial delivery is in effect. */
 	struct sk_buff_head pd_lobby;
+
+	/* These must be the last fields, as they will skipped on copies,
+	 * like on accept and peeloff operations
+	 */
 	struct list_head auto_asconf_list;
 	int do_auto_asconf;
 };
diff -druNp --no-dereference linux-libre-4.1-gnu/include/target/iscsi/iscsi_target_core.h linux-libre-4.1.6-gnu/include/target/iscsi/iscsi_target_core.h
--- linux-libre-4.1-gnu/include/target/iscsi/iscsi_target_core.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/include/target/iscsi/iscsi_target_core.h	2015-08-16 23:52:51.000000000 -0400
@@ -606,6 +606,7 @@ struct iscsi_conn {
 	int			bitmap_id;
 	int			rx_thread_active;
 	struct task_struct	*rx_thread;
+	struct completion	rx_login_comp;
 	int			tx_thread_active;
 	struct task_struct	*tx_thread;
 	/* list_head for session connection list */
diff -druNp --no-dereference linux-libre-4.1-gnu/include/uapi/drm/i915_drm.h linux-libre-4.1.6-gnu/include/uapi/drm/i915_drm.h
--- linux-libre-4.1-gnu/include/uapi/drm/i915_drm.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/include/uapi/drm/i915_drm.h	2015-08-16 23:52:51.000000000 -0400
@@ -1065,6 +1065,14 @@ struct drm_i915_reg_read {
 	__u64 offset;
 	__u64 val; /* Return value */
 };
+/* Known registers:
+ *
+ * Render engine timestamp - 0x2358 + 64bit - gen7+
+ * - Note this register returns an invalid value if using the default
+ *   single instruction 8byte read, in order to workaround that use
+ *   offset (0x2538 | 1) instead.
+ *
+ */
 
 struct drm_i915_reset_stats {
 	__u32 ctx_id;
diff -druNp --no-dereference linux-libre-4.1-gnu/include/uapi/linux/pci_regs.h linux-libre-4.1.6-gnu/include/uapi/linux/pci_regs.h
--- linux-libre-4.1-gnu/include/uapi/linux/pci_regs.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/include/uapi/linux/pci_regs.h	2015-08-16 23:52:51.000000000 -0400
@@ -319,6 +319,7 @@
 #define PCI_MSIX_PBA		8	/* Pending Bit Array offset */
 #define  PCI_MSIX_PBA_BIR	0x00000007 /* BAR index */
 #define  PCI_MSIX_PBA_OFFSET	0xfffffff8 /* Offset into specified BAR */
+#define PCI_MSIX_FLAGS_BIRMASK	PCI_MSIX_PBA_BIR /* deprecated */
 #define PCI_CAP_MSIX_SIZEOF	12	/* size of MSIX registers */
 
 /* MSI-X Table entry format */
diff -druNp --no-dereference linux-libre-4.1-gnu/init/main.c linux-libre-4.1.6-gnu/init/main.c
--- linux-libre-4.1-gnu/init/main.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/init/main.c	2015-08-16 23:52:51.000000000 -0400
@@ -664,6 +664,7 @@ asmlinkage __visible void __init start_k
 
 	check_bugs();
 
+	acpi_subsystem_init();
 	sfi_init_late();
 
 	if (efi_enabled(EFI_RUNTIME_SERVICES)) {
diff -druNp --no-dereference linux-libre-4.1-gnu/ipc/mqueue.c linux-libre-4.1.6-gnu/ipc/mqueue.c
--- linux-libre-4.1-gnu/ipc/mqueue.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/ipc/mqueue.c	2015-08-16 23:52:51.000000000 -0400
@@ -143,7 +143,6 @@ static int msg_insert(struct msg_msg *ms
 		if (!leaf)
 			return -ENOMEM;
 		INIT_LIST_HEAD(&leaf->msg_list);
-		info->qsize += sizeof(*leaf);
 	}
 	leaf->priority = msg->m_type;
 	rb_link_node(&leaf->rb_node, parent, p);
@@ -188,7 +187,6 @@ try_again:
 			     "lazy leaf delete!\n");
 		rb_erase(&leaf->rb_node, &info->msg_tree);
 		if (info->node_cache) {
-			info->qsize -= sizeof(*leaf);
 			kfree(leaf);
 		} else {
 			info->node_cache = leaf;
@@ -201,7 +199,6 @@ try_again:
 		if (list_empty(&leaf->msg_list)) {
 			rb_erase(&leaf->rb_node, &info->msg_tree);
 			if (info->node_cache) {
-				info->qsize -= sizeof(*leaf);
 				kfree(leaf);
 			} else {
 				info->node_cache = leaf;
@@ -1026,7 +1023,6 @@ SYSCALL_DEFINE5(mq_timedsend, mqd_t, mqd
 		/* Save our speculative allocation into the cache */
 		INIT_LIST_HEAD(&new_leaf->msg_list);
 		info->node_cache = new_leaf;
-		info->qsize += sizeof(*new_leaf);
 		new_leaf = NULL;
 	} else {
 		kfree(new_leaf);
@@ -1133,7 +1129,6 @@ SYSCALL_DEFINE5(mq_timedreceive, mqd_t,
 		/* Save our speculative allocation into the cache */
 		INIT_LIST_HEAD(&new_leaf->msg_list);
 		info->node_cache = new_leaf;
-		info->qsize += sizeof(*new_leaf);
 	} else {
 		kfree(new_leaf);
 	}
diff -druNp --no-dereference linux-libre-4.1-gnu/kernel/cgroup.c linux-libre-4.1.6-gnu/kernel/cgroup.c
--- linux-libre-4.1-gnu/kernel/cgroup.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/kernel/cgroup.c	2015-08-16 23:52:51.000000000 -0400
@@ -1924,8 +1924,6 @@ static struct file_system_type cgroup_fs
 	.kill_sb = cgroup_kill_sb,
 };
 
-static struct kobject *cgroup_kobj;
-
 /**
  * task_cgroup_path - cgroup path of a task in the first cgroup hierarchy
  * @task: target task
@@ -5044,13 +5042,13 @@ int __init cgroup_init(void)
 			ss->bind(init_css_set.subsys[ssid]);
 	}
 
-	cgroup_kobj = kobject_create_and_add("cgroup", fs_kobj);
-	if (!cgroup_kobj)
-		return -ENOMEM;
+	err = sysfs_create_mount_point(fs_kobj, "cgroup");
+	if (err)
+		return err;
 
 	err = register_filesystem(&cgroup_fs_type);
 	if (err < 0) {
-		kobject_put(cgroup_kobj);
+		sysfs_remove_mount_point(fs_kobj, "cgroup");
 		return err;
 	}
 
diff -druNp --no-dereference linux-libre-4.1-gnu/kernel/events/core.c linux-libre-4.1.6-gnu/kernel/events/core.c
--- linux-libre-4.1-gnu/kernel/events/core.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/kernel/events/core.c	2015-08-16 23:52:51.000000000 -0400
@@ -4331,20 +4331,20 @@ static void ring_buffer_attach(struct pe
 		WARN_ON_ONCE(event->rcu_pending);
 
 		old_rb = event->rb;
-		event->rcu_batches = get_state_synchronize_rcu();
-		event->rcu_pending = 1;
-
 		spin_lock_irqsave(&old_rb->event_lock, flags);
 		list_del_rcu(&event->rb_entry);
 		spin_unlock_irqrestore(&old_rb->event_lock, flags);
-	}
 
-	if (event->rcu_pending && rb) {
-		cond_synchronize_rcu(event->rcu_batches);
-		event->rcu_pending = 0;
+		event->rcu_batches = get_state_synchronize_rcu();
+		event->rcu_pending = 1;
 	}
 
 	if (rb) {
+		if (event->rcu_pending) {
+			cond_synchronize_rcu(event->rcu_batches);
+			event->rcu_pending = 0;
+		}
+
 		spin_lock_irqsave(&rb->event_lock, flags);
 		list_add_rcu(&event->rb_entry, &rb->event_list);
 		spin_unlock_irqrestore(&rb->event_lock, flags);
diff -druNp --no-dereference linux-libre-4.1-gnu/kernel/irq/devres.c linux-libre-4.1.6-gnu/kernel/irq/devres.c
--- linux-libre-4.1-gnu/kernel/irq/devres.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/kernel/irq/devres.c	2015-08-16 23:52:51.000000000 -0400
@@ -104,7 +104,7 @@ int devm_request_any_context_irq(struct
 		return -ENOMEM;
 
 	rc = request_any_context_irq(irq, handler, irqflags, devname, dev_id);
-	if (rc) {
+	if (rc < 0) {
 		devres_free(dr);
 		return rc;
 	}
@@ -113,7 +113,7 @@ int devm_request_any_context_irq(struct
 	dr->dev_id = dev_id;
 	devres_add(dev, dr);
 
-	return 0;
+	return rc;
 }
 EXPORT_SYMBOL(devm_request_any_context_irq);
 
diff -druNp --no-dereference linux-libre-4.1-gnu/kernel/irq/resend.c linux-libre-4.1.6-gnu/kernel/irq/resend.c
--- linux-libre-4.1-gnu/kernel/irq/resend.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/kernel/irq/resend.c	2015-08-16 23:52:51.000000000 -0400
@@ -75,13 +75,21 @@ void check_irq_resend(struct irq_desc *d
 		    !desc->irq_data.chip->irq_retrigger(&desc->irq_data)) {
 #ifdef CONFIG_HARDIRQS_SW_RESEND
 			/*
-			 * If the interrupt has a parent irq and runs
-			 * in the thread context of the parent irq,
-			 * retrigger the parent.
+			 * If the interrupt is running in the thread
+			 * context of the parent irq we need to be
+			 * careful, because we cannot trigger it
+			 * directly.
 			 */
-			if (desc->parent_irq &&
-			    irq_settings_is_nested_thread(desc))
+			if (irq_settings_is_nested_thread(desc)) {
+				/*
+				 * If the parent_irq is valid, we
+				 * retrigger the parent, otherwise we
+				 * do nothing.
+				 */
+				if (!desc->parent_irq)
+					return;
 				irq = desc->parent_irq;
+			}
 			/* Set it pending and activate the softirq: */
 			set_bit(irq, irqs_resend);
 			tasklet_schedule(&resend_tasklet);
diff -druNp --no-dereference linux-libre-4.1-gnu/kernel/livepatch/core.c linux-libre-4.1.6-gnu/kernel/livepatch/core.c
--- linux-libre-4.1-gnu/kernel/livepatch/core.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/kernel/livepatch/core.c	2015-08-16 23:52:51.000000000 -0400
@@ -179,7 +179,9 @@ static int klp_find_object_symbol(const
 		.count = 0
 	};
 
+	mutex_lock(&module_mutex);
 	kallsyms_on_each_symbol(klp_find_callback, &args);
+	mutex_unlock(&module_mutex);
 
 	if (args.count == 0)
 		pr_err("symbol '%s' not found in symbol table\n", name);
@@ -219,13 +221,19 @@ static int klp_verify_vmlinux_symbol(con
 		.name = name,
 		.addr = addr,
 	};
+	int ret;
 
-	if (kallsyms_on_each_symbol(klp_verify_callback, &args))
-		return 0;
+	mutex_lock(&module_mutex);
+	ret = kallsyms_on_each_symbol(klp_verify_callback, &args);
+	mutex_unlock(&module_mutex);
 
-	pr_err("symbol '%s' not found at specified address 0x%016lx, kernel mismatch?\n",
-		name, addr);
-	return -EINVAL;
+	if (!ret) {
+		pr_err("symbol '%s' not found at specified address 0x%016lx, kernel mismatch?\n",
+			name, addr);
+		return -EINVAL;
+	}
+
+	return 0;
 }
 
 static int klp_find_verify_func_addr(struct klp_object *obj,
diff -druNp --no-dereference linux-libre-4.1-gnu/kernel/power/Kconfig linux-libre-4.1.6-gnu/kernel/power/Kconfig
--- linux-libre-4.1-gnu/kernel/power/Kconfig	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/kernel/power/Kconfig	2015-08-16 23:52:51.000000000 -0400
@@ -187,7 +187,7 @@ config DPM_WATCHDOG
 config DPM_WATCHDOG_TIMEOUT
 	int "Watchdog timeout in seconds"
 	range 1 120
-	default 12
+	default 60
 	depends on DPM_WATCHDOG
 
 config PM_TRACE
diff -druNp --no-dereference linux-libre-4.1-gnu/kernel/printk/printk.c linux-libre-4.1.6-gnu/kernel/printk/printk.c
--- linux-libre-4.1-gnu/kernel/printk/printk.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/kernel/printk/printk.c	2015-08-16 23:52:51.000000000 -0400
@@ -484,11 +484,11 @@ int check_syslog_permissions(int type, b
 	 * already done the capabilities checks at open time.
 	 */
 	if (from_file && type != SYSLOG_ACTION_OPEN)
-		return 0;
+		goto ok;
 
 	if (syslog_action_restricted(type)) {
 		if (capable(CAP_SYSLOG))
-			return 0;
+			goto ok;
 		/*
 		 * For historical reasons, accept CAP_SYS_ADMIN too, with
 		 * a warning.
@@ -498,10 +498,11 @@ int check_syslog_permissions(int type, b
 				     "CAP_SYS_ADMIN but no CAP_SYSLOG "
 				     "(deprecated).\n",
 				 current->comm, task_pid_nr(current));
-			return 0;
+			goto ok;
 		}
 		return -EPERM;
 	}
+ok:
 	return security_syslog(type);
 }
 
@@ -1263,10 +1264,6 @@ int do_syslog(int type, char __user *buf
 	if (error)
 		goto out;
 
-	error = security_syslog(type);
-	if (error)
-		return error;
-
 	switch (type) {
 	case SYSLOG_ACTION_CLOSE:	/* Close log */
 		break;
diff -druNp --no-dereference linux-libre-4.1-gnu/kernel/rcu/tiny.c linux-libre-4.1.6-gnu/kernel/rcu/tiny.c
--- linux-libre-4.1-gnu/kernel/rcu/tiny.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/kernel/rcu/tiny.c	2015-08-16 23:52:51.000000000 -0400
@@ -170,6 +170,11 @@ static void __rcu_process_callbacks(stru
 
 	/* Move the ready-to-invoke callbacks to a local list. */
 	local_irq_save(flags);
+	if (rcp->donetail == &rcp->rcucblist) {
+		/* No callbacks ready, so just leave. */
+		local_irq_restore(flags);
+		return;
+	}
 	RCU_TRACE(trace_rcu_batch_start(rcp->name, 0, rcp->qlen, -1));
 	list = rcp->rcucblist;
 	rcp->rcucblist = *rcp->donetail;
diff -druNp --no-dereference linux-libre-4.1-gnu/kernel/signal.c linux-libre-4.1.6-gnu/kernel/signal.c
--- linux-libre-4.1-gnu/kernel/signal.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/kernel/signal.c	2015-08-16 23:52:51.000000000 -0400
@@ -2753,12 +2753,15 @@ int copy_siginfo_to_user(siginfo_t __use
 		 * Other callers might not initialize the si_lsb field,
 		 * so check explicitly for the right codes here.
 		 */
-		if (from->si_code == BUS_MCEERR_AR || from->si_code == BUS_MCEERR_AO)
+		if (from->si_signo == SIGBUS &&
+		    (from->si_code == BUS_MCEERR_AR || from->si_code == BUS_MCEERR_AO))
 			err |= __put_user(from->si_addr_lsb, &to->si_addr_lsb);
 #endif
 #ifdef SEGV_BNDERR
-		err |= __put_user(from->si_lower, &to->si_lower);
-		err |= __put_user(from->si_upper, &to->si_upper);
+		if (from->si_signo == SIGSEGV && from->si_code == SEGV_BNDERR) {
+			err |= __put_user(from->si_lower, &to->si_lower);
+			err |= __put_user(from->si_upper, &to->si_upper);
+		}
 #endif
 		break;
 	case __SI_CHLD:
@@ -3022,7 +3025,7 @@ COMPAT_SYSCALL_DEFINE3(rt_sigqueueinfo,
 			int, sig,
 			struct compat_siginfo __user *, uinfo)
 {
-	siginfo_t info;
+	siginfo_t info = {};
 	int ret = copy_siginfo_from_user32(&info, uinfo);
 	if (unlikely(ret))
 		return ret;
@@ -3066,7 +3069,7 @@ COMPAT_SYSCALL_DEFINE4(rt_tgsigqueueinfo
 			int, sig,
 			struct compat_siginfo __user *, uinfo)
 {
-	siginfo_t info;
+	siginfo_t info = {};
 
 	if (copy_siginfo_from_user32(&info, uinfo))
 		return -EFAULT;
diff -druNp --no-dereference linux-libre-4.1-gnu/kernel/sysctl.c linux-libre-4.1.6-gnu/kernel/sysctl.c
--- linux-libre-4.1-gnu/kernel/sysctl.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/kernel/sysctl.c	2015-08-16 23:52:51.000000000 -0400
@@ -1531,12 +1531,6 @@ static struct ctl_table vm_table[] = {
 	{ }
 };
 
-#if defined(CONFIG_BINFMT_MISC) || defined(CONFIG_BINFMT_MISC_MODULE)
-static struct ctl_table binfmt_misc_table[] = {
-	{ }
-};
-#endif
-
 static struct ctl_table fs_table[] = {
 	{
 		.procname	= "inode-nr",
@@ -1690,7 +1684,7 @@ static struct ctl_table fs_table[] = {
 	{
 		.procname	= "binfmt_misc",
 		.mode		= 0555,
-		.child		= binfmt_misc_table,
+		.child		= sysctl_mount_point,
 	},
 #endif
 	{
diff -druNp --no-dereference linux-libre-4.1-gnu/kernel/trace/ftrace.c linux-libre-4.1.6-gnu/kernel/trace/ftrace.c
--- linux-libre-4.1-gnu/kernel/trace/ftrace.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/kernel/trace/ftrace.c	2015-08-16 23:52:51.000000000 -0400
@@ -98,6 +98,13 @@ struct ftrace_pid {
 	struct pid *pid;
 };
 
+static bool ftrace_pids_enabled(void)
+{
+	return !list_empty(&ftrace_pids);
+}
+
+static void ftrace_update_trampoline(struct ftrace_ops *ops);
+
 /*
  * ftrace_disabled is set when an anomaly is discovered.
  * ftrace_disabled is much stronger than ftrace_enabled.
@@ -109,7 +116,6 @@ static DEFINE_MUTEX(ftrace_lock);
 static struct ftrace_ops *ftrace_control_list __read_mostly = &ftrace_list_end;
 static struct ftrace_ops *ftrace_ops_list __read_mostly = &ftrace_list_end;
 ftrace_func_t ftrace_trace_function __read_mostly = ftrace_stub;
-ftrace_func_t ftrace_pid_function __read_mostly = ftrace_stub;
 static struct ftrace_ops global_ops;
 static struct ftrace_ops control_ops;
 
@@ -183,14 +189,7 @@ static void ftrace_pid_func(unsigned lon
 	if (!test_tsk_trace_trace(current))
 		return;
 
-	ftrace_pid_function(ip, parent_ip, op, regs);
-}
-
-static void set_ftrace_pid_function(ftrace_func_t func)
-{
-	/* do not set ftrace_pid_function to itself! */
-	if (func != ftrace_pid_func)
-		ftrace_pid_function = func;
+	op->saved_func(ip, parent_ip, op, regs);
 }
 
 /**
@@ -202,7 +201,6 @@ static void set_ftrace_pid_function(ftra
 void clear_ftrace_function(void)
 {
 	ftrace_trace_function = ftrace_stub;
-	ftrace_pid_function = ftrace_stub;
 }
 
 static void control_ops_disable_all(struct ftrace_ops *ops)
@@ -436,6 +434,12 @@ static int __register_ftrace_function(st
 	} else
 		add_ftrace_ops(&ftrace_ops_list, ops);
 
+	/* Always save the function, and reset at unregistering */
+	ops->saved_func = ops->func;
+
+	if (ops->flags & FTRACE_OPS_FL_PID && ftrace_pids_enabled())
+		ops->func = ftrace_pid_func;
+
 	ftrace_update_trampoline(ops);
 
 	if (ftrace_enabled)
@@ -463,15 +467,28 @@ static int __unregister_ftrace_function(
 	if (ftrace_enabled)
 		update_ftrace_function();
 
