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2020-01-31Merge tag 'acpi-5.6-rc1-2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull more ACPI updates from Rafael Wysocki: "Fix up MAINTAINERS entires related to ACPI (Andy Shevchenko)" * tag 'acpi-5.6-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: MAINTAINERS: Sort entries in database for X-POWERS AXP288 MAINTAINERS: Sort entries in database for ACPICA MAINTAINERS: Sort entries in database for ACPI
2020-01-31Merge tag 'pm-5.6-rc1-2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull more power manadement updates from Rafael Wysocki: "Prevent cpufreq from creating excessively large stack frames and fix the handling of devices deleted during system-wide resume in the PM core (Rafael Wysocki), revert a problematic commit affecting the cpupower utility and correct its man page (Thomas Renninger, Brahadambal Srinivasan), and improve the intel_pstate_tracer utility (Doug Smythies)" * tag 'pm-5.6-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: tools/power/x86/intel_pstate_tracer: change several graphs to autoscale y-axis tools/power/x86/intel_pstate_tracer: changes for python 3 compatibility Correction to manpage of cpupower cpufreq: Avoid creating excessively large stack frames PM: core: Fix handling of devices deleted during system-wide resume cpupower: Revert library ABI changes from commit ae2917093fb60bdc1ed3e
2020-01-31Merge branches 'clk-imx', 'clk-ti', 'clk-xilinx', 'clk-nvidia', 'clk-qcom', ↵Stephen Boyd
'clk-freescale' and 'clk-qoriq' into clk-next - Support for Xilinx Versal platform clks - Display clk controller on qcom sc7180 - Video clk controller on qcom sc7180 - Graphics clk controller on qcom sc7180 - CPU PLLs for qcom msm8916 - Fixes for clk controllers on qcom msm8998 SoCs - Move qcom msm8974 gfx3d clk to RPM control - Display port clk support on qcom sdm845 SoCs - Global clk controller on qcom ipq6018 - Adjust composite clk to new way of describing clk parents - Add a driver for BCLK of Freescale SAI cores * clk-imx: (32 commits) clk: imx: Add support for i.MX8MP clock driver dt-bindings: imx: Add clock binding doc for i.MX8MP clk: imx: gate4: Switch imx_clk_gate4_flags() to clk_hw based API clk: imx: imx8mq: Switch to clk_hw based API clk: imx: imx8mm: Switch to clk_hw based API clk: imx: imx8mn: Switch to clk_hw based API clk: imx: Remove __init for imx_obtain_fixed_clk_hw() API clk: imx: gate3: Switch to clk_hw based API clk: imx: add hw API imx_clk_hw_mux2_flags clk: imx: add imx_unregister_hw_clocks clk: imx: clk-composite-8m: Switch to clk_hw based API clk: imx: clk-pll14xx: Switch to clk_hw based API clk: imx7up: Rename the clks to hws clk: imx: Rename the imx_clk_divider_gate to imply it's clk_hw based clk: imx: Rename the imx_clk_pfdv2 to imply it's clk_hw based clk: imx: Rename the imx_clk_pllv4 to imply it's clk_hw based clk: imx: Rename sccg and frac pll register to suggest clk_hw clk: imx: imx7ulp composite: Rename to show is clk_hw based clk: imx: pllv2: Switch to clk_hw based API clk: imx: pllv1: Switch to clk_hw based API ... * clk-ti: clk: ti: clkctrl: Fix hidden dependency to node name clk: ti: add clkctrl data dra7 sgx clk: ti: omap5: Add missing AESS clock clk: ti: dra7: fix parent for gmac_clkctrl clk: ti: dra7: add vpe clkctrl data clk: ti: dra7: add cam clkctrl data dt-bindings: clock: Move ti-dra7-atl.h to dt-bindings/clock * clk-xilinx: clk: zynqmp: Add support for clock with CLK_DIVIDER_POWER_OF_TWO flag clk: zynqmp: Fix divider calculation clk: zynqmp: Add support for get max divider clk: zynqmp: Warn user if clock user are more than allowed clk: zynqmp: Extend driver for versal dt-bindings: clock: Add bindings for versal clock driver * clk-nvidia: clk: tegra20/30: Explicitly set parent clock for Video Decoder clk: tegra20/30: Don't pre-initialize displays parent clock clk: tegra: divider: Check UART's divider enable-bit state on rate's recalculation clk: tegra: clk-dfll: Remove call to pm_runtime_irq_safe() clk: tegra: Mark fuse clock as critical * clk-qcom: (35 commits) clk: qcom: rpmh: Sort OF match table dt-bindings: fix warnings in validation of qcom,gcc.yaml dt-binding: fix compilation error of the example in qcom,gcc.yaml clk: qcom: Add ipq6018 Global Clock Controller support clk: qcom: Add DT bindings for ipq6018 gcc clock controller clk: qcom: gcc-msm8996: Fix parent for CLKREF clocks clk: qcom: rpmh: Add IPA clock for SC7180 clk: qcom: rpmh: skip undefined clocks when registering clk: qcom: Add video clock controller driver for SC7180 dt-bindings: clock: Introduce SC7180 QCOM Video clock bindings dt-bindings: clock: Add YAML schemas for the QCOM VIDEOCC clock bindings clk: qcom: Add graphics clock controller driver for SC7180 dt-bindings: clock: Introduce SC7180 QCOM Graphics clock bindings dt-bindings: clock: Add YAML schemas for the QCOM GPUCC clock bindings clk: qcom: apcs-msm8916: use clk_parent_data to specify the parent clk: qcom: Add display clock controller driver for SC7180 dt-bindings: clock: Introduce QCOM sc7180 display clock bindings dt-bindings: clock: Add YAML schemas for the QCOM DISPCC clock bindings clk: qcom: clk-alpha-pll: Add support for Fabia PLL calibration clk: qcom: alpha-pll: Remove useless read from set rate ... * clk-freescale: clk: fsl-sai: new driver dt-bindings: clock: document the fsl-sai driver clk: composite: add _register_composite_pdata() variants * clk-qoriq: clk: qoriq: add ls1088a hwaccel clocks support clk: ls1028a: Add clock driver for Display output interface dt/bindings: clk: Add YAML schemas for LS1028A Display Clock bindings
