diff --git a/Makefile b/Makefile
index efc7a766c470..cfcb6f87ff8b 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 VERSION = 4
 PATCHLEVEL = 3
-SUBLEVEL = 5
-EXTRAVERSION =
+SUBLEVEL = 6
+EXTRAVERSION = -rc1
 NAME = Blurry Fish Butt
 
 # *DOCUMENTATION*
diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c
index 9317974c9b8e..326564386cfa 100644
--- a/arch/arm64/mm/mmu.c
+++ b/arch/arm64/mm/mmu.c
@@ -301,6 +301,7 @@ static void create_mapping_late(phys_addr_t phys, unsigned long virt,
 }
 
 #ifdef CONFIG_DEBUG_RODATA
+#define SWAPPER_BLOCK_SIZE	(PAGE_SHIFT == 12 ? SECTION_SIZE : PAGE_SIZE)
 static void __init __map_memblock(phys_addr_t start, phys_addr_t end)
 {
 	/*
@@ -308,8 +309,8 @@ static void __init __map_memblock(phys_addr_t start, phys_addr_t end)
 	 * for now. This will get more fine grained later once all memory
 	 * is mapped
 	 */
-	unsigned long kernel_x_start = round_down(__pa(_stext), SECTION_SIZE);
-	unsigned long kernel_x_end = round_up(__pa(__init_end), SECTION_SIZE);
+	unsigned long kernel_x_start = round_down(__pa(_stext), SWAPPER_BLOCK_SIZE);
+	unsigned long kernel_x_end = round_up(__pa(__init_end), SWAPPER_BLOCK_SIZE);
 
 	if (end < kernel_x_start) {
 		create_mapping(start, __phys_to_virt(start),
@@ -397,18 +398,18 @@ void __init fixup_executable(void)
 {
 #ifdef CONFIG_DEBUG_RODATA
 	/* now that we are actually fully mapped, make the start/end more fine grained */
-	if (!IS_ALIGNED((unsigned long)_stext, SECTION_SIZE)) {
+	if (!IS_ALIGNED((unsigned long)_stext, SWAPPER_BLOCK_SIZE)) {
 		unsigned long aligned_start = round_down(__pa(_stext),
-							SECTION_SIZE);
+							 SWAPPER_BLOCK_SIZE);
 
 		create_mapping(aligned_start, __phys_to_virt(aligned_start),
 				__pa(_stext) - aligned_start,
 				PAGE_KERNEL);
 	}
 
-	if (!IS_ALIGNED((unsigned long)__init_end, SECTION_SIZE)) {
+	if (!IS_ALIGNED((unsigned long)__init_end, SWAPPER_BLOCK_SIZE)) {
 		unsigned long aligned_end = round_up(__pa(__init_end),
-							SECTION_SIZE);
+							  SWAPPER_BLOCK_SIZE);
 		create_mapping(__pa(__init_end), (unsigned long)__init_end,
 				aligned_end - __pa(__init_end),
 				PAGE_KERNEL);
diff --git a/arch/parisc/include/asm/compat.h b/arch/parisc/include/asm/compat.h
index 94710cfc1ce8..0448a2c8eafb 100644
--- a/arch/parisc/include/asm/compat.h
+++ b/arch/parisc/include/asm/compat.h
@@ -206,10 +206,10 @@ struct compat_ipc64_perm {
 
 struct compat_semid64_ds {
 	struct compat_ipc64_perm sem_perm;
-	compat_time_t sem_otime;
 	unsigned int __unused1;
-	compat_time_t sem_ctime;
+	compat_time_t sem_otime;
 	unsigned int __unused2;
+	compat_time_t sem_ctime;
 	compat_ulong_t sem_nsems;
 	compat_ulong_t __unused3;
 	compat_ulong_t __unused4;
diff --git a/arch/parisc/include/uapi/asm/ipcbuf.h b/arch/parisc/include/uapi/asm/ipcbuf.h
index bd956c425785..790c4119f647 100644
--- a/arch/parisc/include/uapi/asm/ipcbuf.h
+++ b/arch/parisc/include/uapi/asm/ipcbuf.h
@@ -1,6 +1,9 @@
 #ifndef __PARISC_IPCBUF_H__
 #define __PARISC_IPCBUF_H__
 
+#include <asm/bitsperlong.h>
+#include <linux/posix_types.h>
+
 /*
  * The ipc64_perm structure for PA-RISC is almost identical to
  * kern_ipc_perm as we have always had 32-bit UIDs and GIDs in the kernel.
@@ -10,16 +13,18 @@
 
 struct ipc64_perm
 {
-	key_t           key;
-	uid_t           uid;
-	gid_t           gid;
-	uid_t           cuid;
-	gid_t           cgid;
+	__kernel_key_t		key;
+	__kernel_uid_t		uid;
+	__kernel_gid_t		gid;
+	__kernel_uid_t		cuid;
+	__kernel_gid_t		cgid;
+#if __BITS_PER_LONG != 64
 	unsigned short int	__pad1;
-	mode_t          mode;
+#endif
+	__kernel_mode_t		mode;
 	unsigned short int	__pad2;
 	unsigned short int	seq;
-	unsigned int	__pad3;
+	unsigned int		__pad3;
 	unsigned long long int __unused1;
 	unsigned long long int __unused2;
 };
diff --git a/arch/parisc/include/uapi/asm/mman.h b/arch/parisc/include/uapi/asm/mman.h
index 294d251ca7b2..2ae13ce592e8 100644
--- a/arch/parisc/include/uapi/asm/mman.h
+++ b/arch/parisc/include/uapi/asm/mman.h
@@ -46,16 +46,6 @@
 #define MADV_DONTFORK	10		/* don't inherit across fork */
 #define MADV_DOFORK	11		/* do inherit across fork */
 
-/* The range 12-64 is reserved for page size specification. */
-#define MADV_4K_PAGES   12              /* Use 4K pages  */
-#define MADV_16K_PAGES  14              /* Use 16K pages */
-#define MADV_64K_PAGES  16              /* Use 64K pages */
-#define MADV_256K_PAGES 18              /* Use 256K pages */
-#define MADV_1M_PAGES   20              /* Use 1 Megabyte pages */
-#define MADV_4M_PAGES   22              /* Use 4 Megabyte pages */
-#define MADV_16M_PAGES  24              /* Use 16 Megabyte pages */
-#define MADV_64M_PAGES  26              /* Use 64 Megabyte pages */
-
 #define MADV_MERGEABLE   65		/* KSM may merge identical pages */
 #define MADV_UNMERGEABLE 66		/* KSM may not merge identical pages */
 
diff --git a/arch/parisc/include/uapi/asm/msgbuf.h b/arch/parisc/include/uapi/asm/msgbuf.h
index 342138983914..2e83ac758e19 100644
--- a/arch/parisc/include/uapi/asm/msgbuf.h
+++ b/arch/parisc/include/uapi/asm/msgbuf.h
@@ -27,13 +27,13 @@ struct msqid64_ds {
 	unsigned int   __pad3;
 #endif
 	__kernel_time_t msg_ctime;	/* last change time */
-	unsigned int  msg_cbytes;	/* current number of bytes on queue */
-	unsigned int  msg_qnum;	/* number of messages in queue */
-	unsigned int  msg_qbytes;	/* max number of bytes on queue */
+	unsigned long msg_cbytes;	/* current number of bytes on queue */
+	unsigned long msg_qnum;		/* number of messages in queue */
+	unsigned long msg_qbytes;	/* max number of bytes on queue */
 	__kernel_pid_t msg_lspid;	/* pid of last msgsnd */
 	__kernel_pid_t msg_lrpid;	/* last receive pid */
-	unsigned int  __unused1;
-	unsigned int  __unused2;
+	unsigned long __unused1;
+	unsigned long __unused2;
 };
 
 #endif /* _PARISC_MSGBUF_H */
diff --git a/arch/parisc/include/uapi/asm/posix_types.h b/arch/parisc/include/uapi/asm/posix_types.h
index b9344256f76b..f3b5f70b9a5f 100644
--- a/arch/parisc/include/uapi/asm/posix_types.h
+++ b/arch/parisc/include/uapi/asm/posix_types.h
@@ -7,8 +7,10 @@
  * assume GCC is being used.
  */
 
+#ifndef __LP64__
 typedef unsigned short		__kernel_mode_t;
 #define __kernel_mode_t __kernel_mode_t
+#endif
 
 typedef unsigned short		__kernel_ipc_pid_t;
 #define __kernel_ipc_pid_t __kernel_ipc_pid_t
diff --git a/arch/parisc/include/uapi/asm/sembuf.h b/arch/parisc/include/uapi/asm/sembuf.h
index f01d89e30d73..c20971bf520f 100644
--- a/arch/parisc/include/uapi/asm/sembuf.h
+++ b/arch/parisc/include/uapi/asm/sembuf.h
@@ -23,9 +23,9 @@ struct semid64_ds {
 	unsigned int	__pad2;
 #endif
 	__kernel_time_t	sem_ctime;		/* last change time */
-	unsigned int	sem_nsems;		/* no. of semaphores in array */
-	unsigned int	__unused1;
-	unsigned int	__unused2;
+	unsigned long 	sem_nsems;		/* no. of semaphores in array */
+	unsigned long	__unused1;
+	unsigned long	__unused2;
 };
 
 #endif /* _PARISC_SEMBUF_H */
diff --git a/arch/parisc/include/uapi/asm/shmbuf.h b/arch/parisc/include/uapi/asm/shmbuf.h
index 8496c38560c6..750e13e77991 100644
--- a/arch/parisc/include/uapi/asm/shmbuf.h
+++ b/arch/parisc/include/uapi/asm/shmbuf.h
@@ -30,12 +30,12 @@ struct shmid64_ds {
 #if __BITS_PER_LONG != 64
 	unsigned int		__pad4;
 #endif
-	size_t			shm_segsz;	/* size of segment (bytes) */
+	__kernel_size_t		shm_segsz;	/* size of segment (bytes) */
 	__kernel_pid_t		shm_cpid;	/* pid of creator */
 	__kernel_pid_t		shm_lpid;	/* pid of last operator */
-	unsigned int		shm_nattch;	/* no. of current attaches */
-	unsigned int		__unused1;
-	unsigned int		__unused2;
+	unsigned long		shm_nattch;	/* no. of current attaches */
+	unsigned long		__unused1;
+	unsigned long		__unused2;
 };
 
 struct shminfo64 {
diff --git a/arch/parisc/include/uapi/asm/siginfo.h b/arch/parisc/include/uapi/asm/siginfo.h
index d7034728f377..1c75565d984b 100644
--- a/arch/parisc/include/uapi/asm/siginfo.h
+++ b/arch/parisc/include/uapi/asm/siginfo.h
@@ -1,6 +1,10 @@
 #ifndef _PARISC_SIGINFO_H
 #define _PARISC_SIGINFO_H
 
+#if defined(__LP64__)
+#define __ARCH_SI_PREAMBLE_SIZE   (4 * sizeof(int))
+#endif
+
 #include <asm-generic/siginfo.h>
 
 #undef NSIGTRAP
diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
index dc1ea796fd60..2264f68f3c2f 100644
--- a/arch/parisc/kernel/signal.c
+++ b/arch/parisc/kernel/signal.c
@@ -435,6 +435,55 @@ handle_signal(struct ksignal *ksig, struct pt_regs *regs, int in_syscall)
 		regs->gr[28]);
 }
 
+/*
+ * Check how the syscall number gets loaded into %r20 within
+ * the delay branch in userspace and adjust as needed.
+ */
+
+static void check_syscallno_in_delay_branch(struct pt_regs *regs)
+{
+	u32 opcode, source_reg;
+	u32 __user *uaddr;
+	int err;
+
+	/* Usually we don't have to restore %r20 (the system call number)
+	 * because it gets loaded in the delay slot of the branch external
+	 * instruction via the ldi instruction.
+	 * In some cases a register-to-register copy instruction might have
+	 * been used instead, in which case we need to copy the syscall
+	 * number into the source register before returning to userspace.
+	 */
+
+	/* A syscall is just a branch, so all we have to do is fiddle the
+	 * return pointer so that the ble instruction gets executed again.
+	 */
+	regs->gr[31] -= 8; /* delayed branching */
+
+	/* Get assembler opcode of code in delay branch */
+	uaddr = (unsigned int *) ((regs->gr[31] & ~3) + 4);
+	err = get_user(opcode, uaddr);
+	if (err)
+		return;
+
+	/* Check if delay branch uses "ldi int,%r20" */
+	if ((opcode & 0xffff0000) == 0x34140000)
+		return;	/* everything ok, just return */
+
+	/* Check if delay branch uses "nop" */
+	if (opcode == INSN_NOP)
+		return;
+
+	/* Check if delay branch uses "copy %rX,%r20" */
+	if ((opcode & 0xffe0ffff) == 0x08000254) {
+		source_reg = (opcode >> 16) & 31;
+		regs->gr[source_reg] = regs->gr[20];
+		return;
+	}
+
+	pr_warn("syscall restart: %s (pid %d): unexpected opcode 0x%08x\n",
+		current->comm, task_pid_nr(current), opcode);
+}
+
 static inline void
 syscall_restart(struct pt_regs *regs, struct k_sigaction *ka)
 {
@@ -457,10 +506,7 @@ syscall_restart(struct pt_regs *regs, struct k_sigaction *ka)
 		}
 		/* fallthrough */
 	case -ERESTARTNOINTR:
-		/* A syscall is just a branch, so all
-		 * we have to do is fiddle the return pointer.
-		 */
-		regs->gr[31] -= 8; /* delayed branching */
+		check_syscallno_in_delay_branch(regs);
 		break;
 	}
 }
@@ -510,15 +556,9 @@ insert_restart_trampoline(struct pt_regs *regs)
 	}
 	case -ERESTARTNOHAND:
 	case -ERESTARTSYS:
-	case -ERESTARTNOINTR: {
-		/* Hooray for delayed branching.  We don't
-		 * have to restore %r20 (the system call
-		 * number) because it gets loaded in the delay
-		 * slot of the branch external instruction.
-		 */
-		regs->gr[31] -= 8;
+	case -ERESTARTNOINTR:
+		check_syscallno_in_delay_branch(regs);
 		return;
-	}
 	default:
 		break;
 	}
diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index c229427fa546..c5fec4890fdf 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -23,6 +23,7 @@
 #include <linux/unistd.h>
 #include <linux/nodemask.h>	/* for node_online_map */
 #include <linux/pagemap.h>	/* for release_pages and page_cache_release */
+#include <linux/compat.h>
 
 #include <asm/pgalloc.h>
 #include <asm/pgtable.h>
@@ -30,6 +31,7 @@
 #include <asm/pdc_chassis.h>
 #include <asm/mmzone.h>
 #include <asm/sections.h>
+#include <asm/msgbuf.h>
 
 extern int  data_start;
 extern void parisc_kernel_start(void);	/* Kernel entry point in head.S */
@@ -590,6 +592,20 @@ unsigned long pcxl_dma_start __read_mostly;
 
 void __init mem_init(void)
 {
+	/* Do sanity checks on IPC (compat) structures */
+	BUILD_BUG_ON(sizeof(struct ipc64_perm) != 48);
+#ifndef CONFIG_64BIT
+	BUILD_BUG_ON(sizeof(struct semid64_ds) != 80);
+	BUILD_BUG_ON(sizeof(struct msqid64_ds) != 104);
+	BUILD_BUG_ON(sizeof(struct shmid64_ds) != 104);
+#endif
+#ifdef CONFIG_COMPAT
+	BUILD_BUG_ON(sizeof(struct compat_ipc64_perm) != sizeof(struct ipc64_perm));
+	BUILD_BUG_ON(sizeof(struct compat_semid64_ds) != 80);
+	BUILD_BUG_ON(sizeof(struct compat_msqid64_ds) != 104);
+	BUILD_BUG_ON(sizeof(struct compat_shmid64_ds) != 104);
+#endif
+
 	/* Do sanity checks on page table constants */
 	BUILD_BUG_ON(PTE_ENTRY_SIZE != sizeof(pte_t));
 	BUILD_BUG_ON(PMD_ENTRY_SIZE != sizeof(pmd_t));
diff --git a/arch/sh/include/uapi/asm/unistd_64.h b/arch/sh/include/uapi/asm/unistd_64.h
index e6820c86e8c7..47ebd5b5ed55 100644
--- a/arch/sh/include/uapi/asm/unistd_64.h
+++ b/arch/sh/include/uapi/asm/unistd_64.h
@@ -278,7 +278,7 @@
 #define __NR_fsetxattr		256
 #define __NR_getxattr		257
 #define __NR_lgetxattr		258
-#define __NR_fgetxattr		269
+#define __NR_fgetxattr		259
 #define __NR_listxattr		260
 #define __NR_llistxattr		261
 #define __NR_flistxattr		262
diff --git a/arch/x86/crypto/chacha20-ssse3-x86_64.S b/arch/x86/crypto/chacha20-ssse3-x86_64.S
index 712b13047b41..3a33124e9112 100644
--- a/arch/x86/crypto/chacha20-ssse3-x86_64.S
+++ b/arch/x86/crypto/chacha20-ssse3-x86_64.S
@@ -157,7 +157,9 @@ ENTRY(chacha20_4block_xor_ssse3)
 	# done with the slightly better performing SSSE3 byte shuffling,
 	# 7/12-bit word rotation uses traditional shift+OR.
 
-	sub		$0x40,%rsp
+	mov		%rsp,%r11
+	sub		$0x80,%rsp
+	and		$~63,%rsp
 
 	# x0..15[0-3] = s0..3[0..3]
 	movq		0x00(%rdi),%xmm1
@@ -620,6 +622,6 @@ ENTRY(chacha20_4block_xor_ssse3)
 	pxor		%xmm1,%xmm15
 	movdqu		%xmm15,0xf0(%rsi)
 
-	add		$0x40,%rsp
+	mov		%r11,%rsp
 	ret
 ENDPROC(chacha20_4block_xor_ssse3)
diff --git a/arch/x86/crypto/crc32c-pcl-intel-asm_64.S b/arch/x86/crypto/crc32c-pcl-intel-asm_64.S
index 225be06edc80..4fe27e074194 100644
--- a/arch/x86/crypto/crc32c-pcl-intel-asm_64.S
+++ b/arch/x86/crypto/crc32c-pcl-intel-asm_64.S
@@ -330,7 +330,7 @@ ENDPROC(crc_pcl)
 	## PCLMULQDQ tables
 	## Table is 128 entries x 2 words (8 bytes) each
 	################################################################
-.section	.rotata, "a", %progbits
+.section	.rodata, "a", %progbits
 .align 8
 K_table:
 	.long 0x493c7d27, 0x00000001
diff --git a/arch/xtensa/include/asm/asmmacro.h b/arch/xtensa/include/asm/asmmacro.h
index 755320f6e0bc..746dcc8b5abc 100644
--- a/arch/xtensa/include/asm/asmmacro.h
+++ b/arch/xtensa/include/asm/asmmacro.h
@@ -35,9 +35,10 @@
  * __loop  as
  *	   restart loop. 'as' register must not have been modified!
  *
- * __endla ar, at, incr
+ * __endla ar, as, incr
  *	   ar	start address (modified)
- *	   as	scratch register used by macro
+ *	   as	scratch register used by __loops/__loopi macros or
+ *		end address used by __loopt macro
  *	   inc	increment
  */
 
@@ -97,7 +98,7 @@
 	.endm
 
 /*
- * loop from ar to ax
+ * loop from ar to as
  */
 
 	.macro	__loopt	ar, as, at, incr_log2
diff --git a/arch/xtensa/include/asm/vectors.h b/arch/xtensa/include/asm/vectors.h
index a46c53f36113..986b5d0cb9e0 100644
--- a/arch/xtensa/include/asm/vectors.h
+++ b/arch/xtensa/include/asm/vectors.h
@@ -48,6 +48,9 @@
   #define LOAD_MEMORY_ADDRESS		0xD0003000
 #endif
 
+#define RESET_VECTOR1_VADDR		(VIRTUAL_MEMORY_ADDRESS + \
+					 XCHAL_RESET_VECTOR1_PADDR)
+
 #else /* !defined(CONFIG_MMU) */
   /* MMU Not being used - Virtual == Physical */
 
@@ -60,6 +63,8 @@
   /* Loaded just above possibly live vectors */
   #define LOAD_MEMORY_ADDRESS		(PLATFORM_DEFAULT_MEM_START + 0x3000)
 
+#define RESET_VECTOR1_VADDR		(XCHAL_RESET_VECTOR1_VADDR)
+
 #endif /* CONFIG_MMU */
 
 #define XC_VADDR(offset)		(VIRTUAL_MEMORY_ADDRESS  + offset)
@@ -71,10 +76,6 @@
 						VECBASE_RESET_VADDR)
 #define RESET_VECTOR_VADDR		XC_VADDR(RESET_VECTOR_VECOFS)
 
-#define RESET_VECTOR1_VECOFS		(XCHAL_RESET_VECTOR1_VADDR - \
-						VECBASE_RESET_VADDR)
-#define RESET_VECTOR1_VADDR		XC_VADDR(RESET_VECTOR1_VECOFS)
-
 #if defined(XCHAL_HAVE_VECBASE) && XCHAL_HAVE_VECBASE
 
 #define USER_VECTOR_VADDR		XC_VADDR(XCHAL_USER_VECOFS)
diff --git a/arch/xtensa/kernel/Makefile b/arch/xtensa/kernel/Makefile
index 50137bc9e150..4db730290d2d 100644
--- a/arch/xtensa/kernel/Makefile
+++ b/arch/xtensa/kernel/Makefile
@@ -16,6 +16,7 @@ obj-$(CONFIG_SMP) += smp.o mxhead.o
 obj-$(CONFIG_XTENSA_VARIANT_HAVE_PERF_EVENTS) += perf_event.o
 
 AFLAGS_head.o += -mtext-section-literals
+AFLAGS_mxhead.o += -mtext-section-literals
 
 # In the Xtensa architecture, assembly generates literals which must always
 # precede the L32R instruction with a relative offset less than 256 kB.
diff --git a/arch/xtensa/kernel/entry.S b/arch/xtensa/kernel/entry.S
index 504130357597..db5c1765b413 100644
--- a/arch/xtensa/kernel/entry.S
+++ b/arch/xtensa/kernel/entry.S
@@ -367,8 +367,10 @@ common_exception:
 	s32i	a2, a1, PT_SYSCALL
 	movi	a2, 0
 	s32i	a3, a1, PT_EXCVADDR
+#if XCHAL_HAVE_LOOPS
 	xsr	a2, lcount
 	s32i	a2, a1, PT_LCOUNT
+#endif
 
 	/* It is now save to restore the EXC_TABLE_FIXUP variable. */
 
@@ -429,11 +431,12 @@ common_exception:
 	rsync				# PS.WOE => rsync => overflow
 
 	/* Save lbeg, lend */
-
+#if XCHAL_HAVE_LOOPS
 	rsr	a4, lbeg
 	rsr	a3, lend
 	s32i	a4, a1, PT_LBEG
 	s32i	a3, a1, PT_LEND
+#endif
 
 	/* Save SCOMPARE1 */
 
@@ -724,13 +727,14 @@ common_exception_exit:
 	wsr	a3, sar
 
 	/* Restore LBEG, LEND, LCOUNT */
-
+#if XCHAL_HAVE_LOOPS
 	l32i	a2, a1, PT_LBEG
 	l32i	a3, a1, PT_LEND
 	wsr	a2, lbeg
 	l32i	a2, a1, PT_LCOUNT
 	wsr	a3, lend
 	wsr	a2, lcount
+#endif
 
 	/* We control single stepping through the ICOUNTLEVEL register. */
 
diff --git a/arch/xtensa/kernel/head.S b/arch/xtensa/kernel/head.S
index 15a461e2a0ed..9ed55649ac8e 100644
--- a/arch/xtensa/kernel/head.S
+++ b/arch/xtensa/kernel/head.S
@@ -249,7 +249,7 @@ ENTRY(_startup)
 
 	__loopt	a2, a3, a4, 2
 	s32i	a0, a2, 0
-	__endla	a2, a4, 4
+	__endla	a2, a3, 4
 
 #if XCHAL_DCACHE_IS_WRITEBACK
 
diff --git a/arch/xtensa/kernel/setup.c b/arch/xtensa/kernel/setup.c
index 28fc57ef5b86..4e06ec9769d1 100644
--- a/arch/xtensa/kernel/setup.c
+++ b/arch/xtensa/kernel/setup.c
@@ -334,7 +334,10 @@ extern char _Level5InterruptVector_text_end;
 extern char _Level6InterruptVector_text_start;
 extern char _Level6InterruptVector_text_end;
 #endif
-
+#ifdef CONFIG_SMP
+extern char _SecondaryResetVector_text_start;
+extern char _SecondaryResetVector_text_end;
+#endif
 
 
 #ifdef CONFIG_S32C1I_SELFTEST
@@ -506,6 +509,10 @@ void __init setup_arch(char **cmdline_p)
 		    __pa(&_Level6InterruptVector_text_end), 0);
 #endif
 
+#ifdef CONFIG_SMP
+	mem_reserve(__pa(&_SecondaryResetVector_text_start),
+		    __pa(&_SecondaryResetVector_text_end), 0);
+#endif
 	parse_early_param();
 	bootmem_init();
 
diff --git a/arch/xtensa/kernel/vectors.S b/arch/xtensa/kernel/vectors.S
index abcdb527f18a..fc25318e75ad 100644
--- a/arch/xtensa/kernel/vectors.S
+++ b/arch/xtensa/kernel/vectors.S
@@ -478,6 +478,9 @@ _DoubleExceptionVector_handle_exception:
 
 ENDPROC(_DoubleExceptionVector)
 
+	.end literal_prefix
+
+	.text
 /*
  * Fixup handler for TLB miss in double exception handler for window owerflow.
  * We get here with windowbase set to the window that was being spilled and
@@ -587,7 +590,6 @@ ENTRY(window_overflow_restore_a0_fixup)
 
 ENDPROC(window_overflow_restore_a0_fixup)
 
-	.end literal_prefix
 /*
  * Debug interrupt vector
  *
diff --git a/arch/xtensa/kernel/vmlinux.lds.S b/arch/xtensa/kernel/vmlinux.lds.S
index fc1bc2ba8d5d..d66cd408be13 100644
--- a/arch/xtensa/kernel/vmlinux.lds.S
+++ b/arch/xtensa/kernel/vmlinux.lds.S
@@ -166,8 +166,6 @@ SECTIONS
     RELOCATE_ENTRY(_DebugInterruptVector_text,
 		   .DebugInterruptVector.text);
 #if defined(CONFIG_SMP)
-    RELOCATE_ENTRY(_SecondaryResetVector_literal,
-		   .SecondaryResetVector.literal);
     RELOCATE_ENTRY(_SecondaryResetVector_text,
 		   .SecondaryResetVector.text);
 #endif
@@ -282,17 +280,11 @@ SECTIONS
 
 #if defined(CONFIG_SMP)
 
-  SECTION_VECTOR (_SecondaryResetVector_literal,
-		  .SecondaryResetVector.literal,
-		  RESET_VECTOR1_VADDR - 4,
-		  SIZEOF(.DoubleExceptionVector.text),
-		  .DoubleExceptionVector.text)
-
   SECTION_VECTOR (_SecondaryResetVector_text,
 		  .SecondaryResetVector.text,
 		  RESET_VECTOR1_VADDR,
-		  4,
-		  .SecondaryResetVector.literal)
+		  SIZEOF(.DoubleExceptionVector.text),
+		  .DoubleExceptionVector.text)
 
   . = LOADADDR(.SecondaryResetVector.text)+SIZEOF(.SecondaryResetVector.text);
 
diff --git a/arch/xtensa/lib/usercopy.S b/arch/xtensa/lib/usercopy.S
index ace1892a875e..7ea4dd68893e 100644
--- a/arch/xtensa/lib/usercopy.S
+++ b/arch/xtensa/lib/usercopy.S
@@ -222,8 +222,8 @@ __xtensa_copy_user:
 	loopnez	a7, .Loop2done
 #else /* !XCHAL_HAVE_LOOPS */
 	beqz	a7, .Loop2done
-	slli	a10, a7, 4
-	add	a10, a10, a3	# a10 = end of last 16B source chunk
+	slli	a12, a7, 4
+	add	a12, a12, a3	# a12 = end of last 16B source chunk
 #endif /* !XCHAL_HAVE_LOOPS */
 .Loop2:
 	EX(l32i, a7, a3,  4, l_fixup)
@@ -241,7 +241,7 @@ __xtensa_copy_user:
 	EX(s32i, a9, a5, 12, s_fixup)
 	addi	a5, a5, 16
 #if !XCHAL_HAVE_LOOPS
-	blt	a3, a10, .Loop2
+	blt	a3, a12, .Loop2
 #endif /* !XCHAL_HAVE_LOOPS */
 .Loop2done:
 	bbci.l	a4, 3, .L12
diff --git a/arch/xtensa/platforms/iss/setup.c b/arch/xtensa/platforms/iss/setup.c
index da7d18240866..391820539f0a 100644
--- a/arch/xtensa/platforms/iss/setup.c
+++ b/arch/xtensa/platforms/iss/setup.c
@@ -61,7 +61,9 @@ void platform_restart(void)
 #if XCHAL_NUM_IBREAK > 0
 			     "wsr	a2, ibreakenable\n\t"
 #endif
+#if XCHAL_HAVE_LOOPS
 			     "wsr	a2, lcount\n\t"
+#endif
 			     "movi	a2, 0x1f\n\t"
 			     "wsr	a2, ps\n\t"
 			     "isync\n\t"
diff --git a/arch/xtensa/platforms/xt2000/setup.c b/arch/xtensa/platforms/xt2000/setup.c
index b90555cb8089..87678961a8c8 100644
--- a/arch/xtensa/platforms/xt2000/setup.c
+++ b/arch/xtensa/platforms/xt2000/setup.c
@@ -72,7 +72,9 @@ void platform_restart(void)
 #if XCHAL_NUM_IBREAK > 0
 			      "wsr	a2, ibreakenable\n\t"
 #endif
+#if XCHAL_HAVE_LOOPS
 			      "wsr	a2, lcount\n\t"
+#endif
 			      "movi	a2, 0x1f\n\t"
 			      "wsr	a2, ps\n\t"
 			      "isync\n\t"
diff --git a/arch/xtensa/platforms/xtfpga/setup.c b/arch/xtensa/platforms/xtfpga/setup.c
index b4cf70e535ab..e9f65f79cf2e 100644
--- a/arch/xtensa/platforms/xtfpga/setup.c
+++ b/arch/xtensa/platforms/xtfpga/setup.c
@@ -63,7 +63,9 @@ void platform_restart(void)
 #if XCHAL_NUM_IBREAK > 0
 			      "wsr	a2, ibreakenable\n\t"
 #endif
+#if XCHAL_HAVE_LOOPS
 			      "wsr	a2, lcount\n\t"
+#endif
 			      "movi	a2, 0x1f\n\t"
 			      "wsr	a2, ps\n\t"
 			      "isync\n\t"
diff --git a/block/blk-core.c b/block/blk-core.c
index 18e92a6645e2..b128c1609347 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -1616,8 +1616,6 @@ static void blk_queue_bio(struct request_queue *q, struct bio *bio)
 	struct request *req;
 	unsigned int request_count = 0;
 
-	blk_queue_split(q, &bio, q->bio_split);
-
 	/*
 	 * low level driver can indicate that it wants pages above a
 	 * certain limit bounced to low memory (ie for highmem, or even
@@ -1625,6 +1623,8 @@ static void blk_queue_bio(struct request_queue *q, struct bio *bio)
 	 */
 	blk_queue_bounce(q, &bio);
 
+	blk_queue_split(q, &bio, q->bio_split);
+
 	if (bio_integrity_enabled(bio) && bio_integrity_prep(bio)) {
 		bio->bi_error = -EIO;
 		bio_endio(bio);
@@ -2023,7 +2023,8 @@ void submit_bio(int rw, struct bio *bio)
 EXPORT_SYMBOL(submit_bio);
 
 /**
- * blk_rq_check_limits - Helper function to check a request for the queue limit
+ * blk_cloned_rq_check_limits - Helper function to check a cloned request
+ *                              for new the queue limits
  * @q:  the queue
  * @rq: the request being checked
  *
@@ -2034,20 +2035,13 @@ EXPORT_SYMBOL(submit_bio);
  *    after it is inserted to @q, it should be checked against @q before
  *    the insertion using this generic function.
  *
- *    This function should also be useful for request stacking drivers
- *    in some cases below, so export this function.
  *    Request stacking drivers like request-based dm may change the queue
- *    limits while requests are in the queue (e.g. dm's table swapping).
- *    Such request stacking drivers should check those requests against
- *    the new queue limits again when they dispatch those requests,
- *    although such checkings are also done against the old queue limits
- *    when submitting requests.
+ *    limits when retrying requests on other queues. Those requests need
+ *    to be checked against the new queue limits again during dispatch.
  */
-int blk_rq_check_limits(struct request_queue *q, struct request *rq)
+static int blk_cloned_rq_check_limits(struct request_queue *q,
+				      struct request *rq)
 {
-	if (!rq_mergeable(rq))
-		return 0;
-
 	if (blk_rq_sectors(rq) > blk_queue_get_max_sectors(q, rq->cmd_flags)) {
 		printk(KERN_ERR "%s: over max size limit.\n", __func__);
 		return -EIO;
@@ -2067,7 +2061,6 @@ int blk_rq_check_limits(struct request_queue *q, struct request *rq)
 
 	return 0;
 }
-EXPORT_SYMBOL_GPL(blk_rq_check_limits);
 
 /**
  * blk_insert_cloned_request - Helper for stacking drivers to submit a request
@@ -2079,7 +2072,7 @@ int blk_insert_cloned_request(struct request_queue *q, struct request *rq)
 	unsigned long flags;
 	int where = ELEVATOR_INSERT_BACK;
 
-	if (blk_rq_check_limits(q, rq))
+	if (blk_cloned_rq_check_limits(q, rq))
 		return -EIO;
 
 	if (rq->rq_disk &&
diff --git a/crypto/ablkcipher.c b/crypto/ablkcipher.c
index b4ffc5be1a93..e5b5721809e2 100644
--- a/crypto/ablkcipher.c
+++ b/crypto/ablkcipher.c
@@ -277,12 +277,12 @@ static int ablkcipher_walk_first(struct ablkcipher_request *req,
 	if (WARN_ON_ONCE(in_irq()))
 		return -EDEADLK;
 
+	walk->iv = req->info;
 	walk->nbytes = walk->total;
 	if (unlikely(!walk->total))
 		return 0;
 
 	walk->iv_buffer = NULL;
-	walk->iv = req->info;
 	if (unlikely(((unsigned long)walk->iv & alignmask))) {
 		int err = ablkcipher_copy_iv(walk, tfm, alignmask);
 
diff --git a/crypto/af_alg.c b/crypto/af_alg.c
index a8e7aa3e257b..f5e18c2a4852 100644
--- a/crypto/af_alg.c
+++ b/crypto/af_alg.c
@@ -76,6 +76,8 @@ int af_alg_register_type(const struct af_alg_type *type)
 		goto unlock;
 
 	type->ops->owner = THIS_MODULE;
+	if (type->ops_nokey)
+		type->ops_nokey->owner = THIS_MODULE;
 	node->type = type;
 	list_add(&node->list, &alg_types);
 	err = 0;
@@ -125,6 +127,26 @@ int af_alg_release(struct socket *sock)
 }
 EXPORT_SYMBOL_GPL(af_alg_release);
 
+void af_alg_release_parent(struct sock *sk)
+{
+	struct alg_sock *ask = alg_sk(sk);
+	unsigned int nokey = ask->nokey_refcnt;
+	bool last = nokey && !ask->refcnt;
+
+	sk = ask->parent;
+	ask = alg_sk(sk);
+
+	lock_sock(sk);
+	ask->nokey_refcnt -= nokey;
+	if (!last)
+		last = !--ask->refcnt;
+	release_sock(sk);
+
+	if (last)
+		sock_put(sk);
+}
+EXPORT_SYMBOL_GPL(af_alg_release_parent);
+
 static int alg_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len)
 {
 	const u32 forbidden = CRYPTO_ALG_INTERNAL;
@@ -133,6 +155,7 @@ static int alg_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len)
 	struct sockaddr_alg *sa = (void *)uaddr;
 	const struct af_alg_type *type;
 	void *private;
+	int err;
 
 	if (sock->state == SS_CONNECTED)
 		return -EINVAL;
@@ -160,16 +183,22 @@ static int alg_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len)
 		return PTR_ERR(private);
 	}
 
+	err = -EBUSY;
 	lock_sock(sk);
+	if (ask->refcnt | ask->nokey_refcnt)
+		goto unlock;
 
 	swap(ask->type, type);
 	swap(ask->private, private);
 
+	err = 0;
+
+unlock:
 	release_sock(sk);
 
 	alg_do_release(type, private);
 
-	return 0;
+	return err;
 }
 
 static int alg_setkey(struct sock *sk, char __user *ukey,
@@ -202,11 +231,15 @@ static int alg_setsockopt(struct socket *sock, int level, int optname,
 	struct sock *sk = sock->sk;
 	struct alg_sock *ask = alg_sk(sk);
 	const struct af_alg_type *type;
-	int err = -ENOPROTOOPT;
+	int err = -EBUSY;
 
 	lock_sock(sk);
+	if (ask->refcnt)
+		goto unlock;
+
 	type = ask->type;
 
+	err = -ENOPROTOOPT;
 	if (level != SOL_ALG || !type)
 		goto unlock;
 
@@ -238,6 +271,7 @@ int af_alg_accept(struct sock *sk, struct socket *newsock)
 	struct alg_sock *ask = alg_sk(sk);
 	const struct af_alg_type *type;
 	struct sock *sk2;
+	unsigned int nokey;
 	int err;
 
 	lock_sock(sk);
@@ -257,20 +291,29 @@ int af_alg_accept(struct sock *sk, struct socket *newsock)
 	security_sk_clone(sk, sk2);
 
 	err = type->accept(ask->private, sk2);
-	if (err) {
-		sk_free(sk2);
+
+	nokey = err == -ENOKEY;
+	if (nokey && type->accept_nokey)
+		err = type->accept_nokey(ask->private, sk2);
+
+	if (err)
 		goto unlock;
-	}
 
 	sk2->sk_family = PF_ALG;
 
-	sock_hold(sk);
+	if (nokey || !ask->refcnt++)
+		sock_hold(sk);
+	ask->nokey_refcnt += nokey;
 	alg_sk(sk2)->parent = sk;
 	alg_sk(sk2)->type = type;
+	alg_sk(sk2)->nokey_refcnt = nokey;
 
 	newsock->ops = type->ops;
 	newsock->state = SS_CONNECTED;
 
+	if (nokey)
+		newsock->ops = type->ops_nokey;
+
 	err = 0;
 
 unlock:
diff --git a/crypto/ahash.c b/crypto/ahash.c
index 9c1dc8d6106a..d19b52324cf5 100644
--- a/crypto/ahash.c
+++ b/crypto/ahash.c
@@ -451,6 +451,7 @@ static int crypto_ahash_init_tfm(struct crypto_tfm *tfm)
 	struct ahash_alg *alg = crypto_ahash_alg(hash);
 
 	hash->setkey = ahash_nosetkey;
+	hash->has_setkey = false;
 	hash->export = ahash_no_export;
 	hash->import = ahash_no_import;
 
@@ -463,8 +464,10 @@ static int crypto_ahash_init_tfm(struct crypto_tfm *tfm)
 	hash->finup = alg->finup ?: ahash_def_finup;
 	hash->digest = alg->digest;
 
-	if (alg->setkey)
+	if (alg->setkey) {
 		hash->setkey = alg->setkey;
+		hash->has_setkey = true;
+	}
 	if (alg->export)
 		hash->export = alg->export;
 	if (alg->import)
diff --git a/crypto/algif_hash.c b/crypto/algif_hash.c
index 1396ad0787fc..68a5ceaa04c8 100644
--- a/crypto/algif_hash.c
+++ b/crypto/algif_hash.c
@@ -34,6 +34,11 @@ struct hash_ctx {
 	struct ahash_request req;
 };
 
+struct algif_hash_tfm {
+	struct crypto_ahash *hash;
+	bool has_key;
+};
+
 static int hash_sendmsg(struct socket *sock, struct msghdr *msg,
 			size_t ignored)
 {
@@ -49,7 +54,8 @@ static int hash_sendmsg(struct socket *sock, struct msghdr *msg,
 
 	lock_sock(sk);
 	if (!ctx->more) {
-		err = crypto_ahash_init(&ctx->req);
+		err = af_alg_wait_for_completion(crypto_ahash_init(&ctx->req),
+						&ctx->completion);
 		if (err)
 			goto unlock;
 	}
@@ -120,6 +126,7 @@ static ssize_t hash_sendpage(struct socket *sock, struct page *page,
 	} else {
 		if (!ctx->more) {
 			err = crypto_ahash_init(&ctx->req);
+			err = af_alg_wait_for_completion(err, &ctx->completion);
 			if (err)
 				goto unlock;
 		}
@@ -181,9 +188,14 @@ static int hash_accept(struct socket *sock, struct socket *newsock, int flags)
 	struct sock *sk2;
 	struct alg_sock *ask2;
 	struct hash_ctx *ctx2;
+	bool more;
 	int err;
 
-	err = crypto_ahash_export(req, state);
+	lock_sock(sk);
+	more = ctx->more;
+	err = more ? crypto_ahash_export(req, state) : 0;
+	release_sock(sk);
+
 	if (err)
 		return err;
 
@@ -194,7 +206,10 @@ static int hash_accept(struct socket *sock, struct socket *newsock, int flags)
 	sk2 = newsock->sk;
 	ask2 = alg_sk(sk2);
 	ctx2 = ask2->private;
-	ctx2->more = 1;
+	ctx2->more = more;
+
+	if (!more)
+		return err;
 
 	err = crypto_ahash_import(&ctx2->req, state);
 	if (err) {
@@ -227,19 +242,151 @@ static struct proto_ops algif_hash_ops = {
 	.accept		=	hash_accept,
 };
 
