[gentoo-commits] proj/linux-patches:4.1 commit in: /

[Mike Pagano]

commit:     4635b6f052c8eab94dec6e8fbb7dbbc8905f83eb
Author:     Mike Pagano <mpagano <AT> gentoo <DOT> org>
AuthorDate: Wed Oct 12 19:52:44 2016 +0000
Commit:     Mike Pagano <mpagano <AT> gentoo <DOT> org>
CommitDate: Wed Oct 12 19:52:44 2016 +0000
URL:        https://gitweb.gentoo.org/proj/linux-patches.git/commit/?id=4635b6f0

Linux patch 4.1.34

 0000_README             |    4 +
 1033_linux-4.1.34.patch | 3255 +++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 3259 insertions(+)

diff --git a/0000_README b/0000_README
index 9a2fbfa..72df015 100644
--- a/0000_README
+++ b/0000_README
@@ -175,6 +175,10 @@ Patch:  1032_linux-4.1.33.patch
 From:   http://www.kernel.org
 Desc:   Linux 4.1.33
 
+Patch:  1033_linux-4.1.34.patch
+From:   http://www.kernel.org
+Desc:   Linux 4.1.34
+
 Patch:  1500_XATTR_USER_PREFIX.patch
 From:   https://bugs.gentoo.org/show_bug.cgi?id=470644
 Desc:   Support for namespace user.pax.* on tmpfs.

diff --git a/1033_linux-4.1.34.patch b/1033_linux-4.1.34.patch
new file mode 100644
index 0000000..fffc6fa
--- /dev/null
+++ b/1033_linux-4.1.34.patch
@@ -0,0 +1,3255 @@
+diff --git a/Makefile b/Makefile
+index 47c47d7c0926..2d4dea4b3107 100644
+--- a/Makefile
++++ b/Makefile
+@@ -1,6 +1,6 @@
+ VERSION = 4
+ PATCHLEVEL = 1
+-SUBLEVEL = 33
++SUBLEVEL = 34
+ EXTRAVERSION =
+ NAME = Series 4800
+ 
+diff --git a/arch/alpha/include/asm/uaccess.h b/arch/alpha/include/asm/uaccess.h
+index 9b0d40093c9a..c0ddbbf73400 100644
+--- a/arch/alpha/include/asm/uaccess.h
++++ b/arch/alpha/include/asm/uaccess.h
+@@ -371,14 +371,6 @@ __copy_tofrom_user_nocheck(void *to, const void *from, long len)
+ 	return __cu_len;
+ }
+ 
+-extern inline long
+-__copy_tofrom_user(void *to, const void *from, long len, const void __user *validate)
+-{
+-	if (__access_ok((unsigned long)validate, len, get_fs()))
+-		len = __copy_tofrom_user_nocheck(to, from, len);
+-	return len;
+-}
+-
+ #define __copy_to_user(to, from, n)					\
+ ({									\
+ 	__chk_user_ptr(to);						\
+@@ -393,17 +385,22 @@ __copy_tofrom_user(void *to, const void *from, long len, const void __user *vali
+ #define __copy_to_user_inatomic __copy_to_user
+ #define __copy_from_user_inatomic __copy_from_user
+ 
+-
+ extern inline long
+ copy_to_user(void __user *to, const void *from, long n)
+ {
+-	return __copy_tofrom_user((__force void *)to, from, n, to);
++	if (likely(__access_ok((unsigned long)to, n, get_fs())))
++		n = __copy_tofrom_user_nocheck((__force void *)to, from, n);
++	return n;
+ }
+ 
+ extern inline long
+ copy_from_user(void *to, const void __user *from, long n)
+ {
+-	return __copy_tofrom_user(to, (__force void *)from, n, from);
++	if (likely(__access_ok((unsigned long)from, n, get_fs())))
++		n = __copy_tofrom_user_nocheck(to, (__force void *)from, n);
++	else
++		memset(to, 0, n);
++	return n;
+ }
+ 
+ extern void __do_clear_user(void);
+diff --git a/arch/arc/include/asm/uaccess.h b/arch/arc/include/asm/uaccess.h
+index 30c9baffa96f..08770c750696 100644
+--- a/arch/arc/include/asm/uaccess.h
++++ b/arch/arc/include/asm/uaccess.h
+@@ -83,7 +83,10 @@
+ 	"2:	;nop\n"				\
+ 	"	.section .fixup, \"ax\"\n"	\
+ 	"	.align 4\n"			\
+-	"3:	mov %0, %3\n"			\
++	"3:	# return -EFAULT\n"		\
++	"	mov %0, %3\n"			\
++	"	# zero out dst ptr\n"		\
++	"	mov %1,  0\n"			\
+ 	"	j   2b\n"			\
+ 	"	.previous\n"			\
+ 	"	.section __ex_table, \"a\"\n"	\
+@@ -101,7 +104,11 @@
+ 	"2:	;nop\n"				\
+ 	"	.section .fixup, \"ax\"\n"	\
+ 	"	.align 4\n"			\
+-	"3:	mov %0, %3\n"			\
++	"3:	# return -EFAULT\n"		\
++	"	mov %0, %3\n"			\
++	"	# zero out dst ptr\n"		\
++	"	mov %1,  0\n"			\
++	"	mov %R1, 0\n"			\
+ 	"	j   2b\n"			\
+ 	"	.previous\n"			\
+ 	"	.section __ex_table, \"a\"\n"	\
+diff --git a/arch/arm/boot/dts/kirkwood-ib62x0.dts b/arch/arm/boot/dts/kirkwood-ib62x0.dts
+index bfa5edde179c..2c1e7f09205f 100644
+--- a/arch/arm/boot/dts/kirkwood-ib62x0.dts
++++ b/arch/arm/boot/dts/kirkwood-ib62x0.dts
+@@ -113,7 +113,7 @@
+ 
+ 	partition@e0000 {
+ 		label = "u-boot environment";
+-		reg = <0xe0000 0x100000>;
++		reg = <0xe0000 0x20000>;
+ 	};
+ 
+ 	partition@100000 {
+diff --git a/arch/arm/boot/dts/stih410.dtsi b/arch/arm/boot/dts/stih410.dtsi
+index 208b5e89036a..f7b2c8defe56 100644
+--- a/arch/arm/boot/dts/stih410.dtsi
++++ b/arch/arm/boot/dts/stih410.dtsi
+@@ -33,7 +33,8 @@
+ 			compatible = "st,st-ohci-300x";
+ 			reg = <0x9a03c00 0x100>;
+ 			interrupts = <GIC_SPI 180 IRQ_TYPE_NONE>;
+-			clocks = <&clk_s_c0_flexgen CLK_TX_ICN_DISP_0>;
++			clocks = <&clk_s_c0_flexgen CLK_TX_ICN_DISP_0>,
++				 <&clk_s_c0_flexgen CLK_RX_ICN_DISP_0>;
+ 			resets = <&powerdown STIH407_USB2_PORT0_POWERDOWN>,
+ 				 <&softreset STIH407_USB2_PORT0_SOFTRESET>;
+ 			reset-names = "power", "softreset";
+@@ -47,7 +48,8 @@
+ 			interrupts = <GIC_SPI 151 IRQ_TYPE_NONE>;
+ 			pinctrl-names = "default";
+ 			pinctrl-0 = <&pinctrl_usb0>;
+-			clocks = <&clk_s_c0_flexgen CLK_TX_ICN_DISP_0>;
++			clocks = <&clk_s_c0_flexgen CLK_TX_ICN_DISP_0>,
++				 <&clk_s_c0_flexgen CLK_RX_ICN_DISP_0>;
+ 			resets = <&powerdown STIH407_USB2_PORT0_POWERDOWN>,
+ 				 <&softreset STIH407_USB2_PORT0_SOFTRESET>;
+ 			reset-names = "power", "softreset";
+@@ -59,7 +61,8 @@
+ 			compatible = "st,st-ohci-300x";
+ 			reg = <0x9a83c00 0x100>;
+ 			interrupts = <GIC_SPI 181 IRQ_TYPE_NONE>;
+-			clocks = <&clk_s_c0_flexgen CLK_TX_ICN_DISP_0>;
++			clocks = <&clk_s_c0_flexgen CLK_TX_ICN_DISP_0>,
++				 <&clk_s_c0_flexgen CLK_RX_ICN_DISP_0>;
+ 			resets = <&powerdown STIH407_USB2_PORT1_POWERDOWN>,
+ 				 <&softreset STIH407_USB2_PORT1_SOFTRESET>;
+ 			reset-names = "power", "softreset";
+@@ -73,7 +76,8 @@
+ 			interrupts = <GIC_SPI 153 IRQ_TYPE_NONE>;
+ 			pinctrl-names = "default";
+ 			pinctrl-0 = <&pinctrl_usb1>;
+-			clocks = <&clk_s_c0_flexgen CLK_TX_ICN_DISP_0>;
++			clocks = <&clk_s_c0_flexgen CLK_TX_ICN_DISP_0>,
++				 <&clk_s_c0_flexgen CLK_RX_ICN_DISP_0>;
+ 			resets = <&powerdown STIH407_USB2_PORT1_POWERDOWN>,
+ 				 <&softreset STIH407_USB2_PORT1_SOFTRESET>;
+ 			reset-names = "power", "softreset";
+diff --git a/arch/arm/crypto/aes-ce-glue.c b/arch/arm/crypto/aes-ce-glue.c
+index b445a5d56f43..593da7ffb449 100644
+--- a/arch/arm/crypto/aes-ce-glue.c
++++ b/arch/arm/crypto/aes-ce-glue.c
+@@ -279,7 +279,7 @@ static int ctr_encrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
+ 		err = blkcipher_walk_done(desc, &walk,
+ 					  walk.nbytes % AES_BLOCK_SIZE);
+ 	}
+-	if (nbytes) {
++	if (walk.nbytes % AES_BLOCK_SIZE) {
+ 		u8 *tdst = walk.dst.virt.addr + blocks * AES_BLOCK_SIZE;
+ 		u8 *tsrc = walk.src.virt.addr + blocks * AES_BLOCK_SIZE;
+ 		u8 __aligned(8) tail[AES_BLOCK_SIZE];
+diff --git a/arch/arm/kvm/arm.c b/arch/arm/kvm/arm.c
+index 5414081c0bbf..87b2663a5564 100644
+--- a/arch/arm/kvm/arm.c
++++ b/arch/arm/kvm/arm.c
+@@ -154,8 +154,6 @@ void kvm_arch_destroy_vm(struct kvm *kvm)
+ {
+ 	int i;
+ 
+-	kvm_free_stage2_pgd(kvm);
+-
+ 	for (i = 0; i < KVM_MAX_VCPUS; ++i) {
+ 		if (kvm->vcpus[i]) {
+ 			kvm_arch_vcpu_free(kvm->vcpus[i]);
+diff --git a/arch/arm/kvm/mmu.c b/arch/arm/kvm/mmu.c
+index 691ea94897fd..a33af44230da 100644
+--- a/arch/arm/kvm/mmu.c
++++ b/arch/arm/kvm/mmu.c
+@@ -1850,6 +1850,7 @@ void kvm_arch_memslots_updated(struct kvm *kvm)
+ 
+ void kvm_arch_flush_shadow_all(struct kvm *kvm)
+ {
++	kvm_free_stage2_pgd(kvm);
+ }
+ 
+ void kvm_arch_flush_shadow_memslot(struct kvm *kvm,
+diff --git a/arch/arm/mach-imx/pm-imx6.c b/arch/arm/mach-imx/pm-imx6.c
+index 6a7c6fc780cc..4627c862beac 100644
+--- a/arch/arm/mach-imx/pm-imx6.c
++++ b/arch/arm/mach-imx/pm-imx6.c
+@@ -288,7 +288,7 @@ int imx6q_set_lpm(enum mxc_cpu_pwr_mode mode)
+ 		val |= 0x3 << BP_CLPCR_STBY_COUNT;
+ 		val |= BM_CLPCR_VSTBY;
+ 		val |= BM_CLPCR_SBYOS;
+-		if (cpu_is_imx6sl())
++		if (cpu_is_imx6sl() || cpu_is_imx6sx())
+ 			val |= BM_CLPCR_BYPASS_PMIC_READY;
+ 		if (cpu_is_imx6sl() || cpu_is_imx6sx())
+ 			val |= BM_CLPCR_BYP_MMDC_CH0_LPM_HS;
+diff --git a/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c b/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c
+index 4e8e93c398db..808c8e59000d 100644
+--- a/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c
++++ b/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c
+@@ -724,8 +724,20 @@ static struct omap_hwmod omap3xxx_dss_dispc_hwmod = {
+  * display serial interface controller
+  */
+ 
++static struct omap_hwmod_class_sysconfig omap3xxx_dsi_sysc = {
++	.rev_offs	= 0x0000,
++	.sysc_offs	= 0x0010,
++	.syss_offs	= 0x0014,
++	.sysc_flags	= (SYSC_HAS_AUTOIDLE | SYSC_HAS_CLOCKACTIVITY |
++			   SYSC_HAS_ENAWAKEUP | SYSC_HAS_SIDLEMODE |
++			   SYSC_HAS_SOFTRESET | SYSS_HAS_RESET_STATUS),
++	.idlemodes	= (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART),
++	.sysc_fields	= &omap_hwmod_sysc_type1,
++};
++
+ static struct omap_hwmod_class omap3xxx_dsi_hwmod_class = {
+ 	.name = "dsi",
++	.sysc	= &omap3xxx_dsi_sysc,
+ };
+ 
+ static struct omap_hwmod_irq_info omap3xxx_dsi1_irqs[] = {
+diff --git a/arch/arm64/crypto/aes-glue.c b/arch/arm64/crypto/aes-glue.c
+index 05d9e16c0dfd..6a51dfccfe71 100644
+--- a/arch/arm64/crypto/aes-glue.c
++++ b/arch/arm64/crypto/aes-glue.c
+@@ -211,7 +211,7 @@ static int ctr_encrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
+ 		err = blkcipher_walk_done(desc, &walk,
+ 					  walk.nbytes % AES_BLOCK_SIZE);
+ 	}
+-	if (nbytes) {
++	if (walk.nbytes % AES_BLOCK_SIZE) {
+ 		u8 *tdst = walk.dst.virt.addr + blocks * AES_BLOCK_SIZE;
+ 		u8 *tsrc = walk.src.virt.addr + blocks * AES_BLOCK_SIZE;
+ 		u8 __aligned(8) tail[AES_BLOCK_SIZE];
+diff --git a/arch/arm64/include/asm/spinlock.h b/arch/arm64/include/asm/spinlock.h
+index cee128732435..d155a9bbfab6 100644
+--- a/arch/arm64/include/asm/spinlock.h
++++ b/arch/arm64/include/asm/spinlock.h
+@@ -231,4 +231,14 @@ static inline int arch_read_trylock(arch_rwlock_t *rw)
+ #define arch_read_relax(lock)	cpu_relax()
+ #define arch_write_relax(lock)	cpu_relax()
+ 
++/*
++ * Accesses appearing in program order before a spin_lock() operation
++ * can be reordered with accesses inside the critical section, by virtue
++ * of arch_spin_lock being constructed using acquire semantics.
++ *
++ * In cases where this is problematic (e.g. try_to_wake_up), an
++ * smp_mb__before_spinlock() can restore the required ordering.
++ */
++#define smp_mb__before_spinlock()	smp_mb()
++
+ #endif /* __ASM_SPINLOCK_H */
+diff --git a/arch/avr32/include/asm/uaccess.h b/arch/avr32/include/asm/uaccess.h
+index a46f7cf3e1ea..20b52c40bcd2 100644
+--- a/arch/avr32/include/asm/uaccess.h
++++ b/arch/avr32/include/asm/uaccess.h
+@@ -74,7 +74,7 @@ extern __kernel_size_t __copy_user(void *to, const void *from,
+ 
+ extern __kernel_size_t copy_to_user(void __user *to, const void *from,
+ 				    __kernel_size_t n);
+-extern __kernel_size_t copy_from_user(void *to, const void __user *from,
++extern __kernel_size_t ___copy_from_user(void *to, const void __user *from,
+ 				      __kernel_size_t n);
+ 
+ static inline __kernel_size_t __copy_to_user(void __user *to, const void *from,
+@@ -88,6 +88,15 @@ static inline __kernel_size_t __copy_from_user(void *to,
+ {
+ 	return __copy_user(to, (const void __force *)from, n);
+ }
++static inline __kernel_size_t copy_from_user(void *to,
++					       const void __user *from,
++					       __kernel_size_t n)
++{
++	size_t res = ___copy_from_user(to, from, n);
++	if (unlikely(res))
++		memset(to + (n - res), 0, res);
++	return res;
++}
+ 
+ #define __copy_to_user_inatomic __copy_to_user
+ #define __copy_from_user_inatomic __copy_from_user
+diff --git a/arch/avr32/kernel/avr32_ksyms.c b/arch/avr32/kernel/avr32_ksyms.c
+index d93ead02daed..7c6cf14f0985 100644
+--- a/arch/avr32/kernel/avr32_ksyms.c
++++ b/arch/avr32/kernel/avr32_ksyms.c
+@@ -36,7 +36,7 @@ EXPORT_SYMBOL(copy_page);
+ /*
+  * Userspace access stuff.
