170 files changed, 1168 insertions, 827 deletions
diff --git a/Documentation/devicetree/bindings/pinctrl/atmel,at91-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/atmel,at91-pinctrl.txt
index 3a268127b054..bc50899e0c81 100644
--- a/Documentation/devicetree/bindings/pinctrl/atmel,at91-pinctrl.txt
+++ b/Documentation/devicetree/bindings/pinctrl/atmel,at91-pinctrl.txt
@@ -81,7 +81,8 @@ PA31	TXD4
 Required properties for pin configuration node:
 - atmel,pins: 4 integers array, represents a group of pins mux and config
  setting. The format is atmel,pins = <PIN_BANK PIN_BANK_NUM PERIPH CONFIG>.
-  The PERIPH 0 means gpio.
+  The PERIPH 0 means gpio, PERIPH 1 is periph A, PERIPH 2 is periph B...
+  PIN_BANK 0 is pioA, PIN_BANK 1 is pioB...
 Bits used for CONFIG:
 PULL_UP         (1 << 0): indicate this pin need a pull up.
@@ -126,7 +127,7 @@ pinctrl@fffff400 {
                pinctrl_dbgu: dbgu-0 {
                        atmel,pins =
                                <1 14 0x1 0x0   /* PB14 periph A */
-                                 1 15 0x1 0x1>; /* PB15 periph with pullup */
+                                 1 15 0x1 0x1>; /* PB15 periph A with pullup */
                };
        };
 };
diff --git a/Documentation/filesystems/f2fs.txt b/Documentation/filesystems/f2fs.txt
index 8fbd8b46ee34..dcf338e62b71 100644
--- a/Documentation/filesystems/f2fs.txt
+++ b/Documentation/filesystems/f2fs.txt
@@ -175,9 +175,9 @@ consists of multiple segments as described below.
                                            align with the zone size <-|
                 |-> align with the segment size
     _________________________________________________________________________
-    |            |            |    Node     |   Segment   |   Segment  |      |
+    |            |            |   Segment   |    Node     |   Segment  |      |
-    | Superblock | Checkpoint |   Address   |    Info.    |   Summary  | Main |
+    | Superblock | Checkpoint |    Info.    |   Address   |   Summary  | Main |
-    |    (SB)    |   (CP)     | Table (NAT) | Table (SIT) | Area (SSA) |      |
+    |    (SB)    |   (CP)     | Table (SIT) | Table (NAT) | Area (SSA) |      |
    |____________|_____2______|______N______|______N______|______N_____|__N___|
                                                                       .      .
                                                             .                .
@@ -200,14 +200,14 @@ consists of multiple segments as described below.
 : It contains file system information, bitmaps for valid NAT/SIT sets, orphan
   inode lists, and summary entries of current active segments.
- Node Address Table (NAT)
- : It is composed of a block address table for all the node blocks stored in
-   Main area.
 - Segment Information Table (SIT)
 : It contains segment information such as valid block count and bitmap for the
   validity of all the blocks.
+- Node Address Table (NAT)
+ : It is composed of a block address table for all the node blocks stored in
+   Main area.
 - Segment Summary Area (SSA)
 : It contains summary entries which contains the owner information of all the
   data and node blocks stored in Main area.
@@ -236,13 +236,13 @@ For file system consistency, each CP points to which NAT and SIT copies are
 valid, as shown as below.
  +--------+----------+---------+
-  |   CP   |    NAT   |   SIT   |
+  |   CP   |    SIT   |   NAT   |
  +--------+----------+---------+
  .         .          .          .
  .            .              .              .
  .               .                 .                 .
  +-------+-------+--------+--------+--------+--------+
-  | CP #0 | CP #1 | NAT #0 | NAT #1 | SIT #0 | SIT #1 |
+  | CP #0 | CP #1 | SIT #0 | SIT #1 | NAT #0 | NAT #1 |
  +-------+-------+--------+--------+--------+--------+
     |             ^                          ^
     |             |                          |
diff --git a/MAINTAINERS b/MAINTAINERS
index 3105c4868c4e..8ae709e34523 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -6585,7 +6585,7 @@ F:	drivers/media/platform/s3c-camif/
 F:      include/media/s3c_camif.h
 SERIAL DRIVERS
-M:      Alan Cox <alan@linux.intel.com>
+M:      Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 L:      linux-serial@vger.kernel.org
 S:      Maintained
 F:      drivers/tty/serial
diff --git a/Makefile b/Makefile
index 253a455d8d8d..2cd4c6be44f2 100644
--- a/Makefile
+++ b/Makefile
@@ -169,7 +169,7 @@ SUBARCH := $(shell uname -m | sed -e s/i.86/i386/ -e s/sun4u/sparc64/ \
                                  -e s/arm.*/arm/ -e s/sa110/arm/ \
                                  -e s/s390x/s390/ -e s/parisc64/parisc/ \
                                  -e s/ppc.*/powerpc/ -e s/mips.*/mips/ \
-                                  -e s/sh[234].*/sh/ )
+                                  -e s/sh[234].*/sh/ -e s/aarch64.*/arm64/ )
 # Cross compiling and selecting different set of gcc/bin-utils
 # ---------------------------------------------------------------------------
diff --git a/arch/arm/boot/dts/armada-370-db.dts b/arch/arm/boot/dts/armada-370-db.dts
index 00044026ef1f..9b82facb2561 100644
--- a/arch/arm/boot/dts/armada-370-db.dts
+++ b/arch/arm/boot/dts/armada-370-db.dts
@@ -26,7 +26,7 @@
        memory {
                device_type = "memory";
-                reg = <0x00000000 0x20000000>; /* 512 MB */
+                reg = <0x00000000 0x40000000>; /* 1 GB */
        };
        soc {
diff --git a/arch/arm/boot/dts/armada-xp-mv78230.dtsi b/arch/arm/boot/dts/armada-xp-mv78230.dtsi
index 271855a6e224..e041f42ed711 100644
--- a/arch/arm/boot/dts/armada-xp-mv78230.dtsi
+++ b/arch/arm/boot/dts/armada-xp-mv78230.dtsi
@@ -50,27 +50,25 @@
                };
                gpio0: gpio@d0018100 {
-                        compatible = "marvell,armadaxp-gpio";
+                        compatible = "marvell,orion-gpio";
-                        reg = <0xd0018100 0x40>,
+                        reg = <0xd0018100 0x40>;
-                            <0xd0018800 0x30>;
                        ngpios = <32>;
                        gpio-controller;
                        #gpio-cells = <2>;
                        interrupt-controller;
                        #interrupts-cells = <2>;
-                        interrupts = <16>, <17>, <18>, <19>;
+                        interrupts = <82>, <83>, <84>, <85>;
                };
                gpio1: gpio@d0018140 {
-                        compatible = "marvell,armadaxp-gpio";
+                        compatible = "marvell,orion-gpio";
-                        reg = <0xd0018140 0x40>,
+                        reg = <0xd0018140 0x40>;
-                            <0xd0018840 0x30>;
                        ngpios = <17>;
                        gpio-controller;
                        #gpio-cells = <2>;
                        interrupt-controller;
                        #interrupts-cells = <2>;
-                        interrupts = <20>, <21>, <22>;
+                        interrupts = <87>, <88>, <89>;
                };
        };
 };
diff --git a/arch/arm/boot/dts/armada-xp-mv78260.dtsi b/arch/arm/boot/dts/armada-xp-mv78260.dtsi
index 1c1937dbce73..9e23bd8c9536 100644
--- a/arch/arm/boot/dts/armada-xp-mv78260.dtsi
+++ b/arch/arm/boot/dts/armada-xp-mv78260.dtsi
@@ -51,39 +51,36 @@
                };
                gpio0: gpio@d0018100 {
-                        compatible = "marvell,armadaxp-gpio";
+                        compatible = "marvell,orion-gpio";
-                        reg = <0xd0018100 0x40>,
+                        reg = <0xd0018100 0x40>;
-                            <0xd0018800 0x30>;
                        ngpios = <32>;
                        gpio-controller;
                        #gpio-cells = <2>;
                        interrupt-controller;
                        #interrupts-cells = <2>;
-                        interrupts = <16>, <17>, <18>, <19>;
+                        interrupts = <82>, <83>, <84>, <85>;
                };
                gpio1: gpio@d0018140 {
-                        compatible = "marvell,armadaxp-gpio";
+                        compatible = "marvell,orion-gpio";
-                        reg = <0xd0018140 0x40>,
+                        reg = <0xd0018140 0x40>;
-                            <0xd0018840 0x30>;
                        ngpios = <32>;
                        gpio-controller;
                        #gpio-cells = <2>;
                        interrupt-controller;
                        #interrupts-cells = <2>;
-                        interrupts = <20>, <21>, <22>, <23>;
+                        interrupts = <87>, <88>, <89>, <90>;
                };
                gpio2: gpio@d0018180 {
-                        compatible = "marvell,armadaxp-gpio";
+                        compatible = "marvell,orion-gpio";
-                        reg = <0xd0018180 0x40>,
+                        reg = <0xd0018180 0x40>;
-                            <0xd0018870 0x30>;
                        ngpios = <3>;
                        gpio-controller;
                        #gpio-cells = <2>;
                        interrupt-controller;
                        #interrupts-cells = <2>;
-                        interrupts = <24>;
+                        interrupts = <91>;
                };
                ethernet@d0034000 {
diff --git a/arch/arm/boot/dts/armada-xp-mv78460.dtsi b/arch/arm/boot/dts/armada-xp-mv78460.dtsi
index 4905cf3a5ef8..965966110e38 100644
--- a/arch/arm/boot/dts/armada-xp-mv78460.dtsi
+++ b/arch/arm/boot/dts/armada-xp-mv78460.dtsi
@@ -66,39 +66,36 @@
                };
                gpio0: gpio@d0018100 {
-                        compatible = "marvell,armadaxp-gpio";
+                        compatible = "marvell,orion-gpio";
-                        reg = <0xd0018100 0x40>,
+                        reg = <0xd0018100 0x40>;
-                            <0xd0018800 0x30>;
                        ngpios = <32>;
                        gpio-controller;
                        #gpio-cells = <2>;
                        interrupt-controller;
                        #interrupts-cells = <2>;
-                        interrupts = <16>, <17>, <18>, <19>;
+                        interrupts = <82>, <83>, <84>, <85>;
                };
                gpio1: gpio@d0018140 {
-                        compatible = "marvell,armadaxp-gpio";
+                        compatible = "marvell,orion-gpio";
-                        reg = <0xd0018140 0x40>,
+                        reg = <0xd0018140 0x40>;
-                            <0xd0018840 0x30>;
                        ngpios = <32>;
                        gpio-controller;
                        #gpio-cells = <2>;
                        interrupt-controller;
                        #interrupts-cells = <2>;
-                        interrupts = <20>, <21>, <22>, <23>;
+                        interrupts = <87>, <88>, <89>, <90>;
                };
                gpio2: gpio@d0018180 {
-                        compatible = "marvell,armadaxp-gpio";
+                        compatible = "marvell,orion-gpio";
-                        reg = <0xd0018180 0x40>,
+                        reg = <0xd0018180 0x40>;
-                            <0xd0018870 0x30>;
                        ngpios = <3>;
                        gpio-controller;
                        #gpio-cells = <2>;
                        interrupt-controller;
                        #interrupts-cells = <2>;
-                        interrupts = <24>;
+                        interrupts = <91>;
                };
                ethernet@d0034000 {
diff --git a/arch/arm/boot/dts/at91rm9200.dtsi b/arch/arm/boot/dts/at91rm9200.dtsi
index e154f242c680..222047f1ece9 100644
--- a/arch/arm/boot/dts/at91rm9200.dtsi
+++ b/arch/arm/boot/dts/at91rm9200.dtsi
@@ -336,8 +336,8 @@
        i2c@0 {
                compatible = "i2c-gpio";
-                gpios = <&pioA 23 0 /* sda */
+                gpios = <&pioA 25 0 /* sda */
-                         &pioA 24 0 /* scl */
+                         &pioA 26 0 /* scl */
                        >;
                i2c-gpio,sda-open-drain;
                i2c-gpio,scl-open-drain;
diff --git a/arch/arm/boot/dts/at91sam9x5.dtsi b/arch/arm/boot/dts/at91sam9x5.dtsi
index 3a47cf952146..8ecca6948d81 100644
--- a/arch/arm/boot/dts/at91sam9x5.dtsi
+++ b/arch/arm/boot/dts/at91sam9x5.dtsi
@@ -143,6 +143,11 @@
                                                atmel,pins =
                                                        <0 3 0x1 0x0>;  /* PA3 periph A */
                                        };
+                                        pinctrl_usart0_sck: usart0_sck-0 {
+                                                atmel,pins =
+                                                        <0 4 0x1 0x0>;  /* PA4 periph A */
+                                        };
                                };
                                usart1 {
@@ -154,12 +159,17 @@
                                        pinctrl_usart1_rts: usart1_rts-0 {
                                                atmel,pins =
-                                                        <3 27 0x3 0x0>; /* PC27 periph C */
+                                                        <2 27 0x3 0x0>; /* PC27 periph C */
                                        };
                                        pinctrl_usart1_cts: usart1_cts-0 {
                                                atmel,pins =
-                                                        <3 28 0x3 0x0>; /* PC28 periph C */
+                                                        <2 28 0x3 0x0>; /* PC28 periph C */
+                                        };
+                                        pinctrl_usart1_sck: usart1_sck-0 {
+                                                atmel,pins =
+                                                        <2 28 0x3 0x0>; /* PC29 periph C */
                                        };
                                };
@@ -172,46 +182,56 @@
                                        pinctrl_uart2_rts: uart2_rts-0 {
                                                atmel,pins =
-                                                        <0 0 0x2 0x0>;  /* PB0 periph B */
+                                                        <1 0 0x2 0x0>;  /* PB0 periph B */
                                        };
                                        pinctrl_uart2_cts: uart2_cts-0 {
                                                atmel,pins =
-                                                        <0 1 0x2 0x0>;  /* PB1 periph B */
+                                                        <1 1 0x2 0x0>;  /* PB1 periph B */
+                                        };
+                                        pinctrl_usart2_sck: usart2_sck-0 {
+                                                atmel,pins =
+                                                        <1 2 0x2 0x0>;  /* PB2 periph B */
                                        };
                                };
                                usart3 {
                                        pinctrl_uart3: usart3-0 {
                                                atmel,pins =
-                                                        <3 23 0x2 0x1   /* PC22 periph B with pullup */
+                                                        <2 23 0x2 0x1   /* PC22 periph B with pullup */
-                                                         3 23 0x2 0x0>; /* PC23 periph B */
+                                                         2 23 0x2 0x0>; /* PC23 periph B */
                                        };
                                        pinctrl_usart3_rts: usart3_rts-0 {
                                                atmel,pins =
-                                                        <3 24 0x2 0x0>; /* PC24 periph B */
+                                                        <2 24 0x2 0x0>; /* PC24 periph B */
                                        };
                                        pinctrl_usart3_cts: usart3_cts-0 {
                                                atmel,pins =
-                                                        <3 25 0x2 0x0>; /* PC25 periph B */
+                                                        <2 25 0x2 0x0>; /* PC25 periph B */
+                                        };
+                                        pinctrl_usart3_sck: usart3_sck-0 {
+                                                atmel,pins =
+                                                        <2 26 0x2 0x0>; /* PC26 periph B */
                                        };
                                };
                                uart0 {
                                        pinctrl_uart0: uart0-0 {
                                                atmel,pins =
-                                                        <3 8 0x3 0x0    /* PC8 periph C */
+                                                        <2 8 0x3 0x0    /* PC8 periph C */
-                                                         3 9 0x3 0x1>;  /* PC9 periph C with pullup */
+                                                         2 9 0x3 0x1>;  /* PC9 periph C with pullup */
                                        };
                                };
                                uart1 {
                                        pinctrl_uart1: uart1-0 {
                                                atmel,pins =
-                                                        <3 16 0x3 0x0   /* PC16 periph C */
+                                                        <2 16 0x3 0x0   /* PC16 periph C */
-                                                         3 17 0x3 0x1>; /* PC17 periph C with pullup */
+                                                         2 17 0x3 0x1>; /* PC17 periph C with pullup */
                                        };
                                };
@@ -240,14 +260,14 @@
                                        pinctrl_macb0_rmii_mii: macb0_rmii_mii-0 {
                                                atmel,pins =
-                                                        <1 8 0x1 0x0    /* PA8 periph A */
+                                                        <1 8 0x1 0x0    /* PB8 periph A */
-                                                         1 11 0x1 0x0   /* PA11 periph A */
+                                                         1 11 0x1 0x0   /* PB11 periph A */
-                                                         1 12 0x1 0x0   /* PA12 periph A */
+                                                         1 12 0x1 0x0   /* PB12 periph A */
-                                                         1 13 0x1 0x0   /* PA13 periph A */
+                                                         1 13 0x1 0x0   /* PB13 periph A */
-                                                         1 14 0x1 0x0   /* PA14 periph A */
+                                                         1 14 0x1 0x0   /* PB14 periph A */
-                                                         1 15 0x1 0x0   /* PA15 periph A */
+                                                         1 15 0x1 0x0   /* PB15 periph A */
-                                                         1 16 0x1 0x0   /* PA16 periph A */
+                                                         1 16 0x1 0x0   /* PB16 periph A */
-                                                         1 17 0x1 0x0>; /* PA17 periph A */
+                                                         1 17 0x1 0x0>; /* PB17 periph A */
                                        };
                                };
diff --git a/arch/arm/boot/dts/cros5250-common.dtsi b/arch/arm/boot/dts/cros5250-common.dtsi
index fddd17417433..46c098017036 100644
--- a/arch/arm/boot/dts/cros5250-common.dtsi
+++ b/arch/arm/boot/dts/cros5250-common.dtsi
@@ -96,8 +96,8 @@
                fifo-depth = <0x80>;
                card-detect-delay = <200>;
                samsung,dw-mshc-ciu-div = <3>;
-                samsung,dw-mshc-sdr-timing = <2 3 3>;
+                samsung,dw-mshc-sdr-timing = <2 3>;
-                samsung,dw-mshc-ddr-timing = <1 2 3>;
+                samsung,dw-mshc-ddr-timing = <1 2>;
                slot@0 {
                        reg = <0>;
@@ -120,8 +120,8 @@
                fifo-depth = <0x80>;
                card-detect-delay = <200>;
                samsung,dw-mshc-ciu-div = <3>;
-                samsung,dw-mshc-sdr-timing = <2 3 3>;
+                samsung,dw-mshc-sdr-timing = <2 3>;
-                samsung,dw-mshc-ddr-timing = <1 2 3>;
+                samsung,dw-mshc-ddr-timing = <1 2>;
                slot@0 {
                        reg = <0>;
@@ -141,8 +141,8 @@
                fifo-depth = <0x80>;
                card-detect-delay = <200>;
                samsung,dw-mshc-ciu-div = <3>;
-                samsung,dw-mshc-sdr-timing = <2 3 3>;
+                samsung,dw-mshc-sdr-timing = <2 3>;
-                samsung,dw-mshc-ddr-timing = <1 2 3>;
+                samsung,dw-mshc-ddr-timing = <1 2>;
                slot@0 {
                        reg = <0>;
diff --git a/arch/arm/boot/dts/dove-cubox.dts b/arch/arm/boot/dts/dove-cubox.dts
index fed7d3f9f431..cdee96fca6e2 100644
--- a/arch/arm/boot/dts/dove-cubox.dts
+++ b/arch/arm/boot/dts/dove-cubox.dts
@@ -26,10 +26,15 @@
 };
 &uart0 { status = "okay"; };
-&sdio0 { status = "okay"; };
 &sata0 { status = "okay"; };
 &i2c0 { status = "okay"; };
+&sdio0 {
+        status = "okay";
+        /* sdio0 card detect is connected to wrong pin on CuBox */
+        cd-gpios = <&gpio0 12 1>;
+};
 &spi0 {
        status = "okay";
@@ -42,9 +47,14 @@
 };
 &pinctrl {
-        pinctrl-0 = <&pmx_gpio_18>;
+        pinctrl-0 = <&pmx_gpio_12 &pmx_gpio_18>;
        pinctrl-names = "default";
+        pmx_gpio_12: pmx-gpio-12 {
+                marvell,pins = "mpp12";
+                marvell,function = "gpio";
+        };
        pmx_gpio_18: pmx-gpio-18 {
                marvell,pins = "mpp18";
                marvell,function = "gpio";
diff --git a/arch/arm/boot/dts/exynos5250-smdk5250.dts b/arch/arm/boot/dts/exynos5250-smdk5250.dts
index 942d5761ca97..e05b18f3c33d 100644
--- a/arch/arm/boot/dts/exynos5250-smdk5250.dts
+++ b/arch/arm/boot/dts/exynos5250-smdk5250.dts
@@ -115,8 +115,8 @@
                fifo-depth = <0x80>;
                card-detect-delay = <200>;
                samsung,dw-mshc-ciu-div = <3>;
-                samsung,dw-mshc-sdr-timing = <2 3 3>;
+                samsung,dw-mshc-sdr-timing = <2 3>;
-                samsung,dw-mshc-ddr-timing = <1 2 3>;
+                samsung,dw-mshc-ddr-timing = <1 2>;
                slot@0 {
                        reg = <0>;
@@ -139,8 +139,8 @@
                fifo-depth = <0x80>;
                card-detect-delay = <200>;
                samsung,dw-mshc-ciu-div = <3>;
-                samsung,dw-mshc-sdr-timing = <2 3 3>;
+                samsung,dw-mshc-sdr-timing = <2 3>;
-                samsung,dw-mshc-ddr-timing = <1 2 3>;
+                samsung,dw-mshc-ddr-timing = <1 2>;
                slot@0 {
                        reg = <0>;
diff --git a/arch/arm/boot/dts/kirkwood-ns2-common.dtsi b/arch/arm/boot/dts/kirkwood-ns2-common.dtsi
index 9bc6785ad228..77d21abfcdf7 100644
--- a/arch/arm/boot/dts/kirkwood-ns2-common.dtsi
+++ b/arch/arm/boot/dts/kirkwood-ns2-common.dtsi
@@ -1,4 +1,5 @@
 /include/ "kirkwood.dtsi"
+/include/ "kirkwood-6281.dtsi"
 / {
        chosen {
@@ -6,6 +7,21 @@
        };
        ocp@f1000000 {
+                pinctrl: pinctrl@10000 {
+                        pinctrl-0 = < &pmx_spi &pmx_twsi0 &pmx_uart0
+                                        &pmx_ns2_sata0 &pmx_ns2_sata1>;
+                        pinctrl-names = "default";
+                        pmx_ns2_sata0: pmx-ns2-sata0 {
+                                marvell,pins = "mpp21";
+                                marvell,function = "sata0";
+                        };
+                        pmx_ns2_sata1: pmx-ns2-sata1 {
+                                marvell,pins = "mpp20";
+                                marvell,function = "sata1";
+                        };
+                };
                serial@12000 {
                        clock-frequency = <166666667>;
                        status = "okay";
diff --git a/arch/arm/boot/dts/kirkwood.dtsi b/arch/arm/boot/dts/kirkwood.dtsi
index 110d6cbb795b..d6ab442b7011 100644
--- a/arch/arm/boot/dts/kirkwood.dtsi
+++ b/arch/arm/boot/dts/kirkwood.dtsi
@@ -36,6 +36,7 @@
                        reg = <0x10100 0x40>;
                        ngpios = <32>;
                        interrupt-controller;
+                        #interrupt-cells = <2>;
                        interrupts = <35>, <36>, <37>, <38>;
                };
@@ -46,6 +47,7 @@
                        reg = <0x10140 0x40>;
                        ngpios = <18>;
                        interrupt-controller;
+                        #interrupt-cells = <2>;
                        interrupts = <39>, <40>, <41>;
                };
diff --git a/arch/arm/boot/dts/kizbox.dts b/arch/arm/boot/dts/kizbox.dts
index e8814fe0e277..b4dc3ed9a3ec 100644
--- a/arch/arm/boot/dts/kizbox.dts
+++ b/arch/arm/boot/dts/kizbox.dts
@@ -48,6 +48,8 @@
                        macb0: ethernet@fffc4000 {
                                phy-mode = "mii";
+                                pinctrl-0 = <&pinctrl_macb_rmii
+                                             &pinctrl_macb_rmii_mii_alt>;
                                status = "okay";
                        };
diff --git a/arch/arm/boot/dts/sunxi.dtsi b/arch/arm/boot/dts/sunxi.dtsi
index 8bbc2bfef221..8b36abea9f2e 100644
--- a/arch/arm/boot/dts/sunxi.dtsi
+++ b/arch/arm/boot/dts/sunxi.dtsi
@@ -60,19 +60,21 @@
                };
                uart0: uart@01c28000 {
-                        compatible = "ns8250";
+                        compatible = "snps,dw-apb-uart";
                        reg = <0x01c28000 0x400>;
                        interrupts = <1>;
                        reg-shift = <2>;
+                        reg-io-width = <4>;
                        clock-frequency = <24000000>;
                        status = "disabled";
                };
                uart1: uart@01c28400 {
-                        compatible = "ns8250";
+                        compatible = "snps,dw-apb-uart";
                        reg = <0x01c28400 0x400>;
                        interrupts = <2>;
                        reg-shift = <2>;
+                        reg-io-width = <4>;
                        clock-frequency = <24000000>;
                        status = "disabled";
                };
diff --git a/arch/arm/boot/dts/vexpress-v2p-ca15_a7.dts b/arch/arm/boot/dts/vexpress-v2p-ca15_a7.dts
index 1fc405a9ecfb..cf8071ad22d5 100644
--- a/arch/arm/boot/dts/vexpress-v2p-ca15_a7.dts
+++ b/arch/arm/boot/dts/vexpress-v2p-ca15_a7.dts
@@ -45,7 +45,6 @@
                        reg = <1>;
                };
-/* A7s disabled till big.LITTLE patches are available...
                cpu2: cpu@2 {
                        device_type = "cpu";
                        compatible = "arm,cortex-a7";
@@ -63,7 +62,6 @@
                        compatible = "arm,cortex-a7";
                        reg = <0x102>;
                };
-*/
        };
        memory@80000000 {
diff --git a/arch/arm/configs/at91_dt_defconfig b/arch/arm/configs/at91_dt_defconfig
index b175577d7abb..1ea959019fcd 100644
--- a/arch/arm/configs/at91_dt_defconfig
+++ b/arch/arm/configs/at91_dt_defconfig
@@ -19,6 +19,7 @@ CONFIG_SOC_AT91SAM9260=y
 CONFIG_SOC_AT91SAM9263=y
 CONFIG_SOC_AT91SAM9G45=y
 CONFIG_SOC_AT91SAM9X5=y
+CONFIG_SOC_AT91SAM9N12=y
 CONFIG_MACH_AT91SAM_DT=y
 CONFIG_AT91_PROGRAMMABLE_CLOCKS=y
 CONFIG_AT91_TIMER_HZ=128
@@ -31,7 +32,7 @@ CONFIG_ZBOOT_ROM_TEXT=0x0
 CONFIG_ZBOOT_ROM_BSS=0x0
 CONFIG_ARM_APPENDED_DTB=y
 CONFIG_ARM_ATAG_DTB_COMPAT=y
-CONFIG_CMDLINE="mem=128M console=ttyS0,115200 initrd=0x21100000,25165824 root=/dev/ram0 rw"
+CONFIG_CMDLINE="console=ttyS0,115200 initrd=0x21100000,25165824 root=/dev/ram0 rw"
 CONFIG_KEXEC=y
 CONFIG_AUTO_ZRELADDR=y
 # CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
diff --git a/arch/arm/kernel/debug.S b/arch/arm/kernel/debug.S
index 6809200c31fb..14f7c3b14632 100644
--- a/arch/arm/kernel/debug.S
+++ b/arch/arm/kernel/debug.S
@@ -100,12 +100,14 @@ ENTRY(printch)
                b       1b
 ENDPROC(printch)
+#ifdef CONFIG_MMU
 ENTRY(debug_ll_addr)
                addruart r2, r3, ip
                str     r2, [r0]
                str     r3, [r1]
                mov     pc, lr
 ENDPROC(debug_ll_addr)
+#endif
 #else
diff --git a/arch/arm/kernel/head.S b/arch/arm/kernel/head.S
index 4eee351f4668..486a15ae9011 100644
--- a/arch/arm/kernel/head.S
+++ b/arch/arm/kernel/head.S
@@ -246,6 +246,7 @@ __create_page_tables:
        /*
         * Then map boot params address in r2 if specified.
+         * We map 2 sections in case the ATAGs/DTB crosses a section boundary.
         */
        mov     r0, r2, lsr #SECTION_SHIFT
        movs    r0, r0, lsl #SECTION_SHIFT
@@ -253,6 +254,8 @@ __create_page_tables:
        addne   r3, r3, #PAGE_OFFSET
        addne   r3, r4, r3, lsr #(SECTION_SHIFT - PMD_ORDER)
        orrne   r6, r7, r0
+        strne   r6, [r3], #1 << PMD_ORDER
+        addne   r6, r6, #1 << SECTION_SHIFT
        strne   r6, [r3]
 #ifdef CONFIG_DEBUG_LL
@@ -331,7 +334,7 @@ ENTRY(secondary_startup)
         * as it has already been validated by the primary processor.
         */
 #ifdef CONFIG_ARM_VIRT_EXT
-        bl      __hyp_stub_install
+        bl      __hyp_stub_install_secondary
 #endif
        safe_svcmode_maskall r9
diff --git a/arch/arm/kernel/hyp-stub.S b/arch/arm/kernel/hyp-stub.S
index 65b2417aebce..1315c4ccfa56 100644
--- a/arch/arm/kernel/hyp-stub.S
+++ b/arch/arm/kernel/hyp-stub.S
@@ -99,7 +99,7 @@ ENTRY(__hyp_stub_install_secondary)
         * immediately.
         */
        compare_cpu_mode_with_primary   r4, r5, r6, r7
-        bxne    lr
+        movne   pc, lr
        /*
         * Once we have given up on one CPU, we do not try to install the
@@ -111,7 +111,7 @@ ENTRY(__hyp_stub_install_secondary)
         */
        cmp     r4, #HYP_MODE
-        bxne    lr                      @ give up if the CPU is not in HYP mode
+        movne   pc, lr                  @ give up if the CPU is not in HYP mode
 /*
 * Configure HSCTLR to set correct exception endianness/instruction set
@@ -120,7 +120,8 @@ ENTRY(__hyp_stub_install_secondary)
 * Eventually, CPU-specific code might be needed -- assume not for now
 *
 * This code relies on the "eret" instruction to synchronize the
- * various coprocessor accesses.
+ * various coprocessor accesses. This is done when we switch to SVC
+ * (see safe_svcmode_maskall).
 */
        @ Now install the hypervisor stub:
        adr     r7, __hyp_stub_vectors
@@ -155,14 +156,7 @@ THUMB(	orr	r7, #(1 << 30)	)	@ HSCTLR.TE
 1:
 #endif
-        bic     r7, r4, #MODE_MASK
+        bx      lr                      @ The boot CPU mode is left in r4.