+static int hash_check_key(struct socket *sock)
+{
+	int err = 0;
+	struct sock *psk;
+	struct alg_sock *pask;
+	struct algif_hash_tfm *tfm;
+	struct sock *sk = sock->sk;
+	struct alg_sock *ask = alg_sk(sk);
+
+	lock_sock(sk);
+	if (ask->refcnt)
+		goto unlock_child;
+
+	psk = ask->parent;
+	pask = alg_sk(ask->parent);
+	tfm = pask->private;
+
+	err = -ENOKEY;
+	lock_sock_nested(psk, SINGLE_DEPTH_NESTING);
+	if (!tfm->has_key)
+		goto unlock;
+
+	if (!pask->refcnt++)
+		sock_hold(psk);
+
+	ask->refcnt = 1;
+	sock_put(psk);
+
+	err = 0;
+
+unlock:
+	release_sock(psk);
+unlock_child:
+	release_sock(sk);
+
+	return err;
+}
+
+static int hash_sendmsg_nokey(struct socket *sock, struct msghdr *msg,
+			      size_t size)
+{
+	int err;
+
+	err = hash_check_key(sock);
+	if (err)
+		return err;
+
+	return hash_sendmsg(sock, msg, size);
+}
+
+static ssize_t hash_sendpage_nokey(struct socket *sock, struct page *page,
+				   int offset, size_t size, int flags)
+{
+	int err;
+
+	err = hash_check_key(sock);
+	if (err)
+		return err;
+
+	return hash_sendpage(sock, page, offset, size, flags);
+}
+
+static int hash_recvmsg_nokey(struct socket *sock, struct msghdr *msg,
+			      size_t ignored, int flags)
+{
+	int err;
+
+	err = hash_check_key(sock);
+	if (err)
+		return err;
+
+	return hash_recvmsg(sock, msg, ignored, flags);
+}
+
+static int hash_accept_nokey(struct socket *sock, struct socket *newsock,
+			     int flags)
+{
+	int err;
+
+	err = hash_check_key(sock);
+	if (err)
+		return err;
+
+	return hash_accept(sock, newsock, flags);
+}
+
+static struct proto_ops algif_hash_ops_nokey = {
+	.family		=	PF_ALG,
+
+	.connect	=	sock_no_connect,
+	.socketpair	=	sock_no_socketpair,
+	.getname	=	sock_no_getname,
+	.ioctl		=	sock_no_ioctl,
+	.listen		=	sock_no_listen,
+	.shutdown	=	sock_no_shutdown,
+	.getsockopt	=	sock_no_getsockopt,
+	.mmap		=	sock_no_mmap,
+	.bind		=	sock_no_bind,
+	.setsockopt	=	sock_no_setsockopt,
+	.poll		=	sock_no_poll,
+
+	.release	=	af_alg_release,
+	.sendmsg	=	hash_sendmsg_nokey,
+	.sendpage	=	hash_sendpage_nokey,
+	.recvmsg	=	hash_recvmsg_nokey,
+	.accept		=	hash_accept_nokey,
+};
+
 static void *hash_bind(const char *name, u32 type, u32 mask)
 {
-	return crypto_alloc_ahash(name, type, mask);
+	struct algif_hash_tfm *tfm;
+	struct crypto_ahash *hash;
+
+	tfm = kzalloc(sizeof(*tfm), GFP_KERNEL);
+	if (!tfm)
+		return ERR_PTR(-ENOMEM);
+
+	hash = crypto_alloc_ahash(name, type, mask);
+	if (IS_ERR(hash)) {
+		kfree(tfm);
+		return ERR_CAST(hash);
+	}
+
+	tfm->hash = hash;
+
+	return tfm;
 }
 
 static void hash_release(void *private)
 {
-	crypto_free_ahash(private);
+	struct algif_hash_tfm *tfm = private;
+
+	crypto_free_ahash(tfm->hash);
+	kfree(tfm);
 }
 
 static int hash_setkey(void *private, const u8 *key, unsigned int keylen)
 {
-	return crypto_ahash_setkey(private, key, keylen);
+	struct algif_hash_tfm *tfm = private;
+	int err;
+
+	err = crypto_ahash_setkey(tfm->hash, key, keylen);
+	tfm->has_key = !err;
+
+	return err;
 }
 
 static void hash_sock_destruct(struct sock *sk)
@@ -253,12 +400,14 @@ static void hash_sock_destruct(struct sock *sk)
 	af_alg_release_parent(sk);
 }
 
-static int hash_accept_parent(void *private, struct sock *sk)
+static int hash_accept_parent_nokey(void *private, struct sock *sk)
 {
 	struct hash_ctx *ctx;
 	struct alg_sock *ask = alg_sk(sk);
-	unsigned len = sizeof(*ctx) + crypto_ahash_reqsize(private);
-	unsigned ds = crypto_ahash_digestsize(private);
+	struct algif_hash_tfm *tfm = private;
+	struct crypto_ahash *hash = tfm->hash;
+	unsigned len = sizeof(*ctx) + crypto_ahash_reqsize(hash);
+	unsigned ds = crypto_ahash_digestsize(hash);
 
 	ctx = sock_kmalloc(sk, len, GFP_KERNEL);
 	if (!ctx)
@@ -278,7 +427,7 @@ static int hash_accept_parent(void *private, struct sock *sk)
 
 	ask->private = ctx;
 
-	ahash_request_set_tfm(&ctx->req, private);
+	ahash_request_set_tfm(&ctx->req, hash);
 	ahash_request_set_callback(&ctx->req, CRYPTO_TFM_REQ_MAY_BACKLOG,
 				   af_alg_complete, &ctx->completion);
 
@@ -287,12 +436,24 @@ static int hash_accept_parent(void *private, struct sock *sk)
 	return 0;
 }
 
+static int hash_accept_parent(void *private, struct sock *sk)
+{
+	struct algif_hash_tfm *tfm = private;
+
+	if (!tfm->has_key && crypto_ahash_has_setkey(tfm->hash))
+		return -ENOKEY;
+
+	return hash_accept_parent_nokey(private, sk);
+}
+
 static const struct af_alg_type algif_type_hash = {
 	.bind		=	hash_bind,
 	.release	=	hash_release,
 	.setkey		=	hash_setkey,
 	.accept		=	hash_accept_parent,
+	.accept_nokey	=	hash_accept_parent_nokey,
 	.ops		=	&algif_hash_ops,
+	.ops_nokey	=	&algif_hash_ops_nokey,
 	.name		=	"hash",
 	.owner		=	THIS_MODULE
 };
diff --git a/crypto/algif_skcipher.c b/crypto/algif_skcipher.c
index af31a0ee4057..8ea54ac958ac 100644
--- a/crypto/algif_skcipher.c
+++ b/crypto/algif_skcipher.c
@@ -31,6 +31,11 @@ struct skcipher_sg_list {
 	struct scatterlist sg[0];
 };
 
+struct skcipher_tfm {
+	struct crypto_skcipher *skcipher;
+	bool has_key;
+};
+
 struct skcipher_ctx {
 	struct list_head tsgl;
 	struct af_alg_sgl rsgl;
@@ -47,7 +52,7 @@ struct skcipher_ctx {
 	bool merge;
 	bool enc;
 
-	struct ablkcipher_request req;
+	struct skcipher_request req;
 };
 
 struct skcipher_async_rsgl {
@@ -60,18 +65,10 @@ struct skcipher_async_req {
 	struct skcipher_async_rsgl first_sgl;
 	struct list_head list;
 	struct scatterlist *tsg;
-	char iv[];
+	atomic_t *inflight;
+	struct skcipher_request req;
 };
 
-#define GET_SREQ(areq, ctx) (struct skcipher_async_req *)((char *)areq + \
-	crypto_ablkcipher_reqsize(crypto_ablkcipher_reqtfm(&ctx->req)))
-
-#define GET_REQ_SIZE(ctx) \
-	crypto_ablkcipher_reqsize(crypto_ablkcipher_reqtfm(&ctx->req))
-
-#define GET_IV_SIZE(ctx) \
-	crypto_ablkcipher_ivsize(crypto_ablkcipher_reqtfm(&ctx->req))
-
 #define MAX_SGL_ENTS ((4096 - sizeof(struct skcipher_sg_list)) / \
 		      sizeof(struct scatterlist) - 1)
 
@@ -97,15 +94,12 @@ static void skcipher_free_async_sgls(struct skcipher_async_req *sreq)
 
 static void skcipher_async_cb(struct crypto_async_request *req, int err)
 {
-	struct sock *sk = req->data;
-	struct alg_sock *ask = alg_sk(sk);
-	struct skcipher_ctx *ctx = ask->private;
-	struct skcipher_async_req *sreq = GET_SREQ(req, ctx);
+	struct skcipher_async_req *sreq = req->data;
 	struct kiocb *iocb = sreq->iocb;
 
-	atomic_dec(&ctx->inflight);
+	atomic_dec(sreq->inflight);
 	skcipher_free_async_sgls(sreq);
-	kfree(req);
+	kzfree(sreq);
 	iocb->ki_complete(iocb, err, err);
 }
 
@@ -301,9 +295,12 @@ static int skcipher_sendmsg(struct socket *sock, struct msghdr *msg,
 {
 	struct sock *sk = sock->sk;
 	struct alg_sock *ask = alg_sk(sk);
+	struct sock *psk = ask->parent;
+	struct alg_sock *pask = alg_sk(psk);
 	struct skcipher_ctx *ctx = ask->private;
-	struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(&ctx->req);
-	unsigned ivsize = crypto_ablkcipher_ivsize(tfm);
+	struct skcipher_tfm *skc = pask->private;
+	struct crypto_skcipher *tfm = skc->skcipher;
+	unsigned ivsize = crypto_skcipher_ivsize(tfm);
 	struct skcipher_sg_list *sgl;
 	struct af_alg_control con = {};
 	long copied = 0;
@@ -387,7 +384,8 @@ static int skcipher_sendmsg(struct socket *sock, struct msghdr *msg,
 
 		sgl = list_entry(ctx->tsgl.prev, struct skcipher_sg_list, list);
 		sg = sgl->sg;
-		sg_unmark_end(sg + sgl->cur);
+		if (sgl->cur)
+			sg_unmark_end(sg + sgl->cur - 1);
 		do {
 			i = sgl->cur;
 			plen = min_t(int, len, PAGE_SIZE);
@@ -503,37 +501,43 @@ static int skcipher_recvmsg_async(struct socket *sock, struct msghdr *msg,
 {
 	struct sock *sk = sock->sk;
 	struct alg_sock *ask = alg_sk(sk);
+	struct sock *psk = ask->parent;
+	struct alg_sock *pask = alg_sk(psk);
 	struct skcipher_ctx *ctx = ask->private;
+	struct skcipher_tfm *skc = pask->private;
+	struct crypto_skcipher *tfm = skc->skcipher;
 	struct skcipher_sg_list *sgl;
 	struct scatterlist *sg;
 	struct skcipher_async_req *sreq;
-	struct ablkcipher_request *req;
+	struct skcipher_request *req;
 	struct skcipher_async_rsgl *last_rsgl = NULL;
-	unsigned int txbufs = 0, len = 0, tx_nents = skcipher_all_sg_nents(ctx);
-	unsigned int reqlen = sizeof(struct skcipher_async_req) +
-				GET_REQ_SIZE(ctx) + GET_IV_SIZE(ctx);
+	unsigned int txbufs = 0, len = 0, tx_nents;
+	unsigned int reqsize = crypto_skcipher_reqsize(tfm);
+	unsigned int ivsize = crypto_skcipher_ivsize(tfm);
 	int err = -ENOMEM;
 	bool mark = false;
+	char *iv;
 
-	lock_sock(sk);
-	req = kmalloc(reqlen, GFP_KERNEL);
-	if (unlikely(!req))
-		goto unlock;
+	sreq = kzalloc(sizeof(*sreq) + reqsize + ivsize, GFP_KERNEL);
+	if (unlikely(!sreq))
+		goto out;
 
-	sreq = GET_SREQ(req, ctx);
+	req = &sreq->req;
+	iv = (char *)(req + 1) + reqsize;
 	sreq->iocb = msg->msg_iocb;
-	memset(&sreq->first_sgl, '\0', sizeof(struct skcipher_async_rsgl));
 	INIT_LIST_HEAD(&sreq->list);
+	sreq->inflight = &ctx->inflight;
+
+	lock_sock(sk);
+	tx_nents = skcipher_all_sg_nents(ctx);
 	sreq->tsg = kcalloc(tx_nents, sizeof(*sg), GFP_KERNEL);
-	if (unlikely(!sreq->tsg)) {
-		kfree(req);
+	if (unlikely(!sreq->tsg))
 		goto unlock;
-	}
 	sg_init_table(sreq->tsg, tx_nents);
-	memcpy(sreq->iv, ctx->iv, GET_IV_SIZE(ctx));
-	ablkcipher_request_set_tfm(req, crypto_ablkcipher_reqtfm(&ctx->req));
-	ablkcipher_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
-					skcipher_async_cb, sk);
+	memcpy(iv, ctx->iv, ivsize);
+	skcipher_request_set_tfm(req, tfm);
+	skcipher_request_set_callback(req, CRYPTO_TFM_REQ_MAY_SLEEP,
+				      skcipher_async_cb, sreq);
 
 	while (iov_iter_count(&msg->msg_iter)) {
 		struct skcipher_async_rsgl *rsgl;
@@ -608,21 +612,23 @@ static int skcipher_recvmsg_async(struct socket *sock, struct msghdr *msg,
 	if (mark)
 		sg_mark_end(sreq->tsg + txbufs - 1);
 
-	ablkcipher_request_set_crypt(req, sreq->tsg, sreq->first_sgl.sgl.sg,
-				     len, sreq->iv);
-	err = ctx->enc ? crypto_ablkcipher_encrypt(req) :
-			 crypto_ablkcipher_decrypt(req);
+	skcipher_request_set_crypt(req, sreq->tsg, sreq->first_sgl.sgl.sg,
+				   len, iv);
+	err = ctx->enc ? crypto_skcipher_encrypt(req) :
+			 crypto_skcipher_decrypt(req);
 	if (err == -EINPROGRESS) {
 		atomic_inc(&ctx->inflight);
 		err = -EIOCBQUEUED;
+		sreq = NULL;
 		goto unlock;
 	}
 free:
 	skcipher_free_async_sgls(sreq);
-	kfree(req);
 unlock:
 	skcipher_wmem_wakeup(sk);
 	release_sock(sk);
+	kzfree(sreq);
+out:
 	return err;
 }
 
@@ -631,9 +637,12 @@ static int skcipher_recvmsg_sync(struct socket *sock, struct msghdr *msg,
 {
 	struct sock *sk = sock->sk;
 	struct alg_sock *ask = alg_sk(sk);
+	struct sock *psk = ask->parent;
+	struct alg_sock *pask = alg_sk(psk);
 	struct skcipher_ctx *ctx = ask->private;
-	unsigned bs = crypto_ablkcipher_blocksize(crypto_ablkcipher_reqtfm(
-		&ctx->req));
+	struct skcipher_tfm *skc = pask->private;
+	struct crypto_skcipher *tfm = skc->skcipher;
+	unsigned bs = crypto_skcipher_blocksize(tfm);
 	struct skcipher_sg_list *sgl;
 	struct scatterlist *sg;
 	int err = -EAGAIN;
@@ -642,13 +651,6 @@ static int skcipher_recvmsg_sync(struct socket *sock, struct msghdr *msg,
 
 	lock_sock(sk);
 	while (msg_data_left(msg)) {
-		sgl = list_first_entry(&ctx->tsgl,
-				       struct skcipher_sg_list, list);
-		sg = sgl->sg;
-
-		while (!sg->length)
-			sg++;
-
 		if (!ctx->used) {
 			err = skcipher_wait_for_data(sk, flags);
 			if (err)
@@ -669,14 +671,20 @@ static int skcipher_recvmsg_sync(struct socket *sock, struct msghdr *msg,
 		if (!used)
 			goto free;
 
-		ablkcipher_request_set_crypt(&ctx->req, sg,
-					     ctx->rsgl.sg, used,
-					     ctx->iv);
+		sgl = list_first_entry(&ctx->tsgl,
+				       struct skcipher_sg_list, list);
+		sg = sgl->sg;
+
+		while (!sg->length)
+			sg++;
+
+		skcipher_request_set_crypt(&ctx->req, sg, ctx->rsgl.sg, used,
+					   ctx->iv);
 
 		err = af_alg_wait_for_completion(
 				ctx->enc ?
-					crypto_ablkcipher_encrypt(&ctx->req) :
-					crypto_ablkcipher_decrypt(&ctx->req),
+					crypto_skcipher_encrypt(&ctx->req) :
+					crypto_skcipher_decrypt(&ctx->req),
 				&ctx->completion);
 
 free:
@@ -749,19 +757,139 @@ static struct proto_ops algif_skcipher_ops = {
 	.poll		=	skcipher_poll,
 };
 
+static int skcipher_check_key(struct socket *sock)
+{
+	int err = 0;
+	struct sock *psk;
+	struct alg_sock *pask;
+	struct skcipher_tfm *tfm;
+	struct sock *sk = sock->sk;
+	struct alg_sock *ask = alg_sk(sk);
+
+	lock_sock(sk);
+	if (ask->refcnt)
+		goto unlock_child;
+
+	psk = ask->parent;
+	pask = alg_sk(ask->parent);
+	tfm = pask->private;
+
+	err = -ENOKEY;
+	lock_sock_nested(psk, SINGLE_DEPTH_NESTING);
+	if (!tfm->has_key)
+		goto unlock;
+
+	if (!pask->refcnt++)
+		sock_hold(psk);
+
+	ask->refcnt = 1;
+	sock_put(psk);
+
+	err = 0;
+
+unlock:
+	release_sock(psk);
+unlock_child:
+	release_sock(sk);
+
+	return err;
+}
+
+static int skcipher_sendmsg_nokey(struct socket *sock, struct msghdr *msg,
+				  size_t size)
+{
+	int err;
+
+	err = skcipher_check_key(sock);
+	if (err)
+		return err;
+
+	return skcipher_sendmsg(sock, msg, size);
+}
+
+static ssize_t skcipher_sendpage_nokey(struct socket *sock, struct page *page,
+				       int offset, size_t size, int flags)
+{
+	int err;
+
+	err = skcipher_check_key(sock);
+	if (err)
+		return err;
+
+	return skcipher_sendpage(sock, page, offset, size, flags);
+}
+
+static int skcipher_recvmsg_nokey(struct socket *sock, struct msghdr *msg,
+				  size_t ignored, int flags)
+{
+	int err;
+
+	err = skcipher_check_key(sock);
+	if (err)
+		return err;
+
+	return skcipher_recvmsg(sock, msg, ignored, flags);
+}
+
+static struct proto_ops algif_skcipher_ops_nokey = {
+	.family		=	PF_ALG,
+
+	.connect	=	sock_no_connect,
+	.socketpair	=	sock_no_socketpair,
+	.getname	=	sock_no_getname,
+	.ioctl		=	sock_no_ioctl,
+	.listen		=	sock_no_listen,
+	.shutdown	=	sock_no_shutdown,
+	.getsockopt	=	sock_no_getsockopt,
+	.mmap		=	sock_no_mmap,
+	.bind		=	sock_no_bind,
+	.accept		=	sock_no_accept,
+	.setsockopt	=	sock_no_setsockopt,
+
+	.release	=	af_alg_release,
+	.sendmsg	=	skcipher_sendmsg_nokey,
+	.sendpage	=	skcipher_sendpage_nokey,
+	.recvmsg	=	skcipher_recvmsg_nokey,
+	.poll		=	skcipher_poll,
+};
+
 static void *skcipher_bind(const char *name, u32 type, u32 mask)
 {
-	return crypto_alloc_ablkcipher(name, type, mask);
+	struct skcipher_tfm *tfm;
+	struct crypto_skcipher *skcipher;
+
+	tfm = kzalloc(sizeof(*tfm), GFP_KERNEL);
+	if (!tfm)
+		return ERR_PTR(-ENOMEM);
+
+	skcipher = crypto_alloc_skcipher(name, type, mask);
+	if (IS_ERR(skcipher)) {
+		kfree(tfm);
+		return ERR_CAST(skcipher);
+	}
+
+	tfm->skcipher = skcipher;
+
+	return tfm;
 }
 
 static void skcipher_release(void *private)
 {
-	crypto_free_ablkcipher(private);
+	struct skcipher_tfm *tfm = private;
+
+	crypto_free_skcipher(tfm->skcipher);
+	kfree(tfm);
 }
 
 static int skcipher_setkey(void *private, const u8 *key, unsigned int keylen)
 {
-	return crypto_ablkcipher_setkey(private, key, keylen);
+	struct skcipher_tfm *tfm = private;
+	int err;
+
+	err = crypto_skcipher_setkey(tfm->skcipher, key, keylen);
+	tfm->has_key = !err;
+
+	return err;
 }
 
 static void skcipher_wait(struct sock *sk)
@@ -778,35 +906,37 @@ static void skcipher_sock_destruct(struct sock *sk)
 {
 	struct alg_sock *ask = alg_sk(sk);
 	struct skcipher_ctx *ctx = ask->private;
-	struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(&ctx->req);
+	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(&ctx->req);
 
 	if (atomic_read(&ctx->inflight))
 		skcipher_wait(sk);
 
 	skcipher_free_sgl(sk);
-	sock_kzfree_s(sk, ctx->iv, crypto_ablkcipher_ivsize(tfm));
+	sock_kzfree_s(sk, ctx->iv, crypto_skcipher_ivsize(tfm));
 	sock_kfree_s(sk, ctx, ctx->len);
 	af_alg_release_parent(sk);
 }
 
-static int skcipher_accept_parent(void *private, struct sock *sk)
+static int skcipher_accept_parent_nokey(void *private, struct sock *sk)
 {
 	struct skcipher_ctx *ctx;
 	struct alg_sock *ask = alg_sk(sk);
-	unsigned int len = sizeof(*ctx) + crypto_ablkcipher_reqsize(private);
+	struct skcipher_tfm *tfm = private;
+	struct crypto_skcipher *skcipher = tfm->skcipher;
+	unsigned int len = sizeof(*ctx) + crypto_skcipher_reqsize(skcipher);
 
 	ctx = sock_kmalloc(sk, len, GFP_KERNEL);
 	if (!ctx)
 		return -ENOMEM;
 
-	ctx->iv = sock_kmalloc(sk, crypto_ablkcipher_ivsize(private),
+	ctx->iv = sock_kmalloc(sk, crypto_skcipher_ivsize(skcipher),
 			       GFP_KERNEL);
 	if (!ctx->iv) {
 		sock_kfree_s(sk, ctx, len);
 		return -ENOMEM;
 	}
 
-	memset(ctx->iv, 0, crypto_ablkcipher_ivsize(private));
+	memset(ctx->iv, 0, crypto_skcipher_ivsize(skcipher));
 
 	INIT_LIST_HEAD(&ctx->tsgl);
 	ctx->len = len;
@@ -819,21 +949,34 @@ static int skcipher_accept_parent(void *private, struct sock *sk)
 
 	ask->private = ctx;
 
-	ablkcipher_request_set_tfm(&ctx->req, private);
-	ablkcipher_request_set_callback(&ctx->req, CRYPTO_TFM_REQ_MAY_BACKLOG,
-					af_alg_complete, &ctx->completion);
+	skcipher_request_set_tfm(&ctx->req, skcipher);
+	skcipher_request_set_callback(&ctx->req, CRYPTO_TFM_REQ_MAY_SLEEP |
+						 CRYPTO_TFM_REQ_MAY_BACKLOG,
+				      af_alg_complete, &ctx->completion);
 
 	sk->sk_destruct = skcipher_sock_destruct;
 
 	return 0;
 }
 
+static int skcipher_accept_parent(void *private, struct sock *sk)
+{
+	struct skcipher_tfm *tfm = private;
+
+	if (!tfm->has_key && crypto_skcipher_has_setkey(tfm->skcipher))
+		return -ENOKEY;
+
+	return skcipher_accept_parent_nokey(private, sk);
+}
+
 static const struct af_alg_type algif_type_skcipher = {
 	.bind		=	skcipher_bind,
 	.release	=	skcipher_release,
 	.setkey		=	skcipher_setkey,
 	.accept		=	skcipher_accept_parent,
+	.accept_nokey	=	skcipher_accept_parent_nokey,
 	.ops		=	&algif_skcipher_ops,
+	.ops_nokey	=	&algif_skcipher_ops_nokey,
 	.name		=	"skcipher",
 	.owner		=	THIS_MODULE
 };
diff --git a/crypto/blkcipher.c b/crypto/blkcipher.c
index 11b981492031..8cc1622b2ee0 100644
--- a/crypto/blkcipher.c
+++ b/crypto/blkcipher.c
@@ -326,12 +326,12 @@ static int blkcipher_walk_first(struct blkcipher_desc *desc,
 	if (WARN_ON_ONCE(in_irq()))
 		return -EDEADLK;
 
+	walk->iv = desc->info;
 	walk->nbytes = walk->total;
 	if (unlikely(!walk->total))
 		return 0;
 
 	walk->buffer = NULL;
-	walk->iv = desc->info;
 	if (unlikely(((unsigned long)walk->iv & walk->alignmask))) {
 		int err = blkcipher_copy_iv(walk);
 		if (err)
diff --git a/crypto/crc32c_generic.c b/crypto/crc32c_generic.c
index 06f1b60f02b2..4c0a0e271876 100644
--- a/crypto/crc32c_generic.c
+++ b/crypto/crc32c_generic.c
@@ -172,4 +172,3 @@ MODULE_DESCRIPTION("CRC32c (Castagnoli) calculations wrapper for lib/crc32c");
 MODULE_LICENSE("GPL");
 MODULE_ALIAS_CRYPTO("crc32c");
 MODULE_ALIAS_CRYPTO("crc32c-generic");
-MODULE_SOFTDEP("pre: crc32c");
diff --git a/crypto/crypto_user.c b/crypto/crypto_user.c
index 237f3795cfaa..43fe85f20d57 100644
--- a/crypto/crypto_user.c
+++ b/crypto/crypto_user.c
@@ -499,6 +499,7 @@ static int crypto_user_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
 		if (link->dump == NULL)
 			return -EINVAL;
 
+		down_read(&crypto_alg_sem);
 		list_for_each_entry(alg, &crypto_alg_list, cra_list)
 			dump_alloc += CRYPTO_REPORT_MAXSIZE;
 
@@ -508,8 +509,11 @@ static int crypto_user_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
 				.done = link->done,
 				.min_dump_alloc = dump_alloc,
 			};
-			return netlink_dump_start(crypto_nlsk, skb, nlh, &c);
+			err = netlink_dump_start(crypto_nlsk, skb, nlh, &c);
 		}
+		up_read(&crypto_alg_sem);
+
+		return err;
 	}
 
 	err = nlmsg_parse(nlh, crypto_msg_min[type], attrs, CRYPTOCFGA_MAX,
diff --git a/crypto/shash.c b/crypto/shash.c
index ecb1e3d39bf0..359754591653 100644
--- a/crypto/shash.c
+++ b/crypto/shash.c
@@ -354,9 +354,10 @@ int crypto_init_shash_ops_async(struct crypto_tfm *tfm)
 	crt->final = shash_async_final;
 	crt->finup = shash_async_finup;
 	crt->digest = shash_async_digest;
+	crt->setkey = shash_async_setkey;
+
+	crt->has_setkey = alg->setkey != shash_no_setkey;
 
-	if (alg->setkey)
-		crt->setkey = shash_async_setkey;
 	if (alg->export)
 		crt->export = shash_async_export;
 	if (alg->import)
diff --git a/crypto/skcipher.c b/crypto/skcipher.c
index dd5fc1bf6447..bb7d44d2c843 100644
--- a/crypto/skcipher.c
+++ b/crypto/skcipher.c
@@ -118,6 +118,7 @@ int crypto_init_skcipher_ops_blkcipher(struct crypto_tfm *tfm)
 	skcipher->decrypt = skcipher_decrypt_blkcipher;
 
 	skcipher->ivsize = crypto_blkcipher_ivsize(blkcipher);
+	skcipher->has_setkey = calg->cra_blkcipher.max_keysize;
 
 	return 0;
 }
@@ -210,6 +211,7 @@ int crypto_init_skcipher_ops_ablkcipher(struct crypto_tfm *tfm)
 	skcipher->ivsize = crypto_ablkcipher_ivsize(ablkcipher);
 	skcipher->reqsize = crypto_ablkcipher_reqsize(ablkcipher) +
 			    sizeof(struct ablkcipher_request);
+	skcipher->has_setkey = calg->cra_ablkcipher.max_keysize;
 
 	return 0;
 }
diff --git a/crypto/testmgr.h b/crypto/testmgr.h
index 64b8a8082645..450f30e2c8e4 100644
--- a/crypto/testmgr.h
+++ b/crypto/testmgr.h
@@ -270,7 +270,7 @@ static struct akcipher_testvec rsa_tv_template[] = {
 	.c_size = 256,
 	}, {
 	.key =
-	"\x30\x82\x01\x09" /* sequence of 265 bytes */
+	"\x30\x82\x01\x0C" /* sequence of 268 bytes */
 	"\x02\x82\x01\x00" /* modulus - integer of 256 bytes */
 	"\xDB\x10\x1A\xC2\xA3\xF1\xDC\xFF\x13\x6B\xED\x44\xDF\xF0\x02\x6D"
 	"\x13\xC7\x88\xDA\x70\x6B\x54\xF1\xE8\x27\xDC\xC3\x0F\x99\x6A\xFA"
@@ -288,8 +288,9 @@ static struct akcipher_testvec rsa_tv_template[] = {
 	"\x55\xE6\x29\x69\xD1\xC2\xE8\xB9\x78\x59\xF6\x79\x10\xC6\x4E\xEB"
 	"\x6A\x5E\xB9\x9A\xC7\xC4\x5B\x63\xDA\xA3\x3F\x5E\x92\x7A\x81\x5E"
 	"\xD6\xB0\xE2\x62\x8F\x74\x26\xC2\x0C\xD3\x9A\x17\x47\xE6\x8E\xAB"
-	"\x02\x03\x01\x00\x01", /* public key - integer of 3 bytes */
-	.key_len = 269,
+	"\x02\x03\x01\x00\x01" /* public key - integer of 3 bytes */
+	"\x02\x01\x00", /* private key - integer of 1 byte */
+	.key_len = 272,
 	.m = "\x54\x85\x9b\x34\x2c\x49\xea\x2a",
 	.c =
 	"\xb2\x97\x76\xb4\xae\x3e\x38\x3c\x7e\x64\x1f\xcc\xa2\x7f\xf6\xbe"
diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index a46660204e3a..bbd472cadc98 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -264,6 +264,26 @@ static const struct pci_device_id ahci_pci_tbl[] = {
 	{ PCI_VDEVICE(INTEL, 0x3b2b), board_ahci }, /* PCH RAID */
 	{ PCI_VDEVICE(INTEL, 0x3b2c), board_ahci }, /* PCH RAID */
 	{ PCI_VDEVICE(INTEL, 0x3b2f), board_ahci }, /* PCH AHCI */
+	{ PCI_VDEVICE(INTEL, 0x19b0), board_ahci }, /* DNV AHCI */
+	{ PCI_VDEVICE(INTEL, 0x19b1), board_ahci }, /* DNV AHCI */
+	{ PCI_VDEVICE(INTEL, 0x19b2), board_ahci }, /* DNV AHCI */
+	{ PCI_VDEVICE(INTEL, 0x19b3), board_ahci }, /* DNV AHCI */
+	{ PCI_VDEVICE(INTEL, 0x19b4), board_ahci }, /* DNV AHCI */
+	{ PCI_VDEVICE(INTEL, 0x19b5), board_ahci }, /* DNV AHCI */
+	{ PCI_VDEVICE(INTEL, 0x19b6), board_ahci }, /* DNV AHCI */
+	{ PCI_VDEVICE(INTEL, 0x19b7), board_ahci }, /* DNV AHCI */
+	{ PCI_VDEVICE(INTEL, 0x19bE), board_ahci }, /* DNV AHCI */
+	{ PCI_VDEVICE(INTEL, 0x19bF), board_ahci }, /* DNV AHCI */
+	{ PCI_VDEVICE(INTEL, 0x19c0), board_ahci }, /* DNV AHCI */
+	{ PCI_VDEVICE(INTEL, 0x19c1), board_ahci }, /* DNV AHCI */
+	{ PCI_VDEVICE(INTEL, 0x19c2), board_ahci }, /* DNV AHCI */
+	{ PCI_VDEVICE(INTEL, 0x19c3), board_ahci }, /* DNV AHCI */
+	{ PCI_VDEVICE(INTEL, 0x19c4), board_ahci }, /* DNV AHCI */
+	{ PCI_VDEVICE(INTEL, 0x19c5), board_ahci }, /* DNV AHCI */
+	{ PCI_VDEVICE(INTEL, 0x19c6), board_ahci }, /* DNV AHCI */
+	{ PCI_VDEVICE(INTEL, 0x19c7), board_ahci }, /* DNV AHCI */
+	{ PCI_VDEVICE(INTEL, 0x19cE), board_ahci }, /* DNV AHCI */
+	{ PCI_VDEVICE(INTEL, 0x19cF), board_ahci }, /* DNV AHCI */
 	{ PCI_VDEVICE(INTEL, 0x1c02), board_ahci }, /* CPT AHCI */
 	{ PCI_VDEVICE(INTEL, 0x1c03), board_ahci }, /* CPT AHCI */
 	{ PCI_VDEVICE(INTEL, 0x1c04), board_ahci }, /* CPT RAID */
diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c
index d256a66158be..317f85dfd39a 100644
--- a/drivers/ata/libahci.c
+++ b/drivers/ata/libahci.c
@@ -495,8 +495,8 @@ void ahci_save_initial_config(struct device *dev, struct ahci_host_priv *hpriv)
 		}
 	}
 
-	/* fabricate port_map from cap.nr_ports */
-	if (!port_map) {
+	/* fabricate port_map from cap.nr_ports for < AHCI 1.3 */
+	if (!port_map && vers < 0x10300) {
 		port_map = (1 << ahci_nr_ports(cap)) - 1;
 		dev_warn(dev, "forcing PORTS_IMPL to 0x%x\n", port_map);
 
@@ -1266,6 +1266,15 @@ static int ahci_exec_polled_cmd(struct ata_port *ap, int pmp,
 	ata_tf_to_fis(tf, pmp, is_cmd, fis);
 	ahci_fill_cmd_slot(pp, 0, cmd_fis_len | flags | (pmp << 12));
 
+	/* set port value for softreset of Port Multiplier */
+	if (pp->fbs_enabled && pp->fbs_last_dev != pmp) {
+		tmp = readl(port_mmio + PORT_FBS);
+		tmp &= ~(PORT_FBS_DEV_MASK | PORT_FBS_DEC);
+		tmp |= pmp << PORT_FBS_DEV_OFFSET;
+		writel(tmp, port_mmio + PORT_FBS);
+		pp->fbs_last_dev = pmp;
+	}
+
 	/* issue & wait */
 	writel(1, port_mmio + PORT_CMD_ISSUE);
 
diff --git a/drivers/base/memory.c b/drivers/base/memory.c
index 2804aed3f416..25425d3f2575 100644
--- a/drivers/base/memory.c
+++ b/drivers/base/memory.c
@@ -303,6 +303,10 @@ static int memory_subsys_offline(struct device *dev)
 	if (mem->state == MEM_OFFLINE)
 		return 0;
 
+	/* Can't offline block with non-present sections */
+	if (mem->section_count != sections_per_block)
+		return -EINVAL;
+
 	return memory_block_change_state(mem, MEM_OFFLINE, MEM_ONLINE);
 }
 
diff --git a/drivers/block/zram/zcomp.c b/drivers/block/zram/zcomp.c
index 5cb13ca3a3ac..c53617752b93 100644
--- a/drivers/block/zram/zcomp.c
+++ b/drivers/block/zram/zcomp.c
@@ -76,7 +76,7 @@ static void zcomp_strm_free(struct zcomp *comp, struct zcomp_strm *zstrm)
  */
 static struct zcomp_strm *zcomp_strm_alloc(struct zcomp *comp)
 {
-	struct zcomp_strm *zstrm = kmalloc(sizeof(*zstrm), GFP_KERNEL);
+	struct zcomp_strm *zstrm = kmalloc(sizeof(*zstrm), GFP_NOIO);
 	if (!zstrm)
 		return NULL;
 
@@ -85,7 +85,7 @@ static struct zcomp_strm *zcomp_strm_alloc(struct zcomp *comp)
 	 * allocate 2 pages. 1 for compressed data, plus 1 extra for the
 	 * case when compressed size is larger than the original one
 	 */
-	zstrm->buffer = (void *)__get_free_pages(GFP_KERNEL | __GFP_ZERO, 1);
+	zstrm->buffer = (void *)__get_free_pages(GFP_NOIO | __GFP_ZERO, 1);
 	if (!zstrm->private || !zstrm->buffer) {
 		zcomp_strm_free(comp, zstrm);
 		zstrm = NULL;
diff --git a/drivers/block/zram/zcomp_lz4.c b/drivers/block/zram/zcomp_lz4.c
index f2afb7e988c3..dd6083124276 100644
--- a/drivers/block/zram/zcomp_lz4.c
+++ b/drivers/block/zram/zcomp_lz4.c
@@ -10,17 +10,36 @@
 #include <linux/kernel.h>
 #include <linux/slab.h>
 #include <linux/lz4.h>
+#include <linux/vmalloc.h>
+#include <linux/mm.h>
 
 #include "zcomp_lz4.h"
 
 static void *zcomp_lz4_create(void)
 {
-	return kzalloc(LZ4_MEM_COMPRESS, GFP_KERNEL);
+	void *ret;
+
+	/*
+	 * This function can be called in swapout/fs write path
+	 * so we can't use GFP_FS|IO. And it assumes we already
+	 * have at least one stream in zram initialization so we
+	 * don't do best effort to allocate more stream in here.
+	 * A default stream will work well without further multiple
+	 * streams. That's why we use NORETRY | NOWARN.
+	 */
+	ret = kzalloc(LZ4_MEM_COMPRESS, GFP_NOIO | __GFP_NORETRY |
+					__GFP_NOWARN);
+	if (!ret)
+		ret = __vmalloc(LZ4_MEM_COMPRESS,
+				GFP_NOIO | __GFP_NORETRY | __GFP_NOWARN |
+				__GFP_ZERO | __GFP_HIGHMEM,
+				PAGE_KERNEL);
+	return ret;
 }
 
 static void zcomp_lz4_destroy(void *private)
 {
-	kfree(private);
+	kvfree(private);
 }
 
 static int zcomp_lz4_compress(const unsigned char *src, unsigned char *dst,
diff --git a/drivers/block/zram/zcomp_lzo.c b/drivers/block/zram/zcomp_lzo.c
index da1bc47d588e..edc549920fa0 100644
--- a/drivers/block/zram/zcomp_lzo.c
+++ b/drivers/block/zram/zcomp_lzo.c
@@ -10,17 +10,36 @@
 #include <linux/kernel.h>
 #include <linux/slab.h>
 #include <linux/lzo.h>
+#include <linux/vmalloc.h>
+#include <linux/mm.h>
 
 #include "zcomp_lzo.h"
 
 static void *lzo_create(void)
 {
-	return kzalloc(LZO1X_MEM_COMPRESS, GFP_KERNEL);
+	void *ret;
+
+	/*
+	 * This function can be called in swapout/fs write path
+	 * so we can't use GFP_FS|IO. And it assumes we already
+	 * have at least one stream in zram initialization so we
+	 * don't do best effort to allocate more stream in here.
+	 * A default stream will work well without further multiple
+	 * streams. That's why we use NORETRY | NOWARN.
+	 */
+	ret = kzalloc(LZO1X_MEM_COMPRESS, GFP_NOIO | __GFP_NORETRY |
+					__GFP_NOWARN);
+	if (!ret)
+		ret = __vmalloc(LZO1X_MEM_COMPRESS,
+				GFP_NOIO | __GFP_NORETRY | __GFP_NOWARN |
+				__GFP_ZERO | __GFP_HIGHMEM,
+				PAGE_KERNEL);
+	return ret;
 }
 
 static void lzo_destroy(void *private)
 {
-	kfree(private);
+	kvfree(private);
 }
 
 static int lzo_compress(const unsigned char *src, unsigned char *dst,
diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c
index 9fa15bb9d118..8022c0a96b36 100644
--- a/drivers/block/zram/zram_drv.c
+++ b/drivers/block/zram/zram_drv.c
@@ -1324,7 +1324,6 @@ static int zram_remove(struct zram *zram)
 
 	pr_info("Removed device: %s\n", zram->disk->disk_name);
 
-	idr_remove(&zram_index_idr, zram->disk->first_minor);
 	blk_cleanup_queue(zram->disk->queue);
 	del_gendisk(zram->disk);
 	put_disk(zram->disk);
@@ -1366,10 +1365,12 @@ static ssize_t hot_remove_store(struct class *class,
 	mutex_lock(&zram_index_mutex);
 
 	zram = idr_find(&zram_index_idr, dev_id);
-	if (zram)
+	if (zram) {
 		ret = zram_remove(zram);
-	else
+		idr_remove(&zram_index_idr, dev_id);
+	} else {
 		ret = -ENODEV;
+	}
 
 	mutex_unlock(&zram_index_mutex);
 	return ret ? ret : count;
diff --git a/drivers/char/tpm/tpm-chip.c b/drivers/char/tpm/tpm-chip.c
index 1082d4bb016a..0f8623d88b84 100644
--- a/drivers/char/tpm/tpm-chip.c
+++ b/drivers/char/tpm/tpm-chip.c
@@ -231,7 +231,7 @@ int tpm_chip_register(struct tpm_chip *chip)
 
 	/* Make the chip available. */
 	spin_lock(&driver_lock);
-	list_add_rcu(&chip->list, &tpm_chip_list);
+	list_add_tail_rcu(&chip->list, &tpm_chip_list);
 	spin_unlock(&driver_lock);
 
 	chip->flags |= TPM_CHIP_FLAG_REGISTERED;
diff --git a/drivers/char/tpm/tpm_crb.c b/drivers/char/tpm/tpm_crb.c
index 2b971b3e5c1c..4bb9727c1047 100644
--- a/drivers/char/tpm/tpm_crb.c
+++ b/drivers/char/tpm/tpm_crb.c
@@ -68,7 +68,8 @@ struct crb_control_area {
 	u32 int_enable;
 	u32 int_sts;
 	u32 cmd_size;
-	u64 cmd_pa;
+	u32 cmd_pa_low;
+	u32 cmd_pa_high;
 	u32 rsp_size;
 	u64 rsp_pa;
 } __packed;
@@ -263,8 +264,8 @@ static int crb_acpi_add(struct acpi_device *device)
 		return -ENOMEM;
 	}
 
-	memcpy_fromio(&pa, &priv->cca->cmd_pa, 8);
-	pa = le64_to_cpu(pa);
+	pa = ((u64) le32_to_cpu(ioread32(&priv->cca->cmd_pa_high)) << 32) |
+		(u64) le32_to_cpu(ioread32(&priv->cca->cmd_pa_low));
 	priv->cmd = devm_ioremap_nocache(dev, pa,
 					 ioread32(&priv->cca->cmd_size));
 	if (!priv->cmd) {
diff --git a/drivers/char/tpm/tpm_ibmvtpm.c b/drivers/char/tpm/tpm_ibmvtpm.c
index 27ebf9511cb4..3e6a22658b63 100644
--- a/drivers/char/tpm/tpm_ibmvtpm.c
+++ b/drivers/char/tpm/tpm_ibmvtpm.c
@@ -491,7 +491,7 @@ static void ibmvtpm_crq_process(struct ibmvtpm_crq *crq,
 			}
 			ibmvtpm->rtce_size = be16_to_cpu(crq->len);
 			ibmvtpm->rtce_buf = kmalloc(ibmvtpm->rtce_size,
-						    GFP_KERNEL);
+						    GFP_ATOMIC);
 			if (!ibmvtpm->rtce_buf) {
 				dev_err(ibmvtpm->dev, "Failed to allocate memory for rtce buffer\n");
 				return;
diff --git a/drivers/char/tpm/tpm_tis.c b/drivers/char/tpm/tpm_tis.c
index 696ef1d56b4f..19f9c7dc7bc0 100644
--- a/drivers/char/tpm/tpm_tis.c
+++ b/drivers/char/tpm/tpm_tis.c
@@ -805,6 +805,8 @@ static int tpm_tis_init(struct device *dev, struct tpm_info *tpm_info,
 			iowrite32(intmask,
 				  chip->vendor.iobase +
 				  TPM_INT_ENABLE(chip->vendor.locality));
+
+			devm_free_irq(dev, i, chip);
 		}
 	}
 	if (chip->vendor.irq) {
diff --git a/drivers/crypto/caam/caamhash.c b/drivers/crypto/caam/caamhash.c
index 94433b9fc200..3b70354b0d4b 100644
--- a/drivers/crypto/caam/caamhash.c
+++ b/drivers/crypto/caam/caamhash.c
@@ -829,7 +829,7 @@ static int ahash_update_ctx(struct ahash_request *req)
 		state->buf_dma = try_buf_map_to_sec4_sg(jrdev,
 							edesc->sec4_sg + 1,
 							buf, state->buf_dma,
-							*next_buflen, *buflen);
+							*buflen, last_buflen);
 
 		if (src_nents) {
 			src_map_to_sec4_sg(jrdev, req->src, src_nents,
diff --git a/drivers/crypto/caam/ctrl.c b/drivers/crypto/caam/ctrl.c
index 8abb4bc548cc..69d4a1326fee 100644
--- a/drivers/crypto/caam/ctrl.c
+++ b/drivers/crypto/caam/ctrl.c
@@ -534,8 +534,8 @@ static int caam_probe(struct platform_device *pdev)
 	 * long pointers in master configuration register
 	 */
 	clrsetbits_32(&ctrl->mcr, MCFGR_AWCACHE_MASK, MCFGR_AWCACHE_CACH |
-		      MCFGR_WDENABLE | (sizeof(dma_addr_t) == sizeof(u64) ?
-					MCFGR_LONG_PTR : 0));
+		      MCFGR_AWCACHE_BUFF | MCFGR_WDENABLE |
+		      (sizeof(dma_addr_t) == sizeof(u64) ? MCFGR_LONG_PTR : 0));
 
