From: "Mike Pagano" <mpagano@gentoo.org>
To: gentoo-commits@lists.gentoo.org
Subject: [gentoo-commits] proj/linux-patches:4.4 commit in: /
Date: Sat, 24 Sep 2016 10:51:21 +0000 (UTC) [thread overview]
Message-ID: <1474714271.b4a959370d2f0791ccc063afa96af89fe14f21ff.mpagano@gentoo> (raw)
commit: b4a959370d2f0791ccc063afa96af89fe14f21ff
Author: Mike Pagano <mpagano <AT> gentoo <DOT> org>
AuthorDate: Sat Sep 24 10:51:11 2016 +0000
Commit: Mike Pagano <mpagano <AT> gentoo <DOT> org>
CommitDate: Sat Sep 24 10:51:11 2016 +0000
URL: https://gitweb.gentoo.org/proj/linux-patches.git/commit/?id=b4a95937
Linux patch 4.4.22
0000_README | 4 +
1021_linux-4.4.22.patch | 3663 +++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 3667 insertions(+)
diff --git a/0000_README b/0000_README
index 71b358f..d60af0e 100644
--- a/0000_README
+++ b/0000_README
@@ -127,6 +127,10 @@ Patch: 1020_linux-4.4.21.patch
From: http://www.kernel.org
Desc: Linux 4.4.21
+Patch: 1021_linux-4.4.22.patch
+From: http://www.kernel.org
+Desc: Linux 4.4.22
+
Patch: 1500_XATTR_USER_PREFIX.patch
From: https://bugs.gentoo.org/show_bug.cgi?id=470644
Desc: Support for namespace user.pax.* on tmpfs.
diff --git a/1021_linux-4.4.22.patch b/1021_linux-4.4.22.patch
new file mode 100644
index 0000000..8381b8d
--- /dev/null
+++ b/1021_linux-4.4.22.patch
@@ -0,0 +1,3663 @@
+diff --git a/Documentation/devicetree/bindings/iio/adc/rockchip-saradc.txt b/Documentation/devicetree/bindings/iio/adc/rockchip-saradc.txt
+index a9a5fe19ff2a..ec9d65682702 100644
+--- a/Documentation/devicetree/bindings/iio/adc/rockchip-saradc.txt
++++ b/Documentation/devicetree/bindings/iio/adc/rockchip-saradc.txt
+@@ -12,6 +12,11 @@ Required properties:
+ - vref-supply: The regulator supply ADC reference voltage.
+ - #io-channel-cells: Should be 1, see ../iio-bindings.txt
+
++Optional properties:
++- resets: Must contain an entry for each entry in reset-names if need support
++ this option. See ../reset/reset.txt for details.
++- reset-names: Must include the name "saradc-apb".
++
+ Example:
+ saradc: saradc@2006c000 {
+ compatible = "rockchip,saradc";
+@@ -19,6 +24,8 @@ Example:
+ interrupts = <GIC_SPI 26 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cru SCLK_SARADC>, <&cru PCLK_SARADC>;
+ clock-names = "saradc", "apb_pclk";
++ resets = <&cru SRST_SARADC>;
++ reset-names = "saradc-apb";
+ #io-channel-cells = <1>;
+ vref-supply = <&vcc18>;
+ };
+diff --git a/Documentation/mic/mpssd/mpssd.c b/Documentation/mic/mpssd/mpssd.c
+index aaeafa18d99b..c99a75968c01 100644
+--- a/Documentation/mic/mpssd/mpssd.c
++++ b/Documentation/mic/mpssd/mpssd.c
+@@ -1538,9 +1538,9 @@ set_cmdline(struct mic_info *mic)
+
+ len = snprintf(buffer, PATH_MAX,
+ "clocksource=tsc highres=off nohz=off ");
+- len += snprintf(buffer + len, PATH_MAX,
++ len += snprintf(buffer + len, PATH_MAX - len,
+ "cpufreq_on;corec6_off;pc3_off;pc6_off ");
+- len += snprintf(buffer + len, PATH_MAX,
++ len += snprintf(buffer + len, PATH_MAX - len,
+ "ifcfg=static;address,172.31.%d.1;netmask,255.255.255.0",
+ mic->id + 1);
+
+diff --git a/Makefile b/Makefile
+index d1cc9e0b7473..a6512f4eec9f 100644
+--- a/Makefile
++++ b/Makefile
+@@ -1,6 +1,6 @@
+ VERSION = 4
+ PATCHLEVEL = 4
+-SUBLEVEL = 21
++SUBLEVEL = 22
+ EXTRAVERSION =
+ NAME = Blurry Fish Butt
+
+diff --git a/arch/alpha/include/asm/uaccess.h b/arch/alpha/include/asm/uaccess.h
+index 9b0d40093c9a..c0ddbbf73400 100644
+--- a/arch/alpha/include/asm/uaccess.h
++++ b/arch/alpha/include/asm/uaccess.h
+@@ -371,14 +371,6 @@ __copy_tofrom_user_nocheck(void *to, const void *from, long len)
+ return __cu_len;
+ }
+
+-extern inline long
+-__copy_tofrom_user(void *to, const void *from, long len, const void __user *validate)
+-{
+- if (__access_ok((unsigned long)validate, len, get_fs()))
+- len = __copy_tofrom_user_nocheck(to, from, len);
+- return len;
+-}
+-
+ #define __copy_to_user(to, from, n) \
+ ({ \
+ __chk_user_ptr(to); \
+@@ -393,17 +385,22 @@ __copy_tofrom_user(void *to, const void *from, long len, const void __user *vali
+ #define __copy_to_user_inatomic __copy_to_user
+ #define __copy_from_user_inatomic __copy_from_user
+
+-
+ extern inline long
+ copy_to_user(void __user *to, const void *from, long n)
+ {
+- return __copy_tofrom_user((__force void *)to, from, n, to);
++ if (likely(__access_ok((unsigned long)to, n, get_fs())))
++ n = __copy_tofrom_user_nocheck((__force void *)to, from, n);
++ return n;
+ }
+
+ extern inline long
+ copy_from_user(void *to, const void __user *from, long n)
+ {
+- return __copy_tofrom_user(to, (__force void *)from, n, from);
++ if (likely(__access_ok((unsigned long)from, n, get_fs())))
++ n = __copy_tofrom_user_nocheck(to, (__force void *)from, n);
++ else
++ memset(to, 0, n);
++ return n;
+ }
+
+ extern void __do_clear_user(void);
+diff --git a/arch/arc/include/asm/pgtable.h b/arch/arc/include/asm/pgtable.h
+index 3cab04255ae0..e5fec320f158 100644
+--- a/arch/arc/include/asm/pgtable.h
++++ b/arch/arc/include/asm/pgtable.h
+@@ -277,8 +277,7 @@ static inline void pmd_set(pmd_t *pmdp, pte_t *ptep)
+
+ #define mk_pte(page, prot) pfn_pte(page_to_pfn(page), prot)
+ #define pte_pfn(pte) (pte_val(pte) >> PAGE_SHIFT)
+-#define pfn_pte(pfn, prot) (__pte(((pte_t)(pfn) << PAGE_SHIFT) | \
+- pgprot_val(prot)))
++#define pfn_pte(pfn, prot) (__pte(((pfn) << PAGE_SHIFT) | pgprot_val(prot)))
+ #define __pte_index(addr) (((addr) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1))
+
+ /*
+diff --git a/arch/arc/include/asm/uaccess.h b/arch/arc/include/asm/uaccess.h
+index d1da6032b715..d4d8df706efa 100644
+--- a/arch/arc/include/asm/uaccess.h
++++ b/arch/arc/include/asm/uaccess.h
+@@ -83,7 +83,10 @@
+ "2: ;nop\n" \
+ " .section .fixup, \"ax\"\n" \
+ " .align 4\n" \
+- "3: mov %0, %3\n" \
++ "3: # return -EFAULT\n" \
++ " mov %0, %3\n" \
++ " # zero out dst ptr\n" \
++ " mov %1, 0\n" \
+ " j 2b\n" \
+ " .previous\n" \
+ " .section __ex_table, \"a\"\n" \
+@@ -101,7 +104,11 @@
+ "2: ;nop\n" \
+ " .section .fixup, \"ax\"\n" \
+ " .align 4\n" \
+- "3: mov %0, %3\n" \
++ "3: # return -EFAULT\n" \
++ " mov %0, %3\n" \
++ " # zero out dst ptr\n" \
++ " mov %1, 0\n" \
++ " mov %R1, 0\n" \
+ " j 2b\n" \
+ " .previous\n" \
+ " .section __ex_table, \"a\"\n" \
+diff --git a/arch/arm/boot/dts/imx6qdl.dtsi b/arch/arm/boot/dts/imx6qdl.dtsi
+index 2b6cc8bf3c5c..e6af41c4bbc1 100644
+--- a/arch/arm/boot/dts/imx6qdl.dtsi
++++ b/arch/arm/boot/dts/imx6qdl.dtsi
+@@ -221,7 +221,7 @@
+ clocks = <&clks IMX6QDL_CLK_SPDIF_GCLK>, <&clks IMX6QDL_CLK_OSC>,
+ <&clks IMX6QDL_CLK_SPDIF>, <&clks IMX6QDL_CLK_ASRC>,
+ <&clks IMX6QDL_CLK_DUMMY>, <&clks IMX6QDL_CLK_ESAI_EXTAL>,
+- <&clks IMX6QDL_CLK_IPG>, <&clks IMX6QDL_CLK_MLB>,
++ <&clks IMX6QDL_CLK_IPG>, <&clks IMX6QDL_CLK_DUMMY>,
+ <&clks IMX6QDL_CLK_DUMMY>, <&clks IMX6QDL_CLK_SPBA>;
+ clock-names = "core", "rxtx0",
+ "rxtx1", "rxtx2",
+diff --git a/arch/arm/boot/dts/kirkwood-ib62x0.dts b/arch/arm/boot/dts/kirkwood-ib62x0.dts
+index bfa5edde179c..2c1e7f09205f 100644
+--- a/arch/arm/boot/dts/kirkwood-ib62x0.dts
++++ b/arch/arm/boot/dts/kirkwood-ib62x0.dts
+@@ -113,7 +113,7 @@
+
+ partition@e0000 {
+ label = "u-boot environment";
+- reg = <0xe0000 0x100000>;
++ reg = <0xe0000 0x20000>;
+ };
+
+ partition@100000 {
+diff --git a/arch/arm/boot/dts/omap3-overo-base.dtsi b/arch/arm/boot/dts/omap3-overo-base.dtsi
+index a29ad16cc9bb..64c5af30c1d0 100644
+--- a/arch/arm/boot/dts/omap3-overo-base.dtsi
++++ b/arch/arm/boot/dts/omap3-overo-base.dtsi
+@@ -223,7 +223,9 @@
+ };
+
+ &gpmc {
+- ranges = <0 0 0x00000000 0x20000000>;
++ ranges = <0 0 0x30000000 0x1000000>, /* CS0 */
++ <4 0 0x2b000000 0x1000000>, /* CS4 */
++ <5 0 0x2c000000 0x1000000>; /* CS5 */
+
+ nand@0,0 {
+ linux,mtd-name= "micron,mt29c4g96maz";
+diff --git a/arch/arm/boot/dts/omap3-overo-chestnut43-common.dtsi b/arch/arm/boot/dts/omap3-overo-chestnut43-common.dtsi
+index 17b82f82638a..64047788216b 100644
+--- a/arch/arm/boot/dts/omap3-overo-chestnut43-common.dtsi
++++ b/arch/arm/boot/dts/omap3-overo-chestnut43-common.dtsi
+@@ -55,8 +55,6 @@
+ #include "omap-gpmc-smsc9221.dtsi"
+
+ &gpmc {
+- ranges = <5 0 0x2c000000 0x1000000>; /* CS5 */
+-
+ ethernet@gpmc {
+ reg = <5 0 0xff>;
+ interrupt-parent = <&gpio6>;
+diff --git a/arch/arm/boot/dts/omap3-overo-tobi-common.dtsi b/arch/arm/boot/dts/omap3-overo-tobi-common.dtsi
+index 9e24b6a1d07b..1b304e2f1bd2 100644
+--- a/arch/arm/boot/dts/omap3-overo-tobi-common.dtsi
++++ b/arch/arm/boot/dts/omap3-overo-tobi-common.dtsi
+@@ -27,8 +27,6 @@
+ #include "omap-gpmc-smsc9221.dtsi"
+
+ &gpmc {
+- ranges = <5 0 0x2c000000 0x1000000>; /* CS5 */
+-
+ ethernet@gpmc {
+ reg = <5 0 0xff>;
+ interrupt-parent = <&gpio6>;
+diff --git a/arch/arm/boot/dts/omap3-overo-tobiduo-common.dtsi b/arch/arm/boot/dts/omap3-overo-tobiduo-common.dtsi
+index 334109e14613..82e98ee3023a 100644
+--- a/arch/arm/boot/dts/omap3-overo-tobiduo-common.dtsi
++++ b/arch/arm/boot/dts/omap3-overo-tobiduo-common.dtsi
+@@ -15,9 +15,6 @@
+ #include "omap-gpmc-smsc9221.dtsi"
+
+ &gpmc {
+- ranges = <4 0 0x2b000000 0x1000000>, /* CS4 */
+- <5 0 0x2c000000 0x1000000>; /* CS5 */
+-
+ smsc1: ethernet@gpmc {
+ reg = <5 0 0xff>;
+ interrupt-parent = <&gpio6>;
+diff --git a/arch/arm/boot/dts/stih407-family.dtsi b/arch/arm/boot/dts/stih407-family.dtsi
+index 81f81214cdf9..bbf95375cf99 100644
+--- a/arch/arm/boot/dts/stih407-family.dtsi
++++ b/arch/arm/boot/dts/stih407-family.dtsi
+@@ -497,8 +497,9 @@
+ interrupt-names = "mmcirq";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_mmc0>;
+- clock-names = "mmc";
+- clocks = <&clk_s_c0_flexgen CLK_MMC_0>;
++ clock-names = "mmc", "icn";
++ clocks = <&clk_s_c0_flexgen CLK_MMC_0>,
++ <&clk_s_c0_flexgen CLK_RX_ICN_HVA>;
+ bus-width = <8>;
+ non-removable;
+ };
+@@ -512,8 +513,9 @@
+ interrupt-names = "mmcirq";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_sd1>;
+- clock-names = "mmc";
+- clocks = <&clk_s_c0_flexgen CLK_MMC_1>;
++ clock-names = "mmc", "icn";
++ clocks = <&clk_s_c0_flexgen CLK_MMC_1>,
++ <&clk_s_c0_flexgen CLK_RX_ICN_HVA>;
+ resets = <&softreset STIH407_MMC1_SOFTRESET>;
+ bus-width = <4>;
+ };
+diff --git a/arch/arm/boot/dts/stih410.dtsi b/arch/arm/boot/dts/stih410.dtsi
+index 18ed1ad10d32..40318869c733 100644
+--- a/arch/arm/boot/dts/stih410.dtsi
++++ b/arch/arm/boot/dts/stih410.dtsi
+@@ -41,7 +41,8 @@
+ compatible = "st,st-ohci-300x";
+ reg = <0x9a03c00 0x100>;
+ interrupts = <GIC_SPI 180 IRQ_TYPE_NONE>;
+- clocks = <&clk_s_c0_flexgen CLK_TX_ICN_DISP_0>;
++ clocks = <&clk_s_c0_flexgen CLK_TX_ICN_DISP_0>,
++ <&clk_s_c0_flexgen CLK_RX_ICN_DISP_0>;
+ resets = <&powerdown STIH407_USB2_PORT0_POWERDOWN>,
+ <&softreset STIH407_USB2_PORT0_SOFTRESET>;
+ reset-names = "power", "softreset";
+@@ -57,7 +58,8 @@
+ interrupts = <GIC_SPI 151 IRQ_TYPE_NONE>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_usb0>;
+- clocks = <&clk_s_c0_flexgen CLK_TX_ICN_DISP_0>;
++ clocks = <&clk_s_c0_flexgen CLK_TX_ICN_DISP_0>,
++ <&clk_s_c0_flexgen CLK_RX_ICN_DISP_0>;
+ resets = <&powerdown STIH407_USB2_PORT0_POWERDOWN>,
+ <&softreset STIH407_USB2_PORT0_SOFTRESET>;
+ reset-names = "power", "softreset";
+@@ -71,7 +73,8 @@
+ compatible = "st,st-ohci-300x";
+ reg = <0x9a83c00 0x100>;
+ interrupts = <GIC_SPI 181 IRQ_TYPE_NONE>;
+- clocks = <&clk_s_c0_flexgen CLK_TX_ICN_DISP_0>;
++ clocks = <&clk_s_c0_flexgen CLK_TX_ICN_DISP_0>,
++ <&clk_s_c0_flexgen CLK_RX_ICN_DISP_0>;
+ resets = <&powerdown STIH407_USB2_PORT1_POWERDOWN>,
+ <&softreset STIH407_USB2_PORT1_SOFTRESET>;
+ reset-names = "power", "softreset";
+@@ -87,7 +90,8 @@
+ interrupts = <GIC_SPI 153 IRQ_TYPE_NONE>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_usb1>;
+- clocks = <&clk_s_c0_flexgen CLK_TX_ICN_DISP_0>;
++ clocks = <&clk_s_c0_flexgen CLK_TX_ICN_DISP_0>,
++ <&clk_s_c0_flexgen CLK_RX_ICN_DISP_0>;
+ resets = <&powerdown STIH407_USB2_PORT1_POWERDOWN>,
+ <&softreset STIH407_USB2_PORT1_SOFTRESET>;
+ reset-names = "power", "softreset";
+diff --git a/arch/arm/kvm/arm.c b/arch/arm/kvm/arm.c
+index e06fd299de08..d7bef2144760 100644
+--- a/arch/arm/kvm/arm.c
++++ b/arch/arm/kvm/arm.c
+@@ -155,8 +155,6 @@ void kvm_arch_destroy_vm(struct kvm *kvm)
+ {
+ int i;
+
+- kvm_free_stage2_pgd(kvm);
+-
+ for (i = 0; i < KVM_MAX_VCPUS; ++i) {
+ if (kvm->vcpus[i]) {
+ kvm_arch_vcpu_free(kvm->vcpus[i]);
+diff --git a/arch/arm/kvm/mmu.c b/arch/arm/kvm/mmu.c
+index 12d727fae0a7..11b6595c2672 100644
+--- a/arch/arm/kvm/mmu.c
++++ b/arch/arm/kvm/mmu.c
+@@ -1852,6 +1852,7 @@ void kvm_arch_memslots_updated(struct kvm *kvm, struct kvm_memslots *slots)
+
+ void kvm_arch_flush_shadow_all(struct kvm *kvm)
+ {
++ kvm_free_stage2_pgd(kvm);
+ }
+
+ void kvm_arch_flush_shadow_memslot(struct kvm *kvm,
+diff --git a/arch/arm/mach-imx/pm-imx6.c b/arch/arm/mach-imx/pm-imx6.c
+index 4470376af5f8..a19d20f23e71 100644
+--- a/arch/arm/mach-imx/pm-imx6.c
++++ b/arch/arm/mach-imx/pm-imx6.c
+@@ -295,7 +295,7 @@ int imx6_set_lpm(enum mxc_cpu_pwr_mode mode)
+ val &= ~BM_CLPCR_SBYOS;
+ if (cpu_is_imx6sl())
+ val |= BM_CLPCR_BYPASS_PMIC_READY;
+- if (cpu_is_imx6sl() || cpu_is_imx6sx())
++ if (cpu_is_imx6sl() || cpu_is_imx6sx() || cpu_is_imx6ul())
+ val |= BM_CLPCR_BYP_MMDC_CH0_LPM_HS;
+ else
+ val |= BM_CLPCR_BYP_MMDC_CH1_LPM_HS;
+@@ -310,7 +310,7 @@ int imx6_set_lpm(enum mxc_cpu_pwr_mode mode)
+ val |= 0x3 << BP_CLPCR_STBY_COUNT;
+ val |= BM_CLPCR_VSTBY;
+ val |= BM_CLPCR_SBYOS;
+- if (cpu_is_imx6sl())
++ if (cpu_is_imx6sl() || cpu_is_imx6sx())
+ val |= BM_CLPCR_BYPASS_PMIC_READY;
+ if (cpu_is_imx6sl() || cpu_is_imx6sx() || cpu_is_imx6ul())
+ val |= BM_CLPCR_BYP_MMDC_CH0_LPM_HS;
+diff --git a/arch/arm/mach-omap2/omap_hwmod_33xx_43xx_ipblock_data.c b/arch/arm/mach-omap2/omap_hwmod_33xx_43xx_ipblock_data.c
+index 907a452b78ea..b31ad596be79 100644
+--- a/arch/arm/mach-omap2/omap_hwmod_33xx_43xx_ipblock_data.c
++++ b/arch/arm/mach-omap2/omap_hwmod_33xx_43xx_ipblock_data.c
+@@ -1474,6 +1474,7 @@ static void omap_hwmod_am43xx_rst(void)
+ {
+ RSTCTRL(am33xx_pruss_hwmod, AM43XX_RM_PER_RSTCTRL_OFFSET);
+ RSTCTRL(am33xx_gfx_hwmod, AM43XX_RM_GFX_RSTCTRL_OFFSET);
++ RSTST(am33xx_pruss_hwmod, AM43XX_RM_PER_RSTST_OFFSET);
+ RSTST(am33xx_gfx_hwmod, AM43XX_RM_GFX_RSTST_OFFSET);
+ }
+
+diff --git a/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c b/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c
+index aff78d5198d2..131f8967589b 100644
+--- a/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c
++++ b/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c
+@@ -723,8 +723,20 @@ static struct omap_hwmod omap3xxx_dss_dispc_hwmod = {
+ * display serial interface controller
+ */
+
++static struct omap_hwmod_class_sysconfig omap3xxx_dsi_sysc = {
++ .rev_offs = 0x0000,
++ .sysc_offs = 0x0010,
++ .syss_offs = 0x0014,
++ .sysc_flags = (SYSC_HAS_AUTOIDLE | SYSC_HAS_CLOCKACTIVITY |
++ SYSC_HAS_ENAWAKEUP | SYSC_HAS_SIDLEMODE |
++ SYSC_HAS_SOFTRESET | SYSS_HAS_RESET_STATUS),
++ .idlemodes = (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART),
++ .sysc_fields = &omap_hwmod_sysc_type1,
++};
++
+ static struct omap_hwmod_class omap3xxx_dsi_hwmod_class = {
+ .name = "dsi",
++ .sysc = &omap3xxx_dsi_sysc,
+ };
+
+ static struct omap_hwmod_irq_info omap3xxx_dsi1_irqs[] = {
+diff --git a/arch/arm/mach-omap2/prcm43xx.h b/arch/arm/mach-omap2/prcm43xx.h
+index 7c34c44eb0ae..babb5db5a3a4 100644
+--- a/arch/arm/mach-omap2/prcm43xx.h
++++ b/arch/arm/mach-omap2/prcm43xx.h
+@@ -39,6 +39,7 @@
+
+ /* RM RSTST offsets */
+ #define AM43XX_RM_GFX_RSTST_OFFSET 0x0014
++#define AM43XX_RM_PER_RSTST_OFFSET 0x0014
+ #define AM43XX_RM_WKUP_RSTST_OFFSET 0x0014
+
+ /* CM instances */
+diff --git a/arch/arm64/include/asm/spinlock.h b/arch/arm64/include/asm/spinlock.h
+index c85e96d174a5..499e8de33a00 100644
+--- a/arch/arm64/include/asm/spinlock.h
++++ b/arch/arm64/include/asm/spinlock.h
+@@ -312,4 +312,14 @@ static inline int arch_read_trylock(arch_rwlock_t *rw)
+ #define arch_read_relax(lock) cpu_relax()
+ #define arch_write_relax(lock) cpu_relax()
+
++/*
++ * Accesses appearing in program order before a spin_lock() operation
++ * can be reordered with accesses inside the critical section, by virtue
++ * of arch_spin_lock being constructed using acquire semantics.
