384 files changed, 4467 insertions, 2347 deletions

diff --git a/Documentation/arm64/memory.txt b/Documentation/arm64/memory.txt
index dbbdcbba75a3..4110cca96bd6 100644
--- a/Documentation/arm64/memory.txt
+++ b/Documentation/arm64/memory.txt
@@ -27,17 +27,17 @@ Start			End			Size		Use
 -----------------------------------------------------------------------
 0000000000000000        0000007fffffffff         512GB          user
 
-ffffff8000000000        ffffffbbfffcffff        ~240GB          vmalloc
+ffffff8000000000        ffffffbbfffeffff        ~240GB          vmalloc
 
-ffffffbbfffd0000        ffffffbcfffdffff          64KB          [guard page]
+ffffffbbffff0000        ffffffbbffffffff          64KB          [guard page]
 
-ffffffbbfffe0000        ffffffbcfffeffff          64KB          PCI I/O space
+ffffffbc00000000        ffffffbdffffffff           8GB          vmemmap
 
-ffffffbbffff0000        ffffffbcffffffff          64KB          [guard page]
+ffffffbe00000000        ffffffbffbbfffff          ~8GB          [guard, future vmmemap]
 
-ffffffbc00000000        ffffffbdffffffff           8GB          vmemmap
+ffffffbffbe00000        ffffffbffbe0ffff          64KB          PCI I/O space
 
-ffffffbe00000000        ffffffbffbffffff          ~8GB          [guard, future vmmemap]
+ffffffbbffff0000        ffffffbcffffffff          ~2MB          [guard]
 
 ffffffbffc000000        ffffffbfffffffff          64MB          modules
 
diff --git a/Documentation/cgroups/memory.txt b/Documentation/cgroups/memory.txt
index c07f7b4fb88d..71c4da413444 100644
--- a/Documentation/cgroups/memory.txt
+++ b/Documentation/cgroups/memory.txt
@@ -466,6 +466,10 @@ Note:
 5.3 swappiness
 
 Similar to /proc/sys/vm/swappiness, but affecting a hierarchy of groups only.
+Please note that unlike the global swappiness, memcg knob set to 0
+really prevents from any swapping even if there is a swap storage
+available. This might lead to memcg OOM killer if there are no file
+pages to reclaim.
 
 Following cgroups' swappiness can't be changed.
 - root cgroup (uses /proc/sys/vm/swappiness).
diff --git a/Documentation/filesystems/proc.txt b/Documentation/filesystems/proc.txt
index a1793d670cd0..3844d21d6ca3 100644
--- a/Documentation/filesystems/proc.txt
+++ b/Documentation/filesystems/proc.txt
@@ -33,7 +33,7 @@ Table of Contents
   2     Modifying System Parameters
 
   3     Per-Process Parameters
-  3.1   /proc/<pid>/oom_score_adj - Adjust the oom-killer
+  3.1   /proc/<pid>/oom_adj & /proc/<pid>/oom_score_adj - Adjust the oom-killer
                                                                 score
   3.2   /proc/<pid>/oom_score - Display current oom-killer score
   3.3   /proc/<pid>/io - Display the IO accounting fields
@@ -1320,10 +1320,10 @@ of the kernel.
 CHAPTER 3: PER-PROCESS PARAMETERS
 ------------------------------------------------------------------------------
 
-3.1 /proc/<pid>/oom_score_adj- Adjust the oom-killer score
+3.1 /proc/<pid>/oom_adj & /proc/<pid>/oom_score_adj- Adjust the oom-killer score
 --------------------------------------------------------------------------------
 
-This file can be used to adjust the badness heuristic used to select which
+These file can be used to adjust the badness heuristic used to select which
 process gets killed in out of memory conditions.
 
 The badness heuristic assigns a value to each candidate task ranging from 0
@@ -1361,6 +1361,12 @@ same system, cpuset, mempolicy, or memory controller resources to use at least
 equivalent to discounting 50% of the task's allowed memory from being considered
 as scoring against the task.
 
+For backwards compatibility with previous kernels, /proc/<pid>/oom_adj may also
+be used to tune the badness score.  Its acceptable values range from -16
+(OOM_ADJUST_MIN) to +15 (OOM_ADJUST_MAX) and a special value of -17
+(OOM_DISABLE) to disable oom killing entirely for that task.  Its value is
+scaled linearly with /proc/<pid>/oom_score_adj.
+
 The value of /proc/<pid>/oom_score_adj may be reduced no lower than the last
 value set by a CAP_SYS_RESOURCE process. To reduce the value any lower
 requires CAP_SYS_RESOURCE.
@@ -1375,7 +1381,9 @@ minimal amount of work.
 -------------------------------------------------------------
 
 This file can be used to check the current score used by the oom-killer is for
-any given <pid>.
+any given <pid>. Use it together with /proc/<pid>/oom_score_adj to tune which
+process should be killed in an out-of-memory situation.
+
 
 3.3  /proc/<pid>/io - Display the IO accounting fields
 -------------------------------------------------------
diff --git a/Documentation/networking/netdev-features.txt b/Documentation/networking/netdev-features.txt
index 4164f5c02e4b..f310edec8a77 100644
--- a/Documentation/networking/netdev-features.txt
+++ b/Documentation/networking/netdev-features.txt
@@ -164,4 +164,4 @@ read the CRC recorded by the NIC on receipt of the packet.
 This requests that the NIC receive all possible frames, including errored
 frames (such as bad FCS, etc).  This can be helpful when sniffing a link with
 bad packets on it.  Some NICs may receive more packets if also put into normal
-PROMISC mdoe.
+PROMISC mode.
diff --git a/MAINTAINERS b/MAINTAINERS
index aedb604c83e7..a9c794cb671e 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2507,6 +2507,7 @@ M:	Joonyoung Shim <jy0922.shim@samsung.com>
 M:      Seung-Woo Kim <sw0312.kim@samsung.com>
 M:      Kyungmin Park <kyungmin.park@samsung.com>
 L:      dri-devel@lists.freedesktop.org
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos.git
 S:      Supported
 F:      drivers/gpu/drm/exynos
 F:      include/drm/exynos*
@@ -3597,6 +3598,49 @@ F:	drivers/hid/hid-hyperv.c
 F:      drivers/net/hyperv/
 F:      drivers/staging/hv/
 
+I2C OVER PARALLEL PORT
+M:      Jean Delvare <khali@linux-fr.org>
+L:      linux-i2c@vger.kernel.org
+S:      Maintained
+F:      Documentation/i2c/busses/i2c-parport
+F:      Documentation/i2c/busses/i2c-parport-light
+F:      drivers/i2c/busses/i2c-parport.c
+F:      drivers/i2c/busses/i2c-parport-light.c
+
+I2C/SMBUS CONTROLLER DRIVERS FOR PC
+M:      Jean Delvare <khali@linux-fr.org>
+L:      linux-i2c@vger.kernel.org
+S:      Maintained
+F:      Documentation/i2c/busses/i2c-ali1535
+F:      Documentation/i2c/busses/i2c-ali1563
+F:      Documentation/i2c/busses/i2c-ali15x3
+F:      Documentation/i2c/busses/i2c-amd756
+F:      Documentation/i2c/busses/i2c-amd8111
+F:      Documentation/i2c/busses/i2c-i801
+F:      Documentation/i2c/busses/i2c-nforce2
+F:      Documentation/i2c/busses/i2c-piix4
+F:      Documentation/i2c/busses/i2c-sis5595
+F:      Documentation/i2c/busses/i2c-sis630
+F:      Documentation/i2c/busses/i2c-sis96x
+F:      Documentation/i2c/busses/i2c-via
+F:      Documentation/i2c/busses/i2c-viapro
+F:      drivers/i2c/busses/i2c-ali1535.c
+F:      drivers/i2c/busses/i2c-ali1563.c
+F:      drivers/i2c/busses/i2c-ali15x3.c
+F:      drivers/i2c/busses/i2c-amd756.c
+F:      drivers/i2c/busses/i2c-amd756-s4882.c
+F:      drivers/i2c/busses/i2c-amd8111.c
+F:      drivers/i2c/busses/i2c-i801.c
+F:      drivers/i2c/busses/i2c-isch.c
+F:      drivers/i2c/busses/i2c-nforce2.c
+F:      drivers/i2c/busses/i2c-nforce2-s4985.c
+F:      drivers/i2c/busses/i2c-piix4.c
+F:      drivers/i2c/busses/i2c-sis5595.c
+F:      drivers/i2c/busses/i2c-sis630.c
+F:      drivers/i2c/busses/i2c-sis96x.c
+F:      drivers/i2c/busses/i2c-via.c
+F:      drivers/i2c/busses/i2c-viapro.c
+
 I2C/SMBUS STUB DRIVER
 M:      "Mark M. Hoffman" <mhoffman@lightlink.com>
 L:      linux-i2c@vger.kernel.org
@@ -3604,9 +3648,8 @@ S:	Maintained
 F:      drivers/i2c/busses/i2c-stub.c
 
 I2C SUBSYSTEM
-M:      "Jean Delvare (PC drivers, core)" <khali@linux-fr.org>
+M:      Wolfram Sang <w.sang@pengutronix.de>
 M:      "Ben Dooks (embedded platforms)" <ben-linux@fluff.org>
-M:      "Wolfram Sang (embedded platforms)" <w.sang@pengutronix.de>
 L:      linux-i2c@vger.kernel.org
 W:      http://i2c.wiki.kernel.org/
 T:      quilt kernel.org/pub/linux/kernel/people/jdelvare/linux-2.6/jdelvare-i2c/
@@ -3617,6 +3660,13 @@ F:	drivers/i2c/
 F:      include/linux/i2c.h
 F:      include/linux/i2c-*.h
 
+I2C-TAOS-EVM DRIVER
+M:      Jean Delvare <khali@linux-fr.org>
+L:      linux-i2c@vger.kernel.org
+S:      Maintained
+F:      Documentation/i2c/busses/i2c-taos-evm
+F:      drivers/i2c/busses/i2c-taos-evm.c
+
 I2C-TINY-USB DRIVER
 M:      Till Harbaum <till@harbaum.org>
 L:      linux-i2c@vger.kernel.org
@@ -7212,6 +7262,14 @@ L:	linux-xtensa@linux-xtensa.org
 S:      Maintained
 F:      arch/xtensa/
 
+THERMAL
+M:      Zhang Rui <rui.zhang@intel.com>
+L:      linux-pm@vger.kernel.org
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux.git
+S:      Supported
+F:      drivers/thermal/
+F:      include/linux/thermal.h
+
 THINKPAD ACPI EXTRAS DRIVER
 M:      Henrique de Moraes Holschuh <ibm-acpi@hmh.eng.br>
 L:      ibm-acpi-devel@lists.sourceforge.net
@@ -7895,13 +7953,6 @@ M:	Roger Luethi <rl@hellgate.ch>
 S:      Maintained
 F:      drivers/net/ethernet/via/via-rhine.c
 
-VIAPRO SMBUS DRIVER
-M:      Jean Delvare <khali@linux-fr.org>
-L:      linux-i2c@vger.kernel.org
-S:      Maintained
-F:      Documentation/i2c/busses/i2c-viapro
-F:      drivers/i2c/busses/i2c-viapro.c
-
 VIA SD/MMC CARD CONTROLLER DRIVER
 M:      Bruce Chang <brucechang@via.com.tw>
 M:      Harald Welte <HaraldWelte@viatech.com>
diff --git a/Makefile b/Makefile
index 42d0e56818ea..9f6ca124e890 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 VERSION = 3
 PATCHLEVEL = 7
 SUBLEVEL = 0
-EXTRAVERSION = -rc3
+EXTRAVERSION = -rc6
 NAME = Terrified Chipmunk
 
 # *DOCUMENTATION*
diff --git a/arch/arm/boot/Makefile b/arch/arm/boot/Makefile
index f2aa09eb658e..9137df539b61 100644
--- a/arch/arm/boot/Makefile
+++ b/arch/arm/boot/Makefile
@@ -33,7 +33,7 @@ ifeq ($(CONFIG_XIP_KERNEL),y)
 
 $(obj)/xipImage: vmlinux FORCE
         $(call if_changed,objcopy)
-        $(kecho) '  Kernel: $@ is ready (physical address: $(CONFIG_XIP_PHYS_ADDR))'
+        @$(kecho) '  Kernel: $@ is ready (physical address: $(CONFIG_XIP_PHYS_ADDR))'
 
 $(obj)/Image $(obj)/zImage: FORCE
         @echo 'Kernel configured for XIP (CONFIG_XIP_KERNEL=y)'
@@ -48,14 +48,14 @@ $(obj)/xipImage: FORCE
 
 $(obj)/Image: vmlinux FORCE
         $(call if_changed,objcopy)
-        $(kecho) '  Kernel: $@ is ready'
+        @$(kecho) '  Kernel: $@ is ready'
 
 $(obj)/compressed/vmlinux: $(obj)/Image FORCE
         $(Q)$(MAKE) $(build)=$(obj)/compressed $@
 
 $(obj)/zImage:  $(obj)/compressed/vmlinux FORCE
         $(call if_changed,objcopy)
-        $(kecho) '  Kernel: $@ is ready'
+        @$(kecho) '  Kernel: $@ is ready'
 
 endif
 
@@ -90,7 +90,7 @@ fi
 $(obj)/uImage:  $(obj)/zImage FORCE
         @$(check_for_multiple_loadaddr)
         $(call if_changed,uimage)
-        $(kecho) '  Image $@ is ready'
+        @$(kecho) '  Image $@ is ready'
 
 $(obj)/bootp/bootp: $(obj)/zImage initrd FORCE
         $(Q)$(MAKE) $(build)=$(obj)/bootp $@
@@ -98,7 +98,7 @@ $(obj)/bootp/bootp: $(obj)/zImage initrd FORCE
 
 $(obj)/bootpImage: $(obj)/bootp/bootp FORCE
         $(call if_changed,objcopy)
-        $(kecho) '  Kernel: $@ is ready'
+        @$(kecho) '  Kernel: $@ is ready'
 
 PHONY += initrd FORCE
 initrd:
diff --git a/arch/arm/boot/dts/tegra30.dtsi b/arch/arm/boot/dts/tegra30.dtsi
index b1497c7d7d68..df7f2270fc91 100644
--- a/arch/arm/boot/dts/tegra30.dtsi
+++ b/arch/arm/boot/dts/tegra30.dtsi
@@ -73,8 +73,8 @@
 
         pinmux: pinmux {
                 compatible = "nvidia,tegra30-pinmux";
-                reg = <0x70000868 0xd0    /* Pad control registers */
-                       0x70003000 0x3e0>; /* Mux registers */
+                reg = <0x70000868 0xd4    /* Pad control registers */
+                       0x70003000 0x3e4>; /* Mux registers */
         };
 
         serial@70006000 {
diff --git a/arch/arm/include/asm/io.h b/arch/arm/include/asm/io.h
index 35c1ed89b936..42f042ee4ada 100644
--- a/arch/arm/include/asm/io.h
+++ b/arch/arm/include/asm/io.h
@@ -64,7 +64,7 @@ extern void __raw_readsl(const void __iomem *addr, void *data, int longlen);
 static inline void __raw_writew(u16 val, volatile void __iomem *addr)
 {
         asm volatile("strh %1, %0"
-                     : "+Qo" (*(volatile u16 __force *)addr)
+                     : "+Q" (*(volatile u16 __force *)addr)
                      : "r" (val));
 }
 
@@ -72,7 +72,7 @@ static inline u16 __raw_readw(const volatile void __iomem *addr)
 {
         u16 val;
         asm volatile("ldrh %1, %0"
-                     : "+Qo" (*(volatile u16 __force *)addr),
+                     : "+Q" (*(volatile u16 __force *)addr),
                        "=r" (val));
         return val;
 }
diff --git a/arch/arm/include/asm/sched_clock.h b/arch/arm/include/asm/sched_clock.h
index 05b8e82ec9f5..e3f757263438 100644
--- a/arch/arm/include/asm/sched_clock.h
+++ b/arch/arm/include/asm/sched_clock.h
@@ -10,7 +10,5 @@
 
 extern void sched_clock_postinit(void);
 extern void setup_sched_clock(u32 (*read)(void), int bits, unsigned long rate);
-extern void setup_sched_clock_needs_suspend(u32 (*read)(void), int bits,
-                unsigned long rate);
 
 #endif
diff --git a/arch/arm/include/asm/vfpmacros.h b/arch/arm/include/asm/vfpmacros.h
index 6a6f1e485f41..301c1db3e99b 100644
--- a/arch/arm/include/asm/vfpmacros.h
+++ b/arch/arm/include/asm/vfpmacros.h
@@ -27,9 +27,9 @@
 #if __LINUX_ARM_ARCH__ <= 6
         ldr     \tmp, =elf_hwcap                    @ may not have MVFR regs
         ldr     \tmp, [\tmp, #0]
-        tst     \tmp, #HWCAP_VFPv3D16
-        ldceql  p11, cr0, [\base],#32*4             @ FLDMIAD \base!, {d16-d31}
-        addne   \base, \base, #32*4                 @ step over unused register space
+        tst     \tmp, #HWCAP_VFPD32
+        ldcnel  p11, cr0, [\base],#32*4             @ FLDMIAD \base!, {d16-d31}
+        addeq   \base, \base, #32*4                 @ step over unused register space
 #else
         VFPFMRX \tmp, MVFR0                         @ Media and VFP Feature Register 0
         and     \tmp, \tmp, #MVFR0_A_SIMD_MASK      @ A_SIMD field
@@ -51,9 +51,9 @@
 #if __LINUX_ARM_ARCH__ <= 6
         ldr     \tmp, =elf_hwcap                    @ may not have MVFR regs
         ldr     \tmp, [\tmp, #0]
-        tst     \tmp, #HWCAP_VFPv3D16
-        stceql  p11, cr0, [\base],#32*4             @ FSTMIAD \base!, {d16-d31}
-        addne   \base, \base, #32*4                 @ step over unused register space
+        tst     \tmp, #HWCAP_VFPD32
+        stcnel  p11, cr0, [\base],#32*4             @ FSTMIAD \base!, {d16-d31}
+        addeq   \base, \base, #32*4                 @ step over unused register space
 #else
         VFPFMRX \tmp, MVFR0                         @ Media and VFP Feature Register 0
         and     \tmp, \tmp, #MVFR0_A_SIMD_MASK      @ A_SIMD field
diff --git a/arch/arm/include/uapi/asm/hwcap.h b/arch/arm/include/uapi/asm/hwcap.h
index f254f6503cce..3688fd15a32d 100644
--- a/arch/arm/include/uapi/asm/hwcap.h
+++ b/arch/arm/include/uapi/asm/hwcap.h
@@ -18,11 +18,12 @@
 #define HWCAP_THUMBEE   (1 << 11)
 #define HWCAP_NEON      (1 << 12)
 #define HWCAP_VFPv3     (1 << 13)
-#define HWCAP_VFPv3D16  (1 << 14)
+#define HWCAP_VFPv3D16  (1 << 14)       /* also set for VFPv4-D16 */
 #define HWCAP_TLS       (1 << 15)
 #define HWCAP_VFPv4     (1 << 16)
 #define HWCAP_IDIVA     (1 << 17)
 #define HWCAP_IDIVT     (1 << 18)
+#define HWCAP_VFPD32    (1 << 19)       /* set if VFP has 32 regs (not 16) */
 #define HWCAP_IDIV      (HWCAP_IDIVA | HWCAP_IDIVT)
 
 
diff --git a/arch/arm/kernel/sched_clock.c b/arch/arm/kernel/sched_clock.c
index e21bac20d90d..fc6692e2b603 100644
--- a/arch/arm/kernel/sched_clock.c
+++ b/arch/arm/kernel/sched_clock.c
@@ -107,13 +107,6 @@ static void sched_clock_poll(unsigned long wrap_ticks)
         update_sched_clock();
 }
 
-void __init setup_sched_clock_needs_suspend(u32 (*read)(void), int bits,
-                unsigned long rate)
-{
-        setup_sched_clock(read, bits, rate);
-        cd.needs_suspend = true;
-}
-
 void __init setup_sched_clock(u32 (*read)(void), int bits, unsigned long rate)
 {
         unsigned long r, w;
@@ -189,18 +182,15 @@ void __init sched_clock_postinit(void)
 static int sched_clock_suspend(void)
 {
         sched_clock_poll(sched_clock_timer.data);
-        if (cd.needs_suspend)
-                cd.suspended = true;
+        cd.suspended = true;
         return 0;
 }
 
 static void sched_clock_resume(void)
 {
-        if (cd.needs_suspend) {
-                cd.epoch_cyc = read_sched_clock();
-                cd.epoch_cyc_copy = cd.epoch_cyc;
-                cd.suspended = false;
-        }
+        cd.epoch_cyc = read_sched_clock();
+        cd.epoch_cyc_copy = cd.epoch_cyc;
+        cd.suspended = false;
 }
 
 static struct syscore_ops sched_clock_ops = {
diff --git a/arch/arm/mach-at91/at91rm9200_devices.c b/arch/arm/mach-at91/at91rm9200_devices.c
index 1e122bcd7845..3cee0e6ea7c3 100644
--- a/arch/arm/mach-at91/at91rm9200_devices.c
+++ b/arch/arm/mach-at91/at91rm9200_devices.c
@@ -68,7 +68,7 @@ void __init at91_add_device_usbh(struct at91_usbh_data *data)
 
         /* Enable overcurrent notification */
         for (i = 0; i < data->ports; i++) {
-                if (data->overcurrent_pin[i])
+                if (gpio_is_valid(data->overcurrent_pin[i]))
                         at91_set_gpio_input(data->overcurrent_pin[i], 1);
         }
 
diff --git a/arch/arm/mach-at91/at91sam9260_devices.c b/arch/arm/mach-at91/at91sam9260_devices.c
index aa1e58729885..414bd855fb0c 100644
--- a/arch/arm/mach-at91/at91sam9260_devices.c
+++ b/arch/arm/mach-at91/at91sam9260_devices.c
@@ -72,7 +72,7 @@ void __init at91_add_device_usbh(struct at91_usbh_data *data)
 
         /* Enable overcurrent notification */
         for (i = 0; i < data->ports; i++) {
-                if (data->overcurrent_pin[i])
+                if (gpio_is_valid(data->overcurrent_pin[i]))
                         at91_set_gpio_input(data->overcurrent_pin[i], 1);
         }
 
diff --git a/arch/arm/mach-at91/at91sam9261_devices.c b/arch/arm/mach-at91/at91sam9261_devices.c
index b9487696b7be..cd604aad8e96 100644
--- a/arch/arm/mach-at91/at91sam9261_devices.c
+++ b/arch/arm/mach-at91/at91sam9261_devices.c
@@ -72,7 +72,7 @@ void __init at91_add_device_usbh(struct at91_usbh_data *data)
 
         /* Enable overcurrent notification */
         for (i = 0; i < data->ports; i++) {
-                if (data->overcurrent_pin[i])
+                if (gpio_is_valid(data->overcurrent_pin[i]))
                         at91_set_gpio_input(data->overcurrent_pin[i], 1);
         }
 
diff --git a/arch/arm/mach-at91/at91sam9263_devices.c b/arch/arm/mach-at91/at91sam9263_devices.c
index cb85da2eccea..9c61e59a2104 100644
--- a/arch/arm/mach-at91/at91sam9263_devices.c
+++ b/arch/arm/mach-at91/at91sam9263_devices.c
@@ -78,7 +78,7 @@ void __init at91_add_device_usbh(struct at91_usbh_data *data)
 
         /* Enable overcurrent notification */
         for (i = 0; i < data->ports; i++) {
-                if (data->overcurrent_pin[i])
+                if (gpio_is_valid(data->overcurrent_pin[i]))
                         at91_set_gpio_input(data->overcurrent_pin[i], 1);
         }
 
diff --git a/arch/arm/mach-at91/at91sam9g45_devices.c b/arch/arm/mach-at91/at91sam9g45_devices.c
index b1596072dcc2..fcd233cb33d2 100644
--- a/arch/arm/mach-at91/at91sam9g45_devices.c
+++ b/arch/arm/mach-at91/at91sam9g45_devices.c
@@ -1841,8 +1841,8 @@ static struct resource sha_resources[] = {
                 .flags  = IORESOURCE_MEM,
         },
         [1] = {
-                .start  = AT91SAM9G45_ID_AESTDESSHA,
-                .end    = AT91SAM9G45_ID_AESTDESSHA,
+                .start  = NR_IRQS_LEGACY + AT91SAM9G45_ID_AESTDESSHA,
+                .end    = NR_IRQS_LEGACY + AT91SAM9G45_ID_AESTDESSHA,
                 .flags  = IORESOURCE_IRQ,
         },
 };
@@ -1874,8 +1874,8 @@ static struct resource tdes_resources[] = {
                 .flags  = IORESOURCE_MEM,
         },
         [1] = {
-                .start  = AT91SAM9G45_ID_AESTDESSHA,
-                .end    = AT91SAM9G45_ID_AESTDESSHA,
+                .start  = NR_IRQS_LEGACY + AT91SAM9G45_ID_AESTDESSHA,
+                .end    = NR_IRQS_LEGACY + AT91SAM9G45_ID_AESTDESSHA,
                 .flags  = IORESOURCE_IRQ,
         },
 };
@@ -1910,8 +1910,8 @@ static struct resource aes_resources[] = {
                 .flags  = IORESOURCE_MEM,
         },
         [1] = {
-                .start  = AT91SAM9G45_ID_AESTDESSHA,
-                .end    = AT91SAM9G45_ID_AESTDESSHA,
+                .start  = NR_IRQS_LEGACY + AT91SAM9G45_ID_AESTDESSHA,
+                .end    = NR_IRQS_LEGACY + AT91SAM9G45_ID_AESTDESSHA,
                 .flags  = IORESOURCE_IRQ,
         },
 };
diff --git a/arch/arm/mach-highbank/system.c b/arch/arm/mach-highbank/system.c
index 82c27230d4a9..86e37cd9376c 100644
--- a/arch/arm/mach-highbank/system.c
+++ b/arch/arm/mach-highbank/system.c
@@ -28,6 +28,7 @@ void highbank_restart(char mode, const char *cmd)
                 hignbank_set_pwr_soft_reset();
 
         scu_power_mode(scu_base_addr, SCU_PM_POWEROFF);
-        cpu_do_idle();
+        while (1)
+                cpu_do_idle();
 }
 
diff --git a/arch/arm/mach-imx/clk-gate2.c b/arch/arm/mach-imx/clk-gate2.c
index 3c1b8ff9a0a6..cc49c7ae186e 100644
--- a/arch/arm/mach-imx/clk-gate2.c
+++ b/arch/arm/mach-imx/clk-gate2.c
@@ -112,7 +112,7 @@ struct clk *clk_register_gate2(struct device *dev, const char *name,
 
         clk = clk_register(dev, &gate->hw);
         if (IS_ERR(clk))
-                kfree(clk);
+                kfree(gate);
 
         return clk;
 }
diff --git a/arch/arm/mach-imx/ehci-imx25.c b/arch/arm/mach-imx/ehci-imx25.c
index 412c583a24b0..576af7446952 100644
--- a/arch/arm/mach-imx/ehci-imx25.c
+++ b/arch/arm/mach-imx/ehci-imx25.c
@@ -30,7 +30,7 @@
 #define MX25_H1_SIC_SHIFT       21
 #define MX25_H1_SIC_MASK        (0x3 << MX25_H1_SIC_SHIFT)
 #define MX25_H1_PP_BIT          (1 << 18)
-#define MX25_H1_PM_BIT          (1 << 8)
+#define MX25_H1_PM_BIT          (1 << 16)
 #define MX25_H1_IPPUE_UP_BIT    (1 << 7)
 #define MX25_H1_IPPUE_DOWN_BIT  (1 << 6)
 #define MX25_H1_TLL_BIT         (1 << 5)
diff --git a/arch/arm/mach-imx/ehci-imx35.c b/arch/arm/mach-imx/ehci-imx35.c
index 779e16eb65cb..293397852e4e 100644
--- a/arch/arm/mach-imx/ehci-imx35.c
+++ b/arch/arm/mach-imx/ehci-imx35.c
@@ -30,7 +30,7 @@
 #define MX35_H1_SIC_SHIFT       21
 #define MX35_H1_SIC_MASK        (0x3 << MX35_H1_SIC_SHIFT)
 #define MX35_H1_PP_BIT          (1 << 18)
-#define MX35_H1_PM_BIT          (1 << 8)
+#define MX35_H1_PM_BIT          (1 << 16)
 #define MX35_H1_IPPUE_UP_BIT    (1 << 7)
 #define MX35_H1_IPPUE_DOWN_BIT  (1 << 6)
 #define MX35_H1_TLL_BIT         (1 << 5)
diff --git a/arch/arm/mach-omap2/clockdomains44xx_data.c b/arch/arm/mach-omap2/clockdomains44xx_data.c
index b56d06b48782..95192a062d5d 100644
--- a/arch/arm/mach-omap2/clockdomains44xx_data.c
+++ b/arch/arm/mach-omap2/clockdomains44xx_data.c
@@ -359,7 +359,7 @@ static struct clockdomain iss_44xx_clkdm = {
         .clkdm_offs       = OMAP4430_CM2_CAM_CAM_CDOFFS,
         .wkdep_srcs       = iss_wkup_sleep_deps,
         .sleepdep_srcs    = iss_wkup_sleep_deps,
-        .flags            = CLKDM_CAN_HWSUP_SWSUP,
+        .flags            = CLKDM_CAN_SWSUP,
 };
 
 static struct clockdomain l3_dss_44xx_clkdm = {
diff --git a/arch/arm/mach-omap2/devices.c b/arch/arm/mach-omap2/devices.c
index cba60e05e32e..c72b5a727720 100644
--- a/arch/arm/mach-omap2/devices.c
+++ b/arch/arm/mach-omap2/devices.c
@@ -19,6 +19,7 @@
 #include <linux/of.h>
 #include <linux/pinctrl/machine.h>
 #include <linux/platform_data/omap4-keypad.h>
+#include <linux/platform_data/omap_ocp2scp.h>
 
 #include <asm/mach-types.h>
 #include <asm/mach/map.h>
@@ -613,6 +614,83 @@ static void omap_init_vout(void)
 static inline void omap_init_vout(void) {}
 #endif
 
+#if defined(CONFIG_OMAP_OCP2SCP) || defined(CONFIG_OMAP_OCP2SCP_MODULE)
+static int count_ocp2scp_devices(struct omap_ocp2scp_dev *ocp2scp_dev)
+{
+        int cnt = 0;
+
+        while (ocp2scp_dev->drv_name != NULL) {
+                cnt++;
+                ocp2scp_dev++;
+        }
+
+        return cnt;
+}
+
+static void omap_init_ocp2scp(void)
+{
+        struct omap_hwmod       *oh;
+        struct platform_device  *pdev;
+        int                     bus_id = -1, dev_cnt = 0, i;
+        struct omap_ocp2scp_dev *ocp2scp_dev;
+        const char              *oh_name, *name;
+        struct omap_ocp2scp_platform_data *pdata;
+
+        if (!cpu_is_omap44xx())
+                return;
+
+        oh_name = "ocp2scp_usb_phy";
+        name    = "omap-ocp2scp";
+
+        oh = omap_hwmod_lookup(oh_name);
+        if (!oh) {
+                pr_err("%s: could not find omap_hwmod for %s\n", __func__,
+                                                                oh_name);
+                return;
+        }
+
+        pdata = kzalloc(sizeof(*pdata), GFP_KERNEL);
+        if (!pdata) {
+                pr_err("%s: No memory for ocp2scp pdata\n", __func__);
+                return;
+        }
+
+        ocp2scp_dev = oh->dev_attr;
+        dev_cnt = count_ocp2scp_devices(ocp2scp_dev);
+
+        if (!dev_cnt) {
+                pr_err("%s: No devices connected to ocp2scp\n", __func__);
+                kfree(pdata);
+                return;
+        }
+
+        pdata->devices = kzalloc(sizeof(struct omap_ocp2scp_dev *)
+                                        * dev_cnt, GFP_KERNEL);
+        if (!pdata->devices) {
+                pr_err("%s: No memory for ocp2scp pdata devices\n", __func__);
+                kfree(pdata);
+                return;
+        }
+
+        for (i = 0; i < dev_cnt; i++, ocp2scp_dev++)
+                pdata->devices[i] = ocp2scp_dev;
+
+        pdata->dev_cnt  = dev_cnt;
+
+        pdev = omap_device_build(name, bus_id, oh, pdata, sizeof(*pdata), NULL,
+                                                                0, false);
+        if (IS_ERR(pdev)) {
+                pr_err("Could not build omap_device for %s %s\n",
+                                                name, oh_name);
+                kfree(pdata->devices);
+                kfree(pdata);
+                return;
+        }
+}
+#else
+static inline void omap_init_ocp2scp(void) { }
+#endif
+
 /*-------------------------------------------------------------------------*/
 
 static int __init omap2_init_devices(void)
@@ -640,6 +718,7 @@ static int __init omap2_init_devices(void)
         omap_init_sham();
         omap_init_aes();
         omap_init_vout();
+        omap_init_ocp2scp();
 
         return 0;
 }
diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c
index b969ab1d258b..87cc6d058de2 100644
--- a/arch/arm/mach-omap2/omap_hwmod.c
+++ b/arch/arm/mach-omap2/omap_hwmod.c
@@ -422,6 +422,38 @@ static int _set_softreset(struct omap_hwmod *oh, u32 *v)
 }
 
 /**
+ * _wait_softreset_complete - wait for an OCP softreset to complete
+ * @oh: struct omap_hwmod * to wait on
+ *
+ * Wait until the IP block represented by @oh reports that its OCP
+ * softreset is complete.  This can be triggered by software (see
+ * _ocp_softreset()) or by hardware upon returning from off-mode (one
+ * example is HSMMC).  Waits for up to MAX_MODULE_SOFTRESET_WAIT
+ * microseconds.  Returns the number of microseconds waited.
+ */
+static int _wait_softreset_complete(struct omap_hwmod *oh)
+{
+        struct omap_hwmod_class_sysconfig *sysc;
+        u32 softrst_mask;
+        int c = 0;
+
+        sysc = oh->class->sysc;
+
+        if (sysc->sysc_flags & SYSS_HAS_RESET_STATUS)
+                omap_test_timeout((omap_hwmod_read(oh, sysc->syss_offs)
+                                   & SYSS_RESETDONE_MASK),
+                                  MAX_MODULE_SOFTRESET_WAIT, c);
+        else if (sysc->sysc_flags & SYSC_HAS_RESET_STATUS) {
+                softrst_mask = (0x1 << sysc->sysc_fields->srst_shift);
+                omap_test_timeout(!(omap_hwmod_read(oh, sysc->sysc_offs)
+                                    & softrst_mask),
+                                  MAX_MODULE_SOFTRESET_WAIT, c);
+        }
+
+        return c;
+}
+
+/**
  * _set_dmadisable: set OCP_SYSCONFIG.DMADISABLE bit in @v
  * @oh: struct omap_hwmod *
  *
@@ -1282,6 +1314,18 @@ static void _enable_sysc(struct omap_hwmod *oh)
         if (!oh->class->sysc)
                 return;
 
+        /*
+         * Wait until reset has completed, this is needed as the IP
+         * block is reset automatically by hardware in some cases
+         * (off-mode for example), and the drivers require the
+         * IP to be ready when they access it
+         */
+        if (oh->flags & HWMOD_CONTROL_OPT_CLKS_IN_RESET)
+                _enable_optional_clocks(oh);
+        _wait_softreset_complete(oh);
+        if (oh->flags & HWMOD_CONTROL_OPT_CLKS_IN_RESET)
+                _disable_optional_clocks(oh);
+
         v = oh->_sysc_cache;
         sf = oh->class->sysc->sysc_flags;
 
@@ -1804,7 +1848,7 @@ static int _am33xx_disable_module(struct omap_hwmod *oh)
  */
 static int _ocp_softreset(struct omap_hwmod *oh)
 {
-        u32 v, softrst_mask;
+        u32 v;
         int c = 0;
         int ret = 0;
 
@@ -1834,19 +1878,7 @@ static int _ocp_softreset(struct omap_hwmod *oh)
         if (oh->class->sysc->srst_udelay)
                 udelay(oh->class->sysc->srst_udelay);
 
-        if (oh->class->sysc->sysc_flags & SYSS_HAS_RESET_STATUS)
-                omap_test_timeout((omap_hwmod_read(oh,
-                                                    oh->class->sysc->syss_offs)
-                                   & SYSS_RESETDONE_MASK),
-                                  MAX_MODULE_SOFTRESET_WAIT, c);
-        else if (oh->class->sysc->sysc_flags & SYSC_HAS_RESET_STATUS) {
-                softrst_mask = (0x1 << oh->class->sysc->sysc_fields->srst_shift);
-                omap_test_timeout(!(omap_hwmod_read(oh,
-                                                     oh->class->sysc->sysc_offs)
-                                   & softrst_mask),
-                                  MAX_MODULE_SOFTRESET_WAIT, c);
-        }
-
+        c = _wait_softreset_complete(oh);
         if (c == MAX_MODULE_SOFTRESET_WAIT)
                 pr_warning("omap_hwmod: %s: softreset failed (waited %d usec)\n",
                            oh->name, MAX_MODULE_SOFTRESET_WAIT);
@@ -2352,6 +2384,9 @@ static int __init _setup_reset(struct omap_hwmod *oh)
         if (oh->_state != _HWMOD_STATE_INITIALIZED)
                 return -EINVAL;
 
+        if (oh->flags & HWMOD_EXT_OPT_MAIN_CLK)
+                return -EPERM;
+
         if (oh->rst_lines_cnt == 0) {
                 r = _enable(oh);
                 if (r) {
diff --git a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
index 652d0285bd6d..0b1249e00398 100644
--- a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
@@ -21,6 +21,7 @@
 #include <linux/io.h>
 #include <linux/platform_data/gpio-omap.h>
 #include <linux/power/smartreflex.h>
+#include <linux/platform_data/omap_ocp2scp.h>
 
 #include <plat/omap_hwmod.h>
 #include <plat/i2c.h>
@@ -2125,6 +2126,14 @@ static struct omap_hwmod omap44xx_mcpdm_hwmod = {
         .name           = "mcpdm",
         .class          = &omap44xx_mcpdm_hwmod_class,
         .clkdm_name     = "abe_clkdm",
+        /*
+         * It's suspected that the McPDM requires an off-chip main
+         * functional clock, controlled via I2C.  This IP block is
+         * currently reset very early during boot, before I2C is
+         * available, so it doesn't seem that we have any choice in
+         * the kernel other than to avoid resetting it.
+         */
+        .flags          = HWMOD_EXT_OPT_MAIN_CLK,
         .mpu_irqs       = omap44xx_mcpdm_irqs,
         .sdma_reqs      = omap44xx_mcpdm_sdma_reqs,
         .main_clk       = "mcpdm_fck",
@@ -2681,6 +2690,32 @@ static struct omap_hwmod_class omap44xx_ocp2scp_hwmod_class = {
         .sysc   = &omap44xx_ocp2scp_sysc,
 };
 
+/* ocp2scp dev_attr */
+static struct resource omap44xx_usb_phy_and_pll_addrs[] = {
+        {
+                .name           = "usb_phy",
+                .start          = 0x4a0ad080,
+                .end            = 0x4a0ae000,
+                .flags          = IORESOURCE_MEM,
+        },
+        {
+                /* XXX: Remove this once control module driver is in place */
+                .name           = "ctrl_dev",
+                .start          = 0x4a002300,
+                .end            = 0x4a002303,
+                .flags          = IORESOURCE_MEM,
+        },
+        { }
+};
+
+static struct omap_ocp2scp_dev ocp2scp_dev_attr[] = {
+        {
+                .drv_name       = "omap-usb2",
+                .res            = omap44xx_usb_phy_and_pll_addrs,
+        },
+        { }
+};
+
 /* ocp2scp_usb_phy */
 static struct omap_hwmod omap44xx_ocp2scp_usb_phy_hwmod = {
         .name           = "ocp2scp_usb_phy",
@@ -2694,6 +2729,7 @@ static struct omap_hwmod omap44xx_ocp2scp_usb_phy_hwmod = {
                         .modulemode   = MODULEMODE_HWCTRL,
                 },
         },
+        .dev_attr       = ocp2scp_dev_attr,
 };
 
 /*
diff --git a/arch/arm/mach-omap2/twl-common.c b/arch/arm/mach-omap2/twl-common.c
index 635e109f5ad3..44c42057b61c 100644
--- a/arch/arm/mach-omap2/twl-common.c
+++ b/arch/arm/mach-omap2/twl-common.c
@@ -366,7 +366,7 @@ static struct regulator_init_data omap4_clk32kg_idata = {
 };
 
 static struct regulator_consumer_supply omap4_vdd1_supply[] = {
-        REGULATOR_SUPPLY("vcc", "mpu.0"),
+        REGULATOR_SUPPLY("vcc", "cpu0"),
 };
 
 static struct regulator_consumer_supply omap4_vdd2_supply[] = {
diff --git a/arch/arm/mach-omap2/vc.c b/arch/arm/mach-omap2/vc.c
index 880249b17012..75878c37959b 100644
--- a/arch/arm/mach-omap2/vc.c
+++ b/arch/arm/mach-omap2/vc.c
@@ -264,7 +264,7 @@ static void __init omap_vc_i2c_init(struct voltagedomain *voltdm)
 
         if (initialized) {
                 if (voltdm->pmic->i2c_high_speed != i2c_high_speed)
-                        pr_warn("%s: I2C config for vdd_%s does not match other channels (%u).",
+                        pr_warn("%s: I2C config for vdd_%s does not match other channels (%u).\n",
                                 __func__, voltdm->name, i2c_high_speed);
                 return;
         }
diff --git a/arch/arm/mach-pxa/hx4700.c b/arch/arm/mach-pxa/hx4700.c
index 5ecbd17b5641..e2c6391863fe 100644
--- a/arch/arm/mach-pxa/hx4700.c
+++ b/arch/arm/mach-pxa/hx4700.c
@@ -28,6 +28,7 @@
 #include <linux/mfd/asic3.h>
 #include <linux/mtd/physmap.h>
 #include <linux/pda_power.h>
+#include <linux/pwm.h>
 #include <linux/pwm_backlight.h>
 #include <linux/regulator/driver.h>
 #include <linux/regulator/gpio-regulator.h>
@@ -556,7 +557,7 @@ static struct platform_device hx4700_lcd = {
  */
 
 static struct platform_pwm_backlight_data backlight_data = {
-        .pwm_id         = 1,
+        .pwm_id         = -1,   /* Superseded by pwm_lookup */
         .max_brightness = 200,
         .dft_brightness = 100,
         .pwm_period_ns  = 30923,
@@ -571,6 +572,10 @@ static struct platform_device backlight = {
         },
 };
 
+static struct pwm_lookup hx4700_pwm_lookup[] = {
+        PWM_LOOKUP("pxa27x-pwm.1", 0, "pwm-backlight", NULL),
+};
+
 /*
  * USB "Transceiver"
  */
@@ -872,6 +877,7 @@ static void __init hx4700_init(void)
         pxa_set_stuart_info(NULL);
 
         platform_add_devices(devices, ARRAY_SIZE(devices));
+        pwm_add_table(hx4700_pwm_lookup, ARRAY_SIZE(hx4700_pwm_lookup));
 
         pxa_set_ficp_info(&ficp_info);
         pxa27x_set_i2c_power_info(NULL);
diff --git a/arch/arm/mach-pxa/spitz_pm.c b/arch/arm/mach-pxa/spitz_pm.c
index 438f02fe122a..842596d4d31e 100644
--- a/arch/arm/mach-pxa/spitz_pm.c
+++ b/arch/arm/mach-pxa/spitz_pm.c
@@ -86,10 +86,7 @@ static void spitz_discharge1(int on)
         gpio_set_value(SPITZ_GPIO_LED_GREEN, on);
 }
 
-static unsigned long gpio18_config[] = {
-        GPIO18_RDY,
-        GPIO18_GPIO,
-};
+static unsigned long gpio18_config = GPIO18_GPIO;
 
 static void spitz_presuspend(void)
 {
@@ -112,7 +109,7 @@ static void spitz_presuspend(void)
         PGSR3 &= ~SPITZ_GPIO_G3_STROBE_BIT;
         PGSR2 |= GPIO_bit(SPITZ_GPIO_KEY_STROBE0);
 
-        pxa2xx_mfp_config(&gpio18_config[0], 1);
+        pxa2xx_mfp_config(&gpio18_config, 1);
         gpio_request_one(18, GPIOF_OUT_INIT_HIGH, "Unknown");
         gpio_free(18);
 
@@ -131,7 +128,6 @@ static void spitz_presuspend(void)
 
 static void spitz_postsuspend(void)
 {
-        pxa2xx_mfp_config(&gpio18_config[1], 1);
 }
 
 static int spitz_should_wakeup(unsigned int resume_on_alarm)
diff --git a/arch/arm/mm/alignment.c b/arch/arm/mm/alignment.c
index 023f443784ec..b820edaf3184 100644
--- a/arch/arm/mm/alignment.c
+++ b/arch/arm/mm/alignment.c
@@ -745,7 +745,7 @@ do_alignment_t32_to_handler(unsigned long *pinstr, struct pt_regs *regs,
 static int
 do_alignment(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
 {
-        union offset_union offset;
+        union offset_union uninitialized_var(offset);
         unsigned long instr = 0, instrptr;
         int (*handler)(unsigned long addr, unsigned long instr, struct pt_regs *regs);
         unsigned int type;
diff --git a/arch/arm/plat-omap/include/plat/omap_hwmod.h b/arch/arm/plat-omap/include/plat/omap_hwmod.h
index b3349f7b1a2c..1db029438022 100644
--- a/arch/arm/plat-omap/include/plat/omap_hwmod.h
+++ b/arch/arm/plat-omap/include/plat/omap_hwmod.h
@@ -443,6 +443,11 @@ struct omap_hwmod_omap4_prcm {
  *     in order to complete the reset. Optional clocks will be disabled
  *     again after the reset.
  * HWMOD_16BIT_REG: Module has 16bit registers
+ * HWMOD_EXT_OPT_MAIN_CLK: The only main functional clock source for
+ *     this IP block comes from an off-chip source and is not always
+ *     enabled.  This prevents the hwmod code from being able to
+ *     enable and reset the IP block early.  XXX Eventually it should
+ *     be possible to query the clock framework for this information.
  */
 #define HWMOD_SWSUP_SIDLE                       (1 << 0)
 #define HWMOD_SWSUP_MSTANDBY                    (1 << 1)
@@ -453,6 +458,7 @@ struct omap_hwmod_omap4_prcm {
 #define HWMOD_NO_IDLEST                         (1 << 6)
 #define HWMOD_CONTROL_OPT_CLKS_IN_RESET         (1 << 7)
 #define HWMOD_16BIT_REG                         (1 << 8)
+#define HWMOD_EXT_OPT_MAIN_CLK                  (1 << 9)
 
 /*
  * omap_hwmod._int_flags definitions
diff --git a/arch/arm/tools/Makefile b/arch/arm/tools/Makefile
index cd60a81163e9..32d05c8219dc 100644
--- a/arch/arm/tools/Makefile
+++ b/arch/arm/tools/Makefile
@@ -5,6 +5,6 @@
 #
 
 include/generated/mach-types.h: $(src)/gen-mach-types $(src)/mach-types
-        $(kecho) '  Generating $@'
+        @$(kecho) '  Generating $@'
         @mkdir -p $(dir $@)
         $(Q)$(AWK) -f $^ > $@ || { rm -f $@; /bin/false; }
diff --git a/arch/arm/vfp/vfpmodule.c b/arch/arm/vfp/vfpmodule.c
index c834b32af275..3b44e0dd0a93 100644
--- a/arch/arm/vfp/vfpmodule.c
+++ b/arch/arm/vfp/vfpmodule.c
@@ -701,11 +701,14 @@ static int __init vfp_init(void)
                         elf_hwcap |= HWCAP_VFPv3;
 
                         /*
-                         * Check for VFPv3 D16. CPUs in this configuration
-                         * only have 16 x 64bit registers.
+                         * Check for VFPv3 D16 and VFPv4 D16.  CPUs in
+                         * this configuration only have 16 x 64bit
+                         * registers.
                          */
                         if (((fmrx(MVFR0) & MVFR0_A_SIMD_MASK)) == 1)
-                                elf_hwcap |= HWCAP_VFPv3D16;
+                                elf_hwcap |= HWCAP_VFPv3D16; /* also v4-D16 */
+                        else
+                                elf_hwcap |= HWCAP_VFPD32;
                 }
 #endif
                 /*
diff --git a/arch/arm/xen/enlighten.c b/arch/arm/xen/enlighten.c
index 59bcb96ac369..f57609275449 100644
--- a/arch/arm/xen/enlighten.c
+++ b/arch/arm/xen/enlighten.c
@@ -166,3 +166,14 @@ void free_xenballooned_pages(int nr_pages, struct page **pages)
         *pages = NULL;
 }
 EXPORT_SYMBOL_GPL(free_xenballooned_pages);
+
+/* In the hypervisor.S file. */
+EXPORT_SYMBOL_GPL(HYPERVISOR_event_channel_op);
+EXPORT_SYMBOL_GPL(HYPERVISOR_grant_table_op);
+EXPORT_SYMBOL_GPL(HYPERVISOR_xen_version);
+EXPORT_SYMBOL_GPL(HYPERVISOR_console_io);
+EXPORT_SYMBOL_GPL(HYPERVISOR_sched_op);
+EXPORT_SYMBOL_GPL(HYPERVISOR_hvm_op);
+EXPORT_SYMBOL_GPL(HYPERVISOR_memory_op);
+EXPORT_SYMBOL_GPL(HYPERVISOR_physdev_op);
+EXPORT_SYMBOL_GPL(privcmd_call);
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index ef54a59a9e89..15ac18a56c93 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -1,6 +1,7 @@
 config ARM64
         def_bool y
         select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
+        select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
         select GENERIC_CLOCKEVENTS
         select GENERIC_HARDIRQS_NO_DEPRECATED
         select GENERIC_IOMAP
diff --git a/arch/arm64/include/asm/elf.h b/arch/arm64/include/asm/elf.h
index cf284649dfcb..07fea290d7c1 100644
--- a/arch/arm64/include/asm/elf.h
+++ b/arch/arm64/include/asm/elf.h
@@ -25,12 +25,10 @@
 #include <asm/user.h>
 
 typedef unsigned long elf_greg_t;
-typedef unsigned long elf_freg_t[3];
 
 #define ELF_NGREG (sizeof (struct pt_regs) / sizeof(elf_greg_t))
 typedef elf_greg_t elf_gregset_t[ELF_NGREG];
-
-typedef struct user_fp elf_fpregset_t;
+typedef struct user_fpsimd_state elf_fpregset_t;
 
 #define EM_AARCH64              183
 
@@ -87,7 +85,6 @@ typedef struct user_fp elf_fpregset_t;
 #define R_AARCH64_MOVW_PREL_G2_NC       292
 #define R_AARCH64_MOVW_PREL_G3          293
 
-
 /*
  * These are used to set parameters in the core dumps.
  */
diff --git a/arch/arm64/include/asm/fpsimd.h b/arch/arm64/include/asm/fpsimd.h
index b42fab9f62a9..c43b4ac13008 100644
--- a/arch/arm64/include/asm/fpsimd.h
+++ b/arch/arm64/include/asm/fpsimd.h
@@ -25,9 +25,8 @@
  *  - FPSR and FPCR
  *  - 32 128-bit data registers
  *
- * Note that user_fp forms a prefix of this structure, which is relied
- * upon in the ptrace FP/SIMD accessors. struct user_fpsimd_state must
- * form a prefix of struct fpsimd_state.
+ * Note that user_fpsimd forms a prefix of this structure, which is
+ * relied upon in the ptrace FP/SIMD accessors.
  */
 struct fpsimd_state {
         union {
diff --git a/arch/arm64/include/asm/io.h b/arch/arm64/include/asm/io.h
index 74a2a7d304a9..d2f05a608274 100644
--- a/arch/arm64/include/asm/io.h
+++ b/arch/arm64/include/asm/io.h
@@ -114,7 +114,7 @@ static inline u64 __raw_readq(const volatile void __iomem *addr)
  *  I/O port access primitives.
  */
 #define IO_SPACE_LIMIT          0xffff
-#define PCI_IOBASE              ((void __iomem *)0xffffffbbfffe0000UL)
+#define PCI_IOBASE              ((void __iomem *)(MODULES_VADDR - SZ_2M))
 
 static inline u8 inb(unsigned long addr)
 {
@@ -222,12 +222,12 @@ extern void __iomem *__ioremap(phys_addr_t phys_addr, size_t size, pgprot_t prot
 extern void __iounmap(volatile void __iomem *addr);
 
 #define PROT_DEFAULT            (PTE_TYPE_PAGE | PTE_AF | PTE_DIRTY)
-#define PROT_DEVICE_nGnRE       (PROT_DEFAULT | PTE_XN | PTE_ATTRINDX(MT_DEVICE_nGnRE))
+#define PROT_DEVICE_nGnRE       (PROT_DEFAULT | PTE_PXN | PTE_UXN | PTE_ATTRINDX(MT_DEVICE_nGnRE))
 #define PROT_NORMAL_NC          (PROT_DEFAULT | PTE_ATTRINDX(MT_NORMAL_NC))
 
-#define ioremap(addr, size)             __ioremap((addr), (size), PROT_DEVICE_nGnRE)
-#define ioremap_nocache(addr, size)     __ioremap((addr), (size), PROT_DEVICE_nGnRE)
-#define ioremap_wc(addr, size)          __ioremap((addr), (size), PROT_NORMAL_NC)
+#define ioremap(addr, size)             __ioremap((addr), (size), __pgprot(PROT_DEVICE_nGnRE))
+#define ioremap_nocache(addr, size)     __ioremap((addr), (size), __pgprot(PROT_DEVICE_nGnRE))
+#define ioremap_wc(addr, size)          __ioremap((addr), (size), __pgprot(PROT_NORMAL_NC))
 #define iounmap                         __iounmap
 
 #define ARCH_HAS_IOREMAP_WC
diff --git a/arch/arm64/include/asm/pgtable-hwdef.h b/arch/arm64/include/asm/pgtable-hwdef.h
index 0f3b4581d925..75fd13d289b9 100644
--- a/arch/arm64/include/asm/pgtable-hwdef.h
+++ b/arch/arm64/include/asm/pgtable-hwdef.h
@@ -38,7 +38,8 @@
 #define PMD_SECT_S              (_AT(pmdval_t, 3) << 8)
 #define PMD_SECT_AF             (_AT(pmdval_t, 1) << 10)
 #define PMD_SECT_NG             (_AT(pmdval_t, 1) << 11)
-#define PMD_SECT_XN             (_AT(pmdval_t, 1) << 54)
+#define PMD_SECT_PXN            (_AT(pmdval_t, 1) << 53)
+#define PMD_SECT_UXN            (_AT(pmdval_t, 1) << 54)
 
 /*
  * AttrIndx[2:0] encoding (mapping attributes defined in the MAIR* registers).
@@ -57,7 +58,8 @@
 #define PTE_SHARED              (_AT(pteval_t, 3) << 8)         /* SH[1:0], inner shareable */
 #define PTE_AF                  (_AT(pteval_t, 1) << 10)        /* Access Flag */
 #define PTE_NG                  (_AT(pteval_t, 1) << 11)        /* nG */
-#define PTE_XN                  (_AT(pteval_t, 1) << 54)        /* XN */
+#define PTE_PXN                 (_AT(pteval_t, 1) << 53)        /* Privileged XN */
+#define PTE_UXN                 (_AT(pteval_t, 1) << 54)        /* User XN */
 
 /*
  * AttrIndx[2:0] encoding (mapping attributes defined in the MAIR* registers).
diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h
index 8960239be722..14aba2db6776 100644
--- a/arch/arm64/include/asm/pgtable.h
+++ b/arch/arm64/include/asm/pgtable.h
@@ -62,23 +62,23 @@ extern pgprot_t pgprot_default;
 
 #define _MOD_PROT(p, b) __pgprot(pgprot_val(p) | (b))
 
-#define PAGE_NONE               _MOD_PROT(pgprot_default, PTE_NG | PTE_XN | PTE_RDONLY)
-#define PAGE_SHARED             _MOD_PROT(pgprot_default, PTE_USER | PTE_NG | PTE_XN)
-#define PAGE_SHARED_EXEC        _MOD_PROT(pgprot_default, PTE_USER | PTE_NG)
-#define PAGE_COPY               _MOD_PROT(pgprot_default, PTE_USER | PTE_NG | PTE_XN | PTE_RDONLY)
-#define PAGE_COPY_EXEC          _MOD_PROT(pgprot_default, PTE_USER | PTE_NG | PTE_RDONLY)
-#define PAGE_READONLY           _MOD_PROT(pgprot_default, PTE_USER | PTE_NG | PTE_XN | PTE_RDONLY)
-#define PAGE_READONLY_EXEC      _MOD_PROT(pgprot_default, PTE_USER | PTE_NG | PTE_RDONLY)
-#define PAGE_KERNEL             _MOD_PROT(pgprot_default, PTE_XN | PTE_DIRTY)
-#define PAGE_KERNEL_EXEC        _MOD_PROT(pgprot_default, PTE_DIRTY)
-
-#define __PAGE_NONE             __pgprot(_PAGE_DEFAULT | PTE_NG | PTE_XN | PTE_RDONLY)
-#define __PAGE_SHARED           __pgprot(_PAGE_DEFAULT | PTE_USER | PTE_NG | PTE_XN)
-#define __PAGE_SHARED_EXEC      __pgprot(_PAGE_DEFAULT | PTE_USER | PTE_NG)
-#define __PAGE_COPY             __pgprot(_PAGE_DEFAULT | PTE_USER | PTE_NG | PTE_XN | PTE_RDONLY)
-#define __PAGE_COPY_EXEC        __pgprot(_PAGE_DEFAULT | PTE_USER | PTE_NG | PTE_RDONLY)
-#define __PAGE_READONLY         __pgprot(_PAGE_DEFAULT | PTE_USER | PTE_NG | PTE_XN | PTE_RDONLY)
-#define __PAGE_READONLY_EXEC    __pgprot(_PAGE_DEFAULT | PTE_USER | PTE_NG | PTE_RDONLY)
+#define PAGE_NONE               _MOD_PROT(pgprot_default, PTE_NG | PTE_PXN | PTE_UXN | PTE_RDONLY)
+#define PAGE_SHARED             _MOD_PROT(pgprot_default, PTE_USER | PTE_NG | PTE_PXN | PTE_UXN)
+#define PAGE_SHARED_EXEC        _MOD_PROT(pgprot_default, PTE_USER | PTE_NG | PTE_PXN)
+#define PAGE_COPY               _MOD_PROT(pgprot_default, PTE_USER | PTE_NG | PTE_PXN | PTE_UXN | PTE_RDONLY)
+#define PAGE_COPY_EXEC          _MOD_PROT(pgprot_default, PTE_USER | PTE_NG | PTE_PXN | PTE_RDONLY)
+#define PAGE_READONLY           _MOD_PROT(pgprot_default, PTE_USER | PTE_NG | PTE_PXN | PTE_UXN | PTE_RDONLY)
+#define PAGE_READONLY_EXEC      _MOD_PROT(pgprot_default, PTE_USER | PTE_NG | PTE_PXN | PTE_RDONLY)
+#define PAGE_KERNEL             _MOD_PROT(pgprot_default, PTE_PXN | PTE_UXN | PTE_DIRTY)
+#define PAGE_KERNEL_EXEC        _MOD_PROT(pgprot_default, PTE_UXN | PTE_DIRTY)
+
+#define __PAGE_NONE             __pgprot(_PAGE_DEFAULT | PTE_NG | PTE_PXN | PTE_UXN | PTE_RDONLY)
+#define __PAGE_SHARED           __pgprot(_PAGE_DEFAULT | PTE_USER | PTE_NG | PTE_PXN | PTE_UXN)
+#define __PAGE_SHARED_EXEC      __pgprot(_PAGE_DEFAULT | PTE_USER | PTE_NG | PTE_PXN)
+#define __PAGE_COPY             __pgprot(_PAGE_DEFAULT | PTE_USER | PTE_NG | PTE_PXN | PTE_UXN | PTE_RDONLY)
+#define __PAGE_COPY_EXEC        __pgprot(_PAGE_DEFAULT | PTE_USER | PTE_NG | PTE_PXN | PTE_RDONLY)
+#define __PAGE_READONLY         __pgprot(_PAGE_DEFAULT | PTE_USER | PTE_NG | PTE_PXN | PTE_UXN | PTE_RDONLY)
+#define __PAGE_READONLY_EXEC    __pgprot(_PAGE_DEFAULT | PTE_USER | PTE_NG | PTE_PXN | PTE_RDONLY)
 
 #endif /* __ASSEMBLY__ */
 
@@ -130,10 +130,10 @@ extern struct page *empty_zero_page;
 #define pte_young(pte)          (pte_val(pte) & PTE_AF)
 #define pte_special(pte)        (pte_val(pte) & PTE_SPECIAL)
 #define pte_write(pte)          (!(pte_val(pte) & PTE_RDONLY))
-#define pte_exec(pte)           (!(pte_val(pte) & PTE_XN))
+#define pte_exec(pte)           (!(pte_val(pte) & PTE_UXN))
 
 #define pte_present_exec_user(pte) \
-        ((pte_val(pte) & (PTE_VALID | PTE_USER | PTE_XN)) == \
+        ((pte_val(pte) & (PTE_VALID | PTE_USER | PTE_UXN)) == \
          (PTE_VALID | PTE_USER))
 
 #define PTE_BIT_FUNC(fn,op) \
@@ -262,7 +262,7 @@ static inline pmd_t *pmd_offset(pud_t *pud, unsigned long addr)
 
 static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
 {
-        const pteval_t mask = PTE_USER | PTE_XN | PTE_RDONLY;
+        const pteval_t mask = PTE_USER | PTE_PXN | PTE_UXN | PTE_RDONLY;
         pte_val(pte) = (pte_val(pte) & ~mask) | (pgprot_val(newprot) & mask);
         return pte;
 }
diff --git a/arch/arm64/include/asm/processor.h b/arch/arm64/include/asm/processor.h
index 5d810044feda..77f696c14339 100644
--- a/arch/arm64/include/asm/processor.h
+++ b/arch/arm64/include/asm/processor.h
@@ -43,6 +43,8 @@
 #else
 #define STACK_TOP               STACK_TOP_MAX
 #endif /* CONFIG_COMPAT */
+
+#define ARCH_LOW_ADDRESS_LIMIT  PHYS_MASK
 #endif /* __KERNEL__ */
 
 struct debug_info {
diff --git a/arch/arm64/include/asm/unistd.h b/arch/arm64/include/asm/unistd.h
index 63f853f8b718..68aff2816e86 100644
--- a/arch/arm64/include/asm/unistd.h
+++ b/arch/arm64/include/asm/unistd.h
@@ -14,7 +14,6 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 #ifdef CONFIG_COMPAT
-#define __ARCH_WANT_COMPAT_IPC_PARSE_VERSION
 #define __ARCH_WANT_COMPAT_STAT64
 #define __ARCH_WANT_SYS_GETHOSTNAME
 #define __ARCH_WANT_SYS_PAUSE
diff --git a/arch/arm64/kernel/perf_event.c b/arch/arm64/kernel/perf_event.c
index ecbf2d81ec5c..c76c7241125b 100644
--- a/arch/arm64/kernel/perf_event.c
+++ b/arch/arm64/kernel/perf_event.c
@@ -613,17 +613,11 @@ enum armv8_pmuv3_perf_types {
         ARMV8_PMUV3_PERFCTR_BUS_ACCESS                          = 0x19,
         ARMV8_PMUV3_PERFCTR_MEM_ERROR                           = 0x1A,
         ARMV8_PMUV3_PERFCTR_BUS_CYCLES                          = 0x1D,
-
-        /*
-         * This isn't an architected event.
-         * We detect this event number and use the cycle counter instead.
-         */
-        ARMV8_PMUV3_PERFCTR_CPU_CYCLES                          = 0xFF,
 };
 
 /* PMUv3 HW events mapping. */
 static const unsigned armv8_pmuv3_perf_map[PERF_COUNT_HW_MAX] = {
-        [PERF_COUNT_HW_CPU_CYCLES]              = ARMV8_PMUV3_PERFCTR_CPU_CYCLES,
+        [PERF_COUNT_HW_CPU_CYCLES]              = ARMV8_PMUV3_PERFCTR_CLOCK_CYCLES,
         [PERF_COUNT_HW_INSTRUCTIONS]            = ARMV8_PMUV3_PERFCTR_INSTR_EXECUTED,
         [PERF_COUNT_HW_CACHE_REFERENCES]        = ARMV8_PMUV3_PERFCTR_L1_DCACHE_ACCESS,
         [PERF_COUNT_HW_CACHE_MISSES]            = ARMV8_PMUV3_PERFCTR_L1_DCACHE_REFILL,
@@ -1106,7 +1100,7 @@ static int armv8pmu_get_event_idx(struct pmu_hw_events *cpuc,
         unsigned long evtype = event->config_base & ARMV8_EVTYPE_EVENT;
 
         /* Always place a cycle counter into the cycle counter. */
-        if (evtype == ARMV8_PMUV3_PERFCTR_CPU_CYCLES) {
+        if (evtype == ARMV8_PMUV3_PERFCTR_CLOCK_CYCLES) {
                 if (test_and_set_bit(ARMV8_IDX_CYCLE_COUNTER, cpuc->used_mask))
                         return -EAGAIN;
 
diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c
index f22965ea1cfc..e04cebdbb47f 100644
--- a/arch/arm64/kernel/process.c
+++ b/arch/arm64/kernel/process.c
@@ -310,24 +310,6 @@ struct task_struct *__switch_to(struct task_struct *prev,
 }
 
 /*
- * Fill in the task's elfregs structure for a core dump.
- */
-int dump_task_regs(struct task_struct *t, elf_gregset_t *elfregs)
-{
-        elf_core_copy_regs(elfregs, task_pt_regs(t));
-        return 1;
-}
-
-/*
- * fill in the fpe structure for a core dump...
- */
-int dump_fpu (struct pt_regs *regs, struct user_fp *fp)
-{
-        return 0;
-}
-EXPORT_SYMBOL(dump_fpu);
-
-/*
  * Shuffle the argument into the correct register before calling the
  * thread function.  x1 is the thread argument, x2 is the pointer to
  * the thread function, and x3 points to the exit function.
diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c
index 226b6bf6e9c2..538300f2273d 100644
--- a/arch/arm64/kernel/smp.c
+++ b/arch/arm64/kernel/smp.c
@@ -211,8 +211,7 @@ asmlinkage void __cpuinit secondary_start_kernel(void)
          * before we continue.
          */
         set_cpu_online(cpu, true);
-        while (!cpu_active(cpu))
-                cpu_relax();
+        complete(&cpu_running);
 
         /*
          * OK, it's off to the idle thread for us
diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c
index efbf7df05d3f..4cd28931dba9 100644
--- a/arch/arm64/mm/init.c
+++ b/arch/arm64/mm/init.c
@@ -80,7 +80,7 @@ static void __init zone_sizes_init(unsigned long min, unsigned long max)
 #ifdef CONFIG_ZONE_DMA32
         /* 4GB maximum for 32-bit only capable devices */
         max_dma32 = min(max, MAX_DMA32_PFN);
-        zone_size[ZONE_DMA32] = max_dma32 - min;
+        zone_size[ZONE_DMA32] = max(min, max_dma32) - min;
 #endif
         zone_size[ZONE_NORMAL] = max - max_dma32;
 
diff --git a/arch/h8300/include/asm/cache.h b/arch/h8300/include/asm/cache.h
index c6350283649d..05887a1d80e5 100644
--- a/arch/h8300/include/asm/cache.h
+++ b/arch/h8300/include/asm/cache.h
@@ -2,7 +2,8 @@
 #define __ARCH_H8300_CACHE_H
 
 /* bytes per L1 cache line */
-#define        L1_CACHE_BYTES  4
+#define        L1_CACHE_SHIFT  2
+#define        L1_CACHE_BYTES  (1 << L1_CACHE_SHIFT)
 
 /* m68k-elf-gcc  2.95.2 doesn't like these */
 
diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c
index acd5b68e8871..082e383c1b6f 100644
--- a/arch/ia64/mm/init.c
+++ b/arch/ia64/mm/init.c
@@ -637,7 +637,6 @@ mem_init (void)
 
         high_memory = __va(max_low_pfn * PAGE_SIZE);
 
-        reset_zone_present_pages();
         for_each_online_pgdat(pgdat)
                 if (pgdat->bdata->node_bootmem_map)
                         totalram_pages += free_all_bootmem_node(pgdat);
diff --git a/arch/mips/cavium-octeon/executive/cvmx-l2c.c b/arch/mips/cavium-octeon/executive/cvmx-l2c.c
index d38246e33ddb..9f883bf76953 100644
--- a/arch/mips/cavium-octeon/executive/cvmx-l2c.c
+++ b/arch/mips/cavium-octeon/executive/cvmx-l2c.c
@@ -30,6 +30,7 @@
  * measurement, and debugging facilities.
  */
 
+#include <linux/irqflags.h>
 #include <asm/octeon/cvmx.h>
 #include <asm/octeon/cvmx-l2c.h>
 #include <asm/octeon/cvmx-spinlock.h>
diff --git a/arch/mips/fw/arc/misc.c b/arch/mips/fw/arc/misc.c
index 7cf80ca2c1d2..f9f5307434c2 100644
--- a/arch/mips/fw/arc/misc.c
+++ b/arch/mips/fw/arc/misc.c
@@ -11,6 +11,7 @@
  */
 #include <linux/init.h>
 #include <linux/kernel.h>
+#include <linux/irqflags.h>
 
 #include <asm/bcache.h>
 
diff --git a/arch/mips/include/asm/bitops.h b/arch/mips/include/asm/bitops.h
index 82ad35ce2b45..46ac73abd5ee 100644
--- a/arch/mips/include/asm/bitops.h
+++ b/arch/mips/include/asm/bitops.h
@@ -14,7 +14,6 @@
 #endif
 
 #include <linux/compiler.h>
-#include <linux/irqflags.h>
 #include <linux/types.h>
 #include <asm/barrier.h>
 #include <asm/byteorder.h>              /* sigh ... */
@@ -44,6 +43,24 @@
 #define smp_mb__before_clear_bit()      smp_mb__before_llsc()
 #define smp_mb__after_clear_bit()       smp_llsc_mb()
 
+
+/*
+ * These are the "slower" versions of the functions and are in bitops.c.
+ * These functions call raw_local_irq_{save,restore}().
+ */
+void __mips_set_bit(unsigned long nr, volatile unsigned long *addr);
+void __mips_clear_bit(unsigned long nr, volatile unsigned long *addr);
+void __mips_change_bit(unsigned long nr, volatile unsigned long *addr);
+int __mips_test_and_set_bit(unsigned long nr,
+                            volatile unsigned long *addr);
+int __mips_test_and_set_bit_lock(unsigned long nr,
+                                 volatile unsigned long *addr);
+int __mips_test_and_clear_bit(unsigned long nr,
+                              volatile unsigned long *addr);
+int __mips_test_and_change_bit(unsigned long nr,
+                               volatile unsigned long *addr);
+
+
 /*
  * set_bit - Atomically set a bit in memory
  * @nr: the bit to set
@@ -57,7 +74,7 @@
 static inline void set_bit(unsigned long nr, volatile unsigned long *addr)
 {
         unsigned long *m = ((unsigned long *) addr) + (nr >> SZLONG_LOG);
-        unsigned short bit = nr & SZLONG_MASK;
+        int bit = nr & SZLONG_MASK;
         unsigned long temp;
 
         if (kernel_uses_llsc && R10000_LLSC_WAR) {
@@ -92,17 +109,8 @@ static inline void set_bit(unsigned long nr, volatile unsigned long *addr)
                         : "=&r" (temp), "+m" (*m)
                         : "ir" (1UL << bit));
                 } while (unlikely(!temp));
-        } else {
-                volatile unsigned long *a = addr;
-                unsigned long mask;
-                unsigned long flags;
-
-                a += nr >> SZLONG_LOG;
-                mask = 1UL << bit;
-                raw_local_irq_save(flags);
-                *a |= mask;
-                raw_local_irq_restore(flags);
-        }
+        } else
+                __mips_set_bit(nr, addr);
 }
 
 /*
@@ -118,7 +126,7 @@ static inline void set_bit(unsigned long nr, volatile unsigned long *addr)
 static inline void clear_bit(unsigned long nr, volatile unsigned long *addr)
 {
         unsigned long *m = ((unsigned long *) addr) + (nr >> SZLONG_LOG);
-        unsigned short bit = nr & SZLONG_MASK;
+        int bit = nr & SZLONG_MASK;
         unsigned long temp;
 
         if (kernel_uses_llsc && R10000_LLSC_WAR) {
@@ -153,17 +161,8 @@ static inline void clear_bit(unsigned long nr, volatile unsigned long *addr)
                         : "=&r" (temp), "+m" (*m)
                         : "ir" (~(1UL << bit)));
                 } while (unlikely(!temp));
-        } else {
-                volatile unsigned long *a = addr;
-                unsigned long mask;
-                unsigned long flags;
-
-                a += nr >> SZLONG_LOG;
-                mask = 1UL << bit;
-                raw_local_irq_save(flags);
-                *a &= ~mask;
-                raw_local_irq_restore(flags);
-        }
+        } else
+                __mips_clear_bit(nr, addr);
 }
 
 /*
@@ -191,7 +190,7 @@ static inline void clear_bit_unlock(unsigned long nr, volatile unsigned long *ad
  */
 static inline void change_bit(unsigned long nr, volatile unsigned long *addr)
 {
-        unsigned short bit = nr & SZLONG_MASK;
+        int bit = nr & SZLONG_MASK;
 
         if (kernel_uses_llsc && R10000_LLSC_WAR) {
                 unsigned long *m = ((unsigned long *) addr) + (nr >> SZLONG_LOG);
@@ -220,17 +219,8 @@ static inline void change_bit(unsigned long nr, volatile unsigned long *addr)
                         : "=&r" (temp), "+m" (*m)
                         : "ir" (1UL << bit));
                 } while (unlikely(!temp));
-        } else {
-                volatile unsigned long *a = addr;
-                unsigned long mask;
-                unsigned long flags;
-
-                a += nr >> SZLONG_LOG;
-                mask = 1UL << bit;
-                raw_local_irq_save(flags);
-                *a ^= mask;
-                raw_local_irq_restore(flags);
-        }
+        } else
+                __mips_change_bit(nr, addr);
 }
 
 /*
@@ -244,7 +234,7 @@ static inline void change_bit(unsigned long nr, volatile unsigned long *addr)
 static inline int test_and_set_bit(unsigned long nr,
         volatile unsigned long *addr)
 {
-        unsigned short bit = nr & SZLONG_MASK;
+        int bit = nr & SZLONG_MASK;
         unsigned long res;
 
         smp_mb__before_llsc();
@@ -281,18 +271,8 @@ static inline int test_and_set_bit(unsigned long nr,
                 } while (unlikely(!res));
 
                 res = temp & (1UL << bit);
-        } else {
-                volatile unsigned long *a = addr;
-                unsigned long mask;
-                unsigned long flags;
-
-                a += nr >> SZLONG_LOG;
-                mask = 1UL << bit;
-                raw_local_irq_save(flags);
-                res = (mask & *a);
-                *a |= mask;
-                raw_local_irq_restore(flags);
-        }
+        } else
+                res = __mips_test_and_set_bit(nr, addr);
 
         smp_llsc_mb();
 
@@ -310,7 +290,7 @@ static inline int test_and_set_bit(unsigned long nr,
 static inline int test_and_set_bit_lock(unsigned long nr,
         volatile unsigned long *addr)
 {
-        unsigned short bit = nr & SZLONG_MASK;
+        int bit = nr & SZLONG_MASK;
         unsigned long res;
 
         if (kernel_uses_llsc && R10000_LLSC_WAR) {
@@ -345,18 +325,8 @@ static inline int test_and_set_bit_lock(unsigned long nr,
                 } while (unlikely(!res));
 
                 res = temp & (1UL << bit);
-        } else {
-                volatile unsigned long *a = addr;
-                unsigned long mask;
-                unsigned long flags;
-
-                a += nr >> SZLONG_LOG;
-                mask = 1UL << bit;
-                raw_local_irq_save(flags);
-                res = (mask & *a);
-                *a |= mask;
-                raw_local_irq_restore(flags);
-        }
+        } else
+                res = __mips_test_and_set_bit_lock(nr, addr);
 
         smp_llsc_mb();
 
@@ -373,7 +343,7 @@ static inline int test_and_set_bit_lock(unsigned long nr,
 static inline int test_and_clear_bit(unsigned long nr,
         volatile unsigned long *addr)
 {
-        unsigned short bit = nr & SZLONG_MASK;
+        int bit = nr & SZLONG_MASK;
         unsigned long res;
 
         smp_mb__before_llsc();
@@ -428,18 +398,8 @@ static inline int test_and_clear_bit(unsigned long nr,
                 } while (unlikely(!res));
 
                 res = temp & (1UL << bit);
-        } else {
-                volatile unsigned long *a = addr;
-                unsigned long mask;
-                unsigned long flags;
-
-                a += nr >> SZLONG_LOG;
-                mask = 1UL << bit;
-                raw_local_irq_save(flags);
-                res = (mask & *a);
-                *a &= ~mask;
-                raw_local_irq_restore(flags);
-        }
+        } else
+                res = __mips_test_and_clear_bit(nr, addr);
 
         smp_llsc_mb();
 
@@ -457,7 +417,7 @@ static inline int test_and_clear_bit(unsigned long nr,
 static inline int test_and_change_bit(unsigned long nr,
         volatile unsigned long *addr)
 {
-        unsigned short bit = nr & SZLONG_MASK;
+        int bit = nr & SZLONG_MASK;
         unsigned long res;
 
         smp_mb__before_llsc();
@@ -494,18 +454,8 @@ static inline int test_and_change_bit(unsigned long nr,
                 } while (unlikely(!res));
 
                 res = temp & (1UL << bit);
-        } else {
-                volatile unsigned long *a = addr;
-                unsigned long mask;
-                unsigned long flags;
-
-                a += nr >> SZLONG_LOG;
-                mask = 1UL << bit;
-                raw_local_irq_save(flags);
-                res = (mask & *a);
-                *a ^= mask;
-                raw_local_irq_restore(flags);
-        }
+        } else
+                res = __mips_test_and_change_bit(nr, addr);
 
         smp_llsc_mb();
 
diff --git a/arch/mips/include/asm/compat.h b/arch/mips/include/asm/compat.h
index 58277e0e9cd4..3c5d1464b7bd 100644
--- a/arch/mips/include/asm/compat.h
+++ b/arch/mips/include/asm/compat.h
@@ -290,7 +290,7 @@ struct compat_shmid64_ds {
 
 static inline int is_compat_task(void)
 {
-        return test_thread_flag(TIF_32BIT);
+        return test_thread_flag(TIF_32BIT_ADDR);
 }
 
 #endif /* _ASM_COMPAT_H */
diff --git a/arch/mips/include/asm/io.h b/arch/mips/include/asm/io.h
index 29d9c23c20c7..ff2e0345e013 100644
--- a/arch/mips/include/asm/io.h
+++ b/arch/mips/include/asm/io.h
@@ -15,6 +15,7 @@
 #include <linux/compiler.h>
 #include <linux/kernel.h>
 #include <linux/types.h>
+#include <linux/irqflags.h>
 
 #include <asm/addrspace.h>
 #include <asm/bug.h>
diff --git a/arch/mips/include/asm/irqflags.h b/arch/mips/include/asm/irqflags.h
index 309cbcd6909c..9f3384c789d7 100644
--- a/arch/mips/include/asm/irqflags.h
+++ b/arch/mips/include/asm/irqflags.h
@@ -16,83 +16,13 @@
 #include <linux/compiler.h>
 #include <asm/hazards.h>
 
-__asm__(
-        "       .macro  arch_local_irq_enable                           \n"
-        "       .set    push                                            \n"
-        "       .set    reorder                                         \n"
-        "       .set    noat                                            \n"
-#ifdef CONFIG_MIPS_MT_SMTC
-        "       mfc0    $1, $2, 1       # SMTC - clear TCStatus.IXMT    \n"
-        "       ori     $1, 0x400                                       \n"
-        "       xori    $1, 0x400                                       \n"
-        "       mtc0    $1, $2, 1                                       \n"
-#elif defined(CONFIG_CPU_MIPSR2)
-        "       ei                                                      \n"
-#else
-        "       mfc0    $1,$12                                          \n"
-        "       ori     $1,0x1f                                         \n"
-        "       xori    $1,0x1e                                         \n"
-        "       mtc0    $1,$12                                          \n"
-#endif
-        "       irq_enable_hazard                                       \n"
-        "       .set    pop                                             \n"
-        "       .endm");
+#if defined(CONFIG_CPU_MIPSR2) && !defined(CONFIG_MIPS_MT_SMTC)
 
