- 28 Jun, 2021 23 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 mm update from Ingo Molnar: "Do not create the x86/init_pkru debugfs file if the CPU doesn't support PKRU" * tag 'x86-mm-2021-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/pkeys: Skip 'init_pkru' debugfs file creation when pkeys not supported
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 uapi fixlet from Ingo Molnar: "Fix the <uapi/asm/hwcap2.h> UAPI header to build in user-space too" * tag 'x86-misc-2021-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/elf: Use _BITUL() macro in UAPI headers
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 cleanups from Ingo Molnar: "Misc cleanups & removal of obsolete code" * tag 'x86-cleanups-2021-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/sgx: Correct kernel-doc's arg name in sgx_encl_release() doc: Remove references to IBM Calgary x86/setup: Document that Windows reserves the first MiB x86/crash: Remove crash_reserve_low_1M() x86/setup: Remove CONFIG_X86_RESERVE_LOW and reservelow= options x86/alternative: Align insn bytes vertically x86: Fix leftover comment typos x86/asm: Simplify __smp_mb() definition x86/alternatives: Make the x86nops[] symbol static
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 resource control documentation fixes from Ingo Molnar: "Fix Docbook comments in the x86/resctrl code" * tag 'x86-cache-2021-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/resctrl: Fix kernel-doc in internal.h x86/resctrl: Fix kernel-doc in pseudo_lock.c
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 boot update from Ingo Molnar: "Modernize the genimage.sh script, add a 'hdimage' target and EFI support" * tag 'x86-boot-2021-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/boot: Modernize genimage script; hdimage+EFI support
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 asm updates from Ingo Molnar: - Micro-optimize and standardize the do_syscall_64() calling convention - Make syscall entry flags clearing more conservative - Clean up syscall table handling - Clean up & standardize assembly macros, in preparation of FRED - Misc cleanups and fixes * tag 'x86-asm-2021-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/asm: Make <asm/asm.h> valid on cross-builds as well x86/regs: Syscall_get_nr() returns -1 for a non-system call x86/entry: Split PUSH_AND_CLEAR_REGS into two submacros x86/syscall: Maximize MSR_SYSCALL_MASK x86/syscall: Unconditionally prototype {ia32,x32}_sys_call_table[] x86/entry: Reverse arguments to do_syscall_64() x86/entry: Unify definitions from <asm/calling.h> and <asm/ptrace-abi.h> x86/asm: Use _ASM_BYTES() in <asm/nops.h> x86/asm: Add _ASM_BYTES() macro for a .byte ... opcode sequence x86/asm: Have the __ASM_FORM macros handle commas in arguments
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 exception handling updates from Ingo Molnar: - Clean up & simplify AP exception handling setup. - Consolidate the disjoint IDT setup code living in idt_setup_traps() and idt_setup_ist_traps() into a single idt_setup_traps() initialization function and call it before cpu_init(). * tag 'x86-apic-2021-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/idt: Rework IDT setup for boot CPU x86/cpu: Init AP exception handling from cpu_init_secondary()
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull timers/nohz updates from Ingo Molnar: - Micro-optimize tick_nohz_full_cpu() - Optimize idle exit tick restarts to be less eager - Optimize tick_nohz_dep_set_task() to only wake up a single CPU. This reduces IPIs and interruptions on nohz_full CPUs. - Optimize tick_nohz_dep_set_signal() in a similar fashion. - Skip IPIs in tick_nohz_kick_task() when trying to kick a non-running task. - Micro-optimize tick_nohz_task_switch() IRQ flags handling to reduce context switching costs. - Misc cleanups and fixes * tag 'timers-nohz-2021-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: MAINTAINERS: Add myself as context tracking maintainer tick/nohz: Call tick_nohz_task_switch() with interrupts disabled tick/nohz: Kick only _queued_ task whose tick dependency is updated tick/nohz: Change signal tick dependency to wake up CPUs of member tasks tick/nohz: Only wake up a single target cpu when kicking a task tick/nohz: Update nohz_full Kconfig help tick/nohz: Update idle_exittime on actual idle exit tick/nohz: Remove superflous check for CONFIG_VIRT_CPU_ACCOUNTING_NATIVE tick/nohz: Conditionally restart tick on idle exit tick/nohz: Evaluate the CPU expression after the static key
