Re: Linux 4.14.204

Greg Kroah-Hartman
2020-11-05T10:54:09Z

diff --git a/Documentation/media/uapi/v4l/colorspaces-defs.rst b/Documentation/media/uapi/v4l/colorspaces-defs.rst
index f24615544792..16e46bec8093 100644
--- a/Documentation/media/uapi/v4l/colorspaces-defs.rst
+++ b/Documentation/media/uapi/v4l/colorspaces-defs.rst
@@ -29,8 +29,7 @@ whole range, 0-255, dividing the angular value by 1.41. The enum
:c:type:`v4l2_hsv_encoding` specifies which encoding is used.

.. note:: The default R'G'B' quantization is full range for all
- colorspaces except for BT.2020 which uses limited range R'G'B'
- quantization.
+ colorspaces. HSV formats are always full range.

.. tabularcolumns:: |p{6.0cm}|p{11.5cm}|

@@ -162,8 +161,8 @@ whole range, 0-255, dividing the angular value by 1.41. The enum
- Details
* - ``V4L2_QUANTIZATION_DEFAULT``
- Use the default quantization encoding as defined by the
- colorspace. This is always full range for R'G'B' (except for the
- BT.2020 colorspace) and HSV. It is usually limited range for Y'CbCr.
+ colorspace. This is always full range for R'G'B' and HSV.
+ It is usually limited range for Y'CbCr.
* - ``V4L2_QUANTIZATION_FULL_RANGE``
- Use the full range quantization encoding. I.e. the range [0…1] is
mapped to [0…255] (with possible clipping to [1…254] to avoid the
@@ -173,4 +172,4 @@ whole range, 0-255, dividing the angular value by 1.41. The enum
* - ``V4L2_QUANTIZATION_LIM_RANGE``
- Use the limited range quantization encoding. I.e. the range [0…1]
is mapped to [16…235]. Cb and Cr are mapped from [-0.5…0.5] to
- [16…240].
+ [16…240]. Limited Range cannot be used with HSV.
diff --git a/Documentation/media/uapi/v4l/colorspaces-details.rst b/Documentation/media/uapi/v4l/colorspaces-details.rst
index 09fabf4cd412..ca7176cae8dd 100644
--- a/Documentation/media/uapi/v4l/colorspaces-details.rst
+++ b/Documentation/media/uapi/v4l/colorspaces-details.rst
@@ -370,9 +370,8 @@ Colorspace BT.2020 (V4L2_COLORSPACE_BT2020)
The :ref:`itu2020` standard defines the colorspace used by Ultra-high
definition television (UHDTV). The default transfer function is
``V4L2_XFER_FUNC_709``. The default Y'CbCr encoding is
-``V4L2_YCBCR_ENC_BT2020``. The default R'G'B' quantization is limited
-range (!), and so is the default Y'CbCr quantization. The chromaticities
-of the primary colors and the white reference are:
+``V4L2_YCBCR_ENC_BT2020``. The default Y'CbCr quantization is limited range.
+The chromaticities of the primary colors and the white reference are:

diff --git a/Makefile b/Makefile
index ee52592c30da..9b0fd7096ab8 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
# SPDX-License-Identifier: GPL-2.0
VERSION = 4
PATCHLEVEL = 14
-SUBLEVEL = 203
+SUBLEVEL = 204
EXTRAVERSION =
NAME = Petit Gorille

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 7a8fbe9a077b..89f7d0c28240 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -602,7 +602,9 @@ config ARCH_S3C24XX
select HAVE_S3C_RTC if RTC_CLASS
select MULTI_IRQ_HANDLER
select NEED_MACH_IO_H
+ select S3C2410_WATCHDOG
select SAMSUNG_ATAGS
+ select WATCHDOG
help
Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443
and S3C2450 SoCs based systems, such as the Simtec Electronics BAST
diff --git a/arch/arm/boot/dts/mt7623n-bananapi-bpi-r2.dts b/arch/arm/boot/dts/mt7623n-bananapi-bpi-r2.dts
index e96c0ca97972..a50e3c884efa 100644
--- a/arch/arm/boot/dts/mt7623n-bananapi-bpi-r2.dts
+++ b/arch/arm/boot/dts/mt7623n-bananapi-bpi-r2.dts
@@ -183,6 +183,7 @@
fixed-link {
speed = <1000>;
full-duplex;
+ pause;
};
};
};
diff --git a/arch/arm/boot/dts/s5pv210.dtsi b/arch/arm/boot/dts/s5pv210.dtsi
index b290a5abb901..a215218237a6 100644
--- a/arch/arm/boot/dts/s5pv210.dtsi
+++ b/arch/arm/boot/dts/s5pv210.dtsi
@@ -101,19 +101,16 @@
};

clocks: clock-controller@e0100000 {
- compatible = "samsung,s5pv210-clock", "simple-bus";
+ compatible = "samsung,s5pv210-clock";
reg = <0xe0100000 0x10000>;
clock-names = "xxti", "xusbxti";
clocks = <&xxti>, <&xusbxti>;
#clock-cells = <1>;
- #address-cells = <1>;
- #size-cells = <1>;
- ranges;
+ };

- pmu_syscon: syscon@e0108000 {
- compatible = "samsung-s5pv210-pmu", "syscon";
- reg = <0xe0108000 0x8000>;
- };
+ pmu_syscon: syscon@e0108000 {
+ compatible = "samsung-s5pv210-pmu", "syscon";
+ reg = <0xe0108000 0x8000>;
};

pinctrl0: pinctrl@e0200000 {
@@ -129,35 +126,28 @@
};
};

- amba {
- #address-cells = <1>;
- #size-cells = <1>;
- compatible = "simple-bus";
- ranges;
-
- pdma0: dma@e0900000 {
- compatible = "arm,pl330", "arm,primecell";
- reg = <0xe0900000 0x1000>;
- interrupt-parent = <&vic0>;
- interrupts = <19>;
- clocks = <&clocks CLK_PDMA0>;
- clock-names = "apb_pclk";
- #dma-cells = <1>;
- #dma-channels = <8>;
- #dma-requests = <32>;
- };
+ pdma0: dma@e0900000 {
+ compatible = "arm,pl330", "arm,primecell";
+ reg = <0xe0900000 0x1000>;
+ interrupt-parent = <&vic0>;
+ interrupts = <19>;
+ clocks = <&clocks CLK_PDMA0>;
+ clock-names = "apb_pclk";
+ #dma-cells = <1>;
+ #dma-channels = <8>;
+ #dma-requests = <32>;
+ };

- pdma1: dma@e0a00000 {
- compatible = "arm,pl330", "arm,primecell";
- reg = <0xe0a00000 0x1000>;
- interrupt-parent = <&vic0>;
- interrupts = <20>;
- clocks = <&clocks CLK_PDMA1>;
- clock-names = "apb_pclk";
- #dma-cells = <1>;
- #dma-channels = <8>;
- #dma-requests = <32>;
- };
+ pdma1: dma@e0a00000 {
+ compatible = "arm,pl330", "arm,primecell";
+ reg = <0xe0a00000 0x1000>;
+ interrupt-parent = <&vic0>;
+ interrupts = <20>;
+ clocks = <&clocks CLK_PDMA1>;
+ clock-names = "apb_pclk";
+ #dma-cells = <1>;
+ #dma-channels = <8>;
+ #dma-requests = <32>;
};

spi0: spi@e1300000 {
@@ -230,43 +220,36 @@
status = "disabled";
};

- audio-subsystem {
- compatible = "samsung,s5pv210-audss", "simple-bus";
- #address-cells = <1>;
- #size-cells = <1>;
- ranges;
-
- clk_audss: clock-controller@eee10000 {
- compatible = "samsung,s5pv210-audss-clock";
- reg = <0xeee10000 0x1000>;
- clock-names = "hclk", "xxti",
- "fout_epll",
- "sclk_audio0";
- clocks = <&clocks DOUT_HCLKP>, <&xxti>,
- <&clocks FOUT_EPLL>,
- <&clocks SCLK_AUDIO0>;
- #clock-cells = <1>;
- };
+ clk_audss: clock-controller@eee10000 {
+ compatible = "samsung,s5pv210-audss-clock";
+ reg = <0xeee10000 0x1000>;
+ clock-names = "hclk", "xxti",
+ "fout_epll",
+ "sclk_audio0";
+ clocks = <&clocks DOUT_HCLKP>, <&xxti>,
+ <&clocks FOUT_EPLL>,
+ <&clocks SCLK_AUDIO0>;
+ #clock-cells = <1>;
+ };

- i2s0: i2s@eee30000 {
- compatible = "samsung,s5pv210-i2s";
- reg = <0xeee30000 0x1000>;
- interrupt-parent = <&vic2>;
- interrupts = <16>;
- dma-names = "rx", "tx", "tx-sec";
- dmas = <&pdma1 9>, <&pdma1 10>, <&pdma1 11>;
- clock-names = "iis",
- "i2s_opclk0",
- "i2s_opclk1";
- clocks = <&clk_audss CLK_I2S>,
- <&clk_audss CLK_I2S>,
- <&clk_audss CLK_DOUT_AUD_BUS>;
- samsung,idma-addr = <0xc0010000>;
- pinctrl-names = "default";
- pinctrl-0 = <&i2s0_bus>;
- #sound-dai-cells = <0>;
- status = "disabled";
- };
+ i2s0: i2s@eee30000 {
+ compatible = "samsung,s5pv210-i2s";
+ reg = <0xeee30000 0x1000>;
+ interrupt-parent = <&vic2>;
+ interrupts = <16>;
+ dma-names = "rx", "tx", "tx-sec";
+ dmas = <&pdma1 9>, <&pdma1 10>, <&pdma1 11>;
+ clock-names = "iis",
+ "i2s_opclk0",
+ "i2s_opclk1";
+ clocks = <&clk_audss CLK_I2S>,
+ <&clk_audss CLK_I2S>,
+ <&clk_audss CLK_DOUT_AUD_BUS>;
+ samsung,idma-addr = <0xc0010000>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2s0_bus>;
+ #sound-dai-cells = <0>;
+ status = "disabled";
};

i2s1: i2s@e2100000 {
diff --git a/arch/arm/kernel/hw_breakpoint.c b/arch/arm/kernel/hw_breakpoint.c
index a30f656f791f..e61697fb7efe 100644
--- a/arch/arm/kernel/hw_breakpoint.c
+++ b/arch/arm/kernel/hw_breakpoint.c
@@ -688,6 +688,40 @@ static void disable_single_step(struct perf_event *bp)
arch_install_hw_breakpoint(bp);
}

+/*
+ * Arm32 hardware does not always report a watchpoint hit address that matches
+ * one of the watchpoints set. It can also report an address "near" the
+ * watchpoint if a single instruction access both watched and unwatched
+ * addresses. There is no straight-forward way, short of disassembling the
+ * offending instruction, to map that address back to the watchpoint. This
+ * function computes the distance of the memory access from the watchpoint as a
+ * heuristic for the likelyhood that a given access triggered the watchpoint.
+ *
+ * See this same function in the arm64 platform code, which has the same
+ * problem.
+ *
+ * The function returns the distance of the address from the bytes watched by
+ * the watchpoint. In case of an exact match, it returns 0.
+ */
+static u32 get_distance_from_watchpoint(unsigned long addr, u32 val,
+ struct arch_hw_breakpoint_ctrl *ctrl)
+{
+ u32 wp_low, wp_high;
+ u32 lens, lene;
+
+ lens = __ffs(ctrl->len);
+ lene = __fls(ctrl->len);
+
+ wp_low = val + lens;
+ wp_high = val + lene;
+ if (addr < wp_low)
+ return wp_low - addr;
+ else if (addr > wp_high)
+ return addr - wp_high;
+ else
+ return 0;
+}
+
static int watchpoint_fault_on_uaccess(struct pt_regs *regs,
struct arch_hw_breakpoint *info)
{
@@ -697,23 +731,25 @@ static int watchpoint_fault_on_uaccess(struct pt_regs *regs,
static void watchpoint_handler(unsigned long addr, unsigned int fsr,
struct pt_regs *regs)
{
- int i, access;
- u32 val, ctrl_reg, alignment_mask;
+ int i, access, closest_match = 0;
+ u32 min_dist = -1, dist;
+ u32 val, ctrl_reg;
struct perf_event *wp, **slots;
struct arch_hw_breakpoint *info;
struct arch_hw_breakpoint_ctrl ctrl;

slots = this_cpu_ptr(wp_on_reg);

+ /*
+ * Find all watchpoints that match the reported address. If no exact
+ * match is found. Attribute the hit to the closest watchpoint.
+ */
+ rcu_read_lock();
for (i = 0; i < core_num_wrps; ++i) {
- rcu_read_lock();
-
wp = slots[i];
-
if (wp == NULL)
- goto unlock;
+ continue;

- info = counter_arch_bp(wp);
/*
* The DFAR is an unknown value on debug architectures prior
* to 7.1. Since we only allow a single watchpoint on these
@@ -722,33 +758,31 @@ static void watchpoint_handler(unsigned long addr, unsigned int fsr,
*/
if (debug_arch < ARM_DEBUG_ARCH_V7_1) {
BUG_ON(i > 0);
+ info = counter_arch_bp(wp);
info->trigger = wp->attr.bp_addr;
} else {
- if (info->ctrl.len == ARM_BREAKPOINT_LEN_8)
- alignment_mask = 0x7;
- else
- alignment_mask = 0x3;
-
- /* Check if the watchpoint value matches. */
- val = read_wb_reg(ARM_BASE_WVR + i);
- if (val != (addr & ~alignment_mask))
- goto unlock;
-
- /* Possible match, check the byte address select. */
- ctrl_reg = read_wb_reg(ARM_BASE_WCR + i);
- decode_ctrl_reg(ctrl_reg, &ctrl);
- if (!((1 << (addr & alignment_mask)) & ctrl.len))
- goto unlock;
-
/* Check that the access type matches. */
if (debug_exception_updates_fsr()) {
access = (fsr & ARM_FSR_ACCESS_MASK) ?
HW_BREAKPOINT_W : HW_BREAKPOINT_R;
if (!(access & hw_breakpoint_type(wp)))
- goto unlock;
+ continue;
}

+ val = read_wb_reg(ARM_BASE_WVR + i);
+ ctrl_reg = read_wb_reg(ARM_BASE_WCR + i);
+ decode_ctrl_reg(ctrl_reg, &ctrl);
+ dist = get_distance_from_watchpoint(addr, val, &ctrl);
+ if (dist < min_dist) {
+ min_dist = dist;
+ closest_match = i;
+ }
+ /* Is this an exact match? */
+ if (dist != 0)
+ continue;
+
/* We have a winner. */
+ info = counter_arch_bp(wp);
info->trigger = addr;
}

@@ -770,13 +804,23 @@ static void watchpoint_handler(unsigned long addr, unsigned int fsr,
* we can single-step over the watchpoint trigger.
*/
if (!is_default_overflow_handler(wp))
- goto unlock;
-
+ continue;
step:
enable_single_step(wp, instruction_pointer(regs));
-unlock:
- rcu_read_unlock();
}
+
+ if (min_dist > 0 && min_dist != -1) {
+ /* No exact match found. */
+ wp = slots[closest_match];
+ info = counter_arch_bp(wp);
+ info->trigger = addr;
+ pr_debug("watchpoint fired: address = 0x%x\n", info->trigger);
+ perf_bp_event(wp, regs);
+ if (is_default_overflow_handler(wp))
+ enable_single_step(wp, instruction_pointer(regs));
+ }
+
+ rcu_read_unlock();
}

static void watchpoint_single_step_handler(unsigned long pc)
diff --git a/arch/arm/plat-samsung/Kconfig b/arch/arm/plat-samsung/Kconfig
index 3265b8f86069..6ec01491735e 100644
--- a/arch/arm/plat-samsung/Kconfig
+++ b/arch/arm/plat-samsung/Kconfig
@@ -242,6 +242,7 @@ config SAMSUNG_PM_DEBUG
bool "Samsung PM Suspend debug"
depends on PM && DEBUG_KERNEL
depends on DEBUG_EXYNOS_UART || DEBUG_S3C24XX_UART || DEBUG_S3C2410_UART
+ depends on DEBUG_LL && MMU
help
Say Y here if you want verbose debugging from the PM Suspend and
Resume code. See <file:Documentation/arm/Samsung-S3C24XX/Suspend.txt>
diff --git a/arch/arm64/Kconfig.platforms b/arch/arm64/Kconfig.platforms
index 456d21542250..cdfd37c7fb67 100644
--- a/arch/arm64/Kconfig.platforms
+++ b/arch/arm64/Kconfig.platforms
@@ -46,6 +46,7 @@ config ARCH_BCM_IPROC
config ARCH_BERLIN
bool "Marvell Berlin SoC Family"
select DW_APB_ICTL
+ select DW_APB_TIMER_OF
select GPIOLIB
select PINCTRL
help
diff --git a/arch/arm64/Makefile b/arch/arm64/Makefile
index 8c4bc5a2c61f..5efb4e095069 100644
--- a/arch/arm64/Makefile
+++ b/arch/arm64/Makefile
@@ -10,7 +10,7 @@
#
# Copyright (C) 1995-2001 by Russell King

-LDFLAGS_vmlinux :=--no-undefined -X
+LDFLAGS_vmlinux :=--no-undefined -X -z norelro
CPPFLAGS_vmlinux.lds = -DTEXT_OFFSET=$(TEXT_OFFSET)
GZFLAGS :=-9

@@ -18,7 +18,7 @@ ifeq ($(CONFIG_RELOCATABLE), y)
# Pass --no-apply-dynamic-relocs to restore pre-binutils-2.27 behaviour
# for relative relocs, since this leads to better Image compression
# with the relocation offsets always being zero.
-LDFLAGS_vmlinux += -shared -Bsymbolic -z notext -z norelro \
+LDFLAGS_vmlinux += -shared -Bsymbolic -z notext \
$(call ld-option, --no-apply-dynamic-relocs)
endif

diff --git a/arch/arm64/boot/dts/renesas/ulcb.dtsi b/arch/arm64/boot/dts/renesas/ulcb.dtsi
index e95d99265af9..38f846530fcd 100644
--- a/arch/arm64/boot/dts/renesas/ulcb.dtsi
+++ b/arch/arm64/boot/dts/renesas/ulcb.dtsi
@@ -397,6 +397,7 @@
bus-width = <8>;
mmc-hs200-1_8v;
non-removable;
+ full-pwr-cycle-in-suspend;
status = "okay";
};

diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index 87615facf959..02d34caa7bff 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -185,6 +185,7 @@ enum vcpu_sysreg {
#define cp14_DBGWCR0 (DBGWCR0_EL1 * 2)
#define cp14_DBGWVR0 (DBGWVR0_EL1 * 2)
#define cp14_DBGDCCINT (MDCCINT_EL1 * 2)
+#define cp14_DBGVCR (DBGVCR32_EL2 * 2)

#define NR_COPRO_REGS (NR_SYS_REGS * 2)

diff --git a/arch/arm64/include/asm/numa.h b/arch/arm64/include/asm/numa.h
index 01bc46d5b43a..9bde63602767 100644
--- a/arch/arm64/include/asm/numa.h
+++ b/arch/arm64/include/asm/numa.h
@@ -25,6 +25,9 @@ const struct cpumask *cpumask_of_node(int node);
/* Returns a pointer to the cpumask of CPUs on Node 'node'. */
static inline const struct cpumask *cpumask_of_node(int node)
{
+ if (node == NUMA_NO_NODE)
+ return cpu_all_mask;
+
return node_to_cpumask_map[node];
}
#endif
diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c
index 32ae5c9daac4..1ee4d9216841 100644
--- a/arch/arm64/kvm/sys_regs.c
+++ b/arch/arm64/kvm/sys_regs.c
@@ -1178,9 +1178,9 @@ static const struct sys_reg_desc cp14_regs[] = {
{ Op1( 0), CRn( 0), CRm( 1), Op2( 0), trap_raz_wi },
DBG_BCR_BVR_WCR_WVR(1),
/* DBGDCCINT */
- { Op1( 0), CRn( 0), CRm( 2), Op2( 0), trap_debug32 },
+ { Op1( 0), CRn( 0), CRm( 2), Op2( 0), trap_debug32, NULL, cp14_DBGDCCINT },
/* DBGDSCRext */
- { Op1( 0), CRn( 0), CRm( 2), Op2( 2), trap_debug32 },
+ { Op1( 0), CRn( 0), CRm( 2), Op2( 2), trap_debug32, NULL, cp14_DBGDSCRext },
DBG_BCR_BVR_WCR_WVR(2),
/* DBGDTR[RT]Xint */
{ Op1( 0), CRn( 0), CRm( 3), Op2( 0), trap_raz_wi },
@@ -1195,7 +1195,7 @@ static const struct sys_reg_desc cp14_regs[] = {
{ Op1( 0), CRn( 0), CRm( 6), Op2( 2), trap_raz_wi },
DBG_BCR_BVR_WCR_WVR(6),
/* DBGVCR */
- { Op1( 0), CRn( 0), CRm( 7), Op2( 0), trap_debug32 },
+ { Op1( 0), CRn( 0), CRm( 7), Op2( 0), trap_debug32, NULL, cp14_DBGVCR },
DBG_BCR_BVR_WCR_WVR(7),
DBG_BCR_BVR_WCR_WVR(8),
DBG_BCR_BVR_WCR_WVR(9),
diff --git a/arch/arm64/mm/numa.c b/arch/arm64/mm/numa.c
index e9c843e0c172..6b42af182aa7 100644
--- a/arch/arm64/mm/numa.c
+++ b/arch/arm64/mm/numa.c
@@ -58,7 +58,11 @@ EXPORT_SYMBOL(node_to_cpumask_map);
*/
const struct cpumask *cpumask_of_node(int node)
{
- if (WARN_ON(node >= nr_node_ids))
+
+ if (node == NUMA_NO_NODE)
+ return cpu_all_mask;
+
+ if (WARN_ON(node < 0 || node >= nr_node_ids))
return cpu_none_mask;

if (WARN_ON(node_to_cpumask_map[node] == NULL))
diff --git a/arch/ia64/kernel/Makefile b/arch/ia64/kernel/Makefile
index 14ad79f394e5..0a4e32f94f6c 100644
--- a/arch/ia64/kernel/Makefile
+++ b/arch/ia64/kernel/Makefile
@@ -43,7 +43,7 @@ endif
obj-$(CONFIG_INTEL_IOMMU) += pci-dma.o
obj-$(CONFIG_SWIOTLB) += pci-swiotlb.o

