Merge v3.9-rc5 into char-misc-next

This picks up the fixes in 3.9-rc5 that we need here.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

262 files changed, 2866 insertions, 1410 deletions

diff --git a/Documentation/networking/ipvs-sysctl.txt b/Documentation/networking/ipvs-sysctl.txt
index f2a2488f1bf3..9573d0c48c6e 100644
--- a/Documentation/networking/ipvs-sysctl.txt
+++ b/Documentation/networking/ipvs-sysctl.txt
@@ -15,6 +15,13 @@ amemthresh - INTEGER
         enabled and the variable is automatically set to 2, otherwise
         the strategy is disabled and the variable is  set  to 1.
 
+backup_only - BOOLEAN
+        0 - disabled (default)
+        not 0 - enabled
+
+        If set, disable the director function while the server is
+        in backup mode to avoid packet loops for DR/TUN methods.
+
 conntrack - BOOLEAN
         0 - disabled (default)
         not 0 - enabled
diff --git a/MAINTAINERS b/MAINTAINERS
index 8b9cbc780ef9..d8e6e8cadead 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -3243,6 +3243,12 @@ F:	Documentation/firmware_class/
 F:      drivers/base/firmware*.c
 F:      include/linux/firmware.h
 
+FLASHSYSTEM DRIVER (IBM FlashSystem 70/80 PCI SSD Flash Card)
+M:      Joshua Morris <josh.h.morris@us.ibm.com>
+M:      Philip Kelleher <pjk1939@linux.vnet.ibm.com>
+S:      Maintained
+F:      drivers/block/rsxx/
+
 FLOPPY DRIVER
 M:      Jiri Kosina <jkosina@suse.cz>
 T:      git git://git.kernel.org/pub/scm/linux/kernel/git/jikos/floppy.git
@@ -5684,7 +5690,7 @@ S:	Maintained
 F:      arch/arm/*omap*/*clock*
 
 OMAP POWER MANAGEMENT SUPPORT
-M:      Kevin Hilman <khilman@ti.com>
+M:      Kevin Hilman <khilman@deeprootsystems.com>
 L:      linux-omap@vger.kernel.org
 S:      Maintained
 F:      arch/arm/*omap*/*pm*
@@ -5778,7 +5784,7 @@ F:	arch/arm/*omap*/usb*
 
 OMAP GPIO DRIVER
 M:      Santosh Shilimkar <santosh.shilimkar@ti.com>
-M:      Kevin Hilman <khilman@ti.com>
+M:      Kevin Hilman <khilman@deeprootsystems.com>
 L:      linux-omap@vger.kernel.org
 S:      Maintained
 F:      drivers/gpio/gpio-omap.c
@@ -6210,7 +6216,7 @@ F:	include/linux/power_supply.h
 F:      drivers/power/
 
 PNP SUPPORT
-M:      Adam Belay <abelay@mit.edu>
+M:      Rafael J. Wysocki <rafael.j.wysocki@intel.com>
 M:      Bjorn Helgaas <bhelgaas@google.com>
 S:      Maintained
 F:      drivers/pnp/
@@ -6552,12 +6558,6 @@ S:	Maintained
 F:      Documentation/blockdev/ramdisk.txt
 F:      drivers/block/brd.c
 
-RAMSAM DRIVER (IBM RamSan 70/80 PCI SSD Flash Card)
-M:      Joshua Morris <josh.h.morris@us.ibm.com>
-M:      Philip Kelleher <pjk1939@linux.vnet.ibm.com>
-S:      Maintained
-F:      drivers/block/rsxx/
-
 RANDOM NUMBER DRIVER
 M:      Theodore Ts'o" <tytso@mit.edu>
 S:      Maintained
@@ -7174,7 +7174,7 @@ F:	arch/arm/mach-s3c2410/bast-irq.c
 
 TI DAVINCI MACHINE SUPPORT
 M:      Sekhar Nori <nsekhar@ti.com>
-M:      Kevin Hilman <khilman@ti.com>
+M:      Kevin Hilman <khilman@deeprootsystems.com>
 L:      davinci-linux-open-source@linux.davincidsp.com (moderated for non-subscribers)
 T:      git git://gitorious.org/linux-davinci/linux-davinci.git
 Q:      http://patchwork.kernel.org/project/linux-davinci/list/
@@ -7707,9 +7707,10 @@ F:	include/linux/swiotlb.h
 
 SYNOPSYS ARC ARCHITECTURE
 M:      Vineet Gupta <vgupta@synopsys.com>
-L:      linux-snps-arc@vger.kernel.org
 S:      Supported
 F:      arch/arc/
+F:      Documentation/devicetree/bindings/arc/
+F:      drivers/tty/serial/arc-uart.c
 
 SYSV FILESYSTEM
 M:      Christoph Hellwig <hch@infradead.org>
diff --git a/Makefile b/Makefile
index 54d2b2a0fef0..58a165b02af1 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 VERSION = 3
 PATCHLEVEL = 9
 SUBLEVEL = 0
-EXTRAVERSION = -rc4
+EXTRAVERSION = -rc5
 NAME = Unicycling Gorilla
 
 # *DOCUMENTATION*
diff --git a/arch/arc/include/asm/dma-mapping.h b/arch/arc/include/asm/dma-mapping.h
index 31f77aec0823..45b8e0cea176 100644
--- a/arch/arc/include/asm/dma-mapping.h
+++ b/arch/arc/include/asm/dma-mapping.h
@@ -126,7 +126,7 @@ dma_map_sg(struct device *dev, struct scatterlist *sg,
         int i;
 
         for_each_sg(sg, s, nents, i)
-                sg->dma_address = dma_map_page(dev, sg_page(s), s->offset,
+                s->dma_address = dma_map_page(dev, sg_page(s), s->offset,
                                                s->length, dir);
 
         return nents;
diff --git a/arch/arc/include/asm/elf.h b/arch/arc/include/asm/elf.h
index f4c8d36ebecb..a26282857683 100644
--- a/arch/arc/include/asm/elf.h
+++ b/arch/arc/include/asm/elf.h
@@ -72,7 +72,4 @@ extern int elf_check_arch(const struct elf32_hdr *);
  */
 #define ELF_PLATFORM    (NULL)
 
-#define SET_PERSONALITY(ex) \
-        set_personality(PER_LINUX | (current->personality & (~PER_MASK)))
-
 #endif
diff --git a/arch/arc/include/asm/entry.h b/arch/arc/include/asm/entry.h
index 23daa326fc9b..eb2ae53187d9 100644
--- a/arch/arc/include/asm/entry.h
+++ b/arch/arc/include/asm/entry.h
@@ -415,7 +415,7 @@
  *-------------------------------------------------------------*/
 .macro SAVE_ALL_EXCEPTION   marker
 
-        st      \marker, [sp, 8]
+        st      \marker, [sp, 8]        /* orig_r8 */
         st      r0, [sp, 4]    /* orig_r0, needed only for sys calls */
 
         /* Restore r9 used to code the early prologue */
diff --git a/arch/arc/include/asm/kgdb.h b/arch/arc/include/asm/kgdb.h
index f3c4934f0ca9..4930957ca3d3 100644
--- a/arch/arc/include/asm/kgdb.h
+++ b/arch/arc/include/asm/kgdb.h
@@ -13,7 +13,7 @@
 
 #ifdef CONFIG_KGDB
 
-#include <asm/user.h>
+#include <asm/ptrace.h>
 
 /* to ensure compatibility with Linux 2.6.35, we don't implement the get/set
  * register API yet */
@@ -53,9 +53,7 @@ enum arc700_linux_regnums {
 };
 
 #else
-static inline void kgdb_trap(struct pt_regs *regs, int param)
-{
-}
+#define kgdb_trap(regs, param)
 #endif
 
 #endif  /* __ARC_KGDB_H__ */
diff --git a/arch/arc/include/asm/ptrace.h b/arch/arc/include/asm/ptrace.h
index 8ae783d20a81..6179de7e07c2 100644
--- a/arch/arc/include/asm/ptrace.h
+++ b/arch/arc/include/asm/ptrace.h
@@ -123,7 +123,7 @@ static inline long regs_return_value(struct pt_regs *regs)
 #define orig_r8_IS_SCALL                0x0001
 #define orig_r8_IS_SCALL_RESTARTED      0x0002
 #define orig_r8_IS_BRKPT                0x0004
-#define orig_r8_IS_EXCPN                0x0004
+#define orig_r8_IS_EXCPN                0x0008
 #define orig_r8_IS_IRQ1                 0x0010
 #define orig_r8_IS_IRQ2                 0x0020
 
diff --git a/arch/arc/include/asm/syscalls.h b/arch/arc/include/asm/syscalls.h
index e53a5340ba4f..dd785befe7fd 100644
--- a/arch/arc/include/asm/syscalls.h
+++ b/arch/arc/include/asm/syscalls.h
@@ -16,8 +16,6 @@
 #include <linux/types.h>
 
 int sys_clone_wrapper(int, int, int, int, int);
-int sys_fork_wrapper(void);
-int sys_vfork_wrapper(void);
 int sys_cacheflush(uint32_t, uint32_t uint32_t);
 int sys_arc_settls(void *);
 int sys_arc_gettls(void);
diff --git a/arch/arc/include/uapi/asm/ptrace.h b/arch/arc/include/uapi/asm/ptrace.h
index 6afa4f702075..30333cec0fef 100644
--- a/arch/arc/include/uapi/asm/ptrace.h
+++ b/arch/arc/include/uapi/asm/ptrace.h
@@ -28,14 +28,14 @@
 */
 struct user_regs_struct {
 
-        struct scratch {
+        struct {
                 long pad;
                 long bta, lp_start, lp_end, lp_count;
                 long status32, ret, blink, fp, gp;
                 long r12, r11, r10, r9, r8, r7, r6, r5, r4, r3, r2, r1, r0;
                 long sp;
         } scratch;
-        struct callee {
+        struct {
                 long pad;
                 long r25, r24, r23, r22, r21, r20;
                 long r19, r18, r17, r16, r15, r14, r13;
diff --git a/arch/arc/kernel/entry.S b/arch/arc/kernel/entry.S
index ef6800ba2f03..91eeab81f52d 100644
--- a/arch/arc/kernel/entry.S
+++ b/arch/arc/kernel/entry.S
@@ -452,7 +452,7 @@ tracesys:
         ; using ERET won't work since next-PC has already committed
         lr  r12, [efa]
         GET_CURR_TASK_FIELD_PTR   TASK_THREAD, r11
-        st  r12, [r11, THREAD_FAULT_ADDR]
+        st  r12, [r11, THREAD_FAULT_ADDR]       ; thread.fault_address
 
         ; PRE Sys Call Ptrace hook
         mov r0, sp                      ; pt_regs needed
@@ -792,31 +792,6 @@ ARC_EXIT ret_from_fork
 
 ;################### Special Sys Call Wrappers ##########################
 
-; TBD: call do_fork directly from here
-ARC_ENTRY sys_fork_wrapper
-        SAVE_CALLEE_SAVED_USER
-        bl  @sys_fork
-        DISCARD_CALLEE_SAVED_USER
-
-        GET_CURR_THR_INFO_FLAGS   r10
-        btst r10, TIF_SYSCALL_TRACE
-        bnz  tracesys_exit
-
-        b ret_from_system_call
-ARC_EXIT sys_fork_wrapper
-
-ARC_ENTRY sys_vfork_wrapper
-        SAVE_CALLEE_SAVED_USER
-        bl  @sys_vfork
-        DISCARD_CALLEE_SAVED_USER
-
-        GET_CURR_THR_INFO_FLAGS   r10
-        btst r10, TIF_SYSCALL_TRACE
-        bnz  tracesys_exit
-
-        b ret_from_system_call
-ARC_EXIT sys_vfork_wrapper
-
 ARC_ENTRY sys_clone_wrapper
         SAVE_CALLEE_SAVED_USER
         bl  @sys_clone
diff --git a/arch/arc/kernel/kgdb.c b/arch/arc/kernel/kgdb.c
index 2888ba5be47e..52bdc83c1495 100644
--- a/arch/arc/kernel/kgdb.c
+++ b/arch/arc/kernel/kgdb.c
@@ -9,6 +9,7 @@
  */
 
 #include <linux/kgdb.h>
+#include <linux/sched.h>
 #include <asm/disasm.h>
 #include <asm/cacheflush.h>
 
diff --git a/arch/arc/kernel/setup.c b/arch/arc/kernel/setup.c
index dc0f968dae0a..2d95ac07df7b 100644
--- a/arch/arc/kernel/setup.c
+++ b/arch/arc/kernel/setup.c
@@ -232,10 +232,8 @@ char *arc_extn_mumbojumbo(int cpu_id, char *buf, int len)
 
         n += scnprintf(buf + n, len - n, "\n");
 
-#ifdef _ASM_GENERIC_UNISTD_H
         n += scnprintf(buf + n, len - n,
-                       "OS ABI [v2]\t: asm-generic/{unistd,stat,fcntl}\n");
-#endif
+                       "OS ABI [v3]\t: no-legacy-syscalls\n");
 
         return buf;
 }
diff --git a/arch/arc/kernel/sys.c b/arch/arc/kernel/sys.c
index f6bdd07583f3..9d6c1ca26af6 100644
--- a/arch/arc/kernel/sys.c
+++ b/arch/arc/kernel/sys.c
@@ -6,8 +6,6 @@
 #include <asm/syscalls.h>
 
 #define sys_clone       sys_clone_wrapper
-#define sys_fork        sys_fork_wrapper
-#define sys_vfork       sys_vfork_wrapper
 
 #undef __SYSCALL
 #define __SYSCALL(nr, call) [nr] = (call),
diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
index ecfcdba2d17c..9b31f4311ea2 100644
--- a/arch/arm/Kconfig.debug
+++ b/arch/arm/Kconfig.debug
@@ -495,6 +495,7 @@ config DEBUG_IMX_UART_PORT
                                                 DEBUG_IMX53_UART || \
                                                 DEBUG_IMX6Q_UART
         default 1
+        depends on ARCH_MXC
         help
           Choose UART port on which kernel low-level debug messages
           should be output.
diff --git a/arch/arm/boot/dts/tegra20.dtsi b/arch/arm/boot/dts/tegra20.dtsi
index 48d00a099ce3..3d3f64d2111a 100644
--- a/arch/arm/boot/dts/tegra20.dtsi
+++ b/arch/arm/boot/dts/tegra20.dtsi
@@ -385,7 +385,7 @@
 
         spi@7000d800 {
                 compatible = "nvidia,tegra20-slink";
-                reg = <0x7000d480 0x200>;
+                reg = <0x7000d800 0x200>;
                 interrupts = <0 83 0x04>;
                 nvidia,dma-request-selector = <&apbdma 17>;
                 #address-cells = <1>;
diff --git a/arch/arm/boot/dts/tegra30.dtsi b/arch/arm/boot/dts/tegra30.dtsi
index 9d87a3ffe998..dbf46c272562 100644
--- a/arch/arm/boot/dts/tegra30.dtsi
+++ b/arch/arm/boot/dts/tegra30.dtsi
@@ -372,7 +372,7 @@
 
         spi@7000d800 {
                 compatible = "nvidia,tegra30-slink", "nvidia,tegra20-slink";
-                reg = <0x7000d480 0x200>;
+                reg = <0x7000d800 0x200>;
                 interrupts = <0 83 0x04>;
                 nvidia,dma-request-selector = <&apbdma 17>;
                 #address-cells = <1>;
diff --git a/arch/arm/mach-mxs/mach-mxs.c b/arch/arm/mach-mxs/mach-mxs.c
index 3218f1f2c0e0..e7b781d3788f 100644
--- a/arch/arm/mach-mxs/mach-mxs.c
+++ b/arch/arm/mach-mxs/mach-mxs.c
@@ -41,8 +41,6 @@ static struct fb_videomode mx23evk_video_modes[] = {
                 .lower_margin   = 4,
                 .hsync_len      = 1,
                 .vsync_len      = 1,
-                .sync           = FB_SYNC_DATA_ENABLE_HIGH_ACT |
-                                  FB_SYNC_DOTCLK_FAILING_ACT,
         },
 };
 
@@ -59,8 +57,6 @@ static struct fb_videomode mx28evk_video_modes[] = {
                 .lower_margin   = 10,
                 .hsync_len      = 10,
                 .vsync_len      = 10,
-                .sync           = FB_SYNC_DATA_ENABLE_HIGH_ACT |
-                                  FB_SYNC_DOTCLK_FAILING_ACT,
         },
 };
 
@@ -77,7 +73,6 @@ static struct fb_videomode m28evk_video_modes[] = {
                 .lower_margin   = 45,
                 .hsync_len      = 1,
                 .vsync_len      = 1,
-                .sync           = FB_SYNC_DATA_ENABLE_HIGH_ACT,
         },
 };
 
@@ -94,9 +89,7 @@ static struct fb_videomode apx4devkit_video_modes[] = {
                 .lower_margin   = 13,
                 .hsync_len      = 48,
                 .vsync_len      = 3,
-                .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT |
-                                  FB_SYNC_DATA_ENABLE_HIGH_ACT |
-                                  FB_SYNC_DOTCLK_FAILING_ACT,
+                .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
         },
 };
 
@@ -113,9 +106,7 @@ static struct fb_videomode apf28dev_video_modes[] = {
                 .lower_margin = 0x15,
                 .hsync_len = 64,
                 .vsync_len = 4,
-                .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT |
-                                FB_SYNC_DATA_ENABLE_HIGH_ACT |
-                                FB_SYNC_DOTCLK_FAILING_ACT,
+                .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
         },
 };
 
@@ -132,7 +123,6 @@ static struct fb_videomode cfa10049_video_modes[] = {
                 .lower_margin   = 2,
                 .hsync_len      = 15,
                 .vsync_len      = 15,
-                .sync           = FB_SYNC_DATA_ENABLE_HIGH_ACT
         },
 };
 
@@ -259,6 +249,8 @@ static void __init imx23_evk_init(void)
         mxsfb_pdata.mode_count = ARRAY_SIZE(mx23evk_video_modes);
         mxsfb_pdata.default_bpp = 32;
         mxsfb_pdata.ld_intf_width = STMLCDIF_24BIT;
+        mxsfb_pdata.sync = MXSFB_SYNC_DATA_ENABLE_HIGH_ACT |
+                                MXSFB_SYNC_DOTCLK_FAILING_ACT;
 }
 
 static inline void enable_clk_enet_out(void)
@@ -278,6 +270,8 @@ static void __init imx28_evk_init(void)
         mxsfb_pdata.mode_count = ARRAY_SIZE(mx28evk_video_modes);
         mxsfb_pdata.default_bpp = 32;
         mxsfb_pdata.ld_intf_width = STMLCDIF_24BIT;
+        mxsfb_pdata.sync = MXSFB_SYNC_DATA_ENABLE_HIGH_ACT |
+                                MXSFB_SYNC_DOTCLK_FAILING_ACT;
 
         mxs_saif_clkmux_select(MXS_DIGCTL_SAIF_CLKMUX_EXTMSTR0);
 }
@@ -297,6 +291,7 @@ static void __init m28evk_init(void)
         mxsfb_pdata.mode_count = ARRAY_SIZE(m28evk_video_modes);
         mxsfb_pdata.default_bpp = 16;
         mxsfb_pdata.ld_intf_width = STMLCDIF_18BIT;
+        mxsfb_pdata.sync = MXSFB_SYNC_DATA_ENABLE_HIGH_ACT;
 }
 
 static void __init sc_sps1_init(void)
@@ -322,6 +317,8 @@ static void __init apx4devkit_init(void)
         mxsfb_pdata.mode_count = ARRAY_SIZE(apx4devkit_video_modes);
         mxsfb_pdata.default_bpp = 32;
         mxsfb_pdata.ld_intf_width = STMLCDIF_24BIT;
+        mxsfb_pdata.sync = MXSFB_SYNC_DATA_ENABLE_HIGH_ACT |
+                                MXSFB_SYNC_DOTCLK_FAILING_ACT;
 }
 
 #define ENET0_MDC__GPIO_4_0     MXS_GPIO_NR(4, 0)
@@ -407,6 +404,7 @@ static void __init cfa10049_init(void)
         mxsfb_pdata.mode_count = ARRAY_SIZE(cfa10049_video_modes);
         mxsfb_pdata.default_bpp = 32;
         mxsfb_pdata.ld_intf_width = STMLCDIF_18BIT;
+        mxsfb_pdata.sync = MXSFB_SYNC_DATA_ENABLE_HIGH_ACT;
 }
 
 static void __init cfa10037_init(void)
@@ -423,6 +421,8 @@ static void __init apf28_init(void)
         mxsfb_pdata.mode_count = ARRAY_SIZE(apf28dev_video_modes);
         mxsfb_pdata.default_bpp = 16;
         mxsfb_pdata.ld_intf_width = STMLCDIF_16BIT;
+        mxsfb_pdata.sync = MXSFB_SYNC_DATA_ENABLE_HIGH_ACT |
+                                MXSFB_SYNC_DOTCLK_FAILING_ACT;
 }
 
 static void __init mxs_machine_init(void)
diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c
index 224b44ab534e..70b8cd4021c4 100644
--- a/arch/arm64/mm/mmu.c
+++ b/arch/arm64/mm/mmu.c
@@ -261,7 +261,7 @@ static void __init create_mapping(phys_addr_t phys, unsigned long virt,
 void __iomem * __init early_io_map(phys_addr_t phys, unsigned long virt)
 {
         unsigned long size, mask;
-        bool page64k = IS_ENABLED(ARM64_64K_PAGES);
+        bool page64k = IS_ENABLED(CONFIG_ARM64_64K_PAGES);
         pgd_t *pgd;
         pud_t *pud;
         pmd_t *pmd;
diff --git a/arch/ia64/kernel/process.c b/arch/ia64/kernel/process.c
index e34f565f595a..6f7dc8b7b35c 100644
--- a/arch/ia64/kernel/process.c
+++ b/arch/ia64/kernel/process.c
@@ -291,7 +291,6 @@ cpu_idle (void)
                 }
 
                 if (!need_resched()) {
-                        void (*idle)(void);
 #ifdef CONFIG_SMP
                         min_xtp();
 #endif
@@ -299,9 +298,7 @@ cpu_idle (void)
                         if (mark_idle)
                                 (*mark_idle)(1);
 
-                        if (!idle)
-                                idle = default_idle;
-                        (*idle)();
+                        default_idle();
                         if (mark_idle)
                                 (*mark_idle)(0);
 #ifdef CONFIG_SMP
diff --git a/arch/powerpc/kernel/epapr_paravirt.c b/arch/powerpc/kernel/epapr_paravirt.c
index f3eab8594d9f..d44a571e45a7 100644
--- a/arch/powerpc/kernel/epapr_paravirt.c
+++ b/arch/powerpc/kernel/epapr_paravirt.c
@@ -23,8 +23,10 @@
 #include <asm/code-patching.h>
 #include <asm/machdep.h>
 
+#if !defined(CONFIG_64BIT) || defined(CONFIG_PPC_BOOK3E_64)
 extern void epapr_ev_idle(void);
 extern u32 epapr_ev_idle_start[];
+#endif
 
 bool epapr_paravirt_enabled;
 
@@ -47,11 +49,15 @@ static int __init epapr_paravirt_init(void)
 
         for (i = 0; i < (len / 4); i++) {
                 patch_instruction(epapr_hypercall_start + i, insts[i]);
+#if !defined(CONFIG_64BIT) || defined(CONFIG_PPC_BOOK3E_64)
                 patch_instruction(epapr_ev_idle_start + i, insts[i]);
+#endif
         }
 
+#if !defined(CONFIG_64BIT) || defined(CONFIG_PPC_BOOK3E_64)
         if (of_get_property(hyper_node, "has-idle", NULL))
                 ppc_md.power_save = epapr_ev_idle;
+#endif
 
         epapr_paravirt_enabled = true;
 
diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S
index 200afa5bcfb7..56bd92362ce1 100644
--- a/arch/powerpc/kernel/exceptions-64s.S
+++ b/arch/powerpc/kernel/exceptions-64s.S
@@ -1066,78 +1066,6 @@ unrecov_user_slb:
 #endif /* __DISABLED__ */
 
 
-/*
- * r13 points to the PACA, r9 contains the saved CR,
- * r12 contain the saved SRR1, SRR0 is still ready for return
- * r3 has the faulting address
- * r9 - r13 are saved in paca->exslb.
- * r3 is saved in paca->slb_r3
- * We assume we aren't going to take any exceptions during this procedure.
- */
-_GLOBAL(slb_miss_realmode)
-        mflr    r10
-#ifdef CONFIG_RELOCATABLE
-        mtctr   r11
-#endif
-
-        stw     r9,PACA_EXSLB+EX_CCR(r13)       /* save CR in exc. frame */
-        std     r10,PACA_EXSLB+EX_LR(r13)       /* save LR */
-
-        bl      .slb_allocate_realmode
-
-        /* All done -- return from exception. */
-
-        ld      r10,PACA_EXSLB+EX_LR(r13)
-        ld      r3,PACA_EXSLB+EX_R3(r13)
-        lwz     r9,PACA_EXSLB+EX_CCR(r13)       /* get saved CR */
-
-        mtlr    r10
-
-        andi.   r10,r12,MSR_RI  /* check for unrecoverable exception */
-        beq-    2f
-
-.machine        push
-.machine        "power4"
-        mtcrf   0x80,r9
-        mtcrf   0x01,r9         /* slb_allocate uses cr0 and cr7 */
-.machine        pop
-
-        RESTORE_PPR_PACA(PACA_EXSLB, r9)
-        ld      r9,PACA_EXSLB+EX_R9(r13)
-        ld      r10,PACA_EXSLB+EX_R10(r13)
-        ld      r11,PACA_EXSLB+EX_R11(r13)
-        ld      r12,PACA_EXSLB+EX_R12(r13)
-        ld      r13,PACA_EXSLB+EX_R13(r13)
-        rfid
-        b       .       /* prevent speculative execution */
-
-2:      mfspr   r11,SPRN_SRR0
-        ld      r10,PACAKBASE(r13)
-        LOAD_HANDLER(r10,unrecov_slb)
-        mtspr   SPRN_SRR0,r10
-        ld      r10,PACAKMSR(r13)
-        mtspr   SPRN_SRR1,r10
-        rfid
-        b       .
-
-unrecov_slb:
-        EXCEPTION_PROLOG_COMMON(0x4100, PACA_EXSLB)
-        DISABLE_INTS
-        bl      .save_nvgprs
-1:      addi    r3,r1,STACK_FRAME_OVERHEAD
-        bl      .unrecoverable_exception
-        b       1b
-
-
-#ifdef CONFIG_PPC_970_NAP
-power4_fixup_nap:
-        andc    r9,r9,r10
-        std     r9,TI_LOCAL_FLAGS(r11)
-        ld      r10,_LINK(r1)           /* make idle task do the */
-        std     r10,_NIP(r1)            /* equivalent of a blr */
-        blr
-#endif
-
         .align  7
         .globl alignment_common
 alignment_common:
@@ -1336,6 +1264,78 @@ _GLOBAL(opal_mc_secondary_handler)
 
 
 /*
+ * r13 points to the PACA, r9 contains the saved CR,
+ * r12 contain the saved SRR1, SRR0 is still ready for return
+ * r3 has the faulting address
+ * r9 - r13 are saved in paca->exslb.
+ * r3 is saved in paca->slb_r3
+ * We assume we aren't going to take any exceptions during this procedure.
+ */
+_GLOBAL(slb_miss_realmode)
+        mflr    r10
+#ifdef CONFIG_RELOCATABLE
+        mtctr   r11
+#endif
+
+        stw     r9,PACA_EXSLB+EX_CCR(r13)       /* save CR in exc. frame */
+        std     r10,PACA_EXSLB+EX_LR(r13)       /* save LR */
+
+        bl      .slb_allocate_realmode
+
+        /* All done -- return from exception. */
+
+        ld      r10,PACA_EXSLB+EX_LR(r13)
+        ld      r3,PACA_EXSLB+EX_R3(r13)
+        lwz     r9,PACA_EXSLB+EX_CCR(r13)       /* get saved CR */
+
+        mtlr    r10
+
+        andi.   r10,r12,MSR_RI  /* check for unrecoverable exception */
+        beq-    2f
+
+.machine        push
+.machine        "power4"
+        mtcrf   0x80,r9
+        mtcrf   0x01,r9         /* slb_allocate uses cr0 and cr7 */
+.machine        pop
+
+        RESTORE_PPR_PACA(PACA_EXSLB, r9)
+        ld      r9,PACA_EXSLB+EX_R9(r13)
+        ld      r10,PACA_EXSLB+EX_R10(r13)
+        ld      r11,PACA_EXSLB+EX_R11(r13)
+        ld      r12,PACA_EXSLB+EX_R12(r13)
+        ld      r13,PACA_EXSLB+EX_R13(r13)
+        rfid
+        b       .       /* prevent speculative execution */
+
+2:      mfspr   r11,SPRN_SRR0
+        ld      r10,PACAKBASE(r13)
+        LOAD_HANDLER(r10,unrecov_slb)
+        mtspr   SPRN_SRR0,r10
+        ld      r10,PACAKMSR(r13)
+        mtspr   SPRN_SRR1,r10
+        rfid
+        b       .
+
+unrecov_slb:
+        EXCEPTION_PROLOG_COMMON(0x4100, PACA_EXSLB)
+        DISABLE_INTS
+        bl      .save_nvgprs
+1:      addi    r3,r1,STACK_FRAME_OVERHEAD
+        bl      .unrecoverable_exception
+        b       1b
+
+
+#ifdef CONFIG_PPC_970_NAP
+power4_fixup_nap:
+        andc    r9,r9,r10
+        std     r9,TI_LOCAL_FLAGS(r11)
+        ld      r10,_LINK(r1)           /* make idle task do the */
+        std     r10,_NIP(r1)            /* equivalent of a blr */
+        blr
+#endif
+
+/*
  * Hash table stuff
  */
         .align  7
diff --git a/arch/x86/include/asm/xen/hypercall.h b/arch/x86/include/asm/xen/hypercall.h
index c20d1ce62dc6..e709884d0ef9 100644
--- a/arch/x86/include/asm/xen/hypercall.h
+++ b/arch/x86/include/asm/xen/hypercall.h
@@ -382,14 +382,14 @@ HYPERVISOR_console_io(int cmd, int count, char *str)
         return _hypercall3(int, console_io, cmd, count, str);
 }
 
-extern int __must_check HYPERVISOR_physdev_op_compat(int, void *);
+extern int __must_check xen_physdev_op_compat(int, void *);
 
 static inline int
 HYPERVISOR_physdev_op(int cmd, void *arg)
 {
         int rc = _hypercall2(int, physdev_op, cmd, arg);
         if (unlikely(rc == -ENOSYS))
-                rc = HYPERVISOR_physdev_op_compat(cmd, arg);
+                rc = xen_physdev_op_compat(cmd, arg);
         return rc;
 }
 
diff --git a/arch/x86/include/uapi/asm/msr-index.h b/arch/x86/include/uapi/asm/msr-index.h
index 892ce40a7470..7a060f4b411f 100644
--- a/arch/x86/include/uapi/asm/msr-index.h
+++ b/arch/x86/include/uapi/asm/msr-index.h
@@ -44,6 +44,7 @@
 #define SNB_C1_AUTO_UNDEMOTE            (1UL << 27)
 #define SNB_C3_AUTO_UNDEMOTE            (1UL << 28)
 
+#define MSR_PLATFORM_INFO               0x000000ce
 #define MSR_MTRRcap                     0x000000fe
 #define MSR_IA32_BBL_CR_CTL             0x00000119
 #define MSR_IA32_BBL_CR_CTL3            0x0000011e
diff --git a/arch/x86/kernel/microcode_intel_early.c b/arch/x86/kernel/microcode_intel_early.c
index 7890bc838952..d893e8ed8ac9 100644
--- a/arch/x86/kernel/microcode_intel_early.c
+++ b/arch/x86/kernel/microcode_intel_early.c
@@ -90,13 +90,13 @@ microcode_phys(struct microcode_intel **mc_saved_tmp,
         struct microcode_intel ***mc_saved;
 
         mc_saved = (struct microcode_intel ***)
-                   __pa_symbol(&mc_saved_data->mc_saved);
+                   __pa_nodebug(&mc_saved_data->mc_saved);
         for (i = 0; i < mc_saved_data->mc_saved_count; i++) {
                 struct microcode_intel *p;
 
                 p = *(struct microcode_intel **)
-                        __pa(mc_saved_data->mc_saved + i);
-                mc_saved_tmp[i] = (struct microcode_intel *)__pa(p);
+                        __pa_nodebug(mc_saved_data->mc_saved + i);
+                mc_saved_tmp[i] = (struct microcode_intel *)__pa_nodebug(p);
         }
 }
 #endif
@@ -562,7 +562,7 @@ scan_microcode(unsigned long start, unsigned long end,
         struct cpio_data cd;
         long offset = 0;
 #ifdef CONFIG_X86_32
-        char *p = (char *)__pa_symbol(ucode_name);
+        char *p = (char *)__pa_nodebug(ucode_name);
 #else
         char *p = ucode_name;
 #endif
@@ -630,8 +630,8 @@ static void __cpuinit print_ucode(struct ucode_cpu_info *uci)
         if (mc_intel == NULL)
                 return;
 
-        delay_ucode_info_p = (int *)__pa_symbol(&delay_ucode_info);
-        current_mc_date_p = (int *)__pa_symbol(&current_mc_date);
+        delay_ucode_info_p = (int *)__pa_nodebug(&delay_ucode_info);
+        current_mc_date_p = (int *)__pa_nodebug(&current_mc_date);
 
         *delay_ucode_info_p = 1;
         *current_mc_date_p = mc_intel->hdr.date;
@@ -659,8 +659,8 @@ static inline void __cpuinit print_ucode(struct ucode_cpu_info *uci)
 }
 #endif
 
-static int apply_microcode_early(struct mc_saved_data *mc_saved_data,
-                                 struct ucode_cpu_info *uci)
+static int __cpuinit apply_microcode_early(struct mc_saved_data *mc_saved_data,
+                                           struct ucode_cpu_info *uci)
 {
         struct microcode_intel *mc_intel;
         unsigned int val[2];
@@ -741,15 +741,15 @@ load_ucode_intel_bsp(void)
 #ifdef CONFIG_X86_32
         struct boot_params *boot_params_p;
 
-        boot_params_p = (struct boot_params *)__pa_symbol(&boot_params);
+        boot_params_p = (struct boot_params *)__pa_nodebug(&boot_params);
         ramdisk_image = boot_params_p->hdr.ramdisk_image;
         ramdisk_size  = boot_params_p->hdr.ramdisk_size;
         initrd_start_early = ramdisk_image;
         initrd_end_early = initrd_start_early + ramdisk_size;
 
         _load_ucode_intel_bsp(
-                (struct mc_saved_data *)__pa_symbol(&mc_saved_data),
-                (unsigned long *)__pa_symbol(&mc_saved_in_initrd),
+                (struct mc_saved_data *)__pa_nodebug(&mc_saved_data),
+                (unsigned long *)__pa_nodebug(&mc_saved_in_initrd),
                 initrd_start_early, initrd_end_early, &uci);
 #else
         ramdisk_image = boot_params.hdr.ramdisk_image;
@@ -772,10 +772,10 @@ void __cpuinit load_ucode_intel_ap(void)
         unsigned long *initrd_start_p;
 
         mc_saved_in_initrd_p =
-                (unsigned long *)__pa_symbol(mc_saved_in_initrd);
-        mc_saved_data_p = (struct mc_saved_data *)__pa_symbol(&mc_saved_data);
-        initrd_start_p = (unsigned long *)__pa_symbol(&initrd_start);
-        initrd_start_addr = (unsigned long)__pa_symbol(*initrd_start_p);
+                (unsigned long *)__pa_nodebug(mc_saved_in_initrd);
+        mc_saved_data_p = (struct mc_saved_data *)__pa_nodebug(&mc_saved_data);
+        initrd_start_p = (unsigned long *)__pa_nodebug(&initrd_start);
+        initrd_start_addr = (unsigned long)__pa_nodebug(*initrd_start_p);
 #else
         mc_saved_data_p = &mc_saved_data;
         mc_saved_in_initrd_p = mc_saved_in_initrd;
diff --git a/arch/x86/lib/usercopy_64.c b/arch/x86/lib/usercopy_64.c
index 05928aae911e..906fea315791 100644
--- a/arch/x86/lib/usercopy_64.c
+++ b/arch/x86/lib/usercopy_64.c
@@ -74,10 +74,10 @@ copy_user_handle_tail(char *to, char *from, unsigned len, unsigned zerorest)
         char c;
         unsigned zero_len;
 
-        for (; len; --len) {
+        for (; len; --len, to++) {
                 if (__get_user_nocheck(c, from++, sizeof(char)))
                         break;
-                if (__put_user_nocheck(c, to++, sizeof(char)))
+                if (__put_user_nocheck(c, to, sizeof(char)))
                         break;
         }
 
diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c
index e8e34938c57d..6afbb2ca9a0a 100644
--- a/arch/x86/xen/mmu.c
+++ b/arch/x86/xen/mmu.c
@@ -1467,8 +1467,6 @@ static void __init xen_write_cr3_init(unsigned long cr3)
         __xen_write_cr3(true, cr3);
 
         xen_mc_issue(PARAVIRT_LAZY_CPU);  /* interrupts restored */
-
-        pv_mmu_ops.write_cr3 = &xen_write_cr3;
 }
 #endif
 
@@ -2122,6 +2120,7 @@ static void __init xen_post_allocator_init(void)
 #endif
 
 #ifdef CONFIG_X86_64
+        pv_mmu_ops.write_cr3 = &xen_write_cr3;
         SetPagePinned(virt_to_page(level3_user_vsyscall));
 #endif
         xen_mark_init_mm_pinned();
diff --git a/block/blk-flush.c b/block/blk-flush.c
index db8f1b507857..cc2b827a853c 100644
--- a/block/blk-flush.c
+++ b/block/blk-flush.c
@@ -444,7 +444,7 @@ int blkdev_issue_flush(struct block_device *bdev, gfp_t gfp_mask,
          * copied from blk_rq_pos(rq).
          */
         if (error_sector)
-               *error_sector = bio->bi_sector;
+                *error_sector = bio->bi_sector;
 
         if (!bio_flagged(bio, BIO_UPTODATE))
                 ret = -EIO;
diff --git a/block/partition-generic.c b/block/partition-generic.c
index 789cdea05893..ae95ee6a58aa 100644
--- a/block/partition-generic.c
+++ b/block/partition-generic.c
@@ -257,6 +257,7 @@ void delete_partition(struct gendisk *disk, int partno)
 
         hd_struct_put(part);
 }
+EXPORT_SYMBOL(delete_partition);
 
 static ssize_t whole_disk_show(struct device *dev,
                                struct device_attribute *attr, char *buf)
diff --git a/drivers/acpi/apei/cper.c b/drivers/acpi/apei/cper.c
index 1e5d8a40101e..fefc2ca7cc3e 100644
--- a/drivers/acpi/apei/cper.c
+++ b/drivers/acpi/apei/cper.c
@@ -405,7 +405,7 @@ int apei_estatus_check(const struct acpi_hest_generic_status *estatus)
                 return rc;
         data_len = estatus->data_length;
         gdata = (struct acpi_hest_generic_data *)(estatus + 1);
-        while (data_len > sizeof(*gdata)) {
+        while (data_len >= sizeof(*gdata)) {
                 gedata_len = gdata->error_data_length;
                 if (gedata_len > data_len - sizeof(*gdata))
                         return -EINVAL;
diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index 0ac546d5e53f..5ff173066127 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -646,6 +646,7 @@ static void handle_root_bridge_insertion(acpi_handle handle)
 
 static void handle_root_bridge_removal(struct acpi_device *device)
 {
+        acpi_status status;
         struct acpi_eject_event *ej_event;
 
         ej_event = kmalloc(sizeof(*ej_event), GFP_KERNEL);
@@ -661,7 +662,9 @@ static void handle_root_bridge_removal(struct acpi_device *device)
         ej_event->device = device;
         ej_event->event = ACPI_NOTIFY_EJECT_REQUEST;
 
-        acpi_bus_hot_remove_device(ej_event);
+        status = acpi_os_hotplug_execute(acpi_bus_hot_remove_device, ej_event);
+        if (ACPI_FAILURE(status))
+                kfree(ej_event);
 }
 
 static void _handle_hotplug_event_root(struct work_struct *work)
@@ -676,8 +679,9 @@ static void _handle_hotplug_event_root(struct work_struct *work)
         handle = hp_work->handle;
         type = hp_work->type;
 
-        root = acpi_pci_find_root(handle);
+        acpi_scan_lock_acquire();
 
+        root = acpi_pci_find_root(handle);
         acpi_get_name(handle, ACPI_FULL_PATHNAME, &buffer);
 
         switch (type) {
@@ -711,6 +715,7 @@ static void _handle_hotplug_event_root(struct work_struct *work)
                 break;
         }
 
+        acpi_scan_lock_release();
         kfree(hp_work); /* allocated in handle_hotplug_event_bridge */
         kfree(buffer.pointer);
 }
diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
index 24213033fbae..9c1a435d10e6 100644
--- a/drivers/acpi/sleep.c
+++ b/drivers/acpi/sleep.c
@@ -193,6 +193,14 @@ static struct dmi_system_id __initdata acpisleep_dmi_table[] = {
         },
         {
         .callback = init_nvs_nosave,
+        .ident = "Sony Vaio VGN-FW21M",
+        .matches = {
+                DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
+                DMI_MATCH(DMI_PRODUCT_NAME, "VGN-FW21M"),
+                },
+        },
+        {
+        .callback = init_nvs_nosave,
         .ident = "Sony Vaio VPCEB17FX",
         .matches = {
                 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
diff --git a/drivers/block/Kconfig b/drivers/block/Kconfig
index 5dc0daed8fac..b81ddfea1da0 100644
--- a/drivers/block/Kconfig
+++ b/drivers/block/Kconfig
@@ -532,11 +532,11 @@ config BLK_DEV_RBD
           If unsure, say N.
 
 config BLK_DEV_RSXX
-        tristate "RamSam PCIe Flash SSD Device Driver"
+        tristate "IBM FlashSystem 70/80 PCIe SSD Device Driver"
         depends on PCI
         help
           Device driver for IBM's high speed PCIe SSD
-          storage devices: RamSan-70 and RamSan-80.
+          storage devices: FlashSystem-70 and FlashSystem-80.
 
           To compile this driver as a module, choose M here: the
           module will be called rsxx.
diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c
index ade58bc8f3c4..1c1b8e544aa2 100644
--- a/drivers/block/cciss.c
+++ b/drivers/block/cciss.c
@@ -4206,7 +4206,7 @@ static int cciss_find_cfgtables(ctlr_info_t *h)
         if (rc)
                 return rc;
         h->cfgtable = remap_pci_mem(pci_resource_start(h->pdev,
-                cfg_base_addr_index) + cfg_offset, sizeof(h->cfgtable));
+                cfg_base_addr_index) + cfg_offset, sizeof(*h->cfgtable));
         if (!h->cfgtable)
                 return -ENOMEM;
         rc = write_driver_ver_to_cfgtable(h->cfgtable);
diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index 747bb2af69dc..fe5f6403417f 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -1044,12 +1044,29 @@ static int loop_clr_fd(struct loop_device *lo)
         lo->lo_state = Lo_unbound;
         /* This is safe: open() is still holding a reference. */
         module_put(THIS_MODULE);
-        if (lo->lo_flags & LO_FLAGS_PARTSCAN && bdev)
-                ioctl_by_bdev(bdev, BLKRRPART, 0);
         lo->lo_flags = 0;
         if (!part_shift)
                 lo->lo_disk->flags |= GENHD_FL_NO_PART_SCAN;
         mutex_unlock(&lo->lo_ctl_mutex);
+
+        /*
+         * Remove all partitions, since BLKRRPART won't remove user
+         * added partitions when max_part=0
+         */
+        if (bdev) {
+                struct disk_part_iter piter;
+                struct hd_struct *part;
+
+                mutex_lock_nested(&bdev->bd_mutex, 1);
+                invalidate_partition(bdev->bd_disk, 0);
+                disk_part_iter_init(&piter, bdev->bd_disk,
+                                        DISK_PITER_INCL_EMPTY);
+                while ((part = disk_part_iter_next(&piter)))
+                        delete_partition(bdev->bd_disk, part->partno);
+                disk_part_iter_exit(&piter);
+                mutex_unlock(&bdev->bd_mutex);
+        }
+
         /*
          * Need not hold lo_ctl_mutex to fput backing file.
          * Calling fput holding lo_ctl_mutex triggers a circular
@@ -1623,6 +1640,7 @@ static int loop_add(struct loop_device **l, int i)
                 goto out_free_dev;
         i = err;
 
+        err = -ENOMEM;
         lo->lo_queue = blk_alloc_queue(GFP_KERNEL);
         if (!lo->lo_queue)
                 goto out_free_dev;
diff --git a/drivers/block/mg_disk.c b/drivers/block/mg_disk.c
index 1788f491e0fb..076ae7f1b781 100644
--- a/drivers/block/mg_disk.c
+++ b/drivers/block/mg_disk.c
@@ -890,8 +890,10 @@ static int mg_probe(struct platform_device *plat_dev)
         gpio_direction_output(host->rst, 1);
 
         /* reset out pin */
-        if (!(prv_data->dev_attr & MG_DEV_MASK))
+        if (!(prv_data->dev_attr & MG_DEV_MASK)) {
+                err = -EINVAL;
                 goto probe_err_3a;
+        }
 
         if (prv_data->dev_attr != MG_BOOT_DEV) {
                 rsc = platform_get_resource_byname(plat_dev, IORESOURCE_IO,
diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c
index 11cc9522cdd4..92250af84e7d 100644
--- a/drivers/block/mtip32xx/mtip32xx.c
+++ b/drivers/block/mtip32xx/mtip32xx.c
@@ -4224,6 +4224,7 @@ static int mtip_pci_probe(struct pci_dev *pdev,
         dd->isr_workq = create_workqueue(dd->workq_name);
         if (!dd->isr_workq) {
                 dev_warn(&pdev->dev, "Can't create wq %d\n", dd->instance);
+                rv = -ENOMEM;
                 goto block_initialize_err;
         }
 
@@ -4282,7 +4283,8 @@ static int mtip_pci_probe(struct pci_dev *pdev,
         INIT_WORK(&dd->work[7].work, mtip_workq_sdbf7);
 
         pci_set_master(pdev);
-        if (pci_enable_msi(pdev)) {
+        rv = pci_enable_msi(pdev);
+        if (rv) {
                 dev_warn(&pdev->dev,
                         "Unable to enable MSI interrupt.\n");
                 goto block_initialize_err;
diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
index 6c81a4c040b9..f556f8a8b3f9 100644
--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -1264,6 +1264,32 @@ static bool obj_request_done_test(struct rbd_obj_request *obj_request)
         return atomic_read(&obj_request->done) != 0;
 }
 
+static void
+rbd_img_obj_request_read_callback(struct rbd_obj_request *obj_request)
+{
+        dout("%s: obj %p img %p result %d %llu/%llu\n", __func__,
+                obj_request, obj_request->img_request, obj_request->result,
+                obj_request->xferred, obj_request->length);
+        /*
+         * ENOENT means a hole in the image.  We zero-fill the
+         * entire length of the request.  A short read also implies
+         * zero-fill to the end of the request.  Either way we
+         * update the xferred count to indicate the whole request
+         * was satisfied.
+         */
+        BUG_ON(obj_request->type != OBJ_REQUEST_BIO);
+        if (obj_request->result == -ENOENT) {
+                zero_bio_chain(obj_request->bio_list, 0);
+                obj_request->result = 0;
+                obj_request->xferred = obj_request->length;
+        } else if (obj_request->xferred < obj_request->length &&
+                        !obj_request->result) {
+                zero_bio_chain(obj_request->bio_list, obj_request->xferred);
+                obj_request->xferred = obj_request->length;
+        }
+        obj_request_done_set(obj_request);
+}
+
 static void rbd_obj_request_complete(struct rbd_obj_request *obj_request)
 {
         dout("%s: obj %p cb %p\n", __func__, obj_request,
@@ -1284,23 +1310,10 @@ static void rbd_osd_read_callback(struct rbd_obj_request *obj_request)
 {
         dout("%s: obj %p result %d %llu/%llu\n", __func__, obj_request,
                 obj_request->result, obj_request->xferred, obj_request->length);
-        /*
-         * ENOENT means a hole in the object.  We zero-fill the
-         * entire length of the request.  A short read also implies
-         * zero-fill to the end of the request.  Either way we
-         * update the xferred count to indicate the whole request
-         * was satisfied.
-         */
-        if (obj_request->result == -ENOENT) {
-                zero_bio_chain(obj_request->bio_list, 0);
-                obj_request->result = 0;
-                obj_request->xferred = obj_request->length;
-        } else if (obj_request->xferred < obj_request->length &&
-                        !obj_request->result) {
-                zero_bio_chain(obj_request->bio_list, obj_request->xferred);
-                obj_request->xferred = obj_request->length;
-        }
-        obj_request_done_set(obj_request);
+        if (obj_request->img_request)
+                rbd_img_obj_request_read_callback(obj_request);
+        else
+                obj_request_done_set(obj_request);
 }
 
 static void rbd_osd_write_callback(struct rbd_obj_request *obj_request)
diff --git a/drivers/block/rsxx/Makefile b/drivers/block/rsxx/Makefile
index f35cd0b71f7b..b1c53c0aa450 100644
--- a/drivers/block/rsxx/Makefile
+++ b/drivers/block/rsxx/Makefile
@@ -1,2 +1,2 @@
 obj-$(CONFIG_BLK_DEV_RSXX) += rsxx.o
-rsxx-y := config.o core.o cregs.o dev.o dma.o
+rsxx-objs := config.o core.o cregs.o dev.o dma.o
diff --git a/drivers/block/rsxx/config.c b/drivers/block/rsxx/config.c
index a295e7e9ee41..10cd530d3e10 100644
--- a/drivers/block/rsxx/config.c
+++ b/drivers/block/rsxx/config.c
@@ -29,15 +29,13 @@
 #include "rsxx_priv.h"
 #include "rsxx_cfg.h"
 
-static void initialize_config(void *config)
+static void initialize_config(struct rsxx_card_cfg *cfg)
 {
-        struct rsxx_card_cfg *cfg = config;
-
         cfg->hdr.version = RSXX_CFG_VERSION;
 
         cfg->data.block_size        = RSXX_HW_BLK_SIZE;
         cfg->data.stripe_size       = RSXX_HW_BLK_SIZE;
-        cfg->data.vendor_id         = RSXX_VENDOR_ID_TMS_IBM;
+        cfg->data.vendor_id         = RSXX_VENDOR_ID_IBM;
         cfg->data.cache_order       = (-1);
         cfg->data.intr_coal.mode    = RSXX_INTR_COAL_DISABLED;
         cfg->data.intr_coal.count   = 0;
@@ -181,7 +179,7 @@ int rsxx_load_config(struct rsxx_cardinfo *card)
         } else {
                 dev_info(CARD_TO_DEV(card),
                         "Initializing card configuration.\n");
-                initialize_config(card);
+                initialize_config(&card->config);
                 st = rsxx_save_config(card);
                 if (st)
                         return st;
diff --git a/drivers/block/rsxx/core.c b/drivers/block/rsxx/core.c
index e5162487686a..5af21f2db29c 100644
--- a/drivers/block/rsxx/core.c
+++ b/drivers/block/rsxx/core.c
@@ -30,6 +30,7 @@
 #include <linux/reboot.h>
 #include <linux/slab.h>
 #include <linux/bitops.h>
+#include <linux/delay.h>
 
 #include <linux/genhd.h>
 #include <linux/idr.h>
@@ -39,8 +40,8 @@
 
 #define NO_LEGACY 0
 
-MODULE_DESCRIPTION("IBM RamSan PCIe Flash SSD Device Driver");
-MODULE_AUTHOR("IBM <support@ramsan.com>");
+MODULE_DESCRIPTION("IBM FlashSystem 70/80 PCIe SSD Device Driver");
+MODULE_AUTHOR("Joshua Morris/Philip Kelleher, IBM");
 MODULE_LICENSE("GPL");
 MODULE_VERSION(DRIVER_VERSION);
 
@@ -52,6 +53,13 @@ static DEFINE_IDA(rsxx_disk_ida);
 static DEFINE_SPINLOCK(rsxx_ida_lock);
 
 /*----------------- Interrupt Control & Handling -------------------*/
+
+static void rsxx_mask_interrupts(struct rsxx_cardinfo *card)
+{
+        card->isr_mask = 0;
+        card->ier_mask = 0;
+}
+
 static void __enable_intr(unsigned int *mask, unsigned int intr)
 {
         *mask |= intr;
@@ -71,7 +79,8 @@ static void __disable_intr(unsigned int *mask, unsigned int intr)
  */
 void rsxx_enable_ier(struct rsxx_cardinfo *card, unsigned int intr)
 {
-        if (unlikely(card->halt))
+        if (unlikely(card->halt) ||
+            unlikely(card->eeh_state))
                 return;
 
         __enable_intr(&card->ier_mask, intr);
@@ -80,6 +89,9 @@ void rsxx_enable_ier(struct rsxx_cardinfo *card, unsigned int intr)
 
 void rsxx_disable_ier(struct rsxx_cardinfo *card, unsigned int intr)
 {
+        if (unlikely(card->eeh_state))
+                return;
+
         __disable_intr(&card->ier_mask, intr);
         iowrite32(card->ier_mask, card->regmap + IER);
 }
@@ -87,7 +99,8 @@ void rsxx_disable_ier(struct rsxx_cardinfo *card, unsigned int intr)
 void rsxx_enable_ier_and_isr(struct rsxx_cardinfo *card,
                                  unsigned int intr)
 {
-        if (unlikely(card->halt))
+        if (unlikely(card->halt) ||
+            unlikely(card->eeh_state))
                 return;
 
         __enable_intr(&card->isr_mask, intr);
@@ -97,6 +110,9 @@ void rsxx_enable_ier_and_isr(struct rsxx_cardinfo *card,
 void rsxx_disable_ier_and_isr(struct rsxx_cardinfo *card,
                                   unsigned int intr)
 {
+        if (unlikely(card->eeh_state))
+                return;
+
         __disable_intr(&card->isr_mask, intr);
         __disable_intr(&card->ier_mask, intr);
         iowrite32(card->ier_mask, card->regmap + IER);
@@ -115,6 +131,9 @@ static irqreturn_t rsxx_isr(int irq, void *pdata)
         do {
                 reread_isr = 0;
 
+                if (unlikely(card->eeh_state))
+                        break;
+
                 isr = ioread32(card->regmap + ISR);
                 if (isr == 0xffffffff) {
                         /*
@@ -161,9 +180,9 @@ static irqreturn_t rsxx_isr(int irq, void *pdata)
 }
 
 /*----------------- Card Event Handler -------------------*/
-static char *rsxx_card_state_to_str(unsigned int state)
+static const char * const rsxx_card_state_to_str(unsigned int state)
 {
-        static char *state_strings[] = {
+        static const char * const state_strings[] = {
                 "Unknown", "Shutdown", "Starting", "Formatting",
                 "Uninitialized", "Good", "Shutting Down",
                 "Fault", "Read Only Fault", "dStroying"
@@ -304,6 +323,192 @@ static int card_shutdown(struct rsxx_cardinfo *card)
         return 0;
 }
 
