452 files changed, 6970 insertions, 5898 deletions

diff --git a/Documentation/dontdiff b/Documentation/dontdiff
index b89a739a3276..9de9813d0ec5 100644
--- a/Documentation/dontdiff
+++ b/Documentation/dontdiff
@@ -1,5 +1,6 @@
 *.a
 *.aux
+*.bc
 *.bin
 *.bz2
 *.cis
@@ -21,6 +22,7 @@
 *.i
 *.jpeg
 *.ko
+*.ll
 *.log
 *.lst
 *.lzma
@@ -35,6 +37,7 @@
 *.out
 *.patch
 *.pdf
+*.plist
 *.png
 *.pot
 *.ps
diff --git a/Documentation/filesystems/Locking b/Documentation/filesystems/Locking
index efca5c1bbb10..eba790134253 100644
--- a/Documentation/filesystems/Locking
+++ b/Documentation/filesystems/Locking
@@ -202,7 +202,7 @@ prototypes:
                                 unsigned long *);
         int (*migratepage)(struct address_space *, struct page *, struct page *);
         int (*launder_page)(struct page *);
-        int (*is_partially_uptodate)(struct page *, read_descriptor_t *, unsigned long);
+        int (*is_partially_uptodate)(struct page *, unsigned long, unsigned long);
         int (*error_remove_page)(struct address_space *, struct page *);
         int (*swap_activate)(struct file *);
         int (*swap_deactivate)(struct file *);
diff --git a/Documentation/filesystems/vfs.txt b/Documentation/filesystems/vfs.txt
index 94eb86287bcb..617f6d70c077 100644
--- a/Documentation/filesystems/vfs.txt
+++ b/Documentation/filesystems/vfs.txt
@@ -596,7 +596,7 @@ struct address_space_operations {
         /* migrate the contents of a page to the specified target */
         int (*migratepage) (struct page *, struct page *);
         int (*launder_page) (struct page *);
-        int (*is_partially_uptodate) (struct page *, read_descriptor_t *,
+        int (*is_partially_uptodate) (struct page *, unsigned long,
                                         unsigned long);
         void (*is_dirty_writeback) (struct page *, bool *, bool *);
         int (*error_remove_page) (struct mapping *mapping, struct page *page);
diff --git a/Makefile b/Makefile
index cf3e07516a04..60ccbfe750a2 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 VERSION = 3
-PATCHLEVEL = 14
+PATCHLEVEL = 15
 SUBLEVEL = 0
-EXTRAVERSION =
+EXTRAVERSION = -rc1
 NAME = Shuffling Zombie Juror
 
 # *DOCUMENTATION*
@@ -248,6 +248,11 @@ HOSTCXX      = g++
 HOSTCFLAGS   = -Wall -Wmissing-prototypes -Wstrict-prototypes -O2 -fomit-frame-pointer
 HOSTCXXFLAGS = -O2
 
+ifeq ($(shell $(HOSTCC) -v 2>&1 | grep -c "clang version"), 1)
+HOSTCFLAGS  += -Wno-unused-value -Wno-unused-parameter \
+                -Wno-missing-field-initializers -fno-delete-null-pointer-checks
+endif
+
 # Decide whether to build built-in, modular, or both.
 # Normally, just do built-in.
 
@@ -324,6 +329,14 @@ endif
 
 export quiet Q KBUILD_VERBOSE
 
+ifneq ($(CC),)
+ifeq ($(shell $(CC) -v 2>&1 | grep -c "clang version"), 1)
+COMPILER := clang
+else
+COMPILER := gcc
+endif
+export COMPILER
+endif
 
 # Look for make include files relative to root of kernel src
 MAKEFLAGS += --include-dir=$(srctree)
@@ -383,7 +396,7 @@ KBUILD_CFLAGS   := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \
                    -fno-strict-aliasing -fno-common \
                    -Werror-implicit-function-declaration \
                    -Wno-format-security \
-                   -fno-delete-null-pointer-checks
+                   $(call cc-option,-fno-delete-null-pointer-checks,)
 KBUILD_AFLAGS_KERNEL :=
 KBUILD_CFLAGS_KERNEL :=
 KBUILD_AFLAGS   := -D__ASSEMBLY__
@@ -415,8 +428,9 @@ export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_ve
 
 # Files to ignore in find ... statements
 
-RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o -name CVS \
-                   -o -name .pc -o -name .hg -o -name .git \) -prune -o
+export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o    \
+                          -name CVS -o -name .pc -o -name .hg -o -name .git \) \
+                          -prune -o
 export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \
                          --exclude CVS --exclude .pc --exclude .hg --exclude .git
 
@@ -623,9 +637,24 @@ endif
 endif
 KBUILD_CFLAGS += $(stackp-flag)
 
+ifeq ($(COMPILER),clang)
+KBUILD_CPPFLAGS += $(call cc-option,-Qunused-arguments,)
+KBUILD_CPPFLAGS += $(call cc-option,-Wno-unknown-warning-option,)
+KBUILD_CFLAGS += $(call cc-disable-warning, unused-variable)
+KBUILD_CFLAGS += $(call cc-disable-warning, format-invalid-specifier)
+KBUILD_CFLAGS += $(call cc-disable-warning, gnu)
+# Quiet clang warning: comparison of unsigned expression < 0 is always false
+KBUILD_CFLAGS += $(call cc-disable-warning, tautological-compare)
+# CLANG uses a _MergedGlobals as optimization, but this breaks modpost, as the
+# source of a reference will be _MergedGlobals and not on of the whitelisted names.
+# See modpost pattern 2
+KBUILD_CFLAGS += $(call cc-option, -mno-global-merge,)
+else
+
 # This warning generated too much noise in a regular build.
 # Use make W=1 to enable this warning (see scripts/Makefile.build)
 KBUILD_CFLAGS += $(call cc-disable-warning, unused-but-set-variable)
+endif
 
 ifdef CONFIG_FRAME_POINTER
 KBUILD_CFLAGS   += -fno-omit-frame-pointer -fno-optimize-sibling-calls
@@ -1075,7 +1104,7 @@ CLEAN_DIRS  += $(MODVERDIR)
 
 # Directories & files removed with 'make mrproper'
 MRPROPER_DIRS  += include/config usr/include include/generated          \
-                  arch/*/include/generated
+                  arch/*/include/generated .tmp_objdiff
 MRPROPER_FILES += .config .config.old .version .old_version $(version_h) \
                   Module.symvers tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \
                   signing_key.priv signing_key.x509 x509.genkey         \
diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig
index f6c6b345388c..b7ff9a318c31 100644
--- a/arch/alpha/Kconfig
+++ b/arch/alpha/Kconfig
@@ -22,6 +22,7 @@ config ALPHA
         select GENERIC_SMP_IDLE_THREAD
         select GENERIC_STRNCPY_FROM_USER
         select GENERIC_STRNLEN_USER
+        select HAVE_ARCH_AUDITSYSCALL
         select HAVE_MOD_ARCH_SPECIFIC
         select MODULES_USE_ELF_RELA
         select ODD_RT_SIGACTION
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 5db05f6a0412..ab438cb5af55 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -24,6 +24,7 @@ config ARM
         select GENERIC_STRNCPY_FROM_USER
         select GENERIC_STRNLEN_USER
         select HARDIRQS_SW_RESEND
+        select HAVE_ARCH_AUDITSYSCALL if (AEABI && !OABI_COMPAT)
         select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL
         select HAVE_ARCH_KGDB
         select HAVE_ARCH_SECCOMP_FILTER if (AEABI && !OABI_COMPAT)
diff --git a/arch/arm/include/asm/syscall.h b/arch/arm/include/asm/syscall.h
index 73ddd7239b33..4651f6999b7d 100644
--- a/arch/arm/include/asm/syscall.h
+++ b/arch/arm/include/asm/syscall.h
@@ -7,7 +7,7 @@
 #ifndef _ASM_ARM_SYSCALL_H
 #define _ASM_ARM_SYSCALL_H
 
-#include <linux/audit.h> /* for AUDIT_ARCH_* */
+#include <uapi/linux/audit.h> /* for AUDIT_ARCH_* */
 #include <linux/elf.h> /* for ELF_EM */
 #include <linux/err.h>
 #include <linux/sched.h>
@@ -103,8 +103,7 @@ static inline void syscall_set_arguments(struct task_struct *task,
         memcpy(&regs->ARM_r0 + i, args, n * sizeof(args[0]));
 }
 
-static inline int syscall_get_arch(struct task_struct *task,
-                                   struct pt_regs *regs)
+static inline int syscall_get_arch(void)
 {
         /* ARM tasks don't change audit architectures on the fly. */
         return AUDIT_ARCH_ARM;
diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig
index 9ceccef9c649..f81e7b989fff 100644
--- a/arch/blackfin/Kconfig
+++ b/arch/blackfin/Kconfig
@@ -34,6 +34,7 @@ config BLACKFIN
         select ARCH_WANT_IPC_PARSE_VERSION
         select GENERIC_ATOMIC64
         select GENERIC_IRQ_PROBE
+        select GENERIC_IRQ_SHOW
         select HAVE_NMI_WATCHDOG if NMI_WATCHDOG
         select GENERIC_SMP_IDLE_THREAD
         select ARCH_USES_GETTIMEOFFSET if !GENERIC_CLOCKEVENTS
@@ -51,9 +52,6 @@ config GENERIC_BUG
 config ZONE_DMA
         def_bool y
 
-config GENERIC_GPIO
-        def_bool y
-
 config FORCE_MAX_ZONEORDER
         int
         default "14"
@@ -870,14 +868,6 @@ config SYS_BFIN_SPINLOCK_L1
           If enabled, sys_bfin_spinlock function is linked
           into L1 instruction memory. (less latency)
 
-config IP_CHECKSUM_L1
-        bool "Locate IP Checksum function in L1 Memory"
-        default n
-        depends on !SMP
-        help
-          If enabled, the IP Checksum function is linked
-          into L1 instruction memory. (less latency)
-
 config CACHELINE_ALIGNED_L1
         bool "Locate cacheline_aligned data to L1 Data Memory"
         default y if !BF54x
diff --git a/arch/blackfin/include/asm/bfin_crc.h b/arch/blackfin/include/asm/bfin_crc.h
deleted file mode 100644
index 75cef4dc85a1..000000000000
--- a/arch/blackfin/include/asm/bfin_crc.h
+++ /dev/null
@@ -1,125 +0,0 @@
-/*
- * bfin_crc.h - interface to Blackfin CRC controllers
- *
- * Copyright 2012 Analog Devices Inc.
- *
- * Licensed under the GPL-2 or later.
- */
-
-#ifndef __BFIN_CRC_H__
-#define __BFIN_CRC_H__
-
-/* Function driver which use hardware crc must initialize the structure */
-struct crc_info {
-        /* Input data address */
-        unsigned char *in_addr;
-        /* Output data address */
-        unsigned char *out_addr;
-        /* Input or output bytes */
-        unsigned long datasize;
-        union {
-        /* CRC to compare with that of input buffer */
-        unsigned long crc_compare;
-        /* Value to compare with input data */
-        unsigned long val_verify;
-        /* Value to fill */
-        unsigned long val_fill;
-        };
-        /* Value to program the 32b CRC Polynomial */
-        unsigned long crc_poly;
-        union {
-        /* CRC calculated from the input data */
-        unsigned long crc_result;
-        /* First failed position to verify input data */
-        unsigned long pos_verify;
-        };
-        /* CRC mirror flags */
-        unsigned int bitmirr:1;
-        unsigned int bytmirr:1;
-        unsigned int w16swp:1;
-        unsigned int fdsel:1;
-        unsigned int rsltmirr:1;
-        unsigned int polymirr:1;
-        unsigned int cmpmirr:1;
-};
-
-/* Userspace interface */
-#define CRC_IOC_MAGIC           'C'
-#define CRC_IOC_CALC_CRC        _IOWR('C', 0x01, unsigned int)
-#define CRC_IOC_MEMCPY_CRC      _IOWR('C', 0x02, unsigned int)
-#define CRC_IOC_VERIFY_VAL      _IOWR('C', 0x03, unsigned int)
-#define CRC_IOC_FILL_VAL        _IOWR('C', 0x04, unsigned int)
-
-
-#ifdef __KERNEL__
-
-#include <linux/types.h>
-#include <linux/spinlock.h>
-#include <linux/miscdevice.h>
-
-struct crc_register {
-        u32 control;
-        u32 datacnt;
-        u32 datacntrld;
-        u32 __pad_1[2];
-        u32 compare;
-        u32 fillval;
-        u32 datafifo;
-        u32 intren;
-        u32 intrenset;
-        u32 intrenclr;
-        u32 poly;
-        u32 __pad_2[4];
-        u32 status;
-        u32 datacntcap;
-        u32 __pad_3;
-        u32 result;
-        u32 curresult;
-        u32 __pad_4[3];
-        u32 revid;
-};
-
-/* CRC_STATUS Masks */
-#define CMPERR                  0x00000002      /* Compare error */
-#define DCNTEXP                 0x00000010      /* datacnt register expired */
-#define IBR                     0x00010000      /* Input buffer ready */
-#define OBR                     0x00020000      /* Output buffer ready */
-#define IRR                     0x00040000      /* Immediate result readt */
-#define LUTDONE                 0x00080000      /* Look-up table generation done */
-#define FSTAT                   0x00700000      /* FIFO status */
-#define MAX_FIFO                4               /* Max fifo size */
-
-/* CRC_CONTROL Masks */
-#define BLKEN                   0x00000001      /* Block enable */
-#define OPMODE                  0x000000F0      /* Operation mode */
-#define OPMODE_OFFSET           4               /* Operation mode mask offset*/
-#define MODE_DMACPY_CRC         1               /* MTM CRC compute and compare */
-#define MODE_DATA_FILL          2               /* MTM data fill */
-#define MODE_CALC_CRC           3               /* MSM CRC compute and compare */
-#define MODE_DATA_VERIFY        4               /* MSM data verify */
-#define AUTOCLRZ                0x00000100      /* Auto clear to zero */
-#define AUTOCLRF                0x00000200      /* Auto clear to one */
-#define OBRSTALL                0x00001000      /* Stall on output buffer ready */
-#define IRRSTALL                0x00002000      /* Stall on immediate result ready */
-#define BITMIRR                 0x00010000      /* Mirror bits within each byte of 32-bit input data */
-#define BITMIRR_OFFSET          16              /* Mirror bits offset */
-#define BYTMIRR                 0x00020000      /* Mirror bytes of 32-bit input data */
-#define BYTMIRR_OFFSET          17              /* Mirror bytes offset */
-#define W16SWP                  0x00040000      /* Mirror uppper and lower 16-bit word of 32-bit input data */
-#define W16SWP_OFFSET           18              /* Mirror 16-bit word offset */
-#define FDSEL                   0x00080000      /* FIFO is written after input data is mirrored */
-#define FDSEL_OFFSET            19              /* Mirror FIFO offset */
-#define RSLTMIRR                0x00100000      /* CRC result registers are mirrored. */
-#define RSLTMIRR_OFFSET         20              /* Mirror CRC result offset. */
-#define POLYMIRR                0x00200000      /* CRC poly register is mirrored. */
-#define POLYMIRR_OFFSET         21              /* Mirror CRC poly offset. */
-#define CMPMIRR                 0x00400000      /* CRC compare register is mirrored. */
-#define CMPMIRR_OFFSET          22              /* Mirror CRC compare offset. */
-
-/* CRC_INTREN Masks */
-#define CMPERRI                 0x02            /* CRC_ERROR_INTR */
-#define DCNTEXPI                0x10            /* CRC_STATUS_INTR */
-
-#endif
-
-#endif
diff --git a/arch/blackfin/include/asm/dma.h b/arch/blackfin/include/asm/dma.h
index 40e9c2bbc6e3..8d1e4c2d2c36 100644
--- a/arch/blackfin/include/asm/dma.h
+++ b/arch/blackfin/include/asm/dma.h
@@ -316,8 +316,6 @@ static inline void disable_dma(unsigned int channel)
 }
 static inline void enable_dma(unsigned int channel)
 {
-        dma_ch[channel].regs->curr_x_count = 0;
-        dma_ch[channel].regs->curr_y_count = 0;
         dma_ch[channel].regs->cfg |= DMAEN;
 }
 int set_dma_callback(unsigned int channel, irq_handler_t callback, void *data);
diff --git a/arch/blackfin/include/asm/portmux.h b/arch/blackfin/include/asm/portmux.h
index 7aa20436e799..c8f0939419be 100644
--- a/arch/blackfin/include/asm/portmux.h
+++ b/arch/blackfin/include/asm/portmux.h
@@ -18,16 +18,14 @@
 #define P_DONTCARE      0x1000
 
 #ifdef CONFIG_PINCTRL
-#include <asm/irq_handler.h>
+int bfin_internal_set_wake(unsigned int irq, unsigned int state);
 
 #define gpio_pint_regs bfin_pint_regs
 #define adi_internal_set_wake bfin_internal_set_wake
 
-#define peripheral_request(per, label) 0
+#define peripheral_request(per, label) (0)
 #define peripheral_free(per)
-#define peripheral_request_list(per, label) \
-        (pdev ? (IS_ERR(devm_pinctrl_get_select_default(&pdev->dev)) \
-        ? -EINVAL : 0) : 0)
+#define peripheral_request_list(per, label) (0)
 #define peripheral_free_list(per)
 #else
 int peripheral_request(unsigned short per, const char *label);
@@ -39,7 +37,7 @@ void peripheral_free_list(const unsigned short per[]);
 #include <linux/err.h>
 #include <linux/pinctrl/pinctrl.h>
 #include <mach/portmux.h>
-#include <linux/gpio.h>
+#include <mach/gpio.h>
 
 #ifndef P_SPORT2_TFS
 #define P_SPORT2_TFS P_UNDEF
diff --git a/arch/blackfin/kernel/irqchip.c b/arch/blackfin/kernel/irqchip.c
index ff3d747154ac..0ba25764b8c0 100644
--- a/arch/blackfin/kernel/irqchip.c
+++ b/arch/blackfin/kernel/irqchip.c
@@ -11,6 +11,7 @@
 #include <linux/kallsyms.h>
 #include <linux/interrupt.h>
 #include <linux/irq.h>
+#include <linux/seq_file.h>
 #include <asm/irq_handler.h>
 #include <asm/trace.h>
 #include <asm/pda.h>
@@ -33,37 +34,15 @@ static struct irq_desc bad_irq_desc = {
 #endif
 
 #ifdef CONFIG_PROC_FS
-int show_interrupts(struct seq_file *p, void *v)
+int arch_show_interrupts(struct seq_file *p, int prec)
 {
-        int i = *(loff_t *) v, j;
-        struct irqaction *action;
-        unsigned long flags;
-
-        if (i < NR_IRQS) {
-                struct irq_desc *desc = irq_to_desc(i);
-
-                raw_spin_lock_irqsave(&desc->lock, flags);
-                action = desc->action;
-                if (!action)
-                        goto skip;
-                seq_printf(p, "%3d: ", i);
-                for_each_online_cpu(j)
-                        seq_printf(p, "%10u ", kstat_irqs_cpu(i, j));
-                seq_printf(p, " %8s", irq_desc_get_chip(desc)->name);
-                seq_printf(p, "  %s", action->name);
-                for (action = action->next; action; action = action->next)
-                        seq_printf(p, "  %s", action->name);
-
-                seq_putc(p, '\n');
- skip:
-                raw_spin_unlock_irqrestore(&desc->lock, flags);
-        } else if (i == NR_IRQS) {
-                seq_printf(p, "NMI: ");
-                for_each_online_cpu(j)
-                        seq_printf(p, "%10u ", cpu_pda[j].__nmi_count);
-                seq_printf(p, "     CORE  Non Maskable Interrupt\n");
-                seq_printf(p, "Err: %10u\n",  atomic_read(&irq_err_count));
-        }
+        int j;
+
+        seq_printf(p, "%*s: ", prec, "NMI");
+        for_each_online_cpu(j)
+                seq_printf(p, "%10u ", cpu_pda[j].__nmi_count);
+        seq_printf(p, "  CORE  Non Maskable Interrupt\n");
+        seq_printf(p, "%*s: %10u\n", prec, "ERR", atomic_read(&irq_err_count));
         return 0;
 }
 #endif
diff --git a/arch/blackfin/mach-bf518/boards/ezbrd.c b/arch/blackfin/mach-bf518/boards/ezbrd.c
index f8047ca3b339..d022112927c2 100644
--- a/arch/blackfin/mach-bf518/boards/ezbrd.c
+++ b/arch/blackfin/mach-bf518/boards/ezbrd.c
@@ -36,7 +36,7 @@ const char bfin_board_name[] = "ADI BF518F-EZBRD";
  *  Driver needs to know address, irq and flag pin.
  */
 
-#if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
+#if IS_ENABLED(CONFIG_MTD_PHYSMAP)
 static struct mtd_partition ezbrd_partitions[] = {
         {
                 .name       = "bootloader(nor)",
@@ -61,7 +61,7 @@ static struct physmap_flash_data ezbrd_flash_data = {
 
 static struct resource ezbrd_flash_resource = {
         .start = 0x20000000,
-#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
+#if IS_ENABLED(CONFIG_SPI_BFIN5XX)
         .end   = 0x202fffff,
 #else
         .end   = 0x203fffff,
@@ -80,14 +80,14 @@ static struct platform_device ezbrd_flash_device = {
 };
 #endif
 
-#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_RTC_DRV_BFIN)
 static struct platform_device rtc_device = {
         .name = "rtc-bfin",
         .id   = -1,
 };
 #endif
 
-#if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_MAC)
 #include <linux/bfin_mac.h>
 static const unsigned short bfin_mac_peripherals[] = {
         P_MII0_ETxD0,
@@ -105,7 +105,7 @@ static const unsigned short bfin_mac_peripherals[] = {
 
 static struct bfin_phydev_platform_data bfin_phydev_data[] = {
         {
-#if defined(CONFIG_NET_DSA_KSZ8893M) || defined(CONFIG_NET_DSA_KSZ8893M_MODULE)
+#if IS_ENABLED(CONFIG_NET_DSA_KSZ8893M)
                 .addr = 3,
 #else
                 .addr = 1,
@@ -119,7 +119,7 @@ static struct bfin_mii_bus_platform_data bfin_mii_bus_data = {
         .phydev_data = bfin_phydev_data,
         .phy_mode = PHY_INTERFACE_MODE_MII,
         .mac_peripherals = bfin_mac_peripherals,
-#if defined(CONFIG_NET_DSA_KSZ8893M) || defined(CONFIG_NET_DSA_KSZ8893M_MODULE)
+#if IS_ENABLED(CONFIG_NET_DSA_KSZ8893M)
         .phy_mask = 0xfff7, /* Only probe the port phy connect to the on chip MAC */
 #endif
         .vlan1_mask = 1,
@@ -140,7 +140,7 @@ static struct platform_device bfin_mac_device = {
         }
 };
 
-#if defined(CONFIG_NET_DSA_KSZ8893M) || defined(CONFIG_NET_DSA_KSZ8893M_MODULE)
+#if IS_ENABLED(CONFIG_NET_DSA_KSZ8893M)
 static struct dsa_chip_data ksz8893m_switch_chip_data = {
         .mii_bus = &bfin_mii_bus.dev,
         .port_names = {
@@ -165,8 +165,7 @@ static struct platform_device ksz8893m_switch_device = {
 #endif
 #endif
 
-#if defined(CONFIG_MTD_M25P80) \
-        || defined(CONFIG_MTD_M25P80_MODULE)
+#if IS_ENABLED(CONFIG_MTD_M25P80)
 static struct mtd_partition bfin_spi_flash_partitions[] = {
         {
                 .name = "bootloader(spi)",
@@ -193,13 +192,13 @@ static struct bfin5xx_spi_chip spi_flash_chip_info = {
 };
 #endif
 
-#if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
+#if IS_ENABLED(CONFIG_MMC_SPI)
 static struct bfin5xx_spi_chip mmc_spi_chip_info = {
         .enable_dma = 0,
 };
 #endif
 
-#if defined(CONFIG_TOUCHSCREEN_AD7877) || defined(CONFIG_TOUCHSCREEN_AD7877_MODULE)
+#if IS_ENABLED(CONFIG_TOUCHSCREEN_AD7877)
 static const struct ad7877_platform_data bfin_ad7877_ts_info = {
         .model                  = 7877,
         .vref_delay_usecs       = 50,   /* internal, no capacitor */
@@ -216,8 +215,7 @@ static const struct ad7877_platform_data bfin_ad7877_ts_info = {
 #endif
 
 static struct spi_board_info bfin_spi_board_info[] __initdata = {
-#if defined(CONFIG_MTD_M25P80) \
-        || defined(CONFIG_MTD_M25P80_MODULE)
+#if IS_ENABLED(CONFIG_MTD_M25P80)
         {
                 /* the modalias must be the same as spi device driver name */
                 .modalias = "m25p80", /* Name of spi_driver for this device */
@@ -230,9 +228,8 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
         },
 #endif
 
-#if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE)
-#if defined(CONFIG_NET_DSA_KSZ8893M) \
-        || defined(CONFIG_NET_DSA_KSZ8893M_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_MAC)
+#if IS_ENABLED(CONFIG_NET_DSA_KSZ8893M)
         {
                 .modalias = "ksz8893m",
                 .max_speed_hz = 5000000,
@@ -244,7 +241,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
 #endif
 #endif
 
-#if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
+#if IS_ENABLED(CONFIG_MMC_SPI)
         {
                 .modalias = "mmc_spi",
                 .max_speed_hz = 25000000,     /* max spi clock (SCK) speed in HZ */
@@ -254,7 +251,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .mode = SPI_MODE_3,
         },
 #endif
-#if defined(CONFIG_TOUCHSCREEN_AD7877) || defined(CONFIG_TOUCHSCREEN_AD7877_MODULE)
+#if IS_ENABLED(CONFIG_TOUCHSCREEN_AD7877)
         {
                 .modalias               = "ad7877",
                 .platform_data          = &bfin_ad7877_ts_info,
@@ -264,7 +261,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .chip_select  = 2,
         },
 #endif
-#if defined(CONFIG_SND_SOC_WM8731) || defined(CONFIG_SND_SOC_WM8731_MODULE) \
+#if IS_ENABLED(CONFIG_SND_SOC_WM8731) \
          && defined(CONFIG_SND_SOC_WM8731_SPI)
         {
                 .modalias       = "wm8731",
@@ -274,7 +271,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .mode = SPI_MODE_0,
         },
 #endif
-#if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
+#if IS_ENABLED(CONFIG_SPI_SPIDEV)
         {
                 .modalias = "spidev",
                 .max_speed_hz = 3125000,     /* max spi clock (SCK) speed in HZ */
@@ -282,7 +279,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .chip_select = 1,
         },
 #endif
-#if defined(CONFIG_FB_BFIN_LQ035Q1) || defined(CONFIG_FB_BFIN_LQ035Q1_MODULE)
+#if IS_ENABLED(CONFIG_FB_BFIN_LQ035Q1)
         {
                 .modalias = "bfin-lq035q1-spi",
                 .max_speed_hz = 20000000,     /* max spi clock (SCK) speed in HZ */
@@ -294,7 +291,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
 };
 
 /* SPI controller data */
-#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
+#if IS_ENABLED(CONFIG_SPI_BFIN5XX)
 /* SPI (0) */
 static struct bfin5xx_spi_master bfin_spi0_info = {
         .num_chipselect = 6,
@@ -366,7 +363,7 @@ static struct platform_device bfin_spi1_device = {
 };
 #endif  /* spi master and devices */
 
-#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN)
 #ifdef CONFIG_SERIAL_BFIN_UART0
 static struct resource bfin_uart0_resources[] = {
         {
@@ -465,7 +462,7 @@ static struct platform_device bfin_uart1_device = {
 #endif
 #endif
 
-#if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_SIR)
 #ifdef CONFIG_BFIN_SIR0
 static struct resource bfin_sir0_resources[] = {
         {
@@ -520,7 +517,7 @@ static struct platform_device bfin_sir1_device = {
 #endif
 #endif
 
-#if defined(CONFIG_SND_BF5XX_I2S) || defined(CONFIG_SND_BF5XX_I2S_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_I2S)
 static struct platform_device bfin_i2s = {
         .name = "bfin-i2s",
         .id = CONFIG_SND_BF5XX_SPORT_NUM,
@@ -528,7 +525,7 @@ static struct platform_device bfin_i2s = {
 };
 #endif
 
-#if defined(CONFIG_I2C_BLACKFIN_TWI) || defined(CONFIG_I2C_BLACKFIN_TWI_MODULE)
+#if IS_ENABLED(CONFIG_I2C_BLACKFIN_TWI)
 static const u16 bfin_twi0_pins[] = {P_TWI0_SCL, P_TWI0_SDA, 0};
 
 static struct resource bfin_twi0_resource[] = {
@@ -556,25 +553,25 @@ static struct platform_device i2c_bfin_twi_device = {
 #endif
 
 static struct i2c_board_info __initdata bfin_i2c_board_info[] = {
-#if defined(CONFIG_BFIN_TWI_LCD) || defined(CONFIG_BFIN_TWI_LCD_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_TWI_LCD)
         {
                 I2C_BOARD_INFO("pcf8574_lcd", 0x22),
         },
 #endif
-#if defined(CONFIG_INPUT_PCF8574) || defined(CONFIG_INPUT_PCF8574_MODULE)
+#if IS_ENABLED(CONFIG_INPUT_PCF8574)
         {
                 I2C_BOARD_INFO("pcf8574_keypad", 0x27),
                 .irq = IRQ_PF8,
         },
 #endif
-#if defined(CONFIG_SND_SOC_SSM2602) || defined(CONFIG_SND_SOC_SSM2602_MODULE)
+#if IS_ENABLED(CONFIG_SND_SOC_SSM2602)
         {
                 I2C_BOARD_INFO("ssm2602", 0x1b),
         },
 #endif
 };
 
-#if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN_SPORT)
 #ifdef CONFIG_SERIAL_BFIN_SPORT0_UART
 static struct resource bfin_sport0_uart_resources[] = {
         {
@@ -645,7 +642,7 @@ static struct platform_device bfin_sport1_uart_device = {
 #endif
 #endif
 
-#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
+#if IS_ENABLED(CONFIG_KEYBOARD_GPIO)
 #include <linux/input.h>
 #include <linux/gpio_keys.h>
 
@@ -667,7 +664,7 @@ static struct platform_device bfin_device_gpiokeys = {
 };
 #endif
 
-#if defined(CONFIG_SDH_BFIN) || defined(CONFIG_SDH_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_SDH_BFIN)
 
 static struct bfin_sd_host bfin_sdh_data = {
         .dma_chan = CH_RSI,
@@ -710,24 +707,24 @@ static struct platform_device *stamp_devices[] __initdata = {
 
         &bfin_dpmc,
 
-#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_RTC_DRV_BFIN)
         &rtc_device,
 #endif
 
-#if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_MAC)
         &bfin_mii_bus,
         &bfin_mac_device,
-#if defined(CONFIG_NET_DSA_KSZ8893M) || defined(CONFIG_NET_DSA_KSZ8893M_MODULE)
+#if IS_ENABLED(CONFIG_NET_DSA_KSZ8893M)
         &ksz8893m_switch_device,
 #endif
 #endif
 
-#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
+#if IS_ENABLED(CONFIG_SPI_BFIN5XX)
         &bfin_spi0_device,
         &bfin_spi1_device,
 #endif
 
-#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN)
 #ifdef CONFIG_SERIAL_BFIN_UART0
         &bfin_uart0_device,
 #endif
@@ -736,7 +733,7 @@ static struct platform_device *stamp_devices[] __initdata = {
 #endif
 #endif
 
-#if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_SIR)
 #ifdef CONFIG_BFIN_SIR0
         &bfin_sir0_device,
 #endif
@@ -745,15 +742,15 @@ static struct platform_device *stamp_devices[] __initdata = {
 #endif
 #endif
 
-#if defined(CONFIG_I2C_BLACKFIN_TWI) || defined(CONFIG_I2C_BLACKFIN_TWI_MODULE)
+#if IS_ENABLED(CONFIG_I2C_BLACKFIN_TWI)
         &i2c_bfin_twi_device,
 #endif
 
-#if defined(CONFIG_SND_BF5XX_I2S) || defined(CONFIG_SND_BF5XX_I2S_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_I2S)
         &bfin_i2s,
 #endif
 
-#if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN_SPORT)
 #ifdef CONFIG_SERIAL_BFIN_SPORT0_UART
         &bfin_sport0_uart_device,
 #endif
@@ -762,15 +759,15 @@ static struct platform_device *stamp_devices[] __initdata = {
 #endif
 #endif
 
-#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
+#if IS_ENABLED(CONFIG_KEYBOARD_GPIO)
         &bfin_device_gpiokeys,
 #endif
 
-#if defined(CONFIG_SDH_BFIN) || defined(CONFIG_SDH_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_SDH_BFIN)
         &bf51x_sdh_device,
 #endif
 
-#if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
+#if IS_ENABLED(CONFIG_MTD_PHYSMAP)
         &ezbrd_flash_device,
 #endif
 };
@@ -784,7 +781,7 @@ static int __init ezbrd_init(void)
         spi_register_board_info(bfin_spi_board_info, ARRAY_SIZE(bfin_spi_board_info));
         /* setup BF518-EZBRD GPIO pin PG11 to AMS2, PG15 to AMS3. */
         peripheral_request(P_AMS2, "ParaFlash");
-#if !defined(CONFIG_SPI_BFIN5XX) && !defined(CONFIG_SPI_BFIN5XX_MODULE)
+#if !IS_ENABLED(CONFIG_SPI_BFIN5XX)
         peripheral_request(P_AMS3, "ParaFlash");
 #endif
         return 0;
diff --git a/arch/blackfin/mach-bf518/boards/tcm-bf518.c b/arch/blackfin/mach-bf518/boards/tcm-bf518.c
index 0bedc737566b..240d5cb1f02c 100644
--- a/arch/blackfin/mach-bf518/boards/tcm-bf518.c
+++ b/arch/blackfin/mach-bf518/boards/tcm-bf518.c
@@ -36,7 +36,7 @@ const char bfin_board_name[] = "Bluetechnix TCM-BF518";
  *  Driver needs to know address, irq and flag pin.
  */
 
-#if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
+#if IS_ENABLED(CONFIG_MTD_PHYSMAP)
 static struct mtd_partition tcm_partitions[] = {
         {
                 .name       = "bootloader(nor)",
@@ -73,14 +73,14 @@ static struct platform_device tcm_flash_device = {
 };
 #endif
 
-#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_RTC_DRV_BFIN)
 static struct platform_device rtc_device = {
         .name = "rtc-bfin",
         .id   = -1,
 };
 #endif
 
-#if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_MAC)
 #include <linux/bfin_mac.h>
 static const unsigned short bfin_mac_peripherals[] = P_MII0;
 
@@ -113,8 +113,7 @@ static struct platform_device bfin_mac_device = {
 };
 #endif
 
-#if defined(CONFIG_MTD_M25P80) \
-        || defined(CONFIG_MTD_M25P80_MODULE)
+#if IS_ENABLED(CONFIG_MTD_M25P80)
 static struct mtd_partition bfin_spi_flash_partitions[] = {
         {
                 .name = "bootloader(spi)",
@@ -141,13 +140,13 @@ static struct bfin5xx_spi_chip spi_flash_chip_info = {
 };
 #endif
 
-#if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
+#if IS_ENABLED(CONFIG_MMC_SPI)
 static struct bfin5xx_spi_chip mmc_spi_chip_info = {
         .enable_dma = 0,
 };
 #endif
 
-#if defined(CONFIG_TOUCHSCREEN_AD7877) || defined(CONFIG_TOUCHSCREEN_AD7877_MODULE)
+#if IS_ENABLED(CONFIG_TOUCHSCREEN_AD7877)
 static const struct ad7877_platform_data bfin_ad7877_ts_info = {
         .model                  = 7877,
         .vref_delay_usecs       = 50,   /* internal, no capacitor */
@@ -164,8 +163,7 @@ static const struct ad7877_platform_data bfin_ad7877_ts_info = {
 #endif
 
 static struct spi_board_info bfin_spi_board_info[] __initdata = {
-#if defined(CONFIG_MTD_M25P80) \
-        || defined(CONFIG_MTD_M25P80_MODULE)
+#if IS_ENABLED(CONFIG_MTD_M25P80)
         {
                 /* the modalias must be the same as spi device driver name */
                 .modalias = "m25p80", /* Name of spi_driver for this device */
@@ -178,7 +176,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
         },
 #endif
 
-#if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
+#if IS_ENABLED(CONFIG_MMC_SPI)
         {
                 .modalias = "mmc_spi",
                 .max_speed_hz = 20000000,     /* max spi clock (SCK) speed in HZ */
@@ -188,7 +186,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .mode = SPI_MODE_3,
         },
 #endif
-#if defined(CONFIG_TOUCHSCREEN_AD7877) || defined(CONFIG_TOUCHSCREEN_AD7877_MODULE)
+#if IS_ENABLED(CONFIG_TOUCHSCREEN_AD7877)
         {
                 .modalias               = "ad7877",
                 .platform_data          = &bfin_ad7877_ts_info,
@@ -198,7 +196,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .chip_select  = 2,
         },
 #endif
-#if defined(CONFIG_SND_SOC_WM8731) || defined(CONFIG_SND_SOC_WM8731_MODULE) \
+#if IS_ENABLED(CONFIG_SND_SOC_WM8731) \
          && defined(CONFIG_SND_SOC_WM8731_SPI)
         {
                 .modalias       = "wm8731",
@@ -208,7 +206,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .mode = SPI_MODE_0,
         },
 #endif
-#if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
+#if IS_ENABLED(CONFIG_SPI_SPIDEV)
         {
                 .modalias = "spidev",
                 .max_speed_hz = 3125000,     /* max spi clock (SCK) speed in HZ */
@@ -216,7 +214,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .chip_select = 1,
         },
 #endif
-#if defined(CONFIG_FB_BFIN_LQ035Q1) || defined(CONFIG_FB_BFIN_LQ035Q1_MODULE)
+#if IS_ENABLED(CONFIG_FB_BFIN_LQ035Q1)
         {
                 .modalias = "bfin-lq035q1-spi",
                 .max_speed_hz = 20000000,     /* max spi clock (SCK) speed in HZ */
@@ -228,7 +226,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
 };
 
 /* SPI controller data */
-#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
+#if IS_ENABLED(CONFIG_SPI_BFIN5XX)
 /* SPI (0) */
 static struct bfin5xx_spi_master bfin_spi0_info = {
         .num_chipselect = 6,
@@ -300,7 +298,7 @@ static struct platform_device bfin_spi1_device = {
 };
 #endif  /* spi master and devices */
 
-#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN)
 #ifdef CONFIG_SERIAL_BFIN_UART0
 static struct resource bfin_uart0_resources[] = {
         {
@@ -399,7 +397,7 @@ static struct platform_device bfin_uart1_device = {
 #endif
 #endif
 
-#if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_SIR)
 #ifdef CONFIG_BFIN_SIR0
 static struct resource bfin_sir0_resources[] = {
         {
@@ -454,7 +452,7 @@ static struct platform_device bfin_sir1_device = {
 #endif
 #endif
 
-#if defined(CONFIG_I2C_BLACKFIN_TWI) || defined(CONFIG_I2C_BLACKFIN_TWI_MODULE)
+#if IS_ENABLED(CONFIG_I2C_BLACKFIN_TWI)
 static const u16 bfin_twi0_pins[] = {P_TWI0_SCL, P_TWI0_SDA, 0};
 
 static struct resource bfin_twi0_resource[] = {
@@ -482,12 +480,12 @@ static struct platform_device i2c_bfin_twi_device = {
 #endif
 
 static struct i2c_board_info __initdata bfin_i2c_board_info[] = {
-#if defined(CONFIG_BFIN_TWI_LCD) || defined(CONFIG_BFIN_TWI_LCD_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_TWI_LCD)
         {
                 I2C_BOARD_INFO("pcf8574_lcd", 0x22),
         },
 #endif
-#if defined(CONFIG_INPUT_PCF8574) || defined(CONFIG_INPUT_PCF8574_MODULE)
+#if IS_ENABLED(CONFIG_INPUT_PCF8574)
         {
                 I2C_BOARD_INFO("pcf8574_keypad", 0x27),
                 .irq = IRQ_PF8,
@@ -495,7 +493,7 @@ static struct i2c_board_info __initdata bfin_i2c_board_info[] = {
 #endif
 };
 
-#if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN_SPORT)
 #ifdef CONFIG_SERIAL_BFIN_SPORT0_UART
 static struct resource bfin_sport0_uart_resources[] = {
         {
@@ -566,7 +564,7 @@ static struct platform_device bfin_sport1_uart_device = {
 #endif
 #endif
 
-#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
+#if IS_ENABLED(CONFIG_KEYBOARD_GPIO)
 #include <linux/input.h>
 #include <linux/gpio_keys.h>
 
@@ -588,7 +586,7 @@ static struct platform_device bfin_device_gpiokeys = {
 };
 #endif
 
-#if defined(CONFIG_SDH_BFIN) || defined(CONFIG_SDH_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_SDH_BFIN)
 
 static struct bfin_sd_host bfin_sdh_data = {
         .dma_chan = CH_RSI,
@@ -631,21 +629,21 @@ static struct platform_device *tcm_devices[] __initdata = {
 
         &bfin_dpmc,
 
-#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_RTC_DRV_BFIN)
         &rtc_device,
 #endif
 
-#if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_MAC)
         &bfin_mii_bus,
         &bfin_mac_device,
 #endif
 
-#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
+#if IS_ENABLED(CONFIG_SPI_BFIN5XX)
         &bfin_spi0_device,
         &bfin_spi1_device,
 #endif
 
-#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN)
 #ifdef CONFIG_SERIAL_BFIN_UART0
         &bfin_uart0_device,
 #endif
@@ -654,7 +652,7 @@ static struct platform_device *tcm_devices[] __initdata = {
 #endif
 #endif
 
-#if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_SIR)
 #ifdef CONFIG_BFIN_SIR0
         &bfin_sir0_device,
 #endif
@@ -663,11 +661,11 @@ static struct platform_device *tcm_devices[] __initdata = {
 #endif
 #endif
 
-#if defined(CONFIG_I2C_BLACKFIN_TWI) || defined(CONFIG_I2C_BLACKFIN_TWI_MODULE)
+#if IS_ENABLED(CONFIG_I2C_BLACKFIN_TWI)
         &i2c_bfin_twi_device,
 #endif
 
-#if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN_SPORT)
 #ifdef CONFIG_SERIAL_BFIN_SPORT0_UART
         &bfin_sport0_uart_device,
 #endif
@@ -676,15 +674,15 @@ static struct platform_device *tcm_devices[] __initdata = {
 #endif
 #endif
 
-#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
+#if IS_ENABLED(CONFIG_KEYBOARD_GPIO)
         &bfin_device_gpiokeys,
 #endif
 
-#if defined(CONFIG_SDH_BFIN) || defined(CONFIG_SDH_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_SDH_BFIN)
         &bf51x_sdh_device,
 #endif
 
-#if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
+#if IS_ENABLED(CONFIG_MTD_PHYSMAP)
         &tcm_flash_device,
 #endif
 };
diff --git a/arch/blackfin/mach-bf527/boards/ad7160eval.c b/arch/blackfin/mach-bf527/boards/ad7160eval.c
index 1e7be62fccb6..9501bd8d9cd1 100644
--- a/arch/blackfin/mach-bf527/boards/ad7160eval.c
+++ b/arch/blackfin/mach-bf527/boards/ad7160eval.c
@@ -37,7 +37,7 @@ const char bfin_board_name[] = "ADI BF527-AD7160EVAL";
  *  Driver needs to know address, irq and flag pin.
  */
 
-#if defined(CONFIG_USB_MUSB_HDRC) || defined(CONFIG_USB_MUSB_HDRC_MODULE)
+#if IS_ENABLED(CONFIG_USB_MUSB_HDRC)
 static struct resource musb_resources[] = {
         [0] = {
                 .start  = 0xffc03800,
@@ -97,7 +97,7 @@ static struct platform_device musb_device = {
 };
 #endif
 
-#if defined(CONFIG_FB_BFIN_RA158Z) || defined(CONFIG_FB_BFIN_RA158Z_MODULE)
+#if IS_ENABLED(CONFIG_FB_BFIN_RA158Z)
 static struct resource bf52x_ra158z_resources[] = {
         {
                 .start = IRQ_PPI_ERROR,
@@ -114,7 +114,7 @@ static struct platform_device bf52x_ra158z_device = {
 };
 #endif
 
-#if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
+#if IS_ENABLED(CONFIG_MTD_PHYSMAP)
 static struct mtd_partition ad7160eval_partitions[] = {
         {
                 .name       = "bootloader(nor)",
@@ -154,7 +154,7 @@ static struct platform_device ad7160eval_flash_device = {
 };
 #endif
 
-#if defined(CONFIG_MTD_NAND_BF5XX) || defined(CONFIG_MTD_NAND_BF5XX_MODULE)
+#if IS_ENABLED(CONFIG_MTD_NAND_BF5XX)
 static struct mtd_partition partition_info[] = {
         {
                 .name = "linux kernel(nand)",
@@ -200,14 +200,14 @@ static struct platform_device bf5xx_nand_device = {
 };
 #endif
 
-#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_RTC_DRV_BFIN)
 static struct platform_device rtc_device = {
         .name = "rtc-bfin",
         .id   = -1,
 };
 #endif
 
-#if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_MAC)
 #include <linux/bfin_mac.h>
 static const unsigned short bfin_mac_peripherals[] = P_RMII0;
 
@@ -241,8 +241,7 @@ static struct platform_device bfin_mac_device = {
 #endif
 
 
-#if defined(CONFIG_MTD_M25P80) \
-        || defined(CONFIG_MTD_M25P80_MODULE)
+#if IS_ENABLED(CONFIG_MTD_M25P80)
 static struct mtd_partition bfin_spi_flash_partitions[] = {
         {
                 .name = "bootloader(spi)",
@@ -269,13 +268,13 @@ static struct bfin5xx_spi_chip spi_flash_chip_info = {
 };
 #endif
 
-#if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
+#if IS_ENABLED(CONFIG_MMC_SPI)
 static struct bfin5xx_spi_chip  mmc_spi_chip_info = {
         .enable_dma = 0,
 };
 #endif
 
-#if defined(CONFIG_SND_BF5XX_I2S) || defined(CONFIG_SND_BF5XX_I2S_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_I2S)
 static struct platform_device bfin_i2s = {
         .name = "bfin-i2s",
         .id = CONFIG_SND_BF5XX_SPORT_NUM,
@@ -284,8 +283,7 @@ static struct platform_device bfin_i2s = {
 #endif
 
 static struct spi_board_info bfin_spi_board_info[] __initdata = {
-#if defined(CONFIG_MTD_M25P80) \
-        || defined(CONFIG_MTD_M25P80_MODULE)
+#if IS_ENABLED(CONFIG_MTD_M25P80)
         {
                 /* the modalias must be the same as spi device driver name */
                 .modalias = "m25p80", /* Name of spi_driver for this device */
@@ -297,8 +295,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .mode = SPI_MODE_3,
         },
 #endif
-#if defined(CONFIG_SND_BF5XX_SOC_AD183X) \
-        || defined(CONFIG_SND_BF5XX_SOC_AD183X_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_SOC_AD183X)
         {
                 .modalias = "ad183x",
                 .max_speed_hz = 3125000,     /* max spi clock (SCK) speed in HZ */
@@ -306,7 +303,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .chip_select = 4,
         },
 #endif
-#if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
+#if IS_ENABLED(CONFIG_MMC_SPI)
         {
                 .modalias = "mmc_spi",
                 .max_speed_hz = 30000000,     /* max spi clock (SCK) speed in HZ */
@@ -316,7 +313,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .mode = SPI_MODE_3,
         },
 #endif
-#if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
+#if IS_ENABLED(CONFIG_SPI_SPIDEV)
         {
                 .modalias = "spidev",
                 .max_speed_hz = 3125000,     /* max spi clock (SCK) speed in HZ */
@@ -326,7 +323,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
 #endif
 };
 
-#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
+#if IS_ENABLED(CONFIG_SPI_BFIN5XX)
 /* SPI controller data */
 static struct bfin5xx_spi_master bfin_spi0_info = {
         .num_chipselect = MAX_CTRL_CS + MAX_BLACKFIN_GPIOS,
@@ -364,7 +361,7 @@ static struct platform_device bfin_spi0_device = {
 };
 #endif  /* spi master and devices */
 
-#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN)
 #ifdef CONFIG_SERIAL_BFIN_UART0
 static struct resource bfin_uart0_resources[] = {
         {
@@ -475,7 +472,7 @@ static struct platform_device bfin_uart1_device = {
 #endif
 #endif
 
-#if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_SIR)
 #ifdef CONFIG_BFIN_SIR0
 static struct resource bfin_sir0_resources[] = {
         {
@@ -530,7 +527,7 @@ static struct platform_device bfin_sir1_device = {
 #endif
 #endif
 
-#if defined(CONFIG_TOUCHSCREEN_AD7160) || defined(CONFIG_TOUCHSCREEN_AD7160_MODULE)
+#if IS_ENABLED(CONFIG_TOUCHSCREEN_AD7160)
 #include <linux/input/ad7160.h>
 static const struct ad7160_platform_data bfin_ad7160_ts_info = {
         .sensor_x_res = 854,
@@ -560,7 +557,7 @@ static const struct ad7160_platform_data bfin_ad7160_ts_info = {
 };
 #endif
 
-#if defined(CONFIG_I2C_BLACKFIN_TWI) || defined(CONFIG_I2C_BLACKFIN_TWI_MODULE)
+#if IS_ENABLED(CONFIG_I2C_BLACKFIN_TWI)
 static const u16 bfin_twi0_pins[] = {P_TWI0_SCL, P_TWI0_SDA, 0};
 
 static struct resource bfin_twi0_resource[] = {
@@ -588,7 +585,7 @@ static struct platform_device i2c_bfin_twi_device = {
 #endif
 
 static struct i2c_board_info __initdata bfin_i2c_board_info[] = {
-#if defined(CONFIG_TOUCHSCREEN_AD7160) || defined(CONFIG_TOUCHSCREEN_AD7160_MODULE)
+#if IS_ENABLED(CONFIG_TOUCHSCREEN_AD7160)
         {
                 I2C_BOARD_INFO("ad7160", 0x33),
                 .irq = IRQ_PH1,
@@ -597,7 +594,7 @@ static struct i2c_board_info __initdata bfin_i2c_board_info[] = {
 #endif
 };
 
-#if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN_SPORT)
 #ifdef CONFIG_SERIAL_BFIN_SPORT0_UART
 static struct resource bfin_sport0_uart_resources[] = {
         {
@@ -668,7 +665,7 @@ static struct platform_device bfin_sport1_uart_device = {
 #endif
 #endif
 
-#if defined(CONFIG_INPUT_BFIN_ROTARY) || defined(CONFIG_INPUT_BFIN_ROTARY_MODULE)
+#if IS_ENABLED(CONFIG_INPUT_BFIN_ROTARY)
 #include <asm/bfin_rotary.h>
 
 static struct bfin_rotary_platform_data bfin_rotary_data = {
@@ -725,28 +722,28 @@ static struct platform_device *stamp_devices[] __initdata = {
 
         &bfin_dpmc,
 
-#if defined(CONFIG_MTD_NAND_BF5XX) || defined(CONFIG_MTD_NAND_BF5XX_MODULE)
+#if IS_ENABLED(CONFIG_MTD_NAND_BF5XX)
         &bf5xx_nand_device,
 #endif
 
-#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_RTC_DRV_BFIN)
         &rtc_device,
 #endif
 
-#if defined(CONFIG_USB_MUSB_HDRC) || defined(CONFIG_USB_MUSB_HDRC_MODULE)
+#if IS_ENABLED(CONFIG_USB_MUSB_HDRC)
         &musb_device,
 #endif
 
-#if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_MAC)
         &bfin_mii_bus,
         &bfin_mac_device,
 #endif
 
-#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
+#if IS_ENABLED(CONFIG_SPI_BFIN5XX)
         &bfin_spi0_device,
 #endif
 
-#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN)
 #ifdef CONFIG_SERIAL_BFIN_UART0
         &bfin_uart0_device,
 #endif
@@ -755,11 +752,11 @@ static struct platform_device *stamp_devices[] __initdata = {
 #endif
 #endif
 
-#if defined(CONFIG_FB_BFIN_RA158Z) || defined(CONFIG_FB_BFIN_RA158Z_MODULE)
+#if IS_ENABLED(CONFIG_FB_BFIN_RA158Z)
         &bf52x_ra158z_device,
 #endif
 
-#if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_SIR)
 #ifdef CONFIG_BFIN_SIR0
         &bfin_sir0_device,
 #endif
@@ -768,11 +765,11 @@ static struct platform_device *stamp_devices[] __initdata = {
 #endif
 #endif
 
-#if defined(CONFIG_I2C_BLACKFIN_TWI) || defined(CONFIG_I2C_BLACKFIN_TWI_MODULE)
+#if IS_ENABLED(CONFIG_I2C_BLACKFIN_TWI)
         &i2c_bfin_twi_device,
 #endif
 
-#if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN_SPORT)
 #ifdef CONFIG_SERIAL_BFIN_SPORT0_UART
         &bfin_sport0_uart_device,
 #endif
@@ -781,15 +778,15 @@ static struct platform_device *stamp_devices[] __initdata = {
 #endif
 #endif
 
-#if defined(CONFIG_INPUT_BFIN_ROTARY) || defined(CONFIG_INPUT_BFIN_ROTARY_MODULE)
+#if IS_ENABLED(CONFIG_INPUT_BFIN_ROTARY)
         &bfin_rotary_device,
 #endif
 
-#if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
+#if IS_ENABLED(CONFIG_MTD_PHYSMAP)
         &ad7160eval_flash_device,
 #endif
 
-#if defined(CONFIG_SND_BF5XX_I2S) || defined(CONFIG_SND_BF5XX_I2S_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_I2S)
         &bfin_i2s,
 #endif
 };
diff --git a/arch/blackfin/mach-bf527/boards/cm_bf527.c b/arch/blackfin/mach-bf527/boards/cm_bf527.c
index 413d0132b66f..b1004b35db36 100644
--- a/arch/blackfin/mach-bf527/boards/cm_bf527.c
+++ b/arch/blackfin/mach-bf527/boards/cm_bf527.c
@@ -37,7 +37,7 @@ const char bfin_board_name[] = "Bluetechnix CM-BF527";
  *  Driver needs to know address, irq and flag pin.
  */
 
-#if defined(CONFIG_USB_ISP1760_HCD) || defined(CONFIG_USB_ISP1760_HCD_MODULE)
+#if IS_ENABLED(CONFIG_USB_ISP1760_HCD)
 #include <linux/usb/isp1760.h>
 static struct resource bfin_isp1760_resources[] = {
         [0] = {
@@ -72,7 +72,7 @@ static struct platform_device bfin_isp1760_device = {
 };
 #endif
 
-#if defined(CONFIG_USB_MUSB_HDRC) || defined(CONFIG_USB_MUSB_HDRC_MODULE)
+#if IS_ENABLED(CONFIG_USB_MUSB_HDRC)
 static struct resource musb_resources[] = {
         [0] = {
                 .start  = 0xffc03800,
@@ -134,7 +134,7 @@ static struct platform_device musb_device = {
 };
 #endif
 
-#if defined(CONFIG_MTD_NAND_BF5XX) || defined(CONFIG_MTD_NAND_BF5XX_MODULE)
+#if IS_ENABLED(CONFIG_MTD_NAND_BF5XX)
 static struct mtd_partition partition_info[] = {
         {
                 .name = "linux kernel(nand)",
@@ -180,7 +180,7 @@ static struct platform_device bf5xx_nand_device = {
 };
 #endif
 
-#if defined(CONFIG_BFIN_CFPCMCIA) || defined(CONFIG_BFIN_CFPCMCIA_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_CFPCMCIA)
 static struct resource bfin_pcmcia_cf_resources[] = {
         {
                 .start = 0x20310000, /* IO PORT */
@@ -209,14 +209,14 @@ static struct platform_device bfin_pcmcia_cf_device = {
 };
 #endif
 
-#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_RTC_DRV_BFIN)
 static struct platform_device rtc_device = {
         .name = "rtc-bfin",
         .id   = -1,
 };
 #endif
 
-#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
+#if IS_ENABLED(CONFIG_SMC91X)
 #include <linux/smc91x.h>
 
 static struct smc91x_platdata smc91x_info = {
@@ -249,7 +249,7 @@ static struct platform_device smc91x_device = {
 };
 #endif
 
-#if defined(CONFIG_DM9000) || defined(CONFIG_DM9000_MODULE)
+#if IS_ENABLED(CONFIG_DM9000)
 static struct resource dm9000_resources[] = {
         [0] = {
                 .start  = 0x203FB800,
@@ -276,7 +276,7 @@ static struct platform_device dm9000_device = {
 };
 #endif
 
-#if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_MAC)
 #include <linux/bfin_mac.h>
 static const unsigned short bfin_mac_peripherals[] = P_RMII0;
 
@@ -309,7 +309,7 @@ static struct platform_device bfin_mac_device = {
 };
 #endif
 
-#if defined(CONFIG_USB_NET2272) || defined(CONFIG_USB_NET2272_MODULE)
+#if IS_ENABLED(CONFIG_USB_NET2272)
 static struct resource net2272_bfin_resources[] = {
         {
                 .start = 0x20300000,
@@ -330,8 +330,7 @@ static struct platform_device net2272_bfin_device = {
 };
 #endif
 
-#if defined(CONFIG_MTD_M25P80) \
-        || defined(CONFIG_MTD_M25P80_MODULE)
+#if IS_ENABLED(CONFIG_MTD_M25P80)
 static struct mtd_partition bfin_spi_flash_partitions[] = {
         {
                 .name = "bootloader(spi)",
@@ -358,13 +357,13 @@ static struct bfin5xx_spi_chip spi_flash_chip_info = {
 };
 #endif
 
-#if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
+#if IS_ENABLED(CONFIG_MMC_SPI)
 static struct bfin5xx_spi_chip  mmc_spi_chip_info = {
         .enable_dma = 0,
 };
 #endif
 
-#if defined(CONFIG_TOUCHSCREEN_AD7877) || defined(CONFIG_TOUCHSCREEN_AD7877_MODULE)
+#if IS_ENABLED(CONFIG_TOUCHSCREEN_AD7877)
 static const struct ad7877_platform_data bfin_ad7877_ts_info = {
         .model                  = 7877,
         .vref_delay_usecs       = 50,   /* internal, no capacitor */
@@ -381,8 +380,7 @@ static const struct ad7877_platform_data bfin_ad7877_ts_info = {
 #endif
 
 static struct spi_board_info bfin_spi_board_info[] __initdata = {
-#if defined(CONFIG_MTD_M25P80) \
-        || defined(CONFIG_MTD_M25P80_MODULE)
+#if IS_ENABLED(CONFIG_MTD_M25P80)
         {
                 /* the modalias must be the same as spi device driver name */
                 .modalias = "m25p80", /* Name of spi_driver for this device */
@@ -395,8 +393,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
         },
 #endif
 
-#if defined(CONFIG_SND_BF5XX_SOC_AD183X) \
-        || defined(CONFIG_SND_BF5XX_SOC_AD183X_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_SOC_AD183X)
         {
                 .modalias = "ad183x",
                 .max_speed_hz = 3125000,     /* max spi clock (SCK) speed in HZ */
@@ -404,7 +401,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .chip_select = 4,
         },
 #endif
-#if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
+#if IS_ENABLED(CONFIG_MMC_SPI)
         {
                 .modalias = "mmc_spi",
                 .max_speed_hz = 20000000,     /* max spi clock (SCK) speed in HZ */
@@ -414,7 +411,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .mode = SPI_MODE_3,
         },
 #endif
-#if defined(CONFIG_TOUCHSCREEN_AD7877) || defined(CONFIG_TOUCHSCREEN_AD7877_MODULE)
+#if IS_ENABLED(CONFIG_TOUCHSCREEN_AD7877)
         {
                 .modalias               = "ad7877",
                 .platform_data          = &bfin_ad7877_ts_info,
@@ -424,7 +421,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .chip_select  = 2,
         },
 #endif
-#if defined(CONFIG_SND_SOC_WM8731) || defined(CONFIG_SND_SOC_WM8731_MODULE) \
+#if IS_ENABLED(CONFIG_SND_SOC_WM8731) \
          && defined(CONFIG_SND_SOC_WM8731_SPI)
         {
                 .modalias       = "wm8731",
@@ -434,7 +431,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .mode = SPI_MODE_0,
         },
 #endif
-#if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
+#if IS_ENABLED(CONFIG_SPI_SPIDEV)
         {
                 .modalias = "spidev",
                 .max_speed_hz = 3125000,     /* max spi clock (SCK) speed in HZ */
@@ -444,7 +441,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
 #endif
 };
 
-#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
+#if IS_ENABLED(CONFIG_SPI_BFIN5XX)
 /* SPI controller data */
 static struct bfin5xx_spi_master bfin_spi0_info = {
         .num_chipselect = 8,
@@ -482,7 +479,7 @@ static struct platform_device bfin_spi0_device = {
 };
 #endif  /* spi master and devices */
 
-#if defined(CONFIG_MTD_GPIO_ADDR) || defined(CONFIG_MTD_GPIO_ADDR_MODULE)
+#if IS_ENABLED(CONFIG_MTD_GPIO_ADDR)
 static struct mtd_partition cm_partitions[] = {
         {
                 .name   = "bootloader(nor)",
@@ -531,7 +528,7 @@ static struct platform_device cm_flash_device = {
 };
 #endif
 
-#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN)
 #ifdef CONFIG_SERIAL_BFIN_UART0
 static struct resource bfin_uart0_resources[] = {
         {
@@ -642,7 +639,7 @@ static struct platform_device bfin_uart1_device = {
 #endif
 #endif
 
-#if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_SIR)
 #ifdef CONFIG_BFIN_SIR0
 static struct resource bfin_sir0_resources[] = {
         {
@@ -697,7 +694,7 @@ static struct platform_device bfin_sir1_device = {
 #endif
 #endif
 
-#if defined(CONFIG_I2C_BLACKFIN_TWI) || defined(CONFIG_I2C_BLACKFIN_TWI_MODULE)
+#if IS_ENABLED(CONFIG_I2C_BLACKFIN_TWI)
 static const u16 bfin_twi0_pins[] = {P_TWI0_SCL, P_TWI0_SDA, 0};
 
 static struct resource bfin_twi0_resource[] = {
@@ -725,25 +722,25 @@ static struct platform_device i2c_bfin_twi_device = {
 #endif
 
 static struct i2c_board_info __initdata bfin_i2c_board_info[] = {
-#if defined(CONFIG_BFIN_TWI_LCD) || defined(CONFIG_BFIN_TWI_LCD_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_TWI_LCD)
         {
                 I2C_BOARD_INFO("pcf8574_lcd", 0x22),
         },
 #endif
-#if defined(CONFIG_INPUT_PCF8574) || defined(CONFIG_INPUT_PCF8574_MODULE)
+#if IS_ENABLED(CONFIG_INPUT_PCF8574)
         {
                 I2C_BOARD_INFO("pcf8574_keypad", 0x27),
                 .irq = IRQ_PF8,
         },
 #endif
-#if defined(CONFIG_FB_BFIN_7393) || defined(CONFIG_FB_BFIN_7393_MODULE)
+#if IS_ENABLED(CONFIG_FB_BFIN_7393)
         {
                 I2C_BOARD_INFO("bfin-adv7393", 0x2B),
         },
 #endif
 };
 
-#if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN_SPORT)
 #ifdef CONFIG_SERIAL_BFIN_SPORT0_UART
 static struct resource bfin_sport0_uart_resources[] = {
         {
@@ -814,7 +811,7 @@ static struct platform_device bfin_sport1_uart_device = {
 #endif
 #endif
 
-#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
+#if IS_ENABLED(CONFIG_KEYBOARD_GPIO)
 #include <linux/input.h>
 #include <linux/gpio_keys.h>
 
@@ -861,48 +858,48 @@ static struct platform_device *cmbf527_devices[] __initdata = {
 
         &bfin_dpmc,
 
-#if defined(CONFIG_MTD_NAND_BF5XX) || defined(CONFIG_MTD_NAND_BF5XX_MODULE)
+#if IS_ENABLED(CONFIG_MTD_NAND_BF5XX)
         &bf5xx_nand_device,
 #endif
 
-#if defined(CONFIG_BFIN_CFPCMCIA) || defined(CONFIG_BFIN_CFPCMCIA_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_CFPCMCIA)
         &bfin_pcmcia_cf_device,
 #endif
 
-#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_RTC_DRV_BFIN)
         &rtc_device,
 #endif
 
-#if defined(CONFIG_USB_ISP1760_HCD) || defined(CONFIG_USB_ISP1760_HCD_MODULE)
+#if IS_ENABLED(CONFIG_USB_ISP1760_HCD)
         &bfin_isp1760_device,
 #endif
 
-#if defined(CONFIG_USB_MUSB_HDRC) || defined(CONFIG_USB_MUSB_HDRC_MODULE)
+#if IS_ENABLED(CONFIG_USB_MUSB_HDRC)
         &musb_device,
 #endif
 
-#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
+#if IS_ENABLED(CONFIG_SMC91X)
         &smc91x_device,
 #endif
 
-#if defined(CONFIG_DM9000) || defined(CONFIG_DM9000_MODULE)
+#if IS_ENABLED(CONFIG_DM9000)
         &dm9000_device,
 #endif
 
-#if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_MAC)
         &bfin_mii_bus,
         &bfin_mac_device,
 #endif
 
-#if defined(CONFIG_USB_NET2272) || defined(CONFIG_USB_NET2272_MODULE)
+#if IS_ENABLED(CONFIG_USB_NET2272)
         &net2272_bfin_device,
 #endif
 
-#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
+#if IS_ENABLED(CONFIG_SPI_BFIN5XX)
         &bfin_spi0_device,
 #endif
 
-#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN)
 #ifdef CONFIG_SERIAL_BFIN_UART0
         &bfin_uart0_device,
 #endif
@@ -911,7 +908,7 @@ static struct platform_device *cmbf527_devices[] __initdata = {
 #endif
 #endif
 
-#if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_SIR)
 #ifdef CONFIG_BFIN_SIR0
         &bfin_sir0_device,
 #endif
@@ -920,11 +917,11 @@ static struct platform_device *cmbf527_devices[] __initdata = {
 #endif
 #endif
 
-#if defined(CONFIG_I2C_BLACKFIN_TWI) || defined(CONFIG_I2C_BLACKFIN_TWI_MODULE)
+#if IS_ENABLED(CONFIG_I2C_BLACKFIN_TWI)
         &i2c_bfin_twi_device,
 #endif
 
-#if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN_SPORT)
 #ifdef CONFIG_SERIAL_BFIN_SPORT0_UART
         &bfin_sport0_uart_device,
 #endif
@@ -933,11 +930,11 @@ static struct platform_device *cmbf527_devices[] __initdata = {
 #endif
 #endif
 
-#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
+#if IS_ENABLED(CONFIG_KEYBOARD_GPIO)
         &bfin_device_gpiokeys,
 #endif
 
-#if defined(CONFIG_MTD_GPIO_ADDR) || defined(CONFIG_MTD_GPIO_ADDR_MODULE)
+#if IS_ENABLED(CONFIG_MTD_GPIO_ADDR)
         &cm_flash_device,
 #endif
 };
diff --git a/arch/blackfin/mach-bf527/boards/ezbrd.c b/arch/blackfin/mach-bf527/boards/ezbrd.c
index 50bda79194e5..a3a572352769 100644
--- a/arch/blackfin/mach-bf527/boards/ezbrd.c
+++ b/arch/blackfin/mach-bf527/boards/ezbrd.c
@@ -36,7 +36,7 @@ const char bfin_board_name[] = "ADI BF526-EZBRD";
  *  Driver needs to know address, irq and flag pin.
  */
 
-#if defined(CONFIG_USB_MUSB_HDRC) || defined(CONFIG_USB_MUSB_HDRC_MODULE)
+#if IS_ENABLED(CONFIG_USB_MUSB_HDRC)
 static struct resource musb_resources[] = {
         [0] = {
                 .start  = 0xffc03800,
@@ -98,7 +98,7 @@ static struct platform_device musb_device = {
 };
 #endif
 
-#if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
+#if IS_ENABLED(CONFIG_MTD_PHYSMAP)
 static struct mtd_partition ezbrd_partitions[] = {
         {
                 .name       = "bootloader(nor)",
@@ -138,7 +138,7 @@ static struct platform_device ezbrd_flash_device = {
 };
 #endif
 
-#if defined(CONFIG_MTD_NAND_BF5XX) || defined(CONFIG_MTD_NAND_BF5XX_MODULE)
+#if IS_ENABLED(CONFIG_MTD_NAND_BF5XX)
 static struct mtd_partition partition_info[] = {
         {
                 .name = "bootloader(nand)",
@@ -188,7 +188,7 @@ static struct platform_device bf5xx_nand_device = {
 };
 #endif
 
-#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_RTC_DRV_BFIN)
 static struct platform_device rtc_device = {
         .name = "rtc-bfin",
         .id   = -1,
@@ -196,7 +196,7 @@ static struct platform_device rtc_device = {
 #endif
 
 
-#if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_MAC)
 #include <linux/bfin_mac.h>
 static const unsigned short bfin_mac_peripherals[] = P_RMII0;
 
@@ -229,8 +229,7 @@ static struct platform_device bfin_mac_device = {
 };
 #endif
 
-#if defined(CONFIG_MTD_M25P80) \
-        || defined(CONFIG_MTD_M25P80_MODULE)
+#if IS_ENABLED(CONFIG_MTD_M25P80)
 static struct mtd_partition bfin_spi_flash_partitions[] = {
         {
                 .name = "bootloader(spi)",
@@ -257,13 +256,13 @@ static struct bfin5xx_spi_chip spi_flash_chip_info = {
 };
 #endif
 
-#if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
+#if IS_ENABLED(CONFIG_MMC_SPI)
 static struct bfin5xx_spi_chip mmc_spi_chip_info = {
         .enable_dma = 0,
 };
 #endif
 
-#if defined(CONFIG_TOUCHSCREEN_AD7877) || defined(CONFIG_TOUCHSCREEN_AD7877_MODULE)
+#if IS_ENABLED(CONFIG_TOUCHSCREEN_AD7877)
 static const struct ad7877_platform_data bfin_ad7877_ts_info = {
         .model                  = 7877,
         .vref_delay_usecs       = 50,   /* internal, no capacitor */
@@ -279,7 +278,7 @@ static const struct ad7877_platform_data bfin_ad7877_ts_info = {
 };
 #endif
 
-#if defined(CONFIG_TOUCHSCREEN_AD7879) || defined(CONFIG_TOUCHSCREEN_AD7879_MODULE)
+#if IS_ENABLED(CONFIG_TOUCHSCREEN_AD7879)
 #include <linux/spi/ad7879.h>
 static const struct ad7879_platform_data bfin_ad7879_ts_info = {
         .model                  = 7879, /* Model = AD7879 */
@@ -297,8 +296,7 @@ static const struct ad7879_platform_data bfin_ad7879_ts_info = {
 #endif
 
 static struct spi_board_info bfin_spi_board_info[] __initdata = {
-#if defined(CONFIG_MTD_M25P80) \
-        || defined(CONFIG_MTD_M25P80_MODULE)
+#if IS_ENABLED(CONFIG_MTD_M25P80)
         {
                 /* the modalias must be the same as spi device driver name */
                 .modalias = "m25p80", /* Name of spi_driver for this device */
@@ -311,7 +309,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
         },
 #endif
 
-#if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
+#if IS_ENABLED(CONFIG_MMC_SPI)
         {
                 .modalias = "mmc_spi",
                 .max_speed_hz = 25000000,     /* max spi clock (SCK) speed in HZ */
@@ -321,7 +319,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .mode = SPI_MODE_3,
         },
 #endif
-#if defined(CONFIG_TOUCHSCREEN_AD7877) || defined(CONFIG_TOUCHSCREEN_AD7877_MODULE)
+#if IS_ENABLED(CONFIG_TOUCHSCREEN_AD7877)
         {
                 .modalias               = "ad7877",
                 .platform_data          = &bfin_ad7877_ts_info,
@@ -331,7 +329,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .chip_select  = 2,
         },
 #endif
-#if defined(CONFIG_TOUCHSCREEN_AD7879_SPI) || defined(CONFIG_TOUCHSCREEN_AD7879_SPI_MODULE)
+#if IS_ENABLED(CONFIG_TOUCHSCREEN_AD7879_SPI)
         {
                 .modalias = "ad7879",
                 .platform_data = &bfin_ad7879_ts_info,
@@ -342,7 +340,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .mode = SPI_CPHA | SPI_CPOL,
         },
 #endif
-#if defined(CONFIG_SND_SOC_WM8731) || defined(CONFIG_SND_SOC_WM8731_MODULE) \
+#if IS_ENABLED(CONFIG_SND_SOC_WM8731) \
          && defined(CONFIG_SND_SOC_WM8731_SPI)
         {
                 .modalias       = "wm8731",
@@ -352,7 +350,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .mode = SPI_MODE_0,
         },
 #endif
-#if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
+#if IS_ENABLED(CONFIG_SPI_SPIDEV)
         {
                 .modalias = "spidev",
                 .max_speed_hz = 3125000,     /* max spi clock (SCK) speed in HZ */
@@ -360,7 +358,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .chip_select = 1,
         },
 #endif
-#if defined(CONFIG_FB_BFIN_LQ035Q1) || defined(CONFIG_FB_BFIN_LQ035Q1_MODULE)
+#if IS_ENABLED(CONFIG_FB_BFIN_LQ035Q1)
         {
                 .modalias = "bfin-lq035q1-spi",
                 .max_speed_hz = 20000000,     /* max spi clock (SCK) speed in HZ */
@@ -371,7 +369,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
 #endif
 };
 
-#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
+#if IS_ENABLED(CONFIG_SPI_BFIN5XX)
 /* SPI controller data */
 static struct bfin5xx_spi_master bfin_spi0_info = {
         .num_chipselect = 8,
@@ -409,7 +407,7 @@ static struct platform_device bfin_spi0_device = {
 };
 #endif  /* spi master and devices */
 
-#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN)
 #ifdef CONFIG_SERIAL_BFIN_UART0
 static struct resource bfin_uart0_resources[] = {
         {
@@ -520,7 +518,7 @@ static struct platform_device bfin_uart1_device = {
 #endif
 #endif
 
-#if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_SIR)
 #ifdef CONFIG_BFIN_SIR0
 static struct resource bfin_sir0_resources[] = {
         {
@@ -575,7 +573,7 @@ static struct platform_device bfin_sir1_device = {
 #endif
 #endif
 
-#if defined(CONFIG_I2C_BLACKFIN_TWI) || defined(CONFIG_I2C_BLACKFIN_TWI_MODULE)
+#if IS_ENABLED(CONFIG_I2C_BLACKFIN_TWI)
 static const u16 bfin_twi0_pins[] = {P_TWI0_SCL, P_TWI0_SDA, 0};
 
 static struct resource bfin_twi0_resource[] = {
@@ -603,12 +601,12 @@ static struct platform_device i2c_bfin_twi_device = {
 #endif
 
 static struct i2c_board_info __initdata bfin_i2c_board_info[] = {
-#if defined(CONFIG_BFIN_TWI_LCD) || defined(CONFIG_BFIN_TWI_LCD_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_TWI_LCD)
         {
                 I2C_BOARD_INFO("pcf8574_lcd", 0x22),
         },
 #endif
-#if defined(CONFIG_INPUT_PCF8574) || defined(CONFIG_INPUT_PCF8574_MODULE)
+#if IS_ENABLED(CONFIG_INPUT_PCF8574)
         {
                 I2C_BOARD_INFO("pcf8574_keypad", 0x27),
                 .irq = IRQ_PF8,
@@ -616,7 +614,7 @@ static struct i2c_board_info __initdata bfin_i2c_board_info[] = {
 #endif
 };
 
-#if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN_SPORT)
 #ifdef CONFIG_SERIAL_BFIN_SPORT0_UART
 static struct resource bfin_sport0_uart_resources[] = {
         {
@@ -687,7 +685,7 @@ static struct platform_device bfin_sport1_uart_device = {
 #endif
 #endif
 
-#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
+#if IS_ENABLED(CONFIG_KEYBOARD_GPIO)
 #include <linux/input.h>
 #include <linux/gpio_keys.h>
 
@@ -731,7 +729,7 @@ static struct platform_device bfin_dpmc = {
         },
 };
 
-#if defined(CONFIG_FB_BFIN_LQ035Q1) || defined(CONFIG_FB_BFIN_LQ035Q1_MODULE)
+#if IS_ENABLED(CONFIG_FB_BFIN_LQ035Q1)
 #include <asm/bfin-lq035q1.h>
 
 static struct bfin_lq035q1fb_disp_info bfin_lq035q1_data = {
@@ -764,28 +762,28 @@ static struct platform_device *stamp_devices[] __initdata = {
 
         &bfin_dpmc,
 
-#if defined(CONFIG_MTD_NAND_BF5XX) || defined(CONFIG_MTD_NAND_BF5XX_MODULE)
+#if IS_ENABLED(CONFIG_MTD_NAND_BF5XX)
         &bf5xx_nand_device,
 #endif
 
-#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_RTC_DRV_BFIN)
         &rtc_device,
 #endif
 
-#if defined(CONFIG_USB_MUSB_HDRC) || defined(CONFIG_USB_MUSB_HDRC_MODULE)
+#if IS_ENABLED(CONFIG_USB_MUSB_HDRC)
         &musb_device,
 #endif
 
-#if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_MAC)
         &bfin_mii_bus,
         &bfin_mac_device,
 #endif
 
-#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
+#if IS_ENABLED(CONFIG_SPI_BFIN5XX)
         &bfin_spi0_device,
 #endif
 
-#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN)
 #ifdef CONFIG_SERIAL_BFIN_UART0
         &bfin_uart0_device,
 #endif
@@ -794,11 +792,11 @@ static struct platform_device *stamp_devices[] __initdata = {
 #endif
 #endif
 
-#if defined(CONFIG_FB_BFIN_LQ035Q1) || defined(CONFIG_FB_BFIN_LQ035Q1_MODULE)
+#if IS_ENABLED(CONFIG_FB_BFIN_LQ035Q1)
         &bfin_lq035q1_device,
 #endif
 
-#if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_SIR)
 #ifdef CONFIG_BFIN_SIR0
         &bfin_sir0_device,
 #endif
@@ -807,11 +805,11 @@ static struct platform_device *stamp_devices[] __initdata = {
 #endif
 #endif
 
-#if defined(CONFIG_I2C_BLACKFIN_TWI) || defined(CONFIG_I2C_BLACKFIN_TWI_MODULE)
+#if IS_ENABLED(CONFIG_I2C_BLACKFIN_TWI)
         &i2c_bfin_twi_device,
 #endif
 
-#if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN_SPORT)
 #ifdef CONFIG_SERIAL_BFIN_SPORT0_UART
         &bfin_sport0_uart_device,
 #endif
@@ -820,11 +818,11 @@ static struct platform_device *stamp_devices[] __initdata = {
 #endif
 #endif
 
-#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
+#if IS_ENABLED(CONFIG_KEYBOARD_GPIO)
         &bfin_device_gpiokeys,
 #endif
 
-#if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
+#if IS_ENABLED(CONFIG_MTD_PHYSMAP)
         &ezbrd_flash_device,
 #endif
 };
diff --git a/arch/blackfin/mach-bf527/boards/ezkit.c b/arch/blackfin/mach-bf527/boards/ezkit.c
index d0a0c5e527cd..d64f565dc2a0 100644
--- a/arch/blackfin/mach-bf527/boards/ezkit.c
+++ b/arch/blackfin/mach-bf527/boards/ezkit.c
@@ -42,7 +42,7 @@ const char bfin_board_name[] = "ADI BF527-EZKIT";
  *  Driver needs to know address, irq and flag pin.
  */
 
-#if defined(CONFIG_USB_ISP1760_HCD) || defined(CONFIG_USB_ISP1760_HCD_MODULE)
+#if IS_ENABLED(CONFIG_USB_ISP1760_HCD)
 #include <linux/usb/isp1760.h>
 static struct resource bfin_isp1760_resources[] = {
         [0] = {
@@ -77,7 +77,7 @@ static struct platform_device bfin_isp1760_device = {
 };
 #endif
 
-#if defined(CONFIG_USB_MUSB_HDRC) || defined(CONFIG_USB_MUSB_HDRC_MODULE)
+#if IS_ENABLED(CONFIG_USB_MUSB_HDRC)
 static struct resource musb_resources[] = {
         [0] = {
                 .start  = 0xffc03800,
@@ -139,7 +139,7 @@ static struct platform_device musb_device = {
 };
 #endif
 
-#if defined(CONFIG_FB_BFIN_T350MCQB) || defined(CONFIG_FB_BFIN_T350MCQB_MODULE)
+#if IS_ENABLED(CONFIG_FB_BFIN_T350MCQB)
 
 static struct resource bf52x_t350mcqb_resources[] = {
         {
@@ -157,7 +157,7 @@ static struct platform_device bf52x_t350mcqb_device = {
 };
 #endif
 
-#if defined(CONFIG_FB_BFIN_LQ035Q1) || defined(CONFIG_FB_BFIN_LQ035Q1_MODULE)
+#if IS_ENABLED(CONFIG_FB_BFIN_LQ035Q1)
 #include <asm/bfin-lq035q1.h>
 
 static struct bfin_lq035q1fb_disp_info bfin_lq035q1_data = {
@@ -184,7 +184,7 @@ static struct platform_device bfin_lq035q1_device = {
 };
 #endif
 
-#if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
+#if IS_ENABLED(CONFIG_MTD_PHYSMAP)
 static struct mtd_partition ezkit_partitions[] = {
         {
                 .name       = "bootloader(nor)",
@@ -224,7 +224,7 @@ static struct platform_device ezkit_flash_device = {
 };
 #endif
 
-#if defined(CONFIG_MTD_NAND_BF5XX) || defined(CONFIG_MTD_NAND_BF5XX_MODULE)
+#if IS_ENABLED(CONFIG_MTD_NAND_BF5XX)
 static struct mtd_partition partition_info[] = {
         {
                 .name = "bootloader(nand)",
@@ -274,7 +274,7 @@ static struct platform_device bf5xx_nand_device = {
 };
 #endif
 
-#if defined(CONFIG_BFIN_CFPCMCIA) || defined(CONFIG_BFIN_CFPCMCIA_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_CFPCMCIA)
 static struct resource bfin_pcmcia_cf_resources[] = {
         {
                 .start = 0x20310000, /* IO PORT */
@@ -303,14 +303,14 @@ static struct platform_device bfin_pcmcia_cf_device = {
 };
 #endif
 
-#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_RTC_DRV_BFIN)
 static struct platform_device rtc_device = {
         .name = "rtc-bfin",
         .id   = -1,
 };
 #endif
 
-#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
+#if IS_ENABLED(CONFIG_SMC91X)
 #include <linux/smc91x.h>
 
 static struct smc91x_platdata smc91x_info = {
@@ -343,7 +343,7 @@ static struct platform_device smc91x_device = {
 };
 #endif
 
-#if defined(CONFIG_DM9000) || defined(CONFIG_DM9000_MODULE)
+#if IS_ENABLED(CONFIG_DM9000)
 static struct resource dm9000_resources[] = {
         [0] = {
                 .start  = 0x203FB800,
@@ -370,7 +370,7 @@ static struct platform_device dm9000_device = {
 };
 #endif
 
-#if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_MAC)
 #include <linux/bfin_mac.h>
 static const unsigned short bfin_mac_peripherals[] = P_RMII0;
 
@@ -403,7 +403,7 @@ static struct platform_device bfin_mac_device = {
 };
 #endif
 
-#if defined(CONFIG_USB_NET2272) || defined(CONFIG_USB_NET2272_MODULE)
+#if IS_ENABLED(CONFIG_USB_NET2272)
 static struct resource net2272_bfin_resources[] = {
         {
                 .start = 0x20300000,
@@ -427,8 +427,7 @@ static struct platform_device net2272_bfin_device = {
 };
 #endif
 
-#if defined(CONFIG_MTD_M25P80) \
-        || defined(CONFIG_MTD_M25P80_MODULE)
+#if IS_ENABLED(CONFIG_MTD_M25P80)
 static struct mtd_partition bfin_spi_flash_partitions[] = {
         {
                 .name = "bootloader(spi)",
@@ -455,13 +454,13 @@ static struct bfin5xx_spi_chip spi_flash_chip_info = {
 };
 #endif
 
-#if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
+#if IS_ENABLED(CONFIG_MMC_SPI)
 static struct bfin5xx_spi_chip  mmc_spi_chip_info = {
         .enable_dma = 0,
 };
 #endif
 
-#if defined(CONFIG_TOUCHSCREEN_AD7877) || defined(CONFIG_TOUCHSCREEN_AD7877_MODULE)
+#if IS_ENABLED(CONFIG_TOUCHSCREEN_AD7877)
 static const struct ad7877_platform_data bfin_ad7877_ts_info = {
         .model                  = 7877,
         .vref_delay_usecs       = 50,   /* internal, no capacitor */
@@ -477,7 +476,7 @@ static const struct ad7877_platform_data bfin_ad7877_ts_info = {
 };
 #endif
 
-#if defined(CONFIG_TOUCHSCREEN_AD7879) || defined(CONFIG_TOUCHSCREEN_AD7879_MODULE)
+#if IS_ENABLED(CONFIG_TOUCHSCREEN_AD7879)
 #include <linux/spi/ad7879.h>
 static const struct ad7879_platform_data bfin_ad7879_ts_info = {
         .model                  = 7879, /* Model = AD7879 */
@@ -493,7 +492,7 @@ static const struct ad7879_platform_data bfin_ad7879_ts_info = {
 };
 #endif
 
-#if defined(CONFIG_SND_BF5XX_I2S) || defined(CONFIG_SND_BF5XX_I2S_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_I2S)
 
 static const u16 bfin_snd_pin[][7] = {
         {P_SPORT0_DTPRI, P_SPORT0_TSCLK, P_SPORT0_RFS,
@@ -541,21 +540,21 @@ static struct resource bfin_snd_resources[][4] = {
 };
 #endif
 
-#if defined(CONFIG_SND_BF5XX_I2S) || defined(CONFIG_SND_BF5XX_I2S_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_I2S)
 static struct platform_device bfin_i2s_pcm = {
         .name = "bfin-i2s-pcm-audio",
         .id = -1,
 };
 #endif
 
-#if defined(CONFIG_SND_BF5XX_AC97) || defined(CONFIG_SND_BF5XX_AC97_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_AC97)
 static struct platform_device bfin_ac97_pcm = {
         .name = "bfin-ac97-pcm-audio",
         .id = -1,
 };
 #endif
 
-#if defined(CONFIG_SND_BF5XX_I2S) || defined(CONFIG_SND_BF5XX_I2S_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_I2S)
 static struct platform_device bfin_i2s = {
         .name = "bfin-i2s",
         .id = CONFIG_SND_BF5XX_SPORT_NUM,
@@ -567,8 +566,7 @@ static struct platform_device bfin_i2s = {
 };
 #endif
 
-#if defined(CONFIG_SND_BF5XX_SOC_AD1836) \
-                || defined(CONFIG_SND_BF5XX_SOC_AD1836_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_SOC_AD1836)
 static const char * const ad1836_link[] = {
         "bfin-i2s.0",
         "spi0.4",
@@ -583,8 +581,7 @@ static struct platform_device bfin_ad1836_machine = {
 #endif
 
 static struct spi_board_info bfin_spi_board_info[] __initdata = {
-#if defined(CONFIG_MTD_M25P80) \
-        || defined(CONFIG_MTD_M25P80_MODULE)
+#if IS_ENABLED(CONFIG_MTD_M25P80)
         {
                 /* the modalias must be the same as spi device driver name */
                 .modalias = "m25p80", /* Name of spi_driver for this device */
@@ -597,8 +594,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
         },
 #endif
 
-#if defined(CONFIG_SND_BF5XX_SOC_AD183X) \
-        || defined(CONFIG_SND_BF5XX_SOC_AD183X_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_SOC_AD183X)
         {
                 .modalias = "ad183x",
                 .max_speed_hz = 3125000,     /* max spi clock (SCK) speed in HZ */
@@ -608,7 +604,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .mode = SPI_MODE_3,
         },
 #endif
-#if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
+#if IS_ENABLED(CONFIG_MMC_SPI)
         {
                 .modalias = "mmc_spi",
                 .max_speed_hz = 20000000,     /* max spi clock (SCK) speed in HZ */
@@ -619,7 +615,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
         },
 #endif
 
-#if defined(CONFIG_TOUCHSCREEN_AD7877) || defined(CONFIG_TOUCHSCREEN_AD7877_MODULE)
+#if IS_ENABLED(CONFIG_TOUCHSCREEN_AD7877)
         {
                 .modalias               = "ad7877",
                 .platform_data          = &bfin_ad7877_ts_info,
@@ -629,7 +625,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .chip_select  = 2,
         },
 #endif
-#if defined(CONFIG_TOUCHSCREEN_AD7879_SPI) || defined(CONFIG_TOUCHSCREEN_AD7879_SPI_MODULE)
+#if IS_ENABLED(CONFIG_TOUCHSCREEN_AD7879_SPI)
         {
                 .modalias = "ad7879",
                 .platform_data = &bfin_ad7879_ts_info,
@@ -640,7 +636,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .mode = SPI_CPHA | SPI_CPOL,
         },
 #endif
-#if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
+#if IS_ENABLED(CONFIG_SPI_SPIDEV)
         {
                 .modalias = "spidev",
                 .max_speed_hz = 3125000,     /* max spi clock (SCK) speed in HZ */
@@ -648,7 +644,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .chip_select = 1,
         },
 #endif
-#if defined(CONFIG_FB_BFIN_LQ035Q1) || defined(CONFIG_FB_BFIN_LQ035Q1_MODULE)
+#if IS_ENABLED(CONFIG_FB_BFIN_LQ035Q1)
         {
                 .modalias = "bfin-lq035q1-spi",
                 .max_speed_hz = 20000000,     /* max spi clock (SCK) speed in HZ */
@@ -659,7 +655,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
 #endif
 };
 
-#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
+#if IS_ENABLED(CONFIG_SPI_BFIN5XX)
 /* SPI controller data */
 static struct bfin5xx_spi_master bfin_spi0_info = {
         .num_chipselect = 8,
@@ -697,7 +693,7 @@ static struct platform_device bfin_spi0_device = {
 };
 #endif  /* spi master and devices */
 
-#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN)
 #ifdef CONFIG_SERIAL_BFIN_UART0
 static struct resource bfin_uart0_resources[] = {
         {
@@ -808,7 +804,7 @@ static struct platform_device bfin_uart1_device = {
 #endif
 #endif
 
-#if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_SIR)
 #ifdef CONFIG_BFIN_SIR0
 static struct resource bfin_sir0_resources[] = {
         {
@@ -863,7 +859,7 @@ static struct platform_device bfin_sir1_device = {
 #endif
 #endif
 
-#if defined(CONFIG_I2C_BLACKFIN_TWI) || defined(CONFIG_I2C_BLACKFIN_TWI_MODULE)
+#if IS_ENABLED(CONFIG_I2C_BLACKFIN_TWI)
 static const u16 bfin_twi0_pins[] = {P_TWI0_SCL, P_TWI0_SDA, 0};
 
 static struct resource bfin_twi0_resource[] = {
@@ -890,7 +886,7 @@ static struct platform_device i2c_bfin_twi_device = {
 };
 #endif
 
-#if defined(CONFIG_PMIC_ADP5520) || defined(CONFIG_PMIC_ADP5520_MODULE)
+#if IS_ENABLED(CONFIG_PMIC_ADP5520)
 #include <linux/mfd/adp5520.h>
 
         /*
@@ -956,54 +952,54 @@ static struct adp5520_platform_data adp5520_pdev_data = {
 #endif
 
 static struct i2c_board_info __initdata bfin_i2c_board_info[] = {
-#if defined(CONFIG_BFIN_TWI_LCD) || defined(CONFIG_BFIN_TWI_LCD_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_TWI_LCD)
         {
                 I2C_BOARD_INFO("pcf8574_lcd", 0x22),
         },
 #endif
-#if defined(CONFIG_INPUT_PCF8574) || defined(CONFIG_INPUT_PCF8574_MODULE)
+#if IS_ENABLED(CONFIG_INPUT_PCF8574)
         {
                 I2C_BOARD_INFO("pcf8574_keypad", 0x27),
                 .irq = IRQ_PF8,
         },
 #endif
-#if defined(CONFIG_FB_BFIN_7393) || defined(CONFIG_FB_BFIN_7393_MODULE)
+#if IS_ENABLED(CONFIG_FB_BFIN_7393)
         {
                 I2C_BOARD_INFO("bfin-adv7393", 0x2B),
         },
 #endif
-#if defined(CONFIG_TOUCHSCREEN_AD7879_I2C) || defined(CONFIG_TOUCHSCREEN_AD7879_I2C_MODULE)
+#if IS_ENABLED(CONFIG_TOUCHSCREEN_AD7879_I2C)
         {
                 I2C_BOARD_INFO("ad7879", 0x2C),
                 .irq = IRQ_PF8,
                 .platform_data = (void *)&bfin_ad7879_ts_info,
         },
 #endif
-#if defined(CONFIG_PMIC_ADP5520) || defined(CONFIG_PMIC_ADP5520_MODULE)
+#if IS_ENABLED(CONFIG_PMIC_ADP5520)
         {
                 I2C_BOARD_INFO("pmic-adp5520", 0x32),
                 .irq = IRQ_PF9,
                 .platform_data = (void *)&adp5520_pdev_data,
         },
 #endif
-#if defined(CONFIG_SND_SOC_SSM2602) || defined(CONFIG_SND_SOC_SSM2602_MODULE)
+#if IS_ENABLED(CONFIG_SND_SOC_SSM2602)
         {
                 I2C_BOARD_INFO("ssm2602", 0x1b),
         },
 #endif
-#if defined(CONFIG_BFIN_TWI_LCD) || defined(CONFIG_BFIN_TWI_LCD_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_TWI_LCD)
         {
                 I2C_BOARD_INFO("ad5252", 0x2f),
         },
 #endif
-#if defined(CONFIG_SND_SOC_ADAU1373) || defined(CONFIG_SND_SOC_ADAU1373_MODULE)
+#if IS_ENABLED(CONFIG_SND_SOC_ADAU1373)
         {
                 I2C_BOARD_INFO("adau1373", 0x1A),
         },
 #endif
 };
 
-#if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN_SPORT)
 #ifdef CONFIG_SERIAL_BFIN_SPORT0_UART
 static struct resource bfin_sport0_uart_resources[] = {
         {
@@ -1074,7 +1070,7 @@ static struct platform_device bfin_sport1_uart_device = {
 #endif
 #endif
 
-#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
+#if IS_ENABLED(CONFIG_KEYBOARD_GPIO)
 #include <linux/gpio_keys.h>
 
 static struct gpio_keys_button bfin_gpio_keys_table[] = {
@@ -1095,7 +1091,7 @@ static struct platform_device bfin_device_gpiokeys = {
 };
 #endif
 
-#if defined(CONFIG_INPUT_BFIN_ROTARY) || defined(CONFIG_INPUT_BFIN_ROTARY_MODULE)
+#if IS_ENABLED(CONFIG_INPUT_BFIN_ROTARY)
 #include <asm/bfin_rotary.h>
 
 static struct bfin_rotary_platform_data bfin_rotary_data = {
@@ -1153,56 +1149,56 @@ static struct platform_device *stamp_devices[] __initdata = {
 
         &bfin_dpmc,
 
-#if defined(CONFIG_MTD_NAND_BF5XX) || defined(CONFIG_MTD_NAND_BF5XX_MODULE)
+#if IS_ENABLED(CONFIG_MTD_NAND_BF5XX)
         &bf5xx_nand_device,
 #endif
 
-#if defined(CONFIG_BFIN_CFPCMCIA) || defined(CONFIG_BFIN_CFPCMCIA_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_CFPCMCIA)
         &bfin_pcmcia_cf_device,
 #endif
 
-#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_RTC_DRV_BFIN)
         &rtc_device,
 #endif
 
-#if defined(CONFIG_USB_ISP1760_HCD) || defined(CONFIG_USB_ISP1760_HCD_MODULE)
+#if IS_ENABLED(CONFIG_USB_ISP1760_HCD)
         &bfin_isp1760_device,
 #endif
 
-#if defined(CONFIG_USB_MUSB_HDRC) || defined(CONFIG_USB_MUSB_HDRC_MODULE)
+#if IS_ENABLED(CONFIG_USB_MUSB_HDRC)
         &musb_device,
 #endif
 
-#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
+#if IS_ENABLED(CONFIG_SMC91X)
         &smc91x_device,
 #endif
 
-#if defined(CONFIG_DM9000) || defined(CONFIG_DM9000_MODULE)
+#if IS_ENABLED(CONFIG_DM9000)
         &dm9000_device,
 #endif
 
-#if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_MAC)
         &bfin_mii_bus,
         &bfin_mac_device,
 #endif
 
-#if defined(CONFIG_USB_NET2272) || defined(CONFIG_USB_NET2272_MODULE)
+#if IS_ENABLED(CONFIG_USB_NET2272)
         &net2272_bfin_device,
 #endif
 
-#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
+#if IS_ENABLED(CONFIG_SPI_BFIN5XX)
         &bfin_spi0_device,
 #endif
 
-#if defined(CONFIG_FB_BFIN_T350MCQB) || defined(CONFIG_FB_BFIN_T350MCQB_MODULE)
+#if IS_ENABLED(CONFIG_FB_BFIN_T350MCQB)
         &bf52x_t350mcqb_device,
 #endif
 
-#if defined(CONFIG_FB_BFIN_LQ035Q1) || defined(CONFIG_FB_BFIN_LQ035Q1_MODULE)
+#if IS_ENABLED(CONFIG_FB_BFIN_LQ035Q1)
         &bfin_lq035q1_device,
 #endif
 
-#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN)
 #ifdef CONFIG_SERIAL_BFIN_UART0
         &bfin_uart0_device,
 #endif
@@ -1211,7 +1207,7 @@ static struct platform_device *stamp_devices[] __initdata = {
 #endif
 #endif
 
-#if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_SIR)
 #ifdef CONFIG_BFIN_SIR0
         &bfin_sir0_device,
 #endif
@@ -1220,11 +1216,11 @@ static struct platform_device *stamp_devices[] __initdata = {
 #endif
 #endif
 
-#if defined(CONFIG_I2C_BLACKFIN_TWI) || defined(CONFIG_I2C_BLACKFIN_TWI_MODULE)
+#if IS_ENABLED(CONFIG_I2C_BLACKFIN_TWI)
         &i2c_bfin_twi_device,
 #endif
 
-#if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN_SPORT)
 #ifdef CONFIG_SERIAL_BFIN_SPORT0_UART
         &bfin_sport0_uart_device,
 #endif
@@ -1233,32 +1229,31 @@ static struct platform_device *stamp_devices[] __initdata = {
 #endif
 #endif
 
-#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
+#if IS_ENABLED(CONFIG_KEYBOARD_GPIO)
         &bfin_device_gpiokeys,
 #endif
 
-#if defined(CONFIG_INPUT_BFIN_ROTARY) || defined(CONFIG_INPUT_BFIN_ROTARY_MODULE)
+#if IS_ENABLED(CONFIG_INPUT_BFIN_ROTARY)
         &bfin_rotary_device,
 #endif
 
-#if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
+#if IS_ENABLED(CONFIG_MTD_PHYSMAP)
         &ezkit_flash_device,
 #endif
 
-#if defined(CONFIG_SND_BF5XX_I2S) || defined(CONFIG_SND_BF5XX_I2S_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_I2S)
         &bfin_i2s_pcm,
 #endif
 
-#if defined(CONFIG_SND_BF5XX_AC97) || defined(CONFIG_SND_BF5XX_AC97_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_AC97)
         &bfin_ac97_pcm,
 #endif
 
-#if defined(CONFIG_SND_BF5XX_I2S) || defined(CONFIG_SND_BF5XX_I2S_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_I2S)
         &bfin_i2s,
 #endif
 
-#if defined(CONFIG_SND_BF5XX_SOC_AD1836) || \
-        defined(CONFIG_SND_BF5XX_SOC_AD1836_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_SOC_AD1836)
         &bfin_ad1836_machine,
 #endif
 };
diff --git a/arch/blackfin/mach-bf527/boards/tll6527m.c b/arch/blackfin/mach-bf527/boards/tll6527m.c
index 1509c5a8a3ff..a0f5856a5ff8 100644
--- a/arch/blackfin/mach-bf527/boards/tll6527m.c
+++ b/arch/blackfin/mach-bf527/boards/tll6527m.c
@@ -28,8 +28,7 @@
 #include <asm/portmux.h>
 #include <asm/dpmc.h>
 
-#if defined(CONFIG_TOUCHSCREEN_AD7879) \
-        || defined(CONFIG_TOUCHSCREEN_AD7879_MODULE)
+#if IS_ENABLED(CONFIG_TOUCHSCREEN_AD7879)
 #include <linux/spi/ad7879.h>
 #define LCD_BACKLIGHT_GPIO 0x40
 /* TLL6527M uses TLL7UIQ35 / ADI LCD EZ Extender. AD7879 AUX GPIO is used for
@@ -45,7 +44,7 @@ const char bfin_board_name[] = "TLL6527M";
  *  Driver needs to know address, irq and flag pin.
  */
 
-#if defined(CONFIG_USB_MUSB_HDRC) || defined(CONFIG_USB_MUSB_HDRC_MODULE)
+#if IS_ENABLED(CONFIG_USB_MUSB_HDRC)
 static struct resource musb_resources[] = {
         [0] = {
                 .start  = 0xffc03800,
@@ -104,7 +103,7 @@ static struct platform_device musb_device = {
 };
 #endif
 
-#if defined(CONFIG_FB_BFIN_LQ035Q1) || defined(CONFIG_FB_BFIN_LQ035Q1_MODULE)
+#if IS_ENABLED(CONFIG_FB_BFIN_LQ035Q1)
 #include <asm/bfin-lq035q1.h>
 
 static struct bfin_lq035q1fb_disp_info bfin_lq035q1_data = {
@@ -133,7 +132,7 @@ static struct platform_device bfin_lq035q1_device = {
 };
 #endif
 
-#if defined(CONFIG_MTD_GPIO_ADDR) || defined(CONFIG_MTD_GPIO_ADDR_MODULE)
+#if IS_ENABLED(CONFIG_MTD_GPIO_ADDR)
 static struct mtd_partition tll6527m_partitions[] = {
         {
                 .name       = "bootloader(nor)",
@@ -182,7 +181,7 @@ static struct platform_device tll6527m_flash_device = {
 };
 #endif
 
-#if defined(CONFIG_GPIO_DECODER) || defined(CONFIG_GPIO_DECODER_MODULE)
+#if IS_ENABLED(CONFIG_GPIO_DECODER)
 /* An SN74LVC138A 3:8 decoder chip has been used to generate 7 augmented
  * outputs used as SPI CS lines for all SPI SLAVE devices on TLL6527v1-0.
  * EXP_GPIO_SPISEL_BASE is the base number for the expanded outputs being
@@ -215,7 +214,7 @@ static struct platform_device spi_decoded_gpio = {
 
 #endif
 
-#if defined(CONFIG_INPUT_ADXL34X) || defined(CONFIG_INPUT_ADXL34X_MODULE)
+#if IS_ENABLED(CONFIG_INPUT_ADXL34X)
 #include <linux/input/adxl34x.h>
 static const struct adxl34x_platform_data adxl345_info = {
         .x_axis_offset = 0,
@@ -250,14 +249,14 @@ static const struct adxl34x_platform_data adxl345_info = {
 };
 #endif
 
-#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_RTC_DRV_BFIN)
 static struct platform_device rtc_device = {
         .name = "rtc-bfin",
         .id   = -1,
 };
 #endif
 
-#if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_MAC)
 #include <linux/bfin_mac.h>
 static const unsigned short bfin_mac_peripherals[] = P_RMII0;
 
@@ -290,8 +289,7 @@ static struct platform_device bfin_mac_device = {
 };
 #endif
 
-#if defined(CONFIG_MTD_M25P80) \
-        || defined(CONFIG_MTD_M25P80_MODULE)
+#if IS_ENABLED(CONFIG_MTD_M25P80)
 static struct mtd_partition bfin_spi_flash_partitions[] = {
         {
                 .name = "bootloader(spi)",
@@ -318,14 +316,13 @@ static struct bfin5xx_spi_chip spi_flash_chip_info = {
 };
 #endif
 
-#if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
+#if IS_ENABLED(CONFIG_MMC_SPI)
 static struct bfin5xx_spi_chip  mmc_spi_chip_info = {
         .enable_dma = 0,
 };
 #endif
 
-#if defined(CONFIG_TOUCHSCREEN_AD7879) \
-        || defined(CONFIG_TOUCHSCREEN_AD7879_MODULE)
+#if IS_ENABLED(CONFIG_TOUCHSCREEN_AD7879)
 static const struct ad7879_platform_data bfin_ad7879_ts_info = {
         .model                  = 7879, /* Model = AD7879 */
         .x_plate_ohms           = 620,  /* 620 Ohm from the touch datasheet */
@@ -343,7 +340,7 @@ static const struct ad7879_platform_data bfin_ad7879_ts_info = {
 };
 #endif
 
-#if defined(CONFIG_SND_BF5XX_I2S) || defined(CONFIG_SND_BF5XX_I2S_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_I2S)
 static struct platform_device bfin_i2s = {
         .name = "bfin-i2s",
         .id = CONFIG_SND_BF5XX_SPORT_NUM,
@@ -351,7 +348,7 @@ static struct platform_device bfin_i2s = {
 };
 #endif
 
-#if defined(CONFIG_GPIO_MCP23S08) || defined(CONFIG_GPIO_MCP23S08_MODULE)
+#if IS_ENABLED(CONFIG_GPIO_MCP23S08)
 #include <linux/spi/mcp23s08.h>
 static const struct mcp23s08_platform_data bfin_mcp23s08_sys_gpio_info = {
         .chip[0].is_present = true,
@@ -364,8 +361,7 @@ static const struct mcp23s08_platform_data bfin_mcp23s08_usr_gpio_info = {
 #endif
 
 static struct spi_board_info bfin_spi_board_info[] __initdata = {
-#if defined(CONFIG_MTD_M25P80) \
-        || defined(CONFIG_MTD_M25P80_MODULE)
+#if IS_ENABLED(CONFIG_MTD_M25P80)
         {
                 /* the modalias must be the same as spi device driver name */
                 .modalias = "m25p80", /* Name of spi_driver for this device */
@@ -381,7 +377,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
         },
 #endif
 
-#if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
+#if IS_ENABLED(CONFIG_MMC_SPI)
         {
                 .modalias = "mmc_spi",
 /*
@@ -396,8 +392,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .mode = SPI_MODE_0,
         },
 #endif
-#if defined(CONFIG_TOUCHSCREEN_AD7879_SPI) \
-        || defined(CONFIG_TOUCHSCREEN_AD7879_SPI_MODULE)
+#if IS_ENABLED(CONFIG_TOUCHSCREEN_AD7879_SPI)
         {
                 .modalias = "ad7879",
                 .platform_data = &bfin_ad7879_ts_info,
@@ -409,7 +404,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .mode = SPI_CPHA | SPI_CPOL,
         },
 #endif
-#if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
+#if IS_ENABLED(CONFIG_SPI_SPIDEV)
         {
                 .modalias = "spidev",
                 .max_speed_hz = 10000000,
@@ -419,7 +414,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .mode = SPI_CPHA | SPI_CPOL,
         },
 #endif
-#if defined(CONFIG_FB_BFIN_LQ035Q1) || defined(CONFIG_FB_BFIN_LQ035Q1_MODULE)
+#if IS_ENABLED(CONFIG_FB_BFIN_LQ035Q1)
         {
                 .modalias = "bfin-lq035q1-spi",
                 .max_speed_hz = 20000000,
@@ -428,7 +423,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .mode = SPI_CPHA | SPI_CPOL,
         },
 #endif
-#if defined(CONFIG_GPIO_MCP23S08) || defined(CONFIG_GPIO_MCP23S08_MODULE)
+#if IS_ENABLED(CONFIG_GPIO_MCP23S08)
         {
                 .modalias = "mcp23s08",
                 .platform_data = &bfin_mcp23s08_sys_gpio_info,
@@ -448,7 +443,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
 #endif
 };
 
-#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
+#if IS_ENABLED(CONFIG_SPI_BFIN5XX)
 /* SPI controller data */
 static struct bfin5xx_spi_master bfin_spi0_info = {
         .num_chipselect = EXP_GPIO_SPISEL_BASE + 8 + MAX_CTRL_CS,
@@ -487,7 +482,7 @@ static struct platform_device bfin_spi0_device = {
 };
 #endif  /* spi master and devices */
 
-#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN)
 #ifdef CONFIG_SERIAL_BFIN_UART0
 static struct resource bfin_uart0_resources[] = {
         {
@@ -600,7 +595,7 @@ static struct platform_device bfin_uart1_device = {
 #endif
 #endif
 
-#if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_SIR)
 #ifdef CONFIG_BFIN_SIR0
 static struct resource bfin_sir0_resources[] = {
         {
@@ -655,7 +650,7 @@ static struct platform_device bfin_sir1_device = {
 #endif
 #endif
 
-#if defined(CONFIG_I2C_BLACKFIN_TWI) || defined(CONFIG_I2C_BLACKFIN_TWI_MODULE)
+#if IS_ENABLED(CONFIG_I2C_BLACKFIN_TWI)
 static const u16 bfin_twi0_pins[] = {P_TWI0_SCL, P_TWI0_SDA, 0};
 
 static struct resource bfin_twi0_resource[] = {
@@ -683,26 +678,25 @@ static struct platform_device i2c_bfin_twi_device = {
 #endif
 
 static struct i2c_board_info __initdata bfin_i2c_board_info[] = {
-#if defined(CONFIG_BFIN_TWI_LCD) || defined(CONFIG_BFIN_TWI_LCD_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_TWI_LCD)
         {
                 I2C_BOARD_INFO("pcf8574_lcd", 0x22),
         },
 #endif
 
-#if defined(CONFIG_FB_BFIN_7393) || defined(CONFIG_FB_BFIN_7393_MODULE)
+#if IS_ENABLED(CONFIG_FB_BFIN_7393)
         {
                 I2C_BOARD_INFO("bfin-adv7393", 0x2B),
         },
 #endif
-#if defined(CONFIG_TOUCHSCREEN_AD7879_I2C) \
-        || defined(CONFIG_TOUCHSCREEN_AD7879_I2C_MODULE)
+#if IS_ENABLED(CONFIG_TOUCHSCREEN_AD7879_I2C)
         {
                 I2C_BOARD_INFO("ad7879", 0x2C),
                 .irq = IRQ_PH14,
                 .platform_data = (void *)&bfin_ad7879_ts_info,
         },
 #endif
-#if defined(CONFIG_SND_SOC_SSM2602) || defined(CONFIG_SND_SOC_SSM2602_MODULE)
+#if IS_ENABLED(CONFIG_SND_SOC_SSM2602)
         {
                 I2C_BOARD_INFO("ssm2602", 0x1b),
         },
@@ -714,8 +708,7 @@ static struct i2c_board_info __initdata bfin_i2c_board_info[] = {
         {
                 I2C_BOARD_INFO("ltc3576", 0x09),
         },
-#if defined(CONFIG_INPUT_ADXL34X_I2C) \
-        || defined(CONFIG_INPUT_ADXL34X_I2C_MODULE)
+#if IS_ENABLED(CONFIG_INPUT_ADXL34X_I2C)
         {
                 I2C_BOARD_INFO("adxl34x", 0x53),
                 .irq = IRQ_PH13,
@@ -724,8 +717,7 @@ static struct i2c_board_info __initdata bfin_i2c_board_info[] = {
 #endif
 };
 
-#if defined(CONFIG_SERIAL_BFIN_SPORT) \
-        || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN_SPORT)
 #ifdef CONFIG_SERIAL_BFIN_SPORT0_UART
 static struct resource bfin_sport0_uart_resources[] = {
         {
@@ -823,28 +815,28 @@ static struct platform_device *tll6527m_devices[] __initdata = {
 
         &bfin_dpmc,
 
-#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_RTC_DRV_BFIN)
         &rtc_device,
 #endif
 
-#if defined(CONFIG_USB_MUSB_HDRC) || defined(CONFIG_USB_MUSB_HDRC_MODULE)
+#if IS_ENABLED(CONFIG_USB_MUSB_HDRC)
         &musb_device,
 #endif
 
-#if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_MAC)
         &bfin_mii_bus,
         &bfin_mac_device,
 #endif
 
-#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
+#if IS_ENABLED(CONFIG_SPI_BFIN5XX)
         &bfin_spi0_device,
 #endif
 
-#if defined(CONFIG_FB_BFIN_LQ035Q1) || defined(CONFIG_FB_BFIN_LQ035Q1_MODULE)
+#if IS_ENABLED(CONFIG_FB_BFIN_LQ035Q1)
         &bfin_lq035q1_device,
 #endif
 
-#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN)
 #ifdef CONFIG_SERIAL_BFIN_UART0
         &bfin_uart0_device,
 #endif
@@ -853,7 +845,7 @@ static struct platform_device *tll6527m_devices[] __initdata = {
 #endif
 #endif
 
-#if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_SIR)
 #ifdef CONFIG_BFIN_SIR0
         &bfin_sir0_device,
 #endif
@@ -862,12 +854,11 @@ static struct platform_device *tll6527m_devices[] __initdata = {
 #endif
 #endif
 
-#if defined(CONFIG_I2C_BLACKFIN_TWI) || defined(CONFIG_I2C_BLACKFIN_TWI_MODULE)
+#if IS_ENABLED(CONFIG_I2C_BLACKFIN_TWI)
         &i2c_bfin_twi_device,
 #endif
 
-#if defined(CONFIG_SERIAL_BFIN_SPORT) \
-        || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN_SPORT)
 #ifdef CONFIG_SERIAL_BFIN_SPORT0_UART
         &bfin_sport0_uart_device,
 #endif
@@ -876,15 +867,15 @@ static struct platform_device *tll6527m_devices[] __initdata = {
 #endif
 #endif
 
-#if defined(CONFIG_MTD_GPIO_ADDR) || defined(CONFIG_MTD_GPIO_ADDR_MODULE)
+#if IS_ENABLED(CONFIG_MTD_GPIO_ADDR)
         &tll6527m_flash_device,
 #endif
 
-#if defined(CONFIG_SND_BF5XX_I2S) || defined(CONFIG_SND_BF5XX_I2S_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_I2S)
         &bfin_i2s,
 #endif
 
-#if defined(CONFIG_GPIO_DECODER) || defined(CONFIG_GPIO_DECODER_MODULE)
+#if IS_ENABLED(CONFIG_GPIO_DECODER)
         &spi_decoded_gpio,
 #endif
 };
diff --git a/arch/blackfin/mach-bf533/boards/H8606.c b/arch/blackfin/mach-bf533/boards/H8606.c
index 6cb7b3ed9b3d..01300f40db15 100644
--- a/arch/blackfin/mach-bf533/boards/H8606.c
+++ b/arch/blackfin/mach-bf533/boards/H8606.c
@@ -14,7 +14,7 @@
 #include <linux/mtd/partitions.h>
 #include <linux/spi/spi.h>
 #include <linux/spi/flash.h>
-#if defined(CONFIG_USB_ISP1362_HCD) || defined(CONFIG_USB_ISP1362_HCD_MODULE)
+#if IS_ENABLED(CONFIG_USB_ISP1362_HCD)
 #include <linux/usb/isp1362.h>
 #endif
 #include <linux/irq.h>
@@ -29,7 +29,7 @@
  */
 const char bfin_board_name[] = "HV Sistemas H8606";
 
-#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_RTC_DRV_BFIN)
 static struct platform_device rtc_device = {
         .name = "rtc-bfin",
         .id   = -1,
@@ -39,7 +39,7 @@ static struct platform_device rtc_device = {
 /*
 *  Driver needs to know address, irq and flag pin.
  */
- #if    defined(CONFIG_DM9000) || defined(CONFIG_DM9000_MODULE)
+#if IS_ENABLED(CONFIG_DM9000)
 static struct resource dm9000_resources[] = {
         [0] = {
                 .start  = 0x20300000,
@@ -67,7 +67,7 @@ static struct platform_device dm9000_device = {
 };
 #endif
 
-#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
+#if IS_ENABLED(CONFIG_SMC91X)
 #include <linux/smc91x.h>
 
 static struct smc91x_platdata smc91x_info = {
@@ -104,7 +104,7 @@ static struct platform_device smc91x_device = {
 };
 #endif
 
-#if defined(CONFIG_USB_NET2272) || defined(CONFIG_USB_NET2272_MODULE)
+#if IS_ENABLED(CONFIG_USB_NET2272)
 static struct resource net2272_bfin_resources[] = {
         {
                 .start = 0x20300000,
@@ -125,10 +125,10 @@ static struct platform_device net2272_bfin_device = {
 };
 #endif
 
-#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
+#if IS_ENABLED(CONFIG_SPI_BFIN5XX)
 /* all SPI peripherals info goes here */
 
-#if defined(CONFIG_MTD_M25P80) || defined(CONFIG_MTD_M25P80_MODULE)
+#if IS_ENABLED(CONFIG_MTD_M25P80)
 static struct mtd_partition bfin_spi_flash_partitions[] = {
         {
                 .name = "bootloader (spi)",
@@ -166,7 +166,7 @@ static struct bfin5xx_spi_chip spi_flash_chip_info = {
 /* Notice: for blackfin, the speed_hz is the value of register
  * SPI_BAUD, not the real baudrate */
 static struct spi_board_info bfin_spi_board_info[] __initdata = {
-#if defined(CONFIG_MTD_M25P80) || defined(CONFIG_MTD_M25P80_MODULE)
+#if IS_ENABLED(CONFIG_MTD_M25P80)
         {
                 /* the modalias must be the same as spi device driver name */
                 .modalias = "m25p80", /* Name of spi_driver for this device */
@@ -180,7 +180,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
         },
 #endif
 
-#if defined(CONFIG_SND_BF5XX_SOC_AD183X) || defined(CONFIG_SND_BF5XX_SOC_AD183X_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_SOC_AD183X)
         {
                 .modalias = "ad183x",
                 .max_speed_hz = 16,
@@ -229,7 +229,7 @@ static struct platform_device bfin_spi0_device = {
 };
 #endif  /* spi master and devices */
 
-#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN)
 #ifdef CONFIG_SERIAL_BFIN_UART0
 static struct resource bfin_uart0_resources[] = {
         {
@@ -280,7 +280,7 @@ static struct platform_device bfin_uart0_device = {
 #endif
 #endif
 
-#if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_SIR)
 #ifdef CONFIG_BFIN_SIR0
 static struct resource bfin_sir0_resources[] = {
         {
@@ -309,7 +309,7 @@ static struct platform_device bfin_sir0_device = {
 #endif
 #endif
 
-#if defined(CONFIG_SERIAL_8250) || defined(CONFIG_SERIAL_8250_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_8250)
 
 #include <linux/serial_8250.h>
 #include <linux/serial.h>
@@ -353,7 +353,7 @@ static struct platform_device serial8250_device = {
 
 #endif
 
-#if defined(CONFIG_KEYBOARD_OPENCORES) || defined(CONFIG_KEYBOARD_OPENCORES_MODULE)
+#if IS_ENABLED(CONFIG_KEYBOARD_OPENCORES)
 
 /*
  * Configuration for one OpenCores keyboard controller in FPGA at address 0x20200030,
@@ -382,43 +382,43 @@ static struct platform_device opencores_kbd_device = {
 #endif
 
 static struct platform_device *h8606_devices[] __initdata = {
-#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_RTC_DRV_BFIN)
         &rtc_device,
 #endif
 
-#if     defined(CONFIG_DM9000) || defined(CONFIG_DM9000_MODULE)
+#if IS_ENABLED(CONFIG_DM9000)
         &dm9000_device,
 #endif
 
-#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
+#if IS_ENABLED(CONFIG_SMC91X)
         &smc91x_device,
 #endif
 
-#if defined(CONFIG_USB_NET2272) || defined(CONFIG_USB_NET2272_MODULE)
+#if IS_ENABLED(CONFIG_USB_NET2272)
         &net2272_bfin_device,
 #endif
 
-#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
+#if IS_ENABLED(CONFIG_SPI_BFIN5XX)
         &bfin_spi0_device,
 #endif
 
-#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN)
 #ifdef CONFIG_SERIAL_BFIN_UART0
         &bfin_uart0_device,
 #endif
 #endif
 
-#if defined(CONFIG_SERIAL_8250) || defined(CONFIG_SERIAL_8250_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_8250)
         &serial8250_device,
 #endif
 
-#if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_SIR)
 #ifdef CONFIG_BFIN_SIR0
         &bfin_sir0_device,
 #endif
 #endif
 
-#if defined(CONFIG_KEYBOARD_OPENCORES) || defined(CONFIG_KEYBOARD_OPENCORES_MODULE)
+#if IS_ENABLED(CONFIG_KEYBOARD_OPENCORES)
         &opencores_kbd_device,
 #endif
 };
@@ -428,7 +428,7 @@ static int __init H8606_init(void)
         printk(KERN_INFO "HV Sistemas H8606 board support by http://www.hvsistemas.com\n");
         printk(KERN_INFO "%s(): registering device resources\n", __func__);
         platform_add_devices(h8606_devices, ARRAY_SIZE(h8606_devices));
-#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
+#if IS_ENABLED(CONFIG_SPI_BFIN5XX)
         spi_register_board_info(bfin_spi_board_info, ARRAY_SIZE(bfin_spi_board_info));
 #endif
         return 0;
diff --git a/arch/blackfin/mach-bf533/boards/blackstamp.c b/arch/blackfin/mach-bf533/boards/blackstamp.c
index de44a3765e59..63b0e4fe760c 100644
--- a/arch/blackfin/mach-bf533/boards/blackstamp.c
+++ b/arch/blackfin/mach-bf533/boards/blackstamp.c
@@ -31,7 +31,7 @@
  */
 const char bfin_board_name[] = "BlackStamp";
 
-#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_RTC_DRV_BFIN)
 static struct platform_device rtc_device = {
         .name = "rtc-bfin",
         .id   = -1,
@@ -41,7 +41,7 @@ static struct platform_device rtc_device = {
 /*
  *  Driver needs to know address, irq and flag pin.
  */
-#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
+#if IS_ENABLED(CONFIG_SMC91X)
 #include <linux/smc91x.h>
 
 static struct smc91x_platdata smc91x_info = {
@@ -74,7 +74,7 @@ static struct platform_device smc91x_device = {
 };
 #endif
 
-#if defined(CONFIG_MTD_M25P80) || defined(CONFIG_MTD_M25P80_MODULE)
+#if IS_ENABLED(CONFIG_MTD_M25P80)
 static struct mtd_partition bfin_spi_flash_partitions[] = {
         {
                 .name = "bootloader(spi)",
@@ -105,14 +105,14 @@ static struct bfin5xx_spi_chip spi_flash_chip_info = {
 };
 #endif
 
-#if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
+#if IS_ENABLED(CONFIG_MMC_SPI)
 static struct bfin5xx_spi_chip mmc_spi_chip_info = {
         .enable_dma = 0,
 };
 #endif
 
 static struct spi_board_info bfin_spi_board_info[] __initdata = {
-#if defined(CONFIG_MTD_M25P80) || defined(CONFIG_MTD_M25P80_MODULE)
+#if IS_ENABLED(CONFIG_MTD_M25P80)
         {
                 /* the modalias must be the same as spi device driver name */
                 .modalias = "m25p80", /* Name of spi_driver for this device */
@@ -125,7 +125,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
         },
 #endif
 
-#if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
+#if IS_ENABLED(CONFIG_MMC_SPI)
         {
                 .modalias = "mmc_spi",
                 .max_speed_hz = 20000000,     /* max spi clock (SCK) speed in HZ */
@@ -136,7 +136,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
         },
 #endif
 
-#if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
+#if IS_ENABLED(CONFIG_SPI_SPIDEV)
         {
                 .modalias = "spidev",
                 .max_speed_hz = 3125000,     /* max spi clock (SCK) speed in HZ */
@@ -146,7 +146,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
 #endif
 };
 
-#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
+#if IS_ENABLED(CONFIG_SPI_BFIN5XX)
 /* SPI (0) */
 static struct resource bfin_spi0_resource[] = {
         [0] = {
@@ -184,7 +184,7 @@ static struct platform_device bfin_spi0_device = {
 };
 #endif  /* spi master and devices */
 
-#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN)
 #ifdef CONFIG_SERIAL_BFIN_UART0
 static struct resource bfin_uart0_resources[] = {
         {
@@ -235,7 +235,7 @@ static struct platform_device bfin_uart0_device = {
 #endif
 #endif
 
-#if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_SIR)
 #ifdef CONFIG_BFIN_SIR0
 static struct resource bfin_sir0_resources[] = {
         {
@@ -264,7 +264,7 @@ static struct platform_device bfin_sir0_device = {
 #endif
 #endif
 
-#if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN_SPORT)
 #ifdef CONFIG_SERIAL_BFIN_SPORT0_UART
 static struct resource bfin_sport0_uart_resources[] = {
         {
@@ -335,7 +335,7 @@ static struct platform_device bfin_sport1_uart_device = {
 #endif
 #endif
 
-#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
+#if IS_ENABLED(CONFIG_KEYBOARD_GPIO)
 #include <linux/input.h>
 #include <linux/gpio_keys.h>
 
@@ -358,7 +358,7 @@ static struct platform_device bfin_device_gpiokeys = {
 };
 #endif
 
-#if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE)
+#if IS_ENABLED(CONFIG_I2C_GPIO)
 #include <linux/i2c-gpio.h>
 
 static struct i2c_gpio_platform_data i2c_gpio_data = {
@@ -413,32 +413,32 @@ static struct platform_device *stamp_devices[] __initdata = {
 
         &bfin_dpmc,
 
-#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_RTC_DRV_BFIN)
         &rtc_device,
 #endif
 
-#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
+#if IS_ENABLED(CONFIG_SMC91X)
         &smc91x_device,
 #endif
 
 
-#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
+#if IS_ENABLED(CONFIG_SPI_BFIN5XX)
         &bfin_spi0_device,
 #endif
 
-#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN)
 #ifdef CONFIG_SERIAL_BFIN_UART0
         &bfin_uart0_device,
 #endif
 #endif
 
-#if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_SIR)
 #ifdef CONFIG_BFIN_SIR0
         &bfin_sir0_device,
 #endif
 #endif
 
-#if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN_SPORT)
 #ifdef CONFIG_SERIAL_BFIN_SPORT0_UART
         &bfin_sport0_uart_device,
 #endif
@@ -447,11 +447,11 @@ static struct platform_device *stamp_devices[] __initdata = {
 #endif
 #endif
 
-#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
+#if IS_ENABLED(CONFIG_KEYBOARD_GPIO)
         &bfin_device_gpiokeys,
 #endif
 
-#if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE)
+#if IS_ENABLED(CONFIG_I2C_GPIO)
         &i2c_gpio_device,
 #endif
 };
@@ -469,7 +469,7 @@ static int __init blackstamp_init(void)
         if (ret < 0)
                 return ret;
 
-#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
+#if IS_ENABLED(CONFIG_SMC91X)
         /*
          * setup BF533_STAMP CPLD to route AMS3 to Ethernet MAC.
          * the bfin-async-map driver takes care of flipping between
diff --git a/arch/blackfin/mach-bf533/boards/cm_bf533.c b/arch/blackfin/mach-bf533/boards/cm_bf533.c
index fe47e048c4e6..4ef2fb0e48d5 100644
--- a/arch/blackfin/mach-bf533/boards/cm_bf533.c
+++ b/arch/blackfin/mach-bf533/boards/cm_bf533.c
@@ -15,7 +15,7 @@
 #include <linux/spi/spi.h>
 #include <linux/spi/flash.h>
 #include <linux/spi/mmc_spi.h>
-#if defined(CONFIG_USB_ISP1362_HCD) || defined(CONFIG_USB_ISP1362_HCD_MODULE)
+#if IS_ENABLED(CONFIG_USB_ISP1362_HCD)
 #include <linux/usb/isp1362.h>
 #endif
 #include <linux/irq.h>
@@ -29,9 +29,9 @@
  */
 const char bfin_board_name[] = "Bluetechnix CM BF533";
 
-#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
+#if IS_ENABLED(CONFIG_SPI_BFIN5XX)
 /* all SPI peripherals info goes here */
-#if defined(CONFIG_MTD_M25P80) || defined(CONFIG_MTD_M25P80_MODULE)
+#if IS_ENABLED(CONFIG_MTD_M25P80)
 static struct mtd_partition bfin_spi_flash_partitions[] = {
         {
                 .name = "bootloader(spi)",
@@ -62,14 +62,14 @@ static struct bfin5xx_spi_chip spi_flash_chip_info = {
 };
 #endif
 
-#if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
+#if IS_ENABLED(CONFIG_MMC_SPI)
 static struct bfin5xx_spi_chip mmc_spi_chip_info = {
         .enable_dma = 0,
 };
 #endif
 
 static struct spi_board_info bfin_spi_board_info[] __initdata = {
-#if defined(CONFIG_MTD_M25P80) || defined(CONFIG_MTD_M25P80_MODULE)
+#if IS_ENABLED(CONFIG_MTD_M25P80)
         {
                 /* the modalias must be the same as spi device driver name */
                 .modalias = "m25p80",       /* Name of spi_driver for this device */
@@ -82,7 +82,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
         },
 #endif
 
-#if defined(CONFIG_SND_BF5XX_SOC_AD183X) || defined(CONFIG_SND_BF5XX_SOC_AD183X_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_SOC_AD183X)
         {
                 .modalias = "ad183x",
                 .max_speed_hz = 3125000,     /* max spi clock (SCK) speed in HZ */
@@ -91,7 +91,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
         },
 #endif
 
-#if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
+#if IS_ENABLED(CONFIG_MMC_SPI)
         {
                 .modalias = "mmc_spi",
                 .max_speed_hz = 20000000,     /* max spi clock (SCK) speed in HZ */
@@ -140,14 +140,14 @@ static struct platform_device bfin_spi0_device = {
 };
 #endif  /* spi master and devices */
 
-#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_RTC_DRV_BFIN)
 static struct platform_device rtc_device = {
         .name = "rtc-bfin",
         .id   = -1,
 };
 #endif
 
-#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
+#if IS_ENABLED(CONFIG_SMC91X)
 #include <linux/smc91x.h>
 
 static struct smc91x_platdata smc91x_info = {
@@ -178,7 +178,7 @@ static struct platform_device smc91x_device = {
 };
 #endif
 
-#if defined(CONFIG_SMSC911X) || defined(CONFIG_SMSC911X_MODULE)
+#if IS_ENABLED(CONFIG_SMSC911X)
 #include <linux/smsc911x.h>
 
 static struct resource smsc911x_resources[] = {
@@ -212,7 +212,7 @@ static struct platform_device smsc911x_device = {
 };
 #endif
 
-#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN)
 #ifdef CONFIG_SERIAL_BFIN_UART0
 static struct resource bfin_uart0_resources[] = {
         {
@@ -263,7 +263,7 @@ static struct platform_device bfin_uart0_device = {
 #endif
 #endif
 
-#if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_SIR)
 #ifdef CONFIG_BFIN_SIR0
 static struct resource bfin_sir0_resources[] = {
         {
@@ -292,7 +292,7 @@ static struct platform_device bfin_sir0_device = {
 #endif
 #endif
 
-#if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN_SPORT)
 #ifdef CONFIG_SERIAL_BFIN_SPORT0_UART
 static struct resource bfin_sport0_uart_resources[] = {
         {
@@ -363,7 +363,7 @@ static struct platform_device bfin_sport1_uart_device = {
 #endif
 #endif
 
-#if defined(CONFIG_USB_ISP1362_HCD) || defined(CONFIG_USB_ISP1362_HCD_MODULE)
+#if IS_ENABLED(CONFIG_USB_ISP1362_HCD)
 static struct resource isp1362_hcd_resources[] = {
         {
                 .start = 0x20308000,
@@ -403,7 +403,7 @@ static struct platform_device isp1362_hcd_device = {
 #endif
 
 
-#if defined(CONFIG_USB_NET2272) || defined(CONFIG_USB_NET2272_MODULE)
+#if IS_ENABLED(CONFIG_USB_NET2272)
 static struct resource net2272_bfin_resources[] = {
         {
                 .start = 0x20300000,
@@ -426,7 +426,7 @@ static struct platform_device net2272_bfin_device = {
 
 
 
-#if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
+#if IS_ENABLED(CONFIG_MTD_PHYSMAP)
 static struct mtd_partition para_partitions[] = {
         {
                 .name       = "bootloader(nor)",
@@ -495,19 +495,19 @@ static struct platform_device *cm_bf533_devices[] __initdata = {
 
         &bfin_dpmc,
 
-#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN)
 #ifdef CONFIG_SERIAL_BFIN_UART0
         &bfin_uart0_device,
 #endif
 #endif
 
-#if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_SIR)
 #ifdef CONFIG_BFIN_SIR0
         &bfin_sir0_device,
 #endif
 #endif
 
-#if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN_SPORT)
 #ifdef CONFIG_SERIAL_BFIN_SPORT0_UART
         &bfin_sport0_uart_device,
 #endif
@@ -516,31 +516,31 @@ static struct platform_device *cm_bf533_devices[] __initdata = {
 #endif
 #endif
 
-#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_RTC_DRV_BFIN)
         &rtc_device,
 #endif
 
-#if defined(CONFIG_USB_ISP1362_HCD) || defined(CONFIG_USB_ISP1362_HCD_MODULE)
+#if IS_ENABLED(CONFIG_USB_ISP1362_HCD)
         &isp1362_hcd_device,
 #endif
 
-#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
+#if IS_ENABLED(CONFIG_SMC91X)
         &smc91x_device,
 #endif
 
-#if defined(CONFIG_SMSC911X) || defined(CONFIG_SMSC911X_MODULE)
+#if IS_ENABLED(CONFIG_SMSC911X)
         &smsc911x_device,
 #endif
 
-#if defined(CONFIG_USB_NET2272) || defined(CONFIG_USB_NET2272_MODULE)
+#if IS_ENABLED(CONFIG_USB_NET2272)
         &net2272_bfin_device,
 #endif
 
-#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
+#if IS_ENABLED(CONFIG_SPI_BFIN5XX)
         &bfin_spi0_device,
 #endif
 
-#if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
+#if IS_ENABLED(CONFIG_MTD_PHYSMAP)
         &para_flash_device,
 #endif
 };
@@ -549,7 +549,7 @@ static int __init cm_bf533_init(void)
 {
         printk(KERN_INFO "%s(): registering device resources\n", __func__);
         platform_add_devices(cm_bf533_devices, ARRAY_SIZE(cm_bf533_devices));
-#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
+#if IS_ENABLED(CONFIG_SPI_BFIN5XX)
         spi_register_board_info(bfin_spi_board_info, ARRAY_SIZE(bfin_spi_board_info));
 #endif
         return 0;
diff --git a/arch/blackfin/mach-bf533/boards/ezkit.c b/arch/blackfin/mach-bf533/boards/ezkit.c
index 90fb0d14b147..3625e9eaa8a8 100644
--- a/arch/blackfin/mach-bf533/boards/ezkit.c
+++ b/arch/blackfin/mach-bf533/boards/ezkit.c
@@ -14,7 +14,7 @@
 #include <linux/mtd/physmap.h>
 #include <linux/spi/spi.h>
 #include <linux/spi/flash.h>
-#if defined(CONFIG_USB_ISP1362_HCD) || defined(CONFIG_USB_ISP1362_HCD_MODULE)
+#if IS_ENABLED(CONFIG_USB_ISP1362_HCD)
 #include <linux/usb/isp1362.h>
 #endif
 #include <linux/irq.h>
@@ -29,7 +29,7 @@
  */
 const char bfin_board_name[] = "ADI BF533-EZKIT";
 
-#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_RTC_DRV_BFIN)
 static struct platform_device rtc_device = {
         .name = "rtc-bfin",
         .id   = -1,
@@ -40,7 +40,7 @@ static struct platform_device rtc_device = {
  *  USB-LAN EzExtender board
  *  Driver needs to know address, irq and flag pin.
  */
-#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
+#if IS_ENABLED(CONFIG_SMC91X)
 #include <linux/smc91x.h>
 
 static struct smc91x_platdata smc91x_info = {
@@ -72,7 +72,7 @@ static struct platform_device smc91x_device = {
 };
 #endif
 
-#if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
+#if IS_ENABLED(CONFIG_MTD_PHYSMAP)
 static struct mtd_partition ezkit_partitions_a[] = {
         {
                 .name       = "bootloader(nor a)",
@@ -138,7 +138,7 @@ static struct platform_device ezkit_flash_device_b = {
 };
 #endif
 
-#if defined(CONFIG_MTD_PLATRAM) || defined(CONFIG_MTD_PLATRAM_MODULE)
+#if IS_ENABLED(CONFIG_MTD_PLATRAM)
 static struct platdata_mtd_ram sram_data_a = {
         .mapname   = "Flash A SRAM",
         .bankwidth = 2,
@@ -182,7 +182,7 @@ static struct platform_device sram_device_b = {
 };
 #endif
 
-#if defined(CONFIG_MTD_M25P80) || defined(CONFIG_MTD_M25P80_MODULE)
+#if IS_ENABLED(CONFIG_MTD_M25P80)
 static struct mtd_partition bfin_spi_flash_partitions[] = {
         {
                 .name = "bootloader(spi)",
@@ -214,7 +214,7 @@ static struct bfin5xx_spi_chip spi_flash_chip_info = {
 #endif
 
 static struct spi_board_info bfin_spi_board_info[] __initdata = {
-#if defined(CONFIG_MTD_M25P80) || defined(CONFIG_MTD_M25P80_MODULE)
+#if IS_ENABLED(CONFIG_MTD_M25P80)
         {
                 /* the modalias must be the same as spi device driver name */
                 .modalias = "m25p80", /* Name of spi_driver for this device */
@@ -227,7 +227,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
         },
 #endif
 
-#if defined(CONFIG_SND_BF5XX_SOC_AD183X) || defined(CONFIG_SND_BF5XX_SOC_AD183X_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_SOC_AD183X)
         {
                 .modalias = "ad183x",
                 .max_speed_hz = 3125000,     /* max spi clock (SCK) speed in HZ */
@@ -235,7 +235,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .chip_select = 4,
         },
 #endif
-#if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
+#if IS_ENABLED(CONFIG_SPI_SPIDEV)
         {
                 .modalias = "spidev",
                 .max_speed_hz = 3125000,     /* max spi clock (SCK) speed in HZ */
@@ -245,7 +245,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
 #endif
 };
 
-#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
+#if IS_ENABLED(CONFIG_SPI_BFIN5XX)
 /* SPI (0) */
 static struct resource bfin_spi0_resource[] = {
         [0] = {
@@ -283,7 +283,7 @@ static struct platform_device bfin_spi0_device = {
 };
 #endif  /* spi master and devices */
 
-#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN)
 #ifdef CONFIG_SERIAL_BFIN_UART0
 static struct resource bfin_uart0_resources[] = {
         {
@@ -334,7 +334,7 @@ static struct platform_device bfin_uart0_device = {
 #endif
 #endif
 
-#if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_SIR)
 #ifdef CONFIG_BFIN_SIR0
 static struct resource bfin_sir0_resources[] = {
         {
@@ -363,7 +363,7 @@ static struct platform_device bfin_sir0_device = {
 #endif
 #endif
 
-#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
+#if IS_ENABLED(CONFIG_KEYBOARD_GPIO)
 #include <linux/input.h>
 #include <linux/gpio_keys.h>
 
@@ -387,7 +387,7 @@ static struct platform_device bfin_device_gpiokeys = {
 };
 #endif
 
-#if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE)
+#if IS_ENABLED(CONFIG_I2C_GPIO)
 #include <linux/i2c-gpio.h>
 
 static struct i2c_gpio_platform_data i2c_gpio_data = {
@@ -435,14 +435,14 @@ static struct platform_device bfin_dpmc = {
 };
 
 static struct i2c_board_info __initdata bfin_i2c_board_info[] = {
-#if defined(CONFIG_FB_BFIN_7393) || defined(CONFIG_FB_BFIN_7393_MODULE)
+#if IS_ENABLED(CONFIG_FB_BFIN_7393)
         {
                 I2C_BOARD_INFO("bfin-adv7393", 0x2B),
         },
 #endif
 };
 
-#if defined(CONFIG_SND_BF5XX_I2S) || defined(CONFIG_SND_BF5XX_I2S_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_I2S)
 static struct platform_device bfin_i2s = {
         .name = "bfin-i2s",
         .id = CONFIG_SND_BF5XX_SPORT_NUM,
@@ -450,7 +450,7 @@ static struct platform_device bfin_i2s = {
 };
 #endif
 
-#if defined(CONFIG_SND_BF5XX_AC97) || defined(CONFIG_SND_BF5XX_AC97_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_AC97)
 static struct platform_device bfin_ac97 = {
         .name = "bfin-ac97",
         .id = CONFIG_SND_BF5XX_SPORT_NUM,
@@ -462,53 +462,53 @@ static struct platform_device *ezkit_devices[] __initdata = {
 
         &bfin_dpmc,
 
-#if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
+#if IS_ENABLED(CONFIG_MTD_PHYSMAP)
         &ezkit_flash_device_a,
         &ezkit_flash_device_b,
 #endif
 
-#if defined(CONFIG_MTD_PLATRAM) || defined(CONFIG_MTD_PLATRAM_MODULE)
+#if IS_ENABLED(CONFIG_MTD_PLATRAM)
         &sram_device_a,
         &sram_device_b,
 #endif
 
-#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
+#if IS_ENABLED(CONFIG_SMC91X)
         &smc91x_device,
 #endif
 
-#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
+#if IS_ENABLED(CONFIG_SPI_BFIN5XX)
         &bfin_spi0_device,
 #endif
 
-#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_RTC_DRV_BFIN)
         &rtc_device,
 #endif
 
-#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN)
 #ifdef CONFIG_SERIAL_BFIN_UART0
         &bfin_uart0_device,
 #endif
 #endif
 
-#if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_SIR)
 #ifdef CONFIG_BFIN_SIR0
         &bfin_sir0_device,
 #endif
 #endif
 
-#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
+#if IS_ENABLED(CONFIG_KEYBOARD_GPIO)
         &bfin_device_gpiokeys,
 #endif
 
-#if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE)
+#if IS_ENABLED(CONFIG_I2C_GPIO)
         &i2c_gpio_device,
 #endif
 
-#if defined(CONFIG_SND_BF5XX_I2S) || defined(CONFIG_SND_BF5XX_I2S_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_I2S)
         &bfin_i2s,
 #endif
 
-#if defined(CONFIG_SND_BF5XX_AC97) || defined(CONFIG_SND_BF5XX_AC97_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_AC97)
         &bfin_ac97,
 #endif
 };
diff --git a/arch/blackfin/mach-bf533/boards/ip0x.c b/arch/blackfin/mach-bf533/boards/ip0x.c
index e303dae4e2d9..39c8e8547b82 100644
--- a/arch/blackfin/mach-bf533/boards/ip0x.c
+++ b/arch/blackfin/mach-bf533/boards/ip0x.c
@@ -15,7 +15,7 @@
 #include <linux/mtd/partitions.h>
 #include <linux/spi/spi.h>
 #include <linux/spi/flash.h>
-#if defined(CONFIG_USB_ISP1362_HCD) || defined(CONFIG_USB_ISP1362_HCD_MODULE)
+#if IS_ENABLED(CONFIG_USB_ISP1362_HCD)
 #include <linux/usb/isp1362.h>
 #endif
 #include <asm/irq.h>
@@ -32,7 +32,7 @@ const char bfin_board_name[] = "IP04/IP08";
  *  Driver needs to know address, irq and flag pin.
  */
 #if defined(CONFIG_BFIN532_IP0X)
-#if defined(CONFIG_DM9000) || defined(CONFIG_DM9000_MODULE)
+#if IS_ENABLED(CONFIG_DM9000)
 
 #include <linux/dm9000.h>
 
@@ -104,10 +104,10 @@ static struct platform_device dm9000_device2 = {
 #endif
 
 
-#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
+#if IS_ENABLED(CONFIG_SPI_BFIN5XX)
 /* all SPI peripherals info goes here */
 
-#if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
+#if IS_ENABLED(CONFIG_MMC_SPI)
 static struct bfin5xx_spi_chip mmc_spi_chip_info = {
         .enable_dma = 0,                /* if 1 - block!!! */
 };
@@ -116,7 +116,7 @@ static struct bfin5xx_spi_chip mmc_spi_chip_info = {
 /* Notice: for blackfin, the speed_hz is the value of register
  * SPI_BAUD, not the real baudrate */
 static struct spi_board_info bfin_spi_board_info[] __initdata = {
-#if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
+#if IS_ENABLED(CONFIG_MMC_SPI)
         {
                 .modalias = "mmc_spi",
                 .max_speed_hz = 2,
@@ -142,7 +142,7 @@ static struct platform_device spi_bfin_master_device = {
 };
 #endif  /* spi master and devices */
 
-#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN)
 #ifdef CONFIG_SERIAL_BFIN_UART0
 static struct resource bfin_uart0_resources[] = {
         {
@@ -193,7 +193,7 @@ static struct platform_device bfin_uart0_device = {
 #endif
 #endif
 
-#if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_SIR)
 #ifdef CONFIG_BFIN_SIR0
 static struct resource bfin_sir0_resources[] = {
         {
@@ -222,7 +222,7 @@ static struct platform_device bfin_sir0_device = {
 #endif
 #endif
 
-#if defined(CONFIG_USB_ISP1362_HCD) || defined(CONFIG_USB_ISP1362_HCD_MODULE)
+#if IS_ENABLED(CONFIG_USB_ISP1362_HCD)
 static struct resource isp1362_hcd_resources[] = {
         {
                 .start = 0x20300000,
@@ -264,29 +264,29 @@ static struct platform_device isp1362_hcd_device = {
 
 static struct platform_device *ip0x_devices[] __initdata = {
 #if defined(CONFIG_BFIN532_IP0X)
-#if defined(CONFIG_DM9000) || defined(CONFIG_DM9000_MODULE)
+#if IS_ENABLED(CONFIG_DM9000)
         &dm9000_device1,
         &dm9000_device2,
 #endif
 #endif
 
-#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
+#if IS_ENABLED(CONFIG_SPI_BFIN5XX)
         &spi_bfin_master_device,
 #endif
 
-#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN)
 #ifdef CONFIG_SERIAL_BFIN_UART0
         &bfin_uart0_device,
 #endif
 #endif
 
-#if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_SIR)
 #ifdef CONFIG_BFIN_SIR0
         &bfin_sir0_device,
 #endif
 #endif
 
-#if defined(CONFIG_USB_ISP1362_HCD) || defined(CONFIG_USB_ISP1362_HCD_MODULE)
+#if IS_ENABLED(CONFIG_USB_ISP1362_HCD)
         &isp1362_hcd_device,
 #endif
 };
diff --git a/arch/blackfin/mach-bf533/boards/stamp.c b/arch/blackfin/mach-bf533/boards/stamp.c
index 4da70c47cc05..d0989290f54c 100644
--- a/arch/blackfin/mach-bf533/boards/stamp.c
+++ b/arch/blackfin/mach-bf533/boards/stamp.c
@@ -14,7 +14,7 @@
 #include <linux/spi/spi.h>
 #include <linux/spi/flash.h>
 #include <linux/spi/mmc_spi.h>
-#if defined(CONFIG_USB_ISP1362_HCD) || defined(CONFIG_USB_ISP1362_HCD_MODULE)
+#if IS_ENABLED(CONFIG_USB_ISP1362_HCD)
 #include <linux/usb/isp1362.h>
 #endif
 #include <linux/irq.h>
@@ -30,7 +30,7 @@
  */
 const char bfin_board_name[] = "ADI BF533-STAMP";
 
-#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_RTC_DRV_BFIN)
 static struct platform_device rtc_device = {
         .name = "rtc-bfin",
         .id   = -1,
@@ -40,7 +40,7 @@ static struct platform_device rtc_device = {
 /*
  *  Driver needs to know address, irq and flag pin.
  */
-#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
+#if IS_ENABLED(CONFIG_SMC91X)
 #include <linux/smc91x.h>
 
 static struct smc91x_platdata smc91x_info = {
@@ -73,7 +73,7 @@ static struct platform_device smc91x_device = {
 };
 #endif
 
-#if defined(CONFIG_USB_NET2272) || defined(CONFIG_USB_NET2272_MODULE)
+#if IS_ENABLED(CONFIG_USB_NET2272)
 static struct resource net2272_bfin_resources[] = {
         {
                 .start = 0x20300000,
@@ -97,7 +97,7 @@ static struct platform_device net2272_bfin_device = {
 };
 #endif
 
-#if defined(CONFIG_MTD_BFIN_ASYNC) || defined(CONFIG_MTD_BFIN_ASYNC_MODULE)
+#if IS_ENABLED(CONFIG_MTD_BFIN_ASYNC)
 static struct mtd_partition stamp_partitions[] = {
         {
                 .name   = "bootloader(nor)",
@@ -147,7 +147,7 @@ static struct platform_device stamp_flash_device = {
 };
 #endif
 
-#if defined(CONFIG_MTD_M25P80) || defined(CONFIG_MTD_M25P80_MODULE)
+#if IS_ENABLED(CONFIG_MTD_M25P80)
 static struct mtd_partition bfin_spi_flash_partitions[] = {
         {
                 .name = "bootloader(spi)",
@@ -178,7 +178,7 @@ static struct bfin5xx_spi_chip spi_flash_chip_info = {
 };
 #endif
 
-#if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
+#if IS_ENABLED(CONFIG_MMC_SPI)
 #define MMC_SPI_CARD_DETECT_INT IRQ_PF5
 static int bfin_mmc_spi_init(struct device *dev,
         irqreturn_t (*detect_int)(int, void *), void *data)
@@ -206,7 +206,7 @@ static struct bfin5xx_spi_chip  mmc_spi_chip_info = {
 #endif
 
 static struct spi_board_info bfin_spi_board_info[] __initdata = {
-#if defined(CONFIG_MTD_M25P80) || defined(CONFIG_MTD_M25P80_MODULE)
+#if IS_ENABLED(CONFIG_MTD_M25P80)
         {
                 /* the modalias must be the same as spi device driver name */
                 .modalias = "m25p80", /* Name of spi_driver for this device */
@@ -219,8 +219,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
         },
 #endif
 
-#if defined(CONFIG_SND_BF5XX_SOC_AD1836) || \
-        defined(CONFIG_SND_BF5XX_SOC_AD1836_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_SOC_AD1836)
         {
                 .modalias = "ad1836",
                 .max_speed_hz = 3125000,     /* max spi clock (SCK) speed in HZ */
@@ -231,7 +230,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
         },
 #endif
 
-#if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
+#if IS_ENABLED(CONFIG_SPI_SPIDEV)
         {
                 .modalias = "spidev",
                 .max_speed_hz = 3125000,     /* max spi clock (SCK) speed in HZ */
@@ -239,7 +238,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .chip_select = 1,
         },
 #endif
-#if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
+#if IS_ENABLED(CONFIG_MMC_SPI)
         {
                 .modalias = "mmc_spi",
                 .max_speed_hz = 20000000,     /* max spi clock (SCK) speed in HZ */
@@ -252,7 +251,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
 #endif
 };
 
-#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
+#if IS_ENABLED(CONFIG_SPI_BFIN5XX)
 /* SPI (0) */
 static struct resource bfin_spi0_resource[] = {
         [0] = {
@@ -290,7 +289,7 @@ static struct platform_device bfin_spi0_device = {
 };
 #endif  /* spi master and devices */
 
-#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN)
 #ifdef CONFIG_SERIAL_BFIN_UART0
 static struct resource bfin_uart0_resources[] = {
         {
@@ -341,7 +340,7 @@ static struct platform_device bfin_uart0_device = {
 #endif
 #endif
 
-#if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_SIR)
 #ifdef CONFIG_BFIN_SIR0
 static struct resource bfin_sir0_resources[] = {
         {
@@ -370,8 +369,7 @@ static struct platform_device bfin_sir0_device = {
 #endif
 #endif
 
-#if defined(CONFIG_SERIAL_BFIN_SPORT) || \
-        defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN_SPORT)
 #ifdef CONFIG_SERIAL_BFIN_SPORT0_UART
 static struct resource bfin_sport0_uart_resources[] = {
         {
@@ -442,7 +440,7 @@ static struct platform_device bfin_sport1_uart_device = {
 #endif
 #endif
 
-#if defined(CONFIG_BFIN_SPORT) || defined(CONFIG_BFIN_SPORT_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_SPORT)
 static struct resource bfin_sport0_resources[] = {
         {
                 .start = SPORT0_TCR1,
@@ -486,7 +484,7 @@ static struct platform_device bfin_sport0_device = {
 };
 #endif
 
-#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
+#if IS_ENABLED(CONFIG_KEYBOARD_GPIO)
 #include <linux/input.h>
 #include <linux/gpio_keys.h>
 
@@ -509,7 +507,7 @@ static struct platform_device bfin_device_gpiokeys = {
 };
 #endif
 
-#if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE)
+#if IS_ENABLED(CONFIG_I2C_GPIO)
 #include <linux/i2c-gpio.h>
 
 static struct i2c_gpio_platform_data i2c_gpio_data = {
@@ -530,29 +528,29 @@ static struct platform_device i2c_gpio_device = {
 #endif
 
 static struct i2c_board_info __initdata bfin_i2c_board_info[] = {
-#if defined(CONFIG_JOYSTICK_AD7142) || defined(CONFIG_JOYSTICK_AD7142_MODULE)
+#if IS_ENABLED(CONFIG_JOYSTICK_AD7142)
         {
                 I2C_BOARD_INFO("ad7142_joystick", 0x2C),
                 .irq = 39,
         },
 #endif
-#if defined(CONFIG_BFIN_TWI_LCD) || defined(CONFIG_BFIN_TWI_LCD_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_TWI_LCD)
         {
                 I2C_BOARD_INFO("pcf8574_lcd", 0x22),
         },
 #endif
-#if defined(CONFIG_INPUT_PCF8574) || defined(CONFIG_INPUT_PCF8574_MODULE)
+#if IS_ENABLED(CONFIG_INPUT_PCF8574)
         {
                 I2C_BOARD_INFO("pcf8574_keypad", 0x27),
                 .irq = 39,
         },
 #endif
-#if defined(CONFIG_FB_BFIN_7393) || defined(CONFIG_FB_BFIN_7393_MODULE)
+#if IS_ENABLED(CONFIG_FB_BFIN_7393)
         {
                 I2C_BOARD_INFO("bfin-adv7393", 0x2B),
         },
 #endif
-#if defined(CONFIG_BFIN_TWI_LCD) || defined(CONFIG_BFIN_TWI_LCD_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_TWI_LCD)
         {
                 I2C_BOARD_INFO("ad5252", 0x2f),
         },
@@ -586,9 +584,8 @@ static struct platform_device bfin_dpmc = {
         },
 };
 
-#if defined(CONFIG_SND_BF5XX_I2S) || defined(CONFIG_SND_BF5XX_I2S_MODULE) || \
-        defined(CONFIG_SND_BF5XX_AC97) || \
-        defined(CONFIG_SND_BF5XX_AC97_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_I2S) || \
+        IS_ENABLED(CONFIG_SND_BF5XX_AC97)
 
 #include <asm/bfin_sport.h>
 
@@ -640,22 +637,21 @@ static struct resource bfin_snd_resources[][4] = {
 };
 #endif
 
-#if defined(CONFIG_SND_BF5XX_I2S) || defined(CONFIG_SND_BF5XX_I2S_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_I2S)
 static struct platform_device bfin_i2s_pcm = {
         .name = "bfin-i2s-pcm-audio",
         .id = -1,
 };
 #endif
 
-#if defined(CONFIG_SND_BF5XX_AC97) || defined(CONFIG_SND_BF5XX_AC97_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_AC97)
 static struct platform_device bfin_ac97_pcm = {
         .name = "bfin-ac97-pcm-audio",
         .id = -1,
 };
 #endif
 
-#if defined(CONFIG_SND_BF5XX_SOC_AD1836) \
-                || defined(CONFIG_SND_BF5XX_SOC_AD1836_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_SOC_AD1836)
 static const char * const ad1836_link[] = {
         "bfin-i2s.0",
         "spi0.4",
@@ -669,8 +665,7 @@ static struct platform_device bfin_ad1836_machine = {
 };
 #endif
 
-#if defined(CONFIG_SND_BF5XX_SOC_AD73311) || \
-        defined(CONFIG_SND_BF5XX_SOC_AD73311_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_SOC_AD73311)
 static const unsigned ad73311_gpio[] = {
         GPIO_PF4,
 };
@@ -684,22 +679,21 @@ static struct platform_device bfin_ad73311_machine = {
 };
 #endif
 
-#if defined(CONFIG_SND_SOC_AD73311) || defined(CONFIG_SND_SOC_AD73311_MODULE)
+#if IS_ENABLED(CONFIG_SND_SOC_AD73311)
 static struct platform_device bfin_ad73311_codec_device = {
         .name = "ad73311",
         .id = -1,
 };
 #endif
 
-#if defined(CONFIG_SND_SOC_AD74111) || defined(CONFIG_SND_SOC_AD74111_MODULE)
+#if IS_ENABLED(CONFIG_SND_SOC_AD74111)
 static struct platform_device bfin_ad74111_codec_device = {
         .name = "ad74111",
         .id = -1,
 };
 #endif
 
-#if defined(CONFIG_SND_BF5XX_SOC_I2S) || \
-        defined(CONFIG_SND_BF5XX_SOC_I2S_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_SOC_I2S)
 static struct platform_device bfin_i2s = {
         .name = "bfin-i2s",
         .id = CONFIG_SND_BF5XX_SPORT_NUM,
@@ -712,8 +706,7 @@ static struct platform_device bfin_i2s = {
 };
 #endif
 
-#if defined(CONFIG_SND_BF5XX_SOC_AC97) || \
-        defined(CONFIG_SND_BF5XX_SOC_AC97_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_SOC_AC97)
 static struct platform_device bfin_ac97 = {
         .name = "bfin-ac97",
         .id = CONFIG_SND_BF5XX_SPORT_NUM,
@@ -730,36 +723,35 @@ static struct platform_device *stamp_devices[] __initdata = {
 
         &bfin_dpmc,
 
-#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_RTC_DRV_BFIN)
         &rtc_device,
 #endif
 
-#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
+#if IS_ENABLED(CONFIG_SMC91X)
         &smc91x_device,
 #endif
 
-#if defined(CONFIG_USB_NET2272) || defined(CONFIG_USB_NET2272_MODULE)
+#if IS_ENABLED(CONFIG_USB_NET2272)
         &net2272_bfin_device,
 #endif
 
-#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
+#if IS_ENABLED(CONFIG_SPI_BFIN5XX)
         &bfin_spi0_device,
 #endif
 
-#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN)
 #ifdef CONFIG_SERIAL_BFIN_UART0
         &bfin_uart0_device,
 #endif
 #endif
 
-#if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_SIR)
 #ifdef CONFIG_BFIN_SIR0
         &bfin_sir0_device,
 #endif
 #endif
 
-#if defined(CONFIG_SERIAL_BFIN_SPORT) || \
-        defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN_SPORT)
 #ifdef CONFIG_SERIAL_BFIN_SPORT0_UART
         &bfin_sport0_uart_device,
 #endif
@@ -768,58 +760,54 @@ static struct platform_device *stamp_devices[] __initdata = {
 #endif
 #endif
 
-#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
+#if IS_ENABLED(CONFIG_KEYBOARD_GPIO)
         &bfin_device_gpiokeys,
 #endif
 
-#if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE)
+#if IS_ENABLED(CONFIG_I2C_GPIO)
         &i2c_gpio_device,
 #endif
 
-#if defined(CONFIG_MTD_BFIN_ASYNC) || defined(CONFIG_MTD_BFIN_ASYNC_MODULE)
+#if IS_ENABLED(CONFIG_MTD_BFIN_ASYNC)
         &stamp_flash_device,
 #endif
 
-#if defined(CONFIG_SND_BF5XX_I2S) || defined(CONFIG_SND_BF5XX_I2S_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_I2S)
         &bfin_i2s_pcm,
 #endif
 
-#if defined(CONFIG_SND_BF5XX_AC97) || defined(CONFIG_SND_BF5XX_AC97_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_AC97)
         &bfin_ac97_pcm,
 #endif
 
-#if defined(CONFIG_SND_BF5XX_SOC_AD1836) || \
-        defined(CONFIG_SND_BF5XX_SOC_AD1836_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_SOC_AD1836)
         &bfin_ad1836_machine,
 #endif
 
-#if defined(CONFIG_SND_BF5XX_SOC_AD73311) || \
-        defined(CONFIG_SND_BF5XX_SOC_AD73311_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_SOC_AD73311)
         &bfin_ad73311_machine,
 #endif
 
-#if defined(CONFIG_SND_SOC_AD73311) || defined(CONFIG_SND_SOC_AD73311_MODULE)
+#if IS_ENABLED(CONFIG_SND_SOC_AD73311)
         &bfin_ad73311_codec_device,
 #endif
 
-#if defined(CONFIG_SND_SOC_AD74111) || defined(CONFIG_SND_SOC_AD74111_MODULE)
+#if IS_ENABLED(CONFIG_SND_SOC_AD74111)
         &bfin_ad74111_codec_device,
 #endif
 
-#if defined(CONFIG_SND_BF5XX_SOC_I2S) || \
-        defined(CONFIG_SND_BF5XX_SOC_I2S_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_SOC_I2S)
         &bfin_i2s,
 #endif
 
-#if defined(CONFIG_SND_BF5XX_SOC_AC97) || \
-        defined(CONFIG_SND_BF5XX_SOC_AC97_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_SOC_AC97)
         &bfin_ac97,
 #endif
 };
 
 static int __init net2272_init(void)
 {
-#if defined(CONFIG_USB_NET2272) || defined(CONFIG_USB_NET2272_MODULE)
+#if IS_ENABLED(CONFIG_USB_NET2272)
         int ret;
 
         /* Set PF0 to 0, PF1 to 1 make /AMS3 work properly */
@@ -865,7 +853,7 @@ static int __init stamp_init(void)
         if (ret < 0)
                 return ret;
 
-#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
+#if IS_ENABLED(CONFIG_SMC91X)
         /*
          * setup BF533_STAMP CPLD to route AMS3 to Ethernet MAC.
          * the bfin-async-map driver takes care of flipping between
diff --git a/arch/blackfin/mach-bf537/boards/cm_bf537e.c b/arch/blackfin/mach-bf537/boards/cm_bf537e.c
index 85e4fc9f9c22..c65c6dbda3da 100644
--- a/arch/blackfin/mach-bf537/boards/cm_bf537e.c
+++ b/arch/blackfin/mach-bf537/boards/cm_bf537e.c
@@ -16,7 +16,7 @@
 #include <linux/mtd/physmap.h>
 #include <linux/spi/spi.h>
 #include <linux/spi/flash.h>
-#if defined(CONFIG_USB_ISP1362_HCD) || defined(CONFIG_USB_ISP1362_HCD_MODULE)
+#if IS_ENABLED(CONFIG_USB_ISP1362_HCD)
 #include <linux/usb/isp1362.h>
 #endif
 #include <linux/ata_platform.h>
@@ -32,10 +32,10 @@
  */
 const char bfin_board_name[] = "Bluetechnix CM BF537E";
 
-#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
+#if IS_ENABLED(CONFIG_SPI_BFIN5XX)
 /* all SPI peripherals info goes here */
 
-#if defined(CONFIG_MTD_M25P80) || defined(CONFIG_MTD_M25P80_MODULE)
+#if IS_ENABLED(CONFIG_MTD_M25P80)
 static struct mtd_partition bfin_spi_flash_partitions[] = {
         {
                 .name = "bootloader(spi)",
@@ -66,14 +66,14 @@ static struct bfin5xx_spi_chip spi_flash_chip_info = {
 };
 #endif
 
-#if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
+#if IS_ENABLED(CONFIG_MMC_SPI)
 static struct bfin5xx_spi_chip  mmc_spi_chip_info = {
         .enable_dma = 0,
 };
 #endif
 
 static struct spi_board_info bfin_spi_board_info[] __initdata = {
-#if defined(CONFIG_MTD_M25P80) || defined(CONFIG_MTD_M25P80_MODULE)
+#if IS_ENABLED(CONFIG_MTD_M25P80)
         {
                 /* the modalias must be the same as spi device driver name */
                 .modalias = "m25p80", /* Name of spi_driver for this device */
@@ -86,7 +86,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
         },
 #endif
 
-#if defined(CONFIG_SND_BF5XX_SOC_AD183X) || defined(CONFIG_SND_BF5XX_SOC_AD183X_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_SOC_AD183X)
         {
                 .modalias = "ad183x",
                 .max_speed_hz = 3125000,     /* max spi clock (SCK) speed in HZ */
@@ -95,7 +95,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
         },
 #endif
 
-#if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
+#if IS_ENABLED(CONFIG_MMC_SPI)
         {
                 .modalias = "mmc_spi",
                 .max_speed_hz = 20000000,     /* max spi clock (SCK) speed in HZ */
@@ -144,7 +144,7 @@ static struct platform_device bfin_spi0_device = {
 };
 #endif  /* spi master and devices */
 
-#if defined(CONFIG_SPI_BFIN_SPORT) || defined(CONFIG_SPI_BFIN_SPORT_MODULE)
+#if IS_ENABLED(CONFIG_SPI_BFIN_SPORT)
 
 /* SPORT SPI controller data */
 static struct bfin5xx_spi_master bfin_sport_spi0_info = {
@@ -209,20 +209,20 @@ static struct platform_device bfin_sport_spi1_device = {
 
 #endif  /* sport spi master and devices */
 
-#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_RTC_DRV_BFIN)
 static struct platform_device rtc_device = {
         .name = "rtc-bfin",
         .id   = -1,
 };
 #endif
 
-#if defined(CONFIG_FB_HITACHI_TX09) || defined(CONFIG_FB_HITACHI_TX09_MODULE)
+#if IS_ENABLED(CONFIG_FB_HITACHI_TX09)
 static struct platform_device hitachi_fb_device = {
         .name = "hitachi-tx09",
 };
 #endif
 
-#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
+#if IS_ENABLED(CONFIG_SMC91X)
 #include <linux/smc91x.h>
 
 static struct smc91x_platdata smc91x_info = {
@@ -254,7 +254,7 @@ static struct platform_device smc91x_device = {
 };
 #endif
 
-#if defined(CONFIG_USB_ISP1362_HCD) || defined(CONFIG_USB_ISP1362_HCD_MODULE)
+#if IS_ENABLED(CONFIG_USB_ISP1362_HCD)
 static struct resource isp1362_hcd_resources[] = {
         {
                 .start = 0x20308000,
@@ -293,7 +293,7 @@ static struct platform_device isp1362_hcd_device = {
 };
 #endif
 
-#if defined(CONFIG_USB_NET2272) || defined(CONFIG_USB_NET2272_MODULE)
+#if IS_ENABLED(CONFIG_USB_NET2272)
 static struct resource net2272_bfin_resources[] = {
         {
                 .start = 0x20300000,
@@ -314,7 +314,7 @@ static struct platform_device net2272_bfin_device = {
 };
 #endif
 
-#if defined(CONFIG_MTD_GPIO_ADDR) || defined(CONFIG_MTD_GPIO_ADDR_MODULE)
+#if IS_ENABLED(CONFIG_MTD_GPIO_ADDR)
 static struct mtd_partition cm_partitions[] = {
         {
                 .name   = "bootloader(nor)",
@@ -363,7 +363,7 @@ static struct platform_device cm_flash_device = {
 };
 #endif
 
-#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN)
 #ifdef CONFIG_SERIAL_BFIN_UART0
 static struct resource bfin_uart0_resources[] = {
         {
@@ -498,7 +498,7 @@ static struct platform_device bfin_uart1_device = {
 #endif
 #endif
 
-#if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_SIR)
 #ifdef CONFIG_BFIN_SIR0
 static struct resource bfin_sir0_resources[] = {
         {
@@ -551,7 +551,7 @@ static struct platform_device bfin_sir1_device = {
 #endif
 #endif
 
-#if defined(CONFIG_I2C_BLACKFIN_TWI) || defined(CONFIG_I2C_BLACKFIN_TWI_MODULE)
+#if IS_ENABLED(CONFIG_I2C_BLACKFIN_TWI)
 static const u16 bfin_twi0_pins[] = {P_TWI0_SCL, P_TWI0_SDA, 0};
 
 static struct resource bfin_twi0_resource[] = {
@@ -578,14 +578,14 @@ static struct platform_device i2c_bfin_twi_device = {
 };
 #endif
 