-obj-$(CONFIG_BINFMT_ELF) += elfcore.o
+obj-$(CONFIG_ELF_CORE) += elfcore.o

# fp_emulate() expects f2-f5,f16-f31 to contain the user-level state.
CFLAGS_traps.o += -mfixed-range=f2-f5,f16-f31
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 679e1e3c1695..52138ab45e57 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -154,6 +154,7 @@ config PPC
select ARCH_USE_BUILTIN_BSWAP
select ARCH_USE_CMPXCHG_LOCKREF if PPC64
select ARCH_WANT_IPC_PARSE_VERSION
+ select ARCH_WANT_IRQS_OFF_ACTIVATE_MM
select ARCH_WEAK_RELEASE_ACQUIRE
select BINFMT_ELF
select BUILDTIME_EXTABLE_SORT
@@ -1026,6 +1027,19 @@ config FSL_RIO

source "drivers/rapidio/Kconfig"

+config PPC_RTAS_FILTER
+ bool "Enable filtering of RTAS syscalls"
+ default y
+ depends on PPC_RTAS
+ help
+ The RTAS syscall API has security issues that could be used to
+ compromise system integrity. This option enforces restrictions on the
+ RTAS calls and arguments passed by userspace programs to mitigate
+ these issues.
+
+ Say Y unless you know what you are doing and the filter is causing
+ problems for you.
+
endmenu

config NONSTATIC_KERNEL
diff --git a/arch/powerpc/include/asm/mmu_context.h b/arch/powerpc/include/asm/mmu_context.h
index 6f67ff5a5267..5f9ad4f4b9c0 100644
--- a/arch/powerpc/include/asm/mmu_context.h
+++ b/arch/powerpc/include/asm/mmu_context.h
@@ -101,7 +101,7 @@ static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
*/
static inline void activate_mm(struct mm_struct *prev, struct mm_struct *next)
{
- switch_mm(prev, next, current);
+ switch_mm_irqs_off(prev, next, current);
}

/* We don't currently use enter_lazy_tlb() for anything */
diff --git a/arch/powerpc/kernel/rtas.c b/arch/powerpc/kernel/rtas.c
index a01f83ba739e..96e5a3bd23e8 100644
--- a/arch/powerpc/kernel/rtas.c
+++ b/arch/powerpc/kernel/rtas.c
@@ -1056,6 +1056,147 @@ struct pseries_errorlog *get_pseries_errorlog(struct rtas_error_log *log,
return NULL;
}

+#ifdef CONFIG_PPC_RTAS_FILTER
+
+/*
+ * The sys_rtas syscall, as originally designed, allows root to pass
+ * arbitrary physical addresses to RTAS calls. A number of RTAS calls
+ * can be abused to write to arbitrary memory and do other things that
+ * are potentially harmful to system integrity, and thus should only
+ * be used inside the kernel and not exposed to userspace.
+ *
+ * All known legitimate users of the sys_rtas syscall will only ever
+ * pass addresses that fall within the RMO buffer, and use a known
+ * subset of RTAS calls.
+ *
+ * Accordingly, we filter RTAS requests to check that the call is
+ * permitted, and that provided pointers fall within the RMO buffer.
+ * The rtas_filters list contains an entry for each permitted call,
+ * with the indexes of the parameters which are expected to contain
+ * addresses and sizes of buffers allocated inside the RMO buffer.
+ */
+struct rtas_filter {
+ const char *name;
+ int token;
+ /* Indexes into the args buffer, -1 if not used */
+ int buf_idx1;
+ int size_idx1;
+ int buf_idx2;
+ int size_idx2;
+
+ int fixed_size;
+};
+
+static struct rtas_filter rtas_filters[] __ro_after_init = {
+ { "ibm,activate-firmware", -1, -1, -1, -1, -1 },
+ { "ibm,configure-connector", -1, 0, -1, 1, -1, 4096 }, /* Special cased */
+ { "display-character", -1, -1, -1, -1, -1 },
+ { "ibm,display-message", -1, 0, -1, -1, -1 },
+ { "ibm,errinjct", -1, 2, -1, -1, -1, 1024 },
+ { "ibm,close-errinjct", -1, -1, -1, -1, -1 },
+ { "ibm,open-errinct", -1, -1, -1, -1, -1 },
+ { "ibm,get-config-addr-info2", -1, -1, -1, -1, -1 },
+ { "ibm,get-dynamic-sensor-state", -1, 1, -1, -1, -1 },
+ { "ibm,get-indices", -1, 2, 3, -1, -1 },
+ { "get-power-level", -1, -1, -1, -1, -1 },
+ { "get-sensor-state", -1, -1, -1, -1, -1 },
+ { "ibm,get-system-parameter", -1, 1, 2, -1, -1 },
+ { "get-time-of-day", -1, -1, -1, -1, -1 },
+ { "ibm,get-vpd", -1, 0, -1, 1, 2 },
+ { "ibm,lpar-perftools", -1, 2, 3, -1, -1 },
+ { "ibm,platform-dump", -1, 4, 5, -1, -1 },
+ { "ibm,read-slot-reset-state", -1, -1, -1, -1, -1 },
+ { "ibm,scan-log-dump", -1, 0, 1, -1, -1 },
+ { "ibm,set-dynamic-indicator", -1, 2, -1, -1, -1 },
+ { "ibm,set-eeh-option", -1, -1, -1, -1, -1 },
+ { "set-indicator", -1, -1, -1, -1, -1 },
+ { "set-power-level", -1, -1, -1, -1, -1 },
+ { "set-time-for-power-on", -1, -1, -1, -1, -1 },
+ { "ibm,set-system-parameter", -1, 1, -1, -1, -1 },
+ { "set-time-of-day", -1, -1, -1, -1, -1 },
+ { "ibm,suspend-me", -1, -1, -1, -1, -1 },
+ { "ibm,update-nodes", -1, 0, -1, -1, -1, 4096 },
+ { "ibm,update-properties", -1, 0, -1, -1, -1, 4096 },
+ { "ibm,physical-attestation", -1, 0, 1, -1, -1 },
+};
+
+static bool in_rmo_buf(u32 base, u32 end)
+{
+ return base >= rtas_rmo_buf &&
+ base < (rtas_rmo_buf + RTAS_RMOBUF_MAX) &&
+ base <= end &&
+ end >= rtas_rmo_buf &&
+ end < (rtas_rmo_buf + RTAS_RMOBUF_MAX);
+}
+
+static bool block_rtas_call(int token, int nargs,
+ struct rtas_args *args)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(rtas_filters); i++) {
+ struct rtas_filter *f = &rtas_filters[i];
+ u32 base, size, end;
+
+ if (token != f->token)
+ continue;
+
+ if (f->buf_idx1 != -1) {
+ base = be32_to_cpu(args->args[f->buf_idx1]);
+ if (f->size_idx1 != -1)
+ size = be32_to_cpu(args->args[f->size_idx1]);
+ else if (f->fixed_size)
+ size = f->fixed_size;
+ else
+ size = 1;
+
+ end = base + size - 1;
+ if (!in_rmo_buf(base, end))
+ goto err;
+ }
+
+ if (f->buf_idx2 != -1) {
+ base = be32_to_cpu(args->args[f->buf_idx2]);
+ if (f->size_idx2 != -1)
+ size = be32_to_cpu(args->args[f->size_idx2]);
+ else if (f->fixed_size)
+ size = f->fixed_size;
+ else
+ size = 1;
+ end = base + size - 1;
+
+ /*
+ * Special case for ibm,configure-connector where the
+ * address can be 0
+ */
+ if (!strcmp(f->name, "ibm,configure-connector") &&
+ base == 0)
+ return false;
+
+ if (!in_rmo_buf(base, end))
+ goto err;
+ }
+
+ return false;
+ }
+
+err:
+ pr_err_ratelimited("sys_rtas: RTAS call blocked - exploit attempt?\n");
+ pr_err_ratelimited("sys_rtas: token=0x%x, nargs=%d (called by %s)\n",
+ token, nargs, current->comm);
+ return true;
+}
+
+#else
+
+static bool block_rtas_call(int token, int nargs,
+ struct rtas_args *args)
+{
+ return false;
+}
+
+#endif /* CONFIG_PPC_RTAS_FILTER */
+
/* We assume to be passed big endian arguments */
asmlinkage int ppc_rtas(struct rtas_args __user *uargs)
{
@@ -1093,6 +1234,9 @@ asmlinkage int ppc_rtas(struct rtas_args __user *uargs)
args.rets = &args.args[nargs];
memset(args.rets, 0, nret * sizeof(rtas_arg_t));

+ if (block_rtas_call(token, nargs, &args))
+ return -EINVAL;
+
/* Need to handle ibm,suspend_me call specially */
if (token == ibm_suspend_me_token) {

@@ -1154,6 +1298,9 @@ void __init rtas_initialize(void)
unsigned long rtas_region = RTAS_INSTANTIATE_MAX;
u32 base, size, entry;
int no_base, no_size, no_entry;
+#ifdef CONFIG_PPC_RTAS_FILTER
+ int i;
+#endif

/* Get RTAS dev node and fill up our "rtas" structure with infos
* about it.
@@ -1189,6 +1336,12 @@ void __init rtas_initialize(void)
#ifdef CONFIG_RTAS_ERROR_LOGGING
rtas_last_error_token = rtas_token("rtas-last-error");
#endif
+
+#ifdef CONFIG_PPC_RTAS_FILTER
+ for (i = 0; i < ARRAY_SIZE(rtas_filters); i++) {
+ rtas_filters[i].token = rtas_token(rtas_filters[i].name);
+ }
+#endif
}

int __init early_init_dt_scan_rtas(unsigned long node,
diff --git a/arch/powerpc/kernel/sysfs.c b/arch/powerpc/kernel/sysfs.c
index 4437c70c7c2b..952fbc2d4abc 100644
--- a/arch/powerpc/kernel/sysfs.c
+++ b/arch/powerpc/kernel/sysfs.c
@@ -28,29 +28,27 @@

static DEFINE_PER_CPU(struct cpu, cpu_devices);

-/*
- * SMT snooze delay stuff, 64-bit only for now
- */
-
#ifdef CONFIG_PPC64

-/* Time in microseconds we delay before sleeping in the idle loop */
-static DEFINE_PER_CPU(long, smt_snooze_delay) = { 100 };
+/*
+ * Snooze delay has not been hooked up since 3fa8cad82b94 ("powerpc/pseries/cpuidle:
+ * smt-snooze-delay cleanup.") and has been broken even longer. As was foretold in
+ * 2014:
+ *
+ * "ppc64_util currently utilises it. Once we fix ppc64_util, propose to clean
+ * up the kernel code."
+ *
+ * powerpc-utils stopped using it as of 1.3.8. At some point in the future this
+ * code should be removed.
+ */

static ssize_t store_smt_snooze_delay(struct device *dev,
struct device_attribute *attr,
const char *buf,
size_t count)
{
- struct cpu *cpu = container_of(dev, struct cpu, dev);
- ssize_t ret;
- long snooze;
-
- ret = sscanf(buf, "%ld", &snooze);
- if (ret != 1)
- return -EINVAL;
-
- per_cpu(smt_snooze_delay, cpu->dev.id) = snooze;
+ pr_warn_once("%s (%d) stored to unsupported smt_snooze_delay, which has no effect.\n",
+ current->comm, current->pid);
return count;
}

@@ -58,9 +56,9 @@ static ssize_t show_smt_snooze_delay(struct device *dev,
struct device_attribute *attr,
char *buf)
{
- struct cpu *cpu = container_of(dev, struct cpu, dev);
-
- return sprintf(buf, "%ld\n", per_cpu(smt_snooze_delay, cpu->dev.id));
+ pr_warn_once("%s (%d) read from unsupported smt_snooze_delay\n",
+ current->comm, current->pid);
+ return sprintf(buf, "100\n");
}

static DEVICE_ATTR(smt_snooze_delay, 0644, show_smt_snooze_delay,
@@ -68,16 +66,10 @@ static DEVICE_ATTR(smt_snooze_delay, 0644, show_smt_snooze_delay,

static int __init setup_smt_snooze_delay(char *str)
{
- unsigned int cpu;
- long snooze;
-
if (!cpu_has_feature(CPU_FTR_SMT))
return 1;

- snooze = simple_strtol(str, NULL, 10);
- for_each_possible_cpu(cpu)
- per_cpu(smt_snooze_delay, cpu) = snooze;
-
+ pr_warn("smt-snooze-delay command line option has no effect\n");
return 1;
}
__setup("smt-snooze-delay=", setup_smt_snooze_delay);
diff --git a/arch/powerpc/platforms/powernv/opal-elog.c b/arch/powerpc/platforms/powernv/opal-elog.c
index ecd6d9177d13..4113b19059d8 100644
--- a/arch/powerpc/platforms/powernv/opal-elog.c
+++ b/arch/powerpc/platforms/powernv/opal-elog.c
@@ -183,14 +183,14 @@ static ssize_t raw_attr_read(struct file *filep, struct kobject *kobj,
return count;
}

-static struct elog_obj *create_elog_obj(uint64_t id, size_t size, uint64_t type)
+static void create_elog_obj(uint64_t id, size_t size, uint64_t type)
{
struct elog_obj *elog;
int rc;

elog = kzalloc(sizeof(*elog), GFP_KERNEL);
if (!elog)
- return NULL;
+ return;

elog->kobj.kset = elog_kset;

@@ -223,18 +223,37 @@ static struct elog_obj *create_elog_obj(uint64_t id, size_t size, uint64_t type)
rc = kobject_add(&elog->kobj, NULL, "0x%llx", id);
if (rc) {
kobject_put(&elog->kobj);
- return NULL;
+ return;
}

+ /*
+ * As soon as the sysfs file for this elog is created/activated there is
+ * a chance the opal_errd daemon (or any userspace) might read and
+ * acknowledge the elog before kobject_uevent() is called. If that
+ * happens then there is a potential race between
+ * elog_ack_store->kobject_put() and kobject_uevent() which leads to a
+ * use-after-free of a kernfs object resulting in a kernel crash.
+ *
+ * To avoid that, we need to take a reference on behalf of the bin file,
+ * so that our reference remains valid while we call kobject_uevent().
+ * We then drop our reference before exiting the function, leaving the
+ * bin file to drop the last reference (if it hasn't already).
+ */
+
+ /* Take a reference for the bin file */
+ kobject_get(&elog->kobj);
rc = sysfs_create_bin_file(&elog->kobj, &elog->raw_attr);
- if (rc) {
+ if (rc == 0) {
+ kobject_uevent(&elog->kobj, KOBJ_ADD);
+ } else {
+ /* Drop the reference taken for the bin file */
kobject_put(&elog->kobj);
- return NULL;
}

- kobject_uevent(&elog->kobj, KOBJ_ADD);
+ /* Drop our reference */
+ kobject_put(&elog->kobj);

- return elog;
+ return;
}

static irqreturn_t elog_event(int irq, void *data)
diff --git a/arch/powerpc/platforms/powernv/smp.c b/arch/powerpc/platforms/powernv/smp.c
index c17f81e433f7..11d8fde770c3 100644
--- a/arch/powerpc/platforms/powernv/smp.c
+++ b/arch/powerpc/platforms/powernv/smp.c
@@ -44,7 +44,7 @@
#include <asm/udbg.h>
#define DBG(fmt...) udbg_printf(fmt)
#else
-#define DBG(fmt...)
+#define DBG(fmt...) do { } while (0)
#endif

static void pnv_smp_setup_cpu(int cpu)
diff --git a/arch/s390/kernel/time.c b/arch/s390/kernel/time.c
index 5cbd52169348..2269db865afa 100644
--- a/arch/s390/kernel/time.c
+++ b/arch/s390/kernel/time.c
@@ -347,8 +347,9 @@ static DEFINE_PER_CPU(atomic_t, clock_sync_word);
static DEFINE_MUTEX(clock_sync_mutex);
static unsigned long clock_sync_flags;

-#define CLOCK_SYNC_HAS_STP 0
-#define CLOCK_SYNC_STP 1
+#define CLOCK_SYNC_HAS_STP 0
+#define CLOCK_SYNC_STP 1
+#define CLOCK_SYNC_STPINFO_VALID 2

/*
* The get_clock function for the physical clock. It will get the current
@@ -585,6 +586,22 @@ void stp_queue_work(void)
queue_work(time_sync_wq, &stp_work);
}

+static int __store_stpinfo(void)
+{
+ int rc = chsc_sstpi(stp_page, &stp_info, sizeof(struct stp_sstpi));
+
+ if (rc)
+ clear_bit(CLOCK_SYNC_STPINFO_VALID, &clock_sync_flags);
+ else
+ set_bit(CLOCK_SYNC_STPINFO_VALID, &clock_sync_flags);
+ return rc;
+}
+
+static int stpinfo_valid(void)
+{
+ return stp_online && test_bit(CLOCK_SYNC_STPINFO_VALID, &clock_sync_flags);
+}
+
static int stp_sync_clock(void *data)
{
struct clock_sync_data *sync = data;
@@ -606,8 +623,7 @@ static int stp_sync_clock(void *data)
if (rc == 0) {
sync->clock_delta = clock_delta;
clock_sync_global(clock_delta);
- rc = chsc_sstpi(stp_page, &stp_info,
- sizeof(struct stp_sstpi));
+ rc = __store_stpinfo();
if (rc == 0 && stp_info.tmd != 2)
rc = -EAGAIN;
}
@@ -652,7 +668,7 @@ static void stp_work_fn(struct work_struct *work)
if (rc)
goto out_unlock;

- rc = chsc_sstpi(stp_page, &stp_info, sizeof(struct stp_sstpi));
+ rc = __store_stpinfo();
if (rc || stp_info.c == 0)
goto out_unlock;

@@ -689,10 +705,14 @@ static ssize_t stp_ctn_id_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
- if (!stp_online)
- return -ENODATA;
- return sprintf(buf, "%016llx\n",
- *(unsigned long long *) stp_info.ctnid);
+ ssize_t ret = -ENODATA;
+
+ mutex_lock(&stp_work_mutex);
+ if (stpinfo_valid())
+ ret = sprintf(buf, "%016llx\n",
+ *(unsigned long long *) stp_info.ctnid);
+ mutex_unlock(&stp_work_mutex);
+ return ret;
}

static DEVICE_ATTR(ctn_id, 0400, stp_ctn_id_show, NULL);
@@ -701,9 +721,13 @@ static ssize_t stp_ctn_type_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
- if (!stp_online)
- return -ENODATA;
- return sprintf(buf, "%i\n", stp_info.ctn);
+ ssize_t ret = -ENODATA;
+
+ mutex_lock(&stp_work_mutex);
+ if (stpinfo_valid())
+ ret = sprintf(buf, "%i\n", stp_info.ctn);
+ mutex_unlock(&stp_work_mutex);
+ return ret;
}

static DEVICE_ATTR(ctn_type, 0400, stp_ctn_type_show, NULL);
@@ -712,9 +736,13 @@ static ssize_t stp_dst_offset_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
- if (!stp_online || !(stp_info.vbits & 0x2000))
- return -ENODATA;
- return sprintf(buf, "%i\n", (int)(s16) stp_info.dsto);
+ ssize_t ret = -ENODATA;
+
+ mutex_lock(&stp_work_mutex);
+ if (stpinfo_valid() && (stp_info.vbits & 0x2000))
+ ret = sprintf(buf, "%i\n", (int)(s16) stp_info.dsto);
+ mutex_unlock(&stp_work_mutex);
+ return ret;
}

static DEVICE_ATTR(dst_offset, 0400, stp_dst_offset_show, NULL);
@@ -723,9 +751,13 @@ static ssize_t stp_leap_seconds_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
- if (!stp_online || !(stp_info.vbits & 0x8000))
- return -ENODATA;
- return sprintf(buf, "%i\n", (int)(s16) stp_info.leaps);
+ ssize_t ret = -ENODATA;
+
+ mutex_lock(&stp_work_mutex);
+ if (stpinfo_valid() && (stp_info.vbits & 0x8000))
+ ret = sprintf(buf, "%i\n", (int)(s16) stp_info.leaps);
+ mutex_unlock(&stp_work_mutex);
+ return ret;
}

static DEVICE_ATTR(leap_seconds, 0400, stp_leap_seconds_show, NULL);
@@ -734,9 +766,13 @@ static ssize_t stp_stratum_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
- if (!stp_online)
- return -ENODATA;
- return sprintf(buf, "%i\n", (int)(s16) stp_info.stratum);
+ ssize_t ret = -ENODATA;
+
+ mutex_lock(&stp_work_mutex);
+ if (stpinfo_valid())
+ ret = sprintf(buf, "%i\n", (int)(s16) stp_info.stratum);
+ mutex_unlock(&stp_work_mutex);
+ return ret;
}

static DEVICE_ATTR(stratum, 0400, stp_stratum_show, NULL);
@@ -745,9 +781,13 @@ static ssize_t stp_time_offset_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
- if (!stp_online || !(stp_info.vbits & 0x0800))
- return -ENODATA;
- return sprintf(buf, "%i\n", (int) stp_info.tto);
+ ssize_t ret = -ENODATA;
+
+ mutex_lock(&stp_work_mutex);
+ if (stpinfo_valid() && (stp_info.vbits & 0x0800))
+ ret = sprintf(buf, "%i\n", (int) stp_info.tto);
+ mutex_unlock(&stp_work_mutex);
+ return ret;
}

static DEVICE_ATTR(time_offset, 0400, stp_time_offset_show, NULL);
@@ -756,9 +796,13 @@ static ssize_t stp_time_zone_offset_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
- if (!stp_online || !(stp_info.vbits & 0x4000))
- return -ENODATA;
- return sprintf(buf, "%i\n", (int)(s16) stp_info.tzo);
+ ssize_t ret = -ENODATA;
+
+ mutex_lock(&stp_work_mutex);
+ if (stpinfo_valid() && (stp_info.vbits & 0x4000))
+ ret = sprintf(buf, "%i\n", (int)(s16) stp_info.tzo);
+ mutex_unlock(&stp_work_mutex);
+ return ret;
}

static DEVICE_ATTR(time_zone_offset, 0400,
@@ -768,9 +812,13 @@ static ssize_t stp_timing_mode_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
- if (!stp_online)
- return -ENODATA;
- return sprintf(buf, "%i\n", stp_info.tmd);
+ ssize_t ret = -ENODATA;
+
+ mutex_lock(&stp_work_mutex);
+ if (stpinfo_valid())
+ ret = sprintf(buf, "%i\n", stp_info.tmd);
+ mutex_unlock(&stp_work_mutex);
+ return ret;
}

static DEVICE_ATTR(timing_mode, 0400, stp_timing_mode_show, NULL);
@@ -779,9 +827,13 @@ static ssize_t stp_timing_state_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
- if (!stp_online)
- return -ENODATA;
- return sprintf(buf, "%i\n", stp_info.tst);
+ ssize_t ret = -ENODATA;
+
+ mutex_lock(&stp_work_mutex);
+ if (stpinfo_valid())
+ ret = sprintf(buf, "%i\n", stp_info.tst);
+ mutex_unlock(&stp_work_mutex);
+ return ret;
}

static DEVICE_ATTR(timing_state, 0400, stp_timing_state_show, NULL);
diff --git a/arch/sparc/kernel/smp_64.c b/arch/sparc/kernel/smp_64.c
index c50182cd2f64..98825058e1df 100644
--- a/arch/sparc/kernel/smp_64.c
+++ b/arch/sparc/kernel/smp_64.c
@@ -1039,38 +1039,9 @@ void smp_fetch_global_pmu(void)
* are flush_tlb_*() routines, and these run after flush_cache_*()
* which performs the flushw.
*
- * The SMP TLB coherency scheme we use works as follows:
- *
- * 1) mm->cpu_vm_mask is a bit mask of which cpus an address
- * space has (potentially) executed on, this is the heuristic
- * we use to avoid doing cross calls.
- *
- * Also, for flushing from kswapd and also for clones, we
- * use cpu_vm_mask as the list of cpus to make run the TLB.
- *
- * 2) TLB context numbers are shared globally across all processors
- * in the system, this allows us to play several games to avoid
- * cross calls.
- *
- * One invariant is that when a cpu switches to a process, and
- * that processes tsk->active_mm->cpu_vm_mask does not have the
- * current cpu's bit set, that tlb context is flushed locally.
- *
- * If the address space is non-shared (ie. mm->count == 1) we avoid
- * cross calls when we want to flush the currently running process's
- * tlb state. This is done by clearing all cpu bits except the current
- * processor's in current->mm->cpu_vm_mask and performing the
- * flush locally only. This will force any subsequent cpus which run
- * this task to flush the context from the local tlb if the process
- * migrates to another cpu (again).
- *
- * 3) For shared address spaces (threads) and swapping we bite the
- * bullet for most cases and perform the cross call (but only to
- * the cpus listed in cpu_vm_mask).
- *
- * The performance gain from "optimizing" away the cross call for threads is
- * questionable (in theory the big win for threads is the massive sharing of
- * address space state across processors).
+ * mm->cpu_vm_mask is a bit mask of which cpus an address
+ * space has (potentially) executed on, this is the heuristic
+ * we use to limit cross calls.
*/

