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2017-12-21Merge tag 'amlogic-dt64' of ↵Arnd Bergmann
ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic into next/dt Pull "Amlogic 64-bit DT updates for v4.16" from Kevin Hilman - meson-gx: add VPU power domain support - odroid-c2: add HDMI and CEC nodes - misc cleanups * tag 'amlogic-dt64' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic: ARM64: dts: meson-gxm: fix q200 interrupt number ARM64: dts: meson-gxm: add the PHY interrupt line on Khadas VIM2 ARM64: dts: meson: add comments with the GPIO for the PHY interrupts ARM64: dts: amlogic: use generic bus node names ARM64: dts: meson: drop "sana" clock from SAR ADC ARM64: dts: odroid-c2: Add HDMI and CEC Nodes ARM64: dts: meson-gx: grow reset controller memory zone ARM64: dts: meson-gx: Add HDMI_5V regulator on selected boards ARM64: dts: meson-gx: add VPU power domain
2017-12-21Merge tag 'amlogic-dt' of ↵Arnd Bergmann
ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic into next/dt Pull "Amlogic 32-bit DT changes for v4.16" from Kevin Hilman: - meson8: GPIO IRQ support - switch to stable UART bindings w/correct clock - add more L2 cache settings - drop unused ADC clock * tag 'amlogic-dt' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic: ARM: meson: enable MESON_IRQ_GPIO also for MACH_MESON8 ARM: dts: meson8: enable the GPIO interrupt controller ARM: dts: meson8b: use stable UART bindings with correct gate clock ARM: dts: meson8: use stable UART bindings with correct gate clock ARM: dts: meson: drop "sana" clock from SAR ADC ARM: dts: meson8: add more L2 cache settings ARM: dts: meson8b: add more L2 cache settings
2017-12-21Merge tag 'renesas-arm64-dt-for-v4.16' of ↵Arnd Bergmann
ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/dt Pull "Renesas ARM64 Based SoC DT Updates for v4.16" from Simon Horman: * Use r8a77970 (V3M) CPG core clock and SYSC power domain macros These may be used in place of numeric constants now that they are present in Linus's tree. * Add r8a77970 (V3M) Starter Kit board support This includes basic support to bring up the board with a serial console and EtherAVB support * Add IPMMU nodes and connections to on-chip devices on r8a7795 (H3), r8a7796 (M3-W), r8a77970 (V3M) and r8a77995 (D3) SoCs Simon Horman says "With these patches applied a white list enabled IPMMU driver may be used to check silicon revision and then enable IPMMU in the known working cases." * Enable DMA for SCIF2 on r8a77995 (D2) SoC * Increase the number of GPIO bank 1 ports to 29 on r8a7795 (H3) SoC This adds support for the GP-1-28 port pin of the r8a7795 (H3) ES2.0 SoC * Add support for CAN to r8a77995 (D3) SoC Ulrich Hecht says "This is a by-the-datasheet implementation, with the datasheet missing some bits, namely the pin map. I filled in the gaps... by deducing the information from pin numbers already in the PFC driver, so careful scrutiny is advised." * Add support for SDHI to r8a77995 (D3) SoC * Add SoC name to file header of r8a7795 (H3) and r8a7796 (M3-W) Salvator-X and Salvator-XS board files Geert Uytterhoeven says "With the proliferation of Salvator-X and Salvator-XS boards carrying different R-Car Gen3 SoCs variants, several DTS files ended up having the same file headers. Add the SoC names to the file headers to avoid confusion." * Add device note for ROHM BD9571MWV PMIC to r8a7795 (H3) and r8a7796 (M3-W) Salvator-X and Salvator-XS boards. Geert Uytterhoeven says "This was based on the example in the DT binding documentation, but using IRQ0 instead of a GPIO interrupt, as that matches the schematics, and because INTC-EX is a simpler block." * Enable USB2.0 channel 0 on r8a77970 (V3M) ULCB Kingfisher board Vladimir Barinov says "The dedicated USB0_PWEN pin is used to control CN13 VBUS source from U43 power supply. MAX3355 can also provide VBUS, hence it should be disabled via OTG_OFFVBUSn node coming from gpio expander TCA9539. Set MAX3355 enabled using OTG_EXTLPn node to be able to read OTG ID of CN13." * Add support for r8a7795 (M3-W) Salvator-XS board Geert Uytterhoeven says "This patch series adds support for the version of the Salvator-XS development board equipped with an R-Car M3-W SiP. The DT was based on work for the Salvator-X and -XS boards with M3-W resp. H3 SiPs." * Add watchdog timer support to r8a77970 (V3M) eagle board Geert Uytterhoven says "This allows to use the watchdog timer to reset the board, until PSCI is enhanced to include such functionality." * Use Use R-Car SDHI Gen3 fallback on r8a7795 (H3) and r8a7796 (M3-W) SoCs * Set driver type for MMC on r8a7795 (H3) and r8a7796 (M3-W) Salvator-X and Salvator-XS boards. Wolfram Sang says "These boards are known to have eMMC issues with the default driver type. Specify a working one." * tag 'renesas-arm64-dt-for-v4.16' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/horms/renesas: (54 commits) arm64: dts: renesas: r8a77970: use SYSC power domain macros arm64: dts: renesas: r8a77970: use CPG core clock macros arm64: dts: renesas: v3msk: add EtherAVB support arm64: dts: renesas: initial V3MSK board device tree arm64: dts: renesas: r8a77995: Connect Ethernet-AVB to IPMMU-RT arm64: dts: renesas: r8a77995: Add IPMMU device nodes arm64: dts: renesas: r8a77970: Enable IPMMU-DS1, RT and MM arm64: dts: renesas: r8a77970: Connect Ethernet-AVB to IPMMU-RT arm64: dts: renesas: r8a77970: Tie SYS-DMAC to IPMMU-DS1 arm64: dts: renesas: r8a77970: Add IPMMU device nodes arm64: dts: renesas: r8a77995: add DMA for SCIF2 arm64: dts: renesas: r8a77970: sort includes arm64: dts: renesas: r8a7795: Increase the number of GPIO bank 1 ports to 29 arm64: dts: renesas: r8a77995: Add CAN FD support arm64: dts: renesas: r8a77995: Add CAN support arm64: dts: renesas: r8a77995: Add CAN external clock support arm64: dts: renesas: r8a7795-salvator-xs: Add SoC name to file header arm64: dts: renesas: r8a7796-salvator-x: Add SoC name to file header arm64: dts: renesas: r8a7795-salvator-x: Add SoC name to file header arm64: dts: renesas: r8a7795-es1-salvator-x: Add SoC name to file header ...