2020-01-31cifs: update internal module version numberSteve French
To 2.25 Signed-off-by: Steve French <stfrench@microsoft.com>
2020-01-31Merge branches 'clk-debugfs-danger', 'clk-basic-hw', 'clk-renesas', ↵Stephen Boyd
'clk-amlogic' and 'clk-allwinner' into clk-next - Support dangerous debugfs actions on clks with dead code - Convert gpio, fixed-factor, mux, gate, divider basic clks to hw based APIs * clk-debugfs-danger: clk: Add support for setting clk_rate via debugfs * clk-basic-hw: clk: divider: Add support for specifying parents via DT/pointers clk: gate: Add support for specifying parents via DT/pointers clk: mux: Add support for specifying parents via DT/pointers clk: asm9260: Use parent accuracy in fixed rate clk clk: fixed-rate: Document that accuracy isn't a rate clk: fixed-rate: Add clk flags for parent accuracy clk: fixed-rate: Add support for specifying parents via DT/pointers clk: fixed-rate: Document accuracy member clk: fixed-rate: Move to_clk_fixed_rate() to C file clk: fixed-rate: Remove clk_register_fixed_rate_with_accuracy() clk: fixed-rate: Convert to clk_hw based APIs clk: gpio: Use DT way of specifying parents * clk-renesas: clk: renesas: Prepare for split of R-Car H3 config symbol dt-bindings: clock: renesas: cpg-mssr: Fix r8a774b1 typo clk: renesas: r7s9210: Add SPIBSC clock clk: renesas: rcar-gen3: Allow changing the RPC[D2] clocks clk: renesas: Remove use of ARCH_R8A7796 clk: renesas: rcar-gen2: Change multipliers and dividers to u8 * clk-amlogic: clk: clarify that clk_set_rate() does updates from top to bottom clk: meson: meson8b: make the CCF use the glitch-free mali mux clk: meson: pll: Fix by 0 division in __pll_params_to_rate() clk: meson: g12a: fix missing uart2 in regmap table clk: meson: meson8b: use of_clk_hw_register to register the clocks clk: meson: meson8b: don't register the XTAL clock when provided via OF clk: meson: meson8b: change references to the XTAL clock to use [fw_]name clk: meson: meson8b: use clk_hw_set_parent in the CPU clock notifier clk: meson: add a driver for the Meson8/8b/8m2 DDR clock controller dt-bindings: clock: meson8b: add the clock inputs dt-bindings: clock: add the Amlogic Meson8 DDR clock controller binding * clk-allwinner: clk: sunxi: a23/a33: Export the MIPI PLL clk: sunxi: a31: Export the MIPI PLL clk: sunxi-ng: a64: export CLK_CPUX clock for DVFS clk: sunxi-ng: add mux and pll notifiers for A64 CPU clock clk: sunxi-ng: r40: Export MBUS clock clk: sunxi: use of_device_get_match_data
2020-01-31Merge branches 'clk-uniphier', 'clk-warn-critical', 'clk-ux500', ↵Stephen Boyd
'clk-kconfig' and 'clk-at91' into clk-next - Warn about critical clks that fail to enable or prepare - Detect more PRMCU variants in ux500 driver * clk-uniphier: clk: uniphier: Add SCSSI clock gate for each channel * clk-warn-critical: clk: Warn about critical clks that fail to enable clk: Don't try to enable critical clocks if prepare failed clk: tegra: Fix double-free in tegra_clk_init() clk: samsung: exynos5420: Keep top G3D clocks enabled clk: qcom: Avoid SMMU/cx gdsc corner cases clk: qcom: gcc-sc7180: Fix setting flag for votable GDSCs clk: Move clk_core_reparent_orphans() under CONFIG_OF clk: at91: fix possible deadlock clk: walk orphan list on clock provider registration clk: imx: pll14xx: fix clk_pll14xx_wait_lock clk: imx: clk-imx7ulp: Add missing sentinel of ulp_div_table clk: imx: clk-composite-8m: add lock to gate/mux * clk-ux500: clk: ux500: Fix up the SGA clock for some variants * clk-kconfig: clk: Fix Kconfig indentation * clk-at91: clk: at91: sam9x60: fix programmable clock prescaler clk: at91: sam9x60-pll: adapt PMC_PLL_ACR default value
2020-01-31Merge branches 'clk-init-allocation', 'clk-unused' and ↵Stephen Boyd
'clk-register-dt-node-better' into clk-next - Let clk_ops::init() return an error code - Add a clk_ops::terminate() callback to undo clk_ops::init() * clk-init-allocation: clk: add terminate callback to clk_ops clk: let init callback return an error code clk: actually call the clock init before any other callback of the clock * clk-unused: clk: bm1800: Remove set but not used variable 'fref' * clk-register-dt-node-better: clk: Use parent node pointer during registration if necessary