+static int rsxx_eeh_frozen(struct pci_dev *dev)
+{
+        struct rsxx_cardinfo *card = pci_get_drvdata(dev);
+        int i;
+        int st;
+
+        dev_warn(&dev->dev, "IBM FlashSystem PCI: preparing for slot reset.\n");
+
+        card->eeh_state = 1;
+        rsxx_mask_interrupts(card);
+
+        /*
+         * We need to guarantee that the write for eeh_state and masking
+         * interrupts does not become reordered. This will prevent a possible
+         * race condition with the EEH code.
+         */
+        wmb();
+
+        pci_disable_device(dev);
+
+        st = rsxx_eeh_save_issued_dmas(card);
+        if (st)
+                return st;
+
+        rsxx_eeh_save_issued_creg(card);
+
+        for (i = 0; i < card->n_targets; i++) {
+                if (card->ctrl[i].status.buf)
+                        pci_free_consistent(card->dev, STATUS_BUFFER_SIZE8,
+                                            card->ctrl[i].status.buf,
+                                            card->ctrl[i].status.dma_addr);
+                if (card->ctrl[i].cmd.buf)
+                        pci_free_consistent(card->dev, COMMAND_BUFFER_SIZE8,
+                                            card->ctrl[i].cmd.buf,
+                                            card->ctrl[i].cmd.dma_addr);
+        }
+
+        return 0;
+}
+
+static void rsxx_eeh_failure(struct pci_dev *dev)
+{
+        struct rsxx_cardinfo *card = pci_get_drvdata(dev);
+        int i;
+
+        dev_err(&dev->dev, "IBM FlashSystem PCI: disabling failed card.\n");
+
+        card->eeh_state = 1;
+
+        for (i = 0; i < card->n_targets; i++)
+                del_timer_sync(&card->ctrl[i].activity_timer);
+
+        rsxx_eeh_cancel_dmas(card);
+}
+
+static int rsxx_eeh_fifo_flush_poll(struct rsxx_cardinfo *card)
+{
+        unsigned int status;
+        int iter = 0;
+
+        /* We need to wait for the hardware to reset */
+        while (iter++ < 10) {
+                status = ioread32(card->regmap + PCI_RECONFIG);
+
+                if (status & RSXX_FLUSH_BUSY) {
+                        ssleep(1);
+                        continue;
+                }
+
+                if (status & RSXX_FLUSH_TIMEOUT)
+                        dev_warn(CARD_TO_DEV(card), "HW: flash controller timeout\n");
+                return 0;
+        }
+
+        /* Hardware failed resetting itself. */
+        return -1;
+}
+
+static pci_ers_result_t rsxx_error_detected(struct pci_dev *dev,
+                                            enum pci_channel_state error)
+{
+        int st;
+
+        if (dev->revision < RSXX_EEH_SUPPORT)
+                return PCI_ERS_RESULT_NONE;
+
+        if (error == pci_channel_io_perm_failure) {
+                rsxx_eeh_failure(dev);
+                return PCI_ERS_RESULT_DISCONNECT;
+        }
+
+        st = rsxx_eeh_frozen(dev);
+        if (st) {
+                dev_err(&dev->dev, "Slot reset setup failed\n");
+                rsxx_eeh_failure(dev);
+                return PCI_ERS_RESULT_DISCONNECT;
+        }
+
+        return PCI_ERS_RESULT_NEED_RESET;
+}
+
+static pci_ers_result_t rsxx_slot_reset(struct pci_dev *dev)
+{
+        struct rsxx_cardinfo *card = pci_get_drvdata(dev);
+        unsigned long flags;
+        int i;
+        int st;
+
+        dev_warn(&dev->dev,
+                "IBM FlashSystem PCI: recovering from slot reset.\n");
+
+        st = pci_enable_device(dev);
+        if (st)
+                goto failed_hw_setup;
+
+        pci_set_master(dev);
+
+        st = rsxx_eeh_fifo_flush_poll(card);
+        if (st)
+                goto failed_hw_setup;
+
+        rsxx_dma_queue_reset(card);
+
+        for (i = 0; i < card->n_targets; i++) {
+                st = rsxx_hw_buffers_init(dev, &card->ctrl[i]);
+                if (st)
+                        goto failed_hw_buffers_init;
+        }
+
+        if (card->config_valid)
+                rsxx_dma_configure(card);
+
+        /* Clears the ISR register from spurious interrupts */
+        st = ioread32(card->regmap + ISR);
+
+        card->eeh_state = 0;
+
+        st = rsxx_eeh_remap_dmas(card);
+        if (st)
+                goto failed_remap_dmas;
+
+        spin_lock_irqsave(&card->irq_lock, flags);
+        if (card->n_targets & RSXX_MAX_TARGETS)
+                rsxx_enable_ier_and_isr(card, CR_INTR_ALL_G);
+        else
+                rsxx_enable_ier_and_isr(card, CR_INTR_ALL_C);
+        spin_unlock_irqrestore(&card->irq_lock, flags);
+
+        rsxx_kick_creg_queue(card);
+
+        for (i = 0; i < card->n_targets; i++) {
+                spin_lock(&card->ctrl[i].queue_lock);
+                if (list_empty(&card->ctrl[i].queue)) {
+                        spin_unlock(&card->ctrl[i].queue_lock);
+                        continue;
+                }
+                spin_unlock(&card->ctrl[i].queue_lock);
+
+                queue_work(card->ctrl[i].issue_wq,
+                                &card->ctrl[i].issue_dma_work);
+        }
+
+        dev_info(&dev->dev, "IBM FlashSystem PCI: recovery complete.\n");
+
+        return PCI_ERS_RESULT_RECOVERED;
+
+failed_hw_buffers_init:
+failed_remap_dmas:
+        for (i = 0; i < card->n_targets; i++) {
+                if (card->ctrl[i].status.buf)
+                        pci_free_consistent(card->dev,
+                                        STATUS_BUFFER_SIZE8,
+                                        card->ctrl[i].status.buf,
+                                        card->ctrl[i].status.dma_addr);
+                if (card->ctrl[i].cmd.buf)
+                        pci_free_consistent(card->dev,
+                                        COMMAND_BUFFER_SIZE8,
+                                        card->ctrl[i].cmd.buf,
+                                        card->ctrl[i].cmd.dma_addr);
+        }
+failed_hw_setup:
+        rsxx_eeh_failure(dev);
+        return PCI_ERS_RESULT_DISCONNECT;
+
+}
+
 /*----------------- Driver Initialization & Setup -------------------*/
 /* Returns:   0 if the driver is compatible with the device
              -1 if the driver is NOT compatible with the device */
@@ -383,6 +588,7 @@ static int rsxx_pci_probe(struct pci_dev *dev,
 
         spin_lock_init(&card->irq_lock);
         card->halt = 0;
+        card->eeh_state = 0;
 
         spin_lock_irq(&card->irq_lock);
         rsxx_disable_ier_and_isr(card, CR_INTR_ALL);
@@ -538,9 +744,6 @@ static void rsxx_pci_remove(struct pci_dev *dev)
         rsxx_disable_ier_and_isr(card, CR_INTR_EVENT);
         spin_unlock_irqrestore(&card->irq_lock, flags);
 
-        /* Prevent work_structs from re-queuing themselves. */
-        card->halt = 1;
-
         cancel_work_sync(&card->event_work);
 
         rsxx_destroy_dev(card);
@@ -549,6 +752,10 @@ static void rsxx_pci_remove(struct pci_dev *dev)
         spin_lock_irqsave(&card->irq_lock, flags);
         rsxx_disable_ier_and_isr(card, CR_INTR_ALL);
         spin_unlock_irqrestore(&card->irq_lock, flags);
+
+        /* Prevent work_structs from re-queuing themselves. */
+        card->halt = 1;
+
         free_irq(dev->irq, card);
 
         if (!force_legacy)
@@ -592,11 +799,14 @@ static void rsxx_pci_shutdown(struct pci_dev *dev)
         card_shutdown(card);
 }
 
+static const struct pci_error_handlers rsxx_err_handler = {
+        .error_detected = rsxx_error_detected,
+        .slot_reset     = rsxx_slot_reset,
+};
+
 static DEFINE_PCI_DEVICE_TABLE(rsxx_pci_ids) = {
-        {PCI_DEVICE(PCI_VENDOR_ID_TMS_IBM, PCI_DEVICE_ID_RS70_FLASH)},
-        {PCI_DEVICE(PCI_VENDOR_ID_TMS_IBM, PCI_DEVICE_ID_RS70D_FLASH)},
-        {PCI_DEVICE(PCI_VENDOR_ID_TMS_IBM, PCI_DEVICE_ID_RS80_FLASH)},
-        {PCI_DEVICE(PCI_VENDOR_ID_TMS_IBM, PCI_DEVICE_ID_RS81_FLASH)},
+        {PCI_DEVICE(PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_FS70_FLASH)},
+        {PCI_DEVICE(PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_FS80_FLASH)},
         {0,},
 };
 
@@ -609,6 +819,7 @@ static struct pci_driver rsxx_pci_driver = {
         .remove         = rsxx_pci_remove,
         .suspend        = rsxx_pci_suspend,
         .shutdown       = rsxx_pci_shutdown,
+        .err_handler    = &rsxx_err_handler,
 };
 
 static int __init rsxx_core_init(void)
diff --git a/drivers/block/rsxx/cregs.c b/drivers/block/rsxx/cregs.c
index 80bbe639fccd..4b5c020a0a65 100644
--- a/drivers/block/rsxx/cregs.c
+++ b/drivers/block/rsxx/cregs.c
@@ -58,7 +58,7 @@ static struct kmem_cache *creg_cmd_pool;
 #error Unknown endianess!!! Aborting...
 #endif
 
-static void copy_to_creg_data(struct rsxx_cardinfo *card,
+static int copy_to_creg_data(struct rsxx_cardinfo *card,
                               int cnt8,
                               void *buf,
                               unsigned int stream)
@@ -66,6 +66,9 @@ static void copy_to_creg_data(struct rsxx_cardinfo *card,
         int i = 0;
         u32 *data = buf;
 
+        if (unlikely(card->eeh_state))
+                return -EIO;
+
         for (i = 0; cnt8 > 0; i++, cnt8 -= 4) {
                 /*
                  * Firmware implementation makes it necessary to byte swap on
@@ -76,10 +79,12 @@ static void copy_to_creg_data(struct rsxx_cardinfo *card,
                 else
                         iowrite32(data[i], card->regmap + CREG_DATA(i));
         }
+
+        return 0;
 }
 
 
-static void copy_from_creg_data(struct rsxx_cardinfo *card,
+static int copy_from_creg_data(struct rsxx_cardinfo *card,
                                 int cnt8,
                                 void *buf,
                                 unsigned int stream)
@@ -87,6 +92,9 @@ static void copy_from_creg_data(struct rsxx_cardinfo *card,
         int i = 0;
         u32 *data = buf;
 
+        if (unlikely(card->eeh_state))
+                return -EIO;
+
         for (i = 0; cnt8 > 0; i++, cnt8 -= 4) {
                 /*
                  * Firmware implementation makes it necessary to byte swap on
@@ -97,41 +105,31 @@ static void copy_from_creg_data(struct rsxx_cardinfo *card,
                 else
                         data[i] = ioread32(card->regmap + CREG_DATA(i));
         }
-}
-
-static struct creg_cmd *pop_active_cmd(struct rsxx_cardinfo *card)
-{
-        struct creg_cmd *cmd;
 
-        /*
-         * Spin lock is needed because this can be called in atomic/interrupt
-         * context.
-         */
-        spin_lock_bh(&card->creg_ctrl.lock);
-        cmd = card->creg_ctrl.active_cmd;
-        card->creg_ctrl.active_cmd = NULL;
-        spin_unlock_bh(&card->creg_ctrl.lock);
-
-        return cmd;
+        return 0;
 }
 
 static void creg_issue_cmd(struct rsxx_cardinfo *card, struct creg_cmd *cmd)
 {
+        int st;
+
+        if (unlikely(card->eeh_state))
+                return;
+
         iowrite32(cmd->addr, card->regmap + CREG_ADD);
         iowrite32(cmd->cnt8, card->regmap + CREG_CNT);
 
         if (cmd->op == CREG_OP_WRITE) {
-                if (cmd->buf)
-                        copy_to_creg_data(card, cmd->cnt8,
-                                          cmd->buf, cmd->stream);
+                if (cmd->buf) {
+                        st = copy_to_creg_data(card, cmd->cnt8,
+                                               cmd->buf, cmd->stream);
+                        if (st)
+                                return;
+                }
         }
 
-        /*
-         * Data copy must complete before initiating the command. This is
-         * needed for weakly ordered processors (i.e. PowerPC), so that all
-         * neccessary registers are written before we kick the hardware.
-         */
-        wmb();
+        if (unlikely(card->eeh_state))
+                return;
 
         /* Setting the valid bit will kick off the command. */
         iowrite32(cmd->op, card->regmap + CREG_CMD);
@@ -196,11 +194,11 @@ static int creg_queue_cmd(struct rsxx_cardinfo *card,
         cmd->cb_private = cb_private;
         cmd->status     = 0;
 
-        spin_lock(&card->creg_ctrl.lock);
+        spin_lock_bh(&card->creg_ctrl.lock);
         list_add_tail(&cmd->list, &card->creg_ctrl.queue);
         card->creg_ctrl.q_depth++;
         creg_kick_queue(card);
-        spin_unlock(&card->creg_ctrl.lock);
+        spin_unlock_bh(&card->creg_ctrl.lock);
 
         return 0;
 }
@@ -210,7 +208,11 @@ static void creg_cmd_timed_out(unsigned long data)
         struct rsxx_cardinfo *card = (struct rsxx_cardinfo *) data;
         struct creg_cmd *cmd;
 
-        cmd = pop_active_cmd(card);
+        spin_lock(&card->creg_ctrl.lock);
+        cmd = card->creg_ctrl.active_cmd;
+        card->creg_ctrl.active_cmd = NULL;
+        spin_unlock(&card->creg_ctrl.lock);
+
         if (cmd == NULL) {
                 card->creg_ctrl.creg_stats.creg_timeout++;
                 dev_warn(CARD_TO_DEV(card),
@@ -247,7 +249,11 @@ static void creg_cmd_done(struct work_struct *work)
         if (del_timer_sync(&card->creg_ctrl.cmd_timer) == 0)
                 card->creg_ctrl.creg_stats.failed_cancel_timer++;
 
-        cmd = pop_active_cmd(card);
+        spin_lock_bh(&card->creg_ctrl.lock);
+        cmd = card->creg_ctrl.active_cmd;
+        card->creg_ctrl.active_cmd = NULL;
+        spin_unlock_bh(&card->creg_ctrl.lock);
+
         if (cmd == NULL) {
                 dev_err(CARD_TO_DEV(card),
                         "Spurious creg interrupt!\n");
@@ -287,7 +293,7 @@ static void creg_cmd_done(struct work_struct *work)
                         goto creg_done;
                 }
 
-                copy_from_creg_data(card, cnt8, cmd->buf, cmd->stream);
+                st = copy_from_creg_data(card, cnt8, cmd->buf, cmd->stream);
         }
 
 creg_done:
@@ -296,10 +302,10 @@ creg_done:
 
         kmem_cache_free(creg_cmd_pool, cmd);
 
-        spin_lock(&card->creg_ctrl.lock);
+        spin_lock_bh(&card->creg_ctrl.lock);
         card->creg_ctrl.active = 0;
         creg_kick_queue(card);
-        spin_unlock(&card->creg_ctrl.lock);
+        spin_unlock_bh(&card->creg_ctrl.lock);
 }
 
 static void creg_reset(struct rsxx_cardinfo *card)
@@ -324,7 +330,7 @@ static void creg_reset(struct rsxx_cardinfo *card)
                 "Resetting creg interface for recovery\n");
 
         /* Cancel outstanding commands */
-        spin_lock(&card->creg_ctrl.lock);
+        spin_lock_bh(&card->creg_ctrl.lock);
         list_for_each_entry_safe(cmd, tmp, &card->creg_ctrl.queue, list) {
                 list_del(&cmd->list);
                 card->creg_ctrl.q_depth--;
@@ -345,7 +351,7 @@ static void creg_reset(struct rsxx_cardinfo *card)
 
                 card->creg_ctrl.active = 0;
         }
-        spin_unlock(&card->creg_ctrl.lock);
+        spin_unlock_bh(&card->creg_ctrl.lock);
 
         card->creg_ctrl.reset = 0;
         spin_lock_irqsave(&card->irq_lock, flags);
@@ -399,12 +405,12 @@ static int __issue_creg_rw(struct rsxx_cardinfo *card,
                 return st;
 
         /*
-         * This timeout is neccessary for unresponsive hardware. The additional
+         * This timeout is necessary for unresponsive hardware. The additional
          * 20 seconds to used to guarantee that each cregs requests has time to
          * complete.
          */
-        timeout = msecs_to_jiffies((CREG_TIMEOUT_MSEC *
-                                card->creg_ctrl.q_depth) + 20000);
+        timeout = msecs_to_jiffies(CREG_TIMEOUT_MSEC *
+                                   card->creg_ctrl.q_depth + 20000);
 
         /*
          * The creg interface is guaranteed to complete. It has a timeout
@@ -690,6 +696,32 @@ int rsxx_reg_access(struct rsxx_cardinfo *card,
         return 0;
 }
 
+void rsxx_eeh_save_issued_creg(struct rsxx_cardinfo *card)
+{
+        struct creg_cmd *cmd = NULL;
+
+        cmd = card->creg_ctrl.active_cmd;
+        card->creg_ctrl.active_cmd = NULL;
+
+        if (cmd) {
+                del_timer_sync(&card->creg_ctrl.cmd_timer);
+
+                spin_lock_bh(&card->creg_ctrl.lock);
+                list_add(&cmd->list, &card->creg_ctrl.queue);
+                card->creg_ctrl.q_depth++;
+                card->creg_ctrl.active = 0;
+                spin_unlock_bh(&card->creg_ctrl.lock);
+        }
+}
+
+void rsxx_kick_creg_queue(struct rsxx_cardinfo *card)
+{
+        spin_lock_bh(&card->creg_ctrl.lock);
+        if (!list_empty(&card->creg_ctrl.queue))
+                creg_kick_queue(card);
+        spin_unlock_bh(&card->creg_ctrl.lock);
+}
+
 /*------------ Initialization & Setup --------------*/
 int rsxx_creg_setup(struct rsxx_cardinfo *card)
 {
@@ -712,7 +744,7 @@ void rsxx_creg_destroy(struct rsxx_cardinfo *card)
         int cnt = 0;
 
         /* Cancel outstanding commands */
-        spin_lock(&card->creg_ctrl.lock);
+        spin_lock_bh(&card->creg_ctrl.lock);
         list_for_each_entry_safe(cmd, tmp, &card->creg_ctrl.queue, list) {
                 list_del(&cmd->list);
                 if (cmd->cb)
@@ -737,7 +769,7 @@ void rsxx_creg_destroy(struct rsxx_cardinfo *card)
                         "Canceled active creg command\n");
                 kmem_cache_free(creg_cmd_pool, cmd);
         }
-        spin_unlock(&card->creg_ctrl.lock);
+        spin_unlock_bh(&card->creg_ctrl.lock);
 
         cancel_work_sync(&card->creg_ctrl.done_work);
 }
diff --git a/drivers/block/rsxx/dma.c b/drivers/block/rsxx/dma.c
index 63176e67662f..0607513cfb41 100644
--- a/drivers/block/rsxx/dma.c
+++ b/drivers/block/rsxx/dma.c
@@ -28,7 +28,7 @@
 struct rsxx_dma {
         struct list_head         list;
         u8                       cmd;
-        unsigned int             laddr;     /* Logical address on the ramsan */
+        unsigned int             laddr;     /* Logical address */
         struct {
                 u32              off;
                 u32              cnt;
@@ -81,9 +81,6 @@ enum rsxx_hw_status {
         HW_STATUS_FAULT         = 0x08,
 };
 
-#define STATUS_BUFFER_SIZE8     4096
-#define COMMAND_BUFFER_SIZE8    4096
-
 static struct kmem_cache *rsxx_dma_pool;
 
 struct dma_tracker {
@@ -122,7 +119,7 @@ static unsigned int rsxx_get_dma_tgt(struct rsxx_cardinfo *card, u64 addr8)
         return tgt;
 }
 
-static void rsxx_dma_queue_reset(struct rsxx_cardinfo *card)
+void rsxx_dma_queue_reset(struct rsxx_cardinfo *card)
 {
         /* Reset all DMA Command/Status Queues */
         iowrite32(DMA_QUEUE_RESET, card->regmap + RESET);
@@ -210,7 +207,8 @@ static void dma_intr_coal_auto_tune(struct rsxx_cardinfo *card)
         u32 q_depth = 0;
         u32 intr_coal;
 
-        if (card->config.data.intr_coal.mode != RSXX_INTR_COAL_AUTO_TUNE)
+        if (card->config.data.intr_coal.mode != RSXX_INTR_COAL_AUTO_TUNE ||
+            unlikely(card->eeh_state))
                 return;
 
         for (i = 0; i < card->n_targets; i++)
@@ -223,31 +221,26 @@ static void dma_intr_coal_auto_tune(struct rsxx_cardinfo *card)
 }
 
 /*----------------- RSXX DMA Handling -------------------*/
-static void rsxx_complete_dma(struct rsxx_cardinfo *card,
+static void rsxx_complete_dma(struct rsxx_dma_ctrl *ctrl,
                                   struct rsxx_dma *dma,
                                   unsigned int status)
 {
         if (status & DMA_SW_ERR)
-                printk_ratelimited(KERN_ERR
-                                   "SW Error in DMA(cmd x%02x, laddr x%08x)\n",
-                                   dma->cmd, dma->laddr);
+                ctrl->stats.dma_sw_err++;
         if (status & DMA_HW_FAULT)
-                printk_ratelimited(KERN_ERR
-                                   "HW Fault in DMA(cmd x%02x, laddr x%08x)\n",
-                                   dma->cmd, dma->laddr);
+                ctrl->stats.dma_hw_fault++;
         if (status & DMA_CANCELLED)
-                printk_ratelimited(KERN_ERR
-                                   "DMA Cancelled(cmd x%02x, laddr x%08x)\n",
-                                   dma->cmd, dma->laddr);
+                ctrl->stats.dma_cancelled++;
 
         if (dma->dma_addr)
-                pci_unmap_page(card->dev, dma->dma_addr, get_dma_size(dma),
+                pci_unmap_page(ctrl->card->dev, dma->dma_addr,
+                               get_dma_size(dma),
                                dma->cmd == HW_CMD_BLK_WRITE ?
                                            PCI_DMA_TODEVICE :
                                            PCI_DMA_FROMDEVICE);
 
         if (dma->cb)
-                dma->cb(card, dma->cb_data, status ? 1 : 0);
+                dma->cb(ctrl->card, dma->cb_data, status ? 1 : 0);
 
         kmem_cache_free(rsxx_dma_pool, dma);
 }
@@ -330,14 +323,15 @@ static void rsxx_handle_dma_error(struct rsxx_dma_ctrl *ctrl,
         if (requeue_cmd)
                 rsxx_requeue_dma(ctrl, dma);
         else
-                rsxx_complete_dma(ctrl->card, dma, status);
+                rsxx_complete_dma(ctrl, dma, status);
 }
 
 static void dma_engine_stalled(unsigned long data)
 {
         struct rsxx_dma_ctrl *ctrl = (struct rsxx_dma_ctrl *)data;
 
-        if (atomic_read(&ctrl->stats.hw_q_depth) == 0)
+        if (atomic_read(&ctrl->stats.hw_q_depth) == 0 ||
+            unlikely(ctrl->card->eeh_state))
                 return;
 
         if (ctrl->cmd.idx != ioread32(ctrl->regmap + SW_CMD_IDX)) {
@@ -369,7 +363,8 @@ static void rsxx_issue_dmas(struct work_struct *work)
         ctrl = container_of(work, struct rsxx_dma_ctrl, issue_dma_work);
         hw_cmd_buf = ctrl->cmd.buf;
 
-        if (unlikely(ctrl->card->halt))
+        if (unlikely(ctrl->card->halt) ||
+            unlikely(ctrl->card->eeh_state))
                 return;
 
         while (1) {
@@ -397,7 +392,7 @@ static void rsxx_issue_dmas(struct work_struct *work)
                  */
                 if (unlikely(ctrl->card->dma_fault)) {
                         push_tracker(ctrl->trackers, tag);
-                        rsxx_complete_dma(ctrl->card, dma, DMA_CANCELLED);
+                        rsxx_complete_dma(ctrl, dma, DMA_CANCELLED);
                         continue;
                 }
 
@@ -432,19 +427,15 @@ static void rsxx_issue_dmas(struct work_struct *work)
 
         /* Let HW know we've queued commands. */
         if (cmds_pending) {
-                /*
-                 * We must guarantee that the CPU writes to 'ctrl->cmd.buf'
-                 * (which is in PCI-consistent system-memory) from the loop
-                 * above make it into the coherency domain before the
-                 * following PIO "trigger" updating the cmd.idx.  A WMB is
-                 * sufficient. We need not explicitly CPU cache-flush since
-                 * the memory is a PCI-consistent (ie; coherent) mapping.
-                 */
-                wmb();
-
                 atomic_add(cmds_pending, &ctrl->stats.hw_q_depth);
                 mod_timer(&ctrl->activity_timer,
                           jiffies + DMA_ACTIVITY_TIMEOUT);
+
+                if (unlikely(ctrl->card->eeh_state)) {
+                        del_timer_sync(&ctrl->activity_timer);
+                        return;
+                }
+
                 iowrite32(ctrl->cmd.idx, ctrl->regmap + SW_CMD_IDX);
         }
 }
@@ -463,7 +454,8 @@ static void rsxx_dma_done(struct work_struct *work)
         hw_st_buf = ctrl->status.buf;
 
         if (unlikely(ctrl->card->halt) ||
-            unlikely(ctrl->card->dma_fault))
+            unlikely(ctrl->card->dma_fault) ||
+            unlikely(ctrl->card->eeh_state))
                 return;
 
         count = le16_to_cpu(hw_st_buf[ctrl->status.idx].count);
@@ -508,7 +500,7 @@ static void rsxx_dma_done(struct work_struct *work)
                 if (status)
                         rsxx_handle_dma_error(ctrl, dma, status);
                 else
-                        rsxx_complete_dma(ctrl->card, dma, 0);
+                        rsxx_complete_dma(ctrl, dma, 0);
 
                 push_tracker(ctrl->trackers, tag);
 
@@ -727,20 +719,54 @@ bvec_err:
 
 
 /*----------------- DMA Engine Initialization & Setup -------------------*/
+int rsxx_hw_buffers_init(struct pci_dev *dev, struct rsxx_dma_ctrl *ctrl)
+{
+        ctrl->status.buf = pci_alloc_consistent(dev, STATUS_BUFFER_SIZE8,
+                                &ctrl->status.dma_addr);
+        ctrl->cmd.buf = pci_alloc_consistent(dev, COMMAND_BUFFER_SIZE8,
+                                &ctrl->cmd.dma_addr);
+        if (ctrl->status.buf == NULL || ctrl->cmd.buf == NULL)
+                return -ENOMEM;
+
+        memset(ctrl->status.buf, 0xac, STATUS_BUFFER_SIZE8);
+        iowrite32(lower_32_bits(ctrl->status.dma_addr),
+                ctrl->regmap + SB_ADD_LO);
+        iowrite32(upper_32_bits(ctrl->status.dma_addr),
+                ctrl->regmap + SB_ADD_HI);
+
+        memset(ctrl->cmd.buf, 0x83, COMMAND_BUFFER_SIZE8);
+        iowrite32(lower_32_bits(ctrl->cmd.dma_addr), ctrl->regmap + CB_ADD_LO);
+        iowrite32(upper_32_bits(ctrl->cmd.dma_addr), ctrl->regmap + CB_ADD_HI);
+
+        ctrl->status.idx = ioread32(ctrl->regmap + HW_STATUS_CNT);
+        if (ctrl->status.idx > RSXX_MAX_OUTSTANDING_CMDS) {
+                dev_crit(&dev->dev, "Failed reading status cnt x%x\n",
+                        ctrl->status.idx);
+                return -EINVAL;
+        }
+        iowrite32(ctrl->status.idx, ctrl->regmap + HW_STATUS_CNT);
+        iowrite32(ctrl->status.idx, ctrl->regmap + SW_STATUS_CNT);
+
+        ctrl->cmd.idx = ioread32(ctrl->regmap + HW_CMD_IDX);
+        if (ctrl->cmd.idx > RSXX_MAX_OUTSTANDING_CMDS) {
+                dev_crit(&dev->dev, "Failed reading cmd cnt x%x\n",
+                        ctrl->status.idx);
+                return -EINVAL;
+        }
+        iowrite32(ctrl->cmd.idx, ctrl->regmap + HW_CMD_IDX);
+        iowrite32(ctrl->cmd.idx, ctrl->regmap + SW_CMD_IDX);
+
+        return 0;
+}
+
 static int rsxx_dma_ctrl_init(struct pci_dev *dev,
                                   struct rsxx_dma_ctrl *ctrl)
 {
         int i;
+        int st;
 
         memset(&ctrl->stats, 0, sizeof(ctrl->stats));
 
-        ctrl->status.buf = pci_alloc_consistent(dev, STATUS_BUFFER_SIZE8,
-                                                &ctrl->status.dma_addr);
-        ctrl->cmd.buf = pci_alloc_consistent(dev, COMMAND_BUFFER_SIZE8,
-                                             &ctrl->cmd.dma_addr);
-        if (ctrl->status.buf == NULL || ctrl->cmd.buf == NULL)
-                return -ENOMEM;
-
         ctrl->trackers = vmalloc(DMA_TRACKER_LIST_SIZE8);
         if (!ctrl->trackers)
                 return -ENOMEM;
@@ -770,35 +796,9 @@ static int rsxx_dma_ctrl_init(struct pci_dev *dev,
         INIT_WORK(&ctrl->issue_dma_work, rsxx_issue_dmas);
         INIT_WORK(&ctrl->dma_done_work, rsxx_dma_done);
 
-        memset(ctrl->status.buf, 0xac, STATUS_BUFFER_SIZE8);
-        iowrite32(lower_32_bits(ctrl->status.dma_addr),
-                  ctrl->regmap + SB_ADD_LO);
-        iowrite32(upper_32_bits(ctrl->status.dma_addr),
-                  ctrl->regmap + SB_ADD_HI);
-
-        memset(ctrl->cmd.buf, 0x83, COMMAND_BUFFER_SIZE8);
-        iowrite32(lower_32_bits(ctrl->cmd.dma_addr), ctrl->regmap + CB_ADD_LO);
-        iowrite32(upper_32_bits(ctrl->cmd.dma_addr), ctrl->regmap + CB_ADD_HI);
-
-        ctrl->status.idx = ioread32(ctrl->regmap + HW_STATUS_CNT);
-        if (ctrl->status.idx > RSXX_MAX_OUTSTANDING_CMDS) {
-                dev_crit(&dev->dev, "Failed reading status cnt x%x\n",
-                         ctrl->status.idx);
-                return -EINVAL;
-        }
-        iowrite32(ctrl->status.idx, ctrl->regmap + HW_STATUS_CNT);
-        iowrite32(ctrl->status.idx, ctrl->regmap + SW_STATUS_CNT);
-
-        ctrl->cmd.idx = ioread32(ctrl->regmap + HW_CMD_IDX);
-        if (ctrl->cmd.idx > RSXX_MAX_OUTSTANDING_CMDS) {
-                dev_crit(&dev->dev, "Failed reading cmd cnt x%x\n",
-                         ctrl->status.idx);
-                return -EINVAL;
-        }
-        iowrite32(ctrl->cmd.idx, ctrl->regmap + HW_CMD_IDX);
-        iowrite32(ctrl->cmd.idx, ctrl->regmap + SW_CMD_IDX);
-
-        wmb();
+        st = rsxx_hw_buffers_init(dev, ctrl);
+        if (st)
+                return st;
 
         return 0;
 }
@@ -834,7 +834,7 @@ static int rsxx_dma_stripe_setup(struct rsxx_cardinfo *card,
         return 0;
 }
 
-static int rsxx_dma_configure(struct rsxx_cardinfo *card)
+int rsxx_dma_configure(struct rsxx_cardinfo *card)
 {
         u32 intr_coal;
 
@@ -980,6 +980,103 @@ void rsxx_dma_destroy(struct rsxx_cardinfo *card)
         }
 }
 
+int rsxx_eeh_save_issued_dmas(struct rsxx_cardinfo *card)
+{
+        int i;
+        int j;
+        int cnt;
+        struct rsxx_dma *dma;
+        struct list_head *issued_dmas;
+
+        issued_dmas = kzalloc(sizeof(*issued_dmas) * card->n_targets,
+                              GFP_KERNEL);
+        if (!issued_dmas)
+                return -ENOMEM;
+
+        for (i = 0; i < card->n_targets; i++) {
+                INIT_LIST_HEAD(&issued_dmas[i]);
+                cnt = 0;
+                for (j = 0; j < RSXX_MAX_OUTSTANDING_CMDS; j++) {
+                        dma = get_tracker_dma(card->ctrl[i].trackers, j);
+                        if (dma == NULL)
+                                continue;
+
+                        if (dma->cmd == HW_CMD_BLK_WRITE)
+                                card->ctrl[i].stats.writes_issued--;
+                        else if (dma->cmd == HW_CMD_BLK_DISCARD)
+                                card->ctrl[i].stats.discards_issued--;
+                        else
+                                card->ctrl[i].stats.reads_issued--;
+
+                        list_add_tail(&dma->list, &issued_dmas[i]);
+                        push_tracker(card->ctrl[i].trackers, j);
+                        cnt++;
+                }
+
+                spin_lock(&card->ctrl[i].queue_lock);
+                list_splice(&issued_dmas[i], &card->ctrl[i].queue);
+
+                atomic_sub(cnt, &card->ctrl[i].stats.hw_q_depth);
+                card->ctrl[i].stats.sw_q_depth += cnt;
+                card->ctrl[i].e_cnt = 0;
+
+                list_for_each_entry(dma, &card->ctrl[i].queue, list) {
+                        if (dma->dma_addr)
+                                pci_unmap_page(card->dev, dma->dma_addr,
+                                               get_dma_size(dma),
+                                               dma->cmd == HW_CMD_BLK_WRITE ?
+                                               PCI_DMA_TODEVICE :
+                                               PCI_DMA_FROMDEVICE);
+                }
+                spin_unlock(&card->ctrl[i].queue_lock);
+        }
+
+        kfree(issued_dmas);
+
+        return 0;
+}
+
+void rsxx_eeh_cancel_dmas(struct rsxx_cardinfo *card)
+{
+        struct rsxx_dma *dma;
+        struct rsxx_dma *tmp;
+        int i;
+
+        for (i = 0; i < card->n_targets; i++) {
+                spin_lock(&card->ctrl[i].queue_lock);
+                list_for_each_entry_safe(dma, tmp, &card->ctrl[i].queue, list) {
+                        list_del(&dma->list);
+
+                        rsxx_complete_dma(&card->ctrl[i], dma, DMA_CANCELLED);
+                }
+                spin_unlock(&card->ctrl[i].queue_lock);
+        }
+}
+
+int rsxx_eeh_remap_dmas(struct rsxx_cardinfo *card)
+{
+        struct rsxx_dma *dma;
+        int i;
+
+        for (i = 0; i < card->n_targets; i++) {
+                spin_lock(&card->ctrl[i].queue_lock);
+                list_for_each_entry(dma, &card->ctrl[i].queue, list) {
+                        dma->dma_addr = pci_map_page(card->dev, dma->page,
+                                        dma->pg_off, get_dma_size(dma),
+                                        dma->cmd == HW_CMD_BLK_WRITE ?
+                                        PCI_DMA_TODEVICE :
+                                        PCI_DMA_FROMDEVICE);
+                        if (!dma->dma_addr) {
+                                spin_unlock(&card->ctrl[i].queue_lock);
+                                kmem_cache_free(rsxx_dma_pool, dma);
+                                return -ENOMEM;
+                        }
+                }
+                spin_unlock(&card->ctrl[i].queue_lock);
+        }
+
+        return 0;
+}
 
 int rsxx_dma_init(void)
 {
diff --git a/drivers/block/rsxx/rsxx.h b/drivers/block/rsxx/rsxx.h
index 2e50b65902b7..24ba3642bd89 100644
--- a/drivers/block/rsxx/rsxx.h
+++ b/drivers/block/rsxx/rsxx.h
@@ -27,15 +27,17 @@
 
 /*----------------- IOCTL Definitions -------------------*/
 
+#define RSXX_MAX_DATA 8
+
 struct rsxx_reg_access {
         __u32 addr;
         __u32 cnt;
         __u32 stat;
         __u32 stream;
-        __u32 data[8];
+        __u32 data[RSXX_MAX_DATA];
 };
 
-#define RSXX_MAX_REG_CNT        (8 * (sizeof(__u32)))
+#define RSXX_MAX_REG_CNT        (RSXX_MAX_DATA * (sizeof(__u32)))
 
 #define RSXX_IOC_MAGIC 'r'
 
diff --git a/drivers/block/rsxx/rsxx_cfg.h b/drivers/block/rsxx/rsxx_cfg.h
index c025fe5fdb70..f384c943846d 100644
--- a/drivers/block/rsxx/rsxx_cfg.h
+++ b/drivers/block/rsxx/rsxx_cfg.h
@@ -58,7 +58,7 @@ struct rsxx_card_cfg {
 };
 
 /* Vendor ID Values */
-#define RSXX_VENDOR_ID_TMS_IBM          0
+#define RSXX_VENDOR_ID_IBM              0
 #define RSXX_VENDOR_ID_DSI              1
 #define RSXX_VENDOR_COUNT               2
 
diff --git a/drivers/block/rsxx/rsxx_priv.h b/drivers/block/rsxx/rsxx_priv.h
index a1ac907d8f4c..382e8bf5c03b 100644
--- a/drivers/block/rsxx/rsxx_priv.h
+++ b/drivers/block/rsxx/rsxx_priv.h
@@ -45,16 +45,13 @@
 
 struct proc_cmd;
 
-#define PCI_VENDOR_ID_TMS_IBM           0x15B6
-#define PCI_DEVICE_ID_RS70_FLASH        0x0019
-#define PCI_DEVICE_ID_RS70D_FLASH       0x001A
-#define PCI_DEVICE_ID_RS80_FLASH        0x001C
-#define PCI_DEVICE_ID_RS81_FLASH        0x001E
+#define PCI_DEVICE_ID_FS70_FLASH        0x04A9
+#define PCI_DEVICE_ID_FS80_FLASH        0x04AA
 
 #define RS70_PCI_REV_SUPPORTED  4
 
 #define DRIVER_NAME "rsxx"
-#define DRIVER_VERSION "3.7"
+#define DRIVER_VERSION "4.0"
 
 /* Block size is 4096 */
 #define RSXX_HW_BLK_SHIFT               12
@@ -67,6 +64,9 @@ struct proc_cmd;
 #define RSXX_MAX_OUTSTANDING_CMDS       255
 #define RSXX_CS_IDX_MASK                0xff
 
+#define STATUS_BUFFER_SIZE8     4096
+#define COMMAND_BUFFER_SIZE8    4096
+
 #define RSXX_MAX_TARGETS        8
 
 struct dma_tracker_list;
@@ -91,6 +91,9 @@ struct rsxx_dma_stats {
         u32 discards_failed;
         u32 done_rescheduled;
         u32 issue_rescheduled;
+        u32 dma_sw_err;
+        u32 dma_hw_fault;
+        u32 dma_cancelled;
         u32 sw_q_depth;         /* Number of DMAs on the SW queue. */
         atomic_t hw_q_depth;    /* Number of DMAs queued to HW. */
 };
@@ -116,6 +119,7 @@ struct rsxx_dma_ctrl {
 struct rsxx_cardinfo {
         struct pci_dev          *dev;
         unsigned int            halt;
+        unsigned int            eeh_state;
 
         void                    __iomem *regmap;
         spinlock_t              irq_lock;
@@ -224,6 +228,7 @@ enum rsxx_pci_regmap {
         PERF_RD512_HI   = 0xac,
         PERF_WR512_LO   = 0xb0,
         PERF_WR512_HI   = 0xb4,
+        PCI_RECONFIG    = 0xb8,
 };
 
 enum rsxx_intr {
@@ -237,6 +242,8 @@ enum rsxx_intr {
         CR_INTR_DMA5    = 0x00000080,
         CR_INTR_DMA6    = 0x00000100,
         CR_INTR_DMA7    = 0x00000200,
+        CR_INTR_ALL_C   = 0x0000003f,
+        CR_INTR_ALL_G   = 0x000003ff,
         CR_INTR_DMA_ALL = 0x000003f5,
         CR_INTR_ALL     = 0xffffffff,
 };
@@ -253,8 +260,14 @@ enum rsxx_pci_reset {
         DMA_QUEUE_RESET         = 0x00000001,
 };
 
+enum rsxx_hw_fifo_flush {
+        RSXX_FLUSH_BUSY         = 0x00000002,
+        RSXX_FLUSH_TIMEOUT      = 0x00000004,
+};
+
 enum rsxx_pci_revision {
         RSXX_DISCARD_SUPPORT = 2,
+        RSXX_EEH_SUPPORT     = 3,
 };
 
 enum rsxx_creg_cmd {
@@ -360,11 +373,17 @@ int rsxx_dma_setup(struct rsxx_cardinfo *card);
 void rsxx_dma_destroy(struct rsxx_cardinfo *card);
 int rsxx_dma_init(void);
 void rsxx_dma_cleanup(void);
+void rsxx_dma_queue_reset(struct rsxx_cardinfo *card);
+int rsxx_dma_configure(struct rsxx_cardinfo *card);
 int rsxx_dma_queue_bio(struct rsxx_cardinfo *card,
                            struct bio *bio,
                            atomic_t *n_dmas,
                            rsxx_dma_cb cb,
                            void *cb_data);
+int rsxx_hw_buffers_init(struct pci_dev *dev, struct rsxx_dma_ctrl *ctrl);
+int rsxx_eeh_save_issued_dmas(struct rsxx_cardinfo *card);
+void rsxx_eeh_cancel_dmas(struct rsxx_cardinfo *card);
+int rsxx_eeh_remap_dmas(struct rsxx_cardinfo *card);
 
 /***** cregs.c *****/
 int rsxx_creg_write(struct rsxx_cardinfo *card, u32 addr,
@@ -389,10 +408,11 @@ int rsxx_creg_setup(struct rsxx_cardinfo *card);
 void rsxx_creg_destroy(struct rsxx_cardinfo *card);
 int rsxx_creg_init(void);
 void rsxx_creg_cleanup(void);
-
 int rsxx_reg_access(struct rsxx_cardinfo *card,
                         struct rsxx_reg_access __user *ucmd,
                         int read);
+void rsxx_eeh_save_issued_creg(struct rsxx_cardinfo *card);
+void rsxx_kick_creg_queue(struct rsxx_cardinfo *card);
 
 
 
diff --git a/drivers/block/xen-blkback/blkback.c b/drivers/block/xen-blkback/blkback.c
index de1f319f7bd7..dd5b2fed97e9 100644
--- a/drivers/block/xen-blkback/blkback.c
+++ b/drivers/block/xen-blkback/blkback.c
@@ -164,7 +164,7 @@ static void make_response(struct xen_blkif *blkif, u64 id,
 
 #define foreach_grant_safe(pos, n, rbtree, node) \
         for ((pos) = container_of(rb_first((rbtree)), typeof(*(pos)), node), \
-             (n) = rb_next(&(pos)->node); \
+             (n) = (&(pos)->node != NULL) ? rb_next(&(pos)->node) : NULL; \
              &(pos)->node != NULL; \
              (pos) = container_of(n, typeof(*(pos)), node), \
              (n) = (&(pos)->node != NULL) ? rb_next(&(pos)->node) : NULL)
@@ -381,8 +381,8 @@ irqreturn_t xen_blkif_be_int(int irq, void *dev_id)
 
 static void print_stats(struct xen_blkif *blkif)
 {
-        pr_info("xen-blkback (%s): oo %3d  |  rd %4d  |  wr %4d  |  f %4d"
-                 "  |  ds %4d\n",
+        pr_info("xen-blkback (%s): oo %3llu  |  rd %4llu  |  wr %4llu  |  f %4llu"
+                 "  |  ds %4llu\n",
                  current->comm, blkif->st_oo_req,
                  blkif->st_rd_req, blkif->st_wr_req,
                  blkif->st_f_req, blkif->st_ds_req);
@@ -442,7 +442,7 @@ int xen_blkif_schedule(void *arg)
 }
 
 struct seg_buf {
-        unsigned long buf;
+        unsigned int offset;
         unsigned int nsec;
 };
 /*
@@ -621,30 +621,21 @@ static int xen_blkbk_map(struct blkif_request *req,
                                  * If this is a new persistent grant
                                  * save the handler
                                  */
-                                persistent_gnts[i]->handle = map[j].handle;
-                                persistent_gnts[i]->dev_bus_addr =
-                                        map[j++].dev_bus_addr;
+                                persistent_gnts[i]->handle = map[j++].handle;
                         }
                         pending_handle(pending_req, i) =
                                 persistent_gnts[i]->handle;
 
                         if (ret)
                                 continue;
-
-                        seg[i].buf = persistent_gnts[i]->dev_bus_addr |
-                                (req->u.rw.seg[i].first_sect << 9);
                 } else {
-                        pending_handle(pending_req, i) = map[j].handle;
+                        pending_handle(pending_req, i) = map[j++].handle;
                         bitmap_set(pending_req->unmap_seg, i, 1);
 
-                        if (ret) {
-                                j++;
+                        if (ret)
                                 continue;
-                        }
-
-                        seg[i].buf = map[j++].dev_bus_addr |
-                                (req->u.rw.seg[i].first_sect << 9);
                 }
+                seg[i].offset = (req->u.rw.seg[i].first_sect << 9);
         }
         return ret;
 }
@@ -679,6 +670,16 @@ static int dispatch_discard_io(struct xen_blkif *blkif,
         return err;
 }
 
+static int dispatch_other_io(struct xen_blkif *blkif,
+                             struct blkif_request *req,
+                             struct pending_req *pending_req)
+{
+        free_req(pending_req);
+        make_response(blkif, req->u.other.id, req->operation,
+                      BLKIF_RSP_EOPNOTSUPP);
+        return -EIO;
+}
+
 static void xen_blk_drain_io(struct xen_blkif *blkif)
 {
         atomic_set(&blkif->drain, 1);
@@ -800,17 +801,30 @@ __do_block_io_op(struct xen_blkif *blkif)
 
                 /* Apply all sanity checks to /private copy/ of request. */
                 barrier();
-                if (unlikely(req.operation == BLKIF_OP_DISCARD)) {
+
+                switch (req.operation) {
+                case BLKIF_OP_READ:
+                case BLKIF_OP_WRITE:
+                case BLKIF_OP_WRITE_BARRIER:
+                case BLKIF_OP_FLUSH_DISKCACHE:
+                        if (dispatch_rw_block_io(blkif, &req, pending_req))
+                                goto done;
+                        break;
+                case BLKIF_OP_DISCARD:
                         free_req(pending_req);
                         if (dispatch_discard_io(blkif, &req))
-                                break;
-                } else if (dispatch_rw_block_io(blkif, &req, pending_req))
+                                goto done;
                         break;
+                default:
+                        if (dispatch_other_io(blkif, &req, pending_req))
+                                goto done;
+                        break;
+                }
 
                 /* Yield point for this unbounded loop. */
                 cond_resched();
         }
-
+done:
         return more_to_do;
 }
 
@@ -904,7 +918,8 @@ static int dispatch_rw_block_io(struct xen_blkif *blkif,
                 pr_debug(DRV_PFX "access denied: %s of [%llu,%llu] on dev=%04x\n",
                          operation == READ ? "read" : "write",
                          preq.sector_number,
-                         preq.sector_number + preq.nr_sects, preq.dev);
+                         preq.sector_number + preq.nr_sects,
+                         blkif->vbd.pdevice);
                 goto fail_response;
         }
 
@@ -947,7 +962,7 @@ static int dispatch_rw_block_io(struct xen_blkif *blkif,
                        (bio_add_page(bio,
                                      pages[i],
                                      seg[i].nsec << 9,
-                                     seg[i].buf & ~PAGE_MASK) == 0)) {
+                                     seg[i].offset) == 0)) {
 
                         bio = bio_alloc(GFP_KERNEL, nseg-i);
                         if (unlikely(bio == NULL))
@@ -977,13 +992,7 @@ static int dispatch_rw_block_io(struct xen_blkif *blkif,
                 bio->bi_end_io  = end_block_io_op;
         }
 
-        /*
-         * We set it one so that the last submit_bio does not have to call
-         * atomic_inc.
-         */
         atomic_set(&pending_req->pendcnt, nbio);
-
-        /* Get a reference count for the disk queue and start sending I/O */
         blk_start_plug(&plug);
 
         for (i = 0; i < nbio; i++)
@@ -1011,6 +1020,7 @@ static int dispatch_rw_block_io(struct xen_blkif *blkif,
  fail_put_bio:
         for (i = 0; i < nbio; i++)
                 bio_put(biolist[i]);
+        atomic_set(&pending_req->pendcnt, 1);
         __end_block_io_op(pending_req, -EINVAL);
         msleep(1); /* back off a bit */
         return -EIO;
diff --git a/drivers/block/xen-blkback/common.h b/drivers/block/xen-blkback/common.h
index 6072390c7f57..60103e2517ba 100644
--- a/drivers/block/xen-blkback/common.h
+++ b/drivers/block/xen-blkback/common.h
@@ -77,11 +77,18 @@ struct blkif_x86_32_request_discard {
         uint64_t       nr_sectors;
 } __attribute__((__packed__));
 
+struct blkif_x86_32_request_other {
+        uint8_t        _pad1;
+        blkif_vdev_t   _pad2;
+        uint64_t       id;           /* private guest value, echoed in resp  */
+} __attribute__((__packed__));
+
 struct blkif_x86_32_request {
         uint8_t        operation;    /* BLKIF_OP_???                         */
         union {
                 struct blkif_x86_32_request_rw rw;
                 struct blkif_x86_32_request_discard discard;
+                struct blkif_x86_32_request_other other;
         } u;
 } __attribute__((__packed__));
 
@@ -113,11 +120,19 @@ struct blkif_x86_64_request_discard {
         uint64_t       nr_sectors;
 } __attribute__((__packed__));
 
+struct blkif_x86_64_request_other {
+        uint8_t        _pad1;
+        blkif_vdev_t   _pad2;
+        uint32_t       _pad3;        /* offsetof(blkif_..,u.discard.id)==8   */
+        uint64_t       id;           /* private guest value, echoed in resp  */
+} __attribute__((__packed__));
+
 struct blkif_x86_64_request {
         uint8_t        operation;    /* BLKIF_OP_???                         */
         union {
                 struct blkif_x86_64_request_rw rw;
                 struct blkif_x86_64_request_discard discard;
+                struct blkif_x86_64_request_other other;
         } u;
 } __attribute__((__packed__));
 
@@ -172,7 +187,6 @@ struct persistent_gnt {
         struct page *page;
         grant_ref_t gnt;
         grant_handle_t handle;
-        uint64_t dev_bus_addr;
         struct rb_node node;
 };
 
@@ -208,13 +222,13 @@ struct xen_blkif {
 
         /* statistics */
         unsigned long           st_print;
-        int                     st_rd_req;
-        int                     st_wr_req;
-        int                     st_oo_req;
-        int                     st_f_req;
-        int                     st_ds_req;
-        int                     st_rd_sect;
-        int                     st_wr_sect;
+        unsigned long long                      st_rd_req;
+        unsigned long long                      st_wr_req;
+        unsigned long long                      st_oo_req;
+        unsigned long long                      st_f_req;
+        unsigned long long                      st_ds_req;
+        unsigned long long                      st_rd_sect;
+        unsigned long long                      st_wr_sect;
 
         wait_queue_head_t       waiting_to_free;
 };
@@ -278,6 +292,11 @@ static inline void blkif_get_x86_32_req(struct blkif_request *dst,
                 dst->u.discard.nr_sectors = src->u.discard.nr_sectors;
                 break;
         default:
+                /*
+                 * Don't know how to translate this op. Only get the
+                 * ID so failure can be reported to the frontend.
+                 */
+                dst->u.other.id = src->u.other.id;
                 break;
         }
 }
@@ -309,6 +328,11 @@ static inline void blkif_get_x86_64_req(struct blkif_request *dst,
                 dst->u.discard.nr_sectors = src->u.discard.nr_sectors;
                 break;
         default:
+                /*
+                 * Don't know how to translate this op. Only get the
+                 * ID so failure can be reported to the frontend.
+                 */
+                dst->u.other.id = src->u.other.id;
                 break;
         }
 }
diff --git a/drivers/block/xen-blkback/xenbus.c b/drivers/block/xen-blkback/xenbus.c
index 5e237f630c47..8bfd1bcf95ec 100644
--- a/drivers/block/xen-blkback/xenbus.c
+++ b/drivers/block/xen-blkback/xenbus.c
@@ -230,13 +230,13 @@ int __init xen_blkif_interface_init(void)
         }                                                               \
         static DEVICE_ATTR(name, S_IRUGO, show_##name, NULL)
 
-VBD_SHOW(oo_req,  "%d\n", be->blkif->st_oo_req);
-VBD_SHOW(rd_req,  "%d\n", be->blkif->st_rd_req);
-VBD_SHOW(wr_req,  "%d\n", be->blkif->st_wr_req);
-VBD_SHOW(f_req,  "%d\n", be->blkif->st_f_req);
-VBD_SHOW(ds_req,  "%d\n", be->blkif->st_ds_req);
-VBD_SHOW(rd_sect, "%d\n", be->blkif->st_rd_sect);
-VBD_SHOW(wr_sect, "%d\n", be->blkif->st_wr_sect);
+VBD_SHOW(oo_req,  "%llu\n", be->blkif->st_oo_req);
+VBD_SHOW(rd_req,  "%llu\n", be->blkif->st_rd_req);
+VBD_SHOW(wr_req,  "%llu\n", be->blkif->st_wr_req);
+VBD_SHOW(f_req,  "%llu\n", be->blkif->st_f_req);
+VBD_SHOW(ds_req,  "%llu\n", be->blkif->st_ds_req);
+VBD_SHOW(rd_sect, "%llu\n", be->blkif->st_rd_sect);
+VBD_SHOW(wr_sect, "%llu\n", be->blkif->st_wr_sect);
 
 static struct attribute *xen_vbdstat_attrs[] = {
         &dev_attr_oo_req.attr,
diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c
index c3dae2e0f290..a894f88762d8 100644
--- a/drivers/block/xen-blkfront.c
+++ b/drivers/block/xen-blkfront.c
@@ -44,7 +44,7 @@
 #include <linux/mutex.h>
 #include <linux/scatterlist.h>
 #include <linux/bitmap.h>
-#include <linux/llist.h>
+#include <linux/list.h>
 
 #include <xen/xen.h>
 #include <xen/xenbus.h>
@@ -68,13 +68,12 @@ enum blkif_state {
 struct grant {
         grant_ref_t gref;
         unsigned long pfn;
-        struct llist_node node;
+        struct list_head node;
 };
 
 struct blk_shadow {
         struct blkif_request req;
         struct request *request;
-        unsigned long frame[BLKIF_MAX_SEGMENTS_PER_REQUEST];
         struct grant *grants_used[BLKIF_MAX_SEGMENTS_PER_REQUEST];
 };
 
@@ -105,7 +104,7 @@ struct blkfront_info
         struct work_struct work;
         struct gnttab_free_callback callback;
         struct blk_shadow shadow[BLK_RING_SIZE];
-        struct llist_head persistent_gnts;
+        struct list_head persistent_gnts;
         unsigned int persistent_gnts_c;
         unsigned long shadow_free;
         unsigned int feature_flush;
@@ -165,6 +164,69 @@ static int add_id_to_freelist(struct blkfront_info *info,
         return 0;
 }
 
+static int fill_grant_buffer(struct blkfront_info *info, int num)
+{
+        struct page *granted_page;
+        struct grant *gnt_list_entry, *n;
+        int i = 0;
+
+        while(i < num) {
+                gnt_list_entry = kzalloc(sizeof(struct grant), GFP_NOIO);
+                if (!gnt_list_entry)
+                        goto out_of_memory;
+
+                granted_page = alloc_page(GFP_NOIO);
+                if (!granted_page) {
+                        kfree(gnt_list_entry);
+                        goto out_of_memory;
+                }
+
+                gnt_list_entry->pfn = page_to_pfn(granted_page);
+                gnt_list_entry->gref = GRANT_INVALID_REF;
+                list_add(&gnt_list_entry->node, &info->persistent_gnts);
+                i++;
+        }
+
+        return 0;
+
+out_of_memory:
+        list_for_each_entry_safe(gnt_list_entry, n,
+                                 &info->persistent_gnts, node) {
+                list_del(&gnt_list_entry->node);
+                __free_page(pfn_to_page(gnt_list_entry->pfn));
+                kfree(gnt_list_entry);
+                i--;
+        }
+        BUG_ON(i != 0);
+        return -ENOMEM;
+}
+
+static struct grant *get_grant(grant_ref_t *gref_head,
+                               struct blkfront_info *info)
+{
+        struct grant *gnt_list_entry;
+        unsigned long buffer_mfn;
+
+        BUG_ON(list_empty(&info->persistent_gnts));
+        gnt_list_entry = list_first_entry(&info->persistent_gnts, struct grant,
+                                          node);
+        list_del(&gnt_list_entry->node);
+
+        if (gnt_list_entry->gref != GRANT_INVALID_REF) {
+                info->persistent_gnts_c--;
+                return gnt_list_entry;
+        }
+
+        /* Assign a gref to this page */
+        gnt_list_entry->gref = gnttab_claim_grant_reference(gref_head);
+        BUG_ON(gnt_list_entry->gref == -ENOSPC);
+        buffer_mfn = pfn_to_mfn(gnt_list_entry->pfn);
+        gnttab_grant_foreign_access_ref(gnt_list_entry->gref,
+                                        info->xbdev->otherend_id,
+                                        buffer_mfn, 0);
+        return gnt_list_entry;
+}
+
 static const char *op_name(int op)
 {
         static const char *const names[] = {
@@ -293,7 +355,6 @@ static int blkif_ioctl(struct block_device *bdev, fmode_t mode,
 static int blkif_queue_request(struct request *req)
 {
         struct blkfront_info *info = req->rq_disk->private_data;
-        unsigned long buffer_mfn;
         struct blkif_request *ring_req;
         unsigned long id;
         unsigned int fsect, lsect;
@@ -306,7 +367,6 @@ static int blkif_queue_request(struct request *req)
          */
         bool new_persistent_gnts;
         grant_ref_t gref_head;
-        struct page *granted_page;
         struct grant *gnt_list_entry = NULL;
         struct scatterlist *sg;
 
@@ -370,41 +430,8 @@ static int blkif_queue_request(struct request *req)
                         fsect = sg->offset >> 9;
                         lsect = fsect + (sg->length >> 9) - 1;
 