2017-12-21Merge tag 'renesas-dt-for-v4.16' of ↵Arnd Bergmann
ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/dt Pull "Renesas ARM Based SoC DT Updates for v4.16" from Simon Horman: * Convert to named i2c-gpio bindings Geert Uytterhoeven says "Commits 7d29f509d2cfd807 ("dt-bindings: i2c: i2c-gpio: Add support for named gpios") and 05c74778858d7d99 ("i2c: gpio: Add support for named gpios in DT") introduced named i2c-gpio DT bindings, and deprecated the more error-prone unnamed variant. This patch series switches all Renesas boards to the new bindings, and adds the missing GPIO_OPEN_DRAIN I/O flags, which were implicitly assumed before..." ... Note that after this series is applied, the i2c-gpio buses are no longer detected when booting new DTBs on old (v4.14 and older) kernels, which should not be an issue. Booting old DTBs on new kernels is not affected." * Update DTS for CMT DT binding rework Geert Uytterhoeven says "This patch series updates the CMT device nodes in the various Renesas DTS files sh_cmt clocksource driver for the recent DT binding rework that was merged in v4.14-rc1 and v4.15-rc1..." * Add SMP support to r8a7794 (R-Car E2) SoC Sergei Shtylyov says "Add the device tree node for the Advanced Power Management Unit (APMU). Use the "enable-method" prop to point out that the APMU should be used for the SMP support." * Correct primary compatible value for eeprom on r7s72100 (RZ/A1H) genmai and r8a7791 (R-Car M2-W) koelsh boards Geert Uytterhoeven says "The Renesas part numbers of the two-wire serial interface EEPROMs do not follow the 24Cxx pattern, but the R1EX24xxx pattern. Hence change the primary compatible values to the appropriate variant of "renesas,r1ex24xxx", like is already done on Gose."" * Move cec_clock to root node on r8a7791 (R-Car M2-W) koelsh board r8a7791 (R-Car M2-W) koelsh board * Use R-Car SDHI and Ether Gen1 and 2 fallback compat strings Use recently posted R-Car SDHI and Ether Gen 1 and 2 fallback compat strings in the DT of Renesas ARM based SoCs. * Add IIC cores to dtsi of r8a7745 (RZ/G1E) SoC * Rework DT architecture for r8a7745 (RZ/G1E) iW-RainboW-G22D development platform and add serial support. Fabrizio Castro says "... define a new DT architecture for the iW-RainboW-G22D SODIMM Development Platform to include the configuration with the HDMI daughter board and to define the serial interfaces." * Add USB function support to r8a7745 (RZ/G1E) iW-RainboW-G22D development platform * Add PCIEC and ttySC3 support to r8a7743 (RZ/G1M) iW-RainboW-G20M-Qseven SoM * Add VIN support to r8a7743 (RZ/G1M) and r8a7745 (RZ/G1E) SoCs * Add CAN and HDMI support to r8a7743 (RZ/G1M) iW-RainboW-G20D-Qseven and r8a7745 (RZ/G1E) iW-RainboW-G22D development platforms * tag 'renesas-dt-for-v4.16' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/horms/renesas: (61 commits) ARM: dts: alt: Convert to named i2c-gpio bindings ARM: dts: koelsch: Convert to named i2c-gpio bindings ARM: dts: lager: Convert to named i2c-gpio bindings ARM: dts: armadillo800eva: Convert to named i2c-gpio bindings ARM: dts: sh73a0: Remove CMT renesas,channels-mask ARM: dts: r8a7794: Remove CMT renesas,channels-mask ARM: dts: r8a7793: Remove CMT renesas,channels-mask ARM: dts: r8a7791: Remove CMT renesas,channels-mask ARM: dts: r8a7790: Remove CMT renesas,channels-mask ARM: dts: r8a7740: Remove CMT renesas,channels-mask ARM: dts: r8a73a4: Remove CMT renesas,channels-mask ARM: dts: r8a7794: Update CMT compat strings ARM: dts: r8a7793: Update CMT compat strings ARM: dts: r8a7791: Update CMT compat strings ARM: dts: r8a7790: Update CMT compat strings ARM: dts: r8a73a4: Update CMT compat string ARM: dts: r8a7794: Add SMP support ARM: dts: genmai: Correct primary compatible value for eeprom ARM: dts: koelsch: Correct primary compatible value for eeprom ARM: dts: r8a7745: add VIN dt support ...