++ *
++ * In cases where this is problematic (e.g. try_to_wake_up), an
++ * smp_mb__before_spinlock() can restore the required ordering.
++ */
++#define smp_mb__before_spinlock() smp_mb()
++
+ #endif /* __ASM_SPINLOCK_H */
+diff --git a/arch/avr32/include/asm/uaccess.h b/arch/avr32/include/asm/uaccess.h
+index 68cf638faf48..b1ec1fa06463 100644
+--- a/arch/avr32/include/asm/uaccess.h
++++ b/arch/avr32/include/asm/uaccess.h
+@@ -74,7 +74,7 @@ extern __kernel_size_t __copy_user(void *to, const void *from,
+
+ extern __kernel_size_t copy_to_user(void __user *to, const void *from,
+ __kernel_size_t n);
+-extern __kernel_size_t copy_from_user(void *to, const void __user *from,
++extern __kernel_size_t ___copy_from_user(void *to, const void __user *from,
+ __kernel_size_t n);
+
+ static inline __kernel_size_t __copy_to_user(void __user *to, const void *from,
+@@ -88,6 +88,15 @@ static inline __kernel_size_t __copy_from_user(void *to,
+ {
+ return __copy_user(to, (const void __force *)from, n);
+ }
++static inline __kernel_size_t copy_from_user(void *to,
++ const void __user *from,
++ __kernel_size_t n)
++{
++ size_t res = ___copy_from_user(to, from, n);
++ if (unlikely(res))
++ memset(to + (n - res), 0, res);
++ return res;
++}
+
+ #define __copy_to_user_inatomic __copy_to_user
+ #define __copy_from_user_inatomic __copy_from_user
+diff --git a/arch/avr32/kernel/avr32_ksyms.c b/arch/avr32/kernel/avr32_ksyms.c
+index d93ead02daed..7c6cf14f0985 100644
+--- a/arch/avr32/kernel/avr32_ksyms.c
++++ b/arch/avr32/kernel/avr32_ksyms.c
+@@ -36,7 +36,7 @@ EXPORT_SYMBOL(copy_page);
+ /*
+ * Userspace access stuff.
+ */
+-EXPORT_SYMBOL(copy_from_user);
++EXPORT_SYMBOL(___copy_from_user);
+ EXPORT_SYMBOL(copy_to_user);
+ EXPORT_SYMBOL(__copy_user);
+ EXPORT_SYMBOL(strncpy_from_user);
+diff --git a/arch/avr32/lib/copy_user.S b/arch/avr32/lib/copy_user.S
+index ea59c04b07de..075373471da1 100644
+--- a/arch/avr32/lib/copy_user.S
++++ b/arch/avr32/lib/copy_user.S
+@@ -23,13 +23,13 @@
+ */
+ .text
+ .align 1
+- .global copy_from_user
+- .type copy_from_user, @function
+-copy_from_user:
++ .global ___copy_from_user
++ .type ___copy_from_user, @function
++___copy_from_user:
+ branch_if_kernel r8, __copy_user
+ ret_if_privileged r8, r11, r10, r10
+ rjmp __copy_user
+- .size copy_from_user, . - copy_from_user
++ .size ___copy_from_user, . - ___copy_from_user
+
+ .global copy_to_user
+ .type copy_to_user, @function
+diff --git a/arch/blackfin/include/asm/uaccess.h b/arch/blackfin/include/asm/uaccess.h
+index 90612a7f2cf3..8cd0184ea9ef 100644
+--- a/arch/blackfin/include/asm/uaccess.h
++++ b/arch/blackfin/include/asm/uaccess.h
+@@ -177,11 +177,12 @@ static inline int bad_user_access_length(void)
+ static inline unsigned long __must_check
+ copy_from_user(void *to, const void __user *from, unsigned long n)
+ {
+- if (access_ok(VERIFY_READ, from, n))
++ if (likely(access_ok(VERIFY_READ, from, n))) {
+ memcpy(to, (const void __force *)from, n);
+- else
+- return n;
+- return 0;
++ return 0;
++ }
++ memset(to, 0, n);
++ return n;
+ }
+
+ static inline unsigned long __must_check
+diff --git a/arch/cris/include/asm/uaccess.h b/arch/cris/include/asm/uaccess.h
+index e3530d0f13ee..56c7d5750abd 100644
+--- a/arch/cris/include/asm/uaccess.h
++++ b/arch/cris/include/asm/uaccess.h
+@@ -194,30 +194,6 @@ extern unsigned long __copy_user(void __user *to, const void *from, unsigned lon
+ extern unsigned long __copy_user_zeroing(void *to, const void __user *from, unsigned long n);
+ extern unsigned long __do_clear_user(void __user *to, unsigned long n);
+
+-static inline unsigned long
+-__generic_copy_to_user(void __user *to, const void *from, unsigned long n)
+-{
+- if (access_ok(VERIFY_WRITE, to, n))
+- return __copy_user(to, from, n);
+- return n;
+-}
+-
+-static inline unsigned long
+-__generic_copy_from_user(void *to, const void __user *from, unsigned long n)
+-{
+- if (access_ok(VERIFY_READ, from, n))
+- return __copy_user_zeroing(to, from, n);
+- return n;
+-}
+-
+-static inline unsigned long
+-__generic_clear_user(void __user *to, unsigned long n)
+-{
+- if (access_ok(VERIFY_WRITE, to, n))
+- return __do_clear_user(to, n);
+- return n;
+-}
+-
+ static inline long
+ __strncpy_from_user(char *dst, const char __user *src, long count)
+ {
+@@ -282,7 +258,7 @@ __constant_copy_from_user(void *to, const void __user *from, unsigned long n)
+ else if (n == 24)
+ __asm_copy_from_user_24(to, from, ret);
+ else
+- ret = __generic_copy_from_user(to, from, n);
++ ret = __copy_user_zeroing(to, from, n);
+
+ return ret;
+ }
+@@ -333,7 +309,7 @@ __constant_copy_to_user(void __user *to, const void *from, unsigned long n)
+ else if (n == 24)
+ __asm_copy_to_user_24(to, from, ret);
+ else
+- ret = __generic_copy_to_user(to, from, n);
++ ret = __copy_user(to, from, n);
+
+ return ret;
+ }
+@@ -366,26 +342,43 @@ __constant_clear_user(void __user *to, unsigned long n)
+ else if (n == 24)
+ __asm_clear_24(to, ret);
+ else
+- ret = __generic_clear_user(to, n);
++ ret = __do_clear_user(to, n);
+
+ return ret;
+ }
+
+
+-#define clear_user(to, n) \
+- (__builtin_constant_p(n) ? \
+- __constant_clear_user(to, n) : \
+- __generic_clear_user(to, n))
++static inline size_t clear_user(void __user *to, size_t n)
++{
++ if (unlikely(!access_ok(VERIFY_WRITE, to, n)))
++ return n;
++ if (__builtin_constant_p(n))
++ return __constant_clear_user(to, n);
++ else
++ return __do_clear_user(to, n);
++}
+
+-#define copy_from_user(to, from, n) \
+- (__builtin_constant_p(n) ? \
+- __constant_copy_from_user(to, from, n) : \
+- __generic_copy_from_user(to, from, n))
++static inline size_t copy_from_user(void *to, const void __user *from, size_t n)
++{
++ if (unlikely(!access_ok(VERIFY_READ, from, n))) {
++ memset(to, 0, n);
++ return n;
++ }
++ if (__builtin_constant_p(n))
++ return __constant_copy_from_user(to, from, n);
++ else
++ return __copy_user_zeroing(to, from, n);
++}
+
+-#define copy_to_user(to, from, n) \
+- (__builtin_constant_p(n) ? \
+- __constant_copy_to_user(to, from, n) : \
+- __generic_copy_to_user(to, from, n))
++static inline size_t copy_to_user(void __user *to, const void *from, size_t n)
++{
++ if (unlikely(!access_ok(VERIFY_WRITE, to, n)))
++ return n;
++ if (__builtin_constant_p(n))
++ return __constant_copy_to_user(to, from, n);
++ else
++ return __copy_user(to, from, n);
++}
+
+ /* We let the __ versions of copy_from/to_user inline, because they're often
+ * used in fast paths and have only a small space overhead.
+diff --git a/arch/frv/include/asm/uaccess.h b/arch/frv/include/asm/uaccess.h
+index 3ac9a59d65d4..87d9e34c5df8 100644
+--- a/arch/frv/include/asm/uaccess.h
++++ b/arch/frv/include/asm/uaccess.h
+@@ -263,19 +263,25 @@ do { \
+ extern long __memset_user(void *dst, unsigned long count);
+ extern long __memcpy_user(void *dst, const void *src, unsigned long count);
+
+-#define clear_user(dst,count) __memset_user(____force(dst), (count))
++#define __clear_user(dst,count) __memset_user(____force(dst), (count))
+ #define __copy_from_user_inatomic(to, from, n) __memcpy_user((to), ____force(from), (n))
+ #define __copy_to_user_inatomic(to, from, n) __memcpy_user(____force(to), (from), (n))
+
+ #else
+
+-#define clear_user(dst,count) (memset(____force(dst), 0, (count)), 0)
++#define __clear_user(dst,count) (memset(____force(dst), 0, (count)), 0)
+ #define __copy_from_user_inatomic(to, from, n) (memcpy((to), ____force(from), (n)), 0)
+ #define __copy_to_user_inatomic(to, from, n) (memcpy(____force(to), (from), (n)), 0)
+
+ #endif
+
+-#define __clear_user clear_user
++static inline unsigned long __must_check
++clear_user(void __user *to, unsigned long n)
++{
++ if (likely(__access_ok(to, n)))
++ n = __clear_user(to, n);
++ return n;
++}
+
+ static inline unsigned long __must_check
+ __copy_to_user(void __user *to, const void *from, unsigned long n)
+diff --git a/arch/hexagon/include/asm/uaccess.h b/arch/hexagon/include/asm/uaccess.h
+index f000a382bc7f..f61cfb28e9f2 100644
+--- a/arch/hexagon/include/asm/uaccess.h
++++ b/arch/hexagon/include/asm/uaccess.h
+@@ -103,7 +103,8 @@ static inline long hexagon_strncpy_from_user(char *dst, const char __user *src,
+ {
+ long res = __strnlen_user(src, n);
+
+- /* return from strnlen can't be zero -- that would be rubbish. */
++ if (unlikely(!res))
++ return -EFAULT;
+
+ if (res > n) {
+ copy_from_user(dst, src, n);
+diff --git a/arch/ia64/include/asm/uaccess.h b/arch/ia64/include/asm/uaccess.h
+index 4f3fb6ccbf21..40c2027a2bf4 100644
+--- a/arch/ia64/include/asm/uaccess.h
++++ b/arch/ia64/include/asm/uaccess.h
+@@ -263,17 +263,15 @@ __copy_from_user (void *to, const void __user *from, unsigned long count)
+ __cu_len; \
+ })
+
+-#define copy_from_user(to, from, n) \
+-({ \
+- void *__cu_to = (to); \
+- const void __user *__cu_from = (from); \
+- long __cu_len = (n); \
+- \
+- __chk_user_ptr(__cu_from); \
+- if (__access_ok(__cu_from, __cu_len, get_fs())) \
+- __cu_len = __copy_user((__force void __user *) __cu_to, __cu_from, __cu_len); \
+- __cu_len; \
+-})
++static inline unsigned long
++copy_from_user(void *to, const void __user *from, unsigned long n)
++{
++ if (likely(__access_ok(from, n, get_fs())))
++ n = __copy_user((__force void __user *) to, from, n);
++ else
++ memset(to, 0, n);
++ return n;
++}
+
+ #define __copy_in_user(to, from, size) __copy_user((to), (from), (size))
+
+diff --git a/arch/m32r/include/asm/uaccess.h b/arch/m32r/include/asm/uaccess.h
+index cac7014daef3..6f8982157a75 100644
+--- a/arch/m32r/include/asm/uaccess.h
++++ b/arch/m32r/include/asm/uaccess.h
+@@ -219,7 +219,7 @@ extern int fixup_exception(struct pt_regs *regs);
+ #define __get_user_nocheck(x, ptr, size) \
+ ({ \
+ long __gu_err = 0; \
+- unsigned long __gu_val; \
++ unsigned long __gu_val = 0; \
+ might_fault(); \
+ __get_user_size(__gu_val, (ptr), (size), __gu_err); \
+ (x) = (__force __typeof__(*(ptr)))__gu_val; \
+diff --git a/arch/metag/include/asm/uaccess.h b/arch/metag/include/asm/uaccess.h
+index 8282cbce7e39..273e61225c27 100644
+--- a/arch/metag/include/asm/uaccess.h
++++ b/arch/metag/include/asm/uaccess.h
+@@ -204,8 +204,9 @@ extern unsigned long __must_check __copy_user_zeroing(void *to,
+ static inline unsigned long
+ copy_from_user(void *to, const void __user *from, unsigned long n)
+ {
+- if (access_ok(VERIFY_READ, from, n))
++ if (likely(access_ok(VERIFY_READ, from, n)))
+ return __copy_user_zeroing(to, from, n);
++ memset(to, 0, n);
+ return n;
+ }
+
+diff --git a/arch/microblaze/include/asm/uaccess.h b/arch/microblaze/include/asm/uaccess.h
+index 331b0d35f89c..826676778094 100644
+--- a/arch/microblaze/include/asm/uaccess.h
++++ b/arch/microblaze/include/asm/uaccess.h
+@@ -227,7 +227,7 @@ extern long __user_bad(void);
+
+ #define __get_user(x, ptr) \
+ ({ \
+- unsigned long __gu_val; \
++ unsigned long __gu_val = 0; \
+ /*unsigned long __gu_ptr = (unsigned long)(ptr);*/ \
+ long __gu_err; \
+ switch (sizeof(*(ptr))) { \
+@@ -373,10 +373,13 @@ extern long __user_bad(void);
+ static inline long copy_from_user(void *to,
+ const void __user *from, unsigned long n)
+ {
++ unsigned long res = n;
+ might_fault();
+- if (access_ok(VERIFY_READ, from, n))
+- return __copy_from_user(to, from, n);
+- return n;
++ if (likely(access_ok(VERIFY_READ, from, n)))
++ res = __copy_from_user(to, from, n);
++ if (unlikely(res))
++ memset(to + (n - res), 0, res);
++ return res;
+ }
+
+ #define __copy_to_user(to, from, n) \
+diff --git a/arch/mips/include/asm/uaccess.h b/arch/mips/include/asm/uaccess.h
+index 095ecafe6bd3..c74c32ccc647 100644
+--- a/arch/mips/include/asm/uaccess.h
++++ b/arch/mips/include/asm/uaccess.h
+@@ -14,6 +14,7 @@
+ #include <linux/kernel.h>
+ #include <linux/errno.h>
+ #include <linux/thread_info.h>
++#include <linux/string.h>
+ #include <asm/asm-eva.h>
+
+ /*
+@@ -1170,6 +1171,8 @@ extern size_t __copy_in_user_eva(void *__to, const void *__from, size_t __n);
+ __cu_len = __invoke_copy_from_user(__cu_to, \
+ __cu_from, \
+ __cu_len); \
++ } else { \
++ memset(__cu_to, 0, __cu_len); \
+ } \
+ } \
+ __cu_len; \
+diff --git a/arch/mips/kvm/tlb.c b/arch/mips/kvm/tlb.c
+index 7a7ed9ca01bb..eff71c75dc27 100644
+--- a/arch/mips/kvm/tlb.c
++++ b/arch/mips/kvm/tlb.c
+@@ -152,7 +152,7 @@ static int kvm_mips_map_page(struct kvm *kvm, gfn_t gfn)
+ srcu_idx = srcu_read_lock(&kvm->srcu);
+ pfn = kvm_mips_gfn_to_pfn(kvm, gfn);
+
+- if (kvm_mips_is_error_pfn(pfn)) {
++ if (is_error_noslot_pfn(pfn)) {
+ kvm_err("Couldn't get pfn for gfn %#" PRIx64 "!\n", gfn);
+ err = -EFAULT;
+ goto out;
+diff --git a/arch/mn10300/include/asm/uaccess.h b/arch/mn10300/include/asm/uaccess.h
+index 537278746a15..4af43d9ba495 100644
+--- a/arch/mn10300/include/asm/uaccess.h
++++ b/arch/mn10300/include/asm/uaccess.h
+@@ -181,6 +181,7 @@ struct __large_struct { unsigned long buf[100]; };
+ "2:\n" \
+ " .section .fixup,\"ax\"\n" \
+ "3:\n\t" \
++ " mov 0,%1\n" \
+ " mov %3,%0\n" \
+ " jmp 2b\n" \
+ " .previous\n" \
+diff --git a/arch/mn10300/lib/usercopy.c b/arch/mn10300/lib/usercopy.c
+index 7826e6c364e7..ce8899e5e171 100644
+--- a/arch/mn10300/lib/usercopy.c
++++ b/arch/mn10300/lib/usercopy.c
+@@ -9,7 +9,7 @@
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+-#include <asm/uaccess.h>
++#include <linux/uaccess.h>
+
+ unsigned long
+ __generic_copy_to_user(void *to, const void *from, unsigned long n)
+@@ -24,6 +24,8 @@ __generic_copy_from_user(void *to, const void *from, unsigned long n)
+ {
+ if (access_ok(VERIFY_READ, from, n))
+ __copy_user_zeroing(to, from, n);
++ else
++ memset(to, 0, n);
+ return n;
+ }
+
+diff --git a/arch/nios2/include/asm/uaccess.h b/arch/nios2/include/asm/uaccess.h
+index caa51ff85a3c..0ab82324c817 100644
+--- a/arch/nios2/include/asm/uaccess.h
++++ b/arch/nios2/include/asm/uaccess.h
+@@ -102,9 +102,12 @@ extern long __copy_to_user(void __user *to, const void *from, unsigned long n);
+ static inline long copy_from_user(void *to, const void __user *from,
+ unsigned long n)
+ {
+- if (!access_ok(VERIFY_READ, from, n))
+- return n;
+- return __copy_from_user(to, from, n);
++ unsigned long res = n;
++ if (access_ok(VERIFY_READ, from, n))
++ res = __copy_from_user(to, from, n);
++ if (unlikely(res))
++ memset(to + (n - res), 0, res);
++ return res;
+ }
+
+ static inline long copy_to_user(void __user *to, const void *from,
+@@ -139,7 +142,7 @@ extern long strnlen_user(const char __user *s, long n);
+
+ #define __get_user_unknown(val, size, ptr, err) do { \
+ err = 0; \
+- if (copy_from_user(&(val), ptr, size)) { \
++ if (__copy_from_user(&(val), ptr, size)) { \
+ err = -EFAULT; \
+ } \
+ } while (0)
+@@ -166,7 +169,7 @@ do { \
+ ({ \
+ long __gu_err = -EFAULT; \
+ const __typeof__(*(ptr)) __user *__gu_ptr = (ptr); \
+- unsigned long __gu_val; \
++ unsigned long __gu_val = 0; \
+ __get_user_common(__gu_val, sizeof(*(ptr)), __gu_ptr, __gu_err);\
+ (x) = (__force __typeof__(x))__gu_val; \
+ __gu_err; \
+diff --git a/arch/openrisc/include/asm/uaccess.h b/arch/openrisc/include/asm/uaccess.h
+index a6bd07ca3d6c..5cc6b4f1b795 100644
+--- a/arch/openrisc/include/asm/uaccess.h
++++ b/arch/openrisc/include/asm/uaccess.h
+@@ -273,28 +273,20 @@ __copy_tofrom_user(void *to, const void *from, unsigned long size);
+ static inline unsigned long
+ copy_from_user(void *to, const void *from, unsigned long n)
+ {
+- unsigned long over;
+-
+- if (access_ok(VERIFY_READ, from, n))
+- return __copy_tofrom_user(to, from, n);
+- if ((unsigned long)from < TASK_SIZE) {
+- over = (unsigned long)from + n - TASK_SIZE;
+- return __copy_tofrom_user(to, from, n - over) + over;
+- }
+- return n;
++ unsigned long res = n;
++
++ if (likely(access_ok(VERIFY_READ, from, n)))
++ res = __copy_tofrom_user(to, from, n);
++ if (unlikely(res))
++ memset(to + (n - res), 0, res);
++ return res;
+ }
+
+ static inline unsigned long
+ copy_to_user(void *to, const void *from, unsigned long n)
+ {
+- unsigned long over;
+-
+- if (access_ok(VERIFY_WRITE, to, n))
+- return __copy_tofrom_user(to, from, n);
+- if ((unsigned long)to < TASK_SIZE) {
+- over = (unsigned long)to + n - TASK_SIZE;
+- return __copy_tofrom_user(to, from, n - over) + over;
+- }
++ if (likely(access_ok(VERIFY_WRITE, to, n)))
++ n = __copy_tofrom_user(to, from, n);
+ return n;
+ }
+
+@@ -303,13 +295,8 @@ extern unsigned long __clear_user(void *addr, unsigned long size);
+ static inline __must_check unsigned long
+ clear_user(void *addr, unsigned long size)
+ {
+-
+- if (access_ok(VERIFY_WRITE, addr, size))
+- return __clear_user(addr, size);
+- if ((unsigned long)addr < TASK_SIZE) {
+- unsigned long over = (unsigned long)addr + size - TASK_SIZE;
+- return __clear_user(addr, size - over) + over;
+- }
++ if (likely(access_ok(VERIFY_WRITE, addr, size)))
++ size = __clear_user(addr, size);
+ return size;
+ }
+
+diff --git a/arch/parisc/include/asm/uaccess.h b/arch/parisc/include/asm/uaccess.h
+index 1960b87c1c8b..4ad51465890b 100644
+--- a/arch/parisc/include/asm/uaccess.h
++++ b/arch/parisc/include/asm/uaccess.h
+@@ -10,6 +10,7 @@
+ #include <asm-generic/uaccess-unaligned.h>
+
+ #include <linux/bug.h>
++#include <linux/string.h>
+
+ #define VERIFY_READ 0
+ #define VERIFY_WRITE 1
+@@ -245,13 +246,14 @@ static inline unsigned long __must_check copy_from_user(void *to,
+ unsigned long n)
+ {
+ int sz = __compiletime_object_size(to);
+- int ret = -EFAULT;
++ unsigned long ret = n;
+
+ if (likely(sz == -1 || !__builtin_constant_p(n) || sz >= n))
+ ret = __copy_from_user(to, from, n);
+ else
+ copy_from_user_overflow();
+-
++ if (unlikely(ret))
++ memset(to + (n - ret), 0, ret);
+ return ret;
+ }
+
+diff --git a/arch/powerpc/include/asm/uaccess.h b/arch/powerpc/include/asm/uaccess.h
+index 2a8ebae0936b..a5ffe0207c16 100644
+--- a/arch/powerpc/include/asm/uaccess.h
++++ b/arch/powerpc/include/asm/uaccess.h
+@@ -323,30 +323,17 @@ extern unsigned long __copy_tofrom_user(void __user *to,
+ static inline unsigned long copy_from_user(void *to,
+ const void __user *from, unsigned long n)
+ {
+- unsigned long over;
+-
+- if (access_ok(VERIFY_READ, from, n))
++ if (likely(access_ok(VERIFY_READ, from, n)))
+ return __copy_tofrom_user((__force void __user *)to, from, n);
+- if ((unsigned long)from < TASK_SIZE) {
+- over = (unsigned long)from + n - TASK_SIZE;
+- return __copy_tofrom_user((__force void __user *)to, from,
+- n - over) + over;
+- }
++ memset(to, 0, n);
+ return n;
+ }
+
+ static inline unsigned long copy_to_user(void __user *to,
+ const void *from, unsigned long n)
+ {
+- unsigned long over;
+-
+ if (access_ok(VERIFY_WRITE, to, n))
+ return __copy_tofrom_user(to, (__force void __user *)from, n);
+- if ((unsigned long)to < TASK_SIZE) {
+- over = (unsigned long)to + n - TASK_SIZE;
+- return __copy_tofrom_user(to, (__force void __user *)from,
+- n - over) + over;
+- }
+ return n;
+ }
+
+@@ -437,10 +424,6 @@ static inline unsigned long clear_user(void __user *addr, unsigned long size)
+ might_fault();
+ if (likely(access_ok(VERIFY_WRITE, addr, size)))
+ return __clear_user(addr, size);
+- if ((unsigned long)addr < TASK_SIZE) {
+- unsigned long over = (unsigned long)addr + size - TASK_SIZE;
+- return __clear_user(addr, size - over) + over;
+- }
+ return size;
+ }
+
+diff --git a/arch/powerpc/kernel/entry_64.S b/arch/powerpc/kernel/entry_64.S
+index a94f155db78e..edba294620db 100644
+--- a/arch/powerpc/kernel/entry_64.S
++++ b/arch/powerpc/kernel/entry_64.S
+@@ -334,13 +334,13 @@ syscall_exit_work:
+ tabort_syscall:
+ /* Firstly we need to enable TM in the kernel */
+ mfmsr r10
+- li r13, 1
+- rldimi r10, r13, MSR_TM_LG, 63-MSR_TM_LG
++ li r9, 1
++ rldimi r10, r9, MSR_TM_LG, 63-MSR_TM_LG
+ mtmsrd r10, 0
+
+ /* tabort, this dooms the transaction, nothing else */
+- li r13, (TM_CAUSE_SYSCALL|TM_CAUSE_PERSISTENT)
+- TABORT(R13)
++ li r9, (TM_CAUSE_SYSCALL|TM_CAUSE_PERSISTENT)
++ TABORT(R9)
+
+ /*
+ * Return directly to userspace. We have corrupted user register state,
+@@ -348,8 +348,8 @@ tabort_syscall:
+ * resume after the tbegin of the aborted transaction with the
+ * checkpointed register state.