+  */
+-EXPORT_SYMBOL(copy_from_user);
++EXPORT_SYMBOL(___copy_from_user);
+ EXPORT_SYMBOL(copy_to_user);
+ EXPORT_SYMBOL(__copy_user);
+ EXPORT_SYMBOL(strncpy_from_user);
+diff --git a/arch/avr32/lib/copy_user.S b/arch/avr32/lib/copy_user.S
+index ea59c04b07de..075373471da1 100644
+--- a/arch/avr32/lib/copy_user.S
++++ b/arch/avr32/lib/copy_user.S
+@@ -23,13 +23,13 @@
+ 	 */
+ 	.text
+ 	.align	1
+-	.global	copy_from_user
+-	.type	copy_from_user, @function
+-copy_from_user:
++	.global	___copy_from_user
++	.type	___copy_from_user, @function
++___copy_from_user:
+ 	branch_if_kernel r8, __copy_user
+ 	ret_if_privileged r8, r11, r10, r10
+ 	rjmp	__copy_user
+-	.size	copy_from_user, . - copy_from_user
++	.size	___copy_from_user, . - ___copy_from_user
+ 
+ 	.global	copy_to_user
+ 	.type	copy_to_user, @function
+diff --git a/arch/blackfin/include/asm/uaccess.h b/arch/blackfin/include/asm/uaccess.h
+index 90612a7f2cf3..8cd0184ea9ef 100644
+--- a/arch/blackfin/include/asm/uaccess.h
++++ b/arch/blackfin/include/asm/uaccess.h
+@@ -177,11 +177,12 @@ static inline int bad_user_access_length(void)
+ static inline unsigned long __must_check
+ copy_from_user(void *to, const void __user *from, unsigned long n)
+ {
+-	if (access_ok(VERIFY_READ, from, n))
++	if (likely(access_ok(VERIFY_READ, from, n))) {
+ 		memcpy(to, (const void __force *)from, n);
+-	else
+-		return n;
+-	return 0;
++		return 0;
++	}
++	memset(to, 0, n);
++	return n;
+ }
+ 
+ static inline unsigned long __must_check
+diff --git a/arch/cris/include/asm/uaccess.h b/arch/cris/include/asm/uaccess.h
+index e3530d0f13ee..56c7d5750abd 100644
+--- a/arch/cris/include/asm/uaccess.h
++++ b/arch/cris/include/asm/uaccess.h
+@@ -194,30 +194,6 @@ extern unsigned long __copy_user(void __user *to, const void *from, unsigned lon
+ extern unsigned long __copy_user_zeroing(void *to, const void __user *from, unsigned long n);
+ extern unsigned long __do_clear_user(void __user *to, unsigned long n);
+ 
+-static inline unsigned long
+-__generic_copy_to_user(void __user *to, const void *from, unsigned long n)
+-{
+-	if (access_ok(VERIFY_WRITE, to, n))
+-		return __copy_user(to, from, n);
+-	return n;
+-}
+-
+-static inline unsigned long
+-__generic_copy_from_user(void *to, const void __user *from, unsigned long n)
+-{
+-	if (access_ok(VERIFY_READ, from, n))
+-		return __copy_user_zeroing(to, from, n);
+-	return n;
+-}
+-
+-static inline unsigned long
+-__generic_clear_user(void __user *to, unsigned long n)
+-{
+-	if (access_ok(VERIFY_WRITE, to, n))
+-		return __do_clear_user(to, n);
+-	return n;
+-}
+-
+ static inline long
+ __strncpy_from_user(char *dst, const char __user *src, long count)
+ {
+@@ -282,7 +258,7 @@ __constant_copy_from_user(void *to, const void __user *from, unsigned long n)
+ 	else if (n == 24)
+ 		__asm_copy_from_user_24(to, from, ret);
+ 	else
+-		ret = __generic_copy_from_user(to, from, n);
++		ret = __copy_user_zeroing(to, from, n);
+ 
+ 	return ret;
+ }
+@@ -333,7 +309,7 @@ __constant_copy_to_user(void __user *to, const void *from, unsigned long n)
+ 	else if (n == 24)
+ 		__asm_copy_to_user_24(to, from, ret);
+ 	else
+-		ret = __generic_copy_to_user(to, from, n);
++		ret = __copy_user(to, from, n);
+ 
+ 	return ret;
+ }
+@@ -366,26 +342,43 @@ __constant_clear_user(void __user *to, unsigned long n)
+ 	else if (n == 24)
+ 		__asm_clear_24(to, ret);
+ 	else
+-		ret = __generic_clear_user(to, n);
++		ret = __do_clear_user(to, n);
+ 
+ 	return ret;
+ }
+ 
+ 
+-#define clear_user(to, n)				\
+-	(__builtin_constant_p(n) ?			\
+-	 __constant_clear_user(to, n) :			\
+-	 __generic_clear_user(to, n))
++static inline size_t clear_user(void __user *to, size_t n)
++{
++	if (unlikely(!access_ok(VERIFY_WRITE, to, n)))
++		return n;
++	if (__builtin_constant_p(n))
++		return __constant_clear_user(to, n);
++	else
++		return __do_clear_user(to, n);
++}
+ 
+-#define copy_from_user(to, from, n)			\
+-	(__builtin_constant_p(n) ?			\
+-	 __constant_copy_from_user(to, from, n) :	\
+-	 __generic_copy_from_user(to, from, n))
++static inline size_t copy_from_user(void *to, const void __user *from, size_t n)
++{
++	if (unlikely(!access_ok(VERIFY_READ, from, n))) {
++		memset(to, 0, n);
++		return n;
++	}
++	if (__builtin_constant_p(n))
++		return __constant_copy_from_user(to, from, n);
++	else
++		return __copy_user_zeroing(to, from, n);
++}
+ 
+-#define copy_to_user(to, from, n)			\
+-	(__builtin_constant_p(n) ?			\
+-	 __constant_copy_to_user(to, from, n) :		\
+-	 __generic_copy_to_user(to, from, n))
++static inline size_t copy_to_user(void __user *to, const void *from, size_t n)
++{
++	if (unlikely(!access_ok(VERIFY_WRITE, to, n)))
++		return n;
++	if (__builtin_constant_p(n))
++		return __constant_copy_to_user(to, from, n);
++	else
++		return __copy_user(to, from, n);
++}
+ 
+ /* We let the __ versions of copy_from/to_user inline, because they're often
+  * used in fast paths and have only a small space overhead.
+diff --git a/arch/frv/include/asm/uaccess.h b/arch/frv/include/asm/uaccess.h
+index 3ac9a59d65d4..87d9e34c5df8 100644
+--- a/arch/frv/include/asm/uaccess.h
++++ b/arch/frv/include/asm/uaccess.h
+@@ -263,19 +263,25 @@ do {							\
+ extern long __memset_user(void *dst, unsigned long count);
+ extern long __memcpy_user(void *dst, const void *src, unsigned long count);
+ 
+-#define clear_user(dst,count)			__memset_user(____force(dst), (count))
++#define __clear_user(dst,count)			__memset_user(____force(dst), (count))
+ #define __copy_from_user_inatomic(to, from, n)	__memcpy_user((to), ____force(from), (n))
+ #define __copy_to_user_inatomic(to, from, n)	__memcpy_user(____force(to), (from), (n))
+ 
+ #else
+ 
+-#define clear_user(dst,count)			(memset(____force(dst), 0, (count)), 0)
++#define __clear_user(dst,count)			(memset(____force(dst), 0, (count)), 0)
+ #define __copy_from_user_inatomic(to, from, n)	(memcpy((to), ____force(from), (n)), 0)
+ #define __copy_to_user_inatomic(to, from, n)	(memcpy(____force(to), (from), (n)), 0)
+ 
+ #endif
+ 
+-#define __clear_user clear_user
++static inline unsigned long __must_check
++clear_user(void __user *to, unsigned long n)
++{
++	if (likely(__access_ok(to, n)))
++		n = __clear_user(to, n);
++	return n;
++}
+ 
+ static inline unsigned long __must_check
+ __copy_to_user(void __user *to, const void *from, unsigned long n)
+diff --git a/arch/hexagon/include/asm/uaccess.h b/arch/hexagon/include/asm/uaccess.h
+index e4127e4d6a5b..25fc9049db8a 100644
+--- a/arch/hexagon/include/asm/uaccess.h
++++ b/arch/hexagon/include/asm/uaccess.h
+@@ -102,7 +102,8 @@ static inline long hexagon_strncpy_from_user(char *dst, const char __user *src,
+ {
+ 	long res = __strnlen_user(src, n);
+ 
+-	/* return from strnlen can't be zero -- that would be rubbish. */
++	if (unlikely(!res))
++		return -EFAULT;
+ 
+ 	if (res > n) {
+ 		copy_from_user(dst, src, n);
+diff --git a/arch/ia64/include/asm/uaccess.h b/arch/ia64/include/asm/uaccess.h
+index 4f3fb6ccbf21..40c2027a2bf4 100644
+--- a/arch/ia64/include/asm/uaccess.h
++++ b/arch/ia64/include/asm/uaccess.h
+@@ -263,17 +263,15 @@ __copy_from_user (void *to, const void __user *from, unsigned long count)
+ 	__cu_len;									\
+ })
+ 
+-#define copy_from_user(to, from, n)							\
+-({											\
+-	void *__cu_to = (to);								\
+-	const void __user *__cu_from = (from);						\
+-	long __cu_len = (n);								\
+-											\
+-	__chk_user_ptr(__cu_from);							\
+-	if (__access_ok(__cu_from, __cu_len, get_fs()))					\
+-		__cu_len = __copy_user((__force void __user *) __cu_to, __cu_from, __cu_len);	\
+-	__cu_len;									\
+-})
++static inline unsigned long
++copy_from_user(void *to, const void __user *from, unsigned long n)
++{
++	if (likely(__access_ok(from, n, get_fs())))
++		n = __copy_user((__force void __user *) to, from, n);
++	else
++		memset(to, 0, n);
++	return n;
++}
+ 
+ #define __copy_in_user(to, from, size)	__copy_user((to), (from), (size))
+ 
+diff --git a/arch/m32r/include/asm/uaccess.h b/arch/m32r/include/asm/uaccess.h
+index 71adff209405..c66a38d0a895 100644
+--- a/arch/m32r/include/asm/uaccess.h
++++ b/arch/m32r/include/asm/uaccess.h
+@@ -215,7 +215,7 @@ extern int fixup_exception(struct pt_regs *regs);
+ #define __get_user_nocheck(x, ptr, size)				\
+ ({									\
+ 	long __gu_err = 0;						\
+-	unsigned long __gu_val;						\
++	unsigned long __gu_val = 0;					\
+ 	might_fault();							\
+ 	__get_user_size(__gu_val, (ptr), (size), __gu_err);		\
+ 	(x) = (__force __typeof__(*(ptr)))__gu_val;			\
+diff --git a/arch/metag/include/asm/uaccess.h b/arch/metag/include/asm/uaccess.h
+index 8282cbce7e39..273e61225c27 100644
+--- a/arch/metag/include/asm/uaccess.h
++++ b/arch/metag/include/asm/uaccess.h
+@@ -204,8 +204,9 @@ extern unsigned long __must_check __copy_user_zeroing(void *to,
+ static inline unsigned long
+ copy_from_user(void *to, const void __user *from, unsigned long n)
+ {
+-	if (access_ok(VERIFY_READ, from, n))
++	if (likely(access_ok(VERIFY_READ, from, n)))
+ 		return __copy_user_zeroing(to, from, n);
++	memset(to, 0, n);
+ 	return n;
+ }
+ 
+diff --git a/arch/microblaze/include/asm/uaccess.h b/arch/microblaze/include/asm/uaccess.h
+index 62942fd12672..0c0a5cfbf79a 100644
+--- a/arch/microblaze/include/asm/uaccess.h
++++ b/arch/microblaze/include/asm/uaccess.h
+@@ -226,7 +226,7 @@ extern long __user_bad(void);
+ 
+ #define __get_user(x, ptr)						\
+ ({									\
+-	unsigned long __gu_val;						\
++	unsigned long __gu_val = 0;					\
+ 	/*unsigned long __gu_ptr = (unsigned long)(ptr);*/		\
+ 	long __gu_err;							\
+ 	switch (sizeof(*(ptr))) {					\
+@@ -371,10 +371,13 @@ extern long __user_bad(void);
+ static inline long copy_from_user(void *to,
+ 		const void __user *from, unsigned long n)
+ {
++	unsigned long res = n;
+ 	might_fault();
+-	if (access_ok(VERIFY_READ, from, n))
+-		return __copy_from_user(to, from, n);
+-	return n;
++	if (likely(access_ok(VERIFY_READ, from, n)))
++		res = __copy_from_user(to, from, n);
++	if (unlikely(res))
++		memset(to + (n - res), 0, res);
++	return res;
+ }
+ 
+ #define __copy_to_user(to, from, n)	\
+diff --git a/arch/mips/include/asm/asmmacro.h b/arch/mips/include/asm/asmmacro.h
+index 6156ac8c4cfb..ab49b14a4be0 100644
+--- a/arch/mips/include/asm/asmmacro.h
++++ b/arch/mips/include/asm/asmmacro.h
+@@ -135,6 +135,7 @@
+ 	ldc1	$f28, THREAD_FPR28(\thread)
+ 	ldc1	$f30, THREAD_FPR30(\thread)
+ 	ctc1	\tmp, fcr31
++	.set	pop
+ 	.endm
+ 
+ 	.macro	fpu_restore_16odd thread
+diff --git a/arch/mips/include/asm/mach-paravirt/kernel-entry-init.h b/arch/mips/include/asm/mach-paravirt/kernel-entry-init.h
+index 2f82bfa3a773..c9f5769dfc8f 100644
+--- a/arch/mips/include/asm/mach-paravirt/kernel-entry-init.h
++++ b/arch/mips/include/asm/mach-paravirt/kernel-entry-init.h
+@@ -11,11 +11,13 @@
+ #define CP0_EBASE $15, 1
+ 
+ 	.macro  kernel_entry_setup
++#ifdef CONFIG_SMP
+ 	mfc0	t0, CP0_EBASE
+ 	andi	t0, t0, 0x3ff		# CPUNum
+ 	beqz	t0, 1f
+ 	# CPUs other than zero goto smp_bootstrap
+ 	j	smp_bootstrap
++#endif /* CONFIG_SMP */
+ 
+ 1:
+ 	.endm
+diff --git a/arch/mips/include/asm/uaccess.h b/arch/mips/include/asm/uaccess.h
+index bf8b32450ef6..bc2f5164ce51 100644
+--- a/arch/mips/include/asm/uaccess.h
++++ b/arch/mips/include/asm/uaccess.h
+@@ -14,6 +14,7 @@
+ #include <linux/kernel.h>
+ #include <linux/errno.h>
+ #include <linux/thread_info.h>
++#include <linux/string.h>
+ #include <asm/asm-eva.h>
+ 
+ /*
+@@ -1136,6 +1137,8 @@ extern size_t __copy_in_user_eva(void *__to, const void *__from, size_t __n);
+ 			__cu_len = __invoke_copy_from_user(__cu_to,	\
+ 							   __cu_from,	\
+ 							   __cu_len);   \
++		} else {						\
++			memset(__cu_to, 0, __cu_len);			\
+ 		}							\
+ 	}								\
+ 	__cu_len;							\
+diff --git a/arch/mips/kernel/mips-r2-to-r6-emul.c b/arch/mips/kernel/mips-r2-to-r6-emul.c
+index e19fa363c8fe..488e50dd2fe6 100644
+--- a/arch/mips/kernel/mips-r2-to-r6-emul.c
++++ b/arch/mips/kernel/mips-r2-to-r6-emul.c
+@@ -1163,7 +1163,9 @@ fpu_emul:
+ 		regs->regs[31] = r31;
+ 		regs->cp0_epc = epc;
+ 		if (!used_math()) {     /* First time FPU user.  */
++			preempt_disable();
+ 			err = init_fpu();
++			preempt_enable();
+ 			set_used_math();
+ 		}
+ 		lose_fpu(1);    /* Save FPU state for the emulator. */
+diff --git a/arch/mips/kernel/process.c b/arch/mips/kernel/process.c
+index 89847bee2b53..44a6f25e902e 100644
+--- a/arch/mips/kernel/process.c
++++ b/arch/mips/kernel/process.c
+@@ -593,14 +593,14 @@ int mips_set_process_fp_mode(struct task_struct *task, unsigned int value)
+ 		return -EOPNOTSUPP;
+ 
+ 	/* Avoid inadvertently triggering emulation */
+-	if ((value & PR_FP_MODE_FR) && cpu_has_fpu &&
+-	    !(current_cpu_data.fpu_id & MIPS_FPIR_F64))
++	if ((value & PR_FP_MODE_FR) && raw_cpu_has_fpu &&
++	    !(raw_current_cpu_data.fpu_id & MIPS_FPIR_F64))
+ 		return -EOPNOTSUPP;
+-	if ((value & PR_FP_MODE_FRE) && cpu_has_fpu && !cpu_has_fre)
++	if ((value & PR_FP_MODE_FRE) && raw_cpu_has_fpu && !cpu_has_fre)
+ 		return -EOPNOTSUPP;
+ 
+ 	/* FR = 0 not supported in MIPS R6 */
+-	if (!(value & PR_FP_MODE_FR) && cpu_has_fpu && cpu_has_mips_r6)
++	if (!(value & PR_FP_MODE_FR) && raw_cpu_has_fpu && cpu_has_mips_r6)
+ 		return -EOPNOTSUPP;
+ 
+ 	/* Proceed with the mode switch */
+diff --git a/arch/mips/kernel/smp.c b/arch/mips/kernel/smp.c
+index 3cef551908f4..a0268f61cd57 100644
+--- a/arch/mips/kernel/smp.c
++++ b/arch/mips/kernel/smp.c
+@@ -172,6 +172,9 @@ asmlinkage void start_secondary(void)
+ 	cpumask_set_cpu(cpu, &cpu_coherent_mask);
+ 	notify_cpu_starting(cpu);
+ 
++	cpumask_set_cpu(cpu, &cpu_callin_map);
++	synchronise_count_slave(cpu);
++
+ 	set_cpu_online(cpu, true);
+ 
+ 	set_cpu_sibling_map(cpu);
+@@ -179,10 +182,6 @@ asmlinkage void start_secondary(void)
+ 
+ 	calculate_cpu_foreign_map();
+ 
+-	cpumask_set_cpu(cpu, &cpu_callin_map);
+-
+-	synchronise_count_slave(cpu);
+-
+ 	/*
+ 	 * irq will be enabled in ->smp_finish(), enabling it too early
+ 	 * is dangerous.
+diff --git a/arch/mips/kvm/tlb.c b/arch/mips/kvm/tlb.c
+index 7a7ed9ca01bb..eff71c75dc27 100644
+--- a/arch/mips/kvm/tlb.c
++++ b/arch/mips/kvm/tlb.c
+@@ -152,7 +152,7 @@ static int kvm_mips_map_page(struct kvm *kvm, gfn_t gfn)
+ 	srcu_idx = srcu_read_lock(&kvm->srcu);
+ 	pfn = kvm_mips_gfn_to_pfn(kvm, gfn);
+ 
+-	if (kvm_mips_is_error_pfn(pfn)) {
++	if (is_error_noslot_pfn(pfn)) {
+ 		kvm_err("Couldn't get pfn for gfn %#" PRIx64 "!\n", gfn);
+ 		err = -EFAULT;
+ 		goto out;
+diff --git a/arch/mn10300/include/asm/uaccess.h b/arch/mn10300/include/asm/uaccess.h
+index 537278746a15..4af43d9ba495 100644
+--- a/arch/mn10300/include/asm/uaccess.h
++++ b/arch/mn10300/include/asm/uaccess.h
+@@ -181,6 +181,7 @@ struct __large_struct { unsigned long buf[100]; };
+ 		"2:\n"						\
+ 		"	.section	.fixup,\"ax\"\n"	\
+ 		"3:\n\t"					\
++		"	mov		0,%1\n"			\
+ 		"	mov		%3,%0\n"		\
+ 		"	jmp		2b\n"			\
+ 		"	.previous\n"				\
+diff --git a/arch/mn10300/lib/usercopy.c b/arch/mn10300/lib/usercopy.c
+index 7826e6c364e7..ce8899e5e171 100644
+--- a/arch/mn10300/lib/usercopy.c
++++ b/arch/mn10300/lib/usercopy.c
+@@ -9,7 +9,7 @@
+  * as published by the Free Software Foundation; either version
+  * 2 of the Licence, or (at your option) any later version.