-extern void smtc_ipi_replay(void);
-
-static inline void arch_local_irq_enable(void)
-{
-#ifdef CONFIG_MIPS_MT_SMTC
-        /*
-         * SMTC kernel needs to do a software replay of queued
-         * IPIs, at the cost of call overhead on each local_irq_enable()
-         */
-        smtc_ipi_replay();
-#endif
-        __asm__ __volatile__(
-                "arch_local_irq_enable"
-                : /* no outputs */
-                : /* no inputs */
-                : "memory");
-}
-
-
-/*
- * For cli() we have to insert nops to make sure that the new value
- * has actually arrived in the status register before the end of this
- * macro.
- * R4000/R4400 need three nops, the R4600 two nops and the R10000 needs
- * no nops at all.
- */
-/*
- * For TX49, operating only IE bit is not enough.
- *
- * If mfc0 $12 follows store and the mfc0 is last instruction of a
- * page and fetching the next instruction causes TLB miss, the result
- * of the mfc0 might wrongly contain EXL bit.
- *
- * ERT-TX49H2-027, ERT-TX49H3-012, ERT-TX49HL3-006, ERT-TX49H4-008
- *
- * Workaround: mask EXL bit of the result or place a nop before mfc0.
- */
 __asm__(
         "       .macro  arch_local_irq_disable\n"
         "       .set    push                                            \n"
         "       .set    noat                                            \n"
-#ifdef CONFIG_MIPS_MT_SMTC
-        "       mfc0    $1, $2, 1                                       \n"
-        "       ori     $1, 0x400                                       \n"
-        "       .set    noreorder                                       \n"
-        "       mtc0    $1, $2, 1                                       \n"
-#elif defined(CONFIG_CPU_MIPSR2)
         "       di                                                      \n"
-#else
-        "       mfc0    $1,$12                                          \n"
-        "       ori     $1,0x1f                                         \n"
-        "       xori    $1,0x1f                                         \n"
-        "       .set    noreorder                                       \n"
-        "       mtc0    $1,$12                                          \n"
-#endif
         "       irq_disable_hazard                                      \n"
         "       .set    pop                                             \n"
         "       .endm                                                   \n");
@@ -106,46 +36,14 @@ static inline void arch_local_irq_disable(void)
                 : "memory");
 }
 
-__asm__(
-        "       .macro  arch_local_save_flags flags                     \n"
-        "       .set    push                                            \n"
-        "       .set    reorder                                         \n"
-#ifdef CONFIG_MIPS_MT_SMTC
-        "       mfc0    \\flags, $2, 1                                  \n"
-#else
-        "       mfc0    \\flags, $12                                    \n"
-#endif
-        "       .set    pop                                             \n"
-        "       .endm                                                   \n");
-
-static inline unsigned long arch_local_save_flags(void)
-{
-        unsigned long flags;
-        asm volatile("arch_local_save_flags %0" : "=r" (flags));
-        return flags;
-}
 
 __asm__(
         "       .macro  arch_local_irq_save result                      \n"
         "       .set    push                                            \n"
         "       .set    reorder                                         \n"
         "       .set    noat                                            \n"
-#ifdef CONFIG_MIPS_MT_SMTC
-        "       mfc0    \\result, $2, 1                                 \n"
-        "       ori     $1, \\result, 0x400                             \n"
-        "       .set    noreorder                                       \n"
-        "       mtc0    $1, $2, 1                                       \n"
-        "       andi    \\result, \\result, 0x400                       \n"
-#elif defined(CONFIG_CPU_MIPSR2)
         "       di      \\result                                        \n"
         "       andi    \\result, 1                                     \n"
-#else
-        "       mfc0    \\result, $12                                   \n"
-        "       ori     $1, \\result, 0x1f                              \n"
-        "       xori    $1, 0x1f                                        \n"
-        "       .set    noreorder                                       \n"
-        "       mtc0    $1, $12                                         \n"
-#endif
         "       irq_disable_hazard                                      \n"
         "       .set    pop                                             \n"
         "       .endm                                                   \n");
@@ -160,61 +58,37 @@ static inline unsigned long arch_local_irq_save(void)
         return flags;
 }
 
+
 __asm__(
         "       .macro  arch_local_irq_restore flags                    \n"
         "       .set    push                                            \n"
         "       .set    noreorder                                       \n"
         "       .set    noat                                            \n"
-#ifdef CONFIG_MIPS_MT_SMTC
-        "mfc0   $1, $2, 1                                               \n"
-        "andi   \\flags, 0x400                                          \n"
-        "ori    $1, 0x400                                               \n"
-        "xori   $1, 0x400                                               \n"
-        "or     \\flags, $1                                             \n"
-        "mtc0   \\flags, $2, 1                                          \n"
-#elif defined(CONFIG_CPU_MIPSR2) && defined(CONFIG_IRQ_CPU)
+#if defined(CONFIG_IRQ_CPU)
         /*
          * Slow, but doesn't suffer from a relatively unlikely race
          * condition we're having since days 1.
          */
         "       beqz    \\flags, 1f                                     \n"
-        "        di                                                     \n"
+        "       di                                                      \n"
         "       ei                                                      \n"
         "1:                                                             \n"
-#elif defined(CONFIG_CPU_MIPSR2)
+#else
         /*
          * Fast, dangerous.  Life is fun, life is good.
          */
         "       mfc0    $1, $12                                         \n"
         "       ins     $1, \\flags, 0, 1                               \n"
         "       mtc0    $1, $12                                         \n"
-#else
-        "       mfc0    $1, $12                                         \n"
-        "       andi    \\flags, 1                                      \n"
-        "       ori     $1, 0x1f                                        \n"
-        "       xori    $1, 0x1f                                        \n"
-        "       or      \\flags, $1                                     \n"
-        "       mtc0    \\flags, $12                                    \n"
 #endif
         "       irq_disable_hazard                                      \n"
         "       .set    pop                                             \n"
         "       .endm                                                   \n");
 
-
 static inline void arch_local_irq_restore(unsigned long flags)
 {
         unsigned long __tmp1;
 
-#ifdef CONFIG_MIPS_MT_SMTC
-        /*
-         * SMTC kernel needs to do a software replay of queued
-         * IPIs, at the cost of branch and call overhead on each
-         * local_irq_restore()
-         */
-        if (unlikely(!(flags & 0x0400)))
-                smtc_ipi_replay();
-#endif
-
         __asm__ __volatile__(
                 "arch_local_irq_restore\t%0"
                 : "=r" (__tmp1)
@@ -232,6 +106,75 @@ static inline void __arch_local_irq_restore(unsigned long flags)
                 : "0" (flags)
                 : "memory");
 }
+#else
+/* Functions that require preempt_{dis,en}able() are in mips-atomic.c */
+void arch_local_irq_disable(void);
+unsigned long arch_local_irq_save(void);
+void arch_local_irq_restore(unsigned long flags);
+void __arch_local_irq_restore(unsigned long flags);
+#endif /* if defined(CONFIG_CPU_MIPSR2) && !defined(CONFIG_MIPS_MT_SMTC) */
+
+
+__asm__(
+        "       .macro  arch_local_irq_enable                           \n"
+        "       .set    push                                            \n"
+        "       .set    reorder                                         \n"
+        "       .set    noat                                            \n"
+#ifdef CONFIG_MIPS_MT_SMTC
+        "       mfc0    $1, $2, 1       # SMTC - clear TCStatus.IXMT    \n"
+        "       ori     $1, 0x400                                       \n"
+        "       xori    $1, 0x400                                       \n"
+        "       mtc0    $1, $2, 1                                       \n"
+#elif defined(CONFIG_CPU_MIPSR2)
+        "       ei                                                      \n"
+#else
+        "       mfc0    $1,$12                                          \n"
+        "       ori     $1,0x1f                                         \n"
+        "       xori    $1,0x1e                                         \n"
+        "       mtc0    $1,$12                                          \n"
+#endif
+        "       irq_enable_hazard                                       \n"
+        "       .set    pop                                             \n"
+        "       .endm");
+
+extern void smtc_ipi_replay(void);
+
+static inline void arch_local_irq_enable(void)
+{
+#ifdef CONFIG_MIPS_MT_SMTC
+        /*
+         * SMTC kernel needs to do a software replay of queued
+         * IPIs, at the cost of call overhead on each local_irq_enable()
+         */
+        smtc_ipi_replay();
+#endif
+        __asm__ __volatile__(
+                "arch_local_irq_enable"
+                : /* no outputs */
+                : /* no inputs */
+                : "memory");
+}
+
+
+__asm__(
+        "       .macro  arch_local_save_flags flags                     \n"
+        "       .set    push                                            \n"
+        "       .set    reorder                                         \n"
+#ifdef CONFIG_MIPS_MT_SMTC
+        "       mfc0    \\flags, $2, 1                                  \n"
+#else
+        "       mfc0    \\flags, $12                                    \n"
+#endif
+        "       .set    pop                                             \n"
+        "       .endm                                                   \n");
+
+static inline unsigned long arch_local_save_flags(void)
+{
+        unsigned long flags;
+        asm volatile("arch_local_save_flags %0" : "=r" (flags));
+        return flags;
+}
+
 
 static inline int arch_irqs_disabled_flags(unsigned long flags)
 {
@@ -245,7 +188,7 @@ static inline int arch_irqs_disabled_flags(unsigned long flags)
 #endif
 }
 
-#endif
+#endif /* #ifndef __ASSEMBLY__ */
 
 /*
  * Do the CPU's IRQ-state tracing from assembly code.
diff --git a/arch/mips/include/asm/thread_info.h b/arch/mips/include/asm/thread_info.h
index 8debe9e91754..18806a52061c 100644
--- a/arch/mips/include/asm/thread_info.h
+++ b/arch/mips/include/asm/thread_info.h
@@ -112,12 +112,6 @@ register struct thread_info *__current_thread_info __asm__("$28");
 #define TIF_LOAD_WATCH          25      /* If set, load watch registers */
 #define TIF_SYSCALL_TRACE       31      /* syscall trace active */
 
-#ifdef CONFIG_MIPS32_O32
-#define TIF_32BIT TIF_32BIT_REGS
-#elif defined(CONFIG_MIPS32_N32)
-#define TIF_32BIT _TIF_32BIT_ADDR
-#endif /* CONFIG_MIPS32_O32 */
-
 #define _TIF_SYSCALL_TRACE      (1<<TIF_SYSCALL_TRACE)
 #define _TIF_SIGPENDING         (1<<TIF_SIGPENDING)
 #define _TIF_NEED_RESCHED       (1<<TIF_NEED_RESCHED)
diff --git a/arch/mips/lib/Makefile b/arch/mips/lib/Makefile
index c4a82e841c73..eeddc58802e1 100644
--- a/arch/mips/lib/Makefile
+++ b/arch/mips/lib/Makefile
@@ -2,8 +2,9 @@
 # Makefile for MIPS-specific library files..
 #
 
-lib-y   += csum_partial.o delay.o memcpy.o memset.o \
-           strlen_user.o strncpy_user.o strnlen_user.o uncached.o
+lib-y   += bitops.o csum_partial.o delay.o memcpy.o memset.o \
+           mips-atomic.o strlen_user.o strncpy_user.o \
+           strnlen_user.o uncached.o
 
 obj-y                   += iomap.o
 obj-$(CONFIG_PCI)       += iomap-pci.o
diff --git a/arch/mips/lib/bitops.c b/arch/mips/lib/bitops.c
new file mode 100644
index 000000000000..239a9c957b02
--- /dev/null
+++ b/arch/mips/lib/bitops.c
@@ -0,0 +1,179 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (c) 1994-1997, 99, 2000, 06, 07 Ralf Baechle (ralf@linux-mips.org)
+ * Copyright (c) 1999, 2000  Silicon Graphics, Inc.
+ */
+#include <linux/bitops.h>
+#include <linux/irqflags.h>
+#include <linux/export.h>
+
+
+/**
+ * __mips_set_bit - Atomically set a bit in memory.  This is called by
+ * set_bit() if it cannot find a faster solution.
+ * @nr: the bit to set
+ * @addr: the address to start counting from
+ */
+void __mips_set_bit(unsigned long nr, volatile unsigned long *addr)
+{
+        volatile unsigned long *a = addr;
+        unsigned bit = nr & SZLONG_MASK;
+        unsigned long mask;
+        unsigned long flags;
+
+        a += nr >> SZLONG_LOG;
+        mask = 1UL << bit;
+        raw_local_irq_save(flags);
+        *a |= mask;
+        raw_local_irq_restore(flags);
+}
+EXPORT_SYMBOL(__mips_set_bit);
+
+
+/**
+ * __mips_clear_bit - Clears a bit in memory.  This is called by clear_bit() if
+ * it cannot find a faster solution.
+ * @nr: Bit to clear
+ * @addr: Address to start counting from
+ */
+void __mips_clear_bit(unsigned long nr, volatile unsigned long *addr)
+{
+        volatile unsigned long *a = addr;
+        unsigned bit = nr & SZLONG_MASK;
+        unsigned long mask;
+        unsigned long flags;
+
+        a += nr >> SZLONG_LOG;
+        mask = 1UL << bit;
+        raw_local_irq_save(flags);
+        *a &= ~mask;
+        raw_local_irq_restore(flags);
+}
+EXPORT_SYMBOL(__mips_clear_bit);
+
+
+/**
+ * __mips_change_bit - Toggle a bit in memory.  This is called by change_bit()
+ * if it cannot find a faster solution.
+ * @nr: Bit to change
+ * @addr: Address to start counting from
+ */
+void __mips_change_bit(unsigned long nr, volatile unsigned long *addr)
+{
+        volatile unsigned long *a = addr;
+        unsigned bit = nr & SZLONG_MASK;
+        unsigned long mask;
+        unsigned long flags;
+
+        a += nr >> SZLONG_LOG;
+        mask = 1UL << bit;
+        raw_local_irq_save(flags);
+        *a ^= mask;
+        raw_local_irq_restore(flags);
+}
+EXPORT_SYMBOL(__mips_change_bit);
+
+
+/**
+ * __mips_test_and_set_bit - Set a bit and return its old value.  This is
+ * called by test_and_set_bit() if it cannot find a faster solution.
+ * @nr: Bit to set
+ * @addr: Address to count from
+ */
+int __mips_test_and_set_bit(unsigned long nr,
+                            volatile unsigned long *addr)
+{
+        volatile unsigned long *a = addr;
+        unsigned bit = nr & SZLONG_MASK;
+        unsigned long mask;
+        unsigned long flags;
+        unsigned long res;
+
+        a += nr >> SZLONG_LOG;
+        mask = 1UL << bit;
+        raw_local_irq_save(flags);
+        res = (mask & *a);
+        *a |= mask;
+        raw_local_irq_restore(flags);
+        return res;
+}
+EXPORT_SYMBOL(__mips_test_and_set_bit);
+
+
+/**
+ * __mips_test_and_set_bit_lock - Set a bit and return its old value.  This is
+ * called by test_and_set_bit_lock() if it cannot find a faster solution.
+ * @nr: Bit to set
+ * @addr: Address to count from
+ */
+int __mips_test_and_set_bit_lock(unsigned long nr,
+                                 volatile unsigned long *addr)
+{
+        volatile unsigned long *a = addr;
+        unsigned bit = nr & SZLONG_MASK;
+        unsigned long mask;
+        unsigned long flags;
+        unsigned long res;
+
+        a += nr >> SZLONG_LOG;
+        mask = 1UL << bit;
+        raw_local_irq_save(flags);
+        res = (mask & *a);
+        *a |= mask;
+        raw_local_irq_restore(flags);
+        return res;
+}
+EXPORT_SYMBOL(__mips_test_and_set_bit_lock);
+
+
+/**
+ * __mips_test_and_clear_bit - Clear a bit and return its old value.  This is
+ * called by test_and_clear_bit() if it cannot find a faster solution.
+ * @nr: Bit to clear
+ * @addr: Address to count from
+ */
+int __mips_test_and_clear_bit(unsigned long nr, volatile unsigned long *addr)
+{
+        volatile unsigned long *a = addr;
+        unsigned bit = nr & SZLONG_MASK;
+        unsigned long mask;
+        unsigned long flags;
+        unsigned long res;
+
+        a += nr >> SZLONG_LOG;
+        mask = 1UL << bit;
+        raw_local_irq_save(flags);
+        res = (mask & *a);
+        *a &= ~mask;
+        raw_local_irq_restore(flags);
+        return res;
+}
+EXPORT_SYMBOL(__mips_test_and_clear_bit);
+
+
+/**
+ * __mips_test_and_change_bit - Change a bit and return its old value.  This is
+ * called by test_and_change_bit() if it cannot find a faster solution.
+ * @nr: Bit to change
+ * @addr: Address to count from
+ */
+int __mips_test_and_change_bit(unsigned long nr, volatile unsigned long *addr)
+{
+        volatile unsigned long *a = addr;
+        unsigned bit = nr & SZLONG_MASK;
+        unsigned long mask;
+        unsigned long flags;
+        unsigned long res;
+
+        a += nr >> SZLONG_LOG;
+        mask = 1UL << bit;
+        raw_local_irq_save(flags);
+        res = (mask & *a);
+        *a ^= mask;
+        raw_local_irq_restore(flags);
+        return res;
+}
+EXPORT_SYMBOL(__mips_test_and_change_bit);
diff --git a/arch/mips/lib/mips-atomic.c b/arch/mips/lib/mips-atomic.c
new file mode 100644
index 000000000000..e091430dbeb1
--- /dev/null
+++ b/arch/mips/lib/mips-atomic.c
@@ -0,0 +1,176 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 1994, 95, 96, 97, 98, 99, 2003 by Ralf Baechle
+ * Copyright (C) 1996 by Paul M. Antoine
+ * Copyright (C) 1999 Silicon Graphics
+ * Copyright (C) 2000 MIPS Technologies, Inc.
+ */
+#include <asm/irqflags.h>
+#include <asm/hazards.h>
+#include <linux/compiler.h>
+#include <linux/preempt.h>
+#include <linux/export.h>
+
+#if !defined(CONFIG_CPU_MIPSR2) || defined(CONFIG_MIPS_MT_SMTC)
+
+/*
+ * For cli() we have to insert nops to make sure that the new value
+ * has actually arrived in the status register before the end of this
+ * macro.
+ * R4000/R4400 need three nops, the R4600 two nops and the R10000 needs
+ * no nops at all.
+ */
+/*
+ * For TX49, operating only IE bit is not enough.
+ *
+ * If mfc0 $12 follows store and the mfc0 is last instruction of a
+ * page and fetching the next instruction causes TLB miss, the result
+ * of the mfc0 might wrongly contain EXL bit.
+ *
+ * ERT-TX49H2-027, ERT-TX49H3-012, ERT-TX49HL3-006, ERT-TX49H4-008
+ *
+ * Workaround: mask EXL bit of the result or place a nop before mfc0.
+ */
+__asm__(
+        "       .macro  arch_local_irq_disable\n"
+        "       .set    push                                            \n"
+        "       .set    noat                                            \n"
+#ifdef CONFIG_MIPS_MT_SMTC
+        "       mfc0    $1, $2, 1                                       \n"
+        "       ori     $1, 0x400                                       \n"
+        "       .set    noreorder                                       \n"
+        "       mtc0    $1, $2, 1                                       \n"
+#elif defined(CONFIG_CPU_MIPSR2)
+        /* see irqflags.h for inline function */
+#else
+        "       mfc0    $1,$12                                          \n"
+        "       ori     $1,0x1f                                         \n"
+        "       xori    $1,0x1f                                         \n"
+        "       .set    noreorder                                       \n"
+        "       mtc0    $1,$12                                          \n"
+#endif
+        "       irq_disable_hazard                                      \n"
+        "       .set    pop                                             \n"
+        "       .endm                                                   \n");
+
+void arch_local_irq_disable(void)
+{
+        preempt_disable();
+        __asm__ __volatile__(
+                "arch_local_irq_disable"
+                : /* no outputs */
+                : /* no inputs */
+                : "memory");
+        preempt_enable();
+}
+EXPORT_SYMBOL(arch_local_irq_disable);
+
+
+__asm__(
+        "       .macro  arch_local_irq_save result                      \n"
+        "       .set    push                                            \n"
+        "       .set    reorder                                         \n"
+        "       .set    noat                                            \n"
+#ifdef CONFIG_MIPS_MT_SMTC
+        "       mfc0    \\result, $2, 1                                 \n"
+        "       ori     $1, \\result, 0x400                             \n"
+        "       .set    noreorder                                       \n"
+        "       mtc0    $1, $2, 1                                       \n"
+        "       andi    \\result, \\result, 0x400                       \n"
+#elif defined(CONFIG_CPU_MIPSR2)
+        /* see irqflags.h for inline function */
+#else
+        "       mfc0    \\result, $12                                   \n"
+        "       ori     $1, \\result, 0x1f                              \n"
+        "       xori    $1, 0x1f                                        \n"
+        "       .set    noreorder                                       \n"
+        "       mtc0    $1, $12                                         \n"
+#endif
+        "       irq_disable_hazard                                      \n"
+        "       .set    pop                                             \n"
+        "       .endm                                                   \n");
+
+unsigned long arch_local_irq_save(void)
+{
+        unsigned long flags;
+        preempt_disable();
+        asm volatile("arch_local_irq_save\t%0"
+                     : "=r" (flags)
+                     : /* no inputs */
+                     : "memory");
+        preempt_enable();
+        return flags;
+}
+EXPORT_SYMBOL(arch_local_irq_save);
+
+
+__asm__(
+        "       .macro  arch_local_irq_restore flags                    \n"
+        "       .set    push                                            \n"
+        "       .set    noreorder                                       \n"
+        "       .set    noat                                            \n"
+#ifdef CONFIG_MIPS_MT_SMTC
+        "mfc0   $1, $2, 1                                               \n"
+        "andi   \\flags, 0x400                                          \n"
+        "ori    $1, 0x400                                               \n"
+        "xori   $1, 0x400                                               \n"
+        "or     \\flags, $1                                             \n"
+        "mtc0   \\flags, $2, 1                                          \n"
+#elif defined(CONFIG_CPU_MIPSR2) && defined(CONFIG_IRQ_CPU)
+        /* see irqflags.h for inline function */
+#elif defined(CONFIG_CPU_MIPSR2)
+        /* see irqflags.h for inline function */
+#else
+        "       mfc0    $1, $12                                         \n"
+        "       andi    \\flags, 1                                      \n"
+        "       ori     $1, 0x1f                                        \n"
+        "       xori    $1, 0x1f                                        \n"
+        "       or      \\flags, $1                                     \n"
+        "       mtc0    \\flags, $12                                    \n"
+#endif
+        "       irq_disable_hazard                                      \n"
+        "       .set    pop                                             \n"
+        "       .endm                                                   \n");
+
+void arch_local_irq_restore(unsigned long flags)
+{
+        unsigned long __tmp1;
+
+#ifdef CONFIG_MIPS_MT_SMTC
+        /*
+         * SMTC kernel needs to do a software replay of queued
+         * IPIs, at the cost of branch and call overhead on each
+         * local_irq_restore()
+         */
+        if (unlikely(!(flags & 0x0400)))
+                smtc_ipi_replay();
+#endif
+        preempt_disable();
+        __asm__ __volatile__(
+                "arch_local_irq_restore\t%0"
+                : "=r" (__tmp1)
+                : "0" (flags)
+                : "memory");
+        preempt_enable();
+}
+EXPORT_SYMBOL(arch_local_irq_restore);
+
+
+void __arch_local_irq_restore(unsigned long flags)
+{
+        unsigned long __tmp1;
+
+        preempt_disable();
+        __asm__ __volatile__(
+                "arch_local_irq_restore\t%0"
+                : "=r" (__tmp1)
+                : "0" (flags)
+                : "memory");
+        preempt_enable();
+}
+EXPORT_SYMBOL(__arch_local_irq_restore);
+
+#endif /* !defined(CONFIG_CPU_MIPSR2) || defined(CONFIG_MIPS_MT_SMTC) */
diff --git a/arch/mips/mti-malta/malta-platform.c b/arch/mips/mti-malta/malta-platform.c
index 80562b81f0f2..74732177851c 100644
--- a/arch/mips/mti-malta/malta-platform.c
+++ b/arch/mips/mti-malta/malta-platform.c
@@ -29,6 +29,7 @@
 #include <linux/mtd/partitions.h>
 #include <linux/mtd/physmap.h>
 #include <linux/platform_device.h>
+#include <asm/mips-boards/maltaint.h>
 #include <mtd/mtd-abi.h>
 
 #define SMC_PORT(base, int)                                             \
@@ -48,7 +49,7 @@ static struct plat_serial8250_port uart8250_data[] = {
         SMC_PORT(0x2F8, 3),
         {
                 .mapbase        = 0x1f000900,   /* The CBUS UART */
-                .irq            = MIPS_CPU_IRQ_BASE + 2,
+                .irq            = MIPS_CPU_IRQ_BASE + MIPSCPU_INT_MB2,
                 .uartclk        = 3686400,      /* Twice the usual clk! */
                 .iotype         = UPIO_MEM32,
                 .flags          = CBUS_UART_FLAGS,
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 5dba755a43e6..d385f396dfee 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -96,6 +96,7 @@ config S390
         select HAVE_MEMBLOCK_NODE_MAP
         select HAVE_CMPXCHG_LOCAL
         select HAVE_CMPXCHG_DOUBLE
+        select HAVE_ALIGNED_STRUCT_PAGE if SLUB
         select HAVE_VIRT_CPU_ACCOUNTING
         select VIRT_CPU_ACCOUNTING
         select ARCH_DISCARD_MEMBLOCK
diff --git a/arch/s390/include/asm/cio.h b/arch/s390/include/asm/cio.h
index 55bde6035216..ad2b924167d7 100644
--- a/arch/s390/include/asm/cio.h
+++ b/arch/s390/include/asm/cio.h
@@ -9,6 +9,8 @@
 
 #define LPM_ANYPATH 0xff
 #define __MAX_CSSID 0
+#define __MAX_SUBCHANNEL 65535
+#define __MAX_SSID 3
 
 #include <asm/scsw.h>
 
diff --git a/arch/s390/include/asm/compat.h b/arch/s390/include/asm/compat.h
index a34a9d612fc0..18cd6b592650 100644
--- a/arch/s390/include/asm/compat.h
+++ b/arch/s390/include/asm/compat.h
@@ -20,7 +20,7 @@
 #define PSW32_MASK_CC           0x00003000UL
 #define PSW32_MASK_PM           0x00000f00UL
 
-#define PSW32_MASK_USER         0x00003F00UL
+#define PSW32_MASK_USER         0x0000FF00UL
 
 #define PSW32_ADDR_AMODE        0x80000000UL
 #define PSW32_ADDR_INSN         0x7FFFFFFFUL
diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h
index dd647c919a66..2d3b7cb26005 100644
--- a/arch/s390/include/asm/pgtable.h
+++ b/arch/s390/include/asm/pgtable.h
@@ -506,12 +506,15 @@ static inline int pud_bad(pud_t pud)
 
 static inline int pmd_present(pmd_t pmd)
 {
-        return (pmd_val(pmd) & _SEGMENT_ENTRY_ORIGIN) != 0UL;
+        unsigned long mask = _SEGMENT_ENTRY_INV | _SEGMENT_ENTRY_RO;
+        return (pmd_val(pmd) & mask) == _HPAGE_TYPE_NONE ||
+               !(pmd_val(pmd) & _SEGMENT_ENTRY_INV);
 }
 
 static inline int pmd_none(pmd_t pmd)
 {
-        return (pmd_val(pmd) & _SEGMENT_ENTRY_INV) != 0UL;
+        return (pmd_val(pmd) & _SEGMENT_ENTRY_INV) &&
+               !(pmd_val(pmd) & _SEGMENT_ENTRY_RO);
 }
 
 static inline int pmd_large(pmd_t pmd)
@@ -1223,6 +1226,11 @@ static inline void __pmd_idte(unsigned long address, pmd_t *pmdp)
 }
 
 #ifdef CONFIG_TRANSPARENT_HUGEPAGE
+
+#define SEGMENT_NONE    __pgprot(_HPAGE_TYPE_NONE)
+#define SEGMENT_RO      __pgprot(_HPAGE_TYPE_RO)
+#define SEGMENT_RW      __pgprot(_HPAGE_TYPE_RW)
+
 #define __HAVE_ARCH_PGTABLE_DEPOSIT
 extern void pgtable_trans_huge_deposit(struct mm_struct *mm, pgtable_t pgtable);
 
@@ -1242,16 +1250,15 @@ static inline void set_pmd_at(struct mm_struct *mm, unsigned long addr,
 
 static inline unsigned long massage_pgprot_pmd(pgprot_t pgprot)
 {
-        unsigned long pgprot_pmd = 0;
-
-        if (pgprot_val(pgprot) & _PAGE_INVALID) {
-                if (pgprot_val(pgprot) & _PAGE_SWT)
-                        pgprot_pmd |= _HPAGE_TYPE_NONE;
-                pgprot_pmd |= _SEGMENT_ENTRY_INV;
-        }
-        if (pgprot_val(pgprot) & _PAGE_RO)
-                pgprot_pmd |= _SEGMENT_ENTRY_RO;
-        return pgprot_pmd;
+        /*
+         * pgprot is PAGE_NONE, PAGE_RO, or PAGE_RW (see __Pxxx / __Sxxx)
+         * Convert to segment table entry format.
+         */
+        if (pgprot_val(pgprot) == pgprot_val(PAGE_NONE))
+                return pgprot_val(SEGMENT_NONE);
+        if (pgprot_val(pgprot) == pgprot_val(PAGE_RO))
+                return pgprot_val(SEGMENT_RO);
+        return pgprot_val(SEGMENT_RW);
 }
 
 static inline pmd_t pmd_modify(pmd_t pmd, pgprot_t newprot)
@@ -1269,7 +1276,9 @@ static inline pmd_t pmd_mkhuge(pmd_t pmd)
 
 static inline pmd_t pmd_mkwrite(pmd_t pmd)
 {
-        pmd_val(pmd) &= ~_SEGMENT_ENTRY_RO;
+        /* Do not clobber _HPAGE_TYPE_NONE pages! */
+        if (!(pmd_val(pmd) & _SEGMENT_ENTRY_INV))
+                pmd_val(pmd) &= ~_SEGMENT_ENTRY_RO;
         return pmd;
 }
 
diff --git a/arch/s390/include/asm/topology.h b/arch/s390/include/asm/topology.h
index 9ca305383760..9935cbd6a46f 100644
--- a/arch/s390/include/asm/topology.h
+++ b/arch/s390/include/asm/topology.h
@@ -8,6 +8,9 @@ struct cpu;
 
 #ifdef CONFIG_SCHED_BOOK
 
+extern unsigned char cpu_socket_id[NR_CPUS];
+#define topology_physical_package_id(cpu) (cpu_socket_id[cpu])
+
 extern unsigned char cpu_core_id[NR_CPUS];
 extern cpumask_t cpu_core_map[NR_CPUS];
 
diff --git a/arch/s390/include/uapi/asm/ptrace.h b/arch/s390/include/uapi/asm/ptrace.h
index 705588a16d70..a5ca214b34fd 100644
--- a/arch/s390/include/uapi/asm/ptrace.h
+++ b/arch/s390/include/uapi/asm/ptrace.h
@@ -239,7 +239,7 @@ typedef struct
 #define PSW_MASK_EA             0x00000000UL
 #define PSW_MASK_BA             0x00000000UL
 
-#define PSW_MASK_USER           0x00003F00UL
+#define PSW_MASK_USER           0x0000FF00UL
 
 #define PSW_ADDR_AMODE          0x80000000UL
 #define PSW_ADDR_INSN           0x7FFFFFFFUL
@@ -269,7 +269,7 @@ typedef struct
 #define PSW_MASK_EA             0x0000000100000000UL
 #define PSW_MASK_BA             0x0000000080000000UL
 
-#define PSW_MASK_USER           0x00003F8180000000UL
+#define PSW_MASK_USER           0x0000FF8180000000UL
 
 #define PSW_ADDR_AMODE          0x0000000000000000UL
 #define PSW_ADDR_INSN           0xFFFFFFFFFFFFFFFFUL
diff --git a/arch/s390/kernel/compat_signal.c b/arch/s390/kernel/compat_signal.c
index a1e8a8694bb7..593fcc9253fc 100644
--- a/arch/s390/kernel/compat_signal.c
+++ b/arch/s390/kernel/compat_signal.c
@@ -309,6 +309,10 @@ static int restore_sigregs32(struct pt_regs *regs,_sigregs32 __user *sregs)
         regs->psw.mask = (regs->psw.mask & ~PSW_MASK_USER) |
                 (__u64)(regs32.psw.mask & PSW32_MASK_USER) << 32 |
                 (__u64)(regs32.psw.addr & PSW32_ADDR_AMODE);
+        /* Check for invalid user address space control. */
+        if ((regs->psw.mask & PSW_MASK_ASC) >= (psw_kernel_bits & PSW_MASK_ASC))
+                regs->psw.mask = (psw_user_bits & PSW_MASK_ASC) |
+                        (regs->psw.mask & ~PSW_MASK_ASC);
         regs->psw.addr = (__u64)(regs32.psw.addr & PSW32_ADDR_INSN);
         for (i = 0; i < NUM_GPRS; i++)
                 regs->gprs[i] = (__u64) regs32.gprs[i];
@@ -481,7 +485,10 @@ static int setup_frame32(int sig, struct k_sigaction *ka,
 
         /* Set up registers for signal handler */
         regs->gprs[15] = (__force __u64) frame;
-        regs->psw.mask |= PSW_MASK_BA;          /* force amode 31 */
+        /* Force 31 bit amode and default user address space control. */
+        regs->psw.mask = PSW_MASK_BA |
+                (psw_user_bits & PSW_MASK_ASC) |
+                (regs->psw.mask & ~PSW_MASK_ASC);
         regs->psw.addr = (__force __u64) ka->sa.sa_handler;
 
         regs->gprs[2] = map_signal(sig);
@@ -549,7 +556,10 @@ static int setup_rt_frame32(int sig, struct k_sigaction *ka, siginfo_t *info,
 
         /* Set up registers for signal handler */
         regs->gprs[15] = (__force __u64) frame;
-        regs->psw.mask |= PSW_MASK_BA;          /* force amode 31 */
+        /* Force 31 bit amode and default user address space control. */
+        regs->psw.mask = PSW_MASK_BA |
+                (psw_user_bits & PSW_MASK_ASC) |
+                (regs->psw.mask & ~PSW_MASK_ASC);
         regs->psw.addr = (__u64) ka->sa.sa_handler;
 
         regs->gprs[2] = map_signal(sig);
diff --git a/arch/s390/kernel/sclp.S b/arch/s390/kernel/sclp.S
index bf053898630d..b6506ee32a36 100644
--- a/arch/s390/kernel/sclp.S
+++ b/arch/s390/kernel/sclp.S
@@ -44,6 +44,12 @@ _sclp_wait_int:
 #endif
         mvc     .LoldpswS1-.LbaseS1(16,%r13),0(%r8)
         mvc     0(16,%r8),0(%r9)
+#ifdef CONFIG_64BIT
+        epsw    %r6,%r7                         # set current addressing mode
+        nill    %r6,0x1                         # in new psw (31 or 64 bit mode)
+        nilh    %r7,0x8000
+        stm     %r6,%r7,0(%r8)
+#endif
         lhi     %r6,0x0200                      # cr mask for ext int (cr0.54)
         ltr     %r2,%r2
         jz      .LsetctS1
@@ -87,7 +93,7 @@ _sclp_wait_int:
         .long   0x00080000, 0x80000000+.LwaitS1 # PSW to handle ext int
 #ifdef CONFIG_64BIT
 .LextpswS1_64:
-        .quad   0x0000000180000000, .LwaitS1    # PSW to handle ext int, 64 bit
+        .quad   0, .LwaitS1                     # PSW to handle ext int, 64 bit
 #endif
 .LwaitpswS1:
         .long   0x010a0000, 0x00000000+.LloopS1 # PSW to wait for ext int
diff --git a/arch/s390/kernel/signal.c b/arch/s390/kernel/signal.c
index c13a2a37ef00..d1259d875074 100644
--- a/arch/s390/kernel/signal.c
+++ b/arch/s390/kernel/signal.c
@@ -136,6 +136,10 @@ static int restore_sigregs(struct pt_regs *regs, _sigregs __user *sregs)
         /* Use regs->psw.mask instead of psw_user_bits to preserve PER bit. */
         regs->psw.mask = (regs->psw.mask & ~PSW_MASK_USER) |
                 (user_sregs.regs.psw.mask & PSW_MASK_USER);
+        /* Check for invalid user address space control. */
+        if ((regs->psw.mask & PSW_MASK_ASC) >= (psw_kernel_bits & PSW_MASK_ASC))
+                regs->psw.mask = (psw_user_bits & PSW_MASK_ASC) |
+                        (regs->psw.mask & ~PSW_MASK_ASC);
         /* Check for invalid amode */
         if (regs->psw.mask & PSW_MASK_EA)
                 regs->psw.mask |= PSW_MASK_BA;
@@ -273,7 +277,10 @@ static int setup_frame(int sig, struct k_sigaction *ka,
 
         /* Set up registers for signal handler */
         regs->gprs[15] = (unsigned long) frame;
-        regs->psw.mask |= PSW_MASK_EA | PSW_MASK_BA;    /* 64 bit amode */
+        /* Force default amode and default user address space control. */
+        regs->psw.mask = PSW_MASK_EA | PSW_MASK_BA |
+                (psw_user_bits & PSW_MASK_ASC) |
+                (regs->psw.mask & ~PSW_MASK_ASC);
         regs->psw.addr = (unsigned long) ka->sa.sa_handler | PSW_ADDR_AMODE;
 
         regs->gprs[2] = map_signal(sig);
@@ -346,7 +353,10 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
 
         /* Set up registers for signal handler */
         regs->gprs[15] = (unsigned long) frame;
-        regs->psw.mask |= PSW_MASK_EA | PSW_MASK_BA;    /* 64 bit amode */
+        /* Force default amode and default user address space control. */
+        regs->psw.mask = PSW_MASK_EA | PSW_MASK_BA |
+                (psw_user_bits & PSW_MASK_ASC) |
+                (regs->psw.mask & ~PSW_MASK_ASC);
         regs->psw.addr = (unsigned long) ka->sa.sa_handler | PSW_ADDR_AMODE;
 
         regs->gprs[2] = map_signal(sig);
diff --git a/arch/s390/kernel/topology.c b/arch/s390/kernel/topology.c
index 54d93f4b6818..dd55f7c20104 100644
--- a/arch/s390/kernel/topology.c
+++ b/arch/s390/kernel/topology.c
@@ -40,6 +40,7 @@ static DEFINE_SPINLOCK(topology_lock);
 static struct mask_info core_info;
 cpumask_t cpu_core_map[NR_CPUS];
 unsigned char cpu_core_id[NR_CPUS];
+unsigned char cpu_socket_id[NR_CPUS];
 
 static struct mask_info book_info;
 cpumask_t cpu_book_map[NR_CPUS];
@@ -83,11 +84,12 @@ static struct mask_info *add_cpus_to_mask(struct topology_cpu *tl_cpu,
                         cpumask_set_cpu(lcpu, &book->mask);
                         cpu_book_id[lcpu] = book->id;
                         cpumask_set_cpu(lcpu, &core->mask);
+                        cpu_core_id[lcpu] = rcpu;
                         if (one_core_per_cpu) {
-                                cpu_core_id[lcpu] = rcpu;
+                                cpu_socket_id[lcpu] = rcpu;
                                 core = core->next;
                         } else {
-                                cpu_core_id[lcpu] = core->id;
+                                cpu_socket_id[lcpu] = core->id;
                         }
                         smp_cpu_set_polarization(lcpu, tl_cpu->pp);
                 }
diff --git a/arch/s390/lib/uaccess_pt.c b/arch/s390/lib/uaccess_pt.c
index 2d37bb861faf..9017a63dda3d 100644
--- a/arch/s390/lib/uaccess_pt.c
+++ b/arch/s390/lib/uaccess_pt.c
@@ -39,7 +39,7 @@ static __always_inline unsigned long follow_table(struct mm_struct *mm,
         pmd = pmd_offset(pud, addr);
         if (pmd_none(*pmd))
                 return -0x10UL;
-        if (pmd_huge(*pmd)) {
+        if (pmd_large(*pmd)) {
                 if (write && (pmd_val(*pmd) & _SEGMENT_ENTRY_RO))
                         return -0x04UL;
                 return (pmd_val(*pmd) & HPAGE_MASK) + (addr & ~HPAGE_MASK);
diff --git a/arch/s390/mm/gup.c b/arch/s390/mm/gup.c
index 60acb93a4680..1f5315d1215c 100644
--- a/arch/s390/mm/gup.c
+++ b/arch/s390/mm/gup.c
@@ -126,7 +126,7 @@ static inline int gup_pmd_range(pud_t *pudp, pud_t pud, unsigned long addr,
                  */
                 if (pmd_none(pmd) || pmd_trans_splitting(pmd))
                         return 0;
-                if (unlikely(pmd_huge(pmd))) {
+                if (unlikely(pmd_large(pmd))) {
                         if (!gup_huge_pmd(pmdp, pmd, addr, next,
                                           write, pages, nr))
                                 return 0;
@@ -180,8 +180,7 @@ int __get_user_pages_fast(unsigned long start, int nr_pages, int write,
         addr = start;
         len = (unsigned long) nr_pages << PAGE_SHIFT;
         end = start + len;
-        if (unlikely(!access_ok(write ? VERIFY_WRITE : VERIFY_READ,
-                                        (void __user *)start, len)))
+        if ((end < start) || (end > TASK_SIZE))
                 return 0;
 
         local_irq_save(flags);
@@ -229,7 +228,7 @@ int get_user_pages_fast(unsigned long start, int nr_pages, int write,
         addr = start;
         len = (unsigned long) nr_pages << PAGE_SHIFT;
         end = start + len;
-        if (end < start)
+        if ((end < start) || (end > TASK_SIZE))
                 goto slow_irqon;
 
         /*
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index b6b442b0d793..9f2edb5c5551 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -20,6 +20,7 @@ config SPARC
         select HAVE_ARCH_TRACEHOOK
         select SYSCTL_EXCEPTION_TRACE
         select ARCH_WANT_OPTIONAL_GPIOLIB
+        select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
         select RTC_CLASS
         select RTC_DRV_M48T59
         select HAVE_IRQ_WORK
diff --git a/arch/sparc/crypto/Makefile b/arch/sparc/crypto/Makefile
index 6ae1ad5e502b..5d469d81761f 100644
--- a/arch/sparc/crypto/Makefile
+++ b/arch/sparc/crypto/Makefile
@@ -13,13 +13,13 @@ obj-$(CONFIG_CRYPTO_DES_SPARC64) += camellia-sparc64.o
 
 obj-$(CONFIG_CRYPTO_CRC32C_SPARC64) += crc32c-sparc64.o
 
-sha1-sparc64-y := sha1_asm.o sha1_glue.o crop_devid.o
-sha256-sparc64-y := sha256_asm.o sha256_glue.o crop_devid.o
-sha512-sparc64-y := sha512_asm.o sha512_glue.o crop_devid.o
-md5-sparc64-y := md5_asm.o md5_glue.o crop_devid.o
+sha1-sparc64-y := sha1_asm.o sha1_glue.o
+sha256-sparc64-y := sha256_asm.o sha256_glue.o
+sha512-sparc64-y := sha512_asm.o sha512_glue.o
+md5-sparc64-y := md5_asm.o md5_glue.o
 
-aes-sparc64-y := aes_asm.o aes_glue.o crop_devid.o
-des-sparc64-y := des_asm.o des_glue.o crop_devid.o
-camellia-sparc64-y := camellia_asm.o camellia_glue.o crop_devid.o
+aes-sparc64-y := aes_asm.o aes_glue.o
+des-sparc64-y := des_asm.o des_glue.o
+camellia-sparc64-y := camellia_asm.o camellia_glue.o
 
-crc32c-sparc64-y := crc32c_asm.o crc32c_glue.o crop_devid.o
+crc32c-sparc64-y := crc32c_asm.o crc32c_glue.o
diff --git a/arch/sparc/crypto/aes_glue.c b/arch/sparc/crypto/aes_glue.c
index 8f1c9980f637..3965d1d36dfa 100644
--- a/arch/sparc/crypto/aes_glue.c
+++ b/arch/sparc/crypto/aes_glue.c
@@ -475,3 +475,5 @@ MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("AES Secure Hash Algorithm, sparc64 aes opcode accelerated");
 
 MODULE_ALIAS("aes");
+
+#include "crop_devid.c"
diff --git a/arch/sparc/crypto/camellia_glue.c b/arch/sparc/crypto/camellia_glue.c
index 42905c084299..62c89af3fd3f 100644
--- a/arch/sparc/crypto/camellia_glue.c
+++ b/arch/sparc/crypto/camellia_glue.c
@@ -320,3 +320,5 @@ MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("Camellia Cipher Algorithm, sparc64 camellia opcode accelerated");
 
 MODULE_ALIAS("aes");
+
+#include "crop_devid.c"
diff --git a/arch/sparc/crypto/crc32c_glue.c b/arch/sparc/crypto/crc32c_glue.c
index 0bd89cea8d8e..5162fad912ce 100644
--- a/arch/sparc/crypto/crc32c_glue.c
+++ b/arch/sparc/crypto/crc32c_glue.c
@@ -177,3 +177,5 @@ MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("CRC32c (Castagnoli), sparc64 crc32c opcode accelerated");
 
 MODULE_ALIAS("crc32c");
+
+#include "crop_devid.c"
diff --git a/arch/sparc/crypto/des_glue.c b/arch/sparc/crypto/des_glue.c
index c4940c2d3073..41524cebcc49 100644
--- a/arch/sparc/crypto/des_glue.c
+++ b/arch/sparc/crypto/des_glue.c
@@ -527,3 +527,5 @@ MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("DES & Triple DES EDE Cipher Algorithms, sparc64 des opcode accelerated");
 
 MODULE_ALIAS("des");
+
+#include "crop_devid.c"
diff --git a/arch/sparc/crypto/md5_glue.c b/arch/sparc/crypto/md5_glue.c
index 603d723038ce..09a9ea1dfb69 100644
--- a/arch/sparc/crypto/md5_glue.c
+++ b/arch/sparc/crypto/md5_glue.c
@@ -186,3 +186,5 @@ MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("MD5 Secure Hash Algorithm, sparc64 md5 opcode accelerated");
 
 MODULE_ALIAS("md5");
+
+#include "crop_devid.c"
diff --git a/arch/sparc/crypto/sha1_glue.c b/arch/sparc/crypto/sha1_glue.c
index 2bbb20bee9f1..6cd5f29e1e0d 100644
--- a/arch/sparc/crypto/sha1_glue.c
+++ b/arch/sparc/crypto/sha1_glue.c
@@ -181,3 +181,5 @@ MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("SHA1 Secure Hash Algorithm, sparc64 sha1 opcode accelerated");
 
 MODULE_ALIAS("sha1");
+
+#include "crop_devid.c"
diff --git a/arch/sparc/crypto/sha256_glue.c b/arch/sparc/crypto/sha256_glue.c
index 591e656bd891..04f555ab2680 100644
--- a/arch/sparc/crypto/sha256_glue.c
+++ b/arch/sparc/crypto/sha256_glue.c
@@ -239,3 +239,5 @@ MODULE_DESCRIPTION("SHA-224 and SHA-256 Secure Hash Algorithm, sparc64 sha256 op
 
 MODULE_ALIAS("sha224");
 MODULE_ALIAS("sha256");
+
+#include "crop_devid.c"
diff --git a/arch/sparc/crypto/sha512_glue.c b/arch/sparc/crypto/sha512_glue.c
index 486f0a2b7001..f04d1994d19a 100644
--- a/arch/sparc/crypto/sha512_glue.c
+++ b/arch/sparc/crypto/sha512_glue.c
@@ -224,3 +224,5 @@ MODULE_DESCRIPTION("SHA-384 and SHA-512 Secure Hash Algorithm, sparc64 sha512 op
 
 MODULE_ALIAS("sha384");
 MODULE_ALIAS("sha512");
+
+#include "crop_devid.c"
diff --git a/arch/sparc/include/asm/atomic_64.h b/arch/sparc/include/asm/atomic_64.h
index ce35a1cf1a20..be56a244c9cf 100644
--- a/arch/sparc/include/asm/atomic_64.h
+++ b/arch/sparc/include/asm/atomic_64.h
@@ -1,7 +1,7 @@
 /* atomic.h: Thankfully the V9 is at least reasonable for this
  *           stuff.
  *
- * Copyright (C) 1996, 1997, 2000 David S. Miller (davem@redhat.com)
+ * Copyright (C) 1996, 1997, 2000, 2012 David S. Miller (davem@redhat.com)
  */
 
 #ifndef __ARCH_SPARC64_ATOMIC__
@@ -106,6 +106,8 @@ static inline long atomic64_add_unless(atomic64_t *v, long a, long u)
 
 #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0)
 
+extern long atomic64_dec_if_positive(atomic64_t *v);
+
 /* Atomic operations are already serializing */
 #define smp_mb__before_atomic_dec()     barrier()
 #define smp_mb__after_atomic_dec()      barrier()
diff --git a/arch/sparc/include/asm/backoff.h b/arch/sparc/include/asm/backoff.h
index db3af0d30fb1..4e02086b839c 100644
--- a/arch/sparc/include/asm/backoff.h
+++ b/arch/sparc/include/asm/backoff.h
@@ -1,6 +1,46 @@
 #ifndef _SPARC64_BACKOFF_H
 #define _SPARC64_BACKOFF_H
 
+/* The macros in this file implement an exponential backoff facility
+ * for atomic operations.
+ *
+ * When multiple threads compete on an atomic operation, it is
+ * possible for one thread to be continually denied a successful
+ * completion of the compare-and-swap instruction.  Heavily
+ * threaded cpu implementations like Niagara can compound this
+ * problem even further.
+ *
+ * When an atomic operation fails and needs to be retried, we spin a
+ * certain number of times.  At each subsequent failure of the same
+ * operation we double the spin count, realizing an exponential
+ * backoff.
+ *
+ * When we spin, we try to use an operation that will cause the
+ * current cpu strand to block, and therefore make the core fully
+ * available to any other other runnable strands.  There are two
+ * options, based upon cpu capabilities.
+ *
+ * On all cpus prior to SPARC-T4 we do three dummy reads of the
+ * condition code register.  Each read blocks the strand for something
+ * between 40 and 50 cpu cycles.
+ *
+ * For SPARC-T4 and later we have a special "pause" instruction
+ * available.  This is implemented using writes to register %asr27.
+ * The cpu will block the number of cycles written into the register,
+ * unless a disrupting trap happens first.  SPARC-T4 specifically
+ * implements pause with a granularity of 8 cycles.  Each strand has
+ * an internal pause counter which decrements every 8 cycles.  So the
+ * chip shifts the %asr27 value down by 3 bits, and writes the result
+ * into the pause counter.  If a value smaller than 8 is written, the
+ * chip blocks for 1 cycle.
+ *
+ * To achieve the same amount of backoff as the three %ccr reads give
+ * on earlier chips, we shift the backoff value up by 7 bits.  (Three
+ * %ccr reads block for about 128 cycles, 1 << 7 == 128) We write the
+ * whole amount we want to block into the pause register, rather than
+ * loop writing 128 each time.
+ */
+
 #define BACKOFF_LIMIT   (4 * 1024)
 
 #ifdef CONFIG_SMP
@@ -11,16 +51,25 @@
 #define BACKOFF_LABEL(spin_label, continue_label) \
         spin_label
 
-#define BACKOFF_SPIN(reg, tmp, label)   \
-        mov     reg, tmp; \
-88:     brnz,pt tmp, 88b; \
-         sub    tmp, 1, tmp; \
-        set     BACKOFF_LIMIT, tmp; \
-        cmp     reg, tmp; \
-        bg,pn   %xcc, label; \
-         nop; \
-        ba,pt   %xcc, label; \
-         sllx   reg, 1, reg;
+#define BACKOFF_SPIN(reg, tmp, label)           \
+        mov             reg, tmp;               \
+88:     rd              %ccr, %g0;              \
+        rd              %ccr, %g0;              \
+        rd              %ccr, %g0;              \
+        .section        .pause_3insn_patch,"ax";\
+        .word           88b;                    \
+        sllx            tmp, 7, tmp;            \
+        wr              tmp, 0, %asr27;         \
+        clr             tmp;                    \
+        .previous;                              \
+        brnz,pt         tmp, 88b;               \
+         sub            tmp, 1, tmp;            \
+        set             BACKOFF_LIMIT, tmp;     \
+        cmp             reg, tmp;               \
+        bg,pn           %xcc, label;            \
+         nop;                                   \
+        ba,pt           %xcc, label;            \
+         sllx           reg, 1, reg;
 
 #else
 
diff --git a/arch/sparc/include/asm/compat.h b/arch/sparc/include/asm/compat.h
index cef99fbc0a21..830502fe62b4 100644
--- a/arch/sparc/include/asm/compat.h
+++ b/arch/sparc/include/asm/compat.h
@@ -232,9 +232,10 @@ static inline void __user *arch_compat_alloc_user_space(long len)
         struct pt_regs *regs = current_thread_info()->kregs;
         unsigned long usp = regs->u_regs[UREG_I6];
 
-        if (!(test_thread_flag(TIF_32BIT)))
+        if (test_thread_64bit_stack(usp))
                 usp += STACK_BIAS;
-        else
+
+        if (test_thread_flag(TIF_32BIT))
                 usp &= 0xffffffffUL;
 
         usp -= len;
diff --git a/arch/sparc/include/asm/processor_64.h b/arch/sparc/include/asm/processor_64.h
index 4e5a483122a0..721e25f0e2ea 100644
--- a/arch/sparc/include/asm/processor_64.h
+++ b/arch/sparc/include/asm/processor_64.h
@@ -196,7 +196,22 @@ extern unsigned long get_wchan(struct task_struct *task);
 #define KSTK_EIP(tsk)  (task_pt_regs(tsk)->tpc)
 #define KSTK_ESP(tsk)  (task_pt_regs(tsk)->u_regs[UREG_FP])
 
-#define cpu_relax()     barrier()
+/* Please see the commentary in asm/backoff.h for a description of
+ * what these instructions are doing and how they have been choosen.
+ * To make a long story short, we are trying to yield the current cpu
+ * strand during busy loops.
+ */
+#define cpu_relax()     asm volatile("\n99:\n\t"                        \
+                                     "rd        %%ccr, %%g0\n\t"        \
+                                     "rd        %%ccr, %%g0\n\t"        \
+                                     "rd        %%ccr, %%g0\n\t"        \
+                                     ".section  .pause_3insn_patch,\"ax\"\n\t"\
+                                     ".word     99b\n\t"                \
+                                     "wr        %%g0, 128, %%asr27\n\t" \
+                                     "nop\n\t"                          \
+                                     "nop\n\t"                          \
+                                     ".previous"                        \
+                                     ::: "memory")
 
 /* Prefetch support.  This is tuned for UltraSPARC-III and later.
  * UltraSPARC-I will treat these as nops, and UltraSPARC-II has
diff --git a/arch/sparc/include/asm/prom.h b/arch/sparc/include/asm/prom.h
index c28765110706..f93003123bce 100644
--- a/arch/sparc/include/asm/prom.h
+++ b/arch/sparc/include/asm/prom.h
@@ -63,5 +63,10 @@ extern char *of_console_options;
 extern void irq_trans_init(struct device_node *dp);
 extern char *build_path_component(struct device_node *dp);
 
+/* SPARC has a local implementation */
+extern int of_address_to_resource(struct device_node *dev, int index,
+                                  struct resource *r);
+#define of_address_to_resource of_address_to_resource
+
 #endif /* __KERNEL__ */
 #endif /* _SPARC_PROM_H */
diff --git a/arch/sparc/include/asm/thread_info_64.h b/arch/sparc/include/asm/thread_info_64.h
index 4e2276631081..a3fe4dcc0aa6 100644
--- a/arch/sparc/include/asm/thread_info_64.h
+++ b/arch/sparc/include/asm/thread_info_64.h
@@ -259,6 +259,11 @@ static inline bool test_and_clear_restore_sigmask(void)
 
 #define tsk_is_polling(t) test_tsk_thread_flag(t, TIF_POLLING_NRFLAG)
 
+#define thread32_stack_is_64bit(__SP) (((__SP) & 0x1) != 0)
+#define test_thread_64bit_stack(__SP) \
+        ((test_thread_flag(TIF_32BIT) && !thread32_stack_is_64bit(__SP)) ? \
+         false : true)
+
 #endif  /* !__ASSEMBLY__ */
 
 #endif /* __KERNEL__ */
diff --git a/arch/sparc/include/asm/ttable.h b/arch/sparc/include/asm/ttable.h
index 48f2807d3265..71b5a67522ab 100644
--- a/arch/sparc/include/asm/ttable.h
+++ b/arch/sparc/include/asm/ttable.h
@@ -372,7 +372,9 @@ etrap_spill_fixup_64bit:				\
 
 /* Normal 32bit spill */
 #define SPILL_2_GENERIC(ASI)                            \
-        srl     %sp, 0, %sp;                            \
+        and     %sp, 1, %g3;                            \
+        brnz,pn %g3, (. - (128 + 4));                   \
+         srl    %sp, 0, %sp;                            \
         stwa    %l0, [%sp + %g0] ASI;                   \
         mov     0x04, %g3;                              \
         stwa    %l1, [%sp + %g3] ASI;                   \
@@ -398,14 +400,16 @@ etrap_spill_fixup_64bit:				\
         stwa    %i6, [%g1 + %g0] ASI;                   \
         stwa    %i7, [%g1 + %g3] ASI;                   \
         saved;                                          \
-        retry; nop; nop;                                \
+        retry;                                          \
         b,a,pt  %xcc, spill_fixup_dax;                  \
         b,a,pt  %xcc, spill_fixup_mna;                  \
         b,a,pt  %xcc, spill_fixup;
 
 #define SPILL_2_GENERIC_ETRAP           \
 etrap_user_spill_32bit:                 \
-        srl     %sp, 0, %sp;            \
+        and     %sp, 1, %g3;            \
+        brnz,pn %g3, etrap_user_spill_64bit;    \
+         srl    %sp, 0, %sp;            \
         stwa    %l0, [%sp + 0x00] %asi; \
         stwa    %l1, [%sp + 0x04] %asi; \
         stwa    %l2, [%sp + 0x08] %asi; \
@@ -427,7 +431,7 @@ etrap_user_spill_32bit:			\
         ba,pt   %xcc, etrap_save;       \
          wrpr   %g1, %cwp;              \
         nop; nop; nop; nop;             \
-        nop; nop; nop; nop;             \
+        nop; nop;                       \
         ba,a,pt %xcc, etrap_spill_fixup_32bit; \
         ba,a,pt %xcc, etrap_spill_fixup_32bit; \
         ba,a,pt %xcc, etrap_spill_fixup_32bit;
@@ -592,7 +596,9 @@ user_rtt_fill_64bit:					\
 
 /* Normal 32bit fill */
 #define FILL_2_GENERIC(ASI)                             \
-        srl     %sp, 0, %sp;                            \
+        and     %sp, 1, %g3;                            \
+        brnz,pn %g3, (. - (128 + 4));                   \
+         srl    %sp, 0, %sp;                            \
         lduwa   [%sp + %g0] ASI, %l0;                   \
         mov     0x04, %g2;                              \
         mov     0x08, %g3;                              \
@@ -616,14 +622,16 @@ user_rtt_fill_64bit:					\
         lduwa   [%g1 + %g3] ASI, %i6;                   \
         lduwa   [%g1 + %g5] ASI, %i7;                   \
         restored;                                       \
-        retry; nop; nop; nop; nop;                      \
+        retry; nop; nop;                                \
         b,a,pt  %xcc, fill_fixup_dax;                   \
         b,a,pt  %xcc, fill_fixup_mna;                   \
         b,a,pt  %xcc, fill_fixup;
 
 #define FILL_2_GENERIC_RTRAP                            \
 user_rtt_fill_32bit:                                    \
-        srl     %sp, 0, %sp;                            \
+        and     %sp, 1, %g3;                            \
+        brnz,pn %g3, user_rtt_fill_64bit;               \
+         srl    %sp, 0, %sp;                            \
         lduwa   [%sp + 0x00] %asi, %l0;                 \
         lduwa   [%sp + 0x04] %asi, %l1;                 \
         lduwa   [%sp + 0x08] %asi, %l2;                 \
@@ -643,7 +651,7 @@ user_rtt_fill_32bit:					\
         ba,pt   %xcc, user_rtt_pre_restore;             \
          restored;                                      \
         nop; nop; nop; nop; nop;                        \
-        nop; nop; nop; nop; nop;                        \
+        nop; nop; nop;                                  \
         ba,a,pt %xcc, user_rtt_fill_fixup;              \
         ba,a,pt %xcc, user_rtt_fill_fixup;              \
         ba,a,pt %xcc, user_rtt_fill_fixup;
diff --git a/arch/sparc/include/uapi/asm/unistd.h b/arch/sparc/include/uapi/asm/unistd.h
index 8974ef7ae920..cac719d1bc5c 100644
--- a/arch/sparc/include/uapi/asm/unistd.h
+++ b/arch/sparc/include/uapi/asm/unistd.h
@@ -405,8 +405,13 @@
 #define __NR_setns              337
 #define __NR_process_vm_readv   338
 #define __NR_process_vm_writev  339
+#define __NR_kern_features      340
+#define __NR_kcmp               341
 
-#define NR_syscalls             340
+#define NR_syscalls             342
+
+/* Bitmask values returned from kern_features system call.  */
+#define KERN_FEATURE_MIXED_MODE_STACK   0x00000001
 
 #ifdef __32bit_syscall_numbers__
 /* Sparc 32-bit only has the "setresuid32", "getresuid32" variants,
diff --git a/arch/sparc/kernel/entry.h b/arch/sparc/kernel/entry.h
index 0c218e4c0881..cc3c5cb47cda 100644
--- a/arch/sparc/kernel/entry.h
+++ b/arch/sparc/kernel/entry.h
@@ -59,6 +59,13 @@ struct popc_6insn_patch_entry {
 extern struct popc_6insn_patch_entry __popc_6insn_patch,
         __popc_6insn_patch_end;
 
+struct pause_patch_entry {
+        unsigned int    addr;
+        unsigned int    insns[3];
+};
+extern struct pause_patch_entry __pause_3insn_patch,
+        __pause_3insn_patch_end;
+
 extern void __init per_cpu_patch(void);
 extern void sun4v_patch_1insn_range(struct sun4v_1insn_patch_entry *,
                                     struct sun4v_1insn_patch_entry *);
diff --git a/arch/sparc/kernel/leon_kernel.c b/arch/sparc/kernel/leon_kernel.c
index f8b6eee40bde..87f60ee65433 100644
--- a/arch/sparc/kernel/leon_kernel.c
+++ b/arch/sparc/kernel/leon_kernel.c
@@ -56,11 +56,13 @@ static inline unsigned int leon_eirq_get(int cpu)
 static void leon_handle_ext_irq(unsigned int irq, struct irq_desc *desc)
 {
         unsigned int eirq;
+        struct irq_bucket *p;
         int cpu = sparc_leon3_cpuid();
 
         eirq = leon_eirq_get(cpu);
-        if ((eirq & 0x10) && irq_map[eirq]->irq) /* bit4 tells if IRQ happened */
-                generic_handle_irq(irq_map[eirq]->irq);
+        p = irq_map[eirq];
+        if ((eirq & 0x10) && p && p->irq) /* bit4 tells if IRQ happened */
+                generic_handle_irq(p->irq);
 }
 
 /* The extended IRQ controller has been found, this function registers it */
diff --git a/arch/sparc/kernel/perf_event.c b/arch/sparc/kernel/perf_event.c
index 885a8af74064..b5c38faa4ead 100644
--- a/arch/sparc/kernel/perf_event.c
+++ b/arch/sparc/kernel/perf_event.c
@@ -1762,15 +1762,25 @@ static void perf_callchain_user_32(struct perf_callchain_entry *entry,
 
         ufp = regs->u_regs[UREG_I6] & 0xffffffffUL;
         do {
-                struct sparc_stackf32 *usf, sf;
                 unsigned long pc;
 
-                usf = (struct sparc_stackf32 *) ufp;
-                if (__copy_from_user_inatomic(&sf, usf, sizeof(sf)))
-                        break;
+                if (thread32_stack_is_64bit(ufp)) {
+                        struct sparc_stackf *usf, sf;
 
-                pc = sf.callers_pc;
-                ufp = (unsigned long)sf.fp;
+                        ufp += STACK_BIAS;
+                        usf = (struct sparc_stackf *) ufp;
+                        if (__copy_from_user_inatomic(&sf, usf, sizeof(sf)))
+                                break;
+                        pc = sf.callers_pc & 0xffffffff;
+                        ufp = ((unsigned long) sf.fp) & 0xffffffff;
+                } else {
+                        struct sparc_stackf32 *usf, sf;
+                        usf = (struct sparc_stackf32 *) ufp;
+                        if (__copy_from_user_inatomic(&sf, usf, sizeof(sf)))
+                                break;
+                        pc = sf.callers_pc;
+                        ufp = (unsigned long)sf.fp;
+                }
                 perf_callchain_store(entry, pc);
         } while (entry->nr < PERF_MAX_STACK_DEPTH);
 }
diff --git a/arch/sparc/kernel/process_64.c b/arch/sparc/kernel/process_64.c
index d778248ef3f8..c6e0c2910043 100644
--- a/arch/sparc/kernel/process_64.c
+++ b/arch/sparc/kernel/process_64.c
@@ -452,13 +452,16 @@ void flush_thread(void)
 /* It's a bit more tricky when 64-bit tasks are involved... */
 static unsigned long clone_stackframe(unsigned long csp, unsigned long psp)
 {
+        bool stack_64bit = test_thread_64bit_stack(psp);
         unsigned long fp, distance, rval;
 
-        if (!(test_thread_flag(TIF_32BIT))) {
+        if (stack_64bit) {
                 csp += STACK_BIAS;
                 psp += STACK_BIAS;
                 __get_user(fp, &(((struct reg_window __user *)psp)->ins[6]));
                 fp += STACK_BIAS;
+                if (test_thread_flag(TIF_32BIT))
+                        fp &= 0xffffffff;
         } else
                 __get_user(fp, &(((struct reg_window32 __user *)psp)->ins[6]));
 
@@ -472,7 +475,7 @@ static unsigned long clone_stackframe(unsigned long csp, unsigned long psp)
         rval = (csp - distance);
         if (copy_in_user((void __user *) rval, (void __user *) psp, distance))
                 rval = 0;
-        else if (test_thread_flag(TIF_32BIT)) {
+        else if (!stack_64bit) {
                 if (put_user(((u32)csp),
                              &(((struct reg_window32 __user *)rval)->ins[6])))
                         rval = 0;
@@ -507,18 +510,18 @@ void synchronize_user_stack(void)
 
         flush_user_windows();
         if ((window = get_thread_wsaved()) != 0) {
-                int winsize = sizeof(struct reg_window);
-                int bias = 0;
-
-                if (test_thread_flag(TIF_32BIT))
-                        winsize = sizeof(struct reg_window32);
-                else
-                        bias = STACK_BIAS;
-
                 window -= 1;
                 do {
-                        unsigned long sp = (t->rwbuf_stkptrs[window] + bias);
                         struct reg_window *rwin = &t->reg_window[window];
+                        int winsize = sizeof(struct reg_window);
+                        unsigned long sp;
+
+                        sp = t->rwbuf_stkptrs[window];
+
+                        if (test_thread_64bit_stack(sp))
+                                sp += STACK_BIAS;
+                        else
+                                winsize = sizeof(struct reg_window32);
 
                         if (!copy_to_user((char __user *)sp, rwin, winsize)) {
                                 shift_window_buffer(window, get_thread_wsaved() - 1, t);
@@ -544,13 +547,6 @@ void fault_in_user_windows(void)
 {
         struct thread_info *t = current_thread_info();
         unsigned long window;
-        int winsize = sizeof(struct reg_window);
-        int bias = 0;
-
-        if (test_thread_flag(TIF_32BIT))
-                winsize = sizeof(struct reg_window32);
-        else
-                bias = STACK_BIAS;
 
         flush_user_windows();
         window = get_thread_wsaved();
@@ -558,8 +554,16 @@ void fault_in_user_windows(void)
         if (likely(window != 0)) {
                 window -= 1;
                 do {
-                        unsigned long sp = (t->rwbuf_stkptrs[window] + bias);
                         struct reg_window *rwin = &t->reg_window[window];
+                        int winsize = sizeof(struct reg_window);
+                        unsigned long sp;
+
+                        sp = t->rwbuf_stkptrs[window];
+
+                        if (test_thread_64bit_stack(sp))
+                                sp += STACK_BIAS;
+                        else
+                                winsize = sizeof(struct reg_window32);
 
                         if (unlikely(sp & 0x7UL))
                                 stack_unaligned(sp);
diff --git a/arch/sparc/kernel/ptrace_64.c b/arch/sparc/kernel/ptrace_64.c
index 484dabac7045..7ff45e4ba681 100644
--- a/arch/sparc/kernel/ptrace_64.c
+++ b/arch/sparc/kernel/ptrace_64.c
@@ -151,7 +151,7 @@ static int regwindow64_get(struct task_struct *target,
 {
         unsigned long rw_addr = regs->u_regs[UREG_I6];
 
-        if (test_tsk_thread_flag(current, TIF_32BIT)) {
+        if (!test_thread_64bit_stack(rw_addr)) {
                 struct reg_window32 win32;
                 int i;
 
@@ -176,7 +176,7 @@ static int regwindow64_set(struct task_struct *target,
 {
         unsigned long rw_addr = regs->u_regs[UREG_I6];
 
-        if (test_tsk_thread_flag(current, TIF_32BIT)) {
+        if (!test_thread_64bit_stack(rw_addr)) {
                 struct reg_window32 win32;
                 int i;
 
diff --git a/arch/sparc/kernel/setup_64.c b/arch/sparc/kernel/setup_64.c
index 0800e71d8a88..0eaf0059aaef 100644
--- a/arch/sparc/kernel/setup_64.c
+++ b/arch/sparc/kernel/setup_64.c
@@ -316,6 +316,25 @@ static void __init popc_patch(void)
         }
 }
 
+static void __init pause_patch(void)
+{
+        struct pause_patch_entry *p;
+
+        p = &__pause_3insn_patch;
+        while (p < &__pause_3insn_patch_end) {
+                unsigned long i, addr = p->addr;
+
+                for (i = 0; i < 3; i++) {
+                        *(unsigned int *) (addr +  (i * 4)) = p->insns[i];
+                        wmb();
+                        __asm__ __volatile__("flush     %0"
+                                             : : "r" (addr +  (i * 4)));
+                }
+
+                p++;
+        }
+}
+
 #ifdef CONFIG_SMP
 void __init boot_cpu_id_too_large(int cpu)
 {
@@ -528,6 +547,8 @@ static void __init init_sparc64_elf_hwcap(void)
 
         if (sparc64_elf_hwcap & AV_SPARC_POPC)
                 popc_patch();
+        if (sparc64_elf_hwcap & AV_SPARC_PAUSE)
+                pause_patch();
 }
 
 void __init setup_arch(char **cmdline_p)
diff --git a/arch/sparc/kernel/sys_sparc_64.c b/arch/sparc/kernel/sys_sparc_64.c
index 11c6c9603e71..878ef3d5fec5 100644
--- a/arch/sparc/kernel/sys_sparc_64.c
+++ b/arch/sparc/kernel/sys_sparc_64.c
@@ -751,3 +751,8 @@ int kernel_execve(const char *filename,
                       : "cc");
         return __res;
 }
+
+asmlinkage long sys_kern_features(void)
+{
+        return KERN_FEATURE_MIXED_MODE_STACK;
+}
diff --git a/arch/sparc/kernel/systbls_32.S b/arch/sparc/kernel/systbls_32.S
index 63402f9e9f51..5147f574f125 100644
--- a/arch/sparc/kernel/systbls_32.S
+++ b/arch/sparc/kernel/systbls_32.S
@@ -85,3 +85,4 @@ sys_call_table:
 /*325*/ .long sys_pwritev, sys_rt_tgsigqueueinfo, sys_perf_event_open, sys_recvmmsg, sys_fanotify_init
 /*330*/ .long sys_fanotify_mark, sys_prlimit64, sys_name_to_handle_at, sys_open_by_handle_at, sys_clock_adjtime
 /*335*/ .long sys_syncfs, sys_sendmmsg, sys_setns, sys_process_vm_readv, sys_process_vm_writev
+/*340*/ .long sys_ni_syscall, sys_kcmp
diff --git a/arch/sparc/kernel/systbls_64.S b/arch/sparc/kernel/systbls_64.S
index 3a58e0d66f51..1c9af9fa38e9 100644
--- a/arch/sparc/kernel/systbls_64.S
+++ b/arch/sparc/kernel/systbls_64.S
@@ -86,6 +86,7 @@ sys_call_table32:
         .word compat_sys_pwritev, compat_sys_rt_tgsigqueueinfo, sys_perf_event_open, compat_sys_recvmmsg, sys_fanotify_init
 /*330*/ .word sys32_fanotify_mark, sys_prlimit64, sys_name_to_handle_at, compat_sys_open_by_handle_at, compat_sys_clock_adjtime
         .word sys_syncfs, compat_sys_sendmmsg, sys_setns, compat_sys_process_vm_readv, compat_sys_process_vm_writev
+/*340*/ .word sys_kern_features, sys_kcmp
 
 #endif /* CONFIG_COMPAT */
 
@@ -163,3 +164,4 @@ sys_call_table:
         .word sys_pwritev, sys_rt_tgsigqueueinfo, sys_perf_event_open, sys_recvmmsg, sys_fanotify_init
 /*330*/ .word sys_fanotify_mark, sys_prlimit64, sys_name_to_handle_at, sys_open_by_handle_at, sys_clock_adjtime
         .word sys_syncfs, sys_sendmmsg, sys_setns, sys_process_vm_readv, sys_process_vm_writev
+/*340*/ .word sys_kern_features, sys_kcmp
diff --git a/arch/sparc/kernel/unaligned_64.c b/arch/sparc/kernel/unaligned_64.c
index f81d038f7340..8201c25e7669 100644
--- a/arch/sparc/kernel/unaligned_64.c
+++ b/arch/sparc/kernel/unaligned_64.c
@@ -113,21 +113,24 @@ static inline long sign_extend_imm13(long imm)
 
 static unsigned long fetch_reg(unsigned int reg, struct pt_regs *regs)
 {
-        unsigned long value;
+        unsigned long value, fp;
         
         if (reg < 16)
                 return (!reg ? 0 : regs->u_regs[reg]);
+
+        fp = regs->u_regs[UREG_FP];
+
         if (regs->tstate & TSTATE_PRIV) {
                 struct reg_window *win;
-                win = (struct reg_window *)(regs->u_regs[UREG_FP] + STACK_BIAS);
+                win = (struct reg_window *)(fp + STACK_BIAS);
                 value = win->locals[reg - 16];
-        } else if (test_thread_flag(TIF_32BIT)) {
+        } else if (!test_thread_64bit_stack(fp)) {
                 struct reg_window32 __user *win32;
-                win32 = (struct reg_window32 __user *)((unsigned long)((u32)regs->u_regs[UREG_FP]));
+                win32 = (struct reg_window32 __user *)((unsigned long)((u32)fp));
                 get_user(value, &win32->locals[reg - 16]);
         } else {
                 struct reg_window __user *win;
-                win = (struct reg_window __user *)(regs->u_regs[UREG_FP] + STACK_BIAS);
+                win = (struct reg_window __user *)(fp + STACK_BIAS);
                 get_user(value, &win->locals[reg - 16]);
         }
         return value;
@@ -135,19 +138,24 @@ static unsigned long fetch_reg(unsigned int reg, struct pt_regs *regs)
 
 static unsigned long *fetch_reg_addr(unsigned int reg, struct pt_regs *regs)
 {
+        unsigned long fp;
+
         if (reg < 16)
                 return &regs->u_regs[reg];
+
+        fp = regs->u_regs[UREG_FP];
+
         if (regs->tstate & TSTATE_PRIV) {
                 struct reg_window *win;
-                win = (struct reg_window *)(regs->u_regs[UREG_FP] + STACK_BIAS);
+                win = (struct reg_window *)(fp + STACK_BIAS);
                 return &win->locals[reg - 16];
-        } else if (test_thread_flag(TIF_32BIT)) {
+        } else if (!test_thread_64bit_stack(fp)) {
                 struct reg_window32 *win32;
-                win32 = (struct reg_window32 *)((unsigned long)((u32)regs->u_regs[UREG_FP]));
+                win32 = (struct reg_window32 *)((unsigned long)((u32)fp));
                 return (unsigned long *)&win32->locals[reg - 16];
         } else {
                 struct reg_window *win;
-                win = (struct reg_window *)(regs->u_regs[UREG_FP] + STACK_BIAS);
+                win = (struct reg_window *)(fp + STACK_BIAS);
                 return &win->locals[reg - 16];
         }
 }
@@ -392,13 +400,15 @@ int handle_popc(u32 insn, struct pt_regs *regs)
                 if (rd)
                         regs->u_regs[rd] = ret;
         } else {
-                if (test_thread_flag(TIF_32BIT)) {
+                unsigned long fp = regs->u_regs[UREG_FP];
+
+                if (!test_thread_64bit_stack(fp)) {
                         struct reg_window32 __user *win32;
-                        win32 = (struct reg_window32 __user *)((unsigned long)((u32)regs->u_regs[UREG_FP]));
+                        win32 = (struct reg_window32 __user *)((unsigned long)((u32)fp));
                         put_user(ret, &win32->locals[rd - 16]);
                 } else {
                         struct reg_window __user *win;
-                        win = (struct reg_window __user *)(regs->u_regs[UREG_FP] + STACK_BIAS);
+                        win = (struct reg_window __user *)(fp + STACK_BIAS);
                         put_user(ret, &win->locals[rd - 16]);
                 }
         }
@@ -554,7 +564,7 @@ void handle_ld_nf(u32 insn, struct pt_regs *regs)
                 reg[0] = 0;
                 if ((insn & 0x780000) == 0x180000)
                         reg[1] = 0;
-        } else if (test_thread_flag(TIF_32BIT)) {
+        } else if (!test_thread_64bit_stack(regs->u_regs[UREG_FP])) {
                 put_user(0, (int __user *) reg);
                 if ((insn & 0x780000) == 0x180000)
                         put_user(0, ((int __user *) reg) + 1);
diff --git a/arch/sparc/kernel/visemul.c b/arch/sparc/kernel/visemul.c
index 08e074b7eb6a..c096c624ac4d 100644
--- a/arch/sparc/kernel/visemul.c
+++ b/arch/sparc/kernel/visemul.c
@@ -149,21 +149,24 @@ static inline void maybe_flush_windows(unsigned int rs1, unsigned int rs2,
 
 static unsigned long fetch_reg(unsigned int reg, struct pt_regs *regs)
 {
-        unsigned long value;
+        unsigned long value, fp;
         
         if (reg < 16)
                 return (!reg ? 0 : regs->u_regs[reg]);
+
+        fp = regs->u_regs[UREG_FP];
+
         if (regs->tstate & TSTATE_PRIV) {
                 struct reg_window *win;
-                win = (struct reg_window *)(regs->u_regs[UREG_FP] + STACK_BIAS);
+                win = (struct reg_window *)(fp + STACK_BIAS);
                 value = win->locals[reg - 16];
-        } else if (test_thread_flag(TIF_32BIT)) {
+        } else if (!test_thread_64bit_stack(fp)) {
                 struct reg_window32 __user *win32;
-                win32 = (struct reg_window32 __user *)((unsigned long)((u32)regs->u_regs[UREG_FP]));
+                win32 = (struct reg_window32 __user *)((unsigned long)((u32)fp));
                 get_user(value, &win32->locals[reg - 16]);
         } else {
                 struct reg_window __user *win;
-                win = (struct reg_window __user *)(regs->u_regs[UREG_FP] + STACK_BIAS);
+                win = (struct reg_window __user *)(fp + STACK_BIAS);
                 get_user(value, &win->locals[reg - 16]);
         }
         return value;
@@ -172,16 +175,18 @@ static unsigned long fetch_reg(unsigned int reg, struct pt_regs *regs)
 static inline unsigned long __user *__fetch_reg_addr_user(unsigned int reg,
                                                           struct pt_regs *regs)
 {
+        unsigned long fp = regs->u_regs[UREG_FP];
+
         BUG_ON(reg < 16);
         BUG_ON(regs->tstate & TSTATE_PRIV);
 
-        if (test_thread_flag(TIF_32BIT)) {
+        if (!test_thread_64bit_stack(fp)) {
                 struct reg_window32 __user *win32;
-                win32 = (struct reg_window32 __user *)((unsigned long)((u32)regs->u_regs[UREG_FP]));
+                win32 = (struct reg_window32 __user *)((unsigned long)((u32)fp));
                 return (unsigned long __user *)&win32->locals[reg - 16];
         } else {
                 struct reg_window __user *win;
-                win = (struct reg_window __user *)(regs->u_regs[UREG_FP] + STACK_BIAS);
+                win = (struct reg_window __user *)(fp + STACK_BIAS);
                 return &win->locals[reg - 16];
         }
 }
@@ -204,7 +209,7 @@ static void store_reg(struct pt_regs *regs, unsigned long val, unsigned long rd)
         } else {
                 unsigned long __user *rd_user = __fetch_reg_addr_user(rd, regs);
 
-                if (test_thread_flag(TIF_32BIT))
+                if (!test_thread_64bit_stack(regs->u_regs[UREG_FP]))
                         __put_user((u32)val, (u32 __user *)rd_user);
                 else
                         __put_user(val, rd_user);
diff --git a/arch/sparc/kernel/vmlinux.lds.S b/arch/sparc/kernel/vmlinux.lds.S
index 89c2c29f154b..0bacceb19150 100644
--- a/arch/sparc/kernel/vmlinux.lds.S
+++ b/arch/sparc/kernel/vmlinux.lds.S
@@ -132,6 +132,11 @@ SECTIONS
                 *(.popc_6insn_patch)
                 __popc_6insn_patch_end = .;
         }
+        .pause_3insn_patch : {
+                __pause_3insn_patch = .;
+                *(.pause_3insn_patch)
+                __pause_3insn_patch_end = .;
+        }
         PERCPU_SECTION(SMP_CACHE_BYTES)
 