/* This currently is only used by the hugetlb arch pre-fault
@@ -1080,18 +1051,13 @@ void smp_fetch_global_pmu(void)
void smp_flush_tlb_mm(struct mm_struct *mm)
{
u32 ctx = CTX_HWBITS(mm->context);
- int cpu = get_cpu();

- if (atomic_read(&mm->mm_users) == 1) {
- cpumask_copy(mm_cpumask(mm), cpumask_of(cpu));
- goto local_flush_and_out;
- }
+ get_cpu();

smp_cross_call_masked(&xcall_flush_tlb_mm,
ctx, 0, 0,
mm_cpumask(mm));

-local_flush_and_out:
__flush_tlb_mm(ctx, SECONDARY_CONTEXT);

put_cpu();
@@ -1114,17 +1080,15 @@ void smp_flush_tlb_pending(struct mm_struct *mm, unsigned long nr, unsigned long
{
u32 ctx = CTX_HWBITS(mm->context);
struct tlb_pending_info info;
- int cpu = get_cpu();
+
+ get_cpu();

info.ctx = ctx;
info.nr = nr;
info.vaddrs = vaddrs;

- if (mm == current->mm && atomic_read(&mm->mm_users) == 1)
- cpumask_copy(mm_cpumask(mm), cpumask_of(cpu));
- else
- smp_call_function_many(mm_cpumask(mm), tlb_pending_func,
- &info, 1);
+ smp_call_function_many(mm_cpumask(mm), tlb_pending_func,
+ &info, 1);

__flush_tlb_pending(ctx, nr, vaddrs);

@@ -1134,14 +1098,13 @@ void smp_flush_tlb_pending(struct mm_struct *mm, unsigned long nr, unsigned long
void smp_flush_tlb_page(struct mm_struct *mm, unsigned long vaddr)
{
unsigned long context = CTX_HWBITS(mm->context);
- int cpu = get_cpu();

- if (mm == current->mm && atomic_read(&mm->mm_users) == 1)
- cpumask_copy(mm_cpumask(mm), cpumask_of(cpu));
- else
- smp_cross_call_masked(&xcall_flush_tlb_page,
- context, vaddr, 0,
- mm_cpumask(mm));
+ get_cpu();
+
+ smp_cross_call_masked(&xcall_flush_tlb_page,
+ context, vaddr, 0,
+ mm_cpumask(mm));
+
__flush_tlb_page(context, vaddr);

put_cpu();
diff --git a/arch/um/kernel/sigio.c b/arch/um/kernel/sigio.c
index b5e0cbb34382..476ded92affa 100644
--- a/arch/um/kernel/sigio.c
+++ b/arch/um/kernel/sigio.c
@@ -36,14 +36,14 @@ int write_sigio_irq(int fd)
}

/* These are called from os-Linux/sigio.c to protect its pollfds arrays. */
-static DEFINE_SPINLOCK(sigio_spinlock);
+static DEFINE_MUTEX(sigio_mutex);

void sigio_lock(void)
{
- spin_lock(&sigio_spinlock);
+ mutex_lock(&sigio_mutex);
}

void sigio_unlock(void)
{
- spin_unlock(&sigio_spinlock);
+ mutex_unlock(&sigio_mutex);
}
diff --git a/arch/x86/events/amd/ibs.c b/arch/x86/events/amd/ibs.c
index f24e9adaa316..3fe68f7f9d5e 100644
--- a/arch/x86/events/amd/ibs.c
+++ b/arch/x86/events/amd/ibs.c
@@ -89,6 +89,7 @@ struct perf_ibs {
u64 max_period;
unsigned long offset_mask[1];
int offset_max;
+ unsigned int fetch_count_reset_broken : 1;
struct cpu_perf_ibs __percpu *pcpu;

struct attribute **format_attrs;
@@ -346,11 +347,15 @@ static u64 get_ibs_op_count(u64 config)
{
u64 count = 0;

+ /*
+ * If the internal 27-bit counter rolled over, the count is MaxCnt
+ * and the lower 7 bits of CurCnt are randomized.
+ * Otherwise CurCnt has the full 27-bit current counter value.
+ */
if (config & IBS_OP_VAL)
- count += (config & IBS_OP_MAX_CNT) << 4; /* cnt rolled over */
-
- if (ibs_caps & IBS_CAPS_RDWROPCNT)
- count += (config & IBS_OP_CUR_CNT) >> 32;
+ count = (config & IBS_OP_MAX_CNT) << 4;
+ else if (ibs_caps & IBS_CAPS_RDWROPCNT)
+ count = (config & IBS_OP_CUR_CNT) >> 32;

return count;
}
@@ -375,7 +380,12 @@ perf_ibs_event_update(struct perf_ibs *perf_ibs, struct perf_event *event,
static inline void perf_ibs_enable_event(struct perf_ibs *perf_ibs,
struct hw_perf_event *hwc, u64 config)
{
- wrmsrl(hwc->config_base, hwc->config | config | perf_ibs->enable_mask);
+ u64 tmp = hwc->config | config;
+
+ if (perf_ibs->fetch_count_reset_broken)
+ wrmsrl(hwc->config_base, tmp & ~perf_ibs->enable_mask);
+
+ wrmsrl(hwc->config_base, tmp | perf_ibs->enable_mask);
}

/*
@@ -637,18 +647,24 @@ static int perf_ibs_handle_irq(struct perf_ibs *perf_ibs, struct pt_regs *iregs)
perf_ibs->offset_max,
offset + 1);
} while (offset < offset_max);
+ /*
+ * Read IbsBrTarget, IbsOpData4, and IbsExtdCtl separately
+ * depending on their availability.
+ * Can't add to offset_max as they are staggered
+ */
if (event->attr.sample_type & PERF_SAMPLE_RAW) {
- /*
- * Read IbsBrTarget and IbsOpData4 separately
- * depending on their availability.
- * Can't add to offset_max as they are staggered
- */
- if (ibs_caps & IBS_CAPS_BRNTRGT) {
- rdmsrl(MSR_AMD64_IBSBRTARGET, *buf++);
- size++;
+ if (perf_ibs == &perf_ibs_op) {
+ if (ibs_caps & IBS_CAPS_BRNTRGT) {
+ rdmsrl(MSR_AMD64_IBSBRTARGET, *buf++);
+ size++;
+ }
+ if (ibs_caps & IBS_CAPS_OPDATA4) {
+ rdmsrl(MSR_AMD64_IBSOPDATA4, *buf++);
+ size++;
+ }
}
- if (ibs_caps & IBS_CAPS_OPDATA4) {
- rdmsrl(MSR_AMD64_IBSOPDATA4, *buf++);
+ if (perf_ibs == &perf_ibs_fetch && (ibs_caps & IBS_CAPS_FETCHCTLEXTD)) {
+ rdmsrl(MSR_AMD64_ICIBSEXTDCTL, *buf++);
size++;
}
}
@@ -744,6 +760,13 @@ static __init void perf_event_ibs_init(void)
{
struct attribute **attr = ibs_op_format_attrs;

+ /*
+ * Some chips fail to reset the fetch count when it is written; instead
+ * they need a 0-1 transition of IbsFetchEn.
+ */
+ if (boot_cpu_data.x86 >= 0x16 && boot_cpu_data.x86 <= 0x18)
+ perf_ibs_fetch.fetch_count_reset_broken = 1;
+
perf_ibs_pmu_init(&perf_ibs_fetch, "ibs_fetch");

if (ibs_caps & IBS_CAPS_OPCNT) {
diff --git a/arch/x86/include/asm/msr-index.h b/arch/x86/include/asm/msr-index.h
index 9dc445ac7f19..e8ffeebd24b6 100644
--- a/arch/x86/include/asm/msr-index.h
+++ b/arch/x86/include/asm/msr-index.h
@@ -377,6 +377,7 @@
#define MSR_AMD64_IBSOP_REG_MASK ((1UL<<MSR_AMD64_IBSOP_REG_COUNT)-1)
#define MSR_AMD64_IBSCTL 0xc001103a
#define MSR_AMD64_IBSBRTARGET 0xc001103b
+#define MSR_AMD64_ICIBSEXTDCTL 0xc001103c
#define MSR_AMD64_IBSOPDATA4 0xc001103d
#define MSR_AMD64_IBS_REG_COUNT_MAX 8 /* includes MSR_AMD64_IBSBRTARGET */

diff --git a/arch/x86/kernel/unwind_orc.c b/arch/x86/kernel/unwind_orc.c
index a5e2ce931f69..e64c5b78fbfd 100644
--- a/arch/x86/kernel/unwind_orc.c
+++ b/arch/x86/kernel/unwind_orc.c
@@ -255,19 +255,12 @@ EXPORT_SYMBOL_GPL(unwind_get_return_address);

unsigned long *unwind_get_return_address_ptr(struct unwind_state *state)
{
- struct task_struct *task = state->task;
-
if (unwind_done(state))
return NULL;

if (state->regs)
return &state->regs->ip;

- if (task != current && state->sp == task->thread.sp) {
- struct inactive_task_frame *frame = (void *)task->thread.sp;
- return &frame->ret_addr;
- }
-
if (state->sp)
return (unsigned long *)state->sp - 1;

@@ -550,7 +543,7 @@ void __unwind_start(struct unwind_state *state, struct task_struct *task,
} else {
struct inactive_task_frame *frame = (void *)task->thread.sp;

- state->sp = task->thread.sp;
+ state->sp = task->thread.sp + sizeof(*frame);
state->bp = READ_ONCE_NOCHECK(frame->bp);
state->ip = READ_ONCE_NOCHECK(frame->ret_addr);
state->signal = (void *)state->ip == ret_from_fork;
diff --git a/arch/x86/xen/enlighten_pv.c b/arch/x86/xen/enlighten_pv.c
index 1f8175bf2a5e..7d90a4645511 100644
--- a/arch/x86/xen/enlighten_pv.c
+++ b/arch/x86/xen/enlighten_pv.c
@@ -1404,6 +1404,15 @@ asmlinkage __visible void __init xen_start_kernel(void)
x86_init.mpparse.get_smp_config = x86_init_uint_noop;

xen_boot_params_init_edd();
+
+#ifdef CONFIG_ACPI
+ /*
+ * Disable selecting "Firmware First mode" for correctable
+ * memory errors, as this is the duty of the hypervisor to
+ * decide.
+ */
+ acpi_disable_cmcff = 1;
+#endif
}
#ifdef CONFIG_PCI
/* PCI BIOS service won't work from a PV guest. */
diff --git a/drivers/acpi/acpi_dbg.c b/drivers/acpi/acpi_dbg.c
index 3ec05aa1a903..ce248c33201b 100644
--- a/drivers/acpi/acpi_dbg.c
+++ b/drivers/acpi/acpi_dbg.c
@@ -757,6 +757,9 @@ int __init acpi_aml_init(void)
goto err_exit;
}

+ if (acpi_disabled)
+ return -ENODEV;
+
/* Initialize AML IO interface */
mutex_init(&acpi_aml_io.lock);
init_waitqueue_head(&acpi_aml_io.wait);
diff --git a/drivers/acpi/acpi_extlog.c b/drivers/acpi/acpi_extlog.c
index 560fdae8cc59..943b1dc2d0b3 100644
--- a/drivers/acpi/acpi_extlog.c
+++ b/drivers/acpi/acpi_extlog.c
@@ -224,9 +224,9 @@ static int __init extlog_init(void)
u64 cap;
int rc;

- rdmsrl(MSR_IA32_MCG_CAP, cap);
-
- if (!(cap & MCG_ELOG_P) || !extlog_get_l1addr())
+ if (rdmsrl_safe(MSR_IA32_MCG_CAP, &cap) ||
+ !(cap & MCG_ELOG_P) ||
+ !extlog_get_l1addr())
return -ENODEV;

if (edac_get_report_status() == EDAC_REPORTING_FORCE) {
diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c
index a7907b58562a..986712fe2a71 100644
--- a/drivers/acpi/numa.c
+++ b/drivers/acpi/numa.c
@@ -46,7 +46,7 @@ int acpi_numa __initdata;

int pxm_to_node(int pxm)
{
- if (pxm < 0)
+ if (pxm < 0 || pxm >= MAX_PXM_DOMAINS || numa_off)
return NUMA_NO_NODE;
return pxm_to_node_map[pxm];
}
diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c
index ab1da5e6e7e3..86ffb4af4afc 100644
--- a/drivers/acpi/video_detect.c
+++ b/drivers/acpi/video_detect.c
@@ -274,6 +274,15 @@ static const struct dmi_system_id video_detect_dmi_table[] = {
DMI_MATCH(DMI_PRODUCT_NAME, "530U4E/540U4E"),
},
},
+ /* https://bugs.launchpad.net/bugs/1894667 */
+ {
+ .callback = video_detect_force_video,
+ .ident = "HP 635 Notebook",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "HP 635 Notebook PC"),
+ },
+ },

/* Non win8 machines which need native backlight nevertheless */
{
diff --git a/drivers/ata/sata_rcar.c b/drivers/ata/sata_rcar.c
index a443c6943473..b52ea6349f74 100644
--- a/drivers/ata/sata_rcar.c
+++ b/drivers/ata/sata_rcar.c
@@ -122,7 +122,7 @@
/* Descriptor table word 0 bit (when DTA32M = 1) */
#define SATA_RCAR_DTEND BIT(0)

-#define SATA_RCAR_DMA_BOUNDARY 0x1FFFFFFEUL
+#define SATA_RCAR_DMA_BOUNDARY 0x1FFFFFFFUL

/* Gen2 Physical Layer Control Registers */
#define RCAR_GEN2_PHY_CTL1_REG 0x1704
diff --git a/drivers/base/core.c b/drivers/base/core.c
index 3c14f0c4ef87..05ecc0de2d59 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -3074,6 +3074,7 @@ static inline bool fwnode_is_primary(struct fwnode_handle *fwnode)
*/
void set_primary_fwnode(struct device *dev, struct fwnode_handle *fwnode)
{
+ struct device *parent = dev->parent;
struct fwnode_handle *fn = dev->fwnode;

if (fwnode) {
@@ -3088,7 +3089,8 @@ void set_primary_fwnode(struct device *dev, struct fwnode_handle *fwnode)
} else {
if (fwnode_is_primary(fn)) {
dev->fwnode = fn->secondary;
- fn->secondary = NULL;
+ if (!(parent && fn == parent->fwnode))
+ fn->secondary = ERR_PTR(-ENODEV);
} else {
dev->fwnode = NULL;
}
diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c
index f22fad977c91..cdf62fb94fb1 100644
--- a/drivers/block/nbd.c
+++ b/drivers/block/nbd.c
@@ -725,9 +725,9 @@ static void recv_work(struct work_struct *work)

blk_mq_complete_request(blk_mq_rq_from_pdu(cmd));
}
+ nbd_config_put(nbd);
atomic_dec(&config->recv_threads);
wake_up(&config->recv_wq);
- nbd_config_put(nbd);
kfree(args);
}

diff --git a/drivers/clk/ti/clockdomain.c b/drivers/clk/ti/clockdomain.c
index 07a805125e98..11d92311e162 100644
--- a/drivers/clk/ti/clockdomain.c
+++ b/drivers/clk/ti/clockdomain.c
@@ -146,10 +146,12 @@ static void __init of_ti_clockdomain_setup(struct device_node *node)
if (clk_hw_get_flags(clk_hw) & CLK_IS_BASIC) {
pr_warn("can't setup clkdm for basic clk %s\n",
__clk_get_name(clk));
+ clk_put(clk);
continue;
}
to_clk_hw_omap(clk_hw)->clkdm_name = clkdm_name;
omap2_init_clk_clkdm(clk_hw);
+ clk_put(clk);
}
}

diff --git a/drivers/cpufreq/acpi-cpufreq.c b/drivers/cpufreq/acpi-cpufreq.c
index 51a3c15ace09..8a199b4047c2 100644
--- a/drivers/cpufreq/acpi-cpufreq.c
+++ b/drivers/cpufreq/acpi-cpufreq.c
@@ -701,7 +701,8 @@ static int acpi_cpufreq_cpu_init(struct cpufreq_policy *policy)
cpumask_copy(policy->cpus, topology_core_cpumask(cpu));
}

- if (check_amd_hwpstate_cpu(cpu) && !acpi_pstate_strict) {
+ if (check_amd_hwpstate_cpu(cpu) && boot_cpu_data.x86 < 0x19 &&
+ !acpi_pstate_strict) {
cpumask_clear(policy->cpus);
cpumask_set_cpu(cpu, policy->cpus);
cpumask_copy(data->freqdomain_cpus,
diff --git a/drivers/cpufreq/sti-cpufreq.c b/drivers/cpufreq/sti-cpufreq.c
index 47105735df12..6b5d241c30b7 100644
--- a/drivers/cpufreq/sti-cpufreq.c
+++ b/drivers/cpufreq/sti-cpufreq.c
@@ -144,7 +144,8 @@ static const struct reg_field sti_stih407_dvfs_regfields[DVFS_MAX_REGFIELDS] = {
static const struct reg_field *sti_cpufreq_match(void)
{
if (of_machine_is_compatible("st,stih407") ||
- of_machine_is_compatible("st,stih410"))
+ of_machine_is_compatible("st,stih410") ||
+ of_machine_is_compatible("st,stih418"))
return sti_stih407_dvfs_regfields;

return NULL;
@@ -261,7 +262,8 @@ static int sti_cpufreq_init(void)
int ret;

if ((!of_machine_is_compatible("st,stih407")) &&
- (!of_machine_is_compatible("st,stih410")))
+ (!of_machine_is_compatible("st,stih410")) &&
+ (!of_machine_is_compatible("st,stih418")))
return -ENODEV;

ddata.cpu = get_cpu_device(0);
diff --git a/drivers/dma/dma-jz4780.c b/drivers/dma/dma-jz4780.c
index aca2d6fd92d5..e1b6787f0e68 100644
--- a/drivers/dma/dma-jz4780.c
+++ b/drivers/dma/dma-jz4780.c
@@ -567,11 +567,11 @@ static enum dma_status jz4780_dma_tx_status(struct dma_chan *chan,
enum dma_status status;
unsigned long flags;

+ spin_lock_irqsave(&jzchan->vchan.lock, flags);
+
status = dma_cookie_status(chan, cookie, txstate);
if ((status == DMA_COMPLETE) || (txstate == NULL))
- return status;
-
- spin_lock_irqsave(&jzchan->vchan.lock, flags);
+ goto out_unlock_irqrestore;

vdesc = vchan_find_desc(&jzchan->vchan, cookie);
if (vdesc) {
@@ -588,6 +588,7 @@ static enum dma_status jz4780_dma_tx_status(struct dma_chan *chan,
&& jzchan->desc->status & (JZ_DMA_DCS_AR | JZ_DMA_DCS_HLT))
status = DMA_ERROR;

+out_unlock_irqrestore:
spin_unlock_irqrestore(&jzchan->vchan.lock, flags);
return status;
}
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
index 837332e84d78..e708c52b65f2 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
@@ -551,6 +551,7 @@ int amdgpu_gem_va_ioctl(struct drm_device *dev, void *data,
struct ww_acquire_ctx ticket;
struct list_head list;
uint64_t va_flags;
+ uint64_t vm_size;
int r = 0;

if (args->va_address < AMDGPU_VA_RESERVED_SIZE) {
@@ -561,6 +562,15 @@ int amdgpu_gem_va_ioctl(struct drm_device *dev, void *data,
return -EINVAL;
}

+ vm_size = adev->vm_manager.max_pfn * AMDGPU_GPU_PAGE_SIZE;
+ vm_size -= AMDGPU_VA_RESERVED_SIZE;
+ if (args->va_address + args->map_size > vm_size) {
+ dev_dbg(&dev->pdev->dev,
+ "va_address 0x%llx is in top reserved area 0x%llx\n",
+ args->va_address + args->map_size, vm_size);
+ return -EINVAL;
+ }
+
if ((args->flags & ~valid_flags) && (args->flags & ~prt_flags)) {
dev_err(&dev->pdev->dev, "invalid flags combination 0x%08X\n",
args->flags);
diff --git a/drivers/gpu/drm/bridge/megachips-stdpxxxx-ge-b850v3-fw.c b/drivers/gpu/drm/bridge/megachips-stdpxxxx-ge-b850v3-fw.c
index 7ccadba7c98c..9f522372a488 100644
--- a/drivers/gpu/drm/bridge/megachips-stdpxxxx-ge-b850v3-fw.c
+++ b/drivers/gpu/drm/bridge/megachips-stdpxxxx-ge-b850v3-fw.c
@@ -306,8 +306,12 @@ static int stdp4028_ge_b850v3_fw_probe(struct i2c_client *stdp4028_i2c,
const struct i2c_device_id *id)
{
struct device *dev = &stdp4028_i2c->dev;
+ int ret;
+
+ ret = ge_b850v3_lvds_init(dev);