+  */
+-#include <asm/uaccess.h>
++#include <linux/uaccess.h>
+ 
+ unsigned long
+ __generic_copy_to_user(void *to, const void *from, unsigned long n)
+@@ -24,6 +24,8 @@ __generic_copy_from_user(void *to, const void *from, unsigned long n)
+ {
+ 	if (access_ok(VERIFY_READ, from, n))
+ 		__copy_user_zeroing(to, from, n);
++	else
++		memset(to, 0, n);
+ 	return n;
+ }
+ 
+diff --git a/arch/nios2/include/asm/uaccess.h b/arch/nios2/include/asm/uaccess.h
+index caa51ff85a3c..0ab82324c817 100644
+--- a/arch/nios2/include/asm/uaccess.h
++++ b/arch/nios2/include/asm/uaccess.h
+@@ -102,9 +102,12 @@ extern long __copy_to_user(void __user *to, const void *from, unsigned long n);
+ static inline long copy_from_user(void *to, const void __user *from,
+ 				unsigned long n)
+ {
+-	if (!access_ok(VERIFY_READ, from, n))
+-		return n;
+-	return __copy_from_user(to, from, n);
++	unsigned long res = n;
++	if (access_ok(VERIFY_READ, from, n))
++		res = __copy_from_user(to, from, n);
++	if (unlikely(res))
++		memset(to + (n - res), 0, res);
++	return res;
+ }
+ 
+ static inline long copy_to_user(void __user *to, const void *from,
+@@ -139,7 +142,7 @@ extern long strnlen_user(const char __user *s, long n);
+ 
+ #define __get_user_unknown(val, size, ptr, err) do {			\
+ 	err = 0;							\
+-	if (copy_from_user(&(val), ptr, size)) {			\
++	if (__copy_from_user(&(val), ptr, size)) {			\
+ 		err = -EFAULT;						\
+ 	}								\
+ 	} while (0)
+@@ -166,7 +169,7 @@ do {									\
+ 	({								\
+ 	long __gu_err = -EFAULT;					\
+ 	const __typeof__(*(ptr)) __user *__gu_ptr = (ptr);		\
+-	unsigned long __gu_val;						\
++	unsigned long __gu_val = 0;					\
+ 	__get_user_common(__gu_val, sizeof(*(ptr)), __gu_ptr, __gu_err);\
+ 	(x) = (__force __typeof__(x))__gu_val;				\
+ 	__gu_err;							\
+diff --git a/arch/openrisc/include/asm/uaccess.h b/arch/openrisc/include/asm/uaccess.h
+index a6bd07ca3d6c..5cc6b4f1b795 100644
+--- a/arch/openrisc/include/asm/uaccess.h
++++ b/arch/openrisc/include/asm/uaccess.h
+@@ -273,28 +273,20 @@ __copy_tofrom_user(void *to, const void *from, unsigned long size);
+ static inline unsigned long
+ copy_from_user(void *to, const void *from, unsigned long n)
+ {
+-	unsigned long over;
+-
+-	if (access_ok(VERIFY_READ, from, n))
+-		return __copy_tofrom_user(to, from, n);
+-	if ((unsigned long)from < TASK_SIZE) {
+-		over = (unsigned long)from + n - TASK_SIZE;
+-		return __copy_tofrom_user(to, from, n - over) + over;
+-	}
+-	return n;
++	unsigned long res = n;
++
++	if (likely(access_ok(VERIFY_READ, from, n)))
++		res = __copy_tofrom_user(to, from, n);
++	if (unlikely(res))
++		memset(to + (n - res), 0, res);
++	return res;
+ }
+ 
+ static inline unsigned long
+ copy_to_user(void *to, const void *from, unsigned long n)
+ {
+-	unsigned long over;
+-
+-	if (access_ok(VERIFY_WRITE, to, n))
+-		return __copy_tofrom_user(to, from, n);
+-	if ((unsigned long)to < TASK_SIZE) {
+-		over = (unsigned long)to + n - TASK_SIZE;
+-		return __copy_tofrom_user(to, from, n - over) + over;
+-	}
++	if (likely(access_ok(VERIFY_WRITE, to, n)))
++		n = __copy_tofrom_user(to, from, n);
+ 	return n;
+ }
+ 
+@@ -303,13 +295,8 @@ extern unsigned long __clear_user(void *addr, unsigned long size);
+ static inline __must_check unsigned long
+ clear_user(void *addr, unsigned long size)
+ {
+-
+-	if (access_ok(VERIFY_WRITE, addr, size))
+-		return __clear_user(addr, size);
+-	if ((unsigned long)addr < TASK_SIZE) {
+-		unsigned long over = (unsigned long)addr + size - TASK_SIZE;
+-		return __clear_user(addr, size - over) + over;
+-	}
++	if (likely(access_ok(VERIFY_WRITE, addr, size)))
++		size = __clear_user(addr, size);
+ 	return size;
+ }
+ 
+diff --git a/arch/parisc/include/asm/uaccess.h b/arch/parisc/include/asm/uaccess.h
+index 1960b87c1c8b..4ad51465890b 100644
+--- a/arch/parisc/include/asm/uaccess.h
++++ b/arch/parisc/include/asm/uaccess.h
+@@ -10,6 +10,7 @@
+ #include <asm-generic/uaccess-unaligned.h>
+ 
+ #include <linux/bug.h>
++#include <linux/string.h>
+ 
+ #define VERIFY_READ 0
+ #define VERIFY_WRITE 1
+@@ -245,13 +246,14 @@ static inline unsigned long __must_check copy_from_user(void *to,
+                                           unsigned long n)
+ {
+         int sz = __compiletime_object_size(to);
+-        int ret = -EFAULT;
++        unsigned long ret = n;
+ 
+         if (likely(sz == -1 || !__builtin_constant_p(n) || sz >= n))
+                 ret = __copy_from_user(to, from, n);
+         else
+                 copy_from_user_overflow();
+-
++	if (unlikely(ret))
++		memset(to + (n - ret), 0, ret);
+         return ret;
+ }
+ 
+diff --git a/arch/powerpc/include/asm/uaccess.h b/arch/powerpc/include/asm/uaccess.h
+index a0c071d24e0e..6fbea25d8c78 100644
+--- a/arch/powerpc/include/asm/uaccess.h
++++ b/arch/powerpc/include/asm/uaccess.h
+@@ -323,30 +323,17 @@ extern unsigned long __copy_tofrom_user(void __user *to,
+ static inline unsigned long copy_from_user(void *to,
+ 		const void __user *from, unsigned long n)
+ {
+-	unsigned long over;
+-
+-	if (access_ok(VERIFY_READ, from, n))
++	if (likely(access_ok(VERIFY_READ, from, n)))
+ 		return __copy_tofrom_user((__force void __user *)to, from, n);
+-	if ((unsigned long)from < TASK_SIZE) {
+-		over = (unsigned long)from + n - TASK_SIZE;
+-		return __copy_tofrom_user((__force void __user *)to, from,
+-				n - over) + over;
+-	}
++	memset(to, 0, n);
+ 	return n;
+ }
+ 
+ static inline unsigned long copy_to_user(void __user *to,
+ 		const void *from, unsigned long n)
+ {
+-	unsigned long over;
+-
+ 	if (access_ok(VERIFY_WRITE, to, n))
+ 		return __copy_tofrom_user(to, (__force void __user *)from, n);
+-	if ((unsigned long)to < TASK_SIZE) {
+-		over = (unsigned long)to + n - TASK_SIZE;
+-		return __copy_tofrom_user(to, (__force void __user *)from,
+-				n - over) + over;
+-	}
+ 	return n;
+ }
+ 
+@@ -437,10 +424,6 @@ static inline unsigned long clear_user(void __user *addr, unsigned long size)
+ 	might_fault();
+ 	if (likely(access_ok(VERIFY_WRITE, addr, size)))
+ 		return __clear_user(addr, size);
+-	if ((unsigned long)addr < TASK_SIZE) {
+-		unsigned long over = (unsigned long)addr + size - TASK_SIZE;
+-		return __clear_user(addr, size - over) + over;
+-	}
+ 	return size;
+ }
+ 
+diff --git a/arch/powerpc/mm/slb_low.S b/arch/powerpc/mm/slb_low.S
+index 736d18b3cefd..4c48b487698c 100644
+--- a/arch/powerpc/mm/slb_low.S
++++ b/arch/powerpc/mm/slb_low.S
+@@ -113,7 +113,12 @@ BEGIN_FTR_SECTION
+ END_MMU_FTR_SECTION_IFCLR(MMU_FTR_1T_SEGMENT)
+ 	b	slb_finish_load_1T
+ 
+-0:
++0:	/*
++	 * For userspace addresses, make sure this is region 0.
++	 */
++	cmpdi	r9, 0
++	bne	8f
++
+ 	/* when using slices, we extract the psize off the slice bitmaps
+ 	 * and then we need to get the sllp encoding off the mmu_psize_defs
+ 	 * array.
+diff --git a/arch/s390/include/asm/uaccess.h b/arch/s390/include/asm/uaccess.h
+index d64a7a62164f..f6ac1d7e7ed8 100644
+--- a/arch/s390/include/asm/uaccess.h
++++ b/arch/s390/include/asm/uaccess.h
+@@ -213,28 +213,28 @@ int __put_user_bad(void) __attribute__((noreturn));
+ 	__chk_user_ptr(ptr);					\
+ 	switch (sizeof(*(ptr))) {				\
+ 	case 1: {						\
+-		unsigned char __x;				\
++		unsigned char __x = 0;				\
+ 		__gu_err = __get_user_fn(&__x, ptr,		\
+ 					 sizeof(*(ptr)));	\
+ 		(x) = *(__force __typeof__(*(ptr)) *) &__x;	\
+ 		break;						\
+ 	};							\
+ 	case 2: {						\
+-		unsigned short __x;				\
++		unsigned short __x = 0;				\
+ 		__gu_err = __get_user_fn(&__x, ptr,		\
+ 					 sizeof(*(ptr)));	\
+ 		(x) = *(__force __typeof__(*(ptr)) *) &__x;	\
+ 		break;						\
+ 	};							\
+ 	case 4: {						\
+-		unsigned int __x;				\
++		unsigned int __x = 0;				\
+ 		__gu_err = __get_user_fn(&__x, ptr,		\
+ 					 sizeof(*(ptr)));	\
+ 		(x) = *(__force __typeof__(*(ptr)) *) &__x;	\
+ 		break;						\
+ 	};							\
+ 	case 8: {						\
+-		unsigned long long __x;				\
++		unsigned long long __x = 0;			\
+ 		__gu_err = __get_user_fn(&__x, ptr,		\
+ 					 sizeof(*(ptr)));	\
+ 		(x) = *(__force __typeof__(*(ptr)) *) &__x;	\
+diff --git a/arch/score/include/asm/uaccess.h b/arch/score/include/asm/uaccess.h
+index ab66ddde777b..69326dfb894d 100644
+--- a/arch/score/include/asm/uaccess.h
++++ b/arch/score/include/asm/uaccess.h
+@@ -158,7 +158,7 @@ do {									\
+ 		__get_user_asm(val, "lw", ptr);				\
+ 		 break;							\
+ 	case 8: 							\
+-		if ((copy_from_user((void *)&val, ptr, 8)) == 0)	\
++		if (__copy_from_user((void *)&val, ptr, 8) == 0)	\
+ 			__gu_err = 0;					\
+ 		else							\
+ 			__gu_err = -EFAULT;				\
+@@ -183,6 +183,8 @@ do {									\
+ 									\
+ 	if (likely(access_ok(VERIFY_READ, __gu_ptr, size)))		\
+ 		__get_user_common((x), size, __gu_ptr);			\
++	else								\
++		(x) = 0;						\
+ 									\
+ 	__gu_err;							\
+ })
+@@ -196,6 +198,7 @@ do {									\
+ 		"2:\n"							\
+ 		".section .fixup,\"ax\"\n"				\
+ 		"3:li	%0, %4\n"					\
++		"li	%1, 0\n"					\
+ 		"j	2b\n"						\
+ 		".previous\n"						\
+ 		".section __ex_table,\"a\"\n"				\
+@@ -293,35 +296,34 @@ extern int __copy_tofrom_user(void *to, const void *from, unsigned long len);
+ static inline unsigned long
+ copy_from_user(void *to, const void *from, unsigned long len)
+ {
+-	unsigned long over;
++	unsigned long res = len;
+ 
+-	if (access_ok(VERIFY_READ, from, len))
+-		return __copy_tofrom_user(to, from, len);
++	if (likely(access_ok(VERIFY_READ, from, len)))
++		res = __copy_tofrom_user(to, from, len);
+ 
+-	if ((unsigned long)from < TASK_SIZE) {
+-		over = (unsigned long)from + len - TASK_SIZE;
+-		return __copy_tofrom_user(to, from, len - over) + over;
+-	}
+-	return len;
++	if (unlikely(res))
++		memset(to + (len - res), 0, res);
++
++	return res;
+ }
+ 
+ static inline unsigned long
+ copy_to_user(void *to, const void *from, unsigned long len)
+ {
+-	unsigned long over;
+-
+-	if (access_ok(VERIFY_WRITE, to, len))
+-		return __copy_tofrom_user(to, from, len);
++	if (likely(access_ok(VERIFY_WRITE, to, len)))
++		len = __copy_tofrom_user(to, from, len);
+ 
+-	if ((unsigned long)to < TASK_SIZE) {
+-		over = (unsigned long)to + len - TASK_SIZE;
+-		return __copy_tofrom_user(to, from, len - over) + over;
+-	}
+ 	return len;
+ }
+ 
+-#define __copy_from_user(to, from, len)	\
+-		__copy_tofrom_user((to), (from), (len))
++static inline unsigned long
++__copy_from_user(void *to, const void *from, unsigned long len)
++{
++	unsigned long left = __copy_tofrom_user(to, from, len);
++	if (unlikely(left))
++		memset(to + (len - left), 0, left);
++	return left;
++}
+ 
+ #define __copy_to_user(to, from, len)		\
+ 		__copy_tofrom_user((to), (from), (len))
+@@ -335,17 +337,17 @@ __copy_to_user_inatomic(void *to, const void *from, unsigned long len)
+ static inline unsigned long
+ __copy_from_user_inatomic(void *to, const void *from, unsigned long len)
+ {
+-	return __copy_from_user(to, from, len);
++	return __copy_tofrom_user(to, from, len);
+ }
+ 
+-#define __copy_in_user(to, from, len)	__copy_from_user(to, from, len)
++#define __copy_in_user(to, from, len)	__copy_tofrom_user(to, from, len)
+ 
+ static inline unsigned long
+ copy_in_user(void *to, const void *from, unsigned long len)
+ {
+ 	if (access_ok(VERIFY_READ, from, len) &&
+ 		      access_ok(VERFITY_WRITE, to, len))
+-		return copy_from_user(to, from, len);
++		return __copy_tofrom_user(to, from, len);
+ }
+ 
+ /*
+diff --git a/arch/sh/include/asm/uaccess.h b/arch/sh/include/asm/uaccess.h
+index a49635c51266..92ade79ac427 100644
+--- a/arch/sh/include/asm/uaccess.h
++++ b/arch/sh/include/asm/uaccess.h
+@@ -151,7 +151,10 @@ copy_from_user(void *to, const void __user *from, unsigned long n)
+ 	__kernel_size_t __copy_size = (__kernel_size_t) n;
+ 
+ 	if (__copy_size && __access_ok(__copy_from, __copy_size))
+-		return __copy_user(to, from, __copy_size);
++		__copy_size = __copy_user(to, from, __copy_size);
++
++	if (unlikely(__copy_size))
++		memset(to + (n - __copy_size), 0, __copy_size);
+ 
+ 	return __copy_size;
+ }
+diff --git a/arch/sh/include/asm/uaccess_64.h b/arch/sh/include/asm/uaccess_64.h
+index c01376c76b86..ca5073dd4596 100644
+--- a/arch/sh/include/asm/uaccess_64.h
++++ b/arch/sh/include/asm/uaccess_64.h
+@@ -24,6 +24,7 @@
+ #define __get_user_size(x,ptr,size,retval)			\
+ do {								\
+ 	retval = 0;						\
++	x = 0;							\
+ 	switch (size) {						\
+ 	case 1:							\
+ 		retval = __get_user_asm_b((void *)&x,		\
+diff --git a/arch/sparc/include/asm/uaccess_32.h b/arch/sparc/include/asm/uaccess_32.h
+index 64ee103dc29d..dfb542c7cc71 100644
+--- a/arch/sparc/include/asm/uaccess_32.h
++++ b/arch/sparc/include/asm/uaccess_32.h
+@@ -328,8 +328,10 @@ static inline unsigned long copy_from_user(void *to, const void __user *from, un
+ {
+ 	if (n && __access_ok((unsigned long) from, n))
+ 		return __copy_user((__force void __user *) to, from, n);
+-	else
++	else {
++		memset(to, 0, n);
+ 		return n;
++	}
+ }
+ 
+ static inline unsigned long __copy_from_user(void *to, const void __user *from, unsigned long n)
+diff --git a/arch/x86/include/asm/uaccess.h b/arch/x86/include/asm/uaccess.h
+index ace9dec050b1..d081e7e42fb3 100644
+--- a/arch/x86/include/asm/uaccess.h
++++ b/arch/x86/include/asm/uaccess.h
+@@ -391,7 +391,11 @@ do {									\
+ #define __get_user_asm_ex(x, addr, itype, rtype, ltype)			\
+ 	asm volatile("1:	mov"itype" %1,%"rtype"0\n"		\
+ 		     "2:\n"						\
+-		     _ASM_EXTABLE_EX(1b, 2b)				\
++		     ".section .fixup,\"ax\"\n"				\
++                     "3:xor"itype" %"rtype"0,%"rtype"0\n"		\
++		     "  jmp 2b\n"					\
++		     ".previous\n"					\
++		     _ASM_EXTABLE_EX(1b, 3b)				\
+ 		     : ltype(x) : "m" (__m(addr)))
+ 
+ #define __put_user_nocheck(x, ptr, size)			\
+diff --git a/crypto/blkcipher.c b/crypto/blkcipher.c
+index 0122bec38564..f25799f351f7 100644
+--- a/crypto/blkcipher.c
++++ b/crypto/blkcipher.c
+@@ -233,6 +233,8 @@ static int blkcipher_walk_next(struct blkcipher_desc *desc,
+ 		return blkcipher_walk_done(desc, walk, -EINVAL);
+ 	}
+ 
++	bsize = min(walk->walk_blocksize, n);
++
+ 	walk->flags &= ~(BLKCIPHER_WALK_SLOW | BLKCIPHER_WALK_COPY |
