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SubjectRe: Linux 4.4.22
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, &current->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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