-        orr     r7, r7, #SVC_MODE
-THUMB(  orr     r7, r7, #PSR_T_BIT      )
-        msr     spsr_cxsf, r7           @ This is SPSR_hyp.
-        __MSR_ELR_HYP(14)               @ msr elr_hyp, lr
-        __ERET                          @ return, switching to SVC mode
-                                        @ The boot CPU mode is left in r4.
 ENDPROC(__hyp_stub_install_secondary)
 __hyp_stub_do_trap:
@@ -200,7 +194,7 @@ ENDPROC(__hyp_get_vectors)
        @ fall through
 ENTRY(__hyp_set_vectors)
        __HVC(0)
-        bx      lr
+        mov     pc, lr
 ENDPROC(__hyp_set_vectors)
 #ifndef ZIMAGE
diff --git a/arch/arm/mach-at91/setup.c b/arch/arm/mach-at91/setup.c
index 9ee866ce0478..4b678478cf95 100644
--- a/arch/arm/mach-at91/setup.c
+++ b/arch/arm/mach-at91/setup.c
@@ -105,6 +105,8 @@ static void __init soc_detect(u32 dbgu_base)
        switch (socid) {
        case ARCH_ID_AT91RM9200:
                at91_soc_initdata.type = AT91_SOC_RM9200;
+                if (at91_soc_initdata.subtype == AT91_SOC_SUBTYPE_NONE)
+                        at91_soc_initdata.subtype = AT91_SOC_RM9200_BGA;
                at91_boot_soc = at91rm9200_soc;
                break;
diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig
index 3e628fd7a674..0a2349dc7018 100644
--- a/arch/arm/mach-imx/Kconfig
+++ b/arch/arm/mach-imx/Kconfig
@@ -851,6 +851,7 @@ config SOC_IMX6Q
        select HAVE_CAN_FLEXCAN if CAN
        select HAVE_IMX_GPC
        select HAVE_IMX_MMDC
+        select HAVE_IMX_SRC
        select HAVE_SMP
        select MFD_SYSCON
        select PINCTRL
diff --git a/arch/arm/mach-imx/clk-imx25.c b/arch/arm/mach-imx/clk-imx25.c
index b197aa73dc4b..2c570cdaae7b 100644
--- a/arch/arm/mach-imx/clk-imx25.c
+++ b/arch/arm/mach-imx/clk-imx25.c
@@ -254,9 +254,9 @@ int __init mx25_clocks_init(void)
        clk_register_clkdev(clk[ipg], "ipg", "mxc-ehci.2");
        clk_register_clkdev(clk[usbotg_ahb], "ahb", "mxc-ehci.2");
        clk_register_clkdev(clk[usb_div], "per", "mxc-ehci.2");
-        clk_register_clkdev(clk[ipg], "ipg", "fsl-usb2-udc");
+        clk_register_clkdev(clk[ipg], "ipg", "imx-udc-mx27");
-        clk_register_clkdev(clk[usbotg_ahb], "ahb", "fsl-usb2-udc");
+        clk_register_clkdev(clk[usbotg_ahb], "ahb", "imx-udc-mx27");
-        clk_register_clkdev(clk[usb_div], "per", "fsl-usb2-udc");
+        clk_register_clkdev(clk[usb_div], "per", "imx-udc-mx27");
        clk_register_clkdev(clk[nfc_ipg_per], NULL, "imx25-nand.0");
        /* i.mx25 has the i.mx35 type cspi */
        clk_register_clkdev(clk[cspi1_ipg], NULL, "imx35-cspi.0");
diff --git a/arch/arm/mach-imx/clk-imx27.c b/arch/arm/mach-imx/clk-imx27.c
index 4c1d1e4efc74..1ffe3b534e51 100644
--- a/arch/arm/mach-imx/clk-imx27.c
+++ b/arch/arm/mach-imx/clk-imx27.c
@@ -236,9 +236,9 @@ int __init mx27_clocks_init(unsigned long fref)
        clk_register_clkdev(clk[lcdc_ahb_gate], "ahb", "imx21-fb.0");
        clk_register_clkdev(clk[csi_ahb_gate], "ahb", "imx27-camera.0");
        clk_register_clkdev(clk[per4_gate], "per", "imx27-camera.0");
-        clk_register_clkdev(clk[usb_div], "per", "fsl-usb2-udc");
+        clk_register_clkdev(clk[usb_div], "per", "imx-udc-mx27");
-        clk_register_clkdev(clk[usb_ipg_gate], "ipg", "fsl-usb2-udc");
+        clk_register_clkdev(clk[usb_ipg_gate], "ipg", "imx-udc-mx27");
-        clk_register_clkdev(clk[usb_ahb_gate], "ahb", "fsl-usb2-udc");
+        clk_register_clkdev(clk[usb_ahb_gate], "ahb", "imx-udc-mx27");
        clk_register_clkdev(clk[usb_div], "per", "mxc-ehci.0");
        clk_register_clkdev(clk[usb_ipg_gate], "ipg", "mxc-ehci.0");
        clk_register_clkdev(clk[usb_ahb_gate], "ahb", "mxc-ehci.0");
diff --git a/arch/arm/mach-imx/clk-imx31.c b/arch/arm/mach-imx/clk-imx31.c
index 8be64e0a4ace..16ccbd41dea9 100644
--- a/arch/arm/mach-imx/clk-imx31.c
+++ b/arch/arm/mach-imx/clk-imx31.c
@@ -139,9 +139,9 @@ int __init mx31_clocks_init(unsigned long fref)
        clk_register_clkdev(clk[usb_div_post], "per", "mxc-ehci.2");
        clk_register_clkdev(clk[usb_gate], "ahb", "mxc-ehci.2");
        clk_register_clkdev(clk[ipg], "ipg", "mxc-ehci.2");
-        clk_register_clkdev(clk[usb_div_post], "per", "fsl-usb2-udc");
+        clk_register_clkdev(clk[usb_div_post], "per", "imx-udc-mx27");
-        clk_register_clkdev(clk[usb_gate], "ahb", "fsl-usb2-udc");
+        clk_register_clkdev(clk[usb_gate], "ahb", "imx-udc-mx27");
-        clk_register_clkdev(clk[ipg], "ipg", "fsl-usb2-udc");
+        clk_register_clkdev(clk[ipg], "ipg", "imx-udc-mx27");
        clk_register_clkdev(clk[csi_gate], NULL, "mx3-camera.0");
        /* i.mx31 has the i.mx21 type uart */
        clk_register_clkdev(clk[uart1_gate], "per", "imx21-uart.0");
diff --git a/arch/arm/mach-imx/clk-imx35.c b/arch/arm/mach-imx/clk-imx35.c
index 66f3d65ea275..f0727e80815d 100644
--- a/arch/arm/mach-imx/clk-imx35.c
+++ b/arch/arm/mach-imx/clk-imx35.c
@@ -251,9 +251,9 @@ int __init mx35_clocks_init()
        clk_register_clkdev(clk[usb_div], "per", "mxc-ehci.2");
        clk_register_clkdev(clk[ipg], "ipg", "mxc-ehci.2");
        clk_register_clkdev(clk[usbotg_gate], "ahb", "mxc-ehci.2");
-        clk_register_clkdev(clk[usb_div], "per", "fsl-usb2-udc");
+        clk_register_clkdev(clk[usb_div], "per", "imx-udc-mx27");
-        clk_register_clkdev(clk[ipg], "ipg", "fsl-usb2-udc");
+        clk_register_clkdev(clk[ipg], "ipg", "imx-udc-mx27");
-        clk_register_clkdev(clk[usbotg_gate], "ahb", "fsl-usb2-udc");
+        clk_register_clkdev(clk[usbotg_gate], "ahb", "imx-udc-mx27");
        clk_register_clkdev(clk[wdog_gate], NULL, "imx2-wdt.0");
        clk_register_clkdev(clk[nfc_div], NULL, "imx25-nand.0");
        clk_register_clkdev(clk[csi_gate], NULL, "mx3-camera.0");
diff --git a/arch/arm/mach-imx/clk-imx51-imx53.c b/arch/arm/mach-imx/clk-imx51-imx53.c
index 579023f59dc1..fb7cb841b64c 100644
--- a/arch/arm/mach-imx/clk-imx51-imx53.c
+++ b/arch/arm/mach-imx/clk-imx51-imx53.c
@@ -269,9 +269,9 @@ static void __init mx5_clocks_common_init(unsigned long rate_ckil,
        clk_register_clkdev(clk[usboh3_per_gate], "per", "mxc-ehci.2");
        clk_register_clkdev(clk[usboh3_gate], "ipg", "mxc-ehci.2");
        clk_register_clkdev(clk[usboh3_gate], "ahb", "mxc-ehci.2");
-        clk_register_clkdev(clk[usboh3_per_gate], "per", "fsl-usb2-udc");
+        clk_register_clkdev(clk[usboh3_per_gate], "per", "imx-udc-mx51");
-        clk_register_clkdev(clk[usboh3_gate], "ipg", "fsl-usb2-udc");
+        clk_register_clkdev(clk[usboh3_gate], "ipg", "imx-udc-mx51");
-        clk_register_clkdev(clk[usboh3_gate], "ahb", "fsl-usb2-udc");
+        clk_register_clkdev(clk[usboh3_gate], "ahb", "imx-udc-mx51");
        clk_register_clkdev(clk[nfc_gate], NULL, "imx51-nand");
        clk_register_clkdev(clk[ssi1_ipg_gate], NULL, "imx-ssi.0");
        clk_register_clkdev(clk[ssi2_ipg_gate], NULL, "imx-ssi.1");
diff --git a/arch/arm/mach-imx/clk-imx6q.c b/arch/arm/mach-imx/clk-imx6q.c
index 7f2c10c7413a..c0c4e723b7f5 100644
--- a/arch/arm/mach-imx/clk-imx6q.c
+++ b/arch/arm/mach-imx/clk-imx6q.c
@@ -436,6 +436,9 @@ int __init mx6q_clocks_init(void)
        for (i = 0; i < ARRAY_SIZE(clks_init_on); i++)
                clk_prepare_enable(clk[clks_init_on[i]]);
+        /* Set initial power mode */
+        imx6q_set_lpm(WAIT_CLOCKED);
        np = of_find_compatible_node(NULL, NULL, "fsl,imx6q-gpt");
        base = of_iomap(np, 0);
        WARN_ON(!base);
diff --git a/arch/arm/mach-imx/common.h b/arch/arm/mach-imx/common.h
index 7191ab4434e5..fa36fb84ab19 100644
--- a/arch/arm/mach-imx/common.h
+++ b/arch/arm/mach-imx/common.h
@@ -142,6 +142,7 @@ extern int imx6q_set_lpm(enum mxc_cpu_pwr_mode mode);
 extern void imx6q_clock_map_io(void);
 extern void imx_cpu_die(unsigned int cpu);
+extern int imx_cpu_kill(unsigned int cpu);
 #ifdef CONFIG_PM
 extern void imx6q_pm_init(void);
diff --git a/arch/arm/mach-imx/devices/devices-common.h b/arch/arm/mach-imx/devices/devices-common.h
index 6277baf1b7be..9bd5777ff0e7 100644
--- a/arch/arm/mach-imx/devices/devices-common.h
+++ b/arch/arm/mach-imx/devices/devices-common.h
@@ -63,6 +63,7 @@ struct platform_device *__init imx_add_flexcan(
 #include <linux/fsl_devices.h>
 struct imx_fsl_usb2_udc_data {
+        const char *devid;
        resource_size_t iobase;
        resource_size_t irq;
 };
diff --git a/arch/arm/mach-imx/devices/platform-fsl-usb2-udc.c b/arch/arm/mach-imx/devices/platform-fsl-usb2-udc.c
index 37e44398197b..3c06bd96e9cc 100644
--- a/arch/arm/mach-imx/devices/platform-fsl-usb2-udc.c
+++ b/arch/arm/mach-imx/devices/platform-fsl-usb2-udc.c
@@ -11,35 +11,36 @@
 #include "../hardware.h"
 #include "devices-common.h"
-#define imx_fsl_usb2_udc_data_entry_single(soc)                         \
+#define imx_fsl_usb2_udc_data_entry_single(soc, _devid)                 \
        {                                                               \
+                .devid = _devid,                                        \
                .iobase = soc ## _USB_OTG_BASE_ADDR,                    \
                .irq = soc ## _INT_USB_OTG,                             \
        }
 #ifdef CONFIG_SOC_IMX25
 const struct imx_fsl_usb2_udc_data imx25_fsl_usb2_udc_data __initconst =
-        imx_fsl_usb2_udc_data_entry_single(MX25);
+        imx_fsl_usb2_udc_data_entry_single(MX25, "imx-udc-mx27");
 #endif /* ifdef CONFIG_SOC_IMX25 */
 #ifdef CONFIG_SOC_IMX27
 const struct imx_fsl_usb2_udc_data imx27_fsl_usb2_udc_data __initconst =
-        imx_fsl_usb2_udc_data_entry_single(MX27);
+        imx_fsl_usb2_udc_data_entry_single(MX27, "imx-udc-mx27");
 #endif /* ifdef CONFIG_SOC_IMX27 */
 #ifdef CONFIG_SOC_IMX31
 const struct imx_fsl_usb2_udc_data imx31_fsl_usb2_udc_data __initconst =
-        imx_fsl_usb2_udc_data_entry_single(MX31);
+        imx_fsl_usb2_udc_data_entry_single(MX31, "imx-udc-mx27");
 #endif /* ifdef CONFIG_SOC_IMX31 */
 #ifdef CONFIG_SOC_IMX35
 const struct imx_fsl_usb2_udc_data imx35_fsl_usb2_udc_data __initconst =
-        imx_fsl_usb2_udc_data_entry_single(MX35);
+        imx_fsl_usb2_udc_data_entry_single(MX35, "imx-udc-mx27");
 #endif /* ifdef CONFIG_SOC_IMX35 */
 #ifdef CONFIG_SOC_IMX51
 const struct imx_fsl_usb2_udc_data imx51_fsl_usb2_udc_data __initconst =
-        imx_fsl_usb2_udc_data_entry_single(MX51);
+        imx_fsl_usb2_udc_data_entry_single(MX51, "imx-udc-mx51");
 #endif
 struct platform_device *__init imx_add_fsl_usb2_udc(
@@ -57,7 +58,7 @@ struct platform_device *__init imx_add_fsl_usb2_udc(
                        .flags = IORESOURCE_IRQ,
                },
        };
-        return imx_add_platform_device_dmamask("fsl-usb2-udc", -1,
+        return imx_add_platform_device_dmamask(data->devid, -1,
                        res, ARRAY_SIZE(res),
                        pdata, sizeof(*pdata), DMA_BIT_MASK(32));
 }
diff --git a/arch/arm/mach-imx/devices/platform-imx-fb.c b/arch/arm/mach-imx/devices/platform-imx-fb.c
index 10b0ed39f07f..25a47c616b2d 100644
--- a/arch/arm/mach-imx/devices/platform-imx-fb.c
+++ b/arch/arm/mach-imx/devices/platform-imx-fb.c
@@ -54,7 +54,7 @@ struct platform_device *__init imx_add_imx_fb(
                        .flags = IORESOURCE_IRQ,
                },
        };
-        return imx_add_platform_device_dmamask("imx-fb", 0,
+        return imx_add_platform_device_dmamask(data->devid, 0,
                        res, ARRAY_SIZE(res),
                        pdata, sizeof(*pdata), DMA_BIT_MASK(32));
 }
diff --git a/arch/arm/mach-imx/hotplug.c b/arch/arm/mach-imx/hotplug.c
index 3dec962b0770..7bc5fe15dda2 100644
--- a/arch/arm/mach-imx/hotplug.c
+++ b/arch/arm/mach-imx/hotplug.c
@@ -46,9 +46,11 @@ static inline void cpu_enter_lowpower(void)
 void imx_cpu_die(unsigned int cpu)
 {
        cpu_enter_lowpower();
-        imx_enable_cpu(cpu, false);
+        cpu_do_idle();
+}
-        /* spin here until hardware takes it down */
+int imx_cpu_kill(unsigned int cpu)
-        while (1)
+{
-                ;
+        imx_enable_cpu(cpu, false);
+        return 1;
 }
diff --git a/arch/arm/mach-imx/iram_alloc.c b/arch/arm/mach-imx/iram_alloc.c
index 6c80424f678e..e05cf407db65 100644
--- a/arch/arm/mach-imx/iram_alloc.c
+++ b/arch/arm/mach-imx/iram_alloc.c
@@ -22,8 +22,7 @@
 #include <linux/module.h>
 #include <linux/spinlock.h>
 #include <linux/genalloc.h>
+#include "linux/platform_data/imx-iram.h"
-#include "iram.h"
 static unsigned long iram_phys_base;
 static void __iomem *iram_virt_base;
diff --git a/arch/arm/mach-imx/platsmp.c b/arch/arm/mach-imx/platsmp.c
index 3777b805b76b..66fae885c842 100644
--- a/arch/arm/mach-imx/platsmp.c
+++ b/arch/arm/mach-imx/platsmp.c
@@ -92,5 +92,6 @@ struct smp_operations  imx_smp_ops __initdata = {
        .smp_boot_secondary     = imx_boot_secondary,
 #ifdef CONFIG_HOTPLUG_CPU
        .cpu_die                = imx_cpu_die,
+        .cpu_kill               = imx_cpu_kill,
 #endif
 };
diff --git a/arch/arm/mach-imx/pm-imx6q.c b/arch/arm/mach-imx/pm-imx6q.c
index a17543da602d..ee42d20cba19 100644
--- a/arch/arm/mach-imx/pm-imx6q.c
+++ b/arch/arm/mach-imx/pm-imx6q.c
@@ -41,6 +41,7 @@ static int imx6q_pm_enter(suspend_state_t state)
                cpu_suspend(0, imx6q_suspend_finish);
                imx_smp_prepare();
                imx_gpc_post_resume();
+                imx6q_set_lpm(WAIT_CLOCKED);
                break;
        default:
                return -EINVAL;
diff --git a/arch/arm/mach-integrator/pci_v3.c b/arch/arm/mach-integrator/pci_v3.c
index be50e795536d..e7fcea7f3300 100644
--- a/arch/arm/mach-integrator/pci_v3.c
+++ b/arch/arm/mach-integrator/pci_v3.c
@@ -475,13 +475,12 @@ int __init pci_v3_setup(int nr, struct pci_sys_data *sys)
 {
        int ret = 0;
+        if (!ap_syscon_base)
+                return -EINVAL;
        if (nr == 0) {
                sys->mem_offset = PHYS_PCI_MEM_BASE;
                ret = pci_v3_setup_resources(sys);
-                /* Remap the Integrator system controller */
-                ap_syscon_base = ioremap(INTEGRATOR_SC_BASE, 0x100);
-                if (!ap_syscon_base)
-                        return -EINVAL;
        }
        return ret;
@@ -497,6 +496,13 @@ void __init pci_v3_preinit(void)
        unsigned int temp;
        int ret;
+        /* Remap the Integrator system controller */
+        ap_syscon_base = ioremap(INTEGRATOR_SC_BASE, 0x100);
+        if (!ap_syscon_base) {
+                pr_err("unable to remap the AP syscon for PCIv3\n");
+                return;
+        }
        pcibios_min_mem = 0x00100000;
        /*
diff --git a/arch/arm/mach-kirkwood/board-ns2.c b/arch/arm/mach-kirkwood/board-ns2.c
index 8821720ab5a4..f4632a809f68 100644
--- a/arch/arm/mach-kirkwood/board-ns2.c
+++ b/arch/arm/mach-kirkwood/board-ns2.c
@@ -18,47 +18,11 @@
 #include <linux/gpio.h>
 #include <linux/of.h>
 #include "common.h"
-#include "mpp.h"
 static struct mv643xx_eth_platform_data ns2_ge00_data = {
        .phy_addr       = MV643XX_ETH_PHY_ADDR(8),
 };
-static unsigned int ns2_mpp_config[] __initdata = {
-        MPP0_SPI_SCn,
-        MPP1_SPI_MOSI,
-        MPP2_SPI_SCK,
-        MPP3_SPI_MISO,
-        MPP4_NF_IO6,
-        MPP5_NF_IO7,
-        MPP6_SYSRST_OUTn,
-        MPP7_GPO,               /* Fan speed (bit 1) */
-        MPP8_TW0_SDA,
-        MPP9_TW0_SCK,
-        MPP10_UART0_TXD,
-        MPP11_UART0_RXD,
-        MPP12_GPO,              /* Red led */
-        MPP14_GPIO,             /* USB fuse */
-        MPP16_GPIO,             /* SATA 0 power */
-        MPP17_GPIO,             /* SATA 1 power */
-        MPP18_NF_IO0,
-        MPP19_NF_IO1,
-        MPP20_SATA1_ACTn,
-        MPP21_SATA0_ACTn,
-        MPP22_GPIO,             /* Fan speed (bit 0) */
-        MPP23_GPIO,             /* Fan power */
-        MPP24_GPIO,             /* USB mode select */
-        MPP25_GPIO,             /* Fan rotation fail */
-        MPP26_GPIO,             /* USB device vbus */
-        MPP28_GPIO,             /* USB enable host vbus */
-        MPP29_GPIO,             /* Blue led (slow register) */
-        MPP30_GPIO,             /* Blue led (command register) */
-        MPP31_GPIO,             /* Board power off */
-        MPP32_GPIO,             /* Power button (0 = Released, 1 = Pushed) */
-        MPP33_GPO,              /* Fan speed (bit 2) */
-        0
-};
 #define NS2_GPIO_POWER_OFF      31
 static void ns2_power_off(void)
@@ -71,8 +35,6 @@ void __init ns2_init(void)
        /*
         * Basic setup. Needs to be called early.
         */
-        kirkwood_mpp_conf(ns2_mpp_config);
        if (of_machine_is_compatible("lacie,netspace_lite_v2") ||
            of_machine_is_compatible("lacie,netspace_mini_v2"))
                ns2_ge00_data.phy_addr = MV643XX_ETH_PHY_ADDR(0);
diff --git a/arch/arm/mach-mvebu/Makefile b/arch/arm/mach-mvebu/Makefile
index 5dcb369b58aa..99df4df680fd 100644
--- a/arch/arm/mach-mvebu/Makefile
+++ b/arch/arm/mach-mvebu/Makefile
@@ -1,6 +1,8 @@
 ccflags-$(CONFIG_ARCH_MULTIPLATFORM) := -I$(srctree)/$(src)/include \
        -I$(srctree)/arch/arm/plat-orion/include
+AFLAGS_coherency_ll.o           := -Wa,-march=armv7-a
 obj-y += system-controller.o
 obj-$(CONFIG_MACH_ARMADA_370_XP) += armada-370-xp.o irq-armada-370-xp.o addr-map.o coherency.o coherency_ll.o pmsu.o
 obj-$(CONFIG_SMP)                += platsmp.o headsmp.o
diff --git a/arch/arm/mach-omap2/board-omap4panda.c b/arch/arm/mach-omap2/board-omap4panda.c
index 5c8e9cee2c2e..769c1feee1c4 100644
--- a/arch/arm/mach-omap2/board-omap4panda.c
+++ b/arch/arm/mach-omap2/board-omap4panda.c
@@ -397,6 +397,12 @@ static struct omap_board_mux board_mux[] __initdata = {
                  OMAP_PULL_ENA),
        OMAP4_MUX(ABE_MCBSP1_FSX, OMAP_MUX_MODE0 | OMAP_PIN_INPUT),
+        /* UART2 - BT/FM/GPS shared transport */
+        OMAP4_MUX(UART2_CTS,    OMAP_PIN_INPUT  | OMAP_MUX_MODE0),
+        OMAP4_MUX(UART2_RTS,    OMAP_PIN_OUTPUT | OMAP_MUX_MODE0),
+        OMAP4_MUX(UART2_RX,     OMAP_PIN_INPUT  | OMAP_MUX_MODE0),
+        OMAP4_MUX(UART2_TX,     OMAP_PIN_OUTPUT | OMAP_MUX_MODE0),
        { .reg_offset = OMAP_MUX_TERMINATOR },
 };
diff --git a/arch/arm/mach-omap2/cclock2420_data.c b/arch/arm/mach-omap2/cclock2420_data.c
index 7e5febe456d9..ab7e952d2070 100644
--- a/arch/arm/mach-omap2/cclock2420_data.c
+++ b/arch/arm/mach-omap2/cclock2420_data.c
@@ -1935,6 +1935,8 @@ int __init omap2420_clk_init(void)
                        omap2_init_clk_hw_omap_clocks(c->lk.clk);
        }
+        omap2xxx_clkt_vps_late_init();
        omap2_clk_disable_autoidle_all();
        omap2_clk_enable_init_clocks(enable_init_clks,
diff --git a/arch/arm/mach-omap2/cclock2430_data.c b/arch/arm/mach-omap2/cclock2430_data.c
index eda079b96c6a..eb3dab68d536 100644
--- a/arch/arm/mach-omap2/cclock2430_data.c
+++ b/arch/arm/mach-omap2/cclock2430_data.c
@@ -2050,6 +2050,8 @@ int __init omap2430_clk_init(void)
                        omap2_init_clk_hw_omap_clocks(c->lk.clk);
        }
+        omap2xxx_clkt_vps_late_init();
        omap2_clk_disable_autoidle_all();
        omap2_clk_enable_init_clocks(enable_init_clks,
diff --git a/arch/arm/mach-omap2/cclock44xx_data.c b/arch/arm/mach-omap2/cclock44xx_data.c
index 5789a5e25563..a2cc046b47f4 100644
--- a/arch/arm/mach-omap2/cclock44xx_data.c
+++ b/arch/arm/mach-omap2/cclock44xx_data.c
@@ -2026,14 +2026,13 @@ int __init omap4xxx_clk_init(void)
         * On OMAP4460 the ABE DPLL fails to turn on if in idle low-power
         * state when turning the ABE clock domain. Workaround this by
         * locking the ABE DPLL on boot.
+         * Lock the ABE DPLL in any case to avoid issues with audio.
         */
-        if (cpu_is_omap446x()) {
+        rc = clk_set_parent(&abe_dpll_refclk_mux_ck, &sys_32k_ck);
-                rc = clk_set_parent(&abe_dpll_refclk_mux_ck, &sys_32k_ck);
+        if (!rc)
-                if (!rc)
+                rc = clk_set_rate(&dpll_abe_ck, OMAP4_DPLL_ABE_DEFFREQ);
-                        rc = clk_set_rate(&dpll_abe_ck, OMAP4_DPLL_ABE_DEFFREQ);
+        if (rc)
-                if (rc)
+                pr_err("%s: failed to configure ABE DPLL!\n", __func__);
-                        pr_err("%s: failed to configure ABE DPLL!\n", __func__);
-        }
        return 0;
 }
diff --git a/arch/arm/mach-omap2/devices.c b/arch/arm/mach-omap2/devices.c
index 5e304d0719a2..626f3ea3142f 100644
--- a/arch/arm/mach-omap2/devices.c
+++ b/arch/arm/mach-omap2/devices.c
@@ -639,7 +639,7 @@ static int count_ocp2scp_devices(struct omap_ocp2scp_dev *ocp2scp_dev)
        return cnt;
 }
-static void omap_init_ocp2scp(void)
+static void __init omap_init_ocp2scp(void)
 {
        struct omap_hwmod       *oh;
        struct platform_device  *pdev;
diff --git a/arch/arm/mach-omap2/drm.c b/arch/arm/mach-omap2/drm.c
index 4c7566c7e24a..2a2cfa88ddbf 100644
--- a/arch/arm/mach-omap2/drm.c
+++ b/arch/arm/mach-omap2/drm.c
@@ -25,6 +25,7 @@
 #include <linux/dma-mapping.h>
 #include <linux/platform_data/omap_drm.h>
+#include "soc.h"
 #include "omap_device.h"
 #include "omap_hwmod.h"
@@ -56,7 +57,7 @@ static int __init omap_init_drm(void)
                        oh->name);
        }
-        platform_data.omaprev = GET_OMAP_REVISION();
+        platform_data.omaprev = GET_OMAP_TYPE;
        return platform_device_register(&omap_drm_device);
diff --git a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
index 129d5081ed15..793f54ac7d14 100644
--- a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
@@ -2132,8 +2132,12 @@ static struct omap_hwmod omap44xx_mcpdm_hwmod = {
         * 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.
+         *
+         * Also, McPDM needs to be configured to NO_IDLE mode when it
+         * is in used otherwise vital clocks will be gated which
+         * results 'slow motion' audio playback.
         */
-        .flags          = HWMOD_EXT_OPT_MAIN_CLK,
+        .flags          = HWMOD_EXT_OPT_MAIN_CLK | HWMOD_SWSUP_SIDLE,
        .mpu_irqs       = omap44xx_mcpdm_irqs,
        .sdma_reqs      = omap44xx_mcpdm_sdma_reqs,
        .main_clk       = "mcpdm_fck",
diff --git a/arch/arm/mach-omap2/timer.c b/arch/arm/mach-omap2/timer.c
index 691aa674665a..b8ad6e632bb8 100644
--- a/arch/arm/mach-omap2/timer.c
+++ b/arch/arm/mach-omap2/timer.c
@@ -165,15 +165,11 @@ static struct device_node * __init omap_get_timer_dt(struct of_device_id *match,
        struct device_node *np;
        for_each_matching_node(np, match) {
-                if (!of_device_is_available(np)) {
+                if (!of_device_is_available(np))
-                        of_node_put(np);
                        continue;
-                }
-                if (property && !of_get_property(np, property, NULL)) {
+                if (property && !of_get_property(np, property, NULL))
-                        of_node_put(np);
                        continue;
-                }
                of_add_property(np, &device_disabled);
                return np;
diff --git a/arch/arm/mach-s3c64xx/mach-crag6410-module.c b/arch/arm/mach-s3c64xx/mach-crag6410-module.c
index 553059f51841..755c0bb119f4 100644
--- a/arch/arm/mach-s3c64xx/mach-crag6410-module.c
+++ b/arch/arm/mach-s3c64xx/mach-crag6410-module.c
@@ -47,7 +47,7 @@ static struct spi_board_info wm1253_devs[] = {
                .bus_num        = 0,
                .chip_select    = 0,
                .mode           = SPI_MODE_0,
-                .irq            = S3C_EINT(5),
+                .irq            = S3C_EINT(4),
                .controller_data = &wm0010_spi_csinfo,
                .platform_data = &wm0010_pdata,
        },
diff --git a/arch/arm/mach-s3c64xx/pm.c b/arch/arm/mach-s3c64xx/pm.c
index 7feb426fc202..d2e1a16690bd 100644
--- a/arch/arm/mach-s3c64xx/pm.c
+++ b/arch/arm/mach-s3c64xx/pm.c
@@ -338,8 +338,10 @@ int __init s3c64xx_pm_init(void)
        for (i = 0; i < ARRAY_SIZE(s3c64xx_pm_domains); i++)
                pm_genpd_init(&s3c64xx_pm_domains[i]->pd, NULL, false);
+#ifdef CONFIG_S3C_DEV_FB
        if (dev_get_platdata(&s3c_device_fb.dev))
                pm_genpd_add_device(&s3c64xx_pm_f.pd, &s3c_device_fb.dev);
+#endif
        return 0;
 }
diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
index 6b2fb87c8698..076c26d43864 100644
--- a/arch/arm/mm/dma-mapping.c
+++ b/arch/arm/mm/dma-mapping.c
@@ -774,25 +774,27 @@ static void dma_cache_maint_page(struct page *page, unsigned long offset,
        size_t size, enum dma_data_direction dir,
        void (*op)(const void *, size_t, int))
 {
+        unsigned long pfn;
+        size_t left = size;
+        pfn = page_to_pfn(page) + offset / PAGE_SIZE;
+        offset %= PAGE_SIZE;
        /*
         * A single sg entry may refer to multiple physically contiguous
         * pages.  But we still need to process highmem pages individually.