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull scheduler udpates from Ingo Molnar: - Changes to core scheduling facilities: - Add "Core Scheduling" via CONFIG_SCHED_CORE=y, which enables coordinated scheduling across SMT siblings. This is a much requested feature for cloud computing platforms, to allow the flexible utilization of SMT siblings, without exposing untrusted domains to information leaks & side channels, plus to ensure more deterministic computing performance on SMT systems used by heterogenous workloads. There are new prctls to set core scheduling groups, which allows more flexible management of workloads that can share siblings. - Fix task->state access anti-patterns that may result in missed wakeups and rename it to ->__state in the process to catch new abuses. - Load-balancing changes: - Tweak newidle_balance for fair-sched, to improve 'memcache'-like workloads. - "Age" (decay) average idle time, to better track & improve workloads such as 'tbench'. - Fix & improve energy-aware (EAS) balancing logic & metrics. - Fix & improve the uclamp metrics. - Fix task migration (taskset) corner case on !CONFIG_CPUSET. - Fix RT and deadline utilization tracking across policy changes - Introduce a "burstable" CFS controller via cgroups, which allows bursty CPU-bound workloads to borrow a bit against their future quota to improve overall latencies & batching. Can be tweaked via /sys/fs/cgroup/cpu/<X>/cpu.cfs_burst_us. - Rework assymetric topology/capacity detection & handling. - Scheduler statistics & tooling: - Disable delayacct by default, but add a sysctl to enable it at runtime if tooling needs it. Use static keys and other optimizations to make it more palatable. - Use sched_clock() in delayacct, instead of ktime_get_ns(). - Misc cleanups and fixes. * tag 'sched-core-2021-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (72 commits) sched/doc: Update the CPU capacity asymmetry bits sched/topology: Rework CPU capacity asymmetry detection sched/core: Introduce SD_ASYM_CPUCAPACITY_FULL sched_domain flag psi: Fix race between psi_trigger_create/destroy sched/fair: Introduce the burstable CFS controller sched/uclamp: Fix uclamp_tg_restrict() sched/rt: Fix Deadline utilization tracking during policy change sched/rt: Fix RT utilization tracking during policy change sched: Change task_struct::state sched,arch: Remove unused TASK_STATE offsets sched,timer: Use __set_current_state() sched: Add get_current_state() sched,perf,kvm: Fix preemption condition sched: Introduce task_is_running() sched: Unbreak wakeups sched/fair: Age the average idle time sched/cpufreq: Consider reduced CPU capacity in energy calculation sched/fair: Take thermal pressure into account while estimating energy thermal/cpufreq_cooling: Update offline CPUs per-cpu thermal_pressure sched/fair: Return early from update_tg_cfs_load() if delta == 0 ...
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull perf events updates from Ingo Molnar: - Platform PMU driver updates: - x86 Intel uncore driver updates for Skylake (SNR) and Icelake (ICX) servers - Fix RDPMC support - Fix [extended-]PEBS-via-PT support - Fix Sapphire Rapids event constraints - Fix :ppp support on Sapphire Rapids - Fix fixed counter sanity check on Alder Lake & X86_FEATURE_HYBRID_CPU - Other heterogenous-PMU fixes - Kprobes: - Remove the unused and misguided kprobe::fault_handler callbacks. - Warn about kprobes taking a page fault. - Fix the 'nmissed' stat counter. - Misc cleanups and fixes. * tag 'perf-core-2021-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf: Fix task context PMU for Hetero perf/x86/intel: Fix instructions:ppp support in Sapphire Rapids perf/x86/intel: Add more events requires FRONTEND MSR on Sapphire Rapids perf/x86/intel: Fix fixed counter check warning for some Alder Lake perf/x86/intel: Fix PEBS-via-PT reload base value for Extended PEBS perf/x86: Reset the dirty counter to prevent the leak for an RDPMC task kprobes: Do not increment probe miss count in the fault handler x86,kprobes: WARN if kprobes tries to handle a fault kprobes: Remove kprobe::fault_handler uprobes: Update uprobe_write_opcode() kernel-doc comment perf/hw_breakpoint: Fix DocBook warnings in perf hw_breakpoint perf/core: Fix DocBook warnings perf/core: Make local function perf_pmu_snapshot_aux() static perf/x86/intel/uncore: Enable I/O stacks to IIO PMON mapping on ICX perf/x86/intel/uncore: Enable I/O stacks to IIO PMON mapping on SNR perf/x86/intel/uncore: Generalize I/O stacks to PMON mapping procedure perf/x86/intel/uncore: Drop unnecessary NULL checks after container_of()