-#if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE) \
-|| defined(CONFIG_BFIN_SPORT) || defined(CONFIG_BFIN_SPORT_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN_SPORT) \
+|| IS_ENABLED(CONFIG_BFIN_SPORT)
 unsigned short bfin_sport0_peripherals[] = {
         P_SPORT0_TFS, P_SPORT0_DTPRI, P_SPORT0_TSCLK, P_SPORT0_RFS,
         P_SPORT0_DRPRI, P_SPORT0_RSCLK, P_SPORT0_DRSEC, P_SPORT0_DTSEC, 0
 };
 #endif
-#if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN_SPORT)
 #ifdef CONFIG_SERIAL_BFIN_SPORT0_UART
 static struct resource bfin_sport0_uart_resources[] = {
         {
@@ -650,7 +650,7 @@ static struct platform_device bfin_sport1_uart_device = {
 };
 #endif
 #endif
-#if defined(CONFIG_BFIN_SPORT) || defined(CONFIG_BFIN_SPORT_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_SPORT)
 static struct resource bfin_sport0_resources[] = {
         {
                 .start = SPORT0_TCR1,
@@ -694,7 +694,7 @@ static struct platform_device bfin_sport0_device = {
 };
 #endif
 
-#if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_MAC)
 #include <linux/bfin_mac.h>
 static const unsigned short bfin_mac_peripherals[] = P_MII0;
 
@@ -727,7 +727,7 @@ static struct platform_device bfin_mac_device = {
 };
 #endif
 
-#if defined(CONFIG_PATA_PLATFORM) || defined(CONFIG_PATA_PLATFORM_MODULE)
+#if IS_ENABLED(CONFIG_PATA_PLATFORM)
 #define PATA_INT        IRQ_PF14
 
 static struct pata_platform_info bfin_pata_platform_data = {
@@ -795,19 +795,19 @@ static struct platform_device *cm_bf537e_devices[] __initdata = {
 
         &bfin_dpmc,
 
-#if defined(CONFIG_BFIN_SPORT) || defined(CONFIG_BFIN_SPORT_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_SPORT)
         &bfin_sport0_device,
 #endif
 
-#if defined(CONFIG_FB_HITACHI_TX09) || defined(CONFIG_FB_HITACHI_TX09_MODULE)
+#if IS_ENABLED(CONFIG_FB_HITACHI_TX09)
         &hitachi_fb_device,
 #endif
 
-#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_RTC_DRV_BFIN)
         &rtc_device,
 #endif
 
-#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN)
 #ifdef CONFIG_SERIAL_BFIN_UART0
         &bfin_uart0_device,
 #endif
@@ -816,7 +816,7 @@ static struct platform_device *cm_bf537e_devices[] __initdata = {
 #endif
 #endif
 
-#if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_SIR)
 #ifdef CONFIG_BFIN_SIR0
         &bfin_sir0_device,
 #endif
@@ -825,11 +825,11 @@ static struct platform_device *cm_bf537e_devices[] __initdata = {
 #endif
 #endif
 
-#if defined(CONFIG_I2C_BLACKFIN_TWI) || defined(CONFIG_I2C_BLACKFIN_TWI_MODULE)
+#if IS_ENABLED(CONFIG_I2C_BLACKFIN_TWI)
         &i2c_bfin_twi_device,
 #endif
 
-#if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN_SPORT)
 #ifdef CONFIG_SERIAL_BFIN_SPORT0_UART
         &bfin_sport0_uart_device,
 #endif
@@ -838,44 +838,44 @@ static struct platform_device *cm_bf537e_devices[] __initdata = {
 #endif
 #endif
 
-#if defined(CONFIG_USB_ISP1362_HCD) || defined(CONFIG_USB_ISP1362_HCD_MODULE)
+#if IS_ENABLED(CONFIG_USB_ISP1362_HCD)
         &isp1362_hcd_device,
 #endif
 
-#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
+#if IS_ENABLED(CONFIG_SMC91X)
         &smc91x_device,
 #endif
 
-#if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_MAC)
         &bfin_mii_bus,
         &bfin_mac_device,
 #endif
 
-#if defined(CONFIG_USB_NET2272) || defined(CONFIG_USB_NET2272_MODULE)
+#if IS_ENABLED(CONFIG_USB_NET2272)
         &net2272_bfin_device,
 #endif
 
-#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
+#if IS_ENABLED(CONFIG_SPI_BFIN5XX)
         &bfin_spi0_device,
 #endif
 
-#if defined(CONFIG_SPI_BFIN_SPORT) || defined(CONFIG_SPI_BFIN_SPORT_MODULE)
+#if IS_ENABLED(CONFIG_SPI_BFIN_SPORT)
         &bfin_sport_spi0_device,
         &bfin_sport_spi1_device,
 #endif
 
-#if defined(CONFIG_PATA_PLATFORM) || defined(CONFIG_PATA_PLATFORM_MODULE)
+#if IS_ENABLED(CONFIG_PATA_PLATFORM)
         &bfin_pata_device,
 #endif
 
-#if defined(CONFIG_MTD_GPIO_ADDR) || defined(CONFIG_MTD_GPIO_ADDR_MODULE)
+#if IS_ENABLED(CONFIG_MTD_GPIO_ADDR)
         &cm_flash_device,
 #endif
 };
 
 static int __init net2272_init(void)
 {
-#if defined(CONFIG_USB_NET2272) || defined(CONFIG_USB_NET2272_MODULE)
+#if IS_ENABLED(CONFIG_USB_NET2272)
         int ret;
 
         ret = gpio_request(GPIO_PG14, "net2272");
@@ -895,11 +895,11 @@ static int __init cm_bf537e_init(void)
 {
         printk(KERN_INFO "%s(): registering device resources\n", __func__);
         platform_add_devices(cm_bf537e_devices, ARRAY_SIZE(cm_bf537e_devices));
-#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
+#if IS_ENABLED(CONFIG_SPI_BFIN5XX)
         spi_register_board_info(bfin_spi_board_info, ARRAY_SIZE(bfin_spi_board_info));
 #endif
 
-#if defined(CONFIG_PATA_PLATFORM) || defined(CONFIG_PATA_PLATFORM_MODULE)
+#if IS_ENABLED(CONFIG_PATA_PLATFORM)
         irq_set_status_flags(PATA_INT, IRQ_NOAUTOEN);
 #endif
 
diff --git a/arch/blackfin/mach-bf537/boards/cm_bf537u.c b/arch/blackfin/mach-bf537/boards/cm_bf537u.c
index 0143d8bef909..af58454b4bff 100644
--- a/arch/blackfin/mach-bf537/boards/cm_bf537u.c
+++ b/arch/blackfin/mach-bf537/boards/cm_bf537u.c
@@ -16,7 +16,7 @@
 #include <linux/mtd/physmap.h>
 #include <linux/spi/spi.h>
 #include <linux/spi/flash.h>
-#if defined(CONFIG_USB_ISP1362_HCD) || defined(CONFIG_USB_ISP1362_HCD_MODULE)
+#if IS_ENABLED(CONFIG_USB_ISP1362_HCD)
 #include <linux/usb/isp1362.h>
 #endif
 #include <linux/ata_platform.h>
@@ -32,10 +32,10 @@
  */
 const char bfin_board_name[] = "Bluetechnix CM BF537U";
 
-#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
+#if IS_ENABLED(CONFIG_SPI_BFIN5XX)
 /* all SPI peripherals info goes here */
 
-#if defined(CONFIG_MTD_M25P80) || defined(CONFIG_MTD_M25P80_MODULE)
+#if IS_ENABLED(CONFIG_MTD_M25P80)
 static struct mtd_partition bfin_spi_flash_partitions[] = {
         {
                 .name = "bootloader(spi)",
@@ -66,14 +66,14 @@ static struct bfin5xx_spi_chip spi_flash_chip_info = {
 };
 #endif
 
-#if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
+#if IS_ENABLED(CONFIG_MMC_SPI)
 static struct bfin5xx_spi_chip  mmc_spi_chip_info = {
         .enable_dma = 0,
 };
 #endif
 
 static struct spi_board_info bfin_spi_board_info[] __initdata = {
-#if defined(CONFIG_MTD_M25P80) || defined(CONFIG_MTD_M25P80_MODULE)
+#if IS_ENABLED(CONFIG_MTD_M25P80)
         {
                 /* the modalias must be the same as spi device driver name */
                 .modalias = "m25p80", /* Name of spi_driver for this device */
@@ -86,7 +86,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
         },
 #endif
 
-#if defined(CONFIG_SND_BF5XX_SOC_AD183X) || defined(CONFIG_SND_BF5XX_SOC_AD183X_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_SOC_AD183X)
         {
                 .modalias = "ad183x",
                 .max_speed_hz = 3125000,     /* max spi clock (SCK) speed in HZ */
@@ -95,7 +95,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
         },
 #endif
 
-#if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
+#if IS_ENABLED(CONFIG_MMC_SPI)
         {
                 .modalias = "mmc_spi",
                 .max_speed_hz = 20000000,     /* max spi clock (SCK) speed in HZ */
@@ -144,20 +144,20 @@ static struct platform_device bfin_spi0_device = {
 };
 #endif  /* spi master and devices */
 
-#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_RTC_DRV_BFIN)
 static struct platform_device rtc_device = {
         .name = "rtc-bfin",
         .id   = -1,
 };
 #endif
 
-#if defined(CONFIG_FB_HITACHI_TX09) || defined(CONFIG_FB_HITACHI_TX09_MODULE)
+#if IS_ENABLED(CONFIG_FB_HITACHI_TX09)
 static struct platform_device hitachi_fb_device = {
         .name = "hitachi-tx09",
 };
 #endif
 
-#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
+#if IS_ENABLED(CONFIG_SMC91X)
 #include <linux/smc91x.h>
 
 static struct smc91x_platdata smc91x_info = {
@@ -189,7 +189,7 @@ static struct platform_device smc91x_device = {
 };
 #endif
 
-#if defined(CONFIG_USB_ISP1362_HCD) || defined(CONFIG_USB_ISP1362_HCD_MODULE)
+#if IS_ENABLED(CONFIG_USB_ISP1362_HCD)
 static struct resource isp1362_hcd_resources[] = {
         {
                 .start = 0x20308000,
@@ -228,7 +228,7 @@ static struct platform_device isp1362_hcd_device = {
 };
 #endif
 
-#if defined(CONFIG_USB_NET2272) || defined(CONFIG_USB_NET2272_MODULE)
+#if IS_ENABLED(CONFIG_USB_NET2272)
 static struct resource net2272_bfin_resources[] = {
         {
                 .start = 0x20200000,
@@ -249,7 +249,7 @@ static struct platform_device net2272_bfin_device = {
 };
 #endif
 
-#if defined(CONFIG_MTD_GPIO_ADDR) || defined(CONFIG_MTD_GPIO_ADDR_MODULE)
+#if IS_ENABLED(CONFIG_MTD_GPIO_ADDR)
 static struct mtd_partition cm_partitions[] = {
         {
                 .name   = "bootloader(nor)",
@@ -298,7 +298,7 @@ static struct platform_device cm_flash_device = {
 };
 #endif
 
-#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN)
 #ifdef CONFIG_SERIAL_BFIN_UART0
 static struct resource bfin_uart0_resources[] = {
         {
@@ -397,7 +397,7 @@ static struct platform_device bfin_uart1_device = {
 #endif
 #endif
 
-#if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_SIR)
 #ifdef CONFIG_BFIN_SIR0
 static struct resource bfin_sir0_resources[] = {
         {
@@ -450,7 +450,7 @@ static struct platform_device bfin_sir1_device = {
 #endif
 #endif
 
-#if defined(CONFIG_I2C_BLACKFIN_TWI) || defined(CONFIG_I2C_BLACKFIN_TWI_MODULE)
+#if IS_ENABLED(CONFIG_I2C_BLACKFIN_TWI)
 static const u16 bfin_twi0_pins[] = {P_TWI0_SCL, P_TWI0_SDA, 0};
 
 static struct resource bfin_twi0_resource[] = {
@@ -477,7 +477,7 @@ static struct platform_device i2c_bfin_twi_device = {
 };
 #endif
 
-#if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN_SPORT)
 #ifdef CONFIG_SERIAL_BFIN_SPORT0_UART
 static struct resource bfin_sport0_uart_resources[] = {
         {
@@ -548,7 +548,7 @@ static struct platform_device bfin_sport1_uart_device = {
 #endif
 #endif
 
-#if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_MAC)
 #include <linux/bfin_mac.h>
 static const unsigned short bfin_mac_peripherals[] = P_MII0;
 
@@ -581,7 +581,7 @@ static struct platform_device bfin_mac_device = {
 };
 #endif
 
-#if defined(CONFIG_PATA_PLATFORM) || defined(CONFIG_PATA_PLATFORM_MODULE)
+#if IS_ENABLED(CONFIG_PATA_PLATFORM)
 #define PATA_INT        IRQ_PF14
 
 static struct pata_platform_info bfin_pata_platform_data = {
@@ -649,15 +649,15 @@ static struct platform_device *cm_bf537u_devices[] __initdata = {
 
         &bfin_dpmc,
 
-#if defined(CONFIG_FB_HITACHI_TX09) || defined(CONFIG_FB_HITACHI_TX09_MODULE)
+#if IS_ENABLED(CONFIG_FB_HITACHI_TX09)
         &hitachi_fb_device,
 #endif
 
-#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_RTC_DRV_BFIN)
         &rtc_device,
 #endif
 
-#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN)
 #ifdef CONFIG_SERIAL_BFIN_UART0
         &bfin_uart0_device,
 #endif
@@ -666,7 +666,7 @@ static struct platform_device *cm_bf537u_devices[] __initdata = {
 #endif
 #endif
 
-#if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_SIR)
 #ifdef CONFIG_BFIN_SIR0
         &bfin_sir0_device,
 #endif
@@ -675,11 +675,11 @@ static struct platform_device *cm_bf537u_devices[] __initdata = {
 #endif
 #endif
 
-#if defined(CONFIG_I2C_BLACKFIN_TWI) || defined(CONFIG_I2C_BLACKFIN_TWI_MODULE)
+#if IS_ENABLED(CONFIG_I2C_BLACKFIN_TWI)
         &i2c_bfin_twi_device,
 #endif
 
-#if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN_SPORT)
 #ifdef CONFIG_SERIAL_BFIN_SPORT0_UART
         &bfin_sport0_uart_device,
 #endif
@@ -688,39 +688,39 @@ static struct platform_device *cm_bf537u_devices[] __initdata = {
 #endif
 #endif
 
-#if defined(CONFIG_USB_ISP1362_HCD) || defined(CONFIG_USB_ISP1362_HCD_MODULE)
+#if IS_ENABLED(CONFIG_USB_ISP1362_HCD)
         &isp1362_hcd_device,
 #endif
 
-#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
+#if IS_ENABLED(CONFIG_SMC91X)
         &smc91x_device,
 #endif
 
-#if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_MAC)
         &bfin_mii_bus,
         &bfin_mac_device,
 #endif
 
-#if defined(CONFIG_USB_NET2272) || defined(CONFIG_USB_NET2272_MODULE)
+#if IS_ENABLED(CONFIG_USB_NET2272)
         &net2272_bfin_device,
 #endif
 
-#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
+#if IS_ENABLED(CONFIG_SPI_BFIN5XX)
         &bfin_spi0_device,
 #endif
 
-#if defined(CONFIG_PATA_PLATFORM) || defined(CONFIG_PATA_PLATFORM_MODULE)
+#if IS_ENABLED(CONFIG_PATA_PLATFORM)
         &bfin_pata_device,
 #endif
 
-#if defined(CONFIG_MTD_GPIO_ADDR) || defined(CONFIG_MTD_GPIO_ADDR_MODULE)
+#if IS_ENABLED(CONFIG_MTD_GPIO_ADDR)
         &cm_flash_device,
 #endif
 };
 
 static int __init net2272_init(void)
 {
-#if defined(CONFIG_USB_NET2272) || defined(CONFIG_USB_NET2272_MODULE)
+#if IS_ENABLED(CONFIG_USB_NET2272)
         int ret;
 
         ret = gpio_request(GPIO_PH15, driver_name);
@@ -752,11 +752,11 @@ static int __init cm_bf537u_init(void)
 {
         printk(KERN_INFO "%s(): registering device resources\n", __func__);
         platform_add_devices(cm_bf537u_devices, ARRAY_SIZE(cm_bf537u_devices));
-#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
+#if IS_ENABLED(CONFIG_SPI_BFIN5XX)
         spi_register_board_info(bfin_spi_board_info, ARRAY_SIZE(bfin_spi_board_info));
 #endif
 
-#if defined(CONFIG_PATA_PLATFORM) || defined(CONFIG_PATA_PLATFORM_MODULE)
+#if IS_ENABLED(CONFIG_PATA_PLATFORM)
         irq_set_status_flags(PATA_INT, IRQ_NOAUTOEN);
 #endif
 
diff --git a/arch/blackfin/mach-bf537/boards/dnp5370.c b/arch/blackfin/mach-bf537/boards/dnp5370.c
index 8bbf0a23fd49..e79b3b810c39 100644
--- a/arch/blackfin/mach-bf537/boards/dnp5370.c
+++ b/arch/blackfin/mach-bf537/boards/dnp5370.c
@@ -41,14 +41,14 @@ const char bfin_board_name[] = "DNP/5370";
 #define FLASH_MAC               0x202f0000
 #define CONFIG_MTD_PHYSMAP_LEN  0x300000
 
-#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_RTC_DRV_BFIN)
 static struct platform_device rtc_device = {
         .name = "rtc-bfin",
         .id   = -1,
 };
 #endif
 
-#if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_MAC)
 #include <linux/bfin_mac.h>
 static const unsigned short bfin_mac_peripherals[] = P_RMII0;
 
@@ -81,7 +81,7 @@ static struct platform_device bfin_mac_device = {
 };
 #endif
 
-#if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
+#if IS_ENABLED(CONFIG_MTD_PHYSMAP)
 static struct mtd_partition asmb_flash_partitions[] = {
         {
                 .name       = "bootloader(nor)",
@@ -125,9 +125,9 @@ static struct platform_device asmb_flash_device = {
 };
 #endif
 
-#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
+#if IS_ENABLED(CONFIG_SPI_BFIN5XX)
 
-#if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
+#if IS_ENABLED(CONFIG_MMC_SPI)
 
 static struct bfin5xx_spi_chip mmc_spi_chip_info = {
         .enable_dma    = 0,      /* use no dma transfer with this chip*/
@@ -135,7 +135,7 @@ static struct bfin5xx_spi_chip mmc_spi_chip_info = {
 
 #endif
 
-#if defined(CONFIG_MTD_DATAFLASH) || defined(CONFIG_MTD_DATAFLASH_MODULE)
+#if IS_ENABLED(CONFIG_MTD_DATAFLASH)
 /* This mapping is for at45db642 it has 1056 page size,
  * partition size and offset should be page aligned
  */
@@ -166,7 +166,7 @@ static struct bfin5xx_spi_chip spi_dataflash_chip_info = {
 
 static struct spi_board_info bfin_spi_board_info[] __initdata = {
 /* SD/MMC card reader at SPI bus */
-#if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
+#if IS_ENABLED(CONFIG_MMC_SPI)
         {
                 .modalias        = "mmc_spi",
                 .max_speed_hz    = 20000000,
@@ -178,7 +178,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
 #endif
 
 /* 8 Megabyte Atmel NOR flash chip at SPI bus */
-#if defined(CONFIG_MTD_DATAFLASH) || defined(CONFIG_MTD_DATAFLASH_MODULE)
+#if IS_ENABLED(CONFIG_MTD_DATAFLASH)
         {
         .modalias        = "mtd_dataflash",
         .max_speed_hz    = 16700000,
@@ -228,7 +228,7 @@ static struct platform_device spi_bfin_master_device = {
 };
 #endif
 
-#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN)
 #ifdef CONFIG_SERIAL_BFIN_UART0
 static struct resource bfin_uart0_resources[] = {
         {
@@ -328,7 +328,7 @@ static struct platform_device bfin_uart1_device = {
 #endif
 #endif
 
-#if defined(CONFIG_I2C_BLACKFIN_TWI) || defined(CONFIG_I2C_BLACKFIN_TWI_MODULE)
+#if IS_ENABLED(CONFIG_I2C_BLACKFIN_TWI)
 static const u16 bfin_twi0_pins[] = {P_TWI0_SCL, P_TWI0_SDA, 0};
 
 static struct resource bfin_twi0_resource[] = {
@@ -357,7 +357,7 @@ static struct platform_device i2c_bfin_twi_device = {
 
 static struct platform_device *dnp5370_devices[] __initdata = {
 
-#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN)
 #ifdef CONFIG_SERIAL_BFIN_UART0
         &bfin_uart0_device,
 #endif
@@ -366,24 +366,24 @@ static struct platform_device *dnp5370_devices[] __initdata = {
 #endif
 #endif
 
-#if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
+#if IS_ENABLED(CONFIG_MTD_PHYSMAP)
         &asmb_flash_device,
 #endif
 
-#if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_MAC)
         &bfin_mii_bus,
         &bfin_mac_device,
 #endif
 
-#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
+#if IS_ENABLED(CONFIG_SPI_BFIN5XX)
         &spi_bfin_master_device,
 #endif
 
-#if defined(CONFIG_I2C_BLACKFIN_TWI) || defined(CONFIG_I2C_BLACKFIN_TWI_MODULE)
+#if IS_ENABLED(CONFIG_I2C_BLACKFIN_TWI)
         &i2c_bfin_twi_device,
 #endif
 
-#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_RTC_DRV_BFIN)
         &rtc_device,
 #endif
 
diff --git a/arch/blackfin/mach-bf537/boards/minotaur.c b/arch/blackfin/mach-bf537/boards/minotaur.c
index a10f90e444bc..dd7bda07bf90 100644
--- a/arch/blackfin/mach-bf537/boards/minotaur.c
+++ b/arch/blackfin/mach-bf537/boards/minotaur.c
@@ -13,7 +13,7 @@
 #include <linux/mtd/partitions.h>
 #include <linux/spi/spi.h>
 #include <linux/spi/flash.h>
-#if defined(CONFIG_USB_ISP1362_HCD) || defined(CONFIG_USB_ISP1362_HCD_MODULE)
+#if IS_ENABLED(CONFIG_USB_ISP1362_HCD)
 #include <linux/usb/isp1362.h>
 #endif
 #include <linux/ata_platform.h>
@@ -31,7 +31,7 @@
  */
 const char bfin_board_name[] = "CamSig Minotaur BF537";
 
-#if defined(CONFIG_BFIN_CFPCMCIA) || defined(CONFIG_BFIN_CFPCMCIA_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_CFPCMCIA)
 static struct resource bfin_pcmcia_cf_resources[] = {
         {
                 .start = 0x20310000, /* IO PORT */
@@ -60,14 +60,14 @@ static struct platform_device bfin_pcmcia_cf_device = {
 };
 #endif
 
-#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_RTC_DRV_BFIN)
 static struct platform_device rtc_device = {
         .name = "rtc-bfin",
         .id   = -1,
 };
 #endif
 
-#if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_MAC)
 #include <linux/bfin_mac.h>
 static const unsigned short bfin_mac_peripherals[] = P_MII0;
 
@@ -100,7 +100,7 @@ static struct platform_device bfin_mac_device = {
 };
 #endif
 
-#if defined(CONFIG_USB_NET2272) || defined(CONFIG_USB_NET2272_MODULE)
+#if IS_ENABLED(CONFIG_USB_NET2272)
 static struct resource net2272_bfin_resources[] = {
         {
                 .start = 0x20300000,
@@ -121,11 +121,10 @@ static struct platform_device net2272_bfin_device = {
 };
 #endif
 
-#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
+#if IS_ENABLED(CONFIG_SPI_BFIN5XX)
 /* all SPI peripherals info goes here */
 
-#if defined(CONFIG_MTD_M25P80) \
-        || defined(CONFIG_MTD_M25P80_MODULE)
+#if IS_ENABLED(CONFIG_MTD_M25P80)
 
 /* Partition sizes */
 #define FLASH_SIZE       0x00400000
@@ -162,15 +161,14 @@ static struct bfin5xx_spi_chip spi_flash_chip_info = {
 };
 #endif
 
-#if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
+#if IS_ENABLED(CONFIG_MMC_SPI)
 static struct bfin5xx_spi_chip mmc_spi_chip_info = {
         .enable_dma = 0,
 };
 #endif
 
 static struct spi_board_info bfin_spi_board_info[] __initdata = {
-#if defined(CONFIG_MTD_M25P80) \
-        || defined(CONFIG_MTD_M25P80_MODULE)
+#if IS_ENABLED(CONFIG_MTD_M25P80)
         {
                 /* the modalias must be the same as spi device driver name */
                 .modalias = "m25p80", /* Name of spi_driver for this device */
@@ -183,7 +181,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
         },
 #endif
 
-#if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
+#if IS_ENABLED(CONFIG_MMC_SPI)
         {
                 .modalias = "mmc_spi",
                 .max_speed_hz = 5000000,     /* max spi clock (SCK) speed in HZ */
@@ -231,7 +229,7 @@ static struct platform_device bfin_spi0_device = {
 };
 #endif  /* spi master and devices */
 
-#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN)
 #ifdef CONFIG_SERIAL_BFIN_UART0
 static struct resource bfin_uart0_resources[] = {
         {
@@ -330,7 +328,7 @@ static struct platform_device bfin_uart1_device = {
 #endif
 #endif
 
-#if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_SIR)
 #ifdef CONFIG_BFIN_SIR0
 static struct resource bfin_sir0_resources[] = {
         {
@@ -385,7 +383,7 @@ static struct platform_device bfin_sir1_device = {
 #endif
 #endif
 
-#if defined(CONFIG_I2C_BLACKFIN_TWI) || defined(CONFIG_I2C_BLACKFIN_TWI_MODULE)
+#if IS_ENABLED(CONFIG_I2C_BLACKFIN_TWI)
 static const u16 bfin_twi0_pins[] = {P_TWI0_SCL, P_TWI0_SDA, 0};
 
 static struct resource bfin_twi0_resource[] = {
@@ -412,7 +410,7 @@ static struct platform_device i2c_bfin_twi_device = {
 };
 #endif
 
-#if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN_SPORT)
 #ifdef CONFIG_SERIAL_BFIN_SPORT0_UART
 static struct resource bfin_sport0_uart_resources[] = {
         {
@@ -484,28 +482,28 @@ static struct platform_device bfin_sport1_uart_device = {
 #endif
 
 static struct platform_device *minotaur_devices[] __initdata = {
-#if defined(CONFIG_BFIN_CFPCMCIA) || defined(CONFIG_BFIN_CFPCMCIA_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_CFPCMCIA)
         &bfin_pcmcia_cf_device,
 #endif
 
-#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_RTC_DRV_BFIN)
         &rtc_device,
 #endif
 
-#if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_MAC)
         &bfin_mii_bus,
         &bfin_mac_device,
 #endif
 
-#if defined(CONFIG_USB_NET2272) || defined(CONFIG_USB_NET2272_MODULE)
+#if IS_ENABLED(CONFIG_USB_NET2272)
         &net2272_bfin_device,
 #endif
 
-#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
+#if IS_ENABLED(CONFIG_SPI_BFIN5XX)
         &bfin_spi0_device,
 #endif
 
-#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN)
 #ifdef CONFIG_SERIAL_BFIN_UART0
         &bfin_uart0_device,
 #endif
@@ -514,7 +512,7 @@ static struct platform_device *minotaur_devices[] __initdata = {
 #endif
 #endif
 
-#if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_SIR)
 #ifdef CONFIG_BFIN_SIR0
         &bfin_sir0_device,
 #endif
@@ -523,11 +521,11 @@ static struct platform_device *minotaur_devices[] __initdata = {
 #endif
 #endif
 
-#if defined(CONFIG_I2C_BLACKFIN_TWI) || defined(CONFIG_I2C_BLACKFIN_TWI_MODULE)
+#if IS_ENABLED(CONFIG_I2C_BLACKFIN_TWI)
         &i2c_bfin_twi_device,
 #endif
 
-#if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN_SPORT)
 #ifdef CONFIG_SERIAL_BFIN_SPORT0_UART
         &bfin_sport0_uart_device,
 #endif
@@ -542,7 +540,7 @@ static int __init minotaur_init(void)
 {
         printk(KERN_INFO "%s(): registering device resources\n", __func__);
         platform_add_devices(minotaur_devices, ARRAY_SIZE(minotaur_devices));
-#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
+#if IS_ENABLED(CONFIG_SPI_BFIN5XX)
         spi_register_board_info(bfin_spi_board_info,
                                 ARRAY_SIZE(bfin_spi_board_info));
 #endif
diff --git a/arch/blackfin/mach-bf537/boards/pnav10.c b/arch/blackfin/mach-bf537/boards/pnav10.c
index 6b395510405b..06a50ddb54c0 100644
--- a/arch/blackfin/mach-bf537/boards/pnav10.c
+++ b/arch/blackfin/mach-bf537/boards/pnav10.c
@@ -30,7 +30,7 @@ const char bfin_board_name[] = "ADI PNAV-1.0";
  *  Driver needs to know address, irq and flag pin.
  */
 
-#if defined(CONFIG_BFIN_CFPCMCIA) || defined(CONFIG_BFIN_CFPCMCIA_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_CFPCMCIA)
 static struct resource bfin_pcmcia_cf_resources[] = {
         {
                 .start = 0x20310000, /* IO PORT */
@@ -59,14 +59,14 @@ static struct platform_device bfin_pcmcia_cf_device = {
 };
 #endif
 
-#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_RTC_DRV_BFIN)
 static struct platform_device rtc_device = {
         .name = "rtc-bfin",
         .id   = -1,
 };
 #endif
 
-#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
+#if IS_ENABLED(CONFIG_SMC91X)
 #include <linux/smc91x.h>
 
 static struct smc91x_platdata smc91x_info = {
@@ -99,7 +99,7 @@ static struct platform_device smc91x_device = {
 };
 #endif
 
-#if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_MAC)
 #include <linux/bfin_mac.h>
 static const unsigned short bfin_mac_peripherals[] = P_RMII0;
 
@@ -132,7 +132,7 @@ static struct platform_device bfin_mac_device = {
 };
 #endif
 
-#if defined(CONFIG_USB_NET2272) || defined(CONFIG_USB_NET2272_MODULE)
+#if IS_ENABLED(CONFIG_USB_NET2272)
 static struct resource net2272_bfin_resources[] = {
         {
                 .start = 0x20300000,
@@ -153,11 +153,10 @@ static struct platform_device net2272_bfin_device = {
 };
 #endif
 
-#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
+#if IS_ENABLED(CONFIG_SPI_BFIN5XX)
 /* all SPI peripherals info goes here */
 
-#if defined(CONFIG_MTD_M25P80) \
-        || defined(CONFIG_MTD_M25P80_MODULE)
+#if IS_ENABLED(CONFIG_MTD_M25P80)
 static struct mtd_partition bfin_spi_flash_partitions[] = {
         {
                 .name = "bootloader(spi)",
@@ -188,13 +187,13 @@ static struct bfin5xx_spi_chip spi_flash_chip_info = {
 };
 #endif
 
-#if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
+#if IS_ENABLED(CONFIG_MMC_SPI)
 static struct bfin5xx_spi_chip mmc_spi_chip_info = {
         .enable_dma = 0,
 };
 #endif
 
-#if defined(CONFIG_TOUCHSCREEN_AD7877) || defined(CONFIG_TOUCHSCREEN_AD7877_MODULE)
+#if IS_ENABLED(CONFIG_TOUCHSCREEN_AD7877)
 static const struct ad7877_platform_data bfin_ad7877_ts_info = {
         .model                  = 7877,
         .vref_delay_usecs       = 50,   /* internal, no capacitor */
@@ -211,8 +210,7 @@ static const struct ad7877_platform_data bfin_ad7877_ts_info = {
 #endif
 
 static struct spi_board_info bfin_spi_board_info[] __initdata = {
-#if defined(CONFIG_MTD_M25P80) \
-        || defined(CONFIG_MTD_M25P80_MODULE)
+#if IS_ENABLED(CONFIG_MTD_M25P80)
         {
                 /* the modalias must be the same as spi device driver name */
                 .modalias = "m25p80", /* Name of spi_driver for this device */
@@ -225,8 +223,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
         },
 #endif
 
-#if defined(CONFIG_SND_BF5XX_SOC_AD183X) \
-        || defined(CONFIG_SND_BF5XX_SOC_AD183X_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_SOC_AD183X)
         {
                 .modalias = "ad183x",
                 .max_speed_hz = 3125000,     /* max spi clock (SCK) speed in HZ */
@@ -234,7 +231,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .chip_select = 4,
         },
 #endif
-#if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
+#if IS_ENABLED(CONFIG_MMC_SPI)
         {
                 .modalias = "mmc_spi",
                 .max_speed_hz = 25000000,     /* max spi clock (SCK) speed in HZ */
@@ -244,7 +241,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .mode = SPI_MODE_3,
         },
 #endif
-#if defined(CONFIG_TOUCHSCREEN_AD7877) || defined(CONFIG_TOUCHSCREEN_AD7877_MODULE)
+#if IS_ENABLED(CONFIG_TOUCHSCREEN_AD7877)
 {
         .modalias               = "ad7877",
         .platform_data          = &bfin_ad7877_ts_info,
@@ -294,13 +291,13 @@ static struct platform_device bfin_spi0_device = {
 };
 #endif  /* spi master and devices */
 
-#if defined(CONFIG_FB_BF537_LQ035) || defined(CONFIG_FB_BF537_LQ035_MODULE)
+#if IS_ENABLED(CONFIG_FB_BF537_LQ035)
 static struct platform_device bfin_fb_device = {
         .name = "bf537-lq035",
 };
 #endif
 
-#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN)
 #ifdef CONFIG_SERIAL_BFIN_UART0
 static struct resource bfin_uart0_resources[] = {
         {
@@ -399,7 +396,7 @@ static struct platform_device bfin_uart1_device = {
 #endif
 #endif
 
-#if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_SIR)
 #ifdef CONFIG_BFIN_SIR0
 static struct resource bfin_sir0_resources[] = {
         {
@@ -455,36 +452,36 @@ static struct platform_device bfin_sir1_device = {
 #endif
 
 static struct platform_device *stamp_devices[] __initdata = {
-#if defined(CONFIG_BFIN_CFPCMCIA) || defined(CONFIG_BFIN_CFPCMCIA_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_CFPCMCIA)
         &bfin_pcmcia_cf_device,
 #endif
 
-#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_RTC_DRV_BFIN)
         &rtc_device,
 #endif
 
-#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
+#if IS_ENABLED(CONFIG_SMC91X)
         &smc91x_device,
 #endif
 
-#if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_MAC)
         &bfin_mii_bus,
         &bfin_mac_device,
 #endif
 
-#if defined(CONFIG_USB_NET2272) || defined(CONFIG_USB_NET2272_MODULE)
+#if IS_ENABLED(CONFIG_USB_NET2272)
         &net2272_bfin_device,
 #endif
 
-#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
+#if IS_ENABLED(CONFIG_SPI_BFIN5XX)
         &bfin_spi0_device,
 #endif
 
-#if defined(CONFIG_FB_BF537_LQ035) || defined(CONFIG_FB_BF537_LQ035_MODULE)
+#if IS_ENABLED(CONFIG_FB_BF537_LQ035)
         &bfin_fb_device,
 #endif
 
-#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN)
 #ifdef CONFIG_SERIAL_BFIN_UART0
         &bfin_uart0_device,
 #endif
@@ -493,7 +490,7 @@ static struct platform_device *stamp_devices[] __initdata = {
 #endif
 #endif
 
-#if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_SIR)
 #ifdef CONFIG_BFIN_SIR0
         &bfin_sir0_device,
 #endif
@@ -507,7 +504,7 @@ static int __init pnav_init(void)
 {
         printk(KERN_INFO "%s(): registering device resources\n", __func__);
         platform_add_devices(stamp_devices, ARRAY_SIZE(stamp_devices));
-#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
+#if IS_ENABLED(CONFIG_SPI_BFIN5XX)
         spi_register_board_info(bfin_spi_board_info,
                                 ARRAY_SIZE(bfin_spi_board_info));
 #endif
diff --git a/arch/blackfin/mach-bf537/boards/stamp.c b/arch/blackfin/mach-bf537/boards/stamp.c
index 44fd1d4682ac..de19b8a56007 100644
--- a/arch/blackfin/mach-bf537/boards/stamp.c
+++ b/arch/blackfin/mach-bf537/boards/stamp.c
@@ -18,7 +18,7 @@
 #include <linux/mtd/physmap.h>
 #include <linux/spi/spi.h>
 #include <linux/spi/flash.h>
-#if defined(CONFIG_USB_ISP1362_HCD) || defined(CONFIG_USB_ISP1362_HCD_MODULE)
+#if IS_ENABLED(CONFIG_USB_ISP1362_HCD)
 #include <linux/usb/isp1362.h>
 #endif
 #include <linux/i2c.h>
@@ -53,7 +53,7 @@ const char bfin_board_name[] = "ADI BF537-STAMP";
  *  Driver needs to know address, irq and flag pin.
  */
 
-#if defined(CONFIG_USB_ISP1760_HCD) || defined(CONFIG_USB_ISP1760_HCD_MODULE)
+#if IS_ENABLED(CONFIG_USB_ISP1760_HCD)
 #include <linux/usb/isp1760.h>
 static struct resource bfin_isp1760_resources[] = {
         [0] = {
@@ -88,7 +88,7 @@ static struct platform_device bfin_isp1760_device = {
 };
 #endif
 
-#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
+#if IS_ENABLED(CONFIG_KEYBOARD_GPIO)
 #include <linux/gpio_keys.h>
 
 static struct gpio_keys_button bfin_gpio_keys_table[] = {
@@ -111,7 +111,7 @@ static struct platform_device bfin_device_gpiokeys = {
 };
 #endif
 
-#if defined(CONFIG_BFIN_CFPCMCIA) || defined(CONFIG_BFIN_CFPCMCIA_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_CFPCMCIA)
 static struct resource bfin_pcmcia_cf_resources[] = {
         {
                 .start = 0x20310000, /* IO PORT */
@@ -140,14 +140,14 @@ static struct platform_device bfin_pcmcia_cf_device = {
 };
 #endif
 
-#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_RTC_DRV_BFIN)
 static struct platform_device rtc_device = {
         .name = "rtc-bfin",
         .id   = -1,
 };
 #endif
 
-#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
+#if IS_ENABLED(CONFIG_SMC91X)
 #include <linux/smc91x.h>
 
 static struct smc91x_platdata smc91x_info = {
@@ -180,7 +180,7 @@ static struct platform_device smc91x_device = {
 };
 #endif
 
-#if defined(CONFIG_DM9000) || defined(CONFIG_DM9000_MODULE)
+#if IS_ENABLED(CONFIG_DM9000)
 static struct resource dm9000_resources[] = {
         [0] = {
                 .start  = 0x203FB800,
@@ -207,7 +207,7 @@ static struct platform_device dm9000_device = {
 };
 #endif
 
-#if defined(CONFIG_USB_SL811_HCD) || defined(CONFIG_USB_SL811_HCD_MODULE)
+#if IS_ENABLED(CONFIG_USB_SL811_HCD)
 static struct resource sl811_hcd_resources[] = {
         {
                 .start = 0x20340000,
@@ -251,7 +251,7 @@ static struct platform_device sl811_hcd_device = {
 };
 #endif
 
-#if defined(CONFIG_USB_ISP1362_HCD) || defined(CONFIG_USB_ISP1362_HCD_MODULE)
+#if IS_ENABLED(CONFIG_USB_ISP1362_HCD)
 static struct resource isp1362_hcd_resources[] = {
         {
                 .start = 0x20360000,
@@ -290,7 +290,7 @@ static struct platform_device isp1362_hcd_device = {
 };
 #endif
 
-#if defined(CONFIG_CAN_BFIN) || defined(CONFIG_CAN_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_CAN_BFIN)
 static unsigned short bfin_can_peripherals[] = {
         P_CAN0_RX, P_CAN0_TX, 0
 };
@@ -328,7 +328,7 @@ static struct platform_device bfin_can_device = {
 };
 #endif
 
-#if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_MAC)
 #include <linux/bfin_mac.h>
 static const unsigned short bfin_mac_peripherals[] = P_MII0;
 
@@ -361,7 +361,7 @@ static struct platform_device bfin_mac_device = {
 };
 #endif
 
-#if defined(CONFIG_USB_NET2272) || defined(CONFIG_USB_NET2272_MODULE)
+#if IS_ENABLED(CONFIG_USB_NET2272)
 static struct resource net2272_bfin_resources[] = {
         {
                 .start = 0x20300000,
@@ -385,7 +385,7 @@ static struct platform_device net2272_bfin_device = {
 };
 #endif
 
-#if defined(CONFIG_MTD_NAND_PLATFORM) || defined(CONFIG_MTD_NAND_PLATFORM_MODULE)
+#if IS_ENABLED(CONFIG_MTD_NAND_PLATFORM)
 const char *part_probes[] = { "cmdlinepart", "RedBoot", NULL };
 
 static struct mtd_partition bfin_plat_nand_partitions[] = {
@@ -461,7 +461,7 @@ static void bfin_plat_nand_init(void)
 static void bfin_plat_nand_init(void) {}
 #endif
 
-#if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
+#if IS_ENABLED(CONFIG_MTD_PHYSMAP)
 static struct mtd_partition stamp_partitions[] = {
         {
                 .name       = "bootloader(nor)",
@@ -509,8 +509,7 @@ static struct platform_device stamp_flash_device = {
 };
 #endif
 
-#if defined(CONFIG_MTD_M25P80) \
-        || defined(CONFIG_MTD_M25P80_MODULE)
+#if IS_ENABLED(CONFIG_MTD_M25P80)
 static struct mtd_partition bfin_spi_flash_partitions[] = {
         {
                 .name = "bootloader(spi)",
@@ -541,7 +540,7 @@ static struct bfin5xx_spi_chip spi_flash_chip_info = {
 };
 #endif
 
-#if defined(CONFIG_INPUT_AD714X_SPI) || defined(CONFIG_INPUT_AD714X_SPI_MODULE)
+#if IS_ENABLED(CONFIG_INPUT_AD714X_SPI)
 #include <linux/input/ad714x.h>
 
 static struct ad714x_slider_plat ad7147_spi_slider_plat[] = {
@@ -602,7 +601,7 @@ static struct ad714x_platform_data ad7147_spi_platform_data = {
 };
 #endif
 
-#if defined(CONFIG_INPUT_AD714X_I2C) || defined(CONFIG_INPUT_AD714X_I2C_MODULE)
+#if IS_ENABLED(CONFIG_INPUT_AD714X_I2C)
 #include <linux/input/ad714x.h>
 static struct ad714x_button_plat ad7142_i2c_button_plat[] = {
         {
@@ -649,24 +648,24 @@ static struct ad714x_platform_data ad7142_i2c_platform_data = {
 };
 #endif
 
-#if defined(CONFIG_AD2S90) || defined(CONFIG_AD2S90_MODULE)
+#if IS_ENABLED(CONFIG_AD2S90)
 static struct bfin5xx_spi_chip ad2s90_spi_chip_info = {
         .enable_dma = 0,
 };
 #endif
 
-#if defined(CONFIG_AD2S120X) || defined(CONFIG_AD2S120X_MODULE)
-static unsigned short ad2s120x_platform_data[] = {
+#if IS_ENABLED(CONFIG_AD2S1200)
+static unsigned short ad2s1200_platform_data[] = {
         /* used as SAMPLE and RDVEL */
         GPIO_PF5, GPIO_PF6, 0
 };
 
-static struct bfin5xx_spi_chip ad2s120x_spi_chip_info = {
+static struct bfin5xx_spi_chip ad2s1200_spi_chip_info = {
         .enable_dma = 0,
 };
 #endif
 
-#if defined(CONFIG_AD2S1210) || defined(CONFIG_AD2S1210_MODULE)
+#if IS_ENABLED(CONFIG_AD2S1210)
 static unsigned short ad2s1210_platform_data[] = {
         /* use as SAMPLE, A0, A1 */
         GPIO_PF7, GPIO_PF8, GPIO_PF9,
@@ -682,13 +681,13 @@ static struct bfin5xx_spi_chip ad2s1210_spi_chip_info = {
 };
 #endif
 
-#if defined(CONFIG_AD7314) || defined(CONFIG_AD7314_MODULE)
+#if IS_ENABLED(CONFIG_SENSORS_AD7314)
 static struct bfin5xx_spi_chip ad7314_spi_chip_info = {
         .enable_dma = 0,
 };
 #endif
 
-#if defined(CONFIG_AD7816) || defined(CONFIG_AD7816_MODULE)
+#if IS_ENABLED(CONFIG_AD7816)
 static unsigned short ad7816_platform_data[] = {
         GPIO_PF4, /* rdwr_pin */
         GPIO_PF5, /* convert_pin */
@@ -701,7 +700,7 @@ static struct bfin5xx_spi_chip ad7816_spi_chip_info = {
 };
 #endif
 
-#if defined(CONFIG_ADT7310) || defined(CONFIG_ADT7310_MODULE)
+#if IS_ENABLED(CONFIG_ADT7310)
 static unsigned long adt7310_platform_data[3] = {
 /* INT bound temperature alarm event. line 1 */
         IRQ_PG4, IRQF_TRIGGER_LOW,
@@ -714,14 +713,14 @@ static struct bfin5xx_spi_chip adt7310_spi_chip_info = {
 };
 #endif
 
-#if defined(CONFIG_AD7298) || defined(CONFIG_AD7298_MODULE)
+#if IS_ENABLED(CONFIG_AD7298)
 static unsigned short ad7298_platform_data[] = {
         GPIO_PF7, /* busy_pin */
         0,
 };
 #endif
 
-#if defined(CONFIG_ADT7316_SPI) || defined(CONFIG_ADT7316_SPI_MODULE)
+#if IS_ENABLED(CONFIG_ADT7316_SPI)
 static unsigned long adt7316_spi_data[2] = {
         IRQF_TRIGGER_LOW, /* interrupt flags */
         GPIO_PF7, /* ldac_pin, 0 means DAC/LDAC registers control DAC update */
@@ -732,7 +731,7 @@ static struct bfin5xx_spi_chip adt7316_spi_chip_info = {
 };
 #endif
 
-#if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
+#if IS_ENABLED(CONFIG_MMC_SPI)
 #define MMC_SPI_CARD_DETECT_INT IRQ_PF5
 
 static int bfin_mmc_spi_init(struct device *dev,
@@ -759,7 +758,7 @@ static struct bfin5xx_spi_chip  mmc_spi_chip_info = {
 };
 #endif
 
-#if defined(CONFIG_TOUCHSCREEN_AD7877) || defined(CONFIG_TOUCHSCREEN_AD7877_MODULE)
+#if IS_ENABLED(CONFIG_TOUCHSCREEN_AD7877)
 #include <linux/spi/ad7877.h>
 static const struct ad7877_platform_data bfin_ad7877_ts_info = {
         .model                  = 7877,
@@ -776,7 +775,7 @@ static const struct ad7877_platform_data bfin_ad7877_ts_info = {
 };
 #endif
 
-#if defined(CONFIG_TOUCHSCREEN_AD7879) || defined(CONFIG_TOUCHSCREEN_AD7879_MODULE)
+#if IS_ENABLED(CONFIG_TOUCHSCREEN_AD7879)
 #include <linux/spi/ad7879.h>
 static const struct ad7879_platform_data bfin_ad7879_ts_info = {
         .model                  = 7879, /* Model = AD7879 */
@@ -793,7 +792,7 @@ static const struct ad7879_platform_data bfin_ad7879_ts_info = {
 };
 #endif
 
-#if defined(CONFIG_INPUT_ADXL34X) || defined(CONFIG_INPUT_ADXL34X_MODULE)
+#if IS_ENABLED(CONFIG_INPUT_ADXL34X)
 #include <linux/input/adxl34x.h>
 static const struct adxl34x_platform_data adxl34x_info = {
         .x_axis_offset = 0,
@@ -832,13 +831,13 @@ static const struct adxl34x_platform_data adxl34x_info = {
 };
 #endif
 
-#if defined(CONFIG_ENC28J60) || defined(CONFIG_ENC28J60_MODULE)
+#if IS_ENABLED(CONFIG_ENC28J60)
 static struct bfin5xx_spi_chip enc28j60_spi_chip_info = {
         .enable_dma     = 1,
 };
 #endif
 
-#if defined(CONFIG_ADF702X) || defined(CONFIG_ADF702X_MODULE)
+#if IS_ENABLED(CONFIG_ADF702X)
 #include <linux/spi/adf702x.h>
 #define TXREG 0x0160A470
 static const u32 adf7021_regs[] = {
@@ -880,7 +879,7 @@ static inline void adf702x_mac_init(void)
 static inline void adf702x_mac_init(void) {}
 #endif
 
-#if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
+#if IS_ENABLED(CONFIG_TOUCHSCREEN_ADS7846)
 #include <linux/spi/ads7846.h>
 static int ads7873_get_pendown_state(void)
 {
@@ -899,8 +898,7 @@ static struct ads7846_platform_data __initdata ad7873_pdata = {
 };
 #endif
 
-#if defined(CONFIG_MTD_DATAFLASH) \
-        || defined(CONFIG_MTD_DATAFLASH_MODULE)
+#if IS_ENABLED(CONFIG_MTD_DATAFLASH)
 
 static struct mtd_partition bfin_spi_dataflash_partitions[] = {
         {
@@ -931,15 +929,14 @@ static struct bfin5xx_spi_chip data_flash_chip_info = {
 };
 #endif
 
-#if defined(CONFIG_AD7476) || defined(CONFIG_AD7476_MODULE)
+#if IS_ENABLED(CONFIG_AD7476)
 static struct bfin5xx_spi_chip spi_ad7476_chip_info = {
         .enable_dma = 0,         /* use dma transfer with this chip*/
 };
 #endif
 
 static struct spi_board_info bfin_spi_board_info[] __initdata = {
-#if defined(CONFIG_MTD_M25P80) \
-        || defined(CONFIG_MTD_M25P80_MODULE)
+#if IS_ENABLED(CONFIG_MTD_M25P80)
         {
                 /* the modalias must be the same as spi device driver name */
                 .modalias = "m25p80", /* Name of spi_driver for this device */
@@ -951,8 +948,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .mode = SPI_MODE_3,
         },
 #endif
-#if defined(CONFIG_MTD_DATAFLASH) \
-        || defined(CONFIG_MTD_DATAFLASH_MODULE)
+#if IS_ENABLED(CONFIG_MTD_DATAFLASH)
         {       /* DataFlash chip */
                 .modalias = "mtd_dataflash",
                 .max_speed_hz = 33250000,     /* max spi clock (SCK) speed in HZ */
@@ -964,8 +960,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
         },
 #endif
 
-#if defined(CONFIG_SND_BF5XX_SOC_AD1836) \
-        || defined(CONFIG_SND_BF5XX_SOC_AD1836_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_SOC_AD1836)
         {
                 .modalias = "ad1836",
                 .max_speed_hz = 3125000,     /* max spi clock (SCK) speed in HZ */
@@ -986,7 +981,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
         },
 #endif
 
-#if defined(CONFIG_SND_SOC_ADAV80X) || defined(CONFIG_SND_SOC_ADV80X_MODULE)
+#if IS_ENABLED(CONFIG_SND_SOC_ADAV80X)
         {
                 .modalias = "adav801",
                 .max_speed_hz = 3125000,     /* max spi clock (SCK) speed in HZ */
@@ -996,7 +991,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
         },
 #endif
 
-#if defined(CONFIG_INPUT_AD714X_SPI) || defined(CONFIG_INPUT_AD714X_SPI_MODULE)
+#if IS_ENABLED(CONFIG_INPUT_AD714X_SPI)
         {
                 .modalias = "ad714x_captouch",
                 .max_speed_hz = 1000000,     /* max spi clock (SCK) speed in HZ */
@@ -1008,7 +1003,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
         },
 #endif
 
-#if defined(CONFIG_AD2S90) || defined(CONFIG_AD2S90_MODULE)
+#if IS_ENABLED(CONFIG_AD2S90)
         {
                 .modalias = "ad2s90",
                 .bus_num = 0,
@@ -1019,17 +1014,17 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
         },
 #endif
 
-#if defined(CONFIG_AD2S120X) || defined(CONFIG_AD2S120X_MODULE)
+#if IS_ENABLED(CONFIG_AD2S1200)
         {
-                .modalias = "ad2s120x",
+                .modalias = "ad2s1200",
                 .bus_num = 0,
                 .chip_select = 4,            /* CS, change it for your board */
-                .platform_data = ad2s120x_platform_data,
-                .controller_data = &ad2s120x_spi_chip_info,
+                .platform_data = ad2s1200_platform_data,
+                .controller_data = &ad2s1200_spi_chip_info,
         },
 #endif
 
-#if defined(CONFIG_AD2S1210) || defined(CONFIG_AD2S1210_MODULE)
+#if IS_ENABLED(CONFIG_AD2S1210)
         {
                 .modalias = "ad2s1210",
                 .max_speed_hz = 8192000,
@@ -1040,7 +1035,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
         },
 #endif
 
-#if defined(CONFIG_AD7314) || defined(CONFIG_AD7314_MODULE)
+#if IS_ENABLED(CONFIG_SENSORS_AD7314)
         {
                 .modalias = "ad7314",
                 .max_speed_hz = 1000000,
@@ -1051,7 +1046,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
         },
 #endif
 
-#if defined(CONFIG_AD7816) || defined(CONFIG_AD7816_MODULE)
+#if IS_ENABLED(CONFIG_AD7816)
         {
                 .modalias = "ad7818",
                 .max_speed_hz = 1000000,
@@ -1063,7 +1058,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
         },
 #endif
 
-#if defined(CONFIG_ADT7310) || defined(CONFIG_ADT7310_MODULE)
+#if IS_ENABLED(CONFIG_ADT7310)
         {
                 .modalias = "adt7310",
                 .max_speed_hz = 1000000,
@@ -1076,7 +1071,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
         },
 #endif
 
-#if defined(CONFIG_AD7298) || defined(CONFIG_AD7298_MODULE)
+#if IS_ENABLED(CONFIG_AD7298)
         {
                 .modalias = "ad7298",
                 .max_speed_hz = 1000000,
@@ -1087,7 +1082,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
         },
 #endif
 
-#if defined(CONFIG_ADT7316_SPI) || defined(CONFIG_ADT7316_SPI_MODULE)
+#if IS_ENABLED(CONFIG_ADT7316_SPI)
         {
                 .modalias = "adt7316",
                 .max_speed_hz = 1000000,
@@ -1100,7 +1095,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
         },
 #endif
 
-#if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
+#if IS_ENABLED(CONFIG_MMC_SPI)
         {
                 .modalias = "mmc_spi",
                 .max_speed_hz = 20000000,     /* max spi clock (SCK) speed in HZ */
@@ -1111,7 +1106,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .mode = SPI_MODE_3,
         },
 #endif
-#if defined(CONFIG_TOUCHSCREEN_AD7877) || defined(CONFIG_TOUCHSCREEN_AD7877_MODULE)
+#if IS_ENABLED(CONFIG_TOUCHSCREEN_AD7877)
         {
                 .modalias               = "ad7877",
                 .platform_data          = &bfin_ad7877_ts_info,
@@ -1121,7 +1116,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .chip_select  = 1,
         },
 #endif
-#if defined(CONFIG_TOUCHSCREEN_AD7879_SPI) || defined(CONFIG_TOUCHSCREEN_AD7879_SPI_MODULE)
+#if IS_ENABLED(CONFIG_TOUCHSCREEN_AD7879_SPI)
         {
                 .modalias = "ad7879",
                 .platform_data = &bfin_ad7879_ts_info,
@@ -1132,7 +1127,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .mode = SPI_CPHA | SPI_CPOL,
         },
 #endif
-#if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
+#if IS_ENABLED(CONFIG_SPI_SPIDEV)
         {
                 .modalias = "spidev",
                 .max_speed_hz = 3125000,     /* max spi clock (SCK) speed in HZ */
@@ -1140,7 +1135,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .chip_select = 1,
         },
 #endif
-#if defined(CONFIG_FB_BFIN_LQ035Q1) || defined(CONFIG_FB_BFIN_LQ035Q1_MODULE)
+#if IS_ENABLED(CONFIG_FB_BFIN_LQ035Q1)
         {
                 .modalias = "bfin-lq035q1-spi",
                 .max_speed_hz = 20000000,     /* max spi clock (SCK) speed in HZ */
@@ -1149,7 +1144,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .mode = SPI_CPHA | SPI_CPOL,
         },
 #endif
-#if defined(CONFIG_ENC28J60) || defined(CONFIG_ENC28J60_MODULE)
+#if IS_ENABLED(CONFIG_ENC28J60)
         {
                 .modalias = "enc28j60",
                 .max_speed_hz = 20000000,     /* max spi clock (SCK) speed in HZ */
@@ -1160,7 +1155,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .mode = SPI_MODE_0,
         },
 #endif
-#if defined(CONFIG_INPUT_ADXL34X_SPI) || defined(CONFIG_INPUT_ADXL34X_SPI_MODULE)
+#if IS_ENABLED(CONFIG_INPUT_ADXL34X_SPI)
         {
                 .modalias       = "adxl34x",
                 .platform_data  = &adxl34x_info,
@@ -1171,7 +1166,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .mode = SPI_MODE_3,
         },
 #endif
-#if defined(CONFIG_ADF702X) || defined(CONFIG_ADF702X_MODULE)
+#if IS_ENABLED(CONFIG_ADF702X)
         {
                 .modalias = "adf702x",
                 .max_speed_hz = 16000000,     /* max spi clock (SCK) speed in HZ */
@@ -1181,7 +1176,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .mode = SPI_MODE_0,
         },
 #endif
-#if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
+#if IS_ENABLED(CONFIG_TOUCHSCREEN_ADS7846)
         {
                 .modalias = "ads7846",
                 .max_speed_hz = 2000000,     /* max spi clock (SCK) speed in HZ */
@@ -1192,8 +1187,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .mode = SPI_MODE_0,
         },
 #endif
-#if defined(CONFIG_AD7476) \
-        || defined(CONFIG_AD7476_MODULE)
+#if IS_ENABLED(CONFIG_AD7476)
         {
                 .modalias = "ad7476", /* Name of spi_driver for this device */
                 .max_speed_hz = 6250000,     /* max spi clock (SCK) speed in HZ */
@@ -1204,8 +1198,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .mode = SPI_MODE_3,
         },
 #endif
-#if defined(CONFIG_ADE7753) \
-        || defined(CONFIG_ADE7753_MODULE)
+#if IS_ENABLED(CONFIG_ADE7753)
         {
                 .modalias = "ade7753",
                 .max_speed_hz = 1000000,     /* max spi clock (SCK) speed in HZ */
@@ -1215,8 +1208,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .mode = SPI_MODE_1,
         },
 #endif
-#if defined(CONFIG_ADE7754) \
-        || defined(CONFIG_ADE7754_MODULE)
+#if IS_ENABLED(CONFIG_ADE7754)
         {
                 .modalias = "ade7754",
                 .max_speed_hz = 1000000,     /* max spi clock (SCK) speed in HZ */
@@ -1226,8 +1218,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .mode = SPI_MODE_1,
         },
 #endif
-#if defined(CONFIG_ADE7758) \
-        || defined(CONFIG_ADE7758_MODULE)
+#if IS_ENABLED(CONFIG_ADE7758)
         {
                 .modalias = "ade7758",
                 .max_speed_hz = 1000000,     /* max spi clock (SCK) speed in HZ */
@@ -1237,8 +1228,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .mode = SPI_MODE_1,
         },
 #endif
-#if defined(CONFIG_ADE7759) \
-        || defined(CONFIG_ADE7759_MODULE)
+#if IS_ENABLED(CONFIG_ADE7759)
         {
                 .modalias = "ade7759",
                 .max_speed_hz = 1000000,     /* max spi clock (SCK) speed in HZ */
@@ -1248,8 +1238,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .mode = SPI_MODE_1,
         },
 #endif
-#if defined(CONFIG_ADE7854_SPI) \
-        || defined(CONFIG_ADE7854_SPI_MODULE)
+#if IS_ENABLED(CONFIG_ADE7854_SPI)
         {
                 .modalias = "ade7854",
                 .max_speed_hz = 1000000,     /* max spi clock (SCK) speed in HZ */
@@ -1259,8 +1248,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .mode = SPI_MODE_3,
         },
 #endif
-#if defined(CONFIG_ADIS16060) \
-        || defined(CONFIG_ADIS16060_MODULE)
+#if IS_ENABLED(CONFIG_ADIS16060)
         {
                 .modalias = "adis16060_r",
                 .max_speed_hz = 2900000,     /* max spi clock (SCK) speed in HZ */
@@ -1278,8 +1266,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .mode = SPI_MODE_1,
         },
 #endif
-#if defined(CONFIG_ADIS16130) \
-        || defined(CONFIG_ADIS16130_MODULE)
+#if IS_ENABLED(CONFIG_ADIS16130)
         {
                 .modalias = "adis16130",
                 .max_speed_hz = 1000000,     /* max spi clock (SCK) speed in HZ */
@@ -1289,8 +1276,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .mode = SPI_MODE_3,
         },
 #endif
-#if defined(CONFIG_ADIS16201) \
-        || defined(CONFIG_ADIS16201_MODULE)
+#if IS_ENABLED(CONFIG_ADIS16201)
         {
                 .modalias = "adis16201",
                 .max_speed_hz = 1000000,     /* max spi clock (SCK) speed in HZ */
@@ -1301,8 +1287,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .irq = IRQ_PF4,
         },
 #endif
-#if defined(CONFIG_ADIS16203) \
-        || defined(CONFIG_ADIS16203_MODULE)
+#if IS_ENABLED(CONFIG_ADIS16203)
         {
                 .modalias = "adis16203",
                 .max_speed_hz = 1000000,     /* max spi clock (SCK) speed in HZ */
@@ -1313,8 +1298,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .irq = IRQ_PF4,
         },
 #endif
-#if defined(CONFIG_ADIS16204) \
-        || defined(CONFIG_ADIS16204_MODULE)
+#if IS_ENABLED(CONFIG_ADIS16204)
         {
                 .modalias = "adis16204",
                 .max_speed_hz = 1000000,     /* max spi clock (SCK) speed in HZ */
@@ -1325,8 +1309,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .irq = IRQ_PF4,
         },
 #endif
-#if defined(CONFIG_ADIS16209) \
-        || defined(CONFIG_ADIS16209_MODULE)
+#if IS_ENABLED(CONFIG_ADIS16209)
         {
                 .modalias = "adis16209",
                 .max_speed_hz = 1000000,     /* max spi clock (SCK) speed in HZ */
@@ -1337,8 +1320,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .irq = IRQ_PF4,
         },
 #endif
-#if defined(CONFIG_ADIS16220) \
-        || defined(CONFIG_ADIS16220_MODULE)
+#if IS_ENABLED(CONFIG_ADIS16220)
         {
                 .modalias = "adis16220",
                 .max_speed_hz = 2000000,     /* max spi clock (SCK) speed in HZ */
@@ -1349,8 +1331,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .irq = IRQ_PF4,
         },
 #endif
-#if defined(CONFIG_ADIS16240) \
-        || defined(CONFIG_ADIS16240_MODULE)
+#if IS_ENABLED(CONFIG_ADIS16240)
         {
                 .modalias = "adis16240",
                 .max_speed_hz = 1500000,     /* max spi clock (SCK) speed in HZ */
@@ -1361,8 +1342,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .irq = IRQ_PF4,
         },
 #endif
-#if defined(CONFIG_ADIS16260) \
-        || defined(CONFIG_ADIS16260_MODULE)
+#if IS_ENABLED(CONFIG_ADIS16260)
         {
                 .modalias = "adis16260",
                 .max_speed_hz = 1500000,     /* max spi clock (SCK) speed in HZ */
@@ -1373,8 +1353,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .irq = IRQ_PF4,
         },
 #endif
-#if defined(CONFIG_ADIS16261) \
-        || defined(CONFIG_ADIS16261_MODULE)
+#if IS_ENABLED(CONFIG_ADIS16261)
         {
                 .modalias = "adis16261",
                 .max_speed_hz = 2500000,     /* max spi clock (SCK) speed in HZ */
@@ -1384,8 +1363,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .mode = SPI_MODE_3,
         },
 #endif
-#if defined(CONFIG_ADIS16300) \
-        || defined(CONFIG_ADIS16300_MODULE)
+#if IS_ENABLED(CONFIG_ADIS16300)
         {
                 .modalias = "adis16300",
                 .max_speed_hz = 1000000,     /* max spi clock (SCK) speed in HZ */
@@ -1396,8 +1374,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .irq = IRQ_PF4,
         },
 #endif
-#if defined(CONFIG_ADIS16350) \
-        || defined(CONFIG_ADIS16350_MODULE)
+#if IS_ENABLED(CONFIG_ADIS16350)
         {
                 .modalias = "adis16364",
                 .max_speed_hz = 1000000,     /* max spi clock (SCK) speed in HZ */
@@ -1408,8 +1385,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .irq = IRQ_PF4,
         },
 #endif
-#if defined(CONFIG_ADIS16400) \
-        || defined(CONFIG_ADIS16400_MODULE)
+#if IS_ENABLED(CONFIG_ADIS16400)
         {
                 .modalias = "adis16400",
                 .max_speed_hz = 1000000,     /* max spi clock (SCK) speed in HZ */
@@ -1421,7 +1397,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
 #endif
 };
 
-#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
+#if IS_ENABLED(CONFIG_SPI_BFIN5XX)
 /* SPI controller data */
 static struct bfin5xx_spi_master bfin_spi0_info = {
         .num_chipselect = MAX_CTRL_CS + MAX_BLACKFIN_GPIOS,
@@ -1459,7 +1435,7 @@ static struct platform_device bfin_spi0_device = {
 };
 #endif  /* spi master and devices */
 
-#if defined(CONFIG_SPI_BFIN_SPORT) || defined(CONFIG_SPI_BFIN_SPORT_MODULE)
+#if IS_ENABLED(CONFIG_SPI_BFIN_SPORT)
 
 /* SPORT SPI controller data */
 static struct bfin5xx_spi_master bfin_sport_spi0_info = {
@@ -1524,13 +1500,13 @@ static struct platform_device bfin_sport_spi1_device = {
 
 #endif  /* sport spi master and devices */
 
-#if defined(CONFIG_FB_BF537_LQ035) || defined(CONFIG_FB_BF537_LQ035_MODULE)
+#if IS_ENABLED(CONFIG_FB_BF537_LQ035)
 static struct platform_device bfin_fb_device = {
         .name = "bf537_lq035",
 };
 #endif
 
-#if defined(CONFIG_FB_BFIN_LQ035Q1) || defined(CONFIG_FB_BFIN_LQ035Q1_MODULE)
+#if IS_ENABLED(CONFIG_FB_BFIN_LQ035Q1)
 #include <asm/bfin-lq035q1.h>
 
 static struct bfin_lq035q1fb_disp_info bfin_lq035q1_data = {
@@ -1559,8 +1535,7 @@ static struct platform_device bfin_lq035q1_device = {
 };
 #endif
 
-#if defined(CONFIG_VIDEO_BLACKFIN_CAPTURE) \
-        || defined(CONFIG_VIDEO_BLACKFIN_CAPTURE_MODULE)
+#if IS_ENABLED(CONFIG_VIDEO_BLACKFIN_CAPTURE)
 #include <linux/videodev2.h>
 #include <media/blackfin/bfin_capture.h>
 #include <media/blackfin/ppi.h>
@@ -1580,8 +1555,7 @@ static const struct ppi_info ppi_info = {
         .pin_req = ppi_req,
 };
 
-#if defined(CONFIG_VIDEO_VS6624) \
-        || defined(CONFIG_VIDEO_VS6624_MODULE)
+#if IS_ENABLED(CONFIG_VIDEO_VS6624)
 static struct v4l2_input vs6624_inputs[] = {
         {
                 .index = 0,
@@ -1624,7 +1598,7 @@ static struct platform_device bfin_capture_device = {
 };
 #endif
 
-#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN)
 #ifdef CONFIG_SERIAL_BFIN_UART0
 static struct resource bfin_uart0_resources[] = {
         {
@@ -1735,7 +1709,7 @@ static struct platform_device bfin_uart1_device = {
 #endif
 #endif
 
-#if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_SIR)
 #ifdef CONFIG_BFIN_SIR0
 static struct resource bfin_sir0_resources[] = {
         {
@@ -1790,7 +1764,7 @@ static struct platform_device bfin_sir1_device = {
 #endif
 #endif
 
-#if defined(CONFIG_I2C_BLACKFIN_TWI) || defined(CONFIG_I2C_BLACKFIN_TWI_MODULE)
+#if IS_ENABLED(CONFIG_I2C_BLACKFIN_TWI)
 static const u16 bfin_twi0_pins[] = {P_TWI0_SCL, P_TWI0_SDA, 0};
 
 static struct resource bfin_twi0_resource[] = {
@@ -1817,7 +1791,7 @@ static struct platform_device i2c_bfin_twi_device = {
 };
 #endif
 
-#if defined(CONFIG_KEYBOARD_ADP5588) || defined(CONFIG_KEYBOARD_ADP5588_MODULE)
+#if IS_ENABLED(CONFIG_KEYBOARD_ADP5588)
 static const unsigned short adp5588_keymap[ADP5588_KEYMAPSIZE] = {
         [0]      = KEY_GRAVE,
         [1]      = KEY_1,
@@ -1902,7 +1876,7 @@ static struct adp5588_kpad_platform_data adp5588_kpad_data = {
 };
 #endif
 
-#if defined(CONFIG_PMIC_ADP5520) || defined(CONFIG_PMIC_ADP5520_MODULE)
+#if IS_ENABLED(CONFIG_PMIC_ADP5520)
 #include <linux/mfd/adp5520.h>
 
         /*
@@ -2013,14 +1987,14 @@ static struct adp5520_platform_data adp5520_pdev_data = {
 
 #endif
 
-#if defined(CONFIG_GPIO_ADP5588) || defined(CONFIG_GPIO_ADP5588_MODULE)
+#if IS_ENABLED(CONFIG_GPIO_ADP5588)
 static struct adp5588_gpio_platform_data adp5588_gpio_data = {
         .gpio_start = 50,
         .pullup_dis_mask = 0,
 };
 #endif
 
-#if defined(CONFIG_BACKLIGHT_ADP8870) || defined(CONFIG_BACKLIGHT_ADP8870_MODULE)
+#if IS_ENABLED(CONFIG_BACKLIGHT_ADP8870)
 #include <linux/i2c/adp8870.h>
 static struct led_info adp8870_leds[] = {
         {
@@ -2072,7 +2046,7 @@ static struct adp8870_backlight_platform_data adp8870_pdata = {
 };
 #endif
 
-#if defined(CONFIG_BACKLIGHT_ADP8860) || defined(CONFIG_BACKLIGHT_ADP8860_MODULE)
+#if IS_ENABLED(CONFIG_BACKLIGHT_ADP8860)
 #include <linux/i2c/adp8860.h>
 static struct led_info adp8860_leds[] = {
         {
@@ -2114,7 +2088,7 @@ static struct adp8860_backlight_platform_data adp8860_pdata = {
 };
 #endif
 
-#if defined(CONFIG_REGULATOR_AD5398) || defined(CONFIG_REGULATOR_AD5398_MODULE)
+#if IS_ENABLED(CONFIG_REGULATOR_AD5398)
 static struct regulator_consumer_supply ad5398_consumer = {
         .supply = "current",
 };
@@ -2129,8 +2103,7 @@ static struct regulator_init_data ad5398_regulator_data = {
         .consumer_supplies     = &ad5398_consumer,
 };
 
-#if defined(CONFIG_REGULATOR_VIRTUAL_CONSUMER) || \
-        defined(CONFIG_REGULATOR_VIRTUAL_CONSUMER_MODULE)
+#if IS_ENABLED(CONFIG_REGULATOR_VIRTUAL_CONSUMER)
 static struct platform_device ad5398_virt_consumer_device = {
         .name = "reg-virt-consumer",
         .id = 0,
@@ -2139,8 +2112,7 @@ static struct platform_device ad5398_virt_consumer_device = {
         },
 };
 #endif
-#if defined(CONFIG_REGULATOR_USERSPACE_CONSUMER) || \
-        defined(CONFIG_REGULATOR_USERSPACE_CONSUMER_MODULE)
+#if IS_ENABLED(CONFIG_REGULATOR_USERSPACE_CONSUMER)
 static struct regulator_bulk_data ad5398_bulk_data = {
         .supply = "current",
 };
@@ -2161,14 +2133,14 @@ static struct platform_device ad5398_userspace_consumer_device = {
 #endif
 #endif
 
-#if defined(CONFIG_ADT7410) || defined(CONFIG_ADT7410_MODULE)
+#if IS_ENABLED(CONFIG_ADT7410)
 /* INT bound temperature alarm event. line 1 */
 static unsigned long adt7410_platform_data[2] = {
         IRQ_PG4, IRQF_TRIGGER_LOW,
 };
 #endif
 
-#if defined(CONFIG_ADT7316_I2C) || defined(CONFIG_ADT7316_I2C_MODULE)
+#if IS_ENABLED(CONFIG_ADT7316_I2C)
 /* INT bound temperature alarm event. line 1 */
 static unsigned long adt7316_i2c_data[2] = {
         IRQF_TRIGGER_LOW, /* interrupt flags */
@@ -2183,13 +2155,13 @@ static struct i2c_board_info __initdata bfin_i2c_board_info[] = {
         },
 #endif
 
-#if defined(CONFIG_SND_SOC_ADAV80X) || defined(CONFIG_SND_SOC_ADAV80X_MODULE)
+#if IS_ENABLED(CONFIG_SND_SOC_ADAV80X)
         {
                 I2C_BOARD_INFO("adav803", 0x10),
         },
 #endif
 
-#if defined(CONFIG_INPUT_AD714X_I2C) || defined(CONFIG_INPUT_AD714X_I2C_MODULE)
+#if IS_ENABLED(CONFIG_INPUT_AD714X_I2C)
         {
                 I2C_BOARD_INFO("ad7142_captouch", 0x2C),
                 .irq = IRQ_PG5,
@@ -2197,39 +2169,39 @@ static struct i2c_board_info __initdata bfin_i2c_board_info[] = {
         },
 #endif
 
-#if defined(CONFIG_AD7150) || defined(CONFIG_AD7150_MODULE)
+#if IS_ENABLED(CONFIG_AD7150)
         {
                 I2C_BOARD_INFO("ad7150", 0x48),
                 .irq = IRQ_PG5, /* fixme: use real interrupt number */
         },
 #endif
 
-#if defined(CONFIG_AD7152) || defined(CONFIG_AD7152_MODULE)
+#if IS_ENABLED(CONFIG_AD7152)
         {
                 I2C_BOARD_INFO("ad7152", 0x48),
         },
 #endif
 
-#if defined(CONFIG_AD774X) || defined(CONFIG_AD774X_MODULE)
+#if IS_ENABLED(CONFIG_AD774X)
         {
                 I2C_BOARD_INFO("ad774x", 0x48),
         },
 #endif
 
-#if defined(CONFIG_ADE7854_I2C) || defined(CONFIG_ADE7854_I2C_MODULE)
+#if IS_ENABLED(CONFIG_ADE7854_I2C)
         {
                 I2C_BOARD_INFO("ade7854", 0x38),
         },
 #endif
 
-#if defined(CONFIG_ADT75) || defined(CONFIG_ADT75_MODULE)
+#if IS_ENABLED(CONFIG_SENSORS_LM75)
         {
                 I2C_BOARD_INFO("adt75", 0x9),
                 .irq = IRQ_PG5,
         },
 #endif
 
-#if defined(CONFIG_ADT7410) || defined(CONFIG_ADT7410_MODULE)
+#if IS_ENABLED(CONFIG_ADT7410)
         {
                 I2C_BOARD_INFO("adt7410", 0x48),
                 /* CT critical temperature event. line 0 */
@@ -2238,14 +2210,14 @@ static struct i2c_board_info __initdata bfin_i2c_board_info[] = {
         },
 #endif
 
-#if defined(CONFIG_AD7291) || defined(CONFIG_AD7291_MODULE)
+#if IS_ENABLED(CONFIG_AD7291)
         {
                 I2C_BOARD_INFO("ad7291", 0x20),
                 .irq = IRQ_PG5,
         },
 #endif
 
-#if defined(CONFIG_ADT7316_I2C) || defined(CONFIG_ADT7316_I2C_MODULE)
+#if IS_ENABLED(CONFIG_ADT7316_I2C)
         {
                 I2C_BOARD_INFO("adt7316", 0x48),
                 .irq = IRQ_PG6,
@@ -2253,128 +2225,128 @@ static struct i2c_board_info __initdata bfin_i2c_board_info[] = {
         },
 #endif
 
-#if defined(CONFIG_BFIN_TWI_LCD) || defined(CONFIG_BFIN_TWI_LCD_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_TWI_LCD)
         {
                 I2C_BOARD_INFO("pcf8574_lcd", 0x22),
         },
 #endif
-#if defined(CONFIG_INPUT_PCF8574) || defined(CONFIG_INPUT_PCF8574_MODULE)
+#if IS_ENABLED(CONFIG_INPUT_PCF8574)
         {
                 I2C_BOARD_INFO("pcf8574_keypad", 0x27),
                 .irq = IRQ_PG6,
         },
 #endif
-#if defined(CONFIG_TOUCHSCREEN_AD7879_I2C) || defined(CONFIG_TOUCHSCREEN_AD7879_I2C_MODULE)
+#if IS_ENABLED(CONFIG_TOUCHSCREEN_AD7879_I2C)
         {
                 I2C_BOARD_INFO("ad7879", 0x2F),
                 .irq = IRQ_PG5,
                 .platform_data = (void *)&bfin_ad7879_ts_info,
         },
 #endif
-#if defined(CONFIG_KEYBOARD_ADP5588) || defined(CONFIG_KEYBOARD_ADP5588_MODULE)
+#if IS_ENABLED(CONFIG_KEYBOARD_ADP5588)
         {
                 I2C_BOARD_INFO("adp5588-keys", 0x34),
                 .irq = IRQ_PG0,
                 .platform_data = (void *)&adp5588_kpad_data,
         },
 #endif
-#if defined(CONFIG_PMIC_ADP5520) || defined(CONFIG_PMIC_ADP5520_MODULE)
+#if IS_ENABLED(CONFIG_PMIC_ADP5520)
         {
                 I2C_BOARD_INFO("pmic-adp5520", 0x32),
                 .irq = IRQ_PG0,
                 .platform_data = (void *)&adp5520_pdev_data,
         },
 #endif
-#if defined(CONFIG_INPUT_ADXL34X_I2C) || defined(CONFIG_INPUT_ADXL34X_I2C_MODULE)
+#if IS_ENABLED(CONFIG_INPUT_ADXL34X_I2C)
         {
                 I2C_BOARD_INFO("adxl34x", 0x53),
                 .irq = IRQ_PG3,
                 .platform_data = (void *)&adxl34x_info,
         },
 #endif
-#if defined(CONFIG_GPIO_ADP5588) || defined(CONFIG_GPIO_ADP5588_MODULE)
+#if IS_ENABLED(CONFIG_GPIO_ADP5588)
         {
                 I2C_BOARD_INFO("adp5588-gpio", 0x34),
                 .platform_data = (void *)&adp5588_gpio_data,
         },
 #endif
-#if defined(CONFIG_FB_BFIN_7393) || defined(CONFIG_FB_BFIN_7393_MODULE)
+#if IS_ENABLED(CONFIG_FB_BFIN_7393)
         {
                 I2C_BOARD_INFO("bfin-adv7393", 0x2B),
         },
 #endif
-#if defined(CONFIG_FB_BF537_LQ035) || defined(CONFIG_FB_BF537_LQ035_MODULE)
+#if IS_ENABLED(CONFIG_FB_BF537_LQ035)
         {
                 I2C_BOARD_INFO("bf537-lq035-ad5280", 0x2F),
         },
 #endif
-#if defined(CONFIG_BACKLIGHT_ADP8870) || defined(CONFIG_BACKLIGHT_ADP8870_MODULE)
+#if IS_ENABLED(CONFIG_BACKLIGHT_ADP8870)
         {
                 I2C_BOARD_INFO("adp8870", 0x2B),
                 .platform_data = (void *)&adp8870_pdata,
         },
 #endif
-#if defined(CONFIG_SND_SOC_ADAU1371) || defined(CONFIG_SND_SOC_ADAU1371_MODULE)
+#if IS_ENABLED(CONFIG_SND_SOC_ADAU1371)
         {
                 I2C_BOARD_INFO("adau1371", 0x1A),
         },
 #endif
-#if defined(CONFIG_SND_SOC_ADAU1761) || defined(CONFIG_SND_SOC_ADAU1761_MODULE)
+#if IS_ENABLED(CONFIG_SND_SOC_ADAU1761)
         {
                 I2C_BOARD_INFO("adau1761", 0x38),
         },
 #endif
-#if defined(CONFIG_SND_SOC_ADAU1361) || defined(CONFIG_SND_SOC_ADAU1361_MODULE)
+#if IS_ENABLED(CONFIG_SND_SOC_ADAU1361)
         {
                 I2C_BOARD_INFO("adau1361", 0x38),
         },
 #endif
-#if defined(CONFIG_SND_SOC_ADAU1701) || defined(CONFIG_SND_SOC_ADAU1701_MODULE)
+#if IS_ENABLED(CONFIG_SND_SOC_ADAU1701)
         {
                 I2C_BOARD_INFO("adau1701", 0x34),
         },
 #endif
-#if defined(CONFIG_AD525X_DPOT) || defined(CONFIG_AD525X_DPOT_MODULE)
+#if IS_ENABLED(CONFIG_AD525X_DPOT)
         {
                 I2C_BOARD_INFO("ad5258", 0x18),
         },
 #endif
-#if defined(CONFIG_SND_SOC_SSM2602) || defined(CONFIG_SND_SOC_SSM2602_MODULE)
+#if IS_ENABLED(CONFIG_SND_SOC_SSM2602)
         {
                 I2C_BOARD_INFO("ssm2602", 0x1b),
         },
 #endif
-#if defined(CONFIG_REGULATOR_AD5398) || defined(CONFIG_REGULATOR_AD5398_MODULE)
+#if IS_ENABLED(CONFIG_REGULATOR_AD5398)
         {
                 I2C_BOARD_INFO("ad5398", 0xC),
                 .platform_data = (void *)&ad5398_regulator_data,
         },
 #endif
-#if defined(CONFIG_BACKLIGHT_ADP8860) || defined(CONFIG_BACKLIGHT_ADP8860_MODULE)
+#if IS_ENABLED(CONFIG_BACKLIGHT_ADP8860)
         {
                 I2C_BOARD_INFO("adp8860", 0x2A),
                 .platform_data = (void *)&adp8860_pdata,
         },
 #endif
-#if defined(CONFIG_SND_SOC_ADAU1373) || defined(CONFIG_SND_SOC_ADAU1373_MODULE)
+#if IS_ENABLED(CONFIG_SND_SOC_ADAU1373)
         {
                 I2C_BOARD_INFO("adau1373", 0x1A),
         },
 #endif
-#if defined(CONFIG_BFIN_TWI_LCD) || defined(CONFIG_BFIN_TWI_LCD_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_TWI_LCD)
         {
                 I2C_BOARD_INFO("ad5252", 0x2e),
         },
 #endif
 };
-#if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE) \
-|| defined(CONFIG_BFIN_SPORT) || defined(CONFIG_BFIN_SPORT_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN_SPORT) \
+|| IS_ENABLED(CONFIG_BFIN_SPORT)
 unsigned short bfin_sport0_peripherals[] = {
         P_SPORT0_TFS, P_SPORT0_DTPRI, P_SPORT0_TSCLK, P_SPORT0_RFS,
         P_SPORT0_DRPRI, P_SPORT0_RSCLK, P_SPORT0_DRSEC, P_SPORT0_DTSEC, 0
 };
 #endif
-#if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN_SPORT)
 #ifdef CONFIG_SERIAL_BFIN_SPORT0_UART
 static struct resource bfin_sport0_uart_resources[] = {
         {
@@ -2439,7 +2411,7 @@ static struct platform_device bfin_sport1_uart_device = {
 };
 #endif
 #endif
-#if defined(CONFIG_BFIN_SPORT) || defined(CONFIG_BFIN_SPORT_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_SPORT)
 static struct resource bfin_sport0_resources[] = {
         {
                 .start = SPORT0_TCR1,
@@ -2482,7 +2454,7 @@ static struct platform_device bfin_sport0_device = {
         },
 };
 #endif
-#if defined(CONFIG_PATA_PLATFORM) || defined(CONFIG_PATA_PLATFORM_MODULE)
+#if IS_ENABLED(CONFIG_PATA_PLATFORM)
 #define CF_IDE_NAND_CARD_USE_HDD_INTERFACE
 /* #define CF_IDE_NAND_CARD_USE_CF_IN_COMMON_MEMORY_MODE */
 
@@ -2569,8 +2541,8 @@ static struct platform_device bfin_dpmc = {
         },
 };
 
-#if defined(CONFIG_SND_BF5XX_I2S) || defined(CONFIG_SND_BF5XX_I2S_MODULE) || \
-        defined(CONFIG_SND_BF5XX_AC97) || defined(CONFIG_SND_BF5XX_AC97_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_I2S) || \
+        IS_ENABLED(CONFIG_SND_BF5XX_AC97)
 
 #define SPORT_REQ(x) \
         [x] = {P_SPORT##x##_TFS, P_SPORT##x##_DTPRI, P_SPORT##x##_TSCLK, \
@@ -2620,22 +2592,21 @@ static struct resource bfin_snd_resources[][4] = {
 };
 #endif
 
-#if defined(CONFIG_SND_BF5XX_I2S) || defined(CONFIG_SND_BF5XX_I2S_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_I2S)
 static struct platform_device bfin_i2s_pcm = {
         .name = "bfin-i2s-pcm-audio",
         .id = -1,
 };
 #endif
 
-#if defined(CONFIG_SND_BF5XX_AC97) || defined(CONFIG_SND_BF5XX_AC97_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_AC97)
 static struct platform_device bfin_ac97_pcm = {
         .name = "bfin-ac97-pcm-audio",
         .id = -1,
 };
 #endif
 
-#if defined(CONFIG_SND_BF5XX_SOC_AD1836) \
-                || defined(CONFIG_SND_BF5XX_SOC_AD1836_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_SOC_AD1836)
 static const char * const ad1836_link[] = {
         "bfin-i2s.0",
         "spi0.4",
@@ -2649,8 +2620,7 @@ static struct platform_device bfin_ad1836_machine = {
 };
 #endif
 
-#if defined(CONFIG_SND_BF5XX_SOC_AD73311) || \
-                                defined(CONFIG_SND_BF5XX_SOC_AD73311_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_SOC_AD73311)
 static const unsigned ad73311_gpio[] = {
         GPIO_PF4,
 };
@@ -2664,22 +2634,21 @@ static struct platform_device bfin_ad73311_machine = {
 };
 #endif
 
-#if defined(CONFIG_SND_SOC_AD73311) || defined(CONFIG_SND_SOC_AD73311_MODULE)
+#if IS_ENABLED(CONFIG_SND_SOC_AD73311)
 static struct platform_device bfin_ad73311_codec_device = {
         .name = "ad73311",
         .id = -1,
 };
 #endif
 
-#if defined(CONFIG_SND_SOC_BFIN_EVAL_ADAV80X) || \
-        defined(CONFIG_SND_SOC_BFIN_EVAL_ADAV80X_MODULE)
+#if IS_ENABLED(CONFIG_SND_SOC_BFIN_EVAL_ADAV80X)
 static struct platform_device bfin_eval_adav801_device = {
         .name = "bfin-eval-adav801",
         .id = -1,
 };
 #endif
 
-#if defined(CONFIG_SND_BF5XX_SOC_I2S) || defined(CONFIG_SND_BF5XX_SOC_I2S_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_SOC_I2S)
 static struct platform_device bfin_i2s = {
         .name = "bfin-i2s",
         .id = CONFIG_SND_BF5XX_SPORT_NUM,
@@ -2691,7 +2660,7 @@ static struct platform_device bfin_i2s = {
 };
 #endif
 
-#if defined(CONFIG_SND_BF5XX_SOC_AC97) || defined(CONFIG_SND_BF5XX_SOC_AC97_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_SOC_AC97)
 static struct platform_device bfin_ac97 = {
         .name = "bfin-ac97",
         .id = CONFIG_SND_BF5XX_SPORT_NUM,
@@ -2703,7 +2672,7 @@ static struct platform_device bfin_ac97 = {
 };
 #endif
 
-#if defined(CONFIG_REGULATOR_FIXED_VOLTAGE) || defined(CONFIG_REGULATOR_FIXED_VOLTAGE_MODULE)
+#if IS_ENABLED(CONFIG_REGULATOR_FIXED_VOLTAGE)
 #define REGULATOR_ADP122        "adp122"
 #define REGULATOR_ADP122_UV     2500000
 
@@ -2741,8 +2710,7 @@ static struct platform_device adp_switch_device = {
         },
 };
 
-#if defined(CONFIG_REGULATOR_USERSPACE_CONSUMER) || \
-        defined(CONFIG_REGULATOR_USERSPACE_CONSUMER_MODULE)
+#if IS_ENABLED(CONFIG_REGULATOR_USERSPACE_CONSUMER)
 static struct regulator_bulk_data adp122_bulk_data = {
         .supply = REGULATOR_ADP122,
 };
@@ -2763,8 +2731,7 @@ static struct platform_device adp122_userspace_consumer_device = {
 #endif
 #endif
 
-#if defined(CONFIG_IIO_GPIO_TRIGGER) || \
-        defined(CONFIG_IIO_GPIO_TRIGGER_MODULE)
+#if IS_ENABLED(CONFIG_IIO_GPIO_TRIGGER)
 
 static struct resource iio_gpio_trigger_resources[] = {
         [0] = {
@@ -2781,15 +2748,13 @@ static struct platform_device iio_gpio_trigger = {
 };
 #endif
 
-#if defined(CONFIG_SND_SOC_BFIN_EVAL_ADAU1373) || \
-        defined(CONFIG_SND_SOC_BFIN_EVAL_ADAU1373_MODULE)
+#if IS_ENABLED(CONFIG_SND_SOC_BFIN_EVAL_ADAU1373)
 static struct platform_device bf5xx_adau1373_device = {
         .name = "bfin-eval-adau1373",
 };
 #endif
 
-#if defined(CONFIG_SND_SOC_BFIN_EVAL_ADAU1701) || \
-        defined(CONFIG_SND_SOC_BFIN_EVAL_ADAU1701_MODULE)
+#if IS_ENABLED(CONFIG_SND_SOC_BFIN_EVAL_ADAU1701)
 static struct platform_device bf5xx_adau1701_device = {
         .name = "bfin-eval-adau1701",
 };
@@ -2798,73 +2763,72 @@ static struct platform_device bf5xx_adau1701_device = {
 static struct platform_device *stamp_devices[] __initdata = {
 
         &bfin_dpmc,
-#if defined(CONFIG_BFIN_SPORT) || defined(CONFIG_BFIN_SPORT_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_SPORT)
         &bfin_sport0_device,
 #endif
-#if defined(CONFIG_BFIN_CFPCMCIA) || defined(CONFIG_BFIN_CFPCMCIA_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_CFPCMCIA)
         &bfin_pcmcia_cf_device,
 #endif
 
-#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_RTC_DRV_BFIN)
         &rtc_device,
 #endif
 
-#if defined(CONFIG_USB_SL811_HCD) || defined(CONFIG_USB_SL811_HCD_MODULE)
+#if IS_ENABLED(CONFIG_USB_SL811_HCD)
         &sl811_hcd_device,
 #endif
 
-#if defined(CONFIG_USB_ISP1362_HCD) || defined(CONFIG_USB_ISP1362_HCD_MODULE)
+#if IS_ENABLED(CONFIG_USB_ISP1362_HCD)
         &isp1362_hcd_device,
 #endif
 
-#if defined(CONFIG_USB_ISP1760_HCD) || defined(CONFIG_USB_ISP1760_HCD_MODULE)
+#if IS_ENABLED(CONFIG_USB_ISP1760_HCD)
         &bfin_isp1760_device,
 #endif
 
-#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
+#if IS_ENABLED(CONFIG_SMC91X)
         &smc91x_device,
 #endif
 
-#if defined(CONFIG_DM9000) || defined(CONFIG_DM9000_MODULE)
+#if IS_ENABLED(CONFIG_DM9000)
         &dm9000_device,
 #endif
 
-#if defined(CONFIG_CAN_BFIN) || defined(CONFIG_CAN_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_CAN_BFIN)
         &bfin_can_device,
 #endif
 
-#if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_MAC)
         &bfin_mii_bus,
         &bfin_mac_device,
 #endif
 
-#if defined(CONFIG_USB_NET2272) || defined(CONFIG_USB_NET2272_MODULE)
+#if IS_ENABLED(CONFIG_USB_NET2272)
         &net2272_bfin_device,
 #endif
 
-#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
+#if IS_ENABLED(CONFIG_SPI_BFIN5XX)
         &bfin_spi0_device,
 #endif
 
-#if defined(CONFIG_SPI_BFIN_SPORT) || defined(CONFIG_SPI_BFIN_SPORT_MODULE)
+#if IS_ENABLED(CONFIG_SPI_BFIN_SPORT)
         &bfin_sport_spi0_device,
         &bfin_sport_spi1_device,
 #endif
 
-#if defined(CONFIG_FB_BF537_LQ035) || defined(CONFIG_FB_BF537_LQ035_MODULE)
+#if IS_ENABLED(CONFIG_FB_BF537_LQ035)
         &bfin_fb_device,
 #endif
 
-#if defined(CONFIG_FB_BFIN_LQ035Q1) || defined(CONFIG_FB_BFIN_LQ035Q1_MODULE)
+#if IS_ENABLED(CONFIG_FB_BFIN_LQ035Q1)
         &bfin_lq035q1_device,
 #endif
 
-#if defined(CONFIG_VIDEO_BLACKFIN_CAPTURE) \
-        || defined(CONFIG_VIDEO_BLACKFIN_CAPTURE_MODULE)
+#if IS_ENABLED(CONFIG_VIDEO_BLACKFIN_CAPTURE)
         &bfin_capture_device,
 #endif
 
-#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN)
 #ifdef CONFIG_SERIAL_BFIN_UART0
         &bfin_uart0_device,
 #endif
@@ -2873,7 +2837,7 @@ static struct platform_device *stamp_devices[] __initdata = {
 #endif
 #endif
 
-#if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_SIR)
 #ifdef CONFIG_BFIN_SIR0
         &bfin_sir0_device,
 #endif
@@ -2882,11 +2846,11 @@ static struct platform_device *stamp_devices[] __initdata = {
 #endif
 #endif
 
-#if defined(CONFIG_I2C_BLACKFIN_TWI) || defined(CONFIG_I2C_BLACKFIN_TWI_MODULE)
+#if IS_ENABLED(CONFIG_I2C_BLACKFIN_TWI)
         &i2c_bfin_twi_device,
 #endif
 
-#if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN_SPORT)
 #ifdef CONFIG_SERIAL_BFIN_SPORT0_UART
         &bfin_sport0_uart_device,
 #endif
@@ -2895,95 +2859,86 @@ static struct platform_device *stamp_devices[] __initdata = {
 #endif
 #endif
 
-#if defined(CONFIG_PATA_PLATFORM) || defined(CONFIG_PATA_PLATFORM_MODULE)
+#if IS_ENABLED(CONFIG_PATA_PLATFORM)
         &bfin_pata_device,
 #endif
 
-#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
+#if IS_ENABLED(CONFIG_KEYBOARD_GPIO)
         &bfin_device_gpiokeys,
 #endif
 
-#if defined(CONFIG_MTD_NAND_PLATFORM) || defined(CONFIG_MTD_NAND_PLATFORM_MODULE)
+#if IS_ENABLED(CONFIG_MTD_NAND_PLATFORM)
         &bfin_async_nand_device,
 #endif
 
-#if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
+#if IS_ENABLED(CONFIG_MTD_PHYSMAP)
         &stamp_flash_device,
 #endif
 
-#if defined(CONFIG_SND_BF5XX_I2S) || defined(CONFIG_SND_BF5XX_I2S_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_I2S)
         &bfin_i2s_pcm,
 #endif
 
-#if defined(CONFIG_SND_BF5XX_AC97) || defined(CONFIG_SND_BF5XX_AC97_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_AC97)
         &bfin_ac97_pcm,
 #endif
 
-#if defined(CONFIG_SND_BF5XX_SOC_AD1836) || \
-        defined(CONFIG_SND_BF5XX_SOC_AD1836_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_SOC_AD1836)
         &bfin_ad1836_machine,
 #endif
 
-#if defined(CONFIG_SND_BF5XX_SOC_AD73311) || \
-                defined(CONFIG_SND_BF5XX_SOC_AD73311_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_SOC_AD73311)
         &bfin_ad73311_machine,
 #endif
 
-#if defined(CONFIG_SND_SOC_AD73311) || defined(CONFIG_SND_SOC_AD73311_MODULE)
+#if IS_ENABLED(CONFIG_SND_SOC_AD73311)
         &bfin_ad73311_codec_device,
 #endif
 
-#if defined(CONFIG_SND_BF5XX_SOC_I2S) || defined(CONFIG_SND_BF5XX_SOC_I2S_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_SOC_I2S)
         &bfin_i2s,
 #endif
 
-#if defined(CONFIG_SND_BF5XX_SOC_AC97) || defined(CONFIG_SND_BF5XX_SOC_AC97_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_SOC_AC97)
         &bfin_ac97,
 #endif
 
-#if defined(CONFIG_REGULATOR_AD5398) || defined(CONFIG_REGULATOR_AD5398_MODULE)
-#if defined(CONFIG_REGULATOR_VIRTUAL_CONSUMER) || \
-        defined(CONFIG_REGULATOR_VIRTUAL_CONSUMER_MODULE)
+#if IS_ENABLED(CONFIG_REGULATOR_AD5398)
+#if IS_ENABLED(CONFIG_REGULATOR_VIRTUAL_CONSUMER)
         &ad5398_virt_consumer_device,
 #endif
-#if defined(CONFIG_REGULATOR_USERSPACE_CONSUMER) || \
-        defined(CONFIG_REGULATOR_USERSPACE_CONSUMER_MODULE)
+#if IS_ENABLED(CONFIG_REGULATOR_USERSPACE_CONSUMER)
         &ad5398_userspace_consumer_device,
 #endif
 #endif
 
-#if defined(CONFIG_REGULATOR_FIXED_VOLTAGE) || defined(CONFIG_REGULATOR_FIXED_VOLTAGE_MODULE)
+#if IS_ENABLED(CONFIG_REGULATOR_FIXED_VOLTAGE)
         &adp_switch_device,
-#if defined(CONFIG_REGULATOR_USERSPACE_CONSUMER) || \
-        defined(CONFIG_REGULATOR_USERSPACE_CONSUMER_MODULE)
+#if IS_ENABLED(CONFIG_REGULATOR_USERSPACE_CONSUMER)
         &adp122_userspace_consumer_device,
 #endif
 #endif
 
-#if defined(CONFIG_IIO_GPIO_TRIGGER) || \
-        defined(CONFIG_IIO_GPIO_TRIGGER_MODULE)
+#if IS_ENABLED(CONFIG_IIO_GPIO_TRIGGER)
         &iio_gpio_trigger,
 #endif
 
-#if defined(CONFIG_SND_SOC_BFIN_EVAL_ADAU1373) || \
-        defined(CONFIG_SND_SOC_BFIN_EVAL_ADAU1373_MODULE)
+#if IS_ENABLED(CONFIG_SND_SOC_BFIN_EVAL_ADAU1373)
         &bf5xx_adau1373_device,
 #endif
 
-#if defined(CONFIG_SND_SOC_BFIN_EVAL_ADAU1701) || \
-        defined(CONFIG_SND_SOC_BFIN_EVAL_ADAU1701_MODULE)
+#if IS_ENABLED(CONFIG_SND_SOC_BFIN_EVAL_ADAU1701)
         &bf5xx_adau1701_device,
 #endif
 
-#if defined(CONFIG_SND_SOC_BFIN_EVAL_ADAV80X) || \
-        defined(CONFIG_SND_SOC_BFIN_EVAL_ADAV80X_MODULE)
+#if IS_ENABLED(CONFIG_SND_SOC_BFIN_EVAL_ADAV80X)
         &bfin_eval_adav801_device,
 #endif
 };
 
 static int __init net2272_init(void)
 {
-#if defined(CONFIG_USB_NET2272) || defined(CONFIG_USB_NET2272_MODULE)
+#if IS_ENABLED(CONFIG_USB_NET2272)
         int ret;
 
         ret = gpio_request(GPIO_PF6, "net2272");
diff --git a/arch/blackfin/mach-bf537/boards/tcm_bf537.c b/arch/blackfin/mach-bf537/boards/tcm_bf537.c
index e285c3675286..a0211225748d 100644
--- a/arch/blackfin/mach-bf537/boards/tcm_bf537.c
+++ b/arch/blackfin/mach-bf537/boards/tcm_bf537.c
@@ -16,7 +16,7 @@
 #include <linux/mtd/physmap.h>
 #include <linux/spi/spi.h>
 #include <linux/spi/flash.h>
-#if defined(CONFIG_USB_ISP1362_HCD) || defined(CONFIG_USB_ISP1362_HCD_MODULE)
+#if IS_ENABLED(CONFIG_USB_ISP1362_HCD)
 #include <linux/usb/isp1362.h>
 #endif
 #include <linux/ata_platform.h>
@@ -32,10 +32,10 @@
  */
 const char bfin_board_name[] = "Bluetechnix TCM BF537";
 
-#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
+#if IS_ENABLED(CONFIG_SPI_BFIN5XX)
 /* all SPI peripherals info goes here */
 
-#if defined(CONFIG_MTD_M25P80) || defined(CONFIG_MTD_M25P80_MODULE)
+#if IS_ENABLED(CONFIG_MTD_M25P80)
 static struct mtd_partition bfin_spi_flash_partitions[] = {
         {
                 .name = "bootloader(spi)",
@@ -66,14 +66,14 @@ static struct bfin5xx_spi_chip spi_flash_chip_info = {
 };
 #endif
 
-#if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
+#if IS_ENABLED(CONFIG_MMC_SPI)
 static struct bfin5xx_spi_chip mmc_spi_chip_info = {
         .enable_dma = 0,
 };
 #endif
 
 static struct spi_board_info bfin_spi_board_info[] __initdata = {
-#if defined(CONFIG_MTD_M25P80) || defined(CONFIG_MTD_M25P80_MODULE)
+#if IS_ENABLED(CONFIG_MTD_M25P80)
         {
                 /* the modalias must be the same as spi device driver name */
                 .modalias = "m25p80", /* Name of spi_driver for this device */
@@ -86,7 +86,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
         },
 #endif
 
-#if defined(CONFIG_SND_BF5XX_SOC_AD183X) || defined(CONFIG_SND_BF5XX_SOC_AD183X_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_SOC_AD183X)
         {
                 .modalias = "ad183x",
                 .max_speed_hz = 3125000,     /* max spi clock (SCK) speed in HZ */
@@ -95,7 +95,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
         },
 #endif
 
-#if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
+#if IS_ENABLED(CONFIG_MMC_SPI)
         {
                 .modalias = "mmc_spi",
                 .max_speed_hz = 25000000,     /* max spi clock (SCK) speed in HZ */
@@ -144,20 +144,20 @@ static struct platform_device bfin_spi0_device = {
 };
 #endif  /* spi master and devices */
 
-#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_RTC_DRV_BFIN)
 static struct platform_device rtc_device = {
         .name = "rtc-bfin",
         .id   = -1,
 };
 #endif
 
-#if defined(CONFIG_FB_HITACHI_TX09) || defined(CONFIG_FB_HITACHI_TX09_MODULE)
+#if IS_ENABLED(CONFIG_FB_HITACHI_TX09)
 static struct platform_device hitachi_fb_device = {
         .name = "hitachi-tx09",
 };
 #endif
 
-#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
+#if IS_ENABLED(CONFIG_SMC91X)
 #include <linux/smc91x.h>
 
 static struct smc91x_platdata smc91x_info = {
@@ -189,7 +189,7 @@ static struct platform_device smc91x_device = {
 };
 #endif
 
-#if defined(CONFIG_USB_ISP1362_HCD) || defined(CONFIG_USB_ISP1362_HCD_MODULE)
+#if IS_ENABLED(CONFIG_USB_ISP1362_HCD)
 static struct resource isp1362_hcd_resources[] = {
         {
                 .start = 0x20308000,
@@ -228,7 +228,7 @@ static struct platform_device isp1362_hcd_device = {
 };
 #endif
 
-#if defined(CONFIG_USB_NET2272) || defined(CONFIG_USB_NET2272_MODULE)
+#if IS_ENABLED(CONFIG_USB_NET2272)
 static struct resource net2272_bfin_resources[] = {
         {
                 .start = 0x20300000,
@@ -249,7 +249,7 @@ static struct platform_device net2272_bfin_device = {
 };
 #endif
 
-#if defined(CONFIG_MTD_GPIO_ADDR) || defined(CONFIG_MTD_GPIO_ADDR_MODULE)
+#if IS_ENABLED(CONFIG_MTD_GPIO_ADDR)
 static struct mtd_partition cm_partitions[] = {
         {
                 .name   = "bootloader(nor)",
@@ -298,7 +298,7 @@ static struct platform_device cm_flash_device = {
 };
 #endif
 
-#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN)
 #ifdef CONFIG_SERIAL_BFIN_UART0
 static struct resource bfin_uart0_resources[] = {
         {
@@ -397,7 +397,7 @@ static struct platform_device bfin_uart1_device = {
 #endif
 #endif
 
-#if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_SIR)
 #ifdef CONFIG_BFIN_SIR0
 static struct resource bfin_sir0_resources[] = {
         {
@@ -452,7 +452,7 @@ static struct platform_device bfin_sir1_device = {
 #endif
 #endif
 
-#if defined(CONFIG_I2C_BLACKFIN_TWI) || defined(CONFIG_I2C_BLACKFIN_TWI_MODULE)
+#if IS_ENABLED(CONFIG_I2C_BLACKFIN_TWI)
 static const u16 bfin_twi0_pins[] = {P_TWI0_SCL, P_TWI0_SDA, 0};
 
 static struct resource bfin_twi0_resource[] = {
@@ -479,7 +479,7 @@ static struct platform_device i2c_bfin_twi_device = {
 };
 #endif
 
-#if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN_SPORT)
 #ifdef CONFIG_SERIAL_BFIN_SPORT0_UART
 static struct resource bfin_sport0_uart_resources[] = {
         {
@@ -550,7 +550,7 @@ static struct platform_device bfin_sport1_uart_device = {
 #endif
 #endif
 
-#if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_MAC)
 #include <linux/bfin_mac.h>
 static const unsigned short bfin_mac_peripherals[] = P_MII0;
 
@@ -583,7 +583,7 @@ static struct platform_device bfin_mac_device = {
 };
 #endif
 
-#if defined(CONFIG_PATA_PLATFORM) || defined(CONFIG_PATA_PLATFORM_MODULE)
+#if IS_ENABLED(CONFIG_PATA_PLATFORM)
 #define PATA_INT        IRQ_PF14
 
 static struct pata_platform_info bfin_pata_platform_data = {
@@ -651,15 +651,15 @@ static struct platform_device *cm_bf537_devices[] __initdata = {
 
         &bfin_dpmc,
 
-#if defined(CONFIG_FB_HITACHI_TX09) || defined(CONFIG_FB_HITACHI_TX09_MODULE)
+#if IS_ENABLED(CONFIG_FB_HITACHI_TX09)
         &hitachi_fb_device,
 #endif
 
-#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_RTC_DRV_BFIN)
         &rtc_device,
 #endif
 
-#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN)
 #ifdef CONFIG_SERIAL_BFIN_UART0
         &bfin_uart0_device,
 #endif
@@ -668,7 +668,7 @@ static struct platform_device *cm_bf537_devices[] __initdata = {
 #endif
 #endif
 
-#if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_SIR)
 #ifdef CONFIG_BFIN_SIR0
         &bfin_sir0_device,
 #endif
@@ -677,11 +677,11 @@ static struct platform_device *cm_bf537_devices[] __initdata = {
 #endif
 #endif
 
-#if defined(CONFIG_I2C_BLACKFIN_TWI) || defined(CONFIG_I2C_BLACKFIN_TWI_MODULE)
+#if IS_ENABLED(CONFIG_I2C_BLACKFIN_TWI)
         &i2c_bfin_twi_device,
 #endif
 
-#if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN_SPORT)
 #ifdef CONFIG_SERIAL_BFIN_SPORT0_UART
         &bfin_sport0_uart_device,
 #endif
@@ -690,39 +690,39 @@ static struct platform_device *cm_bf537_devices[] __initdata = {
 #endif
 #endif
 
-#if defined(CONFIG_USB_ISP1362_HCD) || defined(CONFIG_USB_ISP1362_HCD_MODULE)
+#if IS_ENABLED(CONFIG_USB_ISP1362_HCD)
         &isp1362_hcd_device,
 #endif
 
-#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
+#if IS_ENABLED(CONFIG_SMC91X)
         &smc91x_device,
 #endif
 
-#if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_MAC)
         &bfin_mii_bus,
         &bfin_mac_device,
 #endif
 
-#if defined(CONFIG_USB_NET2272) || defined(CONFIG_USB_NET2272_MODULE)
+#if IS_ENABLED(CONFIG_USB_NET2272)
         &net2272_bfin_device,
 #endif
 
-#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
+#if IS_ENABLED(CONFIG_SPI_BFIN5XX)
         &bfin_spi0_device,
 #endif
 
-#if defined(CONFIG_PATA_PLATFORM) || defined(CONFIG_PATA_PLATFORM_MODULE)
+#if IS_ENABLED(CONFIG_PATA_PLATFORM)
         &bfin_pata_device,
 #endif
 
-#if defined(CONFIG_MTD_GPIO_ADDR) || defined(CONFIG_MTD_GPIO_ADDR_MODULE)
+#if IS_ENABLED(CONFIG_MTD_GPIO_ADDR)
         &cm_flash_device,
 #endif
 };
 
 static int __init net2272_init(void)
 {
-#if defined(CONFIG_USB_NET2272) || defined(CONFIG_USB_NET2272_MODULE)
+#if IS_ENABLED(CONFIG_USB_NET2272)
         int ret;
 
         ret = gpio_request(GPIO_PG14, "net2272");
@@ -742,11 +742,11 @@ static int __init tcm_bf537_init(void)
 {
         printk(KERN_INFO "%s(): registering device resources\n", __func__);
         platform_add_devices(cm_bf537_devices, ARRAY_SIZE(cm_bf537_devices));
-#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
+#if IS_ENABLED(CONFIG_SPI_BFIN5XX)
         spi_register_board_info(bfin_spi_board_info, ARRAY_SIZE(bfin_spi_board_info));
 #endif
 
-#if defined(CONFIG_PATA_PLATFORM) || defined(CONFIG_PATA_PLATFORM_MODULE)
+#if IS_ENABLED(CONFIG_PATA_PLATFORM)
         irq_set_status_flags(PATA_INT, IRQ_NOAUTOEN);
 #endif
 
diff --git a/arch/blackfin/mach-bf538/boards/ezkit.c b/arch/blackfin/mach-bf538/boards/ezkit.c
index 755f0dc12010..ae2fcbb00119 100644
--- a/arch/blackfin/mach-bf538/boards/ezkit.c
+++ b/arch/blackfin/mach-bf538/boards/ezkit.c
@@ -33,14 +33,14 @@ const char bfin_board_name[] = "ADI BF538-EZKIT";
  */
 
 
-#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_RTC_DRV_BFIN)
 static struct platform_device rtc_device = {
         .name = "rtc-bfin",
         .id   = -1,
 };
 #endif  /* CONFIG_RTC_DRV_BFIN */
 
-#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN)
 #ifdef CONFIG_SERIAL_BFIN_UART0
 static struct resource bfin_uart0_resources[] = {
         {
@@ -199,7 +199,7 @@ static struct platform_device bfin_uart2_device = {
 #endif  /* CONFIG_SERIAL_BFIN_UART2 */
 #endif  /* CONFIG_SERIAL_BFIN */
 
-#if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_SIR)
 #ifdef CONFIG_BFIN_SIR0
 static struct resource bfin_sir0_resources[] = {
         {
@@ -277,7 +277,7 @@ static struct platform_device bfin_sir2_device = {
 #endif  /* CONFIG_BFIN_SIR2 */
 #endif  /* CONFIG_BFIN_SIR */
 
-#if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN_SPORT)
 #ifdef CONFIG_SERIAL_BFIN_SPORT0_UART
 static struct resource bfin_sport0_uart_resources[] = {
         {
@@ -416,7 +416,7 @@ static struct platform_device bfin_sport3_uart_device = {
 #endif  /* CONFIG_SERIAL_BFIN_SPORT3_UART */
 #endif  /* CONFIG_SERIAL_BFIN_SPORT */
 
-#if defined(CONFIG_CAN_BFIN) || defined(CONFIG_CAN_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_CAN_BFIN)
 static unsigned short bfin_can_peripherals[] = {
         P_CAN0_RX, P_CAN0_TX, 0
 };
@@ -458,7 +458,7 @@ static struct platform_device bfin_can_device = {
  *  USB-LAN EzExtender board
  *  Driver needs to know address, irq and flag pin.
  */
-#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
+#if IS_ENABLED(CONFIG_SMC91X)
 #include <linux/smc91x.h>
 
 static struct smc91x_platdata smc91x_info = {
@@ -490,10 +490,9 @@ static struct platform_device smc91x_device = {
 };
 #endif  /* CONFIG_SMC91X */
 
-#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
+#if IS_ENABLED(CONFIG_SPI_BFIN5XX)
 /* all SPI peripherals info goes here */
-#if defined(CONFIG_MTD_M25P80) \
-        || defined(CONFIG_MTD_M25P80_MODULE)
+#if IS_ENABLED(CONFIG_MTD_M25P80)
 /* SPI flash chip (m25p16) */
 static struct mtd_partition bfin_spi_flash_partitions[] = {
         {
@@ -521,7 +520,7 @@ static struct bfin5xx_spi_chip spi_flash_chip_info = {
 #endif  /* CONFIG_MTD_M25P80 */
 #endif  /* CONFIG_SPI_BFIN5XX */
 
-#if defined(CONFIG_TOUCHSCREEN_AD7879) || defined(CONFIG_TOUCHSCREEN_AD7879_MODULE)
+#if IS_ENABLED(CONFIG_TOUCHSCREEN_AD7879)
 #include <linux/spi/ad7879.h>
 static const struct ad7879_platform_data bfin_ad7879_ts_info = {
         .model                  = 7879, /* Model = AD7879 */
@@ -538,7 +537,7 @@ static const struct ad7879_platform_data bfin_ad7879_ts_info = {
 };
 #endif  /* CONFIG_TOUCHSCREEN_AD7879 */
 
-#if defined(CONFIG_FB_BFIN_LQ035Q1) || defined(CONFIG_FB_BFIN_LQ035Q1_MODULE)
+#if IS_ENABLED(CONFIG_FB_BFIN_LQ035Q1)
 #include <asm/bfin-lq035q1.h>
 
 static struct bfin_lq035q1fb_disp_info bfin_lq035q1_data = {
@@ -568,8 +567,7 @@ static struct platform_device bfin_lq035q1_device = {
 #endif  /* CONFIG_FB_BFIN_LQ035Q1 */
 
 static struct spi_board_info bf538_spi_board_info[] __initdata = {
-#if defined(CONFIG_MTD_M25P80) \
-        || defined(CONFIG_MTD_M25P80_MODULE)
+#if IS_ENABLED(CONFIG_MTD_M25P80)
         {
                 /* the modalias must be the same as spi device driver name */
                 .modalias = "m25p80", /* Name of spi_driver for this device */
@@ -581,7 +579,7 @@ static struct spi_board_info bf538_spi_board_info[] __initdata = {
                 .mode = SPI_MODE_3,
         },
 #endif  /* CONFIG_MTD_M25P80 */
-#if defined(CONFIG_TOUCHSCREEN_AD7879_SPI) || defined(CONFIG_TOUCHSCREEN_AD7879_SPI_MODULE)
+#if IS_ENABLED(CONFIG_TOUCHSCREEN_AD7879_SPI)
         {
                 .modalias = "ad7879",
                 .platform_data = &bfin_ad7879_ts_info,
@@ -592,7 +590,7 @@ static struct spi_board_info bf538_spi_board_info[] __initdata = {
                 .mode = SPI_CPHA | SPI_CPOL,
         },
 #endif  /* CONFIG_TOUCHSCREEN_AD7879_SPI */
-#if defined(CONFIG_FB_BFIN_LQ035Q1) || defined(CONFIG_FB_BFIN_LQ035Q1_MODULE)
+#if IS_ENABLED(CONFIG_FB_BFIN_LQ035Q1)
         {
                 .modalias = "bfin-lq035q1-spi",
                 .max_speed_hz = 20000000,     /* max spi clock (SCK) speed in HZ */
@@ -601,7 +599,7 @@ static struct spi_board_info bf538_spi_board_info[] __initdata = {
                 .mode = SPI_CPHA | SPI_CPOL,
         },
 #endif  /* CONFIG_FB_BFIN_LQ035Q1 */
-#if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
+#if IS_ENABLED(CONFIG_SPI_SPIDEV)
         {
                 .modalias = "spidev",
                 .max_speed_hz = 3125000,     /* max spi clock (SCK) speed in HZ */
@@ -717,7 +715,7 @@ static struct platform_device bf538_spi_master2 = {
                 },
 };
 
-#if defined(CONFIG_I2C_BLACKFIN_TWI) || defined(CONFIG_I2C_BLACKFIN_TWI_MODULE)
+#if IS_ENABLED(CONFIG_I2C_BLACKFIN_TWI)
 static const u16 bfin_twi0_pins[] = {P_TWI0_SCL, P_TWI0_SDA, 0};
 
 static struct resource bfin_twi0_resource[] = {
@@ -766,7 +764,7 @@ static struct platform_device i2c_bfin_twi1_device = {
 };
 #endif  /* CONFIG_I2C_BLACKFIN_TWI */
 
-#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
+#if IS_ENABLED(CONFIG_KEYBOARD_GPIO)
 #include <linux/gpio_keys.h>
 
 static struct gpio_keys_button bfin_gpio_keys_table[] = {
@@ -814,7 +812,7 @@ static struct platform_device bfin_dpmc = {
         },
 };
 
-#if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
+#if IS_ENABLED(CONFIG_MTD_PHYSMAP)
 static struct mtd_partition ezkit_partitions[] = {
         {
                 .name       = "bootloader(nor)",
@@ -839,7 +837,7 @@ static struct physmap_flash_data ezkit_flash_data = {
 
 static struct resource ezkit_flash_resource = {
         .start = 0x20000000,
-#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
+#if IS_ENABLED(CONFIG_SMC91X)
         .end   = 0x202fffff,
 #else
         .end   = 0x203fffff,
@@ -862,11 +860,11 @@ static struct platform_device *cm_bf538_devices[] __initdata = {
 
         &bfin_dpmc,
 
-#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_RTC_DRV_BFIN)
         &rtc_device,
 #endif
 
-#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN)
 #ifdef CONFIG_SERIAL_BFIN_UART0
         &bfin_uart0_device,
 #endif
@@ -878,18 +876,18 @@ static struct platform_device *cm_bf538_devices[] __initdata = {
 #endif
 #endif
 
-#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
+#if IS_ENABLED(CONFIG_SPI_BFIN5XX)
         &bf538_spi_master0,
         &bf538_spi_master1,
         &bf538_spi_master2,
 #endif
 
-#if defined(CONFIG_I2C_BLACKFIN_TWI) || defined(CONFIG_I2C_BLACKFIN_TWI_MODULE)
+#if IS_ENABLED(CONFIG_I2C_BLACKFIN_TWI)
         &i2c_bfin_twi0_device,
         &i2c_bfin_twi1_device,
 #endif
 
-#if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_SIR)
 #ifdef CONFIG_BFIN_SIR0
         &bfin_sir0_device,
 #endif
@@ -901,7 +899,7 @@ static struct platform_device *cm_bf538_devices[] __initdata = {
 #endif
 #endif
 
-#if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN_SPORT)
 #ifdef CONFIG_SERIAL_BFIN_SPORT0_UART
         &bfin_sport0_uart_device,
 #endif
@@ -916,23 +914,23 @@ static struct platform_device *cm_bf538_devices[] __initdata = {
 #endif
 #endif
 
-#if defined(CONFIG_CAN_BFIN) || defined(CONFIG_CAN_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_CAN_BFIN)
         &bfin_can_device,
 #endif
 
-#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
+#if IS_ENABLED(CONFIG_SMC91X)
         &smc91x_device,
 #endif
 
-#if defined(CONFIG_FB_BFIN_LQ035Q1) || defined(CONFIG_FB_BFIN_LQ035Q1_MODULE)
+#if IS_ENABLED(CONFIG_FB_BFIN_LQ035Q1)
         &bfin_lq035q1_device,
 #endif
 
-#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
+#if IS_ENABLED(CONFIG_KEYBOARD_GPIO)
         &bfin_device_gpiokeys,
 #endif
 
-#if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
+#if IS_ENABLED(CONFIG_MTD_PHYSMAP)
         &ezkit_flash_device,
 #endif
 };
@@ -942,7 +940,7 @@ static int __init ezkit_init(void)
         printk(KERN_INFO "%s(): registering device resources\n", __func__);
         platform_add_devices(cm_bf538_devices, ARRAY_SIZE(cm_bf538_devices));
 
-#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
+#if IS_ENABLED(CONFIG_SPI_BFIN5XX)
         spi_register_board_info(bf538_spi_board_info,
                         ARRAY_SIZE(bf538_spi_board_info));
 #endif
diff --git a/arch/blackfin/mach-bf548/boards/cm_bf548.c b/arch/blackfin/mach-bf548/boards/cm_bf548.c
index e92543362f35..6d5ffdead067 100644
--- a/arch/blackfin/mach-bf548/boards/cm_bf548.c
+++ b/arch/blackfin/mach-bf548/boards/cm_bf548.c
@@ -37,7 +37,7 @@ const char bfin_board_name[] = "Bluetechnix CM-BF548";
  *  Driver needs to know address, irq and flag pin.
  */
 
-#if defined(CONFIG_FB_BF54X_LQ043) || defined(CONFIG_FB_BF54X_LQ043_MODULE)
+#if IS_ENABLED(CONFIG_FB_BF54X_LQ043)
 
 #include <mach/bf54x-lq043.h>
 
@@ -69,7 +69,7 @@ static struct platform_device bf54x_lq043_device = {
 };
 #endif
 
-#if defined(CONFIG_KEYBOARD_BFIN) || defined(CONFIG_KEYBOARD_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_KEYBOARD_BFIN)
 static unsigned int bf548_keymap[] = {
         KEYVAL(0, 0, KEY_ENTER),
         KEYVAL(0, 1, KEY_HELP),
@@ -119,14 +119,14 @@ static struct platform_device bf54x_kpad_device = {
 };
 #endif
 
-#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_RTC_DRV_BFIN)
 static struct platform_device rtc_device = {
         .name = "rtc-bfin",
         .id   = -1,
 };
 #endif
 
-#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN)
 #ifdef CONFIG_SERIAL_BFIN_UART0
 static struct resource bfin_uart0_resources[] = {
         {
@@ -353,7 +353,7 @@ static struct platform_device bfin_uart3_device = {
 #endif
 #endif
 
-#if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_SIR)
 #ifdef CONFIG_BFIN_SIR0
 static struct resource bfin_sir0_resources[] = {
         {
@@ -456,7 +456,7 @@ static struct platform_device bfin_sir3_device = {
 #endif
 #endif
 
-#if defined(CONFIG_SMSC911X) || defined(CONFIG_SMSC911X_MODULE)
+#if IS_ENABLED(CONFIG_SMSC911X)
 #include <linux/smsc911x.h>
 
 static struct resource smsc911x_resources[] = {
@@ -491,7 +491,7 @@ static struct platform_device smsc911x_device = {
 };
 #endif
 
-#if defined(CONFIG_USB_MUSB_HDRC) || defined(CONFIG_USB_MUSB_HDRC_MODULE)
+#if IS_ENABLED(CONFIG_USB_MUSB_HDRC)
 static struct resource musb_resources[] = {
         [0] = {
                 .start  = 0xFFC03C00,
@@ -553,7 +553,7 @@ static struct platform_device musb_device = {
 };
 #endif
 
-#if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN_SPORT)
 #ifdef CONFIG_SERIAL_BFIN_SPORT0_UART
 static struct resource bfin_sport0_uart_resources[] = {
         {
@@ -692,7 +692,7 @@ static struct platform_device bfin_sport3_uart_device = {
 #endif
 #endif
 
-#if defined(CONFIG_PATA_BF54X) || defined(CONFIG_PATA_BF54X_MODULE)
+#if IS_ENABLED(CONFIG_PATA_BF54X)
 static struct resource bfin_atapi_resources[] = {
         {
                 .start = 0xFFC03800,
@@ -714,7 +714,7 @@ static struct platform_device bfin_atapi_device = {
 };
 #endif
 
-#if defined(CONFIG_MTD_NAND_BF5XX) || defined(CONFIG_MTD_NAND_BF5XX_MODULE)
+#if IS_ENABLED(CONFIG_MTD_NAND_BF5XX)
 static struct mtd_partition partition_info[] = {
         {
                 .name = "linux kernel(nand)",
@@ -760,7 +760,7 @@ static struct platform_device bf5xx_nand_device = {
 };
 #endif
 
-#if defined(CONFIG_SDH_BFIN) || defined(CONFIG_SDH_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_SDH_BFIN)
 static struct bfin_sd_host bfin_sdh_data = {
         .dma_chan = CH_SDH,
         .irq_int0 = IRQ_SDH_MASK0,
@@ -776,7 +776,7 @@ static struct platform_device bf54x_sdh_device = {
 };
 #endif
 
-#if defined(CONFIG_CAN_BFIN) || defined(CONFIG_CAN_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_CAN_BFIN)
 static unsigned short bfin_can_peripherals[] = {
         P_CAN0_RX, P_CAN0_TX, 0
 };
@@ -814,7 +814,7 @@ static struct platform_device bfin_can_device = {
 };
 #endif
 
-#if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
+#if IS_ENABLED(CONFIG_MTD_PHYSMAP)
 static struct mtd_partition para_partitions[] = {
         {
                 .name       = "bootloader(nor)",
@@ -854,10 +854,9 @@ static struct platform_device para_flash_device = {
 };
 #endif
 
-#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
+#if IS_ENABLED(CONFIG_SPI_BFIN5XX)
 /* all SPI peripherals info goes here */
-#if defined(CONFIG_MTD_M25P80) \
-        || defined(CONFIG_MTD_M25P80_MODULE)
+#if IS_ENABLED(CONFIG_MTD_M25P80)
 /* SPI flash chip (m25p16) */
 static struct mtd_partition bfin_spi_flash_partitions[] = {
         {
@@ -884,7 +883,7 @@ static struct bfin5xx_spi_chip spi_flash_chip_info = {
 };
 #endif
 
-#if defined(CONFIG_TOUCHSCREEN_AD7877) || defined(CONFIG_TOUCHSCREEN_AD7877_MODULE)
+#if IS_ENABLED(CONFIG_TOUCHSCREEN_AD7877)
 static const struct ad7877_platform_data bfin_ad7877_ts_info = {
         .model                  = 7877,
         .vref_delay_usecs       = 50,   /* internal, no capacitor */
@@ -901,8 +900,7 @@ static const struct ad7877_platform_data bfin_ad7877_ts_info = {
 #endif
 
 static struct spi_board_info bf54x_spi_board_info[] __initdata = {
-#if defined(CONFIG_MTD_M25P80) \
-        || defined(CONFIG_MTD_M25P80_MODULE)
+#if IS_ENABLED(CONFIG_MTD_M25P80)
         {
                 /* the modalias must be the same as spi device driver name */
                 .modalias = "m25p80", /* Name of spi_driver for this device */
@@ -914,7 +912,7 @@ static struct spi_board_info bf54x_spi_board_info[] __initdata = {
                 .mode = SPI_MODE_3,
         },
 #endif
-#if defined(CONFIG_TOUCHSCREEN_AD7877) || defined(CONFIG_TOUCHSCREEN_AD7877_MODULE)
+#if IS_ENABLED(CONFIG_TOUCHSCREEN_AD7877)
 {
         .modalias               = "ad7877",
         .platform_data          = &bfin_ad7877_ts_info,
@@ -924,7 +922,7 @@ static struct spi_board_info bf54x_spi_board_info[] __initdata = {
         .chip_select            = 2,
 },
 #endif
-#if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
+#if IS_ENABLED(CONFIG_SPI_SPIDEV)
         {
                 .modalias = "spidev",
                 .max_speed_hz = 3125000,     /* max spi clock (SCK) speed in HZ */
@@ -1006,7 +1004,7 @@ static struct platform_device bf54x_spi_master1 = {
 };
 #endif  /* spi master and devices */
 
-#if defined(CONFIG_I2C_BLACKFIN_TWI) || defined(CONFIG_I2C_BLACKFIN_TWI_MODULE)
+#if IS_ENABLED(CONFIG_I2C_BLACKFIN_TWI)
 static const u16 bfin_twi0_pins[] = {P_TWI0_SCL, P_TWI0_SDA, 0};
 
 static struct resource bfin_twi0_resource[] = {
@@ -1060,7 +1058,7 @@ static struct platform_device i2c_bfin_twi1_device = {
 #endif
 #endif
 
-#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
+#if IS_ENABLED(CONFIG_KEYBOARD_GPIO)
 #include <linux/gpio_keys.h>
 
 static struct gpio_keys_button bfin_gpio_keys_table[] = {
@@ -1112,11 +1110,11 @@ static struct platform_device *cm_bf548_devices[] __initdata = {
 
         &bfin_dpmc,
 
-#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_RTC_DRV_BFIN)
         &rtc_device,
 #endif
 
-#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN)
 #ifdef CONFIG_SERIAL_BFIN_UART0
         &bfin_uart0_device,
 #endif
@@ -1131,7 +1129,7 @@ static struct platform_device *cm_bf548_devices[] __initdata = {
 #endif
 #endif
 
-#if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_SIR)
 #ifdef CONFIG_BFIN_SIR0
         &bfin_sir0_device,
 #endif
@@ -1146,19 +1144,19 @@ static struct platform_device *cm_bf548_devices[] __initdata = {
 #endif
 #endif
 
-#if defined(CONFIG_FB_BF54X_LQ043) || defined(CONFIG_FB_BF54X_LQ043_MODULE)
+#if IS_ENABLED(CONFIG_FB_BF54X_LQ043)
         &bf54x_lq043_device,
 #endif
 
-#if defined(CONFIG_SMSC911X) || defined(CONFIG_SMSC911X_MODULE)
+#if IS_ENABLED(CONFIG_SMSC911X)
         &smsc911x_device,
 #endif
 
-#if defined(CONFIG_USB_MUSB_HDRC) || defined(CONFIG_USB_MUSB_HDRC_MODULE)
+#if IS_ENABLED(CONFIG_USB_MUSB_HDRC)
         &musb_device,
 #endif
 
-#if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN_SPORT)
 #ifdef CONFIG_SERIAL_BFIN_SPORT0_UART
         &bfin_sport0_uart_device,
 #endif
@@ -1173,43 +1171,43 @@ static struct platform_device *cm_bf548_devices[] __initdata = {
 #endif
 #endif
 
-#if defined(CONFIG_PATA_BF54X) || defined(CONFIG_PATA_BF54X_MODULE)
+#if IS_ENABLED(CONFIG_PATA_BF54X)
         &bfin_atapi_device,
 #endif
 
-#if defined(CONFIG_MTD_NAND_BF5XX) || defined(CONFIG_MTD_NAND_BF5XX_MODULE)
+#if IS_ENABLED(CONFIG_MTD_NAND_BF5XX)
         &bf5xx_nand_device,
 #endif
 
-#if defined(CONFIG_SDH_BFIN) || defined(CONFIG_SDH_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_SDH_BFIN)
         &bf54x_sdh_device,
 #endif
 
-#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
+#if IS_ENABLED(CONFIG_SPI_BFIN5XX)
         &bf54x_spi_master0,
         &bf54x_spi_master1,
 #endif
 
-#if defined(CONFIG_KEYBOARD_BFIN) || defined(CONFIG_KEYBOARD_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_KEYBOARD_BFIN)
         &bf54x_kpad_device,
 #endif
 
-#if defined(CONFIG_I2C_BLACKFIN_TWI) || defined(CONFIG_I2C_BLACKFIN_TWI_MODULE)
+#if IS_ENABLED(CONFIG_I2C_BLACKFIN_TWI)
         &i2c_bfin_twi0_device,
 #if !defined(CONFIG_BF542)
         &i2c_bfin_twi1_device,
 #endif
 #endif
 
-#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
+#if IS_ENABLED(CONFIG_KEYBOARD_GPIO)
         &bfin_device_gpiokeys,
 #endif
 
-#if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
+#if IS_ENABLED(CONFIG_MTD_PHYSMAP)
         &para_flash_device,
 #endif
 
-#if defined(CONFIG_CAN_BFIN) || defined(CONFIG_CAN_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_CAN_BFIN)
         &bfin_can_device,
 #endif
 
@@ -1220,7 +1218,7 @@ static int __init cm_bf548_init(void)
         printk(KERN_INFO "%s(): registering device resources\n", __func__);
         platform_add_devices(cm_bf548_devices, ARRAY_SIZE(cm_bf548_devices));
 
-#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
+#if IS_ENABLED(CONFIG_SPI_BFIN5XX)
         spi_register_board_info(bf54x_spi_board_info,
                         ARRAY_SIZE(bf54x_spi_board_info));
 #endif
diff --git a/arch/blackfin/mach-bf548/boards/ezkit.c b/arch/blackfin/mach-bf548/boards/ezkit.c
index d495000b81a0..90138e6112c1 100644
--- a/arch/blackfin/mach-bf548/boards/ezkit.c
+++ b/arch/blackfin/mach-bf548/boards/ezkit.c
@@ -41,7 +41,7 @@ const char bfin_board_name[] = "ADI BF548-EZKIT";
  *  Driver needs to know address, irq and flag pin.
  */
 
-#if defined(CONFIG_USB_ISP1760_HCD) || defined(CONFIG_USB_ISP1760_HCD_MODULE)
+#if IS_ENABLED(CONFIG_USB_ISP1760_HCD)
 #include <linux/usb/isp1760.h>
 static struct resource bfin_isp1760_resources[] = {
         [0] = {
@@ -76,7 +76,7 @@ static struct platform_device bfin_isp1760_device = {
 };
 #endif
 
-#if defined(CONFIG_FB_BF54X_LQ043) || defined(CONFIG_FB_BF54X_LQ043_MODULE)
+#if IS_ENABLED(CONFIG_FB_BF54X_LQ043)
 
 #include <mach/bf54x-lq043.h>
 
@@ -108,7 +108,7 @@ static struct platform_device bf54x_lq043_device = {
 };
 #endif
 
-#if defined(CONFIG_KEYBOARD_BFIN) || defined(CONFIG_KEYBOARD_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_KEYBOARD_BFIN)
 static const unsigned int bf548_keymap[] = {
         KEYVAL(0, 0, KEY_ENTER),
         KEYVAL(0, 1, KEY_HELP),
@@ -158,7 +158,7 @@ static struct platform_device bf54x_kpad_device = {
 };
 #endif
 
-#if defined(CONFIG_INPUT_BFIN_ROTARY) || defined(CONFIG_INPUT_BFIN_ROTARY_MODULE)
+#if IS_ENABLED(CONFIG_INPUT_BFIN_ROTARY)
 #include <asm/bfin_rotary.h>
 
 static struct bfin_rotary_platform_data bfin_rotary_data = {
@@ -190,7 +190,7 @@ static struct platform_device bfin_rotary_device = {
 };
 #endif
 
-#if defined(CONFIG_INPUT_ADXL34X) || defined(CONFIG_INPUT_ADXL34X_MODULE)
+#if IS_ENABLED(CONFIG_INPUT_ADXL34X)
 #include <linux/input/adxl34x.h>
 static const struct adxl34x_platform_data adxl34x_info = {
         .x_axis_offset = 0,
@@ -229,14 +229,14 @@ static const struct adxl34x_platform_data adxl34x_info = {
 };
 #endif
 
-#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_RTC_DRV_BFIN)
 static struct platform_device rtc_device = {
         .name = "rtc-bfin",
         .id   = -1,
 };
 #endif
 
-#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN)
 #ifdef CONFIG_SERIAL_BFIN_UART0
 static struct resource bfin_uart0_resources[] = {
         {
@@ -491,7 +491,7 @@ static struct platform_device bfin_uart3_device = {
 #endif
 #endif
 
-#if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_SIR)
 #ifdef CONFIG_BFIN_SIR0
 static struct resource bfin_sir0_resources[] = {
         {
@@ -594,7 +594,7 @@ static struct platform_device bfin_sir3_device = {
 #endif
 #endif
 
-#if defined(CONFIG_SMSC911X) || defined(CONFIG_SMSC911X_MODULE)
+#if IS_ENABLED(CONFIG_SMSC911X)
 #include <linux/smsc911x.h>
 
 static struct resource smsc911x_resources[] = {
@@ -629,7 +629,7 @@ static struct platform_device smsc911x_device = {
 };
 #endif
 
-#if defined(CONFIG_USB_MUSB_HDRC) || defined(CONFIG_USB_MUSB_HDRC_MODULE)
+#if IS_ENABLED(CONFIG_USB_MUSB_HDRC)
 static struct resource musb_resources[] = {
         [0] = {
                 .start  = 0xFFC03C00,
@@ -691,7 +691,7 @@ static struct platform_device musb_device = {
 };
 #endif
 
-#if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN_SPORT)
 #ifdef CONFIG_SERIAL_BFIN_SPORT0_UART
 static struct resource bfin_sport0_uart_resources[] = {
         {
@@ -830,7 +830,7 @@ static struct platform_device bfin_sport3_uart_device = {
 #endif
 #endif
 
-#if defined(CONFIG_CAN_BFIN) || defined(CONFIG_CAN_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_CAN_BFIN)
 
 static unsigned short bfin_can0_peripherals[] = {
         P_CAN0_RX, P_CAN0_TX, 0
@@ -908,7 +908,7 @@ static struct platform_device bfin_can1_device = {
 
 #endif
 
-#if defined(CONFIG_PATA_BF54X) || defined(CONFIG_PATA_BF54X_MODULE)
+#if IS_ENABLED(CONFIG_PATA_BF54X)
 static struct resource bfin_atapi_resources[] = {
         {
                 .start = 0xFFC03800,
@@ -930,7 +930,7 @@ static struct platform_device bfin_atapi_device = {
 };
 #endif
 
-#if defined(CONFIG_MTD_NAND_BF5XX) || defined(CONFIG_MTD_NAND_BF5XX_MODULE)
+#if IS_ENABLED(CONFIG_MTD_NAND_BF5XX)
 static struct mtd_partition partition_info[] = {
         {
                 .name = "bootloader(nand)",
@@ -980,7 +980,7 @@ static struct platform_device bf5xx_nand_device = {
 };
 #endif
 
-#if defined(CONFIG_SDH_BFIN) || defined(CONFIG_SDH_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_SDH_BFIN)
 
 static struct bfin_sd_host bfin_sdh_data = {
         .dma_chan = CH_SDH,
@@ -997,7 +997,7 @@ static struct platform_device bf54x_sdh_device = {
 };
 #endif
 
-#if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
+#if IS_ENABLED(CONFIG_MTD_PHYSMAP)
 static struct mtd_partition ezkit_partitions[] = {
         {
                 .name       = "bootloader(nor)",
@@ -1045,8 +1045,7 @@ static struct platform_device ezkit_flash_device = {
 };
 #endif
 
-#if defined(CONFIG_MTD_M25P80) \
-        || defined(CONFIG_MTD_M25P80_MODULE)
+#if IS_ENABLED(CONFIG_MTD_M25P80)
 /* SPI flash chip (m25p16) */
 static struct mtd_partition bfin_spi_flash_partitions[] = {
         {
@@ -1073,7 +1072,7 @@ static struct bfin5xx_spi_chip spi_flash_chip_info = {
 };
 #endif
 
-#if defined(CONFIG_TOUCHSCREEN_AD7877) || defined(CONFIG_TOUCHSCREEN_AD7877_MODULE)
+#if IS_ENABLED(CONFIG_TOUCHSCREEN_AD7877)
 static const struct ad7877_platform_data bfin_ad7877_ts_info = {
         .model                  = 7877,
         .vref_delay_usecs       = 50,   /* internal, no capacitor */
@@ -1495,8 +1494,7 @@ static struct platform_device bfin_gpj_device = {
 #endif
 
 static struct spi_board_info bfin_spi_board_info[] __initdata = {
-#if defined(CONFIG_MTD_M25P80) \
-        || defined(CONFIG_MTD_M25P80_MODULE)
+#if IS_ENABLED(CONFIG_MTD_M25P80)
         {
                 /* the modalias must be the same as spi device driver name */
                 .modalias = "m25p80", /* Name of spi_driver for this device */
@@ -1508,8 +1506,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .mode = SPI_MODE_3,
         },
 #endif
-#if defined(CONFIG_SND_BF5XX_SOC_AD183X) \
-        || defined(CONFIG_SND_BF5XX_SOC_AD183X_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_SOC_AD183X)
         {
                 .modalias = "ad183x",
                 .max_speed_hz = 3125000,     /* max spi clock (SCK) speed in HZ */
@@ -1517,7 +1514,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .chip_select = MAX_CTRL_CS + GPIO_PG6, /* SPI_SSEL2 */
         },
 #endif
-#if defined(CONFIG_TOUCHSCREEN_AD7877) || defined(CONFIG_TOUCHSCREEN_AD7877_MODULE)
+#if IS_ENABLED(CONFIG_TOUCHSCREEN_AD7877)
         {
                 .modalias               = "ad7877",
                 .platform_data          = &bfin_ad7877_ts_info,
@@ -1527,7 +1524,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .chip_select            = MAX_CTRL_CS + GPIO_PE5, /* SPI_SSEL2 */
         },
 #endif
-#if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
+#if IS_ENABLED(CONFIG_SPI_SPIDEV)
         {
                 .modalias = "spidev",
                 .max_speed_hz = 3125000,     /* max spi clock (SCK) speed in HZ */
@@ -1535,7 +1532,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .chip_select = MAX_CTRL_CS + GPIO_PE4, /* SPI_SSEL1 */
         },
 #endif
-#if defined(CONFIG_INPUT_ADXL34X_SPI) || defined(CONFIG_INPUT_ADXL34X_SPI_MODULE)
+#if IS_ENABLED(CONFIG_INPUT_ADXL34X_SPI)
         {
                 .modalias               = "adxl34x",
                 .platform_data          = &adxl34x_info,
@@ -1547,7 +1544,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
         },
 #endif
 };
-#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
+#if IS_ENABLED(CONFIG_SPI_BFIN5XX)
 /* SPI (0) */
 static struct resource bfin_spi0_resource[] = {
         [0] = {
@@ -1620,8 +1617,7 @@ static struct platform_device bf54x_spi_master1 = {
 };
 #endif  /* spi master and devices */
 
-#if defined(CONFIG_VIDEO_BLACKFIN_CAPTURE) \
-        || defined(CONFIG_VIDEO_BLACKFIN_CAPTURE_MODULE)
+#if IS_ENABLED(CONFIG_VIDEO_BLACKFIN_CAPTURE)
 #include <linux/videodev2.h>
 #include <media/blackfin/bfin_capture.h>
 #include <media/blackfin/ppi.h>
@@ -1641,8 +1637,7 @@ static const struct ppi_info ppi_info = {
         .pin_req = ppi_req,
 };
 
-#if defined(CONFIG_VIDEO_VS6624) \
-        || defined(CONFIG_VIDEO_VS6624_MODULE)
+#if IS_ENABLED(CONFIG_VIDEO_VS6624)
 static struct v4l2_input vs6624_inputs[] = {
         {
                 .index = 0,
@@ -1687,7 +1682,7 @@ static struct platform_device bfin_capture_device = {
 };
 #endif
 
-#if defined(CONFIG_I2C_BLACKFIN_TWI) || defined(CONFIG_I2C_BLACKFIN_TWI_MODULE)
+#if IS_ENABLED(CONFIG_I2C_BLACKFIN_TWI)
 static const u16 bfin_twi0_pins[] = {P_TWI0_SCL, P_TWI0_SDA, 0};
 
 static struct resource bfin_twi0_resource[] = {
@@ -1742,7 +1737,7 @@ static struct platform_device i2c_bfin_twi1_device = {
 #endif
 
 static struct i2c_board_info __initdata bfin_i2c_board_info0[] = {
-#if defined(CONFIG_SND_SOC_SSM2602) || defined(CONFIG_SND_SOC_SSM2602_MODULE)
+#if IS_ENABLED(CONFIG_SND_SOC_SSM2602)
         {
                 I2C_BOARD_INFO("ssm2602", 0x1b),
         },
@@ -1751,25 +1746,25 @@ static struct i2c_board_info __initdata bfin_i2c_board_info0[] = {
 
 #if !defined(CONFIG_BF542)      /* The BF542 only has 1 TWI */
 static struct i2c_board_info __initdata bfin_i2c_board_info1[] = {
-#if defined(CONFIG_BFIN_TWI_LCD) || defined(CONFIG_BFIN_TWI_LCD_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_TWI_LCD)
         {
                 I2C_BOARD_INFO("pcf8574_lcd", 0x22),
         },
 #endif
-#if defined(CONFIG_INPUT_PCF8574) || defined(CONFIG_INPUT_PCF8574_MODULE)
+#if IS_ENABLED(CONFIG_INPUT_PCF8574)
         {
                 I2C_BOARD_INFO("pcf8574_keypad", 0x27),
                 .irq = 212,
         },
 #endif
-#if defined(CONFIG_INPUT_ADXL34X_I2C) || defined(CONFIG_INPUT_ADXL34X_I2C_MODULE)
+#if IS_ENABLED(CONFIG_INPUT_ADXL34X_I2C)
         {
                 I2C_BOARD_INFO("adxl34x", 0x53),
                 .irq = IRQ_PC5,
                 .platform_data = (void *)&adxl34x_info,
         },
 #endif
-#if defined(CONFIG_BFIN_TWI_LCD) || defined(CONFIG_BFIN_TWI_LCD_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_TWI_LCD)
         {
                 I2C_BOARD_INFO("ad5252", 0x2f),
         },
@@ -1777,7 +1772,7 @@ static struct i2c_board_info __initdata bfin_i2c_board_info1[] = {
 };
 #endif
 
-#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
+#if IS_ENABLED(CONFIG_KEYBOARD_GPIO)
 #include <linux/gpio_keys.h>
 
 static struct gpio_keys_button bfin_gpio_keys_table[] = {
@@ -1828,8 +1823,8 @@ static struct platform_device bfin_dpmc = {
         },
 };
 
-#if defined(CONFIG_SND_BF5XX_I2S) || defined(CONFIG_SND_BF5XX_I2S_MODULE) || \
-        defined(CONFIG_SND_BF5XX_AC97) || defined(CONFIG_SND_BF5XX_AC97_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_I2S) || \
+        IS_ENABLED(CONFIG_SND_BF5XX_AC97)
 
 #define SPORT_REQ(x) \
         [x] = {P_SPORT##x##_TFS, P_SPORT##x##_DTPRI, P_SPORT##x##_TSCLK, \
@@ -1889,35 +1884,35 @@ static struct resource bfin_snd_resources[][4] = {
 };
 #endif
 
-#if defined(CONFIG_SND_BF5XX_I2S) || defined(CONFIG_SND_BF5XX_I2S_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_I2S)
 static struct platform_device bfin_i2s_pcm = {
         .name = "bfin-i2s-pcm-audio",
         .id = -1,
 };
 #endif
 
-#if defined(CONFIG_SND_BF5XX_AC97) || defined(CONFIG_SND_BF5XX_AC97_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_AC97)
 static struct platform_device bfin_ac97_pcm = {
         .name = "bfin-ac97-pcm-audio",
         .id = -1,
 };
 #endif
 
-#if defined(CONFIG_SND_BF5XX_SOC_AD73311) || defined(CONFIG_SND_BF5XX_SOC_AD73311_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_SOC_AD73311)
 static struct platform_device bfin_ad73311_codec_device = {
         .name = "ad73311",
         .id = -1,
 };
 #endif
 
-#if defined(CONFIG_SND_BF5XX_SOC_AD1980) || defined(CONFIG_SND_BF5XX_SOC_AD1980_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_SOC_AD1980)
 static struct platform_device bfin_ad1980_codec_device = {
         .name = "ad1980",
         .id = -1,
 };
 #endif
 
-#if defined(CONFIG_SND_BF5XX_SOC_I2S) || defined(CONFIG_SND_BF5XX_SOC_I2S_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_SOC_I2S)
 static struct platform_device bfin_i2s = {
         .name = "bfin-i2s",
         .id = CONFIG_SND_BF5XX_SPORT_NUM,
@@ -1929,7 +1924,7 @@ static struct platform_device bfin_i2s = {
 };
 #endif
 
-#if defined(CONFIG_SND_BF5XX_SOC_AC97) || defined(CONFIG_SND_BF5XX_SOC_AC97_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_SOC_AC97)
 static struct platform_device bfin_ac97 = {
         .name = "bfin-ac97",
         .id = CONFIG_SND_BF5XX_SPORT_NUM,
@@ -1962,11 +1957,11 @@ static struct platform_device *ezkit_devices[] __initdata = {
         &bfin_gpj_device,
 #endif
 
-#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_RTC_DRV_BFIN)
         &rtc_device,
 #endif
 
-#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN)
 #ifdef CONFIG_SERIAL_BFIN_UART0
         &bfin_uart0_device,
 #endif
@@ -1981,7 +1976,7 @@ static struct platform_device *ezkit_devices[] __initdata = {
 #endif
 #endif
 
-#if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_SIR)
 #ifdef CONFIG_BFIN_SIR0
         &bfin_sir0_device,
 #endif
@@ -1996,23 +1991,23 @@ static struct platform_device *ezkit_devices[] __initdata = {
 #endif
 #endif
 
-#if defined(CONFIG_FB_BF54X_LQ043) || defined(CONFIG_FB_BF54X_LQ043_MODULE)
+#if IS_ENABLED(CONFIG_FB_BF54X_LQ043)
         &bf54x_lq043_device,
 #endif
 
-#if defined(CONFIG_SMSC911X) || defined(CONFIG_SMSC911X_MODULE)
+#if IS_ENABLED(CONFIG_SMSC911X)
         &smsc911x_device,
 #endif
 
-#if defined(CONFIG_USB_MUSB_HDRC) || defined(CONFIG_USB_MUSB_HDRC_MODULE)
+#if IS_ENABLED(CONFIG_USB_MUSB_HDRC)
         &musb_device,
 #endif
 
-#if defined(CONFIG_USB_ISP1760_HCD) || defined(CONFIG_USB_ISP1760_HCD_MODULE)
+#if IS_ENABLED(CONFIG_USB_ISP1760_HCD)
         &bfin_isp1760_device,
 #endif
 
-#if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN_SPORT)
 #ifdef CONFIG_SERIAL_BFIN_SPORT0_UART
         &bfin_sport0_uart_device,
 #endif
@@ -2027,72 +2022,71 @@ static struct platform_device *ezkit_devices[] __initdata = {
 #endif
 #endif
 
-#if defined(CONFIG_CAN_BFIN) || defined(CONFIG_CAN_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_CAN_BFIN)
         &bfin_can0_device,
         &bfin_can1_device,
 #endif
 
-#if defined(CONFIG_PATA_BF54X) || defined(CONFIG_PATA_BF54X_MODULE)
+#if IS_ENABLED(CONFIG_PATA_BF54X)
         &bfin_atapi_device,
 #endif
 
-#if defined(CONFIG_MTD_NAND_BF5XX) || defined(CONFIG_MTD_NAND_BF5XX_MODULE)
+#if IS_ENABLED(CONFIG_MTD_NAND_BF5XX)
         &bf5xx_nand_device,
 #endif
 
-#if defined(CONFIG_SDH_BFIN) || defined(CONFIG_SDH_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_SDH_BFIN)
         &bf54x_sdh_device,
 #endif
 
-#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
+#if IS_ENABLED(CONFIG_SPI_BFIN5XX)
         &bf54x_spi_master0,
         &bf54x_spi_master1,
 #endif
-#if defined(CONFIG_VIDEO_BLACKFIN_CAPTURE) \
-        || defined(CONFIG_VIDEO_BLACKFIN_CAPTURE_MODULE)
+#if IS_ENABLED(CONFIG_VIDEO_BLACKFIN_CAPTURE)
         &bfin_capture_device,
 #endif
 
-#if defined(CONFIG_KEYBOARD_BFIN) || defined(CONFIG_KEYBOARD_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_KEYBOARD_BFIN)
         &bf54x_kpad_device,
 #endif
 
-#if defined(CONFIG_INPUT_BFIN_ROTARY) || defined(CONFIG_INPUT_BFIN_ROTARY_MODULE)
+#if IS_ENABLED(CONFIG_INPUT_BFIN_ROTARY)
         &bfin_rotary_device,
 #endif
 
-#if defined(CONFIG_I2C_BLACKFIN_TWI) || defined(CONFIG_I2C_BLACKFIN_TWI_MODULE)
+#if IS_ENABLED(CONFIG_I2C_BLACKFIN_TWI)
         &i2c_bfin_twi0_device,
 #if !defined(CONFIG_BF542)
         &i2c_bfin_twi1_device,
 #endif
 #endif
 
-#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
+#if IS_ENABLED(CONFIG_KEYBOARD_GPIO)
         &bfin_device_gpiokeys,
 #endif
 
-#if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
+#if IS_ENABLED(CONFIG_MTD_PHYSMAP)
         &ezkit_flash_device,
 #endif
 
-#if defined(CONFIG_SND_BF5XX_I2S) || defined(CONFIG_SND_BF5XX_I2S_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_I2S)
         &bfin_i2s_pcm,
 #endif
 
-#if defined(CONFIG_SND_BF5XX_AC97) || defined(CONFIG_SND_BF5XX_AC97_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_AC97)
         &bfin_ac97_pcm,
 #endif
 
-#if defined(CONFIG_SND_BF5XX_SOC_AD1980) || defined(CONFIG_SND_BF5XX_SOC_AD1980_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_SOC_AD1980)
         &bfin_ad1980_codec_device,
 #endif
 
-#if defined(CONFIG_SND_BF5XX_I2S) || defined(CONFIG_SND_BF5XX_I2S_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_I2S)
         &bfin_i2s,
 #endif
 
-#if defined(CONFIG_SND_BF5XX_AC97) || defined(CONFIG_SND_BF5XX_AC97_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_AC97)
         &bfin_ac97,
 #endif
 };
diff --git a/arch/blackfin/mach-bf548/include/mach/defBF544.h b/arch/blackfin/mach-bf548/include/mach/defBF544.h
index 329b2c58228b..018ebfc27f5a 100644
--- a/arch/blackfin/mach-bf548/include/mach/defBF544.h
+++ b/arch/blackfin/mach-bf548/include/mach/defBF544.h
@@ -601,36 +601,6 @@
 #define                  GU_TRANS  0xff00     /* Transparent Color - G/U Component */
 #define                  BV_TRANS  0xff0000   /* Transparent Color - B/V Component */
 
-/* Bit masks for HOST_CONTROL */
-
-#define                   HOST_EN  0x1        /* Host Enable */
-#define                  HOST_END  0x2        /* Host Endianess */
-#define                 DATA_SIZE  0x4        /* Data Size */
-#define                  HOST_RST  0x8        /* Host Reset */
-#define                  HRDY_OVR  0x20       /* Host Ready Override */
-#define                  INT_MODE  0x40       /* Interrupt Mode */
-#define                     BT_EN  0x80       /* Bus Timeout Enable */
-#define                       EHW  0x100      /* Enable Host Write */
-#define                       EHR  0x200      /* Enable Host Read */
-#define                       BDR  0x400      /* Burst DMA Requests */
-
-/* Bit masks for HOST_STATUS */
-
-#define                 DMA_READY  0x1        /* DMA Ready */
-#define                  FIFOFULL  0x2        /* FIFO Full */
-#define                 FIFOEMPTY  0x4        /* FIFO Empty */
-#define              DMA_COMPLETE  0x8        /* DMA Complete */
-#define                      HSHK  0x10       /* Host Handshake */
-#define                 HSTIMEOUT  0x20       /* Host Timeout */
-#define                      HIRQ  0x40       /* Host Interrupt Request */
-#define                ALLOW_CNFG  0x80       /* Allow New Configuration */
-#define                   DMA_DIR  0x100      /* DMA Direction */
-#define                       BTE  0x200      /* Bus Timeout Enabled */
-
-/* Bit masks for HOST_TIMEOUT */
-
-#define             COUNT_TIMEOUT  0x7ff      /* Host Timeout count */
-
 /* Bit masks for TIMER_ENABLE1 */
 
 #define                    TIMEN8  0x1        /* Timer 8 Enable */
diff --git a/arch/blackfin/mach-bf548/include/mach/defBF547.h b/arch/blackfin/mach-bf548/include/mach/defBF547.h
index e18de212ba1a..d55dcc0f5324 100644
--- a/arch/blackfin/mach-bf548/include/mach/defBF547.h
+++ b/arch/blackfin/mach-bf548/include/mach/defBF547.h
@@ -581,36 +581,6 @@
 #define                  GU_TRANS  0xff00     /* Transparent Color - G/U Component */
 #define                  BV_TRANS  0xff0000   /* Transparent Color - B/V Component */
 
-/* Bit masks for HOST_CONTROL */
-
-#define                   HOST_EN  0x1        /* Host Enable */
-#define                  HOST_END  0x2        /* Host Endianess */
-#define                 DATA_SIZE  0x4        /* Data Size */
-#define                  HOST_RST  0x8        /* Host Reset */
-#define                  HRDY_OVR  0x20       /* Host Ready Override */
-#define                  INT_MODE  0x40       /* Interrupt Mode */
-#define                     BT_EN  0x80       /* Bus Timeout Enable */
-#define                       EHW  0x100      /* Enable Host Write */
-#define                       EHR  0x200      /* Enable Host Read */
-#define                       BDR  0x400      /* Burst DMA Requests */
-
-/* Bit masks for HOST_STATUS */
-
-#define                 DMA_READY  0x1        /* DMA Ready */
-#define                  FIFOFULL  0x2        /* FIFO Full */
-#define                 FIFOEMPTY  0x4        /* FIFO Empty */
-#define              DMA_COMPLETE  0x8        /* DMA Complete */
-#define                      HSHK  0x10       /* Host Handshake */
-#define                 HSTIMEOUT  0x20       /* Host Timeout */
-#define                      HIRQ  0x40       /* Host Interrupt Request */
-#define                ALLOW_CNFG  0x80       /* Allow New Configuration */
-#define                   DMA_DIR  0x100      /* DMA Direction */
-#define                       BTE  0x200      /* Bus Timeout Enabled */
-
-/* Bit masks for HOST_TIMEOUT */
-
-#define             COUNT_TIMEOUT  0x7ff      /* Host Timeout count */
-
 /* Bit masks for KPAD_CTL */
 
 #define                   KPAD_EN  0x1        /* Keypad Enable */
diff --git a/arch/blackfin/mach-bf561/boards/acvilon.c b/arch/blackfin/mach-bf561/boards/acvilon.c
index 0b74218fdd3a..430b16d5ccb1 100644
--- a/arch/blackfin/mach-bf561/boards/acvilon.c
+++ b/arch/blackfin/mach-bf561/boards/acvilon.c
@@ -60,7 +60,7 @@
  */
 const char bfin_board_name[] = "Acvilon board";
 
-#if defined(CONFIG_USB_ISP1760_HCD) || defined(CONFIG_USB_ISP1760_HCD_MODULE)
+#if IS_ENABLED(CONFIG_USB_ISP1760_HCD)
 #include <linux/usb/isp1760.h>
 static struct resource bfin_isp1760_resources[] = {
         [0] = {
@@ -137,7 +137,7 @@ static struct i2c_board_info acvilon_i2c_devs[] __initdata = {
          },
 };
 
-#if defined(CONFIG_MTD_PLATRAM) || defined(CONFIG_MTD_PLATRAM_MODULE)
+#if IS_ENABLED(CONFIG_MTD_PLATRAM)
 static struct platdata_mtd_ram mtd_ram_data = {
         .mapname = "rootfs(RAM)",
         .bankwidth = 4,
@@ -160,7 +160,7 @@ static struct platform_device mtd_ram_device = {
 };
 #endif
 
-#if defined(CONFIG_SMSC911X) || defined(CONFIG_SMSC911X_MODULE)
+#if IS_ENABLED(CONFIG_SMSC911X)
 #include <linux/smsc911x.h>
 static struct resource smsc911x_resources[] = {
         {
@@ -194,7 +194,7 @@ static struct platform_device smsc911x_device = {
 };
 #endif
 
-#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN)
 #ifdef CONFIG_SERIAL_BFIN_UART0
 static struct resource bfin_uart0_resources[] = {
         {
@@ -246,7 +246,7 @@ static struct platform_device bfin_uart0_device = {
 #endif
 #endif
 
-#if defined(CONFIG_MTD_NAND_PLATFORM) || defined(CONFIG_MTD_NAND_PLATFORM_MODULE)
+#if IS_ENABLED(CONFIG_MTD_NAND_PLATFORM)
 
 static struct mtd_partition bfin_plat_nand_partitions[] = {
         {
@@ -323,7 +323,7 @@ static void bfin_plat_nand_init(void)
 }
 #endif
 
-#if defined(CONFIG_MTD_DATAFLASH) || defined(CONFIG_MTD_DATAFLASH_MODULE)
+#if IS_ENABLED(CONFIG_MTD_DATAFLASH)
 static struct mtd_partition bfin_spi_dataflash_partitions[] = {
         {
          .name = "bootloader",
@@ -369,7 +369,7 @@ static struct bfin5xx_spi_chip data_flash_chip_info = {
 };
 #endif
 
-#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
+#if IS_ENABLED(CONFIG_SPI_BFIN5XX)
 /* SPI (0) */
 static struct resource bfin_spi0_resource[] = {
         [0] = {
@@ -408,7 +408,7 @@ static struct platform_device bfin_spi0_device = {
 #endif
 
 static struct spi_board_info bfin_spi_board_info[] __initdata = {
-#if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
+#if IS_ENABLED(CONFIG_SPI_SPIDEV)
         {
          .modalias = "spidev",
          .max_speed_hz = 3125000,       /* max spi clock (SCK) speed in HZ */
@@ -416,7 +416,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
          .chip_select = 3,
          },
 #endif
-#if defined(CONFIG_MTD_DATAFLASH) || defined(CONFIG_MTD_DATAFLASH_MODULE)
+#if IS_ENABLED(CONFIG_MTD_DATAFLASH)
         {                       /* DataFlash chip */
          .modalias = "mtd_dataflash",
          .max_speed_hz = 33250000,      /* max spi clock (SCK) speed in HZ */
@@ -472,11 +472,11 @@ static struct platform_device bfin_dpmc = {
 static struct platform_device *acvilon_devices[] __initdata = {
         &bfin_dpmc,
 
-#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
+#if IS_ENABLED(CONFIG_SPI_BFIN5XX)
         &bfin_spi0_device,
 #endif
 
-#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN)
 #ifdef CONFIG_SERIAL_BFIN_UART0
         &bfin_uart0_device,
 #endif
@@ -484,17 +484,17 @@ static struct platform_device *acvilon_devices[] __initdata = {
 
         &bfin_gpios_device,
 
-#if defined(CONFIG_SMSC911X) || defined(CONFIG_SMSC911X_MODULE)
+#if IS_ENABLED(CONFIG_SMSC911X)
         &smsc911x_device,
 #endif
 
         &bfin_i2c_pca_device,
 
-#if defined(CONFIG_MTD_NAND_PLATFORM) || defined(CONFIG_MTD_NAND_PLATFORM_MODULE)
+#if IS_ENABLED(CONFIG_MTD_NAND_PLATFORM)
         &bfin_async_nand_device,
 #endif
 
-#if defined(CONFIG_MTD_PLATRAM) || defined(CONFIG_MTD_PLATRAM_MODULE)
+#if IS_ENABLED(CONFIG_MTD_PLATRAM)
         &mtd_ram_device,
 #endif
 
diff --git a/arch/blackfin/mach-bf561/boards/cm_bf561.c b/arch/blackfin/mach-bf561/boards/cm_bf561.c
index d81450f635df..9f777df4cacc 100644
--- a/arch/blackfin/mach-bf561/boards/cm_bf561.c
+++ b/arch/blackfin/mach-bf561/boards/cm_bf561.c
@@ -13,7 +13,7 @@
 #include <linux/mtd/partitions.h>
 #include <linux/spi/spi.h>
 #include <linux/spi/flash.h>
-#if defined(CONFIG_USB_ISP1362_HCD) || defined(CONFIG_USB_ISP1362_HCD_MODULE)
+#if IS_ENABLED(CONFIG_USB_ISP1362_HCD)
 #include <linux/usb/isp1362.h>
 #endif
 #include <linux/ata_platform.h>
@@ -29,10 +29,10 @@
  */
 const char bfin_board_name[] = "Bluetechnix CM BF561";
 
-#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
+#if IS_ENABLED(CONFIG_SPI_BFIN5XX)
 /* all SPI peripherals info goes here */
 
-#if defined(CONFIG_MTD_M25P80) || defined(CONFIG_MTD_M25P80_MODULE)
+#if IS_ENABLED(CONFIG_MTD_M25P80)
 static struct mtd_partition bfin_spi_flash_partitions[] = {
         {
                 .name = "bootloader(spi)",
@@ -64,7 +64,7 @@ static struct bfin5xx_spi_chip spi_flash_chip_info = {
 #endif
 
 static struct spi_board_info bfin_spi_board_info[] __initdata = {
-#if defined(CONFIG_MTD_M25P80) || defined(CONFIG_MTD_M25P80_MODULE)
+#if IS_ENABLED(CONFIG_MTD_M25P80)
         {
                 /* the modalias must be the same as spi device driver name */
                 .modalias = "m25p80", /* Name of spi_driver for this device */
@@ -77,7 +77,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
         },
 #endif
 
-#if defined(CONFIG_SND_BF5XX_SOC_AD183X) || defined(CONFIG_SND_BF5XX_SOC_AD183X_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_SOC_AD183X)
         {
                 .modalias = "ad183x",
                 .max_speed_hz = 3125000,     /* max spi clock (SCK) speed in HZ */
@@ -85,7 +85,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .chip_select = 4,
         },
 #endif
-#if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
+#if IS_ENABLED(CONFIG_MMC_SPI)
         {
                 .modalias = "mmc_spi",
                 .max_speed_hz = 20000000,     /* max spi clock (SCK) speed in HZ */
@@ -134,14 +134,14 @@ static struct platform_device bfin_spi0_device = {
 #endif  /* spi master and devices */
 
 
-#if defined(CONFIG_FB_HITACHI_TX09) || defined(CONFIG_FB_HITACHI_TX09_MODULE)
+#if IS_ENABLED(CONFIG_FB_HITACHI_TX09)
 static struct platform_device hitachi_fb_device = {
         .name = "hitachi-tx09",
 };
 #endif
 
 
-#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
+#if IS_ENABLED(CONFIG_SMC91X)
 #include <linux/smc91x.h>
 
 static struct smc91x_platdata smc91x_info = {
@@ -173,7 +173,7 @@ static struct platform_device smc91x_device = {
 };
 #endif
 
-#if defined(CONFIG_SMSC911X) || defined(CONFIG_SMSC911X_MODULE)
+#if IS_ENABLED(CONFIG_SMSC911X)
 #include <linux/smsc911x.h>
 
 static struct resource smsc911x_resources[] = {
@@ -208,7 +208,7 @@ static struct platform_device smsc911x_device = {
 };
 #endif
 
-#if defined(CONFIG_USB_NET2272) || defined(CONFIG_USB_NET2272_MODULE)
+#if IS_ENABLED(CONFIG_USB_NET2272)
 static struct resource net2272_bfin_resources[] = {
         {
                 .start = 0x24000000,
@@ -229,7 +229,7 @@ static struct platform_device net2272_bfin_device = {
 };
 #endif
 
-#if defined(CONFIG_USB_ISP1362_HCD) || defined(CONFIG_USB_ISP1362_HCD_MODULE)
+#if IS_ENABLED(CONFIG_USB_ISP1362_HCD)
 static struct resource isp1362_hcd_resources[] = {
         {
                 .start = 0x24008000,
@@ -268,7 +268,7 @@ static struct platform_device isp1362_hcd_device = {
 };
 #endif
 
-#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN)
 #ifdef CONFIG_SERIAL_BFIN_UART0
 static struct resource bfin_uart0_resources[] = {
         {
@@ -319,7 +319,7 @@ static struct platform_device bfin_uart0_device = {
 #endif
 #endif
 
-#if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_SIR)
 #ifdef CONFIG_BFIN_SIR0
 static struct resource bfin_sir0_resources[] = {
         {
@@ -348,7 +348,7 @@ static struct platform_device bfin_sir0_device = {
 #endif
 #endif
 
-#if defined(CONFIG_PATA_PLATFORM) || defined(CONFIG_PATA_PLATFORM_MODULE)
+#if IS_ENABLED(CONFIG_PATA_PLATFORM)
 #define PATA_INT        IRQ_PF46
 
 static struct pata_platform_info bfin_pata_platform_data = {
@@ -385,7 +385,7 @@ static struct platform_device bfin_pata_device = {
 };
 #endif
 
-#if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
+#if IS_ENABLED(CONFIG_MTD_PHYSMAP)
 static struct mtd_partition para_partitions[] = {
         {
                 .name       = "bootloader(nor)",
@@ -456,54 +456,54 @@ static struct platform_device *cm_bf561_devices[] __initdata = {
 