 	/*
 	 *  Read the Compile Time paramters and SCFGR to determine
diff --git a/drivers/crypto/marvell/cesa.c b/drivers/crypto/marvell/cesa.c
index 0643e3366e33..c0656e7f37b5 100644
--- a/drivers/crypto/marvell/cesa.c
+++ b/drivers/crypto/marvell/cesa.c
@@ -306,7 +306,7 @@ static int mv_cesa_dev_dma_init(struct mv_cesa_dev *cesa)
 		return -ENOMEM;
 
 	dma->padding_pool = dmam_pool_create("cesa_padding", dev, 72, 1, 0);
-	if (!dma->cache_pool)
+	if (!dma->padding_pool)
 		return -ENOMEM;
 
 	cesa->dma = dma;
diff --git a/drivers/crypto/nx/nx-aes-ccm.c b/drivers/crypto/nx/nx-aes-ccm.c
index 73ef49922788..7038f364acb5 100644
--- a/drivers/crypto/nx/nx-aes-ccm.c
+++ b/drivers/crypto/nx/nx-aes-ccm.c
@@ -409,7 +409,7 @@ static int ccm_nx_decrypt(struct aead_request   *req,
 		processed += to_process;
 	} while (processed < nbytes);
 
-	rc = memcmp(csbcpb->cpb.aes_ccm.out_pat_or_mac, priv->oauth_tag,
+	rc = crypto_memneq(csbcpb->cpb.aes_ccm.out_pat_or_mac, priv->oauth_tag,
 		    authsize) ? -EBADMSG : 0;
 out:
 	spin_unlock_irqrestore(&nx_ctx->lock, irq_flags);
diff --git a/drivers/crypto/nx/nx-aes-gcm.c b/drivers/crypto/nx/nx-aes-gcm.c
index eee624f589b6..abd465f479c4 100644
--- a/drivers/crypto/nx/nx-aes-gcm.c
+++ b/drivers/crypto/nx/nx-aes-gcm.c
@@ -21,6 +21,7 @@
 
 #include <crypto/internal/aead.h>
 #include <crypto/aes.h>
+#include <crypto/algapi.h>
 #include <crypto/scatterwalk.h>
 #include <linux/module.h>
 #include <linux/types.h>
@@ -418,7 +419,7 @@ mac:
 			itag, req->src, req->assoclen + nbytes,
 			crypto_aead_authsize(crypto_aead_reqtfm(req)),
 			SCATTERWALK_FROM_SG);
-		rc = memcmp(itag, otag,
+		rc = crypto_memneq(itag, otag,
 			    crypto_aead_authsize(crypto_aead_reqtfm(req))) ?
 		     -EBADMSG : 0;
 	}
diff --git a/drivers/crypto/qat/qat_common/adf_ctl_drv.c b/drivers/crypto/qat/qat_common/adf_ctl_drv.c
index cd8a12af8ec5..35bada05608a 100644
--- a/drivers/crypto/qat/qat_common/adf_ctl_drv.c
+++ b/drivers/crypto/qat/qat_common/adf_ctl_drv.c
@@ -198,7 +198,7 @@ static int adf_copy_key_value_data(struct adf_accel_dev *accel_dev,
 			goto out_err;
 		}
 
-		params_head = section_head->params;
+		params_head = section.params;
 
 		while (params_head) {
 			if (copy_from_user(&key_val, (void __user *)params_head,
diff --git a/drivers/crypto/sunxi-ss/sun4i-ss-core.c b/drivers/crypto/sunxi-ss/sun4i-ss-core.c
index eab6fe227fa0..107cd2a41cae 100644
--- a/drivers/crypto/sunxi-ss/sun4i-ss-core.c
+++ b/drivers/crypto/sunxi-ss/sun4i-ss-core.c
@@ -39,6 +39,7 @@ static struct sun4i_ss_alg_template ss_algs[] = {
 		.import = sun4i_hash_import_md5,
 		.halg = {
 			.digestsize = MD5_DIGEST_SIZE,
+			.statesize = sizeof(struct md5_state),
 			.base = {
 				.cra_name = "md5",
 				.cra_driver_name = "md5-sun4i-ss",
@@ -66,6 +67,7 @@ static struct sun4i_ss_alg_template ss_algs[] = {
 		.import = sun4i_hash_import_sha1,
 		.halg = {
 			.digestsize = SHA1_DIGEST_SIZE,
+			.statesize = sizeof(struct sha1_state),
 			.base = {
 				.cra_name = "sha1",
 				.cra_driver_name = "sha1-sun4i-ss",
diff --git a/drivers/crypto/talitos.c b/drivers/crypto/talitos.c
index 3b20a1bce703..8b327d89a8fc 100644
--- a/drivers/crypto/talitos.c
+++ b/drivers/crypto/talitos.c
@@ -1015,7 +1015,7 @@ static void ipsec_esp_decrypt_swauth_done(struct device *dev,
 		} else
 			oicv = (char *)&edesc->link_tbl[0];
 
-		err = memcmp(oicv, icv, authsize) ? -EBADMSG : 0;
+		err = crypto_memneq(oicv, icv, authsize) ? -EBADMSG : 0;
 	}
 
 	kfree(edesc);
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/base.c b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/base.c
index 27a79c0c3888..d95eb8659d1b 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/base.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/base.c
@@ -28,7 +28,7 @@
 void
 nvkm_pmu_pgob(struct nvkm_pmu *pmu, bool enable)
 {
-	if (pmu->func->pgob)
+	if (pmu && pmu->func->pgob)
 		pmu->func->pgob(pmu, enable);
 }
 
diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
index 426b2f1a3450..4afe8d78b366 100644
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -309,6 +309,41 @@ static struct attribute_group mt_attribute_group = {
 	.attrs = sysfs_attrs
 };
 
+static void mt_get_feature(struct hid_device *hdev, struct hid_report *report)
+{
+	struct mt_device *td = hid_get_drvdata(hdev);
+	int ret, size = hid_report_len(report);
+	u8 *buf;
+
+	/*
+	 * Only fetch the feature report if initial reports are not already
+	 * been retrieved. Currently this is only done for Windows 8 touch
+	 * devices.
+	 */
+	if (!(hdev->quirks & HID_QUIRK_NO_INIT_REPORTS))
+		return;
+	if (td->mtclass.name != MT_CLS_WIN_8)
+		return;
+
+	buf = hid_alloc_report_buf(report, GFP_KERNEL);
+	if (!buf)
+		return;
+
+	ret = hid_hw_raw_request(hdev, report->id, buf, size,
+				 HID_FEATURE_REPORT, HID_REQ_GET_REPORT);
+	if (ret < 0) {
+		dev_warn(&hdev->dev, "failed to fetch feature %d\n",
+			 report->id);
+	} else {
+		ret = hid_report_raw_event(hdev, HID_FEATURE_REPORT, buf,
+					   size, 0);
+		if (ret)
+			dev_warn(&hdev->dev, "failed to report feature\n");
+	}
+
+	kfree(buf);
+}
+
 static void mt_feature_mapping(struct hid_device *hdev,
 		struct hid_field *field, struct hid_usage *usage)
 {
@@ -327,6 +362,8 @@ static void mt_feature_mapping(struct hid_device *hdev,
 
 		break;
 	case HID_DG_CONTACTMAX:
+		mt_get_feature(hdev, field->report);
+
 		td->maxcontact_report_id = field->report->id;
 		td->maxcontacts = field->value[0];
 		if (!td->maxcontacts &&
@@ -343,6 +380,7 @@ static void mt_feature_mapping(struct hid_device *hdev,
 			break;
 		}
 
+		mt_get_feature(hdev, field->report);
 		if (field->value[usage->usage_index] == MT_BUTTONTYPE_CLICKPAD)
 			td->is_buttonpad = true;
 
@@ -1026,8 +1064,13 @@ static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id)
 		 * reports. Fortunately, the Win8 spec says that all touches
 		 * should be sent during each report, making the initialization
 		 * of input reports unnecessary.
+		 *
+		 * In addition some touchpads do not behave well if we read
+		 * all feature reports from them. Instead we prevent
+		 * initial report fetching and then selectively fetch each
+		 * report we are interested in.
 		 */
-		hdev->quirks |= HID_QUIRK_NO_INIT_INPUT_REPORTS;
+		hdev->quirks |= HID_QUIRK_NO_INIT_REPORTS;
 
 	td = devm_kzalloc(&hdev->dev, sizeof(struct mt_device), GFP_KERNEL);
 	if (!td) {
diff --git a/drivers/hid/usbhid/hid-core.c b/drivers/hid/usbhid/hid-core.c
index 36712e9f56c2..5dd426fee8cc 100644
--- a/drivers/hid/usbhid/hid-core.c
+++ b/drivers/hid/usbhid/hid-core.c
@@ -477,8 +477,6 @@ static void hid_ctrl(struct urb *urb)
 	struct usbhid_device *usbhid = hid->driver_data;
 	int unplug = 0, status = urb->status;
 
-	spin_lock(&usbhid->lock);
-
 	switch (status) {
 	case 0:			/* success */
 		if (usbhid->ctrl[usbhid->ctrltail].dir == USB_DIR_IN)
@@ -498,6 +496,8 @@ static void hid_ctrl(struct urb *urb)
 		hid_warn(urb->dev, "ctrl urb status %d received\n", status);
 	}
 
+	spin_lock(&usbhid->lock);
+
 	if (unplug) {
 		usbhid->ctrltail = usbhid->ctrlhead;
 	} else {
diff --git a/drivers/i2c/busses/i2c-at91.c b/drivers/i2c/busses/i2c-at91.c
index 1c758cd1e1ba..10835d1f559b 100644
--- a/drivers/i2c/busses/i2c-at91.c
+++ b/drivers/i2c/busses/i2c-at91.c
@@ -347,8 +347,14 @@ error:
 
 static void at91_twi_read_next_byte(struct at91_twi_dev *dev)
 {
-	if (!dev->buf_len)
+	/*
+	 * If we are in this case, it means there is garbage data in RHR, so
+	 * delete them.
+	 */
+	if (!dev->buf_len) {
+		at91_twi_read(dev, AT91_TWI_RHR);
 		return;
+	}
 
 	/* 8bit read works with and without FIFO */
 	*dev->buf = readb_relaxed(dev->base + AT91_TWI_RHR);
@@ -465,19 +471,73 @@ static irqreturn_t atmel_twi_interrupt(int irq, void *dev_id)
 
 	if (!irqstatus)
 		return IRQ_NONE;
-	else if (irqstatus & AT91_TWI_RXRDY)
+	/*
+	 * In reception, the behavior of the twi device (before sama5d2) is
+	 * weird. There is some magic about RXRDY flag! When a data has been
+	 * almost received, the reception of a new one is anticipated if there
+	 * is no stop command to send. That is the reason why ask for sending
+	 * the stop command not on the last data but on the second last one.
+	 *
+	 * Unfortunately, we could still have the RXRDY flag set even if the
+	 * transfer is done and we have read the last data. It might happen
+	 * when the i2c slave device sends too quickly data after receiving the
+	 * ack from the master. The data has been almost received before having
+	 * the order to send stop. In this case, sending the stop command could
+	 * cause a RXRDY interrupt with a TXCOMP one. It is better to manage
+	 * the RXRDY interrupt first in order to not keep garbage data in the
+	 * Receive Holding Register for the next transfer.
+	 */
+	if (irqstatus & AT91_TWI_RXRDY)
 		at91_twi_read_next_byte(dev);
-	else if (irqstatus & AT91_TWI_TXRDY)
-		at91_twi_write_next_byte(dev);
-
-	/* catch error flags */
-	dev->transfer_status |= status;
 
+	/*
+	 * When a NACK condition is detected, the I2C controller sets the NACK,
+	 * TXCOMP and TXRDY bits all together in the Status Register (SR).
+	 *
+	 * 1 - Handling NACK errors with CPU write transfer.
+	 *
+	 * In such case, we should not write the next byte into the Transmit
+	 * Holding Register (THR) otherwise the I2C controller would start a new
+	 * transfer and the I2C slave is likely to reply by another NACK.
+	 *
+	 * 2 - Handling NACK errors with DMA write transfer.
+	 *
+	 * By setting the TXRDY bit in the SR, the I2C controller also triggers
+	 * the DMA controller to write the next data into the THR. Then the
+	 * result depends on the hardware version of the I2C controller.
+	 *
+	 * 2a - Without support of the Alternative Command mode.
+	 *
+	 * This is the worst case: the DMA controller is triggered to write the
+	 * next data into the THR, hence starting a new transfer: the I2C slave
+	 * is likely to reply by another NACK.
+	 * Concurrently, this interrupt handler is likely to be called to manage
+	 * the first NACK before the I2C controller detects the second NACK and
+	 * sets once again the NACK bit into the SR.
+	 * When handling the first NACK, this interrupt handler disables the I2C
+	 * controller interruptions, especially the NACK interrupt.
+	 * Hence, the NACK bit is pending into the SR. This is why we should
+	 * read the SR to clear all pending interrupts at the beginning of
+	 * at91_do_twi_transfer() before actually starting a new transfer.
+	 *
+	 * 2b - With support of the Alternative Command mode.
+	 *
+	 * When a NACK condition is detected, the I2C controller also locks the
+	 * THR (and sets the LOCK bit in the SR): even though the DMA controller
+	 * is triggered by the TXRDY bit to write the next data into the THR,
+	 * this data actually won't go on the I2C bus hence a second NACK is not
+	 * generated.
+	 */
 	if (irqstatus & (AT91_TWI_TXCOMP | AT91_TWI_NACK)) {
 		at91_disable_twi_interrupts(dev);
 		complete(&dev->cmd_complete);
+	} else if (irqstatus & AT91_TWI_TXRDY) {
+		at91_twi_write_next_byte(dev);
 	}
 
+	/* catch error flags */
+	dev->transfer_status |= status;
+
 	return IRQ_HANDLED;
 }
 
@@ -537,6 +597,9 @@ static int at91_do_twi_transfer(struct at91_twi_dev *dev)
 	reinit_completion(&dev->cmd_complete);
 	dev->transfer_status = 0;
 
+	/* Clear pending interrupts, such as NACK. */
+	at91_twi_read(dev, AT91_TWI_SR);
+
 	if (dev->fifo_size) {
 		unsigned fifo_mr = at91_twi_read(dev, AT91_TWI_FMR);
 
@@ -558,11 +621,6 @@ static int at91_do_twi_transfer(struct at91_twi_dev *dev)
 	} else if (dev->msg->flags & I2C_M_RD) {
 		unsigned start_flags = AT91_TWI_START;
 
-		if (at91_twi_read(dev, AT91_TWI_SR) & AT91_TWI_RXRDY) {
-			dev_err(dev->dev, "RXRDY still set!");
-			at91_twi_read(dev, AT91_TWI_RHR);
-		}
-
 		/* if only one byte is to be read, immediately stop transfer */
 		if (!has_alt_cmd && dev->buf_len <= 1 &&
 		    !(dev->msg->flags & I2C_M_RECV_LEN))
diff --git a/drivers/i2c/busses/i2c-mv64xxx.c b/drivers/i2c/busses/i2c-mv64xxx.c
index 5801227b97ab..43207f52e5a3 100644
--- a/drivers/i2c/busses/i2c-mv64xxx.c
+++ b/drivers/i2c/busses/i2c-mv64xxx.c
@@ -146,6 +146,8 @@ struct mv64xxx_i2c_data {
 	bool			errata_delay;
 	struct reset_control	*rstc;
 	bool			irq_clear_inverted;
+	/* Clk div is 2 to the power n, not 2 to the power n + 1 */
+	bool			clk_n_base_0;
 };
 
 static struct mv64xxx_i2c_regs mv64xxx_i2c_regs_mv64xxx = {
@@ -757,25 +759,29 @@ MODULE_DEVICE_TABLE(of, mv64xxx_i2c_of_match_table);
 #ifdef CONFIG_OF
 #ifdef CONFIG_HAVE_CLK
 static int
-mv64xxx_calc_freq(const int tclk, const int n, const int m)
+mv64xxx_calc_freq(struct mv64xxx_i2c_data *drv_data,
+		  const int tclk, const int n, const int m)
 {
-	return tclk / (10 * (m + 1) * (2 << n));
+	if (drv_data->clk_n_base_0)
+		return tclk / (10 * (m + 1) * (1 << n));
+	else
+		return tclk / (10 * (m + 1) * (2 << n));
 }
 
 static bool
-mv64xxx_find_baud_factors(const u32 req_freq, const u32 tclk, u32 *best_n,
-			  u32 *best_m)
+mv64xxx_find_baud_factors(struct mv64xxx_i2c_data *drv_data,
+			  const u32 req_freq, const u32 tclk)
 {
 	int freq, delta, best_delta = INT_MAX;
 	int m, n;
 
 	for (n = 0; n <= 7; n++)
 		for (m = 0; m <= 15; m++) {
-			freq = mv64xxx_calc_freq(tclk, n, m);
+			freq = mv64xxx_calc_freq(drv_data, tclk, n, m);
 			delta = req_freq - freq;
 			if (delta >= 0 && delta < best_delta) {
-				*best_m = m;
-				*best_n = n;
+				drv_data->freq_m = m;
+				drv_data->freq_n = n;
 				best_delta = delta;
 			}
 			if (best_delta == 0)
@@ -813,8 +819,11 @@ mv64xxx_of_config(struct mv64xxx_i2c_data *drv_data,
 	if (of_property_read_u32(np, "clock-frequency", &bus_freq))
 		bus_freq = 100000; /* 100kHz by default */
 
-	if (!mv64xxx_find_baud_factors(bus_freq, tclk,
-				       &drv_data->freq_n, &drv_data->freq_m)) {
+	if (of_device_is_compatible(np, "allwinner,sun4i-a10-i2c") ||
+	    of_device_is_compatible(np, "allwinner,sun6i-a31-i2c"))
+		drv_data->clk_n_base_0 = true;
+
+	if (!mv64xxx_find_baud_factors(drv_data, bus_freq, tclk)) {
 		rc = -EINVAL;
 		goto out;
 	}
diff --git a/drivers/i2c/busses/i2c-rcar.c b/drivers/i2c/busses/i2c-rcar.c
index d8b5a8fee1e6..3191dd9984dc 100644
--- a/drivers/i2c/busses/i2c-rcar.c
+++ b/drivers/i2c/busses/i2c-rcar.c
@@ -575,7 +575,7 @@ static int rcar_reg_slave(struct i2c_client *slave)
 	if (slave->flags & I2C_CLIENT_TEN)
 		return -EAFNOSUPPORT;
 
-	pm_runtime_forbid(rcar_i2c_priv_to_dev(priv));
+	pm_runtime_get_sync(rcar_i2c_priv_to_dev(priv));
 
 	priv->slave = slave;
 	rcar_i2c_write(priv, ICSAR, slave->addr);
@@ -597,7 +597,7 @@ static int rcar_unreg_slave(struct i2c_client *slave)
 
 	priv->slave = NULL;
 
-	pm_runtime_allow(rcar_i2c_priv_to_dev(priv));
+	pm_runtime_put(rcar_i2c_priv_to_dev(priv));
 
 	return 0;
 }
diff --git a/drivers/i2c/busses/i2c-rk3x.c b/drivers/i2c/busses/i2c-rk3x.c
index 72e97e306bd9..9c4efd308f10 100644
--- a/drivers/i2c/busses/i2c-rk3x.c
+++ b/drivers/i2c/busses/i2c-rk3x.c
@@ -907,7 +907,7 @@ static int rk3x_i2c_probe(struct platform_device *pdev)
 				 &i2c->scl_fall_ns))
 		i2c->scl_fall_ns = 300;
 	if (of_property_read_u32(pdev->dev.of_node, "i2c-sda-falling-time-ns",
-				 &i2c->scl_fall_ns))
+				 &i2c->sda_fall_ns))
 		i2c->sda_fall_ns = i2c->scl_fall_ns;
 
 	strlcpy(i2c->adap.name, "rk3x-i2c", sizeof(i2c->adap.name));
diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
index a59c3111f7fb..a4347ba78a51 100644
--- a/drivers/i2c/i2c-core.c
+++ b/drivers/i2c/i2c-core.c
@@ -679,7 +679,7 @@ static int i2c_device_probe(struct device *dev)
 		if (wakeirq > 0 && wakeirq != client->irq)
 			status = dev_pm_set_dedicated_wake_irq(dev, wakeirq);
 		else if (client->irq > 0)
-			status = dev_pm_set_wake_irq(dev, wakeirq);
+			status = dev_pm_set_wake_irq(dev, client->irq);
 		else
 			status = 0;
 
diff --git a/drivers/iommu/io-pgtable-arm.c b/drivers/iommu/io-pgtable-arm.c
index 7df97777662d..dad768caa9c5 100644
--- a/drivers/iommu/io-pgtable-arm.c
+++ b/drivers/iommu/io-pgtable-arm.c
@@ -405,17 +405,18 @@ static void __arm_lpae_free_pgtable(struct arm_lpae_io_pgtable *data, int lvl,
 	arm_lpae_iopte *start, *end;
 	unsigned long table_size;
 
-	/* Only leaf entries at the last level */
-	if (lvl == ARM_LPAE_MAX_LEVELS - 1)
-		return;
-
 	if (lvl == ARM_LPAE_START_LVL(data))
 		table_size = data->pgd_size;
 	else
 		table_size = 1UL << data->pg_shift;
 
 	start = ptep;
-	end = (void *)ptep + table_size;
+
+	/* Only leaf entries at the last level */
+	if (lvl == ARM_LPAE_MAX_LEVELS - 1)
+		end = ptep;
+	else
+		end = (void *)ptep + table_size;
 
 	while (ptep != end) {
 		arm_lpae_iopte pte = *ptep++;
diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c
index 5a67671a3973..bdc96cd838b8 100644
--- a/drivers/md/dm-mpath.c
+++ b/drivers/md/dm-mpath.c
@@ -1569,11 +1569,8 @@ static int multipath_ioctl(struct dm_target *ti, unsigned int cmd,
 	/*
 	 * Only pass ioctls through if the device sizes match exactly.
 	 */
-	if (!bdev || ti->len != i_size_read(bdev->bd_inode) >> SECTOR_SHIFT) {
-		int err = scsi_verify_blk_ioctl(NULL, cmd);
-		if (err)
-			r = err;
-	}
+	if (!r && ti->len != i_size_read(bdev->bd_inode) >> SECTOR_SHIFT)
+		r = scsi_verify_blk_ioctl(NULL, cmd);
 
 	if (r == -ENOTCONN && !fatal_signal_pending(current)) {
 		spin_lock_irqsave(&m->lock, flags);
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 1b5c6047e4f1..8af4750f20bf 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -2198,6 +2198,13 @@ static void dm_init_md_queue(struct mapped_device *md)
 	 * This queue is new, so no concurrency on the queue_flags.
 	 */
 	queue_flag_clear_unlocked(QUEUE_FLAG_STACKABLE, md->queue);
+
+	/*
+	 * Initialize data that will only be used by a non-blk-mq DM queue
+	 * - must do so here (in alloc_dev callchain) before queue is used
+	 */
+	md->queue->queuedata = md;
+	md->queue->backing_dev_info.congested_data = md;
 }
 
 static void dm_init_old_md_queue(struct mapped_device *md)
@@ -2208,10 +2215,7 @@ static void dm_init_old_md_queue(struct mapped_device *md)
 	/*
 	 * Initialize aspects of queue that aren't relevant for blk-mq
 	 */
-	md->queue->queuedata = md;
 	md->queue->backing_dev_info.congested_fn = dm_any_congested;
-	md->queue->backing_dev_info.congested_data = md;
-
 	blk_queue_bounce_limit(md->queue, BLK_BOUNCE_ANY);
 }
 
diff --git a/drivers/md/persistent-data/dm-btree.c b/drivers/md/persistent-data/dm-btree.c
index 0e09aef43998..88c287db3bde 100644
--- a/drivers/md/persistent-data/dm-btree.c
+++ b/drivers/md/persistent-data/dm-btree.c
@@ -471,8 +471,10 @@ static int btree_split_sibling(struct shadow_spine *s, unsigned parent_index,
 
 	r = insert_at(sizeof(__le64), pn, parent_index + 1,
 		      le64_to_cpu(rn->keys[0]), &location);
-	if (r)
+	if (r) {
+		unlock_block(s->info, right);
 		return r;
+	}
 
 	if (key < le64_to_cpu(rn->keys[0])) {
 		unlock_block(s->info, right);
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index 96f365968306..23bbe61f9ac0 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -1944,6 +1944,8 @@ static void sync_request_write(struct mddev *mddev, struct r10bio *r10_bio)
 
 	first = i;
 	fbio = r10_bio->devs[i].bio;
+	fbio->bi_iter.bi_size = r10_bio->sectors << 9;
+	fbio->bi_iter.bi_idx = 0;
 
 	vcnt = (r10_bio->sectors + (PAGE_SIZE >> 9) - 1) >> (PAGE_SHIFT - 9);
 	/* now find blocks with errors */
@@ -1987,7 +1989,7 @@ static void sync_request_write(struct mddev *mddev, struct r10bio *r10_bio)
 		bio_reset(tbio);
 
 		tbio->bi_vcnt = vcnt;
-		tbio->bi_iter.bi_size = r10_bio->sectors << 9;
+		tbio->bi_iter.bi_size = fbio->bi_iter.bi_size;
 		tbio->bi_rw = WRITE;
 		tbio->bi_private = r10_bio;
 		tbio->bi_iter.bi_sector = r10_bio->devs[i].addr;
diff --git a/drivers/media/i2c/ir-kbd-i2c.c b/drivers/media/i2c/ir-kbd-i2c.c
index 728d2cc8a3e7..175a76114953 100644
--- a/drivers/media/i2c/ir-kbd-i2c.c
+++ b/drivers/media/i2c/ir-kbd-i2c.c
@@ -478,7 +478,6 @@ static const struct i2c_device_id ir_kbd_id[] = {
 	{ "ir_rx_z8f0811_hdpvr", 0 },
 	{ }
 };
-MODULE_DEVICE_TABLE(i2c, ir_kbd_id);
 
 static struct i2c_driver ir_kbd_driver = {
 	.driver = {
diff --git a/drivers/media/pci/ivtv/ivtv-driver.c b/drivers/media/pci/ivtv/ivtv-driver.c
index 8616fa8193bc..c2e60b4f292d 100644
--- a/drivers/media/pci/ivtv/ivtv-driver.c
+++ b/drivers/media/pci/ivtv/ivtv-driver.c
@@ -805,11 +805,11 @@ static void ivtv_init_struct2(struct ivtv *itv)
 {
 	int i;
 
-	for (i = 0; i < IVTV_CARD_MAX_VIDEO_INPUTS - 1; i++)
+	for (i = 0; i < IVTV_CARD_MAX_VIDEO_INPUTS; i++)
 		if (itv->card->video_inputs[i].video_type == 0)
 			break;
 	itv->nof_inputs = i;
-	for (i = 0; i < IVTV_CARD_MAX_AUDIO_INPUTS - 1; i++)
+	for (i = 0; i < IVTV_CARD_MAX_AUDIO_INPUTS; i++)
 		if (itv->card->audio_inputs[i].audio_type == 0)
 			break;
 	itv->nof_audio_inputs = i;
diff --git a/drivers/media/pci/saa7134/saa7134-alsa.c b/drivers/media/pci/saa7134/saa7134-alsa.c
index 1d2c310ce838..94f816244407 100644
--- a/drivers/media/pci/saa7134/saa7134-alsa.c
+++ b/drivers/media/pci/saa7134/saa7134-alsa.c
@@ -1211,6 +1211,8 @@ static int alsa_device_init(struct saa7134_dev *dev)
 
 static int alsa_device_exit(struct saa7134_dev *dev)
 {
+	if (!snd_saa7134_cards[dev->nr])
+		return 1;
 
 	snd_card_free(snd_saa7134_cards[dev->nr]);
 	snd_saa7134_cards[dev->nr] = NULL;
@@ -1260,7 +1262,8 @@ static void saa7134_alsa_exit(void)
 	int idx;
 
 	for (idx = 0; idx < SNDRV_CARDS; idx++) {
-		snd_card_free(snd_saa7134_cards[idx]);
+		if (snd_saa7134_cards[idx])
+			snd_card_free(snd_saa7134_cards[idx]);
 	}
 
 	saa7134_dmasound_init = NULL;
diff --git a/drivers/media/platform/sti/c8sectpfe/Kconfig b/drivers/media/platform/sti/c8sectpfe/Kconfig
index 641ad8f34956..7420a50572d3 100644
--- a/drivers/media/platform/sti/c8sectpfe/Kconfig
+++ b/drivers/media/platform/sti/c8sectpfe/Kconfig
@@ -3,7 +3,6 @@ config DVB_C8SECTPFE
 	depends on PINCTRL && DVB_CORE && I2C
 	depends on ARCH_STI || ARCH_MULTIPLATFORM || COMPILE_TEST
 	select FW_LOADER
-	select FW_LOADER_USER_HELPER_FALLBACK
 	select DEBUG_FS
 	select DVB_LNBP21 if MEDIA_SUBDRV_AUTOSELECT
 	select DVB_STV090x if MEDIA_SUBDRV_AUTOSELECT
diff --git a/drivers/media/platform/vivid/vivid-core.c b/drivers/media/platform/vivid/vivid-core.c
index a047b4716741..0f5e9143cc7e 100644
--- a/drivers/media/platform/vivid/vivid-core.c
+++ b/drivers/media/platform/vivid/vivid-core.c
@@ -1341,8 +1341,11 @@ static int vivid_remove(struct platform_device *pdev)
 	struct vivid_dev *dev;
 	unsigned i;
 
-	for (i = 0; vivid_devs[i]; i++) {
+
+	for (i = 0; i < n_devs; i++) {
 		dev = vivid_devs[i];
+		if (!dev)
+			continue;
 
 		if (dev->has_vid_cap) {
 			v4l2_info(&dev->v4l2_dev, "unregistering %s\n",
diff --git a/drivers/media/v4l2-core/v4l2-compat-ioctl32.c b/drivers/media/v4l2-core/v4l2-compat-ioctl32.c
index af635430524e..788b31c91330 100644
--- a/drivers/media/v4l2-core/v4l2-compat-ioctl32.c
+++ b/drivers/media/v4l2-core/v4l2-compat-ioctl32.c
@@ -266,7 +266,7 @@ static int put_v4l2_create32(struct v4l2_create_buffers *kp, struct v4l2_create_
 
 struct v4l2_standard32 {
 	__u32		     index;
-	__u32		     id[2]; /* __u64 would get the alignment wrong */
+	compat_u64	     id;
 	__u8		     name[24];
 	struct v4l2_fract    frameperiod; /* Frames, not fields */
 	__u32		     framelines;
@@ -286,7 +286,7 @@ static int put_v4l2_standard32(struct v4l2_standard *kp, struct v4l2_standard32
 {
 	if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_standard32)) ||
 		put_user(kp->index, &up->index) ||
-		copy_to_user(up->id, &kp->id, sizeof(__u64)) ||
+		put_user(kp->id, &up->id) ||
 		copy_to_user(up->name, kp->name, 24) ||
 		copy_to_user(&up->frameperiod, &kp->frameperiod, sizeof(kp->frameperiod)) ||
 		put_user(kp->framelines, &up->framelines) ||
@@ -587,10 +587,10 @@ struct v4l2_input32 {
 	__u32	     type;		/*  Type of input */
 	__u32	     audioset;		/*  Associated audios (bitfield) */
 	__u32        tuner;             /*  Associated tuner */
-	v4l2_std_id  std;
+	compat_u64   std;
 	__u32	     status;
 	__u32	     reserved[4];
-} __attribute__ ((packed));
+};
 
 /* The 64-bit v4l2_input struct has extra padding at the end of the struct.
    Otherwise it is identical to the 32-bit version. */
@@ -738,6 +738,7 @@ static int put_v4l2_ext_controls32(struct v4l2_ext_controls *kp, struct v4l2_ext
 struct v4l2_event32 {
 	__u32				type;
 	union {
+		compat_s64		value64;
 		__u8			data[64];
 	} u;
 	__u32				pending;
diff --git a/drivers/media/v4l2-core/v4l2-ctrls.c b/drivers/media/v4l2-core/v4l2-ctrls.c
index b6b7dcc1b77d..e1e70b8694a8 100644
--- a/drivers/media/v4l2-core/v4l2-ctrls.c
+++ b/drivers/media/v4l2-core/v4l2-ctrls.c
@@ -2498,7 +2498,7 @@ int v4l2_query_ext_ctrl(struct v4l2_ctrl_handler *hdl, struct v4l2_query_ext_ctr
 			/* We found a control with the given ID, so just get
 			   the next valid one in the list. */
 			list_for_each_entry_continue(ref, &hdl->ctrl_refs, node) {
-				is_compound =
+				is_compound = ref->ctrl->is_array ||
 					ref->ctrl->type >= V4L2_CTRL_COMPOUND_TYPES;
 				if (id < ref->ctrl->id &&
 				    (is_compound & mask) == match)
@@ -2512,7 +2512,7 @@ int v4l2_query_ext_ctrl(struct v4l2_ctrl_handler *hdl, struct v4l2_query_ext_ctr
 			   is one, otherwise the first 'if' above would have
 			   been true. */
 			list_for_each_entry(ref, &hdl->ctrl_refs, node) {
-				is_compound =
+				is_compound = ref->ctrl->is_array ||
 					ref->ctrl->type >= V4L2_CTRL_COMPOUND_TYPES;
 				if (id < ref->ctrl->id &&
 				    (is_compound & mask) == match)
@@ -2884,7 +2884,7 @@ static int get_ctrl(struct v4l2_ctrl *ctrl, struct v4l2_ext_control *c)
 	 * cur_to_user() calls below would need to be modified not to access
 	 * userspace memory when called from get_ctrl().
 	 */
-	if (!ctrl->is_int)
+	if (!ctrl->is_int && ctrl->type != V4L2_CTRL_TYPE_INTEGER64)
 		return -EINVAL;
 
 	if (ctrl->flags & V4L2_CTRL_FLAG_WRITE_ONLY)
@@ -2942,9 +2942,9 @@ s64 v4l2_ctrl_g_ctrl_int64(struct v4l2_ctrl *ctrl)
 
 	/* It's a driver bug if this happens. */
 	WARN_ON(ctrl->is_ptr || ctrl->type != V4L2_CTRL_TYPE_INTEGER64);
-	c.value = 0;
+	c.value64 = 0;
 	get_ctrl(ctrl, &c);
-	return c.value;
+	return c.value64;
 }
 EXPORT_SYMBOL(v4l2_ctrl_g_ctrl_int64);
 
@@ -3043,7 +3043,7 @@ static void update_from_auto_cluster(struct v4l2_ctrl *master)
 {
 	int i;
 
-	for (i = 0; i < master->ncontrols; i++)
+	for (i = 1; i < master->ncontrols; i++)
 		cur_to_new(master->cluster[i]);
 	if (!call_op(master, g_volatile_ctrl))
 		for (i = 1; i < master->ncontrols; i++)
diff --git a/drivers/media/v4l2-core/videobuf2-dma-contig.c b/drivers/media/v4l2-core/videobuf2-dma-contig.c
index 2397ceb1dc6b..f42e66624734 100644
--- a/drivers/media/v4l2-core/videobuf2-dma-contig.c
+++ b/drivers/media/v4l2-core/videobuf2-dma-contig.c
@@ -100,7 +100,8 @@ static void vb2_dc_prepare(void *buf_priv)
 	if (!sgt || buf->db_attach)
 		return;
 
-	dma_sync_sg_for_device(buf->dev, sgt->sgl, sgt->nents, buf->dma_dir);
+	dma_sync_sg_for_device(buf->dev, sgt->sgl, sgt->orig_nents,
+			       buf->dma_dir);
 }
 
 static void vb2_dc_finish(void *buf_priv)
@@ -112,7 +113,7 @@ static void vb2_dc_finish(void *buf_priv)
 	if (!sgt || buf->db_attach)
 		return;
 
-	dma_sync_sg_for_cpu(buf->dev, sgt->sgl, sgt->nents, buf->dma_dir);
+	dma_sync_sg_for_cpu(buf->dev, sgt->sgl, sgt->orig_nents, buf->dma_dir);
 }
 
 /*********************************************/
diff --git a/drivers/media/v4l2-core/videobuf2-dma-sg.c b/drivers/media/v4l2-core/videobuf2-dma-sg.c
index be7bd6535c9d..07bd2605c2b1 100644
--- a/drivers/media/v4l2-core/videobuf2-dma-sg.c
+++ b/drivers/media/v4l2-core/videobuf2-dma-sg.c
@@ -210,7 +210,8 @@ static void vb2_dma_sg_prepare(void *buf_priv)
 	if (buf->db_attach)
 		return;
 
-	dma_sync_sg_for_device(buf->dev, sgt->sgl, sgt->nents, buf->dma_dir);
+	dma_sync_sg_for_device(buf->dev, sgt->sgl, sgt->orig_nents,
+			       buf->dma_dir);
 }
 
 static void vb2_dma_sg_finish(void *buf_priv)
@@ -222,7 +223,7 @@ static void vb2_dma_sg_finish(void *buf_priv)
 	if (buf->db_attach)
 		return;
 
-	dma_sync_sg_for_cpu(buf->dev, sgt->sgl, sgt->nents, buf->dma_dir);
+	dma_sync_sg_for_cpu(buf->dev, sgt->sgl, sgt->orig_nents, buf->dma_dir);
 }
 
 static void *vb2_dma_sg_get_userptr(void *alloc_ctx, unsigned long vaddr,
diff --git a/drivers/mtd/mtd_blkdevs.c b/drivers/mtd/mtd_blkdevs.c
index 44dc965a2f7c..e7a02ed9fba8 100644
--- a/drivers/mtd/mtd_blkdevs.c
+++ b/drivers/mtd/mtd_blkdevs.c
@@ -192,8 +192,8 @@ static int blktrans_open(struct block_device *bdev, fmode_t mode)
 	if (!dev)
 		return -ERESTARTSYS; /* FIXME: busy loop! -arnd*/
 
-	mutex_lock(&dev->lock);
 	mutex_lock(&mtd_table_mutex);
+	mutex_lock(&dev->lock);
 
 	if (dev->open)
 		goto unlock;
@@ -217,8 +217,8 @@ static int blktrans_open(struct block_device *bdev, fmode_t mode)
 
 unlock:
 	dev->open++;
-	mutex_unlock(&mtd_table_mutex);
 	mutex_unlock(&dev->lock);
+	mutex_unlock(&mtd_table_mutex);
 	blktrans_dev_put(dev);
 	return ret;
 
@@ -228,8 +228,8 @@ error_release:
 error_put:
 	module_put(dev->tr->owner);
 	kref_put(&dev->ref, blktrans_dev_release);
-	mutex_unlock(&mtd_table_mutex);
 	mutex_unlock(&dev->lock);
+	mutex_unlock(&mtd_table_mutex);
 	blktrans_dev_put(dev);
 	return ret;
 }
@@ -241,8 +241,8 @@ static void blktrans_release(struct gendisk *disk, fmode_t mode)
 	if (!dev)
 		return;
 
-	mutex_lock(&dev->lock);
 	mutex_lock(&mtd_table_mutex);
+	mutex_lock(&dev->lock);
 
 	if (--dev->open)
 		goto unlock;
@@ -256,8 +256,8 @@ static void blktrans_release(struct gendisk *disk, fmode_t mode)
 		__put_mtd_device(dev->mtd);
 	}
 unlock:
-	mutex_unlock(&mtd_table_mutex);
 	mutex_unlock(&dev->lock);
+	mutex_unlock(&mtd_table_mutex);
 	blktrans_dev_put(dev);
 }
 
diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c
index cafdb8855a79..919a936abc42 100644
--- a/drivers/mtd/mtdpart.c
+++ b/drivers/mtd/mtdpart.c
@@ -664,8 +664,10 @@ int add_mtd_partitions(struct mtd_info *master,
 
 	for (i = 0; i < nbparts; i++) {
 		slave = allocate_partition(master, parts + i, i, cur_offset);
-		if (IS_ERR(slave))
+		if (IS_ERR(slave)) {
+			del_mtd_partitions(master);
 			return PTR_ERR(slave);
+		}
 
 		mutex_lock(&mtd_partitions_mutex);
 		list_add(&slave->list, &mtd_partitions);
diff --git a/drivers/mtd/nand/jz4740_nand.c b/drivers/mtd/nand/jz4740_nand.c
index ebf2cce04cba..ca3270b1299c 100644
--- a/drivers/mtd/nand/jz4740_nand.c
+++ b/drivers/mtd/nand/jz4740_nand.c
@@ -25,6 +25,7 @@
 
 #include <linux/gpio.h>
 
+#include <asm/mach-jz4740/gpio.h>
 #include <asm/mach-jz4740/jz4740_nand.h>
 
 #define JZ_REG_NAND_CTRL	0x50
diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index ceb68ca8277a..066f967e03b1 100644
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -2964,7 +2964,7 @@ static void nand_resume(struct mtd_info *mtd)
  */
 static void nand_shutdown(struct mtd_info *mtd)
 {
-	nand_get_device(mtd, FL_SHUTDOWN);
+	nand_get_device(mtd, FL_PM_SUSPENDED);
 }
 
 /* Set default functions */
diff --git a/drivers/mtd/ubi/wl.c b/drivers/mtd/ubi/wl.c
index eb4489f9082f..56065632a5b8 100644
--- a/drivers/mtd/ubi/wl.c
+++ b/drivers/mtd/ubi/wl.c
@@ -603,6 +603,7 @@ static int schedule_erase(struct ubi_device *ubi, struct ubi_wl_entry *e,
 	return 0;
 }
 