         * If highmem is not configured then the bulk of this loop gets
         * optimized out.
         */
-        size_t left = size;
        do {
                size_t len = left;
                void *vaddr;
+                page = pfn_to_page(pfn);
                if (PageHighMem(page)) {
-                        if (len + offset > PAGE_SIZE) {
+                        if (len + offset > PAGE_SIZE)
-                                if (offset >= PAGE_SIZE) {
-                                        page += offset / PAGE_SIZE;
-                                        offset %= PAGE_SIZE;
-                                }
                                len = PAGE_SIZE - offset;
-                        }
                        vaddr = kmap_high_get(page);
                        if (vaddr) {
                                vaddr += offset;
@@ -809,7 +811,7 @@ static void dma_cache_maint_page(struct page *page, unsigned long offset,
                        op(vaddr, len, dir);
                }
                offset = 0;
-                page++;
+                pfn++;
                left -= len;
        } while (left);
 }
diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c
index 9f0610243bd6..ce328c7f5c94 100644
--- a/arch/arm/mm/mmu.c
+++ b/arch/arm/mm/mmu.c
@@ -283,7 +283,7 @@ static struct mem_type mem_types[] = {
        },
        [MT_MEMORY_SO] = {
                .prot_pte  = L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_DIRTY |
-                                L_PTE_MT_UNCACHED,
+                                L_PTE_MT_UNCACHED | L_PTE_XN,
                .prot_l1   = PMD_TYPE_TABLE,
                .prot_sect = PMD_TYPE_SECT | PMD_SECT_AP_WRITE | PMD_SECT_S |
                                PMD_SECT_UNCACHED | PMD_SECT_XN,
diff --git a/arch/arm/plat-versatile/headsmp.S b/arch/arm/plat-versatile/headsmp.S
index dd703ef09b8d..b178d44e9eaa 100644
--- a/arch/arm/plat-versatile/headsmp.S
+++ b/arch/arm/plat-versatile/headsmp.S
@@ -20,7 +20,7 @@
 */
 ENTRY(versatile_secondary_startup)
        mrc     p15, 0, r0, c0, c0, 5
-        and     r0, r0, #15
+        bic     r0, #0xff000000
        adr     r4, 1f
        ldmia   r4, {r5, r6}
        sub     r4, r4, r5
diff --git a/arch/arm/vfp/entry.S b/arch/arm/vfp/entry.S
index cc926c985981..323ce1a62bbf 100644
--- a/arch/arm/vfp/entry.S
+++ b/arch/arm/vfp/entry.S
@@ -22,7 +22,7 @@
 @  IRQs disabled.
 @
 ENTRY(do_vfp)
-#ifdef CONFIG_PREEMPT
+#ifdef CONFIG_PREEMPT_COUNT
        ldr     r4, [r10, #TI_PREEMPT]  @ get preempt count
        add     r11, r4, #1             @ increment it
        str     r11, [r10, #TI_PREEMPT]
@@ -35,7 +35,7 @@ ENTRY(do_vfp)
 ENDPROC(do_vfp)
 ENTRY(vfp_null_entry)
-#ifdef CONFIG_PREEMPT
+#ifdef CONFIG_PREEMPT_COUNT
        get_thread_info r10
        ldr     r4, [r10, #TI_PREEMPT]  @ get preempt count
        sub     r11, r4, #1             @ decrement it
@@ -53,7 +53,7 @@ ENDPROC(vfp_null_entry)
        __INIT
 ENTRY(vfp_testing_entry)
-#ifdef CONFIG_PREEMPT
+#ifdef CONFIG_PREEMPT_COUNT
        get_thread_info r10
        ldr     r4, [r10, #TI_PREEMPT]  @ get preempt count
        sub     r11, r4, #1             @ decrement it
diff --git a/arch/arm/vfp/vfphw.S b/arch/arm/vfp/vfphw.S
index ea0349f63586..dd5e56f95f3f 100644
--- a/arch/arm/vfp/vfphw.S
+++ b/arch/arm/vfp/vfphw.S
@@ -168,7 +168,7 @@ vfp_hw_state_valid:
                                        @ else it's one 32-bit instruction, so
                                        @ always subtract 4 from the following
                                        @ instruction address.
-#ifdef CONFIG_PREEMPT
+#ifdef CONFIG_PREEMPT_COUNT
        get_thread_info r10
        ldr     r4, [r10, #TI_PREEMPT]  @ get preempt count
        sub     r11, r4, #1             @ decrement it
@@ -192,7 +192,7 @@ look_for_VFP_exceptions:
        @ not recognised by VFP
        DBGSTR  "not VFP"
-#ifdef CONFIG_PREEMPT
+#ifdef CONFIG_PREEMPT_COUNT
        get_thread_info r10
        ldr     r4, [r10, #TI_PREEMPT]  @ get preempt count
        sub     r11, r4, #1             @ decrement it
diff --git a/arch/arm64/include/asm/elf.h b/arch/arm64/include/asm/elf.h
index 07fea290d7c1..fe32c0e4ac01 100644
--- a/arch/arm64/include/asm/elf.h
+++ b/arch/arm64/include/asm/elf.h
@@ -26,7 +26,10 @@
 typedef unsigned long elf_greg_t;
-#define ELF_NGREG (sizeof (struct pt_regs) / sizeof(elf_greg_t))
+#define ELF_NGREG (sizeof(struct user_pt_regs) / sizeof(elf_greg_t))
+#define ELF_CORE_COPY_REGS(dest, regs)  \
+        *(struct user_pt_regs *)&(dest) = (regs)->user_regs;
 typedef elf_greg_t elf_gregset_t[ELF_NGREG];
 typedef struct user_fpsimd_state elf_fpregset_t;
diff --git a/arch/m68k/include/asm/dma-mapping.h b/arch/m68k/include/asm/dma-mapping.h
index 17f7a45948ea..3e6b8445af6a 100644
--- a/arch/m68k/include/asm/dma-mapping.h
+++ b/arch/m68k/include/asm/dma-mapping.h
@@ -21,6 +21,22 @@ extern void *dma_alloc_coherent(struct device *, size_t,
 extern void dma_free_coherent(struct device *, size_t,
                              void *, dma_addr_t);
+static inline void *dma_alloc_attrs(struct device *dev, size_t size,
+                                    dma_addr_t *dma_handle, gfp_t flag,
+                                    struct dma_attrs *attrs)
+{
+        /* attrs is not supported and ignored */
+        return dma_alloc_coherent(dev, size, dma_handle, flag);
+}
+static inline void dma_free_attrs(struct device *dev, size_t size,
+                                  void *cpu_addr, dma_addr_t dma_handle,
+                                  struct dma_attrs *attrs)
+{
+        /* attrs is not supported and ignored */
+        dma_free_coherent(dev, size, cpu_addr, dma_handle);
+}
 static inline void *dma_alloc_noncoherent(struct device *dev, size_t size,
                                          dma_addr_t *handle, gfp_t flag)
 {
diff --git a/arch/m68k/include/asm/unistd.h b/arch/m68k/include/asm/unistd.h
index 847994ce6804..f9337f614660 100644
--- a/arch/m68k/include/asm/unistd.h
+++ b/arch/m68k/include/asm/unistd.h
@@ -4,7 +4,7 @@
 #include <uapi/asm/unistd.h>
-#define NR_syscalls             348
+#define NR_syscalls             349
 #define __ARCH_WANT_OLD_READDIR
 #define __ARCH_WANT_OLD_STAT
diff --git a/arch/m68k/include/uapi/asm/unistd.h b/arch/m68k/include/uapi/asm/unistd.h
index b94bfbf90705..625f321001dc 100644
--- a/arch/m68k/include/uapi/asm/unistd.h
+++ b/arch/m68k/include/uapi/asm/unistd.h
@@ -353,5 +353,6 @@
 #define __NR_process_vm_readv   345
 #define __NR_process_vm_writev  346
 #define __NR_kcmp               347
+#define __NR_finit_module       348
 #endif /* _UAPI_ASM_M68K_UNISTD_H_ */
diff --git a/arch/m68k/kernel/syscalltable.S b/arch/m68k/kernel/syscalltable.S
index c30da5b3f2db..3f04ea0ab802 100644
--- a/arch/m68k/kernel/syscalltable.S
+++ b/arch/m68k/kernel/syscalltable.S
@@ -368,4 +368,5 @@ ENTRY(sys_call_table)
        .long sys_process_vm_readv      /* 345 */
        .long sys_process_vm_writev
        .long sys_kcmp
+        .long sys_finit_module
diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index bfb44247d7a7..eb7850b46c25 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -1865,7 +1865,7 @@ syscall_restore:
        /* Are we being ptraced? */
        ldw     TASK_FLAGS(%r1),%r19
-        ldi     (_TIF_SINGLESTEP|_TIF_BLOCKSTEP),%r2
+        ldi     _TIF_SYSCALL_TRACE_MASK,%r2
        and,COND(=)     %r19,%r2,%r0
        b,n     syscall_restore_rfi
@@ -1978,15 +1978,23 @@ syscall_restore_rfi:
        /* sr2 should be set to zero for userspace syscalls */
        STREG   %r0,TASK_PT_SR2(%r1)
-pt_regs_ok:
        LDREG   TASK_PT_GR31(%r1),%r2
-        depi    3,31,2,%r2                         /* ensure return to user mode. */
+        depi    3,31,2,%r2                 /* ensure return to user mode. */
-        STREG   %r2,TASK_PT_IAOQ0(%r1)
+        STREG   %r2,TASK_PT_IAOQ0(%r1)
        ldo     4(%r2),%r2
        STREG   %r2,TASK_PT_IAOQ1(%r1)
+        b       intr_restore
        copy    %r25,%r16
+pt_regs_ok:
+        LDREG   TASK_PT_IAOQ0(%r1),%r2
+        depi    3,31,2,%r2                 /* ensure return to user mode. */
+        STREG   %r2,TASK_PT_IAOQ0(%r1)
+        LDREG   TASK_PT_IAOQ1(%r1),%r2
+        depi    3,31,2,%r2
+        STREG   %r2,TASK_PT_IAOQ1(%r1)
        b       intr_restore
-        nop
+        copy    %r25,%r16
        .import schedule,code
 syscall_do_resched:
diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index c0b1affc06a8..0299d63cd112 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -410,11 +410,13 @@ void __init init_IRQ(void)
 {
        local_irq_disable();    /* PARANOID - should already be disabled */
        mtctl(~0UL, 23);        /* EIRR : clear all pending external intr */
-        claim_cpu_irqs();
 #ifdef CONFIG_SMP
-        if (!cpu_eiem)
+        if (!cpu_eiem) {
+                claim_cpu_irqs();
                cpu_eiem = EIEM_MASK(IPI_IRQ) | EIEM_MASK(TIMER_IRQ);
+        }
 #else
+        claim_cpu_irqs();
        cpu_eiem = EIEM_MASK(TIMER_IRQ);
 #endif
        set_eiem(cpu_eiem);     /* EIEM : enable all external intr */
diff --git a/arch/parisc/kernel/ptrace.c b/arch/parisc/kernel/ptrace.c
index 857c2f545470..534abd4936e1 100644
--- a/arch/parisc/kernel/ptrace.c
+++ b/arch/parisc/kernel/ptrace.c
@@ -26,7 +26,7 @@
 #include <asm/asm-offsets.h>
 /* PSW bits we allow the debugger to modify */
-#define USER_PSW_BITS   (PSW_N | PSW_V | PSW_CB)
+#define USER_PSW_BITS   (PSW_N | PSW_B | PSW_V | PSW_CB)
 /*
 * Called by kernel/ptrace.c when detaching..
diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
index 537996955998..fd051705a407 100644
--- a/arch/parisc/kernel/signal.c
+++ b/arch/parisc/kernel/signal.c
@@ -190,8 +190,10 @@ get_sigframe(struct k_sigaction *ka, unsigned long sp, size_t frame_size)
        DBG(1,"get_sigframe: ka = %#lx, sp = %#lx, frame_size = %#lx\n",
                        (unsigned long)ka, sp, frame_size);
        
+        /* Align alternate stack and reserve 64 bytes for the signal
+           handler's frame marker.  */
        if ((ka->sa.sa_flags & SA_ONSTACK) != 0 && ! sas_ss_flags(sp))
-                sp = current->sas_ss_sp; /* Stacks grow up! */
+                sp = (current->sas_ss_sp + 0x7f) & ~0x3f; /* Stacks grow up! */
        DBG(1,"get_sigframe: Returning sp = %#lx\n", (unsigned long)sp);
        return (void __user *) sp; /* Stacks grow up.  Fun. */
diff --git a/arch/parisc/math-emu/cnv_float.h b/arch/parisc/math-emu/cnv_float.h
index 9071e093164a..933423fa5144 100644
--- a/arch/parisc/math-emu/cnv_float.h
+++ b/arch/parisc/math-emu/cnv_float.h
@@ -347,16 +347,15 @@
    Sgl_isinexact_to_fix(sgl_value,exponent)
 #define Duint_from_sgl_mantissa(sgl_value,exponent,dresultA,dresultB)   \
-  {Sall(sgl_value) <<= SGL_EXP_LENGTH;  /*  left-justify  */            \
+  {unsigned int val = Sall(sgl_value) << SGL_EXP_LENGTH;                \
    if (exponent <= 31) {                                               \
-        Dintp1(dresultA) = 0;                                           \
+        Dintp1(dresultA) = 0;                                           \
-        Dintp2(dresultB) = (unsigned)Sall(sgl_value) >> (31 - exponent); \
+        Dintp2(dresultB) = val >> (31 - exponent);                      \
    }                                                                   \
    else {                                                              \
-        Dintp1(dresultA) = Sall(sgl_value) >> (63 - exponent);          \
+        Dintp1(dresultA) = val >> (63 - exponent);                      \
-        Dintp2(dresultB) = Sall(sgl_value) << (exponent - 31);          \
+        Dintp2(dresultB) = exponent <= 62 ? val << (exponent - 31) : 0; \
    }                                                                   \
-    Sall(sgl_value) >>= SGL_EXP_LENGTH;  /* return to original */       \
  }
 #define Duint_setzero(dresultA,dresultB)        \
diff --git a/arch/powerpc/kvm/emulate.c b/arch/powerpc/kvm/emulate.c
index b0855e5d8905..9d9cddc5b346 100644
--- a/arch/powerpc/kvm/emulate.c
+++ b/arch/powerpc/kvm/emulate.c
@@ -39,6 +39,7 @@
 #define OP_31_XOP_TRAP      4
 #define OP_31_XOP_LWZX      23
 #define OP_31_XOP_TRAP_64   68
+#define OP_31_XOP_DCBF      86
 #define OP_31_XOP_LBZX      87
 #define OP_31_XOP_STWX      151
 #define OP_31_XOP_STBX      215
@@ -374,6 +375,7 @@ int kvmppc_emulate_instruction(struct kvm_run *run, struct kvm_vcpu *vcpu)
                        emulated = kvmppc_emulate_mtspr(vcpu, sprn, rs);
                        break;
+                case OP_31_XOP_DCBF:
                case OP_31_XOP_DCBI:
                        /* Do nothing. The guest is performing dcbi because
                         * hardware DMA is not snooped by the dcache, but
diff --git a/arch/x86/kernel/cpu/perf_event.c b/arch/x86/kernel/cpu/perf_event.c
index 4428fd178bce..6774c17a5576 100644
--- a/arch/x86/kernel/cpu/perf_event.c
+++ b/arch/x86/kernel/cpu/perf_event.c
@@ -340,9 +340,6 @@ int x86_setup_perfctr(struct perf_event *event)
                /* BTS is currently only allowed for user-mode. */
                if (!attr->exclude_kernel)
                        return -EOPNOTSUPP;
-                if (!attr->exclude_guest)
-                        return -EOPNOTSUPP;
        }
        hwc->config |= config;
@@ -385,9 +382,6 @@ int x86_pmu_hw_config(struct perf_event *event)
        if (event->attr.precise_ip) {
                int precise = 0;
-                if (!event->attr.exclude_guest)
-                        return -EOPNOTSUPP;
                /* Support for constant skid */
                if (x86_pmu.pebs_active && !x86_pmu.pebs_broken) {
                        precise++;
diff --git a/arch/x86/kernel/step.c b/arch/x86/kernel/step.c
index cd3b2438a980..9b4d51d0c0d0 100644
--- a/arch/x86/kernel/step.c
+++ b/arch/x86/kernel/step.c
@@ -165,10 +165,11 @@ void set_task_blockstep(struct task_struct *task, bool on)
         * Ensure irq/preemption can't change debugctl in between.
         * Note also that both TIF_BLOCKSTEP and debugctl should
         * be changed atomically wrt preemption.
-         * FIXME: this means that set/clear TIF_BLOCKSTEP is simply
+         *
-         * wrong if task != current, SIGKILL can wakeup the stopped
+         * NOTE: this means that set/clear TIF_BLOCKSTEP is only safe if
-         * tracee and set/clear can play with the running task, this
+         * task is current or it can't be running, otherwise we can race
-         * can confuse the next __switch_to_xtra().
+         * with __switch_to_xtra(). We rely on ptrace_freeze_traced() but
+         * PTRACE_KILL is not safe.
         */
        local_irq_disable();
        debugctl = get_debugctlmsr();
diff --git a/drivers/acpi/apei/apei-base.c b/drivers/acpi/apei/apei-base.c
index 00a783661d0b..46f80e2c92f7 100644
--- a/drivers/acpi/apei/apei-base.c
+++ b/drivers/acpi/apei/apei-base.c
@@ -590,6 +590,9 @@ static int apei_check_gar(struct acpi_generic_address *reg, u64 *paddr,
        if (bit_width == 32 && bit_offset == 0 && (*paddr & 0x03) == 0 &&
            *access_bit_width < 32)
                *access_bit_width = 32;
+        else if (bit_width == 64 && bit_offset == 0 && (*paddr & 0x07) == 0 &&
+            *access_bit_width < 64)
+                *access_bit_width = 64;
        if ((bit_width + bit_offset) > *access_bit_width) {
                pr_warning(FW_BUG APEI_PFX
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index f1a5da44591d..ed9a1cc690be 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -958,6 +958,9 @@ static int acpi_processor_setup_cpuidle_cx(struct acpi_processor *pr)
                return -EINVAL;
        }
+        if (!dev)
+                return -EINVAL;
        dev->cpu = pr->id;
        if (max_cstate == 0)
@@ -1149,6 +1152,7 @@ int acpi_processor_cst_has_changed(struct acpi_processor *pr)
                }
                /* Populate Updated C-state information */
+                acpi_processor_get_power_info(pr);
                acpi_processor_setup_cpuidle_states(pr);
                /* Enable all cpuidle devices */
diff --git a/drivers/acpi/processor_perflib.c b/drivers/acpi/processor_perflib.c
index 836bfe069042..53e7ac9403a7 100644
--- a/drivers/acpi/processor_perflib.c
+++ b/drivers/acpi/processor_perflib.c
@@ -340,6 +340,13 @@ static void amd_fixup_frequency(struct acpi_processor_px *px, int i)
        if ((boot_cpu_data.x86 == 0x10 && boot_cpu_data.x86_model < 10)
            || boot_cpu_data.x86 == 0x11) {
                rdmsr(MSR_AMD_PSTATE_DEF_BASE + index, lo, hi);
+                /*
+                 * MSR C001_0064+:
+                 * Bit 63: PstateEn. Read-write. If set, the P-state is valid.
+                 */
+                if (!(hi & BIT(31)))
+                        return;
                fid = lo & 0x3f;
                did = (lo >> 6) & 7;
                if (boot_cpu_data.x86 == 0x10)
diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index 7862d17976b7..497912732566 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -53,6 +53,7 @@
 enum {
        AHCI_PCI_BAR_STA2X11    = 0,
+        AHCI_PCI_BAR_ENMOTUS    = 2,
        AHCI_PCI_BAR_STANDARD   = 5,
 };
@@ -410,6 +411,9 @@ static const struct pci_device_id ahci_pci_tbl[] = {
        { PCI_VDEVICE(ASMEDIA, 0x0611), board_ahci },   /* ASM1061 */
        { PCI_VDEVICE(ASMEDIA, 0x0612), board_ahci },   /* ASM1062 */
+        /* Enmotus */
+        { PCI_DEVICE(0x1c44, 0x8000), board_ahci },
        /* Generic, PCI class code for AHCI */
        { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
          PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff, board_ahci },
@@ -1098,9 +1102,11 @@ static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
                dev_info(&pdev->dev,
                         "PDC42819 can only drive SATA devices with this driver\n");
-        /* The Connext uses non-standard BAR */
+        /* Both Connext and Enmotus devices use non-standard BARs */
        if (pdev->vendor == PCI_VENDOR_ID_STMICRO && pdev->device == 0xCC06)
                ahci_pci_bar = AHCI_PCI_BAR_STA2X11;
+        else if (pdev->vendor == 0x1c44 && pdev->device == 0x8000)
+                ahci_pci_bar = AHCI_PCI_BAR_ENMOTUS;
        /* acquire resources */
        rc = pcim_enable_device(pdev);
diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c
index 320712a7b9ea..6cd7805e47ca 100644
--- a/drivers/ata/libahci.c
+++ b/drivers/ata/libahci.c
@@ -1951,13 +1951,13 @@ static void ahci_set_aggressive_devslp(struct ata_port *ap, bool sleep)
        /* Use the nominal value 10 ms if the read MDAT is zero,
         * the nominal value of DETO is 20 ms.
         */
-        if (dev->sata_settings[ATA_LOG_DEVSLP_VALID] &
+        if (dev->devslp_timing[ATA_LOG_DEVSLP_VALID] &
            ATA_LOG_DEVSLP_VALID_MASK) {
-                mdat = dev->sata_settings[ATA_LOG_DEVSLP_MDAT] &
+                mdat = dev->devslp_timing[ATA_LOG_DEVSLP_MDAT] &
                       ATA_LOG_DEVSLP_MDAT_MASK;
                if (!mdat)
                        mdat = 10;
-                deto = dev->sata_settings[ATA_LOG_DEVSLP_DETO];
+                deto = dev->devslp_timing[ATA_LOG_DEVSLP_DETO];
                if (!deto)
                        deto = 20;
        } else {
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 9e8b99af400d..46cd3f4c6aaa 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -2325,24 +2325,28 @@ int ata_dev_configure(struct ata_device *dev)
                        }
                }
-                /* check and mark DevSlp capability */
+                /* Check and mark DevSlp capability. Get DevSlp timing variables
-                if (ata_id_has_devslp(dev->id))
+                 * from SATA Settings page of Identify Device Data Log.
-                        dev->flags |= ATA_DFLAG_DEVSLP;
-                /* Obtain SATA Settings page from Identify Device Data Log,
-                 * which contains DevSlp timing variables etc.
-                 * Exclude old devices with ata_id_has_ncq()
                 */
-                if (ata_id_has_ncq(dev->id)) {
+                if (ata_id_has_devslp(dev->id)) {
+                        u8 sata_setting[ATA_SECT_SIZE];
+                        int i, j;
+                        dev->flags |= ATA_DFLAG_DEVSLP;
                        err_mask = ata_read_log_page(dev,
                                                     ATA_LOG_SATA_ID_DEV_DATA,
                                                     ATA_LOG_SATA_SETTINGS,
-                                                     dev->sata_settings,
+                                                     sata_setting,
                                                     1);
                        if (err_mask)
                                ata_dev_dbg(dev,
                                            "failed to get Identify Device Data, Emask 0x%x\n",
                                            err_mask);
+                        else
+                                for (i = 0; i < ATA_LOG_DEVSLP_SIZE; i++) {
+                                        j = ATA_LOG_DEVSLP_OFFSET + i;
+                                        dev->devslp_timing[i] = sata_setting[j];
+                                }
                }
                dev->cdb_len = 16;
diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c
index bf039b0e97b7..bcf4437214f5 100644
--- a/drivers/ata/libata-eh.c
+++ b/drivers/ata/libata-eh.c
@@ -2094,7 +2094,7 @@ static unsigned int ata_eh_speed_down(struct ata_device *dev,
 */
 static inline int ata_eh_worth_retry(struct ata_queued_cmd *qc)
 {
-        if (qc->flags & AC_ERR_MEDIA)
+        if (qc->err_mask & AC_ERR_MEDIA)
                return 0;       /* don't retry media errors */
        if (qc->flags & ATA_QCFLAG_IO)
                return 1;       /* otherwise retry anything from fs stack */
diff --git a/drivers/base/regmap/regmap-debugfs.c b/drivers/base/regmap/regmap-debugfs.c
index 46a213a596e2..d9a6c94ce423 100644
--- a/drivers/base/regmap/regmap-debugfs.c
+++ b/drivers/base/regmap/regmap-debugfs.c
@@ -121,8 +121,6 @@ static unsigned int regmap_debugfs_get_dump_start(struct regmap *map,
                c->max = p - 1;
                list_add_tail(&c->list,
                              &map->debugfs_off_cache);
-        } else {
-                return base;
        }
        /*
diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c
index 42d5cb0f503f..f00b059c057a 100644
--- a/drivers/base/regmap/regmap.c
+++ b/drivers/base/regmap/regmap.c
@@ -1106,7 +1106,7 @@ EXPORT_SYMBOL_GPL(regmap_raw_write);
 * @val_count: Number of registers to write
 *
 * This function is intended to be used for writing a large block of
- * data to be device either in single transfer or multiple transfer.
+ * data to the device either in single transfer or multiple transfer.
 *
 * A value of zero will be returned on success, a negative errno will
 * be returned in error cases.
diff --git a/drivers/clk/mvebu/clk-cpu.c b/drivers/clk/mvebu/clk-cpu.c
index ff004578a119..9dd2551a0a41 100644
--- a/drivers/clk/mvebu/clk-cpu.c
+++ b/drivers/clk/mvebu/clk-cpu.c
@@ -124,7 +124,7 @@ void __init of_cpu_clk_setup(struct device_node *node)
        clks = kzalloc(ncpus * sizeof(*clks), GFP_KERNEL);
        if (WARN_ON(!clks))
-                return;
+                goto clks_out;
        for_each_node_by_type(dn, "cpu") {
                struct clk_init_data init;
@@ -134,11 +134,11 @@ void __init of_cpu_clk_setup(struct device_node *node)
                int cpu, err;
                if (WARN_ON(!clk_name))
-                        return;
+                        goto bail_out;
                err = of_property_read_u32(dn, "reg", &cpu);
                if (WARN_ON(err))
-                        return;
+                        goto bail_out;
                sprintf(clk_name, "cpu%d", cpu);
                parent_clk = of_clk_get(node, 0);
@@ -167,6 +167,9 @@ void __init of_cpu_clk_setup(struct device_node *node)
        return;
 bail_out:
        kfree(clks);
+        while(ncpus--)
+                kfree(cpuclk[ncpus].clk_name);
+clks_out:
        kfree(cpuclk);
 }
diff --git a/drivers/cpufreq/Kconfig.x86 b/drivers/cpufreq/Kconfig.x86
index 934854ae5eb4..7227cd734042 100644
--- a/drivers/cpufreq/Kconfig.x86
+++ b/drivers/cpufreq/Kconfig.x86
@@ -106,7 +106,7 @@ config X86_POWERNOW_K7_ACPI
 config X86_POWERNOW_K8
        tristate "AMD Opteron/Athlon64 PowerNow!"
        select CPU_FREQ_TABLE
-        depends on ACPI && ACPI_PROCESSOR
+        depends on ACPI && ACPI_PROCESSOR && X86_ACPI_CPUFREQ
        help
          This adds the CPUFreq driver for K8/early Opteron/Athlon64 processors.
          Support for K10 and newer processors is now in acpi-cpufreq.
diff --git a/drivers/cpufreq/acpi-cpufreq.c b/drivers/cpufreq/acpi-cpufreq.c
index 0d048f6a2b23..7b0d49d78c61 100644
--- a/drivers/cpufreq/acpi-cpufreq.c
+++ b/drivers/cpufreq/acpi-cpufreq.c
@@ -1030,4 +1030,11 @@ MODULE_PARM_DESC(acpi_pstate_strict,
 late_initcall(acpi_cpufreq_init);
 module_exit(acpi_cpufreq_exit);
+static const struct x86_cpu_id acpi_cpufreq_ids[] = {
+        X86_FEATURE_MATCH(X86_FEATURE_ACPI),
+        X86_FEATURE_MATCH(X86_FEATURE_HW_PSTATE),
+        {}
+};
+MODULE_DEVICE_TABLE(x86cpu, acpi_cpufreq_ids);
 MODULE_ALIAS("acpi");
diff --git a/drivers/cpufreq/cpufreq-cpu0.c b/drivers/cpufreq/cpufreq-cpu0.c
index 52bf36d599f5..debc5a7c8db6 100644
--- a/drivers/cpufreq/cpufreq-cpu0.c
+++ b/drivers/cpufreq/cpufreq-cpu0.c
@@ -71,12 +71,15 @@ static int cpu0_set_target(struct cpufreq_policy *policy,
        }
        if (cpu_reg) {
+                rcu_read_lock();
                opp = opp_find_freq_ceil(cpu_dev, &freq_Hz);
                if (IS_ERR(opp)) {
+                        rcu_read_unlock();
                        pr_err("failed to find OPP for %ld\n", freq_Hz);
                        return PTR_ERR(opp);
                }
                volt = opp_get_voltage(opp);
+                rcu_read_unlock();
                tol = volt * voltage_tolerance / 100;
                volt_old = regulator_get_voltage(cpu_reg);
        }
@@ -236,12 +239,14 @@ static int cpu0_cpufreq_driver_init(void)
                 */
                for (i = 0; freq_table[i].frequency != CPUFREQ_TABLE_END; i++)
                        ;
+                rcu_read_lock();
                opp = opp_find_freq_exact(cpu_dev,
                                freq_table[0].frequency * 1000, true);
                min_uV = opp_get_voltage(opp);
                opp = opp_find_freq_exact(cpu_dev,
                                freq_table[i-1].frequency * 1000, true);
                max_uV = opp_get_voltage(opp);
+                rcu_read_unlock();
                ret = regulator_set_voltage_time(cpu_reg, min_uV, max_uV);
                if (ret > 0)
                        transition_latency += ret * 1000;
diff --git a/drivers/cpufreq/omap-cpufreq.c b/drivers/cpufreq/omap-cpufreq.c
index 1f3417a8322d..97102b05843f 100644
--- a/drivers/cpufreq/omap-cpufreq.c
+++ b/drivers/cpufreq/omap-cpufreq.c
@@ -110,13 +110,16 @@ static int omap_target(struct cpufreq_policy *policy,
        freq = ret;
        if (mpu_reg) {
+                rcu_read_lock();
                opp = opp_find_freq_ceil(mpu_dev, &freq);
                if (IS_ERR(opp)) {
+                        rcu_read_unlock();
                        dev_err(mpu_dev, "%s: unable to find MPU OPP for %d\n",
                                __func__, freqs.new);
                        return -EINVAL;
                }
                volt = opp_get_voltage(opp);
+                rcu_read_unlock();
                tol = volt * OPP_TOLERANCE / 100;
                volt_old = regulator_get_voltage(mpu_reg);
        }
diff --git a/drivers/devfreq/devfreq.c b/drivers/devfreq/devfreq.c
index 53766f39aadd..3b367973a802 100644
--- a/drivers/devfreq/devfreq.c
+++ b/drivers/devfreq/devfreq.c
@@ -994,6 +994,11 @@ module_exit(devfreq_exit);
 * @freq:       The frequency given to target function
 * @flags:      Flags handed from devfreq framework.