+ 			 BLKCIPHER_WALK_DIFF);
+ 	if (!scatterwalk_aligned(&walk->in, walk->alignmask) ||
+@@ -245,7 +247,6 @@ static int blkcipher_walk_next(struct blkcipher_desc *desc,
+ 		}
+ 	}
+ 
+-	bsize = min(walk->walk_blocksize, n);
+ 	n = scatterwalk_clamp(&walk->in, n);
+ 	n = scatterwalk_clamp(&walk->out, n);
+ 
+diff --git a/crypto/cryptd.c b/crypto/cryptd.c
+index b0602ba03111..34e4dfafb94f 100644
+--- a/crypto/cryptd.c
++++ b/crypto/cryptd.c
+@@ -585,9 +585,14 @@ static int cryptd_hash_export(struct ahash_request *req, void *out)
+ 
+ static int cryptd_hash_import(struct ahash_request *req, const void *in)
+ {
+-	struct cryptd_hash_request_ctx *rctx = ahash_request_ctx(req);
++	struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
++	struct cryptd_hash_ctx *ctx = crypto_ahash_ctx(tfm);
++	struct shash_desc *desc = cryptd_shash_desc(req);
++
++	desc->tfm = ctx->child;
++	desc->flags = req->base.flags;
+ 
+-	return crypto_shash_import(&rctx->desc, in);
++	return crypto_shash_import(desc, in);
+ }
+ 
+ static int cryptd_create_hash(struct crypto_template *tmpl, struct rtattr **tb,
+diff --git a/drivers/bus/arm-ccn.c b/drivers/bus/arm-ccn.c
+index 60397ec77ff7..27fd0dacad5f 100644
+--- a/drivers/bus/arm-ccn.c
++++ b/drivers/bus/arm-ccn.c
+@@ -804,6 +804,10 @@ static void arm_ccn_pmu_xp_dt_config(struct perf_event *event, int enable)
+ 	struct arm_ccn_component *xp;
+ 	u32 val, dt_cfg;
+ 
++	/* Nothing to do for cycle counter */
++	if (hw->idx == CCN_IDX_PMU_CYCLE_COUNTER)
++		return;
++
+ 	if (CCN_CONFIG_TYPE(event->attr.config) == CCN_TYPE_XP)
+ 		xp = &ccn->xp[CCN_CONFIG_XP(event->attr.config)];
+ 	else
+@@ -901,7 +905,7 @@ static void arm_ccn_pmu_xp_watchpoint_config(struct perf_event *event)
+ 
+ 	/* Comparison values */
+ 	writel(cmp_l & 0xffffffff, source->base + CCN_XP_DT_CMP_VAL_L(wp));
+-	writel((cmp_l >> 32) & 0xefffffff,
++	writel((cmp_l >> 32) & 0x7fffffff,
+ 			source->base + CCN_XP_DT_CMP_VAL_L(wp) + 4);
+ 	writel(cmp_h & 0xffffffff, source->base + CCN_XP_DT_CMP_VAL_H(wp));
+ 	writel((cmp_h >> 32) & 0x0fffffff,
+@@ -909,7 +913,7 @@ static void arm_ccn_pmu_xp_watchpoint_config(struct perf_event *event)
+ 
+ 	/* Mask */
+ 	writel(mask_l & 0xffffffff, source->base + CCN_XP_DT_CMP_MASK_L(wp));
+-	writel((mask_l >> 32) & 0xefffffff,
++	writel((mask_l >> 32) & 0x7fffffff,
+ 			source->base + CCN_XP_DT_CMP_MASK_L(wp) + 4);
+ 	writel(mask_h & 0xffffffff, source->base + CCN_XP_DT_CMP_MASK_H(wp));
+ 	writel((mask_h >> 32) & 0x0fffffff,
+diff --git a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c
+index 767d0eaabe97..3101f57492c0 100644
+--- a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c
++++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c
+@@ -316,19 +316,19 @@ atmel_hlcdc_plane_update_pos_and_size(struct atmel_hlcdc_plane *plane,
+ 			u32 *coeff_tab = heo_upscaling_ycoef;
+ 			u32 max_memsize;
+ 
+-			if (state->crtc_w < state->src_w)
++			if (state->crtc_h < state->src_h)
+ 				coeff_tab = heo_downscaling_ycoef;
+ 			for (i = 0; i < ARRAY_SIZE(heo_upscaling_ycoef); i++)
+ 				atmel_hlcdc_layer_update_cfg(&plane->layer,
+ 							     33 + i,
+ 							     0xffffffff,
+ 							     coeff_tab[i]);
+-			factor = ((8 * 256 * state->src_w) - (256 * 4)) /
+-				 state->crtc_w;
++			factor = ((8 * 256 * state->src_h) - (256 * 4)) /
++				 state->crtc_h;
+ 			factor++;
+-			max_memsize = ((factor * state->crtc_w) + (256 * 4)) /
++			max_memsize = ((factor * state->crtc_h) + (256 * 4)) /
+ 				      2048;
+-			if (max_memsize > state->src_w)
++			if (max_memsize > state->src_h)
+ 				factor--;
+ 			factor_reg |= (factor << 16) | 0x80000000;
+ 		}
+diff --git a/drivers/gpu/drm/drm_ioc32.c b/drivers/gpu/drm/drm_ioc32.c
+index 9cfcd0aef0df..92c4698e8427 100644
+--- a/drivers/gpu/drm/drm_ioc32.c
++++ b/drivers/gpu/drm/drm_ioc32.c
+@@ -1018,6 +1018,7 @@ static int compat_drm_wait_vblank(struct file *file, unsigned int cmd,
+ 	return 0;
+ }
+ 
++#if defined(CONFIG_X86) || defined(CONFIG_IA64)
+ typedef struct drm_mode_fb_cmd232 {
+ 	u32 fb_id;
+ 	u32 width;
+@@ -1074,6 +1075,7 @@ static int compat_drm_mode_addfb2(struct file *file, unsigned int cmd,
+ 
+ 	return 0;
+ }
++#endif
+ 
+ static drm_ioctl_compat_t *drm_compat_ioctls[] = {
+ 	[DRM_IOCTL_NR(DRM_IOCTL_VERSION32)] = compat_drm_version,
+@@ -1107,7 +1109,9 @@ static drm_ioctl_compat_t *drm_compat_ioctls[] = {
+ 	[DRM_IOCTL_NR(DRM_IOCTL_UPDATE_DRAW32)] = compat_drm_update_draw,
+ #endif
+ 	[DRM_IOCTL_NR(DRM_IOCTL_WAIT_VBLANK32)] = compat_drm_wait_vblank,
++#if defined(CONFIG_X86) || defined(CONFIG_IA64)
+ 	[DRM_IOCTL_NR(DRM_IOCTL_MODE_ADDFB232)] = compat_drm_mode_addfb2,
++#endif
+ };
+ 
+ /**
+diff --git a/drivers/iio/accel/kxsd9.c b/drivers/iio/accel/kxsd9.c
+index 78c911be115d..6bf81d95a3f4 100644
+--- a/drivers/iio/accel/kxsd9.c
++++ b/drivers/iio/accel/kxsd9.c
+@@ -166,6 +166,7 @@ static int kxsd9_read_raw(struct iio_dev *indio_dev,
+ 		ret = spi_w8r8(st->us, KXSD9_READ(KXSD9_REG_CTRL_C));
+ 		if (ret < 0)
+ 			goto error_ret;
++		*val = 0;
+ 		*val2 = kxsd9_micro_scales[ret & KXSD9_FS_MASK];
+ 		ret = IIO_VAL_INT_PLUS_MICRO;
+ 		break;
+diff --git a/drivers/net/can/flexcan.c b/drivers/net/can/flexcan.c
+index ad0a7e8c2c2b..8b8cacbaf20d 100644
+--- a/drivers/net/can/flexcan.c
++++ b/drivers/net/can/flexcan.c
+@@ -1273,11 +1273,10 @@ static int __maybe_unused flexcan_suspend(struct device *device)
+ 	struct flexcan_priv *priv = netdev_priv(dev);
+ 	int err;
+ 
+-	err = flexcan_chip_disable(priv);
+-	if (err)
+-		return err;
+-
+ 	if (netif_running(dev)) {
++		err = flexcan_chip_disable(priv);
++		if (err)
++			return err;
+ 		netif_stop_queue(dev);
+ 		netif_device_detach(dev);
+ 	}
+@@ -1290,13 +1289,17 @@ static int __maybe_unused flexcan_resume(struct device *device)
+ {
+ 	struct net_device *dev = dev_get_drvdata(device);
+ 	struct flexcan_priv *priv = netdev_priv(dev);
++	int err;
+ 
+ 	priv->can.state = CAN_STATE_ERROR_ACTIVE;
+ 	if (netif_running(dev)) {
+ 		netif_device_attach(dev);
+ 		netif_start_queue(dev);
++		err = flexcan_chip_enable(priv);
++		if (err)
++			return err;
+ 	}
+-	return flexcan_chip_enable(priv);
++	return 0;
+ }
+ 
+ static SIMPLE_DEV_PM_OPS(flexcan_pm_ops, flexcan_suspend, flexcan_resume);
+diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
+index d5f2fbf62d72..534b2b87bd5d 100644
+--- a/drivers/net/wireless/ath/ath9k/main.c
++++ b/drivers/net/wireless/ath/ath9k/main.c
+@@ -1541,13 +1541,13 @@ static int ath9k_sta_state(struct ieee80211_hw *hw,
+ 	struct ath_common *common = ath9k_hw_common(sc->sc_ah);
+ 	int ret = 0;
+ 
+-	if (old_state == IEEE80211_STA_AUTH &&
+-	    new_state == IEEE80211_STA_ASSOC) {
++	if (old_state == IEEE80211_STA_NOTEXIST &&
++	    new_state == IEEE80211_STA_NONE) {
+ 		ret = ath9k_sta_add(hw, vif, sta);
+ 		ath_dbg(common, CONFIG,
+ 			"Add station: %pM\n", sta->addr);
+-	} else if (old_state == IEEE80211_STA_ASSOC &&
+-		   new_state == IEEE80211_STA_AUTH) {
++	} else if (old_state == IEEE80211_STA_NONE &&
++		   new_state == IEEE80211_STA_NOTEXIST) {
+ 		ret = ath9k_sta_remove(hw, vif, sta);
+ 		ath_dbg(common, CONFIG,
+ 			"Remove station: %pM\n", sta->addr);
+diff --git a/drivers/scsi/constants.c b/drivers/scsi/constants.c
+index fa09d4be2b53..2b456ca69d5c 100644
+--- a/drivers/scsi/constants.c
++++ b/drivers/scsi/constants.c
+@@ -1181,8 +1181,9 @@ static const char * const snstext[] = {
+ 
+ /* Get sense key string or NULL if not available */
+ const char *
+-scsi_sense_key_string(unsigned char key) {
+-	if (key <= 0xE)
++scsi_sense_key_string(unsigned char key)
++{
++	if (key < ARRAY_SIZE(snstext))
+ 		return snstext[key];
+ 	return NULL;
+ }
+diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c
+index d93e43cfb6f8..ebcf40c2f12b 100644
+--- a/drivers/usb/chipidea/udc.c
++++ b/drivers/usb/chipidea/udc.c
+@@ -939,6 +939,15 @@ static int isr_setup_status_phase(struct ci_hdrc *ci)
+ 	int retval;
+ 	struct ci_hw_ep *hwep;
+ 
++	/*
++	 * Unexpected USB controller behavior, caused by bad signal integrity
++	 * or ground reference problems, can lead to isr_setup_status_phase
++	 * being called with ci->status equal to NULL.
++	 * If this situation occurs, you should review your USB hardware design.
++	 */
++	if (WARN_ON_ONCE(!ci->status))
++		return -EPIPE;
++
+ 	hwep = (ci->ep0_dir == TX) ? ci->ep0out : ci->ep0in;
+ 	ci->status->context = ci;
+ 	ci->status->complete = isr_setup_status_complete;
+diff --git a/drivers/usb/core/config.c b/drivers/usb/core/config.c
+index 894894f2ff93..81336acc7040 100644
+--- a/drivers/usb/core/config.c
++++ b/drivers/usb/core/config.c
+@@ -184,8 +184,10 @@ static int usb_parse_endpoint(struct device *ddev, int cfgno, int inum,
+ 	memcpy(&endpoint->desc, d, n);
+ 	INIT_LIST_HEAD(&endpoint->urb_list);
+ 
+-	/* Fix up bInterval values outside the legal range. Use 32 ms if no
+-	 * proper value can be guessed. */
++	/*
++	 * Fix up bInterval values outside the legal range.
++	 * Use 10 or 8 ms if no proper value can be guessed.
++	 */
+ 	i = 0;		/* i = min, j = max, n = default */
+ 	j = 255;
+ 	if (usb_endpoint_xfer_int(d)) {
+@@ -193,13 +195,15 @@ static int usb_parse_endpoint(struct device *ddev, int cfgno, int inum,
+ 		switch (to_usb_device(ddev)->speed) {
+ 		case USB_SPEED_SUPER:
+ 		case USB_SPEED_HIGH:
+-			/* Many device manufacturers are using full-speed
++			/*
++			 * Many device manufacturers are using full-speed
+ 			 * bInterval values in high-speed interrupt endpoint
+-			 * descriptors. Try to fix those and fall back to a
+-			 * 32 ms default value otherwise. */
++			 * descriptors. Try to fix those and fall back to an
++			 * 8-ms default value otherwise.
++			 */
+ 			n = fls(d->bInterval*8);
+ 			if (n == 0)
+-				n = 9;	/* 32 ms = 2^(9-1) uframes */
++				n = 7;	/* 8 ms = 2^(7-1) uframes */
+ 			j = 16;
+ 
+ 			/*
+@@ -214,10 +218,12 @@ static int usb_parse_endpoint(struct device *ddev, int cfgno, int inum,
+ 			}
+ 			break;
+ 		default:		/* USB_SPEED_FULL or _LOW */
+-			/* For low-speed, 10 ms is the official minimum.
++			/*
++			 * For low-speed, 10 ms is the official minimum.
+ 			 * But some "overclocked" devices might want faster
+-			 * polling so we'll allow it. */
+-			n = 32;
++			 * polling so we'll allow it.
++			 */
++			n = 10;
+ 			break;
+ 		}
+ 	} else if (usb_endpoint_xfer_isoc(d)) {
+@@ -225,10 +231,10 @@ static int usb_parse_endpoint(struct device *ddev, int cfgno, int inum,
+ 		j = 16;
+ 		switch (to_usb_device(ddev)->speed) {
+ 		case USB_SPEED_HIGH:
+-			n = 9;		/* 32 ms = 2^(9-1) uframes */
++			n = 7;		/* 8 ms = 2^(7-1) uframes */
+ 			break;
+ 		default:		/* USB_SPEED_FULL */
+-			n = 6;		/* 32 ms = 2^(6-1) frames */
++			n = 4;		/* 8 ms = 2^(4-1) frames */
+ 			break;
+ 		}
+ 	}
+diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
+index f7e917866e05..6a2911743829 100644
+--- a/drivers/usb/host/xhci-ring.c
++++ b/drivers/usb/host/xhci-ring.c
+@@ -846,6 +846,10 @@ void xhci_stop_endpoint_command_watchdog(unsigned long arg)
+ 	spin_lock_irqsave(&xhci->lock, flags);
+ 
+ 	ep->stop_cmds_pending--;
++	if (xhci->xhc_state & XHCI_STATE_REMOVING) {
++		spin_unlock_irqrestore(&xhci->lock, flags);
++		return;
++	}
+ 	if (xhci->xhc_state & XHCI_STATE_DYING) {
+ 		xhci_dbg_trace(xhci, trace_xhci_dbg_cancel_urb,
+ 				"Stop EP timer ran, but another timer marked "
+@@ -899,7 +903,7 @@ void xhci_stop_endpoint_command_watchdog(unsigned long arg)
+ 	spin_unlock_irqrestore(&xhci->lock, flags);
+ 	xhci_dbg_trace(xhci, trace_xhci_dbg_cancel_urb,
+ 			"Calling usb_hc_died()");
+-	usb_hc_died(xhci_to_hcd(xhci)->primary_hcd);
++	usb_hc_died(xhci_to_hcd(xhci));
+ 	xhci_dbg_trace(xhci, trace_xhci_dbg_cancel_urb,
+ 			"xHCI host controller is dead.");
+ }
+diff --git a/drivers/usb/renesas_usbhs/mod.c b/drivers/usb/renesas_usbhs/mod.c
+index 9a705b15b3a1..cf274b8c63fe 100644
+--- a/drivers/usb/renesas_usbhs/mod.c
++++ b/drivers/usb/renesas_usbhs/mod.c
+@@ -277,9 +277,16 @@ static irqreturn_t usbhs_interrupt(int irq, void *data)
+ 	usbhs_write(priv, INTSTS0, ~irq_state.intsts0 & INTSTS0_MAGIC);
+ 	usbhs_write(priv, INTSTS1, ~irq_state.intsts1 & INTSTS1_MAGIC);
+ 
+-	usbhs_write(priv, BRDYSTS, ~irq_state.brdysts);
++	/*
++	 * The driver should not clear the xxxSTS after the line of
++	 * "call irq callback functions" because each "if" statement is
++	 * possible to call the callback function for avoiding any side effects.
++	 */
++	if (irq_state.intsts0 & BRDY)
++		usbhs_write(priv, BRDYSTS, ~irq_state.brdysts);
+ 	usbhs_write(priv, NRDYSTS, ~irq_state.nrdysts);
+-	usbhs_write(priv, BEMPSTS, ~irq_state.bempsts);
++	if (irq_state.intsts0 & BEMP)
++		usbhs_write(priv, BEMPSTS, ~irq_state.bempsts);
+ 
+ 	/*
+ 	 * call irq callback functions
+diff --git a/drivers/usb/serial/usb-serial-simple.c b/drivers/usb/serial/usb-serial-simple.c
+index a204782ae530..e98b6e57b703 100644
+--- a/drivers/usb/serial/usb-serial-simple.c
++++ b/drivers/usb/serial/usb-serial-simple.c
+@@ -54,7 +54,8 @@ DEVICE(funsoft, FUNSOFT_IDS);
+ /* Infineon Flashloader driver */
+ #define FLASHLOADER_IDS()		\
+ 	{ USB_DEVICE_INTERFACE_CLASS(0x058b, 0x0041, USB_CLASS_CDC_DATA) }, \
+-	{ USB_DEVICE(0x8087, 0x0716) }
++	{ USB_DEVICE(0x8087, 0x0716) }, \
++	{ USB_DEVICE(0x8087, 0x0801) }
+ DEVICE(flashloader, FLASHLOADER_IDS);
+ 
+ /* Google Serial USB SubClass */
+diff --git a/fs/autofs4/autofs_i.h b/fs/autofs4/autofs_i.h
+index 5b700ef1e59d..6196b5eaf9a5 100644
+--- a/fs/autofs4/autofs_i.h
++++ b/fs/autofs4/autofs_i.h
+@@ -79,9 +79,13 @@ struct autofs_info {
+ };
+ 
+ #define AUTOFS_INF_EXPIRING	(1<<0) /* dentry is in the process of expiring */
+-#define AUTOFS_INF_NO_RCU	(1<<1) /* the dentry is being considered
++#define AUTOFS_INF_WANT_EXPIRE	(1<<1) /* the dentry is being considered
+ 					* for expiry, so RCU_walk is
+-					* not permitted
++					* not permitted.  If it progresses to
++					* actual expiry attempt, the flag is
++					* not cleared when EXPIRING is set -
++					* in that case it gets cleared only
++					* when it comes to clearing EXPIRING.
