Merge tag 'drm-fixes-for-v4.13-rc7' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
"Fixes for rc7, nothing too crazy, some core, i915, and sunxi fixes,
Intel CI has been responsible for some of these fixes being required"
* tag 'drm-fixes-for-v4.13-rc7' of git://people.freedesktop.org/~airlied/linux:
drm/i915/gvt: Fix the kernel null pointer error
drm: Release driver tracking before making the object available again
drm/i915: Clear lost context-switch interrupts across reset
drm/i915/bxt: use NULL for GPIO connection ID
drm/i915/cnl: Fix LSPCON support.
drm/i915/vbt: ignore extraneous child devices for a port
drm/i915: Initialize 'data' in intel_dsi_dcs_backlight.c
drm/atomic: If the atomic check fails, return its value first
drm/atomic: Handle -EDEADLK with out-fences correctly
drm: Fix framebuffer leak
drm/imx: ipuv3-plane: fix YUV framebuffer scanout on the base plane
gpu: ipu-v3: add DRM dependency
drm/rockchip: Fix suspend crash when drm is not bound
drm/sun4i: Implement drm_driver lastclose to restore fbdev console
diff --git a/Documentation/networking/switchdev.txt b/Documentation/networking/switchdev.txt
index 3e7b946..5e40e1f 100644
--- a/Documentation/networking/switchdev.txt
+++ b/Documentation/networking/switchdev.txt
@@ -228,7 +228,7 @@
bridge link set dev DEV learning on self
bridge link set dev DEV learning_sync on self
-Learning_sync attribute enables syncing of the learned/forgotton FDB entry to
+Learning_sync attribute enables syncing of the learned/forgotten FDB entry to
the bridge's FDB. It's possible, but not optimal, to enable learning on the
device port and on the bridge port, and disable learning_sync.
@@ -245,7 +245,7 @@
port device supports ageing, when the FDB entry expires, it will notify the
driver which in turn will notify the bridge with SWITCHDEV_FDB_DEL. If the
device does not support ageing, the driver can simulate ageing using a
-garbage collection timer to monitor FBD entries. Expired entries will be
+garbage collection timer to monitor FDB entries. Expired entries will be
notified to the bridge using SWITCHDEV_FDB_DEL. See rocker driver for
example of driver running ageing timer.
diff --git a/Documentation/sysctl/net.txt b/Documentation/sysctl/net.txt
index 14db18c..28596e0 100644
--- a/Documentation/sysctl/net.txt
+++ b/Documentation/sysctl/net.txt
@@ -35,9 +35,34 @@
bpf_jit_enable
--------------
-This enables Berkeley Packet Filter Just in Time compiler.
-Currently supported on x86_64 architecture, bpf_jit provides a framework
-to speed packet filtering, the one used by tcpdump/libpcap for example.
+This enables the BPF Just in Time (JIT) compiler. BPF is a flexible
+and efficient infrastructure allowing to execute bytecode at various
+hook points. It is used in a number of Linux kernel subsystems such
+as networking (e.g. XDP, tc), tracing (e.g. kprobes, uprobes, tracepoints)
+and security (e.g. seccomp). LLVM has a BPF back end that can compile
+restricted C into a sequence of BPF instructions. After program load
+through bpf(2) and passing a verifier in the kernel, a JIT will then
+translate these BPF proglets into native CPU instructions. There are
+two flavors of JITs, the newer eBPF JIT currently supported on:
+ - x86_64
+ - arm64
+ - ppc64
+ - sparc64
+ - mips64
+ - s390x
+
+And the older cBPF JIT supported on the following archs:
+ - arm
+ - mips
+ - ppc
+ - sparc
+
+eBPF JITs are a superset of cBPF JITs, meaning the kernel will
+migrate cBPF instructions into eBPF instructions and then JIT
+compile them transparently. Older cBPF JITs can only translate
+tcpdump filters, seccomp rules, etc, but not mentioned eBPF
+programs loaded through bpf(2).
+
Values :
0 - disable the JIT (default value)
1 - enable the JIT
@@ -46,9 +71,9 @@
bpf_jit_harden
--------------
-This enables hardening for the Berkeley Packet Filter Just in Time compiler.
-Supported are eBPF JIT backends. Enabling hardening trades off performance,
-but can mitigate JIT spraying.
+This enables hardening for the BPF JIT compiler. Supported are eBPF
+JIT backends. Enabling hardening trades off performance, but can
+mitigate JIT spraying.
Values :
0 - disable JIT hardening (default value)
1 - enable JIT hardening for unprivileged users only
@@ -57,11 +82,11 @@
bpf_jit_kallsyms
----------------
-When Berkeley Packet Filter Just in Time compiler is enabled, then compiled
-images are unknown addresses to the kernel, meaning they neither show up in
-traces nor in /proc/kallsyms. This enables export of these addresses, which
-can be used for debugging/tracing. If bpf_jit_harden is enabled, this feature
-is disabled.
+When BPF JIT compiler is enabled, then compiled images are unknown
+addresses to the kernel, meaning they neither show up in traces nor
+in /proc/kallsyms. This enables export of these addresses, which can
+be used for debugging/tracing. If bpf_jit_harden is enabled, this
+feature is disabled.
Values :
0 - disable JIT kallsyms export (default value)
1 - enable JIT kallsyms export for privileged users only
diff --git a/Makefile b/Makefile
index 235826f..dda88e7 100644
--- a/Makefile
+++ b/Makefile
@@ -396,7 +396,7 @@
KBUILD_CPPFLAGS := -D__KERNEL__
KBUILD_CFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \
- -fno-strict-aliasing -fno-common \
+ -fno-strict-aliasing -fno-common -fshort-wchar \
-Werror-implicit-function-declaration \
-Wno-format-security \
-std=gnu89 $(call cc-option,-fno-PIE)
@@ -442,7 +442,7 @@
# ===========================================================================
# Rules shared between *config targets and build targets
-# Basic helpers built in scripts/
+# Basic helpers built in scripts/basic/
PHONY += scripts_basic
scripts_basic:
$(Q)$(MAKE) $(build)=scripts/basic
@@ -505,7 +505,7 @@
endif
endif
endif
-# install and module_install need also be processed one by one
+# install and modules_install need also be processed one by one
ifneq ($(filter install,$(MAKECMDGOALS)),)
ifneq ($(filter modules_install,$(MAKECMDGOALS)),)
mixed-targets := 1
@@ -964,7 +964,7 @@
export KBUILD_VMLINUX_LIBS := $(libs-y1)
export KBUILD_LDS := arch/$(SRCARCH)/kernel/vmlinux.lds
export LDFLAGS_vmlinux
-# used by scripts/pacmage/Makefile
+# used by scripts/package/Makefile
export KBUILD_ALLDIRS := $(sort $(filter-out arch/%,$(vmlinux-alldirs)) arch Documentation include samples scripts tools)
vmlinux-deps := $(KBUILD_LDS) $(KBUILD_VMLINUX_INIT) $(KBUILD_VMLINUX_MAIN) $(KBUILD_VMLINUX_LIBS)
@@ -992,8 +992,8 @@
ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(SRCARCH)/Makefile.postlink)
# Final link of vmlinux with optional arch pass after final link
- cmd_link-vmlinux = \
- $(CONFIG_SHELL) $< $(LD) $(LDFLAGS) $(LDFLAGS_vmlinux) ; \
+cmd_link-vmlinux = \
+ $(CONFIG_SHELL) $< $(LD) $(LDFLAGS) $(LDFLAGS_vmlinux) ; \
$(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true)
vmlinux: scripts/link-vmlinux.sh vmlinux_prereq $(vmlinux-deps) FORCE
@@ -1184,6 +1184,7 @@
kselftest:
$(Q)$(MAKE) -C tools/testing/selftests run_tests
+PHONY += kselftest-clean
kselftest-clean:
$(Q)$(MAKE) -C tools/testing/selftests clean
diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig
index a545969..7db85ab 100644
--- a/arch/arc/Kconfig
+++ b/arch/arc/Kconfig
@@ -96,7 +96,6 @@
menu "ARC Platform/SoC/Board"
-source "arch/arc/plat-sim/Kconfig"
source "arch/arc/plat-tb10x/Kconfig"
source "arch/arc/plat-axs10x/Kconfig"
#New platform adds here
diff --git a/arch/arc/Makefile b/arch/arc/Makefile
index 44ef35d..3a61cfc 100644
--- a/arch/arc/Makefile
+++ b/arch/arc/Makefile
@@ -107,7 +107,7 @@
# w/o this dtb won't embed into kernel binary
core-y += arch/arc/boot/dts/
-core-$(CONFIG_ARC_PLAT_SIM) += arch/arc/plat-sim/
+core-y += arch/arc/plat-sim/
core-$(CONFIG_ARC_PLAT_TB10X) += arch/arc/plat-tb10x/
core-$(CONFIG_ARC_PLAT_AXS10X) += arch/arc/plat-axs10x/
core-$(CONFIG_ARC_PLAT_EZNPS) += arch/arc/plat-eznps/
diff --git a/arch/arc/boot/dts/axc001.dtsi b/arch/arc/boot/dts/axc001.dtsi
index 53ce226..a380ffa 100644
--- a/arch/arc/boot/dts/axc001.dtsi
+++ b/arch/arc/boot/dts/axc001.dtsi
@@ -15,15 +15,15 @@
/ {
compatible = "snps,arc";
- #address-cells = <1>;
- #size-cells = <1>;
+ #address-cells = <2>;
+ #size-cells = <2>;
cpu_card {
compatible = "simple-bus";
#address-cells = <1>;
#size-cells = <1>;
- ranges = <0x00000000 0xf0000000 0x10000000>;
+ ranges = <0x00000000 0x0 0xf0000000 0x10000000>;
core_clk: core_clk {
#clock-cells = <0>;
@@ -91,23 +91,21 @@
mb_intc: dw-apb-ictl@0xe0012000 {
#interrupt-cells = <1>;
compatible = "snps,dw-apb-ictl";
- reg = < 0xe0012000 0x200 >;
+ reg = < 0x0 0xe0012000 0x0 0x200 >;
interrupt-controller;
interrupt-parent = <&core_intc>;
interrupts = < 7 >;
};
memory {
- #address-cells = <1>;
- #size-cells = <1>;
- ranges = <0x00000000 0x80000000 0x20000000>;
device_type = "memory";
- reg = <0x80000000 0x1b000000>; /* (512 - 32) MiB */
+ /* CONFIG_KERNEL_RAM_BASE_ADDRESS needs to match low mem start */
+ reg = <0x0 0x80000000 0x0 0x1b000000>; /* (512 - 32) MiB */
};
reserved-memory {
- #address-cells = <1>;
- #size-cells = <1>;
+ #address-cells = <2>;
+ #size-cells = <2>;
ranges;
/*
* We just move frame buffer area to the very end of
@@ -118,7 +116,7 @@
*/
frame_buffer: frame_buffer@9e000000 {
compatible = "shared-dma-pool";
- reg = <0x9e000000 0x2000000>;
+ reg = <0x0 0x9e000000 0x0 0x2000000>;
no-map;
};
};
diff --git a/arch/arc/boot/dts/axc003.dtsi b/arch/arc/boot/dts/axc003.dtsi
index 14df46f..cc9239e 100644
--- a/arch/arc/boot/dts/axc003.dtsi
+++ b/arch/arc/boot/dts/axc003.dtsi
@@ -14,15 +14,15 @@
/ {
compatible = "snps,arc";
- #address-cells = <1>;
- #size-cells = <1>;
+ #address-cells = <2>;
+ #size-cells = <2>;
cpu_card {
compatible = "simple-bus";
#address-cells = <1>;
#size-cells = <1>;
- ranges = <0x00000000 0xf0000000 0x10000000>;
+ ranges = <0x00000000 0x0 0xf0000000 0x10000000>;
core_clk: core_clk {
#clock-cells = <0>;
@@ -94,30 +94,29 @@
mb_intc: dw-apb-ictl@0xe0012000 {
#interrupt-cells = <1>;
compatible = "snps,dw-apb-ictl";
- reg = < 0xe0012000 0x200 >;
+ reg = < 0x0 0xe0012000 0x0 0x200 >;
interrupt-controller;
interrupt-parent = <&core_intc>;
interrupts = < 24 >;
};
memory {
- #address-cells = <1>;
- #size-cells = <1>;
- ranges = <0x00000000 0x80000000 0x40000000>;
device_type = "memory";
- reg = <0x80000000 0x20000000>; /* 512MiB */
+ /* CONFIG_KERNEL_RAM_BASE_ADDRESS needs to match low mem start */
+ reg = <0x0 0x80000000 0x0 0x20000000 /* 512 MiB low mem */
+ 0x1 0xc0000000 0x0 0x40000000>; /* 1 GiB highmem */
};
reserved-memory {
- #address-cells = <1>;
- #size-cells = <1>;
+ #address-cells = <2>;
+ #size-cells = <2>;
ranges;
/*
* Move frame buffer out of IOC aperture (0x8z-0xAz).
*/
frame_buffer: frame_buffer@be000000 {
compatible = "shared-dma-pool";
- reg = <0xbe000000 0x2000000>;
+ reg = <0x0 0xbe000000 0x0 0x2000000>;
no-map;
};
};
diff --git a/arch/arc/boot/dts/axc003_idu.dtsi b/arch/arc/boot/dts/axc003_idu.dtsi
index 695f9fa..4ebb2170 100644
--- a/arch/arc/boot/dts/axc003_idu.dtsi
+++ b/arch/arc/boot/dts/axc003_idu.dtsi
@@ -14,15 +14,15 @@
/ {
compatible = "snps,arc";
- #address-cells = <1>;
- #size-cells = <1>;
+ #address-cells = <2>;
+ #size-cells = <2>;
cpu_card {
compatible = "simple-bus";
#address-cells = <1>;
#size-cells = <1>;
- ranges = <0x00000000 0xf0000000 0x10000000>;
+ ranges = <0x00000000 0x0 0xf0000000 0x10000000>;
core_clk: core_clk {
#clock-cells = <0>;
@@ -100,30 +100,29 @@
mb_intc: dw-apb-ictl@0xe0012000 {
#interrupt-cells = <1>;
compatible = "snps,dw-apb-ictl";
- reg = < 0xe0012000 0x200 >;
+ reg = < 0x0 0xe0012000 0x0 0x200 >;
interrupt-controller;
interrupt-parent = <&idu_intc>;
interrupts = <0>;
};
memory {
- #address-cells = <1>;
- #size-cells = <1>;
- ranges = <0x00000000 0x80000000 0x40000000>;
device_type = "memory";
- reg = <0x80000000 0x20000000>; /* 512MiB */
+ /* CONFIG_KERNEL_RAM_BASE_ADDRESS needs to match low mem start */
+ reg = <0x0 0x80000000 0x0 0x20000000 /* 512 MiB low mem */
+ 0x1 0xc0000000 0x0 0x40000000>; /* 1 GiB highmem */
};
reserved-memory {
- #address-cells = <1>;
- #size-cells = <1>;
+ #address-cells = <2>;
+ #size-cells = <2>;
ranges;
/*
* Move frame buffer out of IOC aperture (0x8z-0xAz).