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull locking updates from Ingo Molnar: - Core locking & atomics: - Convert all architectures to ARCH_ATOMIC: move every architecture to ARCH_ATOMIC, then get rid of ARCH_ATOMIC and all the transitory facilities and #ifdefs. Much reduction in complexity from that series: 63 files changed, 756 insertions(+), 4094 deletions(-) - Self-test enhancements - Futexes: - Add the new FUTEX_LOCK_PI2 ABI, which is a variant that doesn't set FLAGS_CLOCKRT (.e. uses CLOCK_MONOTONIC). [ The temptation to repurpose FUTEX_LOCK_PI's implicit setting of FLAGS_CLOCKRT & invert the flag's meaning to avoid having to introduce a new variant was resisted successfully. ] - Enhance futex self-tests - Lockdep: - Fix dependency path printouts - Optimize trace saving - Broaden & fix wait-context checks - Misc cleanups and fixes. * tag 'locking-core-2021-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (52 commits) locking/lockdep: Correct the description error for check_redundant() futex: Provide FUTEX_LOCK_PI2 to support clock selection futex: Prepare futex_lock_pi() for runtime clock selection lockdep/selftest: Remove wait-type RCU_CALLBACK tests lockdep/selftests: Fix selftests vs PROVE_RAW_LOCK_NESTING lockdep: Fix wait-type for empty stack locking/selftests: Add a selftest for check_irq_usage() lockding/lockdep: Avoid to find wrong lock dep path in check_irq_usage() locking/lockdep: Remove the unnecessary trace saving locking/lockdep: Fix the dep path printing for backwards BFS selftests: futex: Add futex compare requeue test selftests: futex: Add futex wait test seqlock: Remove trailing semicolon in macros locking/lockdep: Reduce LOCKDEP dependency list locking/lockdep,doc: Improve readability of the block matrix locking/atomics: atomic-instrumented: simplify ifdeffery locking/atomic: delete !ARCH_ATOMIC remnants locking/atomic: xtensa: move to ARCH_ATOMIC locking/atomic: sparc: move to ARCH_ATOMIC locking/atomic: sh: move to ARCH_ATOMIC ...
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Linus Torvalds authored
Merge tags 'objtool-urgent-2021-06-28' and 'objtool-core-2021-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull objtool fix and updates from Ingo Molnar: "An ELF format fix for a section flags mismatch bug that breaks kernel tooling such as kpatch-build. The biggest change in this cycle is the new code to handle and rewrite variable sized jump labels - which results in slightly tighter code generation in hot paths, through the use of short(er) NOPs. Also a number of cleanups and fixes, and a change to the generic include/linux/compiler.h to handle a s390 GCC quirk" * tag 'objtool-urgent-2021-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: objtool: Don't make .altinstructions writable * tag 'objtool-core-2021-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: objtool: Improve reloc hash size guestimate instrumentation.h: Avoid using inline asm operand modifiers compiler.h: Avoid using inline asm operand modifiers kbuild: Fix objtool dependency for 'OBJECT_FILES_NON_STANDARD_<obj> := n' objtool: Reflow handle_jump_alt() jump_label/x86: Remove unused JUMP_LABEL_NOP_SIZE jump_label, x86: Allow short NOPs objtool: Provide stats for jump_labels objtool: Rewrite jump_label instructions objtool: Decode jump_entry::key addend jump_label, x86: Emit short JMP jump_label: Free jump_entry::key bit1 for build use jump_label, x86: Add variable length patching support jump_label, x86: Introduce jump_entry_size() jump_label, x86: Improve error when we fail expected text jump_label, x86: Factor out the __jump_table generation jump_label, x86: Strip ASM jump_label support x86, objtool: Dont exclude arch/x86/realmode/ objtool: Rewrite hashtable sizing
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull EFI updates from Ingo Molnar: "Two driver API cleanups, and a log message tweak" * tag 'efi-core-2021-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/efi: Log 32/64-bit mismatch with kernel as an error efi/dev-path-parser: Switch to use for_each_acpi_dev_match() efi/apple-properties: Handle device properties with software node API
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 SEV updates from Borislav Petkov: - Differentiate the type of exception the #VC handler raises depending on code executed in the guest and handle the case where failure to get the RIP would result in a #GP, as it should, instead of in a #PF - Disable interrupts while the per-CPU GHCB is held - Split the #VC handler depending on where the #VC exception has happened and therefore provide for precise context tracking like the rest of the exception handlers deal with noinstr regions now - Add defines for the GHCB version 2 protocol so that further shared development with KVM can happen without merge conflicts - The usual small cleanups * tag 'x86_sev_for_v5.14_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/sev: Use "SEV: " prefix for messages from sev.c x86/sev: Add defines for GHCB version 2 MSR protocol requests x86/sev: Split up runtime #VC handler for correct state tracking x86/sev: Make sure IRQs are disabled while GHCB is active x86/sev: Propagate #GP if getting linear instruction address failed x86/insn: Extend error reporting from insn_fetch_from_user[_inatomic]() x86/insn-eval: Make 0 a valid RIP for insn_get_effective_ip() x86/sev: Fix error message in runtime #VC handler