+ */
+- li r13, MSR_RI
+- andc r10, r10, r13
++ li r9, MSR_RI
++ andc r10, r10, r9
+ mtmsrd r10, 1
+ mtspr SPRN_SRR0, r11
+ mtspr SPRN_SRR1, r12
+diff --git a/arch/powerpc/mm/slb_low.S b/arch/powerpc/mm/slb_low.S
+index 736d18b3cefd..4c48b487698c 100644
+--- a/arch/powerpc/mm/slb_low.S
++++ b/arch/powerpc/mm/slb_low.S
+@@ -113,7 +113,12 @@ BEGIN_FTR_SECTION
+ END_MMU_FTR_SECTION_IFCLR(MMU_FTR_1T_SEGMENT)
+ b slb_finish_load_1T
+
+-0:
++0: /*
++ * For userspace addresses, make sure this is region 0.
++ */
++ cmpdi r9, 0
++ bne 8f
++
+ /* when using slices, we extract the psize off the slice bitmaps
+ * and then we need to get the sllp encoding off the mmu_psize_defs
+ * array.
+diff --git a/arch/powerpc/platforms/powernv/opal-dump.c b/arch/powerpc/platforms/powernv/opal-dump.c
+index 2ee96431f736..4c827826c05e 100644
+--- a/arch/powerpc/platforms/powernv/opal-dump.c
++++ b/arch/powerpc/platforms/powernv/opal-dump.c
+@@ -370,6 +370,7 @@ static irqreturn_t process_dump(int irq, void *data)
+ uint32_t dump_id, dump_size, dump_type;
+ struct dump_obj *dump;
+ char name[22];
++ struct kobject *kobj;
+
+ rc = dump_read_info(&dump_id, &dump_size, &dump_type);
+ if (rc != OPAL_SUCCESS)
+@@ -381,8 +382,12 @@ static irqreturn_t process_dump(int irq, void *data)
+ * that gracefully and not create two conflicting
+ * entries.
+ */
+- if (kset_find_obj(dump_kset, name))
++ kobj = kset_find_obj(dump_kset, name);
++ if (kobj) {
++ /* Drop reference added by kset_find_obj() */
++ kobject_put(kobj);
+ return 0;
++ }
+
+ dump = create_dump_obj(dump_id, dump_size, dump_type);
+ if (!dump)
+diff --git a/arch/powerpc/platforms/powernv/opal-elog.c b/arch/powerpc/platforms/powernv/opal-elog.c
+index 37f959bf392e..f2344cbd2f46 100644
+--- a/arch/powerpc/platforms/powernv/opal-elog.c
++++ b/arch/powerpc/platforms/powernv/opal-elog.c
+@@ -247,6 +247,7 @@ static irqreturn_t elog_event(int irq, void *data)
+ uint64_t elog_type;
+ int rc;
+ char name[2+16+1];
++ struct kobject *kobj;
+
+ rc = opal_get_elog_size(&id, &size, &type);
+ if (rc != OPAL_SUCCESS) {
+@@ -269,8 +270,12 @@ static irqreturn_t elog_event(int irq, void *data)
+ * that gracefully and not create two conflicting
+ * entries.
+ */
+- if (kset_find_obj(elog_kset, name))
++ kobj = kset_find_obj(elog_kset, name);
++ if (kobj) {
++ /* Drop reference added by kset_find_obj() */
++ kobject_put(kobj);
+ return IRQ_HANDLED;
++ }
+
+ create_elog_obj(log_id, elog_size, elog_type);
+
+diff --git a/arch/s390/include/asm/uaccess.h b/arch/s390/include/asm/uaccess.h
+index 9dd4cc47ddc7..5c7381c5ad7f 100644
+--- a/arch/s390/include/asm/uaccess.h
++++ b/arch/s390/include/asm/uaccess.h
+@@ -215,28 +215,28 @@ int __put_user_bad(void) __attribute__((noreturn));
+ __chk_user_ptr(ptr); \
+ switch (sizeof(*(ptr))) { \
+ case 1: { \
+- unsigned char __x; \
++ unsigned char __x = 0; \
+ __gu_err = __get_user_fn(&__x, ptr, \
+ sizeof(*(ptr))); \
+ (x) = *(__force __typeof__(*(ptr)) *) &__x; \
+ break; \
+ }; \
+ case 2: { \
+- unsigned short __x; \
++ unsigned short __x = 0; \
+ __gu_err = __get_user_fn(&__x, ptr, \
+ sizeof(*(ptr))); \
+ (x) = *(__force __typeof__(*(ptr)) *) &__x; \
+ break; \
+ }; \
+ case 4: { \
+- unsigned int __x; \
++ unsigned int __x = 0; \
+ __gu_err = __get_user_fn(&__x, ptr, \
+ sizeof(*(ptr))); \
+ (x) = *(__force __typeof__(*(ptr)) *) &__x; \
+ break; \
+ }; \
+ case 8: { \
+- unsigned long long __x; \
++ unsigned long long __x = 0; \
+ __gu_err = __get_user_fn(&__x, ptr, \
+ sizeof(*(ptr))); \
+ (x) = *(__force __typeof__(*(ptr)) *) &__x; \
+diff --git a/arch/score/include/asm/uaccess.h b/arch/score/include/asm/uaccess.h
+index 20a3591225cc..01aec8ccde83 100644
+--- a/arch/score/include/asm/uaccess.h
++++ b/arch/score/include/asm/uaccess.h
+@@ -163,7 +163,7 @@ do { \
+ __get_user_asm(val, "lw", ptr); \
+ break; \
+ case 8: \
+- if ((copy_from_user((void *)&val, ptr, 8)) == 0) \
++ if (__copy_from_user((void *)&val, ptr, 8) == 0) \
+ __gu_err = 0; \
+ else \
+ __gu_err = -EFAULT; \
+@@ -188,6 +188,8 @@ do { \
+ \
+ if (likely(access_ok(VERIFY_READ, __gu_ptr, size))) \
+ __get_user_common((x), size, __gu_ptr); \
++ else \
++ (x) = 0; \
+ \
+ __gu_err; \
+ })
+@@ -201,6 +203,7 @@ do { \
+ "2:\n" \
+ ".section .fixup,\"ax\"\n" \
+ "3:li %0, %4\n" \
++ "li %1, 0\n" \
+ "j 2b\n" \
+ ".previous\n" \
+ ".section __ex_table,\"a\"\n" \
+@@ -298,35 +301,34 @@ extern int __copy_tofrom_user(void *to, const void *from, unsigned long len);
+ static inline unsigned long
+ copy_from_user(void *to, const void *from, unsigned long len)
+ {
+- unsigned long over;
++ unsigned long res = len;
+
+- if (access_ok(VERIFY_READ, from, len))
+- return __copy_tofrom_user(to, from, len);
++ if (likely(access_ok(VERIFY_READ, from, len)))
++ res = __copy_tofrom_user(to, from, len);
+
+- if ((unsigned long)from < TASK_SIZE) {
+- over = (unsigned long)from + len - TASK_SIZE;
+- return __copy_tofrom_user(to, from, len - over) + over;
+- }
+- return len;
++ if (unlikely(res))
++ memset(to + (len - res), 0, res);
++
++ return res;
+ }
+
+ static inline unsigned long
+ copy_to_user(void *to, const void *from, unsigned long len)
+ {
+- unsigned long over;
+-
+- if (access_ok(VERIFY_WRITE, to, len))
+- return __copy_tofrom_user(to, from, len);
++ if (likely(access_ok(VERIFY_WRITE, to, len)))
++ len = __copy_tofrom_user(to, from, len);
+
+- if ((unsigned long)to < TASK_SIZE) {
+- over = (unsigned long)to + len - TASK_SIZE;
+- return __copy_tofrom_user(to, from, len - over) + over;
+- }
+ return len;
+ }
+
+-#define __copy_from_user(to, from, len) \
+- __copy_tofrom_user((to), (from), (len))
++static inline unsigned long
++__copy_from_user(void *to, const void *from, unsigned long len)
++{
++ unsigned long left = __copy_tofrom_user(to, from, len);
++ if (unlikely(left))
++ memset(to + (len - left), 0, left);
++ return left;
++}
+
+ #define __copy_to_user(to, from, len) \
+ __copy_tofrom_user((to), (from), (len))
+@@ -340,17 +342,17 @@ __copy_to_user_inatomic(void *to, const void *from, unsigned long len)
+ static inline unsigned long
+ __copy_from_user_inatomic(void *to, const void *from, unsigned long len)
+ {
+- return __copy_from_user(to, from, len);
++ return __copy_tofrom_user(to, from, len);
+ }
+
+-#define __copy_in_user(to, from, len) __copy_from_user(to, from, len)
++#define __copy_in_user(to, from, len) __copy_tofrom_user(to, from, len)
+
+ static inline unsigned long
+ copy_in_user(void *to, const void *from, unsigned long len)
+ {
+ if (access_ok(VERIFY_READ, from, len) &&
+ access_ok(VERFITY_WRITE, to, len))
+- return copy_from_user(to, from, len);
++ return __copy_tofrom_user(to, from, len);
+ }
+
+ /*
+diff --git a/arch/sh/include/asm/uaccess.h b/arch/sh/include/asm/uaccess.h
+index a49635c51266..92ade79ac427 100644
+--- a/arch/sh/include/asm/uaccess.h
++++ b/arch/sh/include/asm/uaccess.h
+@@ -151,7 +151,10 @@ copy_from_user(void *to, const void __user *from, unsigned long n)
+ __kernel_size_t __copy_size = (__kernel_size_t) n;
+
+ if (__copy_size && __access_ok(__copy_from, __copy_size))
+- return __copy_user(to, from, __copy_size);
++ __copy_size = __copy_user(to, from, __copy_size);
++
++ if (unlikely(__copy_size))
++ memset(to + (n - __copy_size), 0, __copy_size);
+
+ return __copy_size;
+ }
+diff --git a/arch/sh/include/asm/uaccess_64.h b/arch/sh/include/asm/uaccess_64.h
+index c01376c76b86..ca5073dd4596 100644
+--- a/arch/sh/include/asm/uaccess_64.h
++++ b/arch/sh/include/asm/uaccess_64.h
+@@ -24,6 +24,7 @@
+ #define __get_user_size(x,ptr,size,retval) \
+ do { \
+ retval = 0; \
++ x = 0; \
+ switch (size) { \
+ case 1: \
+ retval = __get_user_asm_b((void *)&x, \
+diff --git a/arch/sparc/include/asm/uaccess_32.h b/arch/sparc/include/asm/uaccess_32.h
+index 64ee103dc29d..dfb542c7cc71 100644
+--- a/arch/sparc/include/asm/uaccess_32.h
++++ b/arch/sparc/include/asm/uaccess_32.h
+@@ -328,8 +328,10 @@ static inline unsigned long copy_from_user(void *to, const void __user *from, un
+ {
+ if (n && __access_ok((unsigned long) from, n))
+ return __copy_user((__force void __user *) to, from, n);
+- else
++ else {
++ memset(to, 0, n);
+ return n;
++ }
+ }
+
+ static inline unsigned long __copy_from_user(void *to, const void __user *from, unsigned long n)
+diff --git a/arch/x86/configs/tiny.config b/arch/x86/configs/tiny.config
+index 4e2ecfa23c15..4b429df40d7a 100644
+--- a/arch/x86/configs/tiny.config
++++ b/arch/x86/configs/tiny.config
+@@ -1 +1,3 @@
+ CONFIG_NOHIGHMEM=y
++# CONFIG_HIGHMEM4G is not set
++# CONFIG_HIGHMEM64G is not set
+diff --git a/arch/x86/include/asm/uaccess.h b/arch/x86/include/asm/uaccess.h
+index 09b1b0ab94b7..d42252ce9b4d 100644
+--- a/arch/x86/include/asm/uaccess.h
++++ b/arch/x86/include/asm/uaccess.h
+@@ -394,7 +394,11 @@ do { \
+ #define __get_user_asm_ex(x, addr, itype, rtype, ltype) \
+ asm volatile("1: mov"itype" %1,%"rtype"0\n" \
+ "2:\n" \
+- _ASM_EXTABLE_EX(1b, 2b) \
++ ".section .fixup,\"ax\"\n" \
++ "3:xor"itype" %"rtype"0,%"rtype"0\n" \
++ " jmp 2b\n" \
++ ".previous\n" \
++ _ASM_EXTABLE_EX(1b, 3b) \
+ : ltype(x) : "m" (__m(addr)))
+
+ #define __put_user_nocheck(x, ptr, size) \
+diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c
+index a8816b325162..6cb5834062a3 100644
+--- a/arch/x86/kernel/cpu/amd.c
++++ b/arch/x86/kernel/cpu/amd.c
+@@ -656,6 +656,17 @@ static void init_amd_gh(struct cpuinfo_x86 *c)
+ set_cpu_bug(c, X86_BUG_AMD_TLB_MMATCH);
+ }
+
++#define MSR_AMD64_DE_CFG 0xC0011029
++
++static void init_amd_ln(struct cpuinfo_x86 *c)
++{
++ /*
++ * Apply erratum 665 fix unconditionally so machines without a BIOS
++ * fix work.