*/
frame_buffer: frame_buffer@be000000 {
compatible = "shared-dma-pool";
- reg = <0xbe000000 0x2000000>;
+ reg = <0x0 0xbe000000 0x0 0x2000000>;
no-map;
};
};
diff --git a/arch/arc/boot/dts/axs10x_mb.dtsi b/arch/arc/boot/dts/axs10x_mb.dtsi
index 41cfb29..0ff7e07 100644
--- a/arch/arc/boot/dts/axs10x_mb.dtsi
+++ b/arch/arc/boot/dts/axs10x_mb.dtsi
@@ -13,7 +13,7 @@
compatible = "simple-bus";
#address-cells = <1>;
#size-cells = <1>;
- ranges = <0x00000000 0xe0000000 0x10000000>;
+ ranges = <0x00000000 0x0 0xe0000000 0x10000000>;
interrupt-parent = <&mb_intc>;
i2sclk: i2sclk@100a0 {
diff --git a/arch/arc/configs/haps_hs_defconfig b/arch/arc/configs/haps_hs_defconfig
index 57b3e59..db04ea4 100644
--- a/arch/arc/configs/haps_hs_defconfig
+++ b/arch/arc/configs/haps_hs_defconfig
@@ -21,7 +21,6 @@
# CONFIG_BLK_DEV_BSG is not set
# CONFIG_IOSCHED_DEADLINE is not set
# CONFIG_IOSCHED_CFQ is not set
-CONFIG_ARC_PLAT_SIM=y
CONFIG_ISA_ARCV2=y
CONFIG_ARC_BUILTIN_DTB_NAME="haps_hs"
CONFIG_PREEMPT=y
diff --git a/arch/arc/configs/haps_hs_smp_defconfig b/arch/arc/configs/haps_hs_smp_defconfig
index f85985ad..821a2e5 100644
--- a/arch/arc/configs/haps_hs_smp_defconfig
+++ b/arch/arc/configs/haps_hs_smp_defconfig
@@ -23,7 +23,6 @@
# CONFIG_BLK_DEV_BSG is not set
# CONFIG_IOSCHED_DEADLINE is not set
# CONFIG_IOSCHED_CFQ is not set
-CONFIG_ARC_PLAT_SIM=y
CONFIG_ISA_ARCV2=y
CONFIG_SMP=y
CONFIG_ARC_BUILTIN_DTB_NAME="haps_hs_idu"
diff --git a/arch/arc/configs/nps_defconfig b/arch/arc/configs/nps_defconfig
index ede625c..7c9c706 100644
--- a/arch/arc/configs/nps_defconfig
+++ b/arch/arc/configs/nps_defconfig
@@ -39,7 +39,6 @@
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
# CONFIG_INET_DIAG is not set
# CONFIG_IPV6 is not set
# CONFIG_WIRELESS is not set
diff --git a/arch/arc/configs/nsim_700_defconfig b/arch/arc/configs/nsim_700_defconfig
index b0066a7..6dff83a 100644
--- a/arch/arc/configs/nsim_700_defconfig
+++ b/arch/arc/configs/nsim_700_defconfig
@@ -23,7 +23,6 @@
# CONFIG_BLK_DEV_BSG is not set
# CONFIG_IOSCHED_DEADLINE is not set
# CONFIG_IOSCHED_CFQ is not set
-CONFIG_ARC_PLAT_SIM=y
CONFIG_ARC_BUILTIN_DTB_NAME="nsim_700"
CONFIG_PREEMPT=y
# CONFIG_COMPACTION is not set
diff --git a/arch/arc/configs/nsim_hs_defconfig b/arch/arc/configs/nsim_hs_defconfig
index ebe9ebb..31ee51b 100644
--- a/arch/arc/configs/nsim_hs_defconfig
+++ b/arch/arc/configs/nsim_hs_defconfig
@@ -26,7 +26,6 @@
# CONFIG_BLK_DEV_BSG is not set
# CONFIG_IOSCHED_DEADLINE is not set
# CONFIG_IOSCHED_CFQ is not set
-CONFIG_ARC_PLAT_SIM=y
CONFIG_ISA_ARCV2=y
CONFIG_ARC_BUILTIN_DTB_NAME="nsim_hs"
CONFIG_PREEMPT=y
diff --git a/arch/arc/configs/nsim_hs_smp_defconfig b/arch/arc/configs/nsim_hs_smp_defconfig
index 4bde432..8d3b1f6 100644
--- a/arch/arc/configs/nsim_hs_smp_defconfig
+++ b/arch/arc/configs/nsim_hs_smp_defconfig
@@ -24,7 +24,6 @@
# CONFIG_BLK_DEV_BSG is not set
# CONFIG_IOSCHED_DEADLINE is not set
# CONFIG_IOSCHED_CFQ is not set
-CONFIG_ARC_PLAT_SIM=y
CONFIG_ISA_ARCV2=y
CONFIG_SMP=y
CONFIG_ARC_BUILTIN_DTB_NAME="nsim_hs_idu"
diff --git a/arch/arc/configs/nsimosci_defconfig b/arch/arc/configs/nsimosci_defconfig
index f6fb3d26..6168ce2 100644
--- a/arch/arc/configs/nsimosci_defconfig
+++ b/arch/arc/configs/nsimosci_defconfig
@@ -23,7 +23,6 @@
# CONFIG_BLK_DEV_BSG is not set
# CONFIG_IOSCHED_DEADLINE is not set
# CONFIG_IOSCHED_CFQ is not set
-CONFIG_ARC_PLAT_SIM=y
CONFIG_ARC_BUILTIN_DTB_NAME="nsimosci"
# CONFIG_COMPACTION is not set
CONFIG_NET=y
diff --git a/arch/arc/configs/nsimosci_hs_defconfig b/arch/arc/configs/nsimosci_hs_defconfig
index b9f0fe0..a70bdeb 100644
--- a/arch/arc/configs/nsimosci_hs_defconfig
+++ b/arch/arc/configs/nsimosci_hs_defconfig
@@ -23,7 +23,6 @@
# CONFIG_BLK_DEV_BSG is not set
# CONFIG_IOSCHED_DEADLINE is not set
# CONFIG_IOSCHED_CFQ is not set
-CONFIG_ARC_PLAT_SIM=y
CONFIG_ISA_ARCV2=y
CONFIG_ARC_BUILTIN_DTB_NAME="nsimosci_hs"
# CONFIG_COMPACTION is not set
diff --git a/arch/arc/configs/nsimosci_hs_smp_defconfig b/arch/arc/configs/nsimosci_hs_smp_defconfig
index 155add7..ef96406 100644
--- a/arch/arc/configs/nsimosci_hs_smp_defconfig
+++ b/arch/arc/configs/nsimosci_hs_smp_defconfig
@@ -18,7 +18,6 @@
# CONFIG_BLK_DEV_BSG is not set
# CONFIG_IOSCHED_DEADLINE is not set
# CONFIG_IOSCHED_CFQ is not set
-CONFIG_ARC_PLAT_SIM=y
CONFIG_ISA_ARCV2=y
CONFIG_SMP=y
# CONFIG_ARC_TIMERS_64BIT is not set
diff --git a/arch/arc/configs/tb10x_defconfig b/arch/arc/configs/tb10x_defconfig
index 4c51183..f301825 100644
--- a/arch/arc/configs/tb10x_defconfig
+++ b/arch/arc/configs/tb10x_defconfig
@@ -38,7 +38,6 @@
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
# CONFIG_INET_DIAG is not set
# CONFIG_IPV6 is not set
# CONFIG_WIRELESS is not set
diff --git a/arch/arc/include/asm/cache.h b/arch/arc/include/asm/cache.h
index 19ebddf..02fd1ce 100644
--- a/arch/arc/include/asm/cache.h
+++ b/arch/arc/include/asm/cache.h
@@ -96,7 +96,9 @@
#define ARC_REG_SLC_FLUSH 0x904
#define ARC_REG_SLC_INVALIDATE 0x905
#define ARC_REG_SLC_RGN_START 0x914
+#define ARC_REG_SLC_RGN_START1 0x915
#define ARC_REG_SLC_RGN_END 0x916
+#define ARC_REG_SLC_RGN_END1 0x917
/* Bit val in SLC_CONTROL */
#define SLC_CTRL_DIS 0x001
diff --git a/arch/arc/include/asm/mmu.h b/arch/arc/include/asm/mmu.h
index db7319e..efb79fa 100644
--- a/arch/arc/include/asm/mmu.h
+++ b/arch/arc/include/asm/mmu.h
@@ -94,6 +94,8 @@
return IS_ENABLED(CONFIG_ARC_HAS_PAE40);
}
+extern int pae40_exist_but_not_enab(void);
+
#endif /* !__ASSEMBLY__ */
#endif
diff --git a/arch/arc/kernel/intc-arcv2.c b/arch/arc/kernel/intc-arcv2.c
index f928795..cf90714 100644
--- a/arch/arc/kernel/intc-arcv2.c
+++ b/arch/arc/kernel/intc-arcv2.c
@@ -75,10 +75,13 @@
* Set a default priority for all available interrupts to prevent
* switching of register banks if Fast IRQ and multiple register banks
* are supported by CPU.
+ * Also disable all IRQ lines so faulty external hardware won't
+ * trigger interrupt that kernel is not ready to handle.
*/
for (i = NR_EXCEPTIONS; i < irq_bcr.irqs + NR_EXCEPTIONS; i++) {
write_aux_reg(AUX_IRQ_SELECT, i);
write_aux_reg(AUX_IRQ_PRIORITY, ARCV2_IRQ_DEF_PRIO);
+ write_aux_reg(AUX_IRQ_ENABLE, 0);
}
/* setup status32, don't enable intr yet as kernel doesn't want */
diff --git a/arch/arc/kernel/intc-compact.c b/arch/arc/kernel/intc-compact.c
index 7e608c6..cef3880 100644
--- a/arch/arc/kernel/intc-compact.c
+++ b/arch/arc/kernel/intc-compact.c
@@ -27,7 +27,7 @@
*/
void arc_init_IRQ(void)
{
- int level_mask = 0;
+ int level_mask = 0, i;
/* Is timer high priority Interrupt (Level2 in ARCompact jargon) */
level_mask |= IS_ENABLED(CONFIG_ARC_COMPACT_IRQ_LEVELS) << TIMER0_IRQ;
@@ -40,6 +40,18 @@
if (level_mask)
pr_info("Level-2 interrupts bitset %x\n", level_mask);
+
+ /*
+ * Disable all IRQ lines so faulty external hardware won't
+ * trigger interrupt that kernel is not ready to handle.
+ */
+ for (i = TIMER0_IRQ; i < NR_CPU_IRQS; i++) {
+ unsigned int ienb;
+
+ ienb = read_aux_reg(AUX_IENABLE);
+ ienb &= ~(1 << i);
+ write_aux_reg(AUX_IENABLE, ienb);
+ }
}
/*
diff --git a/arch/arc/mm/cache.c b/arch/arc/mm/cache.c
index a867575..7db283b 100644
--- a/arch/arc/mm/cache.c
+++ b/arch/arc/mm/cache.c
@@ -665,6 +665,7 @@
static DEFINE_SPINLOCK(lock);
unsigned long flags;
unsigned int ctrl;
+ phys_addr_t end;
spin_lock_irqsave(&lock, flags);
@@ -694,8 +695,19 @@
* END needs to be setup before START (latter triggers the operation)
* END can't be same as START, so add (l2_line_sz - 1) to sz
*/
- write_aux_reg(ARC_REG_SLC_RGN_END, (paddr + sz + l2_line_sz - 1));
- write_aux_reg(ARC_REG_SLC_RGN_START, paddr);
+ end = paddr + sz + l2_line_sz - 1;
+ if (is_pae40_enabled())
+ write_aux_reg(ARC_REG_SLC_RGN_END1, upper_32_bits(end));
+
+ write_aux_reg(ARC_REG_SLC_RGN_END, lower_32_bits(end));
+
+ if (is_pae40_enabled())
+ write_aux_reg(ARC_REG_SLC_RGN_START1, upper_32_bits(paddr));
+
+ write_aux_reg(ARC_REG_SLC_RGN_START, lower_32_bits(paddr));
+
+ /* Make sure "busy" bit reports correct stataus, see STAR 9001165532 */
+ read_aux_reg(ARC_REG_SLC_CTRL);
while (read_aux_reg(ARC_REG_SLC_CTRL) & SLC_CTRL_BUSY);
@@ -1111,6 +1123,13 @@
__dc_enable();
}
+/*
+ * Cache related boot time checks/setups only needed on master CPU:
+ * - Geometry checks (kernel build and hardware agree: e.g. L1_CACHE_BYTES)
+ * Assume SMP only, so all cores will have same cache config. A check on
+ * one core suffices for all
+ * - IOC setup / dma callbacks only need to be done once
+ */
void __init arc_cache_init_master(void)
{
unsigned int __maybe_unused cpu = smp_processor_id();
@@ -1190,12 +1209,27 @@
printk(arc_cache_mumbojumbo(0, str, sizeof(str)));
- /*
- * Only master CPU needs to execute rest of function:
- * - Assume SMP so all cores will have same cache config so
- * any geomtry checks will be same for all
- * - IOC setup / dma callbacks only need to be setup once
- */
if (!cpu)
arc_cache_init_master();
+
+ /*
+ * In PAE regime, TLB and cache maintenance ops take wider addresses
+ * And even if PAE is not enabled in kernel, the upper 32-bits still need
+ * to be zeroed to keep the ops sane.
+ * As an optimization for more common !PAE enabled case, zero them out
+ * once at init, rather than checking/setting to 0 for every runtime op
+ */
+ if (is_isa_arcv2() && pae40_exist_but_not_enab()) {
+
+ if (IS_ENABLED(CONFIG_ARC_HAS_ICACHE))
+ write_aux_reg(ARC_REG_IC_PTAG_HI, 0);
+
+ if (IS_ENABLED(CONFIG_ARC_HAS_DCACHE))
+ write_aux_reg(ARC_REG_DC_PTAG_HI, 0);
+
+ if (l2_line_sz) {
+ write_aux_reg(ARC_REG_SLC_RGN_END1, 0);
+ write_aux_reg(ARC_REG_SLC_RGN_START1, 0);
+ }
+ }
}
diff --git a/arch/arc/mm/dma.c b/arch/arc/mm/dma.c
index 71d3eff..e9d9360 100644
--- a/arch/arc/mm/dma.c
+++ b/arch/arc/mm/dma.c
@@ -153,6 +153,19 @@
}
}
+/*
+ * arc_dma_map_page - map a portion of a page for streaming DMA
+ *
+ * Ensure that any data held in the cache is appropriately discarded
+ * or written back.
+ *
+ * The device owns this memory once this call has completed. The CPU
+ * can regain ownership by calling dma_unmap_page().
+ *
+ * Note: while it takes struct page as arg, caller can "abuse" it to pass
+ * a region larger than PAGE_SIZE, provided it is physically contiguous
+ * and this still works correctly
+ */
static dma_addr_t arc_dma_map_page(struct device *dev, struct page *page,
unsigned long offset, size_t size, enum dma_data_direction dir,
unsigned long attrs)
@@ -165,6 +178,24 @@
return plat_phys_to_dma(dev, paddr);
}
+/*
+ * arc_dma_unmap_page - unmap a buffer previously mapped through dma_map_page()
+ *
+ * After this call, reads by the CPU to the buffer are guaranteed to see
+ * whatever the device wrote there.
+ *
+ * Note: historically this routine was not implemented for ARC
+ */
+static void arc_dma_unmap_page(struct device *dev, dma_addr_t handle,
+ size_t size, enum dma_data_direction dir,
+ unsigned long attrs)
+{
+ phys_addr_t paddr = plat_dma_to_phys(dev, handle);
+
+ if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
+ _dma_cache_sync(paddr, size, dir);
+}
+
static int arc_dma_map_sg(struct device *dev, struct scatterlist *sg,
int nents, enum dma_data_direction dir, unsigned long attrs)
{
@@ -178,6 +209,18 @@
return nents;
}
+static void arc_dma_unmap_sg(struct device *dev, struct scatterlist *sg,
+ int nents, enum dma_data_direction dir,
+ unsigned long attrs)
+{
+ struct scatterlist *s;
+ int i;
+
+ for_each_sg(sg, s, nents, i)
+ arc_dma_unmap_page(dev, sg_dma_address(s), sg_dma_len(s), dir,
+ attrs);
+}
+
static void arc_dma_sync_single_for_cpu(struct device *dev,
dma_addr_t dma_handle, size_t size, enum dma_data_direction dir)
{
@@ -223,7 +266,9 @@
.free = arc_dma_free,
.mmap = arc_dma_mmap,
.map_page = arc_dma_map_page,
+ .unmap_page = arc_dma_unmap_page,
.map_sg = arc_dma_map_sg,
+ .unmap_sg = arc_dma_unmap_sg,
.sync_single_for_device = arc_dma_sync_single_for_device,
.sync_single_for_cpu = arc_dma_sync_single_for_cpu,
.sync_sg_for_cpu = arc_dma_sync_sg_for_cpu,
diff --git a/arch/arc/mm/tlb.c b/arch/arc/mm/tlb.c
index d0126fd..b181f3e 100644
--- a/arch/arc/mm/tlb.c
+++ b/arch/arc/mm/tlb.c
@@ -104,6 +104,8 @@
/* A copy of the ASID from the PID reg is kept in asid_cache */
DEFINE_PER_CPU(unsigned int, asid_cache) = MM_CTXT_FIRST_CYCLE;
+static int __read_mostly pae_exists;
+
/*
* Utility Routine to erase a J-TLB entry
* Caller needs to setup Index Reg (manually or via getIndex)
@@ -784,7 +786,7 @@
mmu->u_dtlb = mmu4->u_dtlb * 4;
mmu->u_itlb = mmu4->u_itlb * 4;
mmu->sasid = mmu4->sasid;
- mmu->pae = mmu4->pae;
+ pae_exists = mmu->pae = mmu4->pae;
}
}
@@ -809,6 +811,11 @@
return buf;
}
+int pae40_exist_but_not_enab(void)
+{
+ return pae_exists && !is_pae40_enabled();
+}
+
void arc_mmu_init(void)
{
char str[256];
@@ -859,6 +866,9 @@
/* swapper_pg_dir is the pgd for the kernel, used by vmalloc */
write_aux_reg(ARC_REG_SCRATCH_DATA0, swapper_pg_dir);
#endif
+
+ if (pae40_exist_but_not_enab())
+ write_aux_reg(ARC_REG_TLBPD1HI, 0);
}
/*
diff --git a/arch/arc/plat-sim/Kconfig b/arch/arc/plat-sim/Kconfig
deleted file mode 100644
index ac6af96..0000000
--- a/arch/arc/plat-sim/Kconfig
+++ /dev/null
@@ -1,13 +0,0 @@
-#
-# Copyright (C) 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
-#
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License version 2 as
-# published by the Free Software Foundation.