-                        if (info->persistent_gnts_c) {
-                                BUG_ON(llist_empty(&info->persistent_gnts));
-                                gnt_list_entry = llist_entry(
-                                        llist_del_first(&info->persistent_gnts),
-                                        struct grant, node);
-
-                                ref = gnt_list_entry->gref;
-                                buffer_mfn = pfn_to_mfn(gnt_list_entry->pfn);
-                                info->persistent_gnts_c--;
-                        } else {
-                                ref = gnttab_claim_grant_reference(&gref_head);
-                                BUG_ON(ref == -ENOSPC);
-
-                                gnt_list_entry =
-                                        kmalloc(sizeof(struct grant),
-                                                         GFP_ATOMIC);
-                                if (!gnt_list_entry)
-                                        return -ENOMEM;
-
-                                granted_page = alloc_page(GFP_ATOMIC);
-                                if (!granted_page) {
-                                        kfree(gnt_list_entry);
-                                        return -ENOMEM;
-                                }
-
-                                gnt_list_entry->pfn =
-                                        page_to_pfn(granted_page);
-                                gnt_list_entry->gref = ref;
-
-                                buffer_mfn = pfn_to_mfn(page_to_pfn(
-                                                                granted_page));
-                                gnttab_grant_foreign_access_ref(ref,
-                                        info->xbdev->otherend_id,
-                                        buffer_mfn, 0);
-                        }
+                        gnt_list_entry = get_grant(&gref_head, info);
+                        ref = gnt_list_entry->gref;
 
                         info->shadow[id].grants_used[i] = gnt_list_entry;
 
@@ -435,7 +462,6 @@ static int blkif_queue_request(struct request *req)
                                 kunmap_atomic(shared_data);
                         }
 
-                        info->shadow[id].frame[i] = mfn_to_pfn(buffer_mfn);
                         ring_req->u.rw.seg[i] =
                                         (struct blkif_request_segment) {
                                                 .gref       = ref,
@@ -790,9 +816,8 @@ static void blkif_restart_queue(struct work_struct *work)
 
 static void blkif_free(struct blkfront_info *info, int suspend)
 {
-        struct llist_node *all_gnts;
-        struct grant *persistent_gnt, *tmp;
-        struct llist_node *n;
+        struct grant *persistent_gnt;
+        struct grant *n;
 
         /* Prevent new requests being issued until we fix things up. */
         spin_lock_irq(&info->io_lock);
@@ -803,22 +828,20 @@ static void blkif_free(struct blkfront_info *info, int suspend)
                 blk_stop_queue(info->rq);
 
         /* Remove all persistent grants */
-        if (info->persistent_gnts_c) {
-                all_gnts = llist_del_all(&info->persistent_gnts);
-                persistent_gnt = llist_entry(all_gnts, typeof(*(persistent_gnt)), node);
-                while (persistent_gnt) {
-                        gnttab_end_foreign_access(persistent_gnt->gref, 0, 0UL);
+        if (!list_empty(&info->persistent_gnts)) {
+                list_for_each_entry_safe(persistent_gnt, n,
+                                         &info->persistent_gnts, node) {
+                        list_del(&persistent_gnt->node);
+                        if (persistent_gnt->gref != GRANT_INVALID_REF) {
+                                gnttab_end_foreign_access(persistent_gnt->gref,
+                                                          0, 0UL);
+                                info->persistent_gnts_c--;
+                        }
                         __free_page(pfn_to_page(persistent_gnt->pfn));
-                        tmp = persistent_gnt;
-                        n = persistent_gnt->node.next;
-                        if (n)
-                                persistent_gnt = llist_entry(n, typeof(*(persistent_gnt)), node);
-                        else
-                                persistent_gnt = NULL;
-                        kfree(tmp);
+                        kfree(persistent_gnt);
                 }
-                info->persistent_gnts_c = 0;
         }
+        BUG_ON(info->persistent_gnts_c != 0);
 
         /* No more gnttab callback work. */
         gnttab_cancel_free_callback(&info->callback);
@@ -875,7 +898,7 @@ static void blkif_completion(struct blk_shadow *s, struct blkfront_info *info,
         }
         /* Add the persistent grant into the list of free grants */
         for (i = 0; i < s->req.u.rw.nr_segments; i++) {
-                llist_add(&s->grants_used[i]->node, &info->persistent_gnts);
+                list_add(&s->grants_used[i]->node, &info->persistent_gnts);
                 info->persistent_gnts_c++;
         }
 }
@@ -1013,6 +1036,12 @@ static int setup_blkring(struct xenbus_device *dev,
 
         sg_init_table(info->sg, BLKIF_MAX_SEGMENTS_PER_REQUEST);
 
+        /* Allocate memory for grants */
+        err = fill_grant_buffer(info, BLK_RING_SIZE *
+                                      BLKIF_MAX_SEGMENTS_PER_REQUEST);
+        if (err)
+                goto fail;
+
         err = xenbus_grant_ring(dev, virt_to_mfn(info->ring.sring));
         if (err < 0) {
                 free_page((unsigned long)sring);
@@ -1171,7 +1200,7 @@ static int blkfront_probe(struct xenbus_device *dev,
         spin_lock_init(&info->io_lock);
         info->xbdev = dev;
         info->vdevice = vdevice;
-        init_llist_head(&info->persistent_gnts);
+        INIT_LIST_HEAD(&info->persistent_gnts);
         info->persistent_gnts_c = 0;
         info->connected = BLKIF_STATE_DISCONNECTED;
         INIT_WORK(&info->work, blkif_restart_queue);
@@ -1203,11 +1232,10 @@ static int blkif_recover(struct blkfront_info *info)
         int j;
 
         /* Stage 1: Make a safe copy of the shadow state. */
-        copy = kmalloc(sizeof(info->shadow),
+        copy = kmemdup(info->shadow, sizeof(info->shadow),
                        GFP_NOIO | __GFP_REPEAT | __GFP_HIGH);
         if (!copy)
                 return -ENOMEM;
-        memcpy(copy, info->shadow, sizeof(info->shadow));
 
         /* Stage 2: Set up free list. */
         memset(&info->shadow, 0, sizeof(info->shadow));
@@ -1236,7 +1264,7 @@ static int blkif_recover(struct blkfront_info *info)
                                 gnttab_grant_foreign_access_ref(
                                         req->u.rw.seg[j].gref,
                                         info->xbdev->otherend_id,
-                                        pfn_to_mfn(info->shadow[req->u.rw.id].frame[j]),
+                                        pfn_to_mfn(copy[i].grants_used[j]->pfn),
                                         0);
                 }
                 info->shadow[req->u.rw.id].req = *req;
diff --git a/drivers/bluetooth/ath3k.c b/drivers/bluetooth/ath3k.c
index b282af181b44..6aab00ef4379 100644
--- a/drivers/bluetooth/ath3k.c
+++ b/drivers/bluetooth/ath3k.c
@@ -73,9 +73,11 @@ static struct usb_device_id ath3k_table[] = {
         { USB_DEVICE(0x03F0, 0x311D) },
 
         /* Atheros AR3012 with sflash firmware*/
+        { USB_DEVICE(0x0CF3, 0x0036) },
         { USB_DEVICE(0x0CF3, 0x3004) },
         { USB_DEVICE(0x0CF3, 0x3008) },
         { USB_DEVICE(0x0CF3, 0x311D) },
+        { USB_DEVICE(0x0CF3, 0x817a) },
         { USB_DEVICE(0x13d3, 0x3375) },
         { USB_DEVICE(0x04CA, 0x3004) },
         { USB_DEVICE(0x04CA, 0x3005) },
@@ -107,9 +109,11 @@ MODULE_DEVICE_TABLE(usb, ath3k_table);
 static struct usb_device_id ath3k_blist_tbl[] = {
 
         /* Atheros AR3012 with sflash firmware*/
+        { USB_DEVICE(0x0CF3, 0x0036), .driver_info = BTUSB_ATH3012 },
         { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
         { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
         { USB_DEVICE(0x0cf3, 0x311D), .driver_info = BTUSB_ATH3012 },
+        { USB_DEVICE(0x0CF3, 0x817a), .driver_info = BTUSB_ATH3012 },
         { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
         { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
         { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index e547851870e7..2cc5f774a29c 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -131,9 +131,11 @@ static struct usb_device_id blacklist_table[] = {
         { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
 
         /* Atheros 3012 with sflash firmware */
+        { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
         { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
         { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
         { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
+        { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
         { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
         { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
         { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
diff --git a/drivers/cpufreq/acpi-cpufreq.c b/drivers/cpufreq/acpi-cpufreq.c
index 937bc286591f..57a8774f0b4e 100644
--- a/drivers/cpufreq/acpi-cpufreq.c
+++ b/drivers/cpufreq/acpi-cpufreq.c
@@ -730,7 +730,6 @@ static int acpi_cpufreq_cpu_init(struct cpufreq_policy *policy)
             policy->shared_type == CPUFREQ_SHARED_TYPE_ANY) {
                 cpumask_copy(policy->cpus, perf->shared_cpu_map);
         }
-        cpumask_copy(policy->related_cpus, perf->shared_cpu_map);
 
 #ifdef CONFIG_SMP
         dmi_check_system(sw_any_bug_dmi_table);
@@ -742,7 +741,6 @@ static int acpi_cpufreq_cpu_init(struct cpufreq_policy *policy)
         if (check_amd_hwpstate_cpu(cpu) && !acpi_pstate_strict) {
                 cpumask_clear(policy->cpus);
                 cpumask_set_cpu(cpu, policy->cpus);
-                cpumask_copy(policy->related_cpus, cpu_sibling_mask(cpu));
                 policy->shared_type = CPUFREQ_SHARED_TYPE_HW;
                 pr_info_once(PFX "overriding BIOS provided _PSD data\n");
         }
diff --git a/drivers/cpufreq/cpufreq_stats.c b/drivers/cpufreq/cpufreq_stats.c
index 2fd779eb1ed1..bfd6273fd873 100644
--- a/drivers/cpufreq/cpufreq_stats.c
+++ b/drivers/cpufreq/cpufreq_stats.c
@@ -180,15 +180,19 @@ static void cpufreq_stats_free_sysfs(unsigned int cpu)
 {
         struct cpufreq_policy *policy = cpufreq_cpu_get(cpu);
 
-        if (!cpufreq_frequency_get_table(cpu))
+        if (!policy)
                 return;
 
-        if (policy && !policy_is_shared(policy)) {
+        if (!cpufreq_frequency_get_table(cpu))
+                goto put_ref;
+
+        if (!policy_is_shared(policy)) {
                 pr_debug("%s: Free sysfs stat\n", __func__);
                 sysfs_remove_group(&policy->kobj, &stats_attr_group);
         }
-        if (policy)
-                cpufreq_cpu_put(policy);
+
+put_ref:
+        cpufreq_cpu_put(policy);
 }
 
 static int cpufreq_stats_create_table(struct cpufreq_policy *policy,
diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index f6dd1e761129..ad72922919ed 100644
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -358,14 +358,14 @@ static void intel_pstate_sysfs_expose_params(void)
 static int intel_pstate_min_pstate(void)
 {
         u64 value;
-        rdmsrl(0xCE, value);
+        rdmsrl(MSR_PLATFORM_INFO, value);
         return (value >> 40) & 0xFF;
 }
 
 static int intel_pstate_max_pstate(void)
 {
         u64 value;
-        rdmsrl(0xCE, value);
+        rdmsrl(MSR_PLATFORM_INFO, value);
         return (value >> 8) & 0xFF;
 }
 
@@ -373,7 +373,7 @@ static int intel_pstate_turbo_pstate(void)
 {
         u64 value;
         int nont, ret;
-        rdmsrl(0x1AD, value);
+        rdmsrl(MSR_NHM_TURBO_RATIO_LIMIT, value);
         nont = intel_pstate_max_pstate();
         ret = ((value) & 255);
         if (ret <= nont)
@@ -454,7 +454,7 @@ static inline void intel_pstate_calc_busy(struct cpudata *cpu,
                                         sample->idletime_us * 100,
                                         sample->duration_us);
         core_pct = div64_u64(sample->aperf * 100, sample->mperf);
-        sample->freq = cpu->pstate.turbo_pstate * core_pct * 1000;
+        sample->freq = cpu->pstate.max_pstate * core_pct * 1000;
 
         sample->core_pct_busy = div_s64((sample->pstate_pct_busy * core_pct),
                                         100);
@@ -752,6 +752,29 @@ static struct cpufreq_driver intel_pstate_driver = {
 
 static int __initdata no_load;
 
+static int intel_pstate_msrs_not_valid(void)
+{
+        /* Check that all the msr's we are using are valid. */
+        u64 aperf, mperf, tmp;
+
+        rdmsrl(MSR_IA32_APERF, aperf);
+        rdmsrl(MSR_IA32_MPERF, mperf);
+
+        if (!intel_pstate_min_pstate() ||
+                !intel_pstate_max_pstate() ||
+                !intel_pstate_turbo_pstate())
+                return -ENODEV;
+
+        rdmsrl(MSR_IA32_APERF, tmp);
+        if (!(tmp - aperf))
+                return -ENODEV;
+
+        rdmsrl(MSR_IA32_MPERF, tmp);
+        if (!(tmp - mperf))
+                return -ENODEV;
+
+        return 0;
+}
 static int __init intel_pstate_init(void)
 {
         int cpu, rc = 0;
@@ -764,6 +787,9 @@ static int __init intel_pstate_init(void)
         if (!id)
                 return -ENODEV;
 
+        if (intel_pstate_msrs_not_valid())
+                return -ENODEV;
+
         pr_info("Intel P-state driver initializing.\n");
 
         all_cpu_data = vmalloc(sizeof(void *) * num_possible_cpus());
diff --git a/drivers/crypto/caam/caamalg.c b/drivers/crypto/caam/caamalg.c
index b2a0a0726a54..cf268b14ae9a 100644
--- a/drivers/crypto/caam/caamalg.c
+++ b/drivers/crypto/caam/caamalg.c
@@ -1650,11 +1650,7 @@ struct caam_alg_template {
 };
 
 static struct caam_alg_template driver_algs[] = {
-        /*
-         * single-pass ipsec_esp descriptor
-         * authencesn(*,*) is also registered, although not present
-         * explicitly here.
-         */
+        /* single-pass ipsec_esp descriptor */
         {
                 .name = "authenc(hmac(md5),cbc(aes))",
                 .driver_name = "authenc-hmac-md5-cbc-aes-caam",
@@ -2217,9 +2213,7 @@ static int __init caam_algapi_init(void)
         for (i = 0; i < ARRAY_SIZE(driver_algs); i++) {
                 /* TODO: check if h/w supports alg */
                 struct caam_crypto_alg *t_alg;
-                bool done = false;
 
-authencesn:
                 t_alg = caam_alg_alloc(ctrldev, &driver_algs[i]);
                 if (IS_ERR(t_alg)) {
                         err = PTR_ERR(t_alg);
@@ -2233,25 +2227,8 @@ authencesn:
                         dev_warn(ctrldev, "%s alg registration failed\n",
                                 t_alg->crypto_alg.cra_driver_name);
                         kfree(t_alg);
-                } else {
+                } else
                         list_add_tail(&t_alg->entry, &priv->alg_list);
-                        if (driver_algs[i].type == CRYPTO_ALG_TYPE_AEAD &&
-                            !memcmp(driver_algs[i].name, "authenc", 7) &&
-                            !done) {
-                                char *name;
-
-                                name = driver_algs[i].name;
-                                memmove(name + 10, name + 7, strlen(name) - 7);
-                                memcpy(name + 7, "esn", 3);
-
-                                name = driver_algs[i].driver_name;
-                                memmove(name + 10, name + 7, strlen(name) - 7);
-                                memcpy(name + 7, "esn", 3);
-
-                                done = true;
-                                goto authencesn;
-                        }
-                }
         }
         if (!list_empty(&priv->alg_list))
                 dev_info(ctrldev, "%s algorithms registered in /proc/crypto\n",
diff --git a/drivers/crypto/caam/compat.h b/drivers/crypto/caam/compat.h
index cf15e7813801..762aeff626ac 100644
--- a/drivers/crypto/caam/compat.h
+++ b/drivers/crypto/caam/compat.h
@@ -23,7 +23,6 @@
 #include <linux/types.h>
 #include <linux/debugfs.h>
 #include <linux/circ_buf.h>
-#include <linux/string.h>
 #include <net/xfrm.h>
 
 #include <crypto/algapi.h>
diff --git a/drivers/crypto/talitos.c b/drivers/crypto/talitos.c
index 09b184adf31b..5b2b5e61e4f9 100644
--- a/drivers/crypto/talitos.c
+++ b/drivers/crypto/talitos.c
@@ -38,7 +38,6 @@
 #include <linux/spinlock.h>
 #include <linux/rtnetlink.h>
 #include <linux/slab.h>
-#include <linux/string.h>
 
 #include <crypto/algapi.h>
 #include <crypto/aes.h>
@@ -1974,11 +1973,7 @@ struct talitos_alg_template {
 };
 
 static struct talitos_alg_template driver_algs[] = {
-        /*
-         * AEAD algorithms. These use a single-pass ipsec_esp descriptor.
-         * authencesn(*,*) is also registered, although not present
-         * explicitly here.
-         */
+        /* AEAD algorithms.  These use a single-pass ipsec_esp descriptor */
         {       .type = CRYPTO_ALG_TYPE_AEAD,
                 .alg.crypto = {
                         .cra_name = "authenc(hmac(sha1),cbc(aes))",
@@ -2820,9 +2815,7 @@ static int talitos_probe(struct platform_device *ofdev)
                 if (hw_supports(dev, driver_algs[i].desc_hdr_template)) {
                         struct talitos_crypto_alg *t_alg;
                         char *name = NULL;
-                        bool authenc = false;
 
-authencesn:
                         t_alg = talitos_alg_alloc(dev, &driver_algs[i]);
                         if (IS_ERR(t_alg)) {
                                 err = PTR_ERR(t_alg);
@@ -2837,8 +2830,6 @@ authencesn:
                                 err = crypto_register_alg(
                                                 &t_alg->algt.alg.crypto);
                                 name = t_alg->algt.alg.crypto.cra_driver_name;
-                                authenc = authenc ? !authenc :
-                                          !(bool)memcmp(name, "authenc", 7);
                                 break;
                         case CRYPTO_ALG_TYPE_AHASH:
                                 err = crypto_register_ahash(
@@ -2851,25 +2842,8 @@ authencesn:
                                 dev_err(dev, "%s alg registration failed\n",
                                         name);
                                 kfree(t_alg);
-                        } else {
+                        } else
                                 list_add_tail(&t_alg->entry, &priv->alg_list);
-                                if (authenc) {
-                                        struct crypto_alg *alg =
-                                                &driver_algs[i].alg.crypto;
-
-                                        name = alg->cra_name;
-                                        memmove(name + 10, name + 7,
-                                                strlen(name) - 7);
-                                        memcpy(name + 7, "esn", 3);
-
-                                        name = alg->cra_driver_name;
-                                        memmove(name + 10, name + 7,
-                                                strlen(name) - 7);
-                                        memcpy(name + 7, "esn", 3);
-
-                                        goto authencesn;
-                                }
-                        }
                 }
         }
         if (!list_empty(&priv->alg_list))
diff --git a/drivers/dma/dw_dmac.c b/drivers/dma/dw_dmac.c
index c599558faeda..43a5329d4483 100644
--- a/drivers/dma/dw_dmac.c
+++ b/drivers/dma/dw_dmac.c
@@ -1001,6 +1001,13 @@ static inline void convert_burst(u32 *maxburst)
                 *maxburst = 0;
 }
 
+static inline void convert_slave_id(struct dw_dma_chan *dwc)
+{
+        struct dw_dma *dw = to_dw_dma(dwc->chan.device);
+
+        dwc->dma_sconfig.slave_id -= dw->request_line_base;
+}
+
 static int
 set_runtime_config(struct dma_chan *chan, struct dma_slave_config *sconfig)
 {
@@ -1015,6 +1022,7 @@ set_runtime_config(struct dma_chan *chan, struct dma_slave_config *sconfig)
 
         convert_burst(&dwc->dma_sconfig.src_maxburst);
         convert_burst(&dwc->dma_sconfig.dst_maxburst);
+        convert_slave_id(dwc);
 
         return 0;
 }
@@ -1276,9 +1284,9 @@ static struct dma_chan *dw_dma_xlate(struct of_phandle_args *dma_spec,
         if (dma_spec->args_count != 3)
                 return NULL;
 
-        fargs.req = be32_to_cpup(dma_spec->args+0);
-        fargs.src = be32_to_cpup(dma_spec->args+1);
-        fargs.dst = be32_to_cpup(dma_spec->args+2);
+        fargs.req = dma_spec->args[0];
+        fargs.src = dma_spec->args[1];
+        fargs.dst = dma_spec->args[2];
 
         if (WARN_ON(fargs.req >= DW_DMA_MAX_NR_REQUESTS ||
                     fargs.src >= dw->nr_masters ||
@@ -1628,6 +1636,7 @@ dw_dma_parse_dt(struct platform_device *pdev)
 
 static int dw_probe(struct platform_device *pdev)
 {
+        const struct platform_device_id *match;
         struct dw_dma_platform_data *pdata;
         struct resource         *io;
         struct dw_dma           *dw;
@@ -1711,6 +1720,11 @@ static int dw_probe(struct platform_device *pdev)
                 memcpy(dw->data_width, pdata->data_width, 4);
         }
 
+        /* Get the base request line if set */
+        match = platform_get_device_id(pdev);
+        if (match)
+                dw->request_line_base = (unsigned int)match->driver_data;
+
         /* Calculate all channel mask before DMA setup */
         dw->all_chan_mask = (1 << nr_channels) - 1;
 
@@ -1906,7 +1920,8 @@ MODULE_DEVICE_TABLE(of, dw_dma_id_table);
 #endif
 
 static const struct platform_device_id dw_dma_ids[] = {
-        { "INTL9C60", 0 },
+        /* Name,        Request Line Base */
+        { "INTL9C60",   (kernel_ulong_t)16 },
         { }
 };
 
diff --git a/drivers/dma/dw_dmac_regs.h b/drivers/dma/dw_dmac_regs.h
index cf0ce5c77d60..4d02c3669b75 100644
--- a/drivers/dma/dw_dmac_regs.h
+++ b/drivers/dma/dw_dmac_regs.h
@@ -247,6 +247,7 @@ struct dw_dma {
         /* hardware configuration */
         unsigned char           nr_masters;
         unsigned char           data_width[4];
+        unsigned int            request_line_base;
 
         struct dw_dma_chan      chan[0];
 };
diff --git a/drivers/firmware/Kconfig b/drivers/firmware/Kconfig
index 9b00072a020f..42c759a4d047 100644
--- a/drivers/firmware/Kconfig
+++ b/drivers/firmware/Kconfig
@@ -53,6 +53,24 @@ config EFI_VARS
           Subsequent efibootmgr releases may be found at:
           <http://linux.dell.com/efibootmgr>
 
+config EFI_VARS_PSTORE
+        bool "Register efivars backend for pstore"
+        depends on EFI_VARS && PSTORE
+        default y
+        help
+          Say Y here to enable use efivars as a backend to pstore. This
+          will allow writing console messages, crash dumps, or anything
+          else supported by pstore to EFI variables.
+
+config EFI_VARS_PSTORE_DEFAULT_DISABLE
+        bool "Disable using efivars as a pstore backend by default"
+        depends on EFI_VARS_PSTORE
+        default n
+        help
+          Saying Y here will disable the use of efivars as a storage
+          backend for pstore by default. This setting can be overridden
+          using the efivars module's pstore_disable parameter.
+
 config EFI_PCDP
         bool "Console device selection via EFI PCDP or HCDP table"
         depends on ACPI && EFI && IA64
diff --git a/drivers/firmware/efivars.c b/drivers/firmware/efivars.c
index fe62aa392239..7acafb80fd4c 100644
--- a/drivers/firmware/efivars.c
+++ b/drivers/firmware/efivars.c
@@ -103,6 +103,11 @@ MODULE_VERSION(EFIVARS_VERSION);
  */
 #define GUID_LEN 36
 
+static bool efivars_pstore_disable =
+        IS_ENABLED(CONFIG_EFI_VARS_PSTORE_DEFAULT_DISABLE);
+
+module_param_named(pstore_disable, efivars_pstore_disable, bool, 0644);
+
 /*
  * The maximum size of VariableName + Data = 1024
  * Therefore, it's reasonable to save that much
@@ -165,6 +170,7 @@ efivar_create_sysfs_entry(struct efivars *efivars,
 
 static void efivar_update_sysfs_entries(struct work_struct *);
 static DECLARE_WORK(efivar_work, efivar_update_sysfs_entries);
+static bool efivar_wq_enabled = true;
 
 /* Return the number of unicode characters in data */
 static unsigned long
@@ -1309,9 +1315,7 @@ static const struct inode_operations efivarfs_dir_inode_operations = {
         .create = efivarfs_create,
 };
 
-static struct pstore_info efi_pstore_info;
-
-#ifdef CONFIG_PSTORE
+#ifdef CONFIG_EFI_VARS_PSTORE
 
 static int efi_pstore_open(struct pstore_info *psi)
 {
@@ -1441,7 +1445,7 @@ static int efi_pstore_write(enum pstore_type_id type,
 
         spin_unlock_irqrestore(&efivars->lock, flags);
 
-        if (reason == KMSG_DUMP_OOPS)
+        if (reason == KMSG_DUMP_OOPS && efivar_wq_enabled)
                 schedule_work(&efivar_work);
 
         *id = part;
@@ -1514,38 +1518,6 @@ static int efi_pstore_erase(enum pstore_type_id type, u64 id, int count,
 
         return 0;
 }
-#else
-static int efi_pstore_open(struct pstore_info *psi)
-{
-        return 0;
-}
-
-static int efi_pstore_close(struct pstore_info *psi)
-{
-        return 0;
-}
-
-static ssize_t efi_pstore_read(u64 *id, enum pstore_type_id *type, int *count,
-                               struct timespec *timespec,
-                               char **buf, struct pstore_info *psi)
-{
-        return -1;
-}
-
-static int efi_pstore_write(enum pstore_type_id type,
-                enum kmsg_dump_reason reason, u64 *id,
-                unsigned int part, int count, size_t size,
-                struct pstore_info *psi)
-{
-        return 0;
-}
-
-static int efi_pstore_erase(enum pstore_type_id type, u64 id, int count,
-                            struct timespec time, struct pstore_info *psi)
-{
-        return 0;
-}
-#endif
 
 static struct pstore_info efi_pstore_info = {
         .owner          = THIS_MODULE,
@@ -1557,6 +1529,24 @@ static struct pstore_info efi_pstore_info = {
         .erase          = efi_pstore_erase,
 };
 
+static void efivar_pstore_register(struct efivars *efivars)
+{
+        efivars->efi_pstore_info = efi_pstore_info;
+        efivars->efi_pstore_info.buf = kmalloc(4096, GFP_KERNEL);
+        if (efivars->efi_pstore_info.buf) {
+                efivars->efi_pstore_info.bufsize = 1024;
+                efivars->efi_pstore_info.data = efivars;
+                spin_lock_init(&efivars->efi_pstore_info.buf_lock);
+                pstore_register(&efivars->efi_pstore_info);
+        }
+}
+#else
+static void efivar_pstore_register(struct efivars *efivars)
+{
+        return;
+}
+#endif
+
 static ssize_t efivar_create(struct file *filp, struct kobject *kobj,
                              struct bin_attribute *bin_attr,
                              char *buf, loff_t pos, size_t count)
@@ -1716,6 +1706,31 @@ static bool variable_is_present(efi_char16_t *variable_name, efi_guid_t *vendor)
         return found;
 }
 
+/*
+ * Returns the size of variable_name, in bytes, including the
+ * terminating NULL character, or variable_name_size if no NULL
+ * character is found among the first variable_name_size bytes.
+ */
+static unsigned long var_name_strnsize(efi_char16_t *variable_name,
+                                       unsigned long variable_name_size)
+{
+        unsigned long len;
+        efi_char16_t c;
+
+        /*
+         * The variable name is, by definition, a NULL-terminated
+         * string, so make absolutely sure that variable_name_size is
+         * the value we expect it to be. If not, return the real size.
+         */
+        for (len = 2; len <= variable_name_size; len += sizeof(c)) {
+                c = variable_name[(len / sizeof(c)) - 1];
+                if (!c)
+                        break;
+        }
+
+        return min(len, variable_name_size);
+}
+
 static void efivar_update_sysfs_entries(struct work_struct *work)
 {
         struct efivars *efivars = &__efivars;
@@ -1756,10 +1771,13 @@ static void efivar_update_sysfs_entries(struct work_struct *work)
                 if (!found) {
                         kfree(variable_name);
                         break;
-                } else
+                } else {
+                        variable_name_size = var_name_strnsize(variable_name,
+                                                               variable_name_size);
                         efivar_create_sysfs_entry(efivars,
                                                   variable_name_size,
                                                   variable_name, &vendor);
+                }
         }
 }
 
@@ -1958,6 +1976,35 @@ void unregister_efivars(struct efivars *efivars)
 }
 EXPORT_SYMBOL_GPL(unregister_efivars);
 
+/*
+ * Print a warning when duplicate EFI variables are encountered and
+ * disable the sysfs workqueue since the firmware is buggy.
+ */
+static void dup_variable_bug(efi_char16_t *s16, efi_guid_t *vendor_guid,
+                             unsigned long len16)
+{
+        size_t i, len8 = len16 / sizeof(efi_char16_t);
+        char *s8;
+
+        /*
+         * Disable the workqueue since the algorithm it uses for
+         * detecting new variables won't work with this buggy
+         * implementation of GetNextVariableName().
+         */
+        efivar_wq_enabled = false;
+
+        s8 = kzalloc(len8, GFP_KERNEL);
+        if (!s8)
+                return;
+
+        for (i = 0; i < len8; i++)
+                s8[i] = s16[i];
+
+        printk(KERN_WARNING "efivars: duplicate variable: %s-%pUl\n",
+               s8, vendor_guid);
+        kfree(s8);
+}
+
 int register_efivars(struct efivars *efivars,
                      const struct efivar_operations *ops,
                      struct kobject *parent_kobj)
@@ -2006,6 +2053,24 @@ int register_efivars(struct efivars *efivars,
                                                 &vendor_guid);
                 switch (status) {
                 case EFI_SUCCESS:
+                        variable_name_size = var_name_strnsize(variable_name,
+                                                               variable_name_size);
+
+                        /*
+                         * Some firmware implementations return the
+                         * same variable name on multiple calls to
+                         * get_next_variable(). Terminate the loop
+                         * immediately as there is no guarantee that
+                         * we'll ever see a different variable name,
+                         * and may end up looping here forever.
+                         */
+                        if (variable_is_present(variable_name, &vendor_guid)) {
+                                dup_variable_bug(variable_name, &vendor_guid,
+                                                 variable_name_size);
+                                status = EFI_NOT_FOUND;
+                                break;
+                        }
+
                         efivar_create_sysfs_entry(efivars,
                                                   variable_name_size,
                                                   variable_name,
@@ -2025,15 +2090,8 @@ int register_efivars(struct efivars *efivars,
         if (error)
                 unregister_efivars(efivars);
 
-        efivars->efi_pstore_info = efi_pstore_info;
-
-        efivars->efi_pstore_info.buf = kmalloc(4096, GFP_KERNEL);
-        if (efivars->efi_pstore_info.buf) {
-                efivars->efi_pstore_info.bufsize = 1024;
-                efivars->efi_pstore_info.data = efivars;
-                spin_lock_init(&efivars->efi_pstore_info.buf_lock);
-                pstore_register(&efivars->efi_pstore_info);
-        }
+        if (!efivars_pstore_disable)
+                efivar_pstore_register(efivars);
 
         register_filesystem(&efivarfs_type);
 
diff --git a/drivers/gpio/gpiolib-of.c b/drivers/gpio/gpiolib-of.c
index a71a54a3e3f7..5150df6cba08 100644
--- a/drivers/gpio/gpiolib-of.c
+++ b/drivers/gpio/gpiolib-of.c
@@ -193,7 +193,7 @@ static void of_gpiochip_add_pin_range(struct gpio_chip *chip)
         if (!np)
                 return;
 
-        do {
+        for (;; index++) {
                 ret = of_parse_phandle_with_args(np, "gpio-ranges",
                                 "#gpio-range-cells", index, &pinspec);
                 if (ret)
@@ -222,8 +222,7 @@ static void of_gpiochip_add_pin_range(struct gpio_chip *chip)
 
                 if (ret)
                         break;
-
-        } while (index++);
+        }
 }
 
 #else
diff --git a/drivers/gpu/drm/exynos/exynos_drm_fimd.c b/drivers/gpu/drm/exynos/exynos_drm_fimd.c
index 36493ce71f9a..98cc14725ba9 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_fimd.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_fimd.c
@@ -38,11 +38,12 @@
 /* position control register for hardware window 0, 2 ~ 4.*/
 #define VIDOSD_A(win)           (VIDOSD_BASE + 0x00 + (win) * 16)
 #define VIDOSD_B(win)           (VIDOSD_BASE + 0x04 + (win) * 16)
-/* size control register for hardware window 0. */
-#define VIDOSD_C_SIZE_W0        (VIDOSD_BASE + 0x08)
-/* alpha control register for hardware window 1 ~ 4. */
-#define VIDOSD_C(win)           (VIDOSD_BASE + 0x18 + (win) * 16)
-/* size control register for hardware window 1 ~ 4. */
+/*
+ * size control register for hardware windows 0 and alpha control register
+ * for hardware windows 1 ~ 4
+ */
+#define VIDOSD_C(win)           (VIDOSD_BASE + 0x08 + (win) * 16)
+/* size control register for hardware windows 1 ~ 2. */
 #define VIDOSD_D(win)           (VIDOSD_BASE + 0x0C + (win) * 16)
 
 #define VIDWx_BUF_START(win, buf)       (VIDW_BUF_START(buf) + (win) * 8)
@@ -50,9 +51,9 @@
 #define VIDWx_BUF_SIZE(win, buf)        (VIDW_BUF_SIZE(buf) + (win) * 4)
 
 /* color key control register for hardware window 1 ~ 4. */
-#define WKEYCON0_BASE(x)                ((WKEYCON0 + 0x140) + (x * 8))
+#define WKEYCON0_BASE(x)                ((WKEYCON0 + 0x140) + ((x - 1) * 8))
 /* color key value register for hardware window 1 ~ 4. */
-#define WKEYCON1_BASE(x)                ((WKEYCON1 + 0x140) + (x * 8))
+#define WKEYCON1_BASE(x)                ((WKEYCON1 + 0x140) + ((x - 1) * 8))
 
 /* FIMD has totally five hardware windows. */
 #define WINDOWS_NR      5
@@ -109,9 +110,9 @@ struct fimd_context {
 
 #ifdef CONFIG_OF
 static const struct of_device_id fimd_driver_dt_match[] = {
-        { .compatible = "samsung,exynos4-fimd",
+        { .compatible = "samsung,exynos4210-fimd",
           .data = &exynos4_fimd_driver_data },
-        { .compatible = "samsung,exynos5-fimd",
+        { .compatible = "samsung,exynos5250-fimd",
           .data = &exynos5_fimd_driver_data },
         {},
 };
@@ -581,7 +582,7 @@ static void fimd_win_commit(struct device *dev, int zpos)
         if (win != 3 && win != 4) {
                 u32 offset = VIDOSD_D(win);
                 if (win == 0)
-                        offset = VIDOSD_C_SIZE_W0;
+                        offset = VIDOSD_C(win);
                 val = win_data->ovl_width * win_data->ovl_height;
                 writel(val, ctx->regs + offset);
 
diff --git a/drivers/gpu/drm/exynos/exynos_drm_g2d.c b/drivers/gpu/drm/exynos/exynos_drm_g2d.c
index 3b0da0378acf..47a493c8a71f 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_g2d.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_g2d.c
@@ -48,8 +48,14 @@
 
 /* registers for base address */
 #define G2D_SRC_BASE_ADDR               0x0304
+#define G2D_SRC_COLOR_MODE              0x030C
+#define G2D_SRC_LEFT_TOP                0x0310
+#define G2D_SRC_RIGHT_BOTTOM            0x0314
 #define G2D_SRC_PLANE2_BASE_ADDR        0x0318
 #define G2D_DST_BASE_ADDR               0x0404
+#define G2D_DST_COLOR_MODE              0x040C
+#define G2D_DST_LEFT_TOP                0x0410
+#define G2D_DST_RIGHT_BOTTOM            0x0414
 #define G2D_DST_PLANE2_BASE_ADDR        0x0418
 #define G2D_PAT_BASE_ADDR               0x0500
 #define G2D_MSK_BASE_ADDR               0x0520
@@ -82,7 +88,7 @@
 #define G2D_DMA_LIST_DONE_COUNT_OFFSET  17
 
 /* G2D_DMA_HOLD_CMD */
-#define G2D_USET_HOLD                   (1 << 2)
+#define G2D_USER_HOLD                   (1 << 2)
 #define G2D_LIST_HOLD                   (1 << 1)
 #define G2D_BITBLT_HOLD                 (1 << 0)
 
@@ -91,13 +97,27 @@
 #define G2D_START_NHOLT                 (1 << 1)
 #define G2D_START_BITBLT                (1 << 0)
 
+/* buffer color format */
+#define G2D_FMT_XRGB8888                0
+#define G2D_FMT_ARGB8888                1
+#define G2D_FMT_RGB565                  2
+#define G2D_FMT_XRGB1555                3
+#define G2D_FMT_ARGB1555                4
+#define G2D_FMT_XRGB4444                5
+#define G2D_FMT_ARGB4444                6
+#define G2D_FMT_PACKED_RGB888           7
+#define G2D_FMT_A8                      11
+#define G2D_FMT_L8                      12
+
+/* buffer valid length */
+#define G2D_LEN_MIN                     1
+#define G2D_LEN_MAX                     8000
+
 #define G2D_CMDLIST_SIZE                (PAGE_SIZE / 4)
 #define G2D_CMDLIST_NUM                 64
 #define G2D_CMDLIST_POOL_SIZE           (G2D_CMDLIST_SIZE * G2D_CMDLIST_NUM)
 #define G2D_CMDLIST_DATA_NUM            (G2D_CMDLIST_SIZE / sizeof(u32) - 2)
 
-#define MAX_BUF_ADDR_NR                 6
-
 /* maximum buffer pool size of userptr is 64MB as default */
 #define MAX_POOL                (64 * 1024 * 1024)
 
@@ -106,6 +126,17 @@ enum {
         BUF_TYPE_USERPTR,
 };
 
+enum g2d_reg_type {
+        REG_TYPE_NONE = -1,
+        REG_TYPE_SRC,
+        REG_TYPE_SRC_PLANE2,
+        REG_TYPE_DST,
+        REG_TYPE_DST_PLANE2,
+        REG_TYPE_PAT,
+        REG_TYPE_MSK,
+        MAX_REG_TYPE_NR
+};
+
 /* cmdlist data structure */
 struct g2d_cmdlist {
         u32             head;
@@ -113,6 +144,42 @@ struct g2d_cmdlist {
         u32             last;   /* last data offset */
 };
 
+/*
+ * A structure of buffer description
+ *
+ * @format: color format
+ * @left_x: the x coordinates of left top corner
+ * @top_y: the y coordinates of left top corner
+ * @right_x: the x coordinates of right bottom corner
+ * @bottom_y: the y coordinates of right bottom corner
+ *
+ */
+struct g2d_buf_desc {
+        unsigned int    format;
+        unsigned int    left_x;
+        unsigned int    top_y;
+        unsigned int    right_x;
+        unsigned int    bottom_y;
+};
+
+/*
+ * A structure of buffer information
+ *
+ * @map_nr: manages the number of mapped buffers
+ * @reg_types: stores regitster type in the order of requested command
+ * @handles: stores buffer handle in its reg_type position
+ * @types: stores buffer type in its reg_type position
+ * @descs: stores buffer description in its reg_type position
+ *
+ */
+struct g2d_buf_info {
+        unsigned int            map_nr;
+        enum g2d_reg_type       reg_types[MAX_REG_TYPE_NR];
+        unsigned long           handles[MAX_REG_TYPE_NR];
+        unsigned int            types[MAX_REG_TYPE_NR];
+        struct g2d_buf_desc     descs[MAX_REG_TYPE_NR];
+};
+
 struct drm_exynos_pending_g2d_event {
         struct drm_pending_event        base;
         struct drm_exynos_g2d_event     event;
@@ -131,14 +198,11 @@ struct g2d_cmdlist_userptr {
         bool                    in_pool;
         bool                    out_of_list;
 };
-
 struct g2d_cmdlist_node {
         struct list_head        list;
         struct g2d_cmdlist      *cmdlist;
-        unsigned int            map_nr;
-        unsigned long           handles[MAX_BUF_ADDR_NR];
-        unsigned int            obj_type[MAX_BUF_ADDR_NR];
         dma_addr_t              dma_addr;
+        struct g2d_buf_info     buf_info;
 
         struct drm_exynos_pending_g2d_event     *event;
 };
@@ -188,6 +252,7 @@ static int g2d_init_cmdlist(struct g2d_data *g2d)
         struct exynos_drm_subdrv *subdrv = &g2d->subdrv;
         int nr;
         int ret;
+        struct g2d_buf_info *buf_info;
 
         init_dma_attrs(&g2d->cmdlist_dma_attrs);
         dma_set_attr(DMA_ATTR_WRITE_COMBINE, &g2d->cmdlist_dma_attrs);
@@ -209,11 +274,17 @@ static int g2d_init_cmdlist(struct g2d_data *g2d)
         }
 
         for (nr = 0; nr < G2D_CMDLIST_NUM; nr++) {
+                unsigned int i;
+
                 node[nr].cmdlist =
                         g2d->cmdlist_pool_virt + nr * G2D_CMDLIST_SIZE;
                 node[nr].dma_addr =
                         g2d->cmdlist_pool + nr * G2D_CMDLIST_SIZE;
 
+                buf_info = &node[nr].buf_info;
+                for (i = 0; i < MAX_REG_TYPE_NR; i++)
+                        buf_info->reg_types[i] = REG_TYPE_NONE;
+
                 list_add_tail(&node[nr].list, &g2d->free_cmdlist);
         }
 
@@ -450,7 +521,7 @@ static dma_addr_t *g2d_userptr_get_dma_addr(struct drm_device *drm_dev,
                                                 DMA_BIDIRECTIONAL);
         if (ret < 0) {
                 DRM_ERROR("failed to map sgt with dma region.\n");
-                goto err_free_sgt;
+                goto err_sg_free_table;
         }
 
         g2d_userptr->dma_addr = sgt->sgl[0].dma_address;
@@ -467,8 +538,10 @@ static dma_addr_t *g2d_userptr_get_dma_addr(struct drm_device *drm_dev,
 
         return &g2d_userptr->dma_addr;
 
-err_free_sgt:
+err_sg_free_table:
         sg_free_table(sgt);
+
+err_free_sgt:
         kfree(sgt);
         sgt = NULL;
 
@@ -506,36 +579,172 @@ static void g2d_userptr_free_all(struct drm_device *drm_dev,
         g2d->current_pool = 0;
 }
 
+static enum g2d_reg_type g2d_get_reg_type(int reg_offset)
+{
+        enum g2d_reg_type reg_type;
+
+        switch (reg_offset) {
+        case G2D_SRC_BASE_ADDR:
+        case G2D_SRC_COLOR_MODE:
+        case G2D_SRC_LEFT_TOP:
+        case G2D_SRC_RIGHT_BOTTOM:
+                reg_type = REG_TYPE_SRC;
+                break;
+        case G2D_SRC_PLANE2_BASE_ADDR:
+                reg_type = REG_TYPE_SRC_PLANE2;
+                break;
+        case G2D_DST_BASE_ADDR:
+        case G2D_DST_COLOR_MODE:
+        case G2D_DST_LEFT_TOP:
+        case G2D_DST_RIGHT_BOTTOM:
+                reg_type = REG_TYPE_DST;
+                break;
+        case G2D_DST_PLANE2_BASE_ADDR:
+                reg_type = REG_TYPE_DST_PLANE2;
+                break;
+        case G2D_PAT_BASE_ADDR:
+                reg_type = REG_TYPE_PAT;
+                break;
+        case G2D_MSK_BASE_ADDR:
+                reg_type = REG_TYPE_MSK;
+                break;
+        default:
+                reg_type = REG_TYPE_NONE;
+                DRM_ERROR("Unknown register offset![%d]\n", reg_offset);
+                break;
+        };
+
+        return reg_type;
+}
+
+static unsigned long g2d_get_buf_bpp(unsigned int format)
+{
+        unsigned long bpp;
+
+        switch (format) {
+        case G2D_FMT_XRGB8888:
+        case G2D_FMT_ARGB8888:
+                bpp = 4;
+                break;
+        case G2D_FMT_RGB565:
+        case G2D_FMT_XRGB1555:
+        case G2D_FMT_ARGB1555:
+        case G2D_FMT_XRGB4444:
+        case G2D_FMT_ARGB4444:
+                bpp = 2;
+                break;
+        case G2D_FMT_PACKED_RGB888:
+                bpp = 3;
+                break;
+        default:
+                bpp = 1;
+                break;
+        }
+
+        return bpp;
+}
+
+static bool g2d_check_buf_desc_is_valid(struct g2d_buf_desc *buf_desc,
+                                                enum g2d_reg_type reg_type,
+                                                unsigned long size)
+{
+        unsigned int width, height;
+        unsigned long area;
+
+        /*
+         * check source and destination buffers only.
+         * so the others are always valid.
+         */
+        if (reg_type != REG_TYPE_SRC && reg_type != REG_TYPE_DST)
+                return true;
+
+        width = buf_desc->right_x - buf_desc->left_x;
+        if (width < G2D_LEN_MIN || width > G2D_LEN_MAX) {
+                DRM_ERROR("width[%u] is out of range!\n", width);
+                return false;
+        }
+
+        height = buf_desc->bottom_y - buf_desc->top_y;
+        if (height < G2D_LEN_MIN || height > G2D_LEN_MAX) {
+                DRM_ERROR("height[%u] is out of range!\n", height);
+                return false;
+        }
+
+        area = (unsigned long)width * (unsigned long)height *
+                                        g2d_get_buf_bpp(buf_desc->format);
+        if (area > size) {
+                DRM_ERROR("area[%lu] is out of range[%lu]!\n", area, size);
+                return false;
+        }
+
+        return true;
+}
+
 static int g2d_map_cmdlist_gem(struct g2d_data *g2d,
                                 struct g2d_cmdlist_node *node,
                                 struct drm_device *drm_dev,
                                 struct drm_file *file)
 {
         struct g2d_cmdlist *cmdlist = node->cmdlist;
+        struct g2d_buf_info *buf_info = &node->buf_info;
         int offset;
+        int ret;
         int i;
 
-        for (i = 0; i < node->map_nr; i++) {
+        for (i = 0; i < buf_info->map_nr; i++) {
+                struct g2d_buf_desc *buf_desc;
+                enum g2d_reg_type reg_type;
+                int reg_pos;
                 unsigned long handle;
                 dma_addr_t *addr;
 
-                offset = cmdlist->last - (i * 2 + 1);
-                handle = cmdlist->data[offset];
+                reg_pos = cmdlist->last - 2 * (i + 1);
+
+                offset = cmdlist->data[reg_pos];
+                handle = cmdlist->data[reg_pos + 1];
+
+                reg_type = g2d_get_reg_type(offset);
+                if (reg_type == REG_TYPE_NONE) {
+                        ret = -EFAULT;
+                        goto err;
+                }
+
+                buf_desc = &buf_info->descs[reg_type];
+
+                if (buf_info->types[reg_type] == BUF_TYPE_GEM) {
+                        unsigned long size;
+
+                        size = exynos_drm_gem_get_size(drm_dev, handle, file);
+                        if (!size) {
+                                ret = -EFAULT;
+                                goto err;
+                        }
+
+                        if (!g2d_check_buf_desc_is_valid(buf_desc, reg_type,
+                                                                        size)) {
+                                ret = -EFAULT;
+                                goto err;
+                        }
 
-                if (node->obj_type[i] == BUF_TYPE_GEM) {
                         addr = exynos_drm_gem_get_dma_addr(drm_dev, handle,
                                                                 file);
                         if (IS_ERR(addr)) {
-                                node->map_nr = i;
-                                return -EFAULT;
+                                ret = -EFAULT;
+                                goto err;
                         }
                 } else {
                         struct drm_exynos_g2d_userptr g2d_userptr;
 
                         if (copy_from_user(&g2d_userptr, (void __user *)handle,
                                 sizeof(struct drm_exynos_g2d_userptr))) {
-                                node->map_nr = i;
-                                return -EFAULT;
+                                ret = -EFAULT;
+                                goto err;
+                        }
+
+                        if (!g2d_check_buf_desc_is_valid(buf_desc, reg_type,
+                                                        g2d_userptr.size)) {
+                                ret = -EFAULT;
+                                goto err;
                         }
 
                         addr = g2d_userptr_get_dma_addr(drm_dev,
@@ -544,16 +753,21 @@ static int g2d_map_cmdlist_gem(struct g2d_data *g2d,
                                                         file,
                                                         &handle);
                         if (IS_ERR(addr)) {
-                                node->map_nr = i;
-                                return -EFAULT;
+                                ret = -EFAULT;
+                                goto err;
                         }
                 }
 
-                cmdlist->data[offset] = *addr;
-                node->handles[i] = handle;
+                cmdlist->data[reg_pos + 1] = *addr;
+                buf_info->reg_types[i] = reg_type;
+                buf_info->handles[reg_type] = handle;
         }
 
         return 0;
+
+err:
+        buf_info->map_nr = i;
+        return ret;
 }
 
 static void g2d_unmap_cmdlist_gem(struct g2d_data *g2d,
@@ -561,22 +775,33 @@ static void g2d_unmap_cmdlist_gem(struct g2d_data *g2d,
                                   struct drm_file *filp)
 {
         struct exynos_drm_subdrv *subdrv = &g2d->subdrv;
+        struct g2d_buf_info *buf_info = &node->buf_info;
         int i;
 
-        for (i = 0; i < node->map_nr; i++) {
-                unsigned long handle = node->handles[i];
+        for (i = 0; i < buf_info->map_nr; i++) {
+                struct g2d_buf_desc *buf_desc;
+                enum g2d_reg_type reg_type;
+                unsigned long handle;
+
+                reg_type = buf_info->reg_types[i];
+
+                buf_desc = &buf_info->descs[reg_type];
+                handle = buf_info->handles[reg_type];
 
-                if (node->obj_type[i] == BUF_TYPE_GEM)
+                if (buf_info->types[reg_type] == BUF_TYPE_GEM)
                         exynos_drm_gem_put_dma_addr(subdrv->drm_dev, handle,
                                                         filp);
                 else
                         g2d_userptr_put_dma_addr(subdrv->drm_dev, handle,
                                                         false);
 
-                node->handles[i] = 0;
+                buf_info->reg_types[i] = REG_TYPE_NONE;
+                buf_info->handles[reg_type] = 0;
+                buf_info->types[reg_type] = 0;
+                memset(buf_desc, 0x00, sizeof(*buf_desc));
         }
 
-        node->map_nr = 0;
+        buf_info->map_nr = 0;
 }
 
 static void g2d_dma_start(struct g2d_data *g2d,
@@ -589,10 +814,6 @@ static void g2d_dma_start(struct g2d_data *g2d,
         pm_runtime_get_sync(g2d->dev);
         clk_enable(g2d->gate_clk);
 
-        /* interrupt enable */
-        writel_relaxed(G2D_INTEN_ACF | G2D_INTEN_UCF | G2D_INTEN_GCF,
-                        g2d->regs + G2D_INTEN);
-
         writel_relaxed(node->dma_addr, g2d->regs + G2D_DMA_SFR_BASE_ADDR);
         writel_relaxed(G2D_DMA_START, g2d->regs + G2D_DMA_COMMAND);
 }
@@ -643,7 +864,6 @@ static void g2d_runqueue_worker(struct work_struct *work)
         struct g2d_data *g2d = container_of(work, struct g2d_data,
                                             runqueue_work);
 
-
         mutex_lock(&g2d->runqueue_mutex);
         clk_disable(g2d->gate_clk);
         pm_runtime_put_sync(g2d->dev);
@@ -724,20 +944,14 @@ static int g2d_check_reg_offset(struct device *dev,
         int i;
 
         for (i = 0; i < nr; i++) {
-                index = cmdlist->last - 2 * (i + 1);
+                struct g2d_buf_info *buf_info = &node->buf_info;
+                struct g2d_buf_desc *buf_desc;
+                enum g2d_reg_type reg_type;
+                unsigned long value;
 
-                if (for_addr) {
-                        /* check userptr buffer type. */
-                        reg_offset = (cmdlist->data[index] &
-                                        ~0x7fffffff) >> 31;
-                        if (reg_offset) {
-                                node->obj_type[i] = BUF_TYPE_USERPTR;
-                                cmdlist->data[index] &= ~G2D_BUF_USERPTR;
-                        }
-                }
+                index = cmdlist->last - 2 * (i + 1);
 
                 reg_offset = cmdlist->data[index] & ~0xfffff000;
-
                 if (reg_offset < G2D_VALID_START || reg_offset > G2D_VALID_END)
                         goto err;
                 if (reg_offset % 4)
@@ -753,8 +967,60 @@ static int g2d_check_reg_offset(struct device *dev,
                         if (!for_addr)
                                 goto err;
 
-                        if (node->obj_type[i] != BUF_TYPE_USERPTR)
-                                node->obj_type[i] = BUF_TYPE_GEM;
+                        reg_type = g2d_get_reg_type(reg_offset);
+                        if (reg_type == REG_TYPE_NONE)
+                                goto err;
+
+                        /* check userptr buffer type. */
+                        if ((cmdlist->data[index] & ~0x7fffffff) >> 31) {
+                                buf_info->types[reg_type] = BUF_TYPE_USERPTR;
+                                cmdlist->data[index] &= ~G2D_BUF_USERPTR;
+                        } else
+                                buf_info->types[reg_type] = BUF_TYPE_GEM;
+                        break;
+                case G2D_SRC_COLOR_MODE:
+                case G2D_DST_COLOR_MODE:
+                        if (for_addr)
+                                goto err;
+
+                        reg_type = g2d_get_reg_type(reg_offset);
+                        if (reg_type == REG_TYPE_NONE)
+                                goto err;
+
+                        buf_desc = &buf_info->descs[reg_type];
+                        value = cmdlist->data[index + 1];
+
+                        buf_desc->format = value & 0xf;
+                        break;
+                case G2D_SRC_LEFT_TOP:
+                case G2D_DST_LEFT_TOP:
+                        if (for_addr)
+                                goto err;
+
+                        reg_type = g2d_get_reg_type(reg_offset);
+                        if (reg_type == REG_TYPE_NONE)
+                                goto err;
+
+                        buf_desc = &buf_info->descs[reg_type];
+                        value = cmdlist->data[index + 1];
+
+                        buf_desc->left_x = value & 0x1fff;
+                        buf_desc->top_y = (value & 0x1fff0000) >> 16;
+                        break;
+                case G2D_SRC_RIGHT_BOTTOM:
+                case G2D_DST_RIGHT_BOTTOM:
+                        if (for_addr)
+                                goto err;
+
+                        reg_type = g2d_get_reg_type(reg_offset);
+                        if (reg_type == REG_TYPE_NONE)
+                                goto err;
+
+                        buf_desc = &buf_info->descs[reg_type];
+                        value = cmdlist->data[index + 1];
+
+                        buf_desc->right_x = value & 0x1fff;
+                        buf_desc->bottom_y = (value & 0x1fff0000) >> 16;
                         break;
                 default:
                         if (for_addr)
@@ -860,9 +1126,23 @@ int exynos_g2d_set_cmdlist_ioctl(struct drm_device *drm_dev, void *data,
         cmdlist->data[cmdlist->last++] = G2D_SRC_BASE_ADDR;
         cmdlist->data[cmdlist->last++] = 0;
 
+        /*
+         * 'LIST_HOLD' command should be set to the DMA_HOLD_CMD_REG
+         * and GCF bit should be set to INTEN register if user wants
+         * G2D interrupt event once current command list execution is
+         * finished.
+         * Otherwise only ACF bit should be set to INTEN register so
+         * that one interrupt is occured after all command lists
+         * have been completed.
+         */
         if (node->event) {
+                cmdlist->data[cmdlist->last++] = G2D_INTEN;
+                cmdlist->data[cmdlist->last++] = G2D_INTEN_ACF | G2D_INTEN_GCF;
                 cmdlist->data[cmdlist->last++] = G2D_DMA_HOLD_CMD;
                 cmdlist->data[cmdlist->last++] = G2D_LIST_HOLD;
+        } else {
+                cmdlist->data[cmdlist->last++] = G2D_INTEN;
+                cmdlist->data[cmdlist->last++] = G2D_INTEN_ACF;
         }
 
         /* Check size of cmdlist: last 2 is about G2D_BITBLT_START */
@@ -887,7 +1167,7 @@ int exynos_g2d_set_cmdlist_ioctl(struct drm_device *drm_dev, void *data,
         if (ret < 0)
                 goto err_free_event;
 