++ */
++ msr_set_bit(MSR_AMD64_DE_CFG, 31);
++}
++
+ static void init_amd_bd(struct cpuinfo_x86 *c)
+ {
+ u64 value;
+@@ -713,6 +724,7 @@ static void init_amd(struct cpuinfo_x86 *c)
+ case 6: init_amd_k7(c); break;
+ case 0xf: init_amd_k8(c); break;
+ case 0x10: init_amd_gh(c); break;
++ case 0x12: init_amd_ln(c); break;
+ case 0x15: init_amd_bd(c); break;
+ }
+
+diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c
+index c2130aef3f9d..f534a0e3af53 100644
+--- a/arch/x86/kernel/paravirt.c
++++ b/arch/x86/kernel/paravirt.c
+@@ -55,12 +55,12 @@ asm (".pushsection .entry.text, \"ax\"\n"
+ ".popsection");
+
+ /* identity function, which can be inlined */
+-u32 _paravirt_ident_32(u32 x)
++u32 notrace _paravirt_ident_32(u32 x)
+ {
+ return x;
+ }
+
+-u64 _paravirt_ident_64(u64 x)
++u64 notrace _paravirt_ident_64(u64 x)
+ {
+ return x;
+ }
+diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
+index be222666b1c2..d7cb9577fa31 100644
+--- a/arch/x86/kvm/x86.c
++++ b/arch/x86/kvm/x86.c
+@@ -2735,7 +2735,6 @@ void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
+ }
+
+ kvm_make_request(KVM_REQ_STEAL_UPDATE, vcpu);
+- vcpu->arch.switch_db_regs |= KVM_DEBUGREG_RELOAD;
+ }
+
+ void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu)
+diff --git a/crypto/cryptd.c b/crypto/cryptd.c
+index c81861b1350b..e7aa904cb20b 100644
+--- a/crypto/cryptd.c
++++ b/crypto/cryptd.c
+@@ -594,9 +594,14 @@ static int cryptd_hash_export(struct ahash_request *req, void *out)
+
+ static int cryptd_hash_import(struct ahash_request *req, const void *in)
+ {
+- struct cryptd_hash_request_ctx *rctx = ahash_request_ctx(req);
++ struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
++ struct cryptd_hash_ctx *ctx = crypto_ahash_ctx(tfm);
++ struct shash_desc *desc = cryptd_shash_desc(req);
++
++ desc->tfm = ctx->child;
++ desc->flags = req->base.flags;
+
+- return crypto_shash_import(&rctx->desc, in);
++ return crypto_shash_import(desc, in);
+ }
+
+ static int cryptd_create_hash(struct crypto_template *tmpl, struct rtattr **tb,
+diff --git a/drivers/bus/arm-ccn.c b/drivers/bus/arm-ccn.c
+index 7082c7268845..0f54cb7ddcbb 100644
+--- a/drivers/bus/arm-ccn.c
++++ b/drivers/bus/arm-ccn.c
+@@ -187,6 +187,7 @@ struct arm_ccn {
+ struct arm_ccn_component *xp;
+
+ struct arm_ccn_dt dt;
++ int mn_id;
+ };
+
+
+@@ -326,6 +327,7 @@ struct arm_ccn_pmu_event {
+ static ssize_t arm_ccn_pmu_event_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+ {
++ struct arm_ccn *ccn = pmu_to_arm_ccn(dev_get_drvdata(dev));
+ struct arm_ccn_pmu_event *event = container_of(attr,
+ struct arm_ccn_pmu_event, attr);
+ ssize_t res;
+@@ -352,6 +354,9 @@ static ssize_t arm_ccn_pmu_event_show(struct device *dev,
+ res += snprintf(buf + res, PAGE_SIZE - res,
+ ",cmp_l=?,cmp_h=?,mask=?");
+ break;
++ case CCN_TYPE_MN:
++ res += snprintf(buf + res, PAGE_SIZE - res, ",node=%d", ccn->mn_id);
++ break;
+ default:
+ res += snprintf(buf + res, PAGE_SIZE - res, ",node=?");
+ break;
+@@ -381,9 +386,9 @@ static umode_t arm_ccn_pmu_events_is_visible(struct kobject *kobj,
+ }
+
+ static struct arm_ccn_pmu_event arm_ccn_pmu_events[] = {
+- CCN_EVENT_MN(eobarrier, "dir=0,vc=0,cmp_h=0x1c00", CCN_IDX_MASK_OPCODE),
+- CCN_EVENT_MN(ecbarrier, "dir=0,vc=0,cmp_h=0x1e00", CCN_IDX_MASK_OPCODE),
+- CCN_EVENT_MN(dvmop, "dir=0,vc=0,cmp_h=0x2800", CCN_IDX_MASK_OPCODE),
++ CCN_EVENT_MN(eobarrier, "dir=1,vc=0,cmp_h=0x1c00", CCN_IDX_MASK_OPCODE),
++ CCN_EVENT_MN(ecbarrier, "dir=1,vc=0,cmp_h=0x1e00", CCN_IDX_MASK_OPCODE),
++ CCN_EVENT_MN(dvmop, "dir=1,vc=0,cmp_h=0x2800", CCN_IDX_MASK_OPCODE),
+ CCN_EVENT_HNI(txdatflits, "dir=1,vc=3", CCN_IDX_MASK_ANY),
+ CCN_EVENT_HNI(rxdatflits, "dir=0,vc=3", CCN_IDX_MASK_ANY),
+ CCN_EVENT_HNI(txreqflits, "dir=1,vc=0", CCN_IDX_MASK_ANY),
+@@ -757,6 +762,12 @@ static int arm_ccn_pmu_event_init(struct perf_event *event)
+
+ /* Validate node/xp vs topology */
+ switch (type) {
++ case CCN_TYPE_MN:
++ if (node_xp != ccn->mn_id) {
++ dev_warn(ccn->dev, "Invalid MN ID %d!\n", node_xp);
++ return -EINVAL;
++ }
++ break;
+ case CCN_TYPE_XP:
+ if (node_xp >= ccn->num_xps) {
+ dev_warn(ccn->dev, "Invalid XP ID %d!\n", node_xp);
+@@ -884,6 +895,10 @@ static void arm_ccn_pmu_xp_dt_config(struct perf_event *event, int enable)
+ struct arm_ccn_component *xp;
+ u32 val, dt_cfg;
+
++ /* Nothing to do for cycle counter */
++ if (hw->idx == CCN_IDX_PMU_CYCLE_COUNTER)
++ return;
++
+ if (CCN_CONFIG_TYPE(event->attr.config) == CCN_TYPE_XP)
+ xp = &ccn->xp[CCN_CONFIG_XP(event->attr.config)];
+ else
+@@ -986,7 +1001,7 @@ static void arm_ccn_pmu_xp_watchpoint_config(struct perf_event *event)
+
+ /* Comparison values */
+ writel(cmp_l & 0xffffffff, source->base + CCN_XP_DT_CMP_VAL_L(wp));
+- writel((cmp_l >> 32) & 0xefffffff,
++ writel((cmp_l >> 32) & 0x7fffffff,
+ source->base + CCN_XP_DT_CMP_VAL_L(wp) + 4);
+ writel(cmp_h & 0xffffffff, source->base + CCN_XP_DT_CMP_VAL_H(wp));
+ writel((cmp_h >> 32) & 0x0fffffff,
+@@ -994,7 +1009,7 @@ static void arm_ccn_pmu_xp_watchpoint_config(struct perf_event *event)
+
+ /* Mask */
+ writel(mask_l & 0xffffffff, source->base + CCN_XP_DT_CMP_MASK_L(wp));
+- writel((mask_l >> 32) & 0xefffffff,
++ writel((mask_l >> 32) & 0x7fffffff,
+ source->base + CCN_XP_DT_CMP_MASK_L(wp) + 4);
+ writel(mask_h & 0xffffffff, source->base + CCN_XP_DT_CMP_MASK_H(wp));
+ writel((mask_h >> 32) & 0x0fffffff,
+@@ -1368,6 +1383,8 @@ static int arm_ccn_init_nodes(struct arm_ccn *ccn, int region,
+
+ switch (type) {
+ case CCN_TYPE_MN:
++ ccn->mn_id = id;
++ return 0;
+ case CCN_TYPE_DT:
+ return 0;
+ case CCN_TYPE_XP:
+diff --git a/drivers/clocksource/sun4i_timer.c b/drivers/clocksource/sun4i_timer.c
+index 6f3719d73390..e84877a2cacc 100644
+--- a/drivers/clocksource/sun4i_timer.c
++++ b/drivers/clocksource/sun4i_timer.c
+@@ -123,12 +123,16 @@ static struct clock_event_device sun4i_clockevent = {
+ .set_next_event = sun4i_clkevt_next_event,
+ };
+
++static void sun4i_timer_clear_interrupt(void)
++{
++ writel(TIMER_IRQ_EN(0), timer_base + TIMER_IRQ_ST_REG);
++}
+
+ static irqreturn_t sun4i_timer_interrupt(int irq, void *dev_id)
+ {
+ struct clock_event_device *evt = (struct clock_event_device *)dev_id;
+
+- writel(0x1, timer_base + TIMER_IRQ_ST_REG);
++ sun4i_timer_clear_interrupt();
+ evt->event_handler(evt);
+
+ return IRQ_HANDLED;
+@@ -193,6 +197,9 @@ static void __init sun4i_timer_init(struct device_node *node)
+ /* Make sure timer is stopped before playing with interrupts */
+ sun4i_clkevt_time_stop(0);
+
++ /* clear timer0 interrupt */
++ sun4i_timer_clear_interrupt();
++
+ sun4i_clockevent.cpumask = cpu_possible_mask;
+ sun4i_clockevent.irq = irq;
+
+diff --git a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c
+index 59d1269626b1..e231176cb66b 100644
+--- a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c
++++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c
+@@ -316,19 +316,19 @@ atmel_hlcdc_plane_update_pos_and_size(struct atmel_hlcdc_plane *plane,
+ u32 *coeff_tab = heo_upscaling_ycoef;
+ u32 max_memsize;
+
+- if (state->crtc_w < state->src_w)
++ if (state->crtc_h < state->src_h)
+ coeff_tab = heo_downscaling_ycoef;
+ for (i = 0; i < ARRAY_SIZE(heo_upscaling_ycoef); i++)
+ atmel_hlcdc_layer_update_cfg(&plane->layer,
+ 33 + i,
+ 0xffffffff,
+ coeff_tab[i]);
+- factor = ((8 * 256 * state->src_w) - (256 * 4)) /
+- state->crtc_w;
++ factor = ((8 * 256 * state->src_h) - (256 * 4)) /
++ state->crtc_h;
+ factor++;
+- max_memsize = ((factor * state->crtc_w) + (256 * 4)) /
++ max_memsize = ((factor * state->crtc_h) + (256 * 4)) /
+ 2048;
+- if (max_memsize > state->src_w)
++ if (max_memsize > state->src_h)
+ factor--;
+ factor_reg |= (factor << 16) | 0x80000000;
+ }
+diff --git a/drivers/gpu/drm/drm_ioc32.c b/drivers/gpu/drm/drm_ioc32.c
+index 57676f8d7ecf..a6289752be16 100644
+--- a/drivers/gpu/drm/drm_ioc32.c
++++ b/drivers/gpu/drm/drm_ioc32.c
+@@ -1015,6 +1015,7 @@ static int compat_drm_wait_vblank(struct file *file, unsigned int cmd,
+ return 0;
+ }
+
++#if defined(CONFIG_X86) || defined(CONFIG_IA64)
+ typedef struct drm_mode_fb_cmd232 {
+ u32 fb_id;
+ u32 width;
+@@ -1071,6 +1072,7 @@ static int compat_drm_mode_addfb2(struct file *file, unsigned int cmd,
+
+ return 0;
+ }
++#endif
+
+ static drm_ioctl_compat_t *drm_compat_ioctls[] = {
+ [DRM_IOCTL_NR(DRM_IOCTL_VERSION32)] = compat_drm_version,
+@@ -1104,7 +1106,9 @@ static drm_ioctl_compat_t *drm_compat_ioctls[] = {
+ [DRM_IOCTL_NR(DRM_IOCTL_UPDATE_DRAW32)] = compat_drm_update_draw,
+ #endif
+ [DRM_IOCTL_NR(DRM_IOCTL_WAIT_VBLANK32)] = compat_drm_wait_vblank,
++#if defined(CONFIG_X86) || defined(CONFIG_IA64)
+ [DRM_IOCTL_NR(DRM_IOCTL_MODE_ADDFB232)] = compat_drm_mode_addfb2,
++#endif
+ };
+
+ /**
+diff --git a/drivers/gpu/drm/gma500/cdv_intel_dp.c b/drivers/gpu/drm/gma500/cdv_intel_dp.c
+index 17cea400ae32..d3de377dc857 100644
+--- a/drivers/gpu/drm/gma500/cdv_intel_dp.c
++++ b/drivers/gpu/drm/gma500/cdv_intel_dp.c
+@@ -220,7 +220,7 @@ i2c_dp_aux_prepare_bus(struct i2c_adapter *adapter)
+ * FIXME: This is the old dp aux helper, gma500 is the last driver that needs to
+ * be ported over to the new helper code in drm_dp_helper.c like i915 or radeon.
+ */
+-static int __deprecated
++static int
+ i2c_dp_aux_add_bus(struct i2c_adapter *adapter)
+ {
+ int error;
+diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
+index a3254c3bcc7c..909d1d71d130 100644
+--- a/drivers/gpu/drm/i915/intel_display.c
++++ b/drivers/gpu/drm/i915/intel_display.c
+@@ -2950,13 +2950,13 @@ u32 intel_fb_stride_alignment(struct drm_device *dev, uint64_t fb_modifier,
+ }
+ }
+
+-unsigned long intel_plane_obj_offset(struct intel_plane *intel_plane,
+- struct drm_i915_gem_object *obj,
+- unsigned int plane)
++u32 intel_plane_obj_offset(struct intel_plane *intel_plane,
++ struct drm_i915_gem_object *obj,
++ unsigned int plane)
+ {
+ const struct i915_ggtt_view *view = &i915_ggtt_view_normal;
+ struct i915_vma *vma;
+- unsigned char *offset;
++ u64 offset;
+
+ if (intel_rotation_90_or_270(intel_plane->base.state->rotation))
+ view = &i915_ggtt_view_rotated;
+@@ -2966,14 +2966,16 @@ unsigned long intel_plane_obj_offset(struct intel_plane *intel_plane,
+ view->type))
+ return -1;
+
+- offset = (unsigned char *)vma->node.start;
++ offset = vma->node.start;
+
+ if (plane == 1) {
+ offset += vma->ggtt_view.rotation_info.uv_start_page *
+ PAGE_SIZE;
+ }
+
+- return (unsigned long)offset;
++ WARN_ON(upper_32_bits(offset));
++
++ return lower_32_bits(offset);
+ }
+
+ static void skl_detach_scaler(struct intel_crtc *intel_crtc, int id)
+@@ -3099,7 +3101,7 @@ static void skylake_update_primary_plane(struct drm_crtc *crtc,
+ u32 tile_height, plane_offset, plane_size;
+ unsigned int rotation;
+ int x_offset, y_offset;
+- unsigned long surf_addr;
++ u32 surf_addr;
+ struct intel_crtc_state *crtc_state = intel_crtc->config;
+ struct intel_plane_state *plane_state;
+ int src_x = 0, src_y = 0, src_w = 0, src_h = 0;
+diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
+index 67f72a7ee7cb..41442e619595 100644
+--- a/drivers/gpu/drm/i915/intel_drv.h
++++ b/drivers/gpu/drm/i915/intel_drv.h
+@@ -1177,9 +1177,9 @@ void intel_modeset_preclose(struct drm_device *dev, struct drm_file *file);
+ int skl_update_scaler_crtc(struct intel_crtc_state *crtc_state);
+ int skl_max_scale(struct intel_crtc *crtc, struct intel_crtc_state *crtc_state);
+
+-unsigned long intel_plane_obj_offset(struct intel_plane *intel_plane,
+- struct drm_i915_gem_object *obj,
+- unsigned int plane);
++u32 intel_plane_obj_offset(struct intel_plane *intel_plane,
++ struct drm_i915_gem_object *obj,
++ unsigned int plane);
+
+ u32 skl_plane_ctl_format(uint32_t pixel_format);
+ u32 skl_plane_ctl_tiling(uint64_t fb_modifier);
+diff --git a/drivers/gpu/drm/i915/intel_sprite.c b/drivers/gpu/drm/i915/intel_sprite.c
+index 56dc132e8e20..2cc6aa072f4c 100644
+--- a/drivers/gpu/drm/i915/intel_sprite.c
++++ b/drivers/gpu/drm/i915/intel_sprite.c
+@@ -195,7 +195,7 @@ skl_update_plane(struct drm_plane *drm_plane, struct drm_crtc *crtc,
+ int pixel_size = drm_format_plane_cpp(fb->pixel_format, 0);
+ const struct drm_intel_sprite_colorkey *key =
+ &to_intel_plane_state(drm_plane->state)->ckey;
+- unsigned long surf_addr;
++ u32 surf_addr;
+ u32 tile_height, plane_offset, plane_size;
+ unsigned int rotation;
+ int x_offset, y_offset;
+diff --git a/drivers/iio/accel/bmc150-accel-core.c b/drivers/iio/accel/bmc150-accel-core.c
+index 291c61a41c9a..fa24d5196615 100644
+--- a/drivers/iio/accel/bmc150-accel-core.c
++++ b/drivers/iio/accel/bmc150-accel-core.c
+@@ -68,6 +68,9 @@
+ #define BMC150_ACCEL_REG_PMU_BW 0x10
+ #define BMC150_ACCEL_DEF_BW 125
+
++#define BMC150_ACCEL_REG_RESET 0x14
++#define BMC150_ACCEL_RESET_VAL 0xB6
++
+ #define BMC150_ACCEL_REG_INT_MAP_0 0x19
+ #define BMC150_ACCEL_INT_MAP_0_BIT_SLOPE BIT(2)
+
+@@ -1487,6 +1490,14 @@ static int bmc150_accel_chip_init(struct bmc150_accel_data *data)
+ int ret, i;
+ unsigned int val;
+
++ /*
++ * Reset chip to get it in a known good state. A delay of 1.8ms after
++ * reset is required according to the data sheets of supported chips.
++ */
++ regmap_write(data->regmap, BMC150_ACCEL_REG_RESET,
++ BMC150_ACCEL_RESET_VAL);
++ usleep_range(1800, 2500);
++
+ ret = regmap_read(data->regmap, BMC150_ACCEL_REG_CHIP_ID, &val);
+ if (ret < 0) {
+ dev_err(data->dev,
+diff --git a/drivers/iio/accel/kxsd9.c b/drivers/iio/accel/kxsd9.c
+index 3a9f106787d2..9d72d4bcf5e9 100644
+--- a/drivers/iio/accel/kxsd9.c
++++ b/drivers/iio/accel/kxsd9.c
+@@ -160,11 +160,13 @@ static int kxsd9_read_raw(struct iio_dev *indio_dev,
+ if (ret < 0)
+ goto error_ret;
+ *val = ret;
++ ret = IIO_VAL_INT;
+ break;
+ case IIO_CHAN_INFO_SCALE:
+ ret = spi_w8r8(st->us, KXSD9_READ(KXSD9_REG_CTRL_C));
+ if (ret < 0)
+ goto error_ret;
++ *val = 0;
+ *val2 = kxsd9_micro_scales[ret & KXSD9_FS_MASK];
+ ret = IIO_VAL_INT_PLUS_MICRO;
+ break;
+diff --git a/drivers/iio/adc/Kconfig b/drivers/iio/adc/Kconfig
+index 1e7aded53117..bda6bbe4479c 100644
+--- a/drivers/iio/adc/Kconfig
++++ b/drivers/iio/adc/Kconfig
+@@ -306,6 +306,7 @@ config QCOM_SPMI_VADC
+ config ROCKCHIP_SARADC
+ tristate "Rockchip SARADC driver"
+ depends on ARCH_ROCKCHIP || (ARM && COMPILE_TEST)
++ depends on RESET_CONTROLLER
+ help
+ Say yes here to build support for the SARADC found in SoCs from
+ Rockchip.
+diff --git a/drivers/iio/adc/ad799x.c b/drivers/iio/adc/ad799x.c
+index 01d71588d752..ba82de25a797 100644
+--- a/drivers/iio/adc/ad799x.c
++++ b/drivers/iio/adc/ad799x.c
+@@ -533,6 +533,7 @@ static struct attribute_group ad799x_event_attrs_group = {
+ static const struct iio_info ad7991_info = {
+ .read_raw = &ad799x_read_raw,
+ .driver_module = THIS_MODULE,
++ .update_scan_mode = ad799x_update_scan_mode,
+ };
+
+ static const struct iio_info ad7993_4_7_8_noirq_info = {
+diff --git a/drivers/iio/adc/at91_adc.c b/drivers/iio/adc/at91_adc.c
+index 7b40925dd4ff..93986f0590ef 100644
+--- a/drivers/iio/adc/at91_adc.c
++++ b/drivers/iio/adc/at91_adc.c
+@@ -381,8 +381,8 @@ static irqreturn_t at91_adc_rl_interrupt(int irq, void *private)
+ st->ts_bufferedmeasure = false;
+ input_report_key(st->ts_input, BTN_TOUCH, 0);
+ input_sync(st->ts_input);
+- } else if (status & AT91_ADC_EOC(3)) {
+- /* Conversion finished */
++ } else if (status & AT91_ADC_EOC(3) && st->ts_input) {
++ /* Conversion finished and we've a touchscreen */
+ if (st->ts_bufferedmeasure) {
+ /*
+ * Last measurement is always discarded, since it can
+diff --git a/drivers/iio/adc/rockchip_saradc.c b/drivers/iio/adc/rockchip_saradc.c
+index 9c311c1e1ac7..dffff64b5989 100644
+--- a/drivers/iio/adc/rockchip_saradc.c
++++ b/drivers/iio/adc/rockchip_saradc.c
+@@ -21,6 +21,8 @@
+ #include <linux/of_device.h>
+ #include <linux/clk.h>
+ #include <linux/completion.h>
++#include <linux/delay.h>
++#include <linux/reset.h>
+ #include <linux/regulator/consumer.h>
+ #include <linux/iio/iio.h>
+
+@@ -53,6 +55,7 @@ struct rockchip_saradc {
+ struct clk *clk;
+ struct completion completion;
+ struct regulator *vref;
++ struct reset_control *reset;
+ const struct rockchip_saradc_data *data;
+ u16 last_val;
+ };
+@@ -171,6 +174,16 @@ static const struct of_device_id rockchip_saradc_match[] = {
+ };
+ MODULE_DEVICE_TABLE(of, rockchip_saradc_match);
+
++/**
++ * Reset SARADC Controller.
++ */
++static void rockchip_saradc_reset_controller(struct reset_control *reset)
++{
++ reset_control_assert(reset);
++ usleep_range(10, 20);
++ reset_control_deassert(reset);
++}
++
+ static int rockchip_saradc_probe(struct platform_device *pdev)
+ {
+ struct rockchip_saradc *info = NULL;
+@@ -199,6 +212,20 @@ static int rockchip_saradc_probe(struct platform_device *pdev)
+ if (IS_ERR(info->regs))
+ return PTR_ERR(info->regs);
+
++ /*
++ * The reset should be an optional property, as it should work
++ * with old devicetrees as well
++ */
++ info->reset = devm_reset_control_get(&pdev->dev, "saradc-apb");
++ if (IS_ERR(info->reset)) {
++ ret = PTR_ERR(info->reset);
++ if (ret != -ENOENT)
++ return ret;
++
++ dev_dbg(&pdev->dev, "no reset control found\n");
++ info->reset = NULL;
++ }
++
+ init_completion(&info->completion);
+
+ irq = platform_get_irq(pdev, 0);
+@@ -233,6 +260,9 @@ static int rockchip_saradc_probe(struct platform_device *pdev)
+ return PTR_ERR(info->vref);
+ }
+
++ if (info->reset)
++ rockchip_saradc_reset_controller(info->reset);
++
+ /*
+ * Use a default value for the converter clock.
+ * This may become user-configurable in the future.