         . = ALIGN(PAGE_SIZE);
diff --git a/arch/sparc/kernel/winfixup.S b/arch/sparc/kernel/winfixup.S
index a6b0863c27df..1e67ce958369 100644
--- a/arch/sparc/kernel/winfixup.S
+++ b/arch/sparc/kernel/winfixup.S
@@ -43,6 +43,8 @@ spill_fixup_mna:
 spill_fixup_dax:
         TRAP_LOAD_THREAD_REG(%g6, %g1)
         ldx     [%g6 + TI_FLAGS], %g1
+        andcc   %sp, 0x1, %g0
+        movne   %icc, 0, %g1
         andcc   %g1, _TIF_32BIT, %g0
         ldub    [%g6 + TI_WSAVED], %g1
         sll     %g1, 3, %g3
diff --git a/arch/sparc/lib/atomic_64.S b/arch/sparc/lib/atomic_64.S
index 4d502da3de78..85c233d0a340 100644
--- a/arch/sparc/lib/atomic_64.S
+++ b/arch/sparc/lib/atomic_64.S
@@ -1,6 +1,6 @@
 /* atomic.S: These things are too big to do inline.
  *
- * Copyright (C) 1999, 2007 David S. Miller (davem@davemloft.net)
+ * Copyright (C) 1999, 2007 2012 David S. Miller (davem@davemloft.net)
  */
 
 #include <linux/linkage.h>
@@ -117,3 +117,17 @@ ENTRY(atomic64_sub_ret) /* %o0 = decrement, %o1 = atomic_ptr */
          sub    %g1, %o0, %o0
 2:      BACKOFF_SPIN(%o2, %o3, 1b)
 ENDPROC(atomic64_sub_ret)
+
+ENTRY(atomic64_dec_if_positive) /* %o0 = atomic_ptr */
+        BACKOFF_SETUP(%o2)
+1:      ldx     [%o0], %g1
+        brlez,pn %g1, 3f
+         sub    %g1, 1, %g7
+        casx    [%o0], %g1, %g7
+        cmp     %g1, %g7
+        bne,pn  %xcc, BACKOFF_LABEL(2f, 1b)
+         nop
+3:      retl
+         sub    %g1, 1, %o0
+2:      BACKOFF_SPIN(%o2, %o3, 1b)
+ENDPROC(atomic64_dec_if_positive)
diff --git a/arch/sparc/lib/ksyms.c b/arch/sparc/lib/ksyms.c
index ee31b884c61b..0c4e35e522fa 100644
--- a/arch/sparc/lib/ksyms.c
+++ b/arch/sparc/lib/ksyms.c
@@ -116,6 +116,7 @@ EXPORT_SYMBOL(atomic64_add);
 EXPORT_SYMBOL(atomic64_add_ret);
 EXPORT_SYMBOL(atomic64_sub);
 EXPORT_SYMBOL(atomic64_sub_ret);
+EXPORT_SYMBOL(atomic64_dec_if_positive);
 
 /* Atomic bit operations. */
 EXPORT_SYMBOL(test_and_set_bit);
diff --git a/arch/sparc/math-emu/math_64.c b/arch/sparc/math-emu/math_64.c
index 1704068da928..034aadbff036 100644
--- a/arch/sparc/math-emu/math_64.c
+++ b/arch/sparc/math-emu/math_64.c
@@ -320,7 +320,7 @@ int do_mathemu(struct pt_regs *regs, struct fpustate *f, bool illegal_insn_trap)
                                         XR = 0;
                                 else if (freg < 16)
                                         XR = regs->u_regs[freg];
-                                else if (test_thread_flag(TIF_32BIT)) {
+                                else if (!test_thread_64bit_stack(regs->u_regs[UREG_FP])) {
                                         struct reg_window32 __user *win32;
                                         flushw_user ();
                                         win32 = (struct reg_window32 __user *)((unsigned long)((u32)regs->u_regs[UREG_FP]));
diff --git a/arch/unicore32/Kconfig b/arch/unicore32/Kconfig
index e5c5473e69ce..c4fbb21e802b 100644
--- a/arch/unicore32/Kconfig
+++ b/arch/unicore32/Kconfig
@@ -16,6 +16,8 @@ config UNICORE32
         select ARCH_WANT_FRAME_POINTERS
         select GENERIC_IOMAP
         select MODULES_USE_ELF_REL
+        select GENERIC_KERNEL_THREAD
+        select GENERIC_KERNEL_EXECVE
         help
           UniCore-32 is 32-bit Instruction Set Architecture,
           including a series of low-power-consumption RISC chip
@@ -64,6 +66,9 @@ config GENERIC_CALIBRATE_DELAY
 config ARCH_MAY_HAVE_PC_FDC
         bool
 
+config ZONE_DMA
+        def_bool y
+
 config NEED_DMA_MAP_STATE
        def_bool y
 
@@ -216,7 +221,7 @@ config PUV3_GPIO
         bool
         depends on !ARCH_FPGA
         select GENERIC_GPIO
-        select GPIO_SYSFS if EXPERIMENTAL
+        select GPIO_SYSFS
         default y
 
 if PUV3_NB0916
diff --git a/arch/unicore32/include/asm/Kbuild b/arch/unicore32/include/asm/Kbuild
index c910c9857e11..601e92f18af6 100644
--- a/arch/unicore32/include/asm/Kbuild
+++ b/arch/unicore32/include/asm/Kbuild
@@ -1,4 +1,3 @@
-include include/asm-generic/Kbuild.asm
 
 generic-y += atomic.h
 generic-y += auxvec.h
diff --git a/arch/unicore32/include/asm/bug.h b/arch/unicore32/include/asm/bug.h
index b1ff8cadb086..93a56f3e2344 100644
--- a/arch/unicore32/include/asm/bug.h
+++ b/arch/unicore32/include/asm/bug.h
@@ -19,9 +19,4 @@ extern void die(const char *msg, struct pt_regs *regs, int err);
 extern void uc32_notify_die(const char *str, struct pt_regs *regs,
                 struct siginfo *info, unsigned long err, unsigned long trap);
 
-extern asmlinkage void __backtrace(void);
-extern asmlinkage void c_backtrace(unsigned long fp, int pmode);
-
-extern void __show_regs(struct pt_regs *);
-
 #endif /* __UNICORE_BUG_H__ */
diff --git a/arch/unicore32/include/asm/cmpxchg.h b/arch/unicore32/include/asm/cmpxchg.h
index df4d5acfd19f..8e797ad4fa24 100644
--- a/arch/unicore32/include/asm/cmpxchg.h
+++ b/arch/unicore32/include/asm/cmpxchg.h
@@ -35,7 +35,7 @@ static inline unsigned long __xchg(unsigned long x, volatile void *ptr,
                         : "memory", "cc");
                 break;
         default:
-                ret = __xchg_bad_pointer();
+                __xchg_bad_pointer();
         }
 
         return ret;
diff --git a/arch/unicore32/include/asm/kvm_para.h b/arch/unicore32/include/asm/kvm_para.h
deleted file mode 100644
index 14fab8f0b957..000000000000
--- a/arch/unicore32/include/asm/kvm_para.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/kvm_para.h>
diff --git a/arch/unicore32/include/asm/processor.h b/arch/unicore32/include/asm/processor.h
index 14382cb09657..4eaa42167667 100644
--- a/arch/unicore32/include/asm/processor.h
+++ b/arch/unicore32/include/asm/processor.h
@@ -72,11 +72,6 @@ unsigned long get_wchan(struct task_struct *p);
 
 #define cpu_relax()                     barrier()
 
-/*
- * Create a new kernel thread
- */
-extern int kernel_thread(int (*fn)(void *), void *arg, unsigned long flags);
-
 #define task_pt_regs(p) \
         ((struct pt_regs *)(THREAD_START_SP + task_stack_page(p)) - 1)
 
diff --git a/arch/unicore32/include/asm/ptrace.h b/arch/unicore32/include/asm/ptrace.h
index b9caf9b0997b..726749dab52f 100644
--- a/arch/unicore32/include/asm/ptrace.h
+++ b/arch/unicore32/include/asm/ptrace.h
@@ -12,80 +12,10 @@
 #ifndef __UNICORE_PTRACE_H__
 #define __UNICORE_PTRACE_H__
 
-#define PTRACE_GET_THREAD_AREA  22
-
-/*
- * PSR bits
- */
-#define USER_MODE       0x00000010
-#define REAL_MODE       0x00000011
-#define INTR_MODE       0x00000012
-#define PRIV_MODE       0x00000013
-#define ABRT_MODE       0x00000017
-#define EXTN_MODE       0x0000001b
-#define SUSR_MODE       0x0000001f
-#define MODE_MASK       0x0000001f
-#define PSR_R_BIT       0x00000040
-#define PSR_I_BIT       0x00000080
-#define PSR_V_BIT       0x10000000
-#define PSR_C_BIT       0x20000000
-#define PSR_Z_BIT       0x40000000
-#define PSR_S_BIT       0x80000000
-
-/*
- * Groups of PSR bits
- */
-#define PSR_f           0xff000000      /* Flags                */
-#define PSR_c           0x000000ff      /* Control              */
+#include <uapi/asm/ptrace.h>
 
 #ifndef __ASSEMBLY__
 
-/*
- * This struct defines the way the registers are stored on the
- * stack during a system call.  Note that sizeof(struct pt_regs)
- * has to be a multiple of 8.
- */
-struct pt_regs {
-        unsigned long uregs[34];
-};
-
-#define UCreg_asr               uregs[32]
-#define UCreg_pc                uregs[31]
-#define UCreg_lr                uregs[30]
-#define UCreg_sp                uregs[29]
-#define UCreg_ip                uregs[28]
-#define UCreg_fp                uregs[27]
-#define UCreg_26                uregs[26]
-#define UCreg_25                uregs[25]
-#define UCreg_24                uregs[24]
-#define UCreg_23                uregs[23]
-#define UCreg_22                uregs[22]
-#define UCreg_21                uregs[21]
-#define UCreg_20                uregs[20]
-#define UCreg_19                uregs[19]
-#define UCreg_18                uregs[18]
-#define UCreg_17                uregs[17]
-#define UCreg_16                uregs[16]
-#define UCreg_15                uregs[15]
-#define UCreg_14                uregs[14]
-#define UCreg_13                uregs[13]
-#define UCreg_12                uregs[12]
-#define UCreg_11                uregs[11]
-#define UCreg_10                uregs[10]
-#define UCreg_09                uregs[9]
-#define UCreg_08                uregs[8]
-#define UCreg_07                uregs[7]
-#define UCreg_06                uregs[6]
-#define UCreg_05                uregs[5]
-#define UCreg_04                uregs[4]
-#define UCreg_03                uregs[3]
-#define UCreg_02                uregs[2]
-#define UCreg_01                uregs[1]
-#define UCreg_00                uregs[0]
-#define UCreg_ORIG_00           uregs[33]
-
-#ifdef __KERNEL__
-
 #define user_mode(regs) \
         (processor_mode(regs) == USER_MODE)
 
@@ -125,9 +55,5 @@ static inline int valid_user_regs(struct pt_regs *regs)
 
 #define instruction_pointer(regs)       ((regs)->UCreg_pc)
 
-#endif /* __KERNEL__ */
-
 #endif /* __ASSEMBLY__ */
-
 #endif
-
diff --git a/arch/unicore32/include/uapi/asm/Kbuild b/arch/unicore32/include/uapi/asm/Kbuild
index baebb3da1d44..0514d7ad6855 100644
--- a/arch/unicore32/include/uapi/asm/Kbuild
+++ b/arch/unicore32/include/uapi/asm/Kbuild
@@ -1,3 +1,10 @@
 # UAPI Header export list
 include include/uapi/asm-generic/Kbuild.asm
 
+header-y += byteorder.h
+header-y += kvm_para.h
+header-y += ptrace.h
+header-y += sigcontext.h
+header-y += unistd.h
+
+generic-y += kvm_para.h
diff --git a/arch/unicore32/include/asm/byteorder.h b/arch/unicore32/include/uapi/asm/byteorder.h
index ebe1b3fef3e3..ebe1b3fef3e3 100644
--- a/arch/unicore32/include/asm/byteorder.h
+++ b/arch/unicore32/include/uapi/asm/byteorder.h
diff --git a/arch/unicore32/include/uapi/asm/ptrace.h b/arch/unicore32/include/uapi/asm/ptrace.h
new file mode 100644
index 000000000000..187aa2e98a53
--- /dev/null
+++ b/arch/unicore32/include/uapi/asm/ptrace.h
@@ -0,0 +1,90 @@
+/*
+ * linux/arch/unicore32/include/asm/ptrace.h
+ *
+ * Code specific to PKUnity SoC and UniCore ISA
+ *
+ * Copyright (C) 2001-2010 GUAN Xue-tao
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef _UAPI__UNICORE_PTRACE_H__
+#define _UAPI__UNICORE_PTRACE_H__
+
+#define PTRACE_GET_THREAD_AREA  22
+
+/*
+ * PSR bits
+ */
+#define USER_MODE       0x00000010
+#define REAL_MODE       0x00000011
+#define INTR_MODE       0x00000012
+#define PRIV_MODE       0x00000013
+#define ABRT_MODE       0x00000017
+#define EXTN_MODE       0x0000001b
+#define SUSR_MODE       0x0000001f
+#define MODE_MASK       0x0000001f
+#define PSR_R_BIT       0x00000040
+#define PSR_I_BIT       0x00000080
+#define PSR_V_BIT       0x10000000
+#define PSR_C_BIT       0x20000000
+#define PSR_Z_BIT       0x40000000
+#define PSR_S_BIT       0x80000000
+
+/*
+ * Groups of PSR bits
+ */
+#define PSR_f           0xff000000      /* Flags                */
+#define PSR_c           0x000000ff      /* Control              */
+
+#ifndef __ASSEMBLY__
+
+/*
+ * This struct defines the way the registers are stored on the
+ * stack during a system call.  Note that sizeof(struct pt_regs)
+ * has to be a multiple of 8.
+ */
+struct pt_regs {
+        unsigned long uregs[34];
+};
+
+#define UCreg_asr               uregs[32]
+#define UCreg_pc                uregs[31]
+#define UCreg_lr                uregs[30]
+#define UCreg_sp                uregs[29]
+#define UCreg_ip                uregs[28]
+#define UCreg_fp                uregs[27]
+#define UCreg_26                uregs[26]
+#define UCreg_25                uregs[25]
+#define UCreg_24                uregs[24]
+#define UCreg_23                uregs[23]
+#define UCreg_22                uregs[22]
+#define UCreg_21                uregs[21]
+#define UCreg_20                uregs[20]
+#define UCreg_19                uregs[19]
+#define UCreg_18                uregs[18]
+#define UCreg_17                uregs[17]
+#define UCreg_16                uregs[16]
+#define UCreg_15                uregs[15]
+#define UCreg_14                uregs[14]
+#define UCreg_13                uregs[13]
+#define UCreg_12                uregs[12]
+#define UCreg_11                uregs[11]
+#define UCreg_10                uregs[10]
+#define UCreg_09                uregs[9]
+#define UCreg_08                uregs[8]
+#define UCreg_07                uregs[7]
+#define UCreg_06                uregs[6]
+#define UCreg_05                uregs[5]
+#define UCreg_04                uregs[4]
+#define UCreg_03                uregs[3]
+#define UCreg_02                uregs[2]
+#define UCreg_01                uregs[1]
+#define UCreg_00                uregs[0]
+#define UCreg_ORIG_00           uregs[33]
+
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* _UAPI__UNICORE_PTRACE_H__ */
diff --git a/arch/unicore32/include/asm/sigcontext.h b/arch/unicore32/include/uapi/asm/sigcontext.h
index 6a2d7671c052..6a2d7671c052 100644
--- a/arch/unicore32/include/asm/sigcontext.h
+++ b/arch/unicore32/include/uapi/asm/sigcontext.h
diff --git a/arch/unicore32/include/asm/unistd.h b/arch/unicore32/include/uapi/asm/unistd.h
index 2abcf61c615d..d18a3be89b38 100644
--- a/arch/unicore32/include/asm/unistd.h
+++ b/arch/unicore32/include/uapi/asm/unistd.h
@@ -12,3 +12,4 @@
 
 /* Use the standard ABI for syscalls. */
 #include <asm-generic/unistd.h>
+#define __ARCH_WANT_SYS_EXECVE
diff --git a/arch/unicore32/kernel/entry.S b/arch/unicore32/kernel/entry.S
index dcb87ab19ddd..7049350c790f 100644
--- a/arch/unicore32/kernel/entry.S
+++ b/arch/unicore32/kernel/entry.S
@@ -573,17 +573,16 @@ ENDPROC(ret_to_user)
  */
 ENTRY(ret_from_fork)
         b.l     schedule_tail
-        get_thread_info tsk
-        ldw     r1, [tsk+], #TI_FLAGS           @ check for syscall tracing
-        mov     why, #1
-        cand.a  r1, #_TIF_SYSCALL_TRACE         @ are we tracing syscalls?
-        beq     ret_slow_syscall
-        mov     r1, sp
-        mov     r0, #1                          @ trace exit [IP = 1]
-        b.l     syscall_trace
         b       ret_slow_syscall
 ENDPROC(ret_from_fork)
 
+ENTRY(ret_from_kernel_thread)
+        b.l     schedule_tail
+        mov     r0, r5
+        adr     lr, ret_slow_syscall
+        mov     pc, r4
+ENDPROC(ret_from_kernel_thread)
+
 /*=============================================================================
  * SWI handler
  *-----------------------------------------------------------------------------
@@ -669,11 +668,6 @@ __cr_alignment:
 #endif
         .ltorg
 
-ENTRY(sys_execve)
-                add     r3, sp, #S_OFF
-                b       __sys_execve
-ENDPROC(sys_execve)
-
 ENTRY(sys_clone)
                 add     ip, sp, #S_OFF
                 stw     ip, [sp+], #4
diff --git a/arch/unicore32/kernel/process.c b/arch/unicore32/kernel/process.c
index b008586dad75..a8fe265ce2c0 100644
--- a/arch/unicore32/kernel/process.c
+++ b/arch/unicore32/kernel/process.c
@@ -258,6 +258,7 @@ void release_thread(struct task_struct *dead_task)
 }
 
 asmlinkage void ret_from_fork(void) __asm__("ret_from_fork");
+asmlinkage void ret_from_kernel_thread(void) __asm__("ret_from_kernel_thread");
 
 int
 copy_thread(unsigned long clone_flags, unsigned long stack_start,
@@ -266,17 +267,22 @@ copy_thread(unsigned long clone_flags, unsigned long stack_start,
         struct thread_info *thread = task_thread_info(p);
         struct pt_regs *childregs = task_pt_regs(p);
 
-        *childregs = *regs;
-        childregs->UCreg_00 = 0;
-        childregs->UCreg_sp = stack_start;
-
         memset(&thread->cpu_context, 0, sizeof(struct cpu_context_save));
         thread->cpu_context.sp = (unsigned long)childregs;
-        thread->cpu_context.pc = (unsigned long)ret_from_fork;
-
-        if (clone_flags & CLONE_SETTLS)
-                childregs->UCreg_16 = regs->UCreg_03;
+        if (unlikely(!regs)) {
+                thread->cpu_context.pc = (unsigned long)ret_from_kernel_thread;
+                thread->cpu_context.r4 = stack_start;
+                thread->cpu_context.r5 = stk_sz;
+                memset(childregs, 0, sizeof(struct pt_regs));
+        } else {
+                thread->cpu_context.pc = (unsigned long)ret_from_fork;
+                *childregs = *regs;
+                childregs->UCreg_00 = 0;
+                childregs->UCreg_sp = stack_start;
 
+                if (clone_flags & CLONE_SETTLS)
+                        childregs->UCreg_16 = regs->UCreg_03;
+        }
         return 0;
 }
 
@@ -305,42 +311,6 @@ int dump_fpu(struct pt_regs *regs, elf_fpregset_t *fp)
 }
 EXPORT_SYMBOL(dump_fpu);
 
-/*
- * Shuffle the argument into the correct register before calling the
- * thread function.  r1 is the thread argument, r2 is the pointer to
- * the thread function, and r3 points to the exit function.
- */
-asm(".pushsection .text\n"
-"       .align\n"
-"       .type   kernel_thread_helper, #function\n"
-"kernel_thread_helper:\n"
-"       mov.a   asr, r7\n"
-"       mov     r0, r4\n"
-"       mov     lr, r6\n"
-"       mov     pc, r5\n"
-"       .size   kernel_thread_helper, . - kernel_thread_helper\n"
-"       .popsection");
-
-/*
- * Create a kernel thread.
- */
-pid_t kernel_thread(int (*fn)(void *), void *arg, unsigned long flags)
-{
-        struct pt_regs regs;
-
-        memset(&regs, 0, sizeof(regs));
-
-        regs.UCreg_04 = (unsigned long)arg;
-        regs.UCreg_05 = (unsigned long)fn;
-        regs.UCreg_06 = (unsigned long)do_exit;
-        regs.UCreg_07 = PRIV_MODE;
-        regs.UCreg_pc = (unsigned long)kernel_thread_helper;
-        regs.UCreg_asr = regs.UCreg_07 | PSR_I_BIT;
-
-        return do_fork(flags|CLONE_VM|CLONE_UNTRACED, 0, &regs, 0, NULL, NULL);
-}
-EXPORT_SYMBOL(kernel_thread);
-
 unsigned long get_wchan(struct task_struct *p)
 {
         struct stackframe frame;
diff --git a/arch/unicore32/kernel/setup.h b/arch/unicore32/kernel/setup.h
index f23955028a18..30f749da8f73 100644
--- a/arch/unicore32/kernel/setup.h
+++ b/arch/unicore32/kernel/setup.h
@@ -30,4 +30,10 @@ extern char __vectors_start[], __vectors_end[];
 extern void kernel_thread_helper(void);
 
 extern void __init early_signal_init(void);
+
+extern asmlinkage void __backtrace(void);
+extern asmlinkage void c_backtrace(unsigned long fp, int pmode);
+
+extern void __show_regs(struct pt_regs *);
+
 #endif
diff --git a/arch/unicore32/kernel/sys.c b/arch/unicore32/kernel/sys.c
index fabdee96110b..9680134b31f0 100644
--- a/arch/unicore32/kernel/sys.c
+++ b/arch/unicore32/kernel/sys.c
@@ -42,69 +42,6 @@ asmlinkage long __sys_clone(unsigned long clone_flags, unsigned long newsp,
                         parent_tid, child_tid);
 }
 
-/* sys_execve() executes a new program.
- * This is called indirectly via a small wrapper
- */
-asmlinkage long __sys_execve(const char __user *filename,
-                          const char __user *const __user *argv,
-                          const char __user *const __user *envp,
-                          struct pt_regs *regs)
-{
-        int error;
-        struct filename *fn;
-
-        fn = getname(filename);
-        error = PTR_ERR(fn);
-        if (IS_ERR(fn))
-                goto out;
-        error = do_execve(fn->name, argv, envp, regs);
-        putname(fn);
-out:
-        return error;
-}
-
-int kernel_execve(const char *filename,
-                  const char *const argv[],
-                  const char *const envp[])
-{
-        struct pt_regs regs;
-        int ret;
-
-        memset(&regs, 0, sizeof(struct pt_regs));
-        ret = do_execve(filename,
-                        (const char __user *const __user *)argv,
-                        (const char __user *const __user *)envp, &regs);
-        if (ret < 0)
-                goto out;
-
-        /*
-         * Save argc to the register structure for userspace.
-         */
-        regs.UCreg_00 = ret;
-
-        /*
-         * We were successful.  We won't be returning to our caller, but
-         * instead to user space by manipulating the kernel stack.
-         */
-        asm("add        r0, %0, %1\n\t"
-                "mov    r1, %2\n\t"
-                "mov    r2, %3\n\t"
-                "mov    r22, #0\n\t"    /* not a syscall */
-                "mov    r23, %0\n\t"    /* thread structure */
-                "b.l    memmove\n\t"    /* copy regs to top of stack */
-                "mov    sp, r0\n\t"     /* reposition stack pointer */
-                "b      ret_to_user"
-                :
-                : "r" (current_thread_info()),
-                  "Ir" (THREAD_START_SP - sizeof(regs)),
-                  "r" (&regs),
-                  "Ir" (sizeof(regs))
-                : "r0", "r1", "r2", "r3", "ip", "lr", "memory");
-
- out:
-        return ret;
-}
-
 /* Note: used by the compat code even in 64-bit Linux. */
 SYSCALL_DEFINE6(mmap2, unsigned long, addr, unsigned long, len,
                 unsigned long, prot, unsigned long, flags,
diff --git a/arch/unicore32/mm/fault.c b/arch/unicore32/mm/fault.c
index 2eeb9c04cab0..f9b5c10bccee 100644
--- a/arch/unicore32/mm/fault.c
+++ b/arch/unicore32/mm/fault.c
@@ -168,7 +168,7 @@ static inline bool access_error(unsigned int fsr, struct vm_area_struct *vma)
 }
 
 static int __do_pf(struct mm_struct *mm, unsigned long addr, unsigned int fsr,
-                struct task_struct *tsk)
+                unsigned int flags, struct task_struct *tsk)
 {
         struct vm_area_struct *vma;
         int fault;
@@ -194,14 +194,7 @@ good_area:
          * If for any reason at all we couldn't handle the fault, make
          * sure we exit gracefully rather than endlessly redo the fault.
          */
-        fault = handle_mm_fault(mm, vma, addr & PAGE_MASK,
-                            (!(fsr ^ 0x12)) ? FAULT_FLAG_WRITE : 0);
-        if (unlikely(fault & VM_FAULT_ERROR))
-                return fault;
-        if (fault & VM_FAULT_MAJOR)
-                tsk->maj_flt++;
-        else
-                tsk->min_flt++;
+        fault = handle_mm_fault(mm, vma, addr & PAGE_MASK, flags);
         return fault;
 
 check_stack:
@@ -216,6 +209,8 @@ static int do_pf(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
         struct task_struct *tsk;
         struct mm_struct *mm;
         int fault, sig, code;
+        unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE |
+                                 ((!(fsr ^ 0x12)) ? FAULT_FLAG_WRITE : 0);
 
         tsk = current;
         mm = tsk->mm;
@@ -236,6 +231,7 @@ static int do_pf(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
                 if (!user_mode(regs)
                     && !search_exception_tables(regs->UCreg_pc))
                         goto no_context;
+retry:
                 down_read(&mm->mmap_sem);
         } else {
                 /*
@@ -251,7 +247,28 @@ static int do_pf(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
 #endif
         }
 
-        fault = __do_pf(mm, addr, fsr, tsk);
+        fault = __do_pf(mm, addr, fsr, flags, tsk);
+
+        /* If we need to retry but a fatal signal is pending, handle the
+         * signal first. We do not need to release the mmap_sem because
+         * it would already be released in __lock_page_or_retry in
+         * mm/filemap.c. */
+        if ((fault & VM_FAULT_RETRY) && fatal_signal_pending(current))
+                return 0;
+
+        if (!(fault & VM_FAULT_ERROR) && (flags & FAULT_FLAG_ALLOW_RETRY)) {
+                if (fault & VM_FAULT_MAJOR)
+                        tsk->maj_flt++;
+                else
+                        tsk->min_flt++;
+                if (fault & VM_FAULT_RETRY) {
+                        /* Clear FAULT_FLAG_ALLOW_RETRY to avoid any risk
+                        * of starvation. */
+                        flags &= ~FAULT_FLAG_ALLOW_RETRY;
+                        goto retry;
+                }
+        }
+
         up_read(&mm->mmap_sem);
 
         /*
diff --git a/arch/x86/include/asm/xen/hypercall.h b/arch/x86/include/asm/xen/hypercall.h
index 59c226d120cd..c20d1ce62dc6 100644
--- a/arch/x86/include/asm/xen/hypercall.h
+++ b/arch/x86/include/asm/xen/hypercall.h
@@ -359,18 +359,14 @@ HYPERVISOR_update_va_mapping(unsigned long va, pte_t new_val,
                 return _hypercall4(int, update_va_mapping, va,
                                    new_val.pte, new_val.pte >> 32, flags);
 }
+extern int __must_check xen_event_channel_op_compat(int, void *);
 
 static inline int
 HYPERVISOR_event_channel_op(int cmd, void *arg)
 {
         int rc = _hypercall2(int, event_channel_op, cmd, arg);
-        if (unlikely(rc == -ENOSYS)) {
-                struct evtchn_op op;
-                op.cmd = cmd;
-                memcpy(&op.u, arg, sizeof(op.u));
-                rc = _hypercall1(int, event_channel_op_compat, &op);
-                memcpy(arg, &op.u, sizeof(op.u));
-        }
+        if (unlikely(rc == -ENOSYS))
+                rc = xen_event_channel_op_compat(cmd, arg);
         return rc;
 }
 
@@ -386,17 +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 *);
+
 static inline int
 HYPERVISOR_physdev_op(int cmd, void *arg)
 {
         int rc = _hypercall2(int, physdev_op, cmd, arg);
-        if (unlikely(rc == -ENOSYS)) {
-                struct physdev_op op;
-                op.cmd = cmd;
-                memcpy(&op.u, arg, sizeof(op.u));
-                rc = _hypercall1(int, physdev_op_compat, &op);
-                memcpy(arg, &op.u, sizeof(op.u));
-        }
+        if (unlikely(rc == -ENOSYS))
+                rc = HYPERVISOR_physdev_op_compat(cmd, arg);
         return rc;
 }
 
diff --git a/arch/x86/kvm/cpuid.h b/arch/x86/kvm/cpuid.h
index a10e46016851..58fc51488828 100644
--- a/arch/x86/kvm/cpuid.h
+++ b/arch/x86/kvm/cpuid.h
@@ -24,6 +24,9 @@ static inline bool guest_cpuid_has_xsave(struct kvm_vcpu *vcpu)
 {
         struct kvm_cpuid_entry2 *best;
 
+        if (!static_cpu_has(X86_FEATURE_XSAVE))
+                return 0;
+
         best = kvm_find_cpuid_entry(vcpu, 1, 0);
         return best && (best->ecx & bit(X86_FEATURE_XSAVE));
 }
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index ad6b1dd06f8b..f85815945fc6 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -6549,19 +6549,22 @@ static void vmx_cpuid_update(struct kvm_vcpu *vcpu)
                 }
         }
 
-        exec_control = vmcs_read32(SECONDARY_VM_EXEC_CONTROL);
         /* Exposing INVPCID only when PCID is exposed */
         best = kvm_find_cpuid_entry(vcpu, 0x7, 0);
         if (vmx_invpcid_supported() &&
             best && (best->ebx & bit(X86_FEATURE_INVPCID)) &&
             guest_cpuid_has_pcid(vcpu)) {
+                exec_control = vmcs_read32(SECONDARY_VM_EXEC_CONTROL);
                 exec_control |= SECONDARY_EXEC_ENABLE_INVPCID;
                 vmcs_write32(SECONDARY_VM_EXEC_CONTROL,
                              exec_control);
         } else {
-                exec_control &= ~SECONDARY_EXEC_ENABLE_INVPCID;
-                vmcs_write32(SECONDARY_VM_EXEC_CONTROL,
-                             exec_control);
+                if (cpu_has_secondary_exec_ctrls()) {
+                        exec_control = vmcs_read32(SECONDARY_VM_EXEC_CONTROL);
+                        exec_control &= ~SECONDARY_EXEC_ENABLE_INVPCID;
+                        vmcs_write32(SECONDARY_VM_EXEC_CONTROL,
+                                     exec_control);
+                }
                 if (best)
                         best->ebx &= ~bit(X86_FEATURE_INVPCID);
         }
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 224a7e78cb6c..4f7641756be2 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -5781,6 +5781,9 @@ int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu,
         int pending_vec, max_bits, idx;
         struct desc_ptr dt;
 
+        if (!guest_cpuid_has_xsave(vcpu) && (sregs->cr4 & X86_CR4_OSXSAVE))
+                return -EINVAL;
+
         dt.size = sregs->idt.limit;
         dt.address = sregs->idt.base;
         kvm_x86_ops->set_idt(vcpu, &dt);
diff --git a/crypto/cryptd.c b/crypto/cryptd.c
index 671d4d6d14df..7bdd61b867c8 100644
--- a/crypto/cryptd.c
+++ b/crypto/cryptd.c
@@ -137,13 +137,18 @@ static void cryptd_queue_worker(struct work_struct *work)
         struct crypto_async_request *req, *backlog;
 
         cpu_queue = container_of(work, struct cryptd_cpu_queue, work);
-        /* Only handle one request at a time to avoid hogging crypto
-         * workqueue. preempt_disable/enable is used to prevent
-         * being preempted by cryptd_enqueue_request() */
+        /*
+         * Only handle one request at a time to avoid hogging crypto workqueue.
+         * preempt_disable/enable is used to prevent being preempted by
+         * cryptd_enqueue_request(). local_bh_disable/enable is used to prevent
+         * cryptd_enqueue_request() being accessed from software interrupts.
+         */
+        local_bh_disable();
         preempt_disable();
         backlog = crypto_get_backlog(&cpu_queue->queue);
         req = crypto_dequeue_request(&cpu_queue->queue);
         preempt_enable();
+        local_bh_enable();
 
         if (!req)
                 return;
diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index f94d4c818fc7..0230cb6cbb3a 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -1345,12 +1345,15 @@ static int
 acpi_video_bus_get_devices(struct acpi_video_bus *video,
                            struct acpi_device *device)
 {
-        int status;
+        int status = 0;
         struct acpi_device *dev;
 
-        status = acpi_video_device_enumerate(video);
-        if (status)
-                return status;
+        /*
+         * There are systems where video module known to work fine regardless
+         * of broken _DOD and ignoring returned value here doesn't cause
+         * any issues later.
+         */
+        acpi_video_device_enumerate(video);
 
         list_for_each_entry(dev, &device->children, node) {
 
diff --git a/drivers/base/platform.c b/drivers/base/platform.c
index 8727e9c5eea4..72c776f2a1f5 100644
--- a/drivers/base/platform.c
+++ b/drivers/base/platform.c
@@ -83,9 +83,16 @@ EXPORT_SYMBOL_GPL(platform_get_resource);
  */
 int platform_get_irq(struct platform_device *dev, unsigned int num)
 {
+#ifdef CONFIG_SPARC
+        /* sparc does not have irqs represented as IORESOURCE_IRQ resources */
+        if (!dev || num >= dev->archdata.num_irqs)
+                return -ENXIO;
+        return dev->archdata.irqs[num];
+#else
         struct resource *r = platform_get_resource(dev, IORESOURCE_IRQ, num);
 
         return r ? r->start : -ENXIO;
+#endif
 }
 EXPORT_SYMBOL_GPL(platform_get_irq);
 
diff --git a/drivers/bluetooth/ath3k.c b/drivers/bluetooth/ath3k.c
index fc2de5528dcc..b00000e8aef6 100644
--- a/drivers/bluetooth/ath3k.c
+++ b/drivers/bluetooth/ath3k.c
@@ -67,6 +67,7 @@ static struct usb_device_id ath3k_table[] = {
         { USB_DEVICE(0x13d3, 0x3304) },
         { USB_DEVICE(0x0930, 0x0215) },
         { USB_DEVICE(0x0489, 0xE03D) },
+        { USB_DEVICE(0x0489, 0xE027) },
 
         /* Atheros AR9285 Malbec with sflash firmware */
         { USB_DEVICE(0x03F0, 0x311D) },
diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index debda27df9b0..ee82f2fb65f0 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -124,6 +124,7 @@ static struct usb_device_id blacklist_table[] = {
         { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
         { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
         { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
+        { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
 
         /* Atheros AR9285 Malbec with sflash firmware */
         { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
diff --git a/drivers/bus/omap-ocp2scp.c b/drivers/bus/omap-ocp2scp.c
index ff63560b8467..0c48b0e05ed6 100644
--- a/drivers/bus/omap-ocp2scp.c
+++ b/drivers/bus/omap-ocp2scp.c
@@ -22,6 +22,26 @@
 #include <linux/pm_runtime.h>
 #include <linux/of.h>
 #include <linux/of_platform.h>
+#include <linux/platform_data/omap_ocp2scp.h>
+
+/**
+ * _count_resources - count for the number of resources
+ * @res: struct resource *
+ *
+ * Count and return the number of resources populated for the device that is
+ * connected to ocp2scp.
+ */
+static unsigned _count_resources(struct resource *res)
+{
+        int cnt = 0;
+
+        while (res->start != res->end) {
+                cnt++;
+                res++;
+        }
+
+        return cnt;
+}
 
 static int ocp2scp_remove_devices(struct device *dev, void *c)
 {
@@ -34,20 +54,62 @@ static int ocp2scp_remove_devices(struct device *dev, void *c)
 
 static int __devinit omap_ocp2scp_probe(struct platform_device *pdev)
 {
-        int                     ret;
-        struct device_node      *np = pdev->dev.of_node;
+        int ret;
+        unsigned res_cnt, i;
+        struct device_node *np = pdev->dev.of_node;
+        struct platform_device *pdev_child;
+        struct omap_ocp2scp_platform_data *pdata = pdev->dev.platform_data;
+        struct omap_ocp2scp_dev *dev;
 
         if (np) {
                 ret = of_platform_populate(np, NULL, NULL, &pdev->dev);
                 if (ret) {
-                        dev_err(&pdev->dev, "failed to add resources for ocp2scp child\n");
+                        dev_err(&pdev->dev,
+                            "failed to add resources for ocp2scp child\n");
                         goto err0;
                 }
+        } else if (pdata) {
+                for (i = 0, dev = *pdata->devices; i < pdata->dev_cnt; i++,
+                    dev++) {
+                        res_cnt = _count_resources(dev->res);
+
+                        pdev_child = platform_device_alloc(dev->drv_name,
+                            PLATFORM_DEVID_AUTO);
+                        if (!pdev_child) {
+                                dev_err(&pdev->dev,
+                                  "failed to allocate mem for ocp2scp child\n");
+                                goto err0;
+                        }
+
+                        ret = platform_device_add_resources(pdev_child,
+                            dev->res, res_cnt);
+                        if (ret) {
+                                dev_err(&pdev->dev,
+                                 "failed to add resources for ocp2scp child\n");
+                                goto err1;
+                        }
+
+                        pdev_child->dev.parent  = &pdev->dev;
+
+                        ret = platform_device_add(pdev_child);
+                        if (ret) {
+                                dev_err(&pdev->dev,
+                                   "failed to register ocp2scp child device\n");
+                                goto err1;
+                        }
+                }
+        } else {
+                dev_err(&pdev->dev, "OCP2SCP initialized without plat data\n");
+                return -EINVAL;
         }
+
         pm_runtime_enable(&pdev->dev);
 
         return 0;
 
+err1:
+        platform_device_put(pdev_child);
+
 err0:
         device_for_each_child(&pdev->dev, NULL, ocp2scp_remove_devices);
 
diff --git a/drivers/clk/ux500/u8500_clk.c b/drivers/clk/ux500/u8500_clk.c
index ca4a25ed844c..e2c17d187d98 100644
--- a/drivers/clk/ux500/u8500_clk.c
+++ b/drivers/clk/ux500/u8500_clk.c
@@ -40,7 +40,7 @@ void u8500_clk_init(void)
                                 CLK_IS_ROOT|CLK_IGNORE_UNUSED,
                                 32768);
         clk_register_clkdev(clk, "clk32k", NULL);
-        clk_register_clkdev(clk, NULL, "rtc-pl031");
+        clk_register_clkdev(clk, "apb_pclk", "rtc-pl031");
 
         /* PRCMU clocks */
         fw_version = prcmu_get_fw_version();
@@ -228,10 +228,17 @@ void u8500_clk_init(void)
 
         clk = clk_reg_prcc_pclk("p1_pclk2", "per1clk", U8500_CLKRST1_BASE,
                                 BIT(2), 0);
+        clk_register_clkdev(clk, "apb_pclk", "nmk-i2c.1");
+
         clk = clk_reg_prcc_pclk("p1_pclk3", "per1clk", U8500_CLKRST1_BASE,
                                 BIT(3), 0);
+        clk_register_clkdev(clk, "apb_pclk", "msp0");
+        clk_register_clkdev(clk, "apb_pclk", "ux500-msp-i2s.0");
+
         clk = clk_reg_prcc_pclk("p1_pclk4", "per1clk", U8500_CLKRST1_BASE,
                                 BIT(4), 0);
+        clk_register_clkdev(clk, "apb_pclk", "msp1");
+        clk_register_clkdev(clk, "apb_pclk", "ux500-msp-i2s.1");
 
         clk = clk_reg_prcc_pclk("p1_pclk5", "per1clk", U8500_CLKRST1_BASE,
                                 BIT(5), 0);
@@ -239,6 +246,7 @@ void u8500_clk_init(void)
 
         clk = clk_reg_prcc_pclk("p1_pclk6", "per1clk", U8500_CLKRST1_BASE,
                                 BIT(6), 0);
+        clk_register_clkdev(clk, "apb_pclk", "nmk-i2c.2");
 
         clk = clk_reg_prcc_pclk("p1_pclk7", "per1clk", U8500_CLKRST1_BASE,
                                 BIT(7), 0);
@@ -246,6 +254,7 @@ void u8500_clk_init(void)
 
         clk = clk_reg_prcc_pclk("p1_pclk8", "per1clk", U8500_CLKRST1_BASE,
                                 BIT(8), 0);
+        clk_register_clkdev(clk, "apb_pclk", "slimbus0");
 
         clk = clk_reg_prcc_pclk("p1_pclk9", "per1clk", U8500_CLKRST1_BASE,
                                 BIT(9), 0);
@@ -255,11 +264,16 @@ void u8500_clk_init(void)
 
         clk = clk_reg_prcc_pclk("p1_pclk10", "per1clk", U8500_CLKRST1_BASE,
                                 BIT(10), 0);
+        clk_register_clkdev(clk, "apb_pclk", "nmk-i2c.4");
+
         clk = clk_reg_prcc_pclk("p1_pclk11", "per1clk", U8500_CLKRST1_BASE,
                                 BIT(11), 0);
+        clk_register_clkdev(clk, "apb_pclk", "msp3");
+        clk_register_clkdev(clk, "apb_pclk", "ux500-msp-i2s.3");
 
         clk = clk_reg_prcc_pclk("p2_pclk0", "per2clk", U8500_CLKRST2_BASE,
                                 BIT(0), 0);
+        clk_register_clkdev(clk, "apb_pclk", "nmk-i2c.3");
 
         clk = clk_reg_prcc_pclk("p2_pclk1", "per2clk", U8500_CLKRST2_BASE,
                                 BIT(1), 0);
@@ -279,12 +293,13 @@ void u8500_clk_init(void)
 
         clk = clk_reg_prcc_pclk("p2_pclk5", "per2clk", U8500_CLKRST2_BASE,
                                 BIT(5), 0);
+        clk_register_clkdev(clk, "apb_pclk", "msp2");
+        clk_register_clkdev(clk, "apb_pclk", "ux500-msp-i2s.2");
 
         clk = clk_reg_prcc_pclk("p2_pclk6", "per2clk", U8500_CLKRST2_BASE,
                                 BIT(6), 0);
         clk_register_clkdev(clk, "apb_pclk", "sdi1");
 
-
         clk = clk_reg_prcc_pclk("p2_pclk7", "per2clk", U8500_CLKRST2_BASE,
                                 BIT(7), 0);
         clk_register_clkdev(clk, "apb_pclk", "sdi3");
@@ -316,10 +331,15 @@ void u8500_clk_init(void)
 
         clk = clk_reg_prcc_pclk("p3_pclk1", "per3clk", U8500_CLKRST3_BASE,
                                 BIT(1), 0);
+        clk_register_clkdev(clk, "apb_pclk", "ssp0");
+
         clk = clk_reg_prcc_pclk("p3_pclk2", "per3clk", U8500_CLKRST3_BASE,
                                 BIT(2), 0);
+        clk_register_clkdev(clk, "apb_pclk", "ssp1");
+
         clk = clk_reg_prcc_pclk("p3_pclk3", "per3clk", U8500_CLKRST3_BASE,
                                 BIT(3), 0);
+        clk_register_clkdev(clk, "apb_pclk", "nmk-i2c.0");
 
         clk = clk_reg_prcc_pclk("p3_pclk4", "per3clk", U8500_CLKRST3_BASE,
                                 BIT(4), 0);
@@ -401,10 +421,17 @@ void u8500_clk_init(void)
 
         clk = clk_reg_prcc_kclk("p1_i2c1_kclk", "i2cclk",
                         U8500_CLKRST1_BASE, BIT(2), CLK_SET_RATE_GATE);
+        clk_register_clkdev(clk, NULL, "nmk-i2c.1");
+
         clk = clk_reg_prcc_kclk("p1_msp0_kclk", "msp02clk",
                         U8500_CLKRST1_BASE, BIT(3), CLK_SET_RATE_GATE);
+        clk_register_clkdev(clk, NULL, "msp0");
+        clk_register_clkdev(clk, NULL, "ux500-msp-i2s.0");
+
         clk = clk_reg_prcc_kclk("p1_msp1_kclk", "msp1clk",
                         U8500_CLKRST1_BASE, BIT(4), CLK_SET_RATE_GATE);
+        clk_register_clkdev(clk, NULL, "msp1");
+        clk_register_clkdev(clk, NULL, "ux500-msp-i2s.1");
 
         clk = clk_reg_prcc_kclk("p1_sdi0_kclk", "sdmmcclk",
                         U8500_CLKRST1_BASE, BIT(5), CLK_SET_RATE_GATE);
@@ -412,17 +439,25 @@ void u8500_clk_init(void)
 
         clk = clk_reg_prcc_kclk("p1_i2c2_kclk", "i2cclk",
                         U8500_CLKRST1_BASE, BIT(6), CLK_SET_RATE_GATE);
+        clk_register_clkdev(clk, NULL, "nmk-i2c.2");
+
         clk = clk_reg_prcc_kclk("p1_slimbus0_kclk", "slimclk",
-                        U8500_CLKRST1_BASE, BIT(3), CLK_SET_RATE_GATE);
-        /* FIXME: Redefinition of BIT(3). */
+                        U8500_CLKRST1_BASE, BIT(8), CLK_SET_RATE_GATE);
+        clk_register_clkdev(clk, NULL, "slimbus0");
+
         clk = clk_reg_prcc_kclk("p1_i2c4_kclk", "i2cclk",
                         U8500_CLKRST1_BASE, BIT(9), CLK_SET_RATE_GATE);
+        clk_register_clkdev(clk, NULL, "nmk-i2c.4");
+
         clk = clk_reg_prcc_kclk("p1_msp3_kclk", "msp1clk",
                         U8500_CLKRST1_BASE, BIT(10), CLK_SET_RATE_GATE);
+        clk_register_clkdev(clk, NULL, "msp3");
+        clk_register_clkdev(clk, NULL, "ux500-msp-i2s.3");
 
         /* Periph2 */
         clk = clk_reg_prcc_kclk("p2_i2c3_kclk", "i2cclk",
                         U8500_CLKRST2_BASE, BIT(0), CLK_SET_RATE_GATE);
+        clk_register_clkdev(clk, NULL, "nmk-i2c.3");
 
         clk = clk_reg_prcc_kclk("p2_sdi4_kclk", "sdmmcclk",
                         U8500_CLKRST2_BASE, BIT(2), CLK_SET_RATE_GATE);
@@ -430,6 +465,8 @@ void u8500_clk_init(void)
 
         clk = clk_reg_prcc_kclk("p2_msp2_kclk", "msp02clk",
                         U8500_CLKRST2_BASE, BIT(3), CLK_SET_RATE_GATE);
+        clk_register_clkdev(clk, NULL, "msp2");
+        clk_register_clkdev(clk, NULL, "ux500-msp-i2s.2");
 
         clk = clk_reg_prcc_kclk("p2_sdi1_kclk", "sdmmcclk",
                         U8500_CLKRST2_BASE, BIT(4), CLK_SET_RATE_GATE);
@@ -450,10 +487,15 @@ void u8500_clk_init(void)
         /* Periph3 */
         clk = clk_reg_prcc_kclk("p3_ssp0_kclk", "sspclk",
                         U8500_CLKRST3_BASE, BIT(1), CLK_SET_RATE_GATE);
+        clk_register_clkdev(clk, NULL, "ssp0");
+
         clk = clk_reg_prcc_kclk("p3_ssp1_kclk", "sspclk",
                         U8500_CLKRST3_BASE, BIT(2), CLK_SET_RATE_GATE);
+        clk_register_clkdev(clk, NULL, "ssp1");
+
         clk = clk_reg_prcc_kclk("p3_i2c0_kclk", "i2cclk",
                         U8500_CLKRST3_BASE, BIT(3), CLK_SET_RATE_GATE);
+        clk_register_clkdev(clk, NULL, "nmk-i2c.0");
 
         clk = clk_reg_prcc_kclk("p3_sdi2_kclk", "sdmmcclk",
                         U8500_CLKRST3_BASE, BIT(4), CLK_SET_RATE_GATE);
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index d055cee36942..f11d8e3b4041 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -47,7 +47,7 @@ if GPIOLIB
 
 config OF_GPIO
         def_bool y
-        depends on OF && !SPARC
+        depends on OF
 
 config DEBUG_GPIO
         bool "Debug GPIO calls"
diff --git a/drivers/gpu/drm/drm_fops.c b/drivers/gpu/drm/drm_fops.c
index 7ef1b673e1be..133b4132983e 100644
--- a/drivers/gpu/drm/drm_fops.c
+++ b/drivers/gpu/drm/drm_fops.c
@@ -121,6 +121,8 @@ int drm_open(struct inode *inode, struct file *filp)
         int minor_id = iminor(inode);
         struct drm_minor *minor;
         int retcode = 0;
+        int need_setup = 0;
+        struct address_space *old_mapping;
 
         minor = idr_find(&drm_minors_idr, minor_id);
         if (!minor)
@@ -132,23 +134,37 @@ int drm_open(struct inode *inode, struct file *filp)
         if (drm_device_is_unplugged(dev))
                 return -ENODEV;
 
+        if (!dev->open_count++)
+                need_setup = 1;
+        mutex_lock(&dev->struct_mutex);
+        old_mapping = dev->dev_mapping;
+        if (old_mapping == NULL)
+                dev->dev_mapping = &inode->i_data;
+        /* ihold ensures nobody can remove inode with our i_data */
+        ihold(container_of(dev->dev_mapping, struct inode, i_data));
+        inode->i_mapping = dev->dev_mapping;
+        filp->f_mapping = dev->dev_mapping;
+        mutex_unlock(&dev->struct_mutex);
+
         retcode = drm_open_helper(inode, filp, dev);
-        if (!retcode) {
-                atomic_inc(&dev->counts[_DRM_STAT_OPENS]);
-                if (!dev->open_count++)
-                        retcode = drm_setup(dev);
-        }
-        if (!retcode) {
-                mutex_lock(&dev->struct_mutex);
-                if (dev->dev_mapping == NULL)
-                        dev->dev_mapping = &inode->i_data;
-                /* ihold ensures nobody can remove inode with our i_data */
-                ihold(container_of(dev->dev_mapping, struct inode, i_data));
-                inode->i_mapping = dev->dev_mapping;
-                filp->f_mapping = dev->dev_mapping;
-                mutex_unlock(&dev->struct_mutex);
+        if (retcode)
+                goto err_undo;
+        atomic_inc(&dev->counts[_DRM_STAT_OPENS]);
+        if (need_setup) {
+                retcode = drm_setup(dev);
+                if (retcode)
+                        goto err_undo;
         }
+        return 0;
 
+err_undo:
+        mutex_lock(&dev->struct_mutex);
+        filp->f_mapping = old_mapping;
+        inode->i_mapping = old_mapping;
+        iput(container_of(dev->dev_mapping, struct inode, i_data));
+        dev->dev_mapping = old_mapping;
+        mutex_unlock(&dev->struct_mutex);
+        dev->open_count--;
         return retcode;
 }
 EXPORT_SYMBOL(drm_open);
diff --git a/drivers/gpu/drm/exynos/Kconfig b/drivers/gpu/drm/exynos/Kconfig
index 59a26e577b57..fc345d4ebb03 100644
--- a/drivers/gpu/drm/exynos/Kconfig
+++ b/drivers/gpu/drm/exynos/Kconfig
@@ -1,6 +1,6 @@
 config DRM_EXYNOS
         tristate "DRM Support for Samsung SoC EXYNOS Series"
-        depends on DRM && PLAT_SAMSUNG
+        depends on DRM && (PLAT_SAMSUNG || ARCH_MULTIPLATFORM)
         select DRM_KMS_HELPER
         select FB_CFB_FILLRECT
         select FB_CFB_COPYAREA
diff --git a/drivers/gpu/drm/exynos/exynos_drm_connector.c b/drivers/gpu/drm/exynos/exynos_drm_connector.c
index 18c271862ca8..0f68a2872673 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_connector.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_connector.c
@@ -374,6 +374,7 @@ struct drm_connector *exynos_drm_connector_create(struct drm_device *dev,
         exynos_connector->encoder_id = encoder->base.id;
         exynos_connector->manager = manager;
         exynos_connector->dpms = DRM_MODE_DPMS_OFF;
+        connector->dpms = DRM_MODE_DPMS_OFF;
         connector->encoder = encoder;
 
         err = drm_mode_connector_attach_encoder(connector, encoder);
diff --git a/drivers/gpu/drm/exynos/exynos_drm_encoder.c b/drivers/gpu/drm/exynos/exynos_drm_encoder.c
index e51503fbaf2b..241ad1eeec64 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_encoder.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_encoder.c
@@ -43,12 +43,14 @@
  * @manager: specific encoder has its own manager to control a hardware
  *      appropriately and we can access a hardware drawing on this manager.
  * @dpms: store the encoder dpms value.
+ * @updated: indicate whether overlay data updating is needed or not.
  */
 struct exynos_drm_encoder {
         struct drm_crtc                 *old_crtc;
         struct drm_encoder              drm_encoder;
         struct exynos_drm_manager       *manager;
-        int dpms;
+        int                             dpms;
+        bool                            updated;
 };
 
 static void exynos_drm_connector_power(struct drm_encoder *encoder, int mode)
@@ -85,7 +87,9 @@ static void exynos_drm_encoder_dpms(struct drm_encoder *encoder, int mode)
         switch (mode) {
         case DRM_MODE_DPMS_ON:
                 if (manager_ops && manager_ops->apply)
-                        manager_ops->apply(manager->dev);
+                        if (!exynos_encoder->updated)
+                                manager_ops->apply(manager->dev);
+
                 exynos_drm_connector_power(encoder, mode);
                 exynos_encoder->dpms = mode;
                 break;
@@ -94,6 +98,7 @@ static void exynos_drm_encoder_dpms(struct drm_encoder *encoder, int mode)
         case DRM_MODE_DPMS_OFF:
                 exynos_drm_connector_power(encoder, mode);
                 exynos_encoder->dpms = mode;
+                exynos_encoder->updated = false;
                 break;
         default:
                 DRM_ERROR("unspecified mode %d\n", mode);
@@ -205,13 +210,22 @@ static void exynos_drm_encoder_prepare(struct drm_encoder *encoder)
 
 static void exynos_drm_encoder_commit(struct drm_encoder *encoder)
 {
-        struct exynos_drm_manager *manager = exynos_drm_get_manager(encoder);
+        struct exynos_drm_encoder *exynos_encoder = to_exynos_encoder(encoder);
+        struct exynos_drm_manager *manager = exynos_encoder->manager;
         struct exynos_drm_manager_ops *manager_ops = manager->ops;
 
         DRM_DEBUG_KMS("%s\n", __FILE__);
 
         if (manager_ops && manager_ops->commit)
                 manager_ops->commit(manager->dev);
+
+        /*
+         * this will avoid one issue that overlay data is updated to
+         * real hardware two times.
+         * And this variable will be used to check if the data was
+         * already updated or not by exynos_drm_encoder_dpms function.
+         */
+        exynos_encoder->updated = true;
 }
 
 static void exynos_drm_encoder_disable(struct drm_encoder *encoder)
@@ -401,19 +415,6 @@ void exynos_drm_encoder_crtc_dpms(struct drm_encoder *encoder, void *data)
                 manager_ops->dpms(manager->dev, mode);
 
         /*
-         * set current mode to new one so that data aren't updated into
-         * registers by drm_helper_connector_dpms two times.
-         *
-         * in case that drm_crtc_helper_set_mode() is called,
-         * overlay_ops->commit() and manager_ops->commit() callbacks
-         * can be called two times, first at drm_crtc_helper_set_mode()
-         * and second at drm_helper_connector_dpms().
-         * so with this setting, when drm_helper_connector_dpms() is called
-         * encoder->funcs->dpms() will be ignored.
-         */
-        exynos_encoder->dpms = mode;
-
-        /*
          * if this condition is ok then it means that the crtc is already
          * detached from encoder and last function for detaching is properly
          * done, so clear pipe from manager to prevent repeated call.
diff --git a/drivers/gpu/drm/exynos/exynos_mixer.c b/drivers/gpu/drm/exynos/exynos_mixer.c
index 614b2e9ac462..e7fbb823fd8e 100644
--- a/drivers/gpu/drm/exynos/exynos_mixer.c
+++ b/drivers/gpu/drm/exynos/exynos_mixer.c
@@ -1142,7 +1142,7 @@ static int __devinit mixer_probe(struct platform_device *pdev)
                 const struct of_device_id *match;
                 match = of_match_node(of_match_ptr(mixer_match_types),
                                                           pdev->dev.of_node);
-                drv = match->data;
+                drv = (struct mixer_drv_data *)match->data;
         } else {
                 drv = (struct mixer_drv_data *)
                         platform_get_device_id(pdev)->driver_data;
diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c
index c9bfd83dde64..61ae104dca8c 100644
--- a/drivers/gpu/drm/i915/i915_dma.c
+++ b/drivers/gpu/drm/i915/i915_dma.c
@@ -1505,7 +1505,8 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags)
                 goto put_gmch;
         }
 
-        i915_kick_out_firmware_fb(dev_priv);
+        if (drm_core_check_feature(dev, DRIVER_MODESET))
+                i915_kick_out_firmware_fb(dev_priv);
 
         pci_set_master(dev->pdev);
 
diff --git a/drivers/gpu/drm/i915/intel_crt.c b/drivers/gpu/drm/i915/intel_crt.c
index f78061af7045..6345878ae1e7 100644
--- a/drivers/gpu/drm/i915/intel_crt.c
+++ b/drivers/gpu/drm/i915/intel_crt.c
@@ -143,7 +143,7 @@ static void intel_crt_dpms(struct drm_connector *connector, int mode)
         int old_dpms;
 
         /* PCH platforms and VLV only support on/off. */
-        if (INTEL_INFO(dev)->gen < 5 && mode != DRM_MODE_DPMS_ON)
+        if (INTEL_INFO(dev)->gen >= 5 && mode != DRM_MODE_DPMS_ON)
                 mode = DRM_MODE_DPMS_OFF;
 
         if (mode == connector->dpms)
@@ -729,7 +729,7 @@ void intel_crt_init(struct drm_device *dev)
 
         crt->base.type = INTEL_OUTPUT_ANALOG;
         crt->base.cloneable = true;
-        if (IS_HASWELL(dev))
+        if (IS_HASWELL(dev) || IS_I830(dev))
                 crt->base.crtc_mask = (1 << 0);
         else
                 crt->base.crtc_mask = (1 << 0) | (1 << 1) | (1 << 2);
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 461a637f1ef7..4154bcd7a070 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -3841,6 +3841,17 @@ static bool intel_choose_pipe_bpp_dither(struct drm_crtc *crtc,
                         }
                 }
 
+                if (intel_encoder->type == INTEL_OUTPUT_EDP) {
+                        /* Use VBT settings if we have an eDP panel */
+                        unsigned int edp_bpc = dev_priv->edp.bpp / 3;
+
+                        if (edp_bpc < display_bpc) {
+                                DRM_DEBUG_KMS("clamping display bpc (was %d) to eDP (%d)\n", display_bpc, edp_bpc);
+                                display_bpc = edp_bpc;
+                        }
+                        continue;
+                }
+
                 /*
                  * HDMI is either 12 or 8, so if the display lets 10bpc sneak
                  * through, clamp it down.  (Note: >12bpc will be caught below.)
diff --git a/drivers/gpu/drm/i915/intel_overlay.c b/drivers/gpu/drm/i915/intel_overlay.c
index 495625914e4a..d7bc817f51a0 100644
--- a/drivers/gpu/drm/i915/intel_overlay.c
+++ b/drivers/gpu/drm/i915/intel_overlay.c
@@ -341,9 +341,17 @@ static int intel_overlay_off(struct intel_overlay *overlay)
         intel_ring_emit(ring, flip_addr);
         intel_ring_emit(ring, MI_WAIT_FOR_EVENT | MI_WAIT_FOR_OVERLAY_FLIP);
         /* turn overlay off */
-        intel_ring_emit(ring, MI_OVERLAY_FLIP | MI_OVERLAY_OFF);
-        intel_ring_emit(ring, flip_addr);
-        intel_ring_emit(ring, MI_WAIT_FOR_EVENT | MI_WAIT_FOR_OVERLAY_FLIP);
+        if (IS_I830(dev)) {
+                /* Workaround: Don't disable the overlay fully, since otherwise
+                 * it dies on the next OVERLAY_ON cmd. */
+                intel_ring_emit(ring, MI_NOOP);
+                intel_ring_emit(ring, MI_NOOP);
+                intel_ring_emit(ring, MI_NOOP);
+        } else {
+                intel_ring_emit(ring, MI_OVERLAY_FLIP | MI_OVERLAY_OFF);
+                intel_ring_emit(ring, flip_addr);
+                intel_ring_emit(ring, MI_WAIT_FOR_EVENT | MI_WAIT_FOR_OVERLAY_FLIP);
+        }
         intel_ring_advance(ring);
 
         return intel_overlay_do_wait_request(overlay, intel_overlay_off_tail);
diff --git a/drivers/gpu/drm/i915/intel_panel.c b/drivers/gpu/drm/i915/intel_panel.c
index e019b2369861..e2aacd329545 100644
--- a/drivers/gpu/drm/i915/intel_panel.c
+++ b/drivers/gpu/drm/i915/intel_panel.c
@@ -435,7 +435,7 @@ int intel_panel_setup_backlight(struct drm_device *dev)
         props.type = BACKLIGHT_RAW;
         props.max_brightness = _intel_panel_get_max_backlight(dev);
         if (props.max_brightness == 0) {
-                DRM_ERROR("Failed to get maximum backlight value\n");
+                DRM_DEBUG_DRIVER("Failed to get maximum backlight value\n");
                 return -ENODEV;
         }
         dev_priv->backlight =
diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c
index c01d97db0061..c600fb06e25e 100644
--- a/drivers/gpu/drm/i915/intel_sdvo.c
+++ b/drivers/gpu/drm/i915/intel_sdvo.c
@@ -894,6 +894,45 @@ static void intel_sdvo_dump_hdmi_buf(struct intel_sdvo *intel_sdvo)
 }
 #endif
 
+static bool intel_sdvo_write_infoframe(struct intel_sdvo *intel_sdvo,
+                                       unsigned if_index, uint8_t tx_rate,
+                                       uint8_t *data, unsigned length)
+{
+        uint8_t set_buf_index[2] = { if_index, 0 };
+        uint8_t hbuf_size, tmp[8];
+        int i;
+
+        if (!intel_sdvo_set_value(intel_sdvo,
+                                  SDVO_CMD_SET_HBUF_INDEX,
+                                  set_buf_index, 2))
+                return false;
+
+        if (!intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_HBUF_INFO,
+                                  &hbuf_size, 1))
+                return false;
+
+        /* Buffer size is 0 based, hooray! */
+        hbuf_size++;
+
+        DRM_DEBUG_KMS("writing sdvo hbuf: %i, hbuf_size %i, hbuf_size: %i\n",
+                      if_index, length, hbuf_size);
+
+        for (i = 0; i < hbuf_size; i += 8) {
+                memset(tmp, 0, 8);
+                if (i < length)
+                        memcpy(tmp, data + i, min_t(unsigned, 8, length - i));
+
+                if (!intel_sdvo_set_value(intel_sdvo,
+                                          SDVO_CMD_SET_HBUF_DATA,
+                                          tmp, 8))
+                        return false;
+        }
+
+        return intel_sdvo_set_value(intel_sdvo,
+                                    SDVO_CMD_SET_HBUF_TXRATE,
+                                    &tx_rate, 1);
+}
+
 static bool intel_sdvo_set_avi_infoframe(struct intel_sdvo *intel_sdvo)
 {
         struct dip_infoframe avi_if = {
@@ -901,11 +940,7 @@ static bool intel_sdvo_set_avi_infoframe(struct intel_sdvo *intel_sdvo)
                 .ver = DIP_VERSION_AVI,
                 .len = DIP_LEN_AVI,
         };
-        uint8_t tx_rate = SDVO_HBUF_TX_VSYNC;
-        uint8_t set_buf_index[2] = { 1, 0 };
         uint8_t sdvo_data[4 + sizeof(avi_if.body.avi)];
-        uint64_t *data = (uint64_t *)sdvo_data;
-        unsigned i;
 
         intel_dip_infoframe_csum(&avi_if);
 
@@ -915,22 +950,9 @@ static bool intel_sdvo_set_avi_infoframe(struct intel_sdvo *intel_sdvo)
         sdvo_data[3] = avi_if.checksum;
         memcpy(&sdvo_data[4], &avi_if.body, sizeof(avi_if.body.avi));
 
-        if (!intel_sdvo_set_value(intel_sdvo,
-                                  SDVO_CMD_SET_HBUF_INDEX,
-                                  set_buf_index, 2))
-                return false;
-
-        for (i = 0; i < sizeof(sdvo_data); i += 8) {
-                if (!intel_sdvo_set_value(intel_sdvo,
-                                          SDVO_CMD_SET_HBUF_DATA,
-                                          data, 8))
-                        return false;
-                data++;
-        }
-
-        return intel_sdvo_set_value(intel_sdvo,
-                                    SDVO_CMD_SET_HBUF_TXRATE,
-                                    &tx_rate, 1);
+        return intel_sdvo_write_infoframe(intel_sdvo, SDVO_HBUF_INDEX_AVI_IF,
+                                          SDVO_HBUF_TX_VSYNC,
+                                          sdvo_data, sizeof(sdvo_data));
 }
 
 static bool intel_sdvo_set_tv_format(struct intel_sdvo *intel_sdvo)
@@ -2360,6 +2382,18 @@ intel_sdvo_output_setup(struct intel_sdvo *intel_sdvo, uint16_t flags)
         return true;
 }
 
+static void intel_sdvo_output_cleanup(struct intel_sdvo *intel_sdvo)
+{
+        struct drm_device *dev = intel_sdvo->base.base.dev;
+        struct drm_connector *connector, *tmp;
+
+        list_for_each_entry_safe(connector, tmp,
+                                 &dev->mode_config.connector_list, head) {
+                if (intel_attached_encoder(connector) == &intel_sdvo->base)
+                        intel_sdvo_destroy(connector);
+        }
+}
+
 static bool intel_sdvo_tv_create_property(struct intel_sdvo *intel_sdvo,
                                           struct intel_sdvo_connector *intel_sdvo_connector,
                                           int type)
@@ -2683,7 +2717,8 @@ bool intel_sdvo_init(struct drm_device *dev, uint32_t sdvo_reg, bool is_sdvob)
                                     intel_sdvo->caps.output_flags) != true) {
                 DRM_DEBUG_KMS("SDVO output failed to setup on %s\n",
                               SDVO_NAME(intel_sdvo));
-                goto err;
+                /* Output_setup can leave behind connectors! */
+                goto err_output;
         }
 
         /* Only enable the hotplug irq if we need it, to work around noisy
@@ -2696,12 +2731,12 @@ bool intel_sdvo_init(struct drm_device *dev, uint32_t sdvo_reg, bool is_sdvob)
 
         /* Set the input timing to the screen. Assume always input 0. */
         if (!intel_sdvo_set_target_input(intel_sdvo))
-                goto err;
+                goto err_output;
 
         if (!intel_sdvo_get_input_pixel_clock_range(intel_sdvo,
                                                     &intel_sdvo->pixel_clock_min,
                                                     &intel_sdvo->pixel_clock_max))
-                goto err;
+                goto err_output;
 
         DRM_DEBUG_KMS("%s device VID/DID: %02X:%02X.%02X, "
                         "clock range %dMHz - %dMHz, "
@@ -2721,6 +2756,9 @@ bool intel_sdvo_init(struct drm_device *dev, uint32_t sdvo_reg, bool is_sdvob)
                         (SDVO_OUTPUT_TMDS1 | SDVO_OUTPUT_RGB1) ? 'Y' : 'N');
         return true;
 
+err_output:
+        intel_sdvo_output_cleanup(intel_sdvo);
+
 err:
         drm_encoder_cleanup(&intel_encoder->base);
         i2c_del_adapter(&intel_sdvo->ddc);
diff --git a/drivers/gpu/drm/i915/intel_sdvo_regs.h b/drivers/gpu/drm/i915/intel_sdvo_regs.h
index 9d030142ee43..770bdd6ecd9f 100644
--- a/drivers/gpu/drm/i915/intel_sdvo_regs.h
+++ b/drivers/gpu/drm/i915/intel_sdvo_regs.h
@@ -708,6 +708,8 @@ struct intel_sdvo_enhancements_arg {
 #define SDVO_CMD_SET_AUDIO_STAT         0x91
 #define SDVO_CMD_GET_AUDIO_STAT         0x92
 #define SDVO_CMD_SET_HBUF_INDEX         0x93
+  #define SDVO_HBUF_INDEX_ELD           0
+  #define SDVO_HBUF_INDEX_AVI_IF        1
 #define SDVO_CMD_GET_HBUF_INDEX         0x94
 #define SDVO_CMD_GET_HBUF_INFO          0x95
 #define SDVO_CMD_SET_HBUF_AV_SPLIT      0x96
diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/nv50.c b/drivers/gpu/drm/nouveau/core/engine/disp/nv50.c
index 16a9afb1060b..05a909a17cee 100644
--- a/drivers/gpu/drm/nouveau/core/engine/disp/nv50.c
+++ b/drivers/gpu/drm/nouveau/core/engine/disp/nv50.c
@@ -22,6 +22,8 @@
  * Authors: Ben Skeggs
  */
 
+#include <subdev/bar.h>
+
 #include <engine/software.h>
 #include <engine/disp.h>
 
@@ -37,6 +39,7 @@ nv50_disp_sclass[] = {
 static void
 nv50_disp_intr_vblank(struct nv50_disp_priv *priv, int crtc)
 {
+        struct nouveau_bar *bar = nouveau_bar(priv);
         struct nouveau_disp *disp = &priv->base;
         struct nouveau_software_chan *chan, *temp;
         unsigned long flags;
@@ -46,18 +49,19 @@ nv50_disp_intr_vblank(struct nv50_disp_priv *priv, int crtc)
                 if (chan->vblank.crtc != crtc)
                         continue;
 
-                nv_wr32(priv, 0x001704, chan->vblank.channel);
-                nv_wr32(priv, 0x001710, 0x80000000 | chan->vblank.ctxdma);
-
                 if (nv_device(priv)->chipset == 0x50) {
+                        nv_wr32(priv, 0x001704, chan->vblank.channel);
+                        nv_wr32(priv, 0x001710, 0x80000000 | chan->vblank.ctxdma);
+                        bar->flush(bar);
                         nv_wr32(priv, 0x001570, chan->vblank.offset);
                         nv_wr32(priv, 0x001574, chan->vblank.value);
                 } else {
-                        if (nv_device(priv)->chipset >= 0xc0) {
-                                nv_wr32(priv, 0x06000c,
-                                        upper_32_bits(chan->vblank.offset));
-                        }
-                        nv_wr32(priv, 0x060010, chan->vblank.offset);
+                        nv_wr32(priv, 0x001718, 0x80000000 | chan->vblank.channel);
+                        bar->flush(bar);
+                        nv_wr32(priv, 0x06000c,
+                                upper_32_bits(chan->vblank.offset));
+                        nv_wr32(priv, 0x060010,
+                                lower_32_bits(chan->vblank.offset));
                         nv_wr32(priv, 0x060014, chan->vblank.value);
                 }
 
diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/nv40.c b/drivers/gpu/drm/nouveau/core/engine/graph/nv40.c
index 8d0021049ec0..425001204a89 100644
--- a/drivers/gpu/drm/nouveau/core/engine/graph/nv40.c
+++ b/drivers/gpu/drm/nouveau/core/engine/graph/nv40.c
@@ -156,8 +156,8 @@ nv40_graph_context_ctor(struct nouveau_object *parent,
 static int
 nv40_graph_context_fini(struct nouveau_object *object, bool suspend)
 {
-        struct nv04_graph_priv *priv = (void *)object->engine;
-        struct nv04_graph_chan *chan = (void *)object;
+        struct nv40_graph_priv *priv = (void *)object->engine;
+        struct nv40_graph_chan *chan = (void *)object;
         u32 inst = 0x01000000 | nv_gpuobj(chan)->addr >> 4;
         int ret = 0;
 
diff --git a/drivers/gpu/drm/nouveau/core/engine/mpeg/nv40.c b/drivers/gpu/drm/nouveau/core/engine/mpeg/nv40.c
index 12418574efea..f7c581ad1991 100644
--- a/drivers/gpu/drm/nouveau/core/engine/mpeg/nv40.c
+++ b/drivers/gpu/drm/nouveau/core/engine/mpeg/nv40.c
@@ -38,7 +38,7 @@ struct nv40_mpeg_priv {
 };
 
 struct nv40_mpeg_chan {
-        struct nouveau_mpeg base;
+        struct nouveau_mpeg_chan base;
 };
 
 /*******************************************************************************
diff --git a/drivers/gpu/drm/nouveau/core/subdev/vm/nv41.c b/drivers/gpu/drm/nouveau/core/subdev/vm/nv41.c
index 49050d991e75..9474cfca6e4c 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/vm/nv41.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/vm/nv41.c
@@ -67,7 +67,7 @@ nv41_vm_unmap(struct nouveau_gpuobj *pgt, u32 pte, u32 cnt)
 static void
 nv41_vm_flush(struct nouveau_vm *vm)
 {
-        struct nv04_vm_priv *priv = (void *)vm->vmm;
+        struct nv04_vmmgr_priv *priv = (void *)vm->vmm;
 
         mutex_lock(&nv_subdev(priv)->mutex);
         nv_wr32(priv, 0x100810, 0x00000022);
diff --git a/drivers/gpu/drm/nouveau/nouveau_connector.c b/drivers/gpu/drm/nouveau/nouveau_connector.c
index 9a6e2cb282dc..d3595b23434a 100644
--- a/drivers/gpu/drm/nouveau/nouveau_connector.c
+++ b/drivers/gpu/drm/nouveau/nouveau_connector.c
@@ -355,7 +355,7 @@ nouveau_connector_detect_lvds(struct drm_connector *connector, bool force)
          * valid - it's not (rh#613284)
          */
         if (nv_encoder->dcb->lvdsconf.use_acpi_for_edid) {
-                if (!(nv_connector->edid = nouveau_acpi_edid(dev, connector))) {
+                if ((nv_connector->edid = nouveau_acpi_edid(dev, connector))) {
                         status = connector_status_connected;
                         goto out;
                 }
diff --git a/drivers/gpu/drm/radeon/atombios_crtc.c b/drivers/gpu/drm/radeon/atombios_crtc.c
index 2e566e123e9e..3bce0299f64a 100644
--- a/drivers/gpu/drm/radeon/atombios_crtc.c
+++ b/drivers/gpu/drm/radeon/atombios_crtc.c
@@ -1696,35 +1696,43 @@ static int radeon_atom_pick_pll(struct drm_crtc *crtc)
                         return ATOM_PPLL2;
                 DRM_ERROR("unable to allocate a PPLL\n");
                 return ATOM_PPLL_INVALID;
-        } else {
-                if (ASIC_IS_AVIVO(rdev)) {
-                        /* in DP mode, the DP ref clock can come from either PPLL
-                         * depending on the asic:
-                         * DCE3: PPLL1 or PPLL2
-                         */
-                        if (ENCODER_MODE_IS_DP(atombios_get_encoder_mode(radeon_crtc->encoder))) {
-                                /* use the same PPLL for all DP monitors */
-                                pll = radeon_get_shared_dp_ppll(crtc);
-                                if (pll != ATOM_PPLL_INVALID)
-                                        return pll;
-                        } else {
-                                /* use the same PPLL for all monitors with the same clock */
-                                pll = radeon_get_shared_nondp_ppll(crtc);
-                                if (pll != ATOM_PPLL_INVALID)
-                                        return pll;
-                        }
-                        /* all other cases */
-                        pll_in_use = radeon_get_pll_use_mask(crtc);
+        } else if (ASIC_IS_AVIVO(rdev)) {
+                /* in DP mode, the DP ref clock can come from either PPLL
+                 * depending on the asic:
+                 * DCE3: PPLL1 or PPLL2
+                 */
+                if (ENCODER_MODE_IS_DP(atombios_get_encoder_mode(radeon_crtc->encoder))) {
+                        /* use the same PPLL for all DP monitors */
+                        pll = radeon_get_shared_dp_ppll(crtc);
+                        if (pll != ATOM_PPLL_INVALID)
+                                return pll;
+                } else {
+                        /* use the same PPLL for all monitors with the same clock */
+                        pll = radeon_get_shared_nondp_ppll(crtc);
+                        if (pll != ATOM_PPLL_INVALID)
+                                return pll;
+                }
+                /* all other cases */
+                pll_in_use = radeon_get_pll_use_mask(crtc);
+                /* the order shouldn't matter here, but we probably
+                 * need this until we have atomic modeset
+                 */
+                if (rdev->flags & RADEON_IS_IGP) {
                         if (!(pll_in_use & (1 << ATOM_PPLL1)))
                                 return ATOM_PPLL1;
                         if (!(pll_in_use & (1 << ATOM_PPLL2)))
                                 return ATOM_PPLL2;
-                        DRM_ERROR("unable to allocate a PPLL\n");
-                        return ATOM_PPLL_INVALID;
                 } else {
-                        /* on pre-R5xx asics, the crtc to pll mapping is hardcoded */
-                        return radeon_crtc->crtc_id;
+                        if (!(pll_in_use & (1 << ATOM_PPLL2)))
+                                return ATOM_PPLL2;
+                        if (!(pll_in_use & (1 << ATOM_PPLL1)))
+                                return ATOM_PPLL1;
                 }
+                DRM_ERROR("unable to allocate a PPLL\n");
+                return ATOM_PPLL_INVALID;
+        } else {
+                /* on pre-R5xx asics, the crtc to pll mapping is hardcoded */
+                return radeon_crtc->crtc_id;
         }
 }
 
diff --git a/drivers/gpu/drm/radeon/atombios_encoders.c b/drivers/gpu/drm/radeon/atombios_encoders.c
index ba498f8e47a2..010bae19554a 100644
--- a/drivers/gpu/drm/radeon/atombios_encoders.c
+++ b/drivers/gpu/drm/radeon/atombios_encoders.c
@@ -1625,7 +1625,7 @@ radeon_atom_encoder_dpms_dig(struct drm_encoder *encoder, int mode)
                         atombios_dig_transmitter_setup(encoder, ATOM_TRANSMITTER_ACTION_SETUP, 0, 0);
                         atombios_dig_transmitter_setup(encoder, ATOM_TRANSMITTER_ACTION_ENABLE, 0, 0);
                         /* some early dce3.2 boards have a bug in their transmitter control table */
-                        if ((rdev->family != CHIP_RV710) || (rdev->family != CHIP_RV730))
+                        if ((rdev->family != CHIP_RV710) && (rdev->family != CHIP_RV730))
                                 atombios_dig_transmitter_setup(encoder, ATOM_TRANSMITTER_ACTION_ENABLE_OUTPUT, 0, 0);
                 }
                 if (ENCODER_MODE_IS_DP(atombios_get_encoder_mode(encoder)) && connector) {
diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c
index 14313ad43b76..af31f829f4a8 100644
--- a/drivers/gpu/drm/radeon/evergreen.c
+++ b/drivers/gpu/drm/radeon/evergreen.c
@@ -1372,7 +1372,7 @@ void evergreen_mc_resume(struct radeon_device *rdev, struct evergreen_mc_save *s
         WREG32(BIF_FB_EN, FB_READ_EN | FB_WRITE_EN);
 
         for (i = 0; i < rdev->num_crtc; i++) {
-                if (save->crtc_enabled) {
+                if (save->crtc_enabled[i]) {
                         if (ASIC_IS_DCE6(rdev)) {
                                 tmp = RREG32(EVERGREEN_CRTC_BLANK_CONTROL + crtc_offsets[i]);
                                 tmp |= EVERGREEN_CRTC_BLANK_DATA_EN;
diff --git a/drivers/gpu/drm/radeon/evergreen_cs.c b/drivers/gpu/drm/radeon/evergreen_cs.c
index 30271b641913..c042e497e450 100644
--- a/drivers/gpu/drm/radeon/evergreen_cs.c
+++ b/drivers/gpu/drm/radeon/evergreen_cs.c
@@ -264,7 +264,7 @@ static int evergreen_surface_check_2d(struct radeon_cs_parser *p,
         /* macro tile width & height */
         palign = (8 * surf->bankw * track->npipes) * surf->mtilea;
         halign = (8 * surf->bankh * surf->nbanks) / surf->mtilea;
-        mtileb = (palign / 8) * (halign / 8) * tileb;;
+        mtileb = (palign / 8) * (halign / 8) * tileb;
         mtile_pr = surf->nbx / palign;
         mtile_ps = (mtile_pr * surf->nby) / halign;
         surf->layer_size = mtile_ps * mtileb * slice_pt;
@@ -2725,6 +2725,9 @@ static bool evergreen_vm_reg_valid(u32 reg)
         /* check config regs */
         switch (reg) {
         case GRBM_GFX_INDEX:
+        case CP_STRMOUT_CNTL:
+        case CP_COHER_CNTL:
+        case CP_COHER_SIZE:
         case VGT_VTX_VECT_EJECT_REG:
         case VGT_CACHE_INVALIDATION:
         case VGT_GS_VERTEX_REUSE:
diff --git a/drivers/gpu/drm/radeon/evergreend.h b/drivers/gpu/drm/radeon/evergreend.h
index df542f1a5dfb..2bc0f6a1b428 100644
--- a/drivers/gpu/drm/radeon/evergreend.h
+++ b/drivers/gpu/drm/radeon/evergreend.h
@@ -91,6 +91,10 @@
 #define         FB_READ_EN                                      (1 << 0)
 #define         FB_WRITE_EN                                     (1 << 1)
 