2020-01-31Merge tag 'gfs2-for-5.6' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2 Pull gfs2 updates from Andreas Gruenbacher: - Fix some corner cases on filesystems with a block size < page size. - Fix a corner case that could expose incorrect access times over nfs. - Revert an otherwise sensible revoke accounting cleanup that causes assertion failures. The revoke accounting is whacky and needs to be fixed properly before we can add back this cleanup. - Various other minor cleanups. In addition, please expect to see another pull request from Bob Peterson about his gfs2 recovery patch queue shortly. * tag 'gfs2-for-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2: Revert "gfs2: eliminate tr_num_revoke_rm" gfs2: remove unused LBIT macros fs/gfs2: remove unused IS_DINODE and IS_LEAF macros gfs2: Remove GFS2_MIN_LVB_SIZE define gfs2: Fix incorrect variable name gfs2: Avoid access time thrashing in gfs2_inode_lookup gfs2: minor cleanup: remove unneeded variable ret in gfs2_jdata_writepage gfs2: eliminate ssize parameter from gfs2_struct2blk gfs2: Another gfs2_find_jhead fix
2020-01-31Merge tag 'iomap-5.6-merge-3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linuxLinus Torvalds
Pull iomap fix from Darrick Wong: "A single patch fixing an off-by-one error when we're checking to see how far we're gotten into an EOF page" * tag 'iomap-5.6-merge-3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: fs: Fix page_mkwrite off-by-one errors
2020-01-31drm/tegra: sor: Initialize runtime PM before useThierry Reding
Commit fd67e9c6ed5a ("drm/tegra: Do not implement runtime PM") replaced the generic runtime PM usage by a host1x bus-specific implementation in order to work around some assumptions baked into runtime PM that are in conflict with the requirements in the Tegra DRM driver. Unfortunately the new runtime PM callbacks are not setup yet at the time when the SOR driver first needs to resume the device to register the SOR pad clock, and accesses to register will cause the system to hang. Note that this only happens on Tegra124 and Tegra210 because those are the only SoCs where the SOR pad clock is registered from the SOR driver. Later generations use a SOR pad clock provided by the BPMP. Fix this by moving the registration of the SOR pad clock after the host1x client has been registered. That's somewhat suboptimal because this could potentially, though it's very unlikely, cause the Tegra DRM to be probed if the SOR happens to be the last subdevice to register, only to be immediately removed again if the SOR pad output clock fails to register. That's just a minor annoyance, though, and doesn't justify implementing a workaround. Fixes: fd67e9c6ed5a ("drm/tegra: Do not implement runtime PM") Signed-off-by: Thierry Reding <treding@nvidia.com>
2020-01-31drm/tegra: sor: Disable runtime PM on probe failureThierry Reding
If the driver fails to probe, make sure to disable runtime PM again. While at it, make the cleanup code in ->remove() symmetric. Signed-off-by: Thierry Reding <treding@nvidia.com>
2020-01-31drm/tegra: sor: Suspend on clock registration failureThierry Reding
Make sure the SOR module is suspenden after we fail to register the SOR pad output clock. Signed-off-by: Thierry Reding <treding@nvidia.com>
2020-01-31xtensa: drop empty platform_* functions from platformsMax Filippov
Provide missing default implementation for platform_init and drop copies of default platform_init, platform_setup and platform_heartbeet from platforms/*/setup.c Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2020-01-31xtensa: clean up platform headersMax Filippov
Drop include directives for irrelevant headers in asm/platform.h and its users. Sort remaining headers. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2020-01-31xtensa: drop set_except_vector declarationMax Filippov
There's no implementation for set_except_vector function in the xtensa code. Drop its declaration. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2020-01-31Merge branch 'akpm' (patches from Andrew)Linus Torvalds
Pull updates from Andrew Morton: "Most of -mm and quite a number of other subsystems: hotfixes, scripts, ocfs2, misc, lib, binfmt, init, reiserfs, exec, dma-mapping, kcov. MM is fairly quiet this time. Holidays, I assume" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (118 commits) kcov: ignore fault-inject and stacktrace include/linux/io-mapping.h-mapping: use PHYS_PFN() macro in io_mapping_map_atomic_wc() execve: warn if process starts with executable stack reiserfs: prevent NULL pointer dereference in reiserfs_insert_item() init/main.c: fix misleading "This architecture does not have kernel memory protection" message init/main.c: fix quoted value handling in unknown_bootoption init/main.c: remove unnecessary repair_env_string in do_initcall_level init/main.c: log arguments and environment passed to init fs/binfmt_elf.c: coredump: allow process with empty address space to coredump fs/binfmt_elf.c: coredump: delete duplicated overflow check fs/binfmt_elf.c: coredump: allocate core ELF header on stack fs/binfmt_elf.c: make BAD_ADDR() unlikely fs/binfmt_elf.c: better codegen around current->mm fs/binfmt_elf.c: don't copy ELF header around fs/binfmt_elf.c: fix ->start_code calculation fs/binfmt_elf.c: smaller code generation around auxv vector fill lib/find_bit.c: uninline helper _find_next_bit() lib/find_bit.c: join _find_next_bit{_le} uapi: rename ext2_swab() to swab() and share globally in swab.h lib/scatterlist.c: adjust indentation in __sg_alloc_table ...