         &bfin_dpmc,
 
-#if defined(CONFIG_FB_HITACHI_TX09) || defined(CONFIG_FB_HITACHI_TX09_MODULE)
+#if IS_ENABLED(CONFIG_FB_HITACHI_TX09)
         &hitachi_fb_device,
 #endif
 
-#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN)
 #ifdef CONFIG_SERIAL_BFIN_UART0
         &bfin_uart0_device,
 #endif
 #endif
 
-#if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_SIR)
 #ifdef CONFIG_BFIN_SIR0
         &bfin_sir0_device,
 #endif
 #endif
 
-#if defined(CONFIG_USB_ISP1362_HCD) || defined(CONFIG_USB_ISP1362_HCD_MODULE)
+#if IS_ENABLED(CONFIG_USB_ISP1362_HCD)
         &isp1362_hcd_device,
 #endif
 
-#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
+#if IS_ENABLED(CONFIG_SMC91X)
         &smc91x_device,
 #endif
 
-#if defined(CONFIG_SMSC911X) || defined(CONFIG_SMSC911X_MODULE)
+#if IS_ENABLED(CONFIG_SMSC911X)
         &smsc911x_device,
 #endif
 
-#if defined(CONFIG_USB_NET2272) || defined(CONFIG_USB_NET2272_MODULE)
+#if IS_ENABLED(CONFIG_USB_NET2272)
         &net2272_bfin_device,
 #endif
 
-#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
+#if IS_ENABLED(CONFIG_SPI_BFIN5XX)
         &bfin_spi0_device,
 #endif
 
-#if defined(CONFIG_PATA_PLATFORM) || defined(CONFIG_PATA_PLATFORM_MODULE)
+#if IS_ENABLED(CONFIG_PATA_PLATFORM)
         &bfin_pata_device,
 #endif
 
-#if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
+#if IS_ENABLED(CONFIG_MTD_PHYSMAP)
         &para_flash_device,
 #endif
 };
 
 static int __init net2272_init(void)
 {
-#if defined(CONFIG_USB_NET2272) || defined(CONFIG_USB_NET2272_MODULE)
+#if IS_ENABLED(CONFIG_USB_NET2272)
         int ret;
 
         ret = gpio_request(GPIO_PF46, "net2272");
@@ -523,11 +523,11 @@ static int __init cm_bf561_init(void)
 {
         printk(KERN_INFO "%s(): registering device resources\n", __func__);
         platform_add_devices(cm_bf561_devices, ARRAY_SIZE(cm_bf561_devices));
-#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
+#if IS_ENABLED(CONFIG_SPI_BFIN5XX)
         spi_register_board_info(bfin_spi_board_info, ARRAY_SIZE(bfin_spi_board_info));
 #endif
 
-#if defined(CONFIG_PATA_PLATFORM) || defined(CONFIG_PATA_PLATFORM_MODULE)
+#if IS_ENABLED(CONFIG_PATA_PLATFORM)
         irq_set_status_flags(PATA_INT, IRQ_NOAUTOEN);
 #endif
 
diff --git a/arch/blackfin/mach-bf561/boards/ezkit.c b/arch/blackfin/mach-bf561/boards/ezkit.c
index 92938e79b9e3..88dee43e7abe 100644
--- a/arch/blackfin/mach-bf561/boards/ezkit.c
+++ b/arch/blackfin/mach-bf561/boards/ezkit.c
@@ -25,7 +25,7 @@
  */
 const char bfin_board_name[] = "ADI BF561-EZKIT";
 
-#if defined(CONFIG_USB_ISP1760_HCD) || defined(CONFIG_USB_ISP1760_HCD_MODULE)
+#if IS_ENABLED(CONFIG_USB_ISP1760_HCD)
 #include <linux/usb/isp1760.h>
 static struct resource bfin_isp1760_resources[] = {
         [0] = {
@@ -60,7 +60,7 @@ static struct platform_device bfin_isp1760_device = {
 };
 #endif
 
-#if defined(CONFIG_USB_ISP1362_HCD) || defined(CONFIG_USB_ISP1362_HCD_MODULE)
+#if IS_ENABLED(CONFIG_USB_ISP1362_HCD)
 #include <linux/usb/isp1362.h>
 
 static struct resource isp1362_hcd_resources[] = {
@@ -101,7 +101,7 @@ static struct platform_device isp1362_hcd_device = {
 };
 #endif
 
-#if defined(CONFIG_USB_NET2272) || defined(CONFIG_USB_NET2272_MODULE)
+#if IS_ENABLED(CONFIG_USB_NET2272)
 static struct resource net2272_bfin_resources[] = {
         {
                 .start = 0x2C000000,
@@ -129,7 +129,7 @@ static struct platform_device net2272_bfin_device = {
  *  USB-LAN EzExtender board
  *  Driver needs to know address, irq and flag pin.
  */
-#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
+#if IS_ENABLED(CONFIG_SMC91X)
 #include <linux/smc91x.h>
 
 static struct smc91x_platdata smc91x_info = {
@@ -163,7 +163,7 @@ static struct platform_device smc91x_device = {
 };
 #endif
 
-#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN)
 #ifdef CONFIG_SERIAL_BFIN_UART0
 static struct resource bfin_uart0_resources[] = {
         {
@@ -214,7 +214,7 @@ static struct platform_device bfin_uart0_device = {
 #endif
 #endif
 
-#if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_SIR)
 #ifdef CONFIG_BFIN_SIR0
 static struct resource bfin_sir0_resources[] = {
         {
@@ -243,7 +243,7 @@ static struct platform_device bfin_sir0_device = {
 #endif
 #endif
 
-#if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
+#if IS_ENABLED(CONFIG_MTD_PHYSMAP)
 static struct mtd_partition ezkit_partitions[] = {
         {
                 .name       = "bootloader(nor)",
@@ -291,7 +291,7 @@ static struct platform_device ezkit_flash_device = {
 };
 #endif
 
-#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
+#if IS_ENABLED(CONFIG_SPI_BFIN5XX)
 /* SPI (0) */
 static struct resource bfin_spi0_resource[] = {
         [0] = {
@@ -330,8 +330,7 @@ static struct platform_device bfin_spi0_device = {
 #endif
 
 static struct spi_board_info bfin_spi_board_info[] __initdata = {
-#if defined(CONFIG_SND_BF5XX_SOC_AD183X) \
-        || defined(CONFIG_SND_BF5XX_SOC_AD183X_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_SOC_AD183X)
         {
                 .modalias = "ad183x",
                 .max_speed_hz = 3125000,     /* max spi clock (SCK) speed in HZ */
@@ -341,7 +340,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .mode = SPI_MODE_3,
         },
 #endif
-#if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
+#if IS_ENABLED(CONFIG_SPI_SPIDEV)
         {
                 .modalias = "spidev",
                 .max_speed_hz = 3125000,     /* max spi clock (SCK) speed in HZ */
@@ -351,7 +350,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
 #endif
 };
 
-#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
+#if IS_ENABLED(CONFIG_KEYBOARD_GPIO)
 #include <linux/input.h>
 #include <linux/gpio_keys.h>
 
@@ -375,7 +374,7 @@ static struct platform_device bfin_device_gpiokeys = {
 };
 #endif
 
-#if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE)
+#if IS_ENABLED(CONFIG_I2C_GPIO)
 #include <linux/i2c-gpio.h>
 
 static struct i2c_gpio_platform_data i2c_gpio_data = {
@@ -422,8 +421,7 @@ static struct platform_device bfin_dpmc = {
         },
 };
 
-#if defined(CONFIG_VIDEO_BLACKFIN_CAPTURE) \
-        || defined(CONFIG_VIDEO_BLACKFIN_CAPTURE_MODULE)
+#if IS_ENABLED(CONFIG_VIDEO_BLACKFIN_CAPTURE)
 #include <linux/videodev2.h>
 #include <media/blackfin/bfin_capture.h>
 #include <media/blackfin/ppi.h>
@@ -443,8 +441,7 @@ static const struct ppi_info ppi_info = {
         .pin_req = ppi_req,
 };
 
-#if defined(CONFIG_VIDEO_ADV7183) \
-        || defined(CONFIG_VIDEO_ADV7183_MODULE)
+#if IS_ENABLED(CONFIG_VIDEO_ADV7183)
 #include <media/adv7183.h>
 static struct v4l2_input adv7183_inputs[] = {
         {
@@ -515,7 +512,7 @@ static struct platform_device bfin_capture_device = {
 };
 #endif
 
-#if defined(CONFIG_SND_BF5XX_I2S) || defined(CONFIG_SND_BF5XX_I2S_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_I2S)
 static struct platform_device bfin_i2s = {
         .name = "bfin-i2s",
         .id = CONFIG_SND_BF5XX_SPORT_NUM,
@@ -523,7 +520,7 @@ static struct platform_device bfin_i2s = {
 };
 #endif
 
-#if defined(CONFIG_SND_BF5XX_AC97) || defined(CONFIG_SND_BF5XX_AC97_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_AC97)
 static struct platform_device bfin_ac97 = {
         .name = "bfin-ac97",
         .id = CONFIG_SND_BF5XX_SPORT_NUM,
@@ -531,8 +528,7 @@ static struct platform_device bfin_ac97 = {
 };
 #endif
 
-#if defined(CONFIG_SND_BF5XX_SOC_AD1836) \
-                || defined(CONFIG_SND_BF5XX_SOC_AD1836_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_SOC_AD1836)
 static const char * const ad1836_link[] = {
         "bfin-i2s.0",
         "spi0.4",
@@ -550,72 +546,70 @@ static struct platform_device *ezkit_devices[] __initdata = {
 
         &bfin_dpmc,
 
-#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
+#if IS_ENABLED(CONFIG_SMC91X)
         &smc91x_device,
 #endif
 
-#if defined(CONFIG_USB_NET2272) || defined(CONFIG_USB_NET2272_MODULE)
+#if IS_ENABLED(CONFIG_USB_NET2272)
         &net2272_bfin_device,
 #endif
 
-#if defined(CONFIG_USB_ISP1760_HCD) || defined(CONFIG_USB_ISP1760_HCD_MODULE)
+#if IS_ENABLED(CONFIG_USB_ISP1760_HCD)
         &bfin_isp1760_device,
 #endif
 
-#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
+#if IS_ENABLED(CONFIG_SPI_BFIN5XX)
         &bfin_spi0_device,
 #endif
 
-#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN)
 #ifdef CONFIG_SERIAL_BFIN_UART0
         &bfin_uart0_device,
 #endif
 #endif
 
-#if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_SIR)
 #ifdef CONFIG_BFIN_SIR0
         &bfin_sir0_device,
 #endif
 #endif
 
-#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
+#if IS_ENABLED(CONFIG_KEYBOARD_GPIO)
         &bfin_device_gpiokeys,
 #endif
 
-#if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE)
+#if IS_ENABLED(CONFIG_I2C_GPIO)
         &i2c_gpio_device,
 #endif
 
-#if defined(CONFIG_USB_ISP1362_HCD) || defined(CONFIG_USB_ISP1362_HCD_MODULE)
+#if IS_ENABLED(CONFIG_USB_ISP1362_HCD)
         &isp1362_hcd_device,
 #endif
 
-#if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
+#if IS_ENABLED(CONFIG_MTD_PHYSMAP)
         &ezkit_flash_device,
 #endif
 
-#if defined(CONFIG_VIDEO_BLACKFIN_CAPTURE) \
-        || defined(CONFIG_VIDEO_BLACKFIN_CAPTURE_MODULE)
+#if IS_ENABLED(CONFIG_VIDEO_BLACKFIN_CAPTURE)
         &bfin_capture_device,
 #endif
 
-#if defined(CONFIG_SND_BF5XX_I2S) || defined(CONFIG_SND_BF5XX_I2S_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_I2S)
         &bfin_i2s,
 #endif
 
-#if defined(CONFIG_SND_BF5XX_AC97) || defined(CONFIG_SND_BF5XX_AC97_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_AC97)
         &bfin_ac97,
 #endif
 
-#if defined(CONFIG_SND_BF5XX_SOC_AD1836) || \
-        defined(CONFIG_SND_BF5XX_SOC_AD1836_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_SOC_AD1836)
         &bfin_ad1836_machine,
 #endif
 };
 
 static int __init net2272_init(void)
 {
-#if defined(CONFIG_USB_NET2272) || defined(CONFIG_USB_NET2272_MODULE)
+#if IS_ENABLED(CONFIG_USB_NET2272)
         int ret;
 
         ret = gpio_request(GPIO_PF11, "net2272");
@@ -641,12 +635,12 @@ static int __init ezkit_init(void)
         if (ret < 0)
                 return ret;
 
-#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
+#if IS_ENABLED(CONFIG_SMC91X)
         bfin_write_FIO0_DIR(bfin_read_FIO0_DIR() | (1 << 12));
         SSYNC();
 #endif
 
-#if defined(CONFIG_SND_BF5XX_SOC_AD183X) || defined(CONFIG_SND_BF5XX_SOC_AD183X_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_SOC_AD183X)
         bfin_write_FIO0_DIR(bfin_read_FIO0_DIR() | (1 << 15));
         bfin_write_FIO0_FLAG_S(1 << 15);
         SSYNC();
diff --git a/arch/blackfin/mach-bf561/boards/tepla.c b/arch/blackfin/mach-bf561/boards/tepla.c
index 1a57bc986aad..f87b8cc0cd4c 100644
--- a/arch/blackfin/mach-bf561/boards/tepla.c
+++ b/arch/blackfin/mach-bf561/boards/tepla.c
@@ -42,7 +42,7 @@ static struct platform_device smc91x_device = {
         .resource      = smc91x_resources,
 };
 
-#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN)
 #ifdef CONFIG_SERIAL_BFIN_UART0
 static struct resource bfin_uart0_resources[] = {
         {
@@ -93,7 +93,7 @@ static struct platform_device bfin_uart0_device = {
 #endif
 #endif
 
-#if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_SIR)
 #ifdef CONFIG_BFIN_SIR0
 static struct resource bfin_sir0_resources[] = {
         {
@@ -125,13 +125,13 @@ static struct platform_device bfin_sir0_device = {
 static struct platform_device *tepla_devices[] __initdata = {
         &smc91x_device,
 
-#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN)
 #ifdef CONFIG_SERIAL_BFIN_UART0
         &bfin_uart0_device,
 #endif
 #endif
 
-#if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_SIR)
 #ifdef CONFIG_BFIN_SIR0
         &bfin_sir0_device,
 #endif
diff --git a/arch/blackfin/mach-bf609/boards/ezkit.c b/arch/blackfin/mach-bf609/boards/ezkit.c
index 8de8bc690b36..943f7e95ec15 100644
--- a/arch/blackfin/mach-bf609/boards/ezkit.c
+++ b/arch/blackfin/mach-bf609/boards/ezkit.c
@@ -39,7 +39,7 @@ const char bfin_board_name[] = "ADI BF609-EZKIT";
  *  Driver needs to know address, irq and flag pin.
  */
 
-#if defined(CONFIG_USB_ISP1760_HCD) || defined(CONFIG_USB_ISP1760_HCD_MODULE)
+#if IS_ENABLED(CONFIG_USB_ISP1760_HCD)
 #include <linux/usb/isp1760.h>
 static struct resource bfin_isp1760_resources[] = {
         [0] = {
@@ -74,7 +74,7 @@ static struct platform_device bfin_isp1760_device = {
 };
 #endif
 
-#if defined(CONFIG_INPUT_BFIN_ROTARY) || defined(CONFIG_INPUT_BFIN_ROTARY_MODULE)
+#if IS_ENABLED(CONFIG_INPUT_BFIN_ROTARY)
 #include <asm/bfin_rotary.h>
 
 static struct bfin_rotary_platform_data bfin_rotary_data = {
@@ -105,7 +105,7 @@ static struct platform_device bfin_rotary_device = {
 };
 #endif
 
-#if defined(CONFIG_STMMAC_ETH) || defined(CONFIG_STMMAC_ETH_MODULE)
+#if IS_ENABLED(CONFIG_STMMAC_ETH)
 #include <linux/stmmac.h>
 #include <linux/phy.h>
 
@@ -159,7 +159,7 @@ static struct platform_device bfin_eth_device = {
 };
 #endif
 
-#if defined(CONFIG_INPUT_ADXL34X) || defined(CONFIG_INPUT_ADXL34X_MODULE)
+#if IS_ENABLED(CONFIG_INPUT_ADXL34X)
 #include <linux/input/adxl34x.h>
 static const struct adxl34x_platform_data adxl34x_info = {
         .x_axis_offset = 0,
@@ -198,14 +198,14 @@ static const struct adxl34x_platform_data adxl34x_info = {
 };
 #endif
 
-#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_RTC_DRV_BFIN)
 static struct platform_device rtc_device = {
         .name = "rtc-bfin",
         .id   = -1,
 };
 #endif
 
-#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN)
 #ifdef CONFIG_SERIAL_BFIN_UART0
 static struct resource bfin_uart0_resources[] = {
         {
@@ -355,7 +355,7 @@ static struct platform_device bfin_uart1_device = {
 #endif
 #endif
 
-#if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_SIR)
 #ifdef CONFIG_BFIN_SIR0
 static struct resource bfin_sir0_resources[] = {
         {
@@ -408,7 +408,7 @@ static struct platform_device bfin_sir1_device = {
 #endif
 #endif
 
-#if defined(CONFIG_USB_MUSB_HDRC) || defined(CONFIG_USB_MUSB_HDRC_MODULE)
+#if IS_ENABLED(CONFIG_USB_MUSB_HDRC)
 static struct resource musb_resources[] = {
         [0] = {
                 .start  = 0xFFCC1000,
@@ -464,7 +464,7 @@ static struct platform_device musb_device = {
 };
 #endif
 
-#if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN_SPORT)
 #ifdef CONFIG_SERIAL_BFIN_SPORT0_UART
 static struct resource bfin_sport0_uart_resources[] = {
         {
@@ -569,7 +569,7 @@ static struct platform_device bfin_sport2_uart_device = {
 #endif
 #endif
 
-#if defined(CONFIG_CAN_BFIN) || defined(CONFIG_CAN_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_CAN_BFIN)
 
 static unsigned short bfin_can0_peripherals[] = {
         P_CAN0_RX, P_CAN0_TX, 0
@@ -610,7 +610,7 @@ static struct platform_device bfin_can0_device = {
 
 #endif
 
-#if defined(CONFIG_MTD_NAND_BF5XX) || defined(CONFIG_MTD_NAND_BF5XX_MODULE)
+#if IS_ENABLED(CONFIG_MTD_NAND_BF5XX)
 static struct mtd_partition partition_info[] = {
         {
                 .name = "bootloader(nand)",
@@ -660,7 +660,7 @@ static struct platform_device bfin_nand_device = {
 };
 #endif
 
-#if defined(CONFIG_SDH_BFIN) || defined(CONFIG_SDH_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_SDH_BFIN)
 
 static struct bfin_sd_host bfin_sdh_data = {
         .dma_chan = CH_RSI,
@@ -677,7 +677,7 @@ static struct platform_device bfin_sdh_device = {
 };
 #endif
 
-#if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
+#if IS_ENABLED(CONFIG_MTD_PHYSMAP)
 static struct mtd_partition ezkit_partitions[] = {
         {
                 .name       = "bootloader(nor)",
@@ -741,8 +741,7 @@ static struct platform_device ezkit_flash_device = {
 };
 #endif
 
-#if defined(CONFIG_MTD_M25P80) \
-        || defined(CONFIG_MTD_M25P80_MODULE)
+#if IS_ENABLED(CONFIG_MTD_M25P80)
 /* SPI flash chip (w25q32) */
 static struct mtd_partition bfin_spi_flash_partitions[] = {
         {
@@ -773,21 +772,20 @@ static struct bfin_spi3_chip spi_flash_chip_info = {
 };
 #endif
 
-#if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
+#if IS_ENABLED(CONFIG_SPI_SPIDEV)
 static struct bfin_spi3_chip spidev_chip_info = {
         .enable_dma = true,
 };
 #endif
 
-#if defined(CONFIG_SND_BF5XX_I2S) || defined(CONFIG_SND_BF5XX_I2S_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_I2S)
 static struct platform_device bfin_i2s_pcm = {
         .name = "bfin-i2s-pcm-audio",
         .id = -1,
 };
 #endif
 
-#if defined(CONFIG_SND_BF6XX_SOC_I2S) || \
-        defined(CONFIG_SND_BF6XX_SOC_I2S_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF6XX_SOC_I2S)
 #include <asm/bfin_sport3.h>
 static struct resource bfin_snd_resources[] = {
         {
@@ -841,8 +839,7 @@ static struct platform_device bfin_i2s = {
 };
 #endif
 
-#if defined(CONFIG_SND_BF5XX_SOC_AD1836) \
-                || defined(CONFIG_SND_BF5XX_SOC_AD1836_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_SOC_AD1836)
 static const char * const ad1836_link[] = {
         "bfin-i2s.0",
         "spi0.76",
@@ -856,14 +853,13 @@ static struct platform_device bfin_ad1836_machine = {
 };
 #endif
 
-#if defined(CONFIG_SND_SOC_BFIN_EVAL_ADAU1X61) || \
-        defined(CONFIG_SND_SOC_BFIN_EVAL_ADAU1X61_MODULE)
+#if IS_ENABLED(CONFIG_SND_SOC_BFIN_EVAL_ADAU1X61)
 static struct platform_device adau1761_device = {
         .name = "bfin-eval-adau1x61",
 };
 #endif
 
-#if defined(CONFIG_SND_SOC_ADAU1761) || defined(CONFIG_SND_SOC_ADAU1761_MODULE)
+#if IS_ENABLED(CONFIG_SND_SOC_ADAU1761)
 #include <sound/adau17x1.h>
 static struct adau1761_platform_data adau1761_info = {
         .lineout_mode = ADAU1761_OUTPUT_MODE_LINE,
@@ -871,8 +867,7 @@ static struct adau1761_platform_data adau1761_info = {
 };
 #endif
 
-#if defined(CONFIG_VIDEO_BLACKFIN_CAPTURE) \
-        || defined(CONFIG_VIDEO_BLACKFIN_CAPTURE_MODULE)
+#if IS_ENABLED(CONFIG_VIDEO_BLACKFIN_CAPTURE)
 #include <linux/videodev2.h>
 #include <media/blackfin/bfin_capture.h>
 #include <media/blackfin/ppi.h>
@@ -882,7 +877,7 @@ static const unsigned short ppi_req[] = {
         P_PPI0_D4, P_PPI0_D5, P_PPI0_D6, P_PPI0_D7,
         P_PPI0_D8, P_PPI0_D9, P_PPI0_D10, P_PPI0_D11,
         P_PPI0_D12, P_PPI0_D13, P_PPI0_D14, P_PPI0_D15,
-#if !defined(CONFIG_VIDEO_VS6624) && !defined(CONFIG_VIDEO_VS6624_MODULE)
+#if !IS_ENABLED(CONFIG_VIDEO_VS6624)
         P_PPI0_D16, P_PPI0_D17, P_PPI0_D18, P_PPI0_D19,
         P_PPI0_D20, P_PPI0_D21, P_PPI0_D22, P_PPI0_D23,
 #endif
@@ -898,8 +893,7 @@ static const struct ppi_info ppi_info = {
         .pin_req = ppi_req,
 };
 
-#if defined(CONFIG_VIDEO_VS6624) \
-        || defined(CONFIG_VIDEO_VS6624_MODULE)
+#if IS_ENABLED(CONFIG_VIDEO_VS6624)
 static struct v4l2_input vs6624_inputs[] = {
         {
                 .index = 0,
@@ -936,8 +930,7 @@ static struct bfin_capture_config bfin_capture_data = {
 };
 #endif
 
-#if defined(CONFIG_VIDEO_ADV7842) \
-        || defined(CONFIG_VIDEO_ADV7842_MODULE)
+#if IS_ENABLED(CONFIG_VIDEO_ADV7842)
 #include <media/adv7842.h>
 
 static struct v4l2_input adv7842_inputs[] = {
@@ -1067,8 +1060,7 @@ static struct platform_device bfin_capture_device = {
 };
 #endif
 
-#if defined(CONFIG_VIDEO_BLACKFIN_DISPLAY) \
-        || defined(CONFIG_VIDEO_BLACKFIN_DISPLAY_MODULE)
+#if IS_ENABLED(CONFIG_VIDEO_BLACKFIN_DISPLAY)
 #include <linux/videodev2.h>
 #include <media/blackfin/bfin_display.h>
 #include <media/blackfin/ppi.h>
@@ -1090,8 +1082,7 @@ static const struct ppi_info ppi_info = {
         .pin_req = ppi_req_disp,
 };
 
-#if defined(CONFIG_VIDEO_ADV7511) \
-        || defined(CONFIG_VIDEO_ADV7511_MODULE)
+#if IS_ENABLED(CONFIG_VIDEO_ADV7511)
 #include <media/adv7511.h>
 
 static struct v4l2_output adv7511_outputs[] = {
@@ -1313,7 +1304,7 @@ static struct platform_device bfin_crypto_crc_device = {
 };
 #endif
 
-#if defined(CONFIG_TOUCHSCREEN_AD7877) || defined(CONFIG_TOUCHSCREEN_AD7877_MODULE)
+#if IS_ENABLED(CONFIG_TOUCHSCREEN_AD7877)
 static const struct ad7877_platform_data bfin_ad7877_ts_info = {
         .model                  = 7877,
         .vref_delay_usecs       = 50,   /* internal, no capacitor */
@@ -1679,7 +1670,7 @@ static struct platform_device bfin_gpg_device = {
 
 #endif
 
-#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
+#if IS_ENABLED(CONFIG_KEYBOARD_GPIO)
 #include <linux/input.h>
 #include <linux/gpio_keys.h>
 
@@ -1702,8 +1693,7 @@ static struct platform_device bfin_device_gpiokeys = {
 #endif
 
 static struct spi_board_info bfin_spi_board_info[] __initdata = {
-#if defined(CONFIG_MTD_M25P80) \
-        || defined(CONFIG_MTD_M25P80_MODULE)
+#if IS_ENABLED(CONFIG_MTD_M25P80)
         {
                 /* the modalias must be the same as spi device driver name */
                 .modalias = "m25p80", /* Name of spi_driver for this device */
@@ -1715,7 +1705,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .mode = SPI_MODE_3,
         },
 #endif
-#if defined(CONFIG_TOUCHSCREEN_AD7877) || defined(CONFIG_TOUCHSCREEN_AD7877_MODULE)
+#if IS_ENABLED(CONFIG_TOUCHSCREEN_AD7877)
         {
                 .modalias               = "ad7877",
                 .platform_data          = &bfin_ad7877_ts_info,
@@ -1725,7 +1715,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .chip_select            = MAX_CTRL_CS + GPIO_PC15, /* SPI_SSEL4 */
         },
 #endif
-#if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
+#if IS_ENABLED(CONFIG_SPI_SPIDEV)
         {
                 .modalias = "spidev",
                 .max_speed_hz = 3125000,     /* max spi clock (SCK) speed in HZ */
@@ -1734,7 +1724,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .controller_data = &spidev_chip_info,
         },
 #endif
-#if defined(CONFIG_INPUT_ADXL34X_SPI) || defined(CONFIG_INPUT_ADXL34X_SPI_MODULE)
+#if IS_ENABLED(CONFIG_INPUT_ADXL34X_SPI)
         {
                 .modalias               = "adxl34x",
                 .platform_data          = &adxl34x_info,
@@ -1818,7 +1808,7 @@ static struct platform_device bf60x_spi_master1 = {
 };
 #endif  /* spi master and devices */
 
-#if defined(CONFIG_I2C_BLACKFIN_TWI) || defined(CONFIG_I2C_BLACKFIN_TWI_MODULE)
+#if IS_ENABLED(CONFIG_I2C_BLACKFIN_TWI)
 static const u16 bfin_twi0_pins[] = {P_TWI0_SCL, P_TWI0_SDA, 0};
 
 static struct resource bfin_twi0_resource[] = {
@@ -1871,20 +1861,20 @@ static struct platform_device i2c_bfin_twi1_device = {
 #endif
 
 static struct i2c_board_info __initdata bfin_i2c_board_info0[] = {
-#if defined(CONFIG_INPUT_ADXL34X_I2C) || defined(CONFIG_INPUT_ADXL34X_I2C_MODULE)
+#if IS_ENABLED(CONFIG_INPUT_ADXL34X_I2C)
         {
                 I2C_BOARD_INFO("adxl34x", 0x53),
                 .irq = IRQ_PC5,
                 .platform_data = (void *)&adxl34x_info,
         },
 #endif
-#if defined(CONFIG_SND_SOC_ADAU1761) || defined(CONFIG_SND_SOC_ADAU1761_MODULE)
+#if IS_ENABLED(CONFIG_SND_SOC_ADAU1761)
         {
                 I2C_BOARD_INFO("adau1761", 0x38),
                 .platform_data = (void *)&adau1761_info
         },
 #endif
-#if defined(CONFIG_SND_SOC_SSM2602) || defined(CONFIG_SND_SOC_SSM2602_MODULE)
+#if IS_ENABLED(CONFIG_SND_SOC_SSM2602)
         {
                 I2C_BOARD_INFO("ssm2602", 0x1b),
         },
@@ -1942,11 +1932,11 @@ static struct platform_device *ezkit_devices[] __initdata = {
         &bfin_gpg_device,
 #endif
 
-#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_RTC_DRV_BFIN)
         &rtc_device,
 #endif
 
-#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN)
 #ifdef CONFIG_SERIAL_BFIN_UART0
         &bfin_uart0_device,
 #endif
@@ -1955,7 +1945,7 @@ static struct platform_device *ezkit_devices[] __initdata = {
 #endif
 #endif
 
-#if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
+#if IS_ENABLED(CONFIG_BFIN_SIR)
 #ifdef CONFIG_BFIN_SIR0
         &bfin_sir0_device,
 #endif
@@ -1964,19 +1954,19 @@ static struct platform_device *ezkit_devices[] __initdata = {
 #endif
 #endif
 
-#if defined(CONFIG_STMMAC_ETH) || defined(CONFIG_STMMAC_ETH_MODULE)
+#if IS_ENABLED(CONFIG_STMMAC_ETH)
         &bfin_eth_device,
 #endif
 
-#if defined(CONFIG_USB_MUSB_HDRC) || defined(CONFIG_USB_MUSB_HDRC_MODULE)
+#if IS_ENABLED(CONFIG_USB_MUSB_HDRC)
         &musb_device,
 #endif
 
-#if defined(CONFIG_USB_ISP1760_HCD) || defined(CONFIG_USB_ISP1760_HCD_MODULE)
+#if IS_ENABLED(CONFIG_USB_ISP1760_HCD)
         &bfin_isp1760_device,
 #endif
 
-#if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
+#if IS_ENABLED(CONFIG_SERIAL_BFIN_SPORT)
 #ifdef CONFIG_SERIAL_BFIN_SPORT0_UART
         &bfin_sport0_uart_device,
 #endif
@@ -1988,15 +1978,15 @@ static struct platform_device *ezkit_devices[] __initdata = {
 #endif
 #endif
 
-#if defined(CONFIG_CAN_BFIN) || defined(CONFIG_CAN_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_CAN_BFIN)
         &bfin_can0_device,
 #endif
 
-#if defined(CONFIG_MTD_NAND_BF5XX) || defined(CONFIG_MTD_NAND_BF5XX_MODULE)
+#if IS_ENABLED(CONFIG_MTD_NAND_BF5XX)
         &bfin_nand_device,
 #endif
 
-#if defined(CONFIG_SDH_BFIN) || defined(CONFIG_SDH_BFIN_MODULE)
+#if IS_ENABLED(CONFIG_SDH_BFIN)
         &bfin_sdh_device,
 #endif
 
@@ -2005,11 +1995,11 @@ static struct platform_device *ezkit_devices[] __initdata = {
         &bf60x_spi_master1,
 #endif
 
-#if defined(CONFIG_INPUT_BFIN_ROTARY) || defined(CONFIG_INPUT_BFIN_ROTARY_MODULE)
+#if IS_ENABLED(CONFIG_INPUT_BFIN_ROTARY)
         &bfin_rotary_device,
 #endif
 
-#if defined(CONFIG_I2C_BLACKFIN_TWI) || defined(CONFIG_I2C_BLACKFIN_TWI_MODULE)
+#if IS_ENABLED(CONFIG_I2C_BLACKFIN_TWI)
         &i2c_bfin_twi0_device,
 #if !defined(CONFIG_BF542)
         &i2c_bfin_twi1_device,
@@ -2024,34 +2014,29 @@ static struct platform_device *ezkit_devices[] __initdata = {
         &bfin_crypto_crc_device,
 #endif
 
-#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
+#if IS_ENABLED(CONFIG_KEYBOARD_GPIO)
         &bfin_device_gpiokeys,
 #endif
 
-#if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
+#if IS_ENABLED(CONFIG_MTD_PHYSMAP)
         &ezkit_flash_device,
 #endif
-#if defined(CONFIG_SND_BF5XX_I2S) || defined(CONFIG_SND_BF5XX_I2S_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_I2S)
         &bfin_i2s_pcm,
 #endif
-#if defined(CONFIG_SND_BF6XX_SOC_I2S) || \
-        defined(CONFIG_SND_BF6XX_SOC_I2S_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF6XX_SOC_I2S)
         &bfin_i2s,
 #endif
-#if defined(CONFIG_SND_BF5XX_SOC_AD1836) || \
-        defined(CONFIG_SND_BF5XX_SOC_AD1836_MODULE)
+#if IS_ENABLED(CONFIG_SND_BF5XX_SOC_AD1836)
         &bfin_ad1836_machine,
 #endif
-#if defined(CONFIG_SND_SOC_BFIN_EVAL_ADAU1X61) || \
-        defined(CONFIG_SND_SOC_BFIN_EVAL_ADAU1X61_MODULE)
+#if IS_ENABLED(CONFIG_SND_SOC_BFIN_EVAL_ADAU1X61)
         &adau1761_device,
 #endif
-#if defined(CONFIG_VIDEO_BLACKFIN_CAPTURE) \
-        || defined(CONFIG_VIDEO_BLACKFIN_CAPTURE_MODULE)
+#if IS_ENABLED(CONFIG_VIDEO_BLACKFIN_CAPTURE)
         &bfin_capture_device,
 #endif
-#if defined(CONFIG_VIDEO_BLACKFIN_DISPLAY) \
-        || defined(CONFIG_VIDEO_BLACKFIN_DISPLAY_MODULE)
+#if IS_ENABLED(CONFIG_VIDEO_BLACKFIN_DISPLAY)
         &bfin_display_device,
 #endif
 
@@ -2075,9 +2060,9 @@ static struct pinctrl_map __initdata bfin_pinmux_map[] = {
         PIN_MAP_MUX_GROUP_DEFAULT("physmap-flash.0",  "pinctrl-adi2.0", NULL, "smc0"),
         PIN_MAP_MUX_GROUP_DEFAULT("bf609_nl8048.2",  "pinctrl-adi2.0", NULL, "ppi2_16b"),
         PIN_MAP_MUX_GROUP_DEFAULT("bfin_display.0",  "pinctrl-adi2.0", NULL, "ppi0_16b"),
-#if defined(CONFIG_VIDEO_MT9M114) || defined(CONFIG_VIDEO_MT9M114_MODULE)
+#if IS_ENABLED(CONFIG_VIDEO_MT9M114)
         PIN_MAP_MUX_GROUP_DEFAULT("bfin_capture.0",  "pinctrl-adi2.0", NULL, "ppi0_8b"),
-#elif defined(CONFIG_VIDEO_VS6624) || defined(CONFIG_VIDEO_VS6624_MODULE)
+#elif IS_ENABLED(CONFIG_VIDEO_VS6624)
         PIN_MAP_MUX_GROUP_DEFAULT("bfin_capture.0",  "pinctrl-adi2.0", NULL, "ppi0_16b"),
 #else
         PIN_MAP_MUX_GROUP_DEFAULT("bfin_capture.0",  "pinctrl-adi2.0", NULL, "ppi0_24b"),
diff --git a/arch/blackfin/mach-bf609/clock.c b/arch/blackfin/mach-bf609/clock.c
index 13644ed25489..56200f37cfc8 100644
--- a/arch/blackfin/mach-bf609/clock.c
+++ b/arch/blackfin/mach-bf609/clock.c
@@ -73,24 +73,6 @@ static void clk_reg_write_mask(u32 reg, uint32_t val, uint32_t mask)
         bfin_write32(reg, val2);
 }
 
-static void clk_reg_set_bits(u32 reg, uint32_t mask)
-{
-        u32 val;
-
-        val = bfin_read32(reg);
-        val |= mask;
-        bfin_write32(reg, val);
-}
-
-static void clk_reg_clear_bits(u32 reg, uint32_t mask)
-{
-        u32 val;
-
-        val = bfin_read32(reg);
-        val &= ~mask;
-        bfin_write32(reg, val);
-}
-
 int wait_for_pll_align(void)
 {
         int i = 10000;
diff --git a/arch/blackfin/mach-bf609/pm.c b/arch/blackfin/mach-bf609/pm.c
index ad505d9db4a8..0cdd6955c7be 100644
--- a/arch/blackfin/mach-bf609/pm.c
+++ b/arch/blackfin/mach-bf609/pm.c
@@ -210,7 +210,7 @@ void bf609_cpu_pm_enter(suspend_state_t state)
 
 #ifdef CONFIG_PM_BFIN_WAKE_PB15
         wakeup |= PB15WE;
-# if CONFIG_PM_BFIN_WAKE_PA15_POL
+# if CONFIG_PM_BFIN_WAKE_PB15_POL
         wakeup_pol |= PB15WE;
 # endif
 #endif
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index 1325c3bc58e1..12c3afee0f6f 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -45,6 +45,7 @@ config IA64
         select HAVE_MOD_ARCH_SPECIFIC
         select MODULES_USE_ELF_RELA
         select ARCH_USE_CMPXCHG_LOCKREF
+        select HAVE_ARCH_AUDITSYSCALL
         default y
         help
           The Itanium Processor Family is Intel's 64-bit successor to
diff --git a/arch/mips/include/asm/syscall.h b/arch/mips/include/asm/syscall.h
index 6c488c85d791..c6e9cd2bca8d 100644
--- a/arch/mips/include/asm/syscall.h
+++ b/arch/mips/include/asm/syscall.h
@@ -14,7 +14,7 @@
 #define __ASM_MIPS_SYSCALL_H
 
 #include <linux/compiler.h>
-#include <linux/audit.h>
+#include <uapi/linux/audit.h>
 #include <linux/elf-em.h>
 #include <linux/kernel.h>
 #include <linux/sched.h>
@@ -127,12 +127,11 @@ extern const unsigned long sys_call_table[];
 extern const unsigned long sys32_call_table[];
 extern const unsigned long sysn32_call_table[];
 
-static inline int syscall_get_arch(struct task_struct *task,
-                                   struct pt_regs *regs)
+static inline int syscall_get_arch(void)
 {
         int arch = EM_MIPS;
 #ifdef CONFIG_64BIT
-        if (!test_tsk_thread_flag(task, TIF_32BIT_REGS))
+        if (!test_thread_flag(TIF_32BIT_REGS))
                 arch |= __AUDIT_ARCH_64BIT;
 #endif
 #if defined(__LITTLE_ENDIAN)
diff --git a/arch/mips/kernel/ptrace.c b/arch/mips/kernel/ptrace.c
index 7271e5a83081..71f85f427034 100644
--- a/arch/mips/kernel/ptrace.c
+++ b/arch/mips/kernel/ptrace.c
@@ -649,7 +649,7 @@ asmlinkage long syscall_trace_enter(struct pt_regs *regs, long syscall)
         if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
                 trace_sys_enter(regs, regs->regs[2]);
 
-        audit_syscall_entry(syscall_get_arch(current, regs),
+        audit_syscall_entry(syscall_get_arch(),
                             syscall,
                             regs->regs[4], regs->regs[5],
                             regs->regs[6], regs->regs[7]);
diff --git a/arch/mn10300/include/asm/highmem.h b/arch/mn10300/include/asm/highmem.h
index 7c137cd8aa37..2fbbe4d920aa 100644
--- a/arch/mn10300/include/asm/highmem.h
+++ b/arch/mn10300/include/asm/highmem.h
@@ -70,7 +70,7 @@ static inline void kunmap(struct page *page)
  * be used in IRQ contexts, so in some (very limited) cases we need
  * it.
  */
-static inline unsigned long kmap_atomic(struct page *page)
+static inline void *kmap_atomic(struct page *page)
 {
         unsigned long vaddr;
         int idx, type;
@@ -89,7 +89,7 @@ static inline unsigned long kmap_atomic(struct page *page)
         set_pte(kmap_pte - idx, mk_pte(page, kmap_prot));
         local_flush_tlb_one(vaddr);
 
-        return vaddr;
+        return (void *)vaddr;
 }
 
 static inline void __kunmap_atomic(unsigned long vaddr)
diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index bb2a8ec440e7..1faefed32749 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -28,6 +28,7 @@ config PARISC
         select CLONE_BACKWARDS
         select TTY # Needed for pdc_cons.c
         select HAVE_DEBUG_STACKOVERFLOW
+        select HAVE_ARCH_AUDITSYSCALL
 
         help
           The PA-RISC microprocessor is designed by Hewlett-Packard and used
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 6c03a94991ad..e0998997943b 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -144,6 +144,7 @@ config PPC
         select HAVE_DEBUG_STACKOVERFLOW
         select HAVE_IRQ_EXIT_ON_IRQ_STACK
         select ARCH_USE_CMPXCHG_LOCKREF if PPC64
+        select HAVE_ARCH_AUDITSYSCALL
 
 config GENERIC_CSUM
         def_bool CPU_LITTLE_ENDIAN
diff --git a/arch/powerpc/configs/ppc6xx_defconfig b/arch/powerpc/configs/ppc6xx_defconfig
index c2353bf059fd..175a8b99c196 100644
--- a/arch/powerpc/configs/ppc6xx_defconfig
+++ b/arch/powerpc/configs/ppc6xx_defconfig
@@ -1244,7 +1244,6 @@ CONFIG_DEBUG_SPINLOCK_SLEEP=y
 CONFIG_DEBUG_HIGHMEM=y
 CONFIG_DEBUG_INFO=y
 CONFIG_DEBUG_VM=y
-CONFIG_DEBUG_WRITECOUNT=y
 CONFIG_DEBUG_LIST=y
 CONFIG_DEBUG_SG=y
 # CONFIG_RCU_CPU_STALL_DETECTOR is not set
diff --git a/arch/powerpc/configs/ps3_defconfig b/arch/powerpc/configs/ps3_defconfig
index 139a8308070c..fdee37fab81c 100644
--- a/arch/powerpc/configs/ps3_defconfig
+++ b/arch/powerpc/configs/ps3_defconfig
@@ -174,7 +174,6 @@ CONFIG_DETECT_HUNG_TASK=y
 CONFIG_PROVE_LOCKING=y
 CONFIG_DEBUG_LOCKDEP=y
 CONFIG_DEBUG_INFO=y
-CONFIG_DEBUG_WRITECOUNT=y
 CONFIG_DEBUG_MEMORY_INIT=y
 CONFIG_DEBUG_LIST=y
 CONFIG_RCU_CPU_STALL_TIMEOUT=60
diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c
index 3d7a50a08f5e..fbe24377eda3 100644
--- a/arch/powerpc/kernel/setup_64.c
+++ b/arch/powerpc/kernel/setup_64.c
@@ -201,7 +201,8 @@ static void cpu_ready_for_interrupts(void)
         get_paca()->kernel_msr = MSR_KERNEL;
 
         /* Enable AIL if supported */
-        if (cpu_has_feature(CPU_FTR_ARCH_207S)) {
+        if (cpu_has_feature(CPU_FTR_HVMODE) &&
+            cpu_has_feature(CPU_FTR_ARCH_207S)) {
                 unsigned long lpcr = mfspr(SPRN_LPCR);
                 mtspr(SPRN_LPCR, lpcr | LPCR_AIL_3);
         }
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 346d21678ffd..d68fe34799b0 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -103,6 +103,7 @@ config S390
         select GENERIC_SMP_IDLE_THREAD
         select GENERIC_TIME_VSYSCALL
         select HAVE_ALIGNED_STRUCT_PAGE if SLUB
+        select HAVE_ARCH_AUDITSYSCALL
         select HAVE_ARCH_JUMP_LABEL if !MARCH_G5
         select HAVE_ARCH_SECCOMP_FILTER
         select HAVE_ARCH_TRACEHOOK
diff --git a/arch/s390/configs/default_defconfig b/arch/s390/configs/default_defconfig
index ddaae2f5c913..8df022c43af7 100644
--- a/arch/s390/configs/default_defconfig
+++ b/arch/s390/configs/default_defconfig
@@ -581,7 +581,6 @@ CONFIG_LOCK_STAT=y
 CONFIG_DEBUG_LOCKDEP=y
 CONFIG_DEBUG_ATOMIC_SLEEP=y
 CONFIG_DEBUG_LOCKING_API_SELFTESTS=y
-CONFIG_DEBUG_WRITECOUNT=y
 CONFIG_DEBUG_LIST=y
 CONFIG_DEBUG_SG=y
 CONFIG_DEBUG_NOTIFIERS=y
diff --git a/arch/s390/include/asm/syscall.h b/arch/s390/include/asm/syscall.h
index cd29d2f4e4f3..777687055e7b 100644
--- a/arch/s390/include/asm/syscall.h
+++ b/arch/s390/include/asm/syscall.h
@@ -12,7 +12,7 @@
 #ifndef _ASM_SYSCALL_H
 #define _ASM_SYSCALL_H  1
 
-#include <linux/audit.h>
+#include <uapi/linux/audit.h>
 #include <linux/sched.h>
 #include <linux/err.h>
 #include <asm/ptrace.h>
@@ -89,11 +89,10 @@ static inline void syscall_set_arguments(struct task_struct *task,
                 regs->orig_gpr2 = args[0];
 }
 
-static inline int syscall_get_arch(struct task_struct *task,
-                                   struct pt_regs *regs)
+static inline int syscall_get_arch(void)
 {
 #ifdef CONFIG_COMPAT
-        if (test_tsk_thread_flag(task, TIF_31BIT))
+        if (test_tsk_thread_flag(current, TIF_31BIT))
                 return AUDIT_ARCH_S390;
 #endif
         return sizeof(long) == 8 ? AUDIT_ARCH_S390X : AUDIT_ARCH_S390;
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index ba55e939a820..834b67c4db5a 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -42,6 +42,7 @@ config SUPERH
         select MODULES_USE_ELF_RELA
         select OLD_SIGSUSPEND
         select OLD_SIGACTION
+        select HAVE_ARCH_AUDITSYSCALL
         help
           The SuperH is a RISC processor targeted for use in embedded systems
           and consumer electronics; it was also used in the Sega Dreamcast
diff --git a/arch/sh/configs/rsk7203_defconfig b/arch/sh/configs/rsk7203_defconfig
index 4e5229b0c5bb..47236573db83 100644
--- a/arch/sh/configs/rsk7203_defconfig
+++ b/arch/sh/configs/rsk7203_defconfig
@@ -128,7 +128,6 @@ CONFIG_DEBUG_MUTEXES=y
 CONFIG_DEBUG_SPINLOCK_SLEEP=y
 CONFIG_DEBUG_INFO=y
 CONFIG_DEBUG_VM=y
-CONFIG_DEBUG_WRITECOUNT=y
 CONFIG_DEBUG_LIST=y
 CONFIG_DEBUG_SG=y
 CONFIG_FRAME_POINTER=y
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index 7d8b7e94b93b..29f2e988c56a 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -77,6 +77,7 @@ config SPARC64
         select ARCH_HAVE_NMI_SAFE_CMPXCHG
         select HAVE_C_RECORDMCOUNT
         select NO_BOOTMEM
+        select HAVE_ARCH_AUDITSYSCALL
 
 config ARCH_DEFCONFIG
         string
diff --git a/arch/um/Kconfig.common b/arch/um/Kconfig.common
index 21ca44c4f6d5..6915d28cf118 100644
--- a/arch/um/Kconfig.common
+++ b/arch/um/Kconfig.common
@@ -1,6 +1,7 @@
 config UML
         bool
         default y
+        select HAVE_ARCH_AUDITSYSCALL
         select HAVE_UID16
         select GENERIC_IRQ_SHOW
         select GENERIC_CPU_DEVICES
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 5b8ec0f53b57..25d2c6f7325e 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -129,6 +129,7 @@ config X86
         select HAVE_IRQ_EXIT_ON_IRQ_STACK if X86_64
         select HAVE_CC_STACKPROTECTOR
         select GENERIC_CPU_AUTOPROBE
+        select HAVE_ARCH_AUDITSYSCALL
 
 config INSTRUCTION_DECODER
         def_bool y
diff --git a/arch/x86/Makefile b/arch/x86/Makefile
index 0db89106854e..d1b7c377a234 100644
--- a/arch/x86/Makefile
+++ b/arch/x86/Makefile
@@ -108,7 +108,7 @@ else
 
         # this works around some issues with generating unwind tables in older gccs
         # newer gccs do it by default
-        KBUILD_CFLAGS += -maccumulate-outgoing-args
+        KBUILD_CFLAGS += $(call cc-option,-maccumulate-outgoing-args)
 endif
 
 # Make sure compiler does not have buggy stack-protector support.
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index fcaf9c961265..7de069afb382 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -60,7 +60,7 @@
                           | X86_CR4_PSE | X86_CR4_PAE | X86_CR4_MCE     \
                           | X86_CR4_PGE | X86_CR4_PCE | X86_CR4_OSFXSR | X86_CR4_PCIDE \
                           | X86_CR4_OSXSAVE | X86_CR4_SMEP | X86_CR4_FSGSBASE \
-                          | X86_CR4_OSXMMEXCPT | X86_CR4_VMXE))
+                          | X86_CR4_OSXMMEXCPT | X86_CR4_VMXE | X86_CR4_SMAP))
 
 #define CR8_RESERVED_BITS (~(unsigned long)X86_CR8_TPR)
 
diff --git a/arch/x86/include/asm/syscall.h b/arch/x86/include/asm/syscall.h
index aea284b41312..d6a756ae04c8 100644
--- a/arch/x86/include/asm/syscall.h
+++ b/arch/x86/include/asm/syscall.h
@@ -13,7 +13,7 @@
 #ifndef _ASM_X86_SYSCALL_H
 #define _ASM_X86_SYSCALL_H
 
-#include <linux/audit.h>
+#include <uapi/linux/audit.h>
 #include <linux/sched.h>
 #include <linux/err.h>
 #include <asm/asm-offsets.h>    /* For NR_syscalls */
@@ -91,8 +91,7 @@ static inline void syscall_set_arguments(struct task_struct *task,
         memcpy(&regs->bx + i, args, n * sizeof(args[0]));
 }
 
-static inline int syscall_get_arch(struct task_struct *task,
-                                   struct pt_regs *regs)
+static inline int syscall_get_arch(void)
 {
         return AUDIT_ARCH_I386;
 }
@@ -221,8 +220,7 @@ static inline void syscall_set_arguments(struct task_struct *task,
                 }
 }
 
-static inline int syscall_get_arch(struct task_struct *task,
-                                   struct pt_regs *regs)
+static inline int syscall_get_arch(void)
 {
 #ifdef CONFIG_IA32_EMULATION
         /*
@@ -234,7 +232,7 @@ static inline int syscall_get_arch(struct task_struct *task,
          *
          * x32 tasks should be considered AUDIT_ARCH_X86_64.
          */
-        if (task_thread_info(task)->status & TS_COMPAT)
+        if (task_thread_info(current)->status & TS_COMPAT)
                 return AUDIT_ARCH_I386;
 #endif
         /* Both x32 and x86_64 are considered "64-bit". */
diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c
index bea60671ef8a..f47a104a749c 100644
--- a/arch/x86/kvm/cpuid.c
+++ b/arch/x86/kvm/cpuid.c
@@ -308,7 +308,7 @@ static inline int __do_cpuid_ent(struct kvm_cpuid_entry2 *entry, u32 function,
         const u32 kvm_supported_word9_x86_features =
                 F(FSGSBASE) | F(BMI1) | F(HLE) | F(AVX2) | F(SMEP) |
                 F(BMI2) | F(ERMS) | f_invpcid | F(RTM) | f_mpx | F(RDSEED) |
-                F(ADX);
+                F(ADX) | F(SMAP);
 
         /* all calls to cpuid_count() should be made on the same cpu */
         get_cpu();
diff --git a/arch/x86/kvm/cpuid.h b/arch/x86/kvm/cpuid.h
index a2a1bb7ed8c1..eeecbed26ac7 100644
--- a/arch/x86/kvm/cpuid.h
+++ b/arch/x86/kvm/cpuid.h
@@ -48,6 +48,14 @@ static inline bool guest_cpuid_has_smep(struct kvm_vcpu *vcpu)
         return best && (best->ebx & bit(X86_FEATURE_SMEP));
 }
 
+static inline bool guest_cpuid_has_smap(struct kvm_vcpu *vcpu)
+{
+        struct kvm_cpuid_entry2 *best;
+
+        best = kvm_find_cpuid_entry(vcpu, 7, 0);
+        return best && (best->ebx & bit(X86_FEATURE_SMAP));
+}
+
 static inline bool guest_cpuid_has_fsgsbase(struct kvm_vcpu *vcpu)
 {
         struct kvm_cpuid_entry2 *best;
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index f5704d9e5ddc..813d31038b93 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -3601,20 +3601,27 @@ static void reset_rsvds_bits_mask_ept(struct kvm_vcpu *vcpu,
         }
 }
 
-static void update_permission_bitmask(struct kvm_vcpu *vcpu,
+void update_permission_bitmask(struct kvm_vcpu *vcpu,
                 struct kvm_mmu *mmu, bool ept)
 {
         unsigned bit, byte, pfec;
         u8 map;
-        bool fault, x, w, u, wf, uf, ff, smep;
+        bool fault, x, w, u, wf, uf, ff, smapf, cr4_smap, cr4_smep, smap = 0;
 
-        smep = kvm_read_cr4_bits(vcpu, X86_CR4_SMEP);
+        cr4_smep = kvm_read_cr4_bits(vcpu, X86_CR4_SMEP);
+        cr4_smap = kvm_read_cr4_bits(vcpu, X86_CR4_SMAP);
         for (byte = 0; byte < ARRAY_SIZE(mmu->permissions); ++byte) {
                 pfec = byte << 1;
                 map = 0;
                 wf = pfec & PFERR_WRITE_MASK;
                 uf = pfec & PFERR_USER_MASK;
                 ff = pfec & PFERR_FETCH_MASK;
+                /*
+                 * PFERR_RSVD_MASK bit is set in PFEC if the access is not
+                 * subject to SMAP restrictions, and cleared otherwise. The
+                 * bit is only meaningful if the SMAP bit is set in CR4.
+                 */
+                smapf = !(pfec & PFERR_RSVD_MASK);
                 for (bit = 0; bit < 8; ++bit) {
                         x = bit & ACC_EXEC_MASK;
                         w = bit & ACC_WRITE_MASK;
@@ -3626,12 +3633,33 @@ static void update_permission_bitmask(struct kvm_vcpu *vcpu,
                                 /* Allow supervisor writes if !cr0.wp */
                                 w |= !is_write_protection(vcpu) && !uf;
                                 /* Disallow supervisor fetches of user code if cr4.smep */
-                                x &= !(smep && u && !uf);
+                                x &= !(cr4_smep && u && !uf);
+
+                                /*
+                                 * SMAP:kernel-mode data accesses from user-mode
+                                 * mappings should fault. A fault is considered
+                                 * as a SMAP violation if all of the following
+                                 * conditions are ture:
+                                 *   - X86_CR4_SMAP is set in CR4
+                                 *   - An user page is accessed
+                                 *   - Page fault in kernel mode
+                                 *   - if CPL = 3 or X86_EFLAGS_AC is clear
+                                 *
+                                 *   Here, we cover the first three conditions.
+                                 *   The fourth is computed dynamically in
+                                 *   permission_fault() and is in smapf.
+                                 *
+                                 *   Also, SMAP does not affect instruction
+                                 *   fetches, add the !ff check here to make it
+                                 *   clearer.
+                                 */
+                                smap = cr4_smap && u && !uf && !ff;
                         } else
                                 /* Not really needed: no U/S accesses on ept  */
                                 u = 1;
 
-                        fault = (ff && !x) || (uf && !u) || (wf && !w);
+                        fault = (ff && !x) || (uf && !u) || (wf && !w) ||
+                                (smapf && smap);
                         map |= fault << bit;
                 }
                 mmu->permissions[byte] = map;
diff --git a/arch/x86/kvm/mmu.h b/arch/x86/kvm/mmu.h
index 292615274358..3842e70bdb7c 100644
--- a/arch/x86/kvm/mmu.h
+++ b/arch/x86/kvm/mmu.h
@@ -44,11 +44,17 @@
 #define PT_DIRECTORY_LEVEL 2
 #define PT_PAGE_TABLE_LEVEL 1
 
-#define PFERR_PRESENT_MASK (1U << 0)
-#define PFERR_WRITE_MASK (1U << 1)
-#define PFERR_USER_MASK (1U << 2)
-#define PFERR_RSVD_MASK (1U << 3)
-#define PFERR_FETCH_MASK (1U << 4)
+#define PFERR_PRESENT_BIT 0
+#define PFERR_WRITE_BIT 1
+#define PFERR_USER_BIT 2
+#define PFERR_RSVD_BIT 3
+#define PFERR_FETCH_BIT 4
+
+#define PFERR_PRESENT_MASK (1U << PFERR_PRESENT_BIT)
+#define PFERR_WRITE_MASK (1U << PFERR_WRITE_BIT)
+#define PFERR_USER_MASK (1U << PFERR_USER_BIT)
+#define PFERR_RSVD_MASK (1U << PFERR_RSVD_BIT)
+#define PFERR_FETCH_MASK (1U << PFERR_FETCH_BIT)
 
 int kvm_mmu_get_spte_hierarchy(struct kvm_vcpu *vcpu, u64 addr, u64 sptes[4]);
 void kvm_mmu_set_mmio_spte_mask(u64 mmio_mask);
@@ -73,6 +79,8 @@ int handle_mmio_page_fault_common(struct kvm_vcpu *vcpu, u64 addr, bool direct);
 void kvm_init_shadow_mmu(struct kvm_vcpu *vcpu, struct kvm_mmu *context);
 void kvm_init_shadow_ept_mmu(struct kvm_vcpu *vcpu, struct kvm_mmu *context,
                 bool execonly);
+void update_permission_bitmask(struct kvm_vcpu *vcpu, struct kvm_mmu *mmu,
+                bool ept);
 
 static inline unsigned int kvm_mmu_available_pages(struct kvm *kvm)
 {
@@ -110,10 +118,30 @@ static inline bool is_write_protection(struct kvm_vcpu *vcpu)
  * Will a fault with a given page-fault error code (pfec) cause a permission
  * fault with the given access (in ACC_* format)?
  */
-static inline bool permission_fault(struct kvm_mmu *mmu, unsigned pte_access,
-                                    unsigned pfec)
+static inline bool permission_fault(struct kvm_vcpu *vcpu, struct kvm_mmu *mmu,
+                                    unsigned pte_access, unsigned pfec)
 {
-        return (mmu->permissions[pfec >> 1] >> pte_access) & 1;
+        int cpl = kvm_x86_ops->get_cpl(vcpu);
+        unsigned long rflags = kvm_x86_ops->get_rflags(vcpu);
+
+        /*
+         * If CPL < 3, SMAP prevention are disabled if EFLAGS.AC = 1.
+         *
+         * If CPL = 3, SMAP applies to all supervisor-mode data accesses
+         * (these are implicit supervisor accesses) regardless of the value
+         * of EFLAGS.AC.
+         *
+         * This computes (cpl < 3) && (rflags & X86_EFLAGS_AC), leaving
+         * the result in X86_EFLAGS_AC. We then insert it in place of
+         * the PFERR_RSVD_MASK bit; this bit will always be zero in pfec,
+         * but it will be one in index if SMAP checks are being overridden.
+         * It is important to keep this branchless.
+         */
+        unsigned long smap = (cpl - 3) & (rflags & X86_EFLAGS_AC);
+        int index = (pfec >> 1) +
+                    (smap >> (X86_EFLAGS_AC_BIT - PFERR_RSVD_BIT + 1));
+
+        return (mmu->permissions[index] >> pte_access) & 1;
 }
 
 void kvm_mmu_invalidate_zap_all_pages(struct kvm *kvm);
diff --git a/arch/x86/kvm/paging_tmpl.h b/arch/x86/kvm/paging_tmpl.h
index b1e6c1bf68d3..123efd3ec29f 100644
--- a/arch/x86/kvm/paging_tmpl.h
+++ b/arch/x86/kvm/paging_tmpl.h
@@ -353,7 +353,7 @@ retry_walk:
                 walker->ptes[walker->level - 1] = pte;
         } while (!is_last_gpte(mmu, walker->level, pte));
 
-        if (unlikely(permission_fault(mmu, pte_access, access))) {
+        if (unlikely(permission_fault(vcpu, mmu, pte_access, access))) {
                 errcode |= PFERR_PRESENT_MASK;
                 goto error;
         }
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 1320e0f8e611..1f68c5831924 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -3484,13 +3484,14 @@ static int vmx_set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4)
                         hw_cr4 &= ~X86_CR4_PAE;
                         hw_cr4 |= X86_CR4_PSE;
                         /*
-                         * SMEP is disabled if CPU is in non-paging mode in
-                         * hardware. However KVM always uses paging mode to
+                         * SMEP/SMAP is disabled if CPU is in non-paging mode
+                         * in hardware. However KVM always uses paging mode to
                          * emulate guest non-paging mode with TDP.
-                         * To emulate this behavior, SMEP needs to be manually
-                         * disabled when guest switches to non-paging mode.
+                         * To emulate this behavior, SMEP/SMAP needs to be
+                         * manually disabled when guest switches to non-paging
+                         * mode.
                          */
-                        hw_cr4 &= ~X86_CR4_SMEP;
+                        hw_cr4 &= ~(X86_CR4_SMEP | X86_CR4_SMAP);
                 } else if (!(cr4 & X86_CR4_PAE)) {
                         hw_cr4 &= ~X86_CR4_PAE;
                 }
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 9d1b5cd4d34c..8b8fc0b792ba 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -652,6 +652,9 @@ int kvm_set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4)
         if (!guest_cpuid_has_smep(vcpu) && (cr4 & X86_CR4_SMEP))
                 return 1;
 
+        if (!guest_cpuid_has_smap(vcpu) && (cr4 & X86_CR4_SMAP))
+                return 1;
+
         if (!guest_cpuid_has_fsgsbase(vcpu) && (cr4 & X86_CR4_FSGSBASE))
                 return 1;
 
@@ -680,6 +683,9 @@ int kvm_set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4)
             (!(cr4 & X86_CR4_PCIDE) && (old_cr4 & X86_CR4_PCIDE)))
                 kvm_mmu_reset_context(vcpu);
 
+        if ((cr4 ^ old_cr4) & X86_CR4_SMAP)
+                update_permission_bitmask(vcpu, vcpu->arch.walk_mmu, false);
+
         if ((cr4 ^ old_cr4) & X86_CR4_OSXSAVE)
                 kvm_update_cpuid(vcpu);
 
@@ -1117,7 +1123,6 @@ static inline u64 get_kernel_ns(void)
 {
         struct timespec ts;
 
-        WARN_ON(preemptible());
         ktime_get_ts(&ts);
         monotonic_to_bootbased(&ts);
         return timespec_to_ns(&ts);
@@ -4164,7 +4169,8 @@ static int vcpu_mmio_gva_to_gpa(struct kvm_vcpu *vcpu, unsigned long gva,
                 | (write ? PFERR_WRITE_MASK : 0);
 
         if (vcpu_match_mmio_gva(vcpu, gva)
-            && !permission_fault(vcpu->arch.walk_mmu, vcpu->arch.access, access)) {
+            && !permission_fault(vcpu, vcpu->arch.walk_mmu,
+                                 vcpu->arch.access, access)) {
                 *gpa = vcpu->arch.mmio_gfn << PAGE_SHIFT |
                                         (gva & (PAGE_SIZE - 1));
                 trace_vcpu_match_mmio(gva, *gpa, write, false);
diff --git a/arch/xtensa/configs/iss_defconfig b/arch/xtensa/configs/iss_defconfig
index d57d917ff240..1493c68352d1 100644
--- a/arch/xtensa/configs/iss_defconfig
+++ b/arch/xtensa/configs/iss_defconfig
@@ -627,7 +627,6 @@ CONFIG_SCHED_DEBUG=y
 # CONFIG_DEBUG_KOBJECT is not set
 # CONFIG_DEBUG_INFO is not set
 # CONFIG_DEBUG_VM is not set
-# CONFIG_DEBUG_WRITECOUNT is not set
 # CONFIG_DEBUG_MEMORY_INIT is not set
 # CONFIG_DEBUG_LIST is not set
 # CONFIG_DEBUG_SG is not set
diff --git a/arch/xtensa/configs/s6105_defconfig b/arch/xtensa/configs/s6105_defconfig
index 583c2b0974ca..12a492ab6d17 100644
--- a/arch/xtensa/configs/s6105_defconfig
+++ b/arch/xtensa/configs/s6105_defconfig
@@ -569,7 +569,6 @@ CONFIG_DEBUG_SPINLOCK_SLEEP=y
 # CONFIG_DEBUG_INFO is not set
 # CONFIG_DEBUG_VM is not set
 CONFIG_DEBUG_NOMMU_REGIONS=y
-# CONFIG_DEBUG_WRITECOUNT is not set
 # CONFIG_DEBUG_MEMORY_INIT is not set
 # CONFIG_DEBUG_LIST is not set
 # CONFIG_DEBUG_SG is not set
diff --git a/block/blk-map.c b/block/blk-map.c
index cca6356d216d..f7b22bc21518 100644
--- a/block/blk-map.c
+++ b/block/blk-map.c
@@ -188,7 +188,7 @@ EXPORT_SYMBOL(blk_rq_map_user);
  *    unmapping.
  */
 int blk_rq_map_user_iov(struct request_queue *q, struct request *rq,
-                        struct rq_map_data *map_data, struct sg_iovec *iov,
+                        struct rq_map_data *map_data, const struct sg_iovec *iov,
                         int iov_count, unsigned int len, gfp_t gfp_mask)
 {
         struct bio *bio;
diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c
index 18c76e84d540..68e3992e8838 100644
--- a/drivers/block/drbd/drbd_receiver.c
+++ b/drivers/block/drbd/drbd_receiver.c
@@ -469,24 +469,14 @@ static void drbd_wait_ee_list_empty(struct drbd_device *device,
 
 static int drbd_recv_short(struct socket *sock, void *buf, size_t size, int flags)
 {
-        mm_segment_t oldfs;
         struct kvec iov = {
                 .iov_base = buf,
                 .iov_len = size,
         };
         struct msghdr msg = {
-                .msg_iovlen = 1,
-                .msg_iov = (struct iovec *)&iov,
                 .msg_flags = (flags ? flags : MSG_WAITALL | MSG_NOSIGNAL)
         };
-        int rv;
-
-        oldfs = get_fs();
-        set_fs(KERNEL_DS);
-        rv = sock_recvmsg(sock, &msg, size, msg.msg_flags);
-        set_fs(oldfs);
-
-        return rv;
+        return kernel_recvmsg(sock, &msg, &iov, 1, size, msg.msg_flags);
 }
 
 static int drbd_recv(struct drbd_connection *connection, void *buf, size_t size)
diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c
index 55298db36b2d..3a70ea2f7cd6 100644
--- a/drivers/block/nbd.c
+++ b/drivers/block/nbd.c
@@ -630,37 +630,29 @@ static int __nbd_ioctl(struct block_device *bdev, struct nbd_device *nbd,
         }
  
         case NBD_CLEAR_SOCK: {
-                struct file *file;
-
+                struct socket *sock = nbd->sock;
                 nbd->sock = NULL;
-                file = nbd->file;
-                nbd->file = NULL;
                 nbd_clear_que(nbd);
                 BUG_ON(!list_empty(&nbd->queue_head));
                 BUG_ON(!list_empty(&nbd->waiting_queue));
                 kill_bdev(bdev);
-                if (file)
-                        fput(file);
+                if (sock)
+                        sockfd_put(sock);
                 return 0;
         }
 
         case NBD_SET_SOCK: {
-                struct file *file;
-                if (nbd->file)
+                struct socket *sock;
+                int err;
+                if (nbd->sock)
                         return -EBUSY;
-                file = fget(arg);
-                if (file) {
-                        struct inode *inode = file_inode(file);
-                        if (S_ISSOCK(inode->i_mode)) {
-                                nbd->file = file;
-                                nbd->sock = SOCKET_I(inode);
-                                if (max_part > 0)
-                                        bdev->bd_invalidated = 1;
-                                nbd->disconnect = 0; /* we're connected now */
-                                return 0;
-                        } else {
-                                fput(file);
-                        }
+                sock = sockfd_lookup(arg, &err);
+                if (sock) {
+                        nbd->sock = sock;
+                        if (max_part > 0)
+                                bdev->bd_invalidated = 1;
+                        nbd->disconnect = 0; /* we're connected now */
+                        return 0;
                 }
                 return -EINVAL;
         }
@@ -697,12 +689,12 @@ static int __nbd_ioctl(struct block_device *bdev, struct nbd_device *nbd,
 
         case NBD_DO_IT: {
                 struct task_struct *thread;
-                struct file *file;
+                struct socket *sock;
                 int error;
 
                 if (nbd->pid)
                         return -EBUSY;
-                if (!nbd->file)
+                if (!nbd->sock)
                         return -EINVAL;
 
                 mutex_unlock(&nbd->tx_lock);
@@ -731,15 +723,15 @@ static int __nbd_ioctl(struct block_device *bdev, struct nbd_device *nbd,
                 if (error)
                         return error;
                 sock_shutdown(nbd, 0);
-                file = nbd->file;
-                nbd->file = NULL;
+                sock = nbd->sock;
+                nbd->sock = NULL;
                 nbd_clear_que(nbd);
                 dev_warn(disk_to_dev(nbd->disk), "queue cleared\n");
                 kill_bdev(bdev);
                 queue_flag_clear_unlocked(QUEUE_FLAG_DISCARD, nbd->disk->queue);
                 set_device_ro(bdev, false);
-                if (file)
-                        fput(file);
+                if (sock)
+                        sockfd_put(sock);
                 nbd->flags = 0;
                 nbd->bytesize = 0;
                 bdev->bd_inode->i_size = 0;
@@ -875,9 +867,7 @@ static int __init nbd_init(void)
 
         for (i = 0; i < nbds_max; i++) {
                 struct gendisk *disk = nbd_dev[i].disk;
-                nbd_dev[i].file = NULL;
                 nbd_dev[i].magic = NBD_MAGIC;
-                nbd_dev[i].flags = 0;
                 INIT_LIST_HEAD(&nbd_dev[i].waiting_queue);
                 spin_lock_init(&nbd_dev[i].queue_lock);
                 INIT_LIST_HEAD(&nbd_dev[i].queue_head);
diff --git a/drivers/block/nvme-core.c b/drivers/block/nvme-core.c
index da085ff10d25..7c64fa756cce 100644
--- a/drivers/block/nvme-core.c
+++ b/drivers/block/nvme-core.c
@@ -1,6 +1,6 @@
 /*
  * NVM Express device driver
- * Copyright (c) 2011, Intel Corporation.
+ * Copyright (c) 2011-2014, Intel Corporation.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms and conditions of the GNU General Public License,
@@ -20,10 +20,12 @@
 #include <linux/bio.h>
 #include <linux/bitops.h>
 #include <linux/blkdev.h>
+#include <linux/cpu.h>
 #include <linux/delay.h>
 #include <linux/errno.h>
 #include <linux/fs.h>
 #include <linux/genhd.h>
+#include <linux/hdreg.h>
 #include <linux/idr.h>
 #include <linux/init.h>
 #include <linux/interrupt.h>
@@ -35,6 +37,7 @@
 #include <linux/module.h>
 #include <linux/moduleparam.h>
 #include <linux/pci.h>
+#include <linux/percpu.h>
 #include <linux/poison.h>
 #include <linux/ptrace.h>
 #include <linux/sched.h>
@@ -47,6 +50,11 @@
 #define SQ_SIZE(depth)          (depth * sizeof(struct nvme_command))
 #define CQ_SIZE(depth)          (depth * sizeof(struct nvme_completion))
 #define ADMIN_TIMEOUT   (60 * HZ)
+#define IOD_TIMEOUT     (4 * NVME_IO_TIMEOUT)
+
+unsigned char io_timeout = 30;
+module_param(io_timeout, byte, 0644);
+MODULE_PARM_DESC(io_timeout, "timeout in seconds for I/O");
 
 static int nvme_major;
 module_param(nvme_major, int, 0);
@@ -58,6 +66,7 @@ static DEFINE_SPINLOCK(dev_list_lock);
 static LIST_HEAD(dev_list);
 static struct task_struct *nvme_thread;
 static struct workqueue_struct *nvme_workq;
+static wait_queue_head_t nvme_kthread_wait;
 
 static void nvme_reset_failed_dev(struct work_struct *ws);
 
@@ -74,6 +83,7 @@ struct async_cmd_info {
  * commands and one for I/O commands).
  */
 struct nvme_queue {
+        struct rcu_head r_head;
         struct device *q_dmadev;
         struct nvme_dev *dev;
         char irqname[24];       /* nvme4294967295-65535\0 */
@@ -85,6 +95,7 @@ struct nvme_queue {
         wait_queue_head_t sq_full;
         wait_queue_t sq_cong_wait;
         struct bio_list sq_cong;
+        struct list_head iod_bio;
         u32 __iomem *q_db;
         u16 q_depth;
         u16 cq_vector;
@@ -95,6 +106,7 @@ struct nvme_queue {
         u8 cq_phase;
         u8 cqe_seen;
         u8 q_suspended;
+        cpumask_var_t cpu_mask;
         struct async_cmd_info cmdinfo;
         unsigned long cmdid_data[];
 };
@@ -118,7 +130,7 @@ static inline void _nvme_check_size(void)
         BUILD_BUG_ON(sizeof(struct nvme_smart_log) != 512);
 }
 
-typedef void (*nvme_completion_fn)(struct nvme_dev *, void *,
+typedef void (*nvme_completion_fn)(struct nvme_queue *, void *,
                                                 struct nvme_completion *);
 
 struct nvme_cmd_info {
@@ -190,7 +202,7 @@ static int alloc_cmdid_killable(struct nvme_queue *nvmeq, void *ctx,
 #define CMD_CTX_FLUSH           (0x318 + CMD_CTX_BASE)
 #define CMD_CTX_ABORT           (0x31C + CMD_CTX_BASE)
 
-static void special_completion(struct nvme_dev *dev, void *ctx,
+static void special_completion(struct nvme_queue *nvmeq, void *ctx,
                                                 struct nvme_completion *cqe)
 {
         if (ctx == CMD_CTX_CANCELLED)
@@ -198,26 +210,26 @@ static void special_completion(struct nvme_dev *dev, void *ctx,
         if (ctx == CMD_CTX_FLUSH)
                 return;
         if (ctx == CMD_CTX_ABORT) {
-                ++dev->abort_limit;
+                ++nvmeq->dev->abort_limit;
                 return;
         }
         if (ctx == CMD_CTX_COMPLETED) {
-                dev_warn(&dev->pci_dev->dev,
+                dev_warn(nvmeq->q_dmadev,
                                 "completed id %d twice on queue %d\n",
                                 cqe->command_id, le16_to_cpup(&cqe->sq_id));
                 return;
         }
         if (ctx == CMD_CTX_INVALID) {
-                dev_warn(&dev->pci_dev->dev,
+                dev_warn(nvmeq->q_dmadev,
                                 "invalid id %d completed on queue %d\n",
                                 cqe->command_id, le16_to_cpup(&cqe->sq_id));
                 return;
         }
 
-        dev_warn(&dev->pci_dev->dev, "Unknown special completion %p\n", ctx);
+        dev_warn(nvmeq->q_dmadev, "Unknown special completion %p\n", ctx);
 }
 
-static void async_completion(struct nvme_dev *dev, void *ctx,
+static void async_completion(struct nvme_queue *nvmeq, void *ctx,
                                                 struct nvme_completion *cqe)
 {
         struct async_cmd_info *cmdinfo = ctx;
@@ -262,14 +274,34 @@ static void *cancel_cmdid(struct nvme_queue *nvmeq, int cmdid,
         return ctx;
 }
 
-struct nvme_queue *get_nvmeq(struct nvme_dev *dev)
+static struct nvme_queue *raw_nvmeq(struct nvme_dev *dev, int qid)
+{
+        return rcu_dereference_raw(dev->queues[qid]);
+}
+
+static struct nvme_queue *get_nvmeq(struct nvme_dev *dev) __acquires(RCU)
+{
+        unsigned queue_id = get_cpu_var(*dev->io_queue);
+        rcu_read_lock();
+        return rcu_dereference(dev->queues[queue_id]);
+}
+
+static void put_nvmeq(struct nvme_queue *nvmeq) __releases(RCU)
 {
-        return dev->queues[get_cpu() + 1];
+        rcu_read_unlock();
+        put_cpu_var(nvmeq->dev->io_queue);
 }
 
-void put_nvmeq(struct nvme_queue *nvmeq)
+static struct nvme_queue *lock_nvmeq(struct nvme_dev *dev, int q_idx)
+                                                        __acquires(RCU)
 {
-        put_cpu();
+        rcu_read_lock();
+        return rcu_dereference(dev->queues[q_idx]);
+}
+
+static void unlock_nvmeq(struct nvme_queue *nvmeq) __releases(RCU)
+{
+        rcu_read_unlock();
 }
 
 /**
@@ -284,6 +316,10 @@ static int nvme_submit_cmd(struct nvme_queue *nvmeq, struct nvme_command *cmd)
         unsigned long flags;
         u16 tail;
         spin_lock_irqsave(&nvmeq->q_lock, flags);
+        if (nvmeq->q_suspended) {
+                spin_unlock_irqrestore(&nvmeq->q_lock, flags);
+                return -EBUSY;
+        }
         tail = nvmeq->sq_tail;
         memcpy(&nvmeq->sq_cmds[tail], cmd, sizeof(*cmd));
         if (++tail == nvmeq->q_depth)
@@ -323,6 +359,7 @@ nvme_alloc_iod(unsigned nseg, unsigned nbytes, gfp_t gfp)
                 iod->npages = -1;
                 iod->length = nbytes;
                 iod->nents = 0;
+                iod->first_dma = 0ULL;
                 iod->start_time = jiffies;
         }
 
@@ -371,19 +408,31 @@ static void nvme_end_io_acct(struct bio *bio, unsigned long start_time)
         part_stat_unlock();
 }
 
-static void bio_completion(struct nvme_dev *dev, void *ctx,
+static void bio_completion(struct nvme_queue *nvmeq, void *ctx,
                                                 struct nvme_completion *cqe)
 {
         struct nvme_iod *iod = ctx;
         struct bio *bio = iod->private;
         u16 status = le16_to_cpup(&cqe->status) >> 1;
 
+        if (unlikely(status)) {
+                if (!(status & NVME_SC_DNR ||
+                                bio->bi_rw & REQ_FAILFAST_MASK) &&
+                                (jiffies - iod->start_time) < IOD_TIMEOUT) {
+                        if (!waitqueue_active(&nvmeq->sq_full))
+                                add_wait_queue(&nvmeq->sq_full,
+                                                        &nvmeq->sq_cong_wait);
+                        list_add_tail(&iod->node, &nvmeq->iod_bio);
+                        wake_up(&nvmeq->sq_full);
+                        return;
+                }
+        }
         if (iod->nents) {
-                dma_unmap_sg(&dev->pci_dev->dev, iod->sg, iod->nents,
+                dma_unmap_sg(nvmeq->q_dmadev, iod->sg, iod->nents,
                         bio_data_dir(bio) ? DMA_TO_DEVICE : DMA_FROM_DEVICE);
                 nvme_end_io_acct(bio, iod->start_time);
         }
-        nvme_free_iod(dev, iod);
+        nvme_free_iod(nvmeq->dev, iod);
         if (status)
                 bio_endio(bio, -EIO);
         else
@@ -391,8 +440,8 @@ static void bio_completion(struct nvme_dev *dev, void *ctx,
 }
 
 /* length is in bytes.  gfp flags indicates whether we may sleep. */
-int nvme_setup_prps(struct nvme_dev *dev, struct nvme_common_command *cmd,
-                        struct nvme_iod *iod, int total_len, gfp_t gfp)
+int nvme_setup_prps(struct nvme_dev *dev, struct nvme_iod *iod, int total_len,
+                                                                gfp_t gfp)
 {
         struct dma_pool *pool;
         int length = total_len;
@@ -405,7 +454,6 @@ int nvme_setup_prps(struct nvme_dev *dev, struct nvme_common_command *cmd,
         dma_addr_t prp_dma;
         int nprps, i;
 
-        cmd->prp1 = cpu_to_le64(dma_addr);
         length -= (PAGE_SIZE - offset);
         if (length <= 0)
                 return total_len;
@@ -420,7 +468,7 @@ int nvme_setup_prps(struct nvme_dev *dev, struct nvme_common_command *cmd,
         }
 
         if (length <= PAGE_SIZE) {
-                cmd->prp2 = cpu_to_le64(dma_addr);
+                iod->first_dma = dma_addr;
                 return total_len;
         }
 
@@ -435,13 +483,12 @@ int nvme_setup_prps(struct nvme_dev *dev, struct nvme_common_command *cmd,
 
         prp_list = dma_pool_alloc(pool, gfp, &prp_dma);
         if (!prp_list) {
-                cmd->prp2 = cpu_to_le64(dma_addr);
+                iod->first_dma = dma_addr;
                 iod->npages = -1;
                 return (total_len - length) + PAGE_SIZE;
         }
         list[0] = prp_list;
         iod->first_dma = prp_dma;
-        cmd->prp2 = cpu_to_le64(prp_dma);
         i = 0;
         for (;;) {
                 if (i == PAGE_SIZE / 8) {
@@ -480,10 +527,11 @@ static int nvme_split_and_submit(struct bio *bio, struct nvme_queue *nvmeq,
 
         bio_chain(split, bio);
 
-        if (bio_list_empty(&nvmeq->sq_cong))
+        if (!waitqueue_active(&nvmeq->sq_full))
                 add_wait_queue(&nvmeq->sq_full, &nvmeq->sq_cong_wait);
         bio_list_add(&nvmeq->sq_cong, split);
         bio_list_add(&nvmeq->sq_cong, bio);
+        wake_up(&nvmeq->sq_full);
 
         return 0;
 }
@@ -536,25 +584,13 @@ static int nvme_map_bio(struct nvme_queue *nvmeq, struct nvme_iod *iod,
         return length;
 }
 
-/*
- * We reuse the small pool to allocate the 16-byte range here as it is not
- * worth having a special pool for these or additional cases to handle freeing
- * the iod.
- */
 static int nvme_submit_discard(struct nvme_queue *nvmeq, struct nvme_ns *ns,
                 struct bio *bio, struct nvme_iod *iod, int cmdid)
 {
-        struct nvme_dsm_range *range;
+        struct nvme_dsm_range *range =
+                                (struct nvme_dsm_range *)iod_list(iod)[0];
         struct nvme_command *cmnd = &nvmeq->sq_cmds[nvmeq->sq_tail];
 
-        range = dma_pool_alloc(nvmeq->dev->prp_small_pool, GFP_ATOMIC,
-                                                        &iod->first_dma);
-        if (!range)
-                return -ENOMEM;
-
-        iod_list(iod)[0] = (__le64 *)range;
-        iod->npages = 0;
-
         range->cattr = cpu_to_le32(0);
         range->nlb = cpu_to_le32(bio->bi_iter.bi_size >> ns->lba_shift);
         range->slba = cpu_to_le64(nvme_block_nr(ns, bio->bi_iter.bi_sector));
@@ -601,44 +637,22 @@ int nvme_submit_flush_data(struct nvme_queue *nvmeq, struct nvme_ns *ns)
         return nvme_submit_flush(nvmeq, ns, cmdid);
 }
 
-/*
- * Called with local interrupts disabled and the q_lock held.  May not sleep.
- */
-static int nvme_submit_bio_queue(struct nvme_queue *nvmeq, struct nvme_ns *ns,
-                                                                struct bio *bio)
+static int nvme_submit_iod(struct nvme_queue *nvmeq, struct nvme_iod *iod)
 {
+        struct bio *bio = iod->private;
+        struct nvme_ns *ns = bio->bi_bdev->bd_disk->private_data;
         struct nvme_command *cmnd;
-        struct nvme_iod *iod;
-        enum dma_data_direction dma_dir;
-        int cmdid, length, result;
+        int cmdid;
         u16 control;
         u32 dsmgmt;
-        int psegs = bio_phys_segments(ns->queue, bio);
-
-        if ((bio->bi_rw & REQ_FLUSH) && psegs) {
-                result = nvme_submit_flush_data(nvmeq, ns);
-                if (result)
-                        return result;
-        }
 
-        result = -ENOMEM;
-        iod = nvme_alloc_iod(psegs, bio->bi_iter.bi_size, GFP_ATOMIC);
-        if (!iod)
-                goto nomem;
-        iod->private = bio;
-
-        result = -EBUSY;
         cmdid = alloc_cmdid(nvmeq, iod, bio_completion, NVME_IO_TIMEOUT);
         if (unlikely(cmdid < 0))
-                goto free_iod;
+                return cmdid;
 
-        if (bio->bi_rw & REQ_DISCARD) {
-                result = nvme_submit_discard(nvmeq, ns, bio, iod, cmdid);
-                if (result)
-                        goto free_cmdid;
-                return result;
-        }
-        if ((bio->bi_rw & REQ_FLUSH) && !psegs)
+        if (bio->bi_rw & REQ_DISCARD)
+                return nvme_submit_discard(nvmeq, ns, bio, iod, cmdid);
+        if ((bio->bi_rw & REQ_FLUSH) && !iod->nents)
                 return nvme_submit_flush(nvmeq, ns, cmdid);
 
         control = 0;
@@ -652,42 +666,85 @@ static int nvme_submit_bio_queue(struct nvme_queue *nvmeq, struct nvme_ns *ns,
                 dsmgmt |= NVME_RW_DSM_FREQ_PREFETCH;
 
         cmnd = &nvmeq->sq_cmds[nvmeq->sq_tail];
-
         memset(cmnd, 0, sizeof(*cmnd));
-        if (bio_data_dir(bio)) {
-                cmnd->rw.opcode = nvme_cmd_write;
-                dma_dir = DMA_TO_DEVICE;
-        } else {
-                cmnd->rw.opcode = nvme_cmd_read;
-                dma_dir = DMA_FROM_DEVICE;
-        }
-
-        result = nvme_map_bio(nvmeq, iod, bio, dma_dir, psegs);
-        if (result <= 0)
-                goto free_cmdid;
-        length = result;
 
+        cmnd->rw.opcode = bio_data_dir(bio) ? nvme_cmd_write : nvme_cmd_read;
         cmnd->rw.command_id = cmdid;
         cmnd->rw.nsid = cpu_to_le32(ns->ns_id);
-        length = nvme_setup_prps(nvmeq->dev, &cmnd->common, iod, length,
-                                                                GFP_ATOMIC);
+        cmnd->rw.prp1 = cpu_to_le64(sg_dma_address(iod->sg));
+        cmnd->rw.prp2 = cpu_to_le64(iod->first_dma);
         cmnd->rw.slba = cpu_to_le64(nvme_block_nr(ns, bio->bi_iter.bi_sector));
-        cmnd->rw.length = cpu_to_le16((length >> ns->lba_shift) - 1);
+        cmnd->rw.length =
+                cpu_to_le16((bio->bi_iter.bi_size >> ns->lba_shift) - 1);
         cmnd->rw.control = cpu_to_le16(control);
         cmnd->rw.dsmgmt = cpu_to_le32(dsmgmt);
 
-        nvme_start_io_acct(bio);
         if (++nvmeq->sq_tail == nvmeq->q_depth)
                 nvmeq->sq_tail = 0;
         writel(nvmeq->sq_tail, nvmeq->q_db);
 
         return 0;
+}
+
+/*
+ * Called with local interrupts disabled and the q_lock held.  May not sleep.
+ */
+static int nvme_submit_bio_queue(struct nvme_queue *nvmeq, struct nvme_ns *ns,
+                                                                struct bio *bio)
+{
+        struct nvme_iod *iod;
+        int psegs = bio_phys_segments(ns->queue, bio);
+        int result;
+
+        if ((bio->bi_rw & REQ_FLUSH) && psegs) {
+                result = nvme_submit_flush_data(nvmeq, ns);
+                if (result)
+                        return result;
+        }
+
+        iod = nvme_alloc_iod(psegs, bio->bi_iter.bi_size, GFP_ATOMIC);
+        if (!iod)
+                return -ENOMEM;
+
+        iod->private = bio;
+        if (bio->bi_rw & REQ_DISCARD) {
+                void *range;
+                /*
+                 * We reuse the small pool to allocate the 16-byte range here
+                 * as it is not worth having a special pool for these or
+                 * additional cases to handle freeing the iod.
+                 */
+                range = dma_pool_alloc(nvmeq->dev->prp_small_pool,
+                                                GFP_ATOMIC,
+                                                &iod->first_dma);
+                if (!range) {
+                        result = -ENOMEM;
+                        goto free_iod;
+                }
+                iod_list(iod)[0] = (__le64 *)range;
+                iod->npages = 0;
+        } else if (psegs) {
+                result = nvme_map_bio(nvmeq, iod, bio,
+                        bio_data_dir(bio) ? DMA_TO_DEVICE : DMA_FROM_DEVICE,
+                        psegs);
+                if (result <= 0)
+                        goto free_iod;
+                if (nvme_setup_prps(nvmeq->dev, iod, result, GFP_ATOMIC) !=
+                                                                result) {
+                        result = -ENOMEM;
+                        goto free_iod;
+                }
+                nvme_start_io_acct(bio);
+        }
+        if (unlikely(nvme_submit_iod(nvmeq, iod))) {
+                if (!waitqueue_active(&nvmeq->sq_full))
+                        add_wait_queue(&nvmeq->sq_full, &nvmeq->sq_cong_wait);
+                list_add_tail(&iod->node, &nvmeq->iod_bio);
+        }
+        return 0;
 
- free_cmdid:
-        free_cmdid(nvmeq, cmdid, NULL);
  free_iod:
         nvme_free_iod(nvmeq->dev, iod);
- nomem:
         return result;
 }
 
@@ -711,7 +768,7 @@ static int nvme_process_cq(struct nvme_queue *nvmeq)
                 }
 
                 ctx = free_cmdid(nvmeq, cqe.command_id, &fn);
-                fn(nvmeq->dev, ctx, &cqe);
+                fn(nvmeq, ctx, &cqe);
         }
 
         /* If the controller ignores the cq head doorbell and continuously
@@ -747,7 +804,7 @@ static void nvme_make_request(struct request_queue *q, struct bio *bio)
         if (!nvmeq->q_suspended && bio_list_empty(&nvmeq->sq_cong))
                 result = nvme_submit_bio_queue(nvmeq, ns, bio);
         if (unlikely(result)) {
-                if (bio_list_empty(&nvmeq->sq_cong))
+                if (!waitqueue_active(&nvmeq->sq_full))
                         add_wait_queue(&nvmeq->sq_full, &nvmeq->sq_cong_wait);
                 bio_list_add(&nvmeq->sq_cong, bio);
         }
@@ -791,7 +848,7 @@ struct sync_cmd_info {
         int status;
 };
 
-static void sync_completion(struct nvme_dev *dev, void *ctx,
+static void sync_completion(struct nvme_queue *nvmeq, void *ctx,
                                                 struct nvme_completion *cqe)
 {
         struct sync_cmd_info *cmdinfo = ctx;
@@ -804,27 +861,46 @@ static void sync_completion(struct nvme_dev *dev, void *ctx,
  * Returns 0 on success.  If the result is negative, it's a Linux error code;
  * if the result is positive, it's an NVM Express status code
  */
-int nvme_submit_sync_cmd(struct nvme_queue *nvmeq, struct nvme_command *cmd,
+static int nvme_submit_sync_cmd(struct nvme_dev *dev, int q_idx,
+                                                struct nvme_command *cmd,
                                                 u32 *result, unsigned timeout)
 {
-        int cmdid;
+        int cmdid, ret;
         struct sync_cmd_info cmdinfo;
+        struct nvme_queue *nvmeq;
+
+        nvmeq = lock_nvmeq(dev, q_idx);
+        if (!nvmeq) {
+                unlock_nvmeq(nvmeq);
+                return -ENODEV;
+        }
 
         cmdinfo.task = current;
         cmdinfo.status = -EINTR;
 
-        cmdid = alloc_cmdid_killable(nvmeq, &cmdinfo, sync_completion,
-                                                                timeout);
-        if (cmdid < 0)
+        cmdid = alloc_cmdid(nvmeq, &cmdinfo, sync_completion, timeout);
+        if (cmdid < 0) {
+                unlock_nvmeq(nvmeq);
                 return cmdid;
+        }
         cmd->common.command_id = cmdid;
 
         set_current_state(TASK_KILLABLE);
-        nvme_submit_cmd(nvmeq, cmd);
+        ret = nvme_submit_cmd(nvmeq, cmd);
+        if (ret) {
+                free_cmdid(nvmeq, cmdid, NULL);
+                unlock_nvmeq(nvmeq);
+                set_current_state(TASK_RUNNING);
+                return ret;
+        }
+        unlock_nvmeq(nvmeq);
         schedule_timeout(timeout);
 
         if (cmdinfo.status == -EINTR) {
-                nvme_abort_command(nvmeq, cmdid);
+                nvmeq = lock_nvmeq(dev, q_idx);
+                if (nvmeq)
+                        nvme_abort_command(nvmeq, cmdid);
+                unlock_nvmeq(nvmeq);
                 return -EINTR;
         }
 
@@ -845,20 +921,26 @@ static int nvme_submit_async_cmd(struct nvme_queue *nvmeq,
                 return cmdid;
         cmdinfo->status = -EINTR;
         cmd->common.command_id = cmdid;
-        nvme_submit_cmd(nvmeq, cmd);
-        return 0;
+        return nvme_submit_cmd(nvmeq, cmd);
 }
 
 int nvme_submit_admin_cmd(struct nvme_dev *dev, struct nvme_command *cmd,
                                                                 u32 *result)
 {
-        return nvme_submit_sync_cmd(dev->queues[0], cmd, result, ADMIN_TIMEOUT);
+        return nvme_submit_sync_cmd(dev, 0, cmd, result, ADMIN_TIMEOUT);
+}
+
+int nvme_submit_io_cmd(struct nvme_dev *dev, struct nvme_command *cmd,
+                                                                u32 *result)
+{
+        return nvme_submit_sync_cmd(dev, smp_processor_id() + 1, cmd, result,
+                                                        NVME_IO_TIMEOUT);
 }
 
 static int nvme_submit_admin_cmd_async(struct nvme_dev *dev,
                 struct nvme_command *cmd, struct async_cmd_info *cmdinfo)
 {
-        return nvme_submit_async_cmd(dev->queues[0], cmd, cmdinfo,
+        return nvme_submit_async_cmd(raw_nvmeq(dev, 0), cmd, cmdinfo,
                                                                 ADMIN_TIMEOUT);
 }
 
@@ -985,6 +1067,7 @@ static void nvme_abort_cmd(int cmdid, struct nvme_queue *nvmeq)
         struct nvme_command cmd;
         struct nvme_dev *dev = nvmeq->dev;
         struct nvme_cmd_info *info = nvme_cmd_info(nvmeq);
+        struct nvme_queue *adminq;
 
         if (!nvmeq->qid || info[cmdid].aborted) {
                 if (work_busy(&dev->reset_work))
@@ -1001,7 +1084,8 @@ static void nvme_abort_cmd(int cmdid, struct nvme_queue *nvmeq)
         if (!dev->abort_limit)
                 return;
 
-        a_cmdid = alloc_cmdid(dev->queues[0], CMD_CTX_ABORT, special_completion,
+        adminq = rcu_dereference(dev->queues[0]);
+        a_cmdid = alloc_cmdid(adminq, CMD_CTX_ABORT, special_completion,
                                                                 ADMIN_TIMEOUT);
         if (a_cmdid < 0)
                 return;
@@ -1018,7 +1102,7 @@ static void nvme_abort_cmd(int cmdid, struct nvme_queue *nvmeq)
 
         dev_warn(nvmeq->q_dmadev, "Aborting I/O %d QID %d\n", cmdid,
                                                         nvmeq->qid);
-        nvme_submit_cmd(dev->queues[0], &cmd);
+        nvme_submit_cmd(adminq, &cmd);
 }
 
 /**
@@ -1051,23 +1135,38 @@ static void nvme_cancel_ios(struct nvme_queue *nvmeq, bool timeout)
                 dev_warn(nvmeq->q_dmadev, "Cancelling I/O %d QID %d\n", cmdid,
                                                                 nvmeq->qid);
                 ctx = cancel_cmdid(nvmeq, cmdid, &fn);
-                fn(nvmeq->dev, ctx, &cqe);
+                fn(nvmeq, ctx, &cqe);
         }
 }
 
-static void nvme_free_queue(struct nvme_queue *nvmeq)
+static void nvme_free_queue(struct rcu_head *r)
 {
+        struct nvme_queue *nvmeq = container_of(r, struct nvme_queue, r_head);
+
         spin_lock_irq(&nvmeq->q_lock);
         while (bio_list_peek(&nvmeq->sq_cong)) {
                 struct bio *bio = bio_list_pop(&nvmeq->sq_cong);
                 bio_endio(bio, -EIO);
         }
+        while (!list_empty(&nvmeq->iod_bio)) {
+                static struct nvme_completion cqe = {
+                        .status = cpu_to_le16(
+                                (NVME_SC_ABORT_REQ | NVME_SC_DNR) << 1),
+                };
+                struct nvme_iod *iod = list_first_entry(&nvmeq->iod_bio,
+                                                        struct nvme_iod,
+                                                        node);
+                list_del(&iod->node);
+                bio_completion(nvmeq, iod, &cqe);
+        }
         spin_unlock_irq(&nvmeq->q_lock);
 
         dma_free_coherent(nvmeq->q_dmadev, CQ_SIZE(nvmeq->q_depth),
                                 (void *)nvmeq->cqes, nvmeq->cq_dma_addr);
         dma_free_coherent(nvmeq->q_dmadev, SQ_SIZE(nvmeq->q_depth),
                                         nvmeq->sq_cmds, nvmeq->sq_dma_addr);
+        if (nvmeq->qid)
+                free_cpumask_var(nvmeq->cpu_mask);
         kfree(nvmeq);
 }
 
@@ -1076,9 +1175,10 @@ static void nvme_free_queues(struct nvme_dev *dev, int lowest)
         int i;
 
         for (i = dev->queue_count - 1; i >= lowest; i--) {
-                nvme_free_queue(dev->queues[i]);
+                struct nvme_queue *nvmeq = raw_nvmeq(dev, i);
+                rcu_assign_pointer(dev->queues[i], NULL);
+                call_rcu(&nvmeq->r_head, nvme_free_queue);
                 dev->queue_count--;
-                dev->queues[i] = NULL;
         }
 }
 
@@ -1098,6 +1198,7 @@ static int nvme_suspend_queue(struct nvme_queue *nvmeq)
                 return 1;
         }
         nvmeq->q_suspended = 1;
+        nvmeq->dev->online_queues--;
         spin_unlock_irq(&nvmeq->q_lock);
 
         irq_set_affinity_hint(vector, NULL);
@@ -1116,7 +1217,7 @@ static void nvme_clear_queue(struct nvme_queue *nvmeq)
 
 static void nvme_disable_queue(struct nvme_dev *dev, int qid)
 {
-        struct nvme_queue *nvmeq = dev->queues[qid];
+        struct nvme_queue *nvmeq = raw_nvmeq(dev, qid);
 
         if (!nvmeq)
                 return;
@@ -1152,6 +1253,9 @@ static struct nvme_queue *nvme_alloc_queue(struct nvme_dev *dev, int qid,
         if (!nvmeq->sq_cmds)
                 goto free_cqdma;
 
+        if (qid && !zalloc_cpumask_var(&nvmeq->cpu_mask, GFP_KERNEL))
+                goto free_sqdma;
+
         nvmeq->q_dmadev = dmadev;
         nvmeq->dev = dev;
         snprintf(nvmeq->irqname, sizeof(nvmeq->irqname), "nvme%dq%d",
@@ -1162,15 +1266,20 @@ static struct nvme_queue *nvme_alloc_queue(struct nvme_dev *dev, int qid,
         init_waitqueue_head(&nvmeq->sq_full);
         init_waitqueue_entry(&nvmeq->sq_cong_wait, nvme_thread);
         bio_list_init(&nvmeq->sq_cong);
+        INIT_LIST_HEAD(&nvmeq->iod_bio);
         nvmeq->q_db = &dev->dbs[qid * 2 * dev->db_stride];
         nvmeq->q_depth = depth;
         nvmeq->cq_vector = vector;
         nvmeq->qid = qid;
         nvmeq->q_suspended = 1;
         dev->queue_count++;
+        rcu_assign_pointer(dev->queues[qid], nvmeq);
 
         return nvmeq;
 
+ free_sqdma:
+        dma_free_coherent(dmadev, SQ_SIZE(depth), (void *)nvmeq->sq_cmds,
+                                                        nvmeq->sq_dma_addr);
  free_cqdma:
         dma_free_coherent(dmadev, CQ_SIZE(depth), (void *)nvmeq->cqes,
                                                         nvmeq->cq_dma_addr);
@@ -1203,6 +1312,7 @@ static void nvme_init_queue(struct nvme_queue *nvmeq, u16 qid)
         memset((void *)nvmeq->cqes, 0, CQ_SIZE(nvmeq->q_depth));
         nvme_cancel_ios(nvmeq, false);
         nvmeq->q_suspended = 0;
+        dev->online_queues++;
 }
 
 static int nvme_create_queue(struct nvme_queue *nvmeq, int qid)
@@ -1311,12 +1421,11 @@ static int nvme_configure_admin_queue(struct nvme_dev *dev)
         if (result < 0)
                 return result;
 
-        nvmeq = dev->queues[0];
+        nvmeq = raw_nvmeq(dev, 0);
         if (!nvmeq) {
                 nvmeq = nvme_alloc_queue(dev, 0, 64, 0);
                 if (!nvmeq)
                         return -ENOMEM;
-                dev->queues[0] = nvmeq;
         }
 
         aqa = nvmeq->q_depth - 1;
@@ -1418,7 +1527,6 @@ void nvme_unmap_user_pages(struct nvme_dev *dev, int write,
 static int nvme_submit_io(struct nvme_ns *ns, struct nvme_user_io __user *uio)
 {
         struct nvme_dev *dev = ns->dev;
-        struct nvme_queue *nvmeq;
         struct nvme_user_io io;
         struct nvme_command c;
         unsigned length, meta_len;
@@ -1492,22 +1600,14 @@ static int nvme_submit_io(struct nvme_ns *ns, struct nvme_user_io __user *uio)
                 c.rw.metadata = cpu_to_le64(meta_dma_addr);
         }
 
-        length = nvme_setup_prps(dev, &c.common, iod, length, GFP_KERNEL);
+        length = nvme_setup_prps(dev, iod, length, GFP_KERNEL);
+        c.rw.prp1 = cpu_to_le64(sg_dma_address(iod->sg));
+        c.rw.prp2 = cpu_to_le64(iod->first_dma);
 
-        nvmeq = get_nvmeq(dev);
-        /*
-         * Since nvme_submit_sync_cmd sleeps, we can't keep preemption
-         * disabled.  We may be preempted at any point, and be rescheduled
-         * to a different CPU.  That will cause cacheline bouncing, but no
-         * additional races since q_lock already protects against other CPUs.
-         */
-        put_nvmeq(nvmeq);
         if (length != (io.nblocks + 1) << ns->lba_shift)
                 status = -ENOMEM;
-        else if (!nvmeq || nvmeq->q_suspended)
-                status = -EBUSY;
         else
-                status = nvme_submit_sync_cmd(nvmeq, &c, NULL, NVME_IO_TIMEOUT);
+                status = nvme_submit_io_cmd(dev, &c, NULL);
 
         if (meta_len) {
                 if (status == NVME_SC_SUCCESS && !(io.opcode & 1)) {
@@ -1572,8 +1672,9 @@ static int nvme_user_admin_cmd(struct nvme_dev *dev,
                                                                 length);
                 if (IS_ERR(iod))
                         return PTR_ERR(iod);
-                length = nvme_setup_prps(dev, &c.common, iod, length,
-                                                                GFP_KERNEL);
+                length = nvme_setup_prps(dev, iod, length, GFP_KERNEL);
+                c.common.prp1 = cpu_to_le64(sg_dma_address(iod->sg));
+                c.common.prp2 = cpu_to_le64(iod->first_dma);
         }
 
         timeout = cmd.timeout_ms ? msecs_to_jiffies(cmd.timeout_ms) :
@@ -1581,8 +1682,7 @@ static int nvme_user_admin_cmd(struct nvme_dev *dev,
         if (length != cmd.data_len)
                 status = -ENOMEM;
         else
-                status = nvme_submit_sync_cmd(dev->queues[0], &c, &cmd.result,
-                                                                timeout);
+                status = nvme_submit_sync_cmd(dev, 0, &c, &cmd.result, timeout);
 
         if (cmd.data_len) {
                 nvme_unmap_user_pages(dev, cmd.opcode & 1, iod);
@@ -1653,25 +1753,51 @@ static void nvme_release(struct gendisk *disk, fmode_t mode)
         kref_put(&dev->kref, nvme_free_dev);
 }
 
+static int nvme_getgeo(struct block_device *bd, struct hd_geometry *geo)
+{
+        /* some standard values */
+        geo->heads = 1 << 6;
+        geo->sectors = 1 << 5;
+        geo->cylinders = get_capacity(bd->bd_disk) >> 11;
+        return 0;
+}
+
 static const struct block_device_operations nvme_fops = {
         .owner          = THIS_MODULE,
         .ioctl          = nvme_ioctl,
         .compat_ioctl   = nvme_compat_ioctl,
         .open           = nvme_open,
         .release        = nvme_release,
+        .getgeo         = nvme_getgeo,
 };
 
+static void nvme_resubmit_iods(struct nvme_queue *nvmeq)
+{
+        struct nvme_iod *iod, *next;
+
+        list_for_each_entry_safe(iod, next, &nvmeq->iod_bio, node) {
+                if (unlikely(nvme_submit_iod(nvmeq, iod)))
+                        break;
+                list_del(&iod->node);
+                if (bio_list_empty(&nvmeq->sq_cong) &&
+                                                list_empty(&nvmeq->iod_bio))
+                        remove_wait_queue(&nvmeq->sq_full,
+                                                &nvmeq->sq_cong_wait);
+        }
+}
+
 static void nvme_resubmit_bios(struct nvme_queue *nvmeq)
 {
         while (bio_list_peek(&nvmeq->sq_cong)) {
                 struct bio *bio = bio_list_pop(&nvmeq->sq_cong);
                 struct nvme_ns *ns = bio->bi_bdev->bd_disk->private_data;
 
-                if (bio_list_empty(&nvmeq->sq_cong))
+                if (bio_list_empty(&nvmeq->sq_cong) &&
+                                                list_empty(&nvmeq->iod_bio))
                         remove_wait_queue(&nvmeq->sq_full,
                                                         &nvmeq->sq_cong_wait);
                 if (nvme_submit_bio_queue(nvmeq, ns, bio)) {
-                        if (bio_list_empty(&nvmeq->sq_cong))
+                        if (!waitqueue_active(&nvmeq->sq_full))
                                 add_wait_queue(&nvmeq->sq_full,
                                                         &nvmeq->sq_cong_wait);
                         bio_list_add_head(&nvmeq->sq_cong, bio);
@@ -1700,8 +1826,10 @@ static int nvme_kthread(void *data)
                                 queue_work(nvme_workq, &dev->reset_work);
                                 continue;
                         }
+                        rcu_read_lock();
                         for (i = 0; i < dev->queue_count; i++) {
-                                struct nvme_queue *nvmeq = dev->queues[i];
+                                struct nvme_queue *nvmeq =
+                                                rcu_dereference(dev->queues[i]);
                                 if (!nvmeq)
                                         continue;
                                 spin_lock_irq(&nvmeq->q_lock);
@@ -1710,9 +1838,11 @@ static int nvme_kthread(void *data)
                                 nvme_process_cq(nvmeq);
                                 nvme_cancel_ios(nvmeq, true);
                                 nvme_resubmit_bios(nvmeq);
+                                nvme_resubmit_iods(nvmeq);
  unlock:
                                 spin_unlock_irq(&nvmeq->q_lock);
                         }
+                        rcu_read_unlock();
                 }
                 spin_unlock(&dev_list_lock);
                 schedule_timeout(round_jiffies_relative(HZ));
@@ -1787,6 +1917,143 @@ static struct nvme_ns *nvme_alloc_ns(struct nvme_dev *dev, unsigned nsid,
         return NULL;
 }
 
+static int nvme_find_closest_node(int node)
+{
+        int n, val, min_val = INT_MAX, best_node = node;
+
+        for_each_online_node(n) {
+                if (n == node)
+                        continue;
+                val = node_distance(node, n);
+                if (val < min_val) {
+                        min_val = val;
+                        best_node = n;
+                }
+        }
+        return best_node;
+}
+
+static void nvme_set_queue_cpus(cpumask_t *qmask, struct nvme_queue *nvmeq,
+                                                                int count)
+{
+        int cpu;
+        for_each_cpu(cpu, qmask) {
+                if (cpumask_weight(nvmeq->cpu_mask) >= count)
+                        break;
+                if (!cpumask_test_and_set_cpu(cpu, nvmeq->cpu_mask))
+                        *per_cpu_ptr(nvmeq->dev->io_queue, cpu) = nvmeq->qid;
+        }
+}
+
+static void nvme_add_cpus(cpumask_t *mask, const cpumask_t *unassigned_cpus,
+        const cpumask_t *new_mask, struct nvme_queue *nvmeq, int cpus_per_queue)
+{
+        int next_cpu;
+        for_each_cpu(next_cpu, new_mask) {
+                cpumask_or(mask, mask, get_cpu_mask(next_cpu));
+                cpumask_or(mask, mask, topology_thread_cpumask(next_cpu));
+                cpumask_and(mask, mask, unassigned_cpus);
+                nvme_set_queue_cpus(mask, nvmeq, cpus_per_queue);
+        }
+}
+
+static void nvme_create_io_queues(struct nvme_dev *dev)
+{
+        unsigned i, max;
+
+        max = min(dev->max_qid, num_online_cpus());
+        for (i = dev->queue_count; i <= max; i++)
+                if (!nvme_alloc_queue(dev, i, dev->q_depth, i - 1))
+                        break;
+
+        max = min(dev->queue_count - 1, num_online_cpus());
+        for (i = dev->online_queues; i <= max; i++)
+                if (nvme_create_queue(raw_nvmeq(dev, i), i))
+                        break;
+}
+
+/*
+ * If there are fewer queues than online cpus, this will try to optimally
+ * assign a queue to multiple cpus by grouping cpus that are "close" together:
+ * thread siblings, core, socket, closest node, then whatever else is
+ * available.
+ */
+static void nvme_assign_io_queues(struct nvme_dev *dev)
+{
+        unsigned cpu, cpus_per_queue, queues, remainder, i;
+        cpumask_var_t unassigned_cpus;
+
+        nvme_create_io_queues(dev);
+
+        queues = min(dev->online_queues - 1, num_online_cpus());
+        if (!queues)
+                return;
+
+        cpus_per_queue = num_online_cpus() / queues;
+        remainder = queues - (num_online_cpus() - queues * cpus_per_queue);
+
+        if (!alloc_cpumask_var(&unassigned_cpus, GFP_KERNEL))
+                return;
+
+        cpumask_copy(unassigned_cpus, cpu_online_mask);
+        cpu = cpumask_first(unassigned_cpus);
+        for (i = 1; i <= queues; i++) {
+                struct nvme_queue *nvmeq = lock_nvmeq(dev, i);
+                cpumask_t mask;
+
+                cpumask_clear(nvmeq->cpu_mask);
+                if (!cpumask_weight(unassigned_cpus)) {
+                        unlock_nvmeq(nvmeq);
+                        break;
+                }
+
+                mask = *get_cpu_mask(cpu);
+                nvme_set_queue_cpus(&mask, nvmeq, cpus_per_queue);
+                if (cpus_weight(mask) < cpus_per_queue)
+                        nvme_add_cpus(&mask, unassigned_cpus,
+                                topology_thread_cpumask(cpu),
+                                nvmeq, cpus_per_queue);
+                if (cpus_weight(mask) < cpus_per_queue)
+                        nvme_add_cpus(&mask, unassigned_cpus,
+                                topology_core_cpumask(cpu),
+                                nvmeq, cpus_per_queue);
+                if (cpus_weight(mask) < cpus_per_queue)
+                        nvme_add_cpus(&mask, unassigned_cpus,
+                                cpumask_of_node(cpu_to_node(cpu)),
+                                nvmeq, cpus_per_queue);
+                if (cpus_weight(mask) < cpus_per_queue)
+                        nvme_add_cpus(&mask, unassigned_cpus,
+                                cpumask_of_node(
+                                        nvme_find_closest_node(
+                                                cpu_to_node(cpu))),
+                                nvmeq, cpus_per_queue);
+                if (cpus_weight(mask) < cpus_per_queue)
+                        nvme_add_cpus(&mask, unassigned_cpus,
+                                unassigned_cpus,
+                                nvmeq, cpus_per_queue);
+
+                WARN(cpumask_weight(nvmeq->cpu_mask) != cpus_per_queue,
+                        "nvme%d qid:%d mis-matched queue-to-cpu assignment\n",
+                        dev->instance, i);
+
+                irq_set_affinity_hint(dev->entry[nvmeq->cq_vector].vector,
+                                                        nvmeq->cpu_mask);
+                cpumask_andnot(unassigned_cpus, unassigned_cpus,
+                                                nvmeq->cpu_mask);
+                cpu = cpumask_next(cpu, unassigned_cpus);
+                if (remainder && !--remainder)
+                        cpus_per_queue++;
+                unlock_nvmeq(nvmeq);
+        }
+        WARN(cpumask_weight(unassigned_cpus), "nvme%d unassigned online cpus\n",
+                                                                dev->instance);
+        i = 0;
+        cpumask_andnot(unassigned_cpus, cpu_possible_mask, cpu_online_mask);
+        for_each_cpu(cpu, unassigned_cpus)
+                *per_cpu_ptr(dev->io_queue, cpu) = (i++ % queues) + 1;
+        free_cpumask_var(unassigned_cpus);
+}
+
 static int set_queue_count(struct nvme_dev *dev, int count)
 {
         int status;
@@ -1805,13 +2072,26 @@ static size_t db_bar_size(struct nvme_dev *dev, unsigned nr_io_queues)
         return 4096 + ((nr_io_queues + 1) * 8 * dev->db_stride);
 }
 
+static int nvme_cpu_notify(struct notifier_block *self,
+                                unsigned long action, void *hcpu)
+{
+        struct nvme_dev *dev = container_of(self, struct nvme_dev, nb);
+        switch (action) {
+        case CPU_ONLINE:
+        case CPU_DEAD:
+                nvme_assign_io_queues(dev);
+                break;
+        }
+        return NOTIFY_OK;
+}
+
 static int nvme_setup_io_queues(struct nvme_dev *dev)
 {
-        struct nvme_queue *adminq = dev->queues[0];
+        struct nvme_queue *adminq = raw_nvmeq(dev, 0);
         struct pci_dev *pdev = dev->pci_dev;
-        int result, cpu, i, vecs, nr_io_queues, size, q_depth;
+        int result, i, vecs, nr_io_queues, size;
 
-        nr_io_queues = num_online_cpus();
+        nr_io_queues = num_possible_cpus();
         result = set_queue_count(dev, nr_io_queues);
         if (result < 0)
                 return result;
@@ -1830,7 +2110,7 @@ static int nvme_setup_io_queues(struct nvme_dev *dev)
                         size = db_bar_size(dev, nr_io_queues);
                 } while (1);
                 dev->dbs = ((void __iomem *)dev->bar) + 4096;
-                dev->queues[0]->q_db = dev->dbs;
+                adminq->q_db = dev->dbs;
         }
 
         /* Deregister the admin queue's interrupt */
@@ -1856,6 +2136,7 @@ static int nvme_setup_io_queues(struct nvme_dev *dev)
          * number of interrupts.
          */
         nr_io_queues = vecs;
+        dev->max_qid = nr_io_queues;
 
         result = queue_request_irq(dev, adminq, adminq->irqname);
         if (result) {
@@ -1864,49 +2145,13 @@ static int nvme_setup_io_queues(struct nvme_dev *dev)
         }
 
         /* Free previously allocated queues that are no longer usable */
-        spin_lock(&dev_list_lock);
-        for (i = dev->queue_count - 1; i > nr_io_queues; i--) {
-                struct nvme_queue *nvmeq = dev->queues[i];
-
-                spin_lock_irq(&nvmeq->q_lock);
-                nvme_cancel_ios(nvmeq, false);
-                spin_unlock_irq(&nvmeq->q_lock);
-
-                nvme_free_queue(nvmeq);
-                dev->queue_count--;
-                dev->queues[i] = NULL;
-        }
-        spin_unlock(&dev_list_lock);
-
-        cpu = cpumask_first(cpu_online_mask);
-        for (i = 0; i < nr_io_queues; i++) {
-                irq_set_affinity_hint(dev->entry[i].vector, get_cpu_mask(cpu));
-                cpu = cpumask_next(cpu, cpu_online_mask);
-        }
-
-        q_depth = min_t(int, NVME_CAP_MQES(readq(&dev->bar->cap)) + 1,
-                                                                NVME_Q_DEPTH);
-        for (i = dev->queue_count - 1; i < nr_io_queues; i++) {
-                dev->queues[i + 1] = nvme_alloc_queue(dev, i + 1, q_depth, i);
-                if (!dev->queues[i + 1]) {
-                        result = -ENOMEM;
-                        goto free_queues;
-                }
-        }
-
-        for (; i < num_possible_cpus(); i++) {
-                int target = i % rounddown_pow_of_two(dev->queue_count - 1);
-                dev->queues[i + 1] = dev->queues[target + 1];
-        }
+        nvme_free_queues(dev, nr_io_queues + 1);
+        nvme_assign_io_queues(dev);
 
-        for (i = 1; i < dev->queue_count; i++) {
-                result = nvme_create_queue(dev->queues[i], i);
-                if (result) {
-                        for (--i; i > 0; i--)
-                                nvme_disable_queue(dev, i);
-                        goto free_queues;
-                }
-        }
+        dev->nb.notifier_call = &nvme_cpu_notify;
+        result = register_hotcpu_notifier(&dev->nb);
+        if (result)
+                goto free_queues;
 
         return 0;
 
@@ -1985,6 +2230,7 @@ static int nvme_dev_add(struct nvme_dev *dev)
 
 static int nvme_dev_map(struct nvme_dev *dev)
 {
+        u64 cap;
         int bars, result = -ENOMEM;
         struct pci_dev *pdev = dev->pci_dev;
 
@@ -2008,7 +2254,9 @@ static int nvme_dev_map(struct nvme_dev *dev)
                 result = -ENODEV;
                 goto unmap;
         }
-        dev->db_stride = 1 << NVME_CAP_STRIDE(readq(&dev->bar->cap));
+        cap = readq(&dev->bar->cap);
+        dev->q_depth = min_t(int, NVME_CAP_MQES(cap) + 1, NVME_Q_DEPTH);
+        dev->db_stride = 1 << NVME_CAP_STRIDE(cap);
         dev->dbs = ((void __iomem *)dev->bar) + 4096;
 
         return 0;
@@ -2164,7 +2412,7 @@ static void nvme_disable_io_queues(struct nvme_dev *dev)
         atomic_set(&dq.refcount, 0);
         dq.worker = &worker;
         for (i = dev->queue_count - 1; i > 0; i--) {
-                struct nvme_queue *nvmeq = dev->queues[i];
+                struct nvme_queue *nvmeq = raw_nvmeq(dev, i);
 
                 if (nvme_suspend_queue(nvmeq))
                         continue;
@@ -2177,19 +2425,38 @@ static void nvme_disable_io_queues(struct nvme_dev *dev)
         kthread_stop(kworker_task);
 }
 
+/*
+* Remove the node from the device list and check
+* for whether or not we need to stop the nvme_thread.
+*/
+static void nvme_dev_list_remove(struct nvme_dev *dev)
+{
+        struct task_struct *tmp = NULL;
+
+        spin_lock(&dev_list_lock);
+        list_del_init(&dev->node);
+        if (list_empty(&dev_list) && !IS_ERR_OR_NULL(nvme_thread)) {
+                tmp = nvme_thread;
+                nvme_thread = NULL;
+        }
+        spin_unlock(&dev_list_lock);
+
+        if (tmp)
+                kthread_stop(tmp);
+}
+
 static void nvme_dev_shutdown(struct nvme_dev *dev)
 {
         int i;
 
         dev->initialized = 0;
+        unregister_hotcpu_notifier(&dev->nb);
 
-        spin_lock(&dev_list_lock);
-        list_del_init(&dev->node);
-        spin_unlock(&dev_list_lock);
+        nvme_dev_list_remove(dev);
 
         if (!dev->bar || (dev->bar && readl(&dev->bar->csts) == -1)) {
                 for (i = dev->queue_count - 1; i >= 0; i--) {
-                        struct nvme_queue *nvmeq = dev->queues[i];
+                        struct nvme_queue *nvmeq = raw_nvmeq(dev, i);
                         nvme_suspend_queue(nvmeq);
                         nvme_clear_queue(nvmeq);
                 }
@@ -2282,6 +2549,7 @@ static void nvme_free_dev(struct kref *kref)
         struct nvme_dev *dev = container_of(kref, struct nvme_dev, kref);
 
         nvme_free_namespaces(dev);
+        free_percpu(dev->io_queue);
         kfree(dev->queues);
         kfree(dev->entry);
         kfree(dev);
@@ -2325,6 +2593,7 @@ static const struct file_operations nvme_dev_fops = {
 static int nvme_dev_start(struct nvme_dev *dev)
 {
         int result;
+        bool start_thread = false;
 
         result = nvme_dev_map(dev);
         if (result)
@@ -2335,9 +2604,24 @@ static int nvme_dev_start(struct nvme_dev *dev)
                 goto unmap;
 
         spin_lock(&dev_list_lock);
+        if (list_empty(&dev_list) && IS_ERR_OR_NULL(nvme_thread)) {
+                start_thread = true;
+                nvme_thread = NULL;
+        }
         list_add(&dev->node, &dev_list);
         spin_unlock(&dev_list_lock);
 
+        if (start_thread) {
+                nvme_thread = kthread_run(nvme_kthread, NULL, "nvme");
+                wake_up(&nvme_kthread_wait);
+        } else
+                wait_event_killable(nvme_kthread_wait, nvme_thread);
+
+        if (IS_ERR_OR_NULL(nvme_thread)) {
+                result = nvme_thread ? PTR_ERR(nvme_thread) : -EINTR;
+                goto disable;
+        }
+
         result = nvme_setup_io_queues(dev);
         if (result && result != -EBUSY)
                 goto disable;
@@ -2346,9 +2630,7 @@ static int nvme_dev_start(struct nvme_dev *dev)
 
  disable:
         nvme_disable_queue(dev, 0);
-        spin_lock(&dev_list_lock);
-        list_del_init(&dev->node);
-        spin_unlock(&dev_list_lock);
+        nvme_dev_list_remove(dev);
  unmap:
         nvme_dev_unmap(dev);
         return result;
@@ -2367,18 +2649,10 @@ static int nvme_remove_dead_ctrl(void *arg)
 
 static void nvme_remove_disks(struct work_struct *ws)
 {
-        int i;
         struct nvme_dev *dev = container_of(ws, struct nvme_dev, reset_work);
 
         nvme_dev_remove(dev);
-        spin_lock(&dev_list_lock);
-        for (i = dev->queue_count - 1; i > 0; i--) {
-                BUG_ON(!dev->queues[i] || !dev->queues[i]->q_suspended);
-                nvme_free_queue(dev->queues[i]);
-                dev->queue_count--;
-                dev->queues[i] = NULL;
-        }
-        spin_unlock(&dev_list_lock);
+        nvme_free_queues(dev, 1);
 }
 
 static int nvme_dev_resume(struct nvme_dev *dev)
@@ -2441,6 +2715,9 @@ static int nvme_probe(struct pci_dev *pdev, const struct pci_device_id *id)
                                                                 GFP_KERNEL);
         if (!dev->queues)
                 goto free;
+        dev->io_queue = alloc_percpu(unsigned short);
+        if (!dev->io_queue)
+                goto free;
 
         INIT_LIST_HEAD(&dev->namespaces);
         dev->reset_workfn = nvme_reset_failed_dev;
@@ -2455,6 +2732,7 @@ static int nvme_probe(struct pci_dev *pdev, const struct pci_device_id *id)
         if (result)
                 goto release;
 
+        kref_init(&dev->kref);
         result = nvme_dev_start(dev);
         if (result) {
                 if (result == -EBUSY)
@@ -2462,7 +2740,6 @@ static int nvme_probe(struct pci_dev *pdev, const struct pci_device_id *id)
                 goto release_pools;
         }
 
-        kref_init(&dev->kref);
         result = nvme_dev_add(dev);
         if (result)
                 goto shutdown;
@@ -2491,6 +2768,7 @@ static int nvme_probe(struct pci_dev *pdev, const struct pci_device_id *id)
  release:
         nvme_release_instance(dev);
  free:
+        free_percpu(dev->io_queue);
         kfree(dev->queues);
         kfree(dev->entry);
         kfree(dev);
@@ -2517,6 +2795,7 @@ static void nvme_remove(struct pci_dev *pdev)
         nvme_dev_remove(dev);
         nvme_dev_shutdown(dev);
         nvme_free_queues(dev, 0);
+        rcu_barrier();
         nvme_release_instance(dev);
         nvme_release_prp_pools(dev);
         kref_put(&dev->kref, nvme_free_dev);
@@ -2529,6 +2808,7 @@ static void nvme_remove(struct pci_dev *pdev)
 #define nvme_slot_reset NULL
 #define nvme_error_resume NULL
 
+#ifdef CONFIG_PM_SLEEP
 static int nvme_suspend(struct device *dev)
 {
         struct pci_dev *pdev = to_pci_dev(dev);
@@ -2549,6 +2829,7 @@ static int nvme_resume(struct device *dev)
         }
         return 0;
 }
+#endif
 
 static SIMPLE_DEV_PM_OPS(nvme_dev_pm_ops, nvme_suspend, nvme_resume);
 
@@ -2563,7 +2844,7 @@ static const struct pci_error_handlers nvme_err_handler = {
 /* Move to pci_ids.h later */
 #define PCI_CLASS_STORAGE_EXPRESS       0x010802
 
-static DEFINE_PCI_DEVICE_TABLE(nvme_id_table) = {
+static const struct pci_device_id nvme_id_table[] = {
         { PCI_DEVICE_CLASS(PCI_CLASS_STORAGE_EXPRESS, 0xffffff) },
         { 0, }
 };
@@ -2585,14 +2866,11 @@ static int __init nvme_init(void)
 {
         int result;
 
-        nvme_thread = kthread_run(nvme_kthread, NULL, "nvme");
-        if (IS_ERR(nvme_thread))
-                return PTR_ERR(nvme_thread);
+        init_waitqueue_head(&nvme_kthread_wait);
 
-        result = -ENOMEM;
         nvme_workq = create_singlethread_workqueue("nvme");
         if (!nvme_workq)
-                goto kill_kthread;
+                return -ENOMEM;
 
         result = register_blkdev(nvme_major, "nvme");
         if (result < 0)
@@ -2609,8 +2887,6 @@ static int __init nvme_init(void)
         unregister_blkdev(nvme_major, "nvme");
  kill_workq:
         destroy_workqueue(nvme_workq);
- kill_kthread:
-        kthread_stop(nvme_thread);
         return result;
 }
 
@@ -2619,11 +2895,11 @@ static void __exit nvme_exit(void)
         pci_unregister_driver(&nvme_driver);
         unregister_blkdev(nvme_major, "nvme");
         destroy_workqueue(nvme_workq);
-        kthread_stop(nvme_thread);
+        BUG_ON(nvme_thread && !IS_ERR(nvme_thread));
 }
 
 MODULE_AUTHOR("Matthew Wilcox <willy@linux.intel.com>");
 MODULE_LICENSE("GPL");
-MODULE_VERSION("0.8");
+MODULE_VERSION("0.9");
 module_init(nvme_init);
 module_exit(nvme_exit);
diff --git a/drivers/block/nvme-scsi.c b/drivers/block/nvme-scsi.c
index 4a0ceb64e269..2c3f5be06da1 100644
--- a/drivers/block/nvme-scsi.c
+++ b/drivers/block/nvme-scsi.c
@@ -1562,13 +1562,14 @@ static int nvme_trans_send_fw_cmd(struct nvme_ns *ns, struct sg_io_hdr *hdr,
                         res = PTR_ERR(iod);
                         goto out;
                 }
-                length = nvme_setup_prps(dev, &c.common, iod, tot_len,
-                                                                GFP_KERNEL);
+                length = nvme_setup_prps(dev, iod, tot_len, GFP_KERNEL);
                 if (length != tot_len) {
                         res = -ENOMEM;
                         goto out_unmap;
                 }
 
+                c.dlfw.prp1 = cpu_to_le64(sg_dma_address(iod->sg));
+                c.dlfw.prp2 = cpu_to_le64(iod->first_dma);
                 c.dlfw.numd = cpu_to_le32((tot_len/BYTES_TO_DWORDS) - 1);
                 c.dlfw.offset = cpu_to_le32(offset/BYTES_TO_DWORDS);
         } else if (opcode == nvme_admin_activate_fw) {
@@ -2033,7 +2034,6 @@ static int nvme_trans_do_nvme_io(struct nvme_ns *ns, struct sg_io_hdr *hdr,
         int res = SNTI_TRANSLATION_SUCCESS;
         int nvme_sc;
         struct nvme_dev *dev = ns->dev;
-        struct nvme_queue *nvmeq;
         u32 num_cmds;
         struct nvme_iod *iod;
         u64 unit_len;
@@ -2045,7 +2045,7 @@ static int nvme_trans_do_nvme_io(struct nvme_ns *ns, struct sg_io_hdr *hdr,
         struct nvme_command c;
         u8 opcode = (is_write ? nvme_cmd_write : nvme_cmd_read);
         u16 control;
-        u32 max_blocks = nvme_block_nr(ns, dev->max_hw_sectors);
+        u32 max_blocks = queue_max_hw_sectors(ns->queue);
 
         num_cmds = nvme_trans_io_get_num_cmds(hdr, cdb_info, max_blocks);
 
@@ -2093,8 +2093,7 @@ static int nvme_trans_do_nvme_io(struct nvme_ns *ns, struct sg_io_hdr *hdr,
                         res = PTR_ERR(iod);
                         goto out;
                 }
-                retcode = nvme_setup_prps(dev, &c.common, iod, unit_len,
-                                                        GFP_KERNEL);
+                retcode = nvme_setup_prps(dev, iod, unit_len, GFP_KERNEL);
                 if (retcode != unit_len) {
                         nvme_unmap_user_pages(dev,
                                 (is_write) ? DMA_TO_DEVICE : DMA_FROM_DEVICE,
@@ -2103,21 +2102,12 @@ static int nvme_trans_do_nvme_io(struct nvme_ns *ns, struct sg_io_hdr *hdr,
                         res = -ENOMEM;
                         goto out;
                 }
+                c.rw.prp1 = cpu_to_le64(sg_dma_address(iod->sg));
+                c.rw.prp2 = cpu_to_le64(iod->first_dma);
 
                 nvme_offset += unit_num_blocks;
 
-                nvmeq = get_nvmeq(dev);
-                /*
-                 * Since nvme_submit_sync_cmd sleeps, we can't keep
-                 * preemption disabled.  We may be preempted at any
-                 * point, and be rescheduled to a different CPU.  That
-                 * will cause cacheline bouncing, but no additional
-                 * races since q_lock already protects against other
-                 * CPUs.
-                 */
-                put_nvmeq(nvmeq);
-                nvme_sc = nvme_submit_sync_cmd(nvmeq, &c, NULL,
-                                                NVME_IO_TIMEOUT);
+                nvme_sc = nvme_submit_io_cmd(dev, &c, NULL);
                 if (nvme_sc != NVME_SC_SUCCESS) {
                         nvme_unmap_user_pages(dev,
                                 (is_write) ? DMA_TO_DEVICE : DMA_FROM_DEVICE,
@@ -2644,7 +2634,6 @@ static int nvme_trans_start_stop(struct nvme_ns *ns, struct sg_io_hdr *hdr,
 {
         int res = SNTI_TRANSLATION_SUCCESS;
         int nvme_sc;
-        struct nvme_queue *nvmeq;
         struct nvme_command c;
         u8 immed, pcmod, pc, no_flush, start;
 
@@ -2671,10 +2660,7 @@ static int nvme_trans_start_stop(struct nvme_ns *ns, struct sg_io_hdr *hdr,
                         c.common.opcode = nvme_cmd_flush;
                         c.common.nsid = cpu_to_le32(ns->ns_id);
 
-                        nvmeq = get_nvmeq(ns->dev);
-                        put_nvmeq(nvmeq);
-                        nvme_sc = nvme_submit_sync_cmd(nvmeq, &c, NULL, NVME_IO_TIMEOUT);
-
+                        nvme_sc = nvme_submit_io_cmd(ns->dev, &c, NULL);
                         res = nvme_trans_status_code(hdr, nvme_sc);
                         if (res)
                                 goto out;
@@ -2697,15 +2683,12 @@ static int nvme_trans_synchronize_cache(struct nvme_ns *ns,
         int res = SNTI_TRANSLATION_SUCCESS;
         int nvme_sc;
         struct nvme_command c;
-        struct nvme_queue *nvmeq;
 
         memset(&c, 0, sizeof(c));
         c.common.opcode = nvme_cmd_flush;
         c.common.nsid = cpu_to_le32(ns->ns_id);
 
-        nvmeq = get_nvmeq(ns->dev);
-        put_nvmeq(nvmeq);
-        nvme_sc = nvme_submit_sync_cmd(nvmeq, &c, NULL, NVME_IO_TIMEOUT);
+        nvme_sc = nvme_submit_io_cmd(ns->dev, &c, NULL);
 
         res = nvme_trans_status_code(hdr, nvme_sc);
         if (res)
@@ -2872,7 +2855,6 @@ static int nvme_trans_unmap(struct nvme_ns *ns, struct sg_io_hdr *hdr,
         struct nvme_dev *dev = ns->dev;
         struct scsi_unmap_parm_list *plist;
         struct nvme_dsm_range *range;
-        struct nvme_queue *nvmeq;
         struct nvme_command c;
         int i, nvme_sc, res = -ENOMEM;
         u16 ndesc, list_len;
@@ -2914,10 +2896,7 @@ static int nvme_trans_unmap(struct nvme_ns *ns, struct sg_io_hdr *hdr,
         c.dsm.nr = cpu_to_le32(ndesc - 1);
         c.dsm.attributes = cpu_to_le32(NVME_DSMGMT_AD);
 
-        nvmeq = get_nvmeq(dev);
-        put_nvmeq(nvmeq);
-
-        nvme_sc = nvme_submit_sync_cmd(nvmeq, &c, NULL, NVME_IO_TIMEOUT);
+        nvme_sc = nvme_submit_io_cmd(dev, &c, NULL);
         res = nvme_trans_status_code(hdr, nvme_sc);
 
         dma_free_coherent(&dev->pci_dev->dev, ndesc * sizeof(*range),
diff --git a/drivers/char/hw_random/bcm2835-rng.c b/drivers/char/hw_random/bcm2835-rng.c
index 8c3b255e629a..e900961cdd2e 100644
--- a/drivers/char/hw_random/bcm2835-rng.c
+++ b/drivers/char/hw_random/bcm2835-rng.c
@@ -61,18 +61,18 @@ static int bcm2835_rng_probe(struct platform_device *pdev)
         }
         bcm2835_rng_ops.priv = (unsigned long)rng_base;
 
+        /* set warm-up count & enable */
+        __raw_writel(RNG_WARMUP_COUNT, rng_base + RNG_STATUS);
+        __raw_writel(RNG_RBGEN, rng_base + RNG_CTRL);
+
         /* register driver */
         err = hwrng_register(&bcm2835_rng_ops);
         if (err) {
                 dev_err(dev, "hwrng registration failed\n");
                 iounmap(rng_base);
-        } else {
+        } else
                 dev_info(dev, "hwrng registered\n");
 
-                /* set warm-up count & enable */
-                __raw_writel(RNG_WARMUP_COUNT, rng_base + RNG_STATUS);
-                __raw_writel(RNG_RBGEN, rng_base + RNG_CTRL);
-        }
         return err;
 }
 
diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c
index 6928d094451d..60aafb8a1f2e 100644
--- a/drivers/char/virtio_console.c
+++ b/drivers/char/virtio_console.c
@@ -901,9 +901,9 @@ static int pipe_to_sg(struct pipe_inode_info *pipe, struct pipe_buffer *buf,
                 if (len + offset > PAGE_SIZE)
                         len = PAGE_SIZE - offset;
 
-                src = buf->ops->map(pipe, buf, 1);
+                src = kmap_atomic(buf->page);
                 memcpy(page_address(page) + offset, src + buf->offset, len);
-                buf->ops->unmap(pipe, buf, src);
+                kunmap_atomic(src);
 
                 sg_set_page(&(sgl->sg[sgl->n]), page, len, offset);
         }
diff --git a/drivers/infiniband/ulp/isert/ib_isert.c b/drivers/infiniband/ulp/isert/ib_isert.c
index 8ee228e9ab5a..c98fdb185931 100644
--- a/drivers/infiniband/ulp/isert/ib_isert.c
+++ b/drivers/infiniband/ulp/isert/ib_isert.c
@@ -51,6 +51,8 @@ isert_unreg_rdma(struct isert_cmd *isert_cmd, struct isert_conn *isert_conn);
 static int
 isert_reg_rdma(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
                struct isert_rdma_wr *wr);
+static int
+isert_put_response(struct iscsi_conn *conn, struct iscsi_cmd *cmd);
 
 static void
 isert_qp_event_callback(struct ib_event *e, void *context)
@@ -87,7 +89,8 @@ isert_query_device(struct ib_device *ib_dev, struct ib_device_attr *devattr)
 }
 
 static int
-isert_conn_setup_qp(struct isert_conn *isert_conn, struct rdma_cm_id *cma_id)
+isert_conn_setup_qp(struct isert_conn *isert_conn, struct rdma_cm_id *cma_id,
+                    u8 protection)
 {
         struct isert_device *device = isert_conn->conn_device;
         struct ib_qp_init_attr attr;
@@ -119,6 +122,8 @@ isert_conn_setup_qp(struct isert_conn *isert_conn, struct rdma_cm_id *cma_id)
         attr.cap.max_recv_sge = 1;
         attr.sq_sig_type = IB_SIGNAL_REQ_WR;
         attr.qp_type = IB_QPT_RC;
+        if (protection)
+                attr.create_flags |= IB_QP_CREATE_SIGNATURE_EN;
 
         pr_debug("isert_conn_setup_qp cma_id->device: %p\n",
                  cma_id->device);
@@ -226,7 +231,8 @@ isert_create_device_ib_res(struct isert_device *device)
                 return ret;
 
         /* asign function handlers */
-        if (dev_attr->device_cap_flags & IB_DEVICE_MEM_MGT_EXTENSIONS) {
+        if (dev_attr->device_cap_flags & IB_DEVICE_MEM_MGT_EXTENSIONS &&
+            dev_attr->device_cap_flags & IB_DEVICE_SIGNATURE_HANDOVER) {
                 device->use_fastreg = 1;
                 device->reg_rdma_mem = isert_reg_rdma;
                 device->unreg_rdma_mem = isert_unreg_rdma;
@@ -236,13 +242,18 @@ isert_create_device_ib_res(struct isert_device *device)
                 device->unreg_rdma_mem = isert_unmap_cmd;
         }
 
+        /* Check signature cap */
+        device->pi_capable = dev_attr->device_cap_flags &
+                             IB_DEVICE_SIGNATURE_HANDOVER ? true : false;
+
         device->cqs_used = min_t(int, num_online_cpus(),
                                  device->ib_device->num_comp_vectors);
         device->cqs_used = min(ISERT_MAX_CQ, device->cqs_used);
         pr_debug("Using %d CQs, device %s supports %d vectors support "
-                 "Fast registration %d\n",
+                 "Fast registration %d pi_capable %d\n",
                  device->cqs_used, device->ib_device->name,
-                 device->ib_device->num_comp_vectors, device->use_fastreg);
+                 device->ib_device->num_comp_vectors, device->use_fastreg,
+                 device->pi_capable);
         device->cq_desc = kzalloc(sizeof(struct isert_cq_desc) *
                                 device->cqs_used, GFP_KERNEL);
         if (!device->cq_desc) {
@@ -395,6 +406,12 @@ isert_conn_free_fastreg_pool(struct isert_conn *isert_conn)
                 list_del(&fr_desc->list);
                 ib_free_fast_reg_page_list(fr_desc->data_frpl);
                 ib_dereg_mr(fr_desc->data_mr);
+                if (fr_desc->pi_ctx) {
+                        ib_free_fast_reg_page_list(fr_desc->pi_ctx->prot_frpl);
+                        ib_dereg_mr(fr_desc->pi_ctx->prot_mr);
+                        ib_destroy_mr(fr_desc->pi_ctx->sig_mr);
+                        kfree(fr_desc->pi_ctx);
+                }
                 kfree(fr_desc);
                 ++i;
         }
@@ -406,8 +423,10 @@ isert_conn_free_fastreg_pool(struct isert_conn *isert_conn)
 
 static int
 isert_create_fr_desc(struct ib_device *ib_device, struct ib_pd *pd,
-                     struct fast_reg_descriptor *fr_desc)
+                     struct fast_reg_descriptor *fr_desc, u8 protection)
 {
+        int ret;
+
         fr_desc->data_frpl = ib_alloc_fast_reg_page_list(ib_device,
                                                          ISCSI_ISER_SG_TABLESIZE);
         if (IS_ERR(fr_desc->data_frpl)) {
@@ -420,27 +439,88 @@ isert_create_fr_desc(struct ib_device *ib_device, struct ib_pd *pd,
         if (IS_ERR(fr_desc->data_mr)) {
                 pr_err("Failed to allocate data frmr err=%ld\n",
                        PTR_ERR(fr_desc->data_mr));
-                ib_free_fast_reg_page_list(fr_desc->data_frpl);
-                return PTR_ERR(fr_desc->data_mr);
+                ret = PTR_ERR(fr_desc->data_mr);
+                goto err_data_frpl;
         }
         pr_debug("Create fr_desc %p page_list %p\n",
                  fr_desc, fr_desc->data_frpl->page_list);
+        fr_desc->ind |= ISERT_DATA_KEY_VALID;
+
+        if (protection) {
+                struct ib_mr_init_attr mr_init_attr = {0};
+                struct pi_context *pi_ctx;
+
+                fr_desc->pi_ctx = kzalloc(sizeof(*fr_desc->pi_ctx), GFP_KERNEL);
+                if (!fr_desc->pi_ctx) {
+                        pr_err("Failed to allocate pi context\n");
+                        ret = -ENOMEM;
+                        goto err_data_mr;
+                }
+                pi_ctx = fr_desc->pi_ctx;
+
+                pi_ctx->prot_frpl = ib_alloc_fast_reg_page_list(ib_device,
+                                                    ISCSI_ISER_SG_TABLESIZE);
+                if (IS_ERR(pi_ctx->prot_frpl)) {
+                        pr_err("Failed to allocate prot frpl err=%ld\n",
+                               PTR_ERR(pi_ctx->prot_frpl));
+                        ret = PTR_ERR(pi_ctx->prot_frpl);
+                        goto err_pi_ctx;
+                }
 
-        fr_desc->valid = true;
+                pi_ctx->prot_mr = ib_alloc_fast_reg_mr(pd, ISCSI_ISER_SG_TABLESIZE);
+                if (IS_ERR(pi_ctx->prot_mr)) {
+                        pr_err("Failed to allocate prot frmr err=%ld\n",
+                               PTR_ERR(pi_ctx->prot_mr));
+                        ret = PTR_ERR(pi_ctx->prot_mr);
+                        goto err_prot_frpl;
+                }
+                fr_desc->ind |= ISERT_PROT_KEY_VALID;
+
+                mr_init_attr.max_reg_descriptors = 2;
+                mr_init_attr.flags |= IB_MR_SIGNATURE_EN;
+                pi_ctx->sig_mr = ib_create_mr(pd, &mr_init_attr);
+                if (IS_ERR(pi_ctx->sig_mr)) {
+                        pr_err("Failed to allocate signature enabled mr err=%ld\n",
+                               PTR_ERR(pi_ctx->sig_mr));
+                        ret = PTR_ERR(pi_ctx->sig_mr);
+                        goto err_prot_mr;
+                }
+                fr_desc->ind |= ISERT_SIG_KEY_VALID;
+        }
+        fr_desc->ind &= ~ISERT_PROTECTED;
 
         return 0;
+err_prot_mr:
+        ib_dereg_mr(fr_desc->pi_ctx->prot_mr);
+err_prot_frpl:
+        ib_free_fast_reg_page_list(fr_desc->pi_ctx->prot_frpl);
+err_pi_ctx:
+        kfree(fr_desc->pi_ctx);
+err_data_mr:
+        ib_dereg_mr(fr_desc->data_mr);
+err_data_frpl:
+        ib_free_fast_reg_page_list(fr_desc->data_frpl);
+
+        return ret;
 }
 
 static int
-isert_conn_create_fastreg_pool(struct isert_conn *isert_conn)
+isert_conn_create_fastreg_pool(struct isert_conn *isert_conn, u8 pi_support)
 {
         struct fast_reg_descriptor *fr_desc;
         struct isert_device *device = isert_conn->conn_device;
-        int i, ret;
+        struct se_session *se_sess = isert_conn->conn->sess->se_sess;
+        struct se_node_acl *se_nacl = se_sess->se_node_acl;
+        int i, ret, tag_num;
+        /*
+         * Setup the number of FRMRs based upon the number of tags
+         * available to session in iscsi_target_locate_portal().
+         */
+        tag_num = max_t(u32, ISCSIT_MIN_TAGS, se_nacl->queue_depth);
+        tag_num = (tag_num * 2) + ISCSIT_EXTRA_TAGS;
 
-        INIT_LIST_HEAD(&isert_conn->conn_fr_pool);
         isert_conn->conn_fr_pool_size = 0;
-        for (i = 0; i < ISCSI_DEF_XMIT_CMDS_MAX; i++) {
+        for (i = 0; i < tag_num; i++) {
                 fr_desc = kzalloc(sizeof(*fr_desc), GFP_KERNEL);
                 if (!fr_desc) {
                         pr_err("Failed to allocate fast_reg descriptor\n");
@@ -449,7 +529,8 @@ isert_conn_create_fastreg_pool(struct isert_conn *isert_conn)
                 }
 
                 ret = isert_create_fr_desc(device->ib_device,
-                                           isert_conn->conn_pd, fr_desc);
+                                           isert_conn->conn_pd, fr_desc,
+                                           pi_support);
                 if (ret) {
                         pr_err("Failed to create fastreg descriptor err=%d\n",
                                ret);
@@ -480,6 +561,7 @@ isert_connect_request(struct rdma_cm_id *cma_id, struct rdma_cm_event *event)
         struct isert_device *device;
         struct ib_device *ib_dev = cma_id->device;
         int ret = 0;
+        u8 pi_support = np->tpg_np->tpg->tpg_attrib.t10_pi;
 
         pr_debug("Entering isert_connect_request cma_id: %p, context: %p\n",
                  cma_id, cma_id->context);
@@ -498,6 +580,7 @@ isert_connect_request(struct rdma_cm_id *cma_id, struct rdma_cm_event *event)
         kref_get(&isert_conn->conn_kref);
         mutex_init(&isert_conn->conn_mutex);
         spin_lock_init(&isert_conn->conn_lock);
+        INIT_LIST_HEAD(&isert_conn->conn_fr_pool);
 
         cma_id->context = isert_conn;
         isert_conn->conn_cm_id = cma_id;
@@ -569,16 +652,13 @@ isert_connect_request(struct rdma_cm_id *cma_id, struct rdma_cm_event *event)
                 goto out_mr;
         }
 
-        if (device->use_fastreg) {
-                ret = isert_conn_create_fastreg_pool(isert_conn);
-                if (ret) {
-                        pr_err("Conn: %p failed to create fastreg pool\n",
-                               isert_conn);
-                        goto out_fastreg;
-                }
+        if (pi_support && !device->pi_capable) {
+                pr_err("Protection information requested but not supported\n");
+                ret = -EINVAL;
+                goto out_mr;
         }
 
-        ret = isert_conn_setup_qp(isert_conn, cma_id);
+        ret = isert_conn_setup_qp(isert_conn, cma_id, pi_support);
         if (ret)
                 goto out_conn_dev;
 
@@ -591,9 +671,6 @@ isert_connect_request(struct rdma_cm_id *cma_id, struct rdma_cm_event *event)
         return 0;
 
 out_conn_dev:
-        if (device->use_fastreg)
-                isert_conn_free_fastreg_pool(isert_conn);
-out_fastreg:
         ib_dereg_mr(isert_conn->conn_mr);
 out_mr:
         ib_dealloc_pd(isert_conn->conn_pd);
@@ -967,6 +1044,18 @@ isert_put_login_tx(struct iscsi_conn *conn, struct iscsi_login *login,
         }
         if (!login->login_failed) {
                 if (login->login_complete) {
+                        if (isert_conn->conn_device->use_fastreg) {
+                                u8 pi_support = login->np->tpg_np->tpg->tpg_attrib.t10_pi;
+
+                                ret = isert_conn_create_fastreg_pool(isert_conn,
+                                                                     pi_support);
+                                if (ret) {
+                                        pr_err("Conn: %p failed to create"
+                                               " fastreg pool\n", isert_conn);
+                                        return ret;
+                                }
+                        }
+
                         ret = isert_alloc_rx_descriptors(isert_conn);
                         if (ret)
                                 return ret;
@@ -1392,19 +1481,60 @@ isert_rx_completion(struct iser_rx_desc *desc, struct isert_conn *isert_conn,
         }
 }
 
+static int
+isert_map_data_buf(struct isert_conn *isert_conn, struct isert_cmd *isert_cmd,
+                   struct scatterlist *sg, u32 nents, u32 length, u32 offset,
+                   enum iser_ib_op_code op, struct isert_data_buf *data)
+{
+        struct ib_device *ib_dev = isert_conn->conn_cm_id->device;
+
+        data->dma_dir = op == ISER_IB_RDMA_WRITE ?
+                              DMA_TO_DEVICE : DMA_FROM_DEVICE;
+
+        data->len = length - offset;
+        data->offset = offset;
+        data->sg_off = data->offset / PAGE_SIZE;
+
+        data->sg = &sg[data->sg_off];
+        data->nents = min_t(unsigned int, nents - data->sg_off,
+                                          ISCSI_ISER_SG_TABLESIZE);
+        data->len = min_t(unsigned int, data->len, ISCSI_ISER_SG_TABLESIZE *
+                                        PAGE_SIZE);
+
+        data->dma_nents = ib_dma_map_sg(ib_dev, data->sg, data->nents,
+                                        data->dma_dir);
+        if (unlikely(!data->dma_nents)) {
+                pr_err("Cmd: unable to dma map SGs %p\n", sg);
+                return -EINVAL;
+        }
+
+        pr_debug("Mapped cmd: %p count: %u sg: %p sg_nents: %u rdma_len %d\n",
+                 isert_cmd, data->dma_nents, data->sg, data->nents, data->len);
+
+        return 0;
+}
+
+static void
+isert_unmap_data_buf(struct isert_conn *isert_conn, struct isert_data_buf *data)
+{
+        struct ib_device *ib_dev = isert_conn->conn_cm_id->device;
+
+        ib_dma_unmap_sg(ib_dev, data->sg, data->nents, data->dma_dir);
+        memset(data, 0, sizeof(*data));
+}
+
+
+
 static void
 isert_unmap_cmd(struct isert_cmd *isert_cmd, struct isert_conn *isert_conn)
 {
         struct isert_rdma_wr *wr = &isert_cmd->rdma_wr;
-        struct ib_device *ib_dev = isert_conn->conn_cm_id->device;
 
         pr_debug("isert_unmap_cmd: %p\n", isert_cmd);
-        if (wr->sge) {
+
+        if (wr->data.sg) {
                 pr_debug("isert_unmap_cmd: %p unmap_sg op\n", isert_cmd);
-                ib_dma_unmap_sg(ib_dev, wr->sge, wr->num_sge,
-                                (wr->iser_ib_op == ISER_IB_RDMA_WRITE) ?
-                                DMA_TO_DEVICE : DMA_FROM_DEVICE);
-                wr->sge = NULL;
+                isert_unmap_data_buf(isert_conn, &wr->data);
         }
 
         if (wr->send_wr) {
@@ -1424,7 +1554,6 @@ static void
 isert_unreg_rdma(struct isert_cmd *isert_cmd, struct isert_conn *isert_conn)
 {
         struct isert_rdma_wr *wr = &isert_cmd->rdma_wr;
-        struct ib_device *ib_dev = isert_conn->conn_cm_id->device;
         LIST_HEAD(unmap_list);
 
         pr_debug("unreg_fastreg_cmd: %p\n", isert_cmd);
@@ -1432,18 +1561,19 @@ isert_unreg_rdma(struct isert_cmd *isert_cmd, struct isert_conn *isert_conn)
         if (wr->fr_desc) {
                 pr_debug("unreg_fastreg_cmd: %p free fr_desc %p\n",
                          isert_cmd, wr->fr_desc);
+                if (wr->fr_desc->ind & ISERT_PROTECTED) {
+                        isert_unmap_data_buf(isert_conn, &wr->prot);
+                        wr->fr_desc->ind &= ~ISERT_PROTECTED;
+                }
                 spin_lock_bh(&isert_conn->conn_lock);
                 list_add_tail(&wr->fr_desc->list, &isert_conn->conn_fr_pool);
                 spin_unlock_bh(&isert_conn->conn_lock);
                 wr->fr_desc = NULL;
         }
 
-        if (wr->sge) {
+        if (wr->data.sg) {
                 pr_debug("unreg_fastreg_cmd: %p unmap_sg op\n", isert_cmd);
-                ib_dma_unmap_sg(ib_dev, wr->sge, wr->num_sge,
-                                (wr->iser_ib_op == ISER_IB_RDMA_WRITE) ?
-                                DMA_TO_DEVICE : DMA_FROM_DEVICE);
-                wr->sge = NULL;
+                isert_unmap_data_buf(isert_conn, &wr->data);
         }
 
         wr->ib_sge = NULL;
@@ -1451,7 +1581,7 @@ isert_unreg_rdma(struct isert_cmd *isert_cmd, struct isert_conn *isert_conn)
 }
 
 static void
-isert_put_cmd(struct isert_cmd *isert_cmd)
+isert_put_cmd(struct isert_cmd *isert_cmd, bool comp_err)
 {
         struct iscsi_cmd *cmd = isert_cmd->iscsi_cmd;
         struct isert_conn *isert_conn = isert_cmd->conn;
@@ -1467,8 +1597,21 @@ isert_put_cmd(struct isert_cmd *isert_cmd)
                         list_del_init(&cmd->i_conn_node);
                 spin_unlock_bh(&conn->cmd_lock);
 
-                if (cmd->data_direction == DMA_TO_DEVICE)
+                if (cmd->data_direction == DMA_TO_DEVICE) {
                         iscsit_stop_dataout_timer(cmd);
+                        /*
+                         * Check for special case during comp_err where
+                         * WRITE_PENDING has been handed off from core,
+                         * but requires an extra target_put_sess_cmd()
+                         * before transport_generic_free_cmd() below.
+                         */
+                        if (comp_err &&
+                            cmd->se_cmd.t_state == TRANSPORT_WRITE_PENDING) {
+                                struct se_cmd *se_cmd = &cmd->se_cmd;
+
+                                target_put_sess_cmd(se_cmd->se_sess, se_cmd);
+                        }
+                }
 
                 device->unreg_rdma_mem(isert_cmd, isert_conn);
                 transport_generic_free_cmd(&cmd->se_cmd, 0);
@@ -1523,7 +1666,7 @@ isert_unmap_tx_desc(struct iser_tx_desc *tx_desc, struct ib_device *ib_dev)
 
 static void
 isert_completion_put(struct iser_tx_desc *tx_desc, struct isert_cmd *isert_cmd,
-                     struct ib_device *ib_dev)
+                     struct ib_device *ib_dev, bool comp_err)
 {
         if (isert_cmd->pdu_buf_dma != 0) {
                 pr_debug("Calling ib_dma_unmap_single for isert_cmd->pdu_buf_dma\n");
@@ -1533,7 +1676,77 @@ isert_completion_put(struct iser_tx_desc *tx_desc, struct isert_cmd *isert_cmd,
         }
 
         isert_unmap_tx_desc(tx_desc, ib_dev);
-        isert_put_cmd(isert_cmd);
+        isert_put_cmd(isert_cmd, comp_err);
+}
+
+static int
+isert_check_pi_status(struct se_cmd *se_cmd, struct ib_mr *sig_mr)
+{
+        struct ib_mr_status mr_status;
+        int ret;
+
+        ret = ib_check_mr_status(sig_mr, IB_MR_CHECK_SIG_STATUS, &mr_status);
+        if (ret) {
+                pr_err("ib_check_mr_status failed, ret %d\n", ret);
+                goto fail_mr_status;
+        }
+
+        if (mr_status.fail_status & IB_MR_CHECK_SIG_STATUS) {
+                u64 sec_offset_err;
+                u32 block_size = se_cmd->se_dev->dev_attrib.block_size + 8;
+
+                switch (mr_status.sig_err.err_type) {
+                case IB_SIG_BAD_GUARD:
+                        se_cmd->pi_err = TCM_LOGICAL_BLOCK_GUARD_CHECK_FAILED;
+                        break;
+                case IB_SIG_BAD_REFTAG:
+                        se_cmd->pi_err = TCM_LOGICAL_BLOCK_REF_TAG_CHECK_FAILED;
+                        break;
+                case IB_SIG_BAD_APPTAG:
+                        se_cmd->pi_err = TCM_LOGICAL_BLOCK_APP_TAG_CHECK_FAILED;
+                        break;
+                }
+                sec_offset_err = mr_status.sig_err.sig_err_offset;
+                do_div(sec_offset_err, block_size);
+                se_cmd->bad_sector = sec_offset_err + se_cmd->t_task_lba;
+
+                pr_err("isert: PI error found type %d at sector 0x%llx "
+                       "expected 0x%x vs actual 0x%x\n",
+                       mr_status.sig_err.err_type,
+                       (unsigned long long)se_cmd->bad_sector,
+                       mr_status.sig_err.expected,
+                       mr_status.sig_err.actual);
+                ret = 1;
+        }
+
+fail_mr_status:
+        return ret;
+}
+
+static void
+isert_completion_rdma_write(struct iser_tx_desc *tx_desc,
+                            struct isert_cmd *isert_cmd)
+{
+        struct isert_rdma_wr *wr = &isert_cmd->rdma_wr;
+        struct iscsi_cmd *cmd = isert_cmd->iscsi_cmd;
+        struct se_cmd *se_cmd = &cmd->se_cmd;
+        struct isert_conn *isert_conn = isert_cmd->conn;
+        struct isert_device *device = isert_conn->conn_device;
+        int ret = 0;
+
+        if (wr->fr_desc && wr->fr_desc->ind & ISERT_PROTECTED) {
+                ret = isert_check_pi_status(se_cmd,
+                                            wr->fr_desc->pi_ctx->sig_mr);
+                wr->fr_desc->ind &= ~ISERT_PROTECTED;
+        }
+
+        device->unreg_rdma_mem(isert_cmd, isert_conn);
+        wr->send_wr_num = 0;
+        if (ret)
+                transport_send_check_condition_and_sense(se_cmd,
+                                                         se_cmd->pi_err, 0);
+        else
+                isert_put_response(isert_conn->conn, cmd);
 }
 
 static void
@@ -1545,10 +1758,17 @@ isert_completion_rdma_read(struct iser_tx_desc *tx_desc,
         struct se_cmd *se_cmd = &cmd->se_cmd;
         struct isert_conn *isert_conn = isert_cmd->conn;
         struct isert_device *device = isert_conn->conn_device;
+        int ret = 0;
+
+        if (wr->fr_desc && wr->fr_desc->ind & ISERT_PROTECTED) {
+                ret = isert_check_pi_status(se_cmd,
+                                            wr->fr_desc->pi_ctx->sig_mr);
+                wr->fr_desc->ind &= ~ISERT_PROTECTED;
+        }
 
         iscsit_stop_dataout_timer(cmd);
         device->unreg_rdma_mem(isert_cmd, isert_conn);
-        cmd->write_data_done = wr->cur_rdma_length;
+        cmd->write_data_done = wr->data.len;
         wr->send_wr_num = 0;
 
         pr_debug("Cmd: %p RDMA_READ comp calling execute_cmd\n", isert_cmd);
@@ -1557,7 +1777,11 @@ isert_completion_rdma_read(struct iser_tx_desc *tx_desc,
         cmd->i_state = ISTATE_RECEIVED_LAST_DATAOUT;
         spin_unlock_bh(&cmd->istate_lock);
 
-        target_execute_cmd(se_cmd);
+        if (ret)
+                transport_send_check_condition_and_sense(se_cmd,
+                                                         se_cmd->pi_err, 0);
+        else
+                target_execute_cmd(se_cmd);
 }
 
 static void
@@ -1577,14 +1801,14 @@ isert_do_control_comp(struct work_struct *work)
                 iscsit_tmr_post_handler(cmd, cmd->conn);
 
                 cmd->i_state = ISTATE_SENT_STATUS;
-                isert_completion_put(&isert_cmd->tx_desc, isert_cmd, ib_dev);
+                isert_completion_put(&isert_cmd->tx_desc, isert_cmd, ib_dev, false);
                 break;
         case ISTATE_SEND_REJECT:
                 pr_debug("Got isert_do_control_comp ISTATE_SEND_REJECT: >>>\n");
                 atomic_dec(&isert_conn->post_send_buf_count);
 
                 cmd->i_state = ISTATE_SENT_STATUS;
-                isert_completion_put(&isert_cmd->tx_desc, isert_cmd, ib_dev);
+                isert_completion_put(&isert_cmd->tx_desc, isert_cmd, ib_dev, false);
                 break;
         case ISTATE_SEND_LOGOUTRSP:
                 pr_debug("Calling iscsit_logout_post_handler >>>>>>>>>>>>>>\n");
@@ -1598,7 +1822,7 @@ isert_do_control_comp(struct work_struct *work)
         case ISTATE_SEND_TEXTRSP:
                 atomic_dec(&isert_conn->post_send_buf_count);
                 cmd->i_state = ISTATE_SENT_STATUS;
-                isert_completion_put(&isert_cmd->tx_desc, isert_cmd, ib_dev);
+                isert_completion_put(&isert_cmd->tx_desc, isert_cmd, ib_dev, false);
                 break;
         default:
                 pr_err("Unknown do_control_comp i_state %d\n", cmd->i_state);
@@ -1626,10 +1850,21 @@ isert_response_completion(struct iser_tx_desc *tx_desc,
                 queue_work(isert_comp_wq, &isert_cmd->comp_work);
                 return;
         }
-        atomic_sub(wr->send_wr_num + 1, &isert_conn->post_send_buf_count);
+
+        /**
+         * If send_wr_num is 0 this means that we got
+         * RDMA completion and we cleared it and we should
+         * simply decrement the response post. else the
+         * response is incorporated in send_wr_num, just
+         * sub it.
+         **/
+        if (wr->send_wr_num)
+                atomic_sub(wr->send_wr_num, &isert_conn->post_send_buf_count);
+        else
+                atomic_dec(&isert_conn->post_send_buf_count);
 
         cmd->i_state = ISTATE_SENT_STATUS;
-        isert_completion_put(tx_desc, isert_cmd, ib_dev);
+        isert_completion_put(tx_desc, isert_cmd, ib_dev, false);
 }
 
 static void
@@ -1658,8 +1893,9 @@ __isert_send_completion(struct iser_tx_desc *tx_desc,
                                           isert_conn, ib_dev);
                 break;
         case ISER_IB_RDMA_WRITE:
-                pr_err("isert_send_completion: Got ISER_IB_RDMA_WRITE\n");
-                dump_stack();
+                pr_debug("isert_send_completion: Got ISER_IB_RDMA_WRITE\n");
+                atomic_sub(wr->send_wr_num, &isert_conn->post_send_buf_count);
+                isert_completion_rdma_write(tx_desc, isert_cmd);
                 break;
         case ISER_IB_RDMA_READ:
                 pr_debug("isert_send_completion: Got ISER_IB_RDMA_READ:\n");
@@ -1709,8 +1945,20 @@ isert_cq_drain_comp_llist(struct isert_conn *isert_conn, struct ib_device *ib_de
                 llnode = llist_next(llnode);
                 wr = &t->isert_cmd->rdma_wr;
 
-                atomic_sub(wr->send_wr_num + 1, &isert_conn->post_send_buf_count);
-                isert_completion_put(t, t->isert_cmd, ib_dev);
+                /**
+                 * If send_wr_num is 0 this means that we got
+                 * RDMA completion and we cleared it and we should
+                 * simply decrement the response post. else the
+                 * response is incorporated in send_wr_num, just
+                 * sub it.
+                 **/
+                if (wr->send_wr_num)
+                        atomic_sub(wr->send_wr_num,
+                                   &isert_conn->post_send_buf_count);
+                else
+                        atomic_dec(&isert_conn->post_send_buf_count);
+
+                isert_completion_put(t, t->isert_cmd, ib_dev, true);
         }
 }
 
@@ -1728,15 +1976,27 @@ isert_cq_tx_comp_err(struct iser_tx_desc *tx_desc, struct isert_conn *isert_conn
                 llnode = llist_next(llnode);
                 wr = &t->isert_cmd->rdma_wr;
 
-                atomic_sub(wr->send_wr_num + 1, &isert_conn->post_send_buf_count);
-                isert_completion_put(t, t->isert_cmd, ib_dev);
+                /**
+                 * If send_wr_num is 0 this means that we got
+                 * RDMA completion and we cleared it and we should
+                 * simply decrement the response post. else the
+                 * response is incorporated in send_wr_num, just
+                 * sub it.
+                 **/
+                if (wr->send_wr_num)
+                        atomic_sub(wr->send_wr_num,
+                                   &isert_conn->post_send_buf_count);
+                else
+                        atomic_dec(&isert_conn->post_send_buf_count);
+
+                isert_completion_put(t, t->isert_cmd, ib_dev, true);
         }
         tx_desc->comp_llnode_batch = NULL;
 
         if (!isert_cmd)
                 isert_unmap_tx_desc(tx_desc, ib_dev);
         else
-                isert_completion_put(tx_desc, isert_cmd, ib_dev);
+                isert_completion_put(tx_desc, isert_cmd, ib_dev, true);
 }
 
 static void
@@ -1918,6 +2178,36 @@ isert_put_response(struct iscsi_conn *conn, struct iscsi_cmd *cmd)
         return isert_post_response(isert_conn, isert_cmd);
 }
 
+static void
+isert_aborted_task(struct iscsi_conn *conn, struct iscsi_cmd *cmd)
+{
+        struct isert_cmd *isert_cmd = iscsit_priv_cmd(cmd);
+        struct isert_conn *isert_conn = (struct isert_conn *)conn->context;
+        struct isert_device *device = isert_conn->conn_device;
+
+        spin_lock_bh(&conn->cmd_lock);
+        if (!list_empty(&cmd->i_conn_node))
+                list_del_init(&cmd->i_conn_node);
+        spin_unlock_bh(&conn->cmd_lock);
+
+        if (cmd->data_direction == DMA_TO_DEVICE)
+                iscsit_stop_dataout_timer(cmd);
+
+        device->unreg_rdma_mem(isert_cmd, isert_conn);
+}
+
+static enum target_prot_op
+isert_get_sup_prot_ops(struct iscsi_conn *conn)
+{
+        struct isert_conn *isert_conn = (struct isert_conn *)conn->context;
+        struct isert_device *device = isert_conn->conn_device;
+
+        if (device->pi_capable)
+                return TARGET_PROT_ALL;
+
+        return TARGET_PROT_NORMAL;
+}
+
 static int
 isert_put_nopin(struct iscsi_cmd *cmd, struct iscsi_conn *conn,
                 bool nopout_response)
@@ -2099,54 +2389,39 @@ isert_map_rdma(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
         struct se_cmd *se_cmd = &cmd->se_cmd;
         struct isert_cmd *isert_cmd = iscsit_priv_cmd(cmd);
         struct isert_conn *isert_conn = (struct isert_conn *)conn->context;
-        struct ib_device *ib_dev = isert_conn->conn_cm_id->device;
+        struct isert_data_buf *data = &wr->data;
         struct ib_send_wr *send_wr;
         struct ib_sge *ib_sge;
-        struct scatterlist *sg_start;
-        u32 sg_off = 0, sg_nents;
-        u32 offset = 0, data_len, data_left, rdma_write_max, va_offset = 0;
-        int ret = 0, count, i, ib_sge_cnt;
+        u32 offset, data_len, data_left, rdma_write_max, va_offset = 0;
+        int ret = 0, i, ib_sge_cnt;
 