 *
+ * Locking: This function must be called under rcu_read_lock(). opp is a rcu
+ * protected pointer. The reason for the same is that the opp pointer which is
+ * returned will remain valid for use with opp_get_{voltage, freq} only while
+ * under the locked area. The pointer returned must be used prior to unlocking
+ * with rcu_read_unlock() to maintain the integrity of the pointer.
 */
 struct opp *devfreq_recommended_opp(struct device *dev, unsigned long *freq,
                                    u32 flags)
diff --git a/drivers/devfreq/exynos4_bus.c b/drivers/devfreq/exynos4_bus.c
index 80c745e83082..46d94e9e95b5 100644
--- a/drivers/devfreq/exynos4_bus.c
+++ b/drivers/devfreq/exynos4_bus.c
@@ -73,6 +73,16 @@ enum busclk_level_idx {
 #define EX4210_LV_NUM   (LV_2 + 1)
 #define EX4x12_LV_NUM   (LV_4 + 1)
+/**
+ * struct busfreq_opp_info - opp information for bus
+ * @rate:       Frequency in hertz
+ * @volt:       Voltage in microvolts corresponding to this OPP
+ */
+struct busfreq_opp_info {
+        unsigned long rate;
+        unsigned long volt;
+};
 struct busfreq_data {
        enum exynos4_busf_type type;
        struct device *dev;
@@ -80,7 +90,7 @@ struct busfreq_data {
        bool disabled;
        struct regulator *vdd_int;
        struct regulator *vdd_mif; /* Exynos4412/4212 only */
-        struct opp *curr_opp;
+        struct busfreq_opp_info curr_oppinfo;
        struct exynos4_ppmu dmc[2];
        struct notifier_block pm_notifier;
@@ -296,13 +306,14 @@ static unsigned int exynos4x12_clkdiv_sclkip[][3] = {
 };
-static int exynos4210_set_busclk(struct busfreq_data *data, struct opp *opp)
+static int exynos4210_set_busclk(struct busfreq_data *data,
+                                 struct busfreq_opp_info *oppi)
 {
        unsigned int index;
        unsigned int tmp;
        for (index = LV_0; index < EX4210_LV_NUM; index++)
-                if (opp_get_freq(opp) == exynos4210_busclk_table[index].clk)
+                if (oppi->rate == exynos4210_busclk_table[index].clk)
                        break;
        if (index == EX4210_LV_NUM)
@@ -361,13 +372,14 @@ static int exynos4210_set_busclk(struct busfreq_data *data, struct opp *opp)
        return 0;
 }
-static int exynos4x12_set_busclk(struct busfreq_data *data, struct opp *opp)
+static int exynos4x12_set_busclk(struct busfreq_data *data,
+                                 struct busfreq_opp_info *oppi)
 {
        unsigned int index;
        unsigned int tmp;
        for (index = LV_0; index < EX4x12_LV_NUM; index++)
-                if (opp_get_freq(opp) == exynos4x12_mifclk_table[index].clk)
+                if (oppi->rate == exynos4x12_mifclk_table[index].clk)
                        break;
        if (index == EX4x12_LV_NUM)
@@ -576,11 +588,12 @@ static int exynos4x12_get_intspec(unsigned long mifclk)
        return -EINVAL;
 }
-static int exynos4_bus_setvolt(struct busfreq_data *data, struct opp *opp,
+static int exynos4_bus_setvolt(struct busfreq_data *data,
-                               struct opp *oldopp)
+                               struct busfreq_opp_info *oppi,
+                               struct busfreq_opp_info *oldoppi)
 {
        int err = 0, tmp;
-        unsigned long volt = opp_get_voltage(opp);
+        unsigned long volt = oppi->volt;
        switch (data->type) {
        case TYPE_BUSF_EXYNOS4210:
@@ -595,11 +608,11 @@ static int exynos4_bus_setvolt(struct busfreq_data *data, struct opp *opp,
                if (err)
                        break;
-                tmp = exynos4x12_get_intspec(opp_get_freq(opp));
+                tmp = exynos4x12_get_intspec(oppi->rate);
                if (tmp < 0) {
                        err = tmp;
                        regulator_set_voltage(data->vdd_mif,
-                                              opp_get_voltage(oldopp),
+                                              oldoppi->volt,
                                              MAX_SAFEVOLT);
                        break;
                }
@@ -609,7 +622,7 @@ static int exynos4_bus_setvolt(struct busfreq_data *data, struct opp *opp,
                /*  Try to recover */
                if (err)
                        regulator_set_voltage(data->vdd_mif,
-                                              opp_get_voltage(oldopp),
+                                              oldoppi->volt,
                                              MAX_SAFEVOLT);
                break;
        default:
@@ -626,17 +639,26 @@ static int exynos4_bus_target(struct device *dev, unsigned long *_freq,
        struct platform_device *pdev = container_of(dev, struct platform_device,
                                                    dev);
        struct busfreq_data *data = platform_get_drvdata(pdev);
-        struct opp *opp = devfreq_recommended_opp(dev, _freq, flags);
+        struct opp *opp;
-        unsigned long freq = opp_get_freq(opp);
+        unsigned long freq;
-        unsigned long old_freq = opp_get_freq(data->curr_opp);
+        unsigned long old_freq = data->curr_oppinfo.rate;
+        struct busfreq_opp_info new_oppinfo;
-        if (IS_ERR(opp))
+        rcu_read_lock();
+        opp = devfreq_recommended_opp(dev, _freq, flags);
+        if (IS_ERR(opp)) {
+                rcu_read_unlock();
                return PTR_ERR(opp);
+        }
+        new_oppinfo.rate = opp_get_freq(opp);
+        new_oppinfo.volt = opp_get_voltage(opp);
+        rcu_read_unlock();
+        freq = new_oppinfo.rate;
        if (old_freq == freq)
                return 0;
-        dev_dbg(dev, "targetting %lukHz %luuV\n", freq, opp_get_voltage(opp));
+        dev_dbg(dev, "targetting %lukHz %luuV\n", freq, new_oppinfo.volt);
        mutex_lock(&data->lock);
@@ -644,17 +666,18 @@ static int exynos4_bus_target(struct device *dev, unsigned long *_freq,
                goto out;
        if (old_freq < freq)
-                err = exynos4_bus_setvolt(data, opp, data->curr_opp);
+                err = exynos4_bus_setvolt(data, &new_oppinfo,
+                                          &data->curr_oppinfo);
        if (err)
                goto out;
        if (old_freq != freq) {
                switch (data->type) {
                case TYPE_BUSF_EXYNOS4210:
-                        err = exynos4210_set_busclk(data, opp);
+                        err = exynos4210_set_busclk(data, &new_oppinfo);
                        break;
                case TYPE_BUSF_EXYNOS4x12:
-                        err = exynos4x12_set_busclk(data, opp);
+                        err = exynos4x12_set_busclk(data, &new_oppinfo);
                        break;
                default:
                        err = -EINVAL;
@@ -664,11 +687,12 @@ static int exynos4_bus_target(struct device *dev, unsigned long *_freq,
                goto out;
        if (old_freq > freq)
-                err = exynos4_bus_setvolt(data, opp, data->curr_opp);
+                err = exynos4_bus_setvolt(data, &new_oppinfo,
+                                          &data->curr_oppinfo);
        if (err)
                goto out;
-        data->curr_opp = opp;
+        data->curr_oppinfo = new_oppinfo;
 out:
        mutex_unlock(&data->lock);
        return err;
@@ -702,7 +726,7 @@ static int exynos4_bus_get_dev_status(struct device *dev,
        exynos4_read_ppmu(data);
        busier_dmc = exynos4_get_busier_dmc(data);
-        stat->current_frequency = opp_get_freq(data->curr_opp);
+        stat->current_frequency = data->curr_oppinfo.rate;
        if (busier_dmc)
                addr = S5P_VA_DMC1;
@@ -933,6 +957,7 @@ static int exynos4_busfreq_pm_notifier_event(struct notifier_block *this,
        struct busfreq_data *data = container_of(this, struct busfreq_data,
                                                 pm_notifier);
        struct opp *opp;
+        struct busfreq_opp_info new_oppinfo;
        unsigned long maxfreq = ULONG_MAX;
        int err = 0;
@@ -943,18 +968,29 @@ static int exynos4_busfreq_pm_notifier_event(struct notifier_block *this,
                data->disabled = true;
+                rcu_read_lock();
                opp = opp_find_freq_floor(data->dev, &maxfreq);
+                if (IS_ERR(opp)) {
+                        rcu_read_unlock();
+                        dev_err(data->dev, "%s: unable to find a min freq\n",
+                                __func__);
+                        return PTR_ERR(opp);
+                }
+                new_oppinfo.rate = opp_get_freq(opp);
+                new_oppinfo.volt = opp_get_voltage(opp);
+                rcu_read_unlock();
-                err = exynos4_bus_setvolt(data, opp, data->curr_opp);
+                err = exynos4_bus_setvolt(data, &new_oppinfo,
+                                          &data->curr_oppinfo);
                if (err)
                        goto unlock;
                switch (data->type) {
                case TYPE_BUSF_EXYNOS4210:
-                        err = exynos4210_set_busclk(data, opp);
+                        err = exynos4210_set_busclk(data, &new_oppinfo);
                        break;
                case TYPE_BUSF_EXYNOS4x12:
-                        err = exynos4x12_set_busclk(data, opp);
+                        err = exynos4x12_set_busclk(data, &new_oppinfo);
                        break;
                default:
                        err = -EINVAL;
@@ -962,7 +998,7 @@ static int exynos4_busfreq_pm_notifier_event(struct notifier_block *this,
                if (err)
                        goto unlock;
-                data->curr_opp = opp;
+                data->curr_oppinfo = new_oppinfo;
 unlock:
                mutex_unlock(&data->lock);
                if (err)
@@ -1027,13 +1063,17 @@ static int exynos4_busfreq_probe(struct platform_device *pdev)
                }
        }
+        rcu_read_lock();
        opp = opp_find_freq_floor(dev, &exynos4_devfreq_profile.initial_freq);
        if (IS_ERR(opp)) {
+                rcu_read_unlock();
                dev_err(dev, "Invalid initial frequency %lu kHz.\n",
                        exynos4_devfreq_profile.initial_freq);
                return PTR_ERR(opp);
        }
-        data->curr_opp = opp;
+        data->curr_oppinfo.rate = opp_get_freq(opp);
+        data->curr_oppinfo.volt = opp_get_voltage(opp);
+        rcu_read_unlock();
        platform_set_drvdata(pdev, data);
diff --git a/drivers/dma/imx-dma.c b/drivers/dma/imx-dma.c
index dbf0e6f8de8a..a7dcf78b1ff8 100644
--- a/drivers/dma/imx-dma.c
+++ b/drivers/dma/imx-dma.c
@@ -684,9 +684,8 @@ static int imxdma_control(struct dma_chan *chan, enum dma_ctrl_cmd cmd,
                        break;
                }
-                imxdmac->hw_chaining = 1;
+                imxdmac->hw_chaining = 0;
-                if (!imxdma_hw_chain(imxdmac))
-                        return -EINVAL;
                imxdmac->ccr_from_device = (mode | IMX_DMA_TYPE_FIFO) |
                        ((IMX_DMA_MEMSIZE_32 | IMX_DMA_TYPE_LINEAR) << 2) |
                        CCR_REN;
diff --git a/drivers/dma/ioat/dma_v3.c b/drivers/dma/ioat/dma_v3.c
index e5fc944de1f0..3e9d66920eb3 100644
--- a/drivers/dma/ioat/dma_v3.c
+++ b/drivers/dma/ioat/dma_v3.c
@@ -951,7 +951,7 @@ static int ioat_xor_val_self_test(struct ioatdma_device *device)
                        goto free_resources;
                }
        }
-        dma_sync_single_for_device(dev, dest_dma, PAGE_SIZE, DMA_TO_DEVICE);
+        dma_sync_single_for_device(dev, dest_dma, PAGE_SIZE, DMA_FROM_DEVICE);
        /* skip validate if the capability is not present */
        if (!dma_has_cap(DMA_XOR_VAL, dma_chan->device->cap_mask))
diff --git a/drivers/dma/tegra20-apb-dma.c b/drivers/dma/tegra20-apb-dma.c
index c39e61bc8172..3cad856fe67f 100644
--- a/drivers/dma/tegra20-apb-dma.c
+++ b/drivers/dma/tegra20-apb-dma.c
@@ -266,6 +266,7 @@ static struct tegra_dma_desc *tegra_dma_desc_get(
                if (async_tx_test_ack(&dma_desc->txd)) {
                        list_del(&dma_desc->node);
                        spin_unlock_irqrestore(&tdc->lock, flags);
+                        dma_desc->txd.flags = 0;
                        return dma_desc;
                }
        }
@@ -1050,7 +1051,9 @@ struct dma_async_tx_descriptor *tegra_dma_prep_dma_cyclic(
                                        TEGRA_APBDMA_AHBSEQ_WRAP_SHIFT;
        ahb_seq |= TEGRA_APBDMA_AHBSEQ_BUS_WIDTH_32;
-        csr |= TEGRA_APBDMA_CSR_FLOW | TEGRA_APBDMA_CSR_IE_EOC;
+        csr |= TEGRA_APBDMA_CSR_FLOW;
+        if (flags & DMA_PREP_INTERRUPT)
+                csr |= TEGRA_APBDMA_CSR_IE_EOC;
        csr |= tdc->dma_sconfig.slave_id << TEGRA_APBDMA_CSR_REQ_SEL_SHIFT;
        apb_seq |= TEGRA_APBDMA_APBSEQ_WRAP_WORD_1;
@@ -1095,7 +1098,8 @@ struct dma_async_tx_descriptor *tegra_dma_prep_dma_cyclic(
                mem += len;
        }
        sg_req->last_sg = true;
-        dma_desc->txd.flags = 0;
+        if (flags & DMA_CTRL_ACK)
+                dma_desc->txd.flags = DMA_CTRL_ACK;
        /*
         * Make sure that mode should not be conflicting with currently
diff --git a/drivers/gpio/gpio-mvebu.c b/drivers/gpio/gpio-mvebu.c
index 7d9bd94be8d2..6819d63cb167 100644
--- a/drivers/gpio/gpio-mvebu.c
+++ b/drivers/gpio/gpio-mvebu.c
@@ -547,7 +547,6 @@ static int mvebu_gpio_probe(struct platform_device *pdev)
        mvchip->membase = devm_request_and_ioremap(&pdev->dev, res);
        if (! mvchip->membase) {
                dev_err(&pdev->dev, "Cannot ioremap\n");
-                kfree(mvchip->chip.label);
                return -ENOMEM;
        }
@@ -557,14 +556,12 @@ static int mvebu_gpio_probe(struct platform_device *pdev)
                res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
                if (! res) {
                        dev_err(&pdev->dev, "Cannot get memory resource\n");
-                        kfree(mvchip->chip.label);
                        return -ENODEV;
                }
                mvchip->percpu_membase = devm_request_and_ioremap(&pdev->dev, res);
                if (! mvchip->percpu_membase) {
                        dev_err(&pdev->dev, "Cannot ioremap\n");
-                        kfree(mvchip->chip.label);
                        return -ENOMEM;
                }
        }
@@ -625,7 +622,6 @@ static int mvebu_gpio_probe(struct platform_device *pdev)
        mvchip->irqbase = irq_alloc_descs(-1, 0, ngpios, -1);
        if (mvchip->irqbase < 0) {
                dev_err(&pdev->dev, "no irqs\n");
-                kfree(mvchip->chip.label);
                return -ENOMEM;
        }
@@ -633,7 +629,6 @@ static int mvebu_gpio_probe(struct platform_device *pdev)
                                    mvchip->membase, handle_level_irq);
        if (! gc) {
                dev_err(&pdev->dev, "Cannot allocate generic irq_chip\n");
-                kfree(mvchip->chip.label);
                return -ENOMEM;
        }
@@ -668,7 +663,6 @@ static int mvebu_gpio_probe(struct platform_device *pdev)
                irq_remove_generic_chip(gc, IRQ_MSK(ngpios), IRQ_NOREQUEST,
                                        IRQ_LEVEL | IRQ_NOPROBE);
                kfree(gc);
-                kfree(mvchip->chip.label);
                return -ENODEV;
        }
diff --git a/drivers/gpio/gpio-samsung.c b/drivers/gpio/gpio-samsung.c
index 01f7fe955590..76be7eed79de 100644
--- a/drivers/gpio/gpio-samsung.c
+++ b/drivers/gpio/gpio-samsung.c
@@ -32,7 +32,6 @@
 #include <mach/hardware.h>
 #include <mach/map.h>
-#include <mach/regs-clock.h>
 #include <mach/regs-gpio.h>
 #include <plat/cpu.h>
@@ -446,7 +445,7 @@ static struct samsung_gpio_cfg s3c24xx_gpiocfg_banka = {
 };
 #endif
-#if defined(CONFIG_ARCH_EXYNOS4) || defined(CONFIG_ARCH_EXYNOS5)
+#if defined(CONFIG_ARCH_EXYNOS4) || defined(CONFIG_SOC_EXYNOS5250)
 static struct samsung_gpio_cfg exynos_gpio_cfg = {
        .set_pull       = exynos_gpio_setpull,
        .get_pull       = exynos_gpio_getpull,
@@ -2446,7 +2445,7 @@ static struct samsung_gpio_chip exynos4_gpios_3[] = {
 };
 #endif
-#ifdef CONFIG_ARCH_EXYNOS5
+#ifdef CONFIG_SOC_EXYNOS5250
 static struct samsung_gpio_chip exynos5_gpios_1[] = {
        {
                .chip   = {
@@ -2614,7 +2613,7 @@ static struct samsung_gpio_chip exynos5_gpios_1[] = {
 };
 #endif
-#ifdef CONFIG_ARCH_EXYNOS5
+#ifdef CONFIG_SOC_EXYNOS5250
 static struct samsung_gpio_chip exynos5_gpios_2[] = {
        {
                .chip   = {
@@ -2675,7 +2674,7 @@ static struct samsung_gpio_chip exynos5_gpios_2[] = {
 };
 #endif
-#ifdef CONFIG_ARCH_EXYNOS5
+#ifdef CONFIG_SOC_EXYNOS5250
 static struct samsung_gpio_chip exynos5_gpios_3[] = {
        {
                .chip   = {
@@ -2711,7 +2710,7 @@ static struct samsung_gpio_chip exynos5_gpios_3[] = {
 };
 #endif
-#ifdef CONFIG_ARCH_EXYNOS5
+#ifdef CONFIG_SOC_EXYNOS5250
 static struct samsung_gpio_chip exynos5_gpios_4[] = {
        {
                .chip   = {
@@ -3010,7 +3009,7 @@ static __init int samsung_gpiolib_init(void)
        int i, nr_chips;
        int group = 0;
-#ifdef CONFIG_PINCTRL_SAMSUNG
+#if defined(CONFIG_PINCTRL_EXYNOS) || defined(CONFIG_PINCTRL_EXYNOS5440)
        /*
        * This gpio driver includes support for device tree support and there
        * are platforms using it. In order to maintain compatibility with those
@@ -3026,6 +3025,7 @@ static __init int samsung_gpiolib_init(void)
        static const struct of_device_id exynos_pinctrl_ids[] = {
                { .compatible = "samsung,pinctrl-exynos4210", },
                { .compatible = "samsung,pinctrl-exynos4x12", },
+                { .compatible = "samsung,pinctrl-exynos5440", },
        };
        for_each_matching_node(pctrl_np, exynos_pinctrl_ids)
                if (pctrl_np && of_device_is_available(pctrl_np))
diff --git a/drivers/i2c/busses/i2c-designware-core.c b/drivers/i2c/busses/i2c-designware-core.c
index cbba7db9ad59..f5258c205de5 100644
--- a/drivers/i2c/busses/i2c-designware-core.c
+++ b/drivers/i2c/busses/i2c-designware-core.c
@@ -34,6 +34,7 @@
 #include <linux/io.h>
 #include <linux/pm_runtime.h>
 #include <linux/delay.h>
+#include <linux/module.h>
 #include "i2c-designware-core.h"
 /*
@@ -725,3 +726,6 @@ u32 i2c_dw_read_comp_param(struct dw_i2c_dev *dev)
        return dw_readl(dev, DW_IC_COMP_PARAM_1);
 }
 EXPORT_SYMBOL_GPL(i2c_dw_read_comp_param);
+MODULE_DESCRIPTION("Synopsys DesignWare I2C bus adapter core");
+MODULE_LICENSE("GPL");
diff --git a/drivers/i2c/busses/i2c-mxs.c b/drivers/i2c/busses/i2c-mxs.c
index 1b1a936eccc9..d6abaf2cf2e3 100644
--- a/drivers/i2c/busses/i2c-mxs.c
+++ b/drivers/i2c/busses/i2c-mxs.c
@@ -127,7 +127,7 @@ struct mxs_i2c_dev {
        struct device *dev;
        void __iomem *regs;
        struct completion cmd_complete;
-        u32 cmd_err;
+        int cmd_err;
        struct i2c_adapter adapter;
        const struct mxs_i2c_speed_config *speed;
@@ -316,7 +316,7 @@ static int mxs_i2c_xfer_msg(struct i2c_adapter *adap, struct i2c_msg *msg,
        if (msg->len == 0)
                return -EINVAL;
-        init_completion(&i2c->cmd_complete);
+        INIT_COMPLETION(i2c->cmd_complete);
        i2c->cmd_err = 0;
        ret = mxs_i2c_dma_setup_xfer(adap, msg, flags);
@@ -473,6 +473,8 @@ static int mxs_i2c_probe(struct platform_device *pdev)
        i2c->dev = dev;
        i2c->speed = &mxs_i2c_95kHz_config;
+        init_completion(&i2c->cmd_complete);
        if (dev->of_node) {
                err = mxs_i2c_get_ofdata(i2c);
                if (err)
diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c
index 20d41bfa7c19..4cc2f0528c88 100644
--- a/drivers/i2c/busses/i2c-omap.c
+++ b/drivers/i2c/busses/i2c-omap.c
@@ -803,7 +803,7 @@ static int errata_omap3_i462(struct omap_i2c_dev *dev)
                        if (stat & OMAP_I2C_STAT_AL) {
                                dev_err(dev->dev, "Arbitration lost\n");
                                dev->cmd_err |= OMAP_I2C_STAT_AL;
-                                omap_i2c_ack_stat(dev, OMAP_I2C_STAT_NACK);
+                                omap_i2c_ack_stat(dev, OMAP_I2C_STAT_AL);
                        }
                        return -EIO;
@@ -963,7 +963,7 @@ omap_i2c_isr_thread(int this_irq, void *dev_id)
                                i2c_omap_errata_i207(dev, stat);
                        omap_i2c_ack_stat(dev, OMAP_I2C_STAT_RDR);
-                        break;
+                        continue;
                }
                if (stat & OMAP_I2C_STAT_RRDY) {
@@ -989,7 +989,7 @@ omap_i2c_isr_thread(int this_irq, void *dev_id)
                                break;
                        omap_i2c_ack_stat(dev, OMAP_I2C_STAT_XDR);
-                        break;
+                        continue;
                }
                if (stat & OMAP_I2C_STAT_XRDY) {
diff --git a/drivers/i2c/busses/i2c-sirf.c b/drivers/i2c/busses/i2c-sirf.c
index 3f1818b87974..e03381aee34f 100644
--- a/drivers/i2c/busses/i2c-sirf.c
+++ b/drivers/i2c/busses/i2c-sirf.c
@@ -12,6 +12,7 @@
 #include <linux/slab.h>
 #include <linux/platform_device.h>
 #include <linux/i2c.h>
+#include <linux/of_i2c.h>
 #include <linux/clk.h>
 #include <linux/err.h>
 #include <linux/io.h>
@@ -328,6 +329,7 @@ static int i2c_sirfsoc_probe(struct platform_device *pdev)
        adap->algo = &i2c_sirfsoc_algo;
        adap->algo_data = siic;
+        adap->dev.of_node = pdev->dev.of_node;
        adap->dev.parent = &pdev->dev;
        adap->nr = pdev->id;
@@ -371,6 +373,8 @@ static int i2c_sirfsoc_probe(struct platform_device *pdev)
        clk_disable(clk);
+        of_i2c_register_devices(adap);
        dev_info(&pdev->dev, " I2C adapter ready to operate\n");
        return 0;
diff --git a/drivers/i2c/muxes/i2c-mux-pinctrl.c b/drivers/i2c/muxes/i2c-mux-pinctrl.c
index 1e44d04d1b22..a43c0ce5e3d8 100644
--- a/drivers/i2c/muxes/i2c-mux-pinctrl.c
+++ b/drivers/i2c/muxes/i2c-mux-pinctrl.c
@@ -167,7 +167,7 @@ static int i2c_mux_pinctrl_probe(struct platform_device *pdev)
        }
        mux->busses = devm_kzalloc(&pdev->dev,
-                                   sizeof(mux->busses) * mux->pdata->bus_count,
+                                   sizeof(*mux->busses) * mux->pdata->bus_count,
                                   GFP_KERNEL);
        if (!mux->busses) {
                dev_err(&pdev->dev, "Cannot allocate busses\n");
diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c
index 4ba384f1ab54..2df9414a72f7 100644
--- a/drivers/idle/intel_idle.c
+++ b/drivers/idle/intel_idle.c
@@ -448,8 +448,6 @@ static int intel_idle_probe(void)
        else
                on_each_cpu(__setup_broadcast_timer, (void *)true, 1);
-        register_cpu_notifier(&cpu_hotplug_notifier);
        pr_debug(PREFIX "v" INTEL_IDLE_VERSION
                " model 0x%X\n", boot_cpu_data.x86_model);
@@ -612,6 +610,7 @@ static int __init intel_idle_init(void)
                        return retval;
                }
        }
+        register_cpu_notifier(&cpu_hotplug_notifier);
        return 0;
 }
diff --git a/drivers/media/i2c/m5mols/m5mols_core.c b/drivers/media/i2c/m5mols/m5mols_core.c
index 8a8d42fe2633..d4e7567b367c 100644
--- a/drivers/media/i2c/m5mols/m5mols_core.c
+++ b/drivers/media/i2c/m5mols/m5mols_core.c
@@ -556,7 +556,7 @@ static int m5mols_get_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh,
        mutex_lock(&info->lock);
        format = __find_format(info, fh, fmt->which, info->res_type);
-        if (!format)
+        if (format)
                fmt->format = *format;
        else
                ret = -EINVAL;
diff --git a/drivers/media/platform/coda.c b/drivers/media/platform/coda.c
index 1cf8293c0fb0..4a980e029ca7 100644
--- a/drivers/media/platform/coda.c
+++ b/drivers/media/platform/coda.c
@@ -23,8 +23,8 @@
 #include <linux/slab.h>
 #include <linux/videodev2.h>
 #include <linux/of.h>
+#include <linux/platform_data/imx-iram.h>
-#include <mach/iram.h>
 #include <media/v4l2-ctrls.h>
 #include <media/v4l2-device.h>
 #include <media/v4l2-ioctl.h>
diff --git a/drivers/media/platform/omap3isp/ispvideo.c b/drivers/media/platform/omap3isp/ispvideo.c
index e0d73a642186..8dac17511e61 100644
--- a/drivers/media/platform/omap3isp/ispvideo.c
+++ b/drivers/media/platform/omap3isp/ispvideo.c
@@ -35,9 +35,6 @@
 #include <linux/vmalloc.h>
 #include <media/v4l2-dev.h>
 #include <media/v4l2-ioctl.h>
-#include <plat/iommu.h>
-#include <plat/iovmm.h>
-#include <plat/omap-pm.h>
 #include "ispvideo.h"
 #include "isp.h"
diff --git a/drivers/media/platform/s5p-fimc/fimc-mdevice.c b/drivers/media/platform/s5p-fimc/fimc-mdevice.c
index 4ab99f3a7b09..b4a68ecf0ca7 100644
--- a/drivers/media/platform/s5p-fimc/fimc-mdevice.c
+++ b/drivers/media/platform/s5p-fimc/fimc-mdevice.c
@@ -593,7 +593,7 @@ static int __fimc_md_create_flite_source_links(struct fimc_md *fmd)
 {
        struct media_entity *source, *sink;
        unsigned int flags = MEDIA_LNK_FL_ENABLED;
-        int i, ret;
+        int i, ret = 0;
        for (i = 0; i < FIMC_LITE_MAX_DEVS; i++) {
                struct fimc_lite *fimc = fmd->fimc_lite[i];
diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc.c b/drivers/media/platform/s5p-mfc/s5p_mfc.c
index 379f57433711..681bc6ba149d 100644
--- a/drivers/media/platform/s5p-mfc/s5p_mfc.c
+++ b/drivers/media/platform/s5p-mfc/s5p_mfc.c
@@ -412,62 +412,48 @@ leave_handle_frame:
 }
 /* Error handling for interrupt */
-static void s5p_mfc_handle_error(struct s5p_mfc_ctx *ctx,
+static void s5p_mfc_handle_error(struct s5p_mfc_dev *dev,
-                                 unsigned int reason, unsigned int err)
+                struct s5p_mfc_ctx *ctx, unsigned int reason, unsigned int err)
 {
-        struct s5p_mfc_dev *dev;
        unsigned long flags;
-        /* If no context is available then all necessary
-         * processing has been done. */
-        if (ctx == NULL)
-                return;
-        dev = ctx->dev;
        mfc_err("Interrupt Error: %08x\n", err);
-        s5p_mfc_hw_call(dev->mfc_ops, clear_int_flags, dev);
-        wake_up_dev(dev, reason, err);
-        /* Error recovery is dependent on the state of context */
+        if (ctx != NULL) {
-        switch (ctx->state) {
+                /* Error recovery is dependent on the state of context */
-        case MFCINST_INIT:
+                switch (ctx->state) {
-                /* This error had to happen while acquireing instance */
+                case MFCINST_RES_CHANGE_INIT:
-        case MFCINST_GOT_INST:
+                case MFCINST_RES_CHANGE_FLUSH:
-                /* This error had to happen while parsing the header */
+                case MFCINST_RES_CHANGE_END:
-        case MFCINST_HEAD_PARSED:
+                case MFCINST_FINISHING:
-                /* This error had to happen while setting dst buffers */
+                case MFCINST_FINISHED:
-        case MFCINST_RETURN_INST:
+                case MFCINST_RUNNING:
-                /* This error had to happen while releasing instance */
+                        /* It is higly probable that an error occured
-                clear_work_bit(ctx);
+                         * while decoding a frame */
-                wake_up_ctx(ctx, reason, err);
+                        clear_work_bit(ctx);
-                if (test_and_clear_bit(0, &dev->hw_lock) == 0)
+                        ctx->state = MFCINST_ERROR;
-                        BUG();
+                        /* Mark all dst buffers as having an error */
-                s5p_mfc_clock_off();
+                        spin_lock_irqsave(&dev->irqlock, flags);
-                ctx->state = MFCINST_ERROR;
+                        s5p_mfc_hw_call(dev->mfc_ops, cleanup_queue,
-                break;
+                                                &ctx->dst_queue, &ctx->vq_dst);
-        case MFCINST_FINISHING:
+                        /* Mark all src buffers as having an error */
-        case MFCINST_FINISHED:
+                        s5p_mfc_hw_call(dev->mfc_ops, cleanup_queue,
-        case MFCINST_RUNNING:
+                                                &ctx->src_queue, &ctx->vq_src);
-                /* It is higly probable that an error occured
+                        spin_unlock_irqrestore(&dev->irqlock, flags);
-                 * while decoding a frame */
+                        wake_up_ctx(ctx, reason, err);
-                clear_work_bit(ctx);
+                        break;
-                ctx->state = MFCINST_ERROR;
+                default:
-                /* Mark all dst buffers as having an error */
+                        clear_work_bit(ctx);
-                spin_lock_irqsave(&dev->irqlock, flags);
+                        ctx->state = MFCINST_ERROR;
-                s5p_mfc_hw_call(dev->mfc_ops, cleanup_queue, &ctx->dst_queue,
+                        wake_up_ctx(ctx, reason, err);
-                                &ctx->vq_dst);
+                        break;
-                /* Mark all src buffers as having an error */
+                }
-                s5p_mfc_hw_call(dev->mfc_ops, cleanup_queue, &ctx->src_queue,
-                                &ctx->vq_src);
-                spin_unlock_irqrestore(&dev->irqlock, flags);
-                if (test_and_clear_bit(0, &dev->hw_lock) == 0)
-                        BUG();
-                s5p_mfc_clock_off();
-                break;
-        default:
-                mfc_err("Encountered an error interrupt which had not been handled\n");
-                break;
        }
+        if (test_and_clear_bit(0, &dev->hw_lock) == 0)
+                BUG();
+        s5p_mfc_hw_call(dev->mfc_ops, clear_int_flags, dev);
+        s5p_mfc_clock_off();
+        wake_up_dev(dev, reason, err);
        return;
 }
@@ -632,7 +618,7 @@ static irqreturn_t s5p_mfc_irq(int irq, void *priv)
                                dev->warn_start)
                        s5p_mfc_handle_frame(ctx, reason, err);
                else
-                        s5p_mfc_handle_error(ctx, reason, err);
+                        s5p_mfc_handle_error(dev, ctx, reason, err);
                clear_bit(0, &dev->enter_suspend);
                break;
diff --git a/drivers/media/usb/gspca/kinect.c b/drivers/media/usb/gspca/kinect.c
index 40ad6687ee5d..3773a8a745df 100644
--- a/drivers/media/usb/gspca/kinect.c
+++ b/drivers/media/usb/gspca/kinect.c
@@ -381,6 +381,7 @@ static const struct sd_desc sd_desc = {
 /* -- module initialisation -- */
 static const struct usb_device_id device_table[] = {
        {USB_DEVICE(0x045e, 0x02ae)},
+        {USB_DEVICE(0x045e, 0x02bf)},
        {}
 };
diff --git a/drivers/media/usb/gspca/sonixb.c b/drivers/media/usb/gspca/sonixb.c
index 70511d5f9538..1220340e7602 100644
--- a/drivers/media/usb/gspca/sonixb.c
+++ b/drivers/media/usb/gspca/sonixb.c
@@ -496,7 +496,7 @@ static void reg_w(struct gspca_dev *gspca_dev,
        }
 }
-static void i2c_w(struct gspca_dev *gspca_dev, const __u8 *buffer)
+static void i2c_w(struct gspca_dev *gspca_dev, const u8 *buf)
 {
        int retry = 60;
@@ -504,16 +504,19 @@ static void i2c_w(struct gspca_dev *gspca_dev, const __u8 *buffer)
                return;
        /* is i2c ready */
-        reg_w(gspca_dev, 0x08, buffer, 8);
+        reg_w(gspca_dev, 0x08, buf, 8);
        while (retry--) {
                if (gspca_dev->usb_err < 0)
                        return;
-                msleep(10);
+                msleep(1);
                reg_r(gspca_dev, 0x08);
                if (gspca_dev->usb_buf[0] & 0x04) {
                        if (gspca_dev->usb_buf[0] & 0x08) {
                                dev_err(gspca_dev->v4l2_dev.dev,
-                                        "i2c write error\n");
+                                        "i2c error writing %02x %02x %02x %02x"
+                                        " %02x %02x %02x %02x\n",
+                                        buf[0], buf[1], buf[2], buf[3],
+                                        buf[4], buf[5], buf[6], buf[7]);
                                gspca_dev->usb_err = -EIO;
                        }
                        return;
@@ -530,7 +533,7 @@ static void i2c_w_vector(struct gspca_dev *gspca_dev,
        for (;;) {
                if (gspca_dev->usb_err < 0)
                        return;
-                reg_w(gspca_dev, 0x08, *buffer, 8);
+                i2c_w(gspca_dev, *buffer);
                len -= 8;
                if (len <= 0)
                        break;
diff --git a/drivers/media/usb/gspca/sonixj.c b/drivers/media/usb/gspca/sonixj.c
index 5a86047b846f..36307a9028a9 100644
--- a/drivers/media/usb/gspca/sonixj.c
+++ b/drivers/media/usb/gspca/sonixj.c
@@ -1550,6 +1550,7 @@ static void i2c_w1(struct gspca_dev *gspca_dev, u8 reg, u8 val)
                        0,
                        gspca_dev->usb_buf, 8,
                        500);
+        msleep(2);
        if (ret < 0) {
                pr_err("i2c_w1 err %d\n", ret);
                gspca_dev->usb_err = ret;
diff --git a/drivers/media/usb/uvc/uvc_ctrl.c b/drivers/media/usb/uvc/uvc_ctrl.c
index 2bb7613ddebb..d5baab17a5ef 100644
--- a/drivers/media/usb/uvc/uvc_ctrl.c
+++ b/drivers/media/usb/uvc/uvc_ctrl.c
@@ -1431,8 +1431,10 @@ int uvc_ctrl_set(struct uvc_video_chain *chain,
        int ret;
        ctrl = uvc_find_control(chain, xctrl->id, &mapping);
-        if (ctrl == NULL || (ctrl->info.flags & UVC_CTRL_FLAG_SET_CUR) == 0)
+        if (ctrl == NULL)
                return -EINVAL;
+        if (!(ctrl->info.flags & UVC_CTRL_FLAG_SET_CUR))
+                return -EACCES;
        /* Clamp out of range values. */
        switch (mapping->v4l2_type) {
diff --git a/drivers/media/usb/uvc/uvc_v4l2.c b/drivers/media/usb/uvc/uvc_v4l2.c
index f2ee8c6b0d8d..68d59b527492 100644
--- a/drivers/media/usb/uvc/uvc_v4l2.c
+++ b/drivers/media/usb/uvc/uvc_v4l2.c
@@ -657,8 +657,7 @@ static long uvc_v4l2_do_ioctl(struct file *file, unsigned int cmd, void *arg)
                        ret = uvc_ctrl_get(chain, ctrl);
                        if (ret < 0) {
                                uvc_ctrl_rollback(handle);
-                                ctrls->error_idx = ret == -ENOENT
+                                ctrls->error_idx = i;
-                                                 ? ctrls->count : i;
                                return ret;
                        }
                }
@@ -686,8 +685,7 @@ static long uvc_v4l2_do_ioctl(struct file *file, unsigned int cmd, void *arg)
                        ret = uvc_ctrl_set(chain, ctrl);
                        if (ret < 0) {
                                uvc_ctrl_rollback(handle);
-                                ctrls->error_idx = (ret == -ENOENT &&
+                                ctrls->error_idx = cmd == VIDIOC_S_EXT_CTRLS
-                                                    cmd == VIDIOC_S_EXT_CTRLS)
                                                 ? ctrls->count : i;
                                return ret;
                        }
diff --git a/drivers/media/v4l2-core/videobuf2-core.c b/drivers/media/v4l2-core/videobuf2-core.c
index 9f81be23a81f..e02c4797b1c6 100644
--- a/drivers/media/v4l2-core/videobuf2-core.c
+++ b/drivers/media/v4l2-core/videobuf2-core.c
@@ -921,8 +921,10 @@ static void __fill_vb2_buffer(struct vb2_buffer *vb, const struct v4l2_buffer *b
                 * In videobuf we use our internal V4l2_planes struct for
                 * single-planar buffers as well, for simplicity.