-        node->map_nr = req->cmd_buf_nr;
+        node->buf_info.map_nr = req->cmd_buf_nr;
         if (req->cmd_buf_nr) {
                 struct drm_exynos_g2d_cmd *cmd_buf;
 
diff --git a/drivers/gpu/drm/exynos/exynos_drm_gem.c b/drivers/gpu/drm/exynos/exynos_drm_gem.c
index 67e17ce112b6..0e6fe000578c 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_gem.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_gem.c
@@ -164,6 +164,27 @@ out:
         exynos_gem_obj = NULL;
 }
 
+unsigned long exynos_drm_gem_get_size(struct drm_device *dev,
+                                                unsigned int gem_handle,
+                                                struct drm_file *file_priv)
+{
+        struct exynos_drm_gem_obj *exynos_gem_obj;
+        struct drm_gem_object *obj;
+
+        obj = drm_gem_object_lookup(dev, file_priv, gem_handle);
+        if (!obj) {
+                DRM_ERROR("failed to lookup gem object.\n");
+                return 0;
+        }
+
+        exynos_gem_obj = to_exynos_gem_obj(obj);
+
+        drm_gem_object_unreference_unlocked(obj);
+
+        return exynos_gem_obj->buffer->size;
+}
+
+
 struct exynos_drm_gem_obj *exynos_drm_gem_init(struct drm_device *dev,
                                                       unsigned long size)
 {
diff --git a/drivers/gpu/drm/exynos/exynos_drm_gem.h b/drivers/gpu/drm/exynos/exynos_drm_gem.h
index 35ebac47dc2b..468766bee450 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_gem.h
+++ b/drivers/gpu/drm/exynos/exynos_drm_gem.h
@@ -130,6 +130,11 @@ int exynos_drm_gem_userptr_ioctl(struct drm_device *dev, void *data,
 int exynos_drm_gem_get_ioctl(struct drm_device *dev, void *data,
                                       struct drm_file *file_priv);
 
+/* get buffer size to gem handle. */
+unsigned long exynos_drm_gem_get_size(struct drm_device *dev,
+                                                unsigned int gem_handle,
+                                                struct drm_file *file_priv);
+
 /* initialize gem object. */
 int exynos_drm_gem_init_object(struct drm_gem_object *obj);
 
diff --git a/drivers/gpu/drm/exynos/exynos_drm_vidi.c b/drivers/gpu/drm/exynos/exynos_drm_vidi.c
index 13ccbd4bcfaa..9504b0cd825a 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_vidi.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_vidi.c
@@ -117,13 +117,12 @@ static struct edid *vidi_get_edid(struct device *dev,
         }
 
         edid_len = (1 + ctx->raw_edid->extensions) * EDID_LENGTH;
-        edid = kzalloc(edid_len, GFP_KERNEL);
+        edid = kmemdup(ctx->raw_edid, edid_len, GFP_KERNEL);
         if (!edid) {
                 DRM_DEBUG_KMS("failed to allocate edid\n");
                 return ERR_PTR(-ENOMEM);
         }
 
-        memcpy(edid, ctx->raw_edid, edid_len);
         return edid;
 }
 
@@ -563,12 +562,11 @@ int vidi_connection_ioctl(struct drm_device *drm_dev, void *data,
                         return -EINVAL;
                 }
                 edid_len = (1 + raw_edid->extensions) * EDID_LENGTH;
-                ctx->raw_edid = kzalloc(edid_len, GFP_KERNEL);
+                ctx->raw_edid = kmemdup(raw_edid, edid_len, GFP_KERNEL);
                 if (!ctx->raw_edid) {
                         DRM_DEBUG_KMS("failed to allocate raw_edid.\n");
                         return -ENOMEM;
                 }
-                memcpy(ctx->raw_edid, raw_edid, edid_len);
         } else {
                 /*
                  * with connection = 0, free raw_edid
diff --git a/drivers/gpu/drm/exynos/exynos_mixer.c b/drivers/gpu/drm/exynos/exynos_mixer.c
index e919aba29b3d..2f4f72f07047 100644
--- a/drivers/gpu/drm/exynos/exynos_mixer.c
+++ b/drivers/gpu/drm/exynos/exynos_mixer.c
@@ -818,7 +818,7 @@ static void mixer_win_disable(void *ctx, int win)
         mixer_ctx->win_data[win].enabled = false;
 }
 
-int mixer_check_timing(void *ctx, struct fb_videomode *timing)
+static int mixer_check_timing(void *ctx, struct fb_videomode *timing)
 {
         struct mixer_context *mixer_ctx = ctx;
         u32 w, h;
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 0a8eceb75902..e9b57893db2b 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -125,6 +125,11 @@ MODULE_PARM_DESC(preliminary_hw_support,
                 "Enable Haswell and ValleyView Support. "
                 "(default: false)");
 
+int i915_disable_power_well __read_mostly = 0;
+module_param_named(disable_power_well, i915_disable_power_well, int, 0600);
+MODULE_PARM_DESC(disable_power_well,
+                 "Disable the power well when possible (default: false)");
+
 static struct drm_driver driver;
 extern int intel_agp_enabled;
 
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index e95337c97459..01769e2a9953 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -1398,6 +1398,7 @@ extern int i915_enable_fbc __read_mostly;
 extern bool i915_enable_hangcheck __read_mostly;
 extern int i915_enable_ppgtt __read_mostly;
 extern unsigned int i915_preliminary_hw_support __read_mostly;
+extern int i915_disable_power_well __read_mostly;
 
 extern int i915_suspend(struct drm_device *dev, pm_message_t state);
 extern int i915_resume(struct drm_device *dev);
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 287b42c9d1a8..b20d50192fcc 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -5771,6 +5771,11 @@ static int haswell_crtc_mode_set(struct drm_crtc *crtc,
                 num_connectors++;
         }
 
+        if (is_cpu_edp)
+                intel_crtc->cpu_transcoder = TRANSCODER_EDP;
+        else
+                intel_crtc->cpu_transcoder = pipe;
+
         /* We are not sure yet this won't happen. */
         WARN(!HAS_PCH_LPT(dev), "Unexpected PCH type %d\n",
              INTEL_PCH_TYPE(dev));
@@ -5837,11 +5842,6 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc,
         int pipe = intel_crtc->pipe;
         int ret;
 
-        if (IS_HASWELL(dev) && intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP))
-                intel_crtc->cpu_transcoder = TRANSCODER_EDP;
-        else
-                intel_crtc->cpu_transcoder = pipe;
-
         drm_vblank_pre_modeset(dev, pipe);
 
         ret = dev_priv->display.crtc_mode_set(crtc, mode, adjusted_mode,
diff --git a/drivers/gpu/drm/i915/intel_panel.c b/drivers/gpu/drm/i915/intel_panel.c
index a3730e0289e5..bee8cb6108a7 100644
--- a/drivers/gpu/drm/i915/intel_panel.c
+++ b/drivers/gpu/drm/i915/intel_panel.c
@@ -321,9 +321,6 @@ void intel_panel_enable_backlight(struct drm_device *dev,
         if (dev_priv->backlight_level == 0)
                 dev_priv->backlight_level = intel_panel_get_max_backlight(dev);
 
-        dev_priv->backlight_enabled = true;
-        intel_panel_actually_set_backlight(dev, dev_priv->backlight_level);
-
         if (INTEL_INFO(dev)->gen >= 4) {
                 uint32_t reg, tmp;
 
@@ -359,12 +356,12 @@ void intel_panel_enable_backlight(struct drm_device *dev,
         }
 
 set_level:
-        /* Check the current backlight level and try to set again if it's zero.
-         * On some machines, BLC_PWM_CPU_CTL is cleared to zero automatically
-         * when BLC_PWM_CPU_CTL2 and BLC_PWM_PCH_CTL1 are written.
+        /* Call below after setting BLC_PWM_CPU_CTL2 and BLC_PWM_PCH_CTL1.
+         * BLC_PWM_CPU_CTL may be cleared to zero automatically when these
+         * registers are set.
          */
-        if (!intel_panel_get_backlight(dev))
-                intel_panel_actually_set_backlight(dev, dev_priv->backlight_level);
+        dev_priv->backlight_enabled = true;
+        intel_panel_actually_set_backlight(dev, dev_priv->backlight_level);
 }
 
 static void intel_panel_init_backlight(struct drm_device *dev)
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index a1794c6df1bf..adca00783e61 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -4079,6 +4079,9 @@ void intel_set_power_well(struct drm_device *dev, bool enable)
         if (!IS_HASWELL(dev))
                 return;
 
+        if (!i915_disable_power_well && !enable)
+                return;
+
         tmp = I915_READ(HSW_PWR_WELL_DRIVER);
         is_enabled = tmp & HSW_PWR_WELL_STATE;
         enable_requested = tmp & HSW_PWR_WELL_ENABLE;
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index 92e47e5c9564..c4388776f4e4 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -590,6 +590,9 @@
 #define USB_VENDOR_ID_MONTEREY          0x0566
 #define USB_DEVICE_ID_GENIUS_KB29E      0x3004
 
+#define USB_VENDOR_ID_MSI               0x1770
+#define USB_DEVICE_ID_MSI_GX680R_LED_PANEL      0xff00
+
 #define USB_VENDOR_ID_NATIONAL_SEMICONDUCTOR 0x0400
 #define USB_DEVICE_ID_N_S_HARMONY       0xc359
 
@@ -684,6 +687,9 @@
 #define USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3001         0x3001
 #define USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3008         0x3008
 
+#define USB_VENDOR_ID_REALTEK           0x0bda
+#define USB_DEVICE_ID_REALTEK_READER    0x0152
+
 #define USB_VENDOR_ID_ROCCAT            0x1e7d
 #define USB_DEVICE_ID_ROCCAT_ARVO       0x30d4
 #define USB_DEVICE_ID_ROCCAT_ISKU       0x319c
diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
index 7a1ebb867cf4..82e9211b3ca9 100644
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -621,6 +621,7 @@ static void mt_process_mt_event(struct hid_device *hid, struct hid_field *field,
 {
         struct mt_device *td = hid_get_drvdata(hid);
         __s32 quirks = td->mtclass.quirks;
+        struct input_dev *input = field->hidinput->input;
 
         if (hid->claimed & HID_CLAIMED_INPUT) {
                 switch (usage->hid) {
@@ -670,13 +671,16 @@ static void mt_process_mt_event(struct hid_device *hid, struct hid_field *field,
                         break;
 
                 default:
+                        if (usage->type)
+                                input_event(input, usage->type, usage->code,
+                                                value);
                         return;
                 }
 
                 if (usage->usage_index + 1 == field->report_count) {
                         /* we only take into account the last report. */
                         if (usage->hid == td->last_slot_field)
-                                mt_complete_slot(td, field->hidinput->input);
+                                mt_complete_slot(td, input);
 
                         if (field->index == td->last_field_index
                                 && td->num_received >= td->num_expected)
diff --git a/drivers/hid/usbhid/hid-quirks.c b/drivers/hid/usbhid/hid-quirks.c
index e0e6abf1cd3b..19b8360f2330 100644
--- a/drivers/hid/usbhid/hid-quirks.c
+++ b/drivers/hid/usbhid/hid-quirks.c
@@ -73,6 +73,7 @@ static const struct hid_blacklist {
         { USB_VENDOR_ID_FORMOSA, USB_DEVICE_ID_FORMOSA_IR_RECEIVER, HID_QUIRK_NO_INIT_REPORTS },
         { USB_VENDOR_ID_FREESCALE, USB_DEVICE_ID_FREESCALE_MX28, HID_QUIRK_NOGET },
         { USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS, HID_QUIRK_NOGET },
+        { USB_VENDOR_ID_MSI, USB_DEVICE_ID_MSI_GX680R_LED_PANEL, HID_QUIRK_NO_INIT_REPORTS },
         { USB_VENDOR_ID_NOVATEK, USB_DEVICE_ID_NOVATEK_MOUSE, HID_QUIRK_NO_INIT_REPORTS },
         { USB_VENDOR_ID_PIXART, USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN, HID_QUIRK_NO_INIT_REPORTS },
         { USB_VENDOR_ID_PIXART, USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN1, HID_QUIRK_NO_INIT_REPORTS },
@@ -80,6 +81,7 @@ static const struct hid_blacklist {
         { USB_VENDOR_ID_PRODIGE, USB_DEVICE_ID_PRODIGE_CORDLESS, HID_QUIRK_NOGET },
         { USB_VENDOR_ID_QUANTA, USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3001, HID_QUIRK_NOGET },
         { USB_VENDOR_ID_QUANTA, USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3008, HID_QUIRK_NOGET },
+        { USB_VENDOR_ID_REALTEK, USB_DEVICE_ID_REALTEK_READER, HID_QUIRK_NO_INIT_REPORTS },
         { USB_VENDOR_ID_SENNHEISER, USB_DEVICE_ID_SENNHEISER_BTD500USB, HID_QUIRK_NOGET },
         { USB_VENDOR_ID_SIGMATEL, USB_DEVICE_ID_SIGMATEL_STMP3780, HID_QUIRK_NOGET },
         { USB_VENDOR_ID_SUN, USB_DEVICE_ID_RARITAN_KVM_DONGLE, HID_QUIRK_NOGET },
diff --git a/drivers/infiniband/hw/cxgb4/qp.c b/drivers/infiniband/hw/cxgb4/qp.c
index 17ba4f8bc12d..70b1808a08f4 100644
--- a/drivers/infiniband/hw/cxgb4/qp.c
+++ b/drivers/infiniband/hw/cxgb4/qp.c
@@ -186,8 +186,10 @@ static int create_qp(struct c4iw_rdev *rdev, struct t4_wq *wq,
         wq->rq.queue = dma_alloc_coherent(&(rdev->lldi.pdev->dev),
                                           wq->rq.memsize, &(wq->rq.dma_addr),
                                           GFP_KERNEL);
-        if (!wq->rq.queue)
+        if (!wq->rq.queue) {
+                ret = -ENOMEM;
                 goto free_sq;
+        }
         PDBG("%s sq base va 0x%p pa 0x%llx rq base va 0x%p pa 0x%llx\n",
                 __func__, wq->sq.queue,
                 (unsigned long long)virt_to_phys(wq->sq.queue),
diff --git a/drivers/infiniband/hw/ipath/ipath_verbs.c b/drivers/infiniband/hw/ipath/ipath_verbs.c
index 439c35d4a669..ea93870266eb 100644
--- a/drivers/infiniband/hw/ipath/ipath_verbs.c
+++ b/drivers/infiniband/hw/ipath/ipath_verbs.c
@@ -620,7 +620,7 @@ void ipath_ib_rcv(struct ipath_ibdev *dev, void *rhdr, void *data,
                 goto bail;
         }
 
-        opcode = be32_to_cpu(ohdr->bth[0]) >> 24;
+        opcode = (be32_to_cpu(ohdr->bth[0]) >> 24) & 0x7f;
         dev->opstats[opcode].n_bytes += tlen;
         dev->opstats[opcode].n_packets++;
 
diff --git a/drivers/infiniband/hw/qib/Kconfig b/drivers/infiniband/hw/qib/Kconfig
index 8349f9c5064c..1e603a375069 100644
--- a/drivers/infiniband/hw/qib/Kconfig
+++ b/drivers/infiniband/hw/qib/Kconfig
@@ -1,7 +1,7 @@
 config INFINIBAND_QIB
-        tristate "QLogic PCIe HCA support"
+        tristate "Intel PCIe HCA support"
         depends on 64BIT
         ---help---
-        This is a low-level driver for QLogic PCIe QLE InfiniBand host
-        channel adapters.  This driver does not support the QLogic
+        This is a low-level driver for Intel PCIe QLE InfiniBand host
+        channel adapters.  This driver does not support the Intel
         HyperTransport card (model QHT7140).
diff --git a/drivers/infiniband/hw/qib/qib_driver.c b/drivers/infiniband/hw/qib/qib_driver.c
index 5423edcab51f..216092477dfc 100644
--- a/drivers/infiniband/hw/qib/qib_driver.c
+++ b/drivers/infiniband/hw/qib/qib_driver.c
@@ -1,4 +1,5 @@
 /*
+ * Copyright (c) 2013 Intel Corporation. All rights reserved.
  * Copyright (c) 2006, 2007, 2008, 2009 QLogic Corporation. All rights reserved.
  * Copyright (c) 2003, 2004, 2005, 2006 PathScale, Inc. All rights reserved.
  *
@@ -63,8 +64,8 @@ MODULE_PARM_DESC(compat_ddr_negotiate,
                  "Attempt pre-IBTA 1.2 DDR speed negotiation");
 
 MODULE_LICENSE("Dual BSD/GPL");
-MODULE_AUTHOR("QLogic <support@qlogic.com>");
-MODULE_DESCRIPTION("QLogic IB driver");
+MODULE_AUTHOR("Intel <ibsupport@intel.com>");
+MODULE_DESCRIPTION("Intel IB driver");
 MODULE_VERSION(QIB_DRIVER_VERSION);
 
 /*
diff --git a/drivers/infiniband/hw/qib/qib_iba6120.c b/drivers/infiniband/hw/qib/qib_iba6120.c
index a099ac171e22..0232ae56b1fa 100644
--- a/drivers/infiniband/hw/qib/qib_iba6120.c
+++ b/drivers/infiniband/hw/qib/qib_iba6120.c
@@ -1,4 +1,5 @@
 /*
+ * Copyright (c) 2013 Intel Corporation. All rights reserved.
  * Copyright (c) 2006, 2007, 2008, 2009, 2010 QLogic Corporation.
  * All rights reserved.
  * Copyright (c) 2003, 2004, 2005, 2006 PathScale, Inc. All rights reserved.
@@ -51,7 +52,7 @@ static u32 qib_6120_iblink_state(u64);
 
 /*
  * This file contains all the chip-specific register information and
- * access functions for the QLogic QLogic_IB PCI-Express chip.
+ * access functions for the Intel Intel_IB PCI-Express chip.
  *
  */
 
diff --git a/drivers/infiniband/hw/qib/qib_init.c b/drivers/infiniband/hw/qib/qib_init.c
index 50e33aa0b4e3..173f805790da 100644
--- a/drivers/infiniband/hw/qib/qib_init.c
+++ b/drivers/infiniband/hw/qib/qib_init.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2012 Intel Corporation.  All rights reserved.
+ * Copyright (c) 2012, 2013 Intel Corporation.  All rights reserved.
  * Copyright (c) 2006 - 2012 QLogic Corporation. All rights reserved.
  * Copyright (c) 2003, 2004, 2005, 2006 PathScale, Inc. All rights reserved.
  *
@@ -1138,7 +1138,7 @@ void qib_disable_after_error(struct qib_devdata *dd)
 static void qib_remove_one(struct pci_dev *);
 static int qib_init_one(struct pci_dev *, const struct pci_device_id *);
 
-#define DRIVER_LOAD_MSG "QLogic " QIB_DRV_NAME " loaded: "
+#define DRIVER_LOAD_MSG "Intel " QIB_DRV_NAME " loaded: "
 #define PFX QIB_DRV_NAME ": "
 
 static DEFINE_PCI_DEVICE_TABLE(qib_pci_tbl) = {
@@ -1355,7 +1355,7 @@ static int qib_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
                 dd = qib_init_iba6120_funcs(pdev, ent);
 #else
                 qib_early_err(&pdev->dev,
-                        "QLogic PCIE device 0x%x cannot work if CONFIG_PCI_MSI is not enabled\n",
+                        "Intel PCIE device 0x%x cannot work if CONFIG_PCI_MSI is not enabled\n",
                         ent->device);
                 dd = ERR_PTR(-ENODEV);
 #endif
@@ -1371,7 +1371,7 @@ static int qib_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 
         default:
                 qib_early_err(&pdev->dev,
-                        "Failing on unknown QLogic deviceid 0x%x\n",
+                        "Failing on unknown Intel deviceid 0x%x\n",
                         ent->device);
                 ret = -ENODEV;
         }
diff --git a/drivers/infiniband/hw/qib/qib_sd7220.c b/drivers/infiniband/hw/qib/qib_sd7220.c
index 50a8a0d4fe67..08a6c6d39e56 100644
--- a/drivers/infiniband/hw/qib/qib_sd7220.c
+++ b/drivers/infiniband/hw/qib/qib_sd7220.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2012 Intel Corporation. All rights reserved.
+ * Copyright (c) 2013 Intel Corporation. All rights reserved.
  * Copyright (c) 2006 - 2012 QLogic Corporation. All rights reserved.
  * Copyright (c) 2003, 2004, 2005, 2006 PathScale, Inc. All rights reserved.
  *
@@ -44,7 +44,7 @@
 #include "qib.h"
 #include "qib_7220.h"
 
-#define SD7220_FW_NAME "qlogic/sd7220.fw"
+#define SD7220_FW_NAME "intel/sd7220.fw"
 MODULE_FIRMWARE(SD7220_FW_NAME);
 
 /*
diff --git a/drivers/infiniband/hw/qib/qib_verbs.c b/drivers/infiniband/hw/qib/qib_verbs.c
index ba51a4715a1d..7c0ab16a2fe2 100644
--- a/drivers/infiniband/hw/qib/qib_verbs.c
+++ b/drivers/infiniband/hw/qib/qib_verbs.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2012 Intel Corporation.  All rights reserved.
+ * Copyright (c) 2012, 2013 Intel Corporation.  All rights reserved.
  * Copyright (c) 2006 - 2012 QLogic Corporation. All rights reserved.
  * Copyright (c) 2005, 2006 PathScale, Inc. All rights reserved.
  *
@@ -2224,7 +2224,7 @@ int qib_register_ib_device(struct qib_devdata *dd)
         ibdev->dma_ops = &qib_dma_mapping_ops;
 
         snprintf(ibdev->node_desc, sizeof(ibdev->node_desc),
-                 "QLogic Infiniband HCA %s", init_utsname()->nodename);
+                 "Intel Infiniband HCA %s", init_utsname()->nodename);
 
         ret = ib_register_device(ibdev, qib_create_port_files);
         if (ret)
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_cm.c b/drivers/infiniband/ulp/ipoib/ipoib_cm.c
index 67b0c1d23678..1ef880de3a41 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_cm.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_cm.c
@@ -758,9 +758,13 @@ void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_
                 if (++priv->tx_outstanding == ipoib_sendq_size) {
                         ipoib_dbg(priv, "TX ring 0x%x full, stopping kernel net queue\n",
                                   tx->qp->qp_num);
-                        if (ib_req_notify_cq(priv->send_cq, IB_CQ_NEXT_COMP))
-                                ipoib_warn(priv, "request notify on send CQ failed\n");
                         netif_stop_queue(dev);
+                        rc = ib_req_notify_cq(priv->send_cq,
+                                IB_CQ_NEXT_COMP | IB_CQ_REPORT_MISSED_EVENTS);
+                        if (rc < 0)
+                                ipoib_warn(priv, "request notify on send CQ failed\n");
+                        else if (rc)
+                                ipoib_send_comp_handler(priv->send_cq, dev);
                 }
         }
 }
diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig
index 5c514d0711d1..c332fb98480d 100644
--- a/drivers/iommu/Kconfig
+++ b/drivers/iommu/Kconfig
@@ -130,7 +130,7 @@ config IRQ_REMAP
 # OMAP IOMMU support
 config OMAP_IOMMU
         bool "OMAP IOMMU Support"
-        depends on ARCH_OMAP
+        depends on ARCH_OMAP2PLUS
         select IOMMU_API
 
 config OMAP_IOVMM
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index 98f555dafb55..b287ca33833d 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -2466,18 +2466,16 @@ static int device_change_notifier(struct notifier_block *nb,
 
                 /* allocate a protection domain if a device is added */
                 dma_domain = find_protection_domain(devid);
-                if (dma_domain)
-                        goto out;
-                dma_domain = dma_ops_domain_alloc();
-                if (!dma_domain)
-                        goto out;
-                dma_domain->target_dev = devid;
-
-                spin_lock_irqsave(&iommu_pd_list_lock, flags);
-                list_add_tail(&dma_domain->list, &iommu_pd_list);
-                spin_unlock_irqrestore(&iommu_pd_list_lock, flags);
-
-                dev_data = get_dev_data(dev);
+                if (!dma_domain) {
+                        dma_domain = dma_ops_domain_alloc();
+                        if (!dma_domain)
+                                goto out;
+                        dma_domain->target_dev = devid;
+
+                        spin_lock_irqsave(&iommu_pd_list_lock, flags);
+                        list_add_tail(&dma_domain->list, &iommu_pd_list);
+                        spin_unlock_irqrestore(&iommu_pd_list_lock, flags);
+                }
 
                 dev->archdata.dma_ops = &amd_iommu_dma_ops;
 
diff --git a/drivers/iommu/amd_iommu_init.c b/drivers/iommu/amd_iommu_init.c
index b6ecddb63cd0..e3c2d74b7684 100644
--- a/drivers/iommu/amd_iommu_init.c
+++ b/drivers/iommu/amd_iommu_init.c
@@ -980,7 +980,7 @@ static void __init free_iommu_all(void)
  *     BIOS should disable L2B micellaneous clock gating by setting
  *     L2_L2B_CK_GATE_CONTROL[CKGateL2BMiscDisable](D0F2xF4_x90[2]) = 1b
  */
-static void __init amd_iommu_erratum_746_workaround(struct amd_iommu *iommu)
+static void amd_iommu_erratum_746_workaround(struct amd_iommu *iommu)
 {
         u32 value;
 
diff --git a/drivers/iommu/irq_remapping.c b/drivers/iommu/irq_remapping.c
index d56f8c17c5fe..7c11ff368d07 100644
--- a/drivers/iommu/irq_remapping.c
+++ b/drivers/iommu/irq_remapping.c
@@ -2,7 +2,6 @@
 #include <linux/cpumask.h>
 #include <linux/kernel.h>
 #include <linux/string.h>
-#include <linux/cpumask.h>
 #include <linux/errno.h>
 #include <linux/msi.h>
 #include <linux/irq.h>
diff --git a/drivers/media/i2c/m5mols/m5mols_core.c b/drivers/media/i2c/m5mols/m5mols_core.c
index d4e7567b367c..0b899cb6cda1 100644
--- a/drivers/media/i2c/m5mols/m5mols_core.c
+++ b/drivers/media/i2c/m5mols/m5mols_core.c
@@ -724,7 +724,7 @@ static int m5mols_s_stream(struct v4l2_subdev *sd, int enable)
         if (enable) {
                 if (is_code(code, M5MOLS_RESTYPE_MONITOR))
                         ret = m5mols_start_monitor(info);
-                if (is_code(code, M5MOLS_RESTYPE_CAPTURE))
+                else if (is_code(code, M5MOLS_RESTYPE_CAPTURE))
                         ret = m5mols_start_capture(info);
                 else
                         ret = -EINVAL;
diff --git a/drivers/media/pci/bt8xx/bttv-driver.c b/drivers/media/pci/bt8xx/bttv-driver.c
index ccd18e4ee789..54579e4c740b 100644
--- a/drivers/media/pci/bt8xx/bttv-driver.c
+++ b/drivers/media/pci/bt8xx/bttv-driver.c
@@ -250,17 +250,19 @@ static u8 SRAM_Table[][60] =
    vdelay       start of active video in 2 * field lines relative to
                 trailing edge of /VRESET pulse (VDELAY register).
    sheight      height of active video in 2 * field lines.
+   extraheight  Added to sheight for cropcap.bounds.height only
    videostart0  ITU-R frame line number of the line corresponding
                 to vdelay in the first field. */
 #define CROPCAP(minhdelayx1, hdelayx1, swidth, totalwidth, sqwidth,      \
-                vdelay, sheight, videostart0)                            \
+                vdelay, sheight, extraheight, videostart0)               \
         .cropcap.bounds.left = minhdelayx1,                              \
         /* * 2 because vertically we count field lines times two, */     \
         /* e.g. 23 * 2 to 23 * 2 + 576 in PAL-BGHI defrect. */           \
         .cropcap.bounds.top = (videostart0) * 2 - (vdelay) + MIN_VDELAY, \
         /* 4 is a safety margin at the end of the line. */               \
         .cropcap.bounds.width = (totalwidth) - (minhdelayx1) - 4,        \
-        .cropcap.bounds.height = (sheight) + (vdelay) - MIN_VDELAY,      \
+        .cropcap.bounds.height = (sheight) + (extraheight) + (vdelay) -  \
+                                 MIN_VDELAY,                             \
         .cropcap.defrect.left = hdelayx1,                                \
         .cropcap.defrect.top = (videostart0) * 2,                        \
         .cropcap.defrect.width = swidth,                                 \
@@ -301,9 +303,10 @@ const struct bttv_tvnorm bttv_tvnorms[] = {
                         /* totalwidth */ 1135,
                         /* sqwidth */ 944,
                         /* vdelay */ 0x20,
-                /* bt878 (and bt848?) can capture another
-                   line below active video. */
-                        /* sheight */ (576 + 2) + 0x20 - 2,
+                        /* sheight */ 576,
+                        /* bt878 (and bt848?) can capture another
+                           line below active video. */
+                        /* extraheight */ 2,
                         /* videostart0 */ 23)
         },{
                 .v4l2_id        = V4L2_STD_NTSC_M | V4L2_STD_NTSC_M_KR,
@@ -330,6 +333,7 @@ const struct bttv_tvnorm bttv_tvnorms[] = {
                         /* sqwidth */ 780,
                         /* vdelay */ 0x1a,
                         /* sheight */ 480,
+                        /* extraheight */ 0,
                         /* videostart0 */ 23)
         },{
                 .v4l2_id        = V4L2_STD_SECAM,
@@ -355,6 +359,7 @@ const struct bttv_tvnorm bttv_tvnorms[] = {
                         /* sqwidth */ 944,
                         /* vdelay */ 0x20,
                         /* sheight */ 576,
+                        /* extraheight */ 0,
                         /* videostart0 */ 23)
         },{
                 .v4l2_id        = V4L2_STD_PAL_Nc,
@@ -380,6 +385,7 @@ const struct bttv_tvnorm bttv_tvnorms[] = {
                         /* sqwidth */ 780,
                         /* vdelay */ 0x1a,
                         /* sheight */ 576,
+                        /* extraheight */ 0,
                         /* videostart0 */ 23)
         },{
                 .v4l2_id        = V4L2_STD_PAL_M,
@@ -405,6 +411,7 @@ const struct bttv_tvnorm bttv_tvnorms[] = {
                         /* sqwidth */ 780,
                         /* vdelay */ 0x1a,
                         /* sheight */ 480,
+                        /* extraheight */ 0,
                         /* videostart0 */ 23)
         },{
                 .v4l2_id        = V4L2_STD_PAL_N,
@@ -430,6 +437,7 @@ const struct bttv_tvnorm bttv_tvnorms[] = {
                         /* sqwidth */ 944,
                         /* vdelay */ 0x20,
                         /* sheight */ 576,
+                        /* extraheight */ 0,
                         /* videostart0 */ 23)
         },{
                 .v4l2_id        = V4L2_STD_NTSC_M_JP,
@@ -455,6 +463,7 @@ const struct bttv_tvnorm bttv_tvnorms[] = {
                         /* sqwidth */ 780,
                         /* vdelay */ 0x16,
                         /* sheight */ 480,
+                        /* extraheight */ 0,
                         /* videostart0 */ 23)
         },{
                 /* that one hopefully works with the strange timing
@@ -484,6 +493,7 @@ const struct bttv_tvnorm bttv_tvnorms[] = {
                         /* sqwidth */ 944,
                         /* vdelay */ 0x1a,
                         /* sheight */ 480,
+                        /* extraheight */ 0,
                         /* videostart0 */ 23)
         }
 };
diff --git a/drivers/media/platform/exynos-gsc/gsc-core.c b/drivers/media/platform/exynos-gsc/gsc-core.c
index 82d9f6ac12f3..33b5ffc8d66d 100644
--- a/drivers/media/platform/exynos-gsc/gsc-core.c
+++ b/drivers/media/platform/exynos-gsc/gsc-core.c
@@ -1054,16 +1054,18 @@ static int gsc_m2m_suspend(struct gsc_dev *gsc)
 
 static int gsc_m2m_resume(struct gsc_dev *gsc)
 {
+        struct gsc_ctx *ctx;
         unsigned long flags;
 
         spin_lock_irqsave(&gsc->slock, flags);
         /* Clear for full H/W setup in first run after resume */
+        ctx = gsc->m2m.ctx;
         gsc->m2m.ctx = NULL;
         spin_unlock_irqrestore(&gsc->slock, flags);
 
         if (test_and_clear_bit(ST_M2M_SUSPENDED, &gsc->state))
-                gsc_m2m_job_finish(gsc->m2m.ctx,
-                                    VB2_BUF_STATE_ERROR);
+                gsc_m2m_job_finish(ctx, VB2_BUF_STATE_ERROR);
+
         return 0;
 }
 
@@ -1204,7 +1206,7 @@ static int gsc_resume(struct device *dev)
         /* Do not resume if the device was idle before system suspend */
         spin_lock_irqsave(&gsc->slock, flags);
         if (!test_and_clear_bit(ST_SUSPEND, &gsc->state) ||
-            !gsc_m2m_active(gsc)) {
+            !gsc_m2m_opened(gsc)) {
                 spin_unlock_irqrestore(&gsc->slock, flags);
                 return 0;
         }
diff --git a/drivers/media/platform/s5p-fimc/fimc-core.c b/drivers/media/platform/s5p-fimc/fimc-core.c
index e3916bde45cf..0f513dd19f86 100644
--- a/drivers/media/platform/s5p-fimc/fimc-core.c
+++ b/drivers/media/platform/s5p-fimc/fimc-core.c
@@ -850,16 +850,18 @@ static int fimc_m2m_suspend(struct fimc_dev *fimc)
 
 static int fimc_m2m_resume(struct fimc_dev *fimc)
 {
+        struct fimc_ctx *ctx;
         unsigned long flags;
 
         spin_lock_irqsave(&fimc->slock, flags);
         /* Clear for full H/W setup in first run after resume */
+        ctx = fimc->m2m.ctx;
         fimc->m2m.ctx = NULL;
         spin_unlock_irqrestore(&fimc->slock, flags);
 
         if (test_and_clear_bit(ST_M2M_SUSPENDED, &fimc->state))
-                fimc_m2m_job_finish(fimc->m2m.ctx,
-                                    VB2_BUF_STATE_ERROR);
+                fimc_m2m_job_finish(ctx, VB2_BUF_STATE_ERROR);
+
         return 0;
 }
 
diff --git a/drivers/media/platform/s5p-fimc/fimc-lite-reg.c b/drivers/media/platform/s5p-fimc/fimc-lite-reg.c
index f0af0754a7b4..ac9663ce2a49 100644
--- a/drivers/media/platform/s5p-fimc/fimc-lite-reg.c
+++ b/drivers/media/platform/s5p-fimc/fimc-lite-reg.c
@@ -128,10 +128,10 @@ static const u32 src_pixfmt_map[8][3] = {
 void flite_hw_set_source_format(struct fimc_lite *dev, struct flite_frame *f)
 {
         enum v4l2_mbus_pixelcode pixelcode = dev->fmt->mbus_code;
-        unsigned int i = ARRAY_SIZE(src_pixfmt_map);
+        int i = ARRAY_SIZE(src_pixfmt_map);
         u32 cfg;
 
-        while (i-- >= 0) {
+        while (--i >= 0) {
                 if (src_pixfmt_map[i][0] == pixelcode)
                         break;
         }
@@ -224,9 +224,9 @@ static void flite_hw_set_out_order(struct fimc_lite *dev, struct flite_frame *f)
                 { V4L2_MBUS_FMT_VYUY8_2X8, FLITE_REG_CIODMAFMT_CRYCBY },
         };
         u32 cfg = readl(dev->regs + FLITE_REG_CIODMAFMT);
-        unsigned int i = ARRAY_SIZE(pixcode);
+        int i = ARRAY_SIZE(pixcode);
 
-        while (i-- >= 0)
+        while (--i >= 0)
                 if (pixcode[i][0] == dev->fmt->mbus_code)
                         break;
         cfg &= ~FLITE_REG_CIODMAFMT_YCBCR_ORDER_MASK;
diff --git a/drivers/media/platform/s5p-fimc/fimc-lite.c b/drivers/media/platform/s5p-fimc/fimc-lite.c
index bfc4206935c8..bbc35de7db27 100644
--- a/drivers/media/platform/s5p-fimc/fimc-lite.c
+++ b/drivers/media/platform/s5p-fimc/fimc-lite.c
@@ -1408,6 +1408,7 @@ static const struct v4l2_ctrl_config fimc_lite_ctrl = {
         .id     = V4L2_CTRL_CLASS_USER | 0x1001,
         .type   = V4L2_CTRL_TYPE_BOOLEAN,
         .name   = "Test Pattern 640x480",
+        .step   = 1,
 };
 
 static int fimc_lite_create_capture_subdev(struct fimc_lite *fimc)
diff --git a/drivers/media/platform/s5p-fimc/fimc-mdevice.c b/drivers/media/platform/s5p-fimc/fimc-mdevice.c
index a17fcb2d5d41..cd38d708ab58 100644
--- a/drivers/media/platform/s5p-fimc/fimc-mdevice.c
+++ b/drivers/media/platform/s5p-fimc/fimc-mdevice.c
@@ -827,7 +827,7 @@ static int fimc_md_link_notify(struct media_pad *source,
         struct fimc_pipeline *pipeline;
         struct v4l2_subdev *sd;
         struct mutex *lock;
-        int ret = 0;
+        int i, ret = 0;
         int ref_count;
 
         if (media_entity_type(sink->entity) != MEDIA_ENT_T_V4L2_SUBDEV)
@@ -854,29 +854,28 @@ static int fimc_md_link_notify(struct media_pad *source,
                 return 0;
         }
 
+        mutex_lock(lock);
+        ref_count = fimc ? fimc->vid_cap.refcnt : fimc_lite->ref_count;
+
         if (!(flags & MEDIA_LNK_FL_ENABLED)) {
-                int i;
-                mutex_lock(lock);
-                ret = __fimc_pipeline_close(pipeline);
+                if (ref_count > 0) {
+                        ret = __fimc_pipeline_close(pipeline);
+                        if (!ret && fimc)
+                                fimc_ctrls_delete(fimc->vid_cap.ctx);
+                }
                 for (i = 0; i < IDX_MAX; i++)
                         pipeline->subdevs[i] = NULL;
-                if (fimc)
-                        fimc_ctrls_delete(fimc->vid_cap.ctx);
-                mutex_unlock(lock);
-                return ret;
+        } else if (ref_count > 0) {
+                /*
+                 * Link activation. Enable power of pipeline elements only if
+                 * the pipeline is already in use, i.e. its video node is open.
+                 * Recreate the controls destroyed during the link deactivation.
+                 */
+                ret = __fimc_pipeline_open(pipeline,
+                                           source->entity, true);
+                if (!ret && fimc)
+                        ret = fimc_capture_ctrls_create(fimc);
         }
-        /*
-         * Link activation. Enable power of pipeline elements only if the
-         * pipeline is already in use, i.e. its video node is opened.
-         * Recreate the controls destroyed during the link deactivation.
-         */
-        mutex_lock(lock);
-
-        ref_count = fimc ? fimc->vid_cap.refcnt : fimc_lite->ref_count;
-        if (ref_count > 0)
-                ret = __fimc_pipeline_open(pipeline, source->entity, true);
-        if (!ret && fimc)
-                ret = fimc_capture_ctrls_create(fimc);
 
         mutex_unlock(lock);
         return ret ? -EPIPE : ret;
diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc.c b/drivers/media/platform/s5p-mfc/s5p_mfc.c
index e84703c314ce..1cb6d57987c6 100644
--- a/drivers/media/platform/s5p-mfc/s5p_mfc.c
+++ b/drivers/media/platform/s5p-mfc/s5p_mfc.c
@@ -276,7 +276,7 @@ static void s5p_mfc_handle_frame_new(struct s5p_mfc_ctx *ctx, unsigned int err)
         unsigned int frame_type;
 
         dspl_y_addr = s5p_mfc_hw_call(dev->mfc_ops, get_dspl_y_adr, dev);
-        frame_type = s5p_mfc_hw_call(dev->mfc_ops, get_dec_frame_type, dev);
+        frame_type = s5p_mfc_hw_call(dev->mfc_ops, get_disp_frame_type, ctx);
 
         /* If frame is same as previous then skip and do not dequeue */
         if (frame_type == S5P_FIMV_DECODE_FRAME_SKIPPED) {
diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc_enc.c b/drivers/media/platform/s5p-mfc/s5p_mfc_enc.c
index 2356fd52a169..4f6b553c4b2d 100644
--- a/drivers/media/platform/s5p-mfc/s5p_mfc_enc.c
+++ b/drivers/media/platform/s5p-mfc/s5p_mfc_enc.c
@@ -232,6 +232,7 @@ static struct mfc_control controls[] = {
                 .minimum = 0,
                 .maximum = 1,
                 .default_value = 0,
+                .step = 1,
                 .menu_skip_mask = 0,
         },
         {
diff --git a/drivers/media/rc/Kconfig b/drivers/media/rc/Kconfig
index 19f3563c61da..5a79c333d45e 100644
--- a/drivers/media/rc/Kconfig
+++ b/drivers/media/rc/Kconfig
@@ -291,7 +291,7 @@ config IR_TTUSBIR
 
 config IR_RX51
         tristate "Nokia N900 IR transmitter diode"
-        depends on OMAP_DM_TIMER && LIRC && !ARCH_MULTIPLATFORM
+        depends on OMAP_DM_TIMER && ARCH_OMAP2PLUS && LIRC && !ARCH_MULTIPLATFORM
         ---help---
            Say Y or M here if you want to enable support for the IR
            transmitter diode built in the Nokia N900 (RX51) device.
diff --git a/drivers/media/v4l2-core/Makefile b/drivers/media/v4l2-core/Makefile
index a9d355230e8e..768aaf62d5dc 100644
--- a/drivers/media/v4l2-core/Makefile
+++ b/drivers/media/v4l2-core/Makefile
@@ -10,7 +10,7 @@ ifeq ($(CONFIG_COMPAT),y)
   videodev-objs += v4l2-compat-ioctl32.o
 endif
 
-obj-$(CONFIG_VIDEO_DEV) += videodev.o
+obj-$(CONFIG_VIDEO_V4L2) += videodev.o
 obj-$(CONFIG_VIDEO_V4L2_INT_DEVICE) += v4l2-int-device.o
 obj-$(CONFIG_VIDEO_V4L2) += v4l2-common.o
 
diff --git a/drivers/net/bonding/bond_sysfs.c b/drivers/net/bonding/bond_sysfs.c
index 1c9e09fbdff8..db103e03ba05 100644
--- a/drivers/net/bonding/bond_sysfs.c
+++ b/drivers/net/bonding/bond_sysfs.c
@@ -183,6 +183,11 @@ int bond_create_slave_symlinks(struct net_device *master,
         sprintf(linkname, "slave_%s", slave->name);
         ret = sysfs_create_link(&(master->dev.kobj), &(slave->dev.kobj),
                                 linkname);
+
+        /* free the master link created earlier in case of error */
+        if (ret)
+                sysfs_remove_link(&(slave->dev.kobj), "master");
+
         return ret;
 
 }
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.c
index 568205436a15..91ecd6a00d05 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.c
@@ -2139,12 +2139,12 @@ static u8 bnx2x_dcbnl_get_cap(struct net_device *netdev, int capid, u8 *cap)
                         break;
                 default:
                         BNX2X_ERR("Non valid capability ID\n");
-                        rval = -EINVAL;
+                        rval = 1;
                         break;
                 }
         } else {
                 DP(BNX2X_MSG_DCB, "DCB disabled\n");
-                rval = -EINVAL;
+                rval = 1;
         }
 
         DP(BNX2X_MSG_DCB, "capid %d:%x\n", capid, *cap);
@@ -2170,12 +2170,12 @@ static int bnx2x_dcbnl_get_numtcs(struct net_device *netdev, int tcid, u8 *num)
                         break;
                 default:
                         BNX2X_ERR("Non valid TC-ID\n");
-                        rval = -EINVAL;
+                        rval = 1;
                         break;
                 }
         } else {
                 DP(BNX2X_MSG_DCB, "DCB disabled\n");
-                rval = -EINVAL;
+                rval = 1;
         }
 
         return rval;
@@ -2188,7 +2188,7 @@ static int bnx2x_dcbnl_set_numtcs(struct net_device *netdev, int tcid, u8 num)
         return -EINVAL;
 }
 
-static u8  bnx2x_dcbnl_get_pfc_state(struct net_device *netdev)
+static u8 bnx2x_dcbnl_get_pfc_state(struct net_device *netdev)
 {
         struct bnx2x *bp = netdev_priv(netdev);
         DP(BNX2X_MSG_DCB, "state = %d\n", bp->dcbx_local_feat.pfc.enabled);
@@ -2390,12 +2390,12 @@ static u8 bnx2x_dcbnl_get_featcfg(struct net_device *netdev, int featid,
                         break;
                 default:
                         BNX2X_ERR("Non valid featrue-ID\n");
-                        rval = -EINVAL;
+                        rval = 1;
                         break;
                 }
         } else {
                 DP(BNX2X_MSG_DCB, "DCB disabled\n");
-                rval = -EINVAL;
+                rval = 1;
         }
 
         return rval;
@@ -2431,12 +2431,12 @@ static u8 bnx2x_dcbnl_set_featcfg(struct net_device *netdev, int featid,
                         break;
                 default:
                         BNX2X_ERR("Non valid featrue-ID\n");
-                        rval = -EINVAL;
+                        rval = 1;
                         break;
                 }
         } else {
                 DP(BNX2X_MSG_DCB, "dcbnl call not valid\n");
-                rval = -EINVAL;
+                rval = 1;
         }
 
         return rval;
diff --git a/drivers/net/ethernet/freescale/fec.c b/drivers/net/ethernet/freescale/fec.c
index e3f39372ce25..911d0253dbb2 100644
--- a/drivers/net/ethernet/freescale/fec.c
+++ b/drivers/net/ethernet/freescale/fec.c
@@ -1332,7 +1332,7 @@ static int fec_enet_ioctl(struct net_device *ndev, struct ifreq *rq, int cmd)
 static void fec_enet_free_buffers(struct net_device *ndev)
 {
         struct fec_enet_private *fep = netdev_priv(ndev);
-        int i;
+        unsigned int i;
         struct sk_buff *skb;
         struct bufdesc  *bdp;
 
@@ -1356,7 +1356,7 @@ static void fec_enet_free_buffers(struct net_device *ndev)
 static int fec_enet_alloc_buffers(struct net_device *ndev)
 {
         struct fec_enet_private *fep = netdev_priv(ndev);
-        int i;
+        unsigned int i;
         struct sk_buff *skb;
         struct bufdesc  *bdp;
 
@@ -1598,7 +1598,7 @@ static int fec_enet_init(struct net_device *ndev)
         struct fec_enet_private *fep = netdev_priv(ndev);
         struct bufdesc *cbd_base;
         struct bufdesc *bdp;
-        int i;
+        unsigned int i;
 
         /* Allocate memory for buffer descriptors. */
         cbd_base = dma_alloc_coherent(NULL, PAGE_SIZE, &fep->bd_dma,
diff --git a/drivers/net/ethernet/freescale/fec_ptp.c b/drivers/net/ethernet/freescale/fec_ptp.c
index 1f17ca0f2201..0d8df400a479 100644
--- a/drivers/net/ethernet/freescale/fec_ptp.c
+++ b/drivers/net/ethernet/freescale/fec_ptp.c
@@ -128,6 +128,7 @@ void fec_ptp_start_cyclecounter(struct net_device *ndev)
 
         spin_unlock_irqrestore(&fep->tmreg_lock, flags);
 }
+EXPORT_SYMBOL(fec_ptp_start_cyclecounter);
 
 /**
  * fec_ptp_adjfreq - adjust ptp cycle frequency
@@ -318,6 +319,7 @@ int fec_ptp_ioctl(struct net_device *ndev, struct ifreq *ifr, int cmd)
         return copy_to_user(ifr->ifr_data, &config, sizeof(config)) ?
             -EFAULT : 0;
 }
+EXPORT_SYMBOL(fec_ptp_ioctl);
 
 /**
  * fec_time_keep - call timecounter_read every second to avoid timer overrun
@@ -383,3 +385,4 @@ void fec_ptp_init(struct net_device *ndev, struct platform_device *pdev)
                 pr_info("registered PHC device on %s\n", ndev->name);
         }
 }
+EXPORT_SYMBOL(fec_ptp_init);
diff --git a/drivers/net/ethernet/intel/igb/e1000_82575.c b/drivers/net/ethernet/intel/igb/e1000_82575.c
index b64542acfa34..12b1d8480808 100644
--- a/drivers/net/ethernet/intel/igb/e1000_82575.c
+++ b/drivers/net/ethernet/intel/igb/e1000_82575.c
@@ -1818,27 +1818,32 @@ out:
  **/
 void igb_vmdq_set_anti_spoofing_pf(struct e1000_hw *hw, bool enable, int pf)
 {
-        u32 dtxswc;
+        u32 reg_val, reg_offset;
 
         switch (hw->mac.type) {
         case e1000_82576:
+                reg_offset = E1000_DTXSWC;
+                break;
         case e1000_i350:
-                dtxswc = rd32(E1000_DTXSWC);
-                if (enable) {
-                        dtxswc |= (E1000_DTXSWC_MAC_SPOOF_MASK |
-                                   E1000_DTXSWC_VLAN_SPOOF_MASK);
-                        /* The PF can spoof - it has to in order to
-                         * support emulation mode NICs */
-                        dtxswc ^= (1 << pf | 1 << (pf + MAX_NUM_VFS));
-                } else {
-                        dtxswc &= ~(E1000_DTXSWC_MAC_SPOOF_MASK |
-                                    E1000_DTXSWC_VLAN_SPOOF_MASK);
-                }
-                wr32(E1000_DTXSWC, dtxswc);
+                reg_offset = E1000_TXSWC;
                 break;
         default:
-                break;
+                return;
+        }
+
+        reg_val = rd32(reg_offset);
+        if (enable) {
+                reg_val |= (E1000_DTXSWC_MAC_SPOOF_MASK |
+                             E1000_DTXSWC_VLAN_SPOOF_MASK);
+                /* The PF can spoof - it has to in order to
+                 * support emulation mode NICs
+                 */
+                reg_val ^= (1 << pf | 1 << (pf + MAX_NUM_VFS));
+        } else {
+                reg_val &= ~(E1000_DTXSWC_MAC_SPOOF_MASK |
+                             E1000_DTXSWC_VLAN_SPOOF_MASK);
         }
+        wr32(reg_offset, reg_val);
 }
 
 /**
diff --git a/drivers/net/ethernet/intel/igb/igb_hwmon.c b/drivers/net/ethernet/intel/igb/igb_hwmon.c
index 4623502054d5..0478a1abe541 100644
--- a/drivers/net/ethernet/intel/igb/igb_hwmon.c
+++ b/drivers/net/ethernet/intel/igb/igb_hwmon.c
@@ -39,7 +39,7 @@
 #include <linux/pci.h>
 
 #ifdef CONFIG_IGB_HWMON
-struct i2c_board_info i350_sensor_info = {
+static struct i2c_board_info i350_sensor_info = {
         I2C_BOARD_INFO("i350bb", (0Xf8 >> 1)),
 };
 
diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c
index 4dbd62968c7a..8496adfc6a68 100644
--- a/drivers/net/ethernet/intel/igb/igb_main.c
+++ b/drivers/net/ethernet/intel/igb/igb_main.c
@@ -2542,8 +2542,8 @@ static void igb_probe_vfs(struct igb_adapter *adapter)
         if ((hw->mac.type == e1000_i210) || (hw->mac.type == e1000_i211))
                 return;
 
-        igb_enable_sriov(pdev, max_vfs);
         pci_sriov_set_totalvfs(pdev, 7);
+        igb_enable_sriov(pdev, max_vfs);
 
 #endif /* CONFIG_PCI_IOV */
 }
@@ -2652,7 +2652,7 @@ static int igb_sw_init(struct igb_adapter *adapter)
                 if (max_vfs > 7) {
                         dev_warn(&pdev->dev,
                                  "Maximum of 7 VFs per PF, using max\n");
-                        adapter->vfs_allocated_count = 7;
+                        max_vfs = adapter->vfs_allocated_count = 7;
                 } else
                         adapter->vfs_allocated_count = max_vfs;
                 if (adapter->vfs_allocated_count)
diff --git a/drivers/net/ethernet/intel/igb/igb_ptp.c b/drivers/net/ethernet/intel/igb/igb_ptp.c
index 0987822359f0..0a237507ee85 100644
--- a/drivers/net/ethernet/intel/igb/igb_ptp.c
+++ b/drivers/net/ethernet/intel/igb/igb_ptp.c
@@ -740,7 +740,7 @@ void igb_ptp_init(struct igb_adapter *adapter)
         case e1000_82576:
                 snprintf(adapter->ptp_caps.name, 16, "%pm", netdev->dev_addr);
                 adapter->ptp_caps.owner = THIS_MODULE;
-                adapter->ptp_caps.max_adj = 1000000000;
+                adapter->ptp_caps.max_adj = 999999881;
                 adapter->ptp_caps.n_ext_ts = 0;
                 adapter->ptp_caps.pps = 0;
                 adapter->ptp_caps.adjfreq = igb_ptp_adjfreq_82576;
diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
index c3db6cd69b68..2b6cb5ca48ee 100644
--- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
+++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
@@ -944,9 +944,17 @@ free_queue_irqs:
                 free_irq(adapter->msix_entries[vector].vector,
                          adapter->q_vector[vector]);
         }
-        pci_disable_msix(adapter->pdev);
-        kfree(adapter->msix_entries);
-        adapter->msix_entries = NULL;
+        /* This failure is non-recoverable - it indicates the system is
+         * out of MSIX vector resources and the VF driver cannot run
+         * without them.  Set the number of msix vectors to zero
+         * indicating that not enough can be allocated.  The error
+         * will be returned to the user indicating device open failed.
+         * Any further attempts to force the driver to open will also
+         * fail.  The only way to recover is to unload the driver and
+         * reload it again.  If the system has recovered some MSIX
+         * vectors then it may succeed.
+         */
+        adapter->num_msix_vectors = 0;
         return err;
 }
 
@@ -2572,6 +2580,15 @@ static int ixgbevf_open(struct net_device *netdev)
         struct ixgbe_hw *hw = &adapter->hw;
         int err;
 
+        /* A previous failure to open the device because of a lack of
+         * available MSIX vector resources may have reset the number
+         * of msix vectors variable to zero.  The only way to recover
+         * is to unload/reload the driver and hope that the system has
+         * been able to recover some MSIX vector resources.
+         */
+        if (!adapter->num_msix_vectors)
+                return -ENOMEM;
+
         /* disallow open during test */
         if (test_bit(__IXGBEVF_TESTING, &adapter->state))
                 return -EBUSY;
@@ -2628,7 +2645,6 @@ static int ixgbevf_open(struct net_device *netdev)
 
 err_req_irq:
         ixgbevf_down(adapter);
-        ixgbevf_free_irq(adapter);
 err_setup_rx:
         ixgbevf_free_all_rx_resources(adapter);
 err_setup_tx:
diff --git a/drivers/net/ethernet/lantiq_etop.c b/drivers/net/ethernet/lantiq_etop.c
index 6a2127489af7..bfdb06860397 100644
--- a/drivers/net/ethernet/lantiq_etop.c
+++ b/drivers/net/ethernet/lantiq_etop.c
@@ -769,7 +769,7 @@ ltq_etop_probe(struct platform_device *pdev)
         return 0;
 
 err_free:
-        kfree(dev);
+        free_netdev(dev);
 err_out:
         return err;
 }
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
index 995d4b6d5c1e..f278b10ef714 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
@@ -1637,6 +1637,17 @@ void mlx4_en_stop_port(struct net_device *dev, int detach)
         /* Flush multicast filter */
         mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0, 1, MLX4_MCAST_CONFIG);
 
+        /* Remove flow steering rules for the port*/
+        if (mdev->dev->caps.steering_mode ==
+            MLX4_STEERING_MODE_DEVICE_MANAGED) {
+                ASSERT_RTNL();
+                list_for_each_entry_safe(flow, tmp_flow,
+                                         &priv->ethtool_list, list) {
+                        mlx4_flow_detach(mdev->dev, flow->id);
+                        list_del(&flow->list);
+                }
+        }
+
         mlx4_en_destroy_drop_qp(priv);
 
         /* Free TX Rings */
@@ -1657,17 +1668,6 @@ void mlx4_en_stop_port(struct net_device *dev, int detach)
         if (!(mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAGS2_REASSIGN_MAC_EN))
                 mdev->mac_removed[priv->port] = 1;
 