+	ops->func = ops->saved_func;
+
 	return 0;
 }
 
 static void ftrace_update_pid_func(void)
 {
+	bool enabled = ftrace_pids_enabled();
+	struct ftrace_ops *op;
+
 	/* Only do something if we are tracing something */
 	if (ftrace_trace_function == ftrace_stub)
 		return;
 
+	do_for_each_ftrace_op(op, ftrace_ops_list) {
+		if (op->flags & FTRACE_OPS_FL_PID) {
+			op->func = enabled ? ftrace_pid_func :
+				op->saved_func;
+			ftrace_update_trampoline(op);
+		}
+	} while_for_each_ftrace_op(op);
+
 	update_ftrace_function();
 }
 
@@ -1133,7 +1150,8 @@ static struct ftrace_ops global_ops = {
 	.local_hash.filter_hash		= EMPTY_HASH,
 	INIT_OPS_HASH(global_ops)
 	.flags				= FTRACE_OPS_FL_RECURSION_SAFE |
-					  FTRACE_OPS_FL_INITIALIZED,
+					  FTRACE_OPS_FL_INITIALIZED |
+					  FTRACE_OPS_FL_PID,
 };
 
 /*
@@ -5023,7 +5041,9 @@ static void ftrace_update_trampoline(str
 
 static struct ftrace_ops global_ops = {
 	.func			= ftrace_stub,
-	.flags			= FTRACE_OPS_FL_RECURSION_SAFE | FTRACE_OPS_FL_INITIALIZED,
+	.flags			= FTRACE_OPS_FL_RECURSION_SAFE |
+				  FTRACE_OPS_FL_INITIALIZED |
+				  FTRACE_OPS_FL_PID,
 };
 
 static int __init ftrace_nodyn_init(void)
@@ -5080,11 +5100,6 @@ void ftrace_init_array_ops(struct trace_
 		if (WARN_ON(tr->ops->func != ftrace_stub))
 			printk("ftrace ops had %pS for function\n",
 			       tr->ops->func);
-		/* Only the top level instance does pid tracing */
-		if (!list_empty(&ftrace_pids)) {
-			set_ftrace_pid_function(func);
-			func = ftrace_pid_func;
-		}
 	}
 	tr->ops->func = func;
 	tr->ops->private = tr;
@@ -5371,7 +5386,7 @@ static void *fpid_start(struct seq_file
 {
 	mutex_lock(&ftrace_lock);
 
-	if (list_empty(&ftrace_pids) && (!*pos))
+	if (!ftrace_pids_enabled() && (!*pos))
 		return (void *) 1;
 
 	return seq_list_start(&ftrace_pids, *pos);
@@ -5610,6 +5625,7 @@ static struct ftrace_ops graph_ops = {
 	.func			= ftrace_stub,
 	.flags			= FTRACE_OPS_FL_RECURSION_SAFE |
 				   FTRACE_OPS_FL_INITIALIZED |
+				   FTRACE_OPS_FL_PID |
 				   FTRACE_OPS_FL_STUB,
 #ifdef FTRACE_GRAPH_TRAMP_ADDR
 	.trampoline		= FTRACE_GRAPH_TRAMP_ADDR,
diff -druNp --no-dereference linux-libre-4.1-gnu/kernel/trace/trace_branch.c linux-libre-4.1.6-gnu/kernel/trace/trace_branch.c
--- linux-libre-4.1-gnu/kernel/trace/trace_branch.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/kernel/trace/trace_branch.c	2015-08-16 23:52:51.000000000 -0400
@@ -36,9 +36,12 @@ probe_likely_condition(struct ftrace_bra
 	struct trace_branch *entry;
 	struct ring_buffer *buffer;
 	unsigned long flags;
-	int cpu, pc;
+	int pc;
 	const char *p;
 
+	if (current->trace_recursion & TRACE_BRANCH_BIT)
+		return;
+
 	/*
 	 * I would love to save just the ftrace_likely_data pointer, but
 	 * this code can also be used by modules. Ugly things can happen
@@ -49,10 +52,10 @@ probe_likely_condition(struct ftrace_bra
 	if (unlikely(!tr))
 		return;
 
-	local_irq_save(flags);
-	cpu = raw_smp_processor_id();
-	data = per_cpu_ptr(tr->trace_buffer.data, cpu);
-	if (atomic_inc_return(&data->disabled) != 1)
+	raw_local_irq_save(flags);
+	current->trace_recursion |= TRACE_BRANCH_BIT;
+	data = this_cpu_ptr(tr->trace_buffer.data);
+	if (atomic_read(&data->disabled))
 		goto out;
 
 	pc = preempt_count();
@@ -81,8 +84,8 @@ probe_likely_condition(struct ftrace_bra
 		__buffer_unlock_commit(buffer, event);
 
  out:
-	atomic_dec(&data->disabled);
-	local_irq_restore(flags);
+	current->trace_recursion &= ~TRACE_BRANCH_BIT;
+	raw_local_irq_restore(flags);
 }
 
 static inline
diff -druNp --no-dereference linux-libre-4.1-gnu/kernel/trace/trace_events_filter.c linux-libre-4.1.6-gnu/kernel/trace/trace_events_filter.c
--- linux-libre-4.1-gnu/kernel/trace/trace_events_filter.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/kernel/trace/trace_events_filter.c	2015-08-16 23:52:51.000000000 -0400
@@ -1056,6 +1056,9 @@ static void parse_init(struct filter_par
 
 static char infix_next(struct filter_parse_state *ps)
 {
+	if (!ps->infix.cnt)
+		return 0;
+
 	ps->infix.cnt--;
 
 	return ps->infix.string[ps->infix.tail++];
@@ -1071,6 +1074,9 @@ static char infix_peek(struct filter_par
 
 static void infix_advance(struct filter_parse_state *ps)
 {
+	if (!ps->infix.cnt)
+		return;
+
 	ps->infix.cnt--;
 	ps->infix.tail++;
 }
@@ -1385,7 +1391,9 @@ static int check_preds(struct filter_par
 		if (elt->op != OP_NOT)
 			cnt--;
 		n_normal_preds++;
-		WARN_ON_ONCE(cnt < 0);
+		/* all ops should have operands */
+		if (cnt < 0)
+			break;
 	}
 
 	if (cnt != 1 || !n_normal_preds || n_logical_preds >= n_normal_preds) {
diff -druNp --no-dereference linux-libre-4.1-gnu/kernel/trace/trace.h linux-libre-4.1.6-gnu/kernel/trace/trace.h
--- linux-libre-4.1-gnu/kernel/trace/trace.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/kernel/trace/trace.h	2015-08-16 23:52:51.000000000 -0400
@@ -444,6 +444,7 @@ enum {
 
 	TRACE_CONTROL_BIT,
 
+	TRACE_BRANCH_BIT,
 /*
  * Abuse of the trace_recursion.
  * As we need a way to maintain state if we are tracing the function
@@ -1312,7 +1313,7 @@ void trace_event_init(void);
 void trace_event_enum_update(struct trace_enum_map **map, int len);
 #else
 static inline void __init trace_event_init(void) { }
-static inlin void trace_event_enum_update(struct trace_enum_map **map, int len) { }
+static inline void trace_event_enum_update(struct trace_enum_map **map, int len) { }
 #endif
 
 extern struct trace_iterator *tracepoint_print_iter;
diff -druNp --no-dereference linux-libre-4.1-gnu/lib/bitmap.c linux-libre-4.1.6-gnu/lib/bitmap.c
--- linux-libre-4.1-gnu/lib/bitmap.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/lib/bitmap.c	2015-08-16 23:52:51.000000000 -0400
@@ -506,12 +506,12 @@ static int __bitmap_parselist(const char
 	unsigned a, b;
 	int c, old_c, totaldigits;
 	const char __user __force *ubuf = (const char __user __force *)buf;
-	int exp_digit, in_range;
+	int at_start, in_range;
 
 	totaldigits = c = 0;
 	bitmap_zero(maskp, nmaskbits);
 	do {
-		exp_digit = 1;
+		at_start = 1;
 		in_range = 0;
 		a = b = 0;
 
@@ -540,11 +540,10 @@ static int __bitmap_parselist(const char
 				break;
 
 			if (c == '-') {
-				if (exp_digit || in_range)
+				if (at_start || in_range)
 					return -EINVAL;
 				b = 0;
 				in_range = 1;
-				exp_digit = 1;
 				continue;
 			}
 
@@ -554,16 +553,18 @@ static int __bitmap_parselist(const char
 			b = b * 10 + (c - '0');
 			if (!in_range)
 				a = b;
-			exp_digit = 0;
+			at_start = 0;
 			totaldigits++;
 		}
 		if (!(a <= b))
 			return -EINVAL;
 		if (b >= nmaskbits)
 			return -ERANGE;
-		while (a <= b) {
-			set_bit(a, maskp);
-			a++;
+		if (!at_start) {
+			while (a <= b) {
+				set_bit(a, maskp);
+				a++;
+			}
 		}
 	} while (buflen && c == ',');
 	return 0;
diff -druNp --no-dereference linux-libre-4.1-gnu/lib/dma-debug.c linux-libre-4.1.6-gnu/lib/dma-debug.c
--- linux-libre-4.1-gnu/lib/dma-debug.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/lib/dma-debug.c	2015-08-16 23:52:51.000000000 -0400
@@ -574,6 +574,9 @@ void debug_dma_assert_idle(struct page *
 	unsigned long flags;
 	phys_addr_t cln;
 
+	if (dma_debug_disabled())
+		return;
+
 	if (!page)
 		return;
 
diff -druNp --no-dereference linux-libre-4.1-gnu/Makefile linux-libre-4.1.6-gnu/Makefile
--- linux-libre-4.1-gnu/Makefile	2015-06-22 01:47:29.000000000 -0400
+++ linux-libre-4.1.6-gnu/Makefile	2015-08-17 08:18:18.000000000 -0400
@@ -1,8 +1,8 @@
 VERSION = 4
 PATCHLEVEL = 1
-SUBLEVEL = 0
+SUBLEVEL = 6
 EXTRAVERSION = -gnu
-NAME = Hurr durr I'ma sheep
+NAME = Series 4800
 
 # *DOCUMENTATION*
 # To see a list of typical targets execute "make help"
@@ -783,10 +783,11 @@ endif
 include scripts/Makefile.kasan
 include scripts/Makefile.extrawarn
 
-# Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments
-KBUILD_CPPFLAGS += $(KCPPFLAGS)
-KBUILD_AFLAGS += $(KAFLAGS)
-KBUILD_CFLAGS += $(KCFLAGS)
+# Add any arch overrides and user supplied CPPFLAGS, AFLAGS and CFLAGS as the
+# last assignments
+KBUILD_CPPFLAGS += $(ARCH_CPPFLAGS) $(KCPPFLAGS)
+KBUILD_AFLAGS   += $(ARCH_AFLAGS)   $(KAFLAGS)
+KBUILD_CFLAGS   += $(ARCH_CFLAGS)   $(KCFLAGS)
 
 # Use --build-id when available.
 LDFLAGS_BUILD_ID = $(patsubst -Wl$(comma)%,%,\
diff -druNp --no-dereference linux-libre-4.1-gnu/mm/hugetlb.c linux-libre-4.1.6-gnu/mm/hugetlb.c
--- linux-libre-4.1-gnu/mm/hugetlb.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/mm/hugetlb.c	2015-08-16 23:52:51.000000000 -0400
@@ -40,6 +40,11 @@ int hugepages_treat_as_movable;
 int hugetlb_max_hstate __read_mostly;
 unsigned int default_hstate_idx;
 struct hstate hstates[HUGE_MAX_HSTATE];
+/*
+ * Minimum page order among possible hugepage sizes, set to a proper value
+ * at boot time.
+ */
+static unsigned int minimum_order __read_mostly = UINT_MAX;
 
 __initdata LIST_HEAD(huge_boot_pages);
 
@@ -1188,19 +1193,13 @@ static void dissolve_free_huge_page(stru
  */
 void dissolve_free_huge_pages(unsigned long start_pfn, unsigned long end_pfn)
 {
-	unsigned int order = 8 * sizeof(void *);
 	unsigned long pfn;
-	struct hstate *h;
 
 	if (!hugepages_supported())
 		return;
 
-	/* Set scan step to minimum hugepage size */
-	for_each_hstate(h)
-		if (order > huge_page_order(h))
-			order = huge_page_order(h);
-	VM_BUG_ON(!IS_ALIGNED(start_pfn, 1 << order));
-	for (pfn = start_pfn; pfn < end_pfn; pfn += 1 << order)
+	VM_BUG_ON(!IS_ALIGNED(start_pfn, 1 << minimum_order));
+	for (pfn = start_pfn; pfn < end_pfn; pfn += 1 << minimum_order)
 		dissolve_free_huge_page(pfn_to_page(pfn));
 }
 
@@ -1627,10 +1626,14 @@ static void __init hugetlb_init_hstates(
 	struct hstate *h;
 
 	for_each_hstate(h) {
+		if (minimum_order > huge_page_order(h))
+			minimum_order = huge_page_order(h);
+
 		/* oversize hugepages were init'ed in early boot */
 		if (!hstate_is_gigantic(h))
 			hugetlb_hstate_alloc_pages(h);
 	}
+	VM_BUG_ON(minimum_order == UINT_MAX);
 }
 
 static char * __init memfmt(char *buf, unsigned long n)
diff -druNp --no-dereference linux-libre-4.1-gnu/mm/kmemleak.c linux-libre-4.1.6-gnu/mm/kmemleak.c
--- linux-libre-4.1-gnu/mm/kmemleak.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/mm/kmemleak.c	2015-08-16 23:52:51.000000000 -0400
@@ -195,6 +195,8 @@ static struct kmem_cache *scan_area_cach
 
 /* set if tracing memory operations is enabled */
 static int kmemleak_enabled;
+/* same as above but only for the kmemleak_free() callback */
+static int kmemleak_free_enabled;
 /* set in the late_initcall if there were no errors */
 static int kmemleak_initialized;
 /* enables or disables early logging of the memory operations */
@@ -907,12 +909,13 @@ EXPORT_SYMBOL_GPL(kmemleak_alloc);
  * kmemleak_alloc_percpu - register a newly allocated __percpu object
  * @ptr:	__percpu pointer to beginning of the object
  * @size:	size of the object
+ * @gfp:	flags used for kmemleak internal memory allocations
  *
  * This function is called from the kernel percpu allocator when a new object
- * (memory block) is allocated (alloc_percpu). It assumes GFP_KERNEL
- * allocation.
+ * (memory block) is allocated (alloc_percpu).
  */
-void __ref kmemleak_alloc_percpu(const void __percpu *ptr, size_t size)
+void __ref kmemleak_alloc_percpu(const void __percpu *ptr, size_t size,
+				 gfp_t gfp)
 {
 	unsigned int cpu;
 
@@ -925,7 +928,7 @@ void __ref kmemleak_alloc_percpu(const v
 	if (kmemleak_enabled && ptr && !IS_ERR(ptr))
 		for_each_possible_cpu(cpu)
 			create_object((unsigned long)per_cpu_ptr(ptr, cpu),
-				      size, 0, GFP_KERNEL);
+				      size, 0, gfp);
 	else if (kmemleak_early_log)
 		log_early(KMEMLEAK_ALLOC_PERCPU, ptr, size, 0);
 }
@@ -942,7 +945,7 @@ void __ref kmemleak_free(const void *ptr
 {
 	pr_debug("%s(0x%p)\n", __func__, ptr);
 
-	if (kmemleak_enabled && ptr && !IS_ERR(ptr))
+	if (kmemleak_free_enabled && ptr && !IS_ERR(ptr))
 		delete_object_full((unsigned long)ptr);
 	else if (kmemleak_early_log)
 		log_early(KMEMLEAK_FREE, ptr, 0, 0);
@@ -982,7 +985,7 @@ void __ref kmemleak_free_percpu(const vo
 
 	pr_debug("%s(0x%p)\n", __func__, ptr);
 
-	if (kmemleak_enabled && ptr && !IS_ERR(ptr))
+	if (kmemleak_free_enabled && ptr && !IS_ERR(ptr))
 		for_each_possible_cpu(cpu)
 			delete_object_full((unsigned long)per_cpu_ptr(ptr,
 								      cpu));
@@ -1750,6 +1753,13 @@ static void kmemleak_do_cleanup(struct w
 	mutex_lock(&scan_mutex);
 	stop_scan_thread();
 
+	/*
+	 * Once the scan thread has stopped, it is safe to no longer track
+	 * object freeing. Ordering of the scan thread stopping and the memory
+	 * accesses below is guaranteed by the kthread_stop() function.
+	 */
+	kmemleak_free_enabled = 0;
+
 	if (!kmemleak_found_leaks)
 		__kmemleak_do_cleanup();
 	else
@@ -1776,6 +1786,8 @@ static void kmemleak_disable(void)
 	/* check whether it is too early for a kernel thread */
 	if (kmemleak_initialized)
 		schedule_work(&cleanup_work);
+	else
+		kmemleak_free_enabled = 0;
 
 	pr_info("Kernel memory leak detector disabled\n");
 }
@@ -1840,8 +1852,10 @@ void __init kmemleak_init(void)
 	if (kmemleak_error) {
 		local_irq_restore(flags);
 		return;
-	} else
+	} else {
 		kmemleak_enabled = 1;
+		kmemleak_free_enabled = 1;
+	}
 	local_irq_restore(flags);
 
 	/*
diff -druNp --no-dereference linux-libre-4.1-gnu/mm/memory.c linux-libre-4.1.6-gnu/mm/memory.c
--- linux-libre-4.1-gnu/mm/memory.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/mm/memory.c	2015-08-16 23:52:51.000000000 -0400
@@ -2669,6 +2669,10 @@ static int do_anonymous_page(struct mm_s
 
 	pte_unmap(page_table);
 
+	/* File mapping without ->vm_ops ? */
+	if (vma->vm_flags & VM_SHARED)
+		return VM_FAULT_SIGBUS;
+
 	/* Check if we need to add a guard page to the stack */
 	if (check_stack_guard_page(vma, address) < 0)
 		return VM_FAULT_SIGSEGV;
@@ -3097,6 +3101,9 @@ static int do_fault(struct mm_struct *mm
 			- vma->vm_start) >> PAGE_SHIFT) + vma->vm_pgoff;
 
 	pte_unmap(page_table);
+	/* The VMA was not fully populated on mmap() or missing VM_DONTEXPAND */
+	if (!vma->vm_ops->fault)
+		return VM_FAULT_SIGBUS;
 	if (!(flags & FAULT_FLAG_WRITE))
 		return do_read_fault(mm, vma, address, pmd, pgoff, flags,
 				orig_pte);
@@ -3242,13 +3249,12 @@ static int handle_pte_fault(struct mm_st
 	barrier();
 	if (!pte_present(entry)) {
 		if (pte_none(entry)) {
-			if (vma->vm_ops) {
-				if (likely(vma->vm_ops->fault))
-					return do_fault(mm, vma, address, pte,
-							pmd, flags, entry);
-			}
-			return do_anonymous_page(mm, vma, address,
-						 pte, pmd, flags);
+			if (vma->vm_ops)
+				return do_fault(mm, vma, address, pte, pmd,
+						flags, entry);
+
+			return do_anonymous_page(mm, vma, address, pte, pmd,
+					flags);
 		}
 		return do_swap_page(mm, vma, address,
 					pte, pmd, flags, entry);
diff -druNp --no-dereference linux-libre-4.1-gnu/mm/mempolicy.c linux-libre-4.1.6-gnu/mm/mempolicy.c
--- linux-libre-4.1-gnu/mm/mempolicy.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/mm/mempolicy.c	2015-08-16 23:52:51.000000000 -0400
@@ -1972,35 +1972,41 @@ retry_cpuset:
 	pol = get_vma_policy(vma, addr);
 	cpuset_mems_cookie = read_mems_allowed_begin();
 