2020-01-31Merge tag 'modules-for-v5.6' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux Pull module updates from Jessica Yu: "Summary of modules changes for the 5.6 merge window: - Add "MS" (SHF_MERGE|SHF_STRINGS) section flags to __ksymtab_strings to indicate to the linker that it can perform string deduplication (i.e., duplicate strings are reduced to a single copy in the string table). This means any repeated namespace string would be merged to just one entry in __ksymtab_strings. - Various code cleanups and small fixes (fix small memleak in error path, improve moduleparam docs, silence rcu warnings, improve error logging)" * tag 'modules-for-v5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux: module.h: Annotate mod_kallsyms with __rcu module: avoid setting info->name early in case we can fall back to info->mod->name modsign: print module name along with error message kernel/module: Fix memleak in module_add_modinfo_attrs() export.h: reduce __ksymtab_strings string duplication by using "MS" section flags moduleparam: fix kerneldoc modules: lockdep: Suppress suspicious RCU usage warning
2020-01-31Merge tag 'mips_5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linuxLinus Torvalds
Pull MIPS changes from Paul Burton: "Nothing too big or scary in here: - Support mremap() for the VDSO, primarily to allow CRIU to restore the VDSO to its checkpointed location. - Restore the MIPS32 cBPF JIT, after having reverted the enablement of the eBPF JIT for MIPS32 systems in the 5.5 cycle. - Improve cop0 counter synchronization behaviour whilst onlining CPUs by running with interrupts disabled. - Better match FPU behaviour when emulating multiply-accumulate instructions on pre-r6 systems that implement IEEE754-2008 style MACs. - Loongson64 kernels now build using the MIPS64r2 ISA, allowing them to take advantage of instructions introduced by r2. - Support for the Ingenic X1000 SoC & the really nice little CU Neo development board that's using it. - Support for WMAC on GARDENA Smart Gateway devices. - Lots of cleanup & refactoring of SGI IP27 (Origin 2*) support in preparation for introducing IP35 (Origin 3*) support. - Various Kconfig & Makefile cleanups" * tag 'mips_5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: (60 commits) MIPS: PCI: Add detection of IOC3 on IO7, IO8, IO9 and Fuel MIPS: Loongson64: Disable exec hazard MIPS: Loongson64: Bump ISA level to MIPSR2 MIPS: Make DIEI support as a config option MIPS: OCTEON: octeon-irq: fix spelling mistake "to" -> "too" MIPS: asm: local: add barriers for Loongson MIPS: Loongson64: Select mac2008 only feature MIPS: Add MAC2008 Support Revert "MIPS: Add custom serial.h with BASE_BAUD override for generic kernel" MIPS: sort MIPS and MIPS_GENERIC Kconfig selects alphabetically (again) MIPS: make CPU_HAS_LOAD_STORE_LR opt-out MIPS: generic: don't unconditionally select PINCTRL MIPS: don't explicitly select LIBFDT in Kconfig MIPS: sync-r4k: do slave counter synchronization with disabled HW interrupts MIPS: SGI-IP30: Check for valid pointer before using it MIPS: syscalls: fix indentation of the 'SYSNR' message MIPS: boot: fix typo in 'vmlinux.lzma.its' target MIPS: fix indentation of the 'RELOCS' message dt-bindings: Document loongson vendor-prefix MIPS: CU1000-Neo: Refresh defconfig to support HWMON and WiFi. ...
2020-01-31Merge tag 'arc-5.6-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc Pull ARC updates from Vineet Gupta: - Wire up clone3 syscall - ARCv2 FPU state save/restore across context switch - AXS10x platform and misc fixes * tag 'arc-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc: ARCv2: fpu: preserve userspace fpu state ARC: fpu: declutter code, move bits out into fpu.h ARC: wireup clone3 syscall ARC: [plat-axs10x]: Add missing multicast filter number to GMAC node ARC: update feature support for jump-labels
2020-01-31Merge tag 'riscv-for-linus-5.6-mw0' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux Pull RISC-V updates from Palmer Dabbelt: "This contains a handful of patches for this merge window: - Support for kasan - 32-bit physical addresses on rv32i-based systems - Support for CONFIG_DEBUG_VIRTUAL - DT entry for the FU540 GPIO controller, which has recently had a device driver merged These boot a buildroot-based system on QEMU's virt board for me" * tag 'riscv-for-linus-5.6-mw0' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: riscv: dts: Add DT support for SiFive FU540 GPIO driver riscv: mm: add support for CONFIG_DEBUG_VIRTUAL riscv: keep 32-bit kernel to 32-bit phys_addr_t kasan: Add riscv to KASAN documentation. riscv: Add KASAN support kasan: No KASAN's memmove check if archs don't have it.