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 cpu updates from Borislav Petkov: - New AMD models support - Allow MONITOR/MWAIT to be used for C1 state entry on Hygon too - Use the special RAPL CPUID bit to detect the functionality on AMD and Hygon instead of doing family matching. - Add support for new Intel microcode deprecating TSX on some models and do not enable kernel workarounds for those CPUs when TSX transactions always abort, as a result of that microcode update. * tag 'x86_cpu_for_v5.14_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/tsx: Clear CPUID bits when TSX always force aborts x86/events/intel: Do not deploy TSX force abort workaround when TSX is deprecated x86/msr: Define new bits in TSX_FORCE_ABORT MSR perf/x86/rapl: Use CPUID bit on AMD and Hygon parts x86/cstate: Allow ACPI C1 FFH MWAIT use on Hygon systems x86/amd_nb: Add AMD family 19h model 50h PCI ids x86/cpu: Fix core name for Sapphire Rapids
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 RAS updates from Borislav Petkov: - Add the required information to the faked APEI-reported mem error so that the kernel properly attempts to offline the corresponding page, as it does for kernel-detected correctable errors. - Fix a typo in AMD's error descriptions. * tag 'ras_core_for_v5.14_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: EDAC/mce_amd: Fix typo "FIfo" -> "Fifo" x86/mce: Include a MCi_MISC value in faked mce logs x86/MCE/AMD, EDAC/mce_amd: Add new SMCA bank types
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git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-stagingLinus Torvalds authored
Pull hwmon updates from Guenter Roeck: "New drivers: - Delta DPS920AB - Flex PIM4006, PIM4328 and PIM4820 - MPS MP2888 - Sensirion SHT4X Added chip support to existing drivers: - Flex BMR310, BMR456, BMR457, BMR458, BMR480, BMR490, BMR491, and BMR492 - TI TMP1075 - Renesas ZLS1003, ZLS4009 and ZL8802 Other: - Dropped explicit ACPI support for MAX31722 and LM70; the APIC IDs in those drivers do not exist. - Support set_trips() callback into thermal subsystem - Minor fixes and improvements in various drivers" * tag 'hwmon-for-v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (49 commits) hwmon: Support set_trips() of thermal device ops hwmon: (lm90) Prevent integer underflows of temperature calculations hwmon: (lm90) Disable interrupt on suspend hwmon: (lm90) Unmask hardware interrupt hwmon: (lm90) Use hwmon_notify_event() hwmon: (lm90) Don't override interrupt trigger type hwmon: (pmbus/dps920ab) Delete some dead code hwmon: (ntc_thermistor) Drop unused headers. MAINTAINERS: Add Delta DPS920AB PSU driver dt-bindings: trivial-devices: Add Delta DPS920AB hwmon: (pmbus) Add driver for Delta DPS-920AB PSU hwmon: (pmbus/pim4328) Add documentation for the pim4328 PMBus driver hwmon: (pmbus/pim4328) Add PMBus driver for PIM4006, PIM4328 and PIM4820 hwmon: (pmbus) Allow phase function even if it's not on page hwmon: (pmbus) Add support for reading direct mode coefficients hwmon: (pmbus) Add new pmbus flag NO_WRITE_PROTECT docs: hwmon: adm1177.rst: avoid using ReSt :doc:`foo` markup hwmon: (pmbus_core) Check adapter PEC support hwmon: (ina3221) use CVRF only for single-shot conversion hwmon: (max31790) Detect and report zero fan speed ...
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spiLinus Torvalds authored
Pull spi updates from Mark Brown: "The biggest single thing in the diffstat here is a massive overhaul of the PXA2xx driver from Andy Shevchenko (the IP is still in use on modern Intel systems), though we also have quite a lot of core work as well: - Better support for mixing native and GPIO chip selects also from Andy. - Support for devices with multiple chip selects from Sebastian Reichel. - Helper for polling status registers in spi-mem from Patrice Chotard. - Support for Renesas RZ/N1 and Rockchip RV1126" * tag 'spi-v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (86 commits) spi: core: add dma_map_dev for dma device spi: convert Xilinx Zynq UltraScale+ MPSoC GQSPI bindings to YAML spi: Fix self assignment issue with ancillary->mode spi: spi-sh-msiof: : use proper DMAENGINE API for termination spi: spi-rspi: : use proper DMAENGINE API for termination spi: spi-rockchip: add description for rv1126 spi: rockchip: Support SPI_CS_HIGH spi: rockchip: Support cs-gpio spi: rockchip: Wait for STB status in slave mode tx_xfer spi: rockchip: Set rx_fifo interrupt waterline base on transfer item spi: rockchip: add compatible string for rv1126 spi: spi-sun6i: Fix chipselect/clock bug spi: dt-bindings: support devices with multiple chipselects spi: add ancillary device support spi: xilinx: convert to yaml spi: convert Cadence SPI bindings to YAML spi: stm32-qspi: Remove unused qspi field of struct stm32_qspi_flash spi: add of_device_uevent_modalias support spi: meson-spicc: fix memory leak in meson_spicc_probe spi: meson-spicc: fix a wrong goto jump for avoiding memory leak. ...