+#define CP_STRMOUT_CNTL                                 0x84FC
+
+#define CP_COHER_CNTL                                   0x85F0
+#define CP_COHER_SIZE                                   0x85F4
 #define CP_COHER_BASE                                   0x85F8
 #define CP_STALLED_STAT1                        0x8674
 #define CP_STALLED_STAT2                        0x8678
diff --git a/drivers/gpu/drm/radeon/radeon_atpx_handler.c b/drivers/gpu/drm/radeon/radeon_atpx_handler.c
index 37f6a907aea4..15f5ded65e0c 100644
--- a/drivers/gpu/drm/radeon/radeon_atpx_handler.c
+++ b/drivers/gpu/drm/radeon/radeon_atpx_handler.c
@@ -352,9 +352,9 @@ static int radeon_atpx_switchto(enum vga_switcheroo_client_id id)
 }
 
 /**
- * radeon_atpx_switchto - switch to the requested GPU
+ * radeon_atpx_power_state - power down/up the requested GPU
  *
- * @id: GPU to switch to
+ * @id: GPU to power down/up
  * @state: requested power state (0 = off, 1 = on)
  *
  * Execute the necessary ATPX function to power down/up the discrete GPU
diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c b/drivers/gpu/drm/radeon/radeon_connectors.c
index 67cfc1795ecd..b884c362a8c2 100644
--- a/drivers/gpu/drm/radeon/radeon_connectors.c
+++ b/drivers/gpu/drm/radeon/radeon_connectors.c
@@ -941,7 +941,7 @@ radeon_dvi_detect(struct drm_connector *connector, bool force)
         struct drm_mode_object *obj;
         int i;
         enum drm_connector_status ret = connector_status_disconnected;
-        bool dret = false;
+        bool dret = false, broken_edid = false;
 
         if (!force && radeon_check_hpd_status_unchanged(connector))
                 return connector->status;
@@ -965,6 +965,9 @@ radeon_dvi_detect(struct drm_connector *connector, bool force)
                                 ret = connector_status_disconnected;
                                 DRM_ERROR("%s: detected RS690 floating bus bug, stopping ddc detect\n", drm_get_connector_name(connector));
                                 radeon_connector->ddc_bus = NULL;
+                        } else {
+                                ret = connector_status_connected;
+                                broken_edid = true; /* defer use_digital to later */
                         }
                 } else {
                         radeon_connector->use_digital = !!(radeon_connector->edid->input & DRM_EDID_INPUT_DIGITAL);
@@ -1047,13 +1050,24 @@ radeon_dvi_detect(struct drm_connector *connector, bool force)
 
                         encoder_funcs = encoder->helper_private;
                         if (encoder_funcs->detect) {
-                                if (ret != connector_status_connected) {
-                                        ret = encoder_funcs->detect(encoder, connector);
-                                        if (ret == connector_status_connected) {
-                                                radeon_connector->use_digital = false;
+                                if (!broken_edid) {
+                                        if (ret != connector_status_connected) {
+                                                /* deal with analog monitors without DDC */
+                                                ret = encoder_funcs->detect(encoder, connector);
+                                                if (ret == connector_status_connected) {
+                                                        radeon_connector->use_digital = false;
+                                                }
+                                                if (ret != connector_status_disconnected)
+                                                        radeon_connector->detected_by_load = true;
                                         }
-                                        if (ret != connector_status_disconnected)
-                                                radeon_connector->detected_by_load = true;
+                                } else {
+                                        enum drm_connector_status lret;
+                                        /* assume digital unless load detected otherwise */
+                                        radeon_connector->use_digital = true;
+                                        lret = encoder_funcs->detect(encoder, connector);
+                                        DRM_DEBUG_KMS("load_detect %x returned: %x\n",encoder->encoder_type,lret);
+                                        if (lret == connector_status_connected)
+                                                radeon_connector->use_digital = false;
                                 }
                                 break;
                         }
diff --git a/drivers/gpu/drm/radeon/radeon_legacy_crtc.c b/drivers/gpu/drm/radeon/radeon_legacy_crtc.c
index 5677a424b585..6857cb4efb76 100644
--- a/drivers/gpu/drm/radeon/radeon_legacy_crtc.c
+++ b/drivers/gpu/drm/radeon/radeon_legacy_crtc.c
@@ -295,6 +295,7 @@ static void radeon_crtc_dpms(struct drm_crtc *crtc, int mode)
         struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
         struct drm_device *dev = crtc->dev;
         struct radeon_device *rdev = dev->dev_private;
+        uint32_t crtc_ext_cntl = 0;
         uint32_t mask;
 
         if (radeon_crtc->crtc_id)
@@ -307,6 +308,16 @@ static void radeon_crtc_dpms(struct drm_crtc *crtc, int mode)
                         RADEON_CRTC_VSYNC_DIS |
                         RADEON_CRTC_HSYNC_DIS);
 
+        /*
+         * On all dual CRTC GPUs this bit controls the CRTC of the primary DAC.
+         * Therefore it is set in the DAC DMPS function.
+         * This is different for GPU's with a single CRTC but a primary and a
+         * TV DAC: here it controls the single CRTC no matter where it is
+         * routed. Therefore we set it here.
+         */
+        if (rdev->flags & RADEON_SINGLE_CRTC)
+                crtc_ext_cntl = RADEON_CRTC_CRT_ON;
+        
         switch (mode) {
         case DRM_MODE_DPMS_ON:
                 radeon_crtc->enabled = true;
@@ -317,7 +328,7 @@ static void radeon_crtc_dpms(struct drm_crtc *crtc, int mode)
                 else {
                         WREG32_P(RADEON_CRTC_GEN_CNTL, RADEON_CRTC_EN, ~(RADEON_CRTC_EN |
                                                                          RADEON_CRTC_DISP_REQ_EN_B));
-                        WREG32_P(RADEON_CRTC_EXT_CNTL, 0, ~mask);
+                        WREG32_P(RADEON_CRTC_EXT_CNTL, crtc_ext_cntl, ~(mask | crtc_ext_cntl));
                 }
                 drm_vblank_post_modeset(dev, radeon_crtc->crtc_id);
                 radeon_crtc_load_lut(crtc);
@@ -331,7 +342,7 @@ static void radeon_crtc_dpms(struct drm_crtc *crtc, int mode)
                 else {
                         WREG32_P(RADEON_CRTC_GEN_CNTL, RADEON_CRTC_DISP_REQ_EN_B, ~(RADEON_CRTC_EN |
                                                                                     RADEON_CRTC_DISP_REQ_EN_B));
-                        WREG32_P(RADEON_CRTC_EXT_CNTL, mask, ~mask);
+                        WREG32_P(RADEON_CRTC_EXT_CNTL, mask, ~(mask | crtc_ext_cntl));
                 }
                 radeon_crtc->enabled = false;
                 /* adjust pm to dpms changes AFTER disabling crtcs */
diff --git a/drivers/gpu/drm/radeon/radeon_legacy_encoders.c b/drivers/gpu/drm/radeon/radeon_legacy_encoders.c
index 0063df9d166d..f5ba2241dacc 100644
--- a/drivers/gpu/drm/radeon/radeon_legacy_encoders.c
+++ b/drivers/gpu/drm/radeon/radeon_legacy_encoders.c
@@ -537,7 +537,9 @@ static void radeon_legacy_primary_dac_dpms(struct drm_encoder *encoder, int mode
                 break;
         }
 
-        WREG32(RADEON_CRTC_EXT_CNTL, crtc_ext_cntl);
+        /* handled in radeon_crtc_dpms() */
+        if (!(rdev->flags & RADEON_SINGLE_CRTC))
+                WREG32(RADEON_CRTC_EXT_CNTL, crtc_ext_cntl);
         WREG32(RADEON_DAC_CNTL, dac_cntl);
         WREG32(RADEON_DAC_MACRO_CNTL, dac_macro_cntl);
 
@@ -662,6 +664,8 @@ static enum drm_connector_status radeon_legacy_primary_dac_detect(struct drm_enc
 
         if (ASIC_IS_R300(rdev))
                 tmp |= (0x1b6 << RADEON_DAC_FORCE_DATA_SHIFT);
+        else if (ASIC_IS_RV100(rdev))
+                tmp |= (0x1ac << RADEON_DAC_FORCE_DATA_SHIFT);
         else
                 tmp |= (0x180 << RADEON_DAC_FORCE_DATA_SHIFT);
 
@@ -671,6 +675,7 @@ static enum drm_connector_status radeon_legacy_primary_dac_detect(struct drm_enc
         tmp |= RADEON_DAC_RANGE_CNTL_PS2 | RADEON_DAC_CMP_EN;
         WREG32(RADEON_DAC_CNTL, tmp);
 
+        tmp = dac_macro_cntl;
         tmp &= ~(RADEON_DAC_PDWN_R |
                  RADEON_DAC_PDWN_G |
                  RADEON_DAC_PDWN_B);
@@ -1092,7 +1097,8 @@ static void radeon_legacy_tv_dac_dpms(struct drm_encoder *encoder, int mode)
         } else {
                 if (is_tv)
                         WREG32(RADEON_TV_MASTER_CNTL, tv_master_cntl);
-                else
+                /* handled in radeon_crtc_dpms() */
+                else if (!(rdev->flags & RADEON_SINGLE_CRTC))
                         WREG32(RADEON_CRTC2_GEN_CNTL, crtc2_gen_cntl);
                 WREG32(RADEON_TV_DAC_CNTL, tv_dac_cntl);
         }
@@ -1416,13 +1422,104 @@ static bool radeon_legacy_tv_detect(struct drm_encoder *encoder,
         return found;
 }
 
+static bool radeon_legacy_ext_dac_detect(struct drm_encoder *encoder,
+                                         struct drm_connector *connector)
+{
+        struct drm_device *dev = encoder->dev;
+        struct radeon_device *rdev = dev->dev_private;
+        uint32_t gpio_monid, fp2_gen_cntl, disp_output_cntl, crtc2_gen_cntl;
+        uint32_t disp_lin_trans_grph_a, disp_lin_trans_grph_b, disp_lin_trans_grph_c;
+        uint32_t disp_lin_trans_grph_d, disp_lin_trans_grph_e, disp_lin_trans_grph_f;
+        uint32_t tmp, crtc2_h_total_disp, crtc2_v_total_disp;
+        uint32_t crtc2_h_sync_strt_wid, crtc2_v_sync_strt_wid;
+        bool found = false;
+        int i;
+
+        /* save the regs we need */
+        gpio_monid = RREG32(RADEON_GPIO_MONID);
+        fp2_gen_cntl = RREG32(RADEON_FP2_GEN_CNTL);
+        disp_output_cntl = RREG32(RADEON_DISP_OUTPUT_CNTL);
+        crtc2_gen_cntl = RREG32(RADEON_CRTC2_GEN_CNTL);
+        disp_lin_trans_grph_a = RREG32(RADEON_DISP_LIN_TRANS_GRPH_A);
+        disp_lin_trans_grph_b = RREG32(RADEON_DISP_LIN_TRANS_GRPH_B);
+        disp_lin_trans_grph_c = RREG32(RADEON_DISP_LIN_TRANS_GRPH_C);
+        disp_lin_trans_grph_d = RREG32(RADEON_DISP_LIN_TRANS_GRPH_D);
+        disp_lin_trans_grph_e = RREG32(RADEON_DISP_LIN_TRANS_GRPH_E);
+        disp_lin_trans_grph_f = RREG32(RADEON_DISP_LIN_TRANS_GRPH_F);
+        crtc2_h_total_disp = RREG32(RADEON_CRTC2_H_TOTAL_DISP);
+        crtc2_v_total_disp = RREG32(RADEON_CRTC2_V_TOTAL_DISP);
+        crtc2_h_sync_strt_wid = RREG32(RADEON_CRTC2_H_SYNC_STRT_WID);
+        crtc2_v_sync_strt_wid = RREG32(RADEON_CRTC2_V_SYNC_STRT_WID);
+
+        tmp = RREG32(RADEON_GPIO_MONID);
+        tmp &= ~RADEON_GPIO_A_0;
+        WREG32(RADEON_GPIO_MONID, tmp);
+
+        WREG32(RADEON_FP2_GEN_CNTL, (RADEON_FP2_ON |
+                                     RADEON_FP2_PANEL_FORMAT |
+                                     R200_FP2_SOURCE_SEL_TRANS_UNIT |
+                                     RADEON_FP2_DVO_EN |
+                                     R200_FP2_DVO_RATE_SEL_SDR));
+
+        WREG32(RADEON_DISP_OUTPUT_CNTL, (RADEON_DISP_DAC_SOURCE_RMX |
+                                         RADEON_DISP_TRANS_MATRIX_GRAPHICS));
+
+        WREG32(RADEON_CRTC2_GEN_CNTL, (RADEON_CRTC2_EN |
+                                       RADEON_CRTC2_DISP_REQ_EN_B));
+
+        WREG32(RADEON_DISP_LIN_TRANS_GRPH_A, 0x00000000);
+        WREG32(RADEON_DISP_LIN_TRANS_GRPH_B, 0x000003f0);
+        WREG32(RADEON_DISP_LIN_TRANS_GRPH_C, 0x00000000);
+        WREG32(RADEON_DISP_LIN_TRANS_GRPH_D, 0x000003f0);
+        WREG32(RADEON_DISP_LIN_TRANS_GRPH_E, 0x00000000);
+        WREG32(RADEON_DISP_LIN_TRANS_GRPH_F, 0x000003f0);
+
+        WREG32(RADEON_CRTC2_H_TOTAL_DISP, 0x01000008);
+        WREG32(RADEON_CRTC2_H_SYNC_STRT_WID, 0x00000800);
+        WREG32(RADEON_CRTC2_V_TOTAL_DISP, 0x00080001);
+        WREG32(RADEON_CRTC2_V_SYNC_STRT_WID, 0x00000080);
+
+        for (i = 0; i < 200; i++) {
+                tmp = RREG32(RADEON_GPIO_MONID);
+                if (tmp & RADEON_GPIO_Y_0)
+                        found = true;
+
+                if (found)
+                        break;
+
+                if (!drm_can_sleep())
+                        mdelay(1);
+                else
+                        msleep(1);
+        }
+
+        /* restore the regs we used */
+        WREG32(RADEON_DISP_LIN_TRANS_GRPH_A, disp_lin_trans_grph_a);
+        WREG32(RADEON_DISP_LIN_TRANS_GRPH_B, disp_lin_trans_grph_b);
+        WREG32(RADEON_DISP_LIN_TRANS_GRPH_C, disp_lin_trans_grph_c);
+        WREG32(RADEON_DISP_LIN_TRANS_GRPH_D, disp_lin_trans_grph_d);
+        WREG32(RADEON_DISP_LIN_TRANS_GRPH_E, disp_lin_trans_grph_e);
+        WREG32(RADEON_DISP_LIN_TRANS_GRPH_F, disp_lin_trans_grph_f);
+        WREG32(RADEON_CRTC2_H_TOTAL_DISP, crtc2_h_total_disp);
+        WREG32(RADEON_CRTC2_V_TOTAL_DISP, crtc2_v_total_disp);
+        WREG32(RADEON_CRTC2_H_SYNC_STRT_WID, crtc2_h_sync_strt_wid);
+        WREG32(RADEON_CRTC2_V_SYNC_STRT_WID, crtc2_v_sync_strt_wid);
+        WREG32(RADEON_CRTC2_GEN_CNTL, crtc2_gen_cntl);
+        WREG32(RADEON_DISP_OUTPUT_CNTL, disp_output_cntl);
+        WREG32(RADEON_FP2_GEN_CNTL, fp2_gen_cntl);
+        WREG32(RADEON_GPIO_MONID, gpio_monid);
+
+        return found;
+}
+
 static enum drm_connector_status radeon_legacy_tv_dac_detect(struct drm_encoder *encoder,
                                                              struct drm_connector *connector)
 {
         struct drm_device *dev = encoder->dev;
         struct radeon_device *rdev = dev->dev_private;
-        uint32_t crtc2_gen_cntl, tv_dac_cntl, dac_cntl2, dac_ext_cntl;
-        uint32_t disp_hw_debug, disp_output_cntl, gpiopad_a, pixclks_cntl, tmp;
+        uint32_t crtc2_gen_cntl = 0, tv_dac_cntl, dac_cntl2, dac_ext_cntl;
+        uint32_t gpiopad_a = 0, pixclks_cntl, tmp;
+        uint32_t disp_output_cntl = 0, disp_hw_debug = 0, crtc_ext_cntl = 0;
         enum drm_connector_status found = connector_status_disconnected;
         struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
         struct radeon_encoder_tv_dac *tv_dac = radeon_encoder->enc_priv;
@@ -1459,12 +1556,27 @@ static enum drm_connector_status radeon_legacy_tv_dac_detect(struct drm_encoder
                 return connector_status_disconnected;
         }
 
+        /* R200 uses an external DAC for secondary DAC */
+        if (rdev->family == CHIP_R200) {
+                if (radeon_legacy_ext_dac_detect(encoder, connector))
+                        found = connector_status_connected;
+                return found;
+        }
+
         /* save the regs we need */
         pixclks_cntl = RREG32_PLL(RADEON_PIXCLKS_CNTL);
-        gpiopad_a = ASIC_IS_R300(rdev) ? RREG32(RADEON_GPIOPAD_A) : 0;
-        disp_output_cntl = ASIC_IS_R300(rdev) ? RREG32(RADEON_DISP_OUTPUT_CNTL) : 0;
-        disp_hw_debug = ASIC_IS_R300(rdev) ? 0 : RREG32(RADEON_DISP_HW_DEBUG);
-        crtc2_gen_cntl = RREG32(RADEON_CRTC2_GEN_CNTL);
+
+        if (rdev->flags & RADEON_SINGLE_CRTC) {
+                crtc_ext_cntl = RREG32(RADEON_CRTC_EXT_CNTL);
+        } else {
+                if (ASIC_IS_R300(rdev)) {
+                        gpiopad_a = RREG32(RADEON_GPIOPAD_A);
+                        disp_output_cntl = RREG32(RADEON_DISP_OUTPUT_CNTL);
+                } else {
+                        disp_hw_debug = RREG32(RADEON_DISP_HW_DEBUG);
+                }
+                crtc2_gen_cntl = RREG32(RADEON_CRTC2_GEN_CNTL);
+        }
         tv_dac_cntl = RREG32(RADEON_TV_DAC_CNTL);
         dac_ext_cntl = RREG32(RADEON_DAC_EXT_CNTL);
         dac_cntl2 = RREG32(RADEON_DAC_CNTL2);
@@ -1473,22 +1585,24 @@ static enum drm_connector_status radeon_legacy_tv_dac_detect(struct drm_encoder
                                | RADEON_PIX2CLK_DAC_ALWAYS_ONb);
         WREG32_PLL(RADEON_PIXCLKS_CNTL, tmp);
 
-        if (ASIC_IS_R300(rdev))
-                WREG32_P(RADEON_GPIOPAD_A, 1, ~1);
-
-        tmp = crtc2_gen_cntl & ~RADEON_CRTC2_PIX_WIDTH_MASK;
-        tmp |= RADEON_CRTC2_CRT2_ON |
-                (2 << RADEON_CRTC2_PIX_WIDTH_SHIFT);
-
-        WREG32(RADEON_CRTC2_GEN_CNTL, tmp);
-
-        if (ASIC_IS_R300(rdev)) {
-                tmp = disp_output_cntl & ~RADEON_DISP_TVDAC_SOURCE_MASK;
-                tmp |= RADEON_DISP_TVDAC_SOURCE_CRTC2;
-                WREG32(RADEON_DISP_OUTPUT_CNTL, tmp);
+        if (rdev->flags & RADEON_SINGLE_CRTC) {
+                tmp = crtc_ext_cntl | RADEON_CRTC_CRT_ON;
+                WREG32(RADEON_CRTC_EXT_CNTL, tmp);
         } else {
-                tmp = disp_hw_debug & ~RADEON_CRT2_DISP1_SEL;
-                WREG32(RADEON_DISP_HW_DEBUG, tmp);
+                tmp = crtc2_gen_cntl & ~RADEON_CRTC2_PIX_WIDTH_MASK;
+                tmp |= RADEON_CRTC2_CRT2_ON |
+                        (2 << RADEON_CRTC2_PIX_WIDTH_SHIFT);
+                WREG32(RADEON_CRTC2_GEN_CNTL, tmp);
+
+                if (ASIC_IS_R300(rdev)) {
+                        WREG32_P(RADEON_GPIOPAD_A, 1, ~1);
+                        tmp = disp_output_cntl & ~RADEON_DISP_TVDAC_SOURCE_MASK;
+                        tmp |= RADEON_DISP_TVDAC_SOURCE_CRTC2;
+                        WREG32(RADEON_DISP_OUTPUT_CNTL, tmp);
+                } else {
+                        tmp = disp_hw_debug & ~RADEON_CRT2_DISP1_SEL;
+                        WREG32(RADEON_DISP_HW_DEBUG, tmp);
+                }
         }
 
         tmp = RADEON_TV_DAC_NBLANK |
@@ -1530,14 +1644,19 @@ static enum drm_connector_status radeon_legacy_tv_dac_detect(struct drm_encoder
         WREG32(RADEON_DAC_CNTL2, dac_cntl2);
         WREG32(RADEON_DAC_EXT_CNTL, dac_ext_cntl);
         WREG32(RADEON_TV_DAC_CNTL, tv_dac_cntl);
-        WREG32(RADEON_CRTC2_GEN_CNTL, crtc2_gen_cntl);
 
-        if (ASIC_IS_R300(rdev)) {
-                WREG32(RADEON_DISP_OUTPUT_CNTL, disp_output_cntl);
-                WREG32_P(RADEON_GPIOPAD_A, gpiopad_a, ~1);
+        if (rdev->flags & RADEON_SINGLE_CRTC) {
+                WREG32(RADEON_CRTC_EXT_CNTL, crtc_ext_cntl);
         } else {
-                WREG32(RADEON_DISP_HW_DEBUG, disp_hw_debug);
+                WREG32(RADEON_CRTC2_GEN_CNTL, crtc2_gen_cntl);
+                if (ASIC_IS_R300(rdev)) {
+                        WREG32(RADEON_DISP_OUTPUT_CNTL, disp_output_cntl);
+                        WREG32_P(RADEON_GPIOPAD_A, gpiopad_a, ~1);
+                } else {
+                        WREG32(RADEON_DISP_HW_DEBUG, disp_hw_debug);
+                }
         }
+
         WREG32_PLL(RADEON_PIXCLKS_CNTL, pixclks_cntl);
 
         return found;
diff --git a/drivers/gpu/drm/radeon/si.c b/drivers/gpu/drm/radeon/si.c
index b0db712060fb..4422d630b33b 100644
--- a/drivers/gpu/drm/radeon/si.c
+++ b/drivers/gpu/drm/radeon/si.c
@@ -2474,6 +2474,7 @@ static bool si_vm_reg_valid(u32 reg)
         /* check config regs */
         switch (reg) {
         case GRBM_GFX_INDEX:
+        case CP_STRMOUT_CNTL:
         case VGT_VTX_VECT_EJECT_REG:
         case VGT_CACHE_INVALIDATION:
         case VGT_ESGS_RING_SIZE:
diff --git a/drivers/gpu/drm/radeon/sid.h b/drivers/gpu/drm/radeon/sid.h
index 7d2a20e56577..a8871afc5b4e 100644
--- a/drivers/gpu/drm/radeon/sid.h
+++ b/drivers/gpu/drm/radeon/sid.h
@@ -424,6 +424,7 @@
 #       define RDERR_INT_ENABLE                         (1 << 0)
 #       define GUI_IDLE_INT_ENABLE                      (1 << 19)
 
+#define CP_STRMOUT_CNTL                                 0x84FC
 #define SCRATCH_REG0                                    0x8500
 #define SCRATCH_REG1                                    0x8504
 #define SCRATCH_REG2                                    0x8508
diff --git a/drivers/gpu/drm/ttm/ttm_page_alloc.c b/drivers/gpu/drm/ttm/ttm_page_alloc.c
index 860dc4813e99..bd2a3b40cd12 100644
--- a/drivers/gpu/drm/ttm/ttm_page_alloc.c
+++ b/drivers/gpu/drm/ttm/ttm_page_alloc.c
@@ -749,7 +749,10 @@ static int ttm_get_pages(struct page **pages, unsigned npages, int flags,
         /* clear the pages coming from the pool if requested */
         if (flags & TTM_PAGE_FLAG_ZERO_ALLOC) {
                 list_for_each_entry(p, &plist, lru) {
-                        clear_page(page_address(p));
+                        if (PageHighMem(p))
+                                clear_highpage(p);
+                        else
+                                clear_page(page_address(p));
                 }
         }
 
diff --git a/drivers/gpu/drm/ttm/ttm_tt.c b/drivers/gpu/drm/ttm/ttm_tt.c
index bf8260133ea9..7d759a430294 100644
--- a/drivers/gpu/drm/ttm/ttm_tt.c
+++ b/drivers/gpu/drm/ttm/ttm_tt.c
@@ -308,9 +308,7 @@ int ttm_tt_swapin(struct ttm_tt *ttm)
                 if (unlikely(to_page == NULL))
                         goto out_err;
 
-                preempt_disable();
                 copy_highpage(to_page, from_page);
-                preempt_enable();
                 page_cache_release(from_page);
         }
 
@@ -358,9 +356,7 @@ int ttm_tt_swapout(struct ttm_tt *ttm, struct file *persistent_swap_storage)
                         ret = PTR_ERR(to_page);
                         goto out_err;
                 }
-                preempt_disable();
                 copy_highpage(to_page, from_page);
-                preempt_enable();
                 set_page_dirty(to_page);
                 mark_page_accessed(to_page);
                 page_cache_release(to_page);
diff --git a/drivers/gpu/drm/udl/udl_drv.h b/drivers/gpu/drm/udl/udl_drv.h
index fccd361f7b50..87aa5f5d3c88 100644
--- a/drivers/gpu/drm/udl/udl_drv.h
+++ b/drivers/gpu/drm/udl/udl_drv.h
@@ -104,7 +104,7 @@ udl_fb_user_fb_create(struct drm_device *dev,
 
 int udl_render_hline(struct drm_device *dev, int bpp, struct urb **urb_ptr,
                      const char *front, char **urb_buf_ptr,
-                     u32 byte_offset, u32 byte_width,
+                     u32 byte_offset, u32 device_byte_offset, u32 byte_width,
                      int *ident_ptr, int *sent_ptr);
 
 int udl_dumb_create(struct drm_file *file_priv,
diff --git a/drivers/gpu/drm/udl/udl_fb.c b/drivers/gpu/drm/udl/udl_fb.c
index 69a2b16f42a6..d4ab3beaada0 100644
--- a/drivers/gpu/drm/udl/udl_fb.c
+++ b/drivers/gpu/drm/udl/udl_fb.c
@@ -114,9 +114,10 @@ static void udlfb_dpy_deferred_io(struct fb_info *info,
         list_for_each_entry(cur, &fbdefio->pagelist, lru) {
 
                 if (udl_render_hline(dev, (ufbdev->ufb.base.bits_per_pixel / 8),
-                                  &urb, (char *) info->fix.smem_start,
-                                  &cmd, cur->index << PAGE_SHIFT,
-                                  PAGE_SIZE, &bytes_identical, &bytes_sent))
+                                     &urb, (char *) info->fix.smem_start,
+                                     &cmd, cur->index << PAGE_SHIFT,
+                                     cur->index << PAGE_SHIFT,
+                                     PAGE_SIZE, &bytes_identical, &bytes_sent))
                         goto error;
                 bytes_rendered += PAGE_SIZE;
         }
@@ -187,10 +188,11 @@ int udl_handle_damage(struct udl_framebuffer *fb, int x, int y,
         for (i = y; i < y + height ; i++) {
                 const int line_offset = fb->base.pitches[0] * i;
                 const int byte_offset = line_offset + (x * bpp);
-
+                const int dev_byte_offset = (fb->base.width * bpp * i) + (x * bpp);
                 if (udl_render_hline(dev, bpp, &urb,
                                      (char *) fb->obj->vmapping,
-                                     &cmd, byte_offset, width * bpp,
+                                     &cmd, byte_offset, dev_byte_offset,
+                                     width * bpp,
                                      &bytes_identical, &bytes_sent))
                         goto error;
         }
diff --git a/drivers/gpu/drm/udl/udl_transfer.c b/drivers/gpu/drm/udl/udl_transfer.c
index dc095526ffb7..142fee5f983f 100644
--- a/drivers/gpu/drm/udl/udl_transfer.c
+++ b/drivers/gpu/drm/udl/udl_transfer.c
@@ -213,11 +213,12 @@ static void udl_compress_hline16(
  */
 int udl_render_hline(struct drm_device *dev, int bpp, struct urb **urb_ptr,
                      const char *front, char **urb_buf_ptr,
-                     u32 byte_offset, u32 byte_width,
+                     u32 byte_offset, u32 device_byte_offset,
+                     u32 byte_width,
                      int *ident_ptr, int *sent_ptr)
 {
         const u8 *line_start, *line_end, *next_pixel;
-        u32 base16 = 0 + (byte_offset / bpp) * 2;
+        u32 base16 = 0 + (device_byte_offset / bpp) * 2;
         struct urb *urb = *urb_ptr;
         u8 *cmd = *urb_buf_ptr;
         u8 *cmd_end = (u8 *) urb->transfer_buffer + urb->transfer_buffer_length;
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_dmabuf.c b/drivers/gpu/drm/vmwgfx/vmwgfx_dmabuf.c
index 3ce68a2e312d..d1498bfd7873 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_dmabuf.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_dmabuf.c
@@ -306,7 +306,7 @@ void vmw_bo_pin(struct ttm_buffer_object *bo, bool pin)
 
         BUG_ON(!atomic_read(&bo->reserved));
         BUG_ON(old_mem_type != TTM_PL_VRAM &&
-               old_mem_type != VMW_PL_FLAG_GMR);
+               old_mem_type != VMW_PL_GMR);
 
         pl_flags = TTM_PL_FLAG_VRAM | VMW_PL_FLAG_GMR | TTM_PL_FLAG_CACHED;
         if (pin)
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
index ed3c1e7ddde9..2dd185e42f21 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
@@ -1098,6 +1098,11 @@ static void vmw_pm_complete(struct device *kdev)
         struct drm_device *dev = pci_get_drvdata(pdev);
         struct vmw_private *dev_priv = vmw_priv(dev);
 
+        mutex_lock(&dev_priv->hw_mutex);
+        vmw_write(dev_priv, SVGA_REG_ID, SVGA_ID_2);
+        (void) vmw_read(dev_priv, SVGA_REG_ID);
+        mutex_unlock(&dev_priv->hw_mutex);
+
         /**
          * Reclaim 3d reference held by fbdev and potentially
          * start fifo.
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c b/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c
index b07ca2e4d04b..7290811f89be 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c
@@ -110,6 +110,8 @@ int vmw_get_cap_3d_ioctl(struct drm_device *dev, void *data,
         memcpy_fromio(bounce, &fifo_mem[SVGA_FIFO_3D_CAPS], size);
 
         ret = copy_to_user(buffer, bounce, size);
+        if (ret)
+                ret = -EFAULT;
         vfree(bounce);
 
         if (unlikely(ret != 0))
diff --git a/drivers/hid/hid-microsoft.c b/drivers/hid/hid-microsoft.c
index f676c01bb471..6fcd466d0825 100644
--- a/drivers/hid/hid-microsoft.c
+++ b/drivers/hid/hid-microsoft.c
@@ -46,9 +46,9 @@ static __u8 *ms_report_fixup(struct hid_device *hdev, __u8 *rdesc,
                 rdesc[559] = 0x45;
         }
         /* the same as above (s/usage/physical/) */
-        if ((quirks & MS_RDESC_3K) && *rsize == 106 &&
-                        !memcmp((char []){ 0x19, 0x00, 0x29, 0xff },
-                                &rdesc[94], 4)) {
+        if ((quirks & MS_RDESC_3K) && *rsize == 106 && rdesc[94] == 0x19 &&
+                        rdesc[95] == 0x00 && rdesc[96] == 0x29 &&
+                        rdesc[97] == 0xff) {
                 rdesc[94] = 0x35;
                 rdesc[96] = 0x45;
         }
diff --git a/drivers/hid/hidraw.c b/drivers/hid/hidraw.c
index 17d15bb610d1..7c47fc3f7b2b 100644
--- a/drivers/hid/hidraw.c
+++ b/drivers/hid/hidraw.c
@@ -42,7 +42,6 @@ static struct cdev hidraw_cdev;
 static struct class *hidraw_class;
 static struct hidraw *hidraw_table[HIDRAW_MAX_DEVICES];
 static DEFINE_MUTEX(minors_lock);
-static void drop_ref(struct hidraw *hid, int exists_bit);
 
 static ssize_t hidraw_read(struct file *file, char __user *buffer, size_t count, loff_t *ppos)
 {
@@ -114,7 +113,7 @@ static ssize_t hidraw_send_report(struct file *file, const char __user *buffer,
         __u8 *buf;
         int ret = 0;
 
-        if (!hidraw_table[minor] || !hidraw_table[minor]->exist) {
+        if (!hidraw_table[minor]) {
                 ret = -ENODEV;
                 goto out;
         }
@@ -262,7 +261,7 @@ static int hidraw_open(struct inode *inode, struct file *file)
         }
 
         mutex_lock(&minors_lock);
-        if (!hidraw_table[minor] || !hidraw_table[minor]->exist) {
+        if (!hidraw_table[minor]) {
                 err = -ENODEV;
                 goto out_unlock;
         }
@@ -299,12 +298,36 @@ out:
 static int hidraw_release(struct inode * inode, struct file * file)
 {
         unsigned int minor = iminor(inode);
+        struct hidraw *dev;
         struct hidraw_list *list = file->private_data;
+        int ret;
+        int i;
+
+        mutex_lock(&minors_lock);
+        if (!hidraw_table[minor]) {
+                ret = -ENODEV;
+                goto unlock;
+        }
 
-        drop_ref(hidraw_table[minor], 0);
         list_del(&list->node);
+        dev = hidraw_table[minor];
+        if (!--dev->open) {
+                if (list->hidraw->exist) {
+                        hid_hw_power(dev->hid, PM_HINT_NORMAL);
+                        hid_hw_close(dev->hid);
+                } else {
+                        kfree(list->hidraw);
+                }
+        }
+
+        for (i = 0; i < HIDRAW_BUFFER_SIZE; ++i)
+                kfree(list->buffer[i].value);
         kfree(list);
-        return 0;
+        ret = 0;
+unlock:
+        mutex_unlock(&minors_lock);
+
+        return ret;
 }
 
 static long hidraw_ioctl(struct file *file, unsigned int cmd,
@@ -506,7 +529,21 @@ EXPORT_SYMBOL_GPL(hidraw_connect);
 void hidraw_disconnect(struct hid_device *hid)
 {
         struct hidraw *hidraw = hid->hidraw;
-        drop_ref(hidraw, 1);
+
+        mutex_lock(&minors_lock);
+        hidraw->exist = 0;
+
+        device_destroy(hidraw_class, MKDEV(hidraw_major, hidraw->minor));
+
+        hidraw_table[hidraw->minor] = NULL;
+
+        if (hidraw->open) {
+                hid_hw_close(hid);
+                wake_up_interruptible(&hidraw->wait);
+        } else {
+                kfree(hidraw);
+        }
+        mutex_unlock(&minors_lock);
 }
 EXPORT_SYMBOL_GPL(hidraw_disconnect);
 
@@ -555,23 +592,3 @@ void hidraw_exit(void)
         unregister_chrdev_region(dev_id, HIDRAW_MAX_DEVICES);
 
 }
-
-static void drop_ref(struct hidraw *hidraw, int exists_bit)
-{
-        mutex_lock(&minors_lock);
-        if (exists_bit) {
-                hid_hw_close(hidraw->hid);
-                hidraw->exist = 0;
-                if (hidraw->open)
-                        wake_up_interruptible(&hidraw->wait);
-        } else {
-                --hidraw->open;
-        }
-
-        if (!hidraw->open && !hidraw->exist) {
-                device_destroy(hidraw_class, MKDEV(hidraw_major, hidraw->minor));
-                hidraw_table[hidraw->minor] = NULL;
-                kfree(hidraw);
-        }
-        mutex_unlock(&minors_lock);
-}
diff --git a/drivers/hwmon/asb100.c b/drivers/hwmon/asb100.c
index a227be47149f..520e5bf4f76d 100644
--- a/drivers/hwmon/asb100.c
+++ b/drivers/hwmon/asb100.c
@@ -32,7 +32,7 @@
  * ASB100-A supports pwm1, while plain ASB100 does not.  There is no known
  * way for the driver to tell which one is there.
  *
- * Chip #vin    #fanin  #pwm    #temp   wchipid vendid  i2c     ISA
+ * Chip         #vin    #fanin  #pwm    #temp   wchipid vendid  i2c     ISA
  * asb100       7       3       1       4       0x31    0x0694  yes     no
  */
 
diff --git a/drivers/hwmon/w83627ehf.c b/drivers/hwmon/w83627ehf.c
index 1821b7423d5b..de3c7e04c3b5 100644
--- a/drivers/hwmon/w83627ehf.c
+++ b/drivers/hwmon/w83627ehf.c
@@ -2083,6 +2083,7 @@ static int __devinit w83627ehf_probe(struct platform_device *pdev)
         mutex_init(&data->lock);
         mutex_init(&data->update_lock);
         data->name = w83627ehf_device_names[sio_data->kind];
+        data->bank = 0xff;              /* Force initial bank selection */
         platform_set_drvdata(pdev, data);
 
         /* 627EHG and 627EHF have 10 voltage inputs; 627DHG and 667HG have 9 */
diff --git a/drivers/hwmon/w83627hf.c b/drivers/hwmon/w83627hf.c
index 5b1a6a666441..af1589908709 100644
--- a/drivers/hwmon/w83627hf.c
+++ b/drivers/hwmon/w83627hf.c
@@ -25,7 +25,7 @@
 /*
  * Supports following chips:
  *
- * Chip #vin    #fanin  #pwm    #temp   wchipid vendid  i2c     ISA
+ * Chip         #vin    #fanin  #pwm    #temp   wchipid vendid  i2c     ISA
  * w83627hf     9       3       2       3       0x20    0x5ca3  no      yes(LPC)
  * w83627thf    7       3       3       3       0x90    0x5ca3  no      yes(LPC)
  * w83637hf     7       3       3       3       0x80    0x5ca3  no      yes(LPC)
diff --git a/drivers/hwmon/w83781d.c b/drivers/hwmon/w83781d.c
index 5a5046d94c3e..20f11d31da40 100644
--- a/drivers/hwmon/w83781d.c
+++ b/drivers/hwmon/w83781d.c
@@ -24,7 +24,7 @@
 /*
  * Supports following chips:
  *
- * Chip #vin    #fanin  #pwm    #temp   wchipid vendid  i2c     ISA
+ * Chip         #vin    #fanin  #pwm    #temp   wchipid vendid  i2c     ISA
  * as99127f     7       3       0       3       0x31    0x12c3  yes     no
  * as99127f rev.2 (type_name = as99127f)        0x31    0x5ca3  yes     no
  * w83781d      7       3       0       3       0x10-1  0x5ca3  yes     yes
diff --git a/drivers/hwmon/w83791d.c b/drivers/hwmon/w83791d.c
index 39ab7bcc616e..ed397c645198 100644
--- a/drivers/hwmon/w83791d.c
+++ b/drivers/hwmon/w83791d.c
@@ -22,7 +22,7 @@
 /*
  * Supports following chips:
  *
- * Chip #vin    #fanin  #pwm    #temp   wchipid vendid  i2c     ISA
+ * Chip         #vin    #fanin  #pwm    #temp   wchipid vendid  i2c     ISA
  * w83791d      10      5       5       3       0x71    0x5ca3  yes     no
  *
  * The w83791d chip appears to be part way between the 83781d and the
diff --git a/drivers/hwmon/w83792d.c b/drivers/hwmon/w83792d.c
index 053645279f38..301942d08453 100644
--- a/drivers/hwmon/w83792d.c
+++ b/drivers/hwmon/w83792d.c
@@ -31,7 +31,7 @@
 /*
  * Supports following chips:
  *
- * Chip #vin    #fanin  #pwm    #temp   wchipid vendid  i2c     ISA
+ * Chip         #vin    #fanin  #pwm    #temp   wchipid vendid  i2c     ISA
  * w83792d      9       7       7       3       0x7a    0x5ca3  yes     no
  */
 
diff --git a/drivers/hwmon/w83l786ng.c b/drivers/hwmon/w83l786ng.c
index f0e8286c3c70..79710bcac2f7 100644
--- a/drivers/hwmon/w83l786ng.c
+++ b/drivers/hwmon/w83l786ng.c
@@ -20,7 +20,7 @@
 /*
  * Supports following chips:
  *
- * Chip #vin    #fanin  #pwm    #temp   wchipid vendid  i2c     ISA
+ * Chip         #vin    #fanin  #pwm    #temp   wchipid vendid  i2c     ISA
  * w83l786ng    3       2       2       2       0x7b    0x5ca3  yes     no
  */
 
diff --git a/drivers/i2c/busses/i2c-mxs.c b/drivers/i2c/busses/i2c-mxs.c
index 1f58197062cf..286ca1917820 100644
--- a/drivers/i2c/busses/i2c-mxs.c
+++ b/drivers/i2c/busses/i2c-mxs.c
@@ -1,7 +1,7 @@
 /*
  * Freescale MXS I2C bus driver
  *
- * Copyright (C) 2011 Wolfram Sang, Pengutronix e.K.
+ * Copyright (C) 2011-2012 Wolfram Sang, Pengutronix e.K.
  *
  * based on a (non-working) driver which was:
  *
@@ -35,10 +35,6 @@
 
 #define DRIVER_NAME "mxs-i2c"
 
-static bool use_pioqueue;
-module_param(use_pioqueue, bool, 0);
-MODULE_PARM_DESC(use_pioqueue, "Use PIOQUEUE mode for transfer instead of DMA");
-
 #define MXS_I2C_CTRL0           (0x00)
 #define MXS_I2C_CTRL0_SET       (0x04)
 
@@ -75,23 +71,6 @@ MODULE_PARM_DESC(use_pioqueue, "Use PIOQUEUE mode for transfer instead of DMA");
                                  MXS_I2C_CTRL1_SLAVE_STOP_IRQ | \
                                  MXS_I2C_CTRL1_SLAVE_IRQ)
 
-#define MXS_I2C_QUEUECTRL       (0x60)
-#define MXS_I2C_QUEUECTRL_SET   (0x64)
-#define MXS_I2C_QUEUECTRL_CLR   (0x68)
-
-#define MXS_I2C_QUEUECTRL_QUEUE_RUN             0x20
-#define MXS_I2C_QUEUECTRL_PIO_QUEUE_MODE        0x04
-
-#define MXS_I2C_QUEUESTAT       (0x70)
-#define MXS_I2C_QUEUESTAT_RD_QUEUE_EMPTY        0x00002000
-#define MXS_I2C_QUEUESTAT_WRITE_QUEUE_CNT_MASK  0x0000001F
-
-#define MXS_I2C_QUEUECMD        (0x80)
-
-#define MXS_I2C_QUEUEDATA       (0x90)
-
-#define MXS_I2C_DATA            (0xa0)
-
 
 #define MXS_CMD_I2C_SELECT      (MXS_I2C_CTRL0_RETAIN_CLOCK |   \
                                  MXS_I2C_CTRL0_PRE_SEND_START | \
@@ -153,7 +132,6 @@ struct mxs_i2c_dev {
         const struct mxs_i2c_speed_config *speed;
 
         /* DMA support components */
-        bool                            dma_mode;
         int                             dma_channel;
         struct dma_chan                 *dmach;
         struct mxs_dma_data             dma_data;
@@ -172,99 +150,6 @@ static void mxs_i2c_reset(struct mxs_i2c_dev *i2c)
         writel(i2c->speed->timing2, i2c->regs + MXS_I2C_TIMING2);
 
         writel(MXS_I2C_IRQ_MASK << 8, i2c->regs + MXS_I2C_CTRL1_SET);
-        if (i2c->dma_mode)
-                writel(MXS_I2C_QUEUECTRL_PIO_QUEUE_MODE,
-                        i2c->regs + MXS_I2C_QUEUECTRL_CLR);
-        else
-                writel(MXS_I2C_QUEUECTRL_PIO_QUEUE_MODE,
-                        i2c->regs + MXS_I2C_QUEUECTRL_SET);
-}
-
-static void mxs_i2c_pioq_setup_read(struct mxs_i2c_dev *i2c, u8 addr, int len,
-                                        int flags)
-{
-        u32 data;
-
-        writel(MXS_CMD_I2C_SELECT, i2c->regs + MXS_I2C_QUEUECMD);
-
-        data = (addr << 1) | I2C_SMBUS_READ;
-        writel(data, i2c->regs + MXS_I2C_DATA);
-
-        data = MXS_CMD_I2C_READ | MXS_I2C_CTRL0_XFER_COUNT(len) | flags;
-        writel(data, i2c->regs + MXS_I2C_QUEUECMD);
-}
-
-static void mxs_i2c_pioq_setup_write(struct mxs_i2c_dev *i2c,
-                                    u8 addr, u8 *buf, int len, int flags)
-{
-        u32 data;
-        int i, shifts_left;
-
-        data = MXS_CMD_I2C_WRITE | MXS_I2C_CTRL0_XFER_COUNT(len + 1) | flags;
-        writel(data, i2c->regs + MXS_I2C_QUEUECMD);
-
-        /*
-         * We have to copy the slave address (u8) and buffer (arbitrary number
-         * of u8) into the data register (u32). To achieve that, the u8 are put
-         * into the MSBs of 'data' which is then shifted for the next u8. When
-         * appropriate, 'data' is written to MXS_I2C_DATA. So, the first u32
-         * looks like this:
-         *
-         *  3          2          1          0
-         * 10987654|32109876|54321098|76543210
-         * --------+--------+--------+--------
-         * buffer+2|buffer+1|buffer+0|slave_addr
-         */
-
-        data = ((addr << 1) | I2C_SMBUS_WRITE) << 24;
-
-        for (i = 0; i < len; i++) {
-                data >>= 8;
-                data |= buf[i] << 24;
-                if ((i & 3) == 2)
-                        writel(data, i2c->regs + MXS_I2C_DATA);
-        }
-
-        /* Write out the remaining bytes if any */
-        shifts_left = 24 - (i & 3) * 8;
-        if (shifts_left)
-                writel(data >> shifts_left, i2c->regs + MXS_I2C_DATA);
-}
-
-/*
- * TODO: should be replaceable with a waitqueue and RD_QUEUE_IRQ (setting the
- * rd_threshold to 1). Couldn't get this to work, though.
- */
-static int mxs_i2c_wait_for_data(struct mxs_i2c_dev *i2c)
-{
-        unsigned long timeout = jiffies + msecs_to_jiffies(1000);
-
-        while (readl(i2c->regs + MXS_I2C_QUEUESTAT)
-                        & MXS_I2C_QUEUESTAT_RD_QUEUE_EMPTY) {
-                        if (time_after(jiffies, timeout))
-                                return -ETIMEDOUT;
-                        cond_resched();
-        }
-
-        return 0;
-}
-
-static int mxs_i2c_finish_read(struct mxs_i2c_dev *i2c, u8 *buf, int len)
-{
-        u32 uninitialized_var(data);
-        int i;
-
-        for (i = 0; i < len; i++) {
-                if ((i & 3) == 0) {
-                        if (mxs_i2c_wait_for_data(i2c))
-                                return -ETIMEDOUT;
-                        data = readl(i2c->regs + MXS_I2C_QUEUEDATA);
-                }
-                buf[i] = data & 0xff;
-                data >>= 8;
-        }
-
-        return 0;
 }
 
 static void mxs_i2c_dma_finish(struct mxs_i2c_dev *i2c)
@@ -432,39 +317,17 @@ static int mxs_i2c_xfer_msg(struct i2c_adapter *adap, struct i2c_msg *msg,
         init_completion(&i2c->cmd_complete);
         i2c->cmd_err = 0;
 
-        if (i2c->dma_mode) {
-                ret = mxs_i2c_dma_setup_xfer(adap, msg, flags);
-                if (ret)
-                        return ret;
-        } else {
-                if (msg->flags & I2C_M_RD) {
-                        mxs_i2c_pioq_setup_read(i2c, msg->addr,
-                                                msg->len, flags);
-                } else {
-                        mxs_i2c_pioq_setup_write(i2c, msg->addr, msg->buf,
-                                                msg->len, flags);
-                }
-
-                writel(MXS_I2C_QUEUECTRL_QUEUE_RUN,
-                        i2c->regs + MXS_I2C_QUEUECTRL_SET);
-        }
+        ret = mxs_i2c_dma_setup_xfer(adap, msg, flags);
+        if (ret)
+                return ret;
 
         ret = wait_for_completion_timeout(&i2c->cmd_complete,
                                                 msecs_to_jiffies(1000));
         if (ret == 0)
                 goto timeout;
 
-        if (!i2c->dma_mode && !i2c->cmd_err && (msg->flags & I2C_M_RD)) {
-                ret = mxs_i2c_finish_read(i2c, msg->buf, msg->len);
-                if (ret)
-                        goto timeout;
-        }
-
         if (i2c->cmd_err == -ENXIO)
                 mxs_i2c_reset(i2c);
-        else
-                writel(MXS_I2C_QUEUECTRL_QUEUE_RUN,
-                                i2c->regs + MXS_I2C_QUEUECTRL_CLR);
 
         dev_dbg(i2c->dev, "Done with err=%d\n", i2c->cmd_err);
 
@@ -472,8 +335,7 @@ static int mxs_i2c_xfer_msg(struct i2c_adapter *adap, struct i2c_msg *msg,
 
 timeout:
         dev_dbg(i2c->dev, "Timeout!\n");
-        if (i2c->dma_mode)
-                mxs_i2c_dma_finish(i2c);
+        mxs_i2c_dma_finish(i2c);
         mxs_i2c_reset(i2c);
         return -ETIMEDOUT;
 }
@@ -502,7 +364,6 @@ static irqreturn_t mxs_i2c_isr(int this_irq, void *dev_id)
 {
         struct mxs_i2c_dev *i2c = dev_id;
         u32 stat = readl(i2c->regs + MXS_I2C_CTRL1) & MXS_I2C_IRQ_MASK;
-        bool is_last_cmd;
 
         if (!stat)
                 return IRQ_NONE;
@@ -515,14 +376,6 @@ static irqreturn_t mxs_i2c_isr(int this_irq, void *dev_id)
                 /* MXS_I2C_CTRL1_OVERSIZE_XFER_TERM_IRQ is only for slaves */
                 i2c->cmd_err = -EIO;
 
-        if (!i2c->dma_mode) {
-                is_last_cmd = (readl(i2c->regs + MXS_I2C_QUEUESTAT) &
-                        MXS_I2C_QUEUESTAT_WRITE_QUEUE_CNT_MASK) == 0;
-
-                if (is_last_cmd || i2c->cmd_err)
-                        complete(&i2c->cmd_complete);
-        }
-
         writel(stat, i2c->regs + MXS_I2C_CTRL1_CLR);
 
         return IRQ_HANDLED;
@@ -556,23 +409,14 @@ static int mxs_i2c_get_ofdata(struct mxs_i2c_dev *i2c)
         int ret;
 
         /*
-         * The MXS I2C DMA mode is prefered and enabled by default.
-         * The PIO mode is still supported, but should be used only
-         * for debuging purposes etc.
-         */
-        i2c->dma_mode = !use_pioqueue;
-        if (!i2c->dma_mode)
-                dev_info(dev, "Using PIOQUEUE mode for I2C transfers!\n");
-
-        /*
          * TODO: This is a temporary solution and should be changed
          * to use generic DMA binding later when the helpers get in.
          */
         ret = of_property_read_u32(node, "fsl,i2c-dma-channel",
                                    &i2c->dma_channel);
         if (ret) {
-                dev_warn(dev, "Failed to get DMA channel, using PIOQUEUE!\n");
-                i2c->dma_mode = 0;
+                dev_err(dev, "Failed to get DMA channel!\n");
+                return -ENODEV;
         }
 
         ret = of_property_read_u32(node, "clock-frequency", &speed);
@@ -634,15 +478,13 @@ static int __devinit mxs_i2c_probe(struct platform_device *pdev)
         }
 
         /* Setup the DMA */
-        if (i2c->dma_mode) {
-                dma_cap_zero(mask);
-                dma_cap_set(DMA_SLAVE, mask);
-                i2c->dma_data.chan_irq = dmairq;
-                i2c->dmach = dma_request_channel(mask, mxs_i2c_dma_filter, i2c);
-                if (!i2c->dmach) {
-                        dev_err(dev, "Failed to request dma\n");
-                        return -ENODEV;
-                }
+        dma_cap_zero(mask);
+        dma_cap_set(DMA_SLAVE, mask);
+        i2c->dma_data.chan_irq = dmairq;
+        i2c->dmach = dma_request_channel(mask, mxs_i2c_dma_filter, i2c);
+        if (!i2c->dmach) {
+                dev_err(dev, "Failed to request dma\n");
+                return -ENODEV;
         }
 
         platform_set_drvdata(pdev, i2c);
diff --git a/drivers/i2c/busses/i2c-nomadik.c b/drivers/i2c/busses/i2c-nomadik.c
index 698d7acb0f08..02c3115a2dfa 100644
--- a/drivers/i2c/busses/i2c-nomadik.c
+++ b/drivers/i2c/busses/i2c-nomadik.c
@@ -644,7 +644,11 @@ static int nmk_i2c_xfer(struct i2c_adapter *i2c_adap,
 
         pm_runtime_get_sync(&dev->adev->dev);
 
-        clk_enable(dev->clk);
+        status = clk_prepare_enable(dev->clk);
+        if (status) {
+                dev_err(&dev->adev->dev, "can't prepare_enable clock\n");
+                goto out_clk;
+        }
 
         status = init_hw(dev);
         if (status)
@@ -671,7 +675,8 @@ static int nmk_i2c_xfer(struct i2c_adapter *i2c_adap,
         }
 
 out:
-        clk_disable(dev->clk);
+        clk_disable_unprepare(dev->clk);
+out_clk:
         pm_runtime_put_sync(&dev->adev->dev);
 
         dev->busy = false;
diff --git a/drivers/i2c/busses/i2c-tegra.c b/drivers/i2c/busses/i2c-tegra.c
index f981ac4e6783..dcea77bf6f50 100644
--- a/drivers/i2c/busses/i2c-tegra.c
+++ b/drivers/i2c/busses/i2c-tegra.c
@@ -742,7 +742,7 @@ static int __devinit tegra_i2c_probe(struct platform_device *pdev)
         }
 
         ret = devm_request_irq(&pdev->dev, i2c_dev->irq,
-                        tegra_i2c_isr, 0, pdev->name, i2c_dev);
+                        tegra_i2c_isr, 0, dev_name(&pdev->dev), i2c_dev);
         if (ret) {
                 dev_err(&pdev->dev, "Failed to request irq %i\n", i2c_dev->irq);
                 return ret;
diff --git a/drivers/i2c/muxes/i2c-mux-pinctrl.c b/drivers/i2c/muxes/i2c-mux-pinctrl.c
index 5f097f309b9f..7fa5b24b16db 100644
--- a/drivers/i2c/muxes/i2c-mux-pinctrl.c
+++ b/drivers/i2c/muxes/i2c-mux-pinctrl.c
@@ -169,7 +169,7 @@ static int __devinit i2c_mux_pinctrl_probe(struct platform_device *pdev)
         mux->busses = devm_kzalloc(&pdev->dev,
                                    sizeof(mux->busses) * mux->pdata->bus_count,
                                    GFP_KERNEL);
-        if (!mux->states) {
+        if (!mux->busses) {
                 dev_err(&pdev->dev, "Cannot allocate busses\n");
                 ret = -ENOMEM;
                 goto err;
diff --git a/drivers/irqchip/irq-bcm2835.c b/drivers/irqchip/irq-bcm2835.c
index dc670ccc6978..16c78f1c5ef2 100644
--- a/drivers/irqchip/irq-bcm2835.c
+++ b/drivers/irqchip/irq-bcm2835.c
@@ -168,7 +168,8 @@ static int __init armctrl_of_init(struct device_node *node,
 }
 
 static struct of_device_id irq_of_match[] __initconst = {
-        { .compatible = "brcm,bcm2835-armctrl-ic", .data = armctrl_of_init }
+        { .compatible = "brcm,bcm2835-armctrl-ic", .data = armctrl_of_init },
+        { }
 };
 
 void __init bcm2835_init_irq(void)
diff --git a/drivers/leds/ledtrig-cpu.c b/drivers/leds/ledtrig-cpu.c
index b312056da14d..4239b3955ff0 100644
--- a/drivers/leds/ledtrig-cpu.c
+++ b/drivers/leds/ledtrig-cpu.c
@@ -33,8 +33,6 @@
 struct led_trigger_cpu {
         char name[MAX_NAME_LEN];
         struct led_trigger *_trig;
-        struct mutex lock;
-        int lock_is_inited;
 };
 
 static DEFINE_PER_CPU(struct led_trigger_cpu, cpu_trig);
@@ -50,12 +48,6 @@ void ledtrig_cpu(enum cpu_led_event ledevt)
 {
         struct led_trigger_cpu *trig = &__get_cpu_var(cpu_trig);
 
-        /* mutex lock should be initialized before calling mutex_call() */
-        if (!trig->lock_is_inited)
-                return;
-
-        mutex_lock(&trig->lock);
-
         /* Locate the correct CPU LED */
         switch (ledevt) {
         case CPU_LED_IDLE_END:
@@ -75,8 +67,6 @@ void ledtrig_cpu(enum cpu_led_event ledevt)
                 /* Will leave the LED as it is */
                 break;
         }
-
-        mutex_unlock(&trig->lock);
 }
 EXPORT_SYMBOL(ledtrig_cpu);
 
@@ -117,14 +107,9 @@ static int __init ledtrig_cpu_init(void)
         for_each_possible_cpu(cpu) {
                 struct led_trigger_cpu *trig = &per_cpu(cpu_trig, cpu);
 
-                mutex_init(&trig->lock);
-
                 snprintf(trig->name, MAX_NAME_LEN, "cpu%d", cpu);
 
-                mutex_lock(&trig->lock);
                 led_trigger_register_simple(trig->name, &trig->_trig);
-                trig->lock_is_inited = 1;
-                mutex_unlock(&trig->lock);
         }
 
         register_syscore_ops(&ledtrig_cpu_syscore_ops);
@@ -142,15 +127,9 @@ static void __exit ledtrig_cpu_exit(void)
         for_each_possible_cpu(cpu) {
                 struct led_trigger_cpu *trig = &per_cpu(cpu_trig, cpu);
 
-                mutex_lock(&trig->lock);
-
                 led_trigger_unregister_simple(trig->_trig);
                 trig->_trig = NULL;
                 memset(trig->name, 0, MAX_NAME_LEN);
-                trig->lock_is_inited = 0;
-
-                mutex_unlock(&trig->lock);
-                mutex_destroy(&trig->lock);
         }
 
         unregister_syscore_ops(&ledtrig_cpu_syscore_ops);
diff --git a/drivers/mmc/host/dw_mmc-exynos.c b/drivers/mmc/host/dw_mmc-exynos.c
index 660bbc528862..4d50da618166 100644
--- a/drivers/mmc/host/dw_mmc-exynos.c
+++ b/drivers/mmc/host/dw_mmc-exynos.c
@@ -208,7 +208,7 @@ static unsigned long exynos5250_dwmmc_caps[4] = {
         MMC_CAP_CMD23,
 };
 
-static struct dw_mci_drv_data exynos5250_drv_data = {
+static const struct dw_mci_drv_data exynos5250_drv_data = {
         .caps                   = exynos5250_dwmmc_caps,
         .init                   = dw_mci_exynos_priv_init,
         .setup_clock            = dw_mci_exynos_setup_clock,
@@ -220,14 +220,14 @@ static struct dw_mci_drv_data exynos5250_drv_data = {
 
 static const struct of_device_id dw_mci_exynos_match[] = {
         { .compatible = "samsung,exynos5250-dw-mshc",
-                        .data = (void *)&exynos5250_drv_data, },
+                        .data = &exynos5250_drv_data, },
         {},
 };
-MODULE_DEVICE_TABLE(of, dw_mci_pltfm_match);
+MODULE_DEVICE_TABLE(of, dw_mci_exynos_match);
 
 int dw_mci_exynos_probe(struct platform_device *pdev)
 {
-        struct dw_mci_drv_data *drv_data;
+        const struct dw_mci_drv_data *drv_data;
         const struct of_device_id *match;
 
         match = of_match_node(dw_mci_exynos_match, pdev->dev.of_node);
diff --git a/drivers/mmc/host/dw_mmc-pltfm.c b/drivers/mmc/host/dw_mmc-pltfm.c
index c960ca7ffbe6..917936bee5d5 100644
--- a/drivers/mmc/host/dw_mmc-pltfm.c
+++ b/drivers/mmc/host/dw_mmc-pltfm.c
@@ -24,7 +24,7 @@
 #include "dw_mmc.h"
 
 int dw_mci_pltfm_register(struct platform_device *pdev,
-                                struct dw_mci_drv_data *drv_data)
+                                const struct dw_mci_drv_data *drv_data)
 {
         struct dw_mci *host;
         struct resource *regs;
@@ -50,8 +50,8 @@ int dw_mci_pltfm_register(struct platform_device *pdev,
         if (!host->regs)
                 return -ENOMEM;
 
-        if (host->drv_data->init) {
-                ret = host->drv_data->init(host);
+        if (drv_data && drv_data->init) {
+                ret = drv_data->init(host);
                 if (ret)
                         return ret;
         }
diff --git a/drivers/mmc/host/dw_mmc-pltfm.h b/drivers/mmc/host/dw_mmc-pltfm.h
index 301f24541fc2..2ac37b81de4d 100644
--- a/drivers/mmc/host/dw_mmc-pltfm.h
+++ b/drivers/mmc/host/dw_mmc-pltfm.h
@@ -13,7 +13,7 @@
 #define _DW_MMC_PLTFM_H_
 
 extern int dw_mci_pltfm_register(struct platform_device *pdev,
-                                struct dw_mci_drv_data *drv_data);
+                                const struct dw_mci_drv_data *drv_data);
 extern int __devexit dw_mci_pltfm_remove(struct platform_device *pdev);
 extern const struct dev_pm_ops dw_mci_pltfm_pmops;
 
diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index c2828f35c3b8..c0667c8af2bd 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -232,6 +232,7 @@ static u32 dw_mci_prepare_command(struct mmc_host *mmc, struct mmc_command *cmd)
 {
         struct mmc_data *data;
         struct dw_mci_slot *slot = mmc_priv(mmc);
+        struct dw_mci_drv_data *drv_data = slot->host->drv_data;
         u32 cmdr;
         cmd->error = -EINPROGRESS;
 
@@ -261,8 +262,8 @@ static u32 dw_mci_prepare_command(struct mmc_host *mmc, struct mmc_command *cmd)
                         cmdr |= SDMMC_CMD_DAT_WR;
         }
 
-        if (slot->host->drv_data->prepare_command)
-                slot->host->drv_data->prepare_command(slot->host, &cmdr);
+        if (drv_data && drv_data->prepare_command)
+                drv_data->prepare_command(slot->host, &cmdr);
 
         return cmdr;
 }
@@ -434,7 +435,7 @@ static int dw_mci_idmac_init(struct dw_mci *host)
         return 0;
 }
 
-static struct dw_mci_dma_ops dw_mci_idmac_ops = {
+static const struct dw_mci_dma_ops dw_mci_idmac_ops = {
         .init = dw_mci_idmac_init,
         .start = dw_mci_idmac_start_dma,
         .stop = dw_mci_idmac_stop_dma,
@@ -772,6 +773,7 @@ static void dw_mci_request(struct mmc_host *mmc, struct mmc_request *mrq)
 static void dw_mci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
 {
         struct dw_mci_slot *slot = mmc_priv(mmc);
+        struct dw_mci_drv_data *drv_data = slot->host->drv_data;
         u32 regs;
 
         /* set default 1 bit mode */
@@ -807,8 +809,8 @@ static void dw_mci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
                 slot->clock = ios->clock;
         }
 
-        if (slot->host->drv_data->set_ios)
-                slot->host->drv_data->set_ios(slot->host, ios);
+        if (drv_data && drv_data->set_ios)
+                drv_data->set_ios(slot->host, ios);
 
         switch (ios->power_mode) {
         case MMC_POWER_UP:
@@ -1815,6 +1817,7 @@ static int dw_mci_init_slot(struct dw_mci *host, unsigned int id)
 {
         struct mmc_host *mmc;
         struct dw_mci_slot *slot;
+        struct dw_mci_drv_data *drv_data = host->drv_data;
         int ctrl_id, ret;
         u8 bus_width;
 
@@ -1854,8 +1857,8 @@ static int dw_mci_init_slot(struct dw_mci *host, unsigned int id)
         } else {
                 ctrl_id = to_platform_device(host->dev)->id;
         }
-        if (host->drv_data && host->drv_data->caps)
-                mmc->caps |= host->drv_data->caps[ctrl_id];
+        if (drv_data && drv_data->caps)
+                mmc->caps |= drv_data->caps[ctrl_id];
 
         if (host->pdata->caps2)
                 mmc->caps2 = host->pdata->caps2;
@@ -1867,10 +1870,10 @@ static int dw_mci_init_slot(struct dw_mci *host, unsigned int id)
         else
                 bus_width = 1;
 
-        if (host->drv_data->setup_bus) {
+        if (drv_data && drv_data->setup_bus) {
                 struct device_node *slot_np;
                 slot_np = dw_mci_of_find_slot_node(host->dev, slot->id);
-                ret = host->drv_data->setup_bus(host, slot_np, bus_width);
+                ret = drv_data->setup_bus(host, slot_np, bus_width);
                 if (ret)
                         goto err_setup_bus;
         }
@@ -1968,7 +1971,7 @@ static void dw_mci_init_dma(struct dw_mci *host)
         /* Determine which DMA interface to use */
 #ifdef CONFIG_MMC_DW_IDMAC
         host->dma_ops = &dw_mci_idmac_ops;
-        dev_info(&host->dev, "Using internal DMA controller.\n");
+        dev_info(host->dev, "Using internal DMA controller.\n");
 #endif
 
         if (!host->dma_ops)
@@ -2035,6 +2038,7 @@ static struct dw_mci_board *dw_mci_parse_dt(struct dw_mci *host)
         struct dw_mci_board *pdata;
         struct device *dev = host->dev;
         struct device_node *np = dev->of_node;
+        struct dw_mci_drv_data *drv_data = host->drv_data;
         int idx, ret;
 
         pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
@@ -2062,8 +2066,8 @@ static struct dw_mci_board *dw_mci_parse_dt(struct dw_mci *host)
 
         of_property_read_u32(np, "card-detect-delay", &pdata->detect_delay_ms);
 
-        if (host->drv_data->parse_dt) {
-                ret = host->drv_data->parse_dt(host);
+        if (drv_data && drv_data->parse_dt) {
+                ret = drv_data->parse_dt(host);
                 if (ret)
                         return ERR_PTR(ret);
         }
@@ -2080,6 +2084,7 @@ static struct dw_mci_board *dw_mci_parse_dt(struct dw_mci *host)
 
 int dw_mci_probe(struct dw_mci *host)
 {
+        struct dw_mci_drv_data *drv_data = host->drv_data;
         int width, i, ret = 0;
         u32 fifo_size;
         int init_slots = 0;
@@ -2127,8 +2132,8 @@ int dw_mci_probe(struct dw_mci *host)
         else
                 host->bus_hz = clk_get_rate(host->ciu_clk);
 
-        if (host->drv_data->setup_clock) {
-                ret = host->drv_data->setup_clock(host);
+        if (drv_data && drv_data->setup_clock) {
+                ret = drv_data->setup_clock(host);
                 if (ret) {
                         dev_err(host->dev,
                                 "implementation specific clock setup failed\n");
@@ -2228,6 +2233,21 @@ int dw_mci_probe(struct dw_mci *host)
         else
                 host->num_slots = ((mci_readl(host, HCON) >> 1) & 0x1F) + 1;
 
+        /*
+         * Enable interrupts for command done, data over, data empty, card det,
+         * receive ready and error such as transmit, receive timeout, crc error
+         */
+        mci_writel(host, RINTSTS, 0xFFFFFFFF);
+        mci_writel(host, INTMASK, SDMMC_INT_CMD_DONE | SDMMC_INT_DATA_OVER |
+                   SDMMC_INT_TXDR | SDMMC_INT_RXDR |
+                   DW_MCI_ERROR_FLAGS | SDMMC_INT_CD);
+        mci_writel(host, CTRL, SDMMC_CTRL_INT_ENABLE); /* Enable mci interrupt */
+
+        dev_info(host->dev, "DW MMC controller at irq %d, "
+                 "%d bit host data width, "
+                 "%u deep fifo\n",
+                 host->irq, width, fifo_size);
+
         /* We need at least one slot to succeed */
         for (i = 0; i < host->num_slots; i++) {
                 ret = dw_mci_init_slot(host, i);
@@ -2257,20 +2277,6 @@ int dw_mci_probe(struct dw_mci *host)
         else
                 host->data_offset = DATA_240A_OFFSET;
 
-        /*
-         * Enable interrupts for command done, data over, data empty, card det,
-         * receive ready and error such as transmit, receive timeout, crc error
-         */
-        mci_writel(host, RINTSTS, 0xFFFFFFFF);
-        mci_writel(host, INTMASK, SDMMC_INT_CMD_DONE | SDMMC_INT_DATA_OVER |
-                   SDMMC_INT_TXDR | SDMMC_INT_RXDR |
-                   DW_MCI_ERROR_FLAGS | SDMMC_INT_CD);
-        mci_writel(host, CTRL, SDMMC_CTRL_INT_ENABLE); /* Enable mci interrupt */
-
-        dev_info(host->dev, "DW MMC controller at irq %d, "
-                 "%d bit host data width, "
-                 "%u deep fifo\n",
-                 host->irq, width, fifo_size);
         if (host->quirks & DW_MCI_QUIRK_IDMAC_DTO)
                 dev_info(host->dev, "Internal DMAC interrupt fix enabled.\n");
 
diff --git a/drivers/mmc/host/mxcmmc.c b/drivers/mmc/host/mxcmmc.c
index 565c2e4fac75..6290b7f1ccfe 100644
--- a/drivers/mmc/host/mxcmmc.c
+++ b/drivers/mmc/host/mxcmmc.c
@@ -1134,4 +1134,4 @@ module_platform_driver(mxcmci_driver);
 MODULE_DESCRIPTION("i.MX Multimedia Card Interface Driver");
 MODULE_AUTHOR("Sascha Hauer, Pengutronix");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS("platform:imx-mmc");
+MODULE_ALIAS("platform:mxc-mmc");
diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index 54bfd0cc106b..fedd258cc4ea 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -178,7 +178,8 @@ struct omap_hsmmc_host {
 
 static int omap_hsmmc_card_detect(struct device *dev, int slot)
 {
-        struct omap_mmc_platform_data *mmc = dev->platform_data;
+        struct omap_hsmmc_host *host = dev_get_drvdata(dev);
+        struct omap_mmc_platform_data *mmc = host->pdata;
 
         /* NOTE: assumes card detect signal is active-low */
         return !gpio_get_value_cansleep(mmc->slots[0].switch_pin);
@@ -186,7 +187,8 @@ static int omap_hsmmc_card_detect(struct device *dev, int slot)
 
 static int omap_hsmmc_get_wp(struct device *dev, int slot)
 {
-        struct omap_mmc_platform_data *mmc = dev->platform_data;
+        struct omap_hsmmc_host *host = dev_get_drvdata(dev);
+        struct omap_mmc_platform_data *mmc = host->pdata;
 
         /* NOTE: assumes write protect signal is active-high */
         return gpio_get_value_cansleep(mmc->slots[0].gpio_wp);
@@ -194,7 +196,8 @@ static int omap_hsmmc_get_wp(struct device *dev, int slot)
 
 static int omap_hsmmc_get_cover_state(struct device *dev, int slot)
 {
-        struct omap_mmc_platform_data *mmc = dev->platform_data;
+        struct omap_hsmmc_host *host = dev_get_drvdata(dev);
+        struct omap_mmc_platform_data *mmc = host->pdata;
 
         /* NOTE: assumes card detect signal is active-low */
         return !gpio_get_value_cansleep(mmc->slots[0].switch_pin);
@@ -204,7 +207,8 @@ static int omap_hsmmc_get_cover_state(struct device *dev, int slot)
 
 static int omap_hsmmc_suspend_cdirq(struct device *dev, int slot)
 {
-        struct omap_mmc_platform_data *mmc = dev->platform_data;
+        struct omap_hsmmc_host *host = dev_get_drvdata(dev);
+        struct omap_mmc_platform_data *mmc = host->pdata;
 
         disable_irq(mmc->slots[0].card_detect_irq);
         return 0;
@@ -212,7 +216,8 @@ static int omap_hsmmc_suspend_cdirq(struct device *dev, int slot)
 
 static int omap_hsmmc_resume_cdirq(struct device *dev, int slot)
 {
-        struct omap_mmc_platform_data *mmc = dev->platform_data;
+        struct omap_hsmmc_host *host = dev_get_drvdata(dev);
+        struct omap_mmc_platform_data *mmc = host->pdata;
 
         enable_irq(mmc->slots[0].card_detect_irq);
         return 0;
@@ -2009,9 +2014,9 @@ static int __devexit omap_hsmmc_remove(struct platform_device *pdev)
                 clk_put(host->dbclk);
         }
 
-        mmc_free_host(host->mmc);
+        omap_hsmmc_gpio_free(host->pdata);
         iounmap(host->base);
-        omap_hsmmc_gpio_free(pdev->dev.platform_data);
+        mmc_free_host(host->mmc);
 
         res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
         if (res)
diff --git a/drivers/mmc/host/sdhci-dove.c b/drivers/mmc/host/sdhci-dove.c
index 90140eb03e36..8fd50a211037 100644
--- a/drivers/mmc/host/sdhci-dove.c
+++ b/drivers/mmc/host/sdhci-dove.c
@@ -19,6 +19,7 @@
  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
+#include <linux/err.h>
 #include <linux/io.h>
 #include <linux/clk.h>
 #include <linux/err.h>
@@ -84,30 +85,32 @@ static int __devinit sdhci_dove_probe(struct platform_device *pdev)
         struct sdhci_dove_priv *priv;
         int ret;
 
-        ret = sdhci_pltfm_register(pdev, &sdhci_dove_pdata);
-        if (ret)
-                goto sdhci_dove_register_fail;
-
         priv = devm_kzalloc(&pdev->dev, sizeof(struct sdhci_dove_priv),
                             GFP_KERNEL);
         if (!priv) {
                 dev_err(&pdev->dev, "unable to allocate private data");
-                ret = -ENOMEM;
-                goto sdhci_dove_allocate_fail;
+                return -ENOMEM;
         }
 
+        priv->clk = clk_get(&pdev->dev, NULL);
+        if (!IS_ERR(priv->clk))
+                clk_prepare_enable(priv->clk);
+
+        ret = sdhci_pltfm_register(pdev, &sdhci_dove_pdata);
+        if (ret)
+                goto sdhci_dove_register_fail;
+
         host = platform_get_drvdata(pdev);
         pltfm_host = sdhci_priv(host);
         pltfm_host->priv = priv;
 
-        priv->clk = clk_get(&pdev->dev, NULL);
-        if (!IS_ERR(priv->clk))
-                clk_prepare_enable(priv->clk);
         return 0;
 
-sdhci_dove_allocate_fail:
-        sdhci_pltfm_unregister(pdev);
 sdhci_dove_register_fail:
+        if (!IS_ERR(priv->clk)) {
+                clk_disable_unprepare(priv->clk);
+                clk_put(priv->clk);
+        }
         return ret;
 }
 
@@ -117,14 +120,13 @@ static int __devexit sdhci_dove_remove(struct platform_device *pdev)
         struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
         struct sdhci_dove_priv *priv = pltfm_host->priv;
 
-        if (priv->clk) {
-                if (!IS_ERR(priv->clk)) {
-                        clk_disable_unprepare(priv->clk);
-                        clk_put(priv->clk);
-                }
-                devm_kfree(&pdev->dev, priv->clk);
+        sdhci_pltfm_unregister(pdev);
+
+        if (!IS_ERR(priv->clk)) {
+                clk_disable_unprepare(priv->clk);
+                clk_put(priv->clk);
         }
-        return sdhci_pltfm_unregister(pdev);
+        return 0;
 }
 
 static const struct of_device_id sdhci_dove_of_match_table[] __devinitdata = {
diff --git a/drivers/mmc/host/sdhci-of-esdhc.c b/drivers/mmc/host/sdhci-of-esdhc.c
index ae5fcbfa1eef..63d219f57cae 100644
--- a/drivers/mmc/host/sdhci-of-esdhc.c
+++ b/drivers/mmc/host/sdhci-of-esdhc.c
@@ -169,6 +169,16 @@ static void esdhc_of_resume(struct sdhci_host *host)
 }
 #endif
 
+static void esdhc_of_platform_init(struct sdhci_host *host)
+{
+        u32 vvn;
+
+        vvn = in_be32(host->ioaddr + SDHCI_SLOT_INT_STATUS);
+        vvn = (vvn & SDHCI_VENDOR_VER_MASK) >> SDHCI_VENDOR_VER_SHIFT;
+        if (vvn == VENDOR_V_22)
+                host->quirks2 |= SDHCI_QUIRK2_HOST_NO_CMD23;
+}
+
 static struct sdhci_ops sdhci_esdhc_ops = {
         .read_l = esdhc_readl,
         .read_w = esdhc_readw,
@@ -180,6 +190,7 @@ static struct sdhci_ops sdhci_esdhc_ops = {
         .enable_dma = esdhc_of_enable_dma,
         .get_max_clock = esdhc_of_get_max_clock,
         .get_min_clock = esdhc_of_get_min_clock,
+        .platform_init = esdhc_of_platform_init,
 #ifdef CONFIG_PM
         .platform_suspend = esdhc_of_suspend,
         .platform_resume = esdhc_of_resume,
diff --git a/drivers/mmc/host/sdhci-pci.c b/drivers/mmc/host/sdhci-pci.c
index 4bb74b042a06..04936f353ced 100644
--- a/drivers/mmc/host/sdhci-pci.c
+++ b/drivers/mmc/host/sdhci-pci.c
@@ -1196,7 +1196,7 @@ static struct sdhci_pci_slot * __devinit sdhci_pci_probe_slot(
                 return ERR_PTR(-ENODEV);
         }
 
-        if (pci_resource_len(pdev, bar) != 0x100) {
+        if (pci_resource_len(pdev, bar) < 0x100) {
                 dev_err(&pdev->dev, "Invalid iomem size. You may "
                         "experience problems.\n");
         }
diff --git a/drivers/mmc/host/sdhci-pltfm.c b/drivers/mmc/host/sdhci-pltfm.c
index 65551a9709cc..27164457f861 100644
--- a/drivers/mmc/host/sdhci-pltfm.c
+++ b/drivers/mmc/host/sdhci-pltfm.c
@@ -150,6 +150,13 @@ struct sdhci_host *sdhci_pltfm_init(struct platform_device *pdev,
                 goto err_remap;
         }
 
+        /*
+         * Some platforms need to probe the controller to be able to
+         * determine which caps should be used.
+         */
+        if (host->ops && host->ops->platform_init)
+                host->ops->platform_init(host);
+
         platform_set_drvdata(pdev, host);
 
         return host;
diff --git a/drivers/mmc/host/sdhci-s3c.c b/drivers/mmc/host/sdhci-s3c.c
index 2903949594c6..a54dd5d7a5f9 100644
--- a/drivers/mmc/host/sdhci-s3c.c
+++ b/drivers/mmc/host/sdhci-s3c.c
@@ -211,8 +211,8 @@ static void sdhci_s3c_set_clock(struct sdhci_host *host, unsigned int clock)
         if (ourhost->cur_clk != best_src) {
                 struct clk *clk = ourhost->clk_bus[best_src];
 
-                clk_enable(clk);
-                clk_disable(ourhost->clk_bus[ourhost->cur_clk]);
+                clk_prepare_enable(clk);
+                clk_disable_unprepare(ourhost->clk_bus[ourhost->cur_clk]);
 
                 /* turn clock off to card before changing clock source */
                 writew(0, host->ioaddr + SDHCI_CLOCK_CONTROL);
@@ -607,7 +607,7 @@ static int __devinit sdhci_s3c_probe(struct platform_device *pdev)
         }
 
         /* enable the local io clock and keep it running for the moment. */
-        clk_enable(sc->clk_io);
+        clk_prepare_enable(sc->clk_io);
 
         for (clks = 0, ptr = 0; ptr < MAX_BUS_CLK; ptr++) {
                 struct clk *clk;
@@ -638,7 +638,7 @@ static int __devinit sdhci_s3c_probe(struct platform_device *pdev)
         }
 