- ge_b850v3_lvds_init(dev);
+ if (ret)
+ return ret;

ge_b850v3_lvds_ptr->stdp4028_i2c = stdp4028_i2c;
i2c_set_clientdata(stdp4028_i2c, ge_b850v3_lvds_ptr);
@@ -365,8 +369,12 @@ static int stdp2690_ge_b850v3_fw_probe(struct i2c_client *stdp2690_i2c,
const struct i2c_device_id *id)
{
struct device *dev = &stdp2690_i2c->dev;
+ int ret;
+
+ ret = ge_b850v3_lvds_init(dev);

- ge_b850v3_lvds_init(dev);
+ if (ret)
+ return ret;

ge_b850v3_lvds_ptr->stdp2690_i2c = stdp2690_i2c;
i2c_set_clientdata(stdp2690_i2c, ge_b850v3_lvds_ptr);
diff --git a/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c b/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c
index 63c7a01b7053..d95b0703d025 100644
--- a/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c
+++ b/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c
@@ -311,7 +311,6 @@ static void dw_mipi_message_config(struct dw_mipi_dsi *dsi,
if (lpm)
val |= CMD_MODE_ALL_LP;

- dsi_write(dsi, DSI_LPCLK_CTRL, lpm ? 0 : PHY_TXREQUESTCLKHS);
dsi_write(dsi, DSI_CMD_MODE_CFG, val);
}

@@ -468,16 +467,22 @@ static void dw_mipi_dsi_video_mode_config(struct dw_mipi_dsi *dsi)
static void dw_mipi_dsi_set_mode(struct dw_mipi_dsi *dsi,
unsigned long mode_flags)
{
+ u32 val;
+
dsi_write(dsi, DSI_PWR_UP, RESET);

if (mode_flags & MIPI_DSI_MODE_VIDEO) {
dsi_write(dsi, DSI_MODE_CFG, ENABLE_VIDEO_MODE);
dw_mipi_dsi_video_mode_config(dsi);
- dsi_write(dsi, DSI_LPCLK_CTRL, PHY_TXREQUESTCLKHS);
} else {
dsi_write(dsi, DSI_MODE_CFG, ENABLE_CMD_MODE);
}

+ val = PHY_TXREQUESTCLKHS;
+ if (dsi->mode_flags & MIPI_DSI_CLOCK_NON_CONTINUOUS)
+ val |= AUTO_CLKLANE_CTRL;
+ dsi_write(dsi, DSI_LPCLK_CTRL, val);
+
dsi_write(dsi, DSI_PWR_UP, POWERUP);
}

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index a5fb7404b29e..816781f209d6 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -33,6 +33,8 @@
#include <uapi/drm/i915_drm.h>
#include <uapi/drm/drm_fourcc.h>

+#include <asm/hypervisor.h>
+
#include <linux/io-mapping.h>
#include <linux/i2c.h>
#include <linux/i2c-algo-bit.h>
@@ -3141,7 +3143,9 @@ static inline bool intel_vtd_active(void)
if (intel_iommu_gfx_mapped)
return true;
#endif
- return false;
+
+ /* Running as a guest, we assume the host is enforcing VT'd */
+ return !hypervisor_is_type(X86_HYPER_NATIVE);
}

static inline bool intel_scanout_needs_vtd_wa(struct drm_i915_private *dev_priv)
diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
index 68eed684dff5..353961c46fb4 100644
--- a/drivers/gpu/drm/ttm/ttm_bo.c
+++ b/drivers/gpu/drm/ttm/ttm_bo.c
@@ -721,7 +721,7 @@ bool ttm_bo_eviction_valuable(struct ttm_buffer_object *bo,
/* Don't evict this BO if it's outside of the
* requested placement range
*/
- if (place->fpfn >= (bo->mem.start + bo->mem.size) ||
+ if (place->fpfn >= (bo->mem.start + bo->mem.num_pages) ||
(place->lpfn && place->lpfn <= bo->mem.start))
return false;

diff --git a/drivers/iio/adc/ti-adc0832.c b/drivers/iio/adc/ti-adc0832.c
index e952e94a14af..a78536b39b36 100644
--- a/drivers/iio/adc/ti-adc0832.c
+++ b/drivers/iio/adc/ti-adc0832.c
@@ -31,6 +31,12 @@ struct adc0832 {
struct regulator *reg;
struct mutex lock;
u8 mux_bits;
+ /*
+ * Max size needed: 16x 1 byte ADC data + 8 bytes timestamp
+ * May be shorter if not all channels are enabled subject
+ * to the timestamp remaining 8 byte aligned.
+ */
+ u8 data[24] __aligned(8);

u8 tx_buf[2] ____cacheline_aligned;
u8 rx_buf[2];
@@ -203,7 +209,6 @@ static irqreturn_t adc0832_trigger_handler(int irq, void *p)
struct iio_poll_func *pf = p;
struct iio_dev *indio_dev = pf->indio_dev;
struct adc0832 *adc = iio_priv(indio_dev);
- u8 data[24] = { }; /* 16x 1 byte ADC data + 8 bytes timestamp */
int scan_index;
int i = 0;

@@ -221,10 +226,10 @@ static irqreturn_t adc0832_trigger_handler(int irq, void *p)
goto out;
}

- data[i] = ret;
+ adc->data[i] = ret;
i++;
}
- iio_push_to_buffers_with_timestamp(indio_dev, data,
+ iio_push_to_buffers_with_timestamp(indio_dev, adc->data,
iio_get_time_ns(indio_dev));
out:
mutex_unlock(&adc->lock);
diff --git a/drivers/iio/adc/ti-adc12138.c b/drivers/iio/adc/ti-adc12138.c
index 072f03bfe6a0..1410a41782cc 100644
--- a/drivers/iio/adc/ti-adc12138.c
+++ b/drivers/iio/adc/ti-adc12138.c
@@ -50,6 +50,12 @@ struct adc12138 {
struct completion complete;
/* The number of cclk periods for the S/H's acquisition time */
unsigned int acquisition_time;
+ /*
+ * Maximum size needed: 16x 2 bytes ADC data + 8 bytes timestamp.
+ * Less may be need if not all channels are enabled, as long as
+ * the 8 byte alignment of the timestamp is maintained.
+ */
+ __be16 data[20] __aligned(8);

u8 tx_buf[2] ____cacheline_aligned;
u8 rx_buf[2];
@@ -333,7 +339,6 @@ static irqreturn_t adc12138_trigger_handler(int irq, void *p)
struct iio_poll_func *pf = p;
struct iio_dev *indio_dev = pf->indio_dev;
struct adc12138 *adc = iio_priv(indio_dev);
- __be16 data[20] = { }; /* 16x 2 bytes ADC data + 8 bytes timestamp */
__be16 trash;
int ret;
int scan_index;
@@ -349,7 +354,7 @@ static irqreturn_t adc12138_trigger_handler(int irq, void *p)
reinit_completion(&adc->complete);

ret = adc12138_start_and_read_conv(adc, scan_chan,
- i ? &data[i - 1] : &trash);
+ i ? &adc->data[i - 1] : &trash);
if (ret) {
dev_warn(&adc->spi->dev,
"failed to start conversion\n");
@@ -366,7 +371,7 @@ static irqreturn_t adc12138_trigger_handler(int irq, void *p)
}

if (i) {
- ret = adc12138_read_conv_data(adc, &data[i - 1]);
+ ret = adc12138_read_conv_data(adc, &adc->data[i - 1]);
if (ret) {
dev_warn(&adc->spi->dev,
"failed to get conversion data\n");
@@ -374,7 +379,7 @@ static irqreturn_t adc12138_trigger_handler(int irq, void *p)
}
}

- iio_push_to_buffers_with_timestamp(indio_dev, data,
+ iio_push_to_buffers_with_timestamp(indio_dev, adc->data,
iio_get_time_ns(indio_dev));
out:
mutex_unlock(&adc->lock);
diff --git a/drivers/iio/gyro/itg3200_buffer.c b/drivers/iio/gyro/itg3200_buffer.c
index eef50e91f17c..e04483254b28 100644
--- a/drivers/iio/gyro/itg3200_buffer.c
+++ b/drivers/iio/gyro/itg3200_buffer.c
@@ -49,13 +49,20 @@ static irqreturn_t itg3200_trigger_handler(int irq, void *p)
struct iio_poll_func *pf = p;
struct iio_dev *indio_dev = pf->indio_dev;
struct itg3200 *st = iio_priv(indio_dev);
- __be16 buf[ITG3200_SCAN_ELEMENTS + sizeof(s64)/sizeof(u16)];
-
- int ret = itg3200_read_all_channels(st->i2c, buf);
+ /*
+ * Ensure correct alignment and padding including for the
+ * timestamp that may be inserted.
+ */
+ struct {
+ __be16 buf[ITG3200_SCAN_ELEMENTS];
+ s64 ts __aligned(8);
+ } scan;
+
+ int ret = itg3200_read_all_channels(st->i2c, scan.buf);
if (ret < 0)
goto error_ret;

- iio_push_to_buffers_with_timestamp(indio_dev, buf, pf->timestamp);
+ iio_push_to_buffers_with_timestamp(indio_dev, &scan, pf->timestamp);

iio_trigger_notify_done(indio_dev->trig);

diff --git a/drivers/iio/light/si1145.c b/drivers/iio/light/si1145.c
index 096034c126a4..c292d9816118 100644
--- a/drivers/iio/light/si1145.c
+++ b/drivers/iio/light/si1145.c
@@ -172,6 +172,7 @@ struct si1145_part_info {
* @part_info: Part information
* @trig: Pointer to iio trigger
* @meas_rate: Value of MEAS_RATE register. Only set in HW in auto mode
+ * @buffer: Used to pack data read from sensor.
*/
struct si1145_data {
struct i2c_client *client;
@@ -183,6 +184,14 @@ struct si1145_data {
bool autonomous;
struct iio_trigger *trig;
int meas_rate;
+ /*
+ * Ensure timestamp will be naturally aligned if present.
+ * Maximum buffer size (may be only partly used if not all
+ * channels are enabled):
+ * 6*2 bytes channels data + 4 bytes alignment +
+ * 8 bytes timestamp
+ */
+ u8 buffer[24] __aligned(8);
};

/**
@@ -444,12 +453,6 @@ static irqreturn_t si1145_trigger_handler(int irq, void *private)
struct iio_poll_func *pf = private;
struct iio_dev *indio_dev = pf->indio_dev;
struct si1145_data *data = iio_priv(indio_dev);
- /*
- * Maximum buffer size:
- * 6*2 bytes channels data + 4 bytes alignment +
- * 8 bytes timestamp
- */
- u8 buffer[24];
int i, j = 0;
int ret;
u8 irq_status = 0;
@@ -482,7 +485,7 @@ static irqreturn_t si1145_trigger_handler(int irq, void *private)

ret = i2c_smbus_read_i2c_block_data_or_emulated(
data->client, indio_dev->channels[i].address,
- sizeof(u16) * run, &buffer[j]);
+ sizeof(u16) * run, &data->buffer[j]);
if (ret < 0)
goto done;
j += run * sizeof(u16);
@@ -497,7 +500,7 @@ static irqreturn_t si1145_trigger_handler(int irq, void *private)
goto done;
}

- iio_push_to_buffers_with_timestamp(indio_dev, buffer,
+ iio_push_to_buffers_with_timestamp(indio_dev, data->buffer,
iio_get_time_ns(indio_dev));

done:
diff --git a/drivers/input/serio/hil_mlc.c b/drivers/input/serio/hil_mlc.c
index 65605e4ef3cf..1491a9a5c6b0 100644
--- a/drivers/input/serio/hil_mlc.c
+++ b/drivers/input/serio/hil_mlc.c
@@ -74,7 +74,7 @@ EXPORT_SYMBOL(hil_mlc_unregister);
static LIST_HEAD(hil_mlcs);
static DEFINE_RWLOCK(hil_mlcs_lock);
static struct timer_list hil_mlcs_kicker;
-static int hil_mlcs_probe;
+static int hil_mlcs_probe, hil_mlc_stop;

static void hil_mlcs_process(unsigned long unused);
static DECLARE_TASKLET_DISABLED(hil_mlcs_tasklet, hil_mlcs_process, 0);
@@ -704,9 +704,13 @@ static int hilse_donode(hil_mlc *mlc)
if (!mlc->ostarted) {
mlc->ostarted = 1;
mlc->opacket = pack;
- mlc->out(mlc);
+ rc = mlc->out(mlc);
nextidx = HILSEN_DOZE;
write_unlock_irqrestore(&mlc->lock, flags);
+ if (rc) {
+ hil_mlc_stop = 1;
+ return 1;
+ }
break;
}
mlc->ostarted = 0;
@@ -717,8 +721,13 @@ static int hilse_donode(hil_mlc *mlc)

case HILSE_CTS:
write_lock_irqsave(&mlc->lock, flags);
- nextidx = mlc->cts(mlc) ? node->bad : node->good;
+ rc = mlc->cts(mlc);
+ nextidx = rc ? node->bad : node->good;
write_unlock_irqrestore(&mlc->lock, flags);
+ if (rc) {
+ hil_mlc_stop = 1;
+ return 1;
+ }
break;

default:
@@ -786,6 +795,12 @@ static void hil_mlcs_process(unsigned long unused)

static void hil_mlcs_timer(unsigned long data)
{
+ if (hil_mlc_stop) {
+ /* could not send packet - stop immediately. */
+ pr_warn(PREFIX "HIL seems stuck - Disabling HIL MLC.\n");
+ return;
+ }
+
hil_mlcs_probe = 1;
tasklet_schedule(&hil_mlcs_tasklet);
/* Re-insert the periodic task. */
diff --git a/drivers/input/serio/hp_sdc_mlc.c b/drivers/input/serio/hp_sdc_mlc.c
index d50f0678bf47..078cbe6522a2 100644
--- a/drivers/input/serio/hp_sdc_mlc.c
+++ b/drivers/input/serio/hp_sdc_mlc.c
@@ -213,7 +213,7 @@ static int hp_sdc_mlc_cts(hil_mlc *mlc)
priv->tseq[2] = 1;
priv->tseq[3] = 0;
priv->tseq[4] = 0;
- __hp_sdc_enqueue_transaction(&priv->trans);
+ return __hp_sdc_enqueue_transaction(&priv->trans);
busy:
return 1;
done:
@@ -222,7 +222,7 @@ static int hp_sdc_mlc_cts(hil_mlc *mlc)
return 0;
}

-static void hp_sdc_mlc_out(hil_mlc *mlc)
+static int hp_sdc_mlc_out(hil_mlc *mlc)
{
struct hp_sdc_mlc_priv_s *priv;

@@ -237,7 +237,7 @@ static void hp_sdc_mlc_out(hil_mlc *mlc)
do_data:
if (priv->emtestmode) {
up(&mlc->osem);
- return;
+ return 0;
}
/* Shouldn't be sending commands when loop may be busy */
BUG_ON(down_trylock(&mlc->csem));
@@ -299,7 +299,7 @@ static void hp_sdc_mlc_out(hil_mlc *mlc)
BUG_ON(down_trylock(&mlc->csem));
}
enqueue:
- hp_sdc_enqueue_transaction(&priv->trans);
+ return hp_sdc_enqueue_transaction(&priv->trans);
}

static int __init hp_sdc_mlc_init(void)
diff --git a/drivers/leds/leds-bcm6328.c b/drivers/leds/leds-bcm6328.c
index 2cfd9389ee96..b944ae828004 100644
--- a/drivers/leds/leds-bcm6328.c
+++ b/drivers/leds/leds-bcm6328.c
@@ -336,7 +336,7 @@ static int bcm6328_led(struct device *dev, struct device_node *nc, u32 reg,
led->cdev.brightness_set = bcm6328_led_set;
led->cdev.blink_set = bcm6328_blink_set;

- rc = led_classdev_register(dev, &led->cdev);
+ rc = devm_led_classdev_register(dev, &led->cdev);
if (rc < 0)
return rc;

diff --git a/drivers/leds/leds-bcm6358.c b/drivers/leds/leds-bcm6358.c
index b2cc06618abe..a86ab6197a4e 100644
--- a/drivers/leds/leds-bcm6358.c
+++ b/drivers/leds/leds-bcm6358.c
@@ -141,7 +141,7 @@ static int bcm6358_led(struct device *dev, struct device_node *nc, u32 reg,

led->cdev.brightness_set = bcm6358_led_set;

- rc = led_classdev_register(dev, &led->cdev);
+ rc = devm_led_classdev_register(dev, &led->cdev);
if (rc < 0)
return rc;

diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c
index 7eb76a1a2505..521c13f7929c 100644
--- a/drivers/md/bitmap.c
+++ b/drivers/md/bitmap.c
@@ -1369,7 +1369,7 @@ __acquires(bitmap->lock)
if (bitmap->bp[page].hijacked ||
bitmap->bp[page].map == NULL)
csize = ((sector_t)1) << (bitmap->chunkshift +
- PAGE_COUNTER_SHIFT - 1);
+ PAGE_COUNTER_SHIFT);
else
csize = ((sector_t)1) << bitmap->chunkshift;
*blocks = csize - (offset & (csize - 1));
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index cd055664dce3..ed55b02f9f89 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -2415,8 +2415,6 @@ static int resize_stripes(struct r5conf *conf, int newsize)
} else
err = -ENOMEM;

- mutex_unlock(&conf->cache_size_mutex);
-
conf->slab_cache = sc;
conf->active_name = 1-conf->active_name;

@@ -2439,6 +2437,8 @@ static int resize_stripes(struct r5conf *conf, int newsize)

if (!err)
conf->pool_size = newsize;
+ mutex_unlock(&conf->cache_size_mutex);
+
return err;
}

diff --git a/drivers/media/pci/tw5864/tw5864-video.c b/drivers/media/pci/tw5864/tw5864-video.c
index ee1230440b39..02258685800a 100644
--- a/drivers/media/pci/tw5864/tw5864-video.c
+++ b/drivers/media/pci/tw5864/tw5864-video.c
@@ -776,6 +776,9 @@ static int tw5864_enum_frameintervals(struct file *file, void *priv,
fintv->type = V4L2_FRMIVAL_TYPE_STEPWISE;

ret = tw5864_frameinterval_get(input, &frameinterval);
+ if (ret)
+ return ret;
+
fintv->stepwise.step = frameinterval;
fintv->stepwise.min = frameinterval;
fintv->stepwise.max = frameinterval;
@@ -794,6 +797,9 @@ static int tw5864_g_parm(struct file *file, void *priv,
cp->capability = V4L2_CAP_TIMEPERFRAME;

ret = tw5864_frameinterval_get(input, &cp->timeperframe);
+ if (ret)
+ return ret;
+
cp->timeperframe.numerator *= input->frame_interval;
cp->capturemode = 0;
cp->readbuffers = 2;
diff --git a/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c b/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c
index 46c996936798..fd9e13500fe7 100644
--- a/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c
+++ b/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c
@@ -579,6 +579,13 @@ static int mtk_jpeg_queue_setup(struct vb2_queue *q,
if (!q_data)
return -EINVAL;

+ if (*num_planes) {
+ for (i = 0; i < *num_planes; i++)
+ if (sizes[i] < q_data->sizeimage[i])
+ return -EINVAL;
+ return 0;
+ }
+
*num_planes = q_data->fmt->colplanes;
for (i = 0; i < q_data->fmt->colplanes; i++) {
sizes[i] = q_data->sizeimage[i];
diff --git a/drivers/memory/emif.c b/drivers/memory/emif.c
index 04644e7b42b1..88c32b8dc88a 100644
--- a/drivers/memory/emif.c
+++ b/drivers/memory/emif.c
@@ -165,35 +165,12 @@ static const struct file_operations emif_mr4_fops = {

static int __init_or_module emif_debugfs_init(struct emif_data *emif)
{
- struct dentry *dentry;
- int ret;
-
- dentry = debugfs_create_dir(dev_name(emif->dev), NULL);
- if (!dentry) {
- ret = -ENOMEM;
- goto err0;
- }
- emif->debugfs_root = dentry;
-
- dentry = debugfs_create_file("regcache_dump", S_IRUGO,
- emif->debugfs_root, emif, &emif_regdump_fops);
- if (!dentry) {
- ret = -ENOMEM;
- goto err1;
- }
-
- dentry = debugfs_create_file("mr4", S_IRUGO,
- emif->debugfs_root, emif, &emif_mr4_fops);
- if (!dentry) {
- ret = -ENOMEM;
- goto err1;
- }
-
+ emif->debugfs_root = debugfs_create_dir(dev_name(emif->dev), NULL);
+ debugfs_create_file("regcache_dump", S_IRUGO, emif->debugfs_root, emif,
+ &emif_regdump_fops);
+ debugfs_create_file("mr4", S_IRUGO, emif->debugfs_root, emif,
+ &emif_mr4_fops);
return 0;
-err1:
- debugfs_remove_recursive(emif->debugfs_root);
-err0:
- return ret;
}

static void __exit emif_debugfs_exit(struct emif_data *emif)
diff --git a/drivers/message/fusion/mptscsih.c b/drivers/message/fusion/mptscsih.c
index 2af7ae13449d..cec867c10968 100644
--- a/drivers/message/fusion/mptscsih.c
+++ b/drivers/message/fusion/mptscsih.c
@@ -1174,8 +1174,10 @@ mptscsih_remove(struct pci_dev *pdev)
MPT_SCSI_HOST *hd;
int sz1;

- if((hd = shost_priv(host)) == NULL)
- return;
+ if (host == NULL)
+ hd = NULL;
+ else
+ hd = shost_priv(host);

mptscsih_shutdown(pdev);

@@ -1191,14 +1193,15 @@ mptscsih_remove(struct pci_dev *pdev)
"Free'd ScsiLookup (%d) memory\n",
ioc->name, sz1));

- kfree(hd->info_kbuf);
+ if (hd)
+ kfree(hd->info_kbuf);

/* NULL the Scsi_Host pointer
*/
ioc->sh = NULL;

- scsi_host_put(host);
-
+ if (host)
+ scsi_host_put(host);
mpt_detach(pdev);

}
diff --git a/drivers/mmc/host/via-sdmmc.c b/drivers/mmc/host/via-sdmmc.c
index a863a345fc59..8c0e348c6053 100644
--- a/drivers/mmc/host/via-sdmmc.c
+++ b/drivers/mmc/host/via-sdmmc.c
@@ -1275,11 +1275,14 @@ static void via_init_sdc_pm(struct via_crdr_mmc_host *host)
static int via_sd_suspend(struct pci_dev *pcidev, pm_message_t state)
{
struct via_crdr_mmc_host *host;
+ unsigned long flags;

host = pci_get_drvdata(pcidev);