2020-01-31percpu: Separate decrypted varaibles anytime encryption can be enabledErdem Aktas
CONFIG_VIRTUALIZATION may not be enabled for memory encrypted guests. If disabled, decrypted per-CPU variables may end up sharing the same page with variables that should be left encrypted. Always separate per-CPU variables that should be decrypted into their own page anytime memory encryption can be enabled in the guest rather than rely on any other config option that may not be enabled. Fixes: ac26963a1175 ("percpu: Introduce DEFINE_PER_CPU_DECRYPTED") Cc: stable@vger.kernel.org # 4.15+ Signed-off-by: Erdem Aktas <erdemaktas@google.com> Signed-off-by: David Rientjes <rientjes@google.com> Signed-off-by: Dennis Zhou <dennis@kernel.org>
2020-01-31percpu: fix __percpu annotation in asm-genericLuc Van Oostenryck
The generic implementation of raw_cpu_generic_add_return() is: #define raw_cpu_generic_add_return(pcp, val) \ ({ \ typeof(&(pcp)) __p = raw_cpu_ptr(&(pcp)); \ \ *__p += val; \ *__p; \ }) where the 'pcp' argument is a __percpu lvalue. There, the variable '__p' is declared as a __percpu pointer the type of the address of 'pcp') but: 1) the value assigned to it, the return value of raw_cpu_ptr(), is a plain (__kernel) pointer, not a __percpu one. 2) this variable is dereferenced just after while a __percpu pointer is implicitly __noderef. So, fix the declaration of the 'pcp' variable to its correct type: the plain (non-percpu) pointer corresponding to pcp's address, using the fact that typeof() ignores the address space and the 'noderef' attribute of its agument. Same for raw_cpu_generic_xchg(), raw_cpu_generic_cmpxchg() & raw_cpu_generic_cmpxchg_double(). This removes 209 warnings on ARM, 525 on ARM64, 220 on x86 & more than 2600 on ppc64 (all of them with the default config). Cc: Tejun Heo <tj@kernel.org> Cc: Nicholas Piggin <npiggin@gmail.com> Reported-by: Ben Dooks <ben.dooks@codethink.co.uk> Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com> Acked-by: Christoph Lameter <cl@linux.com> Signed-off-by: Dennis Zhou <dennis@kernel.org>
2020-01-31Merge branch 'x86-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 fixes from Ingo Molnar: "Misc fixes: - three fixes and a cleanup for the resctrl code - a HyperV fix - a fix to /proc/kcore contents in live debugging sessions - a fix for the x86 decoder opcode map" * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/decoder: Add TEST opcode to Group3-2 x86/resctrl: Clean up unused function parameter in mkdir path x86/resctrl: Fix a deadlock due to inaccurate reference x86/resctrl: Fix use-after-free due to inaccurate refcount of rdtgroup x86/resctrl: Fix use-after-free when deleting resource groups x86/hyper-v: Add "polling" bit to hv_synic_sint x86/crash: Define arch_crash_save_vmcoreinfo() if CONFIG_CRASH_CORE=y
2020-01-31x86/boot: Handle malformed SRAT tables during early ACPI parsingSteven Clarkson
Break an infinite loop when early parsing of the SRAT table is caused by a subtable with zero length. Known to affect the ASUS WS X299 SAGE motherboard with firmware version 1201 which has a large block of zeros in its SRAT table. The kernel could boot successfully on this board/firmware prior to the introduction of early parsing this table or after a BIOS update. [ bp: Fixup whitespace damage and commit message. Make it return 0 to denote that there are no immovable regions because who knows what else is broken in this BIOS. ] Fixes: 02a3e3cdb7f1 ("x86/boot: Parse SRAT table and count immovable memory regions") Signed-off-by: Steven Clarkson <sc@lambdal.com> Signed-off-by: Borislav Petkov <bp@suse.de> Cc: linux-acpi@vger.kernel.org Link: https://bugzilla.kernel.org/show_bug.cgi?id=206343 Link: https://lkml.kernel.org/r/CAHKq8taGzj0u1E_i=poHUam60Bko5BpiJ9jn0fAupFUYexvdUQ@mail.gmail.com
2020-01-31netfilter: nf_flowtable: fix documentationMatteo Croce
In the flowtable documentation there is a missing semicolon, the command as is would give this error: nftables.conf:5:27-33: Error: syntax error, unexpected devices, expecting newline or semicolon hook ingress priority 0 devices = { br0, pppoe-data }; ^^^^^^^ nftables.conf:4:12-13: Error: invalid hook (null) flowtable ft { ^^ Fixes: 19b351f16fd9 ("netfilter: add flowtable documentation") Signed-off-by: Matteo Croce <mcroce@redhat.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2020-01-31netfilter: flowtable: Fix setting forgotten NF_FLOW_HW_DEAD flagPaul Blakey
During the refactor this was accidently removed. Fixes: ae29045018c8 ("netfilter: flowtable: add nf_flow_offload_tuple() helper") Signed-off-by: Paul Blakey <paulb@mellanox.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2020-01-31netfilter: flowtable: Fix missing flush hardware on table freePaul Blakey
If entries exist when freeing a hardware offload enabled table, we queue work for hardware while running the gc iteration. Execute it (flush) after queueing. Fixes: c29f74e0df7a ("netfilter: nf_flow_table: hardware offload support") Signed-off-by: Paul Blakey <paulb@mellanox.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2020-01-31netfilter: flowtable: Fix hardware flush order on nf_flow_table_cleanupPaul Blakey
On netdev down event, nf_flow_table_cleanup() is called for the relevant device and it cleans all the tables that are on that device. If one of those tables has hardware offload flag, nf_flow_table_iterate_cleanup flushes hardware and then runs the gc. But the gc can queue more hardware work, which will take time to execute. Instead first add the work, then flush it, to execute it now. Fixes: c29f74e0df7a ("netfilter: nf_flow_table: hardware offload support") Signed-off-by: Paul Blakey <paulb@mellanox.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2020-01-31netfilter: Use kvcallocJoe Perches