+diff --git a/drivers/iio/adc/ti_am335x_adc.c b/drivers/iio/adc/ti_am335x_adc.c
+index c1e05532d437..0470fc843d4e 100644
+--- a/drivers/iio/adc/ti_am335x_adc.c
++++ b/drivers/iio/adc/ti_am335x_adc.c
+@@ -32,6 +32,7 @@
+
+ struct tiadc_device {
+ struct ti_tscadc_dev *mfd_tscadc;
++ struct mutex fifo1_lock; /* to protect fifo access */
+ int channels;
+ u8 channel_line[8];
+ u8 channel_step[8];
+@@ -360,6 +361,7 @@ static int tiadc_read_raw(struct iio_dev *indio_dev,
+ int *val, int *val2, long mask)
+ {
+ struct tiadc_device *adc_dev = iio_priv(indio_dev);
++ int ret = IIO_VAL_INT;
+ int i, map_val;
+ unsigned int fifo1count, read, stepid;
+ bool found = false;
+@@ -373,13 +375,14 @@ static int tiadc_read_raw(struct iio_dev *indio_dev,
+ if (!step_en)
+ return -EINVAL;
+
++ mutex_lock(&adc_dev->fifo1_lock);
+ fifo1count = tiadc_readl(adc_dev, REG_FIFO1CNT);
+ while (fifo1count--)
+ tiadc_readl(adc_dev, REG_FIFO1);
+
+ am335x_tsc_se_set_once(adc_dev->mfd_tscadc, step_en);
+
+- timeout = jiffies + usecs_to_jiffies
++ timeout = jiffies + msecs_to_jiffies
+ (IDLE_TIMEOUT * adc_dev->channels);
+ /* Wait for Fifo threshold interrupt */
+ while (1) {
+@@ -389,7 +392,8 @@ static int tiadc_read_raw(struct iio_dev *indio_dev,
+
+ if (time_after(jiffies, timeout)) {
+ am335x_tsc_se_adc_done(adc_dev->mfd_tscadc);
+- return -EAGAIN;
++ ret = -EAGAIN;
++ goto err_unlock;
+ }
+ }
+ map_val = adc_dev->channel_step[chan->scan_index];
+@@ -415,8 +419,11 @@ static int tiadc_read_raw(struct iio_dev *indio_dev,
+ am335x_tsc_se_adc_done(adc_dev->mfd_tscadc);
+
+ if (found == false)
+- return -EBUSY;
+- return IIO_VAL_INT;
++ ret = -EBUSY;
++
++err_unlock:
++ mutex_unlock(&adc_dev->fifo1_lock);
++ return ret;
+ }
+
+ static const struct iio_info tiadc_info = {
+@@ -485,6 +492,7 @@ static int tiadc_probe(struct platform_device *pdev)
+
+ tiadc_step_config(indio_dev);
+ tiadc_writel(adc_dev, REG_FIFO1THR, FIFO1_THRESHOLD);
++ mutex_init(&adc_dev->fifo1_lock);
+
+ err = tiadc_channel_init(indio_dev, adc_dev->channels);
+ if (err < 0)
+diff --git a/drivers/iio/common/hid-sensors/hid-sensor-attributes.c b/drivers/iio/common/hid-sensors/hid-sensor-attributes.c
+index e81f434760f4..dc33c1dd5191 100644
+--- a/drivers/iio/common/hid-sensors/hid-sensor-attributes.c
++++ b/drivers/iio/common/hid-sensors/hid-sensor-attributes.c
+@@ -56,8 +56,8 @@ static struct {
+ {HID_USAGE_SENSOR_ALS, 0, 1, 0},
+ {HID_USAGE_SENSOR_ALS, HID_USAGE_SENSOR_UNITS_LUX, 1, 0},
+
+- {HID_USAGE_SENSOR_PRESSURE, 0, 100000, 0},
+- {HID_USAGE_SENSOR_PRESSURE, HID_USAGE_SENSOR_UNITS_PASCAL, 1, 0},
++ {HID_USAGE_SENSOR_PRESSURE, 0, 100, 0},
++ {HID_USAGE_SENSOR_PRESSURE, HID_USAGE_SENSOR_UNITS_PASCAL, 0, 1000},
+ };
+
+ static int pow_10(unsigned power)
+diff --git a/drivers/iio/industrialio-buffer.c b/drivers/iio/industrialio-buffer.c
+index 7afd226a3321..32bb036069eb 100644
+--- a/drivers/iio/industrialio-buffer.c
++++ b/drivers/iio/industrialio-buffer.c
+@@ -110,7 +110,7 @@ ssize_t iio_buffer_read_first_n_outer(struct file *filp, char __user *buf,
+ DEFINE_WAIT_FUNC(wait, woken_wake_function);
+ size_t datum_size;
+ size_t to_wait;
+- int ret;
++ int ret = 0;
+
+ if (!indio_dev->info)
+ return -ENODEV;
+@@ -153,7 +153,7 @@ ssize_t iio_buffer_read_first_n_outer(struct file *filp, char __user *buf,
+ ret = rb->access->read_first_n(rb, n, buf);
+ if (ret == 0 && (filp->f_flags & O_NONBLOCK))
+ ret = -EAGAIN;
+- } while (ret == 0);
++ } while (ret == 0);
+ remove_wait_queue(&rb->pollq, &wait);
+
+ return ret;
+diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c
+index 159ede61f793..7ede941e9301 100644
+--- a/drivers/iio/industrialio-core.c
++++ b/drivers/iio/industrialio-core.c
+@@ -447,9 +447,8 @@ ssize_t iio_format_value(char *buf, unsigned int type, int size, int *vals)
+ return sprintf(buf, "%d.%09u\n", vals[0], vals[1]);
+ case IIO_VAL_FRACTIONAL:
+ tmp = div_s64((s64)vals[0] * 1000000000LL, vals[1]);
+- vals[1] = do_div(tmp, 1000000000LL);
+- vals[0] = tmp;
+- return sprintf(buf, "%d.%09u\n", vals[0], vals[1]);
++ vals[0] = (int)div_s64_rem(tmp, 1000000000, &vals[1]);
++ return sprintf(buf, "%d.%09u\n", vals[0], abs(vals[1]));
+ case IIO_VAL_FRACTIONAL_LOG2:
+ tmp = (s64)vals[0] * 1000000000LL >> vals[1];
+ vals[1] = do_div(tmp, 1000000000LL);
+diff --git a/drivers/iio/proximity/as3935.c b/drivers/iio/proximity/as3935.c
+index e2f926cdcad2..a0aedda7dfd7 100644
+--- a/drivers/iio/proximity/as3935.c
++++ b/drivers/iio/proximity/as3935.c
+@@ -392,7 +392,7 @@ static int as3935_probe(struct spi_device *spi)
+ return ret;
+ }
+
+- ret = iio_triggered_buffer_setup(indio_dev, NULL,
++ ret = iio_triggered_buffer_setup(indio_dev, iio_pollfunc_store_time,
+ &as3935_trigger_handler, NULL);
+
+ if (ret) {
+diff --git a/drivers/infiniband/core/uverbs.h b/drivers/infiniband/core/uverbs.h
+index 94bbd8c155fc..a2d19d136099 100644
+--- a/drivers/infiniband/core/uverbs.h
++++ b/drivers/infiniband/core/uverbs.h
+@@ -116,6 +116,7 @@ struct ib_uverbs_event_file {
+ struct ib_uverbs_file {
+ struct kref ref;
+ struct mutex mutex;
++ struct mutex cleanup_mutex; /* protect cleanup */
+ struct ib_uverbs_device *device;
+ struct ib_ucontext *ucontext;
+ struct ib_event_handler event_handler;
+diff --git a/drivers/infiniband/core/uverbs_main.c b/drivers/infiniband/core/uverbs_main.c
+index 24f3ca2c4ad7..d625c82d6c82 100644
+--- a/drivers/infiniband/core/uverbs_main.c
++++ b/drivers/infiniband/core/uverbs_main.c
+@@ -922,6 +922,7 @@ static int ib_uverbs_open(struct inode *inode, struct file *filp)
+ file->async_file = NULL;
+ kref_init(&file->ref);
+ mutex_init(&file->mutex);
++ mutex_init(&file->cleanup_mutex);
+
+ filp->private_data = file;
+ kobject_get(&dev->kobj);
+@@ -947,18 +948,20 @@ static int ib_uverbs_close(struct inode *inode, struct file *filp)
+ {
+ struct ib_uverbs_file *file = filp->private_data;
+ struct ib_uverbs_device *dev = file->device;
+- struct ib_ucontext *ucontext = NULL;
++
++ mutex_lock(&file->cleanup_mutex);
++ if (file->ucontext) {
++ ib_uverbs_cleanup_ucontext(file, file->ucontext);
++ file->ucontext = NULL;
++ }
++ mutex_unlock(&file->cleanup_mutex);
+
+ mutex_lock(&file->device->lists_mutex);
+- ucontext = file->ucontext;
+- file->ucontext = NULL;
+ if (!file->is_closed) {
+ list_del(&file->list);
+ file->is_closed = 1;
+ }
+ mutex_unlock(&file->device->lists_mutex);
+- if (ucontext)
+- ib_uverbs_cleanup_ucontext(file, ucontext);
+
+ if (file->async_file)
+ kref_put(&file->async_file->ref, ib_uverbs_release_event_file);
+@@ -1172,22 +1175,30 @@ static void ib_uverbs_free_hw_resources(struct ib_uverbs_device *uverbs_dev,
+ mutex_lock(&uverbs_dev->lists_mutex);
+ while (!list_empty(&uverbs_dev->uverbs_file_list)) {
+ struct ib_ucontext *ucontext;
+-
+ file = list_first_entry(&uverbs_dev->uverbs_file_list,
+ struct ib_uverbs_file, list);
+ file->is_closed = 1;
+- ucontext = file->ucontext;
+ list_del(&file->list);
+- file->ucontext = NULL;
+ kref_get(&file->ref);
+ mutex_unlock(&uverbs_dev->lists_mutex);
+- /* We must release the mutex before going ahead and calling
+- * disassociate_ucontext. disassociate_ucontext might end up
+- * indirectly calling uverbs_close, for example due to freeing
+- * the resources (e.g mmput).
+- */
++
+ ib_uverbs_event_handler(&file->event_handler, &event);
++
++ mutex_lock(&file->cleanup_mutex);
++ ucontext = file->ucontext;
++ file->ucontext = NULL;
++ mutex_unlock(&file->cleanup_mutex);
++
++ /* At this point ib_uverbs_close cannot be running
++ * ib_uverbs_cleanup_ucontext
++ */
+ if (ucontext) {
++ /* We must release the mutex before going ahead and
++ * calling disassociate_ucontext. disassociate_ucontext
++ * might end up indirectly calling uverbs_close,
++ * for example due to freeing the resources
++ * (e.g mmput).
++ */
+ ib_dev->disassociate_ucontext(ucontext);
+ ib_uverbs_cleanup_ucontext(file, ucontext);
+ }
+diff --git a/drivers/irqchip/irq-atmel-aic.c b/drivers/irqchip/irq-atmel-aic.c
+index 8a0c7f288198..981c3959da59 100644
+--- a/drivers/irqchip/irq-atmel-aic.c
++++ b/drivers/irqchip/irq-atmel-aic.c
+@@ -176,6 +176,7 @@ static int aic_irq_domain_xlate(struct irq_domain *d,
+ {
+ struct irq_domain_chip_generic *dgc = d->gc;
+ struct irq_chip_generic *gc;
++ unsigned long flags;
+ unsigned smr;
+ int idx;
+ int ret;
+@@ -194,12 +195,12 @@ static int aic_irq_domain_xlate(struct irq_domain *d,
+
+ gc = dgc->gc[idx];
+
+- irq_gc_lock(gc);
++ irq_gc_lock_irqsave(gc, flags);
+ smr = irq_reg_readl(gc, AT91_AIC_SMR(*out_hwirq));
+ ret = aic_common_set_priority(intspec[2], &smr);
+ if (!ret)
+ irq_reg_writel(gc, smr, AT91_AIC_SMR(*out_hwirq));
+- irq_gc_unlock(gc);
++ irq_gc_unlock_irqrestore(gc, flags);
+
+ return ret;
+ }
+diff --git a/drivers/irqchip/irq-atmel-aic5.c b/drivers/irqchip/irq-atmel-aic5.c
+index 62bb840c613f..7dee71bde350 100644
+--- a/drivers/irqchip/irq-atmel-aic5.c
++++ b/drivers/irqchip/irq-atmel-aic5.c
+@@ -258,6 +258,7 @@ static int aic5_irq_domain_xlate(struct irq_domain *d,
+ unsigned int *out_type)
+ {
+ struct irq_chip_generic *bgc = irq_get_domain_generic_chip(d, 0);
++ unsigned long flags;
+ unsigned smr;
+ int ret;
+
+@@ -269,13 +270,13 @@ static int aic5_irq_domain_xlate(struct irq_domain *d,
+ if (ret)
+ return ret;
+
+- irq_gc_lock(bgc);
++ irq_gc_lock_irqsave(bgc, flags);
+ irq_reg_writel(bgc, *out_hwirq, AT91_AIC5_SSR);
+ smr = irq_reg_readl(bgc, AT91_AIC5_SMR);
+ ret = aic_common_set_priority(intspec[2], &smr);
+ if (!ret)
+ irq_reg_writel(bgc, intspec[2] | smr, AT91_AIC5_SMR);
+- irq_gc_unlock(bgc);
++ irq_gc_unlock_irqrestore(bgc, flags);
+
+ return ret;
+ }
+diff --git a/drivers/lightnvm/rrpc.c b/drivers/lightnvm/rrpc.c
+index a9859489acf6..596347f345db 100644
+--- a/drivers/lightnvm/rrpc.c
++++ b/drivers/lightnvm/rrpc.c
+@@ -287,8 +287,10 @@ static int rrpc_move_valid_pages(struct rrpc *rrpc, struct rrpc_block *rblk)
+ }
+
+ page = mempool_alloc(rrpc->page_pool, GFP_NOIO);
+- if (!page)
++ if (!page) {
++ bio_put(bio);
+ return -ENOMEM;
++ }
+
+ while ((slot = find_first_zero_bit(rblk->invalid_pages,
+ nr_pgs_per_blk)) < nr_pgs_per_blk) {
+diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c
+index 3147c8d09ea8..51eda7235e32 100644
+--- a/drivers/md/dm-crypt.c
++++ b/drivers/md/dm-crypt.c
+@@ -1920,6 +1920,13 @@ static int crypt_map(struct dm_target *ti, struct bio *bio)
+ return DM_MAPIO_REMAPPED;
+ }
+
++ /*
++ * Check if bio is too large, split as needed.
++ */
++ if (unlikely(bio->bi_iter.bi_size > (BIO_MAX_PAGES << PAGE_SHIFT)) &&
++ bio_data_dir(bio) == WRITE)
++ dm_accept_partial_bio(bio, ((BIO_MAX_PAGES << PAGE_SHIFT) >> SECTOR_SHIFT));
++
+ io = dm_per_bio_data(bio, cc->per_bio_data_size);
+ crypt_io_init(io, cc, bio, dm_target_offset(ti, bio->bi_iter.bi_sector));
+ io->ctx.req = (struct ablkcipher_request *)(io + 1);
+diff --git a/drivers/md/dm-flakey.c b/drivers/md/dm-flakey.c
+index cd0a93df4cb7..8e9e928dafba 100644
+--- a/drivers/md/dm-flakey.c
++++ b/drivers/md/dm-flakey.c
+@@ -289,15 +289,13 @@ static int flakey_map(struct dm_target *ti, struct bio *bio)
+ pb->bio_submitted = true;
+
+ /*
+- * Map reads as normal only if corrupt_bio_byte set.
++ * Error reads if neither corrupt_bio_byte or drop_writes are set.
++ * Otherwise, flakey_end_io() will decide if the reads should be modified.
+ */
+ if (bio_data_dir(bio) == READ) {
+- /* If flags were specified, only corrupt those that match. */
+- if (fc->corrupt_bio_byte && (fc->corrupt_bio_rw == READ) &&
+- all_corrupt_bio_flags_match(bio, fc))
+- goto map_bio;
+- else
++ if (!fc->corrupt_bio_byte && !test_bit(DROP_WRITES, &fc->flags))
+ return -EIO;
++ goto map_bio;
+ }
+
+ /*
+@@ -334,14 +332,21 @@ static int flakey_end_io(struct dm_target *ti, struct bio *bio, int error)
+ struct flakey_c *fc = ti->private;
+ struct per_bio_data *pb = dm_per_bio_data(bio, sizeof(struct per_bio_data));
+
+- /*
+- * Corrupt successful READs while in down state.
+- */
+ if (!error && pb->bio_submitted && (bio_data_dir(bio) == READ)) {
+- if (fc->corrupt_bio_byte)
++ if (fc->corrupt_bio_byte && (fc->corrupt_bio_rw == READ) &&
++ all_corrupt_bio_flags_match(bio, fc)) {
++ /*
++ * Corrupt successful matching READs while in down state.
++ */
+ corrupt_bio_data(bio, fc);
+- else
++
++ } else if (!test_bit(DROP_WRITES, &fc->flags)) {
++ /*
++ * Error read during the down_interval if drop_writes
++ * wasn't configured.
++ */
+ return -EIO;
++ }
+ }
+
+ return error;
+diff --git a/drivers/md/dm-log-writes.c b/drivers/md/dm-log-writes.c
+index 624589d51c2c..d8956b4a7b09 100644
+--- a/drivers/md/dm-log-writes.c
++++ b/drivers/md/dm-log-writes.c
+@@ -258,12 +258,12 @@ static int log_one_block(struct log_writes_c *lc,
+ goto out;
+ sector++;
+
++ atomic_inc(&lc->io_blocks);
+ bio = bio_alloc(GFP_KERNEL, block->vec_cnt);
+ if (!bio) {
+ DMERR("Couldn't alloc log bio");
+ goto error;
+ }
+- atomic_inc(&lc->io_blocks);
+ bio->bi_iter.bi_size = 0;
+ bio->bi_iter.bi_sector = sector;
+ bio->bi_bdev = lc->logdev->bdev;
+@@ -456,9 +456,9 @@ static int log_writes_ctr(struct dm_target *ti, unsigned int argc, char **argv)
+ goto bad;
+ }
+
+- ret = -EINVAL;
+ lc->log_kthread = kthread_run(log_writes_kthread, lc, "log-write");
+- if (!lc->log_kthread) {
++ if (IS_ERR(lc->log_kthread)) {
++ ret = PTR_ERR(lc->log_kthread);
+ ti->error = "Couldn't alloc kthread";
+ dm_put_device(ti, lc->dev);
+ dm_put_device(ti, lc->logdev);
+diff --git a/drivers/md/md.c b/drivers/md/md.c
+index c57fdf847b47..c1c7d4fb4b77 100644
+--- a/drivers/md/md.c
++++ b/drivers/md/md.c
+@@ -7572,16 +7572,12 @@ EXPORT_SYMBOL(unregister_md_cluster_operations);
+
+ int md_setup_cluster(struct mddev *mddev, int nodes)
+ {
+- int err;
+-
+- err = request_module("md-cluster");
+- if (err) {
+- pr_err("md-cluster module not found.\n");
+- return -ENOENT;
+- }
+-
++ if (!md_cluster_ops)
++ request_module("md-cluster");
+ spin_lock(&pers_lock);
++ /* ensure module won't be unloaded */
+ if (!md_cluster_ops || !try_module_get(md_cluster_mod)) {
++ pr_err("can't find md-cluster module or get it's reference.\n");
+ spin_unlock(&pers_lock);
+ return -ENOENT;
+ }
+diff --git a/drivers/mmc/host/dw_mmc-pltfm.c b/drivers/mmc/host/dw_mmc-pltfm.c
+index 7e1d13b68b06..81bdeeb05a4d 100644
+--- a/drivers/mmc/host/dw_mmc-pltfm.c
++++ b/drivers/mmc/host/dw_mmc-pltfm.c
+@@ -60,7 +60,7 @@ int dw_mci_pltfm_register(struct platform_device *pdev,
+
+ regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ /* Get registers' physical base address */
+- host->phy_regs = (void *)(regs->start);
++ host->phy_regs = regs->start;
+ host->regs = devm_ioremap_resource(&pdev->dev, regs);
+ if (IS_ERR(host->regs))
+ return PTR_ERR(host->regs);
+diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
+index 7a6cedbe48a8..fb204ee6ff89 100644
+--- a/drivers/mmc/host/dw_mmc.c
++++ b/drivers/mmc/host/dw_mmc.c
+@@ -699,7 +699,7 @@ static int dw_mci_edmac_start_dma(struct dw_mci *host,
+ int ret = 0;
+
+ /* Set external dma config: burst size, burst width */
+- cfg.dst_addr = (dma_addr_t)(host->phy_regs + fifo_offset);
++ cfg.dst_addr = host->phy_regs + fifo_offset;
+ cfg.src_addr = cfg.dst_addr;
+ cfg.dst_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
+ cfg.src_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
+diff --git a/drivers/net/ethernet/cavium/thunder/nic_reg.h b/drivers/net/ethernet/cavium/thunder/nic_reg.h
+index afb10e326b4f..fab35a593898 100644
+--- a/drivers/net/ethernet/cavium/thunder/nic_reg.h
++++ b/drivers/net/ethernet/cavium/thunder/nic_reg.h
+@@ -170,7 +170,6 @@
+ #define NIC_QSET_SQ_0_7_DOOR (0x010838)
+ #define NIC_QSET_SQ_0_7_STATUS (0x010840)
+ #define NIC_QSET_SQ_0_7_DEBUG (0x010848)
+-#define NIC_QSET_SQ_0_7_CNM_CHG (0x010860)
+ #define NIC_QSET_SQ_0_7_STAT_0_1 (0x010900)
+
+ #define NIC_QSET_RBDR_0_1_CFG (0x010C00)
+diff --git a/drivers/net/ethernet/cavium/thunder/nicvf_ethtool.c b/drivers/net/ethernet/cavium/thunder/nicvf_ethtool.c
+index a12b2e38cf61..ff1d777f3ed9 100644
+--- a/drivers/net/ethernet/cavium/thunder/nicvf_ethtool.c
++++ b/drivers/net/ethernet/cavium/thunder/nicvf_ethtool.c