-        /* Remove flow steering rules for the port*/
-        if (mdev->dev->caps.steering_mode ==
-            MLX4_STEERING_MODE_DEVICE_MANAGED) {
-                ASSERT_RTNL();
-                list_for_each_entry_safe(flow, tmp_flow,
-                                         &priv->ethtool_list, list) {
-                        mlx4_flow_detach(mdev->dev, flow->id);
-                        list_del(&flow->list);
-                }
-        }
-
         /* Free RX Rings */
         for (i = 0; i < priv->rx_ring_num; i++) {
                 mlx4_en_deactivate_rx_ring(priv, &priv->rx_ring[i]);
diff --git a/drivers/net/ethernet/mellanox/mlx4/eq.c b/drivers/net/ethernet/mellanox/mlx4/eq.c
index 251ae2f93116..8e3123a1df88 100644
--- a/drivers/net/ethernet/mellanox/mlx4/eq.c
+++ b/drivers/net/ethernet/mellanox/mlx4/eq.c
@@ -771,7 +771,7 @@ int mlx4_MAP_EQ_wrapper(struct mlx4_dev *dev, int slave,
         struct mlx4_slave_event_eq_info *event_eq =
                 priv->mfunc.master.slave_state[slave].event_eq;
         u32 in_modifier = vhcr->in_modifier;
-        u32 eqn = in_modifier & 0x1FF;
+        u32 eqn = in_modifier & 0x3FF;
         u64 in_param =  vhcr->in_param;
         int err = 0;
         int i;
diff --git a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c
index 2995687f1aee..1391b52f443a 100644
--- a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c
+++ b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c
@@ -99,6 +99,7 @@ struct res_qp {
         struct list_head        mcg_list;
         spinlock_t              mcg_spl;
         int                     local_qpn;
+        atomic_t                ref_count;
 };
 
 enum res_mtt_states {
@@ -197,6 +198,7 @@ enum res_fs_rule_states {
 
 struct res_fs_rule {
         struct res_common       com;
+        int                     qpn;
 };
 
 static void *res_tracker_lookup(struct rb_root *root, u64 res_id)
@@ -355,7 +357,7 @@ static int mpt_mask(struct mlx4_dev *dev)
         return dev->caps.num_mpts - 1;
 }
 
-static void *find_res(struct mlx4_dev *dev, int res_id,
+static void *find_res(struct mlx4_dev *dev, u64 res_id,
                       enum mlx4_resource type)
 {
         struct mlx4_priv *priv = mlx4_priv(dev);
@@ -447,6 +449,7 @@ static struct res_common *alloc_qp_tr(int id)
         ret->local_qpn = id;
         INIT_LIST_HEAD(&ret->mcg_list);
         spin_lock_init(&ret->mcg_spl);
+        atomic_set(&ret->ref_count, 0);
 
         return &ret->com;
 }
@@ -554,7 +557,7 @@ static struct res_common *alloc_xrcdn_tr(int id)
         return &ret->com;
 }
 
-static struct res_common *alloc_fs_rule_tr(u64 id)
+static struct res_common *alloc_fs_rule_tr(u64 id, int qpn)
 {
         struct res_fs_rule *ret;
 
@@ -564,7 +567,7 @@ static struct res_common *alloc_fs_rule_tr(u64 id)
 
         ret->com.res_id = id;
         ret->com.state = RES_FS_RULE_ALLOCATED;
-
+        ret->qpn = qpn;
         return &ret->com;
 }
 
@@ -602,7 +605,7 @@ static struct res_common *alloc_tr(u64 id, enum mlx4_resource type, int slave,
                 ret = alloc_xrcdn_tr(id);
                 break;
         case RES_FS_RULE:
-                ret = alloc_fs_rule_tr(id);
+                ret = alloc_fs_rule_tr(id, extra);
                 break;
         default:
                 return NULL;
@@ -671,10 +674,14 @@ undo:
 
 static int remove_qp_ok(struct res_qp *res)
 {
-        if (res->com.state == RES_QP_BUSY)
+        if (res->com.state == RES_QP_BUSY || atomic_read(&res->ref_count) ||
+            !list_empty(&res->mcg_list)) {
+                pr_err("resource tracker: fail to remove qp, state %d, ref_count %d\n",
+                       res->com.state, atomic_read(&res->ref_count));
                 return -EBUSY;
-        else if (res->com.state != RES_QP_RESERVED)
+        } else if (res->com.state != RES_QP_RESERVED) {
                 return -EPERM;
+        }
 
         return 0;
 }
@@ -3124,6 +3131,7 @@ int mlx4_QP_FLOW_STEERING_ATTACH_wrapper(struct mlx4_dev *dev, int slave,
         struct list_head *rlist = &tracker->slave_list[slave].res_list[RES_MAC];
         int err;
         int qpn;
+        struct res_qp *rqp;
         struct mlx4_net_trans_rule_hw_ctrl *ctrl;
         struct _rule_hw  *rule_header;
         int header_id;
@@ -3134,7 +3142,7 @@ int mlx4_QP_FLOW_STEERING_ATTACH_wrapper(struct mlx4_dev *dev, int slave,
 
         ctrl = (struct mlx4_net_trans_rule_hw_ctrl *)inbox->buf;
         qpn = be32_to_cpu(ctrl->qpn) & 0xffffff;
-        err = get_res(dev, slave, qpn, RES_QP, NULL);
+        err = get_res(dev, slave, qpn, RES_QP, &rqp);
         if (err) {
                 pr_err("Steering rule with qpn 0x%x rejected.\n", qpn);
                 return err;
@@ -3175,14 +3183,16 @@ int mlx4_QP_FLOW_STEERING_ATTACH_wrapper(struct mlx4_dev *dev, int slave,
         if (err)
                 goto err_put;
 
-        err = add_res_range(dev, slave, vhcr->out_param, 1, RES_FS_RULE, 0);
+        err = add_res_range(dev, slave, vhcr->out_param, 1, RES_FS_RULE, qpn);
         if (err) {
                 mlx4_err(dev, "Fail to add flow steering resources.\n ");
                 /* detach rule*/
                 mlx4_cmd(dev, vhcr->out_param, 0, 0,
                          MLX4_QP_FLOW_STEERING_DETACH, MLX4_CMD_TIME_CLASS_A,
                          MLX4_CMD_NATIVE);
+                goto err_put;
         }
+        atomic_inc(&rqp->ref_count);
 err_put:
         put_res(dev, slave, qpn, RES_QP);
         return err;
@@ -3195,20 +3205,35 @@ int mlx4_QP_FLOW_STEERING_DETACH_wrapper(struct mlx4_dev *dev, int slave,
                                          struct mlx4_cmd_info *cmd)
 {
         int err;
+        struct res_qp *rqp;
+        struct res_fs_rule *rrule;
 
         if (dev->caps.steering_mode !=
             MLX4_STEERING_MODE_DEVICE_MANAGED)
                 return -EOPNOTSUPP;
 
+        err = get_res(dev, slave, vhcr->in_param, RES_FS_RULE, &rrule);
+        if (err)
+                return err;
+        /* Release the rule form busy state before removal */
+        put_res(dev, slave, vhcr->in_param, RES_FS_RULE);
+        err = get_res(dev, slave, rrule->qpn, RES_QP, &rqp);
+        if (err)
+                return err;
+
         err = rem_res_range(dev, slave, vhcr->in_param, 1, RES_FS_RULE, 0);
         if (err) {
                 mlx4_err(dev, "Fail to remove flow steering resources.\n ");
-                return err;
+                goto out;
         }
 
         err = mlx4_cmd(dev, vhcr->in_param, 0, 0,
                        MLX4_QP_FLOW_STEERING_DETACH, MLX4_CMD_TIME_CLASS_A,
                        MLX4_CMD_NATIVE);
+        if (!err)
+                atomic_dec(&rqp->ref_count);
+out:
+        put_res(dev, slave, rrule->qpn, RES_QP);
         return err;
 }
 
@@ -3806,6 +3831,7 @@ void mlx4_delete_all_resources_for_slave(struct mlx4_dev *dev, int slave)
         mutex_lock(&priv->mfunc.master.res_tracker.slave_list[slave].mutex);
         /*VLAN*/
         rem_slave_macs(dev, slave);
+        rem_slave_fs_rule(dev, slave);
         rem_slave_qps(dev, slave);
         rem_slave_srqs(dev, slave);
         rem_slave_cqs(dev, slave);
@@ -3814,6 +3840,5 @@ void mlx4_delete_all_resources_for_slave(struct mlx4_dev *dev, int slave)
         rem_slave_mtts(dev, slave);
         rem_slave_counters(dev, slave);
         rem_slave_xrcdns(dev, slave);
-        rem_slave_fs_rule(dev, slave);
         mutex_unlock(&priv->mfunc.master.res_tracker.slave_list[slave].mutex);
 }
diff --git a/drivers/net/ethernet/nxp/lpc_eth.c b/drivers/net/ethernet/nxp/lpc_eth.c
index c4122c86f829..efa29b712d5f 100644
--- a/drivers/net/ethernet/nxp/lpc_eth.c
+++ b/drivers/net/ethernet/nxp/lpc_eth.c
@@ -1472,7 +1472,8 @@ static int lpc_eth_drv_probe(struct platform_device *pdev)
         }
         platform_set_drvdata(pdev, ndev);
 
-        if (lpc_mii_init(pldat) != 0)
+        ret = lpc_mii_init(pldat);
+        if (ret)
                 goto err_out_unregister_netdev;
 
         netdev_info(ndev, "LPC mac at 0x%08x irq %d\n",
diff --git a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c
index 39ab4d09faaa..73ce7dd6b954 100644
--- a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c
+++ b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c
@@ -1726,9 +1726,9 @@ pch_gbe_clean_rx(struct pch_gbe_adapter *adapter,
 
                         skb->protocol = eth_type_trans(skb, netdev);
                         if (tcp_ip_status & PCH_GBE_RXD_ACC_STAT_TCPIPOK)
-                                skb->ip_summed = CHECKSUM_NONE;
-                        else
                                 skb->ip_summed = CHECKSUM_UNNECESSARY;
+                        else
+                                skb->ip_summed = CHECKSUM_NONE;
 
                         napi_gro_receive(&adapter->napi, skb);
                         (*work_done)++;
diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
index 33e96176e4d8..bf5e3cf97c4d 100644
--- a/drivers/net/ethernet/renesas/sh_eth.c
+++ b/drivers/net/ethernet/renesas/sh_eth.c
@@ -2220,6 +2220,7 @@ static void sh_eth_tsu_init(struct sh_eth_private *mdp)
 /* MDIO bus release function */
 static int sh_mdio_release(struct net_device *ndev)
 {
+        struct sh_eth_private *mdp = netdev_priv(ndev);
         struct mii_bus *bus = dev_get_drvdata(&ndev->dev);
 
         /* unregister mdio bus */
@@ -2234,6 +2235,9 @@ static int sh_mdio_release(struct net_device *ndev)
         /* free bitbang info */
         free_mdio_bitbang(bus);
 
+        /* free bitbang memory */
+        kfree(mdp->bitbang);
+
         return 0;
 }
 
@@ -2262,6 +2266,7 @@ static int sh_mdio_init(struct net_device *ndev, int id,
         bitbang->ctrl.ops = &bb_ops;
 
         /* MII controller setting */
+        mdp->bitbang = bitbang;
         mdp->mii_bus = alloc_mdio_bitbang(&bitbang->ctrl);
         if (!mdp->mii_bus) {
                 ret = -ENOMEM;
@@ -2441,6 +2446,11 @@ static int sh_eth_drv_probe(struct platform_device *pdev)
                 }
                 mdp->tsu_addr = ioremap(rtsu->start,
                                         resource_size(rtsu));
+                if (mdp->tsu_addr == NULL) {
+                        ret = -ENOMEM;
+                        dev_err(&pdev->dev, "TSU ioremap failed.\n");
+                        goto out_release;
+                }
                 mdp->port = devno % 2;
                 ndev->features = NETIF_F_HW_VLAN_FILTER;
         }
diff --git a/drivers/net/ethernet/renesas/sh_eth.h b/drivers/net/ethernet/renesas/sh_eth.h
index bae84fd2e73a..e6655678458e 100644
--- a/drivers/net/ethernet/renesas/sh_eth.h
+++ b/drivers/net/ethernet/renesas/sh_eth.h
@@ -705,6 +705,7 @@ struct sh_eth_private {
         const u16 *reg_offset;
         void __iomem *addr;
         void __iomem *tsu_addr;
+        struct bb_info *bitbang;
         u32 num_rx_ring;
         u32 num_tx_ring;
         dma_addr_t rx_desc_dma;
diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c
index 75c48558e6fd..df32a090d08e 100644
--- a/drivers/net/ethernet/ti/cpsw.c
+++ b/drivers/net/ethernet/ti/cpsw.c
@@ -1364,7 +1364,7 @@ static int cpsw_probe_dt(struct cpsw_platform_data *data,
                 struct platform_device *mdio;
 
                 parp = of_get_property(slave_node, "phy_id", &lenp);
-                if ((parp == NULL) && (lenp != (sizeof(void *) * 2))) {
+                if ((parp == NULL) || (lenp != (sizeof(void *) * 2))) {
                         pr_err("Missing slave[%d] phy_id property\n", i);
                         ret = -EINVAL;
                         goto error_ret;
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_calib.c b/drivers/net/wireless/ath/ath9k/ar9003_calib.c
index 4cc13940c895..f76c3ca07a45 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_calib.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_calib.c
@@ -1023,6 +1023,7 @@ static bool ar9003_hw_init_cal(struct ath_hw *ah,
                                           AR_PHY_AGC_CONTROL_FLTR_CAL   |
                                           AR_PHY_AGC_CONTROL_PKDET_CAL;
 
+        /* Use chip chainmask only for calibration */
         ar9003_hw_set_chain_masks(ah, ah->caps.rx_chainmask, ah->caps.tx_chainmask);
 
         if (rtt) {
@@ -1150,6 +1151,9 @@ skip_tx_iqcal:
                 ar9003_hw_rtt_disable(ah);
         }
 
+        /* Revert chainmask to runtime parameters */
+        ar9003_hw_set_chain_masks(ah, ah->rxchainmask, ah->txchainmask);
+
         /* Initialize list pointers */
         ah->cal_list = ah->cal_list_last = ah->cal_list_curr = NULL;
 
diff --git a/drivers/net/wireless/ath/ath9k/link.c b/drivers/net/wireless/ath/ath9k/link.c
index ade3afb21f91..39c84ecf6a42 100644
--- a/drivers/net/wireless/ath/ath9k/link.c
+++ b/drivers/net/wireless/ath/ath9k/link.c
@@ -28,21 +28,21 @@ void ath_tx_complete_poll_work(struct work_struct *work)
         int i;
         bool needreset = false;
 
-        for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++)
-                if (ATH_TXQ_SETUP(sc, i)) {
-                        txq = &sc->tx.txq[i];
-                        ath_txq_lock(sc, txq);
-                        if (txq->axq_depth) {
-                                if (txq->axq_tx_inprogress) {
-                                        needreset = true;
-                                        ath_txq_unlock(sc, txq);
-                                        break;
-                                } else {
-                                        txq->axq_tx_inprogress = true;
-                                }
+        for (i = 0; i < IEEE80211_NUM_ACS; i++) {
+                txq = sc->tx.txq_map[i];
+
+                ath_txq_lock(sc, txq);
+                if (txq->axq_depth) {
+                        if (txq->axq_tx_inprogress) {
+                                needreset = true;
+                                ath_txq_unlock(sc, txq);
+                                break;
+                        } else {
+                                txq->axq_tx_inprogress = true;
                         }
-                        ath_txq_unlock_complete(sc, txq);
                 }
+                ath_txq_unlock_complete(sc, txq);
+        }
 
         if (needreset) {
                 ath_dbg(ath9k_hw_common(sc->sc_ah), RESET,
diff --git a/drivers/net/wireless/iwlegacy/3945-mac.c b/drivers/net/wireless/iwlegacy/3945-mac.c
index 3630a41df50d..c353b5f19c8c 100644
--- a/drivers/net/wireless/iwlegacy/3945-mac.c
+++ b/drivers/net/wireless/iwlegacy/3945-mac.c
@@ -475,6 +475,7 @@ il3945_tx_skb(struct il_priv *il,
         dma_addr_t txcmd_phys;
         int txq_id = skb_get_queue_mapping(skb);
         u16 len, idx, hdr_len;
+        u16 firstlen, secondlen;
         u8 id;
         u8 unicast;
         u8 sta_id;
@@ -589,21 +590,22 @@ il3945_tx_skb(struct il_priv *il,
         len =
             sizeof(struct il3945_tx_cmd) + sizeof(struct il_cmd_header) +
             hdr_len;
-        len = (len + 3) & ~3;
+        firstlen = (len + 3) & ~3;
 
         /* Physical address of this Tx command's header (not MAC header!),
          * within command buffer array. */
         txcmd_phys =
-            pci_map_single(il->pci_dev, &out_cmd->hdr, len, PCI_DMA_TODEVICE);
+            pci_map_single(il->pci_dev, &out_cmd->hdr, firstlen,
+                           PCI_DMA_TODEVICE);
         if (unlikely(pci_dma_mapping_error(il->pci_dev, txcmd_phys)))
                 goto drop_unlock;
 
         /* Set up TFD's 2nd entry to point directly to remainder of skb,
          * if any (802.11 null frames have no payload). */
-        len = skb->len - hdr_len;
-        if (len) {
+        secondlen = skb->len - hdr_len;
+        if (secondlen > 0) {
                 phys_addr =
-                    pci_map_single(il->pci_dev, skb->data + hdr_len, len,
+                    pci_map_single(il->pci_dev, skb->data + hdr_len, secondlen,
                                    PCI_DMA_TODEVICE);
                 if (unlikely(pci_dma_mapping_error(il->pci_dev, phys_addr)))
                         goto drop_unlock;
@@ -611,12 +613,12 @@ il3945_tx_skb(struct il_priv *il,
 
         /* Add buffer containing Tx command and MAC(!) header to TFD's
          * first entry */
-        il->ops->txq_attach_buf_to_tfd(il, txq, txcmd_phys, len, 1, 0);
+        il->ops->txq_attach_buf_to_tfd(il, txq, txcmd_phys, firstlen, 1, 0);
         dma_unmap_addr_set(out_meta, mapping, txcmd_phys);
-        dma_unmap_len_set(out_meta, len, len);
-        if (len)
-                il->ops->txq_attach_buf_to_tfd(il, txq, phys_addr, len, 0,
-                                               U32_PAD(len));
+        dma_unmap_len_set(out_meta, len, firstlen);
+        if (secondlen > 0)
+                il->ops->txq_attach_buf_to_tfd(il, txq, phys_addr, secondlen, 0,
+                                               U32_PAD(secondlen));
 
         if (!ieee80211_has_morefrags(hdr->frame_control)) {
                 txq->need_update = 1;
diff --git a/drivers/net/wireless/mwifiex/cmdevt.c b/drivers/net/wireless/mwifiex/cmdevt.c
index 20a6c5555873..b5c8b962ce12 100644
--- a/drivers/net/wireless/mwifiex/cmdevt.c
+++ b/drivers/net/wireless/mwifiex/cmdevt.c
@@ -157,6 +157,20 @@ static int mwifiex_dnld_cmd_to_fw(struct mwifiex_private *priv,
                 return -1;
         }
 
+        cmd_code = le16_to_cpu(host_cmd->command);
+        cmd_size = le16_to_cpu(host_cmd->size);
+
+        if (adapter->hw_status == MWIFIEX_HW_STATUS_RESET &&
+            cmd_code != HostCmd_CMD_FUNC_SHUTDOWN &&
+            cmd_code != HostCmd_CMD_FUNC_INIT) {
+                dev_err(adapter->dev,
+                        "DNLD_CMD: FW in reset state, ignore cmd %#x\n",
+                        cmd_code);
+                mwifiex_complete_cmd(adapter, cmd_node);
+                mwifiex_insert_cmd_to_free_q(adapter, cmd_node);
+                return -1;
+        }
+
         /* Set command sequence number */
         adapter->seq_num++;
         host_cmd->seq_num = cpu_to_le16(HostCmd_SET_SEQ_NO_BSS_INFO
@@ -168,9 +182,6 @@ static int mwifiex_dnld_cmd_to_fw(struct mwifiex_private *priv,
         adapter->curr_cmd = cmd_node;
         spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, flags);
 
-        cmd_code = le16_to_cpu(host_cmd->command);
-        cmd_size = le16_to_cpu(host_cmd->size);
-
         /* Adjust skb length */
         if (cmd_node->cmd_skb->len > cmd_size)
                 /*
@@ -484,8 +495,6 @@ int mwifiex_send_cmd_sync(struct mwifiex_private *priv, uint16_t cmd_no,
 
         ret = mwifiex_send_cmd_async(priv, cmd_no, cmd_action, cmd_oid,
                                      data_buf);
-        if (!ret)
-                ret = mwifiex_wait_queue_complete(adapter);
 
         return ret;
 }
@@ -588,9 +597,10 @@ int mwifiex_send_cmd_async(struct mwifiex_private *priv, uint16_t cmd_no,
         if (cmd_no == HostCmd_CMD_802_11_SCAN) {
                 mwifiex_queue_scan_cmd(priv, cmd_node);
         } else {
-                adapter->cmd_queued = cmd_node;
                 mwifiex_insert_cmd_to_pending_q(adapter, cmd_node, true);
                 queue_work(adapter->workqueue, &adapter->main_work);
+                if (cmd_node->wait_q_enabled)
+                        ret = mwifiex_wait_queue_complete(adapter, cmd_node);
         }
 
         return ret;
diff --git a/drivers/net/wireless/mwifiex/init.c b/drivers/net/wireless/mwifiex/init.c
index e38aa9b3663d..0ff4c37ab42a 100644
--- a/drivers/net/wireless/mwifiex/init.c
+++ b/drivers/net/wireless/mwifiex/init.c
@@ -709,6 +709,14 @@ mwifiex_shutdown_drv(struct mwifiex_adapter *adapter)
                 return ret;
         }
 
+        /* cancel current command */
+        if (adapter->curr_cmd) {
+                dev_warn(adapter->dev, "curr_cmd is still in processing\n");
+                del_timer(&adapter->cmd_timer);
+                mwifiex_insert_cmd_to_free_q(adapter, adapter->curr_cmd);
+                adapter->curr_cmd = NULL;
+        }
+
         /* shut down mwifiex */
         dev_dbg(adapter->dev, "info: shutdown mwifiex...\n");
 
diff --git a/drivers/net/wireless/mwifiex/main.h b/drivers/net/wireless/mwifiex/main.h
index 553adfb0aa81..7035ade9af74 100644
--- a/drivers/net/wireless/mwifiex/main.h
+++ b/drivers/net/wireless/mwifiex/main.h
@@ -723,7 +723,6 @@ struct mwifiex_adapter {
         u16 cmd_wait_q_required;
         struct mwifiex_wait_queue cmd_wait_q;
         u8 scan_wait_q_woken;
-        struct cmd_ctrl_node *cmd_queued;
         spinlock_t queue_lock;          /* lock for tx queues */
         struct completion fw_load;
         u8 country_code[IEEE80211_COUNTRY_STRING_LEN];
@@ -1018,7 +1017,8 @@ int mwifiex_request_set_multicast_list(struct mwifiex_private *priv,
                         struct mwifiex_multicast_list *mcast_list);
 int mwifiex_copy_mcast_addr(struct mwifiex_multicast_list *mlist,
                             struct net_device *dev);
-int mwifiex_wait_queue_complete(struct mwifiex_adapter *adapter);
+int mwifiex_wait_queue_complete(struct mwifiex_adapter *adapter,
+                                struct cmd_ctrl_node *cmd_queued);
 int mwifiex_bss_start(struct mwifiex_private *priv, struct cfg80211_bss *bss,
                       struct cfg80211_ssid *req_ssid);
 int mwifiex_cancel_hs(struct mwifiex_private *priv, int cmd_type);
diff --git a/drivers/net/wireless/mwifiex/scan.c b/drivers/net/wireless/mwifiex/scan.c
index bb60c2754a97..d215b4d3c51b 100644
--- a/drivers/net/wireless/mwifiex/scan.c
+++ b/drivers/net/wireless/mwifiex/scan.c
@@ -1388,10 +1388,13 @@ int mwifiex_scan_networks(struct mwifiex_private *priv,
                         list_del(&cmd_node->list);
                         spin_unlock_irqrestore(&adapter->scan_pending_q_lock,
                                                flags);
-                        adapter->cmd_queued = cmd_node;
                         mwifiex_insert_cmd_to_pending_q(adapter, cmd_node,
                                                         true);
                         queue_work(adapter->workqueue, &adapter->main_work);
+
+                        /* Perform internal scan synchronously */
+                        if (!priv->scan_request)
+                                mwifiex_wait_queue_complete(adapter, cmd_node);
                 } else {
                         spin_unlock_irqrestore(&adapter->scan_pending_q_lock,
                                                flags);
@@ -1946,9 +1949,6 @@ int mwifiex_request_scan(struct mwifiex_private *priv,
                 /* Normal scan */
                 ret = mwifiex_scan_networks(priv, NULL);
 
-        if (!ret)
-                ret = mwifiex_wait_queue_complete(priv->adapter);
-
         up(&priv->async_sem);
 
         return ret;
diff --git a/drivers/net/wireless/mwifiex/sta_ioctl.c b/drivers/net/wireless/mwifiex/sta_ioctl.c
index 9f33c92c90f5..13100f8de3db 100644
--- a/drivers/net/wireless/mwifiex/sta_ioctl.c
+++ b/drivers/net/wireless/mwifiex/sta_ioctl.c
@@ -54,16 +54,10 @@ int mwifiex_copy_mcast_addr(struct mwifiex_multicast_list *mlist,
  * This function waits on a cmd wait queue. It also cancels the pending
  * request after waking up, in case of errors.
  */
-int mwifiex_wait_queue_complete(struct mwifiex_adapter *adapter)
+int mwifiex_wait_queue_complete(struct mwifiex_adapter *adapter,
+                                struct cmd_ctrl_node *cmd_queued)
 {
         int status;
-        struct cmd_ctrl_node *cmd_queued;
-
-        if (!adapter->cmd_queued)
-                return 0;
-
-        cmd_queued = adapter->cmd_queued;
-        adapter->cmd_queued = NULL;
 
         dev_dbg(adapter->dev, "cmd pending\n");
         atomic_inc(&adapter->cmd_pending);
diff --git a/drivers/net/wireless/rtlwifi/usb.c b/drivers/net/wireless/rtlwifi/usb.c
index 156b52732f3d..5847d6d0881e 100644
--- a/drivers/net/wireless/rtlwifi/usb.c
+++ b/drivers/net/wireless/rtlwifi/usb.c
@@ -851,6 +851,7 @@ static void _rtl_usb_transmit(struct ieee80211_hw *hw, struct sk_buff *skb,
         if (unlikely(!_urb)) {
                 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
                          "Can't allocate urb. Drop skb!\n");
+                kfree_skb(skb);
                 return;
         }
         _rtl_submit_tx_urb(hw, _urb);
diff --git a/drivers/pinctrl/mvebu/pinctrl-mvebu.c b/drivers/pinctrl/mvebu/pinctrl-mvebu.c
index c689c04a4f52..2d2f0a43d36b 100644
--- a/drivers/pinctrl/mvebu/pinctrl-mvebu.c
+++ b/drivers/pinctrl/mvebu/pinctrl-mvebu.c
@@ -620,7 +620,7 @@ int mvebu_pinctrl_probe(struct platform_device *pdev)
 
                 /* special soc specific control */
                 if (ctrl->mpp_get || ctrl->mpp_set) {
-                        if (!ctrl->name || !ctrl->mpp_set || !ctrl->mpp_set) {
+                        if (!ctrl->name || !ctrl->mpp_get || !ctrl->mpp_set) {
                                 dev_err(&pdev->dev, "wrong soc control info\n");
                                 return -EINVAL;
                         }
diff --git a/drivers/pinctrl/pinconf.c b/drivers/pinctrl/pinconf.c
index ac8d382a79bb..d611ecfcbf70 100644
--- a/drivers/pinctrl/pinconf.c
+++ b/drivers/pinctrl/pinconf.c
@@ -622,7 +622,7 @@ static const struct file_operations pinconf_dbg_pinname_fops = {
 static int pinconf_dbg_state_print(struct seq_file *s, void *d)
 {
         if (strlen(dbg_state_name))
-                seq_printf(s, "%s\n", dbg_pinname);
+                seq_printf(s, "%s\n", dbg_state_name);
         else
                 seq_printf(s, "No pin state set\n");
         return 0;
diff --git a/drivers/pinctrl/pinconf.h b/drivers/pinctrl/pinconf.h
index e3ed8cb072a5..bfda73d64eed 100644
--- a/drivers/pinctrl/pinconf.h
+++ b/drivers/pinctrl/pinconf.h
@@ -90,7 +90,7 @@ static inline void pinconf_init_device_debugfs(struct dentry *devroot,
  * pin config.
  */
 
-#ifdef CONFIG_GENERIC_PINCONF
+#if defined(CONFIG_GENERIC_PINCONF) && defined(CONFIG_DEBUG_FS)
 
 void pinconf_generic_dump_pin(struct pinctrl_dev *pctldev,
                               struct seq_file *s, unsigned pin);
diff --git a/drivers/pinctrl/pinctrl-abx500.c b/drivers/pinctrl/pinctrl-abx500.c
index caecdd373061..c542a97c82f3 100644
--- a/drivers/pinctrl/pinctrl-abx500.c
+++ b/drivers/pinctrl/pinctrl-abx500.c
@@ -422,7 +422,7 @@ static u8 abx500_get_mode(struct pinctrl_dev *pctldev, struct gpio_chip *chip,
         }
 
         /* check if pin use AlternateFunction register */
-        if ((af.alt_bit1 == UNUSED) && (af.alt_bit1 == UNUSED))
+        if ((af.alt_bit1 == UNUSED) && (af.alt_bit2 == UNUSED))
                 return mode;
         /*
          * if pin GPIOSEL bit is set and pin supports alternate function,
diff --git a/drivers/pinctrl/pinmux.c b/drivers/pinctrl/pinmux.c
index 1a00658b3ea0..bd83c8b01cd1 100644
--- a/drivers/pinctrl/pinmux.c
+++ b/drivers/pinctrl/pinmux.c
@@ -194,6 +194,11 @@ static const char *pin_free(struct pinctrl_dev *pctldev, int pin,
         }
 
         if (!gpio_range) {
+                /*
+                 * A pin should not be freed more times than allocated.
+                 */
+                if (WARN_ON(!desc->mux_usecount))
+                        return NULL;
                 desc->mux_usecount--;
                 if (desc->mux_usecount)
                         return NULL;
diff --git a/drivers/staging/comedi/drivers/s626.c b/drivers/staging/comedi/drivers/s626.c
index 81a1fe661579..71a73ec5af8d 100644
--- a/drivers/staging/comedi/drivers/s626.c
+++ b/drivers/staging/comedi/drivers/s626.c
@@ -1483,7 +1483,7 @@ static int s626_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
         case TRIG_NONE:
                 /*  continous acquisition */
                 devpriv->ai_continous = 1;
-                devpriv->ai_sample_count = 0;
+                devpriv->ai_sample_count = 1;
                 break;
         }
 
diff --git a/drivers/staging/zcache/Kconfig b/drivers/staging/zcache/Kconfig
index 73582705e8c5..5c3714530961 100644
--- a/drivers/staging/zcache/Kconfig
+++ b/drivers/staging/zcache/Kconfig
@@ -15,7 +15,7 @@ config RAMSTER
         depends on CONFIGFS_FS=y && SYSFS=y && !HIGHMEM && ZCACHE=y
         depends on NET
         # must ensure struct page is 8-byte aligned
-        select HAVE_ALIGNED_STRUCT_PAGE if !64_BIT
+        select HAVE_ALIGNED_STRUCT_PAGE if !64BIT
         default n
         help
           RAMster allows RAM on other machines in a cluster to be utilized
diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c
index 2030b608136d..3243ea790eab 100644
--- a/drivers/target/target_core_transport.c
+++ b/drivers/target/target_core_transport.c
@@ -1139,8 +1139,10 @@ target_setup_cmd_from_cdb(struct se_cmd *cmd, unsigned char *cdb)
                 return ret;
 
         ret = target_check_reservation(cmd);
-        if (ret)
+        if (ret) {
+                cmd->scsi_status = SAM_STAT_RESERVATION_CONFLICT;
                 return ret;
+        }
 
         ret = dev->transport->parse_cdb(cmd);
         if (ret)
diff --git a/drivers/tty/serial/8250/8250.c b/drivers/tty/serial/8250/8250_core.c
index cf6a5383748a..35f9c96aada9 100644
--- a/drivers/tty/serial/8250/8250.c
+++ b/drivers/tty/serial/8250/8250_core.c
@@ -3418,6 +3418,7 @@ MODULE_PARM_DESC(probe_rsa, "Probe I/O ports for RSA");
 #endif
 MODULE_ALIAS_CHARDEV_MAJOR(TTY_MAJOR);
 
+#ifdef CONFIG_SERIAL_8250_DEPRECATED_OPTIONS
 #ifndef MODULE
 /* This module was renamed to 8250_core in 3.7.  Keep the old "8250" name
  * working as well for the module options so we don't break people.  We
@@ -3432,7 +3433,7 @@ MODULE_ALIAS_CHARDEV_MAJOR(TTY_MAJOR);
 static void __used s8250_options(void)
 {
 #undef MODULE_PARAM_PREFIX
-#define MODULE_PARAM_PREFIX "8250."
+#define MODULE_PARAM_PREFIX "8250_core."
 
         module_param_cb(share_irqs, &param_ops_uint, &share_irqs, 0644);
         module_param_cb(nr_uarts, &param_ops_uint, &nr_uarts, 0644);
@@ -3444,5 +3445,6 @@ static void __used s8250_options(void)
 #endif
 }
 #else
-MODULE_ALIAS("8250");
+MODULE_ALIAS("8250_core");
+#endif
 #endif
diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/8250/8250_pci.c
index aa76825229dc..26e3a97ab157 100644
--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -1554,6 +1554,7 @@ pci_wch_ch353_setup(struct serial_private *priv,
 #define PCI_DEVICE_ID_PLX_CRONYX_OMEGA  0xc001
 #define PCI_DEVICE_ID_INTEL_PATSBURG_KT 0x1d3d
 #define PCI_VENDOR_ID_WCH               0x4348
+#define PCI_DEVICE_ID_WCH_CH352_2S      0x3253
 #define PCI_DEVICE_ID_WCH_CH353_4S      0x3453
 #define PCI_DEVICE_ID_WCH_CH353_2S1PF   0x5046
 #define PCI_DEVICE_ID_WCH_CH353_2S1P    0x7053
@@ -2172,6 +2173,14 @@ static struct pci_serial_quirk pci_serial_quirks[] __refdata = {
                 .subdevice      = PCI_ANY_ID,
                 .setup          = pci_wch_ch353_setup,
         },
+        /* WCH CH352 2S card (16550 clone) */
+        {
+                .vendor         = PCI_VENDOR_ID_WCH,
+                .device         = PCI_DEVICE_ID_WCH_CH352_2S,
+                .subvendor      = PCI_ANY_ID,
+                .subdevice      = PCI_ANY_ID,
+                .setup          = pci_wch_ch353_setup,
+        },
         /*
          * ASIX devices with FIFO bug
          */
@@ -4870,6 +4879,10 @@ static struct pci_device_id serial_pci_tbl[] = {
                 PCI_ANY_ID, PCI_ANY_ID,
                 0, 0, pbn_b0_bt_2_115200 },
 
+        {       PCI_VENDOR_ID_WCH, PCI_DEVICE_ID_WCH_CH352_2S,
+                PCI_ANY_ID, PCI_ANY_ID,
+                0, 0, pbn_b0_bt_2_115200 },
+
         /*
          * Commtech, Inc. Fastcom adapters
          */
diff --git a/drivers/tty/serial/8250/Kconfig b/drivers/tty/serial/8250/Kconfig
index 2ef9537bcb2c..80fe91e64a52 100644
--- a/drivers/tty/serial/8250/Kconfig
+++ b/drivers/tty/serial/8250/Kconfig
@@ -33,6 +33,23 @@ config SERIAL_8250
           Most people will say Y or M here, so that they can use serial mice,
           modems and similar devices connecting to the standard serial ports.
 
+config SERIAL_8250_DEPRECATED_OPTIONS
+        bool "Support 8250_core.* kernel options (DEPRECATED)"
+        depends on SERIAL_8250
+        default y
+        ---help---
+          In 3.7 we renamed 8250 to 8250_core by mistake, so now we have to
+          accept kernel parameters in both forms like 8250_core.nr_uarts=4 and
+          8250.nr_uarts=4. We now renamed the module back to 8250, but if
+          anybody noticed in 3.7 and changed their userspace we still have to
+          keep the 8350_core.* options around until they revert the changes
+          they already did.
+
+          If 8250 is built as a module, this adds 8250_core alias instead. 
+
+          If you did not notice yet and/or you have userspace from pre-3.7, it
+          is safe (and recommended) to say N here.
+
 config SERIAL_8250_PNP
         bool "8250/16550 PNP device support" if EXPERT
         depends on SERIAL_8250 && PNP
diff --git a/drivers/tty/serial/8250/Makefile b/drivers/tty/serial/8250/Makefile
index a23838a4d535..36d68d054307 100644
--- a/drivers/tty/serial/8250/Makefile
+++ b/drivers/tty/serial/8250/Makefile
@@ -2,10 +2,10 @@
 # Makefile for the 8250 serial device drivers.
 #
 
-obj-$(CONFIG_SERIAL_8250)               += 8250_core.o
-8250_core-y                             := 8250.o
-8250_core-$(CONFIG_SERIAL_8250_PNP)     += 8250_pnp.o
-8250_core-$(CONFIG_SERIAL_8250_DMA)     += 8250_dma.o
+obj-$(CONFIG_SERIAL_8250)               += 8250.o
+8250-y                                  := 8250_core.o
+8250-$(CONFIG_SERIAL_8250_PNP)          += 8250_pnp.o
+8250-$(CONFIG_SERIAL_8250_DMA)          += 8250_dma.o
 obj-$(CONFIG_SERIAL_8250_GSC)           += 8250_gsc.o
 obj-$(CONFIG_SERIAL_8250_PCI)           += 8250_pci.o
 obj-$(CONFIG_SERIAL_8250_HP300)         += 8250_hp300.o
diff --git a/drivers/tty/serial/atmel_serial.c b/drivers/tty/serial/atmel_serial.c
index d4a7c241b751..3467462869ce 100644
--- a/drivers/tty/serial/atmel_serial.c
+++ b/drivers/tty/serial/atmel_serial.c
@@ -158,7 +158,7 @@ struct atmel_uart_port {
 };
 
 static struct atmel_uart_port atmel_ports[ATMEL_MAX_UART];
-static unsigned long atmel_ports_in_use;
+static DECLARE_BITMAP(atmel_ports_in_use, ATMEL_MAX_UART);
 
 #ifdef SUPPORT_SYSRQ
 static struct console atmel_console;
@@ -1769,15 +1769,14 @@ static int atmel_serial_probe(struct platform_device *pdev)
         if (ret < 0)
                 /* port id not found in platform data nor device-tree aliases:
                  * auto-enumerate it */
-                ret = find_first_zero_bit(&atmel_ports_in_use,
-                                sizeof(atmel_ports_in_use));
+                ret = find_first_zero_bit(atmel_ports_in_use, ATMEL_MAX_UART);
 
-        if (ret > ATMEL_MAX_UART) {
+        if (ret >= ATMEL_MAX_UART) {
                 ret = -ENODEV;
                 goto err;
         }
 
-        if (test_and_set_bit(ret, &atmel_ports_in_use)) {
+        if (test_and_set_bit(ret, atmel_ports_in_use)) {
                 /* port already in use */
                 ret = -EBUSY;
                 goto err;
@@ -1857,7 +1856,7 @@ static int atmel_serial_remove(struct platform_device *pdev)
 
         /* "port" is allocated statically, so we shouldn't free it */
 
-        clear_bit(port->line, &atmel_ports_in_use);
+        clear_bit(port->line, atmel_ports_in_use);
 
         clk_put(atmel_port->clk);
 
diff --git a/drivers/tty/serial/xilinx_uartps.c b/drivers/tty/serial/xilinx_uartps.c
index ba451c7209fc..f36bbba1ac8b 100644
--- a/drivers/tty/serial/xilinx_uartps.c
+++ b/drivers/tty/serial/xilinx_uartps.c
@@ -578,6 +578,8 @@ static int xuartps_startup(struct uart_port *port)
         /* Receive Timeout register is enabled with value of 10 */
         xuartps_writel(10, XUARTPS_RXTOUT_OFFSET);
 
+        /* Clear out any pending interrupts before enabling them */
+        xuartps_writel(xuartps_readl(XUARTPS_ISR_OFFSET), XUARTPS_ISR_OFFSET);
 
         /* Set the Interrupt Registers with desired interrupts */
         xuartps_writel(XUARTPS_IXR_TXEMPTY | XUARTPS_IXR_PARITY |
diff --git a/drivers/tty/vt/vc_screen.c b/drivers/tty/vt/vc_screen.c
index e4ca345873c3..d7799deacb21 100644
--- a/drivers/tty/vt/vc_screen.c
+++ b/drivers/tty/vt/vc_screen.c
@@ -93,7 +93,7 @@ vcs_poll_data_free(struct vcs_poll_data *poll)
 static struct vcs_poll_data *
 vcs_poll_data_get(struct file *file)
 {
-        struct vcs_poll_data *poll = file->private_data;
+        struct vcs_poll_data *poll = file->private_data, *kill = NULL;
 
         if (poll)
                 return poll;
@@ -122,10 +122,12 @@ vcs_poll_data_get(struct file *file)
                 file->private_data = poll;
         } else {
                 /* someone else raced ahead of us */
-                vcs_poll_data_free(poll);
+                kill = poll;
                 poll = file->private_data;
         }
         spin_unlock(&file->f_lock);
+        if (kill)
+                vcs_poll_data_free(kill);
 
         return poll;
 }
diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
index 99b34a30354f..f9ec44cbb82f 100644
--- a/drivers/usb/core/hcd.c
+++ b/drivers/usb/core/hcd.c
@@ -2412,6 +2412,14 @@ int usb_hcd_is_primary_hcd(struct usb_hcd *hcd)
 }
 EXPORT_SYMBOL_GPL(usb_hcd_is_primary_hcd);
 
+int usb_hcd_find_raw_port_number(struct usb_hcd *hcd, int port1)
+{
+        if (!hcd->driver->find_raw_port_number)
+                return port1;
+
+        return hcd->driver->find_raw_port_number(hcd, port1);
+}
+
 static int usb_hcd_request_irqs(struct usb_hcd *hcd,
                 unsigned int irqnum, unsigned long irqflags)
 {
diff --git a/drivers/usb/core/usb-acpi.c b/drivers/usb/core/usb-acpi.c
index b6f4bad3f756..255c14464bf2 100644
--- a/drivers/usb/core/usb-acpi.c
+++ b/drivers/usb/core/usb-acpi.c
@@ -15,6 +15,7 @@
 #include <linux/kernel.h>
 #include <linux/acpi.h>
 #include <linux/pci.h>
+#include <linux/usb/hcd.h>
 #include <acpi/acpi_bus.h>
 
 #include "usb.h"
@@ -188,8 +189,13 @@ static int usb_acpi_find_device(struct device *dev, acpi_handle *handle)
                  * connected to.
                  */
                 if (!udev->parent) {
-                        *handle = acpi_get_child(DEVICE_ACPI_HANDLE(&udev->dev),
+                        struct usb_hcd *hcd = bus_to_hcd(udev->bus);
+                        int raw_port_num;
+
+                        raw_port_num = usb_hcd_find_raw_port_number(hcd,
                                 port_num);
+                        *handle = acpi_get_child(DEVICE_ACPI_HANDLE(&udev->dev),
+                                raw_port_num);
                         if (!*handle)
                                 return -ENODEV;
                 } else {
diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig
index 5a0c541daf89..c7525b1cad74 100644
--- a/drivers/usb/gadget/Kconfig
+++ b/drivers/usb/gadget/Kconfig
@@ -145,6 +145,7 @@ config USB_LPC32XX
         tristate "LPC32XX USB Peripheral Controller"
         depends on ARCH_LPC32XX
         select USB_ISP1301
+        select USB_OTG_UTILS
         help
            This option selects the USB device controller in the LPC32xx SoC.
 
diff --git a/drivers/usb/host/ehci-sched.c b/drivers/usb/host/ehci-sched.c
index b476daf49f6f..010f686d8881 100644
--- a/drivers/usb/host/ehci-sched.c
+++ b/drivers/usb/host/ehci-sched.c
@@ -1214,6 +1214,7 @@ itd_urb_transaction (
 
                 memset (itd, 0, sizeof *itd);
                 itd->itd_dma = itd_dma;
+                itd->frame = 9999;              /* an invalid value */
                 list_add (&itd->itd_list, &sched->td_list);
         }
         spin_unlock_irqrestore (&ehci->lock, flags);
@@ -1915,6 +1916,7 @@ sitd_urb_transaction (
 
                 memset (sitd, 0, sizeof *sitd);
                 sitd->sitd_dma = sitd_dma;
+                sitd->frame = 9999;             /* an invalid value */
                 list_add (&sitd->sitd_list, &iso_sched->td_list);
         }
 
diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c
index 35616ffbe3ae..6dc238c592bc 100644
--- a/drivers/usb/host/xhci-mem.c
+++ b/drivers/usb/host/xhci-mem.c
@@ -1022,44 +1022,24 @@ void xhci_copy_ep0_dequeue_into_input_ctx(struct xhci_hcd *xhci,
  * is attached to (or the roothub port its ancestor hub is attached to).  All we
  * know is the index of that port under either the USB 2.0 or the USB 3.0
  * roothub, but that doesn't give us the real index into the HW port status
- * registers.  Scan through the xHCI roothub port array, looking for the Nth
- * entry of the correct port speed.  Return the port number of that entry.
+ * registers. Call xhci_find_raw_port_number() to get real index.
  */
 static u32 xhci_find_real_port_number(struct xhci_hcd *xhci,
                 struct usb_device *udev)
 {
         struct usb_device *top_dev;
-        unsigned int num_similar_speed_ports;
-        unsigned int faked_port_num;
-        int i;
+        struct usb_hcd *hcd;
+
+        if (udev->speed == USB_SPEED_SUPER)
+                hcd = xhci->shared_hcd;
+        else
+                hcd = xhci->main_hcd;
 
         for (top_dev = udev; top_dev->parent && top_dev->parent->parent;
                         top_dev = top_dev->parent)
                 /* Found device below root hub */;
-        faked_port_num = top_dev->portnum;
-        for (i = 0, num_similar_speed_ports = 0;
-                        i < HCS_MAX_PORTS(xhci->hcs_params1); i++) {
-                u8 port_speed = xhci->port_array[i];
-
-                /*
-                 * Skip ports that don't have known speeds, or have duplicate
-                 * Extended Capabilities port speed entries.
-                 */
-                if (port_speed == 0 || port_speed == DUPLICATE_ENTRY)
-                        continue;
 
-                /*
-                 * USB 3.0 ports are always under a USB 3.0 hub.  USB 2.0 and
-                 * 1.1 ports are under the USB 2.0 hub.  If the port speed
-                 * matches the device speed, it's a similar speed port.
-                 */
-                if ((port_speed == 0x03) == (udev->speed == USB_SPEED_SUPER))
-                        num_similar_speed_ports++;
-                if (num_similar_speed_ports == faked_port_num)
-                        /* Roothub ports are numbered from 1 to N */
-                        return i+1;
-        }
-        return 0;
+        return  xhci_find_raw_port_number(hcd, top_dev->portnum);
 }
 
 /* Setup an xHCI virtual device for a Set Address command */
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index af259e0ec172..1a30c380043c 100644
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -313,6 +313,7 @@ static const struct hc_driver xhci_pci_hc_driver = {
         .set_usb2_hw_lpm =      xhci_set_usb2_hardware_lpm,
         .enable_usb3_lpm_timeout =      xhci_enable_usb3_lpm_timeout,
         .disable_usb3_lpm_timeout =     xhci_disable_usb3_lpm_timeout,
+        .find_raw_port_number = xhci_find_raw_port_number,
 };
 
 /*-------------------------------------------------------------------------*/
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index 882875465301..1969c001b3f9 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -1599,14 +1599,20 @@ static void handle_port_status(struct xhci_hcd *xhci,
         max_ports = HCS_MAX_PORTS(xhci->hcs_params1);
         if ((port_id <= 0) || (port_id > max_ports)) {
                 xhci_warn(xhci, "Invalid port id %d\n", port_id);
-                bogus_port_status = true;
-                goto cleanup;
+                inc_deq(xhci, xhci->event_ring);
+                return;
         }
 
         /* Figure out which usb_hcd this port is attached to:
          * is it a USB 3.0 port or a USB 2.0/1.1 port?
          */
         major_revision = xhci->port_array[port_id - 1];
+
+        /* Find the right roothub. */
+        hcd = xhci_to_hcd(xhci);
+        if ((major_revision == 0x03) != (hcd->speed == HCD_USB3))
+                hcd = xhci->shared_hcd;
+
         if (major_revision == 0) {
                 xhci_warn(xhci, "Event for port %u not in "
                                 "Extended Capabilities, ignoring.\n",
@@ -1629,10 +1635,6 @@ static void handle_port_status(struct xhci_hcd *xhci,
          * into the index into the ports on the correct split roothub, and the
          * correct bus_state structure.
          */
-        /* Find the right roothub. */
-        hcd = xhci_to_hcd(xhci);
-        if ((major_revision == 0x03) != (hcd->speed == HCD_USB3))
-                hcd = xhci->shared_hcd;
         bus_state = &xhci->bus_state[hcd_index(hcd)];
         if (hcd->speed == HCD_USB3)
                 port_array = xhci->usb3_ports;
@@ -2027,8 +2029,8 @@ static int process_ctrl_td(struct xhci_hcd *xhci, struct xhci_td *td,
                 if (event_trb != ep_ring->dequeue &&
                                 event_trb != td->last_trb)
                         td->urb->actual_length =
-                                td->urb->transfer_buffer_length
-                                - TRB_LEN(le32_to_cpu(event->transfer_len));
+                                td->urb->transfer_buffer_length -
+                                EVENT_TRB_LEN(le32_to_cpu(event->transfer_len));
                 else
                         td->urb->actual_length = 0;
 
@@ -2060,7 +2062,7 @@ static int process_ctrl_td(struct xhci_hcd *xhci, struct xhci_td *td,
                 /* Maybe the event was for the data stage? */
                         td->urb->actual_length =
                                 td->urb->transfer_buffer_length -
-                                TRB_LEN(le32_to_cpu(event->transfer_len));
+                                EVENT_TRB_LEN(le32_to_cpu(event->transfer_len));
                         xhci_dbg(xhci, "Waiting for status "
                                         "stage event\n");
                         return 0;
@@ -2096,7 +2098,7 @@ static int process_isoc_td(struct xhci_hcd *xhci, struct xhci_td *td,
         /* handle completion code */
         switch (trb_comp_code) {
         case COMP_SUCCESS:
-                if (TRB_LEN(le32_to_cpu(event->transfer_len)) == 0) {
+                if (EVENT_TRB_LEN(le32_to_cpu(event->transfer_len)) == 0) {
                         frame->status = 0;
                         break;
                 }
@@ -2141,7 +2143,7 @@ static int process_isoc_td(struct xhci_hcd *xhci, struct xhci_td *td,
                                 len += TRB_LEN(le32_to_cpu(cur_trb->generic.field[2]));
                 }
                 len += TRB_LEN(le32_to_cpu(cur_trb->generic.field[2])) -
-                        TRB_LEN(le32_to_cpu(event->transfer_len));
+                        EVENT_TRB_LEN(le32_to_cpu(event->transfer_len));
 
                 if (trb_comp_code != COMP_STOP_INVAL) {
                         frame->actual_length = len;
@@ -2199,7 +2201,7 @@ static int process_bulk_intr_td(struct xhci_hcd *xhci, struct xhci_td *td,
         case COMP_SUCCESS:
                 /* Double check that the HW transferred everything. */
                 if (event_trb != td->last_trb ||
-                                TRB_LEN(le32_to_cpu(event->transfer_len)) != 0) {
+                    EVENT_TRB_LEN(le32_to_cpu(event->transfer_len)) != 0) {
                         xhci_warn(xhci, "WARN Successful completion "
                                         "on short TX\n");
                         if (td->urb->transfer_flags & URB_SHORT_NOT_OK)
@@ -2227,18 +2229,18 @@ static int process_bulk_intr_td(struct xhci_hcd *xhci, struct xhci_td *td,
                                 "%d bytes untransferred\n",
                                 td->urb->ep->desc.bEndpointAddress,
                                 td->urb->transfer_buffer_length,
-                                TRB_LEN(le32_to_cpu(event->transfer_len)));
+                                EVENT_TRB_LEN(le32_to_cpu(event->transfer_len)));
         /* Fast path - was this the last TRB in the TD for this URB? */
         if (event_trb == td->last_trb) {
-                if (TRB_LEN(le32_to_cpu(event->transfer_len)) != 0) {
+                if (EVENT_TRB_LEN(le32_to_cpu(event->transfer_len)) != 0) {
                         td->urb->actual_length =
                                 td->urb->transfer_buffer_length -
-                                TRB_LEN(le32_to_cpu(event->transfer_len));
+                                EVENT_TRB_LEN(le32_to_cpu(event->transfer_len));
                         if (td->urb->transfer_buffer_length <
                                         td->urb->actual_length) {
                                 xhci_warn(xhci, "HC gave bad length "
                                                 "of %d bytes left\n",
-                                          TRB_LEN(le32_to_cpu(event->transfer_len)));
+                                          EVENT_TRB_LEN(le32_to_cpu(event->transfer_len)));
                                 td->urb->actual_length = 0;
                                 if (td->urb->transfer_flags & URB_SHORT_NOT_OK)
                                         *status = -EREMOTEIO;
@@ -2280,7 +2282,7 @@ static int process_bulk_intr_td(struct xhci_hcd *xhci, struct xhci_td *td,
                 if (trb_comp_code != COMP_STOP_INVAL)
                         td->urb->actual_length +=
                                 TRB_LEN(le32_to_cpu(cur_trb->generic.field[2])) -
-                                TRB_LEN(le32_to_cpu(event->transfer_len));
+                                EVENT_TRB_LEN(le32_to_cpu(event->transfer_len));
         }
 
         return finish_td(xhci, td, event_trb, event, ep, status, false);
@@ -2368,7 +2370,7 @@ static int handle_tx_event(struct xhci_hcd *xhci,
          * transfer type
          */
         case COMP_SUCCESS:
-                if (TRB_LEN(le32_to_cpu(event->transfer_len)) == 0)
+                if (EVENT_TRB_LEN(le32_to_cpu(event->transfer_len)) == 0)
                         break;
                 if (xhci->quirks & XHCI_TRUST_TX_LENGTH)
                         trb_comp_code = COMP_SHORT_TX;
@@ -2461,14 +2463,21 @@ static int handle_tx_event(struct xhci_hcd *xhci,
                  * TD list.
                  */
                 if (list_empty(&ep_ring->td_list)) {
-                        xhci_warn(xhci, "WARN Event TRB for slot %d ep %d "
-                                        "with no TDs queued?\n",
-                                  TRB_TO_SLOT_ID(le32_to_cpu(event->flags)),
-                                  ep_index);
-                        xhci_dbg(xhci, "Event TRB with TRB type ID %u\n",
-                                 (le32_to_cpu(event->flags) &
-                                  TRB_TYPE_BITMASK)>>10);
-                        xhci_print_trb_offsets(xhci, (union xhci_trb *) event);
+                        /*
+                         * A stopped endpoint may generate an extra completion
+                         * event if the device was suspended.  Don't print
+                         * warnings.
+                         */
+                        if (!(trb_comp_code == COMP_STOP ||
+                                                trb_comp_code == COMP_STOP_INVAL)) {
+                                xhci_warn(xhci, "WARN Event TRB for slot %d ep %d with no TDs queued?\n",
+                                                TRB_TO_SLOT_ID(le32_to_cpu(event->flags)),
+                                                ep_index);
+                                xhci_dbg(xhci, "Event TRB with TRB type ID %u\n",
+                                                (le32_to_cpu(event->flags) &
+                                                 TRB_TYPE_BITMASK)>>10);
+                                xhci_print_trb_offsets(xhci, (union xhci_trb *) event);
+                        }
                         if (ep->skip) {
                                 ep->skip = false;
                                 xhci_dbg(xhci, "td_list is empty while skip "
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index 849470b18831..53b8f89a0b1c 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -3779,6 +3779,28 @@ int xhci_address_device(struct usb_hcd *hcd, struct usb_device *udev)
         return 0;
 }
 
+/*
+ * Transfer the port index into real index in the HW port status
+ * registers. Caculate offset between the port's PORTSC register
+ * and port status base. Divide the number of per port register
+ * to get the real index. The raw port number bases 1.
+ */
+int xhci_find_raw_port_number(struct usb_hcd *hcd, int port1)
+{
+        struct xhci_hcd *xhci = hcd_to_xhci(hcd);
+        __le32 __iomem *base_addr = &xhci->op_regs->port_status_base;
+        __le32 __iomem *addr;
+        int raw_port;
+
+        if (hcd->speed != HCD_USB3)
+                addr = xhci->usb2_ports[port1 - 1];
+        else
+                addr = xhci->usb3_ports[port1 - 1];
+
+        raw_port = (addr - base_addr)/NUM_PORT_REGS + 1;
+        return raw_port;
+}
+
 #ifdef CONFIG_USB_SUSPEND
 
 /* BESL to HIRD Encoding array for USB2 LPM */
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index 2c510e4a7d4c..63582719e0fb 100644
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -972,6 +972,10 @@ struct xhci_transfer_event {
         __le32  flags;
 };
 