                 */
-                if (V4L2_TYPE_IS_OUTPUT(b->type))
+                if (V4L2_TYPE_IS_OUTPUT(b->type)) {
                        v4l2_planes[0].bytesused = b->bytesused;
+                        v4l2_planes[0].data_offset = 0;
+                }
                if (b->memory == V4L2_MEMORY_USERPTR) {
                        v4l2_planes[0].m.userptr = b->m.userptr;
diff --git a/drivers/mfd/vexpress-sysreg.c b/drivers/mfd/vexpress-sysreg.c
index e5d8f63b252a..77048b18439e 100644
--- a/drivers/mfd/vexpress-sysreg.c
+++ b/drivers/mfd/vexpress-sysreg.c
@@ -313,19 +313,11 @@ static void vexpress_sysreg_config_complete(unsigned long data)
 }
-void __init vexpress_sysreg_early_init(void __iomem *base)
+void __init vexpress_sysreg_setup(struct device_node *node)
 {
-        struct device_node *node = of_find_compatible_node(NULL, NULL,
+        if (WARN_ON(!vexpress_sysreg_base))
-                        "arm,vexpress-sysreg");
-        if (node)
-                base = of_iomap(node, 0);
-        if (WARN_ON(!base))
                return;
-        vexpress_sysreg_base = base;
        if (readl(vexpress_sysreg_base + SYS_MISC) & SYS_MISC_MASTERSITE)
                vexpress_master_site = VEXPRESS_SITE_DB2;
        else
@@ -336,9 +328,23 @@ void __init vexpress_sysreg_early_init(void __iomem *base)
        WARN_ON(!vexpress_sysreg_config_bridge);
 }
+void __init vexpress_sysreg_early_init(void __iomem *base)
+{
+        vexpress_sysreg_base = base;
+        vexpress_sysreg_setup(NULL);
+}
 void __init vexpress_sysreg_of_early_init(void)
 {
-        vexpress_sysreg_early_init(NULL);
+        struct device_node *node = of_find_compatible_node(NULL, NULL,
+                        "arm,vexpress-sysreg");
+        if (node) {
+                vexpress_sysreg_base = of_iomap(node, 0);
+                vexpress_sysreg_setup(node);
+        } else {
+                pr_info("vexpress-sysreg: No Device Tree node found.");
+        }
 }
@@ -426,9 +432,11 @@ static int vexpress_sysreg_probe(struct platform_device *pdev)
                return -EBUSY;
        }
-        if (!vexpress_sysreg_base)
+        if (!vexpress_sysreg_base) {
                vexpress_sysreg_base = devm_ioremap(&pdev->dev, res->start,
                                resource_size(res));
+                vexpress_sysreg_setup(pdev->dev.of_node);
+        }
        if (!vexpress_sysreg_base) {
                dev_err(&pdev->dev, "Failed to obtain base address!\n");
diff --git a/drivers/misc/ti-st/st_kim.c b/drivers/misc/ti-st/st_kim.c
index 9ff942a346ed..83269f1d16e3 100644
--- a/drivers/misc/ti-st/st_kim.c
+++ b/drivers/misc/ti-st/st_kim.c
@@ -468,6 +468,11 @@ long st_kim_start(void *kim_data)
                if (pdata->chip_enable)
                        pdata->chip_enable(kim_gdata);
+                /* Configure BT nShutdown to HIGH state */
+                gpio_set_value(kim_gdata->nshutdown, GPIO_LOW);
+                mdelay(5);      /* FIXME: a proper toggle */
+                gpio_set_value(kim_gdata->nshutdown, GPIO_HIGH);
+                mdelay(100);
                /* re-initialize the completion */
                INIT_COMPLETION(kim_gdata->ldisc_installed);
                /* send notification to UIM */
@@ -509,7 +514,8 @@ long st_kim_start(void *kim_data)
 *      (b) upon failure to either install ldisc or download firmware.
 *      The function is responsible to (a) notify UIM about un-installation,
 *      (b) flush UART if the ldisc was installed.
- *      (c) invoke platform's chip disabling routine.
+ *      (c) reset BT_EN - pull down nshutdown at the end.
+ *      (d) invoke platform's chip disabling routine.
 */
 long st_kim_stop(void *kim_data)
 {
@@ -541,6 +547,13 @@ long st_kim_stop(void *kim_data)
                err = -ETIMEDOUT;
        }
+        /* By default configure BT nShutdown to LOW state */
+        gpio_set_value(kim_gdata->nshutdown, GPIO_LOW);
+        mdelay(1);
+        gpio_set_value(kim_gdata->nshutdown, GPIO_HIGH);
+        mdelay(1);
+        gpio_set_value(kim_gdata->nshutdown, GPIO_LOW);
        /* platform specific disable */
        if (pdata->chip_disable)
                pdata->chip_disable(kim_gdata);
@@ -733,6 +746,20 @@ static int kim_probe(struct platform_device *pdev)
        /* refer to itself */
        kim_gdata->core_data->kim_data = kim_gdata;
+        /* Claim the chip enable nShutdown gpio from the system */
+        kim_gdata->nshutdown = pdata->nshutdown_gpio;
+        err = gpio_request(kim_gdata->nshutdown, "kim");
+        if (unlikely(err)) {
+                pr_err(" gpio %ld request failed ", kim_gdata->nshutdown);
+                return err;
+        }
+        /* Configure nShutdown GPIO as output=0 */
+        err = gpio_direction_output(kim_gdata->nshutdown, 0);
+        if (unlikely(err)) {
+                pr_err(" unable to configure gpio %ld", kim_gdata->nshutdown);
+                return err;
+        }
        /* get reference of pdev for request_firmware
         */
        kim_gdata->kim_pdev = pdev;
@@ -779,10 +806,18 @@ err_core_init:
 static int kim_remove(struct platform_device *pdev)
 {
+        /* free the GPIOs requested */
+        struct ti_st_plat_data  *pdata = pdev->dev.platform_data;
        struct kim_data_s       *kim_gdata;
        kim_gdata = dev_get_drvdata(&pdev->dev);
+        /* Free the Bluetooth/FM/GPIO
+         * nShutdown gpio from the system
+         */
+        gpio_free(pdata->nshutdown_gpio);
+        pr_info("nshutdown GPIO Freed");
        debugfs_remove_recursive(kim_debugfs_dir);
        sysfs_remove_group(&pdev->dev.kobj, &uim_attr_grp);
        pr_info("sysfs entries removed");
diff --git a/drivers/mmc/host/mvsdio.c b/drivers/mmc/host/mvsdio.c
index de4c20b3936c..f8dd36102949 100644
--- a/drivers/mmc/host/mvsdio.c
+++ b/drivers/mmc/host/mvsdio.c
@@ -50,8 +50,6 @@ struct mvsd_host {
        struct timer_list timer;
        struct mmc_host *mmc;
        struct device *dev;
-        struct resource *res;
-        int irq;
        struct clk *clk;
        int gpio_card_detect;
        int gpio_write_protect;
@@ -718,10 +716,6 @@ static int __init mvsd_probe(struct platform_device *pdev)
        if (!r || irq < 0 || !mvsd_data)
                return -ENXIO;
-        r = request_mem_region(r->start, SZ_1K, DRIVER_NAME);
-        if (!r)
-                return -EBUSY;
        mmc = mmc_alloc_host(sizeof(struct mvsd_host), &pdev->dev);
        if (!mmc) {
                ret = -ENOMEM;
@@ -731,8 +725,8 @@ static int __init mvsd_probe(struct platform_device *pdev)
        host = mmc_priv(mmc);
        host->mmc = mmc;
        host->dev = &pdev->dev;
-        host->res = r;
        host->base_clock = mvsd_data->clock / 2;
+        host->clk = ERR_PTR(-EINVAL);
        mmc->ops = &mvsd_ops;
@@ -752,7 +746,7 @@ static int __init mvsd_probe(struct platform_device *pdev)
        spin_lock_init(&host->lock);
-        host->base = ioremap(r->start, SZ_4K);
+        host->base = devm_request_and_ioremap(&pdev->dev, r);
        if (!host->base) {
                ret = -ENOMEM;
                goto out;
@@ -765,44 +759,45 @@ static int __init mvsd_probe(struct platform_device *pdev)
        mvsd_power_down(host);
-        ret = request_irq(irq, mvsd_irq, 0, DRIVER_NAME, host);
+        ret = devm_request_irq(&pdev->dev, irq, mvsd_irq, 0, DRIVER_NAME, host);
        if (ret) {
                pr_err("%s: cannot assign irq %d\n", DRIVER_NAME, irq);
                goto out;
-        } else
+        }
-                host->irq = irq;
        /* Not all platforms can gate the clock, so it is not
           an error if the clock does not exists. */
-        host->clk = clk_get(&pdev->dev, NULL);
+        host->clk = devm_clk_get(&pdev->dev, NULL);
-        if (!IS_ERR(host->clk)) {
+        if (!IS_ERR(host->clk))
                clk_prepare_enable(host->clk);
-        }
        if (mvsd_data->gpio_card_detect) {
-                ret = gpio_request(mvsd_data->gpio_card_detect,
+                ret = devm_gpio_request_one(&pdev->dev,
-                                   DRIVER_NAME " cd");
+                                            mvsd_data->gpio_card_detect,
+                                            GPIOF_IN, DRIVER_NAME " cd");
                if (ret == 0) {
-                        gpio_direction_input(mvsd_data->gpio_card_detect);
                        irq = gpio_to_irq(mvsd_data->gpio_card_detect);
-                        ret = request_irq(irq, mvsd_card_detect_irq,
+                        ret = devm_request_irq(&pdev->dev, irq,
-                                          IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING,
+                                               mvsd_card_detect_irq,
-                                          DRIVER_NAME " cd", host);
+                                               IRQ_TYPE_EDGE_RISING |
+                                               IRQ_TYPE_EDGE_FALLING,
+                                               DRIVER_NAME " cd", host);
                        if (ret == 0)
                                host->gpio_card_detect =
                                        mvsd_data->gpio_card_detect;
                        else
-                                gpio_free(mvsd_data->gpio_card_detect);
+                                devm_gpio_free(&pdev->dev,
+                                               mvsd_data->gpio_card_detect);
                }
        }
        if (!host->gpio_card_detect)
                mmc->caps |= MMC_CAP_NEEDS_POLL;
        if (mvsd_data->gpio_write_protect) {
-                ret = gpio_request(mvsd_data->gpio_write_protect,
+                ret = devm_gpio_request_one(&pdev->dev,
-                                   DRIVER_NAME " wp");
+                                            mvsd_data->gpio_write_protect,
+                                            GPIOF_IN, DRIVER_NAME " wp");
                if (ret == 0) {
-                        gpio_direction_input(mvsd_data->gpio_write_protect);
                        host->gpio_write_protect =
                                mvsd_data->gpio_write_protect;
                }
@@ -824,26 +819,11 @@ static int __init mvsd_probe(struct platform_device *pdev)
        return 0;
 out:
-        if (host) {
+        if (mmc) {
-                if (host->irq)
+                if (!IS_ERR(host->clk))
-                        free_irq(host->irq, host);
-                if (host->gpio_card_detect) {
-                        free_irq(gpio_to_irq(host->gpio_card_detect), host);
-                        gpio_free(host->gpio_card_detect);
-                }
-                if (host->gpio_write_protect)
-                        gpio_free(host->gpio_write_protect);
-                if (host->base)
-                        iounmap(host->base);
-        }
-        if (r)
-                release_resource(r);
-        if (mmc)
-                if (!IS_ERR_OR_NULL(host->clk)) {
                        clk_disable_unprepare(host->clk);
-                        clk_put(host->clk);
-                }
                mmc_free_host(mmc);
+        }
        return ret;
 }
@@ -852,28 +832,16 @@ static int __exit mvsd_remove(struct platform_device *pdev)
 {
        struct mmc_host *mmc = platform_get_drvdata(pdev);
-        if (mmc) {
+        struct mvsd_host *host = mmc_priv(mmc);
-                struct mvsd_host *host = mmc_priv(mmc);
-                if (host->gpio_card_detect) {
+        mmc_remove_host(mmc);
-                        free_irq(gpio_to_irq(host->gpio_card_detect), host);
+        del_timer_sync(&host->timer);
-                        gpio_free(host->gpio_card_detect);
+        mvsd_power_down(host);
-                }
-                mmc_remove_host(mmc);
+        if (!IS_ERR(host->clk))
-                free_irq(host->irq, host);
+                clk_disable_unprepare(host->clk);
-                if (host->gpio_write_protect)
+        mmc_free_host(mmc);
-                        gpio_free(host->gpio_write_protect);
-                del_timer_sync(&host->timer);
-                mvsd_power_down(host);
-                iounmap(host->base);
-                release_resource(host->res);
-                if (!IS_ERR(host->clk)) {
-                        clk_disable_unprepare(host->clk);
-                        clk_put(host->clk);
-                }
-                mmc_free_host(mmc);
-        }
        platform_set_drvdata(pdev, NULL);
        return 0;
 }
diff --git a/drivers/pci/hotplug/pciehp.h b/drivers/pci/hotplug/pciehp.h
index 26ffd3e3fb74..2c113de94323 100644
--- a/drivers/pci/hotplug/pciehp.h
+++ b/drivers/pci/hotplug/pciehp.h
@@ -44,7 +44,6 @@ extern bool pciehp_poll_mode;
 extern int pciehp_poll_time;
 extern bool pciehp_debug;
 extern bool pciehp_force;
-extern struct workqueue_struct *pciehp_wq;
 #define dbg(format, arg...)                                             \
 do {                                                                    \
@@ -78,6 +77,7 @@ struct slot {
        struct hotplug_slot *hotplug_slot;
        struct delayed_work work;       /* work for button event */
        struct mutex lock;
+        struct workqueue_struct *wq;
 };
 struct event_info {
diff --git a/drivers/pci/hotplug/pciehp_core.c b/drivers/pci/hotplug/pciehp_core.c
index 916bf4f53aba..939bd1d4b5b1 100644
--- a/drivers/pci/hotplug/pciehp_core.c
+++ b/drivers/pci/hotplug/pciehp_core.c
@@ -42,7 +42,6 @@ bool pciehp_debug;
 bool pciehp_poll_mode;
 int pciehp_poll_time;
 bool pciehp_force;
-struct workqueue_struct *pciehp_wq;
 #define DRIVER_VERSION  "0.4"
 #define DRIVER_AUTHOR   "Dan Zink <dan.zink@compaq.com>, Greg Kroah-Hartman <greg@kroah.com>, Dely Sy <dely.l.sy@intel.com>"
@@ -340,18 +339,13 @@ static int __init pcied_init(void)
 {
        int retval = 0;
-        pciehp_wq = alloc_workqueue("pciehp", 0, 0);
-        if (!pciehp_wq)
-                return -ENOMEM;
        pciehp_firmware_init();
        retval = pcie_port_service_register(&hpdriver_portdrv);
        dbg("pcie_port_service_register = %d\n", retval);
        info(DRIVER_DESC " version: " DRIVER_VERSION "\n");
-        if (retval) {
+        if (retval)
-                destroy_workqueue(pciehp_wq);
                dbg("Failure to register service\n");
-        }
        return retval;
 }
@@ -359,7 +353,6 @@ static void __exit pcied_cleanup(void)
 {
        dbg("unload_pciehpd()\n");
        pcie_port_service_unregister(&hpdriver_portdrv);
-        destroy_workqueue(pciehp_wq);
        info(DRIVER_DESC " version: " DRIVER_VERSION " unloaded\n");
 }
diff --git a/drivers/pci/hotplug/pciehp_ctrl.c b/drivers/pci/hotplug/pciehp_ctrl.c
index 27f44295a657..38f018679175 100644
--- a/drivers/pci/hotplug/pciehp_ctrl.c
+++ b/drivers/pci/hotplug/pciehp_ctrl.c
@@ -49,7 +49,7 @@ static int queue_interrupt_event(struct slot *p_slot, u32 event_type)
        info->p_slot = p_slot;
        INIT_WORK(&info->work, interrupt_event_handler);
-        queue_work(pciehp_wq, &info->work);
+        queue_work(p_slot->wq, &info->work);
        return 0;
 }
@@ -344,7 +344,7 @@ void pciehp_queue_pushbutton_work(struct work_struct *work)
                kfree(info);
                goto out;
        }
-        queue_work(pciehp_wq, &info->work);
+        queue_work(p_slot->wq, &info->work);
 out:
        mutex_unlock(&p_slot->lock);
 }
@@ -377,7 +377,7 @@ static void handle_button_press_event(struct slot *p_slot)
                if (ATTN_LED(ctrl))
                        pciehp_set_attention_status(p_slot, 0);
-                queue_delayed_work(pciehp_wq, &p_slot->work, 5*HZ);
+                queue_delayed_work(p_slot->wq, &p_slot->work, 5*HZ);
                break;
        case BLINKINGOFF_STATE:
        case BLINKINGON_STATE:
@@ -439,7 +439,7 @@ static void handle_surprise_event(struct slot *p_slot)
        else
                p_slot->state = POWERON_STATE;
-        queue_work(pciehp_wq, &info->work);
+        queue_work(p_slot->wq, &info->work);
 }
 static void interrupt_event_handler(struct work_struct *work)
diff --git a/drivers/pci/hotplug/pciehp_hpc.c b/drivers/pci/hotplug/pciehp_hpc.c
index 13b2eaf7ba43..5127f3f41821 100644
--- a/drivers/pci/hotplug/pciehp_hpc.c
+++ b/drivers/pci/hotplug/pciehp_hpc.c
@@ -773,23 +773,32 @@ static void pcie_shutdown_notification(struct controller *ctrl)
 static int pcie_init_slot(struct controller *ctrl)
 {
        struct slot *slot;
+        char name[32];
        slot = kzalloc(sizeof(*slot), GFP_KERNEL);
        if (!slot)
                return -ENOMEM;
+        snprintf(name, sizeof(name), "pciehp-%u", PSN(ctrl));
+        slot->wq = alloc_workqueue(name, 0, 0);
+        if (!slot->wq)
+                goto abort;
        slot->ctrl = ctrl;
        mutex_init(&slot->lock);
        INIT_DELAYED_WORK(&slot->work, pciehp_queue_pushbutton_work);
        ctrl->slot = slot;
        return 0;
+abort:
+        kfree(slot);
+        return -ENOMEM;
 }
 static void pcie_cleanup_slot(struct controller *ctrl)
 {
        struct slot *slot = ctrl->slot;
        cancel_delayed_work(&slot->work);
-        flush_workqueue(pciehp_wq);
+        destroy_workqueue(slot->wq);
        kfree(slot);
 }
diff --git a/drivers/pci/hotplug/shpchp.h b/drivers/pci/hotplug/shpchp.h
index ca64932e658b..b849f995075a 100644
--- a/drivers/pci/hotplug/shpchp.h
+++ b/drivers/pci/hotplug/shpchp.h
@@ -46,8 +46,6 @@
 extern bool shpchp_poll_mode;
 extern int shpchp_poll_time;
 extern bool shpchp_debug;
-extern struct workqueue_struct *shpchp_wq;
-extern struct workqueue_struct *shpchp_ordered_wq;
 #define dbg(format, arg...)                                             \
 do {                                                                    \
@@ -91,6 +89,7 @@ struct slot {
        struct list_head        slot_list;
        struct delayed_work work;       /* work for button event */
        struct mutex lock;
+        struct workqueue_struct *wq;
        u8 hp_slot;
 };
diff --git a/drivers/pci/hotplug/shpchp_core.c b/drivers/pci/hotplug/shpchp_core.c
index b6de307248e4..3100c52c837c 100644
--- a/drivers/pci/hotplug/shpchp_core.c
+++ b/drivers/pci/hotplug/shpchp_core.c
@@ -39,8 +39,6 @@
 bool shpchp_debug;
 bool shpchp_poll_mode;
 int shpchp_poll_time;
-struct workqueue_struct *shpchp_wq;
-struct workqueue_struct *shpchp_ordered_wq;
 #define DRIVER_VERSION  "0.4"
 #define DRIVER_AUTHOR   "Dan Zink <dan.zink@compaq.com>, Greg Kroah-Hartman <greg@kroah.com>, Dely Sy <dely.l.sy@intel.com>"
@@ -129,6 +127,14 @@ static int init_slots(struct controller *ctrl)
                slot->device = ctrl->slot_device_offset + i;
                slot->hpc_ops = ctrl->hpc_ops;
                slot->number = ctrl->first_slot + (ctrl->slot_num_inc * i);
+                snprintf(name, sizeof(name), "shpchp-%d", slot->number);
+                slot->wq = alloc_workqueue(name, 0, 0);
+                if (!slot->wq) {
+                        retval = -ENOMEM;
+                        goto error_info;
+                }
                mutex_init(&slot->lock);
                INIT_DELAYED_WORK(&slot->work, shpchp_queue_pushbutton_work);
@@ -148,7 +154,7 @@ static int init_slots(struct controller *ctrl)
                if (retval) {
                        ctrl_err(ctrl, "pci_hp_register failed with error %d\n",
                                 retval);
-                        goto error_info;
+                        goto error_slotwq;
                }
                get_power_status(hotplug_slot, &info->power_status);
@@ -160,6 +166,8 @@ static int init_slots(struct controller *ctrl)
        }
        return 0;
+error_slotwq:
+        destroy_workqueue(slot->wq);
 error_info:
        kfree(info);
 error_hpslot:
@@ -180,8 +188,7 @@ void cleanup_slots(struct controller *ctrl)
                slot = list_entry(tmp, struct slot, slot_list);
                list_del(&slot->slot_list);
                cancel_delayed_work(&slot->work);
-                flush_workqueue(shpchp_wq);
+                destroy_workqueue(slot->wq);
-                flush_workqueue(shpchp_ordered_wq);
                pci_hp_deregister(slot->hotplug_slot);
        }
 }
@@ -364,25 +371,12 @@ static struct pci_driver shpc_driver = {
 static int __init shpcd_init(void)
 {
-        int retval = 0;
+        int retval;
-        shpchp_wq = alloc_ordered_workqueue("shpchp", 0);
-        if (!shpchp_wq)
-                return -ENOMEM;
-        shpchp_ordered_wq = alloc_ordered_workqueue("shpchp_ordered", 0);
-        if (!shpchp_ordered_wq) {
-                destroy_workqueue(shpchp_wq);
-                return -ENOMEM;
-        }
        retval = pci_register_driver(&shpc_driver);
        dbg("%s: pci_register_driver = %d\n", __func__, retval);
        info(DRIVER_DESC " version: " DRIVER_VERSION "\n");
-        if (retval) {
-                destroy_workqueue(shpchp_ordered_wq);
-                destroy_workqueue(shpchp_wq);
-        }
        return retval;
 }
@@ -390,8 +384,6 @@ static void __exit shpcd_cleanup(void)
 {
        dbg("unload_shpchpd()\n");
        pci_unregister_driver(&shpc_driver);
-        destroy_workqueue(shpchp_ordered_wq);
-        destroy_workqueue(shpchp_wq);
        info(DRIVER_DESC " version: " DRIVER_VERSION " unloaded\n");
 }
diff --git a/drivers/pci/hotplug/shpchp_ctrl.c b/drivers/pci/hotplug/shpchp_ctrl.c
index f9b5a52e4115..58499277903a 100644
--- a/drivers/pci/hotplug/shpchp_ctrl.c
+++ b/drivers/pci/hotplug/shpchp_ctrl.c
@@ -51,7 +51,7 @@ static int queue_interrupt_event(struct slot *p_slot, u32 event_type)
        info->p_slot = p_slot;
        INIT_WORK(&info->work, interrupt_event_handler);
-        queue_work(shpchp_wq, &info->work);
+        queue_work(p_slot->wq, &info->work);
        return 0;
 }
@@ -453,7 +453,7 @@ void shpchp_queue_pushbutton_work(struct work_struct *work)
                kfree(info);
                goto out;
        }
-        queue_work(shpchp_ordered_wq, &info->work);
+        queue_work(p_slot->wq, &info->work);
 out:
        mutex_unlock(&p_slot->lock);
 }
@@ -501,7 +501,7 @@ static void handle_button_press_event(struct slot *p_slot)
                p_slot->hpc_ops->green_led_blink(p_slot);
                p_slot->hpc_ops->set_attention_status(p_slot, 0);
-                queue_delayed_work(shpchp_wq, &p_slot->work, 5*HZ);
+                queue_delayed_work(p_slot->wq, &p_slot->work, 5*HZ);
                break;
        case BLINKINGOFF_STATE:
        case BLINKINGON_STATE:
diff --git a/drivers/pci/pcie/Kconfig b/drivers/pci/pcie/Kconfig
index 6c8bc5809787..fde4a32a0295 100644
--- a/drivers/pci/pcie/Kconfig
+++ b/drivers/pci/pcie/Kconfig
@@ -82,4 +82,4 @@ endchoice
 config PCIE_PME
        def_bool y
-        depends on PCIEPORTBUS && PM_RUNTIME && EXPERIMENTAL && ACPI
+        depends on PCIEPORTBUS && PM_RUNTIME && ACPI
diff --git a/drivers/pci/pcie/aer/aerdrv_core.c b/drivers/pci/pcie/aer/aerdrv_core.c
index 421bbc5fee32..564d97f94b6c 100644
--- a/drivers/pci/pcie/aer/aerdrv_core.c
+++ b/drivers/pci/pcie/aer/aerdrv_core.c
@@ -630,6 +630,7 @@ static void aer_recover_work_func(struct work_struct *work)
                        continue;
                }
                do_recovery(pdev, entry.severity);
+                pci_dev_put(pdev);
        }
 }
 #endif
diff --git a/drivers/pci/pcie/aspm.c b/drivers/pci/pcie/aspm.c
index b52630b8eada..8474b6a4fc9b 100644
--- a/drivers/pci/pcie/aspm.c
+++ b/drivers/pci/pcie/aspm.c
@@ -771,6 +771,9 @@ void pcie_clear_aspm(struct pci_bus *bus)
 {
        struct pci_dev *child;
+        if (aspm_force)
+                return;
        /*
         * Clear any ASPM setup that the firmware has carried out on this bus
         */
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index 2e43b332aae8..2fdd767f8fe8 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -1605,6 +1605,7 @@ static int dwc3_gadget_init_endpoints(struct dwc3 *dwc)
                if (epnum == 0 || epnum == 1) {