-	if (unlikely(IS_ENABLED(CONFIG_TRANSPARENT_HUGEPAGE) && hugepage &&
-					pol->mode != MPOL_INTERLEAVE)) {
+	if (pol->mode == MPOL_INTERLEAVE) {
+		unsigned nid;
+
+		nid = interleave_nid(pol, vma, addr, PAGE_SHIFT + order);
+		mpol_cond_put(pol);
+		page = alloc_page_interleave(gfp, order, nid);
+		goto out;
+	}
+
+	if (unlikely(IS_ENABLED(CONFIG_TRANSPARENT_HUGEPAGE) && hugepage)) {
+		int hpage_node = node;
+
 		/*
 		 * For hugepage allocation and non-interleave policy which
-		 * allows the current node, we only try to allocate from the
-		 * current node and don't fall back to other nodes, as the
-		 * cost of remote accesses would likely offset THP benefits.
+		 * allows the current node (or other explicitly preferred
+		 * node) we only try to allocate from the current/preferred
+		 * node and don't fall back to other nodes, as the cost of
+		 * remote accesses would likely offset THP benefits.
 		 *
 		 * If the policy is interleave, or does not allow the current
 		 * node in its nodemask, we allocate the standard way.
 		 */
+		if (pol->mode == MPOL_PREFERRED &&
+						!(pol->flags & MPOL_F_LOCAL))
+			hpage_node = pol->v.preferred_node;
+
 		nmask = policy_nodemask(gfp, pol);
-		if (!nmask || node_isset(node, *nmask)) {
+		if (!nmask || node_isset(hpage_node, *nmask)) {
 			mpol_cond_put(pol);
-			page = alloc_pages_exact_node(node,
+			page = alloc_pages_exact_node(hpage_node,
 						gfp | __GFP_THISNODE, order);
 			goto out;
 		}
 	}
 
-	if (pol->mode == MPOL_INTERLEAVE) {
-		unsigned nid;
-
-		nid = interleave_nid(pol, vma, addr, PAGE_SHIFT + order);
-		mpol_cond_put(pol);
-		page = alloc_page_interleave(gfp, order, nid);
-		goto out;
-	}
-
 	nmask = policy_nodemask(gfp, pol);
 	zl = policy_zonelist(gfp, pol, node);
 	mpol_cond_put(pol);
diff -druNp --no-dereference linux-libre-4.1-gnu/mm/percpu.c linux-libre-4.1.6-gnu/mm/percpu.c
--- linux-libre-4.1-gnu/mm/percpu.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/mm/percpu.c	2015-08-16 23:52:51.000000000 -0400
@@ -1030,7 +1030,7 @@ area_found:
 		memset((void *)pcpu_chunk_addr(chunk, cpu, 0) + off, 0, size);
 
 	ptr = __addr_to_pcpu_ptr(chunk->base_addr + off);
-	kmemleak_alloc_percpu(ptr, size);
+	kmemleak_alloc_percpu(ptr, size, gfp);
 	return ptr;
 
 fail_unlock:
diff -druNp --no-dereference linux-libre-4.1-gnu/mm/vmscan.c linux-libre-4.1.6-gnu/mm/vmscan.c
--- linux-libre-4.1-gnu/mm/vmscan.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/mm/vmscan.c	2015-08-16 23:52:51.000000000 -0400
@@ -937,21 +937,17 @@ static unsigned long shrink_page_list(st
 		 *
 		 * 2) Global reclaim encounters a page, memcg encounters a
 		 *    page that is not marked for immediate reclaim or
-		 *    the caller does not have __GFP_IO. In this case mark
+		 *    the caller does not have __GFP_FS (or __GFP_IO if it's
+		 *    simply going to swap, not to fs). In this case mark
 		 *    the page for immediate reclaim and continue scanning.
 		 *
-		 *    __GFP_IO is checked  because a loop driver thread might
+		 *    Require may_enter_fs because we would wait on fs, which
+		 *    may not have submitted IO yet. And the loop driver might
 		 *    enter reclaim, and deadlock if it waits on a page for
 		 *    which it is needed to do the write (loop masks off
 		 *    __GFP_IO|__GFP_FS for this reason); but more thought
 		 *    would probably show more reasons.
 		 *
-		 *    Don't require __GFP_FS, since we're not going into the
-		 *    FS, just waiting on its writeback completion. Worryingly,
-		 *    ext4 gfs2 and xfs allocate pages with
-		 *    grab_cache_page_write_begin(,,AOP_FLAG_NOFS), so testing
-		 *    may_enter_fs here is liable to OOM on them.
-		 *
 		 * 3) memcg encounters a page that is not already marked
 		 *    PageReclaim. memcg does not have any dirty pages
 		 *    throttling so we could easily OOM just because too many
@@ -968,7 +964,7 @@ static unsigned long shrink_page_list(st
 
 			/* Case 2 above */
 			} else if (global_reclaim(sc) ||
-			    !PageReclaim(page) || !(sc->gfp_mask & __GFP_IO)) {
+			    !PageReclaim(page) || !may_enter_fs) {
 				/*
 				 * This is slightly racy - end_page_writeback()
 				 * might have just cleared PageReclaim, then
diff -druNp --no-dereference linux-libre-4.1-gnu/net/9p/client.c linux-libre-4.1.6-gnu/net/9p/client.c
--- linux-libre-4.1-gnu/net/9p/client.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/net/9p/client.c	2015-08-16 23:52:51.000000000 -0400
@@ -843,7 +843,8 @@ static struct p9_req_t *p9_client_zc_rpc
 	if (err < 0) {
 		if (err == -EIO)
 			c->status = Disconnected;
-		goto reterr;
+		if (err != -ERESTARTSYS)
+			goto reterr;
 	}
 	if (req->status == REQ_STATUS_ERROR) {
 		p9_debug(P9_DEBUG_ERROR, "req_status error %d\n", req->t_err);
@@ -1647,6 +1648,7 @@ p9_client_write(struct p9_fid *fid, u64
 		if (*err) {
 			trace_9p_protocol_dump(clnt, req->rc);
 			p9_free_req(clnt, req);
+			break;
 		}
 
 		p9_debug(P9_DEBUG_9P, "<<< RWRITE count %d\n", count);
diff -druNp --no-dereference linux-libre-4.1-gnu/net/bluetooth/hci_sock.c linux-libre-4.1.6-gnu/net/bluetooth/hci_sock.c
--- linux-libre-4.1-gnu/net/bluetooth/hci_sock.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/net/bluetooth/hci_sock.c	2015-08-16 23:52:51.000000000 -0400
@@ -741,10 +741,11 @@ static int hci_sock_bind(struct socket *
 			goto done;
 		}
 
-		if (test_bit(HCI_UP, &hdev->flags) ||
-		    test_bit(HCI_INIT, &hdev->flags) ||
+		if (test_bit(HCI_INIT, &hdev->flags) ||
 		    hci_dev_test_flag(hdev, HCI_SETUP) ||
-		    hci_dev_test_flag(hdev, HCI_CONFIG)) {
+		    hci_dev_test_flag(hdev, HCI_CONFIG) ||
+		    (!hci_dev_test_flag(hdev, HCI_AUTO_OFF) &&
+		     test_bit(HCI_UP, &hdev->flags))) {
 			err = -EBUSY;
 			hci_dev_put(hdev);
 			goto done;
@@ -760,10 +761,21 @@ static int hci_sock_bind(struct socket *
 
 		err = hci_dev_open(hdev->id);
 		if (err) {
-			hci_dev_clear_flag(hdev, HCI_USER_CHANNEL);
-			mgmt_index_added(hdev);
-			hci_dev_put(hdev);
-			goto done;
+			if (err == -EALREADY) {
+				/* In case the transport is already up and
+				 * running, clear the error here.
+				 *
+				 * This can happen when opening an user
+				 * channel and HCI_AUTO_OFF grace period
+				 * is still active.
+				 */
+				err = 0;
+			} else {
+				hci_dev_clear_flag(hdev, HCI_USER_CHANNEL);
+				mgmt_index_added(hdev);
+				hci_dev_put(hdev);
+				goto done;
+			}
 		}
 
 		atomic_inc(&hdev->promisc);
diff -druNp --no-dereference linux-libre-4.1-gnu/net/bluetooth/smp.c linux-libre-4.1.6-gnu/net/bluetooth/smp.c
--- linux-libre-4.1-gnu/net/bluetooth/smp.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/net/bluetooth/smp.c	2015-08-16 23:52:51.000000000 -0400
@@ -2295,6 +2295,10 @@ int smp_conn_security(struct hci_conn *h
 		return 1;
 
 	chan = conn->smp;
+	if (!chan) {
+		BT_ERR("SMP security requested but not available");
+		return 1;
+	}
 
 	if (!hci_dev_test_flag(hcon->hdev, HCI_LE_ENABLED))
 		return 1;
diff -druNp --no-dereference linux-libre-4.1-gnu/net/bridge/br_ioctl.c linux-libre-4.1.6-gnu/net/bridge/br_ioctl.c
--- linux-libre-4.1-gnu/net/bridge/br_ioctl.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/net/bridge/br_ioctl.c	2015-08-16 23:52:51.000000000 -0400
@@ -247,9 +247,7 @@ static int old_dev_ioctl(struct net_devi
 		if (!ns_capable(dev_net(dev)->user_ns, CAP_NET_ADMIN))
 			return -EPERM;
 
-		spin_lock_bh(&br->lock);
 		br_stp_set_bridge_priority(br, args[1]);
-		spin_unlock_bh(&br->lock);
 		return 0;
 
 	case BRCTL_SET_PORT_PRIORITY:
diff -druNp --no-dereference linux-libre-4.1-gnu/net/bridge/br_stp_if.c linux-libre-4.1.6-gnu/net/bridge/br_stp_if.c
--- linux-libre-4.1-gnu/net/bridge/br_stp_if.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/net/bridge/br_stp_if.c	2015-08-16 23:52:51.000000000 -0400
@@ -243,12 +243,13 @@ bool br_stp_recalculate_bridge_id(struct
 	return true;
 }
 
-/* called under bridge lock */
+/* Acquires and releases bridge lock */
 void br_stp_set_bridge_priority(struct net_bridge *br, u16 newprio)
 {
 	struct net_bridge_port *p;
 	int wasroot;
 
+	spin_lock_bh(&br->lock);
 	wasroot = br_is_root_bridge(br);
 
 	list_for_each_entry(p, &br->port_list, list) {
@@ -266,6 +267,7 @@ void br_stp_set_bridge_priority(struct n
 	br_port_state_selection(br);
 	if (br_is_root_bridge(br) && !wasroot)
 		br_become_root_bridge(br);
+	spin_unlock_bh(&br->lock);
 }
 
 /* called under bridge lock */
diff -druNp --no-dereference linux-libre-4.1-gnu/net/can/af_can.c linux-libre-4.1.6-gnu/net/can/af_can.c
--- linux-libre-4.1-gnu/net/can/af_can.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/net/can/af_can.c	2015-08-16 23:52:51.000000000 -0400
@@ -89,6 +89,8 @@ struct timer_list can_stattimer;   /* ti
 struct s_stats    can_stats;       /* packet statistics */
 struct s_pstats   can_pstats;      /* receive list statistics */
 
+static atomic_t skbcounter = ATOMIC_INIT(0);
+
 /*
  * af_can socket functions
  */
@@ -679,6 +681,10 @@ static void can_receive(struct sk_buff *
 	can_stats.rx_frames++;
 	can_stats.rx_frames_delta++;
 
+	/* create non-zero unique skb identifier together with *skb */
+	while (!(can_skb_prv(skb)->skbcnt))
+		can_skb_prv(skb)->skbcnt = atomic_inc_return(&skbcounter);
+
 	rcu_read_lock();
 
 	/* deliver the packet to sockets listening on all devices */
diff -druNp --no-dereference linux-libre-4.1-gnu/net/can/bcm.c linux-libre-4.1.6-gnu/net/can/bcm.c
--- linux-libre-4.1-gnu/net/can/bcm.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/net/can/bcm.c	2015-08-16 23:52:51.000000000 -0400
@@ -261,6 +261,7 @@ static void bcm_can_tx(struct bcm_op *op
 
 	can_skb_reserve(skb);
 	can_skb_prv(skb)->ifindex = dev->ifindex;
+	can_skb_prv(skb)->skbcnt = 0;
 
 	memcpy(skb_put(skb, CFSIZ), cf, CFSIZ);
 
@@ -1217,6 +1218,7 @@ static int bcm_tx_send(struct msghdr *ms
 	}
 
 	can_skb_prv(skb)->ifindex = dev->ifindex;
+	can_skb_prv(skb)->skbcnt = 0;
 	skb->dev = dev;
 	can_skb_set_owner(skb, sk);
 	err = can_send(skb, 1); /* send with loopback */
diff -druNp --no-dereference linux-libre-4.1-gnu/net/can/raw.c linux-libre-4.1.6-gnu/net/can/raw.c
--- linux-libre-4.1-gnu/net/can/raw.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/net/can/raw.c	2015-08-16 23:52:51.000000000 -0400
@@ -75,7 +75,7 @@ MODULE_ALIAS("can-proto-1");
  */
 
 struct uniqframe {
-	ktime_t tstamp;
+	int skbcnt;
 	const struct sk_buff *skb;
 	unsigned int join_rx_count;
 };
@@ -133,7 +133,7 @@ static void raw_rcv(struct sk_buff *oskb
 
 	/* eliminate multiple filter matches for the same skb */
 	if (this_cpu_ptr(ro->uniq)->skb == oskb &&
-	    ktime_equal(this_cpu_ptr(ro->uniq)->tstamp, oskb->tstamp)) {
+	    this_cpu_ptr(ro->uniq)->skbcnt == can_skb_prv(oskb)->skbcnt) {
 		if (ro->join_filters) {
 			this_cpu_inc(ro->uniq->join_rx_count);
 			/* drop frame until all enabled filters matched */
@@ -144,7 +144,7 @@ static void raw_rcv(struct sk_buff *oskb
 		}
 	} else {
 		this_cpu_ptr(ro->uniq)->skb = oskb;
-		this_cpu_ptr(ro->uniq)->tstamp = oskb->tstamp;
+		this_cpu_ptr(ro->uniq)->skbcnt = can_skb_prv(oskb)->skbcnt;
 		this_cpu_ptr(ro->uniq)->join_rx_count = 1;
 		/* drop first frame to check all enabled filters? */
 		if (ro->join_filters && ro->count > 1)
@@ -749,6 +749,7 @@ static int raw_sendmsg(struct socket *so
 
 	can_skb_reserve(skb);
 	can_skb_prv(skb)->ifindex = dev->ifindex;
+	can_skb_prv(skb)->skbcnt = 0;
 
 	err = memcpy_from_msg(skb_put(skb, size), msg, size);
 	if (err < 0)
diff -druNp --no-dereference linux-libre-4.1-gnu/net/ceph/osdmap.c linux-libre-4.1.6-gnu/net/ceph/osdmap.c
--- linux-libre-4.1-gnu/net/ceph/osdmap.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/net/ceph/osdmap.c	2015-08-16 23:52:51.000000000 -0400
@@ -89,7 +89,7 @@ static int crush_decode_tree_bucket(void
 {
 	int j;
 	dout("crush_decode_tree_bucket %p to %p\n", *p, end);
-	ceph_decode_32_safe(p, end, b->num_nodes, bad);
+	ceph_decode_8_safe(p, end, b->num_nodes, bad);
 	b->node_weights = kcalloc(b->num_nodes, sizeof(u32), GFP_NOFS);
 	if (b->node_weights == NULL)
 		return -ENOMEM;
diff -druNp --no-dereference linux-libre-4.1-gnu/net/core/neighbour.c linux-libre-4.1.6-gnu/net/core/neighbour.c
--- linux-libre-4.1-gnu/net/core/neighbour.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/net/core/neighbour.c	2015-08-16 23:52:51.000000000 -0400
@@ -957,6 +957,8 @@ int __neigh_event_send(struct neighbour
 	rc = 0;
 	if (neigh->nud_state & (NUD_CONNECTED | NUD_DELAY | NUD_PROBE))
 		goto out_unlock_bh;
+	if (neigh->dead)
+		goto out_dead;
 
 	if (!(neigh->nud_state & (NUD_STALE | NUD_INCOMPLETE))) {
 		if (NEIGH_VAR(neigh->parms, MCAST_PROBES) +
@@ -1013,6 +1015,13 @@ out_unlock_bh:
 		write_unlock(&neigh->lock);
 	local_bh_enable();
 	return rc;
+
+out_dead:
+	if (neigh->nud_state & NUD_STALE)
+		goto out_unlock_bh;
+	write_unlock_bh(&neigh->lock);
+	kfree_skb(skb);
+	return 1;
 }
 EXPORT_SYMBOL(__neigh_event_send);
 
@@ -1076,6 +1085,8 @@ int neigh_update(struct neighbour *neigh
 	if (!(flags & NEIGH_UPDATE_F_ADMIN) &&
 	    (old & (NUD_NOARP | NUD_PERMANENT)))
 		goto out;
+	if (neigh->dead)
+		goto out;
 
 	if (!(new & NUD_VALID)) {
 		neigh_del_timer(neigh);
@@ -1225,6 +1236,8 @@ EXPORT_SYMBOL(neigh_update);
  */
 void __neigh_set_probe_once(struct neighbour *neigh)
 {
+	if (neigh->dead)
+		return;
 	neigh->updated = jiffies;
 	if (!(neigh->nud_state & NUD_FAILED))
 		return;
diff -druNp --no-dereference linux-libre-4.1-gnu/net/ieee802154/socket.c linux-libre-4.1.6-gnu/net/ieee802154/socket.c
--- linux-libre-4.1-gnu/net/ieee802154/socket.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/net/ieee802154/socket.c	2015-08-16 23:52:51.000000000 -0400
@@ -739,6 +739,12 @@ static int dgram_recvmsg(struct sock *sk
 	sock_recv_ts_and_drops(msg, sk, skb);
 
 	if (saddr) {
+		/* Clear the implicit padding in struct sockaddr_ieee802154
+		 * (16 bits between 'family' and 'addr') and in struct
+		 * ieee802154_addr_sa (16 bits at the end of the structure).
+		 */
+		memset(saddr, 0, sizeof(*saddr));
+
 		saddr->family = AF_IEEE802154;
 		ieee802154_addr_to_sa(&saddr->addr, &mac_cb(skb)->source);
 		*addr_len = sizeof(*saddr);
diff -druNp --no-dereference linux-libre-4.1-gnu/net/ipv4/af_inet.c linux-libre-4.1.6-gnu/net/ipv4/af_inet.c
--- linux-libre-4.1-gnu/net/ipv4/af_inet.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/net/ipv4/af_inet.c	2015-08-16 23:52:51.000000000 -0400
@@ -228,6 +228,8 @@ int inet_listen(struct socket *sock, int
 				err = 0;
 			if (err)
 				goto out;
+
+			tcp_fastopen_init_key_once(true);
 		}
 		err = inet_csk_listen_start(sk, backlog);
 		if (err)
diff -druNp --no-dereference linux-libre-4.1-gnu/net/ipv4/ip_sockglue.c linux-libre-4.1.6-gnu/net/ipv4/ip_sockglue.c
--- linux-libre-4.1-gnu/net/ipv4/ip_sockglue.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/net/ipv4/ip_sockglue.c	2015-08-16 23:52:51.000000000 -0400
@@ -432,6 +432,15 @@ void ip_local_error(struct sock *sk, int
 		kfree_skb(skb);
 }
 
+/* For some errors we have valid addr_offset even with zero payload and
+ * zero port. Also, addr_offset should be supported if port is set.
+ */
+static inline bool ipv4_datagram_support_addr(struct sock_exterr_skb *serr)
+{
+	return serr->ee.ee_origin == SO_EE_ORIGIN_ICMP ||
+	       serr->ee.ee_origin == SO_EE_ORIGIN_LOCAL || serr->port;
+}
+
 /* IPv4 supports cmsg on all imcp errors and some timestamps
  *
  * Timestamp code paths do not initialize the fields expected by cmsg:
@@ -498,7 +507,7 @@ int ip_recv_error(struct sock *sk, struc
 
 	serr = SKB_EXT_ERR(skb);
 