+@@ -380,7 +380,10 @@ static void nicvf_get_regs(struct net_device *dev,
+ p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_SQ_0_7_DOOR, q);
+ p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_SQ_0_7_STATUS, q);
+ p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_SQ_0_7_DEBUG, q);
+- p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_SQ_0_7_CNM_CHG, q);
++ /* Padding, was NIC_QSET_SQ_0_7_CNM_CHG, which
++ * produces bus errors when read
++ */
++ p[i++] = 0;
+ p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_SQ_0_7_STAT_0_1, q);
+ reg_offset = NIC_QSET_SQ_0_7_STAT_0_1 | (1 << 3);
+ p[i++] = nicvf_queue_reg_read(nic, reg_offset, q);
+diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
+index d184e682e636..8c5d2cf9c979 100644
+--- a/drivers/net/wireless/ath/ath9k/main.c
++++ b/drivers/net/wireless/ath/ath9k/main.c
+@@ -1550,13 +1550,13 @@ static int ath9k_sta_state(struct ieee80211_hw *hw,
+ struct ath_common *common = ath9k_hw_common(sc->sc_ah);
+ int ret = 0;
+
+- if (old_state == IEEE80211_STA_AUTH &&
+- new_state == IEEE80211_STA_ASSOC) {
++ if (old_state == IEEE80211_STA_NOTEXIST &&
++ new_state == IEEE80211_STA_NONE) {
+ ret = ath9k_sta_add(hw, vif, sta);
+ ath_dbg(common, CONFIG,
+ "Add station: %pM\n", sta->addr);
+- } else if (old_state == IEEE80211_STA_ASSOC &&
+- new_state == IEEE80211_STA_AUTH) {
++ } else if (old_state == IEEE80211_STA_NONE &&
++ new_state == IEEE80211_STA_NOTEXIST) {
+ ret = ath9k_sta_remove(hw, vif, sta);
+ ath_dbg(common, CONFIG,
+ "Remove station: %pM\n", sta->addr);
+diff --git a/drivers/pinctrl/pinctrl-at91-pio4.c b/drivers/pinctrl/pinctrl-at91-pio4.c
+index b3235fd2950c..271cca63e9bd 100644
+--- a/drivers/pinctrl/pinctrl-at91-pio4.c
++++ b/drivers/pinctrl/pinctrl-at91-pio4.c
+@@ -1002,7 +1002,7 @@ static int atmel_pinctrl_probe(struct platform_device *pdev)
+ atmel_pioctrl->irqs[i] = res->start;
+ irq_set_chained_handler(res->start, atmel_gpio_irq_handler);
+ irq_set_handler_data(res->start, atmel_pioctrl);
+- dev_dbg(dev, "bank %i: hwirq=%u\n", i, res->start);
++ dev_dbg(dev, "bank %i: irq=%pr\n", i, res);
+ }
+
+ atmel_pioctrl->irq_domain = irq_domain_add_linear(dev->of_node,
+diff --git a/drivers/pinctrl/pinctrl-pistachio.c b/drivers/pinctrl/pinctrl-pistachio.c
+index 6b1a47f8c096..98a459b1c095 100644
+--- a/drivers/pinctrl/pinctrl-pistachio.c
++++ b/drivers/pinctrl/pinctrl-pistachio.c
+@@ -809,17 +809,17 @@ static const struct pistachio_pin_group pistachio_groups[] = {
+ PADS_FUNCTION_SELECT2, 12, 0x3),
+ MFIO_MUX_PIN_GROUP(83, MIPS_PLL_LOCK, MIPS_TRACE_DATA, USB_DEBUG,
+ PADS_FUNCTION_SELECT2, 14, 0x3),
+- MFIO_MUX_PIN_GROUP(84, SYS_PLL_LOCK, MIPS_TRACE_DATA, USB_DEBUG,
++ MFIO_MUX_PIN_GROUP(84, AUDIO_PLL_LOCK, MIPS_TRACE_DATA, USB_DEBUG,
+ PADS_FUNCTION_SELECT2, 16, 0x3),
+- MFIO_MUX_PIN_GROUP(85, WIFI_PLL_LOCK, MIPS_TRACE_DATA, SDHOST_DEBUG,
++ MFIO_MUX_PIN_GROUP(85, RPU_V_PLL_LOCK, MIPS_TRACE_DATA, SDHOST_DEBUG,
+ PADS_FUNCTION_SELECT2, 18, 0x3),
+- MFIO_MUX_PIN_GROUP(86, BT_PLL_LOCK, MIPS_TRACE_DATA, SDHOST_DEBUG,
++ MFIO_MUX_PIN_GROUP(86, RPU_L_PLL_LOCK, MIPS_TRACE_DATA, SDHOST_DEBUG,
+ PADS_FUNCTION_SELECT2, 20, 0x3),
+- MFIO_MUX_PIN_GROUP(87, RPU_V_PLL_LOCK, DREQ2, SOCIF_DEBUG,
++ MFIO_MUX_PIN_GROUP(87, SYS_PLL_LOCK, DREQ2, SOCIF_DEBUG,
+ PADS_FUNCTION_SELECT2, 22, 0x3),
+- MFIO_MUX_PIN_GROUP(88, RPU_L_PLL_LOCK, DREQ3, SOCIF_DEBUG,
++ MFIO_MUX_PIN_GROUP(88, WIFI_PLL_LOCK, DREQ3, SOCIF_DEBUG,
+ PADS_FUNCTION_SELECT2, 24, 0x3),
+- MFIO_MUX_PIN_GROUP(89, AUDIO_PLL_LOCK, DREQ4, DREQ5,
++ MFIO_MUX_PIN_GROUP(89, BT_PLL_LOCK, DREQ4, DREQ5,
+ PADS_FUNCTION_SELECT2, 26, 0x3),
+ PIN_GROUP(TCK, "tck"),
+ PIN_GROUP(TRSTN, "trstn"),
+diff --git a/drivers/pinctrl/sunxi/pinctrl-sun8i-a23.c b/drivers/pinctrl/sunxi/pinctrl-sun8i-a23.c
+index 55083d278bb1..51fbf85301be 100644
+--- a/drivers/pinctrl/sunxi/pinctrl-sun8i-a23.c
++++ b/drivers/pinctrl/sunxi/pinctrl-sun8i-a23.c
+@@ -485,12 +485,12 @@ static const struct sunxi_desc_pin sun8i_a23_pins[] = {
+ SUNXI_PIN(SUNXI_PINCTRL_PIN(G, 8),
+ SUNXI_FUNCTION(0x0, "gpio_in"),
+ SUNXI_FUNCTION(0x1, "gpio_out"),
+- SUNXI_FUNCTION(0x2, "uart2"), /* RTS */
++ SUNXI_FUNCTION(0x2, "uart1"), /* RTS */
+ SUNXI_FUNCTION_IRQ_BANK(0x4, 2, 8)), /* PG_EINT8 */
+ SUNXI_PIN(SUNXI_PINCTRL_PIN(G, 9),
+ SUNXI_FUNCTION(0x0, "gpio_in"),
+ SUNXI_FUNCTION(0x1, "gpio_out"),
+- SUNXI_FUNCTION(0x2, "uart2"), /* CTS */
++ SUNXI_FUNCTION(0x2, "uart1"), /* CTS */
+ SUNXI_FUNCTION_IRQ_BANK(0x4, 2, 9)), /* PG_EINT9 */
+ SUNXI_PIN(SUNXI_PINCTRL_PIN(G, 10),
+ SUNXI_FUNCTION(0x0, "gpio_in"),
+diff --git a/drivers/pinctrl/sunxi/pinctrl-sun8i-a33.c b/drivers/pinctrl/sunxi/pinctrl-sun8i-a33.c
+index 8b381d69df86..584cdedea7a4 100644
+--- a/drivers/pinctrl/sunxi/pinctrl-sun8i-a33.c
++++ b/drivers/pinctrl/sunxi/pinctrl-sun8i-a33.c
+@@ -407,12 +407,12 @@ static const struct sunxi_desc_pin sun8i_a33_pins[] = {
+ SUNXI_PIN(SUNXI_PINCTRL_PIN(G, 8),
+ SUNXI_FUNCTION(0x0, "gpio_in"),
+ SUNXI_FUNCTION(0x1, "gpio_out"),
+- SUNXI_FUNCTION(0x2, "uart2"), /* RTS */
++ SUNXI_FUNCTION(0x2, "uart1"), /* RTS */
+ SUNXI_FUNCTION_IRQ_BANK(0x4, 1, 8)), /* PG_EINT8 */
+ SUNXI_PIN(SUNXI_PINCTRL_PIN(G, 9),
+ SUNXI_FUNCTION(0x0, "gpio_in"),
+ SUNXI_FUNCTION(0x1, "gpio_out"),
+- SUNXI_FUNCTION(0x2, "uart2"), /* CTS */
++ SUNXI_FUNCTION(0x2, "uart1"), /* CTS */
+ SUNXI_FUNCTION_IRQ_BANK(0x4, 1, 9)), /* PG_EINT9 */
+ SUNXI_PIN(SUNXI_PINCTRL_PIN(G, 10),
+ SUNXI_FUNCTION(0x0, "gpio_in"),
+diff --git a/drivers/soc/qcom/spm.c b/drivers/soc/qcom/spm.c
+index b04b05a0904e..65bce1eecaf8 100644
+--- a/drivers/soc/qcom/spm.c
++++ b/drivers/soc/qcom/spm.c
+@@ -288,7 +288,7 @@ static struct spm_driver_data *spm_get_drv(struct platform_device *pdev,
+ struct spm_driver_data *drv = NULL;
+ struct device_node *cpu_node, *saw_node;
+ int cpu;
+- bool found;
++ bool found = 0;
+
+ for_each_possible_cpu(cpu) {
+ cpu_node = of_cpu_device_node_get(cpu);
+diff --git a/drivers/tty/serial/8250/8250_mid.c b/drivers/tty/serial/8250/8250_mid.c
+index ed489880e62b..83b3988eb6b2 100644
+--- a/drivers/tty/serial/8250/8250_mid.c
++++ b/drivers/tty/serial/8250/8250_mid.c
+@@ -149,6 +149,9 @@ static void mid8250_set_termios(struct uart_port *p,
+ unsigned long w = BIT(24) - 1;
+ unsigned long mul, div;
+
++ /* Gracefully handle the B0 case: fall back to B9600 */
++ fuart = fuart ? fuart : 9600 * 16;
++
+ if (mid->board->freq < fuart) {
+ /* Find prescaler value that satisfies Fuart < Fref */
+ if (mid->board->freq > baud)
+diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/8250/8250_pci.c
+index c1d4a8fa9be8..029de3f99752 100644
+--- a/drivers/tty/serial/8250/8250_pci.c
++++ b/drivers/tty/serial/8250/8250_pci.c
+@@ -1952,6 +1952,43 @@ pci_wch_ch38x_setup(struct serial_private *priv,
+ #define PCI_DEVICE_ID_PERICOM_PI7C9X7954 0x7954
+ #define PCI_DEVICE_ID_PERICOM_PI7C9X7958 0x7958
+
++#define PCI_VENDOR_ID_ACCESIO 0x494f
++#define PCI_DEVICE_ID_ACCESIO_PCIE_COM_2SDB 0x1051
++#define PCI_DEVICE_ID_ACCESIO_MPCIE_COM_2S 0x1053
++#define PCI_DEVICE_ID_ACCESIO_PCIE_COM_4SDB 0x105C
++#define PCI_DEVICE_ID_ACCESIO_MPCIE_COM_4S 0x105E
++#define PCI_DEVICE_ID_ACCESIO_PCIE_COM232_2DB 0x1091
++#define PCI_DEVICE_ID_ACCESIO_MPCIE_COM232_2 0x1093
++#define PCI_DEVICE_ID_ACCESIO_PCIE_COM232_4DB 0x1099
++#define PCI_DEVICE_ID_ACCESIO_MPCIE_COM232_4 0x109B
++#define PCI_DEVICE_ID_ACCESIO_PCIE_COM_2SMDB 0x10D1
++#define PCI_DEVICE_ID_ACCESIO_MPCIE_COM_2SM 0x10D3
++#define PCI_DEVICE_ID_ACCESIO_PCIE_COM_4SMDB 0x10DA
++#define PCI_DEVICE_ID_ACCESIO_MPCIE_COM_4SM 0x10DC
++#define PCI_DEVICE_ID_ACCESIO_MPCIE_ICM485_1 0x1108
++#define PCI_DEVICE_ID_ACCESIO_MPCIE_ICM422_2 0x1110
++#define PCI_DEVICE_ID_ACCESIO_MPCIE_ICM485_2 0x1111
++#define PCI_DEVICE_ID_ACCESIO_MPCIE_ICM422_4 0x1118
++#define PCI_DEVICE_ID_ACCESIO_MPCIE_ICM485_4 0x1119
++#define PCI_DEVICE_ID_ACCESIO_PCIE_ICM_2S 0x1152
++#define PCI_DEVICE_ID_ACCESIO_PCIE_ICM_4S 0x115A
++#define PCI_DEVICE_ID_ACCESIO_PCIE_ICM232_2 0x1190
++#define PCI_DEVICE_ID_ACCESIO_MPCIE_ICM232_2 0x1191
++#define PCI_DEVICE_ID_ACCESIO_PCIE_ICM232_4 0x1198
++#define PCI_DEVICE_ID_ACCESIO_MPCIE_ICM232_4 0x1199
++#define PCI_DEVICE_ID_ACCESIO_PCIE_ICM_2SM 0x11D0
++#define PCI_DEVICE_ID_ACCESIO_PCIE_COM422_4 0x105A
++#define PCI_DEVICE_ID_ACCESIO_PCIE_COM485_4 0x105B
++#define PCI_DEVICE_ID_ACCESIO_PCIE_COM422_8 0x106A
++#define PCI_DEVICE_ID_ACCESIO_PCIE_COM485_8 0x106B
++#define PCI_DEVICE_ID_ACCESIO_PCIE_COM232_4 0x1098
++#define PCI_DEVICE_ID_ACCESIO_PCIE_COM232_8 0x10A9
++#define PCI_DEVICE_ID_ACCESIO_PCIE_COM_4SM 0x10D9
++#define PCI_DEVICE_ID_ACCESIO_PCIE_COM_8SM 0x10E9
++#define PCI_DEVICE_ID_ACCESIO_PCIE_ICM_4SM 0x11D8
++
++
++
+ /* Unknown vendors/cards - this should not be in linux/pci_ids.h */
+ #define PCI_SUBDEVICE_ID_UNKNOWN_0x1584 0x1584
+ #define PCI_SUBDEVICE_ID_UNKNOWN_0x1588 0x1588
+@@ -5120,6 +5157,108 @@ static struct pci_device_id serial_pci_tbl[] = {
+ 0,
+ 0, pbn_pericom_PI7C9X7958 },
+ /*
++ * ACCES I/O Products quad
++ */
++ { PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_PCIE_COM_2SDB,
++ PCI_ANY_ID, PCI_ANY_ID, 0, 0,
++ pbn_pericom_PI7C9X7954 },
++ { PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_MPCIE_COM_2S,
++ PCI_ANY_ID, PCI_ANY_ID, 0, 0,
++ pbn_pericom_PI7C9X7954 },
++ { PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_PCIE_COM_4SDB,
++ PCI_ANY_ID, PCI_ANY_ID, 0, 0,
++ pbn_pericom_PI7C9X7954 },
++ { PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_MPCIE_COM_4S,
++ PCI_ANY_ID, PCI_ANY_ID, 0, 0,
++ pbn_pericom_PI7C9X7954 },
++ { PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_PCIE_COM232_2DB,
++ PCI_ANY_ID, PCI_ANY_ID, 0, 0,
++ pbn_pericom_PI7C9X7954 },
++ { PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_MPCIE_COM232_2,
++ PCI_ANY_ID, PCI_ANY_ID, 0, 0,
++ pbn_pericom_PI7C9X7954 },
++ { PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_PCIE_COM232_4DB,
++ PCI_ANY_ID, PCI_ANY_ID, 0, 0,
++ pbn_pericom_PI7C9X7954 },
++ { PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_MPCIE_COM232_4,
++ PCI_ANY_ID, PCI_ANY_ID, 0, 0,
++ pbn_pericom_PI7C9X7954 },
++ { PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_PCIE_COM_2SMDB,
++ PCI_ANY_ID, PCI_ANY_ID, 0, 0,
++ pbn_pericom_PI7C9X7954 },
++ { PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_MPCIE_COM_2SM,
++ PCI_ANY_ID, PCI_ANY_ID, 0, 0,
++ pbn_pericom_PI7C9X7954 },
++ { PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_PCIE_COM_4SMDB,
++ PCI_ANY_ID, PCI_ANY_ID, 0, 0,
++ pbn_pericom_PI7C9X7954 },
++ { PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_MPCIE_COM_4SM,
++ PCI_ANY_ID, PCI_ANY_ID, 0, 0,
++ pbn_pericom_PI7C9X7954 },
++ { PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_MPCIE_ICM485_1,
++ PCI_ANY_ID, PCI_ANY_ID, 0, 0,
++ pbn_pericom_PI7C9X7954 },
++ { PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_MPCIE_ICM422_2,
++ PCI_ANY_ID, PCI_ANY_ID, 0, 0,
++ pbn_pericom_PI7C9X7954 },
++ { PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_MPCIE_ICM485_2,
++ PCI_ANY_ID, PCI_ANY_ID, 0, 0,
++ pbn_pericom_PI7C9X7954 },
++ { PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_MPCIE_ICM422_4,
++ PCI_ANY_ID, PCI_ANY_ID, 0, 0,
++ pbn_pericom_PI7C9X7954 },
++ { PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_MPCIE_ICM485_4,
++ PCI_ANY_ID, PCI_ANY_ID, 0, 0,
++ pbn_pericom_PI7C9X7954 },
++ { PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_PCIE_ICM_2S,
++ PCI_ANY_ID, PCI_ANY_ID, 0, 0,
++ pbn_pericom_PI7C9X7954 },
++ { PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_PCIE_ICM_4S,
++ PCI_ANY_ID, PCI_ANY_ID, 0, 0,
++ pbn_pericom_PI7C9X7954 },
++ { PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_PCIE_ICM232_2,
++ PCI_ANY_ID, PCI_ANY_ID, 0, 0,
++ pbn_pericom_PI7C9X7954 },
++ { PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_MPCIE_ICM232_2,
++ PCI_ANY_ID, PCI_ANY_ID, 0, 0,
++ pbn_pericom_PI7C9X7954 },
++ { PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_PCIE_ICM232_4,
++ PCI_ANY_ID, PCI_ANY_ID, 0, 0,
++ pbn_pericom_PI7C9X7954 },
++ { PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_MPCIE_ICM232_4,
++ PCI_ANY_ID, PCI_ANY_ID, 0, 0,
++ pbn_pericom_PI7C9X7954 },
++ { PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_PCIE_ICM_2SM,
++ PCI_ANY_ID, PCI_ANY_ID, 0, 0,
++ pbn_pericom_PI7C9X7954 },
++ { PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_PCIE_COM422_4,
++ PCI_ANY_ID, PCI_ANY_ID, 0, 0,
++ pbn_pericom_PI7C9X7958 },
++ { PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_PCIE_COM485_4,
++ PCI_ANY_ID, PCI_ANY_ID, 0, 0,
++ pbn_pericom_PI7C9X7958 },
++ { PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_PCIE_COM422_8,
++ PCI_ANY_ID, PCI_ANY_ID, 0, 0,
++ pbn_pericom_PI7C9X7958 },
++ { PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_PCIE_COM485_8,
++ PCI_ANY_ID, PCI_ANY_ID, 0, 0,
++ pbn_pericom_PI7C9X7958 },
++ { PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_PCIE_COM232_4,
++ PCI_ANY_ID, PCI_ANY_ID, 0, 0,
++ pbn_pericom_PI7C9X7958 },
++ { PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_PCIE_COM232_8,
++ PCI_ANY_ID, PCI_ANY_ID, 0, 0,
++ pbn_pericom_PI7C9X7958 },
++ { PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_PCIE_COM_4SM,
++ PCI_ANY_ID, PCI_ANY_ID, 0, 0,
++ pbn_pericom_PI7C9X7958 },
++ { PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_PCIE_COM_8SM,
++ PCI_ANY_ID, PCI_ANY_ID, 0, 0,
++ pbn_pericom_PI7C9X7958 },
++ { PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_PCIE_ICM_4SM,
++ PCI_ANY_ID, PCI_ANY_ID, 0, 0,
++ pbn_pericom_PI7C9X7958 },
++ /*
+ * Topic TP560 Data/Fax/Voice 56k modem (reported by Evan Clarke)
+ */
+ { PCI_VENDOR_ID_TOPIC, PCI_DEVICE_ID_TOPIC_TP560,
+diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c
+index ca367b05e440..68fc5fce4cc5 100644
+--- a/drivers/usb/chipidea/udc.c
++++ b/drivers/usb/chipidea/udc.c
+@@ -939,6 +939,15 @@ static int isr_setup_status_phase(struct ci_hdrc *ci)
+ int retval;
+ struct ci_hw_ep *hwep;
+
++ /*
++ * Unexpected USB controller behavior, caused by bad signal integrity
++ * or ground reference problems, can lead to isr_setup_status_phase
++ * being called with ci->status equal to NULL.
++ * If this situation occurs, you should review your USB hardware design.
++ */
++ if (WARN_ON_ONCE(!ci->status))
++ return -EPIPE;
++
+ hwep = (ci->ep0_dir == TX) ? ci->ep0out : ci->ep0in;
+ ci->status->context = ci;
+ ci->status->complete = isr_setup_status_complete;
+diff --git a/drivers/usb/core/config.c b/drivers/usb/core/config.c
+index 80c8d90d8b75..ff44cfa26af8 100644
+--- a/drivers/usb/core/config.c
++++ b/drivers/usb/core/config.c
+@@ -211,8 +211,10 @@ static int usb_parse_endpoint(struct device *ddev, int cfgno, int inum,
+ memcpy(&endpoint->desc, d, n);
+ INIT_LIST_HEAD(&endpoint->urb_list);
+
+- /* Fix up bInterval values outside the legal range. Use 32 ms if no
+- * proper value can be guessed. */
++ /*
++ * Fix up bInterval values outside the legal range.
++ * Use 10 or 8 ms if no proper value can be guessed.
++ */
+ i = 0; /* i = min, j = max, n = default */
+ j = 255;
+ if (usb_endpoint_xfer_int(d)) {
+@@ -221,13 +223,15 @@ static int usb_parse_endpoint(struct device *ddev, int cfgno, int inum,
+ case USB_SPEED_SUPER_PLUS:
+ case USB_SPEED_SUPER:
+ case USB_SPEED_HIGH:
+- /* Many device manufacturers are using full-speed
++ /*
++ * Many device manufacturers are using full-speed
+ * bInterval values in high-speed interrupt endpoint
+- * descriptors. Try to fix those and fall back to a
+- * 32 ms default value otherwise. */
++ * descriptors. Try to fix those and fall back to an
++ * 8-ms default value otherwise.
++ */
+ n = fls(d->bInterval*8);
+ if (n == 0)
+- n = 9; /* 32 ms = 2^(9-1) uframes */
++ n = 7; /* 8 ms = 2^(7-1) uframes */
+ j = 16;
+
+ /*
+@@ -242,10 +246,12 @@ static int usb_parse_endpoint(struct device *ddev, int cfgno, int inum,
+ }
+ break;
+ default: /* USB_SPEED_FULL or _LOW */
+- /* For low-speed, 10 ms is the official minimum.
++ /*
++ * For low-speed, 10 ms is the official minimum.
+ * But some "overclocked" devices might want faster
+- * polling so we'll allow it. */
+- n = 32;
++ * polling so we'll allow it.