                        dep->endpoint.maxpacket = 512;
+                        dep->endpoint.maxburst = 1;
                        dep->endpoint.ops = &dwc3_gadget_ep0_ops;
                        if (!epnum)
                                dwc->gadget.ep0 = &dep->endpoint;
diff --git a/drivers/usb/gadget/f_fs.c b/drivers/usb/gadget/f_fs.c
index 4a6961c517f2..8c2f25121149 100644
--- a/drivers/usb/gadget/f_fs.c
+++ b/drivers/usb/gadget/f_fs.c
@@ -1153,15 +1153,15 @@ static int ffs_fs_parse_opts(struct ffs_sb_fill_data *data, char *opts)
                                        pr_err("%s: unmapped value: %lu\n", opts, value);
                                        return -EINVAL;
                                }
-                        }
+                        } else if (!memcmp(opts, "gid", 3)) {
-                        else if (!memcmp(opts, "gid", 3))
                                data->perms.gid = make_kgid(current_user_ns(), value);
                                if (!gid_valid(data->perms.gid)) {
                                        pr_err("%s: unmapped value: %lu\n", opts, value);
                                        return -EINVAL;
                                }
-                        else
+                        } else {
                                goto invalid;
+                        }
                        break;
                default:
diff --git a/drivers/usb/gadget/fsl_mxc_udc.c b/drivers/usb/gadget/fsl_mxc_udc.c
index 1b0f086426bd..d3bd7b095ba3 100644
--- a/drivers/usb/gadget/fsl_mxc_udc.c
+++ b/drivers/usb/gadget/fsl_mxc_udc.c
@@ -18,14 +18,13 @@
 #include <linux/platform_device.h>
 #include <linux/io.h>
-#include <mach/hardware.h>
 static struct clk *mxc_ahb_clk;
 static struct clk *mxc_per_clk;
 static struct clk *mxc_ipg_clk;
 /* workaround ENGcm09152 for i.MX35 */
-#define USBPHYCTRL_OTGBASE_OFFSET       0x608
+#define MX35_USBPHYCTRL_OFFSET          0x600
+#define USBPHYCTRL_OTGBASE_OFFSET       0x8
 #define USBPHYCTRL_EVDO                 (1 << 23)
 int fsl_udc_clk_init(struct platform_device *pdev)
@@ -59,7 +58,7 @@ int fsl_udc_clk_init(struct platform_device *pdev)
        clk_prepare_enable(mxc_per_clk);
        /* make sure USB_CLK is running at 60 MHz +/- 1000 Hz */
-        if (!cpu_is_mx51()) {
+        if (!strcmp(pdev->id_entry->name, "imx-udc-mx27")) {
                freq = clk_get_rate(mxc_per_clk);
                if (pdata->phy_mode != FSL_USB2_PHY_ULPI &&
                    (freq < 59999000 || freq > 60001000)) {
@@ -79,27 +78,40 @@ eclkrate:
        return ret;
 }
-void fsl_udc_clk_finalize(struct platform_device *pdev)
+int fsl_udc_clk_finalize(struct platform_device *pdev)
 {
        struct fsl_usb2_platform_data *pdata = pdev->dev.platform_data;
-        if (cpu_is_mx35()) {
+        int ret = 0;
-                unsigned int v;
-                /* workaround ENGcm09152 for i.MX35 */
+        /* workaround ENGcm09152 for i.MX35 */
-                if (pdata->workaround & FLS_USB2_WORKAROUND_ENGCM09152) {
+        if (pdata->workaround & FLS_USB2_WORKAROUND_ENGCM09152) {
-                        v = readl(MX35_IO_ADDRESS(MX35_USB_BASE_ADDR +
+                unsigned int v;
-                                        USBPHYCTRL_OTGBASE_OFFSET));
+                struct resource *res = platform_get_resource
-                        writel(v | USBPHYCTRL_EVDO,
+                        (pdev, IORESOURCE_MEM, 0);
-                                MX35_IO_ADDRESS(MX35_USB_BASE_ADDR +
+                void __iomem *phy_regs = ioremap(res->start +
-                                        USBPHYCTRL_OTGBASE_OFFSET));
+                                                MX35_USBPHYCTRL_OFFSET, 512);
+                if (!phy_regs) {
+                        dev_err(&pdev->dev, "ioremap for phy address fails\n");
+                        ret = -EINVAL;
+                        goto ioremap_err;
                }
+                v = readl(phy_regs + USBPHYCTRL_OTGBASE_OFFSET);
+                writel(v | USBPHYCTRL_EVDO,
+                        phy_regs + USBPHYCTRL_OTGBASE_OFFSET);
+                iounmap(phy_regs);
        }
+ioremap_err:
        /* ULPI transceivers don't need usbpll */
        if (pdata->phy_mode == FSL_USB2_PHY_ULPI) {
                clk_disable_unprepare(mxc_per_clk);
                mxc_per_clk = NULL;
        }
+        return ret;
 }
 void fsl_udc_clk_release(void)
diff --git a/drivers/usb/gadget/fsl_udc_core.c b/drivers/usb/gadget/fsl_udc_core.c
index c19f7f13790b..667275cb7bad 100644
--- a/drivers/usb/gadget/fsl_udc_core.c
+++ b/drivers/usb/gadget/fsl_udc_core.c
@@ -41,6 +41,7 @@
 #include <linux/fsl_devices.h>
 #include <linux/dmapool.h>
 #include <linux/delay.h>
+#include <linux/of_device.h>
 #include <asm/byteorder.h>
 #include <asm/io.h>
@@ -2438,11 +2439,6 @@ static int __init fsl_udc_probe(struct platform_device *pdev)
        unsigned int i;
        u32 dccparams;
-        if (strcmp(pdev->name, driver_name)) {
-                VDBG("Wrong device");
-                return -ENODEV;
-        }
        udc_controller = kzalloc(sizeof(struct fsl_udc), GFP_KERNEL);
        if (udc_controller == NULL) {
                ERR("malloc udc failed\n");
@@ -2547,7 +2543,9 @@ static int __init fsl_udc_probe(struct platform_device *pdev)
                dr_controller_setup(udc_controller);
        }
-        fsl_udc_clk_finalize(pdev);
+        ret = fsl_udc_clk_finalize(pdev);
+        if (ret)
+                goto err_free_irq;
        /* Setup gadget structure */
        udc_controller->gadget.ops = &fsl_gadget_ops;
@@ -2756,22 +2754,32 @@ static int fsl_udc_otg_resume(struct device *dev)
        return fsl_udc_resume(NULL);
 }
 /*-------------------------------------------------------------------------
        Register entry point for the peripheral controller driver
 --------------------------------------------------------------------------*/
+static const struct platform_device_id fsl_udc_devtype[] = {
+        {
+                .name = "imx-udc-mx27",
+        }, {
+                .name = "imx-udc-mx51",
+        }, {
+                /* sentinel */
+        }
+};
+MODULE_DEVICE_TABLE(platform, fsl_udc_devtype);
 static struct platform_driver udc_driver = {
-        .remove  = __exit_p(fsl_udc_remove),
+        .remove         = __exit_p(fsl_udc_remove),
+        /* Just for FSL i.mx SoC currently */
+        .id_table       = fsl_udc_devtype,
        /* these suspend and resume are not usb suspend and resume */
-        .suspend = fsl_udc_suspend,
+        .suspend        = fsl_udc_suspend,
-        .resume  = fsl_udc_resume,
+        .resume         = fsl_udc_resume,
-        .driver  = {
+        .driver         = {
-                .name = (char *)driver_name,
+                        .name = (char *)driver_name,
-                .owner = THIS_MODULE,
+                        .owner = THIS_MODULE,
-                /* udc suspend/resume called from OTG driver */
+                        /* udc suspend/resume called from OTG driver */
-                .suspend = fsl_udc_otg_suspend,
+                        .suspend = fsl_udc_otg_suspend,
-                .resume  = fsl_udc_otg_resume,
+                        .resume  = fsl_udc_otg_resume,
        },
 };
diff --git a/drivers/usb/gadget/fsl_usb2_udc.h b/drivers/usb/gadget/fsl_usb2_udc.h
index f61a967f7082..c6703bb07b23 100644
--- a/drivers/usb/gadget/fsl_usb2_udc.h
+++ b/drivers/usb/gadget/fsl_usb2_udc.h
@@ -592,15 +592,16 @@ static inline struct ep_queue_head *get_qh_by_ep(struct fsl_ep *ep)
 struct platform_device;
 #ifdef CONFIG_ARCH_MXC
 int fsl_udc_clk_init(struct platform_device *pdev);
-void fsl_udc_clk_finalize(struct platform_device *pdev);
+int fsl_udc_clk_finalize(struct platform_device *pdev);
 void fsl_udc_clk_release(void);
 #else
 static inline int fsl_udc_clk_init(struct platform_device *pdev)
 {
        return 0;
 }
-static inline void fsl_udc_clk_finalize(struct platform_device *pdev)
+static inline int fsl_udc_clk_finalize(struct platform_device *pdev)
 {
+        return 0;
 }
 static inline void fsl_udc_clk_release(void)
 {
diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index d6bb128ce21e..3a21c5d683c0 100644
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -148,7 +148,7 @@ config USB_EHCI_FSL
          Variation of ARC USB block used in some Freescale chips.
 config USB_EHCI_MXC
-        bool "Support for Freescale i.MX on-chip EHCI USB controller"
+        tristate "Support for Freescale i.MX on-chip EHCI USB controller"
        depends on USB_EHCI_HCD && ARCH_MXC
        select USB_EHCI_ROOT_HUB_TT
        ---help---
diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile
index 1eb4c3006e9e..001fbff2fdef 100644
--- a/drivers/usb/host/Makefile
+++ b/drivers/usb/host/Makefile
@@ -26,6 +26,7 @@ obj-$(CONFIG_PCI)		+= pci-quirks.o
 obj-$(CONFIG_USB_EHCI_HCD)      += ehci-hcd.o
 obj-$(CONFIG_USB_EHCI_PCI)      += ehci-pci.o
 obj-$(CONFIG_USB_EHCI_HCD_PLATFORM)     += ehci-platform.o
+obj-$(CONFIG_USB_EHCI_MXC)      += ehci-mxc.o
 obj-$(CONFIG_USB_OXU210HP_HCD)  += oxu210hp-hcd.o
 obj-$(CONFIG_USB_ISP116X_HCD)   += isp116x-hcd.o
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index c97503bb0b0e..09537b2f1002 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -74,10 +74,6 @@ static const char	hcd_name [] = "ehci_hcd";
 #undef VERBOSE_DEBUG
 #undef EHCI_URB_TRACE
-#ifdef DEBUG
-#define EHCI_STATS
-#endif
 /* magic numbers that can affect system performance */
 #define EHCI_TUNE_CERR          3       /* 0-3 qtd retries; 0 == don't stop */
 #define EHCI_TUNE_RL_HS         4       /* nak throttle; see 4.9 */
@@ -1250,11 +1246,6 @@ MODULE_LICENSE ("GPL");
 #define PLATFORM_DRIVER         ehci_fsl_driver
 #endif
-#ifdef CONFIG_USB_EHCI_MXC
-#include "ehci-mxc.c"
-#define PLATFORM_DRIVER         ehci_mxc_driver
-#endif
 #ifdef CONFIG_USB_EHCI_SH
 #include "ehci-sh.c"
 #define PLATFORM_DRIVER         ehci_hcd_sh_driver
@@ -1352,7 +1343,8 @@ MODULE_LICENSE ("GPL");
 #if !IS_ENABLED(CONFIG_USB_EHCI_PCI) && \
        !IS_ENABLED(CONFIG_USB_EHCI_HCD_PLATFORM) && \
-        !defined(CONFIG_USB_CHIPIDEA_HOST) && \
+        !IS_ENABLED(CONFIG_USB_CHIPIDEA_HOST) && \
+        !IS_ENABLED(CONFIG_USB_EHCI_MXC) && \
        !defined(PLATFORM_DRIVER) && \
        !defined(PS3_SYSTEM_BUS_DRIVER) && \
        !defined(OF_PLATFORM_DRIVER) && \
diff --git a/drivers/usb/host/ehci-mxc.c b/drivers/usb/host/ehci-mxc.c
index ec7f5d2c90de..dedb80bb8d40 100644
--- a/drivers/usb/host/ehci-mxc.c
+++ b/drivers/usb/host/ehci-mxc.c
@@ -17,75 +17,38 @@
 * Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/io.h>
 #include <linux/platform_device.h>
 #include <linux/clk.h>
 #include <linux/delay.h>
 #include <linux/usb/otg.h>
 #include <linux/usb/ulpi.h>
 #include <linux/slab.h>
+#include <linux/usb.h>
+#include <linux/usb/hcd.h>
 #include <linux/platform_data/usb-ehci-mxc.h>
 #include <asm/mach-types.h>
+#include "ehci.h"
+#define DRIVER_DESC "Freescale On-Chip EHCI Host driver"
+static const char hcd_name[] = "ehci-mxc";
 #define ULPI_VIEWPORT_OFFSET    0x170
 struct ehci_mxc_priv {
        struct clk *usbclk, *ahbclk, *phyclk;
-        struct usb_hcd *hcd;
 };
-/* called during probe() after chip reset completes */
+static struct hc_driver __read_mostly ehci_mxc_hc_driver;
-static int ehci_mxc_setup(struct usb_hcd *hcd)
-{
-        hcd->has_tt = 1;
-        return ehci_setup(hcd);
-}
-static const struct hc_driver ehci_mxc_hc_driver = {
+static const struct ehci_driver_overrides ehci_mxc_overrides __initdata = {
-        .description = hcd_name,
+        .extra_priv_size =      sizeof(struct ehci_mxc_priv),
-        .product_desc = "Freescale On-Chip EHCI Host Controller",
-        .hcd_priv_size = sizeof(struct ehci_hcd),
-        /*
-         * generic hardware linkage
-         */
-        .irq = ehci_irq,
-        .flags = HCD_USB2 | HCD_MEMORY,
-        /*
-         * basic lifecycle operations
-         */
-        .reset = ehci_mxc_setup,
-        .start = ehci_run,
-        .stop = ehci_stop,
-        .shutdown = ehci_shutdown,
-        /*
-         * managing i/o requests and associated device resources
-         */
-        .urb_enqueue = ehci_urb_enqueue,
-        .urb_dequeue = ehci_urb_dequeue,
-        .endpoint_disable = ehci_endpoint_disable,
-        .endpoint_reset = ehci_endpoint_reset,
-        /*
-         * scheduling support
-         */
-        .get_frame_number = ehci_get_frame,
-        /*
-         * root hub support
-         */
-        .hub_status_data = ehci_hub_status_data,
-        .hub_control = ehci_hub_control,
-        .bus_suspend = ehci_bus_suspend,
-        .bus_resume = ehci_bus_resume,
-        .relinquish_port = ehci_relinquish_port,
-        .port_handed_over = ehci_port_handed_over,
-        .clear_tt_buffer_complete = ehci_clear_tt_buffer_complete,
 };
 static int ehci_mxc_drv_probe(struct platform_device *pdev)
@@ -112,12 +75,6 @@ static int ehci_mxc_drv_probe(struct platform_device *pdev)
        if (!hcd)
                return -ENOMEM;
-        priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
-        if (!priv) {
-                ret = -ENOMEM;
-                goto err_alloc;
-        }
        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
        if (!res) {
                dev_err(dev, "Found HC with no register addr. Check setup!\n");
@@ -135,6 +92,10 @@ static int ehci_mxc_drv_probe(struct platform_device *pdev)
                goto err_alloc;
        }
+        hcd->has_tt = 1;
+        ehci = hcd_to_ehci(hcd);
+        priv = (struct ehci_mxc_priv *) ehci->priv;
        /* enable clocks */
        priv->usbclk = devm_clk_get(&pdev->dev, "ipg");
        if (IS_ERR(priv->usbclk)) {
@@ -169,8 +130,6 @@ static int ehci_mxc_drv_probe(struct platform_device *pdev)
                mdelay(10);
        }
-        ehci = hcd_to_ehci(hcd);
        /* EHCI registers start at offset 0x100 */
        ehci->caps = hcd->regs + 0x100;
        ehci->regs = hcd->regs + 0x100 +
@@ -198,8 +157,7 @@ static int ehci_mxc_drv_probe(struct platform_device *pdev)
                }
        }
-        priv->hcd = hcd;
+        platform_set_drvdata(pdev, hcd);
-        platform_set_drvdata(pdev, priv);
        ret = usb_add_hcd(hcd, irq, IRQF_SHARED);
        if (ret)
@@ -244,8 +202,11 @@ err_alloc:
 static int __exit ehci_mxc_drv_remove(struct platform_device *pdev)
 {
        struct mxc_usbh_platform_data *pdata = pdev->dev.platform_data;
-        struct ehci_mxc_priv *priv = platform_get_drvdata(pdev);
+        struct usb_hcd *hcd = platform_get_drvdata(pdev);
-        struct usb_hcd *hcd = priv->hcd;
+        struct ehci_hcd *ehci = hcd_to_ehci(hcd);
+        struct ehci_mxc_priv *priv = (struct ehci_mxc_priv *) ehci->priv;
+        usb_remove_hcd(hcd);
        if (pdata && pdata->exit)
                pdata->exit(pdev);
@@ -253,23 +214,20 @@ static int __exit ehci_mxc_drv_remove(struct platform_device *pdev)
        if (pdata->otg)
                usb_phy_shutdown(pdata->otg);
-        usb_remove_hcd(hcd);
-        usb_put_hcd(hcd);
-        platform_set_drvdata(pdev, NULL);
        clk_disable_unprepare(priv->usbclk);
        clk_disable_unprepare(priv->ahbclk);
        if (priv->phyclk)
                clk_disable_unprepare(priv->phyclk);
+        usb_put_hcd(hcd);
+        platform_set_drvdata(pdev, NULL);
        return 0;
 }
 static void ehci_mxc_drv_shutdown(struct platform_device *pdev)
 {
-        struct ehci_mxc_priv *priv = platform_get_drvdata(pdev);
+        struct usb_hcd *hcd = platform_get_drvdata(pdev);
-        struct usb_hcd *hcd = priv->hcd;
        if (hcd->driver->shutdown)
                hcd->driver->shutdown(hcd);
@@ -279,9 +237,31 @@ MODULE_ALIAS("platform:mxc-ehci");
 static struct platform_driver ehci_mxc_driver = {
        .probe = ehci_mxc_drv_probe,
-        .remove = __exit_p(ehci_mxc_drv_remove),
+        .remove = ehci_mxc_drv_remove,
        .shutdown = ehci_mxc_drv_shutdown,
        .driver = {
                   .name = "mxc-ehci",
        },
 };
+static int __init ehci_mxc_init(void)
+{
+        if (usb_disabled())
+                return -ENODEV;
+        pr_info("%s: " DRIVER_DESC "\n", hcd_name);
+        ehci_init_driver(&ehci_mxc_hc_driver, &ehci_mxc_overrides);
+        return platform_driver_register(&ehci_mxc_driver);
+}
+module_init(ehci_mxc_init);
+static void __exit ehci_mxc_cleanup(void)
+{
+        platform_driver_unregister(&ehci_mxc_driver);
+}
+module_exit(ehci_mxc_cleanup);
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_AUTHOR("Sascha Hauer");
+MODULE_LICENSE("GPL");
diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h
index 9dadc7118d68..36c3a8210595 100644
--- a/drivers/usb/host/ehci.h
+++ b/drivers/usb/host/ehci.h
@@ -38,6 +38,10 @@ typedef __u16 __bitwise __hc16;
 #endif
 /* statistics can be kept for tuning/monitoring */
+#ifdef DEBUG
+#define EHCI_STATS
+#endif
 struct ehci_stats {
        /* irq usage */
        unsigned long           normal;
@@ -221,6 +225,9 @@ struct ehci_hcd {			/* one per controller */
 #ifdef DEBUG
        struct dentry           *debug_dir;
 #endif
+        /* platform-specific data -- must come last */
+        unsigned long           priv[0] __aligned(sizeof(s64));
 };
 /* convert between an HCD pointer and the corresponding EHCI_HCD */
diff --git a/drivers/usb/host/uhci-hcd.c b/drivers/usb/host/uhci-hcd.c
index 4b9e9aba2665..4f64d24eebc8 100644
--- a/drivers/usb/host/uhci-hcd.c
+++ b/drivers/usb/host/uhci-hcd.c
@@ -447,6 +447,10 @@ static irqreturn_t uhci_irq(struct usb_hcd *hcd)
                return IRQ_NONE;
        uhci_writew(uhci, status, USBSTS);              /* Clear it */
+        spin_lock(&uhci->lock);
+        if (unlikely(!uhci->is_initialized))    /* not yet configured */
+                goto done;
        if (status & ~(USBSTS_USBINT | USBSTS_ERROR | USBSTS_RD)) {
                if (status & USBSTS_HSE)
                        dev_err(uhci_dev(uhci), "host system error, "
@@ -455,7 +459,6 @@ static irqreturn_t uhci_irq(struct usb_hcd *hcd)
                        dev_err(uhci_dev(uhci), "host controller process "
                                        "error, something bad happened!\n");
                if (status & USBSTS_HCH) {
-                        spin_lock(&uhci->lock);
                        if (uhci->rh_state >= UHCI_RH_RUNNING) {
                                dev_err(uhci_dev(uhci),
                                        "host controller halted, "
@@ -473,15 +476,15 @@ static irqreturn_t uhci_irq(struct usb_hcd *hcd)
                                 * pending unlinks */
                                mod_timer(&hcd->rh_timer, jiffies);
                        }
-                        spin_unlock(&uhci->lock);
                }
        }
-        if (status & USBSTS_RD)
+        if (status & USBSTS_RD) {
+                spin_unlock(&uhci->lock);
                usb_hcd_poll_rh_status(hcd);
-        else {
+        } else {
-                spin_lock(&uhci->lock);
                uhci_scan_schedule(uhci);
+ done:
                spin_unlock(&uhci->lock);
        }
@@ -662,9 +665,9 @@ static int uhci_start(struct usb_hcd *hcd)
         */
        mb();
+        spin_lock_irq(&uhci->lock);
        configure_hc(uhci);
        uhci->is_initialized = 1;
-        spin_lock_irq(&uhci->lock);
        start_rh(uhci);
        spin_unlock_irq(&uhci->lock);
        return 0;
diff --git a/drivers/usb/musb/cppi_dma.c b/drivers/usb/musb/cppi_dma.c
index 0968dd7a859d..f522000e8f06 100644
--- a/drivers/usb/musb/cppi_dma.c
+++ b/drivers/usb/musb/cppi_dma.c
@@ -105,7 +105,7 @@ static void cppi_reset_tx(struct cppi_tx_stateram __iomem *tx, u32 ptr)
        musb_writel(&tx->tx_complete, 0, ptr);
 }
-static void __init cppi_pool_init(struct cppi *cppi, struct cppi_channel *c)
+static void cppi_pool_init(struct cppi *cppi, struct cppi_channel *c)
 {
        int     j;
@@ -150,7 +150,7 @@ static void cppi_pool_free(struct cppi_channel *c)
        c->last_processed = NULL;
 }
-static int __init cppi_controller_start(struct dma_controller *c)
+static int cppi_controller_start(struct dma_controller *c)
 {
        struct cppi     *controller;
        void __iomem    *tibase;
diff --git a/drivers/vfio/pci/vfio_pci_rdwr.c b/drivers/vfio/pci/vfio_pci_rdwr.c
index 4362d9e7baa3..f72323ef618f 100644
--- a/drivers/vfio/pci/vfio_pci_rdwr.c
+++ b/drivers/vfio/pci/vfio_pci_rdwr.c
@@ -240,17 +240,17 @@ ssize_t vfio_pci_mem_readwrite(struct vfio_pci_device *vdev, char __user *buf,
                        filled = 1;
                } else {
                        /* Drop writes, fill reads with FF */
+                        filled = min((size_t)(x_end - pos), count);
                        if (!iswrite) {
                                char val = 0xFF;
                                size_t i;
-                                for (i = 0; i < x_end - pos; i++) {
+                                for (i = 0; i < filled; i++) {
                                        if (put_user(val, buf + i))
                                                goto out;
                                }
                        }
-                        filled = x_end - pos;
                }
                count -= filled;
diff --git a/drivers/video/imxfb.c b/drivers/video/imxfb.c
index 12526787a7c7..0abf2bf20836 100644
--- a/drivers/video/imxfb.c
+++ b/drivers/video/imxfb.c
@@ -139,6 +139,7 @@ struct imxfb_info {
        struct clk              *clk_ahb;
        struct clk              *clk_per;
        enum imxfb_type         devtype;
+        bool                    enabled;
        /*
         * These are the addresses we mapped
@@ -536,6 +537,10 @@ static void imxfb_exit_backlight(struct imxfb_info *fbi)
 static void imxfb_enable_controller(struct imxfb_info *fbi)
 {
+        if (fbi->enabled)
+                return;
        pr_debug("Enabling LCD controller\n");
        writel(fbi->screen_dma, fbi->regs + LCDC_SSA);
@@ -556,6 +561,7 @@ static void imxfb_enable_controller(struct imxfb_info *fbi)
        clk_prepare_enable(fbi->clk_ipg);
        clk_prepare_enable(fbi->clk_ahb);
        clk_prepare_enable(fbi->clk_per);
+        fbi->enabled = true;
        if (fbi->backlight_power)
                fbi->backlight_power(1);
@@ -565,6 +571,9 @@ static void imxfb_enable_controller(struct imxfb_info *fbi)
 static void imxfb_disable_controller(struct imxfb_info *fbi)
 {
+        if (!fbi->enabled)
+                return;
        pr_debug("Disabling LCD controller\n");
        if (fbi->backlight_power)
@@ -575,6 +584,7 @@ static void imxfb_disable_controller(struct imxfb_info *fbi)
        clk_disable_unprepare(fbi->clk_per);
        clk_disable_unprepare(fbi->clk_ipg);
        clk_disable_unprepare(fbi->clk_ahb);
+        fbi->enabled = false;
        writel(0, fbi->regs + LCDC_RMCR);
 }
@@ -729,6 +739,8 @@ static int __init imxfb_init_fbinfo(struct platform_device *pdev)
        memset(fbi, 0, sizeof(struct imxfb_info));
+        fbi->devtype = pdev->id_entry->driver_data;
        strlcpy(info->fix.id, IMX_NAME, sizeof(info->fix.id));
        info->fix.type                  = FB_TYPE_PACKED_PIXELS;
@@ -789,7 +801,6 @@ static int __init imxfb_probe(struct platform_device *pdev)
                return -ENOMEM;
        fbi = info->par;
-        fbi->devtype = pdev->id_entry->driver_data;
        if (!fb_mode)
                fb_mode = pdata->mode[0].mode.name;
diff --git a/fs/Kconfig b/fs/Kconfig
index cfe512fd1caf..780725a463b1 100644
--- a/fs/Kconfig
+++ b/fs/Kconfig
@@ -68,16 +68,6 @@ source "fs/quota/Kconfig"
 source "fs/autofs4/Kconfig"
 source "fs/fuse/Kconfig"
-config CUSE
-        tristate "Character device in Userspace support"
-        depends on FUSE_FS
-        help
-          This FUSE extension allows character devices to be
-          implemented in userspace.