-	if (sin && serr->port) {
+	if (sin && ipv4_datagram_support_addr(serr)) {
 		sin->sin_family = AF_INET;
 		sin->sin_addr.s_addr = *(__be32 *)(skb_network_header(skb) +
 						   serr->addr_offset);
diff -druNp --no-dereference linux-libre-4.1-gnu/net/ipv4/tcp.c linux-libre-4.1.6-gnu/net/ipv4/tcp.c
--- linux-libre-4.1-gnu/net/ipv4/tcp.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/net/ipv4/tcp.c	2015-08-16 23:52:51.000000000 -0400
@@ -2545,10 +2545,13 @@ static int do_tcp_setsockopt(struct sock
 
 	case TCP_FASTOPEN:
 		if (val >= 0 && ((1 << sk->sk_state) & (TCPF_CLOSE |
-		    TCPF_LISTEN)))
+		    TCPF_LISTEN))) {
+			tcp_fastopen_init_key_once(true);
+
 			err = fastopen_init_queue(sk, val);
-		else
+		} else {
 			err = -EINVAL;
+		}
 		break;
 	case TCP_TIMESTAMP:
 		if (!tp->repair)
diff -druNp --no-dereference linux-libre-4.1-gnu/net/ipv4/tcp_fastopen.c linux-libre-4.1.6-gnu/net/ipv4/tcp_fastopen.c
--- linux-libre-4.1-gnu/net/ipv4/tcp_fastopen.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/net/ipv4/tcp_fastopen.c	2015-08-16 23:52:51.000000000 -0400
@@ -78,8 +78,6 @@ static bool __tcp_fastopen_cookie_gen(co
 	struct tcp_fastopen_context *ctx;
 	bool ok = false;
 
-	tcp_fastopen_init_key_once(true);
-
 	rcu_read_lock();
 	ctx = rcu_dereference(tcp_fastopen_ctx);
 	if (ctx) {
diff -druNp --no-dereference linux-libre-4.1-gnu/net/ipv6/datagram.c linux-libre-4.1.6-gnu/net/ipv6/datagram.c
--- linux-libre-4.1-gnu/net/ipv6/datagram.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/net/ipv6/datagram.c	2015-08-16 23:52:51.000000000 -0400
@@ -325,6 +325,16 @@ void ipv6_local_rxpmtu(struct sock *sk,
 	kfree_skb(skb);
 }
 
+/* For some errors we have valid addr_offset even with zero payload and
+ * zero port. Also, addr_offset should be supported if port is set.
+ */
+static inline bool ipv6_datagram_support_addr(struct sock_exterr_skb *serr)
+{
+	return serr->ee.ee_origin == SO_EE_ORIGIN_ICMP6 ||
+	       serr->ee.ee_origin == SO_EE_ORIGIN_ICMP ||
+	       serr->ee.ee_origin == SO_EE_ORIGIN_LOCAL || serr->port;
+}
+
 /* IPv6 supports cmsg on all origins aside from SO_EE_ORIGIN_LOCAL.
  *
  * At one point, excluding local errors was a quick test to identify icmp/icmp6
@@ -389,7 +399,7 @@ int ipv6_recv_error(struct sock *sk, str
 
 	serr = SKB_EXT_ERR(skb);
 
-	if (sin && serr->port) {
+	if (sin && ipv6_datagram_support_addr(serr)) {
 		const unsigned char *nh = skb_network_header(skb);
 		sin->sin6_family = AF_INET6;
 		sin->sin6_flowinfo = 0;
diff -druNp --no-dereference linux-libre-4.1-gnu/net/mac80211/cfg.c linux-libre-4.1.6-gnu/net/mac80211/cfg.c
--- linux-libre-4.1-gnu/net/mac80211/cfg.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/net/mac80211/cfg.c	2015-08-16 23:52:51.000000000 -0400
@@ -3356,6 +3356,7 @@ static int ieee80211_mgmt_tx(struct wiph
 	/* Update CSA counters */
 	if (sdata->vif.csa_active &&
 	    (sdata->vif.type == NL80211_IFTYPE_AP ||
+	     sdata->vif.type == NL80211_IFTYPE_MESH_POINT ||
 	     sdata->vif.type == NL80211_IFTYPE_ADHOC) &&
 	    params->n_csa_offsets) {
 		int i;
diff -druNp --no-dereference linux-libre-4.1-gnu/net/mac80211/debugfs_netdev.c linux-libre-4.1.6-gnu/net/mac80211/debugfs_netdev.c
--- linux-libre-4.1-gnu/net/mac80211/debugfs_netdev.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/net/mac80211/debugfs_netdev.c	2015-08-16 23:52:51.000000000 -0400
@@ -723,6 +723,7 @@ void ieee80211_debugfs_remove_netdev(str
 
 	debugfs_remove_recursive(sdata->vif.debugfs_dir);
 	sdata->vif.debugfs_dir = NULL;
+	sdata->debugfs.subdir_stations = NULL;
 }
 
 void ieee80211_debugfs_rename_netdev(struct ieee80211_sub_if_data *sdata)
diff -druNp --no-dereference linux-libre-4.1-gnu/net/mac80211/ibss.c linux-libre-4.1.6-gnu/net/mac80211/ibss.c
--- linux-libre-4.1-gnu/net/mac80211/ibss.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/net/mac80211/ibss.c	2015-08-16 23:52:51.000000000 -0400
@@ -146,6 +146,7 @@ ieee80211_ibss_build_presp(struct ieee80
 				csa_settings->chandef.chan->center_freq);
 		presp->csa_counter_offsets[0] = (pos - presp->head);
 		*pos++ = csa_settings->count;
+		presp->csa_current_counter = csa_settings->count;
 	}
 
 	/* put the remaining rates in WLAN_EID_EXT_SUPP_RATES */
diff -druNp --no-dereference linux-libre-4.1-gnu/net/mac80211/key.c linux-libre-4.1.6-gnu/net/mac80211/key.c
--- linux-libre-4.1-gnu/net/mac80211/key.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/net/mac80211/key.c	2015-08-16 23:52:51.000000000 -0400
@@ -66,12 +66,15 @@ update_vlan_tailroom_need_count(struct i
 	if (sdata->vif.type != NL80211_IFTYPE_AP)
 		return;
 
-	mutex_lock(&sdata->local->mtx);
+	/* crypto_tx_tailroom_needed_cnt is protected by this */
+	assert_key_lock(sdata->local);
 
-	list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
+	rcu_read_lock();
+
+	list_for_each_entry_rcu(vlan, &sdata->u.ap.vlans, u.vlan.list)
 		vlan->crypto_tx_tailroom_needed_cnt += delta;
 
-	mutex_unlock(&sdata->local->mtx);
+	rcu_read_unlock();
 }
 
 static void increment_tailroom_need_count(struct ieee80211_sub_if_data *sdata)
@@ -95,6 +98,8 @@ static void increment_tailroom_need_coun
 	 * http://mid.gmane.org/1308590980.4322.19.camel@jlt3.sipsolutions.net
 	 */
 
+	assert_key_lock(sdata->local);
+
 	update_vlan_tailroom_need_count(sdata, 1);
 
 	if (!sdata->crypto_tx_tailroom_needed_cnt++) {
@@ -109,6 +114,8 @@ static void increment_tailroom_need_coun
 static void decrease_tailroom_need_count(struct ieee80211_sub_if_data *sdata,
 					 int delta)
 {
+	assert_key_lock(sdata->local);
+
 	WARN_ON_ONCE(sdata->crypto_tx_tailroom_needed_cnt < delta);
 
 	update_vlan_tailroom_need_count(sdata, -delta);
diff -druNp --no-dereference linux-libre-4.1-gnu/net/mac80211/main.c linux-libre-4.1.6-gnu/net/mac80211/main.c
--- linux-libre-4.1-gnu/net/mac80211/main.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/net/mac80211/main.c	2015-08-16 23:52:51.000000000 -0400
@@ -249,6 +249,7 @@ static void ieee80211_restart_work(struc
 {
 	struct ieee80211_local *local =
 		container_of(work, struct ieee80211_local, restart_work);
+	struct ieee80211_sub_if_data *sdata;
 
 	/* wait for scan work complete */
 	flush_workqueue(local->workqueue);
@@ -257,6 +258,8 @@ static void ieee80211_restart_work(struc
 	     "%s called with hardware scan in progress\n", __func__);
 
 	rtnl_lock();
+	list_for_each_entry(sdata, &local->interfaces, list)
+		flush_delayed_work(&sdata->dec_tailroom_needed_wk);
 	ieee80211_scan_cancel(local);
 	ieee80211_reconfig(local);
 	rtnl_unlock();
diff -druNp --no-dereference linux-libre-4.1-gnu/net/mac80211/mesh.c linux-libre-4.1.6-gnu/net/mac80211/mesh.c
--- linux-libre-4.1-gnu/net/mac80211/mesh.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/net/mac80211/mesh.c	2015-08-16 23:52:51.000000000 -0400
@@ -680,6 +680,7 @@ ieee80211_mesh_build_beacon(struct ieee8
 		*pos++ = 0x0;
 		*pos++ = ieee80211_frequency_to_channel(
 				csa->settings.chandef.chan->center_freq);
+		bcn->csa_current_counter = csa->settings.count;
 		bcn->csa_counter_offsets[0] = hdr_len + 6;
 		*pos++ = csa->settings.count;
 		*pos++ = WLAN_EID_CHAN_SWITCH_PARAM;
diff -druNp --no-dereference linux-libre-4.1-gnu/net/packet/af_packet.c linux-libre-4.1.6-gnu/net/packet/af_packet.c
--- linux-libre-4.1-gnu/net/packet/af_packet.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/net/packet/af_packet.c	2015-08-16 23:52:51.000000000 -0400
@@ -1272,16 +1272,6 @@ static void packet_sock_destruct(struct
 	sk_refcnt_debug_dec(sk);
 }
 
-static int fanout_rr_next(struct packet_fanout *f, unsigned int num)
-{
-	int x = atomic_read(&f->rr_cur) + 1;
-
-	if (x >= num)
-		x = 0;
-
-	return x;
-}
-
 static unsigned int fanout_demux_hash(struct packet_fanout *f,
 				      struct sk_buff *skb,
 				      unsigned int num)
@@ -1293,13 +1283,9 @@ static unsigned int fanout_demux_lb(stru
 				    struct sk_buff *skb,
 				    unsigned int num)
 {
-	int cur, old;
+	unsigned int val = atomic_inc_return(&f->rr_cur);
 
-	cur = atomic_read(&f->rr_cur);
-	while ((old = atomic_cmpxchg(&f->rr_cur, cur,
-				     fanout_rr_next(f, num))) != cur)
-		cur = old;
-	return cur;
+	return val % num;
 }
 
 static unsigned int fanout_demux_cpu(struct packet_fanout *f,
@@ -1353,7 +1339,7 @@ static int packet_rcv_fanout(struct sk_b
 			     struct packet_type *pt, struct net_device *orig_dev)
 {
 	struct packet_fanout *f = pt->af_packet_priv;
-	unsigned int num = f->num_members;
+	unsigned int num = READ_ONCE(f->num_members);
 	struct packet_sock *po;
 	unsigned int idx;
 
diff -druNp --no-dereference linux-libre-4.1-gnu/net/rds/ib_rdma.c linux-libre-4.1.6-gnu/net/rds/ib_rdma.c
--- linux-libre-4.1-gnu/net/rds/ib_rdma.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/net/rds/ib_rdma.c	2015-08-16 23:52:51.000000000 -0400
@@ -759,8 +759,10 @@ void *rds_ib_get_mr(struct scatterlist *
 	}
 
 	ibmr = rds_ib_alloc_fmr(rds_ibdev);
-	if (IS_ERR(ibmr))
+	if (IS_ERR(ibmr)) {
+		rds_ib_dev_put(rds_ibdev);
 		return ibmr;
+	}
 
 	ret = rds_ib_map_fmr(rds_ibdev, ibmr, sg, nents);
 	if (ret == 0)
diff -druNp --no-dereference linux-libre-4.1-gnu/net/sctp/output.c linux-libre-4.1.6-gnu/net/sctp/output.c
--- linux-libre-4.1-gnu/net/sctp/output.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/net/sctp/output.c	2015-08-16 23:52:51.000000000 -0400
@@ -599,7 +599,9 @@ out:
 	return err;
 no_route:
 	kfree_skb(nskb);
-	IP_INC_STATS(sock_net(asoc->base.sk), IPSTATS_MIB_OUTNOROUTES);
+
+	if (asoc)
+		IP_INC_STATS(sock_net(asoc->base.sk), IPSTATS_MIB_OUTNOROUTES);
 
 	/* FIXME: Returning the 'err' will effect all the associations
 	 * associated with a socket, although only one of the paths of the
diff -druNp --no-dereference linux-libre-4.1-gnu/net/sctp/socket.c linux-libre-4.1.6-gnu/net/sctp/socket.c
--- linux-libre-4.1-gnu/net/sctp/socket.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/net/sctp/socket.c	2015-08-16 23:52:51.000000000 -0400
@@ -1528,8 +1528,10 @@ static void sctp_close(struct sock *sk,
 
 	/* Supposedly, no process has access to the socket, but
 	 * the net layers still may.
+	 * Also, sctp_destroy_sock() needs to be called with addr_wq_lock
+	 * held and that should be grabbed before socket lock.
 	 */
-	local_bh_disable();
+	spin_lock_bh(&net->sctp.addr_wq_lock);
 	bh_lock_sock(sk);
 
 	/* Hold the sock, since sk_common_release() will put sock_put()
@@ -1539,7 +1541,7 @@ static void sctp_close(struct sock *sk,
 	sk_common_release(sk);
 
 	bh_unlock_sock(sk);
-	local_bh_enable();
+	spin_unlock_bh(&net->sctp.addr_wq_lock);
 
 	sock_put(sk);
 
@@ -3580,6 +3582,7 @@ static int sctp_setsockopt_auto_asconf(s
 	if ((val && sp->do_auto_asconf) || (!val && !sp->do_auto_asconf))
 		return 0;
 
+	spin_lock_bh(&sock_net(sk)->sctp.addr_wq_lock);
 	if (val == 0 && sp->do_auto_asconf) {
 		list_del(&sp->auto_asconf_list);
 		sp->do_auto_asconf = 0;
@@ -3588,6 +3591,7 @@ static int sctp_setsockopt_auto_asconf(s
 		    &sock_net(sk)->sctp.auto_asconf_splist);
 		sp->do_auto_asconf = 1;
 	}
+	spin_unlock_bh(&sock_net(sk)->sctp.addr_wq_lock);
 	return 0;
 }
 
@@ -4121,18 +4125,28 @@ static int sctp_init_sock(struct sock *s
 	local_bh_disable();
 	percpu_counter_inc(&sctp_sockets_allocated);
 	sock_prot_inuse_add(net, sk->sk_prot, 1);
+
+	/* Nothing can fail after this block, otherwise
+	 * sctp_destroy_sock() will be called without addr_wq_lock held
+	 */
 	if (net->sctp.default_auto_asconf) {
+		spin_lock(&sock_net(sk)->sctp.addr_wq_lock);
 		list_add_tail(&sp->auto_asconf_list,
 		    &net->sctp.auto_asconf_splist);
 		sp->do_auto_asconf = 1;
-	} else
+		spin_unlock(&sock_net(sk)->sctp.addr_wq_lock);
+	} else {
 		sp->do_auto_asconf = 0;
+	}
+
 	local_bh_enable();
 
 	return 0;
 }
 
-/* Cleanup any SCTP per socket resources.  */
+/* Cleanup any SCTP per socket resources. Must be called with
+ * sock_net(sk)->sctp.addr_wq_lock held if sp->do_auto_asconf is true
+ */
 static void sctp_destroy_sock(struct sock *sk)
 {
 	struct sctp_sock *sp;
@@ -7195,6 +7209,19 @@ void sctp_copy_sock(struct sock *newsk,
 	newinet->mc_list = NULL;
 }
 
+static inline void sctp_copy_descendant(struct sock *sk_to,
+					const struct sock *sk_from)
+{
+	int ancestor_size = sizeof(struct inet_sock) +
+			    sizeof(struct sctp_sock) -
+			    offsetof(struct sctp_sock, auto_asconf_list);
+
+	if (sk_from->sk_family == PF_INET6)
+		ancestor_size += sizeof(struct ipv6_pinfo);
+
+	__inet_sk_copy_descendant(sk_to, sk_from, ancestor_size);
+}
+
 /* Populate the fields of the newsk from the oldsk and migrate the assoc
  * and its messages to the newsk.
  */
@@ -7209,7 +7236,6 @@ static void sctp_sock_migrate(struct soc
 	struct sk_buff *skb, *tmp;
 	struct sctp_ulpevent *event;
 	struct sctp_bind_hashbucket *head;
-	struct list_head tmplist;
 
 	/* Migrate socket buffer sizes and all the socket level options to the
 	 * new socket.
@@ -7217,12 +7243,7 @@ static void sctp_sock_migrate(struct soc
 	newsk->sk_sndbuf = oldsk->sk_sndbuf;
 	newsk->sk_rcvbuf = oldsk->sk_rcvbuf;
 	/* Brute force copy old sctp opt. */
-	if (oldsp->do_auto_asconf) {
-		memcpy(&tmplist, &newsp->auto_asconf_list, sizeof(tmplist));
-		inet_sk_copy_descendant(newsk, oldsk);
-		memcpy(&newsp->auto_asconf_list, &tmplist, sizeof(tmplist));
-	} else
-		inet_sk_copy_descendant(newsk, oldsk);
+	sctp_copy_descendant(newsk, oldsk);
 
 	/* Restore the ep value that was overwritten with the above structure
 	 * copy.
diff -druNp --no-dereference linux-libre-4.1-gnu/net/sunrpc/backchannel_rqst.c linux-libre-4.1.6-gnu/net/sunrpc/backchannel_rqst.c
--- linux-libre-4.1-gnu/net/sunrpc/backchannel_rqst.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/net/sunrpc/backchannel_rqst.c	2015-08-16 23:52:51.000000000 -0400
@@ -60,7 +60,7 @@ static void xprt_free_allocation(struct
 
 	dprintk("RPC:        free allocations for req= %p\n", req);
 	WARN_ON_ONCE(test_bit(RPC_BC_PA_IN_USE, &req->rq_bc_pa_state));
-	xbufp = &req->rq_private_buf;
+	xbufp = &req->rq_rcv_buf;
 	free_page((unsigned long)xbufp->head[0].iov_base);
 	xbufp = &req->rq_snd_buf;
 	free_page((unsigned long)xbufp->head[0].iov_base);
diff -druNp --no-dereference linux-libre-4.1-gnu/net/wireless/util.c linux-libre-4.1.6-gnu/net/wireless/util.c
--- linux-libre-4.1-gnu/net/wireless/util.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/net/wireless/util.c	2015-08-16 23:52:51.000000000 -0400
@@ -944,7 +944,7 @@ int cfg80211_change_iface(struct cfg8021
 	     ntype == NL80211_IFTYPE_P2P_CLIENT))
 		return -EBUSY;
 
-	if (ntype != otype && netif_running(dev)) {
+	if (ntype != otype) {
 		dev->ieee80211_ptr->use_4addr = false;
 		dev->ieee80211_ptr->mesh_id_up_len = 0;
 		wdev_lock(dev->ieee80211_ptr);
diff -druNp --no-dereference linux-libre-4.1-gnu/samples/trace_events/trace-events-sample.h linux-libre-4.1.6-gnu/samples/trace_events/trace-events-sample.h
--- linux-libre-4.1-gnu/samples/trace_events/trace-events-sample.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/samples/trace_events/trace-events-sample.h	2015-08-16 23:52:51.000000000 -0400
@@ -168,7 +168,10 @@
  *
  *      For __dynamic_array(int, foo, bar) use __get_dynamic_array(foo)
  *            Use __get_dynamic_array_len(foo) to get the length of the array
- *            saved.
+ *            saved. Note, __get_dynamic_array_len() returns the total allocated
+ *            length of the dynamic array; __print_array() expects the second
+ *            parameter to be the number of elements. To get that, the array length
+ *            needs to be divided by the element size.
  *
  *      For __string(foo, bar) use __get_str(foo)
  *
@@ -288,7 +291,7 @@ TRACE_EVENT(foo_bar,
  *    This prints out the array that is defined by __array in a nice format.
  */
 		  __print_array(__get_dynamic_array(list),
-				__get_dynamic_array_len(list),
+				__get_dynamic_array_len(list) / sizeof(int),
 				sizeof(int)),
 		  __get_str(str), __get_bitmask(cpus))
 );
diff -druNp --no-dereference linux-libre-4.1-gnu/security/inode.c linux-libre-4.1.6-gnu/security/inode.c
--- linux-libre-4.1-gnu/security/inode.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/security/inode.c	2015-08-16 23:52:51.000000000 -0400
@@ -215,19 +215,17 @@ void securityfs_remove(struct dentry *de
 }
 EXPORT_SYMBOL_GPL(securityfs_remove);
 