Convert the uses of kvmalloc_array with __GFP_ZERO to the equivalent kvcalloc. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2020-01-31kcov: ignore fault-inject and stacktraceDmitry Vyukov
Don't instrument 3 more files that contain debugging facilities and produce large amounts of uninteresting coverage for every syscall. The following snippets are sprinkled all over the place in kcov traces in a debugging kernel. We already try to disable instrumentation of stack unwinding code and of most debug facilities. I guess we did not use fault-inject.c at the time, and stacktrace.c was somehow missed (or something has changed in kernel/configs). This change both speeds up kcov (kernel doesn't need to store these PCs, user-space doesn't need to process them) and frees trace buffer capacity for more useful coverage. should_fail lib/fault-inject.c:149 fail_dump lib/fault-inject.c:45 stack_trace_save kernel/stacktrace.c:124 stack_trace_consume_entry kernel/stacktrace.c:86 stack_trace_consume_entry kernel/stacktrace.c:89 ... a hundred frames skipped ... stack_trace_consume_entry kernel/stacktrace.c:93 stack_trace_consume_entry kernel/stacktrace.c:86 Link: http://lkml.kernel.org/r/20200116111449.217744-1-dvyukov@gmail.com Signed-off-by: Dmitry Vyukov <dvyukov@google.com> Reviewed-by: Andrey Konovalov <andreyknvl@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-01-31include/linux/io-mapping.h-mapping: use PHYS_PFN() macro in ↵Andy Shevchenko
io_mapping_map_atomic_wc() Use PHYS_PFN() macro in io_mapping_map_atomic_wc() instead of open coded variant. Link: http://lkml.kernel.org/r/20191209165624.56351-1-andriy.shevchenko@linux.intel.com Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-01-31execve: warn if process starts with executable stackAlexey Dobriyan
There were few episodes of silent downgrade to an executable stack over years: 1) linking innocent looking assembly file will silently add executable stack if proper linker options is not given as well: $ cat f.S .intel_syntax noprefix .text .globl f f: ret $ cat main.c void f(void); int main(void) { f(); return 0; } $ gcc main.c f.S $ readelf -l ./a.out GNU_STACK 0x0000000000000000 0x0000000000000000 0x0000000000000000 0x0000000000000000 0x0000000000000000 RWE 0x10 ^^^ 2) converting C99 nested function into a closure https://nullprogram.com/blog/2019/11/15/ void intsort2(int *base, size_t nmemb, _Bool invert) { int cmp(const void *a, const void *b) { int r = *(int *)a - *(int *)b; return invert ? -r : r; } qsort(base, nmemb, sizeof(*base), cmp); } will silently require stack trampolines while non-closure version will not. Without doubt this behaviour is documented somewhere, add a warning so that developers and users can at least notice. After so many years of x86_64 having proper executable stack support it should not cause too many problems. Link: http://lkml.kernel.org/r/20191208171918.GC19716@avx2 Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Cc: Dan Carpenter <dan.carpenter@oracle.com> Cc: Will Deacon <will@kernel.org> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-01-31reiserfs: prevent NULL pointer dereference in reiserfs_insert_item()Yunfeng Ye
The variable inode may be NULL in reiserfs_insert_item(), but there is no check before accessing the member of inode. Fix this by adding NULL pointer check before calling reiserfs_debug(). Link: http://lkml.kernel.org/r/79c5135d-ff25-1cc9-4e99-9f572b88cc00@huawei.com Signed-off-by: Yunfeng Ye <yeyunfeng@huawei.com> Cc: zhengbin <zhengbin13@huawei.com> Cc: Hu Shiyuan <hushiyuan@huawei.com> Cc: Feilong Lin <linfeilong@huawei.com> Cc: Jan Kara <jack@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-01-31init/main.c: fix misleading "This architecture does not have kernel memory ↵Christophe Leroy
protection" message This message leads to thinking that memory protection is not implemented for the said architecture, whereas absence of CONFIG_STRICT_KERNEL_RWX only means that memory protection has not been selected at compile time. Don't print this message when CONFIG_ARCH_HAS_STRICT_KERNEL_RWX is selected by the architecture. Instead, print "Kernel memory protection not selected by kernel config." Link: http://lkml.kernel.org/r/62477e446d9685459d4f27d193af6ff1bd69d55f.1578557581.git.christophe.leroy@c-s.fr Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> Acked-by: Kees Cook <keescook@chromium.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-01-31init/main.c: fix quoted value handling in unknown_bootoptionArvind Sankar