2017-12-21Merge tag 'renesas-dt-bindings-for-v4.16' of ↵Arnd Bergmann
ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/dt Pull "Renesas ARM Based SoC DT Bindings Updates for v4.16" from Simon Horman: * Document V3MSK board bindings These are the bindings for the R-Car V3M Starter Kit * Document M3-W-based Salvator-XS board bingigns Geert Uytterhoeven says "The Renesas Salvator-XS (Salvator-X 2nd version) development board can be equipped with either an R-Car H3 ES2.0 or M3-W ES1.x SiP, which are pin-compatible." * tag 'renesas-dt-bindings-for-v4.16' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/horms/renesas: arm64: renesas: document V3MSK board bindings ARM: shmobile: Document Renesas M3-W-based Salvator-XS board DT bindings
2017-12-21arm64: dts: hisilicon: hi6220-hikey: Allow USR1 LED to notify kernel panicAmit Kucheria
Blink the LED on a kernel panic. Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org> Acked-by: Guodong Xu <guodong.xu@linaro.org> Acked-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2017-12-21arm64: dts: hisilicon: hi3660-hikey960: Allow USR4 LED to notify kernel panicAmit Kucheria
Blink the LED on a kernel panic. Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org> Acked-by: Guodong Xu <guodong.xu@linaro.org> Tested-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2017-12-21arm64: dts: qcom: apq8016-sbc: Allow USR4 LED to notify kernel panicAmit Kucheria
Blink the LED on a kernel panic. Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org> Acked-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2017-12-21ARM: make ARCH_S3C24XX select USE_OF and clean-up boot/dts/MakefileMasahiro Yamada
ARCH_S3C24XX is a very exceptional platform that some DT files in arch/arm/boot/dts/, but does not select USE_OF. All the other platforms with DT files correctly select USE_OF directly or indirectly (Most of them are either ARCH_MULTIPLATFORM or ARM_SINGLE_ARMV7M). With ARCH_S3C24XX fixed, "ifeq ($(CONFIG_OF),y)" in DT Makefile can be deleted. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2017-12-21ARM: dts: socfpga: Add generic compatible string for I2C EEPROMJavier Martinez Canillas
The at24 driver allows to register I2C EEPROM chips using different vendor and devices, but the I2C subsystem does not take the vendor into account when matching using the I2C table since it only has device entries. But when matching using an OF table, both the vendor and device has to be taken into account so the driver defines only a set of compatible strings using the "atmel" vendor as a generic fallback for compatible I2C devices. So add this generic fallback to the device node compatible string to make the device to match the driver using the OF device ID table. Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2017-12-21ARM: dts: lpc18xx: Add generic compatible string for I2C EEPROMJavier Martinez Canillas
The at24 driver allows to register I2C EEPROM chips using different vendor and devices, but the I2C subsystem does not take the vendor into account when matching using the I2C table since it only has device entries. But when matching using an OF table, both the vendor and device has to be taken into account so the driver defines only a set of compatible strings using the "atmel" vendor as a generic fallback for compatible I2C devices. So add this generic fallback to the device node compatible string to make the device to match the driver using the OF device ID table. Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2017-12-21ARM: dts: efm32: Add generic compatible string for I2C EEPROMJavier Martinez Canillas
The at24 driver allows to register I2C EEPROM chips using different vendor and devices, but the I2C subsystem does not take the vendor into account when matching using the I2C table since it only has device entries. But when matching using an OF table, both the vendor and device has to be taken into account so the driver defines only a set of compatible strings using the "atmel" vendor as a generic fallback for compatible I2C devices. So add this generic fallback to the device node compatible string to make the device to match the driver using the OF device ID table. Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2017-12-17Linux 4.15-rc4Linus Torvalds
2017-12-17Revert "exec: avoid RLIMIT_STACK races with prlimit()"Kees Cook
This reverts commit 04e35f4495dd560db30c25efca4eecae8ec8c375. SELinux runs with secureexec for all non-"noatsecure" domain transitions, which means lots of processes end up hitting the stack hard-limit change that was introduced in order to fix a race with prlimit(). That race fix will need to be redesigned. Reported-by: Laura Abbott <labbott@redhat.com> Reported-by: Tomáš Trnka <trnka@scm.com> Cc: stable@vger.kernel.org Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-12-17Merge branch 'WIP.x86-pti.base-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull Page Table Isolation (PTI) v4.14 backporting base tree from Ingo Molnar: "This tree contains the v4.14 PTI backport preparatory tree, which consists of four merges of upstream trees and 7 cherry-picked commits, which the upcoming PTI work depends on" NOTE! The resulting tree is exactly the same as the original base tree (ie the diff between this commit and its immediate first parent is empty). The only reason for this merge is literally to have a common point for the actual PTI changes so that the commits can be shared in both the 4.15 and 4.14 trees. * 'WIP.x86-pti.base-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/mm/kasan: Don't use vmemmap_populate() to initialize shadow locking/barriers: Convert users of lockless_dereference() to READ_ONCE() locking/barriers: Add implicit smp_read_barrier_depends() to READ_ONCE() bpf: fix build issues on um due to mising bpf_perf_event.h perf/x86: Enable free running PEBS for REGS_USER/INTR x86: Make X86_BUG_FXSAVE_LEAK detectable in CPUID on AMD x86/cpufeature: Add User-Mode Instruction Prevention definitions