-#
-
-menuconfig ARC_PLAT_SIM
- bool "ARC nSIM based simulation virtual platforms"
- help
- Support for nSIM based ARC simulation platforms
- This includes the standalone nSIM (uart only) vs. System C OSCI VP
diff --git a/arch/arc/plat-sim/platform.c b/arch/arc/plat-sim/platform.c
index aea8738..5cda56b 100644
--- a/arch/arc/plat-sim/platform.c
+++ b/arch/arc/plat-sim/platform.c
@@ -20,11 +20,14 @@
*/
static const char *simulation_compat[] __initconst = {
+#ifdef CONFIG_ISA_ARCOMPACT
"snps,nsim",
- "snps,nsim_hs",
"snps,nsimosci",
+#else
+ "snps,nsim_hs",
"snps,nsimosci_hs",
"snps,zebu_hs",
+#endif
NULL,
};
diff --git a/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi b/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi
index f92f957..a183b562 100644
--- a/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi
+++ b/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi
@@ -266,6 +266,7 @@
&hdmicec {
status = "okay";
+ needs-hpd;
};
&hsi2c_4 {
diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig
index d735e5f..195da38 100644
--- a/arch/arm/mach-at91/Kconfig
+++ b/arch/arm/mach-at91/Kconfig
@@ -1,7 +1,7 @@
menuconfig ARCH_AT91
bool "Atmel SoCs"
depends on ARCH_MULTI_V4T || ARCH_MULTI_V5 || ARCH_MULTI_V7 || ARM_SINGLE_ARMV7M
- select ARM_CPU_SUSPEND if PM
+ select ARM_CPU_SUSPEND if PM && ARCH_MULTI_V7
select COMMON_CLK_AT91
select GPIOLIB
select PINCTRL
diff --git a/arch/arm/mach-at91/pm.c b/arch/arm/mach-at91/pm.c
index 667fdda..5036f99 100644
--- a/arch/arm/mach-at91/pm.c
+++ b/arch/arm/mach-at91/pm.c
@@ -608,6 +608,9 @@
void __init at91rm9200_pm_init(void)
{
+ if (!IS_ENABLED(CONFIG_SOC_AT91RM9200))
+ return;
+
at91_dt_ramc();
/*
@@ -620,18 +623,27 @@
void __init at91sam9_pm_init(void)
{
+ if (!IS_ENABLED(CONFIG_SOC_AT91SAM9))
+ return;
+
at91_dt_ramc();
at91_pm_init(at91sam9_idle);
}
void __init sama5_pm_init(void)
{
+ if (!IS_ENABLED(CONFIG_SOC_SAMA5))
+ return;
+
at91_dt_ramc();
at91_pm_init(NULL);
}
void __init sama5d2_pm_init(void)
{
+ if (!IS_ENABLED(CONFIG_SOC_SAMA5D2))
+ return;
+
at91_pm_backup_init();
sama5_pm_init();
}
diff --git a/arch/arm64/kernel/fpsimd.c b/arch/arm64/kernel/fpsimd.c
index 06da8ea..c7b4995 100644
--- a/arch/arm64/kernel/fpsimd.c
+++ b/arch/arm64/kernel/fpsimd.c
@@ -161,9 +161,11 @@
{
if (!system_supports_fpsimd())
return;
+ preempt_disable();
memset(¤t->thread.fpsimd_state, 0, sizeof(struct fpsimd_state));
fpsimd_flush_task_state(current);
set_thread_flag(TIF_FOREIGN_FPSTATE);
+ preempt_enable();
}
/*
diff --git a/arch/arm64/kernel/head.S b/arch/arm64/kernel/head.S
index 973df7d..adb0910 100644
--- a/arch/arm64/kernel/head.S
+++ b/arch/arm64/kernel/head.S
@@ -354,7 +354,6 @@
tst x23, ~(MIN_KIMG_ALIGN - 1) // already running randomized?
b.ne 0f
mov x0, x21 // pass FDT address in x0
- mov x1, x23 // pass modulo offset in x1
bl kaslr_early_init // parse FDT for KASLR options
cbz x0, 0f // KASLR disabled? just proceed
orr x23, x23, x0 // record KASLR offset
diff --git a/arch/arm64/kernel/kaslr.c b/arch/arm64/kernel/kaslr.c
index a9710ef..47080c4 100644
--- a/arch/arm64/kernel/kaslr.c
+++ b/arch/arm64/kernel/kaslr.c
@@ -75,7 +75,7 @@
* containing function pointers) to be reinitialized, and zero-initialized
* .bss variables will be reset to 0.
*/
-u64 __init kaslr_early_init(u64 dt_phys, u64 modulo_offset)
+u64 __init kaslr_early_init(u64 dt_phys)
{
void *fdt;
u64 seed, offset, mask, module_range;
@@ -131,15 +131,17 @@
/*
* The kernel Image should not extend across a 1GB/32MB/512MB alignment
* boundary (for 4KB/16KB/64KB granule kernels, respectively). If this
- * happens, increase the KASLR offset by the size of the kernel image
- * rounded up by SWAPPER_BLOCK_SIZE.
+ * happens, round down the KASLR offset by (1 << SWAPPER_TABLE_SHIFT).
+ *
+ * NOTE: The references to _text and _end below will already take the
+ * modulo offset (the physical displacement modulo 2 MB) into
+ * account, given that the physical placement is controlled by
+ * the loader, and will not change as a result of the virtual
+ * mapping we choose.
*/
- if ((((u64)_text + offset + modulo_offset) >> SWAPPER_TABLE_SHIFT) !=
- (((u64)_end + offset + modulo_offset) >> SWAPPER_TABLE_SHIFT)) {
- u64 kimg_sz = _end - _text;
- offset = (offset + round_up(kimg_sz, SWAPPER_BLOCK_SIZE))
- & mask;
- }
+ if ((((u64)_text + offset) >> SWAPPER_TABLE_SHIFT) !=
+ (((u64)_end + offset) >> SWAPPER_TABLE_SHIFT))
+ offset = round_down(offset, 1 << SWAPPER_TABLE_SHIFT);
if (IS_ENABLED(CONFIG_KASAN))
/*
diff --git a/arch/arm64/mm/fault.c b/arch/arm64/mm/fault.c
index 2509e4f..1f22a41 100644
--- a/arch/arm64/mm/fault.c
+++ b/arch/arm64/mm/fault.c
@@ -435,8 +435,11 @@
* the mmap_sem because it would already be released
* in __lock_page_or_retry in mm/filemap.c.
*/
- if (fatal_signal_pending(current))
+ if (fatal_signal_pending(current)) {
+ if (!user_mode(regs))
+ goto no_context;
return 0;
+ }
/*
* Clear FAULT_FLAG_ALLOW_RETRY to avoid any risk of
diff --git a/arch/sparc/include/asm/page_32.h b/arch/sparc/include/asm/page_32.h
index 0efd058..6249214 100644
--- a/arch/sparc/include/asm/page_32.h
+++ b/arch/sparc/include/asm/page_32.h
@@ -68,6 +68,7 @@
#define iopgprot_val(x) ((x).iopgprot)
#define __pte(x) ((pte_t) { (x) } )
+#define __pmd(x) ((pmd_t) { { (x) }, })
#define __iopte(x) ((iopte_t) { (x) } )
#define __pgd(x) ((pgd_t) { (x) } )
#define __ctxd(x) ((ctxd_t) { (x) } )
@@ -95,6 +96,7 @@
#define iopgprot_val(x) (x)
#define __pte(x) (x)
+#define __pmd(x) ((pmd_t) { { (x) }, })
#define __iopte(x) (x)
#define __pgd(x) (x)
#define __ctxd(x) (x)
diff --git a/arch/sparc/kernel/pci_sun4v.c b/arch/sparc/kernel/pci_sun4v.c
index f10e2f7..9ebebf1 100644
--- a/arch/sparc/kernel/pci_sun4v.c
+++ b/arch/sparc/kernel/pci_sun4v.c
@@ -1266,8 +1266,6 @@
* ATU group, but ATU hcalls won't be available.
*/
hv_atu = false;
- pr_err(PFX "Could not register hvapi ATU err=%d\n",
- err);
} else {
pr_info(PFX "Registered hvapi ATU major[%lu] minor[%lu]\n",
vatu_major, vatu_minor);
diff --git a/arch/sparc/kernel/pcic.c b/arch/sparc/kernel/pcic.c
index a38787b..732af9a 100644
--- a/arch/sparc/kernel/pcic.c
+++ b/arch/sparc/kernel/pcic.c
@@ -602,7 +602,7 @@
{
struct pci_dev *dev;
int i, has_io, has_mem;
- unsigned int cmd;
+ unsigned int cmd = 0;
struct linux_pcic *pcic;
/* struct linux_pbm_info* pbm = &pcic->pbm; */
int node;
diff --git a/arch/sparc/lib/multi3.S b/arch/sparc/lib/multi3.S
index d6b6c97..703127a 100644
--- a/arch/sparc/lib/multi3.S
+++ b/arch/sparc/lib/multi3.S
@@ -5,26 +5,26 @@
.align 4
ENTRY(__multi3) /* %o0 = u, %o1 = v */
mov %o1, %g1
- srl %o3, 0, %g4
- mulx %g4, %g1, %o1
+ srl %o3, 0, %o4
+ mulx %o4, %g1, %o1
srlx %g1, 0x20, %g3
- mulx %g3, %g4, %g5
- sllx %g5, 0x20, %o5
- srl %g1, 0, %g4
+ mulx %g3, %o4, %g7
+ sllx %g7, 0x20, %o5
+ srl %g1, 0, %o4
sub %o1, %o5, %o5
srlx %o5, 0x20, %o5
- addcc %g5, %o5, %g5
+ addcc %g7, %o5, %g7
srlx %o3, 0x20, %o5
- mulx %g4, %o5, %g4
+ mulx %o4, %o5, %o4
mulx %g3, %o5, %o5
sethi %hi(0x80000000), %g3
- addcc %g5, %g4, %g5
- srlx %g5, 0x20, %g5
+ addcc %g7, %o4, %g7
+ srlx %g7, 0x20, %g7
add %g3, %g3, %g3
movcc %xcc, %g0, %g3
- addcc %o5, %g5, %o5
- sllx %g4, 0x20, %g4
- add %o1, %g4, %o1
+ addcc %o5, %g7, %o5
+ sllx %o4, 0x20, %o4
+ add %o1, %o4, %o1
add %o5, %g3, %g2
mulx %g1, %o2, %g1
add %g1, %g2, %g1
diff --git a/drivers/acpi/acpica/nsxfeval.c b/drivers/acpi/acpica/nsxfeval.c
index 538c616..783f4c8 100644
--- a/drivers/acpi/acpica/nsxfeval.c
+++ b/drivers/acpi/acpica/nsxfeval.c
@@ -100,9 +100,13 @@
free_buffer_on_error = TRUE;
}
- status = acpi_get_handle(handle, pathname, &target_handle);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
+ if (pathname) {
+ status = acpi_get_handle(handle, pathname, &target_handle);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+ } else {
+ target_handle = handle;
}
full_pathname = acpi_ns_get_external_pathname(target_handle);
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index 62068a5..ae3d6d1 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -1741,7 +1741,7 @@
* functioning ECDT EC first in order to handle the events.
* https://bugzilla.kernel.org/show_bug.cgi?id=115021
*/
-int __init acpi_ec_ecdt_start(void)
+static int __init acpi_ec_ecdt_start(void)
{
acpi_handle handle;
@@ -2003,20 +2003,17 @@
int __init acpi_ec_init(void)
{
int result;
+ int ecdt_fail, dsdt_fail;
/* register workqueue for _Qxx evaluations */
result = acpi_ec_query_init();
if (result)
- goto err_exit;
- /* Now register the driver for the EC */
- result = acpi_bus_register_driver(&acpi_ec_driver);
- if (result)
- goto err_exit;
+ return result;
-err_exit:
- if (result)
- acpi_ec_query_exit();
- return result;
+ /* Drivers must be started after acpi_ec_query_init() */
+ ecdt_fail = acpi_ec_ecdt_start();
+ dsdt_fail = acpi_bus_register_driver(&acpi_ec_driver);
+ return ecdt_fail && dsdt_fail ? -ENODEV : 0;
}
/* EC driver currently not unloadable */
diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h
index 58dd7ab..3f5af4d 100644
--- a/drivers/acpi/internal.h
+++ b/drivers/acpi/internal.h
@@ -185,7 +185,6 @@
int acpi_ec_init(void);
int acpi_ec_ecdt_probe(void);
int acpi_ec_dsdt_probe(void);
-int acpi_ec_ecdt_start(void);
void acpi_ec_block_transactions(void);
void acpi_ec_unblock_transactions(void);
int acpi_ec_add_query_handler(struct acpi_ec *ec, u8 query_bit,
diff --git a/drivers/acpi/property.c b/drivers/acpi/property.c
index 917c789..476a52c 100644
--- a/drivers/acpi/property.c
+++ b/drivers/acpi/property.c
@@ -1047,7 +1047,7 @@
fwnode_for_each_child_node(fwnode, child) {
u32 nr;
- if (!fwnode_property_read_u32(fwnode, prop_name, &nr))
+ if (fwnode_property_read_u32(child, prop_name, &nr))
continue;
if (val == nr)
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 3389729..70fd550 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -2084,7 +2084,6 @@
acpi_gpe_apply_masked_gpes();
acpi_update_all_gpes();
- acpi_ec_ecdt_start();
acpi_scan_initialized = true;
diff --git a/drivers/gpio/gpio-mvebu.c b/drivers/gpio/gpio-mvebu.c
index e338c37..45c65f8 100644
--- a/drivers/gpio/gpio-mvebu.c
+++ b/drivers/gpio/gpio-mvebu.c
@@ -557,7 +557,7 @@
edge_cause = mvebu_gpio_read_edge_cause(mvchip);
edge_mask = mvebu_gpio_read_edge_mask(mvchip);
- cause = (data_in ^ level_mask) | (edge_cause & edge_mask);
+ cause = (data_in & level_mask) | (edge_cause & edge_mask);
for (i = 0; i < mvchip->chip.ngpio; i++) {
int irq;
diff --git a/drivers/gpio/gpiolib-sysfs.c b/drivers/gpio/gpiolib-sysfs.c
index 16fe974..fc80add 100644
--- a/drivers/gpio/gpiolib-sysfs.c
+++ b/drivers/gpio/gpiolib-sysfs.c
@@ -2,6 +2,7 @@
#include <linux/mutex.h>
#include <linux/device.h>
#include <linux/sysfs.h>
+#include <linux/gpio.h>
#include <linux/gpio/consumer.h>
#include <linux/gpio/driver.h>
#include <linux/interrupt.h>
@@ -432,6 +433,11 @@
};
ATTRIBUTE_GROUPS(gpiochip);
+static struct gpio_desc *gpio_to_valid_desc(int gpio)
+{
+ return gpio_is_valid(gpio) ? gpio_to_desc(gpio) : NULL;
+}
+
/*
* /sys/class/gpio/export ... write-only
* integer N ... number of GPIO to export (full access)
@@ -450,7 +456,7 @@
if (status < 0)
goto done;
- desc = gpio_to_desc(gpio);
+ desc = gpio_to_valid_desc(gpio);
/* reject invalid GPIOs */
if (!desc) {
pr_warn("%s: invalid GPIO %ld\n", __func__, gpio);
@@ -493,7 +499,7 @@
if (status < 0)
goto done;
- desc = gpio_to_desc(gpio);
+ desc = gpio_to_valid_desc(gpio);
/* reject bogus commands (gpio_unexport ignores them) */
if (!desc) {
pr_warn("%s: invalid GPIO %ld\n", __func__, gpio);
diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c
index c551d2b..739bd69 100644
--- a/drivers/infiniband/core/uverbs_cmd.c
+++ b/drivers/infiniband/core/uverbs_cmd.c
@@ -1015,7 +1015,7 @@
cq->uobject = &obj->uobject;
cq->comp_handler = ib_uverbs_comp_handler;
cq->event_handler = ib_uverbs_cq_event_handler;
- cq->cq_context = &ev_file->ev_queue;
+ cq->cq_context = ev_file ? &ev_file->ev_queue : NULL;
atomic_set(&cq->usecnt, 0);
obj->uobject.object = cq;
@@ -1522,6 +1522,7 @@
qp->qp_type = attr.qp_type;
atomic_set(&qp->usecnt, 0);
atomic_inc(&pd->usecnt);
+ qp->port = 0;
if (attr.send_cq)
atomic_inc(&attr.send_cq->usecnt);
if (attr.recv_cq)
@@ -1962,8 +1963,9 @@
attr->alt_timeout = cmd->base.alt_timeout;
attr->rate_limit = cmd->rate_limit;
- attr->ah_attr.type = rdma_ah_find_type(qp->device,
- cmd->base.dest.port_num);
+ if (cmd->base.attr_mask & IB_QP_AV)
+ attr->ah_attr.type = rdma_ah_find_type(qp->device,
+ cmd->base.dest.port_num);
if (cmd->base.dest.is_global) {
rdma_ah_set_grh(&attr->ah_attr, NULL,
cmd->base.dest.flow_label,
@@ -1981,8 +1983,9 @@
rdma_ah_set_port_num(&attr->ah_attr,
cmd->base.dest.port_num);
- attr->alt_ah_attr.type = rdma_ah_find_type(qp->device,
- cmd->base.dest.port_num);
+ if (cmd->base.attr_mask & IB_QP_ALT_PATH)
+ attr->alt_ah_attr.type =
+ rdma_ah_find_type(qp->device, cmd->base.dest.port_num);
if (cmd->base.alt_dest.is_global) {
rdma_ah_set_grh(&attr->alt_ah_attr, NULL,
cmd->base.alt_dest.flow_label,
diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c
index 7f8fe44..b456e3c 100644
--- a/drivers/infiniband/core/verbs.c
+++ b/drivers/infiniband/core/verbs.c
@@ -838,6 +838,7 @@
spin_lock_init(&qp->mr_lock);
INIT_LIST_HEAD(&qp->rdma_mrs);
INIT_LIST_HEAD(&qp->sig_mrs);
+ qp->port = 0;
if (qp_init_attr->qp_type == IB_QPT_XRC_TGT)
return ib_create_xrc_qp(qp, qp_init_attr);
@@ -1297,7 +1298,11 @@
if (ret)
return ret;
}
- return ib_security_modify_qp(qp, attr, attr_mask, udata);
+ ret = ib_security_modify_qp(qp, attr, attr_mask, udata);
+ if (!ret && (attr_mask & IB_QP_PORT))
+ qp->port = attr->port_num;
+
+ return ret;
}
EXPORT_SYMBOL(ib_modify_qp_with_udata);
diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c
index a7f2e60..f7fcde1 100644
--- a/drivers/infiniband/hw/mlx5/main.c
+++ b/drivers/infiniband/hw/mlx5/main.c
@@ -1085,6 +1085,12 @@
bool is_ib = (mlx5_ib_port_link_layer(ibdev, port) ==
IB_LINK_LAYER_INFINIBAND);
+ /* CM layer calls ib_modify_port() regardless of the link layer. For
+ * Ethernet ports, qkey violation and Port capabilities are meaningless.