 #ifndef CONFIG_PM_RUNTIME
-        clk_enable(sc->clk_bus[sc->cur_clk]);
+        clk_prepare_enable(sc->clk_bus[sc->cur_clk]);
 #endif
 
         res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
@@ -747,13 +747,14 @@ static int __devinit sdhci_s3c_probe(struct platform_device *pdev)
                 sdhci_s3c_setup_card_detect_gpio(sc);
 
 #ifdef CONFIG_PM_RUNTIME
-        clk_disable(sc->clk_io);
+        if (pdata->cd_type != S3C_SDHCI_CD_INTERNAL)
+                clk_disable_unprepare(sc->clk_io);
 #endif
         return 0;
 
  err_req_regs:
 #ifndef CONFIG_PM_RUNTIME
-        clk_disable(sc->clk_bus[sc->cur_clk]);
+        clk_disable_unprepare(sc->clk_bus[sc->cur_clk]);
 #endif
         for (ptr = 0; ptr < MAX_BUS_CLK; ptr++) {
                 if (sc->clk_bus[ptr]) {
@@ -762,7 +763,7 @@ static int __devinit sdhci_s3c_probe(struct platform_device *pdev)
         }
 
  err_no_busclks:
-        clk_disable(sc->clk_io);
+        clk_disable_unprepare(sc->clk_io);
         clk_put(sc->clk_io);
 
  err_io_clk:
@@ -794,7 +795,8 @@ static int __devexit sdhci_s3c_remove(struct platform_device *pdev)
                 gpio_free(sc->ext_cd_gpio);
 
 #ifdef CONFIG_PM_RUNTIME
-        clk_enable(sc->clk_io);
+        if (pdata->cd_type != S3C_SDHCI_CD_INTERNAL)
+                clk_prepare_enable(sc->clk_io);
 #endif
         sdhci_remove_host(host, 1);
 
@@ -802,14 +804,14 @@ static int __devexit sdhci_s3c_remove(struct platform_device *pdev)
         pm_runtime_disable(&pdev->dev);
 
 #ifndef CONFIG_PM_RUNTIME
-        clk_disable(sc->clk_bus[sc->cur_clk]);
+        clk_disable_unprepare(sc->clk_bus[sc->cur_clk]);
 #endif
         for (ptr = 0; ptr < MAX_BUS_CLK; ptr++) {
                 if (sc->clk_bus[ptr]) {
                         clk_put(sc->clk_bus[ptr]);
                 }
         }
-        clk_disable(sc->clk_io);
+        clk_disable_unprepare(sc->clk_io);
         clk_put(sc->clk_io);
 
         if (pdev->dev.of_node) {
@@ -849,8 +851,8 @@ static int sdhci_s3c_runtime_suspend(struct device *dev)
 
         ret = sdhci_runtime_suspend_host(host);
 
-        clk_disable(ourhost->clk_bus[ourhost->cur_clk]);
-        clk_disable(busclk);
+        clk_disable_unprepare(ourhost->clk_bus[ourhost->cur_clk]);
+        clk_disable_unprepare(busclk);
         return ret;
 }
 
@@ -861,8 +863,8 @@ static int sdhci_s3c_runtime_resume(struct device *dev)
         struct clk *busclk = ourhost->clk_io;
         int ret;
 
-        clk_enable(busclk);
-        clk_enable(ourhost->clk_bus[ourhost->cur_clk]);
+        clk_prepare_enable(busclk);
+        clk_prepare_enable(ourhost->clk_bus[ourhost->cur_clk]);
         ret = sdhci_runtime_resume_host(host);
         return ret;
 }
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 7922adb42386..c7851c0aabce 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -1315,16 +1315,19 @@ static void sdhci_request(struct mmc_host *mmc, struct mmc_request *mrq)
                  */
                 if ((host->flags & SDHCI_NEEDS_RETUNING) &&
                     !(present_state & (SDHCI_DOING_WRITE | SDHCI_DOING_READ))) {
-                        /* eMMC uses cmd21 while sd and sdio use cmd19 */
-                        tuning_opcode = mmc->card->type == MMC_TYPE_MMC ?
-                                MMC_SEND_TUNING_BLOCK_HS200 :
-                                MMC_SEND_TUNING_BLOCK;
-                        spin_unlock_irqrestore(&host->lock, flags);
-                        sdhci_execute_tuning(mmc, tuning_opcode);
-                        spin_lock_irqsave(&host->lock, flags);
-
-                        /* Restore original mmc_request structure */
-                        host->mrq = mrq;
+                        if (mmc->card) {
+                                /* eMMC uses cmd21 but sd and sdio use cmd19 */
+                                tuning_opcode =
+                                        mmc->card->type == MMC_TYPE_MMC ?
+                                        MMC_SEND_TUNING_BLOCK_HS200 :
+                                        MMC_SEND_TUNING_BLOCK;
+                                spin_unlock_irqrestore(&host->lock, flags);
+                                sdhci_execute_tuning(mmc, tuning_opcode);
+                                spin_lock_irqsave(&host->lock, flags);
+
+                                /* Restore original mmc_request structure */
+                                host->mrq = mrq;
+                        }
                 }
 
                 if (mrq->sbc && !(host->flags & SDHCI_AUTO_CMD23))
@@ -2837,6 +2840,9 @@ int sdhci_add_host(struct sdhci_host *host)
         if (!(host->quirks & SDHCI_QUIRK_FORCE_1_BIT_DATA))
                 mmc->caps |= MMC_CAP_4_BIT_DATA;
 
+        if (host->quirks2 & SDHCI_QUIRK2_HOST_NO_CMD23)
+                mmc->caps &= ~MMC_CAP_CMD23;
+
         if (caps[0] & SDHCI_CAN_DO_HISPD)
                 mmc->caps |= MMC_CAP_SD_HIGHSPEED | MMC_CAP_MMC_HIGHSPEED;
 
@@ -2846,9 +2852,12 @@ int sdhci_add_host(struct sdhci_host *host)
 
         /* If vqmmc regulator and no 1.8V signalling, then there's no UHS */
         host->vqmmc = regulator_get(mmc_dev(mmc), "vqmmc");
-        if (IS_ERR(host->vqmmc)) {
-                pr_info("%s: no vqmmc regulator found\n", mmc_hostname(mmc));
-                host->vqmmc = NULL;
+        if (IS_ERR_OR_NULL(host->vqmmc)) {
+                if (PTR_ERR(host->vqmmc) < 0) {
+                        pr_info("%s: no vqmmc regulator found\n",
+                                mmc_hostname(mmc));
+                        host->vqmmc = NULL;
+                }
         }
         else if (regulator_is_supported_voltage(host->vqmmc, 1800000, 1800000))
                 regulator_enable(host->vqmmc);
@@ -2904,9 +2913,12 @@ int sdhci_add_host(struct sdhci_host *host)
         ocr_avail = 0;
 
         host->vmmc = regulator_get(mmc_dev(mmc), "vmmc");
-        if (IS_ERR(host->vmmc)) {
-                pr_info("%s: no vmmc regulator found\n", mmc_hostname(mmc));
-                host->vmmc = NULL;
+        if (IS_ERR_OR_NULL(host->vmmc)) {
+                if (PTR_ERR(host->vmmc) < 0) {
+                        pr_info("%s: no vmmc regulator found\n",
+                                mmc_hostname(mmc));
+                        host->vmmc = NULL;
+                }
         } else
                 regulator_enable(host->vmmc);
 
diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h
index 97653ea8942b..71a4a7ed46c5 100644
--- a/drivers/mmc/host/sdhci.h
+++ b/drivers/mmc/host/sdhci.h
@@ -278,6 +278,7 @@ struct sdhci_ops {
         void    (*hw_reset)(struct sdhci_host *host);
         void    (*platform_suspend)(struct sdhci_host *host);
         void    (*platform_resume)(struct sdhci_host *host);
+        void    (*platform_init)(struct sdhci_host *host);
 };
 
 #ifdef CONFIG_MMC_SDHCI_IO_ACCESSORS
diff --git a/drivers/mmc/host/sh_mmcif.c b/drivers/mmc/host/sh_mmcif.c
index 11d2bc3b51d5..d25bc97dc5c6 100644
--- a/drivers/mmc/host/sh_mmcif.c
+++ b/drivers/mmc/host/sh_mmcif.c
@@ -1466,9 +1466,9 @@ static int __devexit sh_mmcif_remove(struct platform_device *pdev)
 
         platform_set_drvdata(pdev, NULL);
 
+        clk_disable(host->hclk);
         mmc_free_host(host->mmc);
         pm_runtime_put_sync(&pdev->dev);
-        clk_disable(host->hclk);
         pm_runtime_disable(&pdev->dev);
 
         return 0;
diff --git a/drivers/net/ethernet/jme.c b/drivers/net/ethernet/jme.c
index 92317e9c0f73..60ac46f4ac08 100644
--- a/drivers/net/ethernet/jme.c
+++ b/drivers/net/ethernet/jme.c
@@ -1860,10 +1860,14 @@ jme_open(struct net_device *netdev)
         jme_clear_pm(jme);
         JME_NAPI_ENABLE(jme);
 
-        tasklet_enable(&jme->linkch_task);
-        tasklet_enable(&jme->txclean_task);
-        tasklet_hi_enable(&jme->rxclean_task);
-        tasklet_hi_enable(&jme->rxempty_task);
+        tasklet_init(&jme->linkch_task, jme_link_change_tasklet,
+                     (unsigned long) jme);
+        tasklet_init(&jme->txclean_task, jme_tx_clean_tasklet,
+                     (unsigned long) jme);
+        tasklet_init(&jme->rxclean_task, jme_rx_clean_tasklet,
+                     (unsigned long) jme);
+        tasklet_init(&jme->rxempty_task, jme_rx_empty_tasklet,
+                     (unsigned long) jme);
 
         rc = jme_request_irq(jme);
         if (rc)
@@ -3079,22 +3083,6 @@ jme_init_one(struct pci_dev *pdev,
         tasklet_init(&jme->pcc_task,
                      jme_pcc_tasklet,
                      (unsigned long) jme);
-        tasklet_init(&jme->linkch_task,
-                     jme_link_change_tasklet,
-                     (unsigned long) jme);
-        tasklet_init(&jme->txclean_task,
-                     jme_tx_clean_tasklet,
-                     (unsigned long) jme);
-        tasklet_init(&jme->rxclean_task,
-                     jme_rx_clean_tasklet,
-                     (unsigned long) jme);
-        tasklet_init(&jme->rxempty_task,
-                     jme_rx_empty_tasklet,
-                     (unsigned long) jme);
-        tasklet_disable_nosync(&jme->linkch_task);
-        tasklet_disable_nosync(&jme->txclean_task);
-        tasklet_disable_nosync(&jme->rxclean_task);
-        tasklet_disable_nosync(&jme->rxempty_task);
         jme->dpi.cur = PCC_P1;
 
         jme->reg_ghc = 0;
diff --git a/drivers/net/ethernet/micrel/ksz884x.c b/drivers/net/ethernet/micrel/ksz884x.c
index e4ba868e232c..d16ef24e622f 100644
--- a/drivers/net/ethernet/micrel/ksz884x.c
+++ b/drivers/net/ethernet/micrel/ksz884x.c
@@ -5459,8 +5459,10 @@ static int prepare_hardware(struct net_device *dev)
         rc = request_irq(dev->irq, netdev_intr, IRQF_SHARED, dev->name, dev);
         if (rc)
                 return rc;
-        tasklet_enable(&hw_priv->rx_tasklet);
-        tasklet_enable(&hw_priv->tx_tasklet);
+        tasklet_init(&hw_priv->rx_tasklet, rx_proc_task,
+                     (unsigned long) hw_priv);
+        tasklet_init(&hw_priv->tx_tasklet, tx_proc_task,
+                     (unsigned long) hw_priv);
 
         hw->promiscuous = 0;
         hw->all_multi = 0;
@@ -7033,16 +7035,6 @@ static int __devinit pcidev_init(struct pci_dev *pdev,
         spin_lock_init(&hw_priv->hwlock);
         mutex_init(&hw_priv->lock);
 
-        /* tasklet is enabled. */
-        tasklet_init(&hw_priv->rx_tasklet, rx_proc_task,
-                (unsigned long) hw_priv);
-        tasklet_init(&hw_priv->tx_tasklet, tx_proc_task,
-                (unsigned long) hw_priv);
-
-        /* tasklet_enable will decrement the atomic counter. */
-        tasklet_disable(&hw_priv->rx_tasklet);
-        tasklet_disable(&hw_priv->tx_tasklet);
-
         for (i = 0; i < TOTAL_PORT_NUM; i++)
                 init_waitqueue_head(&hw_priv->counter[i].counter);
 
diff --git a/drivers/net/ethernet/smsc/smsc911x.c b/drivers/net/ethernet/smsc/smsc911x.c
index 62d1baf111ea..c53c0f4e2ce3 100644
--- a/drivers/net/ethernet/smsc/smsc911x.c
+++ b/drivers/net/ethernet/smsc/smsc911x.c
@@ -2110,7 +2110,7 @@ static void __devinit smsc911x_read_mac_address(struct net_device *dev)
 static int __devinit smsc911x_init(struct net_device *dev)
 {
         struct smsc911x_data *pdata = netdev_priv(dev);
-        unsigned int byte_test;
+        unsigned int byte_test, mask;
         unsigned int to = 100;
 
         SMSC_TRACE(pdata, probe, "Driver Parameters:");
@@ -2130,9 +2130,22 @@ static int __devinit smsc911x_init(struct net_device *dev)
         /*
          * poll the READY bit in PMT_CTRL. Any other access to the device is
          * forbidden while this bit isn't set. Try for 100ms
+         *
+         * Note that this test is done before the WORD_SWAP register is
+         * programmed. So in some configurations the READY bit is at 16 before
+         * WORD_SWAP is written to. This issue is worked around by waiting
+         * until either bit 0 or bit 16 gets set in PMT_CTRL.
+         *
+         * SMSC has confirmed that checking bit 16 (marked as reserved in
+         * the datasheet) is fine since these bits "will either never be set
+         * or can only go high after READY does (so also indicate the device
+         * is ready)".
          */
-        while (!(smsc911x_reg_read(pdata, PMT_CTRL) & PMT_CTRL_READY_) && --to)
+
+        mask = PMT_CTRL_READY_ | swahw32(PMT_CTRL_READY_);
+        while (!(smsc911x_reg_read(pdata, PMT_CTRL) & mask) && --to)
                 udelay(1000);
+
         if (to == 0) {
                 pr_err("Device not READY in 100ms aborting\n");
                 return -ENODEV;
diff --git a/drivers/net/ethernet/tile/tilegx.c b/drivers/net/ethernet/tile/tilegx.c
index 4e9810013850..66e025ad5df1 100644
--- a/drivers/net/ethernet/tile/tilegx.c
+++ b/drivers/net/ethernet/tile/tilegx.c
@@ -917,7 +917,7 @@ static int tile_net_setup_interrupts(struct net_device *dev)
         ingress_irq = rc;
         tile_irq_activate(ingress_irq, TILE_IRQ_PERCPU);
         rc = request_irq(ingress_irq, tile_net_handle_ingress_irq,
-                         0, NULL, NULL);
+                         0, "tile_net", NULL);
         if (rc != 0) {
                 netdev_err(dev, "request_irq failed: %d\n", rc);
                 destroy_irq(ingress_irq);
diff --git a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
index 1d04754a6637..77e6db9dcfed 100644
--- a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
+++ b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
@@ -942,6 +942,10 @@ static int axienet_open(struct net_device *ndev)
                 phy_start(lp->phy_dev);
         }
 
+        /* Enable tasklets for Axi DMA error handling */
+        tasklet_init(&lp->dma_err_tasklet, axienet_dma_err_handler,
+                     (unsigned long) lp);
+
         /* Enable interrupts for Axi DMA Tx */
         ret = request_irq(lp->tx_irq, axienet_tx_irq, 0, ndev->name, ndev);
         if (ret)
@@ -950,8 +954,7 @@ static int axienet_open(struct net_device *ndev)
         ret = request_irq(lp->rx_irq, axienet_rx_irq, 0, ndev->name, ndev);
         if (ret)
                 goto err_rx_irq;
-        /* Enable tasklets for Axi DMA error handling */
-        tasklet_enable(&lp->dma_err_tasklet);
+
         return 0;
 
 err_rx_irq:
@@ -960,6 +963,7 @@ err_tx_irq:
         if (lp->phy_dev)
                 phy_disconnect(lp->phy_dev);
         lp->phy_dev = NULL;
+        tasklet_kill(&lp->dma_err_tasklet);
         dev_err(lp->dev, "request_irq() failed\n");
         return ret;
 }
@@ -1613,10 +1617,6 @@ static int __devinit axienet_of_probe(struct platform_device *op)
                 goto err_iounmap_2;
         }
 
-        tasklet_init(&lp->dma_err_tasklet, axienet_dma_err_handler,
-                     (unsigned long) lp);
-        tasklet_disable(&lp->dma_err_tasklet);
-
         return 0;
 
 err_iounmap_2:
diff --git a/drivers/net/phy/mdio-bitbang.c b/drivers/net/phy/mdio-bitbang.c
index 6428fcbbdd4b..daec9b05d168 100644
--- a/drivers/net/phy/mdio-bitbang.c
+++ b/drivers/net/phy/mdio-bitbang.c
@@ -234,7 +234,6 @@ void free_mdio_bitbang(struct mii_bus *bus)
         struct mdiobb_ctrl *ctrl = bus->priv;
 
         module_put(ctrl->ops->owner);
-        mdiobus_unregister(bus);
         mdiobus_free(bus);
 }
 EXPORT_SYMBOL(free_mdio_bitbang);
diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c
index ddc7b8880f60..d38bc20a60e2 100644
--- a/drivers/net/usb/cdc_ncm.c
+++ b/drivers/net/usb/cdc_ncm.c
@@ -440,10 +440,12 @@ advance:
             ((!ctx->mbim_desc) && ((ctx->ether_desc == NULL) || (ctx->control != intf))))
                 goto error;
 
-        /* claim interfaces, if any */
-        temp = usb_driver_claim_interface(driver, ctx->data, dev);
-        if (temp)
-                goto error;
+        /* claim data interface, if different from control */
+        if (ctx->data != ctx->control) {
+                temp = usb_driver_claim_interface(driver, ctx->data, dev);
+                if (temp)
+                        goto error;
+        }
 
         iface_no = ctx->data->cur_altsetting->desc.bInterfaceNumber;
 
@@ -519,6 +521,10 @@ void cdc_ncm_unbind(struct usbnet *dev, struct usb_interface *intf)
 
         tasklet_kill(&ctx->bh);
 
+        /* handle devices with combined control and data interface */
+        if (ctx->control == ctx->data)
+                ctx->data = NULL;
+
         /* disconnect master --> disconnect slave */
         if (intf == ctx->control && ctx->data) {
                 usb_set_intfdata(ctx->data, NULL);
@@ -1186,6 +1192,14 @@ static const struct usb_device_id cdc_devs[] = {
           .driver_info = (unsigned long) &wwan_info,
         },
 
+        /* Huawei NCM devices disguised as vendor specific */
+        { USB_VENDOR_AND_INTERFACE_INFO(0x12d1, 0xff, 0x02, 0x16),
+          .driver_info = (unsigned long)&wwan_info,
+        },
+        { USB_VENDOR_AND_INTERFACE_INFO(0x12d1, 0xff, 0x02, 0x46),
+          .driver_info = (unsigned long)&wwan_info,
+        },
+
         /* Generic CDC-NCM devices */
         { USB_INTERFACE_INFO(USB_CLASS_COMM,
                 USB_CDC_SUBCLASS_NCM, USB_CDC_PROTO_NONE),
diff --git a/drivers/net/usb/smsc95xx.c b/drivers/net/usb/smsc95xx.c
index e07f70b5f39c..e083f5371136 100644
--- a/drivers/net/usb/smsc95xx.c
+++ b/drivers/net/usb/smsc95xx.c
@@ -203,7 +203,7 @@ static int smsc95xx_mdio_read(struct net_device *netdev, int phy_id, int idx)
         /* set the address, index & direction (read from PHY) */
         phy_id &= dev->mii.phy_id_mask;
         idx &= dev->mii.reg_num_mask;
-        addr = (phy_id << 11) | (idx << 6) | MII_READ_;
+        addr = (phy_id << 11) | (idx << 6) | MII_READ_ | MII_BUSY_;
         ret = smsc95xx_write_reg(dev, MII_ADDR, addr);
         check_warn_goto_done(ret, "Error writing MII_ADDR");
 
@@ -240,7 +240,7 @@ static void smsc95xx_mdio_write(struct net_device *netdev, int phy_id, int idx,
         /* set the address, index & direction (write to PHY) */
         phy_id &= dev->mii.phy_id_mask;
         idx &= dev->mii.reg_num_mask;
-        addr = (phy_id << 11) | (idx << 6) | MII_WRITE_;
+        addr = (phy_id << 11) | (idx << 6) | MII_WRITE_ | MII_BUSY_;
         ret = smsc95xx_write_reg(dev, MII_ADDR, addr);
         check_warn_goto_done(ret, "Error writing MII_ADDR");
 
diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index 9814d67237f1..6898a7932cff 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -1,5 +1,5 @@
 /*
- * VXLAN: Virtual eXtensiable Local Area Network
+ * VXLAN: Virtual eXtensible Local Area Network
  *
  * Copyright (c) 2012 Vyatta Inc.
  *
@@ -50,8 +50,8 @@
 
 #define VXLAN_N_VID     (1u << 24)
 #define VXLAN_VID_MASK  (VXLAN_N_VID - 1)
-/* VLAN + IP header + UDP + VXLAN */
-#define VXLAN_HEADROOM (4 + 20 + 8 + 8)
+/* IP header + UDP + VXLAN + Ethernet header */
+#define VXLAN_HEADROOM (20 + 8 + 8 + 14)
 
 #define VXLAN_FLAGS 0x08000000  /* struct vxlanhdr.vx_flags required value. */
 
@@ -1102,6 +1102,10 @@ static int vxlan_newlink(struct net *net, struct net_device *dev,
 
                 if (!tb[IFLA_MTU])
                         dev->mtu = lowerdev->mtu - VXLAN_HEADROOM;
+
+                /* update header length based on lower device */
+                dev->hard_header_len = lowerdev->hard_header_len +
+                                       VXLAN_HEADROOM;
         }
 
         if (data[IFLA_VXLAN_TOS])
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c b/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c
index cb30feaa565b..6d554249394f 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c
@@ -4197,7 +4197,7 @@ static s32 brcmf_mode_to_nl80211_iftype(s32 mode)
 
 static void brcmf_wiphy_pno_params(struct wiphy *wiphy)
 {
-#ifndef CONFIG_BRCMFISCAN
+#ifndef CONFIG_BRCMISCAN
         /* scheduled scan settings */
         wiphy->max_sched_scan_ssids = BRCMF_PNO_MAX_PFN_COUNT;
         wiphy->max_match_sets = BRCMF_PNO_MAX_PFN_COUNT;
diff --git a/drivers/net/wireless/iwlwifi/dvm/mac80211.c b/drivers/net/wireless/iwlwifi/dvm/mac80211.c
index ff8162d4c454..fa4d1b8cd9f6 100644
--- a/drivers/net/wireless/iwlwifi/dvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/dvm/mac80211.c
@@ -521,7 +521,7 @@ static void iwlagn_mac_tx(struct ieee80211_hw *hw,
                      ieee80211_get_tx_rate(hw, IEEE80211_SKB_CB(skb))->bitrate);
 
         if (iwlagn_tx_skb(priv, control->sta, skb))
-                dev_kfree_skb_any(skb);
+                ieee80211_free_txskb(hw, skb);
 }
 
 static void iwlagn_mac_update_tkip_key(struct ieee80211_hw *hw,
diff --git a/drivers/net/wireless/iwlwifi/dvm/main.c b/drivers/net/wireless/iwlwifi/dvm/main.c
index 475df45c8320..30e761d31e98 100644
--- a/drivers/net/wireless/iwlwifi/dvm/main.c
+++ b/drivers/net/wireless/iwlwifi/dvm/main.c
@@ -2113,7 +2113,7 @@ static void iwl_free_skb(struct iwl_op_mode *op_mode, struct sk_buff *skb)
 
         info = IEEE80211_SKB_CB(skb);
         iwl_trans_free_tx_cmd(priv->trans, info->driver_data[1]);
-        dev_kfree_skb_any(skb);
+        ieee80211_free_txskb(priv->hw, skb);
 }
 
 static void iwl_set_hw_rfkill_state(struct iwl_op_mode *op_mode, bool state)
diff --git a/drivers/net/wireless/iwlwifi/pcie/rx.c b/drivers/net/wireless/iwlwifi/pcie/rx.c
index 137af4c46a6c..41d821fbdb92 100644
--- a/drivers/net/wireless/iwlwifi/pcie/rx.c
+++ b/drivers/net/wireless/iwlwifi/pcie/rx.c
@@ -321,6 +321,14 @@ static void iwl_rx_allocate(struct iwl_trans *trans, gfp_t priority)
                         dma_map_page(trans->dev, page, 0,
                                      PAGE_SIZE << trans_pcie->rx_page_order,
                                      DMA_FROM_DEVICE);
+                if (dma_mapping_error(trans->dev, rxb->page_dma)) {
+                        rxb->page = NULL;
+                        spin_lock_irqsave(&rxq->lock, flags);
+                        list_add(&rxb->list, &rxq->rx_used);
+                        spin_unlock_irqrestore(&rxq->lock, flags);
+                        __free_pages(page, trans_pcie->rx_page_order);
+                        return;
+                }
                 /* dma address must be no more than 36 bits */
                 BUG_ON(rxb->page_dma & ~DMA_BIT_MASK(36));
                 /* and also 256 byte aligned! */
@@ -489,8 +497,19 @@ static void iwl_rx_handle_rxbuf(struct iwl_trans *trans,
                         dma_map_page(trans->dev, rxb->page, 0,
                                      PAGE_SIZE << trans_pcie->rx_page_order,
                                      DMA_FROM_DEVICE);
-                list_add_tail(&rxb->list, &rxq->rx_free);
-                rxq->free_count++;
+                if (dma_mapping_error(trans->dev, rxb->page_dma)) {
+                        /*
+                         * free the page(s) as well to not break
+                         * the invariant that the items on the used
+                         * list have no page(s)
+                         */
+                        __free_pages(rxb->page, trans_pcie->rx_page_order);
+                        rxb->page = NULL;
+                        list_add_tail(&rxb->list, &rxq->rx_used);
+                } else {
+                        list_add_tail(&rxb->list, &rxq->rx_free);
+                        rxq->free_count++;
+                }
         } else
                 list_add_tail(&rxb->list, &rxq->rx_used);
         spin_unlock_irqrestore(&rxq->lock, flags);
diff --git a/drivers/pci/bus.c b/drivers/pci/bus.c
index 6241fd05bd41..a543746fb354 100644
--- a/drivers/pci/bus.c
+++ b/drivers/pci/bus.c
@@ -320,10 +320,7 @@ void pci_walk_bus(struct pci_bus *top, int (*cb)(struct pci_dev *, void *),
                 } else
                         next = dev->bus_list.next;
 
-                /* Run device routines with the device locked */
-                device_lock(&dev->dev);
                 retval = cb(dev, userdata);
-                device_unlock(&dev->dev);
                 if (retval)
                         break;
         }
diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c
index 94c6e2aa03d6..6c94fc9489e7 100644
--- a/drivers/pci/pci-driver.c
+++ b/drivers/pci/pci-driver.c
@@ -398,6 +398,8 @@ static void pci_device_shutdown(struct device *dev)
         struct pci_dev *pci_dev = to_pci_dev(dev);
         struct pci_driver *drv = pci_dev->driver;
 
+        pm_runtime_resume(dev);
+
         if (drv && drv->shutdown)
                 drv->shutdown(pci_dev);
         pci_msi_shutdown(pci_dev);
@@ -408,16 +410,6 @@ static void pci_device_shutdown(struct device *dev)
          * continue to do DMA
          */
         pci_disable_device(pci_dev);
-
-        /*
-         * Devices may be enabled to wake up by runtime PM, but they need not
-         * be supposed to wake up the system from its "power off" state (e.g.
-         * ACPI S5).  Therefore disable wakeup for all devices that aren't
-         * supposed to wake up the system at this point.  The state argument
-         * will be ignored by pci_enable_wake().
-         */
-        if (!device_may_wakeup(dev))
-                pci_enable_wake(pci_dev, PCI_UNKNOWN, false);
 }
 
 #ifdef CONFIG_PM
diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c
index 02d107b15281..f39378d9da15 100644
--- a/drivers/pci/pci-sysfs.c
+++ b/drivers/pci/pci-sysfs.c
@@ -458,40 +458,6 @@ boot_vga_show(struct device *dev, struct device_attribute *attr, char *buf)
 }
 struct device_attribute vga_attr = __ATTR_RO(boot_vga);
 
-static void
-pci_config_pm_runtime_get(struct pci_dev *pdev)
-{
-        struct device *dev = &pdev->dev;
-        struct device *parent = dev->parent;
-
-        if (parent)
-                pm_runtime_get_sync(parent);
-        pm_runtime_get_noresume(dev);
-        /*
-         * pdev->current_state is set to PCI_D3cold during suspending,
-         * so wait until suspending completes
-         */
-        pm_runtime_barrier(dev);
-        /*
-         * Only need to resume devices in D3cold, because config
-         * registers are still accessible for devices suspended but
-         * not in D3cold.
-         */
-        if (pdev->current_state == PCI_D3cold)
-                pm_runtime_resume(dev);
-}
-
-static void
-pci_config_pm_runtime_put(struct pci_dev *pdev)
-{
-        struct device *dev = &pdev->dev;
-        struct device *parent = dev->parent;
-
-        pm_runtime_put(dev);
-        if (parent)
-                pm_runtime_put_sync(parent);
-}
-
 static ssize_t
 pci_read_config(struct file *filp, struct kobject *kobj,
                 struct bin_attribute *bin_attr,
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 54858838f098..aabf64798bda 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -1858,6 +1858,38 @@ bool pci_dev_run_wake(struct pci_dev *dev)
 }
 EXPORT_SYMBOL_GPL(pci_dev_run_wake);
 
+void pci_config_pm_runtime_get(struct pci_dev *pdev)
+{
+        struct device *dev = &pdev->dev;
+        struct device *parent = dev->parent;
+
+        if (parent)
+                pm_runtime_get_sync(parent);
+        pm_runtime_get_noresume(dev);
+        /*
+         * pdev->current_state is set to PCI_D3cold during suspending,
+         * so wait until suspending completes
+         */
+        pm_runtime_barrier(dev);
+        /*
+         * Only need to resume devices in D3cold, because config
+         * registers are still accessible for devices suspended but
+         * not in D3cold.
+         */
+        if (pdev->current_state == PCI_D3cold)
+                pm_runtime_resume(dev);
+}
+
+void pci_config_pm_runtime_put(struct pci_dev *pdev)
+{
+        struct device *dev = &pdev->dev;
+        struct device *parent = dev->parent;
+
+        pm_runtime_put(dev);
+        if (parent)
+                pm_runtime_put_sync(parent);
+}
+
 /**
  * pci_pm_init - Initialize PM functions of given PCI device
  * @dev: PCI device to handle.
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
index bacbcba69cf3..fd92aab9904b 100644
--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -72,6 +72,8 @@ extern void pci_disable_enabled_device(struct pci_dev *dev);
 extern int pci_finish_runtime_suspend(struct pci_dev *dev);
 extern int __pci_pme_wakeup(struct pci_dev *dev, void *ign);
 extern void pci_wakeup_bus(struct pci_bus *bus);
+extern void pci_config_pm_runtime_get(struct pci_dev *dev);
+extern void pci_config_pm_runtime_put(struct pci_dev *dev);
 extern void pci_pm_init(struct pci_dev *dev);
 extern void platform_pci_wakeup_init(struct pci_dev *dev);
 extern void pci_allocate_cap_save_buffers(struct pci_dev *dev);
diff --git a/drivers/pci/pcie/aer/aerdrv_core.c b/drivers/pci/pcie/aer/aerdrv_core.c
index 06bad96af415..af4e31cd3a3b 100644
--- a/drivers/pci/pcie/aer/aerdrv_core.c
+++ b/drivers/pci/pcie/aer/aerdrv_core.c
@@ -213,6 +213,7 @@ static int report_error_detected(struct pci_dev *dev, void *data)
         struct aer_broadcast_data *result_data;
         result_data = (struct aer_broadcast_data *) data;
 
+        device_lock(&dev->dev);
         dev->error_state = result_data->state;
 
         if (!dev->driver ||
@@ -231,12 +232,14 @@ static int report_error_detected(struct pci_dev *dev, void *data)
                                    dev->driver ?
                                    "no AER-aware driver" : "no driver");
                 }
-                return 0;
+                goto out;
         }
 
         err_handler = dev->driver->err_handler;
         vote = err_handler->error_detected(dev, result_data->state);
         result_data->result = merge_result(result_data->result, vote);
+out:
+        device_unlock(&dev->dev);
         return 0;
 }
 
@@ -247,14 +250,17 @@ static int report_mmio_enabled(struct pci_dev *dev, void *data)
         struct aer_broadcast_data *result_data;
         result_data = (struct aer_broadcast_data *) data;
 
+        device_lock(&dev->dev);
         if (!dev->driver ||
                 !dev->driver->err_handler ||
                 !dev->driver->err_handler->mmio_enabled)
-                return 0;
+                goto out;
 
         err_handler = dev->driver->err_handler;
         vote = err_handler->mmio_enabled(dev);
         result_data->result = merge_result(result_data->result, vote);
+out:
+        device_unlock(&dev->dev);
         return 0;
 }
 
@@ -265,14 +271,17 @@ static int report_slot_reset(struct pci_dev *dev, void *data)
         struct aer_broadcast_data *result_data;
         result_data = (struct aer_broadcast_data *) data;
 
+        device_lock(&dev->dev);
         if (!dev->driver ||
                 !dev->driver->err_handler ||
                 !dev->driver->err_handler->slot_reset)
-                return 0;
+                goto out;
 
         err_handler = dev->driver->err_handler;
         vote = err_handler->slot_reset(dev);
         result_data->result = merge_result(result_data->result, vote);
+out:
+        device_unlock(&dev->dev);
         return 0;
 }
 
@@ -280,15 +289,18 @@ static int report_resume(struct pci_dev *dev, void *data)
 {
         const struct pci_error_handlers *err_handler;
 
+        device_lock(&dev->dev);
         dev->error_state = pci_channel_io_normal;
 
         if (!dev->driver ||
                 !dev->driver->err_handler ||
                 !dev->driver->err_handler->resume)
-                return 0;
+                goto out;
 
         err_handler = dev->driver->err_handler;
         err_handler->resume(dev);
+out:
+        device_unlock(&dev->dev);
         return 0;
 }
 
diff --git a/drivers/pci/pcie/portdrv_core.c b/drivers/pci/pcie/portdrv_core.c
index d03a7a39b2d8..ed129b414624 100644
--- a/drivers/pci/pcie/portdrv_core.c
+++ b/drivers/pci/pcie/portdrv_core.c
@@ -272,7 +272,8 @@ static int get_port_device_capability(struct pci_dev *dev)
         }
 
         /* Hot-Plug Capable */
-        if (cap_mask & PCIE_PORT_SERVICE_HP) {
+        if ((cap_mask & PCIE_PORT_SERVICE_HP) &&
+            dev->pcie_flags_reg & PCI_EXP_FLAGS_SLOT) {
                 pcie_capability_read_dword(dev, PCI_EXP_SLTCAP, &reg32);
                 if (reg32 & PCI_EXP_SLTCAP_HPC) {
                         services |= PCIE_PORT_SERVICE_HP;
diff --git a/drivers/pci/proc.c b/drivers/pci/proc.c
index eb907a8faf2a..9b8505ccc56d 100644
--- a/drivers/pci/proc.c
+++ b/drivers/pci/proc.c
@@ -76,6 +76,8 @@ proc_bus_pci_read(struct file *file, char __user *buf, size_t nbytes, loff_t *pp
         if (!access_ok(VERIFY_WRITE, buf, cnt))
                 return -EINVAL;
 
+        pci_config_pm_runtime_get(dev);
+
         if ((pos & 1) && cnt) {
                 unsigned char val;
                 pci_user_read_config_byte(dev, pos, &val);
@@ -121,6 +123,8 @@ proc_bus_pci_read(struct file *file, char __user *buf, size_t nbytes, loff_t *pp
                 cnt--;
         }
 
+        pci_config_pm_runtime_put(dev);
+
         *ppos = pos;
         return nbytes;
 }
@@ -146,6 +150,8 @@ proc_bus_pci_write(struct file *file, const char __user *buf, size_t nbytes, lof
         if (!access_ok(VERIFY_READ, buf, cnt))
                 return -EINVAL;
 
+        pci_config_pm_runtime_get(dev);
+
         if ((pos & 1) && cnt) {
                 unsigned char val;
                 __get_user(val, buf);
@@ -191,6 +197,8 @@ proc_bus_pci_write(struct file *file, const char __user *buf, size_t nbytes, lof
                 cnt--;
         }
 
+        pci_config_pm_runtime_put(dev);
+
         *ppos = pos;
         i_size_write(ino, dp->size);
         return nbytes;
diff --git a/drivers/pinctrl/Kconfig b/drivers/pinctrl/Kconfig
index 7bf914df6e91..d96caefd914a 100644
--- a/drivers/pinctrl/Kconfig
+++ b/drivers/pinctrl/Kconfig
@@ -179,11 +179,13 @@ config PINCTRL_COH901
 
 config PINCTRL_SAMSUNG
         bool "Samsung pinctrl driver"
+        depends on OF && GPIOLIB
         select PINMUX
         select PINCONF
 
 config PINCTRL_EXYNOS4
         bool "Pinctrl driver data for Exynos4 SoC"
+        depends on OF && GPIOLIB
         select PINCTRL_SAMSUNG
 
 config PINCTRL_MVEBU
diff --git a/drivers/pinctrl/spear/pinctrl-spear.c b/drivers/pinctrl/spear/pinctrl-spear.c
index 5d4f44f462f0..b1fd6ee33c6c 100644
--- a/drivers/pinctrl/spear/pinctrl-spear.c
+++ b/drivers/pinctrl/spear/pinctrl-spear.c
@@ -244,7 +244,7 @@ static int spear_pinctrl_endisable(struct pinctrl_dev *pctldev,
                         else
                                 temp = ~muxreg->val;
 
-                        val |= temp;
+                        val |= muxreg->mask & temp;
                         pmx_writel(pmx, val, muxreg->reg);
                 }
         }
diff --git a/drivers/pinctrl/spear/pinctrl-spear1310.c b/drivers/pinctrl/spear/pinctrl-spear1310.c
index d6cca8c81b92..0436fc7895d6 100644
--- a/drivers/pinctrl/spear/pinctrl-spear1310.c
+++ b/drivers/pinctrl/spear/pinctrl-spear1310.c
@@ -25,8 +25,8 @@ static const struct pinctrl_pin_desc spear1310_pins[] = {
 };
 
 /* registers */
-#define PERIP_CFG                                       0x32C
-        #define MCIF_SEL_SHIFT                          3
+#define PERIP_CFG                                       0x3B0
+        #define MCIF_SEL_SHIFT                          5
         #define MCIF_SEL_SD                             (0x1 << MCIF_SEL_SHIFT)
         #define MCIF_SEL_CF                             (0x2 << MCIF_SEL_SHIFT)
         #define MCIF_SEL_XD                             (0x3 << MCIF_SEL_SHIFT)
@@ -164,6 +164,10 @@ static const struct pinctrl_pin_desc spear1310_pins[] = {
         #define PMX_SSP0_CS0_MASK                       (1 << 29)
         #define PMX_SSP0_CS1_2_MASK                     (1 << 30)
 
+#define PAD_DIRECTION_SEL_0                             0x65C
+#define PAD_DIRECTION_SEL_1                             0x660
+#define PAD_DIRECTION_SEL_2                             0x664
+
 /* combined macros */
 #define PMX_GMII_MASK           (PMX_GMIICLK_MASK |                     \
                                 PMX_GMIICOL_CRS_XFERER_MIITXCLK_MASK |  \
@@ -237,6 +241,10 @@ static struct spear_muxreg i2c0_muxreg[] = {
                 .reg = PAD_FUNCTION_EN_0,
                 .mask = PMX_I2C0_MASK,
                 .val = PMX_I2C0_MASK,
+        }, {
+                .reg = PAD_DIRECTION_SEL_0,
+                .mask = PMX_I2C0_MASK,
+                .val = PMX_I2C0_MASK,
         },
 };
 
@@ -269,6 +277,10 @@ static struct spear_muxreg ssp0_muxreg[] = {
                 .reg = PAD_FUNCTION_EN_0,
                 .mask = PMX_SSP0_MASK,
                 .val = PMX_SSP0_MASK,
+        }, {
+                .reg = PAD_DIRECTION_SEL_0,
+                .mask = PMX_SSP0_MASK,
+                .val = PMX_SSP0_MASK,
         },
 };
 
@@ -294,6 +306,10 @@ static struct spear_muxreg ssp0_cs0_muxreg[] = {
                 .reg = PAD_FUNCTION_EN_2,
                 .mask = PMX_SSP0_CS0_MASK,
                 .val = PMX_SSP0_CS0_MASK,
+        }, {
+                .reg = PAD_DIRECTION_SEL_2,
+                .mask = PMX_SSP0_CS0_MASK,
+                .val = PMX_SSP0_CS0_MASK,
         },
 };
 
@@ -319,6 +335,10 @@ static struct spear_muxreg ssp0_cs1_2_muxreg[] = {
                 .reg = PAD_FUNCTION_EN_2,
                 .mask = PMX_SSP0_CS1_2_MASK,
                 .val = PMX_SSP0_CS1_2_MASK,
+        }, {
+                .reg = PAD_DIRECTION_SEL_2,
+                .mask = PMX_SSP0_CS1_2_MASK,
+                .val = PMX_SSP0_CS1_2_MASK,
         },
 };
 
@@ -352,6 +372,10 @@ static struct spear_muxreg i2s0_muxreg[] = {
                 .reg = PAD_FUNCTION_EN_0,
                 .mask = PMX_I2S0_MASK,
                 .val = PMX_I2S0_MASK,
+        }, {
+                .reg = PAD_DIRECTION_SEL_0,
+                .mask = PMX_I2S0_MASK,
+                .val = PMX_I2S0_MASK,
         },
 };
 
@@ -384,6 +408,10 @@ static struct spear_muxreg i2s1_muxreg[] = {
                 .reg = PAD_FUNCTION_EN_1,
                 .mask = PMX_I2S1_MASK,
                 .val = PMX_I2S1_MASK,
+        }, {
+                .reg = PAD_DIRECTION_SEL_1,
+                .mask = PMX_I2S1_MASK,
+                .val = PMX_I2S1_MASK,
         },
 };
 
@@ -418,6 +446,10 @@ static struct spear_muxreg clcd_muxreg[] = {
                 .reg = PAD_FUNCTION_EN_0,
                 .mask = PMX_CLCD1_MASK,
                 .val = PMX_CLCD1_MASK,
+        }, {
+                .reg = PAD_DIRECTION_SEL_0,
+                .mask = PMX_CLCD1_MASK,
+                .val = PMX_CLCD1_MASK,
         },
 };
 
@@ -443,6 +475,10 @@ static struct spear_muxreg clcd_high_res_muxreg[] = {
                 .reg = PAD_FUNCTION_EN_1,
                 .mask = PMX_CLCD2_MASK,
                 .val = PMX_CLCD2_MASK,
+        }, {
+                .reg = PAD_DIRECTION_SEL_1,
+                .mask = PMX_CLCD2_MASK,
+                .val = PMX_CLCD2_MASK,
         },
 };
 
@@ -461,7 +497,7 @@ static struct spear_pingroup clcd_high_res_pingroup = {
         .nmodemuxs = ARRAY_SIZE(clcd_high_res_modemux),
 };
 
-static const char *const clcd_grps[] = { "clcd_grp", "clcd_high_res" };
+static const char *const clcd_grps[] = { "clcd_grp", "clcd_high_res_grp" };
 static struct spear_function clcd_function = {
         .name = "clcd",
         .groups = clcd_grps,
@@ -479,6 +515,14 @@ static struct spear_muxreg arm_gpio_muxreg[] = {
                 .reg = PAD_FUNCTION_EN_1,
                 .mask = PMX_EGPIO_1_GRP_MASK,
                 .val = PMX_EGPIO_1_GRP_MASK,
+        }, {
+                .reg = PAD_DIRECTION_SEL_0,
+                .mask = PMX_EGPIO_0_GRP_MASK,
+                .val = PMX_EGPIO_0_GRP_MASK,
+        }, {
+                .reg = PAD_DIRECTION_SEL_1,
+                .mask = PMX_EGPIO_1_GRP_MASK,
+                .val = PMX_EGPIO_1_GRP_MASK,
         },
 };
 
@@ -511,6 +555,10 @@ static struct spear_muxreg smi_2_chips_muxreg[] = {
                 .reg = PAD_FUNCTION_EN_0,
                 .mask = PMX_SMI_MASK,
                 .val = PMX_SMI_MASK,
+        }, {
+                .reg = PAD_DIRECTION_SEL_0,
+                .mask = PMX_SMI_MASK,
+                .val = PMX_SMI_MASK,
         },
 };
 
@@ -539,6 +587,14 @@ static struct spear_muxreg smi_4_chips_muxreg[] = {
                 .reg = PAD_FUNCTION_EN_1,
                 .mask = PMX_SMINCS2_MASK | PMX_SMINCS3_MASK,
                 .val = PMX_SMINCS2_MASK | PMX_SMINCS3_MASK,
+        }, {
+                .reg = PAD_DIRECTION_SEL_0,
+                .mask = PMX_SMI_MASK,
+                .val = PMX_SMI_MASK,
+        }, {
+                .reg = PAD_DIRECTION_SEL_1,
+                .mask = PMX_SMINCS2_MASK | PMX_SMINCS3_MASK,
+                .val = PMX_SMINCS2_MASK | PMX_SMINCS3_MASK,
         },
 };
 
@@ -573,6 +629,10 @@ static struct spear_muxreg gmii_muxreg[] = {
                 .reg = PAD_FUNCTION_EN_0,
                 .mask = PMX_GMII_MASK,
                 .val = PMX_GMII_MASK,
+        }, {
+                .reg = PAD_DIRECTION_SEL_0,
+                .mask = PMX_GMII_MASK,
+                .val = PMX_GMII_MASK,
         },
 };
 
@@ -615,6 +675,18 @@ static struct spear_muxreg rgmii_muxreg[] = {
                 .reg = PAD_FUNCTION_EN_2,
                 .mask = PMX_RGMII_REG2_MASK,
                 .val = 0,
+        }, {
+                .reg = PAD_DIRECTION_SEL_0,
+                .mask = PMX_RGMII_REG0_MASK,
+                .val = PMX_RGMII_REG0_MASK,
+        }, {
+                .reg = PAD_DIRECTION_SEL_1,
+                .mask = PMX_RGMII_REG1_MASK,
+                .val = PMX_RGMII_REG1_MASK,
+        }, {
+                .reg = PAD_DIRECTION_SEL_2,
+                .mask = PMX_RGMII_REG2_MASK,
+                .val = PMX_RGMII_REG2_MASK,
         },
 };
 
@@ -649,6 +721,10 @@ static struct spear_muxreg smii_0_1_2_muxreg[] = {
                 .reg = PAD_FUNCTION_EN_1,
                 .mask = PMX_SMII_0_1_2_MASK,
                 .val = 0,
+        }, {
+                .reg = PAD_DIRECTION_SEL_1,
+                .mask = PMX_SMII_0_1_2_MASK,
+                .val = PMX_SMII_0_1_2_MASK,
         },
 };
 
@@ -681,6 +757,10 @@ static struct spear_muxreg ras_mii_txclk_muxreg[] = {
                 .reg = PAD_FUNCTION_EN_1,
                 .mask = PMX_NFCE2_MASK,
                 .val = 0,
+        }, {
+                .reg = PAD_DIRECTION_SEL_1,
+                .mask = PMX_NFCE2_MASK,
+                .val = PMX_NFCE2_MASK,
         },
 };
 
@@ -721,6 +801,14 @@ static struct spear_muxreg nand_8bit_muxreg[] = {
                 .reg = PAD_FUNCTION_EN_1,
                 .mask = PMX_NAND8BIT_1_MASK,
                 .val = PMX_NAND8BIT_1_MASK,
+        }, {
+                .reg = PAD_DIRECTION_SEL_0,
+                .mask = PMX_NAND8BIT_0_MASK,
+                .val = PMX_NAND8BIT_0_MASK,
+        }, {
+                .reg = PAD_DIRECTION_SEL_1,
+                .mask = PMX_NAND8BIT_1_MASK,
+                .val = PMX_NAND8BIT_1_MASK,
         },
 };
 
@@ -747,6 +835,10 @@ static struct spear_muxreg nand_16bit_muxreg[] = {
                 .reg = PAD_FUNCTION_EN_1,
                 .mask = PMX_NAND16BIT_1_MASK,
                 .val = PMX_NAND16BIT_1_MASK,
+        }, {
+                .reg = PAD_DIRECTION_SEL_1,
+                .mask = PMX_NAND16BIT_1_MASK,
+                .val = PMX_NAND16BIT_1_MASK,
         },
 };
 
@@ -772,6 +864,10 @@ static struct spear_muxreg nand_4_chips_muxreg[] = {
                 .reg = PAD_FUNCTION_EN_1,
                 .mask = PMX_NAND_4CHIPS_MASK,
                 .val = PMX_NAND_4CHIPS_MASK,
+        }, {
+                .reg = PAD_DIRECTION_SEL_1,
+                .mask = PMX_NAND_4CHIPS_MASK,
+                .val = PMX_NAND_4CHIPS_MASK,
         },
 };
 
@@ -833,6 +929,10 @@ static struct spear_muxreg keyboard_rowcol6_8_muxreg[] = {
                 .reg = PAD_FUNCTION_EN_1,
                 .mask = PMX_KBD_ROWCOL68_MASK,
                 .val = PMX_KBD_ROWCOL68_MASK,
+        }, {
+                .reg = PAD_DIRECTION_SEL_1,
+                .mask = PMX_KBD_ROWCOL68_MASK,
+                .val = PMX_KBD_ROWCOL68_MASK,
         },
 };
 
@@ -866,6 +966,10 @@ static struct spear_muxreg uart0_muxreg[] = {
                 .reg = PAD_FUNCTION_EN_0,
                 .mask = PMX_UART0_MASK,
                 .val = PMX_UART0_MASK,
+        }, {
+                .reg = PAD_DIRECTION_SEL_0,
+                .mask = PMX_UART0_MASK,
+                .val = PMX_UART0_MASK,
         },
 };
 
@@ -891,6 +995,10 @@ static struct spear_muxreg uart0_modem_muxreg[] = {
                 .reg = PAD_FUNCTION_EN_1,
                 .mask = PMX_UART0_MODEM_MASK,
                 .val = PMX_UART0_MODEM_MASK,
+        }, {
+                .reg = PAD_DIRECTION_SEL_1,
+                .mask = PMX_UART0_MODEM_MASK,
+                .val = PMX_UART0_MODEM_MASK,
         },
 };
 
@@ -923,6 +1031,10 @@ static struct spear_muxreg gpt0_tmr0_muxreg[] = {
                 .reg = PAD_FUNCTION_EN_1,
                 .mask = PMX_GPT0_TMR0_MASK,
                 .val = PMX_GPT0_TMR0_MASK,
+        }, {
+                .reg = PAD_DIRECTION_SEL_1,
+                .mask = PMX_GPT0_TMR0_MASK,
+                .val = PMX_GPT0_TMR0_MASK,
         },
 };
 
@@ -948,6 +1060,10 @@ static struct spear_muxreg gpt0_tmr1_muxreg[] = {
                 .reg = PAD_FUNCTION_EN_1,
                 .mask = PMX_GPT0_TMR1_MASK,
                 .val = PMX_GPT0_TMR1_MASK,
+        }, {
+                .reg = PAD_DIRECTION_SEL_1,
+                .mask = PMX_GPT0_TMR1_MASK,
+                .val = PMX_GPT0_TMR1_MASK,
         },
 };
 
@@ -980,6 +1096,10 @@ static struct spear_muxreg gpt1_tmr0_muxreg[] = {
                 .reg = PAD_FUNCTION_EN_1,
                 .mask = PMX_GPT1_TMR0_MASK,
                 .val = PMX_GPT1_TMR0_MASK,
+        }, {
+                .reg = PAD_DIRECTION_SEL_1,
+                .mask = PMX_GPT1_TMR0_MASK,
+                .val = PMX_GPT1_TMR0_MASK,
         },
 };
 
@@ -1005,6 +1125,10 @@ static struct spear_muxreg gpt1_tmr1_muxreg[] = {
                 .reg = PAD_FUNCTION_EN_1,
                 .mask = PMX_GPT1_TMR1_MASK,
                 .val = PMX_GPT1_TMR1_MASK,
+        }, {
+                .reg = PAD_DIRECTION_SEL_1,
+                .mask = PMX_GPT1_TMR1_MASK,
+                .val = PMX_GPT1_TMR1_MASK,
         },
 };
 
@@ -1049,6 +1173,20 @@ static const unsigned mcif_pins[] = { 86, 87, 88, 89, 90, 91, 92, 93, 213, 214,
                 .reg = PAD_FUNCTION_EN_2,                       \
                 .mask = PMX_MCIFALL_2_MASK,                     \
                 .val = PMX_MCIFALL_2_MASK,                      \
+        }, {                                                    \
+                .reg = PAD_DIRECTION_SEL_0,                     \
+                .mask = PMX_MCI_DATA8_15_MASK,                  \
+                .val = PMX_MCI_DATA8_15_MASK,                   \
+        }, {                                                    \
+                .reg = PAD_DIRECTION_SEL_1,                     \
+                .mask = PMX_MCIFALL_1_MASK | PMX_NFWPRT1_MASK | \
+                        PMX_NFWPRT2_MASK,                       \
+                .val = PMX_MCIFALL_1_MASK | PMX_NFWPRT1_MASK |  \
+                        PMX_NFWPRT2_MASK,                       \
+        }, {                                                    \
+                .reg = PAD_DIRECTION_SEL_2,                     \
+                .mask = PMX_MCIFALL_2_MASK,                     \
+                .val = PMX_MCIFALL_2_MASK,                      \
         }
 
 /* sdhci device */
@@ -1154,6 +1292,10 @@ static struct spear_muxreg touch_xy_muxreg[] = {
                 .reg = PAD_FUNCTION_EN_2,
                 .mask = PMX_TOUCH_XY_MASK,
                 .val = PMX_TOUCH_XY_MASK,
+        }, {
+                .reg = PAD_DIRECTION_SEL_2,
+                .mask = PMX_TOUCH_XY_MASK,
+                .val = PMX_TOUCH_XY_MASK,
         },
 };
 
@@ -1187,6 +1329,10 @@ static struct spear_muxreg uart1_dis_i2c_muxreg[] = {
                 .reg = PAD_FUNCTION_EN_0,
                 .mask = PMX_I2C0_MASK,
                 .val = 0,
+        }, {
+                .reg = PAD_DIRECTION_SEL_0,
+                .mask = PMX_I2C0_MASK,
+                .val = PMX_I2C0_MASK,
         },
 };
 
@@ -1213,6 +1359,12 @@ static struct spear_muxreg uart1_dis_sd_muxreg[] = {
                 .mask = PMX_MCIDATA1_MASK |
                         PMX_MCIDATA2_MASK,
                 .val = 0,
+        }, {
+                .reg = PAD_DIRECTION_SEL_1,
+                .mask = PMX_MCIDATA1_MASK |
+                        PMX_MCIDATA2_MASK,
+                .val = PMX_MCIDATA1_MASK |
+                        PMX_MCIDATA2_MASK,
         },
 };
 
@@ -1246,6 +1398,10 @@ static struct spear_muxreg uart2_3_muxreg[] = {
                 .reg = PAD_FUNCTION_EN_0,
                 .mask = PMX_I2S0_MASK,
                 .val = 0,
+        }, {
+                .reg = PAD_DIRECTION_SEL_0,
+                .mask = PMX_I2S0_MASK,
+                .val = PMX_I2S0_MASK,
         },
 };
 
@@ -1278,6 +1434,10 @@ static struct spear_muxreg uart4_muxreg[] = {
                 .reg = PAD_FUNCTION_EN_0,
                 .mask = PMX_I2S0_MASK | PMX_CLCD1_MASK,
                 .val = 0,
+        }, {
+                .reg = PAD_DIRECTION_SEL_0,
+                .mask = PMX_I2S0_MASK | PMX_CLCD1_MASK,
+                .val = PMX_I2S0_MASK | PMX_CLCD1_MASK,
         },
 };
 
@@ -1310,6 +1470,10 @@ static struct spear_muxreg uart5_muxreg[] = {
                 .reg = PAD_FUNCTION_EN_0,
                 .mask = PMX_CLCD1_MASK,
                 .val = 0,
+        }, {
+                .reg = PAD_DIRECTION_SEL_0,
+                .mask = PMX_CLCD1_MASK,
+                .val = PMX_CLCD1_MASK,
         },
 };
 
@@ -1344,6 +1508,10 @@ static struct spear_muxreg rs485_0_1_tdm_0_1_muxreg[] = {
                 .reg = PAD_FUNCTION_EN_0,
                 .mask = PMX_CLCD1_MASK,
                 .val = 0,
+        }, {
+                .reg = PAD_DIRECTION_SEL_0,
+                .mask = PMX_CLCD1_MASK,
+                .val = PMX_CLCD1_MASK,
         },
 };
 
@@ -1376,6 +1544,10 @@ static struct spear_muxreg i2c_1_2_muxreg[] = {
                 .reg = PAD_FUNCTION_EN_0,
                 .mask = PMX_CLCD1_MASK,
                 .val = 0,
+        }, {
+                .reg = PAD_DIRECTION_SEL_0,
+                .mask = PMX_CLCD1_MASK,
+                .val = PMX_CLCD1_MASK,
         },
 };
 
@@ -1409,6 +1581,10 @@ static struct spear_muxreg i2c3_dis_smi_clcd_muxreg[] = {
                 .reg = PAD_FUNCTION_EN_0,
                 .mask = PMX_CLCD1_MASK | PMX_SMI_MASK,
                 .val = 0,
+        }, {
+                .reg = PAD_DIRECTION_SEL_0,
+                .mask = PMX_CLCD1_MASK | PMX_SMI_MASK,
+                .val = PMX_CLCD1_MASK | PMX_SMI_MASK,
         },
 };
 
@@ -1435,6 +1611,10 @@ static struct spear_muxreg i2c3_dis_sd_i2s0_muxreg[] = {
                 .reg = PAD_FUNCTION_EN_1,
                 .mask = PMX_I2S1_MASK | PMX_MCIDATA3_MASK,
                 .val = 0,
+        }, {
+                .reg = PAD_DIRECTION_SEL_1,
+                .mask = PMX_I2S1_MASK | PMX_MCIDATA3_MASK,
+                .val = PMX_I2S1_MASK | PMX_MCIDATA3_MASK,
         },
 };
 
@@ -1469,6 +1649,10 @@ static struct spear_muxreg i2c_4_5_dis_smi_muxreg[] = {
                 .reg = PAD_FUNCTION_EN_0,
                 .mask = PMX_SMI_MASK,
                 .val = 0,
+        }, {
+                .reg = PAD_DIRECTION_SEL_0,
+                .mask = PMX_SMI_MASK,
+                .val = PMX_SMI_MASK,
         },
 };
 
@@ -1499,6 +1683,14 @@ static struct spear_muxreg i2c4_dis_sd_muxreg[] = {
                 .reg = PAD_FUNCTION_EN_2,
                 .mask = PMX_MCIDATA5_MASK,
                 .val = 0,
+        }, {
+                .reg = PAD_DIRECTION_SEL_1,
+                .mask = PMX_MCIDATA4_MASK,
+                .val = PMX_MCIDATA4_MASK,
+        }, {
+                .reg = PAD_DIRECTION_SEL_2,
+                .mask = PMX_MCIDATA5_MASK,
+                .val = PMX_MCIDATA5_MASK,
         },
 };
 
@@ -1526,6 +1718,12 @@ static struct spear_muxreg i2c5_dis_sd_muxreg[] = {
                 .mask = PMX_MCIDATA6_MASK |
                         PMX_MCIDATA7_MASK,
                 .val = 0,
+        }, {
+                .reg = PAD_DIRECTION_SEL_2,
+                .mask = PMX_MCIDATA6_MASK |
+                        PMX_MCIDATA7_MASK,
+                .val = PMX_MCIDATA6_MASK |
+                        PMX_MCIDATA7_MASK,
         },
 };
 
@@ -1560,6 +1758,10 @@ static struct spear_muxreg i2c_6_7_dis_kbd_muxreg[] = {
                 .reg = PAD_FUNCTION_EN_1,
                 .mask = PMX_KBD_ROWCOL25_MASK,
                 .val = 0,
+        }, {
+                .reg = PAD_DIRECTION_SEL_1,
+                .mask = PMX_KBD_ROWCOL25_MASK,
+                .val = PMX_KBD_ROWCOL25_MASK,
         },
 };
 
@@ -1587,6 +1789,12 @@ static struct spear_muxreg i2c6_dis_sd_muxreg[] = {
                 .mask = PMX_MCIIORDRE_MASK |
                         PMX_MCIIOWRWE_MASK,
                 .val = 0,
+        }, {
+                .reg = PAD_DIRECTION_SEL_2,
+                .mask = PMX_MCIIORDRE_MASK |
+                        PMX_MCIIOWRWE_MASK,
+                .val = PMX_MCIIORDRE_MASK |
+                        PMX_MCIIOWRWE_MASK,
         },
 };
 
@@ -1613,6 +1821,12 @@ static struct spear_muxreg i2c7_dis_sd_muxreg[] = {
                 .mask = PMX_MCIRESETCF_MASK |
                         PMX_MCICS0CE_MASK,
                 .val = 0,
+        }, {
+                .reg = PAD_DIRECTION_SEL_2,
+                .mask = PMX_MCIRESETCF_MASK |
+                        PMX_MCICS0CE_MASK,
+                .val = PMX_MCIRESETCF_MASK |
+                        PMX_MCICS0CE_MASK,
         },
 };
 
@@ -1651,6 +1865,14 @@ static struct spear_muxreg can0_dis_nor_muxreg[] = {
                 .reg = PAD_FUNCTION_EN_1,
                 .mask = PMX_NFRSTPWDWN3_MASK,
                 .val = 0,
+        }, {
+                .reg = PAD_DIRECTION_SEL_0,
+                .mask = PMX_NFRSTPWDWN2_MASK,
+                .val = PMX_NFRSTPWDWN2_MASK,
+        }, {
+                .reg = PAD_DIRECTION_SEL_1,
+                .mask = PMX_NFRSTPWDWN3_MASK,
+                .val = PMX_NFRSTPWDWN3_MASK,
         },
 };
 
@@ -1677,6 +1899,10 @@ static struct spear_muxreg can0_dis_sd_muxreg[] = {
                 .reg = PAD_FUNCTION_EN_2,
                 .mask = PMX_MCICFINTR_MASK | PMX_MCIIORDY_MASK,
                 .val = 0,
+        }, {
+                .reg = PAD_DIRECTION_SEL_2,
+                .mask = PMX_MCICFINTR_MASK | PMX_MCIIORDY_MASK,
+                .val = PMX_MCICFINTR_MASK | PMX_MCIIORDY_MASK,
         },
 };
 
@@ -1711,6 +1937,10 @@ static struct spear_muxreg can1_dis_sd_muxreg[] = {
                 .reg = PAD_FUNCTION_EN_2,
                 .mask = PMX_MCICS1_MASK | PMX_MCIDMAACK_MASK,
                 .val = 0,
+        }, {
+                .reg = PAD_DIRECTION_SEL_2,
+                .mask = PMX_MCICS1_MASK | PMX_MCIDMAACK_MASK,
+                .val = PMX_MCICS1_MASK | PMX_MCIDMAACK_MASK,
         },
 };
 
@@ -1737,6 +1967,10 @@ static struct spear_muxreg can1_dis_kbd_muxreg[] = {
                 .reg = PAD_FUNCTION_EN_1,
                 .mask = PMX_KBD_ROWCOL25_MASK,
                 .val = 0,
+        }, {
+                .reg = PAD_DIRECTION_SEL_1,
+                .mask = PMX_KBD_ROWCOL25_MASK,
+                .val = PMX_KBD_ROWCOL25_MASK,
         },
 };
 
@@ -1763,29 +1997,64 @@ static struct spear_function can1_function = {
         .ngroups = ARRAY_SIZE(can1_grps),
 };
 
-/* Pad multiplexing for pci device */
-static const unsigned pci_sata_pins[] = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 18,
+/* Pad multiplexing for (ras-ip) pci device */
+static const unsigned pci_pins[] = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 18,
         19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36,
         37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54,
         55, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99 };
-#define PCI_SATA_MUXREG                         \
-        {                                       \
-                .reg = PAD_FUNCTION_EN_0,       \
-                .mask = PMX_MCI_DATA8_15_MASK,  \
-                .val = 0,                       \
-        }, {                                    \
-                .reg = PAD_FUNCTION_EN_1,       \
-                .mask = PMX_PCI_REG1_MASK,      \
-                .val = 0,                       \
-        }, {                                    \
-                .reg = PAD_FUNCTION_EN_2,       \
-                .mask = PMX_PCI_REG2_MASK,      \
-                .val = 0,                       \
-        }
 
-/* pad multiplexing for pcie0 device */
+static struct spear_muxreg pci_muxreg[] = {
+        {
+                .reg = PAD_FUNCTION_EN_0,
+                .mask = PMX_MCI_DATA8_15_MASK,
+                .val = 0,
+        }, {
+                .reg = PAD_FUNCTION_EN_1,
+                .mask = PMX_PCI_REG1_MASK,
+                .val = 0,
+        }, {
+                .reg = PAD_FUNCTION_EN_2,
+                .mask = PMX_PCI_REG2_MASK,
+                .val = 0,
+        }, {
+                .reg = PAD_DIRECTION_SEL_0,
+                .mask = PMX_MCI_DATA8_15_MASK,
+                .val = PMX_MCI_DATA8_15_MASK,
+        }, {
+                .reg = PAD_DIRECTION_SEL_1,
+                .mask = PMX_PCI_REG1_MASK,
+                .val = PMX_PCI_REG1_MASK,
+        }, {
+                .reg = PAD_DIRECTION_SEL_2,
+                .mask = PMX_PCI_REG2_MASK,
+                .val = PMX_PCI_REG2_MASK,
+        },
+};
+
+static struct spear_modemux pci_modemux[] = {
+        {
+                .muxregs = pci_muxreg,
+                .nmuxregs = ARRAY_SIZE(pci_muxreg),
+        },
+};
+
+static struct spear_pingroup pci_pingroup = {
+        .name = "pci_grp",
+        .pins = pci_pins,
+        .npins = ARRAY_SIZE(pci_pins),
+        .modemuxs = pci_modemux,
+        .nmodemuxs = ARRAY_SIZE(pci_modemux),
+};
+
+static const char *const pci_grps[] = { "pci_grp" };
+static struct spear_function pci_function = {
+        .name = "pci",
+        .groups = pci_grps,
+        .ngroups = ARRAY_SIZE(pci_grps),
+};
+
+/* pad multiplexing for (fix-part) pcie0 device */
 static struct spear_muxreg pcie0_muxreg[] = {
-        PCI_SATA_MUXREG,
         {
                 .reg = PCIE_SATA_CFG,
                 .mask = PCIE_CFG_VAL(0),
@@ -1802,15 +2071,12 @@ static struct spear_modemux pcie0_modemux[] = {
 
 static struct spear_pingroup pcie0_pingroup = {
         .name = "pcie0_grp",
-        .pins = pci_sata_pins,
-        .npins = ARRAY_SIZE(pci_sata_pins),
         .modemuxs = pcie0_modemux,
         .nmodemuxs = ARRAY_SIZE(pcie0_modemux),
 };
 
-/* pad multiplexing for pcie1 device */
+/* pad multiplexing for (fix-part) pcie1 device */
 static struct spear_muxreg pcie1_muxreg[] = {
-        PCI_SATA_MUXREG,
         {
                 .reg = PCIE_SATA_CFG,
                 .mask = PCIE_CFG_VAL(1),
@@ -1827,15 +2093,12 @@ static struct spear_modemux pcie1_modemux[] = {
 
 static struct spear_pingroup pcie1_pingroup = {
         .name = "pcie1_grp",
-        .pins = pci_sata_pins,
-        .npins = ARRAY_SIZE(pci_sata_pins),
         .modemuxs = pcie1_modemux,
         .nmodemuxs = ARRAY_SIZE(pcie1_modemux),
 };
 
-/* pad multiplexing for pcie2 device */
+/* pad multiplexing for (fix-part) pcie2 device */
 static struct spear_muxreg pcie2_muxreg[] = {
-        PCI_SATA_MUXREG,
         {
                 .reg = PCIE_SATA_CFG,
                 .mask = PCIE_CFG_VAL(2),
@@ -1852,22 +2115,20 @@ static struct spear_modemux pcie2_modemux[] = {
 
 static struct spear_pingroup pcie2_pingroup = {
         .name = "pcie2_grp",
-        .pins = pci_sata_pins,
-        .npins = ARRAY_SIZE(pci_sata_pins),
         .modemuxs = pcie2_modemux,
         .nmodemuxs = ARRAY_SIZE(pcie2_modemux),
 };
 
-static const char *const pci_grps[] = { "pcie0_grp", "pcie1_grp", "pcie2_grp" };
-static struct spear_function pci_function = {
-        .name = "pci",
-        .groups = pci_grps,
-        .ngroups = ARRAY_SIZE(pci_grps),
+static const char *const pcie_grps[] = { "pcie0_grp", "pcie1_grp", "pcie2_grp"
+};
+static struct spear_function pcie_function = {
+        .name = "pci_express",
+        .groups = pcie_grps,
+        .ngroups = ARRAY_SIZE(pcie_grps),
 };
 
 /* pad multiplexing for sata0 device */
 static struct spear_muxreg sata0_muxreg[] = {
-        PCI_SATA_MUXREG,
         {
                 .reg = PCIE_SATA_CFG,
                 .mask = SATA_CFG_VAL(0),
@@ -1884,15 +2145,12 @@ static struct spear_modemux sata0_modemux[] = {
 
 static struct spear_pingroup sata0_pingroup = {
         .name = "sata0_grp",
-        .pins = pci_sata_pins,
-        .npins = ARRAY_SIZE(pci_sata_pins),
         .modemuxs = sata0_modemux,
         .nmodemuxs = ARRAY_SIZE(sata0_modemux),
 };
 
 /* pad multiplexing for sata1 device */
 static struct spear_muxreg sata1_muxreg[] = {
-        PCI_SATA_MUXREG,
         {
                 .reg = PCIE_SATA_CFG,
                 .mask = SATA_CFG_VAL(1),
@@ -1909,15 +2167,12 @@ static struct spear_modemux sata1_modemux[] = {
 
 static struct spear_pingroup sata1_pingroup = {
         .name = "sata1_grp",
-        .pins = pci_sata_pins,
-        .npins = ARRAY_SIZE(pci_sata_pins),
         .modemuxs = sata1_modemux,
         .nmodemuxs = ARRAY_SIZE(sata1_modemux),
 };
 
 /* pad multiplexing for sata2 device */
 static struct spear_muxreg sata2_muxreg[] = {
-        PCI_SATA_MUXREG,
         {
                 .reg = PCIE_SATA_CFG,
                 .mask = SATA_CFG_VAL(2),
@@ -1934,8 +2189,6 @@ static struct spear_modemux sata2_modemux[] = {
 
 static struct spear_pingroup sata2_pingroup = {
         .name = "sata2_grp",
-        .pins = pci_sata_pins,
-        .npins = ARRAY_SIZE(pci_sata_pins),
         .modemuxs = sata2_modemux,
         .nmodemuxs = ARRAY_SIZE(sata2_modemux),
 };
@@ -1957,6 +2210,14 @@ static struct spear_muxreg ssp1_dis_kbd_muxreg[] = {
                         PMX_KBD_COL0_MASK | PMX_NFIO8_15_MASK | PMX_NFCE1_MASK |
                         PMX_NFCE2_MASK,
                 .val = 0,
+        }, {
+                .reg = PAD_DIRECTION_SEL_1,
+                .mask = PMX_KBD_ROWCOL25_MASK | PMX_KBD_COL1_MASK |
+                        PMX_KBD_COL0_MASK | PMX_NFIO8_15_MASK | PMX_NFCE1_MASK |
+                        PMX_NFCE2_MASK,
+                .val = PMX_KBD_ROWCOL25_MASK | PMX_KBD_COL1_MASK |
+                        PMX_KBD_COL0_MASK | PMX_NFIO8_15_MASK | PMX_NFCE1_MASK |
+                        PMX_NFCE2_MASK,
         },
 };
 
@@ -1983,6 +2244,12 @@ static struct spear_muxreg ssp1_dis_sd_muxreg[] = {
                 .mask = PMX_MCIADDR0ALE_MASK | PMX_MCIADDR2_MASK |
                         PMX_MCICECF_MASK | PMX_MCICEXD_MASK,
                 .val = 0,
+        }, {
+                .reg = PAD_DIRECTION_SEL_2,
+                .mask = PMX_MCIADDR0ALE_MASK | PMX_MCIADDR2_MASK |
+                        PMX_MCICECF_MASK | PMX_MCICEXD_MASK,
+                .val = PMX_MCIADDR0ALE_MASK | PMX_MCIADDR2_MASK |
+                        PMX_MCICECF_MASK | PMX_MCICEXD_MASK,
         },
 };
 
@@ -2017,6 +2284,12 @@ static struct spear_muxreg gpt64_muxreg[] = {
                 .mask = PMX_MCICDCF1_MASK | PMX_MCICDCF2_MASK | PMX_MCICDXD_MASK
                         | PMX_MCILEDS_MASK,
                 .val = 0,
+        }, {
+                .reg = PAD_DIRECTION_SEL_2,
+                .mask = PMX_MCICDCF1_MASK | PMX_MCICDCF2_MASK | PMX_MCICDXD_MASK
+                        | PMX_MCILEDS_MASK,
+                .val = PMX_MCICDCF1_MASK | PMX_MCICDCF2_MASK | PMX_MCICDXD_MASK
+                        | PMX_MCILEDS_MASK,
         },
 };
 
@@ -2093,6 +2366,7 @@ static struct spear_pingroup *spear1310_pingroups[] = {
         &can0_dis_sd_pingroup,
         &can1_dis_sd_pingroup,
         &can1_dis_kbd_pingroup,
+        &pci_pingroup,
         &pcie0_pingroup,
         &pcie1_pingroup,
         &pcie2_pingroup,
@@ -2138,6 +2412,7 @@ static struct spear_function *spear1310_functions[] = {
         &can0_function,
         &can1_function,
         &pci_function,
+        &pcie_function,
         &sata_function,
         &ssp1_function,
         &gpt64_function,
diff --git a/drivers/pinctrl/spear/pinctrl-spear1340.c b/drivers/pinctrl/spear/pinctrl-spear1340.c
index a0eb057e55bd..0606b8cf3f2c 100644
--- a/drivers/pinctrl/spear/pinctrl-spear1340.c
+++ b/drivers/pinctrl/spear/pinctrl-spear1340.c
@@ -213,7 +213,7 @@ static const struct pinctrl_pin_desc spear1340_pins[] = {
  * Pad multiplexing for making all pads as gpio's. This is done to override the
  * values passed from bootloader and start from scratch.
  */
-static const unsigned pads_as_gpio_pins[] = { 251 };
+static const unsigned pads_as_gpio_pins[] = { 12, 88, 89, 251 };
 static struct spear_muxreg pads_as_gpio_muxreg[] = {
         {
                 .reg = PAD_FUNCTION_EN_1,
@@ -1692,7 +1692,43 @@ static struct spear_pingroup clcd_pingroup = {
         .nmodemuxs = ARRAY_SIZE(clcd_modemux),
 };
 
-static const char *const clcd_grps[] = { "clcd_grp" };
+/* Disable cld runtime to save panel damage */
+static struct spear_muxreg clcd_sleep_muxreg[] = {
+        {
+                .reg = PAD_SHARED_IP_EN_1,
+                .mask = ARM_TRACE_MASK | MIPHY_DBG_MASK,
+                .val = 0,
+        }, {
+                .reg = PAD_FUNCTION_EN_5,
+                .mask = CLCD_REG4_MASK | CLCD_AND_ARM_TRACE_REG4_MASK,
+                .val = 0x0,
+        }, {
+                .reg = PAD_FUNCTION_EN_6,
+                .mask = CLCD_AND_ARM_TRACE_REG5_MASK,
+                .val = 0x0,
+        }, {
+                .reg = PAD_FUNCTION_EN_7,
+                .mask = CLCD_AND_ARM_TRACE_REG6_MASK,
+                .val = 0x0,
+        },
+};
+
+static struct spear_modemux clcd_sleep_modemux[] = {
+        {
+                .muxregs = clcd_sleep_muxreg,
+                .nmuxregs = ARRAY_SIZE(clcd_sleep_muxreg),
+        },
+};
+
+static struct spear_pingroup clcd_sleep_pingroup = {
+        .name = "clcd_sleep_grp",
+        .pins = clcd_pins,
+        .npins = ARRAY_SIZE(clcd_pins),
+        .modemuxs = clcd_sleep_modemux,
+        .nmodemuxs = ARRAY_SIZE(clcd_sleep_modemux),
+};
+
+static const char *const clcd_grps[] = { "clcd_grp", "clcd_sleep_grp" };
 static struct spear_function clcd_function = {
         .name = "clcd",
         .groups = clcd_grps,
@@ -1893,6 +1929,7 @@ static struct spear_pingroup *spear1340_pingroups[] = {
         &sdhci_pingroup,
         &cf_pingroup,
         &xd_pingroup,
+        &clcd_sleep_pingroup,
         &clcd_pingroup,
         &arm_trace_pingroup,
         &miphy_dbg_pingroup,
diff --git a/drivers/pinctrl/spear/pinctrl-spear320.c b/drivers/pinctrl/spear/pinctrl-spear320.c
index 020b1e0bdb3e..ca47b0e50780 100644
--- a/drivers/pinctrl/spear/pinctrl-spear320.c
+++ b/drivers/pinctrl/spear/pinctrl-spear320.c
@@ -2240,6 +2240,10 @@ static struct spear_muxreg pwm2_pin_34_muxreg[] = {
                 .mask = PMX_SSP_CS_MASK,
                 .val = 0,
         }, {
+                .reg = MODE_CONFIG_REG,
+                .mask = PMX_PWM_MASK,
+                .val = PMX_PWM_MASK,
+        }, {
                 .reg = IP_SEL_PAD_30_39_REG,
                 .mask = PMX_PL_34_MASK,
                 .val = PMX_PWM2_PL_34_VAL,
@@ -2956,9 +2960,9 @@ static struct spear_function mii2_function = {
 };
 
 /* Pad multiplexing for cadence mii 1_2 as smii or rmii device */
-static const unsigned smii0_1_pins[] = { 10, 11, 13, 14, 15, 16, 17, 18, 19, 20,
+static const unsigned rmii0_1_pins[] = { 10, 11, 13, 14, 15, 16, 17, 18, 19, 20,
         21, 22, 23, 24, 25, 26, 27 };
-static const unsigned rmii0_1_pins[] = { 10, 11, 21, 22, 23, 24, 25, 26, 27 };
+static const unsigned smii0_1_pins[] = { 10, 11, 21, 22, 23, 24, 25, 26, 27 };
 static struct spear_muxreg mii0_1_muxreg[] = {
         {
                 .reg = PMX_CONFIG_REG,
diff --git a/drivers/pinctrl/spear/pinctrl-spear3xx.h b/drivers/pinctrl/spear/pinctrl-spear3xx.h
index 31f44347f17c..7860b36053c4 100644
--- a/drivers/pinctrl/spear/pinctrl-spear3xx.h
+++ b/drivers/pinctrl/spear/pinctrl-spear3xx.h
@@ -15,6 +15,7 @@
 #include "pinctrl-spear.h"
 
 /* pad mux declarations */
+#define PMX_PWM_MASK            (1 << 16)
 #define PMX_FIRDA_MASK          (1 << 14)
 #define PMX_I2C_MASK            (1 << 13)
 #define PMX_SSP_CS_MASK         (1 << 12)
diff --git a/drivers/rapidio/rio.c b/drivers/rapidio/rio.c
index c17ae22567e0..0c6fcb461faf 100644
--- a/drivers/rapidio/rio.c
+++ b/drivers/rapidio/rio.c
@@ -401,7 +401,7 @@ EXPORT_SYMBOL_GPL(rio_release_inb_pwrite);
 /**
  * rio_map_inb_region -- Map inbound memory region.
  * @mport: Master port.
- * @lstart: physical address of memory region to be mapped
+ * @local: physical address of memory region to be mapped
  * @rbase: RIO base address assigned to this window
  * @size: Size of the memory region
  * @rflags: Flags for mapping.
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 5c4829cba6a6..e872c8be080e 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -1381,22 +1381,14 @@ struct regulator *regulator_get_exclusive(struct device *dev, const char *id)
 }
 EXPORT_SYMBOL_GPL(regulator_get_exclusive);
 
-/**
- * regulator_put - "free" the regulator source
- * @regulator: regulator source
- *
- * Note: drivers must ensure that all regulator_enable calls made on this
- * regulator source are balanced by regulator_disable calls prior to calling
- * this function.
- */
-void regulator_put(struct regulator *regulator)
+/* Locks held by regulator_put() */
+static void _regulator_put(struct regulator *regulator)
 {
         struct regulator_dev *rdev;
 
         if (regulator == NULL || IS_ERR(regulator))
                 return;
 