+/* Transfer event TRB length bit mask */
+/* bits 0:23 */
+#define EVENT_TRB_LEN(p)                ((p) & 0xffffff)
+
 /** Transfer Event bit fields **/
 #define TRB_TO_EP_ID(p) (((p) >> 16) & 0x1f)
 
@@ -1829,6 +1833,7 @@ void xhci_test_and_clear_bit(struct xhci_hcd *xhci, __le32 __iomem **port_array,
 int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, u16 wIndex,
                 char *buf, u16 wLength);
 int xhci_hub_status_data(struct usb_hcd *hcd, char *buf);
+int xhci_find_raw_port_number(struct usb_hcd *hcd, int port1);
 
 #ifdef CONFIG_PM
 int xhci_bus_suspend(struct usb_hcd *hcd);
diff --git a/drivers/usb/phy/Kconfig b/drivers/usb/phy/Kconfig
index 65217a590068..90549382eba5 100644
--- a/drivers/usb/phy/Kconfig
+++ b/drivers/usb/phy/Kconfig
@@ -38,6 +38,7 @@ config USB_ISP1301
         tristate "NXP ISP1301 USB transceiver support"
         depends on USB || USB_GADGET
         depends on I2C
+        select USB_OTG_UTILS
         help
           Say Y here to add support for the NXP ISP1301 USB transceiver driver.
           This chip is typically used as USB transceiver for USB host, gadget
diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index d4809d551473..9886180e45f1 100644
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -640,6 +640,7 @@ static struct usb_device_id id_table_combined [] = {
         { USB_DEVICE(FTDI_VID, FTDI_RM_CANVIEW_PID) },
         { USB_DEVICE(ACTON_VID, ACTON_SPECTRAPRO_PID) },
         { USB_DEVICE(CONTEC_VID, CONTEC_COM1USBH_PID) },
+        { USB_DEVICE(MITSUBISHI_VID, MITSUBISHI_FXUSB_PID) },
         { USB_DEVICE(BANDB_VID, BANDB_USOTL4_PID) },
         { USB_DEVICE(BANDB_VID, BANDB_USTL4_PID) },
         { USB_DEVICE(BANDB_VID, BANDB_USO9ML2_PID) },
diff --git a/drivers/usb/serial/ftdi_sio_ids.h b/drivers/usb/serial/ftdi_sio_ids.h
index 9d359e189a64..e79861eeed4c 100644
--- a/drivers/usb/serial/ftdi_sio_ids.h
+++ b/drivers/usb/serial/ftdi_sio_ids.h
@@ -584,6 +584,13 @@
 #define CONTEC_COM1USBH_PID     0x8311  /* COM-1(USB)H */
 
 /*
+ * Mitsubishi Electric Corp. (http://www.meau.com)
+ * Submitted by Konstantin Holoborodko
+ */
+#define MITSUBISHI_VID          0x06D3
+#define MITSUBISHI_FXUSB_PID    0x0284 /* USB/RS422 converters: FX-USB-AW/-BD */
+
+/*
  * Definitions for B&B Electronics products.
  */
 #define BANDB_VID               0x0856  /* B&B Electronics Vendor ID */
diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c
index 2e70efa08b77..5d9b178484fd 100644
--- a/drivers/usb/serial/usb-serial.c
+++ b/drivers/usb/serial/usb-serial.c
@@ -903,6 +903,7 @@ static int usb_serial_probe(struct usb_interface *interface,
                 port->port.ops = &serial_port_ops;
                 port->serial = serial;
                 spin_lock_init(&port->lock);
+                init_waitqueue_head(&port->delta_msr_wait);
                 /* Keep this for private driver use for the moment but
                    should probably go away */
                 INIT_WORK(&port->work, usb_serial_port_work);
diff --git a/drivers/vhost/tcm_vhost.c b/drivers/vhost/tcm_vhost.c
index 43fb11ee2e8d..2968b4934659 100644
--- a/drivers/vhost/tcm_vhost.c
+++ b/drivers/vhost/tcm_vhost.c
@@ -60,6 +60,15 @@ enum {
         VHOST_SCSI_VQ_IO = 2,
 };
 
+/*
+ * VIRTIO_RING_F_EVENT_IDX seems broken. Not sure the bug is in
+ * kernel but disabling it helps.
+ * TODO: debug and remove the workaround.
+ */
+enum {
+        VHOST_SCSI_FEATURES = VHOST_FEATURES & (~VIRTIO_RING_F_EVENT_IDX)
+};
+
 #define VHOST_SCSI_MAX_TARGET   256
 #define VHOST_SCSI_MAX_VQ       128
 
@@ -946,7 +955,7 @@ static void vhost_scsi_flush(struct vhost_scsi *vs)
 
 static int vhost_scsi_set_features(struct vhost_scsi *vs, u64 features)
 {
-        if (features & ~VHOST_FEATURES)
+        if (features & ~VHOST_SCSI_FEATURES)
                 return -EOPNOTSUPP;
 
         mutex_lock(&vs->dev.mutex);
@@ -992,7 +1001,7 @@ static long vhost_scsi_ioctl(struct file *f, unsigned int ioctl,
                         return -EFAULT;
                 return 0;
         case VHOST_GET_FEATURES:
-                features = VHOST_FEATURES;
+                features = VHOST_SCSI_FEATURES;
                 if (copy_to_user(featurep, &features, sizeof features))
                         return -EFAULT;
                 return 0;
diff --git a/drivers/video/mxsfb.c b/drivers/video/mxsfb.c
index 755556ca5b2d..45169cbaba6e 100644
--- a/drivers/video/mxsfb.c
+++ b/drivers/video/mxsfb.c
@@ -169,6 +169,7 @@ struct mxsfb_info {
         unsigned dotclk_delay;
         const struct mxsfb_devdata *devdata;
         int mapped;
+        u32 sync;
 };
 
 #define mxsfb_is_v3(host) (host->devdata->ipversion == 3)
@@ -456,9 +457,9 @@ static int mxsfb_set_par(struct fb_info *fb_info)
                 vdctrl0 |= VDCTRL0_HSYNC_ACT_HIGH;
         if (fb_info->var.sync & FB_SYNC_VERT_HIGH_ACT)
                 vdctrl0 |= VDCTRL0_VSYNC_ACT_HIGH;
-        if (fb_info->var.sync & FB_SYNC_DATA_ENABLE_HIGH_ACT)
+        if (host->sync & MXSFB_SYNC_DATA_ENABLE_HIGH_ACT)
                 vdctrl0 |= VDCTRL0_ENABLE_ACT_HIGH;
-        if (fb_info->var.sync & FB_SYNC_DOTCLK_FAILING_ACT)
+        if (host->sync & MXSFB_SYNC_DOTCLK_FAILING_ACT)
                 vdctrl0 |= VDCTRL0_DOTCLK_ACT_FAILING;
 
         writel(vdctrl0, host->base + LCDC_VDCTRL0);
@@ -861,6 +862,8 @@ static int mxsfb_probe(struct platform_device *pdev)
 
         INIT_LIST_HEAD(&fb_info->modelist);
 
+        host->sync = pdata->sync;
+
         ret = mxsfb_init_fbinfo(host);
         if (ret != 0)
                 goto error_init_fb;
diff --git a/drivers/video/omap/omapfb_main.c b/drivers/video/omap/omapfb_main.c
index e31f5b33b501..d40612c31a98 100644
--- a/drivers/video/omap/omapfb_main.c
+++ b/drivers/video/omap/omapfb_main.c
@@ -32,6 +32,8 @@
 
 #include <linux/omap-dma.h>
 
+#include <mach/hardware.h>
+
 #include "omapfb.h"
 #include "lcdc.h"
 
diff --git a/drivers/video/omap2/displays/panel-tpo-td043mtea1.c b/drivers/video/omap2/displays/panel-tpo-td043mtea1.c
index 6b6643911d29..048c98381ef6 100644
--- a/drivers/video/omap2/displays/panel-tpo-td043mtea1.c
+++ b/drivers/video/omap2/displays/panel-tpo-td043mtea1.c
@@ -63,6 +63,9 @@ struct tpo_td043_device {
         u32 power_on_resume:1;
 };
 
+/* used to pass spi_device from SPI to DSS portion of the driver */
+static struct tpo_td043_device *g_tpo_td043;
+
 static int tpo_td043_write(struct spi_device *spi, u8 addr, u8 data)
 {
         struct spi_message      m;
@@ -403,7 +406,7 @@ static void tpo_td043_disable(struct omap_dss_device *dssdev)
 
 static int tpo_td043_probe(struct omap_dss_device *dssdev)
 {
-        struct tpo_td043_device *tpo_td043 = dev_get_drvdata(&dssdev->dev);
+        struct tpo_td043_device *tpo_td043 = g_tpo_td043;
         int nreset_gpio = dssdev->reset_gpio;
         int ret = 0;
 
@@ -440,6 +443,8 @@ static int tpo_td043_probe(struct omap_dss_device *dssdev)
         if (ret)
                 dev_warn(&dssdev->dev, "failed to create sysfs files\n");
 
+        dev_set_drvdata(&dssdev->dev, tpo_td043);
+
         return 0;
 
 fail_gpio_req:
@@ -505,6 +510,9 @@ static int tpo_td043_spi_probe(struct spi_device *spi)
                 return -ENODEV;
         }
 
+        if (g_tpo_td043 != NULL)
+                return -EBUSY;
+
         spi->bits_per_word = 16;
         spi->mode = SPI_MODE_0;
 
@@ -521,7 +529,7 @@ static int tpo_td043_spi_probe(struct spi_device *spi)
         tpo_td043->spi = spi;
         tpo_td043->nreset_gpio = dssdev->reset_gpio;
         dev_set_drvdata(&spi->dev, tpo_td043);
-        dev_set_drvdata(&dssdev->dev, tpo_td043);
+        g_tpo_td043 = tpo_td043;
 
         omap_dss_register_driver(&tpo_td043_driver);
 
@@ -534,6 +542,7 @@ static int tpo_td043_spi_remove(struct spi_device *spi)
 
         omap_dss_unregister_driver(&tpo_td043_driver);
         kfree(tpo_td043);
+        g_tpo_td043 = NULL;
 
         return 0;
 }
diff --git a/drivers/video/omap2/dss/dss_features.c b/drivers/video/omap2/dss/dss_features.c
index d7d66ef5cb58..7f791aeda4d2 100644
--- a/drivers/video/omap2/dss/dss_features.c
+++ b/drivers/video/omap2/dss/dss_features.c
@@ -202,12 +202,10 @@ static const enum omap_dss_output_id omap3630_dss_supported_outputs[] = {
 
 static const enum omap_dss_output_id omap4_dss_supported_outputs[] = {
         /* OMAP_DSS_CHANNEL_LCD */
-        OMAP_DSS_OUTPUT_DPI | OMAP_DSS_OUTPUT_DBI |
-        OMAP_DSS_OUTPUT_DSI1,
+        OMAP_DSS_OUTPUT_DBI | OMAP_DSS_OUTPUT_DSI1,
 
         /* OMAP_DSS_CHANNEL_DIGIT */
-        OMAP_DSS_OUTPUT_VENC | OMAP_DSS_OUTPUT_HDMI |
-        OMAP_DSS_OUTPUT_DPI,
+        OMAP_DSS_OUTPUT_VENC | OMAP_DSS_OUTPUT_HDMI,
 
         /* OMAP_DSS_CHANNEL_LCD2 */
         OMAP_DSS_OUTPUT_DPI | OMAP_DSS_OUTPUT_DBI |
diff --git a/drivers/xen/Kconfig b/drivers/xen/Kconfig
index 5a32232cf7c1..67af155cf602 100644
--- a/drivers/xen/Kconfig
+++ b/drivers/xen/Kconfig
@@ -182,7 +182,7 @@ config XEN_PRIVCMD
 
 config XEN_STUB
         bool "Xen stub drivers"
-        depends on XEN && X86_64
+        depends on XEN && X86_64 && BROKEN
         default n
         help
           Allow kernel to install stub drivers, to reserve space for Xen drivers,
diff --git a/drivers/xen/events.c b/drivers/xen/events.c
index d17aa41a9041..aa85881d17b2 100644
--- a/drivers/xen/events.c
+++ b/drivers/xen/events.c
@@ -403,11 +403,23 @@ static void unmask_evtchn(int port)
 
         if (unlikely((cpu != cpu_from_evtchn(port))))
                 do_hypercall = 1;
-        else
+        else {
+                /*
+                 * Need to clear the mask before checking pending to
+                 * avoid a race with an event becoming pending.
+                 *
+                 * EVTCHNOP_unmask will only trigger an upcall if the
+                 * mask bit was set, so if a hypercall is needed
+                 * remask the event.
+                 */
+                sync_clear_bit(port, BM(&s->evtchn_mask[0]));
                 evtchn_pending = sync_test_bit(port, BM(&s->evtchn_pending[0]));
 
-        if (unlikely(evtchn_pending && xen_hvm_domain()))
-                do_hypercall = 1;
+                if (unlikely(evtchn_pending && xen_hvm_domain())) {
+                        sync_set_bit(port, BM(&s->evtchn_mask[0]));
+                        do_hypercall = 1;
+                }
+        }
 
         /* Slow path (hypercall) if this is a non-local port or if this is
          * an hvm domain and an event is pending (hvm domains don't have
@@ -418,8 +430,6 @@ static void unmask_evtchn(int port)
         } else {
                 struct vcpu_info *vcpu_info = __this_cpu_read(xen_vcpu);
 
-                sync_clear_bit(port, BM(&s->evtchn_mask[0]));
-
                 /*
                  * The following is basically the equivalent of
                  * 'hw_resend_irq'. Just like a real IO-APIC we 'lose
diff --git a/drivers/xen/fallback.c b/drivers/xen/fallback.c
index 0ef7c4d40f86..b04fb64c5a91 100644
--- a/drivers/xen/fallback.c
+++ b/drivers/xen/fallback.c
@@ -44,7 +44,7 @@ int xen_event_channel_op_compat(int cmd, void *arg)
 }
 EXPORT_SYMBOL_GPL(xen_event_channel_op_compat);
 
-int HYPERVISOR_physdev_op_compat(int cmd, void *arg)
+int xen_physdev_op_compat(int cmd, void *arg)
 {
         struct physdev_op op;
         int rc;
@@ -78,3 +78,4 @@ int HYPERVISOR_physdev_op_compat(int cmd, void *arg)
 
         return rc;
 }
+EXPORT_SYMBOL_GPL(xen_physdev_op_compat);
diff --git a/drivers/xen/xen-acpi-processor.c b/drivers/xen/xen-acpi-processor.c
index f3278a6603ca..90e34ac7e522 100644
--- a/drivers/xen/xen-acpi-processor.c
+++ b/drivers/xen/xen-acpi-processor.c
@@ -505,6 +505,9 @@ static int __init xen_acpi_processor_init(void)
 
                 pr = per_cpu(processors, i);
                 perf = per_cpu_ptr(acpi_perf_data, i);
+                if (!pr)
+                        continue;
+
                 pr->performance = perf;
                 rc = acpi_processor_get_performance_info(pr);
                 if (rc)
diff --git a/drivers/xen/xen-pciback/pci_stub.c b/drivers/xen/xen-pciback/pci_stub.c
index 9204126f1560..a2278ba7fb27 100644
--- a/drivers/xen/xen-pciback/pci_stub.c
+++ b/drivers/xen/xen-pciback/pci_stub.c
@@ -17,6 +17,7 @@
 #include <xen/events.h>
 #include <asm/xen/pci.h>
 #include <asm/xen/hypervisor.h>
+#include <xen/interface/physdev.h>
 #include "pciback.h"
 #include "conf_space.h"
 #include "conf_space_quirks.h"
@@ -85,37 +86,52 @@ static struct pcistub_device *pcistub_device_alloc(struct pci_dev *dev)
 static void pcistub_device_release(struct kref *kref)
 {
         struct pcistub_device *psdev;
+        struct pci_dev *dev;
         struct xen_pcibk_dev_data *dev_data;
 
         psdev = container_of(kref, struct pcistub_device, kref);
-        dev_data = pci_get_drvdata(psdev->dev);
+        dev = psdev->dev;
+        dev_data = pci_get_drvdata(dev);
 
-        dev_dbg(&psdev->dev->dev, "pcistub_device_release\n");
+        dev_dbg(&dev->dev, "pcistub_device_release\n");
 
-        xen_unregister_device_domain_owner(psdev->dev);
+        xen_unregister_device_domain_owner(dev);
 
         /* Call the reset function which does not take lock as this
          * is called from "unbind" which takes a device_lock mutex.
          */
-        __pci_reset_function_locked(psdev->dev);
-        if (pci_load_and_free_saved_state(psdev->dev,
-                                          &dev_data->pci_saved_state)) {
-                dev_dbg(&psdev->dev->dev, "Could not reload PCI state\n");
-        } else
-                pci_restore_state(psdev->dev);
+        __pci_reset_function_locked(dev);
+        if (pci_load_and_free_saved_state(dev, &dev_data->pci_saved_state))
+                dev_dbg(&dev->dev, "Could not reload PCI state\n");
+        else
+                pci_restore_state(dev);
+
+        if (pci_find_capability(dev, PCI_CAP_ID_MSIX)) {
+                struct physdev_pci_device ppdev = {
+                        .seg = pci_domain_nr(dev->bus),
+                        .bus = dev->bus->number,
+                        .devfn = dev->devfn
+                };
+                int err = HYPERVISOR_physdev_op(PHYSDEVOP_release_msix,
+                                                &ppdev);
+
+                if (err)
+                        dev_warn(&dev->dev, "MSI-X release failed (%d)\n",
+                                 err);
+        }
 
         /* Disable the device */
-        xen_pcibk_reset_device(psdev->dev);
+        xen_pcibk_reset_device(dev);
 
         kfree(dev_data);
-        pci_set_drvdata(psdev->dev, NULL);
+        pci_set_drvdata(dev, NULL);
 
         /* Clean-up the device */
-        xen_pcibk_config_free_dyn_fields(psdev->dev);
-        xen_pcibk_config_free_dev(psdev->dev);
+        xen_pcibk_config_free_dyn_fields(dev);
+        xen_pcibk_config_free_dev(dev);
 
-        psdev->dev->dev_flags &= ~PCI_DEV_FLAGS_ASSIGNED;
-        pci_dev_put(psdev->dev);
+        dev->dev_flags &= ~PCI_DEV_FLAGS_ASSIGNED;
+        pci_dev_put(dev);
 
         kfree(psdev);
 }
@@ -355,6 +371,19 @@ static int pcistub_init_device(struct pci_dev *dev)
         if (err)
                 goto config_release;
 
+        if (pci_find_capability(dev, PCI_CAP_ID_MSIX)) {
+                struct physdev_pci_device ppdev = {
+                        .seg = pci_domain_nr(dev->bus),
+                        .bus = dev->bus->number,
+                        .devfn = dev->devfn
+                };
+
+                err = HYPERVISOR_physdev_op(PHYSDEVOP_prepare_msix, &ppdev);
+                if (err)
+                        dev_err(&dev->dev, "MSI-X preparation failed (%d)\n",
+                                err);
+        }
+
         /* We need the device active to save the state. */
         dev_dbg(&dev->dev, "save state of device\n");
         pci_save_state(dev);
diff --git a/firmware/Makefile b/firmware/Makefile
index cbb09ce9730a..5d8ee1319b5c 100644
--- a/firmware/Makefile
+++ b/firmware/Makefile
@@ -82,7 +82,7 @@ fw-shipped-$(CONFIG_SCSI_ADVANSYS) += advansys/mcode.bin advansys/38C1600.bin \
 fw-shipped-$(CONFIG_SCSI_QLOGIC_1280) += qlogic/1040.bin qlogic/1280.bin \
                                          qlogic/12160.bin
 fw-shipped-$(CONFIG_SCSI_QLOGICPTI) += qlogic/isp1000.bin
-fw-shipped-$(CONFIG_INFINIBAND_QIB) += qlogic/sd7220.fw
+fw-shipped-$(CONFIG_INFINIBAND_QIB) += intel/sd7220.fw
 fw-shipped-$(CONFIG_SND_KORG1212) += korg/k1212.dsp
 fw-shipped-$(CONFIG_SND_MAESTRO3) += ess/maestro3_assp_kernel.fw \
                                      ess/maestro3_assp_minisrc.fw
diff --git a/firmware/qlogic/sd7220.fw.ihex b/firmware/intel/sd7220.fw.ihex
index a33636319112..a33636319112 100644
--- a/firmware/qlogic/sd7220.fw.ihex
+++ b/firmware/intel/sd7220.fw.ihex
diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c
index ecd25a1b4e51..ca9d8f1a3bb6 100644
--- a/fs/btrfs/ctree.c
+++ b/fs/btrfs/ctree.c
@@ -651,6 +651,8 @@ tree_mod_log_insert_root(struct btrfs_fs_info *fs_info,
         if (tree_mod_dont_log(fs_info, NULL))
                 return 0;
 
+        __tree_mod_log_free_eb(fs_info, old_root);
+
         ret = tree_mod_alloc(fs_info, flags, &tm);
         if (ret < 0)
                 goto out;
@@ -736,7 +738,7 @@ tree_mod_log_search(struct btrfs_fs_info *fs_info, u64 start, u64 min_seq)
 static noinline void
 tree_mod_log_eb_copy(struct btrfs_fs_info *fs_info, struct extent_buffer *dst,
                      struct extent_buffer *src, unsigned long dst_offset,
-                     unsigned long src_offset, int nr_items)
+                     unsigned long src_offset, int nr_items, int log_removal)
 {
         int ret;
         int i;
@@ -750,10 +752,12 @@ tree_mod_log_eb_copy(struct btrfs_fs_info *fs_info, struct extent_buffer *dst,
         }
 
         for (i = 0; i < nr_items; i++) {
-                ret = tree_mod_log_insert_key_locked(fs_info, src,
-                                                     i + src_offset,
-                                                     MOD_LOG_KEY_REMOVE);
-                BUG_ON(ret < 0);
+                if (log_removal) {
+                        ret = tree_mod_log_insert_key_locked(fs_info, src,
+                                                        i + src_offset,
+                                                        MOD_LOG_KEY_REMOVE);
+                        BUG_ON(ret < 0);
+                }
                 ret = tree_mod_log_insert_key_locked(fs_info, dst,
                                                      i + dst_offset,
                                                      MOD_LOG_KEY_ADD);
@@ -927,7 +931,6 @@ static noinline int update_ref_for_cow(struct btrfs_trans_handle *trans,
                         ret = btrfs_dec_ref(trans, root, buf, 1, 1);
                         BUG_ON(ret); /* -ENOMEM */
                 }
-                tree_mod_log_free_eb(root->fs_info, buf);
                 clean_tree_block(trans, root, buf);
                 *last_ref = 1;
         }
@@ -1046,6 +1049,7 @@ static noinline int __btrfs_cow_block(struct btrfs_trans_handle *trans,
                 btrfs_set_node_ptr_generation(parent, parent_slot,
                                               trans->transid);
                 btrfs_mark_buffer_dirty(parent);
+                tree_mod_log_free_eb(root->fs_info, buf);
                 btrfs_free_tree_block(trans, root, buf, parent_start,
                                       last_ref);
         }
@@ -1750,7 +1754,6 @@ static noinline int balance_level(struct btrfs_trans_handle *trans,
                         goto enospc;
                 }
 
-                tree_mod_log_free_eb(root->fs_info, root->node);
                 tree_mod_log_set_root_pointer(root, child);
                 rcu_assign_pointer(root->node, child);
 
@@ -2995,7 +2998,7 @@ static int push_node_left(struct btrfs_trans_handle *trans,
                 push_items = min(src_nritems - 8, push_items);
 
         tree_mod_log_eb_copy(root->fs_info, dst, src, dst_nritems, 0,
-                             push_items);
+                             push_items, 1);
         copy_extent_buffer(dst, src,
                            btrfs_node_key_ptr_offset(dst_nritems),
                            btrfs_node_key_ptr_offset(0),
@@ -3066,7 +3069,7 @@ static int balance_node_right(struct btrfs_trans_handle *trans,
                                       sizeof(struct btrfs_key_ptr));
 
         tree_mod_log_eb_copy(root->fs_info, dst, src, 0,
-                             src_nritems - push_items, push_items);
+                             src_nritems - push_items, push_items, 1);
         copy_extent_buffer(dst, src,
                            btrfs_node_key_ptr_offset(0),
                            btrfs_node_key_ptr_offset(src_nritems - push_items),
@@ -3218,12 +3221,18 @@ static noinline int split_node(struct btrfs_trans_handle *trans,
         int mid;
         int ret;
         u32 c_nritems;
+        int tree_mod_log_removal = 1;
 
         c = path->nodes[level];
         WARN_ON(btrfs_header_generation(c) != trans->transid);
         if (c == root->node) {
                 /* trying to split the root, lets make a new one */
                 ret = insert_new_root(trans, root, path, level + 1);
+                /*
+                 * removal of root nodes has been logged by
+                 * tree_mod_log_set_root_pointer due to locking
+                 */
+                tree_mod_log_removal = 0;
                 if (ret)
                         return ret;
         } else {
@@ -3261,7 +3270,8 @@ static noinline int split_node(struct btrfs_trans_handle *trans,
                             (unsigned long)btrfs_header_chunk_tree_uuid(split),
                             BTRFS_UUID_SIZE);
 
-        tree_mod_log_eb_copy(root->fs_info, split, c, 0, mid, c_nritems - mid);
+        tree_mod_log_eb_copy(root->fs_info, split, c, 0, mid, c_nritems - mid,
+                             tree_mod_log_removal);
         copy_extent_buffer(split, c,
                            btrfs_node_key_ptr_offset(0),
                            btrfs_node_key_ptr_offset(mid),
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 7d84651e850b..6d19a0a554aa 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -1291,6 +1291,7 @@ struct btrfs_root *btrfs_create_tree(struct btrfs_trans_handle *trans,
                                       0, objectid, NULL, 0, 0, 0);
         if (IS_ERR(leaf)) {
                 ret = PTR_ERR(leaf);
+                leaf = NULL;
                 goto fail;
         }
 
@@ -1334,11 +1335,16 @@ struct btrfs_root *btrfs_create_tree(struct btrfs_trans_handle *trans,
 
         btrfs_tree_unlock(leaf);
 
+        return root;
+
 fail:
-        if (ret)
-                return ERR_PTR(ret);
+        if (leaf) {
+                btrfs_tree_unlock(leaf);
+                free_extent_buffer(leaf);
+        }
+        kfree(root);
 
-        return root;
+        return ERR_PTR(ret);
 }
 
 static struct btrfs_root *alloc_log_tree(struct btrfs_trans_handle *trans,
@@ -3253,7 +3259,7 @@ void btrfs_free_fs_root(struct btrfs_fs_info *fs_info, struct btrfs_root *root)
         if (btrfs_root_refs(&root->root_item) == 0)
                 synchronize_srcu(&fs_info->subvol_srcu);
 
-        if (fs_info->fs_state & BTRFS_SUPER_FLAG_ERROR) {
+        if (test_bit(BTRFS_FS_STATE_ERROR, &fs_info->fs_state)) {
                 btrfs_free_log(NULL, root);
                 btrfs_free_log_root_tree(NULL, fs_info);
         }
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 9ac2eca681eb..3d551231caba 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -257,7 +257,8 @@ static int exclude_super_stripes(struct btrfs_root *root,
                 cache->bytes_super += stripe_len;
                 ret = add_excluded_extent(root, cache->key.objectid,
                                           stripe_len);
-                BUG_ON(ret); /* -ENOMEM */
+                if (ret)
+                        return ret;
         }
 
         for (i = 0; i < BTRFS_SUPER_MIRROR_MAX; i++) {
@@ -265,13 +266,17 @@ static int exclude_super_stripes(struct btrfs_root *root,
                 ret = btrfs_rmap_block(&root->fs_info->mapping_tree,
                                        cache->key.objectid, bytenr,
                                        0, &logical, &nr, &stripe_len);
-                BUG_ON(ret); /* -ENOMEM */
+                if (ret)
+                        return ret;
 
                 while (nr--) {
                         cache->bytes_super += stripe_len;
                         ret = add_excluded_extent(root, logical[nr],
                                                   stripe_len);
-                        BUG_ON(ret); /* -ENOMEM */
+                        if (ret) {
+                                kfree(logical);
+                                return ret;
+                        }
                 }
 
                 kfree(logical);
@@ -4438,7 +4443,7 @@ static void update_global_block_rsv(struct btrfs_fs_info *fs_info)
         spin_lock(&sinfo->lock);
         spin_lock(&block_rsv->lock);
 
-        block_rsv->size = num_bytes;
+        block_rsv->size = min_t(u64, num_bytes, 512 * 1024 * 1024);
 
         num_bytes = sinfo->bytes_used + sinfo->bytes_pinned +
                     sinfo->bytes_reserved + sinfo->bytes_readonly +
@@ -4793,14 +4798,49 @@ out_fail:
          * If the inodes csum_bytes is the same as the original
          * csum_bytes then we know we haven't raced with any free()ers
          * so we can just reduce our inodes csum bytes and carry on.
-         * Otherwise we have to do the normal free thing to account for
-         * the case that the free side didn't free up its reserve
-         * because of this outstanding reservation.
          */
-        if (BTRFS_I(inode)->csum_bytes == csum_bytes)
+        if (BTRFS_I(inode)->csum_bytes == csum_bytes) {
                 calc_csum_metadata_size(inode, num_bytes, 0);
-        else
-                to_free = calc_csum_metadata_size(inode, num_bytes, 0);
+        } else {
+                u64 orig_csum_bytes = BTRFS_I(inode)->csum_bytes;
+                u64 bytes;
+
+                /*
+                 * This is tricky, but first we need to figure out how much we
+                 * free'd from any free-ers that occured during this
+                 * reservation, so we reset ->csum_bytes to the csum_bytes
+                 * before we dropped our lock, and then call the free for the
+                 * number of bytes that were freed while we were trying our
+                 * reservation.
+                 */
+                bytes = csum_bytes - BTRFS_I(inode)->csum_bytes;
+                BTRFS_I(inode)->csum_bytes = csum_bytes;
+                to_free = calc_csum_metadata_size(inode, bytes, 0);
+
+
+                /*
+                 * Now we need to see how much we would have freed had we not
+                 * been making this reservation and our ->csum_bytes were not
+                 * artificially inflated.
+                 */
+                BTRFS_I(inode)->csum_bytes = csum_bytes - num_bytes;
+                bytes = csum_bytes - orig_csum_bytes;
+                bytes = calc_csum_metadata_size(inode, bytes, 0);
+
+                /*
+                 * Now reset ->csum_bytes to what it should be.  If bytes is
+                 * more than to_free then we would have free'd more space had we
+                 * not had an artificially high ->csum_bytes, so we need to free
+                 * the remainder.  If bytes is the same or less then we don't
+                 * need to do anything, the other free-ers did the correct
+                 * thing.
+                 */
+                BTRFS_I(inode)->csum_bytes = orig_csum_bytes - num_bytes;
+                if (bytes > to_free)
+                        to_free = bytes - to_free;
+                else
+                        to_free = 0;
+        }
         spin_unlock(&BTRFS_I(inode)->lock);
         if (dropped)
                 to_free += btrfs_calc_trans_metadata_size(root, dropped);
@@ -7947,7 +7987,17 @@ int btrfs_read_block_groups(struct btrfs_root *root)
                  * info has super bytes accounted for, otherwise we'll think
                  * we have more space than we actually do.
                  */
-                exclude_super_stripes(root, cache);
+                ret = exclude_super_stripes(root, cache);
+                if (ret) {
+                        /*
+                         * We may have excluded something, so call this just in
+                         * case.
+                         */
+                        free_excluded_extents(root, cache);
+                        kfree(cache->free_space_ctl);
+                        kfree(cache);
+                        goto error;
+                }
 
                 /*
                  * check for two cases, either we are full, and therefore
@@ -8089,7 +8139,17 @@ int btrfs_make_block_group(struct btrfs_trans_handle *trans,
 
         cache->last_byte_to_unpin = (u64)-1;
         cache->cached = BTRFS_CACHE_FINISHED;
-        exclude_super_stripes(root, cache);
+        ret = exclude_super_stripes(root, cache);
+        if (ret) {
+                /*
+                 * We may have excluded something, so call this just in
+                 * case.
+                 */
+                free_excluded_extents(root, cache);
+                kfree(cache->free_space_ctl);
+                kfree(cache);
+                return ret;
+        }
 
         add_new_free_space(cache, root->fs_info, chunk_offset,
                            chunk_offset + size);
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index f173c5af6461..cdee391fc7bf 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -1257,6 +1257,39 @@ int unlock_extent(struct extent_io_tree *tree, u64 start, u64 end)
                                 GFP_NOFS);
 }
 
+int extent_range_clear_dirty_for_io(struct inode *inode, u64 start, u64 end)
+{
+        unsigned long index = start >> PAGE_CACHE_SHIFT;
+        unsigned long end_index = end >> PAGE_CACHE_SHIFT;
+        struct page *page;
+
+        while (index <= end_index) {
+                page = find_get_page(inode->i_mapping, index);
+                BUG_ON(!page); /* Pages should be in the extent_io_tree */
+                clear_page_dirty_for_io(page);
+                page_cache_release(page);
+                index++;
+        }
+        return 0;
+}
+
+int extent_range_redirty_for_io(struct inode *inode, u64 start, u64 end)
+{
+        unsigned long index = start >> PAGE_CACHE_SHIFT;
+        unsigned long end_index = end >> PAGE_CACHE_SHIFT;
+        struct page *page;
+
+        while (index <= end_index) {
+                page = find_get_page(inode->i_mapping, index);
+                BUG_ON(!page); /* Pages should be in the extent_io_tree */
+                account_page_redirty(page);
+                __set_page_dirty_nobuffers(page);
+                page_cache_release(page);
+                index++;
+        }
+        return 0;
+}
+
 /*
  * helper function to set both pages and extents in the tree writeback
  */
diff --git a/fs/btrfs/extent_io.h b/fs/btrfs/extent_io.h
index 6068a1985560..258c92156857 100644
--- a/fs/btrfs/extent_io.h
+++ b/fs/btrfs/extent_io.h
@@ -325,6 +325,8 @@ int map_private_extent_buffer(struct extent_buffer *eb, unsigned long offset,
                       unsigned long *map_len);
 int extent_range_uptodate(struct extent_io_tree *tree,
                           u64 start, u64 end);
+int extent_range_clear_dirty_for_io(struct inode *inode, u64 start, u64 end);
+int extent_range_redirty_for_io(struct inode *inode, u64 start, u64 end);
 int extent_clear_unlock_delalloc(struct inode *inode,
                                 struct extent_io_tree *tree,
                                 u64 start, u64 end, struct page *locked_page,
diff --git a/fs/btrfs/file-item.c b/fs/btrfs/file-item.c
index ec160202be3e..c4628a201cb3 100644
--- a/fs/btrfs/file-item.c
+++ b/fs/btrfs/file-item.c
@@ -118,9 +118,11 @@ struct btrfs_csum_item *btrfs_lookup_csum(struct btrfs_trans_handle *trans,
                 csums_in_item = btrfs_item_size_nr(leaf, path->slots[0]);
                 csums_in_item /= csum_size;
 
-                if (csum_offset >= csums_in_item) {
+                if (csum_offset == csums_in_item) {
                         ret = -EFBIG;
                         goto fail;
+                } else if (csum_offset > csums_in_item) {
+                        goto fail;
                 }
         }
         item = btrfs_item_ptr(leaf, path->slots[0], struct btrfs_csum_item);
@@ -728,7 +730,6 @@ int btrfs_csum_file_blocks(struct btrfs_trans_handle *trans,
                 return -ENOMEM;
 
         sector_sum = sums->sums;
-        trans->adding_csums = 1;
 again:
         next_offset = (u64)-1;
         found_next = 0;
@@ -899,7 +900,6 @@ next_sector:
                 goto again;
         }
 out:
-        trans->adding_csums = 0;
         btrfs_free_path(path);
         return ret;
 
diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index 5b4ea5f55b8f..ade03e6f7bd2 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -2142,6 +2142,7 @@ static long btrfs_fallocate(struct file *file, int mode,
 {
         struct inode *inode = file_inode(file);
         struct extent_state *cached_state = NULL;
+        struct btrfs_root *root = BTRFS_I(inode)->root;
         u64 cur_offset;
         u64 last_byte;
         u64 alloc_start;
@@ -2169,6 +2170,11 @@ static long btrfs_fallocate(struct file *file, int mode,
         ret = btrfs_check_data_free_space(inode, alloc_end - alloc_start);
         if (ret)
                 return ret;
+        if (root->fs_info->quota_enabled) {
+                ret = btrfs_qgroup_reserve(root, alloc_end - alloc_start);
+                if (ret)
+                        goto out_reserve_fail;
+        }
 
         /*
          * wait for ordered IO before we have any locks.  We'll loop again
@@ -2272,6 +2278,9 @@ static long btrfs_fallocate(struct file *file, int mode,
                              &cached_state, GFP_NOFS);
 out:
         mutex_unlock(&inode->i_mutex);
+        if (root->fs_info->quota_enabled)
+                btrfs_qgroup_free(root, alloc_end - alloc_start);
+out_reserve_fail:
         /* Let go of our reservation. */
         btrfs_free_reserved_data_space(inode, alloc_end - alloc_start);
         return ret;
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index ca1b767d51f7..09c58a35b429 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -353,6 +353,7 @@ static noinline int compress_file_range(struct inode *inode,
         int i;
         int will_compress;
         int compress_type = root->fs_info->compress_type;
+        int redirty = 0;
 
         /* if this is a small write inside eof, kick off a defrag */
         if ((end - start + 1) < 16 * 1024 &&
@@ -415,6 +416,17 @@ again:
                 if (BTRFS_I(inode)->force_compress)
                         compress_type = BTRFS_I(inode)->force_compress;
 
+                /*
+                 * we need to call clear_page_dirty_for_io on each
+                 * page in the range.  Otherwise applications with the file
+                 * mmap'd can wander in and change the page contents while
+                 * we are compressing them.
+                 *
+                 * If the compression fails for any reason, we set the pages
+                 * dirty again later on.
+                 */
+                extent_range_clear_dirty_for_io(inode, start, end);
+                redirty = 1;
                 ret = btrfs_compress_pages(compress_type,
                                            inode->i_mapping, start,
                                            total_compressed, pages,
@@ -554,6 +566,8 @@ cleanup_and_bail_uncompressed:
                         __set_page_dirty_nobuffers(locked_page);
                         /* unlocked later on in the async handlers */
                 }
+                if (redirty)
+                        extent_range_redirty_for_io(inode, start, end);
                 add_async_extent(async_cow, start, end - start + 1,
                                  0, NULL, 0, BTRFS_COMPRESS_NONE);
                 *num_added += 1;
@@ -1743,8 +1757,10 @@ static noinline int add_pending_csums(struct btrfs_trans_handle *trans,
         struct btrfs_ordered_sum *sum;
 
         list_for_each_entry(sum, list, list) {
+                trans->adding_csums = 1;
                 btrfs_csum_file_blocks(trans,
                        BTRFS_I(inode)->root->fs_info->csum_root, sum);
+                trans->adding_csums = 0;
         }
         return 0;
 }
@@ -3679,11 +3695,9 @@ static struct btrfs_trans_handle *__unlink_start_trans(struct inode *dir,
          * 1 for the dir item
          * 1 for the dir index
          * 1 for the inode ref
-         * 1 for the inode ref in the tree log
-         * 2 for the dir entries in the log
          * 1 for the inode
          */
-        trans = btrfs_start_transaction(root, 8);
+        trans = btrfs_start_transaction(root, 5);
         if (!IS_ERR(trans) || PTR_ERR(trans) != -ENOSPC)
                 return trans;
 
@@ -8127,7 +8141,7 @@ static int btrfs_rename(struct inode *old_dir, struct dentry *old_dentry,
          * inodes.  So 5 * 2 is 10, plus 1 for the new link, so 11 total items
          * should cover the worst case number of items we'll modify.
          */
-        trans = btrfs_start_transaction(root, 20);
+        trans = btrfs_start_transaction(root, 11);
         if (IS_ERR(trans)) {
                 ret = PTR_ERR(trans);
                 goto out_notrans;
diff --git a/fs/btrfs/ordered-data.c b/fs/btrfs/ordered-data.c
index dc08d77b717e..005c45db699e 100644
--- a/fs/btrfs/ordered-data.c
+++ b/fs/btrfs/ordered-data.c
@@ -557,6 +557,7 @@ void btrfs_wait_ordered_extents(struct btrfs_root *root, int delay_iput)
         INIT_LIST_HEAD(&splice);
         INIT_LIST_HEAD(&works);
 
+        mutex_lock(&root->fs_info->ordered_operations_mutex);
         spin_lock(&root->fs_info->ordered_extent_lock);
         list_splice_init(&root->fs_info->ordered_extents, &splice);
         while (!list_empty(&splice)) {
@@ -600,6 +601,7 @@ void btrfs_wait_ordered_extents(struct btrfs_root *root, int delay_iput)
 
                 cond_resched();
         }
+        mutex_unlock(&root->fs_info->ordered_operations_mutex);
 }
 
 /*
diff --git a/fs/btrfs/qgroup.c b/fs/btrfs/qgroup.c
index 5471e47d6559..b44124dd2370 100644
--- a/fs/btrfs/qgroup.c
+++ b/fs/btrfs/qgroup.c
@@ -1153,7 +1153,7 @@ int btrfs_qgroup_account_ref(struct btrfs_trans_handle *trans,
         ret = btrfs_find_all_roots(trans, fs_info, node->bytenr,
                                    sgn > 0 ? node->seq - 1 : node->seq, &roots);
         if (ret < 0)
-                goto out;
+                return ret;
 
         spin_lock(&fs_info->qgroup_lock);
         quota_root = fs_info->quota_root;
@@ -1275,7 +1275,6 @@ int btrfs_qgroup_account_ref(struct btrfs_trans_handle *trans,
         ret = 0;
 unlock:
         spin_unlock(&fs_info->qgroup_lock);
-out:
         ulist_free(roots);
         ulist_free(tmp);
 
diff --git a/fs/btrfs/scrub.c b/fs/btrfs/scrub.c
index 53c3501fa4ca..85e072b956d5 100644
--- a/fs/btrfs/scrub.c
+++ b/fs/btrfs/scrub.c
@@ -542,7 +542,6 @@ static void scrub_print_warning(const char *errstr, struct scrub_block *sblock)
         eb = path->nodes[0];
         ei = btrfs_item_ptr(eb, path->slots[0], struct btrfs_extent_item);
         item_size = btrfs_item_size_nr(eb, path->slots[0]);
-        btrfs_release_path(path);
 
         if (flags & BTRFS_EXTENT_FLAG_TREE_BLOCK) {
                 do {
@@ -558,7 +557,9 @@ static void scrub_print_warning(const char *errstr, struct scrub_block *sblock)
                                 ret < 0 ? -1 : ref_level,
                                 ret < 0 ? -1 : ref_root);
                 } while (ret != 1);
+                btrfs_release_path(path);
         } else {
+                btrfs_release_path(path);
                 swarn.path = path;
                 swarn.dev = dev;
                 iterate_extent_inodes(fs_info, found_key.objectid,
diff --git a/fs/btrfs/send.c b/fs/btrfs/send.c
index f7a8b861058b..c85e7c6b4598 100644
--- a/fs/btrfs/send.c
+++ b/fs/btrfs/send.c
@@ -3945,12 +3945,10 @@ static int is_extent_unchanged(struct send_ctx *sctx,
                     found_key.type != key.type) {
                         key.offset += right_len;
                         break;
-                } else {
-                        if (found_key.offset != key.offset + right_len) {
-                                /* Should really not happen */
-                                ret = -EIO;
-                                goto out;
-                        }
+                }
+                if (found_key.offset != key.offset + right_len) {
+                        ret = 0;
+                        goto out;
                 }
                 key = found_key;
         }
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 5989a92236f7..2854c824ab64 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -4935,7 +4935,18 @@ int btrfs_rmap_block(struct btrfs_mapping_tree *map_tree,
         em = lookup_extent_mapping(em_tree, chunk_start, 1);
         read_unlock(&em_tree->lock);
 
-        BUG_ON(!em || em->start != chunk_start);
+        if (!em) {
+                printk(KERN_ERR "btrfs: couldn't find em for chunk %Lu\n",
+                       chunk_start);
+                return -EIO;
+        }
+
+        if (em->start != chunk_start) {
+                printk(KERN_ERR "btrfs: bad chunk start, em=%Lu, wanted=%Lu\n",
+                       em->start, chunk_start);
+                free_extent_map(em);
+                return -EIO;
+        }
         map = (struct map_lookup *)em->bdev;
 
         length = em->len;
diff --git a/fs/dcache.c b/fs/dcache.c
index fbfae008ba44..e8bc3420d63e 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -2542,7 +2542,6 @@ static int prepend_path(const struct path *path,
         bool slash = false;
         int error = 0;
 
-        br_read_lock(&vfsmount_lock);
         while (dentry != root->dentry || vfsmnt != root->mnt) {
                 struct dentry * parent;
 
@@ -2572,8 +2571,6 @@ static int prepend_path(const struct path *path,
         if (!error && !slash)
                 error = prepend(buffer, buflen, "/", 1);
 
-out:
-        br_read_unlock(&vfsmount_lock);
         return error;
 
 global_root:
@@ -2590,7 +2587,7 @@ global_root:
                 error = prepend(buffer, buflen, "/", 1);
         if (!error)
                 error = is_mounted(vfsmnt) ? 1 : 2;
-        goto out;
+        return error;
 }
 
 /**
@@ -2617,9 +2614,11 @@ char *__d_path(const struct path *path,
         int error;
 
         prepend(&res, &buflen, "\0", 1);
+        br_read_lock(&vfsmount_lock);
         write_seqlock(&rename_lock);
         error = prepend_path(path, root, &res, &buflen);
         write_sequnlock(&rename_lock);
+        br_read_unlock(&vfsmount_lock);
 
         if (error < 0)
                 return ERR_PTR(error);
@@ -2636,9 +2635,11 @@ char *d_absolute_path(const struct path *path,
         int error;
 
         prepend(&res, &buflen, "\0", 1);
+        br_read_lock(&vfsmount_lock);
         write_seqlock(&rename_lock);
         error = prepend_path(path, &root, &res, &buflen);
         write_sequnlock(&rename_lock);
+        br_read_unlock(&vfsmount_lock);
 
         if (error > 1)
                 error = -EINVAL;
@@ -2702,11 +2703,13 @@ char *d_path(const struct path *path, char *buf, int buflen)
                 return path->dentry->d_op->d_dname(path->dentry, buf, buflen);
 
         get_fs_root(current->fs, &root);
+        br_read_lock(&vfsmount_lock);
         write_seqlock(&rename_lock);
         error = path_with_deleted(path, &root, &res, &buflen);
+        write_sequnlock(&rename_lock);
+        br_read_unlock(&vfsmount_lock);
         if (error < 0)
                 res = ERR_PTR(error);
-        write_sequnlock(&rename_lock);
         path_put(&root);
         return res;
 }
@@ -2830,6 +2833,7 @@ SYSCALL_DEFINE2(getcwd, char __user *, buf, unsigned long, size)
         get_fs_root_and_pwd(current->fs, &root, &pwd);
 
         error = -ENOENT;
+        br_read_lock(&vfsmount_lock);
         write_seqlock(&rename_lock);
         if (!d_unlinked(pwd.dentry)) {
                 unsigned long len;
@@ -2839,6 +2843,7 @@ SYSCALL_DEFINE2(getcwd, char __user *, buf, unsigned long, size)
                 prepend(&cwd, &buflen, "\0", 1);
                 error = prepend_path(&pwd, &root, &cwd, &buflen);
                 write_sequnlock(&rename_lock);
+                br_read_unlock(&vfsmount_lock);
 
                 if (error < 0)
                         goto out;
@@ -2859,6 +2864,7 @@ SYSCALL_DEFINE2(getcwd, char __user *, buf, unsigned long, size)
                 }
         } else {
                 write_sequnlock(&rename_lock);
+                br_read_unlock(&vfsmount_lock);
         }
 
 out:
diff --git a/fs/internal.h b/fs/internal.h
index 507141fceb99..4be78237d896 100644
--- a/fs/internal.h
+++ b/fs/internal.h
@@ -125,3 +125,8 @@ extern int invalidate_inodes(struct super_block *, bool);
  * dcache.c
  */
 extern struct dentry *__d_alloc(struct super_block *, const struct qstr *);
+
+/*
+ * read_write.c
+ */
+extern ssize_t __kernel_write(struct file *, const char *, size_t, loff_t *);
diff --git a/fs/namespace.c b/fs/namespace.c
index 50ca17d3cb45..d581e45c0a9f 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -798,6 +798,10 @@ static struct mount *clone_mnt(struct mount *old, struct dentry *root,
         }
 
         mnt->mnt.mnt_flags = old->mnt.mnt_flags & ~MNT_WRITE_HOLD;
+        /* 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;
+
         atomic_inc(&sb->s_active);
         mnt->mnt.mnt_sb = sb;
         mnt->mnt.mnt_root = dget(root);
@@ -1713,6 +1717,9 @@ static int change_mount_flags(struct vfsmount *mnt, int ms_flags)
         if (readonly_request == __mnt_is_readonly(mnt))
                 return 0;
 
+        if (mnt->mnt_flags & MNT_LOCK_READONLY)
+                return -EPERM;
+
         if (readonly_request)
                 error = mnt_make_readonly(real_mount(mnt));
         else
@@ -2339,7 +2346,7 @@ static struct mnt_namespace *dup_mnt_ns(struct mnt_namespace *mnt_ns,
         /* First pass: copy the tree topology */
         copy_flags = CL_COPY_ALL | CL_EXPIRE;
         if (user_ns != mnt_ns->user_ns)
-                copy_flags |= CL_SHARED_TO_SLAVE;
+                copy_flags |= CL_SHARED_TO_SLAVE | CL_UNPRIVILEGED;
         new = copy_tree(old, old->mnt.mnt_root, copy_flags);
         if (IS_ERR(new)) {
                 up_write(&namespace_sem);
@@ -2732,6 +2739,51 @@ bool our_mnt(struct vfsmount *mnt)
         return check_mnt(real_mount(mnt));
 }
 
+bool current_chrooted(void)
+{
+        /* Does the current process have a non-standard root */
+        struct path ns_root;
+        struct path fs_root;
+        bool chrooted;
+
+        /* Find the namespace root */
+        ns_root.mnt = &current->nsproxy->mnt_ns->root->mnt;
+        ns_root.dentry = ns_root.mnt->mnt_root;
+        path_get(&ns_root);
+        while (d_mountpoint(ns_root.dentry) && follow_down_one(&ns_root))
+                ;
+
+        get_fs_root(current->fs, &fs_root);
+
+        chrooted = !path_equal(&fs_root, &ns_root);
+
+        path_put(&fs_root);
+        path_put(&ns_root);
+
+        return chrooted;
+}
+
+void update_mnt_policy(struct user_namespace *userns)
+{
+        struct mnt_namespace *ns = current->nsproxy->mnt_ns;
+        struct mount *mnt;
+
+        down_read(&namespace_sem);
+        list_for_each_entry(mnt, &ns->list, mnt_list) {
+                switch (mnt->mnt.mnt_sb->s_magic) {
+                case SYSFS_MAGIC:
+                        userns->may_mount_sysfs = true;
+                        break;
+                case PROC_SUPER_MAGIC:
+                        userns->may_mount_proc = true;
+                        break;
+                }
+                if (userns->may_mount_sysfs && userns->may_mount_proc)
+                        break;
+        }
+        up_read(&namespace_sem);
+}
+
 static void *mntns_get(struct task_struct *task)
 {
         struct mnt_namespace *ns = NULL;
diff --git a/fs/nfs/blocklayout/blocklayoutdm.c b/fs/nfs/blocklayout/blocklayoutdm.c
index 737d839bc17b..6fc7b5cae92b 100644
--- a/fs/nfs/blocklayout/blocklayoutdm.c
+++ b/fs/nfs/blocklayout/blocklayoutdm.c
@@ -55,7 +55,8 @@ static void dev_remove(struct net *net, dev_t dev)
 
         bl_pipe_msg.bl_wq = &nn->bl_wq;
         memset(msg, 0, sizeof(*msg));
-        msg->data = kzalloc(1 + sizeof(bl_umount_request), GFP_NOFS);
+        msg->len = sizeof(bl_msg) + bl_msg.totallen;
+        msg->data = kzalloc(msg->len, GFP_NOFS);
         if (!msg->data)
                 goto out;
 
@@ -66,7 +67,6 @@ static void dev_remove(struct net *net, dev_t dev)
         memcpy(msg->data, &bl_msg, sizeof(bl_msg));
         dataptr = (uint8_t *) msg->data;
         memcpy(&dataptr[sizeof(bl_msg)], &bl_umount_request, sizeof(bl_umount_request));
-        msg->len = sizeof(bl_msg) + bl_msg.totallen;
 
         add_wait_queue(&nn->bl_wq, &wq);
         if (rpc_queue_upcall(nn->bl_device_pipe, msg) < 0) {
diff --git a/fs/nfs/idmap.c b/fs/nfs/idmap.c
index dc0f98dfa717..c516da5873fd 100644
--- a/fs/nfs/idmap.c
+++ b/fs/nfs/idmap.c
@@ -726,9 +726,9 @@ out1:
         return ret;
 }
 
-static int nfs_idmap_instantiate(struct key *key, struct key *authkey, char *data)
+static int nfs_idmap_instantiate(struct key *key, struct key *authkey, char *data, size_t datalen)
 {
-        return key_instantiate_and_link(key, data, strlen(data) + 1,
+        return key_instantiate_and_link(key, data, datalen,
                                         id_resolver_cache->thread_keyring,
                                         authkey);
 }
@@ -738,6 +738,7 @@ static int nfs_idmap_read_and_verify_message(struct idmap_msg *im,
                 struct key *key, struct key *authkey)
 {
         char id_str[NFS_UINT_MAXLEN];
+        size_t len;
         int ret = -ENOKEY;
 
         /* ret = -ENOKEY */
@@ -747,13 +748,15 @@ static int nfs_idmap_read_and_verify_message(struct idmap_msg *im,
         case IDMAP_CONV_NAMETOID:
                 if (strcmp(upcall->im_name, im->im_name) != 0)
                         break;
-                sprintf(id_str, "%d", im->im_id);
-                ret = nfs_idmap_instantiate(key, authkey, id_str);
+                /* Note: here we store the NUL terminator too */
+                len = sprintf(id_str, "%d", im->im_id) + 1;
+                ret = nfs_idmap_instantiate(key, authkey, id_str, len);
                 break;
         case IDMAP_CONV_IDTONAME:
                 if (upcall->im_id != im->im_id)
                         break;
-                ret = nfs_idmap_instantiate(key, authkey, im->im_name);
+                len = strlen(im->im_name);
+                ret = nfs_idmap_instantiate(key, authkey, im->im_name, len);
                 break;
         default:
                 ret = -EINVAL;
diff --git a/fs/nfs/nfs4filelayout.c b/fs/nfs/nfs4filelayout.c
index 49eeb044c109..4fb234d3aefb 100644
--- a/fs/nfs/nfs4filelayout.c
+++ b/fs/nfs/nfs4filelayout.c
@@ -129,7 +129,6 @@ static void filelayout_fenceme(struct inode *inode, struct pnfs_layout_hdr *lo)
 {
         if (!test_and_clear_bit(NFS_LAYOUT_RETURN, &lo->plh_flags))
                 return;
-        clear_bit(NFS_INO_LAYOUTCOMMIT, &NFS_I(inode)->flags);
         pnfs_return_layout(inode);
 }
 
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index b2671cb0f901..26431cf62ddb 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -2632,7 +2632,7 @@ nfs4_proc_setattr(struct dentry *dentry, struct nfs_fattr *fattr,
         int status;
 
         if (pnfs_ld_layoutret_on_setattr(inode))
-                pnfs_return_layout(inode);
+                pnfs_commit_and_return_layout(inode);
 
         nfs_fattr_init(fattr);
         
@@ -6416,22 +6416,8 @@ nfs4_layoutcommit_done(struct rpc_task *task, void *calldata)
 static void nfs4_layoutcommit_release(void *calldata)
 {
         struct nfs4_layoutcommit_data *data = calldata;
-        struct pnfs_layout_segment *lseg, *tmp;
-        unsigned long *bitlock = &NFS_I(data->args.inode)->flags;
 
         pnfs_cleanup_layoutcommit(data);
-        /* Matched by references in pnfs_set_layoutcommit */
-        list_for_each_entry_safe(lseg, tmp, &data->lseg_list, pls_lc_list) {
-                list_del_init(&lseg->pls_lc_list);
-                if (test_and_clear_bit(NFS_LSEG_LAYOUTCOMMIT,
-                                       &lseg->pls_flags))
-                        pnfs_put_lseg(lseg);
-        }
-
-        clear_bit_unlock(NFS_INO_LAYOUTCOMMITTING, bitlock);
-        smp_mb__after_clear_bit();
-        wake_up_bit(bitlock, NFS_INO_LAYOUTCOMMITTING);
-
         put_rpccred(data->cred);
         kfree(data);
 }
diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c
index 48ac5aad6258..4bdffe0ba025 100644
--- a/fs/nfs/pnfs.c
+++ b/fs/nfs/pnfs.c
@@ -417,6 +417,16 @@ should_free_lseg(struct pnfs_layout_range *lseg_range,
                lo_seg_intersecting(lseg_range, recall_range);
 }
 