+ */
+ if (!is_ib)
+ return 0;
+
if (MLX5_CAP_GEN(dev->mdev, ib_virt) && is_ib) {
change_mask = props->clr_port_cap_mask | props->set_port_cap_mask;
value = ~props->clr_port_cap_mask | props->set_port_cap_mask;
diff --git a/drivers/infiniband/hw/mlx5/qp.c b/drivers/infiniband/hw/mlx5/qp.c
index 0889ff3..f58f8f5 100644
--- a/drivers/infiniband/hw/mlx5/qp.c
+++ b/drivers/infiniband/hw/mlx5/qp.c
@@ -1238,6 +1238,7 @@
goto err_destroy_tis;
sq->base.container_mibqp = qp;
+ sq->base.mqp.event = mlx5_ib_qp_event;
}
if (qp->rq.wqe_cnt) {
diff --git a/drivers/memory/atmel-ebi.c b/drivers/memory/atmel-ebi.c
index 99e644c..ebf69ff 100644
--- a/drivers/memory/atmel-ebi.c
+++ b/drivers/memory/atmel-ebi.c
@@ -72,7 +72,7 @@
{ .name = nm, .converter = atmel_smc_cs_conf_set_pulse, .shift = pos}
#define ATMEL_SMC_CYCLE_XLATE(nm, pos) \
- { .name = nm, .converter = atmel_smc_cs_conf_set_setup, .shift = pos}
+ { .name = nm, .converter = atmel_smc_cs_conf_set_cycle, .shift = pos}
static void at91sam9_ebi_get_config(struct atmel_ebi_dev *ebid,
struct atmel_ebi_dev_config *conf)
@@ -120,12 +120,14 @@
if (!ret) {
required = true;
ncycles = DIV_ROUND_UP(val, clk_period_ns);
- if (ncycles > ATMEL_SMC_MODE_TDF_MAX ||
- ncycles < ATMEL_SMC_MODE_TDF_MIN) {
+ if (ncycles > ATMEL_SMC_MODE_TDF_MAX) {
ret = -EINVAL;
goto out;
}
+ if (ncycles < ATMEL_SMC_MODE_TDF_MIN)
+ ncycles = ATMEL_SMC_MODE_TDF_MIN;
+
smcconf->mode |= ATMEL_SMC_MODE_TDF(ncycles);
}
@@ -263,7 +265,7 @@
}
ret = atmel_ebi_xslate_smc_timings(ebid, np, &conf->smcconf);
- if (ret)
+ if (ret < 0)
return -EINVAL;
if ((ret > 0 && !required) || (!ret && required)) {
diff --git a/drivers/mfd/atmel-smc.c b/drivers/mfd/atmel-smc.c
index 954cf0f..20cc0ea 100644
--- a/drivers/mfd/atmel-smc.c
+++ b/drivers/mfd/atmel-smc.c
@@ -206,7 +206,7 @@
* parameter
*
* This function encodes the @ncycles value as described in the datasheet
- * (section "SMC Pulse Register"), and then stores the result in the
+ * (section "SMC Cycle Register"), and then stores the result in the
* @conf->setup field at @shift position.
*
* Returns -EINVAL if @shift is invalid, -ERANGE if @ncycles does not fit in
diff --git a/drivers/mfd/da9062-core.c b/drivers/mfd/da9062-core.c
index fbe0f24..fe18115 100644
--- a/drivers/mfd/da9062-core.c
+++ b/drivers/mfd/da9062-core.c
@@ -645,6 +645,9 @@
.range_min = DA9062AA_VLDO1_B,
.range_max = DA9062AA_VLDO4_B,
}, {
+ .range_min = DA9062AA_BBAT_CONT,
+ .range_max = DA9062AA_BBAT_CONT,
+ }, {
.range_min = DA9062AA_INTERFACE,
.range_max = DA9062AA_CONFIG_E,
}, {
@@ -721,6 +724,9 @@
.range_min = DA9062AA_VLDO1_B,
.range_max = DA9062AA_VLDO4_B,
}, {
+ .range_min = DA9062AA_BBAT_CONT,
+ .range_max = DA9062AA_BBAT_CONT,
+ }, {
.range_min = DA9062AA_GP_ID_0,
.range_max = DA9062AA_GP_ID_19,
},
diff --git a/drivers/net/ethernet/mellanox/mlx4/main.c b/drivers/net/ethernet/mellanox/mlx4/main.c
index 09b9bc1..5fe5cdc 100644
--- a/drivers/net/ethernet/mellanox/mlx4/main.c
+++ b/drivers/net/ethernet/mellanox/mlx4/main.c
@@ -432,7 +432,7 @@
/* Virtual PCI function needs to determine UAR page size from
* firmware. Only master PCI function can set the uar page size
*/
- if (enable_4k_uar)
+ if (enable_4k_uar || !dev->persist->num_vfs)
dev->uar_page_shift = DEFAULT_UAR_PAGE_SHIFT;
else
dev->uar_page_shift = PAGE_SHIFT;
@@ -2277,7 +2277,7 @@
dev->caps.max_fmr_maps = (1 << (32 - ilog2(dev->caps.num_mpts))) - 1;
- if (enable_4k_uar) {
+ if (enable_4k_uar || !dev->persist->num_vfs) {
init_hca.log_uar_sz = ilog2(dev->caps.num_uars) +
PAGE_SHIFT - DEFAULT_UAR_PAGE_SHIFT;
init_hca.uar_page_sz = DEFAULT_UAR_PAGE_SHIFT - 12;
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c
index 4631ca8b..9f77ce0 100644
--- a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c
+++ b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c
@@ -908,8 +908,7 @@
return NETDEV_TX_OK;
err_unmap:
- --f;
- while (f >= 0) {
+ while (--f >= 0) {
frag = &skb_shinfo(skb)->frags[f];
dma_unmap_page(dp->dev, tx_ring->txbufs[wr_idx].dma_addr,
skb_frag_size(frag), DMA_TO_DEVICE);
diff --git a/drivers/net/ethernet/qlogic/netxen/netxen_nic_hw.c b/drivers/net/ethernet/qlogic/netxen/netxen_nic_hw.c
index 66ff15d..0a66389 100644
--- a/drivers/net/ethernet/qlogic/netxen/netxen_nic_hw.c
+++ b/drivers/net/ethernet/qlogic/netxen/netxen_nic_hw.c
@@ -2311,7 +2311,7 @@
loop_cnt++) {
NX_WR_DUMP_REG(select_addr, adapter->ahw.pci_base0, queue_id);
read_addr = queueEntry->read_addr;
- for (k = 0; k < read_cnt; k--) {
+ for (k = 0; k < read_cnt; k++) {
NX_RD_DUMP_REG(read_addr, adapter->ahw.pci_base0,
&read_value);
*data_buff++ = read_value;
diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index 32ad873..0a2c0a4 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -1879,6 +1879,9 @@
err_detach:
tun_detach_all(dev);
+ /* register_netdevice() already called tun_free_netdev() */
+ goto err_free_dev;
+
err_free_flow:
tun_flow_uninit(tun);
security_tun_dev_free_security(tun->security);
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index da5570c..fdf65a6 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -514,7 +514,7 @@
*/
struct pci_dev *pci_find_pcie_root_port(struct pci_dev *dev)
{
- struct pci_dev *bridge, *highest_pcie_bridge = NULL;
+ struct pci_dev *bridge, *highest_pcie_bridge = dev;
bridge = pci_upstream_bridge(dev);
while (bridge && pci_is_pcie(bridge)) {
@@ -522,11 +522,10 @@
bridge = pci_upstream_bridge(bridge);
}
- if (highest_pcie_bridge &&
- pci_pcie_type(highest_pcie_bridge) == PCI_EXP_TYPE_ROOT_PORT)
- return highest_pcie_bridge;
+ if (pci_pcie_type(highest_pcie_bridge) != PCI_EXP_TYPE_ROOT_PORT)
+ return NULL;
- return NULL;
+ return highest_pcie_bridge;
}
EXPORT_SYMBOL(pci_find_pcie_root_port);
diff --git a/drivers/rtc/rtc-ds1307.c b/drivers/rtc/rtc-ds1307.c
index 4fac49e..4b43aa6 100644
--- a/drivers/rtc/rtc-ds1307.c
+++ b/drivers/rtc/rtc-ds1307.c
@@ -1301,7 +1301,6 @@
static const struct regmap_config regmap_config = {
.reg_bits = 8,
.val_bits = 8,
- .max_register = 0x12,
};
static int ds1307_probe(struct i2c_client *client,
diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig
index f4538d7..d145e0d 100644
--- a/drivers/scsi/Kconfig
+++ b/drivers/scsi/Kconfig
@@ -47,6 +47,17 @@
default n
depends on NET
+config SCSI_MQ_DEFAULT
+ bool "SCSI: use blk-mq I/O path by default"
+ depends on SCSI
+ ---help---
+ This option enables the new blk-mq based I/O path for SCSI
+ devices by default. With the option the scsi_mod.use_blk_mq
+ module/boot option defaults to Y, without it to N, but it can
+ still be overridden either way.
+
+ If unsure say N.
+
config SCSI_PROC_FS
bool "legacy /proc/scsi/ support"
depends on SCSI && PROC_FS
diff --git a/drivers/scsi/aacraid/aachba.c b/drivers/scsi/aacraid/aachba.c
index 4591113..a1a2c71 100644
--- a/drivers/scsi/aacraid/aachba.c
+++ b/drivers/scsi/aacraid/aachba.c
@@ -549,7 +549,9 @@
if ((le32_to_cpu(get_name_reply->status) == CT_OK)
&& (get_name_reply->data[0] != '\0')) {
char *sp = get_name_reply->data;
- sp[sizeof(((struct aac_get_name_resp *)NULL)->data)] = '\0';
+ int data_size = FIELD_SIZEOF(struct aac_get_name_resp, data);
+
+ sp[data_size - 1] = '\0';
while (*sp == ' ')
++sp;
if (*sp) {
@@ -579,12 +581,15 @@
static int aac_get_container_name(struct scsi_cmnd * scsicmd)
{
int status;
+ int data_size;
struct aac_get_name *dinfo;
struct fib * cmd_fibcontext;
struct aac_dev * dev;
dev = (struct aac_dev *)scsicmd->device->host->hostdata;
+ data_size = FIELD_SIZEOF(struct aac_get_name_resp, data);
+
cmd_fibcontext = aac_fib_alloc_tag(dev, scsicmd);
aac_fib_init(cmd_fibcontext);
@@ -593,7 +598,7 @@
dinfo->command = cpu_to_le32(VM_ContainerConfig);
dinfo->type = cpu_to_le32(CT_READ_NAME);
dinfo->cid = cpu_to_le32(scmd_id(scsicmd));
- dinfo->count = cpu_to_le32(sizeof(((struct aac_get_name_resp *)NULL)->data));
+ dinfo->count = cpu_to_le32(data_size - 1);
status = aac_fib_send(ContainerCommand,
cmd_fibcontext,
diff --git a/drivers/scsi/aacraid/aacraid.h b/drivers/scsi/aacraid/aacraid.h
index d31a9bc2..ee2667e 100644
--- a/drivers/scsi/aacraid/aacraid.h
+++ b/drivers/scsi/aacraid/aacraid.h
@@ -2274,7 +2274,7 @@
__le32 parm3;
__le32 parm4;
__le32 parm5;
- u8 data[16];
+ u8 data[17];
};
#define CT_CID_TO_32BITS_UID 165
diff --git a/drivers/scsi/csiostor/csio_hw.c b/drivers/scsi/csiostor/csio_hw.c
index 2029ad2..5be0086 100644
--- a/drivers/scsi/csiostor/csio_hw.c
+++ b/drivers/scsi/csiostor/csio_hw.c
@@ -3845,8 +3845,10 @@
if (csio_is_hw_ready(hw))
return 0;
- else
+ else if (csio_match_state(hw, csio_hws_uninit))
return -EINVAL;
+ else
+ return -ENODEV;
}
int
diff --git a/drivers/scsi/csiostor/csio_init.c b/drivers/scsi/csiostor/csio_init.c
index ea0c310..dcd0741 100644
--- a/drivers/scsi/csiostor/csio_init.c
+++ b/drivers/scsi/csiostor/csio_init.c
@@ -969,10 +969,14 @@
pci_set_drvdata(pdev, hw);
- if (csio_hw_start(hw) != 0) {
- dev_err(&pdev->dev,
- "Failed to start FW, continuing in debug mode.\n");
- return 0;
+ rv = csio_hw_start(hw);
+ if (rv) {
+ if (rv == -EINVAL) {
+ dev_err(&pdev->dev,
+ "Failed to start FW, continuing in debug mode.\n");
+ return 0;
+ }
+ goto err_lnode_exit;
}
sprintf(hw->fwrev_str, "%u.%u.%u.%u\n",
diff --git a/drivers/scsi/cxgbi/cxgb4i/cxgb4i.c b/drivers/scsi/cxgbi/cxgb4i/cxgb4i.c
index a69a9ac..1d02cf9 100644
--- a/drivers/scsi/cxgbi/cxgb4i/cxgb4i.c
+++ b/drivers/scsi/cxgbi/cxgb4i/cxgb4i.c
@@ -1635,6 +1635,9 @@
goto rel_resource;
}
+ if (!(n->nud_state & NUD_VALID))
+ neigh_event_send(n, NULL);
+
csk->atid = cxgb4_alloc_atid(lldi->tids, csk);
if (csk->atid < 0) {
pr_err("%s, NO atid available.\n", ndev->name);
diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c
index 316c3df..71c4746 100644
--- a/drivers/scsi/megaraid/megaraid_sas_base.c
+++ b/drivers/scsi/megaraid/megaraid_sas_base.c
@@ -6228,8 +6228,8 @@
fail_start_aen:
fail_io_attach:
megasas_mgmt_info.count--;
- megasas_mgmt_info.instance[megasas_mgmt_info.max_index] = NULL;
megasas_mgmt_info.max_index--;
+ megasas_mgmt_info.instance[megasas_mgmt_info.max_index] = NULL;
instance->instancet->disable_intr(instance);
megasas_destroy_irqs(instance);
diff --git a/drivers/scsi/scsi.c b/drivers/scsi/scsi.c
index 3d38c6d..1bf274e 100644
--- a/drivers/scsi/scsi.c
+++ b/drivers/scsi/scsi.c
@@ -800,7 +800,11 @@
module_param(scsi_logging_level, int, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(scsi_logging_level, "a bit mask of logging levels");
+#ifdef CONFIG_SCSI_MQ_DEFAULT
bool scsi_use_blk_mq = true;
+#else
+bool scsi_use_blk_mq = false;
+#endif
module_param_named(use_blk_mq, scsi_use_blk_mq, bool, S_IWUSR | S_IRUGO);
static int __init init_scsi(void)
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index bea36ad..e2647f2 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -1277,6 +1277,9 @@
{
struct request *rq = SCpnt->request;
+ if (SCpnt->flags & SCMD_ZONE_WRITE_LOCK)
+ sd_zbc_write_unlock_zone(SCpnt);
+
if (rq->rq_flags & RQF_SPECIAL_PAYLOAD)
__free_page(rq->special_vec.bv_page);
diff --git a/drivers/scsi/sd_zbc.c b/drivers/scsi/sd_zbc.c
index 96855df..8aa5477 100644
--- a/drivers/scsi/sd_zbc.c
+++ b/drivers/scsi/sd_zbc.c
@@ -294,6 +294,9 @@
test_and_set_bit(zno, sdkp->zones_wlock))
return BLKPREP_DEFER;
+ WARN_ON_ONCE(cmd->flags & SCMD_ZONE_WRITE_LOCK);
+ cmd->flags |= SCMD_ZONE_WRITE_LOCK;
+
return BLKPREP_OK;
}
@@ -302,9 +305,10 @@
struct request *rq = cmd->request;
struct scsi_disk *sdkp = scsi_disk(rq->rq_disk);
- if (sdkp->zones_wlock) {
+ if (sdkp->zones_wlock && cmd->flags & SCMD_ZONE_WRITE_LOCK) {
unsigned int zno = sd_zbc_zone_no(sdkp, blk_rq_pos(rq));
WARN_ON_ONCE(!test_bit(zno, sdkp->zones_wlock));
+ cmd->flags &= ~SCMD_ZONE_WRITE_LOCK;
clear_bit_unlock(zno, sdkp->zones_wlock);
smp_mb__after_atomic();
}
@@ -335,9 +339,6 @@
case REQ_OP_WRITE_ZEROES:
case REQ_OP_WRITE_SAME:
- /* Unlock the zone */
- sd_zbc_write_unlock_zone(cmd);
-
if (result &&
sshdr->sense_key == ILLEGAL_REQUEST &&
sshdr->asc == 0x21)
diff --git a/drivers/soc/ti/knav_qmss_queue.c b/drivers/soc/ti/knav_qmss_queue.c
index 279e7c5..39225de 100644
--- a/drivers/soc/ti/knav_qmss_queue.c
+++ b/drivers/soc/ti/knav_qmss_queue.c
@@ -745,6 +745,9 @@
bool slot_found;
int ret;
+ if (!kdev)
+ return ERR_PTR(-EPROBE_DEFER);
+
if (!kdev->dev)
return ERR_PTR(-ENODEV);
diff --git a/drivers/tty/pty.c b/drivers/tty/pty.c
index 1fc80ea..a6d5164 100644
--- a/drivers/tty/pty.c
+++ b/drivers/tty/pty.c
@@ -69,13 +69,8 @@
#ifdef CONFIG_UNIX98_PTYS
if (tty->driver == ptm_driver) {
mutex_lock(&devpts_mutex);
- if (tty->link->driver_data) {
- struct path *path = tty->link->driver_data;
-
- devpts_pty_kill(path->dentry);
- path_put(path);
- kfree(path);
- }
+ if (tty->link->driver_data)
+ devpts_pty_kill(tty->link->driver_data);
mutex_unlock(&devpts_mutex);
}
#endif
@@ -607,25 +602,24 @@
static struct cdev ptmx_cdev;
/**
- * pty_open_peer - open the peer of a pty
- * @tty: the peer of the pty being opened
+ * ptm_open_peer - open the peer of a pty
+ * @master: the open struct file of the ptmx device node
+ * @tty: the master of the pty being opened
+ * @flags: the flags for open
*
- * Open the cached dentry in tty->link, providing a safe way for userspace
- * to get the slave end of a pty (where they have the master fd and cannot
- * access or trust the mount namespace /dev/pts was mounted inside).