2017-12-17Merge branch 'WIP.x86-pti.base.prep-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull Page Table Isolation (PTI) preparatory tree from Ingo Molnar: "This does a rename to free up linux/pti.h to be used by the upcoming page table isolation feature" * 'WIP.x86-pti.base.prep-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: drivers/misc/intel/pti: Rename the header file to free up the namespace
2017-12-17Merge branch 'timers-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull timer fix from Thomas Gleixner: "A single bugfix which prevents arbitrary sigev_notify values in posix-timers" * 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: posix-timer: Properly check sigevent->sigev_notify
2017-12-17Merge tag 'dmaengine-fix-4.15-rc4' of ↵Linus Torvalds
git://git.infradead.org/users/vkoul/slave-dma Pull dmaengine fixes from Vinod Koul: "This time consisting of fixes in a bunch of drivers and the dmatest module: - Fix for disable clk on error path in fsl-edma driver - Disable clk fail fix in jz4740 driver - Fix long pending bug in dmatest driver for dangling pointer - Fix potential NULL pointer dereference in at_hdmac driver - Error handling path in ioat driver" * tag 'dmaengine-fix-4.15-rc4' of git://git.infradead.org/users/vkoul/slave-dma: dmaengine: fsl-edma: disable clks on all error paths dmaengine: jz4740: disable/unprepare clk if probe fails dmaengine: dmatest: move callback wait queue to thread context dmaengine: at_hdmac: fix potential NULL pointer dereference in atc_prep_dma_interleaved dmaengine: ioat: Fix error handling path
2017-12-17cramfs: fix MTD dependencyArnd Bergmann
With CONFIG_MTD=m and CONFIG_CRAMFS=y, we now get a link failure: fs/cramfs/inode.o: In function `cramfs_mount': inode.c:(.text+0x220): undefined reference to `mount_mtd' fs/cramfs/inode.o: In function `cramfs_mtd_fill_super': inode.c:(.text+0x6d8): undefined reference to `mtd_point' inode.c:(.text+0xae4): undefined reference to `mtd_unpoint' This adds a more specific Kconfig dependency to avoid the broken configuration. Alternatively we could make CRAMFS itself depend on "MTD || !MTD" with a similar result. Fixes: 99c18ce580c6 ("cramfs: direct memory access support") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Nicolas Pitre <nico@linaro.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-12-17Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull vfs fixes from Al Viro: "The alloc_super() one is a regression in this merge window, lazytime thing is older..." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: VFS: Handle lazytime in do_mount() alloc_super(): do ->s_umount initialization earlier
2017-12-17Merge tag 'ext4_for_stable' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 Pull ext4 fixes from Ted Ts'o: "Fix a regression which caused us to fail to interpret symlinks in very ancient ext3 file system images. Also fix two xfstests failures, one of which could cause an OOPS, plus an additional bug fix caught by fuzz testing" * tag 'ext4_for_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: ext4: fix crash when a directory's i_size is too small ext4: add missing error check in __ext4_new_inode() ext4: fix fdatasync(2) after fallocate(2) operation ext4: support fast symlinks from ext3 file systems
2017-12-17x86/mm/kasan: Don't use vmemmap_populate() to initialize shadowAndrey Ryabinin
[ Note, this is a Git cherry-pick of the following commit: d17a1d97dc20: ("x86/mm/kasan: don't use vmemmap_populate() to initialize shadow") ... for easier x86 PTI code testing and back-porting. ] The KASAN shadow is currently mapped using vmemmap_populate() since that provides a semi-convenient way to map pages into init_top_pgt. However, since that no longer zeroes the mapped pages, it is not suitable for KASAN, which requires zeroed shadow memory. Add kasan_populate_shadow() interface and use it instead of vmemmap_populate(). Besides, this allows us to take advantage of gigantic pages and use them to populate the shadow, which should save us some memory wasted on page tables and reduce TLB pressure. Link: http://lkml.kernel.org/r/20171103185147.2688-2-pasha.tatashin@oracle.com Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com> Signed-off-by: Pavel Tatashin <pasha.tatashin@oracle.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Steven Sistare <steven.sistare@oracle.com> Cc: Daniel Jordan <daniel.m.jordan@oracle.com> Cc: Bob Picco <bob.picco@oracle.com> Cc: Michal Hocko <mhocko@suse.com> Cc: Alexander Potapenko <glider@google.com> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Christian Borntraeger <borntraeger@de.ibm.com> Cc: David S. Miller <davem@davemloft.net> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Matthew Wilcox <willy@infradead.org> Cc: Mel Gorman <mgorman@techsingularity.net> Cc: Michal Hocko <mhocko@kernel.org> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Will Deacon <will.deacon@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-12-17locking/barriers: Convert users of lockless_dereference() to READ_ONCE()Will Deacon
[ Note, this is a Git cherry-pick of the following commit: 506458efaf15 ("locking/barriers: Convert users of lockless_dereference() to READ_ONCE()") ... for easier x86 PTI code testing and back-porting. ] READ_ONCE() now has an implicit smp_read_barrier_depends() call, so it can be used instead of lockless_dereference() without any change in semantics. Signed-off-by: Will Deacon <will.deacon@arm.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/1508840570-22169-4-git-send-email-will.deacon@arm.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-12-17locking/barriers: Add implicit smp_read_barrier_depends() to READ_ONCE()Will Deacon