+static int __erase_worker(struct ubi_device *ubi, struct ubi_work *wl_wrk);
 /**
  * do_sync_erase - run the erase worker synchronously.
  * @ubi: UBI device description object
@@ -615,20 +616,16 @@ static int schedule_erase(struct ubi_device *ubi, struct ubi_wl_entry *e,
 static int do_sync_erase(struct ubi_device *ubi, struct ubi_wl_entry *e,
 			 int vol_id, int lnum, int torture)
 {
-	struct ubi_work *wl_wrk;
+	struct ubi_work wl_wrk;
 
 	dbg_wl("sync erase of PEB %i", e->pnum);
 
-	wl_wrk = kmalloc(sizeof(struct ubi_work), GFP_NOFS);
-	if (!wl_wrk)
-		return -ENOMEM;
-
-	wl_wrk->e = e;
-	wl_wrk->vol_id = vol_id;
-	wl_wrk->lnum = lnum;
-	wl_wrk->torture = torture;
+	wl_wrk.e = e;
+	wl_wrk.vol_id = vol_id;
+	wl_wrk.lnum = lnum;
+	wl_wrk.torture = torture;
 
-	return erase_worker(ubi, wl_wrk, 0);
+	return __erase_worker(ubi, &wl_wrk);
 }
 
 /**
@@ -1014,7 +1011,7 @@ out_unlock:
 }
 
 /**
- * erase_worker - physical eraseblock erase worker function.
+ * __erase_worker - physical eraseblock erase worker function.
  * @ubi: UBI device description object
  * @wl_wrk: the work object
  * @shutdown: non-zero if the worker has to free memory and exit
@@ -1025,8 +1022,7 @@ out_unlock:
  * needed. Returns zero in case of success and a negative error code in case of
  * failure.
  */
-static int erase_worker(struct ubi_device *ubi, struct ubi_work *wl_wrk,
-			int shutdown)
+static int __erase_worker(struct ubi_device *ubi, struct ubi_work *wl_wrk)
 {
 	struct ubi_wl_entry *e = wl_wrk->e;
 	int pnum = e->pnum;
@@ -1034,21 +1030,11 @@ static int erase_worker(struct ubi_device *ubi, struct ubi_work *wl_wrk,
 	int lnum = wl_wrk->lnum;
 	int err, available_consumed = 0;
 
-	if (shutdown) {
-		dbg_wl("cancel erasure of PEB %d EC %d", pnum, e->ec);
-		kfree(wl_wrk);
-		wl_entry_destroy(ubi, e);
-		return 0;
-	}
-
 	dbg_wl("erase PEB %d EC %d LEB %d:%d",
 	       pnum, e->ec, wl_wrk->vol_id, wl_wrk->lnum);
 
 	err = sync_erase(ubi, e, wl_wrk->torture);
 	if (!err) {
-		/* Fine, we've erased it successfully */
-		kfree(wl_wrk);
-
 		spin_lock(&ubi->wl_lock);
 		wl_tree_add(e, &ubi->free);
 		ubi->free_count++;
@@ -1066,7 +1052,6 @@ static int erase_worker(struct ubi_device *ubi, struct ubi_work *wl_wrk,
 	}
 
 	ubi_err(ubi, "failed to erase PEB %d, error %d", pnum, err);
-	kfree(wl_wrk);
 
 	if (err == -EINTR || err == -ENOMEM || err == -EAGAIN ||
 	    err == -EBUSY) {
@@ -1075,6 +1060,7 @@ static int erase_worker(struct ubi_device *ubi, struct ubi_work *wl_wrk,
 		/* Re-schedule the LEB for erasure */
 		err1 = schedule_erase(ubi, e, vol_id, lnum, 0);
 		if (err1) {
+			wl_entry_destroy(ubi, e);
 			err = err1;
 			goto out_ro;
 		}
@@ -1150,6 +1136,25 @@ out_ro:
 	return err;
 }
 
+static int erase_worker(struct ubi_device *ubi, struct ubi_work *wl_wrk,
+			  int shutdown)
+{
+	int ret;
+
+	if (shutdown) {
+		struct ubi_wl_entry *e = wl_wrk->e;
+
+		dbg_wl("cancel erasure of PEB %d EC %d", e->pnum, e->ec);
+		kfree(wl_wrk);
+		wl_entry_destroy(ubi, e);
+		return 0;
+	}
+
+	ret = __erase_worker(ubi, wl_wrk);
+	kfree(wl_wrk);
+	return ret;
+}
+
 /**
  * ubi_wl_put_peb - return a PEB to the wear-leveling sub-system.
  * @ubi: UBI device description object
diff --git a/drivers/net/wireless/rtlwifi/rtl8821ae/hw.c b/drivers/net/wireless/rtlwifi/rtl8821ae/hw.c
index 6e9418ed90c2..bbb789f8990b 100644
--- a/drivers/net/wireless/rtlwifi/rtl8821ae/hw.c
+++ b/drivers/net/wireless/rtlwifi/rtl8821ae/hw.c
@@ -2272,7 +2272,7 @@ void rtl8821ae_enable_interrupt(struct ieee80211_hw *hw)
 	struct rtl_priv *rtlpriv = rtl_priv(hw);
 	struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 
-	if (!rtlpci->int_clear)
+	if (rtlpci->int_clear)
 		rtl8821ae_clear_interrupt(hw);/*clear it here first*/
 
 	rtl_write_dword(rtlpriv, REG_HIMR, rtlpci->irq_mask[0] & 0xFFFFFFFF);
diff --git a/drivers/net/wireless/rtlwifi/rtl8821ae/sw.c b/drivers/net/wireless/rtlwifi/rtl8821ae/sw.c
index 8ee141a55bc5..142bdff4ed60 100644
--- a/drivers/net/wireless/rtlwifi/rtl8821ae/sw.c
+++ b/drivers/net/wireless/rtlwifi/rtl8821ae/sw.c
@@ -448,7 +448,7 @@ MODULE_PARM_DESC(fwlps, "Set to 1 to use FW control power save (default 1)\n");
 MODULE_PARM_DESC(msi, "Set to 1 to use MSI interrupts mode (default 1)\n");
 MODULE_PARM_DESC(debug, "Set debug level (0-5) (default 0)");
 MODULE_PARM_DESC(disable_watchdog, "Set to 1 to disable the watchdog (default 0)\n");
-MODULE_PARM_DESC(int_clear, "Set to 1 to disable interrupt clear before set (default 0)\n");
+MODULE_PARM_DESC(int_clear, "Set to 0 to disable interrupt clear before set (default 1)\n");
 
 static SIMPLE_DEV_PM_OPS(rtlwifi_pm_ops, rtl_pci_suspend, rtl_pci_resume);
 
diff --git a/drivers/net/wireless/ti/wlcore/io.h b/drivers/net/wireless/ti/wlcore/io.h
index 0305729d0986..10cf3747694d 100644
--- a/drivers/net/wireless/ti/wlcore/io.h
+++ b/drivers/net/wireless/ti/wlcore/io.h
@@ -207,19 +207,23 @@ static inline int __must_check wlcore_write_reg(struct wl1271 *wl, int reg,
 
 static inline void wl1271_power_off(struct wl1271 *wl)
 {
-	int ret;
+	int ret = 0;
 
 	if (!test_bit(WL1271_FLAG_GPIO_POWER, &wl->flags))
 		return;
 
-	ret = wl->if_ops->power(wl->dev, false);
+	if (wl->if_ops->power)
+		ret = wl->if_ops->power(wl->dev, false);
 	if (!ret)
 		clear_bit(WL1271_FLAG_GPIO_POWER, &wl->flags);
 }
 
 static inline int wl1271_power_on(struct wl1271 *wl)
 {
-	int ret = wl->if_ops->power(wl->dev, true);
+	int ret = 0;
+
+	if (wl->if_ops->power)
+		ret = wl->if_ops->power(wl->dev, true);
 	if (ret == 0)
 		set_bit(WL1271_FLAG_GPIO_POWER, &wl->flags);
 
diff --git a/drivers/net/wireless/ti/wlcore/spi.c b/drivers/net/wireless/ti/wlcore/spi.c
index f1ac2839d97c..720e4e4b5a3c 100644
--- a/drivers/net/wireless/ti/wlcore/spi.c
+++ b/drivers/net/wireless/ti/wlcore/spi.c
@@ -73,7 +73,10 @@
  */
 #define SPI_AGGR_BUFFER_SIZE (4 * PAGE_SIZE)
 
-#define WSPI_MAX_NUM_OF_CHUNKS (SPI_AGGR_BUFFER_SIZE / WSPI_MAX_CHUNK_SIZE)
+/* Maximum number of SPI write chunks */
+#define WSPI_MAX_NUM_OF_CHUNKS \
+	((SPI_AGGR_BUFFER_SIZE / WSPI_MAX_CHUNK_SIZE) + 1)
+
 
 struct wl12xx_spi_glue {
 	struct device *dev;
@@ -268,9 +271,10 @@ static int __must_check wl12xx_spi_raw_write(struct device *child, int addr,
 					     void *buf, size_t len, bool fixed)
 {
 	struct wl12xx_spi_glue *glue = dev_get_drvdata(child->parent);
-	struct spi_transfer t[2 * (WSPI_MAX_NUM_OF_CHUNKS + 1)];
+	/* SPI write buffers - 2 for each chunk */
+	struct spi_transfer t[2 * WSPI_MAX_NUM_OF_CHUNKS];
 	struct spi_message m;
-	u32 commands[WSPI_MAX_NUM_OF_CHUNKS];
+	u32 commands[WSPI_MAX_NUM_OF_CHUNKS]; /* 1 command per chunk */
 	u32 *cmd;
 	u32 chunk_len;
 	int i;
diff --git a/drivers/pci/bus.c b/drivers/pci/bus.c
index d3346d23963b..89b3befc7155 100644
--- a/drivers/pci/bus.c
+++ b/drivers/pci/bus.c
@@ -140,6 +140,8 @@ static int pci_bus_alloc_from_region(struct pci_bus *bus, struct resource *res,
 	type_mask |= IORESOURCE_TYPE_BITS;
 
 	pci_bus_for_each_resource(bus, r, i) {
+		resource_size_t min_used = min;
+
 		if (!r)
 			continue;
 
@@ -163,12 +165,12 @@ static int pci_bus_alloc_from_region(struct pci_bus *bus, struct resource *res,
 		 * overrides "min".
 		 */
 		if (avail.start)
-			min = avail.start;
+			min_used = avail.start;
 
 		max = avail.end;
 
 		/* Ok, try it out.. */
-		ret = allocate_resource(r, res, size, min, max,
+		ret = allocate_resource(r, res, size, min_used, max,
 					align, alignf, alignf_data);
 		if (ret == 0)
 			return 0;
diff --git a/drivers/pci/host/pci-dra7xx.c b/drivers/pci/host/pci-dra7xx.c
index 199e29a044cd..ee978705a6f5 100644
--- a/drivers/pci/host/pci-dra7xx.c
+++ b/drivers/pci/host/pci-dra7xx.c
@@ -295,7 +295,8 @@ static int __init dra7xx_add_pcie_port(struct dra7xx_pcie *dra7xx,
 	}
 
 	ret = devm_request_irq(&pdev->dev, pp->irq,
-			       dra7xx_pcie_msi_irq_handler, IRQF_SHARED,
+			       dra7xx_pcie_msi_irq_handler,
+			       IRQF_SHARED | IRQF_NO_THREAD,
 			       "dra7-pcie-msi",	pp);
 	if (ret) {
 		dev_err(&pdev->dev, "failed to request irq\n");
diff --git a/drivers/pci/host/pci-exynos.c b/drivers/pci/host/pci-exynos.c
index f9f468d9a819..7b6be7791d33 100644
--- a/drivers/pci/host/pci-exynos.c
+++ b/drivers/pci/host/pci-exynos.c
@@ -523,7 +523,8 @@ static int __init exynos_add_pcie_port(struct pcie_port *pp,
 
 		ret = devm_request_irq(&pdev->dev, pp->msi_irq,
 					exynos_pcie_msi_irq_handler,
-					IRQF_SHARED, "exynos-pcie", pp);
+					IRQF_SHARED | IRQF_NO_THREAD,
+					"exynos-pcie", pp);
 		if (ret) {
 			dev_err(&pdev->dev, "failed to request msi irq\n");
 			return ret;
diff --git a/drivers/pci/host/pci-imx6.c b/drivers/pci/host/pci-imx6.c
index 8f3a9813c4e5..58713d57c426 100644
--- a/drivers/pci/host/pci-imx6.c
+++ b/drivers/pci/host/pci-imx6.c
@@ -536,7 +536,8 @@ static int __init imx6_add_pcie_port(struct pcie_port *pp,
 
 		ret = devm_request_irq(&pdev->dev, pp->msi_irq,
 				       imx6_pcie_msi_handler,
-				       IRQF_SHARED, "mx6-pcie-msi", pp);
+				       IRQF_SHARED | IRQF_NO_THREAD,
+				       "mx6-pcie-msi", pp);
 		if (ret) {
 			dev_err(&pdev->dev, "failed to request MSI irq\n");
 			return -ENODEV;
diff --git a/drivers/pci/host/pci-tegra.c b/drivers/pci/host/pci-tegra.c
index 81df0c1fe063..46d5e07dbdfe 100644
--- a/drivers/pci/host/pci-tegra.c
+++ b/drivers/pci/host/pci-tegra.c
@@ -1288,7 +1288,7 @@ static int tegra_pcie_enable_msi(struct tegra_pcie *pcie)
 
 	msi->irq = err;
 
-	err = request_irq(msi->irq, tegra_pcie_msi_irq, 0,
+	err = request_irq(msi->irq, tegra_pcie_msi_irq, IRQF_NO_THREAD,
 			  tegra_msi_irq_chip.name, pcie);
 	if (err < 0) {
 		dev_err(&pdev->dev, "failed to request IRQ: %d\n", err);
diff --git a/drivers/pci/host/pcie-rcar.c b/drivers/pci/host/pcie-rcar.c
index 7678fe0820d7..b86e42fcf19f 100644
--- a/drivers/pci/host/pcie-rcar.c
+++ b/drivers/pci/host/pcie-rcar.c
@@ -694,14 +694,16 @@ static int rcar_pcie_enable_msi(struct rcar_pcie *pcie)
 
 	/* Two irqs are for MSI, but they are also used for non-MSI irqs */
 	err = devm_request_irq(&pdev->dev, msi->irq1, rcar_pcie_msi_irq,
-			       IRQF_SHARED, rcar_msi_irq_chip.name, pcie);
+			       IRQF_SHARED | IRQF_NO_THREAD,
+			       rcar_msi_irq_chip.name, pcie);
 	if (err < 0) {
 		dev_err(&pdev->dev, "failed to request IRQ: %d\n", err);
 		goto err;
 	}
 
 	err = devm_request_irq(&pdev->dev, msi->irq2, rcar_pcie_msi_irq,
-			       IRQF_SHARED, rcar_msi_irq_chip.name, pcie);
+			       IRQF_SHARED | IRQF_NO_THREAD,
+			       rcar_msi_irq_chip.name, pcie);
 	if (err < 0) {
 		dev_err(&pdev->dev, "failed to request IRQ: %d\n", err);
 		goto err;
diff --git a/drivers/pci/host/pcie-spear13xx.c b/drivers/pci/host/pcie-spear13xx.c
index 98d2683181bc..4aca7167ed95 100644
--- a/drivers/pci/host/pcie-spear13xx.c
+++ b/drivers/pci/host/pcie-spear13xx.c
@@ -163,34 +163,36 @@ static int spear13xx_pcie_establish_link(struct pcie_port *pp)
 	 * default value in capability register is 512 bytes. So force
 	 * it to 128 here.
 	 */
-	dw_pcie_cfg_read(pp->dbi_base, exp_cap_off + PCI_EXP_DEVCTL, 4, &val);
+	dw_pcie_cfg_read(pp->dbi_base + exp_cap_off + PCI_EXP_DEVCTL,
+				0, 2, &val);
 	val &= ~PCI_EXP_DEVCTL_READRQ;
-	dw_pcie_cfg_write(pp->dbi_base, exp_cap_off + PCI_EXP_DEVCTL, 4, val);
+	dw_pcie_cfg_write(pp->dbi_base + exp_cap_off + PCI_EXP_DEVCTL,
+				0, 2, val);
 
-	dw_pcie_cfg_write(pp->dbi_base, PCI_VENDOR_ID, 2, 0x104A);
-	dw_pcie_cfg_write(pp->dbi_base, PCI_DEVICE_ID, 2, 0xCD80);
+	dw_pcie_cfg_write(pp->dbi_base + PCI_VENDOR_ID, 0, 2, 0x104A);
+	dw_pcie_cfg_write(pp->dbi_base + PCI_VENDOR_ID, 2, 2, 0xCD80);
 
 	/*
 	 * if is_gen1 is set then handle it, so that some buggy card
 	 * also works
 	 */
 	if (spear13xx_pcie->is_gen1) {
-		dw_pcie_cfg_read(pp->dbi_base, exp_cap_off + PCI_EXP_LNKCAP, 4,
-				 &val);
+		dw_pcie_cfg_read(pp->dbi_base + exp_cap_off + PCI_EXP_LNKCAP,
+					0, 4, &val);
 		if ((val & PCI_EXP_LNKCAP_SLS) != PCI_EXP_LNKCAP_SLS_2_5GB) {
 			val &= ~((u32)PCI_EXP_LNKCAP_SLS);
 			val |= PCI_EXP_LNKCAP_SLS_2_5GB;
-			dw_pcie_cfg_write(pp->dbi_base, exp_cap_off +
-					  PCI_EXP_LNKCAP, 4, val);
+			dw_pcie_cfg_write(pp->dbi_base + exp_cap_off +
+						PCI_EXP_LNKCAP, 0, 4, val);
 		}
 
-		dw_pcie_cfg_read(pp->dbi_base, exp_cap_off + PCI_EXP_LNKCTL2, 4,
-				 &val);
+		dw_pcie_cfg_read(pp->dbi_base + exp_cap_off + PCI_EXP_LNKCTL2,
+					0, 2, &val);
 		if ((val & PCI_EXP_LNKCAP_SLS) != PCI_EXP_LNKCAP_SLS_2_5GB) {
 			val &= ~((u32)PCI_EXP_LNKCAP_SLS);
 			val |= PCI_EXP_LNKCAP_SLS_2_5GB;
-			dw_pcie_cfg_write(pp->dbi_base, exp_cap_off +
-					  PCI_EXP_LNKCTL2, 4, val);
+			dw_pcie_cfg_write(pp->dbi_base + exp_cap_off +
+						PCI_EXP_LNKCTL2, 0, 2, val);
 		}
 	}
 
@@ -279,7 +281,8 @@ static int spear13xx_add_pcie_port(struct pcie_port *pp,
 		return -ENODEV;
 	}
 	ret = devm_request_irq(dev, pp->irq, spear13xx_pcie_irq_handler,
-			       IRQF_SHARED, "spear1340-pcie", pp);
+			       IRQF_SHARED | IRQF_NO_THREAD,
+			       "spear1340-pcie", pp);
 	if (ret) {
 		dev_err(dev, "failed to request irq %d\n", pp->irq);
 		return ret;
diff --git a/drivers/pci/host/pcie-xilinx.c b/drivers/pci/host/pcie-xilinx.c
index 3c7a0d580b1e..4cfa46360d12 100644
--- a/drivers/pci/host/pcie-xilinx.c
+++ b/drivers/pci/host/pcie-xilinx.c
@@ -781,7 +781,8 @@ static int xilinx_pcie_parse_dt(struct xilinx_pcie_port *port)
 
 	port->irq = irq_of_parse_and_map(node, 0);
 	err = devm_request_irq(dev, port->irq, xilinx_pcie_intr_handler,
-			       IRQF_SHARED, "xilinx-pcie", port);
+			       IRQF_SHARED | IRQF_NO_THREAD,
+			       "xilinx-pcie", port);
 	if (err) {
 		dev_err(dev, "unable to request irq %d\n", port->irq);
 		return err;
diff --git a/drivers/pci/iov.c b/drivers/pci/iov.c
index ee0ebff103a4..1eadc74d88b4 100644
--- a/drivers/pci/iov.c
+++ b/drivers/pci/iov.c
@@ -54,24 +54,29 @@ static inline void pci_iov_set_numvfs(struct pci_dev *dev, int nr_virtfn)
  * The PF consumes one bus number.  NumVFs, First VF Offset, and VF Stride
  * determine how many additional bus numbers will be consumed by VFs.
  *
- * Iterate over all valid NumVFs and calculate the maximum number of bus
- * numbers that could ever be required.
+ * Iterate over all valid NumVFs, validate offset and stride, and calculate
+ * the maximum number of bus numbers that could ever be required.
  */
-static inline u8 virtfn_max_buses(struct pci_dev *dev)
+static int compute_max_vf_buses(struct pci_dev *dev)
 {
 	struct pci_sriov *iov = dev->sriov;
-	int nr_virtfn;
-	u8 max = 0;
-	int busnr;
+	int nr_virtfn, busnr, rc = 0;
 
-	for (nr_virtfn = 1; nr_virtfn <= iov->total_VFs; nr_virtfn++) {
+	for (nr_virtfn = iov->total_VFs; nr_virtfn; nr_virtfn--) {
 		pci_iov_set_numvfs(dev, nr_virtfn);
+		if (!iov->offset || (nr_virtfn > 1 && !iov->stride)) {
+			rc = -EIO;
+			goto out;
+		}
+
 		busnr = pci_iov_virtfn_bus(dev, nr_virtfn - 1);
-		if (busnr > max)
-			max = busnr;
+		if (busnr > iov->max_VF_buses)
+			iov->max_VF_buses = busnr;
 	}
 
-	return max;
+out:
+	pci_iov_set_numvfs(dev, 0);
+	return rc;
 }
 
 static struct pci_bus *virtfn_add_bus(struct pci_bus *bus, int busnr)
@@ -384,7 +389,7 @@ static int sriov_init(struct pci_dev *dev, int pos)
 	int rc;
 	int nres;
 	u32 pgsz;
-	u16 ctrl, total, offset, stride;
+	u16 ctrl, total;
 	struct pci_sriov *iov;
 	struct resource *res;
 	struct pci_dev *pdev;
@@ -414,11 +419,6 @@ static int sriov_init(struct pci_dev *dev, int pos)
 
 found:
 	pci_write_config_word(dev, pos + PCI_SRIOV_CTRL, ctrl);
-	pci_write_config_word(dev, pos + PCI_SRIOV_NUM_VF, 0);
-	pci_read_config_word(dev, pos + PCI_SRIOV_VF_OFFSET, &offset);
-	pci_read_config_word(dev, pos + PCI_SRIOV_VF_STRIDE, &stride);
-	if (!offset || (total > 1 && !stride))
-		return -EIO;
 
 	pci_read_config_dword(dev, pos + PCI_SRIOV_SUP_PGSIZE, &pgsz);
 	i = PAGE_SHIFT > 12 ? PAGE_SHIFT - 12 : 0;
@@ -456,8 +456,6 @@ found:
 	iov->nres = nres;
 	iov->ctrl = ctrl;
 	iov->total_VFs = total;
-	iov->offset = offset;
-	iov->stride = stride;
 	iov->pgsz = pgsz;
 	iov->self = dev;
 	pci_read_config_dword(dev, pos + PCI_SRIOV_CAP, &iov->cap);
@@ -474,10 +472,15 @@ found:
 
 	dev->sriov = iov;
 	dev->is_physfn = 1;
-	iov->max_VF_buses = virtfn_max_buses(dev);
+	rc = compute_max_vf_buses(dev);
+	if (rc)
+		goto fail_max_buses;
 
 	return 0;
 
+fail_max_buses:
+	dev->sriov = NULL;
+	dev->is_physfn = 0;
 failed:
 	for (i = 0; i < PCI_SRIOV_NUM_BARS; i++) {
 		res = &dev->resource[i + PCI_IOV_RESOURCES];
diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c
index 92618686604c..eead54cd01b2 100644
--- a/drivers/pci/pci-sysfs.c
+++ b/drivers/pci/pci-sysfs.c
@@ -216,7 +216,10 @@ static ssize_t numa_node_store(struct device *dev,
 	if (ret)
 		return ret;
 
-	if (node >= MAX_NUMNODES || !node_online(node))
+	if ((node < 0 && node != NUMA_NO_NODE) || node >= MAX_NUMNODES)
+		return -EINVAL;
+
+	if (node != NUMA_NO_NODE && !node_online(node))
 		return -EINVAL;
 
 	add_taint(TAINT_FIRMWARE_WORKAROUND, LOCKDEP_STILL_OK);
diff --git a/drivers/remoteproc/remoteproc_debugfs.c b/drivers/remoteproc/remoteproc_debugfs.c
index 9d30809bb407..916af5096f57 100644
--- a/drivers/remoteproc/remoteproc_debugfs.c
+++ b/drivers/remoteproc/remoteproc_debugfs.c
@@ -156,7 +156,7 @@ rproc_recovery_write(struct file *filp, const char __user *user_buf,
 	char buf[10];
 	int ret;
 
-	if (count > sizeof(buf))
+	if (count < 1 || count > sizeof(buf))
 		return count;
 
 	ret = copy_from_user(buf, user_buf, count);
diff --git a/drivers/spi/spi-atmel.c b/drivers/spi/spi-atmel.c
index 63318e2afba1..3fff59ce065f 100644
--- a/drivers/spi/spi-atmel.c
+++ b/drivers/spi/spi-atmel.c
@@ -773,7 +773,8 @@ static int atmel_spi_next_xfer_dma_submit(struct spi_master *master,
 
 	*plen = len;
 
-	if (atmel_spi_dma_slave_config(as, &slave_config, 8))
+	if (atmel_spi_dma_slave_config(as, &slave_config,
+				       xfer->bits_per_word))
 		goto err_exit;
 
 	/* Send both scatterlists */
diff --git a/drivers/spi/spi-omap2-mcspi.c b/drivers/spi/spi-omap2-mcspi.c
index 3d09e0b69b73..1f8903d356e5 100644
--- a/drivers/spi/spi-omap2-mcspi.c
+++ b/drivers/spi/spi-omap2-mcspi.c
@@ -1217,6 +1217,33 @@ out:
 	return status;
 }
 
+static int omap2_mcspi_prepare_message(struct spi_master *master,
+				       struct spi_message *msg)
+{
+	struct omap2_mcspi	*mcspi = spi_master_get_devdata(master);
+	struct omap2_mcspi_regs	*ctx = &mcspi->ctx;
+	struct omap2_mcspi_cs	*cs;
+
+	/* Only a single channel can have the FORCE bit enabled
+	 * in its chconf0 register.
+	 * Scan all channels and disable them except the current one.
+	 * A FORCE can remain from a last transfer having cs_change enabled
+	 */
+	list_for_each_entry(cs, &ctx->cs, node) {
+		if (msg->spi->controller_state == cs)
+			continue;
+
+		if ((cs->chconf0 & OMAP2_MCSPI_CHCONF_FORCE)) {
+			cs->chconf0 &= ~OMAP2_MCSPI_CHCONF_FORCE;
+			writel_relaxed(cs->chconf0,
+					cs->base + OMAP2_MCSPI_CHCONF0);
+			readl_relaxed(cs->base + OMAP2_MCSPI_CHCONF0);
+		}
+	}
+
+	return 0;
+}
+
 static int omap2_mcspi_transfer_one(struct spi_master *master,
 		struct spi_device *spi, struct spi_transfer *t)
 {
@@ -1344,6 +1371,7 @@ static int omap2_mcspi_probe(struct platform_device *pdev)
 	master->bits_per_word_mask = SPI_BPW_RANGE_MASK(4, 32);
 	master->setup = omap2_mcspi_setup;
 	master->auto_runtime_pm = true;
+	master->prepare_message = omap2_mcspi_prepare_message;
 	master->transfer_one = omap2_mcspi_transfer_one;
 	master->set_cs = omap2_mcspi_set_cs;
 	master->cleanup = omap2_mcspi_cleanup;
diff --git a/drivers/spi/spi-ti-qspi.c b/drivers/spi/spi-ti-qspi.c
index aa6d284131e0..81b84858cfee 100644
--- a/drivers/spi/spi-ti-qspi.c
+++ b/drivers/spi/spi-ti-qspi.c
@@ -410,11 +410,10 @@ static int ti_qspi_start_transfer_one(struct spi_master *master,
 
 	mutex_unlock(&qspi->list_lock);
 
+	ti_qspi_write(qspi, qspi->cmd | QSPI_INVAL, QSPI_SPI_CMD_REG);
 	m->status = status;
 	spi_finalize_current_message(master);
 
-	ti_qspi_write(qspi, qspi->cmd | QSPI_INVAL, QSPI_SPI_CMD_REG);
-
 	return status;
 }
 
diff --git a/drivers/spi/spi-xilinx.c b/drivers/spi/spi-xilinx.c
index a339c1e9997a..3009121173cd 100644
--- a/drivers/spi/spi-xilinx.c
+++ b/drivers/spi/spi-xilinx.c
@@ -270,6 +270,7 @@ static int xilinx_spi_txrx_bufs(struct spi_device *spi, struct spi_transfer *t)
 
 	while (remaining_words) {
 		int n_words, tx_words, rx_words;
+		u32 sr;
 
 		n_words = min(remaining_words, xspi->buffer_size);
 
@@ -284,24 +285,33 @@ static int xilinx_spi_txrx_bufs(struct spi_device *spi, struct spi_transfer *t)
 		if (use_irq) {
 			xspi->write_fn(cr, xspi->regs + XSPI_CR_OFFSET);
 			wait_for_completion(&xspi->done);
-		} else
-			while (!(xspi->read_fn(xspi->regs + XSPI_SR_OFFSET) &
-						XSPI_SR_TX_EMPTY_MASK))
-				;
-
-		/* A transmit has just completed. Process received data and
-		 * check for more data to transmit. Always inhibit the
-		 * transmitter while the Isr refills the transmit register/FIFO,
-		 * or make sure it is stopped if we're done.
-		 */
-		if (use_irq)
+			/* A transmit has just completed. Process received data
+			 * and check for more data to transmit. Always inhibit
+			 * the transmitter while the Isr refills the transmit
+			 * register/FIFO, or make sure it is stopped if we're
+			 * done.
+			 */
 			xspi->write_fn(cr | XSPI_CR_TRANS_INHIBIT,
-			       xspi->regs + XSPI_CR_OFFSET);
+				       xspi->regs + XSPI_CR_OFFSET);
+			sr = XSPI_SR_TX_EMPTY_MASK;
+		} else
+			sr = xspi->read_fn(xspi->regs + XSPI_SR_OFFSET);
 
 		/* Read out all the data from the Rx FIFO */
 		rx_words = n_words;
-		while (rx_words--)
-			xilinx_spi_rx(xspi);
+		while (rx_words) {
+			if ((sr & XSPI_SR_TX_EMPTY_MASK) && (rx_words > 1)) {
+				xilinx_spi_rx(xspi);
+				rx_words--;
+				continue;
+			}
+
+			sr = xspi->read_fn(xspi->regs + XSPI_SR_OFFSET);
+			if (!(sr & XSPI_SR_RX_EMPTY_MASK)) {
+				xilinx_spi_rx(xspi);
+				rx_words--;
+			}
+		}
 
 		remaining_words -= n_words;
 	}
diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index a5f53de813d3..a83d9d07df58 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -1627,7 +1627,7 @@ struct spi_master *spi_alloc_master(struct device *dev, unsigned size)
 	master->bus_num = -1;
 	master->num_chipselect = 1;
 	master->dev.class = &spi_master_class;
-	master->dev.parent = get_device(dev);
+	master->dev.parent = dev;
 	spi_master_set_devdata(master, &master[1]);
 
 	return master;
diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c
index a0285da0244c..1fc7a84a2ded 100644
--- a/drivers/tty/n_tty.c
+++ b/drivers/tty/n_tty.c
@@ -258,16 +258,13 @@ static void n_tty_check_throttle(struct tty_struct *tty)
 
 static void n_tty_check_unthrottle(struct tty_struct *tty)
 {
-	if (tty->driver->type == TTY_DRIVER_TYPE_PTY &&
-	    tty->link->ldisc->ops->write_wakeup == n_tty_write_wakeup) {
+	if (tty->driver->type == TTY_DRIVER_TYPE_PTY) {
 		if (chars_in_buffer(tty) > TTY_THRESHOLD_UNTHROTTLE)
 			return;
 		if (!tty->count)
 			return;
 		n_tty_kick_worker(tty);
-		n_tty_write_wakeup(tty->link);
-		if (waitqueue_active(&tty->link->write_wait))
-			wake_up_interruptible_poll(&tty->link->write_wait, POLLOUT);
+		tty_wakeup(tty->link);
 		return;
 	}
 
@@ -2058,13 +2055,13 @@ static int canon_copy_from_read_buf(struct tty_struct *tty,
 	size_t eol;
 	size_t tail;
 	int ret, found = 0;
-	bool eof_push = 0;
 
 	/* N.B. avoid overrun if nr == 0 */
-	n = min(*nr, smp_load_acquire(&ldata->canon_head) - ldata->read_tail);
-	if (!n)
+	if (!*nr)
 		return 0;
 
+	n = min(*nr + 1, smp_load_acquire(&ldata->canon_head) - ldata->read_tail);
+
 	tail = ldata->read_tail & (N_TTY_BUF_SIZE - 1);
 	size = min_t(size_t, tail + n, N_TTY_BUF_SIZE);
 
@@ -2085,12 +2082,11 @@ static int canon_copy_from_read_buf(struct tty_struct *tty,
 	n = eol - tail;
 	if (n > N_TTY_BUF_SIZE)
 		n += N_TTY_BUF_SIZE;
-	n += found;
-	c = n;
+	c = n + found;
 
-	if (found && !ldata->push && read_buf(ldata, eol) == __DISABLED_CHAR) {
-		n--;
-		eof_push = !n && ldata->read_tail != ldata->line_start;
+	if (!found || read_buf(ldata, eol) != __DISABLED_CHAR) {
+		c = min(*nr, c);
+		n = c;
 	}
 
 	n_tty_trace("%s: eol:%zu found:%d n:%zu c:%zu size:%zu more:%zu\n",
@@ -2120,7 +2116,7 @@ static int canon_copy_from_read_buf(struct tty_struct *tty,
 			ldata->push = 0;
 		tty_audit_push(tty);
 	}
-	return eof_push ? -EAGAIN : 0;
+	return 0;
 }
 
 extern ssize_t redirected_tty_write(struct file *, const char __user *,
@@ -2299,10 +2295,7 @@ static ssize_t n_tty_read(struct tty_struct *tty, struct file *file,
 
 		if (ldata->icanon && !L_EXTPROC(tty)) {
 			retval = canon_copy_from_read_buf(tty, &b, &nr);
-			if (retval == -EAGAIN) {
-				retval = 0;
-				continue;
-			} else if (retval)
+			if (retval)
 				break;
 		} else {
 			int uncopied;
diff --git a/drivers/tty/tty_buffer.c b/drivers/tty/tty_buffer.c
index a660ab181cca..bcf2de080471 100644
--- a/drivers/tty/tty_buffer.c
+++ b/drivers/tty/tty_buffer.c
@@ -450,7 +450,7 @@ receive_buf(struct tty_struct *tty, struct tty_buffer *head, int count)
 		count = disc->ops->receive_buf2(tty, p, f, count);
 	else {
 		count = min_t(int, count, tty->receive_room);
-		if (count)
+		if (count && disc->ops->receive_buf)
 			disc->ops->receive_buf(tty, p, f, count);
 	}
 	return count;
diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c
index f435977de740..ff7f15f0f1fb 100644
--- a/drivers/tty/tty_io.c
+++ b/drivers/tty/tty_io.c
@@ -1462,13 +1462,13 @@ static int tty_reopen(struct tty_struct *tty)
 {
 	struct tty_driver *driver = tty->driver;
 
-	if (!tty->count)
-		return -EIO;
-
 	if (driver->type == TTY_DRIVER_TYPE_PTY &&
 	    driver->subtype == PTY_TYPE_MASTER)
 		return -EIO;
 
+	if (!tty->count)
+		return -EAGAIN;
+
 	if (test_bit(TTY_EXCLUSIVE, &tty->flags) && !capable(CAP_SYS_ADMIN))
 		return -EBUSY;
 
@@ -2087,7 +2087,11 @@ retry_open:
 
 	if (IS_ERR(tty)) {
 		retval = PTR_ERR(tty);
-		goto err_file;
+		if (retval != -EAGAIN || signal_pending(current))
+			goto err_file;
+		tty_free_file(filp);
+		schedule();
+		goto retry_open;
 	}
 
 	tty_add_file(tty, filp);
@@ -2654,6 +2658,28 @@ static int tiocsetd(struct tty_struct *tty, int __user *p)
 }
 
 /**
+ *	tiocgetd	-	get line discipline
+ *	@tty: tty device
+ *	@p: pointer to user data
+ *
+ *	Retrieves the line discipline id directly from the ldisc.
+ *
+ *	Locking: waits for ldisc reference (in case the line discipline
+ *		is changing or the tty is being hungup)
+ */
+
+static int tiocgetd(struct tty_struct *tty, int __user *p)
+{
+	struct tty_ldisc *ld;
+	int ret;
+
+	ld = tty_ldisc_ref_wait(tty);
+	ret = put_user(ld->ops->num, p);
+	tty_ldisc_deref(ld);
+	return ret;
+}
+
+/**
  *	send_break	-	performed time break
  *	@tty: device to break on
  *	@duration: timeout in mS
@@ -2879,7 +2905,7 @@ long tty_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 	case TIOCGSID:
 		return tiocgsid(tty, real_tty, p);
 	case TIOCGETD:
-		return put_user(tty->ldisc->ops->num, (int __user *)p);
+		return tiocgetd(tty, p);
 	case TIOCSETD:
 		return tiocsetd(tty, p);
 	case TIOCVHANGUP:
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index 26ca4f910cb0..e4c70dce3e7c 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -428,7 +428,8 @@ static void acm_read_bulk_callback(struct urb *urb)
 		set_bit(rb->index, &acm->read_urbs_free);
 		dev_dbg(&acm->data->dev, "%s - non-zero urb status: %d\n",
 							__func__, status);
-		return;
+		if ((status != -ENOENT) || (urb->actual_length == 0))
+			return;
 	}
 
 	usb_mark_last_busy(acm->dev);
@@ -1404,6 +1405,8 @@ made_compressed_probe:
 				usb_sndbulkpipe(usb_dev, epwrite->bEndpointAddress),
 				NULL, acm->writesize, acm_write_bulk, snd);
 		snd->urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+		if (quirks & SEND_ZERO_PACKET)
+			snd->urb->transfer_flags |= URB_ZERO_PACKET;
 		snd->instance = acm;
 	}
 
@@ -1861,6 +1864,10 @@ static const struct usb_device_id acm_ids[] = {
 	{ USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_ACM,
 		USB_CDC_ACM_PROTO_AT_CDMA) },
 
+	{ USB_DEVICE(0x1519, 0x0452), /* Intel 7260 modem */
+	.driver_info = SEND_ZERO_PACKET,
+	},
+
 	{ }
 };
 
diff --git a/drivers/usb/class/cdc-acm.h b/drivers/usb/class/cdc-acm.h
index dd9af38e7cda..ccfaba9ab4e4 100644
--- a/drivers/usb/class/cdc-acm.h
+++ b/drivers/usb/class/cdc-acm.h
@@ -134,3 +134,4 @@ struct acm {
 #define IGNORE_DEVICE			BIT(5)
 #define QUIRK_CONTROL_LINE_STATE	BIT(6)
 #define CLEAR_HALT_CONDITIONS		BIT(7)
+#define SEND_ZERO_PACKET		BIT(8)
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 62084335a608..a2fef797d553 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -5377,7 +5377,6 @@ static int usb_reset_and_verify_device(struct usb_device *udev)
 	}
 
 	bos = udev->bos;
-	udev->bos = NULL;
 
 	for (i = 0; i < SET_CONFIG_TRIES; ++i) {
 
@@ -5470,8 +5469,11 @@ done:
 	usb_set_usb2_hardware_lpm(udev, 1);
 	usb_unlocked_enable_lpm(udev);
 	usb_enable_ltm(udev);
-	usb_release_bos_descriptor(udev);
-	udev->bos = bos;
+	/* release the new BOS descriptor allocated  by hub_port_init() */
+	if (udev->bos != bos) {
+		usb_release_bos_descriptor(udev);
+		udev->bos = bos;
+	}
 	return 0;
 
 re_enumerate:
diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c
index 78241b5550df..1018f563465b 100644
--- a/drivers/usb/host/xhci-hub.c
+++ b/drivers/usb/host/xhci-hub.c
@@ -616,8 +616,30 @@ static u32 xhci_get_port_status(struct usb_hcd *hcd,
 		if ((raw_port_status & PORT_RESET) ||
 				!(raw_port_status & PORT_PE))
 			return 0xffffffff;
-		if (time_after_eq(jiffies,
-					bus_state->resume_done[wIndex])) {
+		/* did port event handler already start resume timing? */
+		if (!bus_state->resume_done[wIndex]) {
+			/* If not, maybe we are in a host initated resume? */
+			if (test_bit(wIndex, &bus_state->resuming_ports)) {
+				/* Host initated resume doesn't time the resume
+				 * signalling using resume_done[].
+				 * It manually sets RESUME state, sleeps 20ms
+				 * and sets U0 state. This should probably be
+				 * changed, but not right now.
+				 */
+			} else {
+				/* port resume was discovered now and here,
+				 * start resume timing
+				 */
+				unsigned long timeout = jiffies +
+					msecs_to_jiffies(USB_RESUME_TIMEOUT);
+
+				set_bit(wIndex, &bus_state->resuming_ports);
+				bus_state->resume_done[wIndex] = timeout;
+				mod_timer(&hcd->rh_timer, timeout);
+			}
+		/* Has resume been signalled for USB_RESUME_TIME yet? */
+		} else if (time_after_eq(jiffies,
+					 bus_state->resume_done[wIndex])) {
 			int time_left;
 
 			xhci_dbg(xhci, "Resume USB2 port %d\n",
@@ -658,13 +680,24 @@ static u32 xhci_get_port_status(struct usb_hcd *hcd,
 		} else {
 			/*
 			 * The resume has been signaling for less than
-			 * 20ms. Report the port status as SUSPEND,
-			 * let the usbcore check port status again
-			 * and clear resume signaling later.
+			 * USB_RESUME_TIME. Report the port status as SUSPEND,
+			 * let the usbcore check port status again and clear
+			 * resume signaling later.
 			 */
 			status |= USB_PORT_STAT_SUSPEND;
 		}
 	}
+	/*
+	 * Clear stale usb2 resume signalling variables in case port changed
+	 * state during resume signalling. For example on error
+	 */
+	if ((bus_state->resume_done[wIndex] ||
+	     test_bit(wIndex, &bus_state->resuming_ports)) &&
+	    (raw_port_status & PORT_PLS_MASK) != XDEV_U3 &&
+	    (raw_port_status & PORT_PLS_MASK) != XDEV_RESUME) {
+		bus_state->resume_done[wIndex] = 0;
+		clear_bit(wIndex, &bus_state->resuming_ports);
+	}
 	if ((raw_port_status & PORT_PLS_MASK) == XDEV_U0
 			&& (raw_port_status & PORT_POWER)
 			&& (bus_state->suspended_ports & (1 << wIndex))) {
@@ -995,6 +1028,7 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
 				if ((temp & PORT_PE) == 0)
 					goto error;
 