+ * Provide a race free way for userspace to open the slave end of a pty
+ * (where they have the master fd and cannot access or trust the mount
+ * namespace /dev/pts was mounted inside).
*/
-static struct file *pty_open_peer(struct tty_struct *tty, int flags)
-{
- if (tty->driver->subtype != PTY_TYPE_MASTER)
- return ERR_PTR(-EIO);
- return dentry_open(tty->link->driver_data, flags, current_cred());
-}
-
-static int pty_get_peer(struct tty_struct *tty, int flags)
+int ptm_open_peer(struct file *master, struct tty_struct *tty, int flags)
{
int fd = -1;
- struct file *filp = NULL;
+ struct file *filp;
int retval = -EINVAL;
+ struct path path;
+
+ if (tty->driver != ptm_driver)
+ return -EIO;
fd = get_unused_fd_flags(0);
if (fd < 0) {
@@ -633,7 +627,16 @@
goto err;
}
- filp = pty_open_peer(tty, flags);
+ /* Compute the slave's path */
+ path.mnt = devpts_mntget(master, tty->driver_data);
+ if (IS_ERR(path.mnt)) {
+ retval = PTR_ERR(path.mnt);
+ goto err_put;
+ }
+ path.dentry = tty->link->driver_data;
+
+ filp = dentry_open(&path, flags, current_cred());
+ mntput(path.mnt);
if (IS_ERR(filp)) {
retval = PTR_ERR(filp);
goto err_put;
@@ -662,8 +665,6 @@
return pty_get_pktmode(tty, (int __user *)arg);
case TIOCGPTN: /* Get PT Number */
return put_user(tty->index, (unsigned int __user *)arg);
- case TIOCGPTPEER: /* Open the other end */
- return pty_get_peer(tty, (int) arg);
case TIOCSIG: /* Send signal to other side of pty */
return pty_signal(tty, (int) arg);
}
@@ -791,9 +792,7 @@
{
struct pts_fs_info *fsi;
struct tty_struct *tty;
- struct path *pts_path;
struct dentry *dentry;
- struct vfsmount *mnt;
int retval;
int index;
@@ -806,7 +805,7 @@
if (retval)
return retval;
- fsi = devpts_acquire(filp, &mnt);
+ fsi = devpts_acquire(filp);
if (IS_ERR(fsi)) {
retval = PTR_ERR(fsi);
goto out_free_file;
@@ -846,28 +845,17 @@
retval = PTR_ERR(dentry);
goto err_release;
}
- /* We need to cache a fake path for TIOCGPTPEER. */
- pts_path = kmalloc(sizeof(struct path), GFP_KERNEL);
- if (!pts_path)
- goto err_release;
- pts_path->mnt = mnt;
- pts_path->dentry = dentry;
- path_get(pts_path);
- tty->link->driver_data = pts_path;
+ tty->link->driver_data = dentry;
retval = ptm_driver->ops->open(tty, filp);
if (retval)
- goto err_path_put;
+ goto err_release;
tty_debug_hangup(tty, "opening (count=%d)\n", tty->count);
tty_unlock(tty);
return 0;
-err_path_put:
- path_put(pts_path);
- kfree(pts_path);
err_release:
- mntput(mnt);
tty_unlock(tty);
// This will also put-ref the fsi
tty_release(inode, filp);
@@ -876,7 +864,6 @@
devpts_kill_index(fsi, index);
out_put_fsi:
devpts_release(fsi);
- mntput(mnt);
out_free_file:
tty_free_file(filp);
return retval;
diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c
index 974b13d..10c4038 100644
--- a/drivers/tty/tty_io.c
+++ b/drivers/tty/tty_io.c
@@ -2518,6 +2518,9 @@
case TIOCSSERIAL:
tty_warn_deprecated_flags(p);
break;
+ case TIOCGPTPEER:
+ /* Special because the struct file is needed */
+ return ptm_open_peer(file, tty, (int)arg);
default:
retval = tty_jobctrl_ioctl(tty, real_tty, file, cmd, arg);
if (retval != -ENOIOCTLCMD)
diff --git a/drivers/xen/Makefile b/drivers/xen/Makefile
index 8feab810..7f188b8 100644
--- a/drivers/xen/Makefile
+++ b/drivers/xen/Makefile
@@ -7,9 +7,6 @@
nostackp := $(call cc-option, -fno-stack-protector)
CFLAGS_features.o := $(nostackp)
-CFLAGS_efi.o += -fshort-wchar
-LDFLAGS += $(call ld-option, --no-wchar-size-warning)
-
dom0-$(CONFIG_ARM64) += arm-device.o
dom0-$(CONFIG_PCI) += pci.o
dom0-$(CONFIG_USB_SUPPORT) += dbgp.o
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 080e2eb..f45b61f 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -3516,7 +3516,7 @@
struct bio *bio = device->flush_bio;
if (!device->flush_bio_sent)
- return 0;
+ return BLK_STS_OK;
device->flush_bio_sent = 0;
wait_for_completion_io(&device->flush_wait);
@@ -3563,7 +3563,7 @@
continue;
write_dev_flush(dev);
- dev->last_flush_error = 0;
+ dev->last_flush_error = BLK_STS_OK;
}
/* wait for all the barriers */
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 95c2120..24bcd5c 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -7924,11 +7924,12 @@
return ret;
}
-static inline int submit_dio_repair_bio(struct inode *inode, struct bio *bio,
- int mirror_num)
+static inline blk_status_t submit_dio_repair_bio(struct inode *inode,
+ struct bio *bio,
+ int mirror_num)
{
struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
- int ret;
+ blk_status_t ret;
BUG_ON(bio_op(bio) == REQ_OP_WRITE);
@@ -7980,10 +7981,10 @@
return 1;
}
-static int dio_read_error(struct inode *inode, struct bio *failed_bio,
- struct page *page, unsigned int pgoff,
- u64 start, u64 end, int failed_mirror,
- bio_end_io_t *repair_endio, void *repair_arg)
+static blk_status_t dio_read_error(struct inode *inode, struct bio *failed_bio,
+ struct page *page, unsigned int pgoff,
+ u64 start, u64 end, int failed_mirror,
+ bio_end_io_t *repair_endio, void *repair_arg)
{
struct io_failure_record *failrec;
struct extent_io_tree *io_tree = &BTRFS_I(inode)->io_tree;
@@ -7993,18 +7994,19 @@
int read_mode = 0;
int segs;
int ret;
+ blk_status_t status;
BUG_ON(bio_op(failed_bio) == REQ_OP_WRITE);
ret = btrfs_get_io_failure_record(inode, start, end, &failrec);
if (ret)
- return ret;
+ return errno_to_blk_status(ret);
ret = btrfs_check_dio_repairable(inode, failed_bio, failrec,
failed_mirror);
if (!ret) {
free_io_failure(failure_tree, io_tree, failrec);
- return -EIO;
+ return BLK_STS_IOERR;
}
segs = bio_segments(failed_bio);
@@ -8022,13 +8024,13 @@
"Repair DIO Read Error: submitting new dio read[%#x] to this_mirror=%d, in_validation=%d\n",
read_mode, failrec->this_mirror, failrec->in_validation);
- ret = submit_dio_repair_bio(inode, bio, failrec->this_mirror);
- if (ret) {
+ status = submit_dio_repair_bio(inode, bio, failrec->this_mirror);
+ if (status) {
free_io_failure(failure_tree, io_tree, failrec);
bio_put(bio);
}
- return ret;
+ return status;
}
struct btrfs_retry_complete {
@@ -8065,8 +8067,8 @@
bio_put(bio);
}
-static int __btrfs_correct_data_nocsum(struct inode *inode,
- struct btrfs_io_bio *io_bio)
+static blk_status_t __btrfs_correct_data_nocsum(struct inode *inode,
+ struct btrfs_io_bio *io_bio)
{
struct btrfs_fs_info *fs_info;
struct bio_vec bvec;
@@ -8076,8 +8078,8 @@
unsigned int pgoff;
u32 sectorsize;
int nr_sectors;
- int ret;
- int err = 0;
+ blk_status_t ret;
+ blk_status_t err = BLK_STS_OK;
fs_info = BTRFS_I(inode)->root->fs_info;
sectorsize = fs_info->sectorsize;
@@ -8183,11 +8185,12 @@
int csum_pos;
bool uptodate = (err == 0);
int ret;
+ blk_status_t status;
fs_info = BTRFS_I(inode)->root->fs_info;
sectorsize = fs_info->sectorsize;
- err = 0;
+ err = BLK_STS_OK;
start = io_bio->logical;
done.inode = inode;
io_bio->bio.bi_iter = io_bio->iter;
@@ -8209,12 +8212,12 @@
done.start = start;
init_completion(&done.done);
- ret = dio_read_error(inode, &io_bio->bio, bvec.bv_page,
- pgoff, start, start + sectorsize - 1,
- io_bio->mirror_num,
- btrfs_retry_endio, &done);
- if (ret) {
- err = errno_to_blk_status(ret);
+ status = dio_read_error(inode, &io_bio->bio, bvec.bv_page,
+ pgoff, start, start + sectorsize - 1,
+ io_bio->mirror_num, btrfs_retry_endio,
+ &done);
+ if (status) {
+ err = status;
goto next;
}
@@ -8250,7 +8253,7 @@
if (unlikely(err))
return __btrfs_correct_data_nocsum(inode, io_bio);
else
- return 0;
+ return BLK_STS_OK;
} else {
return __btrfs_subio_endio_read(inode, io_bio, err);
}
@@ -8423,9 +8426,9 @@
return 0;
}
-static inline int __btrfs_submit_dio_bio(struct bio *bio, struct inode *inode,
- u64 file_offset, int skip_sum,
- int async_submit)
+static inline blk_status_t
+__btrfs_submit_dio_bio(struct bio *bio, struct inode *inode, u64 file_offset,
+ int skip_sum, int async_submit)
{
struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_dio_private *dip = bio->bi_private;
@@ -8488,6 +8491,7 @@
int clone_offset = 0;
int clone_len;
int ret;
+ blk_status_t status;
map_length = orig_bio->bi_iter.bi_size;
submit_len = map_length;
@@ -8537,9 +8541,9 @@
*/
atomic_inc(&dip->pending_bios);
- ret = __btrfs_submit_dio_bio(bio, inode, file_offset, skip_sum,
- async_submit);
- if (ret) {
+ status = __btrfs_submit_dio_bio(bio, inode, file_offset, skip_sum,
+ async_submit);
+ if (status) {
bio_put(bio);
atomic_dec(&dip->pending_bios);
goto out_err;
@@ -8557,9 +8561,9 @@
} while (submit_len > 0);
submit:
- ret = __btrfs_submit_dio_bio(bio, inode, file_offset, skip_sum,
- async_submit);
- if (!ret)
+ status = __btrfs_submit_dio_bio(bio, inode, file_offset, skip_sum,
+ async_submit);
+ if (!status)
return 0;
bio_put(bio);
diff --git a/fs/btrfs/raid56.c b/fs/btrfs/raid56.c
index 2086383..2cf6ba4 100644
--- a/fs/btrfs/raid56.c
+++ b/fs/btrfs/raid56.c
@@ -905,7 +905,7 @@
if (!atomic_dec_and_test(&rbio->stripes_pending))
return;
- err = 0;
+ err = BLK_STS_OK;
/* OK, we have read all the stripes we need to. */
max_errors = (rbio->operation == BTRFS_RBIO_PARITY_SCRUB) ?
@@ -1324,7 +1324,7 @@
return;
cleanup:
- rbio_orig_end_io(rbio, -EIO);
+ rbio_orig_end_io(rbio, BLK_STS_IOERR);
}
/*
@@ -1475,7 +1475,7 @@
cleanup:
- rbio_orig_end_io(rbio, -EIO);
+ rbio_orig_end_io(rbio, BLK_STS_IOERR);
}
static void async_rmw_stripe(struct btrfs_raid_bio *rbio)
@@ -1579,7 +1579,7 @@
return 0;
cleanup:
- rbio_orig_end_io(rbio, -EIO);
+ rbio_orig_end_io(rbio, BLK_STS_IOERR);
return -EIO;
finish:
@@ -1795,12 +1795,12 @@
void **pointers;
int faila = -1, failb = -1;
struct page *page;
- int err;
+ blk_status_t err;
int i;
pointers = kcalloc(rbio->real_stripes, sizeof(void *), GFP_NOFS);
if (!pointers) {
- err = -ENOMEM;
+ err = BLK_STS_RESOURCE;
goto cleanup_io;
}
@@ -1856,7 +1856,7 @@
* a bad data or Q stripe.