+ 					*/
+ #define AUTOFS_INF_PENDING	(1<<2) /* dentry pending mount */
+ 
+diff --git a/fs/autofs4/expire.c b/fs/autofs4/expire.c
+index 1cebc3c52fa5..7a5a598a2d94 100644
+--- a/fs/autofs4/expire.c
++++ b/fs/autofs4/expire.c
+@@ -315,19 +315,17 @@ struct dentry *autofs4_expire_direct(struct super_block *sb,
+ 	if (ino->flags & AUTOFS_INF_PENDING)
+ 		goto out;
+ 	if (!autofs4_direct_busy(mnt, root, timeout, do_now)) {
+-		ino->flags |= AUTOFS_INF_NO_RCU;
++		ino->flags |= AUTOFS_INF_WANT_EXPIRE;
+ 		spin_unlock(&sbi->fs_lock);
+ 		synchronize_rcu();
+ 		spin_lock(&sbi->fs_lock);
+ 		if (!autofs4_direct_busy(mnt, root, timeout, do_now)) {
+ 			ino->flags |= AUTOFS_INF_EXPIRING;
+-			smp_mb();
+-			ino->flags &= ~AUTOFS_INF_NO_RCU;
+ 			init_completion(&ino->expire_complete);
+ 			spin_unlock(&sbi->fs_lock);
+ 			return root;
+ 		}
+-		ino->flags &= ~AUTOFS_INF_NO_RCU;
++		ino->flags &= ~AUTOFS_INF_WANT_EXPIRE;
+ 	}
+ out:
+ 	spin_unlock(&sbi->fs_lock);
+@@ -417,6 +415,7 @@ static struct dentry *should_expire(struct dentry *dentry,
+ 	}
+ 	return NULL;
+ }
++
+ /*
+  * Find an eligible tree to time-out
+  * A tree is eligible if :-
+@@ -432,6 +431,7 @@ struct dentry *autofs4_expire_indirect(struct super_block *sb,
+ 	struct dentry *root = sb->s_root;
+ 	struct dentry *dentry;
+ 	struct dentry *expired;
++	struct dentry *found;
+ 	struct autofs_info *ino;
+ 
+ 	if (!root)
+@@ -442,48 +442,54 @@ struct dentry *autofs4_expire_indirect(struct super_block *sb,
+ 
+ 	dentry = NULL;
+ 	while ((dentry = get_next_positive_subdir(dentry, root))) {
++		int flags = how;
++
+ 		spin_lock(&sbi->fs_lock);
+ 		ino = autofs4_dentry_ino(dentry);
+-		if (ino->flags & AUTOFS_INF_NO_RCU)
+-			expired = NULL;
+-		else
+-			expired = should_expire(dentry, mnt, timeout, how);
+-		if (!expired) {
++		if (ino->flags & AUTOFS_INF_WANT_EXPIRE) {
+ 			spin_unlock(&sbi->fs_lock);
+ 			continue;
+ 		}
++		spin_unlock(&sbi->fs_lock);
++
++		expired = should_expire(dentry, mnt, timeout, flags);
++		if (!expired)
++			continue;
++
++		spin_lock(&sbi->fs_lock);
+ 		ino = autofs4_dentry_ino(expired);
+-		ino->flags |= AUTOFS_INF_NO_RCU;
++		ino->flags |= AUTOFS_INF_WANT_EXPIRE;
+ 		spin_unlock(&sbi->fs_lock);
+ 		synchronize_rcu();
+-		spin_lock(&sbi->fs_lock);
+-		if (should_expire(expired, mnt, timeout, how)) {
+-			if (expired != dentry)
+-				dput(dentry);
+-			goto found;
+-		}
+ 
+-		ino->flags &= ~AUTOFS_INF_NO_RCU;
++		/* Make sure a reference is not taken on found if
++		 * things have changed.
++		 */
++		flags &= ~AUTOFS_EXP_LEAVES;
++		found = should_expire(expired, mnt, timeout, how);
++		if (!found || found != expired)
++			/* Something has changed, continue */
++			goto next;
++
+ 		if (expired != dentry)
+-			dput(expired);
++			dput(dentry);
++
++		spin_lock(&sbi->fs_lock);
++		goto found;
++next:
++		spin_lock(&sbi->fs_lock);
++		ino->flags &= ~AUTOFS_INF_WANT_EXPIRE;
+ 		spin_unlock(&sbi->fs_lock);
++		if (expired != dentry)
++			dput(expired);
+ 	}
+ 	return NULL;
+ 
+ found:
+ 	DPRINTK("returning %p %pd", expired, expired);
+ 	ino->flags |= AUTOFS_INF_EXPIRING;
+-	smp_mb();
+-	ino->flags &= ~AUTOFS_INF_NO_RCU;
+ 	init_completion(&ino->expire_complete);
+ 	spin_unlock(&sbi->fs_lock);
+-	spin_lock(&sbi->lookup_lock);
+-	spin_lock(&expired->d_parent->d_lock);
+-	spin_lock_nested(&expired->d_lock, DENTRY_D_LOCK_NESTED);
+-	list_move(&expired->d_parent->d_subdirs, &expired->d_child);
+-	spin_unlock(&expired->d_lock);
+-	spin_unlock(&expired->d_parent->d_lock);
+-	spin_unlock(&sbi->lookup_lock);
+ 	return expired;
+ }
+ 
+@@ -492,15 +498,27 @@ int autofs4_expire_wait(struct dentry *dentry, int rcu_walk)
+ 	struct autofs_sb_info *sbi = autofs4_sbi(dentry->d_sb);
+ 	struct autofs_info *ino = autofs4_dentry_ino(dentry);
+ 	int status;
++	int state;
+ 
+ 	/* Block on any pending expire */
+-	if (!(ino->flags & (AUTOFS_INF_EXPIRING | AUTOFS_INF_NO_RCU)))
++	if (!(ino->flags & AUTOFS_INF_WANT_EXPIRE))
+ 		return 0;
+ 	if (rcu_walk)
+ 		return -ECHILD;
+ 
++retry:
+ 	spin_lock(&sbi->fs_lock);
+-	if (ino->flags & AUTOFS_INF_EXPIRING) {
++	state = ino->flags & (AUTOFS_INF_WANT_EXPIRE | AUTOFS_INF_EXPIRING);
++	if (state == AUTOFS_INF_WANT_EXPIRE) {
++		spin_unlock(&sbi->fs_lock);
++		/*
++		 * Possibly being selected for expire, wait until
++		 * it's selected or not.
++		 */
++		schedule_timeout_uninterruptible(HZ/10);
++		goto retry;
++	}
++	if (state & AUTOFS_INF_EXPIRING) {
+ 		spin_unlock(&sbi->fs_lock);
+ 
+ 		DPRINTK("waiting for expire %p name=%pd", dentry, dentry);
+@@ -551,7 +569,7 @@ int autofs4_expire_run(struct super_block *sb,
+ 	ino = autofs4_dentry_ino(dentry);
+ 	/* avoid rapid-fire expire attempts if expiry fails */
+ 	ino->last_used = now;
+-	ino->flags &= ~AUTOFS_INF_EXPIRING;
++	ino->flags &= ~(AUTOFS_INF_EXPIRING|AUTOFS_INF_WANT_EXPIRE);
+ 	complete_all(&ino->expire_complete);
+ 	spin_unlock(&sbi->fs_lock);
+ 
+@@ -579,7 +597,7 @@ int autofs4_do_expire_multi(struct super_block *sb, struct vfsmount *mnt,
+ 		spin_lock(&sbi->fs_lock);
+ 		/* avoid rapid-fire expire attempts if expiry fails */
+ 		ino->last_used = now;
+-		ino->flags &= ~AUTOFS_INF_EXPIRING;
++		ino->flags &= ~(AUTOFS_INF_EXPIRING|AUTOFS_INF_WANT_EXPIRE);
+ 		complete_all(&ino->expire_complete);
+ 		spin_unlock(&sbi->fs_lock);
+ 		dput(dentry);
+diff --git a/fs/autofs4/root.c b/fs/autofs4/root.c
+index c6d7d3dbd52a..7a54c6a867c8 100644
+--- a/fs/autofs4/root.c
++++ b/fs/autofs4/root.c
+@@ -455,7 +455,7 @@ static int autofs4_d_manage(struct dentry *dentry, bool rcu_walk)
+ 		 * a mount-trap.
+ 		 */
+ 		struct inode *inode;
+-		if (ino->flags & (AUTOFS_INF_EXPIRING | AUTOFS_INF_NO_RCU))
++		if (ino->flags & AUTOFS_INF_WANT_EXPIRE)
+ 			return 0;
+ 		if (d_mountpoint(dentry))
+ 			return 0;
+diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
+index 2eca30adb3e3..ff742d30ba60 100644
+--- a/fs/btrfs/ioctl.c
++++ b/fs/btrfs/ioctl.c
+@@ -1610,6 +1610,9 @@ static noinline int btrfs_ioctl_snap_create_transid(struct file *file,
+ 	int namelen;
+ 	int ret = 0;
+ 
++	if (!S_ISDIR(file_inode(file)->i_mode))
++		return -ENOTDIR;
++
+ 	ret = mnt_want_write_file(file);
+ 	if (ret)
+ 		goto out;
+@@ -1667,6 +1670,9 @@ static noinline int btrfs_ioctl_snap_create(struct file *file,
+ 	struct btrfs_ioctl_vol_args *vol_args;
+ 	int ret;
+ 
++	if (!S_ISDIR(file_inode(file)->i_mode))
++		return -ENOTDIR;
++
+ 	vol_args = memdup_user(arg, sizeof(*vol_args));
+ 	if (IS_ERR(vol_args))
+ 		return PTR_ERR(vol_args);
+@@ -1690,6 +1696,9 @@ static noinline int btrfs_ioctl_snap_create_v2(struct file *file,
+ 	bool readonly = false;
+ 	struct btrfs_qgroup_inherit *inherit = NULL;
+ 
++	if (!S_ISDIR(file_inode(file)->i_mode))
++		return -ENOTDIR;
++
+ 	vol_args = memdup_user(arg, sizeof(*vol_args));
+ 	if (IS_ERR(vol_args))
+ 		return PTR_ERR(vol_args);
+@@ -2318,6 +2327,9 @@ static noinline int btrfs_ioctl_snap_destroy(struct file *file,
+ 	int ret;
+ 	int err = 0;
+ 
++	if (!S_ISDIR(dir->i_mode))
++		return -ENOTDIR;
++
+ 	vol_args = memdup_user(arg, sizeof(*vol_args));
+ 	if (IS_ERR(vol_args))
+ 		return PTR_ERR(vol_args);
+diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
+index 5c222f3c4841..bd3c92b4bcee 100644
+--- a/fs/btrfs/tree-log.c
++++ b/fs/btrfs/tree-log.c
+@@ -2748,6 +2748,7 @@ int btrfs_sync_log(struct btrfs_trans_handle *trans,
+ 
+ 	if (log_root_tree->log_transid_committed >= root_log_ctx.log_transid) {
+ 		blk_finish_plug(&plug);
++		list_del_init(&root_log_ctx.list);
+ 		mutex_unlock(&log_root_tree->log_mutex);
+ 		ret = root_log_ctx.log_ret;
+ 		goto out;
+diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c
+index 2cb9e178d1c5..4196aa567784 100644
+--- a/fs/ext4/ioctl.c
++++ b/fs/ext4/ioctl.c
+@@ -637,7 +637,13 @@ resizefs_out:
+ 			goto encryption_policy_out;
+ 		}
+ 
++		err = mnt_want_write_file(filp);
++		if (err)
++			goto encryption_policy_out;
++
+ 		err = ext4_process_policy(&policy, inode);
++
++		mnt_drop_write_file(filp);
+ encryption_policy_out:
+ 		return err;
+ #else
+diff --git a/fs/fuse/file.c b/fs/fuse/file.c
+index 5cae35490b37..d8f29ef2d819 100644
+--- a/fs/fuse/file.c
++++ b/fs/fuse/file.c
+@@ -540,13 +540,13 @@ void fuse_read_fill(struct fuse_req *req, struct file *file, loff_t pos,
+ 	req->out.args[0].size = count;
+ }
+ 
+-static void fuse_release_user_pages(struct fuse_req *req, int write)
++static void fuse_release_user_pages(struct fuse_req *req, bool should_dirty)
+ {
+ 	unsigned i;
+ 
+ 	for (i = 0; i < req->num_pages; i++) {
+ 		struct page *page = req->pages[i];
+-		if (write)
++		if (should_dirty)
+ 			set_page_dirty_lock(page);
+ 		put_page(page);
+ 	}
+@@ -1331,6 +1331,7 @@ ssize_t fuse_direct_io(struct fuse_io_priv *io, struct iov_iter *iter,
+ 		       loff_t *ppos, int flags)
+ {
+ 	int write = flags & FUSE_DIO_WRITE;
++	bool should_dirty = !write && iter_is_iovec(iter);
+ 	int cuse = flags & FUSE_DIO_CUSE;
+ 	struct file *file = io->file;
+ 	struct inode *inode = file->f_mapping->host;
+@@ -1375,7 +1376,7 @@ ssize_t fuse_direct_io(struct fuse_io_priv *io, struct iov_iter *iter,
+ 			nres = fuse_send_read(req, io, pos, nbytes, owner);
+ 
+ 		if (!io->async)
+-			fuse_release_user_pages(req, !write);
++			fuse_release_user_pages(req, should_dirty);
+ 		if (req->out.h.error) {
+ 			if (!res)
+ 				res = req->out.h.error;
+diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
+index eef16ec0638a..319ba6814899 100644
+--- a/fs/nfs/nfs4proc.c
++++ b/fs/nfs/nfs4proc.c
+@@ -7281,12 +7281,20 @@ static int _nfs4_proc_create_session(struct nfs_client *clp,
+ 	status = rpc_call_sync(session->clp->cl_rpcclient, &msg, RPC_TASK_TIMEOUT);
+ 	trace_nfs4_create_session(clp, status);
+ 
++	switch (status) {
++	case -NFS4ERR_STALE_CLIENTID:
++	case -NFS4ERR_DELAY:
++	case -ETIMEDOUT:
++	case -EACCES:
++	case -EAGAIN:
++		goto out;
++	};
++
++	clp->cl_seqid++;
+ 	if (!status) {
+ 		/* Verify the session's negotiated channel_attrs values */
+ 		status = nfs4_verify_channel_attrs(&args, &res);
+ 		/* Increment the clientid slot sequence id */
+-		if (clp->cl_seqid == res.seqid)
+-			clp->cl_seqid++;
+ 		if (status)
+ 			goto out;
+ 		nfs4_update_session(session, &res);
+diff --git a/fs/notify/fanotify/fanotify.c b/fs/notify/fanotify/fanotify.c
+index d2f97ecca6a5..e0e5f7c3c99f 100644
+--- a/fs/notify/fanotify/fanotify.c
++++ b/fs/notify/fanotify/fanotify.c
+@@ -67,18 +67,7 @@ static int fanotify_get_response(struct fsnotify_group *group,
+ 
+ 	pr_debug("%s: group=%p event=%p\n", __func__, group, event);
+ 
+-	wait_event(group->fanotify_data.access_waitq, event->response ||
+-				atomic_read(&group->fanotify_data.bypass_perm));
+-
+-	if (!event->response) {	/* bypass_perm set */
+-		/*
+-		 * Event was canceled because group is being destroyed. Remove
+-		 * it from group's event list because we are responsible for
+-		 * freeing the permission event.
+-		 */
+-		fsnotify_remove_event(group, &event->fae.fse);
+-		return 0;
+-	}
++	wait_event(group->fanotify_data.access_waitq, event->response);
+ 
+ 	/* userspace responded, convert to something usable */
+ 	switch (event->response) {
+diff --git a/fs/notify/fanotify/fanotify_user.c b/fs/notify/fanotify/fanotify_user.c
+index cf275500a665..45ca844d1323 100644
+--- a/fs/notify/fanotify/fanotify_user.c
++++ b/fs/notify/fanotify/fanotify_user.c
+@@ -358,16 +358,20 @@ static int fanotify_release(struct inode *ignored, struct file *file)
+ 
+ #ifdef CONFIG_FANOTIFY_ACCESS_PERMISSIONS
+ 	struct fanotify_perm_event_info *event, *next;
++	struct fsnotify_event *fsn_event;
+ 
+ 	/*
+-	 * There may be still new events arriving in the notification queue
+-	 * but since userspace cannot use fanotify fd anymore, no event can
+-	 * enter or leave access_list by now.
++	 * Stop new events from arriving in the notification queue. since
++	 * userspace cannot use fanotify fd anymore, no event can enter or
++	 * leave access_list by now either.
+ 	 */
+-	spin_lock(&group->fanotify_data.access_lock);
+-
+-	atomic_inc(&group->fanotify_data.bypass_perm);
++	fsnotify_group_stop_queueing(group);
+ 
++	/*
++	 * Process all permission events on access_list and notification queue
++	 * and simulate reply from userspace.
++	 */
++	spin_lock(&group->fanotify_data.access_lock);
+ 	list_for_each_entry_safe(event, next, &group->fanotify_data.access_list,
+ 				 fae.fse.list) {
+ 		pr_debug("%s: found group=%p event=%p\n", __func__, group,
+@@ -379,12 +383,21 @@ static int fanotify_release(struct inode *ignored, struct file *file)
+ 	spin_unlock(&group->fanotify_data.access_lock);
+ 
+ 	/*
+-	 * Since bypass_perm is set, newly queued events will not wait for
+-	 * access response. Wake up the already sleeping ones now.
+-	 * synchronize_srcu() in fsnotify_destroy_group() will wait for all
+-	 * processes sleeping in fanotify_handle_event() waiting for access
+-	 * response and thus also for all permission events to be freed.
++	 * Destroy all non-permission events. For permission events just
++	 * dequeue them and set the response. They will be freed once the
++	 * response is consumed and fanotify_get_response() returns.
+ 	 */
++	mutex_lock(&group->notification_mutex);
++	while (!fsnotify_notify_queue_is_empty(group)) {
++		fsn_event = fsnotify_remove_first_event(group);
++		if (!(fsn_event->mask & FAN_ALL_PERM_EVENTS))
++			fsnotify_destroy_event(group, fsn_event);
++		else
++			FANOTIFY_PE(fsn_event)->response = FAN_ALLOW;
++	}
++	mutex_unlock(&group->notification_mutex);
++
++	/* Response for all permission events it set, wakeup waiters */
+ 	wake_up(&group->fanotify_data.access_waitq);
+ #endif
+ 
+@@ -751,7 +764,6 @@ SYSCALL_DEFINE2(fanotify_init, unsigned int, flags, unsigned int, event_f_flags)
+ 	spin_lock_init(&group->fanotify_data.access_lock);
+ 	init_waitqueue_head(&group->fanotify_data.access_waitq);
+ 	INIT_LIST_HEAD(&group->fanotify_data.access_list);
+-	atomic_set(&group->fanotify_data.bypass_perm, 0);
+ #endif
+ 	switch (flags & FAN_ALL_CLASS_BITS) {
+ 	case FAN_CLASS_NOTIF:
+diff --git a/fs/notify/group.c b/fs/notify/group.c
+index d16b62cb2854..18eb30c6bd8f 100644
+--- a/fs/notify/group.c
++++ b/fs/notify/group.c
+@@ -40,6 +40,17 @@ static void fsnotify_final_destroy_group(struct fsnotify_group *group)
+ }
+ 
+ /*
++ * Stop queueing new events for this group. Once this function returns
++ * fsnotify_add_event() will not add any new events to the group's queue.
++ */
++void fsnotify_group_stop_queueing(struct fsnotify_group *group)
++{
++	mutex_lock(&group->notification_mutex);
++	group->shutdown = true;
++	mutex_unlock(&group->notification_mutex);
++}
++
++/*
+  * Trying to get rid of a group. Remove all marks, flush all events and release
+  * the group reference.
+  * Note that another thread calling fsnotify_clear_marks_by_group() may still
+@@ -47,6 +58,14 @@ static void fsnotify_final_destroy_group(struct fsnotify_group *group)
+  */
+ void fsnotify_destroy_group(struct fsnotify_group *group)
+ {
++	/*
++	 * Stop queueing new events. The code below is careful enough to not
++	 * require this but fanotify needs to stop queuing events even before
++	 * fsnotify_destroy_group() is called and this makes the other callers
++	 * of fsnotify_destroy_group() to see the same behavior.