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulatorLinus Torvalds authored
Pull regulator updates from Mark Brown: "The main core change this release is generic support for handling of hardware errors from Matti Vaittinen, including some small updates to the reboot and thermal code so we can share support for powering off the system if things are going wrong enough. Otherwise this release we've mainly seen the addition of new drivers, including MT6359 which has pulled in some small changes from the MFD tree for build dependencies. - Support for controlling the trigger points for hardware error detection, and shared handlers for this. - Support for Maxim MAX8993, Mediatek MT6359 and MT6359P, Qualcomm PM8226 and SA8115P-ADP, and Sylergy TCS4526" * tag 'regulator-v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (91 commits) regulator: bd9576: Fix uninitializes variable may_have_irqs regulator: max8893: Select REGMAP_I2C to fix build error regulator: da9052: Ensure enough delay time for .set_voltage_time_sel regulator: mt6358: Fix vdram2 .vsel_mask regulator: hi6421v600: Fix setting wrong driver_data MAINTAINERS: Add reviewer for regulator irq_helpers regulator: bd9576: Fix the driver name in id table regulator: bd9576: Support error reporting regulator: bd9576 add FET ON-resistance for OCW regulator: add property parsing and callbacks to set protection limits regulator: IRQ based event/error notification helpers regulator: move rdev_print helpers to internal.h regulator: add warning flags thermal: Use generic HW-protection shutdown API reboot: Add hardware protection power-off regulator: Add protection limit properties regulator: hi6421v600: Fix setting idle mode regulator: Add MAX8893 bindings regulator: max8893: add regulator driver regulator: hi6421: Use correct variable type for regmap api val argument ...
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmapLinus Torvalds authored
Pull regmap updates from Mark Brown: "The big thing this release is support for accessing the register maps of MDIO devices via the framework. We've also added support for 7/17 register formats on bytestream transports and inverted status registers in regmap-irq" * tag 'regmap-v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap: regmap: mdio: Reject invalid addresses regmap: mdio: Fix regmap_bus pointer constness regmap: mdio: Add clause-45 support regmap: mdio: Clean up invalid clause-22 addresses regmap-irq: Introduce inverted status registers support regmap: add support for 7/17 register formating regmap: mdio: Don't modify output if error happened regmap: Add MDIO bus support regmap-i2c: Set regmap max raw r/w from quirks
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git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmcLinus Torvalds authored
Pull MMC and MEMSTICK updates from Ulf Hansson: "MMC core: - Add support for Cache Ctrl for SD cards - Add support for Power Off Notification for SD cards - Add support for read/write of the SD function extension registers - Allow broken eMMC HS400 mode to be disabled via DT - Allow UHS-I voltage switch for SDSC cards if supported - Disable command queueing in the ioctl path - Enable eMMC sleep commands to use HW busy polling to minimize delay - Extend re-use of the common polling loop to standardize behaviour - Take into account MMC_CAP_NEED_RSP_BUSY for eMMC HPI commands MMC host: - jz4740: Add support for the JZ4775 variant - sdhci-acpi: Disable write protect detection on Toshiba Encore 2 WT8-B - sdhci-esdhc-imx: Advertise HS400 support through MMC caps - sdhci-esdhc-imx: Enable support for system wakeup for SDIO - sdhci-iproc: Add support for the legacy sdhci controller on the BCM7211 - vub3000: Fix control-request direction MEMSTICK: - A couple of fixes/cleanups" * tag 'mmc-v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: (54 commits) mmc: sdhci-iproc: Add support for the legacy sdhci controller on the BCM7211 dt-bindings: mmc: sdhci-iproc: Add brcm,bcm7211a0-sdhci mmc: JZ4740: Add support for JZ4775 dt-bindings: mmc: JZ4740: Add bindings for JZ4775 mmc: sdhci-esdhc-imx: Enable support for system wakeup for SDIO mmc: Improve function name when aborting a tuning cmd mmc: sdhci-of-aspeed: Turn down a phase correction warning mmc: debugfs: add description for module parameter mmc: via-sdmmc: add a check against NULL pointer dereference mmc: sdhci-sprd: use sdhci_sprd_writew mmc: sdhci-esdhc-imx: remove unused is_imx6q_usdhc mmc: core: Allow UHS-I voltage switch for SDSC cards if supported mmc: mmc_spi: Imply container_of() to be no-op mmc: mmc_spi: Drop duplicate 'mmc_spi' in the debug messages mmc: dw_mmc-pltfm: Remove unused <linux/clk.h> mmc: sdhci-of-aspeed: Configure the SDHCIs as specified by the devicetree. mmc: core: Add a missing SPDX license header mmc: vub3000: fix control-request direction mmc: sdhci-omap: Use pm_runtime_resume_and_get() to replace open coding mmc: sdhci_am654: Use pm_runtime_resume_and_get() to replace open coding ...