+				set_bit(wIndex, &bus_state->resuming_ports);
 				xhci_set_link_state(xhci, port_array, wIndex,
 							XDEV_RESUME);
 				spin_unlock_irqrestore(&xhci->lock, flags);
@@ -1002,6 +1036,7 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
 				spin_lock_irqsave(&xhci->lock, flags);
 				xhci_set_link_state(xhci, port_array, wIndex,
 							XDEV_U0);
+				clear_bit(wIndex, &bus_state->resuming_ports);
 			}
 			bus_state->port_c_suspend |= 1 << wIndex;
 
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index c47d3e480586..a22c430faea7 100644
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -28,7 +28,9 @@
 #include "xhci.h"
 #include "xhci-trace.h"
 
-#define PORT2_SSIC_CONFIG_REG2	0x883c
+#define SSIC_PORT_NUM		2
+#define SSIC_PORT_CFG2		0x880c
+#define SSIC_PORT_CFG2_OFFSET	0x30
 #define PROG_DONE		(1 << 30)
 #define SSIC_PORT_UNUSED	(1 << 31)
 
@@ -45,6 +47,7 @@
 #define PCI_DEVICE_ID_INTEL_CHERRYVIEW_XHCI		0x22b5
 #define PCI_DEVICE_ID_INTEL_SUNRISEPOINT_H_XHCI		0xa12f
 #define PCI_DEVICE_ID_INTEL_SUNRISEPOINT_LP_XHCI	0x9d2f
+#define PCI_DEVICE_ID_INTEL_BROXTON_M_XHCI		0x0aa8
 
 static const char hcd_name[] = "xhci_hcd";
 
@@ -152,7 +155,8 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
 	if (pdev->vendor == PCI_VENDOR_ID_INTEL &&
 		(pdev->device == PCI_DEVICE_ID_INTEL_SUNRISEPOINT_LP_XHCI ||
 		 pdev->device == PCI_DEVICE_ID_INTEL_SUNRISEPOINT_H_XHCI ||
-		 pdev->device == PCI_DEVICE_ID_INTEL_CHERRYVIEW_XHCI)) {
+		 pdev->device == PCI_DEVICE_ID_INTEL_CHERRYVIEW_XHCI ||
+		 pdev->device == PCI_DEVICE_ID_INTEL_BROXTON_M_XHCI)) {
 		xhci->quirks |= XHCI_PME_STUCK_QUIRK;
 	}
 	if (pdev->vendor == PCI_VENDOR_ID_ETRON &&
@@ -316,28 +320,36 @@ static void xhci_pme_quirk(struct usb_hcd *hcd, bool suspend)
 	struct pci_dev		*pdev = to_pci_dev(hcd->self.controller);
 	u32 val;
 	void __iomem *reg;
+	int i;
 
 	if (pdev->vendor == PCI_VENDOR_ID_INTEL &&
 		 pdev->device == PCI_DEVICE_ID_INTEL_CHERRYVIEW_XHCI) {
 
-		reg = (void __iomem *) xhci->cap_regs + PORT2_SSIC_CONFIG_REG2;
-
-		/* Notify SSIC that SSIC profile programming is not done */
-		val = readl(reg) & ~PROG_DONE;
-		writel(val, reg);
-
-		/* Mark SSIC port as unused(suspend) or used(resume) */
-		val = readl(reg);
-		if (suspend)
-			val |= SSIC_PORT_UNUSED;
-		else
-			val &= ~SSIC_PORT_UNUSED;
-		writel(val, reg);
-
-		/* Notify SSIC that SSIC profile programming is done */
-		val = readl(reg) | PROG_DONE;
-		writel(val, reg);
-		readl(reg);
+		for (i = 0; i < SSIC_PORT_NUM; i++) {
+			reg = (void __iomem *) xhci->cap_regs +
+					SSIC_PORT_CFG2 +
+					i * SSIC_PORT_CFG2_OFFSET;
+
+			/*
+			 * Notify SSIC that SSIC profile programming
+			 * is not done.
+			 */
+			val = readl(reg) & ~PROG_DONE;
+			writel(val, reg);
+
+			/* Mark SSIC port as unused(suspend) or used(resume) */
+			val = readl(reg);
+			if (suspend)
+				val |= SSIC_PORT_UNUSED;
+			else
+				val &= ~SSIC_PORT_UNUSED;
+			writel(val, reg);
+
+			/* Notify SSIC that SSIC profile programming is done */
+			val = readl(reg) | PROG_DONE;
+			writel(val, reg);
+			readl(reg);
+		}
 	}
 
 	reg = (void __iomem *) xhci->cap_regs + 0x80a4;
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index fe9e2d3a223c..23c712ec7541 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -1583,7 +1583,8 @@ static void handle_port_status(struct xhci_hcd *xhci,
 			 */
 			bogus_port_status = true;
 			goto cleanup;
-		} else {
+		} else if (!test_bit(faked_port_index,
+				     &bus_state->resuming_ports)) {
 			xhci_dbg(xhci, "resume HS port %d\n", port_id);
 			bus_state->resume_done[faked_port_index] = jiffies +
 				msecs_to_jiffies(USB_RESUME_TIMEOUT);
diff --git a/drivers/usb/phy/phy-msm-usb.c b/drivers/usb/phy/phy-msm-usb.c
index c58c3c0dbe35..260e510578e7 100644
--- a/drivers/usb/phy/phy-msm-usb.c
+++ b/drivers/usb/phy/phy-msm-usb.c
@@ -1599,6 +1599,8 @@ static int msm_otg_read_dt(struct platform_device *pdev, struct msm_otg *motg)
 						&motg->id.nb);
 		if (ret < 0) {
 			dev_err(&pdev->dev, "register ID notifier failed\n");
+			extcon_unregister_notifier(motg->vbus.extcon,
+						   EXTCON_USB, &motg->vbus.nb);
 			return ret;
 		}
 
@@ -1660,15 +1662,6 @@ static int msm_otg_probe(struct platform_device *pdev)
 	if (!motg)
 		return -ENOMEM;
 
-	pdata = dev_get_platdata(&pdev->dev);
-	if (!pdata) {
-		if (!np)
-			return -ENXIO;
-		ret = msm_otg_read_dt(pdev, motg);
-		if (ret)
-			return ret;
-	}
-
 	motg->phy.otg = devm_kzalloc(&pdev->dev, sizeof(struct usb_otg),
 				     GFP_KERNEL);
 	if (!motg->phy.otg)
@@ -1710,6 +1703,15 @@ static int msm_otg_probe(struct platform_device *pdev)
 	if (!motg->regs)
 		return -ENOMEM;
 
+	pdata = dev_get_platdata(&pdev->dev);
+	if (!pdata) {
+		if (!np)
+			return -ENXIO;
+		ret = msm_otg_read_dt(pdev, motg);
+		if (ret)
+			return ret;
+	}
+
 	/*
 	 * NOTE: The PHYs can be multiplexed between the chipidea controller
 	 * and the dwc3 controller, using a single bit. It is important that
@@ -1717,8 +1719,10 @@ static int msm_otg_probe(struct platform_device *pdev)
 	 */
 	if (motg->phy_number) {
 		phy_select = devm_ioremap_nocache(&pdev->dev, USB2_PHY_SEL, 4);
-		if (!phy_select)
-			return -ENOMEM;
+		if (!phy_select) {
+			ret = -ENOMEM;
+			goto unregister_extcon;
+		}
 		/* Enable second PHY with the OTG port */
 		writel(0x1, phy_select);
 	}
@@ -1728,7 +1732,8 @@ static int msm_otg_probe(struct platform_device *pdev)
 	motg->irq = platform_get_irq(pdev, 0);
 	if (motg->irq < 0) {
 		dev_err(&pdev->dev, "platform_get_irq failed\n");
-		return motg->irq;
+		ret = motg->irq;
+		goto unregister_extcon;
 	}
 
 	regs[0].supply = "vddcx";
@@ -1737,7 +1742,7 @@ static int msm_otg_probe(struct platform_device *pdev)
 
 	ret = devm_regulator_bulk_get(motg->phy.dev, ARRAY_SIZE(regs), regs);
 	if (ret)
-		return ret;
+		goto unregister_extcon;
 
 	motg->vddcx = regs[0].consumer;
 	motg->v3p3  = regs[1].consumer;
@@ -1834,6 +1839,12 @@ disable_clks:
 	clk_disable_unprepare(motg->clk);
 	if (!IS_ERR(motg->core_clk))
 		clk_disable_unprepare(motg->core_clk);
+unregister_extcon:
+	extcon_unregister_notifier(motg->id.extcon,
+				   EXTCON_USB_HOST, &motg->id.nb);
+	extcon_unregister_notifier(motg->vbus.extcon,
+				   EXTCON_USB, &motg->vbus.nb);
+
 	return ret;
 }
 
diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c
index 59b2126b21a3..1dd9919081f8 100644
--- a/drivers/usb/serial/cp210x.c
+++ b/drivers/usb/serial/cp210x.c
@@ -98,6 +98,7 @@ static const struct usb_device_id id_table[] = {
 	{ USB_DEVICE(0x10C4, 0x81AC) }, /* MSD Dash Hawk */
 	{ USB_DEVICE(0x10C4, 0x81AD) }, /* INSYS USB Modem */
 	{ USB_DEVICE(0x10C4, 0x81C8) }, /* Lipowsky Industrie Elektronik GmbH, Baby-JTAG */
+	{ USB_DEVICE(0x10C4, 0x81D7) }, /* IAI Corp. RCB-CV-USB USB to RS485 Adaptor */
 	{ USB_DEVICE(0x10C4, 0x81E2) }, /* Lipowsky Industrie Elektronik GmbH, Baby-LIN */
 	{ USB_DEVICE(0x10C4, 0x81E7) }, /* Aerocomm Radio */
 	{ USB_DEVICE(0x10C4, 0x81E8) }, /* Zephyr Bioharness */
diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index a5a0376bbd48..8c660ae401d8 100644
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -824,6 +824,7 @@ static const struct usb_device_id id_table_combined[] = {
 	{ USB_DEVICE(FTDI_VID, FTDI_TURTELIZER_PID),
 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
 	{ USB_DEVICE(RATOC_VENDOR_ID, RATOC_PRODUCT_ID_USB60F) },
+	{ USB_DEVICE(RATOC_VENDOR_ID, RATOC_PRODUCT_ID_SCU18) },
 	{ USB_DEVICE(FTDI_VID, FTDI_REU_TINY_PID) },
 
 	/* Papouch devices based on FTDI chip */
diff --git a/drivers/usb/serial/ftdi_sio_ids.h b/drivers/usb/serial/ftdi_sio_ids.h
index 67c6d4469730..a84df2513994 100644
--- a/drivers/usb/serial/ftdi_sio_ids.h
+++ b/drivers/usb/serial/ftdi_sio_ids.h
@@ -615,6 +615,7 @@
  */
 #define RATOC_VENDOR_ID		0x0584
 #define RATOC_PRODUCT_ID_USB60F	0xb020
+#define RATOC_PRODUCT_ID_SCU18	0xb03a
 
 /*
  * Infineon Technologies
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index e945b5195258..35622fba4305 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -271,6 +271,8 @@ static void option_instat_callback(struct urb *urb);
 #define TELIT_PRODUCT_CC864_SINGLE		0x1006
 #define TELIT_PRODUCT_DE910_DUAL		0x1010
 #define TELIT_PRODUCT_UE910_V2			0x1012
+#define TELIT_PRODUCT_LE922_USBCFG0		0x1042
+#define TELIT_PRODUCT_LE922_USBCFG3		0x1043
 #define TELIT_PRODUCT_LE920			0x1200
 #define TELIT_PRODUCT_LE910			0x1201
 
@@ -623,6 +625,16 @@ static const struct option_blacklist_info sierra_mc73xx_blacklist = {
 	.reserved = BIT(8) | BIT(10) | BIT(11),
 };
 
+static const struct option_blacklist_info telit_le922_blacklist_usbcfg0 = {
+	.sendsetup = BIT(2),
+	.reserved = BIT(0) | BIT(1) | BIT(3),
+};
+
+static const struct option_blacklist_info telit_le922_blacklist_usbcfg3 = {
+	.sendsetup = BIT(0),
+	.reserved = BIT(1) | BIT(2) | BIT(3),
+};
+
 static const struct usb_device_id option_ids[] = {
 	{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COLT) },
 	{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA) },
@@ -1172,6 +1184,10 @@ static const struct usb_device_id option_ids[] = {
 	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_CC864_SINGLE) },
 	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_DE910_DUAL) },
 	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_UE910_V2) },
+	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE922_USBCFG0),
+		.driver_info = (kernel_ulong_t)&telit_le922_blacklist_usbcfg0 },
+	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE922_USBCFG3),
+		.driver_info = (kernel_ulong_t)&telit_le922_blacklist_usbcfg3 },
 	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE910),
 		.driver_info = (kernel_ulong_t)&telit_le910_blacklist },
 	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE920),
@@ -1691,7 +1707,7 @@ static const struct usb_device_id option_ids[] = {
 	{ USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_EU3_P) },
 	{ USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_PH8),
 		.driver_info = (kernel_ulong_t)&net_intf4_blacklist },
-	{ USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_AHXX) },
+	{ USB_DEVICE_INTERFACE_CLASS(CINTERION_VENDOR_ID, CINTERION_PRODUCT_AHXX, 0xff) },
 	{ USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_PLXX),
 		.driver_info = (kernel_ulong_t)&net_intf4_blacklist },
 	{ USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_HC28_MDM) }, 
diff --git a/drivers/usb/serial/visor.c b/drivers/usb/serial/visor.c
index 60afb39eb73c..337a0be89fcf 100644
--- a/drivers/usb/serial/visor.c
+++ b/drivers/usb/serial/visor.c
@@ -544,6 +544,11 @@ static int treo_attach(struct usb_serial *serial)
 		(serial->num_interrupt_in == 0))
 		return 0;
 
+	if (serial->num_bulk_in < 2 || serial->num_interrupt_in < 2) {
+		dev_err(&serial->interface->dev, "missing endpoints\n");
+		return -ENODEV;
+	}
+
 	/*
 	* It appears that Treos and Kyoceras want to use the
 	* 1st bulk in endpoint to communicate with the 2nd bulk out endpoint,
@@ -597,8 +602,10 @@ static int clie_5_attach(struct usb_serial *serial)
 	 */
 
 	/* some sanity check */
-	if (serial->num_ports < 2)
-		return -1;
+	if (serial->num_bulk_out < 2) {
+		dev_err(&serial->interface->dev, "missing bulk out endpoints\n");
+		return -ENODEV;
+	}
 
 	/* port 0 now uses the modified endpoint Address */
 	port = serial->port[0];
diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index 6b659967898e..e6572a665b2e 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -759,16 +759,16 @@ static int load_elf_binary(struct linux_binprm *bprm)
 			 */
 			would_dump(bprm, interpreter);
 
-			retval = kernel_read(interpreter, 0, bprm->buf,
-					     BINPRM_BUF_SIZE);
-			if (retval != BINPRM_BUF_SIZE) {
+			/* Get the exec headers */
+			retval = kernel_read(interpreter, 0,
+					     (void *)&loc->interp_elf_ex,
+					     sizeof(loc->interp_elf_ex));
+			if (retval != sizeof(loc->interp_elf_ex)) {
 				if (retval >= 0)
 					retval = -EIO;
 				goto out_free_dentry;
 			}
 
-			/* Get the exec headers */
-			loc->interp_elf_ex = *((struct elfhdr *)bprm->buf);
 			break;
 		}
 		elf_ppnt++;
diff --git a/fs/cachefiles/rdwr.c b/fs/cachefiles/rdwr.c
index 3cbb0e834694..3ce646792c7e 100644
--- a/fs/cachefiles/rdwr.c
+++ b/fs/cachefiles/rdwr.c
@@ -885,7 +885,7 @@ int cachefiles_write_page(struct fscache_storage *op, struct page *page)
 	loff_t pos, eof;
 	size_t len;
 	void *data;
-	int ret;
+	int ret = -ENOBUFS;
 
 	ASSERT(op != NULL);
 	ASSERT(page != NULL);
@@ -905,6 +905,15 @@ int cachefiles_write_page(struct fscache_storage *op, struct page *page)
 	cache = container_of(object->fscache.cache,
 			     struct cachefiles_cache, cache);
 
+	pos = (loff_t)page->index << PAGE_SHIFT;
+
+	/* We mustn't write more data than we have, so we have to beware of a
+	 * partial page at EOF.
+	 */
+	eof = object->fscache.store_limit_l;
+	if (pos >= eof)
+		goto error;
+
 	/* write the page to the backing filesystem and let it store it in its
 	 * own time */
 	path.mnt = cache->mnt;
@@ -912,40 +921,38 @@ int cachefiles_write_page(struct fscache_storage *op, struct page *page)
 	file = dentry_open(&path, O_RDWR | O_LARGEFILE, cache->cache_cred);
 	if (IS_ERR(file)) {
 		ret = PTR_ERR(file);
-	} else {
-		pos = (loff_t) page->index << PAGE_SHIFT;
-
-		/* we mustn't write more data than we have, so we have
-		 * to beware of a partial page at EOF */
-		eof = object->fscache.store_limit_l;
-		len = PAGE_SIZE;
-		if (eof & ~PAGE_MASK) {
-			ASSERTCMP(pos, <, eof);
-			if (eof - pos < PAGE_SIZE) {
-				_debug("cut short %llx to %llx",
-				       pos, eof);
-				len = eof - pos;
-				ASSERTCMP(pos + len, ==, eof);
-			}
-		}
-
-		data = kmap(page);
-		ret = __kernel_write(file, data, len, &pos);
-		kunmap(page);
-		if (ret != len)
-			ret = -EIO;
-		fput(file);
+		goto error_2;
 	}
 
-	if (ret < 0) {
-		if (ret == -EIO)
-			cachefiles_io_error_obj(
-				object, "Write page to backing file failed");
-		ret = -ENOBUFS;
+	len = PAGE_SIZE;
+	if (eof & ~PAGE_MASK) {
+		if (eof - pos < PAGE_SIZE) {
+			_debug("cut short %llx to %llx",
+			       pos, eof);
+			len = eof - pos;
+			ASSERTCMP(pos + len, ==, eof);
+		}
 	}
 
-	_leave(" = %d", ret);
-	return ret;
+	data = kmap(page);
+	ret = __kernel_write(file, data, len, &pos);
+	kunmap(page);
+	fput(file);
+	if (ret != len)
+		goto error_eio;
+
+	_leave(" = 0");
+	return 0;
+
+error_eio:
+	ret = -EIO;
+error_2:
+	if (ret == -EIO)
+		cachefiles_io_error_obj(object,
+					"Write page to backing file failed");
+error:
+	_leave(" = -ENOBUFS [%d]", ret);
+	return -ENOBUFS;
 }
 
 /*
diff --git a/fs/ext2/super.c b/fs/ext2/super.c
index 900e19cf9ef6..2597b0663bf2 100644
--- a/fs/ext2/super.c
+++ b/fs/ext2/super.c
@@ -566,6 +566,8 @@ static int parse_options(char *options, struct super_block *sb)
 			/* Fall through */
 		case Opt_dax:
 #ifdef CONFIG_FS_DAX
+			ext2_msg(sb, KERN_WARNING,
+		"DAX enabled. Warning: EXPERIMENTAL, use at your own risk");
 			set_opt(sbi->s_mount_opt, DAX);
 #else
 			ext2_msg(sb, KERN_INFO, "dax option not supported");
diff --git a/fs/ext4/crypto.c b/fs/ext4/crypto.c
index 2fab243a4c9e..7d6cda4738a4 100644
--- a/fs/ext4/crypto.c
+++ b/fs/ext4/crypto.c
@@ -408,7 +408,7 @@ int ext4_encrypted_zeroout(struct inode *inode, struct ext4_extent *ex)
 	struct ext4_crypto_ctx	*ctx;
 	struct page		*ciphertext_page = NULL;
 	struct bio		*bio;
-	ext4_lblk_t		lblk = ex->ee_block;
+	ext4_lblk_t		lblk = le32_to_cpu(ex->ee_block);
 	ext4_fsblk_t		pblk = ext4_ext_pblock(ex);
 	unsigned int		len = ext4_ext_get_actual_len(ex);
 	int			ret, err = 0;
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index fd1f28be5296..eb897089fbd0 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -26,6 +26,7 @@
 #include <linux/seqlock.h>
 #include <linux/mutex.h>
 #include <linux/timer.h>
+#include <linux/version.h>
 #include <linux/wait.h>
 #include <linux/blockgroup_lock.h>
 #include <linux/percpu_counter.h>
@@ -723,19 +724,55 @@ struct move_extent {
 	<= (EXT4_GOOD_OLD_INODE_SIZE +			\
 	    (einode)->i_extra_isize))			\
 
+/*
+ * We use an encoding that preserves the times for extra epoch "00":
+ *
+ * extra  msb of                         adjust for signed
+ * epoch  32-bit                         32-bit tv_sec to
+ * bits   time    decoded 64-bit tv_sec  64-bit tv_sec      valid time range
+ * 0 0    1    -0x80000000..-0x00000001  0x000000000 1901-12-13..1969-12-31
+ * 0 0    0    0x000000000..0x07fffffff  0x000000000 1970-01-01..2038-01-19
+ * 0 1    1    0x080000000..0x0ffffffff  0x100000000 2038-01-19..2106-02-07
+ * 0 1    0    0x100000000..0x17fffffff  0x100000000 2106-02-07..2174-02-25
+ * 1 0    1    0x180000000..0x1ffffffff  0x200000000 2174-02-25..2242-03-16
+ * 1 0    0    0x200000000..0x27fffffff  0x200000000 2242-03-16..2310-04-04
+ * 1 1    1    0x280000000..0x2ffffffff  0x300000000 2310-04-04..2378-04-22
+ * 1 1    0    0x300000000..0x37fffffff  0x300000000 2378-04-22..2446-05-10
+ *
+ * Note that previous versions of the kernel on 64-bit systems would
+ * incorrectly use extra epoch bits 1,1 for dates between 1901 and
+ * 1970.  e2fsck will correct this, assuming that it is run on the
+ * affected filesystem before 2242.
+ */
+
 static inline __le32 ext4_encode_extra_time(struct timespec *time)
 {
-       return cpu_to_le32((sizeof(time->tv_sec) > 4 ?
-			   (time->tv_sec >> 32) & EXT4_EPOCH_MASK : 0) |
-                          ((time->tv_nsec << EXT4_EPOCH_BITS) & EXT4_NSEC_MASK));
+	u32 extra = sizeof(time->tv_sec) > 4 ?
+		((time->tv_sec - (s32)time->tv_sec) >> 32) & EXT4_EPOCH_MASK : 0;
+	return cpu_to_le32(extra | (time->tv_nsec << EXT4_EPOCH_BITS));
 }
 
 static inline void ext4_decode_extra_time(struct timespec *time, __le32 extra)
 {
-       if (sizeof(time->tv_sec) > 4)
-	       time->tv_sec |= (__u64)(le32_to_cpu(extra) & EXT4_EPOCH_MASK)
-			       << 32;
-       time->tv_nsec = (le32_to_cpu(extra) & EXT4_NSEC_MASK) >> EXT4_EPOCH_BITS;
+	if (unlikely(sizeof(time->tv_sec) > 4 &&
+			(extra & cpu_to_le32(EXT4_EPOCH_MASK)))) {
+#if LINUX_VERSION_CODE < KERNEL_VERSION(4,20,0)
+		/* Handle legacy encoding of pre-1970 dates with epoch
+		 * bits 1,1.  We assume that by kernel version 4.20,
+		 * everyone will have run fsck over the affected
+		 * filesystems to correct the problem.  (This
+		 * backwards compatibility may be removed before this
+		 * time, at the discretion of the ext4 developers.)
+		 */
+		u64 extra_bits = le32_to_cpu(extra) & EXT4_EPOCH_MASK;
+		if (extra_bits == 3 && ((time->tv_sec) & 0x80000000) != 0)
+			extra_bits = 0;
+		time->tv_sec += extra_bits << 32;
+#else
+		time->tv_sec += (u64)(le32_to_cpu(extra) & EXT4_EPOCH_MASK) << 32;
+#endif
+	}
+	time->tv_nsec = (le32_to_cpu(extra) & EXT4_NSEC_MASK) >> EXT4_EPOCH_BITS;
 }
 
 #define EXT4_INODE_SET_XTIME(xtime, inode, raw_inode)			       \
diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c
index cf0c472047e3..c7c53fd46a41 100644
--- a/fs/ext4/resize.c
+++ b/fs/ext4/resize.c
@@ -1040,7 +1040,7 @@ exit_free:
  * do not copy the full number of backups at this time.  The resize
  * which changed s_groups_count will backup again.
  */
-static void update_backups(struct super_block *sb, int blk_off, char *data,
+static void update_backups(struct super_block *sb, sector_t blk_off, char *data,
 			   int size, int meta_bg)
 {
 	struct ext4_sb_info *sbi = EXT4_SB(sb);
@@ -1065,7 +1065,7 @@ static void update_backups(struct super_block *sb, int blk_off, char *data,
 		group = ext4_list_backups(sb, &three, &five, &seven);
 		last = sbi->s_groups_count;
 	} else {
-		group = ext4_meta_bg_first_group(sb, group) + 1;
+		group = ext4_get_group_number(sb, blk_off) + 1;
 		last = (ext4_group_t)(group + EXT4_DESC_PER_BLOCK(sb) - 2);
 	}
 
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index df84bd256c9f..7683892d855c 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -1664,8 +1664,12 @@ static int handle_mount_opt(struct super_block *sb, char *opt, int token,
 		}
 		sbi->s_jquota_fmt = m->mount_opt;
 #endif
-#ifndef CONFIG_FS_DAX
 	} else if (token == Opt_dax) {
+#ifdef CONFIG_FS_DAX
+		ext4_msg(sb, KERN_WARNING,
+		"DAX enabled. Warning: EXPERIMENTAL, use at your own risk");
+			sbi->s_mount_opt |= m->mount_opt;
+#else
 		ext4_msg(sb, KERN_INFO, "dax option not supported");
 		return -1;
 #endif
diff --git a/fs/ext4/symlink.c b/fs/ext4/symlink.c
index c677f2c1044b..3627fd7cf4a0 100644
--- a/fs/ext4/symlink.c
+++ b/fs/ext4/symlink.c
@@ -52,7 +52,7 @@ static const char *ext4_encrypted_follow_link(struct dentry *dentry, void **cook
 	/* Symlink is encrypted */
 	sd = (struct ext4_encrypted_symlink_data *)caddr;
 	cstr.name = sd->encrypted_path;
-	cstr.len  = le32_to_cpu(sd->len);
+	cstr.len  = le16_to_cpu(sd->len);
 	if ((cstr.len +
 	     sizeof(struct ext4_encrypted_symlink_data) - 1) >
 	    max_size) {
diff --git a/fs/f2fs/dir.c b/fs/f2fs/dir.c
index 8f15fc134040..6726c4a5efa2 100644
--- a/fs/f2fs/dir.c
+++ b/fs/f2fs/dir.c
@@ -787,7 +787,6 @@ bool f2fs_fill_dentries(struct dir_context *ctx, struct f2fs_dentry_ptr *d,
 		else
 			d_type = DT_UNKNOWN;
 
-		/* encrypted case */
 		de_name.name = d->filename[bit_pos];
 		de_name.len = le16_to_cpu(de->name_len);
 
@@ -795,12 +794,20 @@ bool f2fs_fill_dentries(struct dir_context *ctx, struct f2fs_dentry_ptr *d,
 			int save_len = fstr->len;
 			int ret;
 
+			de_name.name = kmalloc(de_name.len, GFP_NOFS);
+			if (!de_name.name)
+				return false;
+
+			memcpy(de_name.name, d->filename[bit_pos], de_name.len);
+
 			ret = f2fs_fname_disk_to_usr(d->inode, &de->hash_code,
 							&de_name, fstr);
-			de_name = *fstr;
-			fstr->len = save_len;
+			kfree(de_name.name);
 			if (ret < 0)
 				return true;
+
+			de_name = *fstr;
+			fstr->len = save_len;
 		}
 
 		if (!dir_emit(ctx, de_name.name, de_name.len,
diff --git a/fs/f2fs/namei.c b/fs/f2fs/namei.c
index a680bf38e4f0..dfa01c88b34b 100644
--- a/fs/f2fs/namei.c
+++ b/fs/f2fs/namei.c
@@ -947,8 +947,13 @@ static const char *f2fs_encrypted_follow_link(struct dentry *dentry, void **cook
 
 	/* Symlink is encrypted */
 	sd = (struct f2fs_encrypted_symlink_data *)caddr;
-	cstr.name = sd->encrypted_path;
 	cstr.len = le16_to_cpu(sd->len);
+	cstr.name = kmalloc(cstr.len, GFP_NOFS);
+	if (!cstr.name) {
+		res = -ENOMEM;
+		goto errout;
+	}
+	memcpy(cstr.name, sd->encrypted_path, cstr.len);
 
 	/* this is broken symlink case */
 	if (cstr.name[0] == 0 && cstr.len == 0) {
@@ -970,6 +975,8 @@ static const char *f2fs_encrypted_follow_link(struct dentry *dentry, void **cook
 	if (res < 0)
 		goto errout;
 
+	kfree(cstr.name);
+
 	paddr = pstr.name;
 
 	/* Null-terminate the name */
@@ -979,6 +986,7 @@ static const char *f2fs_encrypted_follow_link(struct dentry *dentry, void **cook
 	page_cache_release(cpage);
 	return *cookie = paddr;
 errout:
+	kfree(cstr.name);
 	f2fs_fname_crypto_free_buffer(&pstr);
 	kunmap(cpage);
 	page_cache_release(cpage);
diff --git a/fs/fat/dir.c b/fs/fat/dir.c
index 4afc4d9d2e41..8b2127ffb226 100644
--- a/fs/fat/dir.c
+++ b/fs/fat/dir.c
@@ -610,9 +610,9 @@ parse_record:
 		int status = fat_parse_long(inode, &cpos, &bh, &de,
 					    &unicode, &nr_slots);
 		if (status < 0) {
-			ctx->pos = cpos;
+			bh = NULL;
 			ret = status;
-			goto out;
+			goto end_of_dir;
 		} else if (status == PARSE_INVALID)
 			goto record_end;
 		else if (status == PARSE_NOT_LONGNAME)
@@ -654,8 +654,9 @@ parse_record:
 	fill_len = short_len;
 
 start_filldir:
-	if (!fake_offset)
-		ctx->pos = cpos - (nr_slots + 1) * sizeof(struct msdos_dir_entry);
+	ctx->pos = cpos - (nr_slots + 1) * sizeof(struct msdos_dir_entry);
+	if (fake_offset && ctx->pos < 2)
+		ctx->pos = 2;
 
 	if (!memcmp(de->name, MSDOS_DOT, MSDOS_NAME)) {
 		if (!dir_emit_dot(file, ctx))
@@ -681,14 +682,19 @@ record_end:
 	fake_offset = 0;
 	ctx->pos = cpos;
 	goto get_new;
+
 end_of_dir:
-	ctx->pos = cpos;
+	if (fake_offset && cpos < 2)
+		ctx->pos = 2;
+	else
+		ctx->pos = cpos;
 fill_failed:
 	brelse(bh);
 	if (unicode)
 		__putname(unicode);
 out:
 	mutex_unlock(&sbi->s_lock);
+
 	return ret;
 }
 
diff --git a/fs/fscache/netfs.c b/fs/fscache/netfs.c
index 6d941f56faf4..9b28649df3a1 100644
--- a/fs/fscache/netfs.c
+++ b/fs/fscache/netfs.c
@@ -22,6 +22,7 @@ static LIST_HEAD(fscache_netfs_list);
 int __fscache_register_netfs(struct fscache_netfs *netfs)
 {
 	struct fscache_netfs *ptr;
+	struct fscache_cookie *cookie;
 	int ret;
 
 	_enter("{%s}", netfs->name);
@@ -29,29 +30,25 @@ int __fscache_register_netfs(struct fscache_netfs *netfs)
 	INIT_LIST_HEAD(&netfs->link);
 
 	/* allocate a cookie for the primary index */
-	netfs->primary_index =
-		kmem_cache_zalloc(fscache_cookie_jar, GFP_KERNEL);
+	cookie = kmem_cache_zalloc(fscache_cookie_jar, GFP_KERNEL);
 
-	if (!netfs->primary_index) {
+	if (!cookie) {
 		_leave(" = -ENOMEM");
 		return -ENOMEM;
 	}
 
 	/* initialise the primary index cookie */
-	atomic_set(&netfs->primary_index->usage, 1);
-	atomic_set(&netfs->primary_index->n_children, 0);
-	atomic_set(&netfs->primary_index->n_active, 1);
+	atomic_set(&cookie->usage, 1);
+	atomic_set(&cookie->n_children, 0);
+	atomic_set(&cookie->n_active, 1);
 
-	netfs->primary_index->def		= &fscache_fsdef_netfs_def;
-	netfs->primary_index->parent		= &fscache_fsdef_index;
-	netfs->primary_index->netfs_data	= netfs;
-	netfs->primary_index->flags		= 1 << FSCACHE_COOKIE_ENABLED;
+	cookie->def		= &fscache_fsdef_netfs_def;
+	cookie->parent		= &fscache_fsdef_index;
+	cookie->netfs_data	= netfs;
+	cookie->flags		= 1 << FSCACHE_COOKIE_ENABLED;
 
-	atomic_inc(&netfs->primary_index->parent->usage);
-	atomic_inc(&netfs->primary_index->parent->n_children);
-
-	spin_lock_init(&netfs->primary_index->lock);
-	INIT_HLIST_HEAD(&netfs->primary_index->backing_objects);
+	spin_lock_init(&cookie->lock);
+	INIT_HLIST_HEAD(&cookie->backing_objects);
 
 	/* check the netfs type is not already present */
 	down_write(&fscache_addremove_sem);
@@ -62,6 +59,10 @@ int __fscache_register_netfs(struct fscache_netfs *netfs)
 			goto already_registered;
 	}
 
+	atomic_inc(&cookie->parent->usage);
+	atomic_inc(&cookie->parent->n_children);
+
+	netfs->primary_index = cookie;
 	list_add(&netfs->link, &fscache_netfs_list);
 	ret = 0;
 
@@ -70,11 +71,8 @@ int __fscache_register_netfs(struct fscache_netfs *netfs)
 already_registered:
 	up_write(&fscache_addremove_sem);
 
-	if (ret < 0) {
-		netfs->primary_index->parent = NULL;
-		__fscache_cookie_put(netfs->primary_index);
-		netfs->primary_index = NULL;
-	}
+	if (ret < 0)
+		kmem_cache_free(fscache_cookie_jar, cookie);
 
 	_leave(" = %d", ret);
 	return ret;
diff --git a/fs/fscache/page.c b/fs/fscache/page.c
index 483bbc613bf0..ca916af5a7c4 100644
--- a/fs/fscache/page.c
+++ b/fs/fscache/page.c
@@ -816,7 +816,7 @@ static void fscache_write_op(struct fscache_operation *_op)
 		goto superseded;
 	page = results[0];
 	_debug("gang %d [%lx]", n, page->index);
-	if (page->index > op->store_limit) {
+	if (page->index >= op->store_limit) {
 		fscache_stat(&fscache_n_store_pages_over_limit);
 		goto superseded;
 	}
diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
index 316adb968b65..de4bdfac0cec 100644
--- a/fs/hugetlbfs/inode.c
+++ b/fs/hugetlbfs/inode.c
@@ -332,12 +332,17 @@ static void remove_huge_page(struct page *page)
  * truncation is indicated by end of range being LLONG_MAX
  *	In this case, we first scan the range and release found pages.
  *	After releasing pages, hugetlb_unreserve_pages cleans up region/reserv
- *	maps and global counts.
+ *	maps and global counts.  Page faults can not race with truncation
+ *	in this routine.  hugetlb_no_page() prevents page faults in the
+ *	truncated range.  It checks i_size before allocation, and again after
+ *	with the page table lock for the page held.  The same lock must be
+ *	acquired to unmap a page.
  * hole punch is indicated if end is not LLONG_MAX
  *	In the hole punch case we scan the range and release found pages.
  *	Only when releasing a page is the associated region/reserv map
  *	deleted.  The region/reserv map for ranges without associated
- *	pages are not modified.
+ *	pages are not modified.  Page faults can race with hole punch.
+ *	This is indicated if we find a mapped page.
  * Note: If the passed end of range value is beyond the end of file, but
  * not LLONG_MAX this routine still performs a hole punch operation.
  */
@@ -361,46 +366,37 @@ static void remove_inode_hugepages(struct inode *inode, loff_t lstart,
 	next = start;
 	while (next < end) {
 		/*
-		 * Make sure to never grab more pages that we
-		 * might possibly need.
+		 * Don't grab more pages than the number left in the range.
 		 */
 		if (end - next < lookup_nr)
 			lookup_nr = end - next;
 
 		/*
-		 * This pagevec_lookup() may return pages past 'end',
-		 * so we must check for page->index > end.
+		 * When no more pages are found, we are done.
 		 */
-		if (!pagevec_lookup(&pvec, mapping, next, lookup_nr)) {
-			if (next == start)
-				break;
-			next = start;
-			continue;
-		}
+		if (!pagevec_lookup(&pvec, mapping, next, lookup_nr))
+			break;
 
 		for (i = 0; i < pagevec_count(&pvec); ++i) {
 			struct page *page = pvec.pages[i];
 			u32 hash;
 
+			/*
+			 * The page (index) could be beyond end.  This is
+			 * only possible in the punch hole case as end is
+			 * max page offset in the truncate case.
+			 */
+			next = page->index;
+			if (next >= end)
+				break;
+
 			hash = hugetlb_fault_mutex_hash(h, current->mm,
 							&pseudo_vma,
 							mapping, next, 0);
 			mutex_lock(&hugetlb_fault_mutex_table[hash]);
 
 			lock_page(page);
-			if (page->index >= end) {
-				unlock_page(page);
-				mutex_unlock(&hugetlb_fault_mutex_table[hash]);
-				next = end;	/* we are done */
-				break;
-			}
-
-			/*
-			 * If page is mapped, it was faulted in after being
-			 * unmapped.  Do nothing in this race case.  In the
-			 * normal case page is not mapped.
-			 */
-			if (!page_mapped(page)) {
+			if (likely(!page_mapped(page))) {
 				bool rsv_on_error = !PagePrivate(page);
 				/*
 				 * We must free the huge page and remove
@@ -421,17 +417,23 @@ static void remove_inode_hugepages(struct inode *inode, loff_t lstart,
 						hugetlb_fix_reserve_counts(
 							inode, rsv_on_error);
 				}
+			} else {
+				/*
+				 * If page is mapped, it was faulted in after
+				 * being unmapped.  It indicates a race between
+				 * hole punch and page fault.  Do nothing in
+				 * this case.  Getting here in a truncate
+				 * operation is a bug.
+				 */
+				BUG_ON(truncate_op);
 			}
 
-			if (page->index > next)
-				next = page->index;
-
-			++next;
 			unlock_page(page);
-
 			mutex_unlock(&hugetlb_fault_mutex_table[hash]);
 		}
+		++next;
 		huge_pagevec_release(&pvec);
+		cond_resched();
 	}
 
 	if (truncate_op)
@@ -647,9 +649,6 @@ static long hugetlbfs_fallocate(struct file *file, int mode, loff_t offset,
 	if (!(mode & FALLOC_FL_KEEP_SIZE) && offset + len > inode->i_size)
 		i_size_write(inode, offset + len);
 	inode->i_ctime = CURRENT_TIME;
-	spin_lock(&inode->i_lock);
-	inode->i_private = NULL;
-	spin_unlock(&inode->i_lock);
 out:
 	mutex_unlock(&inode->i_mutex);
 	return error;
diff --git a/fs/jbd2/checkpoint.c b/fs/jbd2/checkpoint.c
index 8c44654ce274..684996c8a3a4 100644
--- a/fs/jbd2/checkpoint.c
+++ b/fs/jbd2/checkpoint.c
@@ -427,7 +427,6 @@ static int journal_clean_one_cp_list(struct journal_head *jh, bool destroy)
 	struct journal_head *last_jh;
 	struct journal_head *next_jh = jh;
 	int ret;
-	int freed = 0;
 
 	if (!jh)
 		return 0;
@@ -441,10 +440,9 @@ static int journal_clean_one_cp_list(struct journal_head *jh, bool destroy)
 		else
 			ret = __jbd2_journal_remove_checkpoint(jh) + 1;
 		if (!ret)
-			return freed;
+			return 0;
 		if (ret == 2)
 			return 1;
-		freed = 1;
 		/*
 		 * This function only frees up some memory
 		 * if possible so we dont have an obligation
@@ -452,10 +450,10 @@ static int journal_clean_one_cp_list(struct journal_head *jh, bool destroy)
 		 * requested:
 		 */
 		if (need_resched())
-			return freed;
+			return 0;
 	} while (jh != last_jh);
 
-	return freed;
+	return 0;
 }
 
 /*
diff --git a/fs/jbd2/transaction.c b/fs/jbd2/transaction.c
index 6b8338ec2464..1498ad9f731a 100644
--- a/fs/jbd2/transaction.c
+++ b/fs/jbd2/transaction.c
@@ -1009,7 +1009,8 @@ out:
 }
 
 /* Fast check whether buffer is already attached to the required transaction */
-static bool jbd2_write_access_granted(handle_t *handle, struct buffer_head *bh)
+static bool jbd2_write_access_granted(handle_t *handle, struct buffer_head *bh,
+							bool undo)
 {
 	struct journal_head *jh;
 	bool ret = false;
@@ -1036,6 +1037,9 @@ static bool jbd2_write_access_granted(handle_t *handle, struct buffer_head *bh)
 	jh = READ_ONCE(bh->b_private);
 	if (!jh)
 		goto out;
+	/* For undo access buffer must have data copied */
+	if (undo && !jh->b_committed_data)
+		goto out;
 	if (jh->b_transaction != handle->h_transaction &&
 	    jh->b_next_transaction != handle->h_transaction)
 		goto out;
@@ -1073,7 +1077,7 @@ int jbd2_journal_get_write_access(handle_t *handle, struct buffer_head *bh)
 	struct journal_head *jh;
 	int rc;
 
-	if (jbd2_write_access_granted(handle, bh))
+	if (jbd2_write_access_granted(handle, bh, false))
 		return 0;
 
 	jh = jbd2_journal_add_journal_head(bh);
@@ -1210,7 +1214,7 @@ int jbd2_journal_get_undo_access(handle_t *handle, struct buffer_head *bh)
 	char *committed_data = NULL;
 
 	JBUFFER_TRACE(jh, "entry");
-	if (jbd2_write_access_granted(handle, bh))
+	if (jbd2_write_access_granted(handle, bh, true))
 		return 0;
 
 	jh = jbd2_journal_add_journal_head(bh);
@@ -2152,6 +2156,7 @@ static int journal_unmap_buffer(journal_t *journal, struct buffer_head *bh,
 
 		if (!buffer_dirty(bh)) {
 			/* bdflush has written it.  We can drop it now */
+			__jbd2_journal_remove_checkpoint(jh);
 			goto zap_buffer;
 		}
 