Patch series "init/main.c: minor cleanup/bugfix of envvar handling", v2. unknown_bootoption passes unrecognized command line arguments to init as either environment variables or arguments. Some of the logic in the function is broken for quoted command line arguments. When an argument of the form param="value" is processed by parse_args and passed to unknown_bootoption, the command line has param\0"value\0 with val pointing to the beginning of value. The helper function repair_env_string is then used to restore the '=' character that was removed by parse_args, and strip the quotes off fully. This results in param=value\0\0 and val ends up pointing to the 'a' instead of the 'v' in value. This bug was introduced when repair_env_string was refactored into a separate function, and the decrement of val in repair_env_string became dead code. This causes two problems in unknown_bootoption in the two places where the val pointer is used as a substitute for the length of param: 1. An argument of the form param=".value" is misinterpreted as a potential module parameter, with the result that it will not be placed in init's environment. 2. An argument of the form param="value" is checked to see if param is an existing environment variable that should be overwritten, but the comparison is off-by-one and compares 'param=v' instead of 'param=' against the existing environment. So passing, for example, TERM="vt100" on the command line results in init being passed both TERM=linux and TERM=vt100 in its environment. Patch 1 adds logging for the arguments and environment passed to init and is independent of the rest: it can be dropped if this is unnecessarily verbose. Patch 2 removes repair_env_string from initcall parameter parsing in do_initcall_level, as that uses a separate copy of the command line now and the repairing is no longer necessary. Patch 3 fixes the bug in unknown_bootoption by recording the length of param explicitly instead of implying it from val-param. This patch (of 3): Commit a99cd1125189 ("init: fix bug where environment vars can't be passed via boot args") introduced two minor bugs in unknown_bootoption by factoring out the quoted value handling into a separate function. When value is quoted, repair_env_string will move the value up 1 byte to strip the quotes, so val in unknown_bootoption no longer points to the actual location of the value. The result is that an argument of the form param=".value" is mistakenly treated as a potential module parameter and is not placed in init's environment, and an argument of the form param="value" can result in a duplicate environment variable: eg TERM="vt100" on the command line will result in both TERM=linux and TERM=vt100 being placed into init's environment. Fix this by recording the length of the param before calling repair_env_string instead of relying on val. Link: http://lkml.kernel.org/r/20191212180023.24339-4-nivedita@alum.mit.edu Signed-off-by: Arvind Sankar <nivedita@alum.mit.edu> Cc: Chris Metcalf <cmetcalf@tilera.com> Cc: Krzysztof Mazur <krzysiek@podlesie.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-01-31init/main.c: remove unnecessary repair_env_string in do_initcall_levelArvind Sankar
Since commit 08746a65c296 ("init: fix in-place parameter modification regression"), parse_args in do_initcall_level is called on a copy of saved_command_line. It is unnecessary to call repair_env_string during this parsing, as this copy is not used for anything later. Remove the now unnecessary arguments from repair_env_string as well. Link: http://lkml.kernel.org/r/20191212180023.24339-3-nivedita@alum.mit.edu Signed-off-by: Arvind Sankar <nivedita@alum.mit.edu> Cc: Krzysztof Mazur <krzysiek@podlesie.net> Cc: Chris Metcalf <cmetcalf@tilera.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-01-31init/main.c: log arguments and environment passed to initArvind Sankar
Extend logging in `run_init_process` to also show the arguments and environment that we are passing to init. Link: http://lkml.kernel.org/r/20191212180023.24339-2-nivedita@alum.mit.edu Signed-off-by: Arvind Sankar <nivedita@alum.mit.edu> Cc: Chris Metcalf <cmetcalf@tilera.com> Cc: Krzysztof Mazur <krzysiek@podlesie.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-01-31fs/binfmt_elf.c: coredump: allow process with empty address space to coredumpAlexey Dobriyan
Unmapping whole address space at once with munmap(0, (1ULL<<47) - 4096) or equivalent will create empty coredump. It is silly way to exit, however registers content may still be useful. The right to coredump is fundamental right of a process! Link: http://lkml.kernel.org/r/20191222150137.GA1277@avx2 Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-01-31fs/binfmt_elf.c: coredump: delete duplicated overflow checkAlexey Dobriyan
array_size() macro will do overflow check anyway. Link: http://lkml.kernel.org/r/20191222144009.GB24341@avx2 Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-01-31fs/binfmt_elf.c: coredump: allocate core ELF header on stackAlexey Dobriyan
Comment says ELF header is "too large to be on stack". 64 bytes on 64-bit is not large by any means. Link: http://lkml.kernel.org/r/20191222143850.GA24341@avx2 Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-01-31fs/binfmt_elf.c: make BAD_ADDR() unlikelyAlexey Dobriyan
If some mapping goes past TASK_SIZE it will be rejected by kernel which means no such userspace binaries exist. Mark every such check as unlikely. Link: http://lkml.kernel.org/r/20191215124355.GA21124@avx2 Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-01-31fs/binfmt_elf.c: better codegen around current->mmAlexey Dobriyan
"current->mm" pointer is stable in general except few cases one of which execve(2). Compiler can't treat is as stable but it _is_ stable most of the time. During ELF loading process ->mm becomes stable right after flush_old_exec(). Help compiler by caching current->mm, otherwise it continues to refetch it. add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-141 (-141) Function old new delta elf_core_dump 5062 5039 -23 load_elf_binary 5426 5308 -118 Note: other cases are left as is because it is either pessimisation or no change in binary size. Link: http://lkml.kernel.org/r/20191215124755.GB21124@avx2 Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-01-31fs/binfmt_elf.c: don't copy ELF header aroundAlexey Dobriyan