-static struct kobject *security_kobj;
-
 static int __init securityfs_init(void)
 {
 	int retval;
 
-	security_kobj = kobject_create_and_add("security", kernel_kobj);
-	if (!security_kobj)
-		return -EINVAL;
+	retval = sysfs_create_mount_point(kernel_kobj, "security");
+	if (retval)
+		return retval;
 
 	retval = register_filesystem(&fs_type);
 	if (retval)
-		kobject_put(security_kobj);
+		sysfs_remove_mount_point(kernel_kobj, "security");
 	return retval;
 }
 
diff -druNp --no-dereference linux-libre-4.1-gnu/security/integrity/evm/evm_main.c linux-libre-4.1.6-gnu/security/integrity/evm/evm_main.c
--- linux-libre-4.1-gnu/security/integrity/evm/evm_main.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/security/integrity/evm/evm_main.c	2015-08-16 23:52:51.000000000 -0400
@@ -296,6 +296,17 @@ static int evm_protect_xattr(struct dent
 		iint = integrity_iint_find(d_backing_inode(dentry));
 		if (iint && (iint->flags & IMA_NEW_FILE))
 			return 0;
+
+		/* exception for pseudo filesystems */
+		if (dentry->d_inode->i_sb->s_magic == TMPFS_MAGIC
+		    || dentry->d_inode->i_sb->s_magic == SYSFS_MAGIC)
+			return 0;
+
+		integrity_audit_msg(AUDIT_INTEGRITY_METADATA,
+				    dentry->d_inode, dentry->d_name.name,
+				    "update_metadata",
+				    integrity_status_msg[evm_status],
+				    -EPERM, 0);
 	}
 out:
 	if (evm_status != INTEGRITY_PASS)
diff -druNp --no-dereference linux-libre-4.1-gnu/security/integrity/ima/ima_fs.c linux-libre-4.1.6-gnu/security/integrity/ima/ima_fs.c
--- linux-libre-4.1-gnu/security/integrity/ima/ima_fs.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/security/integrity/ima/ima_fs.c	2015-08-16 23:52:51.000000000 -0400
@@ -190,9 +190,9 @@ static const struct file_operations ima_
 	.release = seq_release,
 };
 
-void ima_print_digest(struct seq_file *m, u8 *digest, int size)
+void ima_print_digest(struct seq_file *m, u8 *digest, u32 size)
 {
-	int i;
+	u32 i;
 
 	for (i = 0; i < size; i++)
 		seq_printf(m, "%02x", *(digest + i));
diff -druNp --no-dereference linux-libre-4.1-gnu/security/integrity/ima/ima.h linux-libre-4.1.6-gnu/security/integrity/ima/ima.h
--- linux-libre-4.1-gnu/security/integrity/ima/ima.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/security/integrity/ima/ima.h	2015-08-16 23:52:51.000000000 -0400
@@ -106,7 +106,7 @@ void ima_add_violation(struct file *file
 		       const char *op, const char *cause);
 int ima_init_crypto(void);
 void ima_putc(struct seq_file *m, void *data, int datalen);
-void ima_print_digest(struct seq_file *m, u8 *digest, int size);
+void ima_print_digest(struct seq_file *m, u8 *digest, u32 size);
 struct ima_template_desc *ima_template_desc_current(void);
 int ima_init_template(void);
 
diff -druNp --no-dereference linux-libre-4.1-gnu/security/integrity/ima/ima_policy.c linux-libre-4.1.6-gnu/security/integrity/ima/ima_policy.c
--- linux-libre-4.1-gnu/security/integrity/ima/ima_policy.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/security/integrity/ima/ima_policy.c	2015-08-16 23:52:51.000000000 -0400
@@ -27,6 +27,8 @@
 #define IMA_UID		0x0008
 #define IMA_FOWNER	0x0010
 #define IMA_FSUUID	0x0020
+#define IMA_INMASK	0x0040
+#define IMA_EUID	0x0080
 
 #define UNKNOWN		0
 #define MEASURE		0x0001	/* same as IMA_MEASURE */
@@ -42,6 +44,8 @@ enum lsm_rule_types { LSM_OBJ_USER, LSM_
 	LSM_SUBJ_USER, LSM_SUBJ_ROLE, LSM_SUBJ_TYPE
 };
 
+enum policy_types { ORIGINAL_TCB = 1, DEFAULT_TCB };
+
 struct ima_rule_entry {
 	struct list_head list;
 	int action;
@@ -70,7 +74,7 @@ struct ima_rule_entry {
  * normal users can easily run the machine out of memory simply building
  * and running executables.
  */
-static struct ima_rule_entry default_rules[] = {
+static struct ima_rule_entry dont_measure_rules[] = {
 	{.action = DONT_MEASURE, .fsmagic = PROC_SUPER_MAGIC, .flags = IMA_FSMAGIC},
 	{.action = DONT_MEASURE, .fsmagic = SYSFS_MAGIC, .flags = IMA_FSMAGIC},
 	{.action = DONT_MEASURE, .fsmagic = DEBUGFS_MAGIC, .flags = IMA_FSMAGIC},
@@ -79,12 +83,31 @@ static struct ima_rule_entry default_rul
 	{.action = DONT_MEASURE, .fsmagic = BINFMTFS_MAGIC, .flags = IMA_FSMAGIC},
 	{.action = DONT_MEASURE, .fsmagic = SECURITYFS_MAGIC, .flags = IMA_FSMAGIC},
 	{.action = DONT_MEASURE, .fsmagic = SELINUX_MAGIC, .flags = IMA_FSMAGIC},
+	{.action = DONT_MEASURE, .fsmagic = CGROUP_SUPER_MAGIC,
+	 .flags = IMA_FSMAGIC},
+	{.action = DONT_MEASURE, .fsmagic = NSFS_MAGIC, .flags = IMA_FSMAGIC}
+};
+
+static struct ima_rule_entry original_measurement_rules[] = {
 	{.action = MEASURE, .func = MMAP_CHECK, .mask = MAY_EXEC,
 	 .flags = IMA_FUNC | IMA_MASK},
 	{.action = MEASURE, .func = BPRM_CHECK, .mask = MAY_EXEC,
 	 .flags = IMA_FUNC | IMA_MASK},
-	{.action = MEASURE, .func = FILE_CHECK, .mask = MAY_READ, .uid = GLOBAL_ROOT_UID,
-	 .flags = IMA_FUNC | IMA_MASK | IMA_UID},
+	{.action = MEASURE, .func = FILE_CHECK, .mask = MAY_READ,
+	 .uid = GLOBAL_ROOT_UID, .flags = IMA_FUNC | IMA_MASK | IMA_UID},
+	{.action = MEASURE, .func = MODULE_CHECK, .flags = IMA_FUNC},
+	{.action = MEASURE, .func = FIRMWARE_CHECK, .flags = IMA_FUNC},
+};
+
+static struct ima_rule_entry default_measurement_rules[] = {
+	{.action = MEASURE, .func = MMAP_CHECK, .mask = MAY_EXEC,
+	 .flags = IMA_FUNC | IMA_MASK},
+	{.action = MEASURE, .func = BPRM_CHECK, .mask = MAY_EXEC,
+	 .flags = IMA_FUNC | IMA_MASK},
+	{.action = MEASURE, .func = FILE_CHECK, .mask = MAY_READ,
+	 .uid = GLOBAL_ROOT_UID, .flags = IMA_FUNC | IMA_INMASK | IMA_EUID},
+	{.action = MEASURE, .func = FILE_CHECK, .mask = MAY_READ,
+	 .uid = GLOBAL_ROOT_UID, .flags = IMA_FUNC | IMA_INMASK | IMA_UID},
 	{.action = MEASURE, .func = MODULE_CHECK, .flags = IMA_FUNC},
 	{.action = MEASURE, .func = FIRMWARE_CHECK, .flags = IMA_FUNC},
 };
@@ -99,6 +122,7 @@ static struct ima_rule_entry default_app
 	{.action = DONT_APPRAISE, .fsmagic = BINFMTFS_MAGIC, .flags = IMA_FSMAGIC},
 	{.action = DONT_APPRAISE, .fsmagic = SECURITYFS_MAGIC, .flags = IMA_FSMAGIC},
 	{.action = DONT_APPRAISE, .fsmagic = SELINUX_MAGIC, .flags = IMA_FSMAGIC},
+	{.action = DONT_APPRAISE, .fsmagic = NSFS_MAGIC, .flags = IMA_FSMAGIC},
 	{.action = DONT_APPRAISE, .fsmagic = CGROUP_SUPER_MAGIC, .flags = IMA_FSMAGIC},
 #ifndef CONFIG_IMA_APPRAISE_SIGNED_INIT
 	{.action = APPRAISE, .fowner = GLOBAL_ROOT_UID, .flags = IMA_FOWNER},
@@ -115,14 +139,29 @@ static struct list_head *ima_rules;
 
 static DEFINE_MUTEX(ima_rules_mutex);
 
-static bool ima_use_tcb __initdata;
+static int ima_policy __initdata;
 static int __init default_measure_policy_setup(char *str)
 {
-	ima_use_tcb = 1;
+	if (ima_policy)
+		return 1;
+
+	ima_policy = ORIGINAL_TCB;
 	return 1;
 }
 __setup("ima_tcb", default_measure_policy_setup);
 
+static int __init policy_setup(char *str)
+{
+	if (ima_policy)
+		return 1;
+
+	if (strcmp(str, "tcb") == 0)
+		ima_policy = DEFAULT_TCB;
+
+	return 1;
+}
+__setup("ima_policy=", policy_setup);
+
 static bool ima_use_appraise_tcb __initdata;
 static int __init default_appraise_policy_setup(char *str)
 {
@@ -182,6 +221,9 @@ static bool ima_match_rules(struct ima_r
 	if ((rule->flags & IMA_MASK) &&
 	    (rule->mask != mask && func != POST_SETATTR))
 		return false;
+	if ((rule->flags & IMA_INMASK) &&
+	    (!(rule->mask & mask) && func != POST_SETATTR))
+		return false;
 	if ((rule->flags & IMA_FSMAGIC)
 	    && rule->fsmagic != inode->i_sb->s_magic)
 		return false;
@@ -190,6 +232,16 @@ static bool ima_match_rules(struct ima_r
 		return false;
 	if ((rule->flags & IMA_UID) && !uid_eq(rule->uid, cred->uid))
 		return false;
+	if (rule->flags & IMA_EUID) {
+		if (has_capability_noaudit(current, CAP_SETUID)) {
+			if (!uid_eq(rule->uid, cred->euid)
+			    && !uid_eq(rule->uid, cred->suid)
+			    && !uid_eq(rule->uid, cred->uid))
+				return false;
+		} else if (!uid_eq(rule->uid, cred->euid))
+			return false;
+	}
+
 	if ((rule->flags & IMA_FOWNER) && !uid_eq(rule->fowner, inode->i_uid))
 		return false;
 	for (i = 0; i < MAX_LSM_RULES; i++) {
@@ -333,21 +385,31 @@ void __init ima_init_policy(void)
 {
 	int i, measure_entries, appraise_entries;
 
-	/* if !ima_use_tcb set entries = 0 so we load NO default rules */
-	measure_entries = ima_use_tcb ? ARRAY_SIZE(default_rules) : 0;
+	/* if !ima_policy set entries = 0 so we load NO default rules */
+	measure_entries = ima_policy ? ARRAY_SIZE(dont_measure_rules) : 0;
 	appraise_entries = ima_use_appraise_tcb ?
 			 ARRAY_SIZE(default_appraise_rules) : 0;
 
-	for (i = 0; i < measure_entries + appraise_entries; i++) {
-		if (i < measure_entries)
-			list_add_tail(&default_rules[i].list,
-				      &ima_default_rules);
-		else {
-			int j = i - measure_entries;
+	for (i = 0; i < measure_entries; i++)
+		list_add_tail(&dont_measure_rules[i].list, &ima_default_rules);
 
-			list_add_tail(&default_appraise_rules[j].list,
+	switch (ima_policy) {
+	case ORIGINAL_TCB:
+		for (i = 0; i < ARRAY_SIZE(original_measurement_rules); i++)
+			list_add_tail(&original_measurement_rules[i].list,
 				      &ima_default_rules);
-		}
+		break;
+	case DEFAULT_TCB:
+		for (i = 0; i < ARRAY_SIZE(default_measurement_rules); i++)
+			list_add_tail(&default_measurement_rules[i].list,
+				      &ima_default_rules);
+	default:
+		break;
+	}
+
+	for (i = 0; i < appraise_entries; i++) {
+		list_add_tail(&default_appraise_rules[i].list,
+			      &ima_default_rules);
 	}
 
 	ima_rules = &ima_default_rules;
@@ -373,7 +435,8 @@ enum {
 	Opt_audit,
 	Opt_obj_user, Opt_obj_role, Opt_obj_type,
 	Opt_subj_user, Opt_subj_role, Opt_subj_type,
-	Opt_func, Opt_mask, Opt_fsmagic, Opt_uid, Opt_fowner,
+	Opt_func, Opt_mask, Opt_fsmagic,
+	Opt_uid, Opt_euid, Opt_fowner,
 	Opt_appraise_type, Opt_fsuuid, Opt_permit_directio
 };
 
@@ -394,6 +457,7 @@ static match_table_t policy_tokens = {
 	{Opt_fsmagic, "fsmagic=%s"},
 	{Opt_fsuuid, "fsuuid=%s"},
 	{Opt_uid, "uid=%s"},
+	{Opt_euid, "euid=%s"},
 	{Opt_fowner, "fowner=%s"},
 	{Opt_appraise_type, "appraise_type=%s"},
 	{Opt_permit_directio, "permit_directio"},
@@ -435,6 +499,7 @@ static void ima_log_string(struct audit_
 static int ima_parse_rule(char *rule, struct ima_rule_entry *entry)
 {
 	struct audit_buffer *ab;
+	char *from;
 	char *p;
 	int result = 0;
 
@@ -525,18 +590,23 @@ static int ima_parse_rule(char *rule, st
 			if (entry->mask)
 				result = -EINVAL;
 
-			if ((strcmp(args[0].from, "MAY_EXEC")) == 0)
+			from = args[0].from;
+			if (*from == '^')
+				from++;
+
+			if ((strcmp(from, "MAY_EXEC")) == 0)
 				entry->mask = MAY_EXEC;
-			else if (strcmp(args[0].from, "MAY_WRITE") == 0)
+			else if (strcmp(from, "MAY_WRITE") == 0)
 				entry->mask = MAY_WRITE;
-			else if (strcmp(args[0].from, "MAY_READ") == 0)
+			else if (strcmp(from, "MAY_READ") == 0)
 				entry->mask = MAY_READ;
-			else if (strcmp(args[0].from, "MAY_APPEND") == 0)
+			else if (strcmp(from, "MAY_APPEND") == 0)
 				entry->mask = MAY_APPEND;
 			else
 				result = -EINVAL;
 			if (!result)
-				entry->flags |= IMA_MASK;
+				entry->flags |= (*args[0].from == '^')
+				     ? IMA_INMASK : IMA_MASK;
 			break;
 		case Opt_fsmagic:
 			ima_log_string(ab, "fsmagic", args[0].from);
@@ -566,6 +636,9 @@ static int ima_parse_rule(char *rule, st
 			break;
 		case Opt_uid:
 			ima_log_string(ab, "uid", args[0].from);
+		case Opt_euid:
+			if (token == Opt_euid)
+				ima_log_string(ab, "euid", args[0].from);
 
 			if (uid_valid(entry->uid)) {
 				result = -EINVAL;
@@ -574,11 +647,14 @@ static int ima_parse_rule(char *rule, st
 
 			result = kstrtoul(args[0].from, 10, &lnum);
 			if (!result) {
-				entry->uid = make_kuid(current_user_ns(), (uid_t)lnum);
-				if (!uid_valid(entry->uid) || (((uid_t)lnum) != lnum))
+				entry->uid = make_kuid(current_user_ns(),
+						       (uid_t) lnum);
+				if (!uid_valid(entry->uid) ||
+				    (uid_t)lnum != lnum)
 					result = -EINVAL;
 				else
-					entry->flags |= IMA_UID;
+					entry->flags |= (token == Opt_uid)
+					    ? IMA_UID : IMA_EUID;
 			}
 			break;
 		case Opt_fowner:
diff -druNp --no-dereference linux-libre-4.1-gnu/security/integrity/ima/ima_template_lib.c linux-libre-4.1.6-gnu/security/integrity/ima/ima_template_lib.c
--- linux-libre-4.1-gnu/security/integrity/ima/ima_template_lib.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/security/integrity/ima/ima_template_lib.c	2015-08-16 23:52:51.000000000 -0400
@@ -70,7 +70,8 @@ static void ima_show_template_data_ascii
 					 enum data_formats datafmt,
 					 struct ima_field_data *field_data)
 {
-	u8 *buf_ptr = field_data->data, buflen = field_data->len;
+	u8 *buf_ptr = field_data->data;
+	u32 buflen = field_data->len;
 
 	switch (datafmt) {
 	case DATA_FMT_DIGEST_WITH_ALGO:
diff -druNp --no-dereference linux-libre-4.1-gnu/security/keys/keyring.c linux-libre-4.1.6-gnu/security/keys/keyring.c
--- linux-libre-4.1-gnu/security/keys/keyring.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/security/keys/keyring.c	2015-08-16 23:52:51.000000000 -0400
@@ -1181,9 +1181,11 @@ void __key_link_end(struct key *keyring,
 	if (index_key->type == &key_type_keyring)
 		up_write(&keyring_serialise_link_sem);
 
-	if (edit && !edit->dead_leaf) {
-		key_payload_reserve(keyring,
-				    keyring->datalen - KEYQUOTA_LINK_BYTES);
+	if (edit) {
+		if (!edit->dead_leaf) {
+			key_payload_reserve(keyring,
+				keyring->datalen - KEYQUOTA_LINK_BYTES);
+		}
 		assoc_array_cancel_edit(edit);
 	}
 	up_write(&keyring->sem);
diff -druNp --no-dereference linux-libre-4.1-gnu/security/selinux/hooks.c linux-libre-4.1.6-gnu/security/selinux/hooks.c
--- linux-libre-4.1-gnu/security/selinux/hooks.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/security/selinux/hooks.c	2015-08-16 23:52:51.000000000 -0400
@@ -403,6 +403,7 @@ static int selinux_is_sblabel_mnt(struct
 	return sbsec->behavior == SECURITY_FS_USE_XATTR ||
 		sbsec->behavior == SECURITY_FS_USE_TRANS ||
 		sbsec->behavior == SECURITY_FS_USE_TASK ||
+		sbsec->behavior == SECURITY_FS_USE_NATIVE ||
 		/* Special handling. Genfs but also in-core setxattr handler */
 		!strcmp(sb->s_type->name, "sysfs") ||
 		!strcmp(sb->s_type->name, "pstore") ||
@@ -3287,7 +3288,8 @@ static int file_map_prot_check(struct fi
 	int rc = 0;
 
 	if (default_noexec &&
-	    (prot & PROT_EXEC) && (!file || (!shared && (prot & PROT_WRITE)))) {
+	    (prot & PROT_EXEC) && (!file || IS_PRIVATE(file_inode(file)) ||
+				   (!shared && (prot & PROT_WRITE)))) {
 		/*
 		 * We are making executable an anonymous mapping or a
 		 * private file mapping that will also be writable.
diff -druNp --no-dereference linux-libre-4.1-gnu/security/selinux/selinuxfs.c linux-libre-4.1.6-gnu/security/selinux/selinuxfs.c
--- linux-libre-4.1-gnu/security/selinux/selinuxfs.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/security/selinux/selinuxfs.c	2015-08-16 23:52:51.000000000 -0400
@@ -1853,7 +1853,6 @@ static struct file_system_type sel_fs_ty
 };
 
 struct vfsmount *selinuxfs_mount;
-static struct kobject *selinuxfs_kobj;
 
 static int __init init_sel_fs(void)
 {
@@ -1862,13 +1861,13 @@ static int __init init_sel_fs(void)
 	if (!selinux_enabled)
 		return 0;
 
-	selinuxfs_kobj = kobject_create_and_add("selinux", fs_kobj);
-	if (!selinuxfs_kobj)
-		return -ENOMEM;
+	err = sysfs_create_mount_point(fs_kobj, "selinux");
+	if (err)
+		return err;
 
 	err = register_filesystem(&sel_fs_type);
 	if (err) {
-		kobject_put(selinuxfs_kobj);
+		sysfs_remove_mount_point(fs_kobj, "selinux");
 		return err;
 	}
 