-        if (wr->iser_ib_op == ISER_IB_RDMA_WRITE) {
-                data_left = se_cmd->data_length;
-        } else {
-                sg_off = cmd->write_data_done / PAGE_SIZE;
-                data_left = se_cmd->data_length - cmd->write_data_done;
-                offset = cmd->write_data_done;
-                isert_cmd->tx_desc.isert_cmd = isert_cmd;
-        }
+        isert_cmd->tx_desc.isert_cmd = isert_cmd;
 
-        sg_start = &cmd->se_cmd.t_data_sg[sg_off];
-        sg_nents = se_cmd->t_data_nents - sg_off;
+        offset = wr->iser_ib_op == ISER_IB_RDMA_READ ? cmd->write_data_done : 0;
+        ret = isert_map_data_buf(isert_conn, isert_cmd, se_cmd->t_data_sg,
+                                 se_cmd->t_data_nents, se_cmd->data_length,
+                                 offset, wr->iser_ib_op, &wr->data);
+        if (ret)
+                return ret;
 
-        count = ib_dma_map_sg(ib_dev, sg_start, sg_nents,
-                              (wr->iser_ib_op == ISER_IB_RDMA_WRITE) ?
-                              DMA_TO_DEVICE : DMA_FROM_DEVICE);
-        if (unlikely(!count)) {
-                pr_err("Cmd: %p unrable to map SGs\n", isert_cmd);
-                return -EINVAL;
-        }
-        wr->sge = sg_start;
-        wr->num_sge = sg_nents;
-        wr->cur_rdma_length = data_left;
-        pr_debug("Mapped cmd: %p count: %u sg: %p sg_nents: %u rdma_len %d\n",
-                 isert_cmd, count, sg_start, sg_nents, data_left);
+        data_left = data->len;
+        offset = data->offset;
 
-        ib_sge = kzalloc(sizeof(struct ib_sge) * sg_nents, GFP_KERNEL);
+        ib_sge = kzalloc(sizeof(struct ib_sge) * data->nents, GFP_KERNEL);
         if (!ib_sge) {
                 pr_warn("Unable to allocate ib_sge\n");
                 ret = -ENOMEM;
-                goto unmap_sg;
+                goto unmap_cmd;
         }
         wr->ib_sge = ib_sge;
 
-        wr->send_wr_num = DIV_ROUND_UP(sg_nents, isert_conn->max_sge);
+        wr->send_wr_num = DIV_ROUND_UP(data->nents, isert_conn->max_sge);
         wr->send_wr = kzalloc(sizeof(struct ib_send_wr) * wr->send_wr_num,
                                 GFP_KERNEL);
         if (!wr->send_wr) {
                 pr_debug("Unable to allocate wr->send_wr\n");
                 ret = -ENOMEM;
-                goto unmap_sg;
+                goto unmap_cmd;
         }
 
         wr->isert_cmd = isert_cmd;
@@ -2185,10 +2460,9 @@ isert_map_rdma(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
         }
 
         return 0;
-unmap_sg:
-        ib_dma_unmap_sg(ib_dev, sg_start, sg_nents,
-                        (wr->iser_ib_op == ISER_IB_RDMA_WRITE) ?
-                        DMA_TO_DEVICE : DMA_FROM_DEVICE);
+unmap_cmd:
+        isert_unmap_data_buf(isert_conn, data);
+
         return ret;
 }
 
@@ -2232,49 +2506,70 @@ isert_map_fr_pagelist(struct ib_device *ib_dev,
 }
 
 static int
-isert_fast_reg_mr(struct fast_reg_descriptor *fr_desc,
-                  struct isert_conn *isert_conn, struct scatterlist *sg_start,
-                  struct ib_sge *ib_sge, u32 sg_nents, u32 offset,
-                  unsigned int data_len)
+isert_fast_reg_mr(struct isert_conn *isert_conn,
+                  struct fast_reg_descriptor *fr_desc,
+                  struct isert_data_buf *mem,
+                  enum isert_indicator ind,
+                  struct ib_sge *sge)
 {
         struct ib_device *ib_dev = isert_conn->conn_cm_id->device;
+        struct ib_mr *mr;
+        struct ib_fast_reg_page_list *frpl;
         struct ib_send_wr fr_wr, inv_wr;
         struct ib_send_wr *bad_wr, *wr = NULL;
         int ret, pagelist_len;
         u32 page_off;
         u8 key;
 
-        sg_nents = min_t(unsigned int, sg_nents, ISCSI_ISER_SG_TABLESIZE);
-        page_off = offset % PAGE_SIZE;
+        if (mem->dma_nents == 1) {
+                sge->lkey = isert_conn->conn_mr->lkey;
+                sge->addr = ib_sg_dma_address(ib_dev, &mem->sg[0]);
+                sge->length = ib_sg_dma_len(ib_dev, &mem->sg[0]);
+                pr_debug("%s:%d sge: addr: 0x%llx  length: %u lkey: %x\n",
+                         __func__, __LINE__, sge->addr, sge->length,
+                         sge->lkey);
+                return 0;
+        }
+
+        if (ind == ISERT_DATA_KEY_VALID) {
+                /* Registering data buffer */
+                mr = fr_desc->data_mr;
+                frpl = fr_desc->data_frpl;
+        } else {
+                /* Registering protection buffer */
+                mr = fr_desc->pi_ctx->prot_mr;
+                frpl = fr_desc->pi_ctx->prot_frpl;
+        }
+
+        page_off = mem->offset % PAGE_SIZE;
 
         pr_debug("Use fr_desc %p sg_nents %d offset %u\n",
-                 fr_desc, sg_nents, offset);
+                 fr_desc, mem->nents, mem->offset);
 
-        pagelist_len = isert_map_fr_pagelist(ib_dev, sg_start, sg_nents,
-                                             &fr_desc->data_frpl->page_list[0]);
+        pagelist_len = isert_map_fr_pagelist(ib_dev, mem->sg, mem->nents,
+                                             &frpl->page_list[0]);
 
-        if (!fr_desc->valid) {
+        if (!(fr_desc->ind & ISERT_DATA_KEY_VALID)) {
                 memset(&inv_wr, 0, sizeof(inv_wr));
                 inv_wr.wr_id = ISER_FASTREG_LI_WRID;
                 inv_wr.opcode = IB_WR_LOCAL_INV;
-                inv_wr.ex.invalidate_rkey = fr_desc->data_mr->rkey;
+                inv_wr.ex.invalidate_rkey = mr->rkey;
                 wr = &inv_wr;
                 /* Bump the key */
-                key = (u8)(fr_desc->data_mr->rkey & 0x000000FF);
-                ib_update_fast_reg_key(fr_desc->data_mr, ++key);
+                key = (u8)(mr->rkey & 0x000000FF);
+                ib_update_fast_reg_key(mr, ++key);
         }
 
         /* Prepare FASTREG WR */
         memset(&fr_wr, 0, sizeof(fr_wr));
         fr_wr.wr_id = ISER_FASTREG_LI_WRID;
         fr_wr.opcode = IB_WR_FAST_REG_MR;
-        fr_wr.wr.fast_reg.iova_start =
-                fr_desc->data_frpl->page_list[0] + page_off;
-        fr_wr.wr.fast_reg.page_list = fr_desc->data_frpl;
+        fr_wr.wr.fast_reg.iova_start = frpl->page_list[0] + page_off;
+        fr_wr.wr.fast_reg.page_list = frpl;
         fr_wr.wr.fast_reg.page_list_len = pagelist_len;
         fr_wr.wr.fast_reg.page_shift = PAGE_SHIFT;
-        fr_wr.wr.fast_reg.length = data_len;
-        fr_wr.wr.fast_reg.rkey = fr_desc->data_mr->rkey;
+        fr_wr.wr.fast_reg.length = mem->len;
+        fr_wr.wr.fast_reg.rkey = mr->rkey;
         fr_wr.wr.fast_reg.access_flags = IB_ACCESS_LOCAL_WRITE;
 
         if (!wr)
@@ -2287,15 +2582,157 @@ isert_fast_reg_mr(struct fast_reg_descriptor *fr_desc,
                 pr_err("fast registration failed, ret:%d\n", ret);
                 return ret;
         }
-        fr_desc->valid = false;
+        fr_desc->ind &= ~ind;
+
+        sge->lkey = mr->lkey;
+        sge->addr = frpl->page_list[0] + page_off;
+        sge->length = mem->len;
+
+        pr_debug("%s:%d sge: addr: 0x%llx  length: %u lkey: %x\n",
+                 __func__, __LINE__, sge->addr, sge->length,
+                 sge->lkey);
+
+        return ret;
+}
+
+static inline enum ib_t10_dif_type
+se2ib_prot_type(enum target_prot_type prot_type)
+{
+        switch (prot_type) {
+        case TARGET_DIF_TYPE0_PROT:
+                return IB_T10DIF_NONE;
+        case TARGET_DIF_TYPE1_PROT:
+                return IB_T10DIF_TYPE1;
+        case TARGET_DIF_TYPE2_PROT:
+                return IB_T10DIF_TYPE2;
+        case TARGET_DIF_TYPE3_PROT:
+                return IB_T10DIF_TYPE3;
+        default:
+                return IB_T10DIF_NONE;
+        }
+}
 
-        ib_sge->lkey = fr_desc->data_mr->lkey;
-        ib_sge->addr = fr_desc->data_frpl->page_list[0] + page_off;
-        ib_sge->length = data_len;
+static int
+isert_set_sig_attrs(struct se_cmd *se_cmd, struct ib_sig_attrs *sig_attrs)
+{
+        enum ib_t10_dif_type ib_prot_type = se2ib_prot_type(se_cmd->prot_type);
+
+        sig_attrs->mem.sig_type = IB_SIG_TYPE_T10_DIF;
+        sig_attrs->wire.sig_type = IB_SIG_TYPE_T10_DIF;
+        sig_attrs->mem.sig.dif.pi_interval =
+                                se_cmd->se_dev->dev_attrib.block_size;
+        sig_attrs->wire.sig.dif.pi_interval =
+                                se_cmd->se_dev->dev_attrib.block_size;
+
+        switch (se_cmd->prot_op) {
+        case TARGET_PROT_DIN_INSERT:
+        case TARGET_PROT_DOUT_STRIP:
+                sig_attrs->mem.sig.dif.type = IB_T10DIF_NONE;
+                sig_attrs->wire.sig.dif.type = ib_prot_type;
+                sig_attrs->wire.sig.dif.bg_type = IB_T10DIF_CRC;
+                sig_attrs->wire.sig.dif.ref_tag = se_cmd->reftag_seed;
+                break;
+        case TARGET_PROT_DOUT_INSERT:
+        case TARGET_PROT_DIN_STRIP:
+                sig_attrs->mem.sig.dif.type = ib_prot_type;
+                sig_attrs->mem.sig.dif.bg_type = IB_T10DIF_CRC;
+                sig_attrs->mem.sig.dif.ref_tag = se_cmd->reftag_seed;
+                sig_attrs->wire.sig.dif.type = IB_T10DIF_NONE;
+                break;
+        case TARGET_PROT_DIN_PASS:
+        case TARGET_PROT_DOUT_PASS:
+                sig_attrs->mem.sig.dif.type = ib_prot_type;
+                sig_attrs->mem.sig.dif.bg_type = IB_T10DIF_CRC;
+                sig_attrs->mem.sig.dif.ref_tag = se_cmd->reftag_seed;
+                sig_attrs->wire.sig.dif.type = ib_prot_type;
+                sig_attrs->wire.sig.dif.bg_type = IB_T10DIF_CRC;
+                sig_attrs->wire.sig.dif.ref_tag = se_cmd->reftag_seed;
+                break;
+        default:
+                pr_err("Unsupported PI operation %d\n", se_cmd->prot_op);
+                return -EINVAL;
+        }
 
-        pr_debug("RDMA ib_sge: addr: 0x%16llx  length: %u lkey: %08x\n",
-                 ib_sge->addr, ib_sge->length, ib_sge->lkey);
+        return 0;
+}
+
+static inline u8
+isert_set_prot_checks(u8 prot_checks)
+{
+        return (prot_checks & TARGET_DIF_CHECK_GUARD  ? 0xc0 : 0) |
+               (prot_checks & TARGET_DIF_CHECK_REFTAG ? 0x30 : 0) |
+               (prot_checks & TARGET_DIF_CHECK_REFTAG ? 0x0f : 0);
+}
+
+static int
+isert_reg_sig_mr(struct isert_conn *isert_conn, struct se_cmd *se_cmd,
+                 struct fast_reg_descriptor *fr_desc,
+                 struct ib_sge *data_sge, struct ib_sge *prot_sge,
+                 struct ib_sge *sig_sge)
+{
+        struct ib_send_wr sig_wr, inv_wr;
+        struct ib_send_wr *bad_wr, *wr = NULL;
+        struct pi_context *pi_ctx = fr_desc->pi_ctx;
+        struct ib_sig_attrs sig_attrs;
+        int ret;
+        u32 key;
+
+        memset(&sig_attrs, 0, sizeof(sig_attrs));
+        ret = isert_set_sig_attrs(se_cmd, &sig_attrs);
+        if (ret)
+                goto err;
+
+        sig_attrs.check_mask = isert_set_prot_checks(se_cmd->prot_checks);
+
+        if (!(fr_desc->ind & ISERT_SIG_KEY_VALID)) {
+                memset(&inv_wr, 0, sizeof(inv_wr));
+                inv_wr.opcode = IB_WR_LOCAL_INV;
+                inv_wr.wr_id = ISER_FASTREG_LI_WRID;
+                inv_wr.ex.invalidate_rkey = pi_ctx->sig_mr->rkey;
+                wr = &inv_wr;
+                /* Bump the key */
+                key = (u8)(pi_ctx->sig_mr->rkey & 0x000000FF);
+                ib_update_fast_reg_key(pi_ctx->sig_mr, ++key);
+        }
+
+        memset(&sig_wr, 0, sizeof(sig_wr));
+        sig_wr.opcode = IB_WR_REG_SIG_MR;
+        sig_wr.wr_id = ISER_FASTREG_LI_WRID;
+        sig_wr.sg_list = data_sge;
+        sig_wr.num_sge = 1;
+        sig_wr.wr.sig_handover.access_flags = IB_ACCESS_LOCAL_WRITE;
+        sig_wr.wr.sig_handover.sig_attrs = &sig_attrs;
+        sig_wr.wr.sig_handover.sig_mr = pi_ctx->sig_mr;
+        if (se_cmd->t_prot_sg)
+                sig_wr.wr.sig_handover.prot = prot_sge;
+
+        if (!wr)
+                wr = &sig_wr;
+        else
+                wr->next = &sig_wr;
+
+        ret = ib_post_send(isert_conn->conn_qp, wr, &bad_wr);
+        if (ret) {
+                pr_err("fast registration failed, ret:%d\n", ret);
+                goto err;
+        }
+        fr_desc->ind &= ~ISERT_SIG_KEY_VALID;
+
+        sig_sge->lkey = pi_ctx->sig_mr->lkey;
+        sig_sge->addr = 0;
+        sig_sge->length = se_cmd->data_length;
+        if (se_cmd->prot_op != TARGET_PROT_DIN_STRIP &&
+            se_cmd->prot_op != TARGET_PROT_DOUT_INSERT)
+                /*
+                 * We have protection guards on the wire
+                 * so we need to set a larget transfer
+                 */
+                sig_sge->length += se_cmd->prot_length;
 
+        pr_debug("sig_sge: addr: 0x%llx  length: %u lkey: %x\n",
+                 sig_sge->addr, sig_sge->length,
+                 sig_sge->lkey);
+err:
         return ret;
 }
 
@@ -2305,62 +2742,82 @@ isert_reg_rdma(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
 {
         struct se_cmd *se_cmd = &cmd->se_cmd;
         struct isert_cmd *isert_cmd = iscsit_priv_cmd(cmd);
-        struct isert_conn *isert_conn = (struct isert_conn *)conn->context;
-        struct ib_device *ib_dev = isert_conn->conn_cm_id->device;
+        struct isert_conn *isert_conn = conn->context;
+        struct ib_sge data_sge;
         struct ib_send_wr *send_wr;
-        struct ib_sge *ib_sge;
-        struct scatterlist *sg_start;
-        struct fast_reg_descriptor *fr_desc;
-        u32 sg_off = 0, sg_nents;
-        u32 offset = 0, data_len, data_left, rdma_write_max;
-        int ret = 0, count;
+        struct fast_reg_descriptor *fr_desc = NULL;
+        u32 offset;
+        int ret = 0;
         unsigned long flags;
 
-        if (wr->iser_ib_op == ISER_IB_RDMA_WRITE) {
-                data_left = se_cmd->data_length;
-        } else {
-                offset = cmd->write_data_done;
-                sg_off = offset / PAGE_SIZE;
-                data_left = se_cmd->data_length - cmd->write_data_done;
-                isert_cmd->tx_desc.isert_cmd = isert_cmd;
-        }
+        isert_cmd->tx_desc.isert_cmd = isert_cmd;
 
-        sg_start = &cmd->se_cmd.t_data_sg[sg_off];
-        sg_nents = se_cmd->t_data_nents - sg_off;
+        offset = wr->iser_ib_op == ISER_IB_RDMA_READ ? cmd->write_data_done : 0;
+        ret = isert_map_data_buf(isert_conn, isert_cmd, se_cmd->t_data_sg,
+                                 se_cmd->t_data_nents, se_cmd->data_length,
+                                 offset, wr->iser_ib_op, &wr->data);
+        if (ret)
+                return ret;
 
-        count = ib_dma_map_sg(ib_dev, sg_start, sg_nents,
-                              (wr->iser_ib_op == ISER_IB_RDMA_WRITE) ?
-                              DMA_TO_DEVICE : DMA_FROM_DEVICE);
-        if (unlikely(!count)) {
-                pr_err("Cmd: %p unrable to map SGs\n", isert_cmd);
-                return -EINVAL;
+        if (wr->data.dma_nents != 1 ||
+            se_cmd->prot_op != TARGET_PROT_NORMAL) {
+                spin_lock_irqsave(&isert_conn->conn_lock, flags);
+                fr_desc = list_first_entry(&isert_conn->conn_fr_pool,
+                                           struct fast_reg_descriptor, list);
+                list_del(&fr_desc->list);
+                spin_unlock_irqrestore(&isert_conn->conn_lock, flags);
+                wr->fr_desc = fr_desc;
         }
-        wr->sge = sg_start;
-        wr->num_sge = sg_nents;
-        pr_debug("Mapped cmd: %p count: %u sg: %p sg_nents: %u rdma_len %d\n",
-                 isert_cmd, count, sg_start, sg_nents, data_left);
 
-        memset(&wr->s_ib_sge, 0, sizeof(*ib_sge));
-        ib_sge = &wr->s_ib_sge;
-        wr->ib_sge = ib_sge;
+        ret = isert_fast_reg_mr(isert_conn, fr_desc, &wr->data,
+                                ISERT_DATA_KEY_VALID, &data_sge);
+        if (ret)
+                goto unmap_cmd;
+
+        if (se_cmd->prot_op != TARGET_PROT_NORMAL) {
+                struct ib_sge prot_sge, sig_sge;
+
+                if (se_cmd->t_prot_sg) {
+                        ret = isert_map_data_buf(isert_conn, isert_cmd,
+                                                 se_cmd->t_prot_sg,
+                                                 se_cmd->t_prot_nents,
+                                                 se_cmd->prot_length,
+                                                 0, wr->iser_ib_op, &wr->prot);
+                        if (ret)
+                                goto unmap_cmd;
+
+                        ret = isert_fast_reg_mr(isert_conn, fr_desc, &wr->prot,
+                                                ISERT_PROT_KEY_VALID, &prot_sge);
+                        if (ret)
+                                goto unmap_prot_cmd;
+                }
+
+                ret = isert_reg_sig_mr(isert_conn, se_cmd, fr_desc,
+                                       &data_sge, &prot_sge, &sig_sge);
+                if (ret)
+                        goto unmap_prot_cmd;
 
+                fr_desc->ind |= ISERT_PROTECTED;
+                memcpy(&wr->s_ib_sge, &sig_sge, sizeof(sig_sge));
+        } else
+                memcpy(&wr->s_ib_sge, &data_sge, sizeof(data_sge));
+
+        wr->ib_sge = &wr->s_ib_sge;
         wr->send_wr_num = 1;
         memset(&wr->s_send_wr, 0, sizeof(*send_wr));
         wr->send_wr = &wr->s_send_wr;
-
         wr->isert_cmd = isert_cmd;
-        rdma_write_max = ISCSI_ISER_SG_TABLESIZE * PAGE_SIZE;
 
         send_wr = &isert_cmd->rdma_wr.s_send_wr;
-        send_wr->sg_list = ib_sge;
+        send_wr->sg_list = &wr->s_ib_sge;
         send_wr->num_sge = 1;
         send_wr->wr_id = (unsigned long)&isert_cmd->tx_desc;
         if (wr->iser_ib_op == ISER_IB_RDMA_WRITE) {
                 send_wr->opcode = IB_WR_RDMA_WRITE;
                 send_wr->wr.rdma.remote_addr = isert_cmd->read_va;
                 send_wr->wr.rdma.rkey = isert_cmd->read_stag;
-                send_wr->send_flags = 0;
-                send_wr->next = &isert_cmd->tx_desc.send_wr;
+                send_wr->send_flags = se_cmd->prot_op == TARGET_PROT_NORMAL ?
+                                      0 : IB_SEND_SIGNALED;
         } else {
                 send_wr->opcode = IB_WR_RDMA_READ;
                 send_wr->wr.rdma.remote_addr = isert_cmd->write_va;
@@ -2368,37 +2825,18 @@ isert_reg_rdma(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
                 send_wr->send_flags = IB_SEND_SIGNALED;
         }
 
-        data_len = min(data_left, rdma_write_max);
-        wr->cur_rdma_length = data_len;
-
-        /* if there is a single dma entry, dma mr is sufficient */
-        if (count == 1) {
-                ib_sge->addr = ib_sg_dma_address(ib_dev, &sg_start[0]);
-                ib_sge->length = ib_sg_dma_len(ib_dev, &sg_start[0]);
-                ib_sge->lkey = isert_conn->conn_mr->lkey;
-                wr->fr_desc = NULL;
-        } else {
+        return 0;
+unmap_prot_cmd:
+        if (se_cmd->t_prot_sg)
+                isert_unmap_data_buf(isert_conn, &wr->prot);
+unmap_cmd:
+        if (fr_desc) {
                 spin_lock_irqsave(&isert_conn->conn_lock, flags);
-                fr_desc = list_first_entry(&isert_conn->conn_fr_pool,
-                                           struct fast_reg_descriptor, list);
-                list_del(&fr_desc->list);
+                list_add_tail(&fr_desc->list, &isert_conn->conn_fr_pool);
                 spin_unlock_irqrestore(&isert_conn->conn_lock, flags);
-                wr->fr_desc = fr_desc;
-
-                ret = isert_fast_reg_mr(fr_desc, isert_conn, sg_start,
-                                        ib_sge, sg_nents, offset, data_len);
-                if (ret) {
-                        list_add_tail(&fr_desc->list, &isert_conn->conn_fr_pool);
-                        goto unmap_sg;
-                }
         }
+        isert_unmap_data_buf(isert_conn, &wr->data);
 
-        return 0;
-
-unmap_sg:
-        ib_dma_unmap_sg(ib_dev, sg_start, sg_nents,
-                        (wr->iser_ib_op == ISER_IB_RDMA_WRITE) ?
-                        DMA_TO_DEVICE : DMA_FROM_DEVICE);
         return ret;
 }
 
@@ -2422,25 +2860,35 @@ isert_put_datain(struct iscsi_conn *conn, struct iscsi_cmd *cmd)
                 return rc;
         }
 
-        /*
-         * Build isert_conn->tx_desc for iSCSI response PDU and attach
-         */
-        isert_create_send_desc(isert_conn, isert_cmd, &isert_cmd->tx_desc);
-        iscsit_build_rsp_pdu(cmd, conn, true, (struct iscsi_scsi_rsp *)
-                             &isert_cmd->tx_desc.iscsi_header);
-        isert_init_tx_hdrs(isert_conn, &isert_cmd->tx_desc);
-        isert_init_send_wr(isert_conn, isert_cmd,
-                           &isert_cmd->tx_desc.send_wr, true);
+        if (se_cmd->prot_op == TARGET_PROT_NORMAL) {
+                /*
+                 * Build isert_conn->tx_desc for iSCSI response PDU and attach
+                 */
+                isert_create_send_desc(isert_conn, isert_cmd,
+                                       &isert_cmd->tx_desc);
+                iscsit_build_rsp_pdu(cmd, conn, true, (struct iscsi_scsi_rsp *)
+                                     &isert_cmd->tx_desc.iscsi_header);
+                isert_init_tx_hdrs(isert_conn, &isert_cmd->tx_desc);
+                isert_init_send_wr(isert_conn, isert_cmd,
+                                   &isert_cmd->tx_desc.send_wr, true);
+                isert_cmd->rdma_wr.s_send_wr.next = &isert_cmd->tx_desc.send_wr;
+                wr->send_wr_num += 1;
+        }
 
-        atomic_add(wr->send_wr_num + 1, &isert_conn->post_send_buf_count);
+        atomic_add(wr->send_wr_num, &isert_conn->post_send_buf_count);
 
         rc = ib_post_send(isert_conn->conn_qp, wr->send_wr, &wr_failed);
         if (rc) {
                 pr_warn("ib_post_send() failed for IB_WR_RDMA_WRITE\n");
-                atomic_sub(wr->send_wr_num + 1, &isert_conn->post_send_buf_count);
+                atomic_sub(wr->send_wr_num, &isert_conn->post_send_buf_count);
         }
-        pr_debug("Cmd: %p posted RDMA_WRITE + Response for iSER Data READ\n",
-                 isert_cmd);
+
+        if (se_cmd->prot_op == TARGET_PROT_NORMAL)
+                pr_debug("Cmd: %p posted RDMA_WRITE + Response for iSER Data "
+                         "READ\n", isert_cmd);
+        else
+                pr_debug("Cmd: %p posted RDMA_WRITE for iSER Data READ\n",
+                         isert_cmd);
 
         return 1;
 }
@@ -2815,6 +3263,8 @@ static struct iscsit_transport iser_target_transport = {
         .iscsit_get_dataout     = isert_get_dataout,
         .iscsit_queue_data_in   = isert_put_datain,
         .iscsit_queue_status    = isert_put_response,
+        .iscsit_aborted_task    = isert_aborted_task,
+        .iscsit_get_sup_prot_ops = isert_get_sup_prot_ops,
 };
 
 static int __init isert_init(void)
diff --git a/drivers/infiniband/ulp/isert/ib_isert.h b/drivers/infiniband/ulp/isert/ib_isert.h
index f6ae7f5dd408..4c072ae34c01 100644
--- a/drivers/infiniband/ulp/isert/ib_isert.h
+++ b/drivers/infiniband/ulp/isert/ib_isert.h
@@ -50,11 +50,35 @@ struct iser_tx_desc {
         struct ib_send_wr send_wr;
 } __packed;
 
+enum isert_indicator {
+        ISERT_PROTECTED         = 1 << 0,
+        ISERT_DATA_KEY_VALID    = 1 << 1,
+        ISERT_PROT_KEY_VALID    = 1 << 2,
+        ISERT_SIG_KEY_VALID     = 1 << 3,
+};
+
+struct pi_context {
+        struct ib_mr                   *prot_mr;
+        struct ib_fast_reg_page_list   *prot_frpl;
+        struct ib_mr                   *sig_mr;
+};
+
 struct fast_reg_descriptor {
-        struct list_head        list;
-        struct ib_mr            *data_mr;
-        struct ib_fast_reg_page_list    *data_frpl;
-        bool                    valid;
+        struct list_head                list;
+        struct ib_mr                   *data_mr;
+        struct ib_fast_reg_page_list   *data_frpl;
+        u8                              ind;
+        struct pi_context              *pi_ctx;
+};
+
+struct isert_data_buf {
+        struct scatterlist     *sg;
+        int                     nents;
+        u32                     sg_off;
+        u32                     len; /* cur_rdma_length */
+        u32                     offset;
+        unsigned int            dma_nents;
+        enum dma_data_direction dma_dir;
 };
 
 struct isert_rdma_wr {
@@ -63,12 +87,11 @@ struct isert_rdma_wr {
         enum iser_ib_op_code    iser_ib_op;
         struct ib_sge           *ib_sge;
         struct ib_sge           s_ib_sge;
-        int                     num_sge;
-        struct scatterlist      *sge;
         int                     send_wr_num;
         struct ib_send_wr       *send_wr;
         struct ib_send_wr       s_send_wr;
-        u32                     cur_rdma_length;
+        struct isert_data_buf   data;
+        struct isert_data_buf   prot;
         struct fast_reg_descriptor *fr_desc;
 };
 
@@ -141,6 +164,7 @@ struct isert_cq_desc {
 
 struct isert_device {
         int                     use_fastreg;
+        bool                    pi_capable;
         int                     cqs_used;
         int                     refcount;
         int                     cq_active_qps[ISERT_MAX_CQ];
diff --git a/drivers/infiniband/ulp/srpt/ib_srpt.c b/drivers/infiniband/ulp/srpt/ib_srpt.c
index 0e537d8d0e47..fe09f2788b15 100644
--- a/drivers/infiniband/ulp/srpt/ib_srpt.c
+++ b/drivers/infiniband/ulp/srpt/ib_srpt.c
@@ -1078,6 +1078,7 @@ static void srpt_unmap_sg_to_ib_sge(struct srpt_rdma_ch *ch,
 static int srpt_map_sg_to_ib_sge(struct srpt_rdma_ch *ch,
                                  struct srpt_send_ioctx *ioctx)
 {
+        struct ib_device *dev = ch->sport->sdev->device;
         struct se_cmd *cmd;
         struct scatterlist *sg, *sg_orig;
         int sg_cnt;
@@ -1124,7 +1125,7 @@ static int srpt_map_sg_to_ib_sge(struct srpt_rdma_ch *ch,
 
         db = ioctx->rbufs;
         tsize = cmd->data_length;
-        dma_len = sg_dma_len(&sg[0]);
+        dma_len = ib_sg_dma_len(dev, &sg[0]);
         riu = ioctx->rdma_ius;
 
         /*
@@ -1155,7 +1156,8 @@ static int srpt_map_sg_to_ib_sge(struct srpt_rdma_ch *ch,
                                         ++j;
                                         if (j < count) {
                                                 sg = sg_next(sg);
-                                                dma_len = sg_dma_len(sg);
+                                                dma_len = ib_sg_dma_len(
+                                                                dev, sg);
                                         }
                                 }
                         } else {
@@ -1192,8 +1194,8 @@ static int srpt_map_sg_to_ib_sge(struct srpt_rdma_ch *ch,
         tsize = cmd->data_length;
         riu = ioctx->rdma_ius;
         sg = sg_orig;
-        dma_len = sg_dma_len(&sg[0]);
-        dma_addr = sg_dma_address(&sg[0]);
+        dma_len = ib_sg_dma_len(dev, &sg[0]);
+        dma_addr = ib_sg_dma_address(dev, &sg[0]);
 
         /* this second loop is really mapped sg_addres to rdma_iu->ib_sge */
         for (i = 0, j = 0;
@@ -1216,8 +1218,10 @@ static int srpt_map_sg_to_ib_sge(struct srpt_rdma_ch *ch,
                                         ++j;
                                         if (j < count) {
                                                 sg = sg_next(sg);
-                                                dma_len = sg_dma_len(sg);
-                                                dma_addr = sg_dma_address(sg);
+                                                dma_len = ib_sg_dma_len(
+                                                                dev, sg);
+                                                dma_addr = ib_sg_dma_address(
+                                                                dev, sg);
                                         }
                                 }
                         } else {
@@ -2580,7 +2584,7 @@ static int srpt_cm_req_recv(struct ib_cm_id *cm_id,
                 goto destroy_ib;
         }
 
-        ch->sess = transport_init_session();
+        ch->sess = transport_init_session(TARGET_PROT_NORMAL);
         if (IS_ERR(ch->sess)) {
                 rej->reason = __constant_cpu_to_be32(
                                 SRP_LOGIN_REJ_INSUFFICIENT_RESOURCES);
@@ -3081,6 +3085,14 @@ static void srpt_queue_tm_rsp(struct se_cmd *cmd)
         srpt_queue_response(cmd);
 }
 
+static void srpt_aborted_task(struct se_cmd *cmd)
+{
+        struct srpt_send_ioctx *ioctx = container_of(cmd,
+                                struct srpt_send_ioctx, cmd);
+
+        srpt_unmap_sg_to_ib_sge(ioctx->ch, ioctx);
+}
+
 static int srpt_queue_status(struct se_cmd *cmd)
 {
         struct srpt_send_ioctx *ioctx;
@@ -3928,6 +3940,7 @@ static struct target_core_fabric_ops srpt_template = {
         .queue_data_in                  = srpt_queue_data_in,
         .queue_status                   = srpt_queue_status,
         .queue_tm_rsp                   = srpt_queue_tm_rsp,
+        .aborted_task                   = srpt_aborted_task,
         /*
          * Setup function pointers for generic logic in
          * target_core_fabric_configfs.c
diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c
index 4195a01b1535..9a8e66ae04f5 100644
--- a/drivers/md/bitmap.c
+++ b/drivers/md/bitmap.c
@@ -1988,7 +1988,6 @@ location_store(struct mddev *mddev, const char *buf, size_t len)
                 if (mddev->bitmap_info.file) {
                         struct file *f = mddev->bitmap_info.file;
                         mddev->bitmap_info.file = NULL;
-                        restore_bitmap_write_access(f);
                         fput(f);
                 }
         } else {
diff --git a/drivers/md/md.c b/drivers/md/md.c
index 4ad5cc4e63e8..8fda38d23e38 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -5181,32 +5181,6 @@ static int restart_array(struct mddev *mddev)
         return 0;
 }
 
-/* similar to deny_write_access, but accounts for our holding a reference
- * to the file ourselves */
-static int deny_bitmap_write_access(struct file * file)
-{
-        struct inode *inode = file->f_mapping->host;
-
-        spin_lock(&inode->i_lock);
-        if (atomic_read(&inode->i_writecount) > 1) {
-                spin_unlock(&inode->i_lock);
-                return -ETXTBSY;
-        }
-        atomic_set(&inode->i_writecount, -1);
-        spin_unlock(&inode->i_lock);
-
-        return 0;
-}
-
-void restore_bitmap_write_access(struct file *file)
-{
-        struct inode *inode = file->f_mapping->host;
-
-        spin_lock(&inode->i_lock);
-        atomic_set(&inode->i_writecount, 1);
-        spin_unlock(&inode->i_lock);
-}
-
 static void md_clean(struct mddev *mddev)
 {
         mddev->array_sectors = 0;
@@ -5427,7 +5401,6 @@ static int do_md_stop(struct mddev * mddev, int mode,
 
                 bitmap_destroy(mddev);
                 if (mddev->bitmap_info.file) {
-                        restore_bitmap_write_access(mddev->bitmap_info.file);
                         fput(mddev->bitmap_info.file);
                         mddev->bitmap_info.file = NULL;
                 }
@@ -5979,7 +5952,7 @@ abort_export:
 
 static int set_bitmap_file(struct mddev *mddev, int fd)
 {
-        int err;
+        int err = 0;
 
         if (mddev->pers) {
                 if (!mddev->pers->quiesce)
@@ -5991,6 +5964,7 @@ static int set_bitmap_file(struct mddev *mddev, int fd)
 
 
         if (fd >= 0) {
+                struct inode *inode;
                 if (mddev->bitmap)
                         return -EEXIST; /* cannot add when bitmap is present */
                 mddev->bitmap_info.file = fget(fd);
@@ -6001,10 +5975,21 @@ static int set_bitmap_file(struct mddev *mddev, int fd)
                         return -EBADF;
                 }
 
-                err = deny_bitmap_write_access(mddev->bitmap_info.file);
-                if (err) {
+                inode = mddev->bitmap_info.file->f_mapping->host;
+                if (!S_ISREG(inode->i_mode)) {
+                        printk(KERN_ERR "%s: error: bitmap file must be a regular file\n",
+                               mdname(mddev));
+                        err = -EBADF;
+                } else if (!(mddev->bitmap_info.file->f_mode & FMODE_WRITE)) {
+                        printk(KERN_ERR "%s: error: bitmap file must open for write\n",
+                               mdname(mddev));
+                        err = -EBADF;
+                } else if (atomic_read(&inode->i_writecount) != 1) {
                         printk(KERN_ERR "%s: error: bitmap file is already in use\n",
                                mdname(mddev));
+                        err = -EBUSY;
+                }
+                if (err) {
                         fput(mddev->bitmap_info.file);
                         mddev->bitmap_info.file = NULL;
                         return err;
@@ -6027,10 +6012,8 @@ static int set_bitmap_file(struct mddev *mddev, int fd)
                 mddev->pers->quiesce(mddev, 0);
         }
         if (fd < 0) {
-                if (mddev->bitmap_info.file) {
-                        restore_bitmap_write_access(mddev->bitmap_info.file);
+                if (mddev->bitmap_info.file)
                         fput(mddev->bitmap_info.file);
-                }
                 mddev->bitmap_info.file = NULL;
         }
 
@@ -7182,11 +7165,14 @@ static int md_seq_open(struct inode *inode, struct file *file)
         return error;
 }
 
+static int md_unloading;
 static unsigned int mdstat_poll(struct file *filp, poll_table *wait)
 {
         struct seq_file *seq = filp->private_data;
         int mask;
 
+        if (md_unloading)
+                return POLLIN|POLLRDNORM|POLLERR|POLLPRI;;
         poll_wait(filp, &md_event_waiters, wait);
 
         /* always allow read */
@@ -8672,6 +8658,7 @@ static __exit void md_exit(void)
 {
         struct mddev *mddev;
         struct list_head *tmp;
+        int delay = 1;
 
         blk_unregister_region(MKDEV(MD_MAJOR,0), 1U << MINORBITS);
         blk_unregister_region(MKDEV(mdp_major,0), 1U << MINORBITS);
@@ -8680,7 +8667,19 @@ static __exit void md_exit(void)
         unregister_blkdev(mdp_major, "mdp");
         unregister_reboot_notifier(&md_notifier);
         unregister_sysctl_table(raid_table_header);
+
+        /* We cannot unload the modules while some process is
+         * waiting for us in select() or poll() - wake them up
+         */
+        md_unloading = 1;
+        while (waitqueue_active(&md_event_waiters)) {
+                /* not safe to leave yet */
+                wake_up(&md_event_waiters);
+                msleep(delay);
+                delay += delay;
+        }
         remove_proc_entry("mdstat", NULL);
+
         for_each_mddev(mddev, tmp) {
                 export_array(mddev);
                 mddev->hold_active = 0;
diff --git a/drivers/md/md.h b/drivers/md/md.h
index 07bba96de260..a49d991f3fe1 100644
--- a/drivers/md/md.h
+++ b/drivers/md/md.h
@@ -605,7 +605,6 @@ extern int md_check_no_bitmap(struct mddev *mddev);
 extern int md_integrity_register(struct mddev *mddev);
 extern void md_integrity_add_rdev(struct md_rdev *rdev, struct mddev *mddev);
 extern int strict_strtoul_scaled(const char *cp, unsigned long *res, int scale);
-extern void restore_bitmap_write_access(struct file *file);
 
 extern void mddev_init(struct mddev *mddev);
 extern int md_run(struct mddev *mddev);
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index 4a6ca1cb2e78..56e24c072b62 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -97,6 +97,7 @@ static void * r1buf_pool_alloc(gfp_t gfp_flags, void *data)
         struct pool_info *pi = data;
         struct r1bio *r1_bio;
         struct bio *bio;
+        int need_pages;
         int i, j;
 
         r1_bio = r1bio_pool_alloc(gfp_flags, pi);
@@ -119,15 +120,15 @@ static void * r1buf_pool_alloc(gfp_t gfp_flags, void *data)
          * RESYNC_PAGES for each bio.
          */
         if (test_bit(MD_RECOVERY_REQUESTED, &pi->mddev->recovery))
-                j = pi->raid_disks;
+                need_pages = pi->raid_disks;
         else
-                j = 1;
-        while(j--) {
+                need_pages = 1;
+        for (j = 0; j < need_pages; j++) {
                 bio = r1_bio->bios[j];
                 bio->bi_vcnt = RESYNC_PAGES;
 
                 if (bio_alloc_pages(bio, gfp_flags))
-                        goto out_free_bio;
+                        goto out_free_pages;
         }
         /* If not user-requests, copy the page pointers to all bios */
         if (!test_bit(MD_RECOVERY_REQUESTED, &pi->mddev->recovery)) {
@@ -141,6 +142,14 @@ static void * r1buf_pool_alloc(gfp_t gfp_flags, void *data)
 
         return r1_bio;
 
+out_free_pages:
+        while (--j >= 0) {
+                struct bio_vec *bv;
+
+                bio_for_each_segment_all(bv, r1_bio->bios[j], i)
+                        __free_page(bv->bv_page);
+        }
+
 out_free_bio:
         while (++j < pi->raid_disks)
                 bio_put(r1_bio->bios[j]);
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 16f5c21963db..25247a852912 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -679,14 +679,9 @@ get_active_stripe(struct r5conf *conf, sector_t sector,
                                 init_stripe(sh, sector, previous);
                                 atomic_inc(&sh->count);
                         }
-                } else {
+                } else if (!atomic_inc_not_zero(&sh->count)) {
                         spin_lock(&conf->device_lock);
-                        if (atomic_read(&sh->count)) {
-                                BUG_ON(!list_empty(&sh->lru)
-                                    && !test_bit(STRIPE_EXPANDING, &sh->state)
-                                    && !test_bit(STRIPE_ON_UNPLUG_LIST, &sh->state)
-                                        );
-                        } else {
+                        if (!atomic_read(&sh->count)) {
                                 if (!test_bit(STRIPE_HANDLE, &sh->state))
                                         atomic_inc(&conf->active_stripes);
                                 BUG_ON(list_empty(&sh->lru) &&
@@ -4552,6 +4547,8 @@ static void make_request(struct mddev *mddev, struct bio * bi)
         struct stripe_head *sh;
         const int rw = bio_data_dir(bi);
         int remaining;
+        DEFINE_WAIT(w);
+        bool do_prepare;
 
         if (unlikely(bi->bi_rw & REQ_FLUSH)) {
                 md_flush_request(mddev, bi);
@@ -4575,15 +4572,18 @@ static void make_request(struct mddev *mddev, struct bio * bi)
         bi->bi_next = NULL;
         bi->bi_phys_segments = 1;       /* over-loaded to count active stripes */
 
+        prepare_to_wait(&conf->wait_for_overlap, &w, TASK_UNINTERRUPTIBLE);
         for (;logical_sector < last_sector; logical_sector += STRIPE_SECTORS) {
-                DEFINE_WAIT(w);
                 int previous;
                 int seq;
 
+                do_prepare = false;
         retry:
                 seq = read_seqcount_begin(&conf->gen_lock);
                 previous = 0;
-                prepare_to_wait(&conf->wait_for_overlap, &w, TASK_UNINTERRUPTIBLE);
+                if (do_prepare)
+                        prepare_to_wait(&conf->wait_for_overlap, &w,
+                                TASK_UNINTERRUPTIBLE);
                 if (unlikely(conf->reshape_progress != MaxSector)) {
                         /* spinlock is needed as reshape_progress may be
                          * 64bit on a 32bit platform, and so it might be
@@ -4604,6 +4604,7 @@ static void make_request(struct mddev *mddev, struct bio * bi)
                                     : logical_sector >= conf->reshape_safe) {
                                         spin_unlock_irq(&conf->device_lock);
                                         schedule();
+                                        do_prepare = true;
                                         goto retry;
                                 }
                         }
@@ -4640,6 +4641,7 @@ static void make_request(struct mddev *mddev, struct bio * bi)
                                 if (must_retry) {
                                         release_stripe(sh);
                                         schedule();
+                                        do_prepare = true;
                                         goto retry;
                                 }
                         }
@@ -4663,8 +4665,10 @@ static void make_request(struct mddev *mddev, struct bio * bi)
                                 prepare_to_wait(&conf->wait_for_overlap,
                                                 &w, TASK_INTERRUPTIBLE);
                                 if (logical_sector >= mddev->suspend_lo &&
-                                    logical_sector < mddev->suspend_hi)
+                                    logical_sector < mddev->suspend_hi) {
                                         schedule();
+                                        do_prepare = true;
+                                }
                                 goto retry;
                         }
 
@@ -4677,9 +4681,9 @@ static void make_request(struct mddev *mddev, struct bio * bi)
                                 md_wakeup_thread(mddev->thread);
                                 release_stripe(sh);
                                 schedule();
+                                do_prepare = true;
                                 goto retry;
                         }
-                        finish_wait(&conf->wait_for_overlap, &w);
                         set_bit(STRIPE_HANDLE, &sh->state);
                         clear_bit(STRIPE_DELAYED, &sh->state);
                         if ((bi->bi_rw & REQ_SYNC) &&
@@ -4689,10 +4693,10 @@ static void make_request(struct mddev *mddev, struct bio * bi)
                 } else {
                         /* cannot get stripe for read-ahead, just give-up */
                         clear_bit(BIO_UPTODATE, &bi->bi_flags);
-                        finish_wait(&conf->wait_for_overlap, &w);
                         break;
                 }
         }
+        finish_wait(&conf->wait_for_overlap, &w);
 
         remaining = raid5_dec_bi_active_stripes(bi);
         if (remaining == 0) {
diff --git a/drivers/media/dvb-frontends/drx39xyj/Kconfig b/drivers/media/dvb-frontends/drx39xyj/Kconfig
index 15628eb5cf0c..6c2ccb6a506b 100644
--- a/drivers/media/dvb-frontends/drx39xyj/Kconfig
+++ b/drivers/media/dvb-frontends/drx39xyj/Kconfig
@@ -1,7 +1,7 @@
 config DVB_DRX39XYJ
         tristate "Micronas DRX-J demodulator"
         depends on DVB_CORE && I2C
-        default m if DVB_FE_CUSTOMISE
+        default m if !MEDIA_SUBDRV_AUTOSELECT
         help
           An ATSC 8VSB and QAM64/256 tuner module. Say Y when you want
           to support this frontend.
diff --git a/drivers/media/dvb-frontends/lgdt3305.c b/drivers/media/dvb-frontends/lgdt3305.c
index 1d2c47378cf8..92c891a571ab 100644
--- a/drivers/media/dvb-frontends/lgdt3305.c
+++ b/drivers/media/dvb-frontends/lgdt3305.c
@@ -1176,6 +1176,7 @@ static struct dvb_frontend_ops lgdt3304_ops = {
         },
         .i2c_gate_ctrl        = lgdt3305_i2c_gate_ctrl,
         .init                 = lgdt3305_init,
+        .sleep                = lgdt3305_sleep,
         .set_frontend         = lgdt3304_set_parameters,
         .get_frontend         = lgdt3305_get_frontend,
         .get_tune_settings    = lgdt3305_get_tune_settings,
diff --git a/drivers/media/dvb-frontends/m88rs2000.c b/drivers/media/dvb-frontends/m88rs2000.c
index 32cffca14d0b..d63bc9c13dce 100644
--- a/drivers/media/dvb-frontends/m88rs2000.c
+++ b/drivers/media/dvb-frontends/m88rs2000.c
@@ -297,7 +297,7 @@ struct inittab {
         u8 val;
 };
 
-struct inittab m88rs2000_setup[] = {
+static struct inittab m88rs2000_setup[] = {
         {DEMOD_WRITE, 0x9a, 0x30},
         {DEMOD_WRITE, 0x00, 0x01},
         {WRITE_DELAY, 0x19, 0x00},
@@ -315,7 +315,7 @@ struct inittab m88rs2000_setup[] = {
         {0xff, 0xaa, 0xff}
 };
 
-struct inittab m88rs2000_shutdown[] = {
+static struct inittab m88rs2000_shutdown[] = {
         {DEMOD_WRITE, 0x9a, 0x30},
         {DEMOD_WRITE, 0xb0, 0x00},
         {DEMOD_WRITE, 0xf1, 0x89},
@@ -325,7 +325,7 @@ struct inittab m88rs2000_shutdown[] = {
         {0xff, 0xaa, 0xff}
 };
 
-struct inittab fe_reset[] = {
+static struct inittab fe_reset[] = {
         {DEMOD_WRITE, 0x00, 0x01},
         {DEMOD_WRITE, 0x20, 0x81},
         {DEMOD_WRITE, 0x21, 0x80},
@@ -363,7 +363,7 @@ struct inittab fe_reset[] = {
         {0xff, 0xaa, 0xff}
 };
 
-struct inittab fe_trigger[] = {
+static struct inittab fe_trigger[] = {
         {DEMOD_WRITE, 0x97, 0x04},
         {DEMOD_WRITE, 0x99, 0x77},
         {DEMOD_WRITE, 0x9b, 0x64},
diff --git a/drivers/media/platform/ti-vpe/vpe.c b/drivers/media/platform/ti-vpe/vpe.c
index 7a77a5b7a075..5c421886d97c 100644
--- a/drivers/media/platform/ti-vpe/vpe.c
+++ b/drivers/media/platform/ti-vpe/vpe.c
@@ -49,8 +49,8 @@
 #define VPE_MODULE_NAME "vpe"
 
 /* minimum and maximum frame sizes */
-#define MIN_W           128
-#define MIN_H           128
+#define MIN_W           32
+#define MIN_H           32
 #define MAX_W           1920
 #define MAX_H           1080
 
@@ -887,6 +887,9 @@ static int job_ready(void *priv)
         if (v4l2_m2m_num_src_bufs_ready(ctx->m2m_ctx) < needed)
                 return 0;
 
+        if (v4l2_m2m_num_dst_bufs_ready(ctx->m2m_ctx) < needed)
+                return 0;
+
         return 1;
 }
 
@@ -1277,18 +1280,17 @@ static irqreturn_t vpe_irq(int irq_vpe, void *data)
         s_buf = &s_vb->v4l2_buf;
         d_buf = &d_vb->v4l2_buf;
 
+        d_buf->flags = s_buf->flags;
+
         d_buf->timestamp = s_buf->timestamp;
-        d_buf->flags &= ~V4L2_BUF_FLAG_TSTAMP_SRC_MASK;
-        d_buf->flags |= s_buf->flags & V4L2_BUF_FLAG_TSTAMP_SRC_MASK;
-        if (s_buf->flags & V4L2_BUF_FLAG_TIMECODE) {
-                d_buf->flags |= V4L2_BUF_FLAG_TIMECODE;
+        if (s_buf->flags & V4L2_BUF_FLAG_TIMECODE)
                 d_buf->timecode = s_buf->timecode;
-        }
+
         d_buf->sequence = ctx->sequence;
-        d_buf->field = ctx->field;
 
         d_q_data = &ctx->q_data[Q_DATA_DST];
         if (d_q_data->flags & Q_DATA_INTERLACED) {
+                d_buf->field = ctx->field;
                 if (ctx->field == V4L2_FIELD_BOTTOM) {
                         ctx->sequence++;
                         ctx->field = V4L2_FIELD_TOP;
@@ -1297,6 +1299,7 @@ static irqreturn_t vpe_irq(int irq_vpe, void *data)
                         ctx->field = V4L2_FIELD_BOTTOM;
                 }
         } else {
+                d_buf->field = V4L2_FIELD_NONE;
                 ctx->sequence++;
         }
 
@@ -1335,8 +1338,9 @@ static int vpe_querycap(struct file *file, void *priv,
 {
         strncpy(cap->driver, VPE_MODULE_NAME, sizeof(cap->driver) - 1);
         strncpy(cap->card, VPE_MODULE_NAME, sizeof(cap->card) - 1);
-        strlcpy(cap->bus_info, VPE_MODULE_NAME, sizeof(cap->bus_info));
-        cap->device_caps  = V4L2_CAP_VIDEO_M2M | V4L2_CAP_STREAMING;
+        snprintf(cap->bus_info, sizeof(cap->bus_info), "platform:%s",
+                VPE_MODULE_NAME);
+        cap->device_caps  = V4L2_CAP_VIDEO_M2M_MPLANE | V4L2_CAP_STREAMING;
         cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS;
         return 0;
 }
@@ -1476,6 +1480,7 @@ static int __vpe_try_fmt(struct vpe_ctx *ctx, struct v4l2_format *f,
                 }
         }
 
+        memset(pix->reserved, 0, sizeof(pix->reserved));
         for (i = 0; i < pix->num_planes; i++) {
                 plane_fmt = &pix->plane_fmt[i];
                 depth = fmt->vpdma_fmt[i]->depth;
@@ -1487,6 +1492,8 @@ static int __vpe_try_fmt(struct vpe_ctx *ctx, struct v4l2_format *f,
 
                 plane_fmt->sizeimage =
                                 (pix->height * pix->width * depth) >> 3;
+
+                memset(plane_fmt->reserved, 0, sizeof(plane_fmt->reserved));
         }
 
         return 0;
@@ -1717,6 +1724,16 @@ static int vpe_buf_prepare(struct vb2_buffer *vb)
         q_data = get_q_data(ctx, vb->vb2_queue->type);
         num_planes = q_data->fmt->coplanar ? 2 : 1;
 
+        if (vb->vb2_queue->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
+                if (!(q_data->flags & Q_DATA_INTERLACED)) {
+                        vb->v4l2_buf.field = V4L2_FIELD_NONE;
+                } else {
+                        if (vb->v4l2_buf.field != V4L2_FIELD_TOP &&
+                                        vb->v4l2_buf.field != V4L2_FIELD_BOTTOM)
+                                return -EINVAL;
+                }
+        }
+
         for (i = 0; i < num_planes; i++) {
                 if (vb2_plane_size(vb, i) < q_data->sizeimage[i]) {
                         vpe_err(ctx->dev,
@@ -1866,9 +1883,11 @@ static int vpe_open(struct file *file)
         s_q_data->fmt = &vpe_formats[2];
         s_q_data->width = 1920;
         s_q_data->height = 1080;
-        s_q_data->sizeimage[VPE_LUMA] = (s_q_data->width * s_q_data->height *
+        s_q_data->bytesperline[VPE_LUMA] = (s_q_data->width *
                         s_q_data->fmt->vpdma_fmt[VPE_LUMA]->depth) >> 3;
-        s_q_data->colorspace = V4L2_COLORSPACE_SMPTE170M;
+        s_q_data->sizeimage[VPE_LUMA] = (s_q_data->bytesperline[VPE_LUMA] *
+                        s_q_data->height);
+        s_q_data->colorspace = V4L2_COLORSPACE_REC709;
         s_q_data->field = V4L2_FIELD_NONE;
         s_q_data->c_rect.left = 0;
         s_q_data->c_rect.top = 0;
@@ -2002,7 +2021,7 @@ static struct video_device vpe_videodev = {
         .fops           = &vpe_fops,
         .ioctl_ops      = &vpe_ioctl_ops,
         .minor          = -1,
-        .release        = video_device_release,
+        .release        = video_device_release_empty,
         .vfl_dir        = VFL_DIR_M2M,
 };
 
diff --git a/drivers/media/rc/img-ir/img-ir-hw.c b/drivers/media/rc/img-ir/img-ir-hw.c
index 579a52b3edce..0127dd257a57 100644
--- a/drivers/media/rc/img-ir/img-ir-hw.c
+++ b/drivers/media/rc/img-ir/img-ir-hw.c
@@ -504,6 +504,18 @@ unlock:
         return ret;
 }
 
+static int img_ir_set_normal_filter(struct rc_dev *dev,
+                                    struct rc_scancode_filter *sc_filter)
+{
+        return img_ir_set_filter(dev, RC_FILTER_NORMAL, sc_filter); 
+}
+
+static int img_ir_set_wakeup_filter(struct rc_dev *dev,
+                                    struct rc_scancode_filter *sc_filter)
+{
+        return img_ir_set_filter(dev, RC_FILTER_WAKEUP, sc_filter);
+}
+
 /**
  * img_ir_set_decoder() - Set the current decoder.
  * @priv:       IR private data.
@@ -986,7 +998,8 @@ int img_ir_probe_hw(struct img_ir_priv *priv)
         rdev->map_name = RC_MAP_EMPTY;
         rc_set_allowed_protocols(rdev, img_ir_allowed_protos(priv));
         rdev->input_name = "IMG Infrared Decoder";
-        rdev->s_filter = img_ir_set_filter;
+        rdev->s_filter = img_ir_set_normal_filter;
+        rdev->s_wakeup_filter = img_ir_set_wakeup_filter;
 
         /* Register hardware decoder */
         error = rc_register_device(rdev);
diff --git a/drivers/media/rc/img-ir/img-ir-nec.c b/drivers/media/rc/img-ir/img-ir-nec.c
index e7a731bc3a9b..751d9d945269 100644
--- a/drivers/media/rc/img-ir/img-ir-nec.c
+++ b/drivers/media/rc/img-ir/img-ir-nec.c
@@ -5,6 +5,7 @@
  */
 
 #include "img-ir-hw.h"
+#include <linux/bitrev.h>
 
 /* Convert NEC data to a scancode */
 static int img_ir_nec_scancode(int len, u64 raw, int *scancode, u64 protocols)
@@ -22,11 +23,11 @@ static int img_ir_nec_scancode(int len, u64 raw, int *scancode, u64 protocols)
         data_inv = (raw >> 24) & 0xff;
         if ((data_inv ^ data) != 0xff) {
                 /* 32-bit NEC (used by Apple and TiVo remotes) */
-                /* scan encoding: aaAAddDD */
-                *scancode = addr_inv << 24 |
-                            addr     << 16 |
-                            data_inv <<  8 |
-                            data;
+                /* scan encoding: as transmitted, MSBit = first received bit */
+                *scancode = bitrev8(addr)     << 24 |
+                            bitrev8(addr_inv) << 16 |
+                            bitrev8(data)     <<  8 |
+                            bitrev8(data_inv);
         } else if ((addr_inv ^ addr) != 0xff) {
                 /* Extended NEC */
                 /* scan encoding: AAaaDD */
@@ -54,13 +55,15 @@ static int img_ir_nec_filter(const struct rc_scancode_filter *in,
 
         if ((in->data | in->mask) & 0xff000000) {
                 /* 32-bit NEC (used by Apple and TiVo remotes) */
-                /* scan encoding: aaAAddDD */
-                addr_inv   = (in->data >> 24) & 0xff;
-                addr_inv_m = (in->mask >> 24) & 0xff;
-                addr       = (in->data >> 16) & 0xff;
-                addr_m     = (in->mask >> 16) & 0xff;
-                data_inv   = (in->data >>  8) & 0xff;
-                data_inv_m = (in->mask >>  8) & 0xff;
+                /* scan encoding: as transmitted, MSBit = first received bit */
+                addr       = bitrev8(in->data >> 24);
+                addr_m     = bitrev8(in->mask >> 24);
+                addr_inv   = bitrev8(in->data >> 16);
+                addr_inv_m = bitrev8(in->mask >> 16);
+                data       = bitrev8(in->data >>  8);
+                data_m     = bitrev8(in->mask >>  8);
+                data_inv   = bitrev8(in->data >>  0);
+                data_inv_m = bitrev8(in->mask >>  0);
         } else if ((in->data | in->mask) & 0x00ff0000) {
                 /* Extended NEC */
                 /* scan encoding AAaaDD */
diff --git a/drivers/media/rc/ir-nec-decoder.c b/drivers/media/rc/ir-nec-decoder.c
index 9de1791d2494..35c42e5e270b 100644
--- a/drivers/media/rc/ir-nec-decoder.c
+++ b/drivers/media/rc/ir-nec-decoder.c
@@ -172,10 +172,7 @@ static int ir_nec_decode(struct rc_dev *dev, struct ir_raw_event ev)
                 if (send_32bits) {
                         /* NEC transport, but modified protocol, used by at
                          * least Apple and TiVo remotes */
-                        scancode = not_address << 24 |
-                                   address     << 16 |
-                                   not_command <<  8 |
-                                   command;
+                        scancode = data->bits;
                         IR_dprintk(1, "NEC (modified) scancode 0x%08x\n", scancode);
                 } else if ((address ^ not_address) != 0xff) {
                         /* Extended NEC */
diff --git a/drivers/media/rc/keymaps/rc-tivo.c b/drivers/media/rc/keymaps/rc-tivo.c
index 5cc1b456e329..454e06295692 100644
--- a/drivers/media/rc/keymaps/rc-tivo.c
+++ b/drivers/media/rc/keymaps/rc-tivo.c
@@ -15,62 +15,62 @@
  * Initial mapping is for the TiVo remote included in the Nero LiquidTV bundle,
  * which also ships with a TiVo-branded IR transceiver, supported by the mceusb
  * driver. Note that the remote uses an NEC-ish protocol, but instead of having
- * a command/not_command pair, it has a vendor ID of 0x3085, but some keys, the
+ * a command/not_command pair, it has a vendor ID of 0xa10c, but some keys, the
  * NEC extended checksums do pass, so the table presently has the intended
  * values and the checksum-passed versions for those keys.
  */
 static struct rc_map_table tivo[] = {
-        { 0x3085f009, KEY_MEDIA },      /* TiVo Button */
-        { 0x3085e010, KEY_POWER2 },     /* TV Power */
-        { 0x3085e011, KEY_TV },         /* Live TV/Swap */
-        { 0x3085c034, KEY_VIDEO_NEXT }, /* TV Input */
-        { 0x3085e013, KEY_INFO },
-        { 0x3085a05f, KEY_CYCLEWINDOWS }, /* Window */
+        { 0xa10c900f, KEY_MEDIA },      /* TiVo Button */
+        { 0xa10c0807, KEY_POWER2 },     /* TV Power */
+        { 0xa10c8807, KEY_TV },         /* Live TV/Swap */
+        { 0xa10c2c03, KEY_VIDEO_NEXT }, /* TV Input */
+        { 0xa10cc807, KEY_INFO },
+        { 0xa10cfa05, KEY_CYCLEWINDOWS }, /* Window */
         { 0x0085305f, KEY_CYCLEWINDOWS },
-        { 0x3085c036, KEY_EPG },        /* Guide */
+        { 0xa10c6c03, KEY_EPG },        /* Guide */
 
-        { 0x3085e014, KEY_UP },
-        { 0x3085e016, KEY_DOWN },
-        { 0x3085e017, KEY_LEFT },
-        { 0x3085e015, KEY_RIGHT },
+        { 0xa10c2807, KEY_UP },
+        { 0xa10c6807, KEY_DOWN },
+        { 0xa10ce807, KEY_LEFT },
+        { 0xa10ca807, KEY_RIGHT },
 
-        { 0x3085e018, KEY_SCROLLDOWN }, /* Red Thumbs Down */
-        { 0x3085e019, KEY_SELECT },
-        { 0x3085e01a, KEY_SCROLLUP },   /* Green Thumbs Up */
+        { 0xa10c1807, KEY_SCROLLDOWN }, /* Red Thumbs Down */
+        { 0xa10c9807, KEY_SELECT },
+        { 0xa10c5807, KEY_SCROLLUP },   /* Green Thumbs Up */
 
-        { 0x3085e01c, KEY_VOLUMEUP },
-        { 0x3085e01d, KEY_VOLUMEDOWN },
-        { 0x3085e01b, KEY_MUTE },
-        { 0x3085d020, KEY_RECORD },
-        { 0x3085e01e, KEY_CHANNELUP },
-        { 0x3085e01f, KEY_CHANNELDOWN },
+        { 0xa10c3807, KEY_VOLUMEUP },
+        { 0xa10cb807, KEY_VOLUMEDOWN },
+        { 0xa10cd807, KEY_MUTE },
+        { 0xa10c040b, KEY_RECORD },
+        { 0xa10c7807, KEY_CHANNELUP },
+        { 0xa10cf807, KEY_CHANNELDOWN },
         { 0x0085301f, KEY_CHANNELDOWN },
 
-        { 0x3085d021, KEY_PLAY },
-        { 0x3085d023, KEY_PAUSE },
-        { 0x3085d025, KEY_SLOW },
-        { 0x3085d022, KEY_REWIND },
-        { 0x3085d024, KEY_FASTFORWARD },
-        { 0x3085d026, KEY_PREVIOUS },
-        { 0x3085d027, KEY_NEXT },       /* ->| */
+        { 0xa10c840b, KEY_PLAY },
+        { 0xa10cc40b, KEY_PAUSE },
+        { 0xa10ca40b, KEY_SLOW },
+        { 0xa10c440b, KEY_REWIND },
+        { 0xa10c240b, KEY_FASTFORWARD },
+        { 0xa10c640b, KEY_PREVIOUS },
+        { 0xa10ce40b, KEY_NEXT },       /* ->| */
 
-        { 0x3085b044, KEY_ZOOM },       /* Aspect */
-        { 0x3085b048, KEY_STOP },
-        { 0x3085b04a, KEY_DVD },        /* DVD Menu */
+        { 0xa10c220d, KEY_ZOOM },       /* Aspect */
+        { 0xa10c120d, KEY_STOP },
+        { 0xa10c520d, KEY_DVD },        /* DVD Menu */
 
-        { 0x3085d028, KEY_NUMERIC_1 },
-        { 0x3085d029, KEY_NUMERIC_2 },
-        { 0x3085d02a, KEY_NUMERIC_3 },
-        { 0x3085d02b, KEY_NUMERIC_4 },
-        { 0x3085d02c, KEY_NUMERIC_5 },
-        { 0x3085d02d, KEY_NUMERIC_6 },
-        { 0x3085d02e, KEY_NUMERIC_7 },
-        { 0x3085d02f, KEY_NUMERIC_8 },
+        { 0xa10c140b, KEY_NUMERIC_1 },
+        { 0xa10c940b, KEY_NUMERIC_2 },
+        { 0xa10c540b, KEY_NUMERIC_3 },
+        { 0xa10cd40b, KEY_NUMERIC_4 },
+        { 0xa10c340b, KEY_NUMERIC_5 },
+        { 0xa10cb40b, KEY_NUMERIC_6 },
+        { 0xa10c740b, KEY_NUMERIC_7 },
+        { 0xa10cf40b, KEY_NUMERIC_8 },
         { 0x0085302f, KEY_NUMERIC_8 },
-        { 0x3085c030, KEY_NUMERIC_9 },
-        { 0x3085c031, KEY_NUMERIC_0 },
-        { 0x3085c033, KEY_ENTER },
-        { 0x3085c032, KEY_CLEAR },
+        { 0xa10c0c03, KEY_NUMERIC_9 },
+        { 0xa10c8c03, KEY_NUMERIC_0 },
+        { 0xa10ccc03, KEY_ENTER },
+        { 0xa10c4c03, KEY_CLEAR },
 };
 
 static struct rc_map_list tivo_map = {
diff --git a/drivers/media/rc/rc-main.c b/drivers/media/rc/rc-main.c
index 99697aae92ff..970b93d6f399 100644
--- a/drivers/media/rc/rc-main.c
+++ b/drivers/media/rc/rc-main.c
@@ -633,19 +633,13 @@ EXPORT_SYMBOL_GPL(rc_repeat);
 static void ir_do_keydown(struct rc_dev *dev, int scancode,
                           u32 keycode, u8 toggle)
 {
-        struct rc_scancode_filter *filter;
-        bool new_event = !dev->keypressed ||
-                         dev->last_scancode != scancode ||
-                         dev->last_toggle != toggle;
+        bool new_event = (!dev->keypressed               ||
+                          dev->last_scancode != scancode ||
+                          dev->last_toggle != toggle);
 
         if (new_event && dev->keypressed)
                 ir_do_keyup(dev, false);
 
-        /* Generic scancode filtering */
-        filter = &dev->scancode_filters[RC_FILTER_NORMAL];
-        if (filter->mask && ((scancode ^ filter->data) & filter->mask))
-                return;
-
         input_event(dev->input_dev, EV_MSC, MSC_SCAN, scancode);
 
         if (new_event && keycode != KEY_RESERVED) {
@@ -923,6 +917,7 @@ static ssize_t store_protocols(struct device *device,
         int rc, i, count = 0;
         ssize_t ret;
         int (*change_protocol)(struct rc_dev *dev, u64 *rc_type);
+        int (*set_filter)(struct rc_dev *dev, struct rc_scancode_filter *filter);
         struct rc_scancode_filter local_filter, *filter;
 
         /* Device is being removed */
@@ -1007,24 +1002,23 @@ static ssize_t store_protocols(struct device *device,
          * Fall back to clearing the filter.
          */
         filter = &dev->scancode_filters[fattr->type];
-        if (old_type != type && filter->mask) {
+        set_filter = (fattr->type == RC_FILTER_NORMAL)
+                ? dev->s_filter : dev->s_wakeup_filter;
+
+        if (set_filter && old_type != type && filter->mask) {
                 local_filter = *filter;
                 if (!type) {
                         /* no protocol => clear filter */
                         ret = -1;
-                } else if (!dev->s_filter) {
-                        /* generic filtering => accept any filter */
-                        ret = 0;
                 } else {
                         /* hardware filtering => try setting, otherwise clear */
-                        ret = dev->s_filter(dev, fattr->type, &local_filter);
+                        ret = set_filter(dev, &local_filter);
                 }
                 if (ret < 0) {
                         /* clear the filter */
                         local_filter.data = 0;
                         local_filter.mask = 0;
-                        if (dev->s_filter)
-                                dev->s_filter(dev, fattr->type, &local_filter);
+                        set_filter(dev, &local_filter);
                 }
 
                 /* commit the new filter */
@@ -1068,7 +1062,10 @@ static ssize_t show_filter(struct device *device,
                 return -EINVAL;
 
         mutex_lock(&dev->lock);
-        if (fattr->mask)
+        if ((fattr->type == RC_FILTER_NORMAL && !dev->s_filter) ||
+            (fattr->type == RC_FILTER_WAKEUP && !dev->s_wakeup_filter))
+                val = 0;
+        else if (fattr->mask)
                 val = dev->scancode_filters[fattr->type].mask;
         else
                 val = dev->scancode_filters[fattr->type].data;
@@ -1106,6 +1103,7 @@ static ssize_t store_filter(struct device *device,
         struct rc_scancode_filter local_filter, *filter;
         int ret;
         unsigned long val;
+        int (*set_filter)(struct rc_dev *dev, struct rc_scancode_filter *filter);
 
         /* Device is being removed */
         if (!dev)
@@ -1115,9 +1113,11 @@ static ssize_t store_filter(struct device *device,
         if (ret < 0)
                 return ret;
 
-        /* Scancode filter not supported (but still accept 0) */
-        if (!dev->s_filter && fattr->type != RC_FILTER_NORMAL)
-                return val ? -EINVAL : count;
+        /* Can the scancode filter be set? */
+        set_filter = (fattr->type == RC_FILTER_NORMAL) ? dev->s_filter :
+                                                         dev->s_wakeup_filter;
+        if (!set_filter)
+                return -EINVAL;
 
         mutex_lock(&dev->lock);
 
@@ -1128,16 +1128,16 @@ static ssize_t store_filter(struct device *device,
                 local_filter.mask = val;
         else
                 local_filter.data = val;
+
         if (!dev->enabled_protocols[fattr->type] && local_filter.mask) {
                 /* refuse to set a filter unless a protocol is enabled */
                 ret = -EINVAL;
                 goto unlock;
         }
-        if (dev->s_filter) {
-                ret = dev->s_filter(dev, fattr->type, &local_filter);
-                if (ret < 0)
-                        goto unlock;
-        }
+
+        ret = set_filter(dev, &local_filter);
+        if (ret < 0)
+                goto unlock;
 
         /* Success, commit the new filter */
         *filter = local_filter;
@@ -1189,27 +1189,45 @@ static RC_FILTER_ATTR(wakeup_filter, S_IRUGO|S_IWUSR,
 static RC_FILTER_ATTR(wakeup_filter_mask, S_IRUGO|S_IWUSR,
                       show_filter, store_filter, RC_FILTER_WAKEUP, true);
 
-static struct attribute *rc_dev_attrs[] = {
+static struct attribute *rc_dev_protocol_attrs[] = {
         &dev_attr_protocols.attr.attr,
+        NULL,
+};
+
+static struct attribute_group rc_dev_protocol_attr_grp = {
+        .attrs  = rc_dev_protocol_attrs,
+};
+
+static struct attribute *rc_dev_wakeup_protocol_attrs[] = {
         &dev_attr_wakeup_protocols.attr.attr,
+        NULL,
+};
+
+static struct attribute_group rc_dev_wakeup_protocol_attr_grp = {
+        .attrs  = rc_dev_wakeup_protocol_attrs,
+};
+
+static struct attribute *rc_dev_filter_attrs[] = {
         &dev_attr_filter.attr.attr,
         &dev_attr_filter_mask.attr.attr,
-        &dev_attr_wakeup_filter.attr.attr,
-        &dev_attr_wakeup_filter_mask.attr.attr,
         NULL,
 };
 
-static struct attribute_group rc_dev_attr_grp = {
-        .attrs  = rc_dev_attrs,
+static struct attribute_group rc_dev_filter_attr_grp = {
+        .attrs  = rc_dev_filter_attrs,
 };
 
-static const struct attribute_group *rc_dev_attr_groups[] = {
-        &rc_dev_attr_grp,
-        NULL
+static struct attribute *rc_dev_wakeup_filter_attrs[] = {
+        &dev_attr_wakeup_filter.attr.attr,
+        &dev_attr_wakeup_filter_mask.attr.attr,
+        NULL,
+};
+
+static struct attribute_group rc_dev_wakeup_filter_attr_grp = {
+        .attrs  = rc_dev_wakeup_filter_attrs,
 };
 
 static struct device_type rc_dev_type = {
-        .groups         = rc_dev_attr_groups,
         .release        = rc_dev_release,
         .uevent         = rc_dev_uevent,
 };
@@ -1266,7 +1284,7 @@ int rc_register_device(struct rc_dev *dev)
         static bool raw_init = false; /* raw decoders loaded? */
         struct rc_map *rc_map;
         const char *path;
-        int rc, devno;
+        int rc, devno, attr = 0;
 
         if (!dev || !dev->map_name)
                 return -EINVAL;
@@ -1294,6 +1312,16 @@ int rc_register_device(struct rc_dev *dev)
                         return -ENOMEM;
         } while (test_and_set_bit(devno, ir_core_dev_number));
 
+        dev->dev.groups = dev->sysfs_groups;
+        dev->sysfs_groups[attr++] = &rc_dev_protocol_attr_grp;
+        if (dev->s_filter)
+                dev->sysfs_groups[attr++] = &rc_dev_filter_attr_grp;    
+        if (dev->s_wakeup_filter)
+                dev->sysfs_groups[attr++] = &rc_dev_wakeup_filter_attr_grp;
+        if (dev->change_wakeup_protocol)
+                dev->sysfs_groups[attr++] = &rc_dev_wakeup_protocol_attr_grp;
+        dev->sysfs_groups[attr++] = NULL;
+
         /*
          * Take the lock here, as the device sysfs node will appear
          * when device_add() is called, which may trigger an ir-keytable udev
diff --git a/drivers/media/tuners/r820t.c b/drivers/media/tuners/r820t.c
index 319adc4f0561..96ccfebce7ca 100644
--- a/drivers/media/tuners/r820t.c
+++ b/drivers/media/tuners/r820t.c
@@ -1468,7 +1468,8 @@ static int r820t_imr_prepare(struct r820t_priv *priv)
 static int r820t_multi_read(struct r820t_priv *priv)
 {
         int rc, i;
-        u8 data[2], min = 0, max = 255, sum = 0;
+        u16 sum = 0;
+        u8 data[2], min = 255, max = 0;
 
         usleep_range(5000, 6000);
 
diff --git a/drivers/media/tuners/tuner-xc2028.c b/drivers/media/tuners/tuner-xc2028.c
index 76a816511f2f..6ef93ee1fdcb 100644
--- a/drivers/media/tuners/tuner-xc2028.c
+++ b/drivers/media/tuners/tuner-xc2028.c
@@ -1107,6 +1107,7 @@ static int generic_set_freq(struct dvb_frontend *fe, u32 freq /* in HZ */,
                                 offset += 200000;
                 }
 #endif
+                break;
         default:
                 tuner_err("Unsupported tuner type %d.\n", new_type);
                 break;
diff --git a/drivers/media/usb/dvb-usb-v2/rtl28xxu.c b/drivers/media/usb/dvb-usb-v2/rtl28xxu.c
index c83c16cece01..61d196e8b3ab 100644
--- a/drivers/media/usb/dvb-usb-v2/rtl28xxu.c
+++ b/drivers/media/usb/dvb-usb-v2/rtl28xxu.c
@@ -1503,8 +1503,6 @@ static const struct usb_device_id rtl28xxu_id_table[] = {
         /* RTL2832P devices: */
         { DVB_USB_DEVICE(USB_VID_HANFTEK, 0x0131,
                 &rtl2832u_props, "Astrometa DVB-T2", NULL) },
-        { DVB_USB_DEVICE(USB_VID_KYE, 0x707f,
-                &rtl2832u_props, "Genius TVGo DVB-T03", NULL) },
         { }
 };
 MODULE_DEVICE_TABLE(usb, rtl28xxu_id_table);
diff --git a/drivers/media/usb/gspca/jpeg.h b/drivers/media/usb/gspca/jpeg.h
index ab54910418b4..0aa2b671faa4 100644
--- a/drivers/media/usb/gspca/jpeg.h
+++ b/drivers/media/usb/gspca/jpeg.h
@@ -154,7 +154,9 @@ static void jpeg_set_qual(u8 *jpeg_hdr,
 {
         int i, sc;
 
-        if (quality < 50)
+        if (quality <= 0)
+                sc = 5000;
+        else if (quality < 50)
                 sc = 5000 / quality;
         else
                 sc = 200 - quality * 2;
diff --git a/drivers/media/usb/stk1160/stk1160-ac97.c b/drivers/media/usb/stk1160/stk1160-ac97.c
index c46c8be89602..2dd308f9541f 100644
--- a/drivers/media/usb/stk1160/stk1160-ac97.c
+++ b/drivers/media/usb/stk1160/stk1160-ac97.c
@@ -108,7 +108,7 @@ int stk1160_ac97_register(struct stk1160 *dev)
                  "stk1160-mixer");
         snprintf(card->longname, sizeof(card->longname),
                  "stk1160 ac97 codec mixer control");
-        strncpy(card->driver, dev->dev->driver->name, sizeof(card->driver));
+        strlcpy(card->driver, dev->dev->driver->name, sizeof(card->driver));
 
         rc = snd_ac97_bus(card, 0, &stk1160_ac97_ops, NULL, &ac97_bus);
         if (rc)
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index d9f85464b362..69aff72c8957 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -4492,6 +4492,7 @@ static int __init bonding_init(void)
 out:
         return res;
 err:
+        bond_destroy_debugfs();
         bond_netlink_fini();
 err_link:
         unregister_pernet_subsys(&bond_net_ops);
diff --git a/drivers/net/ethernet/8390/apne.c b/drivers/net/ethernet/8390/apne.c
index 30104b60da85..c56ac9ebc08f 100644
--- a/drivers/net/ethernet/8390/apne.c
+++ b/drivers/net/ethernet/8390/apne.c
@@ -560,9 +560,7 @@ static struct net_device *apne_dev;
 static int __init apne_module_init(void)
 {
         apne_dev = apne_probe(-1);
-        if (IS_ERR(apne_dev))
-                return PTR_ERR(apne_dev);
-        return 0;
+        return PTR_ERR_OR_ZERO(apne_dev);
 }
 
 static void __exit apne_module_exit(void)
diff --git a/drivers/net/ethernet/allwinner/sun4i-emac.c b/drivers/net/ethernet/allwinner/sun4i-emac.c
index fcaeeb8a4929..28460676b8ca 100644
--- a/drivers/net/ethernet/allwinner/sun4i-emac.c
+++ b/drivers/net/ethernet/allwinner/sun4i-emac.c
@@ -268,15 +268,6 @@ static unsigned int emac_setup(struct net_device *ndev)
         writel(reg_val | EMAC_TX_MODE_ABORTED_FRAME_EN,
                 db->membase + EMAC_TX_MODE_REG);
 
-        /* set up RX */
-        reg_val = readl(db->membase + EMAC_RX_CTL_REG);
-
-        writel(reg_val | EMAC_RX_CTL_PASS_LEN_OOR_EN |
-                EMAC_RX_CTL_ACCEPT_UNICAST_EN | EMAC_RX_CTL_DA_FILTER_EN |
-                EMAC_RX_CTL_ACCEPT_MULTICAST_EN |
-                EMAC_RX_CTL_ACCEPT_BROADCAST_EN,
-                db->membase + EMAC_RX_CTL_REG);
-
         /* set MAC */
         /* set MAC CTL0 */
         reg_val = readl(db->membase + EMAC_MAC_CTL0_REG);
@@ -309,6 +300,26 @@ static unsigned int emac_setup(struct net_device *ndev)
         return 0;
 }
 
+static void emac_set_rx_mode(struct net_device *ndev)
+{
+        struct emac_board_info *db = netdev_priv(ndev);
+        unsigned int reg_val;
+
+        /* set up RX */
+        reg_val = readl(db->membase + EMAC_RX_CTL_REG);
+
+        if (ndev->flags & IFF_PROMISC)
+                reg_val |= EMAC_RX_CTL_PASS_ALL_EN;
+        else
+                reg_val &= ~EMAC_RX_CTL_PASS_ALL_EN;
+
+        writel(reg_val | EMAC_RX_CTL_PASS_LEN_OOR_EN |
+                EMAC_RX_CTL_ACCEPT_UNICAST_EN | EMAC_RX_CTL_DA_FILTER_EN |
+                EMAC_RX_CTL_ACCEPT_MULTICAST_EN |
+                EMAC_RX_CTL_ACCEPT_BROADCAST_EN,
+                db->membase + EMAC_RX_CTL_REG);
+}
+
 static unsigned int emac_powerup(struct net_device *ndev)
 {
         struct emac_board_info *db = netdev_priv(ndev);
@@ -782,6 +793,7 @@ static const struct net_device_ops emac_netdev_ops = {
         .ndo_stop               = emac_stop,
         .ndo_start_xmit         = emac_start_xmit,
         .ndo_tx_timeout         = emac_timeout,
+        .ndo_set_rx_mode        = emac_set_rx_mode,
         .ndo_do_ioctl           = emac_ioctl,
         .ndo_change_mtu         = eth_change_mtu,
         .ndo_validate_addr      = eth_validate_addr,
diff --git a/drivers/net/ethernet/broadcom/bnx2.c b/drivers/net/ethernet/broadcom/bnx2.c
index a8efb18e42fa..0ab83708b6a1 100644
--- a/drivers/net/ethernet/broadcom/bnx2.c
+++ b/drivers/net/ethernet/broadcom/bnx2.c
@@ -8627,6 +8627,7 @@ bnx2_remove_one(struct pci_dev *pdev)
         pci_disable_device(pdev);
 }
 
+#ifdef CONFIG_PM_SLEEP
 static int
 bnx2_suspend(struct device *device)
 {
@@ -8665,7 +8666,6 @@ bnx2_resume(struct device *device)
         return 0;
 }
 
-#ifdef CONFIG_PM_SLEEP
 static SIMPLE_DEV_PM_OPS(bnx2_pm_ops, bnx2_suspend, bnx2_resume);
 #define BNX2_PM_OPS (&bnx2_pm_ops)
 
diff --git a/drivers/net/ethernet/cadence/Kconfig b/drivers/net/ethernet/cadence/Kconfig
index 751d5c7b312d..7e49c43b7af3 100644
--- a/drivers/net/ethernet/cadence/Kconfig
+++ b/drivers/net/ethernet/cadence/Kconfig
@@ -4,7 +4,7 @@
 
 config NET_CADENCE
         bool "Cadence devices"
-        depends on HAS_IOMEM
+        depends on HAS_IOMEM && (ARM || AVR32 || COMPILE_TEST)
         default y
         ---help---
           If you have a network (Ethernet) card belonging to this class, say Y.
@@ -22,7 +22,7 @@ if NET_CADENCE
 
 config ARM_AT91_ETHER
         tristate "AT91RM9200 Ethernet support"
-        depends on HAS_DMA
+        depends on HAS_DMA && (ARCH_AT91RM9200 || COMPILE_TEST)
         select MACB
         ---help---
           If you wish to compile a kernel for the AT91RM9200 and enable
@@ -30,7 +30,7 @@ config ARM_AT91_ETHER
 
 config MACB
         tristate "Cadence MACB/GEM support"
-        depends on HAS_DMA
+        depends on HAS_DMA && (PLATFORM_AT32AP || ARCH_AT91 || ARCH_PICOXCELL || ARCH_ZYNQ || COMPILE_TEST)
         select PHYLIB
         ---help---
           The Cadence MACB ethernet interface is found on many Atmel AT32 and
diff --git a/drivers/net/ethernet/chelsio/cxgb4/l2t.c b/drivers/net/ethernet/chelsio/cxgb4/l2t.c
index 81e8402a74b4..8a96572fdde0 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/l2t.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/l2t.c
@@ -154,7 +154,7 @@ static int write_l2e(struct adapter *adap, struct l2t_entry *e, int sync)
         req->params = htons(L2T_W_PORT(e->lport) | L2T_W_NOREPLY(!sync));
         req->l2t_idx = htons(e->idx);
         req->vlan = htons(e->vlan);
-        if (e->neigh)
+        if (e->neigh && !(e->neigh->dev->flags & IFF_LOOPBACK))
                 memcpy(e->dmac, e->neigh->ha, sizeof(e->dmac));
         memcpy(req->dst_mac, e->dmac, sizeof(req->dst_mac));
 
@@ -394,6 +394,8 @@ struct l2t_entry *cxgb4_l2t_get(struct l2t_data *d, struct neighbour *neigh,
         if (e) {
                 spin_lock(&e->lock);          /* avoid race with t4_l2t_free */
                 e->state = L2T_STATE_RESOLVING;
+                if (neigh->dev->flags & IFF_LOOPBACK)
+                        memcpy(e->dmac, physdev->dev_addr, sizeof(e->dmac));
                 memcpy(e->addr, addr, addr_len);
                 e->ifindex = ifidx;
                 e->hash = hash;
diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
index fb2fe65903c2..bba67681aeaa 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
@@ -682,7 +682,7 @@ enum {
         SF_RD_ID        = 0x9f,       /* read ID */
         SF_ERASE_SECTOR = 0xd8,       /* erase sector */
 
-        FW_MAX_SIZE = 512 * 1024,
+        FW_MAX_SIZE = 16 * SF_SEC_SIZE,
 };
 
 /**
diff --git a/drivers/net/ethernet/emulex/benet/be.h b/drivers/net/ethernet/emulex/benet/be.h
index 8ccaa2520dc3..97db5a7179df 100644
--- a/drivers/net/ethernet/emulex/benet/be.h
+++ b/drivers/net/ethernet/emulex/benet/be.h
@@ -374,6 +374,7 @@ enum vf_state {
 #define BE_FLAGS_NAPI_ENABLED                   (1 << 9)
 #define BE_FLAGS_QNQ_ASYNC_EVT_RCVD             (1 << 11)
 #define BE_FLAGS_VXLAN_OFFLOADS                 (1 << 12)
+#define BE_FLAGS_SETUP_DONE                     (1 << 13)
 
 #define BE_UC_PMAC_COUNT                        30
 #define BE_VF_UC_PMAC_COUNT                     2
diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index 3e6df47b6973..a18645407d21 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -2033,11 +2033,13 @@ static void be_tx_compl_clean(struct be_adapter *adapter)
         bool dummy_wrb;
         int i, pending_txqs;
 
-        /* Wait for a max of 200ms for all the tx-completions to arrive. */
+        /* Stop polling for compls when HW has been silent for 10ms */
         do {
                 pending_txqs = adapter->num_tx_qs;
 
                 for_all_tx_queues(adapter, txo, i) {
+                        cmpl = 0;
+                        num_wrbs = 0;
                         txq = &txo->q;
                         while ((txcp = be_tx_compl_get(&txo->cq))) {
                                 end_idx =
@@ -2050,14 +2052,13 @@ static void be_tx_compl_clean(struct be_adapter *adapter)
                         if (cmpl) {
                                 be_cq_notify(adapter, txo->cq.id, false, cmpl);
                                 atomic_sub(num_wrbs, &txq->used);
-                                cmpl = 0;
-                                num_wrbs = 0;
+                                timeo = 0;
                         }
                         if (atomic_read(&txq->used) == 0)
                                 pending_txqs--;
                 }
 
-                if (pending_txqs == 0 || ++timeo > 200)
+                if (pending_txqs == 0 || ++timeo > 10 || be_hw_error(adapter))
                         break;
 
                 mdelay(1);
@@ -2725,6 +2726,12 @@ static int be_close(struct net_device *netdev)
         struct be_eq_obj *eqo;
         int i;
 
+        /* This protection is needed as be_close() may be called even when the
+         * adapter is in cleared state (after eeh perm failure)
+         */
+        if (!(adapter->flags & BE_FLAGS_SETUP_DONE))
+                return 0;
+
         be_roce_dev_close(adapter);
 
         if (adapter->flags & BE_FLAGS_NAPI_ENABLED) {
@@ -3055,6 +3062,7 @@ static int be_clear(struct be_adapter *adapter)
         be_clear_queues(adapter);
 
         be_msix_disable(adapter);
+        adapter->flags &= ~BE_FLAGS_SETUP_DONE;
         return 0;
 }
 
@@ -3559,6 +3567,7 @@ static int be_setup(struct be_adapter *adapter)
                 adapter->phy.fc_autoneg = 1;
 
         be_schedule_worker(adapter);
+        adapter->flags |= BE_FLAGS_SETUP_DONE;
         return 0;
 err:
         be_clear(adapter);
diff --git a/drivers/net/ethernet/intel/e1000/e1000_hw.c b/drivers/net/ethernet/intel/e1000/e1000_hw.c
index 2879b9631e15..c1d3fdb296a0 100644
--- a/drivers/net/ethernet/intel/e1000/e1000_hw.c
+++ b/drivers/net/ethernet/intel/e1000/e1000_hw.c
@@ -115,8 +115,6 @@ static DEFINE_SPINLOCK(e1000_phy_lock);
  */
 static s32 e1000_set_phy_type(struct e1000_hw *hw)
 {
-        e_dbg("e1000_set_phy_type");
-
         if (hw->mac_type == e1000_undefined)
                 return -E1000_ERR_PHY_TYPE;
 
@@ -159,8 +157,6 @@ static void e1000_phy_init_script(struct e1000_hw *hw)
         u32 ret_val;
         u16 phy_saved_data;
 
-        e_dbg("e1000_phy_init_script");
-
         if (hw->phy_init_script) {
                 msleep(20);
 
@@ -253,8 +249,6 @@ static void e1000_phy_init_script(struct e1000_hw *hw)
  */
 s32 e1000_set_mac_type(struct e1000_hw *hw)
 {
-        e_dbg("e1000_set_mac_type");
-
         switch (hw->device_id) {
         case E1000_DEV_ID_82542:
                 switch (hw->revision_id) {
@@ -365,8 +359,6 @@ void e1000_set_media_type(struct e1000_hw *hw)
 {
         u32 status;
 
-        e_dbg("e1000_set_media_type");
-
         if (hw->mac_type != e1000_82543) {
                 /* tbi_compatibility is only valid on 82543 */
                 hw->tbi_compatibility_en = false;
@@ -415,8 +407,6 @@ s32 e1000_reset_hw(struct e1000_hw *hw)
         u32 led_ctrl;
         s32 ret_val;
 
-        e_dbg("e1000_reset_hw");
-
         /* For 82542 (rev 2.0), disable MWI before issuing a device reset */
         if (hw->mac_type == e1000_82542_rev2_0) {
                 e_dbg("Disabling MWI on 82542 rev 2.0\n");
@@ -566,8 +556,6 @@ s32 e1000_init_hw(struct e1000_hw *hw)
         u32 mta_size;
         u32 ctrl_ext;
 
-        e_dbg("e1000_init_hw");
-
         /* Initialize Identification LED */
         ret_val = e1000_id_led_init(hw);
         if (ret_val) {
@@ -683,8 +671,6 @@ static s32 e1000_adjust_serdes_amplitude(struct e1000_hw *hw)
         u16 eeprom_data;
         s32 ret_val;
 
-        e_dbg("e1000_adjust_serdes_amplitude");
-
         if (hw->media_type != e1000_media_type_internal_serdes)
                 return E1000_SUCCESS;
 
@@ -730,8 +716,6 @@ s32 e1000_setup_link(struct e1000_hw *hw)
         s32 ret_val;
         u16 eeprom_data;
 
-        e_dbg("e1000_setup_link");
-
         /* Read and store word 0x0F of the EEPROM. This word contains bits
          * that determine the hardware's default PAUSE (flow control) mode,
          * a bit that determines whether the HW defaults to enabling or
@@ -848,8 +832,6 @@ static s32 e1000_setup_fiber_serdes_link(struct e1000_hw *hw)
         u32 signal = 0;
         s32 ret_val;
 
-        e_dbg("e1000_setup_fiber_serdes_link");
-
         /* On adapters with a MAC newer than 82544, SWDP 1 will be
          * set when the optics detect a signal. On older adapters, it will be
          * cleared when there is a signal.  This applies to fiber media only.
@@ -1051,8 +1033,6 @@ static s32 e1000_copper_link_preconfig(struct e1000_hw *hw)
         s32 ret_val;
         u16 phy_data;
 
-        e_dbg("e1000_copper_link_preconfig");
-
         ctrl = er32(CTRL);
         /* With 82543, we need to force speed and duplex on the MAC equal to
          * what the PHY speed and duplex configuration is. In addition, we need
@@ -1112,8 +1092,6 @@ static s32 e1000_copper_link_igp_setup(struct e1000_hw *hw)
         s32 ret_val;
         u16 phy_data;
 
-        e_dbg("e1000_copper_link_igp_setup");
-
         if (hw->phy_reset_disable)
                 return E1000_SUCCESS;
 
@@ -1254,8 +1232,6 @@ static s32 e1000_copper_link_mgp_setup(struct e1000_hw *hw)
         s32 ret_val;
         u16 phy_data;
 
-        e_dbg("e1000_copper_link_mgp_setup");
-
         if (hw->phy_reset_disable)
                 return E1000_SUCCESS;
 
@@ -1362,8 +1338,6 @@ static s32 e1000_copper_link_autoneg(struct e1000_hw *hw)
         s32 ret_val;
         u16 phy_data;
 
-        e_dbg("e1000_copper_link_autoneg");
-
         /* Perform some bounds checking on the hw->autoneg_advertised
          * parameter.  If this variable is zero, then set it to the default.
          */
@@ -1432,7 +1406,6 @@ static s32 e1000_copper_link_autoneg(struct e1000_hw *hw)
 static s32 e1000_copper_link_postconfig(struct e1000_hw *hw)
 {
         s32 ret_val;
-        e_dbg("e1000_copper_link_postconfig");
 
         if ((hw->mac_type >= e1000_82544) && (hw->mac_type != e1000_ce4100)) {
                 e1000_config_collision_dist(hw);
@@ -1473,8 +1446,6 @@ static s32 e1000_setup_copper_link(struct e1000_hw *hw)
         u16 i;
         u16 phy_data;
 
-        e_dbg("e1000_setup_copper_link");
-
         /* Check if it is a valid PHY and set PHY mode if necessary. */
         ret_val = e1000_copper_link_preconfig(hw);
         if (ret_val)
@@ -1554,8 +1525,6 @@ s32 e1000_phy_setup_autoneg(struct e1000_hw *hw)
         u16 mii_autoneg_adv_reg;
         u16 mii_1000t_ctrl_reg;
 
-        e_dbg("e1000_phy_setup_autoneg");
-
         /* Read the MII Auto-Neg Advertisement Register (Address 4). */
         ret_val = e1000_read_phy_reg(hw, PHY_AUTONEG_ADV, &mii_autoneg_adv_reg);
         if (ret_val)
@@ -1707,8 +1676,6 @@ static s32 e1000_phy_force_speed_duplex(struct e1000_hw *hw)
         u16 phy_data;
         u16 i;
 
-        e_dbg("e1000_phy_force_speed_duplex");
-
         /* Turn off Flow control if we are forcing speed and duplex. */
         hw->fc = E1000_FC_NONE;
 
@@ -1939,8 +1906,6 @@ void e1000_config_collision_dist(struct e1000_hw *hw)
 {
         u32 tctl, coll_dist;
 
-        e_dbg("e1000_config_collision_dist");
-
         if (hw->mac_type < e1000_82543)
                 coll_dist = E1000_COLLISION_DISTANCE_82542;
         else
@@ -1970,8 +1935,6 @@ static s32 e1000_config_mac_to_phy(struct e1000_hw *hw)
         s32 ret_val;
         u16 phy_data;
 
-        e_dbg("e1000_config_mac_to_phy");
-
         /* 82544 or newer MAC, Auto Speed Detection takes care of
          * MAC speed/duplex configuration.
          */
@@ -2049,8 +2012,6 @@ s32 e1000_force_mac_fc(struct e1000_hw *hw)
 {
         u32 ctrl;
 
-        e_dbg("e1000_force_mac_fc");
-
         /* Get the current configuration of the Device Control Register */
         ctrl = er32(CTRL);
 
@@ -2120,8 +2081,6 @@ static s32 e1000_config_fc_after_link_up(struct e1000_hw *hw)
         u16 speed;
         u16 duplex;
 
-        e_dbg("e1000_config_fc_after_link_up");
-
         /* Check for the case where we have fiber media and auto-neg failed
          * so we had to force link.  In this case, we need to force the
          * configuration of the MAC to match the "fc" parameter.
@@ -2337,8 +2296,6 @@ static s32 e1000_check_for_serdes_link_generic(struct e1000_hw *hw)
         u32 status;
         s32 ret_val = E1000_SUCCESS;
 
-        e_dbg("e1000_check_for_serdes_link_generic");
-
         ctrl = er32(CTRL);
         status = er32(STATUS);
         rxcw = er32(RXCW);
@@ -2449,8 +2406,6 @@ s32 e1000_check_for_link(struct e1000_hw *hw)
         s32 ret_val;
         u16 phy_data;
 
-        e_dbg("e1000_check_for_link");
-
         ctrl = er32(CTRL);
         status = er32(STATUS);
 
@@ -2632,8 +2587,6 @@ s32 e1000_get_speed_and_duplex(struct e1000_hw *hw, u16 *speed, u16 *duplex)
         s32 ret_val;
         u16 phy_data;
 
-        e_dbg("e1000_get_speed_and_duplex");
-
         if (hw->mac_type >= e1000_82543) {
                 status = er32(STATUS);
                 if (status & E1000_STATUS_SPEED_1000) {
@@ -2699,7 +2652,6 @@ static s32 e1000_wait_autoneg(struct e1000_hw *hw)
         u16 i;
         u16 phy_data;
 
-        e_dbg("e1000_wait_autoneg");
         e_dbg("Waiting for Auto-Neg to complete.\n");
 
         /* We will wait for autoneg to complete or 4.5 seconds to expire. */
@@ -2866,8 +2818,6 @@ s32 e1000_read_phy_reg(struct e1000_hw *hw, u32 reg_addr, u16 *phy_data)
         u32 ret_val;
         unsigned long flags;
 
-        e_dbg("e1000_read_phy_reg");
-
         spin_lock_irqsave(&e1000_phy_lock, flags);
 
         if ((hw->phy_type == e1000_phy_igp) &&
@@ -2894,8 +2844,6 @@ static s32 e1000_read_phy_reg_ex(struct e1000_hw *hw, u32 reg_addr,
         u32 mdic = 0;
         const u32 phy_addr = (hw->mac_type == e1000_ce4100) ? hw->phy_addr : 1;
 
-        e_dbg("e1000_read_phy_reg_ex");
-
         if (reg_addr > MAX_PHY_REG_ADDRESS) {
                 e_dbg("PHY Address %d is out of range\n", reg_addr);
                 return -E1000_ERR_PARAM;
@@ -3008,8 +2956,6 @@ s32 e1000_write_phy_reg(struct e1000_hw *hw, u32 reg_addr, u16 phy_data)
         u32 ret_val;
         unsigned long flags;
 
-        e_dbg("e1000_write_phy_reg");
-
         spin_lock_irqsave(&e1000_phy_lock, flags);
 
         if ((hw->phy_type == e1000_phy_igp) &&
@@ -3036,8 +2982,6 @@ static s32 e1000_write_phy_reg_ex(struct e1000_hw *hw, u32 reg_addr,
         u32 mdic = 0;
         const u32 phy_addr = (hw->mac_type == e1000_ce4100) ? hw->phy_addr : 1;
 
-        e_dbg("e1000_write_phy_reg_ex");
-
         if (reg_addr > MAX_PHY_REG_ADDRESS) {
                 e_dbg("PHY Address %d is out of range\n", reg_addr);
                 return -E1000_ERR_PARAM;
@@ -3129,8 +3073,6 @@ s32 e1000_phy_hw_reset(struct e1000_hw *hw)
         u32 ctrl, ctrl_ext;
         u32 led_ctrl;
 
-        e_dbg("e1000_phy_hw_reset");
-
         e_dbg("Resetting Phy...\n");
 
         if (hw->mac_type > e1000_82543) {
@@ -3189,8 +3131,6 @@ s32 e1000_phy_reset(struct e1000_hw *hw)
         s32 ret_val;
         u16 phy_data;
 
-        e_dbg("e1000_phy_reset");
-
         switch (hw->phy_type) {
         case e1000_phy_igp:
                 ret_val = e1000_phy_hw_reset(hw);
@@ -3229,8 +3169,6 @@ static s32 e1000_detect_gig_phy(struct e1000_hw *hw)
         u16 phy_id_high, phy_id_low;
         bool match = false;
 
-        e_dbg("e1000_detect_gig_phy");
-
         if (hw->phy_id != 0)
                 return E1000_SUCCESS;
 
@@ -3301,7 +3239,6 @@ static s32 e1000_detect_gig_phy(struct e1000_hw *hw)
 static s32 e1000_phy_reset_dsp(struct e1000_hw *hw)
 {
         s32 ret_val;
-        e_dbg("e1000_phy_reset_dsp");
 
         do {
                 ret_val = e1000_write_phy_reg(hw, 29, 0x001d);
@@ -3333,8 +3270,6 @@ static s32 e1000_phy_igp_get_info(struct e1000_hw *hw,
         u16 phy_data, min_length, max_length, average;
         e1000_rev_polarity polarity;
 
-        e_dbg("e1000_phy_igp_get_info");
-
         /* The downshift status is checked only once, after link is established,
          * and it stored in the hw->speed_downgraded parameter.
          */
@@ -3414,8 +3349,6 @@ static s32 e1000_phy_m88_get_info(struct e1000_hw *hw,
         u16 phy_data;
         e1000_rev_polarity polarity;
 
-        e_dbg("e1000_phy_m88_get_info");
-
         /* The downshift status is checked only once, after link is established,
          * and it stored in the hw->speed_downgraded parameter.
          */
@@ -3487,8 +3420,6 @@ s32 e1000_phy_get_info(struct e1000_hw *hw, struct e1000_phy_info *phy_info)
         s32 ret_val;
         u16 phy_data;
 
-        e_dbg("e1000_phy_get_info");
-
         phy_info->cable_length = e1000_cable_length_undefined;
         phy_info->extended_10bt_distance = e1000_10bt_ext_dist_enable_undefined;
         phy_info->cable_polarity = e1000_rev_polarity_undefined;
@@ -3527,8 +3458,6 @@ s32 e1000_phy_get_info(struct e1000_hw *hw, struct e1000_phy_info *phy_info)
 
 s32 e1000_validate_mdi_setting(struct e1000_hw *hw)
 {
-        e_dbg("e1000_validate_mdi_settings");
-
         if (!hw->autoneg && (hw->mdix == 0 || hw->mdix == 3)) {
                 e_dbg("Invalid MDI setting detected\n");
                 hw->mdix = 1;
@@ -3551,8 +3480,6 @@ s32 e1000_init_eeprom_params(struct e1000_hw *hw)
         s32 ret_val = E1000_SUCCESS;
         u16 eeprom_size;
 
-        e_dbg("e1000_init_eeprom_params");
-
         switch (hw->mac_type) {
         case e1000_82542_rev2_0:
         case e1000_82542_rev2_1:
@@ -3770,8 +3697,6 @@ static s32 e1000_acquire_eeprom(struct e1000_hw *hw)
         struct e1000_eeprom_info *eeprom = &hw->eeprom;
         u32 eecd, i = 0;
 
-        e_dbg("e1000_acquire_eeprom");
-
         eecd = er32(EECD);
 
         /* Request EEPROM Access */
@@ -3871,8 +3796,6 @@ static void e1000_release_eeprom(struct e1000_hw *hw)
 {
         u32 eecd;
 
-        e_dbg("e1000_release_eeprom");
-
         eecd = er32(EECD);
 
         if (hw->eeprom.type == e1000_eeprom_spi) {
@@ -3920,8 +3843,6 @@ static s32 e1000_spi_eeprom_ready(struct e1000_hw *hw)
         u16 retry_count = 0;
         u8 spi_stat_reg;
 
-        e_dbg("e1000_spi_eeprom_ready");
-
         /* Read "Status Register" repeatedly until the LSB is cleared.  The
          * EEPROM will signal that the command has been completed by clearing
          * bit 0 of the internal status register.  If it's not cleared within
@@ -3974,8 +3895,6 @@ static s32 e1000_do_read_eeprom(struct e1000_hw *hw, u16 offset, u16 words,
         struct e1000_eeprom_info *eeprom = &hw->eeprom;
         u32 i = 0;
 
-        e_dbg("e1000_read_eeprom");
-
         if (hw->mac_type == e1000_ce4100) {
                 GBE_CONFIG_FLASH_READ(GBE_CONFIG_BASE_VIRT, offset, words,
                                       data);
@@ -4076,8 +3995,6 @@ s32 e1000_validate_eeprom_checksum(struct e1000_hw *hw)
         u16 checksum = 0;
         u16 i, eeprom_data;
 
-        e_dbg("e1000_validate_eeprom_checksum");
-
         for (i = 0; i < (EEPROM_CHECKSUM_REG + 1); i++) {
                 if (e1000_read_eeprom(hw, i, 1, &eeprom_data) < 0) {
                         e_dbg("EEPROM Read Error\n");
@@ -4112,8 +4029,6 @@ s32 e1000_update_eeprom_checksum(struct e1000_hw *hw)
         u16 checksum = 0;
         u16 i, eeprom_data;
 
-        e_dbg("e1000_update_eeprom_checksum");
-
         for (i = 0; i < EEPROM_CHECKSUM_REG; i++) {
                 if (e1000_read_eeprom(hw, i, 1, &eeprom_data) < 0) {
                         e_dbg("EEPROM Read Error\n");
@@ -4154,8 +4069,6 @@ static s32 e1000_do_write_eeprom(struct e1000_hw *hw, u16 offset, u16 words,
         struct e1000_eeprom_info *eeprom = &hw->eeprom;
         s32 status = 0;
 
-        e_dbg("e1000_write_eeprom");
-
         if (hw->mac_type == e1000_ce4100) {
                 GBE_CONFIG_FLASH_WRITE(GBE_CONFIG_BASE_VIRT, offset, words,
                                        data);
@@ -4205,8 +4118,6 @@ static s32 e1000_write_eeprom_spi(struct e1000_hw *hw, u16 offset, u16 words,
         struct e1000_eeprom_info *eeprom = &hw->eeprom;
         u16 widx = 0;
 
-        e_dbg("e1000_write_eeprom_spi");
-
         while (widx < words) {
                 u8 write_opcode = EEPROM_WRITE_OPCODE_SPI;
 
@@ -4274,8 +4185,6 @@ static s32 e1000_write_eeprom_microwire(struct e1000_hw *hw, u16 offset,
         u16 words_written = 0;
         u16 i = 0;
 
-        e_dbg("e1000_write_eeprom_microwire");
-
         /* Send the write enable command to the EEPROM (3-bit opcode plus
          * 6/8-bit dummy address beginning with 11).  It's less work to include
          * the 11 of the dummy address as part of the opcode than it is to shift
@@ -4354,8 +4263,6 @@ s32 e1000_read_mac_addr(struct e1000_hw *hw)
         u16 offset;
         u16 eeprom_data, i;
 
-        e_dbg("e1000_read_mac_addr");
-
         for (i = 0; i < NODE_ADDRESS_SIZE; i += 2) {
                 offset = i >> 1;
                 if (e1000_read_eeprom(hw, offset, 1, &eeprom_data) < 0) {
@@ -4394,8 +4301,6 @@ static void e1000_init_rx_addrs(struct e1000_hw *hw)
         u32 i;
         u32 rar_num;
 
-        e_dbg("e1000_init_rx_addrs");
-
         /* Setup the receive address. */
         e_dbg("Programming MAC Address into RAR[0]\n");
 
@@ -4553,8 +4458,6 @@ static s32 e1000_id_led_init(struct e1000_hw *hw)
         u16 eeprom_data, i, temp;
         const u16 led_mask = 0x0F;
 
-        e_dbg("e1000_id_led_init");
-
         if (hw->mac_type < e1000_82540) {
                 /* Nothing to do */
                 return E1000_SUCCESS;
@@ -4626,8 +4529,6 @@ s32 e1000_setup_led(struct e1000_hw *hw)
         u32 ledctl;
         s32 ret_val = E1000_SUCCESS;
 
-        e_dbg("e1000_setup_led");
-
         switch (hw->mac_type) {
         case e1000_82542_rev2_0:
         case e1000_82542_rev2_1:
@@ -4678,8 +4579,6 @@ s32 e1000_cleanup_led(struct e1000_hw *hw)
 {
         s32 ret_val = E1000_SUCCESS;
 
-        e_dbg("e1000_cleanup_led");
-
         switch (hw->mac_type) {
         case e1000_82542_rev2_0:
         case e1000_82542_rev2_1:
@@ -4714,8 +4613,6 @@ s32 e1000_led_on(struct e1000_hw *hw)
 {
         u32 ctrl = er32(CTRL);
 
-        e_dbg("e1000_led_on");
-
         switch (hw->mac_type) {
         case e1000_82542_rev2_0:
         case e1000_82542_rev2_1:
@@ -4760,8 +4657,6 @@ s32 e1000_led_off(struct e1000_hw *hw)
 {
         u32 ctrl = er32(CTRL);
 
-        e_dbg("e1000_led_off");
-
         switch (hw->mac_type) {
         case e1000_82542_rev2_0:
         case e1000_82542_rev2_1:
@@ -4889,8 +4784,6 @@ static void e1000_clear_hw_cntrs(struct e1000_hw *hw)
  */
 void e1000_reset_adaptive(struct e1000_hw *hw)
 {
-        e_dbg("e1000_reset_adaptive");
-
         if (hw->adaptive_ifs) {
                 if (!hw->ifs_params_forced) {
                         hw->current_ifs_val = 0;
@@ -4917,8 +4810,6 @@ void e1000_reset_adaptive(struct e1000_hw *hw)
  */
 void e1000_update_adaptive(struct e1000_hw *hw)
 {
-        e_dbg("e1000_update_adaptive");
-
         if (hw->adaptive_ifs) {
                 if ((hw->collision_delta *hw->ifs_ratio) > hw->tx_packet_delta) {
                         if (hw->tx_packet_delta > MIN_NUM_XMITS) {
@@ -5114,8 +5005,6 @@ static s32 e1000_get_cable_length(struct e1000_hw *hw, u16 *min_length,
         u16 i, phy_data;
         u16 cable_length;
 
-        e_dbg("e1000_get_cable_length");
-
         *min_length = *max_length = 0;
 
         /* Use old method for Phy older than IGP */
@@ -5231,8 +5120,6 @@ static s32 e1000_check_polarity(struct e1000_hw *hw,
         s32 ret_val;
         u16 phy_data;
 
-        e_dbg("e1000_check_polarity");
-
         if (hw->phy_type == e1000_phy_m88) {
                 /* return the Polarity bit in the Status register. */
                 ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_STATUS,
@@ -5299,8 +5186,6 @@ static s32 e1000_check_downshift(struct e1000_hw *hw)
         s32 ret_val;
         u16 phy_data;
 
-        e_dbg("e1000_check_downshift");
-
         if (hw->phy_type == e1000_phy_igp) {
                 ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_LINK_HEALTH,
                                              &phy_data);
@@ -5411,8 +5296,6 @@ static s32 e1000_config_dsp_after_link_change(struct e1000_hw *hw, bool link_up)
         s32 ret_val;
         u16 phy_data, phy_saved_data, speed, duplex, i;
 
-        e_dbg("e1000_config_dsp_after_link_change");
-
         if (hw->phy_type != e1000_phy_igp)
                 return E1000_SUCCESS;
 
@@ -5546,8 +5429,6 @@ static s32 e1000_set_phy_mode(struct e1000_hw *hw)
         s32 ret_val;
         u16 eeprom_data;
 
-        e_dbg("e1000_set_phy_mode");
-
         if ((hw->mac_type == e1000_82545_rev_3) &&
             (hw->media_type == e1000_media_type_copper)) {
                 ret_val =
@@ -5594,7 +5475,6 @@ static s32 e1000_set_d3_lplu_state(struct e1000_hw *hw, bool active)
 {
         s32 ret_val;
         u16 phy_data;
-        e_dbg("e1000_set_d3_lplu_state");
 
         if (hw->phy_type != e1000_phy_igp)
                 return E1000_SUCCESS;
@@ -5699,8 +5579,6 @@ static s32 e1000_set_vco_speed(struct e1000_hw *hw)
         u16 default_page = 0;
         u16 phy_data;
 
-        e_dbg("e1000_set_vco_speed");
-
         switch (hw->mac_type) {
         case e1000_82545_rev_3:
         case e1000_82546_rev_3:
@@ -5872,7 +5750,6 @@ static s32 e1000_polarity_reversal_workaround(struct e1000_hw *hw)
  */
 static s32 e1000_get_auto_rd_done(struct e1000_hw *hw)
 {
-        e_dbg("e1000_get_auto_rd_done");
         msleep(5);
         return E1000_SUCCESS;
 }
@@ -5887,7 +5764,6 @@ static s32 e1000_get_auto_rd_done(struct e1000_hw *hw)
  */
 static s32 e1000_get_phy_cfg_done(struct e1000_hw *hw)
 {
-        e_dbg("e1000_get_phy_cfg_done");
         msleep(10);
         return E1000_SUCCESS;
 }
diff --git a/drivers/net/ethernet/intel/e1000/e1000_main.c b/drivers/net/ethernet/intel/e1000/e1000_main.c
index 46e6544ed1b7..27058dfe418b 100644
--- a/drivers/net/ethernet/intel/e1000/e1000_main.c
+++ b/drivers/net/ethernet/intel/e1000/e1000_main.c
@@ -2682,14 +2682,13 @@ static int e1000_tso(struct e1000_adapter *adapter,
         u32 cmd_length = 0;
         u16 ipcse = 0, tucse, mss;
         u8 ipcss, ipcso, tucss, tucso, hdr_len;
-        int err;
 
         if (skb_is_gso(skb)) {
-                if (skb_header_cloned(skb)) {
-                        err = pskb_expand_head(skb, 0, 0, GFP_ATOMIC);
-                        if (err)
-                                return err;
-                }
+                int err;
+
+                err = skb_cow_head(skb, 0);
+                if (err < 0)
+                        return err;
 
                 hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
                 mss = skb_shinfo(skb)->gso_size;
diff --git a/drivers/net/ethernet/intel/e1000e/netdev.c b/drivers/net/ethernet/intel/e1000e/netdev.c
index dce377b59b2c..d50c91e50528 100644
--- a/drivers/net/ethernet/intel/e1000e/netdev.c
+++ b/drivers/net/ethernet/intel/e1000e/netdev.c
@@ -5100,16 +5100,14 @@ static int e1000_tso(struct e1000_ring *tx_ring, struct sk_buff *skb)
         u32 cmd_length = 0;
         u16 ipcse = 0, mss;
         u8 ipcss, ipcso, tucss, tucso, hdr_len;
+        int err;
 
         if (!skb_is_gso(skb))
                 return 0;
 
-        if (skb_header_cloned(skb)) {
-                int err = pskb_expand_head(skb, 0, 0, GFP_ATOMIC);
-
-                if (err)
-                        return err;
-        }
+        err = skb_cow_head(skb, 0);
+        if (err < 0)
+                return err;
 
         hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
         mss = skb_shinfo(skb)->gso_size;
diff --git a/drivers/net/ethernet/intel/i40evf/i40e_txrx.c b/drivers/net/ethernet/intel/i40evf/i40e_txrx.c
index 53be5f44d015..b9f50f40abe1 100644
--- a/drivers/net/ethernet/intel/i40evf/i40e_txrx.c
+++ b/drivers/net/ethernet/intel/i40evf/i40e_txrx.c
@@ -1114,20 +1114,18 @@ static int i40e_tso(struct i40e_ring *tx_ring, struct sk_buff *skb,
                     u64 *cd_type_cmd_tso_mss, u32 *cd_tunneling)
 {
         u32 cd_cmd, cd_tso_len, cd_mss;
+        struct ipv6hdr *ipv6h;
         struct tcphdr *tcph;
         struct iphdr *iph;
         u32 l4len;
         int err;
-        struct ipv6hdr *ipv6h;
 
         if (!skb_is_gso(skb))
                 return 0;
 
-        if (skb_header_cloned(skb)) {
-                err = pskb_expand_head(skb, 0, 0, GFP_ATOMIC);
-                if (err)
-                        return err;
-        }
+        err = skb_cow_head(skb, 0);
+        if (err < 0)
+                return err;
 
         if (protocol == htons(ETH_P_IP)) {
                 iph = skb->encapsulation ? inner_ip_hdr(skb) : ip_hdr(skb);
diff --git a/drivers/net/ethernet/intel/i40evf/i40evf_main.c b/drivers/net/ethernet/intel/i40evf/i40evf_main.c
index e35e66ffa782..2797548fde0d 100644
--- a/drivers/net/ethernet/intel/i40evf/i40evf_main.c
+++ b/drivers/net/ethernet/intel/i40evf/i40evf_main.c
@@ -1412,6 +1412,14 @@ restart_watchdog:
         schedule_work(&adapter->adminq_task);
 }
 
+/**
+ * i40evf_configure_rss - increment to next available tx queue
+ * @adapter: board private structure
+ * @j: queue counter
+ *
+ * Helper function for RSS programming to increment through available
+ * queus. Returns the next queue value.
+ **/
 static int next_queue(struct i40evf_adapter *adapter, int j)
 {
         j += 1;
@@ -1451,10 +1459,14 @@ static void i40evf_configure_rss(struct i40evf_adapter *adapter)
         /* Populate the LUT with max no. of queues in round robin fashion */
         j = adapter->vsi_res->num_queue_pairs;
         for (i = 0; i <= I40E_VFQF_HLUT_MAX_INDEX; i++) {
-                lut = next_queue(adapter, j);
-                lut |= next_queue(adapter, j) << 8;
-                lut |= next_queue(adapter, j) << 16;
-                lut |= next_queue(adapter, j) << 24;
+                j = next_queue(adapter, j);
+                lut = j;
+                j = next_queue(adapter, j);
+                lut |= j << 8;
+                j = next_queue(adapter, j);
+                lut |= j << 16;
+                j = next_queue(adapter, j);
+                lut |= j << 24;
                 wr32(hw, I40E_VFQF_HLUT(i), lut);
         }
         i40e_flush(hw);
diff --git a/drivers/net/ethernet/intel/igb/igb.h b/drivers/net/ethernet/intel/igb/igb.h
index 7fbe1e925143..27130065d92a 100644
--- a/drivers/net/ethernet/intel/igb/igb.h
+++ b/drivers/net/ethernet/intel/igb/igb.h
@@ -241,7 +241,6 @@ struct igb_ring {
                 struct igb_tx_buffer *tx_buffer_info;
                 struct igb_rx_buffer *rx_buffer_info;
         };
-        unsigned long last_rx_timestamp;
         void *desc;                     /* descriptor ring memory */
         unsigned long flags;            /* ring specific flags */
         void __iomem *tail;             /* pointer to ring tail register */
@@ -437,6 +436,7 @@ struct igb_adapter {
         struct hwtstamp_config tstamp_config;
         unsigned long ptp_tx_start;
         unsigned long last_rx_ptp_check;
+        unsigned long last_rx_timestamp;
         spinlock_t tmreg_lock;
         struct cyclecounter cc;
         struct timecounter tc;
@@ -533,20 +533,6 @@ void igb_ptp_rx_hang(struct igb_adapter *adapter);
 void igb_ptp_rx_rgtstamp(struct igb_q_vector *q_vector, struct sk_buff *skb);
 void igb_ptp_rx_pktstamp(struct igb_q_vector *q_vector, unsigned char *va,
                          struct sk_buff *skb);
-static inline void igb_ptp_rx_hwtstamp(struct igb_ring *rx_ring,
-                                       union e1000_adv_rx_desc *rx_desc,
-                                       struct sk_buff *skb)
-{
-        if (igb_test_staterr(rx_desc, E1000_RXDADV_STAT_TS) &&
-            !igb_test_staterr(rx_desc, E1000_RXDADV_STAT_TSIP))
-                igb_ptp_rx_rgtstamp(rx_ring->q_vector, skb);
-
-        /* Update the last_rx_timestamp timer in order to enable watchdog check
-         * for error case of latched timestamp on a dropped packet.
-         */
-        rx_ring->last_rx_timestamp = jiffies;
-}
-
 int igb_ptp_set_ts_config(struct net_device *netdev, struct ifreq *ifr);
 int igb_ptp_get_ts_config(struct net_device *netdev, struct ifreq *ifr);
 #ifdef CONFIG_IGB_HWMON
diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c
index 30198185d19a..fb98d4602f9d 100644
--- a/drivers/net/ethernet/intel/igb/igb_main.c
+++ b/drivers/net/ethernet/intel/igb/igb_main.c
@@ -4605,6 +4605,7 @@ static int igb_tso(struct igb_ring *tx_ring,
         struct sk_buff *skb = first->skb;
         u32 vlan_macip_lens, type_tucmd;
         u32 mss_l4len_idx, l4len;
+        int err;
 
         if (skb->ip_summed != CHECKSUM_PARTIAL)
                 return 0;
@@ -4612,11 +4613,9 @@ static int igb_tso(struct igb_ring *tx_ring,
         if (!skb_is_gso(skb))
                 return 0;
 
-        if (skb_header_cloned(skb)) {
-                int err = pskb_expand_head(skb, 0, 0, GFP_ATOMIC);
-                if (err)
-                        return err;
-        }
+        err = skb_cow_head(skb, 0);
+        if (err < 0)
+                return err;
 
         /* ADV DTYP TUCMD MKRLOC/ISCSIHEDLEN */
         type_tucmd = E1000_ADVTXD_TUCMD_L4T_TCP;
@@ -6955,7 +6954,9 @@ static void igb_process_skb_fields(struct igb_ring *rx_ring,
 
         igb_rx_checksum(rx_ring, rx_desc, skb);
 
-        igb_ptp_rx_hwtstamp(rx_ring, rx_desc, skb);
+        if (igb_test_staterr(rx_desc, E1000_RXDADV_STAT_TS) &&
+            !igb_test_staterr(rx_desc, E1000_RXDADV_STAT_TSIP))
+                igb_ptp_rx_rgtstamp(rx_ring->q_vector, skb);
 
         if ((dev->features & NETIF_F_HW_VLAN_CTAG_RX) &&
             igb_test_staterr(rx_desc, E1000_RXD_STAT_VP)) {
diff --git a/drivers/net/ethernet/intel/igb/igb_ptp.c b/drivers/net/ethernet/intel/igb/igb_ptp.c
index 2cca8fd5e574..9209d652e1c9 100644
--- a/drivers/net/ethernet/intel/igb/igb_ptp.c
+++ b/drivers/net/ethernet/intel/igb/igb_ptp.c
@@ -427,10 +427,8 @@ static void igb_ptp_overflow_check(struct work_struct *work)
 void igb_ptp_rx_hang(struct igb_adapter *adapter)
 {
         struct e1000_hw *hw = &adapter->hw;
-        struct igb_ring *rx_ring;
         u32 tsyncrxctl = rd32(E1000_TSYNCRXCTL);
         unsigned long rx_event;
-        int n;
 
         if (hw->mac.type != e1000_82576)
                 return;
@@ -445,11 +443,8 @@ void igb_ptp_rx_hang(struct igb_adapter *adapter)
 
         /* Determine the most recent watchdog or rx_timestamp event */
         rx_event = adapter->last_rx_ptp_check;
-        for (n = 0; n < adapter->num_rx_queues; n++) {
-                rx_ring = adapter->rx_ring[n];
-                if (time_after(rx_ring->last_rx_timestamp, rx_event))
-                        rx_event = rx_ring->last_rx_timestamp;
-        }
+        if (time_after(adapter->last_rx_timestamp, rx_event))
+                rx_event = adapter->last_rx_timestamp;
 
         /* Only need to read the high RXSTMP register to clear the lock */
         if (time_is_before_jiffies(rx_event + 5 * HZ)) {
@@ -540,6 +535,11 @@ void igb_ptp_rx_rgtstamp(struct igb_q_vector *q_vector,
         regval |= (u64)rd32(E1000_RXSTMPH) << 32;
 
         igb_ptp_systim_to_hwtstamp(adapter, skb_hwtstamps(skb), regval);
+
+        /* Update the last_rx_timestamp timer in order to enable watchdog check
+         * for error case of latched timestamp on a dropped packet.
+         */
+        adapter->last_rx_timestamp = jiffies;
 }
 
 /**
diff --git a/drivers/net/ethernet/intel/igbvf/netdev.c b/drivers/net/ethernet/intel/igbvf/netdev.c
index b7ab03a2f28f..d608599e123a 100644
--- a/drivers/net/ethernet/intel/igbvf/netdev.c
+++ b/drivers/net/ethernet/intel/igbvf/netdev.c
@@ -1910,20 +1910,18 @@ static int igbvf_tso(struct igbvf_adapter *adapter,
                      struct sk_buff *skb, u32 tx_flags, u8 *hdr_len)
 {
         struct e1000_adv_tx_context_desc *context_desc;
-        unsigned int i;
-        int err;
         struct igbvf_buffer *buffer_info;
         u32 info = 0, tu_cmd = 0;
         u32 mss_l4len_idx, l4len;
+        unsigned int i;
+        int err;
+
         *hdr_len = 0;
 
-        if (skb_header_cloned(skb)) {
-                err = pskb_expand_head(skb, 0, 0, GFP_ATOMIC);
-                if (err) {
-                        dev_err(&adapter->pdev->dev,
-                                "igbvf_tso returning an error\n");
-                        return err;
-                }
+        err = skb_cow_head(skb, 0);
+        if (err < 0) {
+                dev_err(&adapter->pdev->dev, "igbvf_tso returning an error\n");
+                return err;
         }
 
         l4len = tcp_hdrlen(skb);
diff --git a/drivers/net/ethernet/intel/ixgb/ixgb_main.c b/drivers/net/ethernet/intel/ixgb/ixgb_main.c
index f42c201f727f..60801273915c 100644
--- a/drivers/net/ethernet/intel/ixgb/ixgb_main.c
+++ b/drivers/net/ethernet/intel/ixgb/ixgb_main.c
@@ -1220,17 +1220,15 @@ ixgb_tso(struct ixgb_adapter *adapter, struct sk_buff *skb)
         unsigned int i;
         u8 ipcss, ipcso, tucss, tucso, hdr_len;
         u16 ipcse, tucse, mss;
-        int err;
 
         if (likely(skb_is_gso(skb))) {
                 struct ixgb_buffer *buffer_info;
                 struct iphdr *iph;
+                int err;
 
-                if (skb_header_cloned(skb)) {
-                        err = pskb_expand_head(skb, 0, 0, GFP_ATOMIC);
-                        if (err)
-                                return err;
-                }
+                err = skb_cow_head(skb, 0);
+                if (err < 0)
+                        return err;
 
                 hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
                 mss = skb_shinfo(skb)->gso_size;
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe.h b/drivers/net/ethernet/intel/ixgbe/ixgbe.h
index 55c53a1cbb62..1a12c1dd7a27 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe.h
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe.h
@@ -811,6 +811,7 @@ enum ixgbe_state_t {
         __IXGBE_DISABLED,
         __IXGBE_REMOVING,
         __IXGBE_SERVICE_SCHED,
+        __IXGBE_SERVICE_INITED,
         __IXGBE_IN_SFP_INIT,
         __IXGBE_PTP_RUNNING,
         __IXGBE_PTP_TX_IN_PROGRESS,
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index 8436c651b735..c4c526b7f99f 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -297,7 +297,8 @@ static void ixgbe_remove_adapter(struct ixgbe_hw *hw)
                 return;
         hw->hw_addr = NULL;
         e_dev_err("Adapter removed\n");
-        ixgbe_service_event_schedule(adapter);
+        if (test_bit(__IXGBE_SERVICE_INITED, &adapter->state))
+                ixgbe_service_event_schedule(adapter);
 }
 
 void ixgbe_check_remove(struct ixgbe_hw *hw, u32 reg)
@@ -6509,6 +6510,7 @@ static int ixgbe_tso(struct ixgbe_ring *tx_ring,
         struct sk_buff *skb = first->skb;
         u32 vlan_macip_lens, type_tucmd;
         u32 mss_l4len_idx, l4len;
+        int err;
 
         if (skb->ip_summed != CHECKSUM_PARTIAL)
                 return 0;
@@ -6516,11 +6518,9 @@ static int ixgbe_tso(struct ixgbe_ring *tx_ring,
         if (!skb_is_gso(skb))
                 return 0;
 
-        if (skb_header_cloned(skb)) {
-                int err = pskb_expand_head(skb, 0, 0, GFP_ATOMIC);
-                if (err)
-                        return err;
-        }
+        err = skb_cow_head(skb, 0);
+        if (err < 0)
+                return err;
 
         /* ADV DTYP TUCMD MKRLOC/ISCSIHEDLEN */
         type_tucmd = IXGBE_ADVTXD_TUCMD_L4T_TCP;
@@ -7077,8 +7077,8 @@ netdev_tx_t ixgbe_xmit_frame_ring(struct sk_buff *skb,
                                         IXGBE_TX_FLAGS_VLAN_PRIO_SHIFT;
                 if (tx_flags & IXGBE_TX_FLAGS_SW_VLAN) {
                         struct vlan_ethhdr *vhdr;
-                        if (skb_header_cloned(skb) &&
-                            pskb_expand_head(skb, 0, 0, GFP_ATOMIC))
+
+                        if (skb_cow_head(skb, 0))
                                 goto out_drop;
                         vhdr = (struct vlan_ethhdr *)skb->data;
                         vhdr->h_vlan_TCI = htons(tx_flags >>
@@ -8023,6 +8023,10 @@ static int ixgbe_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
         /* EEPROM */
         memcpy(&hw->eeprom.ops, ii->eeprom_ops, sizeof(hw->eeprom.ops));
         eec = IXGBE_READ_REG(hw, IXGBE_EEC);
+        if (ixgbe_removed(hw->hw_addr)) {
+                err = -EIO;
+                goto err_ioremap;
+        }
         /* If EEPROM is valid (bit 8 = 1), use default otherwise use bit bang */
         if (!(eec & (1 << 8)))
                 hw->eeprom.ops.read = &ixgbe_read_eeprom_bit_bang_generic;
@@ -8185,7 +8189,12 @@ skip_sriov:
         setup_timer(&adapter->service_timer, &ixgbe_service_timer,
                     (unsigned long) adapter);
 
+        if (ixgbe_removed(hw->hw_addr)) {
+                err = -EIO;
+                goto err_sw_init;
+        }
         INIT_WORK(&adapter->service_task, ixgbe_service_task);
+        set_bit(__IXGBE_SERVICE_INITED, &adapter->state);
         clear_bit(__IXGBE_SERVICE_SCHED, &adapter->state);
 
         err = ixgbe_init_interrupt_scheme(adapter);
@@ -8494,6 +8503,9 @@ static pci_ers_result_t ixgbe_io_error_detected(struct pci_dev *pdev,
 
 skip_bad_vf_detection:
 #endif /* CONFIG_PCI_IOV */
+        if (!test_bit(__IXGBE_SERVICE_INITED, &adapter->state))
+                return PCI_ERS_RESULT_DISCONNECT;
+
         rtnl_lock();
         netif_device_detach(netdev);
 
diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf.h b/drivers/net/ethernet/intel/ixgbevf/ixgbevf.h
index e7e7d695816b..a0a1de9ce238 100644
--- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf.h
+++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf.h
@@ -421,6 +421,7 @@ enum ixbgevf_state_t {
         __IXGBEVF_DOWN,
         __IXGBEVF_DISABLED,
         __IXGBEVF_REMOVING,
+        __IXGBEVF_WORK_INIT,
 };
 
 struct ixgbevf_cb {
diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
index 4ba139b2d25a..d0799e8e31e4 100644
--- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
+++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
@@ -107,7 +107,8 @@ static void ixgbevf_remove_adapter(struct ixgbe_hw *hw)
                 return;
         hw->hw_addr = NULL;
         dev_err(&adapter->pdev->dev, "Adapter removed\n");
-        schedule_work(&adapter->watchdog_task);
+        if (test_bit(__IXGBEVF_WORK_INIT, &adapter->state))
+                schedule_work(&adapter->watchdog_task);
 }
 
 static void ixgbevf_check_remove(struct ixgbe_hw *hw, u32 reg)
@@ -2838,6 +2839,7 @@ static int ixgbevf_tso(struct ixgbevf_ring *tx_ring,
         struct sk_buff *skb = first->skb;
         u32 vlan_macip_lens, type_tucmd;
         u32 mss_l4len_idx, l4len;
+        int err;
 
         if (skb->ip_summed != CHECKSUM_PARTIAL)
                 return 0;
@@ -2845,11 +2847,9 @@ static int ixgbevf_tso(struct ixgbevf_ring *tx_ring,
         if (!skb_is_gso(skb))
                 return 0;
 
-        if (skb_header_cloned(skb)) {
-                int err = pskb_expand_head(skb, 0, 0, GFP_ATOMIC);
-                if (err)
-                        return err;
-        }
+        err = skb_cow_head(skb, 0);
+        if (err < 0)
+                return err;
 
         /* ADV DTYP TUCMD MKRLOC/ISCSIHEDLEN */
         type_tucmd = IXGBE_ADVTXD_TUCMD_L4T_TCP;
@@ -3573,8 +3573,13 @@ static int ixgbevf_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
         adapter->watchdog_timer.function = ixgbevf_watchdog;
         adapter->watchdog_timer.data = (unsigned long)adapter;
 
+        if (IXGBE_REMOVED(hw->hw_addr)) {
+                err = -EIO;
+                goto err_sw_init;
+        }
         INIT_WORK(&adapter->reset_task, ixgbevf_reset_task);
         INIT_WORK(&adapter->watchdog_task, ixgbevf_watchdog_task);
+        set_bit(__IXGBEVF_WORK_INIT, &adapter->state);
 
         err = ixgbevf_init_interrupt_scheme(adapter);
         if (err)
@@ -3667,6 +3672,9 @@ static pci_ers_result_t ixgbevf_io_error_detected(struct pci_dev *pdev,
         struct net_device *netdev = pci_get_drvdata(pdev);
         struct ixgbevf_adapter *adapter = netdev_priv(netdev);
 
+        if (!test_bit(__IXGBEVF_WORK_INIT, &adapter->state))
+                return PCI_ERS_RESULT_DISCONNECT;
+
         rtnl_lock();
         netif_device_detach(netdev);
 
diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c
index d04b1c3c9b85..b248bcbdae63 100644
--- a/drivers/net/ethernet/marvell/mvneta.c
+++ b/drivers/net/ethernet/marvell/mvneta.c
@@ -89,9 +89,8 @@
 #define      MVNETA_TX_IN_PRGRS                  BIT(1)
 #define      MVNETA_TX_FIFO_EMPTY                BIT(8)
 #define MVNETA_RX_MIN_FRAME_SIZE                 0x247c
-#define MVNETA_SERDES_CFG                        0x24A0
+#define MVNETA_SGMII_SERDES_CFG                  0x24A0
 #define      MVNETA_SGMII_SERDES_PROTO           0x0cc7
-#define      MVNETA_RGMII_SERDES_PROTO           0x0667
 #define MVNETA_TYPE_PRIO                         0x24bc
 #define      MVNETA_FORCE_UNI                    BIT(21)
 #define MVNETA_TXQ_CMD_1                         0x24e4
@@ -712,6 +711,35 @@ static void mvneta_rxq_bm_disable(struct mvneta_port *pp,
         mvreg_write(pp, MVNETA_RXQ_CONFIG_REG(rxq->id), val);
 }
 
+
+
+/* Sets the RGMII Enable bit (RGMIIEn) in port MAC control register */
+static void mvneta_gmac_rgmii_set(struct mvneta_port *pp, int enable)
+{
+        u32  val;
+
+        val = mvreg_read(pp, MVNETA_GMAC_CTRL_2);
+
+        if (enable)
+                val |= MVNETA_GMAC2_PORT_RGMII;
+        else
+                val &= ~MVNETA_GMAC2_PORT_RGMII;
+
+        mvreg_write(pp, MVNETA_GMAC_CTRL_2, val);
+}
+
+/* Config SGMII port */
+static void mvneta_port_sgmii_config(struct mvneta_port *pp)
+{
+        u32 val;
+
+        val = mvreg_read(pp, MVNETA_GMAC_CTRL_2);
+        val |= MVNETA_GMAC2_PCS_ENABLE;
+        mvreg_write(pp, MVNETA_GMAC_CTRL_2, val);
+
+        mvreg_write(pp, MVNETA_SGMII_SERDES_CFG, MVNETA_SGMII_SERDES_PROTO);
+}
+
 /* Start the Ethernet port RX and TX activity */
 static void mvneta_port_up(struct mvneta_port *pp)
 {
@@ -2729,15 +2757,12 @@ static void mvneta_port_power_up(struct mvneta_port *pp, int phy_mode)
         mvreg_write(pp, MVNETA_UNIT_INTR_CAUSE, 0);
 
         if (phy_mode == PHY_INTERFACE_MODE_SGMII)
-                mvreg_write(pp, MVNETA_SERDES_CFG, MVNETA_SGMII_SERDES_PROTO);
-        else
-                mvreg_write(pp, MVNETA_SERDES_CFG, MVNETA_RGMII_SERDES_PROTO);
+                mvneta_port_sgmii_config(pp);
 
-        val = mvreg_read(pp, MVNETA_GMAC_CTRL_2);
-
-        val |= MVNETA_GMAC2_PCS_ENABLE | MVNETA_GMAC2_PORT_RGMII;
+        mvneta_gmac_rgmii_set(pp, 1);
 
         /* Cancel Port Reset */
+        val = mvreg_read(pp, MVNETA_GMAC_CTRL_2);
         val &= ~MVNETA_GMAC2_PORT_RESET;
         mvreg_write(pp, MVNETA_GMAC_CTRL_2, val);
 
diff --git a/drivers/net/ethernet/mellanox/mlx4/main.c b/drivers/net/ethernet/mellanox/mlx4/main.c
index f0ae95f66ceb..cef267e24f9c 100644
--- a/drivers/net/ethernet/mellanox/mlx4/main.c
+++ b/drivers/net/ethernet/mellanox/mlx4/main.c
@@ -2301,13 +2301,8 @@ static int __mlx4_init_one(struct pci_dev *pdev, int pci_dev_data)
         /* Allow large DMA segments, up to the firmware limit of 1 GB */
         dma_set_max_seg_size(&pdev->dev, 1024 * 1024 * 1024);
 
-        priv = kzalloc(sizeof(*priv), GFP_KERNEL);
-        if (!priv) {
-                err = -ENOMEM;
-                goto err_release_regions;
-        }
-
-        dev       = &priv->dev;
+        dev       = pci_get_drvdata(pdev);
+        priv      = mlx4_priv(dev);
         dev->pdev = pdev;
         INIT_LIST_HEAD(&priv->ctx_list);
         spin_lock_init(&priv->ctx_lock);
@@ -2374,10 +2369,10 @@ static int __mlx4_init_one(struct pci_dev *pdev, int pci_dev_data)
                         } else {
                                 atomic_inc(&pf_loading);
                                 err = pci_enable_sriov(pdev, total_vfs);
-                                atomic_dec(&pf_loading);
                                 if (err) {
                                         mlx4_err(dev, "Failed to enable SR-IOV, continuing without SR-IOV (err = %d).\n",
                                                  err);
+                                        atomic_dec(&pf_loading);
                                         err = 0;
                                 } else {
                                         mlx4_warn(dev, "Running in master mode\n");
@@ -2535,8 +2530,10 @@ slave_start:
         mlx4_sense_init(dev);
         mlx4_start_sense(dev);
 
-        priv->pci_dev_data = pci_dev_data;
-        pci_set_drvdata(pdev, dev);
+        priv->removed = 0;
+
+        if (mlx4_is_master(dev) && dev->num_vfs)
+                atomic_dec(&pf_loading);
 
         return 0;
 
@@ -2588,6 +2585,9 @@ err_rel_own:
         if (!mlx4_is_slave(dev))
                 mlx4_free_ownership(dev);
 
+        if (mlx4_is_master(dev) && dev->num_vfs)
+                atomic_dec(&pf_loading);
+
         kfree(priv->dev.dev_vfs);
 
 err_free_dev:
@@ -2604,85 +2604,110 @@ err_disable_pdev:
 
 static int mlx4_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
 {
+        struct mlx4_priv *priv;
+        struct mlx4_dev *dev;
+
         printk_once(KERN_INFO "%s", mlx4_version);
 
+        priv = kzalloc(sizeof(*priv), GFP_KERNEL);
+        if (!priv)
+                return -ENOMEM;
+
+        dev       = &priv->dev;
+        pci_set_drvdata(pdev, dev);
+        priv->pci_dev_data = id->driver_data;
+
         return __mlx4_init_one(pdev, id->driver_data);
 }
 
-static void mlx4_remove_one(struct pci_dev *pdev)
+static void __mlx4_remove_one(struct pci_dev *pdev)
 {
         struct mlx4_dev  *dev  = pci_get_drvdata(pdev);
         struct mlx4_priv *priv = mlx4_priv(dev);
+        int               pci_dev_data;
         int p;
 
-        if (dev) {
-                /* in SRIOV it is not allowed to unload the pf's
-                 * driver while there are alive vf's */
-                if (mlx4_is_master(dev)) {
-                        if (mlx4_how_many_lives_vf(dev))
-                                printk(KERN_ERR "Removing PF when there are assigned VF's !!!\n");
-                }
-                mlx4_stop_sense(dev);
-                mlx4_unregister_device(dev);
+        if (priv->removed)
+                return;
 
-                for (p = 1; p <= dev->caps.num_ports; p++) {
-                        mlx4_cleanup_port_info(&priv->port[p]);
-                        mlx4_CLOSE_PORT(dev, p);
-                }
+        pci_dev_data = priv->pci_dev_data;
 
-                if (mlx4_is_master(dev))
-                        mlx4_free_resource_tracker(dev,
-                                                   RES_TR_FREE_SLAVES_ONLY);
-
-                mlx4_cleanup_counters_table(dev);
-                mlx4_cleanup_qp_table(dev);
-                mlx4_cleanup_srq_table(dev);
-                mlx4_cleanup_cq_table(dev);
-                mlx4_cmd_use_polling(dev);
-                mlx4_cleanup_eq_table(dev);
-                mlx4_cleanup_mcg_table(dev);
-                mlx4_cleanup_mr_table(dev);
-                mlx4_cleanup_xrcd_table(dev);
-                mlx4_cleanup_pd_table(dev);
+        /* in SRIOV it is not allowed to unload the pf's
+         * driver while there are alive vf's */
+        if (mlx4_is_master(dev) && mlx4_how_many_lives_vf(dev))
+                printk(KERN_ERR "Removing PF when there are assigned VF's !!!\n");
+        mlx4_stop_sense(dev);
+        mlx4_unregister_device(dev);
 
-                if (mlx4_is_master(dev))
-                        mlx4_free_resource_tracker(dev,
-                                                   RES_TR_FREE_STRUCTS_ONLY);
-
-                iounmap(priv->kar);
-                mlx4_uar_free(dev, &priv->driver_uar);
-                mlx4_cleanup_uar_table(dev);
-                if (!mlx4_is_slave(dev))
-                        mlx4_clear_steering(dev);
-                mlx4_free_eq_table(dev);
-                if (mlx4_is_master(dev))
-                        mlx4_multi_func_cleanup(dev);
-                mlx4_close_hca(dev);
-                if (mlx4_is_slave(dev))
-                        mlx4_multi_func_cleanup(dev);
-                mlx4_cmd_cleanup(dev);
-
-                if (dev->flags & MLX4_FLAG_MSI_X)
-                        pci_disable_msix(pdev);
-                if (dev->flags & MLX4_FLAG_SRIOV) {
-                        mlx4_warn(dev, "Disabling SR-IOV\n");
-                        pci_disable_sriov(pdev);
-                }
+        for (p = 1; p <= dev->caps.num_ports; p++) {
+                mlx4_cleanup_port_info(&priv->port[p]);
+                mlx4_CLOSE_PORT(dev, p);
+        }
 
-                if (!mlx4_is_slave(dev))
-                        mlx4_free_ownership(dev);
+        if (mlx4_is_master(dev))
+                mlx4_free_resource_tracker(dev,
+                                           RES_TR_FREE_SLAVES_ONLY);
 
-                kfree(dev->caps.qp0_tunnel);
-                kfree(dev->caps.qp0_proxy);
-                kfree(dev->caps.qp1_tunnel);
-                kfree(dev->caps.qp1_proxy);
-                kfree(dev->dev_vfs);
+        mlx4_cleanup_counters_table(dev);
+        mlx4_cleanup_qp_table(dev);
+        mlx4_cleanup_srq_table(dev);
+        mlx4_cleanup_cq_table(dev);
+        mlx4_cmd_use_polling(dev);
+        mlx4_cleanup_eq_table(dev);
+        mlx4_cleanup_mcg_table(dev);
+        mlx4_cleanup_mr_table(dev);
+        mlx4_cleanup_xrcd_table(dev);
+        mlx4_cleanup_pd_table(dev);
 
-                kfree(priv);
-                pci_release_regions(pdev);
-                pci_disable_device(pdev);
-                pci_set_drvdata(pdev, NULL);
+        if (mlx4_is_master(dev))
+                mlx4_free_resource_tracker(dev,
+                                           RES_TR_FREE_STRUCTS_ONLY);
+
+        iounmap(priv->kar);
+        mlx4_uar_free(dev, &priv->driver_uar);
+        mlx4_cleanup_uar_table(dev);
+        if (!mlx4_is_slave(dev))
+                mlx4_clear_steering(dev);
+        mlx4_free_eq_table(dev);
+        if (mlx4_is_master(dev))
+                mlx4_multi_func_cleanup(dev);
+        mlx4_close_hca(dev);
+        if (mlx4_is_slave(dev))
+                mlx4_multi_func_cleanup(dev);
+        mlx4_cmd_cleanup(dev);
+
+        if (dev->flags & MLX4_FLAG_MSI_X)
+                pci_disable_msix(pdev);
+        if (dev->flags & MLX4_FLAG_SRIOV) {
+                mlx4_warn(dev, "Disabling SR-IOV\n");
+                pci_disable_sriov(pdev);
+                dev->num_vfs = 0;
         }
+
+        if (!mlx4_is_slave(dev))
+                mlx4_free_ownership(dev);
+
+        kfree(dev->caps.qp0_tunnel);
+        kfree(dev->caps.qp0_proxy);
+        kfree(dev->caps.qp1_tunnel);
+        kfree(dev->caps.qp1_proxy);
+        kfree(dev->dev_vfs);
+
+        pci_release_regions(pdev);
+        pci_disable_device(pdev);
+        memset(priv, 0, sizeof(*priv));
+        priv->pci_dev_data = pci_dev_data;
+        priv->removed = 1;
+}
+
+static void mlx4_remove_one(struct pci_dev *pdev)
+{
+        struct mlx4_dev  *dev  = pci_get_drvdata(pdev);
+        struct mlx4_priv *priv = mlx4_priv(dev);
+
+        __mlx4_remove_one(pdev);
+        kfree(priv);
+        pci_set_drvdata(pdev, NULL);
 }
 
 int mlx4_restart_one(struct pci_dev *pdev)
@@ -2692,7 +2717,7 @@ int mlx4_restart_one(struct pci_dev *pdev)
         int               pci_dev_data;
 
         pci_dev_data = priv->pci_dev_data;
-        mlx4_remove_one(pdev);
+        __mlx4_remove_one(pdev);
         return __mlx4_init_one(pdev, pci_dev_data);
 }
 
@@ -2747,7 +2772,7 @@ MODULE_DEVICE_TABLE(pci, mlx4_pci_table);
 static pci_ers_result_t mlx4_pci_err_detected(struct pci_dev *pdev,
                                               pci_channel_state_t state)
 {
-        mlx4_remove_one(pdev);
+        __mlx4_remove_one(pdev);
 
         return state == pci_channel_io_perm_failure ?
                 PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_NEED_RESET;
@@ -2755,11 +2780,11 @@ static pci_ers_result_t mlx4_pci_err_detected(struct pci_dev *pdev,
 
 static pci_ers_result_t mlx4_pci_slot_reset(struct pci_dev *pdev)
 {
-        const struct pci_device_id *id;
-        int ret;
+        struct mlx4_dev  *dev  = pci_get_drvdata(pdev);
+        struct mlx4_priv *priv = mlx4_priv(dev);
+        int               ret;
 
-        id = pci_match_id(mlx4_pci_table, pdev);
-        ret = __mlx4_init_one(pdev, id->driver_data);
+        ret = __mlx4_init_one(pdev, priv->pci_dev_data);
 
         return ret ? PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_RECOVERED;
 }
diff --git a/drivers/net/ethernet/mellanox/mlx4/mlx4.h b/drivers/net/ethernet/mellanox/mlx4/mlx4.h
index cf8be41abb36..f9c465101963 100644
--- a/drivers/net/ethernet/mellanox/mlx4/mlx4.h
+++ b/drivers/net/ethernet/mellanox/mlx4/mlx4.h
@@ -800,6 +800,7 @@ struct mlx4_priv {
         spinlock_t              ctx_lock;
 
         int                     pci_dev_data;
+        int                     removed;
 
         struct list_head        pgdir_list;
         struct mutex            pgdir_mutex;
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c
index b48737dcd3c5..ba20c721ee97 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c
@@ -2139,8 +2139,6 @@ static int qlcnic_83xx_get_nic_configuration(struct qlcnic_adapter *adapter)
         ahw->max_mac_filters = nic_info.max_mac_filters;
         ahw->max_mtu = nic_info.max_mtu;
 
-        adapter->max_tx_rings = ahw->max_tx_ques;
-        adapter->max_sds_rings = ahw->max_rx_ques;
         /* eSwitch capability indicates vNIC mode.
          * vNIC and SRIOV are mutually exclusive operational modes.
          * If SR-IOV capability is detected, SR-IOV physical function
@@ -2161,6 +2159,7 @@ static int qlcnic_83xx_get_nic_configuration(struct qlcnic_adapter *adapter)
 int qlcnic_83xx_configure_opmode(struct qlcnic_adapter *adapter)
 {
         struct qlcnic_hardware_context *ahw = adapter->ahw;
+        u16 max_sds_rings, max_tx_rings;
         int ret;
 
         ret = qlcnic_83xx_get_nic_configuration(adapter);
@@ -2173,18 +2172,21 @@ int qlcnic_83xx_configure_opmode(struct qlcnic_adapter *adapter)
                 if (qlcnic_83xx_config_vnic_opmode(adapter))
                         return -EIO;
 
-                adapter->max_sds_rings = QLCNIC_MAX_VNIC_SDS_RINGS;
-                adapter->max_tx_rings = QLCNIC_MAX_VNIC_TX_RINGS;
+                max_sds_rings = QLCNIC_MAX_VNIC_SDS_RINGS;
+                max_tx_rings = QLCNIC_MAX_VNIC_TX_RINGS;
         } else if (ret == QLC_83XX_DEFAULT_OPMODE) {
                 ahw->nic_mode = QLCNIC_DEFAULT_MODE;
                 adapter->nic_ops->init_driver = qlcnic_83xx_init_default_driver;
                 ahw->idc.state_entry = qlcnic_83xx_idc_ready_state_entry;
-                adapter->max_sds_rings = QLCNIC_MAX_SDS_RINGS;
-                adapter->max_tx_rings = QLCNIC_MAX_TX_RINGS;
+                max_sds_rings = QLCNIC_MAX_SDS_RINGS;
+                max_tx_rings = QLCNIC_MAX_TX_RINGS;
         } else {
                 return -EIO;
         }
 
+        adapter->max_sds_rings = min(ahw->max_rx_ques, max_sds_rings);
+        adapter->max_tx_rings = min(ahw->max_tx_ques, max_tx_rings);
+
         return 0;
 }
 
@@ -2348,15 +2350,16 @@ int qlcnic_83xx_init(struct qlcnic_adapter *adapter, int pci_using_dac)
                 goto disable_intr;
         }
 
+        INIT_DELAYED_WORK(&adapter->idc_aen_work, qlcnic_83xx_idc_aen_work);
+
         err = qlcnic_83xx_setup_mbx_intr(adapter);
         if (err)
                 goto disable_mbx_intr;
 
         qlcnic_83xx_clear_function_resources(adapter);
-
-        INIT_DELAYED_WORK(&adapter->idc_aen_work, qlcnic_83xx_idc_aen_work);
-
+        qlcnic_dcb_enable(adapter->dcb);
         qlcnic_83xx_initialize_nic(adapter, 1);
+        qlcnic_dcb_get_info(adapter->dcb);
 
         /* Configure default, SR-IOV or Virtual NIC mode of operation */
         err = qlcnic_83xx_configure_opmode(adapter);
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ctx.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ctx.c
index 64dcbf33d8f0..c1e11f5715b0 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ctx.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ctx.c
@@ -883,8 +883,6 @@ int qlcnic_82xx_get_nic_info(struct qlcnic_adapter *adapter,
                 npar_info->max_rx_ques = le16_to_cpu(nic_info->max_rx_ques);
                 npar_info->capabilities = le32_to_cpu(nic_info->capabilities);
                 npar_info->max_mtu = le16_to_cpu(nic_info->max_mtu);
-                adapter->max_tx_rings = npar_info->max_tx_ques;
-                adapter->max_sds_rings = npar_info->max_rx_ques;
         }
 
         qlcnic_free_mbx_args(&cmd);
@@ -1356,6 +1354,7 @@ int qlcnic_config_switch_port(struct qlcnic_adapter *adapter,
                         arg2 &= ~BIT_3;
                 break;
         case QLCNIC_ADD_VLAN:
+                        arg1 &= ~(0x0ffff << 16);
                         arg1 |= (BIT_2 | BIT_5);
                         arg1 |= (esw_cfg->vlan_id << 16);
                         break;
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_dcb.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_dcb.c
index 7d4f54912bad..a51fe18f09a8 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_dcb.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_dcb.c
@@ -330,8 +330,6 @@ static int __qlcnic_dcb_attach(struct qlcnic_dcb *dcb)
                 goto out_free_cfg;
         }
 
-        qlcnic_dcb_get_info(dcb);
-
         return 0;
 out_free_cfg:
         kfree(dcb->cfg);
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
index 309d05640883..dbf75393f758 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
@@ -670,7 +670,7 @@ int qlcnic_setup_tss_rss_intr(struct qlcnic_adapter *adapter)
         else
                 num_msix += adapter->drv_tx_rings;
 
-        if (adapter->drv_rss_rings  > 0)
+        if (adapter->drv_rss_rings > 0)
                 num_msix += adapter->drv_rss_rings;
         else
                 num_msix += adapter->drv_sds_rings;
@@ -686,19 +686,15 @@ int qlcnic_setup_tss_rss_intr(struct qlcnic_adapter *adapter)
                         return -ENOMEM;
         }
 
-restore:
         for (vector = 0; vector < num_msix; vector++)
                 adapter->msix_entries[vector].entry = vector;
 
+restore:
         err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
-        if (err == 0) {
-                adapter->ahw->num_msix = num_msix;
-                if (adapter->drv_tss_rings > 0)
-                        adapter->drv_tx_rings = adapter->drv_tss_rings;
+        if (err > 0) {
+                if (!adapter->drv_tss_rings && !adapter->drv_rss_rings)
+                        return -ENOSPC;
 
-                if (adapter->drv_rss_rings > 0)
-                        adapter->drv_sds_rings = adapter->drv_rss_rings;
-        } else {
                 netdev_info(adapter->netdev,
                             "Unable to allocate %d MSI-X vectors, Available vectors %d\n",
                             num_msix, err);
@@ -716,12 +712,20 @@ restore:
                             "Restoring %d Tx, %d SDS rings for total %d vectors.\n",
                             adapter->drv_tx_rings, adapter->drv_sds_rings,
                             num_msix);
-                goto restore;
 
-                err = -EIO;
+                goto restore;
+        } else if (err < 0) {
+                return err;
         }
 
-        return err;
+        adapter->ahw->num_msix = num_msix;
+        if (adapter->drv_tss_rings > 0)
+                adapter->drv_tx_rings = adapter->drv_tss_rings;
+
+        if (adapter->drv_rss_rings > 0)
+                adapter->drv_sds_rings = adapter->drv_rss_rings;
+
+        return 0;
 }
 
 int qlcnic_enable_msix(struct qlcnic_adapter *adapter, u32 num_msix)
@@ -2528,8 +2532,6 @@ qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
                 goto err_out_free_hw;
         }
 
-        qlcnic_dcb_enable(adapter->dcb);
-
         if (qlcnic_read_mac_addr(adapter))
                 dev_warn(&pdev->dev, "failed to read mac addr\n");
 
@@ -2549,7 +2551,10 @@ qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
                          "Device does not support MSI interrupts\n");
 
         if (qlcnic_82xx_check(adapter)) {
+                qlcnic_dcb_enable(adapter->dcb);
+                qlcnic_dcb_get_info(adapter->dcb);
                 err = qlcnic_setup_intr(adapter);
+
                 if (err) {
                         dev_err(&pdev->dev, "Failed to setup interrupt\n");
                         goto err_out_disable_msi;
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_pf.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_pf.c
index 14f748cbf0de..280137991544 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_pf.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_pf.c
@@ -461,6 +461,16 @@ static int qlcnic_pci_sriov_disable(struct qlcnic_adapter *adapter)
 {
         struct net_device *netdev = adapter->netdev;
 
+        if (pci_vfs_assigned(adapter->pdev)) {
+                netdev_err(adapter->netdev,
+                           "SR-IOV VFs belonging to port %d are assigned to VMs. SR-IOV can not be disabled on this port\n",
+                           adapter->portnum);
+                netdev_info(adapter->netdev,
+                            "Please detach SR-IOV VFs belonging to port %d from VMs, and then try to disable SR-IOV on this port\n",
+                            adapter->portnum);
+                return -EPERM;
+        }
+
         rtnl_lock();
         if (netif_running(netdev))
                 __qlcnic_down(adapter, netdev);
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sysfs.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sysfs.c
index 448d156c3d08..cd346e27f2e1 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sysfs.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sysfs.c
@@ -354,7 +354,7 @@ int qlcnic_is_valid_nic_func(struct qlcnic_adapter *adapter, u8 pci_func)
 {
         int i;
 
-        for (i = 0; i < adapter->ahw->max_vnic_func; i++) {
+        for (i = 0; i < adapter->ahw->total_nic_func; i++) {
                 if (adapter->npars[i].pci_func == pci_func)
                         return i;
         }
@@ -720,6 +720,7 @@ static ssize_t qlcnic_sysfs_read_npar_config(struct file *file,
         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
         struct qlcnic_npar_func_cfg *np_cfg;
         struct qlcnic_info nic_info;
+        u8 pci_func;
         int i, ret;
         u32 count;
 
@@ -729,26 +730,28 @@ static ssize_t qlcnic_sysfs_read_npar_config(struct file *file,
 
         count = size / sizeof(struct qlcnic_npar_func_cfg);
         for (i = 0; i < adapter->ahw->total_nic_func; i++) {
-                if (qlcnic_is_valid_nic_func(adapter, i) < 0)
-                        continue;
                 if (adapter->npars[i].pci_func >= count) {
                         dev_dbg(dev, "%s: Total nic functions[%d], App sent function count[%d]\n",
                                 __func__, adapter->ahw->total_nic_func, count);
                         continue;
                 }
-                ret = qlcnic_get_nic_info(adapter, &nic_info, i);
-                if (ret)
-                        return ret;
                 if (!adapter->npars[i].eswitch_status)
                         continue;
-                np_cfg[i].pci_func = i;
-                np_cfg[i].op_mode = (u8)nic_info.op_mode;
-                np_cfg[i].port_num = nic_info.phys_port;
-                np_cfg[i].fw_capab = nic_info.capabilities;
-                np_cfg[i].min_bw = nic_info.min_tx_bw;
-                np_cfg[i].max_bw = nic_info.max_tx_bw;
-                np_cfg[i].max_tx_queues = nic_info.max_tx_ques;
-                np_cfg[i].max_rx_queues = nic_info.max_rx_ques;
+                pci_func = adapter->npars[i].pci_func;
+                if (qlcnic_is_valid_nic_func(adapter, pci_func) < 0)
+                        continue;
+                ret = qlcnic_get_nic_info(adapter, &nic_info, pci_func);
+                if (ret)
+                        return ret;
+
+                np_cfg[pci_func].pci_func = pci_func;
+                np_cfg[pci_func].op_mode = (u8)nic_info.op_mode;
+                np_cfg[pci_func].port_num = nic_info.phys_port;
+                np_cfg[pci_func].fw_capab = nic_info.capabilities;
+                np_cfg[pci_func].min_bw = nic_info.min_tx_bw;
+                np_cfg[pci_func].max_bw = nic_info.max_tx_bw;
+                np_cfg[pci_func].max_tx_queues = nic_info.max_tx_ques;
+                np_cfg[pci_func].max_rx_queues = nic_info.max_rx_ques;
         }
         return size;
 }
diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c
index 5d5fec6c4eb0..36aa109416c4 100644
--- a/drivers/net/ethernet/ti/cpsw.c
+++ b/drivers/net/ethernet/ti/cpsw.c
@@ -687,7 +687,7 @@ static void cpsw_rx_handler(void *token, int len, int status)
 
         cpsw_dual_emac_src_port_detect(status, priv, ndev, skb);
 
-        if (unlikely(status < 0)) {
+        if (unlikely(status < 0) || unlikely(!netif_running(ndev))) {
                 /* the interface is going down, skbs are purged */
                 dev_kfree_skb_any(skb);
                 return;
@@ -1201,8 +1201,7 @@ static int cpsw_ndo_open(struct net_device *ndev)
         for_each_slave(priv, cpsw_slave_open, priv);
 
         /* Add default VLAN */
-        if (!priv->data.dual_emac)
-                cpsw_add_default_vlan(priv);
+        cpsw_add_default_vlan(priv);
 
         if (!cpsw_common_res_usage_state(priv)) {
                 /* setup tx dma to fixed prio and zero offset */
@@ -1253,6 +1252,12 @@ static int cpsw_ndo_open(struct net_device *ndev)
                 cpsw_set_coalesce(ndev, &coal);
         }
 
+        napi_enable(&priv->napi);
+        cpdma_ctlr_start(priv->dma);
+        cpsw_intr_enable(priv);
+        cpdma_ctlr_eoi(priv->dma, CPDMA_EOI_RX);
+        cpdma_ctlr_eoi(priv->dma, CPDMA_EOI_TX);
+
         prim_cpsw = cpsw_get_slave_priv(priv, 0);
         if (prim_cpsw->irq_enabled == false) {
                 if ((priv == prim_cpsw) || !netif_running(prim_cpsw->ndev)) {
@@ -1261,12 +1266,6 @@ static int cpsw_ndo_open(struct net_device *ndev)
                 }
         }
 
-        napi_enable(&priv->napi);
-        cpdma_ctlr_start(priv->dma);
-        cpsw_intr_enable(priv);
-        cpdma_ctlr_eoi(priv->dma, CPDMA_EOI_RX);
-        cpdma_ctlr_eoi(priv->dma, CPDMA_EOI_TX);
-
         if (priv->data.dual_emac)
                 priv->slaves[priv->emac_port].open_stat = true;
         return 0;
diff --git a/drivers/net/hyperv/hyperv_net.h b/drivers/net/hyperv/hyperv_net.h
index 13010b4dae5b..d18f711d0b0c 100644
--- a/drivers/net/hyperv/hyperv_net.h
+++ b/drivers/net/hyperv/hyperv_net.h
@@ -747,6 +747,7 @@ struct ndis_oject_header {
 #define NDIS_TCP_LARGE_SEND_OFFLOAD_IPV4        0
 #define NDIS_TCP_LARGE_SEND_OFFLOAD_IPV6        1
 
+#define VERSION_4_OFFLOAD_SIZE                  22
 /*
  * New offload OIDs for NDIS 6
  */
diff --git a/drivers/net/hyperv/netvsc.c b/drivers/net/hyperv/netvsc.c
index daddea2654ce..f7629ecefa84 100644
--- a/drivers/net/hyperv/netvsc.c
+++ b/drivers/net/hyperv/netvsc.c
@@ -344,7 +344,7 @@ static int netvsc_connect_vsp(struct hv_device *device)
         memset(init_packet, 0, sizeof(struct nvsp_message));
 
         if (net_device->nvsp_version <= NVSP_PROTOCOL_VERSION_4)
-                ndis_version = 0x00050001;
+                ndis_version = 0x00060001;
         else
                 ndis_version = 0x0006001e;
 
diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c
index 4e4cf9e0c8d7..31e55fba7cad 100644
--- a/drivers/net/hyperv/netvsc_drv.c
+++ b/drivers/net/hyperv/netvsc_drv.c
@@ -319,7 +319,9 @@ static int netvsc_start_xmit(struct sk_buff *skb, struct net_device *net)
         packet = kzalloc(sizeof(struct hv_netvsc_packet) +
                          (num_data_pgs * sizeof(struct hv_page_buffer)) +
                          sizeof(struct rndis_message) +
-                         NDIS_VLAN_PPI_SIZE, GFP_ATOMIC);
+                         NDIS_VLAN_PPI_SIZE +
+                         NDIS_CSUM_PPI_SIZE +
+                         NDIS_LSO_PPI_SIZE, GFP_ATOMIC);
         if (!packet) {
                 /* out of memory, drop packet */
                 netdev_err(net, "unable to allocate hv_netvsc_packet\n");
@@ -396,7 +398,30 @@ static int netvsc_start_xmit(struct sk_buff *skb, struct net_device *net)
                 csum_info->transmit.tcp_checksum = 1;
                 csum_info->transmit.tcp_header_offset = hdr_offset;
         } else if (net_trans_info & INFO_UDP) {
-                csum_info->transmit.udp_checksum = 1;
+                /* UDP checksum offload is not supported on ws2008r2.
+                 * Furthermore, on ws2012 and ws2012r2, there are some
+                 * issues with udp checksum offload from Linux guests.
+                 * (these are host issues).
+                 * For now compute the checksum here.
+                 */
+                struct udphdr *uh;
+                u16 udp_len;
+
+                ret = skb_cow_head(skb, 0);
+                if (ret)
+                        goto drop;
+
+                uh = udp_hdr(skb);
+                udp_len = ntohs(uh->len);
+                uh->check = 0;
+                uh->check = csum_tcpudp_magic(ip_hdr(skb)->saddr,
+                                              ip_hdr(skb)->daddr,
+                                              udp_len, IPPROTO_UDP,
+                                              csum_partial(uh, udp_len, 0));
+                if (uh->check == 0)
+                        uh->check = CSUM_MANGLED_0;
+
+                csum_info->transmit.udp_checksum = 0;
         }
         goto do_send;
 
@@ -436,6 +461,7 @@ do_send:
 
         ret = netvsc_send(net_device_ctx->device_ctx, packet);
 
+drop:
         if (ret == 0) {
                 net->stats.tx_bytes += skb->len;
                 net->stats.tx_packets++;
diff --git a/drivers/net/hyperv/rndis_filter.c b/drivers/net/hyperv/rndis_filter.c
index 4a37e3db9e32..143a98caf618 100644
--- a/drivers/net/hyperv/rndis_filter.c
+++ b/drivers/net/hyperv/rndis_filter.c
@@ -641,6 +641,16 @@ int rndis_filter_set_offload_params(struct hv_device *hdev,
         struct rndis_set_complete *set_complete;
         u32 extlen = sizeof(struct ndis_offload_params);
         int ret, t;
+        u32 vsp_version = nvdev->nvsp_version;
+
+        if (vsp_version <= NVSP_PROTOCOL_VERSION_4) {
+                extlen = VERSION_4_OFFLOAD_SIZE;
+                /* On NVSP_PROTOCOL_VERSION_4 and below, we do not support
+                 * UDP checksum offload.
+                 */
+                req_offloads->udp_ip_v4_csum = 0;
+                req_offloads->udp_ip_v6_csum = 0;
+        }
 
         request = get_rndis_request(rdev, RNDIS_MSG_SET,
                 RNDIS_MESSAGE_SIZE(struct rndis_set_request) + extlen);
@@ -674,7 +684,7 @@ int rndis_filter_set_offload_params(struct hv_device *hdev,
         } else {
                 set_complete = &request->response_msg.msg.set_complete;
                 if (set_complete->status != RNDIS_STATUS_SUCCESS) {
-                        netdev_err(ndev, "Fail to set MAC on host side:0x%x\n",
+                        netdev_err(ndev, "Fail to set offload on host side:0x%x\n",
                                    set_complete->status);
                         ret = -EINVAL;
                 }
diff --git a/drivers/net/ieee802154/at86rf230.c b/drivers/net/ieee802154/at86rf230.c
index 430bb0db9bc4..e36f194673a4 100644
--- a/drivers/net/ieee802154/at86rf230.c
+++ b/drivers/net/ieee802154/at86rf230.c
@@ -365,7 +365,7 @@ __at86rf230_read_subreg(struct at86rf230_local *lp,
         dev_vdbg(&lp->spi->dev, "buf[1] = %02x\n", buf[1]);
 
         if (status == 0)
-                *data = buf[1];
+                *data = (buf[1] & mask) >> shift;
 
         return status;
 }
@@ -1025,14 +1025,6 @@ static int at86rf230_hw_init(struct at86rf230_local *lp)
                 return -EINVAL;
         }
 