-          If you want to develop or use userspace character device
-          based on CUSE, answer Y or M.
 config GENERIC_ACL
        bool
        select FS_POSIX_ACL
diff --git a/fs/f2fs/acl.c b/fs/f2fs/acl.c
index e95b94945d5f..137af4255da6 100644
--- a/fs/f2fs/acl.c
+++ b/fs/f2fs/acl.c
@@ -191,15 +191,14 @@ struct posix_acl *f2fs_get_acl(struct inode *inode, int type)
                retval = f2fs_getxattr(inode, name_index, "", value, retval);
        }
-        if (retval < 0) {
+        if (retval > 0)
-                if (retval == -ENODATA)
-                        acl = NULL;
-                else
-                        acl = ERR_PTR(retval);
-        } else {
                acl = f2fs_acl_from_disk(value, retval);
-        }
+        else if (retval == -ENODATA)
+                acl = NULL;
+        else
+                acl = ERR_PTR(retval);
        kfree(value);
        if (!IS_ERR(acl))
                set_cached_acl(inode, type, acl);
diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index 6ef36c37e2be..ff3c8439af87 100644
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -214,7 +214,6 @@ retry:
                goto retry;
        }
        new->ino = ino;
-        INIT_LIST_HEAD(&new->list);
        /* add new_oentry into list which is sorted by inode number */
        if (orphan) {
@@ -772,7 +771,7 @@ void init_orphan_info(struct f2fs_sb_info *sbi)
        sbi->n_orphans = 0;
 }
-int create_checkpoint_caches(void)
+int __init create_checkpoint_caches(void)
 {
        orphan_entry_slab = f2fs_kmem_cache_create("f2fs_orphan_entry",
                        sizeof(struct orphan_inode_entry), NULL);
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index 3aa5ce7cab83..7bd22a201125 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -547,6 +547,15 @@ redirty_out:
 #define MAX_DESIRED_PAGES_WP    4096
+static int __f2fs_writepage(struct page *page, struct writeback_control *wbc,
+                        void *data)
+{
+        struct address_space *mapping = data;
+        int ret = mapping->a_ops->writepage(page, wbc);
+        mapping_set_error(mapping, ret);
+        return ret;
+}
 static int f2fs_write_data_pages(struct address_space *mapping,
                            struct writeback_control *wbc)
 {
@@ -563,7 +572,7 @@ static int f2fs_write_data_pages(struct address_space *mapping,
        if (!S_ISDIR(inode->i_mode))
                mutex_lock(&sbi->writepages);
-        ret = generic_writepages(mapping, wbc);
+        ret = write_cache_pages(mapping, wbc, __f2fs_writepage, mapping);
        if (!S_ISDIR(inode->i_mode))
                mutex_unlock(&sbi->writepages);
        f2fs_submit_bio(sbi, DATA, (wbc->sync_mode == WB_SYNC_ALL));
@@ -689,6 +698,11 @@ static int f2fs_set_data_page_dirty(struct page *page)
        return 0;
 }
+static sector_t f2fs_bmap(struct address_space *mapping, sector_t block)
+{
+        return generic_block_bmap(mapping, block, get_data_block_ro);
+}
 const struct address_space_operations f2fs_dblock_aops = {
        .readpage       = f2fs_read_data_page,
        .readpages      = f2fs_read_data_pages,
@@ -700,4 +714,5 @@ const struct address_space_operations f2fs_dblock_aops = {
        .invalidatepage = f2fs_invalidate_data_page,
        .releasepage    = f2fs_release_data_page,
        .direct_IO      = f2fs_direct_IO,
+        .bmap           = f2fs_bmap,
 };
diff --git a/fs/f2fs/debug.c b/fs/f2fs/debug.c
index 0e0380a588ad..c8c37307b326 100644
--- a/fs/f2fs/debug.c
+++ b/fs/f2fs/debug.c
@@ -26,6 +26,7 @@
 static LIST_HEAD(f2fs_stat_list);
 static struct dentry *debugfs_root;
+static DEFINE_MUTEX(f2fs_stat_mutex);
 static void update_general_status(struct f2fs_sb_info *sbi)
 {
@@ -180,18 +181,14 @@ static int stat_show(struct seq_file *s, void *v)
        int i = 0;
        int j;
+        mutex_lock(&f2fs_stat_mutex);
        list_for_each_entry_safe(si, next, &f2fs_stat_list, stat_list) {
-                mutex_lock(&si->stat_lock);
-                if (!si->sbi) {
-                        mutex_unlock(&si->stat_lock);
-                        continue;
-                }
                update_general_status(si->sbi);
                seq_printf(s, "\n=====[ partition info. #%d ]=====\n", i++);
-                seq_printf(s, "[SB: 1] [CP: 2] [NAT: %d] [SIT: %d] ",
+                seq_printf(s, "[SB: 1] [CP: 2] [SIT: %d] [NAT: %d] ",
-                           si->nat_area_segs, si->sit_area_segs);
+                           si->sit_area_segs, si->nat_area_segs);
                seq_printf(s, "[SSA: %d] [MAIN: %d",
                           si->ssa_area_segs, si->main_area_segs);
                seq_printf(s, "(OverProv:%d Resv:%d)]\n\n",
@@ -286,8 +283,8 @@ static int stat_show(struct seq_file *s, void *v)
                seq_printf(s, "\nMemory: %u KB = static: %u + cached: %u\n",
                                (si->base_mem + si->cache_mem) >> 10,
                                si->base_mem >> 10, si->cache_mem >> 10);
-                mutex_unlock(&si->stat_lock);
        }
+        mutex_unlock(&f2fs_stat_mutex);
        return 0;
 }
@@ -303,7 +300,7 @@ static const struct file_operations stat_fops = {
        .release = single_release,
 };
-static int init_stats(struct f2fs_sb_info *sbi)
+int f2fs_build_stats(struct f2fs_sb_info *sbi)
 {
        struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi);
        struct f2fs_stat_info *si;
@@ -313,9 +310,6 @@ static int init_stats(struct f2fs_sb_info *sbi)
                return -ENOMEM;
        si = sbi->stat_info;
-        mutex_init(&si->stat_lock);
-        list_add_tail(&si->stat_list, &f2fs_stat_list);
        si->all_area_segs = le32_to_cpu(raw_super->segment_count);
        si->sit_area_segs = le32_to_cpu(raw_super->segment_count_sit);
        si->nat_area_segs = le32_to_cpu(raw_super->segment_count_nat);
@@ -325,21 +319,11 @@ static int init_stats(struct f2fs_sb_info *sbi)
        si->main_area_zones = si->main_area_sections /
                                le32_to_cpu(raw_super->secs_per_zone);
        si->sbi = sbi;
-        return 0;
-}
-int f2fs_build_stats(struct f2fs_sb_info *sbi)
+        mutex_lock(&f2fs_stat_mutex);
-{
+        list_add_tail(&si->stat_list, &f2fs_stat_list);
-        int retval;
+        mutex_unlock(&f2fs_stat_mutex);
-        retval = init_stats(sbi);
-        if (retval)
-                return retval;
-        if (!debugfs_root)
-                debugfs_root = debugfs_create_dir("f2fs", NULL);
-        debugfs_create_file("status", S_IRUGO, debugfs_root, NULL, &stat_fops);
        return 0;
 }
@@ -347,14 +331,22 @@ void f2fs_destroy_stats(struct f2fs_sb_info *sbi)
 {
        struct f2fs_stat_info *si = sbi->stat_info;
+        mutex_lock(&f2fs_stat_mutex);
        list_del(&si->stat_list);
-        mutex_lock(&si->stat_lock);
+        mutex_unlock(&f2fs_stat_mutex);
-        si->sbi = NULL;
-        mutex_unlock(&si->stat_lock);
        kfree(sbi->stat_info);
 }
-void destroy_root_stats(void)
+void __init f2fs_create_root_stats(void)
+{
+        debugfs_root = debugfs_create_dir("f2fs", NULL);
+        if (debugfs_root)
+                debugfs_create_file("status", S_IRUGO, debugfs_root,
+                                         NULL, &stat_fops);
+}
+void f2fs_destroy_root_stats(void)
 {
        debugfs_remove_recursive(debugfs_root);
        debugfs_root = NULL;
diff --git a/fs/f2fs/dir.c b/fs/f2fs/dir.c
index 951ed52748f6..989980e16d0b 100644
--- a/fs/f2fs/dir.c
+++ b/fs/f2fs/dir.c
@@ -503,7 +503,7 @@ void f2fs_delete_entry(struct f2fs_dir_entry *dentry, struct page *page,
        }
        if (inode) {
-                inode->i_ctime = dir->i_ctime = dir->i_mtime = CURRENT_TIME;
+                inode->i_ctime = CURRENT_TIME;
                drop_nlink(inode);
                if (S_ISDIR(inode->i_mode)) {
                        drop_nlink(inode);
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 13c6dfbb7183..c8e2d751ef9c 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -211,11 +211,11 @@ struct dnode_of_data {
 static inline void set_new_dnode(struct dnode_of_data *dn, struct inode *inode,
                struct page *ipage, struct page *npage, nid_t nid)
 {
+        memset(dn, 0, sizeof(*dn));
        dn->inode = inode;
        dn->inode_page = ipage;
        dn->node_page = npage;
        dn->nid = nid;
-        dn->inode_page_locked = 0;
 }
 /*
@@ -877,6 +877,8 @@ bool f2fs_empty_dir(struct inode *);
 * super.c
 */
 int f2fs_sync_fs(struct super_block *, int);
+extern __printf(3, 4)
+void f2fs_msg(struct super_block *, const char *, const char *, ...);
 /*
 * hash.c
@@ -912,7 +914,7 @@ int restore_node_summary(struct f2fs_sb_info *, unsigned int,
 void flush_nat_entries(struct f2fs_sb_info *);
 int build_node_manager(struct f2fs_sb_info *);
 void destroy_node_manager(struct f2fs_sb_info *);
-int create_node_manager_caches(void);
+int __init create_node_manager_caches(void);
 void destroy_node_manager_caches(void);
 /*
@@ -964,7 +966,7 @@ void sync_dirty_dir_inodes(struct f2fs_sb_info *);
 void block_operations(struct f2fs_sb_info *);
 void write_checkpoint(struct f2fs_sb_info *, bool, bool);
 void init_orphan_info(struct f2fs_sb_info *);
-int create_checkpoint_caches(void);
+int __init create_checkpoint_caches(void);
 void destroy_checkpoint_caches(void);
 /*
@@ -984,9 +986,9 @@ int do_write_data_page(struct page *);
 int start_gc_thread(struct f2fs_sb_info *);
 void stop_gc_thread(struct f2fs_sb_info *);
 block_t start_bidx_of_node(unsigned int);
-int f2fs_gc(struct f2fs_sb_info *, int);
+int f2fs_gc(struct f2fs_sb_info *);
 void build_gc_manager(struct f2fs_sb_info *);
-int create_gc_caches(void);
+int __init create_gc_caches(void);
 void destroy_gc_caches(void);
 /*
@@ -1058,7 +1060,8 @@ struct f2fs_stat_info {
 int f2fs_build_stats(struct f2fs_sb_info *);
 void f2fs_destroy_stats(struct f2fs_sb_info *);
-void destroy_root_stats(void);
+void __init f2fs_create_root_stats(void);
+void f2fs_destroy_root_stats(void);
 #else
 #define stat_inc_call_count(si)
 #define stat_inc_seg_count(si, type)
@@ -1068,7 +1071,8 @@ void destroy_root_stats(void);
 static inline int f2fs_build_stats(struct f2fs_sb_info *sbi) { return 0; }
 static inline void f2fs_destroy_stats(struct f2fs_sb_info *sbi) { }
-static inline void destroy_root_stats(void) { }
+static inline void __init f2fs_create_root_stats(void) { }
+static inline void f2fs_destroy_root_stats(void) { }
 #endif
 extern const struct file_operations f2fs_dir_operations;
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 7f9ea9271ebe..3191b52aafb0 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -96,8 +96,9 @@ out:
 }
 static const struct vm_operations_struct f2fs_file_vm_ops = {
-        .fault        = filemap_fault,
+        .fault          = filemap_fault,
-        .page_mkwrite = f2fs_vm_page_mkwrite,
+        .page_mkwrite   = f2fs_vm_page_mkwrite,
+        .remap_pages    = generic_file_remap_pages,
 };
 static int need_to_sync_dir(struct f2fs_sb_info *sbi, struct inode *inode)
@@ -137,6 +138,9 @@ int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync)
        if (ret)
                return ret;
+        /* guarantee free sections for fsync */
+        f2fs_balance_fs(sbi);
        mutex_lock(&inode->i_mutex);
        if (datasync && !(inode->i_state & I_DIRTY_DATASYNC))
@@ -407,6 +411,8 @@ int truncate_hole(struct inode *inode, pgoff_t pg_start, pgoff_t pg_end)
                struct dnode_of_data dn;
                struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
+                f2fs_balance_fs(sbi);
                mutex_lock_op(sbi, DATA_TRUNC);
                set_new_dnode(&dn, inode, NULL, NULL, 0);
                err = get_dnode_of_data(&dn, index, RDONLY_NODE);
@@ -534,7 +540,6 @@ static long f2fs_fallocate(struct file *file, int mode,
                                loff_t offset, loff_t len)
 {
        struct inode *inode = file->f_path.dentry->d_inode;
-        struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
        long ret;
        if (mode & ~(FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE))
@@ -545,7 +550,10 @@ static long f2fs_fallocate(struct file *file, int mode,
        else
                ret = expand_inode_data(inode, offset, len, mode);
-        f2fs_balance_fs(sbi);
+        if (!ret) {
+                inode->i_mtime = inode->i_ctime = CURRENT_TIME;
+                mark_inode_dirty(inode);
+        }
        return ret;
 }
diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c
index b0ec721e984a..c386910dacc5 100644
--- a/fs/f2fs/gc.c
+++ b/fs/f2fs/gc.c
@@ -78,7 +78,7 @@ static int gc_thread_func(void *data)
                sbi->bg_gc++;
-                if (f2fs_gc(sbi, 1) == GC_NONE)
+                if (f2fs_gc(sbi) == GC_NONE)
                        wait_ms = GC_THREAD_NOGC_SLEEP_TIME;
                else if (wait_ms == GC_THREAD_NOGC_SLEEP_TIME)
                        wait_ms = GC_THREAD_MAX_SLEEP_TIME;
@@ -424,7 +424,11 @@ next_step:
 }
 /*
- * Calculate start block index that this node page contains
+ * Calculate start block index indicating the given node offset.
+ * Be careful, caller should give this node offset only indicating direct node
+ * blocks. If any node offsets, which point the other types of node blocks such
+ * as indirect or double indirect node blocks, are given, it must be a caller's
+ * bug.
 */
 block_t start_bidx_of_node(unsigned int node_ofs)
 {
@@ -651,62 +655,44 @@ static int do_garbage_collect(struct f2fs_sb_info *sbi, unsigned int segno,
        return ret;
 }
-int f2fs_gc(struct f2fs_sb_info *sbi, int nGC)
+int f2fs_gc(struct f2fs_sb_info *sbi)
 {
-        unsigned int segno;
-        int old_free_secs, cur_free_secs;
-        int gc_status, nfree;
        struct list_head ilist;
+        unsigned int segno, i;
        int gc_type = BG_GC;
+        int gc_status = GC_NONE;
        INIT_LIST_HEAD(&ilist);
 gc_more:
-        nfree = 0;
+        if (!(sbi->sb->s_flags & MS_ACTIVE))
-        gc_status = GC_NONE;
+                goto stop;
        if (has_not_enough_free_secs(sbi))
-                old_free_secs = reserved_sections(sbi);
+                gc_type = FG_GC;
-        else
-                old_free_secs = free_sections(sbi);
-        while (sbi->sb->s_flags & MS_ACTIVE) {
-                int i;
-                if (has_not_enough_free_secs(sbi))
-                        gc_type = FG_GC;
-                cur_free_secs = free_sections(sbi) + nfree;
+        if (!__get_victim(sbi, &segno, gc_type, NO_CHECK_TYPE))
+                goto stop;
-                /* We got free space successfully. */
+        for (i = 0; i < sbi->segs_per_sec; i++) {
-                if (nGC < cur_free_secs - old_free_secs)
+                /*
-                        break;
+                 * do_garbage_collect will give us three gc_status:
+                 * GC_ERROR, GC_DONE, and GC_BLOCKED.
-                if (!__get_victim(sbi, &segno, gc_type, NO_CHECK_TYPE))
+                 * If GC is finished uncleanly, we have to return
+                 * the victim to dirty segment list.
+                 */
+                gc_status = do_garbage_collect(sbi, segno + i, &ilist, gc_type);
+                if (gc_status != GC_DONE)
                        break;
-                for (i = 0; i < sbi->segs_per_sec; i++) {
-                        /*
-                         * do_garbage_collect will give us three gc_status:
-                         * GC_ERROR, GC_DONE, and GC_BLOCKED.
-                         * If GC is finished uncleanly, we have to return
-                         * the victim to dirty segment list.
-                         */
-                        gc_status = do_garbage_collect(sbi, segno + i,
-                                        &ilist, gc_type);
-                        if (gc_status != GC_DONE)
-                                goto stop;
-                        nfree++;
-                }
        }
-stop:
+        if (has_not_enough_free_secs(sbi)) {
-        if (has_not_enough_free_secs(sbi) || gc_status == GC_BLOCKED) {
                write_checkpoint(sbi, (gc_status == GC_BLOCKED), false);
-                if (nfree)
+                if (has_not_enough_free_secs(sbi))
                        goto gc_more;
        }
+stop:
        mutex_unlock(&sbi->gc_mutex);
        put_gc_inode(&ilist);
-        BUG_ON(!list_empty(&ilist));
        return gc_status;
 }
@@ -715,7 +701,7 @@ void build_gc_manager(struct f2fs_sb_info *sbi)
        DIRTY_I(sbi)->v_ops = &default_v_ops;
 }
-int create_gc_caches(void)
+int __init create_gc_caches(void)
 {
        winode_slab = f2fs_kmem_cache_create("f2fs_gc_inodes",
                        sizeof(struct inode_entry), NULL);
diff --git a/fs/f2fs/inode.c b/fs/f2fs/inode.c
index bf20b4d03214..794241777322 100644
--- a/fs/f2fs/inode.c
+++ b/fs/f2fs/inode.c
@@ -217,6 +217,9 @@ int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc)
                        inode->i_ino == F2FS_META_INO(sbi))
                return 0;
+        if (wbc)
+                f2fs_balance_fs(sbi);
        node_page = get_node_page(sbi, inode->i_ino);
        if (IS_ERR(node_page))
                return PTR_ERR(node_page);
diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index 5066bfd256c9..9bda63c9c166 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -1124,6 +1124,12 @@ static int f2fs_write_node_page(struct page *page,
        return 0;
 }
+/*
+ * It is very important to gather dirty pages and write at once, so that we can
+ * submit a big bio without interfering other data writes.
+ * Be default, 512 pages (2MB), a segment size, is quite reasonable.
+ */
+#define COLLECT_DIRTY_NODES     512
 static int f2fs_write_node_pages(struct address_space *mapping,
                            struct writeback_control *wbc)
 {
@@ -1131,17 +1137,16 @@ static int f2fs_write_node_pages(struct address_space *mapping,
        struct block_device *bdev = sbi->sb->s_bdev;
        long nr_to_write = wbc->nr_to_write;
-        if (wbc->for_kupdate)
+        /* First check balancing cached NAT entries */
-                return 0;
-        if (get_pages(sbi, F2FS_DIRTY_NODES) == 0)
-                return 0;
        if (try_to_free_nats(sbi, NAT_ENTRY_PER_BLOCK)) {
                write_checkpoint(sbi, false, false);
                return 0;
        }
+        /* collect a number of dirty node pages and write together */
+        if (get_pages(sbi, F2FS_DIRTY_NODES) < COLLECT_DIRTY_NODES)
+                return 0;
        /* if mounting is failed, skip writing node pages */
        wbc->nr_to_write = bio_get_nr_vecs(bdev);
        sync_node_pages(sbi, 0, wbc);
@@ -1732,7 +1737,7 @@ void destroy_node_manager(struct f2fs_sb_info *sbi)
        kfree(nm_i);
 }
-int create_node_manager_caches(void)
+int __init create_node_manager_caches(void)
 {
        nat_entry_slab = f2fs_kmem_cache_create("nat_entry",
                        sizeof(struct nat_entry), NULL);
diff --git a/fs/f2fs/recovery.c b/fs/f2fs/recovery.c
index b571fee677d5..f42e4060b399 100644
--- a/fs/f2fs/recovery.c
+++ b/fs/f2fs/recovery.c
@@ -67,7 +67,7 @@ static int recover_dentry(struct page *ipage, struct inode *inode)
                kunmap(page);
                f2fs_put_page(page, 0);
        } else {
-                f2fs_add_link(&dent, inode);
+                err = f2fs_add_link(&dent, inode);
        }
        iput(dir);
 out:
@@ -151,7 +151,6 @@ static int find_fsync_dnodes(struct f2fs_sb_info *sbi, struct list_head *head)
                                goto out;
                        }
-                        INIT_LIST_HEAD(&entry->list);
                        list_add_tail(&entry->list, head);
                        entry->blkaddr = blkaddr;
                }
@@ -174,10 +173,9 @@ out:
 static void destroy_fsync_dnodes(struct f2fs_sb_info *sbi,
                                        struct list_head *head)
 {
-        struct list_head *this;
+        struct fsync_inode_entry *entry, *tmp;
-        struct fsync_inode_entry *entry;
-        list_for_each(this, head) {
+        list_for_each_entry_safe(entry, tmp, head, list) {
-                entry = list_entry(this, struct fsync_inode_entry, list);
                iput(entry->inode);
                list_del(&entry->list);
                kmem_cache_free(fsync_entry_slab, entry);
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index de6240922b0a..4b0099066582 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -31,7 +31,7 @@ void f2fs_balance_fs(struct f2fs_sb_info *sbi)
         */
        if (has_not_enough_free_secs(sbi)) {
                mutex_lock(&sbi->gc_mutex);
-                f2fs_gc(sbi, 1);
+                f2fs_gc(sbi);
        }
 }
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 08a94c814bdc..37fad04c8669 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -53,6 +53,18 @@ static match_table_t f2fs_tokens = {
        {Opt_err, NULL},
 };
+void f2fs_msg(struct super_block *sb, const char *level, const char *fmt, ...)
+{
+        struct va_format vaf;
+        va_list args;
+        va_start(args, fmt);
+        vaf.fmt = fmt;
+        vaf.va = &args;
+        printk("%sF2FS-fs (%s): %pV\n", level, sb->s_id, &vaf);
+        va_end(args);
+}
 static void init_once(void *foo)
 {
        struct f2fs_inode_info *fi = (struct f2fs_inode_info *) foo;
@@ -125,6 +137,8 @@ int f2fs_sync_fs(struct super_block *sb, int sync)
        if (sync)
                write_checkpoint(sbi, false, false);
+        else
+                f2fs_balance_fs(sbi);
        return 0;
 }
@@ -247,7 +261,8 @@ static const struct export_operations f2fs_export_ops = {
        .get_parent = f2fs_get_parent,
 };
-static int parse_options(struct f2fs_sb_info *sbi, char *options)
+static int parse_options(struct super_block *sb, struct f2fs_sb_info *sbi,
+                                char *options)
 {
        substring_t args[MAX_OPT_ARGS];
        char *p;
@@ -286,7 +301,8 @@ static int parse_options(struct f2fs_sb_info *sbi, char *options)
                        break;
 #else
                case Opt_nouser_xattr:
-                        pr_info("nouser_xattr options not supported\n");
+                        f2fs_msg(sb, KERN_INFO,
+                                "nouser_xattr options not supported");
                        break;
 #endif
 #ifdef CONFIG_F2FS_FS_POSIX_ACL
@@ -295,7 +311,7 @@ static int parse_options(struct f2fs_sb_info *sbi, char *options)
                        break;
 #else
                case Opt_noacl:
-                        pr_info("noacl options not supported\n");
+                        f2fs_msg(sb, KERN_INFO, "noacl options not supported");
                        break;
 #endif
                case Opt_active_logs:
@@ -309,8 +325,9 @@ static int parse_options(struct f2fs_sb_info *sbi, char *options)
                        set_opt(sbi, DISABLE_EXT_IDENTIFY);
                        break;
                default:
-                        pr_err("Unrecognized mount option \"%s\" or missing value\n",
+                        f2fs_msg(sb, KERN_ERR,
-                                        p);
+                                "Unrecognized mount option \"%s\" or missing value",
+                                p);
                        return -EINVAL;
                }
        }
@@ -337,23 +354,36 @@ static loff_t max_file_size(unsigned bits)
        return result;
 }
-static int sanity_check_raw_super(struct f2fs_super_block *raw_super)
+static int sanity_check_raw_super(struct super_block *sb,
+                        struct f2fs_super_block *raw_super)
 {
        unsigned int blocksize;
-        if (F2FS_SUPER_MAGIC != le32_to_cpu(raw_super->magic))
+        if (F2FS_SUPER_MAGIC != le32_to_cpu(raw_super->magic)) {
+                f2fs_msg(sb, KERN_INFO,
+                        "Magic Mismatch, valid(0x%x) - read(0x%x)",
+                        F2FS_SUPER_MAGIC, le32_to_cpu(raw_super->magic));
                return 1;
+        }
        /* Currently, support only 4KB block size */
        blocksize = 1 << le32_to_cpu(raw_super->log_blocksize);
-        if (blocksize != PAGE_CACHE_SIZE)
+        if (blocksize != PAGE_CACHE_SIZE) {
+                f2fs_msg(sb, KERN_INFO,
+                        "Invalid blocksize (%u), supports only 4KB\n",
+                        blocksize);
                return 1;
+        }
        if (le32_to_cpu(raw_super->log_sectorsize) !=
-                                        F2FS_LOG_SECTOR_SIZE)
+                                        F2FS_LOG_SECTOR_SIZE) {
+                f2fs_msg(sb, KERN_INFO, "Invalid log sectorsize");
                return 1;
+        }
        if (le32_to_cpu(raw_super->log_sectors_per_block) !=
-                                        F2FS_LOG_SECTORS_PER_BLOCK)
+                                        F2FS_LOG_SECTORS_PER_BLOCK) {
+                f2fs_msg(sb, KERN_INFO, "Invalid log sectors per block");
                return 1;
+        }
        return 0;
 }
@@ -413,14 +443,17 @@ static int f2fs_fill_super(struct super_block *sb, void *data, int silent)
        if (!sbi)
                return -ENOMEM;
-        /* set a temporary block size */
+        /* set a block size */
-        if (!sb_set_blocksize(sb, F2FS_BLKSIZE))
+        if (!sb_set_blocksize(sb, F2FS_BLKSIZE)) {
+                f2fs_msg(sb, KERN_ERR, "unable to set blocksize");
                goto free_sbi;
+        }
        /* read f2fs raw super block */
        raw_super_buf = sb_bread(sb, 0);
        if (!raw_super_buf) {
                err = -EIO;
+                f2fs_msg(sb, KERN_ERR, "unable to read superblock");
                goto free_sbi;
        }
        raw_super = (struct f2fs_super_block *)
@@ -438,12 +471,14 @@ static int f2fs_fill_super(struct super_block *sb, void *data, int silent)
        set_opt(sbi, POSIX_ACL);
 #endif
        /* parse mount options */
-        if (parse_options(sbi, (char *)data))
+        if (parse_options(sb, sbi, (char *)data))
                goto free_sb_buf;
        /* sanity checking of raw super */
-        if (sanity_check_raw_super(raw_super))
+        if (sanity_check_raw_super(sb, raw_super)) {
+                f2fs_msg(sb, KERN_ERR, "Can't find a valid F2FS filesystem");
                goto free_sb_buf;
+        }
        sb->s_maxbytes = max_file_size(le32_to_cpu(raw_super->log_blocksize));
        sb->s_max_links = F2FS_LINK_MAX;
@@ -477,18 +512,23 @@ static int f2fs_fill_super(struct super_block *sb, void *data, int silent)
        /* get an inode for meta space */
        sbi->meta_inode = f2fs_iget(sb, F2FS_META_INO(sbi));
        if (IS_ERR(sbi->meta_inode)) {
+                f2fs_msg(sb, KERN_ERR, "Failed to read F2FS meta data inode");
                err = PTR_ERR(sbi->meta_inode);
                goto free_sb_buf;
        }
        err = get_valid_checkpoint(sbi);
-        if (err)
+        if (err) {
+                f2fs_msg(sb, KERN_ERR, "Failed to get valid F2FS checkpoint");
                goto free_meta_inode;
+        }
        /* sanity checking of checkpoint */
        err = -EINVAL;
-        if (sanity_check_ckpt(raw_super, sbi->ckpt))
+        if (sanity_check_ckpt(raw_super, sbi->ckpt)) {
+                f2fs_msg(sb, KERN_ERR, "Invalid F2FS checkpoint");
                goto free_cp;
+        }
        sbi->total_valid_node_count =
                                le32_to_cpu(sbi->ckpt->valid_node_count);
@@ -502,25 +542,28 @@ static int f2fs_fill_super(struct super_block *sb, void *data, int silent)
        INIT_LIST_HEAD(&sbi->dir_inode_list);
        spin_lock_init(&sbi->dir_inode_lock);
-        /* init super block */
-        if (!sb_set_blocksize(sb, sbi->blocksize))
-                goto free_cp;
        init_orphan_info(sbi);
        /* setup f2fs internal modules */
        err = build_segment_manager(sbi);
-        if (err)
+        if (err) {
+                f2fs_msg(sb, KERN_ERR,
+                        "Failed to initialize F2FS segment manager");
                goto free_sm;
+        }
        err = build_node_manager(sbi);
-        if (err)
+        if (err) {
+                f2fs_msg(sb, KERN_ERR,
+                        "Failed to initialize F2FS node manager");
                goto free_nm;
+        }
        build_gc_manager(sbi);
        /* get an inode for node space */
        sbi->node_inode = f2fs_iget(sb, F2FS_NODE_INO(sbi));
        if (IS_ERR(sbi->node_inode)) {
+                f2fs_msg(sb, KERN_ERR, "Failed to read node inode");
                err = PTR_ERR(sbi->node_inode);
                goto free_nm;
        }
@@ -533,6 +576,7 @@ static int f2fs_fill_super(struct super_block *sb, void *data, int silent)
        /* read root inode and dentry */
        root = f2fs_iget(sb, F2FS_ROOT_INO(sbi));
        if (IS_ERR(root)) {
+                f2fs_msg(sb, KERN_ERR, "Failed to read root inode");
                err = PTR_ERR(root);
                goto free_node_inode;
        }
@@ -596,7 +640,7 @@ static struct file_system_type f2fs_fs_type = {
        .fs_flags       = FS_REQUIRES_DEV,
 };
-static int init_inodecache(void)
+static int __init init_inodecache(void)
 {
        f2fs_inode_cachep = f2fs_kmem_cache_create("f2fs_inode_cache",
                        sizeof(struct f2fs_inode_info), NULL);
@@ -631,14 +675,17 @@ static int __init init_f2fs_fs(void)
        err = create_checkpoint_caches();
        if (err)
                goto fail;
-        return register_filesystem(&f2fs_fs_type);
+        err = register_filesystem(&f2fs_fs_type);
+        if (err)
+                goto fail;
+        f2fs_create_root_stats();
 fail:
        return err;
 }
 static void __exit exit_f2fs_fs(void)
 {
-        destroy_root_stats();
+        f2fs_destroy_root_stats();
        unregister_filesystem(&f2fs_fs_type);
        destroy_checkpoint_caches();
        destroy_gc_caches();
diff --git a/fs/f2fs/xattr.c b/fs/f2fs/xattr.c
index 940136a3d3a6..8038c0496504 100644
--- a/fs/f2fs/xattr.c
+++ b/fs/f2fs/xattr.c
@@ -318,6 +318,8 @@ int f2fs_setxattr(struct inode *inode, int name_index, const char *name,
        if (name_len > 255 || value_len > MAX_VALUE_LEN)
                return -ERANGE;
+        f2fs_balance_fs(sbi);
        mutex_lock_op(sbi, NODE_NEW);
        if (!fi->i_xattr_nid) {
                /* Allocate new attribute block */
diff --git a/fs/fuse/Kconfig b/fs/fuse/Kconfig
index 0cf160a94eda..1b2f6c2c3aaf 100644
--- a/fs/fuse/Kconfig
+++ b/fs/fuse/Kconfig
@@ -4,12 +4,24 @@ config FUSE_FS
          With FUSE it is possible to implement a fully functional filesystem
          in a userspace program.