@@ -1887,7 +1886,7 @@ __initcall(init_sel_fs);
 #ifdef CONFIG_SECURITY_SELINUX_DISABLE
 void exit_sel_fs(void)
 {
-	kobject_put(selinuxfs_kobj);
+	sysfs_remove_mount_point(fs_kobj, "selinux");
 	kern_unmount(selinuxfs_mount);
 	unregister_filesystem(&sel_fs_type);
 }
diff -druNp --no-dereference linux-libre-4.1-gnu/security/selinux/ss/ebitmap.c linux-libre-4.1.6-gnu/security/selinux/ss/ebitmap.c
--- linux-libre-4.1-gnu/security/selinux/ss/ebitmap.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/security/selinux/ss/ebitmap.c	2015-08-16 23:52:51.000000000 -0400
@@ -153,6 +153,12 @@ int ebitmap_netlbl_import(struct ebitmap
 		if (offset == (u32)-1)
 			return 0;
 
+		/* don't waste ebitmap space if the netlabel bitmap is empty */
+		if (bitmap == 0) {
+			offset += EBITMAP_UNIT_SIZE;
+			continue;
+		}
+
 		if (e_iter == NULL ||
 		    offset >= e_iter->startbit + EBITMAP_SIZE) {
 			e_prev = e_iter;
diff -druNp --no-dereference linux-libre-4.1-gnu/security/smack/smackfs.c linux-libre-4.1.6-gnu/security/smack/smackfs.c
--- linux-libre-4.1-gnu/security/smack/smackfs.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/security/smack/smackfs.c	2015-08-16 23:52:51.000000000 -0400
@@ -2241,16 +2241,16 @@ static const struct file_operations smk_
 	.llseek		= generic_file_llseek,
 };
 
-static struct kset *smackfs_kset;
 /**
  * smk_init_sysfs - initialize /sys/fs/smackfs
  *
  */
 static int smk_init_sysfs(void)
 {
-	smackfs_kset = kset_create_and_add("smackfs", NULL, fs_kobj);
-	if (!smackfs_kset)
-		return -ENOMEM;
+	int err;
+	err = sysfs_create_mount_point(fs_kobj, "smackfs");
+	if (err)
+		return err;
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-4.1-gnu/sound/core/pcm.c linux-libre-4.1.6-gnu/sound/core/pcm.c
--- linux-libre-4.1-gnu/sound/core/pcm.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/sound/core/pcm.c	2015-08-16 23:52:51.000000000 -0400
@@ -1027,7 +1027,8 @@ void snd_pcm_detach_substream(struct snd
 static ssize_t show_pcm_class(struct device *dev,
 			      struct device_attribute *attr, char *buf)
 {
-	struct snd_pcm *pcm;
+	struct snd_pcm_str *pstr = container_of(dev, struct snd_pcm_str, dev);
+	struct snd_pcm *pcm = pstr->pcm;
 	const char *str;
 	static const char *strs[SNDRV_PCM_CLASS_LAST + 1] = {
 		[SNDRV_PCM_CLASS_GENERIC] = "generic",
@@ -1036,8 +1037,7 @@ static ssize_t show_pcm_class(struct dev
 		[SNDRV_PCM_CLASS_DIGITIZER] = "digitizer",
 	};
 
-	if (! (pcm = dev_get_drvdata(dev)) ||
-	    pcm->dev_class > SNDRV_PCM_CLASS_LAST)
+	if (pcm->dev_class > SNDRV_PCM_CLASS_LAST)
 		str = "none";
 	else
 		str = strs[pcm->dev_class];
diff -druNp --no-dereference linux-libre-4.1-gnu/sound/core/pcm_native.c linux-libre-4.1.6-gnu/sound/core/pcm_native.c
--- linux-libre-4.1-gnu/sound/core/pcm_native.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/sound/core/pcm_native.c	2015-08-16 23:52:51.000000000 -0400
@@ -85,7 +85,7 @@ static DECLARE_RWSEM(snd_pcm_link_rwsem)
 void snd_pcm_stream_lock(struct snd_pcm_substream *substream)
 {
 	if (substream->pcm->nonatomic) {
-		down_read(&snd_pcm_link_rwsem);
+		down_read_nested(&snd_pcm_link_rwsem, SINGLE_DEPTH_NESTING);
 		mutex_lock(&substream->self_group.mutex);
 	} else {
 		read_lock(&snd_pcm_link_rwlock);
diff -druNp --no-dereference linux-libre-4.1-gnu/sound/firewire/amdtp.c linux-libre-4.1.6-gnu/sound/firewire/amdtp.c
--- linux-libre-4.1-gnu/sound/firewire/amdtp.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/sound/firewire/amdtp.c	2015-08-16 23:52:51.000000000 -0400
@@ -730,8 +730,9 @@ static void handle_in_packet(struct amdt
 	    s->data_block_counter != UINT_MAX)
 		data_block_counter = s->data_block_counter;
 
-	if (((s->flags & CIP_SKIP_DBC_ZERO_CHECK) && data_block_counter == 0) ||
-	    (s->data_block_counter == UINT_MAX)) {
+	if (((s->flags & CIP_SKIP_DBC_ZERO_CHECK) &&
+	     data_block_counter == s->tx_first_dbc) ||
+	    s->data_block_counter == UINT_MAX) {
 		lost = false;
 	} else if (!(s->flags & CIP_DBC_IS_END_EVENT)) {
 		lost = data_block_counter != s->data_block_counter;
diff -druNp --no-dereference linux-libre-4.1-gnu/sound/firewire/amdtp.h linux-libre-4.1.6-gnu/sound/firewire/amdtp.h
--- linux-libre-4.1-gnu/sound/firewire/amdtp.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/sound/firewire/amdtp.h	2015-08-16 23:52:51.000000000 -0400
@@ -153,6 +153,8 @@ struct amdtp_stream {
 
 	/* quirk: fixed interval of dbc between previos/current packets. */
 	unsigned int tx_dbc_interval;
+	/* quirk: indicate the value of dbc field in a first packet. */
+	unsigned int tx_first_dbc;
 
 	bool callbacked;
 	wait_queue_head_t callback_wait;
diff -druNp --no-dereference linux-libre-4.1-gnu/sound/firewire/fireworks/fireworks.c linux-libre-4.1.6-gnu/sound/firewire/fireworks/fireworks.c
--- linux-libre-4.1-gnu/sound/firewire/fireworks/fireworks.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/sound/firewire/fireworks/fireworks.c	2015-08-16 23:52:51.000000000 -0400
@@ -248,8 +248,16 @@ efw_probe(struct fw_unit *unit,
 	err = get_hardware_info(efw);
 	if (err < 0)
 		goto error;
+	/* AudioFire8 (since 2009) and AudioFirePre8 */
 	if (entry->model_id == MODEL_ECHO_AUDIOFIRE_9)
 		efw->is_af9 = true;
+	/* These models uses the same firmware. */
+	if (entry->model_id == MODEL_ECHO_AUDIOFIRE_2 ||
+	    entry->model_id == MODEL_ECHO_AUDIOFIRE_4 ||
+	    entry->model_id == MODEL_ECHO_AUDIOFIRE_9 ||
+	    entry->model_id == MODEL_GIBSON_RIP ||
+	    entry->model_id == MODEL_GIBSON_GOLDTOP)
+		efw->is_fireworks3 = true;
 
 	snd_efw_proc_init(efw);
 
diff -druNp --no-dereference linux-libre-4.1-gnu/sound/firewire/fireworks/fireworks.h linux-libre-4.1.6-gnu/sound/firewire/fireworks/fireworks.h
--- linux-libre-4.1-gnu/sound/firewire/fireworks/fireworks.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/sound/firewire/fireworks/fireworks.h	2015-08-16 23:52:51.000000000 -0400
@@ -71,6 +71,7 @@ struct snd_efw {
 
 	/* for quirks */
 	bool is_af9;
+	bool is_fireworks3;
 	u32 firmware_version;
 
 	unsigned int midi_in_ports;
diff -druNp --no-dereference linux-libre-4.1-gnu/sound/firewire/fireworks/fireworks_stream.c linux-libre-4.1.6-gnu/sound/firewire/fireworks/fireworks_stream.c
--- linux-libre-4.1-gnu/sound/firewire/fireworks/fireworks_stream.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/sound/firewire/fireworks/fireworks_stream.c	2015-08-16 23:52:51.000000000 -0400
@@ -172,6 +172,15 @@ int snd_efw_stream_init_duplex(struct sn
 	efw->tx_stream.flags |= CIP_DBC_IS_END_EVENT;
 	/* Fireworks reset dbc at bus reset. */
 	efw->tx_stream.flags |= CIP_SKIP_DBC_ZERO_CHECK;
+	/*
+	 * But Recent firmwares starts packets with non-zero dbc.
+	 * Driver version 5.7.6 installs firmware version 5.7.3.
+	 */
+	if (efw->is_fireworks3 &&
+	    (efw->firmware_version == 0x5070000 ||
+	     efw->firmware_version == 0x5070300 ||
+	     efw->firmware_version == 0x5080000))
+		efw->tx_stream.tx_first_dbc = 0x02;
 	/* AudioFire9 always reports wrong dbs. */
 	if (efw->is_af9)
 		efw->tx_stream.flags |= CIP_WRONG_DBS;
diff -druNp --no-dereference linux-libre-4.1-gnu/sound/pci/hda/hda_intel.c linux-libre-4.1.6-gnu/sound/pci/hda/hda_intel.c
--- linux-libre-4.1-gnu/sound/pci/hda/hda_intel.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/sound/pci/hda/hda_intel.c	2015-08-16 23:52:51.000000000 -0400
@@ -2054,6 +2054,10 @@ static const struct pci_device_id azx_id
 	{ PCI_DEVICE(0x1022, 0x780d),
 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_SB },
 	/* ATI HDMI */
+	{ PCI_DEVICE(0x1002, 0x1308),
+	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
+	{ PCI_DEVICE(0x1002, 0x157a),
+	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
 	{ PCI_DEVICE(0x1002, 0x793b),
 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
 	{ PCI_DEVICE(0x1002, 0x7919),
@@ -2062,6 +2066,8 @@ static const struct pci_device_id azx_id
 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
 	{ PCI_DEVICE(0x1002, 0x970f),
 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
+	{ PCI_DEVICE(0x1002, 0x9840),
+	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
 	{ PCI_DEVICE(0x1002, 0xaa00),
 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
 	{ PCI_DEVICE(0x1002, 0xaa08),
@@ -2106,8 +2112,14 @@ static const struct pci_device_id azx_id
 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
 	{ PCI_DEVICE(0x1002, 0xaab0),
 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
+	{ PCI_DEVICE(0x1002, 0xaac0),
+	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
 	{ PCI_DEVICE(0x1002, 0xaac8),
 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
+	{ PCI_DEVICE(0x1002, 0xaad8),
+	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
+	{ PCI_DEVICE(0x1002, 0xaae8),
+	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
 	/* VIA VT8251/VT8237A */
 	{ PCI_DEVICE(0x1106, 0x3288),
 	  .driver_data = AZX_DRIVER_VIA | AZX_DCAPS_POSFIX_VIA },
diff -druNp --no-dereference linux-libre-4.1-gnu/sound/pci/hda/patch_cirrus.c linux-libre-4.1.6-gnu/sound/pci/hda/patch_cirrus.c
--- linux-libre-4.1-gnu/sound/pci/hda/patch_cirrus.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/sound/pci/hda/patch_cirrus.c	2015-08-16 23:52:51.000000000 -0400
@@ -1001,9 +1001,7 @@ static void cs4210_spdif_automute(struct
 
 	spec->spdif_present = spdif_present;
 	/* SPDIF TX on/off */
-	if (spdif_present)
-		snd_hda_set_pin_ctl(codec, spdif_pin,
-				    spdif_present ? PIN_OUT : 0);
+	snd_hda_set_pin_ctl(codec, spdif_pin, spdif_present ? PIN_OUT : 0);
 
 	cs_automute(codec);
 }
diff -druNp --no-dereference linux-libre-4.1-gnu/sound/pci/hda/patch_hdmi.c linux-libre-4.1.6-gnu/sound/pci/hda/patch_hdmi.c
--- linux-libre-4.1-gnu/sound/pci/hda/patch_hdmi.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/sound/pci/hda/patch_hdmi.c	2015-08-16 23:52:51.000000000 -0400
@@ -3333,6 +3333,7 @@ static const struct hda_codec_preset snd
 { .id = 0x10de0070, .name = "GPU 70 HDMI/DP",	.patch = patch_nvhdmi },
 { .id = 0x10de0071, .name = "GPU 71 HDMI/DP",	.patch = patch_nvhdmi },
 { .id = 0x10de0072, .name = "GPU 72 HDMI/DP",	.patch = patch_nvhdmi },
+{ .id = 0x10de007d, .name = "GPU 7d HDMI/DP",	.patch = patch_nvhdmi },
 { .id = 0x10de8001, .name = "MCP73 HDMI",	.patch = patch_nvhdmi_2ch },
 { .id = 0x11069f80, .name = "VX900 HDMI/DP",	.patch = patch_via_hdmi },
 { .id = 0x11069f81, .name = "VX900 HDMI/DP",	.patch = patch_via_hdmi },
@@ -3396,6 +3397,7 @@ MODULE_ALIAS("snd-hda-codec-id:10de0067"
 MODULE_ALIAS("snd-hda-codec-id:10de0070");
 MODULE_ALIAS("snd-hda-codec-id:10de0071");
 MODULE_ALIAS("snd-hda-codec-id:10de0072");
+MODULE_ALIAS("snd-hda-codec-id:10de007d");
 MODULE_ALIAS("snd-hda-codec-id:10de8001");
 MODULE_ALIAS("snd-hda-codec-id:11069f80");
 MODULE_ALIAS("snd-hda-codec-id:11069f81");
diff -druNp --no-dereference linux-libre-4.1-gnu/sound/pci/hda/patch_realtek.c linux-libre-4.1.6-gnu/sound/pci/hda/patch_realtek.c
--- linux-libre-4.1-gnu/sound/pci/hda/patch_realtek.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/sound/pci/hda/patch_realtek.c	2015-08-16 23:52:51.000000000 -0400
@@ -2224,7 +2224,7 @@ static const struct snd_pci_quirk alc882
 	SND_PCI_QUIRK(0x106b, 0x4300, "iMac 9,1", ALC889_FIXUP_IMAC91_VREF),
 	SND_PCI_QUIRK(0x106b, 0x4600, "MacbookPro 5,2", ALC889_FIXUP_IMAC91_VREF),
 	SND_PCI_QUIRK(0x106b, 0x4900, "iMac 9,1 Aluminum", ALC889_FIXUP_IMAC91_VREF),
-	SND_PCI_QUIRK(0x106b, 0x4a00, "Macbook 5,2", ALC889_FIXUP_IMAC91_VREF),
+	SND_PCI_QUIRK(0x106b, 0x4a00, "Macbook 5,2", ALC889_FIXUP_MBA11_VREF),
 