++	 */
++	fsnotify_group_stop_queueing(group);
++
+ 	/* clear all inode marks for this group */
+ 	fsnotify_clear_marks_by_group(group);
+ 
+diff --git a/fs/notify/notification.c b/fs/notify/notification.c
+index a95d8e037aeb..e455e83ceeeb 100644
+--- a/fs/notify/notification.c
++++ b/fs/notify/notification.c
+@@ -82,7 +82,8 @@ void fsnotify_destroy_event(struct fsnotify_group *group,
+  * Add an event to the group notification queue.  The group can later pull this
+  * event off the queue to deal with.  The function returns 0 if the event was
+  * added to the queue, 1 if the event was merged with some other queued event,
+- * 2 if the queue of events has overflown.
++ * 2 if the event was not queued - either the queue of events has overflown
++ * or the group is shutting down.
+  */
+ int fsnotify_add_event(struct fsnotify_group *group,
+ 		       struct fsnotify_event *event,
+@@ -96,6 +97,11 @@ int fsnotify_add_event(struct fsnotify_group *group,
+ 
+ 	mutex_lock(&group->notification_mutex);
+ 
++	if (group->shutdown) {
++		mutex_unlock(&group->notification_mutex);
++		return 2;
++	}
++
+ 	if (group->q_len >= group->max_events) {
+ 		ret = 2;
+ 		/* Queue overflow event only if it isn't already queued */
+@@ -126,21 +132,6 @@ queue:
+ }
+ 
+ /*
+- * Remove @event from group's notification queue. It is the responsibility of
+- * the caller to destroy the event.
+- */
+-void fsnotify_remove_event(struct fsnotify_group *group,
+-			   struct fsnotify_event *event)
+-{
+-	mutex_lock(&group->notification_mutex);
+-	if (!list_empty(&event->list)) {
+-		list_del_init(&event->list);
+-		group->q_len--;
+-	}
+-	mutex_unlock(&group->notification_mutex);
+-}
+-
+-/*
+  * Remove and return the first event from the notification list.  It is the
+  * responsibility of the caller to destroy the obtained event
+  */
+diff --git a/fs/ocfs2/dlm/dlmconvert.c b/fs/ocfs2/dlm/dlmconvert.c
+index f90931335c6b..2e11658676eb 100644
+--- a/fs/ocfs2/dlm/dlmconvert.c
++++ b/fs/ocfs2/dlm/dlmconvert.c
+@@ -262,7 +262,6 @@ enum dlm_status dlmconvert_remote(struct dlm_ctxt *dlm,
+ 				  struct dlm_lock *lock, int flags, int type)
+ {
+ 	enum dlm_status status;
+-	u8 old_owner = res->owner;
+ 
+ 	mlog(0, "type=%d, convert_type=%d, busy=%d\n", lock->ml.type,
+ 	     lock->ml.convert_type, res->state & DLM_LOCK_RES_IN_PROGRESS);
+@@ -329,7 +328,6 @@ enum dlm_status dlmconvert_remote(struct dlm_ctxt *dlm,
+ 
+ 	spin_lock(&res->spinlock);
+ 	res->state &= ~DLM_LOCK_RES_IN_PROGRESS;
+-	lock->convert_pending = 0;
+ 	/* if it failed, move it back to granted queue.
+ 	 * if master returns DLM_NORMAL and then down before sending ast,
+ 	 * it may have already been moved to granted queue, reset to
+@@ -338,12 +336,14 @@ enum dlm_status dlmconvert_remote(struct dlm_ctxt *dlm,
+ 		if (status != DLM_NOTQUEUED)
+ 			dlm_error(status);
+ 		dlm_revert_pending_convert(res, lock);
+-	} else if ((res->state & DLM_LOCK_RES_RECOVERING) ||
+-			(old_owner != res->owner)) {
+-		mlog(0, "res %.*s is in recovering or has been recovered.\n",
+-				res->lockname.len, res->lockname.name);
++	} else if (!lock->convert_pending) {
++		mlog(0, "%s: res %.*s, owner died and lock has been moved back "
++				"to granted list, retry convert.\n",
++				dlm->name, res->lockname.len, res->lockname.name);
+ 		status = DLM_RECOVERING;
+ 	}
++
++	lock->convert_pending = 0;
+ bail:
+ 	spin_unlock(&res->spinlock);
+ 
+diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
+index 3f1ee404f40f..e00be7f509db 100644
+--- a/fs/ocfs2/file.c
++++ b/fs/ocfs2/file.c
+@@ -1522,7 +1522,8 @@ static int ocfs2_zero_partial_clusters(struct inode *inode,
+ 				       u64 start, u64 len)
+ {
+ 	int ret = 0;
+-	u64 tmpend, end = start + len;
++	u64 tmpend = 0;
++	u64 end = start + len;
+ 	struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
+ 	unsigned int csize = osb->s_clustersize;
+ 	handle_t *handle;
+@@ -1554,18 +1555,31 @@ static int ocfs2_zero_partial_clusters(struct inode *inode,
+ 	}
+ 
+ 	/*
+-	 * We want to get the byte offset of the end of the 1st cluster.
++	 * If start is on a cluster boundary and end is somewhere in another
++	 * cluster, we have not COWed the cluster starting at start, unless
++	 * end is also within the same cluster. So, in this case, we skip this
++	 * first call to ocfs2_zero_range_for_truncate() truncate and move on
++	 * to the next one.
+ 	 */
+-	tmpend = (u64)osb->s_clustersize + (start & ~(osb->s_clustersize - 1));
+-	if (tmpend > end)
+-		tmpend = end;
++	if ((start & (csize - 1)) != 0) {
++		/*
++		 * We want to get the byte offset of the end of the 1st
++		 * cluster.
++		 */
++		tmpend = (u64)osb->s_clustersize +
++			(start & ~(osb->s_clustersize - 1));
++		if (tmpend > end)
++			tmpend = end;
+ 
+-	trace_ocfs2_zero_partial_clusters_range1((unsigned long long)start,
+-						 (unsigned long long)tmpend);
++		trace_ocfs2_zero_partial_clusters_range1(
++			(unsigned long long)start,
++			(unsigned long long)tmpend);
+ 
+-	ret = ocfs2_zero_range_for_truncate(inode, handle, start, tmpend);
+-	if (ret)
+-		mlog_errno(ret);
++		ret = ocfs2_zero_range_for_truncate(inode, handle, start,
++						    tmpend);
++		if (ret)
++			mlog_errno(ret);
++	}
+ 
+ 	if (tmpend < end) {
+ 		/*
+diff --git a/fs/overlayfs/super.c b/fs/overlayfs/super.c
+index c9b740111526..f60b2c745d02 100644
+--- a/fs/overlayfs/super.c
++++ b/fs/overlayfs/super.c
+@@ -679,11 +679,11 @@ retry:
+ 			goto out_dput;
+ 
+ 		err = vfs_removexattr(work, XATTR_NAME_POSIX_ACL_DEFAULT);
+-		if (err && err != -ENODATA)
++		if (err && err != -ENODATA && err != -EOPNOTSUPP)
+ 			goto out_dput;
+ 
+ 		err = vfs_removexattr(work, XATTR_NAME_POSIX_ACL_ACCESS);
+-		if (err && err != -ENODATA)
++		if (err && err != -ENODATA && err != -EOPNOTSUPP)
+ 			goto out_dput;
+ 
+ 		/* Clear any inherited mode bits */
+diff --git a/include/asm-generic/uaccess.h b/include/asm-generic/uaccess.h
+index 72d8803832ff..32901d11f8c4 100644
+--- a/include/asm-generic/uaccess.h
++++ b/include/asm-generic/uaccess.h
+@@ -163,9 +163,10 @@ static inline __must_check long __copy_to_user(void __user *to,
+ 
+ #define put_user(x, ptr)					\
+ ({								\
++	void *__p = (ptr);					\
+ 	might_fault();						\
+-	access_ok(VERIFY_WRITE, ptr, sizeof(*ptr)) ?		\
+-		__put_user(x, ptr) :				\
++	access_ok(VERIFY_WRITE, __p, sizeof(*ptr)) ?		\
++		__put_user((x), ((__typeof__(*(ptr)) *)__p)) :	\
+ 		-EFAULT;					\
+ })
+ 
+@@ -225,17 +226,22 @@ extern int __put_user_bad(void) __attribute__((noreturn));
+ 
+ #define get_user(x, ptr)					\
+ ({								\
++	const void *__p = (ptr);				\
+ 	might_fault();						\
+-	access_ok(VERIFY_READ, ptr, sizeof(*ptr)) ?		\
+-		__get_user(x, ptr) :				\
+-		-EFAULT;					\
++	access_ok(VERIFY_READ, __p, sizeof(*ptr)) ?		\
++		__get_user((x), (__typeof__(*(ptr)) *)__p) :	\
++		((x) = (__typeof__(*(ptr)))0,-EFAULT);		\
+ })
+ 
+ #ifndef __get_user_fn
+ static inline int __get_user_fn(size_t size, const void __user *ptr, void *x)
+ {
+-	size = __copy_from_user(x, ptr, size);
+-	return size ? -EFAULT : size;
++	size_t n = __copy_from_user(x, ptr, size);
++	if (unlikely(n)) {
++		memset(x + (size - n), 0, n);
++		return -EFAULT;
++	}
++	return 0;
+ }
+ 
+ #define __get_user_fn(sz, u, k)	__get_user_fn(sz, u, k)
+@@ -255,11 +261,13 @@ extern int __get_user_bad(void) __attribute__((noreturn));
+ static inline long copy_from_user(void *to,
+ 		const void __user * from, unsigned long n)
+ {
++	unsigned long res = n;
+ 	might_fault();
+-	if (access_ok(VERIFY_READ, from, n))
+-		return __copy_from_user(to, from, n);
+-	else
+-		return n;
++	if (likely(access_ok(VERIFY_READ, from, n)))
++		res = __copy_from_user(to, from, n);
++	if (unlikely(res))
++		memset(to + (n - res), 0, res);
++	return res;
+ }
+ 
+ static inline long copy_to_user(void __user *to,
+diff --git a/include/linux/fsnotify_backend.h b/include/linux/fsnotify_backend.h
+index 0f313f93c586..46dde3a3c891 100644
+--- a/include/linux/fsnotify_backend.h
++++ b/include/linux/fsnotify_backend.h
+@@ -150,6 +150,7 @@ struct fsnotify_group {
+ 	#define FS_PRIO_1	1 /* fanotify content based access control */
+ 	#define FS_PRIO_2	2 /* fanotify pre-content access */
+ 	unsigned int priority;
++	bool shutdown;		/* group is being shut down, don't queue more events */
+ 
+ 	/* stores all fastpath marks assoc with this group so they can be cleaned on unregister */
+ 	struct mutex mark_mutex;	/* protect marks_list */
+@@ -181,7 +182,6 @@ struct fsnotify_group {
+ 			spinlock_t access_lock;
+ 			struct list_head access_list;
+ 			wait_queue_head_t access_waitq;
+-			atomic_t bypass_perm;
+ #endif /* CONFIG_FANOTIFY_ACCESS_PERMISSIONS */
+ 			int f_flags;
+ 			unsigned int max_marks;
+@@ -301,6 +301,8 @@ extern struct fsnotify_group *fsnotify_alloc_group(const struct fsnotify_ops *op
+ extern void fsnotify_get_group(struct fsnotify_group *group);
+ /* drop reference on a group from fsnotify_alloc_group */
+ extern void fsnotify_put_group(struct fsnotify_group *group);
++/* group destruction begins, stop queuing new events */
++extern void fsnotify_group_stop_queueing(struct fsnotify_group *group);
+ /* destroy group */
+ extern void fsnotify_destroy_group(struct fsnotify_group *group);
+ /* fasync handler function */
+@@ -313,8 +315,6 @@ extern int fsnotify_add_event(struct fsnotify_group *group,
+ 			      struct fsnotify_event *event,
+ 			      int (*merge)(struct list_head *,
+ 					   struct fsnotify_event *));
+-/* Remove passed event from groups notification queue */
+-extern void fsnotify_remove_event(struct fsnotify_group *group, struct fsnotify_event *event);
+ /* true if the group notification queue is empty */
+ extern bool fsnotify_notify_queue_is_empty(struct fsnotify_group *group);
+ /* return, but do not dequeue the first event on the notification queue */
+diff --git a/include/linux/irq.h b/include/linux/irq.h
+index 3532dca843f4..33475a37f1bb 100644
+--- a/include/linux/irq.h
++++ b/include/linux/irq.h
+@@ -852,6 +852,16 @@ static inline void irq_gc_lock(struct irq_chip_generic *gc) { }
+ static inline void irq_gc_unlock(struct irq_chip_generic *gc) { }
+ #endif
+ 
++/*
++ * The irqsave variants are for usage in non interrupt code. Do not use
++ * them in irq_chip callbacks. Use irq_gc_lock() instead.
++ */
++#define irq_gc_lock_irqsave(gc, flags)	\
++	raw_spin_lock_irqsave(&(gc)->lock, flags)
++
++#define irq_gc_unlock_irqrestore(gc, flags)	\
++	raw_spin_unlock_irqrestore(&(gc)->lock, flags)
++
+ static inline void irq_reg_writel(struct irq_chip_generic *gc,
+ 				  u32 val, int reg_offset)
+ {
+diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h
+index 4b3736f7065c..30a8f531236c 100644
+--- a/include/linux/pagemap.h
++++ b/include/linux/pagemap.h
+@@ -594,56 +594,56 @@ static inline int fault_in_pages_readable(const char __user *uaddr, int size)
+  */
+ static inline int fault_in_multipages_writeable(char __user *uaddr, int size)
+ {
+-	int ret = 0;
+ 	char __user *end = uaddr + size - 1;
+ 
+ 	if (unlikely(size == 0))
+-		return ret;
++		return 0;
+ 
++	if (unlikely(uaddr > end))
++		return -EFAULT;
+ 	/*
+ 	 * Writing zeroes into userspace here is OK, because we know that if
+ 	 * the zero gets there, we'll be overwriting it.
+ 	 */
+-	while (uaddr <= end) {
+-		ret = __put_user(0, uaddr);
+-		if (ret != 0)
+-			return ret;
++	do {
++		if (unlikely(__put_user(0, uaddr) != 0))
++			return -EFAULT;
+ 		uaddr += PAGE_SIZE;
+-	}
++	} while (uaddr <= end);
+ 
+ 	/* Check whether the range spilled into the next page. */
+ 	if (((unsigned long)uaddr & PAGE_MASK) ==
+ 			((unsigned long)end & PAGE_MASK))
+-		ret = __put_user(0, end);
++		return __put_user(0, end);
+ 
+-	return ret;
++	return 0;
+ }
+ 
+ static inline int fault_in_multipages_readable(const char __user *uaddr,
+ 					       int size)
+ {
+ 	volatile char c;
+-	int ret = 0;
+ 	const char __user *end = uaddr + size - 1;
+ 
+ 	if (unlikely(size == 0))
+-		return ret;
++		return 0;
+ 
+-	while (uaddr <= end) {
+-		ret = __get_user(c, uaddr);
+-		if (ret != 0)
+-			return ret;
++	if (unlikely(uaddr > end))
++		return -EFAULT;
++
++	do {
++		if (unlikely(__get_user(c, uaddr) != 0))
++			return -EFAULT;
+ 		uaddr += PAGE_SIZE;
+-	}
++	} while (uaddr <= end);
+ 
+ 	/* Check whether the range spilled into the next page. */
+ 	if (((unsigned long)uaddr & PAGE_MASK) ==
+ 			((unsigned long)end & PAGE_MASK)) {
+-		ret = __get_user(c, end);
+-		(void)c;
++		return __get_user(c, end);
+ 	}
+ 
+-	return ret;
++	return 0;
+ }
+ 
+ int add_to_page_cache_locked(struct page *page, struct address_space *mapping,
+diff --git a/include/linux/uio.h b/include/linux/uio.h
+index 8b01e1c3c614..5f9c59da978b 100644
+--- a/include/linux/uio.h
++++ b/include/linux/uio.h
+@@ -76,7 +76,7 @@ size_t iov_iter_copy_from_user_atomic(struct page *page,
+ 		struct iov_iter *i, unsigned long offset, size_t bytes);
+ void iov_iter_advance(struct iov_iter *i, size_t bytes);
+ int iov_iter_fault_in_readable(struct iov_iter *i, size_t bytes);
+-int iov_iter_fault_in_multipages_readable(struct iov_iter *i, size_t bytes);
++#define iov_iter_fault_in_multipages_readable iov_iter_fault_in_readable
+ size_t iov_iter_single_seg_count(const struct iov_iter *i);
+ size_t copy_page_to_iter(struct page *page, size_t offset, size_t bytes,
+ 			 struct iov_iter *i);
+diff --git a/kernel/sched/core.c b/kernel/sched/core.c
+index 98e607121d09..6cb5f00696f5 100644
+--- a/kernel/sched/core.c
++++ b/kernel/sched/core.c
+@@ -1672,6 +1672,28 @@ try_to_wake_up(struct task_struct *p, unsigned int state, int wake_flags)
+ 	success = 1; /* we're going to change ->state */
+ 	cpu = task_cpu(p);
+ 
++	/*
++	 * Ensure we load p->on_rq _after_ p->state, otherwise it would
++	 * be possible to, falsely, observe p->on_rq == 0 and get stuck
++	 * in smp_cond_load_acquire() below.
++	 *
++	 * sched_ttwu_pending()                 try_to_wake_up()
++	 *   [S] p->on_rq = 1;                  [L] P->state
++	 *       UNLOCK rq->lock  -----.
++	 *                              \
++	 *				 +---   RMB
++	 * schedule()                   /
++	 *       LOCK rq->lock    -----'
++	 *       UNLOCK rq->lock
++	 *
++	 * [task p]
++	 *   [S] p->state = UNINTERRUPTIBLE     [L] p->on_rq
++	 *
++	 * Pairs with the UNLOCK+LOCK on rq->lock from the
++	 * last wakeup of our task and the schedule that got our task
++	 * current.
++	 */
++	smp_rmb();
+ 	if (p->on_rq && ttwu_remote(p, wake_flags))
+ 		goto stat;
+ 
+diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
+index de6ea94c41bb..61ea7e8cdde5 100644
+--- a/kernel/trace/trace.c
++++ b/kernel/trace/trace.c
+@@ -4694,19 +4694,20 @@ tracing_read_pipe(struct file *filp, char __user *ubuf,
+ 	struct trace_iterator *iter = filp->private_data;
+ 	ssize_t sret;
+ 
+-	/* return any leftover data */
+-	sret = trace_seq_to_user(&iter->seq, ubuf, cnt);
+-	if (sret != -EBUSY)
+-		return sret;
+-
+-	trace_seq_init(&iter->seq);
+-
+ 	/*
+ 	 * Avoid more than one consumer on a single file descriptor
+ 	 * This is just a matter of traces coherency, the ring buffer itself
+ 	 * is protected.