-        rc = at86rf230_read_subreg(lp, SR_AVDD_OK, &status);
-        if (rc)
-                return rc;
-        if (!status) {
-                dev_err(&lp->spi->dev, "AVDD error\n");
-                return -EINVAL;
-        }
-
         return 0;
 }
 
diff --git a/drivers/net/ntb_netdev.c b/drivers/net/ntb_netdev.c
index f3cdf64997d6..63aa9d9e34c5 100644
--- a/drivers/net/ntb_netdev.c
+++ b/drivers/net/ntb_netdev.c
@@ -78,11 +78,19 @@ static void ntb_netdev_event_handler(void *data, int status)
         netdev_dbg(ndev, "Event %x, Link %x\n", status,
                    ntb_transport_link_query(dev->qp));
 
-        /* Currently, only link status event is supported */
-        if (status)
-                netif_carrier_on(ndev);
-        else
+        switch (status) {
+        case NTB_LINK_DOWN:
                 netif_carrier_off(ndev);
+                break;
+        case NTB_LINK_UP:
+                if (!ntb_transport_link_query(dev->qp))
+                        return;
+
+                netif_carrier_on(ndev);
+                break;
+        default:
+                netdev_warn(ndev, "Unsupported event type %d\n", status);
+        }
 }
 
 static void ntb_netdev_rx_handler(struct ntb_transport_qp *qp, void *qp_data,
@@ -182,8 +190,10 @@ static int ntb_netdev_open(struct net_device *ndev)
 
                 rc = ntb_transport_rx_enqueue(dev->qp, skb, skb->data,
                                               ndev->mtu + ETH_HLEN);
-                if (rc == -EINVAL)
+                if (rc == -EINVAL) {
+                        dev_kfree_skb(skb);
                         goto err;
+                }
         }
 
         netif_carrier_off(ndev);
@@ -367,12 +377,15 @@ static void ntb_netdev_remove(struct pci_dev *pdev)
 {
         struct net_device *ndev;
         struct ntb_netdev *dev;
+        bool found = false;
 
         list_for_each_entry(dev, &dev_list, list) {
-                if (dev->pdev == pdev)
+                if (dev->pdev == pdev) {
+                        found = true;
                         break;
+                }
         }
-        if (dev == NULL)
+        if (!found)
                 return;
 
         list_del(&dev->list);
diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c
index 1d788f19135b..1b6d09aef427 100644
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -756,12 +756,8 @@ void phy_state_machine(struct work_struct *work)
                         netif_carrier_on(phydev->attached_dev);
                         phydev->adjust_link(phydev->attached_dev);
 
-                } else if (0 == phydev->link_timeout--) {
+                } else if (0 == phydev->link_timeout--)
                         needs_aneg = 1;
-                        /* If we have the magic_aneg bit, we try again */
-                        if (phydev->drv->flags & PHY_HAS_MAGICANEG)
-                                break;
-                }
                 break;
         case PHY_NOLINK:
                 err = phy_read_status(phydev);
diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
index 18e12a3f7fc3..3fbfb0869030 100644
--- a/drivers/net/usb/r8152.c
+++ b/drivers/net/usb/r8152.c
@@ -929,6 +929,9 @@ static int read_mii_word(struct net_device *netdev, int phy_id, int reg)
         struct r8152 *tp = netdev_priv(netdev);
         int ret;
 
+        if (test_bit(RTL8152_UNPLUG, &tp->flags))
+                return -ENODEV;
+
         if (phy_id != R8152_PHY_ID)
                 return -EINVAL;
 
@@ -949,6 +952,9 @@ void write_mii_word(struct net_device *netdev, int phy_id, int reg, int val)
 {
         struct r8152 *tp = netdev_priv(netdev);
 
+        if (test_bit(RTL8152_UNPLUG, &tp->flags))
+                return;
+
         if (phy_id != R8152_PHY_ID)
                 return;
 
@@ -1962,6 +1968,9 @@ static int rtl_enable(struct r8152 *tp)
 
 static int rtl8152_enable(struct r8152 *tp)
 {
+        if (test_bit(RTL8152_UNPLUG, &tp->flags))
+                return -ENODEV;
+
         set_tx_qlen(tp);
         rtl_set_eee_plus(tp);
 
@@ -1994,6 +2003,9 @@ static void r8153_set_rx_agg(struct r8152 *tp)
 
 static int rtl8153_enable(struct r8152 *tp)
 {
+        if (test_bit(RTL8152_UNPLUG, &tp->flags))
+                return -ENODEV;
+
         set_tx_qlen(tp);
         rtl_set_eee_plus(tp);
         r8153_set_rx_agg(tp);
@@ -2006,6 +2018,11 @@ static void rtl8152_disable(struct r8152 *tp)
         u32 ocp_data;
         int i;
 
+        if (test_bit(RTL8152_UNPLUG, &tp->flags)) {
+                rtl_drop_queued_tx(tp);
+                return;
+        }
+
         ocp_data = ocp_read_dword(tp, MCU_TYPE_PLA, PLA_RCR);
         ocp_data &= ~RCR_ACPT_ALL;
         ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RCR, ocp_data);
@@ -2232,6 +2249,9 @@ static void r8152b_exit_oob(struct r8152 *tp)
         u32 ocp_data;
         int i;
 
+        if (test_bit(RTL8152_UNPLUG, &tp->flags))
+                return;
+
         ocp_data = ocp_read_dword(tp, MCU_TYPE_PLA, PLA_RCR);
         ocp_data &= ~RCR_ACPT_ALL;
         ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RCR, ocp_data);
@@ -2460,6 +2480,9 @@ static void r8153_first_init(struct r8152 *tp)
         u32 ocp_data;
         int i;
 
+        if (test_bit(RTL8152_UNPLUG, &tp->flags))
+                return;
+
         rxdy_gated_en(tp, true);
         r8153_teredo_off(tp);
 
@@ -2687,6 +2710,11 @@ out:
 
 static void rtl8152_down(struct r8152 *tp)
 {
+        if (test_bit(RTL8152_UNPLUG, &tp->flags)) {
+                rtl_drop_queued_tx(tp);
+                return;
+        }
+
         r8152_power_cut_en(tp, false);
         r8152b_disable_aldps(tp);
         r8152b_enter_oob(tp);
@@ -2695,6 +2723,11 @@ static void rtl8152_down(struct r8152 *tp)
 
 static void rtl8153_down(struct r8152 *tp)
 {
+        if (test_bit(RTL8152_UNPLUG, &tp->flags)) {
+                rtl_drop_queued_tx(tp);
+                return;
+        }
+
         r8153_u1u2en(tp, false);
         r8153_power_cut_en(tp, false);
         r8153_disable_aldps(tp);
@@ -2904,6 +2937,9 @@ static void r8152b_init(struct r8152 *tp)
 {
         u32 ocp_data;
 
+        if (test_bit(RTL8152_UNPLUG, &tp->flags))
+                return;
+
         if (tp->version == RTL_VER_01) {
                 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_LED_FEATURE);
                 ocp_data &= ~LED_MODE_MASK;
@@ -2939,6 +2975,9 @@ static void r8153_init(struct r8152 *tp)
         u32 ocp_data;
         int i;
 
+        if (test_bit(RTL8152_UNPLUG, &tp->flags))
+                return;
+
         r8153_u1u2en(tp, false);
 
         for (i = 0; i < 500; i++) {
@@ -3213,6 +3252,9 @@ static int rtl8152_ioctl(struct net_device *netdev, struct ifreq *rq, int cmd)
         struct mii_ioctl_data *data = if_mii(rq);
         int res;
 
+        if (test_bit(RTL8152_UNPLUG, &tp->flags))
+                return -ENODEV;
+
         res = usb_autopm_get_interface(tp->intf);
         if (res < 0)
                 goto out;
@@ -3293,12 +3335,18 @@ static void r8152b_get_version(struct r8152 *tp)
 
 static void rtl8152_unload(struct r8152 *tp)
 {
+        if (test_bit(RTL8152_UNPLUG, &tp->flags))
+                return;
+
         if (tp->version != RTL_VER_01)
                 r8152_power_cut_en(tp, true);
 }
 
 static void rtl8153_unload(struct r8152 *tp)
 {
+        if (test_bit(RTL8152_UNPLUG, &tp->flags))
+                return;
+
         r8153_power_cut_en(tp, true);
 }
 
diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index c55e316373a1..82355d5d155a 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -1755,8 +1755,8 @@ int vxlan_xmit_skb(struct vxlan_sock *vs,
         if (err)
                 return err;
 
-        return iptunnel_xmit(rt, skb, src, dst, IPPROTO_UDP, tos, ttl, df,
-                             false);
+        return iptunnel_xmit(vs->sock->sk, rt, skb, src, dst, IPPROTO_UDP,
+                             tos, ttl, df, false);
 }
 EXPORT_SYMBOL_GPL(vxlan_xmit_skb);
 
diff --git a/drivers/net/wan/cosa.c b/drivers/net/wan/cosa.c
index 84734a805092..83c39e2858bf 100644
--- a/drivers/net/wan/cosa.c
+++ b/drivers/net/wan/cosa.c
@@ -1521,11 +1521,7 @@ static int cosa_reset_and_read_id(struct cosa_data *cosa, char *idstring)
         cosa_putstatus(cosa, 0);
         cosa_getdata8(cosa);
         cosa_putstatus(cosa, SR_RST);
-#ifdef MODULE
         msleep(500);
-#else
-        udelay(5*100000);
-#endif
         /* Disable all IRQs from the card */
         cosa_putstatus(cosa, 0);
 
diff --git a/drivers/net/wireless/ath/ath9k/ar5008_phy.c b/drivers/net/wireless/ath/ath9k/ar5008_phy.c
index 3b3e91057a4c..00fb8badbacc 100644
--- a/drivers/net/wireless/ath/ath9k/ar5008_phy.c
+++ b/drivers/net/wireless/ath/ath9k/ar5008_phy.c
@@ -1004,11 +1004,9 @@ static bool ar5008_hw_ani_control_new(struct ath_hw *ah,
         case ATH9K_ANI_FIRSTEP_LEVEL:{
                 u32 level = param;
 
-                value = level * 2;
+                value = level;
                 REG_RMW_FIELD(ah, AR_PHY_FIND_SIG,
                               AR_PHY_FIND_SIG_FIRSTEP, value);
-                REG_RMW_FIELD(ah, AR_PHY_FIND_SIG_LOW,
-                              AR_PHY_FIND_SIG_FIRSTEP_LOW, value);
 
                 if (level != aniState->firstepLevel) {
                         ath_dbg(common, ANI,
diff --git a/drivers/net/wireless/ath/ath9k/beacon.c b/drivers/net/wireless/ath/ath9k/beacon.c
index 471e0f624e81..bd9e634879e6 100644
--- a/drivers/net/wireless/ath/ath9k/beacon.c
+++ b/drivers/net/wireless/ath/ath9k/beacon.c
@@ -312,10 +312,9 @@ static void ath9k_csa_update_vif(void *data, u8 *mac, struct ieee80211_vif *vif)
 
 void ath9k_csa_update(struct ath_softc *sc)
 {
-        ieee80211_iterate_active_interfaces(sc->hw,
-                                            IEEE80211_IFACE_ITER_NORMAL,
-                                            ath9k_csa_update_vif,
-                                            sc);
+        ieee80211_iterate_active_interfaces_atomic(sc->hw,
+                                                   IEEE80211_IFACE_ITER_NORMAL,
+                                                   ath9k_csa_update_vif, sc);
 }
 
 void ath9k_beacon_tasklet(unsigned long data)
diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c b/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c
index e8149e3dbdd5..289f3d8924b5 100644
--- a/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c
@@ -471,8 +471,11 @@ static void ath9k_htc_tx_process(struct ath9k_htc_priv *priv,
         if (!txok || !vif || !txs)
                 goto send_mac80211;
 
-        if (txs->ts_flags & ATH9K_HTC_TXSTAT_ACK)
+        if (txs->ts_flags & ATH9K_HTC_TXSTAT_ACK) {
                 tx_info->flags |= IEEE80211_TX_STAT_ACK;
+                if (tx_info->flags & IEEE80211_TX_CTL_AMPDU)
+                        tx_info->flags |= IEEE80211_TX_STAT_AMPDU;
+        }
 
         if (txs->ts_flags & ATH9K_HTC_TXSTAT_FILT)
                 tx_info->flags |= IEEE80211_TX_STAT_TX_FILTERED;
diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c
index c0a4e866edca..cbbb02a6b13b 100644
--- a/drivers/net/wireless/ath/ath9k/init.c
+++ b/drivers/net/wireless/ath/ath9k/init.c
@@ -670,6 +670,7 @@ static const struct ieee80211_iface_combination if_comb[] = {
                 .num_different_channels = 1,
                 .beacon_int_infra_match = true,
         },
+#ifdef CONFIG_ATH9K_DFS_CERTIFIED
         {
                 .limits = if_dfs_limits,
                 .n_limits = ARRAY_SIZE(if_dfs_limits),
@@ -679,6 +680,7 @@ static const struct ieee80211_iface_combination if_comb[] = {
                 .radar_detect_widths =  BIT(NL80211_CHAN_WIDTH_20_NOHT) |
                                         BIT(NL80211_CHAN_WIDTH_20),
         }
+#endif
 };
 
 static void ath9k_set_hw_capab(struct ath_softc *sc, struct ieee80211_hw *hw)
diff --git a/drivers/net/wireless/b43/phy_n.c b/drivers/net/wireless/b43/phy_n.c
index 05ee7f10cc8f..24ccbe96e0c8 100644
--- a/drivers/net/wireless/b43/phy_n.c
+++ b/drivers/net/wireless/b43/phy_n.c
@@ -5176,22 +5176,22 @@ static void b43_nphy_channel_setup(struct b43_wldev *dev,
         int ch = new_channel->hw_value;
 
         u16 old_band_5ghz;
-        u32 tmp32;
+        u16 tmp16;
 
         old_band_5ghz =
                 b43_phy_read(dev, B43_NPHY_BANDCTL) & B43_NPHY_BANDCTL_5GHZ;
         if (new_channel->band == IEEE80211_BAND_5GHZ && !old_band_5ghz) {
-                tmp32 = b43_read32(dev, B43_MMIO_PSM_PHY_HDR);
-                b43_write32(dev, B43_MMIO_PSM_PHY_HDR, tmp32 | 4);
+                tmp16 = b43_read16(dev, B43_MMIO_PSM_PHY_HDR);
+                b43_write16(dev, B43_MMIO_PSM_PHY_HDR, tmp16 | 4);
                 b43_phy_set(dev, B43_PHY_B_BBCFG, 0xC000);
-                b43_write32(dev, B43_MMIO_PSM_PHY_HDR, tmp32);
+                b43_write16(dev, B43_MMIO_PSM_PHY_HDR, tmp16);
                 b43_phy_set(dev, B43_NPHY_BANDCTL, B43_NPHY_BANDCTL_5GHZ);
         } else if (new_channel->band == IEEE80211_BAND_2GHZ && old_band_5ghz) {
                 b43_phy_mask(dev, B43_NPHY_BANDCTL, ~B43_NPHY_BANDCTL_5GHZ);
-                tmp32 = b43_read32(dev, B43_MMIO_PSM_PHY_HDR);
-                b43_write32(dev, B43_MMIO_PSM_PHY_HDR, tmp32 | 4);
+                tmp16 = b43_read16(dev, B43_MMIO_PSM_PHY_HDR);
+                b43_write16(dev, B43_MMIO_PSM_PHY_HDR, tmp16 | 4);
                 b43_phy_mask(dev, B43_PHY_B_BBCFG, 0x3FFF);
-                b43_write32(dev, B43_MMIO_PSM_PHY_HDR, tmp32);
+                b43_write16(dev, B43_MMIO_PSM_PHY_HDR, tmp16);
         }
 
         b43_chantab_phy_upload(dev, e);
diff --git a/drivers/net/wireless/rsi/rsi_91x_core.c b/drivers/net/wireless/rsi/rsi_91x_core.c
index e89535e86caf..1a8d32138593 100644
--- a/drivers/net/wireless/rsi/rsi_91x_core.c
+++ b/drivers/net/wireless/rsi/rsi_91x_core.c
@@ -102,10 +102,10 @@ static u8 rsi_core_determine_hal_queue(struct rsi_common *common)
         }
 
 get_queue_num:
-        q_num = 0;
         recontend_queue = false;
 
         q_num = rsi_determine_min_weight_queue(common);
+
         q_len = skb_queue_len(&common->tx_queue[ii]);
         ii = q_num;
 
@@ -118,7 +118,9 @@ get_queue_num:
                 }
         }
 
-        common->tx_qinfo[q_num].pkt_contended = 0;
+        if (q_num < NUM_EDCA_QUEUES)
+                common->tx_qinfo[q_num].pkt_contended = 0;
+
         /* Adjust the back off values for all queues again */
         recontend_queue = rsi_recalculate_weights(common);
 
diff --git a/drivers/net/wireless/rsi/rsi_91x_debugfs.c b/drivers/net/wireless/rsi/rsi_91x_debugfs.c
index 7e4ef4554411..c466246a323f 100644
--- a/drivers/net/wireless/rsi/rsi_91x_debugfs.c
+++ b/drivers/net/wireless/rsi/rsi_91x_debugfs.c
@@ -289,32 +289,29 @@ int rsi_init_dbgfs(struct rsi_hw *adapter)
         const struct rsi_dbg_files *files;
 
         dev_dbgfs = kzalloc(sizeof(*dev_dbgfs), GFP_KERNEL);
+        if (!dev_dbgfs)
+                return -ENOMEM;
+
         adapter->dfsentry = dev_dbgfs;
 
         snprintf(devdir, sizeof(devdir), "%s",
                  wiphy_name(adapter->hw->wiphy));
-        dev_dbgfs->subdir = debugfs_create_dir(devdir, NULL);
 
-        if (IS_ERR(dev_dbgfs->subdir)) {
-                if (dev_dbgfs->subdir == ERR_PTR(-ENODEV))
-                        rsi_dbg(ERR_ZONE,
-                                "%s:Debugfs has not been mounted\n", __func__);
-                else
-                        rsi_dbg(ERR_ZONE, "debugfs:%s not created\n", devdir);
+        dev_dbgfs->subdir = debugfs_create_dir(devdir, NULL);
 
-                adapter->dfsentry = NULL;
+        if (!dev_dbgfs->subdir) {
                 kfree(dev_dbgfs);
-                return (int)PTR_ERR(dev_dbgfs->subdir);
-        } else {
-                for (ii = 0; ii < adapter->num_debugfs_entries; ii++) {
-                        files = &dev_debugfs_files[ii];
-                        dev_dbgfs->rsi_files[ii] =
-                        debugfs_create_file(files->name,
-                                            files->perms,
-                                            dev_dbgfs->subdir,
-                                            common,
-                                            &files->fops);
-                }
+                return -ENOMEM;
+        }
+
+        for (ii = 0; ii < adapter->num_debugfs_entries; ii++) {
+                files = &dev_debugfs_files[ii];
+                dev_dbgfs->rsi_files[ii] =
+                debugfs_create_file(files->name,
+                                    files->perms,
+                                    dev_dbgfs->subdir,
+                                    common,
+                                    &files->fops);
         }
         return 0;
 }
diff --git a/drivers/net/wireless/rsi/rsi_91x_mgmt.c b/drivers/net/wireless/rsi/rsi_91x_mgmt.c
index 2361a6849ad7..73694295648f 100644
--- a/drivers/net/wireless/rsi/rsi_91x_mgmt.c
+++ b/drivers/net/wireless/rsi/rsi_91x_mgmt.c
@@ -738,7 +738,7 @@ int rsi_hal_load_key(struct rsi_common *common,
  *
  * Return: 0 on success, corresponding error code on failure.
  */
-static u8 rsi_load_bootup_params(struct rsi_common *common)
+static int rsi_load_bootup_params(struct rsi_common *common)
 {
         struct sk_buff *skb;
         struct rsi_boot_params *boot_params;
@@ -1272,6 +1272,7 @@ int rsi_mgmt_pkt_recv(struct rsi_common *common, u8 *msg)
 {
         s32 msg_len = (le16_to_cpu(*(__le16 *)&msg[0]) & 0x0fff);
         u16 msg_type = (msg[2]);
+        int ret;
 
         rsi_dbg(FSM_ZONE, "%s: Msg Len: %d, Msg Type: %4x\n",
                 __func__, msg_len, msg_type);
@@ -1284,8 +1285,9 @@ int rsi_mgmt_pkt_recv(struct rsi_common *common, u8 *msg)
                 if (common->fsm_state == FSM_CARD_NOT_READY) {
                         rsi_set_default_parameters(common);
 
-                        if (rsi_load_bootup_params(common))
-                                return -ENOMEM;
+                        ret = rsi_load_bootup_params(common);
+                        if (ret)
+                                return ret;
                         else
                                 common->fsm_state = FSM_BOOT_PARAMS_SENT;
                 } else {
diff --git a/drivers/net/wireless/rsi/rsi_91x_sdio.c b/drivers/net/wireless/rsi/rsi_91x_sdio.c
index 852453f386e2..2e39d38d6a9e 100644
--- a/drivers/net/wireless/rsi/rsi_91x_sdio.c
+++ b/drivers/net/wireless/rsi/rsi_91x_sdio.c
@@ -756,12 +756,13 @@ fail:
 static void rsi_disconnect(struct sdio_func *pfunction)
 {
         struct rsi_hw *adapter = sdio_get_drvdata(pfunction);
-        struct rsi_91x_sdiodev *dev =
-                (struct rsi_91x_sdiodev *)adapter->rsi_dev;
+        struct rsi_91x_sdiodev *dev;
 
         if (!adapter)
                 return;
 
+        dev = (struct rsi_91x_sdiodev *)adapter->rsi_dev;
+
         dev->write_fail = 2;
         rsi_mac80211_detach(adapter);
 
diff --git a/drivers/net/wireless/rsi/rsi_91x_sdio_ops.c b/drivers/net/wireless/rsi/rsi_91x_sdio_ops.c
index f1cb99cafed8..20d11ccfffe3 100644
--- a/drivers/net/wireless/rsi/rsi_91x_sdio_ops.c
+++ b/drivers/net/wireless/rsi/rsi_91x_sdio_ops.c
@@ -247,7 +247,7 @@ static int rsi_process_pkt(struct rsi_common *common)
         if (!common->rx_data_pkt) {
                 rsi_dbg(ERR_ZONE, "%s: Failed in memory allocation\n",
                         __func__);
-                return -1;
+                return -ENOMEM;
         }
 
         status = rsi_sdio_host_intf_read_pkt(adapter,
@@ -260,12 +260,10 @@ static int rsi_process_pkt(struct rsi_common *common)
         }
 
         status = rsi_read_pkt(common, rcv_pkt_len);
-        kfree(common->rx_data_pkt);
-        return status;
 
 fail:
         kfree(common->rx_data_pkt);
-        return -1;
+        return status;
 }
 
 /**
diff --git a/drivers/net/wireless/rsi/rsi_91x_usb.c b/drivers/net/wireless/rsi/rsi_91x_usb.c
index bb1bf96670eb..4c46e5631e2f 100644
--- a/drivers/net/wireless/rsi/rsi_91x_usb.c
+++ b/drivers/net/wireless/rsi/rsi_91x_usb.c
@@ -154,24 +154,30 @@ static int rsi_usb_reg_read(struct usb_device *usbdev,
                             u16 *value,
                             u16 len)
 {
-        u8 temp_buf[4];
-        int status = 0;
+        u8 *buf;
+        int status = -ENOMEM;
+
+        buf  = kmalloc(0x04, GFP_KERNEL);
+        if (!buf)
+                return status;
 
         status = usb_control_msg(usbdev,
                                  usb_rcvctrlpipe(usbdev, 0),
                                  USB_VENDOR_REGISTER_READ,
                                  USB_TYPE_VENDOR,
                                  ((reg & 0xffff0000) >> 16), (reg & 0xffff),
-                                 (void *)temp_buf,
+                                 (void *)buf,
                                  len,
                                  HZ * 5);
 
-        *value = (temp_buf[0] | (temp_buf[1] << 8));
+        *value = (buf[0] | (buf[1] << 8));
         if (status < 0) {
                 rsi_dbg(ERR_ZONE,
                         "%s: Reg read failed with error code :%d\n",
                         __func__, status);
         }
+        kfree(buf);
+
         return status;
 }
 
@@ -190,8 +196,12 @@ static int rsi_usb_reg_write(struct usb_device *usbdev,
                              u16 value,
                              u16 len)
 {
-        u8 usb_reg_buf[4];
-        int status = 0;
+        u8 *usb_reg_buf;
+        int status = -ENOMEM;
+
+        usb_reg_buf  = kmalloc(0x04, GFP_KERNEL);
+        if (!usb_reg_buf)
+                return status;
 
         usb_reg_buf[0] = (value & 0x00ff);
         usb_reg_buf[1] = (value & 0xff00) >> 8;
@@ -212,6 +222,8 @@ static int rsi_usb_reg_write(struct usb_device *usbdev,
                         "%s: Reg write failed with error code :%d\n",
                         __func__, status);
         }
+        kfree(usb_reg_buf);
+
         return status;
 }
 
@@ -286,7 +298,7 @@ int rsi_usb_write_register_multiple(struct rsi_hw *adapter,
                 return -ENOMEM;
 
         while (count) {
-                transfer = min_t(int, count, 4096);
+                transfer = (u8)(min_t(u32, count, 4096));
                 memcpy(buf, data, transfer);
                 status = usb_control_msg(dev->usbdev,
                                          usb_sndctrlpipe(dev->usbdev, 0),
diff --git a/drivers/net/wireless/rtlwifi/btcoexist/halbtcoutsrc.c b/drivers/net/wireless/rtlwifi/btcoexist/halbtcoutsrc.c
index b6722de64a31..33da3dfcfa4f 100644
--- a/drivers/net/wireless/rtlwifi/btcoexist/halbtcoutsrc.c
+++ b/drivers/net/wireless/rtlwifi/btcoexist/halbtcoutsrc.c
@@ -625,17 +625,7 @@ bool exhalbtc_initlize_variables(struct rtl_priv *adapter)
         else
                 btcoexist->binded = true;
 
-#if (defined(CONFIG_PCI_HCI))
-        btcoexist->chip_interface = BTC_INTF_PCI;
-#elif (defined(CONFIG_USB_HCI))
-        btcoexist->chip_interface = BTC_INTF_USB;
-#elif (defined(CONFIG_SDIO_HCI))
-        btcoexist->chip_interface = BTC_INTF_SDIO;
-#elif (defined(CONFIG_GSPI_HCI))
-        btcoexist->chip_interface = BTC_INTF_GSPI;
-#else
         btcoexist->chip_interface = BTC_INTF_UNKNOWN;
-#endif
 
         if (NULL == btcoexist->adapter)
                 btcoexist->adapter = adapter;
diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c
index 057b05700f8b..158b5e639fc7 100644
--- a/drivers/net/xen-netfront.c
+++ b/drivers/net/xen-netfront.c
@@ -1291,13 +1291,13 @@ static struct net_device *xennet_create_dev(struct xenbus_device *dev)
         for (i = 0; i < NET_TX_RING_SIZE; i++) {
                 skb_entry_set_link(&np->tx_skbs[i], i+1);
                 np->grant_tx_ref[i] = GRANT_INVALID_REF;
+                np->grant_tx_page[i] = NULL;
         }
 
         /* Clear out rx_skbs */
         for (i = 0; i < NET_RX_RING_SIZE; i++) {
                 np->rx_skbs[i] = NULL;
                 np->grant_rx_ref[i] = GRANT_INVALID_REF;
-                np->grant_tx_page[i] = NULL;
         }
 
         /* A grant for every tx ring slot */
diff --git a/drivers/ntb/ntb_hw.c b/drivers/ntb/ntb_hw.c
index 170e8e60cdb7..372e08c4ffef 100644
--- a/drivers/ntb/ntb_hw.c
+++ b/drivers/ntb/ntb_hw.c
@@ -91,7 +91,7 @@ static struct dentry *debugfs_dir;
 /* Translate memory window 0,1 to BAR 2,4 */
 #define MW_TO_BAR(mw)   (mw * NTB_MAX_NUM_MW + 2)
 
-static DEFINE_PCI_DEVICE_TABLE(ntb_pci_tbl) = {
+static const struct pci_device_id ntb_pci_tbl[] = {
         {PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_NTB_B2B_BWD)},
         {PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_NTB_B2B_JSF)},
         {PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_NTB_B2B_SNB)},
@@ -120,7 +120,8 @@ MODULE_DEVICE_TABLE(pci, ntb_pci_tbl);
  * RETURNS: An appropriate -ERRNO error value on error, or zero for success.
  */
 int ntb_register_event_callback(struct ntb_device *ndev,
-                            void (*func)(void *handle, enum ntb_hw_event event))
+                                void (*func)(void *handle,
+                                             enum ntb_hw_event event))
 {
         if (ndev->event_cb)
                 return -EINVAL;
@@ -715,9 +716,9 @@ static int ntb_xeon_setup(struct ntb_device *ndev)
                                SNB_PBAR4LMT_OFFSET);
                         /* HW errata on the Limit registers.  They can only be
                          * written when the base register is 4GB aligned and
-                         * < 32bit.  This should already be the case based on the
-                         * driver defaults, but write the Limit registers first
-                         * just in case.
+                         * < 32bit.  This should already be the case based on
+                         * the driver defaults, but write the Limit registers
+                         * first just in case.
                          */
                 } else {
                         ndev->limits.max_mw = SNB_MAX_MW;
@@ -739,9 +740,9 @@ static int ntb_xeon_setup(struct ntb_device *ndev)
                         writeq(0, ndev->reg_base + SNB_PBAR4LMT_OFFSET);
                         /* HW errata on the Limit registers.  They can only be
                          * written when the base register is 4GB aligned and
-                         * < 32bit.  This should already be the case based on the
-                         * driver defaults, but write the Limit registers first
-                         * just in case.
+                         * < 32bit.  This should already be the case based on
+                         * the driver defaults, but write the Limit registers
+                         * first just in case.
                          */
                 }
 
@@ -785,7 +786,7 @@ static int ntb_xeon_setup(struct ntb_device *ndev)
                                 /* B2B_XLAT_OFFSET is a 64bit register, but can
                                  * only take 32bit writes
                                  */
-                                writel(SNB_MBAR01_DSD_ADDR & 0xffffffff,
+                                writel(SNB_MBAR01_USD_ADDR & 0xffffffff,
                                        ndev->reg_base + SNB_B2B_XLAT_OFFSETL);
                                 writel(SNB_MBAR01_USD_ADDR >> 32,
                                        ndev->reg_base + SNB_B2B_XLAT_OFFSETU);
@@ -803,7 +804,7 @@ static int ntb_xeon_setup(struct ntb_device *ndev)
                 ndev->conn_type = NTB_CONN_RP;
 
                 if (xeon_errata_workaround) {
-                        dev_err(&ndev->pdev->dev, 
+                        dev_err(&ndev->pdev->dev,
                                 "NTB-RP disabled due to hardware errata.  To disregard this warning and potentially lock-up the system, add the parameter 'xeon_errata_workaround=0'.\n");
                         return -EINVAL;
                 }
@@ -1079,111 +1080,131 @@ static irqreturn_t ntb_interrupt(int irq, void *dev)
         return IRQ_HANDLED;
 }
 
-static int ntb_setup_msix(struct ntb_device *ndev)
+static int ntb_setup_snb_msix(struct ntb_device *ndev, int msix_entries)
 {
         struct pci_dev *pdev = ndev->pdev;
         struct msix_entry *msix;
-        int msix_entries;
         int rc, i;
-        u16 val;
 
-        if (!pdev->msix_cap) {
-                rc = -EIO;
-                goto err;
-        }
+        if (msix_entries < ndev->limits.msix_cnt)
+                return -ENOSPC;
 
-        rc = pci_read_config_word(pdev, pdev->msix_cap + PCI_MSIX_FLAGS, &val);
-        if (rc)
-                goto err;
+        rc = pci_enable_msix_exact(pdev, ndev->msix_entries, msix_entries);
+        if (rc < 0)
+                return rc;
 
-        msix_entries = msix_table_size(val);
-        if (msix_entries > ndev->limits.msix_cnt) {
-                rc = -EINVAL;
-                goto err;
+        for (i = 0; i < msix_entries; i++) {
+                msix = &ndev->msix_entries[i];
+                WARN_ON(!msix->vector);
+
+                if (i == msix_entries - 1) {
+                        rc = request_irq(msix->vector,
+                                         xeon_event_msix_irq, 0,
+                                         "ntb-event-msix", ndev);
+                        if (rc)
+                                goto err;
+                } else {
+                        rc = request_irq(msix->vector,
+                                         xeon_callback_msix_irq, 0,
+                                         "ntb-callback-msix",
+                                         &ndev->db_cb[i]);
+                        if (rc)
+                                goto err;
+                }
         }
 
-        ndev->msix_entries = kmalloc(sizeof(struct msix_entry) * msix_entries,
-                                     GFP_KERNEL);
-        if (!ndev->msix_entries) {
-                rc = -ENOMEM;
-                goto err;
+        ndev->num_msix = msix_entries;
+        ndev->max_cbs = msix_entries - 1;
+
+        return 0;
+
+err:
+        while (--i >= 0) {
+                /* Code never reaches here for entry nr 'ndev->num_msix - 1' */
+                msix = &ndev->msix_entries[i];
+                free_irq(msix->vector, &ndev->db_cb[i]);
         }
 
-        for (i = 0; i < msix_entries; i++)
-                ndev->msix_entries[i].entry = i;
+        pci_disable_msix(pdev);
+        ndev->num_msix = 0;
 
-        rc = pci_enable_msix(pdev, ndev->msix_entries, msix_entries);
-        if (rc < 0)
-                goto err1;
-        if (rc > 0) {
-                /* On SNB, the link interrupt is always tied to 4th vector.  If
-                 * we can't get all 4, then we can't use MSI-X.
-                 */
-                if (ndev->hw_type != BWD_HW) {
-                        rc = -EIO;
-                        goto err1;
-                }
+        return rc;
+}
 
-                dev_warn(&pdev->dev,
-                         "Only %d MSI-X vectors.  Limiting the number of queues to that number.\n",
-                         rc);
-                msix_entries = rc;
+static int ntb_setup_bwd_msix(struct ntb_device *ndev, int msix_entries)
+{
+        struct pci_dev *pdev = ndev->pdev;
+        struct msix_entry *msix;
+        int rc, i;
 
-                rc = pci_enable_msix(pdev, ndev->msix_entries, msix_entries);
-                if (rc)
-                        goto err1;
-        }
+        msix_entries = pci_enable_msix_range(pdev, ndev->msix_entries,
+                                             1, msix_entries);
+        if (msix_entries < 0)
+                return msix_entries;
 
         for (i = 0; i < msix_entries; i++) {
                 msix = &ndev->msix_entries[i];
                 WARN_ON(!msix->vector);
 
-                /* Use the last MSI-X vector for Link status */
-                if (ndev->hw_type == BWD_HW) {
-                        rc = request_irq(msix->vector, bwd_callback_msix_irq, 0,
-                                         "ntb-callback-msix", &ndev->db_cb[i]);
-                        if (rc)
-                                goto err2;
-                } else {
-                        if (i == msix_entries - 1) {
-                                rc = request_irq(msix->vector,
-                                                 xeon_event_msix_irq, 0,
-                                                 "ntb-event-msix", ndev);
-                                if (rc)
-                                        goto err2;
-                        } else {
-                                rc = request_irq(msix->vector,
-                                                 xeon_callback_msix_irq, 0,
-                                                 "ntb-callback-msix",
-                                                 &ndev->db_cb[i]);
-                                if (rc)
-                                        goto err2;
-                        }
-                }
+                rc = request_irq(msix->vector, bwd_callback_msix_irq, 0,
+                                 "ntb-callback-msix", &ndev->db_cb[i]);
+                if (rc)
+                        goto err;
         }
 
         ndev->num_msix = msix_entries;
+        ndev->max_cbs = msix_entries;
+
+        return 0;
+
+err:
+        while (--i >= 0)
+                free_irq(msix->vector, &ndev->db_cb[i]);
+
+        pci_disable_msix(pdev);
+        ndev->num_msix = 0;
+
+        return rc;
+}
+
+static int ntb_setup_msix(struct ntb_device *ndev)
+{
+        struct pci_dev *pdev = ndev->pdev;
+        int msix_entries;
+        int rc, i;
+
+        msix_entries = pci_msix_vec_count(pdev);
+        if (msix_entries < 0) {
+                rc = msix_entries;
+                goto err;
+        } else if (msix_entries > ndev->limits.msix_cnt) {
+                rc = -EINVAL;
+                goto err;
+        }
+
+        ndev->msix_entries = kmalloc(sizeof(struct msix_entry) * msix_entries,
+                                     GFP_KERNEL);
+        if (!ndev->msix_entries) {
+                rc = -ENOMEM;
+                goto err;
+        }
+
+        for (i = 0; i < msix_entries; i++)
+                ndev->msix_entries[i].entry = i;
+
         if (ndev->hw_type == BWD_HW)
-                ndev->max_cbs = msix_entries;
+                rc = ntb_setup_bwd_msix(ndev, msix_entries);
         else
-                ndev->max_cbs = msix_entries - 1;
+                rc = ntb_setup_snb_msix(ndev, msix_entries);
+        if (rc)
+                goto err1;
 
         return 0;
 
-err2:
-        while (--i >= 0) {
-                msix = &ndev->msix_entries[i];
-                if (ndev->hw_type != BWD_HW && i == ndev->num_msix - 1)
-                        free_irq(msix->vector, ndev);
-                else
-                        free_irq(msix->vector, &ndev->db_cb[i]);
-        }
-        pci_disable_msix(pdev);
 err1:
         kfree(ndev->msix_entries);
-        dev_err(&pdev->dev, "Error allocating MSI-X interrupt\n");
 err:
-        ndev->num_msix = 0;
+        dev_err(&pdev->dev, "Error allocating MSI-X interrupt\n");
         return rc;
 }
 
@@ -1281,6 +1302,7 @@ static void ntb_free_interrupts(struct ntb_device *ndev)
                                 free_irq(msix->vector, &ndev->db_cb[i]);
                 }
                 pci_disable_msix(pdev);
+                kfree(ndev->msix_entries);
         } else {
                 free_irq(pdev->irq, ndev);
 
diff --git a/drivers/ntb/ntb_hw.h b/drivers/ntb/ntb_hw.h
index bbdb7edca10c..465517b7393e 100644
--- a/drivers/ntb/ntb_hw.h
+++ b/drivers/ntb/ntb_hw.h
@@ -45,6 +45,7 @@
  * Contact Information:
  * Jon Mason <jon.mason@intel.com>
  */
+#include <linux/ntb.h>
 
 #define PCI_DEVICE_ID_INTEL_NTB_B2B_JSF         0x3725
 #define PCI_DEVICE_ID_INTEL_NTB_PS_JSF          0x3726
@@ -60,8 +61,6 @@
 #define PCI_DEVICE_ID_INTEL_NTB_SS_HSX          0x2F0F
 #define PCI_DEVICE_ID_INTEL_NTB_B2B_BWD         0x0C4E
 
-#define msix_table_size(control)        ((control & PCI_MSIX_FLAGS_QSIZE)+1)
-
 #ifndef readq
 static inline u64 readq(void __iomem *addr)
 {
@@ -83,9 +82,6 @@ static inline void writeq(u64 val, void __iomem *addr)
 #define NTB_BAR_MASK            ((1 << NTB_BAR_MMIO) | (1 << NTB_BAR_23) |\
                                  (1 << NTB_BAR_45))
 
-#define NTB_LINK_DOWN           0
-#define NTB_LINK_UP             1
-
 #define NTB_HB_TIMEOUT          msecs_to_jiffies(1000)
 
 #define NTB_MAX_NUM_MW          2
@@ -233,7 +229,7 @@ int ntb_register_db_callback(struct ntb_device *ndev, unsigned int idx,
                                                            int db_num));
 void ntb_unregister_db_callback(struct ntb_device *ndev, unsigned int idx);
 int ntb_register_event_callback(struct ntb_device *ndev,
-                                void (*event_cb_func) (void *handle,
+                                void (*event_cb_func)(void *handle,
                                                       enum ntb_hw_event event));
 void ntb_unregister_event_callback(struct ntb_device *ndev);
 int ntb_get_max_spads(struct ntb_device *ndev);
diff --git a/drivers/ntb/ntb_transport.c b/drivers/ntb/ntb_transport.c
index 3217f394d45b..9dd63b822025 100644
--- a/drivers/ntb/ntb_transport.c
+++ b/drivers/ntb/ntb_transport.c
@@ -56,7 +56,6 @@
 #include <linux/pci.h>
 #include <linux/slab.h>
 #include <linux/types.h>
-#include <linux/ntb.h>
 #include "ntb_hw.h"
 
 #define NTB_TRANSPORT_VERSION   3
@@ -107,8 +106,8 @@ struct ntb_transport_qp {
         struct ntb_rx_info __iomem *rx_info;
         struct ntb_rx_info *remote_rx_info;
 
-        void (*tx_handler) (struct ntb_transport_qp *qp, void *qp_data,
-                            void *data, int len);
+        void (*tx_handler)(struct ntb_transport_qp *qp, void *qp_data,
+                           void *data, int len);
         struct list_head tx_free_q;
         spinlock_t ntb_tx_free_q_lock;
         void __iomem *tx_mw;
@@ -117,8 +116,8 @@ struct ntb_transport_qp {
         unsigned int tx_max_entry;
         unsigned int tx_max_frame;
 
-        void (*rx_handler) (struct ntb_transport_qp *qp, void *qp_data,
-                            void *data, int len);
+        void (*rx_handler)(struct ntb_transport_qp *qp, void *qp_data,
+                           void *data, int len);
         struct list_head rx_pend_q;
         struct list_head rx_free_q;
         spinlock_t ntb_rx_pend_q_lock;
@@ -129,7 +128,7 @@ struct ntb_transport_qp {
         unsigned int rx_max_frame;
         dma_cookie_t last_cookie;
 
-        void (*event_handler) (void *data, int status);
+        void (*event_handler)(void *data, int status);
         struct delayed_work link_work;
         struct work_struct link_cleanup;
 
@@ -480,7 +479,7 @@ static void ntb_list_add(spinlock_t *lock, struct list_head *entry,
 }
 
 static struct ntb_queue_entry *ntb_list_rm(spinlock_t *lock,
-                                                struct list_head *list)
+                                           struct list_head *list)
 {
         struct ntb_queue_entry *entry;
         unsigned long flags;
@@ -839,7 +838,7 @@ static void ntb_qp_link_work(struct work_struct *work)
 }
 
 static int ntb_transport_init_queue(struct ntb_transport *nt,
-                                     unsigned int qp_num)
+                                    unsigned int qp_num)
 {
         struct ntb_transport_qp *qp;
         unsigned int num_qps_mw, tx_size;
@@ -1055,7 +1054,7 @@ static void ntb_async_rx(struct ntb_queue_entry *entry, void *offset,
         if (!chan)
                 goto err;
 
-        if (len < copy_bytes) 
+        if (len < copy_bytes)
                 goto err_wait;
 
         device = chan->device;
@@ -1190,8 +1189,7 @@ out:
         return 0;
 
 err:
-        ntb_list_add(&qp->ntb_rx_pend_q_lock, &entry->entry,
-                     &qp->rx_pend_q);
+        ntb_list_add(&qp->ntb_rx_pend_q_lock, &entry->entry, &qp->rx_pend_q);
         /* Ensure that the data is fully copied out before clearing the flag */
         wmb();
         hdr->flags = 0;
diff --git a/drivers/remoteproc/da8xx_remoteproc.c b/drivers/remoteproc/da8xx_remoteproc.c
index 129f7b997866..3841b9813109 100644
--- a/drivers/remoteproc/da8xx_remoteproc.c
+++ b/drivers/remoteproc/da8xx_remoteproc.c
@@ -201,23 +201,11 @@ static int da8xx_rproc_probe(struct platform_device *pdev)
         }
 
         bootreg_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        if (!bootreg_res) {
-                dev_err(dev,
-                        "platform_get_resource(IORESOURCE_MEM, 0): NULL\n");
-                return -EADDRNOTAVAIL;
-        }
-
-        chipsig_res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
-        if (!chipsig_res) {
-                dev_err(dev,
-                        "platform_get_resource(IORESOURCE_MEM, 1): NULL\n");
-                return -EADDRNOTAVAIL;
-        }
-
         bootreg = devm_ioremap_resource(dev, bootreg_res);
         if (IS_ERR(bootreg))
                 return PTR_ERR(bootreg);
 
+        chipsig_res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
         chipsig = devm_ioremap_resource(dev, chipsig_res);
         if (IS_ERR(chipsig))
                 return PTR_ERR(chipsig);
@@ -301,8 +289,6 @@ static int da8xx_rproc_remove(struct platform_device *pdev)
          */
         disable_irq(drproc->irq);
 
-        devm_clk_put(dev, drproc->dsp_clk);
-
         rproc_del(rproc);
         rproc_put(rproc);
 
diff --git a/drivers/remoteproc/ste_modem_rproc.c b/drivers/remoteproc/ste_modem_rproc.c
index 1ec39a4c0b3e..c4ac9104dd8e 100644
--- a/drivers/remoteproc/ste_modem_rproc.c
+++ b/drivers/remoteproc/ste_modem_rproc.c
@@ -164,7 +164,7 @@ sproc_find_loaded_rsc_table(struct rproc *rproc, const struct firmware *fw)
 }
 
 /* STE modem firmware handler operations */
-const struct rproc_fw_ops sproc_fw_ops = {
+static const struct rproc_fw_ops sproc_fw_ops = {
         .load = sproc_load_segments,
         .find_rsc_table = sproc_find_rsc_table,
         .find_loaded_rsc_table = sproc_find_loaded_rsc_table,
@@ -193,7 +193,7 @@ static void sproc_kick_callback(struct ste_modem_device *mdev, int vqid)
                 sproc_dbg(sproc, "no message was found in vqid %d\n", vqid);
 }
 
-struct ste_modem_dev_cb sproc_dev_cb = {
+static struct ste_modem_dev_cb sproc_dev_cb = {
         .kick = sproc_kick_callback,
 };
 
diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig
index c8bd092fc945..02832d64d918 100644
--- a/drivers/scsi/Kconfig
+++ b/drivers/scsi/Kconfig
@@ -263,6 +263,9 @@ config SCSI_SCAN_ASYNC
           You can override this choice by specifying "scsi_mod.scan=sync"
           or async on the kernel's command line.
 
+          Note that this setting also affects whether resuming from
+          system suspend will be performed asynchronously.
+
 menu "SCSI Transports"
         depends on SCSI
 
diff --git a/drivers/scsi/iscsi_tcp.c b/drivers/scsi/iscsi_tcp.c
index bfb6d07d87f0..11854845393b 100644
--- a/drivers/scsi/iscsi_tcp.c
+++ b/drivers/scsi/iscsi_tcp.c
@@ -125,7 +125,7 @@ static inline int iscsi_sw_sk_state_check(struct sock *sk)
         return 0;
 }
 
-static void iscsi_sw_tcp_data_ready(struct sock *sk, int flag)
+static void iscsi_sw_tcp_data_ready(struct sock *sk)
 {
         struct iscsi_conn *conn;
         struct iscsi_tcp_conn *tcp_conn;
diff --git a/drivers/scsi/iscsi_tcp.h b/drivers/scsi/iscsi_tcp.h
index 666fe09378fa..f42ecb238af5 100644
--- a/drivers/scsi/iscsi_tcp.h
+++ b/drivers/scsi/iscsi_tcp.h
@@ -40,7 +40,7 @@ struct iscsi_sw_tcp_conn {
 
         struct iscsi_sw_tcp_send out;
         /* old values for socket callbacks */
-        void                    (*old_data_ready)(struct sock *, int);
+        void                    (*old_data_ready)(struct sock *);
         void                    (*old_state_change)(struct sock *);
         void                    (*old_write_space)(struct sock *);
 
diff --git a/drivers/scsi/qla2xxx/tcm_qla2xxx.c b/drivers/scsi/qla2xxx/tcm_qla2xxx.c
index 788c4fe2b0c9..68fb66fdb757 100644
--- a/drivers/scsi/qla2xxx/tcm_qla2xxx.c
+++ b/drivers/scsi/qla2xxx/tcm_qla2xxx.c
@@ -684,6 +684,20 @@ static void tcm_qla2xxx_queue_tm_rsp(struct se_cmd *se_cmd)
         qlt_xmit_tm_rsp(mcmd);
 }
 
+static void tcm_qla2xxx_aborted_task(struct se_cmd *se_cmd)
+{
+        struct qla_tgt_cmd *cmd = container_of(se_cmd,
+                                struct qla_tgt_cmd, se_cmd);
+        struct scsi_qla_host *vha = cmd->vha;
+        struct qla_hw_data *ha = vha->hw;
+
+        if (!cmd->sg_mapped)
+                return;
+
+        pci_unmap_sg(ha->pdev, cmd->sg, cmd->sg_cnt, cmd->dma_data_direction);
+        cmd->sg_mapped = 0;
+}
+
 /* Local pointer to allocated TCM configfs fabric module */
 struct target_fabric_configfs *tcm_qla2xxx_fabric_configfs;
 struct target_fabric_configfs *tcm_qla2xxx_npiv_fabric_configfs;
@@ -1468,7 +1482,7 @@ static int tcm_qla2xxx_check_initiator_node_acl(
         }
         se_tpg = &tpg->se_tpg;
 
-        se_sess = transport_init_session();
+        se_sess = transport_init_session(TARGET_PROT_NORMAL);
         if (IS_ERR(se_sess)) {
                 pr_err("Unable to initialize struct se_session\n");
                 return PTR_ERR(se_sess);
@@ -1877,6 +1891,7 @@ static struct target_core_fabric_ops tcm_qla2xxx_ops = {
         .queue_data_in                  = tcm_qla2xxx_queue_data_in,
         .queue_status                   = tcm_qla2xxx_queue_status,
         .queue_tm_rsp                   = tcm_qla2xxx_queue_tm_rsp,
+        .aborted_task                   = tcm_qla2xxx_aborted_task,
         /*
          * Setup function pointers for generic logic in
          * target_core_fabric_configfs.c
@@ -1926,6 +1941,7 @@ static struct target_core_fabric_ops tcm_qla2xxx_npiv_ops = {
         .queue_data_in                  = tcm_qla2xxx_queue_data_in,
         .queue_status                   = tcm_qla2xxx_queue_status,
         .queue_tm_rsp                   = tcm_qla2xxx_queue_tm_rsp,
+        .aborted_task                   = tcm_qla2xxx_aborted_task,
         /*
          * Setup function pointers for generic logic in
          * target_core_fabric_configfs.c
diff --git a/drivers/scsi/scsi.c b/drivers/scsi/scsi.c
index c4d632c27a3e..88d46fe6bf98 100644
--- a/drivers/scsi/scsi.c
+++ b/drivers/scsi/scsi.c
@@ -91,6 +91,15 @@ EXPORT_SYMBOL(scsi_logging_level);
 ASYNC_DOMAIN(scsi_sd_probe_domain);
 EXPORT_SYMBOL(scsi_sd_probe_domain);
 
+/*
+ * Separate domain (from scsi_sd_probe_domain) to maximize the benefit of
+ * asynchronous system resume operations.  It is marked 'exclusive' to avoid
+ * being included in the async_synchronize_full() that is invoked by
+ * dpm_resume()
+ */
+ASYNC_DOMAIN_EXCLUSIVE(scsi_sd_pm_domain);
+EXPORT_SYMBOL(scsi_sd_pm_domain);
+
 /* NB: These are exposed through /proc/scsi/scsi and form part of the ABI.
  * You may not alter any existing entry (although adding new ones is
  * encouraged once assigned by ANSI/INCITS T10
diff --git a/drivers/scsi/scsi_pm.c b/drivers/scsi/scsi_pm.c
index 001e9ceda4c3..7454498c4091 100644
--- a/drivers/scsi/scsi_pm.c
+++ b/drivers/scsi/scsi_pm.c
@@ -18,35 +18,77 @@
 
 #ifdef CONFIG_PM_SLEEP
 
-static int scsi_dev_type_suspend(struct device *dev, int (*cb)(struct device *))
+static int do_scsi_suspend(struct device *dev, const struct dev_pm_ops *pm)
 {
+        return pm && pm->suspend ? pm->suspend(dev) : 0;
+}
+
+static int do_scsi_freeze(struct device *dev, const struct dev_pm_ops *pm)
+{
+        return pm && pm->freeze ? pm->freeze(dev) : 0;
+}
+
+static int do_scsi_poweroff(struct device *dev, const struct dev_pm_ops *pm)
+{
+        return pm && pm->poweroff ? pm->poweroff(dev) : 0;
+}
+
+static int do_scsi_resume(struct device *dev, const struct dev_pm_ops *pm)
+{
+        return pm && pm->resume ? pm->resume(dev) : 0;
+}
+
+static int do_scsi_thaw(struct device *dev, const struct dev_pm_ops *pm)
+{
+        return pm && pm->thaw ? pm->thaw(dev) : 0;
+}
+
+static int do_scsi_restore(struct device *dev, const struct dev_pm_ops *pm)
+{
+        return pm && pm->restore ? pm->restore(dev) : 0;
+}
+
+static int scsi_dev_type_suspend(struct device *dev,
+                int (*cb)(struct device *, const struct dev_pm_ops *))
+{
+        const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL;
         int err;
 
+        /* flush pending in-flight resume operations, suspend is synchronous */
+        async_synchronize_full_domain(&scsi_sd_pm_domain);
+
         err = scsi_device_quiesce(to_scsi_device(dev));
         if (err == 0) {
-                if (cb) {
-                        err = cb(dev);
-                        if (err)
-                                scsi_device_resume(to_scsi_device(dev));
-                }
+                err = cb(dev, pm);
+                if (err)
+                        scsi_device_resume(to_scsi_device(dev));
         }
         dev_dbg(dev, "scsi suspend: %d\n", err);
         return err;
 }
 
-static int scsi_dev_type_resume(struct device *dev, int (*cb)(struct device *))
+static int scsi_dev_type_resume(struct device *dev,
+                int (*cb)(struct device *, const struct dev_pm_ops *))
 {
+        const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL;
         int err = 0;
 
-        if (cb)
-                err = cb(dev);
+        err = cb(dev, pm);
         scsi_device_resume(to_scsi_device(dev));
         dev_dbg(dev, "scsi resume: %d\n", err);
+
+        if (err == 0) {
+                pm_runtime_disable(dev);
+                pm_runtime_set_active(dev);
+                pm_runtime_enable(dev);
+        }
+
         return err;
 }
 
 static int
-scsi_bus_suspend_common(struct device *dev, int (*cb)(struct device *))
+scsi_bus_suspend_common(struct device *dev,
+                int (*cb)(struct device *, const struct dev_pm_ops *))
 {
         int err = 0;
 
@@ -66,20 +108,54 @@ scsi_bus_suspend_common(struct device *dev, int (*cb)(struct device *))
         return err;
 }
 
-static int
-scsi_bus_resume_common(struct device *dev, int (*cb)(struct device *))
+static void async_sdev_resume(void *dev, async_cookie_t cookie)
 {
-        int err = 0;
+        scsi_dev_type_resume(dev, do_scsi_resume);
+}
 
-        if (scsi_is_sdev_device(dev))
-                err = scsi_dev_type_resume(dev, cb);
+static void async_sdev_thaw(void *dev, async_cookie_t cookie)
+{
+        scsi_dev_type_resume(dev, do_scsi_thaw);
+}
 
-        if (err == 0) {
+static void async_sdev_restore(void *dev, async_cookie_t cookie)
+{
+        scsi_dev_type_resume(dev, do_scsi_restore);
+}
+
+static int scsi_bus_resume_common(struct device *dev,
+                int (*cb)(struct device *, const struct dev_pm_ops *))
+{
+        async_func_t fn;
+
+        if (!scsi_is_sdev_device(dev))
+                fn = NULL;
+        else if (cb == do_scsi_resume)
+                fn = async_sdev_resume;
+        else if (cb == do_scsi_thaw)
+                fn = async_sdev_thaw;
+        else if (cb == do_scsi_restore)
+                fn = async_sdev_restore;
+        else
+                fn = NULL;
+
+        if (fn) {
+                async_schedule_domain(fn, dev, &scsi_sd_pm_domain);
+
+                /*
+                 * If a user has disabled async probing a likely reason
+                 * is due to a storage enclosure that does not inject
+                 * staggered spin-ups.  For safety, make resume
+                 * synchronous as well in that case.
+                 */
+                if (strncmp(scsi_scan_type, "async", 5) != 0)
+                        async_synchronize_full_domain(&scsi_sd_pm_domain);
+        } else {
                 pm_runtime_disable(dev);
                 pm_runtime_set_active(dev);
                 pm_runtime_enable(dev);
         }
-        return err;
+        return 0;
 }
 
 static int scsi_bus_prepare(struct device *dev)
@@ -97,38 +173,32 @@ static int scsi_bus_prepare(struct device *dev)
 
 static int scsi_bus_suspend(struct device *dev)
 {
-        const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL;
-        return scsi_bus_suspend_common(dev, pm ? pm->suspend : NULL);
+        return scsi_bus_suspend_common(dev, do_scsi_suspend);
 }
 
 static int scsi_bus_resume(struct device *dev)
 {
-        const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL;
-        return scsi_bus_resume_common(dev, pm ? pm->resume : NULL);
+        return scsi_bus_resume_common(dev, do_scsi_resume);
 }
 
 static int scsi_bus_freeze(struct device *dev)
 {
-        const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL;
-        return scsi_bus_suspend_common(dev, pm ? pm->freeze : NULL);
+        return scsi_bus_suspend_common(dev, do_scsi_freeze);
 }
 
 static int scsi_bus_thaw(struct device *dev)
 {
-        const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL;
-        return scsi_bus_resume_common(dev, pm ? pm->thaw : NULL);
+        return scsi_bus_resume_common(dev, do_scsi_thaw);
 }
 
 static int scsi_bus_poweroff(struct device *dev)
 {
-        const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL;
-        return scsi_bus_suspend_common(dev, pm ? pm->poweroff : NULL);
+        return scsi_bus_suspend_common(dev, do_scsi_poweroff);
 }
 
 static int scsi_bus_restore(struct device *dev)
 {
-        const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL;
-        return scsi_bus_resume_common(dev, pm ? pm->restore : NULL);
+        return scsi_bus_resume_common(dev, do_scsi_restore);
 }
 
 #else /* CONFIG_PM_SLEEP */
diff --git a/drivers/scsi/scsi_priv.h b/drivers/scsi/scsi_priv.h
index f079a598bed4..48e5b657e79f 100644
--- a/drivers/scsi/scsi_priv.h
+++ b/drivers/scsi/scsi_priv.h
@@ -112,6 +112,7 @@ extern void scsi_exit_procfs(void);
 #endif /* CONFIG_PROC_FS */
 
 /* scsi_scan.c */
+extern char scsi_scan_type[];
 extern int scsi_complete_async_scans(void);
 extern int scsi_scan_host_selected(struct Scsi_Host *, unsigned int,
                                    unsigned int, unsigned int, int);
@@ -166,6 +167,7 @@ static inline int scsi_autopm_get_host(struct Scsi_Host *h) { return 0; }
 static inline void scsi_autopm_put_host(struct Scsi_Host *h) {}
 #endif /* CONFIG_PM_RUNTIME */
 
+extern struct async_domain scsi_sd_pm_domain;
 extern struct async_domain scsi_sd_probe_domain;
 
 /* 
diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c
index 27f96d5b7680..e02b3aab56ce 100644
--- a/drivers/scsi/scsi_scan.c
+++ b/drivers/scsi/scsi_scan.c
@@ -97,7 +97,7 @@ MODULE_PARM_DESC(max_luns,
 #define SCSI_SCAN_TYPE_DEFAULT "sync"
 #endif
 
-static char scsi_scan_type[6] = SCSI_SCAN_TYPE_DEFAULT;
+char scsi_scan_type[6] = SCSI_SCAN_TYPE_DEFAULT;
 
 module_param_string(scan, scsi_scan_type, sizeof(scsi_scan_type), S_IRUGO);
 MODULE_PARM_DESC(scan, "sync, async or none");
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index 89e6c04ac595..efcbcd182863 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -3026,6 +3026,7 @@ static int sd_remove(struct device *dev)
         devt = disk_devt(sdkp->disk);
         scsi_autopm_get_device(sdkp->device);
 
+        async_synchronize_full_domain(&scsi_sd_pm_domain);
         async_synchronize_full_domain(&scsi_sd_probe_domain);
         blk_queue_prep_rq(sdkp->device->request_queue, scsi_prep_fn);
         blk_queue_unprep_rq(sdkp->device->request_queue, NULL);
diff --git a/drivers/scsi/sym53c8xx_2/sym_hipd.c b/drivers/scsi/sym53c8xx_2/sym_hipd.c
index d92fe4037e94..6b349e301869 100644
--- a/drivers/scsi/sym53c8xx_2/sym_hipd.c
+++ b/drivers/scsi/sym53c8xx_2/sym_hipd.c
@@ -3000,7 +3000,11 @@ sym_dequeue_from_squeue(struct sym_hcb *np, int i, int target, int lun, int task
                 if ((target == -1 || cp->target == target) &&
                     (lun    == -1 || cp->lun    == lun)    &&
                     (task   == -1 || cp->tag    == task)) {
+#ifdef SYM_OPT_HANDLE_DEVICE_QUEUEING
                         sym_set_cam_status(cp->cmd, DID_SOFT_ERROR);
+#else
+                        sym_set_cam_status(cp->cmd, DID_REQUEUE);
+#endif
                         sym_remque(&cp->link_ccbq);
                         sym_insque_tail(&cp->link_ccbq, &np->comp_ccbq);
                 }
diff --git a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_lib-linux.c b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_lib-linux.c
index a54b506ba7ca..37758d1c8a68 100644
--- a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_lib-linux.c
+++ b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_lib-linux.c
@@ -99,16 +99,7 @@ ksocknal_lib_send_iov (ksock_conn_t *conn, ksock_tx_t *tx)
                 struct iovec   *scratchiov = conn->ksnc_scheduler->kss_scratch_iov;
                 unsigned int    niov = tx->tx_niov;
 #endif
-                struct msghdr msg = {
-                        .msg_name       = NULL,
-                        .msg_namelen    = 0,
-                        .msg_iov        = scratchiov,
-                        .msg_iovlen     = niov,
-                        .msg_control    = NULL,
-                        .msg_controllen = 0,
-                        .msg_flags      = MSG_DONTWAIT
-                };
-                mm_segment_t oldmm = get_fs();
+                struct msghdr msg = {.msg_flags = MSG_DONTWAIT};
                 int  i;
 
                 for (nob = i = 0; i < niov; i++) {
@@ -120,9 +111,7 @@ ksocknal_lib_send_iov (ksock_conn_t *conn, ksock_tx_t *tx)
                     nob < tx->tx_resid)
                         msg.msg_flags |= MSG_MORE;
 
-                set_fs (KERNEL_DS);
-                rc = sock_sendmsg(sock, &msg, nob);
-                set_fs (oldmm);
+                rc = kernel_sendmsg(sock, &msg, (struct kvec *)scratchiov, niov, nob);
         }
         return rc;
 }
@@ -174,16 +163,7 @@ ksocknal_lib_send_kiov (ksock_conn_t *conn, ksock_tx_t *tx)
                 struct iovec *scratchiov = conn->ksnc_scheduler->kss_scratch_iov;
                 unsigned int  niov = tx->tx_nkiov;
 #endif
-                struct msghdr msg = {
-                        .msg_name       = NULL,
-                        .msg_namelen    = 0,
-                        .msg_iov        = scratchiov,
-                        .msg_iovlen     = niov,
-                        .msg_control    = NULL,
-                        .msg_controllen = 0,
-                        .msg_flags      = MSG_DONTWAIT
-                };
-                mm_segment_t  oldmm = get_fs();
+                struct msghdr msg = {.msg_flags = MSG_DONTWAIT};
                 int        i;
 
                 for (nob = i = 0; i < niov; i++) {
@@ -196,9 +176,7 @@ ksocknal_lib_send_kiov (ksock_conn_t *conn, ksock_tx_t *tx)
                     nob < tx->tx_resid)
                         msg.msg_flags |= MSG_MORE;
 
-                set_fs (KERNEL_DS);
-                rc = sock_sendmsg(sock, &msg, nob);
-                set_fs (oldmm);
+                rc = kernel_sendmsg(sock, &msg, (struct kvec *)scratchiov, niov, nob);
 
                 for (i = 0; i < niov; i++)
                         kunmap(kiov[i].kiov_page);
@@ -237,15 +215,8 @@ ksocknal_lib_recv_iov (ksock_conn_t *conn)
 #endif
         struct iovec *iov = conn->ksnc_rx_iov;
         struct msghdr msg = {
-                .msg_name       = NULL,
-                .msg_namelen    = 0,
-                .msg_iov        = scratchiov,
-                .msg_iovlen     = niov,
-                .msg_control    = NULL,
-                .msg_controllen = 0,
                 .msg_flags      = 0
         };
-        mm_segment_t oldmm = get_fs();
         int       nob;
         int       i;
         int       rc;
@@ -263,10 +234,8 @@ ksocknal_lib_recv_iov (ksock_conn_t *conn)
         }
         LASSERT (nob <= conn->ksnc_rx_nob_wanted);
 
-        set_fs (KERNEL_DS);
-        rc = sock_recvmsg (conn->ksnc_sock, &msg, nob, MSG_DONTWAIT);
-        /* NB this is just a boolean..........................^ */
-        set_fs (oldmm);
+        rc = kernel_recvmsg(conn->ksnc_sock, &msg,
+                (struct kvec *)scratchiov, niov, nob, MSG_DONTWAIT);
 
         saved_csum = 0;
         if (conn->ksnc_proto == &ksocknal_protocol_v2x) {
@@ -355,14 +324,8 @@ ksocknal_lib_recv_kiov (ksock_conn_t *conn)
 #endif
         lnet_kiov_t   *kiov = conn->ksnc_rx_kiov;
         struct msghdr msg = {
-                .msg_name       = NULL,
-                .msg_namelen    = 0,
-                .msg_iov        = scratchiov,
-                .msg_control    = NULL,
-                .msg_controllen = 0,
                 .msg_flags      = 0
         };
-        mm_segment_t oldmm = get_fs();
         int       nob;
         int       i;
         int       rc;
@@ -370,13 +333,14 @@ ksocknal_lib_recv_kiov (ksock_conn_t *conn)
         void    *addr;
         int       sum;
         int       fragnob;
+        int n;
 
         /* NB we can't trust socket ops to either consume our iovs
          * or leave them alone. */
         addr = ksocknal_lib_kiov_vmap(kiov, niov, scratchiov, pages);
         if (addr != NULL) {
                 nob = scratchiov[0].iov_len;
-                msg.msg_iovlen = 1;
+                n = 1;
 
         } else {
                 for (nob = i = 0; i < niov; i++) {
@@ -384,15 +348,13 @@ ksocknal_lib_recv_kiov (ksock_conn_t *conn)
                         scratchiov[i].iov_base = kmap(kiov[i].kiov_page) +
                                                  kiov[i].kiov_offset;
                 }
-                msg.msg_iovlen = niov;
+                n = niov;
         }
 
         LASSERT (nob <= conn->ksnc_rx_nob_wanted);
 
-        set_fs (KERNEL_DS);
-        rc = sock_recvmsg (conn->ksnc_sock, &msg, nob, MSG_DONTWAIT);
-        /* NB this is just a boolean.......................^ */
-        set_fs (oldmm);
+        rc = kernel_recvmsg(conn->ksnc_sock, &msg,
+                        (struct kvec *)scratchiov, n, nob, MSG_DONTWAIT);
 
         if (conn->ksnc_msg.ksm_csum != 0) {
                 for (i = 0, sum = rc; sum > 0; i++, sum -= fragnob) {
@@ -655,7 +617,7 @@ extern void ksocknal_write_callback (ksock_conn_t *conn);
  * socket call back in Linux
  */
 static void
-ksocknal_data_ready (struct sock *sk, int n)
+ksocknal_data_ready (struct sock *sk)
 {
         ksock_conn_t  *conn;
 
@@ -666,7 +628,7 @@ ksocknal_data_ready (struct sock *sk, int n)
         conn = sk->sk_user_data;
         if (conn == NULL) {          /* raced with ksocknal_terminate_conn */
                 LASSERT (sk->sk_data_ready != &ksocknal_data_ready);
-                sk->sk_data_ready (sk, n);
+                sk->sk_data_ready (sk);
         } else
                 ksocknal_read_callback(conn);
 
diff --git a/drivers/staging/lustre/lustre/libcfs/linux/linux-tcpip.c b/drivers/staging/lustre/lustre/libcfs/linux/linux-tcpip.c
index e6069d78af6b..7539fe16d76f 100644
--- a/drivers/staging/lustre/lustre/libcfs/linux/linux-tcpip.c
+++ b/drivers/staging/lustre/lustre/libcfs/linux/linux-tcpip.c
@@ -265,17 +265,11 @@ libcfs_sock_write (struct socket *sock, void *buffer, int nob, int timeout)
          * empty enough to take the whole message immediately */
 
         for (;;) {
-                struct iovec  iov = {
+                struct kvec  iov = {
                         .iov_base = buffer,
                         .iov_len  = nob
                 };
                 struct msghdr msg = {
-                        .msg_name       = NULL,
-                        .msg_namelen    = 0,
-                        .msg_iov        = &iov,
-                        .msg_iovlen     = 1,
-                        .msg_control    = NULL,
-                        .msg_controllen = 0,
                         .msg_flags      = (timeout == 0) ? MSG_DONTWAIT : 0
                 };
 
@@ -297,11 +291,9 @@ libcfs_sock_write (struct socket *sock, void *buffer, int nob, int timeout)
                         }
                 }
 
-                set_fs (KERNEL_DS);
                 then = jiffies;
-                rc = sock_sendmsg (sock, &msg, iov.iov_len);
+                rc = kernel_sendmsg(sock, &msg, &iov, 1, nob);
                 ticks -= jiffies - then;
-                set_fs (oldmm);
 
                 if (rc == nob)
                         return 0;
@@ -338,17 +330,11 @@ libcfs_sock_read (struct socket *sock, void *buffer, int nob, int timeout)
         LASSERT (ticks > 0);
 
         for (;;) {
-                struct iovec  iov = {
+                struct kvec  iov = {
                         .iov_base = buffer,
                         .iov_len  = nob
                 };
                 struct msghdr msg = {
-                        .msg_name       = NULL,
-                        .msg_namelen    = 0,
-                        .msg_iov        = &iov,
-                        .msg_iovlen     = 1,
-                        .msg_control    = NULL,
-                        .msg_controllen = 0,
                         .msg_flags      = 0
                 };
 
@@ -367,11 +353,9 @@ libcfs_sock_read (struct socket *sock, void *buffer, int nob, int timeout)
                         return rc;
                 }
 
-                set_fs(KERNEL_DS);
                 then = jiffies;
-                rc = sock_recvmsg(sock, &msg, iov.iov_len, 0);
+                rc = kernel_recvmsg(sock, &msg, &iov, 1, nob, 0);
                 ticks -= jiffies - then;
-                set_fs(oldmm);
 
                 if (rc < 0)
                         return rc;
diff --git a/drivers/staging/lustre/lustre/llite/symlink.c b/drivers/staging/lustre/lustre/llite/symlink.c
index ab06891f7fc7..80d48b5ae247 100644
--- a/drivers/staging/lustre/lustre/llite/symlink.c
+++ b/drivers/staging/lustre/lustre/llite/symlink.c
@@ -115,27 +115,6 @@ failed:
         return rc;
 }
 
-static int ll_readlink(struct dentry *dentry, char *buffer, int buflen)
-{
-        struct inode *inode = dentry->d_inode;
-        struct ptlrpc_request *request;
-        char *symname;
-        int rc;
-
-        CDEBUG(D_VFSTRACE, "VFS Op\n");
-
-        ll_inode_size_lock(inode);
-        rc = ll_readlink_internal(inode, &request, &symname);
-        if (rc)
-                GOTO(out, rc);
-
-        rc = vfs_readlink(dentry, buffer, buflen, symname);
- out:
-        ptlrpc_req_finished(request);
-        ll_inode_size_unlock(inode);
-        return rc;
-}
-
 static void *ll_follow_link(struct dentry *dentry, struct nameidata *nd)
 {
         struct inode *inode = dentry->d_inode;
@@ -175,7 +154,7 @@ static void ll_put_link(struct dentry *dentry, struct nameidata *nd, void *cooki
 }
 
 struct inode_operations ll_fast_symlink_inode_operations = {
-        .readlink       = ll_readlink,
+        .readlink       = generic_readlink,
         .setattr        = ll_setattr,
         .follow_link    = ll_follow_link,
         .put_link       = ll_put_link,
diff --git a/drivers/staging/media/msi3101/msi001.c b/drivers/staging/media/msi3101/msi001.c
index ac43bae10102..bd0b93cb6c53 100644
--- a/drivers/staging/media/msi3101/msi001.c
+++ b/drivers/staging/media/msi3101/msi001.c
@@ -201,7 +201,7 @@ static int msi001_set_tuner(struct msi001 *s)
         dev_dbg(&s->spi->dev, "%s: bandwidth selected=%d\n",
                         __func__, bandwidth_lut[i].freq);
 
-        f_vco = (f_rf + f_if + f_if1) * lo_div;
+        f_vco = (u64) (f_rf + f_if + f_if1) * lo_div;
         tmp64 = f_vco;
         m = do_div(tmp64, F_REF * R_REF);
         n = (unsigned int) tmp64;
diff --git a/drivers/staging/media/msi3101/sdr-msi3101.c b/drivers/staging/media/msi3101/sdr-msi3101.c
index 260d1b736721..65d351f99da2 100644
--- a/drivers/staging/media/msi3101/sdr-msi3101.c
+++ b/drivers/staging/media/msi3101/sdr-msi3101.c
@@ -913,7 +913,6 @@ static int msi3101_set_usb_adc(struct msi3101_state *s)
 
         /* set tuner, subdev, filters according to sampling rate */
         bandwidth_auto = v4l2_ctrl_find(&s->hdl, V4L2_CID_RF_TUNER_BANDWIDTH_AUTO);
-        bandwidth = v4l2_ctrl_find(&s->hdl, V4L2_CID_RF_TUNER_BANDWIDTH);
         if (v4l2_ctrl_g_ctrl(bandwidth_auto)) {
                 bandwidth = v4l2_ctrl_find(&s->hdl, V4L2_CID_RF_TUNER_BANDWIDTH);
                 v4l2_ctrl_s_ctrl(bandwidth, s->f_adc);
@@ -1078,6 +1077,7 @@ static int msi3101_start_streaming(struct vb2_queue *vq, unsigned int count)
 static int msi3101_stop_streaming(struct vb2_queue *vq)
 {
         struct msi3101_state *s = vb2_get_drv_priv(vq);
+        int ret;
         dev_dbg(&s->udev->dev, "%s:\n", __func__);
 
         if (mutex_lock_interruptible(&s->v4l2_lock))
@@ -1090,17 +1090,22 @@ static int msi3101_stop_streaming(struct vb2_queue *vq)
 
         /* according to tests, at least 700us delay is required  */
         msleep(20);
-        msi3101_ctrl_msg(s, CMD_STOP_STREAMING, 0);
+        ret = msi3101_ctrl_msg(s, CMD_STOP_STREAMING, 0);
+        if (ret)
+                goto err_sleep_tuner;
 
         /* sleep USB IF / ADC */
-        msi3101_ctrl_msg(s, CMD_WREG, 0x01000003);
+        ret = msi3101_ctrl_msg(s, CMD_WREG, 0x01000003);
+        if (ret)
+                goto err_sleep_tuner;
 
+err_sleep_tuner:
         /* sleep tuner */
-        v4l2_subdev_call(s->v4l2_subdev, core, s_power, 0);
+        ret = v4l2_subdev_call(s->v4l2_subdev, core, s_power, 0);
 
         mutex_unlock(&s->v4l2_lock);
 
-        return 0;
+        return ret;
 }
 
 static struct vb2_ops msi3101_vb2_ops = {
diff --git a/drivers/staging/usbip/stub_dev.c b/drivers/staging/usbip/stub_dev.c
index 773d8ca07a00..de692d7011a5 100644
--- a/drivers/staging/usbip/stub_dev.c
+++ b/drivers/staging/usbip/stub_dev.c
@@ -86,7 +86,6 @@ static ssize_t store_sockfd(struct device *dev, struct device_attribute *attr,
         struct stub_device *sdev = dev_get_drvdata(dev);
         int sockfd = 0;
         struct socket *socket;
-        ssize_t err = -EINVAL;
         int rv;
 
         if (!sdev) {
@@ -99,6 +98,7 @@ static ssize_t store_sockfd(struct device *dev, struct device_attribute *attr,
                 return -EINVAL;
 
         if (sockfd != -1) {
+                int err;
                 dev_info(dev, "stub up\n");
 
                 spin_lock_irq(&sdev->ud.lock);
@@ -108,7 +108,7 @@ static ssize_t store_sockfd(struct device *dev, struct device_attribute *attr,
                         goto err;
                 }
 
-                socket = sockfd_to_socket(sockfd);
+                socket = sockfd_lookup(sockfd, &err);
                 if (!socket)
                         goto err;
 
@@ -141,7 +141,7 @@ static ssize_t store_sockfd(struct device *dev, struct device_attribute *attr,
 
 err:
         spin_unlock_irq(&sdev->ud.lock);
-        return err;
+        return -EINVAL;
 }
 static DEVICE_ATTR(usbip_sockfd, S_IWUSR, NULL, store_sockfd);
 
@@ -211,7 +211,7 @@ static void stub_shutdown_connection(struct usbip_device *ud)
          * not touch NULL socket.
          */
         if (ud->tcp_socket) {
-                fput(ud->tcp_socket->file);
+                sockfd_put(ud->tcp_socket);
                 ud->tcp_socket = NULL;
         }
 
diff --git a/drivers/staging/usbip/usbip_common.c b/drivers/staging/usbip/usbip_common.c
index 184fa70365db..facaaf003f19 100644
--- a/drivers/staging/usbip/usbip_common.c
+++ b/drivers/staging/usbip/usbip_common.c
@@ -382,31 +382,6 @@ err:
 }
 EXPORT_SYMBOL_GPL(usbip_recv);
 
-struct socket *sockfd_to_socket(unsigned int sockfd)
-{
-        struct socket *socket;
-        struct file *file;
-        struct inode *inode;
-
-        file = fget(sockfd);
-        if (!file) {
-                pr_err("invalid sockfd\n");
-                return NULL;
-        }
-
-        inode = file_inode(file);
-
-        if (!inode || !S_ISSOCK(inode->i_mode)) {
-                fput(file);
-                return NULL;
-        }
-
-        socket = SOCKET_I(inode);
-
-        return socket;
-}
-EXPORT_SYMBOL_GPL(sockfd_to_socket);
-
 /* there may be more cases to tweak the flags. */
 static unsigned int tweak_transfer_flags(unsigned int flags)
 {
diff --git a/drivers/staging/usbip/usbip_common.h b/drivers/staging/usbip/usbip_common.h
index 732fb636a1e5..f555d834f134 100644
--- a/drivers/staging/usbip/usbip_common.h
+++ b/drivers/staging/usbip/usbip_common.h
@@ -299,7 +299,6 @@ void usbip_dump_urb(struct urb *purb);
 void usbip_dump_header(struct usbip_header *pdu);
 
 int usbip_recv(struct socket *sock, void *buf, int size);
-struct socket *sockfd_to_socket(unsigned int sockfd);
 
 void usbip_pack_pdu(struct usbip_header *pdu, struct urb *urb, int cmd,
                     int pack);
diff --git a/drivers/staging/usbip/vhci_hcd.c b/drivers/staging/usbip/vhci_hcd.c
index 1e84577230ef..70e17551943d 100644
--- a/drivers/staging/usbip/vhci_hcd.c
+++ b/drivers/staging/usbip/vhci_hcd.c
@@ -788,7 +788,7 @@ static void vhci_shutdown_connection(struct usbip_device *ud)
 
         /* active connection is closed */
         if (vdev->ud.tcp_socket) {
-                fput(vdev->ud.tcp_socket->file);
+                sockfd_put(vdev->ud.tcp_socket);
                 vdev->ud.tcp_socket = NULL;
         }
         pr_info("release socket\n");
@@ -835,7 +835,7 @@ static void vhci_device_reset(struct usbip_device *ud)
         vdev->udev = NULL;
 
         if (ud->tcp_socket) {
-                fput(ud->tcp_socket->file);
+                sockfd_put(ud->tcp_socket);
                 ud->tcp_socket = NULL;
         }
         ud->status = VDEV_ST_NULL;
diff --git a/drivers/staging/usbip/vhci_sysfs.c b/drivers/staging/usbip/vhci_sysfs.c
index e0980324fb03..47bddcdde0a6 100644
--- a/drivers/staging/usbip/vhci_sysfs.c
+++ b/drivers/staging/usbip/vhci_sysfs.c
@@ -176,6 +176,7 @@ static ssize_t store_attach(struct device *dev, struct device_attribute *attr,
         struct socket *socket;
         int sockfd = 0;
         __u32 rhport = 0, devid = 0, speed = 0;
+        int err;
 
         /*
          * @rhport: port number of vhci_hcd
@@ -194,8 +195,7 @@ static ssize_t store_attach(struct device *dev, struct device_attribute *attr,
                 return -EINVAL;
 
         /* Extract socket from fd. */
-        /* The correct way to clean this up is to fput(socket->file). */
-        socket = sockfd_to_socket(sockfd);
+        socket = sockfd_lookup(sockfd, &err);
         if (!socket)
                 return -EINVAL;
 
@@ -211,7 +211,7 @@ static ssize_t store_attach(struct device *dev, struct device_attribute *attr,
                 spin_unlock(&vdev->ud.lock);
                 spin_unlock(&the_controller->lock);
 
-                fput(socket->file);
+                sockfd_put(socket);
 
                 dev_err(dev, "port %d already used\n", rhport);
                 return -EINVAL;
diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c
index b83ec378d04f..78cab13bbb1b 100644
--- a/drivers/target/iscsi/iscsi_target.c
+++ b/drivers/target/iscsi/iscsi_target.c
@@ -499,6 +499,23 @@ static int iscsit_queue_rsp(struct iscsi_conn *conn, struct iscsi_cmd *cmd)
         return 0;
 }
 
+static void iscsit_aborted_task(struct iscsi_conn *conn, struct iscsi_cmd *cmd)
+{
+        bool scsi_cmd = (cmd->iscsi_opcode == ISCSI_OP_SCSI_CMD);
+
+        spin_lock_bh(&conn->cmd_lock);
+        if (!list_empty(&cmd->i_conn_node))
+                list_del_init(&cmd->i_conn_node);
+        spin_unlock_bh(&conn->cmd_lock);
+
+        __iscsit_free_cmd(cmd, scsi_cmd, true);
+}
+
+static enum target_prot_op iscsit_get_sup_prot_ops(struct iscsi_conn *conn)
+{
+        return TARGET_PROT_NORMAL;
+}
+
 static struct iscsit_transport iscsi_target_transport = {
         .name                   = "iSCSI/TCP",
         .transport_type         = ISCSI_TCP,
@@ -513,6 +530,8 @@ static struct iscsit_transport iscsi_target_transport = {
         .iscsit_response_queue  = iscsit_response_queue,
         .iscsit_queue_data_in   = iscsit_queue_rsp,
         .iscsit_queue_status    = iscsit_queue_rsp,
+        .iscsit_aborted_task    = iscsit_aborted_task,
+        .iscsit_get_sup_prot_ops = iscsit_get_sup_prot_ops,
 };
 
 static int __init iscsi_target_init_module(void)
@@ -1503,6 +1522,16 @@ int iscsit_setup_nop_out(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
 {
         u32 payload_length = ntoh24(hdr->dlength);
 
+        if (!(hdr->flags & ISCSI_FLAG_CMD_FINAL)) {
+                pr_err("NopOUT Flag's, Left Most Bit not set, protocol error.\n");
+                if (!cmd)
+                        return iscsit_add_reject(conn, ISCSI_REASON_PROTOCOL_ERROR,
+                                                 (unsigned char *)hdr);
+                
+                return iscsit_reject_cmd(cmd, ISCSI_REASON_PROTOCOL_ERROR,
+                                         (unsigned char *)hdr);
+        }
+
         if (hdr->itt == RESERVED_ITT && !(hdr->opcode & ISCSI_OP_IMMEDIATE)) {
                 pr_err("NOPOUT ITT is reserved, but Immediate Bit is"
                         " not set, protocol error.\n");
@@ -2468,6 +2497,7 @@ static void iscsit_build_conn_drop_async_message(struct iscsi_conn *conn)
 {
         struct iscsi_cmd *cmd;
         struct iscsi_conn *conn_p;
+        bool found = false;
 
         /*
          * Only send a Asynchronous Message on connections whos network
@@ -2476,11 +2506,12 @@ static void iscsit_build_conn_drop_async_message(struct iscsi_conn *conn)
         list_for_each_entry(conn_p, &conn->sess->sess_conn_list, conn_list) {
                 if (conn_p->conn_state == TARG_CONN_STATE_LOGGED_IN) {
                         iscsit_inc_conn_usage_count(conn_p);
+                        found = true;
                         break;
                 }
         }
 
-        if (!conn_p)
+        if (!found)
                 return;
 
         cmd = iscsit_allocate_cmd(conn_p, TASK_RUNNING);
diff --git a/drivers/target/iscsi/iscsi_target_configfs.c b/drivers/target/iscsi/iscsi_target_configfs.c
index 1c0088fe9e99..ae03f3e5de1e 100644
--- a/drivers/target/iscsi/iscsi_target_configfs.c
+++ b/drivers/target/iscsi/iscsi_target_configfs.c
@@ -1052,6 +1052,11 @@ TPG_ATTR(demo_mode_discovery, S_IRUGO | S_IWUSR);
  */
 DEF_TPG_ATTRIB(default_erl);
 TPG_ATTR(default_erl, S_IRUGO | S_IWUSR);
+/*
+ * Define iscsi_tpg_attrib_s_t10_pi
+ */
+DEF_TPG_ATTRIB(t10_pi);
+TPG_ATTR(t10_pi, S_IRUGO | S_IWUSR);
 
 static struct configfs_attribute *lio_target_tpg_attrib_attrs[] = {
         &iscsi_tpg_attrib_authentication.attr,
@@ -1064,6 +1069,7 @@ static struct configfs_attribute *lio_target_tpg_attrib_attrs[] = {
         &iscsi_tpg_attrib_prod_mode_write_protect.attr,
         &iscsi_tpg_attrib_demo_mode_discovery.attr,
         &iscsi_tpg_attrib_default_erl.attr,
+        &iscsi_tpg_attrib_t10_pi.attr,
         NULL,
 };
 
@@ -1815,6 +1821,13 @@ static void lio_queue_tm_rsp(struct se_cmd *se_cmd)
         iscsit_add_cmd_to_response_queue(cmd, cmd->conn, cmd->i_state);
 }
 
+static void lio_aborted_task(struct se_cmd *se_cmd)
+{
+        struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
+
+        cmd->conn->conn_transport->iscsit_aborted_task(cmd->conn, cmd);
+}
+
 static char *lio_tpg_get_endpoint_wwn(struct se_portal_group *se_tpg)
 {
         struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
@@ -1999,6 +2012,7 @@ int iscsi_target_register_configfs(void)
         fabric->tf_ops.queue_data_in = &lio_queue_data_in;
         fabric->tf_ops.queue_status = &lio_queue_status;
         fabric->tf_ops.queue_tm_rsp = &lio_queue_tm_rsp;
+        fabric->tf_ops.aborted_task = &lio_aborted_task;
         /*
          * Setup function pointers for generic logic in target_core_fabric_configfs.c
          */
diff --git a/drivers/target/iscsi/iscsi_target_core.h b/drivers/target/iscsi/iscsi_target_core.h
index 48f7b3bf4e8c..6960f22909ae 100644
--- a/drivers/target/iscsi/iscsi_target_core.h
+++ b/drivers/target/iscsi/iscsi_target_core.h
@@ -58,7 +58,8 @@
 #define TA_DEMO_MODE_DISCOVERY          1
 #define TA_DEFAULT_ERL                  0
 #define TA_CACHE_CORE_NPS               0
-
+/* T10 protection information disabled by default */
+#define TA_DEFAULT_T10_PI               0
 
 #define ISCSI_IOV_DATA_BUFFER           5
 
@@ -556,7 +557,7 @@ struct iscsi_conn {
         struct completion       rx_half_close_comp;
         /* socket used by this connection */
         struct socket           *sock;
-        void                    (*orig_data_ready)(struct sock *, int);
+        void                    (*orig_data_ready)(struct sock *);
         void                    (*orig_state_change)(struct sock *);
 #define LOGIN_FLAGS_READ_ACTIVE         1
 #define LOGIN_FLAGS_CLOSED              2
@@ -765,6 +766,7 @@ struct iscsi_tpg_attrib {
         u32                     prod_mode_write_protect;
         u32                     demo_mode_discovery;
         u32                     default_erl;
+        u8                      t10_pi;
         struct iscsi_portal_group *tpg;
 };
 
@@ -787,6 +789,7 @@ struct iscsi_np {
         void                    *np_context;
         struct iscsit_transport *np_transport;
         struct list_head        np_list;
+        struct iscsi_tpg_np     *tpg_np;
 } ____cacheline_aligned;
 
 struct iscsi_tpg_np {
diff --git a/drivers/target/iscsi/iscsi_target_login.c b/drivers/target/iscsi/iscsi_target_login.c
index e29279e6b577..8739b98f6f93 100644
--- a/drivers/target/iscsi/iscsi_target_login.c
+++ b/drivers/target/iscsi/iscsi_target_login.c
@@ -259,6 +259,7 @@ static int iscsi_login_zero_tsih_s1(
 {
         struct iscsi_session *sess = NULL;
         struct iscsi_login_req *pdu = (struct iscsi_login_req *)buf;
+        enum target_prot_op sup_pro_ops;
         int ret;
 
         sess = kzalloc(sizeof(struct iscsi_session), GFP_KERNEL);
@@ -320,8 +321,9 @@ static int iscsi_login_zero_tsih_s1(
                 kfree(sess);
                 return -ENOMEM;
         }
+        sup_pro_ops = conn->conn_transport->iscsit_get_sup_prot_ops(conn);
 
-        sess->se_sess = transport_init_session();
+        sess->se_sess = transport_init_session(sup_pro_ops);
         if (IS_ERR(sess->se_sess)) {
                 iscsit_tx_login_rsp(conn, ISCSI_STATUS_CLS_TARGET_ERR,
                                 ISCSI_LOGIN_STATUS_NO_RESOURCES);
diff --git a/drivers/target/iscsi/iscsi_target_nego.c b/drivers/target/iscsi/iscsi_target_nego.c
index 582ba84075ec..75b685960e80 100644
--- a/drivers/target/iscsi/iscsi_target_nego.c
+++ b/drivers/target/iscsi/iscsi_target_nego.c
@@ -375,7 +375,7 @@ static int iscsi_target_do_tx_login_io(struct iscsi_conn *conn, struct iscsi_log
         return 0;
 }
 
-static void iscsi_target_sk_data_ready(struct sock *sk, int count)
+static void iscsi_target_sk_data_ready(struct sock *sk)
 {
         struct iscsi_conn *conn = sk->sk_user_data;
         bool rc;
diff --git a/drivers/target/iscsi/iscsi_target_tpg.c b/drivers/target/iscsi/iscsi_target_tpg.c
index 44a5471de00f..eb96b20dc09e 100644
--- a/drivers/target/iscsi/iscsi_target_tpg.c
+++ b/drivers/target/iscsi/iscsi_target_tpg.c
@@ -225,6 +225,7 @@ static void iscsit_set_default_tpg_attribs(struct iscsi_portal_group *tpg)
         a->prod_mode_write_protect = TA_PROD_MODE_WRITE_PROTECT;
         a->demo_mode_discovery = TA_DEMO_MODE_DISCOVERY;
         a->default_erl = TA_DEFAULT_ERL;
+        a->t10_pi = TA_DEFAULT_T10_PI;
 }
 
 int iscsit_tpg_add_portal_group(struct iscsi_tiqn *tiqn, struct iscsi_portal_group *tpg)
@@ -500,6 +501,7 @@ struct iscsi_tpg_np *iscsit_tpg_add_network_portal(
         init_completion(&tpg_np->tpg_np_comp);
         kref_init(&tpg_np->tpg_np_kref);
         tpg_np->tpg_np          = np;
+        np->tpg_np              = tpg_np;
         tpg_np->tpg             = tpg;
 
         spin_lock(&tpg->tpg_np_lock);
@@ -858,3 +860,22 @@ int iscsit_ta_default_erl(
 
         return 0;
 }
+
+int iscsit_ta_t10_pi(
+        struct iscsi_portal_group *tpg,
+        u32 flag)
+{
+        struct iscsi_tpg_attrib *a = &tpg->tpg_attrib;
+
+        if ((flag != 0) && (flag != 1)) {
+                pr_err("Illegal value %d\n", flag);
+                return -EINVAL;
+        }
+
+        a->t10_pi = flag;
+        pr_debug("iSCSI_TPG[%hu] - T10 Protection information bit:"
+                " %s\n", tpg->tpgt, (a->t10_pi) ?
+                "ON" : "OFF");
+
+        return 0;
+}
diff --git a/drivers/target/iscsi/iscsi_target_tpg.h b/drivers/target/iscsi/iscsi_target_tpg.h
index 213c0fc7fdc9..0a182f2aa8a2 100644
--- a/drivers/target/iscsi/iscsi_target_tpg.h
+++ b/drivers/target/iscsi/iscsi_target_tpg.h
@@ -39,5 +39,6 @@ extern int iscsit_ta_demo_mode_write_protect(struct iscsi_portal_group *, u32);
 extern int iscsit_ta_prod_mode_write_protect(struct iscsi_portal_group *, u32);
 extern int iscsit_ta_demo_mode_discovery(struct iscsi_portal_group *, u32);
 extern int iscsit_ta_default_erl(struct iscsi_portal_group *, u32);
+extern int iscsit_ta_t10_pi(struct iscsi_portal_group *, u32);
 
 #endif /* ISCSI_TARGET_TPG_H */
diff --git a/drivers/target/iscsi/iscsi_target_util.c b/drivers/target/iscsi/iscsi_target_util.c
index e655b042ed18..53e157cb8c54 100644
--- a/drivers/target/iscsi/iscsi_target_util.c
+++ b/drivers/target/iscsi/iscsi_target_util.c
@@ -705,8 +705,8 @@ void iscsit_release_cmd(struct iscsi_cmd *cmd)
 }
 EXPORT_SYMBOL(iscsit_release_cmd);
 
-static void __iscsit_free_cmd(struct iscsi_cmd *cmd, bool scsi_cmd,
-                              bool check_queues)
+void __iscsit_free_cmd(struct iscsi_cmd *cmd, bool scsi_cmd,
+                       bool check_queues)
 {
         struct iscsi_conn *conn = cmd->conn;
 
diff --git a/drivers/target/iscsi/iscsi_target_util.h b/drivers/target/iscsi/iscsi_target_util.h
index 561a424d1980..a68508c4fec8 100644
--- a/drivers/target/iscsi/iscsi_target_util.h
+++ b/drivers/target/iscsi/iscsi_target_util.h
@@ -30,6 +30,7 @@ extern void iscsit_remove_cmd_from_tx_queues(struct iscsi_cmd *, struct iscsi_co
 extern bool iscsit_conn_all_queues_empty(struct iscsi_conn *);
 extern void iscsit_free_queue_reqs_for_conn(struct iscsi_conn *);
 extern void iscsit_release_cmd(struct iscsi_cmd *);
+extern void __iscsit_free_cmd(struct iscsi_cmd *, bool, bool);
 extern void iscsit_free_cmd(struct iscsi_cmd *, bool);
 extern int iscsit_check_session_usage_count(struct iscsi_session *);
 extern void iscsit_dec_session_usage_count(struct iscsi_session *);
diff --git a/drivers/target/loopback/tcm_loop.c b/drivers/target/loopback/tcm_loop.c
index fadad7c5f635..c886ad1c39fb 100644
--- a/drivers/target/loopback/tcm_loop.c
+++ b/drivers/target/loopback/tcm_loop.c
@@ -212,6 +212,10 @@ static void tcm_loop_submission_work(struct work_struct *work)
                 se_cmd->se_cmd_flags |= SCF_BIDI;
 
         }
+
+        if (!scsi_prot_sg_count(sc) && scsi_get_prot_op(sc) != SCSI_PROT_NORMAL)
+                se_cmd->prot_pto = true;
+
         rc = target_submit_cmd_map_sgls(se_cmd, tl_nexus->se_sess, sc->cmnd,
                         &tl_cmd->tl_sense_buf[0], tl_cmd->sc->device->lun,
                         scsi_bufflen(sc), tcm_loop_sam_attr(sc),
@@ -915,6 +919,11 @@ static void tcm_loop_queue_tm_rsp(struct se_cmd *se_cmd)
         wake_up(&tl_tmr->tl_tmr_wait);
 }
 
+static void tcm_loop_aborted_task(struct se_cmd *se_cmd)
+{
+        return;
+}
+
 static char *tcm_loop_dump_proto_id(struct tcm_loop_hba *tl_hba)
 {
         switch (tl_hba->tl_proto_id) {
@@ -1009,7 +1018,7 @@ static int tcm_loop_make_nexus(
         /*
          * Initialize the struct se_session pointer
          */
-        tl_nexus->se_sess = transport_init_session();
+        tl_nexus->se_sess = transport_init_session(TARGET_PROT_ALL);
         if (IS_ERR(tl_nexus->se_sess)) {
                 ret = PTR_ERR(tl_nexus->se_sess);
                 goto out;
@@ -1483,6 +1492,7 @@ static int tcm_loop_register_configfs(void)
         fabric->tf_ops.queue_data_in = &tcm_loop_queue_data_in;
         fabric->tf_ops.queue_status = &tcm_loop_queue_status;
         fabric->tf_ops.queue_tm_rsp = &tcm_loop_queue_tm_rsp;
+        fabric->tf_ops.aborted_task = &tcm_loop_aborted_task;
 
         /*
          * Setup function pointers for generic logic in target_core_fabric_configfs.c
diff --git a/drivers/target/sbp/sbp_target.c b/drivers/target/sbp/sbp_target.c
index 24884cac19ce..e7e93727553c 100644
--- a/drivers/target/sbp/sbp_target.c
+++ b/drivers/target/sbp/sbp_target.c
@@ -210,7 +210,7 @@ static struct sbp_session *sbp_session_create(
                 return ERR_PTR(-ENOMEM);
         }
 
-        sess->se_sess = transport_init_session();
+        sess->se_sess = transport_init_session(TARGET_PROT_NORMAL);
         if (IS_ERR(sess->se_sess)) {
                 pr_err("failed to init se_session\n");
 
@@ -1846,6 +1846,11 @@ static void sbp_queue_tm_rsp(struct se_cmd *se_cmd)
 {
 }
 
+static void sbp_aborted_task(struct se_cmd *se_cmd)
+{
+        return;
+}
+
 static int sbp_check_stop_free(struct se_cmd *se_cmd)
 {
         struct sbp_target_request *req = container_of(se_cmd,
@@ -2526,6 +2531,7 @@ static struct target_core_fabric_ops sbp_ops = {
         .queue_data_in                  = sbp_queue_data_in,
         .queue_status                   = sbp_queue_status,
         .queue_tm_rsp                   = sbp_queue_tm_rsp,
+        .aborted_task                   = sbp_aborted_task,
         .check_stop_free                = sbp_check_stop_free,
 
         .fabric_make_wwn                = sbp_make_tport,
diff --git a/drivers/target/target_core_alua.c b/drivers/target/target_core_alua.c
index c3d9df6aaf5f..fcbe6125b73e 100644
--- a/drivers/target/target_core_alua.c
+++ b/drivers/target/target_core_alua.c
@@ -455,11 +455,26 @@ out:
         return rc;
 }
 
-static inline int core_alua_state_nonoptimized(
+static inline void set_ascq(struct se_cmd *cmd, u8 alua_ascq)
+{
+        /*
+         * Set SCSI additional sense code (ASC) to 'LUN Not Accessible';
+         * The ALUA additional sense code qualifier (ASCQ) is determined
+         * by the ALUA primary or secondary access state..
+         */
+        pr_debug("[%s]: ALUA TG Port not available, "
+                "SenseKey: NOT_READY, ASC/ASCQ: "
+                "0x04/0x%02x\n",
+                cmd->se_tfo->get_fabric_name(), alua_ascq);
+
+        cmd->scsi_asc = 0x04;
+        cmd->scsi_ascq = alua_ascq;
+}
+
+static inline void core_alua_state_nonoptimized(
         struct se_cmd *cmd,
         unsigned char *cdb,
-        int nonop_delay_msecs,
-        u8 *alua_ascq)
+        int nonop_delay_msecs)
 {
         /*
          * Set SCF_ALUA_NON_OPTIMIZED here, this value will be checked
@@ -468,13 +483,11 @@ static inline int core_alua_state_nonoptimized(
          */
         cmd->se_cmd_flags |= SCF_ALUA_NON_OPTIMIZED;
         cmd->alua_nonop_delay = nonop_delay_msecs;
-        return 0;
 }
 
 static inline int core_alua_state_lba_dependent(
         struct se_cmd *cmd,
-        struct t10_alua_tg_pt_gp *tg_pt_gp,
-        u8 *alua_ascq)
+        struct t10_alua_tg_pt_gp *tg_pt_gp)
 {
         struct se_device *dev = cmd->se_dev;
         u64 segment_size, segment_mult, sectors, lba;
@@ -520,7 +533,7 @@ static inline int core_alua_state_lba_dependent(
                 }
                 if (!cur_map) {
                         spin_unlock(&dev->t10_alua.lba_map_lock);
-                        *alua_ascq = ASCQ_04H_ALUA_TG_PT_UNAVAILABLE;
+                        set_ascq(cmd, ASCQ_04H_ALUA_TG_PT_UNAVAILABLE);
                         return 1;
                 }
                 list_for_each_entry(map_mem, &cur_map->lba_map_mem_list,
@@ -531,11 +544,11 @@ static inline int core_alua_state_lba_dependent(
                         switch(map_mem->lba_map_mem_alua_state) {
                         case ALUA_ACCESS_STATE_STANDBY:
                                 spin_unlock(&dev->t10_alua.lba_map_lock);
-                                *alua_ascq = ASCQ_04H_ALUA_TG_PT_STANDBY;
+                                set_ascq(cmd, ASCQ_04H_ALUA_TG_PT_STANDBY);
                                 return 1;
                         case ALUA_ACCESS_STATE_UNAVAILABLE:
                                 spin_unlock(&dev->t10_alua.lba_map_lock);
-                                *alua_ascq = ASCQ_04H_ALUA_TG_PT_UNAVAILABLE;
+                                set_ascq(cmd, ASCQ_04H_ALUA_TG_PT_UNAVAILABLE);
                                 return 1;
                         default:
                                 break;
@@ -548,8 +561,7 @@ static inline int core_alua_state_lba_dependent(
 
 static inline int core_alua_state_standby(
         struct se_cmd *cmd,
-        unsigned char *cdb,
-        u8 *alua_ascq)
+        unsigned char *cdb)
 {
         /*
          * Allowed CDBs for ALUA_ACCESS_STATE_STANDBY as defined by
@@ -570,7 +582,7 @@ static inline int core_alua_state_standby(
                 case MI_REPORT_TARGET_PGS:
                         return 0;
                 default:
-                        *alua_ascq = ASCQ_04H_ALUA_TG_PT_STANDBY;
+                        set_ascq(cmd, ASCQ_04H_ALUA_TG_PT_STANDBY);
                         return 1;
                 }
         case MAINTENANCE_OUT:
@@ -578,7 +590,7 @@ static inline int core_alua_state_standby(
                 case MO_SET_TARGET_PGS:
                         return 0;
                 default:
-                        *alua_ascq = ASCQ_04H_ALUA_TG_PT_STANDBY;
+                        set_ascq(cmd, ASCQ_04H_ALUA_TG_PT_STANDBY);
                         return 1;
                 }
         case REQUEST_SENSE:
@@ -588,7 +600,7 @@ static inline int core_alua_state_standby(
         case WRITE_BUFFER:
                 return 0;
         default:
-                *alua_ascq = ASCQ_04H_ALUA_TG_PT_STANDBY;
+                set_ascq(cmd, ASCQ_04H_ALUA_TG_PT_STANDBY);
                 return 1;
         }
 
@@ -597,8 +609,7 @@ static inline int core_alua_state_standby(
 
 static inline int core_alua_state_unavailable(
         struct se_cmd *cmd,
-        unsigned char *cdb,
-        u8 *alua_ascq)
+        unsigned char *cdb)
 {
         /*
          * Allowed CDBs for ALUA_ACCESS_STATE_UNAVAILABLE as defined by
@@ -613,7 +624,7 @@ static inline int core_alua_state_unavailable(
                 case MI_REPORT_TARGET_PGS:
                         return 0;
                 default:
-                        *alua_ascq = ASCQ_04H_ALUA_TG_PT_UNAVAILABLE;
+                        set_ascq(cmd, ASCQ_04H_ALUA_TG_PT_UNAVAILABLE);
                         return 1;
                 }
         case MAINTENANCE_OUT:
@@ -621,7 +632,7 @@ static inline int core_alua_state_unavailable(
                 case MO_SET_TARGET_PGS:
                         return 0;
                 default:
-                        *alua_ascq = ASCQ_04H_ALUA_TG_PT_UNAVAILABLE;
+                        set_ascq(cmd, ASCQ_04H_ALUA_TG_PT_UNAVAILABLE);
                         return 1;
                 }
         case REQUEST_SENSE:
@@ -629,7 +640,7 @@ static inline int core_alua_state_unavailable(
         case WRITE_BUFFER:
                 return 0;
         default:
-                *alua_ascq = ASCQ_04H_ALUA_TG_PT_UNAVAILABLE;
+                set_ascq(cmd, ASCQ_04H_ALUA_TG_PT_UNAVAILABLE);
                 return 1;
         }
 
@@ -638,8 +649,7 @@ static inline int core_alua_state_unavailable(
 
 static inline int core_alua_state_transition(
         struct se_cmd *cmd,
-        unsigned char *cdb,
-        u8 *alua_ascq)
+        unsigned char *cdb)
 {
         /*
          * Allowed CDBs for ALUA_ACCESS_STATE_TRANSITION as defined by
@@ -654,7 +664,7 @@ static inline int core_alua_state_transition(
                 case MI_REPORT_TARGET_PGS:
                         return 0;
                 default:
-                        *alua_ascq = ASCQ_04H_ALUA_STATE_TRANSITION;
+                        set_ascq(cmd, ASCQ_04H_ALUA_STATE_TRANSITION);
                         return 1;
                 }
         case REQUEST_SENSE:
@@ -662,7 +672,7 @@ static inline int core_alua_state_transition(
         case WRITE_BUFFER:
                 return 0;
         default:
-                *alua_ascq = ASCQ_04H_ALUA_STATE_TRANSITION;
+                set_ascq(cmd, ASCQ_04H_ALUA_STATE_TRANSITION);
                 return 1;
         }
 
@@ -684,8 +694,6 @@ target_alua_state_check(struct se_cmd *cmd)
         struct t10_alua_tg_pt_gp *tg_pt_gp;
         struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem;
         int out_alua_state, nonop_delay_msecs;
-        u8 alua_ascq;
-        int ret;
 
         if (dev->se_hba->hba_flags & HBA_FLAGS_INTERNAL_USE)
                 return 0;
@@ -701,9 +709,8 @@ target_alua_state_check(struct se_cmd *cmd)
         if (atomic_read(&port->sep_tg_pt_secondary_offline)) {
                 pr_debug("ALUA: Got secondary offline status for local"
                                 " target port\n");
-                alua_ascq = ASCQ_04H_ALUA_OFFLINE;
-                ret = 1;
-                goto out;
+                set_ascq(cmd, ASCQ_04H_ALUA_OFFLINE);
+                return TCM_CHECK_CONDITION_NOT_READY;
         }
          /*
          * Second, obtain the struct t10_alua_tg_pt_gp_member pointer to the
@@ -731,20 +738,23 @@ target_alua_state_check(struct se_cmd *cmd)
 
         switch (out_alua_state) {
         case ALUA_ACCESS_STATE_ACTIVE_NON_OPTIMIZED:
-                ret = core_alua_state_nonoptimized(cmd, cdb,
-                                        nonop_delay_msecs, &alua_ascq);
+                core_alua_state_nonoptimized(cmd, cdb, nonop_delay_msecs);
                 break;
         case ALUA_ACCESS_STATE_STANDBY:
-                ret = core_alua_state_standby(cmd, cdb, &alua_ascq);
+                if (core_alua_state_standby(cmd, cdb))
+                        return TCM_CHECK_CONDITION_NOT_READY;
                 break;
         case ALUA_ACCESS_STATE_UNAVAILABLE:
-                ret = core_alua_state_unavailable(cmd, cdb, &alua_ascq);
+                if (core_alua_state_unavailable(cmd, cdb))
+                        return TCM_CHECK_CONDITION_NOT_READY;
                 break;
         case ALUA_ACCESS_STATE_TRANSITION:
-                ret = core_alua_state_transition(cmd, cdb, &alua_ascq);
+                if (core_alua_state_transition(cmd, cdb))
+                        return TCM_CHECK_CONDITION_NOT_READY;
                 break;
         case ALUA_ACCESS_STATE_LBA_DEPENDENT:
-                ret = core_alua_state_lba_dependent(cmd, tg_pt_gp, &alua_ascq);
+                if (core_alua_state_lba_dependent(cmd, tg_pt_gp))
+                        return TCM_CHECK_CONDITION_NOT_READY;
                 break;
         /*
          * OFFLINE is a secondary ALUA target port group access state, that is
@@ -757,23 +767,6 @@ target_alua_state_check(struct se_cmd *cmd)
                 return TCM_INVALID_CDB_FIELD;
         }
 
-out:
-        if (ret > 0) {
-                /*
-                 * Set SCSI additional sense code (ASC) to 'LUN Not Accessible';
-                 * The ALUA additional sense code qualifier (ASCQ) is determined
-                 * by the ALUA primary or secondary access state..
-                 */
-                pr_debug("[%s]: ALUA TG Port not available, "
-                        "SenseKey: NOT_READY, ASC/ASCQ: "
-                        "0x04/0x%02x\n",
-                        cmd->se_tfo->get_fabric_name(), alua_ascq);
-
-                cmd->scsi_asc = 0x04;
-                cmd->scsi_ascq = alua_ascq;
-                return TCM_CHECK_CONDITION_NOT_READY;
-        }
-
         return 0;
 }
 
diff --git a/drivers/target/target_core_configfs.c b/drivers/target/target_core_configfs.c
index f0e85b119692..60a9ae6df763 100644
--- a/drivers/target/target_core_configfs.c
+++ b/drivers/target/target_core_configfs.c
@@ -457,6 +457,10 @@ static int target_fabric_tf_ops_check(
                 pr_err("Missing tfo->queue_tm_rsp()\n");
                 return -EINVAL;
         }
+        if (!tfo->aborted_task) {
+                pr_err("Missing tfo->aborted_task()\n");
+                return -EINVAL;
+        }
         /*
          * We at least require tfo->fabric_make_wwn(), tfo->fabric_drop_wwn()
          * tfo->fabric_make_tpg() and tfo->fabric_drop_tpg() in
diff --git a/drivers/target/target_core_file.c b/drivers/target/target_core_file.c
index cf991a91a8a9..7d6cddaec525 100644
--- a/drivers/target/target_core_file.c
+++ b/drivers/target/target_core_file.c
@@ -854,25 +854,6 @@ static int fd_init_prot(struct se_device *dev)
         return 0;
 }
 
-static void fd_init_format_buf(struct se_device *dev, unsigned char *buf,
-                               u32 unit_size, u32 *ref_tag, u16 app_tag,
-                               bool inc_reftag)
-{
-        unsigned char *p = buf;
-        int i;
-
-        for (i = 0; i < unit_size; i += dev->prot_length) {
-                *((u16 *)&p[0]) = 0xffff;
-                *((__be16 *)&p[2]) = cpu_to_be16(app_tag);
-                *((__be32 *)&p[4]) = cpu_to_be32(*ref_tag);
-
-                if (inc_reftag)
-                        (*ref_tag)++;
-
-                p += dev->prot_length;
-        }
-}
-
 static int fd_format_prot(struct se_device *dev)
 {
         struct fd_dev *fd_dev = FD_DEV(dev);
@@ -880,10 +861,8 @@ static int fd_format_prot(struct se_device *dev)
         sector_t prot_length, prot;
         unsigned char *buf;
         loff_t pos = 0;
-        u32 ref_tag = 0;
         int unit_size = FDBD_FORMAT_UNIT_SIZE * dev->dev_attrib.block_size;
         int rc, ret = 0, size, len;
-        bool inc_reftag = false;
 
         if (!dev->dev_attrib.pi_prot_type) {
                 pr_err("Unable to format_prot while pi_prot_type == 0\n");
@@ -894,37 +873,20 @@ static int fd_format_prot(struct se_device *dev)
                 return -ENODEV;
         }
 
-        switch (dev->dev_attrib.pi_prot_type) {
-        case TARGET_DIF_TYPE3_PROT:
-                ref_tag = 0xffffffff;
-                break;
-        case TARGET_DIF_TYPE2_PROT:
-        case TARGET_DIF_TYPE1_PROT:
-                inc_reftag = true;
-                break;
-        default:
-                break;
-        }
-
         buf = vzalloc(unit_size);
         if (!buf) {
                 pr_err("Unable to allocate FILEIO prot buf\n");
                 return -ENOMEM;
         }
-
         prot_length = (dev->transport->get_blocks(dev) + 1) * dev->prot_length;
         size = prot_length;
 
         pr_debug("Using FILEIO prot_length: %llu\n",
                  (unsigned long long)prot_length);
 
+        memset(buf, 0xff, unit_size);
         for (prot = 0; prot < prot_length; prot += unit_size) {
-
-                fd_init_format_buf(dev, buf, unit_size, &ref_tag, 0xffff,
-                                   inc_reftag);
-
                 len = min(unit_size, size);
-
                 rc = kernel_write(prot_fd, buf, len, pos);
                 if (rc != len) {
                         pr_err("vfs_write to prot file failed: %d\n", rc);
diff --git a/drivers/target/target_core_iblock.c b/drivers/target/target_core_iblock.c
index 554d4f75a75a..9e0232cca92e 100644
--- a/drivers/target/target_core_iblock.c
+++ b/drivers/target/target_core_iblock.c
@@ -203,10 +203,9 @@ static void iblock_free_device(struct se_device *dev)
 
         if (ib_dev->ibd_bd != NULL)
                 blkdev_put(ib_dev->ibd_bd, FMODE_WRITE|FMODE_READ|FMODE_EXCL);
-        if (ib_dev->ibd_bio_set != NULL) {
-                bioset_integrity_free(ib_dev->ibd_bio_set);
+        if (ib_dev->ibd_bio_set != NULL)
                 bioset_free(ib_dev->ibd_bio_set);
-        }
+
         kfree(ib_dev);
 }
 
diff --git a/drivers/target/target_core_rd.c b/drivers/target/target_core_rd.c
index 66a5aba5a0d9..b920db3388cd 100644
--- a/drivers/target/target_core_rd.c
+++ b/drivers/target/target_core_rd.c
@@ -242,7 +242,7 @@ static void rd_release_prot_space(struct rd_dev *rd_dev)
         rd_dev->sg_prot_count = 0;
 }
 
-static int rd_build_prot_space(struct rd_dev *rd_dev, int prot_length)
+static int rd_build_prot_space(struct rd_dev *rd_dev, int prot_length, int block_size)
 {
         struct rd_dev_sg_table *sg_table;
         u32 total_sg_needed, sg_tables;
@@ -252,8 +252,13 @@ static int rd_build_prot_space(struct rd_dev *rd_dev, int prot_length)
 
         if (rd_dev->rd_flags & RDF_NULLIO)
                 return 0;
-
-        total_sg_needed = rd_dev->rd_page_count / prot_length;
+        /*
+         * prot_length=8byte dif data
+         * tot sg needed = rd_page_count * (PGSZ/block_size) *
+         *                 (prot_length/block_size) + pad
+         * PGSZ canceled each other.
+         */
+        total_sg_needed = (rd_dev->rd_page_count * prot_length / block_size) + 1;
 
         sg_tables = (total_sg_needed / max_sg_per_table) + 1;
 
@@ -606,7 +611,8 @@ static int rd_init_prot(struct se_device *dev)
         if (!dev->dev_attrib.pi_prot_type)
                 return 0;
 
-        return rd_build_prot_space(rd_dev, dev->prot_length);
+        return rd_build_prot_space(rd_dev, dev->prot_length,
+                                   dev->dev_attrib.block_size);
 }
 
 static void rd_free_prot(struct se_device *dev)
diff --git a/drivers/target/target_core_sbc.c b/drivers/target/target_core_sbc.c
index 77e6531fb0a1..e0229592ec55 100644
--- a/drivers/target/target_core_sbc.c
+++ b/drivers/target/target_core_sbc.c
@@ -89,6 +89,7 @@ static sense_reason_t
 sbc_emulate_readcapacity_16(struct se_cmd *cmd)
 {
         struct se_device *dev = cmd->se_dev;
+        struct se_session *sess = cmd->se_sess;
         unsigned char *rbuf;
         unsigned char buf[32];
         unsigned long long blocks = dev->transport->get_blocks(dev);
@@ -109,8 +110,10 @@ sbc_emulate_readcapacity_16(struct se_cmd *cmd)
         /*
          * Set P_TYPE and PROT_EN bits for DIF support
          */
-        if (dev->dev_attrib.pi_prot_type)
-                buf[12] = (dev->dev_attrib.pi_prot_type - 1) << 1 | 0x1;
+        if (sess->sup_prot_ops & (TARGET_PROT_DIN_PASS | TARGET_PROT_DOUT_PASS)) {
+                if (dev->dev_attrib.pi_prot_type)
+                        buf[12] = (dev->dev_attrib.pi_prot_type - 1) << 1 | 0x1;
+        }
 
         if (dev->transport->get_lbppbe)
                 buf[13] = dev->transport->get_lbppbe(dev) & 0x0f;
@@ -425,13 +428,14 @@ static sense_reason_t compare_and_write_callback(struct se_cmd *cmd)
                 goto out;
         }
 
-        write_sg = kzalloc(sizeof(struct scatterlist) * cmd->t_data_nents,
+        write_sg = kmalloc(sizeof(struct scatterlist) * cmd->t_data_nents,
                            GFP_KERNEL);
         if (!write_sg) {
                 pr_err("Unable to allocate compare_and_write sg\n");
                 ret = TCM_OUT_OF_RESOURCES;
                 goto out;
         }
+        sg_init_table(write_sg, cmd->t_data_nents);
         /*
          * Setup verify and write data payloads from total NumberLBAs.
          */
@@ -569,30 +573,85 @@ sbc_compare_and_write(struct se_cmd *cmd)
         return TCM_NO_SENSE;
 }
 
+static int
+sbc_set_prot_op_checks(u8 protect, enum target_prot_type prot_type,
+                       bool is_write, struct se_cmd *cmd)
+{
+        if (is_write) {
+                cmd->prot_op = protect ? TARGET_PROT_DOUT_PASS :
+                                         TARGET_PROT_DOUT_INSERT;
+                switch (protect) {
+                case 0x0:
+                case 0x3:
+                        cmd->prot_checks = 0;
+                        break;
+                case 0x1:
+                case 0x5:
+                        cmd->prot_checks = TARGET_DIF_CHECK_GUARD;
+                        if (prot_type == TARGET_DIF_TYPE1_PROT)
+                                cmd->prot_checks |= TARGET_DIF_CHECK_REFTAG;
+                        break;
+                case 0x2:
+                        if (prot_type == TARGET_DIF_TYPE1_PROT)
+                                cmd->prot_checks = TARGET_DIF_CHECK_REFTAG;
+                        break;
+                case 0x4:
+                        cmd->prot_checks = TARGET_DIF_CHECK_GUARD;
+                        break;
+                default:
+                        pr_err("Unsupported protect field %d\n", protect);
+                        return -EINVAL;
+                }
+        } else {
+                cmd->prot_op = protect ? TARGET_PROT_DIN_PASS :
+                                         TARGET_PROT_DIN_STRIP;
+                switch (protect) {
+                case 0x0:
+                case 0x1:
+                case 0x5:
+                        cmd->prot_checks = TARGET_DIF_CHECK_GUARD;
+                        if (prot_type == TARGET_DIF_TYPE1_PROT)
+                                cmd->prot_checks |= TARGET_DIF_CHECK_REFTAG;
+                        break;
+                case 0x2:
+                        if (prot_type == TARGET_DIF_TYPE1_PROT)
+                                cmd->prot_checks = TARGET_DIF_CHECK_REFTAG;
+                        break;
+                case 0x3:
+                        cmd->prot_checks = 0;
+                        break;
+                case 0x4:
+                        cmd->prot_checks = TARGET_DIF_CHECK_GUARD;
+                        break;
+                default:
+                        pr_err("Unsupported protect field %d\n", protect);
+                        return -EINVAL;
+                }
+        }
+
+        return 0;
+}
+
 static bool
 sbc_check_prot(struct se_device *dev, struct se_cmd *cmd, unsigned char *cdb,
-               u32 sectors)
+               u32 sectors, bool is_write)
 {
-        if (!cmd->t_prot_sg || !cmd->t_prot_nents)
+        u8 protect = cdb[1] >> 5;
+
+        if ((!cmd->t_prot_sg || !cmd->t_prot_nents) && cmd->prot_pto)
                 return true;
 
         switch (dev->dev_attrib.pi_prot_type) {
         case TARGET_DIF_TYPE3_PROT:
-                if (!(cdb[1] & 0xe0))
-                        return true;
-
                 cmd->reftag_seed = 0xffffffff;
                 break;
         case TARGET_DIF_TYPE2_PROT:
-                if (cdb[1] & 0xe0)
+                if (protect)
                         return false;
 
                 cmd->reftag_seed = cmd->t_task_lba;
                 break;
         case TARGET_DIF_TYPE1_PROT:
-                if (!(cdb[1] & 0xe0))
-                        return true;
-
                 cmd->reftag_seed = cmd->t_task_lba;
                 break;
         case TARGET_DIF_TYPE0_PROT:
@@ -600,9 +659,15 @@ sbc_check_prot(struct se_device *dev, struct se_cmd *cmd, unsigned char *cdb,
                 return true;
         }
 
+        if (sbc_set_prot_op_checks(protect, dev->dev_attrib.pi_prot_type,
+                                   is_write, cmd))
+                return false;
+
         cmd->prot_type = dev->dev_attrib.pi_prot_type;
         cmd->prot_length = dev->prot_length * sectors;
-        cmd->prot_handover = PROT_SEPERATED;
+        pr_debug("%s: prot_type=%d, prot_length=%d prot_op=%d prot_checks=%d\n",
+                 __func__, cmd->prot_type, cmd->prot_length,
+                 cmd->prot_op, cmd->prot_checks);
 
         return true;
 }
@@ -628,7 +693,7 @@ sbc_parse_cdb(struct se_cmd *cmd, struct sbc_ops *ops)
                 sectors = transport_get_sectors_10(cdb);
                 cmd->t_task_lba = transport_lba_32(cdb);
 
-                if (!sbc_check_prot(dev, cmd, cdb, sectors))
+                if (!sbc_check_prot(dev, cmd, cdb, sectors, false))
                         return TCM_UNSUPPORTED_SCSI_OPCODE;
 
                 cmd->se_cmd_flags |= SCF_SCSI_DATA_CDB;
@@ -639,7 +704,7 @@ sbc_parse_cdb(struct se_cmd *cmd, struct sbc_ops *ops)
                 sectors = transport_get_sectors_12(cdb);
                 cmd->t_task_lba = transport_lba_32(cdb);
 
-                if (!sbc_check_prot(dev, cmd, cdb, sectors))
+                if (!sbc_check_prot(dev, cmd, cdb, sectors, false))
                         return TCM_UNSUPPORTED_SCSI_OPCODE;
 
                 cmd->se_cmd_flags |= SCF_SCSI_DATA_CDB;
@@ -650,7 +715,7 @@ sbc_parse_cdb(struct se_cmd *cmd, struct sbc_ops *ops)
                 sectors = transport_get_sectors_16(cdb);
                 cmd->t_task_lba = transport_lba_64(cdb);
 
-                if (!sbc_check_prot(dev, cmd, cdb, sectors))
+                if (!sbc_check_prot(dev, cmd, cdb, sectors, false))
                         return TCM_UNSUPPORTED_SCSI_OPCODE;
 
                 cmd->se_cmd_flags |= SCF_SCSI_DATA_CDB;
@@ -669,7 +734,7 @@ sbc_parse_cdb(struct se_cmd *cmd, struct sbc_ops *ops)
                 sectors = transport_get_sectors_10(cdb);
                 cmd->t_task_lba = transport_lba_32(cdb);
 
-                if (!sbc_check_prot(dev, cmd, cdb, sectors))
+                if (!sbc_check_prot(dev, cmd, cdb, sectors, true))
                         return TCM_UNSUPPORTED_SCSI_OPCODE;
 
                 if (cdb[1] & 0x8)
@@ -682,7 +747,7 @@ sbc_parse_cdb(struct se_cmd *cmd, struct sbc_ops *ops)
                 sectors = transport_get_sectors_12(cdb);
                 cmd->t_task_lba = transport_lba_32(cdb);
 
-                if (!sbc_check_prot(dev, cmd, cdb, sectors))
+                if (!sbc_check_prot(dev, cmd, cdb, sectors, true))
                         return TCM_UNSUPPORTED_SCSI_OPCODE;
 
                 if (cdb[1] & 0x8)
@@ -695,7 +760,7 @@ sbc_parse_cdb(struct se_cmd *cmd, struct sbc_ops *ops)
                 sectors = transport_get_sectors_16(cdb);
                 cmd->t_task_lba = transport_lba_64(cdb);
 
-                if (!sbc_check_prot(dev, cmd, cdb, sectors))
+                if (!sbc_check_prot(dev, cmd, cdb, sectors, true))
                         return TCM_UNSUPPORTED_SCSI_OPCODE;
 
                 if (cdb[1] & 0x8)
@@ -1031,6 +1096,50 @@ err:
 }
 EXPORT_SYMBOL(sbc_execute_unmap);
 
+void
+sbc_dif_generate(struct se_cmd *cmd)
+{
+        struct se_device *dev = cmd->se_dev;
+        struct se_dif_v1_tuple *sdt;
+        struct scatterlist *dsg, *psg = cmd->t_prot_sg;
+        sector_t sector = cmd->t_task_lba;
+        void *daddr, *paddr;
+        int i, j, offset = 0;
+
+        for_each_sg(cmd->t_data_sg, dsg, cmd->t_data_nents, i) {
+                daddr = kmap_atomic(sg_page(dsg)) + dsg->offset;
+                paddr = kmap_atomic(sg_page(psg)) + psg->offset;
+
+                for (j = 0; j < dsg->length; j += dev->dev_attrib.block_size) {
+
+                        if (offset >= psg->length) {
+                                kunmap_atomic(paddr);
+                                psg = sg_next(psg);
+                                paddr = kmap_atomic(sg_page(psg)) + psg->offset;
+                                offset = 0;
+                        }
+
+                        sdt = paddr + offset;
+                        sdt->guard_tag = cpu_to_be16(crc_t10dif(daddr + j,
+                                                dev->dev_attrib.block_size));
+                        if (dev->dev_attrib.pi_prot_type == TARGET_DIF_TYPE1_PROT)
+                                sdt->ref_tag = cpu_to_be32(sector & 0xffffffff);
+                        sdt->app_tag = 0;
+
+                        pr_debug("DIF WRITE INSERT sector: %llu guard_tag: 0x%04x"
+                                 " app_tag: 0x%04x ref_tag: %u\n",
+                                 (unsigned long long)sector, sdt->guard_tag,
+                                 sdt->app_tag, be32_to_cpu(sdt->ref_tag));
+
+                        sector++;
+                        offset += sizeof(struct se_dif_v1_tuple);
+                }
+
+                kunmap_atomic(paddr);
+                kunmap_atomic(daddr);
+        }
+}
+
 static sense_reason_t
 sbc_dif_v1_verify(struct se_device *dev, struct se_dif_v1_tuple *sdt,
                   const void *p, sector_t sector, unsigned int ei_lba)
@@ -1162,9 +1271,9 @@ sbc_dif_verify_write(struct se_cmd *cmd, sector_t start, unsigned int sectors,
 }
 EXPORT_SYMBOL(sbc_dif_verify_write);
 
-sense_reason_t
-sbc_dif_verify_read(struct se_cmd *cmd, sector_t start, unsigned int sectors,
-                    unsigned int ei_lba, struct scatterlist *sg, int sg_off)
+static sense_reason_t
+__sbc_dif_verify_read(struct se_cmd *cmd, sector_t start, unsigned int sectors,
+                      unsigned int ei_lba, struct scatterlist *sg, int sg_off)
 {
         struct se_device *dev = cmd->se_dev;
         struct se_dif_v1_tuple *sdt;
@@ -1217,8 +1326,31 @@ sbc_dif_verify_read(struct se_cmd *cmd, sector_t start, unsigned int sectors,
                 kunmap_atomic(paddr);
                 kunmap_atomic(daddr);
         }
-        sbc_dif_copy_prot(cmd, sectors, true, sg, sg_off);
 
         return 0;
 }
+
+sense_reason_t
+sbc_dif_read_strip(struct se_cmd *cmd)
+{
+        struct se_device *dev = cmd->se_dev;
+        u32 sectors = cmd->prot_length / dev->prot_length;
+
+        return __sbc_dif_verify_read(cmd, cmd->t_task_lba, sectors, 0,
+                                     cmd->t_prot_sg, 0);
+}
+
+sense_reason_t
+sbc_dif_verify_read(struct se_cmd *cmd, sector_t start, unsigned int sectors,
+                    unsigned int ei_lba, struct scatterlist *sg, int sg_off)
+{
+        sense_reason_t rc;
+
+        rc = __sbc_dif_verify_read(cmd, start, sectors, ei_lba, sg, sg_off);
+        if (rc)
+                return rc;
+
+        sbc_dif_copy_prot(cmd, sectors, true, sg, sg_off);
+        return 0;
+}
 EXPORT_SYMBOL(sbc_dif_verify_read);
diff --git a/drivers/target/target_core_spc.c b/drivers/target/target_core_spc.c
index 3bebc71ea033..8653666612a8 100644
--- a/drivers/target/target_core_spc.c
+++ b/drivers/target/target_core_spc.c
@@ -71,6 +71,7 @@ spc_emulate_inquiry_std(struct se_cmd *cmd, unsigned char *buf)
 {
         struct se_lun *lun = cmd->se_lun;
         struct se_device *dev = cmd->se_dev;
+        struct se_session *sess = cmd->se_sess;
 
         /* Set RMB (removable media) for tape devices */
         if (dev->transport->get_device_type(dev) == TYPE_TAPE)
@@ -101,10 +102,13 @@ spc_emulate_inquiry_std(struct se_cmd *cmd, unsigned char *buf)
         if (dev->dev_attrib.emulate_3pc)
                 buf[5] |= 0x8;
         /*
-         * Set Protection (PROTECT) bit when DIF has been enabled.
+         * Set Protection (PROTECT) bit when DIF has been enabled on the
+         * device, and the transport supports VERIFY + PASS.
          */
-        if (dev->dev_attrib.pi_prot_type)
-                buf[5] |= 0x1;
+        if (sess->sup_prot_ops & (TARGET_PROT_DIN_PASS | TARGET_PROT_DOUT_PASS)) {
+                if (dev->dev_attrib.pi_prot_type)
+                        buf[5] |= 0x1;
+        }
 
         buf[7] = 0x2; /* CmdQue=1 */
 
@@ -473,16 +477,19 @@ static sense_reason_t
 spc_emulate_evpd_86(struct se_cmd *cmd, unsigned char *buf)
 {
         struct se_device *dev = cmd->se_dev;
+        struct se_session *sess = cmd->se_sess;
 
         buf[3] = 0x3c;
         /*
          * Set GRD_CHK + REF_CHK for TYPE1 protection, or GRD_CHK
          * only for TYPE3 protection.
          */
-        if (dev->dev_attrib.pi_prot_type == TARGET_DIF_TYPE1_PROT)
-                buf[4] = 0x5;
-        else if (dev->dev_attrib.pi_prot_type == TARGET_DIF_TYPE3_PROT)
-                buf[4] = 0x4;
+        if (sess->sup_prot_ops & (TARGET_PROT_DIN_PASS | TARGET_PROT_DOUT_PASS)) {
+                if (dev->dev_attrib.pi_prot_type == TARGET_DIF_TYPE1_PROT)
+                        buf[4] = 0x5;
+                else if (dev->dev_attrib.pi_prot_type == TARGET_DIF_TYPE3_PROT)
+                        buf[4] = 0x4;
+        }
 
         /* Set HEADSUP, ORDSUP, SIMPSUP */
         buf[5] = 0x07;
@@ -762,7 +769,7 @@ out:
         return ret;
 }
 
-static int spc_modesense_rwrecovery(struct se_device *dev, u8 pc, u8 *p)
+static int spc_modesense_rwrecovery(struct se_cmd *cmd, u8 pc, u8 *p)
 {
         p[0] = 0x01;
         p[1] = 0x0a;
@@ -775,8 +782,11 @@ out:
         return 12;
 }
 
-static int spc_modesense_control(struct se_device *dev, u8 pc, u8 *p)
+static int spc_modesense_control(struct se_cmd *cmd, u8 pc, u8 *p)
 {
+        struct se_device *dev = cmd->se_dev;
+        struct se_session *sess = cmd->se_sess;
+
         p[0] = 0x0a;
         p[1] = 0x0a;
 
@@ -868,8 +878,10 @@ static int spc_modesense_control(struct se_device *dev, u8 pc, u8 *p)
          * type, shall not modify the contents of the LOGICAL BLOCK REFERENCE
          * TAG field.
          */
-        if (dev->dev_attrib.pi_prot_type)
-                p[5] |= 0x80;
+        if (sess->sup_prot_ops & (TARGET_PROT_DIN_PASS | TARGET_PROT_DOUT_PASS)) {
+                if (dev->dev_attrib.pi_prot_type)
+                        p[5] |= 0x80;
+        }
 
         p[8] = 0xff;
         p[9] = 0xff;
@@ -879,8 +891,10 @@ out:
         return 12;
 }
 
-static int spc_modesense_caching(struct se_device *dev, u8 pc, u8 *p)
+static int spc_modesense_caching(struct se_cmd *cmd, u8 pc, u8 *p)
 {
+        struct se_device *dev = cmd->se_dev;
+
         p[0] = 0x08;
         p[1] = 0x12;
 
@@ -896,7 +910,7 @@ out:
         return 20;
 }
 
-static int spc_modesense_informational_exceptions(struct se_device *dev, u8 pc, unsigned char *p)
+static int spc_modesense_informational_exceptions(struct se_cmd *cmd, u8 pc, unsigned char *p)
 {
         p[0] = 0x1c;
         p[1] = 0x0a;
@@ -912,7 +926,7 @@ out:
 static struct {
         uint8_t         page;
         uint8_t         subpage;
-        int             (*emulate)(struct se_device *, u8, unsigned char *);
+        int             (*emulate)(struct se_cmd *, u8, unsigned char *);
 } modesense_handlers[] = {
         { .page = 0x01, .subpage = 0x00, .emulate = spc_modesense_rwrecovery },
         { .page = 0x08, .subpage = 0x00, .emulate = spc_modesense_caching },
@@ -1050,7 +1064,7 @@ static sense_reason_t spc_emulate_modesense(struct se_cmd *cmd)
                          * the only two possibilities).
                          */
                         if ((modesense_handlers[i].subpage & ~subpage) == 0) {
-                                ret = modesense_handlers[i].emulate(dev, pc, &buf[length]);
+                                ret = modesense_handlers[i].emulate(cmd, pc, &buf[length]);
                                 if (!ten && length + ret >= 255)
                                         break;
                                 length += ret;
@@ -1063,7 +1077,7 @@ static sense_reason_t spc_emulate_modesense(struct se_cmd *cmd)
         for (i = 0; i < ARRAY_SIZE(modesense_handlers); ++i)
                 if (modesense_handlers[i].page == page &&
                     modesense_handlers[i].subpage == subpage) {
-                        length += modesense_handlers[i].emulate(dev, pc, &buf[length]);
+                        length += modesense_handlers[i].emulate(cmd, pc, &buf[length]);
                         goto set_length;
                 }
 
@@ -1095,7 +1109,6 @@ set_length:
 
 static sense_reason_t spc_emulate_modeselect(struct se_cmd *cmd)
 {
-        struct se_device *dev = cmd->se_dev;
         char *cdb = cmd->t_task_cdb;
         bool ten = cdb[0] == MODE_SELECT_10;
         int off = ten ? 8 : 4;
@@ -1131,7 +1144,7 @@ static sense_reason_t spc_emulate_modeselect(struct se_cmd *cmd)
                 if (modesense_handlers[i].page == page &&
                     modesense_handlers[i].subpage == subpage) {
                         memset(tbuf, 0, SE_MODE_PAGE_BUF);
-                        length = modesense_handlers[i].emulate(dev, 0, tbuf);
+                        length = modesense_handlers[i].emulate(cmd, 0, tbuf);
                         goto check_contents;
                 }
 
diff --git a/drivers/target/target_core_tmr.c b/drivers/target/target_core_tmr.c
index 70c638f730af..f7cd95e8111a 100644
--- a/drivers/target/target_core_tmr.c
+++ b/drivers/target/target_core_tmr.c
@@ -87,14 +87,17 @@ static void core_tmr_handle_tas_abort(
         struct se_cmd *cmd,
         int tas)
 {
+        bool remove = true;
         /*
          * TASK ABORTED status (TAS) bit support
         */
         if ((tmr_nacl &&
-             (tmr_nacl == cmd->se_sess->se_node_acl)) || tas)
+             (tmr_nacl != cmd->se_sess->se_node_acl)) && tas) {
+                remove = false;
                 transport_send_task_abort(cmd);
+        }
 
-        transport_cmd_finish_abort(cmd, 0);
+        transport_cmd_finish_abort(cmd, remove);
 }
 
 static int target_check_cdb_and_preempt(struct list_head *list,
@@ -127,6 +130,11 @@ void core_tmr_abort_task(
 
                 if (dev != se_cmd->se_dev)
                         continue;
+
+                /* skip se_cmd associated with tmr */
+                if (tmr->task_cmd == se_cmd)
+                        continue;
+
                 ref_tag = se_cmd->se_tfo->get_task_tag(se_cmd);
                 if (tmr->ref_task_tag != ref_tag)
                         continue;
@@ -150,18 +158,9 @@ void core_tmr_abort_task(
 
                 cancel_work_sync(&se_cmd->work);
                 transport_wait_for_tasks(se_cmd);
-                /*
-                 * Now send SAM_STAT_TASK_ABORTED status for the referenced
-                 * se_cmd descriptor..
-                 */
-                transport_send_task_abort(se_cmd);
-                /*
-                 * Also deal with possible extra acknowledge reference..
-                 */
-                if (se_cmd->se_cmd_flags & SCF_ACK_KREF)
-                        target_put_sess_cmd(se_sess, se_cmd);
 
                 target_put_sess_cmd(se_sess, se_cmd);
+                transport_cmd_finish_abort(se_cmd, true);
 
                 printk("ABORT_TASK: Sending TMR_FUNCTION_COMPLETE for"
                                 " ref_tag: %d\n", ref_tag);
diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c
index 2956250b7225..d4b98690a736 100644
--- a/drivers/target/target_core_transport.c
+++ b/drivers/target/target_core_transport.c
@@ -235,7 +235,7 @@ void transport_subsystem_check_init(void)
         sub_api_initialized = 1;
 }
 
-struct se_session *transport_init_session(void)
+struct se_session *transport_init_session(enum target_prot_op sup_prot_ops)
 {
         struct se_session *se_sess;
 
@@ -251,6 +251,7 @@ struct se_session *transport_init_session(void)
         INIT_LIST_HEAD(&se_sess->sess_wait_list);
         spin_lock_init(&se_sess->sess_cmd_lock);
         kref_init(&se_sess->sess_kref);
+        se_sess->sup_prot_ops = sup_prot_ops;
 
         return se_sess;
 }
@@ -288,12 +289,13 @@ int transport_alloc_session_tags(struct se_session *se_sess,
 EXPORT_SYMBOL(transport_alloc_session_tags);
 
 struct se_session *transport_init_session_tags(unsigned int tag_num,
-                                               unsigned int tag_size)
+                                               unsigned int tag_size,
+                                               enum target_prot_op sup_prot_ops)
 {
         struct se_session *se_sess;
         int rc;
 
-        se_sess = transport_init_session();
+        se_sess = transport_init_session(sup_prot_ops);
         if (IS_ERR(se_sess))
                 return se_sess;
 
@@ -603,6 +605,15 @@ static void transport_lun_remove_cmd(struct se_cmd *cmd)
 
 void transport_cmd_finish_abort(struct se_cmd *cmd, int remove)
 {
+        if (cmd->se_cmd_flags & SCF_SE_LUN_CMD)
+                transport_lun_remove_cmd(cmd);
+        /*
+         * Allow the fabric driver to unmap any resources before
+         * releasing the descriptor via TFO->release_cmd()
+         */
+        if (remove)
+                cmd->se_tfo->aborted_task(cmd);
+
         if (transport_cmd_check_stop_to_fabric(cmd))
                 return;
         if (remove)
@@ -1365,6 +1376,13 @@ int target_submit_cmd_map_sgls(struct se_cmd *se_cmd, struct se_session *se_sess
                 target_put_sess_cmd(se_sess, se_cmd);
                 return 0;
         }
+
+        rc = target_setup_cmd_from_cdb(se_cmd, cdb);
+        if (rc != 0) {
+                transport_generic_request_failure(se_cmd, rc);
+                return 0;
+        }
+
         /*
          * Save pointers for SGLs containing protection information,
          * if present.
@@ -1374,11 +1392,6 @@ int target_submit_cmd_map_sgls(struct se_cmd *se_cmd, struct se_session *se_sess
                 se_cmd->t_prot_nents = sgl_prot_count;
         }
 
-        rc = target_setup_cmd_from_cdb(se_cmd, cdb);
-        if (rc != 0) {
-                transport_generic_request_failure(se_cmd, rc);
-                return 0;
-        }
         /*
          * When a non zero sgl_count has been passed perform SGL passthrough
          * mapping for pre-allocated fabric memory instead of having target
@@ -1754,6 +1767,15 @@ void target_execute_cmd(struct se_cmd *cmd)
         cmd->t_state = TRANSPORT_PROCESSING;
         cmd->transport_state |= CMD_T_ACTIVE|CMD_T_BUSY|CMD_T_SENT;
         spin_unlock_irq(&cmd->t_state_lock);
+        /*
+         * Perform WRITE_INSERT of PI using software emulation when backend
+         * device has PI enabled, if the transport has not already generated
+         * PI using hardware WRITE_INSERT offload.
+         */
+        if (cmd->prot_op == TARGET_PROT_DOUT_INSERT) {
+                if (!(cmd->se_sess->sup_prot_ops & TARGET_PROT_DOUT_INSERT))
+                        sbc_dif_generate(cmd);
+        }
 
         if (target_handle_task_attr(cmd)) {
                 spin_lock_irq(&cmd->t_state_lock);
@@ -1883,6 +1905,21 @@ static void transport_handle_queue_full(
         schedule_work(&cmd->se_dev->qf_work_queue);
 }
 
+static bool target_check_read_strip(struct se_cmd *cmd)
+{
+        sense_reason_t rc;
+
+        if (!(cmd->se_sess->sup_prot_ops & TARGET_PROT_DIN_STRIP)) {
+                rc = sbc_dif_read_strip(cmd);
+                if (rc) {
+                        cmd->pi_err = rc;
+                        return true;
+                }
+        }
+
+        return false;
+}
+
 static void target_complete_ok_work(struct work_struct *work)
 {
         struct se_cmd *cmd = container_of(work, struct se_cmd, work);
@@ -1947,6 +1984,22 @@ static void target_complete_ok_work(struct work_struct *work)
                                         cmd->data_length;
                 }
                 spin_unlock(&cmd->se_lun->lun_sep_lock);
+                /*
+                 * Perform READ_STRIP of PI using software emulation when
+                 * backend had PI enabled, if the transport will not be
+                 * performing hardware READ_STRIP offload.
+                 */
+                if (cmd->prot_op == TARGET_PROT_DIN_STRIP &&
+                    target_check_read_strip(cmd)) {
+                        ret = transport_send_check_condition_and_sense(cmd,
+                                                cmd->pi_err, 0);
+                        if (ret == -EAGAIN || ret == -ENOMEM)
+                                goto queue_full;
+
+                        transport_lun_remove_cmd(cmd);
+                        transport_cmd_check_stop_to_fabric(cmd);
+                        return;
+                }
 
                 trace_target_cmd_complete(cmd);
                 ret = cmd->se_tfo->queue_data_in(cmd);
@@ -2039,6 +2092,10 @@ static inline void transport_free_pages(struct se_cmd *cmd)
         transport_free_sgl(cmd->t_bidi_data_sg, cmd->t_bidi_data_nents);
         cmd->t_bidi_data_sg = NULL;
         cmd->t_bidi_data_nents = 0;
+
+        transport_free_sgl(cmd->t_prot_sg, cmd->t_prot_nents);
+        cmd->t_prot_sg = NULL;
+        cmd->t_prot_nents = 0;
 }
 
 /**
@@ -2202,6 +2259,14 @@ transport_generic_new_cmd(struct se_cmd *cmd)
                                 return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
                 }
 
+                if (cmd->prot_op != TARGET_PROT_NORMAL) {
+                        ret = target_alloc_sgl(&cmd->t_prot_sg,
+                                               &cmd->t_prot_nents,
+                                               cmd->prot_length, true);
+                        if (ret < 0)
+                                return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+                }
+
                 ret = target_alloc_sgl(&cmd->t_data_sg, &cmd->t_data_nents,
                                        cmd->data_length, zero_flag);
                 if (ret < 0)
@@ -2770,13 +2835,17 @@ int transport_check_aborted_status(struct se_cmd *cmd, int send_status)
         if (!(cmd->transport_state & CMD_T_ABORTED))
                 return 0;
 
-        if (!send_status || (cmd->se_cmd_flags & SCF_SENT_DELAYED_TAS))
+        /*
+         * If cmd has been aborted but either no status is to be sent or it has
+         * already been sent, just return
+         */
+        if (!send_status || !(cmd->se_cmd_flags & SCF_SEND_DELAYED_TAS))
                 return 1;
 
         pr_debug("Sending delayed SAM_STAT_TASK_ABORTED status for CDB: 0x%02x ITT: 0x%08x\n",
                  cmd->t_task_cdb[0], cmd->se_tfo->get_task_tag(cmd));
 
-        cmd->se_cmd_flags |= SCF_SENT_DELAYED_TAS;
+        cmd->se_cmd_flags &= ~SCF_SEND_DELAYED_TAS;
         cmd->scsi_status = SAM_STAT_TASK_ABORTED;
         trace_target_cmd_complete(cmd);
         cmd->se_tfo->queue_status(cmd);
@@ -2790,7 +2859,7 @@ void transport_send_task_abort(struct se_cmd *cmd)
         unsigned long flags;
 
         spin_lock_irqsave(&cmd->t_state_lock, flags);
-        if (cmd->se_cmd_flags & (SCF_SENT_CHECK_CONDITION | SCF_SENT_DELAYED_TAS)) {
+        if (cmd->se_cmd_flags & (SCF_SENT_CHECK_CONDITION)) {
                 spin_unlock_irqrestore(&cmd->t_state_lock, flags);
                 return;
         }
@@ -2805,6 +2874,7 @@ void transport_send_task_abort(struct se_cmd *cmd)
         if (cmd->data_direction == DMA_TO_DEVICE) {
                 if (cmd->se_tfo->write_pending_status(cmd) != 0) {
                         cmd->transport_state |= CMD_T_ABORTED;
+                        cmd->se_cmd_flags |= SCF_SEND_DELAYED_TAS;
                         smp_mb__after_atomic_inc();
                         return;
                 }
diff --git a/drivers/target/tcm_fc/tcm_fc.h b/drivers/target/tcm_fc/tcm_fc.h
index 752863acecb8..a0bcfd3e7e7d 100644
--- a/drivers/target/tcm_fc/tcm_fc.h
+++ b/drivers/target/tcm_fc/tcm_fc.h
@@ -94,20 +94,19 @@ struct ft_lun {
  */
 struct ft_tpg {
         u32 index;
-        struct ft_lport_acl *lport_acl;
+        struct ft_lport_wwn *lport_wwn;
         struct ft_tport *tport;         /* active tport or NULL */
-        struct list_head list;          /* linkage in ft_lport_acl tpg_list */
         struct list_head lun_list;      /* head of LUNs */
         struct se_portal_group se_tpg;
         struct workqueue_struct *workqueue;
 };
 
-struct ft_lport_acl {
+struct ft_lport_wwn {
         u64 wwpn;
         char name[FT_NAMELEN];
-        struct list_head list;
-        struct list_head tpg_list;
-        struct se_wwn fc_lport_wwn;
+        struct list_head ft_wwn_node;
+        struct ft_tpg *tpg;
+        struct se_wwn se_wwn;
 };
 
 /*
@@ -128,7 +127,6 @@ struct ft_cmd {
         u32 sg_cnt;                     /* No. of item in scatterlist */
 };
 
-extern struct list_head ft_lport_list;
 extern struct mutex ft_lport_lock;
 extern struct fc4_prov ft_prov;
 extern struct target_fabric_configfs *ft_configfs;
@@ -163,6 +161,7 @@ int ft_write_pending_status(struct se_cmd *);
 u32 ft_get_task_tag(struct se_cmd *);
 int ft_get_cmd_state(struct se_cmd *);
 void ft_queue_tm_resp(struct se_cmd *);
+void ft_aborted_task(struct se_cmd *);
 
 /*
  * other internal functions.
diff --git a/drivers/target/tcm_fc/tfc_cmd.c b/drivers/target/tcm_fc/tfc_cmd.c
index 8b2c1aaf81de..01cf37f212c3 100644
--- a/drivers/target/tcm_fc/tfc_cmd.c
+++ b/drivers/target/tcm_fc/tfc_cmd.c
@@ -426,6 +426,11 @@ void ft_queue_tm_resp(struct se_cmd *se_cmd)
         ft_send_resp_code(cmd, code);
 }
 
+void ft_aborted_task(struct se_cmd *se_cmd)
+{
+        return;
+}
+
 static void ft_send_work(struct work_struct *work);
 
 /*
diff --git a/drivers/target/tcm_fc/tfc_conf.c b/drivers/target/tcm_fc/tfc_conf.c
index e879da81ad93..efdcb9663a1a 100644
--- a/drivers/target/tcm_fc/tfc_conf.c
+++ b/drivers/target/tcm_fc/tfc_conf.c
@@ -50,7 +50,7 @@
 
 struct target_fabric_configfs *ft_configfs;
 
-LIST_HEAD(ft_lport_list);
+static LIST_HEAD(ft_wwn_list);
 DEFINE_MUTEX(ft_lport_lock);
 
 unsigned int ft_debug_logging;
@@ -298,7 +298,7 @@ static struct se_portal_group *ft_add_tpg(
         struct config_group *group,
         const char *name)
 {
-        struct ft_lport_acl *lacl;
+        struct ft_lport_wwn *ft_wwn;
         struct ft_tpg *tpg;
         struct workqueue_struct *wq;
         unsigned long index;
@@ -318,12 +318,17 @@ static struct se_portal_group *ft_add_tpg(
         if (index > UINT_MAX)
                 return NULL;
 
-        lacl = container_of(wwn, struct ft_lport_acl, fc_lport_wwn);
+        if ((index != 1)) {
+                pr_err("Error, a single TPG=1 is used for HW port mappings\n");
+                return ERR_PTR(-ENOSYS);
+        }
+
+        ft_wwn = container_of(wwn, struct ft_lport_wwn, se_wwn);
         tpg = kzalloc(sizeof(*tpg), GFP_KERNEL);
         if (!tpg)
                 return NULL;
         tpg->index = index;
-        tpg->lport_acl = lacl;
+        tpg->lport_wwn = ft_wwn;
         INIT_LIST_HEAD(&tpg->lun_list);
 
         wq = alloc_workqueue("tcm_fc", 0, 1);
@@ -342,7 +347,7 @@ static struct se_portal_group *ft_add_tpg(
         tpg->workqueue = wq;
 
         mutex_lock(&ft_lport_lock);
-        list_add_tail(&tpg->list, &lacl->tpg_list);
+        ft_wwn->tpg = tpg;
         mutex_unlock(&ft_lport_lock);
 
         return &tpg->se_tpg;
@@ -351,6 +356,7 @@ static struct se_portal_group *ft_add_tpg(
 static void ft_del_tpg(struct se_portal_group *se_tpg)
 {
         struct ft_tpg *tpg = container_of(se_tpg, struct ft_tpg, se_tpg);
+        struct ft_lport_wwn *ft_wwn = tpg->lport_wwn;
 
         pr_debug("del tpg %s\n",
                     config_item_name(&tpg->se_tpg.tpg_group.cg_item));
@@ -361,7 +367,7 @@ static void ft_del_tpg(struct se_portal_group *se_tpg)
         synchronize_rcu();
 
         mutex_lock(&ft_lport_lock);
-        list_del(&tpg->list);
+        ft_wwn->tpg = NULL;
         if (tpg->tport) {
                 tpg->tport->tpg = NULL;
                 tpg->tport = NULL;
@@ -380,15 +386,11 @@ static void ft_del_tpg(struct se_portal_group *se_tpg)
  */
 struct ft_tpg *ft_lport_find_tpg(struct fc_lport *lport)
 {
-        struct ft_lport_acl *lacl;
-        struct ft_tpg *tpg;
+        struct ft_lport_wwn *ft_wwn;
 
-        list_for_each_entry(lacl, &ft_lport_list, list) {
-                if (lacl->wwpn == lport->wwpn) {
-                        list_for_each_entry(tpg, &lacl->tpg_list, list)
-                                return tpg; /* XXX for now return first entry */
-                        return NULL;
-                }
+        list_for_each_entry(ft_wwn, &ft_wwn_list, ft_wwn_node) {
+                if (ft_wwn->wwpn == lport->wwpn)
+                        return ft_wwn->tpg;
         }
         return NULL;
 }
@@ -401,50 +403,49 @@ struct ft_tpg *ft_lport_find_tpg(struct fc_lport *lport)
  * Add lport to allowed config.
  * The name is the WWPN in lower-case ASCII, colon-separated bytes.
  */
-static struct se_wwn *ft_add_lport(
+static struct se_wwn *ft_add_wwn(
         struct target_fabric_configfs *tf,
         struct config_group *group,
         const char *name)
 {
-        struct ft_lport_acl *lacl;
-        struct ft_lport_acl *old_lacl;
+        struct ft_lport_wwn *ft_wwn;
+        struct ft_lport_wwn *old_ft_wwn;
         u64 wwpn;
 
-        pr_debug("add lport %s\n", name);
+        pr_debug("add wwn %s\n", name);
         if (ft_parse_wwn(name, &wwpn, 1) < 0)
                 return NULL;
-        lacl = kzalloc(sizeof(*lacl), GFP_KERNEL);
-        if (!lacl)
+        ft_wwn = kzalloc(sizeof(*ft_wwn), GFP_KERNEL);
+        if (!ft_wwn)
                 return NULL;
-        lacl->wwpn = wwpn;
-        INIT_LIST_HEAD(&lacl->tpg_list);
+        ft_wwn->wwpn = wwpn;
 
         mutex_lock(&ft_lport_lock);
-        list_for_each_entry(old_lacl, &ft_lport_list, list) {
-                if (old_lacl->wwpn == wwpn) {
+        list_for_each_entry(old_ft_wwn, &ft_wwn_list, ft_wwn_node) {
+                if (old_ft_wwn->wwpn == wwpn) {
                         mutex_unlock(&ft_lport_lock);
-                        kfree(lacl);
+                        kfree(ft_wwn);
                         return NULL;
                 }
         }
-        list_add_tail(&lacl->list, &ft_lport_list);
-        ft_format_wwn(lacl->name, sizeof(lacl->name), wwpn);
+        list_add_tail(&ft_wwn->ft_wwn_node, &ft_wwn_list);
+        ft_format_wwn(ft_wwn->name, sizeof(ft_wwn->name), wwpn);
         mutex_unlock(&ft_lport_lock);
 
-        return &lacl->fc_lport_wwn;
+        return &ft_wwn->se_wwn;
 }
 
-static void ft_del_lport(struct se_wwn *wwn)
+static void ft_del_wwn(struct se_wwn *wwn)
 {
-        struct ft_lport_acl *lacl = container_of(wwn,
-                                struct ft_lport_acl, fc_lport_wwn);
+        struct ft_lport_wwn *ft_wwn = container_of(wwn,
+                                struct ft_lport_wwn, se_wwn);
 
-        pr_debug("del lport %s\n", lacl->name);
+        pr_debug("del wwn %s\n", ft_wwn->name);
         mutex_lock(&ft_lport_lock);
-        list_del(&lacl->list);
+        list_del(&ft_wwn->ft_wwn_node);
         mutex_unlock(&ft_lport_lock);
 
-        kfree(lacl);
+        kfree(ft_wwn);
 }
 
 static ssize_t ft_wwn_show_attr_version(
@@ -471,7 +472,7 @@ static char *ft_get_fabric_wwn(struct se_portal_group *se_tpg)
 {
         struct ft_tpg *tpg = se_tpg->se_tpg_fabric_ptr;
 
-        return tpg->lport_acl->name;
+        return tpg->lport_wwn->name;
 }
 
 static u16 ft_get_tag(struct se_portal_group *se_tpg)
@@ -536,12 +537,13 @@ static struct target_core_fabric_ops ft_fabric_ops = {
         .queue_data_in =                ft_queue_data_in,
         .queue_status =                 ft_queue_status,
         .queue_tm_rsp =                 ft_queue_tm_resp,
+        .aborted_task =                 ft_aborted_task,
         /*
          * Setup function pointers for generic logic in
          * target_core_fabric_configfs.c
          */
-        .fabric_make_wwn =              &ft_add_lport,
-        .fabric_drop_wwn =              &ft_del_lport,
+        .fabric_make_wwn =              &ft_add_wwn,
+        .fabric_drop_wwn =              &ft_del_wwn,
         .fabric_make_tpg =              &ft_add_tpg,
         .fabric_drop_tpg =              &ft_del_tpg,
         .fabric_post_link =             NULL,
diff --git a/drivers/target/tcm_fc/tfc_sess.c b/drivers/target/tcm_fc/tfc_sess.c
index ae52c08dad09..21ce50880c79 100644
--- a/drivers/target/tcm_fc/tfc_sess.c
+++ b/drivers/target/tcm_fc/tfc_sess.c
@@ -51,7 +51,7 @@ static void ft_sess_delete_all(struct ft_tport *);
  * Lookup or allocate target local port.
  * Caller holds ft_lport_lock.
  */
-static struct ft_tport *ft_tport_create(struct fc_lport *lport)
+static struct ft_tport *ft_tport_get(struct fc_lport *lport)
 {
         struct ft_tpg *tpg;
         struct ft_tport *tport;
@@ -68,6 +68,7 @@ static struct ft_tport *ft_tport_create(struct fc_lport *lport)
 
         if (tport) {
                 tport->tpg = tpg;
+                tpg->tport = tport;
                 return tport;
         }
 
@@ -114,7 +115,7 @@ static void ft_tport_delete(struct ft_tport *tport)
 void ft_lport_add(struct fc_lport *lport, void *arg)
 {
         mutex_lock(&ft_lport_lock);
-        ft_tport_create(lport);
+        ft_tport_get(lport);
         mutex_unlock(&ft_lport_lock);
 }
 
@@ -211,7 +212,8 @@ static struct ft_sess *ft_sess_create(struct ft_tport *tport, u32 port_id,
                 return NULL;
 
         sess->se_sess = transport_init_session_tags(TCM_FC_DEFAULT_TAGS,
-                                                    sizeof(struct ft_cmd));
+                                                    sizeof(struct ft_cmd),
+                                                    TARGET_PROT_NORMAL);
         if (IS_ERR(sess->se_sess)) {
                 kfree(sess);
                 return NULL;
@@ -350,7 +352,7 @@ static int ft_prli_locked(struct fc_rport_priv *rdata, u32 spp_len,
         struct ft_node_acl *acl;
         u32 fcp_parm;
 
-        tport = ft_tport_create(rdata->local_port);
+        tport = ft_tport_get(rdata->local_port);
         if (!tport)
                 goto not_target;        /* not a target for this local port */
 
diff --git a/drivers/tty/tty_audit.c b/drivers/tty/tty_audit.c
index b0e540137e39..90ca082935f6 100644
--- a/drivers/tty/tty_audit.c
+++ b/drivers/tty/tty_audit.c
@@ -65,6 +65,7 @@ static void tty_audit_log(const char *description, int major, int minor,
 {
         struct audit_buffer *ab;
         struct task_struct *tsk = current;
+        pid_t pid = task_pid_nr(tsk);
         uid_t uid = from_kuid(&init_user_ns, task_uid(tsk));
         uid_t loginuid = from_kuid(&init_user_ns, audit_get_loginuid(tsk));
         unsigned int sessionid = audit_get_sessionid(tsk);
@@ -74,7 +75,7 @@ static void tty_audit_log(const char *description, int major, int minor,
                 char name[sizeof(tsk->comm)];
 
                 audit_log_format(ab, "%s pid=%u uid=%u auid=%u ses=%u major=%d"
-                                 " minor=%d comm=", description, tsk->pid, uid,
+                                 " minor=%d comm=", description, pid, uid,
                                  loginuid, sessionid, major, minor);
                 get_task_comm(name, tsk);
                 audit_log_untrustedstring(ab, name);
diff --git a/drivers/usb/gadget/tcm_usb_gadget.c b/drivers/usb/gadget/tcm_usb_gadget.c
index 460c266b8e24..f058c0368d61 100644
--- a/drivers/usb/gadget/tcm_usb_gadget.c
+++ b/drivers/usb/gadget/tcm_usb_gadget.c
@@ -1471,6 +1471,11 @@ static void usbg_queue_tm_rsp(struct se_cmd *se_cmd)
 {
 }
 
+static void usbg_aborted_task(struct se_cmd *se_cmd)
+{
+        return;
+}
+
 static const char *usbg_check_wwn(const char *name)
 {
         const char *n;
@@ -1726,7 +1731,7 @@ static int tcm_usbg_make_nexus(struct usbg_tpg *tpg, char *name)
                 pr_err("Unable to allocate struct tcm_vhost_nexus\n");
                 goto err_unlock;
         }
-        tv_nexus->tvn_se_sess = transport_init_session();
+        tv_nexus->tvn_se_sess = transport_init_session(TARGET_PROT_NORMAL);
         if (IS_ERR(tv_nexus->tvn_se_sess))
                 goto err_free;
 
@@ -1897,6 +1902,7 @@ static struct target_core_fabric_ops usbg_ops = {
         .queue_data_in                  = usbg_send_read_response,
         .queue_status                   = usbg_send_status_response,
         .queue_tm_rsp                   = usbg_queue_tm_rsp,
+        .aborted_task                   = usbg_aborted_task,
         .check_stop_free                = usbg_check_stop_free,
 
         .fabric_make_wwn                = usbg_make_tport,
diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c
index e1e22e0f01e8..be414d2b2b22 100644
--- a/drivers/vhost/net.c
+++ b/drivers/vhost/net.c
@@ -818,9 +818,9 @@ static int vhost_net_release(struct inode *inode, struct file *f)
         vhost_dev_cleanup(&n->dev, false);
         vhost_net_vq_reset(n);
         if (tx_sock)
-                fput(tx_sock->file);
+                sockfd_put(tx_sock);
         if (rx_sock)
-                fput(rx_sock->file);
+                sockfd_put(rx_sock);
         /* Make sure no callbacks are outstanding */
         synchronize_rcu_bh();
         /* We do an extra flush before freeing memory,
@@ -860,7 +860,7 @@ static struct socket *get_raw_socket(int fd)
         }
         return sock;
 err:
-        fput(sock->file);
+        sockfd_put(sock);
         return ERR_PTR(r);
 }
 
@@ -966,7 +966,7 @@ static long vhost_net_set_backend(struct vhost_net *n, unsigned index, int fd)
 
         if (oldsock) {
                 vhost_net_flush_vq(n, index);
-                fput(oldsock->file);
+                sockfd_put(oldsock);
         }
 
         mutex_unlock(&n->dev.mutex);
@@ -978,7 +978,7 @@ err_used:
         if (ubufs)
                 vhost_net_ubuf_put_wait_and_free(ubufs);
 err_ubufs:
-        fput(sock->file);
+        sockfd_put(sock);
 err_vq:
         mutex_unlock(&vq->mutex);
 err:
@@ -1009,9 +1009,9 @@ static long vhost_net_reset_owner(struct vhost_net *n)
 done:
         mutex_unlock(&n->dev.mutex);
         if (tx_sock)
-                fput(tx_sock->file);
+                sockfd_put(tx_sock);
         if (rx_sock)
-                fput(rx_sock->file);
+                sockfd_put(rx_sock);
         return err;
 }
 
diff --git a/drivers/vhost/scsi.c b/drivers/vhost/scsi.c
index e48d4a672580..cf50ce93975b 100644
--- a/drivers/vhost/scsi.c
+++ b/drivers/vhost/scsi.c
@@ -539,6 +539,11 @@ static void tcm_vhost_queue_tm_rsp(struct se_cmd *se_cmd)
         return;
 }
 
+static void tcm_vhost_aborted_task(struct se_cmd *se_cmd)
+{
+        return;
+}
+
 static void tcm_vhost_free_evt(struct vhost_scsi *vs, struct tcm_vhost_evt *evt)
 {
         vs->vs_events_nr--;
@@ -1740,7 +1745,8 @@ static int tcm_vhost_make_nexus(struct tcm_vhost_tpg *tpg,
          */
         tv_nexus->tvn_se_sess = transport_init_session_tags(
                                         TCM_VHOST_DEFAULT_TAGS,
-                                        sizeof(struct tcm_vhost_cmd));
+                                        sizeof(struct tcm_vhost_cmd),
+                                        TARGET_PROT_NORMAL);
         if (IS_ERR(tv_nexus->tvn_se_sess)) {
                 mutex_unlock(&tpg->tv_tpg_mutex);
                 kfree(tv_nexus);
@@ -2131,6 +2137,7 @@ static struct target_core_fabric_ops tcm_vhost_ops = {
         .queue_data_in                  = tcm_vhost_queue_data_in,
         .queue_status                   = tcm_vhost_queue_status,
         .queue_tm_rsp                   = tcm_vhost_queue_tm_rsp,
+        .aborted_task                   = tcm_vhost_aborted_task,
         /*
          * Setup callers for generic logic in target_core_fabric_configfs.c
          */
diff --git a/fs/aio.c b/fs/aio.c
index 062a5f6a1448..12a3de0ee6da 100644
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -52,7 +52,8 @@
 struct aio_ring {
         unsigned        id;     /* kernel internal index number */
         unsigned        nr;     /* number of io_events */
-        unsigned        head;
+        unsigned        head;   /* Written to by userland or under ring_lock
+                                 * mutex by aio_read_events_ring(). */
         unsigned        tail;
 
         unsigned        magic;
@@ -243,6 +244,11 @@ static void aio_free_ring(struct kioctx *ctx)
 {
         int i;
 
+        /* Disconnect the kiotx from the ring file.  This prevents future
+         * accesses to the kioctx from page migration.
+         */
+        put_aio_ring_file(ctx);
+
         for (i = 0; i < ctx->nr_pages; i++) {
                 struct page *page;
                 pr_debug("pid(%d) [%d] page->count=%d\n", current->pid, i,
@@ -254,8 +260,6 @@ static void aio_free_ring(struct kioctx *ctx)
                 put_page(page);
         }
 
-        put_aio_ring_file(ctx);
-
         if (ctx->ring_pages && ctx->ring_pages != ctx->internal_pages) {
                 kfree(ctx->ring_pages);
                 ctx->ring_pages = NULL;
@@ -283,29 +287,38 @@ static int aio_migratepage(struct address_space *mapping, struct page *new,
 {
         struct kioctx *ctx;
         unsigned long flags;
+        pgoff_t idx;
         int rc;
 
         rc = 0;
 