@@ -2181,6 +2186,7 @@ static int journal_unmap_buffer(journal_t *journal, struct buffer_head *bh,
 				/* The orphan record's transaction has
 				 * committed.  We can cleanse this buffer */
 				clear_buffer_jbddirty(bh);
+				__jbd2_journal_remove_checkpoint(jh);
 				goto zap_buffer;
 			}
 		}
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 5133bb18830e..c8bd1ddb7df8 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -8060,7 +8060,6 @@ static void nfs4_layoutreturn_release(void *calldata)
 		pnfs_set_layout_stateid(lo, &lrp->res.stateid, true);
 	pnfs_mark_matching_lsegs_invalid(lo, &freeme, &lrp->args.range);
 	pnfs_clear_layoutreturn_waitbit(lo);
-	lo->plh_block_lgets--;
 	spin_unlock(&lo->plh_inode->i_lock);
 	pnfs_free_lseg_list(&freeme);
 	pnfs_put_layout_hdr(lrp->args.layout);
diff --git a/fs/ocfs2/dlm/dlmmaster.c b/fs/ocfs2/dlm/dlmmaster.c
index ce38b4ccc9ab..5e355650eea0 100644
--- a/fs/ocfs2/dlm/dlmmaster.c
+++ b/fs/ocfs2/dlm/dlmmaster.c
@@ -2519,6 +2519,11 @@ static int dlm_migrate_lockres(struct dlm_ctxt *dlm,
 	spin_lock(&dlm->master_lock);
 	ret = dlm_add_migration_mle(dlm, res, mle, &oldmle, name,
 				    namelen, target, dlm->node_num);
+	/* get an extra reference on the mle.
+	 * otherwise the assert_master from the new
+	 * master will destroy this.
+	 */
+	dlm_get_mle_inuse(mle);
 	spin_unlock(&dlm->master_lock);
 	spin_unlock(&dlm->spinlock);
 
@@ -2554,6 +2559,7 @@ fail:
 		if (mle_added) {
 			dlm_mle_detach_hb_events(dlm, mle);
 			dlm_put_mle(mle);
+			dlm_put_mle_inuse(mle);
 		} else if (mle) {
 			kmem_cache_free(dlm_mle_cache, mle);
 			mle = NULL;
@@ -2571,17 +2577,6 @@ fail:
 	 * ensure that all assert_master work is flushed. */
 	flush_workqueue(dlm->dlm_worker);
 
-	/* get an extra reference on the mle.
-	 * otherwise the assert_master from the new
-	 * master will destroy this.
-	 * also, make sure that all callers of dlm_get_mle
-	 * take both dlm->spinlock and dlm->master_lock */
-	spin_lock(&dlm->spinlock);
-	spin_lock(&dlm->master_lock);
-	dlm_get_mle_inuse(mle);
-	spin_unlock(&dlm->master_lock);
-	spin_unlock(&dlm->spinlock);
-
 	/* notify new node and send all lock state */
 	/* call send_one_lockres with migration flag.
 	 * this serves as notice to the target node that a
@@ -3310,6 +3305,15 @@ top:
 			    mle->new_master != dead_node)
 				continue;
 
+			if (mle->new_master == dead_node && mle->inuse) {
+				mlog(ML_NOTICE, "%s: target %u died during "
+						"migration from %u, the MLE is "
+						"still keep used, ignore it!\n",
+						dlm->name, dead_node,
+						mle->master);
+				continue;
+			}
+
 			/* If we have reached this point, this mle needs to be
 			 * removed from the list and freed. */
 			dlm_clean_migration_mle(dlm, mle);
diff --git a/fs/ocfs2/dlm/dlmrecovery.c b/fs/ocfs2/dlm/dlmrecovery.c
index 58eaa5c0d387..572a3dc4861f 100644
--- a/fs/ocfs2/dlm/dlmrecovery.c
+++ b/fs/ocfs2/dlm/dlmrecovery.c
@@ -2360,6 +2360,8 @@ static void dlm_do_local_recovery_cleanup(struct dlm_ctxt *dlm, u8 dead_node)
 						break;
 					}
 				}
+				dlm_lockres_clear_refmap_bit(dlm, res,
+						dead_node);
 				spin_unlock(&res->spinlock);
 				continue;
 			}
diff --git a/fs/ocfs2/dlmglue.c b/fs/ocfs2/dlmglue.c
index 1c91103c1333..9a894aecc960 100644
--- a/fs/ocfs2/dlmglue.c
+++ b/fs/ocfs2/dlmglue.c
@@ -1390,6 +1390,7 @@ static int __ocfs2_cluster_lock(struct ocfs2_super *osb,
 	unsigned int gen;
 	int noqueue_attempted = 0;
 	int dlm_locked = 0;
+	int kick_dc = 0;
 
 	if (!(lockres->l_flags & OCFS2_LOCK_INITIALIZED)) {
 		mlog_errno(-EINVAL);
@@ -1524,7 +1525,12 @@ update_holders:
 unlock:
 	lockres_clear_flags(lockres, OCFS2_LOCK_UPCONVERT_FINISHING);
 
+	/* ocfs2_unblock_lock reques on seeing OCFS2_LOCK_UPCONVERT_FINISHING */
+	kick_dc = (lockres->l_flags & OCFS2_LOCK_BLOCKED);
+
 	spin_unlock_irqrestore(&lockres->l_lock, flags);
+	if (kick_dc)
+		ocfs2_wake_downconvert_thread(osb);
 out:
 	/*
 	 * This is helping work around a lock inversion between the page lock
diff --git a/fs/ocfs2/namei.c b/fs/ocfs2/namei.c
index 12bfa9ca5583..c0356c18cdf5 100644
--- a/fs/ocfs2/namei.c
+++ b/fs/ocfs2/namei.c
@@ -369,13 +369,11 @@ static int ocfs2_mknod(struct inode *dir,
 		goto leave;
 	}
 
-	status = posix_acl_create(dir, &mode, &default_acl, &acl);
+	status = posix_acl_create(dir, &inode->i_mode, &default_acl, &acl);
 	if (status) {
 		mlog_errno(status);
 		goto leave;
 	}
-	/* update inode->i_mode after mask with "umask". */
-	inode->i_mode = mode;
 
 	handle = ocfs2_start_trans(osb, ocfs2_mknod_credits(osb->sb,
 							    S_ISDIR(mode),
diff --git a/fs/ocfs2/resize.c b/fs/ocfs2/resize.c
index d5da6f624142..79b8021302b3 100644
--- a/fs/ocfs2/resize.c
+++ b/fs/ocfs2/resize.c
@@ -54,11 +54,12 @@
 static u16 ocfs2_calc_new_backup_super(struct inode *inode,
 				       struct ocfs2_group_desc *gd,
 				       u16 cl_cpg,
+				       u16 old_bg_clusters,
 				       int set)
 {
 	int i;
 	u16 backups = 0;
-	u32 cluster;
+	u32 cluster, lgd_cluster;
 	u64 blkno, gd_blkno, lgd_blkno = le64_to_cpu(gd->bg_blkno);
 
 	for (i = 0; i < OCFS2_MAX_BACKUP_SUPERBLOCKS; i++) {
@@ -71,6 +72,12 @@ static u16 ocfs2_calc_new_backup_super(struct inode *inode,
 		else if (gd_blkno > lgd_blkno)
 			break;
 
+		/* check if already done backup super */
+		lgd_cluster = ocfs2_blocks_to_clusters(inode->i_sb, lgd_blkno);
+		lgd_cluster += old_bg_clusters;
+		if (lgd_cluster >= cluster)
+			continue;
+
 		if (set)
 			ocfs2_set_bit(cluster % cl_cpg,
 				      (unsigned long *)gd->bg_bitmap);
@@ -99,6 +106,7 @@ static int ocfs2_update_last_group_and_inode(handle_t *handle,
 	u16 chain, num_bits, backups = 0;
 	u16 cl_bpc = le16_to_cpu(cl->cl_bpc);
 	u16 cl_cpg = le16_to_cpu(cl->cl_cpg);
+	u16 old_bg_clusters;
 
 	trace_ocfs2_update_last_group_and_inode(new_clusters,
 						first_new_cluster);
@@ -112,6 +120,7 @@ static int ocfs2_update_last_group_and_inode(handle_t *handle,
 
 	group = (struct ocfs2_group_desc *)group_bh->b_data;
 
+	old_bg_clusters = le16_to_cpu(group->bg_bits) / cl_bpc;
 	/* update the group first. */
 	num_bits = new_clusters * cl_bpc;
 	le16_add_cpu(&group->bg_bits, num_bits);
@@ -125,7 +134,7 @@ static int ocfs2_update_last_group_and_inode(handle_t *handle,
 				     OCFS2_FEATURE_COMPAT_BACKUP_SB)) {
 		backups = ocfs2_calc_new_backup_super(bm_inode,
 						     group,
-						     cl_cpg, 1);
+						     cl_cpg, old_bg_clusters, 1);
 		le16_add_cpu(&group->bg_free_bits_count, -1 * backups);
 	}
 
@@ -163,7 +172,7 @@ out_rollback:
 	if (ret < 0) {
 		ocfs2_calc_new_backup_super(bm_inode,
 					    group,
-					    cl_cpg, 0);
+					    cl_cpg, old_bg_clusters, 0);
 		le16_add_cpu(&group->bg_free_bits_count, backups);
 		le16_add_cpu(&group->bg_bits, -1 * num_bits);
 		le16_add_cpu(&group->bg_free_bits_count, -1 * num_bits);
diff --git a/fs/pipe.c b/fs/pipe.c
index 8865f7963700..14788ddcd3f3 100644
--- a/fs/pipe.c
+++ b/fs/pipe.c
@@ -366,18 +366,17 @@ pipe_write(struct kiocb *iocb, struct iov_iter *from)
 		int offset = buf->offset + buf->len;
 
 		if (ops->can_merge && offset + chars <= PAGE_SIZE) {
-			int error = ops->confirm(pipe, buf);
-			if (error)
+			ret = ops->confirm(pipe, buf);
+			if (ret)
 				goto out;
 
 			ret = copy_page_from_iter(buf->page, offset, chars, from);
 			if (unlikely(ret < chars)) {
-				error = -EFAULT;
+				ret = -EFAULT;
 				goto out;
 			}
 			do_wakeup = 1;
-			buf->len += chars;
-			ret = chars;
+			buf->len += ret;
 			if (!iov_iter_count(from))
 				goto out;
 		}
diff --git a/fs/proc/base.c b/fs/proc/base.c
index 29595af32866..4b6fb2cbd928 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -2484,6 +2484,7 @@ static ssize_t proc_coredump_filter_write(struct file *file,
 	mm = get_task_mm(task);
 	if (!mm)
 		goto out_no_mm;
+	ret = 0;
 
 	for (i = 0, mask = 1; i < MMF_DUMP_FILTER_BITS; i++, mask <<= 1) {
 		if (val & mask)
diff --git a/fs/proc/fd.c b/fs/proc/fd.c
index 6e5fcd00733e..3c2a915c695a 100644
--- a/fs/proc/fd.c
+++ b/fs/proc/fd.c
@@ -291,11 +291,19 @@ static struct dentry *proc_lookupfd(struct inode *dir, struct dentry *dentry,
  */
 int proc_fd_permission(struct inode *inode, int mask)
 {
-	int rv = generic_permission(inode, mask);
+	struct task_struct *p;
+	int rv;
+
+	rv = generic_permission(inode, mask);
 	if (rv == 0)
-		return 0;
-	if (task_tgid(current) == proc_pid(inode))
+		return rv;
+
+	rcu_read_lock();
+	p = pid_task(proc_pid(inode), PIDTYPE_PID);
+	if (p && same_thread_group(p, current))
 		rv = 0;
+	rcu_read_unlock();
+
 	return rv;
 }
 
diff --git a/fs/seq_file.c b/fs/seq_file.c
index 225586e141ca..a8e288755f24 100644
--- a/fs/seq_file.c
+++ b/fs/seq_file.c
@@ -25,12 +25,17 @@ static void seq_set_overflow(struct seq_file *m)
 static void *seq_buf_alloc(unsigned long size)
 {
 	void *buf;
+	gfp_t gfp = GFP_KERNEL;
 
 	/*
-	 * __GFP_NORETRY to avoid oom-killings with high-order allocations -
-	 * it's better to fall back to vmalloc() than to kill things.
+	 * For high order allocations, use __GFP_NORETRY to avoid oom-killing -
+	 * it's better to fall back to vmalloc() than to kill things.  For small
+	 * allocations, just use GFP_KERNEL which will oom kill, thus no need
+	 * for vmalloc fallback.
 	 */
-	buf = kmalloc(size, GFP_KERNEL | __GFP_NORETRY | __GFP_NOWARN);
+	if (size > PAGE_SIZE)
+		gfp |= __GFP_NORETRY | __GFP_NOWARN;
+	buf = kmalloc(size, gfp);
 	if (!buf && size > PAGE_SIZE)
 		buf = vmalloc(size);
 	return buf;
diff --git a/fs/sysv/inode.c b/fs/sysv/inode.c
index 590ad9206e3f..02fa1dcc5969 100644
--- a/fs/sysv/inode.c
+++ b/fs/sysv/inode.c
@@ -162,15 +162,8 @@ void sysv_set_inode(struct inode *inode, dev_t rdev)
 		inode->i_fop = &sysv_dir_operations;
 		inode->i_mapping->a_ops = &sysv_aops;
 	} else if (S_ISLNK(inode->i_mode)) {
-		if (inode->i_blocks) {
-			inode->i_op = &sysv_symlink_inode_operations;
-			inode->i_mapping->a_ops = &sysv_aops;
-		} else {
-			inode->i_op = &simple_symlink_inode_operations;
-			inode->i_link = (char *)SYSV_I(inode)->i_data;
-			nd_terminate_link(inode->i_link, inode->i_size,
-				sizeof(SYSV_I(inode)->i_data) - 1);
-		}
+		inode->i_op = &sysv_symlink_inode_operations;
+		inode->i_mapping->a_ops = &sysv_aops;
 	} else
 		init_special_inode(inode, inode->i_mode, rdev);
 }
diff --git a/fs/tracefs/inode.c b/fs/tracefs/inode.c
index cbc8d5d2755a..c66f2423e1f5 100644
--- a/fs/tracefs/inode.c
+++ b/fs/tracefs/inode.c
@@ -340,8 +340,12 @@ static struct dentry *start_creating(const char *name, struct dentry *parent)
 		dput(dentry);
 		dentry = ERR_PTR(-EEXIST);
 	}
-	if (IS_ERR(dentry))
+
+	if (IS_ERR(dentry)) {
 		mutex_unlock(&parent->d_inode->i_mutex);
+		simple_release_fs(&tracefs_mount, &tracefs_mount_count);
+	}
+
 	return dentry;
 }
 
diff --git a/include/crypto/hash.h b/include/crypto/hash.h
index 8e920b44c0ac..da791ac52f13 100644
--- a/include/crypto/hash.h
+++ b/include/crypto/hash.h
@@ -204,6 +204,7 @@ struct crypto_ahash {
 		      unsigned int keylen);
 
 	unsigned int reqsize;
+	bool has_setkey;
 	struct crypto_tfm base;
 };
 
@@ -361,6 +362,11 @@ static inline void *ahash_request_ctx(struct ahash_request *req)
 int crypto_ahash_setkey(struct crypto_ahash *tfm, const u8 *key,
 			unsigned int keylen);
 
+static inline bool crypto_ahash_has_setkey(struct crypto_ahash *tfm)
+{
+	return tfm->has_setkey;
+}
+
 /**
  * crypto_ahash_finup() - update and finalize message digest
  * @req: reference to the ahash_request handle that holds all information
diff --git a/include/crypto/if_alg.h b/include/crypto/if_alg.h
index 018afb264ac2..a2bfd7843f18 100644
--- a/include/crypto/if_alg.h
+++ b/include/crypto/if_alg.h
@@ -30,6 +30,9 @@ struct alg_sock {
 
 	struct sock *parent;
 
+	unsigned int refcnt;
+	unsigned int nokey_refcnt;
+
 	const struct af_alg_type *type;
 	void *private;
 };
@@ -50,9 +53,11 @@ struct af_alg_type {
 	void (*release)(void *private);
 	int (*setkey)(void *private, const u8 *key, unsigned int keylen);
 	int (*accept)(void *private, struct sock *sk);
+	int (*accept_nokey)(void *private, struct sock *sk);
 	int (*setauthsize)(void *private, unsigned int authsize);
 
 	struct proto_ops *ops;
+	struct proto_ops *ops_nokey;
 	struct module *owner;
 	char name[14];
 };
@@ -67,6 +72,7 @@ int af_alg_register_type(const struct af_alg_type *type);
 int af_alg_unregister_type(const struct af_alg_type *type);
 
 int af_alg_release(struct socket *sock);
+void af_alg_release_parent(struct sock *sk);
 int af_alg_accept(struct sock *sk, struct socket *newsock);
 
 int af_alg_make_sg(struct af_alg_sgl *sgl, struct iov_iter *iter, int len);
@@ -83,11 +89,6 @@ static inline struct alg_sock *alg_sk(struct sock *sk)
 	return (struct alg_sock *)sk;
 }
 
-static inline void af_alg_release_parent(struct sock *sk)
-{
-	sock_put(alg_sk(sk)->parent);
-}
-
 static inline void af_alg_init_completion(struct af_alg_completion *completion)
 {
 	init_completion(&completion->completion);
diff --git a/include/crypto/skcipher.h b/include/crypto/skcipher.h
index d8dd41fb034f..fd8742a40ff3 100644
--- a/include/crypto/skcipher.h
+++ b/include/crypto/skcipher.h
@@ -61,6 +61,8 @@ struct crypto_skcipher {
 	unsigned int ivsize;
 	unsigned int reqsize;
 
+	bool has_setkey;
+
 	struct crypto_tfm base;
 };
 
@@ -305,6 +307,11 @@ static inline int crypto_skcipher_setkey(struct crypto_skcipher *tfm,
 	return tfm->setkey(tfm, key, keylen);
 }
 
+static inline bool crypto_skcipher_has_setkey(struct crypto_skcipher *tfm)
+{
+	return tfm->has_setkey;
+}
+
 /**
  * crypto_skcipher_reqtfm() - obtain cipher handle from request
  * @req: skcipher_request out of which the cipher handle is to be obtained
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 19c2e947d4d1..3a3ff074782f 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -767,7 +767,6 @@ extern void blk_rq_set_block_pc(struct request *);
 extern void blk_requeue_request(struct request_queue *, struct request *);
 extern void blk_add_request_payload(struct request *rq, struct page *page,
 		unsigned int len);
-extern int blk_rq_check_limits(struct request_queue *q, struct request *rq);
 extern int blk_lld_busy(struct request_queue *q);
 extern int blk_rq_prep_clone(struct request *rq, struct request *rq_src,
 			     struct bio_set *bs, gfp_t gfp_mask,
diff --git a/include/linux/hrtimer.h b/include/linux/hrtimer.h
index 76dd4f0da5ca..2ead22dd74a0 100644
--- a/include/linux/hrtimer.h
+++ b/include/linux/hrtimer.h
@@ -87,7 +87,8 @@ enum hrtimer_restart {
  * @function:	timer expiry callback function
  * @base:	pointer to the timer base (per cpu and per clock)
  * @state:	state information (See bit values above)
- * @start_pid: timer statistics field to store the pid of the task which
+ * @is_rel:	Set if the timer was armed relative
+ * @start_pid:  timer statistics field to store the pid of the task which
  *		started the timer
  * @start_site:	timer statistics field to store the site where the timer
  *		was started
@@ -101,7 +102,8 @@ struct hrtimer {
 	ktime_t				_softexpires;
 	enum hrtimer_restart		(*function)(struct hrtimer *);
 	struct hrtimer_clock_base	*base;
-	unsigned long			state;
+	u8				state;
+	u8				is_rel;
 #ifdef CONFIG_TIMER_STATS
 	int				start_pid;
 	void				*start_site;
@@ -321,6 +323,27 @@ static inline void clock_was_set_delayed(void) { }
 
 #endif
 
+static inline ktime_t
+__hrtimer_expires_remaining_adjusted(const struct hrtimer *timer, ktime_t now)
+{
+	ktime_t rem = ktime_sub(timer->node.expires, now);
+
+	/*
+	 * Adjust relative timers for the extra we added in
+	 * hrtimer_start_range_ns() to prevent short timeouts.
+	 */
+	if (IS_ENABLED(CONFIG_TIME_LOW_RES) && timer->is_rel)
+		rem.tv64 -= hrtimer_resolution;
+	return rem;
+}
+
+static inline ktime_t
+hrtimer_expires_remaining_adjusted(const struct hrtimer *timer)
+{
+	return __hrtimer_expires_remaining_adjusted(timer,
+						    timer->base->get_time());
+}
+
 extern void clock_was_set(void);
 #ifdef CONFIG_TIMERFD
 extern void timerfd_clock_was_set(void);
@@ -390,7 +413,12 @@ static inline void hrtimer_restart(struct hrtimer *timer)
 }
 
 /* Query timers: */
-extern ktime_t hrtimer_get_remaining(const struct hrtimer *timer);
+extern ktime_t __hrtimer_get_remaining(const struct hrtimer *timer, bool adjust);
+
+static inline ktime_t hrtimer_get_remaining(const struct hrtimer *timer)
+{
+	return __hrtimer_get_remaining(timer, false);
+}
 
 extern u64 hrtimer_get_next_event(void);
 
diff --git a/include/linux/signal.h b/include/linux/signal.h
index ab1e0392b5ac..92557bbce7e7 100644
--- a/include/linux/signal.h
+++ b/include/linux/signal.h
@@ -239,7 +239,6 @@ extern int sigprocmask(int, sigset_t *, sigset_t *);
 extern void set_current_blocked(sigset_t *);
 extern void __set_current_blocked(const sigset_t *);
 extern int show_unhandled_signals;
-extern int sigsuspend(sigset_t *);
 
 struct sigaction {
 #ifndef __ARCH_HAS_IRIX_SIGACTION
diff --git a/include/sound/rawmidi.h b/include/sound/rawmidi.h
index f6cbef78db62..3b91ad5d5115 100644
--- a/include/sound/rawmidi.h
+++ b/include/sound/rawmidi.h
@@ -167,6 +167,10 @@ int snd_rawmidi_transmit_peek(struct snd_rawmidi_substream *substream,
 int snd_rawmidi_transmit_ack(struct snd_rawmidi_substream *substream, int count);
 int snd_rawmidi_transmit(struct snd_rawmidi_substream *substream,
 			 unsigned char *buffer, int count);
+int __snd_rawmidi_transmit_peek(struct snd_rawmidi_substream *substream,
+			      unsigned char *buffer, int count);
+int __snd_rawmidi_transmit_ack(struct snd_rawmidi_substream *substream,
+			       int count);
 
 /* main midi functions */
 
diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
index 8f0324ef72ab..9982616ce712 100644
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -269,6 +269,9 @@ static u32 clear_idx;
 #define PREFIX_MAX		32
 #define LOG_LINE_MAX		(1024 - PREFIX_MAX)
 
+#define LOG_LEVEL(v)		((v) & 0x07)
+#define LOG_FACILITY(v)		((v) >> 3 & 0xff)
+
 /* record buffer */
 #if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS)
 #define LOG_ALIGN 4
@@ -611,7 +614,6 @@ struct devkmsg_user {
 static ssize_t devkmsg_write(struct kiocb *iocb, struct iov_iter *from)
 {
 	char *buf, *line;
-	int i;
 	int level = default_message_loglevel;
 	int facility = 1;	/* LOG_USER */
 	size_t len = iov_iter_count(from);
@@ -641,12 +643,13 @@ static ssize_t devkmsg_write(struct kiocb *iocb, struct iov_iter *from)
 	line = buf;
 	if (line[0] == '<') {
 		char *endp = NULL;
+		unsigned int u;
 
-		i = simple_strtoul(line+1, &endp, 10);
+		u = simple_strtoul(line + 1, &endp, 10);
 		if (endp && endp[0] == '>') {
-			level = i & 7;
-			if (i >> 3)
-				facility = i >> 3;
+			level = LOG_LEVEL(u);
+			if (LOG_FACILITY(u) != 0)
+				facility = LOG_FACILITY(u);
 			endp++;
 			len -= endp - line;
 			line = endp;
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index bcd214e4b4d6..9a584b204e85 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -6678,7 +6678,7 @@ static void sched_init_numa(void)
 
 			sched_domains_numa_masks[i][j] = mask;
 
-			for (k = 0; k < nr_node_ids; k++) {
+			for_each_node(k) {
 				if (node_distance(j, k) > sched_domains_numa_distance[i])
 					continue;
 
diff --git a/kernel/signal.c b/kernel/signal.c
index 0f6bbbe77b46..6c863ca42a76 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -3552,7 +3552,7 @@ SYSCALL_DEFINE0(pause)
 
 #endif
 
-int sigsuspend(sigset_t *set)
+static int sigsuspend(sigset_t *set)
 {
 	current->saved_sigmask = current->blocked;
 	set_current_blocked(set);
diff --git a/kernel/time/hrtimer.c b/kernel/time/hrtimer.c
index 457a373e2181..8be98288dcbc 100644
--- a/kernel/time/hrtimer.c
+++ b/kernel/time/hrtimer.c
@@ -897,10 +897,10 @@ static int enqueue_hrtimer(struct hrtimer *timer,
  */
 static void __remove_hrtimer(struct hrtimer *timer,
 			     struct hrtimer_clock_base *base,
-			     unsigned long newstate, int reprogram)
+			     u8 newstate, int reprogram)
 {
 	struct hrtimer_cpu_base *cpu_base = base->cpu_base;
-	unsigned int state = timer->state;
+	u8 state = timer->state;
 
 	timer->state = newstate;
 	if (!(state & HRTIMER_STATE_ENQUEUED))
@@ -930,7 +930,7 @@ static inline int
 remove_hrtimer(struct hrtimer *timer, struct hrtimer_clock_base *base, bool restart)
 {
 	if (hrtimer_is_queued(timer)) {
-		unsigned long state = timer->state;
+		u8 state = timer->state;
 		int reprogram;
 
 		/*
@@ -954,6 +954,22 @@ remove_hrtimer(struct hrtimer *timer, struct hrtimer_clock_base *base, bool rest
 	return 0;
 }
 
+static inline ktime_t hrtimer_update_lowres(struct hrtimer *timer, ktime_t tim,
+					    const enum hrtimer_mode mode)
+{
+#ifdef CONFIG_TIME_LOW_RES
+	/*
+	 * CONFIG_TIME_LOW_RES indicates that the system has no way to return
+	 * granular time values. For relative timers we add hrtimer_resolution
+	 * (i.e. one jiffie) to prevent short timeouts.
+	 */
+	timer->is_rel = mode & HRTIMER_MODE_REL;
+	if (timer->is_rel)
+		tim = ktime_add_safe(tim, ktime_set(0, hrtimer_resolution));
+#endif
+	return tim;
+}
+
 /**
  * hrtimer_start_range_ns - (re)start an hrtimer on the current CPU
  * @timer:	the timer to be added
@@ -974,19 +990,10 @@ void hrtimer_start_range_ns(struct hrtimer *timer, ktime_t tim,
 	/* Remove an active timer from the queue: */
 	remove_hrtimer(timer, base, true);
 
-	if (mode & HRTIMER_MODE_REL) {
+	if (mode & HRTIMER_MODE_REL)
 		tim = ktime_add_safe(tim, base->get_time());
-		/*
-		 * CONFIG_TIME_LOW_RES is a temporary way for architectures
-		 * to signal that they simply return xtime in
-		 * do_gettimeoffset(). In this case we want to round up by
-		 * resolution when starting a relative timer, to avoid short
-		 * timeouts. This will go away with the GTOD framework.
-		 */
-#ifdef CONFIG_TIME_LOW_RES
-		tim = ktime_add_safe(tim, ktime_set(0, hrtimer_resolution));
-#endif
-	}
+
+	tim = hrtimer_update_lowres(timer, tim, mode);
 
 	hrtimer_set_expires_range_ns(timer, tim, delta_ns);
 
@@ -1074,19 +1081,23 @@ EXPORT_SYMBOL_GPL(hrtimer_cancel);
 /**
  * hrtimer_get_remaining - get remaining time for the timer
  * @timer:	the timer to read
+ * @adjust:	adjust relative timers when CONFIG_TIME_LOW_RES=y
  */
-ktime_t hrtimer_get_remaining(const struct hrtimer *timer)
+ktime_t __hrtimer_get_remaining(const struct hrtimer *timer, bool adjust)
 {
 	unsigned long flags;
 	ktime_t rem;
 
 	lock_hrtimer_base(timer, &flags);
-	rem = hrtimer_expires_remaining(timer);
+	if (IS_ENABLED(CONFIG_TIME_LOW_RES) && adjust)
+		rem = hrtimer_expires_remaining_adjusted(timer);
+	else
+		rem = hrtimer_expires_remaining(timer);
 	unlock_hrtimer_base(timer, &flags);
 
 	return rem;
 }
-EXPORT_SYMBOL_GPL(hrtimer_get_remaining);
+EXPORT_SYMBOL_GPL(__hrtimer_get_remaining);
 
 #ifdef CONFIG_NO_HZ_COMMON
 /**
@@ -1220,6 +1231,14 @@ static void __run_hrtimer(struct hrtimer_cpu_base *cpu_base,
 	fn = timer->function;
 
 	/*
+	 * Clear the 'is relative' flag for the TIME_LOW_RES case. If the
+	 * timer is restarted with a period then it becomes an absolute
+	 * timer. If its not restarted it does not matter.
+	 */
+	if (IS_ENABLED(CONFIG_TIME_LOW_RES))
+		timer->is_rel = false;
+
+	/*
 	 * Because we run timers from hardirq context, there is no chance
 	 * they get migrated to another cpu, therefore its safe to unlock
 	 * the timer base.
diff --git a/kernel/time/timer_list.c b/kernel/time/timer_list.c
index f75e35b60149..ba7d8b288bb3 100644
--- a/kernel/time/timer_list.c
+++ b/kernel/time/timer_list.c
@@ -69,7 +69,7 @@ print_timer(struct seq_file *m, struct hrtimer *taddr, struct hrtimer *timer,
 	print_name_offset(m, taddr);
 	SEQ_printf(m, ", ");
 	print_name_offset(m, timer->function);
-	SEQ_printf(m, ", S:%02lx", timer->state);
+	SEQ_printf(m, ", S:%02x", timer->state);
 #ifdef CONFIG_TIMER_STATS
 	SEQ_printf(m, ", ");
 	print_name_offset(m, timer->start_site);
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 6e79408674aa..69f97541ce6e 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -6602,7 +6602,7 @@ static int instance_rmdir(const char *name)
 	tracing_set_nop(tr);
 	event_trace_del_tracer(tr);
 	ftrace_destroy_function_files(tr);
-	debugfs_remove_recursive(tr->dir);
+	tracefs_remove_recursive(tr->dir);
 	free_trace_buffers(tr);
 
 	kfree(tr->name);
diff --git a/kernel/trace/trace_printk.c b/kernel/trace/trace_printk.c
index 36c1455b7567..2dbffe22cbcf 100644
--- a/kernel/trace/trace_printk.c
+++ b/kernel/trace/trace_printk.c
@@ -267,6 +267,7 @@ static const char **find_next(void *v, loff_t *pos)
 	if (*pos < last_index + start_index)
 		return __start___tracepoint_str + (*pos - last_index);
 
+	start_index += last_index;
 	return find_next_mod_format(start_index, v, fmt, pos);
 }
 
diff --git a/kernel/trace/trace_stack.c b/kernel/trace/trace_stack.c
index 8abf1ba18085..740a6d950085 100644
--- a/kernel/trace/trace_stack.c
+++ b/kernel/trace/trace_stack.c
@@ -120,6 +120,13 @@ check_stack(unsigned long ip, unsigned long *stack)
 	}
 
 	/*
+	 * Some archs may not have the passed in ip in the dump.
+	 * If that happens, we need to show everything.
+	 */
+	if (i == stack_trace_max.nr_entries)
+		i = 0;
+
+	/*
 	 * Now find where in the stack these are.
 	 */
 	x = 0;
diff --git a/lib/hexdump.c b/lib/hexdump.c
index 8d74c20d8595..992457b1284c 100644
--- a/lib/hexdump.c
+++ b/lib/hexdump.c
@@ -169,11 +169,15 @@ int hex_dump_to_buffer(const void *buf, size_t len, int rowsize, int groupsize,
 		}
 	} else {
 		for (j = 0; j < len; j++) {
-			if (linebuflen < lx + 3)
+			if (linebuflen < lx + 2)
 				goto overflow2;
 			ch = ptr[j];
 			linebuf[lx++] = hex_asc_hi(ch);
+			if (linebuflen < lx + 2)
+				goto overflow2;
 			linebuf[lx++] = hex_asc_lo(ch);
+			if (linebuflen < lx + 2)
+				goto overflow2;
 			linebuf[lx++] = ' ';
 		}
 		if (j)
diff --git a/lib/libcrc32c.c b/lib/libcrc32c.c
index 6a08ce7d6adc..acf9da449f81 100644
--- a/lib/libcrc32c.c
+++ b/lib/libcrc32c.c
@@ -74,3 +74,4 @@ module_exit(libcrc32c_mod_fini);
 MODULE_AUTHOR("Clay Haapala <chaapala@cisco.com>");
 MODULE_DESCRIPTION("CRC32c (Castagnoli) calculations");
 MODULE_LICENSE("GPL");
+MODULE_SOFTDEP("pre: crc32c");
diff --git a/mm/backing-dev.c b/mm/backing-dev.c
index 619984fc07ec..e23bd8808b82 100644
--- a/mm/backing-dev.c
+++ b/mm/backing-dev.c
@@ -957,8 +957,9 @@ EXPORT_SYMBOL(congestion_wait);
  * jiffies for either a BDI to exit congestion of the given @sync queue
  * or a write to complete.
  *
- * In the absence of zone congestion, cond_resched() is called to yield
- * the processor if necessary but otherwise does not sleep.
+ * In the absence of zone congestion, a short sleep or a cond_resched is
+ * performed to yield the processor and to allow other subsystems to make
+ * a forward progress.
  *
  * The return value is 0 if the sleep is for the full timeout. Otherwise,
  * it is the number of jiffies that were still remaining when the function
@@ -978,7 +979,19 @@ long wait_iff_congested(struct zone *zone, int sync, long timeout)
 	 */
 	if (atomic_read(&nr_wb_congested[sync]) == 0 ||
 	    !test_bit(ZONE_CONGESTED, &zone->flags)) {
-		cond_resched();
+
+		/*
+		 * Memory allocation/reclaim might be called from a WQ
+		 * context and the current implementation of the WQ
+		 * concurrency control doesn't recognize that a particular
+		 * WQ is congested if the worker thread is looping without
+		 * ever sleeping. Therefore we have to do a short sleep
+		 * here rather than calling cond_resched().
+		 */
+		if (current->flags & PF_WQ_WORKER)
+			schedule_timeout(1);
+		else
+			cond_resched();
 
 		/* In case we scheduled, work out time remaining */
 		ret = timeout - (jiffies - start);
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 9cc773483624..960f0ace6824 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -372,8 +372,10 @@ retry_locked:
 		spin_unlock(&resv->lock);
 
 		trg = kmalloc(sizeof(*trg), GFP_KERNEL);
-		if (!trg)
+		if (!trg) {
+			kfree(nrg);
 			return -ENOMEM;
+		}
 
 		spin_lock(&resv->lock);
 		list_add(&trg->link, &resv->region_cache);
@@ -483,8 +485,16 @@ static long region_del(struct resv_map *resv, long f, long t)
 retry:
 	spin_lock(&resv->lock);
 	list_for_each_entry_safe(rg, trg, head, link) {
-		if (rg->to <= f)
+		/*
+		 * Skip regions before the range to be deleted.  file_region
+		 * ranges are normally of the form [from, to).  However, there
+		 * may be a "placeholder" entry in the map which is of the form
+		 * (from, to) with from == to.  Check for placeholder entries
+		 * at the beginning of the range to be deleted.
+		 */
+		if (rg->to <= f && (rg->to != rg->from || rg->to != f))
 			continue;
+
 		if (rg->from >= t)
 			break;
 
@@ -1790,7 +1800,10 @@ struct page *alloc_huge_page(struct vm_area_struct *vma,
 		page = alloc_buddy_huge_page(h, NUMA_NO_NODE);
 		if (!page)
 			goto out_uncharge_cgroup;
-
+		if (!avoid_reserve && vma_has_reserves(vma, gbl_chg)) {
+			SetPagePrivate(page);
+			h->resv_huge_pages--;
+		}
 		spin_lock(&hugetlb_lock);
 		list_move(&page->lru, &h->hugepage_activelist);
 		/* Fall through */
@@ -3587,12 +3600,12 @@ int hugetlb_fault(struct mm_struct *mm, struct vm_area_struct *vma,
 		} else if (unlikely(is_hugetlb_entry_hwpoisoned(entry)))
 			return VM_FAULT_HWPOISON_LARGE |
 				VM_FAULT_SET_HINDEX(hstate_index(h));
+	} else {
+		ptep = huge_pte_alloc(mm, address, huge_page_size(h));
+		if (!ptep)
+			return VM_FAULT_OOM;
 	}
 
-	ptep = huge_pte_alloc(mm, address, huge_page_size(h));
-	if (!ptep)
-		return VM_FAULT_OOM;
-
 	mapping = vma->vm_file->f_mapping;
 	idx = vma_hugecache_offset(h, vma, address);
 
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index c57c4423c688..2233233282c6 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -902,14 +902,20 @@ struct mem_cgroup *mem_cgroup_iter(struct mem_cgroup *root,
 		if (prev && reclaim->generation != iter->generation)
 			goto out_unlock;
 
-		do {
+		while (1) {
 			pos = READ_ONCE(iter->position);
+			if (!pos || css_tryget(&pos->css))
+				break;
 			/*
-			 * A racing update may change the position and
-			 * put the last reference, hence css_tryget(),
-			 * or retry to see the updated position.
+			 * css reference reached zero, so iter->position will
+			 * be cleared by ->css_released. However, we should not
+			 * rely on this happening soon, because ->css_released
+			 * is called from a work queue, and by busy-waiting we
+			 * might block it. So we clear iter->position right
+			 * away.
 			 */
-		} while (pos && !css_tryget(&pos->css));
+			(void)cmpxchg(&iter->position, pos, NULL);
+		}
 	}
 
 	if (pos)
@@ -955,17 +961,13 @@ struct mem_cgroup *mem_cgroup_iter(struct mem_cgroup *root,
 	}
 
 	if (reclaim) {
-		if (cmpxchg(&iter->position, pos, memcg) == pos) {
-			if (memcg)
-				css_get(&memcg->css);
-			if (pos)
-				css_put(&pos->css);
-		}
-
 		/*
-		 * pairs with css_tryget when dereferencing iter->position
-		 * above.
+		 * The position could have already been updated by a competing
+		 * thread, so check that the value hasn't changed since we read
+		 * it to avoid reclaiming from the same cgroup twice.
 		 */
+		(void)cmpxchg(&iter->position, pos, memcg);
+
 		if (pos)
 			css_put(&pos->css);
 
@@ -998,6 +1000,28 @@ void mem_cgroup_iter_break(struct mem_cgroup *root,
 		css_put(&prev->css);
 }
 
+static void invalidate_reclaim_iterators(struct mem_cgroup *dead_memcg)
+{
+	struct mem_cgroup *memcg = dead_memcg;
+	struct mem_cgroup_reclaim_iter *iter;
+	struct mem_cgroup_per_zone *mz;
+	int nid, zid;
+	int i;
+
+	while ((memcg = parent_mem_cgroup(memcg))) {
+		for_each_node(nid) {
+			for (zid = 0; zid < MAX_NR_ZONES; zid++) {
+				mz = &memcg->nodeinfo[nid]->zoneinfo[zid];
+				for (i = 0; i <= DEF_PRIORITY; i++) {
+					iter = &mz->iter[i];
+					cmpxchg(&iter->position,
+						dead_memcg, NULL);
+				}
+			}
+		}
+	}
+}
+
 /*
  * Iteration constructs for visiting all cgroups (under a tree).  If
  * loops are exited prematurely (break), mem_cgroup_iter_break() must
@@ -2836,9 +2860,9 @@ static unsigned long tree_stat(struct mem_cgroup *memcg,
 	return val;
 }
 
-static inline u64 mem_cgroup_usage(struct mem_cgroup *memcg, bool swap)
+static inline unsigned long mem_cgroup_usage(struct mem_cgroup *memcg, bool swap)
 {
-	u64 val;
+	unsigned long val;
 
 	if (mem_cgroup_is_root(memcg)) {
 		val = tree_stat(memcg, MEM_CGROUP_STAT_CACHE);
@@ -2851,7 +2875,7 @@ static inline u64 mem_cgroup_usage(struct mem_cgroup *memcg, bool swap)
 		else
 			val = page_counter_read(&memcg->memsw);
 	}
-	return val << PAGE_SHIFT;
+	return val;
 }
 
 enum {
@@ -2885,9 +2909,9 @@ static u64 mem_cgroup_read_u64(struct cgroup_subsys_state *css,
 	switch (MEMFILE_ATTR(cft->private)) {
 	case RES_USAGE:
 		if (counter == &memcg->memory)
-			return mem_cgroup_usage(memcg, false);
+			return (u64)mem_cgroup_usage(memcg, false) * PAGE_SIZE;
 		if (counter == &memcg->memsw)
-			return mem_cgroup_usage(memcg, true);
+			return (u64)mem_cgroup_usage(memcg, true) * PAGE_SIZE;
 		return (u64)page_counter_read(counter) * PAGE_SIZE;
 	case RES_LIMIT:
 		return (u64)counter->limit * PAGE_SIZE;
@@ -3387,7 +3411,6 @@ static int __mem_cgroup_usage_register_event(struct mem_cgroup *memcg,
 	ret = page_counter_memparse(args, "-1", &threshold);
 	if (ret)
 		return ret;
-	threshold <<= PAGE_SHIFT;
 
 	mutex_lock(&memcg->thresholds_lock);
 
@@ -4361,6 +4384,13 @@ static void mem_cgroup_css_offline(struct cgroup_subsys_state *css)
 	wb_memcg_offline(memcg);
 }
 
+static void mem_cgroup_css_released(struct cgroup_subsys_state *css)
+{
+	struct mem_cgroup *memcg = mem_cgroup_from_css(css);
+
+	invalidate_reclaim_iterators(memcg);
+}
+
 static void mem_cgroup_css_free(struct cgroup_subsys_state *css)
 {
 	struct mem_cgroup *memcg = mem_cgroup_from_css(css);
@@ -5217,6 +5247,7 @@ struct cgroup_subsys memory_cgrp_subsys = {
 	.css_alloc = mem_cgroup_css_alloc,
 	.css_online = mem_cgroup_css_online,
 	.css_offline = mem_cgroup_css_offline,
+	.css_released = mem_cgroup_css_released,
 	.css_free = mem_cgroup_css_free,
 	.css_reset = mem_cgroup_css_reset,
 	.can_attach = mem_cgroup_can_attach,
diff --git a/mm/oom_kill.c b/mm/oom_kill.c
index 1ecc0bcaecc5..8ad35aa45436 100644
--- a/mm/oom_kill.c
+++ b/mm/oom_kill.c
@@ -554,6 +554,12 @@ void oom_kill_process(struct oom_control *oc, struct task_struct *p,
 