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git://git.kernel.dk/linux-blockLinus Torvalds authored
Pull libata updates from Jens Axboe: "The big change in this round is that we're finally in a position where we can sanely remove the old drivers/ide/ code, as libata covers everything we need by now. This is exciting for two reasons: 1) we delete a lot of legacy code that doesn't really meet the standards we have today, and 2) it enables us to clean up various bits in the block layer that exist only because of the old IDE code. Outside of that, just a few minor fixes here, fixups for warnings, etc" * tag 'for-5.14/libata-2021-06-27' of git://git.kernel.dk/linux-block: (29 commits) ata: rb532_cf: remove redundant codes ide: remove the legacy ide driver m68k: use libata instead of the legacy ide driver ARM: disable CONFIG_IDE in pxa_defconfig ARM: disable CONFIG_IDE in footbridge_defconfig alpha: use libata instead of the legacy ide driver pata_cypress: add a module option to disable BM-DMA ata: pata_macio: Avoid overwriting initialised field in 'pata_macio_sht' ata: pata_serverworks: Avoid overwriting initialised field in 'serverworks_osb4_sht ata: pata_sc1200: sc1200_sht'Avoid overwriting initialised field in ' ata: pata_cs5530: Avoid overwriting initialised field in 'cs5530_sht' ata: pata_cs5520: Avoid overwriting initialised field in 'cs5520_sht' ata: pata_atiixp: Avoid overwriting initialised field in 'atiixp_sht' ata: sata_nv: Do not over-write initialise fields in 'nv_adma_sht' and 'nv_swncq_sht' ata: sata_mv: Do not over-write initialise fields in 'mv6_sht' ata: sata_sil24: Do not over-write initialise fields in 'sil24_sht' ata: ahci: Ensure initialised fields are not overwritten in AHCI_SHT() ata: include: libata: Move fields commonly over-written to separate MACRO ahci: Add support for Dell S140 and later controllers ata: ahci_sunxi: Disable DIPM ...
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Mel Gorman authored
Dave Jones reported the following This made it into 5.13 final, and completely breaks NFSD for me (Serving tcp v3 mounts). Existing mounts on clients hang, as do new mounts from new clients. Rebooting the server back to rc7 everything recovers. The commit b3b64ebd ("mm/page_alloc: do bulk array bounds check after checking populated elements") returns the wrong value if the array is already populated which is interpreted as an allocation failure. Dave reported this fixes his problem and it also passed a test running dbench over NFS. Fixes: b3b64ebd ("mm/page_alloc: do bulk array bounds check after checking populated elements") Reported-and-tested-by: Dave Jones <davej@codemonkey.org.uk> Signed-off-by: Mel Gorman <mgorman@techsingularity.net> Cc: <stable@vger.kernel.org> [5.13+] Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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- 27 Jun, 2021 2 commits
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Linus Torvalds authored
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Linus Torvalds authored
This reverts commits 4bad58eb (and 399f8dd9, which tried to fix it). I do not believe these are correct, and I'm about to release 5.13, so am reverting them out of an abundance of caution. The locking is odd, and appears broken. On the allocation side (in __sigqueue_alloc()), the locking is somewhat straightforward: it depends on sighand->siglock. Since one caller doesn't hold that lock, it further then tests 'sigqueue_flags' to avoid the case with no locks held. On the freeing side (in sigqueue_cache_or_free()), there is no locking at all, and the logic instead depends on 'current' being a single thread, and not able to race with itself. To make things more exciting, there's also the data race between freeing a signal and allocating one, which is handled by using WRITE_ONCE() and READ_ONCE(), and being mutually exclusive wrt the initial state (ie freeing will only free if the old state was NULL, while allocating will obviously only use the value if it was non-NULL, so only one or the other will actually act on the value). However, while the free->alloc paths do seem mutually exclusive thanks to just the data value dependency, it's not clear what the memory ordering constraints are on it. Could writes from the previous allocation possibly be delayed and seen by the new allocation later, causing logical inconsistencies? So it's all very exciting and unusual. And in particular, it seems that the freeing side is incorrect in depending on "current" being single-threaded. Yes, 'current' is a single thread, but in the presense of asynchronous events even a single thread can have data races. And such asynchronous events can and do happen, with interrupts causing signals to be flushed and thus free'd (for example - sending a SIGCONT/SIGSTOP can happen from interrupt context, and can flush previously queued process control signals). So regardless of all the other questions about the memory ordering and locking for this new cached allocation, the sigqueue_cache_or_free() assumptions seem to be fundamentally incorrect. It may be that people will show me the errors of my ways, and tell me why this is all safe after all. We can reinstate it if so. But my current belief is that the WRITE_ONCE() that sets the cached entry needs to be a smp_store_release(), and the READ_ONCE() that finds a cached entry needs to be a smp_load_acquire() to handle memory ordering correctly. And the sequence in sigqueue_cache_or_free() would need to either use a lock or at least be interrupt-safe some way (perhaps by using something like the percpu 'cmpxchg': it doesn't need to be SMP-safe, but like the percpu operations it needs to be interrupt-safe). Fixes: 399f8dd9 ("signal: Prevent sigqueue caching after task got released") Fixes: 4bad58eb ("signal: Allow tasks to cache one sigqueue struct") Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Christian Brauner <christian.brauner@ubuntu.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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- 26 Jun, 2021 2 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/s390/linuxLinus Torvalds authored
Pull s390 fixes from Vasily Gorbik: - Fix a couple of late pt_regs flags handling findings of conversion to generic entry. - Fix potential register clobbering in stack switch helper. - Fix thread/group masks for offline cpus. - Fix cleanup of mdev resources when remove callback is invoked in vfio-ap code. * tag 's390-5.13-5' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: s390/stack: fix possible register corruption with stack switch helper s390/topology: clear thread/group maps for offline cpus s390/vfio-ap: clean up mdev resources when remove callback invoked s390: clear pt_regs::flags on irq entry s390: fix system call restart with multiple signals
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git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrlLinus Torvalds authored
Pull pin control fixes from Linus Walleij: "Two last-minute fixes: - Put an fwnode in the errorpath in the SGPIO driver - Fix the number of GPIO lines per bank in the STM32 driver" * tag 'pinctrl-v5.13-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: pinctrl: stm32: fix the reported number of GPIO lines per bank pinctrl: microchip-sgpio: Put fwnode in error case during ->probe()
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- 25 Jun, 2021 13 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsiLinus Torvalds authored
Pull SCSI fixes from James Bottomley: "Two small fixes, both in upper layer drivers (scsi disk and cdrom). The sd one is fixing a commit changing revalidation that came from the block tree a while ago (5.10) and the sr one adds handling of a condition we didn't previously handle for manually removed media" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: scsi: sd: Call sd_revalidate_disk() for ioctl(BLKRRPART) scsi: sr: Return appropriate error code when disk is ejected
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Linus Torvalds authored
Merge misc fixes from Andrew Morton: "24 patches, based on 4a09d388. Subsystems affected by this patch series: mm (thp, vmalloc, hugetlb, memory-failure, and pagealloc), nilfs2, kthread, MAINTAINERS, and mailmap" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (24 commits) mailmap: add Marek's other e-mail address and identity without diacritics MAINTAINERS: fix Marek's identity again mm/page_alloc: do bulk array bounds check after checking populated elements mm/page_alloc: __alloc_pages_bulk(): do bounds check before accessing array mm/hwpoison: do not lock page again when me_huge_page() successfully recovers mm,hwpoison: return -EHWPOISON to denote that the page has already been poisoned mm/memory-failure: use a mutex to avoid memory_failure() races mm, futex: fix shared futex pgoff on shmem huge page kthread: prevent deadlock when kthread_mod_delayed_work() races with kthread_cancel_delayed_work_sync() kthread_worker: split code for canceling the delayed work timer mm/vmalloc: unbreak kasan vmalloc support KVM: s390: prepare for hugepage vmalloc mm/vmalloc: add vmalloc_no_huge nilfs2: fix memory leak in nilfs_sysfs_delete_device_group mm/thp: another PVMW_SYNC fix in page_vma_mapped_walk() mm/thp: fix page_vma_mapped_walk() if THP mapped by ptes mm: page_vma_mapped_walk(): get vma_address_end() earlier mm: page_vma_mapped_walk(): use goto instead of while (1) mm: page_vma_mapped_walk(): add a level of indentation mm: page_vma_mapped_walk(): crossing page table boundary ...