-        /* Make sure the old page hasn't already been changed */
+        /* mapping->private_lock here protects against the kioctx teardown.  */
         spin_lock(&mapping->private_lock);
         ctx = mapping->private_data;
-        if (ctx) {
-                pgoff_t idx;
-                spin_lock_irqsave(&ctx->completion_lock, flags);
-                idx = old->index;
-                if (idx < (pgoff_t)ctx->nr_pages) {
-                        if (ctx->ring_pages[idx] != old)
-                                rc = -EAGAIN;
-                } else
-                        rc = -EINVAL;
-                spin_unlock_irqrestore(&ctx->completion_lock, flags);
+        if (!ctx) {
+                rc = -EINVAL;
+                goto out;
+        }
+
+        /* The ring_lock mutex.  The prevents aio_read_events() from writing
+         * to the ring's head, and prevents page migration from mucking in
+         * a partially initialized kiotx.
+         */
+        if (!mutex_trylock(&ctx->ring_lock)) {
+                rc = -EAGAIN;
+                goto out;
+        }
+
+        idx = old->index;
+        if (idx < (pgoff_t)ctx->nr_pages) {
+                /* Make sure the old page hasn't already been changed */
+                if (ctx->ring_pages[idx] != old)
+                        rc = -EAGAIN;
         } else
                 rc = -EINVAL;
-        spin_unlock(&mapping->private_lock);
 
         if (rc != 0)
-                return rc;
+                goto out_unlock;
 
         /* Writeback must be complete */
         BUG_ON(PageWriteback(old));
@@ -314,38 +327,26 @@ static int aio_migratepage(struct address_space *mapping, struct page *new,
         rc = migrate_page_move_mapping(mapping, new, old, NULL, mode, 1);
         if (rc != MIGRATEPAGE_SUCCESS) {
                 put_page(new);
-                return rc;
+                goto out_unlock;
         }
 
-        /* We can potentially race against kioctx teardown here.  Use the
-         * address_space's private data lock to protect the mapping's
-         * private_data.
+        /* Take completion_lock to prevent other writes to the ring buffer
+         * while the old page is copied to the new.  This prevents new
+         * events from being lost.
          */
-        spin_lock(&mapping->private_lock);
-        ctx = mapping->private_data;
-        if (ctx) {
-                pgoff_t idx;
-                spin_lock_irqsave(&ctx->completion_lock, flags);
-                migrate_page_copy(new, old);
-                idx = old->index;
-                if (idx < (pgoff_t)ctx->nr_pages) {
-                        /* And only do the move if things haven't changed */
-                        if (ctx->ring_pages[idx] == old)
-                                ctx->ring_pages[idx] = new;
-                        else
-                                rc = -EAGAIN;
-                } else
-                        rc = -EINVAL;
-                spin_unlock_irqrestore(&ctx->completion_lock, flags);
-        } else
-                rc = -EBUSY;
-        spin_unlock(&mapping->private_lock);
+        spin_lock_irqsave(&ctx->completion_lock, flags);
+        migrate_page_copy(new, old);
+        BUG_ON(ctx->ring_pages[idx] != old);
+        ctx->ring_pages[idx] = new;
+        spin_unlock_irqrestore(&ctx->completion_lock, flags);
 
-        if (rc == MIGRATEPAGE_SUCCESS)
-                put_page(old);
-        else
-                put_page(new);
+        /* The old page is no longer accessible. */
+        put_page(old);
 
+out_unlock:
+        mutex_unlock(&ctx->ring_lock);
+out:
+        spin_unlock(&mapping->private_lock);
         return rc;
 }
 #endif
@@ -380,7 +381,7 @@ static int aio_setup_ring(struct kioctx *ctx)
         file = aio_private_file(ctx, nr_pages);
         if (IS_ERR(file)) {
                 ctx->aio_ring_file = NULL;
-                return -EAGAIN;
+                return -ENOMEM;
         }
 
         ctx->aio_ring_file = file;
@@ -415,7 +416,7 @@ static int aio_setup_ring(struct kioctx *ctx)
 
         if (unlikely(i != nr_pages)) {
                 aio_free_ring(ctx);
-                return -EAGAIN;
+                return -ENOMEM;
         }
 
         ctx->mmap_size = nr_pages * PAGE_SIZE;
@@ -429,7 +430,7 @@ static int aio_setup_ring(struct kioctx *ctx)
         if (IS_ERR((void *)ctx->mmap_base)) {
                 ctx->mmap_size = 0;
                 aio_free_ring(ctx);
-                return -EAGAIN;
+                return -ENOMEM;
         }
 
         pr_debug("mmap address: 0x%08lx\n", ctx->mmap_base);
@@ -556,6 +557,10 @@ static int ioctx_add_table(struct kioctx *ctx, struct mm_struct *mm)
                                         rcu_read_unlock();
                                         spin_unlock(&mm->ioctx_lock);
 
+                                        /* While kioctx setup is in progress,
+                                         * we are protected from page migration
+                                         * changes ring_pages by ->ring_lock.
+                                         */
                                         ring = kmap_atomic(ctx->ring_pages[0]);
                                         ring->id = ctx->id;
                                         kunmap_atomic(ring);
@@ -640,24 +645,28 @@ static struct kioctx *ioctx_alloc(unsigned nr_events)
 
         ctx->max_reqs = nr_events;
 
-        if (percpu_ref_init(&ctx->users, free_ioctx_users))
-                goto err;
-
-        if (percpu_ref_init(&ctx->reqs, free_ioctx_reqs))
-                goto err;
-
         spin_lock_init(&ctx->ctx_lock);
         spin_lock_init(&ctx->completion_lock);
         mutex_init(&ctx->ring_lock);
+        /* Protect against page migration throughout kiotx setup by keeping
+         * the ring_lock mutex held until setup is complete. */
+        mutex_lock(&ctx->ring_lock);
         init_waitqueue_head(&ctx->wait);
 
         INIT_LIST_HEAD(&ctx->active_reqs);
 
+        if (percpu_ref_init(&ctx->users, free_ioctx_users))
+                goto err;
+
+        if (percpu_ref_init(&ctx->reqs, free_ioctx_reqs))
+                goto err;
+
         ctx->cpu = alloc_percpu(struct kioctx_cpu);
         if (!ctx->cpu)
                 goto err;
 
-        if (aio_setup_ring(ctx) < 0)
+        err = aio_setup_ring(ctx);
+        if (err < 0)
                 goto err;
 
         atomic_set(&ctx->reqs_available, ctx->nr_events - 1);
@@ -683,6 +692,9 @@ static struct kioctx *ioctx_alloc(unsigned nr_events)
         if (err)
                 goto err_cleanup;
 
+        /* Release the ring_lock mutex now that all setup is complete. */
+        mutex_unlock(&ctx->ring_lock);
+
         pr_debug("allocated ioctx %p[%ld]: mm=%p mask=0x%x\n",
                  ctx, ctx->user_id, mm, ctx->nr_events);
         return ctx;
@@ -692,6 +704,7 @@ err_cleanup:
 err_ctx:
         aio_free_ring(ctx);
 err:
+        mutex_unlock(&ctx->ring_lock);
         free_percpu(ctx->cpu);
         free_percpu(ctx->reqs.pcpu_count);
         free_percpu(ctx->users.pcpu_count);
@@ -1024,6 +1037,7 @@ static long aio_read_events_ring(struct kioctx *ctx,
 
         mutex_lock(&ctx->ring_lock);
 
+        /* Access to ->ring_pages here is protected by ctx->ring_lock. */
         ring = kmap_atomic(ctx->ring_pages[0]);
         head = ring->head;
         tail = ring->tail;
diff --git a/fs/bio.c b/fs/bio.c
index b1bc722b89aa..6f0362b77806 100644
--- a/fs/bio.c
+++ b/fs/bio.c
@@ -1002,7 +1002,7 @@ struct bio_map_data {
 };
 
 static void bio_set_map_data(struct bio_map_data *bmd, struct bio *bio,
-                             struct sg_iovec *iov, int iov_count,
+                             const struct sg_iovec *iov, int iov_count,
                              int is_our_pages)
 {
         memcpy(bmd->sgvecs, iov, sizeof(struct sg_iovec) * iov_count);
@@ -1022,7 +1022,7 @@ static struct bio_map_data *bio_alloc_map_data(int nr_segs,
                        sizeof(struct sg_iovec) * iov_count, gfp_mask);
 }
 
-static int __bio_copy_iov(struct bio *bio, struct sg_iovec *iov, int iov_count,
+static int __bio_copy_iov(struct bio *bio, const struct sg_iovec *iov, int iov_count,
                           int to_user, int from_user, int do_free_page)
 {
         int ret = 0, i;
@@ -1120,7 +1120,7 @@ EXPORT_SYMBOL(bio_uncopy_user);
  */
 struct bio *bio_copy_user_iov(struct request_queue *q,
                               struct rq_map_data *map_data,
-                              struct sg_iovec *iov, int iov_count,
+                              const struct sg_iovec *iov, int iov_count,
                               int write_to_vm, gfp_t gfp_mask)
 {
         struct bio_map_data *bmd;
@@ -1259,7 +1259,7 @@ EXPORT_SYMBOL(bio_copy_user);
 
 static struct bio *__bio_map_user_iov(struct request_queue *q,
                                       struct block_device *bdev,
-                                      struct sg_iovec *iov, int iov_count,
+                                      const struct sg_iovec *iov, int iov_count,
                                       int write_to_vm, gfp_t gfp_mask)
 {
         int i, j;
@@ -1407,7 +1407,7 @@ EXPORT_SYMBOL(bio_map_user);
  *      device. Returns an error pointer in case of error.
  */
 struct bio *bio_map_user_iov(struct request_queue *q, struct block_device *bdev,
-                             struct sg_iovec *iov, int iov_count,
+                             const struct sg_iovec *iov, int iov_count,
                              int write_to_vm, gfp_t gfp_mask)
 {
         struct bio *bio;
diff --git a/fs/block_dev.c b/fs/block_dev.c
index ba0d2b05bb78..552a8d13bc32 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -1518,7 +1518,7 @@ ssize_t blkdev_aio_write(struct kiocb *iocb, const struct iovec *iov,
         BUG_ON(iocb->ki_pos != pos);
 
         blk_start_plug(&plug);
-        ret = __generic_file_aio_write(iocb, iov, nr_segs, &iocb->ki_pos);
+        ret = __generic_file_aio_write(iocb, iov, nr_segs);
         if (ret > 0) {
                 ssize_t err;
 
diff --git a/fs/btrfs/async-thread.c b/fs/btrfs/async-thread.c
index ecb5832c0967..5a201d81049c 100644
--- a/fs/btrfs/async-thread.c
+++ b/fs/btrfs/async-thread.c
@@ -323,6 +323,8 @@ void btrfs_destroy_workqueue(struct btrfs_workqueue *wq)
 
 void btrfs_workqueue_set_max(struct btrfs_workqueue *wq, int max)
 {
+        if (!wq)
+                return;
         wq->normal->max_active = max;
         if (wq->high)
                 wq->high->max_active = max;
diff --git a/fs/btrfs/backref.c b/fs/btrfs/backref.c
index aad7201ad11b..10db21fa0926 100644
--- a/fs/btrfs/backref.c
+++ b/fs/btrfs/backref.c
@@ -330,7 +330,10 @@ static int __resolve_indirect_ref(struct btrfs_fs_info *fs_info,
                 goto out;
         }
 
-        root_level = btrfs_old_root_level(root, time_seq);
+        if (path->search_commit_root)
+                root_level = btrfs_header_level(root->commit_root);
+        else
+                root_level = btrfs_old_root_level(root, time_seq);
 
         if (root_level + 1 == level) {
                 srcu_read_unlock(&fs_info->subvol_srcu, index);
@@ -1099,9 +1102,9 @@ static int btrfs_find_all_leafs(struct btrfs_trans_handle *trans,
  *
  * returns 0 on success, < 0 on error.
  */
-int btrfs_find_all_roots(struct btrfs_trans_handle *trans,
-                                struct btrfs_fs_info *fs_info, u64 bytenr,
-                                u64 time_seq, struct ulist **roots)
+static int __btrfs_find_all_roots(struct btrfs_trans_handle *trans,
+                                  struct btrfs_fs_info *fs_info, u64 bytenr,
+                                  u64 time_seq, struct ulist **roots)
 {
         struct ulist *tmp;
         struct ulist_node *node = NULL;
@@ -1137,6 +1140,20 @@ int btrfs_find_all_roots(struct btrfs_trans_handle *trans,
         return 0;
 }
 
+int btrfs_find_all_roots(struct btrfs_trans_handle *trans,
+                         struct btrfs_fs_info *fs_info, u64 bytenr,
+                         u64 time_seq, struct ulist **roots)
+{
+        int ret;
+
+        if (!trans)
+                down_read(&fs_info->commit_root_sem);
+        ret = __btrfs_find_all_roots(trans, fs_info, bytenr, time_seq, roots);
+        if (!trans)
+                up_read(&fs_info->commit_root_sem);
+        return ret;
+}
+
 /*
  * this makes the path point to (inum INODE_ITEM ioff)
  */
@@ -1516,6 +1533,8 @@ int iterate_extent_inodes(struct btrfs_fs_info *fs_info,
                 if (IS_ERR(trans))
                         return PTR_ERR(trans);
                 btrfs_get_tree_mod_seq(fs_info, &tree_mod_seq_elem);
+        } else {
+                down_read(&fs_info->commit_root_sem);
         }
 
         ret = btrfs_find_all_leafs(trans, fs_info, extent_item_objectid,
@@ -1526,8 +1545,8 @@ int iterate_extent_inodes(struct btrfs_fs_info *fs_info,
 
         ULIST_ITER_INIT(&ref_uiter);
         while (!ret && (ref_node = ulist_next(refs, &ref_uiter))) {
-                ret = btrfs_find_all_roots(trans, fs_info, ref_node->val,
-                                           tree_mod_seq_elem.seq, &roots);
+                ret = __btrfs_find_all_roots(trans, fs_info, ref_node->val,
+                                             tree_mod_seq_elem.seq, &roots);
                 if (ret)
                         break;
                 ULIST_ITER_INIT(&root_uiter);
@@ -1549,6 +1568,8 @@ out:
         if (!search_commit_root) {
                 btrfs_put_tree_mod_seq(fs_info, &tree_mod_seq_elem);
                 btrfs_end_transaction(trans, fs_info->extent_root);
+        } else {
+                up_read(&fs_info->commit_root_sem);
         }
 
         return ret;
diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c
index 88d1b1eedc9c..1bcfcdb23cf4 100644
--- a/fs/btrfs/ctree.c
+++ b/fs/btrfs/ctree.c
@@ -2769,9 +2769,13 @@ again:
                  * the commit roots are read only
                  * so we always do read locks
                  */
+                if (p->need_commit_sem)
+                        down_read(&root->fs_info->commit_root_sem);
                 b = root->commit_root;
                 extent_buffer_get(b);
                 level = btrfs_header_level(b);
+                if (p->need_commit_sem)
+                        up_read(&root->fs_info->commit_root_sem);
                 if (!p->skip_locking)
                         btrfs_tree_read_lock(b);
         } else {
@@ -5360,7 +5364,6 @@ int btrfs_compare_trees(struct btrfs_root *left_root,
 {
         int ret;
         int cmp;
-        struct btrfs_trans_handle *trans = NULL;
         struct btrfs_path *left_path = NULL;
         struct btrfs_path *right_path = NULL;
         struct btrfs_key left_key;
@@ -5378,9 +5381,6 @@ int btrfs_compare_trees(struct btrfs_root *left_root,
         u64 right_blockptr;
         u64 left_gen;
         u64 right_gen;
-        u64 left_start_ctransid;
-        u64 right_start_ctransid;
-        u64 ctransid;
 
         left_path = btrfs_alloc_path();
         if (!left_path) {
@@ -5404,21 +5404,6 @@ int btrfs_compare_trees(struct btrfs_root *left_root,
         right_path->search_commit_root = 1;
         right_path->skip_locking = 1;
 
-        spin_lock(&left_root->root_item_lock);
-        left_start_ctransid = btrfs_root_ctransid(&left_root->root_item);
-        spin_unlock(&left_root->root_item_lock);
-
-        spin_lock(&right_root->root_item_lock);
-        right_start_ctransid = btrfs_root_ctransid(&right_root->root_item);
-        spin_unlock(&right_root->root_item_lock);
-
-        trans = btrfs_join_transaction(left_root);
-        if (IS_ERR(trans)) {
-                ret = PTR_ERR(trans);
-                trans = NULL;
-                goto out;
-        }
-
         /*
          * Strategy: Go to the first items of both trees. Then do
          *
@@ -5455,6 +5440,7 @@ int btrfs_compare_trees(struct btrfs_root *left_root,
          *   the right if possible or go up and right.
          */
 
+        down_read(&left_root->fs_info->commit_root_sem);
         left_level = btrfs_header_level(left_root->commit_root);
         left_root_level = left_level;
         left_path->nodes[left_level] = left_root->commit_root;
@@ -5464,6 +5450,7 @@ int btrfs_compare_trees(struct btrfs_root *left_root,
         right_root_level = right_level;
         right_path->nodes[right_level] = right_root->commit_root;
         extent_buffer_get(right_path->nodes[right_level]);
+        up_read(&left_root->fs_info->commit_root_sem);
 
         if (left_level == 0)
                 btrfs_item_key_to_cpu(left_path->nodes[left_level],
@@ -5482,67 +5469,6 @@ int btrfs_compare_trees(struct btrfs_root *left_root,
         advance_left = advance_right = 0;
 
         while (1) {
-                /*
-                 * We need to make sure the transaction does not get committed
-                 * while we do anything on commit roots. This means, we need to
-                 * join and leave transactions for every item that we process.
-                 */
-                if (trans && btrfs_should_end_transaction(trans, left_root)) {
-                        btrfs_release_path(left_path);
-                        btrfs_release_path(right_path);
-
-                        ret = btrfs_end_transaction(trans, left_root);
-                        trans = NULL;
-                        if (ret < 0)
-                                goto out;
-                }
-                /* now rejoin the transaction */
-                if (!trans) {
-                        trans = btrfs_join_transaction(left_root);
-                        if (IS_ERR(trans)) {
-                                ret = PTR_ERR(trans);
-                                trans = NULL;
-                                goto out;
-                        }
-
-                        spin_lock(&left_root->root_item_lock);
-                        ctransid = btrfs_root_ctransid(&left_root->root_item);
-                        spin_unlock(&left_root->root_item_lock);
-                        if (ctransid != left_start_ctransid)
-                                left_start_ctransid = 0;
-
-                        spin_lock(&right_root->root_item_lock);
-                        ctransid = btrfs_root_ctransid(&right_root->root_item);
-                        spin_unlock(&right_root->root_item_lock);
-                        if (ctransid != right_start_ctransid)
-                                right_start_ctransid = 0;
-
-                        if (!left_start_ctransid || !right_start_ctransid) {
-                                WARN(1, KERN_WARNING
-                                        "BTRFS: btrfs_compare_tree detected "
-                                        "a change in one of the trees while "
-                                        "iterating. This is probably a "
-                                        "bug.\n");
-                                ret = -EIO;
-                                goto out;
-                        }
-
-                        /*
-                         * the commit root may have changed, so start again
-                         * where we stopped
-                         */
-                        left_path->lowest_level = left_level;
-                        right_path->lowest_level = right_level;
-                        ret = btrfs_search_slot(NULL, left_root,
-                                        &left_key, left_path, 0, 0);
-                        if (ret < 0)
-                                goto out;
-                        ret = btrfs_search_slot(NULL, right_root,
-                                        &right_key, right_path, 0, 0);
-                        if (ret < 0)
-                                goto out;
-                }
-
                 if (advance_left && !left_end_reached) {
                         ret = tree_advance(left_root, left_path, &left_level,
                                         left_root_level,
@@ -5672,14 +5598,6 @@ out:
         btrfs_free_path(left_path);
         btrfs_free_path(right_path);
         kfree(tmp_buf);
-
-        if (trans) {
-                if (!ret)
-                        ret = btrfs_end_transaction(trans, left_root);
-                else
-                        btrfs_end_transaction(trans, left_root);
-        }
-
         return ret;
 }
 
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index bc96c03dd259..4c48df572bd6 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -609,6 +609,7 @@ struct btrfs_path {
         unsigned int skip_locking:1;
         unsigned int leave_spinning:1;
         unsigned int search_commit_root:1;
+        unsigned int need_commit_sem:1;
 };
 
 /*
@@ -986,7 +987,8 @@ struct btrfs_dev_replace_item {
 #define BTRFS_BLOCK_GROUP_RAID10        (1ULL << 6)
 #define BTRFS_BLOCK_GROUP_RAID5         (1ULL << 7)
 #define BTRFS_BLOCK_GROUP_RAID6         (1ULL << 8)
-#define BTRFS_BLOCK_GROUP_RESERVED      BTRFS_AVAIL_ALLOC_BIT_SINGLE
+#define BTRFS_BLOCK_GROUP_RESERVED      (BTRFS_AVAIL_ALLOC_BIT_SINGLE | \
+                                         BTRFS_SPACE_INFO_GLOBAL_RSV)
 
 enum btrfs_raid_types {
         BTRFS_RAID_RAID10,
@@ -1018,6 +1020,12 @@ enum btrfs_raid_types {
  */
 #define BTRFS_AVAIL_ALLOC_BIT_SINGLE    (1ULL << 48)
 
+/*
+ * A fake block group type that is used to communicate global block reserve
+ * size to userspace via the SPACE_INFO ioctl.
+ */
+#define BTRFS_SPACE_INFO_GLOBAL_RSV     (1ULL << 49)
+
 #define BTRFS_EXTENDED_PROFILE_MASK     (BTRFS_BLOCK_GROUP_PROFILE_MASK | \
                                          BTRFS_AVAIL_ALLOC_BIT_SINGLE)
 
@@ -1440,7 +1448,7 @@ struct btrfs_fs_info {
          */
         struct mutex ordered_extent_flush_mutex;
 
-        struct rw_semaphore extent_commit_sem;
+        struct rw_semaphore commit_root_sem;
 
         struct rw_semaphore cleanup_work_sem;
 
@@ -1711,7 +1719,6 @@ struct btrfs_root {
         struct btrfs_block_rsv *block_rsv;
 
         /* free ino cache stuff */
-        struct mutex fs_commit_mutex;
         struct btrfs_free_space_ctl *free_ino_ctl;
         enum btrfs_caching_type cached;
         spinlock_t cache_lock;
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index bd0f752b797b..029d46c2e170 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -329,6 +329,8 @@ static int verify_parent_transid(struct extent_io_tree *io_tree,
 {
         struct extent_state *cached_state = NULL;
         int ret;
+        bool need_lock = (current->journal_info ==
+                          (void *)BTRFS_SEND_TRANS_STUB);
 
         if (!parent_transid || btrfs_header_generation(eb) == parent_transid)
                 return 0;
@@ -336,6 +338,11 @@ static int verify_parent_transid(struct extent_io_tree *io_tree,
         if (atomic)
                 return -EAGAIN;
 
+        if (need_lock) {
+                btrfs_tree_read_lock(eb);
+                btrfs_set_lock_blocking_rw(eb, BTRFS_READ_LOCK);
+        }
+
         lock_extent_bits(io_tree, eb->start, eb->start + eb->len - 1,
                          0, &cached_state);
         if (extent_buffer_uptodate(eb) &&
@@ -347,10 +354,21 @@ static int verify_parent_transid(struct extent_io_tree *io_tree,
                        "found %llu\n",
                        eb->start, parent_transid, btrfs_header_generation(eb));
         ret = 1;
-        clear_extent_buffer_uptodate(eb);
+
+        /*
+         * Things reading via commit roots that don't have normal protection,
+         * like send, can have a really old block in cache that may point at a
+         * block that has been free'd and re-allocated.  So don't clear uptodate
+         * if we find an eb that is under IO (dirty/writeback) because we could
+         * end up reading in the stale data and then writing it back out and
+         * making everybody very sad.
+         */
+        if (!extent_buffer_under_io(eb))
+                clear_extent_buffer_uptodate(eb);
 out:
         unlock_extent_cached(io_tree, eb->start, eb->start + eb->len - 1,
                              &cached_state, GFP_NOFS);
+        btrfs_tree_read_unlock_blocking(eb);
         return ret;
 }
 
@@ -1546,7 +1564,6 @@ int btrfs_init_fs_root(struct btrfs_root *root)
         root->subv_writers = writers;
 
         btrfs_init_free_ino_ctl(root);
-        mutex_init(&root->fs_commit_mutex);
         spin_lock_init(&root->cache_lock);
         init_waitqueue_head(&root->cache_wait);
 
@@ -2324,7 +2341,7 @@ int open_ctree(struct super_block *sb,
         mutex_init(&fs_info->transaction_kthread_mutex);
         mutex_init(&fs_info->cleaner_mutex);
         mutex_init(&fs_info->volume_mutex);
-        init_rwsem(&fs_info->extent_commit_sem);
+        init_rwsem(&fs_info->commit_root_sem);
         init_rwsem(&fs_info->cleanup_work_sem);
         init_rwsem(&fs_info->subvol_sem);
         sema_init(&fs_info->uuid_tree_rescan_sem, 1);
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index c6b6a6e3e735..1306487c82cf 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -419,7 +419,7 @@ static noinline void caching_thread(struct btrfs_work *work)
 again:
         mutex_lock(&caching_ctl->mutex);
         /* need to make sure the commit_root doesn't disappear */
-        down_read(&fs_info->extent_commit_sem);
+        down_read(&fs_info->commit_root_sem);
 
 next:
         ret = btrfs_search_slot(NULL, extent_root, &key, path, 0, 0);
@@ -443,10 +443,10 @@ next:
                                 break;
 
                         if (need_resched() ||
-                            rwsem_is_contended(&fs_info->extent_commit_sem)) {
+                            rwsem_is_contended(&fs_info->commit_root_sem)) {
                                 caching_ctl->progress = last;
                                 btrfs_release_path(path);
-                                up_read(&fs_info->extent_commit_sem);
+                                up_read(&fs_info->commit_root_sem);
                                 mutex_unlock(&caching_ctl->mutex);
                                 cond_resched();
                                 goto again;
@@ -513,7 +513,7 @@ next:
 
 err:
         btrfs_free_path(path);
-        up_read(&fs_info->extent_commit_sem);
+        up_read(&fs_info->commit_root_sem);
 
         free_excluded_extents(extent_root, block_group);
 
@@ -633,10 +633,10 @@ static int cache_block_group(struct btrfs_block_group_cache *cache,
                 return 0;
         }
 
-        down_write(&fs_info->extent_commit_sem);
+        down_write(&fs_info->commit_root_sem);
         atomic_inc(&caching_ctl->count);
         list_add_tail(&caching_ctl->list, &fs_info->caching_block_groups);
-        up_write(&fs_info->extent_commit_sem);
+        up_write(&fs_info->commit_root_sem);
 
         btrfs_get_block_group(cache);
 
@@ -2444,7 +2444,8 @@ static noinline int __btrfs_run_delayed_refs(struct btrfs_trans_handle *trans,
                         spin_unlock(&locked_ref->lock);
                         spin_lock(&delayed_refs->lock);
                         spin_lock(&locked_ref->lock);
-                        if (rb_first(&locked_ref->ref_root)) {
+                        if (rb_first(&locked_ref->ref_root) ||
+                            locked_ref->extent_op) {
                                 spin_unlock(&locked_ref->lock);
                                 spin_unlock(&delayed_refs->lock);
                                 continue;
@@ -5470,7 +5471,7 @@ void btrfs_prepare_extent_commit(struct btrfs_trans_handle *trans,
         struct btrfs_block_group_cache *cache;
         struct btrfs_space_info *space_info;
 
-        down_write(&fs_info->extent_commit_sem);
+        down_write(&fs_info->commit_root_sem);
 
         list_for_each_entry_safe(caching_ctl, next,
                                  &fs_info->caching_block_groups, list) {
@@ -5489,7 +5490,7 @@ void btrfs_prepare_extent_commit(struct btrfs_trans_handle *trans,
         else
                 fs_info->pinned_extents = &fs_info->freed_extents[0];
 
-        up_write(&fs_info->extent_commit_sem);
+        up_write(&fs_info->commit_root_sem);
 
         list_for_each_entry_rcu(space_info, &fs_info->space_info, list)
                 percpu_counter_set(&space_info->total_bytes_pinned, 0);
@@ -5744,6 +5745,8 @@ static int __btrfs_free_extent(struct btrfs_trans_handle *trans,
                         "unable to find ref byte nr %llu parent %llu root %llu  owner %llu offset %llu",
                         bytenr, parent, root_objectid, owner_objectid,
                         owner_offset);
+                btrfs_abort_transaction(trans, extent_root, ret);
+                goto out;
         } else {
                 btrfs_abort_transaction(trans, extent_root, ret);
                 goto out;
@@ -8255,14 +8258,14 @@ int btrfs_free_block_groups(struct btrfs_fs_info *info)
         struct btrfs_caching_control *caching_ctl;
         struct rb_node *n;
 
-        down_write(&info->extent_commit_sem);
+        down_write(&info->commit_root_sem);
         while (!list_empty(&info->caching_block_groups)) {
                 caching_ctl = list_entry(info->caching_block_groups.next,
                                          struct btrfs_caching_control, list);
                 list_del(&caching_ctl->list);
                 put_caching_control(caching_ctl);
         }
-        up_write(&info->extent_commit_sem);
+        up_write(&info->commit_root_sem);
 
         spin_lock(&info->block_group_cache_lock);
         while ((n = rb_last(&info->block_group_cache_tree)) != NULL) {
@@ -8336,9 +8339,15 @@ static void __link_block_group(struct btrfs_space_info *space_info,
                                struct btrfs_block_group_cache *cache)
 {
         int index = get_block_group_index(cache);
+        bool first = false;
 
         down_write(&space_info->groups_sem);
-        if (list_empty(&space_info->block_groups[index])) {
+        if (list_empty(&space_info->block_groups[index]))
+                first = true;
+        list_add_tail(&cache->list, &space_info->block_groups[index]);
+        up_write(&space_info->groups_sem);
+
+        if (first) {
                 struct kobject *kobj = &space_info->block_group_kobjs[index];
                 int ret;
 
@@ -8350,8 +8359,6 @@ static void __link_block_group(struct btrfs_space_info *space_info,
                         kobject_put(&space_info->kobj);
                 }
         }
-        list_add_tail(&cache->list, &space_info->block_groups[index]);
-        up_write(&space_info->groups_sem);
 }
 
 static struct btrfs_block_group_cache *
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index ae69a00387e7..3955e475ceec 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -749,6 +749,7 @@ again:
                  * our range starts
                  */
                 node = tree_search(tree, start);
+process_node:
                 if (!node)
                         break;
 
@@ -769,7 +770,10 @@ again:
                 if (start > end)
                         break;
 
-                cond_resched_lock(&tree->lock);
+                if (!cond_resched_lock(&tree->lock)) {
+                        node = rb_next(node);
+                        goto process_node;
+                }
         }
 out:
         spin_unlock(&tree->lock);
@@ -4306,7 +4310,7 @@ static void __free_extent_buffer(struct extent_buffer *eb)
         kmem_cache_free(extent_buffer_cache, eb);
 }
 
-static int extent_buffer_under_io(struct extent_buffer *eb)
+int extent_buffer_under_io(struct extent_buffer *eb)
 {
         return (atomic_read(&eb->io_pages) ||
                 test_bit(EXTENT_BUFFER_WRITEBACK, &eb->bflags) ||
diff --git a/fs/btrfs/extent_io.h b/fs/btrfs/extent_io.h
index 58b27e5ab521..c488b45237bf 100644
--- a/fs/btrfs/extent_io.h
+++ b/fs/btrfs/extent_io.h
@@ -320,6 +320,7 @@ int set_extent_buffer_dirty(struct extent_buffer *eb);
 int set_extent_buffer_uptodate(struct extent_buffer *eb);
 int clear_extent_buffer_uptodate(struct extent_buffer *eb);
 int extent_buffer_uptodate(struct extent_buffer *eb);
+int extent_buffer_under_io(struct extent_buffer *eb);
 int map_private_extent_buffer(struct extent_buffer *eb, unsigned long offset,
                       unsigned long min_len, char **map,
                       unsigned long *map_start,
diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index c660527af838..eb742c07e7a4 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -425,13 +425,8 @@ static noinline int btrfs_copy_from_user(loff_t pos, int num_pages,
                 struct page *page = prepared_pages[pg];
                 /*
                  * Copy data from userspace to the current page
-                 *
-                 * Disable pagefault to avoid recursive lock since
-                 * the pages are already locked
                  */
-                pagefault_disable();
                 copied = iov_iter_copy_from_user_atomic(page, i, offset, count);
-                pagefault_enable();
 
                 /* Flush processor's dcache for this page */
                 flush_dcache_page(page);
@@ -1665,7 +1660,7 @@ again:
 static ssize_t __btrfs_direct_write(struct kiocb *iocb,
                                     const struct iovec *iov,
                                     unsigned long nr_segs, loff_t pos,
-                                    loff_t *ppos, size_t count, size_t ocount)
+                                    size_t count, size_t ocount)
 {
         struct file *file = iocb->ki_filp;
         struct iov_iter i;
@@ -1674,7 +1669,7 @@ static ssize_t __btrfs_direct_write(struct kiocb *iocb,
         loff_t endbyte;
         int err;
 
-        written = generic_file_direct_write(iocb, iov, &nr_segs, pos, ppos,
+        written = generic_file_direct_write(iocb, iov, &nr_segs, pos,
                                             count, ocount);
 
         if (written < 0 || written == count)
@@ -1693,7 +1688,7 @@ static ssize_t __btrfs_direct_write(struct kiocb *iocb,
         if (err)
                 goto out;
         written += written_buffered;
-        *ppos = pos + written_buffered;
+        iocb->ki_pos = pos + written_buffered;
         invalidate_mapping_pages(file->f_mapping, pos >> PAGE_CACHE_SHIFT,
                                  endbyte >> PAGE_CACHE_SHIFT);
 out:
@@ -1725,8 +1720,8 @@ static ssize_t btrfs_file_aio_write(struct kiocb *iocb,
         struct file *file = iocb->ki_filp;
         struct inode *inode = file_inode(file);
         struct btrfs_root *root = BTRFS_I(inode)->root;
-        loff_t *ppos = &iocb->ki_pos;
         u64 start_pos;
+        u64 end_pos;
         ssize_t num_written = 0;
         ssize_t err = 0;
         size_t count, ocount;
@@ -1781,7 +1776,9 @@ static ssize_t btrfs_file_aio_write(struct kiocb *iocb,
 
         start_pos = round_down(pos, root->sectorsize);
         if (start_pos > i_size_read(inode)) {
-                err = btrfs_cont_expand(inode, i_size_read(inode), start_pos);
+                /* Expand hole size to cover write data, preventing empty gap */
+                end_pos = round_up(pos + iov->iov_len, root->sectorsize);
+                err = btrfs_cont_expand(inode, i_size_read(inode), end_pos);
                 if (err) {
                         mutex_unlock(&inode->i_mutex);
                         goto out;
@@ -1793,7 +1790,7 @@ static ssize_t btrfs_file_aio_write(struct kiocb *iocb,
 
         if (unlikely(file->f_flags & O_DIRECT)) {
                 num_written = __btrfs_direct_write(iocb, iov, nr_segs,
-                                                   pos, ppos, count, ocount);
+                                                   pos, count, ocount);
         } else {
                 struct iov_iter i;
 
@@ -1801,7 +1798,7 @@ static ssize_t btrfs_file_aio_write(struct kiocb *iocb,
 
                 num_written = __btrfs_buffered_write(file, &i, pos);
                 if (num_written > 0)
-                        *ppos = pos + num_written;
+                        iocb->ki_pos = pos + num_written;
         }
 
         mutex_unlock(&inode->i_mutex);
diff --git a/fs/btrfs/inode-map.c b/fs/btrfs/inode-map.c
index ab485e57b6fe..cc8ca193d830 100644
--- a/fs/btrfs/inode-map.c
+++ b/fs/btrfs/inode-map.c
@@ -55,7 +55,7 @@ static int caching_kthread(void *data)
         key.type = BTRFS_INODE_ITEM_KEY;
 again:
         /* need to make sure the commit_root doesn't disappear */
-        mutex_lock(&root->fs_commit_mutex);
+        down_read(&fs_info->commit_root_sem);
 
         ret = btrfs_search_slot(NULL, root, &key, path, 0, 0);
         if (ret < 0)
@@ -88,7 +88,7 @@ again:
                                 btrfs_item_key_to_cpu(leaf, &key, 0);
                                 btrfs_release_path(path);
                                 root->cache_progress = last;
-                                mutex_unlock(&root->fs_commit_mutex);
+                                up_read(&fs_info->commit_root_sem);
                                 schedule_timeout(1);
                                 goto again;
                         } else
@@ -127,7 +127,7 @@ next:
         btrfs_unpin_free_ino(root);
 out:
         wake_up(&root->cache_wait);
-        mutex_unlock(&root->fs_commit_mutex);
+        up_read(&fs_info->commit_root_sem);
 
         btrfs_free_path(path);
 
@@ -223,11 +223,11 @@ again:
                  * or the caching work is done.
                  */
 
-                mutex_lock(&root->fs_commit_mutex);
+                down_write(&root->fs_info->commit_root_sem);
                 spin_lock(&root->cache_lock);
                 if (root->cached == BTRFS_CACHE_FINISHED) {
                         spin_unlock(&root->cache_lock);
-                        mutex_unlock(&root->fs_commit_mutex);
+                        up_write(&root->fs_info->commit_root_sem);
                         goto again;
                 }
                 spin_unlock(&root->cache_lock);
@@ -240,7 +240,7 @@ again:
                 else
                         __btrfs_add_free_space(pinned, objectid, 1);
 
-                mutex_unlock(&root->fs_commit_mutex);
+                up_write(&root->fs_info->commit_root_sem);
         }
 }
 
@@ -250,7 +250,7 @@ again:
  * and others will just be dropped, because the commit root we were
  * searching has changed.
  *
- * Must be called with root->fs_commit_mutex held
+ * Must be called with root->fs_info->commit_root_sem held
  */
 void btrfs_unpin_free_ino(struct btrfs_root *root)
 {
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 06e9a4152b14..5f805bc944fa 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -394,6 +394,14 @@ static noinline int compress_file_range(struct inode *inode,
             (start > 0 || end + 1 < BTRFS_I(inode)->disk_i_size))
                 btrfs_add_inode_defrag(NULL, inode);
 
+        /*
+         * skip compression for a small file range(<=blocksize) that
+         * isn't an inline extent, since it dosen't save disk space at all.
+         */
+        if ((end - start + 1) <= blocksize &&
+            (start > 0 || end + 1 < BTRFS_I(inode)->disk_i_size))
+                goto cleanup_and_bail_uncompressed;
+
         actual_end = min_t(u64, isize, end + 1);
 again:
         will_compress = 0;
@@ -1271,6 +1279,15 @@ next_slot:
                         disk_bytenr += cur_offset - found_key.offset;
                         num_bytes = min(end + 1, extent_end) - cur_offset;
                         /*
+                         * if there are pending snapshots for this root,
+                         * we fall into common COW way.
+                         */
+                        if (!nolock) {
+                                err = btrfs_start_nocow_write(root);
+                                if (!err)
+                                        goto out_check;
+                        }
+                        /*
                          * force cow if csum exists in the range.
                          * this ensure that csum for a given extent are
                          * either valid or do not exist.
@@ -1289,6 +1306,8 @@ next_slot:
 out_check:
                 if (extent_end <= start) {
                         path->slots[0]++;
+                        if (!nolock && nocow)
+                                btrfs_end_nocow_write(root);
                         goto next_slot;
                 }
                 if (!nocow) {
@@ -1306,8 +1325,11 @@ out_check:
                         ret = cow_file_range(inode, locked_page,
                                              cow_start, found_key.offset - 1,
                                              page_started, nr_written, 1);
-                        if (ret)
+                        if (ret) {
+                                if (!nolock && nocow)
+                                        btrfs_end_nocow_write(root);
                                 goto error;
+                        }
                         cow_start = (u64)-1;
                 }
 
@@ -1354,8 +1376,11 @@ out_check:
                     BTRFS_DATA_RELOC_TREE_OBJECTID) {
                         ret = btrfs_reloc_clone_csums(inode, cur_offset,
                                                       num_bytes);
-                        if (ret)
+                        if (ret) {
+                                if (!nolock && nocow)
+                                        btrfs_end_nocow_write(root);
                                 goto error;
+                        }
                 }
 
                 extent_clear_unlock_delalloc(inode, cur_offset,
@@ -1363,6 +1388,8 @@ out_check:
                                              locked_page, EXTENT_LOCKED |
                                              EXTENT_DELALLOC, PAGE_UNLOCK |
                                              PAGE_SET_PRIVATE2);
+                if (!nolock && nocow)
+                        btrfs_end_nocow_write(root);
                 cur_offset = extent_end;
                 if (cur_offset > end)
                         break;
@@ -8476,19 +8503,20 @@ static int __start_delalloc_inodes(struct btrfs_root *root, int delay_iput,
                         else
                                 iput(inode);
                         ret = -ENOMEM;
-                        break;
+                        goto out;
                 }
                 list_add_tail(&work->list, &works);
                 btrfs_queue_work(root->fs_info->flush_workers,
                                  &work->work);
                 ret++;
                 if (nr != -1 && ret >= nr)
-                        break;
+                        goto out;
                 cond_resched();
                 spin_lock(&root->delalloc_lock);
         }
         spin_unlock(&root->delalloc_lock);
 
+out:
         list_for_each_entry_safe(work, next, &works, list) {
                 list_del_init(&work->list);
                 btrfs_wait_and_free_delalloc_work(work);
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 0401397b5c92..e79ff6b90cb7 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -1472,6 +1472,7 @@ static noinline int btrfs_ioctl_resize(struct file *file,
         struct btrfs_trans_handle *trans;
         struct btrfs_device *device = NULL;
         char *sizestr;
+        char *retptr;
         char *devstr = NULL;
         int ret = 0;
         int mod = 0;
@@ -1539,8 +1540,8 @@ static noinline int btrfs_ioctl_resize(struct file *file,
                         mod = 1;
                         sizestr++;
                 }
-                new_size = memparse(sizestr, NULL);
-                if (new_size == 0) {
+                new_size = memparse(sizestr, &retptr);
+                if (*retptr != '\0' || new_size == 0) {
                         ret = -EINVAL;
                         goto out_free;
                 }
@@ -3140,8 +3141,9 @@ process_slot:
                                                          new_key.offset + datal,
                                                          1);
                                 if (ret) {
-                                        btrfs_abort_transaction(trans, root,
-                                                                ret);
+                                        if (ret != -EINVAL)
+                                                btrfs_abort_transaction(trans,
+                                                        root, ret);
                                         btrfs_end_transaction(trans, root);
                                         goto out;
                                 }
@@ -3538,6 +3540,11 @@ static long btrfs_ioctl_space_info(struct btrfs_root *root, void __user *arg)
                 up_read(&info->groups_sem);
         }
 
+        /*
+         * Global block reserve, exported as a space_info
+         */
+        slot_count++;
+
         /* space_slots == 0 means they are asking for a count */
         if (space_args.space_slots == 0) {
                 space_args.total_spaces = slot_count;
@@ -3596,6 +3603,21 @@ static long btrfs_ioctl_space_info(struct btrfs_root *root, void __user *arg)
                 up_read(&info->groups_sem);
         }
 
+        /*
+         * Add global block reserve
+         */
+        if (slot_count) {
+                struct btrfs_block_rsv *block_rsv = &root->fs_info->global_block_rsv;
+
+                spin_lock(&block_rsv->lock);
+                space.total_bytes = block_rsv->size;
+                space.used_bytes = block_rsv->size - block_rsv->reserved;
+                spin_unlock(&block_rsv->lock);
+                space.flags = BTRFS_SPACE_INFO_GLOBAL_RSV;
+                memcpy(dest, &space, sizeof(space));
+                space_args.total_spaces++;
+        }
+
         user_dest = (struct btrfs_ioctl_space_info __user *)
                 (arg + sizeof(struct btrfs_ioctl_space_args));
 
@@ -4531,9 +4553,8 @@ static long btrfs_ioctl_set_received_subvol_32(struct file *file,
         }
 
         args64 = kmalloc(sizeof(*args64), GFP_NOFS);
-        if (IS_ERR(args64)) {
-                ret = PTR_ERR(args64);
-                args64 = NULL;
+        if (!args64) {
+                ret = -ENOMEM;
                 goto out;
         }
 
diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c
index def428a25b2a..7f92ab1daa87 100644
--- a/fs/btrfs/relocation.c
+++ b/fs/btrfs/relocation.c
@@ -2317,7 +2317,6 @@ void free_reloc_roots(struct list_head *list)
 static noinline_for_stack
 int merge_reloc_roots(struct reloc_control *rc)
 {
-        struct btrfs_trans_handle *trans;
         struct btrfs_root *root;
         struct btrfs_root *reloc_root;
         u64 last_snap;
@@ -2375,26 +2374,6 @@ again:
                                 list_add_tail(&reloc_root->root_list,
                                               &reloc_roots);
                         goto out;
-                } else if (!ret) {
-                        /*
-                         * recover the last snapshot tranid to avoid
-                         * the space balance break NOCOW.
-                         */
-                        root = read_fs_root(rc->extent_root->fs_info,
-                                            objectid);
-                        if (IS_ERR(root))
-                                continue;
-
-                        trans = btrfs_join_transaction(root);
-                        BUG_ON(IS_ERR(trans));
-
-                        /* Check if the fs/file tree was snapshoted or not. */
-                        if (btrfs_root_last_snapshot(&root->root_item) ==
-                            otransid - 1)
-                                btrfs_set_root_last_snapshot(&root->root_item,
-                                                             last_snap);
-                                
-                        btrfs_end_transaction(trans, root);
                 }
         }
 
diff --git a/fs/btrfs/scrub.c b/fs/btrfs/scrub.c
index 93e6d7172844..0be77993378e 100644
--- a/fs/btrfs/scrub.c
+++ b/fs/btrfs/scrub.c
@@ -2235,6 +2235,47 @@ behind_scrub_pages:
         return 0;
 }
 
+/*
+ * Given a physical address, this will calculate it's
+ * logical offset. if this is a parity stripe, it will return
+ * the most left data stripe's logical offset.
+ *
+ * return 0 if it is a data stripe, 1 means parity stripe.
+ */
+static int get_raid56_logic_offset(u64 physical, int num,
+                                   struct map_lookup *map, u64 *offset)
+{
+        int i;
+        int j = 0;
+        u64 stripe_nr;
+        u64 last_offset;
+        int stripe_index;
+        int rot;
+
+        last_offset = (physical - map->stripes[num].physical) *
+                      nr_data_stripes(map);
+        *offset = last_offset;
+        for (i = 0; i < nr_data_stripes(map); i++) {
+                *offset = last_offset + i * map->stripe_len;
+
+                stripe_nr = *offset;
+                do_div(stripe_nr, map->stripe_len);
+                do_div(stripe_nr, nr_data_stripes(map));
+
+                /* Work out the disk rotation on this stripe-set */
+                rot = do_div(stripe_nr, map->num_stripes);
+                /* calculate which stripe this data locates */
+                rot += i;
+                stripe_index = rot % map->num_stripes;
+                if (stripe_index == num)
+                        return 0;
+                if (stripe_index < num)
+                        j++;
+        }
+        *offset = last_offset + j * map->stripe_len;
+        return 1;
+}
+
 static noinline_for_stack int scrub_stripe(struct scrub_ctx *sctx,
                                            struct map_lookup *map,
                                            struct btrfs_device *scrub_dev,
@@ -2256,6 +2297,7 @@ static noinline_for_stack int scrub_stripe(struct scrub_ctx *sctx,
         u64 physical;
         u64 logical;
         u64 logic_end;
+        u64 physical_end;
         u64 generation;
         int mirror_num;
         struct reada_control *reada1;
@@ -2269,16 +2311,10 @@ static noinline_for_stack int scrub_stripe(struct scrub_ctx *sctx,
         u64 extent_len;
         struct btrfs_device *extent_dev;
         int extent_mirror_num;
-        int stop_loop;
-
-        if (map->type & (BTRFS_BLOCK_GROUP_RAID5 |
-                         BTRFS_BLOCK_GROUP_RAID6)) {
-                if (num >= nr_data_stripes(map)) {
-                        return 0;
-                }
-        }
+        int stop_loop = 0;
 
         nstripes = length;
+        physical = map->stripes[num].physical;
         offset = 0;
         do_div(nstripes, map->stripe_len);
         if (map->type & BTRFS_BLOCK_GROUP_RAID0) {
@@ -2296,6 +2332,11 @@ static noinline_for_stack int scrub_stripe(struct scrub_ctx *sctx,
         } else if (map->type & BTRFS_BLOCK_GROUP_DUP) {
                 increment = map->stripe_len;
                 mirror_num = num % map->num_stripes + 1;
+        } else if (map->type & (BTRFS_BLOCK_GROUP_RAID5 |
+                                BTRFS_BLOCK_GROUP_RAID6)) {
+                get_raid56_logic_offset(physical, num, map, &offset);
+                increment = map->stripe_len * nr_data_stripes(map);
+                mirror_num = 1;
         } else {
                 increment = map->stripe_len;
                 mirror_num = 1;
@@ -2319,7 +2360,15 @@ static noinline_for_stack int scrub_stripe(struct scrub_ctx *sctx,
          * to not hold off transaction commits
          */
         logical = base + offset;
-
+        physical_end = physical + nstripes * map->stripe_len;
+        if (map->type & (BTRFS_BLOCK_GROUP_RAID5 |
+                         BTRFS_BLOCK_GROUP_RAID6)) {
+                get_raid56_logic_offset(physical_end, num,
+                                        map, &logic_end);
+                logic_end += base;
+        } else {
+                logic_end = logical + increment * nstripes;
+        }
         wait_event(sctx->list_wait,
                    atomic_read(&sctx->bios_in_flight) == 0);
         scrub_blocked_if_needed(fs_info);
@@ -2328,7 +2377,7 @@ static noinline_for_stack int scrub_stripe(struct scrub_ctx *sctx,
         key_start.objectid = logical;
         key_start.type = BTRFS_EXTENT_ITEM_KEY;
         key_start.offset = (u64)0;
-        key_end.objectid = base + offset + nstripes * increment;
+        key_end.objectid = logic_end;
         key_end.type = BTRFS_METADATA_ITEM_KEY;
         key_end.offset = (u64)-1;
         reada1 = btrfs_reada_add(root, &key_start, &key_end);
@@ -2338,7 +2387,7 @@ static noinline_for_stack int scrub_stripe(struct scrub_ctx *sctx,
         key_start.offset = logical;
         key_end.objectid = BTRFS_EXTENT_CSUM_OBJECTID;
         key_end.type = BTRFS_EXTENT_CSUM_KEY;
-        key_end.offset = base + offset + nstripes * increment;
+        key_end.offset = logic_end;
         reada2 = btrfs_reada_add(csum_root, &key_start, &key_end);
 
         if (!IS_ERR(reada1))
@@ -2356,11 +2405,17 @@ static noinline_for_stack int scrub_stripe(struct scrub_ctx *sctx,
         /*
          * now find all extents for each stripe and scrub them
          */
-        logical = base + offset;
-        physical = map->stripes[num].physical;
-        logic_end = logical + increment * nstripes;
         ret = 0;
-        while (logical < logic_end) {
+        while (physical < physical_end) {
+                /* for raid56, we skip parity stripe */
+                if (map->type & (BTRFS_BLOCK_GROUP_RAID5 |
+                                BTRFS_BLOCK_GROUP_RAID6)) {
+                        ret = get_raid56_logic_offset(physical, num,
+                                        map, &logical);
+                        logical += base;
+                        if (ret)
+                                goto skip;
+                }
                 /*
                  * canceled?
                  */
@@ -2504,15 +2559,29 @@ again:
                         scrub_free_csums(sctx);
                         if (extent_logical + extent_len <
                             key.objectid + bytes) {
-                                logical += increment;
-                                physical += map->stripe_len;
-
+                                if (map->type & (BTRFS_BLOCK_GROUP_RAID5 |
+                                        BTRFS_BLOCK_GROUP_RAID6)) {
+                                        /*
+                                         * loop until we find next data stripe
+                                         * or we have finished all stripes.
+                                         */
+                                        do {
+                                                physical += map->stripe_len;
+                                                ret = get_raid56_logic_offset(
+                                                                physical, num,
+                                                                map, &logical);
+                                                logical += base;
+                                        } while (physical < physical_end && ret);
+                                } else {
+                                        physical += map->stripe_len;
+                                        logical += increment;
+                                }
                                 if (logical < key.objectid + bytes) {
                                         cond_resched();
                                         goto again;
                                 }
 
-                                if (logical >= logic_end) {
+                                if (physical >= physical_end) {
                                         stop_loop = 1;
                                         break;
                                 }
@@ -2521,6 +2590,7 @@ next:
                         path->slots[0]++;
                 }
                 btrfs_release_path(path);
+skip:
                 logical += increment;
                 physical += map->stripe_len;
                 spin_lock(&sctx->stat_lock);
diff --git a/fs/btrfs/send.c b/fs/btrfs/send.c
index 9b6da9d55f9a..1ac3ca98c429 100644
--- a/fs/btrfs/send.c
+++ b/fs/btrfs/send.c
@@ -493,6 +493,7 @@ static struct btrfs_path *alloc_path_for_send(void)
                 return NULL;
         path->search_commit_root = 1;
         path->skip_locking = 1;
+        path->need_commit_sem = 1;
         return path;
 }
 
@@ -771,29 +772,22 @@ out:
 /*
  * Helper function to retrieve some fields from an inode item.
  */
-static int get_inode_info(struct btrfs_root *root,
-                          u64 ino, u64 *size, u64 *gen,
-                          u64 *mode, u64 *uid, u64 *gid,
-                          u64 *rdev)
+static int __get_inode_info(struct btrfs_root *root, struct btrfs_path *path,
+                          u64 ino, u64 *size, u64 *gen, u64 *mode, u64 *uid,
+                          u64 *gid, u64 *rdev)
 {
         int ret;
         struct btrfs_inode_item *ii;
         struct btrfs_key key;
-        struct btrfs_path *path;
-
-        path = alloc_path_for_send();
-        if (!path)
-                return -ENOMEM;
 
         key.objectid = ino;
         key.type = BTRFS_INODE_ITEM_KEY;
         key.offset = 0;
         ret = btrfs_search_slot(NULL, root, &key, path, 0, 0);
-        if (ret < 0)
-                goto out;
         if (ret) {
-                ret = -ENOENT;
-                goto out;
+                if (ret > 0)
+                        ret = -ENOENT;
+                return ret;
         }
 
         ii = btrfs_item_ptr(path->nodes[0], path->slots[0],
@@ -811,7 +805,22 @@ static int get_inode_info(struct btrfs_root *root,
         if (rdev)
                 *rdev = btrfs_inode_rdev(path->nodes[0], ii);
 
-out:
+        return ret;
+}
+
+static int get_inode_info(struct btrfs_root *root,
+                          u64 ino, u64 *size, u64 *gen,
+                          u64 *mode, u64 *uid, u64 *gid,
+                          u64 *rdev)
+{
+        struct btrfs_path *path;
+        int ret;
+
+        path = alloc_path_for_send();
+        if (!path)
+                return -ENOMEM;
+        ret = __get_inode_info(root, path, ino, size, gen, mode, uid, gid,
+                               rdev);
         btrfs_free_path(path);
         return ret;
 }
@@ -1085,6 +1094,7 @@ out:
 struct backref_ctx {
         struct send_ctx *sctx;
 
+        struct btrfs_path *path;
         /* number of total found references */
         u64 found;
 
@@ -1155,8 +1165,9 @@ static int __iterate_backrefs(u64 ino, u64 offset, u64 root, void *ctx_)
          * There are inodes that have extents that lie behind its i_size. Don't
          * accept clones from these extents.
          */
-        ret = get_inode_info(found->root, ino, &i_size, NULL, NULL, NULL, NULL,
-                        NULL);
+        ret = __get_inode_info(found->root, bctx->path, ino, &i_size, NULL, NULL,
+                               NULL, NULL, NULL);
+        btrfs_release_path(bctx->path);
         if (ret < 0)
                 return ret;
 
@@ -1235,12 +1246,17 @@ static int find_extent_clone(struct send_ctx *sctx,
         if (!tmp_path)
                 return -ENOMEM;
 
+        /* We only use this path under the commit sem */
+        tmp_path->need_commit_sem = 0;
+
         backref_ctx = kmalloc(sizeof(*backref_ctx), GFP_NOFS);
         if (!backref_ctx) {
                 ret = -ENOMEM;
                 goto out;
         }
 
+        backref_ctx->path = tmp_path;
+
         if (data_offset >= ino_size) {
                 /*
                  * There may be extents that lie behind the file's size.
@@ -1268,8 +1284,10 @@ static int find_extent_clone(struct send_ctx *sctx,
         }
         logical = disk_byte + btrfs_file_extent_offset(eb, fi);
 
+        down_read(&sctx->send_root->fs_info->commit_root_sem);
         ret = extent_from_logical(sctx->send_root->fs_info, disk_byte, tmp_path,
                                   &found_key, &flags);
+        up_read(&sctx->send_root->fs_info->commit_root_sem);
         btrfs_release_path(tmp_path);
 
         if (ret < 0)
@@ -4418,6 +4436,9 @@ static int send_hole(struct send_ctx *sctx, u64 end)
         p = fs_path_alloc();
         if (!p)
                 return -ENOMEM;
+        ret = get_cur_path(sctx, sctx->cur_ino, sctx->cur_inode_gen, p);
+        if (ret < 0)
+                goto tlv_put_failure;
         memset(sctx->read_buf, 0, BTRFS_SEND_READ_SIZE);
         while (offset < end) {
                 len = min_t(u64, end - offset, BTRFS_SEND_READ_SIZE);
@@ -4425,9 +4446,6 @@ static int send_hole(struct send_ctx *sctx, u64 end)
                 ret = begin_cmd(sctx, BTRFS_SEND_C_WRITE);
                 if (ret < 0)
                         break;
-                ret = get_cur_path(sctx, sctx->cur_ino, sctx->cur_inode_gen, p);
-                if (ret < 0)
-                        break;
                 TLV_PUT_PATH(sctx, BTRFS_SEND_A_PATH, p);
                 TLV_PUT_U64(sctx, BTRFS_SEND_A_FILE_OFFSET, offset);
                 TLV_PUT(sctx, BTRFS_SEND_A_DATA, sctx->read_buf, len);
@@ -4968,7 +4986,9 @@ static int finish_inode_if_needed(struct send_ctx *sctx, int at_end)
 
         if (S_ISREG(sctx->cur_inode_mode)) {
                 if (need_send_hole(sctx)) {
-                        if (sctx->cur_inode_last_extent == (u64)-1) {
+                        if (sctx->cur_inode_last_extent == (u64)-1 ||
+                            sctx->cur_inode_last_extent <
+                            sctx->cur_inode_size) {
                                 ret = get_last_extent(sctx, (u64)-1);
                                 if (ret)
                                         goto out;
@@ -5367,57 +5387,21 @@ out:
 static int full_send_tree(struct send_ctx *sctx)
 {
         int ret;
-        struct btrfs_trans_handle *trans = NULL;
         struct btrfs_root *send_root = sctx->send_root;
         struct btrfs_key key;
         struct btrfs_key found_key;
         struct btrfs_path *path;
         struct extent_buffer *eb;
         int slot;
-        u64 start_ctransid;
-        u64 ctransid;
 
         path = alloc_path_for_send();
         if (!path)
                 return -ENOMEM;
 
-        spin_lock(&send_root->root_item_lock);
-        start_ctransid = btrfs_root_ctransid(&send_root->root_item);
-        spin_unlock(&send_root->root_item_lock);
-
         key.objectid = BTRFS_FIRST_FREE_OBJECTID;
         key.type = BTRFS_INODE_ITEM_KEY;
         key.offset = 0;
 
-join_trans:
-        /*
-         * We need to make sure the transaction does not get committed
-         * while we do anything on commit roots. Join a transaction to prevent
-         * this.
-         */
-        trans = btrfs_join_transaction(send_root);
-        if (IS_ERR(trans)) {
-                ret = PTR_ERR(trans);
-                trans = NULL;
-                goto out;
-        }
-
-        /*
-         * Make sure the tree has not changed after re-joining. We detect this
-         * by comparing start_ctransid and ctransid. They should always match.
-         */
-        spin_lock(&send_root->root_item_lock);
-        ctransid = btrfs_root_ctransid(&send_root->root_item);
-        spin_unlock(&send_root->root_item_lock);
-
-        if (ctransid != start_ctransid) {
-                WARN(1, KERN_WARNING "BTRFS: the root that you're trying to "
-                                     "send was modified in between. This is "
-                                     "probably a bug.\n");
-                ret = -EIO;
-                goto out;
-        }
-
         ret = btrfs_search_slot_for_read(send_root, &key, path, 1, 0);
         if (ret < 0)
                 goto out;
@@ -5425,19 +5409,6 @@ join_trans:
                 goto out_finish;
 
         while (1) {
-                /*
-                 * When someone want to commit while we iterate, end the
-                 * joined transaction and rejoin.
-                 */
-                if (btrfs_should_end_transaction(trans, send_root)) {
-                        ret = btrfs_end_transaction(trans, send_root);
-                        trans = NULL;
-                        if (ret < 0)
-                                goto out;
-                        btrfs_release_path(path);
-                        goto join_trans;
-                }
-
                 eb = path->nodes[0];
                 slot = path->slots[0];
                 btrfs_item_key_to_cpu(eb, &found_key, slot);
@@ -5465,12 +5436,6 @@ out_finish:
 
 out:
         btrfs_free_path(path);
-        if (trans) {
-                if (!ret)
-                        ret = btrfs_end_transaction(trans, send_root);
-                else
-                        btrfs_end_transaction(trans, send_root);
-        }
         return ret;
 }
 
@@ -5718,7 +5683,9 @@ long btrfs_ioctl_send(struct file *mnt_file, void __user *arg_)
                         NULL);
         sort_clone_roots = 1;
 
+        current->journal_info = (void *)BTRFS_SEND_TRANS_STUB;
         ret = send_subvol(sctx);
+        current->journal_info = NULL;
         if (ret < 0)
                 goto out;
 
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index 9dbf42395153..5011aadacab8 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -66,6 +66,8 @@
 static const struct super_operations btrfs_super_ops;
 static struct file_system_type btrfs_fs_type;
 
+static int btrfs_remount(struct super_block *sb, int *flags, char *data);
+
 static const char *btrfs_decode_error(int errno)
 {
         char *errstr = "unknown";
@@ -1185,6 +1187,26 @@ static struct dentry *mount_subvol(const char *subvol_name, int flags,
         mnt = vfs_kern_mount(&btrfs_fs_type, flags, device_name,
                              newargs);
         kfree(newargs);
+
+        if (PTR_RET(mnt) == -EBUSY) {
+                if (flags & MS_RDONLY) {
+                        mnt = vfs_kern_mount(&btrfs_fs_type, flags & ~MS_RDONLY, device_name,
+                                             newargs);
+                } else {
+                        int r;
+                        mnt = vfs_kern_mount(&btrfs_fs_type, flags | MS_RDONLY, device_name,
+                                             newargs);
+                        if (IS_ERR(mnt))
+                                return ERR_CAST(mnt);
+
+                        r = btrfs_remount(mnt->mnt_sb, &flags, NULL);
+                        if (r < 0) {
+                                /* FIXME: release vfsmount mnt ??*/
+                                return ERR_PTR(r);
+                        }
+                }
+        }
+
         if (IS_ERR(mnt))
                 return ERR_CAST(mnt);
 
diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c
index a04707f740d6..7579f6d0b854 100644
--- a/fs/btrfs/transaction.c
+++ b/fs/btrfs/transaction.c
@@ -75,10 +75,21 @@ void btrfs_put_transaction(struct btrfs_transaction *transaction)
         }
 }
 
-static noinline void switch_commit_root(struct btrfs_root *root)
+static noinline void switch_commit_roots(struct btrfs_transaction *trans,
+                                         struct btrfs_fs_info *fs_info)
 {
-        free_extent_buffer(root->commit_root);
-        root->commit_root = btrfs_root_node(root);
+        struct btrfs_root *root, *tmp;
+
+        down_write(&fs_info->commit_root_sem);
+        list_for_each_entry_safe(root, tmp, &trans->switch_commits,
+                                 dirty_list) {
+                list_del_init(&root->dirty_list);
+                free_extent_buffer(root->commit_root);
+                root->commit_root = btrfs_root_node(root);
+                if (is_fstree(root->objectid))
+                        btrfs_unpin_free_ino(root);
+        }
+        up_write(&fs_info->commit_root_sem);
 }
 
 static inline void extwriter_counter_inc(struct btrfs_transaction *trans,
@@ -208,6 +219,7 @@ loop:
         INIT_LIST_HEAD(&cur_trans->pending_snapshots);
         INIT_LIST_HEAD(&cur_trans->ordered_operations);
         INIT_LIST_HEAD(&cur_trans->pending_chunks);
+        INIT_LIST_HEAD(&cur_trans->switch_commits);
         list_add_tail(&cur_trans->list, &fs_info->trans_list);
         extent_io_tree_init(&cur_trans->dirty_pages,
                              fs_info->btree_inode->i_mapping);
@@ -375,7 +387,8 @@ start_transaction(struct btrfs_root *root, u64 num_items, unsigned int type,
         if (test_bit(BTRFS_FS_STATE_ERROR, &root->fs_info->fs_state))
                 return ERR_PTR(-EROFS);
 
-        if (current->journal_info) {
+        if (current->journal_info &&
+            current->journal_info != (void *)BTRFS_SEND_TRANS_STUB) {
                 WARN_ON(type & TRANS_EXTWRITERS);
                 h = current->journal_info;
                 h->use_count++;
@@ -919,9 +932,6 @@ static int update_cowonly_root(struct btrfs_trans_handle *trans,
                         return ret;
         }
 
-        if (root != root->fs_info->extent_root)
-                switch_commit_root(root);
-
         return 0;
 }
 
@@ -977,15 +987,16 @@ static noinline int commit_cowonly_roots(struct btrfs_trans_handle *trans,
                 list_del_init(next);
                 root = list_entry(next, struct btrfs_root, dirty_list);
 
+                if (root != fs_info->extent_root)
+                        list_add_tail(&root->dirty_list,
+                                      &trans->transaction->switch_commits);
                 ret = update_cowonly_root(trans, root);
                 if (ret)
                         return ret;
         }
 
-        down_write(&fs_info->extent_commit_sem);
-        switch_commit_root(fs_info->extent_root);
-        up_write(&fs_info->extent_commit_sem);
-
+        list_add_tail(&fs_info->extent_root->dirty_list,
+                      &trans->transaction->switch_commits);
         btrfs_after_dev_replace_commit(fs_info);
 
         return 0;
@@ -1042,11 +1053,8 @@ static noinline int commit_fs_roots(struct btrfs_trans_handle *trans,
                         smp_wmb();
 
                         if (root->commit_root != root->node) {
-                                mutex_lock(&root->fs_commit_mutex);
-                                switch_commit_root(root);
-                                btrfs_unpin_free_ino(root);
-                                mutex_unlock(&root->fs_commit_mutex);
-
+                                list_add_tail(&root->dirty_list,
+                                        &trans->transaction->switch_commits);
                                 btrfs_set_root_node(&root->root_item,
                                                     root->node);
                         }
@@ -1857,11 +1865,15 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans,
 
         btrfs_set_root_node(&root->fs_info->tree_root->root_item,
                             root->fs_info->tree_root->node);
-        switch_commit_root(root->fs_info->tree_root);
+        list_add_tail(&root->fs_info->tree_root->dirty_list,
+                      &cur_trans->switch_commits);
 
         btrfs_set_root_node(&root->fs_info->chunk_root->root_item,
                             root->fs_info->chunk_root->node);
-        switch_commit_root(root->fs_info->chunk_root);
+        list_add_tail(&root->fs_info->chunk_root->dirty_list,
+                      &cur_trans->switch_commits);
+
+        switch_commit_roots(cur_trans, root->fs_info);
 
         assert_qgroups_uptodate(trans);
         update_super_roots(root);
diff --git a/fs/btrfs/transaction.h b/fs/btrfs/transaction.h
index 6ac037e9f9f0..b57b924e8e03 100644
--- a/fs/btrfs/transaction.h
+++ b/fs/btrfs/transaction.h
@@ -57,6 +57,7 @@ struct btrfs_transaction {
         struct list_head pending_snapshots;
         struct list_head ordered_operations;
         struct list_head pending_chunks;
+        struct list_head switch_commits;
         struct btrfs_delayed_ref_root delayed_refs;
         int aborted;
 };
@@ -78,6 +79,8 @@ struct btrfs_transaction {
 #define TRANS_EXTWRITERS        (__TRANS_USERSPACE | __TRANS_START |    \
                                  __TRANS_ATTACH)
 
+#define BTRFS_SEND_TRANS_STUB   1
+
 struct btrfs_trans_handle {
         u64 transid;
         u64 bytes_reserved;
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index d241130a32fd..49d7fab73360 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -448,6 +448,14 @@ static void pending_bios_fn(struct btrfs_work *work)
         run_scheduled_bios(device);
 }
 
+/*
+ * Add new device to list of registered devices
+ *
+ * Returns:
+ * 1   - first time device is seen
+ * 0   - device already known
+ * < 0 - error
+ */
 static noinline int device_list_add(const char *path,
                            struct btrfs_super_block *disk_super,
                            u64 devid, struct btrfs_fs_devices **fs_devices_ret)
@@ -455,6 +463,7 @@ static noinline int device_list_add(const char *path,
         struct btrfs_device *device;
         struct btrfs_fs_devices *fs_devices;
         struct rcu_string *name;
+        int ret = 0;
         u64 found_transid = btrfs_super_generation(disk_super);
 
         fs_devices = find_fsid(disk_super->fsid);
@@ -495,6 +504,7 @@ static noinline int device_list_add(const char *path,
                 fs_devices->num_devices++;
                 mutex_unlock(&fs_devices->device_list_mutex);
 
+                ret = 1;
                 device->fs_devices = fs_devices;
         } else if (!device->name || strcmp(device->name->str, path)) {
                 name = rcu_string_strdup(path, GFP_NOFS);
@@ -513,7 +523,8 @@ static noinline int device_list_add(const char *path,
                 fs_devices->latest_trans = found_transid;
         }
         *fs_devices_ret = fs_devices;
-        return 0;
+
+        return ret;
 }
 
 static struct btrfs_fs_devices *clone_fs_devices(struct btrfs_fs_devices *orig)
@@ -910,17 +921,19 @@ int btrfs_scan_one_device(const char *path, fmode_t flags, void *holder,
         transid = btrfs_super_generation(disk_super);
         total_devices = btrfs_super_num_devices(disk_super);
 
-        if (disk_super->label[0]) {
-                if (disk_super->label[BTRFS_LABEL_SIZE - 1])
-                        disk_super->label[BTRFS_LABEL_SIZE - 1] = '\0';
-                printk(KERN_INFO "BTRFS: device label %s ", disk_super->label);
-        } else {
-                printk(KERN_INFO "BTRFS: device fsid %pU ", disk_super->fsid);
-        }
-
-        printk(KERN_CONT "devid %llu transid %llu %s\n", devid, transid, path);
-
         ret = device_list_add(path, disk_super, devid, fs_devices_ret);
+        if (ret > 0) {
+                if (disk_super->label[0]) {
+                        if (disk_super->label[BTRFS_LABEL_SIZE - 1])
+                                disk_super->label[BTRFS_LABEL_SIZE - 1] = '\0';
+                        printk(KERN_INFO "BTRFS: device label %s ", disk_super->label);
+                } else {
+                        printk(KERN_INFO "BTRFS: device fsid %pU ", disk_super->fsid);
+                }
+
+                printk(KERN_CONT "devid %llu transid %llu %s\n", devid, transid, path);
+                ret = 0;
+        }
         if (!ret && fs_devices_ret)
                 (*fs_devices_ret)->total_devices = total_devices;
 
diff --git a/fs/buffer.c b/fs/buffer.c
index 8c53a2b15ecb..9ddb9fc7d923 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -2114,8 +2114,8 @@ EXPORT_SYMBOL(generic_write_end);
  * Returns true if all buffers which correspond to a file portion
  * we want to read are uptodate.
  */
-int block_is_partially_uptodate(struct page *page, read_descriptor_t *desc,
-                                        unsigned long from)
+int block_is_partially_uptodate(struct page *page, unsigned long from,
+                                        unsigned long count)
 {
         unsigned block_start, block_end, blocksize;
         unsigned to;
@@ -2127,7 +2127,7 @@ int block_is_partially_uptodate(struct page *page, read_descriptor_t *desc,
 
         head = page_buffers(page);
         blocksize = head->b_size;
-        to = min_t(unsigned, PAGE_CACHE_SIZE - from, desc->count);
+        to = min_t(unsigned, PAGE_CACHE_SIZE - from, count);
         to = from + to;
         if (from < blocksize && to > PAGE_CACHE_SIZE - blocksize)
                 return 0;
diff --git a/fs/cachefiles/bind.c b/fs/cachefiles/bind.c
index 622f4696e484..5b99bafc31d1 100644
--- a/fs/cachefiles/bind.c
+++ b/fs/cachefiles/bind.c
@@ -124,7 +124,6 @@ static int cachefiles_daemon_add_cache(struct cachefiles_cache *cache)
         /* check parameters */
         ret = -EOPNOTSUPP;
         if (!root->d_inode ||
-            !root->d_inode->i_op ||
             !root->d_inode->i_op->lookup ||
             !root->d_inode->i_op->mkdir ||
             !root->d_inode->i_op->setxattr ||
diff --git a/fs/cachefiles/namei.c b/fs/cachefiles/namei.c
index 6494d9f673aa..c0a681705104 100644
--- a/fs/cachefiles/namei.c
+++ b/fs/cachefiles/namei.c
@@ -779,8 +779,7 @@ struct dentry *cachefiles_get_directory(struct cachefiles_cache *cache,
         }
 
         ret = -EPERM;
-        if (!subdir->d_inode->i_op ||
-            !subdir->d_inode->i_op->setxattr ||
+        if (!subdir->d_inode->i_op->setxattr ||
             !subdir->d_inode->i_op->getxattr ||
             !subdir->d_inode->i_op->lookup ||
             !subdir->d_inode->i_op->mkdir ||
diff --git a/fs/ceph/file.c b/fs/ceph/file.c
index 66075a4ad979..39da1c2efa50 100644
--- a/fs/ceph/file.c
+++ b/fs/ceph/file.c
@@ -601,7 +601,7 @@ ceph_sync_direct_write(struct kiocb *iocb, const struct iovec *iov,
                                             false);
                 if (IS_ERR(req)) {
                         ret = PTR_ERR(req);
-                        goto out;
+                        break;
                 }
 
                 num_pages = calc_pages_for(page_align, len);
@@ -719,7 +719,7 @@ static ssize_t ceph_sync_write(struct kiocb *iocb, const struct iovec *iov,
                                             false);
                 if (IS_ERR(req)) {
                         ret = PTR_ERR(req);
-                        goto out;
+                        break;
                 }
 
                 /*
@@ -972,6 +972,7 @@ retry_snap:
                 }
         } else {
                 loff_t old_size = inode->i_size;
+                struct iov_iter from;
                 /*
                  * No need to acquire the i_truncate_mutex. Because
                  * the MDS revokes Fwb caps before sending truncate
@@ -979,9 +980,10 @@ retry_snap:
                  * are pending vmtruncate. So write and vmtruncate
                  * can not run at the same time
                  */
-                written = generic_file_buffered_write(iocb, iov, nr_segs,
-                                                      pos, &iocb->ki_pos,
-                                                      count, 0);
+                iov_iter_init(&from, iov, nr_segs, count, 0);
+                written = generic_perform_write(file, &from, pos);
+                if (likely(written >= 0))
+                        iocb->ki_pos = pos + written;
                 if (inode->i_size > old_size)
                         ceph_fscache_update_objectsize(inode);
                 mutex_unlock(&inode->i_mutex);
diff --git a/fs/ceph/ioctl.c b/fs/ceph/ioctl.c
index efbe08289292..fdf941b44ff1 100644
--- a/fs/ceph/ioctl.c
+++ b/fs/ceph/ioctl.c
@@ -1,9 +1,8 @@
+#include <linux/ceph/ceph_debug.h>
 #include <linux/in.h>
 
 #include "super.h"
 #include "mds_client.h"
-#include <linux/ceph/ceph_debug.h>
-
 #include "ioctl.h"
 
 
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index 2c70cbe35d39..df9c9141c099 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -850,7 +850,6 @@ const struct inode_operations cifs_file_inode_ops = {
 /*      revalidate:cifs_revalidate, */
         .setattr = cifs_setattr,
         .getattr = cifs_getattr, /* do we need this anymore? */
-        .rename = cifs_rename,
         .permission = cifs_permission,
 #ifdef CONFIG_CIFS_XATTR
         .setxattr = cifs_setxattr,
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index 216d7e99f921..8add25538a3b 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -2579,19 +2579,32 @@ cifs_writev(struct kiocb *iocb, const struct iovec *iov,
         struct cifsInodeInfo *cinode = CIFS_I(inode);
         struct TCP_Server_Info *server = tlink_tcon(cfile->tlink)->ses->server;
         ssize_t rc = -EACCES;
-        loff_t lock_pos = pos;
+        loff_t lock_pos = iocb->ki_pos;
 
-        if (file->f_flags & O_APPEND)
-                lock_pos = i_size_read(inode);
         /*
          * We need to hold the sem to be sure nobody modifies lock list
          * with a brlock that prevents writing.
          */
         down_read(&cinode->lock_sem);
+        mutex_lock(&inode->i_mutex);
+        if (file->f_flags & O_APPEND)
+                lock_pos = i_size_read(inode);
         if (!cifs_find_lock_conflict(cfile, lock_pos, iov_length(iov, nr_segs),
                                      server->vals->exclusive_lock_type, NULL,
-                                     CIFS_WRITE_OP))
-                rc = generic_file_aio_write(iocb, iov, nr_segs, pos);
+                                     CIFS_WRITE_OP)) {
+                rc = __generic_file_aio_write(iocb, iov, nr_segs);
+                mutex_unlock(&inode->i_mutex);
+
+                if (rc > 0) {
+                        ssize_t err;
+
+                        err = generic_write_sync(file, iocb->ki_pos - rc, rc);
+                        if (rc < 0)
+                                rc = err;
+                }
+        } else {
+                mutex_unlock(&inode->i_mutex);
+        }
         up_read(&cinode->lock_sem);
         return rc;
 }
@@ -2727,56 +2740,27 @@ cifs_retry_async_readv(struct cifs_readdata *rdata)
 /**
  * cifs_readdata_to_iov - copy data from pages in response to an iovec
  * @rdata:      the readdata response with list of pages holding data
- * @iov:        vector in which we should copy the data
- * @nr_segs:    number of segments in vector
- * @offset:     offset into file of the first iovec
- * @copied:     used to return the amount of data copied to the iov
+ * @iter:       destination for our data
  *
  * This function copies data from a list of pages in a readdata response into
  * an array of iovecs. It will first calculate where the data should go
  * based on the info in the readdata and then copy the data into that spot.
  */
-static ssize_t
-cifs_readdata_to_iov(struct cifs_readdata *rdata, const struct iovec *iov,
-                        unsigned long nr_segs, loff_t offset, ssize_t *copied)
+static int
+cifs_readdata_to_iov(struct cifs_readdata *rdata, struct iov_iter *iter)
 {
-        int rc = 0;
-        struct iov_iter ii;
-        size_t pos = rdata->offset - offset;
-        ssize_t remaining = rdata->bytes;
-        unsigned char *pdata;
+        size_t remaining = rdata->bytes;
         unsigned int i;
 
-        /* set up iov_iter and advance to the correct offset */
-        iov_iter_init(&ii, iov, nr_segs, iov_length(iov, nr_segs), 0);
-        iov_iter_advance(&ii, pos);
-
-        *copied = 0;
         for (i = 0; i < rdata->nr_pages; i++) {
-                ssize_t copy;
                 struct page *page = rdata->pages[i];
-
-                /* copy a whole page or whatever's left */
-                copy = min_t(ssize_t, remaining, PAGE_SIZE);
-
-                /* ...but limit it to whatever space is left in the iov */
-                copy = min_t(ssize_t, copy, iov_iter_count(&ii));
-
-                /* go while there's data to be copied and no errors */
-                if (copy && !rc) {
-                        pdata = kmap(page);
-                        rc = memcpy_toiovecend(ii.iov, pdata, ii.iov_offset,
-                                                (int)copy);
-                        kunmap(page);
-                        if (!rc) {
-                                *copied += copy;
-                                remaining -= copy;
-                                iov_iter_advance(&ii, copy);
-                        }
-                }
+                size_t copy = min_t(size_t, remaining, PAGE_SIZE);
+                size_t written = copy_page_to_iter(page, 0, copy, iter);
+                remaining -= written;
+                if (written < copy && iov_iter_count(iter) > 0)
+                        break;
         }
-
-        return rc;
+        return remaining ? -EFAULT : 0;
 }
 
 static void
@@ -2837,20 +2821,21 @@ cifs_uncached_read_into_pages(struct TCP_Server_Info *server,
         return total_read > 0 ? total_read : result;
 }
 
-static ssize_t
-cifs_iovec_read(struct file *file, const struct iovec *iov,
-                 unsigned long nr_segs, loff_t *poffset)
+ssize_t cifs_user_readv(struct kiocb *iocb, const struct iovec *iov,
+                               unsigned long nr_segs, loff_t pos)
 {
+        struct file *file = iocb->ki_filp;
         ssize_t rc;
         size_t len, cur_len;
         ssize_t total_read = 0;
-        loff_t offset = *poffset;
+        loff_t offset = pos;
         unsigned int npages;
         struct cifs_sb_info *cifs_sb;
         struct cifs_tcon *tcon;
         struct cifsFileInfo *open_file;
         struct cifs_readdata *rdata, *tmp;
         struct list_head rdata_list;
+        struct iov_iter to;
         pid_t pid;
 
         if (!nr_segs)
@@ -2860,6 +2845,8 @@ cifs_iovec_read(struct file *file, const struct iovec *iov,
         if (!len)
                 return 0;
 
+        iov_iter_init(&to, iov, nr_segs, len, 0);
+
         INIT_LIST_HEAD(&rdata_list);
         cifs_sb = CIFS_SB(file->f_path.dentry->d_sb);
         open_file = file->private_data;
@@ -2917,55 +2904,44 @@ error:
         if (!list_empty(&rdata_list))
                 rc = 0;
 
+        len = iov_iter_count(&to);
         /* the loop below should proceed in the order of increasing offsets */
-restart_loop:
         list_for_each_entry_safe(rdata, tmp, &rdata_list, list) {
+        again:
                 if (!rc) {
-                        ssize_t copied;
-
                         /* FIXME: freezable sleep too? */
                         rc = wait_for_completion_killable(&rdata->done);
                         if (rc)
                                 rc = -EINTR;
-                        else if (rdata->result)
+                        else if (rdata->result) {
                                 rc = rdata->result;
-                        else {
-                                rc = cifs_readdata_to_iov(rdata, iov,
-                                                        nr_segs, *poffset,
-                                                        &copied);
-                                total_read += copied;
+                                /* resend call if it's a retryable error */
+                                if (rc == -EAGAIN) {
+                                        rc = cifs_retry_async_readv(rdata);
+                                        goto again;
+                                }
+                        } else {
+                                rc = cifs_readdata_to_iov(rdata, &to);
                         }
 
-                        /* resend call if it's a retryable error */
-                        if (rc == -EAGAIN) {
-                                rc = cifs_retry_async_readv(rdata);
-                                goto restart_loop;
-                        }
                 }
                 list_del_init(&rdata->list);
                 kref_put(&rdata->refcount, cifs_uncached_readdata_release);
         }
 
+        total_read = len - iov_iter_count(&to);
+
         cifs_stats_bytes_read(tcon, total_read);
-        *poffset += total_read;
 
         /* mask nodata case */
         if (rc == -ENODATA)
                 rc = 0;
 
-        return total_read ? total_read : rc;
-}
-
-ssize_t cifs_user_readv(struct kiocb *iocb, const struct iovec *iov,
-                               unsigned long nr_segs, loff_t pos)
-{
-        ssize_t read;
-
-        read = cifs_iovec_read(iocb->ki_filp, iov, nr_segs, &pos);
-        if (read > 0)
-                iocb->ki_pos = pos;
-
-        return read;
+        if (total_read) {
+                iocb->ki_pos = pos + total_read;
+                return total_read;
+        }
+        return rc;
 }
 
 ssize_t
diff --git a/fs/dlm/lowcomms.c b/fs/dlm/lowcomms.c
index 3190ca973dd6..1e5b45359509 100644
--- a/fs/dlm/lowcomms.c
+++ b/fs/dlm/lowcomms.c
@@ -424,7 +424,7 @@ int dlm_lowcomms_addr(int nodeid, struct sockaddr_storage *addr, int len)
 }
 
 /* Data available on socket or listen socket received a connect */
-static void lowcomms_data_ready(struct sock *sk, int count_unused)
+static void lowcomms_data_ready(struct sock *sk)
 {
         struct connection *con = sock2con(sk);
         if (con && !test_and_set_bit(CF_READ_PENDING, &con->flags))
diff --git a/fs/exec.c b/fs/exec.c
index 9e81c630dfa7..476f3ebf437e 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -813,7 +813,7 @@ EXPORT_SYMBOL(kernel_read);
 
 ssize_t read_code(struct file *file, unsigned long addr, loff_t pos, size_t len)
 {
-        ssize_t res = file->f_op->read(file, (void __user *)addr, len, &pos);
+        ssize_t res = vfs_read(file, (void __user *)addr, len, &pos);
         if (res > 0)
                 flush_icache_range(addr, addr + len);
         return res;
diff --git a/fs/ext4/file.c b/fs/ext4/file.c
index 4e508fc83dcf..ca7502d89fde 100644
--- a/fs/ext4/file.c
+++ b/fs/ext4/file.c
@@ -146,7 +146,7 @@ ext4_file_dio_write(struct kiocb *iocb, const struct iovec *iov,
                         overwrite = 1;
         }
 
-        ret = __generic_file_aio_write(iocb, iov, nr_segs, &iocb->ki_pos);
+        ret = __generic_file_aio_write(iocb, iov, nr_segs);
         mutex_unlock(&inode->i_mutex);
 
         if (ret > 0) {
diff --git a/fs/file.c b/fs/file.c
index b61293badfb1..8f294cfac697 100644
--- a/fs/file.c
+++ b/fs/file.c
@@ -25,7 +25,10 @@
 
 int sysctl_nr_open __read_mostly = 1024*1024;
 int sysctl_nr_open_min = BITS_PER_LONG;
-int sysctl_nr_open_max = 1024 * 1024; /* raised later */
+/* our max() is unusable in constant expressions ;-/ */
+#define __const_max(x, y) ((x) < (y) ? (x) : (y))
+int sysctl_nr_open_max = __const_max(INT_MAX, ~(size_t)0/sizeof(void *)) &
+                         -BITS_PER_LONG;
 
 static void *alloc_fdmem(size_t size)
 {
@@ -429,12 +432,6 @@ void exit_files(struct task_struct *tsk)
         }
 }
 
-void __init files_defer_init(void)
-{
-        sysctl_nr_open_max = min((size_t)INT_MAX, ~(size_t)0/sizeof(void *)) &
-                             -BITS_PER_LONG;
-}
-
 struct files_struct init_files = {
         .count          = ATOMIC_INIT(1),
         .fdt            = &init_files.fdtab,
diff --git a/fs/file_table.c b/fs/file_table.c
index 01071c4d752e..a374f5033e97 100644
--- a/fs/file_table.c
+++ b/fs/file_table.c
@@ -52,7 +52,6 @@ static void file_free_rcu(struct rcu_head *head)
 static inline void file_free(struct file *f)
 {
         percpu_counter_dec(&nr_files);
-        file_check_state(f);
         call_rcu(&f->f_u.fu_rcuhead, file_free_rcu);
 }
 
@@ -178,47 +177,12 @@ struct file *alloc_file(struct path *path, fmode_t mode,
         file->f_mapping = path->dentry->d_inode->i_mapping;
         file->f_mode = mode;
         file->f_op = fop;
-
-        /*
-         * These mounts don't really matter in practice
-         * for r/o bind mounts.  They aren't userspace-
-         * visible.  We do this for consistency, and so
-         * that we can do debugging checks at __fput()
-         */
-        if ((mode & FMODE_WRITE) && !special_file(path->dentry->d_inode->i_mode)) {
-                file_take_write(file);
-                WARN_ON(mnt_clone_write(path->mnt));
-        }
         if ((mode & (FMODE_READ | FMODE_WRITE)) == FMODE_READ)
                 i_readcount_inc(path->dentry->d_inode);
         return file;
 }
 EXPORT_SYMBOL(alloc_file);
 
-/**
- * drop_file_write_access - give up ability to write to a file
- * @file: the file to which we will stop writing
- *
- * This is a central place which will give up the ability
- * to write to @file, along with access to write through
- * its vfsmount.
- */
-static void drop_file_write_access(struct file *file)
-{
-        struct vfsmount *mnt = file->f_path.mnt;
-        struct dentry *dentry = file->f_path.dentry;
-        struct inode *inode = dentry->d_inode;
-
-        put_write_access(inode);
-
-        if (special_file(inode->i_mode))
-                return;
-        if (file_check_writeable(file) != 0)
-                return;
-        __mnt_drop_write(mnt);
-        file_release_write(file);
-}
-
 /* the real guts of fput() - releasing the last reference to file
  */
 static void __fput(struct file *file)
@@ -253,8 +217,10 @@ static void __fput(struct file *file)
         put_pid(file->f_owner.pid);
         if ((file->f_mode & (FMODE_READ | FMODE_WRITE)) == FMODE_READ)
                 i_readcount_dec(inode);
-        if (file->f_mode & FMODE_WRITE)
-                drop_file_write_access(file);
+        if (file->f_mode & FMODE_WRITER) {
+                put_write_access(inode);
+                __mnt_drop_write(mnt);
+        }
         file->f_path.dentry = NULL;
         file->f_path.mnt = NULL;
         file->f_inode = NULL;
@@ -359,6 +325,5 @@ void __init files_init(unsigned long mempages)
 
         n = (mempages * (PAGE_SIZE / 1024)) / 10;
         files_stat.max_files = max_t(unsigned long, n, NR_FILE);
-        files_defer_init();
         percpu_counter_init(&nr_files, 0);
 } 
diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index 0a648bb455ae..aac71ce373e4 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -667,15 +667,15 @@ static void fuse_copy_finish(struct fuse_copy_state *cs)
                 struct pipe_buffer *buf = cs->currbuf;
 
                 if (!cs->write) {
-                        buf->ops->unmap(cs->pipe, buf, cs->mapaddr);
+                        kunmap_atomic(cs->mapaddr);
                 } else {
-                        kunmap(buf->page);
+                        kunmap_atomic(cs->mapaddr);
                         buf->len = PAGE_SIZE - cs->len;
                 }
                 cs->currbuf = NULL;
                 cs->mapaddr = NULL;
         } else if (cs->mapaddr) {
-                kunmap(cs->pg);
+                kunmap_atomic(cs->mapaddr);
                 if (cs->write) {
                         flush_dcache_page(cs->pg);
                         set_page_dirty_lock(cs->pg);
@@ -706,7 +706,7 @@ static int fuse_copy_fill(struct fuse_copy_state *cs)
 
                         BUG_ON(!cs->nr_segs);
                         cs->currbuf = buf;
-                        cs->mapaddr = buf->ops->map(cs->pipe, buf, 0);
+                        cs->mapaddr = kmap_atomic(buf->page);
                         cs->len = buf->len;
                         cs->buf = cs->mapaddr + buf->offset;
                         cs->pipebufs++;
@@ -726,7 +726,7 @@ static int fuse_copy_fill(struct fuse_copy_state *cs)
                         buf->len = 0;
 
                         cs->currbuf = buf;
-                        cs->mapaddr = kmap(page);
+                        cs->mapaddr = kmap_atomic(page);
                         cs->buf = cs->mapaddr;
                         cs->len = PAGE_SIZE;
                         cs->pipebufs++;
@@ -745,7 +745,7 @@ static int fuse_copy_fill(struct fuse_copy_state *cs)
                         return err;
                 BUG_ON(err != 1);
                 offset = cs->addr % PAGE_SIZE;
-                cs->mapaddr = kmap(cs->pg);
+                cs->mapaddr = kmap_atomic(cs->pg);
                 cs->buf = cs->mapaddr + offset;
                 cs->len = min(PAGE_SIZE - offset, cs->seglen);
                 cs->seglen -= cs->len;
@@ -874,7 +874,7 @@ static int fuse_try_move_page(struct fuse_copy_state *cs, struct page **pagep)
 out_fallback_unlock:
         unlock_page(newpage);
 out_fallback:
-        cs->mapaddr = buf->ops->map(cs->pipe, buf, 1);
+        cs->mapaddr = kmap_atomic(buf->page);
         cs->buf = cs->mapaddr + buf->offset;
 
         err = lock_request(cs->fc, cs->req);
diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index 48992cac714b..13f8bdec5110 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -1086,9 +1086,7 @@ static ssize_t fuse_fill_write_pages(struct fuse_req *req,
                 if (mapping_writably_mapped(mapping))
                         flush_dcache_page(page);
 
-                pagefault_disable();
                 tmp = iov_iter_copy_from_user_atomic(page, ii, offset, bytes);
-                pagefault_enable();
                 flush_dcache_page(page);
 
                 mark_page_accessed(page);
@@ -1237,8 +1235,7 @@ static ssize_t fuse_file_aio_write(struct kiocb *iocb, const struct iovec *iov,
                 goto out;
 
         if (file->f_flags & O_DIRECT) {
-                written = generic_file_direct_write(iocb, iov, &nr_segs,
-                                                    pos, &iocb->ki_pos,
+                written = generic_file_direct_write(iocb, iov, &nr_segs, pos, 
                                                     count, ocount);
                 if (written < 0 || written == count)
                         goto out;
diff --git a/fs/mount.h b/fs/mount.h
index b29e42f05f34..d55297f2fa05 100644
--- a/fs/mount.h
+++ b/fs/mount.h
@@ -10,7 +10,7 @@ struct mnt_namespace {
         struct user_namespace   *user_ns;
         u64                     seq;    /* Sequence number to prevent loops */
         wait_queue_head_t poll;
-        int event;
+        u64 event;
 };
 
 struct mnt_pcp {
@@ -104,6 +104,9 @@ struct proc_mounts {
         struct mnt_namespace *ns;
         struct path root;
         int (*show)(struct seq_file *, struct vfsmount *);
+        void *cached_mount;
+        u64 cached_event;
+        loff_t cached_index;
 };
 
 #define proc_mounts(p) (container_of((p), struct proc_mounts, m))
diff --git a/fs/namei.c b/fs/namei.c
index 88339f59efb5..c6157c894fce 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -358,6 +358,7 @@ int generic_permission(struct inode *inode, int mask)
 
         return -EACCES;
 }
+EXPORT_SYMBOL(generic_permission);
 
 /*
  * We _really_ want to just do "generic_permission()" without
@@ -455,6 +456,7 @@ int inode_permission(struct inode *inode, int mask)
                 return retval;
         return __inode_permission(inode, mask);
 }
+EXPORT_SYMBOL(inode_permission);
 
 /**
  * path_get - get a reference to a path
@@ -924,6 +926,7 @@ int follow_up(struct path *path)
         path->mnt = &parent->mnt;
         return 1;
 }
+EXPORT_SYMBOL(follow_up);
 
 /*
  * Perform an automount
@@ -1085,6 +1088,7 @@ int follow_down_one(struct path *path)
         }
         return 0;
 }
+EXPORT_SYMBOL(follow_down_one);
 
 static inline bool managed_dentry_might_block(struct dentry *dentry)
 {
@@ -1223,6 +1227,7 @@ int follow_down(struct path *path)
         }
         return 0;
 }
+EXPORT_SYMBOL(follow_down);
 
 /*
  * Skip to top of mountpoint pile in refwalk mode for follow_dotdot()
@@ -2025,6 +2030,7 @@ int kern_path(const char *name, unsigned int flags, struct path *path)
                 *path = nd.path;
         return res;
 }
+EXPORT_SYMBOL(kern_path);
 
 /**
  * vfs_path_lookup - lookup a file path relative to a dentry-vfsmount pair
@@ -2049,6 +2055,7 @@ int vfs_path_lookup(struct dentry *dentry, struct vfsmount *mnt,
                 *path = nd.path;
         return err;
 }
+EXPORT_SYMBOL(vfs_path_lookup);
 
 /*
  * Restricted form of lookup. Doesn't follow links, single-component only,
@@ -2111,6 +2118,7 @@ struct dentry *lookup_one_len(const char *name, struct dentry *base, int len)
 
         return __lookup_hash(&this, base, 0);
 }
+EXPORT_SYMBOL(lookup_one_len);
 
 int user_path_at_empty(int dfd, const char __user *name, unsigned flags,
                  struct path *path, int *empty)
@@ -2135,6 +2143,7 @@ int user_path_at(int dfd, const char __user *name, unsigned flags,
 {
         return user_path_at_empty(dfd, name, flags, path, NULL);
 }
+EXPORT_SYMBOL(user_path_at);
 
 /*
  * NB: most callers don't do anything directly with the reference to the
@@ -2477,6 +2486,7 @@ struct dentry *lock_rename(struct dentry *p1, struct dentry *p2)
         mutex_lock_nested(&p2->d_inode->i_mutex, I_MUTEX_CHILD);
         return NULL;
 }
+EXPORT_SYMBOL(lock_rename);
 
 void unlock_rename(struct dentry *p1, struct dentry *p2)
 {
@@ -2486,6 +2496,7 @@ void unlock_rename(struct dentry *p1, struct dentry *p2)
                 mutex_unlock(&p1->d_inode->i_sb->s_vfs_rename_mutex);
         }
 }
+EXPORT_SYMBOL(unlock_rename);
 
 int vfs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
                 bool want_excl)
@@ -2506,6 +2517,7 @@ int vfs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
                 fsnotify_create(dir, dentry);
         return error;
 }
+EXPORT_SYMBOL(vfs_create);
 
 static int may_open(struct path *path, int acc_mode, int flag)
 {
@@ -3375,6 +3387,7 @@ int vfs_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev)
                 fsnotify_create(dir, dentry);
         return error;
 }
+EXPORT_SYMBOL(vfs_mknod);
 
 static int may_mknod(umode_t mode)
 {
@@ -3464,6 +3477,7 @@ int vfs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
                 fsnotify_mkdir(dir, dentry);
         return error;
 }
+EXPORT_SYMBOL(vfs_mkdir);
 
 SYSCALL_DEFINE3(mkdirat, int, dfd, const char __user *, pathname, umode_t, mode)
 {
@@ -3518,6 +3532,7 @@ void dentry_unhash(struct dentry *dentry)
                 __d_drop(dentry);
         spin_unlock(&dentry->d_lock);
 }
+EXPORT_SYMBOL(dentry_unhash);
 
 int vfs_rmdir(struct inode *dir, struct dentry *dentry)
 {
@@ -3555,6 +3570,7 @@ out:
                 d_delete(dentry);
         return error;
 }
+EXPORT_SYMBOL(vfs_rmdir);
 
 static long do_rmdir(int dfd, const char __user *pathname)
 {
@@ -3672,6 +3688,7 @@ out:
 
         return error;
 }
+EXPORT_SYMBOL(vfs_unlink);
 
 /*
  * Make sure that the actual truncation of the file will occur outside its
@@ -3785,6 +3802,7 @@ int vfs_symlink(struct inode *dir, struct dentry *dentry, const char *oldname)
                 fsnotify_create(dir, dentry);
         return error;
 }
+EXPORT_SYMBOL(vfs_symlink);
 
 SYSCALL_DEFINE3(symlinkat, const char __user *, oldname,
                 int, newdfd, const char __user *, newname)
@@ -3893,6 +3911,7 @@ int vfs_link(struct dentry *old_dentry, struct inode *dir, struct dentry *new_de
                 fsnotify_link(dir, inode, new_dentry);
         return error;
 }
+EXPORT_SYMBOL(vfs_link);
 
 /*
  * Hardlinks are often used in delicate situations.  We avoid
@@ -4152,6 +4171,7 @@ out:
 
         return error;
 }
+EXPORT_SYMBOL(vfs_rename);
 
 SYSCALL_DEFINE5(renameat2, int, olddfd, const char __user *, oldname,
                 int, newdfd, const char __user *, newname, unsigned int, flags)
@@ -4304,11 +4324,9 @@ SYSCALL_DEFINE2(rename, const char __user *, oldname, const char __user *, newna
         return sys_renameat2(AT_FDCWD, oldname, AT_FDCWD, newname, 0);
 }
 
-int vfs_readlink(struct dentry *dentry, char __user *buffer, int buflen, const char *link)
+int readlink_copy(char __user *buffer, int buflen, const char *link)
 {
-        int len;
-
-        len = PTR_ERR(link);
+        int len = PTR_ERR(link);
         if (IS_ERR(link))
                 goto out;
 
@@ -4320,6 +4338,7 @@ int vfs_readlink(struct dentry *dentry, char __user *buffer, int buflen, const c
 out:
         return len;
 }
+EXPORT_SYMBOL(readlink_copy);
 
 /*
  * A helper for ->readlink().  This should be used *ONLY* for symlinks that
@@ -4337,11 +4356,12 @@ int generic_readlink(struct dentry *dentry, char __user *buffer, int buflen)
         if (IS_ERR(cookie))
                 return PTR_ERR(cookie);
 
-        res = vfs_readlink(dentry, buffer, buflen, nd_get_link(&nd));
+        res = readlink_copy(buffer, buflen, nd_get_link(&nd));
         if (dentry->d_inode->i_op->put_link)
                 dentry->d_inode->i_op->put_link(dentry, &nd, cookie);
         return res;
 }
+EXPORT_SYMBOL(generic_readlink);
 
 /* get the link contents into pagecache */
 static char *page_getlink(struct dentry * dentry, struct page **ppage)
@@ -4361,14 +4381,14 @@ static char *page_getlink(struct dentry * dentry, struct page **ppage)
 int page_readlink(struct dentry *dentry, char __user *buffer, int buflen)
 {
         struct page *page = NULL;
-        char *s = page_getlink(dentry, &page);
-        int res = vfs_readlink(dentry,buffer,buflen,s);
+        int res = readlink_copy(buffer, buflen, page_getlink(dentry, &page));
         if (page) {
                 kunmap(page);
                 page_cache_release(page);
         }
         return res;
 }
+EXPORT_SYMBOL(page_readlink);
 
 void *page_follow_link_light(struct dentry *dentry, struct nameidata *nd)
 {
@@ -4376,6 +4396,7 @@ void *page_follow_link_light(struct dentry *dentry, struct nameidata *nd)
         nd_set_link(nd, page_getlink(dentry, &page));
         return page;
 }
+EXPORT_SYMBOL(page_follow_link_light);
 
 void page_put_link(struct dentry *dentry, struct nameidata *nd, void *cookie)
 {
@@ -4386,6 +4407,7 @@ void page_put_link(struct dentry *dentry, struct nameidata *nd, void *cookie)
                 page_cache_release(page);
         }
 }
+EXPORT_SYMBOL(page_put_link);
 
 /*
  * The nofs argument instructs pagecache_write_begin to pass AOP_FLAG_NOFS
@@ -4423,45 +4445,18 @@ retry:
 fail:
         return err;
 }
+EXPORT_SYMBOL(__page_symlink);
 
 int page_symlink(struct inode *inode, const char *symname, int len)
 {
         return __page_symlink(inode, symname, len,
                         !(mapping_gfp_mask(inode->i_mapping) & __GFP_FS));
 }
+EXPORT_SYMBOL(page_symlink);
 
 const struct inode_operations page_symlink_inode_operations = {
         .readlink       = generic_readlink,
         .follow_link    = page_follow_link_light,
         .put_link       = page_put_link,
 };
-
-EXPORT_SYMBOL(user_path_at);
-EXPORT_SYMBOL(follow_down_one);
-EXPORT_SYMBOL(follow_down);
-EXPORT_SYMBOL(follow_up);
-EXPORT_SYMBOL(get_write_access); /* nfsd */
-EXPORT_SYMBOL(lock_rename);
-EXPORT_SYMBOL(lookup_one_len);
-EXPORT_SYMBOL(page_follow_link_light);
-EXPORT_SYMBOL(page_put_link);
-EXPORT_SYMBOL(page_readlink);
-EXPORT_SYMBOL(__page_symlink);
-EXPORT_SYMBOL(page_symlink);
 EXPORT_SYMBOL(page_symlink_inode_operations);
-EXPORT_SYMBOL(kern_path);
-EXPORT_SYMBOL(vfs_path_lookup);
-EXPORT_SYMBOL(inode_permission);
-EXPORT_SYMBOL(unlock_rename);
-EXPORT_SYMBOL(vfs_create);
-EXPORT_SYMBOL(vfs_link);
-EXPORT_SYMBOL(vfs_mkdir);
-EXPORT_SYMBOL(vfs_mknod);
-EXPORT_SYMBOL(generic_permission);
-EXPORT_SYMBOL(vfs_readlink);
-EXPORT_SYMBOL(vfs_rename);
-EXPORT_SYMBOL(vfs_rmdir);
-EXPORT_SYMBOL(vfs_symlink);
-EXPORT_SYMBOL(vfs_unlink);
-EXPORT_SYMBOL(dentry_unhash);
-EXPORT_SYMBOL(generic_readlink);
diff --git a/fs/namespace.c b/fs/namespace.c
index 2ffc5a2905d4..182bc41cd887 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -52,7 +52,7 @@ static int __init set_mphash_entries(char *str)
 }
 __setup("mphash_entries=", set_mphash_entries);
 
-static int event;
+static u64 event;
 static DEFINE_IDA(mnt_id_ida);
 static DEFINE_IDA(mnt_group_ida);
 static DEFINE_SPINLOCK(mnt_id_lock);
@@ -414,9 +414,7 @@ EXPORT_SYMBOL_GPL(mnt_clone_write);
  */
 int __mnt_want_write_file(struct file *file)
 {
-        struct inode *inode = file_inode(file);
-
-        if (!(file->f_mode & FMODE_WRITE) || special_file(inode->i_mode))
+        if (!(file->f_mode & FMODE_WRITER))
                 return __mnt_want_write(file->f_path.mnt);
         else
                 return mnt_clone_write(file->f_path.mnt);
@@ -570,13 +568,17 @@ int sb_prepare_remount_readonly(struct super_block *sb)
 static void free_vfsmnt(struct mount *mnt)
 {
         kfree(mnt->mnt_devname);
-        mnt_free_id(mnt);
 #ifdef CONFIG_SMP
         free_percpu(mnt->mnt_pcp);
 #endif
         kmem_cache_free(mnt_cache, mnt);
 }
 
+static void delayed_free_vfsmnt(struct rcu_head *head)
+{
+        free_vfsmnt(container_of(head, struct mount, mnt_rcu));
+}
+
 /* call under rcu_read_lock */
 bool legitimize_mnt(struct vfsmount *bastard, unsigned seq)
 {
@@ -848,6 +850,7 @@ vfs_kern_mount(struct file_system_type *type, int flags, const char *name, void
 
         root = mount_fs(type, flags, name, data);
         if (IS_ERR(root)) {
+                mnt_free_id(mnt);
                 free_vfsmnt(mnt);
                 return ERR_CAST(root);
         }
@@ -885,7 +888,7 @@ static struct mount *clone_mnt(struct mount *old, struct dentry *root,
                         goto out_free;
         }
 
-        mnt->mnt.mnt_flags = old->mnt.mnt_flags & ~MNT_WRITE_HOLD;
+        mnt->mnt.mnt_flags = old->mnt.mnt_flags & ~(MNT_WRITE_HOLD|MNT_MARKED);
         /* Don't allow unprivileged users to change mount flags */
         if ((flag & CL_UNPRIVILEGED) && (mnt->mnt.mnt_flags & MNT_READONLY))
                 mnt->mnt.mnt_flags |= MNT_LOCK_READONLY;
@@ -928,20 +931,11 @@ static struct mount *clone_mnt(struct mount *old, struct dentry *root,
         return mnt;
 
  out_free:
+        mnt_free_id(mnt);
         free_vfsmnt(mnt);
         return ERR_PTR(err);
 }
 
-static void delayed_free(struct rcu_head *head)
-{
-        struct mount *mnt = container_of(head, struct mount, mnt_rcu);
-        kfree(mnt->mnt_devname);
-#ifdef CONFIG_SMP
-        free_percpu(mnt->mnt_pcp);
-#endif
-        kmem_cache_free(mnt_cache, mnt);
-}
-
 static void mntput_no_expire(struct mount *mnt)
 {
 put_again:
@@ -991,7 +985,7 @@ put_again:
         dput(mnt->mnt.mnt_root);
         deactivate_super(mnt->mnt.mnt_sb);
         mnt_free_id(mnt);
-        call_rcu(&mnt->mnt_rcu, delayed_free);
+        call_rcu(&mnt->mnt_rcu, delayed_free_vfsmnt);
 }
 
 void mntput(struct vfsmount *mnt)
@@ -1100,14 +1094,29 @@ static void *m_start(struct seq_file *m, loff_t *pos)
         struct proc_mounts *p = proc_mounts(m);
 
         down_read(&namespace_sem);
-        return seq_list_start(&p->ns->list, *pos);
+        if (p->cached_event == p->ns->event) {
+                void *v = p->cached_mount;
+                if (*pos == p->cached_index)
+                        return v;
+                if (*pos == p->cached_index + 1) {
+                        v = seq_list_next(v, &p->ns->list, &p->cached_index);
+                        return p->cached_mount = v;
+                }
+        }
+
+        p->cached_event = p->ns->event;
+        p->cached_mount = seq_list_start(&p->ns->list, *pos);
+        p->cached_index = *pos;
+        return p->cached_mount;
 }
 
 static void *m_next(struct seq_file *m, void *v, loff_t *pos)
 {
         struct proc_mounts *p = proc_mounts(m);
 
-        return seq_list_next(v, &p->ns->list, pos);
+        p->cached_mount = seq_list_next(v, &p->ns->list, pos);
+        p->cached_index = *pos;
+        return p->cached_mount;
 }
 
 static void m_stop(struct seq_file *m, void *v)
@@ -1661,9 +1670,9 @@ static int attach_recursive_mnt(struct mount *source_mnt,
                 if (err)
                         goto out;
                 err = propagate_mnt(dest_mnt, dest_mp, source_mnt, &tree_list);
+                lock_mount_hash();
                 if (err)
                         goto out_cleanup_ids;
-                lock_mount_hash();
                 for (p = source_mnt; p; p = next_mnt(p, source_mnt))
                         set_mnt_shared(p);
         } else {
@@ -1690,6 +1699,11 @@ static int attach_recursive_mnt(struct mount *source_mnt,
         return 0;
 
  out_cleanup_ids:
+        while (!hlist_empty(&tree_list)) {
+                child = hlist_entry(tree_list.first, struct mount, mnt_hash);
+                umount_tree(child, 0);
+        }
+        unlock_mount_hash();
         cleanup_group_ids(source_mnt, NULL);
  out:
         return err;
@@ -2044,7 +2058,7 @@ static int do_add_mount(struct mount *newmnt, struct path *path, int mnt_flags)
         struct mount *parent;
         int err;
 
-        mnt_flags &= ~(MNT_SHARED | MNT_WRITE_HOLD | MNT_INTERNAL | MNT_DOOMED | MNT_SYNC_UMOUNT);
+        mnt_flags &= ~MNT_INTERNAL_FLAGS;
 
         mp = lock_mount(path);
         if (IS_ERR(mp))
diff --git a/fs/ncpfs/inode.c b/fs/ncpfs/inode.c
index 81b4f643ecef..e31e589369a4 100644
--- a/fs/ncpfs/inode.c
+++ b/fs/ncpfs/inode.c
@@ -470,9 +470,7 @@ static int ncp_fill_super(struct super_block *sb, void *raw_data, int silent)
 {
         struct ncp_mount_data_kernel data;
         struct ncp_server *server;
-        struct file *ncp_filp;
         struct inode *root_inode;
-        struct inode *sock_inode;
         struct socket *sock;
         int error;
         int default_bufsize;
@@ -541,18 +539,10 @@ static int ncp_fill_super(struct super_block *sb, void *raw_data, int silent)
         if (!uid_valid(data.mounted_uid) || !uid_valid(data.uid) ||
             !gid_valid(data.gid))
                 goto out;
-        error = -EBADF;
-        ncp_filp = fget(data.ncp_fd);
-        if (!ncp_filp)
-                goto out;
-        error = -ENOTSOCK;
-        sock_inode = file_inode(ncp_filp);
-        if (!S_ISSOCK(sock_inode->i_mode))
-                goto out_fput;
-        sock = SOCKET_I(sock_inode);
+        sock = sockfd_lookup(data.ncp_fd, &error);
         if (!sock)
-                goto out_fput;
-                
+                goto out;
+
         if (sock->type == SOCK_STREAM)
                 default_bufsize = 0xF000;
         else
@@ -574,27 +564,16 @@ static int ncp_fill_super(struct super_block *sb, void *raw_data, int silent)
         if (error)
                 goto out_fput;
 
-        server->ncp_filp = ncp_filp;
         server->ncp_sock = sock;
         
         if (data.info_fd != -1) {
-                struct socket *info_sock;
-
-                error = -EBADF;
-                server->info_filp = fget(data.info_fd);
-                if (!server->info_filp)
-                        goto out_bdi;
-                error = -ENOTSOCK;
-                sock_inode = file_inode(server->info_filp);
-                if (!S_ISSOCK(sock_inode->i_mode))
-                        goto out_fput2;
-                info_sock = SOCKET_I(sock_inode);
+                struct socket *info_sock = sockfd_lookup(data.info_fd, &error);
                 if (!info_sock)
-                        goto out_fput2;
+                        goto out_bdi;
+                server->info_sock = info_sock;
                 error = -EBADFD;
                 if (info_sock->type != SOCK_STREAM)
                         goto out_fput2;
-                server->info_sock = info_sock;
         }
 
 /*      server->lock = 0;       */
@@ -766,17 +745,12 @@ out_nls:
         mutex_destroy(&server->root_setup_lock);
         mutex_destroy(&server->mutex);
 out_fput2:
-        if (server->info_filp)
-                fput(server->info_filp);
+        if (server->info_sock)
+                sockfd_put(server->info_sock);
 out_bdi:
         bdi_destroy(&server->bdi);
 out_fput:
-        /* 23/12/1998 Marcin Dalecki <dalecki@cs.net.pl>:
-         * 
-         * The previously used put_filp(ncp_filp); was bogus, since
-         * it doesn't perform proper unlocking.
-         */
-        fput(ncp_filp);
+        sockfd_put(sock);
 out:
         put_pid(data.wdog_pid);
         sb->s_fs_info = NULL;
@@ -809,9 +783,9 @@ static void ncp_put_super(struct super_block *sb)
         mutex_destroy(&server->root_setup_lock);
         mutex_destroy(&server->mutex);
 
-        if (server->info_filp)
-                fput(server->info_filp);
-        fput(server->ncp_filp);
+        if (server->info_sock)
+                sockfd_put(server->info_sock);
+        sockfd_put(server->ncp_sock);
         kill_pid(server->m.wdog_pid, SIGTERM, 1);
         put_pid(server->m.wdog_pid);
 
diff --git a/fs/ncpfs/ncp_fs_sb.h b/fs/ncpfs/ncp_fs_sb.h
index b81e97adc5a9..55e26fd80886 100644
--- a/fs/ncpfs/ncp_fs_sb.h
+++ b/fs/ncpfs/ncp_fs_sb.h
@@ -45,9 +45,7 @@ struct ncp_server {
 
         __u8 name_space[NCP_NUMBER_OF_VOLUMES + 2];
 
-        struct file *ncp_filp;  /* File pointer to ncp socket */
         struct socket *ncp_sock;/* ncp socket */
-        struct file *info_filp;
         struct socket *info_sock;
 
         u8 sequence;
@@ -111,7 +109,7 @@ struct ncp_server {
 
         spinlock_t requests_lock;       /* Lock accesses to tx.requests, tx.creq and rcv.creq when STREAM mode */
 
-        void (*data_ready)(struct sock* sk, int len);
+        void (*data_ready)(struct sock* sk);
         void (*error_report)(struct sock* sk);
         void (*write_space)(struct sock* sk);   /* STREAM mode only */
         struct {
@@ -153,7 +151,7 @@ extern void ncp_tcp_tx_proc(struct work_struct *work);
 extern void ncpdgram_rcv_proc(struct work_struct *work);
 extern void ncpdgram_timeout_proc(struct work_struct *work);
 extern void ncpdgram_timeout_call(unsigned long server);
-extern void ncp_tcp_data_ready(struct sock* sk, int len);
+extern void ncp_tcp_data_ready(struct sock* sk);
 extern void ncp_tcp_write_space(struct sock* sk);
 extern void ncp_tcp_error_report(struct sock* sk);
 
diff --git a/fs/ncpfs/sock.c b/fs/ncpfs/sock.c
index 04a69a4d8e96..471bc3d1139e 100644
--- a/fs/ncpfs/sock.c
+++ b/fs/ncpfs/sock.c
@@ -97,11 +97,11 @@ static void ncp_req_put(struct ncp_request_reply *req)
                 kfree(req);
 }
 
-void ncp_tcp_data_ready(struct sock *sk, int len)
+void ncp_tcp_data_ready(struct sock *sk)
 {
         struct ncp_server *server = sk->sk_user_data;
 
-        server->data_ready(sk, len);
+        server->data_ready(sk);
         schedule_work(&server->rcv.tq);
 }
 
diff --git a/fs/ntfs/inode.c b/fs/ntfs/inode.c
index 9d8153ebacfb..f47af5e6e230 100644
--- a/fs/ntfs/inode.c
+++ b/fs/ntfs/inode.c
@@ -1704,8 +1704,6 @@ static int ntfs_read_locked_index_inode(struct inode *base_vi, struct inode *vi)
         iput(bvi);
 skip_large_index_stuff:
         /* Setup the operations for this index inode. */
-        vi->i_op = NULL;
-        vi->i_fop = NULL;
         vi->i_mapping->a_ops = &ntfs_mst_aops;
         vi->i_blocks = ni->allocated_size >> 9;
         /*
diff --git a/fs/ocfs2/cluster/tcp.c b/fs/ocfs2/cluster/tcp.c
index eb649d23a4de..c6b90e670389 100644
--- a/fs/ocfs2/cluster/tcp.c
+++ b/fs/ocfs2/cluster/tcp.c
@@ -137,7 +137,7 @@ static int o2net_sys_err_translations[O2NET_ERR_MAX] =
 static void o2net_sc_connect_completed(struct work_struct *work);
 static void o2net_rx_until_empty(struct work_struct *work);
 static void o2net_shutdown_sc(struct work_struct *work);
-static void o2net_listen_data_ready(struct sock *sk, int bytes);
+static void o2net_listen_data_ready(struct sock *sk);
 static void o2net_sc_send_keep_req(struct work_struct *work);
 static void o2net_idle_timer(unsigned long data);
 static void o2net_sc_postpone_idle(struct o2net_sock_container *sc);
@@ -597,9 +597,9 @@ static void o2net_set_nn_state(struct o2net_node *nn,
 }
 
 /* see o2net_register_callbacks() */
-static void o2net_data_ready(struct sock *sk, int bytes)
+static void o2net_data_ready(struct sock *sk)
 {
-        void (*ready)(struct sock *sk, int bytes);
+        void (*ready)(struct sock *sk);
 
         read_lock(&sk->sk_callback_lock);
         if (sk->sk_user_data) {
@@ -613,7 +613,7 @@ static void o2net_data_ready(struct sock *sk, int bytes)
         }
         read_unlock(&sk->sk_callback_lock);
 
-        ready(sk, bytes);
+        ready(sk);
 }
 
 /* see o2net_register_callbacks() */
@@ -916,57 +916,30 @@ static struct o2net_msg_handler *o2net_handler_get(u32 msg_type, u32 key)
 
 static int o2net_recv_tcp_msg(struct socket *sock, void *data, size_t len)
 {
-        int ret;
-        mm_segment_t oldfs;
-        struct kvec vec = {
-                .iov_len = len,
-                .iov_base = data,
-        };
-        struct msghdr msg = {
-                .msg_iovlen = 1,
-                .msg_iov = (struct iovec *)&vec,
-                .msg_flags = MSG_DONTWAIT,
-        };
-
-        oldfs = get_fs();
-        set_fs(get_ds());
-        ret = sock_recvmsg(sock, &msg, len, msg.msg_flags);
-        set_fs(oldfs);
-
-        return ret;
+        struct kvec vec = { .iov_len = len, .iov_base = data, };
+        struct msghdr msg = { .msg_flags = MSG_DONTWAIT, };
+        return kernel_recvmsg(sock, &msg, &vec, 1, len, msg.msg_flags);
 }
 
 static int o2net_send_tcp_msg(struct socket *sock, struct kvec *vec,
                               size_t veclen, size_t total)
 {
         int ret;
-        mm_segment_t oldfs;
-        struct msghdr msg = {
-                .msg_iov = (struct iovec *)vec,
-                .msg_iovlen = veclen,
-        };
+        struct msghdr msg;
 
         if (sock == NULL) {
                 ret = -EINVAL;
                 goto out;
         }
 
-        oldfs = get_fs();
-        set_fs(get_ds());
-        ret = sock_sendmsg(sock, &msg, total);
-        set_fs(oldfs);
-        if (ret != total) {
-                mlog(ML_ERROR, "sendmsg returned %d instead of %zu\n", ret,
-                     total);
-                if (ret >= 0)
-                        ret = -EPIPE; /* should be smarter, I bet */
-                goto out;
-        }
-
-        ret = 0;
+        ret = kernel_sendmsg(sock, &msg, vec, veclen, total);
+        if (likely(ret == total))
+                return 0;
+        mlog(ML_ERROR, "sendmsg returned %d instead of %zu\n", ret, total);
+        if (ret >= 0)
+                ret = -EPIPE; /* should be smarter, I bet */
 out:
-        if (ret < 0)
-                mlog(0, "returning error: %d\n", ret);
+        mlog(0, "returning error: %d\n", ret);
         return ret;
 }
 
@@ -1953,9 +1926,9 @@ static void o2net_accept_many(struct work_struct *work)
                 cond_resched();
 }
 
-static void o2net_listen_data_ready(struct sock *sk, int bytes)
+static void o2net_listen_data_ready(struct sock *sk)
 {
-        void (*ready)(struct sock *sk, int bytes);
+        void (*ready)(struct sock *sk);
 
         read_lock(&sk->sk_callback_lock);
         ready = sk->sk_user_data;
@@ -1978,7 +1951,6 @@ static void o2net_listen_data_ready(struct sock *sk, int bytes)
          */
 
         if (sk->sk_state == TCP_LISTEN) {
-                mlog(ML_TCP, "bytes: %d\n", bytes);
                 queue_work(o2net_wq, &o2net_listen_work);
         } else {
                 ready = NULL;
@@ -1987,7 +1959,7 @@ static void o2net_listen_data_ready(struct sock *sk, int bytes)
 out:
         read_unlock(&sk->sk_callback_lock);
         if (ready != NULL)
-                ready(sk, bytes);
+                ready(sk);
 }
 
 static int o2net_open_listening_sock(__be32 addr, __be16 port)
diff --git a/fs/ocfs2/cluster/tcp_internal.h b/fs/ocfs2/cluster/tcp_internal.h
index 4cbcb65784a3..dc024367110a 100644
--- a/fs/ocfs2/cluster/tcp_internal.h
+++ b/fs/ocfs2/cluster/tcp_internal.h
@@ -165,7 +165,7 @@ struct o2net_sock_container {
 
         /* original handlers for the sockets */
         void                    (*sc_state_change)(struct sock *sk);
-        void                    (*sc_data_ready)(struct sock *sk, int bytes);
+        void                    (*sc_data_ready)(struct sock *sk);
 
         u32                     sc_msg_key;
         u16                     sc_msg_type;
diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
index ff33c5ef87f2..8970dcf74de5 100644
--- a/fs/ocfs2/file.c
+++ b/fs/ocfs2/file.c
@@ -2367,15 +2367,18 @@ relock:
 
         if (direct_io) {
                 written = generic_file_direct_write(iocb, iov, &nr_segs, *ppos,
-                                                    ppos, count, ocount);
+                                                    count, ocount);
                 if (written < 0) {
                         ret = written;
                         goto out_dio;
                 }
         } else {
+                struct iov_iter from;
+                iov_iter_init(&from, iov, nr_segs, count, 0);
                 current->backing_dev_info = file->f_mapping->backing_dev_info;
-                written = generic_file_buffered_write(iocb, iov, nr_segs, *ppos,
-                                                      ppos, count, 0);
+                written = generic_perform_write(file, &from, *ppos);
+                if (likely(written >= 0))
+                        iocb->ki_pos = *ppos + written;
                 current->backing_dev_info = NULL;
         }
 
diff --git a/fs/open.c b/fs/open.c
index 631aea815def..3d30eb1fc95e 100644
--- a/fs/open.c
+++ b/fs/open.c
@@ -655,35 +655,6 @@ out:
         return error;
 }
 
-/*
- * You have to be very careful that these write
- * counts get cleaned up in error cases and
- * upon __fput().  This should probably never
- * be called outside of __dentry_open().
- */
-static inline int __get_file_write_access(struct inode *inode,
-                                          struct vfsmount *mnt)
-{
-        int error;
-        error = get_write_access(inode);
-        if (error)
-                return error;
-        /*
-         * Do not take mount writer counts on
-         * special files since no writes to
-         * the mount itself will occur.
-         */
-        if (!special_file(inode->i_mode)) {
-                /*
-                 * Balanced in __fput()
-                 */
-                error = __mnt_want_write(mnt);
-                if (error)
-                        put_write_access(inode);
-        }
-        return error;
-}
-
 int open_check_o_direct(struct file *f)
 {
         /* NB: we're sure to have correct a_ops only after f_op->open */
@@ -708,26 +679,28 @@ static int do_dentry_open(struct file *f,
         f->f_mode = OPEN_FMODE(f->f_flags) | FMODE_LSEEK |
                                 FMODE_PREAD | FMODE_PWRITE;
 
-        if (unlikely(f->f_flags & O_PATH))
-                f->f_mode = FMODE_PATH;
-
         path_get(&f->f_path);
         inode = f->f_inode = f->f_path.dentry->d_inode;
-        if (f->f_mode & FMODE_WRITE) {
-                error = __get_file_write_access(inode, f->f_path.mnt);
-                if (error)
-                        goto cleanup_file;
-                if (!special_file(inode->i_mode))
-                        file_take_write(f);
-        }
-
         f->f_mapping = inode->i_mapping;
 
-        if (unlikely(f->f_mode & FMODE_PATH)) {
+        if (unlikely(f->f_flags & O_PATH)) {
+                f->f_mode = FMODE_PATH;
                 f->f_op = &empty_fops;
                 return 0;
         }
 
+        if (f->f_mode & FMODE_WRITE && !special_file(inode->i_mode)) {
+                error = get_write_access(inode);
+                if (unlikely(error))
+                        goto cleanup_file;
+                error = __mnt_want_write(f->f_path.mnt);
+                if (unlikely(error)) {
+                        put_write_access(inode);
+                        goto cleanup_file;
+                }
+                f->f_mode |= FMODE_WRITER;
+        }
+
         /* POSIX.1-2008/SUSv4 Section XSI 2.9.7 */
         if (S_ISREG(inode->i_mode))
                 f->f_mode |= FMODE_ATOMIC_POS;
@@ -764,18 +737,9 @@ static int do_dentry_open(struct file *f,
 
 cleanup_all:
         fops_put(f->f_op);
-        if (f->f_mode & FMODE_WRITE) {
+        if (f->f_mode & FMODE_WRITER) {
                 put_write_access(inode);
-                if (!special_file(inode->i_mode)) {
-                        /*
-                         * We don't consider this a real
-                         * mnt_want/drop_write() pair
-                         * because it all happenend right
-                         * here, so just reset the state.
-                         */
-                        file_reset_write(f);
-                        __mnt_drop_write(f->f_path.mnt);
-                }
+                __mnt_drop_write(f->f_path.mnt);
         }
 cleanup_file:
         path_put(&f->f_path);
diff --git a/fs/pipe.c b/fs/pipe.c
index 78fd0d0788db..034bffac3f97 100644
--- a/fs/pipe.c
+++ b/fs/pipe.c
@@ -142,55 +142,6 @@ pipe_iov_copy_from_user(void *to, struct iovec *iov, unsigned long len,
         return 0;
 }
 
-static int
-pipe_iov_copy_to_user(struct iovec *iov, const void *from, unsigned long len,
-                      int atomic)
-{
-        unsigned long copy;
-
-        while (len > 0) {
-                while (!iov->iov_len)
-                        iov++;
-                copy = min_t(unsigned long, len, iov->iov_len);
-
-                if (atomic) {
-                        if (__copy_to_user_inatomic(iov->iov_base, from, copy))
-                                return -EFAULT;
-                } else {
-                        if (copy_to_user(iov->iov_base, from, copy))
-                                return -EFAULT;
-                }
-                from += copy;
-                len -= copy;
-                iov->iov_base += copy;
-                iov->iov_len -= copy;
-        }
-        return 0;
-}
-
-/*
- * Attempt to pre-fault in the user memory, so we can use atomic copies.
- * Returns the number of bytes not faulted in.
- */
-static int iov_fault_in_pages_write(struct iovec *iov, unsigned long len)
-{
-        while (!iov->iov_len)
-                iov++;
-
-        while (len > 0) {
-                unsigned long this_len;
-
-                this_len = min_t(unsigned long, len, iov->iov_len);
-                if (fault_in_pages_writeable(iov->iov_base, this_len))
-                        break;
-
-                len -= this_len;
-                iov++;
-        }
-
-        return len;
-}
-
 /*
  * Pre-fault in the user memory, so we can use atomic copies.
  */
@@ -226,52 +177,6 @@ static void anon_pipe_buf_release(struct pipe_inode_info *pipe,
 }
 
 /**
- * generic_pipe_buf_map - virtually map a pipe buffer
- * @pipe:       the pipe that the buffer belongs to
- * @buf:        the buffer that should be mapped
- * @atomic:     whether to use an atomic map
- *
- * Description:
- *      This function returns a kernel virtual address mapping for the
- *      pipe_buffer passed in @buf. If @atomic is set, an atomic map is provided
- *      and the caller has to be careful not to fault before calling
- *      the unmap function.
- *
- *      Note that this function calls kmap_atomic() if @atomic != 0.
- */
-void *generic_pipe_buf_map(struct pipe_inode_info *pipe,
-                           struct pipe_buffer *buf, int atomic)
-{
-        if (atomic) {
-                buf->flags |= PIPE_BUF_FLAG_ATOMIC;
-                return kmap_atomic(buf->page);
-        }
-
-        return kmap(buf->page);
-}
-EXPORT_SYMBOL(generic_pipe_buf_map);
-
-/**
- * generic_pipe_buf_unmap - unmap a previously mapped pipe buffer
- * @pipe:       the pipe that the buffer belongs to
- * @buf:        the buffer that should be unmapped
- * @map_data:   the data that the mapping function returned
- *
- * Description:
- *      This function undoes the mapping that ->map() provided.
- */
-void generic_pipe_buf_unmap(struct pipe_inode_info *pipe,
-                            struct pipe_buffer *buf, void *map_data)
-{
-        if (buf->flags & PIPE_BUF_FLAG_ATOMIC) {
-                buf->flags &= ~PIPE_BUF_FLAG_ATOMIC;
-                kunmap_atomic(map_data);
-        } else
-                kunmap(buf->page);
-}
-EXPORT_SYMBOL(generic_pipe_buf_unmap);
-
-/**
  * generic_pipe_buf_steal - attempt to take ownership of a &pipe_buffer
  * @pipe:       the pipe that the buffer belongs to
  * @buf:        the buffer to attempt to steal
@@ -351,8 +256,6 @@ EXPORT_SYMBOL(generic_pipe_buf_release);
 
 static const struct pipe_buf_operations anon_pipe_buf_ops = {
         .can_merge = 1,
-        .map = generic_pipe_buf_map,
-        .unmap = generic_pipe_buf_unmap,
         .confirm = generic_pipe_buf_confirm,
         .release = anon_pipe_buf_release,
         .steal = generic_pipe_buf_steal,
@@ -361,8 +264,6 @@ static const struct pipe_buf_operations anon_pipe_buf_ops = {
 
 static const struct pipe_buf_operations packet_pipe_buf_ops = {
         .can_merge = 0,
-        .map = generic_pipe_buf_map,
-        .unmap = generic_pipe_buf_unmap,
         .confirm = generic_pipe_buf_confirm,
         .release = anon_pipe_buf_release,
         .steal = generic_pipe_buf_steal,
@@ -379,12 +280,15 @@ pipe_read(struct kiocb *iocb, const struct iovec *_iov,
         ssize_t ret;
         struct iovec *iov = (struct iovec *)_iov;
         size_t total_len;
+        struct iov_iter iter;
 
         total_len = iov_length(iov, nr_segs);
         /* Null read succeeds. */
         if (unlikely(total_len == 0))
                 return 0;
 
+        iov_iter_init(&iter, iov, nr_segs, total_len, 0);
+
         do_wakeup = 0;
         ret = 0;
         __pipe_lock(pipe);
@@ -394,9 +298,9 @@ pipe_read(struct kiocb *iocb, const struct iovec *_iov,
                         int curbuf = pipe->curbuf;
                         struct pipe_buffer *buf = pipe->bufs + curbuf;
                         const struct pipe_buf_operations *ops = buf->ops;
-                        void *addr;
                         size_t chars = buf->len;
-                        int error, atomic;
+                        size_t written;
+                        int error;
 
                         if (chars > total_len)
                                 chars = total_len;
@@ -408,21 +312,10 @@ pipe_read(struct kiocb *iocb, const struct iovec *_iov,
                                 break;
                         }
 
-                        atomic = !iov_fault_in_pages_write(iov, chars);
-redo:
-                        addr = ops->map(pipe, buf, atomic);
-                        error = pipe_iov_copy_to_user(iov, addr + buf->offset, chars, atomic);
-                        ops->unmap(pipe, buf, addr);
-                        if (unlikely(error)) {
-                                /*
-                                 * Just retry with the slow path if we failed.
-                                 */
-                                if (atomic) {
-                                        atomic = 0;
-                                        goto redo;
-                                }
+                        written = copy_page_to_iter(buf->page, buf->offset, chars, &iter);
+                        if (unlikely(written < chars)) {
                                 if (!ret)
-                                        ret = error;
+                                        ret = -EFAULT;
                                 break;
                         }
                         ret += chars;
@@ -538,10 +431,16 @@ pipe_write(struct kiocb *iocb, const struct iovec *_iov,
 
                         iov_fault_in_pages_read(iov, chars);
 redo1:
-                        addr = ops->map(pipe, buf, atomic);
+                        if (atomic)
+                                addr = kmap_atomic(buf->page);
+                        else
+                                addr = kmap(buf->page);
                         error = pipe_iov_copy_from_user(offset + addr, iov,
                                                         chars, atomic);
-                        ops->unmap(pipe, buf, addr);
+                        if (atomic)
+                                kunmap_atomic(addr);
+                        else
+                                kunmap(buf->page);
                         ret = error;
                         do_wakeup = 1;
                         if (error) {
diff --git a/fs/pnode.c b/fs/pnode.c
index 88396df725b4..302bf22c4a30 100644
--- a/fs/pnode.c
+++ b/fs/pnode.c
@@ -164,46 +164,94 @@ static struct mount *propagation_next(struct mount *m,
         }
 }
 
-/*
- * return the source mount to be used for cloning
- *
- * @dest        the current destination mount
- * @last_dest   the last seen destination mount
- * @last_src    the last seen source mount
- * @type        return CL_SLAVE if the new mount has to be
- *              cloned as a slave.
- */
-static struct mount *get_source(struct mount *dest,
-                                struct mount *last_dest,
-                                struct mount *last_src,
-                                int *type)
+static struct mount *next_group(struct mount *m, struct mount *origin)
 {
-        struct mount *p_last_src = NULL;
-        struct mount *p_last_dest = NULL;
-
-        while (last_dest != dest->mnt_master) {
-                p_last_dest = last_dest;
-                p_last_src = last_src;
-                last_dest = last_dest->mnt_master;
-                last_src = last_src->mnt_master;
+        while (1) {
+                while (1) {
+                        struct mount *next;
+                        if (!IS_MNT_NEW(m) && !list_empty(&m->mnt_slave_list))
+                                return first_slave(m);
+                        next = next_peer(m);
+                        if (m->mnt_group_id == origin->mnt_group_id) {
+                                if (next == origin)
+                                        return NULL;
+                        } else if (m->mnt_slave.next != &next->mnt_slave)
+                                break;
+                        m = next;
+                }
+                /* m is the last peer */
+                while (1) {
+                        struct mount *master = m->mnt_master;
+                        if (m->mnt_slave.next != &master->mnt_slave_list)
+                                return next_slave(m);
+                        m = next_peer(master);
+                        if (master->mnt_group_id == origin->mnt_group_id)
+                                break;
+                        if (master->mnt_slave.next == &m->mnt_slave)
+                                break;
+                        m = master;
+                }
+                if (m == origin)
+                        return NULL;
         }
+}
 
-        if (p_last_dest) {
-                do {
-                        p_last_dest = next_peer(p_last_dest);
-                } while (IS_MNT_NEW(p_last_dest));
-                /* is that a peer of the earlier? */
-                if (dest == p_last_dest) {
-                        *type = CL_MAKE_SHARED;
-                        return p_last_src;
+/* all accesses are serialized by namespace_sem */
+static struct user_namespace *user_ns;
+static struct mount *last_dest, *last_source, *dest_master;
+static struct mountpoint *mp;
+static struct hlist_head *list;
+
+static int propagate_one(struct mount *m)
+{
+        struct mount *child;
+        int type;
+        /* skip ones added by this propagate_mnt() */
+        if (IS_MNT_NEW(m))
+                return 0;
+        /* skip if mountpoint isn't covered by it */
+        if (!is_subdir(mp->m_dentry, m->mnt.mnt_root))
+                return 0;
+        if (m->mnt_group_id == last_dest->mnt_group_id) {
+                type = CL_MAKE_SHARED;
+        } else {
+                struct mount *n, *p;
+                for (n = m; ; n = p) {
+                        p = n->mnt_master;
+                        if (p == dest_master || IS_MNT_MARKED(p)) {
+                                while (last_dest->mnt_master != p) {
+                                        last_source = last_source->mnt_master;
+                                        last_dest = last_source->mnt_parent;
+                                }
+                                if (n->mnt_group_id != last_dest->mnt_group_id) {
+                                        last_source = last_source->mnt_master;
+                                        last_dest = last_source->mnt_parent;
+                                }
+                                break;
+                        }
                 }
+                type = CL_SLAVE;
+                /* beginning of peer group among the slaves? */
+                if (IS_MNT_SHARED(m))
+                        type |= CL_MAKE_SHARED;
         }
-        /* slave of the earlier, then */
-        *type = CL_SLAVE;
-        /* beginning of peer group among the slaves? */
-        if (IS_MNT_SHARED(dest))
-                *type |= CL_MAKE_SHARED;
-        return last_src;
+                
+        /* Notice when we are propagating across user namespaces */
+        if (m->mnt_ns->user_ns != user_ns)
+                type |= CL_UNPRIVILEGED;
+        child = copy_tree(last_source, last_source->mnt.mnt_root, type);
+        if (IS_ERR(child))
+                return PTR_ERR(child);
+        mnt_set_mountpoint(m, mp, child);
+        last_dest = m;
+        last_source = child;
+        if (m->mnt_master != dest_master) {
+                read_seqlock_excl(&mount_lock);
+                SET_MNT_MARK(m->mnt_master);
+                read_sequnlock_excl(&mount_lock);
+        }
+        hlist_add_head(&child->mnt_hash, list);
+        return 0;
 }
 
 /*
@@ -222,56 +270,48 @@ static struct mount *get_source(struct mount *dest,
 int propagate_mnt(struct mount *dest_mnt, struct mountpoint *dest_mp,
                     struct mount *source_mnt, struct hlist_head *tree_list)
 {
-        struct user_namespace *user_ns = current->nsproxy->mnt_ns->user_ns;
-        struct mount *m, *child;
+        struct mount *m, *n;
         int ret = 0;
-        struct mount *prev_dest_mnt = dest_mnt;
-        struct mount *prev_src_mnt  = source_mnt;
-        HLIST_HEAD(tmp_list);
-
-        for (m = propagation_next(dest_mnt, dest_mnt); m;
-                        m = propagation_next(m, dest_mnt)) {
-                int type;
-                struct mount *source;
-
-                if (IS_MNT_NEW(m))
-                        continue;
-
-                source =  get_source(m, prev_dest_mnt, prev_src_mnt, &type);
-
-                /* Notice when we are propagating across user namespaces */
-                if (m->mnt_ns->user_ns != user_ns)
-                        type |= CL_UNPRIVILEGED;
-
-                child = copy_tree(source, source->mnt.mnt_root, type);
-                if (IS_ERR(child)) {
-                        ret = PTR_ERR(child);
-                        tmp_list = *tree_list;
-                        tmp_list.first->pprev = &tmp_list.first;
-                        INIT_HLIST_HEAD(tree_list);
+
+        /*
+         * we don't want to bother passing tons of arguments to
+         * propagate_one(); everything is serialized by namespace_sem,
+         * so globals will do just fine.
+         */
+        user_ns = current->nsproxy->mnt_ns->user_ns;
+        last_dest = dest_mnt;
+        last_source = source_mnt;
+        mp = dest_mp;
+        list = tree_list;
+        dest_master = dest_mnt->mnt_master;
+
+        /* all peers of dest_mnt, except dest_mnt itself */
+        for (n = next_peer(dest_mnt); n != dest_mnt; n = next_peer(n)) {
+                ret = propagate_one(n);
+                if (ret)
                         goto out;
-                }
+        }
 
-                if (is_subdir(dest_mp->m_dentry, m->mnt.mnt_root)) {
-                        mnt_set_mountpoint(m, dest_mp, child);
-                        hlist_add_head(&child->mnt_hash, tree_list);
-                } else {
-                        /*
-                         * This can happen if the parent mount was bind mounted
-                         * on some subdirectory of a shared/slave mount.
-                         */
-                        hlist_add_head(&child->mnt_hash, &tmp_list);
-                }
-                prev_dest_mnt = m;
-                prev_src_mnt  = child;
+        /* all slave groups */
+        for (m = next_group(dest_mnt, dest_mnt); m;
+                        m = next_group(m, dest_mnt)) {
+                /* everything in that slave group */
+                n = m;
+                do {
+                        ret = propagate_one(n);
+                        if (ret)
+                                goto out;
+                        n = next_peer(n);
+                } while (n != m);
         }
 out:
-        lock_mount_hash();
-        while (!hlist_empty(&tmp_list)) {
-                child = hlist_entry(tmp_list.first, struct mount, mnt_hash);
-                umount_tree(child, 0);
+        read_seqlock_excl(&mount_lock);
+        hlist_for_each_entry(n, tree_list, mnt_hash) {
+                m = n->mnt_parent;
+                if (m->mnt_master != dest_mnt->mnt_master)
+                        CLEAR_MNT_MARK(m->mnt_master);
         }
-        unlock_mount_hash();
+        read_sequnlock_excl(&mount_lock);
         return ret;
 }
 
diff --git a/fs/pnode.h b/fs/pnode.h
index fc28a27fa892..4a246358b031 100644
--- a/fs/pnode.h
+++ b/fs/pnode.h
@@ -16,6 +16,9 @@
 #define IS_MNT_NEW(m)  (!(m)->mnt_ns)
 #define CLEAR_MNT_SHARED(m) ((m)->mnt.mnt_flags &= ~MNT_SHARED)
 #define IS_MNT_UNBINDABLE(m) ((m)->mnt.mnt_flags & MNT_UNBINDABLE)
+#define IS_MNT_MARKED(m) ((m)->mnt.mnt_flags & MNT_MARKED)
+#define SET_MNT_MARK(m) ((m)->mnt.mnt_flags |= MNT_MARKED)
+#define CLEAR_MNT_MARK(m) ((m)->mnt.mnt_flags &= ~MNT_MARKED)
 
 #define CL_EXPIRE               0x01
 #define CL_SLAVE                0x02
diff --git a/fs/proc/base.c b/fs/proc/base.c
index 6b7087e2e8fb..2d696b0c93bf 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -200,41 +200,9 @@ static int proc_root_link(struct dentry *dentry, struct path *path)
         return result;
 }
 
-static int proc_pid_cmdline(struct task_struct *task, char * buffer)
+static int proc_pid_cmdline(struct task_struct *task, char *buffer)
 {
-        int res = 0;
-        unsigned int len;
-        struct mm_struct *mm = get_task_mm(task);
-        if (!mm)
-                goto out;
-        if (!mm->arg_end)
-                goto out_mm;    /* Shh! No looking before we're done */
-
-        len = mm->arg_end - mm->arg_start;
- 
-        if (len > PAGE_SIZE)
-                len = PAGE_SIZE;
- 
-        res = access_process_vm(task, mm->arg_start, buffer, len, 0);
-
-        // If the nul at the end of args has been overwritten, then
-        // assume application is using setproctitle(3).
-        if (res > 0 && buffer[res-1] != '\0' && len < PAGE_SIZE) {
-                len = strnlen(buffer, res);
-                if (len < res) {
-                    res = len;
-                } else {
-                        len = mm->env_end - mm->env_start;
-                        if (len > PAGE_SIZE - res)
-                                len = PAGE_SIZE - res;
-                        res += access_process_vm(task, mm->env_start, buffer+res, len, 0);
-                        res = strnlen(buffer, res);
-                }
-        }
-out_mm:
-        mmput(mm);
-out:
-        return res;
+        return get_cmdline(task, buffer, PAGE_SIZE);
 }
 
 static int proc_pid_auxv(struct task_struct *task, char *buffer)
diff --git a/fs/proc/namespaces.c b/fs/proc/namespaces.c
index 9ae46b87470d..89026095f2b5 100644
--- a/fs/proc/namespaces.c
+++ b/fs/proc/namespaces.c
@@ -146,7 +146,7 @@ static int proc_ns_readlink(struct dentry *dentry, char __user *buffer, int bufl
         struct task_struct *task;
         void *ns;
         char name[50];
-        int len = -EACCES;
+        int res = -EACCES;
 
         task = get_proc_task(inode);
         if (!task)
@@ -155,24 +155,18 @@ static int proc_ns_readlink(struct dentry *dentry, char __user *buffer, int bufl
         if (!ptrace_may_access(task, PTRACE_MODE_READ))
                 goto out_put_task;
 
-        len = -ENOENT;
+        res = -ENOENT;
         ns = ns_ops->get(task);
         if (!ns)
                 goto out_put_task;
 
         snprintf(name, sizeof(name), "%s:[%u]", ns_ops->name, ns_ops->inum(ns));
-        len = strlen(name);
-
-        if (len > buflen)
-                len = buflen;
-        if (copy_to_user(buffer, name, len))
-                len = -EFAULT;
-
+        res = readlink_copy(buffer, buflen, name);
         ns_ops->put(ns);
 out_put_task:
         put_task_struct(task);
 out:
-        return len;
+        return res;
 }
 
 static const struct inode_operations proc_ns_link_inode_operations = {
diff --git a/fs/proc/self.c b/fs/proc/self.c
index ffeb202ec942..4348bb8907c2 100644
--- a/fs/proc/self.c
+++ b/fs/proc/self.c
@@ -16,7 +16,7 @@ static int proc_self_readlink(struct dentry *dentry, char __user *buffer,
         if (!tgid)
                 return -ENOENT;
         sprintf(tmp, "%d", tgid);
-        return vfs_readlink(dentry,buffer,buflen,tmp);
+        return readlink_copy(buffer, buflen, tmp);
 }
 
 static void *proc_self_follow_link(struct dentry *dentry, struct nameidata *nd)
diff --git a/fs/proc_namespace.c b/fs/proc_namespace.c
index 7be26f03a3f5..1a81373947f3 100644
--- a/fs/proc_namespace.c
+++ b/fs/proc_namespace.c
@@ -267,6 +267,7 @@ static int mounts_open_common(struct inode *inode, struct file *file,
         p->root = root;
         p->m.poll_event = ns->event;
         p->show = show;
+        p->cached_event = ~0ULL;
 
         return 0;
 
diff --git a/fs/splice.c b/fs/splice.c
index 12028fa41def..9bc07d2b53cf 100644
--- a/fs/splice.c
+++ b/fs/splice.c
@@ -136,8 +136,6 @@ error:
 
 const struct pipe_buf_operations page_cache_pipe_buf_ops = {
         .can_merge = 0,
-        .map = generic_pipe_buf_map,
-        .unmap = generic_pipe_buf_unmap,
         .confirm = page_cache_pipe_buf_confirm,
         .release = page_cache_pipe_buf_release,
         .steal = page_cache_pipe_buf_steal,
@@ -156,8 +154,6 @@ static int user_page_pipe_buf_steal(struct pipe_inode_info *pipe,
 
 static const struct pipe_buf_operations user_page_pipe_buf_ops = {
         .can_merge = 0,
-        .map = generic_pipe_buf_map,
-        .unmap = generic_pipe_buf_unmap,
         .confirm = generic_pipe_buf_confirm,
         .release = page_cache_pipe_buf_release,
         .steal = user_page_pipe_buf_steal,
@@ -547,8 +543,6 @@ EXPORT_SYMBOL(generic_file_splice_read);
 
 static const struct pipe_buf_operations default_pipe_buf_ops = {
         .can_merge = 0,
-        .map = generic_pipe_buf_map,
-        .unmap = generic_pipe_buf_unmap,
         .confirm = generic_pipe_buf_confirm,
         .release = generic_pipe_buf_release,
         .steal = generic_pipe_buf_steal,
@@ -564,8 +558,6 @@ static int generic_pipe_buf_nosteal(struct pipe_inode_info *pipe,
 /* Pipe buffer operations for a socket and similar. */
 const struct pipe_buf_operations nosteal_pipe_buf_ops = {
         .can_merge = 0,
-        .map = generic_pipe_buf_map,
-        .unmap = generic_pipe_buf_unmap,
         .confirm = generic_pipe_buf_confirm,
         .release = generic_pipe_buf_release,
         .steal = generic_pipe_buf_nosteal,
@@ -767,13 +759,13 @@ int pipe_to_file(struct pipe_inode_info *pipe, struct pipe_buffer *buf,
                 goto out;
 
         if (buf->page != page) {
-                char *src = buf->ops->map(pipe, buf, 1);
+                char *src = kmap_atomic(buf->page);
                 char *dst = kmap_atomic(page);
 
                 memcpy(dst + offset, src + buf->offset, this_len);
                 flush_dcache_page(page);
                 kunmap_atomic(dst);
-                buf->ops->unmap(pipe, buf, src);
+                kunmap_atomic(src);
         }
         ret = pagecache_write_end(file, mapping, sd->pos, this_len, this_len,
                                 page, fsdata);
@@ -1067,9 +1059,9 @@ static int write_pipe_buf(struct pipe_inode_info *pipe, struct pipe_buffer *buf,
         void *data;
         loff_t tmp = sd->pos;
 
-        data = buf->ops->map(pipe, buf, 0);
+        data = kmap(buf->page);
         ret = __kernel_write(sd->u.file, data + buf->offset, sd->len, &tmp);
-        buf->ops->unmap(pipe, buf, data);
+        kunmap(buf->page);
 
         return ret;
 }
@@ -1528,116 +1520,48 @@ static int get_iovec_page_array(const struct iovec __user *iov,
 static int pipe_to_user(struct pipe_inode_info *pipe, struct pipe_buffer *buf,
                         struct splice_desc *sd)
 {
-        char *src;
-        int ret;
-
-        /*
-         * See if we can use the atomic maps, by prefaulting in the
-         * pages and doing an atomic copy
-         */
-        if (!fault_in_pages_writeable(sd->u.userptr, sd->len)) {
-                src = buf->ops->map(pipe, buf, 1);
-                ret = __copy_to_user_inatomic(sd->u.userptr, src + buf->offset,
-                                                        sd->len);
-                buf->ops->unmap(pipe, buf, src);
-                if (!ret) {
-                        ret = sd->len;
-                        goto out;
-                }
-        }
-
-        /*
-         * No dice, use slow non-atomic map and copy
-         */
-        src = buf->ops->map(pipe, buf, 0);
-
-        ret = sd->len;
-        if (copy_to_user(sd->u.userptr, src + buf->offset, sd->len))
-                ret = -EFAULT;
-
-        buf->ops->unmap(pipe, buf, src);
-out:
-        if (ret > 0)
-                sd->u.userptr += ret;
-        return ret;
+        int n = copy_page_to_iter(buf->page, buf->offset, sd->len, sd->u.data);
+        return n == sd->len ? n : -EFAULT;
 }
 
 /*
  * For lack of a better implementation, implement vmsplice() to userspace
  * as a simple copy of the pipes pages to the user iov.
  */
-static long vmsplice_to_user(struct file *file, const struct iovec __user *iov,
+static long vmsplice_to_user(struct file *file, const struct iovec __user *uiov,
                              unsigned long nr_segs, unsigned int flags)
 {
         struct pipe_inode_info *pipe;
         struct splice_desc sd;
-        ssize_t size;
-        int error;
         long ret;
+        struct iovec iovstack[UIO_FASTIOV];
+        struct iovec *iov = iovstack;
+        struct iov_iter iter;
+        ssize_t count = 0;
 
         pipe = get_pipe_info(file);
         if (!pipe)
                 return -EBADF;
 
-        pipe_lock(pipe);
-
-        error = ret = 0;
-        while (nr_segs) {
-                void __user *base;
-                size_t len;
-
-                /*
-                 * Get user address base and length for this iovec.
-                 */
-                error = get_user(base, &iov->iov_base);
-                if (unlikely(error))
-                        break;
-                error = get_user(len, &iov->iov_len);
-                if (unlikely(error))
-                        break;
-
-                /*
-                 * Sanity check this iovec. 0 read succeeds.
-                 */
-                if (unlikely(!len))
-                        break;
-                if (unlikely(!base)) {
-                        error = -EFAULT;
-                        break;
-                }
-
-                if (unlikely(!access_ok(VERIFY_WRITE, base, len))) {
-                        error = -EFAULT;
-                        break;
-                }
-
-                sd.len = 0;
-                sd.total_len = len;
-                sd.flags = flags;
-                sd.u.userptr = base;
-                sd.pos = 0;
-
-                size = __splice_from_pipe(pipe, &sd, pipe_to_user);
-                if (size < 0) {
-                        if (!ret)
-                                ret = size;
-
-                        break;
-                }
-
-                ret += size;
+        ret = rw_copy_check_uvector(READ, uiov, nr_segs,
+                                    ARRAY_SIZE(iovstack), iovstack, &iov);
+        if (ret <= 0)
+                return ret;
 
-                if (size < len)
-                        break;
+        iov_iter_init(&iter, iov, nr_segs, count, 0);
 
-                nr_segs--;
-                iov++;
-        }
+        sd.len = 0;
+        sd.total_len = count;
+        sd.flags = flags;
+        sd.u.data = &iter;
+        sd.pos = 0;
 
+        pipe_lock(pipe);
+        ret = __splice_from_pipe(pipe, &sd, pipe_to_user);
         pipe_unlock(pipe);
 
-        if (!ret)
-                ret = error;
+        if (iov != iovstack)
+                kfree(iov);
 
         return ret;
 }
diff --git a/fs/udf/file.c b/fs/udf/file.c
index 1037637957c7..d2c170f8b035 100644
--- a/fs/udf/file.c
+++ b/fs/udf/file.c
@@ -171,7 +171,7 @@ static ssize_t udf_file_aio_write(struct kiocb *iocb, const struct iovec *iov,
         } else
                 up_write(&iinfo->i_data_sem);
 
-        retval = __generic_file_aio_write(iocb, iov, nr_segs, &iocb->ki_pos);
+        retval = __generic_file_aio_write(iocb, iov, nr_segs);
         mutex_unlock(&inode->i_mutex);
 
         if (retval > 0) {
diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c
index 003c0051b62f..79e96ce98733 100644
--- a/fs/xfs/xfs_file.c
+++ b/fs/xfs/xfs_file.c
@@ -699,7 +699,7 @@ xfs_file_dio_aio_write(
 
         trace_xfs_file_direct_write(ip, count, iocb->ki_pos, 0);
         ret = generic_file_direct_write(iocb, iovp,
-                        &nr_segs, pos, &iocb->ki_pos, count, ocount);
+                        &nr_segs, pos, count, ocount);
 
 out:
         xfs_rw_iunlock(ip, iolock);
@@ -715,7 +715,7 @@ xfs_file_buffered_aio_write(
         const struct iovec      *iovp,
         unsigned long           nr_segs,
         loff_t                  pos,
-        size_t                  ocount)
+        size_t                  count)
 {
         struct file             *file = iocb->ki_filp;
         struct address_space    *mapping = file->f_mapping;
@@ -724,7 +724,7 @@ xfs_file_buffered_aio_write(
         ssize_t                 ret;
         int                     enospc = 0;
         int                     iolock = XFS_IOLOCK_EXCL;
-        size_t                  count = ocount;
+        struct iov_iter         from;
 
         xfs_rw_ilock(ip, iolock);
 
@@ -732,14 +732,15 @@ xfs_file_buffered_aio_write(
         if (ret)
                 goto out;
 
+        iov_iter_init(&from, iovp, nr_segs, count, 0);
         /* We can write back this queue in page reclaim */
         current->backing_dev_info = mapping->backing_dev_info;
 
 write_retry:
         trace_xfs_file_buffered_write(ip, count, iocb->ki_pos, 0);
-        ret = generic_file_buffered_write(iocb, iovp, nr_segs,
-                        pos, &iocb->ki_pos, count, 0);
-
+        ret = generic_perform_write(file, &from, pos);
+        if (likely(ret >= 0))
+                iocb->ki_pos = pos + ret;
         /*
          * If we just got an ENOSPC, try to write back all dirty inodes to
          * convert delalloc space to free up some of the excess reserved
diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c
index bcfe61202115..0b18776b075e 100644
--- a/fs/xfs/xfs_ioctl.c
+++ b/fs/xfs/xfs_ioctl.c
@@ -271,32 +271,6 @@ xfs_open_by_handle(
         return error;
 }
 
-/*
- * This is a copy from fs/namei.c:vfs_readlink(), except for removing it's
- * unused first argument.
- */
-STATIC int
-do_readlink(
-        char __user             *buffer,
-        int                     buflen,
-        const char              *link)
-{
-        int len;
-
-        len = PTR_ERR(link);
-        if (IS_ERR(link))
-                goto out;
-
-        len = strlen(link);
-        if (len > (unsigned) buflen)
-                len = buflen;
-        if (copy_to_user(buffer, link, len))
-                len = -EFAULT;
- out:
-        return len;
-}
-
-
 int
 xfs_readlink_by_handle(
         struct file             *parfilp,
@@ -334,7 +308,7 @@ xfs_readlink_by_handle(
         error = -xfs_readlink(XFS_I(dentry->d_inode), link);
         if (error)
                 goto out_kfree;
-        error = do_readlink(hreq->ohandle, olen, link);
+        error = readlink_copy(hreq->ohandle, olen, link);
         if (error)
                 goto out_kfree;
 
diff --git a/include/asm-generic/cmpxchg-local.h b/include/asm-generic/cmpxchg-local.h
index d8d4c898c1bb..70bef78912b7 100644
--- a/include/asm-generic/cmpxchg-local.h
+++ b/include/asm-generic/cmpxchg-local.h
@@ -4,7 +4,8 @@
 #include <linux/types.h>
 #include <linux/irqflags.h>
 
-extern unsigned long wrong_size_cmpxchg(volatile void *ptr);
+extern unsigned long wrong_size_cmpxchg(volatile void *ptr)
+        __noreturn;
 
 /*
  * Generic version of __cmpxchg_local (disables interrupts). Takes an unsigned
diff --git a/include/asm-generic/syscall.h b/include/asm-generic/syscall.h
index 5b09392db673..d401e5463fb0 100644
--- a/include/asm-generic/syscall.h
+++ b/include/asm-generic/syscall.h
@@ -144,8 +144,6 @@ void syscall_set_arguments(struct task_struct *task, struct pt_regs *regs,
 
 /**
  * syscall_get_arch - return the AUDIT_ARCH for the current system call
- * @task:       task of interest, must be in system call entry tracing
- * @regs:       task_pt_regs() of @task
  *
  * Returns the AUDIT_ARCH_* based on the system call convention in use.
  *
@@ -155,5 +153,5 @@ void syscall_set_arguments(struct task_struct *task, struct pt_regs *regs,
  * Architectures which permit CONFIG_HAVE_ARCH_SECCOMP_FILTER must
  * provide an implementation of this.
  */
-int syscall_get_arch(struct task_struct *task, struct pt_regs *regs);
+int syscall_get_arch(void);
 #endif  /* _ASM_SYSCALL_H */
diff --git a/include/linux/audit.h b/include/linux/audit.h
index ec1464df4c60..22cfddb75566 100644
--- a/include/linux/audit.h
+++ b/include/linux/audit.h
@@ -79,6 +79,14 @@ extern int is_audit_feature_set(int which);
 extern int __init audit_register_class(int class, unsigned *list);
 extern int audit_classify_syscall(int abi, unsigned syscall);
 extern int audit_classify_arch(int arch);
+/* only for compat system calls */
+extern unsigned compat_write_class[];
+extern unsigned compat_read_class[];
+extern unsigned compat_dir_class[];
+extern unsigned compat_chattr_class[];
+extern unsigned compat_signal_class[];
+
+extern int __weak audit_classify_compat_syscall(int abi, unsigned syscall);
 
 /* audit_names->type values */
 #define AUDIT_TYPE_UNKNOWN      0       /* we don't know yet */
@@ -94,6 +102,12 @@ struct filename;
 
 extern void audit_log_session_info(struct audit_buffer *ab);
 
+#ifdef CONFIG_AUDIT_COMPAT_GENERIC
+#define audit_is_compat(arch)  (!((arch) & __AUDIT_ARCH_64BIT))
+#else
+#define audit_is_compat(arch)  false
+#endif
+
 #ifdef CONFIG_AUDITSYSCALL
 /* These are defined in auditsc.c */
                                 /* Public API */
diff --git a/include/linux/bio.h b/include/linux/bio.h
index 5aa372a7380c..bba550826921 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -388,7 +388,7 @@ struct sg_iovec;
 struct rq_map_data;
 extern struct bio *bio_map_user_iov(struct request_queue *,
                                     struct block_device *,
-                                    struct sg_iovec *, int, int, gfp_t);
+                                    const struct sg_iovec *, int, int, gfp_t);
 extern void bio_unmap_user(struct bio *);
 extern struct bio *bio_map_kern(struct request_queue *, void *, unsigned int,
                                 gfp_t);
@@ -414,7 +414,8 @@ extern int bio_alloc_pages(struct bio *bio, gfp_t gfp);
 extern struct bio *bio_copy_user(struct request_queue *, struct rq_map_data *,
                                  unsigned long, unsigned int, int, gfp_t);
 extern struct bio *bio_copy_user_iov(struct request_queue *,
-                                     struct rq_map_data *, struct sg_iovec *,
+                                     struct rq_map_data *,
+                                     const struct sg_iovec *,
                                      int, int, gfp_t);
 extern int bio_uncopy_user(struct bio *);
 void zero_fill_bio(struct bio *bio);
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 99617cf7dd1a..0d84981ee03f 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -835,8 +835,8 @@ extern int blk_rq_map_user(struct request_queue *, struct request *,
 extern int blk_rq_unmap_user(struct bio *);
 extern int blk_rq_map_kern(struct request_queue *, struct request *, void *, unsigned int, gfp_t);
 extern int blk_rq_map_user_iov(struct request_queue *, struct request *,
-                               struct rq_map_data *, struct sg_iovec *, int,
-                               unsigned int, gfp_t);
+                               struct rq_map_data *, const struct sg_iovec *,
+                               int, unsigned int, gfp_t);
 extern int blk_execute_rq(struct request_queue *, struct gendisk *,
                           struct request *, int);
 extern void blk_execute_rq_nowait(struct request_queue *, struct gendisk *,
diff --git a/include/linux/buffer_head.h b/include/linux/buffer_head.h
index d77797a52b7b..c40302f909ce 100644
--- a/include/linux/buffer_head.h
+++ b/include/linux/buffer_head.h
@@ -210,8 +210,8 @@ int block_write_full_page(struct page *page, get_block_t *get_block,
 int block_write_full_page_endio(struct page *page, get_block_t *get_block,
                         struct writeback_control *wbc, bh_end_io_t *handler);
 int block_read_full_page(struct page*, get_block_t*);
-int block_is_partially_uptodate(struct page *page, read_descriptor_t *desc,
-                                unsigned long from);
+int block_is_partially_uptodate(struct page *page, unsigned long from,
+                                unsigned long count);
 int block_write_begin(struct address_space *mapping, loff_t pos, unsigned len,
                 unsigned flags, struct page **pagep, get_block_t *get_block);
 int __block_write_begin(struct page *page, loff_t pos, unsigned len,
diff --git a/include/linux/compiler-clang.h b/include/linux/compiler-clang.h
new file mode 100644
index 000000000000..d1e49d52b640
--- /dev/null
+++ b/include/linux/compiler-clang.h
@@ -0,0 +1,12 @@
+#ifndef __LINUX_COMPILER_H
+#error "Please don't include <linux/compiler-clang.h> directly, include <linux/compiler.h> instead."
+#endif
+
+/* Some compiler specific definitions are overwritten here
+ * for Clang compiler
+ */
+
+#ifdef uninitialized_var
+#undef uninitialized_var
+#define uninitialized_var(x) x = *(&(x))
+#endif
diff --git a/include/linux/compiler.h b/include/linux/compiler.h
index 2472740d7ab2..ee7239ea1583 100644
--- a/include/linux/compiler.h
+++ b/include/linux/compiler.h
@@ -63,6 +63,13 @@ extern void __chk_io_ptr(const volatile void __iomem *);
 # include <linux/compiler-intel.h>
 #endif
 
+/* Clang compiler defines __GNUC__. So we will overwrite implementations
+ * coming from above header files here
+ */
+#ifdef __clang__
+#include <linux/compiler-clang.h>
+#endif
+
 /*
  * Generic compiler-dependent macros required for kernel
  * build go below this comment. Actual compiler/compiler version
diff --git a/include/linux/fdtable.h b/include/linux/fdtable.h
index 70e8e21c0a30..230f87bdf5ad 100644
--- a/include/linux/fdtable.h
+++ b/include/linux/fdtable.h
@@ -63,8 +63,6 @@ struct file_operations;
 struct vfsmount;
 struct dentry;
 
-extern void __init files_defer_init(void);
-
 #define rcu_dereference_check_fdtable(files, fdtfd) \
         rcu_dereference_check((fdtfd), lockdep_is_held(&(files)->file_lock))
 
diff --git a/include/linux/filter.h b/include/linux/filter.h
index 262dcbb75ffe..024fd03e5d18 100644
--- a/include/linux/filter.h
+++ b/include/linux/filter.h
@@ -220,7 +220,6 @@ enum {
         BPF_S_ANC_RXHASH,
         BPF_S_ANC_CPU,
         BPF_S_ANC_ALU_XOR_X,
-        BPF_S_ANC_SECCOMP_LD_W,
         BPF_S_ANC_VLAN_TAG,
         BPF_S_ANC_VLAN_TAG_PRESENT,
         BPF_S_ANC_PAY_OFFSET,
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 81048f9bc783..7a9c5bca2b76 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -48,6 +48,7 @@ struct cred;
 struct swap_info_struct;
 struct seq_file;
 struct workqueue_struct;
+struct iov_iter;
 
 extern void __init inode_init(void);
 extern void __init inode_init_early(void);
@@ -125,6 +126,8 @@ typedef void (dio_iodone_t)(struct kiocb *iocb, loff_t offset,
 
 /* File needs atomic accesses to f_pos */
 #define FMODE_ATOMIC_POS        ((__force fmode_t)0x8000)
+/* Write access to underlying fs */
+#define FMODE_WRITER            ((__force fmode_t)0x10000)
 
 /* File was opened by fanotify and shouldn't generate fanotify events */
 #define FMODE_NONOTIFY          ((__force fmode_t)0x1000000)
@@ -293,38 +296,6 @@ struct page;
 struct address_space;
 struct writeback_control;
 