+ spin_lock_irqsave(&host->lock, flags);
via_save_pcictrlreg(host);
via_save_sdcreg(host);
+ spin_unlock_irqrestore(&host->lock, flags);

pci_save_state(pcidev);
pci_enable_wake(pcidev, pci_choose_state(pcidev, state), 0);
diff --git a/drivers/mtd/ubi/wl.c b/drivers/mtd/ubi/wl.c
index a8f74d9bba4f..545a92eb8f56 100644
--- a/drivers/mtd/ubi/wl.c
+++ b/drivers/mtd/ubi/wl.c
@@ -1478,6 +1478,19 @@ int ubi_thread(void *u)
!ubi->thread_enabled || ubi_dbg_is_bgt_disabled(ubi)) {
set_current_state(TASK_INTERRUPTIBLE);
spin_unlock(&ubi->wl_lock);
+
+ /*
+ * Check kthread_should_stop() after we set the task
+ * state to guarantee that we either see the stop bit
+ * and exit or the task state is reset to runnable such
+ * that it's not scheduled out indefinitely and detects
+ * the stop bit at kthread_should_stop().
+ */
+ if (kthread_should_stop()) {
+ set_current_state(TASK_RUNNING);
+ break;
+ }
+
schedule();
continue;
}
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index a03239ba1a32..e146f6a1fa80 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -5780,6 +5780,11 @@ static void bnxt_report_link(struct bnxt *bp)
u16 fec;

netif_carrier_on(bp->dev);
+ speed = bnxt_fw_to_ethtool_speed(bp->link_info.link_speed);
+ if (speed == SPEED_UNKNOWN) {
+ netdev_info(bp->dev, "NIC Link is Up, speed unknown\n");
+ return;
+ }
if (bp->link_info.duplex == BNXT_LINK_DUPLEX_FULL)
duplex = "full";
else
@@ -5792,7 +5797,6 @@ static void bnxt_report_link(struct bnxt *bp)
flow_ctrl = "ON - receive";
else
flow_ctrl = "none";
- speed = bnxt_fw_to_ethtool_speed(bp->link_info.link_speed);
netdev_info(bp->dev, "NIC Link is Up, %u Mbps %s duplex, Flow control: %s\n",
speed, duplex, flow_ctrl);
if (bp->flags & BNXT_FLAG_EEE_CAP)
diff --git a/drivers/net/ethernet/mellanox/mlxsw/core.c b/drivers/net/ethernet/mellanox/mlxsw/core.c
index dc12ab33afff..bda615614af5 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/core.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/core.c
@@ -520,6 +520,9 @@ static void mlxsw_emad_transmit_retry(struct mlxsw_core *mlxsw_core,
err = mlxsw_emad_transmit(trans->core, trans);
if (err == 0)
return;
+
+ if (!atomic_dec_and_test(&trans->active))
+ return;
} else {
err = -EIO;
}
diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c
index 9f4d93a16b7e..58496fb84b05 100644
--- a/drivers/net/ethernet/renesas/ravb_main.c
+++ b/drivers/net/ethernet/renesas/ravb_main.c
@@ -1768,12 +1768,16 @@ static int ravb_hwtstamp_get(struct net_device *ndev, struct ifreq *req)
config.flags = 0;
config.tx_type = priv->tstamp_tx_ctrl ? HWTSTAMP_TX_ON :
HWTSTAMP_TX_OFF;
- if (priv->tstamp_rx_ctrl & RAVB_RXTSTAMP_TYPE_V2_L2_EVENT)
+ switch (priv->tstamp_rx_ctrl & RAVB_RXTSTAMP_TYPE) {
+ case RAVB_RXTSTAMP_TYPE_V2_L2_EVENT:
config.rx_filter = HWTSTAMP_FILTER_PTP_V2_L2_EVENT;
- else if (priv->tstamp_rx_ctrl & RAVB_RXTSTAMP_TYPE_ALL)
+ break;
+ case RAVB_RXTSTAMP_TYPE_ALL:
config.rx_filter = HWTSTAMP_FILTER_ALL;
- else
+ break;
+ default:
config.rx_filter = HWTSTAMP_FILTER_NONE;
+ }

return copy_to_user(req->ifr_data, &config, sizeof(config)) ?
-EFAULT : 0;
diff --git a/drivers/net/gtp.c b/drivers/net/gtp.c
index d3ccd6929579..0440c96e98b3 100644
--- a/drivers/net/gtp.c
+++ b/drivers/net/gtp.c
@@ -667,10 +667,6 @@ static int gtp_newlink(struct net *src_net, struct net_device *dev,

gtp = netdev_priv(dev);

- err = gtp_encap_enable(gtp, data);
- if (err < 0)
- return err;
-
if (!data[IFLA_GTP_PDP_HASHSIZE]) {
hashsize = 1024;
} else {
@@ -681,12 +677,16 @@ static int gtp_newlink(struct net *src_net, struct net_device *dev,

err = gtp_hashtable_new(gtp, hashsize);
if (err < 0)
- goto out_encap;
+ return err;
+
+ err = gtp_encap_enable(gtp, data);
+ if (err < 0)
+ goto out_hashtable;

err = register_netdevice(dev);
if (err < 0) {
netdev_dbg(dev, "failed to register new netdev %d\n", err);
- goto out_hashtable;
+ goto out_encap;
}

gn = net_generic(dev_net(dev), gtp_net_id);
@@ -697,11 +697,11 @@ static int gtp_newlink(struct net *src_net, struct net_device *dev,

return 0;

+out_encap:
+ gtp_encap_disable(gtp);
out_hashtable:
kfree(gtp->addr_hash);
kfree(gtp->tid_hash);
-out_encap:
- gtp_encap_disable(gtp);
return err;
}

diff --git a/drivers/net/wan/hdlc_fr.c b/drivers/net/wan/hdlc_fr.c
index 5a8dbeaf1a42..d3b553218058 100644
--- a/drivers/net/wan/hdlc_fr.c
+++ b/drivers/net/wan/hdlc_fr.c
@@ -275,63 +275,69 @@ static inline struct net_device **get_dev_p(struct pvc_device *pvc,

static int fr_hard_header(struct sk_buff **skb_p, u16 dlci)
{
- u16 head_len;
struct sk_buff *skb = *skb_p;

- switch (skb->protocol) {
- case cpu_to_be16(NLPID_CCITT_ANSI_LMI):
- head_len = 4;
- skb_push(skb, head_len);
- skb->data[3] = NLPID_CCITT_ANSI_LMI;
- break;
-
- case cpu_to_be16(NLPID_CISCO_LMI):
- head_len = 4;
- skb_push(skb, head_len);
- skb->data[3] = NLPID_CISCO_LMI;
- break;
-
- case cpu_to_be16(ETH_P_IP):
- head_len = 4;
- skb_push(skb, head_len);
- skb->data[3] = NLPID_IP;
- break;
-
- case cpu_to_be16(ETH_P_IPV6):
- head_len = 4;
- skb_push(skb, head_len);
- skb->data[3] = NLPID_IPV6;
- break;
-
- case cpu_to_be16(ETH_P_802_3):
- head_len = 10;
- if (skb_headroom(skb) < head_len) {
- struct sk_buff *skb2 = skb_realloc_headroom(skb,
- head_len);
+ if (!skb->dev) { /* Control packets */
+ switch (dlci) {
+ case LMI_CCITT_ANSI_DLCI:
+ skb_push(skb, 4);
+ skb->data[3] = NLPID_CCITT_ANSI_LMI;
+ break;
+
+ case LMI_CISCO_DLCI:
+ skb_push(skb, 4);
+ skb->data[3] = NLPID_CISCO_LMI;
+ break;
+
+ default:
+ return -EINVAL;
+ }
+
+ } else if (skb->dev->type == ARPHRD_DLCI) {
+ switch (skb->protocol) {
+ case htons(ETH_P_IP):
+ skb_push(skb, 4);
+ skb->data[3] = NLPID_IP;
+ break;
+
+ case htons(ETH_P_IPV6):
+ skb_push(skb, 4);
+ skb->data[3] = NLPID_IPV6;
+ break;
+
+ default:
+ skb_push(skb, 10);
+ skb->data[3] = FR_PAD;
+ skb->data[4] = NLPID_SNAP;
+ /* OUI 00-00-00 indicates an Ethertype follows */
+ skb->data[5] = 0x00;
+ skb->data[6] = 0x00;
+ skb->data[7] = 0x00;
+ /* This should be an Ethertype: */
+ *(__be16 *)(skb->data + 8) = skb->protocol;
+ }
+
+ } else if (skb->dev->type == ARPHRD_ETHER) {
+ if (skb_headroom(skb) < 10) {
+ struct sk_buff *skb2 = skb_realloc_headroom(skb, 10);
if (!skb2)
return -ENOBUFS;
dev_kfree_skb(skb);
skb = *skb_p = skb2;
}
- skb_push(skb, head_len);
+ skb_push(skb, 10);
skb->data[3] = FR_PAD;
skb->data[4] = NLPID_SNAP;
- skb->data[5] = FR_PAD;
+ /* OUI 00-80-C2 stands for the 802.1 organization */
+ skb->data[5] = 0x00;
skb->data[6] = 0x80;
skb->data[7] = 0xC2;
+ /* PID 00-07 stands for Ethernet frames without FCS */
skb->data[8] = 0x00;
- skb->data[9] = 0x07; /* bridged Ethernet frame w/out FCS */
- break;
+ skb->data[9] = 0x07;

- default:
- head_len = 10;
- skb_push(skb, head_len);
- skb->data[3] = FR_PAD;
- skb->data[4] = NLPID_SNAP;
- skb->data[5] = FR_PAD;
- skb->data[6] = FR_PAD;
- skb->data[7] = FR_PAD;
- *(__be16*)(skb->data + 8) = skb->protocol;
+ } else {
+ return -EINVAL;
}

dlci_to_q922(skb->data, dlci);
@@ -427,8 +433,8 @@ static netdev_tx_t pvc_xmit(struct sk_buff *skb, struct net_device *dev)
skb_put(skb, pad);
memset(skb->data + len, 0, pad);
}
- skb->protocol = cpu_to_be16(ETH_P_802_3);
}
+ skb->dev = dev;
if (!fr_hard_header(&skb, pvc->dlci)) {
dev->stats.tx_bytes += skb->len;
dev->stats.tx_packets++;
@@ -496,10 +502,8 @@ static void fr_lmi_send(struct net_device *dev, int fullrep)
memset(skb->data, 0, len);
skb_reserve(skb, 4);
if (lmi == LMI_CISCO) {
- skb->protocol = cpu_to_be16(NLPID_CISCO_LMI);
fr_hard_header(&skb, LMI_CISCO_DLCI);
} else {
- skb->protocol = cpu_to_be16(NLPID_CCITT_ANSI_LMI);
fr_hard_header(&skb, LMI_CCITT_ANSI_DLCI);
}
data = skb_tail_pointer(skb);
diff --git a/drivers/net/wireless/ath/ath10k/htt_rx.c b/drivers/net/wireless/ath/ath10k/htt_rx.c
index fd276e54bb7c..4358d175f954 100644
--- a/drivers/net/wireless/ath/ath10k/htt_rx.c
+++ b/drivers/net/wireless/ath/ath10k/htt_rx.c
@@ -622,6 +622,7 @@ static void ath10k_htt_rx_h_rates(struct ath10k *ar,
u8 preamble = 0;
u8 group_id;
u32 info1, info2, info3;
+ u32 stbc, nsts_su;

info1 = __le32_to_cpu(rxd->ppdu_start.info1);
info2 = __le32_to_cpu(rxd->ppdu_start.info2);
@@ -666,11 +667,16 @@ static void ath10k_htt_rx_h_rates(struct ath10k *ar,
*/
bw = info2 & 3;
sgi = info3 & 1;
+ stbc = (info2 >> 3) & 1;
group_id = (info2 >> 4) & 0x3F;

if (GROUP_ID_IS_SU_MIMO(group_id)) {
mcs = (info3 >> 4) & 0x0F;
- nss = ((info2 >> 10) & 0x07) + 1;
+ nsts_su = ((info2 >> 10) & 0x07);
+ if (stbc)
+ nss = (nsts_su >> 2) + 1;
+ else
+ nss = (nsts_su + 1);
} else {
/* Hardware doesn't decode VHT-SIG-B into Rx descriptor
* so it's impossible to decode MCS. Also since
diff --git a/drivers/net/wireless/ath/ath10k/sdio.c b/drivers/net/wireless/ath/ath10k/sdio.c
index fef313099e08..34e8b4344f40 100644
--- a/drivers/net/wireless/ath/ath10k/sdio.c
+++ b/drivers/net/wireless/ath/ath10k/sdio.c
@@ -561,6 +561,10 @@ static int ath10k_sdio_mbox_rx_alloc(struct ath10k *ar,
le16_to_cpu(htc_hdr->len),
ATH10K_HTC_MBOX_MAX_PAYLOAD_LENGTH);
ret = -ENOMEM;
+
+ queue_work(ar->workqueue, &ar->restart_work);
+ ath10k_warn(ar, "exceeds length, start recovery\n");
+
goto err;
}

diff --git a/drivers/net/wireless/intersil/p54/p54pci.c b/drivers/net/wireless/intersil/p54/p54pci.c
index 57ad56435dda..8bc0286b4f8c 100644
--- a/drivers/net/wireless/intersil/p54/p54pci.c
+++ b/drivers/net/wireless/intersil/p54/p54pci.c
@@ -332,10 +332,12 @@ static void p54p_tx(struct ieee80211_hw *dev, struct sk_buff *skb)
struct p54p_desc *desc;
dma_addr_t mapping;
u32 idx, i;
+ __le32 device_addr;

spin_lock_irqsave(&priv->lock, flags);
idx = le32_to_cpu(ring_control->host_idx[1]);
i = idx % ARRAY_SIZE(ring_control->tx_data);
+ device_addr = ((struct p54_hdr *)skb->data)->req_id;

mapping = pci_map_single(priv->pdev, skb->data, skb->len,
PCI_DMA_TODEVICE);
@@ -349,7 +351,7 @@ static void p54p_tx(struct ieee80211_hw *dev, struct sk_buff *skb)

desc = &ring_control->tx_data[i];
desc->host_addr = cpu_to_le32(mapping);
- desc->device_addr = ((struct p54_hdr *)skb->data)->req_id;
+ desc->device_addr = device_addr;
desc->len = cpu_to_le16(skb->len);
desc->flags = 0;

diff --git a/drivers/nvme/host/rdma.c b/drivers/nvme/host/rdma.c
index c91bfd839cab..564e457f1345 100644
--- a/drivers/nvme/host/rdma.c
+++ b/drivers/nvme/host/rdma.c
@@ -1545,7 +1545,6 @@ static int nvme_rdma_cm_handler(struct rdma_cm_id *cm_id,
complete(&queue->cm_done);
return 0;
case RDMA_CM_EVENT_REJECTED:
- nvme_rdma_destroy_queue_ib(queue);
cm_error = nvme_rdma_conn_rejected(queue, ev);
break;
case RDMA_CM_EVENT_ROUTE_ERROR:
diff --git a/drivers/power/supply/test_power.c b/drivers/power/supply/test_power.c
index 57246cdbd042..925abec45380 100644
--- a/drivers/power/supply/test_power.c
+++ b/drivers/power/supply/test_power.c
@@ -344,6 +344,7 @@ static int param_set_ac_online(const char *key, const struct kernel_param *kp)
static int param_get_ac_online(char *buffer, const struct kernel_param *kp)
{
strcpy(buffer, map_get_key(map_ac_online, ac_online, "unknown"));
+ strcat(buffer, "\n");
return strlen(buffer);
}

@@ -357,6 +358,7 @@ static int param_set_usb_online(const char *key, const struct kernel_param *kp)
static int param_get_usb_online(char *buffer, const struct kernel_param *kp)
{
strcpy(buffer, map_get_key(map_ac_online, usb_online, "unknown"));
+ strcat(buffer, "\n");
return strlen(buffer);
}

@@ -371,6 +373,7 @@ static int param_set_battery_status(const char *key,
static int param_get_battery_status(char *buffer, const struct kernel_param *kp)
{
strcpy(buffer, map_get_key(map_status, battery_status, "unknown"));
+ strcat(buffer, "\n");
return strlen(buffer);
}

@@ -385,6 +388,7 @@ static int param_set_battery_health(const char *key,
static int param_get_battery_health(char *buffer, const struct kernel_param *kp)
{
strcpy(buffer, map_get_key(map_health, battery_health, "unknown"));
+ strcat(buffer, "\n");
return strlen(buffer);
}

@@ -400,6 +404,7 @@ static int param_get_battery_present(char *buffer,
const struct kernel_param *kp)
{
strcpy(buffer, map_get_key(map_present, battery_present, "unknown"));
+ strcat(buffer, "\n");
return strlen(buffer);
}

@@ -417,6 +422,7 @@ static int param_get_battery_technology(char *buffer,
{
strcpy(buffer,
map_get_key(map_technology, battery_technology, "unknown"));
+ strcat(buffer, "\n");
return strlen(buffer);
}

diff --git a/drivers/rtc/rtc-rx8010.c b/drivers/rtc/rtc-rx8010.c
index 1ed3403ff8ac..5192297bcfdb 100644
--- a/drivers/rtc/rtc-rx8010.c
+++ b/drivers/rtc/rtc-rx8010.c
@@ -429,16 +429,26 @@ static int rx8010_ioctl(struct device *dev, unsigned int cmd, unsigned long arg)
}
}

-static struct rtc_class_ops rx8010_rtc_ops = {
+static const struct rtc_class_ops rx8010_rtc_ops_default = {
.read_time = rx8010_get_time,
.set_time = rx8010_set_time,
.ioctl = rx8010_ioctl,
};

+static const struct rtc_class_ops rx8010_rtc_ops_alarm = {
+ .read_time = rx8010_get_time,
+ .set_time = rx8010_set_time,
+ .ioctl = rx8010_ioctl,
+ .read_alarm = rx8010_read_alarm,
+ .set_alarm = rx8010_set_alarm,
+ .alarm_irq_enable = rx8010_alarm_irq_enable,
+};
+
static int rx8010_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent);
+ const struct rtc_class_ops *rtc_ops;
struct rx8010_data *rx8010;
int err = 0;

@@ -469,16 +479,16 @@ static int rx8010_probe(struct i2c_client *client,

if (err) {
dev_err(&client->dev, "unable to request IRQ\n");
- client->irq = 0;
- } else {
- rx8010_rtc_ops.read_alarm = rx8010_read_alarm;
- rx8010_rtc_ops.set_alarm = rx8010_set_alarm;
- rx8010_rtc_ops.alarm_irq_enable = rx8010_alarm_irq_enable;
+ return err;
}
+
+ rtc_ops = &rx8010_rtc_ops_alarm;
+ } else {
+ rtc_ops = &rx8010_rtc_ops_default;
}

rx8010->rtc = devm_rtc_device_register(&client->dev, client->name,
- &rx8010_rtc_ops, THIS_MODULE);
+ rtc_ops, THIS_MODULE);

if (IS_ERR(rx8010->rtc)) {
dev_err(&client->dev, "unable to register the class device\n");
diff --git a/drivers/staging/comedi/drivers/cb_pcidas.c b/drivers/staging/comedi/drivers/cb_pcidas.c
index 3cd008acb657..3ea15bb0e56e 100644
--- a/drivers/staging/comedi/drivers/cb_pcidas.c
+++ b/drivers/staging/comedi/drivers/cb_pcidas.c
@@ -1351,6 +1351,7 @@ static int cb_pcidas_auto_attach(struct comedi_device *dev,
if (dev->irq && board->has_ao_fifo) {
dev->write_subdev = s;
s->subdev_flags |= SDF_CMD_WRITE;
+ s->len_chanlist = s->n_chan;
s->do_cmdtest = cb_pcidas_ao_cmdtest;
s->do_cmd = cb_pcidas_ao_cmd;
s->cancel = cb_pcidas_ao_cancel;
diff --git a/drivers/staging/fsl-mc/bus/mc-io.c b/drivers/staging/fsl-mc/bus/mc-io.c
index f65c23ce83f1..deec2d04c2dd 100644
--- a/drivers/staging/fsl-mc/bus/mc-io.c
+++ b/drivers/staging/fsl-mc/bus/mc-io.c
@@ -166,7 +166,12 @@ int __must_check fsl_create_mc_io(struct device *dev,
*/
void fsl_destroy_mc_io(struct fsl_mc_io *mc_io)
{
- struct fsl_mc_device *dpmcp_dev = mc_io->dpmcp_dev;
+ struct fsl_mc_device *dpmcp_dev;
+
+ if (!mc_io)
+ return;
+
+ dpmcp_dev = mc_io->dpmcp_dev;

if (dpmcp_dev)
fsl_mc_io_unset_dpmcp(mc_io);
diff --git a/drivers/staging/octeon/ethernet-mdio.c b/drivers/staging/octeon/ethernet-mdio.c
index 691e4a51ace4..99f45012bc3f 100644
--- a/drivers/staging/octeon/ethernet-mdio.c
+++ b/drivers/staging/octeon/ethernet-mdio.c
@@ -155,12 +155,6 @@ int cvm_oct_phy_setup_device(struct net_device *dev)

phy_node = of_parse_phandle(priv->of_node, "phy-handle", 0);
if (!phy_node && of_phy_is_fixed_link(priv->of_node)) {
- int rc;
-
- rc = of_phy_register_fixed_link(priv->of_node);
- if (rc)
- return rc;
-
phy_node = of_node_get(priv->of_node);
}
if (!phy_node)
diff --git a/drivers/staging/octeon/ethernet-rx.c b/drivers/staging/octeon/ethernet-rx.c
index 1a44291318ee..c5a8348c1df0 100644
--- a/drivers/staging/octeon/ethernet-rx.c
+++ b/drivers/staging/octeon/ethernet-rx.c
@@ -83,15 +83,17 @@ static inline int cvm_oct_check_rcv_error(cvmx_wqe_t *work)
else
port = work->word1.cn38xx.ipprt;