* TODO, we should redo the xor here.
*/
- err = -EIO;
+ err = BLK_STS_IOERR;
goto cleanup;
}
/*
@@ -1882,7 +1882,7 @@
if (rbio->bbio->raid_map[failb] == RAID6_Q_STRIPE) {
if (rbio->bbio->raid_map[faila] ==
RAID5_P_STRIPE) {
- err = -EIO;
+ err = BLK_STS_IOERR;
goto cleanup;
}
/*
@@ -1954,13 +1954,13 @@
}
}
- err = 0;
+ err = BLK_STS_OK;
cleanup:
kfree(pointers);
cleanup_io:
if (rbio->operation == BTRFS_RBIO_READ_REBUILD) {
- if (err == 0)
+ if (err == BLK_STS_OK)
cache_rbio_pages(rbio);
else
clear_bit(RBIO_CACHE_READY_BIT, &rbio->flags);
@@ -1968,7 +1968,7 @@
rbio_orig_end_io(rbio, err);
} else if (rbio->operation == BTRFS_RBIO_REBUILD_MISSING) {
rbio_orig_end_io(rbio, err);
- } else if (err == 0) {
+ } else if (err == BLK_STS_OK) {
rbio->faila = -1;
rbio->failb = -1;
@@ -2005,7 +2005,7 @@
return;
if (atomic_read(&rbio->error) > rbio->bbio->max_errors)
- rbio_orig_end_io(rbio, -EIO);
+ rbio_orig_end_io(rbio, BLK_STS_IOERR);
else
__raid_recover_end_io(rbio);
}
@@ -2104,7 +2104,7 @@
cleanup:
if (rbio->operation == BTRFS_RBIO_READ_REBUILD ||
rbio->operation == BTRFS_RBIO_REBUILD_MISSING)
- rbio_orig_end_io(rbio, -EIO);
+ rbio_orig_end_io(rbio, BLK_STS_IOERR);
return -EIO;
}
@@ -2431,7 +2431,7 @@
nr_data = bio_list_size(&bio_list);
if (!nr_data) {
/* Every parity is right */
- rbio_orig_end_io(rbio, 0);
+ rbio_orig_end_io(rbio, BLK_STS_OK);
return;
}
@@ -2451,7 +2451,7 @@
return;
cleanup:
- rbio_orig_end_io(rbio, -EIO);
+ rbio_orig_end_io(rbio, BLK_STS_IOERR);
}
static inline int is_data_stripe(struct btrfs_raid_bio *rbio, int stripe)
@@ -2519,7 +2519,7 @@
return;
cleanup:
- rbio_orig_end_io(rbio, -EIO);
+ rbio_orig_end_io(rbio, BLK_STS_IOERR);
}
/*
@@ -2633,7 +2633,7 @@
return;
cleanup:
- rbio_orig_end_io(rbio, -EIO);
+ rbio_orig_end_io(rbio, BLK_STS_IOERR);
return;
finish:
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index e8b9a26..bd679bc 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -6212,8 +6212,8 @@
}
}
-int btrfs_map_bio(struct btrfs_fs_info *fs_info, struct bio *bio,
- int mirror_num, int async_submit)
+blk_status_t btrfs_map_bio(struct btrfs_fs_info *fs_info, struct bio *bio,
+ int mirror_num, int async_submit)
{
struct btrfs_device *dev;
struct bio *first_bio = bio;
@@ -6233,7 +6233,7 @@
&map_length, &bbio, mirror_num, 1);
if (ret) {
btrfs_bio_counter_dec(fs_info);
- return ret;
+ return errno_to_blk_status(ret);
}
total_devs = bbio->num_stripes;
@@ -6256,7 +6256,7 @@
}
btrfs_bio_counter_dec(fs_info);
- return ret;
+ return errno_to_blk_status(ret);
}
if (map_length < length) {
@@ -6283,7 +6283,7 @@
dev_nr, async_submit);
}
btrfs_bio_counter_dec(fs_info);
- return 0;
+ return BLK_STS_OK;
}
struct btrfs_device *btrfs_find_device(struct btrfs_fs_info *fs_info, u64 devid,
diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h
index 6f45fd6..93277fc 100644
--- a/fs/btrfs/volumes.h
+++ b/fs/btrfs/volumes.h
@@ -74,7 +74,7 @@
int missing;
int can_discard;
int is_tgtdev_for_dev_replace;
- int last_flush_error;
+ blk_status_t last_flush_error;
int flush_bio_sent;
#ifdef __BTRFS_NEED_DEVICE_DATA_ORDERED
@@ -416,8 +416,8 @@
struct btrfs_fs_info *fs_info, u64 type);
void btrfs_mapping_init(struct btrfs_mapping_tree *tree);
void btrfs_mapping_tree_free(struct btrfs_mapping_tree *tree);
-int btrfs_map_bio(struct btrfs_fs_info *fs_info, struct bio *bio,
- int mirror_num, int async_submit);
+blk_status_t btrfs_map_bio(struct btrfs_fs_info *fs_info, struct bio *bio,
+ int mirror_num, int async_submit);
int btrfs_open_devices(struct btrfs_fs_devices *fs_devices,
fmode_t flags, void *holder);
int btrfs_scan_one_device(const char *path, fmode_t flags, void *holder,
diff --git a/fs/devpts/inode.c b/fs/devpts/inode.c
index 44dfbca..7eae33f 100644
--- a/fs/devpts/inode.c
+++ b/fs/devpts/inode.c
@@ -133,7 +133,51 @@
return sb->s_fs_info;
}
-struct pts_fs_info *devpts_acquire(struct file *filp, struct vfsmount **ptsmnt)
+static int devpts_ptmx_path(struct path *path)
+{
+ struct super_block *sb;
+ int err;
+
+ /* Has the devpts filesystem already been found? */
+ if (path->mnt->mnt_sb->s_magic == DEVPTS_SUPER_MAGIC)
+ return 0;
+
+ /* Is a devpts filesystem at "pts" in the same directory? */
+ err = path_pts(path);
+ if (err)
+ return err;
+
+ /* Is the path the root of a devpts filesystem? */
+ sb = path->mnt->mnt_sb;
+ if ((sb->s_magic != DEVPTS_SUPER_MAGIC) ||
+ (path->mnt->mnt_root != sb->s_root))
+ return -ENODEV;
+
+ return 0;
+}
+
+struct vfsmount *devpts_mntget(struct file *filp, struct pts_fs_info *fsi)
+{
+ struct path path;
+ int err;
+
+ path = filp->f_path;
+ path_get(&path);
+
+ err = devpts_ptmx_path(&path);
+ dput(path.dentry);
+ if (err) {
+ mntput(path.mnt);
+ path.mnt = ERR_PTR(err);
+ }
+ if (DEVPTS_SB(path.mnt->mnt_sb) != fsi) {
+ mntput(path.mnt);
+ path.mnt = ERR_PTR(-ENODEV);
+ }
+ return path.mnt;
+}
+
+struct pts_fs_info *devpts_acquire(struct file *filp)
{
struct pts_fs_info *result;
struct path path;
@@ -142,31 +186,18 @@
path = filp->f_path;
path_get(&path);
- *ptsmnt = NULL;
- /* Has the devpts filesystem already been found? */
- sb = path.mnt->mnt_sb;
- if (sb->s_magic != DEVPTS_SUPER_MAGIC) {
- /* Is a devpts filesystem at "pts" in the same directory? */
- err = path_pts(&path);
- if (err) {
- result = ERR_PTR(err);
- goto out;
- }
-
- /* Is the path the root of a devpts filesystem? */
- result = ERR_PTR(-ENODEV);
- sb = path.mnt->mnt_sb;
- if ((sb->s_magic != DEVPTS_SUPER_MAGIC) ||
- (path.mnt->mnt_root != sb->s_root))
- goto out;
+ err = devpts_ptmx_path(&path);
+ if (err) {
+ result = ERR_PTR(err);
+ goto out;
}
/*
* pty code needs to hold extra references in case of last /dev/tty close
*/
+ sb = path.mnt->mnt_sb;
atomic_inc(&sb->s_active);
- *ptsmnt = mntget(path.mnt);
result = DEVPTS_SB(sb);
out:
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index 5a10526..7010856 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -2300,7 +2300,7 @@
EXT4_MAX_BLOCK_LOG_SIZE);
struct sg {
struct ext4_group_info info;
- ext4_grpblk_t counters[blocksize_bits + 2];
+ ext4_grpblk_t counters[EXT4_MAX_BLOCK_LOG_SIZE + 2];
} sg;
group--;
@@ -2309,6 +2309,9 @@
" 2^0 2^1 2^2 2^3 2^4 2^5 2^6 "
" 2^7 2^8 2^9 2^10 2^11 2^12 2^13 ]\n");
+ i = (blocksize_bits + 2) * sizeof(sg.info.bb_counters[0]) +
+ sizeof(struct ext4_group_info);
+
grinfo = ext4_get_group_info(sb, group);
/* Load the group info in memory only if not already loaded. */
if (unlikely(EXT4_MB_GRP_NEED_INIT(grinfo))) {
@@ -2320,7 +2323,7 @@
buddy_loaded = 1;
}
- memcpy(&sg, ext4_get_group_info(sb, group), sizeof(sg));
+ memcpy(&sg, ext4_get_group_info(sb, group), i);
if (buddy_loaded)
ext4_mb_unload_buddy(&e4b);
diff --git a/fs/ext4/xattr.c b/fs/ext4/xattr.c
index 82a5af9..3dd9701 100644
--- a/fs/ext4/xattr.c
+++ b/fs/ext4/xattr.c
@@ -1543,7 +1543,7 @@
/* Clear padding bytes. */
memset(val + i->value_len, 0, new_size - i->value_len);
}
- return 0;
+ goto update_hash;
}
/* Compute min_offs and last. */
@@ -1707,6 +1707,7 @@
here->e_value_size = cpu_to_le32(i->value_len);
}
+update_hash:
if (i->value) {
__le32 hash = 0;
@@ -1725,7 +1726,8 @@
here->e_name_len,
&crc32c_hash, 1);
} else if (is_block) {
- __le32 *value = s->base + min_offs - new_size;
+ __le32 *value = s->base + le16_to_cpu(
+ here->e_value_offs);
hash = ext4_xattr_hash_entry(here->e_name,
here->e_name_len, value,
diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
index da0be9a..9623d78 100644
--- a/include/asm-generic/vmlinux.lds.h
+++ b/include/asm-generic/vmlinux.lds.h
@@ -60,6 +60,22 @@
#define ALIGN_FUNCTION() . = ALIGN(8)
/*
+ * LD_DEAD_CODE_DATA_ELIMINATION option enables -fdata-sections, which
+ * generates .data.identifier sections, which need to be pulled in with
+ * .data. We don't want to pull in .data..other sections, which Linux
+ * has defined. Same for text and bss.
+ */
+#ifdef CONFIG_LD_DEAD_CODE_DATA_ELIMINATION
+#define TEXT_MAIN .text .text.[0-9a-zA-Z_]*
+#define DATA_MAIN .data .data.[0-9a-zA-Z_]*
+#define BSS_MAIN .bss .bss.[0-9a-zA-Z_]*
+#else
+#define TEXT_MAIN .text
+#define DATA_MAIN .data
+#define BSS_MAIN .bss
+#endif
+
+/*
* Align to a 32 byte boundary equal to the
* alignment gcc 4.5 uses for a struct
*/
@@ -198,12 +214,9 @@
/*
* .data section
- * LD_DEAD_CODE_DATA_ELIMINATION option enables -fdata-sections generates
- * .data.identifier which needs to be pulled in with .data, but don't want to
- * pull in .data..stuff which has its own requirements. Same for bss.
*/
#define DATA_DATA \
- *(.data .data.[0-9a-zA-Z_]*) \
+ *(DATA_MAIN) \
*(.ref.data) \
*(.data..shared_aligned) /* percpu related */ \
MEM_KEEP(init.data) \
@@ -434,16 +447,17 @@
VMLINUX_SYMBOL(__security_initcall_end) = .; \
}
-/* .text section. Map to function alignment to avoid address changes
+/*
+ * .text section. Map to function alignment to avoid address changes
* during second ld run in second ld pass when generating System.map
- * LD_DEAD_CODE_DATA_ELIMINATION option enables -ffunction-sections generates
- * .text.identifier which needs to be pulled in with .text , but some
- * architectures define .text.foo which is not intended to be pulled in here.
- * Those enabling LD_DEAD_CODE_DATA_ELIMINATION must ensure they don't have
- * conflicting section names, and must pull in .text.[0-9a-zA-Z_]* */
+ *
+ * TEXT_MAIN here will match .text.fixup and .text.unlikely if dead
+ * code elimination is enabled, so these sections should be converted
+ * to use ".." first.
+ */
#define TEXT_TEXT \
ALIGN_FUNCTION(); \
- *(.text.hot .text .text.fixup .text.unlikely) \
+ *(.text.hot TEXT_MAIN .text.fixup .text.unlikely) \
*(.ref.text) \
MEM_KEEP(init.text) \
MEM_KEEP(exit.text) \
@@ -613,7 +627,7 @@
BSS_FIRST_SECTIONS \
*(.bss..page_aligned) \
*(.dynbss) \
- *(.bss .bss.[0-9a-zA-Z_]*) \
+ *(BSS_MAIN) \
*(COMMON) \
}
diff --git a/include/linux/devpts_fs.h b/include/linux/devpts_fs.h
index 7883e90..100cb43 100644
--- a/include/linux/devpts_fs.h
+++ b/include/linux/devpts_fs.h
@@ -19,7 +19,8 @@
struct pts_fs_info;
-struct pts_fs_info *devpts_acquire(struct file *, struct vfsmount **ptsmnt);
+struct vfsmount *devpts_mntget(struct file *, struct pts_fs_info *);
+struct pts_fs_info *devpts_acquire(struct file *);
void devpts_release(struct pts_fs_info *);
int devpts_new_index(struct pts_fs_info *);
@@ -32,6 +33,15 @@
/* unlink */
void devpts_pty_kill(struct dentry *);
+/* in pty.c */
+int ptm_open_peer(struct file *master, struct tty_struct *tty, int flags);
+
+#else
+static inline int
+ptm_open_peer(struct file *master, struct tty_struct *tty, int flags)
+{
+ return -EIO;
+}
#endif
diff --git a/include/linux/pid.h b/include/linux/pid.h
index 4d17931..7195827 100644
--- a/include/linux/pid.h
+++ b/include/linux/pid.h
@@ -8,7 +8,9 @@
PIDTYPE_PID,
PIDTYPE_PGID,
PIDTYPE_SID,
- PIDTYPE_MAX
+ PIDTYPE_MAX,
+ /* only valid to __task_pid_nr_ns() */
+ __PIDTYPE_TGID
};
/*
diff --git a/include/linux/ptr_ring.h b/include/linux/ptr_ring.h
index d8c97ec..37b4bb2 100644
--- a/include/linux/ptr_ring.h
+++ b/include/linux/ptr_ring.h
@@ -436,9 +436,9 @@
__PTR_RING_PEEK_CALL_v; \
})
-static inline void **__ptr_ring_init_queue_alloc(int size, gfp_t gfp)
+static inline void **__ptr_ring_init_queue_alloc(unsigned int size, gfp_t gfp)
{
- return kzalloc(ALIGN(size * sizeof(void *), SMP_CACHE_BYTES), gfp);
+ return kcalloc(size, sizeof(void *), gfp);
}
static inline void __ptr_ring_set_size(struct ptr_ring *r, int size)
@@ -582,7 +582,8 @@
* In particular if you consume ring in interrupt or BH context, you must
* disable interrupts/BH when doing so.
*/
-static inline int ptr_ring_resize_multiple(struct ptr_ring **rings, int nrings,
+static inline int ptr_ring_resize_multiple(struct ptr_ring **rings,
+ unsigned int nrings,
int size,
gfp_t gfp, void (*destroy)(void *))
{
@@ -590,7 +591,7 @@
void ***queues;
int i;
- queues = kmalloc(nrings * sizeof *queues, gfp);
+ queues = kmalloc_array(nrings, sizeof(*queues), gfp);
if (!queues)
goto noqueues;
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 8337e2d..c05ac5f 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1163,13 +1163,6 @@
return tsk->tgid;
}
-extern pid_t task_tgid_nr_ns(struct task_struct *tsk, struct pid_namespace *ns);
-
-static inline pid_t task_tgid_vnr(struct task_struct *tsk)
-{
- return pid_vnr(task_tgid(tsk));
-}
-
/**
* pid_alive - check that a task structure is not stale
* @p: Task structure to be checked.