+static bool pnfs_lseg_dec_and_remove_zero(struct pnfs_layout_segment *lseg,
+                struct list_head *tmp_list)
+{
+        if (!atomic_dec_and_test(&lseg->pls_refcount))
+                return false;
+        pnfs_layout_remove_lseg(lseg->pls_layout, lseg);
+        list_add(&lseg->pls_list, tmp_list);
+        return true;
+}
+
 /* Returns 1 if lseg is removed from list, 0 otherwise */
 static int mark_lseg_invalid(struct pnfs_layout_segment *lseg,
                              struct list_head *tmp_list)
@@ -430,11 +440,8 @@ static int mark_lseg_invalid(struct pnfs_layout_segment *lseg,
                  */
                 dprintk("%s: lseg %p ref %d\n", __func__, lseg,
                         atomic_read(&lseg->pls_refcount));
-                if (atomic_dec_and_test(&lseg->pls_refcount)) {
-                        pnfs_layout_remove_lseg(lseg->pls_layout, lseg);
-                        list_add(&lseg->pls_list, tmp_list);
+                if (pnfs_lseg_dec_and_remove_zero(lseg, tmp_list))
                         rv = 1;
-                }
         }
         return rv;
 }
@@ -777,6 +784,21 @@ send_layoutget(struct pnfs_layout_hdr *lo,
         return lseg;
 }
 
+static void pnfs_clear_layoutcommit(struct inode *inode,
+                struct list_head *head)
+{
+        struct nfs_inode *nfsi = NFS_I(inode);
+        struct pnfs_layout_segment *lseg, *tmp;
+
+        if (!test_and_clear_bit(NFS_INO_LAYOUTCOMMIT, &nfsi->flags))
+                return;
+        list_for_each_entry_safe(lseg, tmp, &nfsi->layout->plh_segs, pls_list) {
+                if (!test_and_clear_bit(NFS_LSEG_LAYOUTCOMMIT, &lseg->pls_flags))
+                        continue;
+                pnfs_lseg_dec_and_remove_zero(lseg, head);
+        }
+}
+
 /*
  * Initiates a LAYOUTRETURN(FILE), and removes the pnfs_layout_hdr
  * when the layout segment list is empty.
@@ -808,6 +830,7 @@ _pnfs_return_layout(struct inode *ino)
         /* Reference matched in nfs4_layoutreturn_release */
         pnfs_get_layout_hdr(lo);
         empty = list_empty(&lo->plh_segs);
+        pnfs_clear_layoutcommit(ino, &tmp_list);
         pnfs_mark_matching_lsegs_invalid(lo, &tmp_list, NULL);
         /* Don't send a LAYOUTRETURN if list was initially empty */
         if (empty) {
@@ -820,8 +843,6 @@ _pnfs_return_layout(struct inode *ino)
         spin_unlock(&ino->i_lock);
         pnfs_free_lseg_list(&tmp_list);
 
-        WARN_ON(test_bit(NFS_INO_LAYOUTCOMMIT, &nfsi->flags));
-
         lrp = kzalloc(sizeof(*lrp), GFP_KERNEL);
         if (unlikely(lrp == NULL)) {
                 status = -ENOMEM;
@@ -845,6 +866,33 @@ out:
 }
 EXPORT_SYMBOL_GPL(_pnfs_return_layout);
 
+int
+pnfs_commit_and_return_layout(struct inode *inode)
+{
+        struct pnfs_layout_hdr *lo;
+        int ret;
+
+        spin_lock(&inode->i_lock);
+        lo = NFS_I(inode)->layout;
+        if (lo == NULL) {
+                spin_unlock(&inode->i_lock);
+                return 0;
+        }
+        pnfs_get_layout_hdr(lo);
+        /* Block new layoutgets and read/write to ds */
+        lo->plh_block_lgets++;
+        spin_unlock(&inode->i_lock);
+        filemap_fdatawait(inode->i_mapping);
+        ret = pnfs_layoutcommit_inode(inode, true);
+        if (ret == 0)
+                ret = _pnfs_return_layout(inode);
+        spin_lock(&inode->i_lock);
+        lo->plh_block_lgets--;
+        spin_unlock(&inode->i_lock);
+        pnfs_put_layout_hdr(lo);
+        return ret;
+}
+
 bool pnfs_roc(struct inode *ino)
 {
         struct pnfs_layout_hdr *lo;
@@ -1458,7 +1506,6 @@ static void pnfs_ld_handle_write_error(struct nfs_write_data *data)
         dprintk("pnfs write error = %d\n", hdr->pnfs_error);
         if (NFS_SERVER(hdr->inode)->pnfs_curr_ld->flags &
             PNFS_LAYOUTRET_ON_ERROR) {
-                clear_bit(NFS_INO_LAYOUTCOMMIT, &NFS_I(hdr->inode)->flags);
                 pnfs_return_layout(hdr->inode);
         }
         if (!test_and_set_bit(NFS_IOHDR_REDO, &hdr->flags))
@@ -1613,7 +1660,6 @@ static void pnfs_ld_handle_read_error(struct nfs_read_data *data)
         dprintk("pnfs read error = %d\n", hdr->pnfs_error);
         if (NFS_SERVER(hdr->inode)->pnfs_curr_ld->flags &
             PNFS_LAYOUTRET_ON_ERROR) {
-                clear_bit(NFS_INO_LAYOUTCOMMIT, &NFS_I(hdr->inode)->flags);
                 pnfs_return_layout(hdr->inode);
         }
         if (!test_and_set_bit(NFS_IOHDR_REDO, &hdr->flags))
@@ -1746,11 +1792,27 @@ static void pnfs_list_write_lseg(struct inode *inode, struct list_head *listp)
 
         list_for_each_entry(lseg, &NFS_I(inode)->layout->plh_segs, pls_list) {
                 if (lseg->pls_range.iomode == IOMODE_RW &&
-                    test_bit(NFS_LSEG_LAYOUTCOMMIT, &lseg->pls_flags))
+                    test_and_clear_bit(NFS_LSEG_LAYOUTCOMMIT, &lseg->pls_flags))
                         list_add(&lseg->pls_lc_list, listp);
         }
 }
 
+static void pnfs_list_write_lseg_done(struct inode *inode, struct list_head *listp)
+{
+        struct pnfs_layout_segment *lseg, *tmp;
+        unsigned long *bitlock = &NFS_I(inode)->flags;
+
+        /* Matched by references in pnfs_set_layoutcommit */
+        list_for_each_entry_safe(lseg, tmp, listp, pls_lc_list) {
+                list_del_init(&lseg->pls_lc_list);
+                pnfs_put_lseg(lseg);
+        }
+
+        clear_bit_unlock(NFS_INO_LAYOUTCOMMITTING, bitlock);
+        smp_mb__after_clear_bit();
+        wake_up_bit(bitlock, NFS_INO_LAYOUTCOMMITTING);
+}
+
 void pnfs_set_lo_fail(struct pnfs_layout_segment *lseg)
 {
         pnfs_layout_io_set_failed(lseg->pls_layout, lseg->pls_range.iomode);
@@ -1795,6 +1857,7 @@ void pnfs_cleanup_layoutcommit(struct nfs4_layoutcommit_data *data)
 
         if (nfss->pnfs_curr_ld->cleanup_layoutcommit)
                 nfss->pnfs_curr_ld->cleanup_layoutcommit(data);
+        pnfs_list_write_lseg_done(data->args.inode, &data->lseg_list);
 }
 
 /*
diff --git a/fs/nfs/pnfs.h b/fs/nfs/pnfs.h
index 94ba80417748..f5f8a470a647 100644
--- a/fs/nfs/pnfs.h
+++ b/fs/nfs/pnfs.h
@@ -219,6 +219,7 @@ void pnfs_set_layoutcommit(struct nfs_write_data *wdata);
 void pnfs_cleanup_layoutcommit(struct nfs4_layoutcommit_data *data);
 int pnfs_layoutcommit_inode(struct inode *inode, bool sync);
 int _pnfs_return_layout(struct inode *);
+int pnfs_commit_and_return_layout(struct inode *);
 void pnfs_ld_write_done(struct nfs_write_data *);
 void pnfs_ld_read_done(struct nfs_read_data *);
 struct pnfs_layout_segment *pnfs_update_layout(struct inode *ino,
@@ -407,6 +408,11 @@ static inline int pnfs_return_layout(struct inode *ino)
         return 0;
 }
 
+static inline int pnfs_commit_and_return_layout(struct inode *inode)
+{
+        return 0;
+}
+
 static inline bool
 pnfs_ld_layoutret_on_setattr(struct inode *inode)
 {
diff --git a/fs/nfsd/nfscache.c b/fs/nfsd/nfscache.c
index 62c1ee128aeb..ca05f6dc3544 100644
--- a/fs/nfsd/nfscache.c
+++ b/fs/nfsd/nfscache.c
@@ -102,7 +102,8 @@ nfsd_reply_cache_free_locked(struct svc_cacherep *rp)
 {
         if (rp->c_type == RC_REPLBUFF)
                 kfree(rp->c_replvec.iov_base);
-        hlist_del(&rp->c_hash);
+        if (!hlist_unhashed(&rp->c_hash))
+                hlist_del(&rp->c_hash);
         list_del(&rp->c_lru);
         --num_drc_entries;
         kmem_cache_free(drc_slab, rp);
@@ -118,6 +119,10 @@ nfsd_reply_cache_free(struct svc_cacherep *rp)
 
 int nfsd_reply_cache_init(void)
 {
+        INIT_LIST_HEAD(&lru_head);
+        max_drc_entries = nfsd_cache_size_limit();
+        num_drc_entries = 0;
+
         register_shrinker(&nfsd_reply_cache_shrinker);
         drc_slab = kmem_cache_create("nfsd_drc", sizeof(struct svc_cacherep),
                                         0, 0, NULL);
@@ -128,10 +133,6 @@ int nfsd_reply_cache_init(void)
         if (!cache_hash)
                 goto out_nomem;
 
-        INIT_LIST_HEAD(&lru_head);
-        max_drc_entries = nfsd_cache_size_limit();
-        num_drc_entries = 0;
-
         return 0;
 out_nomem:
         printk(KERN_ERR "nfsd: failed to allocate reply cache\n");
diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index 2a7eb536de0b..2b2e2396a869 100644
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -1013,6 +1013,7 @@ nfsd_vfs_write(struct svc_rqst *rqstp, struct svc_fh *fhp, struct file *file,
         int                     host_err;
         int                     stable = *stablep;
         int                     use_wgather;
+        loff_t                  pos = offset;
 
         dentry = file->f_path.dentry;
         inode = dentry->d_inode;
@@ -1025,7 +1026,7 @@ nfsd_vfs_write(struct svc_rqst *rqstp, struct svc_fh *fhp, struct file *file,
 
         /* Write the data. */
         oldfs = get_fs(); set_fs(KERNEL_DS);
-        host_err = vfs_writev(file, (struct iovec __user *)vec, vlen, &offset);
+        host_err = vfs_writev(file, (struct iovec __user *)vec, vlen, &pos);
         set_fs(oldfs);
         if (host_err < 0)
                 goto out_nfserr;
diff --git a/fs/pnode.c b/fs/pnode.c
index 3e000a51ac0d..8b29d2164da6 100644
--- a/fs/pnode.c
+++ b/fs/pnode.c
@@ -9,6 +9,7 @@
 #include <linux/mnt_namespace.h>
 #include <linux/mount.h>
 #include <linux/fs.h>
+#include <linux/nsproxy.h>
 #include "internal.h"
 #include "pnode.h"
 
@@ -220,6 +221,7 @@ static struct mount *get_source(struct mount *dest,
 int propagate_mnt(struct mount *dest_mnt, struct dentry *dest_dentry,
                     struct mount *source_mnt, struct list_head *tree_list)
 {
+        struct user_namespace *user_ns = current->nsproxy->mnt_ns->user_ns;
         struct mount *m, *child;
         int ret = 0;
         struct mount *prev_dest_mnt = dest_mnt;
@@ -237,6 +239,10 @@ int propagate_mnt(struct mount *dest_mnt, struct dentry *dest_dentry,
 
                 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);
diff --git a/fs/pnode.h b/fs/pnode.h
index 19b853a3445c..a0493d5ebfbf 100644
--- a/fs/pnode.h
+++ b/fs/pnode.h
@@ -23,6 +23,7 @@
 #define CL_MAKE_SHARED          0x08
 #define CL_PRIVATE              0x10
 #define CL_SHARED_TO_SLAVE      0x20
+#define CL_UNPRIVILEGED         0x40
 
 static inline void set_mnt_shared(struct mount *mnt)
 {
diff --git a/fs/proc/root.c b/fs/proc/root.c
index c6e9fac26bac..9c7fab1d23f0 100644
--- a/fs/proc/root.c
+++ b/fs/proc/root.c
@@ -16,6 +16,7 @@
 #include <linux/sched.h>
 #include <linux/module.h>
 #include <linux/bitops.h>
+#include <linux/user_namespace.h>
 #include <linux/mount.h>
 #include <linux/pid_namespace.h>
 #include <linux/parser.h>
@@ -108,6 +109,9 @@ static struct dentry *proc_mount(struct file_system_type *fs_type,
         } else {
                 ns = task_active_pid_ns(current);
                 options = data;
+
+                if (!current_user_ns()->may_mount_proc)
+                        return ERR_PTR(-EPERM);
         }
 
         sb = sget(fs_type, proc_test_super, proc_set_super, flags, ns);
diff --git a/fs/read_write.c b/fs/read_write.c
index a698eff457fb..e6ddc8dceb96 100644
--- a/fs/read_write.c
+++ b/fs/read_write.c
@@ -17,6 +17,7 @@
 #include <linux/splice.h>
 #include <linux/compat.h>
 #include "read_write.h"
+#include "internal.h"
 
 #include <asm/uaccess.h>
 #include <asm/unistd.h>
@@ -417,6 +418,33 @@ ssize_t do_sync_write(struct file *filp, const char __user *buf, size_t len, lof
 
 EXPORT_SYMBOL(do_sync_write);
 
+ssize_t __kernel_write(struct file *file, const char *buf, size_t count, loff_t *pos)
+{
+        mm_segment_t old_fs;
+        const char __user *p;
+        ssize_t ret;
+
+        if (!file->f_op || (!file->f_op->write && !file->f_op->aio_write))
+                return -EINVAL;
+
+        old_fs = get_fs();
+        set_fs(get_ds());
+        p = (__force const char __user *)buf;
+        if (count > MAX_RW_COUNT)
+                count =  MAX_RW_COUNT;
+        if (file->f_op->write)
+                ret = file->f_op->write(file, p, count, pos);
+        else
+                ret = do_sync_write(file, p, count, pos);
+        set_fs(old_fs);
+        if (ret > 0) {
+                fsnotify_modify(file);
+                add_wchar(current, ret);
+        }
+        inc_syscw(current);
+        return ret;
+}
+
 ssize_t vfs_write(struct file *file, const char __user *buf, size_t count, loff_t *pos)
 {
         ssize_t ret;
diff --git a/fs/splice.c b/fs/splice.c
index 718bd0056384..29e394e49ddd 100644
--- a/fs/splice.c
+++ b/fs/splice.c
@@ -31,6 +31,7 @@
 #include <linux/security.h>
 #include <linux/gfp.h>
 #include <linux/socket.h>
+#include "internal.h"
 
 /*
  * Attempt to steal a page from a pipe buffer. This should perhaps go into
@@ -1048,9 +1049,10 @@ static int write_pipe_buf(struct pipe_inode_info *pipe, struct pipe_buffer *buf,
 {
         int ret;
         void *data;
+        loff_t tmp = sd->pos;
 
         data = buf->ops->map(pipe, buf, 0);
-        ret = kernel_write(sd->u.file, data + buf->offset, sd->len, sd->pos);
+        ret = __kernel_write(sd->u.file, data + buf->offset, sd->len, &tmp);
         buf->ops->unmap(pipe, buf, data);
 
         return ret;
diff --git a/fs/sysfs/dir.c b/fs/sysfs/dir.c
index 2fbdff6be25c..e14512678c9b 100644
--- a/fs/sysfs/dir.c
+++ b/fs/sysfs/dir.c
@@ -1020,6 +1020,8 @@ static int sysfs_readdir(struct file * filp, void * dirent, filldir_t filldir)
                 ino = parent_sd->s_ino;
                 if (filldir(dirent, ".", 1, filp->f_pos, ino, DT_DIR) == 0)
                         filp->f_pos++;
+                else
+                        return 0;
         }
         if (filp->f_pos == 1) {
                 if (parent_sd->s_parent)
@@ -1028,6 +1030,8 @@ static int sysfs_readdir(struct file * filp, void * dirent, filldir_t filldir)
                         ino = parent_sd->s_ino;
                 if (filldir(dirent, "..", 2, filp->f_pos, ino, DT_DIR) == 0)
                         filp->f_pos++;
+                else
+                        return 0;
         }
         mutex_lock(&sysfs_mutex);
         for (pos = sysfs_dir_pos(ns, parent_sd, filp->f_pos, pos);
@@ -1058,10 +1062,21 @@ static int sysfs_readdir(struct file * filp, void * dirent, filldir_t filldir)
         return 0;
 }
 
+static loff_t sysfs_dir_llseek(struct file *file, loff_t offset, int whence)
+{
+        struct inode *inode = file_inode(file);
+        loff_t ret;
+
+        mutex_lock(&inode->i_mutex);
+        ret = generic_file_llseek(file, offset, whence);
+        mutex_unlock(&inode->i_mutex);
+
+        return ret;
+}
 
 const struct file_operations sysfs_dir_operations = {
         .read           = generic_read_dir,
         .readdir        = sysfs_readdir,
         .release        = sysfs_dir_release,
-        .llseek         = generic_file_llseek,
+        .llseek         = sysfs_dir_llseek,
 };
diff --git a/fs/sysfs/mount.c b/fs/sysfs/mount.c
index 8d924b5ec733..afd83273e6ce 100644
--- a/fs/sysfs/mount.c
+++ b/fs/sysfs/mount.c
@@ -19,6 +19,7 @@
 #include <linux/module.h>
 #include <linux/magic.h>
 #include <linux/slab.h>
+#include <linux/user_namespace.h>
 
 #include "sysfs.h"
 
@@ -111,6 +112,9 @@ static struct dentry *sysfs_mount(struct file_system_type *fs_type,
         struct super_block *sb;
         int error;
 
+        if (!(flags & MS_KERNMOUNT) && !current_user_ns()->may_mount_sysfs)
+                return ERR_PTR(-EPERM);
+
         info = kzalloc(sizeof(*info), GFP_KERNEL);
         if (!info)
                 return ERR_PTR(-ENOMEM);
diff --git a/include/linux/debug_locks.h b/include/linux/debug_locks.h
index a975de1ff59f..3bd46f766751 100644
--- a/include/linux/debug_locks.h
+++ b/include/linux/debug_locks.h
@@ -51,7 +51,7 @@ struct task_struct;
 extern void debug_show_all_locks(void);
 extern void debug_show_held_locks(struct task_struct *task);
 extern void debug_check_no_locks_freed(const void *from, unsigned long len);
-extern void debug_check_no_locks_held(void);
+extern void debug_check_no_locks_held(struct task_struct *task);
 #else
 static inline void debug_show_all_locks(void)
 {
@@ -67,7 +67,7 @@ debug_check_no_locks_freed(const void *from, unsigned long len)
 }
 
 static inline void
-debug_check_no_locks_held(void)
+debug_check_no_locks_held(struct task_struct *task)
 {
 }
 #endif
diff --git a/include/linux/freezer.h b/include/linux/freezer.h
index 043a5cf8b5ba..e70df40d84f6 100644
--- a/include/linux/freezer.h
+++ b/include/linux/freezer.h
@@ -3,7 +3,6 @@
 #ifndef FREEZER_H_INCLUDED
 #define FREEZER_H_INCLUDED
 
-#include <linux/debug_locks.h>
 #include <linux/sched.h>
 #include <linux/wait.h>
 #include <linux/atomic.h>
@@ -49,8 +48,6 @@ extern void thaw_kernel_threads(void);
 
 static inline bool try_to_freeze(void)
 {
-        if (!(current->flags & PF_NOFREEZE))
-                debug_check_no_locks_held();
         might_sleep();
         if (likely(!freezing(current)))
                 return false;
diff --git a/include/linux/fs_struct.h b/include/linux/fs_struct.h
index 729eded4b24f..2b93a9a5a1e6 100644
--- a/include/linux/fs_struct.h
+++ b/include/linux/fs_struct.h
@@ -50,4 +50,6 @@ static inline void get_fs_root_and_pwd(struct fs_struct *fs, struct path *root,
         spin_unlock(&fs->lock);
 }
 
+extern bool current_chrooted(void);
+
 #endif /* _LINUX_FS_STRUCT_H */
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 7acc9dc73c9f..e19ff30ad0a2 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -87,7 +87,6 @@ extern unsigned int kobjsize(const void *objp);
 #define VM_PFNMAP       0x00000400      /* Page-ranges managed without "struct page", just pure PFN */
 #define VM_DENYWRITE    0x00000800      /* ETXTBSY on write attempts.. */
 
-#define VM_POPULATE     0x00001000
 #define VM_LOCKED       0x00002000
 #define VM_IO           0x00004000      /* Memory mapped I/O or similar */
 
diff --git a/include/linux/mman.h b/include/linux/mman.h
index 61c7a87e5d2b..9aa863da287f 100644
--- a/include/linux/mman.h
+++ b/include/linux/mman.h
@@ -79,8 +79,6 @@ calc_vm_flag_bits(unsigned long flags)
 {
         return _calc_vm_trans(flags, MAP_GROWSDOWN,  VM_GROWSDOWN ) |
                _calc_vm_trans(flags, MAP_DENYWRITE,  VM_DENYWRITE ) |
-               ((flags & MAP_LOCKED) ? (VM_LOCKED | VM_POPULATE) : 0) |
-               (((flags & (MAP_POPULATE | MAP_NONBLOCK)) == MAP_POPULATE) ?
-                                                        VM_POPULATE : 0);
+               _calc_vm_trans(flags, MAP_LOCKED,     VM_LOCKED    );
 }
 #endif /* _LINUX_MMAN_H */
diff --git a/include/linux/mount.h b/include/linux/mount.h
index d7029f4a191a..73005f9957ea 100644
--- a/include/linux/mount.h
+++ b/include/linux/mount.h
@@ -47,6 +47,8 @@ struct mnt_namespace;
 
 #define MNT_INTERNAL    0x4000
 
+#define MNT_LOCK_READONLY       0x400000
+
 struct vfsmount {
         struct dentry *mnt_root;        /* root of the mounted tree */
         struct super_block *mnt_sb;     /* pointer to superblock */
diff --git a/include/linux/mxsfb.h b/include/linux/mxsfb.h
index f14943d55315..f80af8674342 100644
--- a/include/linux/mxsfb.h
+++ b/include/linux/mxsfb.h
@@ -24,8 +24,8 @@
 #define STMLCDIF_18BIT 2 /** pixel data bus to the display is of 18 bit width */
 #define STMLCDIF_24BIT 3 /** pixel data bus to the display is of 24 bit width */
 
-#define FB_SYNC_DATA_ENABLE_HIGH_ACT    (1 << 6)
-#define FB_SYNC_DOTCLK_FAILING_ACT      (1 << 7) /* failing/negtive edge sampling */
+#define MXSFB_SYNC_DATA_ENABLE_HIGH_ACT (1 << 6)
+#define MXSFB_SYNC_DOTCLK_FAILING_ACT   (1 << 7) /* failing/negtive edge sampling */
 
 struct mxsfb_platform_data {
         struct fb_videomode *mode_list;
@@ -44,6 +44,9 @@ struct mxsfb_platform_data {
                                  * allocated. If specified,fb_size must also be specified.
                                  * fb_phys must be unused by Linux.
                                  */
+        u32 sync;               /* sync mask, contains MXSFB specifics not
+                                 * carried in fb_info->var.sync
+                                 */
 };
 
 #endif /* __LINUX_MXSFB_H */
diff --git a/include/linux/thermal.h b/include/linux/thermal.h
index f0bd7f90a90d..e3c0ae9bb1fa 100644
--- a/include/linux/thermal.h
+++ b/include/linux/thermal.h
@@ -44,7 +44,7 @@
 /* Adding event notification support elements */
 #define THERMAL_GENL_FAMILY_NAME                "thermal_event"
 #define THERMAL_GENL_VERSION                    0x01
-#define THERMAL_GENL_MCAST_GROUP_NAME           "thermal_mc_group"
+#define THERMAL_GENL_MCAST_GROUP_NAME           "thermal_mc_grp"
 
 /* Default Thermal Governor */
 #if defined(CONFIG_THERMAL_DEFAULT_GOV_STEP_WISE)
diff --git a/include/linux/udp.h b/include/linux/udp.h
index 9d81de123c90..42278bbf7a88 100644
--- a/include/linux/udp.h
+++ b/include/linux/udp.h
@@ -68,6 +68,7 @@ struct udp_sock {
          * For encapsulation sockets.
          */
         int (*encap_rcv)(struct sock *sk, struct sk_buff *skb);
+        void (*encap_destroy)(struct sock *sk);
 };
 
 static inline struct udp_sock *udp_sk(const struct sock *sk)
diff --git a/include/linux/usb/hcd.h b/include/linux/usb/hcd.h
index 0a78df5f6cfd..59694b5e5e90 100644
--- a/include/linux/usb/hcd.h
+++ b/include/linux/usb/hcd.h
@@ -357,6 +357,7 @@ struct hc_driver {
                  */
         int     (*disable_usb3_lpm_timeout)(struct usb_hcd *,
                         struct usb_device *, enum usb3_link_state state);
+        int     (*find_raw_port_number)(struct usb_hcd *, int);
 };
 
 extern int usb_hcd_link_urb_to_ep(struct usb_hcd *hcd, struct urb *urb);
@@ -396,6 +397,7 @@ extern int usb_hcd_is_primary_hcd(struct usb_hcd *hcd);
 extern int usb_add_hcd(struct usb_hcd *hcd,
                 unsigned int irqnum, unsigned long irqflags);
 extern void usb_remove_hcd(struct usb_hcd *hcd);
+extern int usb_hcd_find_raw_port_number(struct usb_hcd *hcd, int port1);
 
 struct platform_device;
 extern void usb_hcd_platform_shutdown(struct platform_device *dev);
diff --git a/include/linux/user_namespace.h b/include/linux/user_namespace.h
index 4ce009324933..b6b215f13b45 100644
--- a/include/linux/user_namespace.h
+++ b/include/linux/user_namespace.h
@@ -26,6 +26,8 @@ struct user_namespace {
         kuid_t                  owner;
         kgid_t                  group;
         unsigned int            proc_inum;
+        bool                    may_mount_sysfs;
+        bool                    may_mount_proc;
 };
 
 extern struct user_namespace init_user_ns;
@@ -82,4 +84,6 @@ static inline void put_user_ns(struct user_namespace *ns)
 
 #endif
 
+void update_mnt_policy(struct user_namespace *userns);
+
 #endif /* _LINUX_USER_H */
diff --git a/include/net/flow_keys.h b/include/net/flow_keys.h
index 80461c1ae9ef..bb8271d487b7 100644
--- a/include/net/flow_keys.h
+++ b/include/net/flow_keys.h
@@ -9,6 +9,7 @@ struct flow_keys {
                 __be32 ports;
                 __be16 port16[2];
         };
+        u16 thoff;
         u8 ip_proto;
 };
 
diff --git a/include/net/ip_vs.h b/include/net/ip_vs.h
index 68c69d54d392..fce8e6b66d55 100644
--- a/include/net/ip_vs.h
+++ b/include/net/ip_vs.h
@@ -976,6 +976,7 @@ struct netns_ipvs {
         int                     sysctl_sync_retries;
         int                     sysctl_nat_icmp_send;
         int                     sysctl_pmtu_disc;
+        int                     sysctl_backup_only;
 
         /* ip_vs_lblc */
         int                     sysctl_lblc_expiration;
@@ -1067,6 +1068,12 @@ static inline int sysctl_pmtu_disc(struct netns_ipvs *ipvs)
         return ipvs->sysctl_pmtu_disc;
 }
 
+static inline int sysctl_backup_only(struct netns_ipvs *ipvs)
+{
+        return ipvs->sync_state & IP_VS_STATE_BACKUP &&
+               ipvs->sysctl_backup_only;
+}
+
 #else
 
 static inline int sysctl_sync_threshold(struct netns_ipvs *ipvs)
@@ -1114,6 +1121,11 @@ static inline int sysctl_pmtu_disc(struct netns_ipvs *ipvs)
         return 1;
 }
 
+static inline int sysctl_backup_only(struct netns_ipvs *ipvs)
+{
+        return 0;
+}
+
 #endif
 
 /*
diff --git a/include/net/ipip.h b/include/net/ipip.h
index fd19625ff99d..982141c15200 100644
--- a/include/net/ipip.h
+++ b/include/net/ipip.h
@@ -77,15 +77,11 @@ static inline void tunnel_ip_select_ident(struct sk_buff *skb,
 {
         struct iphdr *iph = ip_hdr(skb);
 
-        if (iph->frag_off & htons(IP_DF))
-                iph->id = 0;
-        else {
-                /* Use inner packet iph-id if possible. */
-                if (skb->protocol == htons(ETH_P_IP) && old_iph->id)
-                        iph->id = old_iph->id;
-                else
-                        __ip_select_ident(iph, dst,
-                                          (skb_shinfo(skb)->gso_segs ?: 1) - 1);
-        }
+        /* Use inner packet iph-id if possible. */
+        if (skb->protocol == htons(ETH_P_IP) && old_iph->id)
+                iph->id = old_iph->id;
+        else
+                __ip_select_ident(iph, dst,
+                                  (skb_shinfo(skb)->gso_segs ?: 1) - 1);
 }
 #endif
diff --git a/include/uapi/linux/packet_diag.h b/include/uapi/linux/packet_diag.h
index 93f5fa94a431..afafd703ad92 100644
--- a/include/uapi/linux/packet_diag.h
+++ b/include/uapi/linux/packet_diag.h
@@ -33,9 +33,11 @@ enum {
         PACKET_DIAG_TX_RING,
         PACKET_DIAG_FANOUT,
 
-        PACKET_DIAG_MAX,
+        __PACKET_DIAG_MAX,
 };
 
+#define PACKET_DIAG_MAX (__PACKET_DIAG_MAX - 1)
+
 struct packet_diag_info {
         __u32   pdi_index;
         __u32   pdi_version;
diff --git a/include/uapi/linux/unix_diag.h b/include/uapi/linux/unix_diag.h
index b8a24941db21..b9e2a6a7446f 100644
--- a/include/uapi/linux/unix_diag.h
+++ b/include/uapi/linux/unix_diag.h
@@ -39,9 +39,11 @@ enum {
         UNIX_DIAG_MEMINFO,
         UNIX_DIAG_SHUTDOWN,
 
-        UNIX_DIAG_MAX,
+        __UNIX_DIAG_MAX,
 };
 
+#define UNIX_DIAG_MAX (__UNIX_DIAG_MAX - 1)
+
 struct unix_diag_vfs {
         __u32   udiag_vfs_ino;
         __u32   udiag_vfs_dev;
diff --git a/include/xen/interface/io/blkif.h b/include/xen/interface/io/blkif.h
index 01c3d62436ef..ffd4652de91c 100644
--- a/include/xen/interface/io/blkif.h
+++ b/include/xen/interface/io/blkif.h
@@ -138,11 +138,21 @@ struct blkif_request_discard {
         uint8_t        _pad3;
 } __attribute__((__packed__));
 
+struct blkif_request_other {
+        uint8_t      _pad1;
+        blkif_vdev_t _pad2;        /* only for read/write requests         */
+#ifdef CONFIG_X86_64
+        uint32_t     _pad3;        /* offsetof(blkif_req..,u.other.id)==8*/
+#endif
+        uint64_t     id;           /* private guest value, echoed in resp  */
+} __attribute__((__packed__));
+
 struct blkif_request {
         uint8_t        operation;    /* BLKIF_OP_???                         */
         union {
                 struct blkif_request_rw rw;
                 struct blkif_request_discard discard;
+                struct blkif_request_other other;
         } u;
 } __attribute__((__packed__));
 
diff --git a/include/xen/interface/physdev.h b/include/xen/interface/physdev.h
index 1844d31f4552..7000bb1f6e96 100644
--- a/include/xen/interface/physdev.h
+++ b/include/xen/interface/physdev.h
@@ -251,6 +251,12 @@ struct physdev_pci_device_add {
 
 #define PHYSDEVOP_pci_device_remove     26
 #define PHYSDEVOP_restore_msi_ext       27
+/*
+ * Dom0 should use these two to announce MMIO resources assigned to
+ * MSI-X capable devices won't (prepare) or may (release) change.
+ */
+#define PHYSDEVOP_prepare_msix          30
+#define PHYSDEVOP_release_msix          31
 struct physdev_pci_device {
     /* IN */
     uint16_t seg;
diff --git a/ipc/mqueue.c b/ipc/mqueue.c
index 3953fda2e8bd..e4e47f647446 100644
--- a/ipc/mqueue.c
+++ b/ipc/mqueue.c
@@ -330,8 +330,16 @@ static struct dentry *mqueue_mount(struct file_system_type *fs_type,
                          int flags, const char *dev_name,
                          void *data)
 {
-        if (!(flags & MS_KERNMOUNT))
-                data = current->nsproxy->ipc_ns;
+        if (!(flags & MS_KERNMOUNT)) {
+                struct ipc_namespace *ns = current->nsproxy->ipc_ns;
+                /* Don't allow mounting unless the caller has CAP_SYS_ADMIN
+                 * over the ipc namespace.
+                 */
+                if (!ns_capable(ns->user_ns, CAP_SYS_ADMIN))
+                        return ERR_PTR(-EPERM);
+
+                data = ns;
+        }
         return mount_ns(fs_type, flags, data, mqueue_fill_super);
 }
 
diff --git a/kernel/exit.c b/kernel/exit.c
index 51e485ca9935..60bc027c61c3 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -835,7 +835,7 @@ void do_exit(long code)
         /*
          * Make sure we are holding no locks:
          */
-        debug_check_no_locks_held();
+        debug_check_no_locks_held(tsk);
         /*
          * We can do this unlocked here. The futex code uses this flag
          * just to verify whether the pi state cleanup has been done
diff --git a/kernel/lockdep.c b/kernel/lockdep.c
index 259db207b5d9..8a0efac4f99d 100644
--- a/kernel/lockdep.c
+++ b/kernel/lockdep.c
@@ -4088,7 +4088,7 @@ void debug_check_no_locks_freed(const void *mem_from, unsigned long mem_len)
 }
 EXPORT_SYMBOL_GPL(debug_check_no_locks_freed);
 
-static void print_held_locks_bug(void)
+static void print_held_locks_bug(struct task_struct *curr)
 {
         if (!debug_locks_off())
                 return;
@@ -4097,21 +4097,22 @@ static void print_held_locks_bug(void)
 
         printk("\n");
         printk("=====================================\n");
-        printk("[ BUG: %s/%d still has locks held! ]\n",
-               current->comm, task_pid_nr(current));
+        printk("[ BUG: lock held at task exit time! ]\n");
         print_kernel_ident();
         printk("-------------------------------------\n");
-        lockdep_print_held_locks(current);
+        printk("%s/%d is exiting with locks still held!\n",
+                curr->comm, task_pid_nr(curr));
+        lockdep_print_held_locks(curr);
+
         printk("\nstack backtrace:\n");
         dump_stack();
 }
 
-void debug_check_no_locks_held(void)
+void debug_check_no_locks_held(struct task_struct *task)
 {
-        if (unlikely(current->lockdep_depth > 0))
-                print_held_locks_bug();
+        if (unlikely(task->lockdep_depth > 0))
+                print_held_locks_bug(task);
 }
-EXPORT_SYMBOL_GPL(debug_check_no_locks_held);
 
 void debug_show_all_locks(void)
 {
diff --git a/kernel/pid_namespace.c b/kernel/pid_namespace.c
index c1c3dc1c6023..bea15bdf82b0 100644
--- a/kernel/pid_namespace.c
+++ b/kernel/pid_namespace.c
@@ -181,6 +181,7 @@ void zap_pid_ns_processes(struct pid_namespace *pid_ns)
         int nr;
         int rc;
         struct task_struct *task, *me = current;
+        int init_pids = thread_group_leader(me) ? 1 : 2;
 
         /* Don't allow any more processes into the pid namespace */
         disable_pid_allocation(pid_ns);
@@ -230,7 +231,7 @@ void zap_pid_ns_processes(struct pid_namespace *pid_ns)
          */
         for (;;) {
                 set_current_state(TASK_UNINTERRUPTIBLE);
-                if (pid_ns->nr_hashed == 1)
+                if (pid_ns->nr_hashed == init_pids)
                         break;
                 schedule();
         }
diff --git a/kernel/time/tick-broadcast.c b/kernel/time/tick-broadcast.c
index 2fb8cb88df8d..7f32fe0e52cd 100644
--- a/kernel/time/tick-broadcast.c
+++ b/kernel/time/tick-broadcast.c
@@ -67,7 +67,8 @@ static void tick_broadcast_start_periodic(struct clock_event_device *bc)
  */
 int tick_check_broadcast_device(struct clock_event_device *dev)
 {
-        if ((tick_broadcast_device.evtdev &&
+        if ((dev->features & CLOCK_EVT_FEAT_DUMMY) ||
+            (tick_broadcast_device.evtdev &&
              tick_broadcast_device.evtdev->rating >= dev->rating) ||
              (dev->features & CLOCK_EVT_FEAT_C3STOP))
                 return 0;
diff --git a/kernel/user.c b/kernel/user.c
index e81978e8c03b..8e635a18ab52 100644
--- a/kernel/user.c
+++ b/kernel/user.c
@@ -51,6 +51,8 @@ struct user_namespace init_user_ns = {
         .owner = GLOBAL_ROOT_UID,
         .group = GLOBAL_ROOT_GID,
         .proc_inum = PROC_USER_INIT_INO,
+        .may_mount_sysfs = true,
+        .may_mount_proc = true,
 };
 EXPORT_SYMBOL_GPL(init_user_ns);
 
diff --git a/kernel/user_namespace.c b/kernel/user_namespace.c
index b14f4d342043..a54f26f82eb2 100644
--- a/kernel/user_namespace.c
+++ b/kernel/user_namespace.c
@@ -61,6 +61,15 @@ int create_user_ns(struct cred *new)
         kgid_t group = new->egid;
         int ret;
 
+        /*
+         * Verify that we can not violate the policy of which files
+         * may be accessed that is specified by the root directory,
+         * by verifing that the root directory is at the root of the
+         * mount namespace which allows all files to be accessed.
+         */
+        if (current_chrooted())
+                return -EPERM;
+
         /* The creator needs a mapping in the parent user namespace
          * or else we won't be able to reasonably tell userspace who
          * created a user_namespace.
@@ -87,6 +96,8 @@ int create_user_ns(struct cred *new)
 
         set_cred_user_ns(new, ns);
 
+        update_mnt_policy(ns);
+
         return 0;
 }
 
diff --git a/mm/fremap.c b/mm/fremap.c
index 4723ac8d2fc2..87da3590c61e 100644
--- a/mm/fremap.c
+++ b/mm/fremap.c
@@ -204,10 +204,8 @@ get_write_lock:
                         unsigned long addr;
                         struct file *file = get_file(vma->vm_file);
 
-                        vm_flags = vma->vm_flags;
-                        if (!(flags & MAP_NONBLOCK))
-                                vm_flags |= VM_POPULATE;
-                        addr = mmap_region(file, start, size, vm_flags, pgoff);
+                        addr = mmap_region(file, start, size,
+                                        vma->vm_flags, pgoff);
                         fput(file);
                         if (IS_ERR_VALUE(addr)) {
                                 err = addr;
@@ -226,12 +224,6 @@ get_write_lock:
                 mutex_unlock(&mapping->i_mmap_mutex);
         }
 
-        if (!(flags & MAP_NONBLOCK) && !(vma->vm_flags & VM_POPULATE)) {
-                if (!has_write_lock)
-                        goto get_write_lock;
-                vma->vm_flags |= VM_POPULATE;
-        }
-
         if (vma->vm_flags & VM_LOCKED) {
                 /*
                  * drop PG_Mlocked flag for over-mapped range
diff --git a/mm/mlock.c b/mm/mlock.c
index 1c5e33fce639..79b7cf7d1bca 100644
--- a/mm/mlock.c
+++ b/mm/mlock.c
@@ -358,7 +358,7 @@ static int do_mlock(unsigned long start, size_t len, int on)
 
                 newflags = vma->vm_flags & ~VM_LOCKED;
                 if (on)
-                        newflags |= VM_LOCKED | VM_POPULATE;
+                        newflags |= VM_LOCKED;
 
                 tmp = vma->vm_end;
                 if (tmp > end)
@@ -418,8 +418,7 @@ int __mm_populate(unsigned long start, unsigned long len, int ignore_errors)
                  * range with the first VMA. Also, skip undesirable VMA types.
                  */
                 nend = min(end, vma->vm_end);
-                if ((vma->vm_flags & (VM_IO | VM_PFNMAP | VM_POPULATE)) !=
-                    VM_POPULATE)
+                if (vma->vm_flags & (VM_IO | VM_PFNMAP))
                         continue;
                 if (nstart < vma->vm_start)
                         nstart = vma->vm_start;
@@ -492,9 +491,9 @@ static int do_mlockall(int flags)
         struct vm_area_struct * vma, * prev = NULL;
 
         if (flags & MCL_FUTURE)
-                current->mm->def_flags |= VM_LOCKED | VM_POPULATE;
+                current->mm->def_flags |= VM_LOCKED;
         else
-                current->mm->def_flags &= ~(VM_LOCKED | VM_POPULATE);
+                current->mm->def_flags &= ~VM_LOCKED;
         if (flags == MCL_FUTURE)
                 goto out;
 
@@ -503,7 +502,7 @@ static int do_mlockall(int flags)
 
                 newflags = vma->vm_flags & ~VM_LOCKED;
                 if (flags & MCL_CURRENT)
-                        newflags |= VM_LOCKED | VM_POPULATE;
+                        newflags |= VM_LOCKED;
 
                 /* Ignore errors */
                 mlock_fixup(vma, &prev, vma->vm_start, vma->vm_end, newflags);
diff --git a/mm/mmap.c b/mm/mmap.c
index 2664a47cec93..6466699b16cb 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -1306,7 +1306,9 @@ unsigned long do_mmap_pgoff(struct file *file, unsigned long addr,
         }
 
         addr = mmap_region(file, addr, len, vm_flags, pgoff);
-        if (!IS_ERR_VALUE(addr) && (vm_flags & VM_POPULATE))
+        if (!IS_ERR_VALUE(addr) &&
+            ((vm_flags & VM_LOCKED) ||
+             (flags & (MAP_POPULATE | MAP_NONBLOCK)) == MAP_POPULATE))
                 *populate = len;
         return addr;
 }
diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c
index a18714469bf7..85addcd9372b 100644
--- a/net/8021q/vlan.c
+++ b/net/8021q/vlan.c
@@ -86,13 +86,6 @@ void unregister_vlan_dev(struct net_device *dev, struct list_head *head)
 
         grp = &vlan_info->grp;
 
-        /* Take it out of our own structures, but be sure to interlock with
-         * HW accelerating devices or SW vlan input packet processing if
-         * VLAN is not 0 (leave it there for 802.1p).
-         */
-        if (vlan_id)
-                vlan_vid_del(real_dev, vlan_id);
-
         grp->nr_vlan_devs--;
 
         if (vlan->flags & VLAN_FLAG_MVRP)
@@ -114,6 +107,13 @@ void unregister_vlan_dev(struct net_device *dev, struct list_head *head)
                 vlan_gvrp_uninit_applicant(real_dev);
         }
 
+        /* Take it out of our own structures, but be sure to interlock with
+         * HW accelerating devices or SW vlan input packet processing if
+         * VLAN is not 0 (leave it there for 802.1p).
+         */
+        if (vlan_id)
+                vlan_vid_del(real_dev, vlan_id);
+
         /* Get rid of the vlan's reference to real_dev */
         dev_put(real_dev);
 }
diff --git a/net/bluetooth/sco.c b/net/bluetooth/sco.c
index 79d87d8d4f51..fad0302bdb32 100644
--- a/net/bluetooth/sco.c
+++ b/net/bluetooth/sco.c
@@ -359,6 +359,7 @@ static void __sco_sock_close(struct sock *sk)
                         sco_chan_del(sk, ECONNRESET);
                 break;
 
+        case BT_CONNECT2:
         case BT_CONNECT:
         case BT_DISCONN:
                 sco_chan_del(sk, ECONNRESET);
diff --git a/net/bridge/br_fdb.c b/net/bridge/br_fdb.c
index b0812c91c0f0..bab338e6270d 100644
--- a/net/bridge/br_fdb.c
+++ b/net/bridge/br_fdb.c
@@ -423,7 +423,7 @@ static int fdb_insert(struct net_bridge *br, struct net_bridge_port *source,
                         return 0;
                 br_warn(br, "adding interface %s with same address "
                        "as a received packet\n",
-                       source->dev->name);
+                       source ? source->dev->name : br->dev->name);
                 fdb_delete(br, fdb);
         }
 
diff --git a/net/core/dev.c b/net/core/dev.c
index d540ced1f6c6..b13e5c766c11 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1545,7 +1545,6 @@ void net_enable_timestamp(void)
                 return;
         }
 #endif
-        WARN_ON(in_interrupt());
         static_key_slow_inc(&netstamp_needed);
 }
 EXPORT_SYMBOL(net_enable_timestamp);
diff --git a/net/core/flow_dissector.c b/net/core/flow_dissector.c
index 9d4c7201400d..e187bf06d673 100644
--- a/net/core/flow_dissector.c
+++ b/net/core/flow_dissector.c
@@ -140,6 +140,8 @@ ipv6:
                         flow->ports = *ports;
         }
 
+        flow->thoff = (u16) nhoff;
+
         return true;
 }
 EXPORT_SYMBOL(skb_flow_dissect);
diff --git a/net/core/scm.c b/net/core/scm.c
index 905dcc6ad1e3..2dc6cdaaae8a 100644
--- a/net/core/scm.c
+++ b/net/core/scm.c
@@ -24,6 +24,7 @@
 #include <linux/interrupt.h>
 #include <linux/netdevice.h>
 #include <linux/security.h>
+#include <linux/pid_namespace.h>
 #include <linux/pid.h>
 #include <linux/nsproxy.h>
 #include <linux/slab.h>
@@ -52,7 +53,8 @@ static __inline__ int scm_check_creds(struct ucred *creds)
         if (!uid_valid(uid) || !gid_valid(gid))
                 return -EINVAL;
 
-        if ((creds->pid == task_tgid_vnr(current) || nsown_capable(CAP_SYS_ADMIN)) &&
+        if ((creds->pid == task_tgid_vnr(current) ||
+             ns_capable(current->nsproxy->pid_ns->user_ns, CAP_SYS_ADMIN)) &&
             ((uid_eq(uid, cred->uid)   || uid_eq(uid, cred->euid) ||
               uid_eq(uid, cred->suid)) || nsown_capable(CAP_SETUID)) &&
             ((gid_eq(gid, cred->gid)   || gid_eq(gid, cred->egid) ||
diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index 68f6a94f7661..c929d9c1c4b6 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -1333,8 +1333,7 @@ static struct sk_buff *inet_gso_segment(struct sk_buff *skb,
                                 iph->frag_off |= htons(IP_MF);
                         offset += (skb->len - skb->mac_len - iph->ihl * 4);
                 } else  {
-                        if (!(iph->frag_off & htons(IP_DF)))
-                                iph->id = htons(id++);
+                        iph->id = htons(id++);
                 }
                 iph->tot_len = htons(skb->len - skb->mac_len);
                 iph->check = 0;
diff --git a/net/ipv4/ipconfig.c b/net/ipv4/ipconfig.c
index 98cbc6877019..bf6c5cf31aed 100644
--- a/net/ipv4/ipconfig.c
+++ b/net/ipv4/ipconfig.c
@@ -1522,7 +1522,8 @@ static int __init ip_auto_config(void)
                 }
         for (i++; i < CONF_NAMESERVERS_MAX; i++)
                 if (ic_nameservers[i] != NONE)
-                        pr_cont(", nameserver%u=%pI4\n", i, &ic_nameservers[i]);
+                        pr_cont(", nameserver%u=%pI4", i, &ic_nameservers[i]);
+        pr_cont("\n");
 #endif /* !SILENT */
 
         return 0;
diff --git a/net/ipv4/netfilter/Kconfig b/net/ipv4/netfilter/Kconfig
index ce2d43e1f09f..0d755c50994b 100644
--- a/net/ipv4/netfilter/Kconfig
+++ b/net/ipv4/netfilter/Kconfig
@@ -36,19 +36,6 @@ config NF_CONNTRACK_PROC_COMPAT
 
           If unsure, say Y.
 