-        mutex_lock(&regulator_list_mutex);
         rdev = regulator->rdev;
 
         debugfs_remove_recursive(regulator->debugfs);
@@ -1412,6 +1404,20 @@ void regulator_put(struct regulator *regulator)
         rdev->exclusive = 0;
 
         module_put(rdev->owner);
+}
+
+/**
+ * regulator_put - "free" the regulator source
+ * @regulator: regulator source
+ *
+ * Note: drivers must ensure that all regulator_enable calls made on this
+ * regulator source are balanced by regulator_disable calls prior to calling
+ * this function.
+ */
+void regulator_put(struct regulator *regulator)
+{
+        mutex_lock(&regulator_list_mutex);
+        _regulator_put(regulator);
         mutex_unlock(&regulator_list_mutex);
 }
 EXPORT_SYMBOL_GPL(regulator_put);
@@ -1974,7 +1980,7 @@ int regulator_is_supported_voltage(struct regulator *regulator,
         if (!(rdev->constraints->valid_ops_mask & REGULATOR_CHANGE_VOLTAGE)) {
                 ret = regulator_get_voltage(regulator);
                 if (ret >= 0)
-                        return (min_uV >= ret && ret <= max_uV);
+                        return (min_uV <= ret && ret <= max_uV);
                 else
                         return ret;
         }
@@ -3365,7 +3371,7 @@ regulator_register(const struct regulator_desc *regulator_desc,
                 if (ret != 0) {
                         rdev_err(rdev, "Failed to request enable GPIO%d: %d\n",
                                  config->ena_gpio, ret);
-                        goto clean;
+                        goto wash;
                 }
 
                 rdev->ena_gpio = config->ena_gpio;
@@ -3445,10 +3451,11 @@ unset_supplies:
 
 scrub:
         if (rdev->supply)
-                regulator_put(rdev->supply);
+                _regulator_put(rdev->supply);
         if (rdev->ena_gpio)
                 gpio_free(rdev->ena_gpio);
         kfree(rdev->constraints);
+wash:
         device_unregister(&rdev->dev);
         /* device core frees rdev */
         rdev = ERR_PTR(ret);
diff --git a/drivers/s390/char/con3215.c b/drivers/s390/char/con3215.c
index 9ffb6d5f17aa..4ed343e4eb41 100644
--- a/drivers/s390/char/con3215.c
+++ b/drivers/s390/char/con3215.c
@@ -44,7 +44,6 @@
 #define RAW3215_NR_CCWS     3
 #define RAW3215_TIMEOUT     HZ/10     /* time for delayed output */
 
-#define RAW3215_FIXED       1         /* 3215 console device is not be freed */
 #define RAW3215_WORKING     4         /* set if a request is being worked on */
 #define RAW3215_THROTTLED   8         /* set if reading is disabled */
 #define RAW3215_STOPPED     16        /* set if writing is disabled */
@@ -339,8 +338,10 @@ static void raw3215_wakeup(unsigned long data)
         struct tty_struct *tty;
 
         tty = tty_port_tty_get(&raw->port);
-        tty_wakeup(tty);
-        tty_kref_put(tty);
+        if (tty) {
+                tty_wakeup(tty);
+                tty_kref_put(tty);
+        }
 }
 
 /*
@@ -629,8 +630,7 @@ static void raw3215_shutdown(struct raw3215_info *raw)
         DECLARE_WAITQUEUE(wait, current);
         unsigned long flags;
 
-        if (!(raw->port.flags & ASYNC_INITIALIZED) ||
-                        (raw->flags & RAW3215_FIXED))
+        if (!(raw->port.flags & ASYNC_INITIALIZED))
                 return;
         /* Wait for outstanding requests, then free irq */
         spin_lock_irqsave(get_ccwdev_lock(raw->cdev), flags);
@@ -926,8 +926,6 @@ static int __init con3215_init(void)
         dev_set_drvdata(&cdev->dev, raw);
         cdev->handler = raw3215_irq;
 
-        raw->flags |= RAW3215_FIXED;
-
         /* Request the console irq */
         if (raw3215_startup(raw) != 0) {
                 raw3215_free_info(raw);
diff --git a/drivers/s390/cio/css.h b/drivers/s390/cio/css.h
index 33bb4d891e16..4af3dfe70ef5 100644
--- a/drivers/s390/cio/css.h
+++ b/drivers/s390/cio/css.h
@@ -112,9 +112,6 @@ extern int for_each_subchannel(int(*fn)(struct subchannel_id, void *), void *);
 extern void css_reiterate_subchannels(void);
 void css_update_ssd_info(struct subchannel *sch);
 
-#define __MAX_SUBCHANNEL 65535
-#define __MAX_SSID 3
-
 struct channel_subsystem {
         u8 cssid;
         int valid;
diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c
index fc916f5d7314..fd3143c291c6 100644
--- a/drivers/s390/cio/device.c
+++ b/drivers/s390/cio/device.c
@@ -1424,7 +1424,7 @@ static enum io_sch_action sch_get_action(struct subchannel *sch)
         }
         if (device_is_disconnected(cdev))
                 return IO_SCH_REPROBE;
-        if (cdev->online)
+        if (cdev->online && !cdev->private->flags.resuming)
                 return IO_SCH_VERIFY;
         if (cdev->private->state == DEV_STATE_NOT_OPER)
                 return IO_SCH_UNREG_ATTACH;
@@ -1469,12 +1469,6 @@ static int io_subchannel_sch_event(struct subchannel *sch, int process)
                 rc = 0;
                 goto out_unlock;
         case IO_SCH_VERIFY:
-                if (cdev->private->flags.resuming == 1) {
-                        if (cio_enable_subchannel(sch, (u32)(addr_t)sch)) {
-                                ccw_device_set_notoper(cdev);
-                                break;
-                        }
-                }
                 /* Trigger path verification. */
                 io_subchannel_verify(sch);
                 rc = 0;
diff --git a/drivers/s390/cio/idset.c b/drivers/s390/cio/idset.c
index 199bc6791177..65d13e38803f 100644
--- a/drivers/s390/cio/idset.c
+++ b/drivers/s390/cio/idset.c
@@ -125,8 +125,7 @@ int idset_is_empty(struct idset *set)
 
 void idset_add_set(struct idset *to, struct idset *from)
 {
-        int len = min(__BITOPS_WORDS(to->num_ssid * to->num_id),
-                      __BITOPS_WORDS(from->num_ssid * from->num_id));
+        int len = min(to->num_ssid * to->num_id, from->num_ssid * from->num_id);
 
         bitmap_or(to->bitmap, to->bitmap, from->bitmap, len);
 }
diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c
index 3e25d3150456..4d6ba00d0047 100644
--- a/drivers/s390/net/qeth_core_main.c
+++ b/drivers/s390/net/qeth_core_main.c
@@ -2942,13 +2942,33 @@ static int qeth_query_ipassists_cb(struct qeth_card *card,
         QETH_DBF_TEXT(SETUP, 2, "qipasscb");
 
         cmd = (struct qeth_ipa_cmd *) data;
+
+        switch (cmd->hdr.return_code) {
+        case IPA_RC_NOTSUPP:
+        case IPA_RC_L2_UNSUPPORTED_CMD:
+                QETH_DBF_TEXT(SETUP, 2, "ipaunsup");
+                card->options.ipa4.supported_funcs |= IPA_SETADAPTERPARMS;
+                card->options.ipa6.supported_funcs |= IPA_SETADAPTERPARMS;
+                return -0;
+        default:
+                if (cmd->hdr.return_code) {
+                        QETH_DBF_MESSAGE(1, "%s IPA_CMD_QIPASSIST: Unhandled "
+                                                "rc=%d\n",
+                                                dev_name(&card->gdev->dev),
+                                                cmd->hdr.return_code);
+                        return 0;
+                }
+        }
+
         if (cmd->hdr.prot_version == QETH_PROT_IPV4) {
                 card->options.ipa4.supported_funcs = cmd->hdr.ipa_supported;
                 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
-        } else {
+        } else if (cmd->hdr.prot_version == QETH_PROT_IPV6) {
                 card->options.ipa6.supported_funcs = cmd->hdr.ipa_supported;
                 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
-        }
+        } else
+                QETH_DBF_MESSAGE(1, "%s IPA_CMD_QIPASSIST: Flawed LIC detected"
+                                        "\n", dev_name(&card->gdev->dev));
         QETH_DBF_TEXT(SETUP, 2, "suppenbl");
         QETH_DBF_TEXT_(SETUP, 2, "%08x", (__u32)cmd->hdr.ipa_supported);
         QETH_DBF_TEXT_(SETUP, 2, "%08x", (__u32)cmd->hdr.ipa_enabled);
diff --git a/drivers/s390/net/qeth_l2_main.c b/drivers/s390/net/qeth_l2_main.c
index e67e0258aec5..fddb62654b6a 100644
--- a/drivers/s390/net/qeth_l2_main.c
+++ b/drivers/s390/net/qeth_l2_main.c
@@ -626,10 +626,13 @@ static int qeth_l2_request_initial_mac(struct qeth_card *card)
         QETH_DBF_TEXT(SETUP, 2, "doL2init");
         QETH_DBF_TEXT_(SETUP, 2, "doL2%s", CARD_BUS_ID(card));
 
-        rc = qeth_query_setadapterparms(card);
-        if (rc) {
-                QETH_DBF_MESSAGE(2, "could not query adapter parameters on "
-                        "device %s: x%x\n", CARD_BUS_ID(card), rc);
+        if (qeth_is_supported(card, IPA_SETADAPTERPARMS)) {
+                rc = qeth_query_setadapterparms(card);
+                if (rc) {
+                        QETH_DBF_MESSAGE(2, "could not query adapter "
+                                "parameters on device %s: x%x\n",
+                                CARD_BUS_ID(card), rc);
+                }
         }
 
         if (card->info.type == QETH_CARD_TYPE_IQD ||
@@ -676,7 +679,7 @@ static int qeth_l2_set_mac_address(struct net_device *dev, void *p)
                 return -ERESTARTSYS;
         }
         rc = qeth_l2_send_delmac(card, &card->dev->dev_addr[0]);
-        if (!rc)
+        if (!rc || (rc == IPA_RC_L2_MAC_NOT_FOUND))
                 rc = qeth_l2_send_setmac(card, addr->sa_data);
         return rc ? -EINVAL : 0;
 }
diff --git a/drivers/scsi/qlogicpti.c b/drivers/scsi/qlogicpti.c
index b191dd549207..71fddbc60f18 100644
--- a/drivers/scsi/qlogicpti.c
+++ b/drivers/scsi/qlogicpti.c
@@ -1294,26 +1294,19 @@ static struct scsi_host_template qpti_template = {
 static const struct of_device_id qpti_match[];
 static int __devinit qpti_sbus_probe(struct platform_device *op)
 {
-        const struct of_device_id *match;
-        struct scsi_host_template *tpnt;
         struct device_node *dp = op->dev.of_node;
         struct Scsi_Host *host;
         struct qlogicpti *qpti;
         static int nqptis;
         const char *fcode;
 
-        match = of_match_device(qpti_match, &op->dev);
-        if (!match)
-                return -EINVAL;
-        tpnt = match->data;
-
         /* Sometimes Antares cards come up not completely
          * setup, and we get a report of a zero IRQ.
          */
         if (op->archdata.irqs[0] == 0)
                 return -ENODEV;
 
-        host = scsi_host_alloc(tpnt, sizeof(struct qlogicpti));
+        host = scsi_host_alloc(&qpti_template, sizeof(struct qlogicpti));
         if (!host)
                 return -ENOMEM;
 
@@ -1445,19 +1438,15 @@ static int __devexit qpti_sbus_remove(struct platform_device *op)
 static const struct of_device_id qpti_match[] = {
         {
                 .name = "ptisp",
-                .data = &qpti_template,
         },
         {
                 .name = "PTI,ptisp",
-                .data = &qpti_template,
         },
         {
                 .name = "QLGC,isp",
-                .data = &qpti_template,
         },
         {
                 .name = "SUNW,isp",
-                .data = &qpti_template,
         },
         {},
 };
diff --git a/drivers/staging/android/android_alarm.h b/drivers/staging/android/android_alarm.h
index f2ffd963f1c3..d0cafd637199 100644
--- a/drivers/staging/android/android_alarm.h
+++ b/drivers/staging/android/android_alarm.h
@@ -51,12 +51,10 @@ enum android_alarm_return_flags {
 #define ANDROID_ALARM_WAIT                  _IO('a', 1)
 
 #define ALARM_IOW(c, type, size)            _IOW('a', (c) | ((type) << 4), size)
-#define ALARM_IOR(c, type, size)            _IOR('a', (c) | ((type) << 4), size)
-
 /* Set alarm */
 #define ANDROID_ALARM_SET(type)             ALARM_IOW(2, type, struct timespec)
 #define ANDROID_ALARM_SET_AND_WAIT(type)    ALARM_IOW(3, type, struct timespec)
-#define ANDROID_ALARM_GET_TIME(type)        ALARM_IOR(4, type, struct timespec)
+#define ANDROID_ALARM_GET_TIME(type)        ALARM_IOW(4, type, struct timespec)
 #define ANDROID_ALARM_SET_RTC               _IOW('a', 5, struct timespec)
 #define ANDROID_ALARM_BASE_CMD(cmd)         (cmd & ~(_IOC(0, 0, 0xf0, 0)))
 #define ANDROID_ALARM_IOCTL_TO_TYPE(cmd)    (_IOC_NR(cmd) >> 4)
diff --git a/drivers/thermal/exynos_thermal.c b/drivers/thermal/exynos_thermal.c
index fd03e8581afc..6dd29e4ce36b 100644
--- a/drivers/thermal/exynos_thermal.c
+++ b/drivers/thermal/exynos_thermal.c
@@ -815,7 +815,7 @@ static struct platform_device_id exynos_tmu_driver_ids[] = {
         },
         { },
 };
-MODULE_DEVICE_TABLE(platform, exynos4_tmu_driver_ids);
+MODULE_DEVICE_TABLE(platform, exynos_tmu_driver_ids);
 
 static inline struct  exynos_tmu_platform_data *exynos_get_driver_data(
                         struct platform_device *pdev)
diff --git a/drivers/thermal/rcar_thermal.c b/drivers/thermal/rcar_thermal.c
index d4452716aaab..f7a1b574a304 100644
--- a/drivers/thermal/rcar_thermal.c
+++ b/drivers/thermal/rcar_thermal.c
@@ -210,7 +210,7 @@ static int rcar_thermal_probe(struct platform_device *pdev)
                 goto error_free_priv;
         }
 
-        zone = thermal_zone_device_register("rcar_thermal", 0, priv,
+        zone = thermal_zone_device_register("rcar_thermal", 0, 0, priv,
                                             &rcar_thermal_zone_ops, 0, 0);
         if (IS_ERR(zone)) {
                 dev_err(&pdev->dev, "thermal zone device is NULL\n");
diff --git a/drivers/tty/hvc/hvc_console.c b/drivers/tty/hvc/hvc_console.c
index a5dec1ca1b82..13ee53bd0bf6 100644
--- a/drivers/tty/hvc/hvc_console.c
+++ b/drivers/tty/hvc/hvc_console.c
@@ -424,7 +424,6 @@ static void hvc_hangup(struct tty_struct *tty)
 {
         struct hvc_struct *hp = tty->driver_data;
         unsigned long flags;
-        int temp_open_count;
 
         if (!hp)
                 return;
@@ -444,7 +443,6 @@ static void hvc_hangup(struct tty_struct *tty)
                 return;
         }
 
-        temp_open_count = hp->port.count;
         hp->port.count = 0;
         spin_unlock_irqrestore(&hp->port.lock, flags);
         tty_port_tty_set(&hp->port, NULL);
@@ -453,11 +451,6 @@ static void hvc_hangup(struct tty_struct *tty)
 
         if (hp->ops->notifier_hangup)
                 hp->ops->notifier_hangup(hp, hp->data);
-
-        while(temp_open_count) {
-                --temp_open_count;
-                tty_port_put(&hp->port);
-        }
 }
 
 /*
diff --git a/drivers/tty/serial/max310x.c b/drivers/tty/serial/max310x.c
index 2bc28a59d385..1ab1d2c66de4 100644
--- a/drivers/tty/serial/max310x.c
+++ b/drivers/tty/serial/max310x.c
@@ -1239,6 +1239,7 @@ static int __devexit max310x_remove(struct spi_device *spi)
 static const struct spi_device_id max310x_id_table[] = {
         { "max3107",    MAX310X_TYPE_MAX3107 },
         { "max3108",    MAX310X_TYPE_MAX3108 },
+        { }
 };
 MODULE_DEVICE_TABLE(spi, max310x_id_table);
 
diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
index 1e741bca0265..f034716190ff 100644
--- a/drivers/usb/core/hcd.c
+++ b/drivers/usb/core/hcd.c
@@ -2151,8 +2151,15 @@ EXPORT_SYMBOL_GPL(usb_bus_start_enum);
 irqreturn_t usb_hcd_irq (int irq, void *__hcd)
 {
         struct usb_hcd          *hcd = __hcd;
+        unsigned long           flags;
         irqreturn_t             rc;
 
+        /* IRQF_DISABLED doesn't work correctly with shared IRQs
+         * when the first handler doesn't use it.  So let's just
+         * assume it's never used.
+         */
+        local_irq_save(flags);
+
         if (unlikely(HCD_DEAD(hcd) || !HCD_HW_ACCESSIBLE(hcd)))
                 rc = IRQ_NONE;
         else if (hcd->driver->irq(hcd) == IRQ_NONE)
@@ -2160,6 +2167,7 @@ irqreturn_t usb_hcd_irq (int irq, void *__hcd)
         else
                 rc = IRQ_HANDLED;
 
+        local_irq_restore(flags);
         return rc;
 }
 EXPORT_SYMBOL_GPL(usb_hcd_irq);
@@ -2347,6 +2355,14 @@ static int usb_hcd_request_irqs(struct usb_hcd *hcd,
         int retval;
 
         if (hcd->driver->irq) {
+
+                /* IRQF_DISABLED doesn't work as advertised when used together
+                 * with IRQF_SHARED. As usb_hcd_irq() will always disable
+                 * interrupts we can remove it here.
+                 */
+                if (irqflags & IRQF_SHARED)
+                        irqflags &= ~IRQF_DISABLED;
+
                 snprintf(hcd->irq_descr, sizeof(hcd->irq_descr), "%s:usb%d",
                                 hcd->driver->description, hcd->self.busnum);
                 retval = request_irq(irqnum, &usb_hcd_irq, irqflags,
diff --git a/drivers/usb/early/ehci-dbgp.c b/drivers/usb/early/ehci-dbgp.c
index e426ad626d74..4bfa78af379c 100644
--- a/drivers/usb/early/ehci-dbgp.c
+++ b/drivers/usb/early/ehci-dbgp.c
@@ -20,6 +20,7 @@
 #include <linux/usb/ehci_def.h>
 #include <linux/delay.h>
 #include <linux/serial_core.h>
+#include <linux/kconfig.h>
 #include <linux/kgdb.h>
 #include <linux/kthread.h>
 #include <asm/io.h>
@@ -614,12 +615,6 @@ err:
         return -ENODEV;
 }
 
-int dbgp_external_startup(struct usb_hcd *hcd)
-{
-        return xen_dbgp_external_startup(hcd) ?: _dbgp_external_startup();
-}
-EXPORT_SYMBOL_GPL(dbgp_external_startup);
-
 static int ehci_reset_port(int port)
 {
         u32 portsc;
@@ -979,6 +974,7 @@ struct console early_dbgp_console = {
         .index =        -1,
 };
 
+#if IS_ENABLED(CONFIG_USB_EHCI_HCD)
 int dbgp_reset_prep(struct usb_hcd *hcd)
 {
         int ret = xen_dbgp_reset_prep(hcd);
@@ -1007,6 +1003,13 @@ int dbgp_reset_prep(struct usb_hcd *hcd)
 }
 EXPORT_SYMBOL_GPL(dbgp_reset_prep);
 
+int dbgp_external_startup(struct usb_hcd *hcd)
+{
+        return xen_dbgp_external_startup(hcd) ?: _dbgp_external_startup();
+}
+EXPORT_SYMBOL_GPL(dbgp_external_startup);
+#endif /* USB_EHCI_HCD */
+
 #ifdef CONFIG_KGDB
 
 static char kgdbdbgp_buf[DBGP_MAX_PACKET];
diff --git a/drivers/usb/host/ehci-ls1x.c b/drivers/usb/host/ehci-ls1x.c
index ca759652626b..aa0f328922df 100644
--- a/drivers/usb/host/ehci-ls1x.c
+++ b/drivers/usb/host/ehci-ls1x.c
@@ -113,7 +113,7 @@ static int ehci_hcd_ls1x_probe(struct platform_device *pdev)
                 goto err_put_hcd;
         }
 
-        ret = usb_add_hcd(hcd, irq, IRQF_SHARED);
+        ret = usb_add_hcd(hcd, irq, IRQF_DISABLED | IRQF_SHARED);
         if (ret)
                 goto err_put_hcd;
 
diff --git a/drivers/usb/host/ohci-xls.c b/drivers/usb/host/ohci-xls.c
index 84201cd1a472..41e378f17c66 100644
--- a/drivers/usb/host/ohci-xls.c
+++ b/drivers/usb/host/ohci-xls.c
@@ -56,7 +56,7 @@ static int ohci_xls_probe_internal(const struct hc_driver *driver,
                 goto err3;
         }
 
-        retval = usb_add_hcd(hcd, irq, IRQF_SHARED);
+        retval = usb_add_hcd(hcd, irq, IRQF_DISABLED | IRQF_SHARED);
         if (retval != 0)
                 goto err4;
         return retval;
diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c
index d0b87e7b4abf..b6b84dacc791 100644
--- a/drivers/usb/musb/musb_gadget.c
+++ b/drivers/usb/musb/musb_gadget.c
@@ -707,11 +707,12 @@ static void rxstate(struct musb *musb, struct musb_request *req)
                 fifo_count = musb_readw(epio, MUSB_RXCOUNT);
 
                 /*
-                 *  use mode 1 only if we expect data of at least ep packet_sz
-                 *  and have not yet received a short packet
+                 * Enable Mode 1 on RX transfers only when short_not_ok flag
+                 * is set. Currently short_not_ok flag is set only from
+                 * file_storage and f_mass_storage drivers
                  */
-                if ((request->length - request->actual >= musb_ep->packet_sz) &&
-                        (fifo_count >= musb_ep->packet_sz))
+
+                if (request->short_not_ok && fifo_count == musb_ep->packet_sz)
                         use_mode_1 = 1;
                 else
                         use_mode_1 = 0;
@@ -727,6 +728,27 @@ static void rxstate(struct musb *musb, struct musb_request *req)
                                 c = musb->dma_controller;
                                 channel = musb_ep->dma;
 
+        /* We use DMA Req mode 0 in rx_csr, and DMA controller operates in
+         * mode 0 only. So we do not get endpoint interrupts due to DMA
+         * completion. We only get interrupts from DMA controller.
+         *
+         * We could operate in DMA mode 1 if we knew the size of the tranfer
+         * in advance. For mass storage class, request->length = what the host
+         * sends, so that'd work.  But for pretty much everything else,
+         * request->length is routinely more than what the host sends. For
+         * most these gadgets, end of is signified either by a short packet,
+         * or filling the last byte of the buffer.  (Sending extra data in
+         * that last pckate should trigger an overflow fault.)  But in mode 1,
+         * we don't get DMA completion interrupt for short packets.
+         *
+         * Theoretically, we could enable DMAReq irq (MUSB_RXCSR_DMAMODE = 1),
+         * to get endpoint interrupt on every DMA req, but that didn't seem
+         * to work reliably.
+         *
+         * REVISIT an updated g_file_storage can set req->short_not_ok, which
+         * then becomes usable as a runtime "use mode 1" hint...
+         */
+
                                 /* Experimental: Mode1 works with mass storage use cases */
                                 if (use_mode_1) {
                                         csr |= MUSB_RXCSR_AUTOCLEAR;
diff --git a/drivers/usb/musb/ux500.c b/drivers/usb/musb/ux500.c
index d62a91fedc22..0e62f504410e 100644
--- a/drivers/usb/musb/ux500.c
+++ b/drivers/usb/musb/ux500.c
@@ -65,7 +65,7 @@ static int __devinit ux500_probe(struct platform_device *pdev)
         struct platform_device          *musb;
         struct ux500_glue               *glue;
         struct clk                      *clk;
-
+        int                             musbid;
         int                             ret = -ENOMEM;
 
         glue = kzalloc(sizeof(*glue), GFP_KERNEL);
diff --git a/drivers/usb/otg/Kconfig b/drivers/usb/otg/Kconfig
index d8c8a42bff3e..6223062d5d1b 100644
--- a/drivers/usb/otg/Kconfig
+++ b/drivers/usb/otg/Kconfig
@@ -58,7 +58,7 @@ config USB_ULPI_VIEWPORT
 
 config TWL4030_USB
         tristate "TWL4030 USB Transceiver Driver"
-        depends on TWL4030_CORE && REGULATOR_TWL4030
+        depends on TWL4030_CORE && REGULATOR_TWL4030 && USB_MUSB_OMAP2PLUS
         select USB_OTG_UTILS
         help
           Enable this to support the USB OTG transceiver on TWL4030
@@ -68,7 +68,7 @@ config TWL4030_USB
 
 config TWL6030_USB
         tristate "TWL6030 USB Transceiver Driver"
-        depends on TWL4030_CORE && OMAP_USB2
+        depends on TWL4030_CORE && OMAP_USB2 && USB_MUSB_OMAP2PLUS
         select USB_OTG_UTILS
         help
           Enable this to support the USB OTG transceiver on TWL6030
diff --git a/drivers/usb/serial/keyspan.c b/drivers/usb/serial/keyspan.c
index 7179b0c5f814..cff8dd5b462d 100644
--- a/drivers/usb/serial/keyspan.c
+++ b/drivers/usb/serial/keyspan.c
@@ -2430,7 +2430,7 @@ static void keyspan_release(struct usb_serial *serial)
 static int keyspan_port_probe(struct usb_serial_port *port)
 {
         struct usb_serial *serial = port->serial;
-        struct keyspan_port_private *s_priv;
+        struct keyspan_serial_private *s_priv;
         struct keyspan_port_private *p_priv;
         const struct keyspan_device_details *d_details;
         struct callbacks *cback;
@@ -2445,7 +2445,6 @@ static int keyspan_port_probe(struct usb_serial_port *port)
         if (!p_priv)
                 return -ENOMEM;
 
-        s_priv = usb_get_serial_data(port->serial);
         p_priv->device_details = d_details;
 
         /* Setup values for the various callback routines */
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index 5dee7d61241e..edc64bb6f457 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -158,6 +158,7 @@ static void option_instat_callback(struct urb *urb);
 #define NOVATELWIRELESS_PRODUCT_EVDO_EMBEDDED_HIGHSPEED 0x8001
 #define NOVATELWIRELESS_PRODUCT_HSPA_EMBEDDED_FULLSPEED 0x9000
 #define NOVATELWIRELESS_PRODUCT_HSPA_EMBEDDED_HIGHSPEED 0x9001
+#define NOVATELWIRELESS_PRODUCT_E362            0x9010
 #define NOVATELWIRELESS_PRODUCT_G1              0xA001
 #define NOVATELWIRELESS_PRODUCT_G1_M            0xA002
 #define NOVATELWIRELESS_PRODUCT_G2              0xA010
@@ -193,6 +194,9 @@ static void option_instat_callback(struct urb *urb);
 #define DELL_PRODUCT_5730_MINICARD_TELUS        0x8181
 #define DELL_PRODUCT_5730_MINICARD_VZW          0x8182
 
+#define DELL_PRODUCT_5800_MINICARD_VZW          0x8195  /* Novatel E362 */
+#define DELL_PRODUCT_5800_V2_MINICARD_VZW       0x8196  /* Novatel E362 */
+
 #define KYOCERA_VENDOR_ID                       0x0c88
 #define KYOCERA_PRODUCT_KPC650                  0x17da
 #define KYOCERA_PRODUCT_KPC680                  0x180a
@@ -283,6 +287,7 @@ static void option_instat_callback(struct urb *urb);
 /* ALCATEL PRODUCTS */
 #define ALCATEL_VENDOR_ID                       0x1bbb
 #define ALCATEL_PRODUCT_X060S_X200              0x0000
+#define ALCATEL_PRODUCT_X220_X500D              0x0017
 
 #define PIRELLI_VENDOR_ID                       0x1266
 #define PIRELLI_PRODUCT_C100_1                  0x1002
@@ -706,6 +711,7 @@ static const struct usb_device_id option_ids[] = {
         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_G2) },
         /* Novatel Ovation MC551 a.k.a. Verizon USB551L */
         { USB_DEVICE_AND_INTERFACE_INFO(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_MC551, 0xff, 0xff, 0xff) },
+        { USB_DEVICE_AND_INTERFACE_INFO(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_E362, 0xff, 0xff, 0xff) },
 
         { USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_H01) },
         { USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_H01A) },
@@ -728,6 +734,8 @@ static const struct usb_device_id option_ids[] = {
         { USB_DEVICE(DELL_VENDOR_ID, DELL_PRODUCT_5730_MINICARD_SPRINT) },      /* Dell Wireless 5730 Mobile Broadband EVDO/HSPA Mini-Card */
         { USB_DEVICE(DELL_VENDOR_ID, DELL_PRODUCT_5730_MINICARD_TELUS) },       /* Dell Wireless 5730 Mobile Broadband EVDO/HSPA Mini-Card */
         { USB_DEVICE(DELL_VENDOR_ID, DELL_PRODUCT_5730_MINICARD_VZW) },         /* Dell Wireless 5730 Mobile Broadband EVDO/HSPA Mini-Card */
+        { USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, DELL_PRODUCT_5800_MINICARD_VZW, 0xff, 0xff, 0xff) },
+        { USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, DELL_PRODUCT_5800_V2_MINICARD_VZW, 0xff, 0xff, 0xff) },
         { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_E100A) },   /* ADU-E100, ADU-310 */
         { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_500A) },
         { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_620UW) },
@@ -1157,6 +1165,7 @@ static const struct usb_device_id option_ids[] = {
         { USB_DEVICE(ALCATEL_VENDOR_ID, ALCATEL_PRODUCT_X060S_X200),
           .driver_info = (kernel_ulong_t)&alcatel_x200_blacklist
         },
+        { USB_DEVICE(ALCATEL_VENDOR_ID, ALCATEL_PRODUCT_X220_X500D) },
         { USB_DEVICE(AIRPLUS_VENDOR_ID, AIRPLUS_PRODUCT_MCD650) },
         { USB_DEVICE(TLAYTECH_VENDOR_ID, TLAYTECH_PRODUCT_TEU800) },
         { USB_DEVICE(LONGCHEER_VENDOR_ID, FOUR_G_SYSTEMS_PRODUCT_W14),
diff --git a/drivers/usb/serial/usb_wwan.c b/drivers/usb/serial/usb_wwan.c
index 61a73ad1a187..a3e9c095f0d8 100644
--- a/drivers/usb/serial/usb_wwan.c
+++ b/drivers/usb/serial/usb_wwan.c
@@ -455,9 +455,6 @@ static struct urb *usb_wwan_setup_urb(struct usb_serial_port *port,
         struct usb_serial *serial = port->serial;
         struct urb *urb;
 
-        if (endpoint == -1)
-                return NULL;    /* endpoint not needed */
-
         urb = usb_alloc_urb(0, GFP_KERNEL);     /* No ISO */
         if (urb == NULL) {
                 dev_dbg(&serial->interface->dev,
@@ -489,6 +486,9 @@ int usb_wwan_port_probe(struct usb_serial_port *port)
         init_usb_anchor(&portdata->delayed);
 
         for (i = 0; i < N_IN_URB; i++) {
+                if (!port->bulk_in_size)
+                        break;
+
                 buffer = (u8 *)__get_free_page(GFP_KERNEL);
                 if (!buffer)
                         goto bail_out_error;
@@ -502,8 +502,8 @@ int usb_wwan_port_probe(struct usb_serial_port *port)
         }
 
         for (i = 0; i < N_OUT_URB; i++) {
-                if (port->bulk_out_endpointAddress == -1)
-                        continue;
+                if (!port->bulk_out_size)
+                        break;
 
                 buffer = kmalloc(OUT_BUFLEN, GFP_KERNEL);
                 if (!buffer)
diff --git a/drivers/virtio/virtio.c b/drivers/virtio/virtio.c
index 1e8659ca27ef..809b0de59c09 100644
--- a/drivers/virtio/virtio.c
+++ b/drivers/virtio/virtio.c
@@ -225,8 +225,10 @@ EXPORT_SYMBOL_GPL(register_virtio_device);
 
 void unregister_virtio_device(struct virtio_device *dev)
 {
+        int index = dev->index; /* save for after device release */
+
         device_unregister(&dev->dev);
-        ida_simple_remove(&virtio_index_ida, dev->index);
+        ida_simple_remove(&virtio_index_ida, index);
 }
 EXPORT_SYMBOL_GPL(unregister_virtio_device);
 
diff --git a/drivers/xen/Makefile b/drivers/xen/Makefile
index 0e8637035457..74354708c6c4 100644
--- a/drivers/xen/Makefile
+++ b/drivers/xen/Makefile
@@ -2,6 +2,7 @@ ifneq ($(CONFIG_ARM),y)
 obj-y   += manage.o balloon.o
 obj-$(CONFIG_HOTPLUG_CPU)               += cpu_hotplug.o
 endif
+obj-$(CONFIG_X86)                       += fallback.o
 obj-y   += grant-table.o features.o events.o
 obj-y   += xenbus/
 
diff --git a/drivers/xen/events.c b/drivers/xen/events.c
index 912ac81b6dbf..0be4df39e953 100644
--- a/drivers/xen/events.c
+++ b/drivers/xen/events.c
@@ -1395,10 +1395,10 @@ void xen_evtchn_do_upcall(struct pt_regs *regs)
 {
         struct pt_regs *old_regs = set_irq_regs(regs);
 
+        irq_enter();
 #ifdef CONFIG_X86
         exit_idle();
 #endif
-        irq_enter();
 
         __xen_evtchn_do_upcall();
 
diff --git a/drivers/xen/fallback.c b/drivers/xen/fallback.c
new file mode 100644
index 000000000000..0ef7c4d40f86
--- /dev/null
+++ b/drivers/xen/fallback.c
@@ -0,0 +1,80 @@
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/bug.h>
+#include <linux/export.h>
+#include <asm/hypervisor.h>
+#include <asm/xen/hypercall.h>
+
+int xen_event_channel_op_compat(int cmd, void *arg)
+{
+        struct evtchn_op op;
+        int rc;
+
+        op.cmd = cmd;
+        memcpy(&op.u, arg, sizeof(op.u));
+        rc = _hypercall1(int, event_channel_op_compat, &op);
+
+        switch (cmd) {
+        case EVTCHNOP_close:
+        case EVTCHNOP_send:
+        case EVTCHNOP_bind_vcpu:
+        case EVTCHNOP_unmask:
+                /* no output */
+                break;
+
+#define COPY_BACK(eop) \
+        case EVTCHNOP_##eop: \
+                memcpy(arg, &op.u.eop, sizeof(op.u.eop)); \
+                break
+
+        COPY_BACK(bind_interdomain);
+        COPY_BACK(bind_virq);
+        COPY_BACK(bind_pirq);
+        COPY_BACK(status);
+        COPY_BACK(alloc_unbound);
+        COPY_BACK(bind_ipi);
+#undef COPY_BACK
+
+        default:
+                WARN_ON(rc != -ENOSYS);
+                break;
+        }
+
+        return rc;
+}
+EXPORT_SYMBOL_GPL(xen_event_channel_op_compat);
+
+int HYPERVISOR_physdev_op_compat(int cmd, void *arg)
+{
+        struct physdev_op op;
+        int rc;
+
+        op.cmd = cmd;
+        memcpy(&op.u, arg, sizeof(op.u));
+        rc = _hypercall1(int, physdev_op_compat, &op);
+
+        switch (cmd) {
+        case PHYSDEVOP_IRQ_UNMASK_NOTIFY:
+        case PHYSDEVOP_set_iopl:
+        case PHYSDEVOP_set_iobitmap:
+        case PHYSDEVOP_apic_write:
+                /* no output */
+                break;
+
+#define COPY_BACK(pop, fld) \
+        case PHYSDEVOP_##pop: \
+                memcpy(arg, &op.u.fld, sizeof(op.u.fld)); \
+                break
+
+        COPY_BACK(irq_status_query, irq_status_query);
+        COPY_BACK(apic_read, apic_op);
+        COPY_BACK(ASSIGN_VECTOR, irq_op);
+#undef COPY_BACK
+
+        default:
+                WARN_ON(rc != -ENOSYS);
+                break;
+        }
+
+        return rc;
+}
diff --git a/fs/cifs/cifsacl.c b/fs/cifs/cifsacl.c
index fc783e264420..0fb15bbbe43c 100644
--- a/fs/cifs/cifsacl.c
+++ b/fs/cifs/cifsacl.c
@@ -225,6 +225,13 @@ sid_to_str(struct cifs_sid *sidptr, char *sidstr)
 }
 
 static void
+cifs_copy_sid(struct cifs_sid *dst, const struct cifs_sid *src)
+{
+        memcpy(dst, src, sizeof(*dst));
+        dst->num_subauth = min_t(u8, src->num_subauth, NUM_SUBAUTHS);
+}
+
+static void
 id_rb_insert(struct rb_root *root, struct cifs_sid *sidptr,
                 struct cifs_sid_id **psidid, char *typestr)
 {
@@ -248,7 +255,7 @@ id_rb_insert(struct rb_root *root, struct cifs_sid *sidptr,
                 }
         }
 
-        memcpy(&(*psidid)->sid, sidptr, sizeof(struct cifs_sid));
+        cifs_copy_sid(&(*psidid)->sid, sidptr);
         (*psidid)->time = jiffies - (SID_MAP_RETRY + 1);
         (*psidid)->refcount = 0;
 
@@ -354,7 +361,7 @@ id_to_sid(unsigned long cid, uint sidtype, struct cifs_sid *ssid)
          * any fields of the node after a reference is put .
          */
         if (test_bit(SID_ID_MAPPED, &psidid->state)) {
-                memcpy(ssid, &psidid->sid, sizeof(struct cifs_sid));
+                cifs_copy_sid(ssid, &psidid->sid);
                 psidid->time = jiffies; /* update ts for accessing */
                 goto id_sid_out;
         }
@@ -370,14 +377,14 @@ id_to_sid(unsigned long cid, uint sidtype, struct cifs_sid *ssid)
                 if (IS_ERR(sidkey)) {
                         rc = -EINVAL;
                         cFYI(1, "%s: Can't map and id to a SID", __func__);
+                } else if (sidkey->datalen < sizeof(struct cifs_sid)) {
+                        rc = -EIO;
+                        cFYI(1, "%s: Downcall contained malformed key "
+                                "(datalen=%hu)", __func__, sidkey->datalen);
                 } else {
                         lsid = (struct cifs_sid *)sidkey->payload.data;
-                        memcpy(&psidid->sid, lsid,
-                                sidkey->datalen < sizeof(struct cifs_sid) ?
-                                sidkey->datalen : sizeof(struct cifs_sid));
-                        memcpy(ssid, &psidid->sid,
-                                sidkey->datalen < sizeof(struct cifs_sid) ?
-                                sidkey->datalen : sizeof(struct cifs_sid));
+                        cifs_copy_sid(&psidid->sid, lsid);
+                        cifs_copy_sid(ssid, &psidid->sid);
                         set_bit(SID_ID_MAPPED, &psidid->state);
                         key_put(sidkey);
                         kfree(psidid->sidstr);
@@ -396,7 +403,7 @@ id_to_sid(unsigned long cid, uint sidtype, struct cifs_sid *ssid)
                         return rc;
                 }
                 if (test_bit(SID_ID_MAPPED, &psidid->state))
-                        memcpy(ssid, &psidid->sid, sizeof(struct cifs_sid));
+                        cifs_copy_sid(ssid, &psidid->sid);
                 else
                         rc = -EINVAL;
         }
@@ -675,8 +682,6 @@ int compare_sids(const struct cifs_sid *ctsid, const struct cifs_sid *cwsid)
 static void copy_sec_desc(const struct cifs_ntsd *pntsd,
                                 struct cifs_ntsd *pnntsd, __u32 sidsoffset)
 {
-        int i;
-
         struct cifs_sid *owner_sid_ptr, *group_sid_ptr;
         struct cifs_sid *nowner_sid_ptr, *ngroup_sid_ptr;
 
@@ -692,26 +697,14 @@ static void copy_sec_desc(const struct cifs_ntsd *pntsd,
         owner_sid_ptr = (struct cifs_sid *)((char *)pntsd +
                                 le32_to_cpu(pntsd->osidoffset));
         nowner_sid_ptr = (struct cifs_sid *)((char *)pnntsd + sidsoffset);
-
-        nowner_sid_ptr->revision = owner_sid_ptr->revision;
-        nowner_sid_ptr->num_subauth = owner_sid_ptr->num_subauth;
-        for (i = 0; i < 6; i++)
-                nowner_sid_ptr->authority[i] = owner_sid_ptr->authority[i];
-        for (i = 0; i < 5; i++)
-                nowner_sid_ptr->sub_auth[i] = owner_sid_ptr->sub_auth[i];
+        cifs_copy_sid(nowner_sid_ptr, owner_sid_ptr);
 
         /* copy group sid */
         group_sid_ptr = (struct cifs_sid *)((char *)pntsd +
                                 le32_to_cpu(pntsd->gsidoffset));
         ngroup_sid_ptr = (struct cifs_sid *)((char *)pnntsd + sidsoffset +
                                         sizeof(struct cifs_sid));
-
-        ngroup_sid_ptr->revision = group_sid_ptr->revision;
-        ngroup_sid_ptr->num_subauth = group_sid_ptr->num_subauth;
-        for (i = 0; i < 6; i++)
-                ngroup_sid_ptr->authority[i] = group_sid_ptr->authority[i];
-        for (i = 0; i < 5; i++)
-                ngroup_sid_ptr->sub_auth[i] = group_sid_ptr->sub_auth[i];
+        cifs_copy_sid(ngroup_sid_ptr, group_sid_ptr);
 
         return;
 }
@@ -1120,8 +1113,7 @@ static int build_sec_desc(struct cifs_ntsd *pntsd, struct cifs_ntsd *pnntsd,
                                 kfree(nowner_sid_ptr);
                                 return rc;
                         }
-                        memcpy(owner_sid_ptr, nowner_sid_ptr,
-                                        sizeof(struct cifs_sid));
+                        cifs_copy_sid(owner_sid_ptr, nowner_sid_ptr);
                         kfree(nowner_sid_ptr);
                         *aclflag = CIFS_ACL_OWNER;
                 }
@@ -1139,8 +1131,7 @@ static int build_sec_desc(struct cifs_ntsd *pntsd, struct cifs_ntsd *pnntsd,
                                 kfree(ngroup_sid_ptr);
                                 return rc;
                         }
-                        memcpy(group_sid_ptr, ngroup_sid_ptr,
-                                        sizeof(struct cifs_sid));
+                        cifs_copy_sid(group_sid_ptr, ngroup_sid_ptr);
                         kfree(ngroup_sid_ptr);
                         *aclflag = CIFS_ACL_GROUP;
                 }
diff --git a/fs/cifs/dir.c b/fs/cifs/dir.c
index 7c0a81283645..d3671f2acb29 100644
--- a/fs/cifs/dir.c
+++ b/fs/cifs/dir.c
@@ -398,7 +398,16 @@ cifs_atomic_open(struct inode *inode, struct dentry *direntry,
          * in network traffic in the other paths.
          */
         if (!(oflags & O_CREAT)) {
-                struct dentry *res = cifs_lookup(inode, direntry, 0);
+                struct dentry *res;
+
+                /*
+                 * Check for hashed negative dentry. We have already revalidated
+                 * the dentry and it is fine. No need to perform another lookup.
+                 */
+                if (!d_unhashed(direntry))
+                        return -ENOENT;
+
+                res = cifs_lookup(inode, direntry, 0);
                 if (IS_ERR(res))
                         return PTR_ERR(res);
 
diff --git a/fs/eventpoll.c b/fs/eventpoll.c
index da72250ddc1c..cd96649bfe62 100644
--- a/fs/eventpoll.c
+++ b/fs/eventpoll.c
@@ -346,7 +346,7 @@ static inline struct epitem *ep_item_from_epqueue(poll_table *p)
 /* Tells if the epoll_ctl(2) operation needs an event copy from userspace */
 static inline int ep_op_has_event(int op)
 {
-        return op == EPOLL_CTL_ADD || op == EPOLL_CTL_MOD;
+        return op != EPOLL_CTL_DEL;
 }
 
 /* Initialize the poll safe wake up structure */
@@ -676,34 +676,6 @@ static int ep_remove(struct eventpoll *ep, struct epitem *epi)
         return 0;
 }
 
-/*
- * Disables a "struct epitem" in the eventpoll set. Returns -EBUSY if the item
- * had no event flags set, indicating that another thread may be currently
- * handling that item's events (in the case that EPOLLONESHOT was being
- * used). Otherwise a zero result indicates that the item has been disabled
- * from receiving events. A disabled item may be re-enabled via
- * EPOLL_CTL_MOD. Must be called with "mtx" held.
- */
-static int ep_disable(struct eventpoll *ep, struct epitem *epi)
-{
-        int result = 0;
-        unsigned long flags;
-
-        spin_lock_irqsave(&ep->lock, flags);
-        if (epi->event.events & ~EP_PRIVATE_BITS) {
-                if (ep_is_linked(&epi->rdllink))
-                        list_del_init(&epi->rdllink);
-                /* Ensure ep_poll_callback will not add epi back onto ready
-                   list: */
-                epi->event.events &= EP_PRIVATE_BITS;
-                }
-        else
-                result = -EBUSY;
-        spin_unlock_irqrestore(&ep->lock, flags);
-
-        return result;
-}
-
 static void ep_free(struct eventpoll *ep)
 {
         struct rb_node *rbp;
@@ -1048,6 +1020,8 @@ static void ep_rbtree_insert(struct eventpoll *ep, struct epitem *epi)
         rb_insert_color(&epi->rbn, &ep->rbr);
 }
 
+
+
 #define PATH_ARR_SIZE 5
 /*
  * These are the number paths of length 1 to 5, that we are allowing to emanate
@@ -1813,12 +1787,6 @@ SYSCALL_DEFINE4(epoll_ctl, int, epfd, int, op, int, fd,
                 } else
                         error = -ENOENT;
                 break;
-        case EPOLL_CTL_DISABLE:
-                if (epi)
-                        error = ep_disable(ep, epi);
-                else
-                        error = -ENOENT;
-                break;
         }
         mutex_unlock(&ep->mtx);
 
diff --git a/fs/gfs2/file.c b/fs/gfs2/file.c
index 0def0504afc1..e056b4ce4877 100644
--- a/fs/gfs2/file.c
+++ b/fs/gfs2/file.c
@@ -516,15 +516,13 @@ static int gfs2_mmap(struct file *file, struct vm_area_struct *vma)
                 struct gfs2_holder i_gh;
                 int error;
 
-                gfs2_holder_init(ip->i_gl, LM_ST_SHARED, LM_FLAG_ANY, &i_gh);
-                error = gfs2_glock_nq(&i_gh);
-                if (error == 0) {
-                        file_accessed(file);
-                        gfs2_glock_dq(&i_gh);
-                }
-                gfs2_holder_uninit(&i_gh);
+                error = gfs2_glock_nq_init(ip->i_gl, LM_ST_SHARED, LM_FLAG_ANY,
+                                           &i_gh);
                 if (error)
                         return error;
+                /* grab lock to update inode */
+                gfs2_glock_dq_uninit(&i_gh);
+                file_accessed(file);
         }
         vma->vm_ops = &gfs2_vm_ops;
 
@@ -677,10 +675,8 @@ static ssize_t gfs2_file_aio_write(struct kiocb *iocb, const struct iovec *iov,
         size_t writesize = iov_length(iov, nr_segs);
         struct dentry *dentry = file->f_dentry;
         struct gfs2_inode *ip = GFS2_I(dentry->d_inode);
-        struct gfs2_sbd *sdp;
         int ret;
 
-        sdp = GFS2_SB(file->f_mapping->host);
         ret = gfs2_rs_alloc(ip);
         if (ret)
                 return ret;
diff --git a/fs/gfs2/lops.c b/fs/gfs2/lops.c
index 8ff95a2d54ee..9ceccb1595a3 100644
--- a/fs/gfs2/lops.c
+++ b/fs/gfs2/lops.c
@@ -393,12 +393,10 @@ static void buf_lo_add(struct gfs2_sbd *sdp, struct gfs2_bufdata *bd)
         struct gfs2_meta_header *mh;
         struct gfs2_trans *tr;
 
-        lock_buffer(bd->bd_bh);
-        gfs2_log_lock(sdp);
         tr = current->journal_info;
         tr->tr_touched = 1;
         if (!list_empty(&bd->bd_list))
-                goto out;
+                return;
         set_bit(GLF_LFLUSH, &bd->bd_gl->gl_flags);
         set_bit(GLF_DIRTY, &bd->bd_gl->gl_flags);
         mh = (struct gfs2_meta_header *)bd->bd_bh->b_data;
@@ -414,9 +412,6 @@ static void buf_lo_add(struct gfs2_sbd *sdp, struct gfs2_bufdata *bd)
         sdp->sd_log_num_buf++;
         list_add(&bd->bd_list, &sdp->sd_log_le_buf);
         tr->tr_num_buf_new++;
-out:
-        gfs2_log_unlock(sdp);
-        unlock_buffer(bd->bd_bh);
 }
 
 static void gfs2_check_magic(struct buffer_head *bh)
@@ -621,7 +616,6 @@ static void revoke_lo_add(struct gfs2_sbd *sdp, struct gfs2_bufdata *bd)
 
 static void revoke_lo_before_commit(struct gfs2_sbd *sdp)
 {
-        struct gfs2_log_descriptor *ld;
         struct gfs2_meta_header *mh;
         unsigned int offset;
         struct list_head *head = &sdp->sd_log_le_revoke;
@@ -634,7 +628,6 @@ static void revoke_lo_before_commit(struct gfs2_sbd *sdp)
 
         length = gfs2_struct2blk(sdp, sdp->sd_log_num_revoke, sizeof(u64));
         page = gfs2_get_log_desc(sdp, GFS2_LOG_DESC_REVOKE, length, sdp->sd_log_num_revoke);
-        ld = page_address(page);
         offset = sizeof(struct gfs2_log_descriptor);
 
         list_for_each_entry(bd, head, bd_list) {
@@ -777,12 +770,10 @@ static void databuf_lo_add(struct gfs2_sbd *sdp, struct gfs2_bufdata *bd)
         struct address_space *mapping = bd->bd_bh->b_page->mapping;
         struct gfs2_inode *ip = GFS2_I(mapping->host);
 
-        lock_buffer(bd->bd_bh);
-        gfs2_log_lock(sdp);
         if (tr)
                 tr->tr_touched = 1;
         if (!list_empty(&bd->bd_list))
-                goto out;
+                return;
         set_bit(GLF_LFLUSH, &bd->bd_gl->gl_flags);
         set_bit(GLF_DIRTY, &bd->bd_gl->gl_flags);
         if (gfs2_is_jdata(ip)) {
@@ -793,9 +784,6 @@ static void databuf_lo_add(struct gfs2_sbd *sdp, struct gfs2_bufdata *bd)
         } else {
                 list_add_tail(&bd->bd_list, &sdp->sd_log_le_ordered);
         }
-out:
-        gfs2_log_unlock(sdp);
-        unlock_buffer(bd->bd_bh);
 }
 
 /**
diff --git a/fs/gfs2/quota.c b/fs/gfs2/quota.c
index 40c4b0d42fa8..c5af8e18f27a 100644
--- a/fs/gfs2/quota.c
+++ b/fs/gfs2/quota.c
@@ -497,8 +497,11 @@ int gfs2_quota_hold(struct gfs2_inode *ip, u32 uid, u32 gid)
         struct gfs2_quota_data **qd;
         int error;
 
-        if (ip->i_res == NULL)
-                gfs2_rs_alloc(ip);
+        if (ip->i_res == NULL) {
+                error = gfs2_rs_alloc(ip);
+                if (error)
+                        return error;
+        }
 
         qd = ip->i_res->rs_qa_qd;
 
diff --git a/fs/gfs2/rgrp.c b/fs/gfs2/rgrp.c
index 3cc402ce6fea..38fe18f2f055 100644
--- a/fs/gfs2/rgrp.c
+++ b/fs/gfs2/rgrp.c
@@ -553,7 +553,6 @@ void gfs2_free_clones(struct gfs2_rgrpd *rgd)
  */
 int gfs2_rs_alloc(struct gfs2_inode *ip)
 {
-        int error = 0;
         struct gfs2_blkreserv *res;
 
         if (ip->i_res)
@@ -561,7 +560,7 @@ int gfs2_rs_alloc(struct gfs2_inode *ip)
 
         res = kmem_cache_zalloc(gfs2_rsrv_cachep, GFP_NOFS);
         if (!res)
-                error = -ENOMEM;
+                return -ENOMEM;
 
         RB_CLEAR_NODE(&res->rs_node);
 
@@ -571,7 +570,7 @@ int gfs2_rs_alloc(struct gfs2_inode *ip)
         else
                 ip->i_res = res;
         up_write(&ip->i_rw_mutex);
-        return error;
+        return 0;
 }
 
 static void dump_rs(struct seq_file *seq, const struct gfs2_blkreserv *rs)
@@ -1263,7 +1262,9 @@ int gfs2_fitrim(struct file *filp, void __user *argp)
         int ret = 0;
         u64 amt;
         u64 trimmed = 0;
+        u64 start, end, minlen;
         unsigned int x;
+        unsigned bs_shift = sdp->sd_sb.sb_bsize_shift;
 
         if (!capable(CAP_SYS_ADMIN))
                 return -EPERM;
@@ -1271,19 +1272,25 @@ int gfs2_fitrim(struct file *filp, void __user *argp)
         if (!blk_queue_discard(q))
                 return -EOPNOTSUPP;
 
-        if (argp == NULL) {
-                r.start = 0;
-                r.len = ULLONG_MAX;
-                r.minlen = 0;
-        } else if (copy_from_user(&r, argp, sizeof(r)))
+        if (copy_from_user(&r, argp, sizeof(r)))
                 return -EFAULT;
 
         ret = gfs2_rindex_update(sdp);
         if (ret)
                 return ret;
 
-        rgd = gfs2_blk2rgrpd(sdp, r.start, 0);
-        rgd_end = gfs2_blk2rgrpd(sdp, r.start + r.len, 0);
+        start = r.start >> bs_shift;
+        end = start + (r.len >> bs_shift);
+        minlen = max_t(u64, r.minlen,
+                       q->limits.discard_granularity) >> bs_shift;
+
+        rgd = gfs2_blk2rgrpd(sdp, start, 0);
+        rgd_end = gfs2_blk2rgrpd(sdp, end - 1, 0);
+
+        if (end <= start ||
+            minlen > sdp->sd_max_rg_data ||
+            start > rgd_end->rd_data0 + rgd_end->rd_data)
+                return -EINVAL;
 
         while (1) {
 
@@ -1295,7 +1302,9 @@ int gfs2_fitrim(struct file *filp, void __user *argp)
                         /* Trim each bitmap in the rgrp */
                         for (x = 0; x < rgd->rd_length; x++) {
                                 struct gfs2_bitmap *bi = rgd->rd_bits + x;
-                                ret = gfs2_rgrp_send_discards(sdp, rgd->rd_data0, NULL, bi, r.minlen, &amt);
+                                ret = gfs2_rgrp_send_discards(sdp,
+                                                rgd->rd_data0, NULL, bi, minlen,
+                                                &amt);
                                 if (ret) {
                                         gfs2_glock_dq_uninit(&gh);
                                         goto out;
@@ -1324,7 +1333,7 @@ int gfs2_fitrim(struct file *filp, void __user *argp)
 
 out:
         r.len = trimmed << 9;
-        if (argp && copy_to_user(argp, &r, sizeof(r)))
+        if (copy_to_user(argp, &r, sizeof(r)))
                 return -EFAULT;
 
         return ret;
diff --git a/fs/gfs2/super.c b/fs/gfs2/super.c
index bc737261f234..d6488674d916 100644
--- a/fs/gfs2/super.c
+++ b/fs/gfs2/super.c
@@ -810,7 +810,8 @@ static void gfs2_dirty_inode(struct inode *inode, int flags)
                         return;
                 }
                 need_unlock = 1;
-        }
+        } else if (WARN_ON_ONCE(ip->i_gl->gl_state != LM_ST_EXCLUSIVE))
+                return;
 
         if (current->journal_info == NULL) {
                 ret = gfs2_trans_begin(sdp, RES_DINODE, 0);
diff --git a/fs/gfs2/trans.c b/fs/gfs2/trans.c
index adbd27875ef9..413627072f36 100644
--- a/fs/gfs2/trans.c
+++ b/fs/gfs2/trans.c
@@ -155,14 +155,22 @@ void gfs2_trans_add_bh(struct gfs2_glock *gl, struct buffer_head *bh, int meta)
         struct gfs2_sbd *sdp = gl->gl_sbd;
         struct gfs2_bufdata *bd;
 
+        lock_buffer(bh);
+        gfs2_log_lock(sdp);
         bd = bh->b_private;
         if (bd)
                 gfs2_assert(sdp, bd->bd_gl == gl);
         else {
+                gfs2_log_unlock(sdp);
+                unlock_buffer(bh);
                 gfs2_attach_bufdata(gl, bh, meta);
                 bd = bh->b_private;
+                lock_buffer(bh);
+                gfs2_log_lock(sdp);
         }
         lops_add(sdp, bd);
+        gfs2_log_unlock(sdp);
+        unlock_buffer(bh);
 }
 
 void gfs2_trans_add_revoke(struct gfs2_sbd *sdp, struct gfs2_bufdata *bd)
diff --git a/fs/nfs/dns_resolve.c b/fs/nfs/dns_resolve.c
index 31c26c4dcc23..ca4b11ec87a2 100644
--- a/fs/nfs/dns_resolve.c
+++ b/fs/nfs/dns_resolve.c
@@ -217,7 +217,7 @@ static int nfs_dns_parse(struct cache_detail *cd, char *buf, int buflen)
 {
         char buf1[NFS_DNS_HOSTNAME_MAXLEN+1];
         struct nfs_dns_ent key, *item;
-        unsigned long ttl;
+        unsigned int ttl;
         ssize_t len;
         int ret = -EINVAL;
 
@@ -240,7 +240,8 @@ static int nfs_dns_parse(struct cache_detail *cd, char *buf, int buflen)
         key.namelen = len;
         memset(&key.h, 0, sizeof(key.h));
 
-        ttl = get_expiry(&buf);
+        if (get_uint(&buf, &ttl) < 0)
+                goto out;
         if (ttl == 0)
                 goto out;
         key.h.expiry_time = ttl + seconds_since_boot();
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index 5c7325c5c5e6..6fa01aea2488 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -685,7 +685,10 @@ static void __put_nfs_open_context(struct nfs_open_context *ctx, int is_sync)
         if (ctx->cred != NULL)
                 put_rpccred(ctx->cred);
         dput(ctx->dentry);
-        nfs_sb_deactive(sb);
+        if (is_sync)
+                nfs_sb_deactive(sb);
+        else
+                nfs_sb_deactive_async(sb);
         kfree(ctx->mdsthreshold);
         kfree(ctx);
 }
diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h
index 59b133c5d652..05521cadac2e 100644
--- a/fs/nfs/internal.h
+++ b/fs/nfs/internal.h
@@ -351,10 +351,12 @@ extern int __init register_nfs_fs(void);
 extern void __exit unregister_nfs_fs(void);
 extern void nfs_sb_active(struct super_block *sb);
 extern void nfs_sb_deactive(struct super_block *sb);
+extern void nfs_sb_deactive_async(struct super_block *sb);
 
 /* namespace.c */
+#define NFS_PATH_CANONICAL 1
 extern char *nfs_path(char **p, struct dentry *dentry,
-                      char *buffer, ssize_t buflen);
+                      char *buffer, ssize_t buflen, unsigned flags);
 extern struct vfsmount *nfs_d_automount(struct path *path);
 struct vfsmount *nfs_submount(struct nfs_server *, struct dentry *,
                               struct nfs_fh *, struct nfs_fattr *);
@@ -498,7 +500,7 @@ static inline char *nfs_devname(struct dentry *dentry,
                                 char *buffer, ssize_t buflen)
 {
         char *dummy;
-        return nfs_path(&dummy, dentry, buffer, buflen);
+        return nfs_path(&dummy, dentry, buffer, buflen, NFS_PATH_CANONICAL);
 }
 
 /*
diff --git a/fs/nfs/mount_clnt.c b/fs/nfs/mount_clnt.c
index 8e65c7f1f87c..015f71f8f62c 100644
--- a/fs/nfs/mount_clnt.c
+++ b/fs/nfs/mount_clnt.c
@@ -181,7 +181,7 @@ int nfs_mount(struct nfs_mount_request *info)
         else
                 msg.rpc_proc = &mnt_clnt->cl_procinfo[MOUNTPROC_MNT];
 
-        status = rpc_call_sync(mnt_clnt, &msg, 0);
+        status = rpc_call_sync(mnt_clnt, &msg, RPC_TASK_SOFT|RPC_TASK_TIMEOUT);
         rpc_shutdown_client(mnt_clnt);
 
         if (status < 0)
diff --git a/fs/nfs/namespace.c b/fs/nfs/namespace.c
index 655925373b91..dd057bc6b65b 100644
--- a/fs/nfs/namespace.c
+++ b/fs/nfs/namespace.c
@@ -33,6 +33,7 @@ int nfs_mountpoint_expiry_timeout = 500 * HZ;
  * @dentry - pointer to dentry
  * @buffer - result buffer
  * @buflen - length of buffer
+ * @flags - options (see below)
  *
  * Helper function for constructing the server pathname
  * by arbitrary hashed dentry.
@@ -40,8 +41,14 @@ int nfs_mountpoint_expiry_timeout = 500 * HZ;
  * This is mainly for use in figuring out the path on the
  * server side when automounting on top of an existing partition
  * and in generating /proc/mounts and friends.
+ *
+ * Supported flags:
+ * NFS_PATH_CANONICAL: ensure there is exactly one slash after
+ *                     the original device (export) name
+ *                     (if unset, the original name is returned verbatim)
  */
-char *nfs_path(char **p, struct dentry *dentry, char *buffer, ssize_t buflen)
+char *nfs_path(char **p, struct dentry *dentry, char *buffer, ssize_t buflen,
+               unsigned flags)
 {
         char *end;
         int namelen;
@@ -74,7 +81,7 @@ rename_retry:
                 rcu_read_unlock();
                 goto rename_retry;
         }
-        if (*end != '/') {
+        if ((flags & NFS_PATH_CANONICAL) && *end != '/') {
                 if (--buflen < 0) {
                         spin_unlock(&dentry->d_lock);
                         rcu_read_unlock();
@@ -91,9 +98,11 @@ rename_retry:
                 return end;
         }
         namelen = strlen(base);
-        /* Strip off excess slashes in base string */
-        while (namelen > 0 && base[namelen - 1] == '/')
-                namelen--;
+        if (flags & NFS_PATH_CANONICAL) {
+                /* Strip off excess slashes in base string */
+                while (namelen > 0 && base[namelen - 1] == '/')
+                        namelen--;
+        }
         buflen -= namelen;
         if (buflen < 0) {
                 spin_unlock(&dentry->d_lock);
diff --git a/fs/nfs/nfs4namespace.c b/fs/nfs/nfs4namespace.c
index 79fbb61ce202..1e09eb78543b 100644
--- a/fs/nfs/nfs4namespace.c
+++ b/fs/nfs/nfs4namespace.c
@@ -81,7 +81,8 @@ static char *nfs_path_component(const char *nfspath, const char *end)
 static char *nfs4_path(struct dentry *dentry, char *buffer, ssize_t buflen)
 {
         char *limit;
-        char *path = nfs_path(&limit, dentry, buffer, buflen);
+        char *path = nfs_path(&limit, dentry, buffer, buflen,
+                              NFS_PATH_CANONICAL);
         if (!IS_ERR(path)) {
                 char *path_component = nfs_path_component(path, limit);
                 if (path_component)
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 68b21d81b7ac..5eec4429970c 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -339,8 +339,7 @@ static int nfs4_handle_exception(struct nfs_server *server, int errorcode, struc
                         dprintk("%s ERROR: %d Reset session\n", __func__,
                                 errorcode);
                         nfs4_schedule_session_recovery(clp->cl_session, errorcode);
-                        exception->retry = 1;
-                        break;
+                        goto wait_on_recovery;
 #endif /* defined(CONFIG_NFS_V4_1) */
                 case -NFS4ERR_FILE_OPEN:
                         if (exception->timeout > HZ) {
@@ -1572,9 +1571,11 @@ static void nfs4_open_prepare(struct rpc_task *task, void *calldata)
         data->timestamp = jiffies;
         if (nfs4_setup_sequence(data->o_arg.server,
                                 &data->o_arg.seq_args,
-                                &data->o_res.seq_res, task))
-                return;
-        rpc_call_start(task);
+                                &data->o_res.seq_res,
+                                task) != 0)
+                nfs_release_seqid(data->o_arg.seqid);
+        else
+                rpc_call_start(task);
         return;
 unlock_no_action:
         rcu_read_unlock();
@@ -1748,7 +1749,7 @@ static int nfs4_opendata_access(struct rpc_cred *cred,
 
         /* even though OPEN succeeded, access is denied. Close the file */
         nfs4_close_state(state, fmode);
-        return -NFS4ERR_ACCESS;
+        return -EACCES;
 }
 
 /*
@@ -2196,7 +2197,7 @@ static void nfs4_free_closedata(void *data)
         nfs4_put_open_state(calldata->state);
         nfs_free_seqid(calldata->arg.seqid);
         nfs4_put_state_owner(sp);
-        nfs_sb_deactive(sb);
+        nfs_sb_deactive_async(sb);
         kfree(calldata);
 }
 
@@ -2296,9 +2297,10 @@ static void nfs4_close_prepare(struct rpc_task *task, void *data)
         if (nfs4_setup_sequence(NFS_SERVER(inode),
                                 &calldata->arg.seq_args,
                                 &calldata->res.seq_res,
-                                task))
-                goto out;
-        rpc_call_start(task);
+                                task) != 0)
+                nfs_release_seqid(calldata->arg.seqid);
+        else
+                rpc_call_start(task);
 out:
         dprintk("%s: done!\n", __func__);
 }
@@ -4529,6 +4531,7 @@ static void nfs4_locku_done(struct rpc_task *task, void *data)
                         if (nfs4_async_handle_error(task, calldata->server, NULL) == -EAGAIN)
                                 rpc_restart_call_prepare(task);
         }
+        nfs_release_seqid(calldata->arg.seqid);
 }
 
 static void nfs4_locku_prepare(struct rpc_task *task, void *data)
@@ -4545,9 +4548,11 @@ static void nfs4_locku_prepare(struct rpc_task *task, void *data)
         calldata->timestamp = jiffies;
         if (nfs4_setup_sequence(calldata->server,
                                 &calldata->arg.seq_args,
-                                &calldata->res.seq_res, task))
-                return;
-        rpc_call_start(task);
+                                &calldata->res.seq_res,
+                                task) != 0)
+                nfs_release_seqid(calldata->arg.seqid);
+        else
+                rpc_call_start(task);
 }
 
 static const struct rpc_call_ops nfs4_locku_ops = {
@@ -4692,7 +4697,7 @@ static void nfs4_lock_prepare(struct rpc_task *task, void *calldata)
         /* Do we need to do an open_to_lock_owner? */
         if (!(data->arg.lock_seqid->sequence->flags & NFS_SEQID_CONFIRMED)) {
                 if (nfs_wait_on_sequence(data->arg.open_seqid, task) != 0)
-                        return;
+                        goto out_release_lock_seqid;
                 data->arg.open_stateid = &state->stateid;
                 data->arg.new_lock_owner = 1;
                 data->res.open_seqid = data->arg.open_seqid;
@@ -4701,10 +4706,15 @@ static void nfs4_lock_prepare(struct rpc_task *task, void *calldata)
         data->timestamp = jiffies;
         if (nfs4_setup_sequence(data->server,
                                 &data->arg.seq_args,
-                                &data->res.seq_res, task))
+                                &data->res.seq_res,
+                                task) == 0) {
+                rpc_call_start(task);
                 return;
-        rpc_call_start(task);
-        dprintk("%s: done!, ret = %d\n", __func__, data->rpc_status);
+        }
+        nfs_release_seqid(data->arg.open_seqid);
+out_release_lock_seqid:
+        nfs_release_seqid(data->arg.lock_seqid);
+        dprintk("%s: done!, ret = %d\n", __func__, task->tk_status);
 }
 
 static void nfs4_recover_lock_prepare(struct rpc_task *task, void *calldata)
@@ -5667,7 +5677,7 @@ static void nfs4_add_and_init_slots(struct nfs4_slot_table *tbl,
                 tbl->slots = new;
                 tbl->max_slots = max_slots;
         }
-        tbl->highest_used_slotid = -1;  /* no slot is currently used */
+        tbl->highest_used_slotid = NFS4_NO_SLOT;
         for (i = 0; i < tbl->max_slots; i++)
                 tbl->slots[i].seq_nr = ivalue;
         spin_unlock(&tbl->slot_tbl_lock);
diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c
index fe624c91bd00..2878f97bd78d 100644
--- a/fs/nfs/pnfs.c
+++ b/fs/nfs/pnfs.c
@@ -925,8 +925,8 @@ pnfs_find_alloc_layout(struct inode *ino,
         if (likely(nfsi->layout == NULL)) {     /* Won the race? */
                 nfsi->layout = new;
                 return new;
-        }
-        pnfs_free_layout_hdr(new);
+        } else if (new != NULL)
+                pnfs_free_layout_hdr(new);
 out_existing:
         pnfs_get_layout_hdr(nfsi->layout);
         return nfsi->layout;
diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index e831bce49766..652d3f7176a9 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -54,6 +54,7 @@
 #include <linux/parser.h>
 #include <linux/nsproxy.h>
 #include <linux/rcupdate.h>
+#include <linux/kthread.h>
 
 #include <asm/uaccess.h>
 
@@ -415,6 +416,54 @@ void nfs_sb_deactive(struct super_block *sb)
 }
 EXPORT_SYMBOL_GPL(nfs_sb_deactive);
 
+static int nfs_deactivate_super_async_work(void *ptr)
+{
+        struct super_block *sb = ptr;
+
+        deactivate_super(sb);
+        module_put_and_exit(0);
+        return 0;
+}
+
+/*
+ * same effect as deactivate_super, but will do final unmount in kthread
+ * context
+ */
+static void nfs_deactivate_super_async(struct super_block *sb)
+{
+        struct task_struct *task;
+        char buf[INET6_ADDRSTRLEN + 1];
+        struct nfs_server *server = NFS_SB(sb);
+        struct nfs_client *clp = server->nfs_client;
+
+        if (!atomic_add_unless(&sb->s_active, -1, 1)) {
+                rcu_read_lock();
+                snprintf(buf, sizeof(buf),
+                        rpc_peeraddr2str(clp->cl_rpcclient, RPC_DISPLAY_ADDR));
+                rcu_read_unlock();
+
+                __module_get(THIS_MODULE);
+                task = kthread_run(nfs_deactivate_super_async_work, sb,
+                                "%s-deactivate-super", buf);
+                if (IS_ERR(task)) {
+                        pr_err("%s: kthread_run: %ld\n",
+                                __func__, PTR_ERR(task));
+                        /* make synchronous call and hope for the best */
+                        deactivate_super(sb);
+                        module_put(THIS_MODULE);
+                }
+        }
+}
+
+void nfs_sb_deactive_async(struct super_block *sb)
+{
+        struct nfs_server *server = NFS_SB(sb);
+
+        if (atomic_dec_and_test(&server->active))
+                nfs_deactivate_super_async(sb);
+}
+EXPORT_SYMBOL_GPL(nfs_sb_deactive_async);
+
 /*
  * Deliver file system statistics to userspace
  */
@@ -771,7 +820,7 @@ int nfs_show_devname(struct seq_file *m, struct dentry *root)
         int err = 0;
         if (!page)
                 return -ENOMEM;
-        devname = nfs_path(&dummy, root, page, PAGE_SIZE);
+        devname = nfs_path(&dummy, root, page, PAGE_SIZE, 0);
         if (IS_ERR(devname))
                 err = PTR_ERR(devname);
         else
diff --git a/fs/nfs/unlink.c b/fs/nfs/unlink.c
index 13cea637eff8..3f79c77153b8 100644
--- a/fs/nfs/unlink.c
+++ b/fs/nfs/unlink.c
@@ -95,7 +95,7 @@ static void nfs_async_unlink_release(void *calldata)
 
         nfs_dec_sillycount(data->dir);
         nfs_free_unlinkdata(data);
-        nfs_sb_deactive(sb);
+        nfs_sb_deactive_async(sb);
 }
 
 static void nfs_unlink_prepare(struct rpc_task *task, void *calldata)
diff --git a/fs/notify/fanotify/fanotify.c b/fs/notify/fanotify/fanotify.c
index f35794b97e8e..a50636025364 100644
--- a/fs/notify/fanotify/fanotify.c
+++ b/fs/notify/fanotify/fanotify.c
@@ -21,6 +21,7 @@ static bool should_merge(struct fsnotify_event *old, struct fsnotify_event *new)
                         if ((old->path.mnt == new->path.mnt) &&
                             (old->path.dentry == new->path.dentry))
                                 return true;
+                        break;
                 case (FSNOTIFY_EVENT_NONE):
                         return true;
                 default:
diff --git a/fs/proc/base.c b/fs/proc/base.c
index 144a96732dd7..3c231adf8450 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -873,6 +873,113 @@ static const struct file_operations proc_environ_operations = {
         .release        = mem_release,
 };
 
+static ssize_t oom_adj_read(struct file *file, char __user *buf, size_t count,
+                            loff_t *ppos)
+{
+        struct task_struct *task = get_proc_task(file->f_path.dentry->d_inode);
+        char buffer[PROC_NUMBUF];
+        int oom_adj = OOM_ADJUST_MIN;
+        size_t len;
+        unsigned long flags;
+
+        if (!task)
+                return -ESRCH;
+        if (lock_task_sighand(task, &flags)) {
+                if (task->signal->oom_score_adj == OOM_SCORE_ADJ_MAX)
+                        oom_adj = OOM_ADJUST_MAX;
+                else
+                        oom_adj = (task->signal->oom_score_adj * -OOM_DISABLE) /
+                                  OOM_SCORE_ADJ_MAX;
+                unlock_task_sighand(task, &flags);
+        }
+        put_task_struct(task);
+        len = snprintf(buffer, sizeof(buffer), "%d\n", oom_adj);
+        return simple_read_from_buffer(buf, count, ppos, buffer, len);
+}
+
+static ssize_t oom_adj_write(struct file *file, const char __user *buf,
+                             size_t count, loff_t *ppos)
+{
+        struct task_struct *task;
+        char buffer[PROC_NUMBUF];
+        int oom_adj;
+        unsigned long flags;
+        int err;
+
+        memset(buffer, 0, sizeof(buffer));
+        if (count > sizeof(buffer) - 1)
+                count = sizeof(buffer) - 1;
+        if (copy_from_user(buffer, buf, count)) {
+                err = -EFAULT;
+                goto out;
+        }
+
+        err = kstrtoint(strstrip(buffer), 0, &oom_adj);
+        if (err)
+                goto out;
+        if ((oom_adj < OOM_ADJUST_MIN || oom_adj > OOM_ADJUST_MAX) &&
+             oom_adj != OOM_DISABLE) {
+                err = -EINVAL;
+                goto out;
+        }
+
+        task = get_proc_task(file->f_path.dentry->d_inode);
+        if (!task) {
+                err = -ESRCH;
+                goto out;
+        }
+
+        task_lock(task);
+        if (!task->mm) {
+                err = -EINVAL;
+                goto err_task_lock;
+        }
+
+        if (!lock_task_sighand(task, &flags)) {
+                err = -ESRCH;
+                goto err_task_lock;
+        }
+
+        /*
+         * Scale /proc/pid/oom_score_adj appropriately ensuring that a maximum
+         * value is always attainable.
+         */
+        if (oom_adj == OOM_ADJUST_MAX)
+                oom_adj = OOM_SCORE_ADJ_MAX;
+        else
+                oom_adj = (oom_adj * OOM_SCORE_ADJ_MAX) / -OOM_DISABLE;
+
+        if (oom_adj < task->signal->oom_score_adj &&
+            !capable(CAP_SYS_RESOURCE)) {
+                err = -EACCES;
+                goto err_sighand;
+        }
+
+        /*
+         * /proc/pid/oom_adj is provided for legacy purposes, ask users to use
+         * /proc/pid/oom_score_adj instead.
+         */
+        printk_once(KERN_WARNING "%s (%d): /proc/%d/oom_adj is deprecated, please use /proc/%d/oom_score_adj instead.\n",
+                  current->comm, task_pid_nr(current), task_pid_nr(task),
+                  task_pid_nr(task));
+
+        task->signal->oom_score_adj = oom_adj;
+        trace_oom_score_adj_update(task);
+err_sighand:
+        unlock_task_sighand(task, &flags);
+err_task_lock:
+        task_unlock(task);
+        put_task_struct(task);
+out:
+        return err < 0 ? err : count;
+}
+
+static const struct file_operations proc_oom_adj_operations = {
+        .read           = oom_adj_read,
+        .write          = oom_adj_write,
+        .llseek         = generic_file_llseek,
+};
+
 static ssize_t oom_score_adj_read(struct file *file, char __user *buf,
                                         size_t count, loff_t *ppos)
 {
@@ -2598,6 +2705,7 @@ static const struct pid_entry tgid_base_stuff[] = {
         REG("cgroup",  S_IRUGO, proc_cgroup_operations),
 #endif
         INF("oom_score",  S_IRUGO, proc_oom_score),
+        REG("oom_adj",    S_IRUGO|S_IWUSR, proc_oom_adj_operations),
         REG("oom_score_adj", S_IRUGO|S_IWUSR, proc_oom_score_adj_operations),
 #ifdef CONFIG_AUDITSYSCALL
         REG("loginuid",   S_IWUSR|S_IRUGO, proc_loginuid_operations),
@@ -2964,6 +3072,7 @@ static const struct pid_entry tid_base_stuff[] = {
         REG("cgroup",  S_IRUGO, proc_cgroup_operations),
 #endif
         INF("oom_score", S_IRUGO, proc_oom_score),
+        REG("oom_adj",   S_IRUGO|S_IWUSR, proc_oom_adj_operations),
         REG("oom_score_adj", S_IRUGO|S_IWUSR, proc_oom_score_adj_operations),
 #ifdef CONFIG_AUDITSYSCALL
         REG("loginuid",  S_IWUSR|S_IRUGO, proc_loginuid_operations),
diff --git a/fs/pstore/platform.c b/fs/pstore/platform.c
index a40da07e93d6..947fbe06c3b1 100644
--- a/fs/pstore/platform.c
+++ b/fs/pstore/platform.c
@@ -161,6 +161,7 @@ static void pstore_console_write(struct console *con, const char *s, unsigned c)
 
         while (s < e) {
                 unsigned long flags;
+                u64 id;
 
                 if (c > psinfo->bufsize)
                         c = psinfo->bufsize;
@@ -172,7 +173,7 @@ static void pstore_console_write(struct console *con, const char *s, unsigned c)
                         spin_lock_irqsave(&psinfo->buf_lock, flags);
                 }
                 memcpy(psinfo->buf, s, c);
-                psinfo->write(PSTORE_TYPE_CONSOLE, 0, NULL, 0, c, psinfo);
+                psinfo->write(PSTORE_TYPE_CONSOLE, 0, &id, 0, c, psinfo);
                 spin_unlock_irqrestore(&psinfo->buf_lock, flags);
                 s += c;
                 c = e - s;
diff --git a/fs/ubifs/find.c b/fs/ubifs/find.c
index 28ec13af28d9..2dcf3d473fec 100644
--- a/fs/ubifs/find.c
+++ b/fs/ubifs/find.c
@@ -681,8 +681,16 @@ int ubifs_find_free_leb_for_idx(struct ubifs_info *c)
         if (!lprops) {
                 lprops = ubifs_fast_find_freeable(c);
                 if (!lprops) {
-                        ubifs_assert(c->freeable_cnt == 0);
-                        if (c->lst.empty_lebs - c->lst.taken_empty_lebs > 0) {
+                        /*
+                         * The first condition means the following: go scan the
+                         * LPT if there are uncategorized lprops, which means
+                         * there may be freeable LEBs there (UBIFS does not
+                         * store the information about freeable LEBs in the
+                         * master node).
+                         */
+                        if (c->in_a_category_cnt != c->main_lebs ||
+                            c->lst.empty_lebs - c->lst.taken_empty_lebs > 0) {
+                                ubifs_assert(c->freeable_cnt == 0);
                                 lprops = scan_for_leb_for_idx(c);
                                 if (IS_ERR(lprops)) {
                                         err = PTR_ERR(lprops);
diff --git a/fs/ubifs/lprops.c b/fs/ubifs/lprops.c
index e5a2a35a46dc..46190a7c42a6 100644
--- a/fs/ubifs/lprops.c
+++ b/fs/ubifs/lprops.c
@@ -300,8 +300,11 @@ void ubifs_add_to_cat(struct ubifs_info *c, struct ubifs_lprops *lprops,
         default:
                 ubifs_assert(0);
         }
+
         lprops->flags &= ~LPROPS_CAT_MASK;
         lprops->flags |= cat;
+        c->in_a_category_cnt += 1;
+        ubifs_assert(c->in_a_category_cnt <= c->main_lebs);
 }
 