[ Note, this is a Git cherry-pick of the following commit: 76ebbe78f739 ("locking/barriers: Add implicit smp_read_barrier_depends() to READ_ONCE()") ... for easier x86 PTI code testing and back-porting. ] In preparation for the removal of lockless_dereference(), which is the same as READ_ONCE() on all architectures other than Alpha, add an implicit smp_read_barrier_depends() to READ_ONCE() so that it can be used to head dependency chains on all architectures. Signed-off-by: Will Deacon <will.deacon@arm.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/1508840570-22169-3-git-send-email-will.deacon@arm.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-12-17bpf: fix build issues on um due to mising bpf_perf_event.hDaniel Borkmann
[ Note, this is a Git cherry-pick of the following commit: a23f06f06dbe ("bpf: fix build issues on um due to mising bpf_perf_event.h") ... for easier x86 PTI code testing and back-porting. ] Since c895f6f703ad ("bpf: correct broken uapi for BPF_PROG_TYPE_PERF_EVENT program type") um (uml) won't build on i386 or x86_64: [...] CC init/main.o In file included from ../include/linux/perf_event.h:18:0, from ../include/linux/trace_events.h:10, from ../include/trace/syscall.h:7, from ../include/linux/syscalls.h:82, from ../init/main.c:20: ../include/uapi/linux/bpf_perf_event.h:11:32: fatal error: asm/bpf_perf_event.h: No such file or directory #include <asm/bpf_perf_event.h> [...] Lets add missing bpf_perf_event.h also to um arch. This seems to be the only one still missing. Fixes: c895f6f703ad ("bpf: correct broken uapi for BPF_PROG_TYPE_PERF_EVENT program type") Reported-by: Randy Dunlap <rdunlap@infradead.org> Suggested-by: Richard Weinberger <richard@sigma-star.at> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Tested-by: Randy Dunlap <rdunlap@infradead.org> Cc: Hendrik Brueckner <brueckner@linux.vnet.ibm.com> Cc: Richard Weinberger <richard@sigma-star.at> Acked-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Richard Weinberger <richard@nod.at> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-12-17perf/x86: Enable free running PEBS for REGS_USER/INTRAndi Kleen
[ Note, this is a Git cherry-pick of the following commit: a47ba4d77e12 ("perf/x86: Enable free running PEBS for REGS_USER/INTR") ... for easier x86 PTI code testing and back-porting. ] Currently free running PEBS is disabled when user or interrupt registers are requested. Most of the registers are actually available in the PEBS record and can be supported. So we just need to check for the supported registers and then allow it: it is all except for the segment register. For user registers this only works when the counter is limited to ring 3 only, so this also needs to be checked. Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/20170831214630.21892-1-andi@firstfloor.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-12-17x86: Make X86_BUG_FXSAVE_LEAK detectable in CPUID on AMDRudolf Marek
[ Note, this is a Git cherry-pick of the following commit: 2b67799bdf25 ("x86: Make X86_BUG_FXSAVE_LEAK detectable in CPUID on AMD") ... for easier x86 PTI code testing and back-porting. ] The latest AMD AMD64 Architecture Programmer's Manual adds a CPUID feature XSaveErPtr (CPUID_Fn80000008_EBX[2]). If this feature is set, the FXSAVE, XSAVE, FXSAVEOPT, XSAVEC, XSAVES / FXRSTOR, XRSTOR, XRSTORS always save/restore error pointers, thus making the X86_BUG_FXSAVE_LEAK workaround obsolete on such CPUs. Signed-Off-By: Rudolf Marek <r.marek@assembler.cz> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Borislav Petkov <bp@suse.de> Tested-by: Borislav Petkov <bp@suse.de> Cc: Andy Lutomirski <luto@amacapital.net> Link: https://lkml.kernel.org/r/bdcebe90-62c5-1f05-083c-eba7f08b2540@assembler.cz Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-12-17x86/cpufeature: Add User-Mode Instruction Prevention definitionsRicardo Neri
[ Note, this is a Git cherry-pick of the following commit: (limited to the cpufeatures.h file) 3522c2a6a4f3 ("x86/cpufeature: Add User-Mode Instruction Prevention definitions") ... for easier x86 PTI code testing and back-porting. ] User-Mode Instruction Prevention is a security feature present in new Intel processors that, when set, prevents the execution of a subset of instructions if such instructions are executed in user mode (CPL > 0). Attempting to execute such instructions causes a general protection exception. The subset of instructions comprises: * SGDT - Store Global Descriptor Table * SIDT - Store Interrupt Descriptor Table * SLDT - Store Local Descriptor Table * SMSW - Store Machine Status Word * STR - Store Task Register This feature is also added to the list of disabled-features to allow a cleaner handling of build-time configuration. Signed-off-by: Ricardo Neri <ricardo.neri-calderon@linux.intel.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Borislav Petkov <bp@suse.de> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Andy Lutomirski <luto@kernel.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Chen Yucong <slaoub@gmail.com> Cc: Chris Metcalf <cmetcalf@mellanox.com> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Huang Rui <ray.huang@amd.com> Cc: Jiri Slaby <jslaby@suse.cz> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Michael S. Tsirkin <mst@redhat.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Paul Gortmaker <paul.gortmaker@windriver.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ravi V. Shankar <ravi.v.shankar@intel.com> Cc: Shuah Khan <shuah@kernel.org> Cc: Tony Luck <tony.luck@intel.com> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: ricardo.neri@intel.com Link: http://lkml.kernel.org/r/1509935277-22138-7-git-send-email-ricardo.neri-calderon@linux.intel.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-12-17Merge commit 'upstream-x86-virt' into WIP.x86/mmIngo Molnar