- if ((work->word2.snoip.err_code == 10) && (work->word1.len <= 64)) {
+ if ((work->word2.snoip.err_code == 10) && (work->word1.len <= 64))
/*
* Ignore length errors on min size packets. Some
* equipment incorrectly pads packets to 64+4FCS
* instead of 60+4FCS. Note these packets still get
* counted as frame errors.
*/
- } else if (work->word2.snoip.err_code == 5 ||
- work->word2.snoip.err_code == 7) {
+ return 0;
+
+ if (work->word2.snoip.err_code == 5 ||
+ work->word2.snoip.err_code == 7) {
/*
* We received a packet with either an alignment error
* or a FCS error. This may be signalling that we are
@@ -122,7 +124,10 @@ static inline int cvm_oct_check_rcv_error(cvmx_wqe_t *work)
/* Port received 0xd5 preamble */
work->packet_ptr.s.addr += i + 1;
work->word1.len -= i + 5;
- } else if ((*ptr & 0xf) == 0xd) {
+ return 0;
+ }
+
+ if ((*ptr & 0xf) == 0xd) {
/* Port received 0xd preamble */
work->packet_ptr.s.addr += i;
work->word1.len -= i + 4;
@@ -132,21 +137,20 @@ static inline int cvm_oct_check_rcv_error(cvmx_wqe_t *work)
((*(ptr + 1) & 0xf) << 4);
ptr++;
}
- } else {
- printk_ratelimited("Port %d unknown preamble, packet dropped\n",
- port);
- cvm_oct_free_work(work);
- return 1;
+ return 0;
}
+
+ printk_ratelimited("Port %d unknown preamble, packet dropped\n",
+ port);
+ cvm_oct_free_work(work);
+ return 1;
}
- } else {
- printk_ratelimited("Port %d receive error code %d, packet dropped\n",
- port, work->word2.snoip.err_code);
- cvm_oct_free_work(work);
- return 1;
}

- return 0;
+ printk_ratelimited("Port %d receive error code %d, packet dropped\n",
+ port, work->word2.snoip.err_code);
+ cvm_oct_free_work(work);
+ return 1;
}

static void copy_segments_to_skb(cvmx_wqe_t *work, struct sk_buff *skb)
diff --git a/drivers/staging/octeon/ethernet.c b/drivers/staging/octeon/ethernet.c
index 429e24adfcf5..968b832811a9 100644
--- a/drivers/staging/octeon/ethernet.c
+++ b/drivers/staging/octeon/ethernet.c
@@ -16,6 +16,7 @@
#include <linux/phy.h>
#include <linux/slab.h>
#include <linux/interrupt.h>
+#include <linux/of_mdio.h>
#include <linux/of_net.h>
#include <linux/if_ether.h>
#include <linux/if_vlan.h>
@@ -878,6 +879,14 @@ static int cvm_oct_probe(struct platform_device *pdev)
break;
}

+ if (priv->of_node && of_phy_is_fixed_link(priv->of_node)) {
+ if (of_phy_register_fixed_link(priv->of_node)) {
+ netdev_err(dev, "Failed to register fixed link for interface %d, port %d\n",
+ interface, priv->port);
+ dev->netdev_ops = NULL;
+ }
+ }
+
if (!dev->netdev_ops) {
free_netdev(dev);
} else if (register_netdev(dev) < 0) {
diff --git a/drivers/staging/typec/pd.h b/drivers/staging/typec/pd.h
index 30b32ad72acd..a18ab898fa66 100644
--- a/drivers/staging/typec/pd.h
+++ b/drivers/staging/typec/pd.h
@@ -280,6 +280,7 @@ static inline unsigned int rdo_max_power(u32 rdo)
#define PD_T_ERROR_RECOVERY 100 /* minimum 25 is insufficient */
#define PD_T_SRCSWAPSTDBY 625 /* Maximum of 650ms */
#define PD_T_NEWSRC 250 /* Maximum of 275ms */
+#define PD_T_SWAP_SRC_START 20 /* Minimum of 20ms */

#define PD_T_DRP_TRY 100 /* 75 - 150 ms */
#define PD_T_DRP_TRYWAIT 600 /* 400 - 800 ms */
diff --git a/drivers/staging/typec/tcpm.c b/drivers/staging/typec/tcpm.c
index f237e31926f4..686037a498c1 100644
--- a/drivers/staging/typec/tcpm.c
+++ b/drivers/staging/typec/tcpm.c
@@ -2741,7 +2741,7 @@ static void run_state_machine(struct tcpm_port *port)
*/
tcpm_set_pwr_role(port, TYPEC_SOURCE);
tcpm_pd_send_control(port, PD_CTRL_PS_RDY);
- tcpm_set_state(port, SRC_STARTUP, 0);
+ tcpm_set_state(port, SRC_STARTUP, PD_T_SWAP_SRC_START);
break;

case VCONN_SWAP_ACCEPT:
diff --git a/drivers/tty/vt/keyboard.c b/drivers/tty/vt/keyboard.c
index 610cb8338d53..aff07929e8e6 100644
--- a/drivers/tty/vt/keyboard.c
+++ b/drivers/tty/vt/keyboard.c
@@ -713,8 +713,13 @@ static void k_fn(struct vc_data *vc, unsigned char value, char up_flag)
return;

if ((unsigned)value < ARRAY_SIZE(func_table)) {
+ unsigned long flags;
+
+ spin_lock_irqsave(&func_buf_lock, flags);
if (func_table[value])
puts_queue(vc, func_table[value]);
+ spin_unlock_irqrestore(&func_buf_lock, flags);
+
} else
pr_err("k_fn called with value=%d\n", value);
}
@@ -1959,13 +1964,11 @@ int vt_do_kdsk_ioctl(int cmd, struct kbentry __user *user_kbe, int perm,
#undef s
#undef v

-/* FIXME: This one needs untangling and locking */
+/* FIXME: This one needs untangling */
int vt_do_kdgkb_ioctl(int cmd, struct kbsentry __user *user_kdgkb, int perm)
{
struct kbsentry *kbs;
- char *p;
u_char *q;
- u_char __user *up;
int sz, fnw_sz;
int delta;
char *first_free, *fj, *fnw;
@@ -1991,23 +1994,19 @@ int vt_do_kdgkb_ioctl(int cmd, struct kbsentry __user *user_kdgkb, int perm)
i = kbs->kb_func;

switch (cmd) {
- case KDGKBSENT:
- sz = sizeof(kbs->kb_string) - 1; /* sz should have been
- a struct member */
- up = user_kdgkb->kb_string;
- p = func_table[i];
- if(p)
- for ( ; *p && sz; p++, sz--)
- if (put_user(*p, up++)) {
- ret = -EFAULT;
- goto reterr;
- }
- if (put_user('\0', up)) {
- ret = -EFAULT;
- goto reterr;
- }
- kfree(kbs);
- return ((p && *p) ? -EOVERFLOW : 0);
+ case KDGKBSENT: {
+ /* size should have been a struct member */
+ ssize_t len = sizeof(user_kdgkb->kb_string);
+
+ spin_lock_irqsave(&func_buf_lock, flags);
+ len = strlcpy(kbs->kb_string, func_table[i] ? : "", len);
+ spin_unlock_irqrestore(&func_buf_lock, flags);
+
+ ret = copy_to_user(user_kdgkb->kb_string, kbs->kb_string,
+ len + 1) ? -EFAULT : 0;
+
+ goto reterr;
+ }
case KDSKBSENT:
if (!perm) {
ret = -EPERM;
diff --git a/drivers/tty/vt/vt_ioctl.c b/drivers/tty/vt/vt_ioctl.c
index 1184105b2a17..416de29b133a 100644
--- a/drivers/tty/vt/vt_ioctl.c
+++ b/drivers/tty/vt/vt_ioctl.c
@@ -244,7 +244,7 @@ int vt_waitactive(int n)

static inline int
-do_fontx_ioctl(int cmd, struct consolefontdesc __user *user_cfd, int perm, struct console_font_op *op)
+do_fontx_ioctl(struct vc_data *vc, int cmd, struct consolefontdesc __user *user_cfd, int perm, struct console_font_op *op)
{
struct consolefontdesc cfdarg;
int i;
@@ -262,15 +262,16 @@ do_fontx_ioctl(int cmd, struct consolefontdesc __user *user_cfd, int perm, struc
op->height = cfdarg.charheight;
op->charcount = cfdarg.charcount;
op->data = cfdarg.chardata;
- return con_font_op(vc_cons[fg_console].d, op);
- case GIO_FONTX: {
+ return con_font_op(vc, op);
+
+ case GIO_FONTX:
op->op = KD_FONT_OP_GET;
op->flags = KD_FONT_FLAG_OLD;
op->width = 8;
op->height = cfdarg.charheight;
op->charcount = cfdarg.charcount;
op->data = cfdarg.chardata;
- i = con_font_op(vc_cons[fg_console].d, op);
+ i = con_font_op(vc, op);
if (i)
return i;
cfdarg.charheight = op->height;
@@ -278,7 +279,6 @@ do_fontx_ioctl(int cmd, struct consolefontdesc __user *user_cfd, int perm, struc
if (copy_to_user(user_cfd, &cfdarg, sizeof(struct consolefontdesc)))
return -EFAULT;
return 0;
- }
}
return -EINVAL;
}
@@ -924,7 +924,7 @@ int vt_ioctl(struct tty_struct *tty,
op.height = 0;
op.charcount = 256;
op.data = up;
- ret = con_font_op(vc_cons[fg_console].d, &op);
+ ret = con_font_op(vc, &op);
break;
}

@@ -935,7 +935,7 @@ int vt_ioctl(struct tty_struct *tty,
op.height = 32;
op.charcount = 256;
op.data = up;
- ret = con_font_op(vc_cons[fg_console].d, &op);
+ ret = con_font_op(vc, &op);
break;
}

@@ -952,7 +952,7 @@ int vt_ioctl(struct tty_struct *tty,

case PIO_FONTX:
case GIO_FONTX:
- ret = do_fontx_ioctl(cmd, up, perm, &op);
+ ret = do_fontx_ioctl(vc, cmd, up, perm, &op);
break;

case PIO_FONTRESET:
@@ -969,11 +969,11 @@ int vt_ioctl(struct tty_struct *tty,
{
op.op = KD_FONT_OP_SET_DEFAULT;
op.data = NULL;
- ret = con_font_op(vc_cons[fg_console].d, &op);
+ ret = con_font_op(vc, &op);
if (ret)
break;
console_lock();
- con_set_default_unimap(vc_cons[fg_console].d);
+ con_set_default_unimap(vc);
console_unlock();
break;
}
@@ -1100,8 +1100,9 @@ struct compat_consolefontdesc {
};

static inline int
-compat_fontx_ioctl(int cmd, struct compat_consolefontdesc __user *user_cfd,
- int perm, struct console_font_op *op)
+compat_fontx_ioctl(struct vc_data *vc, int cmd,
+ struct compat_consolefontdesc __user *user_cfd,
+ int perm, struct console_font_op *op)
{
struct compat_consolefontdesc cfdarg;
int i;
@@ -1119,7 +1120,8 @@ compat_fontx_ioctl(int cmd, struct compat_consolefontdesc __user *user_cfd,
op->height = cfdarg.charheight;
op->charcount = cfdarg.charcount;
op->data = compat_ptr(cfdarg.chardata);
- return con_font_op(vc_cons[fg_console].d, op);
+ return con_font_op(vc, op);
+
case GIO_FONTX:
op->op = KD_FONT_OP_GET;
op->flags = KD_FONT_FLAG_OLD;
@@ -1127,7 +1129,7 @@ compat_fontx_ioctl(int cmd, struct compat_consolefontdesc __user *user_cfd,
op->height = cfdarg.charheight;
op->charcount = cfdarg.charcount;
op->data = compat_ptr(cfdarg.chardata);
- i = con_font_op(vc_cons[fg_console].d, op);
+ i = con_font_op(vc, op);
if (i)
return i;
cfdarg.charheight = op->height;
@@ -1218,7 +1220,7 @@ long vt_compat_ioctl(struct tty_struct *tty,
*/
case PIO_FONTX:
case GIO_FONTX:
- ret = compat_fontx_ioctl(cmd, up, perm, &op);
+ ret = compat_fontx_ioctl(vc, cmd, up, perm, &op);
break;

case KDFONTOP:
diff --git a/drivers/uio/uio.c b/drivers/uio/uio.c
index 7c18536a3742..4fc94b5e15ef 100644
--- a/drivers/uio/uio.c
+++ b/drivers/uio/uio.c
@@ -1009,8 +1009,6 @@ void uio_unregister_device(struct uio_info *info)

idev = info->uio_dev;

- uio_free_minor(idev);
-
mutex_lock(&idev->info_lock);
uio_dev_del_attributes(idev);

@@ -1022,6 +1020,8 @@ void uio_unregister_device(struct uio_info *info)

device_unregister(&idev->dev);

+ uio_free_minor(idev);
+
return;
}
EXPORT_SYMBOL_GPL(uio_unregister_device);
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index 8129040a3d0f..d07033d99c81 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -520,6 +520,7 @@ static void acm_read_bulk_callback(struct urb *urb)
"%s - cooling babbling device\n", __func__);
usb_mark_last_busy(acm->dev);
set_bit(rb->index, &acm->urbs_in_error_delay);
+ set_bit(ACM_ERROR_DELAY, &acm->flags);
cooldown = true;
break;
default:
@@ -545,7 +546,7 @@ static void acm_read_bulk_callback(struct urb *urb)

if (stopped || stalled || cooldown) {
if (stalled)
- schedule_work(&acm->work);
+ schedule_delayed_work(&acm->dwork, 0);
else if (cooldown)
schedule_delayed_work(&acm->dwork, HZ / 2);
return;
@@ -580,13 +581,13 @@ static void acm_write_bulk(struct urb *urb)
acm_write_done(acm, wb);
spin_unlock_irqrestore(&acm->write_lock, flags);
set_bit(EVENT_TTY_WAKEUP, &acm->flags);
- schedule_work(&acm->work);
+ schedule_delayed_work(&acm->dwork, 0);
}

static void acm_softint(struct work_struct *work)
{
int i;
- struct acm *acm = container_of(work, struct acm, work);
+ struct acm *acm = container_of(work, struct acm, dwork.work);

if (test_bit(EVENT_RX_STALL, &acm->flags)) {
smp_mb(); /* against acm_suspend() */
@@ -602,7 +603,7 @@ static void acm_softint(struct work_struct *work)
if (test_and_clear_bit(ACM_ERROR_DELAY, &acm->flags)) {
for (i = 0; i < acm->rx_buflimit; i++)
if (test_and_clear_bit(i, &acm->urbs_in_error_delay))
- acm_submit_read_urb(acm, i, GFP_NOIO);
+ acm_submit_read_urb(acm, i, GFP_KERNEL);
}

if (test_and_clear_bit(EVENT_TTY_WAKEUP, &acm->flags))
@@ -1405,7 +1406,6 @@ static int acm_probe(struct usb_interface *intf,
acm->ctrlsize = ctrlsize;
acm->readsize = readsize;
acm->rx_buflimit = num_rx_buf;
- INIT_WORK(&acm->work, acm_softint);
INIT_DELAYED_WORK(&acm->dwork, acm_softint);
init_waitqueue_head(&acm->wioctl);
spin_lock_init(&acm->write_lock);
@@ -1619,7 +1619,6 @@ static void acm_disconnect(struct usb_interface *intf)
}

acm_kill_urbs(acm);
- cancel_work_sync(&acm->work);
cancel_delayed_work_sync(&acm->dwork);

tty_unregister_device(acm_tty_driver, acm->minor);
@@ -1662,7 +1661,6 @@ static int acm_suspend(struct usb_interface *intf, pm_message_t message)
return 0;

acm_kill_urbs(acm);
- cancel_work_sync(&acm->work);
cancel_delayed_work_sync(&acm->dwork);
acm->urbs_in_error_delay = 0;

diff --git a/drivers/usb/class/cdc-acm.h b/drivers/usb/class/cdc-acm.h
index 30380d28a504..d8f8651425c4 100644
--- a/drivers/usb/class/cdc-acm.h
+++ b/drivers/usb/class/cdc-acm.h
@@ -111,8 +111,7 @@ struct acm {
# define ACM_ERROR_DELAY 3
unsigned long urbs_in_error_delay; /* these need to be restarted after a delay */
struct usb_cdc_line_coding line; /* bits, stop, parity */
- struct work_struct work; /* work queue entry for various purposes*/
- struct delayed_work dwork; /* for cool downs needed in error recovery */
+ struct delayed_work dwork; /* work queue entry for various purposes */
unsigned int ctrlin; /* input control lines (DCD, DSR, RI, break, overruns) */
unsigned int ctrlout; /* output control lines (DTR, RTS) */
struct async_icount iocount; /* counters for control line changes */
diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index 010201dbd029..f3fca4537d25 100644
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -1287,6 +1287,17 @@ static int dwc3_probe(struct platform_device *pdev)

err5:
dwc3_event_buffers_cleanup(dwc);
+
+ usb_phy_shutdown(dwc->usb2_phy);
+ usb_phy_shutdown(dwc->usb3_phy);
+ phy_exit(dwc->usb2_generic_phy);
+ phy_exit(dwc->usb3_generic_phy);
+
+ usb_phy_set_suspend(dwc->usb2_phy, 1);
+ usb_phy_set_suspend(dwc->usb3_phy, 1);
+ phy_power_off(dwc->usb2_generic_phy);
+ phy_power_off(dwc->usb3_generic_phy);
+
dwc3_ulpi_exit(dwc);

err4:
@@ -1332,9 +1343,9 @@ static int dwc3_remove(struct platform_device *pdev)
dwc3_core_exit(dwc);
dwc3_ulpi_exit(dwc);

- pm_runtime_put_sync(&pdev->dev);
- pm_runtime_allow(&pdev->dev);
pm_runtime_disable(&pdev->dev);
+ pm_runtime_put_noidle(&pdev->dev);
+ pm_runtime_set_suspended(&pdev->dev);

dwc3_free_event_buffers(dwc);
dwc3_free_scratch_buffers(dwc);
diff --git a/drivers/usb/dwc3/ep0.c b/drivers/usb/dwc3/ep0.c
index cb50806d2459..f0d37a2fb66b 100644
--- a/drivers/usb/dwc3/ep0.c
+++ b/drivers/usb/dwc3/ep0.c
@@ -967,12 +967,16 @@ static void dwc3_ep0_xfer_complete(struct dwc3 *dwc,
static void __dwc3_ep0_do_control_data(struct dwc3 *dwc,
struct dwc3_ep *dep, struct dwc3_request *req)
{
+ unsigned int trb_length = 0;
int ret;

req->direction = !!dep->number;

if (req->request.length == 0) {
- dwc3_ep0_prepare_one_trb(dep, dwc->ep0_trb_addr, 0,
+ if (!req->direction)
+ trb_length = dep->endpoint.maxpacket;
+
+ dwc3_ep0_prepare_one_trb(dep, dwc->bounce_addr, trb_length,
DWC3_TRBCTL_CONTROL_DATA, false);
ret = dwc3_ep0_start_trans(dep);
} else if (!IS_ALIGNED(req->request.length, dep->endpoint.maxpacket)
@@ -1024,9 +1028,12 @@ static void __dwc3_ep0_do_control_data(struct dwc3 *dwc,

req->trb = &dwc->ep0_trb[dep->trb_enqueue - 1];

+ if (!req->direction)
+ trb_length = dep->endpoint.maxpacket;
+
/* Now prepare one extra TRB to align transfer size */
dwc3_ep0_prepare_one_trb(dep, dwc->bounce_addr,
- 0, DWC3_TRBCTL_CONTROL_DATA,
+ trb_length, DWC3_TRBCTL_CONTROL_DATA,
false);
ret = dwc3_ep0_start_trans(dep);
} else {
diff --git a/drivers/usb/host/fsl-mph-dr-of.c b/drivers/usb/host/fsl-mph-dr-of.c
index ba557cdba8ef..967bd036e13e 100644
--- a/drivers/usb/host/fsl-mph-dr-of.c
+++ b/drivers/usb/host/fsl-mph-dr-of.c
@@ -98,10 +98,13 @@ static struct platform_device *fsl_usb2_device_register(

pdev->dev.coherent_dma_mask = ofdev->dev.coherent_dma_mask;

- if (!pdev->dev.dma_mask)
+ if (!pdev->dev.dma_mask) {
pdev->dev.dma_mask = &ofdev->dev.coherent_dma_mask;
- else
- dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
+ } else {
+ retval = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
+ if (retval)
+ goto error;
+ }

retval = platform_device_add_data(pdev, pdata, sizeof(*pdata));
if (retval)
diff --git a/drivers/usb/misc/adutux.c b/drivers/usb/misc/adutux.c
index 45390045c75d..852f768ef77b 100644
--- a/drivers/usb/misc/adutux.c
+++ b/drivers/usb/misc/adutux.c
@@ -209,6 +209,7 @@ static void adu_interrupt_out_callback(struct urb *urb)

if (status != 0) {
if ((status != -ENOENT) &&
+ (status != -ESHUTDOWN) &&
(status != -ECONNRESET)) {
dev_dbg(&dev->udev->dev,
"%s :nonzero status received: %d\n", __func__,
diff --git a/drivers/vhost/vringh.c b/drivers/vhost/vringh.c
index bb8971f2a634..1e2e01270be9 100644
--- a/drivers/vhost/vringh.c
+++ b/drivers/vhost/vringh.c
@@ -273,13 +273,14 @@ __vringh_iov(struct vringh *vrh, u16 i,
desc_max = vrh->vring.num;
up_next = -1;

+ /* You must want something! */
+ if (WARN_ON(!riov && !wiov))
+ return -EINVAL;
+
if (riov)
riov->i = riov->used = 0;
- else if (wiov)
+ if (wiov)
wiov->i = wiov->used = 0;
- else
- /* You must want something! */
- BUG();

for (;;) {
void *addr;
diff --git a/drivers/video/fbdev/pvr2fb.c b/drivers/video/fbdev/pvr2fb.c
index 867c5218968f..426e79061bc8 100644
--- a/drivers/video/fbdev/pvr2fb.c
+++ b/drivers/video/fbdev/pvr2fb.c
@@ -1029,6 +1029,8 @@ static int __init pvr2fb_setup(char *options)
if (!options || !*options)
return 0;

+ cable_arg[0] = output_arg[0] = 0;
+
while ((this_opt = strsep(&options, ","))) {
if (!*this_opt)
continue;
diff --git a/drivers/w1/masters/mxc_w1.c b/drivers/w1/masters/mxc_w1.c
index 8851d441e5fd..b972c55f4fe0 100644
--- a/drivers/w1/masters/mxc_w1.c
+++ b/drivers/w1/masters/mxc_w1.c
@@ -15,7 +15,7 @@
#include <linux/clk.h>
#include <linux/delay.h>
#include <linux/io.h>
-#include <linux/jiffies.h>
+#include <linux/ktime.h>
#include <linux/module.h>
#include <linux/platform_device.h>

@@ -47,12 +47,12 @@ struct mxc_w1_device {
static u8 mxc_w1_ds2_reset_bus(void *data)
{
struct mxc_w1_device *dev = data;
- unsigned long timeout;
+ ktime_t timeout;

writeb(MXC_W1_CONTROL_RPP, dev->regs + MXC_W1_CONTROL);