+ 	 */
+ 	mutex_lock(&iter->mutex);
++
++	/* return any leftover data */
++	sret = trace_seq_to_user(&iter->seq, ubuf, cnt);
++	if (sret != -EBUSY)
++		goto out;
++
++	trace_seq_init(&iter->seq);
++
+ 	if (iter->trace->read) {
+ 		sret = iter->trace->read(iter, filp, ubuf, cnt, ppos);
+ 		if (sret)
+@@ -5731,9 +5732,6 @@ tracing_buffers_splice_read(struct file *file, loff_t *ppos,
+ 		return -EBUSY;
+ #endif
+ 
+-	if (splice_grow_spd(pipe, &spd))
+-		return -ENOMEM;
+-
+ 	if (*ppos & (PAGE_SIZE - 1))
+ 		return -EINVAL;
+ 
+@@ -5743,6 +5741,9 @@ tracing_buffers_splice_read(struct file *file, loff_t *ppos,
+ 		len &= PAGE_MASK;
+ 	}
+ 
++	if (splice_grow_spd(pipe, &spd))
++		return -ENOMEM;
++
+  again:
+ 	trace_access_lock(iter->cpu_file);
+ 	entries = ring_buffer_entries_cpu(iter->trace_buffer->buffer, iter->cpu_file);
+@@ -5800,19 +5801,21 @@ tracing_buffers_splice_read(struct file *file, loff_t *ppos,
+ 	/* did we read anything? */
+ 	if (!spd.nr_pages) {
+ 		if (ret)
+-			return ret;
++			goto out;
+ 
++		ret = -EAGAIN;
+ 		if ((file->f_flags & O_NONBLOCK) || (flags & SPLICE_F_NONBLOCK))
+-			return -EAGAIN;
++			goto out;
+ 
+ 		ret = wait_on_pipe(iter, true);
+ 		if (ret)
+-			return ret;
++			goto out;
+ 
+ 		goto again;
+ 	}
+ 
+ 	ret = splice_to_pipe(pipe, &spd);
++out:
+ 	splice_shrink_spd(&spd);
+ 
+ 	return ret;
+diff --git a/lib/iov_iter.c b/lib/iov_iter.c
+index 75232ad0a5e7..daca582a8ed0 100644
+--- a/lib/iov_iter.c
++++ b/lib/iov_iter.c
+@@ -298,33 +298,13 @@ done:
+ }
+ 
+ /*
+- * Fault in the first iovec of the given iov_iter, to a maximum length
+- * of bytes. Returns 0 on success, or non-zero if the memory could not be
+- * accessed (ie. because it is an invalid address).
+- *
+- * writev-intensive code may want this to prefault several iovecs -- that
+- * would be possible (callers must not rely on the fact that _only_ the
+- * first iovec will be faulted with the current implementation).
+- */
+-int iov_iter_fault_in_readable(struct iov_iter *i, size_t bytes)
+-{
+-	if (!(i->type & (ITER_BVEC|ITER_KVEC))) {
+-		char __user *buf = i->iov->iov_base + i->iov_offset;
+-		bytes = min(bytes, i->iov->iov_len - i->iov_offset);
+-		return fault_in_pages_readable(buf, bytes);
+-	}
+-	return 0;
+-}
+-EXPORT_SYMBOL(iov_iter_fault_in_readable);
+-
+-/*
+  * Fault in one or more iovecs of the given iov_iter, to a maximum length of
+  * bytes.  For each iovec, fault in each page that constitutes the iovec.
+  *
+  * Return 0 on success, or non-zero if the memory could not be accessed (i.e.
+  * because it is an invalid address).
+  */
+-int iov_iter_fault_in_multipages_readable(struct iov_iter *i, size_t bytes)
++int iov_iter_fault_in_readable(struct iov_iter *i, size_t bytes)
+ {
+ 	size_t skip = i->iov_offset;
+ 	const struct iovec *iov;
+@@ -341,7 +321,7 @@ int iov_iter_fault_in_multipages_readable(struct iov_iter *i, size_t bytes)
+ 	}
+ 	return 0;
+ }
+-EXPORT_SYMBOL(iov_iter_fault_in_multipages_readable);
++EXPORT_SYMBOL(iov_iter_fault_in_readable);
+ 
+ void iov_iter_init(struct iov_iter *i, int direction,
+ 			const struct iovec *iov, unsigned long nr_segs,
+diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
+index f555f4fc1d62..c66b7d325a39 100644
+--- a/net/ipv6/addrconf.c
++++ b/net/ipv6/addrconf.c
+@@ -1801,6 +1801,7 @@ errdad:
+ 	spin_unlock_bh(&ifp->lock);
+ 
+ 	addrconf_mod_dad_work(ifp, 0);
++	in6_ifa_put(ifp);
+ }
+ 
+ /* Join to solicited addr multicast group.
+@@ -3526,6 +3527,7 @@ static void addrconf_dad_work(struct work_struct *w)
+ 		addrconf_dad_begin(ifp);
+ 		goto out;
+ 	} else if (action == DAD_ABORT) {
++		in6_ifa_hold(ifp);
+ 		addrconf_dad_stop(ifp, 1);
+ 		goto out;
+ 	}
+diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
+index f24138681b80..978d7f91ca91 100644
+--- a/net/wireless/nl80211.c
++++ b/net/wireless/nl80211.c
+@@ -6466,7 +6466,7 @@ static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
+ 
+ 		params.n_counter_offsets_presp = len / sizeof(u16);
+ 		if (rdev->wiphy.max_num_csa_counters &&
+-		    (params.n_counter_offsets_beacon >
++		    (params.n_counter_offsets_presp >
+ 		     rdev->wiphy.max_num_csa_counters))
+ 			return -EINVAL;
+ 
+diff --git a/net/wireless/wext-core.c b/net/wireless/wext-core.c
+index c753211cb83f..b50ee5d622e1 100644
+--- a/net/wireless/wext-core.c
++++ b/net/wireless/wext-core.c
+@@ -955,29 +955,8 @@ static int wireless_process_ioctl(struct net *net, struct ifreq *ifr,
+ 			return private(dev, iwr, cmd, info, handler);
+ 	}
+ 	/* Old driver API : call driver ioctl handler */
+-	if (dev->netdev_ops->ndo_do_ioctl) {
+-#ifdef CONFIG_COMPAT
+-		if (info->flags & IW_REQUEST_FLAG_COMPAT) {
+-			int ret = 0;
+-			struct iwreq iwr_lcl;
+-			struct compat_iw_point *iwp_compat = (void *) &iwr->u.data;
+-
+-			memcpy(&iwr_lcl, iwr, sizeof(struct iwreq));
+-			iwr_lcl.u.data.pointer = compat_ptr(iwp_compat->pointer);
+-			iwr_lcl.u.data.length = iwp_compat->length;
+-			iwr_lcl.u.data.flags = iwp_compat->flags;
+-
+-			ret = dev->netdev_ops->ndo_do_ioctl(dev, (void *) &iwr_lcl, cmd);
+-
+-			iwp_compat->pointer = ptr_to_compat(iwr_lcl.u.data.pointer);
+-			iwp_compat->length = iwr_lcl.u.data.length;
+-			iwp_compat->flags = iwr_lcl.u.data.flags;
+-
+-			return ret;
+-		} else
+-#endif
+-			return dev->netdev_ops->ndo_do_ioctl(dev, ifr, cmd);
+-	}
++	if (dev->netdev_ops->ndo_do_ioctl)
++		return dev->netdev_ops->ndo_do_ioctl(dev, ifr, cmd);
+ 	return -EOPNOTSUPP;
+ }
+ 
+diff --git a/sound/core/rawmidi.c b/sound/core/rawmidi.c
+index 795437b10082..b450a27588c8 100644
+--- a/sound/core/rawmidi.c
++++ b/sound/core/rawmidi.c
+@@ -1633,11 +1633,13 @@ static int snd_rawmidi_dev_register(struct snd_device *device)
+ 		return -EBUSY;
+ 	}
+ 	list_add_tail(&rmidi->list, &snd_rawmidi_devices);
++	mutex_unlock(&register_mutex);
+ 	err = snd_register_device(SNDRV_DEVICE_TYPE_RAWMIDI,
+ 				  rmidi->card, rmidi->device,
+ 				  &snd_rawmidi_f_ops, rmidi, &rmidi->dev);
+ 	if (err < 0) {
+ 		rmidi_err(rmidi, "unable to register\n");
++		mutex_lock(&register_mutex);
+ 		list_del(&rmidi->list);
+ 		mutex_unlock(&register_mutex);
+ 		return err;
+@@ -1645,6 +1647,7 @@ static int snd_rawmidi_dev_register(struct snd_device *device)
+ 	if (rmidi->ops && rmidi->ops->dev_register &&
+ 	    (err = rmidi->ops->dev_register(rmidi)) < 0) {
+ 		snd_unregister_device(&rmidi->dev);
++		mutex_lock(&register_mutex);
+ 		list_del(&rmidi->list);
+ 		mutex_unlock(&register_mutex);
+ 		return err;
+@@ -1677,7 +1680,6 @@ static int snd_rawmidi_dev_register(struct snd_device *device)
+ 		}
+ 	}
+ #endif /* CONFIG_SND_OSSEMUL */
+-	mutex_unlock(&register_mutex);
+ 	sprintf(name, "midi%d", rmidi->device);
+ 	entry = snd_info_create_card_entry(rmidi->card, name, rmidi->card->proc_root);
+ 	if (entry) {
+diff --git a/sound/core/timer.c b/sound/core/timer.c
+index 43e785a79eb3..8800d237369a 100644
+--- a/sound/core/timer.c
++++ b/sound/core/timer.c
+@@ -35,6 +35,9 @@
+ #include <sound/initval.h>
+ #include <linux/kmod.h>
+ 
++/* internal flags */
++#define SNDRV_TIMER_IFLG_PAUSED		0x00010000
++
+ #if IS_ENABLED(CONFIG_SND_HRTIMER)
+ #define DEFAULT_TIMER_LIMIT 4
+ #elif IS_ENABLED(CONFIG_SND_RTCTIMER)
+@@ -296,8 +299,21 @@ int snd_timer_open(struct snd_timer_instance **ti,
+ 		get_device(&timer->card->card_dev);
+ 	timeri->slave_class = tid->dev_sclass;
+ 	timeri->slave_id = slave_id;
+-	if (list_empty(&timer->open_list_head) && timer->hw.open)
+-		timer->hw.open(timer);
++
++	if (list_empty(&timer->open_list_head) && timer->hw.open) {
++		int err = timer->hw.open(timer);
++		if (err) {
++			kfree(timeri->owner);
++			kfree(timeri);
++
++			if (timer->card)
++				put_device(&timer->card->card_dev);
++			module_put(timer->module);
++			mutex_unlock(&register_mutex);
++			return err;
++		}
++	}
++
+ 	list_add_tail(&timeri->open_list, &timer->open_list_head);
+ 	snd_timer_check_master(timeri);
+ 	mutex_unlock(&register_mutex);
+@@ -305,8 +321,6 @@ int snd_timer_open(struct snd_timer_instance **ti,
+ 	return 0;
+ }
+ 
+-static int _snd_timer_stop(struct snd_timer_instance *timeri, int event);
+-
+ /*
+  * close a timer instance
+  */
+@@ -395,7 +409,6 @@ unsigned long snd_timer_resolution(struct snd_timer_instance *timeri)
+ static void snd_timer_notify1(struct snd_timer_instance *ti, int event)
+ {
+ 	struct snd_timer *timer;
+-	unsigned long flags;
+ 	unsigned long resolution = 0;
+ 	struct snd_timer_instance *ts;
+ 	struct timespec tstamp;
+@@ -419,34 +432,66 @@ static void snd_timer_notify1(struct snd_timer_instance *ti, int event)
+ 		return;
+ 	if (timer->hw.flags & SNDRV_TIMER_HW_SLAVE)
+ 		return;
+-	spin_lock_irqsave(&timer->lock, flags);
+ 	list_for_each_entry(ts, &ti->slave_active_head, active_list)
+ 		if (ts->ccallback)
+ 			ts->ccallback(ts, event + 100, &tstamp, resolution);
+-	spin_unlock_irqrestore(&timer->lock, flags);
+ }
+ 
+-static int snd_timer_start1(struct snd_timer *timer, struct snd_timer_instance *timeri,
+-			    unsigned long sticks)
++/* start/continue a master timer */
++static int snd_timer_start1(struct snd_timer_instance *timeri,
++			    bool start, unsigned long ticks)
+ {
++	struct snd_timer *timer;
++	int result;
++	unsigned long flags;
++
++	timer = timeri->timer;
++	if (!timer)
++		return -EINVAL;
++
++	spin_lock_irqsave(&timer->lock, flags);
++	if (timer->card && timer->card->shutdown) {
++		result = -ENODEV;
++		goto unlock;
++	}
++	if (timeri->flags & (SNDRV_TIMER_IFLG_RUNNING |
++			     SNDRV_TIMER_IFLG_START)) {
++		result = -EBUSY;
++		goto unlock;
++	}
++
++	if (start)
++		timeri->ticks = timeri->cticks = ticks;
++	else if (!timeri->cticks)
++		timeri->cticks = 1;
++	timeri->pticks = 0;
++
+ 	list_move_tail(&timeri->active_list, &timer->active_list_head);
+ 	if (timer->running) {
+ 		if (timer->hw.flags & SNDRV_TIMER_HW_SLAVE)
+ 			goto __start_now;
+ 		timer->flags |= SNDRV_TIMER_FLG_RESCHED;
+ 		timeri->flags |= SNDRV_TIMER_IFLG_START;
+-		return 1;	/* delayed start */
++		result = 1; /* delayed start */
+ 	} else {
+-		timer->sticks = sticks;
++		if (start)
++			timer->sticks = ticks;
+ 		timer->hw.start(timer);
+ 	      __start_now:
+ 		timer->running++;
+ 		timeri->flags |= SNDRV_TIMER_IFLG_RUNNING;
+-		return 0;
++		result = 0;
+ 	}
++	snd_timer_notify1(timeri, start ? SNDRV_TIMER_EVENT_START :
++			  SNDRV_TIMER_EVENT_CONTINUE);
++ unlock:
++	spin_unlock_irqrestore(&timer->lock, flags);
++	return result;
+ }
+ 
+-static int snd_timer_start_slave(struct snd_timer_instance *timeri)
++/* start/continue a slave timer */
++static int snd_timer_start_slave(struct snd_timer_instance *timeri,
++				 bool start)
+ {
+ 	unsigned long flags;
+ 
+@@ -460,88 +505,37 @@ static int snd_timer_start_slave(struct snd_timer_instance *timeri)
+ 		spin_lock(&timeri->timer->lock);
+ 		list_add_tail(&timeri->active_list,
+ 			      &timeri->master->slave_active_head);
++		snd_timer_notify1(timeri, start ? SNDRV_TIMER_EVENT_START :
++				  SNDRV_TIMER_EVENT_CONTINUE);
+ 		spin_unlock(&timeri->timer->lock);
+ 	}
+ 	spin_unlock_irqrestore(&slave_active_lock, flags);
+ 	return 1; /* delayed start */
+ }
+ 
+-/*
+- *  start the timer instance
+- */
+-int snd_timer_start(struct snd_timer_instance *timeri, unsigned int ticks)
++/* stop/pause a master timer */
++static int snd_timer_stop1(struct snd_timer_instance *timeri, bool stop)
+ {
+ 	struct snd_timer *timer;
+-	int result = -EINVAL;
++	int result = 0;
+ 	unsigned long flags;
+ 
+-	if (timeri == NULL || ticks < 1)
+-		return -EINVAL;
+-	if (timeri->flags & SNDRV_TIMER_IFLG_SLAVE) {
+-		result = snd_timer_start_slave(timeri);
+-		if (result >= 0)
+-			snd_timer_notify1(timeri, SNDRV_TIMER_EVENT_START);
+-		return result;
+-	}
+-	timer = timeri->timer;
+-	if (timer == NULL)
+-		return -EINVAL;
+-	if (timer->card && timer->card->shutdown)
+-		return -ENODEV;
+-	spin_lock_irqsave(&timer->lock, flags);
+-	if (timeri->flags & (SNDRV_TIMER_IFLG_RUNNING |
+-			     SNDRV_TIMER_IFLG_START)) {
+-		result = -EBUSY;
+-		goto unlock;
+-	}
+-	timeri->ticks = timeri->cticks = ticks;
+-	timeri->pticks = 0;
+-	result = snd_timer_start1(timer, timeri, ticks);
+- unlock:
+-	spin_unlock_irqrestore(&timer->lock, flags);
+-	if (result >= 0)
+-		snd_timer_notify1(timeri, SNDRV_TIMER_EVENT_START);
+-	return result;
+-}
+-
+-static int _snd_timer_stop(struct snd_timer_instance *timeri, int event)
+-{
+-	struct snd_timer *timer;
+-	unsigned long flags;
+-
+-	if (snd_BUG_ON(!timeri))
+-		return -ENXIO;
+-
+-	if (timeri->flags & SNDRV_TIMER_IFLG_SLAVE) {
+-		spin_lock_irqsave(&slave_active_lock, flags);
+-		if (!(timeri->flags & SNDRV_TIMER_IFLG_RUNNING)) {
+-			spin_unlock_irqrestore(&slave_active_lock, flags);
+-			return -EBUSY;
+-		}
+-		if (timeri->timer)
+-			spin_lock(&timeri->timer->lock);
+-		timeri->flags &= ~SNDRV_TIMER_IFLG_RUNNING;
+-		list_del_init(&timeri->ack_list);
+-		list_del_init(&timeri->active_list);
+-		if (timeri->timer)
+-			spin_unlock(&timeri->timer->lock);
+-		spin_unlock_irqrestore(&slave_active_lock, flags);
+-		goto __end;
+-	}
+ 	timer = timeri->timer;
+ 	if (!timer)
+ 		return -EINVAL;
+ 	spin_lock_irqsave(&timer->lock, flags);
+ 	if (!(timeri->flags & (SNDRV_TIMER_IFLG_RUNNING |
+ 			       SNDRV_TIMER_IFLG_START))) {
+-		spin_unlock_irqrestore(&timer->lock, flags);
+-		return -EBUSY;
++		result = -EBUSY;
++		goto unlock;
+ 	}
+ 	list_del_init(&timeri->ack_list);
+ 	list_del_init(&timeri->active_list);
+-	if (timer->card && timer->card->shutdown) {
+-		spin_unlock_irqrestore(&timer->lock, flags);
+-		return 0;
++	if (timer->card && timer->card->shutdown)
++		goto unlock;
++	if (stop) {
++		timeri->cticks = timeri->ticks;
++		timeri->pticks = 0;
+ 	}
+ 	if ((timeri->flags & SNDRV_TIMER_IFLG_RUNNING) &&
+ 	    !(--timer->running)) {
+@@ -556,35 +550,64 @@ static int _snd_timer_stop(struct snd_timer_instance *timeri, int event)
+ 		}
+ 	}
+ 	timeri->flags &= ~(SNDRV_TIMER_IFLG_RUNNING | SNDRV_TIMER_IFLG_START);
++	if (stop)
++		timeri->flags &= ~SNDRV_TIMER_IFLG_PAUSED;
++	else
++		timeri->flags |= SNDRV_TIMER_IFLG_PAUSED;
++	snd_timer_notify1(timeri, stop ? SNDRV_TIMER_EVENT_STOP :
++			  SNDRV_TIMER_EVENT_CONTINUE);
++ unlock:
+ 	spin_unlock_irqrestore(&timer->lock, flags);
+-      __end:
+-	if (event != SNDRV_TIMER_EVENT_RESOLUTION)
+-		snd_timer_notify1(timeri, event);
++	return result;
++}
++
++/* stop/pause a slave timer */
++static int snd_timer_stop_slave(struct snd_timer_instance *timeri, bool stop)
++{
++	unsigned long flags;
++
++	spin_lock_irqsave(&slave_active_lock, flags);
++	if (!(timeri->flags & SNDRV_TIMER_IFLG_RUNNING)) {
++		spin_unlock_irqrestore(&slave_active_lock, flags);
++		return -EBUSY;
++	}
++	timeri->flags &= ~SNDRV_TIMER_IFLG_RUNNING;
++	if (timeri->timer) {
++		spin_lock(&timeri->timer->lock);
++		list_del_init(&timeri->ack_list);
++		list_del_init(&timeri->active_list);
++		snd_timer_notify1(timeri, stop ? SNDRV_TIMER_EVENT_STOP :
++				  SNDRV_TIMER_EVENT_CONTINUE);
++		spin_unlock(&timeri->timer->lock);
++	}
++	spin_unlock_irqrestore(&slave_active_lock, flags);
+ 	return 0;
+ }
+ 
+ /*
++ *  start the timer instance
++ */
++int snd_timer_start(struct snd_timer_instance *timeri, unsigned int ticks)
++{
++	if (timeri == NULL || ticks < 1)
++		return -EINVAL;
++	if (timeri->flags & SNDRV_TIMER_IFLG_SLAVE)
++		return snd_timer_start_slave(timeri, true);
++	else
++		return snd_timer_start1(timeri, true, ticks);
++}
++
++/*
+  * stop the timer instance.