@@ -1185,23 +1178,6 @@
return p->pids[PIDTYPE_PID].pid != NULL;
}
-static inline pid_t task_ppid_nr_ns(const struct task_struct *tsk, struct pid_namespace *ns)
-{
- pid_t pid = 0;
-
- rcu_read_lock();
- if (pid_alive(tsk))
- pid = task_tgid_nr_ns(rcu_dereference(tsk->real_parent), ns);
- rcu_read_unlock();
-
- return pid;
-}
-
-static inline pid_t task_ppid_nr(const struct task_struct *tsk)
-{
- return task_ppid_nr_ns(tsk, &init_pid_ns);
-}
-
static inline pid_t task_pgrp_nr_ns(struct task_struct *tsk, struct pid_namespace *ns)
{
return __task_pid_nr_ns(tsk, PIDTYPE_PGID, ns);
@@ -1223,6 +1199,33 @@
return __task_pid_nr_ns(tsk, PIDTYPE_SID, NULL);
}
+static inline pid_t task_tgid_nr_ns(struct task_struct *tsk, struct pid_namespace *ns)
+{
+ return __task_pid_nr_ns(tsk, __PIDTYPE_TGID, ns);
+}
+
+static inline pid_t task_tgid_vnr(struct task_struct *tsk)
+{
+ return __task_pid_nr_ns(tsk, __PIDTYPE_TGID, NULL);
+}
+
+static inline pid_t task_ppid_nr_ns(const struct task_struct *tsk, struct pid_namespace *ns)
+{
+ pid_t pid = 0;
+
+ rcu_read_lock();
+ if (pid_alive(tsk))
+ pid = task_tgid_nr_ns(rcu_dereference(tsk->real_parent), ns);
+ rcu_read_unlock();
+
+ return pid;
+}
+
+static inline pid_t task_ppid_nr(const struct task_struct *tsk)
+{
+ return task_ppid_nr_ns(tsk, &init_pid_ns);
+}
+
/* Obsolete, do not use: */
static inline pid_t task_pgrp_nr(struct task_struct *tsk)
{
diff --git a/include/linux/skb_array.h b/include/linux/skb_array.h
index 35226cd..8621ffd 100644
--- a/include/linux/skb_array.h
+++ b/include/linux/skb_array.h
@@ -193,7 +193,8 @@
}
static inline int skb_array_resize_multiple(struct skb_array **rings,
- int nrings, int size, gfp_t gfp)
+ int nrings, unsigned int size,
+ gfp_t gfp)
{
BUILD_BUG_ON(offsetof(struct skb_array, ring));
return ptr_ring_resize_multiple((struct ptr_ring **)rings,
diff --git a/include/net/ip.h b/include/net/ip.h
index 821cedc..0cf7f5a 100644
--- a/include/net/ip.h
+++ b/include/net/ip.h
@@ -352,7 +352,7 @@
!forwarding)
return dst_mtu(dst);
- return min(dst->dev->mtu, IP_MAX_MTU);
+ return min(READ_ONCE(dst->dev->mtu), IP_MAX_MTU);
}
static inline unsigned int ip_skb_dst_mtu(struct sock *sk,
@@ -364,7 +364,7 @@
return ip_dst_mtu_maybe_forward(skb_dst(skb), forwarding);
}
- return min(skb_dst(skb)->dev->mtu, IP_MAX_MTU);
+ return min(READ_ONCE(skb_dst(skb)->dev->mtu), IP_MAX_MTU);
}
u32 ip_idents_reserve(u32 hash, int segs);
diff --git a/include/net/sch_generic.h b/include/net/sch_generic.h
index 1c123e2..67f815e 100644
--- a/include/net/sch_generic.h
+++ b/include/net/sch_generic.h
@@ -806,8 +806,11 @@
old = *pold;
*pold = new;
if (old != NULL) {
- qdisc_tree_reduce_backlog(old, old->q.qlen, old->qstats.backlog);
+ unsigned int qlen = old->q.qlen;
+ unsigned int backlog = old->qstats.backlog;
+
qdisc_reset(old);
+ qdisc_tree_reduce_backlog(old, qlen, backlog);
}
sch_tree_unlock(sch);
diff --git a/include/net/sock.h b/include/net/sock.h
index 7c0632c..aeeec62 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -507,9 +507,7 @@
static inline int sk_peek_offset(struct sock *sk, int flags)
{
if (unlikely(flags & MSG_PEEK)) {
- s32 off = READ_ONCE(sk->sk_peek_off);
- if (off >= 0)
- return off;
+ return READ_ONCE(sk->sk_peek_off);
}
return 0;
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index b573243..88c32ab 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -1683,6 +1683,7 @@
enum ib_qp_type qp_type;
struct ib_rwq_ind_table *rwq_ind_tbl;
struct ib_qp_security *qp_sec;
+ u8 port;
};
struct ib_mr {
diff --git a/include/scsi/scsi_cmnd.h b/include/scsi/scsi_cmnd.h
index a1266d3..6af198d 100644
--- a/include/scsi/scsi_cmnd.h
+++ b/include/scsi/scsi_cmnd.h
@@ -57,6 +57,7 @@
/* for scmd->flags */
#define SCMD_TAGGED (1 << 0)
#define SCMD_UNCHECKED_ISA_DMA (1 << 1)
+#define SCMD_ZONE_WRITE_LOCK (1 << 2)
struct scsi_cmnd {
struct scsi_request req;
diff --git a/kernel/pid.c b/kernel/pid.c
index c69c30d..020dedb 100644
--- a/kernel/pid.c
+++ b/kernel/pid.c
@@ -527,8 +527,11 @@
if (!ns)
ns = task_active_pid_ns(current);
if (likely(pid_alive(task))) {
- if (type != PIDTYPE_PID)
+ if (type != PIDTYPE_PID) {
+ if (type == __PIDTYPE_TGID)
+ type = PIDTYPE_PID;
task = task->group_leader;
+ }
nr = pid_nr_ns(rcu_dereference(task->pids[type].pid), ns);
}
rcu_read_unlock();
@@ -537,12 +540,6 @@
}
EXPORT_SYMBOL(__task_pid_nr_ns);
-pid_t task_tgid_nr_ns(struct task_struct *tsk, struct pid_namespace *ns)
-{
- return pid_nr_ns(task_tgid(tsk), ns);
-}
-EXPORT_SYMBOL(task_tgid_nr_ns);
-
struct pid_namespace *task_active_pid_ns(struct task_struct *tsk)
{
return ns_of_pid(task_pid(tsk));
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 02004ae9..96cea88 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -889,6 +889,10 @@
function_profile_call(trace->func, 0, NULL, NULL);
+ /* If function graph is shutting down, ret_stack can be NULL */
+ if (!current->ret_stack)
+ return 0;
+
if (index >= 0 && index < FTRACE_RETFUNC_DEPTH)
current->ret_stack[index].subtime = 0;
diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c
index 529cc50..81279c6 100644
--- a/kernel/trace/ring_buffer.c
+++ b/kernel/trace/ring_buffer.c
@@ -4386,15 +4386,19 @@
* the page that was allocated, with the read page of the buffer.
*
* Returns:
- * The page allocated, or NULL on error.
+ * The page allocated, or ERR_PTR
*/
void *ring_buffer_alloc_read_page(struct ring_buffer *buffer, int cpu)
{
- struct ring_buffer_per_cpu *cpu_buffer = buffer->buffers[cpu];
+ struct ring_buffer_per_cpu *cpu_buffer;
struct buffer_data_page *bpage = NULL;
unsigned long flags;
struct page *page;
+ if (!cpumask_test_cpu(cpu, buffer->cpumask))
+ return ERR_PTR(-ENODEV);
+
+ cpu_buffer = buffer->buffers[cpu];
local_irq_save(flags);
arch_spin_lock(&cpu_buffer->lock);
@@ -4412,7 +4416,7 @@
page = alloc_pages_node(cpu_to_node(cpu),
GFP_KERNEL | __GFP_NORETRY, 0);
if (!page)
- return NULL;
+ return ERR_PTR(-ENOMEM);
bpage = page_address(page);
@@ -4467,8 +4471,8 @@
*
* for example:
* rpage = ring_buffer_alloc_read_page(buffer, cpu);
- * if (!rpage)
- * return error;
+ * if (IS_ERR(rpage))
+ * return PTR_ERR(rpage);
* ret = ring_buffer_read_page(buffer, &rpage, len, cpu, 0);
* if (ret >= 0)
* process_page(rpage, ret);
diff --git a/kernel/trace/ring_buffer_benchmark.c b/kernel/trace/ring_buffer_benchmark.c
index 9fbcaf5..68ee79a 100644
--- a/kernel/trace/ring_buffer_benchmark.c
+++ b/kernel/trace/ring_buffer_benchmark.c
@@ -113,7 +113,7 @@
int i;
bpage = ring_buffer_alloc_read_page(buffer, cpu);
- if (!bpage)
+ if (IS_ERR(bpage))
return EVENT_DROPPED;
ret = ring_buffer_read_page(buffer, &bpage, PAGE_SIZE, cpu, 1);
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 42b9355..44004d8 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -6598,7 +6598,7 @@
{
struct ftrace_buffer_info *info = filp->private_data;
struct trace_iterator *iter = &info->iter;
- ssize_t ret;
+ ssize_t ret = 0;
ssize_t size;
if (!count)
@@ -6612,10 +6612,15 @@
if (!info->spare) {
info->spare = ring_buffer_alloc_read_page(iter->trace_buffer->buffer,
iter->cpu_file);
- info->spare_cpu = iter->cpu_file;
+ if (IS_ERR(info->spare)) {
+ ret = PTR_ERR(info->spare);
+ info->spare = NULL;
+ } else {
+ info->spare_cpu = iter->cpu_file;
+ }
}
if (!info->spare)
- return -ENOMEM;
+ return ret;
/* Do we have previous read data to read? */
if (info->read < PAGE_SIZE)
@@ -6790,8 +6795,9 @@
ref->ref = 1;
ref->buffer = iter->trace_buffer->buffer;
ref->page = ring_buffer_alloc_read_page(ref->buffer, iter->cpu_file);
- if (!ref->page) {
- ret = -ENOMEM;
+ if (IS_ERR(ref->page)) {
+ ret = PTR_ERR(ref->page);
+ ref->page = NULL;
kfree(ref);
break;
}
@@ -8293,6 +8299,7 @@
if (ret < 0)
goto out_free_cpumask;
/* Used for event triggers */
+ ret = -ENOMEM;
temp_buffer = ring_buffer_alloc(PAGE_SIZE, RB_FL_OVERWRITE);
if (!temp_buffer)
goto out_rm_hp_state;
@@ -8407,4 +8414,4 @@
}
fs_initcall(tracer_init_tracefs);
-late_initcall(clear_boot_tracer);
+late_initcall_sync(clear_boot_tracer);
diff --git a/kernel/trace/trace_events_filter.c b/kernel/trace/trace_events_filter.c
index 59a411f..181e139 100644
--- a/kernel/trace/trace_events_filter.c
+++ b/kernel/trace/trace_events_filter.c
@@ -1959,6 +1959,10 @@
if (err && set_str)
append_filter_err(ps, filter);
}
+ if (err && !set_str) {
+ free_event_filter(filter);
+ filter = NULL;
+ }
create_filter_finish(ps);
*filterp = filter;
diff --git a/kernel/trace/tracing_map.c b/kernel/trace/tracing_map.c
index 0a689bb..305039b 100644
--- a/kernel/trace/tracing_map.c
+++ b/kernel/trace/tracing_map.c
@@ -221,16 +221,19 @@
if (!a)
return;
- if (!a->pages) {
- kfree(a);
- return;
- }
+ if (!a->pages)
+ goto free;
for (i = 0; i < a->n_pages; i++) {
if (!a->pages[i])
break;
free_page((unsigned long)a->pages[i]);
}
+
+ kfree(a->pages);
+
+ free:
+ kfree(a);
}
struct tracing_map_array *tracing_map_array_alloc(unsigned int n_elts,
diff --git a/net/core/datagram.c b/net/core/datagram.c
index ee5647b..a21ca8d 100644
--- a/net/core/datagram.c
+++ b/net/core/datagram.c
@@ -169,14 +169,20 @@
int *peeked, int *off, int *err,
struct sk_buff **last)
{
+ bool peek_at_off = false;
struct sk_buff *skb;
- int _off = *off;
+ int _off = 0;
+
+ if (unlikely(flags & MSG_PEEK && *off >= 0)) {
+ peek_at_off = true;
+ _off = *off;
+ }
*last = queue->prev;
skb_queue_walk(queue, skb) {
if (flags & MSG_PEEK) {
- if (_off >= skb->len && (skb->len || _off ||
- skb->peeked)) {
+ if (peek_at_off && _off >= skb->len &&
+ (_off || skb->peeked)) {
_off -= skb->len;
continue;
}
diff --git a/net/dccp/proto.c b/net/dccp/proto.c
index 86bc40b..b68168f 100644
--- a/net/dccp/proto.c
+++ b/net/dccp/proto.c
@@ -24,6 +24,7 @@
#include <net/checksum.h>
#include <net/inet_sock.h>
+#include <net/inet_common.h>
#include <net/sock.h>
#include <net/xfrm.h>
@@ -170,6 +171,15 @@
EXPORT_SYMBOL_GPL(dccp_packet_name);
+static void dccp_sk_destruct(struct sock *sk)
+{
+ struct dccp_sock *dp = dccp_sk(sk);
+
+ ccid_hc_tx_delete(dp->dccps_hc_tx_ccid, sk);
+ dp->dccps_hc_tx_ccid = NULL;
+ inet_sock_destruct(sk);
+}
+
int dccp_init_sock(struct sock *sk, const __u8 ctl_sock_initialized)
{
struct dccp_sock *dp = dccp_sk(sk);
@@ -179,6 +189,7 @@
icsk->icsk_syn_retries = sysctl_dccp_request_retries;
sk->sk_state = DCCP_CLOSED;
sk->sk_write_space = dccp_write_space;
+ sk->sk_destruct = dccp_sk_destruct;
icsk->icsk_sync_mss = dccp_sync_mss;
dp->dccps_mss_cache = 536;
dp->dccps_rate_last = jiffies;
@@ -219,8 +230,7 @@
dp->dccps_hc_rx_ackvec = NULL;
}
ccid_hc_rx_delete(dp->dccps_hc_rx_ccid, sk);
- ccid_hc_tx_delete(dp->dccps_hc_tx_ccid, sk);
- dp->dccps_hc_rx_ccid = dp->dccps_hc_tx_ccid = NULL;
+ dp->dccps_hc_rx_ccid = NULL;
/* clean up feature negotiation state */
dccp_feat_list_purge(&dp->dccps_featneg);
diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c
index 498706b..caf2f11 100644
--- a/net/ipv4/igmp.c
+++ b/net/ipv4/igmp.c
@@ -1007,10 +1007,18 @@
{
/* This basically follows the spec line by line -- see RFC1112 */
struct igmphdr *ih;
- struct in_device *in_dev = __in_dev_get_rcu(skb->dev);
+ struct net_device *dev = skb->dev;
+ struct in_device *in_dev;
int len = skb->len;
bool dropped = true;
+ if (netif_is_l3_master(dev)) {
+ dev = dev_get_by_index_rcu(dev_net(dev), IPCB(skb)->iif);
+ if (!dev)
+ goto drop;
+ }
+
+ in_dev = __in_dev_get_rcu(dev);
if (!in_dev)
goto drop;
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 7effa62..2331de2 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -1267,7 +1267,7 @@
if (mtu)
return mtu;
- mtu = dst->dev->mtu;
+ mtu = READ_ONCE(dst->dev->mtu);
if (unlikely(dst_metric_locked(dst, RTAX_MTU))) {
if (rt->rt_uses_gateway && mtu > 576)
@@ -2763,14 +2763,21 @@
if (rtm->rtm_flags & RTM_F_LOOKUP_TABLE)
table_id = rt->rt_table_id;
- if (rtm->rtm_flags & RTM_F_FIB_MATCH)
+ if (rtm->rtm_flags & RTM_F_FIB_MATCH) {
+ if (!res.fi) {
+ err = fib_props[res.type].error;
+ if (!err)
+ err = -EHOSTUNREACH;
+ goto errout_free;
+ }
err = fib_dump_info(skb, NETLINK_CB(in_skb).portid,
nlh->nlmsg_seq, RTM_NEWROUTE, table_id,
rt->rt_type, res.prefix, res.prefixlen,
fl4.flowi4_tos, res.fi, 0);
- else
+ } else {
err = rt_fill_info(net, dst, src, table_id, &fl4, skb,
NETLINK_CB(in_skb).portid, nlh->nlmsg_seq);
+ }
if (err < 0)
goto errout_free;
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 53de142..bab7f04 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -3009,8 +3009,7 @@
/* delta_us may not be positive if the socket is locked
* when the retrans timer fires and is rescheduled.