-          There's also companion library: libfuse.  This library along with
+          There's also a companion library: libfuse2.  This library is available
-          utilities is available from the FUSE homepage:
+          from the FUSE homepage:
          <http://fuse.sourceforge.net/>
+          although chances are your distribution already has that library
+          installed if you've installed the "fuse" package itself.
          See <file:Documentation/filesystems/fuse.txt> for more information.
          See <file:Documentation/Changes> for needed library/utility version.
          If you want to develop a userspace FS, or if you want to use
          a filesystem based on FUSE, answer Y or M.
+config CUSE
+        tristate "Character device in Userspace support"
+        depends on FUSE_FS
+        help
+          This FUSE extension allows character devices to be
+          implemented in userspace.
+          If you want to develop or use a userspace character device
+          based on CUSE, answer Y or M.
diff --git a/fs/fuse/cuse.c b/fs/fuse/cuse.c
index ee8d55042298..e397b675b029 100644
--- a/fs/fuse/cuse.c
+++ b/fs/fuse/cuse.c
@@ -45,7 +45,6 @@
 #include <linux/miscdevice.h>
 #include <linux/mutex.h>
 #include <linux/slab.h>
-#include <linux/spinlock.h>
 #include <linux/stat.h>
 #include <linux/module.h>
@@ -63,7 +62,7 @@ struct cuse_conn {
        bool                    unrestricted_ioctl;
 };
-static DEFINE_SPINLOCK(cuse_lock);              /* protects cuse_conntbl */
+static DEFINE_MUTEX(cuse_lock);         /* protects registration */
 static struct list_head cuse_conntbl[CUSE_CONNTBL_LEN];
 static struct class *cuse_class;
@@ -114,14 +113,14 @@ static int cuse_open(struct inode *inode, struct file *file)
        int rc;
        /* look up and get the connection */
-        spin_lock(&cuse_lock);
+        mutex_lock(&cuse_lock);
        list_for_each_entry(pos, cuse_conntbl_head(devt), list)
                if (pos->dev->devt == devt) {
                        fuse_conn_get(&pos->fc);
                        cc = pos;
                        break;
                }
-        spin_unlock(&cuse_lock);
+        mutex_unlock(&cuse_lock);
        /* dead? */
        if (!cc)
@@ -267,7 +266,7 @@ static int cuse_parse_one(char **pp, char *end, char **keyp, char **valp)
 static int cuse_parse_devinfo(char *p, size_t len, struct cuse_devinfo *devinfo)
 {
        char *end = p + len;
-        char *key, *val;
+        char *uninitialized_var(key), *uninitialized_var(val);
        int rc;
        while (true) {
@@ -305,14 +304,14 @@ static void cuse_gendev_release(struct device *dev)
 */
 static void cuse_process_init_reply(struct fuse_conn *fc, struct fuse_req *req)
 {
-        struct cuse_conn *cc = fc_to_cc(fc);
+        struct cuse_conn *cc = fc_to_cc(fc), *pos;
        struct cuse_init_out *arg = req->out.args[0].value;
        struct page *page = req->pages[0];
        struct cuse_devinfo devinfo = { };
        struct device *dev;
        struct cdev *cdev;
        dev_t devt;
-        int rc;
+        int rc, i;
        if (req->out.h.error ||
            arg->major != FUSE_KERNEL_VERSION || arg->minor < 11) {
@@ -356,15 +355,24 @@ static void cuse_process_init_reply(struct fuse_conn *fc, struct fuse_req *req)
        dev_set_drvdata(dev, cc);
        dev_set_name(dev, "%s", devinfo.name);
+        mutex_lock(&cuse_lock);
+        /* make sure the device-name is unique */
+        for (i = 0; i < CUSE_CONNTBL_LEN; ++i) {
+                list_for_each_entry(pos, &cuse_conntbl[i], list)
+                        if (!strcmp(dev_name(pos->dev), dev_name(dev)))
+                                goto err_unlock;
+        }
        rc = device_add(dev);
        if (rc)
-                goto err_device;
+                goto err_unlock;
        /* register cdev */
        rc = -ENOMEM;
        cdev = cdev_alloc();
        if (!cdev)
-                goto err_device;
+                goto err_unlock;
        cdev->owner = THIS_MODULE;
        cdev->ops = &cuse_frontend_fops;
@@ -377,9 +385,8 @@ static void cuse_process_init_reply(struct fuse_conn *fc, struct fuse_req *req)
        cc->cdev = cdev;
        /* make the device available */
-        spin_lock(&cuse_lock);
        list_add(&cc->list, cuse_conntbl_head(devt));
-        spin_unlock(&cuse_lock);
+        mutex_unlock(&cuse_lock);
        /* announce device availability */
        dev_set_uevent_suppress(dev, 0);
@@ -391,7 +398,8 @@ out:
 err_cdev:
        cdev_del(cdev);
-err_device:
+err_unlock:
+        mutex_unlock(&cuse_lock);
        put_device(dev);
 err_region:
        unregister_chrdev_region(devt, 1);
@@ -520,9 +528,9 @@ static int cuse_channel_release(struct inode *inode, struct file *file)
        int rc;
        /* remove from the conntbl, no more access from this point on */
-        spin_lock(&cuse_lock);
+        mutex_lock(&cuse_lock);
        list_del_init(&cc->list);
-        spin_unlock(&cuse_lock);
+        mutex_unlock(&cuse_lock);
        /* remove device */
        if (cc->dev)
diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index c16335315e5d..e83351aa5bad 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -692,8 +692,6 @@ static int fuse_try_move_page(struct fuse_copy_state *cs, struct page **pagep)
        struct page *oldpage = *pagep;
        struct page *newpage;
        struct pipe_buffer *buf = cs->pipebufs;
-        struct address_space *mapping;
-        pgoff_t index;
        unlock_request(cs->fc, cs->req);
        fuse_copy_finish(cs);
@@ -724,9 +722,6 @@ static int fuse_try_move_page(struct fuse_copy_state *cs, struct page **pagep)
        if (fuse_check_page(newpage) != 0)
                goto out_fallback_unlock;
-        mapping = oldpage->mapping;
-        index = oldpage->index;
        /*
         * This is a new and locked page, it shouldn't be mapped or
         * have any special flags on it
diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index e21d4d8f87e3..f3ab824fa302 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -2177,8 +2177,8 @@ fuse_direct_IO(int rw, struct kiocb *iocb, const struct iovec *iov,
        return ret;
 }
-long fuse_file_fallocate(struct file *file, int mode, loff_t offset,
+static long fuse_file_fallocate(struct file *file, int mode, loff_t offset,
-                            loff_t length)
+                                loff_t length)
 {
        struct fuse_file *ff = file->private_data;
        struct fuse_conn *fc = ff->fc;
@@ -2213,7 +2213,6 @@ long fuse_file_fallocate(struct file *file, int mode, loff_t offset,
        return err;
 }
-EXPORT_SYMBOL_GPL(fuse_file_fallocate);
 static const struct file_operations fuse_file_operations = {
        .llseek         = fuse_file_llseek,
diff --git a/include/asm-generic/dma-mapping-broken.h b/include/asm-generic/dma-mapping-broken.h
index ccf7b4f34a3c..6c32af918c2f 100644
--- a/include/asm-generic/dma-mapping-broken.h
+++ b/include/asm-generic/dma-mapping-broken.h
@@ -16,6 +16,22 @@ extern void
 dma_free_coherent(struct device *dev, size_t size, void *cpu_addr,
                    dma_addr_t dma_handle);
+static inline void *dma_alloc_attrs(struct device *dev, size_t size,
+                                    dma_addr_t *dma_handle, gfp_t flag,
+                                    struct dma_attrs *attrs)
+{
+        /* attrs is not supported and ignored */
+        return dma_alloc_coherent(dev, size, dma_handle, flag);
+}
+static inline void dma_free_attrs(struct device *dev, size_t size,
+                                  void *cpu_addr, dma_addr_t dma_handle,
+                                  struct dma_attrs *attrs)
+{
+        /* attrs is not supported and ignored */
+        dma_free_coherent(dev, size, cpu_addr, dma_handle);
+}
 #define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f)
 #define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h)
diff --git a/include/linux/ata.h b/include/linux/ata.h
index 408da9502177..8f7a3d68371a 100644
--- a/include/linux/ata.h
+++ b/include/linux/ata.h
@@ -297,10 +297,12 @@ enum {
        ATA_LOG_SATA_NCQ        = 0x10,
        ATA_LOG_SATA_ID_DEV_DATA  = 0x30,
        ATA_LOG_SATA_SETTINGS     = 0x08,
-        ATA_LOG_DEVSLP_MDAT       = 0x30,
+        ATA_LOG_DEVSLP_OFFSET     = 0x30,
+        ATA_LOG_DEVSLP_SIZE       = 0x08,
+        ATA_LOG_DEVSLP_MDAT       = 0x00,
        ATA_LOG_DEVSLP_MDAT_MASK  = 0x1F,
-        ATA_LOG_DEVSLP_DETO       = 0x31,
+        ATA_LOG_DEVSLP_DETO       = 0x01,
-        ATA_LOG_DEVSLP_VALID      = 0x37,
+        ATA_LOG_DEVSLP_VALID      = 0x07,
        ATA_LOG_DEVSLP_VALID_MASK = 0x80,
        /* READ/WRITE LONG (obsolete) */
diff --git a/include/linux/libata.h b/include/linux/libata.h
index 83ba0ab2c915..649e5f86b5f0 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -652,8 +652,8 @@ struct ata_device {
                u32             gscr[SATA_PMP_GSCR_DWORDS]; /* PMP GSCR block */
        };
-        /* Identify Device Data Log (30h), SATA Settings (page 08h) */
+        /* DEVSLP Timing Variables from Identify Device Data Log */
-        u8                      sata_settings[ATA_SECT_SIZE];
+        u8                      devslp_timing[ATA_LOG_DEVSLP_SIZE];
        /* error history */
        int                     spdn_cnt;
diff --git a/arch/arm/mach-imx/iram.h b/include/linux/platform_data/imx-iram.h
index 022690c33702..022690c33702 100644
--- a/arch/arm/mach-imx/iram.h
+++ b/include/linux/platform_data/imx-iram.h
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 6fc8f45de4e9..d2112477ff5e 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -2714,7 +2714,16 @@ static inline void thread_group_cputime_init(struct signal_struct *sig)
 extern void recalc_sigpending_and_wake(struct task_struct *t);
 extern void recalc_sigpending(void);
-extern void signal_wake_up(struct task_struct *t, int resume_stopped);
+extern void signal_wake_up_state(struct task_struct *t, unsigned int state);
+static inline void signal_wake_up(struct task_struct *t, bool resume)
+{
+        signal_wake_up_state(t, resume ? TASK_WAKEKILL : 0);
+}
+static inline void ptrace_signal_wake_up(struct task_struct *t, bool resume)
+{
+        signal_wake_up_state(t, resume ? __TASK_TRACED : 0);
+}
 /*
 * Wrappers for p->thread_info->cpu access. No-op on UP.
diff --git a/kernel/async.c b/kernel/async.c
index a1d585c351d6..6f34904a0b53 100644
--- a/kernel/async.c
+++ b/kernel/async.c
@@ -86,18 +86,27 @@ static atomic_t entry_count;
 */
 static async_cookie_t  __lowest_in_progress(struct async_domain *running)
 {
+        async_cookie_t first_running = next_cookie;     /* infinity value */
+        async_cookie_t first_pending = next_cookie;     /* ditto */
        struct async_entry *entry;
+        /*
+         * Both running and pending lists are sorted but not disjoint.
+         * Take the first cookies from both and return the min.
+         */
        if (!list_empty(&running->domain)) {
                entry = list_first_entry(&running->domain, typeof(*entry), list);
-                return entry->cookie;
+                first_running = entry->cookie;
        }
-        list_for_each_entry(entry, &async_pending, list)
+        list_for_each_entry(entry, &async_pending, list) {
-                if (entry->running == running)
+                if (entry->running == running) {
-                        return entry->cookie;
+                        first_pending = entry->cookie;
+                        break;
+                }
+        }
-        return next_cookie;     /* "infinity" value */
+        return min(first_running, first_pending);
 }
 static async_cookie_t  lowest_in_progress(struct async_domain *running)
@@ -118,13 +127,17 @@ static void async_run_entry_fn(struct work_struct *work)
 {
        struct async_entry *entry =
                container_of(work, struct async_entry, work);
+        struct async_entry *pos;
        unsigned long flags;
        ktime_t uninitialized_var(calltime), delta, rettime;
        struct async_domain *running = entry->running;
-        /* 1) move self to the running queue */
+        /* 1) move self to the running queue, make sure it stays sorted */
        spin_lock_irqsave(&async_lock, flags);
-        list_move_tail(&entry->list, &running->domain);
+        list_for_each_entry_reverse(pos, &running->domain, list)
+                if (entry->cookie < pos->cookie)
+                        break;
+        list_move_tail(&entry->list, &pos->list);
        spin_unlock_irqrestore(&async_lock, flags);
        /* 2) run (and print duration) */
diff --git a/kernel/ptrace.c b/kernel/ptrace.c
index 612a56126851..6cbeaae4406d 100644
--- a/kernel/ptrace.c
+++ b/kernel/ptrace.c
@@ -117,11 +117,45 @@ void __ptrace_unlink(struct task_struct *child)
         * TASK_KILLABLE sleeps.
         */
        if (child->jobctl & JOBCTL_STOP_PENDING || task_is_traced(child))
-                signal_wake_up(child, task_is_traced(child));
+                ptrace_signal_wake_up(child, true);
        spin_unlock(&child->sighand->siglock);
 }
+/* Ensure that nothing can wake it up, even SIGKILL */
+static bool ptrace_freeze_traced(struct task_struct *task)
+{
+        bool ret = false;
+        /* Lockless, nobody but us can set this flag */
+        if (task->jobctl & JOBCTL_LISTENING)
+                return ret;
+        spin_lock_irq(&task->sighand->siglock);
+        if (task_is_traced(task) && !__fatal_signal_pending(task)) {
+                task->state = __TASK_TRACED;
+                ret = true;
+        }
+        spin_unlock_irq(&task->sighand->siglock);
+        return ret;
+}
+static void ptrace_unfreeze_traced(struct task_struct *task)
+{
+        if (task->state != __TASK_TRACED)
+                return;
+        WARN_ON(!task->ptrace || task->parent != current);
+        spin_lock_irq(&task->sighand->siglock);
+        if (__fatal_signal_pending(task))
+                wake_up_state(task, __TASK_TRACED);
+        else
+                task->state = TASK_TRACED;
+        spin_unlock_irq(&task->sighand->siglock);
+}
 /**
 * ptrace_check_attach - check whether ptracee is ready for ptrace operation
 * @child: ptracee to check for
@@ -151,24 +185,29 @@ static int ptrace_check_attach(struct task_struct *child, bool ignore_state)
         * be changed by us so it's not changing right after this.
         */
        read_lock(&tasklist_lock);
-        if ((child->ptrace & PT_PTRACED) && child->parent == current) {
+        if (child->ptrace && child->parent == current) {
+                WARN_ON(child->state == __TASK_TRACED);
                /*
                 * child->sighand can't be NULL, release_task()
                 * does ptrace_unlink() before __exit_signal().
                 */
-                spin_lock_irq(&child->sighand->siglock);
+                if (ignore_state || ptrace_freeze_traced(child))
-                WARN_ON_ONCE(task_is_stopped(child));
-                if (ignore_state || (task_is_traced(child) &&
-                                     !(child->jobctl & JOBCTL_LISTENING)))
                        ret = 0;
-                spin_unlock_irq(&child->sighand->siglock);
        }
        read_unlock(&tasklist_lock);
-        if (!ret && !ignore_state)
+        if (!ret && !ignore_state) {
-                ret = wait_task_inactive(child, TASK_TRACED) ? 0 : -ESRCH;
+                if (!wait_task_inactive(child, __TASK_TRACED)) {
+                        /*
+                         * This can only happen if may_ptrace_stop() fails and
+                         * ptrace_stop() changes ->state back to TASK_RUNNING,
+                         * so we should not worry about leaking __TASK_TRACED.
+                         */
+                        WARN_ON(child->state == __TASK_TRACED);
+                        ret = -ESRCH;
+                }
+        }
-        /* All systems go.. */
        return ret;
 }
@@ -317,7 +356,7 @@ static int ptrace_attach(struct task_struct *task, long request,
         */
        if (task_is_stopped(task) &&
            task_set_jobctl_pending(task, JOBCTL_TRAP_STOP | JOBCTL_TRAPPING))
-                signal_wake_up(task, 1);
+                signal_wake_up_state(task, __TASK_STOPPED);
        spin_unlock(&task->sighand->siglock);
@@ -737,7 +776,7 @@ int ptrace_request(struct task_struct *child, long request,
                 * tracee into STOP.
                 */
                if (likely(task_set_jobctl_pending(child, JOBCTL_TRAP_STOP)))
-                        signal_wake_up(child, child->jobctl & JOBCTL_LISTENING);
+                        ptrace_signal_wake_up(child, child->jobctl & JOBCTL_LISTENING);
                unlock_task_sighand(child, &flags);
                ret = 0;
@@ -763,7 +802,7 @@ int ptrace_request(struct task_struct *child, long request,
                         * start of this trap and now.  Trigger re-trap.
                         */
                        if (child->jobctl & JOBCTL_TRAP_NOTIFY)
-                                signal_wake_up(child, true);
+                                ptrace_signal_wake_up(child, true);
                        ret = 0;
                }
                unlock_task_sighand(child, &flags);
@@ -900,6 +939,8 @@ SYSCALL_DEFINE4(ptrace, long, request, long, pid, unsigned long, addr,
                goto out_put_task_struct;
        ret = arch_ptrace(child, request, addr, data);
+        if (ret || request != PTRACE_DETACH)
+                ptrace_unfreeze_traced(child);
 out_put_task_struct:
        put_task_struct(child);
@@ -1039,8 +1080,11 @@ asmlinkage long compat_sys_ptrace(compat_long_t request, compat_long_t pid,
        ret = ptrace_check_attach(child, request == PTRACE_KILL ||
                                  request == PTRACE_INTERRUPT);
-        if (!ret)
+        if (!ret) {
                ret = compat_arch_ptrace(child, request, addr, data);
+                if (ret || request != PTRACE_DETACH)
+                        ptrace_unfreeze_traced(child);
+        }
 out_put_task_struct:
        put_task_struct(child);
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 257002c13bb0..26058d0bebba 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -1523,7 +1523,8 @@ out:
 */
 int wake_up_process(struct task_struct *p)
 {
-        return try_to_wake_up(p, TASK_ALL, 0);
+        WARN_ON(task_is_stopped_or_traced(p));
+        return try_to_wake_up(p, TASK_NORMAL, 0);
 }
 EXPORT_SYMBOL(wake_up_process);
diff --git a/kernel/signal.c b/kernel/signal.c
index 53cd5c4d1172..3d09cf6cde75 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -680,23 +680,17 @@ int dequeue_signal(struct task_struct *tsk, sigset_t *mask, siginfo_t *info)
 * No need to set need_resched since signal event passing
 * goes through ->blocked
 */
-void signal_wake_up(struct task_struct *t, int resume)
+void signal_wake_up_state(struct task_struct *t, unsigned int state)
 {
-        unsigned int mask;
        set_tsk_thread_flag(t, TIF_SIGPENDING);
        /*
-         * For SIGKILL, we want to wake it up in the stopped/traced/killable
+         * TASK_WAKEKILL also means wake it up in the stopped/traced/killable
         * case. We don't check t->state here because there is a race with it
         * executing another processor and just now entering stopped state.
         * By using wake_up_state, we ensure the process will wake up and
         * handle its death signal.
         */
-        mask = TASK_INTERRUPTIBLE;
+        if (!wake_up_state(t, state | TASK_INTERRUPTIBLE))
-        if (resume)
-                mask |= TASK_WAKEKILL;
-        if (!wake_up_state(t, mask))
                kick_process(t);
 }
@@ -844,7 +838,7 @@ static void ptrace_trap_notify(struct task_struct *t)
        assert_spin_locked(&t->sighand->siglock);
        task_set_jobctl_pending(t, JOBCTL_TRAP_NOTIFY);
-        signal_wake_up(t, t->jobctl & JOBCTL_LISTENING);
+        ptrace_signal_wake_up(t, t->jobctl & JOBCTL_LISTENING);
 }
 /*
@@ -1800,6 +1794,10 @@ static inline int may_ptrace_stop(void)
         * If SIGKILL was already sent before the caller unlocked
         * ->siglock we must see ->core_state != NULL. Otherwise it
         * is safe to enter schedule().
+         *
+         * This is almost outdated, a task with the pending SIGKILL can't
+         * block in TASK_TRACED. But PTRACE_EVENT_EXIT can be reported
+         * after SIGKILL was already dequeued.
         */
        if (unlikely(current->mm->core_state) &&
            unlikely(current->mm == current->parent->mm))
@@ -1925,6 +1923,7 @@ static void ptrace_stop(int exit_code, int why, int clear_code, siginfo_t *info)
                if (gstop_done)
                        do_notify_parent_cldstop(current, false, why);
+                /* tasklist protects us from ptrace_freeze_traced() */
                __set_current_state(TASK_RUNNING);
                if (clear_code)
                        current->exit_code = 0;
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 3ffe4c5ad3f3..41473b4ad7a4 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -3998,7 +3998,7 @@ static int ftrace_module_notify(struct notifier_block *self,
 struct notifier_block ftrace_module_nb = {
        .notifier_call = ftrace_module_notify,
-        .priority = 0,
+        .priority = INT_MAX,    /* Run before anything that can use kprobes */
 };
 extern unsigned long __start_mcount_loc[];
diff --git a/security/device_cgroup.c b/security/device_cgroup.c
index 19ecc8de9e6b..d794abcc4b3b 100644
--- a/security/device_cgroup.c
+++ b/security/device_cgroup.c
@@ -215,7 +215,9 @@ static void devcgroup_css_free(struct cgroup *cgroup)
        struct dev_cgroup *dev_cgroup;
        dev_cgroup = cgroup_to_devcgroup(cgroup);
+        mutex_lock(&devcgroup_mutex);
        dev_exception_clean(dev_cgroup);
+        mutex_unlock(&devcgroup_mutex);
        kfree(dev_cgroup);
 }
diff --git a/security/integrity/evm/evm_crypto.c b/security/integrity/evm/evm_crypto.c
index dfb26918699c..7dd538ef5b83 100644
--- a/security/integrity/evm/evm_crypto.c
+++ b/security/integrity/evm/evm_crypto.c
@@ -205,9 +205,9 @@ int evm_update_evmxattr(struct dentry *dentry, const char *xattr_name,
                rc = __vfs_setxattr_noperm(dentry, XATTR_NAME_EVM,
                                           &xattr_data,
                                           sizeof(xattr_data), 0);
-        }
+        } else if (rc == -ENODATA && inode->i_op->removexattr) {
-        else if (rc == -ENODATA)
                rc = inode->i_op->removexattr(dentry, XATTR_NAME_EVM);
+        }
        return rc;
 }
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index b8fb0a5adb9b..822df971972c 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -3654,6 +3654,7 @@ static void hda_call_codec_resume(struct hda_codec *codec)
        hda_set_power_state(codec, AC_PWRST_D0);
        restore_shutup_pins(codec);
        hda_exec_init_verbs(codec);
+        snd_hda_jack_set_dirty_all(codec);
        if (codec->patch_ops.resume)
                codec->patch_ops.resume(codec);
        else {
@@ -3665,10 +3666,8 @@ static void hda_call_codec_resume(struct hda_codec *codec)
        if (codec->jackpoll_interval)
                hda_jackpoll_work(&codec->jackpoll_work.work);
-        else {
+        else
-                snd_hda_jack_set_dirty_all(codec);
                snd_hda_jack_report_sync(codec);
-        }
        codec->in_pm = 0;
        snd_hda_power_down(codec); /* flag down before returning */
diff --git a/sound/pci/hda/patch_conexant.c b/sound/pci/hda/patch_conexant.c
index dd798c3196ff..009b77a693cf 100644
--- a/sound/pci/hda/patch_conexant.c
+++ b/sound/pci/hda/patch_conexant.c
@@ -4636,6 +4636,12 @@ static const struct hda_codec_preset snd_hda_preset_conexant[] = {
          .patch = patch_conexant_auto },
        { .id = 0x14f15111, .name = "CX20753/4",
          .patch = patch_conexant_auto },
+        { .id = 0x14f15113, .name = "CX20755",
+          .patch = patch_conexant_auto },
+        { .id = 0x14f15114, .name = "CX20756",
+          .patch = patch_conexant_auto },
+        { .id = 0x14f15115, .name = "CX20757",
+          .patch = patch_conexant_auto },
        {} /* terminator */
 };
@@ -4659,6 +4665,9 @@ MODULE_ALIAS("snd-hda-codec-id:14f150b9");
 MODULE_ALIAS("snd-hda-codec-id:14f1510f");
 MODULE_ALIAS("snd-hda-codec-id:14f15110");
 MODULE_ALIAS("snd-hda-codec-id:14f15111");
+MODULE_ALIAS("snd-hda-codec-id:14f15113");
+MODULE_ALIAS("snd-hda-codec-id:14f15114");
+MODULE_ALIAS("snd-hda-codec-id:14f15115");
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("Conexant HD-audio codec");
diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index f5196277b6e9..cf3886171109 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -6251,6 +6251,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
        SND_PCI_QUIRK(0x1025, 0x0349, "Acer AOD260", ALC269_FIXUP_INV_DMIC),
        SND_PCI_QUIRK(0x103c, 0x1586, "HP", ALC269_FIXUP_MIC2_MUTE_LED),
        SND_PCI_QUIRK(0x103c, 0x1972, "HP Pavilion 17", ALC269_FIXUP_MIC1_MUTE_LED),
+        SND_PCI_QUIRK(0x103c, 0x1977, "HP Pavilion 14", ALC269_FIXUP_MIC1_MUTE_LED),
        SND_PCI_QUIRK(0x1043, 0x1427, "Asus Zenbook UX31E", ALC269VB_FIXUP_DMIC),
        SND_PCI_QUIRK(0x1043, 0x1517, "Asus Zenbook UX31A", ALC269VB_FIXUP_DMIC),
        SND_PCI_QUIRK(0x1043, 0x1a13, "Asus G73Jw", ALC269_FIXUP_ASUS_G73JW),
@@ -6265,6 +6266,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
        SND_PCI_QUIRK(0x104d, 0x9084, "Sony VAIO", ALC275_FIXUP_SONY_HWEQ),
        SND_PCI_QUIRK_VENDOR(0x104d, "Sony VAIO", ALC269_FIXUP_SONY_VAIO),
        SND_PCI_QUIRK(0x1028, 0x0470, "Dell M101z", ALC269_FIXUP_DELL_M101Z),
+        SND_PCI_QUIRK(0x1025, 0x0740, "Acer AO725", ALC271_FIXUP_HP_GATE_MIC_JACK),
        SND_PCI_QUIRK(0x1025, 0x0742, "Acer AO756", ALC271_FIXUP_HP_GATE_MIC_JACK),
        SND_PCI_QUIRK_VENDOR(0x1025, "Acer Aspire", ALC271_FIXUP_DMIC),
        SND_PCI_QUIRK(0x10cf, 0x1475, "Lifebook", ALC269_FIXUP_LIFEBOOK),
diff --git a/tools/perf/MANIFEST b/tools/perf/MANIFEST
index 80db3f4bcf7a..39d41068484f 100644
--- a/tools/perf/MANIFEST
+++ b/tools/perf/MANIFEST
@@ -11,11 +11,21 @@ lib/rbtree.c
 include/linux/swab.h
 arch/*/include/asm/unistd*.h
 arch/*/include/asm/perf_regs.h
+arch/*/include/uapi/asm/unistd*.h
+arch/*/include/uapi/asm/perf_regs.h
 arch/*/lib/memcpy*.S
 arch/*/lib/memset*.S
 include/linux/poison.h
 include/linux/magic.h
 include/linux/hw_breakpoint.h
+include/linux/rbtree_augmented.h
+include/uapi/linux/perf_event.h
+include/uapi/linux/const.h
+include/uapi/linux/swab.h
+include/uapi/linux/hw_breakpoint.h
 arch/x86/include/asm/svm.h
 arch/x86/include/asm/vmx.h
 arch/x86/include/asm/kvm_host.h
+arch/x86/include/uapi/asm/svm.h
+arch/x86/include/uapi/asm/vmx.h
+arch/x86/include/uapi/asm/kvm.h
diff --git a/tools/perf/Makefile b/tools/perf/Makefile
index 891bc77bdb2c..8ab05e543ef4 100644
--- a/tools/perf/Makefile
+++ b/tools/perf/Makefile
@@ -58,7 +58,7 @@ ARCH ?= $(shell echo $(uname_M) | sed -e s/i.86/i386/ -e s/sun4u/sparc64/ \
                                  -e s/arm.*/arm/ -e s/sa110/arm/ \
                                  -e s/s390x/s390/ -e s/parisc64/parisc/ \
                                  -e s/ppc.*/powerpc/ -e s/mips.*/mips/ \
-                                  -e s/sh[234].*/sh/ )
+                                  -e s/sh[234].*/sh/ -e s/aarch64.*/arm64/ )
 NO_PERF_REGS := 1
 CC = $(CROSS_COMPILE)gcc