/* Wait for reset sequence 511+512us, use 1500us for sure */
- timeout = jiffies + usecs_to_jiffies(1500);
+ timeout = ktime_add_us(ktime_get(), 1500);

udelay(511 + 512);

@@ -62,7 +62,7 @@ static u8 mxc_w1_ds2_reset_bus(void *data)
/* PST bit is valid after the RPP bit is self-cleared */
if (!(ctrl & MXC_W1_CONTROL_RPP))
return !(ctrl & MXC_W1_CONTROL_PST);
- } while (time_is_after_jiffies(timeout));
+ } while (ktime_before(ktime_get(), timeout));

return 1;
}
@@ -75,12 +75,12 @@ static u8 mxc_w1_ds2_reset_bus(void *data)
static u8 mxc_w1_ds2_touch_bit(void *data, u8 bit)
{
struct mxc_w1_device *dev = data;
- unsigned long timeout;
+ ktime_t timeout;

writeb(MXC_W1_CONTROL_WR(bit), dev->regs + MXC_W1_CONTROL);

/* Wait for read/write bit (60us, Max 120us), use 200us for sure */
- timeout = jiffies + usecs_to_jiffies(200);
+ timeout = ktime_add_us(ktime_get(), 200);

udelay(60);

@@ -90,7 +90,7 @@ static u8 mxc_w1_ds2_touch_bit(void *data, u8 bit)
/* RDST bit is valid after the WR1/RD bit is self-cleared */
if (!(ctrl & MXC_W1_CONTROL_WR(bit)))
return !!(ctrl & MXC_W1_CONTROL_RDST);
- } while (time_is_after_jiffies(timeout));
+ } while (ktime_before(ktime_get(), timeout));

return 0;
}
diff --git a/drivers/watchdog/rdc321x_wdt.c b/drivers/watchdog/rdc321x_wdt.c
index 47a8f1b1087d..4568af9a165b 100644
--- a/drivers/watchdog/rdc321x_wdt.c
+++ b/drivers/watchdog/rdc321x_wdt.c
@@ -244,6 +244,8 @@ static int rdc321x_wdt_probe(struct platform_device *pdev)

rdc321x_wdt_device.sb_pdev = pdata->sb_pdev;
rdc321x_wdt_device.base_reg = r->start;
+ rdc321x_wdt_device.queue = 0;
+ rdc321x_wdt_device.default_ticks = ticks;

err = misc_register(&rdc321x_wdt_misc);
if (err < 0) {
@@ -258,14 +260,11 @@ static int rdc321x_wdt_probe(struct platform_device *pdev)
rdc321x_wdt_device.base_reg, RDC_WDT_RST);

init_completion(&rdc321x_wdt_device.stop);
- rdc321x_wdt_device.queue = 0;

clear_bit(0, &rdc321x_wdt_device.inuse);

setup_timer(&rdc321x_wdt_device.timer, rdc321x_wdt_trigger, 0);

- rdc321x_wdt_device.default_ticks = ticks;
-
dev_info(&pdev->dev, "watchdog init success\n");

return 0;
diff --git a/fs/9p/vfs_file.c b/fs/9p/vfs_file.c
index 2651192f0166..13e126f57851 100644
--- a/fs/9p/vfs_file.c
+++ b/fs/9p/vfs_file.c
@@ -624,9 +624,9 @@ static void v9fs_mmap_vm_close(struct vm_area_struct *vma)
struct writeback_control wbc = {
.nr_to_write = LONG_MAX,
.sync_mode = WB_SYNC_ALL,
- .range_start = vma->vm_pgoff * PAGE_SIZE,
+ .range_start = (loff_t)vma->vm_pgoff * PAGE_SIZE,
/* absolute end, byte at end included */
- .range_end = vma->vm_pgoff * PAGE_SIZE +
+ .range_end = (loff_t)vma->vm_pgoff * PAGE_SIZE +
(vma->vm_end - vma->vm_start - 1),
};

diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c
index cf1e8ba50f6b..7ff0eb63e619 100644
--- a/fs/btrfs/ctree.c
+++ b/fs/btrfs/ctree.c
@@ -1130,6 +1130,8 @@ static noinline int __btrfs_cow_block(struct btrfs_trans_handle *trans,

ret = update_ref_for_cow(trans, root, buf, cow, &last_ref);
if (ret) {
+ btrfs_tree_unlock(cow);
+ free_extent_buffer(cow);
btrfs_abort_transaction(trans, ret);
return ret;
}
@@ -1137,6 +1139,8 @@ static noinline int __btrfs_cow_block(struct btrfs_trans_handle *trans,
if (test_bit(BTRFS_ROOT_REF_COWS, &root->state)) {
ret = btrfs_reloc_cow_block(trans, root, buf, cow);
if (ret) {
+ btrfs_tree_unlock(cow);
+ free_extent_buffer(cow);
btrfs_abort_transaction(trans, ret);
return ret;
}
@@ -1168,6 +1172,8 @@ static noinline int __btrfs_cow_block(struct btrfs_trans_handle *trans,
if (last_ref) {
ret = tree_mod_log_free_eb(fs_info, buf);
if (ret) {
+ btrfs_tree_unlock(cow);
+ free_extent_buffer(cow);
btrfs_abort_transaction(trans, ret);
return ret;
}
diff --git a/fs/btrfs/reada.c b/fs/btrfs/reada.c
index 440c0d5d2050..3a3ef73d877e 100644
--- a/fs/btrfs/reada.c
+++ b/fs/btrfs/reada.c
@@ -456,6 +456,8 @@ static struct reada_extent *reada_find_extent(struct btrfs_fs_info *fs_info,
}
have_zone = 1;
}
+ if (!have_zone)
+ radix_tree_delete(&fs_info->reada_tree, index);
spin_unlock(&fs_info->reada_lock);
btrfs_dev_replace_unlock(&fs_info->dev_replace, 0);

diff --git a/fs/btrfs/send.c b/fs/btrfs/send.c
index 654ab6e57ec3..447976579ed2 100644
--- a/fs/btrfs/send.c
+++ b/fs/btrfs/send.c
@@ -3820,6 +3820,72 @@ static int update_ref_path(struct send_ctx *sctx, struct recorded_ref *ref)
return 0;
}

+/*
+ * When processing the new references for an inode we may orphanize an existing
+ * directory inode because its old name conflicts with one of the new references
+ * of the current inode. Later, when processing another new reference of our
+ * inode, we might need to orphanize another inode, but the path we have in the
+ * reference reflects the pre-orphanization name of the directory we previously
+ * orphanized. For example:
+ *
+ * parent snapshot looks like:
+ *
+ * . (ino 256)
+ * |----- f1 (ino 257)
+ * |----- f2 (ino 258)
+ * |----- d1/ (ino 259)
+ * |----- d2/ (ino 260)
+ *
+ * send snapshot looks like:
+ *
+ * . (ino 256)
+ * |----- d1 (ino 258)
+ * |----- f2/ (ino 259)
+ * |----- f2_link/ (ino 260)
+ * | |----- f1 (ino 257)
+ * |
+ * |----- d2 (ino 258)
+ *
+ * When processing inode 257 we compute the name for inode 259 as "d1", and we
+ * cache it in the name cache. Later when we start processing inode 258, when
+ * collecting all its new references we set a full path of "d1/d2" for its new
+ * reference with name "d2". When we start processing the new references we
+ * start by processing the new reference with name "d1", and this results in
+ * orphanizing inode 259, since its old reference causes a conflict. Then we
+ * move on the next new reference, with name "d2", and we find out we must
+ * orphanize inode 260, as its old reference conflicts with ours - but for the
+ * orphanization we use a source path corresponding to the path we stored in the
+ * new reference, which is "d1/d2" and not "o259-6-0/d2" - this makes the
+ * receiver fail since the path component "d1/" no longer exists, it was renamed
+ * to "o259-6-0/" when processing the previous new reference. So in this case we
+ * must recompute the path in the new reference and use it for the new
+ * orphanization operation.
+ */
+static int refresh_ref_path(struct send_ctx *sctx, struct recorded_ref *ref)
+{
+ char *name;
+ int ret;
+
+ name = kmemdup(ref->name, ref->name_len, GFP_KERNEL);
+ if (!name)
+ return -ENOMEM;
+
+ fs_path_reset(ref->full_path);
+ ret = get_cur_path(sctx, ref->dir, ref->dir_gen, ref->full_path);
+ if (ret < 0)
+ goto out;
+
+ ret = fs_path_add(ref->full_path, name, ref->name_len);
+ if (ret < 0)
+ goto out;
+
+ /* Update the reference's base name pointer. */
+ set_ref_path(ref, ref->full_path);
+out:
+ kfree(name);
+ return ret;
+}
+
/*
* This does all the move/link/unlink/rmdir magic.
*/
@@ -3950,6 +4016,12 @@ static int process_recorded_refs(struct send_ctx *sctx, int *pending_move)
struct name_cache_entry *nce;
struct waiting_dir_move *wdm;

+ if (orphanized_dir) {
+ ret = refresh_ref_path(sctx, cur);
+ if (ret < 0)
+ goto out;
+ }
+
ret = orphanize_inode(sctx, ow_inode, ow_gen,
cur->full_path);
if (ret < 0)
@@ -6629,7 +6701,7 @@ long btrfs_ioctl_send(struct file *mnt_file, void __user *arg_)

alloc_size = sizeof(struct clone_root) * (arg->clone_sources_count + 1);

- sctx->clone_roots = kzalloc(alloc_size, GFP_KERNEL);
+ sctx->clone_roots = kvzalloc(alloc_size, GFP_KERNEL);
if (!sctx->clone_roots) {
ret = -ENOMEM;
goto out;
diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index ec8706a6e9c6..e40c27aec949 100644
--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -3478,6 +3478,7 @@ static noinline int log_dir_items(struct btrfs_trans_handle *trans,
* search and this search we'll not find the key again and can just
* bail.
*/
+search:
ret = btrfs_search_slot(NULL, root, &min_key, path, 0, 0);
if (ret != 0)
goto done;
@@ -3497,6 +3498,13 @@ static noinline int log_dir_items(struct btrfs_trans_handle *trans,

if (min_key.objectid != ino || min_key.type != key_type)
goto done;
+
+ if (need_resched()) {
+ btrfs_release_path(path);
+ cond_resched();
+ goto search;
+ }
+
ret = overwrite_item(trans, log, dst_path, src, i,
&min_key);
if (ret) {
diff --git a/fs/buffer.c b/fs/buffer.c
index 9fbeddb6834a..9ce03fc5eb32 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -2799,16 +2799,6 @@ int nobh_writepage(struct page *page, get_block_t *get_block,
/* Is the page fully outside i_size? (truncate in progress) */
offset = i_size & (PAGE_SIZE-1);
if (page->index >= end_index+1 || !offset) {
- /*
- * The page may have dirty, unmapped buffers. For example,
- * they may have been added in ext3_writepage(). Make them
- * freeable here, so the page does not leak.
- */
-#if 0
- /* Not really sure about this - do we need this ? */
- if (page->mapping->a_ops->invalidatepage)
- page->mapping->a_ops->invalidatepage(page, offset);
-#endif
unlock_page(page);
return 0; /* don't care */
}
@@ -3003,12 +2993,6 @@ int block_write_full_page(struct page *page, get_block_t *get_block,
/* Is the page fully outside i_size? (truncate in progress) */
offset = i_size & (PAGE_SIZE-1);
if (page->index >= end_index+1 || !offset) {
- /*
- * The page may have dirty, unmapped buffers. For example,
- * they may have been added in ext3_writepage(). Make them
- * freeable here, so the page does not leak.
- */
- do_invalidatepage(page, 0, PAGE_SIZE);
unlock_page(page);
return 0; /* don't care */
}
diff --git a/fs/cachefiles/rdwr.c b/fs/cachefiles/rdwr.c
index c073a0f680fd..8300e4755882 100644
--- a/fs/cachefiles/rdwr.c
+++ b/fs/cachefiles/rdwr.c
@@ -125,7 +125,7 @@ static int cachefiles_read_reissue(struct cachefiles_object *object,
_debug("reissue read");
ret = bmapping->a_ops->readpage(NULL, backpage);
if (ret < 0)
- goto unlock_discard;
+ goto discard;
}

/* but the page may have been read before the monitor was installed, so
@@ -142,6 +142,7 @@ static int cachefiles_read_reissue(struct cachefiles_object *object,

unlock_discard:
unlock_page(backpage);
+discard:
spin_lock_irq(&object->work_lock);
list_del(&monitor->op_link);
spin_unlock_irq(&object->work_lock);
diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c
index 4d622654bfbc..ae1435c12d2b 100644
--- a/fs/ceph/addr.c
+++ b/fs/ceph/addr.c
@@ -1443,7 +1443,7 @@ static int ceph_filemap_fault(struct vm_fault *vmf)
struct ceph_inode_info *ci = ceph_inode(inode);
struct ceph_file_info *fi = vma->vm_file->private_data;
struct page *pinned_page = NULL;
- loff_t off = vmf->pgoff << PAGE_SHIFT;
+ loff_t off = (loff_t)vmf->pgoff << PAGE_SHIFT;
int want, got, ret;
sigset_t oldset;

diff --git a/fs/crypto/policy.c b/fs/crypto/policy.c
index d13a154c8424..4cda0e960bc2 100644
--- a/fs/crypto/policy.c
+++ b/fs/crypto/policy.c
@@ -153,8 +153,7 @@ EXPORT_SYMBOL(fscrypt_ioctl_get_policy);
* malicious offline violations of this constraint, while the link and rename
* checks are needed to prevent online violations of this constraint.
*
- * Return: 1 if permitted, 0 if forbidden. If forbidden, the caller must fail
- * the filesystem operation with EPERM.
+ * Return: 1 if permitted, 0 if forbidden.
*/
int fscrypt_has_permitted_context(struct inode *parent, struct inode *child)
{
diff --git a/fs/efivarfs/super.c b/fs/efivarfs/super.c
index 5b68e4294faa..834615f13f3e 100644
--- a/fs/efivarfs/super.c
+++ b/fs/efivarfs/super.c
@@ -145,6 +145,9 @@ static int efivarfs_callback(efi_char16_t *name16, efi_guid_t vendor,

name[len + EFI_VARIABLE_GUID_LEN+1] = '\0';

+ /* replace invalid slashes like kobject_set_name_vargs does for /sys/firmware/efi/vars. */
+ strreplace(name, '/', '!');
+
inode = efivarfs_get_inode(sb, d_inode(root), S_IFREG | 0644, 0,
is_removable);
if (!inode)
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 34da8d341c0c..1d8638ee5442 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -5135,6 +5135,12 @@ static int ext4_do_update_inode(handle_t *handle,
if (ext4_test_inode_state(inode, EXT4_STATE_NEW))
memset(raw_inode, 0, EXT4_SB(inode->i_sb)->s_inode_size);

+ err = ext4_inode_blocks_set(handle, raw_inode, ei);
+ if (err) {
+ spin_unlock(&ei->i_raw_lock);
+ goto out_brelse;
+ }
+
raw_inode->i_mode = cpu_to_le16(inode->i_mode);
i_uid = i_uid_read(inode);
i_gid = i_gid_read(inode);
@@ -5168,11 +5174,6 @@ static int ext4_do_update_inode(handle_t *handle,
EXT4_INODE_SET_XTIME(i_atime, inode, raw_inode);
EXT4_EINODE_SET_XTIME(i_crtime, ei, raw_inode);

- err = ext4_inode_blocks_set(handle, raw_inode, ei);
- if (err) {
- spin_unlock(&ei->i_raw_lock);
- goto out_brelse;
- }
raw_inode->i_dtime = cpu_to_le32(ei->i_dtime);
raw_inode->i_flags = cpu_to_le32(ei->i_flags & 0xFFFFFFFF);
if (likely(!test_opt2(inode->i_sb, HURD_COMPAT)))
diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
index 3f999053457b..6936de30fcf0 100644
--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -3280,7 +3280,7 @@ static int ext4_link(struct dentry *old_dentry,
return -EMLINK;
if (ext4_encrypted_inode(dir) &&
!fscrypt_has_permitted_context(dir, inode))
- return -EPERM;
+ return -EXDEV;

if ((ext4_test_inode_flag(dir, EXT4_INODE_PROJINHERIT)) &&
(!projid_eq(EXT4_I(dir)->i_projid,
@@ -3618,7 +3618,7 @@ static int ext4_rename(struct inode *old_dir, struct dentry *old_dentry,
if ((old.dir != new.dir) &&
ext4_encrypted_inode(new.dir) &&
!fscrypt_has_permitted_context(new.dir, old.inode)) {
- retval = -EPERM;
+ retval = -EXDEV;
goto end_rename;
}

@@ -3798,7 +3798,7 @@ static int ext4_cross_rename(struct inode *old_dir, struct dentry *old_dentry,
(old_dir != new_dir) &&
(!fscrypt_has_permitted_context(new_dir, old.inode) ||
!fscrypt_has_permitted_context(old_dir, new.inode)))
- return -EPERM;
+ return -EXDEV;

if ((ext4_test_inode_flag(new_dir, EXT4_INODE_PROJINHERIT) &&
!projid_eq(EXT4_I(new_dir)->i_projid,
diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c
index 19af346a6651..454fd21a00b4 100644
--- a/fs/ext4/resize.c
+++ b/fs/ext4/resize.c
@@ -837,8 +837,10 @@ static int add_new_gdb(handle_t *handle, struct inode *inode,

BUFFER_TRACE(dind, "get_write_access");
err = ext4_journal_get_write_access(handle, dind);
- if (unlikely(err))
+ if (unlikely(err)) {
ext4_std_error(sb, err);
+ goto errout;
+ }

/* ext4_reserve_inode_write() gets a reference on the iloc */
err = ext4_reserve_inode_write(handle, inode, &iloc);
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 634c822d1dc9..ec96466f2909 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -4505,6 +4505,7 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)

failed_mount8:
ext4_unregister_sysfs(sb);
+ kobject_put(&sbi->s_kobj);
failed_mount7:
ext4_unregister_li_request(sb);
failed_mount6:
@@ -5626,6 +5627,11 @@ static int ext4_quota_on(struct super_block *sb, int type, int format_id,
/* Quotafile not on the same filesystem? */
if (path->dentry->d_sb != sb)
return -EXDEV;
+
+ /* Quota already enabled for this file? */
+ if (IS_NOQUOTA(d_inode(path->dentry)))
+ return -EBUSY;
+
/* Journaling quota? */
if (EXT4_SB(sb)->s_qf_names[type]) {
/* Quotafile not in fs root? */
diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index 170423ff2721..0f2286e57907 100644
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -202,6 +202,8 @@ int ra_meta_pages(struct f2fs_sb_info *sbi, block_t start, int nrpages,
blkno * NAT_ENTRY_PER_BLOCK);
break;
case META_SIT:
+ if (unlikely(blkno >= TOTAL_SEGS(sbi)))
+ goto out;
/* get sit block addr */
fio.new_blkaddr = current_sit_addr(sbi,
blkno * SIT_ENTRY_PER_BLOCK);
@@ -942,8 +944,12 @@ int sync_dirty_inodes(struct f2fs_sb_info *sbi, enum inode_type type)
get_pages(sbi, is_dir ?
F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA));
retry:
- if (unlikely(f2fs_cp_error(sbi)))
+ if (unlikely(f2fs_cp_error(sbi))) {
+ trace_f2fs_sync_dirty_inodes_exit(sbi->sb, is_dir,
+ get_pages(sbi, is_dir ?
+ F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA));
return -EIO;
+ }

spin_lock(&sbi->inode_lock[type]);

diff --git a/fs/f2fs/namei.c b/fs/f2fs/namei.c
index b13383948fca..9fb98fce7096 100644
--- a/fs/f2fs/namei.c
+++ b/fs/f2fs/namei.c
@@ -222,7 +222,7 @@ static int f2fs_link(struct dentry *old_dentry, struct inode *dir,

if (f2fs_encrypted_inode(dir) &&
!fscrypt_has_permitted_context(dir, inode))
- return -EPERM;
+ return -EXDEV;

if (is_inode_flag_set(dir, FI_PROJ_INHERIT) &&
(!projid_eq(F2FS_I(dir)->i_projid,
@@ -746,7 +746,7 @@ static int f2fs_rename(struct inode *old_dir, struct dentry *old_dentry,

if ((old_dir != new_dir) && f2fs_encrypted_inode(new_dir) &&
!fscrypt_has_permitted_context(new_dir, old_inode)) {
- err = -EPERM;
+ err = -EXDEV;
goto out;
}

@@ -942,7 +942,7 @@ static int f2fs_cross_rename(struct inode *old_dir, struct dentry *old_dentry,
(old_dir != new_dir) &&
(!fscrypt_has_permitted_context(new_dir, old_inode) ||
!fscrypt_has_permitted_context(old_dir, new_inode)))
- return -EPERM;
+ return -EXDEV;

if ((is_inode_flag_set(new_dir, FI_PROJ_INHERIT) &&
!projid_eq(F2FS_I(new_dir)->i_projid,
diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index 1b9c4c19bed2..cfc19140f2a0 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -845,15 +845,16 @@ static int fuse_try_move_page(struct fuse_copy_state *cs, struct page **pagep)
struct page *newpage;
struct pipe_buffer *buf = cs->pipebufs;

+ get_page(oldpage);
err = unlock_request(cs->req);
if (err)
- return err;
+ goto out_put_old;

fuse_copy_finish(cs);

err = pipe_buf_confirm(cs->pipe, buf);
if (err)
- return err;
+ goto out_put_old;

BUG_ON(!cs->nr_segs);
cs->currbuf = buf;
@@ -893,7 +894,7 @@ static int fuse_try_move_page(struct fuse_copy_state *cs, struct page **pagep)
err = replace_page_cache_page(oldpage, newpage, GFP_KERNEL);
if (err) {
unlock_page(newpage);
- return err;
+ goto out_put_old;
}

get_page(newpage);
@@ -912,14 +913,19 @@ static int fuse_try_move_page(struct fuse_copy_state *cs, struct page **pagep)
if (err) {
unlock_page(newpage);
put_page(newpage);
- return err;
+ goto out_put_old;
}

unlock_page(oldpage);
+ /* Drop ref for ap->pages[] array */
put_page(oldpage);
cs->len = 0;

- return 0;
+ err = 0;
+out_put_old:
+ /* Drop ref obtained in this function */
+ put_page(oldpage);
+ return err;

out_fallback_unlock:
unlock_page(newpage);
@@ -928,10 +934,10 @@ static int fuse_try_move_page(struct fuse_copy_state *cs, struct page **pagep)
cs->offset = buf->offset;

err = lock_request(cs->req);
- if (err)
- return err;
+ if (!err)
+ err = 1;