 	/* mm cannot safely be dereferenced after task_unlock(victim) */
 	mm = victim->mm;
+	/*
+	 * We should send SIGKILL before setting TIF_MEMDIE in order to prevent
+	 * the OOM victim from depleting the memory reserves from the user
+	 * space under its control.
+	 */
+	do_send_sig_info(SIGKILL, SEND_SIG_FORCED, victim, true);
 	mark_oom_victim(victim);
 	pr_err("Killed process %d (%s) total-vm:%lukB, anon-rss:%lukB, file-rss:%lukB\n",
 		task_pid_nr(victim), victim->comm, K(victim->mm->total_vm),
@@ -585,7 +591,6 @@ void oom_kill_process(struct oom_control *oc, struct task_struct *p,
 		}
 	rcu_read_unlock();
 
-	do_send_sig_info(SIGKILL, SEND_SIG_FORCED, victim, true);
 	put_task_struct(victim);
 }
 #undef K
diff --git a/mm/slab.c b/mm/slab.c
index 4fcc5dd8d5a6..461935bab9ef 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -282,6 +282,7 @@ static void kmem_cache_node_init(struct kmem_cache_node *parent)
 
 #define CFLGS_OFF_SLAB		(0x80000000UL)
 #define	OFF_SLAB(x)	((x)->flags & CFLGS_OFF_SLAB)
+#define OFF_SLAB_MIN_SIZE (max_t(size_t, PAGE_SIZE >> 5, KMALLOC_MIN_SIZE + 1))
 
 #define BATCHREFILL_LIMIT	16
 /*
@@ -2212,7 +2213,7 @@ __kmem_cache_create (struct kmem_cache *cachep, unsigned long flags)
 	 * it too early on. Always use on-slab management when
 	 * SLAB_NOLEAKTRACE to avoid recursive calls into kmemleak)
 	 */
-	if ((size >= (PAGE_SIZE >> 5)) && !slab_early_init &&
+	if (size >= OFF_SLAB_MIN_SIZE && !slab_early_init &&
 	    !(flags & SLAB_NOLEAKTRACE))
 		/*
 		 * Size is large, assume best to place the slab management obj
@@ -2276,7 +2277,7 @@ __kmem_cache_create (struct kmem_cache *cachep, unsigned long flags)
 		/*
 		 * This is a possibility for one of the kmalloc_{dma,}_caches.
 		 * But since we go off slab only for object size greater than
-		 * PAGE_SIZE/8, and kmalloc_{dma,}_caches get created
+		 * OFF_SLAB_MIN_SIZE, and kmalloc_{dma,}_caches get created
 		 * in ascending order,this should not happen at all.
 		 * But leave a BUG_ON for some lucky dude.
 		 */
diff --git a/mm/vmstat.c b/mm/vmstat.c
index fbf14485a049..34444706a3a7 100644
--- a/mm/vmstat.c
+++ b/mm/vmstat.c
@@ -1357,6 +1357,7 @@ static const struct file_operations proc_vmstat_file_operations = {
 #endif /* CONFIG_PROC_FS */
 
 #ifdef CONFIG_SMP
+static struct workqueue_struct *vmstat_wq;
 static DEFINE_PER_CPU(struct delayed_work, vmstat_work);
 int sysctl_stat_interval __read_mostly = HZ;
 static cpumask_var_t cpu_stat_off;
@@ -1369,7 +1370,7 @@ static void vmstat_update(struct work_struct *w)
 		 * to occur in the future. Keep on running the
 		 * update worker thread.
 		 */
-		schedule_delayed_work_on(smp_processor_id(),
+		queue_delayed_work_on(smp_processor_id(), vmstat_wq,
 			this_cpu_ptr(&vmstat_work),
 			round_jiffies_relative(sysctl_stat_interval));
 	} else {
@@ -1438,7 +1439,7 @@ static void vmstat_shepherd(struct work_struct *w)
 		if (need_update(cpu) &&
 			cpumask_test_and_clear_cpu(cpu, cpu_stat_off))
 
-			schedule_delayed_work_on(cpu,
+			queue_delayed_work_on(cpu, vmstat_wq,
 				&per_cpu(vmstat_work, cpu), 0);
 
 	put_online_cpus();
@@ -1527,6 +1528,7 @@ static int __init setup_vmstat(void)
 
 	start_shepherd_timer();
 	cpu_notifier_register_done();
+	vmstat_wq = alloc_workqueue("vmstat", WQ_FREEZABLE|WQ_MEM_RECLAIM, 0);
 #endif
 #ifdef CONFIG_PROC_FS
 	proc_create("buddyinfo", S_IRUGO, NULL, &fragmentation_file_operations);
diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c
index f135b1b6fcdc..3734fc4d2e74 100644
--- a/mm/zsmalloc.c
+++ b/mm/zsmalloc.c
@@ -304,7 +304,12 @@ static void free_handle(struct zs_pool *pool, unsigned long handle)
 
 static void record_obj(unsigned long handle, unsigned long obj)
 {
-	*(unsigned long *)handle = obj;
+	/*
+	 * lsb of @obj represents handle lock while other bits
+	 * represent object value the handle is pointing so
+	 * updating shouldn't do store tearing.
+	 */
+	WRITE_ONCE(*(unsigned long *)handle, obj);
 }
 
 /* zpool driver */
@@ -1629,6 +1634,13 @@ static int migrate_zspage(struct zs_pool *pool, struct size_class *class,
 		free_obj = obj_malloc(d_page, class, handle);
 		zs_object_copy(free_obj, used_obj, class);
 		index++;
+		/*
+		 * record_obj updates handle's value to free_obj and it will
+		 * invalidate lock bit(ie, HANDLE_PIN_BIT) of handle, which
+		 * breaks synchronization using pin_tag(e,g, zs_free) so
+		 * let's keep the lock bit.
+		 */
+		free_obj |= BIT(HANDLE_PIN_BIT);
 		record_obj(handle, free_obj);
 		unpin_tag(handle);
 		obj_free(pool, class, used_obj);
diff --git a/security/integrity/digsig.c b/security/integrity/digsig.c
index 36fb6b527829..5be9ffbe90ba 100644
--- a/security/integrity/digsig.c
+++ b/security/integrity/digsig.c
@@ -105,7 +105,7 @@ int __init integrity_load_x509(const unsigned int id, const char *path)
 				   rc,
 				   ((KEY_POS_ALL & ~KEY_POS_SETATTR) |
 				    KEY_USR_VIEW | KEY_USR_READ),
-				   KEY_ALLOC_NOT_IN_QUOTA | KEY_ALLOC_TRUSTED);
+				   KEY_ALLOC_NOT_IN_QUOTA);
 	if (IS_ERR(key)) {
 		rc = PTR_ERR(key);
 		pr_err("Problem loading X.509 certificate (%d): %s\n",
diff --git a/security/integrity/evm/evm_main.c b/security/integrity/evm/evm_main.c
index 1334e02ae8f4..3d145a3ffccf 100644
--- a/security/integrity/evm/evm_main.c
+++ b/security/integrity/evm/evm_main.c
@@ -23,6 +23,7 @@
 #include <linux/integrity.h>
 #include <linux/evm.h>
 #include <crypto/hash.h>
+#include <crypto/algapi.h>
 #include "evm.h"
 
 int evm_initialized;
@@ -148,7 +149,7 @@ static enum integrity_status evm_verify_hmac(struct dentry *dentry,
 				   xattr_value_len, calc.digest);
 		if (rc)
 			break;
-		rc = memcmp(xattr_data->digest, calc.digest,
+		rc = crypto_memneq(xattr_data->digest, calc.digest,
 			    sizeof(calc.digest));
 		if (rc)
 			rc = -EINVAL;
diff --git a/sound/core/compress_offload.c b/sound/core/compress_offload.c
index b123c42e7dc8..b554d7f9e3be 100644
--- a/sound/core/compress_offload.c
+++ b/sound/core/compress_offload.c
@@ -44,6 +44,13 @@
 #include <sound/compress_offload.h>
 #include <sound/compress_driver.h>
 
+/* struct snd_compr_codec_caps overflows the ioctl bit size for some
+ * architectures, so we need to disable the relevant ioctls.
+ */
+#if _IOC_SIZEBITS < 14
+#define COMPR_CODEC_CAPS_OVERFLOW
+#endif
+
 /* TODO:
  * - add substream support for multiple devices in case of
  *	SND_DYNAMIC_MINORS is not used
@@ -438,6 +445,7 @@ out:
 	return retval;
 }
 
+#ifndef COMPR_CODEC_CAPS_OVERFLOW
 static int
 snd_compr_get_codec_caps(struct snd_compr_stream *stream, unsigned long arg)
 {
@@ -461,6 +469,7 @@ out:
 	kfree(caps);
 	return retval;
 }
+#endif /* !COMPR_CODEC_CAPS_OVERFLOW */
 
 /* revisit this with snd_pcm_preallocate_xxx */
 static int snd_compr_allocate_buffer(struct snd_compr_stream *stream,
@@ -799,9 +808,11 @@ static long snd_compr_ioctl(struct file *f, unsigned int cmd, unsigned long arg)
 	case _IOC_NR(SNDRV_COMPRESS_GET_CAPS):
 		retval = snd_compr_get_caps(stream, arg);
 		break;
+#ifndef COMPR_CODEC_CAPS_OVERFLOW
 	case _IOC_NR(SNDRV_COMPRESS_GET_CODEC_CAPS):
 		retval = snd_compr_get_codec_caps(stream, arg);
 		break;
+#endif
 	case _IOC_NR(SNDRV_COMPRESS_SET_PARAMS):
 		retval = snd_compr_set_params(stream, arg);
 		break;
diff --git a/sound/core/oss/pcm_oss.c b/sound/core/oss/pcm_oss.c
index 58550cc93f28..33e72c809e50 100644
--- a/sound/core/oss/pcm_oss.c
+++ b/sound/core/oss/pcm_oss.c
@@ -834,7 +834,8 @@ static int choose_rate(struct snd_pcm_substream *substream,
 	return snd_pcm_hw_param_near(substream, params, SNDRV_PCM_HW_PARAM_RATE, best_rate, NULL);
 }
 
-static int snd_pcm_oss_change_params(struct snd_pcm_substream *substream)
+static int snd_pcm_oss_change_params(struct snd_pcm_substream *substream,
+				     bool trylock)
 {
 	struct snd_pcm_runtime *runtime = substream->runtime;
 	struct snd_pcm_hw_params *params, *sparams;
@@ -848,7 +849,10 @@ static int snd_pcm_oss_change_params(struct snd_pcm_substream *substream)
 	struct snd_mask sformat_mask;
 	struct snd_mask mask;
 
-	if (mutex_lock_interruptible(&runtime->oss.params_lock))
+	if (trylock) {
+		if (!(mutex_trylock(&runtime->oss.params_lock)))
+			return -EAGAIN;
+	} else if (mutex_lock_interruptible(&runtime->oss.params_lock))
 		return -EINTR;
 	sw_params = kmalloc(sizeof(*sw_params), GFP_KERNEL);
 	params = kmalloc(sizeof(*params), GFP_KERNEL);
@@ -1092,7 +1096,7 @@ static int snd_pcm_oss_get_active_substream(struct snd_pcm_oss_file *pcm_oss_fil
 		if (asubstream == NULL)
 			asubstream = substream;
 		if (substream->runtime->oss.params) {
-			err = snd_pcm_oss_change_params(substream);
+			err = snd_pcm_oss_change_params(substream, false);
 			if (err < 0)
 				return err;
 		}
@@ -1132,7 +1136,7 @@ static int snd_pcm_oss_make_ready(struct snd_pcm_substream *substream)
 		return 0;
 	runtime = substream->runtime;
 	if (runtime->oss.params) {
-		err = snd_pcm_oss_change_params(substream);
+		err = snd_pcm_oss_change_params(substream, false);
 		if (err < 0)
 			return err;
 	}
@@ -2163,7 +2167,7 @@ static int snd_pcm_oss_get_space(struct snd_pcm_oss_file *pcm_oss_file, int stre
 	runtime = substream->runtime;
 
 	if (runtime->oss.params &&
-	    (err = snd_pcm_oss_change_params(substream)) < 0)
+	    (err = snd_pcm_oss_change_params(substream, false)) < 0)
 		return err;
 
 	info.fragsize = runtime->oss.period_bytes;
@@ -2800,7 +2804,12 @@ static int snd_pcm_oss_mmap(struct file *file, struct vm_area_struct *area)
 		return -EIO;
 	
 	if (runtime->oss.params) {
-		if ((err = snd_pcm_oss_change_params(substream)) < 0)
+		/* use mutex_trylock() for params_lock for avoiding a deadlock
+		 * between mmap_sem and params_lock taken by
+		 * copy_from/to_user() in snd_pcm_oss_write/read()
+		 */
+		err = snd_pcm_oss_change_params(substream, true);
+		if (err < 0)
 			return err;
 	}
 #ifdef CONFIG_SND_PCM_OSS_PLUGINS
diff --git a/sound/core/rawmidi.c b/sound/core/rawmidi.c
index a7759846fbaa..795437b10082 100644
--- a/sound/core/rawmidi.c
+++ b/sound/core/rawmidi.c
@@ -942,31 +942,36 @@ static long snd_rawmidi_kernel_read1(struct snd_rawmidi_substream *substream,
 	unsigned long flags;
 	long result = 0, count1;
 	struct snd_rawmidi_runtime *runtime = substream->runtime;
+	unsigned long appl_ptr;
 
+	spin_lock_irqsave(&runtime->lock, flags);
 	while (count > 0 && runtime->avail) {
 		count1 = runtime->buffer_size - runtime->appl_ptr;
 		if (count1 > count)
 			count1 = count;
-		spin_lock_irqsave(&runtime->lock, flags);
 		if (count1 > (int)runtime->avail)
 			count1 = runtime->avail;
+
+		/* update runtime->appl_ptr before unlocking for userbuf */
+		appl_ptr = runtime->appl_ptr;
+		runtime->appl_ptr += count1;
+		runtime->appl_ptr %= runtime->buffer_size;
+		runtime->avail -= count1;
+
 		if (kernelbuf)
-			memcpy(kernelbuf + result, runtime->buffer + runtime->appl_ptr, count1);
+			memcpy(kernelbuf + result, runtime->buffer + appl_ptr, count1);
 		if (userbuf) {
 			spin_unlock_irqrestore(&runtime->lock, flags);
 			if (copy_to_user(userbuf + result,
-					 runtime->buffer + runtime->appl_ptr, count1)) {
+					 runtime->buffer + appl_ptr, count1)) {
 				return result > 0 ? result : -EFAULT;
 			}
 			spin_lock_irqsave(&runtime->lock, flags);
 		}
-		runtime->appl_ptr += count1;
-		runtime->appl_ptr %= runtime->buffer_size;
-		runtime->avail -= count1;
-		spin_unlock_irqrestore(&runtime->lock, flags);
 		result += count1;
 		count -= count1;
 	}
+	spin_unlock_irqrestore(&runtime->lock, flags);
 	return result;
 }
 
@@ -1055,23 +1060,16 @@ int snd_rawmidi_transmit_empty(struct snd_rawmidi_substream *substream)
 EXPORT_SYMBOL(snd_rawmidi_transmit_empty);
 
 /**
- * snd_rawmidi_transmit_peek - copy data from the internal buffer
+ * __snd_rawmidi_transmit_peek - copy data from the internal buffer
  * @substream: the rawmidi substream
  * @buffer: the buffer pointer
  * @count: data size to transfer
  *
- * Copies data from the internal output buffer to the given buffer.
- *
- * Call this in the interrupt handler when the midi output is ready,
- * and call snd_rawmidi_transmit_ack() after the transmission is
- * finished.
- *
- * Return: The size of copied data, or a negative error code on failure.
+ * This is a variant of snd_rawmidi_transmit_peek() without spinlock.
  */
-int snd_rawmidi_transmit_peek(struct snd_rawmidi_substream *substream,
+int __snd_rawmidi_transmit_peek(struct snd_rawmidi_substream *substream,
 			      unsigned char *buffer, int count)
 {
-	unsigned long flags;
 	int result, count1;
 	struct snd_rawmidi_runtime *runtime = substream->runtime;
 
@@ -1081,7 +1079,6 @@ int snd_rawmidi_transmit_peek(struct snd_rawmidi_substream *substream,
 		return -EINVAL;
 	}
 	result = 0;
-	spin_lock_irqsave(&runtime->lock, flags);
 	if (runtime->avail >= runtime->buffer_size) {
 		/* warning: lowlevel layer MUST trigger down the hardware */
 		goto __skip;
@@ -1106,25 +1103,47 @@ int snd_rawmidi_transmit_peek(struct snd_rawmidi_substream *substream,
 		}
 	}
       __skip:
+	return result;
+}
+EXPORT_SYMBOL(__snd_rawmidi_transmit_peek);
+
+/**
+ * snd_rawmidi_transmit_peek - copy data from the internal buffer
+ * @substream: the rawmidi substream
+ * @buffer: the buffer pointer
+ * @count: data size to transfer
+ *
+ * Copies data from the internal output buffer to the given buffer.
+ *
+ * Call this in the interrupt handler when the midi output is ready,
+ * and call snd_rawmidi_transmit_ack() after the transmission is
+ * finished.
+ *
+ * Return: The size of copied data, or a negative error code on failure.
+ */
+int snd_rawmidi_transmit_peek(struct snd_rawmidi_substream *substream,
+			      unsigned char *buffer, int count)
+{
+	struct snd_rawmidi_runtime *runtime = substream->runtime;
+	int result;
+	unsigned long flags;
+
+	spin_lock_irqsave(&runtime->lock, flags);
+	result = __snd_rawmidi_transmit_peek(substream, buffer, count);
 	spin_unlock_irqrestore(&runtime->lock, flags);
 	return result;
 }
 EXPORT_SYMBOL(snd_rawmidi_transmit_peek);
 
 /**
- * snd_rawmidi_transmit_ack - acknowledge the transmission
+ * __snd_rawmidi_transmit_ack - acknowledge the transmission
  * @substream: the rawmidi substream
  * @count: the transferred count
  *
- * Advances the hardware pointer for the internal output buffer with
- * the given size and updates the condition.
- * Call after the transmission is finished.
- *
- * Return: The advanced size if successful, or a negative error code on failure.
+ * This is a variant of __snd_rawmidi_transmit_ack() without spinlock.
  */
-int snd_rawmidi_transmit_ack(struct snd_rawmidi_substream *substream, int count)
+int __snd_rawmidi_transmit_ack(struct snd_rawmidi_substream *substream, int count)
 {
-	unsigned long flags;
 	struct snd_rawmidi_runtime *runtime = substream->runtime;
 
 	if (runtime->buffer == NULL) {
@@ -1132,7 +1151,6 @@ int snd_rawmidi_transmit_ack(struct snd_rawmidi_substream *substream, int count)
 			  "snd_rawmidi_transmit_ack: output is not active!!!\n");
 		return -EINVAL;
 	}
-	spin_lock_irqsave(&runtime->lock, flags);
 	snd_BUG_ON(runtime->avail + count > runtime->buffer_size);
 	runtime->hw_ptr += count;
 	runtime->hw_ptr %= runtime->buffer_size;
@@ -1142,9 +1160,32 @@ int snd_rawmidi_transmit_ack(struct snd_rawmidi_substream *substream, int count)
 		if (runtime->drain || snd_rawmidi_ready(substream))
 			wake_up(&runtime->sleep);
 	}
-	spin_unlock_irqrestore(&runtime->lock, flags);
 	return count;
 }
+EXPORT_SYMBOL(__snd_rawmidi_transmit_ack);
+
+/**
+ * snd_rawmidi_transmit_ack - acknowledge the transmission
+ * @substream: the rawmidi substream
+ * @count: the transferred count
+ *
+ * Advances the hardware pointer for the internal output buffer with
+ * the given size and updates the condition.
+ * Call after the transmission is finished.
+ *
+ * Return: The advanced size if successful, or a negative error code on failure.
+ */
+int snd_rawmidi_transmit_ack(struct snd_rawmidi_substream *substream, int count)
+{
+	struct snd_rawmidi_runtime *runtime = substream->runtime;
+	int result;
+	unsigned long flags;
+
+	spin_lock_irqsave(&runtime->lock, flags);
+	result = __snd_rawmidi_transmit_ack(substream, count);
+	spin_unlock_irqrestore(&runtime->lock, flags);
+	return result;
+}
 EXPORT_SYMBOL(snd_rawmidi_transmit_ack);
 
 /**
@@ -1160,12 +1201,22 @@ EXPORT_SYMBOL(snd_rawmidi_transmit_ack);
 int snd_rawmidi_transmit(struct snd_rawmidi_substream *substream,
 			 unsigned char *buffer, int count)
 {
+	struct snd_rawmidi_runtime *runtime = substream->runtime;
+	int result;
+	unsigned long flags;
+
+	spin_lock_irqsave(&runtime->lock, flags);
 	if (!substream->opened)
-		return -EBADFD;
-	count = snd_rawmidi_transmit_peek(substream, buffer, count);
-	if (count < 0)
-		return count;
-	return snd_rawmidi_transmit_ack(substream, count);
+		result = -EBADFD;
+	else {
+		count = __snd_rawmidi_transmit_peek(substream, buffer, count);
+		if (count <= 0)
+			result = count;
+		else
+			result = __snd_rawmidi_transmit_ack(substream, count);
+	}
+	spin_unlock_irqrestore(&runtime->lock, flags);
+	return result;
 }
 EXPORT_SYMBOL(snd_rawmidi_transmit);
 
@@ -1177,8 +1228,9 @@ static long snd_rawmidi_kernel_write1(struct snd_rawmidi_substream *substream,
 	unsigned long flags;
 	long count1, result;
 	struct snd_rawmidi_runtime *runtime = substream->runtime;
+	unsigned long appl_ptr;
 
-	if (snd_BUG_ON(!kernelbuf && !userbuf))
+	if (!kernelbuf && !userbuf)
 		return -EINVAL;
 	if (snd_BUG_ON(!runtime->buffer))
 		return -EINVAL;
@@ -1197,12 +1249,19 @@ static long snd_rawmidi_kernel_write1(struct snd_rawmidi_substream *substream,
 			count1 = count;
 		if (count1 > (long)runtime->avail)
 			count1 = runtime->avail;
+
+		/* update runtime->appl_ptr before unlocking for userbuf */
+		appl_ptr = runtime->appl_ptr;
+		runtime->appl_ptr += count1;
+		runtime->appl_ptr %= runtime->buffer_size;
+		runtime->avail -= count1;
+
 		if (kernelbuf)
-			memcpy(runtime->buffer + runtime->appl_ptr,
+			memcpy(runtime->buffer + appl_ptr,
 			       kernelbuf + result, count1);
 		else if (userbuf) {
 			spin_unlock_irqrestore(&runtime->lock, flags);
-			if (copy_from_user(runtime->buffer + runtime->appl_ptr,
+			if (copy_from_user(runtime->buffer + appl_ptr,
 					   userbuf + result, count1)) {
 				spin_lock_irqsave(&runtime->lock, flags);
 				result = result > 0 ? result : -EFAULT;
@@ -1210,9 +1269,6 @@ static long snd_rawmidi_kernel_write1(struct snd_rawmidi_substream *substream,
 			}
 			spin_lock_irqsave(&runtime->lock, flags);
 		}
-		runtime->appl_ptr += count1;
-		runtime->appl_ptr %= runtime->buffer_size;
-		runtime->avail -= count1;
 		result += count1;
 		count -= count1;
 	}
diff --git a/sound/core/seq/oss/seq_oss_init.c b/sound/core/seq/oss/seq_oss_init.c
index b1221b29728e..6779e82b46dd 100644
--- a/sound/core/seq/oss/seq_oss_init.c
+++ b/sound/core/seq/oss/seq_oss_init.c
@@ -202,7 +202,7 @@ snd_seq_oss_open(struct file *file, int level)
 
 	dp->index = i;
 	if (i >= SNDRV_SEQ_OSS_MAX_CLIENTS) {
-		pr_err("ALSA: seq_oss: too many applications\n");
+		pr_debug("ALSA: seq_oss: too many applications\n");
 		rc = -ENOMEM;
 		goto _error;
 	}
diff --git a/sound/core/seq/oss/seq_oss_synth.c b/sound/core/seq/oss/seq_oss_synth.c
index 0f3b38184fe5..b16dbef04174 100644
--- a/sound/core/seq/oss/seq_oss_synth.c
+++ b/sound/core/seq/oss/seq_oss_synth.c
@@ -308,7 +308,7 @@ snd_seq_oss_synth_cleanup(struct seq_oss_devinfo *dp)
 	struct seq_oss_synth *rec;
 	struct seq_oss_synthinfo *info;
 
-	if (snd_BUG_ON(dp->max_synthdev >= SNDRV_SEQ_OSS_MAX_SYNTH_DEVS))
+	if (snd_BUG_ON(dp->max_synthdev > SNDRV_SEQ_OSS_MAX_SYNTH_DEVS))
 		return;
 	for (i = 0; i < dp->max_synthdev; i++) {
 		info = &dp->synths[i];
diff --git a/sound/core/seq/seq_clientmgr.c b/sound/core/seq/seq_clientmgr.c
index 13cfa815732d..58e79e02f217 100644
--- a/sound/core/seq/seq_clientmgr.c
+++ b/sound/core/seq/seq_clientmgr.c
@@ -678,6 +678,9 @@ static int deliver_to_subscribers(struct snd_seq_client *client,
 	else
 		down_read(&grp->list_mutex);
 	list_for_each_entry(subs, &grp->list_head, src_list) {
+		/* both ports ready? */
+		if (atomic_read(&subs->ref_count) != 2)
+			continue;
 		event->dest = subs->info.dest;
 		if (subs->info.flags & SNDRV_SEQ_PORT_SUBS_TIMESTAMP)
 			/* convert time according to flag with subscription */
diff --git a/sound/core/seq/seq_ports.c b/sound/core/seq/seq_ports.c
index 55170a20ae72..921fb2bd8fad 100644
--- a/sound/core/seq/seq_ports.c
+++ b/sound/core/seq/seq_ports.c
@@ -173,10 +173,6 @@ struct snd_seq_client_port *snd_seq_create_port(struct snd_seq_client *client,
 }
 
 /* */
-enum group_type {
-	SRC_LIST, DEST_LIST
-};
-
 static int subscribe_port(struct snd_seq_client *client,
 			  struct snd_seq_client_port *port,
 			  struct snd_seq_port_subs_info *grp,
@@ -203,6 +199,20 @@ static struct snd_seq_client_port *get_client_port(struct snd_seq_addr *addr,
 	return NULL;
 }
 
+static void delete_and_unsubscribe_port(struct snd_seq_client *client,
+					struct snd_seq_client_port *port,
+					struct snd_seq_subscribers *subs,
+					bool is_src, bool ack);
+
+static inline struct snd_seq_subscribers *
+get_subscriber(struct list_head *p, bool is_src)
+{
+	if (is_src)
+		return list_entry(p, struct snd_seq_subscribers, src_list);
+	else
+		return list_entry(p, struct snd_seq_subscribers, dest_list);
+}
+
 /*
  * remove all subscribers on the list
  * this is called from port_delete, for each src and dest list.
@@ -210,7 +220,7 @@ static struct snd_seq_client_port *get_client_port(struct snd_seq_addr *addr,
 static void clear_subscriber_list(struct snd_seq_client *client,
 				  struct snd_seq_client_port *port,
 				  struct snd_seq_port_subs_info *grp,
-				  int grptype)
+				  int is_src)
 {
 	struct list_head *p, *n;
 
@@ -219,15 +229,13 @@ static void clear_subscriber_list(struct snd_seq_client *client,
 		struct snd_seq_client *c;
 		struct snd_seq_client_port *aport;
 
-		if (grptype == SRC_LIST) {
-			subs = list_entry(p, struct snd_seq_subscribers, src_list);
+		subs = get_subscriber(p, is_src);
+		if (is_src)
 			aport = get_client_port(&subs->info.dest, &c);
-		} else {
-			subs = list_entry(p, struct snd_seq_subscribers, dest_list);
+		else
 			aport = get_client_port(&subs->info.sender, &c);
-		}
-		list_del(p);
-		unsubscribe_port(client, port, grp, &subs->info, 0);
+		delete_and_unsubscribe_port(client, port, subs, is_src, false);
+
 		if (!aport) {
 			/* looks like the connected port is being deleted.
 			 * we decrease the counter, and when both ports are deleted
@@ -235,21 +243,14 @@ static void clear_subscriber_list(struct snd_seq_client *client,
 			 */
 			if (atomic_dec_and_test(&subs->ref_count))
 				kfree(subs);
-		} else {
-			/* ok we got the connected port */
-			struct snd_seq_port_subs_info *agrp;
-			agrp = (grptype == SRC_LIST) ? &aport->c_dest : &aport->c_src;
-			down_write(&agrp->list_mutex);
-			if (grptype == SRC_LIST)
-				list_del(&subs->dest_list);
-			else
-				list_del(&subs->src_list);
-			up_write(&agrp->list_mutex);
-			unsubscribe_port(c, aport, agrp, &subs->info, 1);
-			kfree(subs);
-			snd_seq_port_unlock(aport);
-			snd_seq_client_unlock(c);
+			continue;
 		}
+
+		/* ok we got the connected port */
+		delete_and_unsubscribe_port(c, aport, subs, !is_src, true);
+		kfree(subs);
+		snd_seq_port_unlock(aport);
+		snd_seq_client_unlock(c);
 	}
 }
 
@@ -262,8 +263,8 @@ static int port_delete(struct snd_seq_client *client,
 	snd_use_lock_sync(&port->use_lock); 
 
 	/* clear subscribers info */
-	clear_subscriber_list(client, port, &port->c_src, SRC_LIST);
-	clear_subscriber_list(client, port, &port->c_dest, DEST_LIST);
+	clear_subscriber_list(client, port, &port->c_src, true);
+	clear_subscriber_list(client, port, &port->c_dest, false);
 
 	if (port->private_free)
 		port->private_free(port->private_data);
@@ -479,85 +480,120 @@ static int match_subs_info(struct snd_seq_port_subscribe *r,
 	return 0;
 }
 
-
-/* connect two ports */
-int snd_seq_port_connect(struct snd_seq_client *connector,
-			 struct snd_seq_client *src_client,
-			 struct snd_seq_client_port *src_port,
-			 struct snd_seq_client *dest_client,
-			 struct snd_seq_client_port *dest_port,
-			 struct snd_seq_port_subscribe *info)
+static int check_and_subscribe_port(struct snd_seq_client *client,
+				    struct snd_seq_client_port *port,
+				    struct snd_seq_subscribers *subs,
+				    bool is_src, bool exclusive, bool ack)
 {
-	struct snd_seq_port_subs_info *src = &src_port->c_src;
-	struct snd_seq_port_subs_info *dest = &dest_port->c_dest;
-	struct snd_seq_subscribers *subs, *s;
-	int err, src_called = 0;
-	unsigned long flags;
-	int exclusive;
+	struct snd_seq_port_subs_info *grp;
+	struct list_head *p;
+	struct snd_seq_subscribers *s;
+	int err;
 
-	subs = kzalloc(sizeof(*subs), GFP_KERNEL);
-	if (! subs)
-		return -ENOMEM;
-
-	subs->info = *info;
-	atomic_set(&subs->ref_count, 2);
-
-	down_write(&src->list_mutex);
-	down_write_nested(&dest->list_mutex, SINGLE_DEPTH_NESTING);
-
-	exclusive = info->flags & SNDRV_SEQ_PORT_SUBS_EXCLUSIVE ? 1 : 0;
+	grp = is_src ? &port->c_src : &port->c_dest;
 	err = -EBUSY;
+	down_write(&grp->list_mutex);
 	if (exclusive) {
-		if (! list_empty(&src->list_head) || ! list_empty(&dest->list_head))
+		if (!list_empty(&grp->list_head))
 			goto __error;
 	} else {
-		if (src->exclusive || dest->exclusive)
+		if (grp->exclusive)
 			goto __error;
 		/* check whether already exists */
-		list_for_each_entry(s, &src->list_head, src_list) {
-			if (match_subs_info(info, &s->info))
-				goto __error;
-		}
-		list_for_each_entry(s, &dest->list_head, dest_list) {
-			if (match_subs_info(info, &s->info))
+		list_for_each(p, &grp->list_head) {
+			s = get_subscriber(p, is_src);
+			if (match_subs_info(&subs->info, &s->info))
 				goto __error;
 		}
 	}
 
-	if ((err = subscribe_port(src_client, src_port, src, info,
-				  connector->number != src_client->number)) < 0)
-		goto __error;
-	src_called = 1;
-
-	if ((err = subscribe_port(dest_client, dest_port, dest, info,
-				  connector->number != dest_client->number)) < 0)
+	err = subscribe_port(client, port, grp, &subs->info, ack);
+	if (err < 0) {
+		grp->exclusive = 0;
 		goto __error;
+	}
 
 	/* add to list */
-	write_lock_irqsave(&src->list_lock, flags);
-	// write_lock(&dest->list_lock); // no other lock yet
-	list_add_tail(&subs->src_list, &src->list_head);
-	list_add_tail(&subs->dest_list, &dest->list_head);
-	// write_unlock(&dest->list_lock); // no other lock yet
-	write_unlock_irqrestore(&src->list_lock, flags);
+	write_lock_irq(&grp->list_lock);
+	if (is_src)
+		list_add_tail(&subs->src_list, &grp->list_head);
+	else
+		list_add_tail(&subs->dest_list, &grp->list_head);
+	grp->exclusive = exclusive;
+	atomic_inc(&subs->ref_count);
+	write_unlock_irq(&grp->list_lock);
+	err = 0;
+
+ __error:
+	up_write(&grp->list_mutex);
+	return err;
+}
 
-	src->exclusive = dest->exclusive = exclusive;
+static void delete_and_unsubscribe_port(struct snd_seq_client *client,
+					struct snd_seq_client_port *port,
+					struct snd_seq_subscribers *subs,
+					bool is_src, bool ack)
+{
+	struct snd_seq_port_subs_info *grp;
+
+	grp = is_src ? &port->c_src : &port->c_dest;
+	down_write(&grp->list_mutex);
+	write_lock_irq(&grp->list_lock);
+	if (is_src)
+		list_del(&subs->src_list);
+	else
+		list_del(&subs->dest_list);
+	grp->exclusive = 0;
+	write_unlock_irq(&grp->list_lock);
+	up_write(&grp->list_mutex);
+
+	unsubscribe_port(client, port, grp, &subs->info, ack);
+}
+
+/* connect two ports */
+int snd_seq_port_connect(struct snd_seq_client *connector,
+			 struct snd_seq_client *src_client,
+			 struct snd_seq_client_port *src_port,
+			 struct snd_seq_client *dest_client,
+			 struct snd_seq_client_port *dest_port,
+			 struct snd_seq_port_subscribe *info)
+{
+	struct snd_seq_subscribers *subs;
+	bool exclusive;
+	int err;
+
+	subs = kzalloc(sizeof(*subs), GFP_KERNEL);
+	if (!subs)
+		return -ENOMEM;
+
+	subs->info = *info;
+	atomic_set(&subs->ref_count, 0);
+	INIT_LIST_HEAD(&subs->src_list);
+	INIT_LIST_HEAD(&subs->dest_list);
+
+	exclusive = !!(info->flags & SNDRV_SEQ_PORT_SUBS_EXCLUSIVE);
+
+	err = check_and_subscribe_port(src_client, src_port, subs, true,
+				       exclusive,
+				       connector->number != src_client->number);
+	if (err < 0)
+		goto error;
+	err = check_and_subscribe_port(dest_client, dest_port, subs, false,
+				       exclusive,
+				       connector->number != dest_client->number);
+	if (err < 0)
+		goto error_dest;
 
-	up_write(&dest->list_mutex);
-	up_write(&src->list_mutex);
 	return 0;
 
- __error:
-	if (src_called)
-		unsubscribe_port(src_client, src_port, src, info,
-				 connector->number != src_client->number);
+ error_dest:
+	delete_and_unsubscribe_port(src_client, src_port, subs, true,
+				    connector->number != src_client->number);
+ error:
 	kfree(subs);
-	up_write(&dest->list_mutex);
-	up_write(&src->list_mutex);
 	return err;
 }
 
-
 /* remove the connection */
 int snd_seq_port_disconnect(struct snd_seq_client *connector,
 			    struct snd_seq_client *src_client,
@@ -567,37 +603,28 @@ int snd_seq_port_disconnect(struct snd_seq_client *connector,
 			    struct snd_seq_port_subscribe *info)
 {
 	struct snd_seq_port_subs_info *src = &src_port->c_src;
-	struct snd_seq_port_subs_info *dest = &dest_port->c_dest;
 	struct snd_seq_subscribers *subs;
 	int err = -ENOENT;
-	unsigned long flags;
 
 	down_write(&src->list_mutex);
-	down_write_nested(&dest->list_mutex, SINGLE_DEPTH_NESTING);
-
 	/* look for the connection */
 	list_for_each_entry(subs, &src->list_head, src_list) {
 		if (match_subs_info(info, &subs->info)) {
-			write_lock_irqsave(&src->list_lock, flags);
-			// write_lock(&dest->list_lock);  // no lock yet
-			list_del(&subs->src_list);
-			list_del(&subs->dest_list);
-			// write_unlock(&dest->list_lock);
-			write_unlock_irqrestore(&src->list_lock, flags);
-			src->exclusive = dest->exclusive = 0;
-			unsubscribe_port(src_client, src_port, src, info,
-					 connector->number != src_client->number);
-			unsubscribe_port(dest_client, dest_port, dest, info,
-					 connector->number != dest_client->number);
-			kfree(subs);
+			atomic_dec(&subs->ref_count); /* mark as not ready */
 			err = 0;
 			break;
 		}
 	}
-
-	up_write(&dest->list_mutex);
 	up_write(&src->list_mutex);
-	return err;
+	if (err < 0)
+		return err;
+
+	delete_and_unsubscribe_port(src_client, src_port, subs, true,
+				    connector->number != src_client->number);
+	delete_and_unsubscribe_port(dest_client, dest_port, subs, false,
+				    connector->number != dest_client->number);
+	kfree(subs);
+	return 0;
 }
 
 
diff --git a/sound/core/seq/seq_timer.c b/sound/core/seq/seq_timer.c
index 82b220c769c1..293104926098 100644
--- a/sound/core/seq/seq_timer.c
+++ b/sound/core/seq/seq_timer.c
@@ -90,6 +90,9 @@ void snd_seq_timer_delete(struct snd_seq_timer **tmr)
 
 void snd_seq_timer_defaults(struct snd_seq_timer * tmr)
 {
+	unsigned long flags;
+
+	spin_lock_irqsave(&tmr->lock, flags);
 	/* setup defaults */
 	tmr->ppq = 96;		/* 96 PPQ */
 	tmr->tempo = 500000;	/* 120 BPM */
@@ -105,21 +108,25 @@ void snd_seq_timer_defaults(struct snd_seq_timer * tmr)
 	tmr->preferred_resolution = seq_default_timer_resolution;
 
 	tmr->skew = tmr->skew_base = SKEW_BASE;
+	spin_unlock_irqrestore(&tmr->lock, flags);
 }
 
-void snd_seq_timer_reset(struct snd_seq_timer * tmr)
+static void seq_timer_reset(struct snd_seq_timer *tmr)
 {
-	unsigned long flags;
-
-	spin_lock_irqsave(&tmr->lock, flags);
-
 	/* reset time & songposition */
 	tmr->cur_time.tv_sec = 0;
 	tmr->cur_time.tv_nsec = 0;
 
 	tmr->tick.cur_tick = 0;
 	tmr->tick.fraction = 0;
+}
+
+void snd_seq_timer_reset(struct snd_seq_timer *tmr)
+{
+	unsigned long flags;
 
+	spin_lock_irqsave(&tmr->lock, flags);
+	seq_timer_reset(tmr);
 	spin_unlock_irqrestore(&tmr->lock, flags);
 }
 
@@ -138,8 +145,11 @@ static void snd_seq_timer_interrupt(struct snd_timer_instance *timeri,
 	tmr = q->timer;
 	if (tmr == NULL)
 		return;
-	if (!tmr->running)
+	spin_lock_irqsave(&tmr->lock, flags);
+	if (!tmr->running) {
+		spin_unlock_irqrestore(&tmr->lock, flags);
 		return;
+	}
 
 	resolution *= ticks;
 	if (tmr->skew != tmr->skew_base) {
@@ -148,8 +158,6 @@ static void snd_seq_timer_interrupt(struct snd_timer_instance *timeri,
 			(((resolution & 0xffff) * tmr->skew) >> 16);
 	}
 
-	spin_lock_irqsave(&tmr->lock, flags);
-
 	/* update timer */
 	snd_seq_inc_time_nsec(&tmr->cur_time, resolution);
 
@@ -296,26 +304,30 @@ int snd_seq_timer_open(struct snd_seq_queue *q)
 	t->callback = snd_seq_timer_interrupt;
 	t->callback_data = q;
 	t->flags |= SNDRV_TIMER_IFLG_AUTO;
+	spin_lock_irq(&tmr->lock);
 	tmr->timeri = t;
+	spin_unlock_irq(&tmr->lock);
 	return 0;
 }
 
 int snd_seq_timer_close(struct snd_seq_queue *q)
 {
 	struct snd_seq_timer *tmr;
+	struct snd_timer_instance *t;
 	
 	tmr = q->timer;
 	if (snd_BUG_ON(!tmr))
 		return -EINVAL;
-	if (tmr->timeri) {
-		snd_timer_stop(tmr->timeri);
-		snd_timer_close(tmr->timeri);
-		tmr->timeri = NULL;
-	}
+	spin_lock_irq(&tmr->lock);
+	t = tmr->timeri;
+	tmr->timeri = NULL;
+	spin_unlock_irq(&tmr->lock);
+	if (t)
+		snd_timer_close(t);
 	return 0;
 }
 
-int snd_seq_timer_stop(struct snd_seq_timer * tmr)
+static int seq_timer_stop(struct snd_seq_timer *tmr)
 {
 	if (! tmr->timeri)
 		return -EINVAL;
@@ -326,6 +338,17 @@ int snd_seq_timer_stop(struct snd_seq_timer * tmr)
 	return 0;
 }
 
+int snd_seq_timer_stop(struct snd_seq_timer *tmr)
+{
+	unsigned long flags;
+	int err;
+
+	spin_lock_irqsave(&tmr->lock, flags);
+	err = seq_timer_stop(tmr);
+	spin_unlock_irqrestore(&tmr->lock, flags);
+	return err;
+}
+
 static int initialize_timer(struct snd_seq_timer *tmr)
 {
 	struct snd_timer *t;
@@ -358,13 +381,13 @@ static int initialize_timer(struct snd_seq_timer *tmr)
 	return 0;
 }
 
-int snd_seq_timer_start(struct snd_seq_timer * tmr)
+static int seq_timer_start(struct snd_seq_timer *tmr)
 {
 	if (! tmr->timeri)
 		return -EINVAL;
 	if (tmr->running)
-		snd_seq_timer_stop(tmr);
-	snd_seq_timer_reset(tmr);
+		seq_timer_stop(tmr);
+	seq_timer_reset(tmr);
 	if (initialize_timer(tmr) < 0)
 		return -EINVAL;
 	snd_timer_start(tmr->timeri, tmr->ticks);
@@ -373,14 +396,25 @@ int snd_seq_timer_start(struct snd_seq_timer * tmr)
 	return 0;
 }
 