-struct iov_iter {
-        const struct iovec *iov;
-        unsigned long nr_segs;
-        size_t iov_offset;
-        size_t count;
-};
-
-size_t iov_iter_copy_from_user_atomic(struct page *page,
-                struct iov_iter *i, unsigned long offset, size_t bytes);
-size_t iov_iter_copy_from_user(struct page *page,
-                struct iov_iter *i, unsigned long offset, size_t bytes);
-void iov_iter_advance(struct iov_iter *i, size_t bytes);
-int iov_iter_fault_in_readable(struct iov_iter *i, size_t bytes);
-size_t iov_iter_single_seg_count(const struct iov_iter *i);
-
-static inline void iov_iter_init(struct iov_iter *i,
-                        const struct iovec *iov, unsigned long nr_segs,
-                        size_t count, size_t written)
-{
-        i->iov = iov;
-        i->nr_segs = nr_segs;
-        i->iov_offset = 0;
-        i->count = count + written;
-
-        iov_iter_advance(i, written);
-}
-
-static inline size_t iov_iter_count(struct iov_iter *i)
-{
-        return i->count;
-}
-
 /*
  * "descriptor" for what we're up to with a read.
  * This allows us to use the same read code yet
@@ -383,7 +354,7 @@ struct address_space_operations {
         int (*migratepage) (struct address_space *,
                         struct page *, struct page *, enum migrate_mode);
         int (*launder_page) (struct page *);
-        int (*is_partially_uptodate) (struct page *, read_descriptor_t *,
+        int (*is_partially_uptodate) (struct page *, unsigned long,
                                         unsigned long);
         void (*is_dirty_writeback) (struct page *, bool *, bool *);
         int (*error_remove_page)(struct address_space *, struct page *);
@@ -770,9 +741,6 @@ static inline int ra_has_index(struct file_ra_state *ra, pgoff_t index)
                 index <  ra->start + ra->size);
 }
 
-#define FILE_MNT_WRITE_TAKEN    1
-#define FILE_MNT_WRITE_RELEASED 2
-
 struct file {
         union {
                 struct llist_node       fu_llist;
@@ -810,9 +778,6 @@ struct file {
         struct list_head        f_tfile_llink;
 #endif /* #ifdef CONFIG_EPOLL */
         struct address_space    *f_mapping;
-#ifdef CONFIG_DEBUG_WRITECOUNT
-        unsigned long f_mnt_write_state;
-#endif
 } __attribute__((aligned(4)));  /* lest something weird decides that 2 is OK */
 
 struct file_handle {
@@ -830,49 +795,6 @@ static inline struct file *get_file(struct file *f)
 #define fput_atomic(x)  atomic_long_add_unless(&(x)->f_count, -1, 1)
 #define file_count(x)   atomic_long_read(&(x)->f_count)
 
-#ifdef CONFIG_DEBUG_WRITECOUNT
-static inline void file_take_write(struct file *f)
-{
-        WARN_ON(f->f_mnt_write_state != 0);
-        f->f_mnt_write_state = FILE_MNT_WRITE_TAKEN;
-}
-static inline void file_release_write(struct file *f)
-{
-        f->f_mnt_write_state |= FILE_MNT_WRITE_RELEASED;
-}
-static inline void file_reset_write(struct file *f)
-{
-        f->f_mnt_write_state = 0;
-}
-static inline void file_check_state(struct file *f)
-{
-        /*
-         * At this point, either both or neither of these bits
-         * should be set.
-         */
-        WARN_ON(f->f_mnt_write_state == FILE_MNT_WRITE_TAKEN);
-        WARN_ON(f->f_mnt_write_state == FILE_MNT_WRITE_RELEASED);
-}
-static inline int file_check_writeable(struct file *f)
-{
-        if (f->f_mnt_write_state == FILE_MNT_WRITE_TAKEN)
-                return 0;
-        printk(KERN_WARNING "writeable file with no "
-                            "mnt_want_write()\n");
-        WARN_ON(1);
-        return -EINVAL;
-}
-#else /* !CONFIG_DEBUG_WRITECOUNT */
-static inline void file_take_write(struct file *filp) {}
-static inline void file_release_write(struct file *filp) {}
-static inline void file_reset_write(struct file *filp) {}
-static inline void file_check_state(struct file *filp) {}
-static inline int file_check_writeable(struct file *filp)
-{
-        return 0;
-}
-#endif /* CONFIG_DEBUG_WRITECOUNT */
-
 #define MAX_NON_LFS     ((1UL<<31) - 1)
 
 /* Page cache limit. The filesystems should put that into their s_maxbytes 
@@ -2481,16 +2403,13 @@ extern int generic_file_mmap(struct file *, struct vm_area_struct *);
 extern int generic_file_readonly_mmap(struct file *, struct vm_area_struct *);
 extern int generic_file_remap_pages(struct vm_area_struct *, unsigned long addr,
                 unsigned long size, pgoff_t pgoff);
-extern int file_read_actor(read_descriptor_t * desc, struct page *page, unsigned long offset, unsigned long size);
 int generic_write_checks(struct file *file, loff_t *pos, size_t *count, int isblk);
 extern ssize_t generic_file_aio_read(struct kiocb *, const struct iovec *, unsigned long, loff_t);
-extern ssize_t __generic_file_aio_write(struct kiocb *, const struct iovec *, unsigned long,
-                loff_t *);
+extern ssize_t __generic_file_aio_write(struct kiocb *, const struct iovec *, unsigned long);
 extern ssize_t generic_file_aio_write(struct kiocb *, const struct iovec *, unsigned long, loff_t);
 extern ssize_t generic_file_direct_write(struct kiocb *, const struct iovec *,
-                unsigned long *, loff_t, loff_t *, size_t, size_t);
-extern ssize_t generic_file_buffered_write(struct kiocb *, const struct iovec *,
-                unsigned long, loff_t, loff_t *, size_t, ssize_t);
+                unsigned long *, loff_t, size_t, size_t);
+extern ssize_t generic_perform_write(struct file *, struct iov_iter *, loff_t);
 extern ssize_t do_sync_read(struct file *filp, char __user *buf, size_t len, loff_t *ppos);
 extern ssize_t do_sync_write(struct file *filp, const char __user *buf, size_t len, loff_t *ppos);
 extern int generic_segment_checks(const struct iovec *iov,
@@ -2582,7 +2501,7 @@ extern const struct file_operations generic_ro_fops;
 
 #define special_file(m) (S_ISCHR(m)||S_ISBLK(m)||S_ISFIFO(m)||S_ISSOCK(m))
 
-extern int vfs_readlink(struct dentry *, char __user *, int, const char *);
+extern int readlink_copy(char __user *, int, const char *);
 extern int page_readlink(struct dentry *, char __user *, int);
 extern void *page_follow_link_light(struct dentry *, struct nameidata *);
 extern void page_put_link(struct dentry *, struct nameidata *, void *);
diff --git a/include/linux/ftrace_event.h b/include/linux/ftrace_event.h
index cdc30111d2f8..d16da3e53bc7 100644
--- a/include/linux/ftrace_event.h
+++ b/include/linux/ftrace_event.h
@@ -7,6 +7,7 @@
 #include <linux/percpu.h>
 #include <linux/hardirq.h>
 #include <linux/perf_event.h>
+#include <linux/tracepoint.h>
 
 struct trace_array;
 struct trace_buffer;
@@ -232,6 +233,7 @@ enum {
         TRACE_EVENT_FL_IGNORE_ENABLE_BIT,
         TRACE_EVENT_FL_WAS_ENABLED_BIT,
         TRACE_EVENT_FL_USE_CALL_FILTER_BIT,
+        TRACE_EVENT_FL_TRACEPOINT_BIT,
 };
 
 /*
@@ -244,6 +246,7 @@ enum {
  *                    (used for module unloading, if a module event is enabled,
  *                     it is best to clear the buffers that used it).
  *  USE_CALL_FILTER - For ftrace internal events, don't use file filter
+ *  TRACEPOINT    - Event is a tracepoint
  */
 enum {
         TRACE_EVENT_FL_FILTERED         = (1 << TRACE_EVENT_FL_FILTERED_BIT),
@@ -252,12 +255,17 @@ enum {
         TRACE_EVENT_FL_IGNORE_ENABLE    = (1 << TRACE_EVENT_FL_IGNORE_ENABLE_BIT),
         TRACE_EVENT_FL_WAS_ENABLED      = (1 << TRACE_EVENT_FL_WAS_ENABLED_BIT),
         TRACE_EVENT_FL_USE_CALL_FILTER  = (1 << TRACE_EVENT_FL_USE_CALL_FILTER_BIT),
+        TRACE_EVENT_FL_TRACEPOINT       = (1 << TRACE_EVENT_FL_TRACEPOINT_BIT),
 };
 
 struct ftrace_event_call {
         struct list_head        list;
         struct ftrace_event_class *class;
-        char                    *name;
+        union {
+                char                    *name;
+                /* Set TRACE_EVENT_FL_TRACEPOINT flag when using "tp" */
+                struct tracepoint       *tp;
+        };
         struct trace_event      event;
         const char              *print_fmt;
         struct event_filter     *filter;
@@ -271,6 +279,7 @@ struct ftrace_event_call {
          *   bit 3:             ftrace internal event (do not enable)
          *   bit 4:             Event was enabled by module
          *   bit 5:             use call filter rather than file filter
+         *   bit 6:             Event is a tracepoint
          */
         int                     flags; /* static flags of different events */
 
@@ -283,6 +292,15 @@ struct ftrace_event_call {
 #endif
 };
 
+static inline const char *
+ftrace_event_name(struct ftrace_event_call *call)
+{
+        if (call->flags & TRACE_EVENT_FL_TRACEPOINT)
+                return call->tp ? call->tp->name : NULL;
+        else
+                return call->name;
+}
+
 struct trace_array;
 struct ftrace_subsystem_dir;
 
@@ -353,7 +371,7 @@ struct ftrace_event_file {
 #define __TRACE_EVENT_FLAGS(name, value)                                \
         static int __init trace_init_flags_##name(void)                 \
         {                                                               \
-                event_##name.flags = value;                             \
+                event_##name.flags |= value;                            \
                 return 0;                                               \
         }                                                               \
         early_initcall(trace_init_flags_##name);
diff --git a/include/linux/mm.h b/include/linux/mm.h
index abc848412e3c..bf9811e1321a 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1204,6 +1204,7 @@ void account_page_writeback(struct page *page);
 int set_page_dirty(struct page *page);
 int set_page_dirty_lock(struct page *page);
 int clear_page_dirty_for_io(struct page *page);
+int get_cmdline(struct task_struct *task, char *buffer, int buflen);
 
 /* Is the vma a continuation of the stack vma above it? */
 static inline int vma_growsdown(struct vm_area_struct *vma, unsigned long addr)
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index 2b58d192ea24..8967e20cbe57 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -124,6 +124,8 @@ struct page {
         union {
                 struct list_head lru;   /* Pageout list, eg. active_list
                                          * protected by zone->lru_lock !
+                                         * Can be used as a generic list
+                                         * by the page owner.
                                          */
                 struct {                /* slub per cpu partial pages */
                         struct page *next;      /* Next partial slab */
@@ -136,7 +138,6 @@ struct page {
 #endif
                 };
 
-                struct list_head list;  /* slobs list of pages */
                 struct slab *slab_page; /* slab fields */
                 struct rcu_head rcu_head;       /* Used by SLAB
                                                  * when destroying via RCU
diff --git a/include/linux/mod_devicetable.h b/include/linux/mod_devicetable.h
index 9a165a213d93..44eeef0da186 100644
--- a/include/linux/mod_devicetable.h
+++ b/include/linux/mod_devicetable.h
@@ -556,6 +556,11 @@ struct amba_id {
  * See documentation of "x86_match_cpu" for details.
  */
 
+/*
+ * MODULE_DEVICE_TABLE expects this struct to be called x86cpu_device_id.
+ * Although gcc seems to ignore this error, clang fails without this define.
+ */
+#define x86cpu_device_id x86_cpu_id
 struct x86_cpu_id {
         __u16 vendor;
         __u16 family;
diff --git a/include/linux/mount.h b/include/linux/mount.h
index 371d346fa270..839bac270904 100644
--- a/include/linux/mount.h
+++ b/include/linux/mount.h
@@ -44,6 +44,8 @@ struct mnt_namespace;
 #define MNT_SHARED_MASK (MNT_UNBINDABLE)
 #define MNT_PROPAGATION_MASK    (MNT_SHARED | MNT_UNBINDABLE)
 
+#define MNT_INTERNAL_FLAGS (MNT_SHARED | MNT_WRITE_HOLD | MNT_INTERNAL | \
+                            MNT_DOOMED | MNT_SYNC_UMOUNT | MNT_MARKED)
 
 #define MNT_INTERNAL    0x4000
 
@@ -51,6 +53,7 @@ struct mnt_namespace;
 #define MNT_LOCKED              0x800000
 #define MNT_DOOMED              0x1000000
 #define MNT_SYNC_UMOUNT         0x2000000
+#define MNT_MARKED              0x4000000
 
 struct vfsmount {
         struct dentry *mnt_root;        /* root of the mounted tree */
diff --git a/include/linux/nbd.h b/include/linux/nbd.h
index ae4981ebd18e..f62f78aef4ac 100644
--- a/include/linux/nbd.h
+++ b/include/linux/nbd.h
@@ -24,8 +24,7 @@ struct request;
 struct nbd_device {
         int flags;
         int harderror;          /* Code of hard error                   */
-        struct socket * sock;
-        struct file * file;     /* If == NULL, device is not ready, yet */
+        struct socket * sock;   /* If == NULL, device is not ready, yet */
         int magic;
 
         spinlock_t queue_lock;
diff --git a/include/linux/netfilter/nf_conntrack_proto_gre.h b/include/linux/netfilter/nf_conntrack_proto_gre.h
index ec2ffaf418c8..df78dc2b5524 100644
--- a/include/linux/netfilter/nf_conntrack_proto_gre.h
+++ b/include/linux/netfilter/nf_conntrack_proto_gre.h
@@ -87,7 +87,6 @@ int nf_ct_gre_keymap_add(struct nf_conn *ct, enum ip_conntrack_dir dir,
 /* delete keymap entries */
 void nf_ct_gre_keymap_destroy(struct nf_conn *ct);
 
-void nf_ct_gre_keymap_flush(struct net *net);
 void nf_nat_need_gre(void);
 
 #endif /* __KERNEL__ */
diff --git a/include/linux/ntb.h b/include/linux/ntb.h
index f6a15205853b..9ac1a62fc6f5 100644
--- a/include/linux/ntb.h
+++ b/include/linux/ntb.h
@@ -50,8 +50,13 @@ struct ntb_transport_qp;
 
 struct ntb_client {
         struct device_driver driver;
-        int (*probe) (struct pci_dev *pdev);
-        void (*remove) (struct pci_dev *pdev);
+        int (*probe)(struct pci_dev *pdev);
+        void (*remove)(struct pci_dev *pdev);
+};
+
+enum {
+        NTB_LINK_DOWN = 0,
+        NTB_LINK_UP,
 };
 
 int ntb_register_client(struct ntb_client *drvr);
@@ -60,11 +65,11 @@ int ntb_register_client_dev(char *device_name);
 void ntb_unregister_client_dev(char *device_name);
 
 struct ntb_queue_handlers {
-        void (*rx_handler) (struct ntb_transport_qp *qp, void *qp_data,
-                            void *data, int len);
-        void (*tx_handler) (struct ntb_transport_qp *qp, void *qp_data,
-                            void *data, int len);
-        void (*event_handler) (void *data, int status);
+        void (*rx_handler)(struct ntb_transport_qp *qp, void *qp_data,
+                           void *data, int len);
+        void (*tx_handler)(struct ntb_transport_qp *qp, void *qp_data,
+                           void *data, int len);
+        void (*event_handler)(void *data, int status);
 };
 
 unsigned char ntb_transport_qp_num(struct ntb_transport_qp *qp);
diff --git a/include/linux/nvme.h b/include/linux/nvme.h
index 6b9aafed225f..a50173ca1d72 100644
--- a/include/linux/nvme.h
+++ b/include/linux/nvme.h
@@ -66,20 +66,25 @@ enum {
 
 #define NVME_VS(major, minor)   (major << 16 | minor)
 
-#define NVME_IO_TIMEOUT (5 * HZ)
+extern unsigned char io_timeout;
+#define NVME_IO_TIMEOUT (io_timeout * HZ)
 
 /*
  * Represents an NVM Express device.  Each nvme_dev is a PCI function.
  */
 struct nvme_dev {
         struct list_head node;
-        struct nvme_queue **queues;
+        struct nvme_queue __rcu **queues;
+        unsigned short __percpu *io_queue;
         u32 __iomem *dbs;
         struct pci_dev *pci_dev;
         struct dma_pool *prp_page_pool;
         struct dma_pool *prp_small_pool;
         int instance;
-        int queue_count;
+        unsigned queue_count;
+        unsigned online_queues;
+        unsigned max_qid;
+        int q_depth;
         u32 db_stride;
         u32 ctrl_config;
         struct msix_entry *entry;
@@ -89,6 +94,7 @@ struct nvme_dev {
         struct miscdevice miscdev;
         work_func_t reset_workfn;
         struct work_struct reset_work;
+        struct notifier_block nb;
         char name[12];
         char serial[20];
         char model[40];
@@ -131,6 +137,7 @@ struct nvme_iod {
         int length;             /* Of data, in bytes */
         unsigned long start_time;
         dma_addr_t first_dma;
+        struct list_head node;
         struct scatterlist sg[0];
 };
 
@@ -146,16 +153,12 @@ static inline u64 nvme_block_nr(struct nvme_ns *ns, sector_t sector)
  */
 void nvme_free_iod(struct nvme_dev *dev, struct nvme_iod *iod);
 
-int nvme_setup_prps(struct nvme_dev *dev, struct nvme_common_command *cmd,
-                        struct nvme_iod *iod, int total_len, gfp_t gfp);
+int nvme_setup_prps(struct nvme_dev *, struct nvme_iod *, int , gfp_t);
 struct nvme_iod *nvme_map_user_pages(struct nvme_dev *dev, int write,
                                 unsigned long addr, unsigned length);
 void nvme_unmap_user_pages(struct nvme_dev *dev, int write,
                         struct nvme_iod *iod);
-struct nvme_queue *get_nvmeq(struct nvme_dev *dev);
-void put_nvmeq(struct nvme_queue *nvmeq);
-int nvme_submit_sync_cmd(struct nvme_queue *nvmeq, struct nvme_command *cmd,
-                                                u32 *result, unsigned timeout);
+int nvme_submit_io_cmd(struct nvme_dev *, struct nvme_command *, u32 *);
 int nvme_submit_flush_data(struct nvme_queue *nvmeq, struct nvme_ns *ns);
 int nvme_submit_admin_cmd(struct nvme_dev *, struct nvme_command *,
                                                         u32 *result);
diff --git a/include/linux/pipe_fs_i.h b/include/linux/pipe_fs_i.h
index 4d9389c79e61..eb8b8ac6df3c 100644
--- a/include/linux/pipe_fs_i.h
+++ b/include/linux/pipe_fs_i.h
@@ -83,23 +83,6 @@ struct pipe_buf_operations {
         int can_merge;
 
         /*
-         * ->map() returns a virtual address mapping of the pipe buffer.
-         * The last integer flag reflects whether this should be an atomic
-         * mapping or not. The atomic map is faster, however you can't take
-         * page faults before calling ->unmap() again. So if you need to eg
-         * access user data through copy_to/from_user(), then you must get
-         * a non-atomic map. ->map() uses the kmap_atomic slot for
-         * atomic maps, you have to be careful if mapping another page as
-         * source or destination for a copy.
-         */
-        void * (*map)(struct pipe_inode_info *, struct pipe_buffer *, int);
-
-        /*
-         * Undoes ->map(), finishes the virtual mapping of the pipe buffer.
-         */
-        void (*unmap)(struct pipe_inode_info *, struct pipe_buffer *, void *);
-
-        /*
          * ->confirm() verifies that the data in the pipe buffer is there
          * and that the contents are good. If the pages in the pipe belong
          * to a file system, we may need to wait for IO completion in this
@@ -150,8 +133,6 @@ struct pipe_inode_info *alloc_pipe_info(void);
 void free_pipe_info(struct pipe_inode_info *);
 
 /* Generic pipe buffer ops functions */
-void *generic_pipe_buf_map(struct pipe_inode_info *, struct pipe_buffer *, int);
-void generic_pipe_buf_unmap(struct pipe_inode_info *, struct pipe_buffer *, void *);
 void generic_pipe_buf_get(struct pipe_inode_info *, struct pipe_buffer *);
 int generic_pipe_buf_confirm(struct pipe_inode_info *, struct pipe_buffer *);
 int generic_pipe_buf_steal(struct pipe_inode_info *, struct pipe_buffer *);
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 075b3056c0c0..25f54c79f757 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1719,6 +1719,24 @@ static inline pid_t task_tgid_vnr(struct task_struct *tsk)
 }
 
 
+static inline int pid_alive(const struct task_struct *p);
+static inline pid_t task_ppid_nr_ns(const struct task_struct *tsk, struct pid_namespace *ns)
+{
+        pid_t pid = 0;
+
+        rcu_read_lock();
+        if (pid_alive(tsk))
+                pid = task_tgid_nr_ns(rcu_dereference(tsk->real_parent), ns);
+        rcu_read_unlock();
+
+        return pid;
+}
+
+static inline pid_t task_ppid_nr(const struct task_struct *tsk)
+{
+        return task_ppid_nr_ns(tsk, &init_pid_ns);
+}
+
 static inline pid_t task_pgrp_nr_ns(struct task_struct *tsk,
                                         struct pid_namespace *ns)
 {
@@ -1758,7 +1776,7 @@ static inline pid_t task_pgrp_nr(struct task_struct *tsk)
  *
  * Return: 1 if the process is alive. 0 otherwise.
  */
-static inline int pid_alive(struct task_struct *p)
+static inline int pid_alive(const struct task_struct *p)
 {
         return p->pids[PIDTYPE_PID].pid != NULL;
 }
diff --git a/include/linux/slab.h b/include/linux/slab.h
index 3dd389aa91c7..307bfbe62387 100644
--- a/include/linux/slab.h
+++ b/include/linux/slab.h
@@ -242,6 +242,17 @@ struct kmem_cache {
 #define KMALLOC_MIN_SIZE (1 << KMALLOC_SHIFT_LOW)
 #endif
 
+/*
+ * This restriction comes from byte sized index implementation.
+ * Page size is normally 2^12 bytes and, in this case, if we want to use
+ * byte sized index which can represent 2^8 entries, the size of the object
+ * should be equal or greater to 2^12 / 2^8 = 2^4 = 16.
+ * If minimum size of kmalloc is less than 16, we use it as minimum object
+ * size and give up to use byte sized index.
+ */
+#define SLAB_OBJ_MIN_SIZE      (KMALLOC_MIN_SIZE < 16 ? \
+                               (KMALLOC_MIN_SIZE) : 16)
+
 #ifndef CONFIG_SLOB
 extern struct kmem_cache *kmalloc_caches[KMALLOC_SHIFT_HIGH + 1];
 #ifdef CONFIG_ZONE_DMA
diff --git a/include/linux/sunrpc/svcsock.h b/include/linux/sunrpc/svcsock.h
index 947009ed5996..2e780134f449 100644
--- a/include/linux/sunrpc/svcsock.h
+++ b/include/linux/sunrpc/svcsock.h
@@ -22,7 +22,7 @@ struct svc_sock {
 
         /* We keep the old state_change and data_ready CB's here */
         void                    (*sk_ostate)(struct sock *);
-        void                    (*sk_odata)(struct sock *, int bytes);
+        void                    (*sk_odata)(struct sock *);
         void                    (*sk_owspace)(struct sock *);
 
         /* private TCP part */
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index 697ceb70a9a9..a4a0588c5397 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -119,8 +119,10 @@ extern struct trace_event_functions exit_syscall_print_funcs;
         static struct syscall_metadata __syscall_meta_##sname;          \
         static struct ftrace_event_call __used                          \
           event_enter_##sname = {                                       \
-                .name                   = "sys_enter"#sname,            \
                 .class                  = &event_class_syscall_enter,   \
+                {                                                       \
+                        .name                   = "sys_enter"#sname,    \
+                },                                                      \
                 .event.funcs            = &enter_syscall_print_funcs,   \
                 .data                   = (void *)&__syscall_meta_##sname,\
                 .flags                  = TRACE_EVENT_FL_CAP_ANY,       \
@@ -133,8 +135,10 @@ extern struct trace_event_functions exit_syscall_print_funcs;
         static struct syscall_metadata __syscall_meta_##sname;          \
         static struct ftrace_event_call __used                          \
           event_exit_##sname = {                                        \
-                .name                   = "sys_exit"#sname,             \
                 .class                  = &event_class_syscall_exit,    \
+                {                                                       \
+                        .name                   = "sys_exit"#sname,     \
+                },                                                      \
                 .event.funcs            = &exit_syscall_print_funcs,    \
                 .data                   = (void *)&__syscall_meta_##sname,\
                 .flags                  = TRACE_EVENT_FL_CAP_ANY,       \
diff --git a/include/linux/tracepoint.h b/include/linux/tracepoint.h
index 812b2553dfd8..9d30ee469c2a 100644
--- a/include/linux/tracepoint.h
+++ b/include/linux/tracepoint.h
@@ -6,7 +6,7 @@
  *
  * See Documentation/trace/tracepoints.txt.
  *
- * (C) Copyright 2008 Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
+ * Copyright (C) 2008-2014 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
  *
  * Heavily inspired from the Linux Kernel Markers.
  *
@@ -21,6 +21,7 @@
 
 struct module;
 struct tracepoint;
+struct notifier_block;
 
 struct tracepoint_func {
         void *func;
@@ -35,31 +36,38 @@ struct tracepoint {
         struct tracepoint_func __rcu *funcs;
 };
 
-/*
- * Connect a probe to a tracepoint.
- * Internal API, should not be used directly.
- */
-extern int tracepoint_probe_register(const char *name, void *probe, void *data);
-
-/*
- * Disconnect a probe from a tracepoint.
- * Internal API, should not be used directly.
- */
 extern int
-tracepoint_probe_unregister(const char *name, void *probe, void *data);
+tracepoint_probe_register(struct tracepoint *tp, void *probe, void *data);
+extern int
+tracepoint_probe_unregister(struct tracepoint *tp, void *probe, void *data);
+extern void
+for_each_kernel_tracepoint(void (*fct)(struct tracepoint *tp, void *priv),
+                void *priv);
 
 #ifdef CONFIG_MODULES
 struct tp_module {
         struct list_head list;
-        unsigned int num_tracepoints;
-        struct tracepoint * const *tracepoints_ptrs;
+        struct module *mod;
 };
+
 bool trace_module_has_bad_taint(struct module *mod);
+extern int register_tracepoint_module_notifier(struct notifier_block *nb);
+extern int unregister_tracepoint_module_notifier(struct notifier_block *nb);
 #else
 static inline bool trace_module_has_bad_taint(struct module *mod)
 {
         return false;
 }
+static inline
+int register_tracepoint_module_notifier(struct notifier_block *nb)
+{
+        return 0;
+}
+static inline
+int unregister_tracepoint_module_notifier(struct notifier_block *nb)
+{
+        return 0;
+}
 #endif /* CONFIG_MODULES */
 
 /*
@@ -72,6 +80,11 @@ static inline void tracepoint_synchronize_unregister(void)
         synchronize_sched();
 }
 
+#ifdef CONFIG_HAVE_SYSCALL_TRACEPOINTS
+extern void syscall_regfunc(void);
+extern void syscall_unregfunc(void);
+#endif /* CONFIG_HAVE_SYSCALL_TRACEPOINTS */
+
 #define PARAMS(args...) args
 
 #endif /* _LINUX_TRACEPOINT_H */
@@ -160,14 +173,14 @@ static inline void tracepoint_synchronize_unregister(void)
         static inline int                                               \
         register_trace_##name(void (*probe)(data_proto), void *data)    \
         {                                                               \
-                return tracepoint_probe_register(#name, (void *)probe,  \
-                                                 data);                 \
+                return tracepoint_probe_register(&__tracepoint_##name,  \
+                                                (void *)probe, data);   \
         }                                                               \
         static inline int                                               \
         unregister_trace_##name(void (*probe)(data_proto), void *data)  \
         {                                                               \
-                return tracepoint_probe_unregister(#name, (void *)probe, \
-                                                   data);               \
+                return tracepoint_probe_unregister(&__tracepoint_##name,\
+                                                (void *)probe, data);   \
         }                                                               \
         static inline void                                              \
         check_trace_callback_type_##name(void (*cb)(data_proto))        \
diff --git a/include/linux/uio.h b/include/linux/uio.h
index c55ce243cc09..199bcc34241b 100644
--- a/include/linux/uio.h
+++ b/include/linux/uio.h
@@ -9,14 +9,23 @@
 #ifndef __LINUX_UIO_H
 #define __LINUX_UIO_H
 
+#include <linux/kernel.h>
 #include <uapi/linux/uio.h>
 
+struct page;
 
 struct kvec {
         void *iov_base; /* and that should *never* hold a userland pointer */
         size_t iov_len;
 };
 
+struct iov_iter {
+        const struct iovec *iov;
+        unsigned long nr_segs;
+        size_t iov_offset;
+        size_t count;
+};
+
 /*
  * Total number of bytes covered by an iovec.
  *
@@ -34,8 +43,51 @@ static inline size_t iov_length(const struct iovec *iov, unsigned long nr_segs)
         return ret;
 }
 
+static inline struct iovec iov_iter_iovec(const struct iov_iter *iter)
+{
+        return (struct iovec) {
+                .iov_base = iter->iov->iov_base + iter->iov_offset,
+                .iov_len = min(iter->count,
+                               iter->iov->iov_len - iter->iov_offset),
+        };
+}
+
+#define iov_for_each(iov, iter, start)                          \
+        for (iter = (start);                                    \
+             (iter).count &&                                    \
+             ((iov = iov_iter_iovec(&(iter))), 1);              \
+             iov_iter_advance(&(iter), (iov).iov_len))
+
 unsigned long iov_shorten(struct iovec *iov, unsigned long nr_segs, size_t to);
 
+size_t iov_iter_copy_from_user_atomic(struct page *page,
+                struct iov_iter *i, unsigned long offset, size_t bytes);
+size_t iov_iter_copy_from_user(struct page *page,
+                struct iov_iter *i, unsigned long offset, size_t bytes);
+void iov_iter_advance(struct iov_iter *i, size_t bytes);
+int iov_iter_fault_in_readable(struct iov_iter *i, size_t bytes);
+size_t iov_iter_single_seg_count(const struct iov_iter *i);
+size_t copy_page_to_iter(struct page *page, size_t offset, size_t bytes,
+                         struct iov_iter *i);
+
+static inline void iov_iter_init(struct iov_iter *i,
+                        const struct iovec *iov, unsigned long nr_segs,
+                        size_t count, size_t written)
+{
+        i->iov = iov;
+        i->nr_segs = nr_segs;
+        i->iov_offset = 0;
+        i->count = count + written;
+
+        iov_iter_advance(i, written);
+}
+
+static inline size_t iov_iter_count(struct iov_iter *i)
+{
+        return i->count;
+}
+
 int memcpy_fromiovec(unsigned char *kdata, struct iovec *iov, int len);
 int memcpy_toiovec(struct iovec *iov, unsigned char *kdata, int len);
+
 #endif
diff --git a/include/media/rc-core.h b/include/media/rc-core.h
index 0b9f890ce431..fde142e5f25a 100644
--- a/include/media/rc-core.h
+++ b/include/media/rc-core.h
@@ -60,6 +60,7 @@ enum rc_filter_type {
 /**
  * struct rc_dev - represents a remote control device
  * @dev: driver model's view of this device
+ * @sysfs_groups: sysfs attribute groups
  * @input_name: name of the input child device
  * @input_phys: physical path to the input child device
  * @input_id: id of the input child device (struct input_id)
@@ -112,10 +113,12 @@ enum rc_filter_type {
  *      device doesn't interrupt host until it sees IR pulses
  * @s_learning_mode: enable wide band receiver used for learning
  * @s_carrier_report: enable carrier reports
- * @s_filter: set the scancode filter of a given type
+ * @s_filter: set the scancode filter 
+ * @s_wakeup_filter: set the wakeup scancode filter
  */
 struct rc_dev {
         struct device                   dev;
+        const struct attribute_group    *sysfs_groups[5];
         const char                      *input_name;
         const char                      *input_phys;
         struct input_id                 input_id;
@@ -159,8 +162,9 @@ struct rc_dev {
         int                             (*s_learning_mode)(struct rc_dev *dev, int enable);
         int                             (*s_carrier_report) (struct rc_dev *dev, int enable);
         int                             (*s_filter)(struct rc_dev *dev,
-                                                    enum rc_filter_type type,
                                                     struct rc_scancode_filter *filter);
+        int                             (*s_wakeup_filter)(struct rc_dev *dev,
+                                                           struct rc_scancode_filter *filter);
 };
 
 #define to_rc_dev(d) container_of(d, struct rc_dev, dev)
diff --git a/include/net/9p/client.h b/include/net/9p/client.h
index c38a005bd0cf..6fab66c5c5af 100644
--- a/include/net/9p/client.h
+++ b/include/net/9p/client.h
@@ -67,7 +67,6 @@ enum p9_trans_status {
  * @REQ_STATUS_ALLOC: request has been allocated but not sent
  * @REQ_STATUS_UNSENT: request waiting to be sent
  * @REQ_STATUS_SENT: request sent to server
- * @REQ_STATUS_FLSH: a flush has been sent for this request
  * @REQ_STATUS_RCVD: response received from server
  * @REQ_STATUS_FLSHD: request has been flushed
  * @REQ_STATUS_ERROR: request encountered an error on the client side
@@ -83,7 +82,6 @@ enum p9_req_status_t {
         REQ_STATUS_ALLOC,
         REQ_STATUS_UNSENT,
         REQ_STATUS_SENT,
-        REQ_STATUS_FLSH,
         REQ_STATUS_RCVD,
         REQ_STATUS_FLSHD,
         REQ_STATUS_ERROR,
@@ -130,7 +128,6 @@ struct p9_req_t {
  * @proto_version: 9P protocol version to use
  * @trans_mod: module API instantiated with this client
  * @trans: tranport instance state and API
- * @conn: connection state information used by trans_fd
  * @fidpool: fid handle accounting for session
  * @fidlist: List of active fid handles
  * @tagpool - transaction id accounting for session
@@ -159,7 +156,6 @@ struct p9_client {
         struct p9_trans_module *trans_mod;
         enum p9_trans_status status;
         void *trans;
-        struct p9_conn *conn;
 
         struct p9_idpool *fidpool;
         struct list_head fidlist;
@@ -261,7 +257,7 @@ int p9_client_mkdir_dotl(struct p9_fid *fid, char *name, int mode,
 int p9_client_lock_dotl(struct p9_fid *fid, struct p9_flock *flock, u8 *status);
 int p9_client_getlock_dotl(struct p9_fid *fid, struct p9_getlock *fl);
 struct p9_req_t *p9_tag_lookup(struct p9_client *, u16);
-void p9_client_cb(struct p9_client *c, struct p9_req_t *req);
+void p9_client_cb(struct p9_client *c, struct p9_req_t *req, int status);
 
 int p9_parse_header(struct p9_fcall *, int32_t *, int8_t *, int16_t *, int);
 int p9stat_read(struct p9_client *, char *, int, struct p9_wstat *);
diff --git a/include/net/9p/transport.h b/include/net/9p/transport.h
index 9a36d9297114..d9fa68f26c41 100644
--- a/include/net/9p/transport.h
+++ b/include/net/9p/transport.h
@@ -40,6 +40,8 @@
  * @close: member function to discard a connection on this transport
  * @request: member function to issue a request to the transport
  * @cancel: member function to cancel a request (if it hasn't been sent)
+ * @cancelled: member function to notify that a cancelled request will not
+ *             not receive a reply
  *
  * This is the basic API for a transport module which is registered by the
  * transport module with the 9P core network module and used by the client
@@ -58,6 +60,7 @@ struct p9_trans_module {
         void (*close) (struct p9_client *);
         int (*request) (struct p9_client *, struct p9_req_t *req);
         int (*cancel) (struct p9_client *, struct p9_req_t *req);
+        int (*cancelled)(struct p9_client *, struct p9_req_t *req);
         int (*zc_request)(struct p9_client *, struct p9_req_t *,
                           char *, char *, int , int, int, int);
 };
diff --git a/include/net/dst.h b/include/net/dst.h
index 46ed958e0c6e..71c60f42be48 100644
--- a/include/net/dst.h
+++ b/include/net/dst.h
@@ -45,7 +45,7 @@ struct dst_entry {
         void                    *__pad1;
 #endif
         int                     (*input)(struct sk_buff *);
-        int                     (*output)(struct sk_buff *);
+        int                     (*output)(struct sock *sk, struct sk_buff *skb);
 
         unsigned short          flags;
 #define DST_HOST                0x0001
@@ -367,7 +367,11 @@ static inline struct dst_entry *skb_dst_pop(struct sk_buff *skb)
         return child;
 }
 
-int dst_discard(struct sk_buff *skb);
+int dst_discard_sk(struct sock *sk, struct sk_buff *skb);
+static inline int dst_discard(struct sk_buff *skb)
+{
+        return dst_discard_sk(skb->sk, skb);
+}
 void *dst_alloc(struct dst_ops *ops, struct net_device *dev, int initial_ref,
                 int initial_obsolete, unsigned short flags);
 void __dst_free(struct dst_entry *dst);
@@ -449,9 +453,13 @@ static inline void dst_set_expires(struct dst_entry *dst, int timeout)
 }
 
 /* Output packet to network from transport.  */
+static inline int dst_output_sk(struct sock *sk, struct sk_buff *skb)
+{
+        return skb_dst(skb)->output(sk, skb);
+}
 static inline int dst_output(struct sk_buff *skb)
 {
-        return skb_dst(skb)->output(skb);
+        return dst_output_sk(skb->sk, skb);
 }
 
 /* Input packet from network to transport.  */
diff --git a/include/net/inet6_connection_sock.h b/include/net/inet6_connection_sock.h
index f981ba7adeed..74af137304be 100644
--- a/include/net/inet6_connection_sock.h
+++ b/include/net/inet6_connection_sock.h
@@ -40,7 +40,7 @@ void inet6_csk_reqsk_queue_hash_add(struct sock *sk, struct request_sock *req,
 
 void inet6_csk_addr2sockaddr(struct sock *sk, struct sockaddr *uaddr);
 
-int inet6_csk_xmit(struct sk_buff *skb, struct flowi *fl);
+int inet6_csk_xmit(struct sock *sk, struct sk_buff *skb, struct flowi *fl);
 
 struct dst_entry *inet6_csk_update_pmtu(struct sock *sk, u32 mtu);
 #endif /* _INET6_CONNECTION_SOCK_H */
diff --git a/include/net/inet_connection_sock.h b/include/net/inet_connection_sock.h
index c55aeed41ace..7a4313887568 100644
--- a/include/net/inet_connection_sock.h
+++ b/include/net/inet_connection_sock.h
@@ -36,7 +36,7 @@ struct tcp_congestion_ops;
  * (i.e. things that depend on the address family)
  */
 struct inet_connection_sock_af_ops {
-        int         (*queue_xmit)(struct sk_buff *skb, struct flowi *fl);
+        int         (*queue_xmit)(struct sock *sk, struct sk_buff *skb, struct flowi *fl);
         void        (*send_check)(struct sock *sk, struct sk_buff *skb);
         int         (*rebuild_header)(struct sock *sk);
         void        (*sk_rx_dst_set)(struct sock *sk, const struct sk_buff *skb);
diff --git a/include/net/ip.h b/include/net/ip.h
index 25064c28e059..3ec2b0fb9d83 100644
--- a/include/net/ip.h
+++ b/include/net/ip.h
@@ -104,14 +104,19 @@ int ip_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt,
            struct net_device *orig_dev);
 int ip_local_deliver(struct sk_buff *skb);
 int ip_mr_input(struct sk_buff *skb);
-int ip_output(struct sk_buff *skb);
-int ip_mc_output(struct sk_buff *skb);
+int ip_output(struct sock *sk, struct sk_buff *skb);
+int ip_mc_output(struct sock *sk, struct sk_buff *skb);
 int ip_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *));
 int ip_do_nat(struct sk_buff *skb);
 void ip_send_check(struct iphdr *ip);
 int __ip_local_out(struct sk_buff *skb);
-int ip_local_out(struct sk_buff *skb);
-int ip_queue_xmit(struct sk_buff *skb, struct flowi *fl);
+int ip_local_out_sk(struct sock *sk, struct sk_buff *skb);
+static inline int ip_local_out(struct sk_buff *skb)
+{
+        return ip_local_out_sk(skb->sk, skb);
+}
+
+int ip_queue_xmit(struct sock *sk, struct sk_buff *skb, struct flowi *fl);
 void ip_init(void);
 int ip_append_data(struct sock *sk, struct flowi4 *fl4,
                    int getfrag(void *from, char *to, int offset, int len,
diff --git a/include/net/ip6_route.h b/include/net/ip6_route.h
index 3c3bb184eb8f..6c4f5eac98e7 100644
--- a/include/net/ip6_route.h
+++ b/include/net/ip6_route.h
@@ -32,6 +32,11 @@ struct route_info {
 #define RT6_LOOKUP_F_SRCPREF_PUBLIC     0x00000010
 #define RT6_LOOKUP_F_SRCPREF_COA        0x00000020
 
+/* We do not (yet ?) support IPv6 jumbograms (RFC 2675)
+ * Unlike IPv4, hdr->seg_len doesn't include the IPv6 header
+ */
+#define IP6_MAX_MTU (0xFFFF + sizeof(struct ipv6hdr))
+
 /*
  * rt6_srcprefs2flags() and rt6_flags2srcprefs() translate
  * between IPV6_ADDR_PREFERENCES socket option values
diff --git a/include/net/ip_tunnels.h b/include/net/ip_tunnels.h
index e77c10405d51..a4daf9eb8562 100644
--- a/include/net/ip_tunnels.h
+++ b/include/net/ip_tunnels.h
@@ -153,7 +153,7 @@ static inline u8 ip_tunnel_ecn_encap(u8 tos, const struct iphdr *iph,
 }
 
 int iptunnel_pull_header(struct sk_buff *skb, int hdr_len, __be16 inner_proto);
-int iptunnel_xmit(struct rtable *rt, struct sk_buff *skb,
+int iptunnel_xmit(struct sock *sk, struct rtable *rt, struct sk_buff *skb,
                   __be32 src, __be32 dst, __u8 proto,
                   __u8 tos, __u8 ttl, __be16 df, bool xnet);
 
diff --git a/include/net/ipv6.h b/include/net/ipv6.h
index 4f541f11ce63..d640925bc454 100644
--- a/include/net/ipv6.h
+++ b/include/net/ipv6.h
@@ -731,7 +731,7 @@ struct dst_entry *ip6_blackhole_route(struct net *net,
  *      skb processing functions
  */
 
-int ip6_output(struct sk_buff *skb);
+int ip6_output(struct sock *sk, struct sk_buff *skb);
 int ip6_forward(struct sk_buff *skb);
 int ip6_input(struct sk_buff *skb);
 int ip6_mc_input(struct sk_buff *skb);
diff --git a/include/net/netfilter/nf_tables_core.h b/include/net/netfilter/nf_tables_core.h
index cf2b7ae2b9d8..a75fc8e27cd6 100644
--- a/include/net/netfilter/nf_tables_core.h
+++ b/include/net/netfilter/nf_tables_core.h
@@ -13,6 +13,16 @@ struct nft_cmp_fast_expr {
         u8                      len;
 };
 
+/* Calculate the mask for the nft_cmp_fast expression. On big endian the
+ * mask needs to include the *upper* bytes when interpreting that data as
+ * something smaller than the full u32, therefore a cpu_to_le32 is done.
+ */
+static inline u32 nft_cmp_fast_mask(unsigned int len)
+{
+        return cpu_to_le32(~0U >> (FIELD_SIZEOF(struct nft_cmp_fast_expr,
+                                                data) * BITS_PER_BYTE - len));
+}
+
 extern const struct nft_expr_ops nft_cmp_fast_ops;
 
 int nft_cmp_module_init(void);
diff --git a/include/net/sctp/sctp.h b/include/net/sctp/sctp.h
index a3353f45ef94..8e4de46c052e 100644
--- a/include/net/sctp/sctp.h
+++ b/include/net/sctp/sctp.h
@@ -101,7 +101,7 @@ void sctp_addr_wq_mgmt(struct net *, struct sctp_sockaddr_entry *, int);
 int sctp_backlog_rcv(struct sock *sk, struct sk_buff *skb);
 int sctp_inet_listen(struct socket *sock, int backlog);
 void sctp_write_space(struct sock *sk);
-void sctp_data_ready(struct sock *sk, int len);
+void sctp_data_ready(struct sock *sk);
 unsigned int sctp_poll(struct file *file, struct socket *sock,
                 poll_table *wait);
 void sctp_sock_rfree(struct sk_buff *skb);
diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h
index 6ee76c804893..d992ca3145fe 100644
--- a/include/net/sctp/structs.h
+++ b/include/net/sctp/structs.h
@@ -1653,6 +1653,17 @@ struct sctp_association {
         /* This is the last advertised value of rwnd over a SACK chunk. */
         __u32 a_rwnd;
 
+        /* Number of bytes by which the rwnd has slopped.  The rwnd is allowed
+         * to slop over a maximum of the association's frag_point.
+         */
+        __u32 rwnd_over;
+
+        /* Keeps treack of rwnd pressure.  This happens when we have
+         * a window, but not recevie buffer (i.e small packets).  This one
+         * is releases slowly (1 PMTU at a time ).
+         */
+        __u32 rwnd_press;
+
         /* This is the sndbuf size in use for the association.
          * This corresponds to the sndbuf size for the association,
          * as specified in the sk->sndbuf.
@@ -1881,7 +1892,8 @@ void sctp_assoc_update(struct sctp_association *old,
 __u32 sctp_association_get_next_tsn(struct sctp_association *);
 
 void sctp_assoc_sync_pmtu(struct sock *, struct sctp_association *);
-void sctp_assoc_rwnd_update(struct sctp_association *, bool);
+void sctp_assoc_rwnd_increase(struct sctp_association *, unsigned int);
+void sctp_assoc_rwnd_decrease(struct sctp_association *, unsigned int);
 void sctp_assoc_set_primary(struct sctp_association *,
                             struct sctp_transport *);
 void sctp_assoc_del_nonprimary_peers(struct sctp_association *,
diff --git a/include/net/sock.h b/include/net/sock.h
index 06a5668f05c9..8338a14e4805 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -418,7 +418,7 @@ struct sock {
         u32                     sk_classid;
         struct cg_proto         *sk_cgrp;
         void                    (*sk_state_change)(struct sock *sk);
-        void                    (*sk_data_ready)(struct sock *sk, int bytes);
+        void                    (*sk_data_ready)(struct sock *sk);
         void                    (*sk_write_space)(struct sock *sk);
         void                    (*sk_error_report)(struct sock *sk);
         int                     (*sk_backlog_rcv)(struct sock *sk,
diff --git a/include/net/xfrm.h b/include/net/xfrm.h
index 32682ae47b3f..116e9c7e19cb 100644
--- a/include/net/xfrm.h
+++ b/include/net/xfrm.h
@@ -333,7 +333,7 @@ struct xfrm_state_afinfo {
                                                 const xfrm_address_t *saddr);
         int                     (*tmpl_sort)(struct xfrm_tmpl **dst, struct xfrm_tmpl **src, int n);
         int                     (*state_sort)(struct xfrm_state **dst, struct xfrm_state **src, int n);
-        int                     (*output)(struct sk_buff *skb);
+        int                     (*output)(struct sock *sk, struct sk_buff *skb);
         int                     (*output_finish)(struct sk_buff *skb);
         int                     (*extract_input)(struct xfrm_state *x,
                                                  struct sk_buff *skb);
@@ -1540,7 +1540,7 @@ static inline int xfrm4_rcv_spi(struct sk_buff *skb, int nexthdr, __be32 spi)
 
 int xfrm4_extract_output(struct xfrm_state *x, struct sk_buff *skb);
 int xfrm4_prepare_output(struct xfrm_state *x, struct sk_buff *skb);
-int xfrm4_output(struct sk_buff *skb);
+int xfrm4_output(struct sock *sk, struct sk_buff *skb);
 int xfrm4_output_finish(struct sk_buff *skb);
 int xfrm4_rcv_cb(struct sk_buff *skb, u8 protocol, int err);
 int xfrm4_protocol_register(struct xfrm4_protocol *handler, unsigned char protocol);
@@ -1565,7 +1565,7 @@ __be32 xfrm6_tunnel_alloc_spi(struct net *net, xfrm_address_t *saddr);
 __be32 xfrm6_tunnel_spi_lookup(struct net *net, const xfrm_address_t *saddr);
 int xfrm6_extract_output(struct xfrm_state *x, struct sk_buff *skb);
 int xfrm6_prepare_output(struct xfrm_state *x, struct sk_buff *skb);
-int xfrm6_output(struct sk_buff *skb);
+int xfrm6_output(struct sock *sk, struct sk_buff *skb);
 int xfrm6_output_finish(struct sk_buff *skb);
 int xfrm6_find_1stfragopt(struct xfrm_state *x, struct sk_buff *skb,
                           u8 **prevhdr);
diff --git a/include/target/iscsi/iscsi_transport.h b/include/target/iscsi/iscsi_transport.h
index 4483fadfa68d..33b487b5da92 100644
--- a/include/target/iscsi/iscsi_transport.h
+++ b/include/target/iscsi/iscsi_transport.h
@@ -21,6 +21,8 @@ struct iscsit_transport {
         int (*iscsit_get_dataout)(struct iscsi_conn *, struct iscsi_cmd *, bool);
         int (*iscsit_queue_data_in)(struct iscsi_conn *, struct iscsi_cmd *);
         int (*iscsit_queue_status)(struct iscsi_conn *, struct iscsi_cmd *);
+        void (*iscsit_aborted_task)(struct iscsi_conn *, struct iscsi_cmd *);
+        enum target_prot_op (*iscsit_get_sup_prot_ops)(struct iscsi_conn *);
 };
 
 static inline void *iscsit_priv_cmd(struct iscsi_cmd *cmd)
diff --git a/include/target/target_core_backend.h b/include/target/target_core_backend.h
index 7020e33e742e..3a1c1eea1fff 100644
--- a/include/target/target_core_backend.h
+++ b/include/target/target_core_backend.h
@@ -73,10 +73,12 @@ sense_reason_t sbc_execute_unmap(struct se_cmd *cmd,
         sense_reason_t (*do_unmap_fn)(struct se_cmd *cmd, void *priv,
                                       sector_t lba, sector_t nolb),
         void *priv);
+void    sbc_dif_generate(struct se_cmd *);
 sense_reason_t  sbc_dif_verify_write(struct se_cmd *, sector_t, unsigned int,
                                      unsigned int, struct scatterlist *, int);
 sense_reason_t  sbc_dif_verify_read(struct se_cmd *, sector_t, unsigned int,
                                     unsigned int, struct scatterlist *, int);
+sense_reason_t  sbc_dif_read_strip(struct se_cmd *);
 
 void    transport_set_vpd_proto_id(struct t10_vpd *, unsigned char *);
 int     transport_set_vpd_assoc(struct t10_vpd *, unsigned char *);
diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h
index 1772fadcff62..9ec9864ecf38 100644
--- a/include/target/target_core_base.h
+++ b/include/target/target_core_base.h
@@ -162,7 +162,7 @@ enum se_cmd_flags_table {
         SCF_SENT_CHECK_CONDITION        = 0x00000800,
         SCF_OVERFLOW_BIT                = 0x00001000,
         SCF_UNDERFLOW_BIT               = 0x00002000,
-        SCF_SENT_DELAYED_TAS            = 0x00004000,
+        SCF_SEND_DELAYED_TAS            = 0x00004000,
         SCF_ALUA_NON_OPTIMIZED          = 0x00008000,
         SCF_PASSTHROUGH_SG_TO_MEM_NOALLOC = 0x00020000,
         SCF_ACK_KREF                    = 0x00040000,
@@ -442,19 +442,18 @@ struct se_tmr_req {
 };
 
 enum target_prot_op {
-        TARGET_PROT_NORMAL = 0,
-        TARGET_PROT_DIN_INSERT,
-        TARGET_PROT_DOUT_INSERT,
-        TARGET_PROT_DIN_STRIP,
-        TARGET_PROT_DOUT_STRIP,
-        TARGET_PROT_DIN_PASS,
-        TARGET_PROT_DOUT_PASS,
+        TARGET_PROT_NORMAL      = 0,
+        TARGET_PROT_DIN_INSERT  = (1 << 0),
+        TARGET_PROT_DOUT_INSERT = (1 << 1),
+        TARGET_PROT_DIN_STRIP   = (1 << 2),
+        TARGET_PROT_DOUT_STRIP  = (1 << 3),
+        TARGET_PROT_DIN_PASS    = (1 << 4),
+        TARGET_PROT_DOUT_PASS   = (1 << 5),
 };
 
-enum target_prot_ho {
-        PROT_SEPERATED,
-        PROT_INTERLEAVED,
-};
+#define TARGET_PROT_ALL TARGET_PROT_DIN_INSERT | TARGET_PROT_DOUT_INSERT | \
+                        TARGET_PROT_DIN_STRIP | TARGET_PROT_DOUT_STRIP | \
+                        TARGET_PROT_DIN_PASS | TARGET_PROT_DOUT_PASS
 
 enum target_prot_type {
         TARGET_DIF_TYPE0_PROT,
@@ -463,6 +462,12 @@ enum target_prot_type {
         TARGET_DIF_TYPE3_PROT,
 };
 
+enum target_core_dif_check {
+        TARGET_DIF_CHECK_GUARD  = 0x1 << 0,
+        TARGET_DIF_CHECK_APPTAG = 0x1 << 1,
+        TARGET_DIF_CHECK_REFTAG = 0x1 << 2,
+};
+
 struct se_dif_v1_tuple {
         __be16                  guard_tag;
         __be16                  app_tag;
@@ -556,13 +561,14 @@ struct se_cmd {
         /* DIF related members */
         enum target_prot_op     prot_op;
         enum target_prot_type   prot_type;
+        u8                      prot_checks;
         u32                     prot_length;
         u32                     reftag_seed;
         struct scatterlist      *t_prot_sg;
         unsigned int            t_prot_nents;
-        enum target_prot_ho     prot_handover;
         sense_reason_t          pi_err;
         sector_t                bad_sector;
+        bool                    prot_pto;
 };
 
 struct se_ua {
@@ -603,6 +609,7 @@ struct se_node_acl {
 struct se_session {
         unsigned                sess_tearing_down:1;
         u64                     sess_bin_isid;
+        enum target_prot_op     sup_prot_ops;
         struct se_node_acl      *se_node_acl;
         struct se_portal_group *se_tpg;
         void                    *fabric_sess_ptr;
diff --git a/include/target/target_core_fabric.h b/include/target/target_core_fabric.h
index 0218d689b3d7..22a4e98eec80 100644
--- a/include/target/target_core_fabric.h
+++ b/include/target/target_core_fabric.h
@@ -62,6 +62,7 @@ struct target_core_fabric_ops {
         int (*queue_data_in)(struct se_cmd *);
         int (*queue_status)(struct se_cmd *);
         void (*queue_tm_rsp)(struct se_cmd *);
+        void (*aborted_task)(struct se_cmd *);
         /*
          * fabric module calls for target_core_fabric_configfs.c
          */
@@ -83,10 +84,11 @@ struct target_core_fabric_ops {
         void (*fabric_drop_nodeacl)(struct se_node_acl *);
 };
 
-struct se_session *transport_init_session(void);
+struct se_session *transport_init_session(enum target_prot_op);
 int transport_alloc_session_tags(struct se_session *, unsigned int,
                 unsigned int);
-struct se_session *transport_init_session_tags(unsigned int, unsigned int);
+struct se_session *transport_init_session_tags(unsigned int, unsigned int,
+                enum target_prot_op);
 void    __transport_register_session(struct se_portal_group *,
                 struct se_node_acl *, struct se_session *, void *);
 void    transport_register_session(struct se_portal_group *,
diff --git a/include/trace/events/syscalls.h b/include/trace/events/syscalls.h
index 5a4c04a75b3d..14e49c798135 100644
--- a/include/trace/events/syscalls.h
+++ b/include/trace/events/syscalls.h
@@ -13,9 +13,6 @@
 
 #ifdef CONFIG_HAVE_SYSCALL_TRACEPOINTS
 
-extern void syscall_regfunc(void);
-extern void syscall_unregfunc(void);
-
 TRACE_EVENT_FN(sys_enter,
 
         TP_PROTO(struct pt_regs *regs, long id),
diff --git a/include/trace/ftrace.h b/include/trace/ftrace.h
index 8765126b328c..0a1a4f7caf09 100644
--- a/include/trace/ftrace.h
+++ b/include/trace/ftrace.h
@@ -470,10 +470,13 @@ static inline notrace int ftrace_get_offsets_##call(			\
  * };
  *
  * static struct ftrace_event_call event_<call> = {
- *      .name                   = "<call>",
  *      .class                  = event_class_<template>,
+ *      {
+ *              .tp                     = &__tracepoint_<call>,
+ *      },
  *      .event                  = &ftrace_event_type_<call>,
  *      .print_fmt              = print_fmt_<call>,
+ *      .flags                  = TRACE_EVENT_FL_TRACEPOINT,
  * };
  * // its only safe to use pointers when doing linker tricks to
  * // create an array.
@@ -605,10 +608,13 @@ static struct ftrace_event_class __used __refdata event_class_##call = { \
 #define DEFINE_EVENT(template, call, proto, args)                       \
                                                                         \
 static struct ftrace_event_call __used event_##call = {                 \
-        .name                   = #call,                                \
         .class                  = &event_class_##template,              \
+        {                                                               \
+                .tp                     = &__tracepoint_##call,         \
+        },                                                              \
         .event.funcs            = &ftrace_event_type_funcs_##template,  \
         .print_fmt              = print_fmt_##template,                 \
+        .flags                  = TRACE_EVENT_FL_TRACEPOINT,            \
 };                                                                      \
 static struct ftrace_event_call __used                                  \
 __attribute__((section("_ftrace_events"))) *__event_##call = &event_##call
@@ -619,10 +625,13 @@ __attribute__((section("_ftrace_events"))) *__event_##call = &event_##call
 static const char print_fmt_##call[] = print;                           \
                                                                         \
 static struct ftrace_event_call __used event_##call = {                 \
-        .name                   = #call,                                \
         .class                  = &event_class_##template,              \
+        {                                                               \
+                .tp                     = &__tracepoint_##call,         \
+        },                                                              \
         .event.funcs            = &ftrace_event_type_funcs_##call,      \
         .print_fmt              = print_fmt_##call,                     \
+        .flags                  = TRACE_EVENT_FL_TRACEPOINT,            \
 };                                                                      \
 static struct ftrace_event_call __used                                  \
 __attribute__((section("_ftrace_events"))) *__event_##call = &event_##call
diff --git a/include/uapi/linux/audit.h b/include/uapi/linux/audit.h
index 2d48fe1274ca..11917f747cb4 100644
--- a/include/uapi/linux/audit.h
+++ b/include/uapi/linux/audit.h
@@ -70,7 +70,6 @@
 #define AUDIT_TTY_SET           1017    /* Set TTY auditing status */
 #define AUDIT_SET_FEATURE       1018    /* Turn an audit feature on or off */
 #define AUDIT_GET_FEATURE       1019    /* Get which features are enabled */
-#define AUDIT_FEATURE_CHANGE    1020    /* audit log listing feature changes */
 
 #define AUDIT_FIRST_USER_MSG    1100    /* Userspace messages mostly uninteresting to kernel */
 #define AUDIT_USER_AVC          1107    /* We filter this differently */
@@ -109,6 +108,8 @@
 #define AUDIT_NETFILTER_PKT     1324    /* Packets traversing netfilter chains */
 #define AUDIT_NETFILTER_CFG     1325    /* Netfilter chain modifications */
 #define AUDIT_SECCOMP           1326    /* Secure Computing event */
+#define AUDIT_PROCTITLE         1327    /* Proctitle emit event */
+#define AUDIT_FEATURE_CHANGE    1328    /* audit log listing feature changes */
 
 #define AUDIT_AVC               1400    /* SE Linux avc denial or grant */
 #define AUDIT_SELINUX_ERR       1401    /* Internal SE Linux Errors */
diff --git a/include/uapi/linux/capability.h b/include/uapi/linux/capability.h
index ba478fa3012e..154dd6d3c8fe 100644
--- a/include/uapi/linux/capability.h
+++ b/include/uapi/linux/capability.h
@@ -308,8 +308,12 @@ struct vfs_cap_data {
 
 #define CAP_LEASE            28
 
+/* Allow writing the audit log via unicast netlink socket */
+
 #define CAP_AUDIT_WRITE      29
 
+/* Allow configuration of audit via unicast netlink socket */
+
 #define CAP_AUDIT_CONTROL    30
 
 #define CAP_SETFCAP          31
diff --git a/include/uapi/linux/nvme.h b/include/uapi/linux/nvme.h
index e5ab62201119..096fe1c6f83d 100644
--- a/include/uapi/linux/nvme.h
+++ b/include/uapi/linux/nvme.h
@@ -434,6 +434,7 @@ enum {
         NVME_SC_REFTAG_CHECK            = 0x284,
         NVME_SC_COMPARE_FAILED          = 0x285,
         NVME_SC_ACCESS_DENIED           = 0x286,
+        NVME_SC_DNR                     = 0x4000,
 };
 
 struct nvme_completion {
diff --git a/include/uapi/linux/v4l2-common.h b/include/uapi/linux/v4l2-common.h
index 270db8914c01..9bf508ad0957 100644
--- a/include/uapi/linux/v4l2-common.h
+++ b/include/uapi/linux/v4l2-common.h
@@ -29,6 +29,8 @@
 #ifndef __V4L2_COMMON__
 #define __V4L2_COMMON__
 
+#include <linux/types.h>
+
 /*
  *
  * Selection interface definitions
diff --git a/init/Kconfig b/init/Kconfig
index 427ba60d638f..765018c24cf9 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -292,9 +292,12 @@ config AUDIT
           logging of avc messages output).  Does not do system-call
           auditing without CONFIG_AUDITSYSCALL.
 
+config HAVE_ARCH_AUDITSYSCALL
+        bool
+
 config AUDITSYSCALL
         bool "Enable system-call auditing support"
-        depends on AUDIT && (X86 || PARISC || PPC || S390 || IA64 || UML || SPARC64 || SUPERH || (ARM && AEABI && !OABI_COMPAT) || ALPHA)
+        depends on AUDIT && HAVE_ARCH_AUDITSYSCALL
         default y if SECURITY_SELINUX
         help
           Enable low-overhead system-call auditing infrastructure that
diff --git a/kernel/audit.c b/kernel/audit.c
index 95a20f3f52f1..7c2893602d06 100644
--- a/kernel/audit.c
+++ b/kernel/audit.c
@@ -182,7 +182,7 @@ struct audit_buffer {
 
 struct audit_reply {
         __u32 portid;
-        struct net *net;        
+        struct net *net;
         struct sk_buff *skb;
 };
 
@@ -396,7 +396,7 @@ static void audit_printk_skb(struct sk_buff *skb)
                 if (printk_ratelimit())
                         pr_notice("type=%d %s\n", nlh->nlmsg_type, data);
                 else
-                        audit_log_lost("printk limit exceeded\n");
+                        audit_log_lost("printk limit exceeded");
         }
 
         audit_hold_skb(skb);
@@ -412,7 +412,7 @@ static void kauditd_send_skb(struct sk_buff *skb)
                 BUG_ON(err != -ECONNREFUSED); /* Shouldn't happen */
                 if (audit_pid) {
                         pr_err("*NO* daemon at audit_pid=%d\n", audit_pid);
-                        audit_log_lost("auditd disappeared\n");
+                        audit_log_lost("auditd disappeared");
                         audit_pid = 0;
                         audit_sock = NULL;
                 }
@@ -607,7 +607,7 @@ static int audit_netlink_ok(struct sk_buff *skb, u16 msg_type)
 {
         int err = 0;
 
-        /* Only support the initial namespaces for now. */
+        /* Only support initial user namespace for now. */
         /*
          * We return ECONNREFUSED because it tricks userspace into thinking
          * that audit was not configured into the kernel.  Lots of users
@@ -618,8 +618,7 @@ static int audit_netlink_ok(struct sk_buff *skb, u16 msg_type)
          * userspace will reject all logins.  This should be removed when we
          * support non init namespaces!!
          */
-        if ((current_user_ns() != &init_user_ns) ||
-            (task_active_pid_ns(current) != &init_pid_ns))
+        if (current_user_ns() != &init_user_ns)
                 return -ECONNREFUSED;
 
         switch (msg_type) {
@@ -639,6 +638,11 @@ static int audit_netlink_ok(struct sk_buff *skb, u16 msg_type)
         case AUDIT_TTY_SET:
         case AUDIT_TRIM:
         case AUDIT_MAKE_EQUIV:
+                /* Only support auditd and auditctl in initial pid namespace
+                 * for now. */
+                if ((task_active_pid_ns(current) != &init_pid_ns))
+                        return -EPERM;
+
                 if (!capable(CAP_AUDIT_CONTROL))
                         err = -EPERM;
                 break;
@@ -659,6 +663,7 @@ static int audit_log_common_recv_msg(struct audit_buffer **ab, u16 msg_type)
 {
         int rc = 0;
         uid_t uid = from_kuid(&init_user_ns, current_uid());
+        pid_t pid = task_tgid_nr(current);
 
         if (!audit_enabled && msg_type != AUDIT_USER_AVC) {
                 *ab = NULL;
@@ -668,7 +673,7 @@ static int audit_log_common_recv_msg(struct audit_buffer **ab, u16 msg_type)
         *ab = audit_log_start(NULL, GFP_KERNEL, msg_type);
         if (unlikely(!*ab))
                 return rc;
-        audit_log_format(*ab, "pid=%d uid=%u", task_tgid_vnr(current), uid);
+        audit_log_format(*ab, "pid=%d uid=%u", pid, uid);
         audit_log_session_info(*ab);
         audit_log_task_context(*ab);
 
@@ -1097,7 +1102,7 @@ static void __net_exit audit_net_exit(struct net *net)
                 audit_sock = NULL;
         }
 
-        rcu_assign_pointer(aunet->nlsk, NULL);
+        RCU_INIT_POINTER(aunet->nlsk, NULL);
         synchronize_net();
         netlink_kernel_release(sock);
 }
@@ -1829,11 +1834,11 @@ void audit_log_task_info(struct audit_buffer *ab, struct task_struct *tsk)
         spin_unlock_irq(&tsk->sighand->siglock);
 
         audit_log_format(ab,
-                         " ppid=%ld pid=%d auid=%u uid=%u gid=%u"
+                         " ppid=%d pid=%d auid=%u uid=%u gid=%u"
                          " euid=%u suid=%u fsuid=%u"
                          " egid=%u sgid=%u fsgid=%u tty=%s ses=%u",
-                         sys_getppid(),
-                         tsk->pid,
+                         task_ppid_nr(tsk),
+                         task_pid_nr(tsk),
                          from_kuid(&init_user_ns, audit_get_loginuid(tsk)),
                          from_kuid(&init_user_ns, cred->uid),
                          from_kgid(&init_user_ns, cred->gid),
diff --git a/kernel/audit.h b/kernel/audit.h
index 8df132214606..7bb65730c890 100644
--- a/kernel/audit.h
+++ b/kernel/audit.h
@@ -106,6 +106,11 @@ struct audit_names {
         bool                    should_free;
 };
 
+struct audit_proctitle {
+        int     len;    /* length of the cmdline field. */
+        char    *value; /* the cmdline field */
+};
+
 /* The per-task audit context. */
 struct audit_context {
         int                 dummy;      /* must be the first element */
@@ -202,6 +207,7 @@ struct audit_context {
                 } execve;
         };
         int fds[2];
+        struct audit_proctitle proctitle;
 
 #if AUDIT_DEBUG
         int                 put_count;
diff --git a/kernel/auditfilter.c b/kernel/auditfilter.c
index 92062fd6cc8c..8e9bc9c3dbb7 100644
--- a/kernel/auditfilter.c
+++ b/kernel/auditfilter.c
@@ -19,6 +19,8 @@
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/kernel.h>
 #include <linux/audit.h>
 #include <linux/kthread.h>
@@ -226,7 +228,7 @@ static int audit_match_signal(struct audit_entry *entry)
 #endif
 
 /* Common user-space to kernel rule translation. */
-static inline struct audit_entry *audit_to_entry_common(struct audit_rule *rule)
+static inline struct audit_entry *audit_to_entry_common(struct audit_rule_data *rule)
 {
         unsigned listnr;
         struct audit_entry *entry;
@@ -249,7 +251,7 @@ static inline struct audit_entry *audit_to_entry_common(struct audit_rule *rule)
                 ;
         }
         if (unlikely(rule->action == AUDIT_POSSIBLE)) {
-                printk(KERN_ERR "AUDIT_POSSIBLE is deprecated\n");
+                pr_err("AUDIT_POSSIBLE is deprecated\n");
                 goto exit_err;
         }
         if (rule->action != AUDIT_NEVER && rule->action != AUDIT_ALWAYS)
@@ -403,7 +405,7 @@ static struct audit_entry *audit_data_to_entry(struct audit_rule_data *data,
         int i;
         char *str;
 
-        entry = audit_to_entry_common((struct audit_rule *)data);
+        entry = audit_to_entry_common(data);
         if (IS_ERR(entry))
                 goto exit_nofree;
 
@@ -431,6 +433,19 @@ static struct audit_entry *audit_data_to_entry(struct audit_rule_data *data,
                         f->val = 0;
                 }
 
+                if ((f->type == AUDIT_PID) || (f->type == AUDIT_PPID)) {
+                        struct pid *pid;
+                        rcu_read_lock();
+                        pid = find_vpid(f->val);
+                        if (!pid) {
+                                rcu_read_unlock();
+                                err = -ESRCH;
+                                goto exit_free;
+                        }
+                        f->val = pid_nr(pid);
+                        rcu_read_unlock();
+                }
+
                 err = audit_field_valid(entry, f);
                 if (err)
                         goto exit_free;
@@ -479,8 +494,8 @@ static struct audit_entry *audit_data_to_entry(struct audit_rule_data *data,
                         /* Keep currently invalid fields around in case they
                          * become valid after a policy reload. */
                         if (err == -EINVAL) {
-                                printk(KERN_WARNING "audit rule for LSM "
-                                       "\'%s\' is invalid\n",  str);
+                                pr_warn("audit rule for LSM \'%s\' is invalid\n",
+                                        str);
                                 err = 0;
                         }
                         if (err) {
@@ -709,8 +724,8 @@ static inline int audit_dupe_lsm_field(struct audit_field *df,
         /* Keep currently invalid fields around in case they
          * become valid after a policy reload. */
         if (ret == -EINVAL) {
-                printk(KERN_WARNING "audit rule for LSM \'%s\' is "
-                       "invalid\n", df->lsm_str);
+                pr_warn("audit rule for LSM \'%s\' is invalid\n",
+                        df->lsm_str);
                 ret = 0;
         }
 
@@ -1240,12 +1255,14 @@ static int audit_filter_user_rules(struct audit_krule *rule, int type,
 
         for (i = 0; i < rule->field_count; i++) {
                 struct audit_field *f = &rule->fields[i];
+                pid_t pid;
                 int result = 0;
                 u32 sid;
 
                 switch (f->type) {
                 case AUDIT_PID:
-                        result = audit_comparator(task_pid_vnr(current), f->op, f->val);
+                        pid = task_pid_nr(current);
+                        result = audit_comparator(pid, f->op, f->val);
                         break;
                 case AUDIT_UID:
                         result = audit_uid_comparator(current_uid(), f->op, f->uid);
diff --git a/kernel/auditsc.c b/kernel/auditsc.c
index 7aef2f4b6c64..f251a5e8d17a 100644
--- a/kernel/auditsc.c
+++ b/kernel/auditsc.c
@@ -42,6 +42,8 @@
  * and <dustin.kirkland@us.ibm.com> for LSPP certification compliance.
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/init.h>
 #include <asm/types.h>
 #include <linux/atomic.h>
@@ -68,6 +70,7 @@
 #include <linux/capability.h>
 #include <linux/fs_struct.h>
 #include <linux/compat.h>
+#include <linux/ctype.h>
 
 #include "audit.h"
 
@@ -79,6 +82,9 @@
 /* no execve audit message should be longer than this (userspace limits) */
 #define MAX_EXECVE_AUDIT_LEN 7500
 
+/* max length to print of cmdline/proctitle value during audit */
+#define MAX_PROCTITLE_AUDIT_LEN 128
+
 /* number of audit rules */
 int audit_n_rules;
 
@@ -451,15 +457,17 @@ static int audit_filter_rules(struct task_struct *tsk,
                 struct audit_field *f = &rule->fields[i];
                 struct audit_names *n;
                 int result = 0;
+                pid_t pid;
 
                 switch (f->type) {
                 case AUDIT_PID:
-                        result = audit_comparator(tsk->pid, f->op, f->val);
+                        pid = task_pid_nr(tsk);
+                        result = audit_comparator(pid, f->op, f->val);
                         break;
                 case AUDIT_PPID:
                         if (ctx) {
                                 if (!ctx->ppid)
-                                        ctx->ppid = sys_getppid();
+                                        ctx->ppid = task_ppid_nr(tsk);
                                 result = audit_comparator(ctx->ppid, f->op, f->val);
                         }
                         break;
@@ -805,7 +813,8 @@ void audit_filter_inodes(struct task_struct *tsk, struct audit_context *ctx)
         rcu_read_unlock();
 }
 
-static inline struct audit_context *audit_get_context(struct task_struct *tsk,
+/* Transfer the audit context pointer to the caller, clearing it in the tsk's struct */
+static inline struct audit_context *audit_take_context(struct task_struct *tsk,
                                                       int return_valid,
                                                       long return_code)
 {
@@ -842,6 +851,13 @@ static inline struct audit_context *audit_get_context(struct task_struct *tsk,
         return context;
 }
 
+static inline void audit_proctitle_free(struct audit_context *context)
+{
+        kfree(context->proctitle.value);
+        context->proctitle.value = NULL;
+        context->proctitle.len = 0;
+}
+
 static inline void audit_free_names(struct audit_context *context)
 {
         struct audit_names *n, *next;
@@ -850,16 +866,15 @@ static inline void audit_free_names(struct audit_context *context)
         if (context->put_count + context->ino_count != context->name_count) {
                 int i = 0;
 
-                printk(KERN_ERR "%s:%d(:%d): major=%d in_syscall=%d"
-                       " name_count=%d put_count=%d"
-                       " ino_count=%d [NOT freeing]\n",
-                       __FILE__, __LINE__,
+                pr_err("%s:%d(:%d): major=%d in_syscall=%d"
+                       " name_count=%d put_count=%d ino_count=%d"
+                       " [NOT freeing]\n", __FILE__, __LINE__,
                        context->serial, context->major, context->in_syscall,
                        context->name_count, context->put_count,
                        context->ino_count);
                 list_for_each_entry(n, &context->names_list, list) {
-                        printk(KERN_ERR "names[%d] = %p = %s\n", i++,
-                               n->name, n->name->name ?: "(null)");
+                        pr_err("names[%d] = %p = %s\n", i++, n->name,
+                               n->name->name ?: "(null)");
                 }
                 dump_stack();
                 return;
@@ -955,6 +970,7 @@ static inline void audit_free_context(struct audit_context *context)
         audit_free_aux(context);
         kfree(context->filterkey);
         kfree(context->sockaddr);
+        audit_proctitle_free(context);
         kfree(context);
 }
 
@@ -1157,7 +1173,7 @@ static void audit_log_execve_info(struct audit_context *context,
          */
         buf = kmalloc(MAX_EXECVE_AUDIT_LEN + 1, GFP_KERNEL);
         if (!buf) {
-                audit_panic("out of memory for argv string\n");
+                audit_panic("out of memory for argv string");
                 return;
         }
 
@@ -1271,6 +1287,59 @@ static void show_special(struct audit_context *context, int *call_panic)
         audit_log_end(ab);
 }
 
+static inline int audit_proctitle_rtrim(char *proctitle, int len)
+{
+        char *end = proctitle + len - 1;
+        while (end > proctitle && !isprint(*end))
+                end--;
+
+        /* catch the case where proctitle is only 1 non-print character */
+        len = end - proctitle + 1;
+        len -= isprint(proctitle[len-1]) == 0;
+        return len;
+}
+
+static void audit_log_proctitle(struct task_struct *tsk,
+                         struct audit_context *context)
+{
+        int res;
+        char *buf;
+        char *msg = "(null)";
+        int len = strlen(msg);
+        struct audit_buffer *ab;
+
+        ab = audit_log_start(context, GFP_KERNEL, AUDIT_PROCTITLE);
+        if (!ab)
+                return; /* audit_panic or being filtered */
+
+        audit_log_format(ab, "proctitle=");
+
+        /* Not  cached */
+        if (!context->proctitle.value) {
+                buf = kmalloc(MAX_PROCTITLE_AUDIT_LEN, GFP_KERNEL);
+                if (!buf)
+                        goto out;
+                /* Historically called this from procfs naming */
+                res = get_cmdline(tsk, buf, MAX_PROCTITLE_AUDIT_LEN);
+                if (res == 0) {
+                        kfree(buf);
+                        goto out;
+                }
+                res = audit_proctitle_rtrim(buf, res);
+                if (res == 0) {
+                        kfree(buf);
+                        goto out;
+                }
+                context->proctitle.value = buf;
+                context->proctitle.len = res;
+        }
+        msg = context->proctitle.value;
+        len = context->proctitle.len;
+out:
+        audit_log_n_untrustedstring(ab, msg, len);
+        audit_log_end(ab);
+}
+
 static void audit_log_exit(struct audit_context *context, struct task_struct *tsk)
 {
         int i, call_panic = 0;
@@ -1388,6 +1457,8 @@ static void audit_log_exit(struct audit_context *context, struct task_struct *ts
                 audit_log_name(context, n, NULL, i++, &call_panic);
         }
 
+        audit_log_proctitle(tsk, context);
+
         /* Send end of event record to help user space know we are finished */
         ab = audit_log_start(context, GFP_KERNEL, AUDIT_EOE);
         if (ab)
@@ -1406,7 +1477,7 @@ void __audit_free(struct task_struct *tsk)
 {
         struct audit_context *context;
 
-        context = audit_get_context(tsk, 0, 0);
+        context = audit_take_context(tsk, 0, 0);
         if (!context)
                 return;
 
@@ -1500,7 +1571,7 @@ void __audit_syscall_exit(int success, long return_code)
         else
                 success = AUDITSC_FAILURE;
 
-        context = audit_get_context(tsk, success, return_code);
+        context = audit_take_context(tsk, success, return_code);
         if (!context)
                 return;
 
@@ -1550,7 +1621,7 @@ static inline void handle_one(const struct inode *inode)
         if (likely(put_tree_ref(context, chunk)))
                 return;
         if (unlikely(!grow_tree_refs(context))) {
-                printk(KERN_WARNING "out of memory, audit has lost a tree reference\n");
+                pr_warn("out of memory, audit has lost a tree reference\n");
                 audit_set_auditable(context);
                 audit_put_chunk(chunk);
                 unroll_tree_refs(context, p, count);
@@ -1609,8 +1680,7 @@ retry:
                         goto retry;
                 }
                 /* too bad */
-                printk(KERN_WARNING
-                        "out of memory, audit has lost a tree reference\n");
+                pr_warn("out of memory, audit has lost a tree reference\n");
                 unroll_tree_refs(context, p, count);
                 audit_set_auditable(context);
                 return;
@@ -1682,7 +1752,7 @@ void __audit_getname(struct filename *name)
 
         if (!context->in_syscall) {
 #if AUDIT_DEBUG == 2
-                printk(KERN_ERR "%s:%d(:%d): ignoring getname(%p)\n",
+                pr_err("%s:%d(:%d): ignoring getname(%p)\n",
                        __FILE__, __LINE__, context->serial, name);
                 dump_stack();
 #endif
@@ -1721,15 +1791,15 @@ void audit_putname(struct filename *name)
         BUG_ON(!context);
         if (!name->aname || !context->in_syscall) {
 #if AUDIT_DEBUG == 2
-                printk(KERN_ERR "%s:%d(:%d): final_putname(%p)\n",
+                pr_err("%s:%d(:%d): final_putname(%p)\n",
                        __FILE__, __LINE__, context->serial, name);
                 if (context->name_count) {
                         struct audit_names *n;
                         int i = 0;
 
                         list_for_each_entry(n, &context->names_list, list)
-                                printk(KERN_ERR "name[%d] = %p = %s\n", i++,
-                                       n->name, n->name->name ?: "(null)");
+                                pr_err("name[%d] = %p = %s\n", i++, n->name,
+                                       n->name->name ?: "(null)");
                         }
 #endif
                 final_putname(name);
@@ -1738,9 +1808,8 @@ void audit_putname(struct filename *name)
         else {
                 ++context->put_count;
                 if (context->put_count > context->name_count) {
-                        printk(KERN_ERR "%s:%d(:%d): major=%d"
-                               " in_syscall=%d putname(%p) name_count=%d"
-                               " put_count=%d\n",
+                        pr_err("%s:%d(:%d): major=%d in_syscall=%d putname(%p)"
+                               " name_count=%d put_count=%d\n",
                                __FILE__, __LINE__,
                                context->serial, context->major,
                                context->in_syscall, name->name,
@@ -1981,12 +2050,10 @@ static void audit_log_set_loginuid(kuid_t koldloginuid, kuid_t kloginuid,
         ab = audit_log_start(NULL, GFP_KERNEL, AUDIT_LOGIN);
         if (!ab)
                 return;
-        audit_log_format(ab, "pid=%d uid=%u"
-                         " old-auid=%u new-auid=%u old-ses=%u new-ses=%u"
-                         " res=%d",
-                         current->pid, uid,
-                         oldloginuid, loginuid, oldsessionid, sessionid,
-                         !rc);
+        audit_log_format(ab, "pid=%d uid=%u", task_pid_nr(current), uid);
+        audit_log_task_context(ab);
+        audit_log_format(ab, " old-auid=%u auid=%u old-ses=%u ses=%u res=%d",
+                         oldloginuid, loginuid, oldsessionid, sessionid, !rc);
         audit_log_end(ab);
 }
 
@@ -2208,7 +2275,7 @@ void __audit_ptrace(struct task_struct *t)
 {
         struct audit_context *context = current->audit_context;
 
-        context->target_pid = t->pid;
+        context->target_pid = task_pid_nr(t);
         context->target_auid = audit_get_loginuid(t);
         context->target_uid = task_uid(t);
         context->target_sessionid = audit_get_sessionid(t);
@@ -2233,7 +2300,7 @@ int __audit_signal_info(int sig, struct task_struct *t)
 
         if (audit_pid && t->tgid == audit_pid) {
                 if (sig == SIGTERM || sig == SIGHUP || sig == SIGUSR1 || sig == SIGUSR2) {
-                        audit_sig_pid = tsk->pid;
+                        audit_sig_pid = task_pid_nr(tsk);
                         if (uid_valid(tsk->loginuid))
                                 audit_sig_uid = tsk->loginuid;
                         else
@@ -2247,7 +2314,7 @@ int __audit_signal_info(int sig, struct task_struct *t)
         /* optimize the common case by putting first signal recipient directly
          * in audit_context */
         if (!ctx->target_pid) {
-                ctx->target_pid = t->tgid;
+                ctx->target_pid = task_tgid_nr(t);
                 ctx->target_auid = audit_get_loginuid(t);
                 ctx->target_uid = t_uid;
                 ctx->target_sessionid = audit_get_sessionid(t);
@@ -2268,7 +2335,7 @@ int __audit_signal_info(int sig, struct task_struct *t)
         }
         BUG_ON(axp->pid_count >= AUDIT_AUX_PIDS);
 
-        axp->target_pid[axp->pid_count] = t->tgid;
+        axp->target_pid[axp->pid_count] = task_tgid_nr(t);
         axp->target_auid[axp->pid_count] = audit_get_loginuid(t);
         axp->target_uid[axp->pid_count] = t_uid;
         axp->target_sessionid[axp->pid_count] = audit_get_sessionid(t);
@@ -2368,7 +2435,7 @@ static void audit_log_task(struct audit_buffer *ab)
                          from_kgid(&init_user_ns, gid),
                          sessionid);
         audit_log_task_context(ab);
-        audit_log_format(ab, " pid=%d comm=", current->pid);
+        audit_log_format(ab, " pid=%d comm=", task_pid_nr(current));
         audit_log_untrustedstring(ab, current->comm);
         if (mm) {
                 down_read(&mm->mmap_sem);
diff --git a/kernel/futex.c b/kernel/futex.c
index 6801b3751a95..5f589279e462 100644
--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -70,7 +70,10 @@
 #include "locking/rtmutex_common.h"
 
 /*
- * Basic futex operation and ordering guarantees:
+ * READ this before attempting to hack on futexes!
+ *
+ * Basic futex operation and ordering guarantees
+ * =============================================
  *
  * The waiter reads the futex value in user space and calls
  * futex_wait(). This function computes the hash bucket and acquires
@@ -119,7 +122,7 @@
  * sys_futex(WAIT, futex, val);
  *   futex_wait(futex, val);
  *
- *   waiters++;
+ *   waiters++; (a)
  *   mb(); (A) <-- paired with -.
  *                              |
  *   lock(hash_bucket(futex));  |
@@ -135,14 +138,14 @@
  *     unlock(hash_bucket(futex));
  *     schedule();                         if (waiters)
  *                                           lock(hash_bucket(futex));
- *                                           wake_waiters(futex);
- *                                           unlock(hash_bucket(futex));
+ *   else                                    wake_waiters(futex);
+ *     waiters--; (b)                        unlock(hash_bucket(futex));
  *
- * Where (A) orders the waiters increment and the futex value read -- this
- * is guaranteed by the head counter in the hb spinlock; and where (B)
- * orders the write to futex and the waiters read -- this is done by the
- * barriers in get_futex_key_refs(), through either ihold or atomic_inc,
- * depending on the futex type.
+ * Where (A) orders the waiters increment and the futex value read through
+ * atomic operations (see hb_waiters_inc) and where (B) orders the write
+ * to futex and the waiters read -- this is done by the barriers in
+ * get_futex_key_refs(), through either ihold or atomic_inc, depending on the
+ * futex type.
  *
  * This yields the following case (where X:=waiters, Y:=futex):
  *
@@ -155,6 +158,17 @@
  * Which guarantees that x==0 && y==0 is impossible; which translates back into
  * the guarantee that we cannot both miss the futex variable change and the
  * enqueue.
+ *
+ * Note that a new waiter is accounted for in (a) even when it is possible that
+ * the wait call can return error, in which case we backtrack from it in (b).
+ * Refer to the comment in queue_lock().
+ *
+ * Similarly, in order to account for waiters being requeued on another
+ * address we always increment the waiters for the destination bucket before
+ * acquiring the lock. It then decrements them again  after releasing it -
+ * the code that actually moves the futex(es) between hash buckets (requeue_futex)
+ * will do the additional required waiter count housekeeping. This is done for
+ * double_lock_hb() and double_unlock_hb(), respectively.
  */
 
 #ifndef CONFIG_HAVE_FUTEX_CMPXCHG
diff --git a/kernel/relay.c b/kernel/relay.c
index 52d6a6f56261..5a56d3c8dc03 100644
--- a/kernel/relay.c
+++ b/kernel/relay.c
@@ -1195,8 +1195,6 @@ static void relay_pipe_buf_release(struct pipe_inode_info *pipe,
 
 static const struct pipe_buf_operations relay_pipe_buf_ops = {
         .can_merge = 0,
-        .map = generic_pipe_buf_map,
-        .unmap = generic_pipe_buf_unmap,
         .confirm = generic_pipe_buf_confirm,
         .release = relay_pipe_buf_release,
         .steal = generic_pipe_buf_steal,
@@ -1253,7 +1251,7 @@ static ssize_t subbuf_splice_actor(struct file *in,
         subbuf_pages = rbuf->chan->alloc_size >> PAGE_SHIFT;
         pidx = (read_start / PAGE_SIZE) % subbuf_pages;
         poff = read_start & ~PAGE_MASK;
-        nr_pages = min_t(unsigned int, subbuf_pages, pipe->buffers);
+        nr_pages = min_t(unsigned int, subbuf_pages, spd.nr_pages_max);
 
         for (total_len = 0; spd.nr_pages < nr_pages; spd.nr_pages++) {
                 unsigned int this_len, this_end, private;
diff --git a/kernel/seccomp.c b/kernel/seccomp.c
index fd609bd9d6dd..590c37925084 100644
--- a/kernel/seccomp.c
+++ b/kernel/seccomp.c
@@ -69,18 +69,17 @@ static void populate_seccomp_data(struct seccomp_data *sd)
 {
         struct task_struct *task = current;
         struct pt_regs *regs = task_pt_regs(task);
+        unsigned long args[6];
 
         sd->nr = syscall_get_nr(task, regs);
-        sd->arch = syscall_get_arch(task, regs);
-
-        /* Unroll syscall_get_args to help gcc on arm. */
-        syscall_get_arguments(task, regs, 0, 1, (unsigned long *) &sd->args[0]);
-        syscall_get_arguments(task, regs, 1, 1, (unsigned long *) &sd->args[1]);
-        syscall_get_arguments(task, regs, 2, 1, (unsigned long *) &sd->args[2]);
-        syscall_get_arguments(task, regs, 3, 1, (unsigned long *) &sd->args[3]);
-        syscall_get_arguments(task, regs, 4, 1, (unsigned long *) &sd->args[4]);
-        syscall_get_arguments(task, regs, 5, 1, (unsigned long *) &sd->args[5]);
-
+        sd->arch = syscall_get_arch();
+        syscall_get_arguments(task, regs, 0, 6, args);
+        sd->args[0] = args[0];
+        sd->args[1] = args[1];
+        sd->args[2] = args[2];
+        sd->args[3] = args[3];
+        sd->args[4] = args[4];
+        sd->args[5] = args[5];
         sd->instruction_pointer = KSTK_EIP(task);
 }
 
@@ -348,7 +347,7 @@ static void seccomp_send_sigsys(int syscall, int reason)
         info.si_code = SYS_SECCOMP;
         info.si_call_addr = (void __user *)KSTK_EIP(current);
         info.si_errno = reason;
-        info.si_arch = syscall_get_arch(current, task_pt_regs(current));
+        info.si_arch = syscall_get_arch();
         info.si_syscall = syscall;
         force_sig_info(SIGSYS, &info, current);
 }
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 9be67c5e5b0f..737b0efa1a62 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -3611,6 +3611,8 @@ static const char readme_msg[] =
 #ifdef CONFIG_TRACER_SNAPSHOT
         "\t\t      snapshot\n"
 #endif
+        "\t\t      dump\n"
+        "\t\t      cpudump\n"
         "\t     example: echo do_fault:traceoff > set_ftrace_filter\n"
         "\t              echo do_trap:traceoff:3 > set_ftrace_filter\n"
         "\t     The first one will disable tracing every time do_fault is hit\n"
@@ -4390,8 +4392,6 @@ static void tracing_spd_release_pipe(struct splice_pipe_desc *spd,
 
 static const struct pipe_buf_operations tracing_pipe_buf_ops = {
         .can_merge              = 0,
-        .map                    = generic_pipe_buf_map,
-        .unmap                  = generic_pipe_buf_unmap,
         .confirm                = generic_pipe_buf_confirm,
         .release                = generic_pipe_buf_release,
         .steal                  = generic_pipe_buf_steal,
@@ -4486,7 +4486,7 @@ static ssize_t tracing_splice_read_pipe(struct file *filp,
         trace_access_lock(iter->cpu_file);
 
         /* Fill as many pages as possible. */
-        for (i = 0, rem = len; i < pipe->buffers && rem; i++) {
+        for (i = 0, rem = len; i < spd.nr_pages_max && rem; i++) {
                 spd.pages[i] = alloc_page(GFP_KERNEL);
                 if (!spd.pages[i])
                         break;
@@ -5279,8 +5279,6 @@ static void buffer_pipe_buf_get(struct pipe_inode_info *pipe,
 /* Pipe buffer operations for a buffer. */
 static const struct pipe_buf_operations buffer_pipe_buf_ops = {
         .can_merge              = 0,
-        .map                    = generic_pipe_buf_map,
-        .unmap                  = generic_pipe_buf_unmap,
         .confirm                = generic_pipe_buf_confirm,
         .release                = buffer_pipe_buf_release,
         .steal                  = generic_pipe_buf_steal,
@@ -5356,7 +5354,7 @@ tracing_buffers_splice_read(struct file *file, loff_t *ppos,
         trace_access_lock(iter->cpu_file);
         entries = ring_buffer_entries_cpu(iter->trace_buffer->buffer, iter->cpu_file);
 
-        for (i = 0; i < pipe->buffers && len && entries; i++, len -= PAGE_SIZE) {
+        for (i = 0; i < spd.nr_pages_max && len && entries; i++, len -= PAGE_SIZE) {
                 struct page *page;
                 int r;
 
diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c
index 83a4378dc5e0..3ddfd8f62c05 100644
--- a/kernel/trace/trace_events.c
+++ b/kernel/trace/trace_events.c
@@ -223,24 +223,25 @@ int ftrace_event_reg(struct ftrace_event_call *call,
 {
         struct ftrace_event_file *file = data;
 
+        WARN_ON(!(call->flags & TRACE_EVENT_FL_TRACEPOINT));
         switch (type) {
         case TRACE_REG_REGISTER:
-                return tracepoint_probe_register(call->name,
+                return tracepoint_probe_register(call->tp,
                                                  call->class->probe,
                                                  file);
         case TRACE_REG_UNREGISTER:
-                tracepoint_probe_unregister(call->name,
+                tracepoint_probe_unregister(call->tp,
                                             call->class->probe,
                                             file);
                 return 0;
 
 #ifdef CONFIG_PERF_EVENTS
         case TRACE_REG_PERF_REGISTER:
-                return tracepoint_probe_register(call->name,
+                return tracepoint_probe_register(call->tp,
                                                  call->class->perf_probe,
                                                  call);
         case TRACE_REG_PERF_UNREGISTER:
-                tracepoint_probe_unregister(call->name,
+                tracepoint_probe_unregister(call->tp,
                                             call->class->perf_probe,
                                             call);
                 return 0;
@@ -352,7 +353,7 @@ static int __ftrace_event_enable_disable(struct ftrace_event_file *file,
                         if (ret) {
                                 tracing_stop_cmdline_record();
                                 pr_info("event trace: Could not enable event "
-                                        "%s\n", call->name);
+                                        "%s\n", ftrace_event_name(call));
                                 break;
                         }
                         set_bit(FTRACE_EVENT_FL_ENABLED_BIT, &file->flags);
@@ -481,27 +482,29 @@ __ftrace_set_clr_event_nolock(struct trace_array *tr, const char *match,
 {
         struct ftrace_event_file *file;
         struct ftrace_event_call *call;
+        const char *name;
         int ret = -EINVAL;
 
         list_for_each_entry(file, &tr->events, list) {
 
                 call = file->event_call;
+                name = ftrace_event_name(call);
 
-                if (!call->name || !call->class || !call->class->reg)
+                if (!name || !call->class || !call->class->reg)
                         continue;
 
                 if (call->flags & TRACE_EVENT_FL_IGNORE_ENABLE)
                         continue;
 
                 if (match &&
-                    strcmp(match, call->name) != 0 &&
+                    strcmp(match, name) != 0 &&
                     strcmp(match, call->class->system) != 0)
                         continue;
 
                 if (sub && strcmp(sub, call->class->system) != 0)
                         continue;
 
-                if (event && strcmp(event, call->name) != 0)
+                if (event && strcmp(event, name) != 0)
                         continue;
 
                 ftrace_event_enable_disable(file, set);
@@ -699,7 +702,7 @@ static int t_show(struct seq_file *m, void *v)
 
         if (strcmp(call->class->system, TRACE_SYSTEM) != 0)
                 seq_printf(m, "%s:", call->class->system);
-        seq_printf(m, "%s\n", call->name);
+        seq_printf(m, "%s\n", ftrace_event_name(call));
 
         return 0;
 }
@@ -792,7 +795,7 @@ system_enable_read(struct file *filp, char __user *ubuf, size_t cnt,
         mutex_lock(&event_mutex);
         list_for_each_entry(file, &tr->events, list) {
                 call = file->event_call;
-                if (!call->name || !call->class || !call->class->reg)
+                if (!ftrace_event_name(call) || !call->class || !call->class->reg)
                         continue;
 
                 if (system && strcmp(call->class->system, system->name) != 0)
@@ -907,7 +910,7 @@ static int f_show(struct seq_file *m, void *v)
 
         switch ((unsigned long)v) {
         case FORMAT_HEADER:
-                seq_printf(m, "name: %s\n", call->name);
+                seq_printf(m, "name: %s\n", ftrace_event_name(call));
                 seq_printf(m, "ID: %d\n", call->event.type);
                 seq_printf(m, "format:\n");
                 return 0;
@@ -1527,6 +1530,7 @@ event_create_dir(struct dentry *parent, struct ftrace_event_file *file)
         struct trace_array *tr = file->tr;
         struct list_head *head;
         struct dentry *d_events;
+        const char *name;
         int ret;
 
         /*
@@ -1540,10 +1544,11 @@ event_create_dir(struct dentry *parent, struct ftrace_event_file *file)
         } else
                 d_events = parent;
 
-        file->dir = debugfs_create_dir(call->name, d_events);
+        name = ftrace_event_name(call);
+        file->dir = debugfs_create_dir(name, d_events);
         if (!file->dir) {
                 pr_warning("Could not create debugfs '%s' directory\n",
-                           call->name);
+                           name);
                 return -1;
         }
 
@@ -1567,7 +1572,7 @@ event_create_dir(struct dentry *parent, struct ftrace_event_file *file)
                 ret = call->class->define_fields(call);
                 if (ret < 0) {
                         pr_warning("Could not initialize trace point"
-                                   " events/%s\n", call->name);
+                                   " events/%s\n", name);
                         return -1;
                 }
         }
@@ -1631,15 +1636,17 @@ static void event_remove(struct ftrace_event_call *call)
 static int event_init(struct ftrace_event_call *call)
 {
         int ret = 0;
+        const char *name;
 
-        if (WARN_ON(!call->name))
+        name = ftrace_event_name(call);
+        if (WARN_ON(!name))
                 return -EINVAL;
 
         if (call->class->raw_init) {
                 ret = call->class->raw_init(call);
                 if (ret < 0 && ret != -ENOSYS)
                         pr_warn("Could not initialize trace events/%s\n",
-                                call->name);
+                                name);
         }
 
         return ret;
@@ -1885,7 +1892,7 @@ __trace_add_event_dirs(struct trace_array *tr)
                 ret = __trace_add_new_event(call, tr);
                 if (ret < 0)
                         pr_warning("Could not create directory for event %s\n",
-                                   call->name);
+                                   ftrace_event_name(call));
         }
 }
 
@@ -1894,18 +1901,20 @@ find_event_file(struct trace_array *tr, const char *system,  const char *event)
 {
         struct ftrace_event_file *file;
         struct ftrace_event_call *call;
+        const char *name;
 
         list_for_each_entry(file, &tr->events, list) {
 
                 call = file->event_call;
+                name = ftrace_event_name(call);
 
-                if (!call->name || !call->class || !call->class->reg)
+                if (!name || !call->class || !call->class->reg)
                         continue;
 
                 if (call->flags & TRACE_EVENT_FL_IGNORE_ENABLE)
                         continue;
 
-                if (strcmp(event, call->name) == 0 &&
+                if (strcmp(event, name) == 0 &&
                     strcmp(system, call->class->system) == 0)
                         return file;
         }
@@ -1973,7 +1982,7 @@ event_enable_print(struct seq_file *m, unsigned long ip,
         seq_printf(m, "%s:%s:%s",
                    data->enable ? ENABLE_EVENT_STR : DISABLE_EVENT_STR,
                    data->file->event_call->class->system,
-                   data->file->event_call->name);
+                   ftrace_event_name(data->file->event_call));
 
         if (data->count == -1)
                 seq_printf(m, ":unlimited\n");
@@ -2193,7 +2202,7 @@ __trace_early_add_event_dirs(struct trace_array *tr)
                 ret = event_create_dir(tr->event_dir, file);
                 if (ret < 0)
                         pr_warning("Could not create directory for event %s\n",
-                                   file->event_call->name);
+                                   ftrace_event_name(file->event_call));
         }
 }
 
@@ -2217,7 +2226,7 @@ __trace_early_add_events(struct trace_array *tr)
                 ret = __trace_early_add_new_event(call, tr);
                 if (ret < 0)
                         pr_warning("Could not create early event %s\n",
-                                   call->name);
+                                   ftrace_event_name(call));
         }
 }
 
@@ -2549,7 +2558,7 @@ static __init void event_trace_self_tests(void)
                         continue;
 #endif
 
-                pr_info("Testing event %s: ", call->name);
+                pr_info("Testing event %s: ", ftrace_event_name(call));
 
                 /*
                  * If an event is already enabled, someone is using
diff --git a/kernel/trace/trace_events_trigger.c b/kernel/trace/trace_events_trigger.c
index 8efbb69b04f0..925f537f07d1 100644
--- a/kernel/trace/trace_events_trigger.c
+++ b/kernel/trace/trace_events_trigger.c
@@ -1095,7 +1095,7 @@ event_enable_trigger_print(struct seq_file *m, struct event_trigger_ops *ops,
         seq_printf(m, "%s:%s:%s",
                    enable_data->enable ? ENABLE_EVENT_STR : DISABLE_EVENT_STR,
                    enable_data->file->event_call->class->system,
-                   enable_data->file->event_call->name);
+                   ftrace_event_name(enable_data->file->event_call));
 
         if (data->count == -1)
                 seq_puts(m, ":unlimited");
diff --git a/kernel/trace/trace_export.c b/kernel/trace/trace_export.c
index ee0a5098ac43..d4ddde28a81a 100644
--- a/kernel/trace/trace_export.c
+++ b/kernel/trace/trace_export.c
@@ -173,9 +173,11 @@ struct ftrace_event_class __refdata event_class_ftrace_##call = {	\
 };                                                                      \
                                                                         \
 struct ftrace_event_call __used event_##call = {                        \
-        .name                   = #call,                                \
-        .event.type             = etype,                                \
         .class                  = &event_class_ftrace_##call,           \
+        {                                                               \
+                .name                   = #call,                        \
+        },                                                              \
+        .event.type             = etype,                                \
         .print_fmt              = print,                                \
         .flags                  = TRACE_EVENT_FL_IGNORE_ENABLE | TRACE_EVENT_FL_USE_CALL_FILTER, \
 };                                                                      \
diff --git a/kernel/trace/trace_kprobe.c b/kernel/trace/trace_kprobe.c
index d021d21dd150..903ae28962be 100644
--- a/kernel/trace/trace_kprobe.c
+++ b/kernel/trace/trace_kprobe.c
@@ -341,7 +341,7 @@ static struct trace_kprobe *find_trace_kprobe(const char *event,
         struct trace_kprobe *tk;
 
         list_for_each_entry(tk, &probe_list, list)
-                if (strcmp(tk->tp.call.name, event) == 0 &&
+                if (strcmp(ftrace_event_name(&tk->tp.call), event) == 0 &&
                     strcmp(tk->tp.call.class->system, group) == 0)
                         return tk;
         return NULL;
@@ -516,7 +516,8 @@ static int register_trace_kprobe(struct trace_kprobe *tk)
         mutex_lock(&probe_lock);
 
         /* Delete old (same name) event if exist */
-        old_tk = find_trace_kprobe(tk->tp.call.name, tk->tp.call.class->system);
+        old_tk = find_trace_kprobe(ftrace_event_name(&tk->tp.call),
+                        tk->tp.call.class->system);
         if (old_tk) {
                 ret = unregister_trace_kprobe(old_tk);
                 if (ret < 0)
@@ -564,7 +565,8 @@ static int trace_kprobe_module_callback(struct notifier_block *nb,
                         if (ret)
                                 pr_warning("Failed to re-register probe %s on"
                                            "%s: %d\n",
-                                           tk->tp.call.name, mod->name, ret);
+                                           ftrace_event_name(&tk->tp.call),
+                                           mod->name, ret);
                 }
         }
         mutex_unlock(&probe_lock);
@@ -818,7 +820,8 @@ static int probes_seq_show(struct seq_file *m, void *v)
         int i;
 
         seq_printf(m, "%c", trace_kprobe_is_return(tk) ? 'r' : 'p');
-        seq_printf(m, ":%s/%s", tk->tp.call.class->system, tk->tp.call.name);
+        seq_printf(m, ":%s/%s", tk->tp.call.class->system,
+                        ftrace_event_name(&tk->tp.call));
 
         if (!tk->symbol)
                 seq_printf(m, " 0x%p", tk->rp.kp.addr);
@@ -876,7 +879,8 @@ static int probes_profile_seq_show(struct seq_file *m, void *v)
 {
         struct trace_kprobe *tk = v;
 
-        seq_printf(m, "  %-44s %15lu %15lu\n", tk->tp.call.name, tk->nhit,
+        seq_printf(m, "  %-44s %15lu %15lu\n",
+                   ftrace_event_name(&tk->tp.call), tk->nhit,
                    tk->rp.kp.nmissed);
 
         return 0;
@@ -1011,7 +1015,7 @@ print_kprobe_event(struct trace_iterator *iter, int flags,
         field = (struct kprobe_trace_entry_head *)iter->ent;
         tp = container_of(event, struct trace_probe, call.event);
 
-        if (!trace_seq_printf(s, "%s: (", tp->call.name))
+        if (!trace_seq_printf(s, "%s: (", ftrace_event_name(&tp->call)))
                 goto partial;
 
         if (!seq_print_ip_sym(s, field->ip, flags | TRACE_ITER_SYM_OFFSET))
@@ -1047,7 +1051,7 @@ print_kretprobe_event(struct trace_iterator *iter, int flags,
         field = (struct kretprobe_trace_entry_head *)iter->ent;
         tp = container_of(event, struct trace_probe, call.event);
 
-        if (!trace_seq_printf(s, "%s: (", tp->call.name))
+        if (!trace_seq_printf(s, "%s: (", ftrace_event_name(&tp->call)))
                 goto partial;
 
         if (!seq_print_ip_sym(s, field->ret_ip, flags | TRACE_ITER_SYM_OFFSET))
@@ -1286,7 +1290,8 @@ static int register_kprobe_event(struct trace_kprobe *tk)
         call->data = tk;
         ret = trace_add_event_call(call);
         if (ret) {
-                pr_info("Failed to register kprobe event: %s\n", call->name);
+                pr_info("Failed to register kprobe event: %s\n",
+                        ftrace_event_name(call));
                 kfree(call->print_fmt);
                 unregister_ftrace_event(&call->event);
         }
diff --git a/kernel/trace/trace_output.c b/kernel/trace/trace_output.c
index ca0e79e2abaa..a436de18aa99 100644
--- a/kernel/trace/trace_output.c
+++ b/kernel/trace/trace_output.c
@@ -431,7 +431,7 @@ int ftrace_raw_output_prep(struct trace_iterator *iter,
         }
 
         trace_seq_init(p);
-        ret = trace_seq_printf(s, "%s: ", event->name);
+        ret = trace_seq_printf(s, "%s: ", ftrace_event_name(event));
         if (!ret)
                 return TRACE_TYPE_PARTIAL_LINE;
 
diff --git a/kernel/trace/trace_uprobe.c b/kernel/trace/trace_uprobe.c
index e4473367e7a4..930e51462dc8 100644
--- a/kernel/trace/trace_uprobe.c
+++ b/kernel/trace/trace_uprobe.c
@@ -294,7 +294,7 @@ static struct trace_uprobe *find_probe_event(const char *event, const char *grou
         struct trace_uprobe *tu;
 
         list_for_each_entry(tu, &uprobe_list, list)
-                if (strcmp(tu->tp.call.name, event) == 0 &&
+                if (strcmp(ftrace_event_name(&tu->tp.call), event) == 0 &&
                     strcmp(tu->tp.call.class->system, group) == 0)
                         return tu;
 
@@ -324,7 +324,8 @@ static int register_trace_uprobe(struct trace_uprobe *tu)
         mutex_lock(&uprobe_lock);
 
         /* register as an event */
-        old_tu = find_probe_event(tu->tp.call.name, tu->tp.call.class->system);
+        old_tu = find_probe_event(ftrace_event_name(&tu->tp.call),
+                        tu->tp.call.class->system);
         if (old_tu) {
                 /* delete old event */
                 ret = unregister_trace_uprobe(old_tu);
@@ -599,7 +600,8 @@ static int probes_seq_show(struct seq_file *m, void *v)
         char c = is_ret_probe(tu) ? 'r' : 'p';
         int i;
 
-        seq_printf(m, "%c:%s/%s", c, tu->tp.call.class->system, tu->tp.call.name);
+        seq_printf(m, "%c:%s/%s", c, tu->tp.call.class->system,
+                        ftrace_event_name(&tu->tp.call));
         seq_printf(m, " %s:0x%p", tu->filename, (void *)tu->offset);
 
         for (i = 0; i < tu->tp.nr_args; i++)
@@ -649,7 +651,8 @@ static int probes_profile_seq_show(struct seq_file *m, void *v)
 {
         struct trace_uprobe *tu = v;
 
-        seq_printf(m, "  %s %-44s %15lu\n", tu->filename, tu->tp.call.name, tu->nhit);
+        seq_printf(m, "  %s %-44s %15lu\n", tu->filename,
+                        ftrace_event_name(&tu->tp.call), tu->nhit);
         return 0;
 }
 
@@ -844,12 +847,14 @@ print_uprobe_event(struct trace_iterator *iter, int flags, struct trace_event *e
         tu = container_of(event, struct trace_uprobe, tp.call.event);
 
         if (is_ret_probe(tu)) {
-                if (!trace_seq_printf(s, "%s: (0x%lx <- 0x%lx)", tu->tp.call.name,
+                if (!trace_seq_printf(s, "%s: (0x%lx <- 0x%lx)",
+                                        ftrace_event_name(&tu->tp.call),
                                         entry->vaddr[1], entry->vaddr[0]))
                         goto partial;
                 data = DATAOF_TRACE_ENTRY(entry, true);
         } else {
-                if (!trace_seq_printf(s, "%s: (0x%lx)", tu->tp.call.name,
+                if (!trace_seq_printf(s, "%s: (0x%lx)",
+                                        ftrace_event_name(&tu->tp.call),
                                         entry->vaddr[0]))
                         goto partial;
                 data = DATAOF_TRACE_ENTRY(entry, false);
@@ -1275,7 +1280,8 @@ static int register_uprobe_event(struct trace_uprobe *tu)
         ret = trace_add_event_call(call);
 
         if (ret) {
-                pr_info("Failed to register uprobe event: %s\n", call->name);
+                pr_info("Failed to register uprobe event: %s\n",
+                        ftrace_event_name(call));
                 kfree(call->print_fmt);
                 unregister_ftrace_event(&call->event);
         }
diff --git a/kernel/tracepoint.c b/kernel/tracepoint.c
index fb0a38a26555..ac5b23cf7212 100644
--- a/kernel/tracepoint.c
+++ b/kernel/tracepoint.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2008 Mathieu Desnoyers
+ * Copyright (C) 2008-2014 Mathieu Desnoyers
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -33,39 +33,27 @@ extern struct tracepoint * const __stop___tracepoints_ptrs[];
 /* Set to 1 to enable tracepoint debug output */
 static const int tracepoint_debug;
 
+#ifdef CONFIG_MODULES
 /*
- * Tracepoints mutex protects the builtin and module tracepoints and the hash
- * table, as well as the local module list.
+ * Tracepoint module list mutex protects the local module list.
  */
-static DEFINE_MUTEX(tracepoints_mutex);
+static DEFINE_MUTEX(tracepoint_module_list_mutex);
 
-#ifdef CONFIG_MODULES
-/* Local list of struct module */
+/* Local list of struct tp_module */
 static LIST_HEAD(tracepoint_module_list);
 #endif /* CONFIG_MODULES */
 
 /*
- * Tracepoint hash table, containing the active tracepoints.
- * Protected by tracepoints_mutex.
+ * tracepoints_mutex protects the builtin and module tracepoints.
+ * tracepoints_mutex nests inside tracepoint_module_list_mutex.
  */
-#define TRACEPOINT_HASH_BITS 6
-#define TRACEPOINT_TABLE_SIZE (1 << TRACEPOINT_HASH_BITS)
-static struct hlist_head tracepoint_table[TRACEPOINT_TABLE_SIZE];
+static DEFINE_MUTEX(tracepoints_mutex);
 
 /*
  * Note about RCU :
  * It is used to delay the free of multiple probes array until a quiescent
  * state is reached.
- * Tracepoint entries modifications are protected by the tracepoints_mutex.
  */
-struct tracepoint_entry {
-        struct hlist_node hlist;
-        struct tracepoint_func *funcs;
-        int refcount;   /* Number of times armed. 0 if disarmed. */
-        int enabled;    /* Tracepoint enabled */
-        char name[0];
-};
-
 struct tp_probes {
         struct rcu_head rcu;
         struct tracepoint_func probes[0];
@@ -92,34 +80,33 @@ static inline void release_probes(struct tracepoint_func *old)
         }
 }
 
-static void debug_print_probes(struct tracepoint_entry *entry)
+static void debug_print_probes(struct tracepoint_func *funcs)
 {
         int i;
 
-        if (!tracepoint_debug || !entry->funcs)
+        if (!tracepoint_debug || !funcs)
                 return;
 
-        for (i = 0; entry->funcs[i].func; i++)
-                printk(KERN_DEBUG "Probe %d : %p\n", i, entry->funcs[i].func);
+        for (i = 0; funcs[i].func; i++)
+                printk(KERN_DEBUG "Probe %d : %p\n", i, funcs[i].func);
 }
 
-static struct tracepoint_func *
-tracepoint_entry_add_probe(struct tracepoint_entry *entry,
-                           void *probe, void *data)
+static struct tracepoint_func *func_add(struct tracepoint_func **funcs,
+                struct tracepoint_func *tp_func)
 {
         int nr_probes = 0;
         struct tracepoint_func *old, *new;
 
-        if (WARN_ON(!probe))
+        if (WARN_ON(!tp_func->func))
                 return ERR_PTR(-EINVAL);
 
-        debug_print_probes(entry);
-        old = entry->funcs;
+        debug_print_probes(*funcs);
+        old = *funcs;
         if (old) {
                 /* (N -> N+1), (N != 0, 1) probes */
                 for (nr_probes = 0; old[nr_probes].func; nr_probes++)
-                        if (old[nr_probes].func == probe &&
-                            old[nr_probes].data == data)
+                        if (old[nr_probes].func == tp_func->func &&
+                            old[nr_probes].data == tp_func->data)
                                 return ERR_PTR(-EEXIST);
         }
         /* + 2 : one for new probe, one for NULL func */
@@ -128,33 +115,30 @@ tracepoint_entry_add_probe(struct tracepoint_entry *entry,
                 return ERR_PTR(-ENOMEM);
         if (old)
                 memcpy(new, old, nr_probes * sizeof(struct tracepoint_func));
-        new[nr_probes].func = probe;
-        new[nr_probes].data = data;
+        new[nr_probes] = *tp_func;
         new[nr_probes + 1].func = NULL;
-        entry->refcount = nr_probes + 1;
-        entry->funcs = new;
-        debug_print_probes(entry);
+        *funcs = new;
+        debug_print_probes(*funcs);
         return old;
 }
 
-static void *
-tracepoint_entry_remove_probe(struct tracepoint_entry *entry,
-                              void *probe, void *data)
+static void *func_remove(struct tracepoint_func **funcs,
+                struct tracepoint_func *tp_func)
 {
         int nr_probes = 0, nr_del = 0, i;
         struct tracepoint_func *old, *new;
 
-        old = entry->funcs;
+        old = *funcs;
 
         if (!old)
                 return ERR_PTR(-ENOENT);
 
-        debug_print_probes(entry);
+        debug_print_probes(*funcs);
         /* (N -> M), (N > 1, M >= 0) probes */
-        if (probe) {
+        if (tp_func->func) {
                 for (nr_probes = 0; old[nr_probes].func; nr_probes++) {
-                        if (old[nr_probes].func == probe &&
-                             old[nr_probes].data == data)
+                        if (old[nr_probes].func == tp_func->func &&
+                             old[nr_probes].data == tp_func->data)
                                 nr_del++;
                 }
         }
@@ -165,9 +149,8 @@ tracepoint_entry_remove_probe(struct tracepoint_entry *entry,
          */
         if (nr_probes - nr_del == 0) {
                 /* N -> 0, (N > 1) */
-                entry->funcs = NULL;
-                entry->refcount = 0;
-                debug_print_probes(entry);
+                *funcs = NULL;
+                debug_print_probes(*funcs);
                 return old;
         } else {
                 int j = 0;
@@ -177,91 +160,35 @@ tracepoint_entry_remove_probe(struct tracepoint_entry *entry,
                 if (new == NULL)
                         return ERR_PTR(-ENOMEM);
                 for (i = 0; old[i].func; i++)
-                        if (old[i].func != probe || old[i].data != data)
+                        if (old[i].func != tp_func->func
+                                        || old[i].data != tp_func->data)
                                 new[j++] = old[i];
                 new[nr_probes - nr_del].func = NULL;
-                entry->refcount = nr_probes - nr_del;
-                entry->funcs = new;
+                *funcs = new;
         }
-        debug_print_probes(entry);
+        debug_print_probes(*funcs);
         return old;
 }
 
 /*
- * Get tracepoint if the tracepoint is present in the tracepoint hash table.
- * Must be called with tracepoints_mutex held.
- * Returns NULL if not present.
+ * Add the probe function to a tracepoint.
  */
-static struct tracepoint_entry *get_tracepoint(const char *name)
+static int tracepoint_add_func(struct tracepoint *tp,
+                struct tracepoint_func *func)
 {
-        struct hlist_head *head;
-        struct tracepoint_entry *e;
-        u32 hash = jhash(name, strlen(name), 0);
-
-        head = &tracepoint_table[hash & (TRACEPOINT_TABLE_SIZE - 1)];
-        hlist_for_each_entry(e, head, hlist) {
-                if (!strcmp(name, e->name))
-                        return e;
-        }
-        return NULL;
-}
+        struct tracepoint_func *old, *tp_funcs;
 
-/*
- * Add the tracepoint to the tracepoint hash table. Must be called with
- * tracepoints_mutex held.
- */
-static struct tracepoint_entry *add_tracepoint(const char *name)
-{
-        struct hlist_head *head;
-        struct tracepoint_entry *e;
-        size_t name_len = strlen(name) + 1;
-        u32 hash = jhash(name, name_len-1, 0);
-
-        head = &tracepoint_table[hash & (TRACEPOINT_TABLE_SIZE - 1)];
-        hlist_for_each_entry(e, head, hlist) {
-                if (!strcmp(name, e->name)) {
-                        printk(KERN_NOTICE
-                                "tracepoint %s busy\n", name);
-                        return ERR_PTR(-EEXIST);        /* Already there */
-                }
-        }
-        /*
-         * Using kmalloc here to allocate a variable length element. Could
-         * cause some memory fragmentation if overused.
-         */
-        e = kmalloc(sizeof(struct tracepoint_entry) + name_len, GFP_KERNEL);
-        if (!e)
-                return ERR_PTR(-ENOMEM);
-        memcpy(&e->name[0], name, name_len);
-        e->funcs = NULL;
-        e->refcount = 0;
-        e->enabled = 0;
-        hlist_add_head(&e->hlist, head);
-        return e;
-}
+        if (tp->regfunc && !static_key_enabled(&tp->key))
+                tp->regfunc();
 
-/*
- * Remove the tracepoint from the tracepoint hash table. Must be called with
- * mutex_lock held.
- */
-static inline void remove_tracepoint(struct tracepoint_entry *e)
-{
-        hlist_del(&e->hlist);
-        kfree(e);
-}
-
-/*
- * Sets the probe callback corresponding to one tracepoint.
- */
-static void set_tracepoint(struct tracepoint_entry **entry,
-        struct tracepoint *elem, int active)
-{
-        WARN_ON(strcmp((*entry)->name, elem->name) != 0);
-
-        if (elem->regfunc && !static_key_enabled(&elem->key) && active)
-                elem->regfunc();
-        else if (elem->unregfunc && static_key_enabled(&elem->key) && !active)
-                elem->unregfunc();
+        tp_funcs = rcu_dereference_protected(tp->funcs,
+                        lockdep_is_held(&tracepoints_mutex));
+        old = func_add(&tp_funcs, func);
+        if (IS_ERR(old)) {
+                WARN_ON_ONCE(1);
+                return PTR_ERR(old);
+        }
+        release_probes(old);
 
         /*
          * rcu_assign_pointer has a smp_wmb() which makes sure that the new
@@ -270,193 +197,90 @@ static void set_tracepoint(struct tracepoint_entry **entry,
          * include/linux/tracepoints.h. A matching smp_read_barrier_depends()
          * is used.
          */
-        rcu_assign_pointer(elem->funcs, (*entry)->funcs);
-        if (active && !static_key_enabled(&elem->key))
-                static_key_slow_inc(&elem->key);
-        else if (!active && static_key_enabled(&elem->key))
-                static_key_slow_dec(&elem->key);
+        rcu_assign_pointer(tp->funcs, tp_funcs);
+        if (!static_key_enabled(&tp->key))
+                static_key_slow_inc(&tp->key);
+        return 0;
 }
 
 /*
- * Disable a tracepoint and its probe callback.
+ * Remove a probe function from a tracepoint.
  * Note: only waiting an RCU period after setting elem->call to the empty
  * function insures that the original callback is not used anymore. This insured
  * by preempt_disable around the call site.
  */
-static void disable_tracepoint(struct tracepoint *elem)
+static int tracepoint_remove_func(struct tracepoint *tp,
+                struct tracepoint_func *func)
 {
-        if (elem->unregfunc && static_key_enabled(&elem->key))
-                elem->unregfunc();
-
-        if (static_key_enabled(&elem->key))
-                static_key_slow_dec(&elem->key);
-        rcu_assign_pointer(elem->funcs, NULL);
-}
+        struct tracepoint_func *old, *tp_funcs;
 
-/**
- * tracepoint_update_probe_range - Update a probe range
- * @begin: beginning of the range
- * @end: end of the range
- *
- * Updates the probe callback corresponding to a range of tracepoints.
- * Called with tracepoints_mutex held.
- */
-static void tracepoint_update_probe_range(struct tracepoint * const *begin,
-                                          struct tracepoint * const *end)
-{
-        struct tracepoint * const *iter;
-        struct tracepoint_entry *mark_entry;
-
-        if (!begin)
-                return;
-
-        for (iter = begin; iter < end; iter++) {
-                mark_entry = get_tracepoint((*iter)->name);
-                if (mark_entry) {
-                        set_tracepoint(&mark_entry, *iter,
-                                        !!mark_entry->refcount);
-                        mark_entry->enabled = !!mark_entry->refcount;
-                } else {
-                        disable_tracepoint(*iter);
-                }
+        tp_funcs = rcu_dereference_protected(tp->funcs,
+                        lockdep_is_held(&tracepoints_mutex));
+        old = func_remove(&tp_funcs, func);
+        if (IS_ERR(old)) {
+                WARN_ON_ONCE(1);
+                return PTR_ERR(old);
         }
-}
-
-#ifdef CONFIG_MODULES
-void module_update_tracepoints(void)
-{
-        struct tp_module *tp_mod;
-
-        list_for_each_entry(tp_mod, &tracepoint_module_list, list)
-                tracepoint_update_probe_range(tp_mod->tracepoints_ptrs,
-                        tp_mod->tracepoints_ptrs + tp_mod->num_tracepoints);
-}
-#else /* CONFIG_MODULES */
-void module_update_tracepoints(void)
-{
-}
-#endif /* CONFIG_MODULES */
+        release_probes(old);
 
+        if (!tp_funcs) {
+                /* Removed last function */
+                if (tp->unregfunc && static_key_enabled(&tp->key))
+                        tp->unregfunc();
 
-/*
- * Update probes, removing the faulty probes.
- * Called with tracepoints_mutex held.
- */
-static void tracepoint_update_probes(void)
-{
-        /* Core kernel tracepoints */
-        tracepoint_update_probe_range(__start___tracepoints_ptrs,
-                __stop___tracepoints_ptrs);
-        /* tracepoints in modules. */
-        module_update_tracepoints();
-}
-
-static struct tracepoint_func *
-tracepoint_add_probe(const char *name, void *probe, void *data)
-{
-        struct tracepoint_entry *entry;
-        struct tracepoint_func *old;
-
-        entry = get_tracepoint(name);
-        if (!entry) {
-                entry = add_tracepoint(name);
-                if (IS_ERR(entry))
-                        return (struct tracepoint_func *)entry;
+                if (static_key_enabled(&tp->key))
+                        static_key_slow_dec(&tp->key);
         }
-        old = tracepoint_entry_add_probe(entry, probe, data);
-        if (IS_ERR(old) && !entry->refcount)
-                remove_tracepoint(entry);
-        return old;
+        rcu_assign_pointer(tp->funcs, tp_funcs);
+        return 0;
 }
 
 /**
  * tracepoint_probe_register -  Connect a probe to a tracepoint
- * @name: tracepoint name
+ * @tp: tracepoint
  * @probe: probe handler
- * @data: probe private data
- *
- * Returns:
- * - 0 if the probe was successfully registered, and tracepoint
- *   callsites are currently loaded for that probe,
- * - -ENODEV if the probe was successfully registered, but no tracepoint
- *   callsite is currently loaded for that probe,
- * - other negative error value on error.
- *
- * When tracepoint_probe_register() returns either 0 or -ENODEV,
- * parameters @name, @probe, and @data may be used by the tracepoint
- * infrastructure until the probe is unregistered.
  *
- * The probe address must at least be aligned on the architecture pointer size.
+ * Returns 0 if ok, error value on error.
+ * Note: if @tp is within a module, the caller is responsible for
+ * unregistering the probe before the module is gone. This can be
+ * performed either with a tracepoint module going notifier, or from
+ * within module exit functions.
  */
-int tracepoint_probe_register(const char *name, void *probe, void *data)
+int tracepoint_probe_register(struct tracepoint *tp, void *probe, void *data)
 {
-        struct tracepoint_func *old;
-        struct tracepoint_entry *entry;
-        int ret = 0;
+        struct tracepoint_func tp_func;
+        int ret;
 
         mutex_lock(&tracepoints_mutex);
-        old = tracepoint_add_probe(name, probe, data);
-        if (IS_ERR(old)) {
-                mutex_unlock(&tracepoints_mutex);
-                return PTR_ERR(old);
-        }
-        tracepoint_update_probes();             /* may update entry */
-        entry = get_tracepoint(name);
-        /* Make sure the entry was enabled */
-        if (!entry || !entry->enabled)
-                ret = -ENODEV;
+        tp_func.func = probe;
+        tp_func.data = data;
+        ret = tracepoint_add_func(tp, &tp_func);
         mutex_unlock(&tracepoints_mutex);
-        release_probes(old);
         return ret;
 }
 EXPORT_SYMBOL_GPL(tracepoint_probe_register);
 
-static struct tracepoint_func *
-tracepoint_remove_probe(const char *name, void *probe, void *data)
-{
-        struct tracepoint_entry *entry;
-        struct tracepoint_func *old;
-
-        entry = get_tracepoint(name);
-        if (!entry)
-                return ERR_PTR(-ENOENT);
-        old = tracepoint_entry_remove_probe(entry, probe, data);
-        if (IS_ERR(old))
-                return old;
-        if (!entry->refcount)
-                remove_tracepoint(entry);
-        return old;
-}
-
 /**
  * tracepoint_probe_unregister -  Disconnect a probe from a tracepoint
- * @name: tracepoint name
+ * @tp: tracepoint
  * @probe: probe function pointer
- * @data: probe private data
  *
- * We do not need to call a synchronize_sched to make sure the probes have
- * finished running before doing a module unload, because the module unload
- * itself uses stop_machine(), which insures that every preempt disabled section
- * have finished.
+ * Returns 0 if ok, error value on error.
  */
-int tracepoint_probe_unregister(const char *name, void *probe, void *data)
+int tracepoint_probe_unregister(struct tracepoint *tp, void *probe, void *data)
 {
-        struct tracepoint_func *old;
+        struct tracepoint_func tp_func;
+        int ret;
 
         mutex_lock(&tracepoints_mutex);
-        old = tracepoint_remove_probe(name, probe, data);
-        if (IS_ERR(old)) {
-                mutex_unlock(&tracepoints_mutex);
-                return PTR_ERR(old);
-        }
-        tracepoint_update_probes();             /* may update entry */
+        tp_func.func = probe;
+        tp_func.data = data;
+        ret = tracepoint_remove_func(tp, &tp_func);
         mutex_unlock(&tracepoints_mutex);
-        release_probes(old);
-        return 0;
+        return ret;
 }
 EXPORT_SYMBOL_GPL(tracepoint_probe_unregister);
 
-
 #ifdef CONFIG_MODULES
 bool trace_module_has_bad_taint(struct module *mod)
 {
@@ -464,6 +288,74 @@ bool trace_module_has_bad_taint(struct module *mod)
                                (1 << TAINT_UNSIGNED_MODULE));
 }
 
+static BLOCKING_NOTIFIER_HEAD(tracepoint_notify_list);
+
+/**
+ * register_tracepoint_notifier - register tracepoint coming/going notifier
+ * @nb: notifier block
+ *
+ * Notifiers registered with this function are called on module
+ * coming/going with the tracepoint_module_list_mutex held.
+ * The notifier block callback should expect a "struct tp_module" data
+ * pointer.
+ */
+int register_tracepoint_module_notifier(struct notifier_block *nb)
+{
+        struct tp_module *tp_mod;
+        int ret;
+
+        mutex_lock(&tracepoint_module_list_mutex);
+        ret = blocking_notifier_chain_register(&tracepoint_notify_list, nb);
+        if (ret)
+                goto end;
+        list_for_each_entry(tp_mod, &tracepoint_module_list, list)
+                (void) nb->notifier_call(nb, MODULE_STATE_COMING, tp_mod);
+end:
+        mutex_unlock(&tracepoint_module_list_mutex);
+        return ret;
+}
+EXPORT_SYMBOL_GPL(register_tracepoint_module_notifier);
+
+/**
+ * unregister_tracepoint_notifier - unregister tracepoint coming/going notifier
+ * @nb: notifier block
+ *
+ * The notifier block callback should expect a "struct tp_module" data
+ * pointer.
+ */
+int unregister_tracepoint_module_notifier(struct notifier_block *nb)
+{
+        struct tp_module *tp_mod;
+        int ret;
+
+        mutex_lock(&tracepoint_module_list_mutex);
+        ret = blocking_notifier_chain_unregister(&tracepoint_notify_list, nb);
+        if (ret)
+                goto end;
+        list_for_each_entry(tp_mod, &tracepoint_module_list, list)
+                (void) nb->notifier_call(nb, MODULE_STATE_GOING, tp_mod);
+end:
+        mutex_unlock(&tracepoint_module_list_mutex);
+        return ret;
+
+}
+EXPORT_SYMBOL_GPL(unregister_tracepoint_module_notifier);
+
+/*
+ * Ensure the tracer unregistered the module's probes before the module
+ * teardown is performed. Prevents leaks of probe and data pointers.
+ */
+static void tp_module_going_check_quiescent(struct tracepoint * const *begin,
+                struct tracepoint * const *end)
+{
+        struct tracepoint * const *iter;
+
+        if (!begin)
+                return;
+        for (iter = begin; iter < end; iter++)
+                WARN_ON_ONCE((*iter)->funcs);
+}
+
 static int tracepoint_module_coming(struct module *mod)
 {
         struct tp_module *tp_mod;
@@ -479,36 +371,41 @@ static int tracepoint_module_coming(struct module *mod)
          */
         if (trace_module_has_bad_taint(mod))
                 return 0;
-        mutex_lock(&tracepoints_mutex);
+        mutex_lock(&tracepoint_module_list_mutex);
         tp_mod = kmalloc(sizeof(struct tp_module), GFP_KERNEL);
         if (!tp_mod) {
                 ret = -ENOMEM;
                 goto end;
         }
-        tp_mod->num_tracepoints = mod->num_tracepoints;
-        tp_mod->tracepoints_ptrs = mod->tracepoints_ptrs;
+        tp_mod->mod = mod;
         list_add_tail(&tp_mod->list, &tracepoint_module_list);
-        tracepoint_update_probe_range(mod->tracepoints_ptrs,
-                mod->tracepoints_ptrs + mod->num_tracepoints);
+        blocking_notifier_call_chain(&tracepoint_notify_list,
+                        MODULE_STATE_COMING, tp_mod);
 end:
-        mutex_unlock(&tracepoints_mutex);
+        mutex_unlock(&tracepoint_module_list_mutex);
         return ret;
 }
 
-static int tracepoint_module_going(struct module *mod)
+static void tracepoint_module_going(struct module *mod)
 {
-        struct tp_module *pos;
+        struct tp_module *tp_mod;
 
         if (!mod->num_tracepoints)
-                return 0;
+                return;
 
-        mutex_lock(&tracepoints_mutex);
-        tracepoint_update_probe_range(mod->tracepoints_ptrs,
-                mod->tracepoints_ptrs + mod->num_tracepoints);
-        list_for_each_entry(pos, &tracepoint_module_list, list) {
-                if (pos->tracepoints_ptrs == mod->tracepoints_ptrs) {
-                        list_del(&pos->list);
-                        kfree(pos);
+        mutex_lock(&tracepoint_module_list_mutex);
+        list_for_each_entry(tp_mod, &tracepoint_module_list, list) {
+                if (tp_mod->mod == mod) {
+                        blocking_notifier_call_chain(&tracepoint_notify_list,
+                                        MODULE_STATE_GOING, tp_mod);
+                        list_del(&tp_mod->list);
+                        kfree(tp_mod);
+                        /*
+                         * Called the going notifier before checking for
+                         * quiescence.
+                         */
+                        tp_module_going_check_quiescent(mod->tracepoints_ptrs,
+                                mod->tracepoints_ptrs + mod->num_tracepoints);
                         break;
                 }
         }
@@ -518,12 +415,11 @@ static int tracepoint_module_going(struct module *mod)
          * flag on "going", in case a module taints the kernel only after being
          * loaded.
          */
-        mutex_unlock(&tracepoints_mutex);
-        return 0;
+        mutex_unlock(&tracepoint_module_list_mutex);
 }
 
-int tracepoint_module_notify(struct notifier_block *self,
-                             unsigned long val, void *data)
+static int tracepoint_module_notify(struct notifier_block *self,
+                unsigned long val, void *data)
 {
         struct module *mod = data;
         int ret = 0;
@@ -535,24 +431,58 @@ int tracepoint_module_notify(struct notifier_block *self,
         case MODULE_STATE_LIVE:
                 break;
         case MODULE_STATE_GOING:
-                ret = tracepoint_module_going(mod);
+                tracepoint_module_going(mod);
+                break;
+        case MODULE_STATE_UNFORMED:
                 break;
         }
         return ret;
 }
 
-struct notifier_block tracepoint_module_nb = {
+static struct notifier_block tracepoint_module_nb = {
         .notifier_call = tracepoint_module_notify,
         .priority = 0,
 };
 
-static int init_tracepoints(void)
+static __init int init_tracepoints(void)
 {
-        return register_module_notifier(&tracepoint_module_nb);
+        int ret;
+
+        ret = register_module_notifier(&tracepoint_module_nb);
+        if (ret)
+                pr_warning("Failed to register tracepoint module enter notifier\n");
+
+        return ret;
 }
 __initcall(init_tracepoints);
 #endif /* CONFIG_MODULES */
 
+static void for_each_tracepoint_range(struct tracepoint * const *begin,
+                struct tracepoint * const *end,
+                void (*fct)(struct tracepoint *tp, void *priv),
+                void *priv)
+{
+        struct tracepoint * const *iter;
+
+        if (!begin)
+                return;
+        for (iter = begin; iter < end; iter++)
+                fct(*iter, priv);
+}
+
+/**
+ * for_each_kernel_tracepoint - iteration on all kernel tracepoints
+ * @fct: callback
+ * @priv: private data
+ */
+void for_each_kernel_tracepoint(void (*fct)(struct tracepoint *tp, void *priv),
+                void *priv)
+{
+        for_each_tracepoint_range(__start___tracepoints_ptrs,
+                __stop___tracepoints_ptrs, fct, priv);
+}
+EXPORT_SYMBOL_GPL(for_each_kernel_tracepoint);
+
 #ifdef CONFIG_HAVE_SYSCALL_TRACEPOINTS
 
 /* NB: reg/unreg are called while guarded with the tracepoints_mutex */
diff --git a/kernel/user_namespace.c b/kernel/user_namespace.c
index 0d8f6023fd8d..bf71b4b2d632 100644
--- a/kernel/user_namespace.c
+++ b/kernel/user_namespace.c
@@ -152,7 +152,7 @@ static u32 map_id_range_down(struct uid_gid_map *map, u32 id, u32 count)
 
         /* Find the matching extent */
         extents = map->nr_extents;
-        smp_read_barrier_depends();
+        smp_rmb();
         for (idx = 0; idx < extents; idx++) {
                 first = map->extent[idx].first;
                 last = first + map->extent[idx].count - 1;
@@ -176,7 +176,7 @@ static u32 map_id_down(struct uid_gid_map *map, u32 id)
 
         /* Find the matching extent */
         extents = map->nr_extents;
-        smp_read_barrier_depends();
+        smp_rmb();
         for (idx = 0; idx < extents; idx++) {
                 first = map->extent[idx].first;
                 last = first + map->extent[idx].count - 1;
@@ -199,7 +199,7 @@ static u32 map_id_up(struct uid_gid_map *map, u32 id)
 
         /* Find the matching extent */
         extents = map->nr_extents;
-        smp_read_barrier_depends();
+        smp_rmb();
         for (idx = 0; idx < extents; idx++) {
                 first = map->extent[idx].lower_first;
                 last = first + map->extent[idx].count - 1;
@@ -615,9 +615,8 @@ static ssize_t map_write(struct file *file, const char __user *buf,
          * were written before the count of the extents.
          *
          * To achieve this smp_wmb() is used on guarantee the write
-         * order and smp_read_barrier_depends() is guaranteed that we
-         * don't have crazy architectures returning stale data.
-         *
+         * order and smp_rmb() is guaranteed that we don't have crazy
+         * architectures returning stale data.
          */
         mutex_lock(&id_map_mutex);
 
diff --git a/lib/Kconfig b/lib/Kconfig
index 5d4984c505f8..4771fb3f4da4 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -182,6 +182,15 @@ config AUDIT_GENERIC
         depends on AUDIT && !AUDIT_ARCH
         default y
 
+config AUDIT_ARCH_COMPAT_GENERIC
+        bool
+        default n
+
+config AUDIT_COMPAT_GENERIC
+        bool
+        depends on AUDIT_GENERIC && AUDIT_ARCH_COMPAT_GENERIC && COMPAT
+        default y
+
 config RANDOM32_SELFTEST
         bool "PRNG perform self test on init"
         default n
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index dd7f8858188a..140b66a874c1 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -1045,16 +1045,6 @@ config DEBUG_BUGVERBOSE
           of the BUG call as well as the EIP and oops trace.  This aids
           debugging but costs about 70-100K of memory.
 
-config DEBUG_WRITECOUNT
-        bool "Debug filesystem writers count"
-        depends on DEBUG_KERNEL
-        help
-          Enable this to catch wrong use of the writers count in struct
-          vfsmount.  This will increase the size of each file struct by
-          32 bits.
-
-          If unsure, say N.
-
 config DEBUG_LIST
         bool "Debug linked list manipulation"
         depends on DEBUG_KERNEL
diff --git a/lib/Makefile b/lib/Makefile
index 48140e3ba73f..0cd7b68e1382 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -96,6 +96,7 @@ obj-$(CONFIG_TEXTSEARCH_BM) += ts_bm.o
 obj-$(CONFIG_TEXTSEARCH_FSM) += ts_fsm.o
 obj-$(CONFIG_SMP) += percpu_counter.o
 obj-$(CONFIG_AUDIT_GENERIC) += audit.o
+obj-$(CONFIG_AUDIT_COMPAT_GENERIC) += compat_audit.o
 
 obj-$(CONFIG_SWIOTLB) += swiotlb.o
 obj-$(CONFIG_IOMMU_HELPER) += iommu-helper.o
diff --git a/lib/audit.c b/lib/audit.c
index 76bbed4a20e5..1d726a22565b 100644
--- a/lib/audit.c
+++ b/lib/audit.c
@@ -30,11 +30,17 @@ static unsigned signal_class[] = {
 
 int audit_classify_arch(int arch)
 {
-        return 0;
+        if (audit_is_compat(arch))
+                return 1;
+        else
+                return 0;
 }
 
 int audit_classify_syscall(int abi, unsigned syscall)
 {
+        if (audit_is_compat(abi))
+                return audit_classify_compat_syscall(abi, syscall);
+
         switch(syscall) {
 #ifdef __NR_open
         case __NR_open:
@@ -57,6 +63,13 @@ int audit_classify_syscall(int abi, unsigned syscall)
 
 static int __init audit_classes_init(void)
 {
+#ifdef CONFIG_AUDIT_COMPAT_GENERIC
+        audit_register_class(AUDIT_CLASS_WRITE_32, compat_write_class);
+        audit_register_class(AUDIT_CLASS_READ_32, compat_read_class);
+        audit_register_class(AUDIT_CLASS_DIR_WRITE_32, compat_dir_class);
+        audit_register_class(AUDIT_CLASS_CHATTR_32, compat_chattr_class);
+        audit_register_class(AUDIT_CLASS_SIGNAL_32, compat_signal_class);
+#endif
         audit_register_class(AUDIT_CLASS_WRITE, write_class);
         audit_register_class(AUDIT_CLASS_READ, read_class);
         audit_register_class(AUDIT_CLASS_DIR_WRITE, dir_class);
diff --git a/lib/compat_audit.c b/lib/compat_audit.c
new file mode 100644
index 000000000000..873f75b640ab
--- /dev/null
+++ b/lib/compat_audit.c
@@ -0,0 +1,50 @@
+#include <linux/init.h>
+#include <linux/types.h>
+#include <asm/unistd32.h>
+
+unsigned compat_dir_class[] = {
+#include <asm-generic/audit_dir_write.h>
+~0U
+};
+
+unsigned compat_read_class[] = {
+#include <asm-generic/audit_read.h>
+~0U
+};
+
+unsigned compat_write_class[] = {
+#include <asm-generic/audit_write.h>
+~0U
+};
+
+unsigned compat_chattr_class[] = {
+#include <asm-generic/audit_change_attr.h>
+~0U
+};
+
+unsigned compat_signal_class[] = {
+#include <asm-generic/audit_signal.h>
+~0U
+};
+
+int audit_classify_compat_syscall(int abi, unsigned syscall)
+{
+        switch (syscall) {
+#ifdef __NR_open
+        case __NR_open:
+                return 2;
+#endif
+#ifdef __NR_openat
+        case __NR_openat:
+                return 3;
+#endif
+#ifdef __NR_socketcall
+        case __NR_socketcall:
+                return 4;
+#endif
+        case __NR_execve:
+                return 5;
+        default:
+                return 1;
+        }
+}
diff --git a/mm/Makefile b/mm/Makefile
index 9e5aaf92197d..b484452dac57 100644
--- a/mm/Makefile
+++ b/mm/Makefile
@@ -17,7 +17,8 @@ obj-y			:= filemap.o mempool.o oom_kill.o fadvise.o \
                            util.o mmzone.o vmstat.o backing-dev.o \
                            mm_init.o mmu_context.o percpu.o slab_common.o \
                            compaction.o balloon_compaction.o vmacache.o \
-                           interval_tree.o list_lru.o workingset.o $(mmu-y)
+                           interval_tree.o list_lru.o workingset.o \
+                           iov_iter.o $(mmu-y)
 
 obj-y += init-mm.o
 
diff --git a/mm/filemap.c b/mm/filemap.c
index 27ebc0c9571b..a82fbe4c9e8e 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -77,7 +77,7 @@
  *  ->mmap_sem
  *    ->lock_page               (access_process_vm)
  *
- *  ->i_mutex                   (generic_file_buffered_write)
+ *  ->i_mutex                   (generic_perform_write)
  *    ->mmap_sem                (fault_in_pages_readable->do_page_fault)
  *
  *  bdi->wb.list_lock
@@ -1428,7 +1428,8 @@ static void shrink_readahead_size_eio(struct file *filp,
  * do_generic_file_read - generic file read routine
  * @filp:       the file to read
  * @ppos:       current file position
- * @desc:       read_descriptor
+ * @iter:       data destination
+ * @written:    already copied
  *
  * This is a generic file read routine, and uses the
  * mapping->a_ops->readpage() function for the actual low-level stuff.
@@ -1436,8 +1437,8 @@ static void shrink_readahead_size_eio(struct file *filp,
  * This is really ugly. But the goto's actually try to clarify some
  * of the logic when it comes to error handling etc.
  */
-static void do_generic_file_read(struct file *filp, loff_t *ppos,
-                read_descriptor_t *desc)
+static ssize_t do_generic_file_read(struct file *filp, loff_t *ppos,
+                struct iov_iter *iter, ssize_t written)
 {
         struct address_space *mapping = filp->f_mapping;
         struct inode *inode = mapping->host;
@@ -1447,12 +1448,12 @@ static void do_generic_file_read(struct file *filp, loff_t *ppos,
         pgoff_t prev_index;
         unsigned long offset;      /* offset into pagecache page */
         unsigned int prev_offset;
-        int error;
+        int error = 0;
 
         index = *ppos >> PAGE_CACHE_SHIFT;
         prev_index = ra->prev_pos >> PAGE_CACHE_SHIFT;
         prev_offset = ra->prev_pos & (PAGE_CACHE_SIZE-1);
-        last_index = (*ppos + desc->count + PAGE_CACHE_SIZE-1) >> PAGE_CACHE_SHIFT;
+        last_index = (*ppos + iter->count + PAGE_CACHE_SIZE-1) >> PAGE_CACHE_SHIFT;
         offset = *ppos & ~PAGE_CACHE_MASK;
 
         for (;;) {
@@ -1487,7 +1488,7 @@ find_page:
                         if (!page->mapping)
                                 goto page_not_up_to_date_locked;
                         if (!mapping->a_ops->is_partially_uptodate(page,
-                                                                desc, offset))
+                                                        offset, iter->count))
                                 goto page_not_up_to_date_locked;
                         unlock_page(page);
                 }
@@ -1537,24 +1538,23 @@ page_ok:
                 /*
                  * Ok, we have the page, and it's up-to-date, so
                  * now we can copy it to user space...
-                 *
-                 * The file_read_actor routine returns how many bytes were
-                 * actually used..
-                 * NOTE! This may not be the same as how much of a user buffer
-                 * we filled up (we may be padding etc), so we can only update
-                 * "pos" here (the actor routine has to update the user buffer
-                 * pointers and the remaining count).
                  */
-                ret = file_read_actor(desc, page, offset, nr);
+
+                ret = copy_page_to_iter(page, offset, nr, iter);
                 offset += ret;
                 index += offset >> PAGE_CACHE_SHIFT;
                 offset &= ~PAGE_CACHE_MASK;
                 prev_offset = offset;
 
                 page_cache_release(page);
-                if (ret == nr && desc->count)
-                        continue;
-                goto out;
+                written += ret;
+                if (!iov_iter_count(iter))
+                        goto out;
+                if (ret < nr) {
+                        error = -EFAULT;
+                        goto out;
+                }
+                continue;
 
 page_not_up_to_date:
                 /* Get exclusive access to the page ... */
@@ -1589,6 +1589,7 @@ readpage:
                 if (unlikely(error)) {
                         if (error == AOP_TRUNCATED_PAGE) {
                                 page_cache_release(page);
+                                error = 0;
                                 goto find_page;
                         }
                         goto readpage_error;
@@ -1619,7 +1620,6 @@ readpage:
 
 readpage_error:
                 /* UHHUH! A synchronous read error occurred. Report it */
-                desc->error = error;
                 page_cache_release(page);
                 goto out;
 
@@ -1630,16 +1630,17 @@ no_cached_page:
                  */
                 page = page_cache_alloc_cold(mapping);
                 if (!page) {
-                        desc->error = -ENOMEM;
+                        error = -ENOMEM;
                         goto out;
                 }
                 error = add_to_page_cache_lru(page, mapping,
                                                 index, GFP_KERNEL);
                 if (error) {
                         page_cache_release(page);
-                        if (error == -EEXIST)
+                        if (error == -EEXIST) {
+                                error = 0;
                                 goto find_page;
-                        desc->error = error;
+                        }
                         goto out;
                 }
                 goto readpage;
@@ -1652,44 +1653,7 @@ out:
 
         *ppos = ((loff_t)index << PAGE_CACHE_SHIFT) + offset;
         file_accessed(filp);
-}
-
-int file_read_actor(read_descriptor_t *desc, struct page *page,
-                        unsigned long offset, unsigned long size)
-{
-        char *kaddr;
-        unsigned long left, count = desc->count;
-
-        if (size > count)
-                size = count;
-
-        /*
-         * Faults on the destination of a read are common, so do it before
-         * taking the kmap.
-         */
-        if (!fault_in_pages_writeable(desc->arg.buf, size)) {
-                kaddr = kmap_atomic(page);
-                left = __copy_to_user_inatomic(desc->arg.buf,
-                                                kaddr + offset, size);
-                kunmap_atomic(kaddr);
-                if (left == 0)
-                        goto success;
-        }
-
-        /* Do it the slow way */
-        kaddr = kmap(page);
-        left = __copy_to_user(desc->arg.buf, kaddr + offset, size);
-        kunmap(page);
-
-        if (left) {
-                size -= left;
-                desc->error = -EFAULT;
-        }
-success:
-        desc->count = count - size;
-        desc->written += size;
-        desc->arg.buf += size;
-        return size;
+        return written ? written : error;
 }
 
 /*
@@ -1747,14 +1711,15 @@ generic_file_aio_read(struct kiocb *iocb, const struct iovec *iov,
 {
         struct file *filp = iocb->ki_filp;
         ssize_t retval;
-        unsigned long seg = 0;
         size_t count;
         loff_t *ppos = &iocb->ki_pos;
+        struct iov_iter i;
 
         count = 0;
         retval = generic_segment_checks(iov, &nr_segs, &count, VERIFY_WRITE);
         if (retval)
                 return retval;
+        iov_iter_init(&i, iov, nr_segs, count, 0);
 
         /* coalesce the iovecs and go direct-to-BIO for O_DIRECT */
         if (filp->f_flags & O_DIRECT) {
@@ -1776,6 +1741,11 @@ generic_file_aio_read(struct kiocb *iocb, const struct iovec *iov,
                 if (retval > 0) {
                         *ppos = pos + retval;
                         count -= retval;
+                        /*
+                         * If we did a short DIO read we need to skip the
+                         * section of the iov that we've already read data into.
+                         */
+                        iov_iter_advance(&i, retval);
                 }
 
                 /*
@@ -1792,39 +1762,7 @@ generic_file_aio_read(struct kiocb *iocb, const struct iovec *iov,
                 }
         }
 
-        count = retval;
-        for (seg = 0; seg < nr_segs; seg++) {
-                read_descriptor_t desc;
-                loff_t offset = 0;
-
-                /*
-                 * If we did a short DIO read we need to skip the section of the
-                 * iov that we've already read data into.
-                 */
-                if (count) {
-                        if (count > iov[seg].iov_len) {
-                                count -= iov[seg].iov_len;
-                                continue;
-                        }
-                        offset = count;
-                        count = 0;
-                }
-
-                desc.written = 0;
-                desc.arg.buf = iov[seg].iov_base + offset;
-                desc.count = iov[seg].iov_len - offset;
-                if (desc.count == 0)
-                        continue;
-                desc.error = 0;
-                do_generic_file_read(filp, ppos, &desc);
-                retval += desc.written;
-                if (desc.error) {
-                        retval = retval ?: desc.error;
-                        break;
-                }
-                if (desc.count > 0)
-                        break;
-        }
+        retval = do_generic_file_read(filp, ppos, &i, retval);
 out:
         return retval;
 }
@@ -2335,150 +2273,6 @@ struct page *read_cache_page_gfp(struct address_space *mapping,
 }
 EXPORT_SYMBOL(read_cache_page_gfp);
 
-static size_t __iovec_copy_from_user_inatomic(char *vaddr,
-                        const struct iovec *iov, size_t base, size_t bytes)
-{
-        size_t copied = 0, left = 0;
-
-        while (bytes) {
-                char __user *buf = iov->iov_base + base;
-                int copy = min(bytes, iov->iov_len - base);
-
-                base = 0;
-                left = __copy_from_user_inatomic(vaddr, buf, copy);
-                copied += copy;
-                bytes -= copy;
-                vaddr += copy;
-                iov++;
-
-                if (unlikely(left))
-                        break;
-        }
-        return copied - left;
-}
-
-/*
- * Copy as much as we can into the page and return the number of bytes which
- * were successfully copied.  If a fault is encountered then return the number of
- * bytes which were copied.
- */
-size_t iov_iter_copy_from_user_atomic(struct page *page,
-                struct iov_iter *i, unsigned long offset, size_t bytes)
-{
-        char *kaddr;
-        size_t copied;
-
-        BUG_ON(!in_atomic());
-        kaddr = kmap_atomic(page);
-        if (likely(i->nr_segs == 1)) {
-                int left;
-                char __user *buf = i->iov->iov_base + i->iov_offset;
-                left = __copy_from_user_inatomic(kaddr + offset, buf, bytes);
-                copied = bytes - left;
-        } else {
-                copied = __iovec_copy_from_user_inatomic(kaddr + offset,
-                                                i->iov, i->iov_offset, bytes);
-        }
-        kunmap_atomic(kaddr);
-
-        return copied;
-}
-EXPORT_SYMBOL(iov_iter_copy_from_user_atomic);
-
-/*
- * This has the same sideeffects and return value as
- * iov_iter_copy_from_user_atomic().
- * The difference is that it attempts to resolve faults.
- * Page must not be locked.
- */
-size_t iov_iter_copy_from_user(struct page *page,
-                struct iov_iter *i, unsigned long offset, size_t bytes)
-{
-        char *kaddr;
-        size_t copied;
-
-        kaddr = kmap(page);
-        if (likely(i->nr_segs == 1)) {
-                int left;
-                char __user *buf = i->iov->iov_base + i->iov_offset;
-                left = __copy_from_user(kaddr + offset, buf, bytes);
-                copied = bytes - left;
-        } else {
-                copied = __iovec_copy_from_user_inatomic(kaddr + offset,
-                                                i->iov, i->iov_offset, bytes);
-        }
-        kunmap(page);
-        return copied;
-}
-EXPORT_SYMBOL(iov_iter_copy_from_user);
-
-void iov_iter_advance(struct iov_iter *i, size_t bytes)
-{
-        BUG_ON(i->count < bytes);
-
-        if (likely(i->nr_segs == 1)) {
-                i->iov_offset += bytes;
-                i->count -= bytes;
-        } else {
-                const struct iovec *iov = i->iov;
-                size_t base = i->iov_offset;
-                unsigned long nr_segs = i->nr_segs;
-
-                /*
-                 * The !iov->iov_len check ensures we skip over unlikely
-                 * zero-length segments (without overruning the iovec).
-                 */
-                while (bytes || unlikely(i->count && !iov->iov_len)) {
-                        int copy;
-
-                        copy = min(bytes, iov->iov_len - base);
-                        BUG_ON(!i->count || i->count < copy);
-                        i->count -= copy;
-                        bytes -= copy;
-                        base += copy;
-                        if (iov->iov_len == base) {
-                                iov++;
-                                nr_segs--;
-                                base = 0;
-                        }
-                }
-                i->iov = iov;
-                i->iov_offset = base;
-                i->nr_segs = nr_segs;
-        }
-}
-EXPORT_SYMBOL(iov_iter_advance);
-
-/*
- * Fault in the first iovec of the given iov_iter, to a maximum length
- * of bytes. Returns 0 on success, or non-zero if the memory could not be
- * accessed (ie. because it is an invalid address).
- *
- * writev-intensive code may want this to prefault several iovecs -- that
- * would be possible (callers must not rely on the fact that _only_ the
- * first iovec will be faulted with the current implementation).
- */
-int iov_iter_fault_in_readable(struct iov_iter *i, size_t bytes)
-{
-        char __user *buf = i->iov->iov_base + i->iov_offset;
-        bytes = min(bytes, i->iov->iov_len - i->iov_offset);
-        return fault_in_pages_readable(buf, bytes);
-}
-EXPORT_SYMBOL(iov_iter_fault_in_readable);
-
-/*
- * Return the count of just the current iov_iter segment.
- */
-size_t iov_iter_single_seg_count(const struct iov_iter *i)
-{
-        const struct iovec *iov = i->iov;
-        if (i->nr_segs == 1)
-                return i->count;
-        else
-                return min(i->count, iov->iov_len - i->iov_offset);
-}
-EXPORT_SYMBOL(iov_iter_single_seg_count);
-
 /*
  * Performs necessary checks before doing a write
  *
@@ -2585,7 +2379,7 @@ EXPORT_SYMBOL(pagecache_write_end);
 
 ssize_t
 generic_file_direct_write(struct kiocb *iocb, const struct iovec *iov,
-                unsigned long *nr_segs, loff_t pos, loff_t *ppos,
+                unsigned long *nr_segs, loff_t pos,
                 size_t count, size_t ocount)
 {
         struct file     *file = iocb->ki_filp;
@@ -2646,7 +2440,7 @@ generic_file_direct_write(struct kiocb *iocb, const struct iovec *iov,
                         i_size_write(inode, pos);
                         mark_inode_dirty(inode);
                 }
-                *ppos = pos;
+                iocb->ki_pos = pos;
         }
 out:
         return written;
@@ -2692,7 +2486,7 @@ found:
 }
 EXPORT_SYMBOL(grab_cache_page_write_begin);
 
-static ssize_t generic_perform_write(struct file *file,
+ssize_t generic_perform_write(struct file *file,
                                 struct iov_iter *i, loff_t pos)
 {
         struct address_space *mapping = file->f_mapping;
@@ -2742,9 +2536,7 @@ again:
                 if (mapping_writably_mapped(mapping))
                         flush_dcache_page(page);
 
-                pagefault_disable();
                 copied = iov_iter_copy_from_user_atomic(page, i, offset, bytes);
-                pagefault_enable();
                 flush_dcache_page(page);
 
                 mark_page_accessed(page);
@@ -2782,27 +2574,7 @@ again:
 
         return written ? written : status;
 }
-
-ssize_t
-generic_file_buffered_write(struct kiocb *iocb, const struct iovec *iov,
-                unsigned long nr_segs, loff_t pos, loff_t *ppos,
-                size_t count, ssize_t written)
-{
-        struct file *file = iocb->ki_filp;
-        ssize_t status;
-        struct iov_iter i;
-
-        iov_iter_init(&i, iov, nr_segs, count, written);
-        status = generic_perform_write(file, &i, pos);
-
-        if (likely(status >= 0)) {
-                written += status;
-                *ppos = pos + status;
-        }
-        
-        return written ? written : status;
-}
-EXPORT_SYMBOL(generic_file_buffered_write);
+EXPORT_SYMBOL(generic_perform_write);
 
 /**
  * __generic_file_aio_write - write data to a file
@@ -2824,16 +2596,18 @@ EXPORT_SYMBOL(generic_file_buffered_write);
  * avoid syncing under i_mutex.
  */
 ssize_t __generic_file_aio_write(struct kiocb *iocb, const struct iovec *iov,
-                                 unsigned long nr_segs, loff_t *ppos)
+                                 unsigned long nr_segs)
 {
         struct file *file = iocb->ki_filp;
         struct address_space * mapping = file->f_mapping;
         size_t ocount;          /* original count */
         size_t count;           /* after file limit checks */
         struct inode    *inode = mapping->host;
-        loff_t          pos;
-        ssize_t         written;
+        loff_t          pos = iocb->ki_pos;
+        ssize_t         written = 0;
         ssize_t         err;
+        ssize_t         status;
+        struct iov_iter from;
 
         ocount = 0;
         err = generic_segment_checks(iov, &nr_segs, &ocount, VERIFY_READ);
@@ -2841,12 +2615,9 @@ ssize_t __generic_file_aio_write(struct kiocb *iocb, const struct iovec *iov,
                 return err;
 
         count = ocount;
-        pos = *ppos;
 
         /* We can write back this queue in page reclaim */
         current->backing_dev_info = mapping->backing_dev_info;
-        written = 0;
-
         err = generic_write_checks(file, &pos, &count, S_ISBLK(inode->i_mode));
         if (err)
                 goto out;
@@ -2862,45 +2633,47 @@ ssize_t __generic_file_aio_write(struct kiocb *iocb, const struct iovec *iov,
         if (err)
                 goto out;
 
+        iov_iter_init(&from, iov, nr_segs, count, 0);
+
         /* coalesce the iovecs and go direct-to-BIO for O_DIRECT */
         if (unlikely(file->f_flags & O_DIRECT)) {
                 loff_t endbyte;
-                ssize_t written_buffered;
 
-                written = generic_file_direct_write(iocb, iov, &nr_segs, pos,
-                                                        ppos, count, ocount);
+                written = generic_file_direct_write(iocb, iov, &from.nr_segs, pos,
+                                                        count, ocount);
                 if (written < 0 || written == count)
                         goto out;
+                iov_iter_advance(&from, written);
+
                 /*
                  * direct-io write to a hole: fall through to buffered I/O
                  * for completing the rest of the request.
                  */
                 pos += written;
                 count -= written;
-                written_buffered = generic_file_buffered_write(iocb, iov,
-                                                nr_segs, pos, ppos, count,
-                                                written);
+
+                status = generic_perform_write(file, &from, pos);
                 /*
-                 * If generic_file_buffered_write() retuned a synchronous error
+                 * If generic_perform_write() returned a synchronous error
                  * then we want to return the number of bytes which were
                  * direct-written, or the error code if that was zero.  Note
                  * that this differs from normal direct-io semantics, which
                  * will return -EFOO even if some bytes were written.
                  */
-                if (written_buffered < 0) {
-                        err = written_buffered;
+                if (unlikely(status < 0) && !written) {
+                        err = status;
                         goto out;
                 }
-
+                iocb->ki_pos = pos + status;
                 /*
                  * We need to ensure that the page cache pages are written to
                  * disk and invalidated to preserve the expected O_DIRECT
                  * semantics.
                  */
-                endbyte = pos + written_buffered - written - 1;
+                endbyte = pos + status - 1;
                 err = filemap_write_and_wait_range(file->f_mapping, pos, endbyte);
                 if (err == 0) {
-                        written = written_buffered;
+                        written += status;
                         invalidate_mapping_pages(mapping,
                                                  pos >> PAGE_CACHE_SHIFT,
                                                  endbyte >> PAGE_CACHE_SHIFT);
@@ -2911,8 +2684,9 @@ ssize_t __generic_file_aio_write(struct kiocb *iocb, const struct iovec *iov,
                          */
                 }
         } else {
-                written = generic_file_buffered_write(iocb, iov, nr_segs,
-                                pos, ppos, count, written);
+                written = generic_perform_write(file, &from, pos);
+                if (likely(written >= 0))
+                        iocb->ki_pos = pos + written;
         }
 out:
         current->backing_dev_info = NULL;
@@ -2941,7 +2715,7 @@ ssize_t generic_file_aio_write(struct kiocb *iocb, const struct iovec *iov,
         BUG_ON(iocb->ki_pos != pos);
 
         mutex_lock(&inode->i_mutex);
-        ret = __generic_file_aio_write(iocb, iov, nr_segs, &iocb->ki_pos);
+        ret = __generic_file_aio_write(iocb, iov, nr_segs);
         mutex_unlock(&inode->i_mutex);
 
         if (ret > 0) {
diff --git a/mm/iov_iter.c b/mm/iov_iter.c
new file mode 100644
index 000000000000..10e46cd721de
--- /dev/null
+++ b/mm/iov_iter.c
@@ -0,0 +1,224 @@
+#include <linux/export.h>
+#include <linux/uio.h>
+#include <linux/pagemap.h>
+
+size_t copy_page_to_iter(struct page *page, size_t offset, size_t bytes,
+                         struct iov_iter *i)
+{
+        size_t skip, copy, left, wanted;
+        const struct iovec *iov;
+        char __user *buf;
+        void *kaddr, *from;
+
+        if (unlikely(bytes > i->count))
+                bytes = i->count;
+
+        if (unlikely(!bytes))
+                return 0;
+
+        wanted = bytes;
+        iov = i->iov;
+        skip = i->iov_offset;
+        buf = iov->iov_base + skip;
+        copy = min(bytes, iov->iov_len - skip);
+
+        if (!fault_in_pages_writeable(buf, copy)) {
+                kaddr = kmap_atomic(page);
+                from = kaddr + offset;
+
+                /* first chunk, usually the only one */
+                left = __copy_to_user_inatomic(buf, from, copy);
+                copy -= left;
+                skip += copy;
+                from += copy;
+                bytes -= copy;
+
+                while (unlikely(!left && bytes)) {
+                        iov++;
+                        buf = iov->iov_base;
+                        copy = min(bytes, iov->iov_len);
+                        left = __copy_to_user_inatomic(buf, from, copy);
+                        copy -= left;
+                        skip = copy;
+                        from += copy;
+                        bytes -= copy;
+                }
+                if (likely(!bytes)) {
+                        kunmap_atomic(kaddr);
+                        goto done;
+                }
+                offset = from - kaddr;
+                buf += copy;
+                kunmap_atomic(kaddr);
+                copy = min(bytes, iov->iov_len - skip);
+        }
+        /* Too bad - revert to non-atomic kmap */
+        kaddr = kmap(page);
+        from = kaddr + offset;
+        left = __copy_to_user(buf, from, copy);
+        copy -= left;
+        skip += copy;
+        from += copy;
+        bytes -= copy;
+        while (unlikely(!left && bytes)) {
+                iov++;
+                buf = iov->iov_base;
+                copy = min(bytes, iov->iov_len);
+                left = __copy_to_user(buf, from, copy);
+                copy -= left;
+                skip = copy;
+                from += copy;
+                bytes -= copy;
+        }
+        kunmap(page);
+done:
+        i->count -= wanted - bytes;
+        i->nr_segs -= iov - i->iov;
+        i->iov = iov;
+        i->iov_offset = skip;
+        return wanted - bytes;
+}
+EXPORT_SYMBOL(copy_page_to_iter);
+
+static size_t __iovec_copy_from_user_inatomic(char *vaddr,
+                        const struct iovec *iov, size_t base, size_t bytes)
+{
+        size_t copied = 0, left = 0;
+
+        while (bytes) {
+                char __user *buf = iov->iov_base + base;
+                int copy = min(bytes, iov->iov_len - base);
+
+                base = 0;
+                left = __copy_from_user_inatomic(vaddr, buf, copy);
+                copied += copy;
+                bytes -= copy;
+                vaddr += copy;
+                iov++;
+
+                if (unlikely(left))
+                        break;
+        }
+        return copied - left;
+}
+
+/*
+ * Copy as much as we can into the page and return the number of bytes which
+ * were successfully copied.  If a fault is encountered then return the number of
+ * bytes which were copied.
+ */
+size_t iov_iter_copy_from_user_atomic(struct page *page,
+                struct iov_iter *i, unsigned long offset, size_t bytes)
+{
+        char *kaddr;
+        size_t copied;
+
+        kaddr = kmap_atomic(page);
+        if (likely(i->nr_segs == 1)) {
+                int left;
+                char __user *buf = i->iov->iov_base + i->iov_offset;
+                left = __copy_from_user_inatomic(kaddr + offset, buf, bytes);
+                copied = bytes - left;
+        } else {
+                copied = __iovec_copy_from_user_inatomic(kaddr + offset,
+                                                i->iov, i->iov_offset, bytes);
+        }
+        kunmap_atomic(kaddr);
+
+        return copied;
+}
+EXPORT_SYMBOL(iov_iter_copy_from_user_atomic);
+
+/*
+ * This has the same sideeffects and return value as
+ * iov_iter_copy_from_user_atomic().
+ * The difference is that it attempts to resolve faults.
+ * Page must not be locked.
+ */
+size_t iov_iter_copy_from_user(struct page *page,
+                struct iov_iter *i, unsigned long offset, size_t bytes)
+{
+        char *kaddr;
+        size_t copied;
+
+        kaddr = kmap(page);
+        if (likely(i->nr_segs == 1)) {
+                int left;
+                char __user *buf = i->iov->iov_base + i->iov_offset;
+                left = __copy_from_user(kaddr + offset, buf, bytes);
+                copied = bytes - left;
+        } else {
+                copied = __iovec_copy_from_user_inatomic(kaddr + offset,
+                                                i->iov, i->iov_offset, bytes);
+        }
+        kunmap(page);
+        return copied;
+}
+EXPORT_SYMBOL(iov_iter_copy_from_user);
+
+void iov_iter_advance(struct iov_iter *i, size_t bytes)
+{
+        BUG_ON(i->count < bytes);
+
+        if (likely(i->nr_segs == 1)) {
+                i->iov_offset += bytes;
+                i->count -= bytes;
+        } else {
+                const struct iovec *iov = i->iov;
+                size_t base = i->iov_offset;
+                unsigned long nr_segs = i->nr_segs;
+
+                /*
+                 * The !iov->iov_len check ensures we skip over unlikely
+                 * zero-length segments (without overruning the iovec).
+                 */
+                while (bytes || unlikely(i->count && !iov->iov_len)) {
+                        int copy;
+
+                        copy = min(bytes, iov->iov_len - base);
+                        BUG_ON(!i->count || i->count < copy);
+                        i->count -= copy;
+                        bytes -= copy;
+                        base += copy;
+                        if (iov->iov_len == base) {
+                                iov++;
+                                nr_segs--;
+                                base = 0;
+                        }
+                }
+                i->iov = iov;
+                i->iov_offset = base;
+                i->nr_segs = nr_segs;
+        }
+}
+EXPORT_SYMBOL(iov_iter_advance);
+
+/*
+ * Fault in the first iovec of the given iov_iter, to a maximum length
+ * of bytes. Returns 0 on success, or non-zero if the memory could not be
+ * accessed (ie. because it is an invalid address).
+ *
+ * writev-intensive code may want this to prefault several iovecs -- that
+ * would be possible (callers must not rely on the fact that _only_ the
+ * first iovec will be faulted with the current implementation).
+ */
+int iov_iter_fault_in_readable(struct iov_iter *i, size_t bytes)
+{
+        char __user *buf = i->iov->iov_base + i->iov_offset;
+        bytes = min(bytes, i->iov->iov_len - i->iov_offset);
+        return fault_in_pages_readable(buf, bytes);
+}
+EXPORT_SYMBOL(iov_iter_fault_in_readable);
+
+/*
+ * Return the count of just the current iov_iter segment.
+ */
+size_t iov_iter_single_seg_count(const struct iov_iter *i)
+{
+        const struct iovec *iov = i->iov;
+        if (i->nr_segs == 1)
+                return i->count;
+        else
+                return min(i->count, iov->iov_len - i->iov_offset);
+}
+EXPORT_SYMBOL(iov_iter_single_seg_count);
diff --git a/mm/process_vm_access.c b/mm/process_vm_access.c
index cb79065c19e5..8505c9262b35 100644
--- a/mm/process_vm_access.c
+++ b/mm/process_vm_access.c
@@ -23,129 +23,44 @@
 