++ */
++ n = 10;
+ break;
+ }
+ } else if (usb_endpoint_xfer_isoc(d)) {
+@@ -253,10 +259,10 @@ static int usb_parse_endpoint(struct device *ddev, int cfgno, int inum,
+ j = 16;
+ switch (to_usb_device(ddev)->speed) {
+ case USB_SPEED_HIGH:
+- n = 9; /* 32 ms = 2^(9-1) uframes */
++ n = 7; /* 8 ms = 2^(7-1) uframes */
+ break;
+ default: /* USB_SPEED_FULL */
+- n = 6; /* 32 ms = 2^(6-1) frames */
++ n = 4; /* 8 ms = 2^(4-1) frames */
+ break;
+ }
+ }
+diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
+index 1f37b89e7267..62a5c8d5e028 100644
+--- a/drivers/usb/host/xhci-ring.c
++++ b/drivers/usb/host/xhci-ring.c
+@@ -846,6 +846,10 @@ void xhci_stop_endpoint_command_watchdog(unsigned long arg)
+ spin_lock_irqsave(&xhci->lock, flags);
+
+ ep->stop_cmds_pending--;
++ if (xhci->xhc_state & XHCI_STATE_REMOVING) {
++ spin_unlock_irqrestore(&xhci->lock, flags);
++ return;
++ }
+ if (xhci->xhc_state & XHCI_STATE_DYING) {
+ xhci_dbg_trace(xhci, trace_xhci_dbg_cancel_urb,
+ "Stop EP timer ran, but another timer marked "
+@@ -899,7 +903,7 @@ void xhci_stop_endpoint_command_watchdog(unsigned long arg)
+ spin_unlock_irqrestore(&xhci->lock, flags);
+ xhci_dbg_trace(xhci, trace_xhci_dbg_cancel_urb,
+ "Calling usb_hc_died()");
+- usb_hc_died(xhci_to_hcd(xhci)->primary_hcd);
++ usb_hc_died(xhci_to_hcd(xhci));
+ xhci_dbg_trace(xhci, trace_xhci_dbg_cancel_urb,
+ "xHCI host controller is dead.");
+ }
+diff --git a/drivers/usb/renesas_usbhs/mod.c b/drivers/usb/renesas_usbhs/mod.c
+index d4be5d594896..28965ef4f824 100644
+--- a/drivers/usb/renesas_usbhs/mod.c
++++ b/drivers/usb/renesas_usbhs/mod.c
+@@ -282,9 +282,16 @@ static irqreturn_t usbhs_interrupt(int irq, void *data)
+ if (usbhs_mod_is_host(priv))
+ usbhs_write(priv, INTSTS1, ~irq_state.intsts1 & INTSTS1_MAGIC);
+
+- usbhs_write(priv, BRDYSTS, ~irq_state.brdysts);
++ /*
++ * The driver should not clear the xxxSTS after the line of
++ * "call irq callback functions" because each "if" statement is
++ * possible to call the callback function for avoiding any side effects.
++ */
++ if (irq_state.intsts0 & BRDY)
++ usbhs_write(priv, BRDYSTS, ~irq_state.brdysts);
+ usbhs_write(priv, NRDYSTS, ~irq_state.nrdysts);
+- usbhs_write(priv, BEMPSTS, ~irq_state.bempsts);
++ if (irq_state.intsts0 & BEMP)
++ usbhs_write(priv, BEMPSTS, ~irq_state.bempsts);
+
+ /*
+ * call irq callback functions
+diff --git a/drivers/usb/serial/usb-serial-simple.c b/drivers/usb/serial/usb-serial-simple.c
+index a204782ae530..e98b6e57b703 100644
+--- a/drivers/usb/serial/usb-serial-simple.c
++++ b/drivers/usb/serial/usb-serial-simple.c
+@@ -54,7 +54,8 @@ DEVICE(funsoft, FUNSOFT_IDS);
+ /* Infineon Flashloader driver */
+ #define FLASHLOADER_IDS() \
+ { USB_DEVICE_INTERFACE_CLASS(0x058b, 0x0041, USB_CLASS_CDC_DATA) }, \
+- { USB_DEVICE(0x8087, 0x0716) }
++ { USB_DEVICE(0x8087, 0x0716) }, \
++ { USB_DEVICE(0x8087, 0x0801) }
+ DEVICE(flashloader, FLASHLOADER_IDS);
+
+ /* Google Serial USB SubClass */
+diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
+index 0e044d7ee721..1415f6d58633 100644
+--- a/fs/btrfs/tree-log.c
++++ b/fs/btrfs/tree-log.c
+@@ -2850,6 +2850,7 @@ int btrfs_sync_log(struct btrfs_trans_handle *trans,
+
+ if (log_root_tree->log_transid_committed >= root_log_ctx.log_transid) {
+ blk_finish_plug(&plug);
++ list_del_init(&root_log_ctx.list);
+ mutex_unlock(&log_root_tree->log_mutex);
+ ret = root_log_ctx.log_ret;
+ goto out;
+diff --git a/fs/ext4/crypto_policy.c b/fs/ext4/crypto_policy.c
+index ad050698143f..8a9feb341f31 100644
+--- a/fs/ext4/crypto_policy.c
++++ b/fs/ext4/crypto_policy.c
+@@ -102,6 +102,9 @@ static int ext4_create_encryption_context_from_policy(
+ int ext4_process_policy(const struct ext4_encryption_policy *policy,
+ struct inode *inode)
+ {
++ if (!inode_owner_or_capable(inode))
++ return -EACCES;
++
+ if (policy->version != 0)
+ return -EINVAL;
+
+diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c
+index 5e872fd40e5e..1fb12f9c97a6 100644
+--- a/fs/ext4/ioctl.c
++++ b/fs/ext4/ioctl.c
+@@ -629,7 +629,13 @@ resizefs_out:
+ goto encryption_policy_out;
+ }
+
++ err = mnt_want_write_file(filp);
++ if (err)
++ goto encryption_policy_out;
++
+ err = ext4_process_policy(&policy, inode);
++
++ mnt_drop_write_file(filp);
+ encryption_policy_out:
+ return err;
+ #else
+diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
+index c4dcac8a018d..3c7f0c44cfb3 100644
+--- a/fs/ext4/mballoc.c
++++ b/fs/ext4/mballoc.c
+@@ -815,7 +815,7 @@ static void mb_regenerate_buddy(struct ext4_buddy *e4b)
+ * for this page; do not hold this lock when calling this routine!
+ */
+
+-static int ext4_mb_init_cache(struct page *page, char *incore)
++static int ext4_mb_init_cache(struct page *page, char *incore, gfp_t gfp)
+ {
+ ext4_group_t ngroups;
+ int blocksize;
+@@ -848,7 +848,7 @@ static int ext4_mb_init_cache(struct page *page, char *incore)
+ /* allocate buffer_heads to read bitmaps */
+ if (groups_per_page > 1) {
+ i = sizeof(struct buffer_head *) * groups_per_page;
+- bh = kzalloc(i, GFP_NOFS);
++ bh = kzalloc(i, gfp);
+ if (bh == NULL) {
+ err = -ENOMEM;
+ goto out;
+@@ -983,7 +983,7 @@ out:
+ * are on the same page e4b->bd_buddy_page is NULL and return value is 0.
+ */
+ static int ext4_mb_get_buddy_page_lock(struct super_block *sb,
+- ext4_group_t group, struct ext4_buddy *e4b)
++ ext4_group_t group, struct ext4_buddy *e4b, gfp_t gfp)
+ {
+ struct inode *inode = EXT4_SB(sb)->s_buddy_cache;
+ int block, pnum, poff;
+@@ -1002,7 +1002,7 @@ static int ext4_mb_get_buddy_page_lock(struct super_block *sb,
+ block = group * 2;
+ pnum = block / blocks_per_page;
+ poff = block % blocks_per_page;
+- page = find_or_create_page(inode->i_mapping, pnum, GFP_NOFS);
++ page = find_or_create_page(inode->i_mapping, pnum, gfp);
+ if (!page)
+ return -ENOMEM;
+ BUG_ON(page->mapping != inode->i_mapping);
+@@ -1016,7 +1016,7 @@ static int ext4_mb_get_buddy_page_lock(struct super_block *sb,
+
+ block++;
+ pnum = block / blocks_per_page;
+- page = find_or_create_page(inode->i_mapping, pnum, GFP_NOFS);
++ page = find_or_create_page(inode->i_mapping, pnum, gfp);
+ if (!page)
+ return -ENOMEM;
+ BUG_ON(page->mapping != inode->i_mapping);
+@@ -1042,7 +1042,7 @@ static void ext4_mb_put_buddy_page_lock(struct ext4_buddy *e4b)
+ * calling this routine!
+ */
+ static noinline_for_stack
+-int ext4_mb_init_group(struct super_block *sb, ext4_group_t group)
++int ext4_mb_init_group(struct super_block *sb, ext4_group_t group, gfp_t gfp)
+ {
+
+ struct ext4_group_info *this_grp;
+@@ -1062,7 +1062,7 @@ int ext4_mb_init_group(struct super_block *sb, ext4_group_t group)
+ * The call to ext4_mb_get_buddy_page_lock will mark the
+ * page accessed.
+ */
+- ret = ext4_mb_get_buddy_page_lock(sb, group, &e4b);
++ ret = ext4_mb_get_buddy_page_lock(sb, group, &e4b, gfp);
+ if (ret || !EXT4_MB_GRP_NEED_INIT(this_grp)) {
+ /*
+ * somebody initialized the group
+@@ -1072,7 +1072,7 @@ int ext4_mb_init_group(struct super_block *sb, ext4_group_t group)
+ }
+
+ page = e4b.bd_bitmap_page;
+- ret = ext4_mb_init_cache(page, NULL);
++ ret = ext4_mb_init_cache(page, NULL, gfp);
+ if (ret)
+ goto err;
+ if (!PageUptodate(page)) {
+@@ -1091,7 +1091,7 @@ int ext4_mb_init_group(struct super_block *sb, ext4_group_t group)
+ }
+ /* init buddy cache */
+ page = e4b.bd_buddy_page;
+- ret = ext4_mb_init_cache(page, e4b.bd_bitmap);
++ ret = ext4_mb_init_cache(page, e4b.bd_bitmap, gfp);
+ if (ret)
+ goto err;
+ if (!PageUptodate(page)) {
+@@ -1109,8 +1109,8 @@ err:
+ * calling this routine!
+ */
+ static noinline_for_stack int
+-ext4_mb_load_buddy(struct super_block *sb, ext4_group_t group,
+- struct ext4_buddy *e4b)
++ext4_mb_load_buddy_gfp(struct super_block *sb, ext4_group_t group,
++ struct ext4_buddy *e4b, gfp_t gfp)
+ {
+ int blocks_per_page;
+ int block;
+@@ -1140,7 +1140,7 @@ ext4_mb_load_buddy(struct super_block *sb, ext4_group_t group,
+ * we need full data about the group
+ * to make a good selection
+ */
+- ret = ext4_mb_init_group(sb, group);
++ ret = ext4_mb_init_group(sb, group, gfp);
+ if (ret)
+ return ret;
+ }
+@@ -1168,11 +1168,11 @@ ext4_mb_load_buddy(struct super_block *sb, ext4_group_t group,
+ * wait for it to initialize.
+ */
+ page_cache_release(page);
+- page = find_or_create_page(inode->i_mapping, pnum, GFP_NOFS);
++ page = find_or_create_page(inode->i_mapping, pnum, gfp);
+ if (page) {
+ BUG_ON(page->mapping != inode->i_mapping);
+ if (!PageUptodate(page)) {
+- ret = ext4_mb_init_cache(page, NULL);
++ ret = ext4_mb_init_cache(page, NULL, gfp);
+ if (ret) {
+ unlock_page(page);
+ goto err;
+@@ -1204,11 +1204,12 @@ ext4_mb_load_buddy(struct super_block *sb, ext4_group_t group,
+ if (page == NULL || !PageUptodate(page)) {
+ if (page)
+ page_cache_release(page);
+- page = find_or_create_page(inode->i_mapping, pnum, GFP_NOFS);
++ page = find_or_create_page(inode->i_mapping, pnum, gfp);
+ if (page) {
+ BUG_ON(page->mapping != inode->i_mapping);
+ if (!PageUptodate(page)) {
+- ret = ext4_mb_init_cache(page, e4b->bd_bitmap);
++ ret = ext4_mb_init_cache(page, e4b->bd_bitmap,
++ gfp);
+ if (ret) {
+ unlock_page(page);
+ goto err;
+@@ -1247,6 +1248,12 @@ err:
+ return ret;
+ }
+
++static int ext4_mb_load_buddy(struct super_block *sb, ext4_group_t group,
++ struct ext4_buddy *e4b)
++{
++ return ext4_mb_load_buddy_gfp(sb, group, e4b, GFP_NOFS);
++}
++
+ static void ext4_mb_unload_buddy(struct ext4_buddy *e4b)
+ {
+ if (e4b->bd_bitmap_page)
+@@ -2047,7 +2054,7 @@ static int ext4_mb_good_group(struct ext4_allocation_context *ac,
+
+ /* We only do this if the grp has never been initialized */
+ if (unlikely(EXT4_MB_GRP_NEED_INIT(grp))) {
+- int ret = ext4_mb_init_group(ac->ac_sb, group);
++ int ret = ext4_mb_init_group(ac->ac_sb, group, GFP_NOFS);
+ if (ret)
+ return ret;
+ }
+@@ -4808,7 +4815,9 @@ do_more:
+ #endif
+ trace_ext4_mballoc_free(sb, inode, block_group, bit, count_clusters);
+
+- err = ext4_mb_load_buddy(sb, block_group, &e4b);
++ /* __GFP_NOFAIL: retry infinitely, ignore TIF_MEMDIE and memcg limit. */
++ err = ext4_mb_load_buddy_gfp(sb, block_group, &e4b,
++ GFP_NOFS|__GFP_NOFAIL);
+ if (err)
+ goto error_return;
+
+@@ -5210,7 +5219,7 @@ int ext4_trim_fs(struct super_block *sb, struct fstrim_range *range)
+ grp = ext4_get_group_info(sb, group);
+ /* We only do this if the grp has never been initialized */
+ if (unlikely(EXT4_MB_GRP_NEED_INIT(grp))) {
+- ret = ext4_mb_init_group(sb, group);
++ ret = ext4_mb_init_group(sb, group, GFP_NOFS);
+ if (ret)
+ break;
+ }
+diff --git a/fs/f2fs/crypto_policy.c b/fs/f2fs/crypto_policy.c
+index d4a96af513c2..e504f548b64e 100644
+--- a/fs/f2fs/crypto_policy.c
++++ b/fs/f2fs/crypto_policy.c
+@@ -89,6 +89,9 @@ static int f2fs_create_encryption_context_from_policy(
+ int f2fs_process_policy(const struct f2fs_encryption_policy *policy,
+ struct inode *inode)
+ {
++ if (!inode_owner_or_capable(inode))
++ return -EACCES;
++
+ if (policy->version != 0)
+ return -EINVAL;
+
+diff --git a/fs/fuse/file.c b/fs/fuse/file.c
+index d58d4c0af0ce..682e79965c16 100644
+--- a/fs/fuse/file.c
++++ b/fs/fuse/file.c
+@@ -540,13 +540,13 @@ void fuse_read_fill(struct fuse_req *req, struct file *file, loff_t pos,
+ req->out.args[0].size = count;
+ }
+
+-static void fuse_release_user_pages(struct fuse_req *req, int write)
++static void fuse_release_user_pages(struct fuse_req *req, bool should_dirty)
+ {
+ unsigned i;
+
+ for (i = 0; i < req->num_pages; i++) {
+ struct page *page = req->pages[i];
+- if (write)
++ if (should_dirty)
+ set_page_dirty_lock(page);
+ put_page(page);
+ }
+@@ -1331,6 +1331,7 @@ ssize_t fuse_direct_io(struct fuse_io_priv *io, struct iov_iter *iter,
+ loff_t *ppos, int flags)
+ {
+ int write = flags & FUSE_DIO_WRITE;
++ bool should_dirty = !write && iter_is_iovec(iter);
+ int cuse = flags & FUSE_DIO_CUSE;
+ struct file *file = io->file;
+ struct inode *inode = file->f_mapping->host;
+@@ -1375,7 +1376,7 @@ ssize_t fuse_direct_io(struct fuse_io_priv *io, struct iov_iter *iter,
+ nres = fuse_send_read(req, io, pos, nbytes, owner);
+
+ if (!io->async)
+- fuse_release_user_pages(req, !write);
++ fuse_release_user_pages(req, should_dirty);
+ if (req->out.h.error) {
+ if (!res)
+ res = req->out.h.error;
+diff --git a/fs/kernfs/file.c b/fs/kernfs/file.c
+index 7247252ee9b1..6e9a912d394c 100644
+--- a/fs/kernfs/file.c
++++ b/fs/kernfs/file.c
+@@ -833,21 +833,35 @@ repeat:
+ mutex_lock(&kernfs_mutex);
+
+ list_for_each_entry(info, &kernfs_root(kn)->supers, node) {
++ struct kernfs_node *parent;
+ struct inode *inode;
+- struct dentry *dentry;
+
++ /*
++ * We want fsnotify_modify() on @kn but as the
++ * modifications aren't originating from userland don't
++ * have the matching @file available. Look up the inodes
++ * and generate the events manually.
++ */
+ inode = ilookup(info->sb, kn->ino);
+ if (!inode)
+ continue;
+
+- dentry = d_find_any_alias(inode);
+- if (dentry) {
+- fsnotify_parent(NULL, dentry, FS_MODIFY);
+- fsnotify(inode, FS_MODIFY, inode, FSNOTIFY_EVENT_INODE,
+- NULL, 0);
+- dput(dentry);
++ parent = kernfs_get_parent(kn);
++ if (parent) {
++ struct inode *p_inode;
++
++ p_inode = ilookup(info->sb, parent->ino);
++ if (p_inode) {
++ fsnotify(p_inode, FS_MODIFY | FS_EVENT_ON_CHILD,
++ inode, FSNOTIFY_EVENT_INODE, kn->name, 0);
++ iput(p_inode);
++ }
++
++ kernfs_put(parent);
+ }
+
++ fsnotify(inode, FS_MODIFY, inode, FSNOTIFY_EVENT_INODE,
++ kn->name, 0);
+ iput(inode);
+ }
+
+diff --git a/fs/nfs/callback.c b/fs/nfs/callback.c
+index a7f2e6e33305..52a28311e2a4 100644
+--- a/fs/nfs/callback.c
++++ b/fs/nfs/callback.c
+@@ -275,6 +275,7 @@ static int nfs_callback_up_net(int minorversion, struct svc_serv *serv,
+ err_socks:
+ svc_rpcb_cleanup(serv, net);
+ err_bind:
++ nn->cb_users[minorversion]--;
+ dprintk("NFS: Couldn't create callback socket: err = %d; "
+ "net = %p\n", ret, net);
+ return ret;
+diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
+index fc215ab4dcd5..3c69299c01ab 100644
+--- a/fs/nfs/nfs4proc.c
++++ b/fs/nfs/nfs4proc.c
+@@ -7424,12 +7424,20 @@ static int _nfs4_proc_create_session(struct nfs_client *clp,
+ status = rpc_call_sync(session->clp->cl_rpcclient, &msg, RPC_TASK_TIMEOUT);
+ trace_nfs4_create_session(clp, status);
+
++ switch (status) {
++ case -NFS4ERR_STALE_CLIENTID:
++ case -NFS4ERR_DELAY:
++ case -ETIMEDOUT:
++ case -EACCES:
++ case -EAGAIN:
++ goto out;
++ };
++
++ clp->cl_seqid++;
+ if (!status) {
+ /* Verify the session's negotiated channel_attrs values */
+ status = nfs4_verify_channel_attrs(&args, &res);
+ /* Increment the clientid slot sequence id */
+- if (clp->cl_seqid == res.seqid)
+- clp->cl_seqid++;
+ if (status)
+ goto out;
+ nfs4_update_session(session, &res);
+diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c
+index bec0384499f7..5cd3568eea06 100644
+--- a/fs/nfs/pnfs.c
++++ b/fs/nfs/pnfs.c
+@@ -365,6 +365,9 @@ pnfs_layout_need_return(struct pnfs_layout_hdr *lo,
+ static bool
+ pnfs_prepare_layoutreturn(struct pnfs_layout_hdr *lo)
+ {
++ /* Serialise LAYOUTGET/LAYOUTRETURN */
++ if (atomic_read(&lo->plh_outstanding) != 0)
++ return false;
+ if (test_and_set_bit(NFS_LAYOUT_RETURN, &lo->plh_flags))
+ return false;
+ lo->plh_return_iomode = 0;
+@@ -1530,6 +1533,7 @@ pnfs_update_layout(struct inode *ino,
+ goto out;
+
+ lookup_again:
++ nfs4_client_recover_expired_lease(clp);
+ first = false;
+ spin_lock(&ino->i_lock);
+ lo = pnfs_find_alloc_layout(ino, ctx, gfp_flags);
+diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
+index f7ea624780a7..55638110cb06 100644
+--- a/fs/nfsd/nfs4state.c
++++ b/fs/nfsd/nfs4state.c
+@@ -1200,27 +1200,6 @@ free_ol_stateid_reaplist(struct list_head *reaplist)
+ }
+ }
+
+-static void release_lockowner(struct nfs4_lockowner *lo)
+-{
+- struct nfs4_client *clp = lo->lo_owner.so_client;
+- struct nfs4_ol_stateid *stp;
+- struct list_head reaplist;
+-
+- INIT_LIST_HEAD(&reaplist);
+-
+- spin_lock(&clp->cl_lock);
+- unhash_lockowner_locked(lo);
+- while (!list_empty(&lo->lo_owner.so_stateids)) {
+- stp = list_first_entry(&lo->lo_owner.so_stateids,
+- struct nfs4_ol_stateid, st_perstateowner);
+- WARN_ON(!unhash_lock_stateid(stp));
+- put_ol_stateid_locked(stp, &reaplist);
+- }
+- spin_unlock(&clp->cl_lock);
+- free_ol_stateid_reaplist(&reaplist);
+- nfs4_put_stateowner(&lo->lo_owner);
+-}
+-
+ static void release_open_stateid_locks(struct nfs4_ol_stateid *open_stp,
+ struct list_head *reaplist)
+ {
+@@ -5952,6 +5931,7 @@ nfsd4_release_lockowner(struct svc_rqst *rqstp,
+ __be32 status;
+ struct nfsd_net *nn = net_generic(SVC_NET(rqstp), nfsd_net_id);
+ struct nfs4_client *clp;
++ LIST_HEAD (reaplist);
+
+ dprintk("nfsd4_release_lockowner clientid: (%08x/%08x):\n",
+ clid->cl_boot, clid->cl_id);
+@@ -5982,9 +5962,23 @@ nfsd4_release_lockowner(struct svc_rqst *rqstp,
+ nfs4_get_stateowner(sop);
+ break;
+ }
++ if (!lo) {
++ spin_unlock(&clp->cl_lock);
++ return status;
++ }
++
++ unhash_lockowner_locked(lo);
++ while (!list_empty(&lo->lo_owner.so_stateids)) {
++ stp = list_first_entry(&lo->lo_owner.so_stateids,
++ struct nfs4_ol_stateid,
++ st_perstateowner);
++ WARN_ON(!unhash_lock_stateid(stp));
++ put_ol_stateid_locked(stp, &reaplist);
++ }
+ spin_unlock(&clp->cl_lock);
+- if (lo)
+- release_lockowner(lo);
++ free_ol_stateid_reaplist(&reaplist);
++ nfs4_put_stateowner(&lo->lo_owner);
++
+ return status;
+ }
+
+diff --git a/fs/proc/base.c b/fs/proc/base.c
+index e8bbf6cdb437..d2b8c754f627 100644
+--- a/fs/proc/base.c
++++ b/fs/proc/base.c
+@@ -1545,18 +1545,13 @@ static const struct file_operations proc_pid_set_comm_operations = {
+ static int proc_exe_link(struct dentry *dentry, struct path *exe_path)
+ {
+ struct task_struct *task;
+- struct mm_struct *mm;
+ struct file *exe_file;
+
+ task = get_proc_task(d_inode(dentry));
+ if (!task)
+ return -ENOENT;
+- mm = get_task_mm(task);
++ exe_file = get_task_exe_file(task);
+ put_task_struct(task);
+- if (!mm)
+- return -ENOENT;
+- exe_file = get_mm_exe_file(mm);
+- mmput(mm);
+ if (exe_file) {
+ *exe_path = exe_file->f_path;
+ path_get(&exe_file->f_path);
+diff --git a/include/asm-generic/uaccess.h b/include/asm-generic/uaccess.h
+index 1bfa602958f2..32901d11f8c4 100644
+--- a/include/asm-generic/uaccess.h
++++ b/include/asm-generic/uaccess.h
+@@ -230,14 +230,18 @@ extern int __put_user_bad(void) __attribute__((noreturn));
+ might_fault(); \
+ access_ok(VERIFY_READ, __p, sizeof(*ptr)) ? \
+ __get_user((x), (__typeof__(*(ptr)) *)__p) : \
+- -EFAULT; \
++ ((x) = (__typeof__(*(ptr)))0,-EFAULT); \
+ })
+
+ #ifndef __get_user_fn
+ static inline int __get_user_fn(size_t size, const void __user *ptr, void *x)
+ {
+- size = __copy_from_user(x, ptr, size);
+- return size ? -EFAULT : size;
++ size_t n = __copy_from_user(x, ptr, size);
++ if (unlikely(n)) {
++ memset(x + (size - n), 0, n);
++ return -EFAULT;
++ }
++ return 0;
+ }
+
+ #define __get_user_fn(sz, u, k) __get_user_fn(sz, u, k)
+@@ -257,11 +261,13 @@ extern int __get_user_bad(void) __attribute__((noreturn));
+ static inline long copy_from_user(void *to,
+ const void __user * from, unsigned long n)
+ {
++ unsigned long res = n;
+ might_fault();
+- if (access_ok(VERIFY_READ, from, n))
+- return __copy_from_user(to, from, n);
+- else
+- return n;
++ if (likely(access_ok(VERIFY_READ, from, n)))
++ res = __copy_from_user(to, from, n);
++ if (unlikely(res))
++ memset(to + (n - res), 0, res);
++ return res;
+ }
+
+ static inline long copy_to_user(void __user *to,
+diff --git a/include/linux/irq.h b/include/linux/irq.h
+index 3c1c96786248..f7cade00c525 100644
+--- a/include/linux/irq.h
++++ b/include/linux/irq.h
+@@ -916,6 +916,16 @@ static inline void irq_gc_lock(struct irq_chip_generic *gc) { }
+ static inline void irq_gc_unlock(struct irq_chip_generic *gc) { }
+ #endif
+
++/*
++ * The irqsave variants are for usage in non interrupt code. Do not use
++ * them in irq_chip callbacks. Use irq_gc_lock() instead.