-config IP_NF_QUEUE
-        tristate "IP Userspace queueing via NETLINK (OBSOLETE)"
-        depends on NETFILTER_ADVANCED
-        help
-          Netfilter has the ability to queue packets to user space: the
-          netlink device can be used to access them using this driver.
-
-          This option enables the old IPv4-only "ip_queue" implementation
-          which has been obsoleted by the new "nfnetlink_queue" code (see
-          CONFIG_NETFILTER_NETLINK_QUEUE).
-
-          To compile it as a module, choose M here.  If unsure, say N.
-
 config IP_NF_IPTABLES
         tristate "IP tables support (required for filtering/masq/NAT)"
         default m if NETFILTER_ADVANCED=n
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 0d9bdacce99f..3bd55bad230a 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -2059,11 +2059,8 @@ void tcp_enter_loss(struct sock *sk, int how)
         if (tcp_is_reno(tp))
                 tcp_reset_reno_sack(tp);
 
-        if (!how) {
-                /* Push undo marker, if it was plain RTO and nothing
-                 * was retransmitted. */
-                tp->undo_marker = tp->snd_una;
-        } else {
+        tp->undo_marker = tp->snd_una;
+        if (how) {
                 tp->sacked_out = 0;
                 tp->fackets_out = 0;
         }
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index 817fbb396bc8..5d0b4387cba6 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -1809,8 +1809,11 @@ static bool tcp_tso_should_defer(struct sock *sk, struct sk_buff *skb)
                         goto send_now;
         }
 
-        /* Ok, it looks like it is advisable to defer.  */
-        tp->tso_deferred = 1 | (jiffies << 1);
+        /* Ok, it looks like it is advisable to defer.
+         * Do not rearm the timer if already set to not break TCP ACK clocking.
+         */
+        if (!tp->tso_deferred)
+                tp->tso_deferred = 1 | (jiffies << 1);
 
         return true;
 
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 265c42cf963c..0a073a263720 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -1762,9 +1762,16 @@ int udp_rcv(struct sk_buff *skb)
 
 void udp_destroy_sock(struct sock *sk)
 {
+        struct udp_sock *up = udp_sk(sk);
         bool slow = lock_sock_fast(sk);
         udp_flush_pending_frames(sk);
         unlock_sock_fast(sk, slow);
+        if (static_key_false(&udp_encap_needed) && up->encap_type) {
+                void (*encap_destroy)(struct sock *sk);
+                encap_destroy = ACCESS_ONCE(up->encap_destroy);
+                if (encap_destroy)
+                        encap_destroy(sk);
+        }
 }
 
 /*
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index f2c7e615f902..26512250e095 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -4784,26 +4784,20 @@ static void addrconf_sysctl_unregister(struct inet6_dev *idev)
 
 static int __net_init addrconf_init_net(struct net *net)
 {
-        int err;
+        int err = -ENOMEM;
         struct ipv6_devconf *all, *dflt;
 
-        err = -ENOMEM;
-        all = &ipv6_devconf;
-        dflt = &ipv6_devconf_dflt;
+        all = kmemdup(&ipv6_devconf, sizeof(ipv6_devconf), GFP_KERNEL);
+        if (all == NULL)
+                goto err_alloc_all;
 
-        if (!net_eq(net, &init_net)) {
-                all = kmemdup(all, sizeof(ipv6_devconf), GFP_KERNEL);
-                if (all == NULL)
-                        goto err_alloc_all;
+        dflt = kmemdup(&ipv6_devconf_dflt, sizeof(ipv6_devconf_dflt), GFP_KERNEL);
+        if (dflt == NULL)
+                goto err_alloc_dflt;
 
-                dflt = kmemdup(dflt, sizeof(ipv6_devconf_dflt), GFP_KERNEL);
-                if (dflt == NULL)
-                        goto err_alloc_dflt;
-        } else {
-                /* these will be inherited by all namespaces */
-                dflt->autoconf = ipv6_defaults.autoconf;
-                dflt->disable_ipv6 = ipv6_defaults.disable_ipv6;
-        }
+        /* these will be inherited by all namespaces */
+        dflt->autoconf = ipv6_defaults.autoconf;
+        dflt->disable_ipv6 = ipv6_defaults.disable_ipv6;
 
         net->ipv6.devconf_all = all;
         net->ipv6.devconf_dflt = dflt;
diff --git a/net/ipv6/netfilter/ip6t_NPT.c b/net/ipv6/netfilter/ip6t_NPT.c
index 83acc1405a18..33608c610276 100644
--- a/net/ipv6/netfilter/ip6t_NPT.c
+++ b/net/ipv6/netfilter/ip6t_NPT.c
@@ -114,6 +114,7 @@ ip6t_dnpt_tg(struct sk_buff *skb, const struct xt_action_param *par)
 static struct xt_target ip6t_npt_target_reg[] __read_mostly = {
         {
                 .name           = "SNPT",
+                .table          = "mangle",
                 .target         = ip6t_snpt_tg,
                 .targetsize     = sizeof(struct ip6t_npt_tginfo),
                 .checkentry     = ip6t_npt_checkentry,
@@ -124,6 +125,7 @@ static struct xt_target ip6t_npt_target_reg[] __read_mostly = {
         },
         {
                 .name           = "DNPT",
+                .table          = "mangle",
                 .target         = ip6t_dnpt_tg,
                 .targetsize     = sizeof(struct ip6t_npt_tginfo),
                 .checkentry     = ip6t_npt_checkentry,
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index 599e1ba6d1ce..d8e5e852fc7a 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -1285,10 +1285,18 @@ do_confirm:
 
 void udpv6_destroy_sock(struct sock *sk)
 {
+        struct udp_sock *up = udp_sk(sk);
         lock_sock(sk);
         udp_v6_flush_pending_frames(sk);
         release_sock(sk);
 
+        if (static_key_false(&udpv6_encap_needed) && up->encap_type) {
+                void (*encap_destroy)(struct sock *sk);
+                encap_destroy = ACCESS_ONCE(up->encap_destroy);
+                if (encap_destroy)
+                        encap_destroy(sk);
+        }
+
         inet6_destroy_sock(sk);
 }
 
diff --git a/net/irda/af_irda.c b/net/irda/af_irda.c
index d07e3a626446..d28e7f014cc6 100644
--- a/net/irda/af_irda.c
+++ b/net/irda/af_irda.c
@@ -2583,8 +2583,10 @@ bed:
                                     NULL, NULL, NULL);
 
                 /* Check if the we got some results */
-                if (!self->cachedaddr)
-                        return -EAGAIN;         /* Didn't find any devices */
+                if (!self->cachedaddr) {
+                        err = -EAGAIN;          /* Didn't find any devices */
+                        goto out;
+                }
                 daddr = self->cachedaddr;
                 /* Cleanup */
                 self->cachedaddr = 0;
diff --git a/net/l2tp/l2tp_core.c b/net/l2tp/l2tp_core.c
index d36875f3427e..8aecf5df6656 100644
--- a/net/l2tp/l2tp_core.c
+++ b/net/l2tp/l2tp_core.c
@@ -114,7 +114,6 @@ struct l2tp_net {
 
 static void l2tp_session_set_header_len(struct l2tp_session *session, int version);
 static void l2tp_tunnel_free(struct l2tp_tunnel *tunnel);
-static void l2tp_tunnel_closeall(struct l2tp_tunnel *tunnel);
 
 static inline struct l2tp_net *l2tp_pernet(struct net *net)
 {
@@ -192,6 +191,7 @@ struct sock *l2tp_tunnel_sock_lookup(struct l2tp_tunnel *tunnel)
         } else {
                 /* Socket is owned by kernelspace */
                 sk = tunnel->sock;
+                sock_hold(sk);
         }
 
 out:
@@ -210,6 +210,7 @@ void l2tp_tunnel_sock_put(struct sock *sk)
                 }
                 sock_put(sk);
         }
+        sock_put(sk);
 }
 EXPORT_SYMBOL_GPL(l2tp_tunnel_sock_put);
 
@@ -373,10 +374,8 @@ static void l2tp_recv_queue_skb(struct l2tp_session *session, struct sk_buff *sk
         struct sk_buff *skbp;
         struct sk_buff *tmp;
         u32 ns = L2TP_SKB_CB(skb)->ns;
-        struct l2tp_stats *sstats;
 
         spin_lock_bh(&session->reorder_q.lock);
-        sstats = &session->stats;
         skb_queue_walk_safe(&session->reorder_q, skbp, tmp) {
                 if (L2TP_SKB_CB(skbp)->ns > ns) {
                         __skb_queue_before(&session->reorder_q, skbp, skb);
@@ -384,9 +383,7 @@ static void l2tp_recv_queue_skb(struct l2tp_session *session, struct sk_buff *sk
                                  "%s: pkt %hu, inserted before %hu, reorder_q len=%d\n",
                                  session->name, ns, L2TP_SKB_CB(skbp)->ns,
                                  skb_queue_len(&session->reorder_q));
-                        u64_stats_update_begin(&sstats->syncp);
-                        sstats->rx_oos_packets++;
-                        u64_stats_update_end(&sstats->syncp);
+                        atomic_long_inc(&session->stats.rx_oos_packets);
                         goto out;
                 }
         }
@@ -403,23 +400,16 @@ static void l2tp_recv_dequeue_skb(struct l2tp_session *session, struct sk_buff *
 {
         struct l2tp_tunnel *tunnel = session->tunnel;
         int length = L2TP_SKB_CB(skb)->length;
-        struct l2tp_stats *tstats, *sstats;
 
         /* We're about to requeue the skb, so return resources
          * to its current owner (a socket receive buffer).
          */
         skb_orphan(skb);
 
-        tstats = &tunnel->stats;
-        u64_stats_update_begin(&tstats->syncp);
-        sstats = &session->stats;
-        u64_stats_update_begin(&sstats->syncp);
-        tstats->rx_packets++;
-        tstats->rx_bytes += length;
-        sstats->rx_packets++;
-        sstats->rx_bytes += length;
-        u64_stats_update_end(&tstats->syncp);
-        u64_stats_update_end(&sstats->syncp);
+        atomic_long_inc(&tunnel->stats.rx_packets);
+        atomic_long_add(length, &tunnel->stats.rx_bytes);
+        atomic_long_inc(&session->stats.rx_packets);
+        atomic_long_add(length, &session->stats.rx_bytes);
 
         if (L2TP_SKB_CB(skb)->has_seq) {
                 /* Bump our Nr */
@@ -450,7 +440,6 @@ static void l2tp_recv_dequeue(struct l2tp_session *session)
 {
         struct sk_buff *skb;
         struct sk_buff *tmp;
-        struct l2tp_stats *sstats;
 
         /* If the pkt at the head of the queue has the nr that we
          * expect to send up next, dequeue it and any other
@@ -458,13 +447,10 @@ static void l2tp_recv_dequeue(struct l2tp_session *session)
          */
 start:
         spin_lock_bh(&session->reorder_q.lock);
-        sstats = &session->stats;
         skb_queue_walk_safe(&session->reorder_q, skb, tmp) {
                 if (time_after(jiffies, L2TP_SKB_CB(skb)->expires)) {
-                        u64_stats_update_begin(&sstats->syncp);
-                        sstats->rx_seq_discards++;
-                        sstats->rx_errors++;
-                        u64_stats_update_end(&sstats->syncp);
+                        atomic_long_inc(&session->stats.rx_seq_discards);
+                        atomic_long_inc(&session->stats.rx_errors);
                         l2tp_dbg(session, L2TP_MSG_SEQ,
                                  "%s: oos pkt %u len %d discarded (too old), waiting for %u, reorder_q_len=%d\n",
                                  session->name, L2TP_SKB_CB(skb)->ns,
@@ -623,7 +609,6 @@ void l2tp_recv_common(struct l2tp_session *session, struct sk_buff *skb,
         struct l2tp_tunnel *tunnel = session->tunnel;
         int offset;
         u32 ns, nr;
-        struct l2tp_stats *sstats = &session->stats;
 
         /* The ref count is increased since we now hold a pointer to
          * the session. Take care to decrement the refcnt when exiting
@@ -640,9 +625,7 @@ void l2tp_recv_common(struct l2tp_session *session, struct sk_buff *skb,
                                   "%s: cookie mismatch (%u/%u). Discarding.\n",
                                   tunnel->name, tunnel->tunnel_id,
                                   session->session_id);
-                        u64_stats_update_begin(&sstats->syncp);
-                        sstats->rx_cookie_discards++;
-                        u64_stats_update_end(&sstats->syncp);
+                        atomic_long_inc(&session->stats.rx_cookie_discards);
                         goto discard;
                 }
                 ptr += session->peer_cookie_len;
@@ -711,9 +694,7 @@ void l2tp_recv_common(struct l2tp_session *session, struct sk_buff *skb,
                         l2tp_warn(session, L2TP_MSG_SEQ,
                                   "%s: recv data has no seq numbers when required. Discarding.\n",
                                   session->name);
-                        u64_stats_update_begin(&sstats->syncp);
-                        sstats->rx_seq_discards++;
-                        u64_stats_update_end(&sstats->syncp);
+                        atomic_long_inc(&session->stats.rx_seq_discards);
                         goto discard;
                 }
 
@@ -732,9 +713,7 @@ void l2tp_recv_common(struct l2tp_session *session, struct sk_buff *skb,
                         l2tp_warn(session, L2TP_MSG_SEQ,
                                   "%s: recv data has no seq numbers when required. Discarding.\n",
                                   session->name);
-                        u64_stats_update_begin(&sstats->syncp);
-                        sstats->rx_seq_discards++;
-                        u64_stats_update_end(&sstats->syncp);
+                        atomic_long_inc(&session->stats.rx_seq_discards);
                         goto discard;
                 }
         }
@@ -788,9 +767,7 @@ void l2tp_recv_common(struct l2tp_session *session, struct sk_buff *skb,
                          * packets
                          */
                         if (L2TP_SKB_CB(skb)->ns != session->nr) {
-                                u64_stats_update_begin(&sstats->syncp);
-                                sstats->rx_seq_discards++;
-                                u64_stats_update_end(&sstats->syncp);
+                                atomic_long_inc(&session->stats.rx_seq_discards);
                                 l2tp_dbg(session, L2TP_MSG_SEQ,
                                          "%s: oos pkt %u len %d discarded, waiting for %u, reorder_q_len=%d\n",
                                          session->name, L2TP_SKB_CB(skb)->ns,
@@ -816,9 +793,7 @@ void l2tp_recv_common(struct l2tp_session *session, struct sk_buff *skb,
         return;
 
 discard:
-        u64_stats_update_begin(&sstats->syncp);
-        sstats->rx_errors++;
-        u64_stats_update_end(&sstats->syncp);
+        atomic_long_inc(&session->stats.rx_errors);
         kfree_skb(skb);
 
         if (session->deref)
@@ -828,6 +803,23 @@ discard:
 }
 EXPORT_SYMBOL(l2tp_recv_common);
 
+/* Drop skbs from the session's reorder_q
+ */
+int l2tp_session_queue_purge(struct l2tp_session *session)
+{
+        struct sk_buff *skb = NULL;
+        BUG_ON(!session);
+        BUG_ON(session->magic != L2TP_SESSION_MAGIC);
+        while ((skb = skb_dequeue(&session->reorder_q))) {
+                atomic_long_inc(&session->stats.rx_errors);
+                kfree_skb(skb);
+                if (session->deref)
+                        (*session->deref)(session);
+        }
+        return 0;
+}
+EXPORT_SYMBOL_GPL(l2tp_session_queue_purge);
+
 /* Internal UDP receive frame. Do the real work of receiving an L2TP data frame
  * here. The skb is not on a list when we get here.
  * Returns 0 if the packet was a data packet and was successfully passed on.
@@ -843,7 +835,6 @@ static int l2tp_udp_recv_core(struct l2tp_tunnel *tunnel, struct sk_buff *skb,
         u32 tunnel_id, session_id;
         u16 version;
         int length;
-        struct l2tp_stats *tstats;
 
         if (tunnel->sock && l2tp_verify_udp_checksum(tunnel->sock, skb))
                 goto discard_bad_csum;
@@ -932,10 +923,7 @@ static int l2tp_udp_recv_core(struct l2tp_tunnel *tunnel, struct sk_buff *skb,
 discard_bad_csum:
         LIMIT_NETDEBUG("%s: UDP: bad checksum\n", tunnel->name);
         UDP_INC_STATS_USER(tunnel->l2tp_net, UDP_MIB_INERRORS, 0);
-        tstats = &tunnel->stats;
-        u64_stats_update_begin(&tstats->syncp);
-        tstats->rx_errors++;
-        u64_stats_update_end(&tstats->syncp);
+        atomic_long_inc(&tunnel->stats.rx_errors);
         kfree_skb(skb);
 
         return 0;
@@ -1062,7 +1050,6 @@ static int l2tp_xmit_core(struct l2tp_session *session, struct sk_buff *skb,
         struct l2tp_tunnel *tunnel = session->tunnel;
         unsigned int len = skb->len;
         int error;
-        struct l2tp_stats *tstats, *sstats;
 
         /* Debug */
         if (session->send_seq)
@@ -1091,21 +1078,15 @@ static int l2tp_xmit_core(struct l2tp_session *session, struct sk_buff *skb,
                 error = ip_queue_xmit(skb, fl);
 
         /* Update stats */
-        tstats = &tunnel->stats;
-        u64_stats_update_begin(&tstats->syncp);
-        sstats = &session->stats;
-        u64_stats_update_begin(&sstats->syncp);
         if (error >= 0) {
-                tstats->tx_packets++;
-                tstats->tx_bytes += len;
-                sstats->tx_packets++;
-                sstats->tx_bytes += len;
+                atomic_long_inc(&tunnel->stats.tx_packets);
+                atomic_long_add(len, &tunnel->stats.tx_bytes);
+                atomic_long_inc(&session->stats.tx_packets);
+                atomic_long_add(len, &session->stats.tx_bytes);
         } else {
-                tstats->tx_errors++;
-                sstats->tx_errors++;
+                atomic_long_inc(&tunnel->stats.tx_errors);
+                atomic_long_inc(&session->stats.tx_errors);
         }
-        u64_stats_update_end(&tstats->syncp);
-        u64_stats_update_end(&sstats->syncp);
 
         return 0;
 }
@@ -1282,6 +1263,7 @@ static void l2tp_tunnel_destruct(struct sock *sk)
                 /* No longer an encapsulation socket. See net/ipv4/udp.c */
                 (udp_sk(sk))->encap_type = 0;
                 (udp_sk(sk))->encap_rcv = NULL;
+                (udp_sk(sk))->encap_destroy = NULL;
                 break;
         case L2TP_ENCAPTYPE_IP:
                 break;
@@ -1311,7 +1293,7 @@ end:
 
 /* When the tunnel is closed, all the attached sessions need to go too.
  */
-static void l2tp_tunnel_closeall(struct l2tp_tunnel *tunnel)
+void l2tp_tunnel_closeall(struct l2tp_tunnel *tunnel)
 {
         int hash;
         struct hlist_node *walk;
@@ -1334,25 +1316,13 @@ again:
 
                         hlist_del_init(&session->hlist);
 
-                        /* Since we should hold the sock lock while
-                         * doing any unbinding, we need to release the
-                         * lock we're holding before taking that lock.
-                         * Hold a reference to the sock so it doesn't
-                         * disappear as we're jumping between locks.
-                         */
                         if (session->ref != NULL)
                                 (*session->ref)(session);
 
                         write_unlock_bh(&tunnel->hlist_lock);
 
-                        if (tunnel->version != L2TP_HDR_VER_2) {
-                                struct l2tp_net *pn = l2tp_pernet(tunnel->l2tp_net);
-
-                                spin_lock_bh(&pn->l2tp_session_hlist_lock);
-                                hlist_del_init_rcu(&session->global_hlist);
-                                spin_unlock_bh(&pn->l2tp_session_hlist_lock);
-                                synchronize_rcu();
-                        }
+                        __l2tp_session_unhash(session);
+                        l2tp_session_queue_purge(session);
 
                         if (session->session_close != NULL)
                                 (*session->session_close)(session);
@@ -1360,6 +1330,8 @@ again:
                         if (session->deref != NULL)
                                 (*session->deref)(session);
 
+                        l2tp_session_dec_refcount(session);
+
                         write_lock_bh(&tunnel->hlist_lock);
 
                         /* Now restart from the beginning of this hash
@@ -1372,6 +1344,17 @@ again:
         }
         write_unlock_bh(&tunnel->hlist_lock);
 }
+EXPORT_SYMBOL_GPL(l2tp_tunnel_closeall);
+
+/* Tunnel socket destroy hook for UDP encapsulation */
+static void l2tp_udp_encap_destroy(struct sock *sk)
+{
+        struct l2tp_tunnel *tunnel = l2tp_sock_to_tunnel(sk);
+        if (tunnel) {
+                l2tp_tunnel_closeall(tunnel);
+                sock_put(sk);
+        }
+}
 
 /* Really kill the tunnel.
  * Come here only when all sessions have been cleared from the tunnel.
@@ -1397,19 +1380,21 @@ static void l2tp_tunnel_del_work(struct work_struct *work)
                 return;
 
         sock = sk->sk_socket;
-        BUG_ON(!sock);
 
-        /* If the tunnel socket was created directly by the kernel, use the
-         * sk_* API to release the socket now.  Otherwise go through the
-         * inet_* layer to shut the socket down, and let userspace close it.
+        /* If the tunnel socket was created by userspace, then go through the
+         * inet layer to shut the socket down, and let userspace close it.
+         * Otherwise, if we created the socket directly within the kernel, use
+         * the sk API to release it here.
          * In either case the tunnel resources are freed in the socket
          * destructor when the tunnel socket goes away.
          */
-        if (sock->file == NULL) {
-                kernel_sock_shutdown(sock, SHUT_RDWR);
-                sk_release_kernel(sk);
+        if (tunnel->fd >= 0) {
+                if (sock)
+                        inet_shutdown(sock, 2);
         } else {
-                inet_shutdown(sock, 2);
+                if (sock)
+                        kernel_sock_shutdown(sock, SHUT_RDWR);
+                sk_release_kernel(sk);
         }
 
         l2tp_tunnel_sock_put(sk);
@@ -1668,6 +1653,7 @@ int l2tp_tunnel_create(struct net *net, int fd, int version, u32 tunnel_id, u32
                 /* Mark socket as an encapsulation socket. See net/ipv4/udp.c */
                 udp_sk(sk)->encap_type = UDP_ENCAP_L2TPINUDP;
                 udp_sk(sk)->encap_rcv = l2tp_udp_encap_recv;
+                udp_sk(sk)->encap_destroy = l2tp_udp_encap_destroy;
 #if IS_ENABLED(CONFIG_IPV6)
                 if (sk->sk_family == PF_INET6)
                         udpv6_encap_enable();
@@ -1723,6 +1709,7 @@ EXPORT_SYMBOL_GPL(l2tp_tunnel_create);
  */
 int l2tp_tunnel_delete(struct l2tp_tunnel *tunnel)
 {
+        l2tp_tunnel_closeall(tunnel);
         return (false == queue_work(l2tp_wq, &tunnel->del_work));
 }
 EXPORT_SYMBOL_GPL(l2tp_tunnel_delete);
@@ -1731,62 +1718,71 @@ EXPORT_SYMBOL_GPL(l2tp_tunnel_delete);
  */
 void l2tp_session_free(struct l2tp_session *session)
 {
-        struct l2tp_tunnel *tunnel;
+        struct l2tp_tunnel *tunnel = session->tunnel;
 
         BUG_ON(atomic_read(&session->ref_count) != 0);
 
-        tunnel = session->tunnel;
-        if (tunnel != NULL) {
+        if (tunnel) {
                 BUG_ON(tunnel->magic != L2TP_TUNNEL_MAGIC);
+                if (session->session_id != 0)
+                        atomic_dec(&l2tp_session_count);
+                sock_put(tunnel->sock);
+                session->tunnel = NULL;
+                l2tp_tunnel_dec_refcount(tunnel);
+        }
+
+        kfree(session);
 
-                /* Delete the session from the hash */
+        return;
+}
+EXPORT_SYMBOL_GPL(l2tp_session_free);
+
+/* Remove an l2tp session from l2tp_core's hash lists.
+ * Provides a tidyup interface for pseudowire code which can't just route all
+ * shutdown via. l2tp_session_delete and a pseudowire-specific session_close
+ * callback.
+ */
+void __l2tp_session_unhash(struct l2tp_session *session)
+{
+        struct l2tp_tunnel *tunnel = session->tunnel;
+
+        /* Remove the session from core hashes */
+        if (tunnel) {
+                /* Remove from the per-tunnel hash */
                 write_lock_bh(&tunnel->hlist_lock);
                 hlist_del_init(&session->hlist);
                 write_unlock_bh(&tunnel->hlist_lock);
 
-                /* Unlink from the global hash if not L2TPv2 */
+                /* For L2TPv3 we have a per-net hash: remove from there, too */
                 if (tunnel->version != L2TP_HDR_VER_2) {
                         struct l2tp_net *pn = l2tp_pernet(tunnel->l2tp_net);
-
                         spin_lock_bh(&pn->l2tp_session_hlist_lock);
                         hlist_del_init_rcu(&session->global_hlist);
                         spin_unlock_bh(&pn->l2tp_session_hlist_lock);
                         synchronize_rcu();
                 }
-
-                if (session->session_id != 0)
-                        atomic_dec(&l2tp_session_count);
-
-                sock_put(tunnel->sock);
-
-                /* This will delete the tunnel context if this
-                 * is the last session on the tunnel.
-                 */
-                session->tunnel = NULL;
-                l2tp_tunnel_dec_refcount(tunnel);
         }
-
-        kfree(session);
-
-        return;
 }
-EXPORT_SYMBOL_GPL(l2tp_session_free);
+EXPORT_SYMBOL_GPL(__l2tp_session_unhash);
 
 /* This function is used by the netlink SESSION_DELETE command and by
    pseudowire modules.
  */
 int l2tp_session_delete(struct l2tp_session *session)
 {
+        if (session->ref)
+                (*session->ref)(session);
+        __l2tp_session_unhash(session);
+        l2tp_session_queue_purge(session);
         if (session->session_close != NULL)
                 (*session->session_close)(session);
-
+        if (session->deref)
+                (*session->ref)(session);
         l2tp_session_dec_refcount(session);
-
         return 0;
 }
 EXPORT_SYMBOL_GPL(l2tp_session_delete);
 
-
 /* We come here whenever a session's send_seq, cookie_len or
  * l2specific_len parameters are set.
  */
diff --git a/net/l2tp/l2tp_core.h b/net/l2tp/l2tp_core.h
index 8eb8f1d47f3a..485a490fd990 100644
--- a/net/l2tp/l2tp_core.h
+++ b/net/l2tp/l2tp_core.h
@@ -36,16 +36,15 @@ enum {
 struct sk_buff;
 
 struct l2tp_stats {
-        u64                     tx_packets;
-        u64                     tx_bytes;
-        u64                     tx_errors;
-        u64                     rx_packets;
-        u64                     rx_bytes;
-        u64                     rx_seq_discards;
-        u64                     rx_oos_packets;
-        u64                     rx_errors;
-        u64                     rx_cookie_discards;
-        struct u64_stats_sync   syncp;
+        atomic_long_t           tx_packets;
+        atomic_long_t           tx_bytes;
+        atomic_long_t           tx_errors;
+        atomic_long_t           rx_packets;
+        atomic_long_t           rx_bytes;
+        atomic_long_t           rx_seq_discards;
+        atomic_long_t           rx_oos_packets;
+        atomic_long_t           rx_errors;
+        atomic_long_t           rx_cookie_discards;
 };
 
 struct l2tp_tunnel;
@@ -240,11 +239,14 @@ extern struct l2tp_tunnel *l2tp_tunnel_find(struct net *net, u32 tunnel_id);
 extern struct l2tp_tunnel *l2tp_tunnel_find_nth(struct net *net, int nth);
 
 extern int l2tp_tunnel_create(struct net *net, int fd, int version, u32 tunnel_id, u32 peer_tunnel_id, struct l2tp_tunnel_cfg *cfg, struct l2tp_tunnel **tunnelp);
+extern void l2tp_tunnel_closeall(struct l2tp_tunnel *tunnel);
 extern int l2tp_tunnel_delete(struct l2tp_tunnel *tunnel);
 extern struct l2tp_session *l2tp_session_create(int priv_size, struct l2tp_tunnel *tunnel, u32 session_id, u32 peer_session_id, struct l2tp_session_cfg *cfg);
+extern void __l2tp_session_unhash(struct l2tp_session *session);
 extern int l2tp_session_delete(struct l2tp_session *session);
 extern void l2tp_session_free(struct l2tp_session *session);
 extern void l2tp_recv_common(struct l2tp_session *session, struct sk_buff *skb, unsigned char *ptr, unsigned char *optr, u16 hdrflags, int length, int (*payload_hook)(struct sk_buff *skb));
+extern int l2tp_session_queue_purge(struct l2tp_session *session);
 extern int l2tp_udp_encap_recv(struct sock *sk, struct sk_buff *skb);
 
 extern int l2tp_xmit_skb(struct l2tp_session *session, struct sk_buff *skb, int hdr_len);
diff --git a/net/l2tp/l2tp_debugfs.c b/net/l2tp/l2tp_debugfs.c
index c3813bc84552..072d7202e182 100644
--- a/net/l2tp/l2tp_debugfs.c
+++ b/net/l2tp/l2tp_debugfs.c
@@ -146,14 +146,14 @@ static void l2tp_dfs_seq_tunnel_show(struct seq_file *m, void *v)
                    tunnel->sock ? atomic_read(&tunnel->sock->sk_refcnt) : 0,
                    atomic_read(&tunnel->ref_count));
 
-        seq_printf(m, " %08x rx %llu/%llu/%llu rx %llu/%llu/%llu\n",
+        seq_printf(m, " %08x rx %ld/%ld/%ld rx %ld/%ld/%ld\n",
                    tunnel->debug,
-                   (unsigned long long)tunnel->stats.tx_packets,
-                   (unsigned long long)tunnel->stats.tx_bytes,
-                   (unsigned long long)tunnel->stats.tx_errors,
-                   (unsigned long long)tunnel->stats.rx_packets,
-                   (unsigned long long)tunnel->stats.rx_bytes,
-                   (unsigned long long)tunnel->stats.rx_errors);
+                   atomic_long_read(&tunnel->stats.tx_packets),
+                   atomic_long_read(&tunnel->stats.tx_bytes),
+                   atomic_long_read(&tunnel->stats.tx_errors),
+                   atomic_long_read(&tunnel->stats.rx_packets),
+                   atomic_long_read(&tunnel->stats.rx_bytes),
+                   atomic_long_read(&tunnel->stats.rx_errors));
 
         if (tunnel->show != NULL)
                 tunnel->show(m, tunnel);
@@ -203,14 +203,14 @@ static void l2tp_dfs_seq_session_show(struct seq_file *m, void *v)
                 seq_printf(m, "\n");
         }
 
-        seq_printf(m, "   %hu/%hu tx %llu/%llu/%llu rx %llu/%llu/%llu\n",
+        seq_printf(m, "   %hu/%hu tx %ld/%ld/%ld rx %ld/%ld/%ld\n",
                    session->nr, session->ns,
-                   (unsigned long long)session->stats.tx_packets,
-                   (unsigned long long)session->stats.tx_bytes,
-                   (unsigned long long)session->stats.tx_errors,
-                   (unsigned long long)session->stats.rx_packets,
-                   (unsigned long long)session->stats.rx_bytes,
-                   (unsigned long long)session->stats.rx_errors);
+                   atomic_long_read(&session->stats.tx_packets),
+                   atomic_long_read(&session->stats.tx_bytes),
+                   atomic_long_read(&session->stats.tx_errors),
+                   atomic_long_read(&session->stats.rx_packets),
+                   atomic_long_read(&session->stats.rx_bytes),
+                   atomic_long_read(&session->stats.rx_errors));
 
         if (session->show != NULL)
                 session->show(m, session);
diff --git a/net/l2tp/l2tp_ip.c b/net/l2tp/l2tp_ip.c
index 7f41b7051269..571db8dd2292 100644
--- a/net/l2tp/l2tp_ip.c
+++ b/net/l2tp/l2tp_ip.c
@@ -228,10 +228,16 @@ static void l2tp_ip_close(struct sock *sk, long timeout)
 static void l2tp_ip_destroy_sock(struct sock *sk)
 {
         struct sk_buff *skb;
+        struct l2tp_tunnel *tunnel = l2tp_sock_to_tunnel(sk);
 
         while ((skb = __skb_dequeue_tail(&sk->sk_write_queue)) != NULL)
                 kfree_skb(skb);
 
+        if (tunnel) {
+                l2tp_tunnel_closeall(tunnel);
+                sock_put(sk);
+        }
+
         sk_refcnt_debug_dec(sk);
 }
 
diff --git a/net/l2tp/l2tp_ip6.c b/net/l2tp/l2tp_ip6.c
index 41f2f8126ebc..c74f5a91ff6a 100644
--- a/net/l2tp/l2tp_ip6.c
+++ b/net/l2tp/l2tp_ip6.c
@@ -241,10 +241,17 @@ static void l2tp_ip6_close(struct sock *sk, long timeout)
 
 static void l2tp_ip6_destroy_sock(struct sock *sk)
 {
+        struct l2tp_tunnel *tunnel = l2tp_sock_to_tunnel(sk);
+
         lock_sock(sk);
         ip6_flush_pending_frames(sk);
         release_sock(sk);
 
+        if (tunnel) {
+                l2tp_tunnel_closeall(tunnel);
+                sock_put(sk);
+        }
+
         inet6_destroy_sock(sk);
 }
 
diff --git a/net/l2tp/l2tp_netlink.c b/net/l2tp/l2tp_netlink.c
index c1bab22db85e..0825ff26e113 100644
--- a/net/l2tp/l2tp_netlink.c
+++ b/net/l2tp/l2tp_netlink.c
@@ -246,8 +246,6 @@ static int l2tp_nl_tunnel_send(struct sk_buff *skb, u32 portid, u32 seq, int fla
 #if IS_ENABLED(CONFIG_IPV6)
         struct ipv6_pinfo *np = NULL;
 #endif
-        struct l2tp_stats stats;
-        unsigned int start;
 
         hdr = genlmsg_put(skb, portid, seq, &l2tp_nl_family, flags,
                           L2TP_CMD_TUNNEL_GET);
@@ -265,28 +263,22 @@ static int l2tp_nl_tunnel_send(struct sk_buff *skb, u32 portid, u32 seq, int fla
         if (nest == NULL)
                 goto nla_put_failure;
 
-        do {
-                start = u64_stats_fetch_begin(&tunnel->stats.syncp);
-                stats.tx_packets = tunnel->stats.tx_packets;
-                stats.tx_bytes = tunnel->stats.tx_bytes;
-                stats.tx_errors = tunnel->stats.tx_errors;
-                stats.rx_packets = tunnel->stats.rx_packets;
-                stats.rx_bytes = tunnel->stats.rx_bytes;
-                stats.rx_errors = tunnel->stats.rx_errors;
-                stats.rx_seq_discards = tunnel->stats.rx_seq_discards;
-                stats.rx_oos_packets = tunnel->stats.rx_oos_packets;
-        } while (u64_stats_fetch_retry(&tunnel->stats.syncp, start));
-
-        if (nla_put_u64(skb, L2TP_ATTR_TX_PACKETS, stats.tx_packets) ||
-            nla_put_u64(skb, L2TP_ATTR_TX_BYTES, stats.tx_bytes) ||
-            nla_put_u64(skb, L2TP_ATTR_TX_ERRORS, stats.tx_errors) ||
-            nla_put_u64(skb, L2TP_ATTR_RX_PACKETS, stats.rx_packets) ||
-            nla_put_u64(skb, L2TP_ATTR_RX_BYTES, stats.rx_bytes) ||
+        if (nla_put_u64(skb, L2TP_ATTR_TX_PACKETS,
+                    atomic_long_read(&tunnel->stats.tx_packets)) ||
+            nla_put_u64(skb, L2TP_ATTR_TX_BYTES,
+                    atomic_long_read(&tunnel->stats.tx_bytes)) ||
+            nla_put_u64(skb, L2TP_ATTR_TX_ERRORS,
+                    atomic_long_read(&tunnel->stats.tx_errors)) ||
+            nla_put_u64(skb, L2TP_ATTR_RX_PACKETS,
+                    atomic_long_read(&tunnel->stats.rx_packets)) ||
+            nla_put_u64(skb, L2TP_ATTR_RX_BYTES,
+                    atomic_long_read(&tunnel->stats.rx_bytes)) ||
             nla_put_u64(skb, L2TP_ATTR_RX_SEQ_DISCARDS,
-                        stats.rx_seq_discards) ||
+                    atomic_long_read(&tunnel->stats.rx_seq_discards)) ||
             nla_put_u64(skb, L2TP_ATTR_RX_OOS_PACKETS,
-                        stats.rx_oos_packets) ||
-            nla_put_u64(skb, L2TP_ATTR_RX_ERRORS, stats.rx_errors))
+                    atomic_long_read(&tunnel->stats.rx_oos_packets)) ||
+            nla_put_u64(skb, L2TP_ATTR_RX_ERRORS,
+                    atomic_long_read(&tunnel->stats.rx_errors)))
                 goto nla_put_failure;
         nla_nest_end(skb, nest);
 
@@ -612,8 +604,6 @@ static int l2tp_nl_session_send(struct sk_buff *skb, u32 portid, u32 seq, int fl
         struct nlattr *nest;
         struct l2tp_tunnel *tunnel = session->tunnel;
         struct sock *sk = NULL;
-        struct l2tp_stats stats;
-        unsigned int start;
 
         sk = tunnel->sock;
 
@@ -656,28 +646,22 @@ static int l2tp_nl_session_send(struct sk_buff *skb, u32 portid, u32 seq, int fl
         if (nest == NULL)
                 goto nla_put_failure;
 
-        do {
-                start = u64_stats_fetch_begin(&session->stats.syncp);
-                stats.tx_packets = session->stats.tx_packets;
-                stats.tx_bytes = session->stats.tx_bytes;
-                stats.tx_errors = session->stats.tx_errors;
-                stats.rx_packets = session->stats.rx_packets;
-                stats.rx_bytes = session->stats.rx_bytes;
-                stats.rx_errors = session->stats.rx_errors;
-                stats.rx_seq_discards = session->stats.rx_seq_discards;
-                stats.rx_oos_packets = session->stats.rx_oos_packets;
-        } while (u64_stats_fetch_retry(&session->stats.syncp, start));
-
-        if (nla_put_u64(skb, L2TP_ATTR_TX_PACKETS, stats.tx_packets) ||
-            nla_put_u64(skb, L2TP_ATTR_TX_BYTES, stats.tx_bytes) ||
-            nla_put_u64(skb, L2TP_ATTR_TX_ERRORS, stats.tx_errors) ||
-            nla_put_u64(skb, L2TP_ATTR_RX_PACKETS, stats.rx_packets) ||
-            nla_put_u64(skb, L2TP_ATTR_RX_BYTES, stats.rx_bytes) ||
+        if (nla_put_u64(skb, L2TP_ATTR_TX_PACKETS,
+                atomic_long_read(&session->stats.tx_packets)) ||
+            nla_put_u64(skb, L2TP_ATTR_TX_BYTES,
+                atomic_long_read(&session->stats.tx_bytes)) ||
+            nla_put_u64(skb, L2TP_ATTR_TX_ERRORS,
+                atomic_long_read(&session->stats.tx_errors)) ||
+            nla_put_u64(skb, L2TP_ATTR_RX_PACKETS,
+                atomic_long_read(&session->stats.rx_packets)) ||
+            nla_put_u64(skb, L2TP_ATTR_RX_BYTES,
+                atomic_long_read(&session->stats.rx_bytes)) ||
             nla_put_u64(skb, L2TP_ATTR_RX_SEQ_DISCARDS,
-                        stats.rx_seq_discards) ||
+                atomic_long_read(&session->stats.rx_seq_discards)) ||
             nla_put_u64(skb, L2TP_ATTR_RX_OOS_PACKETS,
-                        stats.rx_oos_packets) ||
-            nla_put_u64(skb, L2TP_ATTR_RX_ERRORS, stats.rx_errors))
+                atomic_long_read(&session->stats.rx_oos_packets)) ||
+            nla_put_u64(skb, L2TP_ATTR_RX_ERRORS,
+                atomic_long_read(&session->stats.rx_errors)))
                 goto nla_put_failure;
         nla_nest_end(skb, nest);
 
diff --git a/net/l2tp/l2tp_ppp.c b/net/l2tp/l2tp_ppp.c
index 6a53371dba1f..637a341c1e2d 100644
--- a/net/l2tp/l2tp_ppp.c
+++ b/net/l2tp/l2tp_ppp.c
@@ -97,6 +97,7 @@
 #include <net/ip.h>
 #include <net/udp.h>
 #include <net/xfrm.h>
+#include <net/inet_common.h>
 
 #include <asm/byteorder.h>
 #include <linux/atomic.h>
@@ -259,7 +260,7 @@ static void pppol2tp_recv(struct l2tp_session *session, struct sk_buff *skb, int
                           session->name);
 
                 /* Not bound. Nothing we can do, so discard. */
-                session->stats.rx_errors++;
+                atomic_long_inc(&session->stats.rx_errors);
                 kfree_skb(skb);
         }
 
@@ -447,34 +448,16 @@ static void pppol2tp_session_close(struct l2tp_session *session)
 {
         struct pppol2tp_session *ps = l2tp_session_priv(session);
         struct sock *sk = ps->sock;
-        struct sk_buff *skb;
+        struct socket *sock = sk->sk_socket;
 
         BUG_ON(session->magic != L2TP_SESSION_MAGIC);
 
-        if (session->session_id == 0)
-                goto out;
-
-        if (sk != NULL) {
-                lock_sock(sk);
-
-                if (sk->sk_state & (PPPOX_CONNECTED | PPPOX_BOUND)) {
-                        pppox_unbind_sock(sk);
-                        sk->sk_state = PPPOX_DEAD;
-                        sk->sk_state_change(sk);
-                }
-
-                /* Purge any queued data */
-                skb_queue_purge(&sk->sk_receive_queue);
-                skb_queue_purge(&sk->sk_write_queue);
-                while ((skb = skb_dequeue(&session->reorder_q))) {
-                        kfree_skb(skb);
-                        sock_put(sk);
-                }
 
-                release_sock(sk);
+        if (sock) {
+                inet_shutdown(sock, 2);
+                /* Don't let the session go away before our socket does */
+                l2tp_session_inc_refcount(session);
         }
-
-out:
         return;
 }
 
@@ -483,19 +466,12 @@ out:
  */
 static void pppol2tp_session_destruct(struct sock *sk)
 {
-        struct l2tp_session *session;
-
-        if (sk->sk_user_data != NULL) {
-                session = sk->sk_user_data;
-                if (session == NULL)
-                        goto out;
-
+        struct l2tp_session *session = sk->sk_user_data;
+        if (session) {
                 sk->sk_user_data = NULL;
                 BUG_ON(session->magic != L2TP_SESSION_MAGIC);
                 l2tp_session_dec_refcount(session);
         }
-
-out:
         return;
 }
 
@@ -525,16 +501,13 @@ static int pppol2tp_release(struct socket *sock)
         session = pppol2tp_sock_to_session(sk);
 
         /* Purge any queued data */
-        skb_queue_purge(&sk->sk_receive_queue);
-        skb_queue_purge(&sk->sk_write_queue);
         if (session != NULL) {
-                struct sk_buff *skb;
-                while ((skb = skb_dequeue(&session->reorder_q))) {
-                        kfree_skb(skb);
-                        sock_put(sk);
-                }
+                __l2tp_session_unhash(session);
+                l2tp_session_queue_purge(session);
                 sock_put(sk);
         }
+        skb_queue_purge(&sk->sk_receive_queue);
+        skb_queue_purge(&sk->sk_write_queue);
 
         release_sock(sk);
 
@@ -880,18 +853,6 @@ out:
         return error;
 }
 
-/* Called when deleting sessions via the netlink interface.
- */
-static int pppol2tp_session_delete(struct l2tp_session *session)
-{
-        struct pppol2tp_session *ps = l2tp_session_priv(session);
-
-        if (ps->sock == NULL)
-                l2tp_session_dec_refcount(session);
-
-        return 0;
-}
-
 #endif /* CONFIG_L2TP_V3 */
 
 /* getname() support.
@@ -1025,14 +986,14 @@ end:
 static void pppol2tp_copy_stats(struct pppol2tp_ioc_stats *dest,
                                 struct l2tp_stats *stats)
 {
-        dest->tx_packets = stats->tx_packets;
-        dest->tx_bytes = stats->tx_bytes;
-        dest->tx_errors = stats->tx_errors;
-        dest->rx_packets = stats->rx_packets;
-        dest->rx_bytes = stats->rx_bytes;
-        dest->rx_seq_discards = stats->rx_seq_discards;
-        dest->rx_oos_packets = stats->rx_oos_packets;
-        dest->rx_errors = stats->rx_errors;
+        dest->tx_packets = atomic_long_read(&stats->tx_packets);
+        dest->tx_bytes = atomic_long_read(&stats->tx_bytes);
+        dest->tx_errors = atomic_long_read(&stats->tx_errors);
+        dest->rx_packets = atomic_long_read(&stats->rx_packets);
+        dest->rx_bytes = atomic_long_read(&stats->rx_bytes);
+        dest->rx_seq_discards = atomic_long_read(&stats->rx_seq_discards);
+        dest->rx_oos_packets = atomic_long_read(&stats->rx_oos_packets);
+        dest->rx_errors = atomic_long_read(&stats->rx_errors);
 }
 
 /* Session ioctl helper.
@@ -1666,14 +1627,14 @@ static void pppol2tp_seq_tunnel_show(struct seq_file *m, void *v)
                    tunnel->name,
                    (tunnel == tunnel->sock->sk_user_data) ? 'Y' : 'N',
                    atomic_read(&tunnel->ref_count) - 1);
-        seq_printf(m, " %08x %llu/%llu/%llu %llu/%llu/%llu\n",
+        seq_printf(m, " %08x %ld/%ld/%ld %ld/%ld/%ld\n",
                    tunnel->debug,
-                   (unsigned long long)tunnel->stats.tx_packets,
-                   (unsigned long long)tunnel->stats.tx_bytes,
-                   (unsigned long long)tunnel->stats.tx_errors,
-                   (unsigned long long)tunnel->stats.rx_packets,
-                   (unsigned long long)tunnel->stats.rx_bytes,
-                   (unsigned long long)tunnel->stats.rx_errors);
+                   atomic_long_read(&tunnel->stats.tx_packets),
+                   atomic_long_read(&tunnel->stats.tx_bytes),
+                   atomic_long_read(&tunnel->stats.tx_errors),
+                   atomic_long_read(&tunnel->stats.rx_packets),
+                   atomic_long_read(&tunnel->stats.rx_bytes),
+                   atomic_long_read(&tunnel->stats.rx_errors));
 }
 
 static void pppol2tp_seq_session_show(struct seq_file *m, void *v)
@@ -1708,14 +1669,14 @@ static void pppol2tp_seq_session_show(struct seq_file *m, void *v)
                    session->lns_mode ? "LNS" : "LAC",
                    session->debug,
                    jiffies_to_msecs(session->reorder_timeout));
-        seq_printf(m, "   %hu/%hu %llu/%llu/%llu %llu/%llu/%llu\n",
+        seq_printf(m, "   %hu/%hu %ld/%ld/%ld %ld/%ld/%ld\n",
                    session->nr, session->ns,
-                   (unsigned long long)session->stats.tx_packets,
-                   (unsigned long long)session->stats.tx_bytes,
-                   (unsigned long long)session->stats.tx_errors,
-                   (unsigned long long)session->stats.rx_packets,
-                   (unsigned long long)session->stats.rx_bytes,
-                   (unsigned long long)session->stats.rx_errors);
+                   atomic_long_read(&session->stats.tx_packets),
+                   atomic_long_read(&session->stats.tx_bytes),
+                   atomic_long_read(&session->stats.tx_errors),
+                   atomic_long_read(&session->stats.rx_packets),
+                   atomic_long_read(&session->stats.rx_bytes),
+                   atomic_long_read(&session->stats.rx_errors));
 
         if (po)
                 seq_printf(m, "   interface %s\n", ppp_dev_name(&po->chan));
@@ -1839,7 +1800,7 @@ static const struct pppox_proto pppol2tp_proto = {
 
 static const struct l2tp_nl_cmd_ops pppol2tp_nl_cmd_ops = {
         .session_create = pppol2tp_session_create,
-        .session_delete = pppol2tp_session_delete,
+        .session_delete = l2tp_session_delete,
 };
 
 #endif /* CONFIG_L2TP_V3 */
diff --git a/net/netfilter/ipvs/ip_vs_core.c b/net/netfilter/ipvs/ip_vs_core.c
index 47edf5a40a59..61f49d241712 100644
--- a/net/netfilter/ipvs/ip_vs_core.c
+++ b/net/netfilter/ipvs/ip_vs_core.c
@@ -1394,10 +1394,8 @@ ip_vs_in_icmp(struct sk_buff *skb, int *related, unsigned int hooknum)
                         skb_reset_network_header(skb);
                         IP_VS_DBG(12, "ICMP for IPIP %pI4->%pI4: mtu=%u\n",
                                 &ip_hdr(skb)->saddr, &ip_hdr(skb)->daddr, mtu);
-                        rcu_read_lock();
                         ipv4_update_pmtu(skb, dev_net(skb->dev),
                                          mtu, 0, 0, 0, 0);
-                        rcu_read_unlock();
                         /* Client uses PMTUD? */
                         if (!(cih->frag_off & htons(IP_DF)))
                                 goto ignore_ipip;
@@ -1577,7 +1575,8 @@ ip_vs_in(unsigned int hooknum, struct sk_buff *skb, int af)
         }
         /* ipvs enabled in this netns ? */
         net = skb_net(skb);
-        if (!net_ipvs(net)->enable)
+        ipvs = net_ipvs(net);
+        if (unlikely(sysctl_backup_only(ipvs) || !ipvs->enable))
                 return NF_ACCEPT;
 
         ip_vs_fill_iph_skb(af, skb, &iph);
@@ -1654,7 +1653,6 @@ ip_vs_in(unsigned int hooknum, struct sk_buff *skb, int af)
         }
 
         IP_VS_DBG_PKT(11, af, pp, skb, 0, "Incoming packet");
-        ipvs = net_ipvs(net);
         /* Check the server status */
         if (cp->dest && !(cp->dest->flags & IP_VS_DEST_F_AVAILABLE)) {
                 /* the destination server is not available */
@@ -1815,13 +1813,15 @@ ip_vs_forward_icmp(unsigned int hooknum, struct sk_buff *skb,
 {
         int r;
         struct net *net;
+        struct netns_ipvs *ipvs;
 
         if (ip_hdr(skb)->protocol != IPPROTO_ICMP)
                 return NF_ACCEPT;
 
         /* ipvs enabled in this netns ? */
         net = skb_net(skb);
-        if (!net_ipvs(net)->enable)
+        ipvs = net_ipvs(net);
+        if (unlikely(sysctl_backup_only(ipvs) || !ipvs->enable))
                 return NF_ACCEPT;
 
         return ip_vs_in_icmp(skb, &r, hooknum);
@@ -1835,6 +1835,7 @@ ip_vs_forward_icmp_v6(unsigned int hooknum, struct sk_buff *skb,
 {
         int r;
         struct net *net;
+        struct netns_ipvs *ipvs;
         struct ip_vs_iphdr iphdr;
 
         ip_vs_fill_iph_skb(AF_INET6, skb, &iphdr);
@@ -1843,7 +1844,8 @@ ip_vs_forward_icmp_v6(unsigned int hooknum, struct sk_buff *skb,
 
         /* ipvs enabled in this netns ? */
         net = skb_net(skb);
-        if (!net_ipvs(net)->enable)
+        ipvs = net_ipvs(net);
+        if (unlikely(sysctl_backup_only(ipvs) || !ipvs->enable))
                 return NF_ACCEPT;
 
         return ip_vs_in_icmp_v6(skb, &r, hooknum, &iphdr);
diff --git a/net/netfilter/ipvs/ip_vs_ctl.c b/net/netfilter/ipvs/ip_vs_ctl.c
index c68198bf9128..9e2d1cccd1eb 100644
--- a/net/netfilter/ipvs/ip_vs_ctl.c
+++ b/net/netfilter/ipvs/ip_vs_ctl.c
@@ -1808,6 +1808,12 @@ static struct ctl_table vs_vars[] = {
                 .mode           = 0644,
                 .proc_handler   = proc_dointvec,
         },
+        {
+                .procname       = "backup_only",
+                .maxlen         = sizeof(int),
+                .mode           = 0644,
+                .proc_handler   = proc_dointvec,
+        },
 #ifdef CONFIG_IP_VS_DEBUG
         {
                 .procname       = "debug_level",
@@ -3741,6 +3747,7 @@ static int __net_init ip_vs_control_net_init_sysctl(struct net *net)
         tbl[idx++].data = &ipvs->sysctl_nat_icmp_send;
         ipvs->sysctl_pmtu_disc = 1;
         tbl[idx++].data = &ipvs->sysctl_pmtu_disc;
+        tbl[idx++].data = &ipvs->sysctl_backup_only;
 
 
         ipvs->sysctl_hdr = register_net_sysctl(net, "net/ipv4/vs", tbl);
diff --git a/net/netfilter/ipvs/ip_vs_proto_sctp.c b/net/netfilter/ipvs/ip_vs_proto_sctp.c
index ae8ec6f27688..cd1d7298f7ba 100644
--- a/net/netfilter/ipvs/ip_vs_proto_sctp.c
+++ b/net/netfilter/ipvs/ip_vs_proto_sctp.c
@@ -906,7 +906,7 @@ set_sctp_state(struct ip_vs_proto_data *pd, struct ip_vs_conn *cp,
         sctp_chunkhdr_t _sctpch, *sch;
         unsigned char chunk_type;
         int event, next_state;
-        int ihl;
+        int ihl, cofs;
 
 #ifdef CONFIG_IP_VS_IPV6
         ihl = cp->af == AF_INET ? ip_hdrlen(skb) : sizeof(struct ipv6hdr);
@@ -914,8 +914,8 @@ set_sctp_state(struct ip_vs_proto_data *pd, struct ip_vs_conn *cp,
         ihl = ip_hdrlen(skb);
 #endif
 
-        sch = skb_header_pointer(skb, ihl + sizeof(sctp_sctphdr_t),
-                                sizeof(_sctpch), &_sctpch);
+        cofs = ihl + sizeof(sctp_sctphdr_t);
+        sch = skb_header_pointer(skb, cofs, sizeof(_sctpch), &_sctpch);
         if (sch == NULL)
                 return;
 
@@ -933,10 +933,12 @@ set_sctp_state(struct ip_vs_proto_data *pd, struct ip_vs_conn *cp,
          */
         if ((sch->type == SCTP_CID_COOKIE_ECHO) ||
             (sch->type == SCTP_CID_COOKIE_ACK)) {
-                sch = skb_header_pointer(skb, (ihl + sizeof(sctp_sctphdr_t) +
-                                sch->length), sizeof(_sctpch), &_sctpch);
-                if (sch) {
-                        if (sch->type == SCTP_CID_ABORT)
+                int clen = ntohs(sch->length);
+
+                if (clen >= sizeof(sctp_chunkhdr_t)) {
+                        sch = skb_header_pointer(skb, cofs + ALIGN(clen, 4),
+                                                 sizeof(_sctpch), &_sctpch);
+                        if (sch && sch->type == SCTP_CID_ABORT)
                                 chunk_type = sch->type;
                 }
         }
diff --git a/net/netfilter/nf_conntrack_proto_dccp.c b/net/netfilter/nf_conntrack_proto_dccp.c
index 432f95780003..ba65b2041eb4 100644
--- a/net/netfilter/nf_conntrack_proto_dccp.c
+++ b/net/netfilter/nf_conntrack_proto_dccp.c
@@ -969,6 +969,10 @@ static int __init nf_conntrack_proto_dccp_init(void)
 {
         int ret;
 
+        ret = register_pernet_subsys(&dccp_net_ops);
+        if (ret < 0)
+                goto out_pernet;
+
         ret = nf_ct_l4proto_register(&dccp_proto4);
         if (ret < 0)
                 goto out_dccp4;
@@ -977,16 +981,12 @@ static int __init nf_conntrack_proto_dccp_init(void)
         if (ret < 0)
                 goto out_dccp6;
 
-        ret = register_pernet_subsys(&dccp_net_ops);
-        if (ret < 0)
-                goto out_pernet;
-
         return 0;
-out_pernet:
-        nf_ct_l4proto_unregister(&dccp_proto6);
 out_dccp6:
         nf_ct_l4proto_unregister(&dccp_proto4);
 out_dccp4:
+        unregister_pernet_subsys(&dccp_net_ops);
+out_pernet:
         return ret;
 }
 
diff --git a/net/netfilter/nf_conntrack_proto_gre.c b/net/netfilter/nf_conntrack_proto_gre.c
index bd7d01d9c7e7..155ce9f8a0db 100644
--- a/net/netfilter/nf_conntrack_proto_gre.c
+++ b/net/netfilter/nf_conntrack_proto_gre.c
@@ -420,18 +420,18 @@ static int __init nf_ct_proto_gre_init(void)
 {
         int ret;
 
-        ret = nf_ct_l4proto_register(&nf_conntrack_l4proto_gre4);
-        if (ret < 0)
-                goto out_gre4;
-
         ret = register_pernet_subsys(&proto_gre_net_ops);
         if (ret < 0)
                 goto out_pernet;
 
+        ret = nf_ct_l4proto_register(&nf_conntrack_l4proto_gre4);
+        if (ret < 0)
+                goto out_gre4;
+
         return 0;
-out_pernet:
-        nf_ct_l4proto_unregister(&nf_conntrack_l4proto_gre4);
 out_gre4:
+        unregister_pernet_subsys(&proto_gre_net_ops);
+out_pernet:
         return ret;
 }
 
diff --git a/net/netfilter/nf_conntrack_proto_sctp.c b/net/netfilter/nf_conntrack_proto_sctp.c
index 480f616d5936..ec83536def9a 100644
--- a/net/netfilter/nf_conntrack_proto_sctp.c
+++ b/net/netfilter/nf_conntrack_proto_sctp.c
@@ -888,6 +888,10 @@ static int __init nf_conntrack_proto_sctp_init(void)
 {
         int ret;
 
+        ret = register_pernet_subsys(&sctp_net_ops);
+        if (ret < 0)
+                goto out_pernet;
+
         ret = nf_ct_l4proto_register(&nf_conntrack_l4proto_sctp4);
         if (ret < 0)
                 goto out_sctp4;
@@ -896,16 +900,12 @@ static int __init nf_conntrack_proto_sctp_init(void)
         if (ret < 0)
                 goto out_sctp6;
 
-        ret = register_pernet_subsys(&sctp_net_ops);
-        if (ret < 0)
-                goto out_pernet;
-
         return 0;
-out_pernet:
-        nf_ct_l4proto_unregister(&nf_conntrack_l4proto_sctp6);
 out_sctp6:
         nf_ct_l4proto_unregister(&nf_conntrack_l4proto_sctp4);
 out_sctp4:
+        unregister_pernet_subsys(&sctp_net_ops);
+out_pernet:
         return ret;
 }
 
diff --git a/net/netfilter/nf_conntrack_proto_udplite.c b/net/netfilter/nf_conntrack_proto_udplite.c
index 157489581c31..ca969f6273f7 100644
--- a/net/netfilter/nf_conntrack_proto_udplite.c
+++ b/net/netfilter/nf_conntrack_proto_udplite.c
@@ -371,6 +371,10 @@ static int __init nf_conntrack_proto_udplite_init(void)
 {
         int ret;
 
+        ret = register_pernet_subsys(&udplite_net_ops);
+        if (ret < 0)
+                goto out_pernet;
+
         ret = nf_ct_l4proto_register(&nf_conntrack_l4proto_udplite4);
         if (ret < 0)
                 goto out_udplite4;
@@ -379,16 +383,12 @@ static int __init nf_conntrack_proto_udplite_init(void)
         if (ret < 0)
                 goto out_udplite6;
 
-        ret = register_pernet_subsys(&udplite_net_ops);
-        if (ret < 0)
-                goto out_pernet;
-
         return 0;
-out_pernet:
-        nf_ct_l4proto_unregister(&nf_conntrack_l4proto_udplite6);
 out_udplite6:
         nf_ct_l4proto_unregister(&nf_conntrack_l4proto_udplite4);
 out_udplite4:
+        unregister_pernet_subsys(&udplite_net_ops);
+out_pernet:
         return ret;
 }
 
diff --git a/net/netfilter/nfnetlink_queue_core.c b/net/netfilter/nfnetlink_queue_core.c
index 858fd52c1040..1cb48540f86a 100644
--- a/net/netfilter/nfnetlink_queue_core.c
+++ b/net/netfilter/nfnetlink_queue_core.c
@@ -112,7 +112,7 @@ instance_create(u_int16_t queue_num, int portid)
         inst->queue_num = queue_num;
         inst->peer_portid = portid;
         inst->queue_maxlen = NFQNL_QMAX_DEFAULT;
-        inst->copy_range = 0xfffff;
+        inst->copy_range = 0xffff;
         inst->copy_mode = NFQNL_COPY_NONE;
         spin_lock_init(&inst->lock);
         INIT_LIST_HEAD(&inst->queue_list);
diff --git a/net/netlink/genetlink.c b/net/netlink/genetlink.c
index f2aabb6f4105..5a55be3f17a5 100644
--- a/net/netlink/genetlink.c
+++ b/net/netlink/genetlink.c
@@ -142,6 +142,7 @@ int genl_register_mc_group(struct genl_family *family,
         int err = 0;
 
         BUG_ON(grp->name[0] == '\0');
+        BUG_ON(memchr(grp->name, '\0', GENL_NAMSIZ) == NULL);
 
         genl_lock();
 
diff --git a/net/sunrpc/sched.c b/net/sunrpc/sched.c
index fb20f25ddec9..f8529fc8e542 100644
--- a/net/sunrpc/sched.c
+++ b/net/sunrpc/sched.c
@@ -180,6 +180,8 @@ static void __rpc_add_wait_queue(struct rpc_wait_queue *queue,
                 list_add_tail(&task->u.tk_wait.list, &queue->tasks[0]);
         task->tk_waitqueue = queue;
         queue->qlen++;
+        /* barrier matches the read in rpc_wake_up_task_queue_locked() */
+        smp_wmb();
         rpc_set_queued(task);
 
         dprintk("RPC: %5u added to queue %p \"%s\"\n",
@@ -430,8 +432,11 @@ static void __rpc_do_wake_up_task(struct rpc_wait_queue *queue, struct rpc_task
  */
 static void rpc_wake_up_task_queue_locked(struct rpc_wait_queue *queue, struct rpc_task *task)
 {
-        if (RPC_IS_QUEUED(task) && task->tk_waitqueue == queue)
-                __rpc_do_wake_up_task(queue, task);
+        if (RPC_IS_QUEUED(task)) {
+                smp_rmb();
+                if (task->tk_waitqueue == queue)
+                        __rpc_do_wake_up_task(queue, task);
+        }
 }
 
 /*
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index 51be64f163ec..971282b6f6a3 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -382,7 +382,7 @@ static void unix_sock_destructor(struct sock *sk)
 #endif
 }
 
-static int unix_release_sock(struct sock *sk, int embrion)
+static void unix_release_sock(struct sock *sk, int embrion)
 {
         struct unix_sock *u = unix_sk(sk);
         struct path path;
@@ -451,8 +451,6 @@ static int unix_release_sock(struct sock *sk, int embrion)
 
         if (unix_tot_inflight)
                 unix_gc();              /* Garbage collect fds */
-
-        return 0;
 }
 
 static void init_peercred(struct sock *sk)
@@ -699,9 +697,10 @@ static int unix_release(struct socket *sock)
         if (!sk)
                 return 0;
 
+        unix_release_sock(sk, 0);
         sock->sk = NULL;
 
-        return unix_release_sock(sk, 0);
+        return 0;
 }
 
 static int unix_autobind(struct socket *sock)
@@ -1413,8 +1412,8 @@ static void maybe_add_creds(struct sk_buff *skb, const struct socket *sock,
         if (UNIXCB(skb).cred)
                 return;
         if (test_bit(SOCK_PASSCRED, &sock->flags) ||
-            !other->sk_socket ||
-            test_bit(SOCK_PASSCRED, &other->sk_socket->flags)) {
+            (other->sk_socket &&
+            test_bit(SOCK_PASSCRED, &other->sk_socket->flags))) {
                 UNIXCB(skb).pid  = get_pid(task_tgid(current));
                 UNIXCB(skb).cred = get_current_cred();
         }
diff --git a/security/yama/yama_lsm.c b/security/yama/yama_lsm.c
index 23414b93771f..13c88fbcf037 100644
--- a/security/yama/yama_lsm.c
+++ b/security/yama/yama_lsm.c
@@ -347,10 +347,8 @@ int yama_ptrace_traceme(struct task_struct *parent)
         /* Only disallow PTRACE_TRACEME on more aggressive settings. */
         switch (ptrace_scope) {
         case YAMA_SCOPE_CAPABILITY:
-                rcu_read_lock();
-                if (!ns_capable(__task_cred(parent)->user_ns, CAP_SYS_PTRACE))
+                if (!has_ns_capability(parent, current_user_ns(), CAP_SYS_PTRACE))
                         rc = -EPERM;
-                rcu_read_unlock();
                 break;
         case YAMA_SCOPE_NO_ATTACH:
                 rc = -EPERM;