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Gleb Fotengauer-Malinovskiy authored
This ioctl request reads from uffdio_continue structure written by userspace which justifies _IOC_WRITE flag. It also writes back to that structure which justifies _IOC_READ flag. See NOTEs in include/uapi/asm-generic/ioctl.h for more information. Fixes: f6191471 ("userfaultfd: add UFFDIO_CONTINUE ioctl") Signed-off-by: Gleb Fotengauer-Malinovskiy <glebfm@altlinux.org> Acked-by: Peter Xu <peterx@redhat.com> Reviewed-by: Axel Rasmussen <axelrasmussen@google.com> Reviewed-by: Dmitry V. Levin <ldv@altlinux.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linuxLinus Torvalds authored
Pull i2c fixes from Wolfram Sang: "Three more driver bugfixes and an annotation fix for the core" * 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: i2c: robotfuzz-osif: fix control-request directions i2c: dev: Add __user annotation i2c: cp2615: check for allocation failure in cp2615_i2c_recv() i2c: i801: Ensure that SMBHSTSTS_INUSE_STS is cleared when leaving i801_access
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pmLinus Torvalds authored
Pull device properties framework fix from Rafael Wysocki: "Fix a NULL pointer dereference introduced by a recent commit and occurring when device_remove_software_node() is used with a device that has never been registered (Heikki Krogerus)" * tag 'devprop-5.13-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: software node: Handle software node injection to an existing device properly
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git://git.kernel.org/pub/scm/linux/kernel/git/xen/tipLinus Torvalds authored
Pull xen fix from Juergen Gross: "A fix for a regression introduced in 5.12: when migrating an irq related to a Xen user event to another cpu, a race might result in a WARN() triggering" * tag 'for-linus-5.13b-rc8-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: xen/events: reset active flag for lateeoi events later
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git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds authored
Pull kvm fixes from Paolo Bonzini: "A selftests fix for ARM, and the fix for page reference count underflow. This is a very small fix that was provided by Nick Piggin and tested by myself" * tag 'for-linus-urgent' of git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: do not allow mapping valid but non-reference-counted pages KVM: selftests: Fix mapping length truncation in m{,un}map()
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 fixes from Borislav Petkov: "Two more urgent FPU fixes: - prevent unprivileged userspace from reinitializing supervisor states - prepare init_fpstate, which is the buffer used when initializing FPU state, properly in case the skip-writing-state-components XSAVE* variants are used" * tag 'x86_urgent_for_v5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/fpu: Make init_fpstate correct with optimized XSAVE x86/fpu: Preserve supervisor states in sanitize_restored_user_xstate()
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https://github.com/ceph/ceph-clientLinus Torvalds authored
Pull ceph fixes from Ilya Dryomov: "Two regression fixes from the merge window: one in the auth code affecting old clusters and one in the filesystem for proper propagation of MDS request errors. Also included a locking fix for async creates, marked for stable" * tag 'ceph-for-5.13-rc8' of https://github.com/ceph/ceph-client: libceph: set global_id as soon as we get an auth ticket libceph: don't pass result into ac->ops->handle_reply() ceph: fix error handling in ceph_atomic_open and ceph_lookup ceph: must hold snap_rwsem when filling inode for async create
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git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fsLinus Torvalds authored
Pull netfs fixes from David Howells: "This contains patches to fix netfs_write_begin() and afs_write_end() in the following ways: (1) In netfs_write_begin(), extract the decision about whether to skip a page out to its own helper and have that clear around the region to be written, but not clear that region. This requires the filesystem to patch it up afterwards if the hole doesn't get completely filled. (2) Use offset_in_thp() in (1) rather than manually calculating the offset into the page. (3) Due to (1), afs_write_end() now needs to handle short data write into the page by generic_perform_write(). I've adopted an analogous approach to ceph of just returning 0 in this case and letting the caller go round again. It also adds a note that (in the future) the len parameter may extend beyond the page allocated. This is because the page allocation is deferred to write_begin() and that gets to decide what size of THP to allocate." Jeff Layton points out: "The netfs fix in particular fixes a data corruption bug in cephfs" * tag 'netfs-fixes-20210621' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs: netfs: fix test for whether we can skip read when writing beyond EOF afs: Fix afs_write_end() to handle short writes
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git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linuxLinus Torvalds authored
Pull gpio fixes from Bartosz Golaszewski: - fix wake-up interrupt support on gpio-mxc - zero the padding bytes in a structure passed to user-space in the GPIO character device - require HAS_IOPORT_MAP in two drivers that need it to fix a Kbuild issue * tag 'gpio-fixes-for-v5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: gpio: AMD8111 and TQMX86 require HAS_IOPORT_MAP gpiolib: cdev: zero padding during conversion to gpioline_info_changed gpio: mxc: Fix disabled interrupt wake-up support
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/soundLinus Torvalds authored
Pull sound fixes from Takashi Iwai: "Two small changes have been cherry-picked as a last material for 5.13: a coverage after UMN revert action and a stale MAINTAINERS entry fix" * tag 'sound-5.13-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: MAINTAINERS: remove Timur Tabi from Freescale SOC sound drivers ASoC: rt5645: Avoid upgrading static warnings to errors
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Mark Brown authored
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