Merge a minimal set of virt cleanups, for a base for the MM isolation patches. Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-12-17Merge branch 'upstream-acpi-fixes' into WIP.x86/pti.baseIngo Molnar
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-12-17Merge branch 'upstream-x86-selftests' into WIP.x86/pti.baseIngo Molnar
Conflicts: arch/x86/kernel/cpu/Makefile Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-12-17Merge commit 'upstream-x86-entry' into WIP.x86/mmIngo Molnar
Pull in a minimal set of v4.15 entry code changes, for a base for the MM isolation patches. Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-12-17drivers/misc/intel/pti: Rename the header file to free up the namespaceIngo Molnar
We'd like to use the 'PTI' acronym for 'Page Table Isolation' - free up the namespace by renaming the <linux/pti.h> driver header to <linux/intel-pti.h>. (Also standardize the header guard name while at it.) Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: J Freyensee <james_p_freyensee@linux.intel.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-12-16Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdmaLinus Torvalds
Pull rdma fixes from Jason Gunthorpe: "More fixes from testing done on the rc kernel, including more SELinux testing. Looking forward, lockdep found regression today in ipoib which is still being fixed. Summary: - Fix for SELinux on the umad SMI path. Some old hardware does not fill the PKey properly exposing another bug in the newer SELinux code. - Check the input port as we can exceed array bounds from this user supplied value - Users are unable to use the hash field support as they want due to incorrect checks on the field restrictions, correct that so the feature works as intended - User triggerable oops in the NETLINK_RDMA handler - cxgb4 driver fix for a bad interaction with CQ flushing in iser caused by patches in this merge window, and bad CQ flushing during normal close. - Unbalanced memalloc_noio in ipoib in an error path" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: IB/ipoib: Restore MM behavior in case of tx_ring allocation failure iw_cxgb4: only insert drain cqes if wq is flushed iw_cxgb4: only clear the ARMED bit if a notification is needed RDMA/netlink: Fix general protection fault IB/mlx4: Fix RSS hash fields restrictions IB/core: Don't enforce PKey security on SMI MADs IB/core: Bound check alternate path port number
2017-12-16Merge branch 'i2c/for-current' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux Pull i2c fixes from Wolfram Sang: "Two bugfixes for the AT24 I2C eeprom driver and some minor corrections for I2C bus drivers" * 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: i2c: piix4: Fix port number check on release i2c: stm32: Fix copyrights i2c-cht-wc: constify platform_device_id eeprom: at24: change nvmem stride to 1 eeprom: at24: fix I2C device selection for runtime PM
2017-12-16Merge tag 'nfs-for-4.15-3' of git://git.linux-nfs.org/projects/anna/linux-nfsLinus Torvalds
Pull NFS client fixes from Anna Schumaker: "This has two stable bugfixes, one to fix a BUG_ON() when nfs_commit_inode() is called with no outstanding commit requests and another to fix a race in the SUNRPC receive codepath. Additionally, there are also fixes for an NFS client deadlock and an xprtrdma performance regression. Summary: Stable bugfixes: - NFS: Avoid a BUG_ON() in nfs_commit_inode() by not waiting for a commit in the case that there were no commit requests. - SUNRPC: Fix a race in the receive code path Other fixes: - NFS: Fix a deadlock in nfs client initialization - xprtrdma: Fix a performance regression for small IOs" * tag 'nfs-for-4.15-3' of git://git.linux-nfs.org/projects/anna/linux-nfs: SUNRPC: Fix a race in the receive code path nfs: don't wait on commit in nfs_commit_inode() if there were no commit requests xprtrdma: Spread reply processing over more CPUs nfs: fix a deadlock in nfs client initialization
2017-12-15Revert "mm: replace p??_write with pte_access_permitted in fault + gup paths"Linus Torvalds
This reverts commits 5c9d2d5c269c, c7da82b894e9, and e7fe7b5cae90. We'll probably need to revisit this, but basically we should not complicate the get_user_pages_fast() case, and checking the actual page table protection key bits will require more care anyway, since the protection keys depend on the exact state of the VM in question. Particularly when doing a "remote" page lookup (ie in somebody elses VM, not your own), you need to be much more careful than this was. Dave Hansen says: "So, the underlying bug here is that we now a get_user_pages_remote() and then go ahead and do the p*_access_permitted() checks against the current PKRU. This was introduced recently with the addition of the new p??_access_permitted() calls. We have checks in the VMA path for the "remote" gups and we avoid consulting PKRU for them. This got missed in the pkeys selftests because I did a ptrace read, but not a *write*. I also didn't explicitly test it against something where a COW needed to be done" It's also not entirely clear that it makes sense to check the protection key bits at this level at all. But one possible eventual solution is to make the get_user_pages_fast() case just abort if it sees protection key bits set, which makes us fall back to the regular get_user_pages() case, which then has a vma and can do the check there if we want to. We'll see. Somewhat related to this all: what we _do_ want to do some day is to check the PAGE_USER bit - it should obviously always be set for user pages, but it would be a good check to have back. Because we have no generic way to test for it, we lost it as part of moving over from the architecture-specific x86 GUP implementation to the generic one in commit e585513b76f7 ("x86/mm/gup: Switch GUP to the generic get_user_page_fast() implementation"). Cc: Peter Zijlstra <peterz@infradead.org> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Dave Hansen <dave.hansen@intel.com> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: "Jérôme Glisse" <jglisse@redhat.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-12-15Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds
Pull networking fixes from David Miller: 1) Clamp timeouts to INT_MAX in conntrack, from Jay Elliot. 2) Fix broken UAPI for BPF_PROG_TYPE_PERF_EVENT, from Hendrik Brueckner. 3) Fix locking in ieee80211_sta_tear_down_BA_sessions, from Johannes Berg. 4) Add missing barriers to ptr_ring, from Michael S. Tsirkin. 5) Don't advertise gigabit in sh_eth when not available, from Thomas Petazzoni. 6) Check network namespace when delivering to netlink taps, from Kevin Cernekee. 7) Kill a race in raw_sendmsg(), from Mohamed Ghannam. 8) Use correct address in TCP md5 lookups when replying to an incoming segment, from Christoph Paasch. 9) Add schedule points to BPF map alloc/free, from Eric Dumazet. 10) Don't allow silly mtu values to be used in ipv4/ipv6 multicast, also from Eric Dumazet. 11) Fix SKB leak in tipc, from Jon Maloy. 12) Disable MAC learning on OVS ports of mlxsw, from Yuval Mintz. 13) SKB leak fix in skB_complete_tx_timestamp(), from Willem de Bruijn. 14) Add some new qmi_wwan device IDs, from Daniele Palmas. 15) Fix static key imbalance in ingress qdisc, from Jiri Pirko. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (76 commits) net: qcom/emac: Reduce timeout for mdio read/write net: sched: fix static key imbalance in case of ingress/clsact_init error net: sched: fix clsact init error path ip_gre: fix wrong return value of erspan_rcv net: usb: qmi_wwan: add Telit ME910 PID 0x1101 support pkt_sched: Remove TC_RED_OFFLOADED from uapi net: sched: Move to new offload indication in RED net: sched: Add TCA_HW_OFFLOAD net: aquantia: Increment driver version net: aquantia: Fix typo in ethtool statistics names net: aquantia: Update hw counters on hw init net: aquantia: Improve link state and statistics check interval callback net: aquantia: Fill in multicast counter in ndev stats from hardware net: aquantia: Fill ndev stat couters from hardware net: aquantia: Extend stat counters to 64bit values net: aquantia: Fix hardware DMA stream overload on large MRRS net: aquantia: Fix actual speed capabilities reporting sock: free skb in skb_complete_tx_timestamp on error s390/qeth: update takeover IPs after configuration change s390/qeth: lock IP table while applying takeover changes ...
2017-12-15Merge tag 'usb-4.15-rc4' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB fixes from Greg KH: "Here are some USB fixes for 4.15-rc4. There is the usual handful gadget/dwc2/dwc3 fixes as always, for reported issues. But the most important things in here is the core fix from Alan Stern to resolve a nasty security bug (my first attempt is reverted, Alan's was much cleaner), as well as a number of usbip fixes from Shuah Khan to resolve those reported security issues. All of these have been in linux-next with no reported issues" * tag 'usb-4.15-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: USB: core: prevent malicious bNumInterfaces overflow Revert "USB: core: only clean up what we allocated" USB: core: only clean up what we allocated Revert "usb: gadget: allow to enable legacy drivers without USB_ETH" usb: gadget: webcam: fix V4L2 Kconfig dependency usb: dwc2: Fix TxFIFOn sizes and total TxFIFO size issues usb: dwc3: gadget: Fix PCM1 for ISOC EP with ep->mult less than 3 usb: dwc3: of-simple: set dev_pm_ops usb: dwc3: of-simple: fix missing clk_disable_unprepare usb: dwc3: gadget: Wait longer for controller to end command processing usb: xhci: fix TDS for MTK xHCI1.1 xhci: Don't add a virt_dev to the devs array before it's fully allocated usbip: fix stub_send_ret_submit() vulnerability to null transfer_buffer usbip: prevent vhci_hcd driver from leaking a socket pointer address usbip: fix stub_rx: harden CMD_SUBMIT path to handle malicious input usbip: fix stub_rx: get_pipe() to validate endpoint number tools/usbip: fixes potential (minor) "buffer overflow" (detected on recent gcc with -Werror) USB: uas and storage: Add US_FL_BROKEN_FUA for another JMicron JMS567 ID usb: musb: da8xx: fix babble condition handling
2017-12-15Merge tag 'staging-4.15-rc4' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging Pull staging fixes from Greg KH: "Here are some small staging driver fixes for 4.15-rc4. One patch for the ccree driver to prevent an unitialized value from being returned to a caller, and the other fixes a logic error in the pi433 driver" * tag 'staging-4.15-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: staging: pi433: Fixes issue with bit shift in rf69_get_modulation staging: ccree: Uninitialized return in ssi_ahash_import()
2017-12-15Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhostLinus Torvalds
Pull virtio regression fixes from Michael Tsirkin: "Fixes two issues in the latest kernel" * tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: virtio_mmio: fix devm cleanup ptr_ring: fix up after recent ptr_ring changes