- return 1;
+ goto out_put_old;
}

static int fuse_ref_page(struct fuse_copy_state *cs, struct page *page,
@@ -943,14 +949,16 @@ static int fuse_ref_page(struct fuse_copy_state *cs, struct page *page,
if (cs->nr_segs == cs->pipe->buffers)
return -EIO;

+ get_page(page);
err = unlock_request(cs->req);
- if (err)
+ if (err) {
+ put_page(page);
return err;
+ }

fuse_copy_finish(cs);

buf = cs->pipebufs;
- get_page(page);
buf->page = page;
buf->offset = offset;
buf->len = count;
diff --git a/fs/gfs2/ops_fstype.c b/fs/gfs2/ops_fstype.c
index 2de67588ac2d..0b5c37ceb3ed 100644
--- a/fs/gfs2/ops_fstype.c
+++ b/fs/gfs2/ops_fstype.c
@@ -161,15 +161,19 @@ static int gfs2_check_sb(struct gfs2_sbd *sdp, int silent)
return -EINVAL;
}

- /* If format numbers match exactly, we're done. */
-
- if (sb->sb_fs_format == GFS2_FORMAT_FS &&
- sb->sb_multihost_format == GFS2_FORMAT_MULTI)
- return 0;
+ if (sb->sb_fs_format != GFS2_FORMAT_FS ||
+ sb->sb_multihost_format != GFS2_FORMAT_MULTI) {
+ fs_warn(sdp, "Unknown on-disk format, unable to mount\n");
+ return -EINVAL;
+ }

- fs_warn(sdp, "Unknown on-disk format, unable to mount\n");
+ if (sb->sb_bsize < 512 || sb->sb_bsize > PAGE_SIZE ||
+ (sb->sb_bsize & (sb->sb_bsize - 1))) {
+ pr_warn("Invalid superblock size\n");
+ return -EINVAL;
+ }

- return -EINVAL;
+ return 0;
}

static void end_bio_io_page(struct bio *bio)
diff --git a/fs/nfs/namespace.c b/fs/nfs/namespace.c
index e5686be67be8..d57d453aecc2 100644
--- a/fs/nfs/namespace.c
+++ b/fs/nfs/namespace.c
@@ -30,9 +30,9 @@ int nfs_mountpoint_expiry_timeout = 500 * HZ;
/*
* nfs_path - reconstruct the path given an arbitrary dentry
* @base - used to return pointer to the end of devname part of path
- * @dentry - pointer to dentry
+ * @dentry_in - pointer to dentry
* @buffer - result buffer
- * @buflen - length of buffer
+ * @buflen_in - length of buffer
* @flags - options (see below)
*
* Helper function for constructing the server pathname
@@ -47,15 +47,19 @@ int nfs_mountpoint_expiry_timeout = 500 * HZ;
* the original device (export) name
* (if unset, the original name is returned verbatim)
*/
-char *nfs_path(char **p, struct dentry *dentry, char *buffer, ssize_t buflen,
- unsigned flags)
+char *nfs_path(char **p, struct dentry *dentry_in, char *buffer,
+ ssize_t buflen_in, unsigned flags)
{
char *end;
int namelen;
unsigned seq;
const char *base;
+ struct dentry *dentry;
+ ssize_t buflen;

rename_retry:
+ buflen = buflen_in;
+ dentry = dentry_in;
end = buffer+buflen;
*--end = '\0';
buflen--;
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 997b731ee19a..bb899a6fe8ac 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -7283,9 +7283,11 @@ int nfs4_proc_secinfo(struct inode *dir, const struct qstr *name,
* both PNFS and NON_PNFS flags set, and not having one of NON_PNFS, PNFS, or
* DS flags set.
*/
-static int nfs4_check_cl_exchange_flags(u32 flags)
+static int nfs4_check_cl_exchange_flags(u32 flags, u32 version)
{
- if (flags & ~EXCHGID4_FLAG_MASK_R)
+ if (version >= 2 && (flags & ~EXCHGID4_2_FLAG_MASK_R))
+ goto out_inval;
+ else if (version < 2 && (flags & ~EXCHGID4_FLAG_MASK_R))
goto out_inval;
if ((flags & EXCHGID4_FLAG_USE_PNFS_MDS) &&
(flags & EXCHGID4_FLAG_USE_NON_PNFS))
@@ -7680,7 +7682,8 @@ static int _nfs4_proc_exchange_id(struct nfs_client *clp, struct rpc_cred *cred,
if (status != 0)
goto out;

- status = nfs4_check_cl_exchange_flags(resp->flags);
+ status = nfs4_check_cl_exchange_flags(resp->flags,
+ clp->cl_mvops->minor_version);
if (status != 0)
goto out;

diff --git a/fs/nfsd/nfsproc.c b/fs/nfsd/nfsproc.c
index 43c0419b8ddb..fc6282181a1f 100644
--- a/fs/nfsd/nfsproc.c
+++ b/fs/nfsd/nfsproc.c
@@ -118,6 +118,13 @@ nfsd_proc_setattr(struct svc_rqst *rqstp)
return nfsd_return_attrs(nfserr, resp);
}

+/* Obsolete, replaced by MNTPROC_MNT. */
+static __be32
+nfsd_proc_root(struct svc_rqst *rqstp)
+{
+ return nfs_ok;
+}
+
/*
* Look up a path name component
* Note: the dentry in the resp->fh may be negative if the file
@@ -201,6 +208,13 @@ nfsd_proc_read(struct svc_rqst *rqstp)
return fh_getattr(&resp->fh, &resp->stat);
}

+/* Reserved */
+static __be32
+nfsd_proc_writecache(struct svc_rqst *rqstp)
+{
+ return nfs_ok;
+}
+
/*
* Write data to a file
* N.B. After this call resp->fh needs an fh_put
@@ -605,6 +619,7 @@ static const struct svc_procedure nfsd_procedures2[18] = {
.pc_xdrressize = ST+AT,
},
[NFSPROC_ROOT] = {
+ .pc_func = nfsd_proc_root,
.pc_decode = nfssvc_decode_void,
.pc_encode = nfssvc_encode_void,
.pc_argsize = sizeof(struct nfsd_void),
@@ -642,6 +657,7 @@ static const struct svc_procedure nfsd_procedures2[18] = {
.pc_xdrressize = ST+AT+1+NFSSVC_MAXBLKSIZE_V2/4,
},
[NFSPROC_WRITECACHE] = {
+ .pc_func = nfsd_proc_writecache,
.pc_decode = nfssvc_decode_void,
.pc_encode = nfssvc_encode_void,
.pc_argsize = sizeof(struct nfsd_void),
diff --git a/fs/ubifs/debug.c b/fs/ubifs/debug.c
index 7cd8a7b95299..80cdd64aa7c3 100644
--- a/fs/ubifs/debug.c
+++ b/fs/ubifs/debug.c
@@ -1129,6 +1129,7 @@ int dbg_check_dir(struct ubifs_info *c, const struct inode *dir)
err = PTR_ERR(dent);
if (err == -ENOENT)
break;
+ kfree(pdent);
return err;
}

diff --git a/fs/ubifs/dir.c b/fs/ubifs/dir.c
index 358abc26dbc0..9d5face7fdc0 100644
--- a/fs/ubifs/dir.c
+++ b/fs/ubifs/dir.c
@@ -747,7 +747,7 @@ static int ubifs_link(struct dentry *old_dentry, struct inode *dir,

if (ubifs_crypt_is_encrypted(dir) &&
!fscrypt_has_permitted_context(dir, inode))
- return -EPERM;
+ return -EXDEV;

err = fscrypt_setup_filename(dir, &dentry->d_name, 0, &nm);
if (err)
@@ -1357,7 +1357,7 @@ static int do_rename(struct inode *old_dir, struct dentry *old_dentry,
if (old_dir != new_dir) {
if (ubifs_crypt_is_encrypted(new_dir) &&
!fscrypt_has_permitted_context(new_dir, old_inode))
- return -EPERM;
+ return -EXDEV;
}

if (unlink && is_dir) {
@@ -1579,7 +1579,7 @@ static int ubifs_xrename(struct inode *old_dir, struct dentry *old_dentry,
(old_dir != new_dir) &&
(!fscrypt_has_permitted_context(new_dir, fst_inode) ||
!fscrypt_has_permitted_context(old_dir, snd_inode)))
- return -EPERM;
+ return -EXDEV;

err = fscrypt_setup_filename(old_dir, &old_dentry->d_name, 0, &fst_nm);
if (err)
diff --git a/fs/xfs/xfs_rtalloc.c b/fs/xfs/xfs_rtalloc.c
index 7d3b56872e56..f1cf83283710 100644
--- a/fs/xfs/xfs_rtalloc.c
+++ b/fs/xfs/xfs_rtalloc.c
@@ -1014,10 +1014,13 @@ xfs_growfs_rt(
xfs_ilock(mp->m_rbmip, XFS_ILOCK_EXCL);
xfs_trans_ijoin(tp, mp->m_rbmip, XFS_ILOCK_EXCL);
/*
- * Update the bitmap inode's size.
+ * Update the bitmap inode's size ondisk and incore. We need
+ * to update the incore size so that inode inactivation won't
+ * punch what it thinks are "posteof" blocks.
*/
mp->m_rbmip->i_d.di_size =
nsbp->sb_rbmblocks * nsbp->sb_blocksize;
+ i_size_write(VFS_I(mp->m_rbmip), mp->m_rbmip->i_d.di_size);
xfs_trans_log_inode(tp, mp->m_rbmip, XFS_ILOG_CORE);
/*
* Get the summary inode into the transaction.
@@ -1025,9 +1028,12 @@ xfs_growfs_rt(
xfs_ilock(mp->m_rsumip, XFS_ILOCK_EXCL);
xfs_trans_ijoin(tp, mp->m_rsumip, XFS_ILOCK_EXCL);
/*
- * Update the summary inode's size.
+ * Update the summary inode's size. We need to update the
+ * incore size so that inode inactivation won't punch what it
+ * thinks are "posteof" blocks.
*/
mp->m_rsumip->i_d.di_size = nmp->m_rsumsize;
+ i_size_write(VFS_I(mp->m_rsumip), mp->m_rsumip->i_d.di_size);
xfs_trans_log_inode(tp, mp->m_rsumip, XFS_ILOG_CORE);
/*
* Copy summary data from old to new sizes.
diff --git a/include/linux/hil_mlc.h b/include/linux/hil_mlc.h
index 394a8405dd74..e0521a1d9325 100644
--- a/include/linux/hil_mlc.h
+++ b/include/linux/hil_mlc.h
@@ -103,7 +103,7 @@ struct hilse_node {

/* Methods for back-end drivers, e.g. hp_sdc_mlc */
typedef int (hil_mlc_cts) (hil_mlc *mlc);
-typedef void (hil_mlc_out) (hil_mlc *mlc);
+typedef int (hil_mlc_out) (hil_mlc *mlc);
typedef int (hil_mlc_in) (hil_mlc *mlc, suseconds_t timeout);

struct hil_mlc_devinfo {
diff --git a/include/linux/mtd/pfow.h b/include/linux/mtd/pfow.h
index 122f3439e1af..c65d7a3be3c6 100644
--- a/include/linux/mtd/pfow.h
+++ b/include/linux/mtd/pfow.h
@@ -128,7 +128,7 @@ static inline void print_drs_error(unsigned dsr)

if (!(dsr & DSR_AVAILABLE))
printk(KERN_NOTICE"DSR.15: (0) Device not Available\n");
- if (prog_status & 0x03)
+ if ((prog_status & 0x03) == 0x03)
printk(KERN_NOTICE"DSR.9,8: (11) Attempt to program invalid "
"half with 41h command\n");
else if (prog_status & 0x02)
diff --git a/include/uapi/linux/nfs4.h b/include/uapi/linux/nfs4.h
index 8572930cf5b0..54a78529c8b3 100644
--- a/include/uapi/linux/nfs4.h
+++ b/include/uapi/linux/nfs4.h
@@ -136,6 +136,8 @@

#define EXCHGID4_FLAG_UPD_CONFIRMED_REC_A 0x40000000
#define EXCHGID4_FLAG_CONFIRMED_R 0x80000000
+
+#define EXCHGID4_FLAG_SUPP_FENCE_OPS 0x00000004
/*
* Since the validity of these bits depends on whether
* they're set in the argument or response, have separate
@@ -143,6 +145,7 @@
*/
#define EXCHGID4_FLAG_MASK_A 0x40070103
#define EXCHGID4_FLAG_MASK_R 0x80070103
+#define EXCHGID4_2_FLAG_MASK_R 0x80070107

#define SEQ4_STATUS_CB_PATH_DOWN 0x00000001
#define SEQ4_STATUS_CB_GSS_CONTEXTS_EXPIRING 0x00000002
diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
index 1c095b5a99c5..b773e96b4a28 100644
--- a/include/uapi/linux/videodev2.h
+++ b/include/uapi/linux/videodev2.h
@@ -362,9 +362,9 @@ enum v4l2_hsv_encoding {

enum v4l2_quantization {
/*
- * The default for R'G'B' quantization is always full range, except
- * for the BT2020 colorspace. For Y'CbCr the quantization is always
- * limited range, except for COLORSPACE_JPEG: this is full range.
+ * The default for R'G'B' quantization is always full range.
+ * For Y'CbCr the quantization is always limited range, except
+ * for COLORSPACE_JPEG: this is full range.
*/
V4L2_QUANTIZATION_DEFAULT = 0,
V4L2_QUANTIZATION_FULL_RANGE = 1,
@@ -373,14 +373,13 @@ enum v4l2_quantization {

/*
* Determine how QUANTIZATION_DEFAULT should map to a proper quantization.
- * This depends on whether the image is RGB or not, the colorspace and the
- * Y'CbCr encoding.
+ * This depends on whether the image is RGB or not, the colorspace.
+ * The Y'CbCr encoding is not used anymore, but is still there for backwards
+ * compatibility.
*/
#define V4L2_MAP_QUANTIZATION_DEFAULT(is_rgb_or_hsv, colsp, ycbcr_enc) \
- (((is_rgb_or_hsv) && (colsp) == V4L2_COLORSPACE_BT2020) ? \
- V4L2_QUANTIZATION_LIM_RANGE : \
- (((is_rgb_or_hsv) || (colsp) == V4L2_COLORSPACE_JPEG) ? \
- V4L2_QUANTIZATION_FULL_RANGE : V4L2_QUANTIZATION_LIM_RANGE))
+ (((is_rgb_or_hsv) || (colsp) == V4L2_COLORSPACE_JPEG) ? \
+ V4L2_QUANTIZATION_FULL_RANGE : V4L2_QUANTIZATION_LIM_RANGE)

enum v4l2_priority {
V4L2_PRIORITY_UNSET = 0, /* not initialized */
diff --git a/init/Kconfig b/init/Kconfig
index 46075327c165..20f709ea1eb3 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -500,7 +500,8 @@ config IKCONFIG_PROC

config LOG_BUF_SHIFT
int "Kernel log buffer size (16 => 64KB, 17 => 128KB)"
- range 12 25
+ range 12 25 if !H8300
+ range 12 19 if H8300
default 17
depends on PRINTK
help
diff --git a/kernel/debug/debug_core.c b/kernel/debug/debug_core.c
index 694fcd049282..4cf5697e72b1 100644
--- a/kernel/debug/debug_core.c
+++ b/kernel/debug/debug_core.c
@@ -95,14 +95,6 @@ int dbg_switch_cpu;
/* Use kdb or gdbserver mode */
int dbg_kdb_mode = 1;

-static int __init opt_kgdb_con(char *str)
-{
- kgdb_use_con = 1;
- return 0;
-}
-
-early_param("kgdbcon", opt_kgdb_con);
-
module_param(kgdb_use_con, int, 0644);
module_param(kgdbreboot, int, 0644);

@@ -816,6 +808,20 @@ static struct console kgdbcons = {
.index = -1,
};

+static int __init opt_kgdb_con(char *str)
+{
+ kgdb_use_con = 1;
+
+ if (kgdb_io_module_registered && !kgdb_con_registered) {
+ register_console(&kgdbcons);
+ kgdb_con_registered = 1;
+ }
+
+ return 0;
+}
+
+early_param("kgdbcon", opt_kgdb_con);
+
#ifdef CONFIG_MAGIC_SYSRQ
static void sysrq_handle_dbg(int key)
{
diff --git a/kernel/futex.c b/kernel/futex.c
index 2921ebaa1467..8f0e62c59a55 100644
--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -1595,8 +1595,10 @@ static int wake_futex_pi(u32 __user *uaddr, u32 uval, struct futex_pi_state *pi_
*/
newval = FUTEX_WAITERS | task_pid_vnr(new_owner);

- if (unlikely(should_fail_futex(true)))
+ if (unlikely(should_fail_futex(true))) {
ret = -EFAULT;
+ goto out_unlock;
+ }

ret = cmpxchg_futex_value_locked(&curval, uaddr, uval, newval);
if (!ret && (curval != uval)) {
diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c
index 8123a8b53c54..b9b71e7fb697 100644
--- a/kernel/trace/ring_buffer.c
+++ b/kernel/trace/ring_buffer.c
@@ -1625,18 +1625,18 @@ int ring_buffer_resize(struct ring_buffer *buffer, unsigned long size,
{
struct ring_buffer_per_cpu *cpu_buffer;
unsigned long nr_pages;
- int cpu, err = 0;
+ int cpu, err;

/*
* Always succeed at resizing a non-existent buffer:
*/
if (!buffer)
- return size;
+ return 0;

/* Make sure the requested buffer exists */
if (cpu_id != RING_BUFFER_ALL_CPUS &&
!cpumask_test_cpu(cpu_id, buffer->cpumask))
- return size;
+ return 0;

nr_pages = DIV_ROUND_UP(size, BUF_PAGE_SIZE);

@@ -1776,7 +1776,7 @@ int ring_buffer_resize(struct ring_buffer *buffer, unsigned long size,
}

mutex_unlock(&buffer->mutex);
- return size;
+ return 0;

out_err:
for_each_buffer_cpu(buffer, cpu) {
diff --git a/lib/scatterlist.c b/lib/scatterlist.c
index 834c846c5af8..2cf02a82d502 100644
--- a/lib/scatterlist.c
+++ b/lib/scatterlist.c
@@ -477,7 +477,7 @@ struct scatterlist *sgl_alloc_order(unsigned long long length,
elem_len = min_t(u64, length, PAGE_SIZE << order);
page = alloc_pages(gfp, order);
if (!page) {
- sgl_free(sgl);
+ sgl_free_order(sgl, order);
return NULL;
}

diff --git a/net/9p/trans_fd.c b/net/9p/trans_fd.c
index 9f020559c192..1b56b22c5c5d 100644
--- a/net/9p/trans_fd.c
+++ b/net/9p/trans_fd.c
@@ -1029,7 +1029,7 @@ p9_fd_create_unix(struct p9_client *client, const char *addr, char *args)

csocket = NULL;

- if (addr == NULL)
+ if (!addr || !strlen(addr))
return -EINVAL;

if (strlen(addr) >= UNIX_PATH_MAX) {
diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c
index 081a41c75341..274dfbb375fc 100644
--- a/net/ceph/messenger.c
+++ b/net/ceph/messenger.c
@@ -3007,6 +3007,11 @@ static void con_fault(struct ceph_connection *con)
ceph_msg_put(con->in_msg);
con->in_msg = NULL;
}
+ if (con->out_msg) {
+ BUG_ON(con->out_msg->con != con);
+ ceph_msg_put(con->out_msg);
+ con->out_msg = NULL;
+ }

/* Requeue anything that hasn't been acked */
list_splice_init(&con->out_sent, &con->out_queue);
diff --git a/net/tipc/msg.c b/net/tipc/msg.c
index e61657a0438a..2964677e909d 100644
--- a/net/tipc/msg.c
+++ b/net/tipc/msg.c
@@ -140,12 +140,11 @@ int tipc_buf_append(struct sk_buff **headbuf, struct sk_buff **buf)
if (fragid == FIRST_FRAGMENT) {
if (unlikely(head))
goto err;
- if (skb_cloned(frag))
- frag = skb_copy(frag, GFP_ATOMIC);
+ *buf = NULL;
+ frag = skb_unshare(frag, GFP_ATOMIC);
if (unlikely(!frag))
goto err;
head = *headbuf = frag;
- *buf = NULL;
TIPC_SKB_CB(head)->tail = NULL;
if (skb_is_nonlinear(head)) {
skb_walk_frags(head, tail) {
diff --git a/scripts/setlocalversion b/scripts/setlocalversion
index 365b3c2b8f43..2cb0b92f40be 100755
--- a/scripts/setlocalversion
+++ b/scripts/setlocalversion
@@ -45,7 +45,7 @@ scm_version()

# Check for git and a git repo.
if test -z "$(git rev-parse --show-cdup 2>/dev/null)" &&
- head=`git rev-parse --verify --short HEAD 2>/dev/null`; then
+ head=$(git rev-parse --verify HEAD 2>/dev/null); then

# If we are at a tagged commit (like "v2.6.30-rc6"), we ignore
# it, because this version is defined in the top level Makefile.
@@ -59,11 +59,22 @@ scm_version()
fi
# If we are past a tagged commit (like
# "v2.6.30-rc5-302-g72357d5"), we pretty print it.
- if atag="`git describe 2>/dev/null`"; then
- echo "$atag" | awk -F- '{printf("-%05d-%s", $(NF-1),$(NF))}'
-
- # If we don't have a tag at all we print -g{commitish}.
+ #
+ # Ensure the abbreviated sha1 has exactly 12
+ # hex characters, to make the output
+ # independent of git version, local
+ # core.abbrev settings and/or total number of
+ # objects in the current repository - passing
+ # --abbrev=12 ensures a minimum of 12, and the
+ # awk substr() then picks the 'g' and first 12
+ # hex chars.
+ if atag="$(git describe --abbrev=12 2>/dev/null)"; then
+ echo "$atag" | awk -F- '{printf("-%05d-%s", $(NF-1),substr($(NF),0,13))}'
+
+ # If we don't have a tag at all we print -g{commitish},
+ # again using exactly 12 hex chars.
else
+ head="$(echo $head | cut -c1-12)"
printf '%s%s' -g $head
fi
fi
diff --git a/tools/perf/util/print_binary.c b/tools/perf/util/print_binary.c
index 779e35c9e566..95e362e4d257 100644
--- a/tools/perf/util/print_binary.c
+++ b/tools/perf/util/print_binary.c
@@ -48,7 +48,7 @@ int is_printable_array(char *p, unsigned int len)

len--;

- for (i = 0; i < len; i++) {
+ for (i = 0; i < len && p[i]; i++) {
if (!isprint(p[i]) && !isspace(p[i]))
return 0;
}