+  *
+  * do not call this from the timer callback!
+  */
+ int snd_timer_stop(struct snd_timer_instance *timeri)
+ {
+-	struct snd_timer *timer;
+-	unsigned long flags;
+-	int err;
+-
+-	err = _snd_timer_stop(timeri, SNDRV_TIMER_EVENT_STOP);
+-	if (err < 0)
+-		return err;
+-	timer = timeri->timer;
+-	if (!timer)
+-		return -EINVAL;
+-	spin_lock_irqsave(&timer->lock, flags);
+-	timeri->cticks = timeri->ticks;
+-	timeri->pticks = 0;
+-	spin_unlock_irqrestore(&timer->lock, flags);
+-	return 0;
++	if (timeri->flags & SNDRV_TIMER_IFLG_SLAVE)
++		return snd_timer_stop_slave(timeri, true);
++	else
++		return snd_timer_stop1(timeri, true);
+ }
+ 
+ /*
+@@ -592,32 +615,14 @@ int snd_timer_stop(struct snd_timer_instance *timeri)
+  */
+ int snd_timer_continue(struct snd_timer_instance *timeri)
+ {
+-	struct snd_timer *timer;
+-	int result = -EINVAL;
+-	unsigned long flags;
++	/* timer can continue only after pause */
++	if (!(timeri->flags & SNDRV_TIMER_IFLG_PAUSED))
++		return -EINVAL;
+ 
+-	if (timeri == NULL)
+-		return result;
+ 	if (timeri->flags & SNDRV_TIMER_IFLG_SLAVE)
+-		return snd_timer_start_slave(timeri);
+-	timer = timeri->timer;
+-	if (! timer)
+-		return -EINVAL;
+-	if (timer->card && timer->card->shutdown)
+-		return -ENODEV;
+-	spin_lock_irqsave(&timer->lock, flags);
+-	if (timeri->flags & SNDRV_TIMER_IFLG_RUNNING) {
+-		result = -EBUSY;
+-		goto unlock;
+-	}
+-	if (!timeri->cticks)
+-		timeri->cticks = 1;
+-	timeri->pticks = 0;
+-	result = snd_timer_start1(timer, timeri, timer->sticks);
+- unlock:
+-	spin_unlock_irqrestore(&timer->lock, flags);
+-	snd_timer_notify1(timeri, SNDRV_TIMER_EVENT_CONTINUE);
+-	return result;
++		return snd_timer_start_slave(timeri, false);
++	else
++		return snd_timer_start1(timeri, false, 0);
+ }
+ 
+ /*
+@@ -625,7 +630,10 @@ int snd_timer_continue(struct snd_timer_instance *timeri)
+  */
+ int snd_timer_pause(struct snd_timer_instance * timeri)
+ {
+-	return _snd_timer_stop(timeri, SNDRV_TIMER_EVENT_PAUSE);
++	if (timeri->flags & SNDRV_TIMER_IFLG_SLAVE)
++		return snd_timer_stop_slave(timeri, false);
++	else
++		return snd_timer_stop1(timeri, false);
+ }
+ 
+ /*
+@@ -837,6 +845,7 @@ int snd_timer_new(struct snd_card *card, char *id, struct snd_timer_id *tid,
+ 	timer->tmr_subdevice = tid->subdevice;
+ 	if (id)
+ 		strlcpy(timer->id, id, sizeof(timer->id));
++	timer->sticks = 1;
+ 	INIT_LIST_HEAD(&timer->device_list);
+ 	INIT_LIST_HEAD(&timer->open_list_head);
+ 	INIT_LIST_HEAD(&timer->active_list_head);
+@@ -1826,6 +1835,9 @@ static int snd_timer_user_continue(struct file *file)
+ 	tu = file->private_data;
+ 	if (!tu->timeri)
+ 		return -EBADFD;
++	/* start timer instead of continue if it's not used before */
++	if (!(tu->timeri->flags & SNDRV_TIMER_IFLG_PAUSED))
++		return snd_timer_user_start(file);
+ 	tu->timeri->lost = 0;
+ 	return (err = snd_timer_continue(tu->timeri)) < 0 ? err : 0;
+ }
+@@ -1967,6 +1979,7 @@ static ssize_t snd_timer_user_read(struct file *file, char __user *buffer,
+ 		tu->qused--;
+ 		spin_unlock_irq(&tu->qlock);
+ 
++		mutex_lock(&tu->ioctl_lock);
+ 		if (tu->tread) {
+ 			if (copy_to_user(buffer, &tu->tqueue[qhead],
+ 					 sizeof(struct snd_timer_tread)))
+@@ -1976,6 +1989,7 @@ static ssize_t snd_timer_user_read(struct file *file, char __user *buffer,
+ 					 sizeof(struct snd_timer_read)))
+ 				err = -EFAULT;
+ 		}
++		mutex_unlock(&tu->ioctl_lock);
+ 
+ 		spin_lock_irq(&tu->qlock);
+ 		if (err < 0)
+diff --git a/sound/firewire/fireworks/fireworks.h b/sound/firewire/fireworks/fireworks.h
+index 084d414b228c..b431c34b2d74 100644
+--- a/sound/firewire/fireworks/fireworks.h
++++ b/sound/firewire/fireworks/fireworks.h
+@@ -106,7 +106,6 @@ struct snd_efw {
+ 	u8 *resp_buf;
+ 	u8 *pull_ptr;
+ 	u8 *push_ptr;
+-	unsigned int resp_queues;
+ };
+ 
+ int snd_efw_transaction_cmd(struct fw_unit *unit,
+diff --git a/sound/firewire/fireworks/fireworks_hwdep.c b/sound/firewire/fireworks/fireworks_hwdep.c
+index 33df8655fe81..2e1d9a23920c 100644
+--- a/sound/firewire/fireworks/fireworks_hwdep.c
++++ b/sound/firewire/fireworks/fireworks_hwdep.c
+@@ -25,6 +25,7 @@ hwdep_read_resp_buf(struct snd_efw *efw, char __user *buf, long remained,
+ {
+ 	unsigned int length, till_end, type;
+ 	struct snd_efw_transaction *t;
++	u8 *pull_ptr;
+ 	long count = 0;
+ 
+ 	if (remained < sizeof(type) + sizeof(struct snd_efw_transaction))
+@@ -38,8 +39,17 @@ hwdep_read_resp_buf(struct snd_efw *efw, char __user *buf, long remained,
+ 	buf += sizeof(type);
+ 
+ 	/* write into buffer as many responses as possible */
+-	while (efw->resp_queues > 0) {
+-		t = (struct snd_efw_transaction *)(efw->pull_ptr);
++	spin_lock_irq(&efw->lock);
++
++	/*
++	 * When another task reaches here during this task's access to user
++	 * space, it picks up current position in buffer and can read the same
++	 * series of responses.
++	 */
++	pull_ptr = efw->pull_ptr;
++
++	while (efw->push_ptr != pull_ptr) {
++		t = (struct snd_efw_transaction *)(pull_ptr);
+ 		length = be32_to_cpu(t->length) * sizeof(__be32);
+ 
+ 		/* confirm enough space for this response */
+@@ -49,26 +59,39 @@ hwdep_read_resp_buf(struct snd_efw *efw, char __user *buf, long remained,
+ 		/* copy from ring buffer to user buffer */
+ 		while (length > 0) {
+ 			till_end = snd_efw_resp_buf_size -
+-				(unsigned int)(efw->pull_ptr - efw->resp_buf);
++				(unsigned int)(pull_ptr - efw->resp_buf);
+ 			till_end = min_t(unsigned int, length, till_end);
+ 
+-			if (copy_to_user(buf, efw->pull_ptr, till_end))
++			spin_unlock_irq(&efw->lock);
++
++			if (copy_to_user(buf, pull_ptr, till_end))
+ 				return -EFAULT;
+ 
+-			efw->pull_ptr += till_end;
+-			if (efw->pull_ptr >= efw->resp_buf +
+-					     snd_efw_resp_buf_size)
+-				efw->pull_ptr -= snd_efw_resp_buf_size;
++			spin_lock_irq(&efw->lock);
++
++			pull_ptr += till_end;
++			if (pull_ptr >= efw->resp_buf + snd_efw_resp_buf_size)
++				pull_ptr -= snd_efw_resp_buf_size;
+ 
+ 			length -= till_end;
+ 			buf += till_end;
+ 			count += till_end;
+ 			remained -= till_end;
+ 		}
+-
+-		efw->resp_queues--;
+ 	}
+ 
++	/*
++	 * All of tasks can read from the buffer nearly simultaneously, but the
++	 * last position for each task is different depending on the length of
++	 * given buffer. Here, for simplicity, a position of buffer is set by
++	 * the latest task. It's better for a listening application to allow one
++	 * thread to read from the buffer. Unless, each task can read different
++	 * sequence of responses depending on variation of buffer length.
++	 */
++	efw->pull_ptr = pull_ptr;
++
++	spin_unlock_irq(&efw->lock);
++
+ 	return count;
+ }
+ 
+@@ -76,14 +99,17 @@ static long
+ hwdep_read_locked(struct snd_efw *efw, char __user *buf, long count,
+ 		  loff_t *offset)
+ {
+-	union snd_firewire_event event;
++	union snd_firewire_event event = {
++		.lock_status.type = SNDRV_FIREWIRE_EVENT_LOCK_STATUS,
++	};
+ 
+-	memset(&event, 0, sizeof(event));
++	spin_lock_irq(&efw->lock);
+ 
+-	event.lock_status.type = SNDRV_FIREWIRE_EVENT_LOCK_STATUS;
+ 	event.lock_status.status = (efw->dev_lock_count > 0);
+ 	efw->dev_lock_changed = false;
+ 
++	spin_unlock_irq(&efw->lock);
++
+ 	count = min_t(long, count, sizeof(event.lock_status));
+ 
+ 	if (copy_to_user(buf, &event, count))
+@@ -98,10 +124,15 @@ hwdep_read(struct snd_hwdep *hwdep, char __user *buf, long count,
+ {
+ 	struct snd_efw *efw = hwdep->private_data;
+ 	DEFINE_WAIT(wait);
++	bool dev_lock_changed;
++	bool queued;
+ 
+ 	spin_lock_irq(&efw->lock);
+ 
+-	while ((!efw->dev_lock_changed) && (efw->resp_queues == 0)) {
++	dev_lock_changed = efw->dev_lock_changed;
++	queued = efw->push_ptr != efw->pull_ptr;
++
++	while (!dev_lock_changed && !queued) {
+ 		prepare_to_wait(&efw->hwdep_wait, &wait, TASK_INTERRUPTIBLE);
+ 		spin_unlock_irq(&efw->lock);
+ 		schedule();
+@@ -109,15 +140,17 @@ hwdep_read(struct snd_hwdep *hwdep, char __user *buf, long count,
+ 		if (signal_pending(current))
+ 			return -ERESTARTSYS;
+ 		spin_lock_irq(&efw->lock);
++		dev_lock_changed = efw->dev_lock_changed;
++		queued = efw->push_ptr != efw->pull_ptr;
+ 	}
+ 
+-	if (efw->dev_lock_changed)
++	spin_unlock_irq(&efw->lock);
++
++	if (dev_lock_changed)
+ 		count = hwdep_read_locked(efw, buf, count, offset);
+-	else if (efw->resp_queues > 0)
++	else if (queued)
+ 		count = hwdep_read_resp_buf(efw, buf, count, offset);
+ 
+-	spin_unlock_irq(&efw->lock);
+-
+ 	return count;
+ }
+ 
+@@ -160,7 +193,7 @@ hwdep_poll(struct snd_hwdep *hwdep, struct file *file, poll_table *wait)
+ 	poll_wait(file, &efw->hwdep_wait, wait);
+ 
+ 	spin_lock_irq(&efw->lock);
+-	if (efw->dev_lock_changed || (efw->resp_queues > 0))
++	if (efw->dev_lock_changed || efw->pull_ptr != efw->push_ptr)
+ 		events = POLLIN | POLLRDNORM;
+ 	else
+ 		events = 0;
+diff --git a/sound/firewire/fireworks/fireworks_proc.c b/sound/firewire/fireworks/fireworks_proc.c
+index 0639dcb13f7d..beb0a0ffee57 100644
+--- a/sound/firewire/fireworks/fireworks_proc.c
++++ b/sound/firewire/fireworks/fireworks_proc.c
+@@ -188,8 +188,8 @@ proc_read_queues_state(struct snd_info_entry *entry,
+ 	else
+ 		consumed = (unsigned int)(efw->push_ptr - efw->pull_ptr);
+ 
+-	snd_iprintf(buffer, "%d %d/%d\n",
+-		    efw->resp_queues, consumed, snd_efw_resp_buf_size);
++	snd_iprintf(buffer, "%d/%d\n",
++		    consumed, snd_efw_resp_buf_size);
+ }
+ 
+ static void
+diff --git a/sound/firewire/fireworks/fireworks_transaction.c b/sound/firewire/fireworks/fireworks_transaction.c
+index f550808d1784..36a08ba51ec7 100644
+--- a/sound/firewire/fireworks/fireworks_transaction.c
++++ b/sound/firewire/fireworks/fireworks_transaction.c
+@@ -121,11 +121,11 @@ copy_resp_to_buf(struct snd_efw *efw, void *data, size_t length, int *rcode)
+ 	size_t capacity, till_end;
+ 	struct snd_efw_transaction *t;
+ 
+-	spin_lock_irq(&efw->lock);
+-
+ 	t = (struct snd_efw_transaction *)data;
+ 	length = min_t(size_t, be32_to_cpu(t->length) * sizeof(u32), length);
+ 
++	spin_lock_irq(&efw->lock);
++
+ 	if (efw->push_ptr < efw->pull_ptr)
+ 		capacity = (unsigned int)(efw->pull_ptr - efw->push_ptr);
+ 	else
+@@ -155,7 +155,6 @@ copy_resp_to_buf(struct snd_efw *efw, void *data, size_t length, int *rcode)
+ 	}
+ 
+ 	/* for hwdep */
+-	efw->resp_queues++;
+ 	wake_up(&efw->hwdep_wait);
+ 
+ 	*rcode = RCODE_COMPLETE;
+diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
+index 429697a93a71..2a9ec9706db8 100644
+--- a/sound/pci/hda/patch_realtek.c
++++ b/sound/pci/hda/patch_realtek.c
+@@ -4750,6 +4750,7 @@ enum {
+ 	ALC221_FIXUP_HP_FRONT_MIC,
+ 	ALC292_FIXUP_TPT460,
+ 	ALC298_FIXUP_SPK_VOLUME,
++	ALC256_FIXUP_DELL_INSPIRON_7559_SUBWOOFER,
+ };
+ 
+ static const struct hda_fixup alc269_fixups[] = {
+@@ -5411,6 +5412,15 @@ static const struct hda_fixup alc269_fixups[] = {
+ 		.chained = true,
+ 		.chain_id = ALC298_FIXUP_DELL1_MIC_NO_PRESENCE,
+ 	},
++	[ALC256_FIXUP_DELL_INSPIRON_7559_SUBWOOFER] = {
++		.type = HDA_FIXUP_PINS,
++		.v.pins = (const struct hda_pintbl[]) {
++			{ 0x1b, 0x90170151 },
++			{ }
++		},
++		.chained = true,
++		.chain_id = ALC255_FIXUP_DELL1_MIC_NO_PRESENCE
++	},
+ };
+ 
+ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
+@@ -5455,6 +5465,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
+ 	SND_PCI_QUIRK(0x1028, 0x06df, "Dell", ALC293_FIXUP_DISABLE_AAMIX_MULTIJACK),
+ 	SND_PCI_QUIRK(0x1028, 0x06e0, "Dell", ALC293_FIXUP_DISABLE_AAMIX_MULTIJACK),
+ 	SND_PCI_QUIRK(0x1028, 0x0704, "Dell XPS 13 9350", ALC256_FIXUP_DELL_XPS_13_HEADPHONE_NOISE),
++	SND_PCI_QUIRK(0x1028, 0x0706, "Dell Inspiron 7559", ALC256_FIXUP_DELL_INSPIRON_7559_SUBWOOFER),
+ 	SND_PCI_QUIRK(0x1028, 0x0725, "Dell Inspiron 3162", ALC255_FIXUP_DELL_SPK_NOISE),
+ 	SND_PCI_QUIRK(0x1028, 0x075b, "Dell XPS 13 9360", ALC256_FIXUP_DELL_XPS_13_HEADPHONE_NOISE),
+ 	SND_PCI_QUIRK(0x1028, 0x075d, "Dell AIO", ALC298_FIXUP_SPK_VOLUME),
+diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c
+index e27df0d3898b..4a083433944e 100644
+--- a/sound/usb/quirks.c
++++ b/sound/usb/quirks.c
+@@ -1137,6 +1137,7 @@ bool snd_usb_get_sample_rate_quirk(struct snd_usb_audio *chip)
+ 	case USB_ID(0x04D8, 0xFEEA): /* Benchmark DAC1 Pre */
+ 	case USB_ID(0x0556, 0x0014): /* Phoenix Audio TMX320VC */
+ 	case USB_ID(0x074D, 0x3553): /* Outlaw RR2150 (Micronas UAC3553B) */
++	case USB_ID(0x1901, 0x0191): /* GE B850V3 CP2114 audio interface */
+ 	case USB_ID(0x1de7, 0x0013): /* Phoenix Audio MT202exe */
+ 	case USB_ID(0x1de7, 0x0014): /* Phoenix Audio TMX320 */
+ 	case USB_ID(0x1de7, 0x0114): /* Phoenix Audio MT202pcs */