 /**
@@ -334,6 +337,9 @@ static void ubifs_remove_from_cat(struct ubifs_info *c,
         default:
                 ubifs_assert(0);
         }
+
+        c->in_a_category_cnt -= 1;
+        ubifs_assert(c->in_a_category_cnt >= 0);
 }
 
 /**
diff --git a/fs/ubifs/ubifs.h b/fs/ubifs/ubifs.h
index 5486346d0a3f..d133c276fe05 100644
--- a/fs/ubifs/ubifs.h
+++ b/fs/ubifs/ubifs.h
@@ -1183,6 +1183,8 @@ struct ubifs_debug_info;
  * @freeable_list: list of freeable non-index LEBs (free + dirty == @leb_size)
  * @frdi_idx_list: list of freeable index LEBs (free + dirty == @leb_size)
  * @freeable_cnt: number of freeable LEBs in @freeable_list
+ * @in_a_category_cnt: count of lprops which are in a certain category, which
+ *                     basically meants that they were loaded from the flash
  *
  * @ltab_lnum: LEB number of LPT's own lprops table
  * @ltab_offs: offset of LPT's own lprops table
@@ -1412,6 +1414,7 @@ struct ubifs_info {
         struct list_head freeable_list;
         struct list_head frdi_idx_list;
         int freeable_cnt;
+        int in_a_category_cnt;
 
         int ltab_lnum;
         int ltab_offs;
diff --git a/fs/xfs/xfs_alloc.c b/fs/xfs/xfs_alloc.c
index 4f33c32affe3..335206a9c698 100644
--- a/fs/xfs/xfs_alloc.c
+++ b/fs/xfs/xfs_alloc.c
@@ -1866,6 +1866,7 @@ xfs_alloc_fix_freelist(
         /*
          * Initialize the args structure.
          */
+        memset(&targs, 0, sizeof(targs));
         targs.tp = tp;
         targs.mp = mp;
         targs.agbp = agbp;
@@ -2207,7 +2208,7 @@ xfs_alloc_read_agf(
  * group or loop over the allocation groups to find the result.
  */
 int                             /* error */
-__xfs_alloc_vextent(
+xfs_alloc_vextent(
         xfs_alloc_arg_t *args)  /* allocation argument structure */
 {
         xfs_agblock_t   agsize; /* allocation group size */
@@ -2417,46 +2418,6 @@ error0:
         return error;
 }
 
-static void
-xfs_alloc_vextent_worker(
-        struct work_struct      *work)
-{
-        struct xfs_alloc_arg    *args = container_of(work,
-                                                struct xfs_alloc_arg, work);
-        unsigned long           pflags;
-
-        /* we are in a transaction context here */
-        current_set_flags_nested(&pflags, PF_FSTRANS);
-
-        args->result = __xfs_alloc_vextent(args);
-        complete(args->done);
-
-        current_restore_flags_nested(&pflags, PF_FSTRANS);
-}
-
-/*
- * Data allocation requests often come in with little stack to work on. Push
- * them off to a worker thread so there is lots of stack to use. Metadata
- * requests, OTOH, are generally from low stack usage paths, so avoid the
- * context switch overhead here.
- */
-int
-xfs_alloc_vextent(
-        struct xfs_alloc_arg    *args)
-{
-        DECLARE_COMPLETION_ONSTACK(done);
-
-        if (!args->userdata)
-                return __xfs_alloc_vextent(args);
-
-
-        args->done = &done;
-        INIT_WORK_ONSTACK(&args->work, xfs_alloc_vextent_worker);
-        queue_work(xfs_alloc_wq, &args->work);
-        wait_for_completion(&done);
-        return args->result;
-}
-
 /*
  * Free an extent.
  * Just break up the extent address and hand off to xfs_free_ag_extent
diff --git a/fs/xfs/xfs_alloc.h b/fs/xfs/xfs_alloc.h
index 93be4a667ca1..feacb061bab7 100644
--- a/fs/xfs/xfs_alloc.h
+++ b/fs/xfs/xfs_alloc.h
@@ -120,9 +120,6 @@ typedef struct xfs_alloc_arg {
         char            isfl;           /* set if is freelist blocks - !acctg */
         char            userdata;       /* set if this is user data */
         xfs_fsblock_t   firstblock;     /* io first block allocated */
-        struct completion *done;
-        struct work_struct work;
-        int             result;
 } xfs_alloc_arg_t;
 
 /*
diff --git a/fs/xfs/xfs_alloc_btree.c b/fs/xfs/xfs_alloc_btree.c
index f1647caace8f..f7876c6d6165 100644
--- a/fs/xfs/xfs_alloc_btree.c
+++ b/fs/xfs/xfs_alloc_btree.c
@@ -121,6 +121,8 @@ xfs_allocbt_free_block(
         xfs_extent_busy_insert(cur->bc_tp, be32_to_cpu(agf->agf_seqno), bno, 1,
                               XFS_EXTENT_BUSY_SKIP_DISCARD);
         xfs_trans_agbtree_delta(cur->bc_tp, -1);
+
+        xfs_trans_binval(cur->bc_tp, bp);
         return 0;
 }
 
diff --git a/fs/xfs/xfs_bmap.c b/fs/xfs/xfs_bmap.c
index 848ffa77707b..83d0cf3df930 100644
--- a/fs/xfs/xfs_bmap.c
+++ b/fs/xfs/xfs_bmap.c
@@ -2437,6 +2437,7 @@ xfs_bmap_btalloc(
          * Normal allocation, done through xfs_alloc_vextent.
          */
         tryagain = isaligned = 0;
+        memset(&args, 0, sizeof(args));
         args.tp = ap->tp;
         args.mp = mp;
         args.fsbno = ap->blkno;
@@ -3082,6 +3083,7 @@ xfs_bmap_extents_to_btree(
          * Convert to a btree with two levels, one record in root.
          */
         XFS_IFORK_FMT_SET(ip, whichfork, XFS_DINODE_FMT_BTREE);
+        memset(&args, 0, sizeof(args));
         args.tp = tp;
         args.mp = mp;
         args.firstblock = *firstblock;
@@ -3237,6 +3239,7 @@ xfs_bmap_local_to_extents(
                 xfs_buf_t       *bp;    /* buffer for extent block */
                 xfs_bmbt_rec_host_t *ep;/* extent record pointer */
 
+                memset(&args, 0, sizeof(args));
                 args.tp = tp;
                 args.mp = ip->i_mount;
                 args.firstblock = *firstblock;
@@ -4616,12 +4619,11 @@ xfs_bmapi_delay(
 
 
 STATIC int
-xfs_bmapi_allocate(
-        struct xfs_bmalloca     *bma,
-        int                     flags)
+__xfs_bmapi_allocate(
+        struct xfs_bmalloca     *bma)
 {
         struct xfs_mount        *mp = bma->ip->i_mount;
-        int                     whichfork = (flags & XFS_BMAPI_ATTRFORK) ?
+        int                     whichfork = (bma->flags & XFS_BMAPI_ATTRFORK) ?
                                                 XFS_ATTR_FORK : XFS_DATA_FORK;
         struct xfs_ifork        *ifp = XFS_IFORK_PTR(bma->ip, whichfork);
         int                     tmp_logflags = 0;
@@ -4654,24 +4656,27 @@ xfs_bmapi_allocate(
          * Indicate if this is the first user data in the file, or just any
          * user data.
          */
-        if (!(flags & XFS_BMAPI_METADATA)) {
+        if (!(bma->flags & XFS_BMAPI_METADATA)) {
                 bma->userdata = (bma->offset == 0) ?
                         XFS_ALLOC_INITIAL_USER_DATA : XFS_ALLOC_USERDATA;
         }
 
-        bma->minlen = (flags & XFS_BMAPI_CONTIG) ? bma->length : 1;
+        bma->minlen = (bma->flags & XFS_BMAPI_CONTIG) ? bma->length : 1;
 
         /*
          * Only want to do the alignment at the eof if it is userdata and
          * allocation length is larger than a stripe unit.
          */
         if (mp->m_dalign && bma->length >= mp->m_dalign &&
-            !(flags & XFS_BMAPI_METADATA) && whichfork == XFS_DATA_FORK) {
+            !(bma->flags & XFS_BMAPI_METADATA) && whichfork == XFS_DATA_FORK) {
                 error = xfs_bmap_isaeof(bma, whichfork);
                 if (error)
                         return error;
         }
 
+        if (bma->flags & XFS_BMAPI_STACK_SWITCH)
+                bma->stack_switch = 1;
+
         error = xfs_bmap_alloc(bma);
         if (error)
                 return error;
@@ -4706,7 +4711,7 @@ xfs_bmapi_allocate(
          * A wasdelay extent has been initialized, so shouldn't be flagged
          * as unwritten.
          */
-        if (!bma->wasdel && (flags & XFS_BMAPI_PREALLOC) &&
+        if (!bma->wasdel && (bma->flags & XFS_BMAPI_PREALLOC) &&
             xfs_sb_version_hasextflgbit(&mp->m_sb))
                 bma->got.br_state = XFS_EXT_UNWRITTEN;
 
@@ -4734,6 +4739,45 @@ xfs_bmapi_allocate(
         return 0;
 }
 
+static void
+xfs_bmapi_allocate_worker(
+        struct work_struct      *work)
+{
+        struct xfs_bmalloca     *args = container_of(work,
+                                                struct xfs_bmalloca, work);
+        unsigned long           pflags;
+
+        /* we are in a transaction context here */
+        current_set_flags_nested(&pflags, PF_FSTRANS);
+
+        args->result = __xfs_bmapi_allocate(args);
+        complete(args->done);
+
+        current_restore_flags_nested(&pflags, PF_FSTRANS);
+}
+
+/*
+ * Some allocation requests often come in with little stack to work on. Push
+ * them off to a worker thread so there is lots of stack to use. Otherwise just
+ * call directly to avoid the context switch overhead here.
+ */
+int
+xfs_bmapi_allocate(
+        struct xfs_bmalloca     *args)
+{
+        DECLARE_COMPLETION_ONSTACK(done);
+
+        if (!args->stack_switch)
+                return __xfs_bmapi_allocate(args);
+
+
+        args->done = &done;
+        INIT_WORK_ONSTACK(&args->work, xfs_bmapi_allocate_worker);
+        queue_work(xfs_alloc_wq, &args->work);
+        wait_for_completion(&done);
+        return args->result;
+}
+
 STATIC int
 xfs_bmapi_convert_unwritten(
         struct xfs_bmalloca     *bma,
@@ -4919,6 +4963,7 @@ xfs_bmapi_write(
                         bma.conv = !!(flags & XFS_BMAPI_CONVERT);
                         bma.wasdel = wasdelay;
                         bma.offset = bno;
+                        bma.flags = flags;
 
                         /*
                          * There's a 32/64 bit type mismatch between the
@@ -4934,7 +4979,7 @@ xfs_bmapi_write(
 
                         ASSERT(len > 0);
                         ASSERT(bma.length > 0);
-                        error = xfs_bmapi_allocate(&bma, flags);
+                        error = xfs_bmapi_allocate(&bma);
                         if (error)
                                 goto error0;
                         if (bma.blkno == NULLFSBLOCK)
diff --git a/fs/xfs/xfs_bmap.h b/fs/xfs/xfs_bmap.h
index 803b56d7ce16..5f469c3516eb 100644
--- a/fs/xfs/xfs_bmap.h
+++ b/fs/xfs/xfs_bmap.h
@@ -77,6 +77,7 @@ typedef	struct xfs_bmap_free
  * from written to unwritten, otherwise convert from unwritten to written.
  */
 #define XFS_BMAPI_CONVERT       0x040
+#define XFS_BMAPI_STACK_SWITCH  0x080
 
 #define XFS_BMAPI_FLAGS \
         { XFS_BMAPI_ENTIRE,     "ENTIRE" }, \
@@ -85,7 +86,8 @@ typedef	struct xfs_bmap_free
         { XFS_BMAPI_PREALLOC,   "PREALLOC" }, \
         { XFS_BMAPI_IGSTATE,    "IGSTATE" }, \
         { XFS_BMAPI_CONTIG,     "CONTIG" }, \
-        { XFS_BMAPI_CONVERT,    "CONVERT" }
+        { XFS_BMAPI_CONVERT,    "CONVERT" }, \
+        { XFS_BMAPI_STACK_SWITCH, "STACK_SWITCH" }
 
 
 static inline int xfs_bmapi_aflag(int w)
@@ -133,6 +135,11 @@ typedef struct xfs_bmalloca {
         char                    userdata;/* set if is user data */
         char                    aeof;   /* allocated space at eof */
         char                    conv;   /* overwriting unwritten extents */
+        char                    stack_switch;
+        int                     flags;
+        struct completion       *done;
+        struct work_struct      work;
+        int                     result;
 } xfs_bmalloca_t;
 
 /*
diff --git a/fs/xfs/xfs_buf_item.c b/fs/xfs/xfs_buf_item.c
index a8d0ed911196..becf4a97efc6 100644
--- a/fs/xfs/xfs_buf_item.c
+++ b/fs/xfs/xfs_buf_item.c
@@ -526,7 +526,25 @@ xfs_buf_item_unpin(
                 }
                 xfs_buf_relse(bp);
         } else if (freed && remove) {
+                /*
+                 * There are currently two references to the buffer - the active
+                 * LRU reference and the buf log item. What we are about to do
+                 * here - simulate a failed IO completion - requires 3
+                 * references.
+                 *
+                 * The LRU reference is removed by the xfs_buf_stale() call. The
+                 * buf item reference is removed by the xfs_buf_iodone()
+                 * callback that is run by xfs_buf_do_callbacks() during ioend
+                 * processing (via the bp->b_iodone callback), and then finally
+                 * the ioend processing will drop the IO reference if the buffer
+                 * is marked XBF_ASYNC.
+                 *
+                 * Hence we need to take an additional reference here so that IO
+                 * completion processing doesn't free the buffer prematurely.
+                 */
                 xfs_buf_lock(bp);
+                xfs_buf_hold(bp);
+                bp->b_flags |= XBF_ASYNC;
                 xfs_buf_ioerror(bp, EIO);
                 XFS_BUF_UNDONE(bp);
                 xfs_buf_stale(bp);
diff --git a/fs/xfs/xfs_fsops.c b/fs/xfs/xfs_fsops.c
index c25b094efbf7..4beaede43277 100644
--- a/fs/xfs/xfs_fsops.c
+++ b/fs/xfs/xfs_fsops.c
@@ -399,9 +399,26 @@ xfs_growfs_data_private(
 
         /* update secondary superblocks. */
         for (agno = 1; agno < nagcount; agno++) {
-                error = xfs_trans_read_buf(mp, NULL, mp->m_ddev_targp,
+                error = 0;
+                /*
+                 * new secondary superblocks need to be zeroed, not read from
+                 * disk as the contents of the new area we are growing into is
+                 * completely unknown.
+                 */
+                if (agno < oagcount) {
+                        error = xfs_trans_read_buf(mp, NULL, mp->m_ddev_targp,
                                   XFS_AGB_TO_DADDR(mp, agno, XFS_SB_BLOCK(mp)),
                                   XFS_FSS_TO_BB(mp, 1), 0, &bp);
+                } else {
+                        bp = xfs_trans_get_buf(NULL, mp->m_ddev_targp,
+                                  XFS_AGB_TO_DADDR(mp, agno, XFS_SB_BLOCK(mp)),
+                                  XFS_FSS_TO_BB(mp, 1), 0);
+                        if (bp)
+                                xfs_buf_zero(bp, 0, BBTOB(bp->b_length));
+                        else
+                                error = ENOMEM;
+                }
+
                 if (error) {
                         xfs_warn(mp,
                 "error %d reading secondary superblock for ag %d",
@@ -423,7 +440,7 @@ xfs_growfs_data_private(
                         break; /* no point in continuing */
                 }
         }
-        return 0;
+        return error;
 
  error0:
         xfs_trans_cancel(tp, XFS_TRANS_ABORT);
diff --git a/fs/xfs/xfs_ialloc.c b/fs/xfs/xfs_ialloc.c
index 445bf1aef31c..c5c4ef4f2bdb 100644
--- a/fs/xfs/xfs_ialloc.c
+++ b/fs/xfs/xfs_ialloc.c
@@ -250,6 +250,7 @@ xfs_ialloc_ag_alloc(
                                         /* boundary */
         struct xfs_perag *pag;
 
+        memset(&args, 0, sizeof(args));
         args.tp = tp;
         args.mp = tp->t_mountp;
 
diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
index 2778258fcfa2..1938b41ee9f5 100644
--- a/fs/xfs/xfs_inode.c
+++ b/fs/xfs/xfs_inode.c
@@ -1509,7 +1509,8 @@ xfs_ifree_cluster(
                  * to mark all the active inodes on the buffer stale.
                  */
                 bp = xfs_trans_get_buf(tp, mp->m_ddev_targp, blkno,
-                                        mp->m_bsize * blks_per_cluster, 0);
+                                        mp->m_bsize * blks_per_cluster,
+                                        XBF_UNMAPPED);
 
                 if (!bp)
                         return ENOMEM;
diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c
index 8305f2ac6773..c1df3c623de2 100644
--- a/fs/xfs/xfs_ioctl.c
+++ b/fs/xfs/xfs_ioctl.c
@@ -70,7 +70,7 @@ xfs_find_handle(
         int                     hsize;
         xfs_handle_t            handle;
         struct inode            *inode;
-        struct fd               f;
+        struct fd               f = {0};
         struct path             path;
         int                     error;
         struct xfs_inode        *ip;
diff --git a/fs/xfs/xfs_iomap.c b/fs/xfs/xfs_iomap.c
index 973dff6ad935..7f537663365b 100644
--- a/fs/xfs/xfs_iomap.c
+++ b/fs/xfs/xfs_iomap.c
@@ -584,7 +584,9 @@ xfs_iomap_write_allocate(
                          * pointer that the caller gave to us.
                          */
                         error = xfs_bmapi_write(tp, ip, map_start_fsb,
-                                                count_fsb, 0, &first_block, 1,
+                                                count_fsb,
+                                                XFS_BMAPI_STACK_SWITCH,
+                                                &first_block, 1,
                                                 imap, &nimaps, &free_list);
                         if (error)
                                 goto trans_cancel;
diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c
index 7f4f9370d0e7..4dad756962d0 100644
--- a/fs/xfs/xfs_log.c
+++ b/fs/xfs/xfs_log.c
@@ -2387,14 +2387,27 @@ xlog_state_do_callback(
 
 
                                 /*
-                                 * update the last_sync_lsn before we drop the
+                                 * Completion of a iclog IO does not imply that
+                                 * a transaction has completed, as transactions
+                                 * can be large enough to span many iclogs. We
+                                 * cannot change the tail of the log half way
+                                 * through a transaction as this may be the only
+                                 * transaction in the log and moving th etail to
+                                 * point to the middle of it will prevent
+                                 * recovery from finding the start of the
+                                 * transaction. Hence we should only update the
+                                 * last_sync_lsn if this iclog contains
+                                 * transaction completion callbacks on it.
+                                 *
+                                 * We have to do this before we drop the
                                  * icloglock to ensure we are the only one that
                                  * can update it.
                                  */
                                 ASSERT(XFS_LSN_CMP(atomic64_read(&log->l_last_sync_lsn),
                                         be64_to_cpu(iclog->ic_header.h_lsn)) <= 0);
-                                atomic64_set(&log->l_last_sync_lsn,
-                                        be64_to_cpu(iclog->ic_header.h_lsn));
+                                if (iclog->ic_callback)
+                                        atomic64_set(&log->l_last_sync_lsn,
+                                                be64_to_cpu(iclog->ic_header.h_lsn));
 
                         } else
                                 ioerrors++;
diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c
index 5da3ace352bf..d308749fabf1 100644
--- a/fs/xfs/xfs_log_recover.c
+++ b/fs/xfs/xfs_log_recover.c
@@ -3541,7 +3541,7 @@ xlog_do_recovery_pass(
                                  *   - order is important.
                                  */
                                 error = xlog_bread_offset(log, 0,
-                                                bblks - split_bblks, hbp,
+                                                bblks - split_bblks, dbp,
                                                 offset + BBTOB(split_bblks));
                                 if (error)
                                         goto bread_err2;
diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h
index c12731582920..f9f5e9eeb9dd 100644
--- a/include/linux/clk-provider.h
+++ b/include/linux/clk-provider.h
@@ -335,8 +335,8 @@ const char *__clk_get_name(struct clk *clk);
 struct clk_hw *__clk_get_hw(struct clk *clk);
 u8 __clk_get_num_parents(struct clk *clk);
 struct clk *__clk_get_parent(struct clk *clk);
-inline int __clk_get_enable_count(struct clk *clk);
-inline int __clk_get_prepare_count(struct clk *clk);
+int __clk_get_enable_count(struct clk *clk);
+int __clk_get_prepare_count(struct clk *clk);
 unsigned long __clk_get_rate(struct clk *clk);
 unsigned long __clk_get_flags(struct clk *clk);
 int __clk_is_enabled(struct clk *clk);
diff --git a/include/linux/mm.h b/include/linux/mm.h
index fa0680402738..bcaab4e6fe91 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1684,9 +1684,5 @@ static inline unsigned int debug_guardpage_minorder(void) { return 0; }
 static inline bool page_is_guard(struct page *page) { return false; }
 #endif /* CONFIG_DEBUG_PAGEALLOC */
 
-extern void reset_zone_present_pages(void);
-extern void fixup_zone_present_pages(int nid, unsigned long start_pfn,
-                                unsigned long end_pfn);
-
 #endif /* __KERNEL__ */
 #endif /* _LINUX_MM_H */
diff --git a/include/linux/mmc/dw_mmc.h b/include/linux/mmc/dw_mmc.h
index 7c6a1139d8fa..96531664a061 100644
--- a/include/linux/mmc/dw_mmc.h
+++ b/include/linux/mmc/dw_mmc.h
@@ -137,7 +137,7 @@ struct dw_mci {
 
         dma_addr_t              sg_dma;
         void                    *sg_cpu;
-        struct dw_mci_dma_ops   *dma_ops;
+        const struct dw_mci_dma_ops     *dma_ops;
 #ifdef CONFIG_MMC_DW_IDMAC
         unsigned int            ring_size;
 #else
@@ -162,7 +162,7 @@ struct dw_mci {
         u16                     data_offset;
         struct device           *dev;
         struct dw_mci_board     *pdata;
-        struct dw_mci_drv_data  *drv_data;
+        const struct dw_mci_drv_data    *drv_data;
         void                    *priv;
         struct clk              *biu_clk;
         struct clk              *ciu_clk;
@@ -186,7 +186,7 @@ struct dw_mci {
 
         struct regulator        *vmmc;  /* Power regulator */
         unsigned long           irq_flags; /* IRQ flags */
-        unsigned int            irq;
+        int                     irq;
 };
 
 /* DMA ops for Internal/External DMAC interface */
diff --git a/include/linux/mmc/sdhci.h b/include/linux/mmc/sdhci.h
index fa8529a859b8..1edcb4dad8c4 100644
--- a/include/linux/mmc/sdhci.h
+++ b/include/linux/mmc/sdhci.h
@@ -91,6 +91,7 @@ struct sdhci_host {
         unsigned int quirks2;   /* More deviations from spec. */
 
 #define SDHCI_QUIRK2_HOST_OFF_CARD_ON                   (1<<0)
+#define SDHCI_QUIRK2_HOST_NO_CMD23                      (1<<1)
 
         int irq;                /* Device IRQ */
         void __iomem *ioaddr;   /* Mapped address */
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index 50aaca81f63d..a23923ba8263 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -752,7 +752,7 @@ extern int init_currently_empty_zone(struct zone *zone, unsigned long start_pfn,
                                      unsigned long size,
                                      enum memmap_context context);
 
-extern void lruvec_init(struct lruvec *lruvec, struct zone *zone);
+extern void lruvec_init(struct lruvec *lruvec);
 
 static inline struct zone *lruvec_zone(struct lruvec *lruvec)
 {
diff --git a/include/linux/of_address.h b/include/linux/of_address.h
index a1984dd037da..e20e3af68fb6 100644
--- a/include/linux/of_address.h
+++ b/include/linux/of_address.h
@@ -28,11 +28,13 @@ static inline unsigned long pci_address_to_pio(phys_addr_t addr) { return -1; }
 #endif
 
 #else /* CONFIG_OF_ADDRESS */
+#ifndef of_address_to_resource
 static inline int of_address_to_resource(struct device_node *dev, int index,
                                          struct resource *r)
 {
         return -EINVAL;
 }
+#endif
 static inline struct device_node *of_find_matching_node_by_address(
                                         struct device_node *from,
                                         const struct of_device_id *matches,
diff --git a/include/linux/platform_data/omap_ocp2scp.h b/include/linux/platform_data/omap_ocp2scp.h
new file mode 100644
index 000000000000..5c6c3939355f
--- /dev/null
+++ b/include/linux/platform_data/omap_ocp2scp.h
@@ -0,0 +1,31 @@
+/*
+ * omap_ocp2scp.h -- ocp2scp header file
+ *
+ * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * Author: Kishon Vijay Abraham I <kishon@ti.com>
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#ifndef __DRIVERS_OMAP_OCP2SCP_H
+#define __DRIVERS_OMAP_OCP2SCP_H
+
+struct omap_ocp2scp_dev {
+        const char                      *drv_name;
+        struct resource                 *res;
+};
+
+struct omap_ocp2scp_platform_data {
+        int                             dev_cnt;
+        struct omap_ocp2scp_dev         **devices;
+};
+#endif /* __DRIVERS_OMAP_OCP2SCP_H */
diff --git a/include/linux/rio.h b/include/linux/rio.h
index 4187da511006..a3e784278667 100644
--- a/include/linux/rio.h
+++ b/include/linux/rio.h
@@ -275,9 +275,11 @@ struct rio_id_table {
  * struct rio_net - RIO network info
  * @node: Node in global list of RIO networks
  * @devices: List of devices in this network
+ * @switches: List of switches in this netowrk
  * @mports: List of master ports accessing this network
  * @hport: Default port for accessing this network
  * @id: RIO network ID
+ * @destid_table: destID allocation table
  */
 struct rio_net {
         struct list_head node;  /* node in list of networks */
diff --git a/include/uapi/linux/eventpoll.h b/include/uapi/linux/eventpoll.h
index 8c99ce7202c5..2c267bcbb85c 100644
--- a/include/uapi/linux/eventpoll.h
+++ b/include/uapi/linux/eventpoll.h
@@ -25,7 +25,6 @@
 #define EPOLL_CTL_ADD 1
 #define EPOLL_CTL_DEL 2
 #define EPOLL_CTL_MOD 3
-#define EPOLL_CTL_DISABLE 4
 
 /*
  * Request the handling of system wakeup events so as to prevent system suspends
diff --git a/include/uapi/linux/oom.h b/include/uapi/linux/oom.h
index a49c4afc7060..b29272d621ce 100644
--- a/include/uapi/linux/oom.h
+++ b/include/uapi/linux/oom.h
@@ -8,4 +8,13 @@
 #define OOM_SCORE_ADJ_MIN       (-1000)
 #define OOM_SCORE_ADJ_MAX       1000
 
+/*
+ * /proc/<pid>/oom_adj set to -17 protects from the oom killer for legacy
+ * purposes.
+ */
+#define OOM_DISABLE (-17)
+/* inclusive */
+#define OOM_ADJUST_MIN (-16)
+#define OOM_ADJUST_MAX 15
+
 #endif /* _UAPI__INCLUDE_LINUX_OOM_H */
diff --git a/include/xen/hvm.h b/include/xen/hvm.h
index b193fa2f9fdd..13e43e41637d 100644
--- a/include/xen/hvm.h
+++ b/include/xen/hvm.h
@@ -5,6 +5,36 @@
 #include <xen/interface/hvm/params.h>
 #include <asm/xen/hypercall.h>
 
+static const char *param_name(int op)
+{
+#define PARAM(x) [HVM_PARAM_##x] = #x
+        static const char *const names[] = {
+                PARAM(CALLBACK_IRQ),
+                PARAM(STORE_PFN),
+                PARAM(STORE_EVTCHN),
+                PARAM(PAE_ENABLED),
+                PARAM(IOREQ_PFN),
+                PARAM(BUFIOREQ_PFN),
+                PARAM(TIMER_MODE),
+                PARAM(HPET_ENABLED),
+                PARAM(IDENT_PT),
+                PARAM(DM_DOMAIN),
+                PARAM(ACPI_S_STATE),
+                PARAM(VM86_TSS),
+                PARAM(VPT_ALIGN),
+                PARAM(CONSOLE_PFN),
+                PARAM(CONSOLE_EVTCHN),
+        };
+#undef PARAM
+
+        if (op >= ARRAY_SIZE(names))
+                return "unknown";
+
+        if (!names[op])
+                return "reserved";
+
+        return names[op];
+}
 static inline int hvm_get_parameter(int idx, uint64_t *value)
 {
         struct xen_hvm_param xhv;
@@ -14,8 +44,8 @@ static inline int hvm_get_parameter(int idx, uint64_t *value)
         xhv.index = idx;
         r = HYPERVISOR_hvm_op(HVMOP_get_param, &xhv);
         if (r < 0) {
-                printk(KERN_ERR "Cannot get hvm parameter %d: %d!\n",
-                        idx, r);
+                printk(KERN_ERR "Cannot get hvm parameter %s (%d): %d!\n",
+                        param_name(idx), idx, r);
                 return r;
         }
         *value = xhv.value;
diff --git a/kernel/futex.c b/kernel/futex.c
index 3717e7b306e0..20ef219bbe9b 100644
--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -716,7 +716,7 @@ static int futex_lock_pi_atomic(u32 __user *uaddr, struct futex_hash_bucket *hb,
                                 struct futex_pi_state **ps,
                                 struct task_struct *task, int set_waiters)
 {
-        int lock_taken, ret, ownerdied = 0;
+        int lock_taken, ret, force_take = 0;
         u32 uval, newval, curval, vpid = task_pid_vnr(task);
 
 retry:
@@ -755,17 +755,15 @@ retry:
         newval = curval | FUTEX_WAITERS;
 
         /*
-         * There are two cases, where a futex might have no owner (the
-         * owner TID is 0): OWNER_DIED. We take over the futex in this
-         * case. We also do an unconditional take over, when the owner
-         * of the futex died.
-         *
-         * This is safe as we are protected by the hash bucket lock !
+         * Should we force take the futex? See below.
          */
-        if (unlikely(ownerdied || !(curval & FUTEX_TID_MASK))) {
-                /* Keep the OWNER_DIED bit */
+        if (unlikely(force_take)) {
+                /*
+                 * Keep the OWNER_DIED and the WAITERS bit and set the
+                 * new TID value.
+                 */
                 newval = (curval & ~FUTEX_TID_MASK) | vpid;
-                ownerdied = 0;
+                force_take = 0;
                 lock_taken = 1;
         }
 
@@ -775,7 +773,7 @@ retry:
                 goto retry;
 
         /*
-         * We took the lock due to owner died take over.
+         * We took the lock due to forced take over.
          */
         if (unlikely(lock_taken))
                 return 1;
@@ -790,20 +788,25 @@ retry:
                 switch (ret) {
                 case -ESRCH:
                         /*
-                         * No owner found for this futex. Check if the
-                         * OWNER_DIED bit is set to figure out whether
-                         * this is a robust futex or not.
+                         * We failed to find an owner for this
+                         * futex. So we have no pi_state to block
+                         * on. This can happen in two cases:
+                         *
+                         * 1) The owner died
+                         * 2) A stale FUTEX_WAITERS bit
+                         *
+                         * Re-read the futex value.
                          */
                         if (get_futex_value_locked(&curval, uaddr))
                                 return -EFAULT;
 
                         /*
-                         * We simply start over in case of a robust
-                         * futex. The code above will take the futex
-                         * and return happy.
+                         * If the owner died or we have a stale
+                         * WAITERS bit the owner TID in the user space
+                         * futex is 0.
                          */
-                        if (curval & FUTEX_OWNER_DIED) {
-                                ownerdied = 1;
+                        if (!(curval & FUTEX_TID_MASK)) {
+                                force_take = 1;
                                 goto retry;
                         }
                 default:
diff --git a/kernel/module.c b/kernel/module.c
index 6085f5ef88ea..6e48c3a43599 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -2293,12 +2293,17 @@ static void layout_symtab(struct module *mod, struct load_info *info)
         src = (void *)info->hdr + symsect->sh_offset;
         nsrc = symsect->sh_size / sizeof(*src);
 
+        /* strtab always starts with a nul, so offset 0 is the empty string. */
+        strtab_size = 1;
+
         /* Compute total space required for the core symbols' strtab. */
-        for (ndst = i = strtab_size = 1; i < nsrc; ++i, ++src)
-                if (is_core_symbol(src, info->sechdrs, info->hdr->e_shnum)) {
-                        strtab_size += strlen(&info->strtab[src->st_name]) + 1;
+        for (ndst = i = 0; i < nsrc; i++) {
+                if (i == 0 ||
+                    is_core_symbol(src+i, info->sechdrs, info->hdr->e_shnum)) {
+                        strtab_size += strlen(&info->strtab[src[i].st_name])+1;
                         ndst++;
                 }
+        }
 
         /* Append room for core symbols at end of core part. */
         info->symoffs = ALIGN(mod->core_size, symsect->sh_addralign ?: 1);
@@ -2332,15 +2337,15 @@ static void add_kallsyms(struct module *mod, const struct load_info *info)
         mod->core_symtab = dst = mod->module_core + info->symoffs;
         mod->core_strtab = s = mod->module_core + info->stroffs;
         src = mod->symtab;
-        *dst = *src;
         *s++ = 0;
-        for (ndst = i = 1; i < mod->num_symtab; ++i, ++src) {
-                if (!is_core_symbol(src, info->sechdrs, info->hdr->e_shnum))
-                        continue;
-
-                dst[ndst] = *src;
-                dst[ndst++].st_name = s - mod->core_strtab;
-                s += strlcpy(s, &mod->strtab[src->st_name], KSYM_NAME_LEN) + 1;
+        for (ndst = i = 0; i < mod->num_symtab; i++) {
+                if (i == 0 ||
+                    is_core_symbol(src+i, info->sechdrs, info->hdr->e_shnum)) {
+                        dst[ndst] = src[i];
+                        dst[ndst++].st_name = s - mod->core_strtab;
+                        s += strlcpy(s, &mod->strtab[src[i].st_name],
+                                     KSYM_NAME_LEN) + 1;
+                }
         }
         mod->core_num_syms = ndst;
 }
diff --git a/mm/bootmem.c b/mm/bootmem.c
index 434be4ae7a04..f468185b3b28 100644
--- a/mm/bootmem.c
+++ b/mm/bootmem.c
@@ -198,8 +198,6 @@ static unsigned long __init free_all_bootmem_core(bootmem_data_t *bdata)
                         int order = ilog2(BITS_PER_LONG);
 
                         __free_pages_bootmem(pfn_to_page(start), order);
-                        fixup_zone_present_pages(page_to_nid(pfn_to_page(start)),
-                                        start, start + BITS_PER_LONG);
                         count += BITS_PER_LONG;
                         start += BITS_PER_LONG;
                 } else {
@@ -210,9 +208,6 @@ static unsigned long __init free_all_bootmem_core(bootmem_data_t *bdata)
                                 if (vec & 1) {
                                         page = pfn_to_page(start + off);
                                         __free_pages_bootmem(page, 0);
-                                        fixup_zone_present_pages(
-                                                page_to_nid(page),
-                                                start + off, start + off + 1);
                                         count++;
                                 }
                                 vec >>= 1;
@@ -226,11 +221,8 @@ static unsigned long __init free_all_bootmem_core(bootmem_data_t *bdata)
         pages = bdata->node_low_pfn - bdata->node_min_pfn;
         pages = bootmem_bootmap_pages(pages);
         count += pages;
-        while (pages--) {
-                fixup_zone_present_pages(page_to_nid(page),
-                                page_to_pfn(page), page_to_pfn(page) + 1);
+        while (pages--)
                 __free_pages_bootmem(page++, 0);
-        }
 
         bdebug("nid=%td released=%lx\n", bdata - bootmem_node_data, count);
 
diff --git a/mm/highmem.c b/mm/highmem.c
index d517cd16a6eb..2da13a5c50e2 100644
--- a/mm/highmem.c
+++ b/mm/highmem.c
@@ -98,7 +98,7 @@ struct page *kmap_to_page(void *vaddr)
 {
         unsigned long addr = (unsigned long)vaddr;
 
-        if (addr >= PKMAP_ADDR(0) && addr <= PKMAP_ADDR(LAST_PKMAP)) {
+        if (addr >= PKMAP_ADDR(0) && addr < PKMAP_ADDR(LAST_PKMAP)) {
                 int i = (addr - PKMAP_ADDR(0)) >> PAGE_SHIFT;
                 return pte_page(pkmap_page_table[i]);
         }
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 7acf43bf04a2..dd39ba000b31 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -1055,12 +1055,24 @@ struct lruvec *mem_cgroup_zone_lruvec(struct zone *zone,
                                       struct mem_cgroup *memcg)
 {
         struct mem_cgroup_per_zone *mz;
+        struct lruvec *lruvec;
 
-        if (mem_cgroup_disabled())
-                return &zone->lruvec;
+        if (mem_cgroup_disabled()) {
+                lruvec = &zone->lruvec;
+                goto out;
+        }
 
         mz = mem_cgroup_zoneinfo(memcg, zone_to_nid(zone), zone_idx(zone));
-        return &mz->lruvec;
+        lruvec = &mz->lruvec;
+out:
+        /*
+         * Since a node can be onlined after the mem_cgroup was created,
+         * we have to be prepared to initialize lruvec->zone here;
+         * and if offlined then reonlined, we need to reinitialize it.
+         */
+        if (unlikely(lruvec->zone != zone))
+                lruvec->zone = zone;
+        return lruvec;
 }
 
 /*
@@ -1087,9 +1099,12 @@ struct lruvec *mem_cgroup_page_lruvec(struct page *page, struct zone *zone)
         struct mem_cgroup_per_zone *mz;
         struct mem_cgroup *memcg;
         struct page_cgroup *pc;
+        struct lruvec *lruvec;
 
-        if (mem_cgroup_disabled())
-                return &zone->lruvec;
+        if (mem_cgroup_disabled()) {
+                lruvec = &zone->lruvec;
+                goto out;
+        }
 
         pc = lookup_page_cgroup(page);
         memcg = pc->mem_cgroup;
@@ -1107,7 +1122,16 @@ struct lruvec *mem_cgroup_page_lruvec(struct page *page, struct zone *zone)
                 pc->mem_cgroup = memcg = root_mem_cgroup;
 
         mz = page_cgroup_zoneinfo(memcg, page);
-        return &mz->lruvec;
+        lruvec = &mz->lruvec;
+out:
+        /*
+         * Since a node can be onlined after the mem_cgroup was created,
+         * we have to be prepared to initialize lruvec->zone here;
+         * and if offlined then reonlined, we need to reinitialize it.
+         */
+        if (unlikely(lruvec->zone != zone))
+                lruvec->zone = zone;
+        return lruvec;
 }
 
 /**
@@ -1452,17 +1476,26 @@ static int mem_cgroup_count_children(struct mem_cgroup *memcg)
 static u64 mem_cgroup_get_limit(struct mem_cgroup *memcg)
 {
         u64 limit;
-        u64 memsw;
 
         limit = res_counter_read_u64(&memcg->res, RES_LIMIT);
-        limit += total_swap_pages << PAGE_SHIFT;
 
-        memsw = res_counter_read_u64(&memcg->memsw, RES_LIMIT);
         /*
-         * If memsw is finite and limits the amount of swap space available
-         * to this memcg, return that limit.
+         * Do not consider swap space if we cannot swap due to swappiness
          */
-        return min(limit, memsw);
+        if (mem_cgroup_swappiness(memcg)) {
+                u64 memsw;
+
+                limit += total_swap_pages << PAGE_SHIFT;
+                memsw = res_counter_read_u64(&memcg->memsw, RES_LIMIT);
+
+                /*
+                 * If memsw is finite and limits the amount of swap space
+                 * available to this memcg, return that limit.
+                 */
+                limit = min(limit, memsw);
+        }
+
+        return limit;
 }
 
 void mem_cgroup_out_of_memory(struct mem_cgroup *memcg, gfp_t gfp_mask,
@@ -3688,17 +3721,17 @@ unsigned long mem_cgroup_soft_limit_reclaim(struct zone *zone, int order,
 static bool mem_cgroup_force_empty_list(struct mem_cgroup *memcg,
                                 int node, int zid, enum lru_list lru)
 {
-        struct mem_cgroup_per_zone *mz;
+        struct lruvec *lruvec;
         unsigned long flags, loop;
         struct list_head *list;
         struct page *busy;
         struct zone *zone;
 
         zone = &NODE_DATA(node)->node_zones[zid];
-        mz = mem_cgroup_zoneinfo(memcg, node, zid);
-        list = &mz->lruvec.lists[lru];
+        lruvec = mem_cgroup_zone_lruvec(zone, memcg);
+        list = &lruvec->lists[lru];
 
-        loop = mz->lru_size[lru];
+        loop = mem_cgroup_get_lru_size(lruvec, lru);
         /* give some margin against EBUSY etc...*/
         loop += 256;
         busy = NULL;
@@ -4736,7 +4769,7 @@ static int alloc_mem_cgroup_per_zone_info(struct mem_cgroup *memcg, int node)
 
         for (zone = 0; zone < MAX_NR_ZONES; zone++) {
                 mz = &pn->zoneinfo[zone];
-                lruvec_init(&mz->lruvec, &NODE_DATA(node)->node_zones[zone]);
+                lruvec_init(&mz->lruvec);
                 mz->usage_in_excess = 0;
                 mz->on_tree = false;
                 mz->memcg = memcg;
diff --git a/mm/memory.c b/mm/memory.c
index fb135ba4aba9..221fc9ffcab1 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -2527,9 +2527,8 @@ static int do_wp_page(struct mm_struct *mm, struct vm_area_struct *vma,
         int ret = 0;
         int page_mkwrite = 0;
         struct page *dirty_page = NULL;
-        unsigned long mmun_start;       /* For mmu_notifiers */
-        unsigned long mmun_end;         /* For mmu_notifiers */
-        bool mmun_called = false;       /* For mmu_notifiers */
+        unsigned long mmun_start = 0;   /* For mmu_notifiers */
+        unsigned long mmun_end = 0;     /* For mmu_notifiers */
 
         old_page = vm_normal_page(vma, address, orig_pte);
         if (!old_page) {
@@ -2708,8 +2707,7 @@ gotten:
                 goto oom_free_new;
 
         mmun_start  = address & PAGE_MASK;
-        mmun_end    = (address & PAGE_MASK) + PAGE_SIZE;
-        mmun_called = true;
+        mmun_end    = mmun_start + PAGE_SIZE;
         mmu_notifier_invalidate_range_start(mm, mmun_start, mmun_end);
 
         /*
@@ -2778,7 +2776,7 @@ gotten:
                 page_cache_release(new_page);
 unlock:
         pte_unmap_unlock(page_table, ptl);
-        if (mmun_called)
+        if (mmun_end > mmun_start)
                 mmu_notifier_invalidate_range_end(mm, mmun_start, mmun_end);
         if (old_page) {
                 /*
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index 56b758ae57d2..e4eeacae2b91 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -106,7 +106,6 @@ static void get_page_bootmem(unsigned long info,  struct page *page,
 void __ref put_page_bootmem(struct page *page)
 {
         unsigned long type;
-        struct zone *zone;
 
         type = (unsigned long) page->lru.next;
         BUG_ON(type < MEMORY_HOTPLUG_MIN_BOOTMEM_TYPE ||
@@ -117,12 +116,6 @@ void __ref put_page_bootmem(struct page *page)
                 set_page_private(page, 0);
                 INIT_LIST_HEAD(&page->lru);
                 __free_pages_bootmem(page, 0);
-
-                zone = page_zone(page);
-                zone_span_writelock(zone);
-                zone->present_pages++;
-                zone_span_writeunlock(zone);
-                totalram_pages++;
         }
 
 }
diff --git a/mm/mmap.c b/mm/mmap.c
index 2d942353d681..9a796c41e7d9 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -334,8 +334,10 @@ void validate_mm(struct mm_struct *mm)
         struct vm_area_struct *vma = mm->mmap;
         while (vma) {
                 struct anon_vma_chain *avc;
+                vma_lock_anon_vma(vma);
                 list_for_each_entry(avc, &vma->anon_vma_chain, same_vma)
                         anon_vma_interval_tree_verify(avc);
+                vma_unlock_anon_vma(vma);
                 vma = vma->vm_next;
                 i++;
         }
diff --git a/mm/mmzone.c b/mm/mmzone.c
index 3cef80f6ac79..4596d81b89b1 100644
--- a/mm/mmzone.c
+++ b/mm/mmzone.c
@@ -87,7 +87,7 @@ int memmap_valid_within(unsigned long pfn,
 }
 #endif /* CONFIG_ARCH_HAS_HOLES_MEMORYMODEL */
 
-void lruvec_init(struct lruvec *lruvec, struct zone *zone)
+void lruvec_init(struct lruvec *lruvec)
 {
         enum lru_list lru;
 
@@ -95,8 +95,4 @@ void lruvec_init(struct lruvec *lruvec, struct zone *zone)
 
         for_each_lru(lru)
                 INIT_LIST_HEAD(&lruvec->lists[lru]);
-
-#ifdef CONFIG_MEMCG
-        lruvec->zone = zone;
-#endif
 }
diff --git a/mm/nobootmem.c b/mm/nobootmem.c
index 714d5d650470..bd82f6b31411 100644
--- a/mm/nobootmem.c
+++ b/mm/nobootmem.c
@@ -116,8 +116,6 @@ static unsigned long __init __free_memory_core(phys_addr_t start,
                 return 0;
 
         __free_pages_memory(start_pfn, end_pfn);
-        fixup_zone_present_pages(pfn_to_nid(start >> PAGE_SHIFT),
-                        start_pfn, end_pfn);
 
         return end_pfn - start_pfn;
 }
@@ -128,7 +126,6 @@ unsigned long __init free_low_memory_core_early(int nodeid)
         phys_addr_t start, end, size;
         u64 i;
 
-        reset_zone_present_pages();
         for_each_free_mem_range(i, MAX_NUMNODES, &start, &end, NULL)
                 count += __free_memory_core(start, end);
 
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 5b74de6702e0..7bb35ac0964a 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -4505,7 +4505,7 @@ static void __paginginit free_area_init_core(struct pglist_data *pgdat,
                 zone->zone_pgdat = pgdat;
 
                 zone_pcp_init(zone);
-                lruvec_init(&zone->lruvec, zone);
+                lruvec_init(&zone->lruvec);
                 if (!size)
                         continue;
 
@@ -6098,37 +6098,3 @@ void dump_page(struct page *page)
         dump_page_flags(page->flags);
         mem_cgroup_print_bad_page(page);
 }
-
-/* reset zone->present_pages */
-void reset_zone_present_pages(void)
-{
-        struct zone *z;
-        int i, nid;
-
-        for_each_node_state(nid, N_HIGH_MEMORY) {
-                for (i = 0; i < MAX_NR_ZONES; i++) {
-                        z = NODE_DATA(nid)->node_zones + i;
-                        z->present_pages = 0;
-                }
-        }
-}
-
-/* calculate zone's present pages in buddy system */
-void fixup_zone_present_pages(int nid, unsigned long start_pfn,
-                                unsigned long end_pfn)
-{
-        struct zone *z;
-        unsigned long zone_start_pfn, zone_end_pfn;
-        int i;
-
-        for (i = 0; i < MAX_NR_ZONES; i++) {
-                z = NODE_DATA(nid)->node_zones + i;
-                zone_start_pfn = z->zone_start_pfn;
-                zone_end_pfn = zone_start_pfn + z->spanned_pages;
-
-                /* if the two regions intersect */
-                if (!(zone_start_pfn >= end_pfn || zone_end_pfn <= start_pfn))
-                        z->present_pages += min(end_pfn, zone_end_pfn) -
-                                            max(start_pfn, zone_start_pfn);
-        }
-}
diff --git a/mm/shmem.c b/mm/shmem.c
index 67afba5117f2..89341b658bd0 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -643,7 +643,7 @@ static void shmem_evict_inode(struct inode *inode)
                 kfree(info->symlink);
 
         simple_xattrs_free(&info->xattrs);
-        BUG_ON(inode->i_blocks);
+        WARN_ON(inode->i_blocks);
         shmem_free_inode(inode->i_sb);
         clear_inode(inode);
 }
@@ -1145,8 +1145,20 @@ repeat:
                 if (!error) {
                         error = shmem_add_to_page_cache(page, mapping, index,
                                                 gfp, swp_to_radix_entry(swap));
-                        /* We already confirmed swap, and make no allocation */
-                        VM_BUG_ON(error);
+                        /*
+                         * We already confirmed swap under page lock, and make
+                         * no memory allocation here, so usually no possibility
+                         * of error; but free_swap_and_cache() only trylocks a
+                         * page, so it is just possible that the entry has been
+                         * truncated or holepunched since swap was confirmed.
+                         * shmem_undo_range() will have done some of the
+                         * unaccounting, now delete_from_swap_cache() will do
+                         * the rest (including mem_cgroup_uncharge_swapcache).
+                         * Reset swap.val? No, leave it so "failed" goes back to
+                         * "repeat": reading a hole and writing should succeed.
+                         */
+                        if (error)
+                                delete_from_swap_cache(page);
                 }
                 if (error)
                         goto failed;
diff --git a/mm/swapfile.c b/mm/swapfile.c
index 71cd288b2001..f91a25547ffe 100644
--- a/mm/swapfile.c
+++ b/mm/swapfile.c
@@ -1494,9 +1494,8 @@ SYSCALL_DEFINE1(swapoff, const char __user *, specialfile)
         BUG_ON(!current->mm);
 
         pathname = getname(specialfile);
-        err = PTR_ERR(pathname);
         if (IS_ERR(pathname))
-                goto out;
+                return PTR_ERR(pathname);
 
         victim = file_open_name(pathname, O_RDWR|O_LARGEFILE, 0);
         err = PTR_ERR(victim);
@@ -1608,6 +1607,7 @@ SYSCALL_DEFINE1(swapoff, const char __user *, specialfile)
 out_dput:
         filp_close(victim, NULL);
 out:
+        putname(pathname);
         return err;
 }
 
diff --git a/mm/vmscan.c b/mm/vmscan.c
index 2624edcfb420..48550c66f1f2 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -1760,28 +1760,6 @@ static bool in_reclaim_compaction(struct scan_control *sc)
         return false;
 }
 
-#ifdef CONFIG_COMPACTION
-/*
- * If compaction is deferred for sc->order then scale the number of pages
- * reclaimed based on the number of consecutive allocation failures
- */
-static unsigned long scale_for_compaction(unsigned long pages_for_compaction,
-                        struct lruvec *lruvec, struct scan_control *sc)
-{
-        struct zone *zone = lruvec_zone(lruvec);
-
-        if (zone->compact_order_failed <= sc->order)
-                pages_for_compaction <<= zone->compact_defer_shift;
-        return pages_for_compaction;
-}
-#else
-static unsigned long scale_for_compaction(unsigned long pages_for_compaction,
-                        struct lruvec *lruvec, struct scan_control *sc)
-{
-        return pages_for_compaction;
-}
-#endif
-
 /*
  * Reclaim/compaction is used for high-order allocation requests. It reclaims
  * order-0 pages before compacting the zone. should_continue_reclaim() returns
@@ -1829,9 +1807,6 @@ static inline bool should_continue_reclaim(struct lruvec *lruvec,
          * inactive lists are large enough, continue reclaiming
          */
         pages_for_compaction = (2UL << sc->order);
-
-        pages_for_compaction = scale_for_compaction(pages_for_compaction,
-                                                    lruvec, sc);
         inactive_lru_pages = get_lru_size(lruvec, LRU_INACTIVE_FILE);
         if (nr_swap_pages > 0)
                 inactive_lru_pages += get_lru_size(lruvec, LRU_INACTIVE_ANON);
@@ -3017,6 +2992,8 @@ static int kswapd(void *p)
                                                 &balanced_classzone_idx);
                 }
         }
+
+        current->reclaim_state = NULL;
         return 0;
 }
 
diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c
index 2d1f89517d99..54800c783f96 100644
--- a/net/batman-adv/soft-interface.c
+++ b/net/batman-adv/soft-interface.c
@@ -347,6 +347,12 @@ void batadv_interface_rx(struct net_device *soft_iface,
 
         soft_iface->last_rx = jiffies;
 
+        /* Let the bridge loop avoidance check the packet. If will
+         * not handle it, we can safely push it up.
+         */
+        if (batadv_bla_rx(bat_priv, skb, vid, is_bcast))
+                goto out;
+
         if (orig_node)
                 batadv_tt_add_temporary_global_entry(bat_priv, orig_node,
                                                      ethhdr->h_source);
@@ -354,12 +360,6 @@ void batadv_interface_rx(struct net_device *soft_iface,
         if (batadv_is_ap_isolated(bat_priv, ethhdr->h_source, ethhdr->h_dest))
                 goto dropped;
 
-        /* Let the bridge loop avoidance check the packet. If will
-         * not handle it, we can safely push it up.
-         */
-        if (batadv_bla_rx(bat_priv, skb, vid, is_bcast))
-                goto out;
-
         netif_rx(skb);
         goto out;
 
diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c
index 9f5705fcf426..582f13405df9 100644
--- a/net/batman-adv/translation-table.c
+++ b/net/batman-adv/translation-table.c
@@ -861,6 +861,12 @@ int batadv_tt_global_add(struct batadv_priv *bat_priv,
                  */
                 common->flags &= ~BATADV_TT_CLIENT_TEMP;
 
+                /* the change can carry possible "attribute" flags like the
+                 * TT_CLIENT_WIFI, therefore they have to be copied in the
+                 * client entry
+                 */
+                tt_global_entry->common.flags |= flags;
+
                 /* If there is the BATADV_TT_CLIENT_ROAM flag set, there is only
                  * one originator left in the list and we previously received a
                  * delete + roaming change for this originator.
@@ -1574,7 +1580,7 @@ batadv_tt_response_fill_table(uint16_t tt_len, uint8_t ttvn,
 
                         memcpy(tt_change->addr, tt_common_entry->addr,
                                ETH_ALEN);
-                        tt_change->flags = BATADV_NO_FLAGS;
+                        tt_change->flags = tt_common_entry->flags;
 
                         tt_count++;
                         tt_change++;
@@ -2545,6 +2551,13 @@ bool batadv_tt_add_temporary_global_entry(struct batadv_priv *bat_priv,
 {
         bool ret = false;
 
+        /* if the originator is a backbone node (meaning it belongs to the same
+         * LAN of this node) the temporary client must not be added because to
+         * reach such destination the node must use the LAN instead of the mesh
+         */
+        if (batadv_bla_is_backbone_gw_orig(bat_priv, orig_node->orig))
+                goto out;
+
         if (!batadv_tt_global_add(bat_priv, orig_node, addr,
                                   BATADV_TT_CLIENT_TEMP,
                                   atomic_read(&orig_node->last_ttvn)))
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 5a3f941b610f..f01e5e135b99 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -1754,11 +1754,11 @@ int hci_register_dev(struct hci_dev *hdev)
         if (hdev->dev_type != HCI_AMP)
                 set_bit(HCI_AUTO_OFF, &hdev->dev_flags);
 
-        schedule_work(&hdev->power_on);
-
         hci_notify(hdev, HCI_DEV_REG);
         hci_dev_hold(hdev);
 
+        schedule_work(&hdev->power_on);
+
         return id;
 
 err_wqueue:
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 399e5024b5bd..158a87bb0c0d 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -326,7 +326,7 @@ static int read_index_list(struct sock *sk, struct hci_dev *hdev, void *data,
         struct hci_dev *d;
         size_t rp_len;
         u16 count;
-        int i, err;
+        int err;
 
         BT_DBG("sock %p", sk);
 
@@ -347,9 +347,7 @@ static int read_index_list(struct sock *sk, struct hci_dev *hdev, void *data,
                 return -ENOMEM;
         }
 
-        rp->num_controllers = cpu_to_le16(count);
-
-        i = 0;
+        count = 0;
         list_for_each_entry(d, &hci_dev_list, list) {
                 if (test_bit(HCI_SETUP, &d->dev_flags))
                         continue;
@@ -357,10 +355,13 @@ static int read_index_list(struct sock *sk, struct hci_dev *hdev, void *data,
                 if (!mgmt_valid_hdev(d))
                         continue;
 
-                rp->index[i++] = cpu_to_le16(d->id);
+                rp->index[count++] = cpu_to_le16(d->id);
                 BT_DBG("Added hci%u", d->id);
         }
 
+        rp->num_controllers = cpu_to_le16(count);
+        rp_len = sizeof(*rp) + (2 * count);
+
         read_unlock(&hci_dev_list_lock);
 
         err = cmd_complete(sk, MGMT_INDEX_NONE, MGMT_OP_READ_INDEX_LIST, 0, rp,
@@ -1366,6 +1367,7 @@ static int remove_uuid(struct sock *sk, struct hci_dev *hdev, void *data,
                         continue;
 
                 list_del(&match->list);
+                kfree(match);
                 found++;
         }
 
diff --git a/net/bluetooth/smp.c b/net/bluetooth/smp.c
index 9176bc17595c..68a9587c9694 100644
--- a/net/bluetooth/smp.c
+++ b/net/bluetooth/smp.c
@@ -267,7 +267,7 @@ static void smp_failure(struct l2cap_conn *conn, u8 reason, u8 send)
 
         clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->hcon->flags);
         mgmt_auth_failed(conn->hcon->hdev, conn->dst, hcon->type,
-                         hcon->dst_type, reason);
+                         hcon->dst_type, HCI_ERROR_AUTH_FAILURE);
 
         cancel_delayed_work_sync(&conn->security_timer);
 
diff --git a/net/core/dev.c b/net/core/dev.c
index 2705a2ab89af..974199daa911 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -2895,8 +2895,10 @@ static int get_rps_cpu(struct net_device *dev, struct sk_buff *skb,
                 if (unlikely(tcpu != next_cpu) &&
                     (tcpu == RPS_NO_CPU || !cpu_online(tcpu) ||
                      ((int)(per_cpu(softnet_data, tcpu).input_queue_head -
-                      rflow->last_qtail)) >= 0))
+                      rflow->last_qtail)) >= 0)) {
+                        tcpu = next_cpu;
                         rflow = set_rps_cpu(dev, skb, rflow, next_cpu);
+                }
 
                 if (tcpu != RPS_NO_CPU && cpu_online(tcpu)) {
                         *rflowp = rflow;
diff --git a/net/core/dev_addr_lists.c b/net/core/dev_addr_lists.c
index 87cc17db2d56..b079c7bbc157 100644
--- a/net/core/dev_addr_lists.c
+++ b/net/core/dev_addr_lists.c
@@ -319,7 +319,8 @@ int dev_addr_del(struct net_device *dev, const unsigned char *addr,
          */
         ha = list_first_entry(&dev->dev_addrs.list,
                               struct netdev_hw_addr, list);
-        if (ha->addr == dev->dev_addr && ha->refcount == 1)
+        if (!memcmp(ha->addr, addr, dev->addr_len) &&
+            ha->type == addr_type && ha->refcount == 1)
                 return -ENOENT;
 
         err = __hw_addr_del(&dev->dev_addrs, addr, dev->addr_len,
diff --git a/net/ipv4/ip_sockglue.c b/net/ipv4/ip_sockglue.c
index 5eea4a811042..14bbfcf717ac 100644
--- a/net/ipv4/ip_sockglue.c
+++ b/net/ipv4/ip_sockglue.c
@@ -457,19 +457,28 @@ static int do_ip_setsockopt(struct sock *sk, int level,
         struct inet_sock *inet = inet_sk(sk);
         int val = 0, err;
 
-        if (((1<<optname) & ((1<<IP_PKTINFO) | (1<<IP_RECVTTL) |
-                             (1<<IP_RECVOPTS) | (1<<IP_RECVTOS) |
-                             (1<<IP_RETOPTS) | (1<<IP_TOS) |
-                             (1<<IP_TTL) | (1<<IP_HDRINCL) |
-                             (1<<IP_MTU_DISCOVER) | (1<<IP_RECVERR) |
-                             (1<<IP_ROUTER_ALERT) | (1<<IP_FREEBIND) |
-                             (1<<IP_PASSSEC) | (1<<IP_TRANSPARENT) |
-                             (1<<IP_MINTTL) | (1<<IP_NODEFRAG))) ||
-            optname == IP_UNICAST_IF ||
-            optname == IP_MULTICAST_TTL ||
-            optname == IP_MULTICAST_ALL ||
-            optname == IP_MULTICAST_LOOP ||
-            optname == IP_RECVORIGDSTADDR) {
+        switch (optname) {
+        case IP_PKTINFO:
+        case IP_RECVTTL:
+        case IP_RECVOPTS:
+        case IP_RECVTOS:
+        case IP_RETOPTS:
+        case IP_TOS:
+        case IP_TTL:
+        case IP_HDRINCL:
+        case IP_MTU_DISCOVER:
+        case IP_RECVERR:
+        case IP_ROUTER_ALERT:
+        case IP_FREEBIND:
+        case IP_PASSSEC:
+        case IP_TRANSPARENT:
+        case IP_MINTTL:
+        case IP_NODEFRAG:
+        case IP_UNICAST_IF:
+        case IP_MULTICAST_TTL:
+        case IP_MULTICAST_ALL:
+        case IP_MULTICAST_LOOP:
+        case IP_RECVORIGDSTADDR:
                 if (optlen >= sizeof(int)) {
                         if (get_user(val, (int __user *) optval))
                                 return -EFAULT;
diff --git a/net/ipv4/ip_vti.c b/net/ipv4/ip_vti.c
index 516188b0dc1e..f4a825d3bd7f 100644
--- a/net/ipv4/ip_vti.c
+++ b/net/ipv4/ip_vti.c
@@ -324,12 +324,17 @@ static int vti_rcv(struct sk_buff *skb)
         if (tunnel != NULL) {
                 struct pcpu_tstats *tstats;
 
+                if (!xfrm4_policy_check(NULL, XFRM_POLICY_IN, skb))
+                        return -1;
+
                 tstats = this_cpu_ptr(tunnel->dev->tstats);
                 u64_stats_update_begin(&tstats->syncp);
                 tstats->rx_packets++;
                 tstats->rx_bytes += skb->len;
                 u64_stats_update_end(&tstats->syncp);
 
+                skb->mark = 0;
+                secpath_reset(skb);
                 skb->dev = tunnel->dev;
                 return 1;
         }
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 733f48593ec3..4aefa0b42c2e 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -1213,7 +1213,7 @@ new_segment:
 wait_for_sndbuf:
                         set_bit(SOCK_NOSPACE, &sk->sk_socket->flags);
 wait_for_memory:
-                        if (copied && likely(!tp->repair))
+                        if (copied)
                                 tcp_push(sk, flags & ~MSG_MORE, mss_now, TCP_NAGLE_PUSH);
 
                         if ((err = sk_stream_wait_memory(sk, &timeo)) != 0)
@@ -1224,7 +1224,7 @@ wait_for_memory:
         }
 
 out:
-        if (copied && likely(!tp->repair))
+        if (copied)
                 tcp_push(sk, flags, mss_now, tp->nonagle);
         release_sock(sk);
         return copied + copied_syn;
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 7839d51fb65b..fc67831656e5 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -5320,11 +5320,6 @@ static bool tcp_validate_incoming(struct sock *sk, struct sk_buff *skb,
                 goto discard;
         }
 
-        /* ts_recent update must be made after we are sure that the packet
-         * is in window.
-         */
-        tcp_replace_ts_recent(tp, TCP_SKB_CB(skb)->seq);
-
         /* step 3: check security and precedence [ignored] */
 
         /* step 4: Check for a SYN
@@ -5559,6 +5554,11 @@ step5:
         if (th->ack && tcp_ack(sk, skb, FLAG_SLOWPATH) < 0)
                 goto discard;
 
+        /* ts_recent update must be made after we are sure that the packet
+         * is in window.
+         */
+        tcp_replace_ts_recent(tp, TCP_SKB_CB(skb)->seq);
+
         tcp_rcv_rtt_measure_ts(sk, skb);
 
         /* Process urgent data. */
@@ -6137,6 +6137,11 @@ int tcp_rcv_state_process(struct sock *sk, struct sk_buff *skb,
         } else
                 goto discard;
 
+        /* ts_recent update must be made after we are sure that the packet
+         * is in window.
+         */
+        tcp_replace_ts_recent(tp, TCP_SKB_CB(skb)->seq);
+
         /* step 6: check the URG bit */
         tcp_urg(sk, skb, th);
 
diff --git a/net/ipv4/tcp_metrics.c b/net/ipv4/tcp_metrics.c
index 53bc5847bfa8..f696d7c2e9fa 100644
--- a/net/ipv4/tcp_metrics.c
+++ b/net/ipv4/tcp_metrics.c
@@ -1,7 +1,6 @@
 #include <linux/rcupdate.h>
 #include <linux/spinlock.h>
 #include <linux/jiffies.h>
-#include <linux/bootmem.h>
 #include <linux/module.h>
 #include <linux/cache.h>
 #include <linux/slab.h>
@@ -9,6 +8,7 @@
 #include <linux/tcp.h>
 #include <linux/hash.h>
 #include <linux/tcp_metrics.h>
+#include <linux/vmalloc.h>
 
 #include <net/inet_connection_sock.h>
 #include <net/net_namespace.h>
@@ -1034,7 +1034,10 @@ static int __net_init tcp_net_metrics_init(struct net *net)
         net->ipv4.tcp_metrics_hash_log = order_base_2(slots);
         size = sizeof(struct tcpm_hash_bucket) << net->ipv4.tcp_metrics_hash_log;
 
-        net->ipv4.tcp_metrics_hash = kzalloc(size, GFP_KERNEL);
+        net->ipv4.tcp_metrics_hash = kzalloc(size, GFP_KERNEL | __GFP_NOWARN);
+        if (!net->ipv4.tcp_metrics_hash)
+                net->ipv4.tcp_metrics_hash = vzalloc(size);
+
         if (!net->ipv4.tcp_metrics_hash)
                 return -ENOMEM;
 
@@ -1055,7 +1058,10 @@ static void __net_exit tcp_net_metrics_exit(struct net *net)
                         tm = next;
                 }
         }
-        kfree(net->ipv4.tcp_metrics_hash);
+        if (is_vmalloc_addr(net->ipv4.tcp_metrics_hash))
+                vfree(net->ipv4.tcp_metrics_hash);
+        else
+                kfree(net->ipv4.tcp_metrics_hash);
 }
 
 static __net_initdata struct pernet_operations tcp_net_metrics_ops = {
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index cfe6ffe1c177..2798706cb063 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -1986,6 +1986,9 @@ static bool tcp_write_xmit(struct sock *sk, unsigned int mss_now, int nonagle,
                 tso_segs = tcp_init_tso_segs(sk, skb, mss_now);
                 BUG_ON(!tso_segs);
 
+                if (unlikely(tp->repair) && tp->repair_queue == TCP_SEND_QUEUE)
+                        goto repair; /* Skip network transmission */
+
                 cwnd_quota = tcp_cwnd_test(tp, skb);
                 if (!cwnd_quota)
                         break;
@@ -2026,6 +2029,7 @@ static bool tcp_write_xmit(struct sock *sk, unsigned int mss_now, int nonagle,
                 if (unlikely(tcp_transmit_skb(sk, skb, 1, gfp)))
                         break;
 
+repair:
                 /* Advance the send_head.  This one is sent out.
                  * This call will increment packets_out.
                  */
diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c
index a7bee6a91335..4b4172dbbe64 100644
--- a/net/ipv6/ipv6_sockglue.c
+++ b/net/ipv6/ipv6_sockglue.c
@@ -827,6 +827,7 @@ pref_skip_coa:
                 if (val < 0 || val > 255)
                         goto e_inval;
                 np->min_hopcount = val;
+                retv = 0;
                 break;
         case IPV6_DONTFRAG:
                 np->dontfrag = valbool;
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 5eab1325a0f6..76690020d605 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -2613,6 +2613,9 @@ static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
                 else
                         local->probe_req_reg--;
 
+                if (!local->open_count)
+                        break;
+
                 ieee80211_queue_work(&local->hw, &local->reconfig_filter);
                 break;
         default:
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 3026519b236a..32e47853f329 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -1377,6 +1377,8 @@ netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb,
                                          struct net_device *dev);
 netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
                                        struct net_device *dev);
+void ieee80211_purge_tx_queue(struct ieee80211_hw *hw,
+                              struct sk_buff_head *skbs);
 
 /* HT */
 void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata,
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index fd8345c20051..d6e43b08d629 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -920,8 +920,10 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
                                 local->hw.wiphy->cipher_suites,
                                 sizeof(u32) * local->hw.wiphy->n_cipher_suites,
                                 GFP_KERNEL);
-                        if (!suites)
-                                return -ENOMEM;
+                        if (!suites) {
+                                result = -ENOMEM;
+                                goto fail_wiphy_register;
+                        }
                         for (r = 0; r < local->hw.wiphy->n_cipher_suites; r++) {
                                 u32 suite = local->hw.wiphy->cipher_suites[r];
                                 if (suite == WLAN_CIPHER_SUITE_WEP40 ||
diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c
index 13d23299e696..8e9bb168b73b 100644
--- a/net/mac80211/scan.c
+++ b/net/mac80211/scan.c
@@ -934,7 +934,7 @@ int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
                                        struct cfg80211_sched_scan_request *req)
 {
         struct ieee80211_local *local = sdata->local;
-        struct ieee80211_sched_scan_ies sched_scan_ies;
+        struct ieee80211_sched_scan_ies sched_scan_ies = {};
         int ret, i;
 
         mutex_lock(&local->mtx);
diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index f7bb54f9ab72..e9d57689c05f 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -122,8 +122,8 @@ static void free_sta_work(struct work_struct *wk)
 
         for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
                 local->total_ps_buffered -= skb_queue_len(&sta->ps_tx_buf[ac]);
-                __skb_queue_purge(&sta->ps_tx_buf[ac]);
-                __skb_queue_purge(&sta->tx_filtered[ac]);
+                ieee80211_purge_tx_queue(&local->hw, &sta->ps_tx_buf[ac]);
+                ieee80211_purge_tx_queue(&local->hw, &sta->tx_filtered[ac]);
         }
 
 #ifdef CONFIG_MAC80211_MESH
@@ -146,7 +146,7 @@ static void free_sta_work(struct work_struct *wk)
                 tid_tx = rcu_dereference_raw(sta->ampdu_mlme.tid_tx[i]);
                 if (!tid_tx)
                         continue;
-                __skb_queue_purge(&tid_tx->pending);
+                ieee80211_purge_tx_queue(&local->hw, &tid_tx->pending);
                 kfree(tid_tx);
         }
 
@@ -982,6 +982,7 @@ void ieee80211_sta_ps_deliver_wakeup(struct sta_info *sta)
         struct ieee80211_local *local = sdata->local;
         struct sk_buff_head pending;
         int filtered = 0, buffered = 0, ac;
+        unsigned long flags;
 
         clear_sta_flag(sta, WLAN_STA_SP);
 
@@ -997,12 +998,16 @@ void ieee80211_sta_ps_deliver_wakeup(struct sta_info *sta)
         for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
                 int count = skb_queue_len(&pending), tmp;
 
+                spin_lock_irqsave(&sta->tx_filtered[ac].lock, flags);
                 skb_queue_splice_tail_init(&sta->tx_filtered[ac], &pending);
+                spin_unlock_irqrestore(&sta->tx_filtered[ac].lock, flags);
                 tmp = skb_queue_len(&pending);
                 filtered += tmp - count;
                 count = tmp;
 
+                spin_lock_irqsave(&sta->ps_tx_buf[ac].lock, flags);
                 skb_queue_splice_tail_init(&sta->ps_tx_buf[ac], &pending);
+                spin_unlock_irqrestore(&sta->ps_tx_buf[ac].lock, flags);
                 tmp = skb_queue_len(&pending);
                 buffered += tmp - count;
         }
diff --git a/net/mac80211/status.c b/net/mac80211/status.c
index 21fa5c72ea14..248247877eb6 100644
--- a/net/mac80211/status.c
+++ b/net/mac80211/status.c
@@ -669,3 +669,12 @@ void ieee80211_free_txskb(struct ieee80211_hw *hw, struct sk_buff *skb)
         dev_kfree_skb_any(skb);
 }
 EXPORT_SYMBOL(ieee80211_free_txskb);
+
+void ieee80211_purge_tx_queue(struct ieee80211_hw *hw,
+                              struct sk_buff_head *skbs)
+{
+        struct sk_buff *skb;
+
+        while ((skb = __skb_dequeue(skbs)))
+                ieee80211_free_txskb(hw, skb);
+}
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 065f81cb5618..6f1981816dc5 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -1361,7 +1361,7 @@ static int invoke_tx_handlers(struct ieee80211_tx_data *tx)
                 if (tx->skb)
                         ieee80211_free_txskb(&tx->local->hw, tx->skb);
                 else
-                        __skb_queue_purge(&tx->skbs);
+                        ieee80211_purge_tx_queue(&tx->local->hw, &tx->skbs);
                 return -1;
         } else if (unlikely(res == TX_QUEUED)) {
                 I802_DEBUG_INC(tx->local->tx_handlers_queued);
@@ -2160,10 +2160,13 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
  */
 void ieee80211_clear_tx_pending(struct ieee80211_local *local)
 {
+        struct sk_buff *skb;
         int i;
 
-        for (i = 0; i < local->hw.queues; i++)
-                skb_queue_purge(&local->pending[i]);
+        for (i = 0; i < local->hw.queues; i++) {
+                while ((skb = skb_dequeue(&local->pending[i])) != NULL)
+                        ieee80211_free_txskb(&local->hw, skb);
+        }
 }
 
 /*
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 9556391b05d7..acbb8c9bae2a 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -1534,6 +1534,8 @@ int ieee80211_reconfig(struct ieee80211_local *local)
                 list_for_each_entry(sdata, &local->interfaces, list) {
                         if (sdata->vif.type != NL80211_IFTYPE_STATION)
                                 continue;
+                        if (!sdata->u.mgd.associated)
+                                continue;
 
                         ieee80211_send_nullfunc(local, sdata, 0);
                 }
diff --git a/net/sctp/proc.c b/net/sctp/proc.c
index c3bea269faf4..9966e7b16451 100644
--- a/net/sctp/proc.c
+++ b/net/sctp/proc.c
@@ -102,7 +102,7 @@ static const struct file_operations sctp_snmp_seq_fops = {
         .open    = sctp_snmp_seq_open,
         .read    = seq_read,
         .llseek  = seq_lseek,
-        .release = single_release,
+        .release = single_release_net,
 };
 
 /* Set up the proc fs entry for 'snmp' object. */
@@ -251,7 +251,7 @@ static const struct file_operations sctp_eps_seq_fops = {
         .open    = sctp_eps_seq_open,
         .read    = seq_read,
         .llseek  = seq_lseek,
-        .release = seq_release,
+        .release = seq_release_net,
 };
 
 /* Set up the proc fs entry for 'eps' object. */
@@ -372,7 +372,7 @@ static const struct file_operations sctp_assocs_seq_fops = {
         .open    = sctp_assocs_seq_open,
         .read    = seq_read,
         .llseek  = seq_lseek,
-        .release = seq_release,
+        .release = seq_release_net,
 };
 
 /* Set up the proc fs entry for 'assocs' object. */
@@ -517,7 +517,7 @@ static const struct file_operations sctp_remaddr_seq_fops = {
         .open = sctp_remaddr_seq_open,
         .read = seq_read,
         .llseek = seq_lseek,
-        .release = seq_release,
+        .release = seq_release_net,
 };
 
 int __net_init sctp_remaddr_proc_init(struct net *net)
diff --git a/net/sunrpc/backchannel_rqst.c b/net/sunrpc/backchannel_rqst.c
index 5a3d675d2f2f..a9c0bbccad6b 100644
--- a/net/sunrpc/backchannel_rqst.c
+++ b/net/sunrpc/backchannel_rqst.c
@@ -172,7 +172,7 @@ out_free:
                 xprt_free_allocation(req);
 
         dprintk("RPC:       setup backchannel transport failed\n");
-        return -1;
+        return -ENOMEM;
 }
 EXPORT_SYMBOL_GPL(xprt_setup_backchannel);
 
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index bcc7d7ee5a51..b75756b05af7 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -141,9 +141,8 @@ static const struct ieee80211_regdomain world_regdom = {
         .reg_rules = {
                 /* IEEE 802.11b/g, channels 1..11 */
                 REG_RULE(2412-10, 2462+10, 40, 6, 20, 0),
-                /* IEEE 802.11b/g, channels 12..13. No HT40
-                 * channel fits here. */
-                REG_RULE(2467-10, 2472+10, 20, 6, 20,
+                /* IEEE 802.11b/g, channels 12..13. */
+                REG_RULE(2467-10, 2472+10, 40, 6, 20,
                         NL80211_RRF_PASSIVE_SCAN |
                         NL80211_RRF_NO_IBSS),
                 /* IEEE 802.11 channel 14 - Only JP enables
diff --git a/scripts/Makefile.modinst b/scripts/Makefile.modinst
index dda4b2b61927..ecbb44797e28 100644
--- a/scripts/Makefile.modinst
+++ b/scripts/Makefile.modinst
@@ -16,8 +16,9 @@ PHONY += $(modules)
 __modinst: $(modules)
         @:
 
+# Don't stop modules_install if we can't sign external modules.
 quiet_cmd_modules_install = INSTALL $@
-      cmd_modules_install = mkdir -p $(2); cp $@ $(2) ; $(mod_strip_cmd) $(2)/$(notdir $@) ; $(mod_sign_cmd) $(2)/$(notdir $@)
+      cmd_modules_install = mkdir -p $(2); cp $@ $(2) ; $(mod_strip_cmd) $(2)/$(notdir $@) ; $(mod_sign_cmd) $(2)/$(notdir $@) $(patsubst %,|| true,$(KBUILD_EXTMOD))
 
 # Modules built outside the kernel source tree go into extra by default
 INSTALL_MOD_DIR ?= extra
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 21a9f5de0a21..f18750e3bd6c 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -1890,8 +1890,10 @@ sub process {
                 }
 
                 if ($realfile =~ m@^(drivers/net/|net/)@ &&
-                    $rawline !~ m@^\+[ \t]*(\/\*|\*\/)@ &&
-                    $rawline =~ m@^\+[ \t]*.+\*\/[ \t]*$@) {
+                    $rawline !~ m@^\+[ \t]*\*/[ \t]*$@ &&       #trailing */
+                    $rawline !~ m@^\+.*/\*.*\*/[ \t]*$@ &&      #inline /*...*/
+                    $rawline !~ m@^\+.*\*{2,}/[ \t]*$@ &&       #trailing **/
+                    $rawline =~ m@^\+[ \t]*.+\*\/[ \t]*$@) {    #non blank */
                         WARN("NETWORKING_BLOCK_COMMENT_STYLE",
                              "networking block comments put the trailing */ on a separate line\n" . $herecurr);
                 }
diff --git a/scripts/kconfig/expr.h b/scripts/kconfig/expr.h
index bd2e09895553..cdd48600e02a 100644
--- a/scripts/kconfig/expr.h
+++ b/scripts/kconfig/expr.h
@@ -12,7 +12,7 @@ extern "C" {
 
 #include <assert.h>
 #include <stdio.h>
-#include <sys/queue.h>
+#include "list.h"
 #ifndef __cplusplus
 #include <stdbool.h>
 #endif
@@ -175,12 +175,11 @@ struct menu {
 #define MENU_ROOT               0x0002
 
 struct jump_key {
-        CIRCLEQ_ENTRY(jump_key) entries;
+        struct list_head entries;
         size_t offset;
         struct menu *target;
         int index;
 };
-CIRCLEQ_HEAD(jk_head, jump_key);
 