*/
- if (delta_us > 0)
- rto = usecs_to_jiffies(delta_us);
+ rto = usecs_to_jiffies(max_t(int, delta_us, 1));
}
inet_csk_reset_xmit_timer(sk, ICSK_TIME_RETRANS, rto,
TCP_RTO_MAX);
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index a7c804f..cd1d044 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -1574,7 +1574,8 @@
return ip_recv_error(sk, msg, len, addr_len);
try_again:
- peeking = off = sk_peek_offset(sk, flags);
+ peeking = flags & MSG_PEEK;
+ off = sk_peek_offset(sk, flags);
skb = __skb_recv_udp(sk, flags, noblock, &peeked, &off, &err);
if (!skb)
return err;
diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c
index ebb299c..5cc0ea0 100644
--- a/net/ipv6/ip6_fib.c
+++ b/net/ipv6/ip6_fib.c
@@ -914,6 +914,8 @@
}
nsiblings = iter->rt6i_nsiblings;
fib6_purge_rt(iter, fn, info->nl_net);
+ if (fn->rr_ptr == iter)
+ fn->rr_ptr = NULL;
rt6_release(iter);
if (nsiblings) {
@@ -926,6 +928,8 @@
if (rt6_qualify_for_ecmp(iter)) {
*ins = iter->dst.rt6_next;
fib6_purge_rt(iter, fn, info->nl_net);
+ if (fn->rr_ptr == iter)
+ fn->rr_ptr = NULL;
rt6_release(iter);
nsiblings--;
} else {
@@ -1014,7 +1018,7 @@
/* Create subtree root node */
sfn = node_alloc();
if (!sfn)
- goto st_failure;
+ goto failure;
sfn->leaf = info->nl_net->ipv6.ip6_null_entry;
atomic_inc(&info->nl_net->ipv6.ip6_null_entry->rt6i_ref);
@@ -1031,12 +1035,12 @@
if (IS_ERR(sn)) {
/* If it is failed, discard just allocated
- root, and then (in st_failure) stale node
+ root, and then (in failure) stale node
in main tree.
*/
node_free(sfn);
err = PTR_ERR(sn);
- goto st_failure;
+ goto failure;
}
/* Now link new subtree to main tree */
@@ -1051,7 +1055,7 @@
if (IS_ERR(sn)) {
err = PTR_ERR(sn);
- goto st_failure;
+ goto failure;
}
}
@@ -1092,18 +1096,17 @@
atomic_inc(&pn->leaf->rt6i_ref);
}
#endif
- /* Always release dst as dst->__refcnt is guaranteed
- * to be taken before entering this function
- */
- dst_release_immediate(&rt->dst);
+ goto failure;
}
return err;
-#ifdef CONFIG_IPV6_SUBTREES
- /* Subtree creation failed, probably main tree node
- is orphan. If it is, shoot it.
+failure:
+ /* fn->leaf could be NULL if fn is an intermediate node and we
+ * failed to add the new route to it in both subtree creation
+ * failure and fib6_add_rt2node() failure case.
+ * In both cases, fib6_repair_tree() should be called to fix
+ * fn->leaf.
*/
-st_failure:
if (fn && !(fn->fn_flags & (RTN_RTINFO|RTN_ROOT)))
fib6_repair_tree(info->nl_net, fn);
/* Always release dst as dst->__refcnt is guaranteed
@@ -1111,7 +1114,6 @@
*/
dst_release_immediate(&rt->dst);
return err;
-#endif
}
/*
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index 578142b..20039c8 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -362,7 +362,8 @@
return ipv6_recv_rxpmtu(sk, msg, len, addr_len);
try_again:
- peeking = off = sk_peek_offset(sk, flags);
+ peeking = flags & MSG_PEEK;
+ off = sk_peek_offset(sk, flags);
skb = __skb_recv_udp(sk, flags, noblock, &peeked, &off, &err);
if (!skb)
return err;
diff --git a/net/irda/af_irda.c b/net/irda/af_irda.c
index 2e6990f..23fa7c8 100644
--- a/net/irda/af_irda.c
+++ b/net/irda/af_irda.c
@@ -2213,7 +2213,7 @@
{
struct sock *sk = sock->sk;
struct irda_sock *self = irda_sk(sk);
- struct irda_device_list list;
+ struct irda_device_list list = { 0 };
struct irda_device_info *discoveries;
struct irda_ias_set * ias_opt; /* IAS get/query params */
struct ias_object * ias_obj; /* Object in IAS */
diff --git a/net/openvswitch/actions.c b/net/openvswitch/actions.c
index e461067..a54a556 100644
--- a/net/openvswitch/actions.c
+++ b/net/openvswitch/actions.c
@@ -1337,6 +1337,7 @@
goto out;
}
+ OVS_CB(skb)->acts_origlen = acts->orig_len;
err = do_execute_actions(dp, skb, key,
acts->actions, acts->actions_len);
diff --git a/net/openvswitch/datapath.c b/net/openvswitch/datapath.c
index 45fe8c8..6b44fe4 100644
--- a/net/openvswitch/datapath.c
+++ b/net/openvswitch/datapath.c
@@ -381,7 +381,7 @@
}
static size_t upcall_msg_size(const struct dp_upcall_info *upcall_info,
- unsigned int hdrlen)
+ unsigned int hdrlen, int actions_attrlen)
{
size_t size = NLMSG_ALIGN(sizeof(struct ovs_header))
+ nla_total_size(hdrlen) /* OVS_PACKET_ATTR_PACKET */
@@ -398,7 +398,7 @@
/* OVS_PACKET_ATTR_ACTIONS */
if (upcall_info->actions_len)
- size += nla_total_size(upcall_info->actions_len);
+ size += nla_total_size(actions_attrlen);
/* OVS_PACKET_ATTR_MRU */
if (upcall_info->mru)
@@ -465,7 +465,8 @@
else
hlen = skb->len;
- len = upcall_msg_size(upcall_info, hlen - cutlen);
+ len = upcall_msg_size(upcall_info, hlen - cutlen,
+ OVS_CB(skb)->acts_origlen);
user_skb = genlmsg_new(len, GFP_ATOMIC);
if (!user_skb) {
err = -ENOMEM;
diff --git a/net/openvswitch/datapath.h b/net/openvswitch/datapath.h
index 5d8dcd8..4806006 100644
--- a/net/openvswitch/datapath.h
+++ b/net/openvswitch/datapath.h
@@ -99,11 +99,13 @@
* when a packet is received by OVS.
* @mru: The maximum received fragement size; 0 if the packet is not
* fragmented.
+ * @acts_origlen: The netlink size of the flow actions applied to this skb.
* @cutlen: The number of bytes from the packet end to be removed.
*/
struct ovs_skb_cb {
struct vport *input_vport;
u16 mru;
+ u16 acts_origlen;
u32 cutlen;
};
#define OVS_CB(skb) ((struct ovs_skb_cb *)(skb)->cb)
diff --git a/net/rxrpc/call_accept.c b/net/rxrpc/call_accept.c
index dd30d74..ec3383f 100644
--- a/net/rxrpc/call_accept.c
+++ b/net/rxrpc/call_accept.c
@@ -223,6 +223,7 @@
tail = b->call_backlog_tail;
while (CIRC_CNT(head, tail, size) > 0) {
struct rxrpc_call *call = b->call_backlog[tail];
+ call->socket = rx;
if (rx->discard_new_call) {
_debug("discard %lx", call->user_call_ID);
rx->discard_new_call(call, call->user_call_ID);
diff --git a/net/sched/act_ipt.c b/net/sched/act_ipt.c
index d516ba8..5417078 100644
--- a/net/sched/act_ipt.c
+++ b/net/sched/act_ipt.c
@@ -41,6 +41,7 @@
{
struct xt_tgchk_param par;
struct xt_target *target;
+ struct ipt_entry e = {};
int ret = 0;
target = xt_request_find_target(AF_INET, t->u.user.name,
@@ -52,6 +53,7 @@
memset(&par, 0, sizeof(par));
par.net = net;
par.table = table;
+ par.entryinfo = &e;
par.target = target;
par.targinfo = t->data;
par.hook_mask = hook;
diff --git a/net/sched/cls_api.c b/net/sched/cls_api.c
index 39da0c5..9fd44c2 100644
--- a/net/sched/cls_api.c
+++ b/net/sched/cls_api.c
@@ -205,7 +205,7 @@
{
struct tcf_proto *tp;
- if (*chain->p_filter_chain)
+ if (chain->p_filter_chain)
RCU_INIT_POINTER(*chain->p_filter_chain, NULL);
while ((tp = rtnl_dereference(chain->filter_chain)) != NULL) {
RCU_INIT_POINTER(chain->filter_chain, tp->next);
diff --git a/net/sctp/ipv6.c b/net/sctp/ipv6.c
index 2a186b20..a4b6ffb 100644
--- a/net/sctp/ipv6.c
+++ b/net/sctp/ipv6.c
@@ -512,7 +512,9 @@
{
addr->sa.sa_family = AF_INET6;
addr->v6.sin6_port = port;
+ addr->v6.sin6_flowinfo = 0;
addr->v6.sin6_addr = *saddr;
+ addr->v6.sin6_scope_id = 0;
}
/* Compare addresses exactly.
diff --git a/net/tipc/netlink_compat.c b/net/tipc/netlink_compat.c
index 9bfe886..750949d 100644
--- a/net/tipc/netlink_compat.c
+++ b/net/tipc/netlink_compat.c
@@ -258,13 +258,15 @@
arg = nlmsg_new(0, GFP_KERNEL);
if (!arg) {
kfree_skb(msg->rep);
+ msg->rep = NULL;
return -ENOMEM;
}
err = __tipc_nl_compat_dumpit(cmd, msg, arg);
- if (err)
+ if (err) {
kfree_skb(msg->rep);
-
+ msg->rep = NULL;
+ }
kfree_skb(arg);
return err;
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index 7b52a38..be8982b 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -2304,10 +2304,7 @@
*/
mutex_lock(&u->iolock);
- if (flags & MSG_PEEK)
- skip = sk_peek_offset(sk, flags);
- else
- skip = 0;
+ skip = max(sk_peek_offset(sk, flags), 0);
do {
int chunk;
diff --git a/scripts/Kbuild.include b/scripts/Kbuild.include
index dd8e2dd..9ffd3dd 100644
--- a/scripts/Kbuild.include
+++ b/scripts/Kbuild.include
@@ -85,8 +85,8 @@
# try-run
# Usage: option = $(call try-run, $(CC)...-o "$$TMP",option-ok,otherwise)
-# Exit code chooses option. "$$TMP" is can be used as temporary file and
-# is automatically cleaned up.
+# Exit code chooses option. "$$TMP" serves as a temporary file and is
+# automatically cleaned up.
try-run = $(shell set -e; \
TMP="$(TMPOUT).$$$$.tmp"; \
TMPO="$(TMPOUT).$$$$.o"; \
@@ -261,7 +261,6 @@
any-prereq = $(filter-out $(PHONY),$?) $(filter-out $(PHONY) $(wildcard $^),$^)
# Execute command if command has changed or prerequisite(s) are updated.
-#
if_changed = $(if $(strip $(any-prereq) $(arg-check)), \
@set -e; \
$(echo-cmd) $(cmd_$(1)); \
@@ -315,7 +314,7 @@
$(rule_$(1)), @:)
###
-# why - tell why a a target got build
+# why - tell why a target got built
# enabled by make V=2
# Output (listed in the order they are checked):
# (1) - due to target is PHONY
diff --git a/scripts/Makefile.asm-generic b/scripts/Makefile.asm-generic
index 95f7d80..a6c8c17 100644
--- a/scripts/Makefile.asm-generic
+++ b/scripts/Makefile.asm-generic
@@ -1,9 +1,9 @@
# include/asm-generic contains a lot of files that are used
# verbatim by several architectures.
#
-# This Makefile reads the file arch/$(SRCARCH)/include/asm/Kbuild
+# This Makefile reads the file arch/$(SRCARCH)/include/$(src)/Kbuild
# and for each file listed in this file with generic-y creates
-# a small wrapper file in $(obj) (arch/$(SRCARCH)/include/generated/asm)
+# a small wrapper file in $(obj) (arch/$(SRCARCH)/include/generated/$(src))
kbuild-file := $(srctree)/arch/$(SRCARCH)/include/$(src)/Kbuild
-include $(kbuild-file)
diff --git a/scripts/Makefile.build b/scripts/Makefile.build
index 4a9a2ce..f6152c7 100644
--- a/scripts/Makefile.build
+++ b/scripts/Makefile.build
@@ -229,8 +229,8 @@
endif
# Due to recursion, we must skip empty.o.
# The empty.o file is created in the make process in order to determine
-# the target endianness and word size. It is made before all other C
-# files, including recordmcount.
+# the target endianness and word size. It is made before all other C
+# files, including recordmcount.
sub_cmd_record_mcount = \
if [ $(@) != "scripts/mod/empty.o" ]; then \
$(objtree)/scripts/recordmcount $(RECORDMCOUNT_FLAGS) "$(@)"; \
@@ -245,13 +245,13 @@
"$(LD)" "$(NM)" "$(RM)" "$(MV)" \
"$(if $(part-of-module),1,0)" "$(@)";
recordmcount_source := $(srctree)/scripts/recordmcount.pl
-endif
+endif # BUILD_C_RECORDMCOUNT
cmd_record_mcount = \
if [ "$(findstring $(CC_FLAGS_FTRACE),$(_c_flags))" = \
"$(CC_FLAGS_FTRACE)" ]; then \
$(sub_cmd_record_mcount) \
fi;
-endif
+endif # CONFIG_FTRACE_MCOUNT_RECORD
ifdef CONFIG_STACK_VALIDATION
ifneq ($(SKIP_STACK_VALIDATION),1)
diff --git a/scripts/Makefile.dtbinst b/scripts/Makefile.dtbinst
index 34614a4..993fb85 100644
--- a/scripts/Makefile.dtbinst
+++ b/scripts/Makefile.dtbinst
@@ -14,7 +14,7 @@
PHONY := __dtbs_install
__dtbs_install:
-export dtbinst-root ?= $(obj)
+export dtbinst_root ?= $(obj)
include include/config/auto.conf
include scripts/Kbuild.include
@@ -27,7 +27,7 @@
quiet_cmd_dtb_install = INSTALL $<
cmd_dtb_install = mkdir -p $(2); cp $< $(2)
-install-dir = $(patsubst $(dtbinst-root)%,$(INSTALL_DTBS_PATH)%,$(obj))
+install-dir = $(patsubst $(dtbinst_root)%,$(INSTALL_DTBS_PATH)%,$(obj))
$(dtbinst-files): %.dtb: $(obj)/%.dtb
$(call cmd,dtb_install,$(install-dir))
diff --git a/scripts/basic/Makefile b/scripts/basic/Makefile
index ec10d93..0372b33 100644
--- a/scripts/basic/Makefile
+++ b/scripts/basic/Makefile
@@ -1,5 +1,5 @@
###
-# Makefile.basic lists the most basic programs used during the build process.
+# This Makefile lists the most basic programs used during the build process.
# The programs listed herein are what are needed to do the basic stuff,
# such as fix file dependencies.
# This initial step is needed to avoid files to be recompiled
diff --git a/scripts/basic/fixdep.c b/scripts/basic/fixdep.c
index fff818b..bbf62cb 100644
--- a/scripts/basic/fixdep.c
+++ b/scripts/basic/fixdep.c
@@ -25,7 +25,7 @@
*
* So we play the same trick that "mkdep" played before. We replace
* the dependency on autoconf.h by a dependency on every config
- * option which is mentioned in any of the listed prequisites.
+ * option which is mentioned in any of the listed prerequisites.
*
* kconfig populates a tree in include/config/ with an empty file
* for each config symbol and when the configuration is updated
@@ -34,7 +34,7 @@
* the config symbols are rebuilt.
*
* So if the user changes his CONFIG_HIS_DRIVER option, only the objects
- * which depend on "include/linux/config/his/driver.h" will be rebuilt,
+ * which depend on "include/config/his/driver.h" will be rebuilt,
* so most likely only his driver ;-)
*
* The idea above dates, by the way, back to Michael E Chastain, AFAIK.
@@ -75,7 +75,7 @@
* and then basically copies the .<target>.d file to stdout, in the
* process filtering out the dependency on autoconf.h and adding
* dependencies on include/config/my/option.h for every
- * CONFIG_MY_OPTION encountered in any of the prequisites.
+ * CONFIG_MY_OPTION encountered in any of the prerequisites.
*
* It will also filter out all the dependencies on *.ver. We need
* to make sure that the generated version checksum are globally up
diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
index 1a2c07e..8c67a90 100644
--- a/tools/lib/bpf/libbpf.c
+++ b/tools/lib/bpf/libbpf.c
@@ -879,7 +879,8 @@
size_t j;
int err = *pfd;
- pr_warning("failed to create map: %s\n",
+ pr_warning("failed to create map (name: '%s'): %s\n",
+ obj->maps[i].name,
strerror(errno));
for (j = 0; j < i; j++)
zclose(obj->maps[j].fd);