++ */
++#define irq_gc_lock_irqsave(gc, flags) \
++ raw_spin_lock_irqsave(&(gc)->lock, flags)
++
++#define irq_gc_unlock_irqrestore(gc, flags) \
++ raw_spin_unlock_irqrestore(&(gc)->lock, flags)
++
+ static inline void irq_reg_writel(struct irq_chip_generic *gc,
+ u32 val, int reg_offset)
+ {
+diff --git a/include/linux/mfd/ti_am335x_tscadc.h b/include/linux/mfd/ti_am335x_tscadc.h
+index 1fd50dcfe47c..175c82699e9d 100644
+--- a/include/linux/mfd/ti_am335x_tscadc.h
++++ b/include/linux/mfd/ti_am335x_tscadc.h
+@@ -138,16 +138,16 @@
+ /*
+ * time in us for processing a single channel, calculated as follows:
+ *
+- * num cycles = open delay + (sample delay + conv time) * averaging
++ * max num cycles = open delay + (sample delay + conv time) * averaging
+ *
+- * num cycles: 152 + (1 + 13) * 16 = 376
++ * max num cycles: 262143 + (255 + 13) * 16 = 266431
+ *
+ * clock frequency: 26MHz / 8 = 3.25MHz
+ * clock period: 1 / 3.25MHz = 308ns
+ *
+- * processing time: 376 * 308ns = 116us
++ * max processing time: 266431 * 308ns = 83ms(approx)
+ */
+-#define IDLE_TIMEOUT 116 /* microsec */
++#define IDLE_TIMEOUT 83 /* milliseconds */
+
+ #define TSCADC_CELLS 2
+
+diff --git a/include/linux/mm.h b/include/linux/mm.h
+index 8a761248d01e..cfebb742ee18 100644
+--- a/include/linux/mm.h
++++ b/include/linux/mm.h
+@@ -1898,6 +1898,7 @@ extern void mm_drop_all_locks(struct mm_struct *mm);
+
+ extern void set_mm_exe_file(struct mm_struct *mm, struct file *new_exe_file);
+ extern struct file *get_mm_exe_file(struct mm_struct *mm);
++extern struct file *get_task_exe_file(struct task_struct *task);
+
+ extern int may_expand_vm(struct mm_struct *mm, unsigned long npages);
+ extern struct vm_area_struct *_install_special_mapping(struct mm_struct *mm,
+diff --git a/include/linux/mmc/dw_mmc.h b/include/linux/mmc/dw_mmc.h
+index f67b2ec18e6d..7776afb0ffa5 100644
+--- a/include/linux/mmc/dw_mmc.h
++++ b/include/linux/mmc/dw_mmc.h
+@@ -172,7 +172,7 @@ struct dw_mci {
+ /* For edmac */
+ struct dw_mci_dma_slave *dms;
+ /* Registers's physical base address */
+- void *phy_regs;
++ resource_size_t phy_regs;
+
+ u32 cmd_status;
+ u32 data_status;
+diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
+index 04c068e55353..b97d6823ef3c 100644
+--- a/include/linux/netdevice.h
++++ b/include/linux/netdevice.h
+@@ -511,7 +511,6 @@ static inline void napi_enable(struct napi_struct *n)
+ clear_bit(NAPI_STATE_NPSVC, &n->state);
+ }
+
+-#ifdef CONFIG_SMP
+ /**
+ * napi_synchronize - wait until NAPI is not running
+ * @n: napi context
+@@ -522,12 +521,12 @@ static inline void napi_enable(struct napi_struct *n)
+ */
+ static inline void napi_synchronize(const struct napi_struct *n)
+ {
+- while (test_bit(NAPI_STATE_SCHED, &n->state))
+- msleep(1);
++ if (IS_ENABLED(CONFIG_SMP))
++ while (test_bit(NAPI_STATE_SCHED, &n->state))
++ msleep(1);
++ else
++ barrier();
+ }
+-#else
+-# define napi_synchronize(n) barrier()
+-#endif
+
+ enum netdev_queue_state_t {
+ __QUEUE_STATE_DRV_XOFF,
+diff --git a/include/linux/uio.h b/include/linux/uio.h
+index 8b01e1c3c614..5f9c59da978b 100644
+--- a/include/linux/uio.h
++++ b/include/linux/uio.h
+@@ -76,7 +76,7 @@ size_t iov_iter_copy_from_user_atomic(struct page *page,
+ struct iov_iter *i, unsigned long offset, size_t bytes);
+ void iov_iter_advance(struct iov_iter *i, size_t bytes);
+ int iov_iter_fault_in_readable(struct iov_iter *i, size_t bytes);
+-int iov_iter_fault_in_multipages_readable(struct iov_iter *i, size_t bytes);
++#define iov_iter_fault_in_multipages_readable iov_iter_fault_in_readable
+ size_t iov_iter_single_seg_count(const struct iov_iter *i);
+ size_t copy_page_to_iter(struct page *page, size_t offset, size_t bytes,
+ struct iov_iter *i);
+diff --git a/kernel/audit_watch.c b/kernel/audit_watch.c
+index 656c7e93ac0d..939945a5649c 100644
+--- a/kernel/audit_watch.c
++++ b/kernel/audit_watch.c
+@@ -19,6 +19,7 @@
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
++#include <linux/file.h>
+ #include <linux/kernel.h>
+ #include <linux/audit.h>
+ #include <linux/kthread.h>
+@@ -544,10 +545,11 @@ int audit_exe_compare(struct task_struct *tsk, struct audit_fsnotify_mark *mark)
+ unsigned long ino;
+ dev_t dev;
+
+- rcu_read_lock();
+- exe_file = rcu_dereference(tsk->mm->exe_file);
++ exe_file = get_task_exe_file(tsk);
++ if (!exe_file)
++ return 0;
+ ino = exe_file->f_inode->i_ino;
+ dev = exe_file->f_inode->i_sb->s_dev;
+- rcu_read_unlock();
++ fput(exe_file);
+ return audit_mark_compare(mark, ino, dev);
+ }
+diff --git a/kernel/configs/tiny.config b/kernel/configs/tiny.config
+index c2de56ab0fce..7fa0c4ae6394 100644
+--- a/kernel/configs/tiny.config
++++ b/kernel/configs/tiny.config
+@@ -1,4 +1,12 @@
++# CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE is not set
+ CONFIG_CC_OPTIMIZE_FOR_SIZE=y
++# CONFIG_KERNEL_GZIP is not set
++# CONFIG_KERNEL_BZIP2 is not set
++# CONFIG_KERNEL_LZMA is not set
+ CONFIG_KERNEL_XZ=y
++# CONFIG_KERNEL_LZO is not set
++# CONFIG_KERNEL_LZ4 is not set
+ CONFIG_OPTIMIZE_INLINING=y
++# CONFIG_SLAB is not set
++# CONFIG_SLUB is not set
+ CONFIG_SLOB=y
+diff --git a/kernel/cpuset.c b/kernel/cpuset.c
+index 11eaf14b52c2..e120bd983ad0 100644
+--- a/kernel/cpuset.c
++++ b/kernel/cpuset.c
+@@ -2074,6 +2074,20 @@ static void cpuset_bind(struct cgroup_subsys_state *root_css)
+ mutex_unlock(&cpuset_mutex);
+ }
+
++/*
++ * Make sure the new task conform to the current state of its parent,
++ * which could have been changed by cpuset just after it inherits the
++ * state from the parent and before it sits on the cgroup's task list.
++ */
++void cpuset_fork(struct task_struct *task)
++{
++ if (task_css_is_root(task, cpuset_cgrp_id))
++ return;
++
++ set_cpus_allowed_ptr(task, ¤t->cpus_allowed);
++ task->mems_allowed = current->mems_allowed;
++}
++
+ struct cgroup_subsys cpuset_cgrp_subsys = {
+ .css_alloc = cpuset_css_alloc,
+ .css_online = cpuset_css_online,
+@@ -2084,6 +2098,7 @@ struct cgroup_subsys cpuset_cgrp_subsys = {
+ .attach = cpuset_attach,
+ .post_attach = cpuset_post_attach,
+ .bind = cpuset_bind,
++ .fork = cpuset_fork,
+ .legacy_cftypes = files,
+ .early_init = 1,
+ };
+diff --git a/kernel/fork.c b/kernel/fork.c
+index c485cb156772..8860d1f50d24 100644
+--- a/kernel/fork.c
++++ b/kernel/fork.c
+@@ -764,6 +764,29 @@ struct file *get_mm_exe_file(struct mm_struct *mm)
+ EXPORT_SYMBOL(get_mm_exe_file);
+
+ /**
++ * get_task_exe_file - acquire a reference to the task's executable file
++ *
++ * Returns %NULL if task's mm (if any) has no associated executable file or
++ * this is a kernel thread with borrowed mm (see the comment above get_task_mm).
++ * User must release file via fput().
++ */
++struct file *get_task_exe_file(struct task_struct *task)
++{
++ struct file *exe_file = NULL;
++ struct mm_struct *mm;
++
++ task_lock(task);
++ mm = task->mm;
++ if (mm) {
++ if (!(task->flags & PF_KTHREAD))
++ exe_file = get_mm_exe_file(mm);
++ }
++ task_unlock(task);
++ return exe_file;
++}
++EXPORT_SYMBOL(get_task_exe_file);
++
++/**
+ * get_task_mm - acquire a reference to the task's mm
+ *
+ * Returns %NULL if the task has no mm. Checks PF_KTHREAD (meaning
+diff --git a/kernel/irq/msi.c b/kernel/irq/msi.c
+index 4b21779d5163..cd6009006510 100644
+--- a/kernel/irq/msi.c
++++ b/kernel/irq/msi.c
+@@ -298,6 +298,7 @@ int msi_domain_alloc_irqs(struct irq_domain *domain, struct device *dev,
+ ops->msi_finish(&arg, 0);
+
+ for_each_msi_entry(desc, dev) {
++ virq = desc->irq;
+ if (desc->nvec_used == 1)
+ dev_dbg(dev, "irq %d for MSI\n", virq);
+ else
+diff --git a/kernel/kexec_file.c b/kernel/kexec_file.c
+index b70ada0028d2..6030efd4a188 100644
+--- a/kernel/kexec_file.c
++++ b/kernel/kexec_file.c
+@@ -934,7 +934,10 @@ int kexec_load_purgatory(struct kimage *image, unsigned long min,
+ return 0;
+ out:
+ vfree(pi->sechdrs);
++ pi->sechdrs = NULL;
++
+ vfree(pi->purgatory_buf);
++ pi->purgatory_buf = NULL;
+ return ret;
+ }
+
+diff --git a/kernel/sched/core.c b/kernel/sched/core.c
+index ea863bc22caf..20253dbc8610 100644
+--- a/kernel/sched/core.c
++++ b/kernel/sched/core.c
+@@ -1945,6 +1945,28 @@ try_to_wake_up(struct task_struct *p, unsigned int state, int wake_flags)
+ success = 1; /* we're going to change ->state */
+ cpu = task_cpu(p);
+
++ /*
++ * Ensure we load p->on_rq _after_ p->state, otherwise it would
++ * be possible to, falsely, observe p->on_rq == 0 and get stuck
++ * in smp_cond_load_acquire() below.
++ *
++ * sched_ttwu_pending() try_to_wake_up()
++ * [S] p->on_rq = 1; [L] P->state
++ * UNLOCK rq->lock -----.
++ * \
++ * +--- RMB
++ * schedule() /
++ * LOCK rq->lock -----'
++ * UNLOCK rq->lock
++ *
++ * [task p]
++ * [S] p->state = UNINTERRUPTIBLE [L] p->on_rq
++ *
++ * Pairs with the UNLOCK+LOCK on rq->lock from the
++ * last wakeup of our task and the schedule that got our task
++ * current.
++ */
++ smp_rmb();
+ if (p->on_rq && ttwu_remote(p, wake_flags))
+ goto stat;
+
+diff --git a/lib/iov_iter.c b/lib/iov_iter.c
+index 75232ad0a5e7..daca582a8ed0 100644
+--- a/lib/iov_iter.c
++++ b/lib/iov_iter.c
+@@ -298,33 +298,13 @@ done:
+ }
+
+ /*
+- * Fault in the first iovec of the given iov_iter, to a maximum length
+- * of bytes. Returns 0 on success, or non-zero if the memory could not be
+- * accessed (ie. because it is an invalid address).
+- *
+- * writev-intensive code may want this to prefault several iovecs -- that
+- * would be possible (callers must not rely on the fact that _only_ the
+- * first iovec will be faulted with the current implementation).
+- */
+-int iov_iter_fault_in_readable(struct iov_iter *i, size_t bytes)
+-{
+- if (!(i->type & (ITER_BVEC|ITER_KVEC))) {
+- char __user *buf = i->iov->iov_base + i->iov_offset;
+- bytes = min(bytes, i->iov->iov_len - i->iov_offset);
+- return fault_in_pages_readable(buf, bytes);
+- }
+- return 0;
+-}
+-EXPORT_SYMBOL(iov_iter_fault_in_readable);
+-
+-/*
+ * Fault in one or more iovecs of the given iov_iter, to a maximum length of
+ * bytes. For each iovec, fault in each page that constitutes the iovec.
+ *
+ * Return 0 on success, or non-zero if the memory could not be accessed (i.e.
+ * because it is an invalid address).
+ */
+-int iov_iter_fault_in_multipages_readable(struct iov_iter *i, size_t bytes)
++int iov_iter_fault_in_readable(struct iov_iter *i, size_t bytes)
+ {
+ size_t skip = i->iov_offset;
+ const struct iovec *iov;
+@@ -341,7 +321,7 @@ int iov_iter_fault_in_multipages_readable(struct iov_iter *i, size_t bytes)
+ }
+ return 0;
+ }
+-EXPORT_SYMBOL(iov_iter_fault_in_multipages_readable);
++EXPORT_SYMBOL(iov_iter_fault_in_readable);
+
+ void iov_iter_init(struct iov_iter *i, int direction,
+ const struct iovec *iov, unsigned long nr_segs,
+diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
+index e8d3da0817d3..036b39eb1220 100644
+--- a/net/ipv6/addrconf.c
++++ b/net/ipv6/addrconf.c
+@@ -1898,6 +1898,7 @@ errdad:
+ spin_unlock_bh(&ifp->lock);
+
+ addrconf_mod_dad_work(ifp, 0);
++ in6_ifa_put(ifp);
+ }
+
+ /* Join to solicited addr multicast group.
+@@ -3609,6 +3610,7 @@ static void addrconf_dad_work(struct work_struct *w)
+ addrconf_dad_begin(ifp);
+ goto out;
+ } else if (action == DAD_ABORT) {
++ in6_ifa_hold(ifp);
+ addrconf_dad_stop(ifp, 1);
+ goto out;
+ }
+diff --git a/net/tipc/link.c b/net/tipc/link.c
+index 91aea071ab27..72268eac4ec7 100644
+--- a/net/tipc/link.c
++++ b/net/tipc/link.c
+@@ -1262,6 +1262,8 @@ static int tipc_link_proto_rcv(struct tipc_link *l, struct sk_buff *skb,
+ /* fall thru' */
+
+ case ACTIVATE_MSG:
++ skb_linearize(skb);
++ hdr = buf_msg(skb);
+
+ /* Complete own link name with peer's interface name */
+ if_name = strrchr(l->name, ':') + 1;
+diff --git a/net/tipc/name_distr.c b/net/tipc/name_distr.c
+index c07612bab95c..f51c8bdbea1c 100644
+--- a/net/tipc/name_distr.c
++++ b/net/tipc/name_distr.c
+@@ -397,6 +397,7 @@ void tipc_named_rcv(struct net *net, struct sk_buff_head *inputq)
+
+ spin_lock_bh(&tn->nametbl_lock);
+ for (skb = skb_dequeue(inputq); skb; skb = skb_dequeue(inputq)) {
++ skb_linearize(skb);
+ msg = buf_msg(skb);
+ mtype = msg_type(msg);
+ item = (struct distr_item *)msg_data(msg);
+diff --git a/net/tipc/udp_media.c b/net/tipc/udp_media.c
+index 70c03271b798..6af78c6276b4 100644
+--- a/net/tipc/udp_media.c
++++ b/net/tipc/udp_media.c
+@@ -48,7 +48,6 @@
+ #include <linux/tipc_netlink.h>
+ #include "core.h"
+ #include "bearer.h"
+-#include "msg.h"
+
+ /* IANA assigned UDP port */
+ #define UDP_PORT_DEFAULT 6118
+@@ -224,10 +223,6 @@ static int tipc_udp_recv(struct sock *sk, struct sk_buff *skb)
+ {
+ struct udp_bearer *ub;
+ struct tipc_bearer *b;
+- int usr = msg_user(buf_msg(skb));
+-
+- if ((usr == LINK_PROTOCOL) || (usr == NAME_DISTRIBUTOR))
+- skb_linearize(skb);
+
+ ub = rcu_dereference_sk_user_data(sk);
+ if (!ub) {
+diff --git a/net/wireless/wext-core.c b/net/wireless/wext-core.c
+index c753211cb83f..b50ee5d622e1 100644
+--- a/net/wireless/wext-core.c
++++ b/net/wireless/wext-core.c
+@@ -955,29 +955,8 @@ static int wireless_process_ioctl(struct net *net, struct ifreq *ifr,
+ return private(dev, iwr, cmd, info, handler);
+ }
+ /* Old driver API : call driver ioctl handler */
+- if (dev->netdev_ops->ndo_do_ioctl) {
+-#ifdef CONFIG_COMPAT
+- if (info->flags & IW_REQUEST_FLAG_COMPAT) {
+- int ret = 0;
+- struct iwreq iwr_lcl;
+- struct compat_iw_point *iwp_compat = (void *) &iwr->u.data;
+-
+- memcpy(&iwr_lcl, iwr, sizeof(struct iwreq));
+- iwr_lcl.u.data.pointer = compat_ptr(iwp_compat->pointer);
+- iwr_lcl.u.data.length = iwp_compat->length;
+- iwr_lcl.u.data.flags = iwp_compat->flags;
+-
+- ret = dev->netdev_ops->ndo_do_ioctl(dev, (void *) &iwr_lcl, cmd);
+-
+- iwp_compat->pointer = ptr_to_compat(iwr_lcl.u.data.pointer);
+- iwp_compat->length = iwr_lcl.u.data.length;
+- iwp_compat->flags = iwr_lcl.u.data.flags;
+-
+- return ret;
+- } else
+-#endif
+- return dev->netdev_ops->ndo_do_ioctl(dev, ifr, cmd);
+- }
++ if (dev->netdev_ops->ndo_do_ioctl)
++ return dev->netdev_ops->ndo_do_ioctl(dev, ifr, cmd);
+ return -EOPNOTSUPP;
+ }
+
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