-int snd_seq_timer_continue(struct snd_seq_timer * tmr)
+int snd_seq_timer_start(struct snd_seq_timer *tmr)
+{
+	unsigned long flags;
+	int err;
+
+	spin_lock_irqsave(&tmr->lock, flags);
+	err = seq_timer_start(tmr);
+	spin_unlock_irqrestore(&tmr->lock, flags);
+	return err;
+}
+
+static int seq_timer_continue(struct snd_seq_timer *tmr)
 {
 	if (! tmr->timeri)
 		return -EINVAL;
 	if (tmr->running)
 		return -EBUSY;
 	if (! tmr->initialized) {
-		snd_seq_timer_reset(tmr);
+		seq_timer_reset(tmr);
 		if (initialize_timer(tmr) < 0)
 			return -EINVAL;
 	}
@@ -390,11 +424,24 @@ int snd_seq_timer_continue(struct snd_seq_timer * tmr)
 	return 0;
 }
 
+int snd_seq_timer_continue(struct snd_seq_timer *tmr)
+{
+	unsigned long flags;
+	int err;
+
+	spin_lock_irqsave(&tmr->lock, flags);
+	err = seq_timer_continue(tmr);
+	spin_unlock_irqrestore(&tmr->lock, flags);
+	return err;
+}
+
 /* return current 'real' time. use timeofday() to get better granularity. */
 snd_seq_real_time_t snd_seq_timer_get_cur_time(struct snd_seq_timer *tmr)
 {
 	snd_seq_real_time_t cur_time;
+	unsigned long flags;
 
+	spin_lock_irqsave(&tmr->lock, flags);
 	cur_time = tmr->cur_time;
 	if (tmr->running) { 
 		struct timeval tm;
@@ -410,7 +457,7 @@ snd_seq_real_time_t snd_seq_timer_get_cur_time(struct snd_seq_timer *tmr)
 		}
 		snd_seq_sanity_real_time(&cur_time);
 	}
-                
+	spin_unlock_irqrestore(&tmr->lock, flags);
 	return cur_time;	
 }
 
diff --git a/sound/core/seq/seq_virmidi.c b/sound/core/seq/seq_virmidi.c
index 56e0f4cd3f82..81134e067184 100644
--- a/sound/core/seq/seq_virmidi.c
+++ b/sound/core/seq/seq_virmidi.c
@@ -155,21 +155,26 @@ static void snd_virmidi_output_trigger(struct snd_rawmidi_substream *substream,
 	struct snd_virmidi *vmidi = substream->runtime->private_data;
 	int count, res;
 	unsigned char buf[32], *pbuf;
+	unsigned long flags;
 
 	if (up) {
 		vmidi->trigger = 1;
 		if (vmidi->seq_mode == SNDRV_VIRMIDI_SEQ_DISPATCH &&
 		    !(vmidi->rdev->flags & SNDRV_VIRMIDI_SUBSCRIBE)) {
-			snd_rawmidi_transmit_ack(substream, substream->runtime->buffer_size - substream->runtime->avail);
-			return;		/* ignored */
+			while (snd_rawmidi_transmit(substream, buf,
+						    sizeof(buf)) > 0) {
+				/* ignored */
+			}
+			return;
 		}
 		if (vmidi->event.type != SNDRV_SEQ_EVENT_NONE) {
 			if (snd_seq_kernel_client_dispatch(vmidi->client, &vmidi->event, in_atomic(), 0) < 0)
 				return;
 			vmidi->event.type = SNDRV_SEQ_EVENT_NONE;
 		}
+		spin_lock_irqsave(&substream->runtime->lock, flags);
 		while (1) {
-			count = snd_rawmidi_transmit_peek(substream, buf, sizeof(buf));
+			count = __snd_rawmidi_transmit_peek(substream, buf, sizeof(buf));
 			if (count <= 0)
 				break;
 			pbuf = buf;
@@ -179,16 +184,18 @@ static void snd_virmidi_output_trigger(struct snd_rawmidi_substream *substream,
 					snd_midi_event_reset_encode(vmidi->parser);
 					continue;
 				}
-				snd_rawmidi_transmit_ack(substream, res);
+				__snd_rawmidi_transmit_ack(substream, res);
 				pbuf += res;
 				count -= res;
 				if (vmidi->event.type != SNDRV_SEQ_EVENT_NONE) {
 					if (snd_seq_kernel_client_dispatch(vmidi->client, &vmidi->event, in_atomic(), 0) < 0)
-						return;
+						goto out;
 					vmidi->event.type = SNDRV_SEQ_EVENT_NONE;
 				}
 			}
 		}
+	out:
+		spin_unlock_irqrestore(&substream->runtime->lock, flags);
 	} else {
 		vmidi->trigger = 0;
 	}
@@ -254,9 +261,13 @@ static int snd_virmidi_output_open(struct snd_rawmidi_substream *substream)
  */
 static int snd_virmidi_input_close(struct snd_rawmidi_substream *substream)
 {
+	struct snd_virmidi_dev *rdev = substream->rmidi->private_data;
 	struct snd_virmidi *vmidi = substream->runtime->private_data;
-	snd_midi_event_free(vmidi->parser);
+
+	write_lock_irq(&rdev->filelist_lock);
 	list_del(&vmidi->list);
+	write_unlock_irq(&rdev->filelist_lock);
+	snd_midi_event_free(vmidi->parser);
 	substream->runtime->private_data = NULL;
 	kfree(vmidi);
 	return 0;
diff --git a/sound/core/timer.c b/sound/core/timer.c
index 0a049c4578f1..f24c9fccf008 100644
--- a/sound/core/timer.c
+++ b/sound/core/timer.c
@@ -305,8 +305,7 @@ int snd_timer_open(struct snd_timer_instance **ti,
 	return 0;
 }
 
-static int _snd_timer_stop(struct snd_timer_instance *timeri,
-			   int keep_flag, int event);
+static int _snd_timer_stop(struct snd_timer_instance *timeri, int event);
 
 /*
  * close a timer instance
@@ -348,7 +347,7 @@ int snd_timer_close(struct snd_timer_instance *timeri)
 		spin_unlock_irq(&timer->lock);
 		mutex_lock(&register_mutex);
 		list_del(&timeri->open_list);
-		if (timer && list_empty(&timer->open_list_head) &&
+		if (list_empty(&timer->open_list_head) &&
 		    timer->hw.close)
 			timer->hw.close(timer);
 		/* remove slave links */
@@ -423,7 +422,7 @@ static void snd_timer_notify1(struct snd_timer_instance *ti, int event)
 	spin_lock_irqsave(&timer->lock, flags);
 	list_for_each_entry(ts, &ti->slave_active_head, active_list)
 		if (ts->ccallback)
-			ts->ccallback(ti, event + 100, &tstamp, resolution);
+			ts->ccallback(ts, event + 100, &tstamp, resolution);
 	spin_unlock_irqrestore(&timer->lock, flags);
 }
 
@@ -452,6 +451,10 @@ static int snd_timer_start_slave(struct snd_timer_instance *timeri)
 	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->master && timeri->timer) {
 		spin_lock(&timeri->timer->lock);
@@ -476,7 +479,8 @@ int snd_timer_start(struct snd_timer_instance *timeri, unsigned int ticks)
 		return -EINVAL;
 	if (timeri->flags & SNDRV_TIMER_IFLG_SLAVE) {
 		result = snd_timer_start_slave(timeri);
-		snd_timer_notify1(timeri, SNDRV_TIMER_EVENT_START);
+		if (result >= 0)
+			snd_timer_notify1(timeri, SNDRV_TIMER_EVENT_START);
 		return result;
 	}
 	timer = timeri->timer;
@@ -485,16 +489,22 @@ int snd_timer_start(struct snd_timer_instance *timeri, unsigned int ticks)
 	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);
-	snd_timer_notify1(timeri, SNDRV_TIMER_EVENT_START);
+	if (result >= 0)
+		snd_timer_notify1(timeri, SNDRV_TIMER_EVENT_START);
 	return result;
 }
 
-static int _snd_timer_stop(struct snd_timer_instance * timeri,
-			   int keep_flag, int event)
+static int _snd_timer_stop(struct snd_timer_instance *timeri, int event)
 {
 	struct snd_timer *timer;
 	unsigned long flags;
@@ -503,19 +513,30 @@ static int _snd_timer_stop(struct snd_timer_instance * timeri,
 		return -ENXIO;
 
 	if (timeri->flags & SNDRV_TIMER_IFLG_SLAVE) {
-		if (!keep_flag) {
-			spin_lock_irqsave(&slave_active_lock, flags);
-			timeri->flags &= ~SNDRV_TIMER_IFLG_RUNNING;
-			list_del_init(&timeri->ack_list);
-			list_del_init(&timeri->active_list);
+		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;
+	}
 	list_del_init(&timeri->ack_list);
 	list_del_init(&timeri->active_list);
 	if (timer->card && timer->card->shutdown) {
@@ -534,9 +555,7 @@ static int _snd_timer_stop(struct snd_timer_instance * timeri,
 			}
 		}
 	}
-	if (!keep_flag)
-		timeri->flags &=
-			~(SNDRV_TIMER_IFLG_RUNNING | SNDRV_TIMER_IFLG_START);
+	timeri->flags &= ~(SNDRV_TIMER_IFLG_RUNNING | SNDRV_TIMER_IFLG_START);
 	spin_unlock_irqrestore(&timer->lock, flags);
       __end:
 	if (event != SNDRV_TIMER_EVENT_RESOLUTION)
@@ -555,7 +574,7 @@ int snd_timer_stop(struct snd_timer_instance *timeri)
 	unsigned long flags;
 	int err;
 
-	err = _snd_timer_stop(timeri, 0, SNDRV_TIMER_EVENT_STOP);
+	err = _snd_timer_stop(timeri, SNDRV_TIMER_EVENT_STOP);
 	if (err < 0)
 		return err;
 	timer = timeri->timer;
@@ -587,10 +606,15 @@ int snd_timer_continue(struct snd_timer_instance *timeri)
 	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;
@@ -601,7 +625,7 @@ int snd_timer_continue(struct snd_timer_instance *timeri)
  */
 int snd_timer_pause(struct snd_timer_instance * timeri)
 {
-	return _snd_timer_stop(timeri, 0, SNDRV_TIMER_EVENT_PAUSE);
+	return _snd_timer_stop(timeri, SNDRV_TIMER_EVENT_PAUSE);
 }
 
 /*
@@ -724,8 +748,8 @@ void snd_timer_interrupt(struct snd_timer * timer, unsigned long ticks_left)
 			ti->cticks = ti->ticks;
 		} else {
 			ti->flags &= ~SNDRV_TIMER_IFLG_RUNNING;
-			if (--timer->running)
-				list_del_init(&ti->active_list);
+			--timer->running;
+			list_del_init(&ti->active_list);
 		}
 		if ((timer->hw.flags & SNDRV_TIMER_HW_TASKLET) ||
 		    (ti->flags & SNDRV_TIMER_IFLG_FAST))
@@ -1900,6 +1924,7 @@ static ssize_t snd_timer_user_read(struct file *file, char __user *buffer,
 {
 	struct snd_timer_user *tu;
 	long result = 0, unit;
+	int qhead;
 	int err = 0;
 
 	tu = file->private_data;
@@ -1911,7 +1936,7 @@ static ssize_t snd_timer_user_read(struct file *file, char __user *buffer,
 
 			if ((file->f_flags & O_NONBLOCK) != 0 || result > 0) {
 				err = -EAGAIN;
-				break;
+				goto _error;
 			}
 
 			set_current_state(TASK_INTERRUPTIBLE);
@@ -1926,42 +1951,37 @@ static ssize_t snd_timer_user_read(struct file *file, char __user *buffer,
 
 			if (tu->disconnected) {
 				err = -ENODEV;
-				break;
+				goto _error;
 			}
 			if (signal_pending(current)) {
 				err = -ERESTARTSYS;
-				break;
+				goto _error;
 			}
 		}
 
+		qhead = tu->qhead++;
+		tu->qhead %= tu->queue_size;
 		spin_unlock_irq(&tu->qlock);
-		if (err < 0)
-			goto _error;
 
 		if (tu->tread) {
-			if (copy_to_user(buffer, &tu->tqueue[tu->qhead++],
-					 sizeof(struct snd_timer_tread))) {
+			if (copy_to_user(buffer, &tu->tqueue[qhead],
+					 sizeof(struct snd_timer_tread)))
 				err = -EFAULT;
-				goto _error;
-			}
 		} else {
-			if (copy_to_user(buffer, &tu->queue[tu->qhead++],
-					 sizeof(struct snd_timer_read))) {
+			if (copy_to_user(buffer, &tu->queue[qhead],
+					 sizeof(struct snd_timer_read)))
 				err = -EFAULT;
-				goto _error;
-			}
 		}
 
-		tu->qhead %= tu->queue_size;
-
-		result += unit;
-		buffer += unit;
-
 		spin_lock_irq(&tu->qlock);
 		tu->qused--;
+		if (err < 0)
+			goto _error;
+		result += unit;
+		buffer += unit;
 	}
-	spin_unlock_irq(&tu->qlock);
  _error:
+	spin_unlock_irq(&tu->qlock);
 	return result > 0 ? result : err;
 }
 
diff --git a/sound/drivers/dummy.c b/sound/drivers/dummy.c
index 016e451ed506..a9f7a75702d2 100644
--- a/sound/drivers/dummy.c
+++ b/sound/drivers/dummy.c
@@ -109,6 +109,9 @@ struct dummy_timer_ops {
 	snd_pcm_uframes_t (*pointer)(struct snd_pcm_substream *);
 };
 
+#define get_dummy_ops(substream) \
+	(*(const struct dummy_timer_ops **)(substream)->runtime->private_data)
+
 struct dummy_model {
 	const char *name;
 	int (*playback_constraints)(struct snd_pcm_runtime *runtime);
@@ -137,7 +140,6 @@ struct snd_dummy {
 	int iobox;
 	struct snd_kcontrol *cd_volume_ctl;
 	struct snd_kcontrol *cd_switch_ctl;
-	const struct dummy_timer_ops *timer_ops;
 };
 
 /*
@@ -231,6 +233,8 @@ static struct dummy_model *dummy_models[] = {
  */
 
 struct dummy_systimer_pcm {
+	/* ops must be the first item */
+	const struct dummy_timer_ops *timer_ops;
 	spinlock_t lock;
 	struct timer_list timer;
 	unsigned long base_time;
@@ -366,6 +370,8 @@ static struct dummy_timer_ops dummy_systimer_ops = {
  */
 
 struct dummy_hrtimer_pcm {
+	/* ops must be the first item */
+	const struct dummy_timer_ops *timer_ops;
 	ktime_t base_time;
 	ktime_t period_time;
 	atomic_t running;
@@ -492,31 +498,25 @@ static struct dummy_timer_ops dummy_hrtimer_ops = {
 
 static int dummy_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
 {
-	struct snd_dummy *dummy = snd_pcm_substream_chip(substream);
-
 	switch (cmd) {
 	case SNDRV_PCM_TRIGGER_START:
 	case SNDRV_PCM_TRIGGER_RESUME:
-		return dummy->timer_ops->start(substream);
+		return get_dummy_ops(substream)->start(substream);
 	case SNDRV_PCM_TRIGGER_STOP:
 	case SNDRV_PCM_TRIGGER_SUSPEND:
-		return dummy->timer_ops->stop(substream);
+		return get_dummy_ops(substream)->stop(substream);
 	}
 	return -EINVAL;
 }
 
 static int dummy_pcm_prepare(struct snd_pcm_substream *substream)
 {
-	struct snd_dummy *dummy = snd_pcm_substream_chip(substream);
-
-	return dummy->timer_ops->prepare(substream);
+	return get_dummy_ops(substream)->prepare(substream);
 }
 
 static snd_pcm_uframes_t dummy_pcm_pointer(struct snd_pcm_substream *substream)
 {
-	struct snd_dummy *dummy = snd_pcm_substream_chip(substream);
-
-	return dummy->timer_ops->pointer(substream);
+	return get_dummy_ops(substream)->pointer(substream);
 }
 
 static struct snd_pcm_hardware dummy_pcm_hardware = {
@@ -562,17 +562,19 @@ static int dummy_pcm_open(struct snd_pcm_substream *substream)
 	struct snd_dummy *dummy = snd_pcm_substream_chip(substream);
 	struct dummy_model *model = dummy->model;
 	struct snd_pcm_runtime *runtime = substream->runtime;
+	const struct dummy_timer_ops *ops;
 	int err;
 
-	dummy->timer_ops = &dummy_systimer_ops;
+	ops = &dummy_systimer_ops;
 #ifdef CONFIG_HIGH_RES_TIMERS
 	if (hrtimer)
-		dummy->timer_ops = &dummy_hrtimer_ops;
+		ops = &dummy_hrtimer_ops;
 #endif
 
-	err = dummy->timer_ops->create(substream);
+	err = ops->create(substream);
 	if (err < 0)
 		return err;
+	get_dummy_ops(substream) = ops;
 
 	runtime->hw = dummy->pcm_hw;
 	if (substream->pcm->device & 1) {
@@ -594,7 +596,7 @@ static int dummy_pcm_open(struct snd_pcm_substream *substream)
 			err = model->capture_constraints(substream->runtime);
 	}
 	if (err < 0) {
-		dummy->timer_ops->free(substream);
+		get_dummy_ops(substream)->free(substream);
 		return err;
 	}
 	return 0;
@@ -602,8 +604,7 @@ static int dummy_pcm_open(struct snd_pcm_substream *substream)
 
 static int dummy_pcm_close(struct snd_pcm_substream *substream)
 {
-	struct snd_dummy *dummy = snd_pcm_substream_chip(substream);
-	dummy->timer_ops->free(substream);
+	get_dummy_ops(substream)->free(substream);
 	return 0;
 }
 
diff --git a/sound/firewire/bebob/bebob_stream.c b/sound/firewire/bebob/bebob_stream.c
index 5be5242e1ed8..7fdf34e80d5e 100644
--- a/sound/firewire/bebob/bebob_stream.c
+++ b/sound/firewire/bebob/bebob_stream.c
@@ -47,14 +47,16 @@ static const unsigned int bridgeco_freq_table[] = {
 	[6] = 0x07,
 };
 
-static unsigned int
-get_formation_index(unsigned int rate)
+static int
+get_formation_index(unsigned int rate, unsigned int *index)
 {
 	unsigned int i;
 
 	for (i = 0; i < ARRAY_SIZE(snd_bebob_rate_table); i++) {
-		if (snd_bebob_rate_table[i] == rate)
-			return i;
+		if (snd_bebob_rate_table[i] == rate) {
+			*index = i;
+			return 0;
+		}
 	}
 	return -EINVAL;
 }
@@ -424,7 +426,9 @@ make_both_connections(struct snd_bebob *bebob, unsigned int rate)
 		goto end;
 
 	/* confirm params for both streams */
-	index = get_formation_index(rate);
+	err = get_formation_index(rate, &index);
+	if (err < 0)
+		goto end;
 	pcm_channels = bebob->tx_stream_formations[index].pcm;
 	midi_channels = bebob->tx_stream_formations[index].midi;
 	amdtp_stream_set_parameters(&bebob->tx_stream,
diff --git a/sound/pci/hda/hda_generic.c b/sound/pci/hda/hda_generic.c
index 24f91114a32c..98fe629c1f86 100644
--- a/sound/pci/hda/hda_generic.c
+++ b/sound/pci/hda/hda_generic.c
@@ -771,9 +771,6 @@ static void activate_amp(struct hda_codec *codec, hda_nid_t nid, int dir,
 	unsigned int caps;
 	unsigned int mask, val;
 
-	if (!enable && is_active_nid(codec, nid, dir, idx_to_check))
-		return;
-
 	caps = query_amp_caps(codec, nid, dir);
 	val = get_amp_val_to_activate(codec, nid, dir, caps, enable);
 	mask = get_amp_mask_to_modify(codec, nid, dir, idx_to_check, caps);
@@ -784,12 +781,22 @@ static void activate_amp(struct hda_codec *codec, hda_nid_t nid, int dir,
 	update_amp(codec, nid, dir, idx, mask, val);
 }
 
+static void check_and_activate_amp(struct hda_codec *codec, hda_nid_t nid,
+				   int dir, int idx, int idx_to_check,
+				   bool enable)
+{
+	/* check whether the given amp is still used by others */
+	if (!enable && is_active_nid(codec, nid, dir, idx_to_check))
+		return;
+	activate_amp(codec, nid, dir, idx, idx_to_check, enable);
+}
+
 static void activate_amp_out(struct hda_codec *codec, struct nid_path *path,
 			     int i, bool enable)
 {
 	hda_nid_t nid = path->path[i];
 	init_amp(codec, nid, HDA_OUTPUT, 0);
-	activate_amp(codec, nid, HDA_OUTPUT, 0, 0, enable);
+	check_and_activate_amp(codec, nid, HDA_OUTPUT, 0, 0, enable);
 }
 
 static void activate_amp_in(struct hda_codec *codec, struct nid_path *path,
@@ -817,9 +824,16 @@ static void activate_amp_in(struct hda_codec *codec, struct nid_path *path,
 	 * when aa-mixer is available, we need to enable the path as well
 	 */
 	for (n = 0; n < nums; n++) {
-		if (n != idx && (!add_aamix || conn[n] != spec->mixer_merge_nid))
-			continue;
-		activate_amp(codec, nid, HDA_INPUT, n, idx, enable);
+		if (n != idx) {
+			if (conn[n] != spec->mixer_merge_nid)
+				continue;
+			/* when aamix is disabled, force to off */
+			if (!add_aamix) {
+				activate_amp(codec, nid, HDA_INPUT, n, n, false);
+				continue;
+			}
+		}
+		check_and_activate_amp(codec, nid, HDA_INPUT, n, idx, enable);
 	}
 }
 
@@ -1580,6 +1594,12 @@ static bool map_singles(struct hda_codec *codec, int outs,
 	return found;
 }
 
+static inline bool has_aamix_out_paths(struct hda_gen_spec *spec)
+{
+	return spec->aamix_out_paths[0] || spec->aamix_out_paths[1] ||
+		spec->aamix_out_paths[2];
+}
+
 /* create a new path including aamix if available, and return its index */
 static int check_aamix_out_path(struct hda_codec *codec, int path_idx)
 {
@@ -2422,25 +2442,51 @@ static void update_aamix_paths(struct hda_codec *codec, bool do_mix,
 	}
 }
 
+/* re-initialize the output paths; only called from loopback_mixing_put() */
+static void update_output_paths(struct hda_codec *codec, int num_outs,
+				const int *paths)
+{
+	struct hda_gen_spec *spec = codec->spec;
+	struct nid_path *path;
+	int i;
+
+	for (i = 0; i < num_outs; i++) {
+		path = snd_hda_get_path_from_idx(codec, paths[i]);
+		if (path)
+			snd_hda_activate_path(codec, path, path->active,
+					      spec->aamix_mode);
+	}
+}
+
 static int loopback_mixing_put(struct snd_kcontrol *kcontrol,
 			       struct snd_ctl_elem_value *ucontrol)
 {
 	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 	struct hda_gen_spec *spec = codec->spec;
+	const struct auto_pin_cfg *cfg = &spec->autocfg;
 	unsigned int val = ucontrol->value.enumerated.item[0];
 
 	if (val == spec->aamix_mode)
 		return 0;
 	spec->aamix_mode = val;
-	update_aamix_paths(codec, val, spec->out_paths[0],
-			   spec->aamix_out_paths[0],
-			   spec->autocfg.line_out_type);
-	update_aamix_paths(codec, val, spec->hp_paths[0],
-			   spec->aamix_out_paths[1],
-			   AUTO_PIN_HP_OUT);
-	update_aamix_paths(codec, val, spec->speaker_paths[0],
-			   spec->aamix_out_paths[2],
-			   AUTO_PIN_SPEAKER_OUT);
+	if (has_aamix_out_paths(spec)) {
+		update_aamix_paths(codec, val, spec->out_paths[0],
+				   spec->aamix_out_paths[0],
+				   cfg->line_out_type);
+		update_aamix_paths(codec, val, spec->hp_paths[0],
+				   spec->aamix_out_paths[1],
+				   AUTO_PIN_HP_OUT);
+		update_aamix_paths(codec, val, spec->speaker_paths[0],
+				   spec->aamix_out_paths[2],
+				   AUTO_PIN_SPEAKER_OUT);
+	} else {
+		update_output_paths(codec, cfg->line_outs, spec->out_paths);
+		if (cfg->line_out_type != AUTO_PIN_HP_OUT)
+			update_output_paths(codec, cfg->hp_outs, spec->hp_paths);
+		if (cfg->line_out_type != AUTO_PIN_SPEAKER_OUT)
+			update_output_paths(codec, cfg->speaker_outs,
+					    spec->speaker_paths);
+	}
 	return 1;
 }
 
@@ -2458,12 +2504,13 @@ static int create_loopback_mixing_ctl(struct hda_codec *codec)
 
 	if (!spec->mixer_nid)
 		return 0;
-	if (!(spec->aamix_out_paths[0] || spec->aamix_out_paths[1] ||
-	      spec->aamix_out_paths[2]))
-		return 0;
 	if (!snd_hda_gen_add_kctl(spec, NULL, &loopback_mixing_enum))
 		return -ENOMEM;
 	spec->have_aamix_ctl = 1;
+	/* if no explicit aamix path is present (e.g. for Realtek codecs),
+	 * enable aamix as default -- just for compatibility
+	 */
+	spec->aamix_mode = !has_aamix_out_paths(spec);
 	return 0;
 }
 
@@ -3998,9 +4045,9 @@ static void pin_power_callback(struct hda_codec *codec,
 			       struct hda_jack_callback *jack,
 			       bool on)
 {
-	if (jack && jack->tbl->nid)
+	if (jack && jack->nid)
 		sync_power_state_change(codec,
-					set_pin_power_jack(codec, jack->tbl->nid, on));
+					set_pin_power_jack(codec, jack->nid, on));
 }
 
 /* callback only doing power up -- called at first */
@@ -5664,6 +5711,8 @@ static void init_aamix_paths(struct hda_codec *codec)
 
 	if (!spec->have_aamix_ctl)
 		return;
+	if (!has_aamix_out_paths(spec))
+		return;
 	update_aamix_paths(codec, spec->aamix_mode, spec->out_paths[0],
 			   spec->aamix_out_paths[0],
 			   spec->autocfg.line_out_type);
diff --git a/sound/pci/hda/hda_jack.c b/sound/pci/hda/hda_jack.c
index 366efbf87d41..b6dbe653b74f 100644
--- a/sound/pci/hda/hda_jack.c
+++ b/sound/pci/hda/hda_jack.c
@@ -259,7 +259,7 @@ snd_hda_jack_detect_enable_callback(struct hda_codec *codec, hda_nid_t nid,
 		if (!callback)
 			return ERR_PTR(-ENOMEM);
 		callback->func = func;
-		callback->tbl = jack;
+		callback->nid = jack->nid;
 		callback->next = jack->callback;
 		jack->callback = callback;
 	}
diff --git a/sound/pci/hda/hda_jack.h b/sound/pci/hda/hda_jack.h
index 387d30984dfe..1009909ea158 100644
--- a/sound/pci/hda/hda_jack.h
+++ b/sound/pci/hda/hda_jack.h
@@ -21,7 +21,7 @@ struct hda_jack_callback;
 typedef void (*hda_jack_callback_fn) (struct hda_codec *, struct hda_jack_callback *);
 
 struct hda_jack_callback {
-	struct hda_jack_tbl *tbl;
+	hda_nid_t nid;
 	hda_jack_callback_fn func;
 	unsigned int private_data;	/* arbitrary data */
 	struct hda_jack_callback *next;
diff --git a/sound/pci/hda/patch_ca0132.c b/sound/pci/hda/patch_ca0132.c
index 5b8a5b84a03c..304a0d7a6481 100644
--- a/sound/pci/hda/patch_ca0132.c
+++ b/sound/pci/hda/patch_ca0132.c
@@ -4427,13 +4427,16 @@ static void ca0132_process_dsp_response(struct hda_codec *codec,
 static void hp_callback(struct hda_codec *codec, struct hda_jack_callback *cb)
 {
 	struct ca0132_spec *spec = codec->spec;
+	struct hda_jack_tbl *tbl;
 
 	/* Delay enabling the HP amp, to let the mic-detection
 	 * state machine run.
 	 */
 	cancel_delayed_work_sync(&spec->unsol_hp_work);
 	schedule_delayed_work(&spec->unsol_hp_work, msecs_to_jiffies(500));
-	cb->tbl->block_report = 1;
+	tbl = snd_hda_jack_tbl_get(codec, cb->nid);
+	if (tbl)
+		tbl->block_report = 1;
 }
 
 static void amic_callback(struct hda_codec *codec, struct hda_jack_callback *cb)
diff --git a/sound/pci/hda/patch_cirrus.c b/sound/pci/hda/patch_cirrus.c
index 85813de26da8..ac38222cce49 100644
--- a/sound/pci/hda/patch_cirrus.c
+++ b/sound/pci/hda/patch_cirrus.c
@@ -613,6 +613,7 @@ enum {
 	CS4208_MAC_AUTO,
 	CS4208_MBA6,
 	CS4208_MBP11,
+	CS4208_MACMINI,
 	CS4208_GPIO0,
 };
 
@@ -620,6 +621,7 @@ static const struct hda_model_fixup cs4208_models[] = {
 	{ .id = CS4208_GPIO0, .name = "gpio0" },
 	{ .id = CS4208_MBA6, .name = "mba6" },
 	{ .id = CS4208_MBP11, .name = "mbp11" },
+	{ .id = CS4208_MACMINI, .name = "macmini" },
 	{}
 };
 
@@ -631,6 +633,7 @@ static const struct snd_pci_quirk cs4208_fixup_tbl[] = {
 /* codec SSID matching */
 static const struct snd_pci_quirk cs4208_mac_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x106b, 0x5e00, "MacBookPro 11,2", CS4208_MBP11),
+	SND_PCI_QUIRK(0x106b, 0x6c00, "MacMini 7,1", CS4208_MACMINI),
 	SND_PCI_QUIRK(0x106b, 0x7100, "MacBookAir 6,1", CS4208_MBA6),
 	SND_PCI_QUIRK(0x106b, 0x7200, "MacBookAir 6,2", CS4208_MBA6),
 	SND_PCI_QUIRK(0x106b, 0x7b00, "MacBookPro 12,1", CS4208_MBP11),
@@ -665,6 +668,24 @@ static void cs4208_fixup_mac(struct hda_codec *codec,
 	snd_hda_apply_fixup(codec, action);
 }
 
+/* MacMini 7,1 has the inverted jack detection */
+static void cs4208_fixup_macmini(struct hda_codec *codec,
+				 const struct hda_fixup *fix, int action)
+{
+	static const struct hda_pintbl pincfgs[] = {
+		{ 0x18, 0x00ab9150 }, /* mic (audio-in) jack: disable detect */
+		{ 0x21, 0x004be140 }, /* SPDIF: disable detect */
+		{ }
+	};
+
+	if (action == HDA_FIXUP_ACT_PRE_PROBE) {
+		/* HP pin (0x10) has an inverted detection */
+		codec->inv_jack_detect = 1;
+		/* disable the bogus Mic and SPDIF jack detections */
+		snd_hda_apply_pincfgs(codec, pincfgs);
+	}
+}
+
 static int cs4208_spdif_sw_put(struct snd_kcontrol *kcontrol,
 			       struct snd_ctl_elem_value *ucontrol)
 {
@@ -708,6 +729,12 @@ static const struct hda_fixup cs4208_fixups[] = {
 		.chained = true,
 		.chain_id = CS4208_GPIO0,
 	},
+	[CS4208_MACMINI] = {
+		.type = HDA_FIXUP_FUNC,
+		.v.func = cs4208_fixup_macmini,
+		.chained = true,
+		.chain_id = CS4208_GPIO0,
+	},
 	[CS4208_GPIO0] = {
 		.type = HDA_FIXUP_FUNC,
 		.v.func = cs4208_fixup_gpio0,
diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c
index d1c74295a362..57d4cce06ab6 100644
--- a/sound/pci/hda/patch_hdmi.c
+++ b/sound/pci/hda/patch_hdmi.c
@@ -438,7 +438,8 @@ static int hdmi_eld_ctl_get(struct snd_kcontrol *kcontrol,
 	eld = &per_pin->sink_eld;
 
 	mutex_lock(&per_pin->lock);
-	if (eld->eld_size > ARRAY_SIZE(ucontrol->value.bytes.data)) {
+	if (eld->eld_size > ARRAY_SIZE(ucontrol->value.bytes.data) ||
+	    eld->eld_size > ELD_MAX_SIZE) {
 		mutex_unlock(&per_pin->lock);
 		snd_BUG();
 		return -EINVAL;
@@ -1183,7 +1184,7 @@ static void check_presence_and_report(struct hda_codec *codec, hda_nid_t nid)
 static void jack_callback(struct hda_codec *codec,
 			  struct hda_jack_callback *jack)
 {
-	check_presence_and_report(codec, jack->tbl->nid);
+	check_presence_and_report(codec, jack->nid);
 }
 
 static void hdmi_intrinsic_event(struct hda_codec *codec, unsigned int res)
diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 887f37761f18..f33c58d3850e 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -282,7 +282,7 @@ static void alc_update_knob_master(struct hda_codec *codec,
 	uctl = kzalloc(sizeof(*uctl), GFP_KERNEL);
 	if (!uctl)
 		return;
-	val = snd_hda_codec_read(codec, jack->tbl->nid, 0,
+	val = snd_hda_codec_read(codec, jack->nid, 0,
 				 AC_VERB_GET_VOLUME_KNOB_CONTROL, 0);
 	val &= HDA_AMP_VOLMASK;
 	uctl->value.integer.value[0] = val;
@@ -1795,7 +1795,6 @@ enum {
 	ALC882_FIXUP_NO_PRIMARY_HP,
 	ALC887_FIXUP_ASUS_BASS,
 	ALC887_FIXUP_BASS_CHMAP,
-	ALC882_FIXUP_DISABLE_AAMIX,
 };
 
 static void alc889_fixup_coef(struct hda_codec *codec,
@@ -1957,8 +1956,6 @@ static void alc882_fixup_no_primary_hp(struct hda_codec *codec,
 
 static void alc_fixup_bass_chmap(struct hda_codec *codec,
 				 const struct hda_fixup *fix, int action);
-static void alc_fixup_disable_aamix(struct hda_codec *codec,
-				    const struct hda_fixup *fix, int action);
 
 static const struct hda_fixup alc882_fixups[] = {
 	[ALC882_FIXUP_ABIT_AW9D_MAX] = {
@@ -2196,10 +2193,6 @@ static const struct hda_fixup alc882_fixups[] = {
 		.type = HDA_FIXUP_FUNC,
 		.v.func = alc_fixup_bass_chmap,
 	},
-	[ALC882_FIXUP_DISABLE_AAMIX] = {
-		.type = HDA_FIXUP_FUNC,
-		.v.func = alc_fixup_disable_aamix,
-	},
 };
 
 static const struct snd_pci_quirk alc882_fixup_tbl[] = {
@@ -2238,6 +2231,7 @@ static const struct snd_pci_quirk alc882_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x104d, 0x9047, "Sony Vaio TT", ALC889_FIXUP_VAIO_TT),
 	SND_PCI_QUIRK(0x104d, 0x905a, "Sony Vaio Z", ALC882_FIXUP_NO_PRIMARY_HP),
 	SND_PCI_QUIRK(0x104d, 0x9043, "Sony Vaio VGC-LN51JGB", ALC882_FIXUP_NO_PRIMARY_HP),
+	SND_PCI_QUIRK(0x104d, 0x9044, "Sony VAIO AiO", ALC882_FIXUP_NO_PRIMARY_HP),
 
 	/* All Apple entries are in codec SSIDs */
 	SND_PCI_QUIRK(0x106b, 0x00a0, "MacBookPro 3,1", ALC889_FIXUP_MBP_VREF),
@@ -2267,7 +2261,6 @@ static const struct snd_pci_quirk alc882_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x1462, 0x7350, "MSI-7350", ALC889_FIXUP_CD),
 	SND_PCI_QUIRK_VENDOR(0x1462, "MSI", ALC882_FIXUP_GPIO3),
 	SND_PCI_QUIRK(0x1458, 0xa002, "Gigabyte EP45-DS3/Z87X-UD3H", ALC889_FIXUP_FRONT_HP_NO_PRESENCE),
-	SND_PCI_QUIRK(0x1458, 0xa182, "Gigabyte Z170X-UD3", ALC882_FIXUP_DISABLE_AAMIX),
 	SND_PCI_QUIRK(0x147b, 0x107a, "Abit AW9D-MAX", ALC882_FIXUP_ABIT_AW9D_MAX),
 	SND_PCI_QUIRK_VENDOR(0x1558, "Clevo laptop", ALC882_FIXUP_EAPD),
 	SND_PCI_QUIRK(0x161f, 0x2054, "Medion laptop", ALC883_FIXUP_EAPD),
diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c
index 14a62b8117fd..79f78989a7b6 100644
--- a/sound/pci/hda/patch_sigmatel.c
+++ b/sound/pci/hda/patch_sigmatel.c
@@ -493,9 +493,9 @@ static void jack_update_power(struct hda_codec *codec,
 	if (!spec->num_pwrs)
 		return;
 
-	if (jack && jack->tbl->nid) {
-		stac_toggle_power_map(codec, jack->tbl->nid,
-				      snd_hda_jack_detect(codec, jack->tbl->nid),
+	if (jack && jack->nid) {
+		stac_toggle_power_map(codec, jack->nid,
+				      snd_hda_jack_detect(codec, jack->nid),
 				      true);
 		return;
 	}
diff --git a/sound/soc/codecs/rt5645.c b/sound/soc/codecs/rt5645.c
index 5c101af0ac63..a06cdcfffd2a 100644
--- a/sound/soc/codecs/rt5645.c
+++ b/sound/soc/codecs/rt5645.c
@@ -500,7 +500,7 @@ static const struct snd_kcontrol_new rt5645_snd_controls[] = {
 
 	/* IN1/IN2 Control */
 	SOC_SINGLE_TLV("IN1 Boost", RT5645_IN1_CTRL1,
-		RT5645_BST_SFT1, 8, 0, bst_tlv),
+		RT5645_BST_SFT1, 12, 0, bst_tlv),
 	SOC_SINGLE_TLV("IN2 Boost", RT5645_IN2_CTRL,
 		RT5645_BST_SFT2, 8, 0, bst_tlv),
 
diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index 70e4b9d8bdcd..81133fe5f2d0 100644
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -1696,7 +1696,8 @@ int dpcm_be_dai_hw_free(struct snd_soc_pcm_runtime *fe, int stream)
 		    (be->dpcm[stream].state != SND_SOC_DPCM_STATE_PREPARE) &&
 		    (be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_FREE) &&
 		    (be->dpcm[stream].state != SND_SOC_DPCM_STATE_PAUSED) &&
-		    (be->dpcm[stream].state != SND_SOC_DPCM_STATE_STOP))
+		    (be->dpcm[stream].state != SND_SOC_DPCM_STATE_STOP) &&
+		    (be->dpcm[stream].state != SND_SOC_DPCM_STATE_SUSPEND))
 			continue;
 
 		dev_dbg(be->dev, "ASoC: hw_free BE %s\n",
diff --git a/sound/usb/midi.c b/sound/usb/midi.c
index bec63e0d2605..f059326a4914 100644
--- a/sound/usb/midi.c
+++ b/sound/usb/midi.c
@@ -2451,7 +2451,6 @@ int snd_usbmidi_create(struct snd_card *card,
 	else
 		err = snd_usbmidi_create_endpoints(umidi, endpoints);
 	if (err < 0) {
-		snd_usbmidi_free(umidi);
 		return err;
 	}
 
diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c
index fb9a8a5787a6..37d8ababfc04 100644
--- a/sound/usb/quirks.c
+++ b/sound/usb/quirks.c
@@ -1118,6 +1118,7 @@ bool snd_usb_get_sample_rate_quirk(struct snd_usb_audio *chip)
 	switch (chip->usb_id) {
 	case USB_ID(0x045E, 0x075D): /* MS Lifecam Cinema  */
 	case USB_ID(0x045E, 0x076D): /* MS Lifecam HD-5000 */
+	case USB_ID(0x045E, 0x076F): /* MS Lifecam HD-6000 */
 	case USB_ID(0x045E, 0x0772): /* MS Lifecam Studio */
 	case USB_ID(0x045E, 0x0779): /* MS Lifecam HD-3000 */
 	case USB_ID(0x04D8, 0xFEEA): /* Benchmark DAC1 Pre */
@@ -1202,8 +1203,12 @@ void snd_usb_set_interface_quirk(struct usb_device *dev)
 	 * "Playback Design" products need a 50ms delay after setting the
 	 * USB interface.
 	 */
-	if (le16_to_cpu(dev->descriptor.idVendor) == 0x23ba)
+	switch (le16_to_cpu(dev->descriptor.idVendor)) {
+	case 0x23ba: /* Playback Design */
+	case 0x0644: /* TEAC Corp. */
 		mdelay(50);
+		break;
+	}
 }
 
 void snd_usb_ctl_msg_quirk(struct usb_device *dev, unsigned int pipe,
@@ -1218,6 +1223,14 @@ void snd_usb_ctl_msg_quirk(struct usb_device *dev, unsigned int pipe,
 	    (requesttype & USB_TYPE_MASK) == USB_TYPE_CLASS)
 		mdelay(20);
 
+	/*
+	 * "TEAC Corp." products need a 20ms delay after each
+	 * class compliant request
+	 */
+	if ((le16_to_cpu(dev->descriptor.idVendor) == 0x0644) &&
+	    (requesttype & USB_TYPE_MASK) == USB_TYPE_CLASS)
+		mdelay(20);
+
 	/* Marantz/Denon devices with USB DAC functionality need a delay
 	 * after each class compliant request
 	 */
@@ -1266,7 +1279,7 @@ u64 snd_usb_interface_dsd_format_quirks(struct snd_usb_audio *chip,
 	case USB_ID(0x20b1, 0x3008): /* iFi Audio micro/nano iDSD */
 	case USB_ID(0x20b1, 0x2008): /* Matrix Audio X-Sabre */
 	case USB_ID(0x20b1, 0x300a): /* Matrix Audio Mini-i Pro */
-	case USB_ID(0x22d8, 0x0416): /* OPPO HA-1*/
+	case USB_ID(0x22d9, 0x0416): /* OPPO HA-1 */
 		if (fp->altsetting == 2)
 			return SNDRV_PCM_FMTBIT_DSD_U32_BE;
 		break;
@@ -1275,6 +1288,7 @@ u64 snd_usb_interface_dsd_format_quirks(struct snd_usb_audio *chip,
 	case USB_ID(0x20b1, 0x2009): /* DIYINHK DSD DXD 384kHz USB to I2S/DSD */
 	case USB_ID(0x20b1, 0x2023): /* JLsounds I2SoverUSB */
 	case USB_ID(0x20b1, 0x3023): /* Aune X1S 32BIT/384 DSD DAC */
+	case USB_ID(0x2616, 0x0106): /* PS Audio NuWave DAC */
 		if (fp->altsetting == 3)
 			return SNDRV_PCM_FMTBIT_DSD_U32_BE;
 		break;