 	SND_PCI_QUIRK(0x1071, 0x8258, "Evesham Voyaeger", ALC882_FIXUP_EAPD),
 	SND_PCI_QUIRK(0x1462, 0x7350, "MSI-7350", ALC889_FIXUP_CD),
@@ -4458,6 +4458,7 @@ enum {
 	ALC269_FIXUP_LIFEBOOK,
 	ALC269_FIXUP_LIFEBOOK_EXTMIC,
 	ALC269_FIXUP_LIFEBOOK_HP_PIN,
+	ALC269_FIXUP_LIFEBOOK_NO_HP_TO_LINEOUT,
 	ALC269_FIXUP_AMIC,
 	ALC269_FIXUP_DMIC,
 	ALC269VB_FIXUP_AMIC,
@@ -4478,6 +4479,7 @@ enum {
 	ALC269_FIXUP_DELL3_MIC_NO_PRESENCE,
 	ALC269_FIXUP_HEADSET_MODE,
 	ALC269_FIXUP_HEADSET_MODE_NO_HP_MIC,
+	ALC269_FIXUP_ASPIRE_HEADSET_MIC,
 	ALC269_FIXUP_ASUS_X101_FUNC,
 	ALC269_FIXUP_ASUS_X101_VERB,
 	ALC269_FIXUP_ASUS_X101,
@@ -4505,6 +4507,7 @@ enum {
 	ALC255_FIXUP_HEADSET_MODE_NO_HP_MIC,
 	ALC293_FIXUP_DELL1_MIC_NO_PRESENCE,
 	ALC292_FIXUP_TPT440_DOCK,
+	ALC292_FIXUP_TPT440_DOCK2,
 	ALC283_FIXUP_BXBT2807_MIC,
 	ALC255_FIXUP_DELL_WMI_MIC_MUTE_LED,
 	ALC282_FIXUP_ASPIRE_V5_PINS,
@@ -4515,6 +4518,8 @@ enum {
 	ALC288_FIXUP_DELL_HEADSET_MODE,
 	ALC288_FIXUP_DELL1_MIC_NO_PRESENCE,
 	ALC288_FIXUP_DELL_XPS_13_GPIO6,
+	ALC288_FIXUP_DELL_XPS_13,
+	ALC288_FIXUP_DISABLE_AAMIX,
 	ALC292_FIXUP_DELL_E7X,
 	ALC292_FIXUP_DISABLE_AAMIX,
 };
@@ -4623,6 +4628,10 @@ static const struct hda_fixup alc269_fix
 			{ }
 		},
 	},
+	[ALC269_FIXUP_LIFEBOOK_NO_HP_TO_LINEOUT] = {
+		.type = HDA_FIXUP_FUNC,
+		.v.func = alc269_fixup_pincfg_no_hp_to_lineout,
+	},
 	[ALC269_FIXUP_AMIC] = {
 		.type = HDA_FIXUP_PINS,
 		.v.pins = (const struct hda_pintbl[]) {
@@ -4751,6 +4760,15 @@ static const struct hda_fixup alc269_fix
 		.type = HDA_FIXUP_FUNC,
 		.v.func = alc_fixup_headset_mode_no_hp_mic,
 	},
+	[ALC269_FIXUP_ASPIRE_HEADSET_MIC] = {
+		.type = HDA_FIXUP_PINS,
+		.v.pins = (const struct hda_pintbl[]) {
+			{ 0x19, 0x01a1913c }, /* headset mic w/o jack detect */
+			{ }
+		},
+		.chained = true,
+		.chain_id = ALC269_FIXUP_HEADSET_MODE,
+	},
 	[ALC286_FIXUP_SONY_MIC_NO_PRESENCE] = {
 		.type = HDA_FIXUP_PINS,
 		.v.pins = (const struct hda_pintbl[]) {
@@ -4953,6 +4971,12 @@ static const struct hda_fixup alc269_fix
 		.chain_id = ALC269_FIXUP_HEADSET_MODE
 	},
 	[ALC292_FIXUP_TPT440_DOCK] = {
+		.type = HDA_FIXUP_FUNC,
+		.v.func = alc269_fixup_pincfg_no_hp_to_lineout,
+		.chained = true,
+		.chain_id = ALC292_FIXUP_TPT440_DOCK2
+	},
+	[ALC292_FIXUP_TPT440_DOCK2] = {
 		.type = HDA_FIXUP_PINS,
 		.v.pins = (const struct hda_pintbl[]) {
 			{ 0x16, 0x21211010 }, /* dock headphone */
@@ -4980,7 +5004,7 @@ static const struct hda_fixup alc269_fix
 			{ 0x14, 0x90170110 },
 			{ 0x17, 0x40000008 },
 			{ 0x18, 0x411111f0 },
-			{ 0x19, 0x411111f0 },
+			{ 0x19, 0x01a1913c },
 			{ 0x1a, 0x411111f0 },
 			{ 0x1b, 0x411111f0 },
 			{ 0x1d, 0x40f89b2d },
@@ -5039,9 +5063,23 @@ static const struct hda_fixup alc269_fix
 		.chained = true,
 		.chain_id = ALC288_FIXUP_DELL1_MIC_NO_PRESENCE
 	},
+	[ALC288_FIXUP_DISABLE_AAMIX] = {
+		.type = HDA_FIXUP_FUNC,
+		.v.func = alc_fixup_disable_aamix,
+		.chained = true,
+		.chain_id = ALC288_FIXUP_DELL_XPS_13_GPIO6
+	},
+	[ALC288_FIXUP_DELL_XPS_13] = {
+		.type = HDA_FIXUP_FUNC,
+		.v.func = alc_fixup_dell_xps13,
+		.chained = true,
+		.chain_id = ALC288_FIXUP_DISABLE_AAMIX
+	},
 	[ALC292_FIXUP_DISABLE_AAMIX] = {
 		.type = HDA_FIXUP_FUNC,
 		.v.func = alc_fixup_disable_aamix,
+		.chained = true,
+		.chain_id = ALC269_FIXUP_DELL2_MIC_NO_PRESENCE
 	},
 	[ALC292_FIXUP_DELL_E7X] = {
 		.type = HDA_FIXUP_FUNC,
@@ -5056,6 +5094,8 @@ static const struct snd_pci_quirk alc269
 	SND_PCI_QUIRK(0x1025, 0x029b, "Acer 1810TZ", ALC269_FIXUP_INV_DMIC),
 	SND_PCI_QUIRK(0x1025, 0x0349, "Acer AOD260", ALC269_FIXUP_INV_DMIC),
 	SND_PCI_QUIRK(0x1025, 0x047c, "Acer AC700", ALC269_FIXUP_ACER_AC700),
+	SND_PCI_QUIRK(0x1025, 0x072d, "Acer Aspire V5-571G", ALC269_FIXUP_ASPIRE_HEADSET_MIC),
+	SND_PCI_QUIRK(0x1025, 0x080d, "Acer Aspire V5-122P", ALC269_FIXUP_ASPIRE_HEADSET_MIC),
 	SND_PCI_QUIRK(0x1025, 0x0740, "Acer AO725", ALC271_FIXUP_HP_GATE_MIC_JACK),
 	SND_PCI_QUIRK(0x1025, 0x0742, "Acer AO756", ALC271_FIXUP_HP_GATE_MIC_JACK),
 	SND_PCI_QUIRK(0x1025, 0x0775, "Acer Aspire E1-572", ALC271_FIXUP_HP_GATE_MIC_JACK_E1_572),
@@ -5069,13 +5109,16 @@ static const struct snd_pci_quirk alc269
 	SND_PCI_QUIRK(0x1028, 0x05f6, "Dell", ALC269_FIXUP_DELL1_MIC_NO_PRESENCE),
 	SND_PCI_QUIRK(0x1028, 0x0615, "Dell Vostro 5470", ALC290_FIXUP_SUBWOOFER_HSJACK),
 	SND_PCI_QUIRK(0x1028, 0x0616, "Dell Vostro 5470", ALC290_FIXUP_SUBWOOFER_HSJACK),
+	SND_PCI_QUIRK(0x1028, 0x062e, "Dell Latitude E7450", ALC292_FIXUP_DELL_E7X),
 	SND_PCI_QUIRK(0x1028, 0x0638, "Dell Inspiron 5439", ALC290_FIXUP_MONO_SPEAKERS_HSJACK),
 	SND_PCI_QUIRK(0x1028, 0x064a, "Dell", ALC293_FIXUP_DELL1_MIC_NO_PRESENCE),
 	SND_PCI_QUIRK(0x1028, 0x064b, "Dell", ALC293_FIXUP_DELL1_MIC_NO_PRESENCE),
-	SND_PCI_QUIRK(0x1028, 0x0665, "Dell XPS 13", ALC292_FIXUP_DELL_E7X),
+	SND_PCI_QUIRK(0x1028, 0x0665, "Dell XPS 13", ALC288_FIXUP_DELL_XPS_13),
+	SND_PCI_QUIRK(0x1028, 0x069a, "Dell Vostro 5480", ALC290_FIXUP_SUBWOOFER_HSJACK),
 	SND_PCI_QUIRK(0x1028, 0x06c7, "Dell", ALC255_FIXUP_DELL1_MIC_NO_PRESENCE),
 	SND_PCI_QUIRK(0x1028, 0x06d9, "Dell", ALC293_FIXUP_DELL1_MIC_NO_PRESENCE),
 	SND_PCI_QUIRK(0x1028, 0x06da, "Dell", ALC293_FIXUP_DELL1_MIC_NO_PRESENCE),
+	SND_PCI_QUIRK(0x1028, 0x06de, "Dell", ALC292_FIXUP_DISABLE_AAMIX),
 	SND_PCI_QUIRK(0x1028, 0x164a, "Dell", ALC293_FIXUP_DELL1_MIC_NO_PRESENCE),
 	SND_PCI_QUIRK(0x1028, 0x164b, "Dell", ALC293_FIXUP_DELL1_MIC_NO_PRESENCE),
 	SND_PCI_QUIRK(0x103c, 0x1586, "HP", ALC269_FIXUP_HP_MUTE_LED_MIC2),
@@ -5156,6 +5199,7 @@ static const struct snd_pci_quirk alc269
 	SND_PCI_QUIRK(0x104d, 0x9084, "Sony VAIO", ALC275_FIXUP_SONY_HWEQ),
 	SND_PCI_QUIRK(0x104d, 0x9099, "Sony VAIO S13", ALC275_FIXUP_SONY_DISABLE_AAMIX),
 	SND_PCI_QUIRK(0x10cf, 0x1475, "Lifebook", ALC269_FIXUP_LIFEBOOK),
+	SND_PCI_QUIRK(0x10cf, 0x159f, "Lifebook E780", ALC269_FIXUP_LIFEBOOK_NO_HP_TO_LINEOUT),
 	SND_PCI_QUIRK(0x10cf, 0x15dc, "Lifebook T731", ALC269_FIXUP_LIFEBOOK_HP_PIN),
 	SND_PCI_QUIRK(0x10cf, 0x1757, "Lifebook E752", ALC269_FIXUP_LIFEBOOK_HP_PIN),
 	SND_PCI_QUIRK(0x10cf, 0x1845, "Lifebook U904", ALC269_FIXUP_LIFEBOOK_EXTMIC),
@@ -5340,6 +5384,17 @@ static const struct snd_hda_pin_quirk al
 		{0x1d, 0x40700001},
 		{0x21, 0x02211030}),
 	SND_HDA_PIN_QUIRK(0x10ec0255, 0x1028, "Dell", ALC255_FIXUP_DELL1_MIC_NO_PRESENCE,
+		{0x12, 0x40000000},
+		{0x14, 0x90170130},
+		{0x17, 0x411111f0},
+		{0x18, 0x411111f0},
+		{0x19, 0x411111f0},
+		{0x1a, 0x411111f0},
+		{0x1b, 0x01014020},
+		{0x1d, 0x4054c029},
+		{0x1e, 0x411111f0},
+		{0x21, 0x0221103f}),
+	SND_HDA_PIN_QUIRK(0x10ec0255, 0x1028, "Dell", ALC255_FIXUP_DELL1_MIC_NO_PRESENCE,
 		{0x12, 0x90a60160},
 		{0x14, 0x90170120},
 		{0x17, 0x90170140},
diff -druNp --no-dereference linux-libre-4.1-gnu/sound/pci/hda/patch_sigmatel.c linux-libre-4.1.6-gnu/sound/pci/hda/patch_sigmatel.c
--- linux-libre-4.1-gnu/sound/pci/hda/patch_sigmatel.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/sound/pci/hda/patch_sigmatel.c	2015-08-16 23:52:51.000000000 -0400
@@ -2920,7 +2920,8 @@ static const struct snd_pci_quirk stac92
 	SND_PCI_QUIRK(PCI_VENDOR_ID_HP, 0x148a,
 		      "HP Mini", STAC_92HD83XXX_HP_LED),
 	SND_PCI_QUIRK_VENDOR(PCI_VENDOR_ID_HP, "HP", STAC_92HD83XXX_HP),
-	SND_PCI_QUIRK(PCI_VENDOR_ID_TOSHIBA, 0xfa91,
+	/* match both for 0xfa91 and 0xfa93 */
+	SND_PCI_QUIRK_MASK(PCI_VENDOR_ID_TOSHIBA, 0xfffd, 0xfa91,
 		      "Toshiba Satellite S50D", STAC_92HD83XXX_GPIO10_EAPD),
 	{} /* terminator */
 };
diff -druNp --no-dereference linux-libre-4.1-gnu/sound/pci/hda/patch_via.c linux-libre-4.1.6-gnu/sound/pci/hda/patch_via.c
--- linux-libre-4.1-gnu/sound/pci/hda/patch_via.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/sound/pci/hda/patch_via.c	2015-08-16 23:52:51.000000000 -0400
@@ -238,7 +238,9 @@ static int via_pin_power_ctl_get(struct
 				 struct snd_ctl_elem_value *ucontrol)
 {
 	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
-	ucontrol->value.enumerated.item[0] = codec->power_save_node;
+	struct via_spec *spec = codec->spec;
+
+	ucontrol->value.enumerated.item[0] = spec->gen.power_down_unused;
 	return 0;
 }
 
@@ -249,9 +251,9 @@ static int via_pin_power_ctl_put(struct
 	struct via_spec *spec = codec->spec;
 	bool val = !!ucontrol->value.enumerated.item[0];
 
-	if (val == codec->power_save_node)
+	if (val == spec->gen.power_down_unused)
 		return 0;
-	codec->power_save_node = val;
+	/* codec->power_save_node = val; */ /* widget PM seems yet broken */
 	spec->gen.power_down_unused = val;
 	analog_low_current_mode(codec);
 	return 1;
diff -druNp --no-dereference linux-libre-4.1-gnu/sound/soc/codecs/max98925.c linux-libre-4.1.6-gnu/sound/soc/codecs/max98925.c
--- linux-libre-4.1-gnu/sound/soc/codecs/max98925.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/sound/soc/codecs/max98925.c	2015-08-16 23:52:51.000000000 -0400
@@ -346,7 +346,7 @@ static int max98925_dai_set_fmt(struct s
 	}
 
 	regmap_update_bits(max98925->regmap, MAX98925_FORMAT,
-			M98925_DAI_BCI_MASK, invert);
+			M98925_DAI_BCI_MASK | M98925_DAI_WCI_MASK, invert);
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-4.1-gnu/sound/soc/codecs/pcm1681.c linux-libre-4.1.6-gnu/sound/soc/codecs/pcm1681.c
--- linux-libre-4.1-gnu/sound/soc/codecs/pcm1681.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/sound/soc/codecs/pcm1681.c	2015-08-16 23:52:51.000000000 -0400
@@ -102,7 +102,7 @@ static int pcm1681_set_deemph(struct snd
 
 	if (val != -1) {
 		regmap_update_bits(priv->regmap, PCM1681_DEEMPH_CONTROL,
-					PCM1681_DEEMPH_RATE_MASK, val);
+				   PCM1681_DEEMPH_RATE_MASK, val << 3);
 		enable = 1;
 	} else
 		enable = 0;
diff -druNp --no-dereference linux-libre-4.1-gnu/sound/soc/codecs/rt5645.c linux-libre-4.1.6-gnu/sound/soc/codecs/rt5645.c
--- linux-libre-4.1-gnu/sound/soc/codecs/rt5645.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/sound/soc/codecs/rt5645.c	2015-08-16 23:52:51.000000000 -0400
@@ -2837,6 +2837,8 @@ static int rt5645_i2c_probe(struct i2c_c
 		}
 	}
 
+	INIT_DELAYED_WORK(&rt5645->jack_detect_work, rt5645_jack_detect_work);
+
 	if (rt5645->i2c->irq) {
 		ret = request_threaded_irq(rt5645->i2c->irq, NULL, rt5645_irq,
 			IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING
@@ -2855,8 +2857,6 @@ static int rt5645_i2c_probe(struct i2c_c
 			dev_err(&i2c->dev, "Fail gpio_direction hp_det_gpio\n");
 	}
 
-	INIT_DELAYED_WORK(&rt5645->jack_detect_work, rt5645_jack_detect_work);
-
 	return snd_soc_register_codec(&i2c->dev, &soc_codec_dev_rt5645,
 				      rt5645_dai, ARRAY_SIZE(rt5645_dai));
 }
diff -druNp --no-dereference linux-libre-4.1-gnu/sound/soc/codecs/ssm4567.c linux-libre-4.1.6-gnu/sound/soc/codecs/ssm4567.c
--- linux-libre-4.1-gnu/sound/soc/codecs/ssm4567.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/sound/soc/codecs/ssm4567.c	2015-08-16 23:52:51.000000000 -0400
@@ -315,7 +315,13 @@ static int ssm4567_set_dai_fmt(struct sn
 	if (invert_fclk)
 		ctrl1 |= SSM4567_SAI_CTRL_1_FSYNC;
 
-	return regmap_write(ssm4567->regmap, SSM4567_REG_SAI_CTRL_1, ctrl1);
+	return regmap_update_bits(ssm4567->regmap, SSM4567_REG_SAI_CTRL_1,
+			SSM4567_SAI_CTRL_1_BCLK |
+			SSM4567_SAI_CTRL_1_FSYNC |
+			SSM4567_SAI_CTRL_1_LJ |
+			SSM4567_SAI_CTRL_1_TDM |
+			SSM4567_SAI_CTRL_1_PDM,
+			ctrl1);
 }
 
 static int ssm4567_set_power(struct ssm4567 *ssm4567, bool enable)
diff -druNp --no-dereference linux-libre-4.1-gnu/sound/soc/codecs/tas2552.c linux-libre-4.1.6-gnu/sound/soc/codecs/tas2552.c
--- linux-libre-4.1-gnu/sound/soc/codecs/tas2552.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/sound/soc/codecs/tas2552.c	2015-08-16 23:52:51.000000000 -0400
@@ -120,6 +120,9 @@ static void tas2552_sw_shutdown(struct t
 {
 	u8 cfg1_reg;
 
+	if (!tas_data->codec)
+		return;
+
 	if (sw_shutdown)
 		cfg1_reg = 0;
 	else
@@ -335,7 +338,6 @@ static DECLARE_TLV_DB_SCALE(dac_tlv, -7,
 static const struct snd_kcontrol_new tas2552_snd_controls[] = {
 	SOC_SINGLE_TLV("Speaker Driver Playback Volume",
 			 TAS2552_PGA_GAIN, 0, 0x1f, 1, dac_tlv),
-	SOC_DAPM_SINGLE("Playback AMP", SND_SOC_NOPM, 0, 1, 0),
 };
 
 static const struct reg_default tas2552_init_regs[] = {
diff -druNp --no-dereference linux-libre-4.1-gnu/sound/soc/codecs/wm5102.c linux-libre-4.1.6-gnu/sound/soc/codecs/wm5102.c
--- linux-libre-4.1-gnu/sound/soc/codecs/wm5102.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/sound/soc/codecs/wm5102.c	2015-08-16 23:52:51.000000000 -0400
@@ -42,7 +42,7 @@ struct wm5102_priv {
 static DECLARE_TLV_DB_SCALE(ana_tlv, 0, 100, 0);
 static DECLARE_TLV_DB_SCALE(eq_tlv, -1200, 100, 0);
 static DECLARE_TLV_DB_SCALE(digital_tlv, -6400, 50, 0);
-static DECLARE_TLV_DB_SCALE(noise_tlv, 0, 600, 0);
+static DECLARE_TLV_DB_SCALE(noise_tlv, -13200, 600, 0);
 static DECLARE_TLV_DB_SCALE(ng_tlv, -10200, 600, 0);
 
 static const struct wm_adsp_region wm5102_dsp1_regions[] = {
diff -druNp --no-dereference linux-libre-4.1-gnu/sound/soc/codecs/wm5110.c linux-libre-4.1.6-gnu/sound/soc/codecs/wm5110.c
--- linux-libre-4.1-gnu/sound/soc/codecs/wm5110.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/sound/soc/codecs/wm5110.c	2015-08-16 23:52:51.000000000 -0400
@@ -167,7 +167,7 @@ static int wm5110_sysclk_ev(struct snd_s
 static DECLARE_TLV_DB_SCALE(ana_tlv, 0, 100, 0);
 static DECLARE_TLV_DB_SCALE(eq_tlv, -1200, 100, 0);
 static DECLARE_TLV_DB_SCALE(digital_tlv, -6400, 50, 0);
-static DECLARE_TLV_DB_SCALE(noise_tlv, 0, 600, 0);
+static DECLARE_TLV_DB_SCALE(noise_tlv, -13200, 600, 0);
 static DECLARE_TLV_DB_SCALE(ng_tlv, -10200, 600, 0);
 
 #define WM5110_NG_SRC(name, base) \
diff -druNp --no-dereference linux-libre-4.1-gnu/sound/soc/codecs/wm8737.c linux-libre-4.1.6-gnu/sound/soc/codecs/wm8737.c
--- linux-libre-4.1-gnu/sound/soc/codecs/wm8737.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/sound/soc/codecs/wm8737.c	2015-08-16 23:52:51.000000000 -0400
@@ -483,7 +483,8 @@ static int wm8737_set_bias_level(struct
 
 			/* Fast VMID ramp at 2*2.5k */
 			snd_soc_update_bits(codec, WM8737_MISC_BIAS_CONTROL,
-					    WM8737_VMIDSEL_MASK, 0x4);
+					    WM8737_VMIDSEL_MASK,
+					    2 << WM8737_VMIDSEL_SHIFT);
 
 			/* Bring VMID up */
 			snd_soc_update_bits(codec, WM8737_POWER_MANAGEMENT,
@@ -497,7 +498,8 @@ static int wm8737_set_bias_level(struct
 
 		/* VMID at 2*300k */
 		snd_soc_update_bits(codec, WM8737_MISC_BIAS_CONTROL,
-				    WM8737_VMIDSEL_MASK, 2);
+				    WM8737_VMIDSEL_MASK,
+				    1 << WM8737_VMIDSEL_SHIFT);
 
 		break;
 
diff -druNp --no-dereference linux-libre-4.1-gnu/sound/soc/codecs/wm8903.h linux-libre-4.1.6-gnu/sound/soc/codecs/wm8903.h
--- linux-libre-4.1-gnu/sound/soc/codecs/wm8903.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/sound/soc/codecs/wm8903.h	2015-08-16 23:52:51.000000000 -0400
@@ -172,7 +172,7 @@ extern int wm8903_mic_detect(struct snd_
 #define WM8903_VMID_BUF_ENA_WIDTH                    1  /* VMID_BUF_ENA */
 
 #define WM8903_VMID_RES_50K                          2
-#define WM8903_VMID_RES_250K                         3
+#define WM8903_VMID_RES_250K                         4
 #define WM8903_VMID_RES_5K                           6
 
 /*
diff -druNp --no-dereference linux-libre-4.1-gnu/sound/soc/codecs/wm8955.c linux-libre-4.1.6-gnu/sound/soc/codecs/wm8955.c
--- linux-libre-4.1-gnu/sound/soc/codecs/wm8955.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/sound/soc/codecs/wm8955.c	2015-08-16 23:52:51.000000000 -0400
@@ -298,7 +298,7 @@ static int wm8955_configure_clocking(str
 		snd_soc_update_bits(codec, WM8955_PLL_CONTROL_2,
 				    WM8955_K_17_9_MASK,
 				    (pll.k >> 9) & WM8955_K_17_9_MASK);
-		snd_soc_update_bits(codec, WM8955_PLL_CONTROL_2,
+		snd_soc_update_bits(codec, WM8955_PLL_CONTROL_3,
 				    WM8955_K_8_0_MASK,
 				    pll.k & WM8955_K_8_0_MASK);
 		if (pll.k)
diff -druNp --no-dereference linux-libre-4.1-gnu/sound/soc/codecs/wm8960.c linux-libre-4.1.6-gnu/sound/soc/codecs/wm8960.c
--- linux-libre-4.1-gnu/sound/soc/codecs/wm8960.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/sound/soc/codecs/wm8960.c	2015-08-16 23:52:51.000000000 -0400
@@ -245,7 +245,7 @@ SOC_SINGLE("PCM Playback -6dB Switch", W
 SOC_ENUM("ADC Polarity", wm8960_enum[0]),
 SOC_SINGLE("ADC High Pass Filter Switch", WM8960_DACCTL1, 0, 1, 0),
 