 #define JUMP_NB                 9
 
diff --git a/scripts/kconfig/list.h b/scripts/kconfig/list.h
new file mode 100644
index 000000000000..0ae730be5f49
--- /dev/null
+++ b/scripts/kconfig/list.h
@@ -0,0 +1,91 @@
+#ifndef LIST_H
+#define LIST_H
+
+/*
+ * Copied from include/linux/...
+ */
+
+#undef offsetof
+#define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER)
+
+/**
+ * container_of - cast a member of a structure out to the containing structure
+ * @ptr:        the pointer to the member.
+ * @type:       the type of the container struct this is embedded in.
+ * @member:     the name of the member within the struct.
+ *
+ */
+#define container_of(ptr, type, member) ({                      \
+        const typeof( ((type *)0)->member ) *__mptr = (ptr);    \
+        (type *)( (char *)__mptr - offsetof(type,member) );})
+
+
+struct list_head {
+        struct list_head *next, *prev;
+};
+
+
+#define LIST_HEAD_INIT(name) { &(name), &(name) }
+
+#define LIST_HEAD(name) \
+        struct list_head name = LIST_HEAD_INIT(name)
+
+/**
+ * list_entry - get the struct for this entry
+ * @ptr:        the &struct list_head pointer.
+ * @type:       the type of the struct this is embedded in.
+ * @member:     the name of the list_struct within the struct.
+ */
+#define list_entry(ptr, type, member) \
+        container_of(ptr, type, member)
+
+/**
+ * list_for_each_entry  -       iterate over list of given type
+ * @pos:        the type * to use as a loop cursor.
+ * @head:       the head for your list.
+ * @member:     the name of the list_struct within the struct.
+ */
+#define list_for_each_entry(pos, head, member)                          \
+        for (pos = list_entry((head)->next, typeof(*pos), member);      \
+             &pos->member != (head);    \
+             pos = list_entry(pos->member.next, typeof(*pos), member))
+
+/**
+ * list_empty - tests whether a list is empty
+ * @head: the list to test.
+ */
+static inline int list_empty(const struct list_head *head)
+{
+        return head->next == head;
+}
+
+/*
+ * Insert a new entry between two known consecutive entries.
+ *
+ * This is only for internal list manipulation where we know
+ * the prev/next entries already!
+ */
+static inline void __list_add(struct list_head *_new,
+                              struct list_head *prev,
+                              struct list_head *next)
+{
+        next->prev = _new;
+        _new->next = next;
+        _new->prev = prev;
+        prev->next = _new;
+}
+
+/**
+ * list_add_tail - add a new entry
+ * @new: new entry to be added
+ * @head: list head to add it before
+ *
+ * Insert a new entry before the specified head.
+ * This is useful for implementing queues.
+ */
+static inline void list_add_tail(struct list_head *_new, struct list_head *head)
+{
+        __list_add(_new, head->prev, head);
+}
+
+#endif
diff --git a/scripts/kconfig/lkc_proto.h b/scripts/kconfig/lkc_proto.h
index 1d1c08537f1e..ef1a7381f956 100644
--- a/scripts/kconfig/lkc_proto.h
+++ b/scripts/kconfig/lkc_proto.h
@@ -21,9 +21,9 @@ P(menu_get_root_menu,struct menu *,(struct menu *menu));
 P(menu_get_parent_menu,struct menu *,(struct menu *menu));
 P(menu_has_help,bool,(struct menu *menu));
 P(menu_get_help,const char *,(struct menu *menu));
-P(get_symbol_str, void, (struct gstr *r, struct symbol *sym, struct jk_head
+P(get_symbol_str, void, (struct gstr *r, struct symbol *sym, struct list_head
                          *head));
-P(get_relations_str, struct gstr, (struct symbol **sym_arr, struct jk_head
+P(get_relations_str, struct gstr, (struct symbol **sym_arr, struct list_head
                                    *head));
 P(menu_get_ext_help,void,(struct menu *menu, struct gstr *help));
 
diff --git a/scripts/kconfig/mconf.c b/scripts/kconfig/mconf.c
index 48f67448af7b..53975cf87608 100644
--- a/scripts/kconfig/mconf.c
+++ b/scripts/kconfig/mconf.c
@@ -312,7 +312,7 @@ static void set_config_filename(const char *config_filename)
 
 
 struct search_data {
-        struct jk_head *head;
+        struct list_head *head;
         struct menu **targets;
         int *keys;
 };
@@ -323,7 +323,7 @@ static void update_text(char *buf, size_t start, size_t end, void *_data)
         struct jump_key *pos;
         int k = 0;
 
-        CIRCLEQ_FOREACH(pos, data->head, entries) {
+        list_for_each_entry(pos, data->head, entries) {
                 if (pos->offset >= start && pos->offset < end) {
                         char header[4];
 
@@ -375,7 +375,7 @@ again:
 
         sym_arr = sym_re_search(dialog_input);
         do {
-                struct jk_head head = CIRCLEQ_HEAD_INITIALIZER(head);
+                LIST_HEAD(head);
                 struct menu *targets[JUMP_NB];
                 int keys[JUMP_NB + 1], i;
                 struct search_data data = {
diff --git a/scripts/kconfig/menu.c b/scripts/kconfig/menu.c
index a3cade659f89..e98a05c8e508 100644
--- a/scripts/kconfig/menu.c
+++ b/scripts/kconfig/menu.c
@@ -508,7 +508,7 @@ const char *menu_get_help(struct menu *menu)
 }
 
 static void get_prompt_str(struct gstr *r, struct property *prop,
-                           struct jk_head *head)
+                           struct list_head *head)
 {
         int i, j;
         struct menu *submenu[8], *menu, *location = NULL;
@@ -544,12 +544,13 @@ static void get_prompt_str(struct gstr *r, struct property *prop,
                 } else
                         jump->target = location;
 
-                if (CIRCLEQ_EMPTY(head))
+                if (list_empty(head))
                         jump->index = 0;
                 else
-                        jump->index = CIRCLEQ_LAST(head)->index + 1;
+                        jump->index = list_entry(head->prev, struct jump_key,
+                                                 entries)->index + 1;
 
-                CIRCLEQ_INSERT_TAIL(head, jump, entries);
+                list_add_tail(&jump->entries, head);
         }
 
         if (i > 0) {
@@ -573,7 +574,8 @@ static void get_prompt_str(struct gstr *r, struct property *prop,
 /*
  * head is optional and may be NULL
  */
-void get_symbol_str(struct gstr *r, struct symbol *sym, struct jk_head *head)
+void get_symbol_str(struct gstr *r, struct symbol *sym,
+                    struct list_head *head)
 {
         bool hit;
         struct property *prop;
@@ -612,7 +614,7 @@ void get_symbol_str(struct gstr *r, struct symbol *sym, struct jk_head *head)
         str_append(r, "\n\n");
 }
 
-struct gstr get_relations_str(struct symbol **sym_arr, struct jk_head *head)
+struct gstr get_relations_str(struct symbol **sym_arr, struct list_head *head)
 {
         struct symbol *sym;
         struct gstr res = str_new();
diff --git a/security/device_cgroup.c b/security/device_cgroup.c
index 842c254396db..b08d20c66c2e 100644
--- a/security/device_cgroup.c
+++ b/security/device_cgroup.c
@@ -164,8 +164,8 @@ static void dev_exception_clean(struct dev_cgroup *dev_cgroup)
         struct dev_exception_item *ex, *tmp;
 
         list_for_each_entry_safe(ex, tmp, &dev_cgroup->exceptions, list) {
-                list_del(&ex->list);
-                kfree(ex);
+                list_del_rcu(&ex->list);
+                kfree_rcu(ex, rcu);
         }
 }
 
@@ -298,7 +298,7 @@ static int may_access(struct dev_cgroup *dev_cgroup,
         struct dev_exception_item *ex;
         bool match = false;
 
-        list_for_each_entry(ex, &dev_cgroup->exceptions, list) {
+        list_for_each_entry_rcu(ex, &dev_cgroup->exceptions, list) {
                 if ((refex->type & DEV_BLOCK) && !(ex->type & DEV_BLOCK))
                         continue;
                 if ((refex->type & DEV_CHAR) && !(ex->type & DEV_CHAR))
@@ -352,6 +352,8 @@ static int parent_has_perm(struct dev_cgroup *childcg,
  */
 static inline int may_allow_all(struct dev_cgroup *parent)
 {
+        if (!parent)
+                return 1;
         return parent->behavior == DEVCG_DEFAULT_ALLOW;
 }
 
@@ -376,11 +378,14 @@ static int devcgroup_update_access(struct dev_cgroup *devcgroup,
         int count, rc;
         struct dev_exception_item ex;
         struct cgroup *p = devcgroup->css.cgroup;
-        struct dev_cgroup *parent = cgroup_to_devcgroup(p->parent);
+        struct dev_cgroup *parent = NULL;
 
         if (!capable(CAP_SYS_ADMIN))
                 return -EPERM;
 
+        if (p->parent)
+                parent = cgroup_to_devcgroup(p->parent);
+
         memset(&ex, 0, sizeof(ex));
         b = buffer;
 
@@ -391,11 +396,14 @@ static int devcgroup_update_access(struct dev_cgroup *devcgroup,
                         if (!may_allow_all(parent))
                                 return -EPERM;
                         dev_exception_clean(devcgroup);
+                        devcgroup->behavior = DEVCG_DEFAULT_ALLOW;
+                        if (!parent)
+                                break;
+
                         rc = dev_exceptions_copy(&devcgroup->exceptions,
                                                  &parent->exceptions);
                         if (rc)
                                 return rc;
-                        devcgroup->behavior = DEVCG_DEFAULT_ALLOW;
                         break;
                 case DEVCG_DENY:
                         dev_exception_clean(devcgroup);
diff --git a/sound/core/oss/mixer_oss.c b/sound/core/oss/mixer_oss.c
index a9a2e63c0222..e8a1d18774b2 100644
--- a/sound/core/oss/mixer_oss.c
+++ b/sound/core/oss/mixer_oss.c
@@ -76,6 +76,7 @@ static int snd_mixer_oss_open(struct inode *inode, struct file *file)
                 snd_card_unref(card);
                 return -EFAULT;
         }
+        snd_card_unref(card);
         return 0;
 }
 
diff --git a/sound/core/oss/pcm_oss.c b/sound/core/oss/pcm_oss.c
index f337b66a020b..4c1cc51772e6 100644
--- a/sound/core/oss/pcm_oss.c
+++ b/sound/core/oss/pcm_oss.c
@@ -2454,6 +2454,7 @@ static int snd_pcm_oss_open(struct inode *inode, struct file *file)
         mutex_unlock(&pcm->open_mutex);
         if (err < 0)
                 goto __error;
+        snd_card_unref(pcm->card);
         return err;
 
       __error:
diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c
index 6e8872de5ba0..f9ddecf2f4cd 100644
--- a/sound/core/pcm_native.c
+++ b/sound/core/pcm_native.c
@@ -2122,7 +2122,8 @@ static int snd_pcm_playback_open(struct inode *inode, struct file *file)
         pcm = snd_lookup_minor_data(iminor(inode),
                                     SNDRV_DEVICE_TYPE_PCM_PLAYBACK);
         err = snd_pcm_open(file, pcm, SNDRV_PCM_STREAM_PLAYBACK);
-        snd_card_unref(pcm->card);
+        if (pcm)
+                snd_card_unref(pcm->card);
         return err;
 }
 
@@ -2135,7 +2136,8 @@ static int snd_pcm_capture_open(struct inode *inode, struct file *file)
         pcm = snd_lookup_minor_data(iminor(inode),
                                     SNDRV_DEVICE_TYPE_PCM_CAPTURE);
         err = snd_pcm_open(file, pcm, SNDRV_PCM_STREAM_CAPTURE);
-        snd_card_unref(pcm->card);
+        if (pcm)
+                snd_card_unref(pcm->card);
         return err;
 }
 
diff --git a/sound/core/sound.c b/sound/core/sound.c
index 89780c323f19..70ccdab74153 100644
--- a/sound/core/sound.c
+++ b/sound/core/sound.c
@@ -114,7 +114,7 @@ void *snd_lookup_minor_data(unsigned int minor, int type)
         mreg = snd_minors[minor];
         if (mreg && mreg->type == type) {
                 private_data = mreg->private_data;
-                if (mreg->card_ptr)
+                if (private_data && mreg->card_ptr)
                         atomic_inc(&mreg->card_ptr->refcount);
         } else
                 private_data = NULL;
diff --git a/sound/core/sound_oss.c b/sound/core/sound_oss.c
index e1d79ee35906..726a49ac9725 100644
--- a/sound/core/sound_oss.c
+++ b/sound/core/sound_oss.c
@@ -54,7 +54,7 @@ void *snd_lookup_oss_minor_data(unsigned int minor, int type)
         mreg = snd_oss_minors[minor];
         if (mreg && mreg->type == type) {
                 private_data = mreg->private_data;
-                if (mreg->card_ptr)
+                if (private_data && mreg->card_ptr)
                         atomic_inc(&mreg->card_ptr->refcount);
         } else
                 private_data = NULL;
diff --git a/sound/i2c/other/ak4113.c b/sound/i2c/other/ak4113.c
index ef68d710d08c..e04e750a77ed 100644
--- a/sound/i2c/other/ak4113.c
+++ b/sound/i2c/other/ak4113.c
@@ -426,7 +426,7 @@ static struct snd_kcontrol_new snd_ak4113_iec958_controls[] = {
 },
 {
         .iface =        SNDRV_CTL_ELEM_IFACE_PCM,
-        .name =         "IEC958 Preample Capture Default",
+        .name =         "IEC958 Preamble Capture Default",
         .access =       SNDRV_CTL_ELEM_ACCESS_READ |
                 SNDRV_CTL_ELEM_ACCESS_VOLATILE,
         .info =         snd_ak4113_spdif_pinfo,
diff --git a/sound/i2c/other/ak4114.c b/sound/i2c/other/ak4114.c
index 816e7d225fb0..5bf4fca19e48 100644
--- a/sound/i2c/other/ak4114.c
+++ b/sound/i2c/other/ak4114.c
@@ -401,7 +401,7 @@ static struct snd_kcontrol_new snd_ak4114_iec958_controls[] = {
 },
 {
         .iface =        SNDRV_CTL_ELEM_IFACE_PCM,
-        .name =         "IEC958 Preample Capture Default",
+        .name =         "IEC958 Preamble Capture Default",
         .access =       SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
         .info =         snd_ak4114_spdif_pinfo,
         .get =          snd_ak4114_spdif_pget,
diff --git a/sound/i2c/other/ak4117.c b/sound/i2c/other/ak4117.c
index b4b2a51fc117..40e33c9f2b09 100644
--- a/sound/i2c/other/ak4117.c
+++ b/sound/i2c/other/ak4117.c
@@ -380,7 +380,7 @@ static struct snd_kcontrol_new snd_ak4117_iec958_controls[] = {
 },
 {
         .iface =        SNDRV_CTL_ELEM_IFACE_PCM,
-        .name =         "IEC958 Preample Capture Default",
+        .name =         "IEC958 Preamble Capture Default",
         .access =       SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
         .info =         snd_ak4117_spdif_pinfo,
         .get =          snd_ak4117_spdif_pget,
diff --git a/sound/pci/es1968.c b/sound/pci/es1968.c
index 5d0e568fdea1..7266020c16cb 100644
--- a/sound/pci/es1968.c
+++ b/sound/pci/es1968.c
@@ -2581,9 +2581,14 @@ static u8 snd_es1968_tea575x_get_pins(struct snd_tea575x *tea)
         struct es1968 *chip = tea->private_data;
         unsigned long io = chip->io_port + GPIO_DATA;
         u16 val = inw(io);
+        u8 ret;
 
-        return  (val & STR_DATA) ? TEA575X_DATA : 0 |
-                (val & STR_MOST) ? TEA575X_MOST : 0;
+        ret = 0;
+        if (val & STR_DATA)
+                ret |= TEA575X_DATA;
+        if (val & STR_MOST)
+                ret |= TEA575X_MOST;
+        return ret;
 }
 
 static void snd_es1968_tea575x_set_direction(struct snd_tea575x *tea, bool output)
@@ -2655,6 +2660,8 @@ static struct ess_device_list pm_whitelist[] __devinitdata = {
         { TYPE_MAESTRO2E, 0x1179 },
         { TYPE_MAESTRO2E, 0x14c0 },     /* HP omnibook 4150 */
         { TYPE_MAESTRO2E, 0x1558 },
+        { TYPE_MAESTRO2E, 0x125d },     /* a PCI card, e.g. Terratec DMX */
+        { TYPE_MAESTRO2, 0x125d },      /* a PCI card, e.g. SF64-PCE2 */
 };
 
 static struct ess_device_list mpu_blacklist[] __devinitdata = {
diff --git a/sound/pci/fm801.c b/sound/pci/fm801.c
index cc2e91d15538..c5806f89be1e 100644
--- a/sound/pci/fm801.c
+++ b/sound/pci/fm801.c
@@ -767,9 +767,14 @@ static u8 snd_fm801_tea575x_get_pins(struct snd_tea575x *tea)
         struct fm801 *chip = tea->private_data;
         unsigned short reg = inw(FM801_REG(chip, GPIO_CTRL));
         struct snd_fm801_tea575x_gpio gpio = *get_tea575x_gpio(chip);
-
-        return  (reg & FM801_GPIO_GP(gpio.data)) ? TEA575X_DATA : 0 |
-                (reg & FM801_GPIO_GP(gpio.most)) ? TEA575X_MOST : 0;
+        u8 ret;
+
+        ret = 0;
+        if (reg & FM801_GPIO_GP(gpio.data))
+                ret |= TEA575X_DATA;
+        if (reg & FM801_GPIO_GP(gpio.most))
+                ret |= TEA575X_MOST;
+        return ret;
 }
 
 static void snd_fm801_tea575x_set_direction(struct snd_tea575x *tea, bool output)
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index 72b085ae7d46..cd2dbaf1be78 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -3563,6 +3563,8 @@ static DEFINE_PCI_DEVICE_TABLE(azx_ids) = {
         /* Teradici */
         { PCI_DEVICE(0x6549, 0x1200),
           .driver_data = AZX_DRIVER_TERA | AZX_DCAPS_NO_64BIT },
+        { PCI_DEVICE(0x6549, 0x2200),
+          .driver_data = AZX_DRIVER_TERA | AZX_DCAPS_NO_64BIT },
         /* Creative X-Fi (CA0110-IBG) */
         /* CTHDA chips */
         { PCI_DEVICE(0x1102, 0x0010),
diff --git a/sound/pci/hda/patch_analog.c b/sound/pci/hda/patch_analog.c
index cdd43eadbc67..1eeba7386666 100644
--- a/sound/pci/hda/patch_analog.c
+++ b/sound/pci/hda/patch_analog.c
@@ -545,6 +545,7 @@ static int ad198x_build_pcms(struct hda_codec *codec)
         if (spec->multiout.dig_out_nid) {
                 info++;
                 codec->num_pcms++;
+                codec->spdif_status_reset = 1;
                 info->name = "AD198x Digital";
                 info->pcm_type = HDA_PCM_TYPE_SPDIF;
                 info->stream[SNDRV_PCM_STREAM_PLAYBACK] = ad198x_pcm_digital_playback;
diff --git a/sound/pci/hda/patch_cirrus.c b/sound/pci/hda/patch_cirrus.c
index 61a71131711c..d5f3a26d608d 100644
--- a/sound/pci/hda/patch_cirrus.c
+++ b/sound/pci/hda/patch_cirrus.c
@@ -101,8 +101,8 @@ enum {
 #define CS420X_VENDOR_NID       0x11
 #define CS_DIG_OUT1_PIN_NID     0x10
 #define CS_DIG_OUT2_PIN_NID     0x15
-#define CS_DMIC1_PIN_NID        0x12
-#define CS_DMIC2_PIN_NID        0x0e
+#define CS_DMIC1_PIN_NID        0x0e
+#define CS_DMIC2_PIN_NID        0x12
 
 /* coef indices */
 #define IDX_SPDIF_STAT          0x0000
@@ -1079,14 +1079,18 @@ static void init_input(struct hda_codec *codec)
                         cs_automic(codec, NULL);
 
                 coef = 0x000a; /* ADC1/2 - Digital and Analog Soft Ramp */
+                cs_vendor_coef_set(codec, IDX_ADC_CFG, coef);
+
+                coef = cs_vendor_coef_get(codec, IDX_BEEP_CFG);
                 if (is_active_pin(codec, CS_DMIC2_PIN_NID))
-                        coef |= 0x0500; /* DMIC2 2 chan on, GPIO1 off */
+                        coef |= 1 << 4; /* DMIC2 2 chan on, GPIO1 off */
                 if (is_active_pin(codec, CS_DMIC1_PIN_NID))
-                        coef |= 0x1800; /* DMIC1 2 chan on, GPIO0 off
+                        coef |= 1 << 3; /* DMIC1 2 chan on, GPIO0 off
                                          * No effect if SPDIF_OUT2 is
                                          * selected in IDX_SPDIF_CTL.
                                         */
-                cs_vendor_coef_set(codec, IDX_ADC_CFG, coef);
+
+                cs_vendor_coef_set(codec, IDX_BEEP_CFG, coef);
         } else {
                 if (spec->mic_detect)
                         cs_automic(codec, NULL);
@@ -1107,7 +1111,7 @@ static const struct hda_verb cs_coef_init_verbs[] = {
           | 0x0400 /* Disable Coefficient Auto increment */
           )},
         /* Beep */
-        {0x11, AC_VERB_SET_COEF_INDEX, IDX_DAC_CFG},
+        {0x11, AC_VERB_SET_COEF_INDEX, IDX_BEEP_CFG},
         {0x11, AC_VERB_SET_PROC_COEF, 0x0007}, /* Enable Beep thru DAC1/2/3 */
 
         {} /* terminator */
@@ -1728,8 +1732,7 @@ static int cs421x_mux_enum_put(struct snd_kcontrol *kcontrol,
 
 }
 
-static struct snd_kcontrol_new cs421x_capture_source = {
-
+static const struct snd_kcontrol_new cs421x_capture_source = {
         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
         .name = "Capture Source",
         .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
@@ -1946,7 +1949,7 @@ static int cs421x_suspend(struct hda_codec *codec)
 }
 #endif
 
-static struct hda_codec_ops cs421x_patch_ops = {
+static const struct hda_codec_ops cs421x_patch_ops = {
         .build_controls = cs421x_build_controls,
         .build_pcms = cs_build_pcms,
         .init = cs421x_init,
diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index f7397ad02a0d..68fd49294b26 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -5407,6 +5407,7 @@ static const struct snd_pci_quirk alc882_fixup_tbl[] = {
         SND_PCI_QUIRK(0x106b, 0x4000, "MacbookPro 5,1", ALC889_FIXUP_IMAC91_VREF),
         SND_PCI_QUIRK(0x106b, 0x4100, "Macmini 3,1", ALC889_FIXUP_IMAC91_VREF),
         SND_PCI_QUIRK(0x106b, 0x4200, "Mac Pro 5,1", ALC885_FIXUP_MACPRO_GPIO),
+        SND_PCI_QUIRK(0x106b, 0x4300, "iMac 9,1", ALC889_FIXUP_IMAC91_VREF),
         SND_PCI_QUIRK(0x106b, 0x4600, "MacbookPro 5,2", ALC889_FIXUP_IMAC91_VREF),
         SND_PCI_QUIRK(0x106b, 0x4900, "iMac 9,1 Aluminum", ALC889_FIXUP_IMAC91_VREF),
         SND_PCI_QUIRK(0x106b, 0x4a00, "Macbook 5,2", ALC889_FIXUP_IMAC91_VREF),
@@ -5840,7 +5841,7 @@ static int alc269_parse_auto_config(struct hda_codec *codec)
         return alc_parse_auto_config(codec, alc269_ignore, ssids);
 }
 
-static void alc269_toggle_power_output(struct hda_codec *codec, int power_up)
+static void alc269vb_toggle_power_output(struct hda_codec *codec, int power_up)
 {
         int val = alc_read_coef_idx(codec, 0x04);
         if (power_up)
@@ -5857,10 +5858,10 @@ static void alc269_shutup(struct hda_codec *codec)
         if (spec->codec_variant != ALC269_TYPE_ALC269VB)
                 return;
 
-        if ((alc_get_coef0(codec) & 0x00ff) == 0x017)
-                alc269_toggle_power_output(codec, 0);
-        if ((alc_get_coef0(codec) & 0x00ff) == 0x018) {
-                alc269_toggle_power_output(codec, 0);
+        if (spec->codec_variant == ALC269_TYPE_ALC269VB)
+                alc269vb_toggle_power_output(codec, 0);
+        if (spec->codec_variant == ALC269_TYPE_ALC269VB &&
+                        (alc_get_coef0(codec) & 0x00ff) == 0x018) {
                 msleep(150);
         }
 }
@@ -5870,24 +5871,22 @@ static int alc269_resume(struct hda_codec *codec)
 {
         struct alc_spec *spec = codec->spec;
 
-        if (spec->codec_variant == ALC269_TYPE_ALC269VB ||
+        if (spec->codec_variant == ALC269_TYPE_ALC269VB)
+                alc269vb_toggle_power_output(codec, 0);
+        if (spec->codec_variant == ALC269_TYPE_ALC269VB &&
                         (alc_get_coef0(codec) & 0x00ff) == 0x018) {
-                alc269_toggle_power_output(codec, 0);
                 msleep(150);
         }
 
         codec->patch_ops.init(codec);
 
-        if (spec->codec_variant == ALC269_TYPE_ALC269VB ||
+        if (spec->codec_variant == ALC269_TYPE_ALC269VB)
+                alc269vb_toggle_power_output(codec, 1);
+        if (spec->codec_variant == ALC269_TYPE_ALC269VB &&
                         (alc_get_coef0(codec) & 0x00ff) == 0x017) {
-                alc269_toggle_power_output(codec, 1);
                 msleep(200);
         }
 
-        if (spec->codec_variant == ALC269_TYPE_ALC269VB ||
-                        (alc_get_coef0(codec) & 0x00ff) == 0x018)
-                alc269_toggle_power_output(codec, 1);
-
         snd_hda_codec_resume_amp(codec);
         snd_hda_codec_resume_cache(codec);
         hda_call_check_power_status(codec, 0x01);
@@ -7079,6 +7078,7 @@ static const struct hda_codec_preset snd_hda_preset_realtek[] = {
           .patch = patch_alc662 },
         { .id = 0x10ec0663, .name = "ALC663", .patch = patch_alc662 },
         { .id = 0x10ec0665, .name = "ALC665", .patch = patch_alc662 },
+        { .id = 0x10ec0668, .name = "ALC668", .patch = patch_alc662 },
         { .id = 0x10ec0670, .name = "ALC670", .patch = patch_alc662 },
         { .id = 0x10ec0680, .name = "ALC680", .patch = patch_alc680 },
         { .id = 0x10ec0880, .name = "ALC880", .patch = patch_alc880 },
@@ -7096,6 +7096,7 @@ static const struct hda_codec_preset snd_hda_preset_realtek[] = {
         { .id = 0x10ec0889, .name = "ALC889", .patch = patch_alc882 },
         { .id = 0x10ec0892, .name = "ALC892", .patch = patch_alc662 },
         { .id = 0x10ec0899, .name = "ALC898", .patch = patch_alc882 },
+        { .id = 0x10ec0900, .name = "ALC1150", .patch = patch_alc882 },
         {} /* terminator */
 };
 
diff --git a/sound/pci/hda/patch_via.c b/sound/pci/hda/patch_via.c
index 72a2f60b087c..019e1a00414a 100644
--- a/sound/pci/hda/patch_via.c
+++ b/sound/pci/hda/patch_via.c
@@ -1809,11 +1809,11 @@ static int via_auto_fill_dac_nids(struct hda_codec *codec)
 {
         struct via_spec *spec = codec->spec;
         const struct auto_pin_cfg *cfg = &spec->autocfg;
-        int i, dac_num;
+        int i;
         hda_nid_t nid;
 
+        spec->multiout.num_dacs = 0;
         spec->multiout.dac_nids = spec->private_dac_nids;
-        dac_num = 0;
         for (i = 0; i < cfg->line_outs; i++) {
                 hda_nid_t dac = 0;
                 nid = cfg->line_out_pins[i];
@@ -1824,16 +1824,13 @@ static int via_auto_fill_dac_nids(struct hda_codec *codec)
                 if (!i && parse_output_path(codec, nid, dac, 1,
                                             &spec->out_mix_path))
                         dac = spec->out_mix_path.path[0];
-                if (dac) {
-                        spec->private_dac_nids[i] = dac;
-                        dac_num++;
-                }
+                if (dac)
+                        spec->private_dac_nids[spec->multiout.num_dacs++] = dac;
         }
         if (!spec->out_path[0].depth && spec->out_mix_path.depth) {
                 spec->out_path[0] = spec->out_mix_path;
                 spec->out_mix_path.depth = 0;
         }
-        spec->multiout.num_dacs = dac_num;
         return 0;
 }
 
@@ -3628,6 +3625,7 @@ static void set_widgets_power_state_vt2002P(struct hda_codec *codec)
  */
 enum {
         VIA_FIXUP_INTMIC_BOOST,
+        VIA_FIXUP_ASUS_G75,
 };
 
 static void via_fixup_intmic_boost(struct hda_codec *codec,
@@ -3642,13 +3640,35 @@ static const struct hda_fixup via_fixups[] = {
                 .type = HDA_FIXUP_FUNC,
                 .v.func = via_fixup_intmic_boost,
         },
+        [VIA_FIXUP_ASUS_G75] = {
+                .type = HDA_FIXUP_PINS,
+                .v.pins = (const struct hda_pintbl[]) {
+                        /* set 0x24 and 0x33 as speakers */
+                        { 0x24, 0x991301f0 },
+                        { 0x33, 0x991301f1 }, /* subwoofer */
+                        { }
+                }
+        },
 };
 
 static const struct snd_pci_quirk vt2002p_fixups[] = {
+        SND_PCI_QUIRK(0x1043, 0x1487, "Asus G75", VIA_FIXUP_ASUS_G75),
         SND_PCI_QUIRK(0x1043, 0x8532, "Asus X202E", VIA_FIXUP_INTMIC_BOOST),
         {}
 };
 
+/* NIDs 0x24 and 0x33 on VT1802 have connections to non-existing NID 0x3e
+ * Replace this with mixer NID 0x1c
+ */
+static void fix_vt1802_connections(struct hda_codec *codec)
+{
+        static hda_nid_t conn_24[] = { 0x14, 0x1c };
+        static hda_nid_t conn_33[] = { 0x1c };
+
+        snd_hda_override_conn_list(codec, 0x24, ARRAY_SIZE(conn_24), conn_24);
+        snd_hda_override_conn_list(codec, 0x33, ARRAY_SIZE(conn_33), conn_33);
+}
+
 /* patch for vt2002P */
 static int patch_vt2002P(struct hda_codec *codec)
 {
@@ -3663,6 +3683,8 @@ static int patch_vt2002P(struct hda_codec *codec)
         spec->aa_mix_nid = 0x21;
         override_mic_boost(codec, 0x2b, 0, 3, 40);
         override_mic_boost(codec, 0x29, 0, 3, 40);
+        if (spec->codec_type == VT1802)
+                fix_vt1802_connections(codec);
         add_secret_dac_path(codec);
 
         snd_hda_pick_fixup(codec, NULL, vt2002p_fixups, via_fixups);
diff --git a/sound/pci/rme9652/hdspm.c b/sound/pci/rme9652/hdspm.c
index f1cd1e387801..748e36c66603 100644
--- a/sound/pci/rme9652/hdspm.c
+++ b/sound/pci/rme9652/hdspm.c
@@ -3979,7 +3979,8 @@ static int snd_hdspm_get_sync_check(struct snd_kcontrol *kcontrol,
                 case 8: /* SYNC IN */
                         val = hdspm_sync_in_sync_check(hdspm); break;
                 default:
-                        val = hdspm_s1_sync_check(hdspm, ucontrol->id.index-1);
+                        val = hdspm_s1_sync_check(hdspm,
+                                        kcontrol->private_value-1);
                 }
                 break;
 
@@ -4899,7 +4900,7 @@ snd_hdspm_proc_read_madi(struct snd_info_entry * entry,
                 insel = "Coaxial";
                 break;
         default:
-                insel = "Unkown";
+                insel = "Unknown";
         }
 
         snd_iprintf(buffer,
diff --git a/sound/soc/codecs/cs42l52.c b/sound/soc/codecs/cs42l52.c
index 61599298fb26..97a81051e88d 100644
--- a/sound/soc/codecs/cs42l52.c
+++ b/sound/soc/codecs/cs42l52.c
@@ -763,7 +763,7 @@ static int cs42l52_set_sysclk(struct snd_soc_dai *codec_dai,
         if ((freq >= CS42L52_MIN_CLK) && (freq <= CS42L52_MAX_CLK)) {
                 cs42l52->sysclk = freq;
         } else {
-                dev_err(codec->dev, "Invalid freq paramter\n");
+                dev_err(codec->dev, "Invalid freq parameter\n");
                 return -EINVAL;
         }
         return 0;
@@ -773,7 +773,6 @@ static int cs42l52_set_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
 {
         struct snd_soc_codec *codec = codec_dai->codec;
         struct cs42l52_private *cs42l52 = snd_soc_codec_get_drvdata(codec);
-        int ret = 0;
         u8 iface = 0;
 
         switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
@@ -822,7 +821,7 @@ static int cs42l52_set_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
         case SND_SOC_DAIFMT_NB_IF:
                 break;
         default:
-                ret = -EINVAL;
+                return -EINVAL;
         }
         cs42l52->config.format = iface;
         snd_soc_write(codec, CS42L52_IFACE_CTL1, cs42l52->config.format);
diff --git a/sound/soc/codecs/wm5102.c b/sound/soc/codecs/wm5102.c
index 1722b586bdba..7394e73fa43c 100644
--- a/sound/soc/codecs/wm5102.c
+++ b/sound/soc/codecs/wm5102.c
@@ -42,6 +42,556 @@ static DECLARE_TLV_DB_SCALE(eq_tlv, -1200, 100, 0);
 static DECLARE_TLV_DB_SCALE(digital_tlv, -6400, 50, 0);
 static DECLARE_TLV_DB_SCALE(noise_tlv, 0, 600, 0);
 
+static const struct reg_default wm5102_sysclk_reva_patch[] = {
+        { 0x3000, 0x2225 },
+        { 0x3001, 0x3a03 },
+        { 0x3002, 0x0225 },
+        { 0x3003, 0x0801 },
+        { 0x3004, 0x6249 },
+        { 0x3005, 0x0c04 },
+        { 0x3006, 0x0225 },
+        { 0x3007, 0x5901 },
+        { 0x3008, 0xe249 },
+        { 0x3009, 0x030d },
+        { 0x300a, 0x0249 },
+        { 0x300b, 0x2c01 },
+        { 0x300c, 0xe249 },
+        { 0x300d, 0x4342 },
+        { 0x300e, 0xe249 },
+        { 0x300f, 0x73c0 },
+        { 0x3010, 0x4249 },
+        { 0x3011, 0x0c00 },
+        { 0x3012, 0x0225 },
+        { 0x3013, 0x1f01 },
+        { 0x3014, 0x0225 },
+        { 0x3015, 0x1e01 },
+        { 0x3016, 0x0225 },
+        { 0x3017, 0xfa00 },
+        { 0x3018, 0x0000 },
+        { 0x3019, 0xf000 },
+        { 0x301a, 0x0000 },
+        { 0x301b, 0xf000 },
+        { 0x301c, 0x0000 },
+        { 0x301d, 0xf000 },
+        { 0x301e, 0x0000 },
+        { 0x301f, 0xf000 },
+        { 0x3020, 0x0000 },
+        { 0x3021, 0xf000 },
+        { 0x3022, 0x0000 },
+        { 0x3023, 0xf000 },
+        { 0x3024, 0x0000 },
+        { 0x3025, 0xf000 },
+        { 0x3026, 0x0000 },
+        { 0x3027, 0xf000 },
+        { 0x3028, 0x0000 },
+        { 0x3029, 0xf000 },
+        { 0x302a, 0x0000 },
+        { 0x302b, 0xf000 },
+        { 0x302c, 0x0000 },
+        { 0x302d, 0xf000 },
+        { 0x302e, 0x0000 },
+        { 0x302f, 0xf000 },
+        { 0x3030, 0x0225 },
+        { 0x3031, 0x1a01 },
+        { 0x3032, 0x0225 },
+        { 0x3033, 0x1e00 },
+        { 0x3034, 0x0225 },
+        { 0x3035, 0x1f00 },
+        { 0x3036, 0x6225 },
+        { 0x3037, 0xf800 },
+        { 0x3038, 0x0000 },
+        { 0x3039, 0xf000 },
+        { 0x303a, 0x0000 },
+        { 0x303b, 0xf000 },
+        { 0x303c, 0x0000 },
+        { 0x303d, 0xf000 },
+        { 0x303e, 0x0000 },
+        { 0x303f, 0xf000 },
+        { 0x3040, 0x2226 },
+        { 0x3041, 0x3a03 },
+        { 0x3042, 0x0226 },
+        { 0x3043, 0x0801 },
+        { 0x3044, 0x6249 },
+        { 0x3045, 0x0c06 },
+        { 0x3046, 0x0226 },
+        { 0x3047, 0x5901 },
+        { 0x3048, 0xe249 },
+        { 0x3049, 0x030d },
+        { 0x304a, 0x0249 },
+        { 0x304b, 0x2c01 },
+        { 0x304c, 0xe249 },
+        { 0x304d, 0x4342 },
+        { 0x304e, 0xe249 },
+        { 0x304f, 0x73c0 },
+        { 0x3050, 0x4249 },
+        { 0x3051, 0x0c00 },
+        { 0x3052, 0x0226 },
+        { 0x3053, 0x1f01 },
+        { 0x3054, 0x0226 },
+        { 0x3055, 0x1e01 },
+        { 0x3056, 0x0226 },
+        { 0x3057, 0xfa00 },
+        { 0x3058, 0x0000 },
+        { 0x3059, 0xf000 },
+        { 0x305a, 0x0000 },
+        { 0x305b, 0xf000 },
+        { 0x305c, 0x0000 },
+        { 0x305d, 0xf000 },
+        { 0x305e, 0x0000 },
+        { 0x305f, 0xf000 },
+        { 0x3060, 0x0000 },
+        { 0x3061, 0xf000 },
+        { 0x3062, 0x0000 },
+        { 0x3063, 0xf000 },
+        { 0x3064, 0x0000 },
+        { 0x3065, 0xf000 },
+        { 0x3066, 0x0000 },
+        { 0x3067, 0xf000 },
+        { 0x3068, 0x0000 },
+        { 0x3069, 0xf000 },
+        { 0x306a, 0x0000 },
+        { 0x306b, 0xf000 },
+        { 0x306c, 0x0000 },
+        { 0x306d, 0xf000 },
+        { 0x306e, 0x0000 },
+        { 0x306f, 0xf000 },
+        { 0x3070, 0x0226 },
+        { 0x3071, 0x1a01 },
+        { 0x3072, 0x0226 },
+        { 0x3073, 0x1e00 },
+        { 0x3074, 0x0226 },
+        { 0x3075, 0x1f00 },
+        { 0x3076, 0x6226 },
+        { 0x3077, 0xf800 },
+        { 0x3078, 0x0000 },
+        { 0x3079, 0xf000 },
+        { 0x307a, 0x0000 },
+        { 0x307b, 0xf000 },
+        { 0x307c, 0x0000 },
+        { 0x307d, 0xf000 },
+        { 0x307e, 0x0000 },
+        { 0x307f, 0xf000 },
+        { 0x3080, 0x2227 },
+        { 0x3081, 0x3a03 },
+        { 0x3082, 0x0227 },
+        { 0x3083, 0x0801 },
+        { 0x3084, 0x6255 },
+        { 0x3085, 0x0c04 },
+        { 0x3086, 0x0227 },
+        { 0x3087, 0x5901 },
+        { 0x3088, 0xe255 },
+        { 0x3089, 0x030d },
+        { 0x308a, 0x0255 },
+        { 0x308b, 0x2c01 },
+        { 0x308c, 0xe255 },
+        { 0x308d, 0x4342 },
+        { 0x308e, 0xe255 },
+        { 0x308f, 0x73c0 },
+        { 0x3090, 0x4255 },
+        { 0x3091, 0x0c00 },
+        { 0x3092, 0x0227 },
+        { 0x3093, 0x1f01 },
+        { 0x3094, 0x0227 },
+        { 0x3095, 0x1e01 },
+        { 0x3096, 0x0227 },
+        { 0x3097, 0xfa00 },
+        { 0x3098, 0x0000 },
+        { 0x3099, 0xf000 },
+        { 0x309a, 0x0000 },
+        { 0x309b, 0xf000 },
+        { 0x309c, 0x0000 },
+        { 0x309d, 0xf000 },
+        { 0x309e, 0x0000 },
+        { 0x309f, 0xf000 },
+        { 0x30a0, 0x0000 },
+        { 0x30a1, 0xf000 },
+        { 0x30a2, 0x0000 },
+        { 0x30a3, 0xf000 },
+        { 0x30a4, 0x0000 },
+        { 0x30a5, 0xf000 },
+        { 0x30a6, 0x0000 },
+        { 0x30a7, 0xf000 },
+        { 0x30a8, 0x0000 },
+        { 0x30a9, 0xf000 },
+        { 0x30aa, 0x0000 },
+        { 0x30ab, 0xf000 },
+        { 0x30ac, 0x0000 },
+        { 0x30ad, 0xf000 },
+        { 0x30ae, 0x0000 },
+        { 0x30af, 0xf000 },
+        { 0x30b0, 0x0227 },
+        { 0x30b1, 0x1a01 },
+        { 0x30b2, 0x0227 },
+        { 0x30b3, 0x1e00 },
+        { 0x30b4, 0x0227 },
+        { 0x30b5, 0x1f00 },
+        { 0x30b6, 0x6227 },
+        { 0x30b7, 0xf800 },
+        { 0x30b8, 0x0000 },
+        { 0x30b9, 0xf000 },
+        { 0x30ba, 0x0000 },
+        { 0x30bb, 0xf000 },
+        { 0x30bc, 0x0000 },
+        { 0x30bd, 0xf000 },
+        { 0x30be, 0x0000 },
+        { 0x30bf, 0xf000 },
+        { 0x30c0, 0x2228 },
+        { 0x30c1, 0x3a03 },
+        { 0x30c2, 0x0228 },
+        { 0x30c3, 0x0801 },
+        { 0x30c4, 0x6255 },
+        { 0x30c5, 0x0c06 },
+        { 0x30c6, 0x0228 },
+        { 0x30c7, 0x5901 },
+        { 0x30c8, 0xe255 },
+        { 0x30c9, 0x030d },
+        { 0x30ca, 0x0255 },
+        { 0x30cb, 0x2c01 },
+        { 0x30cc, 0xe255 },
+        { 0x30cd, 0x4342 },
+        { 0x30ce, 0xe255 },
+        { 0x30cf, 0x73c0 },
+        { 0x30d0, 0x4255 },
+        { 0x30d1, 0x0c00 },
+        { 0x30d2, 0x0228 },
+        { 0x30d3, 0x1f01 },
+        { 0x30d4, 0x0228 },
+        { 0x30d5, 0x1e01 },
+        { 0x30d6, 0x0228 },
+        { 0x30d7, 0xfa00 },
+        { 0x30d8, 0x0000 },
+        { 0x30d9, 0xf000 },
+        { 0x30da, 0x0000 },
+        { 0x30db, 0xf000 },
+        { 0x30dc, 0x0000 },
+        { 0x30dd, 0xf000 },
+        { 0x30de, 0x0000 },
+        { 0x30df, 0xf000 },
+        { 0x30e0, 0x0000 },
+        { 0x30e1, 0xf000 },
+        { 0x30e2, 0x0000 },
+        { 0x30e3, 0xf000 },
+        { 0x30e4, 0x0000 },
+        { 0x30e5, 0xf000 },
+        { 0x30e6, 0x0000 },
+        { 0x30e7, 0xf000 },
+        { 0x30e8, 0x0000 },
+        { 0x30e9, 0xf000 },
+        { 0x30ea, 0x0000 },
+        { 0x30eb, 0xf000 },
+        { 0x30ec, 0x0000 },
+        { 0x30ed, 0xf000 },
+        { 0x30ee, 0x0000 },
+        { 0x30ef, 0xf000 },
+        { 0x30f0, 0x0228 },
+        { 0x30f1, 0x1a01 },
+        { 0x30f2, 0x0228 },
+        { 0x30f3, 0x1e00 },
+        { 0x30f4, 0x0228 },
+        { 0x30f5, 0x1f00 },
+        { 0x30f6, 0x6228 },
+        { 0x30f7, 0xf800 },
+        { 0x30f8, 0x0000 },
+        { 0x30f9, 0xf000 },
+        { 0x30fa, 0x0000 },
+        { 0x30fb, 0xf000 },
+        { 0x30fc, 0x0000 },
+        { 0x30fd, 0xf000 },
+        { 0x30fe, 0x0000 },
+        { 0x30ff, 0xf000 },
+        { 0x3100, 0x222b },
+        { 0x3101, 0x3a03 },
+        { 0x3102, 0x222b },
+        { 0x3103, 0x5803 },
+        { 0x3104, 0xe26f },
+        { 0x3105, 0x030d },
+        { 0x3106, 0x626f },
+        { 0x3107, 0x2c01 },
+        { 0x3108, 0xe26f },
+        { 0x3109, 0x4342 },
+        { 0x310a, 0xe26f },
+        { 0x310b, 0x73c0 },
+        { 0x310c, 0x026f },
+        { 0x310d, 0x0c00 },
+        { 0x310e, 0x022b },
+        { 0x310f, 0x1f01 },
+        { 0x3110, 0x022b },
+        { 0x3111, 0x1e01 },
+        { 0x3112, 0x022b },
+        { 0x3113, 0xfa00 },
+        { 0x3114, 0x0000 },
+        { 0x3115, 0xf000 },
+        { 0x3116, 0x0000 },
+        { 0x3117, 0xf000 },
+        { 0x3118, 0x0000 },
+        { 0x3119, 0xf000 },
+        { 0x311a, 0x0000 },
+        { 0x311b, 0xf000 },
+        { 0x311c, 0x0000 },
+        { 0x311d, 0xf000 },
+        { 0x311e, 0x0000 },
+        { 0x311f, 0xf000 },
+        { 0x3120, 0x022b },
+        { 0x3121, 0x0a01 },
+        { 0x3122, 0x022b },
+        { 0x3123, 0x1e00 },
+        { 0x3124, 0x022b },
+        { 0x3125, 0x1f00 },
+        { 0x3126, 0x622b },
+        { 0x3127, 0xf800 },
+        { 0x3128, 0x0000 },
+        { 0x3129, 0xf000 },
+        { 0x312a, 0x0000 },
+        { 0x312b, 0xf000 },
+        { 0x312c, 0x0000 },
+        { 0x312d, 0xf000 },
+        { 0x312e, 0x0000 },
+        { 0x312f, 0xf000 },
+        { 0x3130, 0x0000 },
+        { 0x3131, 0xf000 },
+        { 0x3132, 0x0000 },
+        { 0x3133, 0xf000 },
+        { 0x3134, 0x0000 },
+        { 0x3135, 0xf000 },
+        { 0x3136, 0x0000 },
+        { 0x3137, 0xf000 },
+        { 0x3138, 0x0000 },
+        { 0x3139, 0xf000 },
+        { 0x313a, 0x0000 },
+        { 0x313b, 0xf000 },
+        { 0x313c, 0x0000 },
+        { 0x313d, 0xf000 },
+        { 0x313e, 0x0000 },
+        { 0x313f, 0xf000 },
+        { 0x3140, 0x0000 },
+        { 0x3141, 0xf000 },
+        { 0x3142, 0x0000 },
+        { 0x3143, 0xf000 },
+        { 0x3144, 0x0000 },
+        { 0x3145, 0xf000 },
+        { 0x3146, 0x0000 },
+        { 0x3147, 0xf000 },
+        { 0x3148, 0x0000 },
+        { 0x3149, 0xf000 },
+        { 0x314a, 0x0000 },
+        { 0x314b, 0xf000 },
+        { 0x314c, 0x0000 },
+        { 0x314d, 0xf000 },
+        { 0x314e, 0x0000 },
+        { 0x314f, 0xf000 },
+        { 0x3150, 0x0000 },
+        { 0x3151, 0xf000 },
+        { 0x3152, 0x0000 },
+        { 0x3153, 0xf000 },
+        { 0x3154, 0x0000 },
+        { 0x3155, 0xf000 },
+        { 0x3156, 0x0000 },
+        { 0x3157, 0xf000 },
+        { 0x3158, 0x0000 },
+        { 0x3159, 0xf000 },
+        { 0x315a, 0x0000 },
+        { 0x315b, 0xf000 },
+        { 0x315c, 0x0000 },
+        { 0x315d, 0xf000 },
+        { 0x315e, 0x0000 },
+        { 0x315f, 0xf000 },
+        { 0x3160, 0x0000 },
+        { 0x3161, 0xf000 },
+        { 0x3162, 0x0000 },
+        { 0x3163, 0xf000 },
+        { 0x3164, 0x0000 },
+        { 0x3165, 0xf000 },
+        { 0x3166, 0x0000 },
+        { 0x3167, 0xf000 },
+        { 0x3168, 0x0000 },
+        { 0x3169, 0xf000 },
+        { 0x316a, 0x0000 },
+        { 0x316b, 0xf000 },
+        { 0x316c, 0x0000 },
+        { 0x316d, 0xf000 },
+        { 0x316e, 0x0000 },
+        { 0x316f, 0xf000 },
+        { 0x3170, 0x0000 },
+        { 0x3171, 0xf000 },
+        { 0x3172, 0x0000 },
+        { 0x3173, 0xf000 },
+        { 0x3174, 0x0000 },
+        { 0x3175, 0xf000 },
+        { 0x3176, 0x0000 },
+        { 0x3177, 0xf000 },
+        { 0x3178, 0x0000 },
+        { 0x3179, 0xf000 },
+        { 0x317a, 0x0000 },
+        { 0x317b, 0xf000 },
+        { 0x317c, 0x0000 },
+        { 0x317d, 0xf000 },
+        { 0x317e, 0x0000 },
+        { 0x317f, 0xf000 },
+        { 0x3180, 0x2001 },
+        { 0x3181, 0xf101 },
+        { 0x3182, 0x0000 },
+        { 0x3183, 0xf000 },
+        { 0x3184, 0x0000 },
+        { 0x3185, 0xf000 },
+        { 0x3186, 0x0000 },
+        { 0x3187, 0xf000 },
+        { 0x3188, 0x0000 },
+        { 0x3189, 0xf000 },
+        { 0x318a, 0x0000 },
+        { 0x318b, 0xf000 },
+        { 0x318c, 0x0000 },
+        { 0x318d, 0xf000 },
+        { 0x318e, 0x0000 },
+        { 0x318f, 0xf000 },
+        { 0x3190, 0x0000 },
+        { 0x3191, 0xf000 },
+        { 0x3192, 0x0000 },
+        { 0x3193, 0xf000 },
+        { 0x3194, 0x0000 },
+        { 0x3195, 0xf000 },
+        { 0x3196, 0x0000 },
+        { 0x3197, 0xf000 },
+        { 0x3198, 0x0000 },
+        { 0x3199, 0xf000 },
+        { 0x319a, 0x0000 },
+        { 0x319b, 0xf000 },
+        { 0x319c, 0x0000 },
+        { 0x319d, 0xf000 },
+        { 0x319e, 0x0000 },
+        { 0x319f, 0xf000 },
+        { 0x31a0, 0x0000 },
+        { 0x31a1, 0xf000 },
+        { 0x31a2, 0x0000 },
+        { 0x31a3, 0xf000 },
+        { 0x31a4, 0x0000 },
+        { 0x31a5, 0xf000 },
+        { 0x31a6, 0x0000 },
+        { 0x31a7, 0xf000 },
+        { 0x31a8, 0x0000 },
+        { 0x31a9, 0xf000 },
+        { 0x31aa, 0x0000 },
+        { 0x31ab, 0xf000 },
+        { 0x31ac, 0x0000 },
+        { 0x31ad, 0xf000 },
+        { 0x31ae, 0x0000 },
+        { 0x31af, 0xf000 },
+        { 0x31b0, 0x0000 },
+        { 0x31b1, 0xf000 },
+        { 0x31b2, 0x0000 },
+        { 0x31b3, 0xf000 },
+        { 0x31b4, 0x0000 },
+        { 0x31b5, 0xf000 },
+        { 0x31b6, 0x0000 },
+        { 0x31b7, 0xf000 },
+        { 0x31b8, 0x0000 },
+        { 0x31b9, 0xf000 },
+        { 0x31ba, 0x0000 },
+        { 0x31bb, 0xf000 },
+        { 0x31bc, 0x0000 },
+        { 0x31bd, 0xf000 },
+        { 0x31be, 0x0000 },
+        { 0x31bf, 0xf000 },
+        { 0x31c0, 0x0000 },
+        { 0x31c1, 0xf000 },
+        { 0x31c2, 0x0000 },
+        { 0x31c3, 0xf000 },
+        { 0x31c4, 0x0000 },
+        { 0x31c5, 0xf000 },
+        { 0x31c6, 0x0000 },
+        { 0x31c7, 0xf000 },
+        { 0x31c8, 0x0000 },
+        { 0x31c9, 0xf000 },
+        { 0x31ca, 0x0000 },
+        { 0x31cb, 0xf000 },
+        { 0x31cc, 0x0000 },
+        { 0x31cd, 0xf000 },
+        { 0x31ce, 0x0000 },
+        { 0x31cf, 0xf000 },
+        { 0x31d0, 0x0000 },
+        { 0x31d1, 0xf000 },
+        { 0x31d2, 0x0000 },
+        { 0x31d3, 0xf000 },
+        { 0x31d4, 0x0000 },
+        { 0x31d5, 0xf000 },
+        { 0x31d6, 0x0000 },
+        { 0x31d7, 0xf000 },
+        { 0x31d8, 0x0000 },
+        { 0x31d9, 0xf000 },
+        { 0x31da, 0x0000 },
+        { 0x31db, 0xf000 },
+        { 0x31dc, 0x0000 },
+        { 0x31dd, 0xf000 },
+        { 0x31de, 0x0000 },
+        { 0x31df, 0xf000 },
+        { 0x31e0, 0x0000 },
+        { 0x31e1, 0xf000 },
+        { 0x31e2, 0x0000 },
+        { 0x31e3, 0xf000 },
+        { 0x31e4, 0x0000 },
+        { 0x31e5, 0xf000 },
+        { 0x31e6, 0x0000 },
+        { 0x31e7, 0xf000 },
+        { 0x31e8, 0x0000 },
+        { 0x31e9, 0xf000 },
+        { 0x31ea, 0x0000 },
+        { 0x31eb, 0xf000 },
+        { 0x31ec, 0x0000 },
+        { 0x31ed, 0xf000 },
+        { 0x31ee, 0x0000 },
+        { 0x31ef, 0xf000 },
+        { 0x31f0, 0x0000 },
+        { 0x31f1, 0xf000 },
+        { 0x31f2, 0x0000 },
+        { 0x31f3, 0xf000 },
+        { 0x31f4, 0x0000 },
+        { 0x31f5, 0xf000 },
+        { 0x31f6, 0x0000 },
+        { 0x31f7, 0xf000 },
+        { 0x31f8, 0x0000 },
+        { 0x31f9, 0xf000 },
+        { 0x31fa, 0x0000 },
+        { 0x31fb, 0xf000 },
+        { 0x31fc, 0x0000 },
+        { 0x31fd, 0xf000 },
+        { 0x31fe, 0x0000 },
+        { 0x31ff, 0xf000 },
+        { 0x024d, 0xff50 },
+        { 0x0252, 0xff50 },
+        { 0x0259, 0x0112 },
+        { 0x025e, 0x0112 },
+};
+
+static int wm5102_sysclk_ev(struct snd_soc_dapm_widget *w,
+                            struct snd_kcontrol *kcontrol, int event)
+{
+        struct snd_soc_codec *codec = w->codec;
+        struct arizona *arizona = dev_get_drvdata(codec->dev);
+        struct regmap *regmap = codec->control_data;
+        const struct reg_default *patch = NULL;
+        int i, patch_size;
+
+        switch (arizona->rev) {
+        case 0:
+                patch = wm5102_sysclk_reva_patch;
+                patch_size = ARRAY_SIZE(wm5102_sysclk_reva_patch);
+                break;
+        }
+
+        switch (event) {
+        case SND_SOC_DAPM_POST_PMU:
+                if (patch)
+                        for (i = 0; i < patch_size; i++)
+                                regmap_write(regmap, patch[i].reg,
+                                             patch[i].def);
+                break;
+
+        default:
+                break;
+        }
+
+        return 0;
+}
+
 static const struct snd_kcontrol_new wm5102_snd_controls[] = {
 SOC_SINGLE("IN1 High Performance Switch", ARIZONA_IN1L_CONTROL,
            ARIZONA_IN1_OSR_SHIFT, 1, 0),
@@ -297,7 +847,7 @@ static const struct snd_kcontrol_new wm5102_aec_loopback_mux =
 
 static const struct snd_soc_dapm_widget wm5102_dapm_widgets[] = {
 SND_SOC_DAPM_SUPPLY("SYSCLK", ARIZONA_SYSTEM_CLOCK_1, ARIZONA_SYSCLK_ENA_SHIFT,
-                    0, NULL, 0),
+                    0, wm5102_sysclk_ev, SND_SOC_DAPM_POST_PMU),
 SND_SOC_DAPM_SUPPLY("ASYNCCLK", ARIZONA_ASYNC_CLOCK_1,
                     ARIZONA_ASYNC_CLK_ENA_SHIFT, 0, NULL, 0),
 SND_SOC_DAPM_SUPPLY("OPCLK", ARIZONA_OUTPUT_SYSTEM_CLOCK,
diff --git a/sound/soc/codecs/wm8978.c b/sound/soc/codecs/wm8978.c
index 5421fd9fbcb5..4c0a8e496131 100644
--- a/sound/soc/codecs/wm8978.c
+++ b/sound/soc/codecs/wm8978.c
@@ -782,7 +782,7 @@ static int wm8978_hw_params(struct snd_pcm_substream *substream,
                 wm8978->mclk_idx = -1;
                 f_sel = wm8978->f_mclk;
         } else {
-                if (!wm8978->f_pllout) {
+                if (!wm8978->f_opclk) {
                         /* We only enter here, if OPCLK is not used */
                         int ret = wm8978_configure_pll(codec);
                         if (ret < 0)
diff --git a/sound/soc/codecs/wm8994.c b/sound/soc/codecs/wm8994.c
index 3fddc7ad1127..b2b2b37131bd 100644
--- a/sound/soc/codecs/wm8994.c
+++ b/sound/soc/codecs/wm8994.c
@@ -3722,7 +3722,7 @@ static irqreturn_t wm8958_mic_irq(int irq, void *data)
         } while (count--);
 
         if (count == 0)
-                dev_warn(codec->dev, "No impedence range reported for jack\n");
+                dev_warn(codec->dev, "No impedance range reported for jack\n");
 
 #ifndef CONFIG_SND_SOC_WM8994_MODULE
         trace_snd_soc_jack_irq(dev_name(codec->dev));
diff --git a/sound/soc/mxs/mxs-saif.c b/sound/soc/mxs/mxs-saif.c
index aa037b292f3d..c294fbb523fc 100644
--- a/sound/soc/mxs/mxs-saif.c
+++ b/sound/soc/mxs/mxs-saif.c
@@ -523,16 +523,24 @@ static int mxs_saif_trigger(struct snd_pcm_substream *substream, int cmd,
 
                 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
                         /*
-                         * write a data to saif data register to trigger
-                         * the transfer
+                         * write data to saif data register to trigger
+                         * the transfer.
+                         * For 24-bit format the 32-bit FIFO register stores
+                         * only one channel, so we need to write twice.
+                         * This is also safe for the other non 24-bit formats.
                          */
                         __raw_writel(0, saif->base + SAIF_DATA);
+                        __raw_writel(0, saif->base + SAIF_DATA);
                 } else {
                         /*
-                         * read a data from saif data register to trigger
-                         * the receive
+                         * read data from saif data register to trigger
+                         * the receive.
+                         * For 24-bit format the 32-bit FIFO register stores
+                         * only one channel, so we need to read twice.
+                         * This is also safe for the other non 24-bit formats.
                          */
                         __raw_readl(saif->base + SAIF_DATA);
+                        __raw_readl(saif->base + SAIF_DATA);
                 }
 
                 master_saif->ongoing = 1;
@@ -812,3 +820,4 @@ module_platform_driver(mxs_saif_driver);
 MODULE_AUTHOR("Freescale Semiconductor, Inc.");
 MODULE_DESCRIPTION("MXS ASoC SAIF driver");
 MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:mxs-saif");
diff --git a/sound/soc/samsung/Kconfig b/sound/soc/samsung/Kconfig
index e7b83179aca2..3c7c3a59ed39 100644
--- a/sound/soc/samsung/Kconfig
+++ b/sound/soc/samsung/Kconfig
@@ -207,6 +207,8 @@ config SND_SOC_BELLS
         select SND_SOC_WM5102
         select SND_SOC_WM5110
         select SND_SOC_WM9081
+        select SND_SOC_WM0010
+        select SND_SOC_WM1250_EV1
 
 config SND_SOC_LOWLAND
         tristate "Audio support for Wolfson Lowland"
diff --git a/sound/soc/samsung/bells.c b/sound/soc/samsung/bells.c
index b0d46d63d55e..b56b9a3c6169 100644
--- a/sound/soc/samsung/bells.c
+++ b/sound/soc/samsung/bells.c
@@ -247,7 +247,7 @@ static struct snd_soc_dai_link bells_dai_wm5110[] = {
         {
                 .name = "Sub",
                 .stream_name = "Sub",
-                .cpu_dai_name = "wm5110-aif3",
+                .cpu_dai_name = "wm5102-aif3",
                 .codec_dai_name = "wm9081-hifi",
                 .codec_name = "wm9081.1-006c",
                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index d1198627fc40..10d21be383f6 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -2786,8 +2786,9 @@ int snd_soc_put_volsw_sx(struct snd_kcontrol *kcontrol,
         val = (ucontrol->value.integer.value[0] + min) & mask;
         val = val << shift;
 
-        if (snd_soc_update_bits_locked(codec, reg, val_mask, val))
-                        return err;
+        err = snd_soc_update_bits_locked(codec, reg, val_mask, val);
+        if (err < 0)
+                return err;
 
         if (snd_soc_volsw_is_stereo(mc)) {
                 val_mask = mask << rshift;
diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index d0a4be38dc0f..6e35bcae02df 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -3745,7 +3745,7 @@ void snd_soc_dapm_shutdown(struct snd_soc_card *card)
 {
         struct snd_soc_codec *codec;
 
-        list_for_each_entry(codec, &card->codec_dev_list, list) {
+        list_for_each_entry(codec, &card->codec_dev_list, card_list) {
                 soc_dapm_shutdown_codec(&codec->dapm);
                 if (codec->dapm.bias_level == SND_SOC_BIAS_STANDBY)
                         snd_soc_dapm_set_bias_level(&codec->dapm,
diff --git a/sound/usb/card.c b/sound/usb/card.c
index 282f0fc9fed1..dbf7999d18b4 100644
--- a/sound/usb/card.c
+++ b/sound/usb/card.c
@@ -559,9 +559,11 @@ static void snd_usb_audio_disconnect(struct usb_device *dev,
                 return;
 
         card = chip->card;
-        mutex_lock(&register_mutex);
         down_write(&chip->shutdown_rwsem);
         chip->shutdown = 1;
+        up_write(&chip->shutdown_rwsem);
+
+        mutex_lock(&register_mutex);
         chip->num_interfaces--;
         if (chip->num_interfaces <= 0) {
                 snd_card_disconnect(card);
@@ -582,11 +584,9 @@ static void snd_usb_audio_disconnect(struct usb_device *dev,
                         snd_usb_mixer_disconnect(p);
                 }
                 usb_chip[chip->index] = NULL;
-                up_write(&chip->shutdown_rwsem);
                 mutex_unlock(&register_mutex);
                 snd_card_free_when_closed(card);
         } else {
-                up_write(&chip->shutdown_rwsem);
                 mutex_unlock(&register_mutex);
         }
 }
diff --git a/sound/usb/endpoint.c b/sound/usb/endpoint.c
index 7f78c6d782b0..34de6f2faf61 100644
--- a/sound/usb/endpoint.c
+++ b/sound/usb/endpoint.c
@@ -35,6 +35,7 @@
 
 #define EP_FLAG_ACTIVATED       0
 #define EP_FLAG_RUNNING         1
+#define EP_FLAG_STOPPING        2
 
 /*
  * snd_usb_endpoint is a model that abstracts everything related to an
@@ -502,10 +503,20 @@ static int wait_clear_urbs(struct snd_usb_endpoint *ep)
         if (alive)
                 snd_printk(KERN_ERR "timeout: still %d active urbs on EP #%x\n",
                                         alive, ep->ep_num);
+        clear_bit(EP_FLAG_STOPPING, &ep->flags);
 
         return 0;
 }
 
+/* sync the pending stop operation;
+ * this function itself doesn't trigger the stop operation
+ */
+void snd_usb_endpoint_sync_pending_stop(struct snd_usb_endpoint *ep)
+{
+        if (ep && test_bit(EP_FLAG_STOPPING, &ep->flags))
+                wait_clear_urbs(ep);
+}
+
 /*
  * unlink active urbs.
  */
@@ -918,6 +929,8 @@ void snd_usb_endpoint_stop(struct snd_usb_endpoint *ep,
 
                 if (wait)
                         wait_clear_urbs(ep);
+                else
+                        set_bit(EP_FLAG_STOPPING, &ep->flags);
         }
 }
 
diff --git a/sound/usb/endpoint.h b/sound/usb/endpoint.h
index 6376ccf10fd4..3d4c9705041f 100644
--- a/sound/usb/endpoint.h
+++ b/sound/usb/endpoint.h
@@ -19,6 +19,7 @@ int snd_usb_endpoint_set_params(struct snd_usb_endpoint *ep,
 int  snd_usb_endpoint_start(struct snd_usb_endpoint *ep, int can_sleep);
 void snd_usb_endpoint_stop(struct snd_usb_endpoint *ep,
                            int force, int can_sleep, int wait);
+void snd_usb_endpoint_sync_pending_stop(struct snd_usb_endpoint *ep);
 int  snd_usb_endpoint_activate(struct snd_usb_endpoint *ep);
 int  snd_usb_endpoint_deactivate(struct snd_usb_endpoint *ep);
 void snd_usb_endpoint_free(struct list_head *head);
diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c
index 37428f74dbb6..5c12a3fe8c3e 100644
--- a/sound/usb/pcm.c
+++ b/sound/usb/pcm.c
@@ -568,6 +568,9 @@ static int snd_usb_pcm_prepare(struct snd_pcm_substream *substream)
                 goto unlock;
         }
 
+        snd_usb_endpoint_sync_pending_stop(subs->sync_endpoint);
+        snd_usb_endpoint_sync_pending_stop(subs->data_endpoint);
+
         ret = set_format(subs, subs->cur_audiofmt);
         if (ret < 0)
                 goto unlock;
diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c
index 2655ae9a3ad8..ea095abbe97e 100644
--- a/tools/power/x86/turbostat/turbostat.c
+++ b/tools/power/x86/turbostat/turbostat.c
@@ -206,8 +206,10 @@ int get_msr(int cpu, off_t offset, unsigned long long *msr)
         retval = pread(fd, msr, sizeof *msr, offset);
         close(fd);
 
-        if (retval != sizeof *msr)
+        if (retval != sizeof *msr) {
+                fprintf(stderr, "%s offset 0x%zx read failed\n", pathname, offset);
                 return -1;
+        }
 
         return 0;
 }
@@ -1101,7 +1103,9 @@ void turbostat_loop()
 
 restart:
         retval = for_all_cpus(get_counters, EVEN_COUNTERS);
-        if (retval) {
+        if (retval < -1) {
+                exit(retval);
+        } else if (retval == -1) {
                 re_initialize();
                 goto restart;
         }
@@ -1114,7 +1118,9 @@ restart:
                 }
                 sleep(interval_sec);
                 retval = for_all_cpus(get_counters, ODD_COUNTERS);
-                if (retval) {
+                if (retval < -1) {
+                        exit(retval);
+                } else if (retval == -1) {
                         re_initialize();
                         goto restart;
                 }
@@ -1126,7 +1132,9 @@ restart:
                 flush_stdout();
                 sleep(interval_sec);
                 retval = for_all_cpus(get_counters, EVEN_COUNTERS);
-                if (retval) {
+                if (retval < -1) {
+                        exit(retval);
+                } else if (retval == -1) {
                         re_initialize();
                         goto restart;
                 }
@@ -1545,8 +1553,11 @@ void turbostat_init()
 int fork_it(char **argv)
 {
         pid_t child_pid;
+        int status;
 
-        for_all_cpus(get_counters, EVEN_COUNTERS);
+        status = for_all_cpus(get_counters, EVEN_COUNTERS);
+        if (status)
+                exit(status);
         /* clear affinity side-effect of get_counters() */
         sched_setaffinity(0, cpu_present_setsize, cpu_present_set);
         gettimeofday(&tv_even, (struct timezone *)NULL);
@@ -1556,7 +1567,6 @@ int fork_it(char **argv)
                 /* child */
                 execvp(argv[0], argv);
         } else {
-                int status;
 
                 /* parent */
                 if (child_pid == -1) {
@@ -1568,7 +1578,7 @@ int fork_it(char **argv)
                 signal(SIGQUIT, SIG_IGN);
                 if (waitpid(child_pid, &status, 0) == -1) {
                         perror("wait");
-                        exit(1);
+                        exit(status);
                 }
         }
         /*
@@ -1585,7 +1595,7 @@ int fork_it(char **argv)
 
         fprintf(stderr, "%.6f sec\n", tv_delta.tv_sec + tv_delta.tv_usec/1000000.0);
 
-        return 0;
+        return status;
 }
 
 void cmdline(int argc, char **argv)
@@ -1594,7 +1604,7 @@ void cmdline(int argc, char **argv)
 
         progname = argv[0];
 
-        while ((opt = getopt(argc, argv, "+pPSvisc:sC:m:M:")) != -1) {
+        while ((opt = getopt(argc, argv, "+pPSvi:sc:sC:m:M:")) != -1) {
                 switch (opt) {
                 case 'p':
                         show_core_only++;
diff --git a/tools/testing/selftests/Makefile b/tools/testing/selftests/Makefile
index 43480149119e..85baf11e2acd 100644
--- a/tools/testing/selftests/Makefile
+++ b/tools/testing/selftests/Makefile
@@ -1,4 +1,4 @@
-TARGETS = breakpoints kcmp mqueue vm cpu-hotplug memory-hotplug epoll
+TARGETS = breakpoints kcmp mqueue vm cpu-hotplug memory-hotplug
 
 all:
         for TARGET in $(TARGETS); do \
diff --git a/tools/testing/selftests/epoll/Makefile b/tools/testing/selftests/epoll/Makefile
deleted file mode 100644
index 19806ed62f50..000000000000
--- a/tools/testing/selftests/epoll/Makefile
+++ /dev/null
@@ -1,11 +0,0 @@
-# Makefile for epoll selftests
-
-all: test_epoll
-%: %.c
-        gcc -pthread -g -o $@ $^
-
-run_tests: all
-        ./test_epoll
-
-clean:
-        $(RM) test_epoll
diff --git a/tools/testing/selftests/epoll/test_epoll.c b/tools/testing/selftests/epoll/test_epoll.c
deleted file mode 100644
index f7525392ce84..000000000000
--- a/tools/testing/selftests/epoll/test_epoll.c
+++ /dev/null
@@ -1,344 +0,0 @@
-/*
- *  tools/testing/selftests/epoll/test_epoll.c
- *
- *  Copyright 2012 Adobe Systems Incorporated
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  Paton J. Lewis <palewis@adobe.com>
- *
- */
-
-#include <errno.h>
-#include <fcntl.h>
-#include <pthread.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <sys/epoll.h>
-#include <sys/socket.h>
-
-/*
- * A pointer to an epoll_item_private structure will be stored in the epoll
- * item's event structure so that we can get access to the epoll_item_private
- * data after calling epoll_wait:
- */
-struct epoll_item_private {
-        int index;  /* Position of this struct within the epoll_items array. */
-        int fd;
-        uint32_t events;
-        pthread_mutex_t mutex;  /* Guards the following variables... */
-        int stop;
-        int status;  /* Stores any error encountered while handling item. */
-        /* The following variable allows us to test whether we have encountered
-           a problem while attempting to cancel and delete the associated
-           event. When the test program exits, 'deleted' should be exactly
-           one. If it is greater than one, then the failed test reflects a real
-           world situation where we would have tried to access the epoll item's
-           private data after deleting it: */
-        int deleted;
-};
-
-struct epoll_item_private *epoll_items;
-
-/*
- * Delete the specified item from the epoll set. In a real-world secneario this
- * is where we would free the associated data structure, but in this testing
- * environment we retain the structure so that we can test for double-deletion:
- */
-void delete_item(int index)
-{
-        __sync_fetch_and_add(&epoll_items[index].deleted, 1);
-}
-
-/*
- * A pointer to a read_thread_data structure will be passed as the argument to
- * each read thread:
- */
-struct read_thread_data {
-        int stop;
-        int status;  /* Indicates any error encountered by the read thread. */
-        int epoll_set;
-};
-
-/*
- * The function executed by the read threads:
- */
-void *read_thread_function(void *function_data)
-{
-        struct read_thread_data *thread_data =
-                (struct read_thread_data *)function_data;
-        struct epoll_event event_data;
-        struct epoll_item_private *item_data;
-        char socket_data;
-
-        /* Handle events until we encounter an error or this thread's 'stop'
-           condition is set: */
-        while (1) {
-                int result = epoll_wait(thread_data->epoll_set,
-                                        &event_data,
-                                        1,      /* Number of desired events */
-                                        1000);  /* Timeout in ms */
-                if (result < 0) {
-                        /* Breakpoints signal all threads. Ignore that while
-                           debugging: */
-                        if (errno == EINTR)
-                                continue;
-                        thread_data->status = errno;
-                        return 0;
-                } else if (thread_data->stop)
-                        return 0;
-                else if (result == 0)  /* Timeout */
-                        continue;
-
-                /* We need the mutex here because checking for the stop
-                   condition and re-enabling the epoll item need to be done
-                   together as one atomic operation when EPOLL_CTL_DISABLE is
-                   available: */
-                item_data = (struct epoll_item_private *)event_data.data.ptr;
-                pthread_mutex_lock(&item_data->mutex);
-
-                /* Remove the item from the epoll set if we want to stop
-                   handling that event: */
-                if (item_data->stop)
-                        delete_item(item_data->index);
-                else {
-                        /* Clear the data that was written to the other end of
-                           our non-blocking socket: */
-                        do {
-                                if (read(item_data->fd, &socket_data, 1) < 1) {
-                                        if ((errno == EAGAIN) ||
-                                            (errno == EWOULDBLOCK))
-                                                break;
-                                        else
-                                                goto error_unlock;
-                                }
-                        } while (item_data->events & EPOLLET);
-
-                        /* The item was one-shot, so re-enable it: */
-                        event_data.events = item_data->events;
-                        if (epoll_ctl(thread_data->epoll_set,
-                                                  EPOLL_CTL_MOD,
-                                                  item_data->fd,
-                                                  &event_data) < 0)
-                                goto error_unlock;
-                }
-
-                pthread_mutex_unlock(&item_data->mutex);
-        }
-
-error_unlock:
-        thread_data->status = item_data->status = errno;
-        pthread_mutex_unlock(&item_data->mutex);
-        return 0;
-}
-
-/*
- * A pointer to a write_thread_data structure will be passed as the argument to
- * the write thread:
- */
-struct write_thread_data {
-        int stop;
-        int status;  /* Indicates any error encountered by the write thread. */
-        int n_fds;
-        int *fds;
-};
-
-/*
- * The function executed by the write thread. It writes a single byte to each
- * socket in turn until the stop condition for this thread is set. If writing to
- * a socket would block (i.e. errno was EAGAIN), we leave that socket alone for
- * the moment and just move on to the next socket in the list. We don't care
- * about the order in which we deliver events to the epoll set. In fact we don't
- * care about the data we're writing to the pipes at all; we just want to
- * trigger epoll events:
- */
-void *write_thread_function(void *function_data)
-{
-        const char data = 'X';
-        int index;
-        struct write_thread_data *thread_data =
-                (struct write_thread_data *)function_data;
-        while (!thread_data->stop)
-                for (index = 0;
-                     !thread_data->stop && (index < thread_data->n_fds);
-                     ++index)
-                        if ((write(thread_data->fds[index], &data, 1) < 1) &&
-                                (errno != EAGAIN) &&
-                                (errno != EWOULDBLOCK)) {
-                                thread_data->status = errno;
-                                return;
-                        }
-}
-
-/*
- * Arguments are currently ignored:
- */
-int main(int argc, char **argv)
-{
-        const int n_read_threads = 100;
-        const int n_epoll_items = 500;
-        int index;
-        int epoll_set = epoll_create1(0);
-        struct write_thread_data write_thread_data = {
-                0, 0, n_epoll_items, malloc(n_epoll_items * sizeof(int))
-        };
-        struct read_thread_data *read_thread_data =
-                malloc(n_read_threads * sizeof(struct read_thread_data));
-        pthread_t *read_threads = malloc(n_read_threads * sizeof(pthread_t));
-        pthread_t write_thread;
-
-        printf("-----------------\n");
-        printf("Runing test_epoll\n");
-        printf("-----------------\n");
-
-        epoll_items = malloc(n_epoll_items * sizeof(struct epoll_item_private));
-
-        if (epoll_set < 0 || epoll_items == 0 || write_thread_data.fds == 0 ||
-                read_thread_data == 0 || read_threads == 0)
-                goto error;
-
-        if (sysconf(_SC_NPROCESSORS_ONLN) < 2) {
-                printf("Error: please run this test on a multi-core system.\n");
-                goto error;
-        }
-
-        /* Create the socket pairs and epoll items: */
-        for (index = 0; index < n_epoll_items; ++index) {
-                int socket_pair[2];
-                struct epoll_event event_data;
-                if (socketpair(AF_UNIX,
-                               SOCK_STREAM | SOCK_NONBLOCK,
-                               0,
-                               socket_pair) < 0)
-                        goto error;
-                write_thread_data.fds[index] = socket_pair[0];
-                epoll_items[index].index = index;
-                epoll_items[index].fd = socket_pair[1];
-                if (pthread_mutex_init(&epoll_items[index].mutex, NULL) != 0)
-                        goto error;
-                /* We always use EPOLLONESHOT because this test is currently
-                   structured to demonstrate the need for EPOLL_CTL_DISABLE,
-                   which only produces useful information in the EPOLLONESHOT
-                   case (without EPOLLONESHOT, calling epoll_ctl with
-                   EPOLL_CTL_DISABLE will never return EBUSY). If support for
-                   testing events without EPOLLONESHOT is desired, it should
-                   probably be implemented in a separate unit test. */
-                epoll_items[index].events = EPOLLIN | EPOLLONESHOT;
-                if (index < n_epoll_items / 2)
-                        epoll_items[index].events |= EPOLLET;
-                epoll_items[index].stop = 0;
-                epoll_items[index].status = 0;
-                epoll_items[index].deleted = 0;
-                event_data.events = epoll_items[index].events;
-                event_data.data.ptr = &epoll_items[index];
-                if (epoll_ctl(epoll_set,
-                              EPOLL_CTL_ADD,
-                              epoll_items[index].fd,
-                              &event_data) < 0)
-                        goto error;
-        }
-
-        /* Create and start the read threads: */
-        for (index = 0; index < n_read_threads; ++index) {
-                read_thread_data[index].stop = 0;
-                read_thread_data[index].status = 0;
-                read_thread_data[index].epoll_set = epoll_set;
-                if (pthread_create(&read_threads[index],
-                                   NULL,
-                                   read_thread_function,
-                                   &read_thread_data[index]) != 0)
-                        goto error;
-        }
-
-        if (pthread_create(&write_thread,
-                           NULL,
-                           write_thread_function,
-                           &write_thread_data) != 0)
-                goto error;
-
-        /* Cancel all event pollers: */
-#ifdef EPOLL_CTL_DISABLE
-        for (index = 0; index < n_epoll_items; ++index) {
-                pthread_mutex_lock(&epoll_items[index].mutex);
-                ++epoll_items[index].stop;
-                if (epoll_ctl(epoll_set,
-                              EPOLL_CTL_DISABLE,
-                              epoll_items[index].fd,
-                              NULL) == 0)
-                        delete_item(index);
-                else if (errno != EBUSY) {
-                        pthread_mutex_unlock(&epoll_items[index].mutex);
-                        goto error;
-                }
-                /* EBUSY means events were being handled; allow the other thread
-                   to delete the item. */
-                pthread_mutex_unlock(&epoll_items[index].mutex);
-        }
-#else
-        for (index = 0; index < n_epoll_items; ++index) {
-                pthread_mutex_lock(&epoll_items[index].mutex);
-                ++epoll_items[index].stop;
-                pthread_mutex_unlock(&epoll_items[index].mutex);
-                /* Wait in case a thread running read_thread_function is
-                   currently executing code between epoll_wait and
-                   pthread_mutex_lock with this item. Note that a longer delay
-                   would make double-deletion less likely (at the expense of
-                   performance), but there is no guarantee that any delay would
-                   ever be sufficient. Note also that we delete all event
-                   pollers at once for testing purposes, but in a real-world
-                   environment we are likely to want to be able to cancel event
-                   pollers at arbitrary times. Therefore we can't improve this
-                   situation by just splitting this loop into two loops
-                   (i.e. signal 'stop' for all items, sleep, and then delete all
-                   items). We also can't fix the problem via EPOLL_CTL_DEL
-                   because that command can't prevent the case where some other
-                   thread is executing read_thread_function within the region
-                   mentioned above: */
-                usleep(1);
-                pthread_mutex_lock(&epoll_items[index].mutex);
-                if (!epoll_items[index].deleted)
-                        delete_item(index);
-                pthread_mutex_unlock(&epoll_items[index].mutex);
-        }
-#endif
-
-        /* Shut down the read threads: */
-        for (index = 0; index < n_read_threads; ++index)
-                __sync_fetch_and_add(&read_thread_data[index].stop, 1);
-        for (index = 0; index < n_read_threads; ++index) {
-                if (pthread_join(read_threads[index], NULL) != 0)
-                        goto error;
-                if (read_thread_data[index].status)
-                        goto error;
-        }
-
-        /* Shut down the write thread: */
-        __sync_fetch_and_add(&write_thread_data.stop, 1);
-        if ((pthread_join(write_thread, NULL) != 0) || write_thread_data.status)
-                goto error;
-
-        /* Check for final error conditions: */
-        for (index = 0; index < n_epoll_items; ++index) {
-                if (epoll_items[index].status != 0)
-                        goto error;
-                if (pthread_mutex_destroy(&epoll_items[index].mutex) < 0)
-                        goto error;
-        }
-        for (index = 0; index < n_epoll_items; ++index)
-                if (epoll_items[index].deleted != 1) {
-                        printf("Error: item data deleted %1d times.\n",
-                                   epoll_items[index].deleted);
-                        goto error;
-                }
-
-        printf("[PASS]\n");
-        return 0;
-
- error:
-        printf("[FAIL]\n");
-        return errno;
-}