2017-12-15Merge tag 'for-4.15/dm-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm Pull device mapper fixes from Mike Snitzer: - fix a particularly nasty DM core bug in a 4.15 refcount_t conversion. - fix various targets to dm_register_target after module __init resources created; otherwise racing lvm2 commands could result in a NULL pointer during initialization of associated DM kernel module. - fix regression in bio-based DM multipath queue_if_no_path handling. - fix DM bufio's shrinker to reclaim more than one buffer per scan. * tag 'for-4.15/dm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm: dm bufio: fix shrinker scans when (nr_to_scan < retain_target) dm mpath: fix bio-based multipath queue_if_no_path handling dm: fix various targets to dm_register_target after module __init resources created dm table: fix regression from improper dm_dev_internal.count refcount_t conversion
2017-12-15Merge tag 'scsi-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull SCSI fixes from James Bottomley: "The most important one is the bfa fix because it's easy to oops the kernel with this driver (this includes the commit that corrects the compiler warning in the original), a regression in the new timespec conversion in aacraid and a regression in the Fibre Channel ELS handling patch. The other three are a theoretical problem with termination in the vendor/host matching code and a use after free in lpfc. The additional patches are a fix for an I/O hang in the mq code under certain circumstances and a rare oops in some debugging code" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: scsi: core: Fix a scsi_show_rq() NULL pointer dereference scsi: MAINTAINERS: change FCoE list to linux-scsi scsi: libsas: fix length error in sas_smp_handler() scsi: bfa: fix type conversion warning scsi: core: run queue if SCSI device queue isn't ready and queue is idle scsi: scsi_devinfo: cleanly zero-pad devinfo strings scsi: scsi_devinfo: handle non-terminated strings scsi: bfa: fix access to bfad_im_port_s scsi: aacraid: address UBSAN warning regression scsi: libfc: fix ELS request handling scsi: lpfc: Use after free in lpfc_rq_buf_free()
2017-12-15Merge tag 'mmc-v4.15-rc2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc Pull MMC fixes from Ulf Hansson: "A couple of MMC fixes: - fix use of uninitialized drv_typ variable - apply NO_CMD23 quirk to some specific SD cards to make them work" * tag 'mmc-v4.15-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: mmc: core: apply NO_CMD23 quirk to some specific cards mmc: core: properly init drv_type
2017-12-15Merge tag 'ceph-for-4.15-rc4' of git://github.com/ceph/ceph-clientLinus Torvalds
Pull ceph fix from Ilya Dryomov: "CephFS inode trimming fix from Zheng, marked for stable" * tag 'ceph-for-4.15-rc4' of git://github.com/ceph/ceph-client: ceph: drop negative child dentries before try pruning inode's alias
2017-12-15Merge branch 'overlayfs-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs Pull overlayfs fixes from Miklos Szeredi: - fix incomplete syncing of filesystem - fix regression in readdir on ovl over 9p - only follow redirects when needed - misc fixes and cleanups * 'overlayfs-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs: ovl: fix overlay: warning prefix ovl: Use PTR_ERR_OR_ZERO() ovl: Sync upper dirty data when syncing overlayfs ovl: update ctx->pos on impure dir iteration ovl: Pass ovl_get_nlink() parameters in right order ovl: don't follow redirects if redirect_dir=off
2017-12-15net: qcom/emac: Reduce timeout for mdio read/writeHemanth Puranik
Currently mdio read/write takes around ~115us as the timeout between status check is set to 100us. By reducing the timeout to 1us mdio read/write takes ~15us to complete. This improves the link up event response. Signed-off-by: Hemanth Puranik <hpuranik@codeaurora.org> Acked-by: Timur Tabi <timur@codeaurora.org> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-15Merge tag 'arm64-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux Pull arm64 fixes from Will Deacon: "There are some significant fixes in here for FP state corruption, hardware access/dirty PTE corruption and an erratum workaround for the Falkor CPU. I'm hoping that things finally settle down now, but never say never... Summary: - Fix FPSIMD context switch regression introduced in -rc2 - Fix ABI break with SVE CPUID register reporting - Fix use of uninitialised variable - Fixes to hardware access/dirty management and sanity checking - CPU erratum workaround for Falkor CPUs - Fix reporting of writeable+executable mappings - Fix signal reporting for RAS errors" * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: arm64: fpsimd: Fix copying of FP state from signal frame into task struct arm64/sve: Report SVE to userspace via CPUID only if supported arm64: fix CONFIG_DEBUG_WX address reporting arm64: fault: avoid send SIGBUS two times arm64: hw_breakpoint: Use linux/uaccess.h instead of asm/uaccess.h arm64: Add software workaround for Falkor erratum 1041 arm64: Define cputype macros for Falkor CPU arm64: mm: Fix false positives in set_pte_at access/dirty race detection arm64: mm: Fix pte_mkclean, pte_mkdirty semantics arm64: Initialise high_memory global variable earlier
2017-12-15net: sched: fix static key imbalance in case of ingress/clsact_init errorJiri Pirko
Move static key increments to the beginning of the init function so they pair 1:1 with decrements in ingress/clsact_destroy, which is called in case ingress/clsact_init fails. Fixes: 6529eaba33f0 ("net: sched: introduce tcf block infractructure") Signed-off-by: Jiri Pirko <jiri@mellanox.com> Acked-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-15net: sched: fix clsact init error pathJiri Pirko
Since in qdisc_create, the destroy op is called when init fails, we don't do cleanup in init and leave it up to destroy. This fixes use-after-free when trying to put already freed block. Fixes: 6e40cf2d4dee ("net: sched: use extended variants of block_get/put in ingress and clsact qdiscs") Signed-off-by: Jiri Pirko <jiri@mellanox.com> Acked-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>