 /**
  * process_vm_rw_pages - read/write pages from task specified
- * @task: task to read/write from
- * @mm: mm for task
- * @process_pages: struct pages area that can store at least
- *  nr_pages_to_copy struct page pointers
- * @pa: address of page in task to start copying from/to
+ * @pages: array of pointers to pages we want to copy
  * @start_offset: offset in page to start copying from/to
  * @len: number of bytes to copy
- * @lvec: iovec array specifying where to copy to/from
- * @lvec_cnt: number of elements in iovec array
- * @lvec_current: index in iovec array we are up to
- * @lvec_offset: offset in bytes from current iovec iov_base we are up to
+ * @iter: where to copy to/from locally
  * @vm_write: 0 means copy from, 1 means copy to
- * @nr_pages_to_copy: number of pages to copy
- * @bytes_copied: returns number of bytes successfully copied
  * Returns 0 on success, error code otherwise
  */
-static int process_vm_rw_pages(struct task_struct *task,
-                               struct mm_struct *mm,
-                               struct page **process_pages,
-                               unsigned long pa,
-                               unsigned long start_offset,
-                               unsigned long len,
-                               const struct iovec *lvec,
-                               unsigned long lvec_cnt,
-                               unsigned long *lvec_current,
-                               size_t *lvec_offset,
-                               int vm_write,
-                               unsigned int nr_pages_to_copy,
-                               ssize_t *bytes_copied)
+static int process_vm_rw_pages(struct page **pages,
+                               unsigned offset,
+                               size_t len,
+                               struct iov_iter *iter,
+                               int vm_write)
 {
-        int pages_pinned;
-        void *target_kaddr;
-        int pgs_copied = 0;
-        int j;
-        int ret;
-        ssize_t bytes_to_copy;
-        ssize_t rc = 0;
-
-        *bytes_copied = 0;
-
-        /* Get the pages we're interested in */
-        down_read(&mm->mmap_sem);
-        pages_pinned = get_user_pages(task, mm, pa,
-                                      nr_pages_to_copy,
-                                      vm_write, 0, process_pages, NULL);
-        up_read(&mm->mmap_sem);
-
-        if (pages_pinned != nr_pages_to_copy) {
-                rc = -EFAULT;
-                goto end;
-        }
-
         /* Do the copy for each page */
-        for (pgs_copied = 0;
-             (pgs_copied < nr_pages_to_copy) && (*lvec_current < lvec_cnt);
-             pgs_copied++) {
-                /* Make sure we have a non zero length iovec */
-                while (*lvec_current < lvec_cnt
-                       && lvec[*lvec_current].iov_len == 0)
-                        (*lvec_current)++;
-                if (*lvec_current == lvec_cnt)
-                        break;
-
-                /*
-                 * Will copy smallest of:
-                 * - bytes remaining in page
-                 * - bytes remaining in destination iovec
-                 */
-                bytes_to_copy = min_t(ssize_t, PAGE_SIZE - start_offset,
-                                      len - *bytes_copied);
-                bytes_to_copy = min_t(ssize_t, bytes_to_copy,
-                                      lvec[*lvec_current].iov_len
-                                      - *lvec_offset);
-
-                target_kaddr = kmap(process_pages[pgs_copied]) + start_offset;
-
-                if (vm_write)
-                        ret = copy_from_user(target_kaddr,
-                                             lvec[*lvec_current].iov_base
-                                             + *lvec_offset,
-                                             bytes_to_copy);
-                else
-                        ret = copy_to_user(lvec[*lvec_current].iov_base
-                                           + *lvec_offset,
-                                           target_kaddr, bytes_to_copy);
-                kunmap(process_pages[pgs_copied]);
-                if (ret) {
-                        *bytes_copied += bytes_to_copy - ret;
-                        pgs_copied++;
-                        rc = -EFAULT;
-                        goto end;
-                }
-                *bytes_copied += bytes_to_copy;
-                *lvec_offset += bytes_to_copy;
-                if (*lvec_offset == lvec[*lvec_current].iov_len) {
-                        /*
-                         * Need to copy remaining part of page into the
-                         * next iovec if there are any bytes left in page
-                         */
-                        (*lvec_current)++;
-                        *lvec_offset = 0;
-                        start_offset = (start_offset + bytes_to_copy)
-                                % PAGE_SIZE;
-                        if (start_offset)
-                                pgs_copied--;
+        while (len && iov_iter_count(iter)) {
+                struct page *page = *pages++;
+                size_t copy = PAGE_SIZE - offset;
+                size_t copied;
+
+                if (copy > len)
+                        copy = len;
+
+                if (vm_write) {
+                        if (copy > iov_iter_count(iter))
+                                copy = iov_iter_count(iter);
+                        copied = iov_iter_copy_from_user(page, iter,
+                                        offset, copy);
+                        iov_iter_advance(iter, copied);
+                        set_page_dirty_lock(page);
                 } else {
-                        start_offset = 0;
-                }
-        }
-
-end:
-        if (vm_write) {
-                for (j = 0; j < pages_pinned; j++) {
-                        if (j < pgs_copied)
-                                set_page_dirty_lock(process_pages[j]);
-                        put_page(process_pages[j]);
+                        copied = copy_page_to_iter(page, offset, copy, iter);
                 }
-        } else {
-                for (j = 0; j < pages_pinned; j++)
-                        put_page(process_pages[j]);
+                len -= copied;
+                if (copied < copy && iov_iter_count(iter))
+                        return -EFAULT;
+                offset = 0;
         }
-
-        return rc;
+        return 0;
 }
 
 /* Maximum number of pages kmalloc'd to hold struct page's during copy */
@@ -155,67 +70,60 @@ end:
  * process_vm_rw_single_vec - read/write pages from task specified
  * @addr: start memory address of target process
  * @len: size of area to copy to/from
- * @lvec: iovec array specifying where to copy to/from locally
- * @lvec_cnt: number of elements in iovec array
- * @lvec_current: index in iovec array we are up to
- * @lvec_offset: offset in bytes from current iovec iov_base we are up to
+ * @iter: where to copy to/from locally
  * @process_pages: struct pages area that can store at least
  *  nr_pages_to_copy struct page pointers
  * @mm: mm for task
  * @task: task to read/write from
  * @vm_write: 0 means copy from, 1 means copy to
- * @bytes_copied: returns number of bytes successfully copied
  * Returns 0 on success or on failure error code
  */
 static int process_vm_rw_single_vec(unsigned long addr,
                                     unsigned long len,
-                                    const struct iovec *lvec,
-                                    unsigned long lvec_cnt,
-                                    unsigned long *lvec_current,
-                                    size_t *lvec_offset,
+                                    struct iov_iter *iter,
                                     struct page **process_pages,
                                     struct mm_struct *mm,
                                     struct task_struct *task,
-                                    int vm_write,
-                                    ssize_t *bytes_copied)
+                                    int vm_write)
 {
         unsigned long pa = addr & PAGE_MASK;
         unsigned long start_offset = addr - pa;
         unsigned long nr_pages;
-        ssize_t bytes_copied_loop;
         ssize_t rc = 0;
-        unsigned long nr_pages_copied = 0;
-        unsigned long nr_pages_to_copy;
         unsigned long max_pages_per_loop = PVM_MAX_KMALLOC_PAGES
                 / sizeof(struct pages *);
 
-        *bytes_copied = 0;
-
         /* Work out address and page range required */
         if (len == 0)
                 return 0;
         nr_pages = (addr + len - 1) / PAGE_SIZE - addr / PAGE_SIZE + 1;
 
-        while ((nr_pages_copied < nr_pages) && (*lvec_current < lvec_cnt)) {
-                nr_pages_to_copy = min(nr_pages - nr_pages_copied,
-                                       max_pages_per_loop);
+        while (!rc && nr_pages && iov_iter_count(iter)) {
+                int pages = min(nr_pages, max_pages_per_loop);
+                size_t bytes;
 
-                rc = process_vm_rw_pages(task, mm, process_pages, pa,
-                                         start_offset, len,
-                                         lvec, lvec_cnt,
-                                         lvec_current, lvec_offset,
-                                         vm_write, nr_pages_to_copy,
-                                         &bytes_copied_loop);
-                start_offset = 0;
-                *bytes_copied += bytes_copied_loop;
+                /* Get the pages we're interested in */
+                down_read(&mm->mmap_sem);
+                pages = get_user_pages(task, mm, pa, pages,
+                                      vm_write, 0, process_pages, NULL);
+                up_read(&mm->mmap_sem);
 
-                if (rc < 0) {
-                        return rc;
-                } else {
-                        len -= bytes_copied_loop;
-                        nr_pages_copied += nr_pages_to_copy;
-                        pa += nr_pages_to_copy * PAGE_SIZE;
-                }
+                if (pages <= 0)
+                        return -EFAULT;
+
+                bytes = pages * PAGE_SIZE - start_offset;
+                if (bytes > len)
+                        bytes = len;
+
+                rc = process_vm_rw_pages(process_pages,
+                                         start_offset, bytes, iter,
+                                         vm_write);
+                len -= bytes;
+                start_offset = 0;
+                nr_pages -= pages;
+                pa += pages * PAGE_SIZE;
+                while (pages)
+                        put_page(process_pages[--pages]);
         }
 
         return rc;
@@ -228,8 +136,7 @@ static int process_vm_rw_single_vec(unsigned long addr,
 /**
  * process_vm_rw_core - core of reading/writing pages from task specified
  * @pid: PID of process to read/write from/to
- * @lvec: iovec array specifying where to copy to/from locally
- * @liovcnt: size of lvec array
+ * @iter: where to copy to/from locally
  * @rvec: iovec array specifying where to copy to/from in the other process
  * @riovcnt: size of rvec array
  * @flags: currently unused
@@ -238,8 +145,7 @@ static int process_vm_rw_single_vec(unsigned long addr,
  *  return less bytes than expected if an error occurs during the copying
  *  process.
  */
-static ssize_t process_vm_rw_core(pid_t pid, const struct iovec *lvec,
-                                  unsigned long liovcnt,
+static ssize_t process_vm_rw_core(pid_t pid, struct iov_iter *iter,
                                   const struct iovec *rvec,
                                   unsigned long riovcnt,
                                   unsigned long flags, int vm_write)
@@ -250,13 +156,10 @@ static ssize_t process_vm_rw_core(pid_t pid, const struct iovec *lvec,
         struct mm_struct *mm;
         unsigned long i;
         ssize_t rc = 0;
-        ssize_t bytes_copied_loop;
-        ssize_t bytes_copied = 0;
         unsigned long nr_pages = 0;
         unsigned long nr_pages_iov;
-        unsigned long iov_l_curr_idx = 0;
-        size_t iov_l_curr_offset = 0;
         ssize_t iov_len;
+        size_t total_len = iov_iter_count(iter);
 
         /*
          * Work out how many pages of struct pages we're going to need
@@ -310,24 +213,20 @@ static ssize_t process_vm_rw_core(pid_t pid, const struct iovec *lvec,
                 goto put_task_struct;
         }
 
-        for (i = 0; i < riovcnt && iov_l_curr_idx < liovcnt; i++) {
+        for (i = 0; i < riovcnt && iov_iter_count(iter) && !rc; i++)
                 rc = process_vm_rw_single_vec(
                         (unsigned long)rvec[i].iov_base, rvec[i].iov_len,
-                        lvec, liovcnt, &iov_l_curr_idx, &iov_l_curr_offset,
-                        process_pages, mm, task, vm_write, &bytes_copied_loop);
-                bytes_copied += bytes_copied_loop;
-                if (rc != 0) {
-                        /* If we have managed to copy any data at all then
-                           we return the number of bytes copied. Otherwise
-                           we return the error code */
-                        if (bytes_copied)
-                                rc = bytes_copied;
-                        goto put_mm;
-                }
-        }
+                        iter, process_pages, mm, task, vm_write);
+
+        /* copied = space before - space after */
+        total_len -= iov_iter_count(iter);
+
+        /* If we have managed to copy any data at all then
+           we return the number of bytes copied. Otherwise
+           we return the error code */
+        if (total_len)
+                rc = total_len;
 
-        rc = bytes_copied;
-put_mm:
         mmput(mm);
 
 put_task_struct:
@@ -363,6 +262,7 @@ static ssize_t process_vm_rw(pid_t pid,
         struct iovec iovstack_r[UIO_FASTIOV];
         struct iovec *iov_l = iovstack_l;
         struct iovec *iov_r = iovstack_r;
+        struct iov_iter iter;
         ssize_t rc;
 
         if (flags != 0)
@@ -378,13 +278,14 @@ static ssize_t process_vm_rw(pid_t pid,
         if (rc <= 0)
                 goto free_iovecs;
 
+        iov_iter_init(&iter, iov_l, liovcnt, rc, 0);
+
         rc = rw_copy_check_uvector(CHECK_IOVEC_ONLY, rvec, riovcnt, UIO_FASTIOV,
                                    iovstack_r, &iov_r);
         if (rc <= 0)
                 goto free_iovecs;
 
-        rc = process_vm_rw_core(pid, iov_l, liovcnt, iov_r, riovcnt, flags,
-                                vm_write);
+        rc = process_vm_rw_core(pid, &iter, iov_r, riovcnt, flags, vm_write);
 
 free_iovecs:
         if (iov_r != iovstack_r)
@@ -424,6 +325,7 @@ compat_process_vm_rw(compat_pid_t pid,
         struct iovec iovstack_r[UIO_FASTIOV];
         struct iovec *iov_l = iovstack_l;
         struct iovec *iov_r = iovstack_r;
+        struct iov_iter iter;
         ssize_t rc = -EFAULT;
 
         if (flags != 0)
@@ -439,14 +341,14 @@ compat_process_vm_rw(compat_pid_t pid,
                                                   &iov_l);
         if (rc <= 0)
                 goto free_iovecs;
+        iov_iter_init(&iter, iov_l, liovcnt, rc, 0);
         rc = compat_rw_copy_check_uvector(CHECK_IOVEC_ONLY, rvec, riovcnt,
                                           UIO_FASTIOV, iovstack_r,
                                           &iov_r);
         if (rc <= 0)
                 goto free_iovecs;
 
-        rc = process_vm_rw_core(pid, iov_l, liovcnt, iov_r, riovcnt, flags,
-                           vm_write);
+        rc = process_vm_rw_core(pid, &iter, iov_r, riovcnt, flags, vm_write);
 
 free_iovecs:
         if (iov_r != iovstack_r)
diff --git a/mm/shmem.c b/mm/shmem.c
index 70273f8df586..9f70e02111c6 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -1402,13 +1402,25 @@ shmem_write_end(struct file *file, struct address_space *mapping,
         return copied;
 }
 
-static void do_shmem_file_read(struct file *filp, loff_t *ppos, read_descriptor_t *desc, read_actor_t actor)
+static ssize_t shmem_file_aio_read(struct kiocb *iocb,
+                const struct iovec *iov, unsigned long nr_segs, loff_t pos)
 {
-        struct inode *inode = file_inode(filp);
+        struct file *file = iocb->ki_filp;
+        struct inode *inode = file_inode(file);
         struct address_space *mapping = inode->i_mapping;
         pgoff_t index;
         unsigned long offset;
         enum sgp_type sgp = SGP_READ;
+        int error = 0;
+        ssize_t retval;
+        size_t count;
+        loff_t *ppos = &iocb->ki_pos;
+        struct iov_iter iter;
+
+        retval = generic_segment_checks(iov, &nr_segs, &count, VERIFY_WRITE);
+        if (retval)
+                return retval;
+        iov_iter_init(&iter, iov, nr_segs, count, 0);
 
         /*
          * Might this read be for a stacking filesystem?  Then when reading
@@ -1436,10 +1448,10 @@ static void do_shmem_file_read(struct file *filp, loff_t *ppos, read_descriptor_
                                 break;
                 }
 
-                desc->error = shmem_getpage(inode, index, &page, sgp, NULL);
-                if (desc->error) {
-                        if (desc->error == -EINVAL)
-                                desc->error = 0;
+                error = shmem_getpage(inode, index, &page, sgp, NULL);
+                if (error) {
+                        if (error == -EINVAL)
+                                error = 0;
                         break;
                 }
                 if (page)
@@ -1483,61 +1495,26 @@ static void do_shmem_file_read(struct file *filp, loff_t *ppos, read_descriptor_
                 /*
                  * Ok, we have the page, and it's up-to-date, so
                  * now we can copy it to user space...
-                 *
-                 * The actor routine returns how many bytes were actually used..
-                 * NOTE! This may not be the same as how much of a user buffer
-                 * we filled up (we may be padding etc), so we can only update
-                 * "pos" here (the actor routine has to update the user buffer
-                 * pointers and the remaining count).
                  */
-                ret = actor(desc, page, offset, nr);
+                ret = copy_page_to_iter(page, offset, nr, &iter);
+                retval += ret;
                 offset += ret;
                 index += offset >> PAGE_CACHE_SHIFT;
                 offset &= ~PAGE_CACHE_MASK;
 
                 page_cache_release(page);
-                if (ret != nr || !desc->count)
+                if (!iov_iter_count(&iter))
                         break;
-
+                if (ret < nr) {
+                        error = -EFAULT;
+                        break;
+                }
                 cond_resched();
         }
 
         *ppos = ((loff_t) index << PAGE_CACHE_SHIFT) + offset;
-        file_accessed(filp);
-}
-
-static ssize_t shmem_file_aio_read(struct kiocb *iocb,
-                const struct iovec *iov, unsigned long nr_segs, loff_t pos)
-{
-        struct file *filp = iocb->ki_filp;
-        ssize_t retval;
-        unsigned long seg;
-        size_t count;
-        loff_t *ppos = &iocb->ki_pos;
-
-        retval = generic_segment_checks(iov, &nr_segs, &count, VERIFY_WRITE);
-        if (retval)
-                return retval;
-
-        for (seg = 0; seg < nr_segs; seg++) {
-                read_descriptor_t desc;
-
-                desc.written = 0;
-                desc.arg.buf = iov[seg].iov_base;
-                desc.count = iov[seg].iov_len;
-                if (desc.count == 0)
-                        continue;
-                desc.error = 0;
-                do_shmem_file_read(filp, ppos, &desc, file_read_actor);
-                retval += desc.written;
-                if (desc.error) {
-                        retval = retval ?: desc.error;
-                        break;
-                }
-                if (desc.count > 0)
-                        break;
-        }
-        return retval;
+        file_accessed(file);
+        return retval ? retval : error;
 }
 
 static ssize_t shmem_file_splice_read(struct file *in, loff_t *ppos,
@@ -1576,7 +1553,7 @@ static ssize_t shmem_file_splice_read(struct file *in, loff_t *ppos,
         index = *ppos >> PAGE_CACHE_SHIFT;
         loff = *ppos & ~PAGE_CACHE_MASK;
         req_pages = (len + loff + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
-        nr_pages = min(req_pages, pipe->buffers);
+        nr_pages = min(req_pages, spd.nr_pages_max);
 
         spd.nr_pages = find_get_pages_contig(mapping, index,
                                                 nr_pages, spd.pages);
diff --git a/mm/slab.c b/mm/slab.c
index 3db4cb06e32e..388cb1ae6fbc 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -157,6 +157,17 @@
 #define ARCH_KMALLOC_FLAGS SLAB_HWCACHE_ALIGN
 #endif
 
+#define FREELIST_BYTE_INDEX (((PAGE_SIZE >> BITS_PER_BYTE) \
+                                <= SLAB_OBJ_MIN_SIZE) ? 1 : 0)
+
+#if FREELIST_BYTE_INDEX
+typedef unsigned char freelist_idx_t;
+#else
+typedef unsigned short freelist_idx_t;
+#endif
+
+#define SLAB_OBJ_MAX_NUM (1 << sizeof(freelist_idx_t) * BITS_PER_BYTE)
+
 /*
  * true if a page was allocated from pfmemalloc reserves for network-based
  * swap
@@ -277,8 +288,8 @@ static void kmem_cache_node_init(struct kmem_cache_node *parent)
  * OTOH the cpuarrays can contain lots of objects,
  * which could lock up otherwise freeable slabs.
  */
-#define REAPTIMEOUT_CPUC        (2*HZ)
-#define REAPTIMEOUT_LIST3       (4*HZ)
+#define REAPTIMEOUT_AC          (2*HZ)
+#define REAPTIMEOUT_NODE        (4*HZ)
 
 #if STATS
 #define STATS_INC_ACTIVE(x)     ((x)->num_active++)
@@ -565,9 +576,31 @@ static inline struct array_cache *cpu_cache_get(struct kmem_cache *cachep)
         return cachep->array[smp_processor_id()];
 }
 
-static size_t slab_mgmt_size(size_t nr_objs, size_t align)
+static int calculate_nr_objs(size_t slab_size, size_t buffer_size,
+                                size_t idx_size, size_t align)
 {
-        return ALIGN(nr_objs * sizeof(unsigned int), align);
+        int nr_objs;
+        size_t freelist_size;
+
+        /*
+         * Ignore padding for the initial guess. The padding
+         * is at most @align-1 bytes, and @buffer_size is at
+         * least @align. In the worst case, this result will
+         * be one greater than the number of objects that fit
+         * into the memory allocation when taking the padding
+         * into account.
+         */
+        nr_objs = slab_size / (buffer_size + idx_size);
+
+        /*
+         * This calculated number will be either the right
+         * amount, or one greater than what we want.
+         */
+        freelist_size = slab_size - nr_objs * buffer_size;
+        if (freelist_size < ALIGN(nr_objs * idx_size, align))
+                nr_objs--;
+
+        return nr_objs;
 }
 
 /*
@@ -600,25 +633,9 @@ static void cache_estimate(unsigned long gfporder, size_t buffer_size,
                 nr_objs = slab_size / buffer_size;
 
         } else {
-                /*
-                 * Ignore padding for the initial guess. The padding
-                 * is at most @align-1 bytes, and @buffer_size is at
-                 * least @align. In the worst case, this result will
-                 * be one greater than the number of objects that fit
-                 * into the memory allocation when taking the padding
-                 * into account.
-                 */
-                nr_objs = (slab_size) / (buffer_size + sizeof(unsigned int));
-
-                /*
-                 * This calculated number will be either the right
-                 * amount, or one greater than what we want.
-                 */
-                if (slab_mgmt_size(nr_objs, align) + nr_objs*buffer_size
-                       > slab_size)
-                        nr_objs--;
-
-                mgmt_size = slab_mgmt_size(nr_objs, align);
+                nr_objs = calculate_nr_objs(slab_size, buffer_size,
+                                        sizeof(freelist_idx_t), align);
+                mgmt_size = ALIGN(nr_objs * sizeof(freelist_idx_t), align);
         }
         *num = nr_objs;
         *left_over = slab_size - nr_objs*buffer_size - mgmt_size;
@@ -1067,7 +1084,7 @@ static int init_cache_node_node(int node)
 
         list_for_each_entry(cachep, &slab_caches, list) {
                 /*
-                 * Set up the size64 kmemlist for cpu before we can
+                 * Set up the kmem_cache_node for cpu before we can
                  * begin anything. Make sure some other cpu on this
                  * node has not already allocated this
                  */
@@ -1076,12 +1093,12 @@ static int init_cache_node_node(int node)
                         if (!n)
                                 return -ENOMEM;
                         kmem_cache_node_init(n);
-                        n->next_reap = jiffies + REAPTIMEOUT_LIST3 +
-                            ((unsigned long)cachep) % REAPTIMEOUT_LIST3;
+                        n->next_reap = jiffies + REAPTIMEOUT_NODE +
+                            ((unsigned long)cachep) % REAPTIMEOUT_NODE;
 
                         /*
-                         * The l3s don't come and go as CPUs come and
-                         * go.  slab_mutex is sufficient
+                         * The kmem_cache_nodes don't come and go as CPUs
+                         * come and go.  slab_mutex is sufficient
                          * protection here.
                          */
                         cachep->node[node] = n;
@@ -1406,8 +1423,8 @@ static void __init set_up_node(struct kmem_cache *cachep, int index)
         for_each_online_node(node) {
                 cachep->node[node] = &init_kmem_cache_node[index + node];
                 cachep->node[node]->next_reap = jiffies +
-                    REAPTIMEOUT_LIST3 +
-                    ((unsigned long)cachep) % REAPTIMEOUT_LIST3;
+                    REAPTIMEOUT_NODE +
+                    ((unsigned long)cachep) % REAPTIMEOUT_NODE;
         }
 }
 
@@ -2010,6 +2027,10 @@ static size_t calculate_slab_order(struct kmem_cache *cachep,
                 if (!num)
                         continue;
 
+                /* Can't handle number of objects more than SLAB_OBJ_MAX_NUM */
+                if (num > SLAB_OBJ_MAX_NUM)
+                        break;
+
                 if (flags & CFLGS_OFF_SLAB) {
                         /*
                          * Max number of objs-per-slab for caches which
@@ -2017,7 +2038,7 @@ static size_t calculate_slab_order(struct kmem_cache *cachep,
                          * looping condition in cache_grow().
                          */
                         offslab_limit = size;
-                        offslab_limit /= sizeof(unsigned int);
+                        offslab_limit /= sizeof(freelist_idx_t);
 
                         if (num > offslab_limit)
                                 break;
@@ -2103,8 +2124,8 @@ static int __init_refok setup_cpu_cache(struct kmem_cache *cachep, gfp_t gfp)
                 }
         }
         cachep->node[numa_mem_id()]->next_reap =
-                        jiffies + REAPTIMEOUT_LIST3 +
-                        ((unsigned long)cachep) % REAPTIMEOUT_LIST3;
+                        jiffies + REAPTIMEOUT_NODE +
+                        ((unsigned long)cachep) % REAPTIMEOUT_NODE;
 
         cpu_cache_get(cachep)->avail = 0;
         cpu_cache_get(cachep)->limit = BOOT_CPUCACHE_ENTRIES;
@@ -2243,7 +2264,7 @@ __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 >> 3)) && !slab_early_init &&
+        if ((size >= (PAGE_SIZE >> 5)) && !slab_early_init &&
             !(flags & SLAB_NOLEAKTRACE))
                 /*
                  * Size is large, assume best to place the slab management obj
@@ -2252,6 +2273,12 @@ __kmem_cache_create (struct kmem_cache *cachep, unsigned long flags)
                 flags |= CFLGS_OFF_SLAB;
 
         size = ALIGN(size, cachep->align);
+        /*
+         * We should restrict the number of objects in a slab to implement
+         * byte sized index. Refer comment on SLAB_OBJ_MIN_SIZE definition.
+         */
+        if (FREELIST_BYTE_INDEX && size < SLAB_OBJ_MIN_SIZE)
+                size = ALIGN(SLAB_OBJ_MIN_SIZE, cachep->align);
 
         left_over = calculate_slab_order(cachep, size, cachep->align, flags);
 
@@ -2259,7 +2286,7 @@ __kmem_cache_create (struct kmem_cache *cachep, unsigned long flags)
                 return -E2BIG;
 
         freelist_size =
-                ALIGN(cachep->num * sizeof(unsigned int), cachep->align);
+                ALIGN(cachep->num * sizeof(freelist_idx_t), cachep->align);
 
         /*
          * If the slab has been placed off-slab, and we have enough space then
@@ -2272,7 +2299,7 @@ __kmem_cache_create (struct kmem_cache *cachep, unsigned long flags)
 
         if (flags & CFLGS_OFF_SLAB) {
                 /* really off slab. No need for manual alignment */
-                freelist_size = cachep->num * sizeof(unsigned int);
+                freelist_size = cachep->num * sizeof(freelist_idx_t);
 
 #ifdef CONFIG_PAGE_POISONING
                 /* If we're going to use the generic kernel_map_pages()
@@ -2300,10 +2327,10 @@ __kmem_cache_create (struct kmem_cache *cachep, unsigned long flags)
         if (flags & CFLGS_OFF_SLAB) {
                 cachep->freelist_cache = kmalloc_slab(freelist_size, 0u);
                 /*
-                 * This is a possibility for one of the malloc_sizes caches.
+                 * 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 malloc_sizes gets created in ascending order,
-                 * this should not happen at all.
+                 * PAGE_SIZE/8, and kmalloc_{dma,}_caches get created
+                 * in ascending order,this should not happen at all.
                  * But leave a BUG_ON for some lucky dude.
                  */
                 BUG_ON(ZERO_OR_NULL_PTR(cachep->freelist_cache));
@@ -2511,14 +2538,17 @@ int __kmem_cache_shutdown(struct kmem_cache *cachep)
 
 /*
  * Get the memory for a slab management obj.
- * For a slab cache when the slab descriptor is off-slab, slab descriptors
- * always come from malloc_sizes caches.  The slab descriptor cannot
- * come from the same cache which is getting created because,
- * when we are searching for an appropriate cache for these
- * descriptors in kmem_cache_create, we search through the malloc_sizes array.
- * If we are creating a malloc_sizes cache here it would not be visible to
- * kmem_find_general_cachep till the initialization is complete.
- * Hence we cannot have freelist_cache same as the original cache.
+ *
+ * For a slab cache when the slab descriptor is off-slab, the
+ * slab descriptor can't come from the same cache which is being created,
+ * Because if it is the case, that means we defer the creation of
+ * the kmalloc_{dma,}_cache of size sizeof(slab descriptor) to this point.
+ * And we eventually call down to __kmem_cache_create(), which
+ * in turn looks up in the kmalloc_{dma,}_caches for the disired-size one.
+ * This is a "chicken-and-egg" problem.
+ *
+ * So the off-slab slab descriptor shall come from the kmalloc_{dma,}_caches,
+ * which are all initialized during kmem_cache_init().
  */
 static void *alloc_slabmgmt(struct kmem_cache *cachep,
                                    struct page *page, int colour_off,
@@ -2542,9 +2572,15 @@ static void *alloc_slabmgmt(struct kmem_cache *cachep,
         return freelist;
 }
 
-static inline unsigned int *slab_freelist(struct page *page)
+static inline freelist_idx_t get_free_obj(struct page *page, unsigned char idx)
 {
-        return (unsigned int *)(page->freelist);
+        return ((freelist_idx_t *)page->freelist)[idx];
+}
+
+static inline void set_free_obj(struct page *page,
+                                        unsigned char idx, freelist_idx_t val)
+{
+        ((freelist_idx_t *)(page->freelist))[idx] = val;
 }
 
 static void cache_init_objs(struct kmem_cache *cachep,
@@ -2589,7 +2625,7 @@ static void cache_init_objs(struct kmem_cache *cachep,
                 if (cachep->ctor)
                         cachep->ctor(objp);
 #endif
-                slab_freelist(page)[i] = i;
+                set_free_obj(page, i, i);
         }
 }
 
@@ -2608,7 +2644,7 @@ static void *slab_get_obj(struct kmem_cache *cachep, struct page *page,
 {
         void *objp;
 
-        objp = index_to_obj(cachep, page, slab_freelist(page)[page->active]);
+        objp = index_to_obj(cachep, page, get_free_obj(page, page->active));
         page->active++;
 #if DEBUG
         WARN_ON(page_to_nid(virt_to_page(objp)) != nodeid);
@@ -2629,7 +2665,7 @@ static void slab_put_obj(struct kmem_cache *cachep, struct page *page,
 
         /* Verify double free bug */
         for (i = page->active; i < cachep->num; i++) {
-                if (slab_freelist(page)[i] == objnr) {
+                if (get_free_obj(page, i) == objnr) {
                         printk(KERN_ERR "slab: double free detected in cache "
                                         "'%s', objp %p\n", cachep->name, objp);
                         BUG();
@@ -2637,7 +2673,7 @@ static void slab_put_obj(struct kmem_cache *cachep, struct page *page,
         }
 #endif
         page->active--;
-        slab_freelist(page)[page->active] = objnr;
+        set_free_obj(page, page->active, objnr);
 }
 
 /*
@@ -2886,9 +2922,9 @@ retry:
                 /* move slabp to correct slabp list: */
                 list_del(&page->lru);
                 if (page->active == cachep->num)
-                        list_add(&page->list, &n->slabs_full);
+                        list_add(&page->lru, &n->slabs_full);
                 else
-                        list_add(&page->list, &n->slabs_partial);
+                        list_add(&page->lru, &n->slabs_partial);
         }
 
 must_grow:
@@ -3245,11 +3281,11 @@ slab_alloc_node(struct kmem_cache *cachep, gfp_t flags, int nodeid,
         kmemleak_alloc_recursive(ptr, cachep->object_size, 1, cachep->flags,
                                  flags);
 
-        if (likely(ptr))
+        if (likely(ptr)) {
                 kmemcheck_slab_alloc(cachep, flags, ptr, cachep->object_size);
-
-        if (unlikely((flags & __GFP_ZERO) && ptr))
-                memset(ptr, 0, cachep->object_size);
+                if (unlikely(flags & __GFP_ZERO))
+                        memset(ptr, 0, cachep->object_size);
+        }
 
         return ptr;
 }
@@ -3310,17 +3346,17 @@ slab_alloc(struct kmem_cache *cachep, gfp_t flags, unsigned long caller)
                                  flags);
         prefetchw(objp);
 
-        if (likely(objp))
+        if (likely(objp)) {
                 kmemcheck_slab_alloc(cachep, flags, objp, cachep->object_size);
-
-        if (unlikely((flags & __GFP_ZERO) && objp))
-                memset(objp, 0, cachep->object_size);
+                if (unlikely(flags & __GFP_ZERO))
+                        memset(objp, 0, cachep->object_size);
+        }
 
         return objp;
 }
 
 /*
- * Caller needs to acquire correct kmem_list's list_lock
+ * Caller needs to acquire correct kmem_cache_node's list_lock
  */
 static void free_block(struct kmem_cache *cachep, void **objpp, int nr_objects,
                        int node)
@@ -3574,11 +3610,6 @@ static __always_inline void *__do_kmalloc(size_t size, gfp_t flags,
         struct kmem_cache *cachep;
         void *ret;
 
-        /* If you want to save a few bytes .text space: replace
-         * __ with kmem_.
-         * Then kmalloc uses the uninlined functions instead of the inline
-         * functions.
-         */
         cachep = kmalloc_slab(size, flags);
         if (unlikely(ZERO_OR_NULL_PTR(cachep)))
                 return cachep;
@@ -3670,7 +3701,7 @@ EXPORT_SYMBOL(kfree);
 /*
  * This initializes kmem_cache_node or resizes various caches for all nodes.
  */
-static int alloc_kmemlist(struct kmem_cache *cachep, gfp_t gfp)
+static int alloc_kmem_cache_node(struct kmem_cache *cachep, gfp_t gfp)
 {
         int node;
         struct kmem_cache_node *n;
@@ -3726,8 +3757,8 @@ static int alloc_kmemlist(struct kmem_cache *cachep, gfp_t gfp)
                 }
 
                 kmem_cache_node_init(n);
-                n->next_reap = jiffies + REAPTIMEOUT_LIST3 +
-                                ((unsigned long)cachep) % REAPTIMEOUT_LIST3;
+                n->next_reap = jiffies + REAPTIMEOUT_NODE +
+                                ((unsigned long)cachep) % REAPTIMEOUT_NODE;
                 n->shared = new_shared;
                 n->alien = new_alien;
                 n->free_limit = (1 + nr_cpus_node(node)) *
@@ -3813,7 +3844,7 @@ static int __do_tune_cpucache(struct kmem_cache *cachep, int limit,
                 kfree(ccold);
         }
         kfree(new);
-        return alloc_kmemlist(cachep, gfp);
+        return alloc_kmem_cache_node(cachep, gfp);
 }
 
 static int do_tune_cpucache(struct kmem_cache *cachep, int limit,
@@ -3982,7 +4013,7 @@ static void cache_reap(struct work_struct *w)
                 if (time_after(n->next_reap, jiffies))
                         goto next;
 
-                n->next_reap = jiffies + REAPTIMEOUT_LIST3;
+                n->next_reap = jiffies + REAPTIMEOUT_NODE;
 
                 drain_array(searchp, n, n->shared, 0, node);
 
@@ -4003,7 +4034,7 @@ next:
         next_reap_node();
 out:
         /* Set up the next iteration */
-        schedule_delayed_work(work, round_jiffies_relative(REAPTIMEOUT_CPUC));
+        schedule_delayed_work(work, round_jiffies_relative(REAPTIMEOUT_AC));
 }
 
 #ifdef CONFIG_SLABINFO
@@ -4210,7 +4241,7 @@ static void handle_slab(unsigned long *n, struct kmem_cache *c,
 
                 for (j = page->active; j < c->num; j++) {
                         /* Skip freed item */
-                        if (slab_freelist(page)[j] == i) {
+                        if (get_free_obj(page, j) == i) {
                                 active = false;
                                 break;
                         }
diff --git a/mm/slob.c b/mm/slob.c
index 4bf8809dfcce..730cad45d4be 100644
--- a/mm/slob.c
+++ b/mm/slob.c
@@ -111,13 +111,13 @@ static inline int slob_page_free(struct page *sp)
 
 static void set_slob_page_free(struct page *sp, struct list_head *list)
 {
-        list_add(&sp->list, list);
+        list_add(&sp->lru, list);
         __SetPageSlobFree(sp);
 }
 
 static inline void clear_slob_page_free(struct page *sp)
 {
-        list_del(&sp->list);
+        list_del(&sp->lru);
         __ClearPageSlobFree(sp);
 }
 
@@ -282,7 +282,7 @@ static void *slob_alloc(size_t size, gfp_t gfp, int align, int node)
 
         spin_lock_irqsave(&slob_lock, flags);
         /* Iterate through each partially free page, try to find room */
-        list_for_each_entry(sp, slob_list, list) {
+        list_for_each_entry(sp, slob_list, lru) {
 #ifdef CONFIG_NUMA
                 /*
                  * If there's a node specification, search for a partial
@@ -296,7 +296,7 @@ static void *slob_alloc(size_t size, gfp_t gfp, int align, int node)
                         continue;
 
                 /* Attempt to alloc */
-                prev = sp->list.prev;
+                prev = sp->lru.prev;
                 b = slob_page_alloc(sp, size, align);
                 if (!b)
                         continue;
@@ -322,7 +322,7 @@ static void *slob_alloc(size_t size, gfp_t gfp, int align, int node)
                 spin_lock_irqsave(&slob_lock, flags);
                 sp->units = SLOB_UNITS(PAGE_SIZE);
                 sp->freelist = b;
-                INIT_LIST_HEAD(&sp->list);
+                INIT_LIST_HEAD(&sp->lru);
                 set_slob(b, SLOB_UNITS(PAGE_SIZE), b + SLOB_UNITS(PAGE_SIZE));
                 set_slob_page_free(sp, slob_list);
                 b = slob_page_alloc(sp, size, align);
diff --git a/mm/slub.c b/mm/slub.c
index f620bbf4054a..5e234f1f8853 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -1352,11 +1352,12 @@ static struct page *allocate_slab(struct kmem_cache *s, gfp_t flags, int node)
         page = alloc_slab_page(alloc_gfp, node, oo);
         if (unlikely(!page)) {
                 oo = s->min;
+                alloc_gfp = flags;
                 /*
                  * Allocation may have failed due to fragmentation.
                  * Try a lower order alloc if possible
                  */
-                page = alloc_slab_page(flags, node, oo);
+                page = alloc_slab_page(alloc_gfp, node, oo);
 
                 if (page)
                         stat(s, ORDER_FALLBACK);
@@ -1366,7 +1367,7 @@ static struct page *allocate_slab(struct kmem_cache *s, gfp_t flags, int node)
                 && !(s->flags & (SLAB_NOTRACK | DEBUG_DEFAULT_FLAGS))) {
                 int pages = 1 << oo_order(oo);
 
-                kmemcheck_alloc_shadow(page, oo_order(oo), flags, node);
+                kmemcheck_alloc_shadow(page, oo_order(oo), alloc_gfp, node);
 
                 /*
                  * Objects from caches that have a constructor don't get
diff --git a/mm/util.c b/mm/util.c
index d7813e6d4cc7..f380af7ea779 100644
--- a/mm/util.c
+++ b/mm/util.c
@@ -446,6 +446,54 @@ unsigned long vm_commit_limit(void)
         return allowed;
 }
 
+/**
+ * get_cmdline() - copy the cmdline value to a buffer.
+ * @task:     the task whose cmdline value to copy.
+ * @buffer:   the buffer to copy to.
+ * @buflen:   the length of the buffer. Larger cmdline values are truncated
+ *            to this length.
+ * Returns the size of the cmdline field copied. Note that the copy does
+ * not guarantee an ending NULL byte.
+ */
+int get_cmdline(struct task_struct *task, char *buffer, int buflen)
+{
+        int res = 0;
+        unsigned int len;
+        struct mm_struct *mm = get_task_mm(task);
+        if (!mm)
+                goto out;
+        if (!mm->arg_end)
+                goto out_mm;    /* Shh! No looking before we're done */
+
+        len = mm->arg_end - mm->arg_start;
+
+        if (len > buflen)
+                len = buflen;
+
+        res = access_process_vm(task, mm->arg_start, buffer, len, 0);
+
+        /*
+         * If the nul at the end of args has been overwritten, then
+         * assume application is using setproctitle(3).
+         */
+        if (res > 0 && buffer[res-1] != '\0' && len < buflen) {
+                len = strnlen(buffer, res);
+                if (len < res) {
+                        res = len;
+                } else {
+                        len = mm->env_end - mm->env_start;
+                        if (len > buflen - res)
+                                len = buflen - res;
+                        res += access_process_vm(task, mm->env_start,
+                                                 buffer+res, len, 0);
+                        res = strnlen(buffer, res);
+                }
+        }
+out_mm:
+        mmput(mm);
+out:
+        return res;
+}
 
 /* Tracepoints definitions. */
 EXPORT_TRACEPOINT_SYMBOL(kmalloc);
diff --git a/net/9p/client.c b/net/9p/client.c
index 9186550d77a6..0004cbaac4a4 100644
--- a/net/9p/client.c
+++ b/net/9p/client.c
@@ -415,9 +415,17 @@ static void p9_free_req(struct p9_client *c, struct p9_req_t *r)
  * req: request received
  *
  */
-void p9_client_cb(struct p9_client *c, struct p9_req_t *req)
+void p9_client_cb(struct p9_client *c, struct p9_req_t *req, int status)
 {
         p9_debug(P9_DEBUG_MUX, " tag %d\n", req->tc->tag);
+
+        /*
+         * This barrier is needed to make sure any change made to req before
+         * the other thread wakes up will indeed be seen by the waiting side.
+         */
+        smp_wmb();
+        req->status = status;
+
         wake_up(req->wq);
         p9_debug(P9_DEBUG_MUX, "wakeup: %d\n", req->tc->tag);
 }
@@ -655,16 +663,13 @@ static int p9_client_flush(struct p9_client *c, struct p9_req_t *oldreq)
         if (IS_ERR(req))
                 return PTR_ERR(req);
 
-
         /*
          * if we haven't received a response for oldreq,
          * remove it from the list
          */
-        if (oldreq->status == REQ_STATUS_FLSH) {
-                spin_lock(&c->lock);
-                list_del(&oldreq->req_list);
-                spin_unlock(&c->lock);
-        }
+        if (oldreq->status == REQ_STATUS_SENT)
+                if (c->trans_mod->cancelled)
+                        c->trans_mod->cancelled(c, oldreq);
 
         p9_free_req(c, req);
         return 0;
@@ -751,6 +756,12 @@ again:
         err = wait_event_interruptible(*req->wq,
                                        req->status >= REQ_STATUS_RCVD);
 
+        /*
+         * Make sure our req is coherent with regard to updates in other
+         * threads - echoes to wmb() in the callback
+         */
+        smp_rmb();
+
         if ((err == -ERESTARTSYS) && (c->status == Connected)
                                   && (type == P9_TFLUSH)) {
                 sigpending = 1;
diff --git a/net/9p/trans_fd.c b/net/9p/trans_fd.c
index b7bd7f2961bf..80d08f6664cb 100644
--- a/net/9p/trans_fd.c
+++ b/net/9p/trans_fd.c
@@ -66,20 +66,6 @@ struct p9_fd_opts {
         int privport;
 };
 
-/**
- * struct p9_trans_fd - transport state
- * @rd: reference to file to read from
- * @wr: reference of file to write to
- * @conn: connection state reference
- *
- */
-
-struct p9_trans_fd {
-        struct file *rd;
-        struct file *wr;
-        struct p9_conn *conn;
-};
-
 /*
   * Option Parsing (code inspired by NFS code)
   *  - a little lazy - parse all fd-transport options
@@ -159,6 +145,20 @@ struct p9_conn {
         unsigned long wsched;
 };
 
+/**
+ * struct p9_trans_fd - transport state
+ * @rd: reference to file to read from
+ * @wr: reference of file to write to
+ * @conn: connection state reference
+ *
+ */
+
+struct p9_trans_fd {
+        struct file *rd;
+        struct file *wr;
+        struct p9_conn conn;
+};
+
 static void p9_poll_workfn(struct work_struct *work);
 
 static DEFINE_SPINLOCK(p9_poll_lock);
@@ -212,15 +212,9 @@ static void p9_conn_cancel(struct p9_conn *m, int err)
         m->err = err;
 
         list_for_each_entry_safe(req, rtmp, &m->req_list, req_list) {
-                req->status = REQ_STATUS_ERROR;
-                if (!req->t_err)
-                        req->t_err = err;
                 list_move(&req->req_list, &cancel_list);
         }
         list_for_each_entry_safe(req, rtmp, &m->unsent_req_list, req_list) {
-                req->status = REQ_STATUS_ERROR;
-                if (!req->t_err)
-                        req->t_err = err;
                 list_move(&req->req_list, &cancel_list);
         }
         spin_unlock_irqrestore(&m->client->lock, flags);
@@ -228,7 +222,9 @@ static void p9_conn_cancel(struct p9_conn *m, int err)
         list_for_each_entry_safe(req, rtmp, &cancel_list, req_list) {
                 p9_debug(P9_DEBUG_ERROR, "call back req %p\n", req);
                 list_del(&req->req_list);
-                p9_client_cb(m->client, req);
+                if (!req->t_err)
+                        req->t_err = err;
+                p9_client_cb(m->client, req, REQ_STATUS_ERROR);
         }
 }
 
@@ -302,6 +298,7 @@ static void p9_read_work(struct work_struct *work)
 {
         int n, err;
         struct p9_conn *m;
+        int status = REQ_STATUS_ERROR;
 
         m = container_of(work, struct p9_conn, rq);
 
@@ -348,8 +345,7 @@ static void p9_read_work(struct work_struct *work)
                          "mux %p pkt: size: %d bytes tag: %d\n", m, n, tag);
 
                 m->req = p9_tag_lookup(m->client, tag);
-                if (!m->req || (m->req->status != REQ_STATUS_SENT &&
-                                        m->req->status != REQ_STATUS_FLSH)) {
+                if (!m->req || (m->req->status != REQ_STATUS_SENT)) {
                         p9_debug(P9_DEBUG_ERROR, "Unexpected packet tag %d\n",
                                  tag);
                         err = -EIO;
@@ -375,10 +371,10 @@ static void p9_read_work(struct work_struct *work)
                 p9_debug(P9_DEBUG_TRANS, "got new packet\n");
                 spin_lock(&m->client->lock);
                 if (m->req->status != REQ_STATUS_ERROR)
-                        m->req->status = REQ_STATUS_RCVD;
+                        status = REQ_STATUS_RCVD;
                 list_del(&m->req->req_list);
                 spin_unlock(&m->client->lock);
-                p9_client_cb(m->client, m->req);
+                p9_client_cb(m->client, m->req, status);
                 m->rbuf = NULL;
                 m->rpos = 0;
                 m->rsize = 0;
@@ -573,21 +569,19 @@ p9_pollwait(struct file *filp, wait_queue_head_t *wait_address, poll_table *p)
 }
 
 /**
- * p9_conn_create - allocate and initialize the per-session mux data
+ * p9_conn_create - initialize the per-session mux data
  * @client: client instance
  *
  * Note: Creates the polling task if this is the first session.
  */
 
-static struct p9_conn *p9_conn_create(struct p9_client *client)
+static void p9_conn_create(struct p9_client *client)
 {
         int n;
-        struct p9_conn *m;
+        struct p9_trans_fd *ts = client->trans;
+        struct p9_conn *m = &ts->conn;
 
         p9_debug(P9_DEBUG_TRANS, "client %p msize %d\n", client, client->msize);
-        m = kzalloc(sizeof(struct p9_conn), GFP_KERNEL);
-        if (!m)
-                return ERR_PTR(-ENOMEM);
 
         INIT_LIST_HEAD(&m->mux_list);
         m->client = client;
@@ -609,8 +603,6 @@ static struct p9_conn *p9_conn_create(struct p9_client *client)
                 p9_debug(P9_DEBUG_TRANS, "mux %p can write\n", m);
                 set_bit(Wpending, &m->wsched);
         }
-
-        return m;
 }
 
 /**
@@ -669,7 +661,7 @@ static int p9_fd_request(struct p9_client *client, struct p9_req_t *req)
 {
         int n;
         struct p9_trans_fd *ts = client->trans;
-        struct p9_conn *m = ts->conn;
+        struct p9_conn *m = &ts->conn;
 
         p9_debug(P9_DEBUG_TRANS, "mux %p task %p tcall %p id %d\n",
                  m, current, req->tc, req->tc->id);
@@ -704,14 +696,26 @@ static int p9_fd_cancel(struct p9_client *client, struct p9_req_t *req)
                 list_del(&req->req_list);
                 req->status = REQ_STATUS_FLSHD;
                 ret = 0;
-        } else if (req->status == REQ_STATUS_SENT)
-                req->status = REQ_STATUS_FLSH;
-
+        }
         spin_unlock(&client->lock);
 
         return ret;
 }
 
+static int p9_fd_cancelled(struct p9_client *client, struct p9_req_t *req)
+{
+        p9_debug(P9_DEBUG_TRANS, "client %p req %p\n", client, req);
+
+        /* we haven't received a response for oldreq,
+         * remove it from the list.
+         */
+        spin_lock(&client->lock);
+        list_del(&req->req_list);
+        spin_unlock(&client->lock);
+
+        return 0;
+}
+
 /**
  * parse_opts - parse mount options into p9_fd_opts structure
  * @params: options string passed from mount
@@ -780,7 +784,7 @@ static int parse_opts(char *params, struct p9_fd_opts *opts)
 
 static int p9_fd_open(struct p9_client *client, int rfd, int wfd)
 {
-        struct p9_trans_fd *ts = kmalloc(sizeof(struct p9_trans_fd),
+        struct p9_trans_fd *ts = kzalloc(sizeof(struct p9_trans_fd),
                                            GFP_KERNEL);
         if (!ts)
                 return -ENOMEM;
@@ -806,9 +810,8 @@ static int p9_socket_open(struct p9_client *client, struct socket *csocket)
 {
         struct p9_trans_fd *p;
         struct file *file;
-        int ret;
 
-        p = kmalloc(sizeof(struct p9_trans_fd), GFP_KERNEL);
+        p = kzalloc(sizeof(struct p9_trans_fd), GFP_KERNEL);
         if (!p)
                 return -ENOMEM;
 
@@ -829,20 +832,12 @@ static int p9_socket_open(struct p9_client *client, struct socket *csocket)
 
         p->rd->f_flags |= O_NONBLOCK;
 
-        p->conn = p9_conn_create(client);
-        if (IS_ERR(p->conn)) {
-                ret = PTR_ERR(p->conn);
-                p->conn = NULL;
-                kfree(p);
-                sockfd_put(csocket);
-                sockfd_put(csocket);
-                return ret;
-        }
+        p9_conn_create(client);
         return 0;
 }
 
 /**
- * p9_mux_destroy - cancels all pending requests and frees mux resources
+ * p9_mux_destroy - cancels all pending requests of mux
  * @m: mux to destroy
  *
  */
@@ -859,7 +854,6 @@ static void p9_conn_destroy(struct p9_conn *m)
         p9_conn_cancel(m, -ECONNRESET);
 
         m->client = NULL;
-        kfree(m);
 }
 
 /**
@@ -881,7 +875,7 @@ static void p9_fd_close(struct p9_client *client)
 
         client->status = Disconnected;
 
-        p9_conn_destroy(ts->conn);
+        p9_conn_destroy(&ts->conn);
 
         if (ts->rd)
                 fput(ts->rd);
@@ -1033,14 +1027,7 @@ p9_fd_create(struct p9_client *client, const char *addr, char *args)
                 return err;
 
         p = (struct p9_trans_fd *) client->trans;
-        p->conn = p9_conn_create(client);
-        if (IS_ERR(p->conn)) {
-                err = PTR_ERR(p->conn);
-                p->conn = NULL;
-                fput(p->rd);
-                fput(p->wr);
-                return err;
-        }
+        p9_conn_create(client);
 
         return 0;
 }
@@ -1053,6 +1040,7 @@ static struct p9_trans_module p9_tcp_trans = {
         .close = p9_fd_close,
         .request = p9_fd_request,
         .cancel = p9_fd_cancel,
+        .cancelled = p9_fd_cancelled,
         .owner = THIS_MODULE,
 };
 
@@ -1064,6 +1052,7 @@ static struct p9_trans_module p9_unix_trans = {
         .close = p9_fd_close,
         .request = p9_fd_request,
         .cancel = p9_fd_cancel,
+        .cancelled = p9_fd_cancelled,
         .owner = THIS_MODULE,
 };
 
@@ -1075,6 +1064,7 @@ static struct p9_trans_module p9_fd_trans = {
         .close = p9_fd_close,
         .request = p9_fd_request,
         .cancel = p9_fd_cancel,
+        .cancelled = p9_fd_cancelled,
         .owner = THIS_MODULE,
 };
 
diff --git a/net/9p/trans_rdma.c b/net/9p/trans_rdma.c
index 8f68df5d2973..14ad43b5cf89 100644
--- a/net/9p/trans_rdma.c
+++ b/net/9p/trans_rdma.c
@@ -193,6 +193,8 @@ static int parse_opts(char *params, struct p9_rdma_opts *opts)
                 if (!*p)
                         continue;
                 token = match_token(p, tokens, args);
+                if (token == Opt_err)
+                        continue;
                 r = match_int(&args[0], &option);
                 if (r < 0) {
                         p9_debug(P9_DEBUG_ERROR,
@@ -305,8 +307,7 @@ handle_recv(struct p9_client *client, struct p9_trans_rdma *rdma,
         }
 
         req->rc = c->rc;
-        req->status = REQ_STATUS_RCVD;
-        p9_client_cb(client, req);
+        p9_client_cb(client, req, REQ_STATUS_RCVD);
 
         return;
 
@@ -511,6 +512,11 @@ dont_need_post_recv:
                 goto send_error;
         }
 
+        /* Mark request as `sent' *before* we actually send it,
+         * because doing if after could erase the REQ_STATUS_RCVD
+         * status in case of a very fast reply.
+         */
+        req->status = REQ_STATUS_SENT;
         err = ib_post_send(rdma->qp, &wr, &bad_wr);
         if (err)
                 goto send_error;
@@ -520,6 +526,7 @@ dont_need_post_recv:
 
  /* Handle errors that happened during or while preparing the send: */
  send_error:
+        req->status = REQ_STATUS_ERROR;
         kfree(c);
         p9_debug(P9_DEBUG_ERROR, "Error %d in rdma_request()\n", err);
 
@@ -582,12 +589,24 @@ static struct p9_trans_rdma *alloc_rdma(struct p9_rdma_opts *opts)
         return rdma;
 }
 
-/* its not clear to me we can do anything after send has been posted */
 static int rdma_cancel(struct p9_client *client, struct p9_req_t *req)
 {
+        /* Nothing to do here.
+         * We will take care of it (if we have to) in rdma_cancelled()
+         */
         return 1;
 }
 
+/* A request has been fully flushed without a reply.
+ * That means we have posted one buffer in excess.
+ */
+static int rdma_cancelled(struct p9_client *client, struct p9_req_t *req)
+{
+        struct p9_trans_rdma *rdma = client->trans;
+        atomic_inc(&rdma->excess_rc);
+        return 0;
+}
+
 /**
  * trans_create_rdma - Transport method for creating atransport instance
  * @client: client instance
@@ -721,6 +740,7 @@ static struct p9_trans_module p9_rdma_trans = {
         .close = rdma_close,
         .request = rdma_request,
         .cancel = rdma_cancel,
+        .cancelled = rdma_cancelled,
 };
 
 /**
diff --git a/net/9p/trans_virtio.c b/net/9p/trans_virtio.c
index ac2666c1d011..6940d8fe8971 100644
--- a/net/9p/trans_virtio.c
+++ b/net/9p/trans_virtio.c
@@ -164,8 +164,7 @@ static void req_done(struct virtqueue *vq)
                 p9_debug(P9_DEBUG_TRANS, ": rc %p\n", rc);
                 p9_debug(P9_DEBUG_TRANS, ": lookup tag %d\n", rc->tag);
                 req = p9_tag_lookup(chan->client, rc->tag);
-                req->status = REQ_STATUS_RCVD;
-                p9_client_cb(chan->client, req);
+                p9_client_cb(chan->client, req, REQ_STATUS_RCVD);
         }
 }
 
diff --git a/net/atm/clip.c b/net/atm/clip.c
index 8215f7cb170b..ba291ce4bdff 100644
--- a/net/atm/clip.c
+++ b/net/atm/clip.c
@@ -68,7 +68,7 @@ static int to_atmarpd(enum atmarp_ctrl_type type, int itf, __be32 ip)
 
         sk = sk_atm(atmarpd);
         skb_queue_tail(&sk->sk_receive_queue, skb);
-        sk->sk_data_ready(sk, skb->len);
+        sk->sk_data_ready(sk);
         return 0;
 }
 
diff --git a/net/atm/lec.c b/net/atm/lec.c
index 5a2f602d07e1..4c5b8ba0f84f 100644
--- a/net/atm/lec.c
+++ b/net/atm/lec.c
@@ -152,7 +152,7 @@ static void lec_handle_bridge(struct sk_buff *skb, struct net_device *dev)
                 atm_force_charge(priv->lecd, skb2->truesize);
                 sk = sk_atm(priv->lecd);
                 skb_queue_tail(&sk->sk_receive_queue, skb2);
-                sk->sk_data_ready(sk, skb2->len);
+                sk->sk_data_ready(sk);
         }
 }
 #endif /* defined(CONFIG_BRIDGE) || defined(CONFIG_BRIDGE_MODULE) */
@@ -447,7 +447,7 @@ static int lec_atm_send(struct atm_vcc *vcc, struct sk_buff *skb)
                         atm_force_charge(priv->lecd, skb2->truesize);
                         sk = sk_atm(priv->lecd);
                         skb_queue_tail(&sk->sk_receive_queue, skb2);
-                        sk->sk_data_ready(sk, skb2->len);
+                        sk->sk_data_ready(sk);
                 }
         }
 #endif /* defined(CONFIG_BRIDGE) || defined(CONFIG_BRIDGE_MODULE) */
@@ -530,13 +530,13 @@ send_to_lecd(struct lec_priv *priv, atmlec_msg_type type,
         atm_force_charge(priv->lecd, skb->truesize);
         sk = sk_atm(priv->lecd);
         skb_queue_tail(&sk->sk_receive_queue, skb);
-        sk->sk_data_ready(sk, skb->len);
+        sk->sk_data_ready(sk);
 
         if (data != NULL) {
                 pr_debug("about to send %d bytes of data\n", data->len);
                 atm_force_charge(priv->lecd, data->truesize);
                 skb_queue_tail(&sk->sk_receive_queue, data);
-                sk->sk_data_ready(sk, skb->len);
+                sk->sk_data_ready(sk);
         }
 
         return 0;
@@ -616,7 +616,7 @@ static void lec_push(struct atm_vcc *vcc, struct sk_buff *skb)
 
                 pr_debug("%s: To daemon\n", dev->name);
                 skb_queue_tail(&sk->sk_receive_queue, skb);
-                sk->sk_data_ready(sk, skb->len);
+                sk->sk_data_ready(sk);
         } else {                /* Data frame, queue to protocol handlers */
                 struct lec_arp_table *entry;
                 unsigned char *src, *dst;
diff --git a/net/atm/mpc.c b/net/atm/mpc.c
index 91dc58f1124d..e8e0e7a8a23d 100644
--- a/net/atm/mpc.c
+++ b/net/atm/mpc.c
@@ -706,7 +706,7 @@ static void mpc_push(struct atm_vcc *vcc, struct sk_buff *skb)
                 dprintk("(%s) control packet arrived\n", dev->name);
                 /* Pass control packets to daemon */
                 skb_queue_tail(&sk->sk_receive_queue, skb);
-                sk->sk_data_ready(sk, skb->len);
+                sk->sk_data_ready(sk);
                 return;
         }
 
@@ -992,7 +992,7 @@ int msg_to_mpoad(struct k_message *mesg, struct mpoa_client *mpc)
 
         sk = sk_atm(mpc->mpoad_vcc);
         skb_queue_tail(&sk->sk_receive_queue, skb);
-        sk->sk_data_ready(sk, skb->len);
+        sk->sk_data_ready(sk);
 
         return 0;
 }
@@ -1273,7 +1273,7 @@ static void purge_egress_shortcut(struct atm_vcc *vcc, eg_cache_entry *entry)
 
         sk = sk_atm(vcc);
         skb_queue_tail(&sk->sk_receive_queue, skb);
-        sk->sk_data_ready(sk, skb->len);
+        sk->sk_data_ready(sk);
         dprintk("exiting\n");
 }
 
diff --git a/net/atm/raw.c b/net/atm/raw.c
index b4f7b9ff3c74..2e17e97a7a8b 100644
--- a/net/atm/raw.c
+++ b/net/atm/raw.c
@@ -25,7 +25,7 @@ static void atm_push_raw(struct atm_vcc *vcc, struct sk_buff *skb)
                 struct sock *sk = sk_atm(vcc);
 
                 skb_queue_tail(&sk->sk_receive_queue, skb);
-                sk->sk_data_ready(sk, skb->len);
+                sk->sk_data_ready(sk);
         }
 }
 
diff --git a/net/atm/signaling.c b/net/atm/signaling.c
index 4176887e72eb..523bce72f698 100644
--- a/net/atm/signaling.c
+++ b/net/atm/signaling.c
@@ -51,7 +51,7 @@ static void sigd_put_skb(struct sk_buff *skb)
 #endif
         atm_force_charge(sigd, skb->truesize);
         skb_queue_tail(&sk_atm(sigd)->sk_receive_queue, skb);
-        sk_atm(sigd)->sk_data_ready(sk_atm(sigd), skb->len);
+        sk_atm(sigd)->sk_data_ready(sk_atm(sigd));
 }
 
 static void modify_qos(struct atm_vcc *vcc, struct atmsvc_msg *msg)
diff --git a/net/ax25/ax25_in.c b/net/ax25/ax25_in.c
index 96f4cab3a2f9..7ed8ab724819 100644
--- a/net/ax25/ax25_in.c
+++ b/net/ax25/ax25_in.c
@@ -422,7 +422,7 @@ static int ax25_rcv(struct sk_buff *skb, struct net_device *dev,
 
         if (sk) {
                 if (!sock_flag(sk, SOCK_DEAD))
-                        sk->sk_data_ready(sk, skb->len);
+                        sk->sk_data_ready(sk);
                 sock_put(sk);
         } else {
 free:
diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index f59e00c2daa9..ef5e5b04f34f 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -1271,7 +1271,7 @@ static void l2cap_sock_teardown_cb(struct l2cap_chan *chan, int err)
 
                 if (parent) {
                         bt_accept_unlink(sk);
-                        parent->sk_data_ready(parent, 0);
+                        parent->sk_data_ready(parent);
                 } else {
                         sk->sk_state_change(sk);
                 }
@@ -1327,7 +1327,7 @@ static void l2cap_sock_ready_cb(struct l2cap_chan *chan)
         sk->sk_state_change(sk);
 
         if (parent)
-                parent->sk_data_ready(parent, 0);
+                parent->sk_data_ready(parent);
 
         release_sock(sk);
 }
@@ -1340,7 +1340,7 @@ static void l2cap_sock_defer_cb(struct l2cap_chan *chan)
 
         parent = bt_sk(sk)->parent;
         if (parent)
-                parent->sk_data_ready(parent, 0);
+                parent->sk_data_ready(parent);
 
         release_sock(sk);
 }
diff --git a/net/bluetooth/rfcomm/core.c b/net/bluetooth/rfcomm/core.c
index 633cceeb943e..cf620260affa 100644
--- a/net/bluetooth/rfcomm/core.c
+++ b/net/bluetooth/rfcomm/core.c
@@ -186,9 +186,9 @@ static void rfcomm_l2state_change(struct sock *sk)
         rfcomm_schedule();
 }
 
-static void rfcomm_l2data_ready(struct sock *sk, int bytes)
+static void rfcomm_l2data_ready(struct sock *sk)
 {
-        BT_DBG("%p bytes %d", sk, bytes);
+        BT_DBG("%p", sk);
         rfcomm_schedule();
 }
 
diff --git a/net/bluetooth/rfcomm/sock.c b/net/bluetooth/rfcomm/sock.c
index eabd25ab5ad9..c603a5eb4720 100644
--- a/net/bluetooth/rfcomm/sock.c
+++ b/net/bluetooth/rfcomm/sock.c
@@ -54,7 +54,7 @@ static void rfcomm_sk_data_ready(struct rfcomm_dlc *d, struct sk_buff *skb)
 
         atomic_add(skb->len, &sk->sk_rmem_alloc);
         skb_queue_tail(&sk->sk_receive_queue, skb);
-        sk->sk_data_ready(sk, skb->len);
+        sk->sk_data_ready(sk);
 
         if (atomic_read(&sk->sk_rmem_alloc) >= sk->sk_rcvbuf)
                 rfcomm_dlc_throttle(d);
@@ -84,7 +84,7 @@ static void rfcomm_sk_state_change(struct rfcomm_dlc *d, int err)
                         sock_set_flag(sk, SOCK_ZAPPED);
                         bt_accept_unlink(sk);
                 }
-                parent->sk_data_ready(parent, 0);
+                parent->sk_data_ready(parent);
         } else {
                 if (d->state == BT_CONNECTED)
                         rfcomm_session_getaddr(d->session,
diff --git a/net/bluetooth/sco.c b/net/bluetooth/sco.c
index ab1e6fcca4c5..c06dbd3938e8 100644
--- a/net/bluetooth/sco.c
+++ b/net/bluetooth/sco.c
@@ -1024,7 +1024,7 @@ static void sco_conn_ready(struct sco_conn *conn)
                         sk->sk_state = BT_CONNECTED;
 
                 /* Wake up parent */
-                parent->sk_data_ready(parent, 1);
+                parent->sk_data_ready(parent);
 
                 bh_unlock_sock(parent);
 
diff --git a/net/bridge/br_input.c b/net/bridge/br_input.c
index d0cca3c65f01..7985deaff52f 100644
--- a/net/bridge/br_input.c
+++ b/net/bridge/br_input.c
@@ -73,7 +73,7 @@ int br_handle_frame_finish(struct sk_buff *skb)
                 goto drop;
 
         if (!br_allowed_ingress(p->br, nbp_get_vlan_info(p), skb, &vid))
-                goto drop;
+                goto out;
 
         /* insert into forwarding database after filtering to avoid spoofing */
         br = p->br;
diff --git a/net/bridge/br_vlan.c b/net/bridge/br_vlan.c
index 91510712c7a7..4a3716102789 100644
--- a/net/bridge/br_vlan.c
+++ b/net/bridge/br_vlan.c
@@ -170,7 +170,7 @@ bool br_allowed_ingress(struct net_bridge *br, struct net_port_vlans *v,
          * rejected.
          */
         if (!v)
-                return false;
+                goto drop;
 
         /* If vlan tx offload is disabled on bridge device and frame was
          * sent from vlan device on the bridge device, it does not have
@@ -193,7 +193,7 @@ bool br_allowed_ingress(struct net_bridge *br, struct net_port_vlans *v,
                  * vlan untagged or priority-tagged traffic belongs to.
                  */
                 if (pvid == VLAN_N_VID)
-                        return false;
+                        goto drop;
 
                 /* PVID is set on this port.  Any untagged or priority-tagged
                  * ingress frame is considered to belong to this vlan.
@@ -216,7 +216,8 @@ bool br_allowed_ingress(struct net_bridge *br, struct net_port_vlans *v,
         /* Frame had a valid vlan tag.  See if vlan is allowed */
         if (test_bit(*vid, v->vlan_bitmap))
                 return true;
-
+drop:
+        kfree_skb(skb);
         return false;
 }
 
diff --git a/net/caif/caif_socket.c b/net/caif/caif_socket.c
index d6be3edb7a43..e8437094d15f 100644
--- a/net/caif/caif_socket.c
+++ b/net/caif/caif_socket.c
@@ -124,7 +124,6 @@ static void caif_flow_ctrl(struct sock *sk, int mode)
 static int caif_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
 {
         int err;
-        int skb_len;
         unsigned long flags;
         struct sk_buff_head *list = &sk->sk_receive_queue;
         struct caifsock *cf_sk = container_of(sk, struct caifsock, sk);
@@ -153,14 +152,13 @@ static int caif_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
          * may be freed by other threads of control pulling packets
          * from the queue.
          */
-        skb_len = skb->len;
         spin_lock_irqsave(&list->lock, flags);
         if (!sock_flag(sk, SOCK_DEAD))
                 __skb_queue_tail(list, skb);
         spin_unlock_irqrestore(&list->lock, flags);
 
         if (!sock_flag(sk, SOCK_DEAD))
-                sk->sk_data_ready(sk, skb_len);
+                sk->sk_data_ready(sk);
         else
                 kfree_skb(skb);
         return 0;
diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c
index 4f55f9ce63fa..dac7f9b98687 100644
--- a/net/ceph/messenger.c
+++ b/net/ceph/messenger.c
@@ -383,7 +383,7 @@ static void con_sock_state_closed(struct ceph_connection *con)
  */
 
 /* data available on socket, or listen socket received a connect */
-static void ceph_sock_data_ready(struct sock *sk, int count_unused)
+static void ceph_sock_data_ready(struct sock *sk)
 {
         struct ceph_connection *con = sk->sk_user_data;
         if (atomic_read(&con->msgr->stopping)) {
diff --git a/net/core/dev.c b/net/core/dev.c
index 14dac0654f28..5b3042e69f85 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -2284,7 +2284,7 @@ EXPORT_SYMBOL(skb_checksum_help);
 __be16 skb_network_protocol(struct sk_buff *skb, int *depth)
 {
         __be16 type = skb->protocol;
-        int vlan_depth = ETH_HLEN;
+        int vlan_depth = skb->mac_len;
 
         /* Tunnel gso handlers can set protocol to ethernet. */
         if (type == htons(ETH_P_TEB)) {
diff --git a/net/core/dst.c b/net/core/dst.c
index ca4231ec7347..80d6286c8b62 100644
--- a/net/core/dst.c
+++ b/net/core/dst.c
@@ -142,12 +142,12 @@ loop:
         mutex_unlock(&dst_gc_mutex);
 }
 
-int dst_discard(struct sk_buff *skb)
+int dst_discard_sk(struct sock *sk, struct sk_buff *skb)
 {
         kfree_skb(skb);
         return 0;
 }
-EXPORT_SYMBOL(dst_discard);
+EXPORT_SYMBOL(dst_discard_sk);
 
 const u32 dst_default_metrics[RTAX_MAX + 1] = {
         /* This initializer is needed to force linker to place this variable
@@ -184,7 +184,7 @@ void *dst_alloc(struct dst_ops *ops, struct net_device *dev,
         dst->xfrm = NULL;
 #endif
         dst->input = dst_discard;
-        dst->output = dst_discard;
+        dst->output = dst_discard_sk;
         dst->error = 0;
         dst->obsolete = initial_obsolete;
         dst->header_len = 0;
@@ -209,8 +209,10 @@ static void ___dst_free(struct dst_entry *dst)
         /* The first case (dev==NULL) is required, when
            protocol module is unloaded.
          */
-        if (dst->dev == NULL || !(dst->dev->flags&IFF_UP))
-                dst->input = dst->output = dst_discard;
+        if (dst->dev == NULL || !(dst->dev->flags&IFF_UP)) {
+                dst->input = dst_discard;
+                dst->output = dst_discard_sk;
+        }
         dst->obsolete = DST_OBSOLETE_DEAD;
 }
 
@@ -361,7 +363,8 @@ static void dst_ifdown(struct dst_entry *dst, struct net_device *dev,
                 return;
 
         if (!unregister) {
-                dst->input = dst->output = dst_discard;
+                dst->input = dst_discard;
+                dst->output = dst_discard_sk;
         } else {
                 dst->dev = dev_net(dst->dev)->loopback_dev;
                 dev_hold(dst->dev);
diff --git a/net/core/filter.c b/net/core/filter.c
index e08b3822c72a..cd58614660cf 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -600,6 +600,9 @@ static u64 __skb_get_nlattr(u64 ctx, u64 A, u64 X, u64 r4, u64 r5)
         if (skb_is_nonlinear(skb))
                 return 0;
 
+        if (skb->len < sizeof(struct nlattr))
+                return 0;
+
         if (A > skb->len - sizeof(struct nlattr))
                 return 0;
 
@@ -618,11 +621,14 @@ static u64 __skb_get_nlattr_nest(u64 ctx, u64 A, u64 X, u64 r4, u64 r5)
         if (skb_is_nonlinear(skb))
                 return 0;
 
+        if (skb->len < sizeof(struct nlattr))
+                return 0;
+
         if (A > skb->len - sizeof(struct nlattr))
                 return 0;
 
         nla = (struct nlattr *) &skb->data[A];
-        if (nla->nla_len > A - skb->len)
+        if (nla->nla_len > skb->len - A)
                 return 0;
 
         nla = nla_find_nested(nla, X);
@@ -1737,7 +1743,6 @@ void sk_decode_filter(struct sock_filter *filt, struct sock_filter *to)
                 [BPF_S_ANC_RXHASH]      = BPF_LD|BPF_B|BPF_ABS,
                 [BPF_S_ANC_CPU]         = BPF_LD|BPF_B|BPF_ABS,
                 [BPF_S_ANC_ALU_XOR_X]   = BPF_LD|BPF_B|BPF_ABS,
-                [BPF_S_ANC_SECCOMP_LD_W] = BPF_LD|BPF_B|BPF_ABS,
                 [BPF_S_ANC_VLAN_TAG]    = BPF_LD|BPF_B|BPF_ABS,
                 [BPF_S_ANC_VLAN_TAG_PRESENT] = BPF_LD|BPF_B|BPF_ABS,
                 [BPF_S_ANC_PAY_OFFSET]  = BPF_LD|BPF_B|BPF_ABS,
diff --git a/net/core/pktgen.c b/net/core/pktgen.c
index d068ec25db1e..0304f981f7ff 100644
--- a/net/core/pktgen.c
+++ b/net/core/pktgen.c
@@ -3338,7 +3338,9 @@ static void pktgen_xmit(struct pktgen_dev *pkt_dev)
         queue_map = skb_get_queue_mapping(pkt_dev->skb);
         txq = netdev_get_tx_queue(odev, queue_map);
 
-        __netif_tx_lock_bh(txq);
+        local_bh_disable();
+
+        HARD_TX_LOCK(odev, txq, smp_processor_id());
 
         if (unlikely(netif_xmit_frozen_or_drv_stopped(txq))) {
                 ret = NETDEV_TX_BUSY;
@@ -3374,7 +3376,9 @@ static void pktgen_xmit(struct pktgen_dev *pkt_dev)
                 pkt_dev->last_ok = 0;
         }
 unlock:
-        __netif_tx_unlock_bh(txq);
+        HARD_TX_UNLOCK(odev, txq);
+
+        local_bh_enable();
 
         /* If pkt_dev->count is zero, then run forever */
         if ((pkt_dev->count != 0) && (pkt_dev->sofar >= pkt_dev->count)) {
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 30c7d35dd862..1b62343f5837 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -3458,8 +3458,6 @@ static void sock_rmem_free(struct sk_buff *skb)
  */
 int sock_queue_err_skb(struct sock *sk, struct sk_buff *skb)
 {
-        int len = skb->len;
-
         if (atomic_read(&sk->sk_rmem_alloc) + skb->truesize >=
             (unsigned int)sk->sk_rcvbuf)
                 return -ENOMEM;
@@ -3474,7 +3472,7 @@ int sock_queue_err_skb(struct sock *sk, struct sk_buff *skb)
 
         skb_queue_tail(&sk->sk_error_queue, skb);
         if (!sock_flag(sk, SOCK_DEAD))
-                sk->sk_data_ready(sk, len);
+                sk->sk_data_ready(sk);
         return 0;
 }
 EXPORT_SYMBOL(sock_queue_err_skb);
@@ -3937,12 +3935,14 @@ EXPORT_SYMBOL_GPL(skb_scrub_packet);
 unsigned int skb_gso_transport_seglen(const struct sk_buff *skb)
 {
         const struct skb_shared_info *shinfo = skb_shinfo(skb);
-        unsigned int hdr_len;
 
         if (likely(shinfo->gso_type & (SKB_GSO_TCPV4 | SKB_GSO_TCPV6)))
-                hdr_len = tcp_hdrlen(skb);
-        else
-                hdr_len = sizeof(struct udphdr);
-        return hdr_len + shinfo->gso_size;
+                return tcp_hdrlen(skb) + shinfo->gso_size;
+
+        /* UFO sets gso_size to the size of the fragmentation
+         * payload, i.e. the size of the L4 (UDP) header is already
+         * accounted for.
+         */
+        return shinfo->gso_size;
 }
 EXPORT_SYMBOL_GPL(skb_gso_transport_seglen);
diff --git a/net/core/sock.c b/net/core/sock.c
index c0fc6bdad1e3..b4fff008136f 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -428,7 +428,7 @@ int sock_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
         spin_unlock_irqrestore(&list->lock, flags);
 
         if (!sock_flag(sk, SOCK_DEAD))
-                sk->sk_data_ready(sk, skb_len);
+                sk->sk_data_ready(sk);
         return 0;
 }
 EXPORT_SYMBOL(sock_queue_rcv_skb);
@@ -2196,7 +2196,7 @@ static void sock_def_error_report(struct sock *sk)
         rcu_read_unlock();
 }
 
-static void sock_def_readable(struct sock *sk, int len)
+static void sock_def_readable(struct sock *sk)
 {
         struct socket_wq *wq;
 
diff --git a/net/dccp/input.c b/net/dccp/input.c
index 14cdafad7a90..3c8ec7d4a34e 100644
--- a/net/dccp/input.c
+++ b/net/dccp/input.c
@@ -28,7 +28,7 @@ static void dccp_enqueue_skb(struct sock *sk, struct sk_buff *skb)
         __skb_pull(skb, dccp_hdr(skb)->dccph_doff * 4);
         __skb_queue_tail(&sk->sk_receive_queue, skb);
         skb_set_owner_r(skb, sk);
-        sk->sk_data_ready(sk, 0);
+        sk->sk_data_ready(sk);
 }
 
 static void dccp_fin(struct sock *sk, struct sk_buff *skb)
diff --git a/net/dccp/minisocks.c b/net/dccp/minisocks.c
index 9e2f78bc1553..c69eb9c4fbb8 100644
--- a/net/dccp/minisocks.c
+++ b/net/dccp/minisocks.c
@@ -237,7 +237,7 @@ int dccp_child_process(struct sock *parent, struct sock *child,
 
                 /* Wakeup parent, send SIGIO */
                 if (state == DCCP_RESPOND && child->sk_state != state)
-                        parent->sk_data_ready(parent, 0);
+                        parent->sk_data_ready(parent);
         } else {
                 /* Alas, it is possible again, because we do lookup
                  * in main socket hash table and lock on listening
diff --git a/net/dccp/output.c b/net/dccp/output.c
index 8876078859da..0248e8a3460c 100644
--- a/net/dccp/output.c
+++ b/net/dccp/output.c
@@ -138,7 +138,7 @@ static int dccp_transmit_skb(struct sock *sk, struct sk_buff *skb)
 
                 DCCP_INC_STATS(DCCP_MIB_OUTSEGS);
 
-                err = icsk->icsk_af_ops->queue_xmit(skb, &inet->cork.fl);
+                err = icsk->icsk_af_ops->queue_xmit(sk, skb, &inet->cork.fl);
                 return net_xmit_eval(err);
         }
         return -ENOBUFS;
diff --git a/net/decnet/dn_nsp_in.c b/net/decnet/dn_nsp_in.c
index c344163e6ac0..fe5f01485d33 100644
--- a/net/decnet/dn_nsp_in.c
+++ b/net/decnet/dn_nsp_in.c
@@ -585,7 +585,6 @@ out:
 static __inline__ int dn_queue_skb(struct sock *sk, struct sk_buff *skb, int sig, struct sk_buff_head *queue)
 {
         int err;
-        int skb_len;
 
         /* Cast skb->rcvbuf to unsigned... It's pointless, but reduces
            number of warnings when compiling with -W --ANK
@@ -600,12 +599,11 @@ static __inline__ int dn_queue_skb(struct sock *sk, struct sk_buff *skb, int sig
         if (err)
                 goto out;
 
-        skb_len = skb->len;
         skb_set_owner_r(skb, sk);
         skb_queue_tail(queue, skb);
 
         if (!sock_flag(sk, SOCK_DEAD))
-                sk->sk_data_ready(sk, skb_len);
+                sk->sk_data_ready(sk);
 out:
         return err;
 }
diff --git a/net/decnet/dn_route.c b/net/decnet/dn_route.c
index ce0cbbfe0f43..daccc4a36d80 100644
--- a/net/decnet/dn_route.c
+++ b/net/decnet/dn_route.c
@@ -752,7 +752,7 @@ static int dn_to_neigh_output(struct sk_buff *skb)
         return n->output(n, skb);
 }
 
-static int dn_output(struct sk_buff *skb)
+static int dn_output(struct sock *sk, struct sk_buff *skb)
 {
         struct dst_entry *dst = skb_dst(skb);
         struct dn_route *rt = (struct dn_route *)dst;
@@ -838,6 +838,18 @@ drop:
  * Used to catch bugs. This should never normally get
  * called.
  */
+static int dn_rt_bug_sk(struct sock *sk, struct sk_buff *skb)
+{
+        struct dn_skb_cb *cb = DN_SKB_CB(skb);
+
+        net_dbg_ratelimited("dn_rt_bug: skb from:%04x to:%04x\n",
+                            le16_to_cpu(cb->src), le16_to_cpu(cb->dst));
+
+        kfree_skb(skb);
+
+        return NET_RX_DROP;
+}
+
 static int dn_rt_bug(struct sk_buff *skb)
 {
         struct dn_skb_cb *cb = DN_SKB_CB(skb);
@@ -1463,7 +1475,7 @@ make_route:
 
         rt->n = neigh;
         rt->dst.lastuse = jiffies;
-        rt->dst.output = dn_rt_bug;
+        rt->dst.output = dn_rt_bug_sk;
         switch (res.type) {
         case RTN_UNICAST:
                 rt->dst.input = dn_forward;
diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c
index ec4f762efda5..94213c891565 100644
--- a/net/ipv4/ip_gre.c
+++ b/net/ipv4/ip_gre.c
@@ -463,6 +463,7 @@ static const struct net_device_ops ipgre_netdev_ops = {
 static void ipgre_tunnel_setup(struct net_device *dev)
 {
         dev->netdev_ops         = &ipgre_netdev_ops;
+        dev->type               = ARPHRD_IPGRE;
         ip_tunnel_setup(dev, ipgre_net_id);
 }
 
@@ -501,7 +502,6 @@ static int ipgre_tunnel_init(struct net_device *dev)
         memcpy(dev->dev_addr, &iph->saddr, 4);
         memcpy(dev->broadcast, &iph->daddr, 4);
 
-        dev->type               = ARPHRD_IPGRE;
         dev->flags              = IFF_NOARP;
         dev->priv_flags         &= ~IFF_XMIT_DST_RELEASE;
         dev->addr_len           = 4;
diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index 1a0755fea491..1cbeba5edff9 100644
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -101,17 +101,17 @@ int __ip_local_out(struct sk_buff *skb)
                        skb_dst(skb)->dev, dst_output);
 }
 
-int ip_local_out(struct sk_buff *skb)
+int ip_local_out_sk(struct sock *sk, struct sk_buff *skb)
 {
         int err;
 
         err = __ip_local_out(skb);
         if (likely(err == 1))
-                err = dst_output(skb);
+                err = dst_output_sk(sk, skb);
 
         return err;
 }
-EXPORT_SYMBOL_GPL(ip_local_out);
+EXPORT_SYMBOL_GPL(ip_local_out_sk);
 
 static inline int ip_select_ttl(struct inet_sock *inet, struct dst_entry *dst)
 {
@@ -226,9 +226,8 @@ static int ip_finish_output(struct sk_buff *skb)
                 return ip_finish_output2(skb);
 }
 
-int ip_mc_output(struct sk_buff *skb)
+int ip_mc_output(struct sock *sk, struct sk_buff *skb)
 {
-        struct sock *sk = skb->sk;
         struct rtable *rt = skb_rtable(skb);
         struct net_device *dev = rt->dst.dev;
 
@@ -287,7 +286,7 @@ int ip_mc_output(struct sk_buff *skb)
                             !(IPCB(skb)->flags & IPSKB_REROUTED));
 }
 
-int ip_output(struct sk_buff *skb)
+int ip_output(struct sock *sk, struct sk_buff *skb)
 {
         struct net_device *dev = skb_dst(skb)->dev;
 
@@ -315,9 +314,9 @@ static void ip_copy_addrs(struct iphdr *iph, const struct flowi4 *fl4)
                sizeof(fl4->saddr) + sizeof(fl4->daddr));
 }
 
-int ip_queue_xmit(struct sk_buff *skb, struct flowi *fl)
+/* Note: skb->sk can be different from sk, in case of tunnels */
+int ip_queue_xmit(struct sock *sk, struct sk_buff *skb, struct flowi *fl)
 {
-        struct sock *sk = skb->sk;
         struct inet_sock *inet = inet_sk(sk);
         struct ip_options_rcu *inet_opt;
         struct flowi4 *fl4;
@@ -389,6 +388,7 @@ packet_routed:
         ip_select_ident_more(skb, &rt->dst, sk,
                              (skb_shinfo(skb)->gso_segs ?: 1) - 1);
 
+        /* TODO : should we use skb->sk here instead of sk ? */
         skb->priority = sk->sk_priority;
         skb->mark = sk->sk_mark;
 
diff --git a/net/ipv4/ip_tunnel.c b/net/ipv4/ip_tunnel.c
index e77381d1df9a..484d0ce27ef7 100644
--- a/net/ipv4/ip_tunnel.c
+++ b/net/ipv4/ip_tunnel.c
@@ -670,7 +670,7 @@ void ip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev,
                 return;
         }
 
-        err = iptunnel_xmit(rt, skb, fl4.saddr, fl4.daddr, protocol,
+        err = iptunnel_xmit(skb->sk, rt, skb, fl4.saddr, fl4.daddr, protocol,
                             tos, ttl, df, !net_eq(tunnel->net, dev_net(dev)));
         iptunnel_xmit_stats(err, &dev->stats, dev->tstats);
 
diff --git a/net/ipv4/ip_tunnel_core.c b/net/ipv4/ip_tunnel_core.c
index e0c2b1d2ea4e..bcf206c79005 100644
--- a/net/ipv4/ip_tunnel_core.c
+++ b/net/ipv4/ip_tunnel_core.c
@@ -46,7 +46,7 @@
 #include <net/netns/generic.h>
 #include <net/rtnetlink.h>
 
-int iptunnel_xmit(struct rtable *rt, struct sk_buff *skb,
+int iptunnel_xmit(struct sock *sk, struct rtable *rt, struct sk_buff *skb,
                   __be32 src, __be32 dst, __u8 proto,
                   __u8 tos, __u8 ttl, __be16 df, bool xnet)
 {
@@ -76,7 +76,7 @@ int iptunnel_xmit(struct rtable *rt, struct sk_buff *skb,
         iph->ttl        =       ttl;
         __ip_select_ident(iph, &rt->dst, (skb_shinfo(skb)->gso_segs ?: 1) - 1);
 
-        err = ip_local_out(skb);
+        err = ip_local_out_sk(sk, skb);
         if (unlikely(net_xmit_eval(err)))
                 pkt_len = 0;
         return pkt_len;
diff --git a/net/ipv4/ip_vti.c b/net/ipv4/ip_vti.c
index 687ddef4e574..afcee51b90ed 100644
--- a/net/ipv4/ip_vti.c
+++ b/net/ipv4/ip_vti.c
@@ -337,6 +337,7 @@ static const struct net_device_ops vti_netdev_ops = {
 static void vti_tunnel_setup(struct net_device *dev)
 {
         dev->netdev_ops         = &vti_netdev_ops;
+        dev->type               = ARPHRD_TUNNEL;
         ip_tunnel_setup(dev, vti_net_id);
 }
 
@@ -348,7 +349,6 @@ static int vti_tunnel_init(struct net_device *dev)
         memcpy(dev->dev_addr, &iph->saddr, 4);
         memcpy(dev->broadcast, &iph->daddr, 4);
 
-        dev->type               = ARPHRD_TUNNEL;
         dev->hard_header_len    = LL_MAX_HEADER + sizeof(struct iphdr);
         dev->mtu                = ETH_DATA_LEN;
         dev->flags              = IFF_NOARP;
diff --git a/net/ipv4/ping.c b/net/ipv4/ping.c
index f4b19e5dde54..8210964a9f19 100644
--- a/net/ipv4/ping.c
+++ b/net/ipv4/ping.c
@@ -252,26 +252,33 @@ int ping_init_sock(struct sock *sk)
 {
         struct net *net = sock_net(sk);
         kgid_t group = current_egid();
-        struct group_info *group_info = get_current_groups();
-        int i, j, count = group_info->ngroups;
+        struct group_info *group_info;
+        int i, j, count;
         kgid_t low, high;
+        int ret = 0;
 
         inet_get_ping_group_range_net(net, &low, &high);
         if (gid_lte(low, group) && gid_lte(group, high))
                 return 0;
 
+        group_info = get_current_groups();
+        count = group_info->ngroups;
         for (i = 0; i < group_info->nblocks; i++) {
                 int cp_count = min_t(int, NGROUPS_PER_BLOCK, count);
                 for (j = 0; j < cp_count; j++) {
                         kgid_t gid = group_info->blocks[i][j];
                         if (gid_lte(low, gid) && gid_lte(gid, high))
-                                return 0;
+                                goto out_release_group;
                 }
 
                 count -= cp_count;
         }
 
-        return -EACCES;
+        ret = -EACCES;
+
+out_release_group:
+        put_group_info(group_info);
+        return ret;
 }
 EXPORT_SYMBOL_GPL(ping_init_sock);
 
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 34d094cadb11..1485aafcad59 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -1129,7 +1129,7 @@ static void ipv4_link_failure(struct sk_buff *skb)
                 dst_set_expires(&rt->dst, 0);
 }
 
-static int ip_rt_bug(struct sk_buff *skb)
+static int ip_rt_bug(struct sock *sk, struct sk_buff *skb)
 {
         pr_debug("%s: %pI4 -> %pI4, %s\n",
                  __func__, &ip_hdr(skb)->saddr, &ip_hdr(skb)->daddr,
@@ -2218,7 +2218,7 @@ struct dst_entry *ipv4_blackhole_route(struct net *net, struct dst_entry *dst_or
 
                 new->__use = 1;
                 new->input = dst_discard;
-                new->output = dst_discard;
+                new->output = dst_discard_sk;
 
                 new->dev = ort->dst.dev;
                 if (new->dev)
@@ -2357,7 +2357,7 @@ static int rt_fill_info(struct net *net,  __be32 dst, __be32 src,
                         }
                 } else
 #endif
-                        if (nla_put_u32(skb, RTA_IIF, rt->rt_iif))
+                        if (nla_put_u32(skb, RTA_IIF, skb->dev->ifindex))
                                 goto nla_put_failure;
         }
 
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index e1661f46fd19..d6b46eb2f94c 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -4413,7 +4413,7 @@ queue_and_out:
                 if (eaten > 0)
                         kfree_skb_partial(skb, fragstolen);
                 if (!sock_flag(sk, SOCK_DEAD))
-                        sk->sk_data_ready(sk, 0);
+                        sk->sk_data_ready(sk);
                 return;
         }
 
@@ -4914,7 +4914,7 @@ static void tcp_urg(struct sock *sk, struct sk_buff *skb, const struct tcphdr *t
                                 BUG();
                         tp->urg_data = TCP_URG_VALID | tmp;
                         if (!sock_flag(sk, SOCK_DEAD))
-                                sk->sk_data_ready(sk, 0);
+                                sk->sk_data_ready(sk);
                 }
         }
 }
@@ -5000,11 +5000,11 @@ static bool tcp_dma_try_early_copy(struct sock *sk, struct sk_buff *skb,
                     (tcp_flag_word(tcp_hdr(skb)) & TCP_FLAG_PSH) ||
                     (atomic_read(&sk->sk_rmem_alloc) > (sk->sk_rcvbuf >> 1))) {
                         tp->ucopy.wakeup = 1;
-                        sk->sk_data_ready(sk, 0);
+                        sk->sk_data_ready(sk);
                 }
         } else if (chunk > 0) {
                 tp->ucopy.wakeup = 1;
-                sk->sk_data_ready(sk, 0);
+                sk->sk_data_ready(sk);
         }
 out:
         return copied_early;
@@ -5275,7 +5275,7 @@ no_ack:
 #endif
                         if (eaten)
                                 kfree_skb_partial(skb, fragstolen);
-                        sk->sk_data_ready(sk, 0);
+                        sk->sk_data_ready(sk);
                         return;
                 }
         }
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 6379894ec210..438f3b95143d 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -1434,7 +1434,7 @@ static int tcp_v4_conn_req_fastopen(struct sock *sk,
                 tp->rcv_nxt = TCP_SKB_CB(skb)->end_seq;
                 tp->syn_data_acked = 1;
         }
-        sk->sk_data_ready(sk, 0);
+        sk->sk_data_ready(sk);
         bh_unlock_sock(child);
         sock_put(child);
         WARN_ON(req->sk == NULL);
diff --git a/net/ipv4/tcp_minisocks.c b/net/ipv4/tcp_minisocks.c
index ca788ada5bd3..05c1b155251d 100644
--- a/net/ipv4/tcp_minisocks.c
+++ b/net/ipv4/tcp_minisocks.c
@@ -745,7 +745,7 @@ int tcp_child_process(struct sock *parent, struct sock *child,
                                             skb->len);
                 /* Wakeup parent, send SIGIO */
                 if (state == TCP_SYN_RECV && child->sk_state != state)
-                        parent->sk_data_ready(parent, 0);
+                        parent->sk_data_ready(parent);
         } else {
                 /* Alas, it is possible again, because we do lookup
                  * in main socket hash table and lock on listening
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index 699fb102e971..025e25093984 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -981,7 +981,7 @@ static int tcp_transmit_skb(struct sock *sk, struct sk_buff *skb, int clone_it,
                 TCP_ADD_STATS(sock_net(sk), TCP_MIB_OUTSEGS,
                               tcp_skb_pcount(skb));
 
-        err = icsk->icsk_af_ops->queue_xmit(skb, &inet->cork.fl);
+        err = icsk->icsk_af_ops->queue_xmit(sk, skb, &inet->cork.fl);
         if (likely(err <= 0))
                 return err;
 
diff --git a/net/ipv4/xfrm4_output.c b/net/ipv4/xfrm4_output.c
index baa0f63731fd..40e701f2e1e0 100644
--- a/net/ipv4/xfrm4_output.c
+++ b/net/ipv4/xfrm4_output.c
@@ -86,7 +86,7 @@ int xfrm4_output_finish(struct sk_buff *skb)
         return xfrm_output(skb);
 }
 
-int xfrm4_output(struct sk_buff *skb)
+int xfrm4_output(struct sock *sk, struct sk_buff *skb)
 {
         struct dst_entry *dst = skb_dst(skb);
         struct xfrm_state *x = dst->xfrm;
diff --git a/net/ipv6/inet6_connection_sock.c b/net/ipv6/inet6_connection_sock.c
index c9138189415a..d4ade34ab375 100644
--- a/net/ipv6/inet6_connection_sock.c
+++ b/net/ipv6/inet6_connection_sock.c
@@ -224,9 +224,8 @@ static struct dst_entry *inet6_csk_route_socket(struct sock *sk,
         return dst;
 }
 
-int inet6_csk_xmit(struct sk_buff *skb, struct flowi *fl_unused)
+int inet6_csk_xmit(struct sock *sk, struct sk_buff *skb, struct flowi *fl_unused)
 {
-        struct sock *sk = skb->sk;
         struct ipv6_pinfo *np = inet6_sk(sk);
         struct flowi6 fl6;
         struct dst_entry *dst;
diff --git a/net/ipv6/ip6_gre.c b/net/ipv6/ip6_gre.c
index c98338b81d30..9d921462b57f 100644
--- a/net/ipv6/ip6_gre.c
+++ b/net/ipv6/ip6_gre.c
@@ -1559,6 +1559,15 @@ static int ip6gre_changelink(struct net_device *dev, struct nlattr *tb[],
         return 0;
 }
 
+static void ip6gre_dellink(struct net_device *dev, struct list_head *head)
+{
+        struct net *net = dev_net(dev);
+        struct ip6gre_net *ign = net_generic(net, ip6gre_net_id);
+
+        if (dev != ign->fb_tunnel_dev)
+                unregister_netdevice_queue(dev, head);
+}
+
 static size_t ip6gre_get_size(const struct net_device *dev)
 {
         return
@@ -1636,6 +1645,7 @@ static struct rtnl_link_ops ip6gre_link_ops __read_mostly = {
         .validate       = ip6gre_tunnel_validate,
         .newlink        = ip6gre_newlink,
         .changelink     = ip6gre_changelink,
+        .dellink        = ip6gre_dellink,
         .get_size       = ip6gre_get_size,
         .fill_info      = ip6gre_fill_info,
 };
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index 3284d61577c0..40e7581374f7 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -132,7 +132,7 @@ static int ip6_finish_output(struct sk_buff *skb)
                 return ip6_finish_output2(skb);
 }
 
-int ip6_output(struct sk_buff *skb)
+int ip6_output(struct sock *sk, struct sk_buff *skb)
 {
         struct net_device *dev = skb_dst(skb)->dev;
         struct inet6_dev *idev = ip6_dst_idev(skb_dst(skb));
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 5015c50a5ba7..4011617cca68 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -84,9 +84,9 @@ static void		ip6_dst_ifdown(struct dst_entry *,
 static int               ip6_dst_gc(struct dst_ops *ops);
 
 static int              ip6_pkt_discard(struct sk_buff *skb);
-static int              ip6_pkt_discard_out(struct sk_buff *skb);
+static int              ip6_pkt_discard_out(struct sock *sk, struct sk_buff *skb);
 static int              ip6_pkt_prohibit(struct sk_buff *skb);
-static int              ip6_pkt_prohibit_out(struct sk_buff *skb);
+static int              ip6_pkt_prohibit_out(struct sock *sk, struct sk_buff *skb);
 static void             ip6_link_failure(struct sk_buff *skb);
 static void             ip6_rt_update_pmtu(struct dst_entry *dst, struct sock *sk,
                                            struct sk_buff *skb, u32 mtu);
@@ -290,7 +290,7 @@ static const struct rt6_info ip6_blk_hole_entry_template = {
                 .obsolete       = DST_OBSOLETE_FORCE_CHK,
                 .error          = -EINVAL,
                 .input          = dst_discard,
-                .output         = dst_discard,
+                .output         = dst_discard_sk,
         },
         .rt6i_flags     = (RTF_REJECT | RTF_NONEXTHOP),
         .rt6i_protocol  = RTPROT_KERNEL,
@@ -1058,7 +1058,7 @@ struct dst_entry *ip6_blackhole_route(struct net *net, struct dst_entry *dst_ori
 
                 new->__use = 1;
                 new->input = dst_discard;
-                new->output = dst_discard;
+                new->output = dst_discard_sk;
 
                 if (dst_metrics_read_only(&ort->dst))
                         new->_metrics = ort->dst._metrics;
@@ -1338,7 +1338,7 @@ static unsigned int ip6_mtu(const struct dst_entry *dst)
         unsigned int mtu = dst_metric_raw(dst, RTAX_MTU);
 
         if (mtu)
-                return mtu;
+                goto out;
 
         mtu = IPV6_MIN_MTU;
 
@@ -1348,7 +1348,8 @@ static unsigned int ip6_mtu(const struct dst_entry *dst)
                 mtu = idev->cnf.mtu6;
         rcu_read_unlock();
 
-        return mtu;
+out:
+        return min_t(unsigned int, mtu, IP6_MAX_MTU);
 }
 
 static struct dst_entry *icmp6_dst_gc_list;
@@ -1576,7 +1577,7 @@ int ip6_route_add(struct fib6_config *cfg)
                 switch (cfg->fc_type) {
                 case RTN_BLACKHOLE:
                         rt->dst.error = -EINVAL;
-                        rt->dst.output = dst_discard;
+                        rt->dst.output = dst_discard_sk;
                         rt->dst.input = dst_discard;
                         break;
                 case RTN_PROHIBIT:
@@ -2128,7 +2129,7 @@ static int ip6_pkt_discard(struct sk_buff *skb)
         return ip6_pkt_drop(skb, ICMPV6_NOROUTE, IPSTATS_MIB_INNOROUTES);
 }
 
-static int ip6_pkt_discard_out(struct sk_buff *skb)
+static int ip6_pkt_discard_out(struct sock *sk, struct sk_buff *skb)
 {
         skb->dev = skb_dst(skb)->dev;
         return ip6_pkt_drop(skb, ICMPV6_NOROUTE, IPSTATS_MIB_OUTNOROUTES);
@@ -2139,7 +2140,7 @@ static int ip6_pkt_prohibit(struct sk_buff *skb)
         return ip6_pkt_drop(skb, ICMPV6_ADM_PROHIBITED, IPSTATS_MIB_INNOROUTES);
 }
 
-static int ip6_pkt_prohibit_out(struct sk_buff *skb)
+static int ip6_pkt_prohibit_out(struct sock *sk, struct sk_buff *skb)
 {
         skb->dev = skb_dst(skb)->dev;
         return ip6_pkt_drop(skb, ICMPV6_ADM_PROHIBITED, IPSTATS_MIB_OUTNOROUTES);
diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
index 1693c8d885f0..8da8268d65f8 100644
--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c
@@ -974,8 +974,9 @@ static netdev_tx_t ipip6_tunnel_xmit(struct sk_buff *skb,
                 goto out;
         }
 
-        err = iptunnel_xmit(rt, skb, fl4.saddr, fl4.daddr, IPPROTO_IPV6, tos,
-                            ttl, df, !net_eq(tunnel->net, dev_net(dev)));
+        err = iptunnel_xmit(skb->sk, rt, skb, fl4.saddr, fl4.daddr,
+                            IPPROTO_IPV6, tos, ttl, df,
+                            !net_eq(tunnel->net, dev_net(dev)));
         iptunnel_xmit_stats(err, &dev->stats, dev->tstats);
         return NETDEV_TX_OK;
 
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index 5ca56cee2dae..e289830ed6e3 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -798,7 +798,7 @@ static void tcp_v6_send_response(struct sk_buff *skb, u32 seq, u32 ack, u32 win,
         __tcp_v6_send_check(buff, &fl6.saddr, &fl6.daddr);
 
         fl6.flowi6_proto = IPPROTO_TCP;
-        if (rt6_need_strict(&fl6.daddr) || !oif)
+        if (rt6_need_strict(&fl6.daddr) && !oif)
                 fl6.flowi6_oif = inet6_iif(skb);
         else
                 fl6.flowi6_oif = oif;
diff --git a/net/ipv6/xfrm6_output.c b/net/ipv6/xfrm6_output.c
index 6cd625e37706..19ef329bdbf8 100644
--- a/net/ipv6/xfrm6_output.c
+++ b/net/ipv6/xfrm6_output.c
@@ -163,7 +163,7 @@ static int __xfrm6_output(struct sk_buff *skb)
         return x->outer_mode->afinfo->output_finish(skb);
 }
 
-int xfrm6_output(struct sk_buff *skb)
+int xfrm6_output(struct sock *sk, struct sk_buff *skb)
 {
         return NF_HOOK(NFPROTO_IPV6, NF_INET_POST_ROUTING, skb, NULL,
                        skb_dst(skb)->dev, __xfrm6_output);
diff --git a/net/iucv/af_iucv.c b/net/iucv/af_iucv.c
index a5e03119107a..01e77b0ae075 100644
--- a/net/iucv/af_iucv.c
+++ b/net/iucv/af_iucv.c
@@ -1757,7 +1757,7 @@ static int iucv_callback_connreq(struct iucv_path *path,
 
         /* Wake up accept */
         nsk->sk_state = IUCV_CONNECTED;
-        sk->sk_data_ready(sk, 1);
+        sk->sk_data_ready(sk);
         err = 0;
 fail:
         bh_unlock_sock(sk);
@@ -1968,7 +1968,7 @@ static int afiucv_hs_callback_syn(struct sock *sk, struct sk_buff *skb)
         if (!err) {
                 iucv_accept_enqueue(sk, nsk);
                 nsk->sk_state = IUCV_CONNECTED;
-                sk->sk_data_ready(sk, 1);
+                sk->sk_data_ready(sk);
         } else
                 iucv_sock_kill(nsk);
         bh_unlock_sock(sk);
diff --git a/net/key/af_key.c b/net/key/af_key.c
index e72589a8400d..f3c83073afc4 100644
--- a/net/key/af_key.c
+++ b/net/key/af_key.c
@@ -205,7 +205,7 @@ static int pfkey_broadcast_one(struct sk_buff *skb, struct sk_buff **skb2,
                 if (atomic_read(&sk->sk_rmem_alloc) <= sk->sk_rcvbuf) {
                         skb_set_owner_r(*skb2, sk);
                         skb_queue_tail(&sk->sk_receive_queue, *skb2);
-                        sk->sk_data_ready(sk, (*skb2)->len);
+                        sk->sk_data_ready(sk);
                         *skb2 = NULL;
                         err = 0;
                 }
diff --git a/net/l2tp/l2tp_core.c b/net/l2tp/l2tp_core.c
index 47f7a5490555..a4e37d7158dc 100644
--- a/net/l2tp/l2tp_core.c
+++ b/net/l2tp/l2tp_core.c
@@ -1131,10 +1131,10 @@ static int l2tp_xmit_core(struct l2tp_session *session, struct sk_buff *skb,
         skb->local_df = 1;
 #if IS_ENABLED(CONFIG_IPV6)
         if (tunnel->sock->sk_family == PF_INET6 && !tunnel->v4mapped)
-                error = inet6_csk_xmit(skb, NULL);
+                error = inet6_csk_xmit(tunnel->sock, skb, NULL);
         else
 #endif
-                error = ip_queue_xmit(skb, fl);
+                error = ip_queue_xmit(tunnel->sock, skb, fl);
 
         /* Update stats */
         if (error >= 0) {
diff --git a/net/l2tp/l2tp_ip.c b/net/l2tp/l2tp_ip.c
index 0b44d855269c..3397fe6897c0 100644
--- a/net/l2tp/l2tp_ip.c
+++ b/net/l2tp/l2tp_ip.c
@@ -487,7 +487,7 @@ static int l2tp_ip_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *m
 
 xmit:
         /* Queue the packet to IP for output */
-        rc = ip_queue_xmit(skb, &inet->cork.fl);
+        rc = ip_queue_xmit(sk, skb, &inet->cork.fl);
         rcu_read_unlock();
 
 error:
diff --git a/net/l2tp/l2tp_ppp.c b/net/l2tp/l2tp_ppp.c
index d276e2d4a589..950909f04ee6 100644
--- a/net/l2tp/l2tp_ppp.c
+++ b/net/l2tp/l2tp_ppp.c
@@ -753,9 +753,9 @@ static int pppol2tp_connect(struct socket *sock, struct sockaddr *uservaddr,
         session->deref = pppol2tp_session_sock_put;
 
         /* If PMTU discovery was enabled, use the MTU that was discovered */
-        dst = sk_dst_get(sk);
+        dst = sk_dst_get(tunnel->sock);
         if (dst != NULL) {
-                u32 pmtu = dst_mtu(__sk_dst_get(sk));
+                u32 pmtu = dst_mtu(__sk_dst_get(tunnel->sock));
                 if (pmtu != 0)
                         session->mtu = session->mru = pmtu -
                                 PPPOL2TP_HEADER_OVERHEAD;
diff --git a/net/netfilter/nf_conntrack_core.c b/net/netfilter/nf_conntrack_core.c
index 6dba48efe01e..75421f2ba8be 100644
--- a/net/netfilter/nf_conntrack_core.c
+++ b/net/netfilter/nf_conntrack_core.c
@@ -1795,6 +1795,7 @@ int nf_conntrack_init_net(struct net *net)
         int cpu;
 
         atomic_set(&net->ct.count, 0);
+        seqcount_init(&net->ct.generation);
 
         net->ct.pcpu_lists = alloc_percpu(struct ct_pcpu);
         if (!net->ct.pcpu_lists)
diff --git a/net/netfilter/nf_conntrack_pptp.c b/net/netfilter/nf_conntrack_pptp.c
index 7bd03decd36c..825c3e3f8305 100644
--- a/net/netfilter/nf_conntrack_pptp.c
+++ b/net/netfilter/nf_conntrack_pptp.c
@@ -605,32 +605,14 @@ static struct nf_conntrack_helper pptp __read_mostly = {
         .expect_policy          = &pptp_exp_policy,
 };
 
-static void nf_conntrack_pptp_net_exit(struct net *net)
-{
-        nf_ct_gre_keymap_flush(net);
-}
-
-static struct pernet_operations nf_conntrack_pptp_net_ops = {
-        .exit = nf_conntrack_pptp_net_exit,
-};
-
 static int __init nf_conntrack_pptp_init(void)
 {
-        int rv;
-
-        rv = nf_conntrack_helper_register(&pptp);
-        if (rv < 0)
-                return rv;
-        rv = register_pernet_subsys(&nf_conntrack_pptp_net_ops);
-        if (rv < 0)
-                nf_conntrack_helper_unregister(&pptp);
-        return rv;
+        return nf_conntrack_helper_register(&pptp);
 }
 
 static void __exit nf_conntrack_pptp_fini(void)
 {
         nf_conntrack_helper_unregister(&pptp);
-        unregister_pernet_subsys(&nf_conntrack_pptp_net_ops);
 }
 
 module_init(nf_conntrack_pptp_init);
diff --git a/net/netfilter/nf_conntrack_proto_gre.c b/net/netfilter/nf_conntrack_proto_gre.c
index 9d9c0dade602..d5665739e3b1 100644
--- a/net/netfilter/nf_conntrack_proto_gre.c
+++ b/net/netfilter/nf_conntrack_proto_gre.c
@@ -66,7 +66,7 @@ static inline struct netns_proto_gre *gre_pernet(struct net *net)
         return net_generic(net, proto_gre_net_id);
 }
 
-void nf_ct_gre_keymap_flush(struct net *net)
+static void nf_ct_gre_keymap_flush(struct net *net)
 {
         struct netns_proto_gre *net_gre = gre_pernet(net);
         struct nf_ct_gre_keymap *km, *tmp;
@@ -78,7 +78,6 @@ void nf_ct_gre_keymap_flush(struct net *net)
         }
         write_unlock_bh(&net_gre->keymap_lock);
 }
-EXPORT_SYMBOL(nf_ct_gre_keymap_flush);
 
 static inline int gre_key_cmpfn(const struct nf_ct_gre_keymap *km,
                                 const struct nf_conntrack_tuple *t)
diff --git a/net/netfilter/nf_tables_core.c b/net/netfilter/nf_tables_core.c
index 90998a6ff8b9..804105391b9a 100644
--- a/net/netfilter/nf_tables_core.c
+++ b/net/netfilter/nf_tables_core.c
@@ -25,9 +25,8 @@ static void nft_cmp_fast_eval(const struct nft_expr *expr,
                               struct nft_data data[NFT_REG_MAX + 1])
 {
         const struct nft_cmp_fast_expr *priv = nft_expr_priv(expr);
-        u32 mask;
+        u32 mask = nft_cmp_fast_mask(priv->len);
 
-        mask = ~0U >> (sizeof(priv->data) * BITS_PER_BYTE - priv->len);
         if ((data[priv->sreg].data[0] & mask) == priv->data)
                 return;
         data[NFT_REG_VERDICT].verdict = NFT_BREAK;
diff --git a/net/netfilter/nft_cmp.c b/net/netfilter/nft_cmp.c
index 954925db414d..e2b3f51c81f1 100644
--- a/net/netfilter/nft_cmp.c
+++ b/net/netfilter/nft_cmp.c
@@ -128,7 +128,7 @@ static int nft_cmp_fast_init(const struct nft_ctx *ctx,
         BUG_ON(err < 0);
         desc.len *= BITS_PER_BYTE;
 
-        mask = ~0U >> (sizeof(priv->data) * BITS_PER_BYTE - desc.len);
+        mask = nft_cmp_fast_mask(desc.len);
         priv->data = data.data[0] & mask;
         priv->len  = desc.len;
         return 0;
diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index c2d585c4f7c5..894cda0206bb 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -1653,7 +1653,7 @@ static int __netlink_sendskb(struct sock *sk, struct sk_buff *skb)
         else
 #endif /* CONFIG_NETLINK_MMAP */
                 skb_queue_tail(&sk->sk_receive_queue, skb);
-        sk->sk_data_ready(sk, len);
+        sk->sk_data_ready(sk);
         return len;
 }
 
@@ -2394,7 +2394,7 @@ out:
         return err ? : copied;
 }
 
-static void netlink_data_ready(struct sock *sk, int len)
+static void netlink_data_ready(struct sock *sk)
 {
         BUG();
 }
diff --git a/net/netrom/af_netrom.c b/net/netrom/af_netrom.c
index b74aa0755521..ede50d197e10 100644
--- a/net/netrom/af_netrom.c
+++ b/net/netrom/af_netrom.c
@@ -1011,7 +1011,7 @@ int nr_rx_frame(struct sk_buff *skb, struct net_device *dev)
         skb_queue_head(&sk->sk_receive_queue, skb);
 
         if (!sock_flag(sk, SOCK_DEAD))
-                sk->sk_data_ready(sk, skb->len);
+                sk->sk_data_ready(sk);
 
         bh_unlock_sock(sk);
 
diff --git a/net/nfc/llcp_core.c b/net/nfc/llcp_core.c
index b486f12ae243..b4671958fcf9 100644
--- a/net/nfc/llcp_core.c
+++ b/net/nfc/llcp_core.c
@@ -976,7 +976,7 @@ static void nfc_llcp_recv_connect(struct nfc_llcp_local *local,
         new_sk->sk_state = LLCP_CONNECTED;
 
         /* Wake the listening processes */
-        parent->sk_data_ready(parent, 0);
+        parent->sk_data_ready(parent);
 
         /* Send CC */
         nfc_llcp_send_cc(new_sock);
diff --git a/net/openvswitch/vport-gre.c b/net/openvswitch/vport-gre.c
index a3d6951602db..ebb6e2442554 100644
--- a/net/openvswitch/vport-gre.c
+++ b/net/openvswitch/vport-gre.c
@@ -174,7 +174,7 @@ static int gre_tnl_send(struct vport *vport, struct sk_buff *skb)
 
         skb->local_df = 1;
 
-        return iptunnel_xmit(rt, skb, fl.saddr,
+        return iptunnel_xmit(skb->sk, rt, skb, fl.saddr,
                              OVS_CB(skb)->tun_key->ipv4_dst, IPPROTO_GRE,
                              OVS_CB(skb)->tun_key->ipv4_tos,
                              OVS_CB(skb)->tun_key->ipv4_ttl, df, false);
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index 72e0c71fb01d..b85c67ccb797 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -1848,7 +1848,7 @@ static int packet_rcv(struct sk_buff *skb, struct net_device *dev,
         skb->dropcount = atomic_read(&sk->sk_drops);
         __skb_queue_tail(&sk->sk_receive_queue, skb);
         spin_unlock(&sk->sk_receive_queue.lock);
-        sk->sk_data_ready(sk, skb->len);
+        sk->sk_data_ready(sk);
         return 0;
 
 drop_n_acct:
@@ -2054,7 +2054,7 @@ static int tpacket_rcv(struct sk_buff *skb, struct net_device *dev,
         else
                 prb_clear_blk_fill_status(&po->rx_ring);
 
-        sk->sk_data_ready(sk, 0);
+        sk->sk_data_ready(sk);
 
 drop_n_restore:
         if (skb_head != skb->data && skb_shared(skb)) {
@@ -2069,7 +2069,7 @@ ring_is_full:
         po->stats.stats1.tp_drops++;
         spin_unlock(&sk->sk_receive_queue.lock);
 
-        sk->sk_data_ready(sk, 0);
+        sk->sk_data_ready(sk);
         kfree_skb(copy_skb);
         goto drop_n_restore;
 }
diff --git a/net/phonet/pep-gprs.c b/net/phonet/pep-gprs.c
index a2fba7edfd1f..66dc65e7c6a1 100644
--- a/net/phonet/pep-gprs.c
+++ b/net/phonet/pep-gprs.c
@@ -37,7 +37,7 @@
 struct gprs_dev {
         struct sock             *sk;
         void                    (*old_state_change)(struct sock *);
-        void                    (*old_data_ready)(struct sock *, int);
+        void                    (*old_data_ready)(struct sock *);
         void                    (*old_write_space)(struct sock *);
 
         struct net_device       *dev;
@@ -146,7 +146,7 @@ drop:
         return err;
 }
 
-static void gprs_data_ready(struct sock *sk, int len)
+static void gprs_data_ready(struct sock *sk)
 {
         struct gprs_dev *gp = sk->sk_user_data;
         struct sk_buff *skb;
diff --git a/net/phonet/pep.c b/net/phonet/pep.c
index e77411735de8..70a547ea5177 100644
--- a/net/phonet/pep.c
+++ b/net/phonet/pep.c
@@ -462,10 +462,9 @@ out:
 queue:
         skb->dev = NULL;
         skb_set_owner_r(skb, sk);
-        err = skb->len;
         skb_queue_tail(queue, skb);
         if (!sock_flag(sk, SOCK_DEAD))
-                sk->sk_data_ready(sk, err);
+                sk->sk_data_ready(sk);
         return NET_RX_SUCCESS;
 }
 
@@ -587,10 +586,9 @@ static int pipe_handler_do_rcv(struct sock *sk, struct sk_buff *skb)
                 pn->rx_credits--;
                 skb->dev = NULL;
                 skb_set_owner_r(skb, sk);
-                err = skb->len;
                 skb_queue_tail(&sk->sk_receive_queue, skb);
                 if (!sock_flag(sk, SOCK_DEAD))
-                        sk->sk_data_ready(sk, err);
+                        sk->sk_data_ready(sk);
                 return NET_RX_SUCCESS;
 
         case PNS_PEP_CONNECT_RESP:
@@ -698,7 +696,7 @@ static int pep_do_rcv(struct sock *sk, struct sk_buff *skb)
                 skb_queue_head(&sk->sk_receive_queue, skb);
                 sk_acceptq_added(sk);
                 if (!sock_flag(sk, SOCK_DEAD))
-                        sk->sk_data_ready(sk, 0);
+                        sk->sk_data_ready(sk);
                 return NET_RX_SUCCESS;
 
         case PNS_PEP_DISCONNECT_REQ:
diff --git a/net/rds/tcp.h b/net/rds/tcp.h
index 9cf2927d0021..65637491f728 100644
--- a/net/rds/tcp.h
+++ b/net/rds/tcp.h
@@ -61,12 +61,12 @@ void rds_tcp_state_change(struct sock *sk);
 /* tcp_listen.c */
 int rds_tcp_listen_init(void);
 void rds_tcp_listen_stop(void);
-void rds_tcp_listen_data_ready(struct sock *sk, int bytes);
+void rds_tcp_listen_data_ready(struct sock *sk);
 
 /* tcp_recv.c */
 int rds_tcp_recv_init(void);
 void rds_tcp_recv_exit(void);
-void rds_tcp_data_ready(struct sock *sk, int bytes);
+void rds_tcp_data_ready(struct sock *sk);
 int rds_tcp_recv(struct rds_connection *conn);
 void rds_tcp_inc_free(struct rds_incoming *inc);
 int rds_tcp_inc_copy_to_user(struct rds_incoming *inc, struct iovec *iov,
diff --git a/net/rds/tcp_listen.c b/net/rds/tcp_listen.c
index 7787537e9c2e..4e638f851185 100644
--- a/net/rds/tcp_listen.c
+++ b/net/rds/tcp_listen.c
@@ -108,9 +108,9 @@ static void rds_tcp_accept_worker(struct work_struct *work)
                 cond_resched();
 }
 
-void rds_tcp_listen_data_ready(struct sock *sk, int bytes)
+void rds_tcp_listen_data_ready(struct sock *sk)
 {
-        void (*ready)(struct sock *sk, int bytes);
+        void (*ready)(struct sock *sk);
 
         rdsdebug("listen data ready sk %p\n", sk);
 
@@ -132,7 +132,7 @@ void rds_tcp_listen_data_ready(struct sock *sk, int bytes)
 
 out:
         read_unlock(&sk->sk_callback_lock);
-        ready(sk, bytes);
+        ready(sk);
 }
 
 int rds_tcp_listen_init(void)
diff --git a/net/rds/tcp_recv.c b/net/rds/tcp_recv.c
index 4fac4f2bb9dc..9ae6e0a264ec 100644
--- a/net/rds/tcp_recv.c
+++ b/net/rds/tcp_recv.c
@@ -314,13 +314,13 @@ int rds_tcp_recv(struct rds_connection *conn)
         return ret;
 }
 
-void rds_tcp_data_ready(struct sock *sk, int bytes)
+void rds_tcp_data_ready(struct sock *sk)
 {
-        void (*ready)(struct sock *sk, int bytes);
+        void (*ready)(struct sock *sk);
         struct rds_connection *conn;
         struct rds_tcp_connection *tc;
 
-        rdsdebug("data ready sk %p bytes %d\n", sk, bytes);
+        rdsdebug("data ready sk %p\n", sk);
 
         read_lock(&sk->sk_callback_lock);
         conn = sk->sk_user_data;
@@ -337,7 +337,7 @@ void rds_tcp_data_ready(struct sock *sk, int bytes)
                 queue_delayed_work(rds_wq, &conn->c_recv_w, 0);
 out:
         read_unlock(&sk->sk_callback_lock);
-        ready(sk, bytes);
+        ready(sk);
 }
 
 int rds_tcp_recv_init(void)
diff --git a/net/rose/af_rose.c b/net/rose/af_rose.c
index c2cca2ee6aef..8451c8cdc9de 100644
--- a/net/rose/af_rose.c
+++ b/net/rose/af_rose.c
@@ -1041,7 +1041,7 @@ int rose_rx_call_request(struct sk_buff *skb, struct net_device *dev, struct ros
         rose_start_heartbeat(make);
 
         if (!sock_flag(sk, SOCK_DEAD))
-                sk->sk_data_ready(sk, skb->len);
+                sk->sk_data_ready(sk);
 
         return 1;
 }
diff --git a/net/rxrpc/ar-input.c b/net/rxrpc/ar-input.c
index 73742647c135..63b21e580de9 100644
--- a/net/rxrpc/ar-input.c
+++ b/net/rxrpc/ar-input.c
@@ -113,7 +113,7 @@ int rxrpc_queue_rcv_skb(struct rxrpc_call *call, struct sk_buff *skb,
                         spin_unlock_bh(&sk->sk_receive_queue.lock);
 
                         if (!sock_flag(sk, SOCK_DEAD))
-                                sk->sk_data_ready(sk, skb_len);
+                                sk->sk_data_ready(sk);
                 }
                 skb = NULL;
         } else {
@@ -632,14 +632,14 @@ cant_find_conn:
  * handle data received on the local endpoint
  * - may be called in interrupt context
  */
-void rxrpc_data_ready(struct sock *sk, int count)
+void rxrpc_data_ready(struct sock *sk)
 {
         struct rxrpc_skb_priv *sp;
         struct rxrpc_local *local;
         struct sk_buff *skb;
         int ret;
 
-        _enter("%p, %d", sk, count);
+        _enter("%p", sk);
 
         ASSERT(!irqs_disabled());
 
diff --git a/net/rxrpc/ar-internal.h b/net/rxrpc/ar-internal.h
index c831d44b0841..ba9fd36d3f15 100644
--- a/net/rxrpc/ar-internal.h
+++ b/net/rxrpc/ar-internal.h
@@ -518,7 +518,7 @@ void rxrpc_UDP_error_handler(struct work_struct *);
  */
 extern const char *rxrpc_pkts[];
 
-void rxrpc_data_ready(struct sock *, int);
+void rxrpc_data_ready(struct sock *);
 int rxrpc_queue_rcv_skb(struct rxrpc_call *, struct sk_buff *, bool, bool);
 void rxrpc_fast_process_packet(struct rxrpc_call *, struct sk_buff *);
 
diff --git a/net/sctp/associola.c b/net/sctp/associola.c
index 4f6d6f9d1274..39579c3e0d14 100644
--- a/net/sctp/associola.c
+++ b/net/sctp/associola.c
@@ -1395,35 +1395,44 @@ static inline bool sctp_peer_needs_update(struct sctp_association *asoc)
         return false;
 }
 
-/* Update asoc's rwnd for the approximated state in the buffer,
- * and check whether SACK needs to be sent.
- */
-void sctp_assoc_rwnd_update(struct sctp_association *asoc, bool update_peer)
+/* Increase asoc's rwnd by len and send any window update SACK if needed. */
+void sctp_assoc_rwnd_increase(struct sctp_association *asoc, unsigned int len)
 {
-        int rx_count;
         struct sctp_chunk *sack;
         struct timer_list *timer;
 
-        if (asoc->ep->rcvbuf_policy)
-                rx_count = atomic_read(&asoc->rmem_alloc);
-        else
-                rx_count = atomic_read(&asoc->base.sk->sk_rmem_alloc);
+        if (asoc->rwnd_over) {
+                if (asoc->rwnd_over >= len) {
+                        asoc->rwnd_over -= len;
+                } else {
+                        asoc->rwnd += (len - asoc->rwnd_over);
+                        asoc->rwnd_over = 0;
+                }
+        } else {
+                asoc->rwnd += len;
+        }
 
-        if ((asoc->base.sk->sk_rcvbuf - rx_count) > 0)
-                asoc->rwnd = (asoc->base.sk->sk_rcvbuf - rx_count) >> 1;
-        else
-                asoc->rwnd = 0;
+        /* If we had window pressure, start recovering it
+         * once our rwnd had reached the accumulated pressure
+         * threshold.  The idea is to recover slowly, but up
+         * to the initial advertised window.
+         */
+        if (asoc->rwnd_press && asoc->rwnd >= asoc->rwnd_press) {
+                int change = min(asoc->pathmtu, asoc->rwnd_press);
+                asoc->rwnd += change;
+                asoc->rwnd_press -= change;
+        }
 
-        pr_debug("%s: asoc:%p rwnd=%u, rx_count=%d, sk_rcvbuf=%d\n",
-                 __func__, asoc, asoc->rwnd, rx_count,
-                 asoc->base.sk->sk_rcvbuf);
+        pr_debug("%s: asoc:%p rwnd increased by %d to (%u, %u) - %u\n",
+                 __func__, asoc, len, asoc->rwnd, asoc->rwnd_over,
+                 asoc->a_rwnd);
 
         /* Send a window update SACK if the rwnd has increased by at least the
          * minimum of the association's PMTU and half of the receive buffer.
          * The algorithm used is similar to the one described in
          * Section 4.2.3.3 of RFC 1122.
          */
-        if (update_peer && sctp_peer_needs_update(asoc)) {
+        if (sctp_peer_needs_update(asoc)) {
                 asoc->a_rwnd = asoc->rwnd;
 
                 pr_debug("%s: sending window update SACK- asoc:%p rwnd:%u "
@@ -1445,6 +1454,45 @@ void sctp_assoc_rwnd_update(struct sctp_association *asoc, bool update_peer)
         }
 }
 
+/* Decrease asoc's rwnd by len. */
+void sctp_assoc_rwnd_decrease(struct sctp_association *asoc, unsigned int len)
+{
+        int rx_count;
+        int over = 0;
+
+        if (unlikely(!asoc->rwnd || asoc->rwnd_over))
+                pr_debug("%s: association:%p has asoc->rwnd:%u, "
+                         "asoc->rwnd_over:%u!\n", __func__, asoc,
+                         asoc->rwnd, asoc->rwnd_over);
+
+        if (asoc->ep->rcvbuf_policy)
+                rx_count = atomic_read(&asoc->rmem_alloc);
+        else
+                rx_count = atomic_read(&asoc->base.sk->sk_rmem_alloc);
+
+        /* If we've reached or overflowed our receive buffer, announce
+         * a 0 rwnd if rwnd would still be positive.  Store the
+         * the potential pressure overflow so that the window can be restored
+         * back to original value.
+         */
+        if (rx_count >= asoc->base.sk->sk_rcvbuf)
+                over = 1;
+
+        if (asoc->rwnd >= len) {
+                asoc->rwnd -= len;
+                if (over) {
+                        asoc->rwnd_press += asoc->rwnd;
+                        asoc->rwnd = 0;
+                }
+        } else {
+                asoc->rwnd_over = len - asoc->rwnd;
+                asoc->rwnd = 0;
+        }
+
+        pr_debug("%s: asoc:%p rwnd decreased by %d to (%u, %u, %u)\n",
+                 __func__, asoc, len, asoc->rwnd, asoc->rwnd_over,
+                 asoc->rwnd_press);
+}
 
 /* Build the bind address list for the association based on info from the
  * local endpoint and the remote peer.
diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c
index 4e1d0fcb028e..c09757fbf803 100644
--- a/net/sctp/protocol.c
+++ b/net/sctp/protocol.c
@@ -957,7 +957,7 @@ static inline int sctp_v4_xmit(struct sk_buff *skb,
 
         SCTP_INC_STATS(sock_net(&inet->sk), SCTP_MIB_OUTSCTPPACKS);
 
-        return ip_queue_xmit(skb, &transport->fl);
+        return ip_queue_xmit(&inet->sk, skb, &transport->fl);
 }
 
 static struct sctp_af sctp_af_inet;
diff --git a/net/sctp/sm_statefuns.c b/net/sctp/sm_statefuns.c
index 01e002430c85..ae9fbeba40b0 100644
--- a/net/sctp/sm_statefuns.c
+++ b/net/sctp/sm_statefuns.c
@@ -6178,7 +6178,7 @@ static int sctp_eat_data(const struct sctp_association *asoc,
          * PMTU.  In cases, such as loopback, this might be a rather
          * large spill over.
          */
-        if ((!chunk->data_accepted) && (!asoc->rwnd ||
+        if ((!chunk->data_accepted) && (!asoc->rwnd || asoc->rwnd_over ||
             (datalen > asoc->rwnd + asoc->frag_point))) {
 
                 /* If this is the next TSN, consider reneging to make
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index 5f83a6a2fa67..ff20e2dbbbc7 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -2115,6 +2115,12 @@ static int sctp_recvmsg(struct kiocb *iocb, struct sock *sk,
                 sctp_skb_pull(skb, copied);
                 skb_queue_head(&sk->sk_receive_queue, skb);
 
+                /* When only partial message is copied to the user, increase
+                 * rwnd by that amount. If all the data in the skb is read,
+                 * rwnd is updated when the event is freed.
+                 */
+                if (!sctp_ulpevent_is_notification(event))
+                        sctp_assoc_rwnd_increase(event->asoc, copied);
                 goto out;
         } else if ((event->msg_flags & MSG_NOTIFICATION) ||
                    (event->msg_flags & MSG_EOR))
@@ -6604,6 +6610,12 @@ static void sctp_wake_up_waiters(struct sock *sk,
         if (asoc->ep->sndbuf_policy)
                 return __sctp_write_space(asoc);
 
+        /* If association goes down and is just flushing its
+         * outq, then just normally notify others.
+         */
+        if (asoc->base.dead)
+                return sctp_write_space(sk);
+
         /* Accounting for the sndbuf space is per socket, so we
          * need to wake up others, try to be fair and in case of
          * other associations, let them have a go first instead
@@ -6739,7 +6751,7 @@ do_nonblock:
         goto out;
 }
 
-void sctp_data_ready(struct sock *sk, int len)
+void sctp_data_ready(struct sock *sk)
 {
         struct socket_wq *wq;
 
diff --git a/net/sctp/ulpevent.c b/net/sctp/ulpevent.c
index 8d198ae03606..85c64658bd0b 100644
--- a/net/sctp/ulpevent.c
+++ b/net/sctp/ulpevent.c
@@ -989,7 +989,7 @@ static void sctp_ulpevent_receive_data(struct sctp_ulpevent *event,
         skb = sctp_event2skb(event);
         /* Set the owner and charge rwnd for bytes received.  */
         sctp_ulpevent_set_owner(event, asoc);
-        sctp_assoc_rwnd_update(asoc, false);
+        sctp_assoc_rwnd_decrease(asoc, skb_headlen(skb));
 
         if (!skb->data_len)
                 return;
@@ -1011,7 +1011,6 @@ static void sctp_ulpevent_release_data(struct sctp_ulpevent *event)
 {
         struct sk_buff *skb, *frag;
         unsigned int    len;
-        struct sctp_association *asoc;
 
         /* Current stack structures assume that the rcv buffer is
          * per socket.   For UDP style sockets this is not true as
@@ -1036,11 +1035,8 @@ static void sctp_ulpevent_release_data(struct sctp_ulpevent *event)
         }
 
 done:
-        asoc = event->asoc;
-        sctp_association_hold(asoc);
+        sctp_assoc_rwnd_increase(event->asoc, len);
         sctp_ulpevent_release_owner(event);
-        sctp_assoc_rwnd_update(asoc, true);
-        sctp_association_put(asoc);
 }
 
 static void sctp_ulpevent_release_frag_data(struct sctp_ulpevent *event)
diff --git a/net/sctp/ulpqueue.c b/net/sctp/ulpqueue.c
index 5dc94117e9d4..7144eb6a1b95 100644
--- a/net/sctp/ulpqueue.c
+++ b/net/sctp/ulpqueue.c
@@ -259,7 +259,7 @@ int sctp_ulpq_tail_event(struct sctp_ulpq *ulpq, struct sctp_ulpevent *event)
                 sctp_ulpq_clear_pd(ulpq);
 
         if (queue == &sk->sk_receive_queue)
-                sk->sk_data_ready(sk, 0);
+                sk->sk_data_ready(sk);
         return 1;
 
 out_free:
@@ -1135,5 +1135,5 @@ void sctp_ulpq_abort_pd(struct sctp_ulpq *ulpq, gfp_t gfp)
 
         /* If there is data waiting, send it up the socket now. */
         if (sctp_ulpq_clear_pd(ulpq) || ev)
-                sk->sk_data_ready(sk, 0);
+                sk->sk_data_ready(sk);
 }
diff --git a/net/sunrpc/svcsock.c b/net/sunrpc/svcsock.c
index d06cb8752dcd..43bcb4699d69 100644
--- a/net/sunrpc/svcsock.c
+++ b/net/sunrpc/svcsock.c
@@ -60,7 +60,7 @@
 
 static struct svc_sock *svc_setup_socket(struct svc_serv *, struct socket *,
                                          int flags);
-static void             svc_udp_data_ready(struct sock *, int);
+static void             svc_udp_data_ready(struct sock *);
 static int              svc_udp_recvfrom(struct svc_rqst *);
 static int              svc_udp_sendto(struct svc_rqst *);
 static void             svc_sock_detach(struct svc_xprt *);
@@ -403,14 +403,14 @@ static void svc_sock_setbufsize(struct socket *sock, unsigned int snd,
 /*
  * INET callback when data has been received on the socket.
  */
-static void svc_udp_data_ready(struct sock *sk, int count)
+static void svc_udp_data_ready(struct sock *sk)
 {
         struct svc_sock *svsk = (struct svc_sock *)sk->sk_user_data;
         wait_queue_head_t *wq = sk_sleep(sk);
 
         if (svsk) {
-                dprintk("svc: socket %p(inet %p), count=%d, busy=%d\n",
-                        svsk, sk, count,
+                dprintk("svc: socket %p(inet %p), busy=%d\n",
+                        svsk, sk,
                         test_bit(XPT_BUSY, &svsk->sk_xprt.xpt_flags));
                 set_bit(XPT_DATA, &svsk->sk_xprt.xpt_flags);
                 svc_xprt_enqueue(&svsk->sk_xprt);
@@ -731,7 +731,7 @@ static void svc_udp_init(struct svc_sock *svsk, struct svc_serv *serv)
  * A data_ready event on a listening socket means there's a connection
  * pending. Do not use state_change as a substitute for it.
  */
-static void svc_tcp_listen_data_ready(struct sock *sk, int count_unused)
+static void svc_tcp_listen_data_ready(struct sock *sk)
 {
         struct svc_sock *svsk = (struct svc_sock *)sk->sk_user_data;
         wait_queue_head_t *wq;
@@ -783,7 +783,7 @@ static void svc_tcp_state_change(struct sock *sk)
                 wake_up_interruptible_all(wq);
 }
 
-static void svc_tcp_data_ready(struct sock *sk, int count)
+static void svc_tcp_data_ready(struct sock *sk)
 {
         struct svc_sock *svsk = (struct svc_sock *)sk->sk_user_data;
         wait_queue_head_t *wq = sk_sleep(sk);
diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c
index 6735e1d1e9bb..25a3dcf15cae 100644
--- a/net/sunrpc/xprtsock.c
+++ b/net/sunrpc/xprtsock.c
@@ -254,7 +254,7 @@ struct sock_xprt {
         /*
          * Saved socket callback addresses
          */
-        void                    (*old_data_ready)(struct sock *, int);
+        void                    (*old_data_ready)(struct sock *);
         void                    (*old_state_change)(struct sock *);
         void                    (*old_write_space)(struct sock *);
         void                    (*old_error_report)(struct sock *);
@@ -951,7 +951,7 @@ static int xs_local_copy_to_xdr(struct xdr_buf *xdr, struct sk_buff *skb)
  *
  * Currently this assumes we can read the whole reply in a single gulp.
  */
-static void xs_local_data_ready(struct sock *sk, int len)
+static void xs_local_data_ready(struct sock *sk)
 {
         struct rpc_task *task;
         struct rpc_xprt *xprt;
@@ -1014,7 +1014,7 @@ static void xs_local_data_ready(struct sock *sk, int len)
  * @len: how much data to read
  *
  */
-static void xs_udp_data_ready(struct sock *sk, int len)
+static void xs_udp_data_ready(struct sock *sk)
 {
         struct rpc_task *task;
         struct rpc_xprt *xprt;
@@ -1437,7 +1437,7 @@ static int xs_tcp_data_recv(read_descriptor_t *rd_desc, struct sk_buff *skb, uns
  * @bytes: how much data to read
  *
  */
-static void xs_tcp_data_ready(struct sock *sk, int bytes)
+static void xs_tcp_data_ready(struct sock *sk)
 {
         struct rpc_xprt *xprt;
         read_descriptor_t rd_desc;
diff --git a/net/tipc/server.c b/net/tipc/server.c
index 646a930eefbf..a538a02f869b 100644
--- a/net/tipc/server.c
+++ b/net/tipc/server.c
@@ -119,7 +119,7 @@ static struct tipc_conn *tipc_conn_lookup(struct tipc_server *s, int conid)
         return con;
 }
 
-static void sock_data_ready(struct sock *sk, int unused)
+static void sock_data_ready(struct sock *sk)
 {
         struct tipc_conn *con;
 
@@ -297,7 +297,7 @@ static int tipc_accept_from_sock(struct tipc_conn *con)
         newcon->usr_data = s->tipc_conn_new(newcon->conid);
 
         /* Wake up receive process in case of 'SYN+' message */
-        newsock->sk->sk_data_ready(newsock->sk, 0);
+        newsock->sk->sk_data_ready(newsock->sk);
         return ret;
 }
 
diff --git a/net/tipc/socket.c b/net/tipc/socket.c
index adc12e227303..3c0256962f7d 100644
--- a/net/tipc/socket.c
+++ b/net/tipc/socket.c
@@ -45,7 +45,7 @@
 #define CONN_TIMEOUT_DEFAULT    8000    /* default connect timeout = 8s */
 
 static int backlog_rcv(struct sock *sk, struct sk_buff *skb);
-static void tipc_data_ready(struct sock *sk, int len);
+static void tipc_data_ready(struct sock *sk);
 static void tipc_write_space(struct sock *sk);
 static int tipc_release(struct socket *sock);
 static int tipc_accept(struct socket *sock, struct socket *new_sock, int flags);
@@ -1248,7 +1248,7 @@ static void tipc_write_space(struct sock *sk)
  * @sk: socket
  * @len: the length of messages
  */
-static void tipc_data_ready(struct sock *sk, int len)
+static void tipc_data_ready(struct sock *sk)
 {
         struct socket_wq *wq;
 
@@ -1410,7 +1410,7 @@ static u32 filter_rcv(struct sock *sk, struct sk_buff *buf)
         __skb_queue_tail(&sk->sk_receive_queue, buf);
         skb_set_owner_r(buf, sk);
 
-        sk->sk_data_ready(sk, 0);
+        sk->sk_data_ready(sk);
         return TIPC_OK;
 }
 
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index 94404f19f9de..bb7e8ba821f4 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -1217,7 +1217,7 @@ restart:
         __skb_queue_tail(&other->sk_receive_queue, skb);
         spin_unlock(&other->sk_receive_queue.lock);
         unix_state_unlock(other);
-        other->sk_data_ready(other, 0);
+        other->sk_data_ready(other);
         sock_put(other);
         return 0;
 
@@ -1600,7 +1600,7 @@ restart:
         if (max_level > unix_sk(other)->recursion_level)
                 unix_sk(other)->recursion_level = max_level;
         unix_state_unlock(other);
-        other->sk_data_ready(other, len);
+        other->sk_data_ready(other);
         sock_put(other);
         scm_destroy(siocb->scm);
         return len;
@@ -1706,7 +1706,7 @@ static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock,
                 if (max_level > unix_sk(other)->recursion_level)
                         unix_sk(other)->recursion_level = max_level;
                 unix_state_unlock(other);
-                other->sk_data_ready(other, size);
+                other->sk_data_ready(other);
                 sent += size;
         }
 
diff --git a/net/vmw_vsock/vmci_transport_notify.c b/net/vmw_vsock/vmci_transport_notify.c
index 9a730744e7bc..9b7f207f2bee 100644
--- a/net/vmw_vsock/vmci_transport_notify.c
+++ b/net/vmw_vsock/vmci_transport_notify.c
@@ -315,7 +315,7 @@ vmci_transport_handle_wrote(struct sock *sk,
         struct vsock_sock *vsk = vsock_sk(sk);
         PKT_FIELD(vsk, sent_waiting_read) = false;
 #endif
-        sk->sk_data_ready(sk, 0);
+        sk->sk_data_ready(sk);
 }
 
 static void vmci_transport_notify_pkt_socket_init(struct sock *sk)
diff --git a/net/vmw_vsock/vmci_transport_notify_qstate.c b/net/vmw_vsock/vmci_transport_notify_qstate.c
index 622bd7aa1016..dc9c7929a2f9 100644
--- a/net/vmw_vsock/vmci_transport_notify_qstate.c
+++ b/net/vmw_vsock/vmci_transport_notify_qstate.c
@@ -92,7 +92,7 @@ vmci_transport_handle_wrote(struct sock *sk,
                             bool bottom_half,
                             struct sockaddr_vm *dst, struct sockaddr_vm *src)
 {
-        sk->sk_data_ready(sk, 0);
+        sk->sk_data_ready(sk);
 }
 
 static void vsock_block_update_write_window(struct sock *sk)
@@ -290,7 +290,7 @@ vmci_transport_notify_pkt_recv_post_dequeue(
                 /* See the comment in
                  * vmci_transport_notify_pkt_send_post_enqueue().
                  */
-                sk->sk_data_ready(sk, 0);
+                sk->sk_data_ready(sk);
         }
 
         return err;
diff --git a/net/x25/af_x25.c b/net/x25/af_x25.c
index 6177479c7de9..5ad4418ef093 100644
--- a/net/x25/af_x25.c
+++ b/net/x25/af_x25.c
@@ -1064,7 +1064,7 @@ int x25_rx_call_request(struct sk_buff *skb, struct x25_neigh *nb,
         x25_start_heartbeat(make);
 
         if (!sock_flag(sk, SOCK_DEAD))
-                sk->sk_data_ready(sk, skb->len);
+                sk->sk_data_ready(sk);
         rc = 1;
         sock_put(sk);
 out:
diff --git a/net/x25/x25_in.c b/net/x25/x25_in.c
index d1b0dc79bb6f..7ac50098a375 100644
--- a/net/x25/x25_in.c
+++ b/net/x25/x25_in.c
@@ -79,7 +79,7 @@ static int x25_queue_rx_frame(struct sock *sk, struct sk_buff *skb, int more)
         skb_set_owner_r(skbn, sk);
         skb_queue_tail(&sk->sk_receive_queue, skbn);
         if (!sock_flag(sk, SOCK_DEAD))
-                sk->sk_data_ready(sk, skbn->len);
+                sk->sk_data_ready(sk);
 
         return 0;
 }
diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
index f02f511b7107..c08fbd11ceff 100644
--- a/net/xfrm/xfrm_policy.c
+++ b/net/xfrm/xfrm_policy.c
@@ -1842,7 +1842,7 @@ purge_queue:
         xfrm_pol_put(pol);
 }
 
-static int xdst_queue_output(struct sk_buff *skb)
+static int xdst_queue_output(struct sock *sk, struct sk_buff *skb)
 {
         unsigned long sched_next;
         struct dst_entry *dst = skb_dst(skb);
diff --git a/scripts/Makefile.build b/scripts/Makefile.build
index 9f0ee22b914f..003bc263105a 100644
--- a/scripts/Makefile.build
+++ b/scripts/Makefile.build
@@ -65,12 +65,22 @@ warning-  := $(empty)
 warning-1 := -Wextra -Wunused -Wno-unused-parameter
 warning-1 += -Wmissing-declarations
 warning-1 += -Wmissing-format-attribute
-warning-1 += -Wmissing-prototypes
+warning-1 += $(call cc-option, -Wmissing-prototypes)
 warning-1 += -Wold-style-definition
 warning-1 += $(call cc-option, -Wmissing-include-dirs)
 warning-1 += $(call cc-option, -Wunused-but-set-variable)
 warning-1 += $(call cc-disable-warning, missing-field-initializers)
 
+# Clang
+warning-1 += $(call cc-disable-warning, initializer-overrides)
+warning-1 += $(call cc-disable-warning, unused-value)
+warning-1 += $(call cc-disable-warning, format)
+warning-1 += $(call cc-disable-warning, unknown-warning-option)
+warning-1 += $(call cc-disable-warning, sign-compare)
+warning-1 += $(call cc-disable-warning, format-zero-length)
+warning-1 += $(call cc-disable-warning, uninitialized)
+warning-1 += $(call cc-option, -fcatch-undefined-behavior)
+
 warning-2 := -Waggregate-return
 warning-2 += -Wcast-align
 warning-2 += -Wdisabled-optimization
diff --git a/scripts/bootgraph.pl b/scripts/bootgraph.pl
index b78fca994a15..9ca667bcaee9 100644
--- a/scripts/bootgraph.pl
+++ b/scripts/bootgraph.pl
@@ -38,6 +38,31 @@
 #
 
 use strict;
+use Getopt::Long;
+my $header = 0;
+
+sub help {
+        my $text = << "EOM";
+Usage:
+1) dmesg | perl scripts/bootgraph.pl [OPTION] > output.svg
+2) perl scripts/bootgraph.pl -h
+
+Options:
+        -header Insert kernel version and date
+EOM
+        my $std=shift;
+        if ($std == 1) {
+                print STDERR $text;
+        } else {
+                print $text;
+        }
+        exit;
+}
+
+GetOptions(
+        'h|help'        =>\&help,
+        'header'        =>\$header
+);
 
 my %start;
 my %end;
@@ -49,6 +74,11 @@ my $count = 0;
 my %pids;
 my %pidctr;
 
+my $headerstep = 20;
+my $xheader = 15;
+my $yheader = 25;
+my $cyheader = 0;
+
 while (<>) {
         my $line = $_;
         if ($line =~ /([0-9\.]+)\] calling  ([a-zA-Z0-9\_\.]+)\+/) {
@@ -112,15 +142,23 @@ if ($count == 0) {
     print STDERR <<END;
 No data found in the dmesg. Make sure that 'printk.time=1' and
 'initcall_debug' are passed on the kernel command line.
-Usage:
-      dmesg | perl scripts/bootgraph.pl > output.svg
 END
+        help(1);
     exit 1;
 }
 
 print "<?xml version=\"1.0\" standalone=\"no\"?> \n";
 print "<svg width=\"2000\" height=\"100%\" version=\"1.1\" xmlns=\"http://www.w3.org/2000/svg\">\n";
 
+
+if ($header) {
+        my $version = `uname -a`;
+        my $date = `date`;
+        print "<text transform=\"translate($xheader,$yheader)\">Kernel version: $version</text>\n";
+        $cyheader = $yheader+$headerstep;
+        print "<text transform=\"translate($xheader,$cyheader)\">Date: $date</text>\n";
+}
+
 my @styles;
 
 $styles[0] = "fill:rgb(0,0,255);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";
diff --git a/scripts/coccinelle/api/ptr_ret.cocci b/scripts/coccinelle/api/ptr_ret.cocci
index e18f8402e37c..dd58dab5d411 100644
--- a/scripts/coccinelle/api/ptr_ret.cocci
+++ b/scripts/coccinelle/api/ptr_ret.cocci
@@ -7,7 +7,7 @@
 // URL: http://coccinelle.lip6.fr/
 // Options: --no-includes --include-headers
 //
-// Keywords: ERR_PTR, PTR_ERR, PTR_RET, PTR_ERR_OR_ZERO
+// Keywords: ERR_PTR, PTR_ERR, PTR_ERR_OR_ZERO
 // Version min: 2.6.39
 //
 
@@ -62,35 +62,35 @@ position p3;
 p << r1.p1;
 @@
 
-coccilib.org.print_todo(p[0], "WARNING: PTR_RET can be used")
+coccilib.org.print_todo(p[0], "WARNING: PTR_ERR_OR_ZERO can be used")
 
 
 @script:python depends on org@
 p << r2.p2;
 @@
 
-coccilib.org.print_todo(p[0], "WARNING: PTR_RET can be used")
+coccilib.org.print_todo(p[0], "WARNING: PTR_ERR_OR_ZERO can be used")
 
 @script:python depends on org@
 p << r3.p3;
 @@
 
-coccilib.org.print_todo(p[0], "WARNING: PTR_RET can be used")
+coccilib.org.print_todo(p[0], "WARNING: PTR_ERR_OR_ZERO can be used")
 
 @script:python depends on report@
 p << r1.p1;
 @@
 
-coccilib.report.print_report(p[0], "WARNING: PTR_RET can be used")
+coccilib.report.print_report(p[0], "WARNING: PTR_ERR_OR_ZERO can be used")
 
 @script:python depends on report@
 p << r2.p2;
 @@
 
-coccilib.report.print_report(p[0], "WARNING: PTR_RET can be used")
+coccilib.report.print_report(p[0], "WARNING: PTR_ERR_OR_ZERO can be used")
 
 @script:python depends on report@
 p << r3.p3;
 @@
 
-coccilib.report.print_report(p[0], "WARNING: PTR_RET can be used")
+coccilib.report.print_report(p[0], "WARNING: PTR_ERR_OR_ZERO can be used")
diff --git a/scripts/coccinelle/misc/memcpy-assign.cocci b/scripts/coccinelle/misc/memcpy-assign.cocci
deleted file mode 100644
index afd058be497f..000000000000
--- a/scripts/coccinelle/misc/memcpy-assign.cocci
+++ /dev/null
@@ -1,103 +0,0 @@
-//
-// Replace memcpy with struct assignment.
-//
-// Confidence: High
-// Copyright: (C) 2012 Peter Senna Tschudin, INRIA/LIP6.  GPLv2.
-// URL: http://coccinelle.lip6.fr/
-// Comments:
-// Options: --no-includes --include-headers
-
-virtual patch
-virtual report
-virtual context
-virtual org
-
-@r1 depends on !patch@
-identifier struct_name;
-struct struct_name to;
-struct struct_name from;
-struct struct_name *top;
-struct struct_name *fromp;
-position p;
-@@
-memcpy@p(\(&(to)\|top\), \(&(from)\|fromp\), \(sizeof(to)\|sizeof(from)\|sizeof(struct struct_name)\|sizeof(*top)\|sizeof(*fromp)\))
-
-@script:python depends on report@
-p << r1.p;
-@@
-coccilib.report.print_report(p[0],"Replace memcpy with struct assignment")
-
-@depends on context@
-position r1.p;
-@@
-*memcpy@p(...);
-
-@script:python depends on org@
-p << r1.p;
-@@
-cocci.print_main("Replace memcpy with struct assignment",p)
-
-@depends on patch@
-identifier struct_name;
-struct struct_name to;
-struct struct_name from;
-@@
-(
--memcpy(&(to), &(from), sizeof(to));
-+to = from;
-|
--memcpy(&(to), &(from), sizeof(from));
-+to = from;
-|
--memcpy(&(to), &(from), sizeof(struct struct_name));
-+to = from;
-)
-
-@depends on patch@
-identifier struct_name;
-struct struct_name to;
-struct struct_name *from;
-@@
-(
--memcpy(&(to), from, sizeof(to));
-+to = *from;
-|
--memcpy(&(to), from, sizeof(*from));
-+to = *from;
-|
--memcpy(&(to), from, sizeof(struct struct_name));
-+to = *from;
-)
-
-@depends on patch@
-identifier struct_name;
-struct struct_name *to;
-struct struct_name from;
-@@
-(
--memcpy(to, &(from), sizeof(*to));
-+ *to = from;
-|
--memcpy(to, &(from), sizeof(from));
-+ *to = from;
-|
--memcpy(to, &(from), sizeof(struct struct_name));
-+ *to = from;
-)
-
-@depends on patch@
-identifier struct_name;
-struct struct_name *to;
-struct struct_name *from;
-@@
-(
--memcpy(to, from, sizeof(*to));
-+ *to = *from;
-|
--memcpy(to, from, sizeof(*from));
-+ *to = *from;
-|
--memcpy(to, from, sizeof(struct struct_name));
-+ *to = *from;
-)
-
diff --git a/scripts/mkcompile_h b/scripts/mkcompile_h
index f221ddf69080..cfb8440cc0b2 100755
--- a/scripts/mkcompile_h
+++ b/scripts/mkcompile_h
@@ -76,7 +76,7 @@ UTS_TRUNCATE="cut -b -$UTS_LEN"
   echo \#define LINUX_COMPILE_BY \"`echo $LINUX_COMPILE_BY | $UTS_TRUNCATE`\"
   echo \#define LINUX_COMPILE_HOST \"`echo $LINUX_COMPILE_HOST | $UTS_TRUNCATE`\"
 
-  echo \#define LINUX_COMPILER \"`$CC -v 2>&1 | tail -n 1`\"
+  echo \#define LINUX_COMPILER \"`$CC -v 2>&1 | grep ' version '`\"
 ) > .tmpcompile
 
 # Only replace the real compile.h if the new one is different,
diff --git a/scripts/objdiff b/scripts/objdiff
new file mode 100755
index 000000000000..b3e4f10bfc3e
--- /dev/null
+++ b/scripts/objdiff
@@ -0,0 +1,141 @@
+#!/bin/bash
+
+# objdiff - a small script for validating that a commit or series of commits
+# didn't change object code.
+#
+# Copyright 2014, Jason Cooper <jason@lakedaemon.net>
+#
+# Licensed under the terms of the GNU GPL version 2
+
+# usage example:
+#
+# $ git checkout COMMIT_A
+# $ <your fancy build command here>
+# $ ./scripts/objdiff record path/to/*.o
+#
+# $ git checkout COMMIT_B
+# $ <your fancy build command here>
+# $ ./scripts/objdiff record path/to/*.o
+#
+# $ ./scripts/objdiff diff COMMIT_A COMMIT_B
+# $
+
+# And to clean up (everything is in .tmp_objdiff/*)
+# $ ./scripts/objdiff clean all
+#
+# Note: 'make mrproper' will also remove .tmp_objdiff
+
+GIT_DIR="`git rev-parse --git-dir`"
+
+if [ -d "$GIT_DIR" ]; then
+        TMPD="${GIT_DIR%git}tmp_objdiff"
+
+        [ -d "$TMPD" ] || mkdir "$TMPD"
+else
+        echo "ERROR: git directory not found."
+        exit 1
+fi
+
+usage() {
+        echo "Usage: $0 <command> <args>"
+        echo "  record    <list of object files>"
+        echo "  diff      <commitA> <commitB>"
+        echo "  clean     all | <commit>"
+        exit 1
+}
+
+dorecord() {
+        [ $# -eq 0 ] && usage
+
+        FILES="$*"
+
+        CMT="`git rev-parse --short HEAD`"
+
+        OBJDUMP="${CROSS_COMPILE}objdump"
+        OBJDIFFD="$TMPD/$CMT"
+
+        [ ! -d "$OBJDIFFD" ] && mkdir -p "$OBJDIFFD"
+
+        for f in $FILES; do
+                dn="${f%/*}"
+                bn="${f##*/}"
+
+                [ ! -d "$OBJDIFFD/$dn" ] && mkdir -p "$OBJDIFFD/$dn"
+
+                # remove addresses for a more clear diff
+                # http://dummdida.tumblr.com/post/60924060451/binary-diff-between-libc-from-scientificlinux-and
+                $OBJDUMP -D "$f" | sed "s/^[[:space:]]\+[0-9a-f]\+//" \
+                        >"$OBJDIFFD/$dn/$bn"
+        done
+}
+
+dodiff() {
+        [ $# -ne 2 ] && [ $# -ne 0 ] && usage
+
+        if [ $# -eq 0 ]; then
+                SRC="`git rev-parse --short HEAD^`"
+                DST="`git rev-parse --short HEAD`"
+        else
+                SRC="`git rev-parse --short $1`"
+                DST="`git rev-parse --short $2`"
+        fi
+
+        DIFF="`which colordiff`"
+
+        if [ ${#DIFF} -eq 0 ] || [ ! -x "$DIFF" ]; then
+                DIFF="`which diff`"
+        fi
+
+        SRCD="$TMPD/$SRC"
+        DSTD="$TMPD/$DST"
+
+        if [ ! -d "$SRCD" ]; then
+                echo "ERROR: $SRCD doesn't exist"
+                exit 1
+        fi
+
+        if [ ! -d "$DSTD" ]; then
+                echo "ERROR: $DSTD doesn't exist"
+                exit 1
+        fi
+
+        $DIFF -Nurd $SRCD $DSTD
+}
+
+doclean() {
+        [ $# -eq 0 ] && usage
+        [ $# -gt 1 ] && usage
+
+        if [ "x$1" = "xall" ]; then
+                rm -rf $TMPD/*
+        else
+                CMT="`git rev-parse --short $1`"
+
+                if [ -d "$TMPD/$CMT" ]; then
+                        rm -rf $TMPD/$CMT
+                else
+                        echo "$CMT not found"
+                fi
+        fi
+}
+
+[ $# -eq 0 ] && usage
+
+case "$1" in
+        record)
+                shift
+                dorecord $*
+                ;;
+        diff)
+                shift
+                dodiff $*
+                ;;
+        clean)
+                shift
+                doclean $*
+                ;;
+        *)
+                echo "Unrecognized command '$1'"
+                exit 1
+                ;;
+esac
diff --git a/scripts/tags.sh b/scripts/tags.sh
index 58c455929091..f2c5b006a3d7 100755
--- a/scripts/tags.sh
+++ b/scripts/tags.sh
@@ -11,11 +11,10 @@ if [ "$KBUILD_VERBOSE" = "1" ]; then
         set -x
 fi
 
-# This is a duplicate of RCS_FIND_IGNORE without escaped '()'
-ignore="( -name SCCS -o -name BitKeeper -o -name .svn -o \
-          -name CVS  -o -name .pc       -o -name .hg  -o \
-          -name .git )                                   \
-          -prune -o"
+# RCS_FIND_IGNORE has escaped ()s -- remove them.
+ignore="$(echo "$RCS_FIND_IGNORE" | sed 's|\\||g' )"
+# tags and cscope files should also ignore MODVERSION *.mod.c files
+ignore="$ignore ( -name *.mod.c ) -prune -o"
 
 # Do not use full path if we do not use O=.. builds
 # Use make O=. {tags|cscope}
diff --git a/security/integrity/evm/evm_crypto.c b/security/integrity/evm/evm_crypto.c
index babd8626bf96..6b540f1822e0 100644
--- a/security/integrity/evm/evm_crypto.c
+++ b/security/integrity/evm/evm_crypto.c
@@ -139,7 +139,7 @@ static int evm_calc_hmac_or_hash(struct dentry *dentry,
         int error;
         int size;
 
-        if (!inode->i_op || !inode->i_op->getxattr)
+        if (!inode->i_op->getxattr)
                 return -EOPNOTSUPP;
         desc = init_desc(type);
         if (IS_ERR(desc))
diff --git a/security/integrity/evm/evm_main.c b/security/integrity/evm/evm_main.c
index 996092f21b64..6e0bd933b6a9 100644
--- a/security/integrity/evm/evm_main.c
+++ b/security/integrity/evm/evm_main.c
@@ -64,7 +64,7 @@ static int evm_find_protected_xattrs(struct dentry *dentry)
         int error;
         int count = 0;
 
-        if (!inode->i_op || !inode->i_op->getxattr)
+        if (!inode->i_op->getxattr)
                 return -EOPNOTSUPP;
 
         for (xattr = evm_config_xattrnames; *xattr != NULL; xattr++) {
diff --git a/security/integrity/integrity_audit.c b/security/integrity/integrity_audit.c
index aab9fa5a8231..90987d15b6fe 100644
--- a/security/integrity/integrity_audit.c
+++ b/security/integrity/integrity_audit.c
@@ -40,7 +40,7 @@ void integrity_audit_msg(int audit_msgno, struct inode *inode,
 
         ab = audit_log_start(current->audit_context, GFP_KERNEL, audit_msgno);
         audit_log_format(ab, "pid=%d uid=%u auid=%u ses=%u",
-                         current->pid,
+                         task_pid_nr(current),
                          from_kuid(&init_user_ns, current_cred()->uid),
                          from_kuid(&init_user_ns, audit_get_loginuid(current)),
                          audit_get_sessionid(current));
diff --git a/security/lsm_audit.c b/security/lsm_audit.c
index 9a62045e6282..69fdf3bc765b 100644
--- a/security/lsm_audit.c
+++ b/security/lsm_audit.c
@@ -220,7 +220,7 @@ static void dump_common_audit_data(struct audit_buffer *ab,
          */
         BUILD_BUG_ON(sizeof(a->u) > sizeof(void *)*2);
 
-        audit_log_format(ab, " pid=%d comm=", tsk->pid);
+        audit_log_format(ab, " pid=%d comm=", task_pid_nr(tsk));
         audit_log_untrustedstring(ab, tsk->comm);
 
         switch (a->type) {
@@ -278,9 +278,12 @@ static void dump_common_audit_data(struct audit_buffer *ab,
         }
         case LSM_AUDIT_DATA_TASK:
                 tsk = a->u.tsk;
-                if (tsk && tsk->pid) {
-                        audit_log_format(ab, " pid=%d comm=", tsk->pid);
-                        audit_log_untrustedstring(ab, tsk->comm);
+                if (tsk) {
+                        pid_t pid = task_pid_nr(tsk);
+                        if (pid) {
+                                audit_log_format(ab, " pid=%d comm=", pid);
+                                audit_log_untrustedstring(ab, tsk->comm);
+                        }
                 }
                 break;
         case LSM_AUDIT_DATA_NET:
diff --git a/security/tomoyo/realpath.c b/security/tomoyo/realpath.c
index 80a09c37cac8..a3386d119425 100644
--- a/security/tomoyo/realpath.c
+++ b/security/tomoyo/realpath.c
@@ -173,7 +173,7 @@ static char *tomoyo_get_local_path(struct dentry *dentry, char * const buffer,
                  * Use filesystem name if filesystem does not support rename()
                  * operation.
                  */
-                if (inode->i_op && !inode->i_op->rename)
+                if (!inode->i_op->rename)
                         goto prepend_filesystem_name;
         }
         /* Prepend device name. */
@@ -282,7 +282,7 @@ char *tomoyo_realpath_from_path(struct path *path)
                  * Get local name for filesystems without rename() operation
                  * or dentry without vfsmount.
                  */
-                if (!path->mnt || (inode->i_op && !inode->i_op->rename))
+                if (!path->mnt || !inode->i_op->rename)
                         pos = tomoyo_get_local_path(path->dentry, buf,
                                                     buf_len - 1);
                 /* Get absolute name for the rest. */
diff --git a/virt/kvm/ioapic.c b/virt/kvm/ioapic.c
index d4b601547f1f..2458a1dc2ba9 100644
--- a/virt/kvm/ioapic.c
+++ b/virt/kvm/ioapic.c
@@ -97,6 +97,14 @@ static void rtc_irq_eoi_tracking_reset(struct kvm_ioapic *ioapic)
         bitmap_zero(ioapic->rtc_status.dest_map, KVM_MAX_VCPUS);
 }
 
+static void kvm_rtc_eoi_tracking_restore_all(struct kvm_ioapic *ioapic);
+
+static void rtc_status_pending_eoi_check_valid(struct kvm_ioapic *ioapic)
+{
+        if (WARN_ON(ioapic->rtc_status.pending_eoi < 0))
+                kvm_rtc_eoi_tracking_restore_all(ioapic);
+}
+
 static void __rtc_irq_eoi_tracking_restore_one(struct kvm_vcpu *vcpu)
 {
         bool new_val, old_val;
@@ -120,9 +128,8 @@ static void __rtc_irq_eoi_tracking_restore_one(struct kvm_vcpu *vcpu)
         } else {
                 __clear_bit(vcpu->vcpu_id, ioapic->rtc_status.dest_map);
                 ioapic->rtc_status.pending_eoi--;
+                rtc_status_pending_eoi_check_valid(ioapic);
         }
-
-        WARN_ON(ioapic->rtc_status.pending_eoi < 0);
 }
 
 void kvm_rtc_eoi_tracking_restore_one(struct kvm_vcpu *vcpu)
@@ -149,10 +156,10 @@ static void kvm_rtc_eoi_tracking_restore_all(struct kvm_ioapic *ioapic)
 
 static void rtc_irq_eoi(struct kvm_ioapic *ioapic, struct kvm_vcpu *vcpu)
 {
-        if (test_and_clear_bit(vcpu->vcpu_id, ioapic->rtc_status.dest_map))
+        if (test_and_clear_bit(vcpu->vcpu_id, ioapic->rtc_status.dest_map)) {
                 --ioapic->rtc_status.pending_eoi;
-
-        WARN_ON(ioapic->rtc_status.pending_eoi < 0);
+                rtc_status_pending_eoi_check_valid(ioapic);
+        }
 }
 
 static bool rtc_irq_check_coalesced(struct kvm_ioapic *ioapic)
@@ -353,10 +360,16 @@ static int ioapic_service(struct kvm_ioapic *ioapic, int irq, bool line_status)
                 ioapic->irr &= ~(1 << irq);
 
         if (irq == RTC_GSI && line_status) {
+                /*
+                 * pending_eoi cannot ever become negative (see
+                 * rtc_status_pending_eoi_check_valid) and the caller
+                 * ensures that it is only called if it is >= zero, namely
+                 * if rtc_irq_check_coalesced returns false).
+                 */
                 BUG_ON(ioapic->rtc_status.pending_eoi != 0);
                 ret = kvm_irq_delivery_to_apic(ioapic->kvm, NULL, &irqe,
                                 ioapic->rtc_status.dest_map);
-                ioapic->rtc_status.pending_eoi = ret;
+                ioapic->rtc_status.pending_eoi = (ret < 0 ? 0 : ret);
         } else
                 ret = kvm_irq_delivery_to_apic(ioapic->kvm, NULL, &irqe, NULL);