-SOC_ENUM("DAC Polarity", wm8960_enum[2]),
+SOC_ENUM("DAC Polarity", wm8960_enum[1]),
 SOC_SINGLE_BOOL_EXT("DAC Deemphasis Switch", 0,
 		    wm8960_get_deemph, wm8960_put_deemph),
 
diff -druNp --no-dereference linux-libre-4.1-gnu/sound/soc/codecs/wm8997.c linux-libre-4.1.6-gnu/sound/soc/codecs/wm8997.c
--- linux-libre-4.1-gnu/sound/soc/codecs/wm8997.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/sound/soc/codecs/wm8997.c	2015-08-16 23:52:51.000000000 -0400
@@ -40,7 +40,7 @@ struct wm8997_priv {
 static DECLARE_TLV_DB_SCALE(ana_tlv, 0, 100, 0);
 static DECLARE_TLV_DB_SCALE(eq_tlv, -1200, 100, 0);
 static DECLARE_TLV_DB_SCALE(digital_tlv, -6400, 50, 0);
-static DECLARE_TLV_DB_SCALE(noise_tlv, 0, 600, 0);
+static DECLARE_TLV_DB_SCALE(noise_tlv, -13200, 600, 0);
 static DECLARE_TLV_DB_SCALE(ng_tlv, -10200, 600, 0);
 
 static const struct reg_default wm8997_sysclk_reva_patch[] = {
diff -druNp --no-dereference linux-libre-4.1-gnu/sound/soc/fsl/imx-wm8962.c linux-libre-4.1.6-gnu/sound/soc/fsl/imx-wm8962.c
--- linux-libre-4.1-gnu/sound/soc/fsl/imx-wm8962.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/sound/soc/fsl/imx-wm8962.c	2015-08-16 23:52:51.000000000 -0400
@@ -190,7 +190,7 @@ static int imx_wm8962_probe(struct platf
 		dev_err(&pdev->dev, "audmux internal port setup failed\n");
 		return ret;
 	}
-	imx_audmux_v2_configure_port(ext_port,
+	ret = imx_audmux_v2_configure_port(ext_port,
 			IMX_AUDMUX_V2_PTCR_SYN,
 			IMX_AUDMUX_V2_PDCR_RXDSEL(int_port));
 	if (ret) {
diff -druNp --no-dereference linux-libre-4.1-gnu/sound/soc/intel/atom/sst/sst_drv_interface.c linux-libre-4.1.6-gnu/sound/soc/intel/atom/sst/sst_drv_interface.c
--- linux-libre-4.1-gnu/sound/soc/intel/atom/sst/sst_drv_interface.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/sound/soc/intel/atom/sst/sst_drv_interface.c	2015-08-16 23:52:51.000000000 -0400
@@ -42,6 +42,11 @@
 #define MIN_FRAGMENT_SIZE (50 * 1024)
 #define MAX_FRAGMENT_SIZE (1024 * 1024)
 #define SST_GET_BYTES_PER_SAMPLE(pcm_wd_sz)  (((pcm_wd_sz + 15) >> 4) << 1)
+#ifdef CONFIG_PM
+#define GET_USAGE_COUNT(dev) (atomic_read(&dev->power.usage_count))
+#else
+#define GET_USAGE_COUNT(dev) 1
+#endif
 
 int free_stream_context(struct intel_sst_drv *ctx, unsigned int str_id)
 {
@@ -141,15 +146,9 @@ static int sst_power_control(struct devi
 	int ret = 0;
 	int usage_count = 0;
 
-#ifdef CONFIG_PM
-	usage_count = atomic_read(&dev->power.usage_count);
-#else
-	usage_count = 1;
-#endif
-
 	if (state == true) {
 		ret = pm_runtime_get_sync(dev);
-
+		usage_count = GET_USAGE_COUNT(dev);
 		dev_dbg(ctx->dev, "Enable: pm usage count: %d\n", usage_count);
 		if (ret < 0) {
 			dev_err(ctx->dev, "Runtime get failed with err: %d\n", ret);
@@ -164,6 +163,7 @@ static int sst_power_control(struct devi
 			}
 		}
 	} else {
+		usage_count = GET_USAGE_COUNT(dev);
 		dev_dbg(ctx->dev, "Disable: pm usage count: %d\n", usage_count);
 		return sst_pm_runtime_put(ctx);
 	}
diff -druNp --no-dereference linux-libre-4.1-gnu/sound/soc/omap/Kconfig linux-libre-4.1.6-gnu/sound/soc/omap/Kconfig
--- linux-libre-4.1-gnu/sound/soc/omap/Kconfig	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/sound/soc/omap/Kconfig	2015-08-16 23:52:51.000000000 -0400
@@ -100,12 +100,13 @@ config SND_OMAP_SOC_OMAP_TWL4030
 
 config SND_OMAP_SOC_OMAP_ABE_TWL6040
 	tristate "SoC Audio support for OMAP boards using ABE and twl6040 codec"
-	depends on TWL6040_CORE && SND_OMAP_SOC && (ARCH_OMAP4 || SOC_OMAP5 || COMPILE_TEST)
+	depends on TWL6040_CORE && SND_OMAP_SOC
+	depends on ARCH_OMAP4 || (SOC_OMAP5 && MFD_PALMAS) || COMPILE_TEST
 	select SND_OMAP_SOC_DMIC
 	select SND_OMAP_SOC_MCPDM
 	select SND_SOC_TWL6040
 	select SND_SOC_DMIC
-	select COMMON_CLK_PALMAS if MFD_PALMAS
+	select COMMON_CLK_PALMAS if (SOC_OMAP5 && MFD_PALMAS)
 	help
 	  Say Y if you want to add support for SoC audio on OMAP boards using
 	  ABE and twl6040 codec. This driver currently supports:
diff -druNp --no-dereference linux-libre-4.1-gnu/sound/soc/qcom/Kconfig linux-libre-4.1.6-gnu/sound/soc/qcom/Kconfig
--- linux-libre-4.1-gnu/sound/soc/qcom/Kconfig	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/sound/soc/qcom/Kconfig	2015-08-16 23:52:51.000000000 -0400
@@ -6,12 +6,10 @@ config SND_SOC_QCOM
 
 config SND_SOC_LPASS_CPU
 	tristate
-	depends on SND_SOC_QCOM
 	select REGMAP_MMIO
 
 config SND_SOC_LPASS_PLATFORM
 	tristate
-	depends on SND_SOC_QCOM
 	select REGMAP_MMIO
 
 config SND_SOC_STORM
diff -druNp --no-dereference linux-libre-4.1-gnu/sound/soc/soc-dapm.c linux-libre-4.1.6-gnu/sound/soc/soc-dapm.c
--- linux-libre-4.1-gnu/sound/soc/soc-dapm.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/sound/soc/soc-dapm.c	2015-08-16 23:52:51.000000000 -0400
@@ -1811,6 +1811,7 @@ static ssize_t dapm_widget_power_read_fi
 					   size_t count, loff_t *ppos)
 {
 	struct snd_soc_dapm_widget *w = file->private_data;
+	struct snd_soc_card *card = w->dapm->card;
 	char *buf;
 	int in, out;
 	ssize_t ret;
@@ -1820,6 +1821,8 @@ static ssize_t dapm_widget_power_read_fi
 	if (!buf)
 		return -ENOMEM;
 
+	mutex_lock(&card->dapm_mutex);
+
 	/* Supply widgets are not handled by is_connected_{input,output}_ep() */
 	if (w->is_supply) {
 		in = 0;
@@ -1866,6 +1869,8 @@ static ssize_t dapm_widget_power_read_fi
 					p->sink->name);
 	}
 
+	mutex_unlock(&card->dapm_mutex);
+
 	ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret);
 
 	kfree(buf);
@@ -2140,11 +2145,15 @@ static ssize_t dapm_widget_show(struct d
 	struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev);
 	int i, count = 0;
 
+	mutex_lock(&rtd->card->dapm_mutex);
+
 	for (i = 0; i < rtd->num_codecs; i++) {
 		struct snd_soc_codec *codec = rtd->codec_dais[i]->codec;
 		count += dapm_widget_show_codec(codec, buf + count);
 	}
 
+	mutex_unlock(&rtd->card->dapm_mutex);
+
 	return count;
 }
 
@@ -3100,16 +3109,10 @@ snd_soc_dapm_new_control(struct snd_soc_
 	}
 
 	prefix = soc_dapm_prefix(dapm);
-	if (prefix) {
+	if (prefix)
 		w->name = kasprintf(GFP_KERNEL, "%s %s", prefix, widget->name);
-		if (widget->sname)
-			w->sname = kasprintf(GFP_KERNEL, "%s %s", prefix,
-					     widget->sname);
-	} else {
+	else
 		w->name = kasprintf(GFP_KERNEL, "%s", widget->name);
-		if (widget->sname)
-			w->sname = kasprintf(GFP_KERNEL, "%s", widget->sname);
-	}
 	if (w->name == NULL) {
 		kfree(w);
 		return NULL;
@@ -3557,7 +3560,7 @@ int snd_soc_dapm_link_dai_widgets(struct
 				break;
 			}
 
-			if (!w->sname || !strstr(w->sname, dai_w->name))
+			if (!w->sname || !strstr(w->sname, dai_w->sname))
 				continue;
 
 			if (dai_w->id == snd_soc_dapm_dai_in) {
diff -druNp --no-dereference linux-libre-4.1-gnu/sound/usb/line6/pcm.c linux-libre-4.1.6-gnu/sound/usb/line6/pcm.c
--- linux-libre-4.1-gnu/sound/usb/line6/pcm.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/sound/usb/line6/pcm.c	2015-08-16 23:52:51.000000000 -0400
@@ -186,12 +186,8 @@ static int line6_stream_start(struct snd
 	int ret = 0;
 
 	spin_lock_irqsave(&pstr->lock, flags);
-	if (!test_and_set_bit(type, &pstr->running)) {
-		if (pstr->active_urbs || pstr->unlink_urbs) {
-			ret = -EBUSY;
-			goto error;
-		}
-
+	if (!test_and_set_bit(type, &pstr->running) &&
+	    !(pstr->active_urbs || pstr->unlink_urbs)) {
 		pstr->count = 0;
 		/* Submit all currently available URBs */
 		if (direction == SNDRV_PCM_STREAM_PLAYBACK)
@@ -199,7 +195,6 @@ static int line6_stream_start(struct snd
 		else
 			ret = line6_submit_audio_in_all_urbs(line6pcm);
 	}
- error:
 	if (ret < 0)
 		clear_bit(type, &pstr->running);
 	spin_unlock_irqrestore(&pstr->lock, flags);
diff -druNp --no-dereference linux-libre-4.1-gnu/sound/usb/mixer_maps.c linux-libre-4.1.6-gnu/sound/usb/mixer_maps.c
--- linux-libre-4.1-gnu/sound/usb/mixer_maps.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/sound/usb/mixer_maps.c	2015-08-16 23:52:51.000000000 -0400
@@ -341,6 +341,20 @@ static const struct usbmix_name_map scms
 	{ 0 }
 };
 
+/* Bose companion 5, the dB conversion factor is 16 instead of 256 */
+static struct usbmix_dB_map bose_companion5_dB = {-5006, -6};
+static struct usbmix_name_map bose_companion5_map[] = {
+	{ 3, NULL, .dB = &bose_companion5_dB },
+	{ 0 }	/* terminator */
+};
+
+/* Dragonfly DAC 1.2, the dB conversion factor is 1 instead of 256 */
+static struct usbmix_dB_map dragonfly_1_2_dB = {0, 5000};
+static struct usbmix_name_map dragonfly_1_2_map[] = {
+	{ 7, NULL, .dB = &dragonfly_1_2_dB },
+	{ 0 }	/* terminator */
+};
+
 /*
  * Control map entries
  */
@@ -451,6 +465,16 @@ static struct usbmix_ctl_map usbmix_ctl_
 		.id = USB_ID(0x25c4, 0x0003),
 		.map = scms_usb3318_map,
 	},
+	{
+		/* Bose Companion 5 */
+		.id = USB_ID(0x05a7, 0x1020),
+		.map = bose_companion5_map,
+	},
+	{
+		/* Dragonfly DAC 1.2 */
+		.id = USB_ID(0x21b4, 0x0081),
+		.map = dragonfly_1_2_map,
+	},
 	{ 0 } /* terminator */
 };
 
diff -druNp --no-dereference linux-libre-4.1-gnu/sound/usb/quirks-table.h linux-libre-4.1.6-gnu/sound/usb/quirks-table.h
--- linux-libre-4.1-gnu/sound/usb/quirks-table.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/sound/usb/quirks-table.h	2015-08-16 23:52:51.000000000 -0400
@@ -2512,6 +2512,74 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 	}
 },
 
+/* Steinberg devices */
+{
+	/* Steinberg MI2 */
+	USB_DEVICE_VENDOR_SPEC(0x0a4e, 0x2040),
+	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
+		.ifnum = QUIRK_ANY_INTERFACE,
+		.type = QUIRK_COMPOSITE,
+		.data = & (const struct snd_usb_audio_quirk[]) {
+			{
+				.ifnum = 0,
+				.type = QUIRK_AUDIO_STANDARD_INTERFACE
+			},
+			{
+				.ifnum = 1,
+				.type = QUIRK_AUDIO_STANDARD_INTERFACE
+			},
+			{
+				.ifnum = 2,
+				.type = QUIRK_AUDIO_STANDARD_INTERFACE
+			},
+			{
+				.ifnum = 3,
+				.type = QUIRK_MIDI_FIXED_ENDPOINT,
+				.data = &(const struct snd_usb_midi_endpoint_info) {
+					.out_cables = 0x0001,
+					.in_cables  = 0x0001
+				}
+			},
+			{
+				.ifnum = -1
+			}
+		}
+	}
+},
+{
+	/* Steinberg MI4 */
+	USB_DEVICE_VENDOR_SPEC(0x0a4e, 0x4040),
+	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
+		.ifnum = QUIRK_ANY_INTERFACE,
+		.type = QUIRK_COMPOSITE,
+		.data = & (const struct snd_usb_audio_quirk[]) {
+			{
+				.ifnum = 0,
+				.type = QUIRK_AUDIO_STANDARD_INTERFACE
+			},
+			{
+				.ifnum = 1,
+				.type = QUIRK_AUDIO_STANDARD_INTERFACE
+			},
+			{
+				.ifnum = 2,
+				.type = QUIRK_AUDIO_STANDARD_INTERFACE
+			},
+			{
+				.ifnum = 3,
+				.type = QUIRK_MIDI_FIXED_ENDPOINT,
+				.data = &(const struct snd_usb_midi_endpoint_info) {
+					.out_cables = 0x0001,
+					.in_cables  = 0x0001
+				}
+			},
+			{
+				.ifnum = -1
+			}
+		}
+	}
+},
+
 /* TerraTec devices */
 {
 	USB_DEVICE_VENDOR_SPEC(0x0ccd, 0x0012),
diff -druNp --no-dereference linux-libre-4.1-gnu/tools/build/Makefile.build linux-libre-4.1.6-gnu/tools/build/Makefile.build
--- linux-libre-4.1-gnu/tools/build/Makefile.build	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/tools/build/Makefile.build	2015-08-16 23:52:51.000000000 -0400
@@ -94,12 +94,12 @@ obj-y        := $(patsubst %/, %/$(obj)-
 subdir-obj-y := $(filter %/$(obj)-in.o, $(obj-y))
 
 # '$(OUTPUT)/dir' prefix to all objects
-prefix       := $(subst ./,,$(OUTPUT)$(dir)/)
-obj-y        := $(addprefix $(prefix),$(obj-y))
-subdir-obj-y := $(addprefix $(prefix),$(subdir-obj-y))
+objprefix    := $(subst ./,,$(OUTPUT)$(dir)/)
+obj-y        := $(addprefix $(objprefix),$(obj-y))
+subdir-obj-y := $(addprefix $(objprefix),$(subdir-obj-y))
 
 # Final '$(obj)-in.o' object
-in-target := $(prefix)$(obj)-in.o
+in-target := $(objprefix)$(obj)-in.o
 
 PHONY += $(subdir-y)
 
diff -druNp --no-dereference linux-libre-4.1-gnu/tools/perf/ui/browsers/hists.c linux-libre-4.1.6-gnu/tools/perf/ui/browsers/hists.c
--- linux-libre-4.1-gnu/tools/perf/ui/browsers/hists.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/tools/perf/ui/browsers/hists.c	2015-08-16 23:52:51.000000000 -0400
@@ -45,7 +45,7 @@ static struct rb_node *hists__filter_ent
 
 static bool hist_browser__has_filter(struct hist_browser *hb)
 {
-	return hists__has_filter(hb->hists) || hb->min_pcnt;
+	return hists__has_filter(hb->hists) || hb->min_pcnt || symbol_conf.has_filter;
 }
 
 static int hist_browser__get_folding(struct hist_browser *browser)
diff -druNp --no-dereference linux-libre-4.1-gnu/tools/perf/util/cloexec.c linux-libre-4.1.6-gnu/tools/perf/util/cloexec.c
--- linux-libre-4.1-gnu/tools/perf/util/cloexec.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/tools/perf/util/cloexec.c	2015-08-16 23:52:51.000000000 -0400
@@ -7,11 +7,15 @@
 
 static unsigned long flag = PERF_FLAG_FD_CLOEXEC;
 
+#ifdef __GLIBC_PREREQ
+#if !__GLIBC_PREREQ(2, 6)
 int __weak sched_getcpu(void)
 {
 	errno = ENOSYS;
 	return -1;
 }
+#endif
+#endif
 
 static int perf_flag_probe(void)
 {
diff -druNp --no-dereference linux-libre-4.1-gnu/tools/perf/util/symbol.c linux-libre-4.1.6-gnu/tools/perf/util/symbol.c
--- linux-libre-4.1-gnu/tools/perf/util/symbol.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/tools/perf/util/symbol.c	2015-08-16 23:52:51.000000000 -0400
@@ -1893,6 +1893,8 @@ int setup_intlist(struct intlist **list,
 		pr_err("problems parsing %s list\n", list_name);
 		return -1;
 	}
+
+	symbol_conf.has_filter = true;
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-4.1-gnu/tools/perf/util/symbol.h linux-libre-4.1.6-gnu/tools/perf/util/symbol.h
--- linux-libre-4.1-gnu/tools/perf/util/symbol.h	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/tools/perf/util/symbol.h	2015-08-16 23:52:51.000000000 -0400
@@ -105,7 +105,8 @@ struct symbol_conf {
 			demangle_kernel,
 			filter_relative,
 			show_hist_headers,
-			branch_callstack;
+			branch_callstack,
+			has_filter;
 	const char	*vmlinux_name,
 			*kallsyms_name,
 			*source_prefix,
diff -druNp --no-dereference linux-libre-4.1-gnu/tools/testing/selftests/Makefile linux-libre-4.1.6-gnu/tools/testing/selftests/Makefile
--- linux-libre-4.1-gnu/tools/testing/selftests/Makefile	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/tools/testing/selftests/Makefile	2015-08-16 23:52:51.000000000 -0400
@@ -27,7 +27,7 @@ TARGETS_HOTPLUG += memory-hotplug
 # Makefile to avoid test build failures when test
 # Makefile doesn't have explicit build rules.
 ifeq (1,$(MAKELEVEL))
-undefine LDFLAGS
+override LDFLAGS =
 override MAKEFLAGS =
 endif
 
diff -druNp --no-dereference linux-libre-4.1-gnu/virt/kvm/arm/vgic.c linux-libre-4.1.6-gnu/virt/kvm/arm/vgic.c
--- linux-libre-4.1-gnu/virt/kvm/arm/vgic.c	2015-06-22 01:05:43.000000000 -0400
+++ linux-libre-4.1.6-gnu/virt/kvm/arm/vgic.c	2015-08-16 23:52:51.000000000 -0400
@@ -1561,7 +1561,7 @@ int kvm_vgic_inject_irq(struct kvm *kvm,
 			goto out;
 	}
 
-	if (irq_num >= kvm->arch.vgic.nr_irqs)
+	if (irq_num >= min(kvm->arch.vgic.nr_irqs, 1020))
 		return -EINVAL;
 
 	vcpu_id = vgic_update_irq_pending(kvm, cpuid, irq_num, level);
@@ -2161,10 +2161,7 @@ int kvm_set_irq(struct kvm *kvm, int irq
 
 	BUG_ON(!vgic_initialized(kvm));
 
-	if (spi > kvm->arch.vgic.nr_irqs)
-		return -EINVAL;
 	return kvm_vgic_inject_irq(kvm, 0, spi, level);
-
 }
 
 /* MSI not implemented yet */