ELF header is read into bprm->buf[] by generic execve code. Save a memcpy and allocate just one header for the interpreter instead of two headers (64 bytes instead of 128 on 64-bit). Link: http://lkml.kernel.org/r/20191208171242.GA19716@avx2 Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-01-31fs/binfmt_elf.c: fix ->start_code calculationAlexey Dobriyan
Only executable segments should be accounted to ->start_code just like they do to ->end_code (correctly). Link: http://lkml.kernel.org/r/20191208171410.GB19716@avx2 Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-01-31fs/binfmt_elf.c: smaller code generation around auxv vector fillAlexey Dobriyan
Filling auxv vector as array with index (auxv[i++] = ...) generates terrible code. "saved_auxv" should be reworked because it is the worst member of mm_struct by size/usefullness ratio but do it later. Meanwhile help gcc a little with *auxv++ idiom. Space savings on x86_64: add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-127 (-127) Function old new delta load_elf_binary 5470 5343 -127 Link: http://lkml.kernel.org/r/20191208172301.GD19716@avx2 Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-01-31lib/find_bit.c: uninline helper _find_next_bit()Yury Norov
It saves 25% of .text for arm64, and more for BE architectures. Before: $ size lib/find_bit.o text data bss dec hex filename 1012 56 0 1068 42c lib/find_bit.o After: $ size lib/find_bit.o text data bss dec hex filename 776 56 0 832 340 lib/find_bit.o Link: http://lkml.kernel.org/r/20200103202846.21616-3-yury.norov@gmail.com Signed-off-by: Yury Norov <yury.norov@gmail.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Allison Randal <allison@lohutok.net> Cc: William Breathitt Gray <vilhelm.gray@gmail.com> Cc: Joe Perches <joe@perches.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-01-31lib/find_bit.c: join _find_next_bit{_le}Yury Norov
_find_next_bit and _find_next_bit_le are very similar functions. It's possible to join them by adding 1 parameter and a couple of simple checks. It's simplify maintenance and make possible to shrink the size of .text by un-inlining the unified function (in the following patch). Link: http://lkml.kernel.org/r/20200103202846.21616-2-yury.norov@gmail.com Signed-off-by: Yury Norov <yury.norov@gmail.com> Cc: Allison Randal <allison@lohutok.net> Cc: Joe Perches <joe@perches.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: William Breathitt Gray <vilhelm.gray@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-01-31uapi: rename ext2_swab() to swab() and share globally in swab.hYury Norov
ext2_swab() is defined locally in lib/find_bit.c However it is not specific to ext2, neither to bitmaps. There are many potential users of it, so rename it to just swab() and move to include/uapi/linux/swab.h ABI guarantees that size of unsigned long corresponds to BITS_PER_LONG, therefore drop unneeded cast. Link: http://lkml.kernel.org/r/20200103202846.21616-1-yury.norov@gmail.com Signed-off-by: Yury Norov <yury.norov@gmail.com> Cc: Allison Randal <allison@lohutok.net> Cc: Joe Perches <joe@perches.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: William Breathitt Gray <vilhelm.gray@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-01-31lib/scatterlist.c: adjust indentation in __sg_alloc_tableNathan Chancellor
Clang warns: ../lib/scatterlist.c:314:5: warning: misleading indentation; statement is not part of the previous 'if' [-Wmisleading-indentation] return -ENOMEM; ^ ../lib/scatterlist.c:311:4: note: previous statement is here if (prv) ^ 1 warning generated. This warning occurs because there is a space before the tab on this line. Remove it so that the indentation is consistent with the Linux kernel coding style and clang no longer warns. Link: http://lkml.kernel.org/r/20191218033606.11942-1-natechancellor@gmail.com Link: https://github.com/ClangBuiltLinux/linux/issues/830 Fixes: edce6820a9fd ("scatterlist: prevent invalid free when alloc fails") Signed-off-by: Nathan Chancellor <natechancellor@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-01-31btrfs: use larger zlib buffer for s390 hardware compressionMikhail Zaslonko
In order to benefit from s390 zlib hardware compression support, increase the btrfs zlib workspace buffer size from 1 to 4 pages (if s390 zlib hardware support is enabled on the machine). This brings up to 60% better performance in hardware on s390 compared to the PAGE_SIZE buffer and much more compared to the software zlib processing in btrfs. In case of memory pressure, fall back to a single page buffer during workspace allocation. The data compressed with larger input buffers will still conform to zlib standard and thus can be decompressed also on a systems that uses only PAGE_SIZE buffer for btrfs zlib. Link: http://lkml.kernel.org/r/20200108105103.29028-1-zaslonko@linux.ibm.com Signed-off-by: Mikhail Zaslonko <zaslonko@linux.ibm.com> Reviewed-by: David Sterba <dsterba@suse.com> Cc: Chris Mason <clm@fb.com> Cc: Josef Bacik <josef@toxicpanda.com> Cc: David Sterba <dsterba@suse.com> Cc: Richard Purdie <rpurdie@rpsys.net> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Vasily Gorbik <gor@linux.ibm.com> Cc: Christian Borntraeger <borntraeger@de.ibm.com> Cc: Eduard Shishkin <edward6@linux.ibm.com> Cc: Ilya Leoshkevich <iii@linux.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
generated by cgit (git 2.34.1) at 2025-09-13 07:49:19 +0000